diff --git a/bsp/bluetrum/ab32vg1-ab-prougen/README.md b/bsp/bluetrum/ab32vg1-ab-prougen/README.md
index 6f24c84c46..1e56724f35 100644
--- a/bsp/bluetrum/ab32vg1-ab-prougen/README.md
+++ b/bsp/bluetrum/ab32vg1-ab-prougen/README.md
@@ -68,6 +68,8 @@ ab32vg1-prougen 是 中科蓝讯(Bluetrum) 推出的一款基于 RISC-V 内核
 
 本 BSP 为开发者提供 GCC 开发环境。下面介绍如何将系统运行起来。
 
+教学视频：https://www.bilibili.com/video/BV1RV411v75P/
+
 #### 硬件连接
 
 使用数据线连接开发板到 PC，打开电源开关。
@@ -94,13 +96,12 @@ msh >
 此 BSP 默认只开启了 GPIO 和 串口0 的功能，如果需使用 SD 卡、Flash 等更多高级功能，需要利用 ENV 工具对BSP 进行配置，步骤如下：
 
 1. 在 bsp 下打开 env 工具。
-
 2. 输入`menuconfig`命令配置工程，配置好之后保存退出。
-
 3. 输入`pkgs --update`命令更新软件包。
-
 4. 输入`scons` 命令重新编译工程。
 
+更多细节请参见使用指南：https://ab32vg1-example.readthedocs.io/zh/latest/introduction.html
+
 ## 注意事项
 
 波特率默认为 1.5M，需要使用 [Downloader](https://github.com/BLUETRUM/Downloader) 下载 `.dcf` 到芯片，需要编译后自动下载，需要在 `Downloader` 中的下载的下拉窗中选择 `自动`；目前暂时屏蔽 uart1 打印
diff --git a/bsp/bluetrum/libraries/hal_drivers/drv_common.h b/bsp/bluetrum/libraries/hal_drivers/drv_common.h
index 0696bb17f3..3af014f49a 100644
--- a/bsp/bluetrum/libraries/hal_drivers/drv_common.h
+++ b/bsp/bluetrum/libraries/hal_drivers/drv_common.h
@@ -15,4 +15,6 @@
 #include <rthw.h>
 #include <rtdevice.h>
 
+#define GET_PIN(PORTx,PIN) (uint8_t)__AB32_GET_PIN_##PORTx(PIN)
+
 #endif // DRV_COMMON_H__
diff --git a/bsp/bluetrum/libraries/hal_drivers/drv_gpio.h b/bsp/bluetrum/libraries/hal_drivers/drv_gpio.h
index 7955a47d11..55cf2efc00 100644
--- a/bsp/bluetrum/libraries/hal_drivers/drv_gpio.h
+++ b/bsp/bluetrum/libraries/hal_drivers/drv_gpio.h
@@ -15,6 +15,10 @@
 #include "board.h"
 
 #define __AB32_PORT(port)   GPIO##port
+#define __AB32_GET_PIN_A(PIN)  PIN
+#define __AB32_GET_PIN_B(PIN)  8 + PIN
+#define __AB32_GET_PIN_E(PIN)  13 + PIN
+#define __AB32_GET_PIN_F(PIN)  21 + PIN
 
 int rt_hw_pin_init(void);
 
diff --git a/bsp/nuvoton/README.md b/bsp/nuvoton/README.md
index dfa048ab2f..9d0c433984 100644
--- a/bsp/nuvoton/README.md
+++ b/bsp/nuvoton/README.md
@@ -1,4 +1,4 @@
-# Nuvoton BSP descriptions
+�? Nuvoton BSP descriptions
 Current supported BSP shown in below table:
 
 | **BSP folder** | **Board name** |
@@ -6,4 +6,5 @@ Current supported BSP shown in below table:
 | [numaker-iot-m487](numaker-iot-m487) | Nuvoton NuMaker-IoT-M487 |
 | [numaker-pfm-m487](numaker-pfm-m487) | Nuvoton NuMaker-PFM-M487 |
 | [nk-980iot](nk-980iot) | Nuvoton NK-980IOT |
-| [numaker-m2354](numaker-m2354) | Nuvoton NuMaker-M2354 |
\ No newline at end of file
+| [numaker-m2354](numaker-m2354) | Nuvoton NuMaker-M2354 |
+| [nk-rtu980](nk-rtu980) | Nuvoton NK-RTU980 |
\ No newline at end of file
diff --git a/bsp/nuvoton/libraries/m2354/Device/Nuvoton/M2354/Include/NuMicro.h b/bsp/nuvoton/libraries/m2354/Device/Nuvoton/M2354/Include/NuMicro.h
index 548ab843cc..cccccd4e7a 100644
--- a/bsp/nuvoton/libraries/m2354/Device/Nuvoton/M2354/Include/NuMicro.h
+++ b/bsp/nuvoton/libraries/m2354/Device/Nuvoton/M2354/Include/NuMicro.h
@@ -9,6 +9,7 @@
 #ifndef __NUMICRO_H__
 #define __NUMICRO_H__
 
+#include "nutool_clkcfg.h"
 #include "M2354.h"
 
 #endif  /* __NUMICRO_H__ */
diff --git a/bsp/nuvoton/libraries/m2354/Device/Nuvoton/M2354/Include/system_M2354.h b/bsp/nuvoton/libraries/m2354/Device/Nuvoton/M2354/Include/system_M2354.h
index ba5bbc1f4d..edf1e3e6e5 100644
--- a/bsp/nuvoton/libraries/m2354/Device/Nuvoton/M2354/Include/system_M2354.h
+++ b/bsp/nuvoton/libraries/m2354/Device/Nuvoton/M2354/Include/system_M2354.h
@@ -49,11 +49,21 @@ extern "C" {
 /*----------------------------------------------------------------------------
   Define SYSCLK
  *----------------------------------------------------------------------------*/
+#ifndef __HXT
 #define __HXT       (12000000UL)    /*!< External Crystal Clock Frequency     */
+#endif
+
 #define __LIRC      (32000UL)       /*!< Internal 32K RC Oscillator Frequency */
 #define __HIRC      (12000000UL)    /*!< Internal 12M RC Oscillator Frequency */
+
+#ifndef __LXT
 #define __LXT       (32768UL)       /*!< External Crystal Clock Frequency 32.768KHz */
+#endif
+
+#ifndef __HSI
 #define __HSI       (48000000UL)    /*!< PLL Output Clock Frequency */
+#endif
+
 #define __HIRC48    (48000000UL)    /*!< Internal 48M RC Oscillator Frequency */
 #define __LIRC32    (32000UL)       /*!< Internal 32K RC Oscillator Frequency */
 #define __MIRC      (4000000UL)     /*!< Internal 4M RC Oscillator Frequency */
@@ -93,7 +103,7 @@ extern uint32_t __PC(void);         /*!< Return the current program counter valu
  */
 #define ASSERT_PARAM(expr)  { if (!(expr)) { AssertError((uint8_t*)__FILE__, __LINE__); } }
 
-void AssertError(uint8_t* file, uint32_t line);
+void AssertError(uint8_t *file, uint32_t line);
 #else
 #define ASSERT_PARAM(expr)
 #endif
diff --git a/bsp/nuvoton/libraries/m2354/StdDriver/lib/libStdDriver.ewp b/bsp/nuvoton/libraries/m2354/StdDriver/lib/libStdDriver.ewp
index 555ab69852..69c44b7d03 100644
--- a/bsp/nuvoton/libraries/m2354/StdDriver/lib/libStdDriver.ewp
+++ b/bsp/nuvoton/libraries/m2354/StdDriver/lib/libStdDriver.ewp
@@ -348,6 +348,7 @@
                     <state>$PROJ_DIR$\..\..\Device\Nuvoton\M2354\Include</state>
                     <state>$PROJ_DIR$\..\..\CMSIS\Include</state>
                     <state>$PROJ_DIR$\..\inc</state>
+                    <state>$PROJ_DIR$</state>
                 </option>
                 <option>
                     <name>CCStdIncCheck</name>
@@ -1385,6 +1386,7 @@
                     <state>$PROJ_DIR$\..\..\Device\Nuvoton\M2354\Include</state>
                     <state>$PROJ_DIR$\..\..\CMSIS\Include</state>
                     <state>$PROJ_DIR$\..\inc</state>
+                    <state>$PROJ_DIR$</state>
                 </option>
                 <option>
                     <name>CCStdIncCheck</name>
diff --git a/bsp/nuvoton/libraries/m2354/StdDriver/lib/libStdDriver.uvprojx b/bsp/nuvoton/libraries/m2354/StdDriver/lib/libStdDriver.uvprojx
index a847869d1c..b28ca38daf 100644
--- a/bsp/nuvoton/libraries/m2354/StdDriver/lib/libStdDriver.uvprojx
+++ b/bsp/nuvoton/libraries/m2354/StdDriver/lib/libStdDriver.uvprojx
@@ -338,7 +338,7 @@
               <MiscControls></MiscControls>
               <Define></Define>
               <Undefine></Undefine>
-              <IncludePath>..\inc;..\..\CMSIS\Include;..\..\Device\Nuvoton\M2354\Include</IncludePath>
+              <IncludePath>..\inc;..\..\CMSIS\Include;..\..\Device\Nuvoton\M2354\Include;.</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_bpwm_capture.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_bpwm_capture.c
index d7240768de..5c3b634e5e 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_bpwm_capture.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_bpwm_capture.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_BPWM_CAPTURE)
 #if ((BSP_USING_BPWM0_CAPTURE_CHMSK+BSP_USING_BPWM1_CAPTURE_CHMSK)!=0)
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private typedef --------------------------------------------------------------*/
 typedef struct _bpwm_dev
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_can.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_can.c
index 8bf2a703e1..614705fcc5 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_can.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_can.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private Define ---------------------------------------------------------------*/
 #define RX_MSG_ID_INDEX        16
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_clk.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_clk.c
index db79a541f9..92de24a86f 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_clk.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_clk.c
@@ -18,7 +18,7 @@
 #include <rtdbg.h>
 #include <stdint.h>
 #include <string.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 
 /* Private define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/numaker-m2354/board/board.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_common.c
similarity index 74%
rename from bsp/nuvoton/numaker-m2354/board/board.c
rename to bsp/nuvoton/libraries/m2354/rtt_port/drv_common.c
index 868dd7591f..1dbd98f187 100644
--- a/bsp/nuvoton/numaker-m2354/board/board.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_common.c
@@ -12,7 +12,7 @@
 
 #include <rtconfig.h>
 #include <rtthread.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 #include "drv_uart.h"
 #include "board.h"
@@ -24,7 +24,7 @@
 /**
  * This function will initial M487 board.
  */
-void rt_hw_board_init(void)
+RT_WEAK void rt_hw_board_init(void)
 {
     /* Init System/modules clock */
     nutool_modclkcfg_init();
@@ -67,6 +67,41 @@ void rt_hw_board_init(void)
 #endif
 }
 
+/**
+ * The time delay function.
+ *
+ * @param microseconds.
+ */
+void rt_hw_us_delay(rt_uint32_t us)
+{
+    rt_uint32_t ticks;
+    rt_uint32_t told, tnow, tcnt = 0;
+    rt_uint32_t reload = SysTick->LOAD;
+
+    ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
+    told = SysTick->VAL;
+    while (1)
+    {
+        tnow = SysTick->VAL;
+        if (tnow != told)
+        {
+            if (tnow < told)
+            {
+                tcnt += told - tnow;
+            }
+            else
+            {
+                tcnt += reload - tnow + told;
+            }
+            told = tnow;
+            if (tcnt >= ticks)
+            {
+                break;
+            }
+        }
+    }
+}
+
 /**
  * This is the timer interrupt service routine.
  *
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_eadc.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_eadc.c
index 99ff8ae46d..3c72536156 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_eadc.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_eadc.c
@@ -11,7 +11,7 @@
 
 #include <rtconfig.h>
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #ifdef BSP_USING_EADC
 
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_ebi.h b/bsp/nuvoton/libraries/m2354/rtt_port/drv_ebi.h
index 9a2f45fbc3..c58fada77d 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_ebi.h
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_ebi.h
@@ -13,7 +13,7 @@
 #define __DRV_EBI_H___
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /**
   * @brief      Initialize EBI for specify Bank
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_ecap.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_ecap.c
index 0e354373af..c9e7c66a8d 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_ecap.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_ecap.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_ECAP)
 #if ((BSP_USING_ECAP0_CHMSK+BSP_USING_ECAP1_CHMSK)!=0)
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #define ECAP_CH0_POS    (0)
 #define ECAP_CH1_POS    (1)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_epwm_capture.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_epwm_capture.c
index 355c395583..c98452d44b 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_epwm_capture.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_epwm_capture.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_EPWM_CAPTURE)
 #if ((BSP_USING_EPWM0_CAPTURE_CHMSK+BSP_USING_EPWM1_CAPTURE_CHMSK)!=0)
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #define EPWM_CH0CH1_POS    (0)
 #define EPWM_CH2CH3_POS    (2)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_fmc.h b/bsp/nuvoton/libraries/m2354/rtt_port/drv_fmc.h
index 9a9ef373c3..d189d1102c 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_fmc.h
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_fmc.h
@@ -14,7 +14,7 @@
 #define __DRV_FMC_H__
 
 #include <rtthread.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 int nu_fmc_read(long offset, uint8_t *buf, size_t size);
 int nu_fmc_write(long offset, const uint8_t *buf, size_t size);
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_gpio.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_gpio.c
index c4461694de..727ef964fa 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_gpio.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_gpio.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 #include <drv_gpio.h>
 #include <stdlib.h>
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2c.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2c.c
index b1e314dbc2..eba23ef245 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2c.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2c.c
@@ -14,7 +14,7 @@
 
 #ifdef BSP_USING_I2C
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define LOG_TAG         "drv.i2c"
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2s.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2s.c
index d76cb27314..be576e61c6 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2s.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2s.c
@@ -220,7 +220,8 @@ static rt_err_t nu_i2s_dai_setup(nu_i2s_t psNuI2s, struct rt_audio_configure *pc
         }
 
         /* Set MCLK and enable MCLK */
-        I2S_EnableMCLK(psNuI2s->i2s_base, __HXT);
+        /* The target MCLK is related to audio codec setting. */
+        I2S_EnableMCLK(psNuI2s->i2s_base, 12000000);
 
         /* Set unmute */
         if (pNuACodecOps->nu_acodec_mixer_control)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2s.h b/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2s.h
index 3fe99f3e3b..9ee00646b8 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2s.h
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_i2s.h
@@ -14,7 +14,7 @@
 #define __DRV_I2S_H__
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_pdma.h>
 
 #if !defined(NU_I2S_DMA_FIFO_SIZE)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_otg.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_otg.c
index 035051f59d..23cd82f738 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_otg.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_otg.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_OTG)
 #include <rtdevice.h>
 #include <rtdbg.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* This delay must be at least 10 us */
 static void _usb_init_delay(void)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_pdma.h b/bsp/nuvoton/libraries/m2354/rtt_port/drv_pdma.h
index 96cbf2c1e0..954582f943 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_pdma.h
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_pdma.h
@@ -15,7 +15,7 @@
 
 #include <rtconfig.h>
 #include <rtthread.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #ifndef NU_PDMA_SGTBL_POOL_SIZE
     #define NU_PDMA_SGTBL_POOL_SIZE (16)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_rtc.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_rtc.c
index 876628848b..44c2ee30dd 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_rtc.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_rtc.c
@@ -14,7 +14,8 @@
 #if defined (BSP_USING_RTC)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include <sys/time.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 
@@ -184,8 +185,8 @@ static rt_err_t nu_rtc_is_date_valid(const time_t *const t)
 
     if (!initialised)
     {
-        t_upper = mktime((struct tm *)&tm_upper);
-        t_lower = mktime((struct tm *)&tm_lower);
+        t_upper = timegm((struct tm *)&tm_upper);
+        t_lower = timegm((struct tm *)&tm_lower);
         initialised = RT_TRUE;
     }
 
@@ -226,13 +227,13 @@ static rt_err_t nu_rtc_control(rt_device_t dev, int cmd, void *args)
         tm_out.tm_hour = hw_time.u32Hour;
         tm_out.tm_min = hw_time.u32Minute;
         tm_out.tm_sec = hw_time.u32Second;
-        *time = mktime(&tm_out);
+        *time = timegm(&tm_out);
         break;
 
     case RT_DEVICE_CTRL_RTC_SET_TIME:
 
         time = (time_t *) args;
-        tm_in = localtime(time);
+        tm_in = gmtime(time);
 
         if (nu_rtc_is_date_valid(time) != RT_EOK)
             return RT_ERROR;
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_scuart.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_scuart.c
index 015fbbed01..3d83615002 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_scuart.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_scuart.c
@@ -14,7 +14,7 @@
 
 #if defined(BSP_USING_SCUART)
 
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <rtdevice.h>
 #include <rthw.h>
 
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_sdh.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_sdh.c
index ef3a45b96a..708f653d36 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_sdh.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_sdh.c
@@ -15,7 +15,7 @@
 #if defined(BSP_USING_SDH)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_pdma.h>
 #include <string.h>
 
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_slcd.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_slcd.c
index d83831bc4a..3a673983a0 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_slcd.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_slcd.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_slcd.h>
 
 /* Private define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_slcd.h b/bsp/nuvoton/libraries/m2354/rtt_port/drv_slcd.h
index b644261c23..46ab04a50f 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_slcd.h
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_slcd.h
@@ -14,7 +14,7 @@
 #define __DRV_SLCD_H__
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 struct nu_slcd_pixel
 {
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_softi2c.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_softi2c.c
index ba1dca803e..a2a7ac7cc5 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_softi2c.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_softi2c.c
@@ -17,7 +17,7 @@
 #include <rtthread.h>
 #include <rthw.h>
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define LOG_TAG          "drv.softi2c"
@@ -65,7 +65,6 @@ struct nu_soft_i2c
 };
 
 /* Private functions ------------------------------------------------------------*/
-static void nu_soft_i2c_udelay(rt_uint32_t us);
 static void nu_soft_i2c_set_sda(void *data, rt_int32_t state);
 static void nu_soft_i2c_set_scl(void *data, rt_int32_t state);
 static rt_int32_t nu_soft_i2c_get_sda(void *data);
@@ -91,48 +90,13 @@ static const struct rt_i2c_bit_ops nu_soft_i2c_bit_ops =
     .set_scl  = nu_soft_i2c_set_scl,
     .get_sda  = nu_soft_i2c_get_sda,
     .get_scl  = nu_soft_i2c_get_scl,
-    .udelay   = nu_soft_i2c_udelay,
+    .udelay   = rt_hw_us_delay,
     .delay_us = 1,
     .timeout  = 100
 };
 
 /* Functions define ------------------------------------------------------------*/
 
-/**
- * The time delay function.
- *
- * @param microseconds.
- */
-static void nu_soft_i2c_udelay(rt_uint32_t us)
-{
-    rt_uint32_t ticks;
-    rt_uint32_t told, tnow, tcnt = 0;
-    rt_uint32_t reload = SysTick->LOAD;
-
-    ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
-    told = SysTick->VAL;
-    while (1)
-    {
-        tnow = SysTick->VAL;
-        if (tnow != told)
-        {
-            if (tnow < told)
-            {
-                tcnt += told - tnow;
-            }
-            else
-            {
-                tcnt += reload - tnow + told;
-            }
-            told = tnow;
-            if (tcnt >= ticks)
-            {
-                break;
-            }
-        }
-    }
-}
-
 /**
  * This function initializes the soft i2c pin.
  *
@@ -163,9 +127,9 @@ static rt_err_t nu_soft_i2c_bus_unlock(const struct nu_soft_i2c_config *cfg)
         while (i++ < 9)
         {
             rt_pin_write(cfg->scl, PIN_HIGH);
-            nu_soft_i2c_udelay(100);
+            rt_hw_us_delay(100);
             rt_pin_write(cfg->scl, PIN_LOW);
-            nu_soft_i2c_udelay(100);
+            rt_hw_us_delay(100);
         }
     }
     if (PIN_LOW == rt_pin_read(cfg->sda))
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_spi.h b/bsp/nuvoton/libraries/m2354/rtt_port/drv_spi.h
index bc949cbb95..d4fbe5358f 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_spi.h
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_spi.h
@@ -16,7 +16,7 @@
 #include <rtconfig.h>
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 
 #if defined(BSP_USING_SPI_PDMA)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_spii2s.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_spii2s.c
index 1e0a8a736c..ba634ea63b 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_spii2s.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_spii2s.c
@@ -282,7 +282,8 @@ static rt_err_t nu_spii2s_dai_setup(nu_i2s_t psNuSPII2s, struct rt_audio_configu
         LOG_I("Open SPII2S.");
 
         /* Set MCLK and enable MCLK */
-        SPII2S_EnableMCLK(spii2s_base, __HXT);
+        /* The target MCLK is related to audio codec setting. */
+        SPII2S_EnableMCLK(spii2s_base, 12000000);
 
         /* Set un-mute */
         if (pNuACodecOps->nu_acodec_mixer_control)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_timer.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_timer.c
index 5ba7a306ac..b4d5472ee8 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_timer.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_timer.c
@@ -15,7 +15,7 @@
 #if (defined(BSP_USING_TIMER) && defined(RT_USING_HWTIMER))
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define NU_TIMER_DEVICE(timer) (nu_timer_t *)(timer)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_timer_capture.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_timer_capture.c
index ecb3a197e9..ee1e189307 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_timer_capture.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_timer_capture.c
@@ -21,7 +21,7 @@
     defined(BSP_USING_TIMER5_CAPTURE)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private typedef --------------------------------------------------------------*/
 typedef struct _timer
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_uart.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_uart.c
index 6d5369c3cf..970d918bd1 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_uart.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_uart.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_uart.h>
 
 #if defined(RT_SERIAL_USING_DMA)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_ui2c.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_ui2c.c
index 2b80f308b5..a2f2648f1a 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_ui2c.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_ui2c.c
@@ -15,7 +15,7 @@
 #if (defined(BSP_USING_UI2C) && defined(RT_USING_I2C))
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define LOG_TAG          "drv.ui2c"
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_usbhost.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_usbhost.c
index c7c2a17b0e..b853ffa1c6 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_usbhost.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_usbhost.c
@@ -15,7 +15,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #include "usb.h"
 #include "usbh_lib.h"
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_uspi.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_uspi.c
index fcb81a38f7..c8efcc81e5 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_uspi.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_uspi.c
@@ -24,7 +24,7 @@
 #include <rtdevice.h>
 #include <rtdef.h>
 
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 
 #if defined(BSP_USING_USPI_PDMA)
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_uuart.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_uuart.c
index 59ac9e7833..04019f3463 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_uuart.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_uuart.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #if defined(RT_SERIAL_USING_DMA)
     #include <drv_pdma.h>
diff --git a/bsp/nuvoton/libraries/m2354/rtt_port/drv_wdt.c b/bsp/nuvoton/libraries/m2354/rtt_port/drv_wdt.c
index a6a358e5f6..13ff9c13b6 100644
--- a/bsp/nuvoton/libraries/m2354/rtt_port/drv_wdt.c
+++ b/bsp/nuvoton/libraries/m2354/rtt_port/drv_wdt.c
@@ -16,7 +16,7 @@
 #include <rthw.h>
 #include <rtdevice.h>
 #include <rtdbg.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /*-------------------------------------------------------------------------------*/
 /* watchdog timer timeout look up table                                          */
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_bpwm_capture.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_bpwm_capture.c
index a28c1c1d5d..e592196c37 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_bpwm_capture.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_bpwm_capture.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_BPWM_CAPTURE)
 #if ((BSP_USING_BPWM0_CAPTURE_CHMSK+BSP_USING_BPWM1_CAPTURE_CHMSK)!=0)
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private typedef --------------------------------------------------------------*/
 typedef struct _bpwm_dev
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_can.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_can.c
index bee0c04219..a667e34979 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_can.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_can.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private Define ---------------------------------------------------------------*/
 #define RX_MSG_ID_INDEX        16
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_clk.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_clk.c
index f61852a0dc..867495804c 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_clk.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_clk.c
@@ -18,7 +18,7 @@
 #include <rtdbg.h>
 #include <stdint.h>
 #include <string.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 
 /* Private define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/numaker-iot-m487/board/board.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_common.c
similarity index 70%
rename from bsp/nuvoton/numaker-iot-m487/board/board.c
rename to bsp/nuvoton/libraries/m480/rtt_port/drv_common.c
index 01d68aca61..8c8cc0abbf 100644
--- a/bsp/nuvoton/numaker-iot-m487/board/board.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_common.c
@@ -12,7 +12,7 @@
 
 #include <rtconfig.h>
 #include <rtthread.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include "drv_uart.h"
 #include "board.h"
 #include "nutool_pincfg.h"
@@ -20,9 +20,9 @@
 
 
 /**
- * This function will initial M487 board.
+ * This function will initial.
  */
-void rt_hw_board_init(void)
+RT_WEAK void rt_hw_board_init(void)
 {
     /* Init System/modules clock */
     nutool_modclkcfg_init();
@@ -67,6 +67,41 @@ void rt_hw_board_init(void)
 #endif
 }
 
+/**
+ * The time delay function.
+ *
+ * @param microseconds.
+ */
+void rt_hw_us_delay(rt_uint32_t us)
+{
+    rt_uint32_t ticks;
+    rt_uint32_t told, tnow, tcnt = 0;
+    rt_uint32_t reload = SysTick->LOAD;
+
+    ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
+    told = SysTick->VAL;
+    while (1)
+    {
+        tnow = SysTick->VAL;
+        if (tnow != told)
+        {
+            if (tnow < told)
+            {
+                tcnt += told - tnow;
+            }
+            else
+            {
+                tcnt += reload - tnow + told;
+            }
+            told = tnow;
+            if (tcnt >= ticks)
+            {
+                break;
+            }
+        }
+    }
+}
+
 /**
  * This is the timer interrupt service routine.
  *
@@ -89,7 +124,7 @@ void rt_hw_cpu_reset(void)
     SYS->IPRST0 |= SYS_IPRST0_CHIPRST_Msk;
 }
 
-int reboot(int argc, char** argv)
+int reboot(int argc, char **argv)
 {
     rt_hw_cpu_reset();
     return 0;
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_eadc.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_eadc.c
index 60fb68e44c..eb14a1dc4e 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_eadc.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_eadc.c
@@ -11,7 +11,7 @@
 
 #include <rtconfig.h>
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #ifdef BSP_USING_EADC
 
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_ebi.h b/bsp/nuvoton/libraries/m480/rtt_port/drv_ebi.h
index 1b5aa5abd4..f639ec2f3f 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_ebi.h
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_ebi.h
@@ -13,7 +13,7 @@
 #define __DRV_EBI_H___
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /**
   * @brief      Initialize EBI for specify Bank
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_ecap.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_ecap.c
index 0e354373af..c9e7c66a8d 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_ecap.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_ecap.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_ECAP)
 #if ((BSP_USING_ECAP0_CHMSK+BSP_USING_ECAP1_CHMSK)!=0)
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #define ECAP_CH0_POS    (0)
 #define ECAP_CH1_POS    (1)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_emac.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_emac.c
index 3729553746..24b5eccc5f 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_emac.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_emac.c
@@ -17,7 +17,7 @@
 #if defined(RT_USING_LWIP)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <netif/ethernetif.h>
 #include <netif/etharp.h>
 #include <lwip/icmp.h>
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_epwm_capture.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_epwm_capture.c
index c95febf8eb..8dcfb92cd7 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_epwm_capture.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_epwm_capture.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_EPWM_CAPTURE)
 #if ((BSP_USING_EPWM0_CAPTURE_CHMSK+BSP_USING_EPWM1_CAPTURE_CHMSK)!=0)
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #define EPWM_CH0CH1_POS    (0)
 #define EPWM_CH2CH3_POS    (2)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_fmc.h b/bsp/nuvoton/libraries/m480/rtt_port/drv_fmc.h
index 9a9ef373c3..d189d1102c 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_fmc.h
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_fmc.h
@@ -14,7 +14,7 @@
 #define __DRV_FMC_H__
 
 #include <rtthread.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 int nu_fmc_read(long offset, uint8_t *buf, size_t size);
 int nu_fmc_write(long offset, const uint8_t *buf, size_t size);
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_gpio.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_gpio.c
index d00677392d..d718c5c06d 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_gpio.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_gpio.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 #include <drv_gpio.h>
 #include <stdlib.h>
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_hsotg.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_hsotg.c
index 17244d5e0a..5859f3244f 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_hsotg.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_hsotg.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_HSOTG)
 #include <rtdevice.h>
 #include <rtdbg.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 
 /* This delay must be at least 10 us */
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2c.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2c.c
index ecf78a5c70..a89bc3156d 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2c.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2c.c
@@ -14,7 +14,7 @@
 
 #ifdef BSP_USING_I2C
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define LOG_TAG         "drv.i2c"
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.c
index d76cb27314..be576e61c6 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.c
@@ -220,7 +220,8 @@ static rt_err_t nu_i2s_dai_setup(nu_i2s_t psNuI2s, struct rt_audio_configure *pc
         }
 
         /* Set MCLK and enable MCLK */
-        I2S_EnableMCLK(psNuI2s->i2s_base, __HXT);
+        /* The target MCLK is related to audio codec setting. */
+        I2S_EnableMCLK(psNuI2s->i2s_base, 12000000);
 
         /* Set unmute */
         if (pNuACodecOps->nu_acodec_mixer_control)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.h b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.h
index 3fe99f3e3b..9ee00646b8 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.h
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.h
@@ -14,7 +14,7 @@
 #define __DRV_I2S_H__
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_pdma.h>
 
 #if !defined(NU_I2S_DMA_FIFO_SIZE)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.h b/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.h
index 35082be311..f8a0169c06 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.h
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.h
@@ -15,7 +15,7 @@
 
 #include <rtconfig.h>
 #include <rtthread.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #ifndef NU_PDMA_SGTBL_POOL_SIZE
     #define NU_PDMA_SGTBL_POOL_SIZE (16)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_rtc.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_rtc.c
index a80ac79627..d642d0116e 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_rtc.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_rtc.c
@@ -15,7 +15,7 @@
 
 #include <rtdevice.h>
 #include <sys/time.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_scuart.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_scuart.c
index f187690f33..708435fef4 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_scuart.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_scuart.c
@@ -14,7 +14,7 @@
 
 #if defined(BSP_USING_SCUART)
 
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <rtdevice.h>
 #include <rthw.h>
 
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_sdh.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_sdh.c
index d02017d0cf..7c92743bd3 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_sdh.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_sdh.c
@@ -15,7 +15,7 @@
 #if defined(BSP_USING_SDH)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_pdma.h>
 #include <string.h>
 
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_softi2c.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_softi2c.c
index 7c8fe84a92..1549bf57f2 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_softi2c.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_softi2c.c
@@ -17,7 +17,7 @@
 #include <rtthread.h>
 #include <rthw.h>
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define LOG_TAG          "drv.softi2c"
@@ -65,7 +65,6 @@ struct nu_soft_i2c
 };
 
 /* Private functions ------------------------------------------------------------*/
-static void nu_soft_i2c_udelay(rt_uint32_t us);
 static void nu_soft_i2c_set_sda(void *data, rt_int32_t state);
 static void nu_soft_i2c_set_scl(void *data, rt_int32_t state);
 static rt_int32_t nu_soft_i2c_get_sda(void *data);
@@ -91,48 +90,13 @@ static const struct rt_i2c_bit_ops nu_soft_i2c_bit_ops =
     .set_scl  = nu_soft_i2c_set_scl,
     .get_sda  = nu_soft_i2c_get_sda,
     .get_scl  = nu_soft_i2c_get_scl,
-    .udelay   = nu_soft_i2c_udelay,
+    .udelay   = rt_hw_us_delay,
     .delay_us = 1,
     .timeout  = 100
 };
 
 /* Functions define ------------------------------------------------------------*/
 
-/**
- * The time delay function.
- *
- * @param microseconds.
- */
-static void nu_soft_i2c_udelay(rt_uint32_t us)
-{
-    rt_uint32_t ticks;
-    rt_uint32_t told, tnow, tcnt = 0;
-    rt_uint32_t reload = SysTick->LOAD;
-
-    ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
-    told = SysTick->VAL;
-    while (1)
-    {
-        tnow = SysTick->VAL;
-        if (tnow != told)
-        {
-            if (tnow < told)
-            {
-                tcnt += told - tnow;
-            }
-            else
-            {
-                tcnt += reload - tnow + told;
-            }
-            told = tnow;
-            if (tcnt >= ticks)
-            {
-                break;
-            }
-        }
-    }
-}
-
 /**
  * This function initializes the soft i2c pin.
  *
@@ -163,9 +127,9 @@ static rt_err_t nu_soft_i2c_bus_unlock(const struct nu_soft_i2c_config *cfg)
         while (i++ < 9)
         {
             rt_pin_write(cfg->scl, PIN_HIGH);
-            nu_soft_i2c_udelay(100);
+            rt_hw_us_delay(100);
             rt_pin_write(cfg->scl, PIN_LOW);
-            nu_soft_i2c_udelay(100);
+            rt_hw_us_delay(100);
         }
     }
     if (PIN_LOW == rt_pin_read(cfg->sda))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.h b/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.h
index 1e7bd0db44..29a7ec1dce 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.h
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.h
@@ -16,7 +16,7 @@
 #include <rtconfig.h>
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 
 #if defined(BSP_USING_SPI_PDMA)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_spii2s.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_spii2s.c
index 801c6262c0..6495af5c03 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_spii2s.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_spii2s.c
@@ -282,7 +282,8 @@ static rt_err_t nu_spii2s_dai_setup(nu_i2s_t psNuSPII2s, struct rt_audio_configu
         LOG_I("Open SPII2S.");
 
         /* Set MCLK and enable MCLK */
-        SPII2S_EnableMCLK(spii2s_base, __HXT);
+        /* The target MCLK is related to audio codec setting. */
+        SPII2S_EnableMCLK(spii2s_base, 12000000);
 
         /* Set un-mute */
         if (pNuACodecOps->nu_acodec_mixer_control)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_timer.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_timer.c
index 331155e258..456cbbc34a 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_timer.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_timer.c
@@ -15,7 +15,7 @@
 #if (defined(BSP_USING_TIMER) && defined(RT_USING_HWTIMER))
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define NU_TIMER_DEVICE(timer) (nu_timer_t *)(timer)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_timer_capture.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_timer_capture.c
index 4f9543664f..5f6df13e8a 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_timer_capture.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_timer_capture.c
@@ -19,7 +19,7 @@
     defined(BSP_USING_TIMER3_CAPTURE)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private typedef --------------------------------------------------------------*/
 typedef struct _timer
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_uart.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_uart.c
index d694ab7d8c..3167bdc9d3 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_uart.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_uart.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_uart.h>
 
 #if defined(RT_SERIAL_USING_DMA)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_ui2c.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_ui2c.c
index 9130dc878b..2c46f637a4 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_ui2c.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_ui2c.c
@@ -15,7 +15,7 @@
 #if (defined(BSP_USING_UI2C) && defined(RT_USING_I2C))
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define LOG_TAG          "drv.ui2c"
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_usbhost.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_usbhost.c
index be19dac9e5..65af8ec18c 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_usbhost.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_usbhost.c
@@ -17,7 +17,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #include "usb.h"
 #include "usbh_lib.h"
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_uspi.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_uspi.c
index 656750144e..9189ff5f03 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_uspi.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_uspi.c
@@ -24,7 +24,7 @@
 #include <rtdevice.h>
 #include <rtdef.h>
 
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 
 #if defined(BSP_USING_USPI_PDMA)
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_uuart.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_uuart.c
index 6cd29f79fe..1cd9e5a717 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_uuart.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_uuart.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #if defined(RT_SERIAL_USING_DMA)
     #include <drv_pdma.h>
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_wdt.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_wdt.c
index 15521aace9..ffe5f98a1a 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_wdt.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_wdt.c
@@ -16,7 +16,7 @@
 #include <rthw.h>
 #include <rtdevice.h>
 #include <rtdbg.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /*-------------------------------------------------------------------------------*/
 /* watchdog timer timeout look up table                                          */
diff --git a/bsp/nuvoton/libraries/nu_packages/AudioCodec/acodec_nau88l25.c b/bsp/nuvoton/libraries/nu_packages/AudioCodec/acodec_nau88l25.c
index 65b2f4afba..0bd7852e02 100644
--- a/bsp/nuvoton/libraries/nu_packages/AudioCodec/acodec_nau88l25.c
+++ b/bsp/nuvoton/libraries/nu_packages/AudioCodec/acodec_nau88l25.c
@@ -88,10 +88,10 @@ static int I2C_WriteNAU88L25(uint16_t u16addr, uint16_t u16data)
 static int I2C_ReadNAU88L25(uint16_t u16addr, uint16_t *pu16data)
 {
     struct rt_i2c_msg msgs[2];
-    uint16_t u16data = 0;
     char au8TxData[2];
 
     RT_ASSERT(g_I2cBusDev != NULL);
+    RT_ASSERT(pu16data != NULL);
 
     au8TxData[0] = (uint8_t)((u16addr >> 8) & 0x00FF);   //addr [15:8]
     au8TxData[1] = (uint8_t)(u16addr & 0x00FF);          //addr [ 7:0]
@@ -103,8 +103,8 @@ static int I2C_ReadNAU88L25(uint16_t u16addr, uint16_t *pu16data)
 
     msgs[1].addr  = DEF_NAU88L25_ADDR;        /* Slave address */
     msgs[1].flags = RT_I2C_RD;                /* Read flag */
-    msgs[1].buf   = (rt_uint8_t *)&u16data;   /* Read data pointer */
-    msgs[1].len   = sizeof(u16data);          /* Number of bytes read */
+    msgs[1].buf   = (rt_uint8_t *)pu16data;   /* Read data pointer */
+    msgs[1].len   = sizeof(uint16_t);         /* Number of bytes read */
 
     if (rt_i2c_transfer(g_I2cBusDev, &msgs[0], 2) != 2)
     {
diff --git a/bsp/nuvoton/libraries/nu_packages/AudioCodec/audio_test.c b/bsp/nuvoton/libraries/nu_packages/AudioCodec/audio_test.c
index d82641b0c7..b36db998a8 100644
--- a/bsp/nuvoton/libraries/nu_packages/AudioCodec/audio_test.c
+++ b/bsp/nuvoton/libraries/nu_packages/AudioCodec/audio_test.c
@@ -26,6 +26,8 @@
 static int audio_test(int argc, char **argv)
 {
 #define DEF_MAX_ARGV_NUM 8
+#define DEF_MAX_TEST_SECOND 5
+
     int smplrate[] = {8000, 16000, 44100, 48000};
     int smplbit[] = {16};
     int chnum[] = {1, 2};
@@ -54,9 +56,9 @@ static int audio_test(int argc, char **argv)
                     info.samplebits = smplbit[j];
                     info.channels = chnum[k];
                     wavrecorder_start(&info);
-                    rt_thread_mdelay(10000);
+                    rt_thread_mdelay(DEF_MAX_TEST_SECOND * 1000);
                     wavrecorder_stop();
-                    rt_thread_mdelay(1000);
+                    rt_thread_mdelay(DEF_MAX_TEST_SECOND * 1000);
                 }
                 else
                 {
@@ -68,7 +70,7 @@ static int audio_test(int argc, char **argv)
 
                     rt_kprintf("Replay file at %s\n", strbuf);
                     wavplayer_play(strbuf);
-                    rt_thread_mdelay(10000);
+                    rt_thread_mdelay(DEF_MAX_TEST_SECOND * 1000);
                     wavplayer_stop();
                 }
             } // k
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/Kconfig b/bsp/nuvoton/libraries/nuc980/rtt_port/Kconfig
index d2c34d6461..e7293b535d 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/Kconfig
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/Kconfig
@@ -30,21 +30,6 @@ config SOC_SERIES_NUC980
         select RT_USING_PIN
         default y
 
-    menuconfig BSP_USING_CLK
-        bool "Enable Clock Controller(CLK)"
-        select RT_USING_PM
-        select BSP_USING_TMR
-        default y
-        help
-            Choose this option if you need CLK/PM function.
-            Notice: Enable the option will hold timer3 resource
-
-        if BSP_USING_CLK
-            config NU_CLK_INVOKE_WKTMR
-            bool "Enable SPD1 and DPD mode wakeup timer. (About 6.6 Secs)"
-            default y
-        endif
-
     menuconfig BSP_USING_EMAC
         bool "Enable Ethernet MAC Controller(EMAC)"
         select RT_USING_LWIP
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_adc.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_adc.c
index a35fe81c8b..721bd5d6c1 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_adc.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_adc.c
@@ -14,7 +14,7 @@
 #if defined(BSP_USING_ADC)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_sys.h>
 
 /* Private define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_can.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_can.c
index 66d3a8f870..3b48867bb2 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_can.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_can.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_sys.h>
 
 /* Private Define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_ebi.h b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_ebi.h
index c42a85e226..a5427aa278 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_ebi.h
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_ebi.h
@@ -13,7 +13,7 @@
 #define __DRV_EBI_H___
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #define MAX_BANK    EBI_BANK2
 
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_emac.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_emac.c
index be0451ec5e..b74189cb84 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_emac.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_emac.c
@@ -17,7 +17,7 @@
 #if defined(RT_USING_LWIP)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <netif/ethernetif.h>
 #include <netif/etharp.h>
 #include <lwip/icmp.h>
@@ -117,7 +117,7 @@ static struct nu_emac nu_emac_arr[] =
         .name           =  "e1",
         .memmgr.psEmac  = (EMAC_T *)EMC1_BA,
         .irqn_tx        =  IRQ_EMC1_TX,
-        .irqn_rx        =  IRQ_EMC1_RX
+        .irqn_rx        =  IRQ_EMC1_RX,
         .rstidx         =  EMAC1RST,
         .clkidx         =  EMAC1CKEN,
     },
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_etimer.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_etimer.c
index c009af16c7..cf7ff232cd 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_etimer.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_etimer.c
@@ -15,7 +15,7 @@
 #if defined(BSP_USING_TIMER) && defined(RT_USING_HWTIMER)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_sys.h>
 
 /* Private define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_etimer_capture.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_etimer_capture.c
index 0e2ae9384e..761ef73847 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_etimer_capture.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_etimer_capture.c
@@ -15,7 +15,7 @@
 #if defined(BSP_USING_TIMER_CAPTURE)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_sys.h>
 
 /* Private define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_gpio.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_gpio.c
index 71d8b6f012..ec2b2ac94b 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_gpio.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_gpio.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 #include <drv_gpio.h>
 #include <stdlib.h>
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2c.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2c.c
index b260b7fc18..30bc34ff66 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2c.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2c.c
@@ -15,7 +15,7 @@
 #if defined( BSP_USING_I2C)
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_i2c.h>
 #include <drv_sys.h>
 
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2s.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2s.c
index 4c4a01599f..b8646d46a8 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2s.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2s.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <drv_i2s.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 /* Private define ---------------------------------------------------------------*/
 #define DBG_ENABLE
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2s.h b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2s.h
index 8f041e4271..2b4c877acb 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2s.h
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_i2s.h
@@ -15,7 +15,7 @@
 
 #include <rtthread.h>
 #include <drv_sys.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #if !defined(NU_I2S_DMA_FIFO_SIZE)
     #define NU_I2S_DMA_FIFO_SIZE (2048)
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_pdma.h b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_pdma.h
index 66ac50df43..1267dcb9fa 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_pdma.h
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_pdma.h
@@ -15,7 +15,7 @@
 
 #include <rtconfig.h>
 #include <rtthread.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <board.h>
 
 #define NU_PDMA_CAP_NONE    (0 << 0)
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_rtc.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_rtc.c
index 49418316d1..e3866e7d22 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_rtc.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_rtc.c
@@ -15,7 +15,7 @@
 
 #include <rtdevice.h>
 #include <sys/time.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_sys.h>
 
 /* Private define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_scuart.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_scuart.c
index 3b08c224e2..6867eb8827 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_scuart.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_scuart.c
@@ -12,12 +12,9 @@
 
 #include <rtconfig.h>
 
-#define BSP_USING_SCUART
-#define BSP_USING_SCUART0
-
 #if defined(BSP_USING_SCUART)
 
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <rtdevice.h>
 #include <rthw.h>
 #include <drv_sys.h>
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_sdh.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_sdh.c
index 85f4878518..6990ce215c 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_sdh.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_sdh.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <string.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_pdma.h>
 #include <drv_sys.h>
 
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_softi2c.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_softi2c.c
index d2e08fbb3b..f638c51ff6 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_softi2c.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_softi2c.c
@@ -17,7 +17,7 @@
 #include <rtthread.h>
 #include <rthw.h>
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include "drv_sys.h"
 
 /* Private define ---------------------------------------------------------------*/
@@ -106,7 +106,7 @@ static const struct rt_i2c_bit_ops nu_soft_i2c_bit_ops =
  */
 static void nu_soft_i2c_udelay(rt_uint32_t us)
 {
-    nu_systick_udelay(us);
+    rt_hw_us_delay(us);
 }
 
 /**
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_spi.h b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_spi.h
index 30d574528c..32efa3bb0c 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_spi.h
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_spi.h
@@ -16,7 +16,7 @@
 #include <rtconfig.h>
 
 #include <rtdevice.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <nu_bitutil.h>
 
 #if defined(BSP_USING_SPI_PDMA)
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_sys.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_sys.c
index 97b4fff76c..c19d2dd34a 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_sys.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_sys.c
@@ -348,4 +348,22 @@ int nu_clocks(int argc, char **argv)
 MSH_CMD_EXPORT(nu_clocks, Get all system clocks);
 #endif
 
+#ifdef RT_USING_INTERRUPT_INFO
+int list_interrupt(int argc, char **argv)
+{
+    int i;
+
+    for (i = 1; i <= SYS_MAX_INT_SOURCE; i++)
+    {
+        if (irq_desc[i].handler != rt_hw_interrupt_dummy_handler)
+        {
+            rt_kprintf("[%d] %s: %d\n", i, irq_desc[i].name, irq_desc[i].counter);
+        }
+    }
+
+    return 0;
+}
+MSH_CMD_EXPORT(list_interrupt, list registered interrupts);
+#endif
+
 #endif
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_systick.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_systick.c
index 0060ec37a9..f6b0f68ffb 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_systick.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_systick.c
@@ -49,13 +49,13 @@ void rt_hw_systick_init(void)
     ETIMER_Start(USE_TIMER);
 } /* rt_hw_systick_init */
 
-void nu_systick_udelay(uint32_t delay_us)
+void rt_hw_us_delay(rt_uint32_t us)
 {
     rt_uint32_t ticks;
     rt_uint32_t told, tnow, tcnt = 0;
     rt_uint32_t cmp = ETIMER_GetCompareData(USE_TIMER);
 
-    ticks = delay_us * cmp / (1000000 / RT_TICK_PER_SECOND);
+    ticks = us * cmp / (1000000 / RT_TICK_PER_SECOND);
     told = ETIMER_GetCounter(USE_TIMER);
     while (1)
     {
@@ -82,5 +82,4 @@ void nu_systick_udelay(uint32_t delay_us)
             }
         }
     }
-
-} /* nu_systick_udelay */
+} /* rt_hw_us_delay */
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_uart.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_uart.c
index c4b7f3a393..fbafecee55 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_uart.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_uart.c
@@ -16,7 +16,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_uart.h>
 #include <drv_sys.h>
 
@@ -25,6 +25,7 @@
 #endif
 
 /* Private define ---------------------------------------------------------------*/
+
 enum
 {
     UART_START = -1,
@@ -70,6 +71,7 @@ struct nu_uart
     IRQn_Type irqn;
     E_SYS_IPRST rstidx;
     E_SYS_IPCLK clkidx;
+
 #if defined(RT_SERIAL_USING_DMA)
     uint32_t dma_flag;
     int16_t pdma_perp_tx;
@@ -81,7 +83,6 @@ struct nu_uart
     int32_t rxdma_trigger_len;
 
     nu_pdma_desc_t pdma_rx_desc;
-
 #endif
 
 };
@@ -395,6 +396,34 @@ static void nu_uart_isr(int vector, void *param)
     uart_base->FIFOSTS = u32FIFOSts;
 }
 
+/**
+ * Set RS-485 AUD mode
+ */
+void nu_uart_set_rs485aud(struct rt_serial_device *serial, rt_bool_t bRTSActiveLowLevel)
+{
+    UART_T *uart_base;
+    RT_ASSERT(serial != RT_NULL);
+
+    /* Get base address of uart register */
+    uart_base = ((nu_uart_t)serial)->uart_base;
+
+    /* Set RTS as RS-485 phy direction controlling ping. */
+    UART_SelectRS485Mode(uart_base, UART_ALTCTL_RS485AUD_Msk, 0);
+
+    if (bRTSActiveLowLevel)
+    {
+        /* Set direction pin as active-low. */
+        uart_base->MODEM |= UART_MODEM_RTSACTLV_Msk;
+    }
+    else
+    {
+        /* Set direction pin as active-high. */
+        uart_base->MODEM &= ~UART_MODEM_RTSACTLV_Msk;
+    }
+
+    rt_kprintf("Set %s to RS-485 AUD function mode. ActiveLowLevel-%s\n", ((nu_uart_t)serial)->name, bRTSActiveLowLevel ? "YES" : "NO");
+}
+
 /**
  * Configure uart port
  */
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_uart.h b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_uart.h
index 2596c9be0a..cda8e7fb85 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_uart.h
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_uart.h
@@ -16,5 +16,6 @@
 #include <rtdevice.h>
 
 rt_err_t rt_hw_uart_init(void);
+void nu_uart_set_rs485aud(struct rt_serial_device *serial, rt_bool_t bRTSActiveLowLevel);
 
 #endif /* __DRV_UART_H__ */
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbd.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbd.c
index 2065ba35a1..ae563d1a1e 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbd.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbd.c
@@ -829,7 +829,7 @@ static rt_err_t _init(rt_device_t device)
 
     nu_sys_ip_reset(nu_usbd.rstidx);
 
-    nu_systick_udelay(1000);
+    rt_hw_us_delay(1000);
 
     /* USBD Open */
     USBD_ENABLE_USB();
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbhost.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbhost.c
index 0fbb6d24c8..cd6f837c88 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbhost.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbhost.c
@@ -15,7 +15,7 @@
 
 #include <rtdevice.h>
 #include <rthw.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 
 #include "usb.h"
 #include "usbh_lib.h"
diff --git a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_wdt.c b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_wdt.c
index 5564c5885d..d5b696c59f 100644
--- a/bsp/nuvoton/libraries/nuc980/rtt_port/drv_wdt.c
+++ b/bsp/nuvoton/libraries/nuc980/rtt_port/drv_wdt.c
@@ -16,7 +16,7 @@
 #include <rthw.h>
 #include <rtdevice.h>
 #include <rtdbg.h>
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include <drv_sys.h>
 
 /* Private define ---------------------------------------------------------------*/
diff --git a/bsp/nuvoton/nk-980iot/board/board.h b/bsp/nuvoton/nk-980iot/board/board.h
index 38762245cd..d361487629 100644
--- a/bsp/nuvoton/nk-980iot/board/board.h
+++ b/bsp/nuvoton/nk-980iot/board/board.h
@@ -13,7 +13,7 @@
 #ifndef __BOARD_H__
 #define __BOARD_H__
 
-#include <NuMicro.h>
+#include "NuMicro.h"
 #include "drv_sys.h"
 
 #if defined(__CC_ARM)
diff --git a/bsp/nuvoton/nk-rtu980/.config b/bsp/nuvoton/nk-rtu980/.config
new file mode 100644
index 0000000000..01cafd396d
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/.config
@@ -0,0 +1,828 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# RT-Thread Configuration
+#
+
+#
+# RT-Thread Kernel
+#
+CONFIG_RT_NAME_MAX=16
+# CONFIG_RT_USING_ARCH_DATA_TYPE is not set
+# CONFIG_RT_USING_SMP is not set
+CONFIG_RT_ALIGN_SIZE=4
+# CONFIG_RT_THREAD_PRIORITY_8 is not set
+CONFIG_RT_THREAD_PRIORITY_32=y
+# CONFIG_RT_THREAD_PRIORITY_256 is not set
+CONFIG_RT_THREAD_PRIORITY_MAX=32
+CONFIG_RT_TICK_PER_SECOND=1000
+CONFIG_RT_USING_OVERFLOW_CHECK=y
+CONFIG_RT_USING_HOOK=y
+CONFIG_RT_USING_IDLE_HOOK=y
+CONFIG_RT_IDLE_HOOK_LIST_SIZE=4
+CONFIG_IDLE_THREAD_STACK_SIZE=2048
+# CONFIG_RT_USING_TIMER_SOFT is not set
+CONFIG_RT_DEBUG=y
+CONFIG_RT_DEBUG_COLOR=y
+# CONFIG_RT_DEBUG_INIT_CONFIG is not set
+# CONFIG_RT_DEBUG_THREAD_CONFIG is not set
+# CONFIG_RT_DEBUG_SCHEDULER_CONFIG is not set
+# CONFIG_RT_DEBUG_IPC_CONFIG is not set
+# CONFIG_RT_DEBUG_TIMER_CONFIG is not set
+# CONFIG_RT_DEBUG_IRQ_CONFIG is not set
+# CONFIG_RT_DEBUG_MEM_CONFIG is not set
+# CONFIG_RT_DEBUG_SLAB_CONFIG is not set
+# CONFIG_RT_DEBUG_MEMHEAP_CONFIG is not set
+# CONFIG_RT_DEBUG_MODULE_CONFIG is not set
+
+#
+# Inter-Thread communication
+#
+CONFIG_RT_USING_SEMAPHORE=y
+CONFIG_RT_USING_MUTEX=y
+CONFIG_RT_USING_EVENT=y
+CONFIG_RT_USING_MAILBOX=y
+CONFIG_RT_USING_MESSAGEQUEUE=y
+CONFIG_RT_USING_SIGNALS=y
+
+#
+# Memory Management
+#
+CONFIG_RT_USING_MEMPOOL=y
+CONFIG_RT_USING_MEMHEAP=y
+# CONFIG_RT_USING_NOHEAP is not set
+CONFIG_RT_USING_SMALL_MEM=y
+# CONFIG_RT_USING_SLAB is not set
+# CONFIG_RT_USING_MEMHEAP_AS_HEAP is not set
+# CONFIG_RT_USING_USERHEAP is not set
+CONFIG_RT_USING_MEMTRACE=y
+CONFIG_RT_USING_HEAP=y
+
+#
+# Kernel Device Object
+#
+CONFIG_RT_USING_DEVICE=y
+# CONFIG_RT_USING_DEVICE_OPS is not set
+# CONFIG_RT_USING_INTERRUPT_INFO is not set
+CONFIG_RT_USING_CONSOLE=y
+CONFIG_RT_CONSOLEBUF_SIZE=256
+CONFIG_RT_CONSOLE_DEVICE_NAME="uart0"
+CONFIG_RT_VER_NUM=0x40003
+CONFIG_ARCH_ARM=y
+# CONFIG_RT_USING_CPU_FFS is not set
+CONFIG_ARCH_ARM_ARM9=y
+# CONFIG_ARCH_CPU_STACK_GROWS_UPWARD is not set
+
+#
+# RT-Thread Components
+#
+CONFIG_RT_USING_COMPONENTS_INIT=y
+CONFIG_RT_USING_USER_MAIN=y
+CONFIG_RT_MAIN_THREAD_STACK_SIZE=2048
+CONFIG_RT_MAIN_THREAD_PRIORITY=10
+
+#
+# C++ features
+#
+# CONFIG_RT_USING_CPLUSPLUS is not set
+
+#
+# Command shell
+#
+CONFIG_RT_USING_FINSH=y
+CONFIG_FINSH_THREAD_NAME="tshell"
+CONFIG_FINSH_USING_HISTORY=y
+CONFIG_FINSH_HISTORY_LINES=5
+CONFIG_FINSH_USING_SYMTAB=y
+CONFIG_FINSH_USING_DESCRIPTION=y
+# CONFIG_FINSH_ECHO_DISABLE_DEFAULT is not set
+CONFIG_FINSH_THREAD_PRIORITY=20
+CONFIG_FINSH_THREAD_STACK_SIZE=4096
+CONFIG_FINSH_CMD_SIZE=80
+# CONFIG_FINSH_USING_AUTH is not set
+CONFIG_FINSH_USING_MSH=y
+CONFIG_FINSH_USING_MSH_DEFAULT=y
+# CONFIG_FINSH_USING_MSH_ONLY is not set
+CONFIG_FINSH_ARG_MAX=10
+
+#
+# Device virtual file system
+#
+CONFIG_RT_USING_DFS=y
+CONFIG_DFS_USING_WORKDIR=y
+CONFIG_DFS_FILESYSTEMS_MAX=16
+CONFIG_DFS_FILESYSTEM_TYPES_MAX=16
+CONFIG_DFS_FD_MAX=64
+CONFIG_RT_USING_DFS_MNTTABLE=y
+CONFIG_RT_USING_DFS_ELMFAT=y
+
+#
+# elm-chan's FatFs, Generic FAT Filesystem Module
+#
+CONFIG_RT_DFS_ELM_CODE_PAGE=437
+CONFIG_RT_DFS_ELM_WORD_ACCESS=y
+# CONFIG_RT_DFS_ELM_USE_LFN_0 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_1 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_2 is not set
+CONFIG_RT_DFS_ELM_USE_LFN_3=y
+CONFIG_RT_DFS_ELM_USE_LFN=3
+CONFIG_RT_DFS_ELM_LFN_UNICODE_0=y
+# CONFIG_RT_DFS_ELM_LFN_UNICODE_1 is not set
+# CONFIG_RT_DFS_ELM_LFN_UNICODE_2 is not set
+# CONFIG_RT_DFS_ELM_LFN_UNICODE_3 is not set
+CONFIG_RT_DFS_ELM_LFN_UNICODE=0
+CONFIG_RT_DFS_ELM_MAX_LFN=255
+CONFIG_RT_DFS_ELM_DRIVES=8
+CONFIG_RT_DFS_ELM_MAX_SECTOR_SIZE=4096
+# CONFIG_RT_DFS_ELM_USE_ERASE is not set
+CONFIG_RT_DFS_ELM_REENTRANT=y
+CONFIG_RT_USING_DFS_DEVFS=y
+# CONFIG_RT_USING_DFS_ROMFS is not set
+# CONFIG_RT_USING_DFS_RAMFS is not set
+# CONFIG_RT_USING_DFS_UFFS is not set
+# CONFIG_RT_USING_DFS_JFFS2 is not set
+# CONFIG_RT_USING_DFS_NFS is not set
+
+#
+# Device Drivers
+#
+CONFIG_RT_USING_DEVICE_IPC=y
+CONFIG_RT_PIPE_BUFSZ=512
+CONFIG_RT_USING_SYSTEM_WORKQUEUE=y
+CONFIG_RT_SYSTEM_WORKQUEUE_STACKSIZE=2048
+CONFIG_RT_SYSTEM_WORKQUEUE_PRIORITY=23
+CONFIG_RT_USING_SERIAL=y
+CONFIG_RT_SERIAL_USING_DMA=y
+CONFIG_RT_SERIAL_RB_BUFSZ=2048
+CONFIG_RT_USING_CAN=y
+CONFIG_RT_CAN_USING_HDR=y
+CONFIG_RT_USING_HWTIMER=y
+CONFIG_RT_USING_CPUTIME=y
+CONFIG_RT_USING_I2C=y
+# CONFIG_RT_I2C_DEBUG is not set
+CONFIG_RT_USING_I2C_BITOPS=y
+# CONFIG_RT_I2C_BITOPS_DEBUG is not set
+# CONFIG_RT_USING_PHY is not set
+CONFIG_RT_USING_PIN=y
+CONFIG_RT_USING_ADC=y
+# CONFIG_RT_USING_DAC is not set
+# CONFIG_RT_USING_PWM is not set
+# CONFIG_RT_USING_MTD_NOR is not set
+# CONFIG_RT_USING_MTD_NAND is not set
+# CONFIG_RT_USING_PM is not set
+# CONFIG_RT_USING_RTC is not set
+# CONFIG_RT_USING_SDIO is not set
+CONFIG_RT_USING_SPI=y
+CONFIG_RT_USING_QSPI=y
+# CONFIG_RT_USING_SPI_MSD is not set
+CONFIG_RT_USING_SFUD=y
+CONFIG_RT_SFUD_USING_SFDP=y
+CONFIG_RT_SFUD_USING_FLASH_INFO_TABLE=y
+CONFIG_RT_SFUD_USING_QSPI=y
+CONFIG_RT_SFUD_SPI_MAX_HZ=50000000
+CONFIG_RT_DEBUG_SFUD=y
+# CONFIG_RT_USING_ENC28J60 is not set
+# CONFIG_RT_USING_SPI_WIFI is not set
+CONFIG_RT_USING_WDT=y
+# CONFIG_RT_USING_AUDIO is not set
+# CONFIG_RT_USING_SENSOR is not set
+# CONFIG_RT_USING_TOUCH is not set
+CONFIG_RT_USING_HWCRYPTO=y
+CONFIG_RT_HWCRYPTO_DEFAULT_NAME="hwcryto"
+CONFIG_RT_HWCRYPTO_IV_MAX_SIZE=16
+CONFIG_RT_HWCRYPTO_KEYBIT_MAX_SIZE=256
+# CONFIG_RT_HWCRYPTO_USING_GCM is not set
+CONFIG_RT_HWCRYPTO_USING_AES=y
+CONFIG_RT_HWCRYPTO_USING_AES_ECB=y
+CONFIG_RT_HWCRYPTO_USING_AES_CBC=y
+CONFIG_RT_HWCRYPTO_USING_AES_CFB=y
+CONFIG_RT_HWCRYPTO_USING_AES_CTR=y
+CONFIG_RT_HWCRYPTO_USING_AES_OFB=y
+# CONFIG_RT_HWCRYPTO_USING_DES is not set
+# CONFIG_RT_HWCRYPTO_USING_3DES is not set
+# CONFIG_RT_HWCRYPTO_USING_RC4 is not set
+# CONFIG_RT_HWCRYPTO_USING_MD5 is not set
+CONFIG_RT_HWCRYPTO_USING_SHA1=y
+CONFIG_RT_HWCRYPTO_USING_SHA2=y
+CONFIG_RT_HWCRYPTO_USING_SHA2_224=y
+CONFIG_RT_HWCRYPTO_USING_SHA2_256=y
+CONFIG_RT_HWCRYPTO_USING_SHA2_384=y
+CONFIG_RT_HWCRYPTO_USING_SHA2_512=y
+CONFIG_RT_HWCRYPTO_USING_RNG=y
+# CONFIG_RT_HWCRYPTO_USING_CRC is not set
+# CONFIG_RT_HWCRYPTO_USING_BIGNUM is not set
+# CONFIG_RT_USING_PULSE_ENCODER is not set
+# CONFIG_RT_USING_INPUT_CAPTURE is not set
+# CONFIG_RT_USING_WIFI is not set
+
+#
+# Using USB
+#
+CONFIG_RT_USING_USB_HOST=y
+CONFIG_RT_USBH_MSTORAGE=y
+CONFIG_UDISK_MOUNTPOINT="/mnt/udisk"
+CONFIG_RT_USING_USB_DEVICE=y
+CONFIG_RT_USBD_THREAD_STACK_SZ=4096
+CONFIG_USB_VENDOR_ID=0x0FFE
+CONFIG_USB_PRODUCT_ID=0x0001
+CONFIG_RT_USB_DEVICE_COMPOSITE=y
+CONFIG_RT_USB_DEVICE_CDC=y
+CONFIG_RT_USB_DEVICE_NONE=y
+CONFIG_RT_USB_DEVICE_MSTORAGE=y
+# CONFIG_RT_USB_DEVICE_HID is not set
+# CONFIG_RT_USB_DEVICE_RNDIS is not set
+# CONFIG_RT_USB_DEVICE_ECM is not set
+# CONFIG_RT_USB_DEVICE_WINUSB is not set
+# CONFIG_RT_USB_DEVICE_AUDIO is not set
+CONFIG_RT_VCOM_TASK_STK_SIZE=2048
+CONFIG_RT_CDC_RX_BUFSIZE=128
+# CONFIG_RT_VCOM_TX_USE_DMA is not set
+CONFIG_RT_VCOM_SERNO="32021919830108"
+CONFIG_RT_VCOM_SER_LEN=14
+CONFIG_RT_VCOM_TX_TIMEOUT=1000
+CONFIG_RT_USB_MSTORAGE_DISK_NAME="ramdisk1"
+
+#
+# POSIX layer and C standard library
+#
+CONFIG_RT_USING_LIBC=y
+# CONFIG_RT_USING_PTHREADS is not set
+CONFIG_RT_USING_POSIX=y
+# CONFIG_RT_USING_POSIX_MMAP is not set
+# CONFIG_RT_USING_POSIX_TERMIOS is not set
+# CONFIG_RT_USING_POSIX_GETLINE is not set
+# CONFIG_RT_USING_POSIX_AIO is not set
+# CONFIG_RT_USING_MODULE is not set
+
+#
+# Network
+#
+
+#
+# Socket abstraction layer
+#
+CONFIG_RT_USING_SAL=y
+CONFIG_SAL_INTERNET_CHECK=y
+
+#
+# protocol stack implement
+#
+CONFIG_SAL_USING_LWIP=y
+CONFIG_SAL_USING_POSIX=y
+
+#
+# Network interface device
+#
+CONFIG_RT_USING_NETDEV=y
+CONFIG_NETDEV_USING_IFCONFIG=y
+CONFIG_NETDEV_USING_PING=y
+CONFIG_NETDEV_USING_NETSTAT=y
+CONFIG_NETDEV_USING_AUTO_DEFAULT=y
+# CONFIG_NETDEV_USING_IPV6 is not set
+CONFIG_NETDEV_IPV4=1
+CONFIG_NETDEV_IPV6=0
+# CONFIG_NETDEV_IPV6_SCOPES is not set
+
+#
+# light weight TCP/IP stack
+#
+CONFIG_RT_USING_LWIP=y
+# CONFIG_RT_USING_LWIP141 is not set
+CONFIG_RT_USING_LWIP202=y
+# CONFIG_RT_USING_LWIP212 is not set
+# CONFIG_RT_USING_LWIP_IPV6 is not set
+CONFIG_RT_LWIP_MEM_ALIGNMENT=4
+CONFIG_RT_LWIP_IGMP=y
+CONFIG_RT_LWIP_ICMP=y
+# CONFIG_RT_LWIP_SNMP is not set
+CONFIG_RT_LWIP_DNS=y
+CONFIG_RT_LWIP_DHCP=y
+CONFIG_IP_SOF_BROADCAST=1
+CONFIG_IP_SOF_BROADCAST_RECV=1
+
+#
+# Static IPv4 Address
+#
+CONFIG_RT_LWIP_IPADDR="192.168.1.30"
+CONFIG_RT_LWIP_GWADDR="192.168.1.1"
+CONFIG_RT_LWIP_MSKADDR="255.255.255.0"
+CONFIG_RT_LWIP_UDP=y
+CONFIG_RT_LWIP_TCP=y
+CONFIG_RT_LWIP_RAW=y
+# CONFIG_RT_LWIP_PPP is not set
+CONFIG_RT_MEMP_NUM_NETCONN=32
+CONFIG_RT_LWIP_PBUF_NUM=256
+CONFIG_RT_LWIP_RAW_PCB_NUM=32
+CONFIG_RT_LWIP_UDP_PCB_NUM=32
+CONFIG_RT_LWIP_TCP_PCB_NUM=32
+CONFIG_RT_LWIP_TCP_SEG_NUM=256
+CONFIG_RT_LWIP_TCP_SND_BUF=32768
+CONFIG_RT_LWIP_TCP_WND=10240
+CONFIG_RT_LWIP_TCPTHREAD_PRIORITY=10
+CONFIG_RT_LWIP_TCPTHREAD_MBOX_SIZE=32
+CONFIG_RT_LWIP_TCPTHREAD_STACKSIZE=4096
+# CONFIG_LWIP_NO_RX_THREAD is not set
+# CONFIG_LWIP_NO_TX_THREAD is not set
+CONFIG_RT_LWIP_ETHTHREAD_PRIORITY=12
+CONFIG_RT_LWIP_ETHTHREAD_STACKSIZE=1024
+CONFIG_RT_LWIP_ETHTHREAD_MBOX_SIZE=32
+# CONFIG_RT_LWIP_REASSEMBLY_FRAG is not set
+CONFIG_LWIP_NETIF_STATUS_CALLBACK=1
+CONFIG_LWIP_NETIF_LINK_CALLBACK=1
+CONFIG_SO_REUSE=1
+CONFIG_LWIP_SO_RCVTIMEO=1
+CONFIG_LWIP_SO_SNDTIMEO=1
+CONFIG_LWIP_SO_RCVBUF=1
+CONFIG_LWIP_SO_LINGER=0
+CONFIG_RT_LWIP_NETIF_LOOPBACK=y
+CONFIG_LWIP_NETIF_LOOPBACK=1
+CONFIG_RT_LWIP_STATS=y
+# CONFIG_RT_LWIP_USING_HW_CHECKSUM is not set
+CONFIG_RT_LWIP_USING_PING=y
+# CONFIG_RT_LWIP_DEBUG is not set
+
+#
+# AT commands
+#
+# CONFIG_RT_USING_AT is not set
+# CONFIG_LWIP_USING_DHCPD is not set
+
+#
+# VBUS(Virtual Software BUS)
+#
+# CONFIG_RT_USING_VBUS is not set
+
+#
+# Utilities
+#
+# CONFIG_RT_USING_RYM is not set
+# CONFIG_RT_USING_ULOG is not set
+CONFIG_RT_USING_UTEST=y
+CONFIG_UTEST_THR_STACK_SIZE=4096
+CONFIG_UTEST_THR_PRIORITY=20
+# CONFIG_RT_USING_LWP is not set
+
+#
+# RT-Thread online packages
+#
+
+#
+# IoT - internet of things
+#
+# CONFIG_PKG_USING_LORAWAN_DRIVER is not set
+# CONFIG_PKG_USING_PAHOMQTT is not set
+# CONFIG_PKG_USING_UMQTT is not set
+# CONFIG_PKG_USING_WEBCLIENT is not set
+# CONFIG_PKG_USING_WEBNET is not set
+# CONFIG_PKG_USING_MONGOOSE is not set
+# CONFIG_PKG_USING_MYMQTT is not set
+# CONFIG_PKG_USING_KAWAII_MQTT is not set
+# CONFIG_PKG_USING_BC28_MQTT is not set
+# CONFIG_PKG_USING_WEBTERMINAL is not set
+# CONFIG_PKG_USING_CJSON is not set
+# CONFIG_PKG_USING_JSMN is not set
+# CONFIG_PKG_USING_LIBMODBUS is not set
+# CONFIG_PKG_USING_FREEMODBUS is not set
+# CONFIG_PKG_USING_LJSON is not set
+# CONFIG_PKG_USING_EZXML is not set
+# CONFIG_PKG_USING_NANOPB is not set
+
+#
+# Wi-Fi
+#
+
+#
+# Marvell WiFi
+#
+# CONFIG_PKG_USING_WLANMARVELL is not set
+
+#
+# Wiced WiFi
+#
+# CONFIG_PKG_USING_WLAN_WICED is not set
+# CONFIG_PKG_USING_RW007 is not set
+# CONFIG_PKG_USING_COAP is not set
+# CONFIG_PKG_USING_NOPOLL is not set
+CONFIG_PKG_USING_NETUTILS=y
+CONFIG_PKG_NETUTILS_PATH="/packages/iot/netutils"
+CONFIG_PKG_NETUTILS_TFTP=y
+CONFIG_PKG_NETUTILS_IPERF=y
+# CONFIG_PKG_NETUTILS_NETIO is not set
+CONFIG_PKG_NETUTILS_NTP=y
+CONFIG_NETUTILS_NTP_TIMEZONE=8
+CONFIG_NETUTILS_NTP_HOSTNAME="0.tw.pool.ntp.org"
+CONFIG_NETUTILS_NTP_HOSTNAME2="1.tw.pool.ntp.org"
+CONFIG_NETUTILS_NTP_HOSTNAME3="2.tw.pool.ntp.org"
+# CONFIG_PKG_NETUTILS_TELNET is not set
+# CONFIG_PKG_NETUTILS_TCPDUMP is not set
+CONFIG_PKG_USING_NETUTILS_V120=y
+# CONFIG_PKG_USING_NETUTILS_V110 is not set
+# CONFIG_PKG_USING_NETUTILS_V100 is not set
+# CONFIG_PKG_USING_NETUTILS_LATEST_VERSION is not set
+CONFIG_PKG_NETUTILS_VER="v1.2.0"
+# CONFIG_PKG_USING_CMUX is not set
+# CONFIG_PKG_USING_PPP_DEVICE is not set
+# CONFIG_PKG_USING_AT_DEVICE is not set
+# CONFIG_PKG_USING_ATSRV_SOCKET is not set
+# CONFIG_PKG_USING_WIZNET is not set
+
+#
+# IoT Cloud
+#
+# CONFIG_PKG_USING_ONENET is not set
+# CONFIG_PKG_USING_GAGENT_CLOUD is not set
+# CONFIG_PKG_USING_ALI_IOTKIT is not set
+# CONFIG_PKG_USING_AZURE is not set
+# CONFIG_PKG_USING_TENCENT_IOT_EXPLORER is not set
+# CONFIG_PKG_USING_JIOT-C-SDK is not set
+# CONFIG_PKG_USING_UCLOUD_IOT_SDK is not set
+# CONFIG_PKG_USING_JOYLINK is not set
+# CONFIG_PKG_USING_NIMBLE is not set
+# CONFIG_PKG_USING_OTA_DOWNLOADER is not set
+# CONFIG_PKG_USING_IPMSG is not set
+# CONFIG_PKG_USING_LSSDP is not set
+# CONFIG_PKG_USING_AIRKISS_OPEN is not set
+# CONFIG_PKG_USING_LIBRWS is not set
+# CONFIG_PKG_USING_TCPSERVER is not set
+# CONFIG_PKG_USING_PROTOBUF_C is not set
+# CONFIG_PKG_USING_ONNX_PARSER is not set
+# CONFIG_PKG_USING_ONNX_BACKEND is not set
+# CONFIG_PKG_USING_DLT645 is not set
+# CONFIG_PKG_USING_QXWZ is not set
+# CONFIG_PKG_USING_SMTP_CLIENT is not set
+# CONFIG_PKG_USING_ABUP_FOTA is not set
+# CONFIG_PKG_USING_LIBCURL2RTT is not set
+# CONFIG_PKG_USING_CAPNP is not set
+# CONFIG_PKG_USING_RT_CJSON_TOOLS is not set
+# CONFIG_PKG_USING_AGILE_TELNET is not set
+# CONFIG_PKG_USING_NMEALIB is not set
+# CONFIG_PKG_USING_AGILE_JSMN is not set
+# CONFIG_PKG_USING_PDULIB is not set
+# CONFIG_PKG_USING_BTSTACK is not set
+# CONFIG_PKG_USING_LORAWAN_ED_STACK is not set
+# CONFIG_PKG_USING_WAYZ_IOTKIT is not set
+
+#
+# security packages
+#
+# CONFIG_PKG_USING_MBEDTLS is not set
+# CONFIG_PKG_USING_libsodium is not set
+# CONFIG_PKG_USING_TINYCRYPT is not set
+# CONFIG_PKG_USING_TFM is not set
+# CONFIG_PKG_USING_YD_CRYPTO is not set
+
+#
+# language packages
+#
+# CONFIG_PKG_USING_LUA is not set
+# CONFIG_PKG_USING_JERRYSCRIPT is not set
+# CONFIG_PKG_USING_MICROPYTHON is not set
+
+#
+# multimedia packages
+#
+# CONFIG_PKG_USING_OPENMV is not set
+# CONFIG_PKG_USING_MUPDF is not set
+# CONFIG_PKG_USING_STEMWIN is not set
+# CONFIG_PKG_USING_WAVPLAYER is not set
+# CONFIG_PKG_USING_TJPGD is not set
+# CONFIG_PKG_USING_HELIX is not set
+# CONFIG_PKG_USING_AZUREGUIX is not set
+# CONFIG_PKG_USING_TOUCHGFX2RTT is not set
+
+#
+# tools packages
+#
+# CONFIG_PKG_USING_CMBACKTRACE is not set
+# CONFIG_PKG_USING_EASYFLASH is not set
+# CONFIG_PKG_USING_EASYLOGGER is not set
+# CONFIG_PKG_USING_SYSTEMVIEW is not set
+# CONFIG_PKG_USING_RDB is not set
+# CONFIG_PKG_USING_QRCODE is not set
+# CONFIG_PKG_USING_ULOG_EASYFLASH is not set
+# CONFIG_PKG_USING_ULOG_FILE is not set
+# CONFIG_PKG_USING_LOGMGR is not set
+# CONFIG_PKG_USING_ADBD is not set
+# CONFIG_PKG_USING_COREMARK is not set
+# CONFIG_PKG_USING_DHRYSTONE is not set
+# CONFIG_PKG_USING_MEMORYPERF is not set
+# CONFIG_PKG_USING_NR_MICRO_SHELL is not set
+# CONFIG_PKG_USING_CHINESE_FONT_LIBRARY is not set
+# CONFIG_PKG_USING_LUNAR_CALENDAR is not set
+# CONFIG_PKG_USING_BS8116A is not set
+# CONFIG_PKG_USING_GPS_RMC is not set
+# CONFIG_PKG_USING_URLENCODE is not set
+# CONFIG_PKG_USING_UMCN is not set
+# CONFIG_PKG_USING_LWRB2RTT is not set
+# CONFIG_PKG_USING_CPU_USAGE is not set
+# CONFIG_PKG_USING_GBK2UTF8 is not set
+# CONFIG_PKG_USING_VCONSOLE is not set
+# CONFIG_PKG_USING_KDB is not set
+# CONFIG_PKG_USING_WAMR is not set
+
+#
+# system packages
+#
+# CONFIG_PKG_USING_GUIENGINE is not set
+# CONFIG_PKG_USING_PERSIMMON is not set
+# CONFIG_PKG_USING_CAIRO is not set
+# CONFIG_PKG_USING_PIXMAN is not set
+# CONFIG_PKG_USING_LWEXT4 is not set
+# CONFIG_PKG_USING_PARTITION is not set
+CONFIG_PKG_USING_FAL=y
+CONFIG_PKG_FAL_PATH="/packages/system/fal"
+CONFIG_FAL_DEBUG_CONFIG=y
+CONFIG_FAL_DEBUG=1
+CONFIG_FAL_PART_HAS_TABLE_CFG=y
+CONFIG_FAL_USING_SFUD_PORT=y
+CONFIG_FAL_USING_NOR_FLASH_DEV_NAME="norflash0"
+# CONFIG_PKG_USING_FAL_V00500 is not set
+# CONFIG_PKG_USING_FAL_V00400 is not set
+# CONFIG_PKG_USING_FAL_V00300 is not set
+# CONFIG_PKG_USING_FAL_V00200 is not set
+# CONFIG_PKG_USING_FAL_V00100 is not set
+CONFIG_PKG_USING_FAL_LATEST_VERSION=y
+CONFIG_PKG_FAL_VER="latest"
+CONFIG_PKG_FAL_VER_NUM=0x99999
+# CONFIG_PKG_USING_FLASHDB is not set
+# CONFIG_PKG_USING_SQLITE is not set
+# CONFIG_PKG_USING_RTI is not set
+# CONFIG_PKG_USING_LITTLEVGL2RTT is not set
+# CONFIG_PKG_USING_CMSIS is not set
+# CONFIG_PKG_USING_DFS_YAFFS is not set
+# CONFIG_PKG_USING_LITTLEFS is not set
+# CONFIG_PKG_USING_THREAD_POOL is not set
+# CONFIG_PKG_USING_ROBOTS is not set
+# CONFIG_PKG_USING_EV is not set
+# CONFIG_PKG_USING_SYSWATCH is not set
+# CONFIG_PKG_USING_SYS_LOAD_MONITOR is not set
+# CONFIG_PKG_USING_PLCCORE is not set
+CONFIG_PKG_USING_RAMDISK=y
+CONFIG_PKG_RAMDISK_PATH="/packages/system/ramdisk"
+# CONFIG_PKG_USING_RAMDISK_V010 is not set
+CONFIG_PKG_USING_RAMDISK_LATEST_VERSION=y
+CONFIG_PKG_RAMDISK_VER="latest"
+# CONFIG_PKG_USING_MININI is not set
+# CONFIG_PKG_USING_QBOOT is not set
+
+#
+# Micrium: Micrium software products porting for RT-Thread
+#
+# CONFIG_PKG_USING_UCOSIII_WRAPPER is not set
+# CONFIG_PKG_USING_UCOSII_WRAPPER is not set
+# CONFIG_PKG_USING_UC_CRC is not set
+# CONFIG_PKG_USING_UC_CLK is not set
+# CONFIG_PKG_USING_UC_COMMON is not set
+# CONFIG_PKG_USING_UC_MODBUS is not set
+# CONFIG_PKG_USING_PPOOL is not set
+# CONFIG_PKG_USING_OPENAMP is not set
+# CONFIG_PKG_USING_RT_PRINTF is not set
+# CONFIG_PKG_USING_RT_MEMCPY_CM is not set
+# CONFIG_PKG_USING_QFPLIB_M0_FULL is not set
+# CONFIG_PKG_USING_QFPLIB_M0_TINY is not set
+# CONFIG_PKG_USING_QFPLIB_M3 is not set
+
+#
+# peripheral libraries and drivers
+#
+# CONFIG_PKG_USING_SENSORS_DRIVERS is not set
+# CONFIG_PKG_USING_REALTEK_AMEBA is not set
+# CONFIG_PKG_USING_SHT2X is not set
+# CONFIG_PKG_USING_SHT3X is not set
+# CONFIG_PKG_USING_AS7341 is not set
+# CONFIG_PKG_USING_STM32_SDIO is not set
+# CONFIG_PKG_USING_ICM20608 is not set
+# CONFIG_PKG_USING_U8G2 is not set
+# CONFIG_PKG_USING_BUTTON is not set
+# CONFIG_PKG_USING_PCF8574 is not set
+# CONFIG_PKG_USING_SX12XX is not set
+# CONFIG_PKG_USING_SIGNAL_LED is not set
+# CONFIG_PKG_USING_LEDBLINK is not set
+# CONFIG_PKG_USING_LITTLED is not set
+# CONFIG_PKG_USING_LKDGUI is not set
+# CONFIG_PKG_USING_NRF5X_SDK is not set
+# CONFIG_PKG_USING_NRFX is not set
+# CONFIG_PKG_USING_WM_LIBRARIES is not set
+# CONFIG_PKG_USING_KENDRYTE_SDK is not set
+# CONFIG_PKG_USING_INFRARED is not set
+# CONFIG_PKG_USING_ROSSERIAL is not set
+# CONFIG_PKG_USING_AGILE_BUTTON is not set
+# CONFIG_PKG_USING_AGILE_LED is not set
+# CONFIG_PKG_USING_AT24CXX is not set
+# CONFIG_PKG_USING_MOTIONDRIVER2RTT is not set
+# CONFIG_PKG_USING_AD7746 is not set
+# CONFIG_PKG_USING_PCA9685 is not set
+# CONFIG_PKG_USING_I2C_TOOLS is not set
+# CONFIG_PKG_USING_NRF24L01 is not set
+# CONFIG_PKG_USING_TOUCH_DRIVERS is not set
+# CONFIG_PKG_USING_MAX17048 is not set
+# CONFIG_PKG_USING_RPLIDAR is not set
+# CONFIG_PKG_USING_AS608 is not set
+# CONFIG_PKG_USING_RC522 is not set
+# CONFIG_PKG_USING_WS2812B is not set
+# CONFIG_PKG_USING_EMBARC_BSP is not set
+# CONFIG_PKG_USING_EXTERN_RTC_DRIVERS is not set
+# CONFIG_PKG_USING_MULTI_RTIMER is not set
+# CONFIG_PKG_USING_MAX7219 is not set
+# CONFIG_PKG_USING_BEEP is not set
+# CONFIG_PKG_USING_EASYBLINK is not set
+# CONFIG_PKG_USING_PMS_SERIES is not set
+# CONFIG_PKG_USING_CAN_YMODEM is not set
+# CONFIG_PKG_USING_LORA_RADIO_DRIVER is not set
+# CONFIG_PKG_USING_QLED is not set
+# CONFIG_PKG_USING_PAJ7620 is not set
+# CONFIG_PKG_USING_AGILE_CONSOLE is not set
+# CONFIG_PKG_USING_LD3320 is not set
+# CONFIG_PKG_USING_WK2124 is not set
+# CONFIG_PKG_USING_LY68L6400 is not set
+# CONFIG_PKG_USING_DM9051 is not set
+# CONFIG_PKG_USING_SSD1306 is not set
+# CONFIG_PKG_USING_QKEY is not set
+# CONFIG_PKG_USING_RS485 is not set
+# CONFIG_PKG_USING_NES is not set
+# CONFIG_PKG_USING_VIRTUAL_SENSOR is not set
+# CONFIG_PKG_USING_VDEVICE is not set
+# CONFIG_PKG_USING_SGM706 is not set
+
+#
+# miscellaneous packages
+#
+# CONFIG_PKG_USING_LIBCSV is not set
+CONFIG_PKG_USING_OPTPARSE=y
+CONFIG_PKG_OPTPARSE_PATH="/packages/misc/optparse"
+CONFIG_PKG_USING_OPTPARSE_V100=y
+# CONFIG_PKG_USING_OPTPARSE_LATEST_VERSION is not set
+CONFIG_PKG_OPTPARSE_VER="v1.0.0"
+# CONFIG_OPTPARSE_USING_DEMO is not set
+# CONFIG_PKG_USING_FASTLZ is not set
+# CONFIG_PKG_USING_MINILZO is not set
+# CONFIG_PKG_USING_QUICKLZ is not set
+# CONFIG_PKG_USING_LZMA is not set
+# CONFIG_PKG_USING_MULTIBUTTON is not set
+# CONFIG_PKG_USING_FLEXIBLE_BUTTON is not set
+# CONFIG_PKG_USING_CANFESTIVAL is not set
+# CONFIG_PKG_USING_ZLIB is not set
+# CONFIG_PKG_USING_DSTR is not set
+# CONFIG_PKG_USING_TINYFRAME is not set
+# CONFIG_PKG_USING_KENDRYTE_DEMO is not set
+# CONFIG_PKG_USING_DIGITALCTRL is not set
+# CONFIG_PKG_USING_UPACKER is not set
+# CONFIG_PKG_USING_UPARAM is not set
+
+#
+# samples: kernel and components samples
+#
+# CONFIG_PKG_USING_KERNEL_SAMPLES is not set
+# CONFIG_PKG_USING_FILESYSTEM_SAMPLES is not set
+# CONFIG_PKG_USING_NETWORK_SAMPLES is not set
+# CONFIG_PKG_USING_PERIPHERAL_SAMPLES is not set
+# CONFIG_PKG_USING_HELLO is not set
+CONFIG_PKG_USING_VI=y
+CONFIG_PKG_VI_PATH="/packages/misc/vi"
+CONFIG_VI_MAX_LEN=4096
+# CONFIG_VI_ENABLE_8BIT is not set
+CONFIG_VI_ENABLE_COLON=y
+CONFIG_VI_ENABLE_YANKMARK=y
+CONFIG_VI_ENABLE_SEARCH=y
+CONFIG_VI_ENABLE_DOT_CMD=y
+CONFIG_VI_ENABLE_READONLY=y
+CONFIG_VI_ENABLE_SETOPTS=y
+CONFIG_VI_ENABLE_SET=y
+CONFIG_VI_ENABLE_VI_ASK_TERMINAL=y
+CONFIG_VI_ENABLE_UNDO=y
+CONFIG_VI_ENABLE_UNDO_QUEUE=y
+CONFIG_VI_UNDO_QUEUE_MAX=256
+CONFIG_PKG_USING_VI_LATEST_VERSION=y
+CONFIG_PKG_VI_VER="latest"
+# CONFIG_PKG_USING_KI is not set
+# CONFIG_PKG_USING_NNOM is not set
+# CONFIG_PKG_USING_LIBANN is not set
+# CONFIG_PKG_USING_ELAPACK is not set
+# CONFIG_PKG_USING_ARMv7M_DWT is not set
+# CONFIG_PKG_USING_VT100 is not set
+# CONFIG_PKG_USING_ULAPACK is not set
+# CONFIG_PKG_USING_UKAL is not set
+# CONFIG_PKG_USING_CRCLIB is not set
+
+#
+# games: games run on RT-Thread console
+#
+# CONFIG_PKG_USING_THREES is not set
+# CONFIG_PKG_USING_2048 is not set
+# CONFIG_PKG_USING_SNAKE is not set
+# CONFIG_PKG_USING_TETRIS is not set
+# CONFIG_PKG_USING_LWGPS is not set
+# CONFIG_PKG_USING_TENSORFLOWLITEMICRO is not set
+# CONFIG_PKG_USING_STATE_MACHINE is not set
+
+#
+# Nuvoton Packages Config
+#
+CONFIG_NU_PKG_USING_UTILS=y
+CONFIG_NU_PKG_USING_DEMO=y
+# CONFIG_NU_PKG_USING_BMX055 is not set
+# CONFIG_NU_PKG_USING_MAX31875 is not set
+# CONFIG_NU_PKG_USING_NAU88L25 is not set
+# CONFIG_NU_PKG_USING_NAU8822 is not set
+# CONFIG_NU_PKG_USING_ILI9341 is not set
+# CONFIG_NU_PKG_USING_SPINAND is not set
+
+#
+# Hardware Drivers Config
+#
+
+#
+# On-chip Peripheral Drivers
+#
+CONFIG_SOC_SERIES_NUC980=y
+CONFIG_BSP_USE_STDDRIVER_SOURCE=y
+CONFIG_BSP_USING_MMU=y
+CONFIG_BSP_USING_PDMA=y
+CONFIG_NU_PDMA_MEMFUN_ACTOR_MAX=2
+CONFIG_BSP_USING_GPIO=y
+CONFIG_BSP_USING_EMAC=y
+# CONFIG_BSP_USING_EMAC0 is not set
+CONFIG_BSP_USING_EMAC1=y
+CONFIG_NU_EMAC_PDMA_MEMCOPY=y
+CONFIG_NU_EMAC_PDMA_MEMCOPY_THRESHOLD=128
+# CONFIG_BSP_USING_RTC is not set
+CONFIG_BSP_USING_ADC=y
+CONFIG_BSP_USING_TMR=y
+CONFIG_BSP_USING_TIMER=y
+CONFIG_BSP_USING_TMR0=y
+CONFIG_BSP_USING_TIMER0=y
+# CONFIG_BSP_USING_TIMER0_CAPTURE is not set
+CONFIG_BSP_USING_TMR1=y
+CONFIG_BSP_USING_TIMER1=y
+# CONFIG_BSP_USING_TIMER1_CAPTURE is not set
+CONFIG_BSP_USING_TMR2=y
+CONFIG_BSP_USING_TIMER2=y
+# CONFIG_BSP_USING_TIMER2_CAPTURE is not set
+CONFIG_BSP_USING_TMR3=y
+CONFIG_BSP_USING_TIMER3=y
+# CONFIG_BSP_USING_TIMER3_CAPTURE is not set
+CONFIG_BSP_USING_TMR4=y
+CONFIG_BSP_USING_TIMER4=y
+# CONFIG_BSP_USING_TIMER4_CAPTURE is not set
+CONFIG_BSP_USING_UART=y
+CONFIG_BSP_USING_UART0=y
+# CONFIG_BSP_USING_UART0_TX_DMA is not set
+# CONFIG_BSP_USING_UART0_RX_DMA is not set
+# CONFIG_BSP_USING_UART1 is not set
+# CONFIG_BSP_USING_UART2 is not set
+# CONFIG_BSP_USING_UART3 is not set
+CONFIG_BSP_USING_UART4=y
+CONFIG_BSP_USING_UART4_TX_DMA=y
+CONFIG_BSP_USING_UART4_RX_DMA=y
+# CONFIG_BSP_USING_UART5 is not set
+# CONFIG_BSP_USING_UART6 is not set
+# CONFIG_BSP_USING_UART7 is not set
+CONFIG_BSP_USING_UART8=y
+CONFIG_BSP_USING_UART8_TX_DMA=y
+CONFIG_BSP_USING_UART8_RX_DMA=y
+# CONFIG_BSP_USING_UART9 is not set
+CONFIG_BSP_USING_I2C=y
+# CONFIG_BSP_USING_I2C0 is not set
+CONFIG_BSP_USING_I2C1=y
+# CONFIG_BSP_USING_I2C2 is not set
+# CONFIG_BSP_USING_I2C3 is not set
+# CONFIG_BSP_USING_SDH is not set
+CONFIG_BSP_USING_CAN=y
+# CONFIG_BSP_USING_CAN0 is not set
+# CONFIG_BSP_USING_CAN1 is not set
+# CONFIG_BSP_USING_CAN2 is not set
+CONFIG_BSP_USING_CAN3=y
+# CONFIG_BSP_USING_PWM is not set
+CONFIG_BSP_USING_SPI=y
+CONFIG_BSP_USING_SPI_PDMA=y
+# CONFIG_BSP_USING_SPI0_NONE is not set
+CONFIG_BSP_USING_SPI0=y
+CONFIG_BSP_USING_SPI0_PDMA=y
+CONFIG_BSP_USING_SPI1_NONE=y
+# CONFIG_BSP_USING_SPI1 is not set
+# CONFIG_BSP_USING_I2S is not set
+CONFIG_BSP_USING_QSPI=y
+CONFIG_BSP_USING_QSPI0=y
+CONFIG_BSP_USING_QSPI0_PDMA=y
+# CONFIG_BSP_USING_SCUART is not set
+CONFIG_BSP_USING_CRYPTO=y
+# CONFIG_NU_PRNG_USE_SEED is not set
+# CONFIG_BSP_USING_SOFT_I2C is not set
+CONFIG_BSP_USING_WDT=y
+# CONFIG_BSP_USING_EBI is not set
+CONFIG_BSP_USING_USBD=y
+CONFIG_BSP_USING_USBH=y
+
+#
+# On-board Peripheral Drivers
+#
+CONFIG_BSP_USING_CONSOLE=y
+CONFIG_BOARD_USING_UART8_RS485=y
+CONFIG_BOARD_USING_STORAGE_SPIFLASH=y
+CONFIG_BOARD_USING_USB0_DEVICE_HOST=y
+
+#
+# Board extended module drivers
+#
+CONFIG_BOARD_USING_IP101GR=y
+CONFIG_BOARD_USE_UTEST=y
+CONFIG_UTEST_CMD_PREFIX="bsp.nuvoton.nk-rtu980.test.utest."
diff --git a/bsp/nuvoton/nk-rtu980/Kconfig b/bsp/nuvoton/nk-rtu980/Kconfig
new file mode 100644
index 0000000000..5c55e87c61
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/Kconfig
@@ -0,0 +1,29 @@
+mainmenu "RT-Thread Configuration"
+
+config BSP_DIR
+    string
+    option env="BSP_ROOT"
+    default "."
+
+config RTT_DIR
+    string
+    option env="RTT_ROOT"
+    default "../../.."
+    
+# you can change the RTT_ROOT default "../../.." to your rtthread_root,
+# example : default "F:/git_repositories/rt-thread"
+
+config PKGS_DIR
+    string
+    option env="PKGS_ROOT"
+    default "packages"
+
+config NU_PKGS_DIR
+    string
+    option env="NU_PKGS_ROOT"
+    default "../libraries/nu_packages"
+
+source "$RTT_DIR/Kconfig"
+source "$PKGS_DIR/Kconfig"
+source "$NU_PKGS_DIR/Kconfig"
+source "$BSP_DIR/board/Kconfig"
diff --git a/bsp/nuvoton/nk-rtu980/README.md b/bsp/nuvoton/nk-rtu980/README.md
new file mode 100644
index 0000000000..20294482ea
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/README.md
@@ -0,0 +1,106 @@
+# NK-RTU980
+## 1. Introduction
+NuMaker-RTU-NUC980, also known as Chili, is a Nuvoton’s development platform that uses NUC980DR61YC microprocessor with a 64-pin package on a 50 mm x 50 mm dimension PCB. Chili board provides a high-end hardware features including a NUC980DR61YC ARM926EJ-S processor with 64 MB DRAM, 32MB SPI NOR Flash, 10/100 Ethernet MAC interface, USB 2.0 High Speed host/device connector, CAN bus, RS-485 and five GPIOs. Crypto engine supports RSA2048, AES256, ECC, SHA512 algorithm and a Pseudo Random Number Generator for communication security protection.
+
+
+[![NK-RTU980](https://i.imgur.com/gCKG4PN.png "NK-RTU980")](https://i.imgur.com/gCKG4PN.png "NK-RTU980")
+
+
+### 1.1 MCU specification
+
+|  | Features |
+| -- | -- |
+| Part NO. | NUC980DR61YC |
+| CPU ARCH. | 32-bit ARM926EJ-STM |
+| Operation frequency | 300 MHz |
+| Embedded SDRAM size | Built-in 64MB |
+| Crypto engine |  AES, RSA, ECC, HMAC and SHA crypto accelerator |
+| RMII interface |  10/100 Mbps x1 |
+| USB 2.0 |  High Speed Host x1, High Speed Host/Device x1 |
+| Extern storage |  32 MB SPI-NOR Flash |
+
+### 1.2 Interface
+
+| Interface |
+| -- |
+| Arduino UNO |
+| A RJ45 Ethernet |
+| An USB 2.0 HS port |
+| An USB 2.0 HS OTG port |
+| A RS-485 |
+| A CAN bus |
+| An ICE connector |
+
+### 1.3 On-board devices
+
+| Device | Description | Driver supporting status |
+| -- | -- | -- |
+|Ethernet PHY | IP101GR | Supported |
+|Button |  | Supported |
+|LEDs |  | Supported |
+|USB Device | VCOM + MStorage | Supported |
+|USB Host | MStorage | Supported |
+|SPI NOR flash | W25Q256F | Supported |
+|VCOM | For console | Ready.(Need to install VCOM driver) |
+
+## 2. Supported compiler
+Support GCC, MDK4 and MDK5 IDE/compilers. More information of these compiler version as following:
+
+| IDE/Compiler  | Tested version            |
+| ---------- | ---------------------------- |
+| MDK4       | 4.76                         |
+| MDK5       | 5.26.2                       |
+| GCC        | GCC 5.4.1 20160919 (release) |
+
+Notice: Please install ICE driver for development.
+
+## 3. Program firmware
+### 3.1 SDRAM Downloading using NuWriter
+You can use NuWriter to download rtthread.bin into SDRAM, then run it.
+[![SDRAM Downloading using NuWriter](https://i.imgur.com/NvbzsRp.gif "SDRAM Downloading using NuWriter")](https://i.imgur.com/NvbzsRp.gif "SDRAM Downloading using NuWriter")
+<br>
+Choose type: DDR/SRAM<br>
+<< Press Re-Connect >><br>
+Choose file: Specify your rtthread.bin file.<br>
+Execute Address: 0x0<br>
+Option: Download and run<br>
+<< Press Download >><br>
+Enjoy!! <br>
+<br>
+
+### 3.2 SPI NOR flash using NuWriter
+You can use NuWriter to program rtthread.bin into SPI NOR flash.
+[![SPI NOR flash](https://i.imgur.com/8OtXGSQ.gif "SPI NOR flash")](https://i.imgur.com/8OtXGSQ.gif "SPI NOR flash using NuWriter")
+<br>
+Choose type: SPI<br>
+<< Press Re-Connect >><br>
+Choose file: Specify your rtthread.bin file.<br>
+Image Type: Loader<br>
+Execute Address: 0x0<br>
+<< Press Program >><br>
+<< Press OK & Wait it down >><br>
+<< Set Power-on setting to SPI NOR booting >><br>
+<< Press Reset button on board >><br>
+Enjoy!! <br>
+<br>
+
+## 4. Test
+You can use Tera Term terminate emulator (or other software) to type commands of RTT. All parameters of serial communication are shown in below image. Here, you can find out the corresponding port number of Nuvoton Virtual Com Port in window device manager.
+
+[![Serial settings](https://i.imgur.com/5NYuSNM.png "Serial settings")](https://i.imgur.com/5NYuSNM.png "Serial settings")
+
+## 5. Purchase
+* [Nuvoton Direct][1]
+
+## 6. Resources
+* [Download Board Schematics][2]
+* [Download NK-RTU980 Quick Start Guide][3]
+* [Download TRM][4]
+* [Download NuWriter][5]
+
+  [1]: https://direct.nuvoton.com/tw/numaker-rtu-nuc980
+  [2]: https://www.nuvoton.com/resource-download.jsp?tp_GUID=HL1020200508155209
+  [3]: https://www.nuvoton.com/resource-download.jsp?tp_GUID=UG1320200623183237
+  [4]: https://www.nuvoton.com/resource-download.jsp?tp_GUID=DA05-NUC980-1
+  [5]: https://github.com/OpenNuvoton/NUC980_NuWriter
+  
\ No newline at end of file
diff --git a/bsp/nuvoton/nk-rtu980/SConscript b/bsp/nuvoton/nk-rtu980/SConscript
new file mode 100644
index 0000000000..fe0ae941ae
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/SConscript
@@ -0,0 +1,14 @@
+# for module compiling
+import os
+Import('RTT_ROOT')
+
+cwd = str(Dir('#'))
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')
diff --git a/bsp/nuvoton/nk-rtu980/SConstruct b/bsp/nuvoton/nk-rtu980/SConstruct
new file mode 100644
index 0000000000..4290749228
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/SConstruct
@@ -0,0 +1,55 @@
+import os
+import sys
+import rtconfig
+
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
+
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+try:
+    from building import *
+except:
+    print('Cannot found RT-Thread root directory, please check RTT_ROOT')
+    print(RTT_ROOT)
+    exit(-1)
+
+TARGET = 'rtthread.' + rtconfig.TARGET_EXT
+
+DefaultEnvironment(tools=[])
+env = Environment(tools = ['mingw'],
+	AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+	CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
+	CXX = rtconfig.CXX, CXXFLAGS = rtconfig.CFLAGS,
+	AR = rtconfig.AR, ARFLAGS = '-rc',
+	LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+
+Export('RTT_ROOT')
+Export('rtconfig')
+
+SDK_ROOT = os.path.abspath('./')
+
+if os.path.exists(SDK_ROOT + '/libraries'):
+    libraries_path_prefix = SDK_ROOT + '/libraries'
+else:
+    libraries_path_prefix = os.path.dirname(SDK_ROOT) + '/libraries'
+
+SDK_LIB = libraries_path_prefix
+Export('SDK_LIB')
+
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
+
+nuvoton_library = 'nuc980'
+rtconfig.BSP_LIBRARY_TYPE = nuvoton_library
+
+# include libraries
+objs.extend(SConscript(os.path.join(libraries_path_prefix, nuvoton_library, 'SConscript')))
+
+# include nu_pkgs
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'nu_packages', 'SConscript')))
+
+# make a building
+DoBuilding(TARGET, objs)
diff --git a/bsp/nuvoton/nk-rtu980/applications/SConscript b/bsp/nuvoton/nk-rtu980/applications/SConscript
new file mode 100644
index 0000000000..9ffdbcd0f9
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/applications/SConscript
@@ -0,0 +1,11 @@
+# RT-Thread building script for component
+
+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c') + Glob('*.cpp')
+CPPPATH = [cwd, str(Dir('#'))]
+
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/bsp/nuvoton/nk-rtu980/applications/main.c b/bsp/nuvoton/nk-rtu980/applications/main.c
new file mode 100644
index 0000000000..73992209ed
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/applications/main.c
@@ -0,0 +1,71 @@
+/**************************************************************************//**
+*
+* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
+*
+* SPDX-License-Identifier: Apache-2.0
+*
+* Change Logs:
+* Date            Author       Notes
+* 2020-12-12      Wayne        First version
+*
+******************************************************************************/
+
+#include <rtconfig.h>
+#include <rtdevice.h>
+
+#if defined(RT_USING_PIN)
+#include <drv_gpio.h>
+
+/* defined the LED_G1 pin: PC3 */
+#define LED_G1   NU_GET_PININDEX(NU_PC, 3)
+
+/* defined the LED_G2 pin: PC11 */
+#define LED_G2   NU_GET_PININDEX(NU_PC, 11)
+
+/* defined the BUTTON pin: PC15 */
+#define BUTTON   NU_GET_PININDEX(NU_PC, 15)
+
+static uint32_t u32Button = BUTTON;
+
+void nu_button_cb(void *args)
+{
+    static int u32ToggleFlag = 0;
+    uint32_t u32Key = *((uint32_t *)(args));
+
+    switch (u32Key)
+    {
+    case BUTTON:
+        u32ToggleFlag = ~u32ToggleFlag;
+        rt_pin_write(LED_G1, u32ToggleFlag);
+        break;
+    }
+}
+#endif
+
+int main(int argc, char **argv)
+{
+#if defined(RT_USING_PIN)
+    int counter = 1000;
+
+    /* set LED_G1 pin mode to output */
+    rt_pin_mode(LED_G1, PIN_MODE_OUTPUT);
+
+    /* set LED_G2 pin mode to output */
+    rt_pin_mode(LED_G2, PIN_MODE_OUTPUT);
+
+    /* set BUTTON pin mode to input */
+    rt_pin_mode(BUTTON, PIN_MODE_INPUT_PULLUP);
+    rt_pin_attach_irq(BUTTON, PIN_IRQ_MODE_FALLING, nu_button_cb, &u32Button);
+    rt_pin_irq_enable(BUTTON, PIN_IRQ_ENABLE);
+
+    while (counter--)
+    {
+        rt_pin_write(LED_G2, PIN_HIGH);
+        rt_thread_mdelay(200);
+        rt_pin_write(LED_G2, PIN_LOW);
+        rt_thread_mdelay(200);
+    }
+#endif
+
+    return 0;
+}
diff --git a/bsp/nuvoton/nk-rtu980/applications/mnt.c b/bsp/nuvoton/nk-rtu980/applications/mnt.c
new file mode 100644
index 0000000000..779db2ffe8
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/applications/mnt.c
@@ -0,0 +1,237 @@
+/**************************************************************************//**
+*
+* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
+*
+* SPDX-License-Identifier: Apache-2.0
+*
+* Change Logs:
+* Date            Author       Notes
+* 2021-3-4        Wayne        First version
+*
+******************************************************************************/
+
+#include "rtconfig.h"
+
+#include <rtthread.h>
+
+#define LOG_TAG         "mnt"
+#define DBG_ENABLE
+#define DBG_SECTION_NAME "mnt"
+#define DBG_LEVEL DBG_ERROR
+#define DBG_COLOR
+#include <rtdbg.h>
+
+#if defined(RT_USING_DFS)
+    #include <dfs_fs.h>
+    #include <dfs_posix.h>
+#endif
+
+#if defined(PKG_USING_FAL)
+    #include <fal.h>
+#endif
+
+#if defined(PKG_USING_RAMDISK)
+    #define RAMDISK_NAME         "ramdisk0"
+    #define RAMDISK_UDC          "ramdisk1"
+    #define MOUNT_POINT_RAMDISK0 "/"
+#endif
+
+#if defined(BOARD_USING_STORAGE_SPIFLASH)
+    #define PARTITION_NAME_FILESYSTEM "filesystem"
+    #define MOUNT_POINT_SPIFLASH0 "/mnt/"PARTITION_NAME_FILESYSTEM
+#endif
+
+#ifdef RT_USING_DFS_MNTTABLE
+
+/*
+const char   *device_name;
+const char   *path;
+const char   *filesystemtype;
+unsigned long rwflag;
+const void   *data;
+*/
+
+const struct dfs_mount_tbl mount_table[] =
+{
+    { RAMDISK_UDC, "/mnt/ram_usbd", "elm", 0, RT_NULL },
+    {0},
+};
+#endif
+
+
+#if defined(PKG_USING_RAMDISK)
+
+extern rt_err_t ramdisk_init(const char *dev_name, rt_uint8_t *disk_addr, rt_size_t block_size, rt_size_t num_block);
+int ramdisk_device_init(void)
+{
+    rt_err_t result = RT_EOK;
+
+    /* Create a 8MB RAMDISK */
+    result = ramdisk_init(RAMDISK_NAME, NULL, 512, 2 * 8192);
+    RT_ASSERT(result == RT_EOK);
+
+    /* Create a 4MB RAMDISK */
+    result = ramdisk_init(RAMDISK_UDC, NULL, 512, 2 * 4096);
+    RT_ASSERT(result == RT_EOK);
+
+    return 0;
+}
+INIT_DEVICE_EXPORT(ramdisk_device_init);
+
+/* Recursive mkdir */
+static int mkdir_p(const char *dir, const mode_t mode)
+{
+    int ret = -1;
+    char *tmp = NULL;
+    char *p = NULL;
+    struct stat sb;
+    rt_size_t len;
+
+    if (!dir)
+        goto exit_mkdir_p;
+
+    /* Copy path */
+    /* Get the string length */
+    len = strlen(dir);
+    tmp = rt_strdup(dir);
+
+    /* Remove trailing slash */
+    if (tmp[len - 1] == '/')
+    {
+        tmp[len - 1] = '\0';
+        len--;
+    }
+
+    /* check if path exists and is a directory */
+    if (stat(tmp, &sb) == 0)
+    {
+        if (S_ISDIR(sb.st_mode))
+        {
+            ret = 0;
+            goto exit_mkdir_p;
+        }
+    }
+
+    /* Recursive mkdir */
+    for (p = tmp + 1; p - tmp <= len; p++)
+    {
+        if ((*p == '/') || (p - tmp == len))
+        {
+            *p = 0;
+
+            /* Test path */
+            if (stat(tmp, &sb) != 0)
+            {
+                /* Path does not exist - create directory */
+                if (mkdir(tmp, mode) < 0)
+                {
+                    goto exit_mkdir_p;
+                }
+            }
+            else if (!S_ISDIR(sb.st_mode))
+            {
+                /* Not a directory */
+                goto exit_mkdir_p;
+            }
+            if (p - tmp != len)
+                *p = '/';
+        }
+    }
+
+    ret = 0;
+
+exit_mkdir_p:
+
+    if (tmp)
+        rt_free(tmp);
+
+    return ret;
+}
+
+/* Initialize the filesystem */
+int filesystem_init(void)
+{
+    rt_err_t result = RT_EOK;
+
+    // ramdisk as root
+    if (!rt_device_find(RAMDISK_NAME))
+    {
+        LOG_E("cannot find %s device", RAMDISK_NAME);
+        goto exit_filesystem_init;
+    }
+    else
+    {
+        /* Format these ramdisk */
+        result = (rt_err_t)dfs_mkfs("elm", RAMDISK_NAME);
+        RT_ASSERT(result == RT_EOK);
+
+        /* mount ramdisk0 as root directory */
+        if (dfs_mount(RAMDISK_NAME, "/", "elm", 0, RT_NULL) == 0)
+        {
+            LOG_I("ramdisk mounted on \"/\".");
+
+            /* now you can create dir dynamically. */
+            mkdir_p("/mnt", 0x777);
+            mkdir_p("/cache", 0x777);
+            mkdir_p("/download", 0x777);
+            mkdir_p("/mnt/ram_usbd", 0x777);
+            mkdir_p("/mnt/filesystem", 0x777);
+#if defined(RT_USBH_MSTORAGE) && defined(UDISK_MOUNTPOINT)
+            mkdir_p(UDISK_MOUNTPOINT, 0x777);
+#endif
+        }
+        else
+        {
+            LOG_E("root folder creation failed!\n");
+            goto exit_filesystem_init;
+        }
+    }
+
+    if (!rt_device_find(RAMDISK_UDC))
+    {
+        LOG_E("cannot find %s device", RAMDISK_UDC);
+        goto exit_filesystem_init;
+    }
+    else
+    {
+        /* Format these ramdisk */
+        result = (rt_err_t)dfs_mkfs("elm", RAMDISK_UDC);
+        RT_ASSERT(result == RT_EOK);
+    }
+
+exit_filesystem_init:
+
+    return -result;
+}
+INIT_ENV_EXPORT(filesystem_init);
+#endif
+
+#if defined(BOARD_USING_STORAGE_SPIFLASH)
+int mnt_init_spiflash0(void)
+{
+#if defined(PKG_USING_FAL)
+    extern int fal_init_check(void);
+    if (!fal_init_check())
+        fal_init();
+#endif
+    struct rt_device *psNorFlash = fal_blk_device_create(PARTITION_NAME_FILESYSTEM);
+    if (!psNorFlash)
+    {
+        rt_kprintf("Failed to create block device for %s.\n", PARTITION_NAME_FILESYSTEM);
+        goto exit_mnt_init_spiflash0;
+    }
+    else if (dfs_mount(psNorFlash->parent.name, MOUNT_POINT_SPIFLASH0, "elm", 0, 0) != 0)
+    {
+        rt_kprintf("Failed to mount elm on %s.\n", MOUNT_POINT_SPIFLASH0);
+        rt_kprintf("Try to execute 'mkfs -t elm %s' first, then reboot.\n", PARTITION_NAME_FILESYSTEM);
+        goto exit_mnt_init_spiflash0;
+    }
+    rt_kprintf("mount %s with elmfat type: ok\n", PARTITION_NAME_FILESYSTEM);
+
+exit_mnt_init_spiflash0:
+
+    return 0;
+}
+INIT_ENV_EXPORT(mnt_init_spiflash0);
+#endif
+
diff --git a/bsp/nuvoton/nk-rtu980/board/Kconfig b/bsp/nuvoton/nk-rtu980/board/Kconfig
new file mode 100644
index 0000000000..2682f8b89f
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/board/Kconfig
@@ -0,0 +1,48 @@
+menu "Hardware Drivers Config"
+
+    menu "On-chip Peripheral Drivers"
+        source "$BSP_DIR/../libraries/nuc980/rtt_port/Kconfig"
+    endmenu
+
+    menu "On-board Peripheral Drivers"
+
+        config BSP_USING_CONSOLE
+            bool "Enable UART0 for RTT Console(uart0)"
+            select BSP_USING_UART
+            select BSP_USING_UART0
+            default y
+
+        config BOARD_USING_UART8_RS485
+            bool "Enable UART8 for RS485(AUD) communication(uart8)"
+            select BSP_USING_UART
+            select BSP_USING_UART8
+            default y
+
+        config BOARD_USING_STORAGE_SPIFLASH
+            bool "SPI NOR FLASH supporting(over qspi0)"
+            select BSP_USING_QSPI
+            select BSP_USING_QSPI0
+            default y
+
+        config BOARD_USING_USB0_DEVICE_HOST
+            select BSP_USING_USBH
+            select BSP_USING_USBD
+            bool "Enable USB0 Device/Host"
+            help
+                Choose this option if you need USB device or host function mode.
+                    If you need USB host, please remember short to ground on JP1 jumper.
+
+    endmenu
+
+    menu "Board extended module drivers"
+
+        config BOARD_USING_IP101GR
+            bool "Enable ethernet phy supporting(over emac/mdio)"
+            select BSP_USING_EMAC
+            select BSP_USING_EMAC1
+            default n
+
+    endmenu
+
+
+endmenu
diff --git a/bsp/nuvoton/nk-rtu980/board/SConscript b/bsp/nuvoton/nk-rtu980/board/SConscript
new file mode 100644
index 0000000000..3f8e1c167f
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/board/SConscript
@@ -0,0 +1,14 @@
+# RT-Thread building script for component
+
+from building import *
+
+
+Import('RTT_ROOT')
+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c') + Glob('*.cpp')
+CPPPATH = [ cwd ]
+
+group = DefineGroup('board', src, depend = [''], CPPPATH = CPPPATH)
+Return('group')
diff --git a/bsp/nuvoton/nk-rtu980/board/board.h b/bsp/nuvoton/nk-rtu980/board/board.h
new file mode 100644
index 0000000000..d361487629
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/board/board.h
@@ -0,0 +1,43 @@
+/**************************************************************************//**
+*
+* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
+*
+* SPDX-License-Identifier: Apache-2.0
+*
+* Change Logs:
+* Date            Author       Notes
+* 2020-1-16       Wayne        First version
+*
+******************************************************************************/
+
+#ifndef __BOARD_H__
+#define __BOARD_H__
+
+#include "NuMicro.h"
+#include "drv_sys.h"
+
+#if defined(__CC_ARM)
+    extern int Image$$RW_RAM1$$ZI$$Limit;
+    #define BOARD_HEAP_START    (void*)&Image$$RW_RAM1$$ZI$$Limit
+#else
+    extern int __bss_end;
+    #define BOARD_HEAP_START    ((void *)&__bss_end)
+#endif
+
+#define BOARD_SDRAM_START   0x0
+#define BOARD_SDRAM_SIZE    0x04000000
+#define BOARD_HEAP_END      ((void*)BOARD_SDRAM_SIZE)
+
+#if defined(RT_USING_MTD_NAND)
+    #include <drivers/mtd_nand.h>
+    #define MTD_SPINAND_PARTITION_NUM 3
+    extern struct rt_mtd_nand_device mtd_partitions[MTD_SPINAND_PARTITION_NUM];
+#endif
+
+extern void rt_hw_board_init(void);
+extern void nu_clock_init(void);
+extern void nu_clock_deinit(void);
+extern void nu_pin_init(void);
+extern void nu_pin_deinit(void);
+
+#endif /* BOARD_H_ */
diff --git a/bsp/nuvoton/nk-rtu980/board/board_dev.c b/bsp/nuvoton/nk-rtu980/board/board_dev.c
new file mode 100644
index 0000000000..0086fe4595
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/board/board_dev.c
@@ -0,0 +1,236 @@
+/**************************************************************************//**
+*
+* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
+*
+* SPDX-License-Identifier: Apache-2.0
+*
+* Change Logs:
+* Date            Author       Notes
+* 2020-12-12      Wayne        First version
+*
+******************************************************************************/
+
+#include <rtconfig.h>
+#include <rtdevice.h>
+
+#if defined(BOARD_USING_STORAGE_SPIFLASH)
+#if defined(RT_USING_SFUD)
+    #include "spi_flash.h"
+    #include "spi_flash_sfud.h"
+#endif
+
+#include "drv_qspi.h"
+
+#define W25X_REG_READSTATUS    (0x05)
+#define W25X_REG_READSTATUS2   (0x35)
+#define W25X_REG_WRITEENABLE   (0x06)
+#define W25X_REG_WRITESTATUS   (0x01)
+#define W25X_REG_QUADENABLE    (0x02)
+
+static rt_uint8_t SpiFlash_ReadStatusReg(struct rt_qspi_device *qspi_device)
+{
+    rt_uint8_t u8Val;
+    rt_err_t result = RT_EOK;
+    rt_uint8_t w25x_txCMD1 = W25X_REG_READSTATUS;
+
+    result = rt_qspi_send_then_recv(qspi_device, &w25x_txCMD1, 1, &u8Val, 1);
+    RT_ASSERT(result > 0);
+
+    return u8Val;
+}
+
+static rt_uint8_t SpiFlash_ReadStatusReg2(struct rt_qspi_device *qspi_device)
+{
+    rt_uint8_t u8Val;
+    rt_err_t result = RT_EOK;
+    rt_uint8_t w25x_txCMD1 = W25X_REG_READSTATUS2;
+
+    result = rt_qspi_send_then_recv(qspi_device, &w25x_txCMD1, 1, &u8Val, 1);
+    RT_ASSERT(result > 0);
+
+    return u8Val;
+}
+
+static rt_err_t SpiFlash_WriteStatusReg(struct rt_qspi_device *qspi_device, uint8_t u8Value1, uint8_t u8Value2)
+{
+    rt_uint8_t w25x_txCMD1;
+    rt_uint8_t au8Val[2];
+    rt_err_t result;
+    struct rt_qspi_message qspi_message = {0};
+
+    /* Enable WE */
+    w25x_txCMD1 = W25X_REG_WRITEENABLE;
+    result = rt_qspi_send(qspi_device, &w25x_txCMD1, sizeof(w25x_txCMD1));
+    if (result != sizeof(w25x_txCMD1))
+        goto exit_SpiFlash_WriteStatusReg;
+
+    /* Prepare status-1, 2 data */
+    au8Val[0] = u8Value1;
+    au8Val[1] = u8Value2;
+
+    /* 1-bit mode: Instruction+payload */
+    qspi_message.instruction.content = W25X_REG_WRITESTATUS;
+    qspi_message.instruction.qspi_lines = 1;
+
+    qspi_message.qspi_data_lines   = 1;
+    qspi_message.parent.cs_take    = 1;
+    qspi_message.parent.cs_release = 1;
+    qspi_message.parent.send_buf   = &au8Val[0];
+    qspi_message.parent.length     = sizeof(au8Val);
+    qspi_message.parent.next       = RT_NULL;
+
+    if (rt_qspi_transfer_message(qspi_device, &qspi_message) != sizeof(au8Val))
+    {
+        result = -RT_ERROR;
+    }
+
+    result  = RT_EOK;
+
+exit_SpiFlash_WriteStatusReg:
+
+    return result;
+}
+
+static void SpiFlash_WaitReady(struct rt_qspi_device *qspi_device)
+{
+    volatile uint8_t u8ReturnValue;
+
+    do
+    {
+        u8ReturnValue = SpiFlash_ReadStatusReg(qspi_device);
+        u8ReturnValue = u8ReturnValue & 1;
+    }
+    while (u8ReturnValue != 0);   // check the BUSY bit
+}
+
+static void SpiFlash_EnterQspiMode(struct rt_qspi_device *qspi_device)
+{
+    rt_err_t result = RT_EOK;
+
+    uint8_t u8Status1 = SpiFlash_ReadStatusReg(qspi_device);
+    uint8_t u8Status2 = SpiFlash_ReadStatusReg2(qspi_device);
+
+    u8Status2 |= W25X_REG_QUADENABLE;
+
+    result = SpiFlash_WriteStatusReg(qspi_device, u8Status1, u8Status2);
+    RT_ASSERT(result == RT_EOK);
+
+    SpiFlash_WaitReady(qspi_device);
+}
+
+static void SpiFlash_ExitQspiMode(struct rt_qspi_device *qspi_device)
+{
+    rt_err_t result = RT_EOK;
+    uint8_t u8Status1 = SpiFlash_ReadStatusReg(qspi_device);
+    uint8_t u8Status2 = SpiFlash_ReadStatusReg2(qspi_device);
+
+    u8Status2 &= ~W25X_REG_QUADENABLE;
+
+    result = SpiFlash_WriteStatusReg(qspi_device, u8Status1, u8Status2);
+    RT_ASSERT(result == RT_EOK);
+
+    SpiFlash_WaitReady(qspi_device);
+}
+
+static int rt_hw_spiflash_init(void)
+{
+    if (nu_qspi_bus_attach_device("qspi0", "qspi01", 2, SpiFlash_EnterQspiMode, SpiFlash_ExitQspiMode) != RT_EOK)
+        return -1;
+
+#if defined(RT_USING_SFUD)
+    if (rt_sfud_flash_probe(FAL_USING_NOR_FLASH_DEV_NAME, "qspi01") == RT_NULL)
+    {
+        return -(RT_ERROR);
+    }
+#endif
+    return 0;
+}
+INIT_COMPONENT_EXPORT(rt_hw_spiflash_init);
+#endif
+
+#if defined(BOARD_USING_STORAGE_SPINAND) && defined(NU_PKG_USING_SPINAND)
+
+#include "drv_qspi.h"
+#include "spinand.h"
+
+struct rt_mtd_nand_device mtd_partitions[MTD_SPINAND_PARTITION_NUM] =
+{
+    [0] =
+    {
+        .block_start =  0,
+        .block_end   = 23,
+        .block_total = 24,
+    },
+    [1] =
+    {
+        .block_start = 24,
+        .block_end   = 1023,
+        .block_total = 1000,
+    },
+    [2] =
+    {
+        .block_start = 0,
+        .block_end   = 1023,
+        .block_total = 1024,
+    }
+};
+
+static int rt_hw_spinand_init(void)
+{
+    if (nu_qspi_bus_attach_device("qspi0", "qspi01", 4, RT_NULL, RT_NULL) != RT_EOK)
+        return -1;
+
+    if (rt_hw_mtd_spinand_register("qspi01") != RT_EOK)
+        return -1;
+
+    return 0;
+}
+
+INIT_COMPONENT_EXPORT(rt_hw_spinand_init);
+#endif
+
+#if defined(BOARD_USING_UART8_RS485)
+
+#include <drv_uart.h>
+
+#define NU_UART_DEVNAME "uart8"
+
+int test_rs485(int argc, char **argv)
+{
+    rt_device_t serial;
+    char txbuf[16];
+    rt_err_t ret;
+    int str_len;
+
+    serial = rt_device_find(NU_UART_DEVNAME);
+    if (!serial)
+    {
+        rt_kprintf("Can't find %s. EXIT.\n", NU_UART_DEVNAME);
+        goto exit_test_rs485;
+    }
+
+    /* Interrupt RX */
+    ret = rt_device_open(serial, RT_DEVICE_FLAG_INT_RX);
+    RT_ASSERT(ret == RT_EOK);
+
+    /* Nuvoton private command */
+    nu_uart_set_rs485aud((struct rt_serial_device *)serial, RT_FALSE);
+
+    rt_snprintf(&txbuf[0], sizeof(txbuf), "Hello World!\r\n");
+    str_len = rt_strlen(txbuf);
+
+    /* Say Hello */
+    ret = rt_device_write(serial, 0, &txbuf[0], str_len);
+    RT_ASSERT(ret == str_len);
+
+    ret = rt_device_close(serial);
+    RT_ASSERT(ret == RT_EOK);
+
+exit_test_rs485:
+
+    return 0;
+}
+MSH_CMD_EXPORT(test_rs485, test rs485 communication);
+
+#endif //defined(BOARD_USING_UART8_RS485)
+
diff --git a/bsp/nuvoton/nk-rtu980/board/fal_cfg.h b/bsp/nuvoton/nk-rtu980/board/fal_cfg.h
new file mode 100644
index 0000000000..99ee81b405
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/board/fal_cfg.h
@@ -0,0 +1,46 @@
+/**************************************************************************//**
+*
+* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
+*
+* SPDX-License-Identifier: Apache-2.0
+*
+* Change Logs:
+* Date            Author       Notes
+* 2020-3-03       FYChou       First version
+*
+******************************************************************************/
+
+#ifndef _FAL_CFG_H_
+#define _FAL_CFG_H_
+
+#include <rtconfig.h>
+#include <board.h>
+
+/* ===================== Flash device Configuration ========================= */
+#if defined(RT_USING_SFUD)
+extern struct fal_flash_dev nor_flash0;
+
+/* -flash device table------------------------------------------------------- */
+#define FAL_FLASH_DEV_TABLE                                                    \
+{                                                                              \
+    &nor_flash0,                                                               \
+}
+#else
+#define FAL_FLASH_DEV_TABLE                                                    \
+{                                                                              \
+    0                                                                          \
+}
+#endif
+
+/* ====================== Partition Configuration ============================ */
+#ifdef FAL_PART_HAS_TABLE_CFG
+
+/* partition table------------------------------------------------------------ */
+#define FAL_PART_TABLE                                                         \
+{                                                                              \
+    {FAL_PART_MAGIC_WORD, "rtthread",   FAL_USING_NOR_FLASH_DEV_NAME,           0,  4*1024*1024, 0}, \
+    {FAL_PART_MAGIC_WORD, "filesystem", FAL_USING_NOR_FLASH_DEV_NAME, 4*1024*1024, 28*1024*1024, 0}, \
+}
+#endif /* FAL_PART_HAS_TABLE_CFG */
+
+#endif /* _FAL_CFG_H_ */
diff --git a/bsp/nuvoton/nk-rtu980/board/nu_pin_init.c b/bsp/nuvoton/nk-rtu980/board/nu_pin_init.c
new file mode 100644
index 0000000000..af36b98ccd
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/board/nu_pin_init.c
@@ -0,0 +1,85 @@
+/**************************************************************************//**
+*
+* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
+*
+* SPDX-License-Identifier: Apache-2.0
+*
+* Change Logs:
+* Date            Author       Notes
+* 2020-12-12      Wayne        First version
+*
+******************************************************************************/
+
+#include "board.h"
+
+static void nu_pin_uart_init(void)
+{
+    /* UART0: GPF11, GPF12 */
+    outpw(REG_SYS_GPF_MFPH, (inpw(REG_SYS_GPF_MFPH) & 0xFFF00FFF) | 0x00011000);
+
+    /* UART4: GPC9, GPC10 */
+    outpw(REG_SYS_GPC_MFPH, (inpw(REG_SYS_GPC_MFPH) & 0xFFFFF00F) | 0x00000770);
+
+    /* UART8: GPC12, GPC13, GPC14 */
+    outpw(REG_SYS_GPC_MFPH, (inpw(REG_SYS_GPC_MFPH) & 0xF000FFFF) | 0x07770000);
+}
+
+static void nu_pin_emac_init(void)
+{
+    /* EMAC1  */
+    outpw(REG_SYS_GPF_MFPL, 0x11111111);
+    outpw(REG_SYS_GPF_MFPH, (inpw(REG_SYS_GPF_MFPH) & 0xFFFFFF00) | 0x00000011);
+}
+
+static void nu_pin_qspi_init(void)
+{
+    /* QSPI0: PD[2, 5]  */
+    outpw(REG_SYS_GPD_MFPL, (inpw(REG_SYS_GPD_MFPL) & 0xFF0000FF) | 0x00111100);
+}
+
+static void nu_pin_spi_init(void)
+{
+    /* SPI0: PC[4, 8]  */
+    outpw(REG_SYS_GPC_MFPL, (inpw(REG_SYS_GPC_MFPL) & 0xF000FFFF) | 0x05560000);
+    outpw(REG_SYS_GPC_MFPH, (inpw(REG_SYS_GPC_MFPH) & 0xFFFFFFF0) | 0x00000005);
+}
+
+static void nu_pin_i2c_init(void)
+{
+    /* I2C1: PB4, PB6 */
+    outpw(REG_SYS_GPB_MFPL, (inpw(REG_SYS_GPB_MFPL) & 0xF0F0FFFF) | 0x02020000);
+}
+
+static void nu_pin_can_init(void)
+{
+    /* CAN3: PA0, PA1 */
+    outpw(REG_SYS_GPA_MFPL, (inpw(REG_SYS_GPA_MFPL) & 0xFFFFFF00) | 0x00000077);
+}
+
+static void nu_pin_usbd_init(void)
+{
+    /* USB0_VBUSVLD, PE.11  */
+    outpw(REG_SYS_GPE_MFPH, (inpw(REG_SYS_GPE_MFPH) & 0xFFFF0FFF) | 0x00001000);
+}
+
+static void nu_pin_usbh_init(void)
+{
+}
+
+void nu_pin_init(void)
+{
+    nu_pin_uart_init();
+    nu_pin_emac_init();
+    nu_pin_qspi_init();
+    nu_pin_spi_init();
+    nu_pin_i2c_init();
+    nu_pin_can_init();
+
+    nu_pin_usbd_init();
+    nu_pin_usbh_init();
+}
+
+void nu_pin_deinit(void)
+{
+
+}
diff --git a/bsp/nuvoton/nk-rtu980/linking_scripts/nuc980.ld b/bsp/nuvoton/nk-rtu980/linking_scripts/nuc980.ld
new file mode 100644
index 0000000000..1004f039fb
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/linking_scripts/nuc980.ld
@@ -0,0 +1,114 @@
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(system_vectors)
+
+MEMORY
+{
+    RAM  (rwx)   : ORIGIN = 0x000000, LENGTH = 0x04000000
+}
+
+SECTIONS
+{
+    . = 0x0;
+
+    . = ALIGN(4);
+    .text : 
+    {
+        *(.vectors)
+        *(.text)
+        *(.gnu.linkonce.t*)
+        
+        /* section information for finsh shell */
+        . = ALIGN(4);
+        __fsymtab_start = .;
+        KEEP(*(FSymTab))
+        __fsymtab_end = .;
+        . = ALIGN(4);
+        __vsymtab_start = .;
+        KEEP(*(VSymTab))
+        __vsymtab_end = .;
+        . = ALIGN(4);   
+
+        . = ALIGN(4);
+        __rt_init_start = .;
+        KEEP(*(SORT(.rti_fn*)))
+        __rt_init_end = .;
+        . = ALIGN(4);
+
+        /* section information for modules */
+        . = ALIGN(4);
+        __rtmsymtab_start = .;
+        KEEP(*(RTMSymTab))
+        __rtmsymtab_end = .;
+        . = ALIGN(4);
+
+        /* section information for initial. */
+        . = ALIGN(4);
+        __rt_init_start = .;
+        KEEP(*(SORT(.rti_fn*)))
+        __rt_init_end = .;
+        . = ALIGN(4);
+
+        /* section information for utest */
+        . = ALIGN(4);
+        __rt_utest_tc_tab_start = .;
+        KEEP(*(UtestTcTab))
+        __rt_utest_tc_tab_end = .;
+    }
+
+    . = ALIGN(4);
+    .rodata : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r*) *(.eh_frame) }
+
+    . = ALIGN(4);
+    .ctors :
+    {
+        PROVIDE(__ctors_start__ = .);
+        KEEP(*(SORT(.ctors.*)))
+        KEEP(*(.ctors))
+        PROVIDE(__ctors_end__ = .);
+    }
+
+    .dtors :
+    {
+        PROVIDE(__dtors_start__ = .);
+        KEEP(*(SORT(.dtors.*)))
+        KEEP(*(.dtors))
+        PROVIDE(__dtors_end__ = .);
+    }
+
+    . = ALIGN(4);
+    .data :
+    {
+        *(.data)
+        *(.data.*)
+        *(.gnu.linkonce.d*)
+    }
+
+    . = ALIGN(4);
+    .nobss : { *(.nobss) }
+    
+    . = ALIGN(4);
+    __bss_start__ = .;
+    __bss_start = .;
+    .bss : { *(.bss)}
+    . = ALIGN(4);
+    __bss_end = .;
+    __bss_end__ = .;
+    . = ALIGN(4);
+
+    /* stabs debugging sections. */
+    .stab 0 : { *(.stab) }
+    .stabstr 0 : { *(.stabstr) }
+    .stab.excl 0 : { *(.stab.excl) }
+    .stab.exclstr 0 : { *(.stab.exclstr) }
+    .stab.index 0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment 0 : { *(.comment) }
+    .debug_abbrev 0 : { *(.debug_abbrev) }
+    .debug_info 0 : { *(.debug_info) }
+    .debug_line 0 : { *(.debug_line) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    .debug_aranges 0 : { *(.debug_aranges) }
+
+    _end = .;
+}
diff --git a/bsp/nuvoton/nk-rtu980/linking_scripts/nuc980.sct b/bsp/nuvoton/nk-rtu980/linking_scripts/nuc980.sct
new file mode 100644
index 0000000000..114b346e8c
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/linking_scripts/nuc980.sct
@@ -0,0 +1,11 @@
+LR_IROM1 0x00000000 0x800000  {    ; load region size_region
+    ER_IROM1 0x00000000 0x800000  {  ; load address = execution address
+        *.o (RESET, +First)
+        *(InRoot$$Sections)
+        .ANY (+RO)
+    }
+    RW_RAM1 +0  {  ; RW_RAM1 start address is after ER_ROM1
+        .ANY (+RW +ZI)
+    }
+}
+
diff --git a/bsp/nuvoton/nk-rtu980/rtconfig.py b/bsp/nuvoton/nk-rtu980/rtconfig.py
new file mode 100644
index 0000000000..c246b656ad
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/rtconfig.py
@@ -0,0 +1,88 @@
+import os
+# toolchains options
+ARCH     = 'arm'
+CPU      = 'arm926'
+# toolchains options
+CROSS_TOOL 	= 'gcc'
+
+#------- toolchains path -------------------------------------------------------
+if os.getenv('RTT_CC'):
+	CROSS_TOOL = os.getenv('RTT_CC')
+
+if  CROSS_TOOL == 'gcc':
+	PLATFORM = 'gcc'
+	EXEC_PATH = r'C:\Program Files (x86)\GNU Tools ARM Embedded\6 2017-q1-update\bin'
+elif CROSS_TOOL == 'keil':
+	PLATFORM 	= 'armcc'
+	EXEC_PATH 	= r'C:\Keil_v5'
+
+if os.getenv('RTT_EXEC_PATH'):
+	EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+
+BUILD = 'debug'
+#BUILD = 'release'
+
+CORE = 'arm926ej-s'
+MAP_FILE = 'rtthread_nuc980.map'
+LINK_FILE = 'linking_scripts/nuc980'
+TARGET_NAME = 'rtthread.bin'
+
+#------- GCC settings ----------------------------------------------------------
+if PLATFORM == 'gcc':
+    # toolchains
+    PREFIX = 'arm-none-eabi-'
+    CC = PREFIX + 'gcc'
+    CXX = PREFIX + 'g++'
+    AS = PREFIX + 'gcc'
+    AR = PREFIX + 'ar'
+    LINK = PREFIX + 'gcc'
+    TARGET_EXT = 'elf'
+    SIZE = PREFIX + 'size'
+    OBJDUMP = PREFIX + 'objdump'
+    OBJCPY = PREFIX + 'objcopy'
+
+    DEVICE = ' -mcpu=arm926ej-s'
+    CFLAGS = DEVICE
+    AFLAGS = '-c'+ DEVICE + ' -x assembler-with-cpp'
+    AFLAGS += ' -Iplatform'
+    LFLAGS = DEVICE
+    LFLAGS += ' -Wl,--gc-sections,-cref,-Map=' + MAP_FILE
+    LFLAGS += ' -T ' + LINK_FILE + '.ld'
+
+    CPATH = ''
+    LPATH = ''
+
+    if BUILD == 'debug':
+        CFLAGS += ' -O2 -gdwarf-2'
+        AFLAGS += ' -gdwarf-2'
+    else:
+        CFLAGS += ' -O2'
+
+    POST_ACTION = OBJCPY + ' -O binary $TARGET ' + TARGET_NAME + '\n' 
+    POST_ACTION += SIZE + ' $TARGET\n'
+#------- Keil settings ---------------------------------------------------------
+elif PLATFORM == 'armcc':
+    # toolchains
+    CC = 'armcc'
+    AS = 'armasm'
+    AR = 'armar'
+    LINK = 'armlink'
+    TARGET_EXT = 'axf'
+    EXEC_PATH += '/arm/armcc/bin/'
+
+    DEVICE = ' --cpu=' + CORE
+    CFLAGS = DEVICE + ' --apcs=interwork --diag_suppress=870'
+    AFLAGS = DEVICE + ' -Iplatform'
+    LFLAGS = DEVICE + ' --strict'
+    LFLAGS += ' --info sizes --info totals --info unused --info veneers'
+    LFLAGS += ' --list ' + MAP_FILE
+    LFLAGS += ' --scatter  ' + LINK_FILE + '.sct'
+
+    if BUILD == 'debug':
+        CFLAGS += ' -g -O0'
+        AFLAGS += ' -g'
+    else:
+        CFLAGS += ' -O2'
+
+    POST_ACTION = 'fromelf --bin $TARGET --output ' + TARGET_NAME + ' \n'
+    POST_ACTION += 'fromelf -z $TARGET\n'
\ No newline at end of file
diff --git a/bsp/nuvoton/nk-rtu980/template.uvproj b/bsp/nuvoton/nk-rtu980/template.uvproj
new file mode 100644
index 0000000000..23e8dd2bcb
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/template.uvproj
@@ -0,0 +1,394 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_proj.xsd">
+
+  <SchemaVersion>1.1</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Targets>
+    <Target>
+      <TargetName>rtthread</TargetName>
+      <ToolsetNumber>0x4</ToolsetNumber>
+      <ToolsetName>ARM-ADS</ToolsetName>
+      <TargetOption>
+        <TargetCommonOption>
+          <Device>Nuvoton_ARM9_Series</Device>
+          <Vendor>Nuvoton</Vendor>
+          <Cpu></Cpu>
+          <FlashUtilSpec></FlashUtilSpec>
+          <StartupFile></StartupFile>
+          <FlashDriverDll></FlashDriverDll>
+          <DeviceId>0</DeviceId>
+          <RegisterFile></RegisterFile>
+          <MemoryEnv></MemoryEnv>
+          <Cmp></Cmp>
+          <Asm></Asm>
+          <Linker></Linker>
+          <OHString></OHString>
+          <InfinionOptionDll></InfinionOptionDll>
+          <SLE66CMisc></SLE66CMisc>
+          <SLE66AMisc></SLE66AMisc>
+          <SLE66LinkerMisc></SLE66LinkerMisc>
+          <SFDFile></SFDFile>
+          <UseEnv>0</UseEnv>
+          <BinPath></BinPath>
+          <IncludePath></IncludePath>
+          <LibPath></LibPath>
+          <RegisterFilePath>Atmel\SAM9260\</RegisterFilePath>
+          <DBRegisterFilePath>Atmel\SAM9260\</DBRegisterFilePath>
+          <TargetStatus>
+            <Error>0</Error>
+            <ExitCodeStop>0</ExitCodeStop>
+            <ButtonStop>0</ButtonStop>
+            <NotGenerated>0</NotGenerated>
+            <InvalidFlash>1</InvalidFlash>
+          </TargetStatus>
+          <OutputDirectory>.\Objects\</OutputDirectory>
+          <OutputName>rtthread</OutputName>
+          <CreateExecutable>1</CreateExecutable>
+          <CreateLib>0</CreateLib>
+          <CreateHexFile>0</CreateHexFile>
+          <DebugInformation>1</DebugInformation>
+          <BrowseInformation>1</BrowseInformation>
+          <ListingPath>.\Listings\</ListingPath>
+          <HexFormatSelection>1</HexFormatSelection>
+          <Merge32K>0</Merge32K>
+          <CreateBatchFile>0</CreateBatchFile>
+          <BeforeCompile>
+            <RunUserProg1>0</RunUserProg1>
+            <RunUserProg2>0</RunUserProg2>
+            <UserProg1Name></UserProg1Name>
+            <UserProg2Name></UserProg2Name>
+            <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+            <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+            <nStopU1X>0</nStopU1X>
+            <nStopU2X>0</nStopU2X>
+          </BeforeCompile>
+          <BeforeMake>
+            <RunUserProg1>0</RunUserProg1>
+            <RunUserProg2>0</RunUserProg2>
+            <UserProg1Name></UserProg1Name>
+            <UserProg2Name></UserProg2Name>
+            <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+            <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+          </BeforeMake>
+          <AfterMake>
+            <RunUserProg1>0</RunUserProg1>
+            <RunUserProg2>0</RunUserProg2>
+            <UserProg1Name></UserProg1Name>
+            <UserProg2Name></UserProg2Name>
+            <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+            <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+          </AfterMake>
+          <SelectedForBatchBuild>0</SelectedForBatchBuild>
+          <SVCSIdString></SVCSIdString>
+        </TargetCommonOption>
+        <CommonProperty>
+          <UseCPPCompiler>0</UseCPPCompiler>
+          <RVCTCodeConst>0</RVCTCodeConst>
+          <RVCTZI>0</RVCTZI>
+          <RVCTOtherData>0</RVCTOtherData>
+          <ModuleSelection>0</ModuleSelection>
+          <IncludeInBuild>1</IncludeInBuild>
+          <AlwaysBuild>0</AlwaysBuild>
+          <GenerateAssemblyFile>0</GenerateAssemblyFile>
+          <AssembleAssemblyFile>0</AssembleAssemblyFile>
+          <PublicsOnly>0</PublicsOnly>
+          <StopOnExitCode>3</StopOnExitCode>
+          <CustomArgument></CustomArgument>
+          <IncludeLibraryModules></IncludeLibraryModules>
+        </CommonProperty>
+        <DllOption>
+          <SimDllName>SARM.DLL</SimDllName>
+          <SimDllArguments>-cAT91SAM9</SimDllArguments>
+          <SimDlgDll>DARMATS9.DLL</SimDlgDll>
+          <SimDlgDllArguments>-p91SAM9260</SimDlgDllArguments>
+          <TargetDllName>SARM.DLL</TargetDllName>
+          <TargetDllArguments></TargetDllArguments>
+          <TargetDlgDll>TARMATS9.DLL</TargetDlgDll>
+          <TargetDlgDllArguments>-p91SAM9260</TargetDlgDllArguments>
+        </DllOption>
+        <DebugOption>
+          <OPTHX>
+            <HexSelection>1</HexSelection>
+            <HexRangeLowAddress>0</HexRangeLowAddress>
+            <HexRangeHighAddress>0</HexRangeHighAddress>
+            <HexOffset>0</HexOffset>
+            <Oh166RecLen>16</Oh166RecLen>
+          </OPTHX>
+          <Simulator>
+            <UseSimulator>0</UseSimulator>
+            <LoadApplicationAtStartup>1</LoadApplicationAtStartup>
+            <RunToMain>1</RunToMain>
+            <RestoreBreakpoints>1</RestoreBreakpoints>
+            <RestoreWatchpoints>1</RestoreWatchpoints>
+            <RestoreMemoryDisplay>1</RestoreMemoryDisplay>
+            <RestoreFunctions>1</RestoreFunctions>
+            <RestoreToolbox>1</RestoreToolbox>
+            <LimitSpeedToRealTime>0</LimitSpeedToRealTime>
+          </Simulator>
+          <Target>
+            <UseTarget>1</UseTarget>
+            <LoadApplicationAtStartup>0</LoadApplicationAtStartup>
+            <RunToMain>0</RunToMain>
+            <RestoreBreakpoints>1</RestoreBreakpoints>
+            <RestoreWatchpoints>1</RestoreWatchpoints>
+            <RestoreMemoryDisplay>1</RestoreMemoryDisplay>
+            <RestoreFunctions>0</RestoreFunctions>
+            <RestoreToolbox>1</RestoreToolbox>
+            <RestoreTracepoints>1</RestoreTracepoints>
+          </Target>
+          <RunDebugAfterBuild>0</RunDebugAfterBuild>
+          <TargetSelection>6</TargetSelection>
+          <SimDlls>
+            <CpuDll></CpuDll>
+            <CpuDllArguments></CpuDllArguments>
+            <PeripheralDll></PeripheralDll>
+            <PeripheralDllArguments></PeripheralDllArguments>
+            <InitializationFile></InitializationFile>
+          </SimDlls>
+          <TargetDlls>
+            <CpuDll></CpuDll>
+            <CpuDllArguments></CpuDllArguments>
+            <PeripheralDll></PeripheralDll>
+            <PeripheralDllArguments></PeripheralDllArguments>
+            <InitializationFile>..\libraries\nuc980\Script\NUC980xx61.ini</InitializationFile>
+            <Driver>Segger\JLTAgdi.dll</Driver>
+          </TargetDlls>
+        </DebugOption>
+        <Utilities>
+          <Flash1>
+            <UseTargetDll>1</UseTargetDll>
+            <UseExternalTool>0</UseExternalTool>
+            <RunIndependent>0</RunIndependent>
+            <UpdateFlashBeforeDebugging>0</UpdateFlashBeforeDebugging>
+            <Capability>1</Capability>
+            <DriverSelection>4098</DriverSelection>
+          </Flash1>
+          <bUseTDR>0</bUseTDR>
+          <Flash2>Segger\JLTAgdi.dll</Flash2>
+          <Flash3>"" ()</Flash3>
+          <Flash4></Flash4>
+        </Utilities>
+        <TargetArmAds>
+          <ArmAdsMisc>
+            <GenerateListings>0</GenerateListings>
+            <asHll>1</asHll>
+            <asAsm>1</asAsm>
+            <asMacX>1</asMacX>
+            <asSyms>1</asSyms>
+            <asFals>1</asFals>
+            <asDbgD>1</asDbgD>
+            <asForm>1</asForm>
+            <ldLst>0</ldLst>
+            <ldmm>1</ldmm>
+            <ldXref>1</ldXref>
+            <BigEnd>0</BigEnd>
+            <AdsALst>1</AdsALst>
+            <AdsACrf>1</AdsACrf>
+            <AdsANop>0</AdsANop>
+            <AdsANot>0</AdsANot>
+            <AdsLLst>1</AdsLLst>
+            <AdsLmap>1</AdsLmap>
+            <AdsLcgr>1</AdsLcgr>
+            <AdsLsym>1</AdsLsym>
+            <AdsLszi>1</AdsLszi>
+            <AdsLtoi>1</AdsLtoi>
+            <AdsLsun>1</AdsLsun>
+            <AdsLven>1</AdsLven>
+            <AdsLsxf>1</AdsLsxf>
+            <RvctClst>0</RvctClst>
+            <GenPPlst>0</GenPPlst>
+            <AdsCpuType></AdsCpuType>
+            <RvctDeviceName></RvctDeviceName>
+            <mOS>0</mOS>
+            <uocRom>0</uocRom>
+            <uocRam>0</uocRam>
+            <hadIROM>0</hadIROM>
+            <hadIRAM>0</hadIRAM>
+            <hadXRAM>0</hadXRAM>
+            <uocXRam>0</uocXRam>
+            <RvdsVP>0</RvdsVP>
+            <hadIRAM2>0</hadIRAM2>
+            <hadIROM2>0</hadIROM2>
+            <StupSel>0</StupSel>
+            <useUlib>0</useUlib>
+            <EndSel>0</EndSel>
+            <uLtcg>0</uLtcg>
+            <RoSelD>3</RoSelD>
+            <RwSelD>3</RwSelD>
+            <CodeSel>0</CodeSel>
+            <OptFeed>0</OptFeed>
+            <NoZi1>0</NoZi1>
+            <NoZi2>0</NoZi2>
+            <NoZi3>0</NoZi3>
+            <NoZi4>0</NoZi4>
+            <NoZi5>0</NoZi5>
+            <Ro1Chk>0</Ro1Chk>
+            <Ro2Chk>0</Ro2Chk>
+            <Ro3Chk>0</Ro3Chk>
+            <Ir1Chk>0</Ir1Chk>
+            <Ir2Chk>0</Ir2Chk>
+            <Ra1Chk>0</Ra1Chk>
+            <Ra2Chk>0</Ra2Chk>
+            <Ra3Chk>0</Ra3Chk>
+            <Im1Chk>0</Im1Chk>
+            <Im2Chk>0</Im2Chk>
+            <OnChipMemories>
+              <Ocm1>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm1>
+              <Ocm2>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm2>
+              <Ocm3>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm3>
+              <Ocm4>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm4>
+              <Ocm5>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm5>
+              <Ocm6>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm6>
+              <IRAM>
+                <Type>0</Type>
+                <StartAddress>0x200000</StartAddress>
+                <Size>0x1000</Size>
+              </IRAM>
+              <IROM>
+                <Type>1</Type>
+                <StartAddress>0x100000</StartAddress>
+                <Size>0x8000</Size>
+              </IROM>
+              <XRAM>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </XRAM>
+              <OCR_RVCT1>
+                <Type>1</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT1>
+              <OCR_RVCT2>
+                <Type>1</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT2>
+              <OCR_RVCT3>
+                <Type>1</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT3>
+              <OCR_RVCT4>
+                <Type>1</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT4>
+              <OCR_RVCT5>
+                <Type>1</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT5>
+              <OCR_RVCT6>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT6>
+              <OCR_RVCT7>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT7>
+              <OCR_RVCT8>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT8>
+              <OCR_RVCT9>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT9>
+              <OCR_RVCT10>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT10>
+            </OnChipMemories>
+            <RvctStartVector></RvctStartVector>
+          </ArmAdsMisc>
+          <Cads>
+            <interw>1</interw>
+            <Optim>3</Optim>
+            <oTime>0</oTime>
+            <SplitLS>0</SplitLS>
+            <OneElfS>0</OneElfS>
+            <Strict>0</Strict>
+            <EnumInt>0</EnumInt>
+            <PlainCh>0</PlainCh>
+            <Ropi>0</Ropi>
+            <Rwpi>0</Rwpi>
+            <wLevel>2</wLevel>
+            <uThumb>0</uThumb>
+            <uSurpInc>0</uSurpInc>
+            <VariousControls>
+              <MiscControls>--c99</MiscControls>
+              <Define>RT_USING_INTERRUPT_INFO</Define>
+              <Undefine></Undefine>
+              <IncludePath></IncludePath>
+            </VariousControls>
+          </Cads>
+          <Aads>
+            <interw>1</interw>
+            <Ropi>0</Ropi>
+            <Rwpi>0</Rwpi>
+            <thumb>0</thumb>
+            <SplitLS>0</SplitLS>
+            <SwStkChk>0</SwStkChk>
+            <NoWarn>0</NoWarn>
+            <uSurpInc>0</uSurpInc>
+            <VariousControls>
+              <MiscControls></MiscControls>
+              <Define></Define>
+              <Undefine></Undefine>
+              <IncludePath></IncludePath>
+            </VariousControls>
+          </Aads>
+          <LDads>
+            <umfTarg>0</umfTarg>
+            <Ropi>0</Ropi>
+            <Rwpi>0</Rwpi>
+            <noStLib>0</noStLib>
+            <RepFail>1</RepFail>
+            <useFile>0</useFile>
+            <TextAddressRange>0x20000000</TextAddressRange>
+            <DataAddressRange>0x20800000</DataAddressRange>
+            <ScatterFile>.\linking_scripts\nuc980.sct</ScatterFile>
+            <IncludeLibs></IncludeLibs>
+            <IncludeLibsPath></IncludeLibsPath>
+            <Misc></Misc>
+            <LinkerInputFile></LinkerInputFile>
+            <DisabledWarnings></DisabledWarnings>
+          </LDads>
+        </TargetArmAds>
+      </TargetOption>
+    </Target>
+  </Targets>
+
+</Project>
diff --git a/bsp/nuvoton/nk-rtu980/template.uvprojx b/bsp/nuvoton/nk-rtu980/template.uvprojx
new file mode 100644
index 0000000000..aad158ccc3
--- /dev/null
+++ b/bsp/nuvoton/nk-rtu980/template.uvprojx
@@ -0,0 +1,387 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_projx.xsd">
+
+  <SchemaVersion>2.1</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Targets>
+    <Target>
+      <TargetName>rtthread</TargetName>
+      <ToolsetNumber>0x4</ToolsetNumber>
+      <ToolsetName>ARM-ADS</ToolsetName>
+      <uAC6>0</uAC6>
+      <TargetOption>
+        <TargetCommonOption>
+          <Device>Nuvoton_ARM9_Series</Device>
+          <Vendor>Nuvoton</Vendor>
+          <Cpu></Cpu>
+          <FlashUtilSpec></FlashUtilSpec>
+          <StartupFile></StartupFile>
+          <FlashDriverDll></FlashDriverDll>
+          <DeviceId>0</DeviceId>
+          <RegisterFile></RegisterFile>
+          <MemoryEnv></MemoryEnv>
+          <Cmp></Cmp>
+          <Asm></Asm>
+          <Linker></Linker>
+          <OHString></OHString>
+          <InfinionOptionDll></InfinionOptionDll>
+          <SLE66CMisc></SLE66CMisc>
+          <SLE66AMisc></SLE66AMisc>
+          <SLE66LinkerMisc></SLE66LinkerMisc>
+          <SFDFile></SFDFile>
+          <bCustSvd>0</bCustSvd>
+          <UseEnv>0</UseEnv>
+          <BinPath></BinPath>
+          <IncludePath></IncludePath>
+          <LibPath></LibPath>
+          <RegisterFilePath>Atmel\SAM9260\</RegisterFilePath>
+          <DBRegisterFilePath>Atmel\SAM9260\</DBRegisterFilePath>
+          <TargetStatus>
+            <Error>0</Error>
+            <ExitCodeStop>0</ExitCodeStop>
+            <ButtonStop>0</ButtonStop>
+            <NotGenerated>0</NotGenerated>
+            <InvalidFlash>1</InvalidFlash>
+          </TargetStatus>
+          <OutputDirectory>.\build\keil5\</OutputDirectory>
+          <OutputName>rtthread</OutputName>
+          <CreateExecutable>1</CreateExecutable>
+          <CreateLib>0</CreateLib>
+          <CreateHexFile>1</CreateHexFile>
+          <DebugInformation>1</DebugInformation>
+          <BrowseInformation>1</BrowseInformation>
+          <ListingPath>.\build\keil5\</ListingPath>
+          <HexFormatSelection>1</HexFormatSelection>
+          <Merge32K>0</Merge32K>
+          <CreateBatchFile>0</CreateBatchFile>
+          <BeforeCompile>
+            <RunUserProg1>0</RunUserProg1>
+            <RunUserProg2>0</RunUserProg2>
+            <UserProg1Name></UserProg1Name>
+            <UserProg2Name></UserProg2Name>
+            <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+            <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+            <nStopU1X>0</nStopU1X>
+            <nStopU2X>0</nStopU2X>
+          </BeforeCompile>
+          <BeforeMake>
+            <RunUserProg1>0</RunUserProg1>
+            <RunUserProg2>0</RunUserProg2>
+            <UserProg1Name></UserProg1Name>
+            <UserProg2Name></UserProg2Name>
+            <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+            <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+            <nStopB1X>0</nStopB1X>
+            <nStopB2X>0</nStopB2X>
+          </BeforeMake>
+          <AfterMake>
+            <RunUserProg1>1</RunUserProg1>
+            <RunUserProg2>0</RunUserProg2>
+            <UserProg1Name>fromelf.exe --bin --output "$L@L.bin" "$L@L.axf"</UserProg1Name>
+            <UserProg2Name></UserProg2Name>
+            <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+            <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+            <nStopA1X>0</nStopA1X>
+            <nStopA2X>0</nStopA2X>
+          </AfterMake>
+          <SelectedForBatchBuild>0</SelectedForBatchBuild>
+          <SVCSIdString></SVCSIdString>
+        </TargetCommonOption>
+        <CommonProperty>
+          <UseCPPCompiler>0</UseCPPCompiler>
+          <RVCTCodeConst>0</RVCTCodeConst>
+          <RVCTZI>0</RVCTZI>
+          <RVCTOtherData>0</RVCTOtherData>
+          <ModuleSelection>0</ModuleSelection>
+          <IncludeInBuild>1</IncludeInBuild>
+          <AlwaysBuild>0</AlwaysBuild>
+          <GenerateAssemblyFile>0</GenerateAssemblyFile>
+          <AssembleAssemblyFile>0</AssembleAssemblyFile>
+          <PublicsOnly>0</PublicsOnly>
+          <StopOnExitCode>3</StopOnExitCode>
+          <CustomArgument></CustomArgument>
+          <IncludeLibraryModules></IncludeLibraryModules>
+          <ComprImg>1</ComprImg>
+        </CommonProperty>
+        <DllOption>
+          <SimDllName>SARM.DLL</SimDllName>
+          <SimDllArguments>-cAT91SAM9260</SimDllArguments>
+          <SimDlgDll>DARMATS9.DLL</SimDlgDll>
+          <SimDlgDllArguments>-p91SAM9260</SimDlgDllArguments>
+          <TargetDllName>SARM.DLL</TargetDllName>
+          <TargetDllArguments></TargetDllArguments>
+          <TargetDlgDll>TARMATS9.DLL</TargetDlgDll>
+          <TargetDlgDllArguments>-p91SAM9260</TargetDlgDllArguments>
+        </DllOption>
+        <DebugOption>
+          <OPTHX>
+            <HexSelection>1</HexSelection>
+            <HexRangeLowAddress>0</HexRangeLowAddress>
+            <HexRangeHighAddress>0</HexRangeHighAddress>
+            <HexOffset>0</HexOffset>
+            <Oh166RecLen>16</Oh166RecLen>
+          </OPTHX>
+        </DebugOption>
+        <Utilities>
+          <Flash1>
+            <UseTargetDll>1</UseTargetDll>
+            <UseExternalTool>0</UseExternalTool>
+            <RunIndependent>0</RunIndependent>
+            <UpdateFlashBeforeDebugging>0</UpdateFlashBeforeDebugging>
+            <Capability>1</Capability>
+            <DriverSelection>4098</DriverSelection>
+          </Flash1>
+          <bUseTDR>0</bUseTDR>
+          <Flash2>Segger\JLTAgdi.dll</Flash2>
+          <Flash3>"" ()</Flash3>
+          <Flash4></Flash4>
+          <pFcarmOut></pFcarmOut>
+          <pFcarmGrp></pFcarmGrp>
+          <pFcArmRoot></pFcArmRoot>
+          <FcArmLst>0</FcArmLst>
+        </Utilities>
+        <TargetArmAds>
+          <ArmAdsMisc>
+            <GenerateListings>0</GenerateListings>
+            <asHll>1</asHll>
+            <asAsm>1</asAsm>
+            <asMacX>1</asMacX>
+            <asSyms>1</asSyms>
+            <asFals>1</asFals>
+            <asDbgD>1</asDbgD>
+            <asForm>1</asForm>
+            <ldLst>0</ldLst>
+            <ldmm>1</ldmm>
+            <ldXref>1</ldXref>
+            <BigEnd>0</BigEnd>
+            <AdsALst>1</AdsALst>
+            <AdsACrf>1</AdsACrf>
+            <AdsANop>0</AdsANop>
+            <AdsANot>0</AdsANot>
+            <AdsLLst>1</AdsLLst>
+            <AdsLmap>1</AdsLmap>
+            <AdsLcgr>1</AdsLcgr>
+            <AdsLsym>1</AdsLsym>
+            <AdsLszi>1</AdsLszi>
+            <AdsLtoi>1</AdsLtoi>
+            <AdsLsun>1</AdsLsun>
+            <AdsLven>1</AdsLven>
+            <AdsLsxf>1</AdsLsxf>
+            <RvctClst>0</RvctClst>
+            <GenPPlst>0</GenPPlst>
+            <AdsCpuType>ARM926EJ-S</AdsCpuType>
+            <RvctDeviceName></RvctDeviceName>
+            <mOS>0</mOS>
+            <uocRom>0</uocRom>
+            <uocRam>0</uocRam>
+            <hadIROM>1</hadIROM>
+            <hadIRAM>1</hadIRAM>
+            <hadXRAM>0</hadXRAM>
+            <uocXRam>0</uocXRam>
+            <RvdsVP>0</RvdsVP>
+            <RvdsMve>0</RvdsMve>
+            <hadIRAM2>1</hadIRAM2>
+            <hadIROM2>0</hadIROM2>
+            <StupSel>8</StupSel>
+            <useUlib>0</useUlib>
+            <EndSel>0</EndSel>
+            <uLtcg>0</uLtcg>
+            <nSecure>0</nSecure>
+            <RoSelD>3</RoSelD>
+            <RwSelD>3</RwSelD>
+            <CodeSel>0</CodeSel>
+            <OptFeed>0</OptFeed>
+            <NoZi1>0</NoZi1>
+            <NoZi2>0</NoZi2>
+            <NoZi3>0</NoZi3>
+            <NoZi4>0</NoZi4>
+            <NoZi5>0</NoZi5>
+            <Ro1Chk>0</Ro1Chk>
+            <Ro2Chk>0</Ro2Chk>
+            <Ro3Chk>0</Ro3Chk>
+            <Ir1Chk>0</Ir1Chk>
+            <Ir2Chk>0</Ir2Chk>
+            <Ra1Chk>0</Ra1Chk>
+            <Ra2Chk>0</Ra2Chk>
+            <Ra3Chk>0</Ra3Chk>
+            <Im1Chk>0</Im1Chk>
+            <Im2Chk>0</Im2Chk>
+            <OnChipMemories>
+              <Ocm1>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm1>
+              <Ocm2>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm2>
+              <Ocm3>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm3>
+              <Ocm4>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm4>
+              <Ocm5>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm5>
+              <Ocm6>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </Ocm6>
+              <IRAM>
+                <Type>0</Type>
+                <StartAddress>0x200000</StartAddress>
+                <Size>0x1000</Size>
+              </IRAM>
+              <IROM>
+                <Type>1</Type>
+                <StartAddress>0x100000</StartAddress>
+                <Size>0x8000</Size>
+              </IROM>
+              <XRAM>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </XRAM>
+              <OCR_RVCT1>
+                <Type>1</Type>
+                <StartAddress>0x20000000</StartAddress>
+                <Size>0x800000</Size>
+              </OCR_RVCT1>
+              <OCR_RVCT2>
+                <Type>1</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT2>
+              <OCR_RVCT3>
+                <Type>1</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT3>
+              <OCR_RVCT4>
+                <Type>1</Type>
+                <StartAddress>0x100000</StartAddress>
+                <Size>0x8000</Size>
+              </OCR_RVCT4>
+              <OCR_RVCT5>
+                <Type>1</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT5>
+              <OCR_RVCT6>
+                <Type>0</Type>
+                <StartAddress>0x20800000</StartAddress>
+                <Size>0x1800000</Size>
+              </OCR_RVCT6>
+              <OCR_RVCT7>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT7>
+              <OCR_RVCT8>
+                <Type>0</Type>
+                <StartAddress>0x0</StartAddress>
+                <Size>0x0</Size>
+              </OCR_RVCT8>
+              <OCR_RVCT9>
+                <Type>0</Type>
+                <StartAddress>0x200000</StartAddress>
+                <Size>0x1000</Size>
+              </OCR_RVCT9>
+              <OCR_RVCT10>
+                <Type>0</Type>
+                <StartAddress>0x300000</StartAddress>
+                <Size>0x1000</Size>
+              </OCR_RVCT10>
+            </OnChipMemories>
+            <RvctStartVector></RvctStartVector>
+          </ArmAdsMisc>
+          <Cads>
+            <interw>1</interw>
+            <Optim>1</Optim>
+            <oTime>0</oTime>
+            <SplitLS>0</SplitLS>
+            <OneElfS>0</OneElfS>
+            <Strict>0</Strict>
+            <EnumInt>0</EnumInt>
+            <PlainCh>0</PlainCh>
+            <Ropi>0</Ropi>
+            <Rwpi>0</Rwpi>
+            <wLevel>2</wLevel>
+            <uThumb>0</uThumb>
+            <uSurpInc>0</uSurpInc>
+            <uC99>0</uC99>
+            <uGnu>0</uGnu>
+            <useXO>0</useXO>
+            <v6Lang>1</v6Lang>
+            <v6LangP>1</v6LangP>
+            <vShortEn>1</vShortEn>
+            <vShortWch>1</vShortWch>
+            <v6Lto>0</v6Lto>
+            <v6WtE>0</v6WtE>
+            <v6Rtti>0</v6Rtti>
+            <VariousControls>
+              <MiscControls>--c99</MiscControls>
+              <Define></Define>
+              <Undefine></Undefine>
+              <IncludePath></IncludePath>
+            </VariousControls>
+          </Cads>
+          <Aads>
+            <interw>1</interw>
+            <Ropi>0</Ropi>
+            <Rwpi>0</Rwpi>
+            <thumb>0</thumb>
+            <SplitLS>0</SplitLS>
+            <SwStkChk>0</SwStkChk>
+            <NoWarn>0</NoWarn>
+            <uSurpInc>0</uSurpInc>
+            <useXO>0</useXO>
+            <uClangAs>0</uClangAs>
+            <VariousControls>
+              <MiscControls></MiscControls>
+              <Define></Define>
+              <Undefine></Undefine>
+              <IncludePath></IncludePath>
+            </VariousControls>
+          </Aads>
+          <LDads>
+            <umfTarg>0</umfTarg>
+            <Ropi>0</Ropi>
+            <Rwpi>0</Rwpi>
+            <noStLib>0</noStLib>
+            <RepFail>1</RepFail>
+            <useFile>0</useFile>
+            <TextAddressRange>0x20000000</TextAddressRange>
+            <DataAddressRange>0x20800000</DataAddressRange>
+            <pXoBase></pXoBase>
+            <ScatterFile>.\linking_scripts\nuc980.sct</ScatterFile>
+            <IncludeLibs></IncludeLibs>
+            <IncludeLibsPath></IncludeLibsPath>
+            <Misc></Misc>
+            <LinkerInputFile></LinkerInputFile>
+            <DisabledWarnings></DisabledWarnings>
+          </LDads>
+        </TargetArmAds>
+      </TargetOption>
+    </Target>
+  </Targets>
+
+  <RTE>
+    <apis/>
+    <components/>
+    <files/>
+  </RTE>
+
+</Project>
diff --git a/bsp/nuvoton/numaker-pfm-m487/board/board.c b/bsp/nuvoton/numaker-pfm-m487/board/board.c
deleted file mode 100644
index 01d68aca61..0000000000
--- a/bsp/nuvoton/numaker-pfm-m487/board/board.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/**************************************************************************//**
-*
-* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
-*
-* SPDX-License-Identifier: Apache-2.0
-*
-* Change Logs:
-* Date            Author       Notes
-* 2020-1-16       Wayne        First version
-*
-******************************************************************************/
-
-#include <rtconfig.h>
-#include <rtthread.h>
-#include <NuMicro.h>
-#include "drv_uart.h"
-#include "board.h"
-#include "nutool_pincfg.h"
-#include "nutool_modclkcfg.h"
-
-
-/**
- * This function will initial M487 board.
- */
-void rt_hw_board_init(void)
-{
-    /* Init System/modules clock */
-    nutool_modclkcfg_init();
-
-    /* Unlock protected registers */
-    SYS_UnlockReg();
-
-    /* Init all pin function setting */
-    nutool_pincfg_init();
-
-    /* Configure SysTick */
-    SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
-
-    /* Update System Core Clock */
-    /* User can use SystemCoreClockUpdate() to calculate SystemCoreClock. */
-    SystemCoreClockUpdate();
-
-#if defined(BSP_USING_EADC)
-    /* Vref connect to internal */
-    SYS->VREFCTL = (SYS->VREFCTL & ~SYS_VREFCTL_VREFCTL_Msk) | SYS_VREFCTL_VREF_3_0V;
-#endif
-
-    /* Lock protected registers */
-    SYS_LockReg();
-
-#ifdef RT_USING_HEAP
-    rt_system_heap_init(HEAP_BEGIN, HEAP_END);
-#endif /* RT_USING_HEAP */
-
-#if defined(BSP_USING_UART)
-    rt_hw_uart_init();
-#endif
-
-#ifdef RT_USING_CONSOLE
-    rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
-#endif
-
-    NVIC_SetPriorityGrouping(7);
-
-#ifdef RT_USING_COMPONENTS_INIT
-    rt_components_board_init();
-#endif
-}
-
-/**
- * This is the timer interrupt service routine.
- *
- */
-void SysTick_Handler(void)
-{
-    /* enter interrupt */
-    rt_interrupt_enter();
-
-    rt_tick_increase();
-
-    /* leave interrupt */
-    rt_interrupt_leave();
-}
-
-void rt_hw_cpu_reset(void)
-{
-    SYS_UnlockReg();
-
-    SYS->IPRST0 |= SYS_IPRST0_CHIPRST_Msk;
-}
-
-int reboot(int argc, char** argv)
-{
-    rt_hw_cpu_reset();
-    return 0;
-}
-MSH_CMD_EXPORT(reboot, Reboot System);
diff --git a/components/cplusplus/Lock.h b/components/cplusplus/Lock.h
index 08d57c4850..c3cc1d2dae 100644
--- a/components/cplusplus/Lock.h
+++ b/components/cplusplus/Lock.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/cplusplus/Mail.h b/components/cplusplus/Mail.h
index a4c98e4007..ae3bfb5c41 100644
--- a/components/cplusplus/Mail.h
+++ b/components/cplusplus/Mail.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/cplusplus/Mutex.h b/components/cplusplus/Mutex.h
index 6fee315155..63efb4a6ea 100644
--- a/components/cplusplus/Mutex.h
+++ b/components/cplusplus/Mutex.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/cplusplus/Queue.h b/components/cplusplus/Queue.h
index 23a4638798..f6b91e1a21 100644
--- a/components/cplusplus/Queue.h
+++ b/components/cplusplus/Queue.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/cplusplus/Semaphore.h b/components/cplusplus/Semaphore.h
index cebaf91234..45c916e169 100644
--- a/components/cplusplus/Semaphore.h
+++ b/components/cplusplus/Semaphore.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/cplusplus/Thread.h b/components/cplusplus/Thread.h
index b578659489..0e681e5c2a 100644
--- a/components/cplusplus/Thread.h
+++ b/components/cplusplus/Thread.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/cplusplus/crt.h b/components/cplusplus/crt.h
index 84e5a4b820..903d4c86cd 100644
--- a/components/cplusplus/crt.h
+++ b/components/cplusplus/crt.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/cplusplus/crt_init.c b/components/cplusplus/crt_init.c
index fe12932457..977dee6ee9 100644
--- a/components/cplusplus/crt_init.c
+++ b/components/cplusplus/crt_init.c
@@ -1,15 +1,15 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
-* Change Logs:
-* Date           Author       Notes
-* 2014-12-03     Bernard      Add copyright header.
-* 2014-12-29     Bernard      Add cplusplus initialization for ARMCC.
-* 2016-06-28     Bernard      Add _init/_fini routines for GCC.
-* 2016-10-02     Bernard      Add WEAK for cplusplus_system_init routine.
-*/
+ * Change Logs:
+ * Date           Author       Notes
+ * 2014-12-03     Bernard      Add copyright header.
+ * 2014-12-29     Bernard      Add cplusplus initialization for ARMCC.
+ * 2016-06-28     Bernard      Add _init/_fini routines for GCC.
+ * 2016-10-02     Bernard      Add WEAK for cplusplus_system_init routine.
+ */
 
 #include <rtthread.h>
 
diff --git a/components/cplusplus/cxx_Mutex.cpp b/components/cplusplus/cxx_Mutex.cpp
index 229e842446..ad20e805e9 100644
--- a/components/cplusplus/cxx_Mutex.cpp
+++ b/components/cplusplus/cxx_Mutex.cpp
@@ -1,11 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
+
 #include "Mutex.h"
 
 using namespace rtthread;
diff --git a/components/cplusplus/cxx_Semaphore.cpp b/components/cplusplus/cxx_Semaphore.cpp
index c977a27c1a..eda71f24a3 100644
--- a/components/cplusplus/cxx_Semaphore.cpp
+++ b/components/cplusplus/cxx_Semaphore.cpp
@@ -1,11 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
+
 #include "Semaphore.h"
 
 using namespace rtthread;
diff --git a/components/cplusplus/cxx_Thread.cpp b/components/cplusplus/cxx_Thread.cpp
index b21fbdce1f..9689f6691b 100644
--- a/components/cplusplus/cxx_Thread.cpp
+++ b/components/cplusplus/cxx_Thread.cpp
@@ -1,11 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
+
 #include "Thread.h"
 
 using namespace rtthread;
diff --git a/components/cplusplus/cxx_crt.cpp b/components/cplusplus/cxx_crt.cpp
index d4cb84f77c..750e01e0cb 100644
--- a/components/cplusplus/cxx_crt.cpp
+++ b/components/cplusplus/cxx_crt.cpp
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
-* Change Logs:
-* Date           Author       Notes
-* 2015-03-07     Bernard      Add copyright header.
-*/
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-03-07     Bernard      Add copyright header.
+ */
 
 #include <rtthread.h>
 #include "crt.h"
diff --git a/components/dfs/Kconfig b/components/dfs/Kconfig
index c6b493f0d2..39eca3c507 100644
--- a/components/dfs/Kconfig
+++ b/components/dfs/Kconfig
@@ -115,7 +115,7 @@ if RT_USING_DFS
             int "Maximum sector size to be handled."
             default 512
             help
-                if you use some spi nor flash for fatfs, please set this the erase sector size, for example 4096.
+                If you use some spi nor flash for fatfs, please set this the erase sector size, for example 4096.
 
         config RT_DFS_ELM_USE_ERASE
             bool "Enable sector erase feature"
@@ -140,43 +140,6 @@ if RT_USING_DFS
         select RT_USING_MEMHEAP
         default n
 
-    config RT_USING_DFS_UFFS
-        bool "Enable UFFS file system: Ultra-low-cost Flash File System"
-        select RT_USING_MTD_NAND
-        default n
-
-    if RT_USING_DFS_UFFS
-        choice
-            prompt "UFFS ECC mode"
-            default RT_UFFS_ECC_MODE_1
-
-            config RT_UFFS_ECC_MODE_0
-                bool "0: Do not use ECC"
-
-            config RT_UFFS_ECC_MODE_1
-                bool "1: UFFS calculate the ECC"
-
-            config RT_UFFS_ECC_MODE_2
-                bool "2: Flash driver(or by hardware) calculate the ECC"
-
-            config RT_UFFS_ECC_MODE_3
-                bool "3: Hardware calculate the ECC and automatically write to spare."
-        endchoice
-
-        config RT_UFFS_ECC_MODE
-            int
-            default 0 if RT_UFFS_ECC_MODE_0
-            default 1 if RT_UFFS_ECC_MODE_1
-            default 2 if RT_UFFS_ECC_MODE_2
-            default 3 if RT_UFFS_ECC_MODE_3
-
-    endif
-
-    config RT_USING_DFS_JFFS2
-        bool "Enable JFFS2 file system"
-        select RT_USING_MTD_NOR
-        default n
-
     config RT_USING_DFS_NFS
         bool "Using NFS v3 client file system"
         depends on RT_USING_LWIP
diff --git a/components/dfs/filesystems/devfs/devfs.c b/components/dfs/filesystems/devfs/devfs.c
index e457f18727..2e2248d5cc 100644
--- a/components/dfs/filesystems/devfs/devfs.c
+++ b/components/dfs/filesystems/devfs/devfs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -271,7 +271,7 @@ int dfs_device_fs_getdents(struct dfs_fd *file, struct dirent *dirp, uint32_t co
     if (count == 0)
         return -EINVAL;
 
-    for (index = 0; index < count && index + root_dirent->read_index < root_dirent->device_count; 
+    for (index = 0; index < count && index + root_dirent->read_index < root_dirent->device_count;
         index ++)
     {
         object = (rt_object_t)root_dirent->devices[root_dirent->read_index + index];
diff --git a/components/dfs/filesystems/devfs/devfs.h b/components/dfs/filesystems/devfs/devfs.h
index ab2134043c..30a9482a35 100644
--- a/components/dfs/filesystems/devfs/devfs.h
+++ b/components/dfs/filesystems/devfs/devfs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/elmfat/dfs_elm.c b/components/dfs/filesystems/elmfat/dfs_elm.c
index 7e5e00aaf6..07b8f62fed 100644
--- a/components/dfs/filesystems/elmfat/dfs_elm.c
+++ b/components/dfs/filesystems/elmfat/dfs_elm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/elmfat/dfs_elm.h b/components/dfs/filesystems/elmfat/dfs_elm.h
index 1e9f577062..36a49bf18e 100644
--- a/components/dfs/filesystems/elmfat/dfs_elm.h
+++ b/components/dfs/filesystems/elmfat/dfs_elm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/elmfat/diskio.h b/components/dfs/filesystems/elmfat/diskio.h
index e4ead78380..511269ce3d 100644
--- a/components/dfs/filesystems/elmfat/diskio.h
+++ b/components/dfs/filesystems/elmfat/diskio.h
@@ -10,15 +10,15 @@ extern "C" {
 #endif
 
 /* Status of Disk Functions */
-typedef BYTE	DSTATUS;
+typedef BYTE    DSTATUS;
 
 /* Results of Disk Functions */
 typedef enum {
-	RES_OK = 0,		/* 0: Successful */
-	RES_ERROR,		/* 1: R/W Error */
-	RES_WRPRT,		/* 2: Write Protected */
-	RES_NOTRDY,		/* 3: Not Ready */
-	RES_PARERR		/* 4: Invalid Parameter */
+    RES_OK = 0,     /* 0: Successful */
+    RES_ERROR,      /* 1: R/W Error */
+    RES_WRPRT,      /* 2: Write Protected */
+    RES_NOTRDY,     /* 3: Not Ready */
+    RES_PARERR      /* 4: Invalid Parameter */
 } DRESULT;
 
 
@@ -35,40 +35,40 @@ DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
 
 /* Disk Status Bits (DSTATUS) */
 
-#define STA_NOINIT		0x01	/* Drive not initialized */
-#define STA_NODISK		0x02	/* No medium in the drive */
-#define STA_PROTECT		0x04	/* Write protected */
+#define STA_NOINIT      0x01    /* Drive not initialized */
+#define STA_NODISK      0x02    /* No medium in the drive */
+#define STA_PROTECT     0x04    /* Write protected */
 
 
 /* Command code for disk_ioctrl fucntion */
 
 /* Generic command (Used by FatFs) */
-#define CTRL_SYNC			0	/* Complete pending write process (needed at FF_FS_READONLY == 0) */
-#define GET_SECTOR_COUNT	1	/* Get media size (needed at FF_USE_MKFS == 1) */
-#define GET_SECTOR_SIZE		2	/* Get sector size (needed at FF_MAX_SS != FF_MIN_SS) */
-#define GET_BLOCK_SIZE		3	/* Get erase block size (needed at FF_USE_MKFS == 1) */
-#define CTRL_TRIM			4	/* Inform device that the data on the block of sectors is no longer used (needed at FF_USE_TRIM == 1) */
+#define CTRL_SYNC           0   /* Complete pending write process (needed at FF_FS_READONLY == 0) */
+#define GET_SECTOR_COUNT    1   /* Get media size (needed at FF_USE_MKFS == 1) */
+#define GET_SECTOR_SIZE     2   /* Get sector size (needed at FF_MAX_SS != FF_MIN_SS) */
+#define GET_BLOCK_SIZE      3   /* Get erase block size (needed at FF_USE_MKFS == 1) */
+#define CTRL_TRIM           4   /* Inform device that the data on the block of sectors is no longer used (needed at FF_USE_TRIM == 1) */
 
 /* Generic command (Not used by FatFs) */
-#define CTRL_POWER			5	/* Get/Set power status */
-#define CTRL_LOCK			6	/* Lock/Unlock media removal */
-#define CTRL_EJECT			7	/* Eject media */
-#define CTRL_FORMAT			8	/* Create physical format on the media */
+#define CTRL_POWER          5   /* Get/Set power status */
+#define CTRL_LOCK           6   /* Lock/Unlock media removal */
+#define CTRL_EJECT          7   /* Eject media */
+#define CTRL_FORMAT         8   /* Create physical format on the media */
 
 /* MMC/SDC specific ioctl command */
-#define MMC_GET_TYPE		10	/* Get card type */
-#define MMC_GET_CSD			11	/* Get CSD */
-#define MMC_GET_CID			12	/* Get CID */
-#define MMC_GET_OCR			13	/* Get OCR */
-#define MMC_GET_SDSTAT		14	/* Get SD status */
-#define ISDIO_READ			55	/* Read data form SD iSDIO register */
-#define ISDIO_WRITE			56	/* Write data to SD iSDIO register */
-#define ISDIO_MRITE			57	/* Masked write data to SD iSDIO register */
+#define MMC_GET_TYPE        10  /* Get card type */
+#define MMC_GET_CSD         11  /* Get CSD */
+#define MMC_GET_CID         12  /* Get CID */
+#define MMC_GET_OCR         13  /* Get OCR */
+#define MMC_GET_SDSTAT      14  /* Get SD status */
+#define ISDIO_READ          55  /* Read data form SD iSDIO register */
+#define ISDIO_WRITE         56  /* Write data to SD iSDIO register */
+#define ISDIO_MRITE         57  /* Masked write data to SD iSDIO register */
 
 /* ATA/CF specific ioctl command */
-#define ATA_GET_REV			20	/* Get F/W revision */
-#define ATA_GET_MODEL		21	/* Get model name */
-#define ATA_GET_SN			22	/* Get serial number */
+#define ATA_GET_REV         20  /* Get F/W revision */
+#define ATA_GET_MODEL       21  /* Get model name */
+#define ATA_GET_SN          22  /* Get serial number */
 
 #ifdef __cplusplus
 }
diff --git a/components/dfs/filesystems/jffs2/SConscript b/components/dfs/filesystems/jffs2/SConscript
deleted file mode 100644
index 47854393e3..0000000000
--- a/components/dfs/filesystems/jffs2/SConscript
+++ /dev/null
@@ -1,50 +0,0 @@
-# RT-Thread building script for component
-
-from building import *
-
-cwd = GetCurrentDir()
-src = Split('''
-dfs_jffs2.c
-porting.c
-
-cyg/compress/src/adler32.c
-cyg/compress/src/compress.c
-cyg/compress/src/deflate.c
-cyg/compress/src/infback.c
-cyg/compress/src/inffast.c
-cyg/compress/src/inflate.c
-cyg/compress/src/inftrees.c
-cyg/compress/src/trees.c
-cyg/compress/src/uncompr.c
-cyg/compress/src/zutil.c
-
-cyg/crc/crc16.c
-cyg/crc/crc32.c
-cyg/crc/posix_crc.c
-kernel/rbtree.c
-src/build.c
-src/compr.c
-src/compr_rtime.c
-src/compr_rubin.c
-src/compr_zlib.c
-src/debug.c
-src/dir-ecos.c
-src/erase.c
-src/flashio.c
-src/fs-ecos.c
-src/gc.c
-src/gcthread.c
-src/malloc-ecos.c
-src/nodelist.c
-src/nodemgmt.c
-src/read.c
-src/readinode.c
-src/scan.c
-src/write.c
-''')
-
-CPPPATH = [cwd, cwd + '/include', cwd + '/src', cwd + '/cyg', cwd + '/kernel', cwd + '/cyg/compress']
-
-group = DefineGroup('Filesystem', src, depend = ['RT_USING_DFS', 'RT_USING_DFS_JFFS2'], CPPPATH = CPPPATH)
-
-Return('group')
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/ChangeLog b/components/dfs/filesystems/jffs2/cyg/compress/ChangeLog
deleted file mode 100644
index 295e5cdd48..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/ChangeLog
+++ /dev/null
@@ -1,218 +0,0 @@
-2009-03-09  John Dallaway  <john@dallaway.org.uk>
-
-	* cdl/compress_zlib.cdl: Reference test executable filenames for
-	compatibility with the eCos Configuration Tool.
-
-2005-10-16  Peter Korsgaard  <jacmet@sunsite.dk>
-
-	* cdl/compress_zlib.cdl (CYGFUN_COMPRESS_ZLIB_GZIO): New option to
-	include zlib stdio-like utility functions.
-
-2005-07-27  Peter Korsgaard  <jacmet@sunsite.dk>
-
-	* src/ChangeLog: 
-	* src/configure: 
-	* src/deflate.c: 
-	* src/deflate.h: 
-	* src/FAQ: 
-	* src/gzio.c: 
-	* src/Make_vms.com: 
-	* src/adler32.c: 
-	* src/compress.c: 
-	* src/example.c: 
-	* src/minigzip.c: 
-	* src/infback.c: 
-	* src/inffast.c: 
-	* src/inflate.c: 
-	* src/inflate.h: 
-	* src/inftrees.c: 
-	* src/inftrees.h: 
-	* src/Makefile: 
-	* src/Makefile.in: 
-	* src/README: 
-	* src/README.eCos: 
-	* src/trees.c: 
-	* src/zlib.3: 
-	* src/zutil.c: 
-	* src/zutil.h: 
-	* include/zlib.h: 
-	* include/zconf.h: Upgrade to zlib-1.2.3
-
-2005-06-28  Peter Korsgaard  <jacmet@sunsite.dk>
-
-	* src/ChangeLog: 
-	* src/configure: 
-	* src/deflate.c: 
-	* src/deflate.h: 
-	* src/FAQ: 
-	* src/gzio.c: 
-	* src/INDEX: 
-	* src/infback.c: 
-	* src/inffast.c: 
-	* src/inflate.c: 
-	* src/Makefile: 
-	* src/Makefile.in: 
-	* src/README: 
-	* src/trees.c: 
-	* src/zlib.3: 
-	* src/zutil.h: 
-	* include/zlib.h: 
-	* include/zconf.h: Upgrade to zlib-1.2.2
-
-2005-03-27  Andrew Lunn  <andrew.lunn@ascom.ch>
-
-	* tests/zlib1.c: Include diag.h for diag_printf proto.
-
-2004-05-25  Gary Thomas  <gary@mlbassoc.com>
-
-	* src/zutil.h: Fix redefine of 'crc32'
-	
-	* include/zconf.h: Force define of __ECOS__ to make it easier for
-	applications to use this library.  Also define Z_PREFIX to minimize
-	namespace pollution.  !CYGSEM_COMPRESS_ZLIB_DEFLATE_MAKES_GZIP now
-	implies NO_GZCOMPRESS and NO_GZIP.
-
-2004-05-24  Gary Thomas  <gary@mlbassoc.com>
-
-	* tests/zlib2.c: 
-	* tests/zlib1.c: 
-	* src/zutil.h: 
-	* src/zutil.c: 
-	* src/zlib.3: 
-	* src/uncompr.c: 
-	* src/trees.c: 
-	* src/minigzip.c: 
-	* src/inftrees.h: 
-	* src/inftrees.c: 
-	* src/inflate.h: 
-	* src/inflate.c: 
-	* src/inffixed.h:
-	* src/inffast.h: 
-	* src/inffast.c: 
-	* src/infback.c: 
-	* src/gzio.c: 
-	* src/example.c: 
-	* src/deflate.h: 
-	* src/deflate.c: 
-	* src/configure: 
-	* src/compress.c: 
-	* src/algorithm.txt: 
-	* src/adler32.c: 
-	* src/README.eCos: 
-	* src/README: 
-	* src/Makefile.in: 
-	* src/Makefile: 
-	* src/INDEX: 
-	* src/FAQ: 
-	* include/zlib.h: 
-	* include/zconf.h: 
-	* cdl/compress_zlib.cdl: Upgrade to zlib-1.2.1
-
-2004-04-29  Oyvind Harboe <oyvind.harboe@zylin.com>
-	
-	* src/inffixed.h: added "const" to tables that do not 
-	change in order to save RAM. Ca. 4k.
-
-2003-11-20  Andrew Lunn  <andrew.lunn@ascom.ch>
-
-	* tests/zlib[12].c: Modified the text to the gcc3.3 friendly.
-
-2003-11-13  Daniel N�ri  <daniel.neri@sigicom.se>
-
-        * Upgrade to zlib 1.1.4 and additional fix for inflate bug on
-        machines with 16-bit pointers.
-
-2003-09-08  Thomas Koeller  <thomas.koeller@baslerweb.com>
-
-	* cdl/compress_zlib.cdl : Displayed package name was wrong.
-
-2002-10-10  Andrew Lunn  <andrew.lunn@ascom.ch>
-
-	* include/zutil.h:
-	* include/zlib.h:
-	* src/inflate.c (inflate): Use the CRC function from the CRC
-	package.
-	* src/crc32.c: Removed.
-
-2002-09-09  Mark Salter  <msalter@redhat.com>
-
-	* inflate.c (inflate): Fix CRC calculation over multiple invocations
-	with same output buffer. 
-	
-2002-02-18  Jesper Skov  <jskov@redhat.com>
-
-	* src/infblock.c: Applied fix for double-free which could cause a
-	zlib crash. Fixed indentation.
-
-2001-10-15  Gary Thomas  <gthomas@redhat.com>
-
-	* include/zconf.h: 
-	* cdl/compress_zlib.cdl: 
-	Define new interface CYGINT_COMPRESS_ZLIB_LOCAL_ALLOC which allows
-	users of this code (applications) to provide their own allocators.
-
-2001-04-02  Jesper Skov  <jskov@redhat.com>
-
-	* tests/zlib2.c: Removed BAD_CRC state.
-
-2001-03-12  Jesper Skov  <jskov@redhat.com>
-
-	* src/inflate.c: Remove BAD_CRC state. Do separate CRC for
-	gzippped data.
-	* include/zlib.h: Removed Z_BAD_CRC hack. Rename crc32 function.
-	* src/crc32.c: Include zlib.h header from
-	include/cyg/compress. Rename function.
-	* cdl/compress_zlib.cdl: Build the crc32.c file.
-
-2001-03-09  Jesper Skov  <jskov@redhat.com>
-
-	* src/compress.c: Include zlib.h header from include/cyg/compress.
-	* src/uncompr.c: Same.	
-	* tests/zlib1.c: Added.
-	* tests/zlib2.c: Added.
-	* cdl/compress_zlib.cdl: Compile tests. Compile
-	files holding compress/uncompress functions.
-
-	* cdl/compress_zlib.cdl: Don't warn about prototypes when building.
-
-2001-03-08  Jesper Skov  <jskov@redhat.com>
-
-	* cdl/compress_zlib.cdl: Add isoinfra requirement.
-
-	* include/zconf.h: Override STDC check.
-
-	* include/zlib.h: Added new BAD_CRC return type. Comment out crc32
-	declaration.
-
-	* src/inflate.c: Added additional states to allow for gzip header
-	decoding.
-	
-	* src/adler32.c: Include zlib.h header from include/cyg/compress.
-	* src/zutil.h: Same.
-	
-	* Import zlib 1.1.3 sources, but leave out some sub
-	directories. See src/README.eCos for details.
-
-//===========================================================================
-// ####GPLCOPYRIGHTBEGIN####                                                
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2009 Free Software Foundation, Inc.
-//
-// This program is free software; you can redistribute it and/or modify     
-// it under the terms of the GNU General Public License as published by     
-// the Free Software Foundation; either version 2 or (at your option) any   
-// later version.                                                           
-//
-// This program is distributed in the hope that it will be useful, but      
-// WITHOUT ANY WARRANTY; without even the implied warranty of               
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        
-// General Public License for more details.                                 
-//
-// You should have received a copy of the GNU General Public License        
-// along with this program; if not, write to the                            
-// Free Software Foundation, Inc., 51 Franklin Street,                      
-// Fifth Floor, Boston, MA  02110-1301, USA.                                
-// -------------------------------------------                              
-// ####GPLCOPYRIGHTEND####                                                  
-//===========================================================================
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/cdl/compress_zlib.cdl b/components/dfs/filesystems/jffs2/cyg/compress/cdl/compress_zlib.cdl
deleted file mode 100644
index d5787570b7..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/cdl/compress_zlib.cdl
+++ /dev/null
@@ -1,170 +0,0 @@
-# ====================================================================
-#
-#      compress_zlib.cdl
-#
-#      Zlib compress/decompress configuration data
-#
-# ====================================================================
-## ####ECOSGPLCOPYRIGHTBEGIN####                                            
-## -------------------------------------------                              
-## This file is part of eCos, the Embedded Configurable Operating System.   
-## Copyright (C) 1998, 1999, 2000, 2001, 2002, 2009 Free Software Foundation, Inc.
-##
-## eCos is free software; you can redistribute it and/or modify it under    
-## the terms of the GNU General Public License as published by the Free     
-## Software Foundation; either version 2 or (at your option) any later      
-## version.                                                                 
-##
-## eCos is distributed in the hope that it will be useful, but WITHOUT      
-## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-## for more details.                                                        
-##
-## You should have received a copy of the GNU General Public License        
-## along with eCos; if not, write to the Free Software Foundation, Inc.,    
-## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-##
-## As a special exception, if other files instantiate templates or use      
-## macros or inline functions from this file, or you compile this file      
-## and link it with other works to produce a work based on this file,       
-## this file does not by itself cause the resulting work to be covered by   
-## the GNU General Public License. However the source code for this file    
-## must still be made available in accordance with section (3) of the GNU   
-## General Public License v2.                                               
-##
-## This exception does not invalidate any other reasons why a work based    
-## on this file might be covered by the GNU General Public License.         
-## -------------------------------------------                              
-## ####ECOSGPLCOPYRIGHTEND####                                              
-# ====================================================================
-######DESCRIPTIONBEGIN####
-#
-# Author(s):      jskov
-# Contributors:
-# Date:           2001-03-06
-#
-#####DESCRIPTIONEND####
-#
-# ====================================================================
-
-cdl_package CYGPKG_COMPRESS_ZLIB {
-    display       "Zlib compress and decompress package"
-    description   "
-                  This package provides support for compression and
-                  decompression."
-    include_dir   cyg/compress
-
-    requires      CYGPKG_ISOINFRA
-    requires      CYGPKG_CRC
-
-    compile       adler32.c compress.c uncompr.c zutil.c trees.c
-    compile       deflate.c infback.c inffast.c inflate.c inftrees.c
-
-    cdl_interface CYGINT_COMPRESS_ZLIB_LOCAL_ALLOC {
-        display "Override memory allocation routines."
-    }
-
-    cdl_option  CYGSEM_COMPRESS_ZLIB_DEFLATE_MAKES_GZIP {
-        display        "Should deflate() produce 'gzip' compatible output?"
-        flavor         bool
-        default_value  1
-        description "
-          If this option is set then the output of calling deflate()
-          will be wrapped up as a 'gzip' compatible file."
-    }
-
-    cdl_option CYGSEM_COMPRESS_ZLIB_NEEDS_MALLOC {
-        display        "Does this library need malloc?"
-        flavor         bool
-        active_if      { CYGINT_COMPRESS_ZLIB_LOCAL_ALLOC == 0 }
-        requires       CYGPKG_MEMALLOC
-        no_define
-        default_value  1
-        description    "
-           This pseudo-option will force the memalloc library to be
-           required iff the application does not provide it's own
-           infrastructure."
-    }
-
-    cdl_option CYGFUN_COMPRESS_ZLIB_GZIO {
-        display        "Include stdio-like utility functions"
-        flavor         bool
-        requires       CYGINT_ISO_STDIO_FILEPOS
-        requires       CYGINT_ISO_STRING_STRFUNCS
-        requires       CYGINT_ISO_STDIO_FORMATTED_IO
-        requires       CYGINT_ISO_STDIO_FILEACCESS
-        default_value  { CYGPKG_LIBC_STDIO_OPEN ? 1 : 0 }
-        compile        gzio.c
-        description    "
-           This option enables the stdio-like zlib utility functions
-           (gzread/gzwrite and friends) provided in gzio.c."
-    }
-
-
-# ====================================================================
-
-    cdl_component CYGPKG_COMPRESS_ZLIB_OPTIONS {
-        display "Zlib compress and decompress package build options"
-        flavor  none
-        no_define
-        description   "
-	    Package specific build options including control over
-	    compiler flags used only in building this package,
-	    and details of which tests are built."
-
-        cdl_option CYGPKG_COMPRESS_ZLIB_CFLAGS_ADD {
-            display "Additional compiler flags"
-            flavor  data
-            no_define
-            default_value { "-D__ECOS__ -DNO_ERRNO_H" }
-            description   "
-                This option modifies the set of compiler flags for
-                building this package. These flags are used in addition
-                to the set of global flags."
-        }
-
-        cdl_option CYGPKG_COMPRESS_ZLIB_CFLAGS_REMOVE {
-            display "Suppressed compiler flags"
-            flavor  data
-            no_define
-            default_value { "-Wstrict-prototypes" }
-            description   "
-                This option modifies the set of compiler flags for
-                building this package. These flags are removed from
-                the set of global flags if present."
-        }
-
-        cdl_option CYGPKG_COMPRESS_ZLIB_LDFLAGS_ADD {
-            display "Additional compiler flags"
-            flavor  data
-            no_define
-            default_value { "" }
-            description   "
-                This option modifies the set of compiler flags for
-                building this package. These flags are used in addition
-                to the set of global flags."
-        }
-
-        cdl_option CYGPKG_COMPRESS_ZLIB_LDFLAGS_REMOVE {
-            display "Suppressed compiler flags"
-            flavor  data
-            no_define
-            default_value { "" }
-            description   "
-                This option modifies the set of compiler flags for
-                building this package. These flags are removed from
-                the set of global flags if present."
-        }
-	
-    }
-
-    cdl_option CYGPKG_COMPRESS_ZLIB_TESTS {
-        display "zlib tests"
-        flavor  data
-        no_define
-        calculated { "tests/zlib1 tests/zlib2" }
-    }
-}
-
-# ====================================================================
-# EOF compress_zlib.cdl
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/include/zconf.h b/components/dfs/filesystems/jffs2/cyg/compress/include/zconf.h
deleted file mode 100644
index 09608dcc34..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/include/zconf.h
+++ /dev/null
@@ -1,349 +0,0 @@
-/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2005 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#ifndef ZCONF_H
-#define ZCONF_H
-
-// #ifdef __ECOS__
-#undef __ECOS__
-#define __ECOS__
-#define Z_PREFIX
-#include <pkgconf/compress_zlib.h>
-#if CYGINT_COMPRESS_ZLIB_LOCAL_ALLOC != 0
-#define MY_ZCALLOC
-#endif
-#ifdef CYGSEM_COMPRESS_ZLIB_DEFLATE_MAKES_GZIP
-#undef  MAX_WBITS
-#define MAX_WBITS   15+16 /* 32K LZ77 window */
-#else
-#define NO_GZIP
-#define NO_GZCOMPRESS
-#endif
-// #endif
-
-/*
- * If you *really* need a unique prefix for all types and library functions,
- * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
- */
-#ifdef Z_PREFIX
-#  define deflateInit_          z_deflateInit_
-#  define deflate               z_deflate
-#  define deflateEnd            z_deflateEnd
-#  define inflateInit_          z_inflateInit_
-#  define inflate               z_inflate
-#  define inflateEnd            z_inflateEnd
-#  define deflateInit2_         z_deflateInit2_
-#  define deflateSetDictionary  z_deflateSetDictionary
-#  define deflateCopy           z_deflateCopy
-#  define deflateReset          z_deflateReset
-#  define deflateParams         z_deflateParams
-#  define deflateBound          z_deflateBound
-#  define deflatePrime          z_deflatePrime
-#  define inflateInit2_         z_inflateInit2_
-#  define inflateSetDictionary  z_inflateSetDictionary
-#  define inflateSync           z_inflateSync
-#  define inflateSyncPoint      z_inflateSyncPoint
-#  define inflateCopy           z_inflateCopy
-#  define inflateReset          z_inflateReset
-#  define inflateBack           z_inflateBack
-#  define inflateBackEnd        z_inflateBackEnd
-#  define compress              z_compress
-#  define compress2             z_compress2
-#  define compressBound         z_compressBound
-#  define uncompress            z_uncompress
-#  define adler32               z_adler32
-#  define crc32                 z_crc32
-#  define get_crc_table         z_get_crc_table
-#  define zError                z_zError
-
-#  define alloc_func            z_alloc_func
-#  define free_func             z_free_func
-#  define in_func               z_in_func
-#  define out_func              z_out_func
-#  define Byte                  z_Byte
-#  define uInt                  z_uInt
-#  define uLong                 z_uLong
-#  define Bytef                 z_Bytef
-#  define charf                 z_charf
-#  define intf                  z_intf
-#  define uIntf                 z_uIntf
-#  define uLongf                z_uLongf
-#  define voidpf                z_voidpf
-#  define voidp                 z_voidp
-#endif
-
-#if defined(__MSDOS__) && !defined(MSDOS)
-#  define MSDOS
-#endif
-#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
-#  define OS2
-#endif
-#if defined(_WINDOWS) && !defined(WINDOWS)
-#  define WINDOWS
-#endif
-#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
-#  ifndef WIN32
-#    define WIN32
-#  endif
-#endif
-#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
-#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
-#    ifndef SYS16BIT
-#      define SYS16BIT
-#    endif
-#  endif
-#endif
-
-/*
- * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
- * than 64k bytes at a time (needed on systems with 16-bit int).
- */
-#ifdef SYS16BIT
-#  define MAXSEG_64K
-#endif
-#ifdef MSDOS
-#  define UNALIGNED_OK
-#endif
-
-#ifdef __STDC_VERSION__
-#  ifndef STDC
-#    define STDC
-#  endif
-#  if __STDC_VERSION__ >= 199901L
-#    ifndef STDC99
-#      define STDC99
-#    endif
-#  endif
-#endif
-#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
-#  define STDC
-#endif
-#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
-#  define STDC
-#endif
-#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
-#  define STDC
-#endif
-#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
-#  define STDC
-#endif
-
-#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
-#  define STDC
-#endif
-
-#ifndef STDC
-#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
-#    define const       /* note: need a more gentle solution here */
-#  endif
-#endif
-
-/* Some Mac compilers merge all .h files incorrectly: */
-#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
-#  define NO_DUMMY_DECL
-#endif
-
-/* Maximum value for memLevel in deflateInit2 */
-#ifndef MAX_MEM_LEVEL
-#  ifdef MAXSEG_64K
-#    define MAX_MEM_LEVEL 8
-#  else
-#    define MAX_MEM_LEVEL 9
-#  endif
-#endif
-
-/* Maximum value for windowBits in deflateInit2 and inflateInit2.
- * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
- * created by gzip. (Files created by minigzip can still be extracted by
- * gzip.)
- */
-#ifndef MAX_WBITS
-#  define MAX_WBITS   15 /* 32K LZ77 window */
-#endif
-
-/* The memory requirements for deflate are (in bytes):
-            (1 << (windowBits+2)) +  (1 << (memLevel+9))
- that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
- plus a few kilobytes for small objects. For example, if you want to reduce
- the default memory requirements from 256K to 128K, compile with
-     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
- Of course this will generally degrade compression (there's no free lunch).
-
-   The memory requirements for inflate are (in bytes) 1 << windowBits
- that is, 32K for windowBits=15 (default value) plus a few kilobytes
- for small objects.
-*/
-
-                        /* Type declarations */
-
-#ifndef OF /* function prototypes */
-#  ifdef STDC
-#    define OF(args)  args
-#  else
-#    define OF(args)  ()
-#  endif
-#endif
-
-/* The following definitions for FAR are needed only for MSDOS mixed
- * model programming (small or medium model with some far allocations).
- * This was tested only with MSC; for other MSDOS compilers you may have
- * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
- * just define FAR to be empty.
- */
-#ifdef SYS16BIT
-#  if defined(M_I86SM) || defined(M_I86MM)
-     /* MSC small or medium model */
-#    define SMALL_MEDIUM
-#    ifdef _MSC_VER
-#      define FAR _far
-#    else
-#      define FAR far
-#    endif
-#  endif
-#  if (defined(__SMALL__) || defined(__MEDIUM__))
-     /* Turbo C small or medium model */
-#    define SMALL_MEDIUM
-#    ifdef __BORLANDC__
-#      define FAR _far
-#    else
-#      define FAR far
-#    endif
-#  endif
-#endif
-
-#if defined(WINDOWS) || defined(WIN32)
-   /* If building or using zlib as a DLL, define ZLIB_DLL.
-    * This is not mandatory, but it offers a little performance increase.
-    */
-#  ifdef ZLIB_DLL
-#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
-#      ifdef ZLIB_INTERNAL
-#        define ZEXTERN extern __declspec(dllexport)
-#      else
-#        define ZEXTERN extern __declspec(dllimport)
-#      endif
-#    endif
-#  endif  /* ZLIB_DLL */
-   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
-    * define ZLIB_WINAPI.
-    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
-    */
-#  ifdef ZLIB_WINAPI
-#    ifdef FAR
-#      undef FAR
-#    endif
-#    include <windows.h>
-     /* No need for _export, use ZLIB.DEF instead. */
-     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
-#    define ZEXPORT WINAPI
-#    ifdef WIN32
-#      define ZEXPORTVA WINAPIV
-#    else
-#      define ZEXPORTVA FAR CDECL
-#    endif
-#  endif
-#endif
-
-#if defined (__BEOS__)
-#  ifdef ZLIB_DLL
-#    ifdef ZLIB_INTERNAL
-#      define ZEXPORT   __declspec(dllexport)
-#      define ZEXPORTVA __declspec(dllexport)
-#    else
-#      define ZEXPORT   __declspec(dllimport)
-#      define ZEXPORTVA __declspec(dllimport)
-#    endif
-#  endif
-#endif
-
-#ifndef ZEXTERN
-#  define ZEXTERN extern
-#endif
-#ifndef ZEXPORT
-#  define ZEXPORT
-#endif
-#ifndef ZEXPORTVA
-#  define ZEXPORTVA
-#endif
-
-#ifndef FAR
-#  define FAR
-#endif
-
-#if !defined(__MACTYPES__)
-typedef unsigned char  Byte;  /* 8 bits */
-#endif
-typedef unsigned int   uInt;  /* 16 bits or more */
-typedef unsigned long  uLong; /* 32 bits or more */
-
-#ifdef SMALL_MEDIUM
-   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
-#  define Bytef Byte FAR
-#else
-   typedef Byte  FAR Bytef;
-#endif
-typedef char  FAR charf;
-typedef int   FAR intf;
-typedef uInt  FAR uIntf;
-typedef uLong FAR uLongf;
-
-#ifdef STDC
-   typedef void const *voidpc;
-   typedef void FAR   *voidpf;
-   typedef void       *voidp;
-#else
-   typedef Byte const *voidpc;
-   typedef Byte FAR   *voidpf;
-   typedef Byte       *voidp;
-#endif
-
-#if 0           /* HAVE_UNISTD_H -- this line is updated by ./configure */
-#  include <sys/types.h> /* for off_t */
-#  include <unistd.h>    /* for SEEK_* and off_t */
-#  ifdef VMS
-#    include <unixio.h>   /* for off_t */
-#  endif
-#  define z_off_t off_t
-#endif
-#ifndef SEEK_SET
-#  define SEEK_SET        0       /* Seek from beginning of file.  */
-#  define SEEK_CUR        1       /* Seek from current position.  */
-#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
-#endif
-#ifndef z_off_t
-#  define z_off_t long
-#endif
-
-#if defined(__OS400__)
-#  define NO_vsnprintf
-#endif
-
-#if defined(__MVS__)
-#  define NO_vsnprintf
-#  ifdef FAR
-#    undef FAR
-#  endif
-#endif
-
-/* MVS linker does not support external names larger than 8 bytes */
-#if defined(__MVS__)
-#   pragma map(deflateInit_,"DEIN")
-#   pragma map(deflateInit2_,"DEIN2")
-#   pragma map(deflateEnd,"DEEND")
-#   pragma map(deflateBound,"DEBND")
-#   pragma map(inflateInit_,"ININ")
-#   pragma map(inflateInit2_,"ININ2")
-#   pragma map(inflateEnd,"INEND")
-#   pragma map(inflateSync,"INSY")
-#   pragma map(inflateSetDictionary,"INSEDI")
-#   pragma map(compressBound,"CMBND")
-#   pragma map(inflate_table,"INTABL")
-#   pragma map(inflate_fast,"INFA")
-#   pragma map(inflate_copyright,"INCOPY")
-#endif
-
-#endif /* ZCONF_H */
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/include/zlib.h b/components/dfs/filesystems/jffs2/cyg/compress/include/zlib.h
deleted file mode 100644
index 081e7c912f..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/include/zlib.h
+++ /dev/null
@@ -1,1358 +0,0 @@
-/* zlib.h -- interface of the 'zlib' general purpose compression library
-  version 1.2.3, July 18th, 2005
-
-  Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler
-
-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the authors be held liable for any damages
-  arising from the use of this software.
-
-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
-
-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
-
-  Jean-loup Gailly        Mark Adler
-  jloup@gzip.org          madler@alumni.caltech.edu
-
-
-  The data format used by the zlib library is described by RFCs (Request for
-  Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt
-  (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
-*/
-
-#ifndef ZLIB_H
-#define ZLIB_H
-
-#include "zconf.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define ZLIB_VERSION "1.2.3"
-#define ZLIB_VERNUM 0x1230
-
-/*
-     The 'zlib' compression library provides in-memory compression and
-  decompression functions, including integrity checks of the uncompressed
-  data.  This version of the library supports only one compression method
-  (deflation) but other algorithms will be added later and will have the same
-  stream interface.
-
-     Compression can be done in a single step if the buffers are large
-  enough (for example if an input file is mmap'ed), or can be done by
-  repeated calls of the compression function.  In the latter case, the
-  application must provide more input and/or consume the output
-  (providing more output space) before each call.
-
-     The compressed data format used by default by the in-memory functions is
-  the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
-  around a deflate stream, which is itself documented in RFC 1951.
-
-     The library also supports reading and writing files in gzip (.gz) format
-  with an interface similar to that of stdio using the functions that start
-  with "gz".  The gzip format is different from the zlib format.  gzip is a
-  gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
-
-     This library can optionally read and write gzip streams in memory as well.
-
-     The zlib format was designed to be compact and fast for use in memory
-  and on communications channels.  The gzip format was designed for single-
-  file compression on file systems, has a larger header than zlib to maintain
-  directory information, and uses a different, slower check method than zlib.
-
-     The library does not install any signal handler. The decoder checks
-  the consistency of the compressed data, so the library should never
-  crash even in case of corrupted input.
-*/
-
-typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
-typedef void   (*free_func)  OF((voidpf opaque, voidpf address));
-
-struct internal_state;
-
-typedef struct z_stream_s {
-    Bytef    *next_in;  /* next input byte */
-    uInt     avail_in;  /* number of bytes available at next_in */
-    uLong    total_in;  /* total nb of input bytes read so far */
-
-    Bytef    *next_out; /* next output byte should be put there */
-    uInt     avail_out; /* remaining free space at next_out */
-    uLong    total_out; /* total nb of bytes output so far */
-
-    char     *msg;      /* last error message, NULL if no error */
-    struct internal_state FAR *state; /* not visible by applications */
-
-    alloc_func zalloc;  /* used to allocate the internal state */
-    free_func  zfree;   /* used to free the internal state */
-    voidpf     opaque;  /* private data object passed to zalloc and zfree */
-
-    int     data_type;  /* best guess about the data type: binary or text */
-    uLong   adler;      /* adler32 value of the uncompressed data */
-    uLong   reserved;   /* reserved for future use */
-} z_stream;
-
-typedef z_stream FAR *z_streamp;
-
-/*
-     gzip header information passed to and from zlib routines.  See RFC 1952
-  for more details on the meanings of these fields.
-*/
-typedef struct gz_header_s {
-    int     text;       /* true if compressed data believed to be text */
-    uLong   time;       /* modification time */
-    int     xflags;     /* extra flags (not used when writing a gzip file) */
-    int     os;         /* operating system */
-    Bytef   *extra;     /* pointer to extra field or Z_NULL if none */
-    uInt    extra_len;  /* extra field length (valid if extra != Z_NULL) */
-    uInt    extra_max;  /* space at extra (only when reading header) */
-    Bytef   *name;      /* pointer to zero-terminated file name or Z_NULL */
-    uInt    name_max;   /* space at name (only when reading header) */
-    Bytef   *comment;   /* pointer to zero-terminated comment or Z_NULL */
-    uInt    comm_max;   /* space at comment (only when reading header) */
-    int     hcrc;       /* true if there was or will be a header crc */
-    int     done;       /* true when done reading gzip header (not used
-                           when writing a gzip file) */
-} gz_header;
-
-typedef gz_header FAR *gz_headerp;
-
-/*
-   The application must update next_in and avail_in when avail_in has
-   dropped to zero. It must update next_out and avail_out when avail_out
-   has dropped to zero. The application must initialize zalloc, zfree and
-   opaque before calling the init function. All other fields are set by the
-   compression library and must not be updated by the application.
-
-   The opaque value provided by the application will be passed as the first
-   parameter for calls of zalloc and zfree. This can be useful for custom
-   memory management. The compression library attaches no meaning to the
-   opaque value.
-
-   zalloc must return Z_NULL if there is not enough memory for the object.
-   If zlib is used in a multi-threaded application, zalloc and zfree must be
-   thread safe.
-
-   On 16-bit systems, the functions zalloc and zfree must be able to allocate
-   exactly 65536 bytes, but will not be required to allocate more than this
-   if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS,
-   pointers returned by zalloc for objects of exactly 65536 bytes *must*
-   have their offset normalized to zero. The default allocation function
-   provided by this library ensures this (see zutil.c). To reduce memory
-   requirements and avoid any allocation of 64K objects, at the expense of
-   compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h).
-
-   The fields total_in and total_out can be used for statistics or
-   progress reports. After compression, total_in holds the total size of
-   the uncompressed data and may be saved for use in the decompressor
-   (particularly if the decompressor wants to decompress everything in
-   a single step).
-*/
-
-                        /* constants */
-
-#define Z_NO_FLUSH      0
-#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */
-#define Z_SYNC_FLUSH    2
-#define Z_FULL_FLUSH    3
-#define Z_FINISH        4
-#define Z_BLOCK         5
-/* Allowed flush values; see deflate() and inflate() below for details */
-
-#define Z_OK            0
-#define Z_STREAM_END    1
-#define Z_NEED_DICT     2
-#define Z_ERRNO        (-1)
-#define Z_STREAM_ERROR (-2)
-#define Z_DATA_ERROR   (-3)
-#define Z_MEM_ERROR    (-4)
-#define Z_BUF_ERROR    (-5)
-#define Z_VERSION_ERROR (-6)
-/* Return codes for the compression/decompression functions. Negative
- * values are errors, positive values are used for special but normal events.
- */
-
-#define Z_NO_COMPRESSION         0
-#define Z_BEST_SPEED             1
-#define Z_BEST_COMPRESSION       9
-#define Z_DEFAULT_COMPRESSION  (-1)
-/* compression levels */
-
-#define Z_FILTERED            1
-#define Z_HUFFMAN_ONLY        2
-#define Z_RLE                 3
-#define Z_FIXED               4
-#define Z_DEFAULT_STRATEGY    0
-/* compression strategy; see deflateInit2() below for details */
-
-#define Z_BINARY   0
-#define Z_TEXT     1
-#define Z_ASCII    Z_TEXT   /* for compatibility with 1.2.2 and earlier */
-#define Z_UNKNOWN  2
-/* Possible values of the data_type field (though see inflate()) */
-
-#define Z_DEFLATED   8
-/* The deflate compression method (the only one supported in this version) */
-
-#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
-
-#define zlib_version zlibVersion()
-/* for compatibility with versions < 1.0.2 */
-
-                        /* basic functions */
-
-ZEXTERN const char * ZEXPORT zlibVersion OF((void));
-/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
-   If the first character differs, the library code actually used is
-   not compatible with the zlib.h header file used by the application.
-   This check is automatically made by deflateInit and inflateInit.
- */
-
-/*
-ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));
-
-     Initializes the internal stream state for compression. The fields
-   zalloc, zfree and opaque must be initialized before by the caller.
-   If zalloc and zfree are set to Z_NULL, deflateInit updates them to
-   use default allocation functions.
-
-     The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
-   1 gives best speed, 9 gives best compression, 0 gives no compression at
-   all (the input data is simply copied a block at a time).
-   Z_DEFAULT_COMPRESSION requests a default compromise between speed and
-   compression (currently equivalent to level 6).
-
-     deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_STREAM_ERROR if level is not a valid compression level,
-   Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
-   with the version assumed by the caller (ZLIB_VERSION).
-   msg is set to null if there is no error message.  deflateInit does not
-   perform any compression: this will be done by deflate().
-*/
-
-
-ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
-/*
-    deflate compresses as much data as possible, and stops when the input
-  buffer becomes empty or the output buffer becomes full. It may introduce some
-  output latency (reading input without producing any output) except when
-  forced to flush.
-
-    The detailed semantics are as follows. deflate performs one or both of the
-  following actions:
-
-  - Compress more input starting at next_in and update next_in and avail_in
-    accordingly. If not all input can be processed (because there is not
-    enough room in the output buffer), next_in and avail_in are updated and
-    processing will resume at this point for the next call of deflate().
-
-  - Provide more output starting at next_out and update next_out and avail_out
-    accordingly. This action is forced if the parameter flush is non zero.
-    Forcing flush frequently degrades the compression ratio, so this parameter
-    should be set only when necessary (in interactive applications).
-    Some output may be provided even if flush is not set.
-
-  Before the call of deflate(), the application should ensure that at least
-  one of the actions is possible, by providing more input and/or consuming
-  more output, and updating avail_in or avail_out accordingly; avail_out
-  should never be zero before the call. The application can consume the
-  compressed output when it wants, for example when the output buffer is full
-  (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK
-  and with zero avail_out, it must be called again after making room in the
-  output buffer because there might be more output pending.
-
-    Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to
-  decide how much data to accumualte before producing output, in order to
-  maximize compression.
-
-    If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
-  flushed to the output buffer and the output is aligned on a byte boundary, so
-  that the decompressor can get all input data available so far. (In particular
-  avail_in is zero after the call if enough output space has been provided
-  before the call.)  Flushing may degrade compression for some compression
-  algorithms and so it should be used only when necessary.
-
-    If flush is set to Z_FULL_FLUSH, all output is flushed as with
-  Z_SYNC_FLUSH, and the compression state is reset so that decompression can
-  restart from this point if previous compressed data has been damaged or if
-  random access is desired. Using Z_FULL_FLUSH too often can seriously degrade
-  compression.
-
-    If deflate returns with avail_out == 0, this function must be called again
-  with the same value of the flush parameter and more output space (updated
-  avail_out), until the flush is complete (deflate returns with non-zero
-  avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that
-  avail_out is greater than six to avoid repeated flush markers due to
-  avail_out == 0 on return.
-
-    If the parameter flush is set to Z_FINISH, pending input is processed,
-  pending output is flushed and deflate returns with Z_STREAM_END if there
-  was enough output space; if deflate returns with Z_OK, this function must be
-  called again with Z_FINISH and more output space (updated avail_out) but no
-  more input data, until it returns with Z_STREAM_END or an error. After
-  deflate has returned Z_STREAM_END, the only possible operations on the
-  stream are deflateReset or deflateEnd.
-
-    Z_FINISH can be used immediately after deflateInit if all the compression
-  is to be done in a single step. In this case, avail_out must be at least
-  the value returned by deflateBound (see below). If deflate does not return
-  Z_STREAM_END, then it must be called again as described above.
-
-    deflate() sets strm->adler to the adler32 checksum of all input read
-  so far (that is, total_in bytes).
-
-    deflate() may update strm->data_type if it can make a good guess about
-  the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered
-  binary. This field is only for information purposes and does not affect
-  the compression algorithm in any manner.
-
-    deflate() returns Z_OK if some progress has been made (more input
-  processed or more output produced), Z_STREAM_END if all input has been
-  consumed and all output has been produced (only when flush is set to
-  Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
-  if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible
-  (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not
-  fatal, and deflate() can be called again with more input and more output
-  space to continue compressing.
-*/
-
-
-ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
-/*
-     All dynamically allocated data structures for this stream are freed.
-   This function discards any unprocessed input and does not flush any
-   pending output.
-
-     deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
-   stream state was inconsistent, Z_DATA_ERROR if the stream was freed
-   prematurely (some input or output was discarded). In the error case,
-   msg may be set but then points to a static string (which must not be
-   deallocated).
-*/
-
-
-/*
-ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
-
-     Initializes the internal stream state for decompression. The fields
-   next_in, avail_in, zalloc, zfree and opaque must be initialized before by
-   the caller. If next_in is not Z_NULL and avail_in is large enough (the exact
-   value depends on the compression method), inflateInit determines the
-   compression method from the zlib header and allocates all data structures
-   accordingly; otherwise the allocation will be deferred to the first call of
-   inflate.  If zalloc and zfree are set to Z_NULL, inflateInit updates them to
-   use default allocation functions.
-
-     inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
-   version assumed by the caller.  msg is set to null if there is no error
-   message. inflateInit does not perform any decompression apart from reading
-   the zlib header if present: this will be done by inflate().  (So next_in and
-   avail_in may be modified, but next_out and avail_out are unchanged.)
-*/
-
-
-ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
-/*
-    inflate decompresses as much data as possible, and stops when the input
-  buffer becomes empty or the output buffer becomes full. It may introduce
-  some output latency (reading input without producing any output) except when
-  forced to flush.
-
-  The detailed semantics are as follows. inflate performs one or both of the
-  following actions:
-
-  - Decompress more input starting at next_in and update next_in and avail_in
-    accordingly. If not all input can be processed (because there is not
-    enough room in the output buffer), next_in is updated and processing
-    will resume at this point for the next call of inflate().
-
-  - Provide more output starting at next_out and update next_out and avail_out
-    accordingly.  inflate() provides as much output as possible, until there
-    is no more input data or no more space in the output buffer (see below
-    about the flush parameter).
-
-  Before the call of inflate(), the application should ensure that at least
-  one of the actions is possible, by providing more input and/or consuming
-  more output, and updating the next_* and avail_* values accordingly.
-  The application can consume the uncompressed output when it wants, for
-  example when the output buffer is full (avail_out == 0), or after each
-  call of inflate(). If inflate returns Z_OK and with zero avail_out, it
-  must be called again after making room in the output buffer because there
-  might be more output pending.
-
-    The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH,
-  Z_FINISH, or Z_BLOCK. Z_SYNC_FLUSH requests that inflate() flush as much
-  output as possible to the output buffer. Z_BLOCK requests that inflate() stop
-  if and when it gets to the next deflate block boundary. When decoding the
-  zlib or gzip format, this will cause inflate() to return immediately after
-  the header and before the first block. When doing a raw inflate, inflate()
-  will go ahead and process the first block, and will return when it gets to
-  the end of that block, or when it runs out of data.
-
-    The Z_BLOCK option assists in appending to or combining deflate streams.
-  Also to assist in this, on return inflate() will set strm->data_type to the
-  number of unused bits in the last byte taken from strm->next_in, plus 64
-  if inflate() is currently decoding the last block in the deflate stream,
-  plus 128 if inflate() returned immediately after decoding an end-of-block
-  code or decoding the complete header up to just before the first byte of the
-  deflate stream. The end-of-block will not be indicated until all of the
-  uncompressed data from that block has been written to strm->next_out.  The
-  number of unused bits may in general be greater than seven, except when
-  bit 7 of data_type is set, in which case the number of unused bits will be
-  less than eight.
-
-    inflate() should normally be called until it returns Z_STREAM_END or an
-  error. However if all decompression is to be performed in a single step
-  (a single call of inflate), the parameter flush should be set to
-  Z_FINISH. In this case all pending input is processed and all pending
-  output is flushed; avail_out must be large enough to hold all the
-  uncompressed data. (The size of the uncompressed data may have been saved
-  by the compressor for this purpose.) The next operation on this stream must
-  be inflateEnd to deallocate the decompression state. The use of Z_FINISH
-  is never required, but can be used to inform inflate that a faster approach
-  may be used for the single inflate() call.
-
-     In this implementation, inflate() always flushes as much output as
-  possible to the output buffer, and always uses the faster approach on the
-  first call. So the only effect of the flush parameter in this implementation
-  is on the return value of inflate(), as noted below, or when it returns early
-  because Z_BLOCK is used.
-
-     If a preset dictionary is needed after this call (see inflateSetDictionary
-  below), inflate sets strm->adler to the adler32 checksum of the dictionary
-  chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
-  strm->adler to the adler32 checksum of all output produced so far (that is,
-  total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
-  below. At the end of the stream, inflate() checks that its computed adler32
-  checksum is equal to that saved by the compressor and returns Z_STREAM_END
-  only if the checksum is correct.
-
-    inflate() will decompress and check either zlib-wrapped or gzip-wrapped
-  deflate data.  The header type is detected automatically.  Any information
-  contained in the gzip header is not retained, so applications that need that
-  information should instead use raw inflate, see inflateInit2() below, or
-  inflateBack() and perform their own processing of the gzip header and
-  trailer.
-
-    inflate() returns Z_OK if some progress has been made (more input processed
-  or more output produced), Z_STREAM_END if the end of the compressed data has
-  been reached and all uncompressed output has been produced, Z_NEED_DICT if a
-  preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
-  corrupted (input stream not conforming to the zlib format or incorrect check
-  value), Z_STREAM_ERROR if the stream structure was inconsistent (for example
-  if next_in or next_out was NULL), Z_MEM_ERROR if there was not enough memory,
-  Z_BUF_ERROR if no progress is possible or if there was not enough room in the
-  output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and
-  inflate() can be called again with more input and more output space to
-  continue decompressing. If Z_DATA_ERROR is returned, the application may then
-  call inflateSync() to look for a good compression block if a partial recovery
-  of the data is desired.
-*/
-
-
-ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
-/*
-     All dynamically allocated data structures for this stream are freed.
-   This function discards any unprocessed input and does not flush any
-   pending output.
-
-     inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
-   was inconsistent. In the error case, msg may be set but then points to a
-   static string (which must not be deallocated).
-*/
-
-                        /* Advanced functions */
-
-/*
-    The following functions are needed only in some special applications.
-*/
-
-/*
-ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
-                                     int  level,
-                                     int  method,
-                                     int  windowBits,
-                                     int  memLevel,
-                                     int  strategy));
-
-     This is another version of deflateInit with more compression options. The
-   fields next_in, zalloc, zfree and opaque must be initialized before by
-   the caller.
-
-     The method parameter is the compression method. It must be Z_DEFLATED in
-   this version of the library.
-
-     The windowBits parameter is the base two logarithm of the window size
-   (the size of the history buffer). It should be in the range 8..15 for this
-   version of the library. Larger values of this parameter result in better
-   compression at the expense of memory usage. The default value is 15 if
-   deflateInit is used instead.
-
-     windowBits can also be -8..-15 for raw deflate. In this case, -windowBits
-   determines the window size. deflate() will then generate raw deflate data
-   with no zlib header or trailer, and will not compute an adler32 check value.
-
-     windowBits can also be greater than 15 for optional gzip encoding. Add
-   16 to windowBits to write a simple gzip header and trailer around the
-   compressed data instead of a zlib wrapper. The gzip header will have no
-   file name, no extra data, no comment, no modification time (set to zero),
-   no header crc, and the operating system will be set to 255 (unknown).  If a
-   gzip stream is being written, strm->adler is a crc32 instead of an adler32.
-
-     The memLevel parameter specifies how much memory should be allocated
-   for the internal compression state. memLevel=1 uses minimum memory but
-   is slow and reduces compression ratio; memLevel=9 uses maximum memory
-   for optimal speed. The default value is 8. See zconf.h for total memory
-   usage as a function of windowBits and memLevel.
-
-     The strategy parameter is used to tune the compression algorithm. Use the
-   value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
-   filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no
-   string match), or Z_RLE to limit match distances to one (run-length
-   encoding). Filtered data consists mostly of small values with a somewhat
-   random distribution. In this case, the compression algorithm is tuned to
-   compress them better. The effect of Z_FILTERED is to force more Huffman
-   coding and less string matching; it is somewhat intermediate between
-   Z_DEFAULT and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as fast as
-   Z_HUFFMAN_ONLY, but give better compression for PNG image data. The strategy
-   parameter only affects the compression ratio but not the correctness of the
-   compressed output even if it is not set appropriately.  Z_FIXED prevents the
-   use of dynamic Huffman codes, allowing for a simpler decoder for special
-   applications.
-
-      deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
-   method). msg is set to null if there is no error message.  deflateInit2 does
-   not perform any compression: this will be done by deflate().
-*/
-
-ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
-                                             const Bytef *dictionary,
-                                             uInt  dictLength));
-/*
-     Initializes the compression dictionary from the given byte sequence
-   without producing any compressed output. This function must be called
-   immediately after deflateInit, deflateInit2 or deflateReset, before any
-   call of deflate. The compressor and decompressor must use exactly the same
-   dictionary (see inflateSetDictionary).
-
-     The dictionary should consist of strings (byte sequences) that are likely
-   to be encountered later in the data to be compressed, with the most commonly
-   used strings preferably put towards the end of the dictionary. Using a
-   dictionary is most useful when the data to be compressed is short and can be
-   predicted with good accuracy; the data can then be compressed better than
-   with the default empty dictionary.
-
-     Depending on the size of the compression data structures selected by
-   deflateInit or deflateInit2, a part of the dictionary may in effect be
-   discarded, for example if the dictionary is larger than the window size in
-   deflate or deflate2. Thus the strings most likely to be useful should be
-   put at the end of the dictionary, not at the front. In addition, the
-   current implementation of deflate will use at most the window size minus
-   262 bytes of the provided dictionary.
-
-     Upon return of this function, strm->adler is set to the adler32 value
-   of the dictionary; the decompressor may later use this value to determine
-   which dictionary has been used by the compressor. (The adler32 value
-   applies to the whole dictionary even if only a subset of the dictionary is
-   actually used by the compressor.) If a raw deflate was requested, then the
-   adler32 value is not computed and strm->adler is not set.
-
-     deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
-   parameter is invalid (such as NULL dictionary) or the stream state is
-   inconsistent (for example if deflate has already been called for this stream
-   or if the compression method is bsort). deflateSetDictionary does not
-   perform any compression: this will be done by deflate().
-*/
-
-ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
-                                    z_streamp source));
-/*
-     Sets the destination stream as a complete copy of the source stream.
-
-     This function can be useful when several compression strategies will be
-   tried, for example when there are several ways of pre-processing the input
-   data with a filter. The streams that will be discarded should then be freed
-   by calling deflateEnd.  Note that deflateCopy duplicates the internal
-   compression state which can be quite large, so this strategy is slow and
-   can consume lots of memory.
-
-     deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
-   (such as zalloc being NULL). msg is left unchanged in both source and
-   destination.
-*/
-
-ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
-/*
-     This function is equivalent to deflateEnd followed by deflateInit,
-   but does not free and reallocate all the internal compression state.
-   The stream will keep the same compression level and any other attributes
-   that may have been set by deflateInit2.
-
-      deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent (such as zalloc or state being NULL).
-*/
-
-ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
-                                      int level,
-                                      int strategy));
-/*
-     Dynamically update the compression level and compression strategy.  The
-   interpretation of level and strategy is as in deflateInit2.  This can be
-   used to switch between compression and straight copy of the input data, or
-   to switch to a different kind of input data requiring a different
-   strategy. If the compression level is changed, the input available so far
-   is compressed with the old level (and may be flushed); the new level will
-   take effect only at the next call of deflate().
-
-     Before the call of deflateParams, the stream state must be set as for
-   a call of deflate(), since the currently available input may have to
-   be compressed and flushed. In particular, strm->avail_out must be non-zero.
-
-     deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
-   stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR
-   if strm->avail_out was zero.
-*/
-
-ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm,
-                                    int good_length,
-                                    int max_lazy,
-                                    int nice_length,
-                                    int max_chain));
-/*
-     Fine tune deflate's internal compression parameters.  This should only be
-   used by someone who understands the algorithm used by zlib's deflate for
-   searching for the best matching string, and even then only by the most
-   fanatic optimizer trying to squeeze out the last compressed bit for their
-   specific input data.  Read the deflate.c source code for the meaning of the
-   max_lazy, good_length, nice_length, and max_chain parameters.
-
-     deflateTune() can be called after deflateInit() or deflateInit2(), and
-   returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream.
- */
-
-ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm,
-                                       uLong sourceLen));
-/*
-     deflateBound() returns an upper bound on the compressed size after
-   deflation of sourceLen bytes.  It must be called after deflateInit()
-   or deflateInit2().  This would be used to allocate an output buffer
-   for deflation in a single pass, and so would be called before deflate().
-*/
-
-ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
-                                     int bits,
-                                     int value));
-/*
-     deflatePrime() inserts bits in the deflate output stream.  The intent
-  is that this function is used to start off the deflate output with the
-  bits leftover from a previous deflate stream when appending to it.  As such,
-  this function can only be used for raw deflate, and must be used before the
-  first deflate() call after a deflateInit2() or deflateReset().  bits must be
-  less than or equal to 16, and that many of the least significant bits of
-  value will be inserted in the output.
-
-      deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent.
-*/
-
-ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm,
-                                         gz_headerp head));
-/*
-      deflateSetHeader() provides gzip header information for when a gzip
-   stream is requested by deflateInit2().  deflateSetHeader() may be called
-   after deflateInit2() or deflateReset() and before the first call of
-   deflate().  The text, time, os, extra field, name, and comment information
-   in the provided gz_header structure are written to the gzip header (xflag is
-   ignored -- the extra flags are set according to the compression level).  The
-   caller must assure that, if not Z_NULL, name and comment are terminated with
-   a zero byte, and that if extra is not Z_NULL, that extra_len bytes are
-   available there.  If hcrc is true, a gzip header crc is included.  Note that
-   the current versions of the command-line version of gzip (up through version
-   1.3.x) do not support header crc's, and will report that it is a "multi-part
-   gzip file" and give up.
-
-      If deflateSetHeader is not used, the default gzip header has text false,
-   the time set to zero, and os set to 255, with no extra, name, or comment
-   fields.  The gzip header is returned to the default state by deflateReset().
-
-      deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent.
-*/
-
-/*
-ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
-                                     int  windowBits));
-
-     This is another version of inflateInit with an extra parameter. The
-   fields next_in, avail_in, zalloc, zfree and opaque must be initialized
-   before by the caller.
-
-     The windowBits parameter is the base two logarithm of the maximum window
-   size (the size of the history buffer).  It should be in the range 8..15 for
-   this version of the library. The default value is 15 if inflateInit is used
-   instead. windowBits must be greater than or equal to the windowBits value
-   provided to deflateInit2() while compressing, or it must be equal to 15 if
-   deflateInit2() was not used. If a compressed stream with a larger window
-   size is given as input, inflate() will return with the error code
-   Z_DATA_ERROR instead of trying to allocate a larger window.
-
-     windowBits can also be -8..-15 for raw inflate. In this case, -windowBits
-   determines the window size. inflate() will then process raw deflate data,
-   not looking for a zlib or gzip header, not generating a check value, and not
-   looking for any check values for comparison at the end of the stream. This
-   is for use with other formats that use the deflate compressed data format
-   such as zip.  Those formats provide their own check values. If a custom
-   format is developed using the raw deflate format for compressed data, it is
-   recommended that a check value such as an adler32 or a crc32 be applied to
-   the uncompressed data as is done in the zlib, gzip, and zip formats.  For
-   most applications, the zlib format should be used as is. Note that comments
-   above on the use in deflateInit2() applies to the magnitude of windowBits.
-
-     windowBits can also be greater than 15 for optional gzip decoding. Add
-   32 to windowBits to enable zlib and gzip decoding with automatic header
-   detection, or add 16 to decode only the gzip format (the zlib format will
-   return a Z_DATA_ERROR).  If a gzip stream is being decoded, strm->adler is
-   a crc32 instead of an adler32.
-
-     inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_STREAM_ERROR if a parameter is invalid (such as a null strm). msg
-   is set to null if there is no error message.  inflateInit2 does not perform
-   any decompression apart from reading the zlib header if present: this will
-   be done by inflate(). (So next_in and avail_in may be modified, but next_out
-   and avail_out are unchanged.)
-*/
-
-ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
-                                             const Bytef *dictionary,
-                                             uInt  dictLength));
-/*
-     Initializes the decompression dictionary from the given uncompressed byte
-   sequence. This function must be called immediately after a call of inflate,
-   if that call returned Z_NEED_DICT. The dictionary chosen by the compressor
-   can be determined from the adler32 value returned by that call of inflate.
-   The compressor and decompressor must use exactly the same dictionary (see
-   deflateSetDictionary).  For raw inflate, this function can be called
-   immediately after inflateInit2() or inflateReset() and before any call of
-   inflate() to set the dictionary.  The application must insure that the
-   dictionary that was used for compression is provided.
-
-     inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
-   parameter is invalid (such as NULL dictionary) or the stream state is
-   inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
-   expected one (incorrect adler32 value). inflateSetDictionary does not
-   perform any decompression: this will be done by subsequent calls of
-   inflate().
-*/
-
-ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
-/*
-    Skips invalid compressed data until a full flush point (see above the
-  description of deflate with Z_FULL_FLUSH) can be found, or until all
-  available input is skipped. No output is provided.
-
-    inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
-  if no more input was provided, Z_DATA_ERROR if no flush point has been found,
-  or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
-  case, the application may save the current current value of total_in which
-  indicates where valid compressed data was found. In the error case, the
-  application may repeatedly call inflateSync, providing more input each time,
-  until success or end of the input data.
-*/
-
-ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
-                                    z_streamp source));
-/*
-     Sets the destination stream as a complete copy of the source stream.
-
-     This function can be useful when randomly accessing a large stream.  The
-   first pass through the stream can periodically record the inflate state,
-   allowing restarting inflate at those points when randomly accessing the
-   stream.
-
-     inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
-   (such as zalloc being NULL). msg is left unchanged in both source and
-   destination.
-*/
-
-ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
-/*
-     This function is equivalent to inflateEnd followed by inflateInit,
-   but does not free and reallocate all the internal decompression state.
-   The stream will keep attributes that may have been set by inflateInit2.
-
-      inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent (such as zalloc or state being NULL).
-*/
-
-ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm,
-                                     int bits,
-                                     int value));
-/*
-     This function inserts bits in the inflate input stream.  The intent is
-  that this function is used to start inflating at a bit position in the
-  middle of a byte.  The provided bits will be used before any bytes are used
-  from next_in.  This function should only be used with raw inflate, and
-  should be used before the first inflate() call after inflateInit2() or
-  inflateReset().  bits must be less than or equal to 16, and that many of the
-  least significant bits of value will be inserted in the input.
-
-      inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent.
-*/
-
-ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm,
-                                         gz_headerp head));
-/*
-      inflateGetHeader() requests that gzip header information be stored in the
-   provided gz_header structure.  inflateGetHeader() may be called after
-   inflateInit2() or inflateReset(), and before the first call of inflate().
-   As inflate() processes the gzip stream, head->done is zero until the header
-   is completed, at which time head->done is set to one.  If a zlib stream is
-   being decoded, then head->done is set to -1 to indicate that there will be
-   no gzip header information forthcoming.  Note that Z_BLOCK can be used to
-   force inflate() to return immediately after header processing is complete
-   and before any actual data is decompressed.
-
-      The text, time, xflags, and os fields are filled in with the gzip header
-   contents.  hcrc is set to true if there is a header CRC.  (The header CRC
-   was valid if done is set to one.)  If extra is not Z_NULL, then extra_max
-   contains the maximum number of bytes to write to extra.  Once done is true,
-   extra_len contains the actual extra field length, and extra contains the
-   extra field, or that field truncated if extra_max is less than extra_len.
-   If name is not Z_NULL, then up to name_max characters are written there,
-   terminated with a zero unless the length is greater than name_max.  If
-   comment is not Z_NULL, then up to comm_max characters are written there,
-   terminated with a zero unless the length is greater than comm_max.  When
-   any of extra, name, or comment are not Z_NULL and the respective field is
-   not present in the header, then that field is set to Z_NULL to signal its
-   absence.  This allows the use of deflateSetHeader() with the returned
-   structure to duplicate the header.  However if those fields are set to
-   allocated memory, then the application will need to save those pointers
-   elsewhere so that they can be eventually freed.
-
-      If inflateGetHeader is not used, then the header information is simply
-   discarded.  The header is always checked for validity, including the header
-   CRC if present.  inflateReset() will reset the process to discard the header
-   information.  The application would need to call inflateGetHeader() again to
-   retrieve the header from the next gzip stream.
-
-      inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent.
-*/
-
-/*
-ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
-                                        unsigned char FAR *window));
-
-     Initialize the internal stream state for decompression using inflateBack()
-   calls.  The fields zalloc, zfree and opaque in strm must be initialized
-   before the call.  If zalloc and zfree are Z_NULL, then the default library-
-   derived memory allocation routines are used.  windowBits is the base two
-   logarithm of the window size, in the range 8..15.  window is a caller
-   supplied buffer of that size.  Except for special applications where it is
-   assured that deflate was used with small window sizes, windowBits must be 15
-   and a 32K byte window must be supplied to be able to decompress general
-   deflate streams.
-
-     See inflateBack() for the usage of these routines.
-
-     inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
-   the paramaters are invalid, Z_MEM_ERROR if the internal state could not
-   be allocated, or Z_VERSION_ERROR if the version of the library does not
-   match the version of the header file.
-*/
-
-typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *));
-typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned));
-
-ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
-                                    in_func in, void FAR *in_desc,
-                                    out_func out, void FAR *out_desc));
-/*
-     inflateBack() does a raw inflate with a single call using a call-back
-   interface for input and output.  This is more efficient than inflate() for
-   file i/o applications in that it avoids copying between the output and the
-   sliding window by simply making the window itself the output buffer.  This
-   function trusts the application to not change the output buffer passed by
-   the output function, at least until inflateBack() returns.
-
-     inflateBackInit() must be called first to allocate the internal state
-   and to initialize the state with the user-provided window buffer.
-   inflateBack() may then be used multiple times to inflate a complete, raw
-   deflate stream with each call.  inflateBackEnd() is then called to free
-   the allocated state.
-
-     A raw deflate stream is one with no zlib or gzip header or trailer.
-   This routine would normally be used in a utility that reads zip or gzip
-   files and writes out uncompressed files.  The utility would decode the
-   header and process the trailer on its own, hence this routine expects
-   only the raw deflate stream to decompress.  This is different from the
-   normal behavior of inflate(), which expects either a zlib or gzip header and
-   trailer around the deflate stream.
-
-     inflateBack() uses two subroutines supplied by the caller that are then
-   called by inflateBack() for input and output.  inflateBack() calls those
-   routines until it reads a complete deflate stream and writes out all of the
-   uncompressed data, or until it encounters an error.  The function's
-   parameters and return types are defined above in the in_func and out_func
-   typedefs.  inflateBack() will call in(in_desc, &buf) which should return the
-   number of bytes of provided input, and a pointer to that input in buf.  If
-   there is no input available, in() must return zero--buf is ignored in that
-   case--and inflateBack() will return a buffer error.  inflateBack() will call
-   out(out_desc, buf, len) to write the uncompressed data buf[0..len-1].  out()
-   should return zero on success, or non-zero on failure.  If out() returns
-   non-zero, inflateBack() will return with an error.  Neither in() nor out()
-   are permitted to change the contents of the window provided to
-   inflateBackInit(), which is also the buffer that out() uses to write from.
-   The length written by out() will be at most the window size.  Any non-zero
-   amount of input may be provided by in().
-
-     For convenience, inflateBack() can be provided input on the first call by
-   setting strm->next_in and strm->avail_in.  If that input is exhausted, then
-   in() will be called.  Therefore strm->next_in must be initialized before
-   calling inflateBack().  If strm->next_in is Z_NULL, then in() will be called
-   immediately for input.  If strm->next_in is not Z_NULL, then strm->avail_in
-   must also be initialized, and then if strm->avail_in is not zero, input will
-   initially be taken from strm->next_in[0 .. strm->avail_in - 1].
-
-     The in_desc and out_desc parameters of inflateBack() is passed as the
-   first parameter of in() and out() respectively when they are called.  These
-   descriptors can be optionally used to pass any information that the caller-
-   supplied in() and out() functions need to do their job.
-
-     On return, inflateBack() will set strm->next_in and strm->avail_in to
-   pass back any unused input that was provided by the last in() call.  The
-   return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR
-   if in() or out() returned an error, Z_DATA_ERROR if there was a format
-   error in the deflate stream (in which case strm->msg is set to indicate the
-   nature of the error), or Z_STREAM_ERROR if the stream was not properly
-   initialized.  In the case of Z_BUF_ERROR, an input or output error can be
-   distinguished using strm->next_in which will be Z_NULL only if in() returned
-   an error.  If strm->next is not Z_NULL, then the Z_BUF_ERROR was due to
-   out() returning non-zero.  (in() will always be called before out(), so
-   strm->next_in is assured to be defined if out() returns non-zero.)  Note
-   that inflateBack() cannot return Z_OK.
-*/
-
-ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm));
-/*
-     All memory allocated by inflateBackInit() is freed.
-
-     inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream
-   state was inconsistent.
-*/
-
-ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
-/* Return flags indicating compile-time options.
-
-    Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other:
-     1.0: size of uInt
-     3.2: size of uLong
-     5.4: size of voidpf (pointer)
-     7.6: size of z_off_t
-
-    Compiler, assembler, and debug options:
-     8: DEBUG
-     9: ASMV or ASMINF -- use ASM code
-     10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention
-     11: 0 (reserved)
-
-    One-time table building (smaller code, but not thread-safe if true):
-     12: BUILDFIXED -- build static block decoding tables when needed
-     13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed
-     14,15: 0 (reserved)
-
-    Library content (indicates missing functionality):
-     16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking
-                          deflate code when not needed)
-     17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect
-                    and decode gzip streams (to avoid linking crc code)
-     18-19: 0 (reserved)
-
-    Operation variations (changes in library functionality):
-     20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate
-     21: FASTEST -- deflate algorithm with only one, lowest compression level
-     22,23: 0 (reserved)
-
-    The sprintf variant used by gzprintf (zero is best):
-     24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format
-     25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure!
-     26: 0 = returns value, 1 = void -- 1 means inferred string length returned
-
-    Remainder:
-     27-31: 0 (reserved)
- */
-
-
-                        /* utility functions */
-
-/*
-     The following utility functions are implemented on top of the
-   basic stream-oriented functions. To simplify the interface, some
-   default options are assumed (compression level and memory usage,
-   standard memory allocation functions). The source code of these
-   utility functions can easily be modified if you need special options.
-*/
-
-ZEXTERN int ZEXPORT compress OF((Bytef *dest,   uLongf *destLen,
-                                 const Bytef *source, uLong sourceLen));
-/*
-     Compresses the source buffer into the destination buffer.  sourceLen is
-   the byte length of the source buffer. Upon entry, destLen is the total
-   size of the destination buffer, which must be at least the value returned
-   by compressBound(sourceLen). Upon exit, destLen is the actual size of the
-   compressed buffer.
-     This function can be used to compress a whole file at once if the
-   input file is mmap'ed.
-     compress returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_BUF_ERROR if there was not enough room in the output
-   buffer.
-*/
-
-ZEXTERN int ZEXPORT compress2 OF((Bytef *dest,   uLongf *destLen,
-                                  const Bytef *source, uLong sourceLen,
-                                  int level));
-/*
-     Compresses the source buffer into the destination buffer. The level
-   parameter has the same meaning as in deflateInit.  sourceLen is the byte
-   length of the source buffer. Upon entry, destLen is the total size of the
-   destination buffer, which must be at least the value returned by
-   compressBound(sourceLen). Upon exit, destLen is the actual size of the
-   compressed buffer.
-
-     compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_BUF_ERROR if there was not enough room in the output buffer,
-   Z_STREAM_ERROR if the level parameter is invalid.
-*/
-
-ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen));
-/*
-     compressBound() returns an upper bound on the compressed size after
-   compress() or compress2() on sourceLen bytes.  It would be used before
-   a compress() or compress2() call to allocate the destination buffer.
-*/
-
-ZEXTERN int ZEXPORT uncompress OF((Bytef *dest,   uLongf *destLen,
-                                   const Bytef *source, uLong sourceLen));
-/*
-     Decompresses the source buffer into the destination buffer.  sourceLen is
-   the byte length of the source buffer. Upon entry, destLen is the total
-   size of the destination buffer, which must be large enough to hold the
-   entire uncompressed data. (The size of the uncompressed data must have
-   been saved previously by the compressor and transmitted to the decompressor
-   by some mechanism outside the scope of this compression library.)
-   Upon exit, destLen is the actual size of the compressed buffer.
-     This function can be used to decompress a whole file at once if the
-   input file is mmap'ed.
-
-     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_BUF_ERROR if there was not enough room in the output
-   buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete.
-*/
-
-
-typedef voidp gzFile;
-
-ZEXTERN gzFile ZEXPORT gzopen  OF((const char *path, const char *mode));
-/*
-     Opens a gzip (.gz) file for reading or writing. The mode parameter
-   is as in fopen ("rb" or "wb") but can also include a compression level
-   ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for
-   Huffman only compression as in "wb1h", or 'R' for run-length encoding
-   as in "wb1R". (See the description of deflateInit2 for more information
-   about the strategy parameter.)
-
-     gzopen can be used to read a file which is not in gzip format; in this
-   case gzread will directly read from the file without decompression.
-
-     gzopen returns NULL if the file could not be opened or if there was
-   insufficient memory to allocate the (de)compression state; errno
-   can be checked to distinguish the two cases (if errno is zero, the
-   zlib error is Z_MEM_ERROR).  */
-
-ZEXTERN gzFile ZEXPORT gzdopen  OF((int fd, const char *mode));
-/*
-     gzdopen() associates a gzFile with the file descriptor fd.  File
-   descriptors are obtained from calls like open, dup, creat, pipe or
-   fileno (in the file has been previously opened with fopen).
-   The mode parameter is as in gzopen.
-     The next call of gzclose on the returned gzFile will also close the
-   file descriptor fd, just like fclose(fdopen(fd), mode) closes the file
-   descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode).
-     gzdopen returns NULL if there was insufficient memory to allocate
-   the (de)compression state.
-*/
-
-ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
-/*
-     Dynamically update the compression level or strategy. See the description
-   of deflateInit2 for the meaning of these parameters.
-     gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
-   opened for writing.
-*/
-
-ZEXTERN int ZEXPORT    gzread  OF((gzFile file, voidp buf, unsigned len));
-/*
-     Reads the given number of uncompressed bytes from the compressed file.
-   If the input file was not in gzip format, gzread copies the given number
-   of bytes into the buffer.
-     gzread returns the number of uncompressed bytes actually read (0 for
-   end of file, -1 for error). */
-
-ZEXTERN int ZEXPORT    gzwrite OF((gzFile file,
-                                   voidpc buf, unsigned len));
-/*
-     Writes the given number of uncompressed bytes into the compressed file.
-   gzwrite returns the number of uncompressed bytes actually written
-   (0 in case of error).
-*/
-
-ZEXTERN int ZEXPORTVA   gzprintf OF((gzFile file, const char *format, ...));
-/*
-     Converts, formats, and writes the args to the compressed file under
-   control of the format string, as in fprintf. gzprintf returns the number of
-   uncompressed bytes actually written (0 in case of error).  The number of
-   uncompressed bytes written is limited to 4095. The caller should assure that
-   this limit is not exceeded. If it is exceeded, then gzprintf() will return
-   return an error (0) with nothing written. In this case, there may also be a
-   buffer overflow with unpredictable consequences, which is possible only if
-   zlib was compiled with the insecure functions sprintf() or vsprintf()
-   because the secure snprintf() or vsnprintf() functions were not available.
-*/
-
-ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
-/*
-      Writes the given null-terminated string to the compressed file, excluding
-   the terminating null character.
-      gzputs returns the number of characters written, or -1 in case of error.
-*/
-
-ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len));
-/*
-      Reads bytes from the compressed file until len-1 characters are read, or
-   a newline character is read and transferred to buf, or an end-of-file
-   condition is encountered.  The string is then terminated with a null
-   character.
-      gzgets returns buf, or Z_NULL in case of error.
-*/
-
-ZEXTERN int ZEXPORT    gzputc OF((gzFile file, int c));
-/*
-      Writes c, converted to an unsigned char, into the compressed file.
-   gzputc returns the value that was written, or -1 in case of error.
-*/
-
-ZEXTERN int ZEXPORT    gzgetc OF((gzFile file));
-/*
-      Reads one byte from the compressed file. gzgetc returns this byte
-   or -1 in case of end of file or error.
-*/
-
-ZEXTERN int ZEXPORT    gzungetc OF((int c, gzFile file));
-/*
-      Push one character back onto the stream to be read again later.
-   Only one character of push-back is allowed.  gzungetc() returns the
-   character pushed, or -1 on failure.  gzungetc() will fail if a
-   character has been pushed but not read yet, or if c is -1. The pushed
-   character will be discarded if the stream is repositioned with gzseek()
-   or gzrewind().
-*/
-
-ZEXTERN int ZEXPORT    gzflush OF((gzFile file, int flush));
-/*
-     Flushes all pending output into the compressed file. The parameter
-   flush is as in the deflate() function. The return value is the zlib
-   error number (see function gzerror below). gzflush returns Z_OK if
-   the flush parameter is Z_FINISH and all output could be flushed.
-     gzflush should be called only when strictly necessary because it can
-   degrade compression.
-*/
-
-ZEXTERN z_off_t ZEXPORT    gzseek OF((gzFile file,
-                                      z_off_t offset, int whence));
-/*
-      Sets the starting position for the next gzread or gzwrite on the
-   given compressed file. The offset represents a number of bytes in the
-   uncompressed data stream. The whence parameter is defined as in lseek(2);
-   the value SEEK_END is not supported.
-     If the file is opened for reading, this function is emulated but can be
-   extremely slow. If the file is opened for writing, only forward seeks are
-   supported; gzseek then compresses a sequence of zeroes up to the new
-   starting position.
-
-      gzseek returns the resulting offset location as measured in bytes from
-   the beginning of the uncompressed stream, or -1 in case of error, in
-   particular if the file is opened for writing and the new starting position
-   would be before the current position.
-*/
-
-ZEXTERN int ZEXPORT    gzrewind OF((gzFile file));
-/*
-     Rewinds the given file. This function is supported only for reading.
-
-   gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
-*/
-
-ZEXTERN z_off_t ZEXPORT    gztell OF((gzFile file));
-/*
-     Returns the starting position for the next gzread or gzwrite on the
-   given compressed file. This position represents a number of bytes in the
-   uncompressed data stream.
-
-   gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
-*/
-
-ZEXTERN int ZEXPORT gzeof OF((gzFile file));
-/*
-     Returns 1 when EOF has previously been detected reading the given
-   input stream, otherwise zero.
-*/
-
-ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
-/*
-     Returns 1 if file is being read directly without decompression, otherwise
-   zero.
-*/
-
-ZEXTERN int ZEXPORT    gzclose OF((gzFile file));
-/*
-     Flushes all pending output if necessary, closes the compressed file
-   and deallocates all the (de)compression state. The return value is the zlib
-   error number (see function gzerror below).
-*/
-
-ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
-/*
-     Returns the error message for the last error which occurred on the
-   given compressed file. errnum is set to zlib error number. If an
-   error occurred in the file system and not in the compression library,
-   errnum is set to Z_ERRNO and the application may consult errno
-   to get the exact error code.
-*/
-
-ZEXTERN void ZEXPORT gzclearerr OF((gzFile file));
-/*
-     Clears the error and end-of-file flags for file. This is analogous to the
-   clearerr() function in stdio. This is useful for continuing to read a gzip
-   file that is being written concurrently.
-*/
-
-                        /* checksum functions */
-
-/*
-     These functions are not related to compression but are exported
-   anyway because they might be useful in applications using the
-   compression library.
-*/
-
-ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
-/*
-     Update a running Adler-32 checksum with the bytes buf[0..len-1] and
-   return the updated checksum. If buf is NULL, this function returns
-   the required initial value for the checksum.
-   An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
-   much faster. Usage example:
-
-     uLong adler = adler32(0L, Z_NULL, 0);
-
-     while (read_buffer(buffer, length) != EOF) {
-       adler = adler32(adler, buffer, length);
-     }
-     if (adler != original_adler) error();
-*/
-
-#ifndef __ECOS__
-ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
-                                          z_off_t len2));
-/*
-     Combine two Adler-32 checksums into one.  For two sequences of bytes, seq1
-   and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
-   each, adler1 and adler2.  adler32_combine() returns the Adler-32 checksum of
-   seq1 and seq2 concatenated, requiring only adler1, adler2, and len2.
-*/
-
-ZEXTERN uLong ZEXPORT crc32   OF((uLong crc, const Bytef *buf, uInt len));
-/*
-     Update a running CRC-32 with the bytes buf[0..len-1] and return the
-   updated CRC-32. If buf is NULL, this function returns the required initial
-   value for the for the crc. Pre- and post-conditioning (one's complement) is
-   performed within this function so it shouldn't be done by the application.
-   Usage example:
-
-     uLong crc = crc32(0L, Z_NULL, 0);
-
-     while (read_buffer(buffer, length) != EOF) {
-       crc = crc32(crc, buffer, length);
-     }
-     if (crc != original_crc) error();
-*/
-#endif // __ECOS__
-
-                        /* various hacks, don't look :) */
-
-/* deflateInit and inflateInit are macros to allow checking the zlib version
- * and the compiler's view of z_stream:
- */
-ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level,
-                                     const char *version, int stream_size));
-ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm,
-                                     const char *version, int stream_size));
-ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int  level, int  method,
-                                      int windowBits, int memLevel,
-                                      int strategy, const char *version,
-                                      int stream_size));
-ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int  windowBits,
-                                      const char *version, int stream_size));
-ZEXTERN int ZEXPORT inflateBackInit_ OF((z_stream FAR *strm, int windowBits,
-                                         unsigned char FAR *window,
-                                         const char *version,
-                                         int stream_size));
-#define deflateInit(strm, level) \
-        deflateInit_((strm), (level),       ZLIB_VERSION, sizeof(z_stream))
-#define inflateInit(strm) \
-        inflateInit_((strm),                ZLIB_VERSION, sizeof(z_stream))
-#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
-        deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
-                      (strategy),           ZLIB_VERSION, sizeof(z_stream))
-#define inflateInit2(strm, windowBits) \
-        inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
-#define inflateBackInit(strm, windowBits, window) \
-        inflateBackInit_((strm), (windowBits), (window), \
-        ZLIB_VERSION, sizeof(z_stream))
-
-ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2));
-
-/*
-     Combine two CRC-32 check values into one.  For two sequences of bytes,
-   seq1 and seq2 with lengths len1 and len2, CRC-32 check values were
-   calculated for each, crc1 and crc2.  crc32_combine() returns the CRC-32
-   check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and
-   len2.
-*/
-
-
-#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
-    struct internal_state {int dummy;}; /* hack for buggy compilers */
-#endif
-
-ZEXTERN const char   * ZEXPORT zError           OF((int));
-ZEXTERN int            ZEXPORT inflateSyncPoint OF((z_streamp z));
-ZEXTERN const uLongf * ZEXPORT get_crc_table    OF((void));
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ZLIB_H */
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/ChangeLog b/components/dfs/filesystems/jffs2/cyg/compress/src/ChangeLog
deleted file mode 100644
index dfdd0295e8..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/ChangeLog
+++ /dev/null
@@ -1,854 +0,0 @@
-                ChangeLog file for zlib
-
-Changes in 1.2.2 (3 October 2004)
-Changes in 1.2.3 (18 July 2005)
-- Apply security vulnerability fixes to contrib/infback9 as well
-- Clean up some text files (carriage returns, trailing space)
-- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant]
-
-Changes in 1.2.2.4 (11 July 2005)
-- Add inflatePrime() function for starting inflation at bit boundary
-- Avoid some Visual C warnings in deflate.c
-- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit
-  compile
-- Fix some spelling errors in comments [Betts]
-- Correct inflateInit2() error return documentation in zlib.h
-- Added zran.c example of compressed data random access to examples
-  directory, shows use of inflatePrime()
-- Fix cast for assignments to strm->state in inflate.c and infback.c
-- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer]
-- Move declarations of gf2 functions to right place in crc32.c [Oberhumer]
-- Add cast in trees.c t avoid a warning [Oberhumer]
-- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer]
-- Update make_vms.com [Zinser]
-- Initialize state->write in inflateReset() since copied in inflate_fast()
-- Be more strict on incomplete code sets in inflate_table() and increase
-  ENOUGH and MAXD -- this repairs a possible security vulnerability for
-  invalid inflate input.  Thanks to Tavis Ormandy and Markus Oberhumer for
-  discovering the vulnerability and providing test cases.
-- Add ia64 support to configure for HP-UX [Smith]
-- Add error return to gzread() for format or i/o error [Levin]
-- Use malloc.h for OS/2 [Necasek]
-
-Changes in 1.2.2.3 (27 May 2005)
-- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile
-- Typecast fread() return values in gzio.c [Vollant]
-- Remove trailing space in minigzip.c outmode (VC++ can't deal with it)
-- Fix crc check bug in gzread() after gzungetc() [Heiner]
-- Add the deflateTune() function to adjust internal compression parameters
-- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack)
-- Remove an incorrect assertion in examples/zpipe.c
-- Add C++ wrapper in infback9.h [Donais]
-- Fix bug in inflateCopy() when decoding fixed codes
-- Note in zlib.h how much deflateSetDictionary() actually uses
-- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used)
-- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer]
-- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer]
-- Add gzdirect() function to indicate transparent reads
-- Update contrib/minizip [Vollant]
-- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer]
-- Add casts in crc32.c to avoid warnings [Oberhumer]
-- Add contrib/masmx64 [Vollant]
-- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant]
-
-Changes in 1.2.2.2 (30 December 2004)
-- Replace structure assignments in deflate.c and inflate.c with zmemcpy to
-  avoid implicit memcpy calls (portability for no-library compilation)
-- Increase sprintf() buffer size in gzdopen() to allow for large numbers
-- Add INFLATE_STRICT to check distances against zlib header
-- Improve WinCE errno handling and comments [Chang]
-- Remove comment about no gzip header processing in FAQ
-- Add Z_FIXED strategy option to deflateInit2() to force fixed trees
-- Add updated make_vms.com [Coghlan], update README
-- Create a new "examples" directory, move gzappend.c there, add zpipe.c,
-  fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html.
-- Add FAQ entry and comments in deflate.c on uninitialized memory access
-- Add Solaris 9 make options in configure [Gilbert]
-- Allow strerror() usage in gzio.c for STDC
-- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer]
-- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant]
-- Use z_off_t for adler32_combine() and crc32_combine() lengths
-- Make adler32() much faster for small len
-- Use OS_CODE in deflate() default gzip header
-
-Changes in 1.2.2.1 (31 October 2004)
-- Allow inflateSetDictionary() call for raw inflate
-- Fix inflate header crc check bug for file names and comments
-- Add deflateSetHeader() and gz_header structure for custom gzip headers
-- Add inflateGetheader() to retrieve gzip headers
-- Add crc32_combine() and adler32_combine() functions
-- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list
-- Use zstreamp consistently in zlib.h (inflate_back functions)
-- Remove GUNZIP condition from definition of inflate_mode in inflate.h
-  and in contrib/inflate86/inffast.S [Truta, Anderson]
-- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson]
-- Update projects/README.projects and projects/visualc6 [Truta]
-- Update win32/DLL_FAQ.txt [Truta]
-- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta]
-- Deprecate Z_ASCII; use Z_TEXT instead [Truta]
-- Use a new algorithm for setting strm->data_type in trees.c [Truta]
-- Do not define an exit() prototype in zutil.c unless DEBUG defined
-- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta]
-- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate()
-- Fix Darwin build version identification [Peterson]
-
-- Update zlib.h comments on gzip in-memory processing
-- Set adler to 1 in inflateReset() to support Java test suite [Walles]
-- Add contrib/dotzlib [Ravn]
-- Update win32/DLL_FAQ.txt [Truta]
-- Update contrib/minizip [Vollant]
-- Move contrib/visual-basic.txt to old/ [Truta]
-- Fix assembler builds in projects/visualc6/ [Truta]
-
-Changes in 1.2.1.2 (9 September 2004)
-- Update INDEX file
-- Fix trees.c to update strm->data_type (no one ever noticed!)
-- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]
-- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)
-- Add limited multitasking protection to DYNAMIC_CRC_TABLE
-- Add NO_vsnprintf for VMS in zutil.h [Mozilla]
-- Don't declare strerror() under VMS [Mozilla]
-- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize
-- Update contrib/ada [Anisimkov]
-- Update contrib/minizip [Vollant]
-- Fix configure to not hardcode directories for Darwin [Peterson]
-- Fix gzio.c to not return error on empty files [Brown]
-- Fix indentation; update version in contrib/delphi/ZLib.pas and
-  contrib/pascal/zlibpas.pas [Truta]
-- Update mkasm.bat in contrib/masmx86 [Truta]
-- Update contrib/untgz [Truta]
-- Add projects/README.projects [Truta]
-- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]
-- Update win32/DLL_FAQ.txt [Truta]
-- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]
-- Remove an unnecessary assignment to curr in inftrees.c [Truta]
-- Add OS/2 to exe builds in configure [Poltorak]
-- Remove err dummy parameter in zlib.h [Kientzle]
-
-Changes in 1.2.1.1 (9 January 2004)
-- Update email address in README
-- Several FAQ updates
-- Fix a big fat bug in inftrees.c that prevented decoding valid
-  dynamic blocks with only literals and no distance codes --
-  Thanks to "Hot Emu" for the bug report and sample file
-- Add a note to puff.c on no distance codes case.
-
-Changes in 1.2.1 (17 November 2003)
-- Remove a tab in contrib/gzappend/gzappend.c
-- Update some interfaces in contrib for new zlib functions
-- Update zlib version number in some contrib entries
-- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]
-- Support shared libraries on Hurd and KFreeBSD [Brown]
-- Fix error in NO_DIVIDE option of adler32.c
-
-Changes in 1.2.0.8 (4 November 2003)
-- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas
-- Add experimental NO_DIVIDE #define in adler32.c
-    - Possibly faster on some processors (let me know if it is)
-- Correct Z_BLOCK to not return on first inflate call if no wrap
-- Fix strm->data_type on inflate() return to correctly indicate EOB
-- Add deflatePrime() function for appending in the middle of a byte
-- Add contrib/gzappend for an example of appending to a stream
-- Update win32/DLL_FAQ.txt [Truta]
-- Delete Turbo C comment in README [Truta]
-- Improve some indentation in zconf.h [Truta]
-- Fix infinite loop on bad input in configure script [Church]
-- Fix gzeof() for concatenated gzip files [Johnson]
-- Add example to contrib/visual-basic.txt [Michael B.]
-- Add -p to mkdir's in Makefile.in [vda]
-- Fix configure to properly detect presence or lack of printf functions
-- Add AS400 support [Monnerat]
-- Add a little Cygwin support [Wilson]
-
-Changes in 1.2.0.7 (21 September 2003)
-- Correct some debug formats in contrib/infback9
-- Cast a type in a debug statement in trees.c
-- Change search and replace delimiter in configure from % to # [Beebe]
-- Update contrib/untgz to 0.2 with various fixes [Truta]
-- Add build support for Amiga [Nikl]
-- Remove some directories in old that have been updated to 1.2
-- Add dylib building for Mac OS X in configure and Makefile.in
-- Remove old distribution stuff from Makefile
-- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X
-- Update links in README
-
-Changes in 1.2.0.6 (13 September 2003)
-- Minor FAQ updates
-- Update contrib/minizip to 1.00 [Vollant]
-- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
-- Update POSTINC comment for 68060 [Nikl]
-- Add contrib/infback9 with deflate64 decoding (unsupported)
-- For MVS define NO_vsnprintf and undefine FAR [van Burik]
-- Add pragma for fdopen on MVS [van Burik]
-
-Changes in 1.2.0.5 (8 September 2003)
-- Add OF to inflateBackEnd() declaration in zlib.h
-- Remember start when using gzdopen in the middle of a file
-- Use internal off_t counters in gz* functions to properly handle seeks
-- Perform more rigorous check for distance-too-far in inffast.c
-- Add Z_BLOCK flush option to return from inflate at block boundary
-- Set strm->data_type on return from inflate
-    - Indicate bits unused, if at block boundary, and if in last block
-- Replace size_t with ptrdiff_t in crc32.c, and check for correct size
-- Add condition so old NO_DEFLATE define still works for compatibility
-- FAQ update regarding the Windows DLL [Truta]
-- INDEX update: add qnx entry, remove aix entry [Truta]
-- Install zlib.3 into mandir [Wilson]
-- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
-- Adapt the zlib interface to the new DLL convention guidelines [Truta]
-- Introduce ZLIB_WINAPI macro to allow the export of functions using
-  the WINAPI calling convention, for Visual Basic [Vollant, Truta]
-- Update msdos and win32 scripts and makefiles [Truta]
-- Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
-- Add contrib/ada [Anisimkov]
-- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
-- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
-- Add contrib/masm686 [Truta]
-- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
-  [Truta, Vollant]
-- Update contrib/delphi; rename to contrib/pascal; add example [Truta]
-- Remove contrib/delphi2; add a new contrib/delphi [Truta]
-- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
-  and fix some method prototypes [Truta]
-- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
-  [Truta]
-- Avoid the use of backslash (\) in contrib/minizip [Vollant]
-- Fix file time handling in contrib/untgz; update makefiles [Truta]
-- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
-  [Vollant]
-- Remove contrib/vstudio/vc15_16 [Vollant]
-- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
-- Update README.contrib [Truta]
-- Invert the assignment order of match_head and s->prev[...] in
-  INSERT_STRING [Truta]
-- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
-  [Truta]
-- Compare function pointers with 0, not with NULL or Z_NULL [Truta]
-- Fix prototype of syncsearch in inflate.c [Truta]
-- Introduce ASMINF macro to be enabled when using an ASM implementation
-  of inflate_fast [Truta]
-- Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
-- Modify test_gzio in example.c to take a single file name as a
-  parameter [Truta]
-- Exit the example.c program if gzopen fails [Truta]
-- Add type casts around strlen in example.c [Truta]
-- Remove casting to sizeof in minigzip.c; give a proper type
-  to the variable compared with SUFFIX_LEN [Truta]
-- Update definitions of STDC and STDC99 in zconf.h [Truta]
-- Synchronize zconf.h with the new Windows DLL interface [Truta]
-- Use SYS16BIT instead of __32BIT__ to distinguish between
-  16- and 32-bit platforms [Truta]
-- Use far memory allocators in small 16-bit memory models for
-  Turbo C [Truta]
-- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
-  zlibCompileFlags [Truta]
-- Cygwin has vsnprintf [Wilson]
-- In Windows16, OS_CODE is 0, as in MSDOS [Truta]
-- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
-
-Changes in 1.2.0.4 (10 August 2003)
-- Minor FAQ updates
-- Be more strict when checking inflateInit2's windowBits parameter
-- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
-- Add gzip wrapper option to deflateInit2 using windowBits
-- Add updated QNX rule in configure and qnx directory [Bonnefoy]
-- Make inflate distance-too-far checks more rigorous
-- Clean up FAR usage in inflate
-- Add casting to sizeof() in gzio.c and minigzip.c
-
-Changes in 1.2.0.3 (19 July 2003)
-- Fix silly error in gzungetc() implementation [Vollant]
-- Update contrib/minizip and contrib/vstudio [Vollant]
-- Fix printf format in example.c
-- Correct cdecl support in zconf.in.h [Anisimkov]
-- Minor FAQ updates
-
-Changes in 1.2.0.2 (13 July 2003)
-- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons
-- Attempt to avoid warnings in crc32.c for pointer-int conversion
-- Add AIX to configure, remove aix directory [Bakker]
-- Add some casts to minigzip.c
-- Improve checking after insecure sprintf() or vsprintf() calls
-- Remove #elif's from crc32.c
-- Change leave label to inf_leave in inflate.c and infback.c to avoid
-  library conflicts
-- Remove inflate gzip decoding by default--only enable gzip decoding by
-  special request for stricter backward compatibility
-- Add zlibCompileFlags() function to return compilation information
-- More typecasting in deflate.c to avoid warnings
-- Remove leading underscore from _Capital #defines [Truta]
-- Fix configure to link shared library when testing
-- Add some Windows CE target adjustments [Mai]
-- Remove #define ZLIB_DLL in zconf.h [Vollant]
-- Add zlib.3 [Rodgers]
-- Update RFC URL in deflate.c and algorithm.txt [Mai]
-- Add zlib_dll_FAQ.txt to contrib [Truta]
-- Add UL to some constants [Truta]
-- Update minizip and vstudio [Vollant]
-- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h
-- Expand use of NO_DUMMY_DECL to avoid all dummy structures
-- Added iostream3 to contrib [Schwardt]
-- Replace rewind() with fseek() for WinCE [Truta]
-- Improve setting of zlib format compression level flags
-    - Report 0 for huffman and rle strategies and for level == 0 or 1
-    - Report 2 only for level == 6
-- Only deal with 64K limit when necessary at compile time [Truta]
-- Allow TOO_FAR check to be turned off at compile time [Truta]
-- Add gzclearerr() function [Souza]
-- Add gzungetc() function
-
-Changes in 1.2.0.1 (17 March 2003)
-- Add Z_RLE strategy for run-length encoding [Truta]
-    - When Z_RLE requested, restrict matches to distance one
-    - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
-- Correct FASTEST compilation to allow level == 0
-- Clean up what gets compiled for FASTEST
-- Incorporate changes to zconf.in.h [Vollant]
-    - Refine detection of Turbo C need for dummy returns
-    - Refine ZLIB_DLL compilation
-    - Include additional header file on VMS for off_t typedef
-- Try to use _vsnprintf where it supplants vsprintf [Vollant]
-- Add some casts in inffast.c
-- Enchance comments in zlib.h on what happens if gzprintf() tries to
-  write more than 4095 bytes before compression
-- Remove unused state from inflateBackEnd()
-- Remove exit(0) from minigzip.c, example.c
-- Get rid of all those darn tabs
-- Add "check" target to Makefile.in that does the same thing as "test"
-- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
-- Update contrib/inflate86 [Anderson]
-- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
-- Add msdos and win32 directories with makefiles [Truta]
-- More additions and improvements to the FAQ
-
-Changes in 1.2.0 (9 March 2003)
-- New and improved inflate code
-    - About 20% faster
-    - Does not allocate 32K window unless and until needed
-    - Automatically detects and decompresses gzip streams
-    - Raw inflate no longer needs an extra dummy byte at end
-    - Added inflateBack functions using a callback interface--even faster
-      than inflate, useful for file utilities (gzip, zip)
-    - Added inflateCopy() function to record state for random access on
-      externally generated deflate streams (e.g. in gzip files)
-    - More readable code (I hope)
-- New and improved crc32()
-    - About 50% faster, thanks to suggestions from Rodney Brown
-- Add deflateBound() and compressBound() functions
-- Fix memory leak in deflateInit2()
-- Permit setting dictionary for raw deflate (for parallel deflate)
-- Fix const declaration for gzwrite()
-- Check for some malloc() failures in gzio.c
-- Fix bug in gzopen() on single-byte file 0x1f
-- Fix bug in gzread() on concatenated file with 0x1f at end of buffer
-  and next buffer doesn't start with 0x8b
-- Fix uncompress() to return Z_DATA_ERROR on truncated input
-- Free memory at end of example.c
-- Remove MAX #define in trees.c (conflicted with some libraries)
-- Fix static const's in deflate.c, gzio.c, and zutil.[ch]
-- Declare malloc() and free() in gzio.c if STDC not defined
-- Use malloc() instead of calloc() in zutil.c if int big enough
-- Define STDC for AIX
-- Add aix/ with approach for compiling shared library on AIX
-- Add HP-UX support for shared libraries in configure
-- Add OpenUNIX support for shared libraries in configure
-- Use $cc instead of gcc to build shared library
-- Make prefix directory if needed when installing
-- Correct Macintosh avoidance of typedef Byte in zconf.h
-- Correct Turbo C memory allocation when under Linux
-- Use libz.a instead of -lz in Makefile (assure use of compiled library)
-- Update configure to check for snprintf or vsnprintf functions and their
-  return value, warn during make if using an insecure function
-- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that
-  is lost when library is used--resolution is to build new zconf.h
-- Documentation improvements (in zlib.h):
-    - Document raw deflate and inflate
-    - Update RFCs URL
-    - Point out that zlib and gzip formats are different
-    - Note that Z_BUF_ERROR is not fatal
-    - Document string limit for gzprintf() and possible buffer overflow
-    - Note requirement on avail_out when flushing
-    - Note permitted values of flush parameter of inflate()
-- Add some FAQs (and even answers) to the FAQ
-- Add contrib/inflate86/ for x86 faster inflate
-- Add contrib/blast/ for PKWare Data Compression Library decompression
-- Add contrib/puff/ simple inflate for deflate format description
-
-Changes in 1.1.4 (11 March 2002)
-- ZFREE was repeated on same allocation on some error conditions.
-  This creates a security problem described in
-  http://www.zlib.org/advisory-2002-03-11.txt
-- Returned incorrect error (Z_MEM_ERROR) on some invalid data
-- Avoid accesses before window for invalid distances with inflate window
-  less than 32K.
-- force windowBits > 8 to avoid a bug in the encoder for a window size
-  of 256 bytes. (A complete fix will be available in 1.1.5).
-
-Changes in 1.1.3 (9 July 1998)
-- fix "an inflate input buffer bug that shows up on rare but persistent
-  occasions" (Mark)
-- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
-- fix gzseek(..., SEEK_SET) in write mode
-- fix crc check after a gzeek (Frank Faubert)
-- fix miniunzip when the last entry in a zip file is itself a zip file
-  (J Lillge)
-- add contrib/asm586 and contrib/asm686 (Brian Raiter)
-  See http://www.muppetlabs.com/~breadbox/software/assembly.html
-- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
-- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
-- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
-- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
-- added a FAQ file
-
-- Support gzdopen on Mac with Metrowerks (Jason Linhart)
-- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
-- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
-- avoid some warnings with Borland C (Tom Tanner)
-- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
-- emulate utime() for WIN32 in contrib/untgz  (Gilles Vollant)
-- allow several arguments to configure (Tim Mooney, Frodo Looijaard)
-- use libdir and includedir in Makefile.in (Tim Mooney)
-- support shared libraries on OSF1 V4 (Tim Mooney)
-- remove so_locations in "make clean"  (Tim Mooney)
-- fix maketree.c compilation error (Glenn, Mark)
-- Python interface to zlib now in Python 1.5 (Jeremy Hylton)
-- new Makefile.riscos (Rich Walker)
-- initialize static descriptors in trees.c for embedded targets (Nick Smith)
-- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
-- add the OS/2 files in Makefile.in too (Andrew Zabolotny)
-- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
-- fix maketree.c to allow clean compilation of inffixed.h (Mark)
-- fix parameter check in deflateCopy (Gunther Nikl)
-- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
-- Many portability patches by Christian Spieler:
-  . zutil.c, zutil.h: added "const" for zmem*
-  . Make_vms.com: fixed some typos
-  . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
-  . msdos/Makefile.msc: remove "default rtl link library" info from obj files
-  . msdos/Makefile.*: use model-dependent name for the built zlib library
-  . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
-     new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
-- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
-- replace __far with _far for better portability (Christian Spieler, Tom Lane)
-- fix test for errno.h in configure (Tim Newsham)
-
-Changes in 1.1.2 (19 March 98)
-- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
-  See http://www.winimage.com/zLibDll/unzip.html
-- preinitialize the inflate tables for fixed codes, to make the code
-  completely thread safe (Mark)
-- some simplifications and slight speed-up to the inflate code (Mark)
-- fix gzeof on non-compressed files (Allan Schrum)
-- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
-- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
-- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
-- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
-- do not wrap extern "C" around system includes (Tom Lane)
-- mention zlib binding for TCL in README (Andreas Kupries)
-- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
-- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
-- allow "configure --prefix $HOME" (Tim Mooney)
-- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
-- move Makefile.sas to amiga/Makefile.sas
-
-Changes in 1.1.1 (27 Feb 98)
-- fix macros _tr_tally_* in deflate.h for debug mode  (Glenn Randers-Pehrson)
-- remove block truncation heuristic which had very marginal effect for zlib
-  (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
-  compression ratio on some files. This also allows inlining _tr_tally for
-  matches in deflate_slow.
-- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
-
-Changes in 1.1.0 (24 Feb 98)
-- do not return STREAM_END prematurely in inflate (John Bowler)
-- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
-- compile with -DFASTEST to get compression code optimized for speed only
-- in minigzip, try mmap'ing the input file first (Miguel Albrecht)
-- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
-  on Sun but significant on HP)
-
-- add a pointer to experimental unzip library in README (Gilles Vollant)
-- initialize variable gcc in configure (Chris Herborth)
-
-Changes in 1.0.9 (17 Feb 1998)
-- added gzputs and gzgets functions
-- do not clear eof flag in gzseek (Mark Diekhans)
-- fix gzseek for files in transparent mode (Mark Diekhans)
-- do not assume that vsprintf returns the number of bytes written (Jens Krinke)
-- replace EXPORT with ZEXPORT to avoid conflict with other programs
-- added compress2 in zconf.h, zlib.def, zlib.dnt
-- new asm code from Gilles Vollant in contrib/asm386
-- simplify the inflate code (Mark):
- . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
- . ZALLOC the length list in inflate_trees_fixed() instead of using stack
- . ZALLOC the value area for huft_build() instead of using stack
- . Simplify Z_FINISH check in inflate()
-
-- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
-- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
-- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
-  the declaration of FAR (Gilles VOllant)
-- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
-- read_buf buf parameter of type Bytef* instead of charf*
-- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
-- do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
-- fix check for presence of directories in "make install" (Ian Willis)
-
-Changes in 1.0.8 (27 Jan 1998)
-- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
-- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
-- added compress2() to allow setting the compression level
-- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
-- use constant arrays for the static trees in trees.c instead of computing
-  them at run time (thanks to Ken Raeburn for this suggestion). To create
-  trees.h, compile with GEN_TREES_H and run "make test".
-- check return code of example in "make test" and display result
-- pass minigzip command line options to file_compress
-- simplifying code of inflateSync to avoid gcc 2.8 bug
-
-- support CC="gcc -Wall" in configure -s (QingLong)
-- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
-- fix test for shared library support to avoid compiler warnings
-- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
-- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
-- do not use fdopen for Metrowerks on Mac (Brad Pettit))
-- add checks for gzputc and gzputc in example.c
-- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
-- use const for the CRC table (Ken Raeburn)
-- fixed "make uninstall" for shared libraries
-- use Tracev instead of Trace in infblock.c
-- in example.c use correct compressed length for test_sync
-- suppress +vnocompatwarnings in configure for HPUX (not always supported)
-
-Changes in 1.0.7 (20 Jan 1998)
-- fix gzseek which was broken in write mode
-- return error for gzseek to negative absolute position
-- fix configure for Linux (Chun-Chung Chen)
-- increase stack space for MSC (Tim Wegner)
-- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
-- define EXPORTVA for gzprintf (Gilles Vollant)
-- added man page zlib.3 (Rick Rodgers)
-- for contrib/untgz, fix makedir() and improve Makefile
-
-- check gzseek in write mode in example.c
-- allocate extra buffer for seeks only if gzseek is actually called
-- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
-- add inflateSyncPoint in zconf.h
-- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
-
-Changes in 1.0.6 (19 Jan 1998)
-- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
-  gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
-- Fix a deflate bug occurring only with compression level 0 (thanks to
-  Andy Buckler for finding this one).
-- In minigzip, pass transparently also the first byte for .Z files.
-- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
-- check Z_FINISH in inflate (thanks to Marc Schluper)
-- Implement deflateCopy (thanks to Adam Costello)
-- make static libraries by default in configure, add --shared option.
-- move MSDOS or Windows specific files to directory msdos
-- suppress the notion of partial flush to simplify the interface
-  (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
-- suppress history buffer provided by application to simplify the interface
-  (this feature was not implemented anyway in 1.0.4)
-- next_in and avail_in must be initialized before calling inflateInit or
-  inflateInit2
-- add EXPORT in all exported functions (for Windows DLL)
-- added Makefile.nt (thanks to Stephen Williams)
-- added the unsupported "contrib" directory:
-   contrib/asm386/ by Gilles Vollant <info@winimage.com>
-        386 asm code replacing longest_match().
-   contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
-        A C++ I/O streams interface to the zlib gz* functions
-   contrib/iostream2/  by Tyge L�vset <Tyge.Lovset@cmr.no>
-        Another C++ I/O streams interface
-   contrib/untgz/  by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
-        A very simple tar.gz file extractor using zlib
-   contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
-        How to use compress(), uncompress() and the gz* functions from VB.
-- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
-  level) in minigzip (thanks to Tom Lane)
-
-- use const for rommable constants in deflate
-- added test for gzseek and gztell in example.c
-- add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
-- add undocumented function zError to convert error code to string
-  (for Tim Smithers)
-- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.
-- Use default memcpy for Symantec MSDOS compiler.
-- Add EXPORT keyword for check_func (needed for Windows DLL)
-- add current directory to LD_LIBRARY_PATH for "make test"
-- create also a link for libz.so.1
-- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
-- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
-- added -soname for Linux in configure (Chun-Chung Chen,
-- assign numbers to the exported functions in zlib.def (for Windows DLL)
-- add advice in zlib.h for best usage of deflateSetDictionary
-- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
-- allow compilation with ANSI keywords only enabled for TurboC in large model
-- avoid "versionString"[0] (Borland bug)
-- add NEED_DUMMY_RETURN for Borland
-- use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
-- allow compilation with CC
-- defined STDC for OS/2 (David Charlap)
-- limit external names to 8 chars for MVS (Thomas Lund)
-- in minigzip.c, use static buffers only for 16-bit systems
-- fix suffix check for "minigzip -d foo.gz"
-- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
-- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
-- added makelcc.bat for lcc-win32 (Tom St Denis)
-- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
-- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
-- check for unistd.h in configure (for off_t)
-- remove useless check parameter in inflate_blocks_free
-- avoid useless assignment of s->check to itself in inflate_blocks_new
-- do not flush twice in gzclose (thanks to Ken Raeburn)
-- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
-- use NO_ERRNO_H instead of enumeration of operating systems with errno.h
-- work around buggy fclose on pipes for HP/UX
-- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
-- fix configure if CC is already equal to gcc
-
-Changes in 1.0.5 (3 Jan 98)
-- Fix inflate to terminate gracefully when fed corrupted or invalid data
-- Use const for rommable constants in inflate
-- Eliminate memory leaks on error conditions in inflate
-- Removed some vestigial code in inflate
-- Update web address in README
-
-Changes in 1.0.4 (24 Jul 96)
-- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
-  bit, so the decompressor could decompress all the correct data but went
-  on to attempt decompressing extra garbage data. This affected minigzip too.
-- zlibVersion and gzerror return const char* (needed for DLL)
-- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
-- use z_error only for DEBUG (avoid problem with DLLs)
-
-Changes in 1.0.3 (2 Jul 96)
-- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
-  small and medium models; this makes the library incompatible with previous
-  versions for these models. (No effect in large model or on other systems.)
-- return OK instead of BUF_ERROR if previous deflate call returned with
-  avail_out as zero but there is nothing to do
-- added memcmp for non STDC compilers
-- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
-- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
-- better check for 16-bit mode MSC (avoids problem with Symantec)
-
-Changes in 1.0.2 (23 May 96)
-- added Windows DLL support
-- added a function zlibVersion (for the DLL support)
-- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
-- Bytef is define's instead of typedef'd only for Borland C
-- avoid reading uninitialized memory in example.c
-- mention in README that the zlib format is now RFC1950
-- updated Makefile.dj2
-- added algorithm.doc
-
-Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
-- fix array overlay in deflate.c which sometimes caused bad compressed data
-- fix inflate bug with empty stored block
-- fix MSDOS medium model which was broken in 0.99
-- fix deflateParams() which could generated bad compressed data.
-- Bytef is define'd instead of typedef'ed (work around Borland bug)
-- added an INDEX file
-- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
-  Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
-- speed up adler32 for modern machines without auto-increment
-- added -ansi for IRIX in configure
-- static_init_done in trees.c is an int
-- define unlink as delete for VMS
-- fix configure for QNX
-- add configure branch for SCO and HPUX
-- avoid many warnings (unused variables, dead assignments, etc...)
-- no fdopen for BeOS
-- fix the Watcom fix for 32 bit mode (define FAR as empty)
-- removed redefinition of Byte for MKWERKS
-- work around an MWKERKS bug (incorrect merge of all .h files)
-
-Changes in 0.99 (27 Jan 96)
-- allow preset dictionary shared between compressor and decompressor
-- allow compression level 0 (no compression)
-- add deflateParams in zlib.h: allow dynamic change of compression level
-  and compression strategy.
-- test large buffers and deflateParams in example.c
-- add optional "configure" to build zlib as a shared library
-- suppress Makefile.qnx, use configure instead
-- fixed deflate for 64-bit systems (detected on Cray)
-- fixed inflate_blocks for 64-bit systems (detected on Alpha)
-- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
-- always return Z_BUF_ERROR when deflate() has nothing to do
-- deflateInit and inflateInit are now macros to allow version checking
-- prefix all global functions and types with z_ with -DZ_PREFIX
-- make falloc completely reentrant (inftrees.c)
-- fixed very unlikely race condition in ct_static_init
-- free in reverse order of allocation to help memory manager
-- use zlib-1.0/* instead of zlib/* inside the tar.gz
-- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
-  -Wconversion -Wstrict-prototypes -Wmissing-prototypes"
-- allow gzread on concatenated .gz files
-- deflateEnd now returns Z_DATA_ERROR if it was premature
-- deflate is finally (?) fully deterministic (no matches beyond end of input)
-- Document Z_SYNC_FLUSH
-- add uninstall in Makefile
-- Check for __cpluplus in zlib.h
-- Better test in ct_align for partial flush
-- avoid harmless warnings for Borland C++
-- initialize hash_head in deflate.c
-- avoid warning on fdopen (gzio.c) for HP cc -Aa
-- include stdlib.h for STDC compilers
-- include errno.h for Cray
-- ignore error if ranlib doesn't exist
-- call ranlib twice for NeXTSTEP
-- use exec_prefix instead of prefix for libz.a
-- renamed ct_* as _tr_* to avoid conflict with applications
-- clear z->msg in inflateInit2 before any error return
-- initialize opaque in example.c, gzio.c, deflate.c and inflate.c
-- fixed typo in zconf.h (_GNUC__ => __GNUC__)
-- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
-- fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
-- in fcalloc, normalize pointer if size > 65520 bytes
-- don't use special fcalloc for 32 bit Borland C++
-- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
-- use Z_BINARY instead of BINARY
-- document that gzclose after gzdopen will close the file
-- allow "a" as mode in gzopen.
-- fix error checking in gzread
-- allow skipping .gz extra-field on pipes
-- added reference to Perl interface in README
-- put the crc table in FAR data (I dislike more and more the medium model :)
-- added get_crc_table
-- added a dimension to all arrays (Borland C can't count).
-- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
-- guard against multiple inclusion of *.h (for precompiled header on Mac)
-- Watcom C pretends to be Microsoft C small model even in 32 bit mode.
-- don't use unsized arrays to avoid silly warnings by Visual C++:
-     warning C4746: 'inflate_mask' : unsized array treated as  '__far'
-     (what's wrong with far data in far model?).
-- define enum out of inflate_blocks_state to allow compilation with C++
-
-Changes in 0.95 (16 Aug 95)
-- fix MSDOS small and medium model (now easier to adapt to any compiler)
-- inlined send_bits
-- fix the final (:-) bug for deflate with flush (output was correct but
-  not completely flushed in rare occasions).
-- default window size is same for compression and decompression
-  (it's now sufficient to set MAX_WBITS in zconf.h).
-- voidp -> voidpf and voidnp -> voidp (for consistency with other
-  typedefs and because voidnp was not near in large model).
-
-Changes in 0.94 (13 Aug 95)
-- support MSDOS medium model
-- fix deflate with flush (could sometimes generate bad output)
-- fix deflateReset (zlib header was incorrectly suppressed)
-- added support for VMS
-- allow a compression level in gzopen()
-- gzflush now calls fflush
-- For deflate with flush, flush even if no more input is provided.
-- rename libgz.a as libz.a
-- avoid complex expression in infcodes.c triggering Turbo C bug
-- work around a problem with gcc on Alpha (in INSERT_STRING)
-- don't use inline functions (problem with some gcc versions)
-- allow renaming of Byte, uInt, etc... with #define.
-- avoid warning about (unused) pointer before start of array in deflate.c
-- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
-- avoid reserved word 'new' in trees.c
-
-Changes in 0.93 (25 June 95)
-- temporarily disable inline functions
-- make deflate deterministic
-- give enough lookahead for PARTIAL_FLUSH
-- Set binary mode for stdin/stdout in minigzip.c for OS/2
-- don't even use signed char in inflate (not portable enough)
-- fix inflate memory leak for segmented architectures
-
-Changes in 0.92 (3 May 95)
-- don't assume that char is signed (problem on SGI)
-- Clear bit buffer when starting a stored block
-- no memcpy on Pyramid
-- suppressed inftest.c
-- optimized fill_window, put longest_match inline for gcc
-- optimized inflate on stored blocks.
-- untabify all sources to simplify patches
-
-Changes in 0.91 (2 May 95)
-- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
-- Document the memory requirements in zconf.h
-- added "make install"
-- fix sync search logic in inflateSync
-- deflate(Z_FULL_FLUSH) now works even if output buffer too short
-- after inflateSync, don't scare people with just "lo world"
-- added support for DJGPP
-
-Changes in 0.9 (1 May 95)
-- don't assume that zalloc clears the allocated memory (the TurboC bug
-  was Mark's bug after all :)
-- let again gzread copy uncompressed data unchanged (was working in 0.71)
-- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
-- added a test of inflateSync in example.c
-- moved MAX_WBITS to zconf.h because users might want to change that.
-- document explicitly that zalloc(64K) on MSDOS must return a normalized
-  pointer (zero offset)
-- added Makefiles for Microsoft C, Turbo C, Borland C++
-- faster crc32()
-
-Changes in 0.8 (29 April 95)
-- added fast inflate (inffast.c)
-- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
-  is incompatible with previous versions of zlib which returned Z_OK.
-- work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
-  (actually that was not a compiler bug, see 0.81 above)
-- gzread no longer reads one extra byte in certain cases
-- In gzio destroy(), don't reference a freed structure
-- avoid many warnings for MSDOS
-- avoid the ERROR symbol which is used by MS Windows
-
-Changes in 0.71 (14 April 95)
-- Fixed more MSDOS compilation problems :( There is still a bug with
-  TurboC large model.
-
-Changes in 0.7 (14 April 95)
-- Added full inflate support.
-- Simplified the crc32() interface. The pre- and post-conditioning
-  (one's complement) is now done inside crc32(). WARNING: this is
-  incompatible with previous versions; see zlib.h for the new usage.
-
-Changes in 0.61 (12 April 95)
-- workaround for a bug in TurboC. example and minigzip now work on MSDOS.
-
-Changes in 0.6 (11 April 95)
-- added minigzip.c
-- added gzdopen to reopen a file descriptor as gzFile
-- added transparent reading of non-gziped files in gzread.
-- fixed bug in gzread (don't read crc as data)
-- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
-- don't allocate big arrays in the stack (for MSDOS)
-- fix some MSDOS compilation problems
-
-Changes in 0.5:
-- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
-  not yet Z_FULL_FLUSH.
-- support decompression but only in a single step (forced Z_FINISH)
-- added opaque object for zalloc and zfree.
-- added deflateReset and inflateReset
-- added a variable zlib_version for consistency checking.
-- renamed the 'filter' parameter of deflateInit2 as 'strategy'.
-  Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
-
-Changes in 0.4:
-- avoid "zip" everywhere, use zlib instead of ziplib.
-- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
-  if compression method == 8.
-- added adler32 and crc32
-- renamed deflateOptions as deflateInit2, call one or the other but not both
-- added the method parameter for deflateInit2.
-- added inflateInit2
-- simplied considerably deflateInit and inflateInit by not supporting
-  user-provided history buffer. This is supported only in deflateInit2
-  and inflateInit2.
-
-Changes in 0.3:
-- prefix all macro names with Z_
-- use Z_FINISH instead of deflateEnd to finish compression.
-- added Z_HUFFMAN_ONLY
-- added gzerror()
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/FAQ b/components/dfs/filesystems/jffs2/cyg/compress/src/FAQ
deleted file mode 100644
index 441d910daa..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/FAQ
+++ /dev/null
@@ -1,339 +0,0 @@
-
-                Frequently Asked Questions about zlib
-
-
-If your question is not there, please check the zlib home page
-http://www.zlib.org which may have more recent information.
-The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
-
-
- 1. Is zlib Y2K-compliant?
-
-    Yes. zlib doesn't handle dates.
-
- 2. Where can I get a Windows DLL version?
-
-    The zlib sources can be compiled without change to produce a DLL.
-    See the file win32/DLL_FAQ.txt in the zlib distribution.
-    Pointers to the precompiled DLL are found in the zlib web site at
-    http://www.zlib.org.
-
- 3. Where can I get a Visual Basic interface to zlib?
-
-    See
-        * http://www.dogma.net/markn/articles/zlibtool/zlibtool.htm
-        * contrib/visual-basic.txt in the zlib distribution
-        * win32/DLL_FAQ.txt in the zlib distribution
-
- 4. compress() returns Z_BUF_ERROR.
-
-    Make sure that before the call of compress, the length of the compressed
-    buffer is equal to the total size of the compressed buffer and not
-    zero. For Visual Basic, check that this parameter is passed by reference
-    ("as any"), not by value ("as long").
-
- 5. deflate() or inflate() returns Z_BUF_ERROR.
-
-    Before making the call, make sure that avail_in and avail_out are not
-    zero. When setting the parameter flush equal to Z_FINISH, also make sure
-    that avail_out is big enough to allow processing all pending input.
-    Note that a Z_BUF_ERROR is not fatal--another call to deflate() or
-    inflate() can be made with more input or output space. A Z_BUF_ERROR
-    may in fact be unavoidable depending on how the functions are used, since
-    it is not possible to tell whether or not there is more output pending
-    when strm.avail_out returns with zero.
-
- 6. Where's the zlib documentation (man pages, etc.)?
-
-    It's in zlib.h for the moment, and Francis S. Lin has converted it to a
-    web page zlib.html. Volunteers to transform this to Unix-style man pages,
-    please contact us (zlib@gzip.org). Examples of zlib usage are in the files
-    example.c and minigzip.c.
-
- 7. Why don't you use GNU autoconf or libtool or ...?
-
-    Because we would like to keep zlib as a very small and simple
-    package. zlib is rather portable and doesn't need much configuration.
-
- 8. I found a bug in zlib.
-
-    Most of the time, such problems are due to an incorrect usage of
-    zlib. Please try to reproduce the problem with a small program and send
-    the corresponding source to us at zlib@gzip.org . Do not send
-    multi-megabyte data files without prior agreement.
-
- 9. Why do I get "undefined reference to gzputc"?
-
-    If "make test" produces something like
-
-       example.o(.text+0x154): undefined reference to `gzputc'
-
-    check that you don't have old files libz.* in /usr/lib, /usr/local/lib or
-    /usr/X11R6/lib. Remove any old versions, then do "make install".
-
-10. I need a Delphi interface to zlib.
-
-    See the contrib/delphi directory in the zlib distribution.
-
-11. Can zlib handle .zip archives?
-
-    Not by itself, no.  See the directory contrib/minizip in the zlib
-    distribution.
-
-12. Can zlib handle .Z files?
-
-    No, sorry. You have to spawn an uncompress or gunzip subprocess, or adapt
-    the code of uncompress on your own.
-
-13. How can I make a Unix shared library?
-
-    make clean
-    ./configure -s
-    make
-
-14. How do I install a shared zlib library on Unix?
-
-    After the above, then:
-
-    make install
-
-    However, many flavors of Unix come with a shared zlib already installed.
-    Before going to the trouble of compiling a shared version of zlib and
-    trying to install it, you may want to check if it's already there! If you
-    can #include <zlib.h>, it's there. The -lz option will probably link to it.
-
-15. I have a question about OttoPDF.
-
-    We are not the authors of OttoPDF. The real author is on the OttoPDF web
-    site: Joel Hainley, jhainley@myndkryme.com.
-
-16. Can zlib decode Flate data in an Adobe PDF file?
-
-    Yes. See http://www.fastio.com/ (ClibPDF), or http://www.pdflib.com/ .
-    To modify PDF forms, see http://sourceforge.net/projects/acroformtool/ .
-
-17. Why am I getting this "register_frame_info not found" error on Solaris?
-
-    After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib
-    generates an error such as:
-
-        ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so:
-        symbol __register_frame_info: referenced symbol not found
-
-    The symbol __register_frame_info is not part of zlib, it is generated by
-    the C compiler (cc or gcc). You must recompile applications using zlib
-    which have this problem. This problem is specific to Solaris. See
-    http://www.sunfreeware.com for Solaris versions of zlib and applications
-    using zlib.
-
-18. Why does gzip give an error on a file I make with compress/deflate?
-
-    The compress and deflate functions produce data in the zlib format, which
-    is different and incompatible with the gzip format. The gz* functions in
-    zlib on the other hand use the gzip format. Both the zlib and gzip
-    formats use the same compressed data format internally, but have different
-    headers and trailers around the compressed data.
-
-19. Ok, so why are there two different formats?
-
-    The gzip format was designed to retain the directory information about
-    a single file, such as the name and last modification date. The zlib
-    format on the other hand was designed for in-memory and communication
-    channel applications, and has a much more compact header and trailer and
-    uses a faster integrity check than gzip.
-
-20. Well that's nice, but how do I make a gzip file in memory?
-
-    You can request that deflate write the gzip format instead of the zlib
-    format using deflateInit2(). You can also request that inflate decode
-    the gzip format using inflateInit2(). Read zlib.h for more details.
-
-21. Is zlib thread-safe?
-
-    Yes. However any library routines that zlib uses and any application-
-    provided memory allocation routines must also be thread-safe. zlib's gz*
-    functions use stdio library routines, and most of zlib's functions use the
-    library memory allocation routines by default. zlib's Init functions allow
-    for the application to provide custom memory allocation routines.
-
-    Of course, you should only operate on any given zlib or gzip stream from a
-    single thread at a time.
-
-22. Can I use zlib in my commercial application?
-
-    Yes. Please read the license in zlib.h.
-
-23. Is zlib under the GNU license?
-
-    No. Please read the license in zlib.h.
-
-24. The license says that altered source versions must be "plainly marked". So
-    what exactly do I need to do to meet that requirement?
-
-    You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h. In
-    particular, the final version number needs to be changed to "f", and an
-    identification string should be appended to ZLIB_VERSION. Version numbers
-    x.x.x.f are reserved for modifications to zlib by others than the zlib
-    maintainers. For example, if the version of the base zlib you are altering
-    is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and
-    ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3". You can also
-    update the version strings in deflate.c and inftrees.c.
-
-    For altered source distributions, you should also note the origin and
-    nature of the changes in zlib.h, as well as in ChangeLog and README, along
-    with the dates of the alterations. The origin should include at least your
-    name (or your company's name), and an email address to contact for help or
-    issues with the library.
-
-    Note that distributing a compiled zlib library along with zlib.h and
-    zconf.h is also a source distribution, and so you should change
-    ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes
-    in zlib.h as you would for a full source distribution.
-
-25. Will zlib work on a big-endian or little-endian architecture, and can I
-    exchange compressed data between them?
-
-    Yes and yes.
-
-26. Will zlib work on a 64-bit machine?
-
-    It should. It has been tested on 64-bit machines, and has no dependence
-    on any data types being limited to 32-bits in length. If you have any
-    difficulties, please provide a complete problem report to zlib@gzip.org
-
-27. Will zlib decompress data from the PKWare Data Compression Library?
-
-    No. The PKWare DCL uses a completely different compressed data format
-    than does PKZIP and zlib. However, you can look in zlib's contrib/blast
-    directory for a possible solution to your problem.
-
-28. Can I access data randomly in a compressed stream?
-
-    No, not without some preparation. If when compressing you periodically
-    use Z_FULL_FLUSH, carefully write all the pending data at those points,
-    and keep an index of those locations, then you can start decompression
-    at those points. You have to be careful to not use Z_FULL_FLUSH too
-    often, since it can significantly degrade compression.
-
-29. Does zlib work on MVS, OS/390, CICS, etc.?
-
-    We don't know for sure. We have heard occasional reports of success on
-    these systems. If you do use it on one of these, please provide us with
-    a report, instructions, and patches that we can reference when we get
-    these questions. Thanks.
-
-30. Is there some simpler, easier to read version of inflate I can look at
-    to understand the deflate format?
-
-    First off, you should read RFC 1951. Second, yes. Look in zlib's
-    contrib/puff directory.
-
-31. Does zlib infringe on any patents?
-
-    As far as we know, no. In fact, that was originally the whole point behind
-    zlib. Look here for some more information:
-
-    http://www.gzip.org/#faq11
-
-32. Can zlib work with greater than 4 GB of data?
-
-    Yes. inflate() and deflate() will process any amount of data correctly.
-    Each call of inflate() or deflate() is limited to input and output chunks
-    of the maximum value that can be stored in the compiler's "unsigned int"
-    type, but there is no limit to the number of chunks. Note however that the
-    strm.total_in and strm_total_out counters may be limited to 4 GB. These
-    counters are provided as a convenience and are not used internally by
-    inflate() or deflate(). The application can easily set up its own counters
-    updated after each call of inflate() or deflate() to count beyond 4 GB.
-    compress() and uncompress() may be limited to 4 GB, since they operate in a
-    single call. gzseek() and gztell() may be limited to 4 GB depending on how
-    zlib is compiled. See the zlibCompileFlags() function in zlib.h.
-
-    The word "may" appears several times above since there is a 4 GB limit
-    only if the compiler's "long" type is 32 bits. If the compiler's "long"
-    type is 64 bits, then the limit is 16 exabytes.
-
-33. Does zlib have any security vulnerabilities?
-
-    The only one that we are aware of is potentially in gzprintf(). If zlib
-    is compiled to use sprintf() or vsprintf(), then there is no protection
-    against a buffer overflow of a 4K string space, other than the caller of
-    gzprintf() assuring that the output will not exceed 4K. On the other
-    hand, if zlib is compiled to use snprintf() or vsnprintf(), which should
-    normally be the case, then there is no vulnerability. The ./configure
-    script will display warnings if an insecure variation of sprintf() will
-    be used by gzprintf(). Also the zlibCompileFlags() function will return
-    information on what variant of sprintf() is used by gzprintf().
-
-    If you don't have snprintf() or vsnprintf() and would like one, you can
-    find a portable implementation here:
-
-        http://www.ijs.si/software/snprintf/
-
-    Note that you should be using the most recent version of zlib. Versions
-    1.1.3 and before were subject to a double-free vulnerability.
-
-34. Is there a Java version of zlib?
-
-    Probably what you want is to use zlib in Java. zlib is already included
-    as part of the Java SDK in the java.util.zip package. If you really want
-    a version of zlib written in the Java language, look on the zlib home
-    page for links: http://www.zlib.org/
-
-35. I get this or that compiler or source-code scanner warning when I crank it
-    up to maximally-pedantic. Can't you guys write proper code?
-
-    Many years ago, we gave up attempting to avoid warnings on every compiler
-    in the universe. It just got to be a waste of time, and some compilers
-    were downright silly. So now, we simply make sure that the code always
-    works.
-
-36. Valgrind (or some similar memory access checker) says that deflate is
-    performing a conditional jump that depends on an uninitialized value.
-    Isn't that a bug?
-
-    No.  That is intentional for performance reasons, and the output of
-    deflate is not affected.  This only started showing up recently since
-    zlib 1.2.x uses malloc() by default for allocations, whereas earlier
-    versions used calloc(), which zeros out the allocated memory.
-
-37. Will zlib read the (insert any ancient or arcane format here) compressed
-    data format?
-
-    Probably not. Look in the comp.compression FAQ for pointers to various
-    formats and associated software.
-
-38. How can I encrypt/decrypt zip files with zlib?
-
-    zlib doesn't support encryption. The original PKZIP encryption is very weak
-    and can be broken with freely available programs. To get strong encryption,
-    use GnuPG, http://www.gnupg.org/ , which already includes zlib compression.
-    For PKZIP compatible "encryption", look at http://www.info-zip.org/
-
-39. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings?
-
-    "gzip" is the gzip format, and "deflate" is the zlib format. They should
-    probably have called the second one "zlib" instead to avoid confusion
-    with the raw deflate compressed data format. While the HTTP 1.1 RFC 2616
-    correctly points to the zlib specification in RFC 1950 for the "deflate"
-    transfer encoding, there have been reports of servers and browsers that
-    incorrectly produce or expect raw deflate data per the deflate
-    specficiation in RFC 1951, most notably Microsoft. So even though the
-    "deflate" transfer encoding using the zlib format would be the more
-    efficient approach (and in fact exactly what the zlib format was designed
-    for), using the "gzip" transfer encoding is probably more reliable due to
-    an unfortunate choice of name on the part of the HTTP 1.1 authors.
-
-    Bottom line: use the gzip format for HTTP 1.1 encoding.
-
-40. Does zlib support the new "Deflate64" format introduced by PKWare?
-
-    No. PKWare has apparently decided to keep that format proprietary, since
-    they have not documented it as they have previous compression formats.
-    In any case, the compression improvements are so modest compared to other
-    more modern approaches, that it's not worth the effort to implement.
-
-41. Can you please sign these lengthy legal documents and fax them back to us
-    so that we can use your software in our product?
-
-    No. Go away. Shoo.
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/INDEX b/components/dfs/filesystems/jffs2/cyg/compress/src/INDEX
deleted file mode 100644
index 0587e5902b..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/INDEX
+++ /dev/null
@@ -1,51 +0,0 @@
-ChangeLog       history of changes
-FAQ             Frequently Asked Questions about zlib
-INDEX           this file
-Makefile        makefile for Unix (generated by configure)
-Makefile.in     makefile for Unix (template for configure)
-README          guess what
-algorithm.txt   description of the (de)compression algorithm
-configure       configure script for Unix
-zconf.in.h      template for zconf.h (used by configure)
-
-amiga/          makefiles for Amiga SAS C
-as400/          makefiles for IBM AS/400
-msdos/          makefiles for MSDOS
-old/            makefiles for various architectures and zlib documentation
-                files that have not yet been updated for zlib 1.2.x
-projects/       projects for various Integrated Development Environments
-qnx/            makefiles for QNX
-win32/          makefiles for Windows
-
-                zlib public header files (must be kept):
-zconf.h
-zlib.h
-
-                private source files used to build the zlib library:
-adler32.c
-compress.c
-crc32.c
-crc32.h
-deflate.c
-deflate.h
-gzio.c
-infback.c
-inffast.c
-inffast.h
-inffixed.h
-inflate.c
-inflate.h
-inftrees.c
-inftrees.h
-trees.c
-trees.h
-uncompr.c
-zutil.c
-zutil.h
-
-                source files for sample programs:
-example.c
-minigzip.c
-
-                unsupported contribution by third parties
-See contrib/README.contrib
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/Make_vms.com b/components/dfs/filesystems/jffs2/cyg/compress/src/Make_vms.com
deleted file mode 100644
index c2a1fb54b2..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/Make_vms.com
+++ /dev/null
@@ -1,461 +0,0 @@
-$! make libz under VMS written by
-$! Martin P.J. Zinser
-$! <zinser@zinser.no-ip.info or zinser@sysdev.deutsche-boerse.com>
-$!
-$ on error then goto err_exit
-$!
-$!
-$! Just some general constants...
-$!
-$ true  = 1
-$ false = 0
-$ tmpnam = "temp_" + f$getjpi("","pid")
-$ SAY = "WRITE SYS$OUTPUT"
-$!
-$! Setup variables holding "config" information
-$!
-$ Make     = ""
-$ name     = "Zlib"
-$ version  = "?.?.?"
-$ v_string = "ZLIB_VERSION"
-$ v_file   = "zlib.h"
-$ ccopt    = ""
-$ lopts    = ""
-$ linkonly = false
-$ optfile  = name + ".opt"
-$ its_decc = false
-$ its_vaxc = false
-$ its_gnuc = false
-$ axp      = f$getsyi("HW_MODEL").ge.1024
-$ s_case   = false
-$! Check for MMK/MMS
-$!
-$ If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS"
-$ If F$Type (MMK) .eqs. "STRING" Then Make = "MMK"
-$!
-$!
-$ gosub find_version
-$!
-$ gosub check_opts
-$!
-$! Look for the compiler used
-$!
-$ gosub check_compiler
-$ if its_decc
-$ then
-$   ccopt = "/prefix=all" + ccopt
-$   if f$trnlnm("SYS") .eqs. ""
-$   then
-$     if axp
-$     then
-$       define sys sys$library:
-$     else
-$       ccopt = "/decc" + ccopt
-$       define sys decc$library_include:
-$     endif
-$   endif
-$ endif
-$ if its_vaxc .or. its_gnuc
-$ then
-$    if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ endif
-$!
-$! Build the thing plain or with mms
-$!
-$ write sys$output "Compiling Zlib sources ..."
-$ if make.eqs.""
-$  then
-$   dele example.obj;*,minigzip.obj;*
-$   CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" -
-                adler32.c zlib.h zconf.h
-$   CALL MAKE compress.OBJ "CC ''CCOPT' compress" -
-                compress.c zlib.h zconf.h
-$   CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" -
-                crc32.c zlib.h zconf.h
-$   CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" -
-                deflate.c deflate.h zutil.h zlib.h zconf.h
-$   CALL MAKE gzio.OBJ "CC ''CCOPT' gzio" -
-                gzio.c zutil.h zlib.h zconf.h
-$   CALL MAKE infback.OBJ "CC ''CCOPT' infback" -
-                infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h
-$   CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" -
-                inffast.c zutil.h zlib.h zconf.h inffast.h
-$   CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" -
-                inflate.c zutil.h zlib.h zconf.h infblock.h
-$   CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" -
-                inftrees.c zutil.h zlib.h zconf.h inftrees.h
-$   CALL MAKE trees.OBJ "CC ''CCOPT' trees" -
-                trees.c deflate.h zutil.h zlib.h zconf.h
-$   CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" -
-                uncompr.c zlib.h zconf.h
-$   CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" -
-                zutil.c zutil.h zlib.h zconf.h
-$   write sys$output "Building Zlib ..."
-$   CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ
-$   write sys$output "Building example..."
-$   CALL MAKE example.OBJ "CC ''CCOPT' example" -
-                example.c zlib.h zconf.h
-$   call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb
-$   if f$search("x11vms:xvmsutils.olb") .nes. ""
-$   then
-$     write sys$output "Building minigzip..."
-$     CALL MAKE minigzip.OBJ "CC ''CCOPT' minigzip" -
-                minigzip.c zlib.h zconf.h
-$     call make minigzip.exe -
-                "LINK minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib" -
-                minigzip.obj libz.olb
-$   endif
-$  else
-$   gosub crea_mms
-$   SAY "Make ''name' ''version' with ''Make' "
-$   'make'
-$  endif
-$!
-$! Alpha gets a shareable image
-$!
-$ If axp
-$ Then
-$   gosub crea_olist
-$   write sys$output "Creating libzshr.exe"
-$   call anal_obj_axp modules.opt _link.opt
-$   if s_case
-$   then
-$      open/append optf modules.opt
-$      write optf "case_sensitive=YES"
-$      close optf
-$   endif
-$   LINK_'lopts'/SHARE=libzshr.exe modules.opt/opt,_link.opt/opt
-$ endif
-$ write sys$output "Zlib build completed"
-$ exit
-$CC_ERR:
-$ write sys$output "C compiler required to build ''name'"
-$ goto err_exit
-$ERR_EXIT:
-$ set message/facil/ident/sever/text
-$ write sys$output "Exiting..."
-$ exit 2
-$!
-$!
-$MAKE: SUBROUTINE   !SUBROUTINE TO CHECK DEPENDENCIES
-$ V = 'F$Verify(0)
-$! P1 = What we are trying to make
-$! P2 = Command to make it
-$! P3 - P8  What it depends on
-$
-$ If F$Search(P1) .Eqs. "" Then Goto Makeit
-$ Time = F$CvTime(F$File(P1,"RDT"))
-$arg=3
-$Loop:
-$       Argument = P'arg
-$       If Argument .Eqs. "" Then Goto Exit
-$       El=0
-$Loop2:
-$       File = F$Element(El," ",Argument)
-$       If File .Eqs. " " Then Goto Endl
-$       AFile = ""
-$Loop3:
-$       OFile = AFile
-$       AFile = F$Search(File)
-$       If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
-$       If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
-$       Goto Loop3
-$NextEL:
-$       El = El + 1
-$       Goto Loop2
-$EndL:
-$ arg=arg+1
-$ If arg .Le. 8 Then Goto Loop
-$ Goto Exit
-$
-$Makeit:
-$ VV=F$VERIFY(0)
-$ write sys$output P2
-$ 'P2
-$ VV='F$Verify(VV)
-$Exit:
-$ If V Then Set Verify
-$ENDSUBROUTINE
-$!------------------------------------------------------------------------------
-$!
-$! Check command line options and set symbols accordingly
-$!
-$ CHECK_OPTS:
-$ i = 1
-$ OPT_LOOP:
-$ if i .lt. 9
-$ then
-$   cparm = f$edit(p'i',"upcase")
-$   if cparm .eqs. "DEBUG"
-$   then
-$     ccopt = ccopt + "/noopt/deb"
-$     lopts = lopts + "/deb"
-$   endif
-$   if f$locate("CCOPT=",cparm) .lt. f$length(cparm)
-$   then
-$     start = f$locate("=",cparm) + 1
-$     len   = f$length(cparm) - start
-$     ccopt = ccopt + f$extract(start,len,cparm)
-$     if f$locate("AS_IS",f$edit(ccopt,"UPCASE")) .lt. f$length(ccopt) -
-         then s_case = true
-$   endif
-$   if cparm .eqs. "LINK" then linkonly = true
-$   if f$locate("LOPTS=",cparm) .lt. f$length(cparm)
-$   then
-$     start = f$locate("=",cparm) + 1
-$     len   = f$length(cparm) - start
-$     lopts = lopts + f$extract(start,len,cparm)
-$   endif
-$   if f$locate("CC=",cparm) .lt. f$length(cparm)
-$   then
-$     start  = f$locate("=",cparm) + 1
-$     len    = f$length(cparm) - start
-$     cc_com = f$extract(start,len,cparm)
-      if (cc_com .nes. "DECC") .and. -
-         (cc_com .nes. "VAXC") .and. -
-	 (cc_com .nes. "GNUC")
-$     then
-$       write sys$output "Unsupported compiler choice ''cc_com' ignored"
-$       write sys$output "Use DECC, VAXC, or GNUC instead"
-$     else
-$     	if cc_com .eqs. "DECC" then its_decc = true
-$     	if cc_com .eqs. "VAXC" then its_vaxc = true
-$     	if cc_com .eqs. "GNUC" then its_gnuc = true
-$     endif
-$   endif
-$   if f$locate("MAKE=",cparm) .lt. f$length(cparm)
-$   then
-$     start  = f$locate("=",cparm) + 1
-$     len    = f$length(cparm) - start
-$     mmks = f$extract(start,len,cparm)
-$     if (mmks .eqs. "MMK") .or. (mmks .eqs. "MMS")
-$     then
-$       make = mmks
-$     else
-$       write sys$output "Unsupported make choice ''mmks' ignored"
-$       write sys$output "Use MMK or MMS instead"
-$     endif
-$   endif
-$   i = i + 1
-$   goto opt_loop
-$ endif
-$ return
-$!------------------------------------------------------------------------------
-$!
-$! Look for the compiler used
-$!
-$CHECK_COMPILER:
-$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc))
-$ then
-$   its_decc = (f$search("SYS$SYSTEM:DECC$COMPILER.EXE") .nes. "")
-$   its_vaxc = .not. its_decc .and. (F$Search("SYS$System:VAXC.Exe") .nes. "")
-$   its_gnuc = .not. (its_decc .or. its_vaxc) .and. (f$trnlnm("gnu_cc") .nes. "")
-$ endif
-$!
-$! Exit if no compiler available
-$!
-$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc))
-$ then goto CC_ERR
-$ else
-$   if its_decc then write sys$output "CC compiler check ... Compaq C"
-$   if its_vaxc then write sys$output "CC compiler check ... VAX C"
-$   if its_gnuc then write sys$output "CC compiler check ... GNU C"
-$ endif
-$ return
-$!------------------------------------------------------------------------------
-$!
-$! If MMS/MMK are available dump out the descrip.mms if required
-$!
-$CREA_MMS:
-$ write sys$output "Creating descrip.mms..."
-$ create descrip.mms
-$ open/append out descrip.mms
-$ copy sys$input: out
-$ deck
-# descrip.mms: MMS description file for building zlib on VMS
-# written by Martin P.J. Zinser
-# <zinser@zinser.no-ip.info or zinser@sysdev.deutsche-boerse.com>
-
-OBJS = adler32.obj, compress.obj, crc32.obj, gzio.obj, uncompr.obj, infback.obj\
-       deflate.obj, trees.obj, zutil.obj, inflate.obj, \
-       inftrees.obj, inffast.obj
-
-$ eod
-$ write out "CFLAGS=", ccopt
-$ write out "LOPTS=", lopts
-$ copy sys$input: out
-$ deck
-
-all : example.exe minigzip.exe libz.olb
-        @ write sys$output " Example applications available"
-
-libz.olb : libz.olb($(OBJS))
-	@ write sys$output " libz available"
-
-example.exe : example.obj libz.olb
-              link $(LOPTS) example,libz.olb/lib
-
-minigzip.exe : minigzip.obj libz.olb
-              link $(LOPTS) minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib
-
-clean :
-	delete *.obj;*,libz.olb;*,*.opt;*,*.exe;*
-
-
-# Other dependencies.
-adler32.obj  : adler32.c zutil.h zlib.h zconf.h
-compress.obj : compress.c zlib.h zconf.h
-crc32.obj    : crc32.c zutil.h zlib.h zconf.h
-deflate.obj  : deflate.c deflate.h zutil.h zlib.h zconf.h
-example.obj  : example.c zlib.h zconf.h
-gzio.obj     : gzio.c zutil.h zlib.h zconf.h
-inffast.obj  : inffast.c zutil.h zlib.h zconf.h inftrees.h inffast.h
-inflate.obj  : inflate.c zutil.h zlib.h zconf.h
-inftrees.obj : inftrees.c zutil.h zlib.h zconf.h inftrees.h
-minigzip.obj : minigzip.c zlib.h zconf.h
-trees.obj    : trees.c deflate.h zutil.h zlib.h zconf.h
-uncompr.obj  : uncompr.c zlib.h zconf.h
-zutil.obj    : zutil.c zutil.h zlib.h zconf.h
-infback.obj  : infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h
-$ eod
-$ close out
-$ return
-$!------------------------------------------------------------------------------
-$!
-$! Read list of core library sources from makefile.in and create options
-$! needed to build shareable image
-$!
-$CREA_OLIST:
-$ open/read min makefile.in
-$ open/write mod modules.opt
-$ src_check = "OBJS ="
-$MRLOOP:
-$ read/end=mrdone min rec
-$ if (f$extract(0,6,rec) .nes. src_check) then goto mrloop
-$ rec = rec - src_check
-$ gosub extra_filnam
-$ if (f$element(1,"\",rec) .eqs. "\") then goto mrdone
-$MRSLOOP:
-$ read/end=mrdone min rec
-$ gosub extra_filnam
-$ if (f$element(1,"\",rec) .nes. "\") then goto mrsloop
-$MRDONE:
-$ close min
-$ close mod
-$ return
-$!------------------------------------------------------------------------------
-$!
-$! Take record extracted in crea_olist and split it into single filenames
-$!
-$EXTRA_FILNAM:
-$ myrec = f$edit(rec - "\", "trim,compress")
-$ i = 0
-$FELOOP:
-$ srcfil = f$element(i," ", myrec)
-$ if (srcfil .nes. " ")
-$ then
-$   write mod f$parse(srcfil,,,"NAME"), ".obj"
-$   i = i + 1
-$   goto feloop
-$ endif
-$ return
-$!------------------------------------------------------------------------------
-$!
-$! Find current Zlib version number
-$!
-$FIND_VERSION:
-$ open/read h_in 'v_file'
-$hloop:
-$ read/end=hdone h_in rec
-$ rec = f$edit(rec,"TRIM")
-$ if (f$extract(0,1,rec) .nes. "#") then goto hloop
-$ rec = f$edit(rec - "#", "TRIM")
-$ if f$element(0," ",rec) .nes. "define" then goto hloop
-$ if f$element(1," ",rec) .eqs. v_string
-$ then
-$   version = 'f$element(2," ",rec)'
-$   goto hdone
-$ endif
-$ goto hloop
-$hdone:
-$ close h_in
-$ return
-$!------------------------------------------------------------------------------
-$!
-$! Analyze Object files for OpenVMS AXP to extract Procedure and Data
-$! information to build a symbol vector for a shareable image
-$! All the "brains" of this logic was suggested by Hartmut Becker
-$! (Hartmut.Becker@compaq.com). All the bugs were introduced by me
-$! (zinser@decus.de), so if you do have problem reports please do not
-$! bother Hartmut/HP, but get in touch with me
-$!
-$ ANAL_OBJ_AXP: Subroutine
-$ V = 'F$Verify(0)
-$ SAY := "WRITE_ SYS$OUTPUT"
-$
-$ IF F$SEARCH("''P1'") .EQS. ""
-$ THEN
-$    SAY "ANAL_OBJ_AXP-E-NOSUCHFILE:  Error, inputfile ''p1' not available"
-$    goto exit_aa
-$ ENDIF
-$ IF "''P2'" .EQS. ""
-$ THEN
-$    SAY "ANAL_OBJ_AXP:  Error, no output file provided"
-$    goto exit_aa
-$ ENDIF
-$
-$ open/read in 'p1
-$ create a.tmp
-$ open/append atmp a.tmp
-$ loop:
-$ read/end=end_loop in line
-$ f= f$search(line)
-$ if f .eqs. ""
-$ then
-$	write sys$output "ANAL_OBJ_AXP-w-nosuchfile, ''line'"
-$	goto loop
-$ endif
-$ define/user sys$output nl:
-$ define/user sys$error nl:
-$ anal/obj/gsd 'f /out=x.tmp
-$ open/read xtmp x.tmp
-$ XLOOP:
-$ read/end=end_xloop xtmp xline
-$ xline = f$edit(xline,"compress")
-$ write atmp xline
-$ goto xloop
-$ END_XLOOP:
-$ close xtmp
-$ goto loop
-$ end_loop:
-$ close in
-$ close atmp
-$ if f$search("a.tmp") .eqs. "" -
-	then $ exit
-$ ! all global definitions
-$ search a.tmp "symbol:","EGSY$V_DEF 1","EGSY$V_NORM 1"/out=b.tmp
-$ ! all procedures
-$ search b.tmp "EGSY$V_NORM 1"/wind=(0,1) /out=c.tmp
-$ search c.tmp "symbol:"/out=d.tmp
-$ define/user sys$output nl:
-$ edito/edt/command=sys$input d.tmp
-sub/symbol: "/symbol_vector=(/whole
-sub/"/=PROCEDURE)/whole
-exit
-$ ! all data
-$ search b.tmp "EGSY$V_DEF 1"/wind=(0,1) /out=e.tmp
-$ search e.tmp "symbol:"/out=f.tmp
-$ define/user sys$output nl:
-$ edito/edt/command=sys$input f.tmp
-sub/symbol: "/symbol_vector=(/whole
-sub/"/=DATA)/whole
-exit
-$ sort/nodupl d.tmp,f.tmp 'p2'
-$ delete a.tmp;*,b.tmp;*,c.tmp;*,d.tmp;*,e.tmp;*,f.tmp;*
-$ if f$search("x.tmp") .nes. "" -
-	then $ delete x.tmp;*
-$!
-$ EXIT_AA:
-$ if V then set verify
-$ endsubroutine
-$!------------------------------------------------------------------------------
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile b/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile
deleted file mode 100644
index 2fd6e45c48..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile
+++ /dev/null
@@ -1,154 +0,0 @@
-# Makefile for zlib
-# Copyright (C) 1995-2005 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile and test, type:
-#    ./configure; make test
-# The call of configure is optional if you don't have special requirements
-# If you wish to build zlib as a shared library, use: ./configure -s
-
-# To use the asm code, type:
-#    cp contrib/asm?86/match.S ./match.S
-#    make LOC=-DASMV OBJA=match.o
-
-# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
-#    make install
-# To install in $HOME instead of /usr/local, use:
-#    make install prefix=$HOME
-
-CC=cc
-
-CFLAGS=-O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-g -DDEBUG
-#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
-#           -Wstrict-prototypes -Wmissing-prototypes
-
-LDFLAGS=libz.a
-LDSHARED=$(CC)
-CPP=$(CC) -E
-
-LIBS=libz.a
-SHAREDLIB=libz.so
-SHAREDLIBV=libz.so.1.2.3
-SHAREDLIBM=libz.so.1
-
-AR=ar rc
-RANLIB=ranlib
-TAR=tar
-SHELL=/bin/sh
-EXE=
-
-prefix = /usr/local
-exec_prefix = ${prefix}
-libdir = ${exec_prefix}/lib
-includedir = ${prefix}/include
-mandir = ${prefix}/share/man
-man3dir = ${mandir}/man3
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
-       zutil.o inflate.o infback.o inftrees.o inffast.o
-
-OBJA =
-# to use the asm code: make OBJA=match.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example$(EXE) minigzip$(EXE)
-
-check: test
-test: all
-	@LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
-	echo hello world | ./minigzip | ./minigzip -d || \
-	  echo '		*** minigzip test FAILED ***' ; \
-	if ./example; then \
-	  echo '		*** zlib test OK ***'; \
-	else \
-	  echo '		*** zlib test FAILED ***'; \
-	fi
-
-libz.a: $(OBJS) $(OBJA)
-	$(AR) $@ $(OBJS) $(OBJA)
-	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
-
-match.o: match.S
-	$(CPP) match.S > _match.s
-	$(CC) -c _match.s
-	mv _match.o match.o
-	rm -f _match.s
-
-$(SHAREDLIBV): $(OBJS)
-	$(LDSHARED) -o $@ $(OBJS)
-	rm -f $(SHAREDLIB) $(SHAREDLIBM)
-	ln -s $@ $(SHAREDLIB)
-	ln -s $@ $(SHAREDLIBM)
-
-example$(EXE): example.o $(LIBS)
-	$(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS)
-
-minigzip$(EXE): minigzip.o $(LIBS)
-	$(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS)
-
-install: $(LIBS)
-	-@if [ ! -d $(exec_prefix) ]; then mkdir -p $(exec_prefix); fi
-	-@if [ ! -d $(includedir)  ]; then mkdir -p $(includedir); fi
-	-@if [ ! -d $(libdir)      ]; then mkdir -p $(libdir); fi
-	-@if [ ! -d $(man3dir)     ]; then mkdir -p $(man3dir); fi
-	cp zlib.h zconf.h $(includedir)
-	chmod 644 $(includedir)/zlib.h $(includedir)/zconf.h
-	cp $(LIBS) $(libdir)
-	cd $(libdir); chmod 755 $(LIBS)
-	-@(cd $(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
-	cd $(libdir); if test -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIB) $(SHAREDLIBM); \
-	  ln -s $(SHAREDLIBV) $(SHAREDLIB); \
-	  ln -s $(SHAREDLIBV) $(SHAREDLIBM); \
-	  (ldconfig || true)  >/dev/null 2>&1; \
-	fi
-	cp zlib.3 $(man3dir)
-	chmod 644 $(man3dir)/zlib.3
-# The ranlib in install is needed on NeXTSTEP which checks file times
-# ldconfig is for Linux
-
-uninstall:
-	cd $(includedir); \
-	cd $(libdir); rm -f libz.a; \
-	if test -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
-	fi
-	cd $(man3dir); rm -f zlib.3
-
-mostlyclean: clean
-clean:
-	rm -f *.o *~ example$(EXE) minigzip$(EXE) \
-	   libz.* foo.gz so_locations \
-	   _match.s maketree contrib/infback9/*.o
-
-maintainer-clean: distclean
-distclean: clean
-	cp -p Makefile.in Makefile
-	cp -p zconf.in.h zconf.h
-	rm -f .DS_Store
-
-tags:
-	etags *.[ch]
-
-depend:
-	makedepend -- $(CFLAGS) -- *.[ch]
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-adler32.o: zlib.h zconf.h
-compress.o: zlib.h zconf.h
-crc32.o: crc32.h zlib.h zconf.h
-deflate.o: deflate.h zutil.h zlib.h zconf.h
-example.o: zlib.h zconf.h
-gzio.o: zutil.h zlib.h zconf.h
-inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-inftrees.o: zutil.h zlib.h zconf.h inftrees.h
-minigzip.o: zlib.h zconf.h
-trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
-uncompr.o: zlib.h zconf.h
-zutil.o: zutil.h zlib.h zconf.h
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile.in b/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile.in
deleted file mode 100644
index 2fd6e45c48..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile.in
+++ /dev/null
@@ -1,154 +0,0 @@
-# Makefile for zlib
-# Copyright (C) 1995-2005 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile and test, type:
-#    ./configure; make test
-# The call of configure is optional if you don't have special requirements
-# If you wish to build zlib as a shared library, use: ./configure -s
-
-# To use the asm code, type:
-#    cp contrib/asm?86/match.S ./match.S
-#    make LOC=-DASMV OBJA=match.o
-
-# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
-#    make install
-# To install in $HOME instead of /usr/local, use:
-#    make install prefix=$HOME
-
-CC=cc
-
-CFLAGS=-O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-g -DDEBUG
-#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
-#           -Wstrict-prototypes -Wmissing-prototypes
-
-LDFLAGS=libz.a
-LDSHARED=$(CC)
-CPP=$(CC) -E
-
-LIBS=libz.a
-SHAREDLIB=libz.so
-SHAREDLIBV=libz.so.1.2.3
-SHAREDLIBM=libz.so.1
-
-AR=ar rc
-RANLIB=ranlib
-TAR=tar
-SHELL=/bin/sh
-EXE=
-
-prefix = /usr/local
-exec_prefix = ${prefix}
-libdir = ${exec_prefix}/lib
-includedir = ${prefix}/include
-mandir = ${prefix}/share/man
-man3dir = ${mandir}/man3
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
-       zutil.o inflate.o infback.o inftrees.o inffast.o
-
-OBJA =
-# to use the asm code: make OBJA=match.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example$(EXE) minigzip$(EXE)
-
-check: test
-test: all
-	@LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
-	echo hello world | ./minigzip | ./minigzip -d || \
-	  echo '		*** minigzip test FAILED ***' ; \
-	if ./example; then \
-	  echo '		*** zlib test OK ***'; \
-	else \
-	  echo '		*** zlib test FAILED ***'; \
-	fi
-
-libz.a: $(OBJS) $(OBJA)
-	$(AR) $@ $(OBJS) $(OBJA)
-	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
-
-match.o: match.S
-	$(CPP) match.S > _match.s
-	$(CC) -c _match.s
-	mv _match.o match.o
-	rm -f _match.s
-
-$(SHAREDLIBV): $(OBJS)
-	$(LDSHARED) -o $@ $(OBJS)
-	rm -f $(SHAREDLIB) $(SHAREDLIBM)
-	ln -s $@ $(SHAREDLIB)
-	ln -s $@ $(SHAREDLIBM)
-
-example$(EXE): example.o $(LIBS)
-	$(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS)
-
-minigzip$(EXE): minigzip.o $(LIBS)
-	$(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS)
-
-install: $(LIBS)
-	-@if [ ! -d $(exec_prefix) ]; then mkdir -p $(exec_prefix); fi
-	-@if [ ! -d $(includedir)  ]; then mkdir -p $(includedir); fi
-	-@if [ ! -d $(libdir)      ]; then mkdir -p $(libdir); fi
-	-@if [ ! -d $(man3dir)     ]; then mkdir -p $(man3dir); fi
-	cp zlib.h zconf.h $(includedir)
-	chmod 644 $(includedir)/zlib.h $(includedir)/zconf.h
-	cp $(LIBS) $(libdir)
-	cd $(libdir); chmod 755 $(LIBS)
-	-@(cd $(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
-	cd $(libdir); if test -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIB) $(SHAREDLIBM); \
-	  ln -s $(SHAREDLIBV) $(SHAREDLIB); \
-	  ln -s $(SHAREDLIBV) $(SHAREDLIBM); \
-	  (ldconfig || true)  >/dev/null 2>&1; \
-	fi
-	cp zlib.3 $(man3dir)
-	chmod 644 $(man3dir)/zlib.3
-# The ranlib in install is needed on NeXTSTEP which checks file times
-# ldconfig is for Linux
-
-uninstall:
-	cd $(includedir); \
-	cd $(libdir); rm -f libz.a; \
-	if test -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
-	fi
-	cd $(man3dir); rm -f zlib.3
-
-mostlyclean: clean
-clean:
-	rm -f *.o *~ example$(EXE) minigzip$(EXE) \
-	   libz.* foo.gz so_locations \
-	   _match.s maketree contrib/infback9/*.o
-
-maintainer-clean: distclean
-distclean: clean
-	cp -p Makefile.in Makefile
-	cp -p zconf.in.h zconf.h
-	rm -f .DS_Store
-
-tags:
-	etags *.[ch]
-
-depend:
-	makedepend -- $(CFLAGS) -- *.[ch]
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-adler32.o: zlib.h zconf.h
-compress.o: zlib.h zconf.h
-crc32.o: crc32.h zlib.h zconf.h
-deflate.o: deflate.h zutil.h zlib.h zconf.h
-example.o: zlib.h zconf.h
-gzio.o: zutil.h zlib.h zconf.h
-inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-inftrees.o: zutil.h zlib.h zconf.h inftrees.h
-minigzip.o: zlib.h zconf.h
-trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
-uncompr.o: zlib.h zconf.h
-zutil.o: zutil.h zlib.h zconf.h
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile.riscos b/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile.riscos
deleted file mode 100644
index d97f449237..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/Makefile.riscos
+++ /dev/null
@@ -1,151 +0,0 @@
-# Project:   zlib_1_03
-# Patched for zlib 1.1.2 rw@shadow.org.uk 19980430
-# test works out-of-the-box, installs `somewhere' on demand
-
-# Toolflags:
-CCflags = -c -depend !Depend -IC: -g -throwback  -DRISCOS  -fah 
-C++flags = -c -depend !Depend -IC: -throwback
-Linkflags = -aif -c++ -o $@ 
-ObjAsmflags = -throwback -NoCache -depend !Depend
-CMHGflags = 
-LibFileflags = -c -l -o $@ 
-Squeezeflags = -o $@
-
-# change the line below to where _you_ want the library installed.
-libdest = lib:zlib
-
-# Final targets:
-@.lib:   @.o.adler32 @.o.compress @.o.crc32 @.o.deflate @.o.gzio \
-        @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil @.o.trees \
-        @.o.uncompr @.o.zutil 
-        LibFile $(LibFileflags) @.o.adler32 @.o.compress @.o.crc32 @.o.deflate \
-        @.o.gzio @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil \
-        @.o.trees @.o.uncompr @.o.zutil 
-test:   @.minigzip @.example @.lib
-	@copy @.lib @.libc  A~C~DF~L~N~P~Q~RS~TV
-	@echo running tests: hang on.
-	@/@.minigzip -f -9 libc
-	@/@.minigzip -d libc-gz
-	@/@.minigzip -f -1 libc
-	@/@.minigzip -d libc-gz
-	@/@.minigzip -h -9 libc
-	@/@.minigzip -d libc-gz
-	@/@.minigzip -h -1 libc
-	@/@.minigzip -d libc-gz
-	@/@.minigzip -9 libc
-	@/@.minigzip -d libc-gz
-	@/@.minigzip -1 libc
-	@/@.minigzip -d libc-gz
-	@diff @.lib @.libc
-	@echo that should have reported '@.lib and @.libc identical' if you have diff.
-	@/@.example @.fred @.fred
-	@echo that will have given lots of hello!'s.
-
-@.minigzip:   @.o.minigzip @.lib C:o.Stubs 
-        Link $(Linkflags) @.o.minigzip @.lib C:o.Stubs 
-@.example:   @.o.example @.lib C:o.Stubs 
-        Link $(Linkflags) @.o.example @.lib C:o.Stubs
-
-install: @.lib
-	cdir $(libdest)
-	cdir $(libdest).h
-	@copy @.h.zlib $(libdest).h.zlib A~C~DF~L~N~P~Q~RS~TV
-	@copy @.h.zconf $(libdest).h.zconf A~C~DF~L~N~P~Q~RS~TV
-	@copy @.lib $(libdest).lib  A~C~DF~L~N~P~Q~RS~TV
-	@echo okay, installed zlib in $(libdest)
-
-clean:; remove @.minigzip
-	remove @.example
-	remove @.libc
-	-wipe @.o.* F~r~cV
-	remove @.fred
-
-# User-editable dependencies:
-.c.o:
-        cc $(ccflags) -o $@ $<
-
-# Static dependencies:
-
-# Dynamic dependencies:
-o.example:	c.example
-o.example:	h.zlib
-o.example:	h.zconf
-o.minigzip:	c.minigzip
-o.minigzip:	h.zlib
-o.minigzip:	h.zconf
-o.adler32:	c.adler32
-o.adler32:	h.zlib
-o.adler32:	h.zconf
-o.compress:	c.compress
-o.compress:	h.zlib
-o.compress:	h.zconf
-o.crc32:	c.crc32
-o.crc32:	h.zlib
-o.crc32:	h.zconf
-o.deflate:	c.deflate
-o.deflate:	h.deflate
-o.deflate:	h.zutil
-o.deflate:	h.zlib
-o.deflate:	h.zconf
-o.gzio:	c.gzio
-o.gzio:	h.zutil
-o.gzio:	h.zlib
-o.gzio:	h.zconf
-o.infblock:	c.infblock
-o.infblock:	h.zutil
-o.infblock:	h.zlib
-o.infblock:	h.zconf
-o.infblock:	h.infblock
-o.infblock:	h.inftrees
-o.infblock:	h.infcodes
-o.infblock:	h.infutil
-o.infcodes:	c.infcodes
-o.infcodes:	h.zutil
-o.infcodes:	h.zlib
-o.infcodes:	h.zconf
-o.infcodes:	h.inftrees
-o.infcodes:	h.infblock
-o.infcodes:	h.infcodes
-o.infcodes:	h.infutil
-o.infcodes:	h.inffast
-o.inffast:	c.inffast
-o.inffast:	h.zutil
-o.inffast:	h.zlib
-o.inffast:	h.zconf
-o.inffast:	h.inftrees
-o.inffast:	h.infblock
-o.inffast:	h.infcodes
-o.inffast:	h.infutil
-o.inffast:	h.inffast
-o.inflate:	c.inflate
-o.inflate:	h.zutil
-o.inflate:	h.zlib
-o.inflate:	h.zconf
-o.inflate:	h.infblock
-o.inftrees:	c.inftrees
-o.inftrees:	h.zutil
-o.inftrees:	h.zlib
-o.inftrees:	h.zconf
-o.inftrees:	h.inftrees
-o.inftrees:	h.inffixed
-o.infutil:	c.infutil
-o.infutil:	h.zutil
-o.infutil:	h.zlib
-o.infutil:	h.zconf
-o.infutil:	h.infblock
-o.infutil:	h.inftrees
-o.infutil:	h.infcodes
-o.infutil:	h.infutil
-o.trees:	c.trees
-o.trees:	h.deflate
-o.trees:	h.zutil
-o.trees:	h.zlib
-o.trees:	h.zconf
-o.trees:	h.trees
-o.uncompr:	c.uncompr
-o.uncompr:	h.zlib
-o.uncompr:	h.zconf
-o.zutil:	c.zutil
-o.zutil:	h.zutil
-o.zutil:	h.zlib
-o.zutil:	h.zconf
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/README b/components/dfs/filesystems/jffs2/cyg/compress/src/README
deleted file mode 100644
index 758cc50020..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/README
+++ /dev/null
@@ -1,125 +0,0 @@
-ZLIB DATA COMPRESSION LIBRARY
-
-zlib 1.2.3 is a general purpose data compression library.  All the code is
-thread safe.  The data format used by the zlib library is described by RFCs
-(Request for Comments) 1950 to 1952 in the files
-http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
-and rfc1952.txt (gzip format). These documents are also available in other
-formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
-
-All functions of the compression library are documented in the file zlib.h
-(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example
-of the library is given in the file example.c which also tests that the library
-is working correctly. Another example is given in the file minigzip.c. The
-compression library itself is composed of all source files except example.c and
-minigzip.c.
-
-To compile all files and run the test program, follow the instructions given at
-the top of Makefile. In short "make test; make install" should work for most
-machines. For Unix: "./configure; make test; make install". For MSDOS, use one
-of the special makefiles such as Makefile.msc. For VMS, use make_vms.com.
-
-Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
-<info@winimage.com> for the Windows DLL version. The zlib home page is
-http://www.zlib.org or http://www.gzip.org/zlib/ Before reporting a problem,
-please check this site to verify that you have the latest version of zlib;
-otherwise get the latest version and check whether the problem still exists or
-not.
-
-PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html before asking
-for help.
-
-Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
-issue of  Dr. Dobb's Journal; a copy of the article is available in
-http://dogma.net/markn/articles/zlibtool/zlibtool.htm
-
-The changes made in version 1.2.3 are documented in the file ChangeLog.
-
-Unsupported third party contributions are provided in directory "contrib".
-
-A Java implementation of zlib is available in the Java Development Kit
-http://java.sun.com/j2se/1.4.2/docs/api/java/util/zip/package-summary.html
-See the zlib home page http://www.zlib.org for details.
-
-A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is in the
-CPAN (Comprehensive Perl Archive Network) sites
-http://www.cpan.org/modules/by-module/Compress/
-
-A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
-available in Python 1.5 and later versions, see
-http://www.python.org/doc/lib/module-zlib.html
-
-A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com> is
-availlable at http://www.oche.de/~akupries/soft/trf/trf_zip.html
-
-An experimental package to read and write files in .zip format, written on top
-of zlib by Gilles Vollant <info@winimage.com>, is available in the
-contrib/minizip directory of zlib.
-
-
-Notes for some targets:
-
-- For Windows DLL versions, please see win32/DLL_FAQ.txt
-
-- For 64-bit Irix, deflate.c must be compiled without any optimization. With
-  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
-  compiler flag). The compiler bug has been reported to SGI.
-
-- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
-  when compiled with cc.
-
-- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
-  necessary to get gzprintf working correctly. This is done by configure.
-
-- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
-  other compilers. Use "make test" to check your compiler.
-
-- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.
-
-- For PalmOs, see http://palmzlib.sourceforge.net/
-
-- When building a shared, i.e. dynamic library on Mac OS X, the library must be
-  installed before testing (do "make install" before "make test"), since the
-  library location is specified in the library.
-
-
-Acknowledgments:
-
-  The deflate format used by zlib was defined by Phil Katz. The deflate
-  and zlib specifications were written by L. Peter Deutsch. Thanks to all the
-  people who reported problems and suggested various improvements in zlib;
-  they are too numerous to cite here.
-
-Copyright notice:
-
- (C) 1995-2004 Jean-loup Gailly and Mark Adler
-
-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the authors be held liable for any damages
-  arising from the use of this software.
-
-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
-
-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
-
-  Jean-loup Gailly        Mark Adler
-  jloup@gzip.org          madler@alumni.caltech.edu
-
-If you use the zlib library in a product, we would appreciate *not*
-receiving lengthy legal documents to sign. The sources are provided
-for free but without warranty of any kind.  The library has been
-entirely written by Jean-loup Gailly and Mark Adler; it does not
-include third-party code.
-
-If you redistribute modified sources, we would appreciate that you include
-in the file ChangeLog history information documenting your changes. Please
-read the FAQ for more information on the distribution of modified source
-versions.
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/README.eCos b/components/dfs/filesystems/jffs2/cyg/compress/src/README.eCos
deleted file mode 100644
index 88011312f9..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/README.eCos
+++ /dev/null
@@ -1,27 +0,0 @@
-See the main site http://www.gzip.org/zlib/ for places to download the 
-complete sources.  Currently based on zlib-1.2.3
-
-Note that these are not the complete zlib sources - the following
-directories have been deleted since they are irrelevant for the
-eCos support:
-
-amiga/
-as400/
-contrib/
-msdos/
-old/ 
-projects/
-qnx/ 
-win32/
-
-Additionally, local changes has been made to the remaining files. Code
-changes are marked by __ECOS__ (comments or definitions). Finally, the
-headers zlib.h and zconf.h have been moved out of the directory into
-../include.
-
-crc32.c + crc32.h has also been removed as it is provided by services/crc/.
-
-Note: zconf.h always defines __ECOS__.  This is necessary to support
-programs built outside of the eCos tree which may wish to use this
-library (so those programs needn't worry about defining __ECOS__)
-
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/adler32.c b/components/dfs/filesystems/jffs2/cyg/compress/src/adler32.c
deleted file mode 100644
index 2522ee2120..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/adler32.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/* adler32.c -- compute the Adler-32 checksum of a data stream
- * Copyright (C) 1995-2004 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#define ZLIB_INTERNAL
-#ifdef __ECOS__
-#include <cyg/compress/zlib.h>
-#else
-#include "zlib.h"
-#endif // __ECOS__
-
-#define BASE 65521UL    /* largest prime smaller than 65536 */
-#define NMAX 5552
-/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
-
-#define DO1(buf,i)  {adler += (buf)[i]; sum2 += adler;}
-#define DO2(buf,i)  DO1(buf,i); DO1(buf,i+1);
-#define DO4(buf,i)  DO2(buf,i); DO2(buf,i+2);
-#define DO8(buf,i)  DO4(buf,i); DO4(buf,i+4);
-#define DO16(buf)   DO8(buf,0); DO8(buf,8);
-
-/* use NO_DIVIDE if your processor does not do division in hardware */
-#ifdef NO_DIVIDE
-#  define MOD(a) \
-    do { \
-        if (a >= (BASE << 16)) a -= (BASE << 16); \
-        if (a >= (BASE << 15)) a -= (BASE << 15); \
-        if (a >= (BASE << 14)) a -= (BASE << 14); \
-        if (a >= (BASE << 13)) a -= (BASE << 13); \
-        if (a >= (BASE << 12)) a -= (BASE << 12); \
-        if (a >= (BASE << 11)) a -= (BASE << 11); \
-        if (a >= (BASE << 10)) a -= (BASE << 10); \
-        if (a >= (BASE << 9)) a -= (BASE << 9); \
-        if (a >= (BASE << 8)) a -= (BASE << 8); \
-        if (a >= (BASE << 7)) a -= (BASE << 7); \
-        if (a >= (BASE << 6)) a -= (BASE << 6); \
-        if (a >= (BASE << 5)) a -= (BASE << 5); \
-        if (a >= (BASE << 4)) a -= (BASE << 4); \
-        if (a >= (BASE << 3)) a -= (BASE << 3); \
-        if (a >= (BASE << 2)) a -= (BASE << 2); \
-        if (a >= (BASE << 1)) a -= (BASE << 1); \
-        if (a >= BASE) a -= BASE; \
-    } while (0)
-#  define MOD4(a) \
-    do { \
-        if (a >= (BASE << 4)) a -= (BASE << 4); \
-        if (a >= (BASE << 3)) a -= (BASE << 3); \
-        if (a >= (BASE << 2)) a -= (BASE << 2); \
-        if (a >= (BASE << 1)) a -= (BASE << 1); \
-        if (a >= BASE) a -= BASE; \
-    } while (0)
-#else
-#  define MOD(a) a %= BASE
-#  define MOD4(a) a %= BASE
-#endif
-
-/* ========================================================================= */
-uLong ZEXPORT adler32(adler, buf, len)
-    uLong adler;
-    const Bytef *buf;
-    uInt len;
-{
-    unsigned long sum2;
-    unsigned n;
-
-    /* split Adler-32 into component sums */
-    sum2 = (adler >> 16) & 0xffff;
-    adler &= 0xffff;
-
-    /* in case user likes doing a byte at a time, keep it fast */
-    if (len == 1) {
-        adler += buf[0];
-        if (adler >= BASE)
-            adler -= BASE;
-        sum2 += adler;
-        if (sum2 >= BASE)
-            sum2 -= BASE;
-        return adler | (sum2 << 16);
-    }
-
-    /* initial Adler-32 value (deferred check for len == 1 speed) */
-    if (buf == Z_NULL)
-        return 1L;
-
-    /* in case short lengths are provided, keep it somewhat fast */
-    if (len < 16) {
-        while (len--) {
-            adler += *buf++;
-            sum2 += adler;
-        }
-        if (adler >= BASE)
-            adler -= BASE;
-        MOD4(sum2);             /* only added so many BASE's */
-        return adler | (sum2 << 16);
-    }
-
-    /* do length NMAX blocks -- requires just one modulo operation */
-    while (len >= NMAX) {
-        len -= NMAX;
-        n = NMAX / 16;          /* NMAX is divisible by 16 */
-        do {
-            DO16(buf);          /* 16 sums unrolled */
-            buf += 16;
-        } while (--n);
-        MOD(adler);
-        MOD(sum2);
-    }
-
-    /* do remaining bytes (less than NMAX, still just one modulo) */
-    if (len) {                  /* avoid modulos if none remaining */
-        while (len >= 16) {
-            len -= 16;
-            DO16(buf);
-            buf += 16;
-        }
-        while (len--) {
-            adler += *buf++;
-            sum2 += adler;
-        }
-        MOD(adler);
-        MOD(sum2);
-    }
-
-    /* return recombined sums */
-    return adler | (sum2 << 16);
-}
-
-/* ========================================================================= */
-uLong ZEXPORT adler32_combine(adler1, adler2, len2)
-    uLong adler1;
-    uLong adler2;
-    z_off_t len2;
-{
-    unsigned long sum1;
-    unsigned long sum2;
-    unsigned rem;
-
-    /* the derivation of this formula is left as an exercise for the reader */
-    rem = (unsigned)(len2 % BASE);
-    sum1 = adler1 & 0xffff;
-    sum2 = rem * sum1;
-    MOD(sum2);
-    sum1 += (adler2 & 0xffff) + BASE - 1;
-    sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem;
-    if (sum1 > BASE) sum1 -= BASE;
-    if (sum1 > BASE) sum1 -= BASE;
-    if (sum2 > (BASE << 1)) sum2 -= (BASE << 1);
-    if (sum2 > BASE) sum2 -= BASE;
-    return sum1 | (sum2 << 16);
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/algorithm.txt b/components/dfs/filesystems/jffs2/cyg/compress/src/algorithm.txt
deleted file mode 100644
index b022dde312..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/algorithm.txt
+++ /dev/null
@@ -1,209 +0,0 @@
-1. Compression algorithm (deflate)
-
-The deflation algorithm used by gzip (also zip and zlib) is a variation of
-LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in
-the input data.  The second occurrence of a string is replaced by a
-pointer to the previous string, in the form of a pair (distance,
-length).  Distances are limited to 32K bytes, and lengths are limited
-to 258 bytes. When a string does not occur anywhere in the previous
-32K bytes, it is emitted as a sequence of literal bytes.  (In this
-description, `string' must be taken as an arbitrary sequence of bytes,
-and is not restricted to printable characters.)
-
-Literals or match lengths are compressed with one Huffman tree, and
-match distances are compressed with another tree. The trees are stored
-in a compact form at the start of each block. The blocks can have any
-size (except that the compressed data for one block must fit in
-available memory). A block is terminated when deflate() determines that
-it would be useful to start another block with fresh trees. (This is
-somewhat similar to the behavior of LZW-based _compress_.)
-
-Duplicated strings are found using a hash table. All input strings of
-length 3 are inserted in the hash table. A hash index is computed for
-the next 3 bytes. If the hash chain for this index is not empty, all
-strings in the chain are compared with the current input string, and
-the longest match is selected.
-
-The hash chains are searched starting with the most recent strings, to
-favor small distances and thus take advantage of the Huffman encoding.
-The hash chains are singly linked. There are no deletions from the
-hash chains, the algorithm simply discards matches that are too old.
-
-To avoid a worst-case situation, very long hash chains are arbitrarily
-truncated at a certain length, determined by a runtime option (level
-parameter of deflateInit). So deflate() does not always find the longest
-possible match but generally finds a match which is long enough.
-
-deflate() also defers the selection of matches with a lazy evaluation
-mechanism. After a match of length N has been found, deflate() searches for
-a longer match at the next input byte. If a longer match is found, the
-previous match is truncated to a length of one (thus producing a single
-literal byte) and the process of lazy evaluation begins again. Otherwise,
-the original match is kept, and the next match search is attempted only N
-steps later.
-
-The lazy match evaluation is also subject to a runtime parameter. If
-the current match is long enough, deflate() reduces the search for a longer
-match, thus speeding up the whole process. If compression ratio is more
-important than speed, deflate() attempts a complete second search even if
-the first match is already long enough.
-
-The lazy match evaluation is not performed for the fastest compression
-modes (level parameter 1 to 3). For these fast modes, new strings
-are inserted in the hash table only when no match was found, or
-when the match is not too long. This degrades the compression ratio
-but saves time since there are both fewer insertions and fewer searches.
-
-
-2. Decompression algorithm (inflate)
-
-2.1 Introduction
-
-The key question is how to represent a Huffman code (or any prefix code) so
-that you can decode fast.  The most important characteristic is that shorter
-codes are much more common than longer codes, so pay attention to decoding the
-short codes fast, and let the long codes take longer to decode.
-
-inflate() sets up a first level table that covers some number of bits of
-input less than the length of longest code.  It gets that many bits from the
-stream, and looks it up in the table.  The table will tell if the next
-code is that many bits or less and how many, and if it is, it will tell
-the value, else it will point to the next level table for which inflate()
-grabs more bits and tries to decode a longer code.
-
-How many bits to make the first lookup is a tradeoff between the time it
-takes to decode and the time it takes to build the table.  If building the
-table took no time (and if you had infinite memory), then there would only
-be a first level table to cover all the way to the longest code.  However,
-building the table ends up taking a lot longer for more bits since short
-codes are replicated many times in such a table.  What inflate() does is
-simply to make the number of bits in the first table a variable, and  then
-to set that variable for the maximum speed.
-
-For inflate, which has 286 possible codes for the literal/length tree, the size
-of the first table is nine bits.  Also the distance trees have 30 possible
-values, and the size of the first table is six bits.  Note that for each of
-those cases, the table ended up one bit longer than the ``average'' code
-length, i.e. the code length of an approximately flat code which would be a
-little more than eight bits for 286 symbols and a little less than five bits
-for 30 symbols.
-
-
-2.2 More details on the inflate table lookup
-
-Ok, you want to know what this cleverly obfuscated inflate tree actually
-looks like.  You are correct that it's not a Huffman tree.  It is simply a
-lookup table for the first, let's say, nine bits of a Huffman symbol.  The
-symbol could be as short as one bit or as long as 15 bits.  If a particular
-symbol is shorter than nine bits, then that symbol's translation is duplicated
-in all those entries that start with that symbol's bits.  For example, if the
-symbol is four bits, then it's duplicated 32 times in a nine-bit table.  If a
-symbol is nine bits long, it appears in the table once.
-
-If the symbol is longer than nine bits, then that entry in the table points
-to another similar table for the remaining bits.  Again, there are duplicated
-entries as needed.  The idea is that most of the time the symbol will be short
-and there will only be one table look up.  (That's whole idea behind data
-compression in the first place.)  For the less frequent long symbols, there
-will be two lookups.  If you had a compression method with really long
-symbols, you could have as many levels of lookups as is efficient.  For
-inflate, two is enough.
-
-So a table entry either points to another table (in which case nine bits in
-the above example are gobbled), or it contains the translation for the symbol
-and the number of bits to gobble.  Then you start again with the next
-ungobbled bit.
-
-You may wonder: why not just have one lookup table for how ever many bits the
-longest symbol is?  The reason is that if you do that, you end up spending
-more time filling in duplicate symbol entries than you do actually decoding.
-At least for deflate's output that generates new trees every several 10's of
-kbytes.  You can imagine that filling in a 2^15 entry table for a 15-bit code
-would take too long if you're only decoding several thousand symbols.  At the
-other extreme, you could make a new table for every bit in the code.  In fact,
-that's essentially a Huffman tree.  But then you spend two much time
-traversing the tree while decoding, even for short symbols.
-
-So the number of bits for the first lookup table is a trade of the time to
-fill out the table vs. the time spent looking at the second level and above of
-the table.
-
-Here is an example, scaled down:
-
-The code being decoded, with 10 symbols, from 1 to 6 bits long:
-
-A: 0
-B: 10
-C: 1100
-D: 11010
-E: 11011
-F: 11100
-G: 11101
-H: 11110
-I: 111110
-J: 111111
-
-Let's make the first table three bits long (eight entries):
-
-000: A,1
-001: A,1
-010: A,1
-011: A,1
-100: B,2
-101: B,2
-110: -> table X (gobble 3 bits)
-111: -> table Y (gobble 3 bits)
-
-Each entry is what the bits decode as and how many bits that is, i.e. how
-many bits to gobble.  Or the entry points to another table, with the number of
-bits to gobble implicit in the size of the table.
-
-Table X is two bits long since the longest code starting with 110 is five bits
-long:
-
-00: C,1
-01: C,1
-10: D,2
-11: E,2
-
-Table Y is three bits long since the longest code starting with 111 is six
-bits long:
-
-000: F,2
-001: F,2
-010: G,2
-011: G,2
-100: H,2
-101: H,2
-110: I,3
-111: J,3
-
-So what we have here are three tables with a total of 20 entries that had to
-be constructed.  That's compared to 64 entries for a single table.  Or
-compared to 16 entries for a Huffman tree (six two entry tables and one four
-entry table).  Assuming that the code ideally represents the probability of
-the symbols, it takes on the average 1.25 lookups per symbol.  That's compared
-to one lookup for the single table, or 1.66 lookups per symbol for the
-Huffman tree.
-
-There, I think that gives you a picture of what's going on.  For inflate, the
-meaning of a particular symbol is often more than just a letter.  It can be a
-byte (a "literal"), or it can be either a length or a distance which
-indicates a base value and a number of bits to fetch after the code that is
-added to the base value.  Or it might be the special end-of-block code.  The
-data structures created in inftrees.c try to encode all that information
-compactly in the tables.
-
-
-Jean-loup Gailly        Mark Adler
-jloup@gzip.org          madler@alumni.caltech.edu
-
-
-References:
-
-[LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data
-Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3,
-pp. 337-343.
-
-``DEFLATE Compressed Data Format Specification'' available in
-http://www.ietf.org/rfc/rfc1951.txt
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/compress.c b/components/dfs/filesystems/jffs2/cyg/compress/src/compress.c
deleted file mode 100644
index f94974537f..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/compress.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/* compress.c -- compress a memory buffer
- * Copyright (C) 1995-2003 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#define ZLIB_INTERNAL
-#ifdef __ECOS__
-#include <cyg/compress/zlib.h>
-#else
-#include "zlib.h"
-#endif // __ECOS__
-
-/* ===========================================================================
-     Compresses the source buffer into the destination buffer. The level
-   parameter has the same meaning as in deflateInit.  sourceLen is the byte
-   length of the source buffer. Upon entry, destLen is the total size of the
-   destination buffer, which must be at least 0.1% larger than sourceLen plus
-   12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
-
-     compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_BUF_ERROR if there was not enough room in the output buffer,
-   Z_STREAM_ERROR if the level parameter is invalid.
-*/
-int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
-    Bytef *dest;
-    uLongf *destLen;
-    const Bytef *source;
-    uLong sourceLen;
-    int level;
-{
-    z_stream stream;
-    int err;
-
-    stream.next_in = (Bytef*)source;
-    stream.avail_in = (uInt)sourceLen;
-#ifdef MAXSEG_64K
-    /* Check for source > 64K on 16-bit machine: */
-    if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
-#endif
-    stream.next_out = dest;
-    stream.avail_out = (uInt)*destLen;
-    if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
-
-    stream.zalloc = (alloc_func)0;
-    stream.zfree = (free_func)0;
-    stream.opaque = (voidpf)0;
-
-    err = deflateInit(&stream, level);
-    if (err != Z_OK) return err;
-
-    err = deflate(&stream, Z_FINISH);
-    if (err != Z_STREAM_END) {
-        deflateEnd(&stream);
-        return err == Z_OK ? Z_BUF_ERROR : err;
-    }
-    *destLen = stream.total_out;
-
-    err = deflateEnd(&stream);
-    return err;
-}
-
-/* ===========================================================================
- */
-int ZEXPORT compress (dest, destLen, source, sourceLen)
-    Bytef *dest;
-    uLongf *destLen;
-    const Bytef *source;
-    uLong sourceLen;
-{
-    return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
-}
-
-/* ===========================================================================
-     If the default memLevel or windowBits for deflateInit() is changed, then
-   this function needs to be updated.
- */
-uLong ZEXPORT compressBound (sourceLen)
-    uLong sourceLen;
-{
-    return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/configure b/components/dfs/filesystems/jffs2/cyg/compress/src/configure
deleted file mode 100644
index d7ffdc3458..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/configure
+++ /dev/null
@@ -1,459 +0,0 @@
-#!/bin/sh
-# configure script for zlib. This script is needed only if
-# you wish to build a shared library and your system supports them,
-# of if you need special compiler, flags or install directory.
-# Otherwise, you can just use directly "make test; make install"
-#
-# To create a shared library, use "configure --shared"; by default a static
-# library is created. If the primitive shared library support provided here
-# does not work, use ftp://prep.ai.mit.edu/pub/gnu/libtool-*.tar.gz
-#
-# To impose specific compiler or flags or install directory, use for example:
-#    prefix=$HOME CC=cc CFLAGS="-O4" ./configure
-# or for csh/tcsh users:
-#    (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
-# LDSHARED is the command to be used to create a shared library
-
-# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
-# If you have problems, try without defining CC and CFLAGS before reporting
-# an error.
-
-LIBS=libz.a
-LDFLAGS="-L. ${LIBS}"
-VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
-VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h`
-VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h`
-AR=${AR-"ar rc"}
-RANLIB=${RANLIB-"ranlib"}
-prefix=${prefix-/usr/local}
-exec_prefix=${exec_prefix-'${prefix}'}
-libdir=${libdir-'${exec_prefix}/lib'}
-includedir=${includedir-'${prefix}/include'}
-mandir=${mandir-'${prefix}/share/man'}
-shared_ext='.so'
-shared=0
-gcc=0
-old_cc="$CC"
-old_cflags="$CFLAGS"
-
-while test $# -ge 1
-do
-case "$1" in
-    -h* | --h*)
-      echo 'usage:'
-      echo '  configure [--shared] [--prefix=PREFIX]  [--exec_prefix=EXPREFIX]'
-      echo '     [--libdir=LIBDIR] [--includedir=INCLUDEDIR]'
-        exit 0;;
-    -p*=* | --p*=*) prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
-    -e*=* | --e*=*) exec_prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
-    -l*=* | --libdir=*) libdir=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
-    -i*=* | --includedir=*) includedir=`echo $1 | sed 's/[-a-z_]*=//'`;shift;;
-    -p* | --p*) prefix="$2"; shift; shift;;
-    -e* | --e*) exec_prefix="$2"; shift; shift;;
-    -l* | --l*) libdir="$2"; shift; shift;;
-    -i* | --i*) includedir="$2"; shift; shift;;
-    -s* | --s*) shared=1; shift;;
-    *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1;;
-    esac
-done
-
-test=ztest$$
-cat > $test.c <<EOF
-extern int getchar();
-int hello() {return getchar();}
-EOF
-
-test -z "$CC" && echo Checking for gcc...
-cc=${CC-gcc}
-cflags=${CFLAGS-"-O3"}
-# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
-case "$cc" in
-  *gcc*) gcc=1;;
-esac
-
-if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
-  CC="$cc"
-  SFLAGS=${CFLAGS-"-fPIC -O3"}
-  CFLAGS="$cflags"
-  case `(uname -s || echo unknown) 2>/dev/null` in
-  Linux | linux | GNU | GNU/*) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1"};;
-  CYGWIN* | Cygwin* | cygwin* | OS/2* )
-             EXE='.exe';;
-  QNX*)  # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
-         # (alain.bonnefoy@icbt.com)
-                 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"};;
-  HP-UX*)
-         LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
-         case `(uname -m || echo unknown) 2>/dev/null` in
-         ia64)
-                 shared_ext='.so'
-                 SHAREDLIB='libz.so';;
-         *)
-                 shared_ext='.sl'
-                 SHAREDLIB='libz.sl';;
-         esac;;
-  Darwin*)   shared_ext='.dylib'
-             SHAREDLIB=libz$shared_ext
-             SHAREDLIBV=libz.$VER$shared_ext
-             SHAREDLIBM=libz.$VER1$shared_ext
-             LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER"};;
-  *)             LDSHARED=${LDSHARED-"$cc -shared"};;
-  esac
-else
-  # find system name and corresponding cc options
-  CC=${CC-cc}
-  case `(uname -sr || echo unknown) 2>/dev/null` in
-  HP-UX*)    SFLAGS=${CFLAGS-"-O +z"}
-             CFLAGS=${CFLAGS-"-O"}
-#            LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
-             LDSHARED=${LDSHARED-"ld -b"}
-         case `(uname -m || echo unknown) 2>/dev/null` in
-         ia64)
-             shared_ext='.so'
-             SHAREDLIB='libz.so';;
-         *)
-             shared_ext='.sl'
-             SHAREDLIB='libz.sl';;
-         esac;;
-  IRIX*)     SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
-             CFLAGS=${CFLAGS-"-ansi -O2"}
-             LDSHARED=${LDSHARED-"cc -shared"};;
-  OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
-             CFLAGS=${CFLAGS-"-O -std1"}
-             LDSHARED=${LDSHARED-"cc -shared  -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"};;
-  OSF1*)     SFLAGS=${CFLAGS-"-O -std1"}
-             CFLAGS=${CFLAGS-"-O -std1"}
-             LDSHARED=${LDSHARED-"cc -shared"};;
-  QNX*)      SFLAGS=${CFLAGS-"-4 -O"}
-             CFLAGS=${CFLAGS-"-4 -O"}
-             LDSHARED=${LDSHARED-"cc"}
-             RANLIB=${RANLIB-"true"}
-             AR="cc -A";;
-  SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
-             CFLAGS=${CFLAGS-"-O3"}
-             LDSHARED=${LDSHARED-"cc -dy -KPIC -G"};;
-  SunOS\ 5*) SFLAGS=${CFLAGS-"-fast -xcg89 -KPIC -R."}
-             CFLAGS=${CFLAGS-"-fast -xcg89"}
-             LDSHARED=${LDSHARED-"cc -G"};;
-  SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
-             CFLAGS=${CFLAGS-"-O2"}
-             LDSHARED=${LDSHARED-"ld"};;
-  SunStudio\ 9*) SFLAGS=${CFLAGS-"-DUSE_MMAP -fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
-             CFLAGS=${CFLAGS-"-DUSE_MMAP -fast -xtarget=ultra3 -xarch=v9b"}
-             LDSHARED=${LDSHARED-"cc -xarch=v9b"};;
-  UNIX_System_V\ 4.2.0)
-             SFLAGS=${CFLAGS-"-KPIC -O"}
-             CFLAGS=${CFLAGS-"-O"}
-             LDSHARED=${LDSHARED-"cc -G"};;
-  UNIX_SV\ 4.2MP)
-             SFLAGS=${CFLAGS-"-Kconform_pic -O"}
-             CFLAGS=${CFLAGS-"-O"}
-             LDSHARED=${LDSHARED-"cc -G"};;
-  OpenUNIX\ 5)
-             SFLAGS=${CFLAGS-"-KPIC -O"}
-             CFLAGS=${CFLAGS-"-O"}
-             LDSHARED=${LDSHARED-"cc -G"};;
-  AIX*)  # Courtesy of dbakker@arrayasolutions.com
-             SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
-             CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
-             LDSHARED=${LDSHARED-"xlc -G"};;
-  # send working options for other systems to support@gzip.org
-  *)         SFLAGS=${CFLAGS-"-O"}
-             CFLAGS=${CFLAGS-"-O"}
-             LDSHARED=${LDSHARED-"cc -shared"};;
-  esac
-fi
-
-SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
-SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
-SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
-
-if test $shared -eq 1; then
-  echo Checking for shared library support...
-  # we must test in two steps (cc then ld), required at least on SunOS 4.x
-  if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" &&
-     test "`($LDSHARED -o $test$shared_ext $test.o) 2>&1`" = ""; then
-    CFLAGS="$SFLAGS"
-    LIBS="$SHAREDLIBV"
-    echo Building shared library $SHAREDLIBV with $CC.
-  elif test -z "$old_cc" -a -z "$old_cflags"; then
-    echo No shared library support.
-    shared=0;
-  else
-    echo 'No shared library support; try without defining CC and CFLAGS'
-    shared=0;
-  fi
-fi
-if test $shared -eq 0; then
-  LDSHARED="$CC"
-  echo Building static library $LIBS version $VER with $CC.
-else
-  LDFLAGS="-L. ${SHAREDLIBV}"
-fi
-
-cat > $test.c <<EOF
-#include <unistd.h>
-int main() { return 0; }
-EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
-  sed < zconf.in.h "/HAVE_UNISTD_H/s%0%1%" > zconf.h
-  echo "Checking for unistd.h... Yes."
-else
-  cp -p zconf.in.h zconf.h
-  echo "Checking for unistd.h... No."
-fi
-
-cat > $test.c <<EOF
-#include <stdio.h>
-#include <stdarg.h>
-#include "zconf.h"
-
-int main()
-{
-#ifndef STDC
-  choke me
-#endif
-
-  return 0;
-}
-EOF
-
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
-  echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()"
-
-  cat > $test.c <<EOF
-#include <stdio.h>
-#include <stdarg.h>
-
-int mytest(char *fmt, ...)
-{
-  char buf[20];
-  va_list ap;
-
-  va_start(ap, fmt);
-  vsnprintf(buf, sizeof(buf), fmt, ap);
-  va_end(ap);
-  return 0;
-}
-
-int main()
-{
-  return (mytest("Hello%d\n", 1));
-}
-EOF
-
-  if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
-    echo "Checking for vsnprintf() in stdio.h... Yes."
-
-    cat >$test.c <<EOF
-#include <stdio.h>
-#include <stdarg.h>
-
-int mytest(char *fmt, ...)
-{
-  int n;
-  char buf[20];
-  va_list ap;
-
-  va_start(ap, fmt);
-  n = vsnprintf(buf, sizeof(buf), fmt, ap);
-  va_end(ap);
-  return n;
-}
-
-int main()
-{
-  return (mytest("Hello%d\n", 1));
-}
-EOF
-
-    if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
-      echo "Checking for return value of vsnprintf()... Yes."
-    else
-      CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
-      echo "Checking for return value of vsnprintf()... No."
-      echo "  WARNING: apparently vsnprintf() does not return a value. zlib"
-      echo "  can build but will be open to possible string-format security"
-      echo "  vulnerabilities."
-    fi
-  else
-    CFLAGS="$CFLAGS -DNO_vsnprintf"
-    echo "Checking for vsnprintf() in stdio.h... No."
-    echo "  WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
-    echo "  can build but will be open to possible buffer-overflow security"
-    echo "  vulnerabilities."
-
-    cat >$test.c <<EOF
-#include <stdio.h>
-#include <stdarg.h>
-
-int mytest(char *fmt, ...)
-{
-  int n;
-  char buf[20];
-  va_list ap;
-
-  va_start(ap, fmt);
-  n = vsprintf(buf, fmt, ap);
-  va_end(ap);
-  return n;
-}
-
-int main()
-{
-  return (mytest("Hello%d\n", 1));
-}
-EOF
-
-    if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
-      echo "Checking for return value of vsprintf()... Yes."
-    else
-      CFLAGS="$CFLAGS -DHAS_vsprintf_void"
-      echo "Checking for return value of vsprintf()... No."
-      echo "  WARNING: apparently vsprintf() does not return a value. zlib"
-      echo "  can build but will be open to possible string-format security"
-      echo "  vulnerabilities."
-    fi
-  fi
-else
-  echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()"
-
-  cat >$test.c <<EOF
-#include <stdio.h>
-
-int mytest()
-{
-  char buf[20];
-
-  snprintf(buf, sizeof(buf), "%s", "foo");
-  return 0;
-}
-
-int main()
-{
-  return (mytest());
-}
-EOF
-
-  if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
-    echo "Checking for snprintf() in stdio.h... Yes."
-
-    cat >$test.c <<EOF
-#include <stdio.h>
-
-int mytest()
-{
-  char buf[20];
-
-  return snprintf(buf, sizeof(buf), "%s", "foo");
-}
-
-int main()
-{
-  return (mytest());
-}
-EOF
-
-    if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
-      echo "Checking for return value of snprintf()... Yes."
-    else
-      CFLAGS="$CFLAGS -DHAS_snprintf_void"
-      echo "Checking for return value of snprintf()... No."
-      echo "  WARNING: apparently snprintf() does not return a value. zlib"
-      echo "  can build but will be open to possible string-format security"
-      echo "  vulnerabilities."
-    fi
-  else
-    CFLAGS="$CFLAGS -DNO_snprintf"
-    echo "Checking for snprintf() in stdio.h... No."
-    echo "  WARNING: snprintf() not found, falling back to sprintf(). zlib"
-    echo "  can build but will be open to possible buffer-overflow security"
-    echo "  vulnerabilities."
-
-    cat >$test.c <<EOF
-#include <stdio.h>
-
-int mytest()
-{
-  char buf[20];
-
-  return sprintf(buf, "%s", "foo");
-}
-
-int main()
-{
-  return (mytest());
-}
-EOF
-
-    if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
-      echo "Checking for return value of sprintf()... Yes."
-    else
-      CFLAGS="$CFLAGS -DHAS_sprintf_void"
-      echo "Checking for return value of sprintf()... No."
-      echo "  WARNING: apparently sprintf() does not return a value. zlib"
-      echo "  can build but will be open to possible string-format security"
-      echo "  vulnerabilities."
-    fi
-  fi
-fi
-
-cat >$test.c <<EOF
-#include <errno.h>
-int main() { return 0; }
-EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
-  echo "Checking for errno.h... Yes."
-else
-  echo "Checking for errno.h... No."
-  CFLAGS="$CFLAGS -DNO_ERRNO_H"
-fi
-
-cat > $test.c <<EOF
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-caddr_t hello() {
-  return mmap((caddr_t)0, (off_t)0, PROT_READ, MAP_SHARED, 0, (off_t)0);
-}
-EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
-  CFLAGS="$CFLAGS -DUSE_MMAP"
-  echo Checking for mmap support... Yes.
-else
-  echo Checking for mmap support... No.
-fi
-
-CPP=${CPP-"$CC -E"}
-case $CFLAGS in
-  *ASMV*)
-    if test "`nm $test.o | grep _hello`" = ""; then
-      CPP="$CPP -DNO_UNDERLINE"
-      echo Checking for underline in external names... No.
-    else
-      echo Checking for underline in external names... Yes.
-    fi;;
-esac
-
-rm -f $test.[co] $test $test$shared_ext
-
-# udpate Makefile
-sed < Makefile.in "
-/^CC *=/s#=.*#=$CC#
-/^CFLAGS *=/s#=.*#=$CFLAGS#
-/^CPP *=/s#=.*#=$CPP#
-/^LDSHARED *=/s#=.*#=$LDSHARED#
-/^LIBS *=/s#=.*#=$LIBS#
-/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
-/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
-/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
-/^AR *=/s#=.*#=$AR#
-/^RANLIB *=/s#=.*#=$RANLIB#
-/^EXE *=/s#=.*#=$EXE#
-/^prefix *=/s#=.*#=$prefix#
-/^exec_prefix *=/s#=.*#=$exec_prefix#
-/^libdir *=/s#=.*#=$libdir#
-/^includedir *=/s#=.*#=$includedir#
-/^mandir *=/s#=.*#=$mandir#
-/^LDFLAGS *=/s#=.*#=$LDFLAGS#
-" > Makefile
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/deflate.c b/components/dfs/filesystems/jffs2/cyg/compress/src/deflate.c
deleted file mode 100644
index 29ce1f64a5..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/deflate.c
+++ /dev/null
@@ -1,1736 +0,0 @@
-/* deflate.c -- compress data using the deflation algorithm
- * Copyright (C) 1995-2005 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- *  ALGORITHM
- *
- *      The "deflation" process depends on being able to identify portions
- *      of the input text which are identical to earlier input (within a
- *      sliding window trailing behind the input currently being processed).
- *
- *      The most straightforward technique turns out to be the fastest for
- *      most input files: try all possible matches and select the longest.
- *      The key feature of this algorithm is that insertions into the string
- *      dictionary are very simple and thus fast, and deletions are avoided
- *      completely. Insertions are performed at each input character, whereas
- *      string matches are performed only when the previous match ends. So it
- *      is preferable to spend more time in matches to allow very fast string
- *      insertions and avoid deletions. The matching algorithm for small
- *      strings is inspired from that of Rabin & Karp. A brute force approach
- *      is used to find longer strings when a small match has been found.
- *      A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
- *      (by Leonid Broukhis).
- *         A previous version of this file used a more sophisticated algorithm
- *      (by Fiala and Greene) which is guaranteed to run in linear amortized
- *      time, but has a larger average cost, uses more memory and is patented.
- *      However the F&G algorithm may be faster for some highly redundant
- *      files if the parameter max_chain_length (described below) is too large.
- *
- *  ACKNOWLEDGEMENTS
- *
- *      The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
- *      I found it in 'freeze' written by Leonid Broukhis.
- *      Thanks to many people for bug reports and testing.
- *
- *  REFERENCES
- *
- *      Deutsch, L.P.,"DEFLATE Compressed Data Format Specification".
- *      Available in http://www.ietf.org/rfc/rfc1951.txt
- *
- *      A description of the Rabin and Karp algorithm is given in the book
- *         "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
- *
- *      Fiala,E.R., and Greene,D.H.
- *         Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
- *
- */
-
-/* @(#) $Id$ */
-
-#include "deflate.h"
-
-const char deflate_copyright[] =
-   " deflate 1.2.3 Copyright 1995-2005 Jean-loup Gailly ";
-/*
-  If you use the zlib library in a product, an acknowledgment is welcome
-  in the documentation of your product. If for some reason you cannot
-  include such an acknowledgment, I would appreciate that you keep this
-  copyright string in the executable of your product.
- */
-
-/* ===========================================================================
- *  Function prototypes.
- */
-typedef enum {
-    need_more,      /* block not completed, need more input or more output */
-    block_done,     /* block flush performed */
-    finish_started, /* finish started, need only more output at next deflate */
-    finish_done     /* finish done, accept no more input or output */
-} block_state;
-
-typedef block_state (*compress_func) OF((deflate_state *s, int flush));
-/* Compression function. Returns the block state after the call. */
-
-local void fill_window    OF((deflate_state *s));
-local block_state deflate_stored OF((deflate_state *s, int flush));
-local block_state deflate_fast   OF((deflate_state *s, int flush));
-#ifndef FASTEST
-local block_state deflate_slow   OF((deflate_state *s, int flush));
-#endif
-local void lm_init        OF((deflate_state *s));
-local void putShortMSB    OF((deflate_state *s, uInt b));
-local void flush_pending  OF((z_streamp strm));
-local int read_buf        OF((z_streamp strm, Bytef *buf, unsigned size));
-#ifndef FASTEST
-#ifdef ASMV
-      void match_init OF((void)); /* asm code initialization */
-      uInt longest_match  OF((deflate_state *s, IPos cur_match));
-#else
-local uInt longest_match  OF((deflate_state *s, IPos cur_match));
-#endif
-#endif
-local uInt longest_match_fast OF((deflate_state *s, IPos cur_match));
-
-#ifdef DEBUG
-local  void check_match OF((deflate_state *s, IPos start, IPos match,
-                            int length));
-#endif
-
-/* ===========================================================================
- * Local data
- */
-
-#define NIL 0
-/* Tail of hash chains */
-
-#ifndef TOO_FAR
-#  define TOO_FAR 4096
-#endif
-/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
-
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
-/* Minimum amount of lookahead, except at the end of the input file.
- * See deflate.c for comments about the MIN_MATCH+1.
- */
-
-/* Values for max_lazy_match, good_match and max_chain_length, depending on
- * the desired pack level (0..9). The values given below have been tuned to
- * exclude worst case performance for pathological files. Better values may be
- * found for specific files.
- */
-typedef struct config_s {
-   ush good_length; /* reduce lazy search above this match length */
-   ush max_lazy;    /* do not perform lazy search above this match length */
-   ush nice_length; /* quit search above this match length */
-   ush max_chain;
-   compress_func func;
-} config;
-
-#ifdef FASTEST
-local const config configuration_table[2] = {
-/*      good lazy nice chain */
-/* 0 */ {0,    0,  0,    0, deflate_stored},  /* store only */
-/* 1 */ {4,    4,  8,    4, deflate_fast}}; /* max speed, no lazy matches */
-#else
-local const config configuration_table[10] = {
-/*      good lazy nice chain */
-/* 0 */ {0,    0,  0,    0, deflate_stored},  /* store only */
-/* 1 */ {4,    4,  8,    4, deflate_fast}, /* max speed, no lazy matches */
-/* 2 */ {4,    5, 16,    8, deflate_fast},
-/* 3 */ {4,    6, 32,   32, deflate_fast},
-
-/* 4 */ {4,    4, 16,   16, deflate_slow},  /* lazy matches */
-/* 5 */ {8,   16, 32,   32, deflate_slow},
-/* 6 */ {8,   16, 128, 128, deflate_slow},
-/* 7 */ {8,   32, 128, 256, deflate_slow},
-/* 8 */ {32, 128, 258, 1024, deflate_slow},
-/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */
-#endif
-
-/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
- * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
- * meaning.
- */
-
-#define EQUAL 0
-/* result of memcmp for equal strings */
-
-#ifndef NO_DUMMY_DECL
-struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
-#endif
-
-/* ===========================================================================
- * Update a hash value with the given input byte
- * IN  assertion: all calls to to UPDATE_HASH are made with consecutive
- *    input characters, so that a running hash key can be computed from the
- *    previous key instead of complete recalculation each time.
- */
-#define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)
-
-
-/* ===========================================================================
- * Insert string str in the dictionary and set match_head to the previous head
- * of the hash chain (the most recent string with same hash key). Return
- * the previous length of the hash chain.
- * If this file is compiled with -DFASTEST, the compression level is forced
- * to 1, and no hash chains are maintained.
- * IN  assertion: all calls to to INSERT_STRING are made with consecutive
- *    input characters and the first MIN_MATCH bytes of str are valid
- *    (except for the last MIN_MATCH-1 bytes of the input file).
- */
-#ifdef FASTEST
-#define INSERT_STRING(s, str, match_head) \
-   (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
-    match_head = s->head[s->ins_h], \
-    s->head[s->ins_h] = (Pos)(str))
-#else
-#define INSERT_STRING(s, str, match_head) \
-   (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
-    match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \
-    s->head[s->ins_h] = (Pos)(str))
-#endif
-
-/* ===========================================================================
- * Initialize the hash table (avoiding 64K overflow for 16 bit systems).
- * prev[] will be initialized on the fly.
- */
-#define CLEAR_HASH(s) \
-    s->head[s->hash_size-1] = NIL; \
-    zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
-
-/* ========================================================================= */
-int ZEXPORT deflateInit_(strm, level, version, stream_size)
-    z_streamp strm;
-    int level;
-    const char *version;
-    int stream_size;
-{
-    return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL,
-                         Z_DEFAULT_STRATEGY, version, stream_size);
-    /* To do: ignore strm->next_in if we use it as window */
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
-                  version, stream_size)
-    z_streamp strm;
-    int  level;
-    int  method;
-    int  windowBits;
-    int  memLevel;
-    int  strategy;
-    const char *version;
-    int stream_size;
-{
-    deflate_state *s;
-    int wrap = 1;
-    static const char my_version[] = ZLIB_VERSION;
-
-    ushf *overlay;
-    /* We overlay pending_buf and d_buf+l_buf. This works since the average
-     * output size for (length,distance) codes is <= 24 bits.
-     */
-
-    if (version == Z_NULL || version[0] != my_version[0] ||
-        stream_size != sizeof(z_stream)) {
-        return Z_VERSION_ERROR;
-    }
-    if (strm == Z_NULL) return Z_STREAM_ERROR;
-
-    strm->msg = Z_NULL;
-    if (strm->zalloc == (alloc_func)0) {
-        strm->zalloc = zcalloc;
-        strm->opaque = (voidpf)0;
-    }
-    if (strm->zfree == (free_func)0) strm->zfree = zcfree;
-
-#ifdef FASTEST
-    if (level != 0) level = 1;
-#else
-    if (level == Z_DEFAULT_COMPRESSION) level = 6;
-#endif
-
-    if (windowBits < 0) { /* suppress zlib wrapper */
-        wrap = 0;
-        windowBits = -windowBits;
-    }
-#ifdef GZIP
-    else if (windowBits > 15) {
-        wrap = 2;       /* write gzip wrapper instead */
-        windowBits -= 16;
-    }
-#endif
-    if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
-        windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
-        strategy < 0 || strategy > Z_FIXED) {
-        return Z_STREAM_ERROR;
-    }
-    if (windowBits == 8) windowBits = 9;  /* until 256-byte window bug fixed */
-    s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state));
-    if (s == Z_NULL) return Z_MEM_ERROR;
-    strm->state = (struct internal_state FAR *)s;
-    s->strm = strm;
-
-    s->wrap = wrap;
-    s->gzhead = Z_NULL;
-    s->w_bits = windowBits;
-    s->w_size = 1 << s->w_bits;
-    s->w_mask = s->w_size - 1;
-
-    s->hash_bits = memLevel + 7;
-    s->hash_size = 1 << s->hash_bits;
-    s->hash_mask = s->hash_size - 1;
-    s->hash_shift =  ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH);
-
-    s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte));
-    s->prev   = (Posf *)  ZALLOC(strm, s->w_size, sizeof(Pos));
-    s->head   = (Posf *)  ZALLOC(strm, s->hash_size, sizeof(Pos));
-
-    s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
-
-    overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
-    s->pending_buf = (uchf *) overlay;
-    s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L);
-
-    if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
-        s->pending_buf == Z_NULL) {
-        s->status = FINISH_STATE;
-        strm->msg = (char*)ERR_MSG(Z_MEM_ERROR);
-        deflateEnd (strm);
-        return Z_MEM_ERROR;
-    }
-    s->d_buf = overlay + s->lit_bufsize/sizeof(ush);
-    s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize;
-
-    s->level = level;
-    s->strategy = strategy;
-    s->method = (Byte)method;
-
-    return deflateReset(strm);
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
-    z_streamp strm;
-    const Bytef *dictionary;
-    uInt  dictLength;
-{
-    deflate_state *s;
-    uInt length = dictLength;
-    uInt n;
-    IPos hash_head = 0;
-
-    if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL ||
-        strm->state->wrap == 2 ||
-        (strm->state->wrap == 1 && strm->state->status != INIT_STATE))
-        return Z_STREAM_ERROR;
-
-    s = strm->state;
-    if (s->wrap)
-        strm->adler = adler32(strm->adler, dictionary, dictLength);
-
-    if (length < MIN_MATCH) return Z_OK;
-    if (length > MAX_DIST(s)) {
-        length = MAX_DIST(s);
-        dictionary += dictLength - length; /* use the tail of the dictionary */
-    }
-    zmemcpy(s->window, dictionary, length);
-    s->strstart = length;
-    s->block_start = (long)length;
-
-    /* Insert all strings in the hash table (except for the last two bytes).
-     * s->lookahead stays null, so s->ins_h will be recomputed at the next
-     * call of fill_window.
-     */
-    s->ins_h = s->window[0];
-    UPDATE_HASH(s, s->ins_h, s->window[1]);
-    for (n = 0; n <= length - MIN_MATCH; n++) {
-        INSERT_STRING(s, n, hash_head);
-    }
-    if (hash_head) hash_head = 0;  /* to make compiler happy */
-    return Z_OK;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateReset (strm)
-    z_streamp strm;
-{
-    deflate_state *s;
-
-    if (strm == Z_NULL || strm->state == Z_NULL ||
-        strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) {
-        return Z_STREAM_ERROR;
-    }
-
-    strm->total_in = strm->total_out = 0;
-    strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */
-    strm->data_type = Z_UNKNOWN;
-
-    s = (deflate_state *)strm->state;
-    s->pending = 0;
-    s->pending_out = s->pending_buf;
-
-    if (s->wrap < 0) {
-        s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */
-    }
-    s->status = s->wrap ? INIT_STATE : BUSY_STATE;
-    strm->adler =
-#ifdef GZIP
-        s->wrap == 2 ? crc32(0L, Z_NULL, 0) :
-#endif
-        adler32(0L, Z_NULL, 0);
-    s->last_flush = Z_NO_FLUSH;
-
-    _tr_init(s);
-    lm_init(s);
-
-    return Z_OK;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateSetHeader (strm, head)
-    z_streamp strm;
-    gz_headerp head;
-{
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    if (strm->state->wrap != 2) return Z_STREAM_ERROR;
-    strm->state->gzhead = head;
-    return Z_OK;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflatePrime (strm, bits, value)
-    z_streamp strm;
-    int bits;
-    int value;
-{
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    strm->state->bi_valid = bits;
-    strm->state->bi_buf = (ush)(value & ((1 << bits) - 1));
-    return Z_OK;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateParams(strm, level, strategy)
-    z_streamp strm;
-    int level;
-    int strategy;
-{
-    deflate_state *s;
-    compress_func func;
-    int err = Z_OK;
-
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    s = strm->state;
-
-#ifdef FASTEST
-    if (level != 0) level = 1;
-#else
-    if (level == Z_DEFAULT_COMPRESSION) level = 6;
-#endif
-    if (level < 0 || level > 9 || strategy < 0 || strategy > Z_FIXED) {
-        return Z_STREAM_ERROR;
-    }
-    func = configuration_table[s->level].func;
-
-    if (func != configuration_table[level].func && strm->total_in != 0) {
-        /* Flush the last buffer: */
-        err = deflate(strm, Z_PARTIAL_FLUSH);
-    }
-    if (s->level != level) {
-        s->level = level;
-        s->max_lazy_match   = configuration_table[level].max_lazy;
-        s->good_match       = configuration_table[level].good_length;
-        s->nice_match       = configuration_table[level].nice_length;
-        s->max_chain_length = configuration_table[level].max_chain;
-    }
-    s->strategy = strategy;
-    return err;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain)
-    z_streamp strm;
-    int good_length;
-    int max_lazy;
-    int nice_length;
-    int max_chain;
-{
-    deflate_state *s;
-
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    s = strm->state;
-    s->good_match = good_length;
-    s->max_lazy_match = max_lazy;
-    s->nice_match = nice_length;
-    s->max_chain_length = max_chain;
-    return Z_OK;
-}
-
-/* =========================================================================
- * For the default windowBits of 15 and memLevel of 8, this function returns
- * a close to exact, as well as small, upper bound on the compressed size.
- * They are coded as constants here for a reason--if the #define's are
- * changed, then this function needs to be changed as well.  The return
- * value for 15 and 8 only works for those exact settings.
- *
- * For any setting other than those defaults for windowBits and memLevel,
- * the value returned is a conservative worst case for the maximum expansion
- * resulting from using fixed blocks instead of stored blocks, which deflate
- * can emit on compressed data for some combinations of the parameters.
- *
- * This function could be more sophisticated to provide closer upper bounds
- * for every combination of windowBits and memLevel, as well as wrap.
- * But even the conservative upper bound of about 14% expansion does not
- * seem onerous for output buffer allocation.
- */
-uLong ZEXPORT deflateBound(strm, sourceLen)
-    z_streamp strm;
-    uLong sourceLen;
-{
-    deflate_state *s;
-    uLong destLen;
-
-    /* conservative upper bound */
-    destLen = sourceLen +
-              ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 11;
-
-    /* if can't get parameters, return conservative bound */
-    if (strm == Z_NULL || strm->state == Z_NULL)
-        return destLen;
-
-    /* if not default parameters, return conservative bound */
-    s = strm->state;
-    if (s->w_bits != 15 || s->hash_bits != 8 + 7)
-        return destLen;
-
-    /* default settings: return tight bound for that case */
-    return compressBound(sourceLen);
-}
-
-/* =========================================================================
- * Put a short in the pending buffer. The 16-bit value is put in MSB order.
- * IN assertion: the stream state is correct and there is enough room in
- * pending_buf.
- */
-local void putShortMSB (s, b)
-    deflate_state *s;
-    uInt b;
-{
-    put_byte(s, (Byte)(b >> 8));
-    put_byte(s, (Byte)(b & 0xff));
-}
-
-/* =========================================================================
- * Flush as much pending output as possible. All deflate() output goes
- * through this function so some applications may wish to modify it
- * to avoid allocating a large strm->next_out buffer and copying into it.
- * (See also read_buf()).
- */
-local void flush_pending(strm)
-    z_streamp strm;
-{
-    unsigned len = strm->state->pending;
-
-    if (len > strm->avail_out) len = strm->avail_out;
-    if (len == 0) return;
-
-    zmemcpy(strm->next_out, strm->state->pending_out, len);
-    strm->next_out  += len;
-    strm->state->pending_out  += len;
-    strm->total_out += len;
-    strm->avail_out  -= len;
-    strm->state->pending -= len;
-    if (strm->state->pending == 0) {
-        strm->state->pending_out = strm->state->pending_buf;
-    }
-}
-
-/* ========================================================================= */
-int ZEXPORT deflate (strm, flush)
-    z_streamp strm;
-    int flush;
-{
-    int old_flush; /* value of flush param for previous deflate call */
-    deflate_state *s;
-
-    if (strm == Z_NULL || strm->state == Z_NULL ||
-        flush > Z_FINISH || flush < 0) {
-        return Z_STREAM_ERROR;
-    }
-    s = strm->state;
-
-    if (strm->next_out == Z_NULL ||
-        (strm->next_in == Z_NULL && strm->avail_in != 0) ||
-        (s->status == FINISH_STATE && flush != Z_FINISH)) {
-        ERR_RETURN(strm, Z_STREAM_ERROR);
-    }
-    if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);
-
-    s->strm = strm; /* just in case */
-    old_flush = s->last_flush;
-    s->last_flush = flush;
-
-    /* Write the header */
-    if (s->status == INIT_STATE) {
-#ifdef GZIP
-        if (s->wrap == 2) {
-            strm->adler = crc32(0L, Z_NULL, 0);
-            put_byte(s, 31);
-            put_byte(s, 139);
-            put_byte(s, 8);
-            if (s->gzhead == NULL) {
-                put_byte(s, 0);
-                put_byte(s, 0);
-                put_byte(s, 0);
-                put_byte(s, 0);
-                put_byte(s, 0);
-                put_byte(s, s->level == 9 ? 2 :
-                            (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
-                             4 : 0));
-                put_byte(s, OS_CODE);
-                s->status = BUSY_STATE;
-            }
-            else {
-                put_byte(s, (s->gzhead->text ? 1 : 0) +
-                            (s->gzhead->hcrc ? 2 : 0) +
-                            (s->gzhead->extra == Z_NULL ? 0 : 4) +
-                            (s->gzhead->name == Z_NULL ? 0 : 8) +
-                            (s->gzhead->comment == Z_NULL ? 0 : 16)
-                        );
-                put_byte(s, (Byte)(s->gzhead->time & 0xff));
-                put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff));
-                put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff));
-                put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff));
-                put_byte(s, s->level == 9 ? 2 :
-                            (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
-                             4 : 0));
-                put_byte(s, s->gzhead->os & 0xff);
-                if (s->gzhead->extra != NULL) {
-                    put_byte(s, s->gzhead->extra_len & 0xff);
-                    put_byte(s, (s->gzhead->extra_len >> 8) & 0xff);
-                }
-                if (s->gzhead->hcrc)
-                    strm->adler = crc32(strm->adler, s->pending_buf,
-                                        s->pending);
-                s->gzindex = 0;
-                s->status = EXTRA_STATE;
-            }
-        }
-        else
-#endif
-        {
-            uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8;
-            uInt level_flags;
-
-            if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2)
-                level_flags = 0;
-            else if (s->level < 6)
-                level_flags = 1;
-            else if (s->level == 6)
-                level_flags = 2;
-            else
-                level_flags = 3;
-            header |= (level_flags << 6);
-            if (s->strstart != 0) header |= PRESET_DICT;
-            header += 31 - (header % 31);
-
-            s->status = BUSY_STATE;
-            putShortMSB(s, header);
-
-            /* Save the adler32 of the preset dictionary: */
-            if (s->strstart != 0) {
-                putShortMSB(s, (uInt)(strm->adler >> 16));
-                putShortMSB(s, (uInt)(strm->adler & 0xffff));
-            }
-            strm->adler = adler32(0L, Z_NULL, 0);
-        }
-    }
-#ifdef GZIP
-    if (s->status == EXTRA_STATE) {
-        if (s->gzhead->extra != NULL) {
-            uInt beg = s->pending;  /* start of bytes to update crc */
-
-            while (s->gzindex < (s->gzhead->extra_len & 0xffff)) {
-                if (s->pending == s->pending_buf_size) {
-                    if (s->gzhead->hcrc && s->pending > beg)
-                        strm->adler = crc32(strm->adler, s->pending_buf + beg,
-                                            s->pending - beg);
-                    flush_pending(strm);
-                    beg = s->pending;
-                    if (s->pending == s->pending_buf_size)
-                        break;
-                }
-                put_byte(s, s->gzhead->extra[s->gzindex]);
-                s->gzindex++;
-            }
-            if (s->gzhead->hcrc && s->pending > beg)
-                strm->adler = crc32(strm->adler, s->pending_buf + beg,
-                                    s->pending - beg);
-            if (s->gzindex == s->gzhead->extra_len) {
-                s->gzindex = 0;
-                s->status = NAME_STATE;
-            }
-        }
-        else
-            s->status = NAME_STATE;
-    }
-    if (s->status == NAME_STATE) {
-        if (s->gzhead->name != NULL) {
-            uInt beg = s->pending;  /* start of bytes to update crc */
-            int val;
-
-            do {
-                if (s->pending == s->pending_buf_size) {
-                    if (s->gzhead->hcrc && s->pending > beg)
-                        strm->adler = crc32(strm->adler, s->pending_buf + beg,
-                                            s->pending - beg);
-                    flush_pending(strm);
-                    beg = s->pending;
-                    if (s->pending == s->pending_buf_size) {
-                        val = 1;
-                        break;
-                    }
-                }
-                val = s->gzhead->name[s->gzindex++];
-                put_byte(s, val);
-            } while (val != 0);
-            if (s->gzhead->hcrc && s->pending > beg)
-                strm->adler = crc32(strm->adler, s->pending_buf + beg,
-                                    s->pending - beg);
-            if (val == 0) {
-                s->gzindex = 0;
-                s->status = COMMENT_STATE;
-            }
-        }
-        else
-            s->status = COMMENT_STATE;
-    }
-    if (s->status == COMMENT_STATE) {
-        if (s->gzhead->comment != NULL) {
-            uInt beg = s->pending;  /* start of bytes to update crc */
-            int val;
-
-            do {
-                if (s->pending == s->pending_buf_size) {
-                    if (s->gzhead->hcrc && s->pending > beg)
-                        strm->adler = crc32(strm->adler, s->pending_buf + beg,
-                                            s->pending - beg);
-                    flush_pending(strm);
-                    beg = s->pending;
-                    if (s->pending == s->pending_buf_size) {
-                        val = 1;
-                        break;
-                    }
-                }
-                val = s->gzhead->comment[s->gzindex++];
-                put_byte(s, val);
-            } while (val != 0);
-            if (s->gzhead->hcrc && s->pending > beg)
-                strm->adler = crc32(strm->adler, s->pending_buf + beg,
-                                    s->pending - beg);
-            if (val == 0)
-                s->status = HCRC_STATE;
-        }
-        else
-            s->status = HCRC_STATE;
-    }
-    if (s->status == HCRC_STATE) {
-        if (s->gzhead->hcrc) {
-            if (s->pending + 2 > s->pending_buf_size)
-                flush_pending(strm);
-            if (s->pending + 2 <= s->pending_buf_size) {
-                put_byte(s, (Byte)(strm->adler & 0xff));
-                put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
-                strm->adler = crc32(0L, Z_NULL, 0);
-                s->status = BUSY_STATE;
-            }
-        }
-        else
-            s->status = BUSY_STATE;
-    }
-#endif
-
-    /* Flush as much pending output as possible */
-    if (s->pending != 0) {
-        flush_pending(strm);
-        if (strm->avail_out == 0) {
-            /* Since avail_out is 0, deflate will be called again with
-             * more output space, but possibly with both pending and
-             * avail_in equal to zero. There won't be anything to do,
-             * but this is not an error situation so make sure we
-             * return OK instead of BUF_ERROR at next call of deflate:
-             */
-            s->last_flush = -1;
-            return Z_OK;
-        }
-
-    /* Make sure there is something to do and avoid duplicate consecutive
-     * flushes. For repeated and useless calls with Z_FINISH, we keep
-     * returning Z_STREAM_END instead of Z_BUF_ERROR.
-     */
-    } else if (strm->avail_in == 0 && flush <= old_flush &&
-               flush != Z_FINISH) {
-        ERR_RETURN(strm, Z_BUF_ERROR);
-    }
-
-    /* User must not provide more input after the first FINISH: */
-    if (s->status == FINISH_STATE && strm->avail_in != 0) {
-        ERR_RETURN(strm, Z_BUF_ERROR);
-    }
-
-    /* Start a new block or continue the current one.
-     */
-    if (strm->avail_in != 0 || s->lookahead != 0 ||
-        (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
-        block_state bstate;
-
-        bstate = (*(configuration_table[s->level].func))(s, flush);
-
-        if (bstate == finish_started || bstate == finish_done) {
-            s->status = FINISH_STATE;
-        }
-        if (bstate == need_more || bstate == finish_started) {
-            if (strm->avail_out == 0) {
-                s->last_flush = -1; /* avoid BUF_ERROR next call, see above */
-            }
-            return Z_OK;
-            /* If flush != Z_NO_FLUSH && avail_out == 0, the next call
-             * of deflate should use the same flush parameter to make sure
-             * that the flush is complete. So we don't have to output an
-             * empty block here, this will be done at next call. This also
-             * ensures that for a very small output buffer, we emit at most
-             * one empty block.
-             */
-        }
-        if (bstate == block_done) {
-            if (flush == Z_PARTIAL_FLUSH) {
-                _tr_align(s);
-            } else { /* FULL_FLUSH or SYNC_FLUSH */
-                _tr_stored_block(s, (char*)0, 0L, 0);
-                /* For a full flush, this empty block will be recognized
-                 * as a special marker by inflate_sync().
-                 */
-                if (flush == Z_FULL_FLUSH) {
-                    CLEAR_HASH(s);             /* forget history */
-                }
-            }
-            flush_pending(strm);
-            if (strm->avail_out == 0) {
-              s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */
-              return Z_OK;
-            }
-        }
-    }
-    Assert(strm->avail_out > 0, "bug2");
-
-    if (flush != Z_FINISH) return Z_OK;
-    if (s->wrap <= 0) return Z_STREAM_END;
-
-    /* Write the trailer */
-#ifdef GZIP
-    if (s->wrap == 2) {
-        put_byte(s, (Byte)(strm->adler & 0xff));
-        put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
-        put_byte(s, (Byte)((strm->adler >> 16) & 0xff));
-        put_byte(s, (Byte)((strm->adler >> 24) & 0xff));
-        put_byte(s, (Byte)(strm->total_in & 0xff));
-        put_byte(s, (Byte)((strm->total_in >> 8) & 0xff));
-        put_byte(s, (Byte)((strm->total_in >> 16) & 0xff));
-        put_byte(s, (Byte)((strm->total_in >> 24) & 0xff));
-    }
-    else
-#endif
-    {
-        putShortMSB(s, (uInt)(strm->adler >> 16));
-        putShortMSB(s, (uInt)(strm->adler & 0xffff));
-    }
-    flush_pending(strm);
-    /* If avail_out is zero, the application will call deflate again
-     * to flush the rest.
-     */
-    if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */
-    return s->pending != 0 ? Z_OK : Z_STREAM_END;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateEnd (strm)
-    z_streamp strm;
-{
-    int status;
-
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-
-    status = strm->state->status;
-    if (status != INIT_STATE &&
-        status != EXTRA_STATE &&
-        status != NAME_STATE &&
-        status != COMMENT_STATE &&
-        status != HCRC_STATE &&
-        status != BUSY_STATE &&
-        status != FINISH_STATE) {
-      return Z_STREAM_ERROR;
-    }
-
-    /* Deallocate in reverse order of allocations: */
-    TRY_FREE(strm, strm->state->pending_buf);
-    TRY_FREE(strm, strm->state->head);
-    TRY_FREE(strm, strm->state->prev);
-    TRY_FREE(strm, strm->state->window);
-
-    ZFREE(strm, strm->state);
-    strm->state = Z_NULL;
-
-    return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK;
-}
-
-/* =========================================================================
- * Copy the source state to the destination state.
- * To simplify the source, this is not supported for 16-bit MSDOS (which
- * doesn't have enough memory anyway to duplicate compression states).
- */
-int ZEXPORT deflateCopy (dest, source)
-    z_streamp dest;
-    z_streamp source;
-{
-#ifdef MAXSEG_64K
-    return Z_STREAM_ERROR;
-#else
-    deflate_state *ds;
-    deflate_state *ss;
-    ushf *overlay;
-
-
-    if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) {
-        return Z_STREAM_ERROR;
-    }
-
-    ss = source->state;
-
-    zmemcpy(dest, source, sizeof(z_stream));
-
-    ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
-    if (ds == Z_NULL) return Z_MEM_ERROR;
-    dest->state = (struct internal_state FAR *) ds;
-    zmemcpy(ds, ss, sizeof(deflate_state));
-    ds->strm = dest;
-
-    ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
-    ds->prev   = (Posf *)  ZALLOC(dest, ds->w_size, sizeof(Pos));
-    ds->head   = (Posf *)  ZALLOC(dest, ds->hash_size, sizeof(Pos));
-    overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2);
-    ds->pending_buf = (uchf *) overlay;
-
-    if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
-        ds->pending_buf == Z_NULL) {
-        deflateEnd (dest);
-        return Z_MEM_ERROR;
-    }
-    /* following zmemcpy do not work for 16-bit MSDOS */
-    zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
-    zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos));
-    zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos));
-    zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
-
-    ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
-    ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush);
-    ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize;
-
-    ds->l_desc.dyn_tree = ds->dyn_ltree;
-    ds->d_desc.dyn_tree = ds->dyn_dtree;
-    ds->bl_desc.dyn_tree = ds->bl_tree;
-
-    return Z_OK;
-#endif /* MAXSEG_64K */
-}
-
-/* ===========================================================================
- * Read a new buffer from the current input stream, update the adler32
- * and total number of bytes read.  All deflate() input goes through
- * this function so some applications may wish to modify it to avoid
- * allocating a large strm->next_in buffer and copying from it.
- * (See also flush_pending()).
- */
-local int read_buf(strm, buf, size)
-    z_streamp strm;
-    Bytef *buf;
-    unsigned size;
-{
-    unsigned len = strm->avail_in;
-
-    if (len > size) len = size;
-    if (len == 0) return 0;
-
-    strm->avail_in  -= len;
-
-    if (strm->state->wrap == 1) {
-        strm->adler = adler32(strm->adler, strm->next_in, len);
-    }
-#ifdef GZIP
-    else if (strm->state->wrap == 2) {
-        strm->adler = crc32(strm->adler, strm->next_in, len);
-    }
-#endif
-    zmemcpy(buf, strm->next_in, len);
-    strm->next_in  += len;
-    strm->total_in += len;
-
-    return (int)len;
-}
-
-/* ===========================================================================
- * Initialize the "longest match" routines for a new zlib stream
- */
-local void lm_init (s)
-    deflate_state *s;
-{
-    s->window_size = (ulg)2L*s->w_size;
-
-    CLEAR_HASH(s);
-
-    /* Set the default configuration parameters:
-     */
-    s->max_lazy_match   = configuration_table[s->level].max_lazy;
-    s->good_match       = configuration_table[s->level].good_length;
-    s->nice_match       = configuration_table[s->level].nice_length;
-    s->max_chain_length = configuration_table[s->level].max_chain;
-
-    s->strstart = 0;
-    s->block_start = 0L;
-    s->lookahead = 0;
-    s->match_length = s->prev_length = MIN_MATCH-1;
-    s->match_available = 0;
-    s->ins_h = 0;
-#ifndef FASTEST
-#ifdef ASMV
-    match_init(); /* initialize the asm code */
-#endif
-#endif
-}
-
-#ifndef FASTEST
-/* ===========================================================================
- * Set match_start to the longest match starting at the given string and
- * return its length. Matches shorter or equal to prev_length are discarded,
- * in which case the result is equal to prev_length and match_start is
- * garbage.
- * IN assertions: cur_match is the head of the hash chain for the current
- *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
- * OUT assertion: the match length is not greater than s->lookahead.
- */
-#ifndef ASMV
-/* For 80x86 and 680x0, an optimized version will be provided in match.asm or
- * match.S. The code will be functionally equivalent.
- */
-local uInt longest_match(s, cur_match)
-    deflate_state *s;
-    IPos cur_match;                             /* current match */
-{
-    unsigned chain_length = s->max_chain_length;/* max hash chain length */
-    register Bytef *scan = s->window + s->strstart; /* current string */
-    register Bytef *match;                       /* matched string */
-    register int len;                           /* length of current match */
-    int best_len = s->prev_length;              /* best match length so far */
-    int nice_match = s->nice_match;             /* stop if match long enough */
-    IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
-        s->strstart - (IPos)MAX_DIST(s) : NIL;
-    /* Stop when cur_match becomes <= limit. To simplify the code,
-     * we prevent matches with the string of window index 0.
-     */
-    Posf *prev = s->prev;
-    uInt wmask = s->w_mask;
-
-#ifdef UNALIGNED_OK
-    /* Compare two bytes at a time. Note: this is not always beneficial.
-     * Try with and without -DUNALIGNED_OK to check.
-     */
-    register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
-    register ush scan_start = *(ushf*)scan;
-    register ush scan_end   = *(ushf*)(scan+best_len-1);
-#else
-    register Bytef *strend = s->window + s->strstart + MAX_MATCH;
-    register Byte scan_end1  = scan[best_len-1];
-    register Byte scan_end   = scan[best_len];
-#endif
-
-    /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
-     * It is easy to get rid of this optimization if necessary.
-     */
-    Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
-
-    /* Do not waste too much time if we already have a good match: */
-    if (s->prev_length >= s->good_match) {
-        chain_length >>= 2;
-    }
-    /* Do not look for matches beyond the end of the input. This is necessary
-     * to make deflate deterministic.
-     */
-    if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
-
-    Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
-
-    do {
-        Assert(cur_match < s->strstart, "no future");
-        match = s->window + cur_match;
-
-        /* Skip to next match if the match length cannot increase
-         * or if the match length is less than 2.  Note that the checks below
-         * for insufficient lookahead only occur occasionally for performance
-         * reasons.  Therefore uninitialized memory will be accessed, and
-         * conditional jumps will be made that depend on those values.
-         * However the length of the match is limited to the lookahead, so
-         * the output of deflate is not affected by the uninitialized values.
-         */
-#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
-        /* This code assumes sizeof(unsigned short) == 2. Do not use
-         * UNALIGNED_OK if your compiler uses a different size.
-         */
-        if (*(ushf*)(match+best_len-1) != scan_end ||
-            *(ushf*)match != scan_start) continue;
-
-        /* It is not necessary to compare scan[2] and match[2] since they are
-         * always equal when the other bytes match, given that the hash keys
-         * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
-         * strstart+3, +5, ... up to strstart+257. We check for insufficient
-         * lookahead only every 4th comparison; the 128th check will be made
-         * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
-         * necessary to put more guard bytes at the end of the window, or
-         * to check more often for insufficient lookahead.
-         */
-        Assert(scan[2] == match[2], "scan[2]?");
-        scan++, match++;
-        do {
-        } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
-                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
-                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
-                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
-                 scan < strend);
-        /* The funny "do {}" generates better code on most compilers */
-
-        /* Here, scan <= window+strstart+257 */
-        Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
-        if (*scan == *match) scan++;
-
-        len = (MAX_MATCH - 1) - (int)(strend-scan);
-        scan = strend - (MAX_MATCH-1);
-
-#else /* UNALIGNED_OK */
-
-        if (match[best_len]   != scan_end  ||
-            match[best_len-1] != scan_end1 ||
-            *match            != *scan     ||
-            *++match          != scan[1])      continue;
-
-        /* The check at best_len-1 can be removed because it will be made
-         * again later. (This heuristic is not always a win.)
-         * It is not necessary to compare scan[2] and match[2] since they
-         * are always equal when the other bytes match, given that
-         * the hash keys are equal and that HASH_BITS >= 8.
-         */
-        scan += 2, match++;
-        Assert(*scan == *match, "match[2]?");
-
-        /* We check for insufficient lookahead only every 8th comparison;
-         * the 256th check will be made at strstart+258.
-         */
-        do {
-        } while (*++scan == *++match && *++scan == *++match &&
-                 *++scan == *++match && *++scan == *++match &&
-                 *++scan == *++match && *++scan == *++match &&
-                 *++scan == *++match && *++scan == *++match &&
-                 scan < strend);
-
-        Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
-
-        len = MAX_MATCH - (int)(strend - scan);
-        scan = strend - MAX_MATCH;
-
-#endif /* UNALIGNED_OK */
-
-        if (len > best_len) {
-            s->match_start = cur_match;
-            best_len = len;
-            if (len >= nice_match) break;
-#ifdef UNALIGNED_OK
-            scan_end = *(ushf*)(scan+best_len-1);
-#else
-            scan_end1  = scan[best_len-1];
-            scan_end   = scan[best_len];
-#endif
-        }
-    } while ((cur_match = prev[cur_match & wmask]) > limit
-             && --chain_length != 0);
-
-    if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
-    return s->lookahead;
-}
-#endif /* ASMV */
-#endif /* FASTEST */
-
-/* ---------------------------------------------------------------------------
- * Optimized version for level == 1 or strategy == Z_RLE only
- */
-local uInt longest_match_fast(s, cur_match)
-    deflate_state *s;
-    IPos cur_match;                             /* current match */
-{
-    register Bytef *scan = s->window + s->strstart; /* current string */
-    register Bytef *match;                       /* matched string */
-    register int len;                           /* length of current match */
-    register Bytef *strend = s->window + s->strstart + MAX_MATCH;
-
-    /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
-     * It is easy to get rid of this optimization if necessary.
-     */
-    Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
-
-    Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
-
-    Assert(cur_match < s->strstart, "no future");
-
-    match = s->window + cur_match;
-
-    /* Return failure if the match length is less than 2:
-     */
-    if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1;
-
-    /* The check at best_len-1 can be removed because it will be made
-     * again later. (This heuristic is not always a win.)
-     * It is not necessary to compare scan[2] and match[2] since they
-     * are always equal when the other bytes match, given that
-     * the hash keys are equal and that HASH_BITS >= 8.
-     */
-    scan += 2, match += 2;
-    Assert(*scan == *match, "match[2]?");
-
-    /* We check for insufficient lookahead only every 8th comparison;
-     * the 256th check will be made at strstart+258.
-     */
-    do {
-    } while (*++scan == *++match && *++scan == *++match &&
-             *++scan == *++match && *++scan == *++match &&
-             *++scan == *++match && *++scan == *++match &&
-             *++scan == *++match && *++scan == *++match &&
-             scan < strend);
-
-    Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
-
-    len = MAX_MATCH - (int)(strend - scan);
-
-    if (len < MIN_MATCH) return MIN_MATCH - 1;
-
-    s->match_start = cur_match;
-    return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead;
-}
-
-#ifdef DEBUG
-/* ===========================================================================
- * Check that the match at match_start is indeed a match.
- */
-local void check_match(s, start, match, length)
-    deflate_state *s;
-    IPos start, match;
-    int length;
-{
-    /* check that the match is indeed a match */
-    if (zmemcmp(s->window + match,
-                s->window + start, length) != EQUAL) {
-        fprintf(stderr, " start %u, match %u, length %d\n",
-                start, match, length);
-        do {
-            fprintf(stderr, "%c%c", s->window[match++], s->window[start++]);
-        } while (--length != 0);
-        z_error("invalid match");
-    }
-    if (z_verbose > 1) {
-        fprintf(stderr,"\\[%d,%d]", start-match, length);
-        do { putc(s->window[start++], stderr); } while (--length != 0);
-    }
-}
-#else
-#  define check_match(s, start, match, length)
-#endif /* DEBUG */
-
-/* ===========================================================================
- * Fill the window when the lookahead becomes insufficient.
- * Updates strstart and lookahead.
- *
- * IN assertion: lookahead < MIN_LOOKAHEAD
- * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
- *    At least one byte has been read, or avail_in == 0; reads are
- *    performed for at least two bytes (required for the zip translate_eol
- *    option -- not supported here).
- */
-local void fill_window(s)
-    deflate_state *s;
-{
-    register unsigned n, m;
-    register Posf *p;
-    unsigned more;    /* Amount of free space at the end of the window. */
-    uInt wsize = s->w_size;
-
-    do {
-        more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
-
-        /* Deal with !@#$% 64K limit: */
-        if (sizeof(int) <= 2) {
-            if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
-                more = wsize;
-
-            } else if (more == (unsigned)(-1)) {
-                /* Very unlikely, but possible on 16 bit machine if
-                 * strstart == 0 && lookahead == 1 (input done a byte at time)
-                 */
-                more--;
-            }
-        }
-
-        /* If the window is almost full and there is insufficient lookahead,
-         * move the upper half to the lower one to make room in the upper half.
-         */
-        if (s->strstart >= wsize+MAX_DIST(s)) {
-
-            zmemcpy(s->window, s->window+wsize, (unsigned)wsize);
-            s->match_start -= wsize;
-            s->strstart    -= wsize; /* we now have strstart >= MAX_DIST */
-            s->block_start -= (long) wsize;
-
-            /* Slide the hash table (could be avoided with 32 bit values
-               at the expense of memory usage). We slide even when level == 0
-               to keep the hash table consistent if we switch back to level > 0
-               later. (Using level 0 permanently is not an optimal usage of
-               zlib, so we don't care about this pathological case.)
-             */
-            /* %%% avoid this when Z_RLE */
-            n = s->hash_size;
-            p = &s->head[n];
-            do {
-                m = *--p;
-                *p = (Pos)(m >= wsize ? m-wsize : NIL);
-            } while (--n);
-
-            n = wsize;
-#ifndef FASTEST
-            p = &s->prev[n];
-            do {
-                m = *--p;
-                *p = (Pos)(m >= wsize ? m-wsize : NIL);
-                /* If n is not on any hash chain, prev[n] is garbage but
-                 * its value will never be used.
-                 */
-            } while (--n);
-#endif
-            more += wsize;
-        }
-        if (s->strm->avail_in == 0) return;
-
-        /* If there was no sliding:
-         *    strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
-         *    more == window_size - lookahead - strstart
-         * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
-         * => more >= window_size - 2*WSIZE + 2
-         * In the BIG_MEM or MMAP case (not yet supported),
-         *   window_size == input_size + MIN_LOOKAHEAD  &&
-         *   strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
-         * Otherwise, window_size == 2*WSIZE so more >= 2.
-         * If there was sliding, more >= WSIZE. So in all cases, more >= 2.
-         */
-        Assert(more >= 2, "more < 2");
-
-        n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more);
-        s->lookahead += n;
-
-        /* Initialize the hash value now that we have some input: */
-        if (s->lookahead >= MIN_MATCH) {
-            s->ins_h = s->window[s->strstart];
-            UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
-#if MIN_MATCH != 3
-            Call UPDATE_HASH() MIN_MATCH-3 more times
-#endif
-        }
-        /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
-         * but this is not important since only literal bytes will be emitted.
-         */
-
-    } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);
-}
-
-/* ===========================================================================
- * Flush the current block, with given end-of-file flag.
- * IN assertion: strstart is set to the end of the current match.
- */
-#define FLUSH_BLOCK_ONLY(s, eof) { \
-   _tr_flush_block(s, (s->block_start >= 0L ? \
-                   (charf *)&s->window[(unsigned)s->block_start] : \
-                   (charf *)Z_NULL), \
-                (ulg)((long)s->strstart - s->block_start), \
-                (eof)); \
-   s->block_start = s->strstart; \
-   flush_pending(s->strm); \
-   Tracev((stderr,"[FLUSH]")); \
-}
-
-/* Same but force premature exit if necessary. */
-#define FLUSH_BLOCK(s, eof) { \
-   FLUSH_BLOCK_ONLY(s, eof); \
-   if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \
-}
-
-/* ===========================================================================
- * Copy without compression as much as possible from the input stream, return
- * the current block state.
- * This function does not insert new strings in the dictionary since
- * uncompressible data is probably not useful. This function is used
- * only for the level=0 compression option.
- * NOTE: this function should be optimized to avoid extra copying from
- * window to pending_buf.
- */
-local block_state deflate_stored(s, flush)
-    deflate_state *s;
-    int flush;
-{
-    /* Stored blocks are limited to 0xffff bytes, pending_buf is limited
-     * to pending_buf_size, and each stored block has a 5 byte header:
-     */
-    ulg max_block_size = 0xffff;
-    ulg max_start;
-
-    if (max_block_size > s->pending_buf_size - 5) {
-        max_block_size = s->pending_buf_size - 5;
-    }
-
-    /* Copy as much as possible from input to output: */
-    for (;;) {
-        /* Fill the window as much as possible: */
-        if (s->lookahead <= 1) {
-
-            Assert(s->strstart < s->w_size+MAX_DIST(s) ||
-                   s->block_start >= (long)s->w_size, "slide too late");
-
-            fill_window(s);
-            if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more;
-
-            if (s->lookahead == 0) break; /* flush the current block */
-        }
-        Assert(s->block_start >= 0L, "block gone");
-
-        s->strstart += s->lookahead;
-        s->lookahead = 0;
-
-        /* Emit a stored block if pending_buf will be full: */
-        max_start = s->block_start + max_block_size;
-        if (s->strstart == 0 || (ulg)s->strstart >= max_start) {
-            /* strstart == 0 is possible when wraparound on 16-bit machine */
-            s->lookahead = (uInt)(s->strstart - max_start);
-            s->strstart = (uInt)max_start;
-            FLUSH_BLOCK(s, 0);
-        }
-        /* Flush if we may have to slide, otherwise block_start may become
-         * negative and the data will be gone:
-         */
-        if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) {
-            FLUSH_BLOCK(s, 0);
-        }
-    }
-    FLUSH_BLOCK(s, flush == Z_FINISH);
-    return flush == Z_FINISH ? finish_done : block_done;
-}
-
-/* ===========================================================================
- * Compress as much as possible from the input stream, return the current
- * block state.
- * This function does not perform lazy evaluation of matches and inserts
- * new strings in the dictionary only for unmatched strings or for short
- * matches. It is used only for the fast compression options.
- */
-local block_state deflate_fast(s, flush)
-    deflate_state *s;
-    int flush;
-{
-    IPos hash_head = NIL; /* head of the hash chain */
-    int bflush;           /* set if current block must be flushed */
-
-    for (;;) {
-        /* Make sure that we always have enough lookahead, except
-         * at the end of the input file. We need MAX_MATCH bytes
-         * for the next match, plus MIN_MATCH bytes to insert the
-         * string following the next match.
-         */
-        if (s->lookahead < MIN_LOOKAHEAD) {
-            fill_window(s);
-            if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
-                return need_more;
-            }
-            if (s->lookahead == 0) break; /* flush the current block */
-        }
-
-        /* Insert the string window[strstart .. strstart+2] in the
-         * dictionary, and set hash_head to the head of the hash chain:
-         */
-        if (s->lookahead >= MIN_MATCH) {
-            INSERT_STRING(s, s->strstart, hash_head);
-        }
-
-        /* Find the longest match, discarding those <= prev_length.
-         * At this point we have always match_length < MIN_MATCH
-         */
-        if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) {
-            /* To simplify the code, we prevent matches with the string
-             * of window index 0 (in particular we have to avoid a match
-             * of the string with itself at the start of the input file).
-             */
-#ifdef FASTEST
-            if ((s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) ||
-                (s->strategy == Z_RLE && s->strstart - hash_head == 1)) {
-                s->match_length = longest_match_fast (s, hash_head);
-            }
-#else
-            if (s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) {
-                s->match_length = longest_match (s, hash_head);
-            } else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) {
-                s->match_length = longest_match_fast (s, hash_head);
-            }
-#endif
-            /* longest_match() or longest_match_fast() sets match_start */
-        }
-        if (s->match_length >= MIN_MATCH) {
-            check_match(s, s->strstart, s->match_start, s->match_length);
-
-            _tr_tally_dist(s, s->strstart - s->match_start,
-                           s->match_length - MIN_MATCH, bflush);
-
-            s->lookahead -= s->match_length;
-
-            /* Insert new strings in the hash table only if the match length
-             * is not too large. This saves time but degrades compression.
-             */
-#ifndef FASTEST
-            if (s->match_length <= s->max_insert_length &&
-                s->lookahead >= MIN_MATCH) {
-                s->match_length--; /* string at strstart already in table */
-                do {
-                    s->strstart++;
-                    INSERT_STRING(s, s->strstart, hash_head);
-                    /* strstart never exceeds WSIZE-MAX_MATCH, so there are
-                     * always MIN_MATCH bytes ahead.
-                     */
-                } while (--s->match_length != 0);
-                s->strstart++;
-            } else
-#endif
-            {
-                s->strstart += s->match_length;
-                s->match_length = 0;
-                s->ins_h = s->window[s->strstart];
-                UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
-#if MIN_MATCH != 3
-                Call UPDATE_HASH() MIN_MATCH-3 more times
-#endif
-                /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not
-                 * matter since it will be recomputed at next deflate call.
-                 */
-            }
-        } else {
-            /* No match, output a literal byte */
-            Tracevv((stderr,"%c", s->window[s->strstart]));
-            _tr_tally_lit (s, s->window[s->strstart], bflush);
-            s->lookahead--;
-            s->strstart++;
-        }
-        if (bflush) FLUSH_BLOCK(s, 0);
-    }
-    FLUSH_BLOCK(s, flush == Z_FINISH);
-    return flush == Z_FINISH ? finish_done : block_done;
-}
-
-#ifndef FASTEST
-/* ===========================================================================
- * Same as above, but achieves better compression. We use a lazy
- * evaluation for matches: a match is finally adopted only if there is
- * no better match at the next window position.
- */
-local block_state deflate_slow(s, flush)
-    deflate_state *s;
-    int flush;
-{
-    IPos hash_head = NIL;    /* head of hash chain */
-    int bflush;              /* set if current block must be flushed */
-
-    /* Process the input block. */
-    for (;;) {
-        /* Make sure that we always have enough lookahead, except
-         * at the end of the input file. We need MAX_MATCH bytes
-         * for the next match, plus MIN_MATCH bytes to insert the
-         * string following the next match.
-         */
-        if (s->lookahead < MIN_LOOKAHEAD) {
-            fill_window(s);
-            if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
-                return need_more;
-            }
-            if (s->lookahead == 0) break; /* flush the current block */
-        }
-
-        /* Insert the string window[strstart .. strstart+2] in the
-         * dictionary, and set hash_head to the head of the hash chain:
-         */
-        if (s->lookahead >= MIN_MATCH) {
-            INSERT_STRING(s, s->strstart, hash_head);
-        }
-
-        /* Find the longest match, discarding those <= prev_length.
-         */
-        s->prev_length = s->match_length, s->prev_match = s->match_start;
-        s->match_length = MIN_MATCH-1;
-
-        if (hash_head != NIL && s->prev_length < s->max_lazy_match &&
-            s->strstart - hash_head <= MAX_DIST(s)) {
-            /* To simplify the code, we prevent matches with the string
-             * of window index 0 (in particular we have to avoid a match
-             * of the string with itself at the start of the input file).
-             */
-            if (s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) {
-                s->match_length = longest_match (s, hash_head);
-            } else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) {
-                s->match_length = longest_match_fast (s, hash_head);
-            }
-            /* longest_match() or longest_match_fast() sets match_start */
-
-            if (s->match_length <= 5 && (s->strategy == Z_FILTERED
-#if TOO_FAR <= 32767
-                || (s->match_length == MIN_MATCH &&
-                    s->strstart - s->match_start > TOO_FAR)
-#endif
-                )) {
-
-                /* If prev_match is also MIN_MATCH, match_start is garbage
-                 * but we will ignore the current match anyway.
-                 */
-                s->match_length = MIN_MATCH-1;
-            }
-        }
-        /* If there was a match at the previous step and the current
-         * match is not better, output the previous match:
-         */
-        if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) {
-            uInt max_insert = s->strstart + s->lookahead - MIN_MATCH;
-            /* Do not insert strings in hash table beyond this. */
-
-            check_match(s, s->strstart-1, s->prev_match, s->prev_length);
-
-            _tr_tally_dist(s, s->strstart -1 - s->prev_match,
-                           s->prev_length - MIN_MATCH, bflush);
-
-            /* Insert in hash table all strings up to the end of the match.
-             * strstart-1 and strstart are already inserted. If there is not
-             * enough lookahead, the last two strings are not inserted in
-             * the hash table.
-             */
-            s->lookahead -= s->prev_length-1;
-            s->prev_length -= 2;
-            do {
-                if (++s->strstart <= max_insert) {
-                    INSERT_STRING(s, s->strstart, hash_head);
-                }
-            } while (--s->prev_length != 0);
-            s->match_available = 0;
-            s->match_length = MIN_MATCH-1;
-            s->strstart++;
-
-            if (bflush) FLUSH_BLOCK(s, 0);
-
-        } else if (s->match_available) {
-            /* If there was no match at the previous position, output a
-             * single literal. If there was a match but the current match
-             * is longer, truncate the previous match to a single literal.
-             */
-            Tracevv((stderr,"%c", s->window[s->strstart-1]));
-            _tr_tally_lit(s, s->window[s->strstart-1], bflush);
-            if (bflush) {
-                FLUSH_BLOCK_ONLY(s, 0);
-            }
-            s->strstart++;
-            s->lookahead--;
-            if (s->strm->avail_out == 0) return need_more;
-        } else {
-            /* There is no previous match to compare with, wait for
-             * the next step to decide.
-             */
-            s->match_available = 1;
-            s->strstart++;
-            s->lookahead--;
-        }
-    }
-    Assert (flush != Z_NO_FLUSH, "no flush?");
-    if (s->match_available) {
-        Tracevv((stderr,"%c", s->window[s->strstart-1]));
-        _tr_tally_lit(s, s->window[s->strstart-1], bflush);
-        s->match_available = 0;
-    }
-    FLUSH_BLOCK(s, flush == Z_FINISH);
-    return flush == Z_FINISH ? finish_done : block_done;
-}
-#endif /* FASTEST */
-
-#if 0
-/* ===========================================================================
- * For Z_RLE, simply look for runs of bytes, generate matches only of distance
- * one.  Do not maintain a hash table.  (It will be regenerated if this run of
- * deflate switches away from Z_RLE.)
- */
-local block_state deflate_rle(s, flush)
-    deflate_state *s;
-    int flush;
-{
-    int bflush;         /* set if current block must be flushed */
-    uInt run;           /* length of run */
-    uInt max;           /* maximum length of run */
-    uInt prev;          /* byte at distance one to match */
-    Bytef *scan;        /* scan for end of run */
-
-    for (;;) {
-        /* Make sure that we always have enough lookahead, except
-         * at the end of the input file. We need MAX_MATCH bytes
-         * for the longest encodable run.
-         */
-        if (s->lookahead < MAX_MATCH) {
-            fill_window(s);
-            if (s->lookahead < MAX_MATCH && flush == Z_NO_FLUSH) {
-                return need_more;
-            }
-            if (s->lookahead == 0) break; /* flush the current block */
-        }
-
-        /* See how many times the previous byte repeats */
-        run = 0;
-        if (s->strstart > 0) {      /* if there is a previous byte, that is */
-            max = s->lookahead < MAX_MATCH ? s->lookahead : MAX_MATCH;
-            scan = s->window + s->strstart - 1;
-            prev = *scan++;
-            do {
-                if (*scan++ != prev)
-                    break;
-            } while (++run < max);
-        }
-
-        /* Emit match if have run of MIN_MATCH or longer, else emit literal */
-        if (run >= MIN_MATCH) {
-            check_match(s, s->strstart, s->strstart - 1, run);
-            _tr_tally_dist(s, 1, run - MIN_MATCH, bflush);
-            s->lookahead -= run;
-            s->strstart += run;
-        } else {
-            /* No match, output a literal byte */
-            Tracevv((stderr,"%c", s->window[s->strstart]));
-            _tr_tally_lit (s, s->window[s->strstart], bflush);
-            s->lookahead--;
-            s->strstart++;
-        }
-        if (bflush) FLUSH_BLOCK(s, 0);
-    }
-    FLUSH_BLOCK(s, flush == Z_FINISH);
-    return flush == Z_FINISH ? finish_done : block_done;
-}
-#endif
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/deflate.h b/components/dfs/filesystems/jffs2/cyg/compress/src/deflate.h
deleted file mode 100644
index 05a5ab3a2c..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/deflate.h
+++ /dev/null
@@ -1,331 +0,0 @@
-/* deflate.h -- internal compression state
- * Copyright (C) 1995-2004 Jean-loup Gailly
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* @(#) $Id$ */
-
-#ifndef DEFLATE_H
-#define DEFLATE_H
-
-#include "zutil.h"
-
-/* define NO_GZIP when compiling if you want to disable gzip header and
-   trailer creation by deflate().  NO_GZIP would be used to avoid linking in
-   the crc code when it is not needed.  For shared libraries, gzip encoding
-   should be left enabled. */
-#ifndef NO_GZIP
-#  define GZIP
-#endif
-
-/* ===========================================================================
- * Internal compression state.
- */
-
-#define LENGTH_CODES 29
-/* number of length codes, not counting the special END_BLOCK code */
-
-#define LITERALS  256
-/* number of literal bytes 0..255 */
-
-#define L_CODES (LITERALS+1+LENGTH_CODES)
-/* number of Literal or Length codes, including the END_BLOCK code */
-
-#define D_CODES   30
-/* number of distance codes */
-
-#define BL_CODES  19
-/* number of codes used to transfer the bit lengths */
-
-#define HEAP_SIZE (2*L_CODES+1)
-/* maximum heap size */
-
-#define MAX_BITS 15
-/* All codes must not exceed MAX_BITS bits */
-
-#define INIT_STATE    42
-#define EXTRA_STATE   69
-#define NAME_STATE    73
-#define COMMENT_STATE 91
-#define HCRC_STATE   103
-#define BUSY_STATE   113
-#define FINISH_STATE 666
-/* Stream status */
-
-
-/* Data structure describing a single value and its code string. */
-typedef struct ct_data_s {
-    union {
-        ush  freq;       /* frequency count */
-        ush  code;       /* bit string */
-    } fc;
-    union {
-        ush  dad;        /* father node in Huffman tree */
-        ush  len;        /* length of bit string */
-    } dl;
-} FAR ct_data;
-
-#define Freq fc.freq
-#define Code fc.code
-#define Dad  dl.dad
-#define Len  dl.len
-
-typedef struct static_tree_desc_s  static_tree_desc;
-
-typedef struct tree_desc_s {
-    ct_data *dyn_tree;           /* the dynamic tree */
-    int     max_code;            /* largest code with non zero frequency */
-    static_tree_desc *stat_desc; /* the corresponding static tree */
-} FAR tree_desc;
-
-typedef ush Pos;
-typedef Pos FAR Posf;
-typedef unsigned IPos;
-
-/* A Pos is an index in the character window. We use short instead of int to
- * save space in the various tables. IPos is used only for parameter passing.
- */
-
-typedef struct internal_state {
-    z_streamp strm;      /* pointer back to this zlib stream */
-    int   status;        /* as the name implies */
-    Bytef *pending_buf;  /* output still pending */
-    ulg   pending_buf_size; /* size of pending_buf */
-    Bytef *pending_out;  /* next pending byte to output to the stream */
-    uInt   pending;      /* nb of bytes in the pending buffer */
-    int   wrap;          /* bit 0 true for zlib, bit 1 true for gzip */
-    gz_headerp  gzhead;  /* gzip header information to write */
-    uInt   gzindex;      /* where in extra, name, or comment */
-    Byte  method;        /* STORED (for zip only) or DEFLATED */
-    int   last_flush;    /* value of flush param for previous deflate call */
-
-                /* used by deflate.c: */
-
-    uInt  w_size;        /* LZ77 window size (32K by default) */
-    uInt  w_bits;        /* log2(w_size)  (8..16) */
-    uInt  w_mask;        /* w_size - 1 */
-
-    Bytef *window;
-    /* Sliding window. Input bytes are read into the second half of the window,
-     * and move to the first half later to keep a dictionary of at least wSize
-     * bytes. With this organization, matches are limited to a distance of
-     * wSize-MAX_MATCH bytes, but this ensures that IO is always
-     * performed with a length multiple of the block size. Also, it limits
-     * the window size to 64K, which is quite useful on MSDOS.
-     * To do: use the user input buffer as sliding window.
-     */
-
-    ulg window_size;
-    /* Actual size of window: 2*wSize, except when the user input buffer
-     * is directly used as sliding window.
-     */
-
-    Posf *prev;
-    /* Link to older string with same hash index. To limit the size of this
-     * array to 64K, this link is maintained only for the last 32K strings.
-     * An index in this array is thus a window index modulo 32K.
-     */
-
-    Posf *head; /* Heads of the hash chains or NIL. */
-
-    uInt  ins_h;          /* hash index of string to be inserted */
-    uInt  hash_size;      /* number of elements in hash table */
-    uInt  hash_bits;      /* log2(hash_size) */
-    uInt  hash_mask;      /* hash_size-1 */
-
-    uInt  hash_shift;
-    /* Number of bits by which ins_h must be shifted at each input
-     * step. It must be such that after MIN_MATCH steps, the oldest
-     * byte no longer takes part in the hash key, that is:
-     *   hash_shift * MIN_MATCH >= hash_bits
-     */
-
-    long block_start;
-    /* Window position at the beginning of the current output block. Gets
-     * negative when the window is moved backwards.
-     */
-
-    uInt match_length;           /* length of best match */
-    IPos prev_match;             /* previous match */
-    int match_available;         /* set if previous match exists */
-    uInt strstart;               /* start of string to insert */
-    uInt match_start;            /* start of matching string */
-    uInt lookahead;              /* number of valid bytes ahead in window */
-
-    uInt prev_length;
-    /* Length of the best match at previous step. Matches not greater than this
-     * are discarded. This is used in the lazy match evaluation.
-     */
-
-    uInt max_chain_length;
-    /* To speed up deflation, hash chains are never searched beyond this
-     * length.  A higher limit improves compression ratio but degrades the
-     * speed.
-     */
-
-    uInt max_lazy_match;
-    /* Attempt to find a better match only when the current match is strictly
-     * smaller than this value. This mechanism is used only for compression
-     * levels >= 4.
-     */
-#   define max_insert_length  max_lazy_match
-    /* Insert new strings in the hash table only if the match length is not
-     * greater than this length. This saves time but degrades compression.
-     * max_insert_length is used only for compression levels <= 3.
-     */
-
-    int level;    /* compression level (1..9) */
-    int strategy; /* favor or force Huffman coding*/
-
-    uInt good_match;
-    /* Use a faster search when the previous match is longer than this */
-
-    int nice_match; /* Stop searching when current match exceeds this */
-
-                /* used by trees.c: */
-    /* Didn't use ct_data typedef below to supress compiler warning */
-    struct ct_data_s dyn_ltree[HEAP_SIZE];   /* literal and length tree */
-    struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
-    struct ct_data_s bl_tree[2*BL_CODES+1];  /* Huffman tree for bit lengths */
-
-    struct tree_desc_s l_desc;               /* desc. for literal tree */
-    struct tree_desc_s d_desc;               /* desc. for distance tree */
-    struct tree_desc_s bl_desc;              /* desc. for bit length tree */
-
-    ush bl_count[MAX_BITS+1];
-    /* number of codes at each bit length for an optimal tree */
-
-    int heap[2*L_CODES+1];      /* heap used to build the Huffman trees */
-    int heap_len;               /* number of elements in the heap */
-    int heap_max;               /* element of largest frequency */
-    /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
-     * The same heap array is used to build all trees.
-     */
-
-    uch depth[2*L_CODES+1];
-    /* Depth of each subtree used as tie breaker for trees of equal frequency
-     */
-
-    uchf *l_buf;          /* buffer for literals or lengths */
-
-    uInt  lit_bufsize;
-    /* Size of match buffer for literals/lengths.  There are 4 reasons for
-     * limiting lit_bufsize to 64K:
-     *   - frequencies can be kept in 16 bit counters
-     *   - if compression is not successful for the first block, all input
-     *     data is still in the window so we can still emit a stored block even
-     *     when input comes from standard input.  (This can also be done for
-     *     all blocks if lit_bufsize is not greater than 32K.)
-     *   - if compression is not successful for a file smaller than 64K, we can
-     *     even emit a stored file instead of a stored block (saving 5 bytes).
-     *     This is applicable only for zip (not gzip or zlib).
-     *   - creating new Huffman trees less frequently may not provide fast
-     *     adaptation to changes in the input data statistics. (Take for
-     *     example a binary file with poorly compressible code followed by
-     *     a highly compressible string table.) Smaller buffer sizes give
-     *     fast adaptation but have of course the overhead of transmitting
-     *     trees more frequently.
-     *   - I can't count above 4
-     */
-
-    uInt last_lit;      /* running index in l_buf */
-
-    ushf *d_buf;
-    /* Buffer for distances. To simplify the code, d_buf and l_buf have
-     * the same number of elements. To use different lengths, an extra flag
-     * array would be necessary.
-     */
-
-    ulg opt_len;        /* bit length of current block with optimal trees */
-    ulg static_len;     /* bit length of current block with static trees */
-    uInt matches;       /* number of string matches in current block */
-    int last_eob_len;   /* bit length of EOB code for last block */
-
-#ifdef DEBUG
-    ulg compressed_len; /* total bit length of compressed file mod 2^32 */
-    ulg bits_sent;      /* bit length of compressed data sent mod 2^32 */
-#endif
-
-    ush bi_buf;
-    /* Output buffer. bits are inserted starting at the bottom (least
-     * significant bits).
-     */
-    int bi_valid;
-    /* Number of valid bits in bi_buf.  All bits above the last valid bit
-     * are always zero.
-     */
-
-} FAR deflate_state;
-
-/* Output a byte on the stream.
- * IN assertion: there is enough room in pending_buf.
- */
-#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);}
-
-
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
-/* Minimum amount of lookahead, except at the end of the input file.
- * See deflate.c for comments about the MIN_MATCH+1.
- */
-
-#define MAX_DIST(s)  ((s)->w_size-MIN_LOOKAHEAD)
-/* In order to simplify the code, particularly on 16 bit machines, match
- * distances are limited to MAX_DIST instead of WSIZE.
- */
-
-        /* in trees.c */
-void _tr_init         OF((deflate_state *s));
-int  _tr_tally        OF((deflate_state *s, unsigned dist, unsigned lc));
-void _tr_flush_block  OF((deflate_state *s, charf *buf, ulg stored_len,
-                          int eof));
-void _tr_align        OF((deflate_state *s));
-void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
-                          int eof));
-
-#define d_code(dist) \
-   ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
-/* Mapping from a distance to a distance code. dist is the distance - 1 and
- * must not have side effects. _dist_code[256] and _dist_code[257] are never
- * used.
- */
-
-#ifndef DEBUG
-/* Inline versions of _tr_tally for speed: */
-
-#if defined(GEN_TREES_H) || !defined(STDC)
-  extern uch _length_code[];
-  extern uch _dist_code[];
-#else
-  extern const uch _length_code[];
-  extern const uch _dist_code[];
-#endif
-
-# define _tr_tally_lit(s, c, flush) \
-  { uch cc = (c); \
-    s->d_buf[s->last_lit] = 0; \
-    s->l_buf[s->last_lit++] = cc; \
-    s->dyn_ltree[cc].Freq++; \
-    flush = (s->last_lit == s->lit_bufsize-1); \
-   }
-# define _tr_tally_dist(s, distance, length, flush) \
-  { uch len = (length); \
-    ush dist = (distance); \
-    s->d_buf[s->last_lit] = dist; \
-    s->l_buf[s->last_lit++] = len; \
-    dist--; \
-    s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
-    s->dyn_dtree[d_code(dist)].Freq++; \
-    flush = (s->last_lit == s->lit_bufsize-1); \
-  }
-#else
-# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c)
-# define _tr_tally_dist(s, distance, length, flush) \
-              flush = _tr_tally(s, distance, length)
-#endif
-
-#endif /* DEFLATE_H */
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/descrip.mms b/components/dfs/filesystems/jffs2/cyg/compress/src/descrip.mms
deleted file mode 100644
index 9d364598a2..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/descrip.mms
+++ /dev/null
@@ -1,48 +0,0 @@
-# descrip.mms: MMS description file for building zlib on VMS
-# written by Martin P.J. Zinser <m.zinser@gsi.de>
-
-cc_defs = 
-c_deb = 
-
-.ifdef __DECC__
-pref = /prefix=all
-.endif
-
-OBJS = adler32.obj, compress.obj, crc32.obj, gzio.obj, uncompr.obj,\
-       deflate.obj, trees.obj, zutil.obj, inflate.obj, infblock.obj,\
-       inftrees.obj, infcodes.obj, infutil.obj, inffast.obj
-
-CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
-
-all : example.exe minigzip.exe
-        @ write sys$output " Example applications available"
-libz.olb : libz.olb($(OBJS))
-	@ write sys$output " libz available"
-
-example.exe : example.obj libz.olb
-              link example,libz.olb/lib
-
-minigzip.exe : minigzip.obj libz.olb
-              link minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib
-
-clean : 
-	delete *.obj;*,libz.olb;*
-
-
-# Other dependencies.
-adler32.obj : zutil.h zlib.h zconf.h
-compress.obj : zlib.h zconf.h
-crc32.obj : zutil.h zlib.h zconf.h
-deflate.obj : deflate.h zutil.h zlib.h zconf.h
-example.obj : zlib.h zconf.h
-gzio.obj : zutil.h zlib.h zconf.h
-infblock.obj : zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
-infcodes.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
-inffast.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
-inflate.obj : zutil.h zlib.h zconf.h infblock.h
-inftrees.obj : zutil.h zlib.h zconf.h inftrees.h
-infutil.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h
-minigzip.obj : zlib.h zconf.h
-trees.obj : deflate.h zutil.h zlib.h zconf.h
-uncompr.obj : zlib.h zconf.h
-zutil.obj : zutil.h zlib.h zconf.h
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/example.c b/components/dfs/filesystems/jffs2/cyg/compress/src/example.c
deleted file mode 100644
index 6c8a0ee763..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/example.c
+++ /dev/null
@@ -1,565 +0,0 @@
-/* example.c -- usage example of the zlib compression library
- * Copyright (C) 1995-2004 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#include <stdio.h>
-#include "zlib.h"
-
-#ifdef STDC
-#  include <string.h>
-#  include <stdlib.h>
-#endif
-
-#if defined(VMS) || defined(RISCOS)
-#  define TESTFILE "foo-gz"
-#else
-#  define TESTFILE "foo.gz"
-#endif
-
-#define CHECK_ERR(err, msg) { \
-    if (err != Z_OK) { \
-        fprintf(stderr, "%s error: %d\n", msg, err); \
-        exit(1); \
-    } \
-}
-
-const char hello[] = "hello, hello!";
-/* "hello world" would be more standard, but the repeated "hello"
- * stresses the compression code better, sorry...
- */
-
-const char dictionary[] = "hello";
-uLong dictId; /* Adler32 value of the dictionary */
-
-void test_compress      OF((Byte *compr, uLong comprLen,
-                            Byte *uncompr, uLong uncomprLen));
-void test_gzio          OF((const char *fname,
-                            Byte *uncompr, uLong uncomprLen));
-void test_deflate       OF((Byte *compr, uLong comprLen));
-void test_inflate       OF((Byte *compr, uLong comprLen,
-                            Byte *uncompr, uLong uncomprLen));
-void test_large_deflate OF((Byte *compr, uLong comprLen,
-                            Byte *uncompr, uLong uncomprLen));
-void test_large_inflate OF((Byte *compr, uLong comprLen,
-                            Byte *uncompr, uLong uncomprLen));
-void test_flush         OF((Byte *compr, uLong *comprLen));
-void test_sync          OF((Byte *compr, uLong comprLen,
-                            Byte *uncompr, uLong uncomprLen));
-void test_dict_deflate  OF((Byte *compr, uLong comprLen));
-void test_dict_inflate  OF((Byte *compr, uLong comprLen,
-                            Byte *uncompr, uLong uncomprLen));
-int  main               OF((int argc, char *argv[]));
-
-/* ===========================================================================
- * Test compress() and uncompress()
- */
-void test_compress(compr, comprLen, uncompr, uncomprLen)
-    Byte *compr, *uncompr;
-    uLong comprLen, uncomprLen;
-{
-    int err;
-    uLong len = (uLong)strlen(hello)+1;
-
-    err = compress(compr, &comprLen, (const Bytef*)hello, len);
-    CHECK_ERR(err, "compress");
-
-    strcpy((char*)uncompr, "garbage");
-
-    err = uncompress(uncompr, &uncomprLen, compr, comprLen);
-    CHECK_ERR(err, "uncompress");
-
-    if (strcmp((char*)uncompr, hello)) {
-        fprintf(stderr, "bad uncompress\n");
-        exit(1);
-    } else {
-        printf("uncompress(): %s\n", (char *)uncompr);
-    }
-}
-
-/* ===========================================================================
- * Test read/write of .gz files
- */
-void test_gzio(fname, uncompr, uncomprLen)
-    const char *fname; /* compressed file name */
-    Byte *uncompr;
-    uLong uncomprLen;
-{
-#ifdef NO_GZCOMPRESS
-    fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n");
-#else
-    int err;
-    int len = (int)strlen(hello)+1;
-    gzFile file;
-    z_off_t pos;
-
-    file = gzopen(fname, "wb");
-    if (file == NULL) {
-        fprintf(stderr, "gzopen error\n");
-        exit(1);
-    }
-    gzputc(file, 'h');
-    if (gzputs(file, "ello") != 4) {
-        fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
-        exit(1);
-    }
-    if (gzprintf(file, ", %s!", "hello") != 8) {
-        fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
-        exit(1);
-    }
-    gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
-    gzclose(file);
-
-    file = gzopen(fname, "rb");
-    if (file == NULL) {
-        fprintf(stderr, "gzopen error\n");
-        exit(1);
-    }
-    strcpy((char*)uncompr, "garbage");
-
-    if (gzread(file, uncompr, (unsigned)uncomprLen) != len) {
-        fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
-        exit(1);
-    }
-    if (strcmp((char*)uncompr, hello)) {
-        fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
-        exit(1);
-    } else {
-        printf("gzread(): %s\n", (char*)uncompr);
-    }
-
-    pos = gzseek(file, -8L, SEEK_CUR);
-    if (pos != 6 || gztell(file) != pos) {
-        fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
-                (long)pos, (long)gztell(file));
-        exit(1);
-    }
-
-    if (gzgetc(file) != ' ') {
-        fprintf(stderr, "gzgetc error\n");
-        exit(1);
-    }
-
-    if (gzungetc(' ', file) != ' ') {
-        fprintf(stderr, "gzungetc error\n");
-        exit(1);
-    }
-
-    gzgets(file, (char*)uncompr, (int)uncomprLen);
-    if (strlen((char*)uncompr) != 7) { /* " hello!" */
-        fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
-        exit(1);
-    }
-    if (strcmp((char*)uncompr, hello + 6)) {
-        fprintf(stderr, "bad gzgets after gzseek\n");
-        exit(1);
-    } else {
-        printf("gzgets() after gzseek: %s\n", (char*)uncompr);
-    }
-
-    gzclose(file);
-#endif
-}
-
-/* ===========================================================================
- * Test deflate() with small buffers
- */
-void test_deflate(compr, comprLen)
-    Byte *compr;
-    uLong comprLen;
-{
-    z_stream c_stream; /* compression stream */
-    int err;
-    uLong len = (uLong)strlen(hello)+1;
-
-    c_stream.zalloc = (alloc_func)0;
-    c_stream.zfree = (free_func)0;
-    c_stream.opaque = (voidpf)0;
-
-    err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
-    CHECK_ERR(err, "deflateInit");
-
-    c_stream.next_in  = (Bytef*)hello;
-    c_stream.next_out = compr;
-
-    while (c_stream.total_in != len && c_stream.total_out < comprLen) {
-        c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
-        err = deflate(&c_stream, Z_NO_FLUSH);
-        CHECK_ERR(err, "deflate");
-    }
-    /* Finish the stream, still forcing small buffers: */
-    for (;;) {
-        c_stream.avail_out = 1;
-        err = deflate(&c_stream, Z_FINISH);
-        if (err == Z_STREAM_END) break;
-        CHECK_ERR(err, "deflate");
-    }
-
-    err = deflateEnd(&c_stream);
-    CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with small buffers
- */
-void test_inflate(compr, comprLen, uncompr, uncomprLen)
-    Byte *compr, *uncompr;
-    uLong comprLen, uncomprLen;
-{
-    int err;
-    z_stream d_stream; /* decompression stream */
-
-    strcpy((char*)uncompr, "garbage");
-
-    d_stream.zalloc = (alloc_func)0;
-    d_stream.zfree = (free_func)0;
-    d_stream.opaque = (voidpf)0;
-
-    d_stream.next_in  = compr;
-    d_stream.avail_in = 0;
-    d_stream.next_out = uncompr;
-
-    err = inflateInit(&d_stream);
-    CHECK_ERR(err, "inflateInit");
-
-    while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
-        d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
-        err = inflate(&d_stream, Z_NO_FLUSH);
-        if (err == Z_STREAM_END) break;
-        CHECK_ERR(err, "inflate");
-    }
-
-    err = inflateEnd(&d_stream);
-    CHECK_ERR(err, "inflateEnd");
-
-    if (strcmp((char*)uncompr, hello)) {
-        fprintf(stderr, "bad inflate\n");
-        exit(1);
-    } else {
-        printf("inflate(): %s\n", (char *)uncompr);
-    }
-}
-
-/* ===========================================================================
- * Test deflate() with large buffers and dynamic change of compression level
- */
-void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
-    Byte *compr, *uncompr;
-    uLong comprLen, uncomprLen;
-{
-    z_stream c_stream; /* compression stream */
-    int err;
-
-    c_stream.zalloc = (alloc_func)0;
-    c_stream.zfree = (free_func)0;
-    c_stream.opaque = (voidpf)0;
-
-    err = deflateInit(&c_stream, Z_BEST_SPEED);
-    CHECK_ERR(err, "deflateInit");
-
-    c_stream.next_out = compr;
-    c_stream.avail_out = (uInt)comprLen;
-
-    /* At this point, uncompr is still mostly zeroes, so it should compress
-     * very well:
-     */
-    c_stream.next_in = uncompr;
-    c_stream.avail_in = (uInt)uncomprLen;
-    err = deflate(&c_stream, Z_NO_FLUSH);
-    CHECK_ERR(err, "deflate");
-    if (c_stream.avail_in != 0) {
-        fprintf(stderr, "deflate not greedy\n");
-        exit(1);
-    }
-
-    /* Feed in already compressed data and switch to no compression: */
-    deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
-    c_stream.next_in = compr;
-    c_stream.avail_in = (uInt)comprLen/2;
-    err = deflate(&c_stream, Z_NO_FLUSH);
-    CHECK_ERR(err, "deflate");
-
-    /* Switch back to compressing mode: */
-    deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
-    c_stream.next_in = uncompr;
-    c_stream.avail_in = (uInt)uncomprLen;
-    err = deflate(&c_stream, Z_NO_FLUSH);
-    CHECK_ERR(err, "deflate");
-
-    err = deflate(&c_stream, Z_FINISH);
-    if (err != Z_STREAM_END) {
-        fprintf(stderr, "deflate should report Z_STREAM_END\n");
-        exit(1);
-    }
-    err = deflateEnd(&c_stream);
-    CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with large buffers
- */
-void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
-    Byte *compr, *uncompr;
-    uLong comprLen, uncomprLen;
-{
-    int err;
-    z_stream d_stream; /* decompression stream */
-
-    strcpy((char*)uncompr, "garbage");
-
-    d_stream.zalloc = (alloc_func)0;
-    d_stream.zfree = (free_func)0;
-    d_stream.opaque = (voidpf)0;
-
-    d_stream.next_in  = compr;
-    d_stream.avail_in = (uInt)comprLen;
-
-    err = inflateInit(&d_stream);
-    CHECK_ERR(err, "inflateInit");
-
-    for (;;) {
-        d_stream.next_out = uncompr;            /* discard the output */
-        d_stream.avail_out = (uInt)uncomprLen;
-        err = inflate(&d_stream, Z_NO_FLUSH);
-        if (err == Z_STREAM_END) break;
-        CHECK_ERR(err, "large inflate");
-    }
-
-    err = inflateEnd(&d_stream);
-    CHECK_ERR(err, "inflateEnd");
-
-    if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
-        fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
-        exit(1);
-    } else {
-        printf("large_inflate(): OK\n");
-    }
-}
-
-/* ===========================================================================
- * Test deflate() with full flush
- */
-void test_flush(compr, comprLen)
-    Byte *compr;
-    uLong *comprLen;
-{
-    z_stream c_stream; /* compression stream */
-    int err;
-    uInt len = (uInt)strlen(hello)+1;
-
-    c_stream.zalloc = (alloc_func)0;
-    c_stream.zfree = (free_func)0;
-    c_stream.opaque = (voidpf)0;
-
-    err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
-    CHECK_ERR(err, "deflateInit");
-
-    c_stream.next_in  = (Bytef*)hello;
-    c_stream.next_out = compr;
-    c_stream.avail_in = 3;
-    c_stream.avail_out = (uInt)*comprLen;
-    err = deflate(&c_stream, Z_FULL_FLUSH);
-    CHECK_ERR(err, "deflate");
-
-    compr[3]++; /* force an error in first compressed block */
-    c_stream.avail_in = len - 3;
-
-    err = deflate(&c_stream, Z_FINISH);
-    if (err != Z_STREAM_END) {
-        CHECK_ERR(err, "deflate");
-    }
-    err = deflateEnd(&c_stream);
-    CHECK_ERR(err, "deflateEnd");
-
-    *comprLen = c_stream.total_out;
-}
-
-/* ===========================================================================
- * Test inflateSync()
- */
-void test_sync(compr, comprLen, uncompr, uncomprLen)
-    Byte *compr, *uncompr;
-    uLong comprLen, uncomprLen;
-{
-    int err;
-    z_stream d_stream; /* decompression stream */
-
-    strcpy((char*)uncompr, "garbage");
-
-    d_stream.zalloc = (alloc_func)0;
-    d_stream.zfree = (free_func)0;
-    d_stream.opaque = (voidpf)0;
-
-    d_stream.next_in  = compr;
-    d_stream.avail_in = 2; /* just read the zlib header */
-
-    err = inflateInit(&d_stream);
-    CHECK_ERR(err, "inflateInit");
-
-    d_stream.next_out = uncompr;
-    d_stream.avail_out = (uInt)uncomprLen;
-
-    inflate(&d_stream, Z_NO_FLUSH);
-    CHECK_ERR(err, "inflate");
-
-    d_stream.avail_in = (uInt)comprLen-2;   /* read all compressed data */
-    err = inflateSync(&d_stream);           /* but skip the damaged part */
-    CHECK_ERR(err, "inflateSync");
-
-    err = inflate(&d_stream, Z_FINISH);
-    if (err != Z_DATA_ERROR) {
-        fprintf(stderr, "inflate should report DATA_ERROR\n");
-        /* Because of incorrect adler32 */
-        exit(1);
-    }
-    err = inflateEnd(&d_stream);
-    CHECK_ERR(err, "inflateEnd");
-
-    printf("after inflateSync(): hel%s\n", (char *)uncompr);
-}
-
-/* ===========================================================================
- * Test deflate() with preset dictionary
- */
-void test_dict_deflate(compr, comprLen)
-    Byte *compr;
-    uLong comprLen;
-{
-    z_stream c_stream; /* compression stream */
-    int err;
-
-    c_stream.zalloc = (alloc_func)0;
-    c_stream.zfree = (free_func)0;
-    c_stream.opaque = (voidpf)0;
-
-    err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
-    CHECK_ERR(err, "deflateInit");
-
-    err = deflateSetDictionary(&c_stream,
-                               (const Bytef*)dictionary, sizeof(dictionary));
-    CHECK_ERR(err, "deflateSetDictionary");
-
-    dictId = c_stream.adler;
-    c_stream.next_out = compr;
-    c_stream.avail_out = (uInt)comprLen;
-
-    c_stream.next_in = (Bytef*)hello;
-    c_stream.avail_in = (uInt)strlen(hello)+1;
-
-    err = deflate(&c_stream, Z_FINISH);
-    if (err != Z_STREAM_END) {
-        fprintf(stderr, "deflate should report Z_STREAM_END\n");
-        exit(1);
-    }
-    err = deflateEnd(&c_stream);
-    CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with a preset dictionary
- */
-void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
-    Byte *compr, *uncompr;
-    uLong comprLen, uncomprLen;
-{
-    int err;
-    z_stream d_stream; /* decompression stream */
-
-    strcpy((char*)uncompr, "garbage");
-
-    d_stream.zalloc = (alloc_func)0;
-    d_stream.zfree = (free_func)0;
-    d_stream.opaque = (voidpf)0;
-
-    d_stream.next_in  = compr;
-    d_stream.avail_in = (uInt)comprLen;
-
-    err = inflateInit(&d_stream);
-    CHECK_ERR(err, "inflateInit");
-
-    d_stream.next_out = uncompr;
-    d_stream.avail_out = (uInt)uncomprLen;
-
-    for (;;) {
-        err = inflate(&d_stream, Z_NO_FLUSH);
-        if (err == Z_STREAM_END) break;
-        if (err == Z_NEED_DICT) {
-            if (d_stream.adler != dictId) {
-                fprintf(stderr, "unexpected dictionary");
-                exit(1);
-            }
-            err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
-                                       sizeof(dictionary));
-        }
-        CHECK_ERR(err, "inflate with dict");
-    }
-
-    err = inflateEnd(&d_stream);
-    CHECK_ERR(err, "inflateEnd");
-
-    if (strcmp((char*)uncompr, hello)) {
-        fprintf(stderr, "bad inflate with dict\n");
-        exit(1);
-    } else {
-        printf("inflate with dictionary: %s\n", (char *)uncompr);
-    }
-}
-
-/* ===========================================================================
- * Usage:  example [output.gz  [input.gz]]
- */
-
-int main(argc, argv)
-    int argc;
-    char *argv[];
-{
-    Byte *compr, *uncompr;
-    uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */
-    uLong uncomprLen = comprLen;
-    static const char* myVersion = ZLIB_VERSION;
-
-    if (zlibVersion()[0] != myVersion[0]) {
-        fprintf(stderr, "incompatible zlib version\n");
-        exit(1);
-
-    } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) {
-        fprintf(stderr, "warning: different zlib version\n");
-    }
-
-    printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n",
-            ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags());
-
-    compr    = (Byte*)calloc((uInt)comprLen, 1);
-    uncompr  = (Byte*)calloc((uInt)uncomprLen, 1);
-    /* compr and uncompr are cleared to avoid reading uninitialized
-     * data and to ensure that uncompr compresses well.
-     */
-    if (compr == Z_NULL || uncompr == Z_NULL) {
-        printf("out of memory\n");
-        exit(1);
-    }
-    test_compress(compr, comprLen, uncompr, uncomprLen);
-
-    test_gzio((argc > 1 ? argv[1] : TESTFILE),
-              uncompr, uncomprLen);
-
-    test_deflate(compr, comprLen);
-    test_inflate(compr, comprLen, uncompr, uncomprLen);
-
-    test_large_deflate(compr, comprLen, uncompr, uncomprLen);
-    test_large_inflate(compr, comprLen, uncompr, uncomprLen);
-
-    test_flush(compr, &comprLen);
-    test_sync(compr, comprLen, uncompr, uncomprLen);
-    comprLen = uncomprLen;
-
-    test_dict_deflate(compr, comprLen);
-    test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
-
-    free(compr);
-    free(uncompr);
-
-    return 0;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/gzio.c b/components/dfs/filesystems/jffs2/cyg/compress/src/gzio.c
deleted file mode 100644
index 7e90f4928f..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/gzio.c
+++ /dev/null
@@ -1,1026 +0,0 @@
-/* gzio.c -- IO on .gz files
- * Copyright (C) 1995-2005 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Compile this file with -DNO_GZCOMPRESS to avoid the compression code.
- */
-
-/* @(#) $Id$ */
-
-#include <stdio.h>
-
-#include "zutil.h"
-
-#ifdef NO_DEFLATE       /* for compatibility with old definition */
-#  define NO_GZCOMPRESS
-#endif
-
-#ifndef NO_DUMMY_DECL
-struct internal_state {int dummy;}; /* for buggy compilers */
-#endif
-
-#ifndef Z_BUFSIZE
-#  ifdef MAXSEG_64K
-#    define Z_BUFSIZE 4096 /* minimize memory usage for 16-bit DOS */
-#  else
-#    define Z_BUFSIZE 16384
-#  endif
-#endif
-#ifndef Z_PRINTF_BUFSIZE
-#  define Z_PRINTF_BUFSIZE 4096
-#endif
-
-#ifdef __MVS__
-#  pragma map (fdopen , "\174\174FDOPEN")
-   FILE *fdopen(int, const char *);
-#endif
-
-#ifndef STDC
-extern voidp  malloc OF((uInt size));
-extern void   free   OF((voidpf ptr));
-#endif
-
-#define ALLOC(size) malloc(size)
-#define TRYFREE(p) {if (p) free(p);}
-
-static int const gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */
-
-/* gzip flag byte */
-#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */
-#define HEAD_CRC     0x02 /* bit 1 set: header CRC present */
-#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
-#define COMMENT      0x10 /* bit 4 set: file comment present */
-#define RESERVED     0xE0 /* bits 5..7: reserved */
-
-typedef struct gz_stream {
-    z_stream stream;
-    int      z_err;   /* error code for last stream operation */
-    int      z_eof;   /* set if end of input file */
-    FILE     *file;   /* .gz file */
-    Byte     *inbuf;  /* input buffer */
-    Byte     *outbuf; /* output buffer */
-    uLong    crc;     /* crc32 of uncompressed data */
-    char     *msg;    /* error message */
-    char     *path;   /* path name for debugging only */
-    int      transparent; /* 1 if input file is not a .gz file */
-    char     mode;    /* 'w' or 'r' */
-    z_off_t  start;   /* start of compressed data in file (header skipped) */
-    z_off_t  in;      /* bytes into deflate or inflate */
-    z_off_t  out;     /* bytes out of deflate or inflate */
-    int      back;    /* one character push-back */
-    int      last;    /* true if push-back is last character */
-} gz_stream;
-
-
-local gzFile gz_open      OF((const char *path, const char *mode, int  fd));
-local int do_flush        OF((gzFile file, int flush));
-local int    get_byte     OF((gz_stream *s));
-local void   check_header OF((gz_stream *s));
-local int    destroy      OF((gz_stream *s));
-local void   putLong      OF((FILE *file, uLong x));
-local uLong  getLong      OF((gz_stream *s));
-
-/* ===========================================================================
-     Opens a gzip (.gz) file for reading or writing. The mode parameter
-   is as in fopen ("rb" or "wb"). The file is given either by file descriptor
-   or path name (if fd == -1).
-     gz_open returns NULL if the file could not be opened or if there was
-   insufficient memory to allocate the (de)compression state; errno
-   can be checked to distinguish the two cases (if errno is zero, the
-   zlib error is Z_MEM_ERROR).
-*/
-local gzFile gz_open (path, mode, fd)
-    const char *path;
-    const char *mode;
-    int  fd;
-{
-    int err;
-    int level = Z_DEFAULT_COMPRESSION; /* compression level */
-    int strategy = Z_DEFAULT_STRATEGY; /* compression strategy */
-    char *p = (char*)mode;
-    gz_stream *s;
-    char fmode[80]; /* copy of mode, without the compression level */
-    char *m = fmode;
-
-    if (!path || !mode) return Z_NULL;
-
-    s = (gz_stream *)ALLOC(sizeof(gz_stream));
-    if (!s) return Z_NULL;
-
-    s->stream.zalloc = (alloc_func)0;
-    s->stream.zfree = (free_func)0;
-    s->stream.opaque = (voidpf)0;
-    s->stream.next_in = s->inbuf = Z_NULL;
-    s->stream.next_out = s->outbuf = Z_NULL;
-    s->stream.avail_in = s->stream.avail_out = 0;
-    s->file = NULL;
-    s->z_err = Z_OK;
-    s->z_eof = 0;
-    s->in = 0;
-    s->out = 0;
-    s->back = EOF;
-    s->crc = crc32(0L, Z_NULL, 0);
-    s->msg = NULL;
-    s->transparent = 0;
-
-    s->path = (char*)ALLOC(strlen(path)+1);
-    if (s->path == NULL) {
-        return destroy(s), (gzFile)Z_NULL;
-    }
-    strcpy(s->path, path); /* do this early for debugging */
-
-    s->mode = '\0';
-    do {
-        if (*p == 'r') s->mode = 'r';
-        if (*p == 'w' || *p == 'a') s->mode = 'w';
-        if (*p >= '0' && *p <= '9') {
-            level = *p - '0';
-        } else if (*p == 'f') {
-          strategy = Z_FILTERED;
-        } else if (*p == 'h') {
-          strategy = Z_HUFFMAN_ONLY;
-        } else if (*p == 'R') {
-          strategy = Z_RLE;
-        } else {
-            *m++ = *p; /* copy the mode */
-        }
-    } while (*p++ && m != fmode + sizeof(fmode));
-    if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL;
-
-    if (s->mode == 'w') {
-#ifdef NO_GZCOMPRESS
-        err = Z_STREAM_ERROR;
-#else
-        err = deflateInit2(&(s->stream), level,
-                           Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, strategy);
-        /* windowBits is passed < 0 to suppress zlib header */
-
-        s->stream.next_out = s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
-#endif
-        if (err != Z_OK || s->outbuf == Z_NULL) {
-            return destroy(s), (gzFile)Z_NULL;
-        }
-    } else {
-        s->stream.next_in  = s->inbuf = (Byte*)ALLOC(Z_BUFSIZE);
-
-        err = inflateInit2(&(s->stream), -MAX_WBITS);
-        /* windowBits is passed < 0 to tell that there is no zlib header.
-         * Note that in this case inflate *requires* an extra "dummy" byte
-         * after the compressed stream in order to complete decompression and
-         * return Z_STREAM_END. Here the gzip CRC32 ensures that 4 bytes are
-         * present after the compressed stream.
-         */
-        if (err != Z_OK || s->inbuf == Z_NULL) {
-            return destroy(s), (gzFile)Z_NULL;
-        }
-    }
-    s->stream.avail_out = Z_BUFSIZE;
-
-    errno = 0;
-    s->file = fd < 0 ? F_OPEN(path, fmode) : (FILE*)fdopen(fd, fmode);
-
-    if (s->file == NULL) {
-        return destroy(s), (gzFile)Z_NULL;
-    }
-    if (s->mode == 'w') {
-        /* Write a very simple .gz header:
-         */
-        fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1],
-             Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE);
-        s->start = 10L;
-        /* We use 10L instead of ftell(s->file) to because ftell causes an
-         * fflush on some systems. This version of the library doesn't use
-         * start anyway in write mode, so this initialization is not
-         * necessary.
-         */
-    } else {
-        check_header(s); /* skip the .gz header */
-        s->start = ftell(s->file) - s->stream.avail_in;
-    }
-
-    return (gzFile)s;
-}
-
-/* ===========================================================================
-     Opens a gzip (.gz) file for reading or writing.
-*/
-gzFile ZEXPORT gzopen (path, mode)
-    const char *path;
-    const char *mode;
-{
-    return gz_open (path, mode, -1);
-}
-
-/* ===========================================================================
-     Associate a gzFile with the file descriptor fd. fd is not dup'ed here
-   to mimic the behavio(u)r of fdopen.
-*/
-gzFile ZEXPORT gzdopen (fd, mode)
-    int fd;
-    const char *mode;
-{
-    char name[46];      /* allow for up to 128-bit integers */
-
-    if (fd < 0) return (gzFile)Z_NULL;
-    sprintf(name, "<fd:%d>", fd); /* for debugging */
-
-    return gz_open (name, mode, fd);
-}
-
-/* ===========================================================================
- * Update the compression level and strategy
- */
-int ZEXPORT gzsetparams (file, level, strategy)
-    gzFile file;
-    int level;
-    int strategy;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
-    /* Make room to allow flushing */
-    if (s->stream.avail_out == 0) {
-
-        s->stream.next_out = s->outbuf;
-        if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
-            s->z_err = Z_ERRNO;
-        }
-        s->stream.avail_out = Z_BUFSIZE;
-    }
-
-    return deflateParams (&(s->stream), level, strategy);
-}
-
-/* ===========================================================================
-     Read a byte from a gz_stream; update next_in and avail_in. Return EOF
-   for end of file.
-   IN assertion: the stream s has been sucessfully opened for reading.
-*/
-local int get_byte(s)
-    gz_stream *s;
-{
-    if (s->z_eof) return EOF;
-    if (s->stream.avail_in == 0) {
-        errno = 0;
-        s->stream.avail_in = (uInt)fread(s->inbuf, 1, Z_BUFSIZE, s->file);
-        if (s->stream.avail_in == 0) {
-            s->z_eof = 1;
-            if (ferror(s->file)) s->z_err = Z_ERRNO;
-            return EOF;
-        }
-        s->stream.next_in = s->inbuf;
-    }
-    s->stream.avail_in--;
-    return *(s->stream.next_in)++;
-}
-
-/* ===========================================================================
-      Check the gzip header of a gz_stream opened for reading. Set the stream
-    mode to transparent if the gzip magic header is not present; set s->err
-    to Z_DATA_ERROR if the magic header is present but the rest of the header
-    is incorrect.
-    IN assertion: the stream s has already been created sucessfully;
-       s->stream.avail_in is zero for the first time, but may be non-zero
-       for concatenated .gz files.
-*/
-local void check_header(s)
-    gz_stream *s;
-{
-    int method; /* method byte */
-    int flags;  /* flags byte */
-    uInt len;
-    int c;
-
-    /* Assure two bytes in the buffer so we can peek ahead -- handle case
-       where first byte of header is at the end of the buffer after the last
-       gzip segment */
-    len = s->stream.avail_in;
-    if (len < 2) {
-        if (len) s->inbuf[0] = s->stream.next_in[0];
-        errno = 0;
-        len = (uInt)fread(s->inbuf + len, 1, Z_BUFSIZE >> len, s->file);
-        if (len == 0 && ferror(s->file)) s->z_err = Z_ERRNO;
-        s->stream.avail_in += len;
-        s->stream.next_in = s->inbuf;
-        if (s->stream.avail_in < 2) {
-            s->transparent = s->stream.avail_in;
-            return;
-        }
-    }
-
-    /* Peek ahead to check the gzip magic header */
-    if (s->stream.next_in[0] != gz_magic[0] ||
-        s->stream.next_in[1] != gz_magic[1]) {
-        s->transparent = 1;
-        return;
-    }
-    s->stream.avail_in -= 2;
-    s->stream.next_in += 2;
-
-    /* Check the rest of the gzip header */
-    method = get_byte(s);
-    flags = get_byte(s);
-    if (method != Z_DEFLATED || (flags & RESERVED) != 0) {
-        s->z_err = Z_DATA_ERROR;
-        return;
-    }
-
-    /* Discard time, xflags and OS code: */
-    for (len = 0; len < 6; len++) (void)get_byte(s);
-
-    if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */
-        len  =  (uInt)get_byte(s);
-        len += ((uInt)get_byte(s))<<8;
-        /* len is garbage if EOF but the loop below will quit anyway */
-        while (len-- != 0 && get_byte(s) != EOF) ;
-    }
-    if ((flags & ORIG_NAME) != 0) { /* skip the original file name */
-        while ((c = get_byte(s)) != 0 && c != EOF) ;
-    }
-    if ((flags & COMMENT) != 0) {   /* skip the .gz file comment */
-        while ((c = get_byte(s)) != 0 && c != EOF) ;
-    }
-    if ((flags & HEAD_CRC) != 0) {  /* skip the header crc */
-        for (len = 0; len < 2; len++) (void)get_byte(s);
-    }
-    s->z_err = s->z_eof ? Z_DATA_ERROR : Z_OK;
-}
-
- /* ===========================================================================
- * Cleanup then free the given gz_stream. Return a zlib error code.
-   Try freeing in the reverse order of allocations.
- */
-local int destroy (s)
-    gz_stream *s;
-{
-    int err = Z_OK;
-
-    if (!s) return Z_STREAM_ERROR;
-
-    TRYFREE(s->msg);
-
-    if (s->stream.state != NULL) {
-        if (s->mode == 'w') {
-#ifdef NO_GZCOMPRESS
-            err = Z_STREAM_ERROR;
-#else
-            err = deflateEnd(&(s->stream));
-#endif
-        } else if (s->mode == 'r') {
-            err = inflateEnd(&(s->stream));
-        }
-    }
-    if (s->file != NULL && fclose(s->file)) {
-#ifdef ESPIPE
-        if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */
-#endif
-            err = Z_ERRNO;
-    }
-    if (s->z_err < 0) err = s->z_err;
-
-    TRYFREE(s->inbuf);
-    TRYFREE(s->outbuf);
-    TRYFREE(s->path);
-    TRYFREE(s);
-    return err;
-}
-
-/* ===========================================================================
-     Reads the given number of uncompressed bytes from the compressed file.
-   gzread returns the number of bytes actually read (0 for end of file).
-*/
-int ZEXPORT gzread (file, buf, len)
-    gzFile file;
-    voidp buf;
-    unsigned len;
-{
-    gz_stream *s = (gz_stream*)file;
-    Bytef *start = (Bytef*)buf; /* starting point for crc computation */
-    Byte  *next_out; /* == stream.next_out but not forced far (for MSDOS) */
-
-    if (s == NULL || s->mode != 'r') return Z_STREAM_ERROR;
-
-    if (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO) return -1;
-    if (s->z_err == Z_STREAM_END) return 0;  /* EOF */
-
-    next_out = (Byte*)buf;
-    s->stream.next_out = (Bytef*)buf;
-    s->stream.avail_out = len;
-
-    if (s->stream.avail_out && s->back != EOF) {
-        *next_out++ = s->back;
-        s->stream.next_out++;
-        s->stream.avail_out--;
-        s->back = EOF;
-        s->out++;
-        start++;
-        if (s->last) {
-            s->z_err = Z_STREAM_END;
-            return 1;
-        }
-    }
-
-    while (s->stream.avail_out != 0) {
-
-        if (s->transparent) {
-            /* Copy first the lookahead bytes: */
-            uInt n = s->stream.avail_in;
-            if (n > s->stream.avail_out) n = s->stream.avail_out;
-            if (n > 0) {
-                zmemcpy(s->stream.next_out, s->stream.next_in, n);
-                next_out += n;
-                s->stream.next_out = next_out;
-                s->stream.next_in   += n;
-                s->stream.avail_out -= n;
-                s->stream.avail_in  -= n;
-            }
-            if (s->stream.avail_out > 0) {
-                s->stream.avail_out -=
-                    (uInt)fread(next_out, 1, s->stream.avail_out, s->file);
-            }
-            len -= s->stream.avail_out;
-            s->in  += len;
-            s->out += len;
-            if (len == 0) s->z_eof = 1;
-            return (int)len;
-        }
-        if (s->stream.avail_in == 0 && !s->z_eof) {
-
-            errno = 0;
-            s->stream.avail_in = (uInt)fread(s->inbuf, 1, Z_BUFSIZE, s->file);
-            if (s->stream.avail_in == 0) {
-                s->z_eof = 1;
-                if (ferror(s->file)) {
-                    s->z_err = Z_ERRNO;
-                    break;
-                }
-            }
-            s->stream.next_in = s->inbuf;
-        }
-        s->in += s->stream.avail_in;
-        s->out += s->stream.avail_out;
-        s->z_err = inflate(&(s->stream), Z_NO_FLUSH);
-        s->in -= s->stream.avail_in;
-        s->out -= s->stream.avail_out;
-
-        if (s->z_err == Z_STREAM_END) {
-            /* Check CRC and original size */
-            s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
-            start = s->stream.next_out;
-
-            if (getLong(s) != s->crc) {
-                s->z_err = Z_DATA_ERROR;
-            } else {
-                (void)getLong(s);
-                /* The uncompressed length returned by above getlong() may be
-                 * different from s->out in case of concatenated .gz files.
-                 * Check for such files:
-                 */
-                check_header(s);
-                if (s->z_err == Z_OK) {
-                    inflateReset(&(s->stream));
-                    s->crc = crc32(0L, Z_NULL, 0);
-                }
-            }
-        }
-        if (s->z_err != Z_OK || s->z_eof) break;
-    }
-    s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
-
-    if (len == s->stream.avail_out &&
-        (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO))
-        return -1;
-    return (int)(len - s->stream.avail_out);
-}
-
-
-/* ===========================================================================
-      Reads one byte from the compressed file. gzgetc returns this byte
-   or -1 in case of end of file or error.
-*/
-int ZEXPORT gzgetc(file)
-    gzFile file;
-{
-    unsigned char c;
-
-    return gzread(file, &c, 1) == 1 ? c : -1;
-}
-
-
-/* ===========================================================================
-      Push one byte back onto the stream.
-*/
-int ZEXPORT gzungetc(c, file)
-    int c;
-    gzFile file;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL || s->mode != 'r' || c == EOF || s->back != EOF) return EOF;
-    s->back = c;
-    s->out--;
-    s->last = (s->z_err == Z_STREAM_END);
-    if (s->last) s->z_err = Z_OK;
-    s->z_eof = 0;
-    return c;
-}
-
-
-/* ===========================================================================
-      Reads bytes from the compressed file until len-1 characters are
-   read, or a newline character is read and transferred to buf, or an
-   end-of-file condition is encountered.  The string is then terminated
-   with a null character.
-      gzgets returns buf, or Z_NULL in case of error.
-
-      The current implementation is not optimized at all.
-*/
-char * ZEXPORT gzgets(file, buf, len)
-    gzFile file;
-    char *buf;
-    int len;
-{
-    char *b = buf;
-    if (buf == Z_NULL || len <= 0) return Z_NULL;
-
-    while (--len > 0 && gzread(file, buf, 1) == 1 && *buf++ != '\n') ;
-    *buf = '\0';
-    return b == buf && len > 0 ? Z_NULL : b;
-}
-
-
-#ifndef NO_GZCOMPRESS
-/* ===========================================================================
-     Writes the given number of uncompressed bytes into the compressed file.
-   gzwrite returns the number of bytes actually written (0 in case of error).
-*/
-int ZEXPORT gzwrite (file, buf, len)
-    gzFile file;
-    voidpc buf;
-    unsigned len;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
-    s->stream.next_in = (Bytef*)buf;
-    s->stream.avail_in = len;
-
-    while (s->stream.avail_in != 0) {
-
-        if (s->stream.avail_out == 0) {
-
-            s->stream.next_out = s->outbuf;
-            if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
-                s->z_err = Z_ERRNO;
-                break;
-            }
-            s->stream.avail_out = Z_BUFSIZE;
-        }
-        s->in += s->stream.avail_in;
-        s->out += s->stream.avail_out;
-        s->z_err = deflate(&(s->stream), Z_NO_FLUSH);
-        s->in -= s->stream.avail_in;
-        s->out -= s->stream.avail_out;
-        if (s->z_err != Z_OK) break;
-    }
-    s->crc = crc32(s->crc, (const Bytef *)buf, len);
-
-    return (int)(len - s->stream.avail_in);
-}
-
-
-/* ===========================================================================
-     Converts, formats, and writes the args to the compressed file under
-   control of the format string, as in fprintf. gzprintf returns the number of
-   uncompressed bytes actually written (0 in case of error).
-*/
-#ifdef STDC
-#include <stdarg.h>
-
-int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...)
-{
-    char buf[Z_PRINTF_BUFSIZE];
-    va_list va;
-    int len;
-
-    buf[sizeof(buf) - 1] = 0;
-    va_start(va, format);
-#ifdef NO_vsnprintf
-#  ifdef HAS_vsprintf_void
-    (void)vsprintf(buf, format, va);
-    va_end(va);
-    for (len = 0; len < sizeof(buf); len++)
-        if (buf[len] == 0) break;
-#  else
-    len = vsprintf(buf, format, va);
-    va_end(va);
-#  endif
-#else
-#  ifdef HAS_vsnprintf_void
-    (void)vsnprintf(buf, sizeof(buf), format, va);
-    va_end(va);
-    len = strlen(buf);
-#  else
-    len = vsnprintf(buf, sizeof(buf), format, va);
-    va_end(va);
-#  endif
-#endif
-    if (len <= 0 || len >= (int)sizeof(buf) || buf[sizeof(buf) - 1] != 0)
-        return 0;
-    return gzwrite(file, buf, (unsigned)len);
-}
-#else /* not ANSI C */
-
-int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
-                       a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
-    gzFile file;
-    const char *format;
-    int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
-        a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
-{
-    char buf[Z_PRINTF_BUFSIZE];
-    int len;
-
-    buf[sizeof(buf) - 1] = 0;
-#ifdef NO_snprintf
-#  ifdef HAS_sprintf_void
-    sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8,
-            a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
-    for (len = 0; len < sizeof(buf); len++)
-        if (buf[len] == 0) break;
-#  else
-    len = sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8,
-                a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
-#  endif
-#else
-#  ifdef HAS_snprintf_void
-    snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8,
-             a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
-    len = strlen(buf);
-#  else
-    len = snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8,
-                 a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
-#  endif
-#endif
-    if (len <= 0 || len >= sizeof(buf) || buf[sizeof(buf) - 1] != 0)
-        return 0;
-    return gzwrite(file, buf, len);
-}
-#endif
-
-/* ===========================================================================
-      Writes c, converted to an unsigned char, into the compressed file.
-   gzputc returns the value that was written, or -1 in case of error.
-*/
-int ZEXPORT gzputc(file, c)
-    gzFile file;
-    int c;
-{
-    unsigned char cc = (unsigned char) c; /* required for big endian systems */
-
-    return gzwrite(file, &cc, 1) == 1 ? (int)cc : -1;
-}
-
-
-/* ===========================================================================
-      Writes the given null-terminated string to the compressed file, excluding
-   the terminating null character.
-      gzputs returns the number of characters written, or -1 in case of error.
-*/
-int ZEXPORT gzputs(file, s)
-    gzFile file;
-    const char *s;
-{
-    return gzwrite(file, (char*)s, (unsigned)strlen(s));
-}
-
-
-/* ===========================================================================
-     Flushes all pending output into the compressed file. The parameter
-   flush is as in the deflate() function.
-*/
-local int do_flush (file, flush)
-    gzFile file;
-    int flush;
-{
-    uInt len;
-    int done = 0;
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
-    s->stream.avail_in = 0; /* should be zero already anyway */
-
-    for (;;) {
-        len = Z_BUFSIZE - s->stream.avail_out;
-
-        if (len != 0) {
-            if ((uInt)fwrite(s->outbuf, 1, len, s->file) != len) {
-                s->z_err = Z_ERRNO;
-                return Z_ERRNO;
-            }
-            s->stream.next_out = s->outbuf;
-            s->stream.avail_out = Z_BUFSIZE;
-        }
-        if (done) break;
-        s->out += s->stream.avail_out;
-        s->z_err = deflate(&(s->stream), flush);
-        s->out -= s->stream.avail_out;
-
-        /* Ignore the second of two consecutive flushes: */
-        if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK;
-
-        /* deflate has finished flushing only when it hasn't used up
-         * all the available space in the output buffer:
-         */
-        done = (s->stream.avail_out != 0 || s->z_err == Z_STREAM_END);
-
-        if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break;
-    }
-    return  s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
-}
-
-int ZEXPORT gzflush (file, flush)
-     gzFile file;
-     int flush;
-{
-    gz_stream *s = (gz_stream*)file;
-    int err = do_flush (file, flush);
-
-    if (err) return err;
-    fflush(s->file);
-    return  s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
-}
-#endif /* NO_GZCOMPRESS */
-
-/* ===========================================================================
-      Sets the starting position for the next gzread or gzwrite on the given
-   compressed file. The offset represents a number of bytes in the
-      gzseek returns the resulting offset location as measured in bytes from
-   the beginning of the uncompressed stream, or -1 in case of error.
-      SEEK_END is not implemented, returns error.
-      In this version of the library, gzseek can be extremely slow.
-*/
-z_off_t ZEXPORT gzseek (file, offset, whence)
-    gzFile file;
-    z_off_t offset;
-    int whence;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL || whence == SEEK_END ||
-        s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) {
-        return -1L;
-    }
-
-    if (s->mode == 'w') {
-#ifdef NO_GZCOMPRESS
-        return -1L;
-#else
-        if (whence == SEEK_SET) {
-            offset -= s->in;
-        }
-        if (offset < 0) return -1L;
-
-        /* At this point, offset is the number of zero bytes to write. */
-        if (s->inbuf == Z_NULL) {
-            s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */
-            if (s->inbuf == Z_NULL) return -1L;
-            zmemzero(s->inbuf, Z_BUFSIZE);
-        }
-        while (offset > 0)  {
-            uInt size = Z_BUFSIZE;
-            if (offset < Z_BUFSIZE) size = (uInt)offset;
-
-            size = gzwrite(file, s->inbuf, size);
-            if (size == 0) return -1L;
-
-            offset -= size;
-        }
-        return s->in;
-#endif
-    }
-    /* Rest of function is for reading only */
-
-    /* compute absolute position */
-    if (whence == SEEK_CUR) {
-        offset += s->out;
-    }
-    if (offset < 0) return -1L;
-
-    if (s->transparent) {
-        /* map to fseek */
-        s->back = EOF;
-        s->stream.avail_in = 0;
-        s->stream.next_in = s->inbuf;
-        if (fseek(s->file, offset, SEEK_SET) < 0) return -1L;
-
-        s->in = s->out = offset;
-        return offset;
-    }
-
-    /* For a negative seek, rewind and use positive seek */
-    if (offset >= s->out) {
-        offset -= s->out;
-    } else if (gzrewind(file) < 0) {
-        return -1L;
-    }
-    /* offset is now the number of bytes to skip. */
-
-    if (offset != 0 && s->outbuf == Z_NULL) {
-        s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
-        if (s->outbuf == Z_NULL) return -1L;
-    }
-    if (offset && s->back != EOF) {
-        s->back = EOF;
-        s->out++;
-        offset--;
-        if (s->last) s->z_err = Z_STREAM_END;
-    }
-    while (offset > 0)  {
-        int size = Z_BUFSIZE;
-        if (offset < Z_BUFSIZE) size = (int)offset;
-
-        size = gzread(file, s->outbuf, (uInt)size);
-        if (size <= 0) return -1L;
-        offset -= size;
-    }
-    return s->out;
-}
-
-/* ===========================================================================
-     Rewinds input file.
-*/
-int ZEXPORT gzrewind (file)
-    gzFile file;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL || s->mode != 'r') return -1;
-
-    s->z_err = Z_OK;
-    s->z_eof = 0;
-    s->back = EOF;
-    s->stream.avail_in = 0;
-    s->stream.next_in = s->inbuf;
-    s->crc = crc32(0L, Z_NULL, 0);
-    if (!s->transparent) (void)inflateReset(&s->stream);
-    s->in = 0;
-    s->out = 0;
-    return fseek(s->file, s->start, SEEK_SET);
-}
-
-/* ===========================================================================
-     Returns the starting position for the next gzread or gzwrite on the
-   given compressed file. This position represents a number of bytes in the
-   uncompressed data stream.
-*/
-z_off_t ZEXPORT gztell (file)
-    gzFile file;
-{
-    return gzseek(file, 0L, SEEK_CUR);
-}
-
-/* ===========================================================================
-     Returns 1 when EOF has previously been detected reading the given
-   input stream, otherwise zero.
-*/
-int ZEXPORT gzeof (file)
-    gzFile file;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    /* With concatenated compressed files that can have embedded
-     * crc trailers, z_eof is no longer the only/best indicator of EOF
-     * on a gz_stream. Handle end-of-stream error explicitly here.
-     */
-    if (s == NULL || s->mode != 'r') return 0;
-    if (s->z_eof) return 1;
-    return s->z_err == Z_STREAM_END;
-}
-
-/* ===========================================================================
-     Returns 1 if reading and doing so transparently, otherwise zero.
-*/
-int ZEXPORT gzdirect (file)
-    gzFile file;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL || s->mode != 'r') return 0;
-    return s->transparent;
-}
-
-/* ===========================================================================
-   Outputs a long in LSB order to the given file
-*/
-local void putLong (file, x)
-    FILE *file;
-    uLong x;
-{
-    int n;
-    for (n = 0; n < 4; n++) {
-        fputc((int)(x & 0xff), file);
-        x >>= 8;
-    }
-}
-
-/* ===========================================================================
-   Reads a long in LSB order from the given gz_stream. Sets z_err in case
-   of error.
-*/
-local uLong getLong (s)
-    gz_stream *s;
-{
-    uLong x = (uLong)get_byte(s);
-    int c;
-
-    x += ((uLong)get_byte(s))<<8;
-    x += ((uLong)get_byte(s))<<16;
-    c = get_byte(s);
-    if (c == EOF) s->z_err = Z_DATA_ERROR;
-    x += ((uLong)c)<<24;
-    return x;
-}
-
-/* ===========================================================================
-     Flushes all pending output if necessary, closes the compressed file
-   and deallocates all the (de)compression state.
-*/
-int ZEXPORT gzclose (file)
-    gzFile file;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL) return Z_STREAM_ERROR;
-
-    if (s->mode == 'w') {
-#ifdef NO_GZCOMPRESS
-        return Z_STREAM_ERROR;
-#else
-        if (do_flush (file, Z_FINISH) != Z_OK)
-            return destroy((gz_stream*)file);
-
-        putLong (s->file, s->crc);
-        putLong (s->file, (uLong)(s->in & 0xffffffff));
-#endif
-    }
-    return destroy((gz_stream*)file);
-}
-
-#ifdef STDC
-#  define zstrerror(errnum) strerror(errnum)
-#else
-#  define zstrerror(errnum) ""
-#endif
-
-/* ===========================================================================
-     Returns the error message for the last error which occurred on the
-   given compressed file. errnum is set to zlib error number. If an
-   error occurred in the file system and not in the compression library,
-   errnum is set to Z_ERRNO and the application may consult errno
-   to get the exact error code.
-*/
-const char * ZEXPORT gzerror (file, errnum)
-    gzFile file;
-    int *errnum;
-{
-    char *m;
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL) {
-        *errnum = Z_STREAM_ERROR;
-        return (const char*)ERR_MSG(Z_STREAM_ERROR);
-    }
-    *errnum = s->z_err;
-    if (*errnum == Z_OK) return (const char*)"";
-
-    m = (char*)(*errnum == Z_ERRNO ? zstrerror(errno) : s->stream.msg);
-
-    if (m == NULL || *m == '\0') m = (char*)ERR_MSG(s->z_err);
-
-    TRYFREE(s->msg);
-    s->msg = (char*)ALLOC(strlen(s->path) + strlen(m) + 3);
-    if (s->msg == Z_NULL) return (const char*)ERR_MSG(Z_MEM_ERROR);
-    strcpy(s->msg, s->path);
-    strcat(s->msg, ": ");
-    strcat(s->msg, m);
-    return (const char*)s->msg;
-}
-
-/* ===========================================================================
-     Clear the error and end-of-file flags, and do the same for the real file.
-*/
-void ZEXPORT gzclearerr (file)
-    gzFile file;
-{
-    gz_stream *s = (gz_stream*)file;
-
-    if (s == NULL) return;
-    if (s->z_err != Z_STREAM_END) s->z_err = Z_OK;
-    s->z_eof = 0;
-    clearerr(s->file);
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/infback.c b/components/dfs/filesystems/jffs2/cyg/compress/src/infback.c
deleted file mode 100644
index 455dbc9ee8..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/infback.c
+++ /dev/null
@@ -1,623 +0,0 @@
-/* infback.c -- inflate using a call-back interface
- * Copyright (C) 1995-2005 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
-   This code is largely copied from inflate.c.  Normally either infback.o or
-   inflate.o would be linked into an application--not both.  The interface
-   with inffast.c is retained so that optimized assembler-coded versions of
-   inflate_fast() can be used with either inflate.c or infback.c.
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-#include "inflate.h"
-#include "inffast.h"
-
-/* function prototypes */
-local void fixedtables OF((struct inflate_state FAR *state));
-
-/*
-   strm provides memory allocation functions in zalloc and zfree, or
-   Z_NULL to use the library memory allocation functions.
-
-   windowBits is in the range 8..15, and window is a user-supplied
-   window and output buffer that is 2**windowBits bytes.
- */
-int ZEXPORT inflateBackInit_(strm, windowBits, window, version, stream_size)
-z_streamp strm;
-int windowBits;
-unsigned char FAR *window;
-const char *version;
-int stream_size;
-{
-    struct inflate_state FAR *state;
-
-    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
-        stream_size != (int)(sizeof(z_stream)))
-        return Z_VERSION_ERROR;
-    if (strm == Z_NULL || window == Z_NULL ||
-        windowBits < 8 || windowBits > 15)
-        return Z_STREAM_ERROR;
-    strm->msg = Z_NULL;                 /* in case we return an error */
-    if (strm->zalloc == (alloc_func)0) {
-        strm->zalloc = zcalloc;
-        strm->opaque = (voidpf)0;
-    }
-    if (strm->zfree == (free_func)0) strm->zfree = zcfree;
-    state = (struct inflate_state FAR *)ZALLOC(strm, 1,
-                                               sizeof(struct inflate_state));
-    if (state == Z_NULL) return Z_MEM_ERROR;
-    Tracev((stderr, "inflate: allocated\n"));
-    strm->state = (struct internal_state FAR *)state;
-    state->dmax = 32768U;
-    state->wbits = windowBits;
-    state->wsize = 1U << windowBits;
-    state->window = window;
-    state->write = 0;
-    state->whave = 0;
-    return Z_OK;
-}
-
-/*
-   Return state with length and distance decoding tables and index sizes set to
-   fixed code decoding.  Normally this returns fixed tables from inffixed.h.
-   If BUILDFIXED is defined, then instead this routine builds the tables the
-   first time it's called, and returns those tables the first time and
-   thereafter.  This reduces the size of the code by about 2K bytes, in
-   exchange for a little execution time.  However, BUILDFIXED should not be
-   used for threaded applications, since the rewriting of the tables and virgin
-   may not be thread-safe.
- */
-local void fixedtables(state)
-struct inflate_state FAR *state;
-{
-#ifdef BUILDFIXED
-    static int virgin = 1;
-    static code *lenfix, *distfix;
-    static code fixed[544];
-
-    /* build fixed huffman tables if first call (may not be thread safe) */
-    if (virgin) {
-        unsigned sym, bits;
-        static code *next;
-
-        /* literal/length table */
-        sym = 0;
-        while (sym < 144) state->lens[sym++] = 8;
-        while (sym < 256) state->lens[sym++] = 9;
-        while (sym < 280) state->lens[sym++] = 7;
-        while (sym < 288) state->lens[sym++] = 8;
-        next = fixed;
-        lenfix = next;
-        bits = 9;
-        inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work);
-
-        /* distance table */
-        sym = 0;
-        while (sym < 32) state->lens[sym++] = 5;
-        distfix = next;
-        bits = 5;
-        inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work);
-
-        /* do this just once */
-        virgin = 0;
-    }
-#else /* !BUILDFIXED */
-#   include "inffixed.h"
-#endif /* BUILDFIXED */
-    state->lencode = lenfix;
-    state->lenbits = 9;
-    state->distcode = distfix;
-    state->distbits = 5;
-}
-
-/* Macros for inflateBack(): */
-
-/* Load returned state from inflate_fast() */
-#define LOAD() \
-    do { \
-        put = strm->next_out; \
-        left = strm->avail_out; \
-        next = strm->next_in; \
-        have = strm->avail_in; \
-        hold = state->hold; \
-        bits = state->bits; \
-    } while (0)
-
-/* Set state from registers for inflate_fast() */
-#define RESTORE() \
-    do { \
-        strm->next_out = put; \
-        strm->avail_out = left; \
-        strm->next_in = next; \
-        strm->avail_in = have; \
-        state->hold = hold; \
-        state->bits = bits; \
-    } while (0)
-
-/* Clear the input bit accumulator */
-#define INITBITS() \
-    do { \
-        hold = 0; \
-        bits = 0; \
-    } while (0)
-
-/* Assure that some input is available.  If input is requested, but denied,
-   then return a Z_BUF_ERROR from inflateBack(). */
-#define PULL() \
-    do { \
-        if (have == 0) { \
-            have = in(in_desc, &next); \
-            if (have == 0) { \
-                next = Z_NULL; \
-                ret = Z_BUF_ERROR; \
-                goto inf_leave; \
-            } \
-        } \
-    } while (0)
-
-/* Get a byte of input into the bit accumulator, or return from inflateBack()
-   with an error if there is no input available. */
-#define PULLBYTE() \
-    do { \
-        PULL(); \
-        have--; \
-        hold += (unsigned long)(*next++) << bits; \
-        bits += 8; \
-    } while (0)
-
-/* Assure that there are at least n bits in the bit accumulator.  If there is
-   not enough available input to do that, then return from inflateBack() with
-   an error. */
-#define NEEDBITS(n) \
-    do { \
-        while (bits < (unsigned)(n)) \
-            PULLBYTE(); \
-    } while (0)
-
-/* Return the low n bits of the bit accumulator (n < 16) */
-#define BITS(n) \
-    ((unsigned)hold & ((1U << (n)) - 1))
-
-/* Remove n bits from the bit accumulator */
-#define DROPBITS(n) \
-    do { \
-        hold >>= (n); \
-        bits -= (unsigned)(n); \
-    } while (0)
-
-/* Remove zero to seven bits as needed to go to a byte boundary */
-#define BYTEBITS() \
-    do { \
-        hold >>= bits & 7; \
-        bits -= bits & 7; \
-    } while (0)
-
-/* Assure that some output space is available, by writing out the window
-   if it's full.  If the write fails, return from inflateBack() with a
-   Z_BUF_ERROR. */
-#define ROOM() \
-    do { \
-        if (left == 0) { \
-            put = state->window; \
-            left = state->wsize; \
-            state->whave = left; \
-            if (out(out_desc, put, left)) { \
-                ret = Z_BUF_ERROR; \
-                goto inf_leave; \
-            } \
-        } \
-    } while (0)
-
-/*
-   strm provides the memory allocation functions and window buffer on input,
-   and provides information on the unused input on return.  For Z_DATA_ERROR
-   returns, strm will also provide an error message.
-
-   in() and out() are the call-back input and output functions.  When
-   inflateBack() needs more input, it calls in().  When inflateBack() has
-   filled the window with output, or when it completes with data in the
-   window, it calls out() to write out the data.  The application must not
-   change the provided input until in() is called again or inflateBack()
-   returns.  The application must not change the window/output buffer until
-   inflateBack() returns.
-
-   in() and out() are called with a descriptor parameter provided in the
-   inflateBack() call.  This parameter can be a structure that provides the
-   information required to do the read or write, as well as accumulated
-   information on the input and output such as totals and check values.
-
-   in() should return zero on failure.  out() should return non-zero on
-   failure.  If either in() or out() fails, than inflateBack() returns a
-   Z_BUF_ERROR.  strm->next_in can be checked for Z_NULL to see whether it
-   was in() or out() that caused in the error.  Otherwise,  inflateBack()
-   returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format
-   error, or Z_MEM_ERROR if it could not allocate memory for the state.
-   inflateBack() can also return Z_STREAM_ERROR if the input parameters
-   are not correct, i.e. strm is Z_NULL or the state was not initialized.
- */
-int ZEXPORT inflateBack(strm, in, in_desc, out, out_desc)
-z_streamp strm;
-in_func in;
-void FAR *in_desc;
-out_func out;
-void FAR *out_desc;
-{
-    struct inflate_state FAR *state;
-    unsigned char FAR *next;    /* next input */
-    unsigned char FAR *put;     /* next output */
-    unsigned have, left;        /* available input and output */
-    unsigned long hold;         /* bit buffer */
-    unsigned bits;              /* bits in bit buffer */
-    unsigned copy;              /* number of stored or match bytes to copy */
-    unsigned char FAR *from;    /* where to copy match bytes from */
-    code this;                  /* current decoding table entry */
-    code last;                  /* parent table entry */
-    unsigned len;               /* length to copy for repeats, bits to drop */
-    int ret;                    /* return code */
-    static const unsigned short order[19] = /* permutation of code lengths */
-        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-
-    /* Check that the strm exists and that the state was initialized */
-    if (strm == Z_NULL || strm->state == Z_NULL)
-        return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-
-    /* Reset the state */
-    strm->msg = Z_NULL;
-    state->mode = TYPE;
-    state->last = 0;
-    state->whave = 0;
-    next = strm->next_in;
-    have = next != Z_NULL ? strm->avail_in : 0;
-    hold = 0;
-    bits = 0;
-    put = state->window;
-    left = state->wsize;
-
-    /* Inflate until end of block marked as last */
-    for (;;)
-        switch (state->mode) {
-        case TYPE:
-            /* determine and dispatch block type */
-            if (state->last) {
-                BYTEBITS();
-                state->mode = DONE;
-                break;
-            }
-            NEEDBITS(3);
-            state->last = BITS(1);
-            DROPBITS(1);
-            switch (BITS(2)) {
-            case 0:                             /* stored block */
-                Tracev((stderr, "inflate:     stored block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = STORED;
-                break;
-            case 1:                             /* fixed block */
-                fixedtables(state);
-                Tracev((stderr, "inflate:     fixed codes block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = LEN;              /* decode codes */
-                break;
-            case 2:                             /* dynamic block */
-                Tracev((stderr, "inflate:     dynamic codes block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = TABLE;
-                break;
-            case 3:
-                strm->msg = (char *)"invalid block type";
-                state->mode = BAD;
-            }
-            DROPBITS(2);
-            break;
-
-        case STORED:
-            /* get and verify stored block length */
-            BYTEBITS();                         /* go to byte boundary */
-            NEEDBITS(32);
-            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
-                strm->msg = (char *)"invalid stored block lengths";
-                state->mode = BAD;
-                break;
-            }
-            state->length = (unsigned)hold & 0xffff;
-            Tracev((stderr, "inflate:       stored length %u\n",
-                    state->length));
-            INITBITS();
-
-            /* copy stored block from input to output */
-            while (state->length != 0) {
-                copy = state->length;
-                PULL();
-                ROOM();
-                if (copy > have) copy = have;
-                if (copy > left) copy = left;
-                zmemcpy(put, next, copy);
-                have -= copy;
-                next += copy;
-                left -= copy;
-                put += copy;
-                state->length -= copy;
-            }
-            Tracev((stderr, "inflate:       stored end\n"));
-            state->mode = TYPE;
-            break;
-
-        case TABLE:
-            /* get dynamic table entries descriptor */
-            NEEDBITS(14);
-            state->nlen = BITS(5) + 257;
-            DROPBITS(5);
-            state->ndist = BITS(5) + 1;
-            DROPBITS(5);
-            state->ncode = BITS(4) + 4;
-            DROPBITS(4);
-#ifndef PKZIP_BUG_WORKAROUND
-            if (state->nlen > 286 || state->ndist > 30) {
-                strm->msg = (char *)"too many length or distance symbols";
-                state->mode = BAD;
-                break;
-            }
-#endif
-            Tracev((stderr, "inflate:       table sizes ok\n"));
-
-            /* get code length code lengths (not a typo) */
-            state->have = 0;
-            while (state->have < state->ncode) {
-                NEEDBITS(3);
-                state->lens[order[state->have++]] = (unsigned short)BITS(3);
-                DROPBITS(3);
-            }
-            while (state->have < 19)
-                state->lens[order[state->have++]] = 0;
-            state->next = state->codes;
-            state->lencode = (code const FAR *)(state->next);
-            state->lenbits = 7;
-            ret = inflate_table(CODES, state->lens, 19, &(state->next),
-                                &(state->lenbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid code lengths set";
-                state->mode = BAD;
-                break;
-            }
-            Tracev((stderr, "inflate:       code lengths ok\n"));
-
-            /* get length and distance code code lengths */
-            state->have = 0;
-            while (state->have < state->nlen + state->ndist) {
-                for (;;) {
-                    this = state->lencode[BITS(state->lenbits)];
-                    if ((unsigned)(this.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                if (this.val < 16) {
-                    NEEDBITS(this.bits);
-                    DROPBITS(this.bits);
-                    state->lens[state->have++] = this.val;
-                }
-                else {
-                    if (this.val == 16) {
-                        NEEDBITS(this.bits + 2);
-                        DROPBITS(this.bits);
-                        if (state->have == 0) {
-                            strm->msg = (char *)"invalid bit length repeat";
-                            state->mode = BAD;
-                            break;
-                        }
-                        len = (unsigned)(state->lens[state->have - 1]);
-                        copy = 3 + BITS(2);
-                        DROPBITS(2);
-                    }
-                    else if (this.val == 17) {
-                        NEEDBITS(this.bits + 3);
-                        DROPBITS(this.bits);
-                        len = 0;
-                        copy = 3 + BITS(3);
-                        DROPBITS(3);
-                    }
-                    else {
-                        NEEDBITS(this.bits + 7);
-                        DROPBITS(this.bits);
-                        len = 0;
-                        copy = 11 + BITS(7);
-                        DROPBITS(7);
-                    }
-                    if (state->have + copy > state->nlen + state->ndist) {
-                        strm->msg = (char *)"invalid bit length repeat";
-                        state->mode = BAD;
-                        break;
-                    }
-                    while (copy--)
-                        state->lens[state->have++] = (unsigned short)len;
-                }
-            }
-
-            /* handle error breaks in while */
-            if (state->mode == BAD) break;
-
-            /* build code tables */
-            state->next = state->codes;
-            state->lencode = (code const FAR *)(state->next);
-            state->lenbits = 9;
-            ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
-                                &(state->lenbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid literal/lengths set";
-                state->mode = BAD;
-                break;
-            }
-            state->distcode = (code const FAR *)(state->next);
-            state->distbits = 6;
-            ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
-                            &(state->next), &(state->distbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid distances set";
-                state->mode = BAD;
-                break;
-            }
-            Tracev((stderr, "inflate:       codes ok\n"));
-            state->mode = LEN;
-
-        case LEN:
-            /* use inflate_fast() if we have enough input and output */
-            if (have >= 6 && left >= 258) {
-                RESTORE();
-                if (state->whave < state->wsize)
-                    state->whave = state->wsize - left;
-                inflate_fast(strm, state->wsize);
-                LOAD();
-                break;
-            }
-
-            /* get a literal, length, or end-of-block code */
-            for (;;) {
-                this = state->lencode[BITS(state->lenbits)];
-                if ((unsigned)(this.bits) <= bits) break;
-                PULLBYTE();
-            }
-            if (this.op && (this.op & 0xf0) == 0) {
-                last = this;
-                for (;;) {
-                    this = state->lencode[last.val +
-                            (BITS(last.bits + last.op) >> last.bits)];
-                    if ((unsigned)(last.bits + this.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                DROPBITS(last.bits);
-            }
-            DROPBITS(this.bits);
-            state->length = (unsigned)this.val;
-
-            /* process literal */
-            if (this.op == 0) {
-                Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
-                        "inflate:         literal '%c'\n" :
-                        "inflate:         literal 0x%02x\n", this.val));
-                ROOM();
-                *put++ = (unsigned char)(state->length);
-                left--;
-                state->mode = LEN;
-                break;
-            }
-
-            /* process end of block */
-            if (this.op & 32) {
-                Tracevv((stderr, "inflate:         end of block\n"));
-                state->mode = TYPE;
-                break;
-            }
-
-            /* invalid code */
-            if (this.op & 64) {
-                strm->msg = (char *)"invalid literal/length code";
-                state->mode = BAD;
-                break;
-            }
-
-            /* length code -- get extra bits, if any */
-            state->extra = (unsigned)(this.op) & 15;
-            if (state->extra != 0) {
-                NEEDBITS(state->extra);
-                state->length += BITS(state->extra);
-                DROPBITS(state->extra);
-            }
-            Tracevv((stderr, "inflate:         length %u\n", state->length));
-
-            /* get distance code */
-            for (;;) {
-                this = state->distcode[BITS(state->distbits)];
-                if ((unsigned)(this.bits) <= bits) break;
-                PULLBYTE();
-            }
-            if ((this.op & 0xf0) == 0) {
-                last = this;
-                for (;;) {
-                    this = state->distcode[last.val +
-                            (BITS(last.bits + last.op) >> last.bits)];
-                    if ((unsigned)(last.bits + this.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                DROPBITS(last.bits);
-            }
-            DROPBITS(this.bits);
-            if (this.op & 64) {
-                strm->msg = (char *)"invalid distance code";
-                state->mode = BAD;
-                break;
-            }
-            state->offset = (unsigned)this.val;
-
-            /* get distance extra bits, if any */
-            state->extra = (unsigned)(this.op) & 15;
-            if (state->extra != 0) {
-                NEEDBITS(state->extra);
-                state->offset += BITS(state->extra);
-                DROPBITS(state->extra);
-            }
-            if (state->offset > state->wsize - (state->whave < state->wsize ?
-                                                left : 0)) {
-                strm->msg = (char *)"invalid distance too far back";
-                state->mode = BAD;
-                break;
-            }
-            Tracevv((stderr, "inflate:         distance %u\n", state->offset));
-
-            /* copy match from window to output */
-            do {
-                ROOM();
-                copy = state->wsize - state->offset;
-                if (copy < left) {
-                    from = put + copy;
-                    copy = left - copy;
-                }
-                else {
-                    from = put - state->offset;
-                    copy = left;
-                }
-                if (copy > state->length) copy = state->length;
-                state->length -= copy;
-                left -= copy;
-                do {
-                    *put++ = *from++;
-                } while (--copy);
-            } while (state->length != 0);
-            break;
-
-        case DONE:
-            /* inflate stream terminated properly -- write leftover output */
-            ret = Z_STREAM_END;
-            if (left < state->wsize) {
-                if (out(out_desc, state->window, state->wsize - left))
-                    ret = Z_BUF_ERROR;
-            }
-            goto inf_leave;
-
-        case BAD:
-            ret = Z_DATA_ERROR;
-            goto inf_leave;
-
-        default:                /* can't happen, but makes compilers happy */
-            ret = Z_STREAM_ERROR;
-            goto inf_leave;
-        }
-
-    /* Return unused input */
-  inf_leave:
-    strm->next_in = next;
-    strm->avail_in = have;
-    return ret;
-}
-
-int ZEXPORT inflateBackEnd(strm)
-z_streamp strm;
-{
-    if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
-        return Z_STREAM_ERROR;
-    ZFREE(strm, strm->state);
-    strm->state = Z_NULL;
-    Tracev((stderr, "inflate: end\n"));
-    return Z_OK;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/infblock.c b/components/dfs/filesystems/jffs2/cyg/compress/src/infblock.c
deleted file mode 100644
index c2521d5a87..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/infblock.c
+++ /dev/null
@@ -1,403 +0,0 @@
-/* infblock.c -- interpret and process block types to last block
- * Copyright (C) 1995-2002 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "infblock.h"
-#include "inftrees.h"
-//#include "infcodes.h"  //no such file!
-#include "infutil.h"
-
-struct inflate_codes_state {int dummy;}; /* for buggy compilers */
-
-/* simplify the use of the inflate_huft type with some defines */
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-/* Table for deflate from PKZIP's appnote.txt. */
-local const uInt border[] = { /* Order of the bit length code lengths */
-        16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-
-/*
-   Notes beyond the 1.93a appnote.txt:
-
-   1. Distance pointers never point before the beginning of the output
-      stream.
-   2. Distance pointers can point back across blocks, up to 32k away.
-   3. There is an implied maximum of 7 bits for the bit length table and
-      15 bits for the actual data.
-   4. If only one code exists, then it is encoded using one bit.  (Zero
-      would be more efficient, but perhaps a little confusing.)  If two
-      codes exist, they are coded using one bit each (0 and 1).
-   5. There is no way of sending zero distance codes--a dummy must be
-      sent if there are none.  (History: a pre 2.0 version of PKZIP would
-      store blocks with no distance codes, but this was discovered to be
-      too harsh a criterion.)  Valid only for 1.93a.  2.04c does allow
-      zero distance codes, which is sent as one code of zero bits in
-      length.
-   6. There are up to 286 literal/length codes.  Code 256 represents the
-      end-of-block.  Note however that the static length tree defines
-      288 codes just to fill out the Huffman codes.  Codes 286 and 287
-      cannot be used though, since there is no length base or extra bits
-      defined for them.  Similarily, there are up to 30 distance codes.
-      However, static trees define 32 codes (all 5 bits) to fill out the
-      Huffman codes, but the last two had better not show up in the data.
-   7. Unzip can check dynamic Huffman blocks for complete code sets.
-      The exception is that a single code would not be complete (see #4).
-   8. The five bits following the block type is really the number of
-      literal codes sent minus 257.
-   9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
-      (1+6+6).  Therefore, to output three times the length, you output
-      three codes (1+1+1), whereas to output four times the same length,
-      you only need two codes (1+3).  Hmm.
-  10. In the tree reconstruction algorithm, Code = Code + Increment
-      only if BitLength(i) is not zero.  (Pretty obvious.)
-  11. Correction: 4 Bits: # of Bit Length codes - 4     (4 - 19)
-  12. Note: length code 284 can represent 227-258, but length code 285
-      really is 258.  The last length deserves its own, short code
-      since it gets used a lot in very redundant files.  The length
-      258 is special since 258 - 3 (the min match length) is 255.
-  13. The literal/length and distance code bit lengths are read as a
-      single stream of lengths.  It is possible (and advantageous) for
-      a repeat code (16, 17, or 18) to go across the boundary between
-      the two sets of lengths.
- */
-
-
-void inflate_blocks_reset(s, z, c)
-inflate_blocks_statef *s;
-z_streamp z;
-uLongf *c;
-{
-  if (c != Z_NULL)
-    *c = s->check;
-  if (s->mode == BTREE || s->mode == DTREE)
-    ZFREE(z, s->sub.trees.blens);
-  if (s->mode == CODES)
-    inflate_codes_free(s->sub.decode.codes, z);
-  s->mode = TYPE;
-  s->bitk = 0;
-  s->bitb = 0;
-  s->read = s->write = s->window;
-  if (s->checkfn != Z_NULL)
-    z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0);
-  Tracev((stderr, "inflate:   blocks reset\n"));
-}
-
-
-inflate_blocks_statef *inflate_blocks_new(z, c, w)
-z_streamp z;
-check_func c;
-uInt w;
-{
-  inflate_blocks_statef *s;
-
-  if ((s = (inflate_blocks_statef *)ZALLOC
-       (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL)
-    return s;
-  if ((s->hufts =
-       (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL)
-  {
-    ZFREE(z, s);
-    return Z_NULL;
-  }
-  if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL)
-  {
-    ZFREE(z, s->hufts);
-    ZFREE(z, s);
-    return Z_NULL;
-  }
-  s->end = s->window + w;
-  s->checkfn = c;
-  s->mode = TYPE;
-  Tracev((stderr, "inflate:   blocks allocated\n"));
-  inflate_blocks_reset(s, z, Z_NULL);
-  return s;
-}
-
-
-int inflate_blocks(s, z, r)
-inflate_blocks_statef *s;
-z_streamp z;
-int r;
-{
-  uInt t;               /* temporary storage */
-  uLong b;              /* bit buffer */
-  uInt k;               /* bits in bit buffer */
-  Bytef *p;             /* input data pointer */
-  uInt n;               /* bytes available there */
-  Bytef *q;             /* output window write pointer */
-  uInt m;               /* bytes to end of window or read pointer */
-
-  /* copy input/output information to locals (UPDATE macro restores) */
-  LOAD
-
-  /* process input based on current state */
-  while (1) switch (s->mode)
-  {
-    case TYPE:
-      NEEDBITS(3)
-      t = (uInt)b & 7;
-      s->last = t & 1;
-      switch (t >> 1)
-      {
-        case 0:                         /* stored */
-          Tracev((stderr, "inflate:     stored block%s\n",
-                 s->last ? " (last)" : ""));
-          DUMPBITS(3)
-          t = k & 7;                    /* go to byte boundary */
-          DUMPBITS(t)
-          s->mode = LENS;               /* get length of stored block */
-          break;
-        case 1:                         /* fixed */
-          Tracev((stderr, "inflate:     fixed codes block%s\n",
-                 s->last ? " (last)" : ""));
-          {
-            uInt bl, bd;
-            inflate_huft *tl, *td;
-
-            inflate_trees_fixed(&bl, &bd, &tl, &td, z);
-            s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z);
-            if (s->sub.decode.codes == Z_NULL)
-            {
-              r = Z_MEM_ERROR;
-              LEAVE
-            }
-          }
-          DUMPBITS(3)
-          s->mode = CODES;
-          break;
-        case 2:                         /* dynamic */
-          Tracev((stderr, "inflate:     dynamic codes block%s\n",
-                 s->last ? " (last)" : ""));
-          DUMPBITS(3)
-          s->mode = TABLE;
-          break;
-        case 3:                         /* illegal */
-          DUMPBITS(3)
-          s->mode = BAD;
-          z->msg = (char*)"invalid block type";
-          r = Z_DATA_ERROR;
-          LEAVE
-      }
-      break;
-    case LENS:
-      NEEDBITS(32)
-      if ((((~b) >> 16) & 0xffff) != (b & 0xffff))
-      {
-        s->mode = BAD;
-        z->msg = (char*)"invalid stored block lengths";
-        r = Z_DATA_ERROR;
-        LEAVE
-      }
-      s->sub.left = (uInt)b & 0xffff;
-      b = k = 0;                      /* dump bits */
-      Tracev((stderr, "inflate:       stored length %u\n", s->sub.left));
-      s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE);
-      break;
-    case STORED:
-      if (n == 0)
-        LEAVE
-      NEEDOUT
-      t = s->sub.left;
-      if (t > n) t = n;
-      if (t > m) t = m;
-      zmemcpy(q, p, t);
-      p += t;  n -= t;
-      q += t;  m -= t;
-      if ((s->sub.left -= t) != 0)
-        break;
-      Tracev((stderr, "inflate:       stored end, %lu total out\n",
-              z->total_out + (q >= s->read ? q - s->read :
-              (s->end - s->read) + (q - s->window))));
-      s->mode = s->last ? DRY : TYPE;
-      break;
-    case TABLE:
-      NEEDBITS(14)
-      s->sub.trees.table = t = (uInt)b & 0x3fff;
-#ifndef PKZIP_BUG_WORKAROUND
-      if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29)
-      {
-        s->mode = BAD;
-        z->msg = (char*)"too many length or distance symbols";
-        r = Z_DATA_ERROR;
-        LEAVE
-      }
-#endif
-      t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f);
-      if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL)
-      {
-        r = Z_MEM_ERROR;
-        LEAVE
-      }
-      DUMPBITS(14)
-      s->sub.trees.index = 0;
-      Tracev((stderr, "inflate:       table sizes ok\n"));
-      s->mode = BTREE;
-    case BTREE:
-      while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10))
-      {
-        NEEDBITS(3)
-        s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
-        DUMPBITS(3)
-      }
-      while (s->sub.trees.index < 19)
-        s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
-      s->sub.trees.bb = 7;
-      t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb,
-                             &s->sub.trees.tb, s->hufts, z);
-      if (t != Z_OK)
-      {
-        r = t;
-        if (r == Z_DATA_ERROR)
-        {
-          ZFREE(z, s->sub.trees.blens);
-          s->mode = BAD;
-        }
-        LEAVE
-      }
-      s->sub.trees.index = 0;
-      Tracev((stderr, "inflate:       bits tree ok\n"));
-      s->mode = DTREE;
-    case DTREE:
-      while (t = s->sub.trees.table,
-             s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
-      {
-        inflate_huft *h;
-        uInt i, j, c;
-
-        t = s->sub.trees.bb;
-        NEEDBITS(t)
-        h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]);
-        t = h->bits;
-        c = h->base;
-        if (c < 16)
-        {
-          DUMPBITS(t)
-          s->sub.trees.blens[s->sub.trees.index++] = c;
-        }
-        else /* c == 16..18 */
-        {
-          i = c == 18 ? 7 : c - 14;
-          j = c == 18 ? 11 : 3;
-          NEEDBITS(t + i)
-          DUMPBITS(t)
-          j += (uInt)b & inflate_mask[i];
-          DUMPBITS(i)
-          i = s->sub.trees.index;
-          t = s->sub.trees.table;
-          if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) ||
-              (c == 16 && i < 1))
-          {
-            ZFREE(z, s->sub.trees.blens);
-            s->mode = BAD;
-            z->msg = (char*)"invalid bit length repeat";
-            r = Z_DATA_ERROR;
-            LEAVE
-          }
-          c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
-          do {
-            s->sub.trees.blens[i++] = c;
-          } while (--j);
-          s->sub.trees.index = i;
-        }
-      }
-      s->sub.trees.tb = Z_NULL;
-      {
-        uInt bl, bd;
-        inflate_huft *tl, *td;
-        inflate_codes_statef *c;
-
-        bl = 9;         /* must be <= 9 for lookahead assumptions */
-        bd = 6;         /* must be <= 9 for lookahead assumptions */
-        t = s->sub.trees.table;
-        t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
-                                  s->sub.trees.blens, &bl, &bd, &tl, &td,
-                                  s->hufts, z);
-        if (t != Z_OK)
-        {
-          if (t == (uInt)Z_DATA_ERROR)
-          {
-            ZFREE(z, s->sub.trees.blens);
-            s->mode = BAD;
-          }
-          r = t;
-          LEAVE
-        }
-        Tracev((stderr, "inflate:       trees ok\n"));
-        if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
-        {
-          r = Z_MEM_ERROR;
-          LEAVE
-        }
-        s->sub.decode.codes = c;
-      }
-      ZFREE(z, s->sub.trees.blens);
-      s->mode = CODES;
-    case CODES:
-      UPDATE
-      if ((r = inflate_codes(s, z, r)) != Z_STREAM_END)
-        return inflate_flush(s, z, r);
-      r = Z_OK;
-      inflate_codes_free(s->sub.decode.codes, z);
-      LOAD
-      Tracev((stderr, "inflate:       codes end, %lu total out\n",
-              z->total_out + (q >= s->read ? q - s->read :
-              (s->end - s->read) + (q - s->window))));
-      if (!s->last)
-      {
-        s->mode = TYPE;
-        break;
-      }
-      s->mode = DRY;
-    case DRY:
-      FLUSH
-      if (s->read != s->write)
-        LEAVE
-      s->mode = DONE;
-    case DONE:
-      r = Z_STREAM_END;
-      LEAVE
-    case BAD:
-      r = Z_DATA_ERROR;
-      LEAVE
-    default:
-      r = Z_STREAM_ERROR;
-      LEAVE
-  }
-}
-
-
-int inflate_blocks_free(s, z)
-inflate_blocks_statef *s;
-z_streamp z;
-{
-  inflate_blocks_reset(s, z, Z_NULL);
-  ZFREE(z, s->window);
-  ZFREE(z, s->hufts);
-  ZFREE(z, s);
-  Tracev((stderr, "inflate:   blocks freed\n"));
-  return Z_OK;
-}
-
-
-void inflate_set_dictionary(s, d, n)
-inflate_blocks_statef *s;
-const Bytef *d;
-uInt  n;
-{
-  zmemcpy(s->window, d, n);
-  s->read = s->write = s->window + n;
-}
-
-
-/* Returns true if inflate is currently at the end of a block generated
- * by Z_SYNC_FLUSH or Z_FULL_FLUSH.
- * IN assertion: s != Z_NULL
- */
-int inflate_blocks_sync_point(s)
-inflate_blocks_statef *s;
-{
-  return s->mode == LENS;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/infblock.h b/components/dfs/filesystems/jffs2/cyg/compress/src/infblock.h
deleted file mode 100644
index 17ffbda2f8..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/infblock.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* infblock.h -- header to use infblock.c
- * Copyright (C) 1995-2002 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-struct inflate_blocks_state;
-typedef struct inflate_blocks_state FAR inflate_blocks_statef;
-typedef uLong (*check_func) OF((uLong check, const Bytef *buf, uInt len)); // add by prife
-extern inflate_blocks_statef * inflate_blocks_new OF((
-    z_streamp z,
-    check_func c,               /* check function */
-    uInt w));                   /* window size */
-
-extern int inflate_blocks OF((
-    inflate_blocks_statef *,
-    z_streamp ,
-    int));                      /* initial return code */
-
-extern void inflate_blocks_reset OF((
-    inflate_blocks_statef *,
-    z_streamp ,
-    uLongf *));                  /* check value on output */
-
-extern int inflate_blocks_free OF((
-    inflate_blocks_statef *,
-    z_streamp));
-
-extern void inflate_set_dictionary OF((
-    inflate_blocks_statef *s,
-    const Bytef *d,  /* dictionary */
-    uInt  n));       /* dictionary length */
-
-extern int inflate_blocks_sync_point OF((
-    inflate_blocks_statef *s));
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/inffast.c b/components/dfs/filesystems/jffs2/cyg/compress/src/inffast.c
deleted file mode 100644
index bbee92ed1e..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/inffast.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/* inffast.c -- fast decoding
- * Copyright (C) 1995-2004 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-#include "inflate.h"
-#include "inffast.h"
-
-#ifndef ASMINF
-
-/* Allow machine dependent optimization for post-increment or pre-increment.
-   Based on testing to date,
-   Pre-increment preferred for:
-   - PowerPC G3 (Adler)
-   - MIPS R5000 (Randers-Pehrson)
-   Post-increment preferred for:
-   - none
-   No measurable difference:
-   - Pentium III (Anderson)
-   - M68060 (Nikl)
- */
-#ifdef POSTINC
-#  define OFF 0
-#  define PUP(a) *(a)++
-#else
-#  define OFF 1
-#  define PUP(a) *++(a)
-#endif
-
-/*
-   Decode literal, length, and distance codes and write out the resulting
-   literal and match bytes until either not enough input or output is
-   available, an end-of-block is encountered, or a data error is encountered.
-   When large enough input and output buffers are supplied to inflate(), for
-   example, a 16K input buffer and a 64K output buffer, more than 95% of the
-   inflate execution time is spent in this routine.
-
-   Entry assumptions:
-
-        state->mode == LEN
-        strm->avail_in >= 6
-        strm->avail_out >= 258
-        start >= strm->avail_out
-        state->bits < 8
-
-   On return, state->mode is one of:
-
-        LEN -- ran out of enough output space or enough available input
-        TYPE -- reached end of block code, inflate() to interpret next block
-        BAD -- error in block data
-
-   Notes:
-
-    - The maximum input bits used by a length/distance pair is 15 bits for the
-      length code, 5 bits for the length extra, 15 bits for the distance code,
-      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
-      Therefore if strm->avail_in >= 6, then there is enough input to avoid
-      checking for available input while decoding.
-
-    - The maximum bytes that a single length/distance pair can output is 258
-      bytes, which is the maximum length that can be coded.  inflate_fast()
-      requires strm->avail_out >= 258 for each loop to avoid checking for
-      output space.
- */
-void inflate_fast(strm, start)
-z_streamp strm;
-unsigned start;         /* inflate()'s starting value for strm->avail_out */
-{
-    struct inflate_state FAR *state;
-    unsigned char FAR *in;      /* local strm->next_in */
-    unsigned char FAR *last;    /* while in < last, enough input available */
-    unsigned char FAR *out;     /* local strm->next_out */
-    unsigned char FAR *beg;     /* inflate()'s initial strm->next_out */
-    unsigned char FAR *end;     /* while out < end, enough space available */
-#ifdef INFLATE_STRICT
-    unsigned dmax;              /* maximum distance from zlib header */
-#endif
-    unsigned wsize;             /* window size or zero if not using window */
-    unsigned whave;             /* valid bytes in the window */
-    unsigned write;             /* window write index */
-    unsigned char FAR *window;  /* allocated sliding window, if wsize != 0 */
-    unsigned long hold;         /* local strm->hold */
-    unsigned bits;              /* local strm->bits */
-    code const FAR *lcode;      /* local strm->lencode */
-    code const FAR *dcode;      /* local strm->distcode */
-    unsigned lmask;             /* mask for first level of length codes */
-    unsigned dmask;             /* mask for first level of distance codes */
-    code this;                  /* retrieved table entry */
-    unsigned op;                /* code bits, operation, extra bits, or */
-                                /*  window position, window bytes to copy */
-    unsigned len;               /* match length, unused bytes */
-    unsigned dist;              /* match distance */
-    unsigned char FAR *from;    /* where to copy match from */
-
-    /* copy state to local variables */
-    state = (struct inflate_state FAR *)strm->state;
-    in = strm->next_in - OFF;
-    last = in + (strm->avail_in - 5);
-    out = strm->next_out - OFF;
-    beg = out - (start - strm->avail_out);
-    end = out + (strm->avail_out - 257);
-#ifdef INFLATE_STRICT
-    dmax = state->dmax;
-#endif
-    wsize = state->wsize;
-    whave = state->whave;
-    write = state->write;
-    window = state->window;
-    hold = state->hold;
-    bits = state->bits;
-    lcode = state->lencode;
-    dcode = state->distcode;
-    lmask = (1U << state->lenbits) - 1;
-    dmask = (1U << state->distbits) - 1;
-
-    /* decode literals and length/distances until end-of-block or not enough
-       input data or output space */
-    do {
-        if (bits < 15) {
-            hold += (unsigned long)(PUP(in)) << bits;
-            bits += 8;
-            hold += (unsigned long)(PUP(in)) << bits;
-            bits += 8;
-        }
-        this = lcode[hold & lmask];
-      dolen:
-        op = (unsigned)(this.bits);
-        hold >>= op;
-        bits -= op;
-        op = (unsigned)(this.op);
-        if (op == 0) {                          /* literal */
-            Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
-                    "inflate:         literal '%c'\n" :
-                    "inflate:         literal 0x%02x\n", this.val));
-            PUP(out) = (unsigned char)(this.val);
-        }
-        else if (op & 16) {                     /* length base */
-            len = (unsigned)(this.val);
-            op &= 15;                           /* number of extra bits */
-            if (op) {
-                if (bits < op) {
-                    hold += (unsigned long)(PUP(in)) << bits;
-                    bits += 8;
-                }
-                len += (unsigned)hold & ((1U << op) - 1);
-                hold >>= op;
-                bits -= op;
-            }
-            Tracevv((stderr, "inflate:         length %u\n", len));
-            if (bits < 15) {
-                hold += (unsigned long)(PUP(in)) << bits;
-                bits += 8;
-                hold += (unsigned long)(PUP(in)) << bits;
-                bits += 8;
-            }
-            this = dcode[hold & dmask];
-          dodist:
-            op = (unsigned)(this.bits);
-            hold >>= op;
-            bits -= op;
-            op = (unsigned)(this.op);
-            if (op & 16) {                      /* distance base */
-                dist = (unsigned)(this.val);
-                op &= 15;                       /* number of extra bits */
-                if (bits < op) {
-                    hold += (unsigned long)(PUP(in)) << bits;
-                    bits += 8;
-                    if (bits < op) {
-                        hold += (unsigned long)(PUP(in)) << bits;
-                        bits += 8;
-                    }
-                }
-                dist += (unsigned)hold & ((1U << op) - 1);
-#ifdef INFLATE_STRICT
-                if (dist > dmax) {
-                    strm->msg = (char *)"invalid distance too far back";
-                    state->mode = BAD;
-                    break;
-                }
-#endif
-                hold >>= op;
-                bits -= op;
-                Tracevv((stderr, "inflate:         distance %u\n", dist));
-                op = (unsigned)(out - beg);     /* max distance in output */
-                if (dist > op) {                /* see if copy from window */
-                    op = dist - op;             /* distance back in window */
-                    if (op > whave) {
-                        strm->msg = (char *)"invalid distance too far back";
-                        state->mode = BAD;
-                        break;
-                    }
-                    from = window - OFF;
-                    if (write == 0) {           /* very common case */
-                        from += wsize - op;
-                        if (op < len) {         /* some from window */
-                            len -= op;
-                            do {
-                                PUP(out) = PUP(from);
-                            } while (--op);
-                            from = out - dist;  /* rest from output */
-                        }
-                    }
-                    else if (write < op) {      /* wrap around window */
-                        from += wsize + write - op;
-                        op -= write;
-                        if (op < len) {         /* some from end of window */
-                            len -= op;
-                            do {
-                                PUP(out) = PUP(from);
-                            } while (--op);
-                            from = window - OFF;
-                            if (write < len) {  /* some from start of window */
-                                op = write;
-                                len -= op;
-                                do {
-                                    PUP(out) = PUP(from);
-                                } while (--op);
-                                from = out - dist;      /* rest from output */
-                            }
-                        }
-                    }
-                    else {                      /* contiguous in window */
-                        from += write - op;
-                        if (op < len) {         /* some from window */
-                            len -= op;
-                            do {
-                                PUP(out) = PUP(from);
-                            } while (--op);
-                            from = out - dist;  /* rest from output */
-                        }
-                    }
-                    while (len > 2) {
-                        PUP(out) = PUP(from);
-                        PUP(out) = PUP(from);
-                        PUP(out) = PUP(from);
-                        len -= 3;
-                    }
-                    if (len) {
-                        PUP(out) = PUP(from);
-                        if (len > 1)
-                            PUP(out) = PUP(from);
-                    }
-                }
-                else {
-                    from = out - dist;          /* copy direct from output */
-                    do {                        /* minimum length is three */
-                        PUP(out) = PUP(from);
-                        PUP(out) = PUP(from);
-                        PUP(out) = PUP(from);
-                        len -= 3;
-                    } while (len > 2);
-                    if (len) {
-                        PUP(out) = PUP(from);
-                        if (len > 1)
-                            PUP(out) = PUP(from);
-                    }
-                }
-            }
-            else if ((op & 64) == 0) {          /* 2nd level distance code */
-                this = dcode[this.val + (hold & ((1U << op) - 1))];
-                goto dodist;
-            }
-            else {
-                strm->msg = (char *)"invalid distance code";
-                state->mode = BAD;
-                break;
-            }
-        }
-        else if ((op & 64) == 0) {              /* 2nd level length code */
-            this = lcode[this.val + (hold & ((1U << op) - 1))];
-            goto dolen;
-        }
-        else if (op & 32) {                     /* end-of-block */
-            Tracevv((stderr, "inflate:         end of block\n"));
-            state->mode = TYPE;
-            break;
-        }
-        else {
-            strm->msg = (char *)"invalid literal/length code";
-            state->mode = BAD;
-            break;
-        }
-    } while (in < last && out < end);
-
-    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
-    len = bits >> 3;
-    in -= len;
-    bits -= len << 3;
-    hold &= (1U << bits) - 1;
-
-    /* update state and return */
-    strm->next_in = in + OFF;
-    strm->next_out = out + OFF;
-    strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last));
-    strm->avail_out = (unsigned)(out < end ?
-                                 257 + (end - out) : 257 - (out - end));
-    state->hold = hold;
-    state->bits = bits;
-    return;
-}
-
-/*
-   inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe):
-   - Using bit fields for code structure
-   - Different op definition to avoid & for extra bits (do & for table bits)
-   - Three separate decoding do-loops for direct, window, and write == 0
-   - Special case for distance > 1 copies to do overlapped load and store copy
-   - Explicit branch predictions (based on measured branch probabilities)
-   - Deferring match copy and interspersed it with decoding subsequent codes
-   - Swapping literal/length else
-   - Swapping window/direct else
-   - Larger unrolled copy loops (three is about right)
-   - Moving len -= 3 statement into middle of loop
- */
-
-#endif /* !ASMINF */
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/inffast.h b/components/dfs/filesystems/jffs2/cyg/compress/src/inffast.h
deleted file mode 100644
index 1e88d2d97b..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/inffast.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* inffast.h -- header to use inffast.c
- * Copyright (C) 1995-2003 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-void inflate_fast OF((z_streamp strm, unsigned start));
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/inffixed.h b/components/dfs/filesystems/jffs2/cyg/compress/src/inffixed.h
deleted file mode 100644
index 75ed4b5978..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/inffixed.h
+++ /dev/null
@@ -1,94 +0,0 @@
-    /* inffixed.h -- table for decoding fixed codes
-     * Generated automatically by makefixed().
-     */
-
-    /* WARNING: this file should *not* be used by applications. It
-       is part of the implementation of the compression library and
-       is subject to change. Applications should only use zlib.h.
-     */
-
-    static const code lenfix[512] = {
-        {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48},
-        {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128},
-        {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59},
-        {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176},
-        {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20},
-        {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100},
-        {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8},
-        {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216},
-        {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76},
-        {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114},
-        {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},
-        {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148},
-        {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42},
-        {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86},
-        {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15},
-        {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236},
-        {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62},
-        {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142},
-        {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31},
-        {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162},
-        {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25},
-        {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105},
-        {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4},
-        {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202},
-        {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69},
-        {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125},
-        {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13},
-        {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195},
-        {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35},
-        {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91},
-        {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19},
-        {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246},
-        {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55},
-        {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135},
-        {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99},
-        {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190},
-        {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16},
-        {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96},
-        {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6},
-        {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209},
-        {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},
-        {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116},
-        {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4},
-        {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153},
-        {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44},
-        {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82},
-        {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11},
-        {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229},
-        {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58},
-        {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138},
-        {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51},
-        {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173},
-        {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30},
-        {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110},
-        {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0},
-        {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195},
-        {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65},
-        {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121},
-        {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},
-        {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258},
-        {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37},
-        {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93},
-        {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23},
-        {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251},
-        {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51},
-        {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131},
-        {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67},
-        {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183},
-        {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23},
-        {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103},
-        {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9},
-        {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223},
-        {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79},
-        {0,9,255}
-    };
-
-    static const code distfix[32] = {
-        {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025},
-        {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193},
-        {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385},
-        {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577},
-        {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073},
-        {22,5,193},{64,5,0}
-    };
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/inflate.c b/components/dfs/filesystems/jffs2/cyg/compress/src/inflate.c
deleted file mode 100644
index 792fdee8e9..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/inflate.c
+++ /dev/null
@@ -1,1368 +0,0 @@
-/* inflate.c -- zlib decompression
- * Copyright (C) 1995-2005 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- * Change history:
- *
- * 1.2.beta0    24 Nov 2002
- * - First version -- complete rewrite of inflate to simplify code, avoid
- *   creation of window when not needed, minimize use of window when it is
- *   needed, make inffast.c even faster, implement gzip decoding, and to
- *   improve code readability and style over the previous zlib inflate code
- *
- * 1.2.beta1    25 Nov 2002
- * - Use pointers for available input and output checking in inffast.c
- * - Remove input and output counters in inffast.c
- * - Change inffast.c entry and loop from avail_in >= 7 to >= 6
- * - Remove unnecessary second byte pull from length extra in inffast.c
- * - Unroll direct copy to three copies per loop in inffast.c
- *
- * 1.2.beta2    4 Dec 2002
- * - Change external routine names to reduce potential conflicts
- * - Correct filename to inffixed.h for fixed tables in inflate.c
- * - Make hbuf[] unsigned char to match parameter type in inflate.c
- * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset)
- *   to avoid negation problem on Alphas (64 bit) in inflate.c
- *
- * 1.2.beta3    22 Dec 2002
- * - Add comments on state->bits assertion in inffast.c
- * - Add comments on op field in inftrees.h
- * - Fix bug in reuse of allocated window after inflateReset()
- * - Remove bit fields--back to byte structure for speed
- * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths
- * - Change post-increments to pre-increments in inflate_fast(), PPC biased?
- * - Add compile time option, POSTINC, to use post-increments instead (Intel?)
- * - Make MATCH copy in inflate() much faster for when inflate_fast() not used
- * - Use local copies of stream next and avail values, as well as local bit
- *   buffer and bit count in inflate()--for speed when inflate_fast() not used
- *
- * 1.2.beta4    1 Jan 2003
- * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings
- * - Move a comment on output buffer sizes from inffast.c to inflate.c
- * - Add comments in inffast.c to introduce the inflate_fast() routine
- * - Rearrange window copies in inflate_fast() for speed and simplification
- * - Unroll last copy for window match in inflate_fast()
- * - Use local copies of window variables in inflate_fast() for speed
- * - Pull out common write == 0 case for speed in inflate_fast()
- * - Make op and len in inflate_fast() unsigned for consistency
- * - Add FAR to lcode and dcode declarations in inflate_fast()
- * - Simplified bad distance check in inflate_fast()
- * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new
- *   source file infback.c to provide a call-back interface to inflate for
- *   programs like gzip and unzip -- uses window as output buffer to avoid
- *   window copying
- *
- * 1.2.beta5    1 Jan 2003
- * - Improved inflateBack() interface to allow the caller to provide initial
- *   input in strm.
- * - Fixed stored blocks bug in inflateBack()
- *
- * 1.2.beta6    4 Jan 2003
- * - Added comments in inffast.c on effectiveness of POSTINC
- * - Typecasting all around to reduce compiler warnings
- * - Changed loops from while (1) or do {} while (1) to for (;;), again to
- *   make compilers happy
- * - Changed type of window in inflateBackInit() to unsigned char *
- *
- * 1.2.beta7    27 Jan 2003
- * - Changed many types to unsigned or unsigned short to avoid warnings
- * - Added inflateCopy() function
- *
- * 1.2.0        9 Mar 2003
- * - Changed inflateBack() interface to provide separate opaque descriptors
- *   for the in() and out() functions
- * - Changed inflateBack() argument and in_func typedef to swap the length
- *   and buffer address return values for the input function
- * - Check next_in and next_out for Z_NULL on entry to inflate()
- *
- * The history for versions after 1.2.0 are in ChangeLog in zlib distribution.
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-#include "inflate.h"
-#include "inffast.h"
-
-#ifdef MAKEFIXED
-#  ifndef BUILDFIXED
-#    define BUILDFIXED
-#  endif
-#endif
-
-/* function prototypes */
-local void fixedtables OF((struct inflate_state FAR *state));
-local int updatewindow OF((z_streamp strm, unsigned out));
-#ifdef BUILDFIXED
-   void makefixed OF((void));
-#endif
-local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf,
-                              unsigned len));
-
-int ZEXPORT inflateReset(strm)
-z_streamp strm;
-{
-    struct inflate_state FAR *state;
-
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    strm->total_in = strm->total_out = state->total = 0;
-    strm->msg = Z_NULL;
-    strm->adler = 1;        /* to support ill-conceived Java test suite */
-    state->mode = HEAD;
-    state->last = 0;
-    state->havedict = 0;
-    state->dmax = 32768U;
-    state->head = Z_NULL;
-    state->wsize = 0;
-    state->whave = 0;
-    state->write = 0;
-    state->hold = 0;
-    state->bits = 0;
-    state->lencode = state->distcode = state->next = state->codes;
-    Tracev((stderr, "inflate: reset\n"));
-    return Z_OK;
-}
-
-int ZEXPORT inflatePrime(strm, bits, value)
-z_streamp strm;
-int bits;
-int value;
-{
-    struct inflate_state FAR *state;
-
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR;
-    value &= (1L << bits) - 1;
-    state->hold += value << state->bits;
-    state->bits += bits;
-    return Z_OK;
-}
-
-int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size)
-z_streamp strm;
-int windowBits;
-const char *version;
-int stream_size;
-{
-    struct inflate_state FAR *state;
-
-    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
-        stream_size != (int)(sizeof(z_stream)))
-        return Z_VERSION_ERROR;
-    if (strm == Z_NULL) return Z_STREAM_ERROR;
-    strm->msg = Z_NULL;                 /* in case we return an error */
-    if (strm->zalloc == (alloc_func)0) {
-        strm->zalloc = zcalloc;
-        strm->opaque = (voidpf)0;
-    }
-    if (strm->zfree == (free_func)0) strm->zfree = zcfree;
-    state = (struct inflate_state FAR *)
-            ZALLOC(strm, 1, sizeof(struct inflate_state));
-    if (state == Z_NULL) return Z_MEM_ERROR;
-    Tracev((stderr, "inflate: allocated\n"));
-    strm->state = (struct internal_state FAR *)state;
-    if (windowBits < 0) {
-        state->wrap = 0;
-        windowBits = -windowBits;
-    }
-    else {
-        state->wrap = (windowBits >> 4) + 1;
-#ifdef GUNZIP
-        if (windowBits < 48) windowBits &= 15;
-#endif
-    }
-    if (windowBits < 8 || windowBits > 15) {
-        ZFREE(strm, state);
-        strm->state = Z_NULL;
-        return Z_STREAM_ERROR;
-    }
-    state->wbits = (unsigned)windowBits;
-    state->window = Z_NULL;
-    return inflateReset(strm);
-}
-
-int ZEXPORT inflateInit_(strm, version, stream_size)
-z_streamp strm;
-const char *version;
-int stream_size;
-{
-    return inflateInit2_(strm, DEF_WBITS, version, stream_size);
-}
-
-/*
-   Return state with length and distance decoding tables and index sizes set to
-   fixed code decoding.  Normally this returns fixed tables from inffixed.h.
-   If BUILDFIXED is defined, then instead this routine builds the tables the
-   first time it's called, and returns those tables the first time and
-   thereafter.  This reduces the size of the code by about 2K bytes, in
-   exchange for a little execution time.  However, BUILDFIXED should not be
-   used for threaded applications, since the rewriting of the tables and virgin
-   may not be thread-safe.
- */
-local void fixedtables(state)
-struct inflate_state FAR *state;
-{
-#ifdef BUILDFIXED
-    static int virgin = 1;
-    static code *lenfix, *distfix;
-    static code fixed[544];
-
-    /* build fixed huffman tables if first call (may not be thread safe) */
-    if (virgin) {
-        unsigned sym, bits;
-        static code *next;
-
-        /* literal/length table */
-        sym = 0;
-        while (sym < 144) state->lens[sym++] = 8;
-        while (sym < 256) state->lens[sym++] = 9;
-        while (sym < 280) state->lens[sym++] = 7;
-        while (sym < 288) state->lens[sym++] = 8;
-        next = fixed;
-        lenfix = next;
-        bits = 9;
-        inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work);
-
-        /* distance table */
-        sym = 0;
-        while (sym < 32) state->lens[sym++] = 5;
-        distfix = next;
-        bits = 5;
-        inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work);
-
-        /* do this just once */
-        virgin = 0;
-    }
-#else /* !BUILDFIXED */
-#   include "inffixed.h"
-#endif /* BUILDFIXED */
-    state->lencode = lenfix;
-    state->lenbits = 9;
-    state->distcode = distfix;
-    state->distbits = 5;
-}
-
-#ifdef MAKEFIXED
-#include <stdio.h>
-
-/*
-   Write out the inffixed.h that is #include'd above.  Defining MAKEFIXED also
-   defines BUILDFIXED, so the tables are built on the fly.  makefixed() writes
-   those tables to stdout, which would be piped to inffixed.h.  A small program
-   can simply call makefixed to do this:
-
-    void makefixed(void);
-
-    int main(void)
-    {
-        makefixed();
-        return 0;
-    }
-
-   Then that can be linked with zlib built with MAKEFIXED defined and run:
-
-    a.out > inffixed.h
- */
-void makefixed()
-{
-    unsigned low, size;
-    struct inflate_state state;
-
-    fixedtables(&state);
-    puts("    /* inffixed.h -- table for decoding fixed codes");
-    puts("     * Generated automatically by makefixed().");
-    puts("     */");
-    puts("");
-    puts("    /* WARNING: this file should *not* be used by applications.");
-    puts("       It is part of the implementation of this library and is");
-    puts("       subject to change. Applications should only use zlib.h.");
-    puts("     */");
-    puts("");
-    size = 1U << 9;
-    printf("    static const code lenfix[%u] = {", size);
-    low = 0;
-    for (;;) {
-        if ((low % 7) == 0) printf("\n        ");
-        printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits,
-               state.lencode[low].val);
-        if (++low == size) break;
-        putchar(',');
-    }
-    puts("\n    };");
-    size = 1U << 5;
-    printf("\n    static const code distfix[%u] = {", size);
-    low = 0;
-    for (;;) {
-        if ((low % 6) == 0) printf("\n        ");
-        printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits,
-               state.distcode[low].val);
-        if (++low == size) break;
-        putchar(',');
-    }
-    puts("\n    };");
-}
-#endif /* MAKEFIXED */
-
-/*
-   Update the window with the last wsize (normally 32K) bytes written before
-   returning.  If window does not exist yet, create it.  This is only called
-   when a window is already in use, or when output has been written during this
-   inflate call, but the end of the deflate stream has not been reached yet.
-   It is also called to create a window for dictionary data when a dictionary
-   is loaded.
-
-   Providing output buffers larger than 32K to inflate() should provide a speed
-   advantage, since only the last 32K of output is copied to the sliding window
-   upon return from inflate(), and since all distances after the first 32K of
-   output will fall in the output data, making match copies simpler and faster.
-   The advantage may be dependent on the size of the processor's data caches.
- */
-local int updatewindow(strm, out)
-z_streamp strm;
-unsigned out;
-{
-    struct inflate_state FAR *state;
-    unsigned copy, dist;
-
-    state = (struct inflate_state FAR *)strm->state;
-
-    /* if it hasn't been done already, allocate space for the window */
-    if (state->window == Z_NULL) {
-        state->window = (unsigned char FAR *)
-                        ZALLOC(strm, 1U << state->wbits,
-                               sizeof(unsigned char));
-        if (state->window == Z_NULL) return 1;
-    }
-
-    /* if window not in use yet, initialize */
-    if (state->wsize == 0) {
-        state->wsize = 1U << state->wbits;
-        state->write = 0;
-        state->whave = 0;
-    }
-
-    /* copy state->wsize or less output bytes into the circular window */
-    copy = out - strm->avail_out;
-    if (copy >= state->wsize) {
-        zmemcpy(state->window, strm->next_out - state->wsize, state->wsize);
-        state->write = 0;
-        state->whave = state->wsize;
-    }
-    else {
-        dist = state->wsize - state->write;
-        if (dist > copy) dist = copy;
-        zmemcpy(state->window + state->write, strm->next_out - copy, dist);
-        copy -= dist;
-        if (copy) {
-            zmemcpy(state->window, strm->next_out - copy, copy);
-            state->write = copy;
-            state->whave = state->wsize;
-        }
-        else {
-            state->write += dist;
-            if (state->write == state->wsize) state->write = 0;
-            if (state->whave < state->wsize) state->whave += dist;
-        }
-    }
-    return 0;
-}
-
-/* Macros for inflate(): */
-
-/* check function to use adler32() for zlib or crc32() for gzip */
-#ifdef GUNZIP
-#  define UPDATE(check, buf, len) \
-    (state->flags ? crc32(check, buf, len) : adler32(check, buf, len))
-#else
-#  define UPDATE(check, buf, len) adler32(check, buf, len)
-#endif
-
-/* check macros for header crc */
-#ifdef GUNZIP
-#  define CRC2(check, word) \
-    do { \
-        hbuf[0] = (unsigned char)(word); \
-        hbuf[1] = (unsigned char)((word) >> 8); \
-        check = crc32(check, hbuf, 2); \
-    } while (0)
-
-#  define CRC4(check, word) \
-    do { \
-        hbuf[0] = (unsigned char)(word); \
-        hbuf[1] = (unsigned char)((word) >> 8); \
-        hbuf[2] = (unsigned char)((word) >> 16); \
-        hbuf[3] = (unsigned char)((word) >> 24); \
-        check = crc32(check, hbuf, 4); \
-    } while (0)
-#endif
-
-/* Load registers with state in inflate() for speed */
-#define LOAD() \
-    do { \
-        put = strm->next_out; \
-        left = strm->avail_out; \
-        next = strm->next_in; \
-        have = strm->avail_in; \
-        hold = state->hold; \
-        bits = state->bits; \
-    } while (0)
-
-/* Restore state from registers in inflate() */
-#define RESTORE() \
-    do { \
-        strm->next_out = put; \
-        strm->avail_out = left; \
-        strm->next_in = next; \
-        strm->avail_in = have; \
-        state->hold = hold; \
-        state->bits = bits; \
-    } while (0)
-
-/* Clear the input bit accumulator */
-#define INITBITS() \
-    do { \
-        hold = 0; \
-        bits = 0; \
-    } while (0)
-
-/* Get a byte of input into the bit accumulator, or return from inflate()
-   if there is no input available. */
-#define PULLBYTE() \
-    do { \
-        if (have == 0) goto inf_leave; \
-        have--; \
-        hold += (unsigned long)(*next++) << bits; \
-        bits += 8; \
-    } while (0)
-
-/* Assure that there are at least n bits in the bit accumulator.  If there is
-   not enough available input to do that, then return from inflate(). */
-#define NEEDBITS(n) \
-    do { \
-        while (bits < (unsigned)(n)) \
-            PULLBYTE(); \
-    } while (0)
-
-/* Return the low n bits of the bit accumulator (n < 16) */
-#define BITS(n) \
-    ((unsigned)hold & ((1U << (n)) - 1))
-
-/* Remove n bits from the bit accumulator */
-#define DROPBITS(n) \
-    do { \
-        hold >>= (n); \
-        bits -= (unsigned)(n); \
-    } while (0)
-
-/* Remove zero to seven bits as needed to go to a byte boundary */
-#define BYTEBITS() \
-    do { \
-        hold >>= bits & 7; \
-        bits -= bits & 7; \
-    } while (0)
-
-/* Reverse the bytes in a 32-bit value */
-#define REVERSE(q) \
-    ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
-     (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))
-
-/*
-   inflate() uses a state machine to process as much input data and generate as
-   much output data as possible before returning.  The state machine is
-   structured roughly as follows:
-
-    for (;;) switch (state) {
-    ...
-    case STATEn:
-        if (not enough input data or output space to make progress)
-            return;
-        ... make progress ...
-        state = STATEm;
-        break;
-    ...
-    }
-
-   so when inflate() is called again, the same case is attempted again, and
-   if the appropriate resources are provided, the machine proceeds to the
-   next state.  The NEEDBITS() macro is usually the way the state evaluates
-   whether it can proceed or should return.  NEEDBITS() does the return if
-   the requested bits are not available.  The typical use of the BITS macros
-   is:
-
-        NEEDBITS(n);
-        ... do something with BITS(n) ...
-        DROPBITS(n);
-
-   where NEEDBITS(n) either returns from inflate() if there isn't enough
-   input left to load n bits into the accumulator, or it continues.  BITS(n)
-   gives the low n bits in the accumulator.  When done, DROPBITS(n) drops
-   the low n bits off the accumulator.  INITBITS() clears the accumulator
-   and sets the number of available bits to zero.  BYTEBITS() discards just
-   enough bits to put the accumulator on a byte boundary.  After BYTEBITS()
-   and a NEEDBITS(8), then BITS(8) would return the next byte in the stream.
-
-   NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return
-   if there is no input available.  The decoding of variable length codes uses
-   PULLBYTE() directly in order to pull just enough bytes to decode the next
-   code, and no more.
-
-   Some states loop until they get enough input, making sure that enough
-   state information is maintained to continue the loop where it left off
-   if NEEDBITS() returns in the loop.  For example, want, need, and keep
-   would all have to actually be part of the saved state in case NEEDBITS()
-   returns:
-
-    case STATEw:
-        while (want < need) {
-            NEEDBITS(n);
-            keep[want++] = BITS(n);
-            DROPBITS(n);
-        }
-        state = STATEx;
-    case STATEx:
-
-   As shown above, if the next state is also the next case, then the break
-   is omitted.
-
-   A state may also return if there is not enough output space available to
-   complete that state.  Those states are copying stored data, writing a
-   literal byte, and copying a matching string.
-
-   When returning, a "goto inf_leave" is used to update the total counters,
-   update the check value, and determine whether any progress has been made
-   during that inflate() call in order to return the proper return code.
-   Progress is defined as a change in either strm->avail_in or strm->avail_out.
-   When there is a window, goto inf_leave will update the window with the last
-   output written.  If a goto inf_leave occurs in the middle of decompression
-   and there is no window currently, goto inf_leave will create one and copy
-   output to the window for the next call of inflate().
-
-   In this implementation, the flush parameter of inflate() only affects the
-   return code (per zlib.h).  inflate() always writes as much as possible to
-   strm->next_out, given the space available and the provided input--the effect
-   documented in zlib.h of Z_SYNC_FLUSH.  Furthermore, inflate() always defers
-   the allocation of and copying into a sliding window until necessary, which
-   provides the effect documented in zlib.h for Z_FINISH when the entire input
-   stream available.  So the only thing the flush parameter actually does is:
-   when flush is set to Z_FINISH, inflate() cannot return Z_OK.  Instead it
-   will return Z_BUF_ERROR if it has not reached the end of the stream.
- */
-
-int ZEXPORT inflate(strm, flush)
-z_streamp strm;
-int flush;
-{
-    struct inflate_state FAR *state;
-    unsigned char FAR *next;    /* next input */
-    unsigned char FAR *put;     /* next output */
-    unsigned have, left;        /* available input and output */
-    unsigned long hold;         /* bit buffer */
-    unsigned bits;              /* bits in bit buffer */
-    unsigned in, out;           /* save starting available input and output */
-    unsigned copy;              /* number of stored or match bytes to copy */
-    unsigned char FAR *from;    /* where to copy match bytes from */
-    code this;                  /* current decoding table entry */
-    code last;                  /* parent table entry */
-    unsigned len;               /* length to copy for repeats, bits to drop */
-    int ret;                    /* return code */
-#ifdef GUNZIP
-    unsigned char hbuf[4];      /* buffer for gzip header crc calculation */
-#endif
-    static const unsigned short order[19] = /* permutation of code lengths */
-        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-
-    if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL ||
-        (strm->next_in == Z_NULL && strm->avail_in != 0))
-        return Z_STREAM_ERROR;
-
-    state = (struct inflate_state FAR *)strm->state;
-    if (state->mode == TYPE) state->mode = TYPEDO;      /* skip check */
-    LOAD();
-    in = have;
-    out = left;
-    ret = Z_OK;
-    for (;;)
-        switch (state->mode) {
-        case HEAD:
-            if (state->wrap == 0) {
-                state->mode = TYPEDO;
-                break;
-            }
-            NEEDBITS(16);
-#ifdef GUNZIP
-            if ((state->wrap & 2) && hold == 0x8b1f) {  /* gzip header */
-                state->check = crc32(0L, Z_NULL, 0);
-                CRC2(state->check, hold);
-                INITBITS();
-                state->mode = FLAGS;
-                break;
-            }
-            state->flags = 0;           /* expect zlib header */
-            if (state->head != Z_NULL)
-                state->head->done = -1;
-            if (!(state->wrap & 1) ||   /* check if zlib header allowed */
-#else
-            if (
-#endif
-                ((BITS(8) << 8) + (hold >> 8)) % 31) {
-                strm->msg = (char *)"incorrect header check";
-                state->mode = BAD;
-                break;
-            }
-            if (BITS(4) != Z_DEFLATED) {
-                strm->msg = (char *)"unknown compression method";
-                state->mode = BAD;
-                break;
-            }
-            DROPBITS(4);
-            len = BITS(4) + 8;
-            if (len > state->wbits) {
-                strm->msg = (char *)"invalid window size";
-                state->mode = BAD;
-                break;
-            }
-            state->dmax = 1U << len;
-            Tracev((stderr, "inflate:   zlib header ok\n"));
-            strm->adler = state->check = adler32(0L, Z_NULL, 0);
-            state->mode = hold & 0x200 ? DICTID : TYPE;
-            INITBITS();
-            break;
-#ifdef GUNZIP
-        case FLAGS:
-            NEEDBITS(16);
-            state->flags = (int)(hold);
-            if ((state->flags & 0xff) != Z_DEFLATED) {
-                strm->msg = (char *)"unknown compression method";
-                state->mode = BAD;
-                break;
-            }
-            if (state->flags & 0xe000) {
-                strm->msg = (char *)"unknown header flags set";
-                state->mode = BAD;
-                break;
-            }
-            if (state->head != Z_NULL)
-                state->head->text = (int)((hold >> 8) & 1);
-            if (state->flags & 0x0200) CRC2(state->check, hold);
-            INITBITS();
-            state->mode = TIME;
-        case TIME:
-            NEEDBITS(32);
-            if (state->head != Z_NULL)
-                state->head->time = hold;
-            if (state->flags & 0x0200) CRC4(state->check, hold);
-            INITBITS();
-            state->mode = OS;
-        case OS:
-            NEEDBITS(16);
-            if (state->head != Z_NULL) {
-                state->head->xflags = (int)(hold & 0xff);
-                state->head->os = (int)(hold >> 8);
-            }
-            if (state->flags & 0x0200) CRC2(state->check, hold);
-            INITBITS();
-            state->mode = EXLEN;
-        case EXLEN:
-            if (state->flags & 0x0400) {
-                NEEDBITS(16);
-                state->length = (unsigned)(hold);
-                if (state->head != Z_NULL)
-                    state->head->extra_len = (unsigned)hold;
-                if (state->flags & 0x0200) CRC2(state->check, hold);
-                INITBITS();
-            }
-            else if (state->head != Z_NULL)
-                state->head->extra = Z_NULL;
-            state->mode = EXTRA;
-        case EXTRA:
-            if (state->flags & 0x0400) {
-                copy = state->length;
-                if (copy > have) copy = have;
-                if (copy) {
-                    if (state->head != Z_NULL &&
-                        state->head->extra != Z_NULL) {
-                        len = state->head->extra_len - state->length;
-                        zmemcpy(state->head->extra + len, next,
-                                len + copy > state->head->extra_max ?
-                                state->head->extra_max - len : copy);
-                    }
-                    if (state->flags & 0x0200)
-                        state->check = crc32(state->check, next, copy);
-                    have -= copy;
-                    next += copy;
-                    state->length -= copy;
-                }
-                if (state->length) goto inf_leave;
-            }
-            state->length = 0;
-            state->mode = NAME;
-        case NAME:
-            if (state->flags & 0x0800) {
-                if (have == 0) goto inf_leave;
-                copy = 0;
-                do {
-                    len = (unsigned)(next[copy++]);
-                    if (state->head != Z_NULL &&
-                            state->head->name != Z_NULL &&
-                            state->length < state->head->name_max)
-                        state->head->name[state->length++] = len;
-                } while (len && copy < have);
-                if (state->flags & 0x0200)
-                    state->check = crc32(state->check, next, copy);
-                have -= copy;
-                next += copy;
-                if (len) goto inf_leave;
-            }
-            else if (state->head != Z_NULL)
-                state->head->name = Z_NULL;
-            state->length = 0;
-            state->mode = COMMENT;
-        case COMMENT:
-            if (state->flags & 0x1000) {
-                if (have == 0) goto inf_leave;
-                copy = 0;
-                do {
-                    len = (unsigned)(next[copy++]);
-                    if (state->head != Z_NULL &&
-                            state->head->comment != Z_NULL &&
-                            state->length < state->head->comm_max)
-                        state->head->comment[state->length++] = len;
-                } while (len && copy < have);
-                if (state->flags & 0x0200)
-                    state->check = crc32(state->check, next, copy);
-                have -= copy;
-                next += copy;
-                if (len) goto inf_leave;
-            }
-            else if (state->head != Z_NULL)
-                state->head->comment = Z_NULL;
-            state->mode = HCRC;
-        case HCRC:
-            if (state->flags & 0x0200) {
-                NEEDBITS(16);
-                if (hold != (state->check & 0xffff)) {
-                    strm->msg = (char *)"header crc mismatch";
-                    state->mode = BAD;
-                    break;
-                }
-                INITBITS();
-            }
-            if (state->head != Z_NULL) {
-                state->head->hcrc = (int)((state->flags >> 9) & 1);
-                state->head->done = 1;
-            }
-            strm->adler = state->check = crc32(0L, Z_NULL, 0);
-            state->mode = TYPE;
-            break;
-#endif
-        case DICTID:
-            NEEDBITS(32);
-            strm->adler = state->check = REVERSE(hold);
-            INITBITS();
-            state->mode = DICT;
-        case DICT:
-            if (state->havedict == 0) {
-                RESTORE();
-                return Z_NEED_DICT;
-            }
-            strm->adler = state->check = adler32(0L, Z_NULL, 0);
-            state->mode = TYPE;
-        case TYPE:
-            if (flush == Z_BLOCK) goto inf_leave;
-        case TYPEDO:
-            if (state->last) {
-                BYTEBITS();
-                state->mode = CHECK;
-                break;
-            }
-            NEEDBITS(3);
-            state->last = BITS(1);
-            DROPBITS(1);
-            switch (BITS(2)) {
-            case 0:                             /* stored block */
-                Tracev((stderr, "inflate:     stored block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = STORED;
-                break;
-            case 1:                             /* fixed block */
-                fixedtables(state);
-                Tracev((stderr, "inflate:     fixed codes block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = LEN;              /* decode codes */
-                break;
-            case 2:                             /* dynamic block */
-                Tracev((stderr, "inflate:     dynamic codes block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = TABLE;
-                break;
-            case 3:
-                strm->msg = (char *)"invalid block type";
-                state->mode = BAD;
-            }
-            DROPBITS(2);
-            break;
-        case STORED:
-            BYTEBITS();                         /* go to byte boundary */
-            NEEDBITS(32);
-            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
-                strm->msg = (char *)"invalid stored block lengths";
-                state->mode = BAD;
-                break;
-            }
-            state->length = (unsigned)hold & 0xffff;
-            Tracev((stderr, "inflate:       stored length %u\n",
-                    state->length));
-            INITBITS();
-            state->mode = COPY;
-        case COPY:
-            copy = state->length;
-            if (copy) {
-                if (copy > have) copy = have;
-                if (copy > left) copy = left;
-                if (copy == 0) goto inf_leave;
-                zmemcpy(put, next, copy);
-                have -= copy;
-                next += copy;
-                left -= copy;
-                put += copy;
-                state->length -= copy;
-                break;
-            }
-            Tracev((stderr, "inflate:       stored end\n"));
-            state->mode = TYPE;
-            break;
-        case TABLE:
-            NEEDBITS(14);
-            state->nlen = BITS(5) + 257;
-            DROPBITS(5);
-            state->ndist = BITS(5) + 1;
-            DROPBITS(5);
-            state->ncode = BITS(4) + 4;
-            DROPBITS(4);
-#ifndef PKZIP_BUG_WORKAROUND
-            if (state->nlen > 286 || state->ndist > 30) {
-                strm->msg = (char *)"too many length or distance symbols";
-                state->mode = BAD;
-                break;
-            }
-#endif
-            Tracev((stderr, "inflate:       table sizes ok\n"));
-            state->have = 0;
-            state->mode = LENLENS;
-        case LENLENS:
-            while (state->have < state->ncode) {
-                NEEDBITS(3);
-                state->lens[order[state->have++]] = (unsigned short)BITS(3);
-                DROPBITS(3);
-            }
-            while (state->have < 19)
-                state->lens[order[state->have++]] = 0;
-            state->next = state->codes;
-            state->lencode = (code const FAR *)(state->next);
-            state->lenbits = 7;
-            ret = inflate_table(CODES, state->lens, 19, &(state->next),
-                                &(state->lenbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid code lengths set";
-                state->mode = BAD;
-                break;
-            }
-            Tracev((stderr, "inflate:       code lengths ok\n"));
-            state->have = 0;
-            state->mode = CODELENS;
-        case CODELENS:
-            while (state->have < state->nlen + state->ndist) {
-                for (;;) {
-                    this = state->lencode[BITS(state->lenbits)];
-                    if ((unsigned)(this.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                if (this.val < 16) {
-                    NEEDBITS(this.bits);
-                    DROPBITS(this.bits);
-                    state->lens[state->have++] = this.val;
-                }
-                else {
-                    if (this.val == 16) {
-                        NEEDBITS(this.bits + 2);
-                        DROPBITS(this.bits);
-                        if (state->have == 0) {
-                            strm->msg = (char *)"invalid bit length repeat";
-                            state->mode = BAD;
-                            break;
-                        }
-                        len = state->lens[state->have - 1];
-                        copy = 3 + BITS(2);
-                        DROPBITS(2);
-                    }
-                    else if (this.val == 17) {
-                        NEEDBITS(this.bits + 3);
-                        DROPBITS(this.bits);
-                        len = 0;
-                        copy = 3 + BITS(3);
-                        DROPBITS(3);
-                    }
-                    else {
-                        NEEDBITS(this.bits + 7);
-                        DROPBITS(this.bits);
-                        len = 0;
-                        copy = 11 + BITS(7);
-                        DROPBITS(7);
-                    }
-                    if (state->have + copy > state->nlen + state->ndist) {
-                        strm->msg = (char *)"invalid bit length repeat";
-                        state->mode = BAD;
-                        break;
-                    }
-                    while (copy--)
-                        state->lens[state->have++] = (unsigned short)len;
-                }
-            }
-
-            /* handle error breaks in while */
-            if (state->mode == BAD) break;
-
-            /* build code tables */
-            state->next = state->codes;
-            state->lencode = (code const FAR *)(state->next);
-            state->lenbits = 9;
-            ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
-                                &(state->lenbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid literal/lengths set";
-                state->mode = BAD;
-                break;
-            }
-            state->distcode = (code const FAR *)(state->next);
-            state->distbits = 6;
-            ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
-                            &(state->next), &(state->distbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid distances set";
-                state->mode = BAD;
-                break;
-            }
-            Tracev((stderr, "inflate:       codes ok\n"));
-            state->mode = LEN;
-        case LEN:
-            if (have >= 6 && left >= 258) {
-                RESTORE();
-                inflate_fast(strm, out);
-                LOAD();
-                break;
-            }
-            for (;;) {
-                this = state->lencode[BITS(state->lenbits)];
-                if ((unsigned)(this.bits) <= bits) break;
-                PULLBYTE();
-            }
-            if (this.op && (this.op & 0xf0) == 0) {
-                last = this;
-                for (;;) {
-                    this = state->lencode[last.val +
-                            (BITS(last.bits + last.op) >> last.bits)];
-                    if ((unsigned)(last.bits + this.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                DROPBITS(last.bits);
-            }
-            DROPBITS(this.bits);
-            state->length = (unsigned)this.val;
-            if ((int)(this.op) == 0) {
-                Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
-                        "inflate:         literal '%c'\n" :
-                        "inflate:         literal 0x%02x\n", this.val));
-                state->mode = LIT;
-                break;
-            }
-            if (this.op & 32) {
-                Tracevv((stderr, "inflate:         end of block\n"));
-                state->mode = TYPE;
-                break;
-            }
-            if (this.op & 64) {
-                strm->msg = (char *)"invalid literal/length code";
-                state->mode = BAD;
-                break;
-            }
-            state->extra = (unsigned)(this.op) & 15;
-            state->mode = LENEXT;
-        case LENEXT:
-            if (state->extra) {
-                NEEDBITS(state->extra);
-                state->length += BITS(state->extra);
-                DROPBITS(state->extra);
-            }
-            Tracevv((stderr, "inflate:         length %u\n", state->length));
-            state->mode = DIST;
-        case DIST:
-            for (;;) {
-                this = state->distcode[BITS(state->distbits)];
-                if ((unsigned)(this.bits) <= bits) break;
-                PULLBYTE();
-            }
-            if ((this.op & 0xf0) == 0) {
-                last = this;
-                for (;;) {
-                    this = state->distcode[last.val +
-                            (BITS(last.bits + last.op) >> last.bits)];
-                    if ((unsigned)(last.bits + this.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                DROPBITS(last.bits);
-            }
-            DROPBITS(this.bits);
-            if (this.op & 64) {
-                strm->msg = (char *)"invalid distance code";
-                state->mode = BAD;
-                break;
-            }
-            state->offset = (unsigned)this.val;
-            state->extra = (unsigned)(this.op) & 15;
-            state->mode = DISTEXT;
-        case DISTEXT:
-            if (state->extra) {
-                NEEDBITS(state->extra);
-                state->offset += BITS(state->extra);
-                DROPBITS(state->extra);
-            }
-#ifdef INFLATE_STRICT
-            if (state->offset > state->dmax) {
-                strm->msg = (char *)"invalid distance too far back";
-                state->mode = BAD;
-                break;
-            }
-#endif
-            if (state->offset > state->whave + out - left) {
-                strm->msg = (char *)"invalid distance too far back";
-                state->mode = BAD;
-                break;
-            }
-            Tracevv((stderr, "inflate:         distance %u\n", state->offset));
-            state->mode = MATCH;
-        case MATCH:
-            if (left == 0) goto inf_leave;
-            copy = out - left;
-            if (state->offset > copy) {         /* copy from window */
-                copy = state->offset - copy;
-                if (copy > state->write) {
-                    copy -= state->write;
-                    from = state->window + (state->wsize - copy);
-                }
-                else
-                    from = state->window + (state->write - copy);
-                if (copy > state->length) copy = state->length;
-            }
-            else {                              /* copy from output */
-                from = put - state->offset;
-                copy = state->length;
-            }
-            if (copy > left) copy = left;
-            left -= copy;
-            state->length -= copy;
-            do {
-                *put++ = *from++;
-            } while (--copy);
-            if (state->length == 0) state->mode = LEN;
-            break;
-        case LIT:
-            if (left == 0) goto inf_leave;
-            *put++ = (unsigned char)(state->length);
-            left--;
-            state->mode = LEN;
-            break;
-        case CHECK:
-            if (state->wrap) {
-                NEEDBITS(32);
-                out -= left;
-                strm->total_out += out;
-                state->total += out;
-                if (out)
-                    strm->adler = state->check =
-                        UPDATE(state->check, put - out, out);
-                out = left;
-                if ((
-#ifdef GUNZIP
-                     state->flags ? hold :
-#endif
-                     REVERSE(hold)) != state->check) {
-                    strm->msg = (char *)"incorrect data check";
-                    state->mode = BAD;
-                    break;
-                }
-                INITBITS();
-                Tracev((stderr, "inflate:   check matches trailer\n"));
-            }
-#ifdef GUNZIP
-            state->mode = LENGTH;
-        case LENGTH:
-            if (state->wrap && state->flags) {
-                NEEDBITS(32);
-                if (hold != (state->total & 0xffffffffUL)) {
-                    strm->msg = (char *)"incorrect length check";
-                    state->mode = BAD;
-                    break;
-                }
-                INITBITS();
-                Tracev((stderr, "inflate:   length matches trailer\n"));
-            }
-#endif
-            state->mode = DONE;
-        case DONE:
-            ret = Z_STREAM_END;
-            goto inf_leave;
-        case BAD:
-            ret = Z_DATA_ERROR;
-            goto inf_leave;
-        case MEM:
-            return Z_MEM_ERROR;
-        case SYNC:
-        default:
-            return Z_STREAM_ERROR;
-        }
-
-    /*
-       Return from inflate(), updating the total counts and the check value.
-       If there was no progress during the inflate() call, return a buffer
-       error.  Call updatewindow() to create and/or update the window state.
-       Note: a memory error from inflate() is non-recoverable.
-     */
-  inf_leave:
-    RESTORE();
-    if (state->wsize || (state->mode < CHECK && out != strm->avail_out))
-        if (updatewindow(strm, out)) {
-            state->mode = MEM;
-            return Z_MEM_ERROR;
-        }
-    in -= strm->avail_in;
-    out -= strm->avail_out;
-    strm->total_in += in;
-    strm->total_out += out;
-    state->total += out;
-    if (state->wrap && out)
-        strm->adler = state->check =
-            UPDATE(state->check, strm->next_out - out, out);
-    strm->data_type = state->bits + (state->last ? 64 : 0) +
-                      (state->mode == TYPE ? 128 : 0);
-    if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
-        ret = Z_BUF_ERROR;
-    return ret;
-}
-
-int ZEXPORT inflateEnd(strm)
-z_streamp strm;
-{
-    struct inflate_state FAR *state;
-    if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
-        return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    if (state->window != Z_NULL) ZFREE(strm, state->window);
-    ZFREE(strm, strm->state);
-    strm->state = Z_NULL;
-    Tracev((stderr, "inflate: end\n"));
-    return Z_OK;
-}
-
-int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength)
-z_streamp strm;
-const Bytef *dictionary;
-uInt dictLength;
-{
-    struct inflate_state FAR *state;
-    unsigned long id;
-
-    /* check state */
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    if (state->wrap != 0 && state->mode != DICT)
-        return Z_STREAM_ERROR;
-
-    /* check for correct dictionary id */
-    if (state->mode == DICT) {
-        id = adler32(0L, Z_NULL, 0);
-        id = adler32(id, dictionary, dictLength);
-        if (id != state->check)
-            return Z_DATA_ERROR;
-    }
-
-    /* copy dictionary to window */
-    if (updatewindow(strm, strm->avail_out)) {
-        state->mode = MEM;
-        return Z_MEM_ERROR;
-    }
-    if (dictLength > state->wsize) {
-        zmemcpy(state->window, dictionary + dictLength - state->wsize,
-                state->wsize);
-        state->whave = state->wsize;
-    }
-    else {
-        zmemcpy(state->window + state->wsize - dictLength, dictionary,
-                dictLength);
-        state->whave = dictLength;
-    }
-    state->havedict = 1;
-    Tracev((stderr, "inflate:   dictionary set\n"));
-    return Z_OK;
-}
-
-int ZEXPORT inflateGetHeader(strm, head)
-z_streamp strm;
-gz_headerp head;
-{
-    struct inflate_state FAR *state;
-
-    /* check state */
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    if ((state->wrap & 2) == 0) return Z_STREAM_ERROR;
-
-    /* save header structure */
-    state->head = head;
-    head->done = 0;
-    return Z_OK;
-}
-
-/*
-   Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff.  Return when found
-   or when out of input.  When called, *have is the number of pattern bytes
-   found in order so far, in 0..3.  On return *have is updated to the new
-   state.  If on return *have equals four, then the pattern was found and the
-   return value is how many bytes were read including the last byte of the
-   pattern.  If *have is less than four, then the pattern has not been found
-   yet and the return value is len.  In the latter case, syncsearch() can be
-   called again with more data and the *have state.  *have is initialized to
-   zero for the first call.
- */
-local unsigned syncsearch(have, buf, len)
-unsigned FAR *have;
-unsigned char FAR *buf;
-unsigned len;
-{
-    unsigned got;
-    unsigned next;
-
-    got = *have;
-    next = 0;
-    while (next < len && got < 4) {
-        if ((int)(buf[next]) == (got < 2 ? 0 : 0xff))
-            got++;
-        else if (buf[next])
-            got = 0;
-        else
-            got = 4 - got;
-        next++;
-    }
-    *have = got;
-    return next;
-}
-
-int ZEXPORT inflateSync(strm)
-z_streamp strm;
-{
-    unsigned len;               /* number of bytes to look at or looked at */
-    unsigned long in, out;      /* temporary to save total_in and total_out */
-    unsigned char buf[4];       /* to restore bit buffer to byte string */
-    struct inflate_state FAR *state;
-
-    /* check parameters */
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR;
-
-    /* if first time, start search in bit buffer */
-    if (state->mode != SYNC) {
-        state->mode = SYNC;
-        state->hold <<= state->bits & 7;
-        state->bits -= state->bits & 7;
-        len = 0;
-        while (state->bits >= 8) {
-            buf[len++] = (unsigned char)(state->hold);
-            state->hold >>= 8;
-            state->bits -= 8;
-        }
-        state->have = 0;
-        syncsearch(&(state->have), buf, len);
-    }
-
-    /* search available input */
-    len = syncsearch(&(state->have), strm->next_in, strm->avail_in);
-    strm->avail_in -= len;
-    strm->next_in += len;
-    strm->total_in += len;
-
-    /* return no joy or set up to restart inflate() on a new block */
-    if (state->have != 4) return Z_DATA_ERROR;
-    in = strm->total_in;  out = strm->total_out;
-    inflateReset(strm);
-    strm->total_in = in;  strm->total_out = out;
-    state->mode = TYPE;
-    return Z_OK;
-}
-
-/*
-   Returns true if inflate is currently at the end of a block generated by
-   Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP
-   implementation to provide an additional safety check. PPP uses
-   Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored
-   block. When decompressing, PPP checks that at the end of input packet,
-   inflate is waiting for these length bytes.
- */
-int ZEXPORT inflateSyncPoint(strm)
-z_streamp strm;
-{
-    struct inflate_state FAR *state;
-
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    return state->mode == STORED && state->bits == 0;
-}
-
-int ZEXPORT inflateCopy(dest, source)
-z_streamp dest;
-z_streamp source;
-{
-    struct inflate_state FAR *state;
-    struct inflate_state FAR *copy;
-    unsigned char FAR *window;
-    unsigned wsize;
-
-    /* check input */
-    if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL ||
-        source->zalloc == (alloc_func)0 || source->zfree == (free_func)0)
-        return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)source->state;
-
-    /* allocate space */
-    copy = (struct inflate_state FAR *)
-           ZALLOC(source, 1, sizeof(struct inflate_state));
-    if (copy == Z_NULL) return Z_MEM_ERROR;
-    window = Z_NULL;
-    if (state->window != Z_NULL) {
-        window = (unsigned char FAR *)
-                 ZALLOC(source, 1U << state->wbits, sizeof(unsigned char));
-        if (window == Z_NULL) {
-            ZFREE(source, copy);
-            return Z_MEM_ERROR;
-        }
-    }
-
-    /* copy state */
-    zmemcpy(dest, source, sizeof(z_stream));
-    zmemcpy(copy, state, sizeof(struct inflate_state));
-    if (state->lencode >= state->codes &&
-        state->lencode <= state->codes + ENOUGH - 1) {
-        copy->lencode = copy->codes + (state->lencode - state->codes);
-        copy->distcode = copy->codes + (state->distcode - state->codes);
-    }
-    copy->next = copy->codes + (state->next - state->codes);
-    if (window != Z_NULL) {
-        wsize = 1U << state->wbits;
-        zmemcpy(window, state->window, wsize);
-    }
-    copy->window = window;
-    dest->state = (struct internal_state FAR *)copy;
-    return Z_OK;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/inflate.h b/components/dfs/filesystems/jffs2/cyg/compress/src/inflate.h
deleted file mode 100644
index 07bd3e78a7..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/inflate.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/* inflate.h -- internal inflate state definition
- * Copyright (C) 1995-2004 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* define NO_GZIP when compiling if you want to disable gzip header and
-   trailer decoding by inflate().  NO_GZIP would be used to avoid linking in
-   the crc code when it is not needed.  For shared libraries, gzip decoding
-   should be left enabled. */
-#ifndef NO_GZIP
-#  define GUNZIP
-#endif
-
-/* Possible inflate modes between inflate() calls */
-typedef enum {
-    HEAD,       /* i: waiting for magic header */
-    FLAGS,      /* i: waiting for method and flags (gzip) */
-    TIME,       /* i: waiting for modification time (gzip) */
-    OS,         /* i: waiting for extra flags and operating system (gzip) */
-    EXLEN,      /* i: waiting for extra length (gzip) */
-    EXTRA,      /* i: waiting for extra bytes (gzip) */
-    NAME,       /* i: waiting for end of file name (gzip) */
-    COMMENT,    /* i: waiting for end of comment (gzip) */
-    HCRC,       /* i: waiting for header crc (gzip) */
-    DICTID,     /* i: waiting for dictionary check value */
-    DICT,       /* waiting for inflateSetDictionary() call */
-        TYPE,       /* i: waiting for type bits, including last-flag bit */
-        TYPEDO,     /* i: same, but skip check to exit inflate on new block */
-        STORED,     /* i: waiting for stored size (length and complement) */
-        COPY,       /* i/o: waiting for input or output to copy stored block */
-        TABLE,      /* i: waiting for dynamic block table lengths */
-        LENLENS,    /* i: waiting for code length code lengths */
-        CODELENS,   /* i: waiting for length/lit and distance code lengths */
-            LEN,        /* i: waiting for length/lit code */
-            LENEXT,     /* i: waiting for length extra bits */
-            DIST,       /* i: waiting for distance code */
-            DISTEXT,    /* i: waiting for distance extra bits */
-            MATCH,      /* o: waiting for output space to copy string */
-            LIT,        /* o: waiting for output space to write literal */
-    CHECK,      /* i: waiting for 32-bit check value */
-    LENGTH,     /* i: waiting for 32-bit length (gzip) */
-    DONE,       /* finished check, done -- remain here until reset */
-    BAD,        /* got a data error -- remain here until reset */
-    MEM,        /* got an inflate() memory error -- remain here until reset */
-    SYNC        /* looking for synchronization bytes to restart inflate() */
-} inflate_mode;
-
-/*
-    State transitions between above modes -
-
-    (most modes can go to the BAD or MEM mode -- not shown for clarity)
-
-    Process header:
-        HEAD -> (gzip) or (zlib)
-        (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME
-        NAME -> COMMENT -> HCRC -> TYPE
-        (zlib) -> DICTID or TYPE
-        DICTID -> DICT -> TYPE
-    Read deflate blocks:
-            TYPE -> STORED or TABLE or LEN or CHECK
-            STORED -> COPY -> TYPE
-            TABLE -> LENLENS -> CODELENS -> LEN
-    Read deflate codes:
-                LEN -> LENEXT or LIT or TYPE
-                LENEXT -> DIST -> DISTEXT -> MATCH -> LEN
-                LIT -> LEN
-    Process trailer:
-        CHECK -> LENGTH -> DONE
- */
-
-/* state maintained between inflate() calls.  Approximately 7K bytes. */
-struct inflate_state {
-    inflate_mode mode;          /* current inflate mode */
-    int last;                   /* true if processing last block */
-    int wrap;                   /* bit 0 true for zlib, bit 1 true for gzip */
-    int havedict;               /* true if dictionary provided */
-    int flags;                  /* gzip header method and flags (0 if zlib) */
-    unsigned dmax;              /* zlib header max distance (INFLATE_STRICT) */
-    unsigned long check;        /* protected copy of check value */
-    unsigned long total;        /* protected copy of output count */
-    gz_headerp head;            /* where to save gzip header information */
-        /* sliding window */
-    unsigned wbits;             /* log base 2 of requested window size */
-    unsigned wsize;             /* window size or zero if not using window */
-    unsigned whave;             /* valid bytes in the window */
-    unsigned write;             /* window write index */
-    unsigned char FAR *window;  /* allocated sliding window, if needed */
-        /* bit accumulator */
-    unsigned long hold;         /* input bit accumulator */
-    unsigned bits;              /* number of bits in "in" */
-        /* for string and stored block copying */
-    unsigned length;            /* literal or length of data to copy */
-    unsigned offset;            /* distance back to copy string from */
-        /* for table and code decoding */
-    unsigned extra;             /* extra bits needed */
-        /* fixed and dynamic code tables */
-    code const FAR *lencode;    /* starting table for length/literal codes */
-    code const FAR *distcode;   /* starting table for distance codes */
-    unsigned lenbits;           /* index bits for lencode */
-    unsigned distbits;          /* index bits for distcode */
-        /* dynamic table building */
-    unsigned ncode;             /* number of code length code lengths */
-    unsigned nlen;              /* number of length code lengths */
-    unsigned ndist;             /* number of distance code lengths */
-    unsigned have;              /* number of code lengths in lens[] */
-    code FAR *next;             /* next available space in codes[] */
-    unsigned short lens[320];   /* temporary storage for code lengths */
-    unsigned short work[288];   /* work area for code table building */
-    code codes[ENOUGH];         /* space for code tables */
-};
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/inftrees.c b/components/dfs/filesystems/jffs2/cyg/compress/src/inftrees.c
deleted file mode 100644
index 8a9c13ff03..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/inftrees.c
+++ /dev/null
@@ -1,329 +0,0 @@
-/* inftrees.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2005 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-
-#define MAXBITS 15
-
-const char inflate_copyright[] =
-   " inflate 1.2.3 Copyright 1995-2005 Mark Adler ";
-/*
-  If you use the zlib library in a product, an acknowledgment is welcome
-  in the documentation of your product. If for some reason you cannot
-  include such an acknowledgment, I would appreciate that you keep this
-  copyright string in the executable of your product.
- */
-
-/*
-   Build a set of tables to decode the provided canonical Huffman code.
-   The code lengths are lens[0..codes-1].  The result starts at *table,
-   whose indices are 0..2^bits-1.  work is a writable array of at least
-   lens shorts, which is used as a work area.  type is the type of code
-   to be generated, CODES, LENS, or DISTS.  On return, zero is success,
-   -1 is an invalid code, and +1 means that ENOUGH isn't enough.  table
-   on return points to the next available entry's address.  bits is the
-   requested root table index bits, and on return it is the actual root
-   table index bits.  It will differ if the request is greater than the
-   longest code or if it is less than the shortest code.
- */
-int inflate_table(type, lens, codes, table, bits, work)
-codetype type;
-unsigned short FAR *lens;
-unsigned codes;
-code FAR * FAR *table;
-unsigned FAR *bits;
-unsigned short FAR *work;
-{
-    unsigned len;               /* a code's length in bits */
-    unsigned sym;               /* index of code symbols */
-    unsigned min, max;          /* minimum and maximum code lengths */
-    unsigned root;              /* number of index bits for root table */
-    unsigned curr;              /* number of index bits for current table */
-    unsigned drop;              /* code bits to drop for sub-table */
-    int left;                   /* number of prefix codes available */
-    unsigned used;              /* code entries in table used */
-    unsigned huff;              /* Huffman code */
-    unsigned incr;              /* for incrementing code, index */
-    unsigned fill;              /* index for replicating entries */
-    unsigned low;               /* low bits for current root entry */
-    unsigned mask;              /* mask for low root bits */
-    code this;                  /* table entry for duplication */
-    code FAR *next;             /* next available space in table */
-    const unsigned short FAR *base;     /* base value table to use */
-    const unsigned short FAR *extra;    /* extra bits table to use */
-    int end;                    /* use base and extra for symbol > end */
-    unsigned short count[MAXBITS+1];    /* number of codes of each length */
-    unsigned short offs[MAXBITS+1];     /* offsets in table for each length */
-    static const unsigned short lbase[31] = { /* Length codes 257..285 base */
-        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
-        35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
-    static const unsigned short lext[31] = { /* Length codes 257..285 extra */
-        16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
-        19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 201, 196};
-    static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
-        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
-        257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
-        8193, 12289, 16385, 24577, 0, 0};
-    static const unsigned short dext[32] = { /* Distance codes 0..29 extra */
-        16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
-        23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
-        28, 28, 29, 29, 64, 64};
-
-    /*
-       Process a set of code lengths to create a canonical Huffman code.  The
-       code lengths are lens[0..codes-1].  Each length corresponds to the
-       symbols 0..codes-1.  The Huffman code is generated by first sorting the
-       symbols by length from short to long, and retaining the symbol order
-       for codes with equal lengths.  Then the code starts with all zero bits
-       for the first code of the shortest length, and the codes are integer
-       increments for the same length, and zeros are appended as the length
-       increases.  For the deflate format, these bits are stored backwards
-       from their more natural integer increment ordering, and so when the
-       decoding tables are built in the large loop below, the integer codes
-       are incremented backwards.
-
-       This routine assumes, but does not check, that all of the entries in
-       lens[] are in the range 0..MAXBITS.  The caller must assure this.
-       1..MAXBITS is interpreted as that code length.  zero means that that
-       symbol does not occur in this code.
-
-       The codes are sorted by computing a count of codes for each length,
-       creating from that a table of starting indices for each length in the
-       sorted table, and then entering the symbols in order in the sorted
-       table.  The sorted table is work[], with that space being provided by
-       the caller.
-
-       The length counts are used for other purposes as well, i.e. finding
-       the minimum and maximum length codes, determining if there are any
-       codes at all, checking for a valid set of lengths, and looking ahead
-       at length counts to determine sub-table sizes when building the
-       decoding tables.
-     */
-
-    /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
-    for (len = 0; len <= MAXBITS; len++)
-        count[len] = 0;
-    for (sym = 0; sym < codes; sym++)
-        count[lens[sym]]++;
-
-    /* bound code lengths, force root to be within code lengths */
-    root = *bits;
-    for (max = MAXBITS; max >= 1; max--)
-        if (count[max] != 0) break;
-    if (root > max) root = max;
-    if (max == 0) {                     /* no symbols to code at all */
-        this.op = (unsigned char)64;    /* invalid code marker */
-        this.bits = (unsigned char)1;
-        this.val = (unsigned short)0;
-        *(*table)++ = this;             /* make a table to force an error */
-        *(*table)++ = this;
-        *bits = 1;
-        return 0;     /* no symbols, but wait for decoding to report error */
-    }
-    for (min = 1; min <= MAXBITS; min++)
-        if (count[min] != 0) break;
-    if (root < min) root = min;
-
-    /* check for an over-subscribed or incomplete set of lengths */
-    left = 1;
-    for (len = 1; len <= MAXBITS; len++) {
-        left <<= 1;
-        left -= count[len];
-        if (left < 0) return -1;        /* over-subscribed */
-    }
-    if (left > 0 && (type == CODES || max != 1))
-        return -1;                      /* incomplete set */
-
-    /* generate offsets into symbol table for each length for sorting */
-    offs[1] = 0;
-    for (len = 1; len < MAXBITS; len++)
-        offs[len + 1] = offs[len] + count[len];
-
-    /* sort symbols by length, by symbol order within each length */
-    for (sym = 0; sym < codes; sym++)
-        if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym;
-
-    /*
-       Create and fill in decoding tables.  In this loop, the table being
-       filled is at next and has curr index bits.  The code being used is huff
-       with length len.  That code is converted to an index by dropping drop
-       bits off of the bottom.  For codes where len is less than drop + curr,
-       those top drop + curr - len bits are incremented through all values to
-       fill the table with replicated entries.
-
-       root is the number of index bits for the root table.  When len exceeds
-       root, sub-tables are created pointed to by the root entry with an index
-       of the low root bits of huff.  This is saved in low to check for when a
-       new sub-table should be started.  drop is zero when the root table is
-       being filled, and drop is root when sub-tables are being filled.
-
-       When a new sub-table is needed, it is necessary to look ahead in the
-       code lengths to determine what size sub-table is needed.  The length
-       counts are used for this, and so count[] is decremented as codes are
-       entered in the tables.
-
-       used keeps track of how many table entries have been allocated from the
-       provided *table space.  It is checked when a LENS table is being made
-       against the space in *table, ENOUGH, minus the maximum space needed by
-       the worst case distance code, MAXD.  This should never happen, but the
-       sufficiency of ENOUGH has not been proven exhaustively, hence the check.
-       This assumes that when type == LENS, bits == 9.
-
-       sym increments through all symbols, and the loop terminates when
-       all codes of length max, i.e. all codes, have been processed.  This
-       routine permits incomplete codes, so another loop after this one fills
-       in the rest of the decoding tables with invalid code markers.
-     */
-
-    /* set up for code type */
-    switch (type) {
-    case CODES:
-        base = extra = work;    /* dummy value--not used */
-        end = 19;
-        break;
-    case LENS:
-        base = lbase;
-        base -= 257;
-        extra = lext;
-        extra -= 257;
-        end = 256;
-        break;
-    default:            /* DISTS */
-        base = dbase;
-        extra = dext;
-        end = -1;
-    }
-
-    /* initialize state for loop */
-    huff = 0;                   /* starting code */
-    sym = 0;                    /* starting code symbol */
-    len = min;                  /* starting code length */
-    next = *table;              /* current table to fill in */
-    curr = root;                /* current table index bits */
-    drop = 0;                   /* current bits to drop from code for index */
-    low = (unsigned)(-1);       /* trigger new sub-table when len > root */
-    used = 1U << root;          /* use root table entries */
-    mask = used - 1;            /* mask for comparing low */
-
-    /* check available table space */
-    if (type == LENS && used >= ENOUGH - MAXD)
-        return 1;
-
-    /* process all codes and make table entries */
-    for (;;) {
-        /* create table entry */
-        this.bits = (unsigned char)(len - drop);
-        if ((int)(work[sym]) < end) {
-            this.op = (unsigned char)0;
-            this.val = work[sym];
-        }
-        else if ((int)(work[sym]) > end) {
-            this.op = (unsigned char)(extra[work[sym]]);
-            this.val = base[work[sym]];
-        }
-        else {
-            this.op = (unsigned char)(32 + 64);         /* end of block */
-            this.val = 0;
-        }
-
-        /* replicate for those indices with low len bits equal to huff */
-        incr = 1U << (len - drop);
-        fill = 1U << curr;
-        min = fill;                 /* save offset to next table */
-        do {
-            fill -= incr;
-            next[(huff >> drop) + fill] = this;
-        } while (fill != 0);
-
-        /* backwards increment the len-bit code huff */
-        incr = 1U << (len - 1);
-        while (huff & incr)
-            incr >>= 1;
-        if (incr != 0) {
-            huff &= incr - 1;
-            huff += incr;
-        }
-        else
-            huff = 0;
-
-        /* go to next symbol, update count, len */
-        sym++;
-        if (--(count[len]) == 0) {
-            if (len == max) break;
-            len = lens[work[sym]];
-        }
-
-        /* create new sub-table if needed */
-        if (len > root && (huff & mask) != low) {
-            /* if first time, transition to sub-tables */
-            if (drop == 0)
-                drop = root;
-
-            /* increment past last table */
-            next += min;            /* here min is 1 << curr */
-
-            /* determine length of next table */
-            curr = len - drop;
-            left = (int)(1 << curr);
-            while (curr + drop < max) {
-                left -= count[curr + drop];
-                if (left <= 0) break;
-                curr++;
-                left <<= 1;
-            }
-
-            /* check for enough space */
-            used += 1U << curr;
-            if (type == LENS && used >= ENOUGH - MAXD)
-                return 1;
-
-            /* point entry in root table to sub-table */
-            low = huff & mask;
-            (*table)[low].op = (unsigned char)curr;
-            (*table)[low].bits = (unsigned char)root;
-            (*table)[low].val = (unsigned short)(next - *table);
-        }
-    }
-
-    /*
-       Fill in rest of table for incomplete codes.  This loop is similar to the
-       loop above in incrementing huff for table indices.  It is assumed that
-       len is equal to curr + drop, so there is no loop needed to increment
-       through high index bits.  When the current sub-table is filled, the loop
-       drops back to the root table to fill in any remaining entries there.
-     */
-    this.op = (unsigned char)64;                /* invalid code marker */
-    this.bits = (unsigned char)(len - drop);
-    this.val = (unsigned short)0;
-    while (huff != 0) {
-        /* when done with sub-table, drop back to root table */
-        if (drop != 0 && (huff & mask) != low) {
-            drop = 0;
-            len = root;
-            next = *table;
-            this.bits = (unsigned char)len;
-        }
-
-        /* put invalid code marker in table */
-        next[huff >> drop] = this;
-
-        /* backwards increment the len-bit code huff */
-        incr = 1U << (len - 1);
-        while (huff & incr)
-            incr >>= 1;
-        if (incr != 0) {
-            huff &= incr - 1;
-            huff += incr;
-        }
-        else
-            huff = 0;
-    }
-
-    /* set return parameters */
-    *table += used;
-    *bits = root;
-    return 0;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/inftrees.h b/components/dfs/filesystems/jffs2/cyg/compress/src/inftrees.h
deleted file mode 100644
index b1104c87e7..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/inftrees.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/* inftrees.h -- header to use inftrees.c
- * Copyright (C) 1995-2005 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* Structure for decoding tables.  Each entry provides either the
-   information needed to do the operation requested by the code that
-   indexed that table entry, or it provides a pointer to another
-   table that indexes more bits of the code.  op indicates whether
-   the entry is a pointer to another table, a literal, a length or
-   distance, an end-of-block, or an invalid code.  For a table
-   pointer, the low four bits of op is the number of index bits of
-   that table.  For a length or distance, the low four bits of op
-   is the number of extra bits to get after the code.  bits is
-   the number of bits in this code or part of the code to drop off
-   of the bit buffer.  val is the actual byte to output in the case
-   of a literal, the base length or distance, or the offset from
-   the current table to the next table.  Each entry is four bytes. */
-typedef struct {
-    unsigned char op;           /* operation, extra bits, table bits */
-    unsigned char bits;         /* bits in this part of the code */
-    unsigned short val;         /* offset in table or code value */
-} code;
-
-/* op values as set by inflate_table():
-    00000000 - literal
-    0000tttt - table link, tttt != 0 is the number of table index bits
-    0001eeee - length or distance, eeee is the number of extra bits
-    01100000 - end of block
-    01000000 - invalid code
- */
-
-/* Maximum size of dynamic tree.  The maximum found in a long but non-
-   exhaustive search was 1444 code structures (852 for length/literals
-   and 592 for distances, the latter actually the result of an
-   exhaustive search).  The true maximum is not known, but the value
-   below is more than safe. */
-#define ENOUGH 2048
-#define MAXD 592
-
-/* Type of code to build for inftable() */
-typedef enum {
-    CODES,
-    LENS,
-    DISTS
-} codetype;
-
-extern int inflate_table OF((codetype type, unsigned short FAR *lens,
-                             unsigned codes, code FAR * FAR *table,
-                             unsigned FAR *bits, unsigned short FAR *work));
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/infutil.c b/components/dfs/filesystems/jffs2/cyg/compress/src/infutil.c
deleted file mode 100644
index 9a076221f2..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/infutil.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* inflate_util.c -- data and routines common to blocks and codes
- * Copyright (C) 1995-2002 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-#include "zutil.h"
-#include "infblock.h"
-#include "inftrees.h"
-#include "infcodes.h"
-#include "infutil.h"
-
-struct inflate_codes_state {int dummy;}; /* for buggy compilers */
-
-/* And'ing with mask[n] masks the lower n bits */
-uInt inflate_mask[17] = {
-    0x0000,
-    0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
-    0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
-};
-
-
-/* copy as much as possible from the sliding window to the output area */
-int inflate_flush(s, z, r)
-inflate_blocks_statef *s;
-z_streamp z;
-int r;
-{
-  uInt n;
-  Bytef *p;
-  Bytef *q;
-
-  /* local copies of source and destination pointers */
-  p = z->next_out;
-  q = s->read;
-
-  /* compute number of bytes to copy as far as end of window */
-  n = (uInt)((q <= s->write ? s->write : s->end) - q);
-  if (n > z->avail_out) n = z->avail_out;
-  if (n && r == Z_BUF_ERROR) r = Z_OK;
-
-  /* update counters */
-  z->avail_out -= n;
-  z->total_out += n;
-
-  /* update check information */
-  if (s->checkfn != Z_NULL)
-    z->adler = s->check = (*s->checkfn)(s->check, q, n);
-
-  /* copy as far as end of window */
-  zmemcpy(p, q, n);
-  p += n;
-  q += n;
-
-  /* see if more to copy at beginning of window */
-  if (q == s->end)
-  {
-    /* wrap pointers */
-    q = s->window;
-    if (s->write == s->end)
-      s->write = s->window;
-
-    /* compute bytes to copy */
-    n = (uInt)(s->write - q);
-    if (n > z->avail_out) n = z->avail_out;
-    if (n && r == Z_BUF_ERROR) r = Z_OK;
-
-    /* update counters */
-    z->avail_out -= n;
-    z->total_out += n;
-
-    /* update check information */
-    if (s->checkfn != Z_NULL)
-      z->adler = s->check = (*s->checkfn)(s->check, q, n);
-
-    /* copy */
-    zmemcpy(p, q, n);
-    p += n;
-    q += n;
-  }
-
-  /* update pointers */
-  z->next_out = p;
-  s->read = q;
-
-  /* done */
-  return r;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/infutil.h b/components/dfs/filesystems/jffs2/cyg/compress/src/infutil.h
deleted file mode 100644
index 4401df82fc..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/infutil.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* infutil.h -- types and macros common to blocks and codes
- * Copyright (C) 1995-2002 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-#ifndef _INFUTIL_H
-#define _INFUTIL_H
-
-typedef enum {
-      TYPE,     /* get type bits (3, including end bit) */
-      LENS,     /* get lengths for stored */
-      STORED,   /* processing stored block */
-      TABLE,    /* get table lengths */
-      BTREE,    /* get bit lengths tree for a dynamic block */
-      DTREE,    /* get length, distance trees for a dynamic block */
-      CODES,    /* processing fixed or dynamic block */
-      DRY,      /* output remaining window bytes */
-      DONE,     /* finished last block, done */
-      BAD}      /* got a data error--stuck here */
-inflate_block_mode;
-
-/* inflate blocks semi-private state */
-struct inflate_blocks_state {
-
-  /* mode */
-  inflate_block_mode  mode;     /* current inflate_block mode */
-
-  /* mode dependent information */
-  union {
-    uInt left;          /* if STORED, bytes left to copy */
-    struct {
-      uInt table;               /* table lengths (14 bits) */
-      uInt index;               /* index into blens (or border) */
-      uIntf *blens;             /* bit lengths of codes */
-      uInt bb;                  /* bit length tree depth */
-      inflate_huft *tb;         /* bit length decoding tree */
-    } trees;            /* if DTREE, decoding info for trees */
-    struct {
-      inflate_codes_statef 
-         *codes;
-    } decode;           /* if CODES, current state */
-  } sub;                /* submode */
-  uInt last;            /* true if this block is the last block */
-
-  /* mode independent information */
-  uInt bitk;            /* bits in bit buffer */
-  uLong bitb;           /* bit buffer */
-  inflate_huft *hufts;  /* single malloc for tree space */
-  Bytef *window;        /* sliding window */
-  Bytef *end;           /* one byte after sliding window */
-  Bytef *read;          /* window read pointer */
-  Bytef *write;         /* window write pointer */
-  check_func checkfn;   /* check function */
-  uLong check;          /* check on output */
-
-};
-
-
-/* defines for inflate input/output */
-/*   update pointers and return */
-#define UPDBITS {s->bitb=b;s->bitk=k;}
-#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;}
-#define UPDOUT {s->write=q;}
-#define UPDATE {UPDBITS UPDIN UPDOUT}
-#define LEAVE {UPDATE return inflate_flush(s,z,r);}
-/*   get bytes and bits */
-#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;}
-#define NEEDBYTE {if(n)r=Z_OK;else LEAVE}
-#define NEXTBYTE (n--,*p++)
-#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}}
-#define DUMPBITS(j) {b>>=(j);k-=(j);}
-/*   output bytes */
-#define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q)
-#define LOADOUT {q=s->write;m=(uInt)WAVAIL;}
-#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}}
-#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT}
-#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;}
-#define OUTBYTE(a) {*q++=(Byte)(a);m--;}
-/*   load local pointers */
-#define LOAD {LOADIN LOADOUT}
-
-/* masks for lower bits (size given to avoid silly warnings with Visual C++) */
-extern uInt inflate_mask[17];
-
-/* copy as much as possible from the sliding window to the output area */
-extern int inflate_flush OF((
-    inflate_blocks_statef *,
-    z_streamp ,
-    int));
-
-struct internal_state      {int dummy;}; /* for buggy compilers */
-
-#endif
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/maketree.c b/components/dfs/filesystems/jffs2/cyg/compress/src/maketree.c
deleted file mode 100644
index a16d4b1460..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/maketree.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/* maketree.c -- make inffixed.h table for decoding fixed codes
- * Copyright (C) 1995-2002 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* This program is included in the distribution for completeness.
-   You do not need to compile or run this program since inffixed.h
-   is already included in the distribution.  To use this program
-   you need to compile zlib with BUILDFIXED defined and then compile
-   and link this program with the zlib library.  Then the output of
-   this program can be piped to inffixed.h. */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include "zutil.h"
-#include "inftrees.h"
-
-/* simplify the use of the inflate_huft type with some defines */
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-/* generate initialization table for an inflate_huft structure array */
-void maketree(uInt b, inflate_huft *t)
-{
-  int i, e;
-
-  i = 0;
-  while (1)
-  {
-    e = t[i].exop;
-    if (e && (e & (16+64)) == 0)        /* table pointer */
-    {
-      fprintf(stderr, "maketree: cannot initialize sub-tables!\n");
-      exit(1);
-    }
-    if (i % 4 == 0)
-      printf("\n   ");
-    printf(" {{{%u,%u}},%u}", t[i].exop, t[i].bits, t[i].base);
-    if (++i == (1<<b))
-      break;
-    putchar(',');
-  }
-  puts("");
-}
-
-/* create the fixed tables in C initialization syntax */
-void main(void)
-{
-  int r;
-  uInt bl, bd;
-  inflate_huft *tl, *td;
-  z_stream z;
-
-  z.zalloc = zcalloc;
-  z.opaque = (voidpf)0;
-  z.zfree = zcfree;
-  r = inflate_trees_fixed(&bl, &bd, &tl, &td, &z);
-  if (r)
-  {
-    fprintf(stderr, "inflate_trees_fixed error %d\n", r);
-    return;
-  }
-  puts("/* inffixed.h -- table for decoding fixed codes");
-  puts(" * Generated automatically by the maketree.c program");
-  puts(" */");
-  puts("");
-  puts("/* WARNING: this file should *not* be used by applications. It is");
-  puts("   part of the implementation of the compression library and is");
-  puts("   subject to change. Applications should only use zlib.h.");
-  puts(" */");
-  puts("");
-  printf("local uInt fixed_bl = %d;\n", bl);
-  printf("local uInt fixed_bd = %d;\n", bd);
-  printf("local inflate_huft fixed_tl[] = {");
-  maketree(bl, tl);
-  puts("  };");
-  printf("local inflate_huft fixed_td[] = {");
-  maketree(bd, td);
-  puts("  };");
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/minigzip.c b/components/dfs/filesystems/jffs2/cyg/compress/src/minigzip.c
deleted file mode 100644
index 4524b96a1d..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/minigzip.c
+++ /dev/null
@@ -1,322 +0,0 @@
-/* minigzip.c -- simulate gzip using the zlib compression library
- * Copyright (C) 1995-2005 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- * minigzip is a minimal implementation of the gzip utility. This is
- * only an example of using zlib and isn't meant to replace the
- * full-featured gzip. No attempt is made to deal with file systems
- * limiting names to 14 or 8+3 characters, etc... Error checking is
- * very limited. So use minigzip only for testing; use gzip for the
- * real thing. On MSDOS, use only on file names without extension
- * or in pipe mode.
- */
-
-/* @(#) $Id$ */
-
-#include <stdio.h>
-#include "zlib.h"
-
-#ifdef STDC
-#  include <string.h>
-#  include <stdlib.h>
-#endif
-
-#ifdef USE_MMAP
-#  include <sys/types.h>
-#  include <sys/mman.h>
-#  include <sys/stat.h>
-#endif
-
-#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
-#  include <fcntl.h>
-#  include <io.h>
-#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-#  define SET_BINARY_MODE(file)
-#endif
-
-#ifdef VMS
-#  define unlink delete
-#  define GZ_SUFFIX "-gz"
-#endif
-#ifdef RISCOS
-#  define unlink remove
-#  define GZ_SUFFIX "-gz"
-#  define fileno(file) file->__file
-#endif
-#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-#  include <unix.h> /* for fileno */
-#endif
-
-#ifndef WIN32 /* unlink already in stdio.h for WIN32 */
-  extern int unlink OF((const char *));
-#endif
-
-#ifndef GZ_SUFFIX
-#  define GZ_SUFFIX ".gz"
-#endif
-#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
-
-#define BUFLEN      16384
-#define MAX_NAME_LEN 1024
-
-#ifdef MAXSEG_64K
-#  define local static
-   /* Needed for systems with limitation on stack size. */
-#else
-#  define local
-#endif
-
-char *prog;
-
-void error            OF((const char *msg));
-void gz_compress      OF((FILE   *in, gzFile out));
-#ifdef USE_MMAP
-int  gz_compress_mmap OF((FILE   *in, gzFile out));
-#endif
-void gz_uncompress    OF((gzFile in, FILE   *out));
-void file_compress    OF((char  *file, char *mode));
-void file_uncompress  OF((char  *file));
-int  main             OF((int argc, char *argv[]));
-
-/* ===========================================================================
- * Display error message and exit
- */
-void error(msg)
-    const char *msg;
-{
-    fprintf(stderr, "%s: %s\n", prog, msg);
-    exit(1);
-}
-
-/* ===========================================================================
- * Compress input to output then close both files.
- */
-
-void gz_compress(in, out)
-    FILE   *in;
-    gzFile out;
-{
-    local char buf[BUFLEN];
-    int len;
-    int err;
-
-#ifdef USE_MMAP
-    /* Try first compressing with mmap. If mmap fails (minigzip used in a
-     * pipe), use the normal fread loop.
-     */
-    if (gz_compress_mmap(in, out) == Z_OK) return;
-#endif
-    for (;;) {
-        len = (int)fread(buf, 1, sizeof(buf), in);
-        if (ferror(in)) {
-            perror("fread");
-            exit(1);
-        }
-        if (len == 0) break;
-
-        if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
-    }
-    fclose(in);
-    if (gzclose(out) != Z_OK) error("failed gzclose");
-}
-
-#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
-
-/* Try compressing the input file at once using mmap. Return Z_OK if
- * if success, Z_ERRNO otherwise.
- */
-int gz_compress_mmap(in, out)
-    FILE   *in;
-    gzFile out;
-{
-    int len;
-    int err;
-    int ifd = fileno(in);
-    caddr_t buf;    /* mmap'ed buffer for the entire input file */
-    off_t buf_len;  /* length of the input file */
-    struct stat sb;
-
-    /* Determine the size of the file, needed for mmap: */
-    if (fstat(ifd, &sb) < 0) return Z_ERRNO;
-    buf_len = sb.st_size;
-    if (buf_len <= 0) return Z_ERRNO;
-
-    /* Now do the actual mmap: */
-    buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
-    if (buf == (caddr_t)(-1)) return Z_ERRNO;
-
-    /* Compress the whole file at once: */
-    len = gzwrite(out, (char *)buf, (unsigned)buf_len);
-
-    if (len != (int)buf_len) error(gzerror(out, &err));
-
-    munmap(buf, buf_len);
-    fclose(in);
-    if (gzclose(out) != Z_OK) error("failed gzclose");
-    return Z_OK;
-}
-#endif /* USE_MMAP */
-
-/* ===========================================================================
- * Uncompress input to output then close both files.
- */
-void gz_uncompress(in, out)
-    gzFile in;
-    FILE   *out;
-{
-    local char buf[BUFLEN];
-    int len;
-    int err;
-
-    for (;;) {
-        len = gzread(in, buf, sizeof(buf));
-        if (len < 0) error (gzerror(in, &err));
-        if (len == 0) break;
-
-        if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
-            error("failed fwrite");
-        }
-    }
-    if (fclose(out)) error("failed fclose");
-
-    if (gzclose(in) != Z_OK) error("failed gzclose");
-}
-
-
-/* ===========================================================================
- * Compress the given file: create a corresponding .gz file and remove the
- * original.
- */
-void file_compress(file, mode)
-    char  *file;
-    char  *mode;
-{
-    local char outfile[MAX_NAME_LEN];
-    FILE  *in;
-    gzFile out;
-
-    strcpy(outfile, file);
-    strcat(outfile, GZ_SUFFIX);
-
-    in = fopen(file, "rb");
-    if (in == NULL) {
-        perror(file);
-        exit(1);
-    }
-    out = gzopen(outfile, mode);
-    if (out == NULL) {
-        fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
-        exit(1);
-    }
-    gz_compress(in, out);
-
-    unlink(file);
-}
-
-
-/* ===========================================================================
- * Uncompress the given file and remove the original.
- */
-void file_uncompress(file)
-    char  *file;
-{
-    local char buf[MAX_NAME_LEN];
-    char *infile, *outfile;
-    FILE  *out;
-    gzFile in;
-    uInt len = (uInt)strlen(file);
-
-    strcpy(buf, file);
-
-    if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
-        infile = file;
-        outfile = buf;
-        outfile[len-3] = '\0';
-    } else {
-        outfile = file;
-        infile = buf;
-        strcat(infile, GZ_SUFFIX);
-    }
-    in = gzopen(infile, "rb");
-    if (in == NULL) {
-        fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
-        exit(1);
-    }
-    out = fopen(outfile, "wb");
-    if (out == NULL) {
-        perror(file);
-        exit(1);
-    }
-
-    gz_uncompress(in, out);
-
-    unlink(infile);
-}
-
-
-/* ===========================================================================
- * Usage:  minigzip [-d] [-f] [-h] [-r] [-1 to -9] [files...]
- *   -d : decompress
- *   -f : compress with Z_FILTERED
- *   -h : compress with Z_HUFFMAN_ONLY
- *   -r : compress with Z_RLE
- *   -1 to -9 : compression level
- */
-
-int main(argc, argv)
-    int argc;
-    char *argv[];
-{
-    int uncompr = 0;
-    gzFile file;
-    char outmode[20];
-
-    strcpy(outmode, "wb6 ");
-
-    prog = argv[0];
-    argc--, argv++;
-
-    while (argc > 0) {
-      if (strcmp(*argv, "-d") == 0)
-        uncompr = 1;
-      else if (strcmp(*argv, "-f") == 0)
-        outmode[3] = 'f';
-      else if (strcmp(*argv, "-h") == 0)
-        outmode[3] = 'h';
-      else if (strcmp(*argv, "-r") == 0)
-        outmode[3] = 'R';
-      else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
-               (*argv)[2] == 0)
-        outmode[2] = (*argv)[1];
-      else
-        break;
-      argc--, argv++;
-    }
-    if (outmode[3] == ' ')
-        outmode[3] = 0;
-    if (argc == 0) {
-        SET_BINARY_MODE(stdin);
-        SET_BINARY_MODE(stdout);
-        if (uncompr) {
-            file = gzdopen(fileno(stdin), "rb");
-            if (file == NULL) error("can't gzdopen stdin");
-            gz_uncompress(file, stdout);
-        } else {
-            file = gzdopen(fileno(stdout), outmode);
-            if (file == NULL) error("can't gzdopen stdout");
-            gz_compress(stdin, file);
-        }
-    } else {
-        do {
-            if (uncompr) {
-                file_uncompress(*argv);
-            } else {
-                file_compress(*argv, outmode);
-            }
-        } while (argv++, --argc);
-    }
-    return 0;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/trees.c b/components/dfs/filesystems/jffs2/cyg/compress/src/trees.c
deleted file mode 100644
index 395e4e1681..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/trees.c
+++ /dev/null
@@ -1,1219 +0,0 @@
-/* trees.c -- output deflated data using Huffman coding
- * Copyright (C) 1995-2005 Jean-loup Gailly
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- *  ALGORITHM
- *
- *      The "deflation" process uses several Huffman trees. The more
- *      common source values are represented by shorter bit sequences.
- *
- *      Each code tree is stored in a compressed form which is itself
- * a Huffman encoding of the lengths of all the code strings (in
- * ascending order by source values).  The actual code strings are
- * reconstructed from the lengths in the inflate process, as described
- * in the deflate specification.
- *
- *  REFERENCES
- *
- *      Deutsch, L.P.,"'Deflate' Compressed Data Format Specification".
- *      Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc
- *
- *      Storer, James A.
- *          Data Compression:  Methods and Theory, pp. 49-50.
- *          Computer Science Press, 1988.  ISBN 0-7167-8156-5.
- *
- *      Sedgewick, R.
- *          Algorithms, p290.
- *          Addison-Wesley, 1983. ISBN 0-201-06672-6.
- */
-
-/* @(#) $Id$ */
-
-/* #define GEN_TREES_H */
-
-#include "deflate.h"
-
-#ifdef DEBUG
-#  include <ctype.h>
-#endif
-
-/* ===========================================================================
- * Constants
- */
-
-#define MAX_BL_BITS 7
-/* Bit length codes must not exceed MAX_BL_BITS bits */
-
-#define END_BLOCK 256
-/* end of block literal code */
-
-#define REP_3_6      16
-/* repeat previous bit length 3-6 times (2 bits of repeat count) */
-
-#define REPZ_3_10    17
-/* repeat a zero length 3-10 times  (3 bits of repeat count) */
-
-#define REPZ_11_138  18
-/* repeat a zero length 11-138 times  (7 bits of repeat count) */
-
-local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */
-   = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
-
-local const int extra_dbits[D_CODES] /* extra bits for each distance code */
-   = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
-
-local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */
-   = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
-
-local const uch bl_order[BL_CODES]
-   = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
-/* The lengths of the bit length codes are sent in order of decreasing
- * probability, to avoid transmitting the lengths for unused bit length codes.
- */
-
-#define Buf_size (8 * 2*sizeof(char))
-/* Number of bits used within bi_buf. (bi_buf might be implemented on
- * more than 16 bits on some systems.)
- */
-
-/* ===========================================================================
- * Local data. These are initialized only once.
- */
-
-#define DIST_CODE_LEN  512 /* see definition of array dist_code below */
-
-#if defined(GEN_TREES_H) || !defined(STDC)
-/* non ANSI compilers may not accept trees.h */
-
-local ct_data static_ltree[L_CODES+2];
-/* The static literal tree. Since the bit lengths are imposed, there is no
- * need for the L_CODES extra codes used during heap construction. However
- * The codes 286 and 287 are needed to build a canonical tree (see _tr_init
- * below).
- */
-
-local ct_data static_dtree[D_CODES];
-/* The static distance tree. (Actually a trivial tree since all codes use
- * 5 bits.)
- */
-
-uch _dist_code[DIST_CODE_LEN];
-/* Distance codes. The first 256 values correspond to the distances
- * 3 .. 258, the last 256 values correspond to the top 8 bits of
- * the 15 bit distances.
- */
-
-uch _length_code[MAX_MATCH-MIN_MATCH+1];
-/* length code for each normalized match length (0 == MIN_MATCH) */
-
-local int base_length[LENGTH_CODES];
-/* First normalized length for each code (0 = MIN_MATCH) */
-
-local int base_dist[D_CODES];
-/* First normalized distance for each code (0 = distance of 1) */
-
-#else
-#  include "trees.h"
-#endif /* GEN_TREES_H */
-
-struct static_tree_desc_s {
-    const ct_data *static_tree;  /* static tree or NULL */
-    const intf *extra_bits;      /* extra bits for each code or NULL */
-    int     extra_base;          /* base index for extra_bits */
-    int     elems;               /* max number of elements in the tree */
-    int     max_length;          /* max bit length for the codes */
-};
-
-local static_tree_desc  static_l_desc =
-{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS};
-
-local static_tree_desc  static_d_desc =
-{static_dtree, extra_dbits, 0,          D_CODES, MAX_BITS};
-
-local static_tree_desc  static_bl_desc =
-{(const ct_data *)0, extra_blbits, 0,   BL_CODES, MAX_BL_BITS};
-
-/* ===========================================================================
- * Local (static) routines in this file.
- */
-
-local void tr_static_init OF((void));
-local void init_block     OF((deflate_state *s));
-local void pqdownheap     OF((deflate_state *s, ct_data *tree, int k));
-local void gen_bitlen     OF((deflate_state *s, tree_desc *desc));
-local void gen_codes      OF((ct_data *tree, int max_code, ushf *bl_count));
-local void build_tree     OF((deflate_state *s, tree_desc *desc));
-local void scan_tree      OF((deflate_state *s, ct_data *tree, int max_code));
-local void send_tree      OF((deflate_state *s, ct_data *tree, int max_code));
-local int  build_bl_tree  OF((deflate_state *s));
-local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes,
-                              int blcodes));
-local void compress_block OF((deflate_state *s, ct_data *ltree,
-                              ct_data *dtree));
-local void set_data_type  OF((deflate_state *s));
-local unsigned bi_reverse OF((unsigned value, int length));
-local void bi_windup      OF((deflate_state *s));
-local void bi_flush       OF((deflate_state *s));
-local void copy_block     OF((deflate_state *s, charf *buf, unsigned len,
-                              int header));
-
-#ifdef GEN_TREES_H
-local void gen_trees_header OF((void));
-#endif
-
-#ifndef DEBUG
-#  define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len)
-   /* Send a code of the given tree. c and tree must not have side effects */
-
-#else /* DEBUG */
-#  define send_code(s, c, tree) \
-     { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \
-       send_bits(s, tree[c].Code, tree[c].Len); }
-#endif
-
-/* ===========================================================================
- * Output a short LSB first on the stream.
- * IN assertion: there is enough room in pendingBuf.
- */
-#define put_short(s, w) { \
-    put_byte(s, (uch)((w) & 0xff)); \
-    put_byte(s, (uch)((ush)(w) >> 8)); \
-}
-
-/* ===========================================================================
- * Send a value on a given number of bits.
- * IN assertion: length <= 16 and value fits in length bits.
- */
-#ifdef DEBUG
-local void send_bits      OF((deflate_state *s, int value, int length));
-
-local void send_bits(s, value, length)
-    deflate_state *s;
-    int value;  /* value to send */
-    int length; /* number of bits */
-{
-    Tracevv((stderr," l %2d v %4x ", length, value));
-    Assert(length > 0 && length <= 15, "invalid length");
-    s->bits_sent += (ulg)length;
-
-    /* If not enough room in bi_buf, use (valid) bits from bi_buf and
-     * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid))
-     * unused bits in value.
-     */
-    if (s->bi_valid > (int)Buf_size - length) {
-        s->bi_buf |= (value << s->bi_valid);
-        put_short(s, s->bi_buf);
-        s->bi_buf = (ush)value >> (Buf_size - s->bi_valid);
-        s->bi_valid += length - Buf_size;
-    } else {
-        s->bi_buf |= value << s->bi_valid;
-        s->bi_valid += length;
-    }
-}
-#else /* !DEBUG */
-
-#define send_bits(s, value, length) \
-{ int len = length;\
-  if (s->bi_valid > (int)Buf_size - len) {\
-    int val = value;\
-    s->bi_buf |= (val << s->bi_valid);\
-    put_short(s, s->bi_buf);\
-    s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\
-    s->bi_valid += len - Buf_size;\
-  } else {\
-    s->bi_buf |= (value) << s->bi_valid;\
-    s->bi_valid += len;\
-  }\
-}
-#endif /* DEBUG */
-
-
-/* the arguments must not have side effects */
-
-/* ===========================================================================
- * Initialize the various 'constant' tables.
- */
-local void tr_static_init()
-{
-#if defined(GEN_TREES_H) || !defined(STDC)
-    static int static_init_done = 0;
-    int n;        /* iterates over tree elements */
-    int bits;     /* bit counter */
-    int length;   /* length value */
-    int code;     /* code value */
-    int dist;     /* distance index */
-    ush bl_count[MAX_BITS+1];
-    /* number of codes at each bit length for an optimal tree */
-
-    if (static_init_done) return;
-
-    /* For some embedded targets, global variables are not initialized: */
-    static_l_desc.static_tree = static_ltree;
-    static_l_desc.extra_bits = extra_lbits;
-    static_d_desc.static_tree = static_dtree;
-    static_d_desc.extra_bits = extra_dbits;
-    static_bl_desc.extra_bits = extra_blbits;
-
-    /* Initialize the mapping length (0..255) -> length code (0..28) */
-    length = 0;
-    for (code = 0; code < LENGTH_CODES-1; code++) {
-        base_length[code] = length;
-        for (n = 0; n < (1<<extra_lbits[code]); n++) {
-            _length_code[length++] = (uch)code;
-        }
-    }
-    Assert (length == 256, "tr_static_init: length != 256");
-    /* Note that the length 255 (match length 258) can be represented
-     * in two different ways: code 284 + 5 bits or code 285, so we
-     * overwrite length_code[255] to use the best encoding:
-     */
-    _length_code[length-1] = (uch)code;
-
-    /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
-    dist = 0;
-    for (code = 0 ; code < 16; code++) {
-        base_dist[code] = dist;
-        for (n = 0; n < (1<<extra_dbits[code]); n++) {
-            _dist_code[dist++] = (uch)code;
-        }
-    }
-    Assert (dist == 256, "tr_static_init: dist != 256");
-    dist >>= 7; /* from now on, all distances are divided by 128 */
-    for ( ; code < D_CODES; code++) {
-        base_dist[code] = dist << 7;
-        for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
-            _dist_code[256 + dist++] = (uch)code;
-        }
-    }
-    Assert (dist == 256, "tr_static_init: 256+dist != 512");
-
-    /* Construct the codes of the static literal tree */
-    for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
-    n = 0;
-    while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++;
-    while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++;
-    while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++;
-    while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++;
-    /* Codes 286 and 287 do not exist, but we must include them in the
-     * tree construction to get a canonical Huffman tree (longest code
-     * all ones)
-     */
-    gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count);
-
-    /* The static distance tree is trivial: */
-    for (n = 0; n < D_CODES; n++) {
-        static_dtree[n].Len = 5;
-        static_dtree[n].Code = bi_reverse((unsigned)n, 5);
-    }
-    static_init_done = 1;
-
-#  ifdef GEN_TREES_H
-    gen_trees_header();
-#  endif
-#endif /* defined(GEN_TREES_H) || !defined(STDC) */
-}
-
-/* ===========================================================================
- * Genererate the file trees.h describing the static trees.
- */
-#ifdef GEN_TREES_H
-#  ifndef DEBUG
-#    include <stdio.h>
-#  endif
-
-#  define SEPARATOR(i, last, width) \
-      ((i) == (last)? "\n};\n\n" :    \
-       ((i) % (width) == (width)-1 ? ",\n" : ", "))
-
-void gen_trees_header()
-{
-    FILE *header = fopen("trees.h", "w");
-    int i;
-
-    Assert (header != NULL, "Can't open trees.h");
-    fprintf(header,
-            "/* header created automatically with -DGEN_TREES_H */\n\n");
-
-    fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n");
-    for (i = 0; i < L_CODES+2; i++) {
-        fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code,
-                static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5));
-    }
-
-    fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n");
-    for (i = 0; i < D_CODES; i++) {
-        fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code,
-                static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
-    }
-
-    fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n");
-    for (i = 0; i < DIST_CODE_LEN; i++) {
-        fprintf(header, "%2u%s", _dist_code[i],
-                SEPARATOR(i, DIST_CODE_LEN-1, 20));
-    }
-
-    fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
-    for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
-        fprintf(header, "%2u%s", _length_code[i],
-                SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
-    }
-
-    fprintf(header, "local const int base_length[LENGTH_CODES] = {\n");
-    for (i = 0; i < LENGTH_CODES; i++) {
-        fprintf(header, "%1u%s", base_length[i],
-                SEPARATOR(i, LENGTH_CODES-1, 20));
-    }
-
-    fprintf(header, "local const int base_dist[D_CODES] = {\n");
-    for (i = 0; i < D_CODES; i++) {
-        fprintf(header, "%5u%s", base_dist[i],
-                SEPARATOR(i, D_CODES-1, 10));
-    }
-
-    fclose(header);
-}
-#endif /* GEN_TREES_H */
-
-/* ===========================================================================
- * Initialize the tree data structures for a new zlib stream.
- */
-void _tr_init(s)
-    deflate_state *s;
-{
-    tr_static_init();
-
-    s->l_desc.dyn_tree = s->dyn_ltree;
-    s->l_desc.stat_desc = &static_l_desc;
-
-    s->d_desc.dyn_tree = s->dyn_dtree;
-    s->d_desc.stat_desc = &static_d_desc;
-
-    s->bl_desc.dyn_tree = s->bl_tree;
-    s->bl_desc.stat_desc = &static_bl_desc;
-
-    s->bi_buf = 0;
-    s->bi_valid = 0;
-    s->last_eob_len = 8; /* enough lookahead for inflate */
-#ifdef DEBUG
-    s->compressed_len = 0L;
-    s->bits_sent = 0L;
-#endif
-
-    /* Initialize the first block of the first file: */
-    init_block(s);
-}
-
-/* ===========================================================================
- * Initialize a new block.
- */
-local void init_block(s)
-    deflate_state *s;
-{
-    int n; /* iterates over tree elements */
-
-    /* Initialize the trees. */
-    for (n = 0; n < L_CODES;  n++) s->dyn_ltree[n].Freq = 0;
-    for (n = 0; n < D_CODES;  n++) s->dyn_dtree[n].Freq = 0;
-    for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0;
-
-    s->dyn_ltree[END_BLOCK].Freq = 1;
-    s->opt_len = s->static_len = 0L;
-    s->last_lit = s->matches = 0;
-}
-
-#define SMALLEST 1
-/* Index within the heap array of least frequent node in the Huffman tree */
-
-
-/* ===========================================================================
- * Remove the smallest element from the heap and recreate the heap with
- * one less element. Updates heap and heap_len.
- */
-#define pqremove(s, tree, top) \
-{\
-    top = s->heap[SMALLEST]; \
-    s->heap[SMALLEST] = s->heap[s->heap_len--]; \
-    pqdownheap(s, tree, SMALLEST); \
-}
-
-/* ===========================================================================
- * Compares to subtrees, using the tree depth as tie breaker when
- * the subtrees have equal frequency. This minimizes the worst case length.
- */
-#define smaller(tree, n, m, depth) \
-   (tree[n].Freq < tree[m].Freq || \
-   (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
-
-/* ===========================================================================
- * Restore the heap property by moving down the tree starting at node k,
- * exchanging a node with the smallest of its two sons if necessary, stopping
- * when the heap property is re-established (each father smaller than its
- * two sons).
- */
-local void pqdownheap(s, tree, k)
-    deflate_state *s;
-    ct_data *tree;  /* the tree to restore */
-    int k;               /* node to move down */
-{
-    int v = s->heap[k];
-    int j = k << 1;  /* left son of k */
-    while (j <= s->heap_len) {
-        /* Set j to the smallest of the two sons: */
-        if (j < s->heap_len &&
-            smaller(tree, s->heap[j+1], s->heap[j], s->depth)) {
-            j++;
-        }
-        /* Exit if v is smaller than both sons */
-        if (smaller(tree, v, s->heap[j], s->depth)) break;
-
-        /* Exchange v with the smallest son */
-        s->heap[k] = s->heap[j];  k = j;
-
-        /* And continue down the tree, setting j to the left son of k */
-        j <<= 1;
-    }
-    s->heap[k] = v;
-}
-
-/* ===========================================================================
- * Compute the optimal bit lengths for a tree and update the total bit length
- * for the current block.
- * IN assertion: the fields freq and dad are set, heap[heap_max] and
- *    above are the tree nodes sorted by increasing frequency.
- * OUT assertions: the field len is set to the optimal bit length, the
- *     array bl_count contains the frequencies for each bit length.
- *     The length opt_len is updated; static_len is also updated if stree is
- *     not null.
- */
-local void gen_bitlen(s, desc)
-    deflate_state *s;
-    tree_desc *desc;    /* the tree descriptor */
-{
-    ct_data *tree        = desc->dyn_tree;
-    int max_code         = desc->max_code;
-    const ct_data *stree = desc->stat_desc->static_tree;
-    const intf *extra    = desc->stat_desc->extra_bits;
-    int base             = desc->stat_desc->extra_base;
-    int max_length       = desc->stat_desc->max_length;
-    int h;              /* heap index */
-    int n, m;           /* iterate over the tree elements */
-    int bits;           /* bit length */
-    int xbits;          /* extra bits */
-    ush f;              /* frequency */
-    int overflow = 0;   /* number of elements with bit length too large */
-
-    for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0;
-
-    /* In a first pass, compute the optimal bit lengths (which may
-     * overflow in the case of the bit length tree).
-     */
-    tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */
-
-    for (h = s->heap_max+1; h < HEAP_SIZE; h++) {
-        n = s->heap[h];
-        bits = tree[tree[n].Dad].Len + 1;
-        if (bits > max_length) bits = max_length, overflow++;
-        tree[n].Len = (ush)bits;
-        /* We overwrite tree[n].Dad which is no longer needed */
-
-        if (n > max_code) continue; /* not a leaf node */
-
-        s->bl_count[bits]++;
-        xbits = 0;
-        if (n >= base) xbits = extra[n-base];
-        f = tree[n].Freq;
-        s->opt_len += (ulg)f * (bits + xbits);
-        if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits);
-    }
-    if (overflow == 0) return;
-
-    Trace((stderr,"\nbit length overflow\n"));
-    /* This happens for example on obj2 and pic of the Calgary corpus */
-
-    /* Find the first bit length which could increase: */
-    do {
-        bits = max_length-1;
-        while (s->bl_count[bits] == 0) bits--;
-        s->bl_count[bits]--;      /* move one leaf down the tree */
-        s->bl_count[bits+1] += 2; /* move one overflow item as its brother */
-        s->bl_count[max_length]--;
-        /* The brother of the overflow item also moves one step up,
-         * but this does not affect bl_count[max_length]
-         */
-        overflow -= 2;
-    } while (overflow > 0);
-
-    /* Now recompute all bit lengths, scanning in increasing frequency.
-     * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
-     * lengths instead of fixing only the wrong ones. This idea is taken
-     * from 'ar' written by Haruhiko Okumura.)
-     */
-    for (bits = max_length; bits != 0; bits--) {
-        n = s->bl_count[bits];
-        while (n != 0) {
-            m = s->heap[--h];
-            if (m > max_code) continue;
-            if ((unsigned) tree[m].Len != (unsigned) bits) {
-                Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
-                s->opt_len += ((long)bits - (long)tree[m].Len)
-                              *(long)tree[m].Freq;
-                tree[m].Len = (ush)bits;
-            }
-            n--;
-        }
-    }
-}
-
-/* ===========================================================================
- * Generate the codes for a given tree and bit counts (which need not be
- * optimal).
- * IN assertion: the array bl_count contains the bit length statistics for
- * the given tree and the field len is set for all tree elements.
- * OUT assertion: the field code is set for all tree elements of non
- *     zero code length.
- */
-local void gen_codes (tree, max_code, bl_count)
-    ct_data *tree;             /* the tree to decorate */
-    int max_code;              /* largest code with non zero frequency */
-    ushf *bl_count;            /* number of codes at each bit length */
-{
-    ush next_code[MAX_BITS+1]; /* next code value for each bit length */
-    ush code = 0;              /* running code value */
-    int bits;                  /* bit index */
-    int n;                     /* code index */
-
-    /* The distribution counts are first used to generate the code values
-     * without bit reversal.
-     */
-    for (bits = 1; bits <= MAX_BITS; bits++) {
-        next_code[bits] = code = (code + bl_count[bits-1]) << 1;
-    }
-    /* Check that the bit counts in bl_count are consistent. The last code
-     * must be all ones.
-     */
-    Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
-            "inconsistent bit counts");
-    Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
-
-    for (n = 0;  n <= max_code; n++) {
-        int len = tree[n].Len;
-        if (len == 0) continue;
-        /* Now reverse the bits */
-        tree[n].Code = bi_reverse(next_code[len]++, len);
-
-        Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
-             n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
-    }
-}
-
-/* ===========================================================================
- * Construct one Huffman tree and assigns the code bit strings and lengths.
- * Update the total bit length for the current block.
- * IN assertion: the field freq is set for all tree elements.
- * OUT assertions: the fields len and code are set to the optimal bit length
- *     and corresponding code. The length opt_len is updated; static_len is
- *     also updated if stree is not null. The field max_code is set.
- */
-local void build_tree(s, desc)
-    deflate_state *s;
-    tree_desc *desc; /* the tree descriptor */
-{
-    ct_data *tree         = desc->dyn_tree;
-    const ct_data *stree  = desc->stat_desc->static_tree;
-    int elems             = desc->stat_desc->elems;
-    int n, m;          /* iterate over heap elements */
-    int max_code = -1; /* largest code with non zero frequency */
-    int node;          /* new node being created */
-
-    /* Construct the initial heap, with least frequent element in
-     * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
-     * heap[0] is not used.
-     */
-    s->heap_len = 0, s->heap_max = HEAP_SIZE;
-
-    for (n = 0; n < elems; n++) {
-        if (tree[n].Freq != 0) {
-            s->heap[++(s->heap_len)] = max_code = n;
-            s->depth[n] = 0;
-        } else {
-            tree[n].Len = 0;
-        }
-    }
-
-    /* The pkzip format requires that at least one distance code exists,
-     * and that at least one bit should be sent even if there is only one
-     * possible code. So to avoid special checks later on we force at least
-     * two codes of non zero frequency.
-     */
-    while (s->heap_len < 2) {
-        node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0);
-        tree[node].Freq = 1;
-        s->depth[node] = 0;
-        s->opt_len--; if (stree) s->static_len -= stree[node].Len;
-        /* node is 0 or 1 so it does not have extra bits */
-    }
-    desc->max_code = max_code;
-
-    /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
-     * establish sub-heaps of increasing lengths:
-     */
-    for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n);
-
-    /* Construct the Huffman tree by repeatedly combining the least two
-     * frequent nodes.
-     */
-    node = elems;              /* next internal node of the tree */
-    do {
-        pqremove(s, tree, n);  /* n = node of least frequency */
-        m = s->heap[SMALLEST]; /* m = node of next least frequency */
-
-        s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */
-        s->heap[--(s->heap_max)] = m;
-
-        /* Create a new node father of n and m */
-        tree[node].Freq = tree[n].Freq + tree[m].Freq;
-        s->depth[node] = (uch)((s->depth[n] >= s->depth[m] ?
-                                s->depth[n] : s->depth[m]) + 1);
-        tree[n].Dad = tree[m].Dad = (ush)node;
-#ifdef DUMP_BL_TREE
-        if (tree == s->bl_tree) {
-            fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)",
-                    node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq);
-        }
-#endif
-        /* and insert the new node in the heap */
-        s->heap[SMALLEST] = node++;
-        pqdownheap(s, tree, SMALLEST);
-
-    } while (s->heap_len >= 2);
-
-    s->heap[--(s->heap_max)] = s->heap[SMALLEST];
-
-    /* At this point, the fields freq and dad are set. We can now
-     * generate the bit lengths.
-     */
-    gen_bitlen(s, (tree_desc *)desc);
-
-    /* The field len is now set, we can generate the bit codes */
-    gen_codes ((ct_data *)tree, max_code, s->bl_count);
-}
-
-/* ===========================================================================
- * Scan a literal or distance tree to determine the frequencies of the codes
- * in the bit length tree.
- */
-local void scan_tree (s, tree, max_code)
-    deflate_state *s;
-    ct_data *tree;   /* the tree to be scanned */
-    int max_code;    /* and its largest code of non zero frequency */
-{
-    int n;                     /* iterates over all tree elements */
-    int prevlen = -1;          /* last emitted length */
-    int curlen;                /* length of current code */
-    int nextlen = tree[0].Len; /* length of next code */
-    int count = 0;             /* repeat count of the current code */
-    int max_count = 7;         /* max repeat count */
-    int min_count = 4;         /* min repeat count */
-
-    if (nextlen == 0) max_count = 138, min_count = 3;
-    tree[max_code+1].Len = (ush)0xffff; /* guard */
-
-    for (n = 0; n <= max_code; n++) {
-        curlen = nextlen; nextlen = tree[n+1].Len;
-        if (++count < max_count && curlen == nextlen) {
-            continue;
-        } else if (count < min_count) {
-            s->bl_tree[curlen].Freq += count;
-        } else if (curlen != 0) {
-            if (curlen != prevlen) s->bl_tree[curlen].Freq++;
-            s->bl_tree[REP_3_6].Freq++;
-        } else if (count <= 10) {
-            s->bl_tree[REPZ_3_10].Freq++;
-        } else {
-            s->bl_tree[REPZ_11_138].Freq++;
-        }
-        count = 0; prevlen = curlen;
-        if (nextlen == 0) {
-            max_count = 138, min_count = 3;
-        } else if (curlen == nextlen) {
-            max_count = 6, min_count = 3;
-        } else {
-            max_count = 7, min_count = 4;
-        }
-    }
-}
-
-/* ===========================================================================
- * Send a literal or distance tree in compressed form, using the codes in
- * bl_tree.
- */
-local void send_tree (s, tree, max_code)
-    deflate_state *s;
-    ct_data *tree; /* the tree to be scanned */
-    int max_code;       /* and its largest code of non zero frequency */
-{
-    int n;                     /* iterates over all tree elements */
-    int prevlen = -1;          /* last emitted length */
-    int curlen;                /* length of current code */
-    int nextlen = tree[0].Len; /* length of next code */
-    int count = 0;             /* repeat count of the current code */
-    int max_count = 7;         /* max repeat count */
-    int min_count = 4;         /* min repeat count */
-
-    /* tree[max_code+1].Len = -1; */  /* guard already set */
-    if (nextlen == 0) max_count = 138, min_count = 3;
-
-    for (n = 0; n <= max_code; n++) {
-        curlen = nextlen; nextlen = tree[n+1].Len;
-        if (++count < max_count && curlen == nextlen) {
-            continue;
-        } else if (count < min_count) {
-            do { send_code(s, curlen, s->bl_tree); } while (--count != 0);
-
-        } else if (curlen != 0) {
-            if (curlen != prevlen) {
-                send_code(s, curlen, s->bl_tree); count--;
-            }
-            Assert(count >= 3 && count <= 6, " 3_6?");
-            send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2);
-
-        } else if (count <= 10) {
-            send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3);
-
-        } else {
-            send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7);
-        }
-        count = 0; prevlen = curlen;
-        if (nextlen == 0) {
-            max_count = 138, min_count = 3;
-        } else if (curlen == nextlen) {
-            max_count = 6, min_count = 3;
-        } else {
-            max_count = 7, min_count = 4;
-        }
-    }
-}
-
-/* ===========================================================================
- * Construct the Huffman tree for the bit lengths and return the index in
- * bl_order of the last bit length code to send.
- */
-local int build_bl_tree(s)
-    deflate_state *s;
-{
-    int max_blindex;  /* index of last bit length code of non zero freq */
-
-    /* Determine the bit length frequencies for literal and distance trees */
-    scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code);
-    scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code);
-
-    /* Build the bit length tree: */
-    build_tree(s, (tree_desc *)(&(s->bl_desc)));
-    /* opt_len now includes the length of the tree representations, except
-     * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
-     */
-
-    /* Determine the number of bit length codes to send. The pkzip format
-     * requires that at least 4 bit length codes be sent. (appnote.txt says
-     * 3 but the actual value used is 4.)
-     */
-    for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
-        if (s->bl_tree[bl_order[max_blindex]].Len != 0) break;
-    }
-    /* Update opt_len to include the bit length tree and counts */
-    s->opt_len += 3*(max_blindex+1) + 5+5+4;
-    Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
-            s->opt_len, s->static_len));
-
-    return max_blindex;
-}
-
-/* ===========================================================================
- * Send the header for a block using dynamic Huffman trees: the counts, the
- * lengths of the bit length codes, the literal tree and the distance tree.
- * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
- */
-local void send_all_trees(s, lcodes, dcodes, blcodes)
-    deflate_state *s;
-    int lcodes, dcodes, blcodes; /* number of codes for each tree */
-{
-    int rank;                    /* index in bl_order */
-
-    Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
-    Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
-            "too many codes");
-    Tracev((stderr, "\nbl counts: "));
-    send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */
-    send_bits(s, dcodes-1,   5);
-    send_bits(s, blcodes-4,  4); /* not -3 as stated in appnote.txt */
-    for (rank = 0; rank < blcodes; rank++) {
-        Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
-        send_bits(s, s->bl_tree[bl_order[rank]].Len, 3);
-    }
-    Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent));
-
-    send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */
-    Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent));
-
-    send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */
-    Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent));
-}
-
-/* ===========================================================================
- * Send a stored block
- */
-void _tr_stored_block(s, buf, stored_len, eof)
-    deflate_state *s;
-    charf *buf;       /* input block */
-    ulg stored_len;   /* length of input block */
-    int eof;          /* true if this is the last block for a file */
-{
-    send_bits(s, (STORED_BLOCK<<1)+eof, 3);  /* send block type */
-#ifdef DEBUG
-    s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
-    s->compressed_len += (stored_len + 4) << 3;
-#endif
-    copy_block(s, buf, (unsigned)stored_len, 1); /* with header */
-}
-
-/* ===========================================================================
- * Send one empty static block to give enough lookahead for inflate.
- * This takes 10 bits, of which 7 may remain in the bit buffer.
- * The current inflate code requires 9 bits of lookahead. If the
- * last two codes for the previous block (real code plus EOB) were coded
- * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode
- * the last real code. In this case we send two empty static blocks instead
- * of one. (There are no problems if the previous block is stored or fixed.)
- * To simplify the code, we assume the worst case of last real code encoded
- * on one bit only.
- */
-void _tr_align(s)
-    deflate_state *s;
-{
-    send_bits(s, STATIC_TREES<<1, 3);
-    send_code(s, END_BLOCK, static_ltree);
-#ifdef DEBUG
-    s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
-#endif
-    bi_flush(s);
-    /* Of the 10 bits for the empty block, we have already sent
-     * (10 - bi_valid) bits. The lookahead for the last real code (before
-     * the EOB of the previous block) was thus at least one plus the length
-     * of the EOB plus what we have just sent of the empty static block.
-     */
-    if (1 + s->last_eob_len + 10 - s->bi_valid < 9) {
-        send_bits(s, STATIC_TREES<<1, 3);
-        send_code(s, END_BLOCK, static_ltree);
-#ifdef DEBUG
-        s->compressed_len += 10L;
-#endif
-        bi_flush(s);
-    }
-    s->last_eob_len = 7;
-}
-
-/* ===========================================================================
- * Determine the best encoding for the current block: dynamic trees, static
- * trees or store, and output the encoded block to the zip file.
- */
-void _tr_flush_block(s, buf, stored_len, eof)
-    deflate_state *s;
-    charf *buf;       /* input block, or NULL if too old */
-    ulg stored_len;   /* length of input block */
-    int eof;          /* true if this is the last block for a file */
-{
-    ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
-    int max_blindex = 0;  /* index of last bit length code of non zero freq */
-
-    /* Build the Huffman trees unless a stored block is forced */
-    if (s->level > 0) {
-
-        /* Check if the file is binary or text */
-        if (stored_len > 0 && s->strm->data_type == Z_UNKNOWN)
-            set_data_type(s);
-
-        /* Construct the literal and distance trees */
-        build_tree(s, (tree_desc *)(&(s->l_desc)));
-        Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
-                s->static_len));
-
-        build_tree(s, (tree_desc *)(&(s->d_desc)));
-        Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
-                s->static_len));
-        /* At this point, opt_len and static_len are the total bit lengths of
-         * the compressed block data, excluding the tree representations.
-         */
-
-        /* Build the bit length tree for the above two trees, and get the index
-         * in bl_order of the last bit length code to send.
-         */
-        max_blindex = build_bl_tree(s);
-
-        /* Determine the best encoding. Compute the block lengths in bytes. */
-        opt_lenb = (s->opt_len+3+7)>>3;
-        static_lenb = (s->static_len+3+7)>>3;
-
-        Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
-                opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
-                s->last_lit));
-
-        if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
-
-    } else {
-        Assert(buf != (char*)0, "lost buf");
-        opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
-    }
-
-#ifdef FORCE_STORED
-    if (buf != (char*)0) { /* force stored block */
-#else
-    if (stored_len+4 <= opt_lenb && buf != (char*)0) {
-                       /* 4: two words for the lengths */
-#endif
-        /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
-         * Otherwise we can't have processed more than WSIZE input bytes since
-         * the last block flush, because compression would have been
-         * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
-         * transform a block into a stored block.
-         */
-        _tr_stored_block(s, buf, stored_len, eof);
-
-#ifdef FORCE_STATIC
-    } else if (static_lenb >= 0) { /* force static trees */
-#else
-    } else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) {
-#endif
-        send_bits(s, (STATIC_TREES<<1)+eof, 3);
-        compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree);
-#ifdef DEBUG
-        s->compressed_len += 3 + s->static_len;
-#endif
-    } else {
-        send_bits(s, (DYN_TREES<<1)+eof, 3);
-        send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
-                       max_blindex+1);
-        compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree);
-#ifdef DEBUG
-        s->compressed_len += 3 + s->opt_len;
-#endif
-    }
-    Assert (s->compressed_len == s->bits_sent, "bad compressed size");
-    /* The above check is made mod 2^32, for files larger than 512 MB
-     * and uLong implemented on 32 bits.
-     */
-    init_block(s);
-
-    if (eof) {
-        bi_windup(s);
-#ifdef DEBUG
-        s->compressed_len += 7;  /* align on byte boundary */
-#endif
-    }
-    Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
-           s->compressed_len-7*eof));
-}
-
-/* ===========================================================================
- * Save the match info and tally the frequency counts. Return true if
- * the current block must be flushed.
- */
-int _tr_tally (s, dist, lc)
-    deflate_state *s;
-    unsigned dist;  /* distance of matched string */
-    unsigned lc;    /* match length-MIN_MATCH or unmatched char (if dist==0) */
-{
-    s->d_buf[s->last_lit] = (ush)dist;
-    s->l_buf[s->last_lit++] = (uch)lc;
-    if (dist == 0) {
-        /* lc is the unmatched char */
-        s->dyn_ltree[lc].Freq++;
-    } else {
-        s->matches++;
-        /* Here, lc is the match length - MIN_MATCH */
-        dist--;             /* dist = match distance - 1 */
-        Assert((ush)dist < (ush)MAX_DIST(s) &&
-               (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
-               (ush)d_code(dist) < (ush)D_CODES,  "_tr_tally: bad match");
-
-        s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++;
-        s->dyn_dtree[d_code(dist)].Freq++;
-    }
-
-#ifdef TRUNCATE_BLOCK
-    /* Try to guess if it is profitable to stop the current block here */
-    if ((s->last_lit & 0x1fff) == 0 && s->level > 2) {
-        /* Compute an upper bound for the compressed length */
-        ulg out_length = (ulg)s->last_lit*8L;
-        ulg in_length = (ulg)((long)s->strstart - s->block_start);
-        int dcode;
-        for (dcode = 0; dcode < D_CODES; dcode++) {
-            out_length += (ulg)s->dyn_dtree[dcode].Freq *
-                (5L+extra_dbits[dcode]);
-        }
-        out_length >>= 3;
-        Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ",
-               s->last_lit, in_length, out_length,
-               100L - out_length*100L/in_length));
-        if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1;
-    }
-#endif
-    return (s->last_lit == s->lit_bufsize-1);
-    /* We avoid equality with lit_bufsize because of wraparound at 64K
-     * on 16 bit machines and because stored blocks are restricted to
-     * 64K-1 bytes.
-     */
-}
-
-/* ===========================================================================
- * Send the block data compressed using the given Huffman trees
- */
-local void compress_block(s, ltree, dtree)
-    deflate_state *s;
-    ct_data *ltree; /* literal tree */
-    ct_data *dtree; /* distance tree */
-{
-    unsigned dist;      /* distance of matched string */
-    int lc;             /* match length or unmatched char (if dist == 0) */
-    unsigned lx = 0;    /* running index in l_buf */
-    unsigned code;      /* the code to send */
-    int extra;          /* number of extra bits to send */
-
-    if (s->last_lit != 0) do {
-        dist = s->d_buf[lx];
-        lc = s->l_buf[lx++];
-        if (dist == 0) {
-            send_code(s, lc, ltree); /* send a literal byte */
-            Tracecv(isgraph(lc), (stderr," '%c' ", lc));
-        } else {
-            /* Here, lc is the match length - MIN_MATCH */
-            code = _length_code[lc];
-            send_code(s, code+LITERALS+1, ltree); /* send the length code */
-            extra = extra_lbits[code];
-            if (extra != 0) {
-                lc -= base_length[code];
-                send_bits(s, lc, extra);       /* send the extra length bits */
-            }
-            dist--; /* dist is now the match distance - 1 */
-            code = d_code(dist);
-            Assert (code < D_CODES, "bad d_code");
-
-            send_code(s, code, dtree);       /* send the distance code */
-            extra = extra_dbits[code];
-            if (extra != 0) {
-                dist -= base_dist[code];
-                send_bits(s, dist, extra);   /* send the extra distance bits */
-            }
-        } /* literal or match pair ? */
-
-        /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
-        Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx,
-               "pendingBuf overflow");
-
-    } while (lx < s->last_lit);
-
-    send_code(s, END_BLOCK, ltree);
-    s->last_eob_len = ltree[END_BLOCK].Len;
-}
-
-/* ===========================================================================
- * Set the data type to BINARY or TEXT, using a crude approximation:
- * set it to Z_TEXT if all symbols are either printable characters (33 to 255)
- * or white spaces (9 to 13, or 32); or set it to Z_BINARY otherwise.
- * IN assertion: the fields Freq of dyn_ltree are set.
- */
-local void set_data_type(s)
-    deflate_state *s;
-{
-    int n;
-
-    for (n = 0; n < 9; n++)
-        if (s->dyn_ltree[n].Freq != 0)
-            break;
-    if (n == 9)
-        for (n = 14; n < 32; n++)
-            if (s->dyn_ltree[n].Freq != 0)
-                break;
-    s->strm->data_type = (n == 32) ? Z_TEXT : Z_BINARY;
-}
-
-/* ===========================================================================
- * Reverse the first len bits of a code, using straightforward code (a faster
- * method would use a table)
- * IN assertion: 1 <= len <= 15
- */
-local unsigned bi_reverse(code, len)
-    unsigned code; /* the value to invert */
-    int len;       /* its bit length */
-{
-    register unsigned res = 0;
-    do {
-        res |= code & 1;
-        code >>= 1, res <<= 1;
-    } while (--len > 0);
-    return res >> 1;
-}
-
-/* ===========================================================================
- * Flush the bit buffer, keeping at most 7 bits in it.
- */
-local void bi_flush(s)
-    deflate_state *s;
-{
-    if (s->bi_valid == 16) {
-        put_short(s, s->bi_buf);
-        s->bi_buf = 0;
-        s->bi_valid = 0;
-    } else if (s->bi_valid >= 8) {
-        put_byte(s, (Byte)s->bi_buf);
-        s->bi_buf >>= 8;
-        s->bi_valid -= 8;
-    }
-}
-
-/* ===========================================================================
- * Flush the bit buffer and align the output on a byte boundary
- */
-local void bi_windup(s)
-    deflate_state *s;
-{
-    if (s->bi_valid > 8) {
-        put_short(s, s->bi_buf);
-    } else if (s->bi_valid > 0) {
-        put_byte(s, (Byte)s->bi_buf);
-    }
-    s->bi_buf = 0;
-    s->bi_valid = 0;
-#ifdef DEBUG
-    s->bits_sent = (s->bits_sent+7) & ~7;
-#endif
-}
-
-/* ===========================================================================
- * Copy a stored block, storing first the length and its
- * one's complement if requested.
- */
-local void copy_block(s, buf, len, header)
-    deflate_state *s;
-    charf    *buf;    /* the input data */
-    unsigned len;     /* its length */
-    int      header;  /* true if block header must be written */
-{
-    bi_windup(s);        /* align on byte boundary */
-    s->last_eob_len = 8; /* enough lookahead for inflate */
-
-    if (header) {
-        put_short(s, (ush)len);
-        put_short(s, (ush)~len);
-#ifdef DEBUG
-        s->bits_sent += 2*16;
-#endif
-    }
-#ifdef DEBUG
-    s->bits_sent += (ulg)len<<3;
-#endif
-    while (len--) {
-        put_byte(s, *buf++);
-    }
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/trees.h b/components/dfs/filesystems/jffs2/cyg/compress/src/trees.h
deleted file mode 100644
index 72facf900f..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/trees.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/* header created automatically with -DGEN_TREES_H */
-
-local const ct_data static_ltree[L_CODES+2] = {
-{{ 12},{  8}}, {{140},{  8}}, {{ 76},{  8}}, {{204},{  8}}, {{ 44},{  8}},
-{{172},{  8}}, {{108},{  8}}, {{236},{  8}}, {{ 28},{  8}}, {{156},{  8}},
-{{ 92},{  8}}, {{220},{  8}}, {{ 60},{  8}}, {{188},{  8}}, {{124},{  8}},
-{{252},{  8}}, {{  2},{  8}}, {{130},{  8}}, {{ 66},{  8}}, {{194},{  8}},
-{{ 34},{  8}}, {{162},{  8}}, {{ 98},{  8}}, {{226},{  8}}, {{ 18},{  8}},
-{{146},{  8}}, {{ 82},{  8}}, {{210},{  8}}, {{ 50},{  8}}, {{178},{  8}},
-{{114},{  8}}, {{242},{  8}}, {{ 10},{  8}}, {{138},{  8}}, {{ 74},{  8}},
-{{202},{  8}}, {{ 42},{  8}}, {{170},{  8}}, {{106},{  8}}, {{234},{  8}},
-{{ 26},{  8}}, {{154},{  8}}, {{ 90},{  8}}, {{218},{  8}}, {{ 58},{  8}},
-{{186},{  8}}, {{122},{  8}}, {{250},{  8}}, {{  6},{  8}}, {{134},{  8}},
-{{ 70},{  8}}, {{198},{  8}}, {{ 38},{  8}}, {{166},{  8}}, {{102},{  8}},
-{{230},{  8}}, {{ 22},{  8}}, {{150},{  8}}, {{ 86},{  8}}, {{214},{  8}},
-{{ 54},{  8}}, {{182},{  8}}, {{118},{  8}}, {{246},{  8}}, {{ 14},{  8}},
-{{142},{  8}}, {{ 78},{  8}}, {{206},{  8}}, {{ 46},{  8}}, {{174},{  8}},
-{{110},{  8}}, {{238},{  8}}, {{ 30},{  8}}, {{158},{  8}}, {{ 94},{  8}},
-{{222},{  8}}, {{ 62},{  8}}, {{190},{  8}}, {{126},{  8}}, {{254},{  8}},
-{{  1},{  8}}, {{129},{  8}}, {{ 65},{  8}}, {{193},{  8}}, {{ 33},{  8}},
-{{161},{  8}}, {{ 97},{  8}}, {{225},{  8}}, {{ 17},{  8}}, {{145},{  8}},
-{{ 81},{  8}}, {{209},{  8}}, {{ 49},{  8}}, {{177},{  8}}, {{113},{  8}},
-{{241},{  8}}, {{  9},{  8}}, {{137},{  8}}, {{ 73},{  8}}, {{201},{  8}},
-{{ 41},{  8}}, {{169},{  8}}, {{105},{  8}}, {{233},{  8}}, {{ 25},{  8}},
-{{153},{  8}}, {{ 89},{  8}}, {{217},{  8}}, {{ 57},{  8}}, {{185},{  8}},
-{{121},{  8}}, {{249},{  8}}, {{  5},{  8}}, {{133},{  8}}, {{ 69},{  8}},
-{{197},{  8}}, {{ 37},{  8}}, {{165},{  8}}, {{101},{  8}}, {{229},{  8}},
-{{ 21},{  8}}, {{149},{  8}}, {{ 85},{  8}}, {{213},{  8}}, {{ 53},{  8}},
-{{181},{  8}}, {{117},{  8}}, {{245},{  8}}, {{ 13},{  8}}, {{141},{  8}},
-{{ 77},{  8}}, {{205},{  8}}, {{ 45},{  8}}, {{173},{  8}}, {{109},{  8}},
-{{237},{  8}}, {{ 29},{  8}}, {{157},{  8}}, {{ 93},{  8}}, {{221},{  8}},
-{{ 61},{  8}}, {{189},{  8}}, {{125},{  8}}, {{253},{  8}}, {{ 19},{  9}},
-{{275},{  9}}, {{147},{  9}}, {{403},{  9}}, {{ 83},{  9}}, {{339},{  9}},
-{{211},{  9}}, {{467},{  9}}, {{ 51},{  9}}, {{307},{  9}}, {{179},{  9}},
-{{435},{  9}}, {{115},{  9}}, {{371},{  9}}, {{243},{  9}}, {{499},{  9}},
-{{ 11},{  9}}, {{267},{  9}}, {{139},{  9}}, {{395},{  9}}, {{ 75},{  9}},
-{{331},{  9}}, {{203},{  9}}, {{459},{  9}}, {{ 43},{  9}}, {{299},{  9}},
-{{171},{  9}}, {{427},{  9}}, {{107},{  9}}, {{363},{  9}}, {{235},{  9}},
-{{491},{  9}}, {{ 27},{  9}}, {{283},{  9}}, {{155},{  9}}, {{411},{  9}},
-{{ 91},{  9}}, {{347},{  9}}, {{219},{  9}}, {{475},{  9}}, {{ 59},{  9}},
-{{315},{  9}}, {{187},{  9}}, {{443},{  9}}, {{123},{  9}}, {{379},{  9}},
-{{251},{  9}}, {{507},{  9}}, {{  7},{  9}}, {{263},{  9}}, {{135},{  9}},
-{{391},{  9}}, {{ 71},{  9}}, {{327},{  9}}, {{199},{  9}}, {{455},{  9}},
-{{ 39},{  9}}, {{295},{  9}}, {{167},{  9}}, {{423},{  9}}, {{103},{  9}},
-{{359},{  9}}, {{231},{  9}}, {{487},{  9}}, {{ 23},{  9}}, {{279},{  9}},
-{{151},{  9}}, {{407},{  9}}, {{ 87},{  9}}, {{343},{  9}}, {{215},{  9}},
-{{471},{  9}}, {{ 55},{  9}}, {{311},{  9}}, {{183},{  9}}, {{439},{  9}},
-{{119},{  9}}, {{375},{  9}}, {{247},{  9}}, {{503},{  9}}, {{ 15},{  9}},
-{{271},{  9}}, {{143},{  9}}, {{399},{  9}}, {{ 79},{  9}}, {{335},{  9}},
-{{207},{  9}}, {{463},{  9}}, {{ 47},{  9}}, {{303},{  9}}, {{175},{  9}},
-{{431},{  9}}, {{111},{  9}}, {{367},{  9}}, {{239},{  9}}, {{495},{  9}},
-{{ 31},{  9}}, {{287},{  9}}, {{159},{  9}}, {{415},{  9}}, {{ 95},{  9}},
-{{351},{  9}}, {{223},{  9}}, {{479},{  9}}, {{ 63},{  9}}, {{319},{  9}},
-{{191},{  9}}, {{447},{  9}}, {{127},{  9}}, {{383},{  9}}, {{255},{  9}},
-{{511},{  9}}, {{  0},{  7}}, {{ 64},{  7}}, {{ 32},{  7}}, {{ 96},{  7}},
-{{ 16},{  7}}, {{ 80},{  7}}, {{ 48},{  7}}, {{112},{  7}}, {{  8},{  7}},
-{{ 72},{  7}}, {{ 40},{  7}}, {{104},{  7}}, {{ 24},{  7}}, {{ 88},{  7}},
-{{ 56},{  7}}, {{120},{  7}}, {{  4},{  7}}, {{ 68},{  7}}, {{ 36},{  7}},
-{{100},{  7}}, {{ 20},{  7}}, {{ 84},{  7}}, {{ 52},{  7}}, {{116},{  7}},
-{{  3},{  8}}, {{131},{  8}}, {{ 67},{  8}}, {{195},{  8}}, {{ 35},{  8}},
-{{163},{  8}}, {{ 99},{  8}}, {{227},{  8}}
-};
-
-local const ct_data static_dtree[D_CODES] = {
-{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}},
-{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}},
-{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}},
-{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}},
-{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}},
-{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}}
-};
-
-const uch _dist_code[DIST_CODE_LEN] = {
- 0,  1,  2,  3,  4,  4,  5,  5,  6,  6,  6,  6,  7,  7,  7,  7,  8,  8,  8,  8,
- 8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9, 10, 10, 10, 10, 10, 10, 10, 10,
-10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13,
-13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15,
-15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,  0,  0, 16, 17,
-18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22,
-23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
-24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
-26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
-26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27,
-27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
-28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
-28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
-28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
-29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
-29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
-29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
-};
-
-const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {
- 0,  1,  2,  3,  4,  5,  6,  7,  8,  8,  9,  9, 10, 10, 11, 11, 12, 12, 12, 12,
-13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
-17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
-19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
-21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22,
-22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23,
-23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
-24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
-25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
-25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26,
-26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
-26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28
-};
-
-local const int base_length[LENGTH_CODES] = {
-0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56,
-64, 80, 96, 112, 128, 160, 192, 224, 0
-};
-
-local const int base_dist[D_CODES] = {
-    0,     1,     2,     3,     4,     6,     8,    12,    16,    24,
-   32,    48,    64,    96,   128,   192,   256,   384,   512,   768,
- 1024,  1536,  2048,  3072,  4096,  6144,  8192, 12288, 16384, 24576
-};
-
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/uncompr.c b/components/dfs/filesystems/jffs2/cyg/compress/src/uncompr.c
deleted file mode 100644
index 52040203bc..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/uncompr.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/* uncompr.c -- decompress a memory buffer
- * Copyright (C) 1995-2003 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#define ZLIB_INTERNAL
-#ifdef __ECOS__
-#include <cyg/compress/zlib.h>
-#else
-#include "zlib.h"
-#endif // __ECOS__
-
-/* ===========================================================================
-     Decompresses the source buffer into the destination buffer.  sourceLen is
-   the byte length of the source buffer. Upon entry, destLen is the total
-   size of the destination buffer, which must be large enough to hold the
-   entire uncompressed data. (The size of the uncompressed data must have
-   been saved previously by the compressor and transmitted to the decompressor
-   by some mechanism outside the scope of this compression library.)
-   Upon exit, destLen is the actual size of the compressed buffer.
-     This function can be used to decompress a whole file at once if the
-   input file is mmap'ed.
-
-     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_BUF_ERROR if there was not enough room in the output
-   buffer, or Z_DATA_ERROR if the input data was corrupted.
-*/
-int ZEXPORT uncompress (dest, destLen, source, sourceLen)
-    Bytef *dest;
-    uLongf *destLen;
-    const Bytef *source;
-    uLong sourceLen;
-{
-    z_stream stream;
-    int err;
-
-    stream.next_in = (Bytef*)source;
-    stream.avail_in = (uInt)sourceLen;
-    /* Check for source > 64K on 16-bit machine: */
-    if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
-
-    stream.next_out = dest;
-    stream.avail_out = (uInt)*destLen;
-    if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
-
-    stream.zalloc = (alloc_func)0;
-    stream.zfree = (free_func)0;
-
-    err = inflateInit(&stream);
-    if (err != Z_OK) return err;
-
-    err = inflate(&stream, Z_FINISH);
-    if (err != Z_STREAM_END) {
-        inflateEnd(&stream);
-        if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
-            return Z_DATA_ERROR;
-        return err;
-    }
-    *destLen = stream.total_out;
-
-    err = inflateEnd(&stream);
-    return err;
-}
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/zlib.3 b/components/dfs/filesystems/jffs2/cyg/compress/src/zlib.3
deleted file mode 100644
index 90b8162870..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/zlib.3
+++ /dev/null
@@ -1,159 +0,0 @@
-.TH ZLIB 3 "18 July 2005"
-.SH NAME
-zlib \- compression/decompression library
-.SH SYNOPSIS
-[see
-.I zlib.h
-for full description]
-.SH DESCRIPTION
-The
-.I zlib
-library is a general purpose data compression library.
-The code is thread safe.
-It provides in-memory compression and decompression functions,
-including integrity checks of the uncompressed data.
-This version of the library supports only one compression method (deflation)
-but other algorithms will be added later
-and will have the same stream interface.
-.LP
-Compression can be done in a single step if the buffers are large enough
-(for example if an input file is mmap'ed),
-or can be done by repeated calls of the compression function.
-In the latter case,
-the application must provide more input and/or consume the output
-(providing more output space) before each call.
-.LP
-The library also supports reading and writing files in
-.IR gzip (1)
-(.gz) format
-with an interface similar to that of stdio.
-.LP
-The library does not install any signal handler.
-The decoder checks the consistency of the compressed data,
-so the library should never crash even in case of corrupted input.
-.LP
-All functions of the compression library are documented in the file
-.IR zlib.h .
-The distribution source includes examples of use of the library
-in the files
-.I example.c
-and
-.IR minigzip.c .
-.LP
-Changes to this version are documented in the file
-.I ChangeLog
-that accompanies the source,
-and are concerned primarily with bug fixes and portability enhancements.
-.LP
-A Java implementation of
-.I zlib
-is available in the Java Development Kit 1.1:
-.IP
-http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
-.LP
-A Perl interface to
-.IR zlib ,
-written by Paul Marquess (pmqs@cpan.org),
-is available at CPAN (Comprehensive Perl Archive Network) sites,
-including:
-.IP
-http://www.cpan.org/modules/by-module/Compress/
-.LP
-A Python interface to
-.IR zlib ,
-written by A.M. Kuchling (amk@magnet.com),
-is available in Python 1.5 and later versions:
-.IP
-http://www.python.org/doc/lib/module-zlib.html
-.LP
-A
-.I zlib
-binding for
-.IR tcl (1),
-written by Andreas Kupries (a.kupries@westend.com),
-is availlable at:
-.IP
-http://www.westend.com/~kupries/doc/trf/man/man.html
-.LP
-An experimental package to read and write files in .zip format,
-written on top of
-.I zlib
-by Gilles Vollant (info@winimage.com),
-is available at:
-.IP
-http://www.winimage.com/zLibDll/unzip.html
-and also in the
-.I contrib/minizip
-directory of the main
-.I zlib
-web site.
-.SH "SEE ALSO"
-The
-.I zlib
-web site can be found at either of these locations:
-.IP
-http://www.zlib.org
-.br
-http://www.gzip.org/zlib/
-.LP
-The data format used by the zlib library is described by RFC
-(Request for Comments) 1950 to 1952 in the files:
-.IP
-http://www.ietf.org/rfc/rfc1950.txt (concerning zlib format)
-.br
-http://www.ietf.org/rfc/rfc1951.txt (concerning deflate format)
-.br
-http://www.ietf.org/rfc/rfc1952.txt (concerning gzip format)
-.LP
-These documents are also available in other formats from:
-.IP
-ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
-.LP
-Mark Nelson (markn@ieee.org) wrote an article about
-.I zlib
-for the Jan. 1997 issue of  Dr. Dobb's Journal;
-a copy of the article is available at:
-.IP
-http://dogma.net/markn/articles/zlibtool/zlibtool.htm
-.SH "REPORTING PROBLEMS"
-Before reporting a problem,
-please check the
-.I zlib
-web site to verify that you have the latest version of
-.IR zlib ;
-otherwise,
-obtain the latest version and see if the problem still exists.
-Please read the
-.I zlib
-FAQ at:
-.IP
-http://www.gzip.org/zlib/zlib_faq.html
-.LP
-before asking for help.
-Send questions and/or comments to zlib@gzip.org,
-or (for the Windows DLL version) to Gilles Vollant (info@winimage.com).
-.SH AUTHORS
-Version 1.2.3
-Copyright (C) 1995-2005 Jean-loup Gailly (jloup@gzip.org)
-and Mark Adler (madler@alumni.caltech.edu).
-.LP
-This software is provided "as-is,"
-without any express or implied warranty.
-In no event will the authors be held liable for any damages
-arising from the use of this software.
-See the distribution directory with respect to requirements
-governing redistribution.
-The deflate format used by
-.I zlib
-was defined by Phil Katz.
-The deflate and
-.I zlib
-specifications were written by L. Peter Deutsch.
-Thanks to all the people who reported problems and suggested various
-improvements in
-.IR zlib ;
-who are too numerous to cite here.
-.LP
-UNIX manual page by R. P. C. Rodgers,
-U.S. National Library of Medicine (rodgers@nlm.nih.gov).
-.\" end of man page
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/zutil.c b/components/dfs/filesystems/jffs2/cyg/compress/src/zutil.c
deleted file mode 100644
index d55f5948a3..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/zutil.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/* zutil.c -- target dependent utility functions for the compression library
- * Copyright (C) 1995-2005 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#include "zutil.h"
-
-#ifndef NO_DUMMY_DECL
-struct internal_state      {int dummy;}; /* for buggy compilers */
-#endif
-
-const char * const z_errmsg[10] = {
-"need dictionary",     /* Z_NEED_DICT       2  */
-"stream end",          /* Z_STREAM_END      1  */
-"",                    /* Z_OK              0  */
-"file error",          /* Z_ERRNO         (-1) */
-"stream error",        /* Z_STREAM_ERROR  (-2) */
-"data error",          /* Z_DATA_ERROR    (-3) */
-"insufficient memory", /* Z_MEM_ERROR     (-4) */
-"buffer error",        /* Z_BUF_ERROR     (-5) */
-"incompatible version",/* Z_VERSION_ERROR (-6) */
-""};
-
-
-const char * ZEXPORT zlibVersion()
-{
-    return ZLIB_VERSION;
-}
-
-uLong ZEXPORT zlibCompileFlags()
-{
-    uLong flags;
-
-    flags = 0;
-    switch (sizeof(uInt)) {
-    case 2:     break;
-    case 4:     flags += 1;     break;
-    case 8:     flags += 2;     break;
-    default:    flags += 3;
-    }
-    switch (sizeof(uLong)) {
-    case 2:     break;
-    case 4:     flags += 1 << 2;        break;
-    case 8:     flags += 2 << 2;        break;
-    default:    flags += 3 << 2;
-    }
-    switch (sizeof(voidpf)) {
-    case 2:     break;
-    case 4:     flags += 1 << 4;        break;
-    case 8:     flags += 2 << 4;        break;
-    default:    flags += 3 << 4;
-    }
-    switch (sizeof(z_off_t)) {
-    case 2:     break;
-    case 4:     flags += 1 << 6;        break;
-    case 8:     flags += 2 << 6;        break;
-    default:    flags += 3 << 6;
-    }
-#ifdef DEBUG
-    flags += 1 << 8;
-#endif
-#if defined(ASMV) || defined(ASMINF)
-    flags += 1 << 9;
-#endif
-#ifdef ZLIB_WINAPI
-    flags += 1 << 10;
-#endif
-#ifdef BUILDFIXED
-    flags += 1 << 12;
-#endif
-#ifdef DYNAMIC_CRC_TABLE
-    flags += 1 << 13;
-#endif
-#ifdef NO_GZCOMPRESS
-    flags += 1L << 16;
-#endif
-#ifdef NO_GZIP
-    flags += 1L << 17;
-#endif
-#ifdef PKZIP_BUG_WORKAROUND
-    flags += 1L << 20;
-#endif
-#ifdef FASTEST
-    flags += 1L << 21;
-#endif
-#ifdef STDC
-#  ifdef NO_vsnprintf
-        flags += 1L << 25;
-#    ifdef HAS_vsprintf_void
-        flags += 1L << 26;
-#    endif
-#  else
-#    ifdef HAS_vsnprintf_void
-        flags += 1L << 26;
-#    endif
-#  endif
-#else
-        flags += 1L << 24;
-#  ifdef NO_snprintf
-        flags += 1L << 25;
-#    ifdef HAS_sprintf_void
-        flags += 1L << 26;
-#    endif
-#  else
-#    ifdef HAS_snprintf_void
-        flags += 1L << 26;
-#    endif
-#  endif
-#endif
-    return flags;
-}
-
-#ifdef DEBUG
-
-#  ifndef verbose
-#    define verbose 0
-#  endif
-int z_verbose = verbose;
-
-void z_error (m)
-    char *m;
-{
-    fprintf(stderr, "%s\n", m);
-    exit(1);
-}
-#endif
-
-/* exported to allow conversion of error code to string for compress() and
- * uncompress()
- */
-const char * ZEXPORT zError(err)
-    int err;
-{
-    return ERR_MSG(err);
-}
-
-#if defined(_WIN32_WCE)
-    /* The Microsoft C Run-Time Library for Windows CE doesn't have
-     * errno.  We define it as a global variable to simplify porting.
-     * Its value is always 0 and should not be used.
-     */
-    int errno = 0;
-#endif
-
-#ifndef HAVE_MEMCPY
-
-void zmemcpy(dest, source, len)
-    Bytef* dest;
-    const Bytef* source;
-    uInt  len;
-{
-    if (len == 0) return;
-    do {
-        *dest++ = *source++; /* ??? to be unrolled */
-    } while (--len != 0);
-}
-
-int zmemcmp(s1, s2, len)
-    const Bytef* s1;
-    const Bytef* s2;
-    uInt  len;
-{
-    uInt j;
-
-    for (j = 0; j < len; j++) {
-        if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;
-    }
-    return 0;
-}
-
-void zmemzero(dest, len)
-    Bytef* dest;
-    uInt  len;
-{
-    if (len == 0) return;
-    do {
-        *dest++ = 0;  /* ??? to be unrolled */
-    } while (--len != 0);
-}
-#endif
-
-
-#ifdef SYS16BIT
-
-#ifdef __TURBOC__
-/* Turbo C in 16-bit mode */
-
-#  define MY_ZCALLOC
-
-/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
- * and farmalloc(64K) returns a pointer with an offset of 8, so we
- * must fix the pointer. Warning: the pointer must be put back to its
- * original form in order to free it, use zcfree().
- */
-
-#define MAX_PTR 10
-/* 10*64K = 640K */
-
-local int next_ptr = 0;
-
-typedef struct ptr_table_s {
-    voidpf org_ptr;
-    voidpf new_ptr;
-} ptr_table;
-
-local ptr_table table[MAX_PTR];
-/* This table is used to remember the original form of pointers
- * to large buffers (64K). Such pointers are normalized with a zero offset.
- * Since MSDOS is not a preemptive multitasking OS, this table is not
- * protected from concurrent access. This hack doesn't work anyway on
- * a protected system like OS/2. Use Microsoft C instead.
- */
-
-voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
-{
-    voidpf buf = opaque; /* just to make some compilers happy */
-    ulg bsize = (ulg)items*size;
-
-    /* If we allocate less than 65520 bytes, we assume that farmalloc
-     * will return a usable pointer which doesn't have to be normalized.
-     */
-    if (bsize < 65520L) {
-        buf = farmalloc(bsize);
-        if (*(ush*)&buf != 0) return buf;
-    } else {
-        buf = farmalloc(bsize + 16L);
-    }
-    if (buf == NULL || next_ptr >= MAX_PTR) return NULL;
-    table[next_ptr].org_ptr = buf;
-
-    /* Normalize the pointer to seg:0 */
-    *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
-    *(ush*)&buf = 0;
-    table[next_ptr++].new_ptr = buf;
-    return buf;
-}
-
-void  zcfree (voidpf opaque, voidpf ptr)
-{
-    int n;
-    if (*(ush*)&ptr != 0) { /* object < 64K */
-        farfree(ptr);
-        return;
-    }
-    /* Find the original pointer */
-    for (n = 0; n < next_ptr; n++) {
-        if (ptr != table[n].new_ptr) continue;
-
-        farfree(table[n].org_ptr);
-        while (++n < next_ptr) {
-            table[n-1] = table[n];
-        }
-        next_ptr--;
-        return;
-    }
-    ptr = opaque; /* just to make some compilers happy */
-    Assert(0, "zcfree: ptr not found");
-}
-
-#endif /* __TURBOC__ */
-
-
-#ifdef M_I86
-/* Microsoft C in 16-bit mode */
-
-#  define MY_ZCALLOC
-
-#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
-#  define _halloc  halloc
-#  define _hfree   hfree
-#endif
-
-voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
-{
-    if (opaque) opaque = 0; /* to make compiler happy */
-    return _halloc((long)items, size);
-}
-
-void  zcfree (voidpf opaque, voidpf ptr)
-{
-    if (opaque) opaque = 0; /* to make compiler happy */
-    _hfree(ptr);
-}
-
-#endif /* M_I86 */
-
-#endif /* SYS16BIT */
-
-
-#ifndef MY_ZCALLOC /* Any system without a special alloc function */
-
-#ifndef STDC
-extern voidp  malloc OF((uInt size));
-extern voidp  calloc OF((uInt items, uInt size));
-extern void   free   OF((voidpf ptr));
-#endif
-
-voidpf zcalloc (opaque, items, size)
-    voidpf opaque;
-    unsigned items;
-    unsigned size;
-{
-    if (opaque) items += size - size; /* make compiler happy */
-    return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
-                              (voidpf)calloc(items, size);
-}
-
-void  zcfree (opaque, ptr)
-    voidpf opaque;
-    voidpf ptr;
-{
-    free(ptr);
-    if (opaque) return; /* make compiler happy */
-}
-
-#endif /* MY_ZCALLOC */
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/src/zutil.h b/components/dfs/filesystems/jffs2/cyg/compress/src/zutil.h
deleted file mode 100644
index 013754a1f7..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/src/zutil.h
+++ /dev/null
@@ -1,276 +0,0 @@
-/* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995-2005 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* @(#) $Id$ */
-
-#ifndef ZUTIL_H
-#define ZUTIL_H
-
-#define ZLIB_INTERNAL
-#ifdef __ECOS__
-#include <cyg/compress/zlib.h>
-#include <cyg/crc/crc.h>
-#undef  crc32
-#define crc32 cyg_ether_crc32_accumulate
-#else
-#include "zlib.h"
-#endif // __ECOS__
-
-#ifdef STDC
-#  ifndef _WIN32_WCE
-#    include <stddef.h>
-#  endif
-#  include <string.h>
-#  include <stdlib.h>
-#endif
-#ifdef NO_ERRNO_H
-#   ifdef _WIN32_WCE
-      /* The Microsoft C Run-Time Library for Windows CE doesn't have
-       * errno.  We define it as a global variable to simplify porting.
-       * Its value is always 0 and should not be used.  We rename it to
-       * avoid conflict with other libraries that use the same workaround.
-       */
-#     define errno z_errno
-#   endif
-    extern int errno;
-#else
-#  ifndef _WIN32_WCE
-#    include <errno.h>
-#  endif
-#endif
-
-#ifndef local
-#  define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-typedef unsigned char  uch;
-typedef uch FAR uchf;
-typedef unsigned short ush;
-typedef ush FAR ushf;
-typedef unsigned long  ulg;
-
-extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
-/* (size given to avoid silly warnings with Visual C++) */
-
-#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
-
-#define ERR_RETURN(strm,err) \
-  return (strm->msg = (char*)ERR_MSG(err), (err))
-/* To be used only when the state is known to be valid */
-
-        /* common constants */
-
-#ifndef DEF_WBITS
-#  define DEF_WBITS MAX_WBITS
-#endif
-/* default windowBits for decompression. MAX_WBITS is for compression only */
-
-#if MAX_MEM_LEVEL >= 8
-#  define DEF_MEM_LEVEL 8
-#else
-#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
-#endif
-/* default memLevel */
-
-#define STORED_BLOCK 0
-#define STATIC_TREES 1
-#define DYN_TREES    2
-/* The three kinds of block type */
-
-#define MIN_MATCH  3
-#define MAX_MATCH  258
-/* The minimum and maximum match lengths */
-
-#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
-
-        /* target dependencies */
-
-#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
-#  define OS_CODE  0x00
-#  if defined(__TURBOC__) || defined(__BORLANDC__)
-#    if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
-       /* Allow compilation with ANSI keywords only enabled */
-       void _Cdecl farfree( void *block );
-       void *_Cdecl farmalloc( unsigned long nbytes );
-#    else
-#      include <alloc.h>
-#    endif
-#  else /* MSC or DJGPP */
-#    include <malloc.h>
-#  endif
-#endif
-
-#ifdef AMIGA
-#  define OS_CODE  0x01
-#endif
-
-#if defined(VAXC) || defined(VMS)
-#  define OS_CODE  0x02
-#  define F_OPEN(name, mode) \
-     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
-#endif
-
-#if defined(ATARI) || defined(atarist)
-#  define OS_CODE  0x05
-#endif
-
-#ifdef OS2
-#  define OS_CODE  0x06
-#  ifdef M_I86
-     #include <malloc.h>
-#  endif
-#endif
-
-#if defined(MACOS) || defined(TARGET_OS_MAC)
-#  define OS_CODE  0x07
-#  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-#    include <unix.h> /* for fdopen */
-#  else
-#    ifndef fdopen
-#      define fdopen(fd,mode) NULL /* No fdopen() */
-#    endif
-#  endif
-#endif
-
-#ifdef TOPS20
-#  define OS_CODE  0x0a
-#endif
-
-#ifdef WIN32
-#  ifndef __CYGWIN__  /* Cygwin is Unix, not Win32 */
-#    define OS_CODE  0x0b
-#  endif
-#endif
-
-#ifdef __50SERIES /* Prime/PRIMOS */
-#  define OS_CODE  0x0f
-#endif
-
-#if defined(_BEOS_) || defined(RISCOS)
-#  define fdopen(fd,mode) NULL /* No fdopen() */
-#endif
-
-#if (defined(_MSC_VER) && (_MSC_VER > 600))
-#  if defined(_WIN32_WCE)
-#    define fdopen(fd,mode) NULL /* No fdopen() */
-#    ifndef _PTRDIFF_T_DEFINED
-       typedef int ptrdiff_t;
-#      define _PTRDIFF_T_DEFINED
-#    endif
-#  else
-#    define fdopen(fd,type)  _fdopen(fd,type)
-#  endif
-#endif
-
-        /* common defaults */
-
-#ifndef OS_CODE
-#  define OS_CODE  0x03  /* assume Unix */
-#endif
-
-#ifndef F_OPEN
-#  define F_OPEN(name, mode) fopen((name), (mode))
-#endif
-
-         /* functions */
-
-#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
-#  ifndef HAVE_VSNPRINTF
-#    define HAVE_VSNPRINTF
-#  endif
-#endif
-#if defined(__CYGWIN__)
-#  ifndef HAVE_VSNPRINTF
-#    define HAVE_VSNPRINTF
-#  endif
-#endif
-#ifndef HAVE_VSNPRINTF
-#  ifdef MSDOS
-     /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
-        but for now we just assume it doesn't. */
-#    define NO_vsnprintf
-#  endif
-#  ifdef __TURBOC__
-#    define NO_vsnprintf
-#  endif
-#  ifdef WIN32
-     /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
-#    if !defined(vsnprintf) && !defined(NO_vsnprintf)
-#      define vsnprintf _vsnprintf
-#    endif
-#  endif
-#  ifdef __SASC
-#    define NO_vsnprintf
-#  endif
-#endif
-#ifdef VMS
-#  define NO_vsnprintf
-#endif
-
-#if defined(pyr)
-#  define NO_MEMCPY
-#endif
-#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
- /* Use our own functions for small and medium model with MSC <= 5.0.
-  * You may have to use the same strategy for Borland C (untested).
-  * The __SC__ check is for Symantec.
-  */
-#  define NO_MEMCPY
-#endif
-#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
-#  define HAVE_MEMCPY
-#endif
-#ifdef HAVE_MEMCPY
-#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
-#    define zmemcpy _fmemcpy
-#    define zmemcmp _fmemcmp
-#    define zmemzero(dest, len) _fmemset(dest, 0, len)
-#  else
-#    define zmemcpy memcpy
-#    define zmemcmp memcmp
-#    define zmemzero(dest, len) memset(dest, 0, len)
-#  endif
-#else
-   extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
-   extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
-   extern void zmemzero OF((Bytef* dest, uInt len));
-#endif
-
-/* Diagnostic functions */
-#ifdef DEBUG
-#  include <stdio.h>
-   extern int z_verbose;
-   extern void z_error    OF((char *m));
-#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
-#  define Trace(x) {if (z_verbose>=0) fprintf x ;}
-#  define Tracev(x) {if (z_verbose>0) fprintf x ;}
-#  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-
-voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
-void   zcfree  OF((voidpf opaque, voidpf ptr));
-
-#define ZALLOC(strm, items, size) \
-           (*((strm)->zalloc))((strm)->opaque, (items), (size))
-#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
-#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
-
-#endif /* ZUTIL_H */
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/tests/zlib1.c b/components/dfs/filesystems/jffs2/cyg/compress/tests/zlib1.c
deleted file mode 100644
index 22b2d397b5..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/tests/zlib1.c
+++ /dev/null
@@ -1,232 +0,0 @@
-//=================================================================
-//
-//        zlib1.c
-//
-//        zlib compression/decompression test 1
-//
-//==========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):     jskov
-// Contributors:  jskov
-// Date:          2001-03-09
-// Description:   Tests zlib compress/decompress functionality.
-//####DESCRIPTIONEND####
-
-
-#include <cyg/hal/hal_arch.h>           // CYGNUM_HAL_STACK_SIZE_TYPICAL
-
-#include <cyg/kernel/kapi.h>
-
-#include <cyg/infra/testcase.h>
-#include <cyg/infra/diag.h>
-
-#ifdef CYGFUN_KERNEL_API_C
-
-#include <cyg/compress/zlib.h>
-#include <stdlib.h>
-
-#define NTHREADS 1
-#define STACKSIZE (CYGNUM_HAL_STACK_SIZE_TYPICAL > 8192 ? CYGNUM_HAL_STACK_SIZE_TYPICAL : 8192)
-
-static cyg_handle_t thread[NTHREADS];
-
-static cyg_thread thread_obj[NTHREADS];
-static char stack[NTHREADS][STACKSIZE];
-
-static char license_txt[] =
-"Red Hat eCos Public License v1.1\n"
-"\n"
-"\n"
-"1. DEFINITIONS\n"
-"\n"
-"1.1. \"Contributor\" means each entity that creates or\n"
-"contributes to the creation of Modifications.\n"
-"\n"
-"1.2. \"Contributor Version\" means the combination of the\n"
-"Original Code, prior Modifications used by a\n"
-"Contributor, and the Modifications made by that\n"
-"particular Contributor.\n"
-"\n"
-"1.3. \"Covered Code\" means the Original Code or\n"
-"Modifications or the combination of the Original Code\n"
-"and Modifications, in each case including portions\n"
-"thereof.\n"
-"\n"
-"1.4. \"Electronic Distribution Mechanism\" means a\n"
-"mechanism generally accepted in the software development\n"
-"community for the electronic transfer of data.\n"
-"\n"
-"1.5. \"Executable\" means Covered Code in any form other\n"
-"than Source Code.\n"
-"1.6. \"Initial Developer\" means the individual or entity\n"
-"identified as the Initial Developer in the Source Code\n"
-"notice required by Exhibit A.\n"
-"\n"
-"1.7. \"Larger Work\" means a work which combines Covered\n"
-"Code or portions thereof with code not governed by the\n"
-"terms of this License.\n"
-"\n"
-"1.8. \"License\" means this document.\n"
-"\n"
-"1.9. \"Modifications\" means any addition to or deletion\n"
-"from the substance or structure of either the Original\n"
-"Code or any previous Modifications. When Covered Code is\n"
-"released as a series of files, a Modification is:\n"
-"\n"
-"     A. Any addition to or deletion from the\n"
-"     contents of a file containing Original Code or\n"
-"     previous Modifications.\n"
-"\n"
-"     B. Any new file that contains any part of the\n"
-"     Original Code or previous Modifications.\n"
-"\n"
-"1.10. \"Original Code\" means Source Code of computer\n"
-"software code which is described in the Source Code\n"
-"notice required by Exhibit A as Original Code, and\n"
-"which, at the time of its release under this License is\n"
-"not already Covered Code governed by this License.\n"
-"\n"
-"1.11. \"Source Code\" means the preferred form of the\n"
-"Covered Code for making modifications to it, including\n"
-"all modules it contains, plus any associated interface\n"
-"definition files, scripts used to control compilation\n"
-"and installation of an Executable, or a list of source\n"
-"code differential comparisons against either the\n"
-"Original Code or another well known, available Covered\n"
-"Code of the Contributor's choice. The Source Code can be\n"
-"in a compressed or archival form, provided the\n"
-"appropriate decompression or de-archiving software is\n"
-"widely available for no charge.\n"
-"\n"
-"1.12. \"You\" means an individual or a legal entity\n"
-"exercising rights under, and complying with all of the\n"
-"terms of, this License or a future version of this\n"
-"License issued under Section 6.1. For legal entities,\n"
-"\"You\" includes any entity which controls, is controlled\n"
-"by, or is under common control with You. For purposes of\n"
-"this definition, \"control\" means (a) the power, direct\n"
-"or indirect, to cause the direction or management of\n"
-"such entity, whether by contract or otherwise, or (b)\n"
-"ownership of fifty percent (50%) or more of the\n"
-"outstanding shares or beneficial ownership of such\n"
-"entity.\n"
-"\n"
-"1.13. \"Red Hat Branded Code\" is code that Red Hat\n"
-"distributes and/or permits others to distribute under\n"
-"different terms than the Red Hat eCos Public License.\n"
-"Red Hat's Branded Code may contain part or all of the\n"
-"Covered Code.\n";
-
-static void entry0( cyg_addrword_t data )
-{
-    int i;
-    unsigned long len;
-    int err;
-    int buf_size = sizeof(license_txt)+512;
-    unsigned char* packed = malloc(buf_size);
-    unsigned char* unpacked = malloc(buf_size);
-    
-    if (NULL == packed || NULL == unpacked)
-        CYG_TEST_NA("Not enough memory for buffers");
-
-    CYG_TEST_INFO("Compressing");
-
-    len = buf_size;
-    err = compress(packed, &len, license_txt, sizeof(license_txt));
-    diag_printf("len = %d", len);
-    diag_dump_buf(packed, len);
-
-    if (Z_OK != err)
-        CYG_TEST_NA("Not enough memory for compression");
-
-
-    CYG_TEST_INFO("Decompressing");
-    err = uncompress(unpacked, &buf_size, packed, len);
-
-    switch (err) {
-    case Z_OK:
-        break;
-    case Z_MEM_ERROR:
-        CYG_TEST_NA("Not enough memory for decompression");
-        break;
-    case Z_BUF_ERROR:
-        CYG_TEST_FAIL_FINISH("Decompressed data larger than original");
-        break;
-    case Z_DATA_ERROR:
-        CYG_TEST_FAIL_FINISH("Decompression failed");
-        break;
-    default:
-        CYG_TEST_FAIL_FINISH("Unknown decompression error");
-        break;
-    }
-
-    for (i = 0; i < sizeof(license_txt)-1; i++) {
-        if (license_txt[i] != unpacked[i])
-            CYG_TEST_FAIL_FINISH("Verify failed");
-    }
-
-    CYG_TEST_PASS_FINISH("zlib1 OK");
-}
-
-void zlib1_main( void )
-{
-    CYG_TEST_INIT();
-
-    cyg_thread_create(4, entry0 , (cyg_addrword_t)0, "zlib1",
-        (void *)stack[0], STACKSIZE,&thread[0], &thread_obj[0]);
-    cyg_thread_resume(thread[0]);
-
-    cyg_scheduler_start();
-
-    CYG_TEST_FAIL_FINISH("Not reached");
-}
-
-externC void
-cyg_start( void )
-{ 
-    zlib1_main();
-}
-
-#else /* def CYGFUN_KERNEL_API_C */
-externC void
-cyg_start( void )
-{
-    CYG_TEST_INIT();
-    CYG_TEST_NA("Kernel C API layer disabled");
-}
-#endif /* def CYGFUN_KERNEL_API_C */
-
-// EOF zlib1.c
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/tests/zlib2.c b/components/dfs/filesystems/jffs2/cyg/compress/tests/zlib2.c
deleted file mode 100644
index 11e36e1369..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/tests/zlib2.c
+++ /dev/null
@@ -1,307 +0,0 @@
-//=================================================================
-//
-//        zlib2.c
-//
-//        zlib decompression test 2
-//
-//==========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):     jskov
-// Contributors:  jskov
-// Date:          2001-03-09
-// Description:   Tests zlib compression of gz compressed image.
-//####DESCRIPTIONEND####
-
-
-#include <cyg/hal/hal_arch.h>           // CYGNUM_HAL_STACK_SIZE_TYPICAL
-
-#include <cyg/kernel/kapi.h>
-
-#include <cyg/infra/testcase.h>
-
-#ifdef CYGFUN_KERNEL_API_C
-
-#include <cyg/compress/zlib.h>
-#include <stdlib.h>
-
-#define NTHREADS 1
-#define STACKSIZE (CYGNUM_HAL_STACK_SIZE_TYPICAL > 8192 ? CYGNUM_HAL_STACK_SIZE_TYPICAL : 8192)
-
-static cyg_handle_t thread[NTHREADS];
-
-static cyg_thread thread_obj[NTHREADS];
-static char stack[NTHREADS][STACKSIZE];
-
-
-unsigned char gzip_test[] = {
-0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x8d, 0x56, 0xdb, 0x6e, 0xe3, 0x36,
-0x10, 0xed, 0x33, 0xbf, 0x82, 0x08, 0x50, 0x74, 0x03, 0xb8, 0xee, 0xa6, 0xed, 0x6e, 0x2f, 0x6f,
-0xd9, 0x24, 0x8b, 0x06, 0xd8, 0x4b, 0x91, 0x2c, 0xba, 0xe8, 0x23, 0x4d, 0x8d, 0x6c, 0x22, 0x12,
-0xa9, 0x92, 0x94, 0x9d, 0xfc, 0x7d, 0xcf, 0x0c, 0x25, 0x59, 0x72, 0x1a, 0xa0, 0x7e, 0x32, 0x45,
-0x72, 0xe6, 0xcc, 0xcc, 0x99, 0x33, 0xbc, 0xa3, 0x4a, 0xff, 0x61, 0xb2, 0xa6, 0xab, 0x90, 0xf4,
-0x9f, 0xfd, 0xa6, 0x71, 0x56, 0x7f, 0x70, 0x96, 0x7c, 0x22, 0xbd, 0xbf, 0x58, 0x5f, 0x28, 0xfc,
-0x2e, 0xd6, 0xfa, 0xfa, 0xe6, 0xfd, 0xed, 0xa7, 0xdb, 0x2f, 0xb7, 0x9f, 0x3f, 0xdd, 0xf3, 0x1a,
-0x5f, 0xce, 0xae, 0x82, 0xcf, 0xd1, 0x6d, 0xfa, 0x1c, 0xe2, 0x99, 0x6e, 0xc9, 0xf8, 0xa4, 0xc9,
-0xd8, 0x9d, 0x26, 0x9f, 0x5d, 0x7e, 0xd2, 0x79, 0x07, 0xab, 0x36, 0x92, 0xc9, 0x94, 0x74, 0x88,
-0xca, 0x8e, 0xc7, 0xb1, 0xcc, 0x01, 0xdb, 0x54, 0x76, 0x5d, 0xf0, 0x3a, 0xd4, 0xfa, 0x63, 0xa8,
-0x5c, 0xed, 0xac, 0xac, 0xd3, 0x9a, 0x7d, 0xfc, 0xb8, 0xf4, 0xa1, 0xff, 0xa2, 0x98, 0xb0, 0x39,
-0xfa, 0x12, 0x03, 0xa1, 0xdd, 0x38, 0x3f, 0xd9, 0xc0, 0x27, 0xf5, 0x39, 0xba, 0x2d, 0x3e, 0x35,
-0xfa, 0x2a, 0x54, 0xb4, 0xd2, 0x5d, 0x74, 0xb8, 0xba, 0x30, 0xae, 0xfb, 0x84, 0x98, 0x37, 0x4f,
-0xda, 0xa8, 0x99, 0xf9, 0x95, 0x36, 0xbe, 0x12, 0xa3, 0xcb, 0xc3, 0xad, 0xa9, 0x88, 0x0f, 0x73,
-0x38, 0xaa, 0x33, 0x31, 0x3b, 0xdb, 0x37, 0x26, 0xea, 0xd9, 0x55, 0x41, 0xfb, 0x93, 0xa0, 0xdd,
-0x53, 0x84, 0x6d, 0x76, 0x3d, 0x87, 0xb9, 0xc0, 0xc4, 0xb9, 0x58, 0xba, 0x00, 0xc0, 0xff, 0x0e,
-0x66, 0x79, 0x51, 0x31, 0xc0, 0xc5, 0xcd, 0x95, 0x76, 0xbe, 0xe4, 0xdc, 0x1a, 0x94, 0xcb, 0x79,
-0xdb, 0xf4, 0x95, 0xf3, 0x5b, 0xdd, 0x85, 0x28, 0x07, 0x14, 0x8c, 0x44, 0x0a, 0xb5, 0x20, 0xfc,
-0x19, 0x08, 0x6f, 0x1a, 0xb2, 0x39, 0x06, 0x8f, 0x22, 0x5f, 0xbb, 0x54, 0x02, 0x60, 0x7f, 0x1f,
-0xc9, 0xee, 0x8c, 0x77, 0xa9, 0x1d, 0x61, 0x1b, 0xd5, 0x8e, 0x9f, 0xf4, 0x96, 0x3c, 0x45, 0xd3,
-0x34, 0xc8, 0x98, 0xb5, 0xd4, 0x65, 0x44, 0x08, 0xbf, 0x8c, 0x2f, 0x85, 0x3a, 0x1f, 0x4c, 0x24,
-0x5d, 0xd1, 0x9e, 0x9a, 0xd0, 0xb5, 0xa8, 0x3d, 0x0a, 0xdd, 0xb6, 0xbd, 0x67, 0x0a, 0xd4, 0x43,
-0x64, 0x74, 0xf4, 0x9a, 0x23, 0xac, 0xd7, 0x14, 0x39, 0xc2, 0xca, 0x64, 0x23, 0xc8, 0xde, 0x30,
-0xb2, 0x47, 0xb2, 0x7d, 0x36, 0x9b, 0x66, 0xca, 0xdc, 0x3c, 0x9b, 0xec, 0xd0, 0x78, 0xb1, 0xd8,
-0xea, 0xc0, 0x51, 0x21, 0x34, 0xe3, 0xf5, 0x7d, 0xe8, 0xa3, 0x25, 0x39, 0xb2, 0x86, 0xa1, 0xb7,
-0x30, 0x74, 0x0b, 0xd7, 0x0e, 0x29, 0xbb, 0x2e, 0x90, 0x28, 0xce, 0x2b, 0xe1, 0x7c, 0xe5, 0xf6,
-0xae, 0xea, 0xb1, 0x0f, 0x6c, 0x85, 0xa9, 0xca, 0x55, 0xfc, 0xa7, 0x76, 0xf0, 0x65, 0xca, 0xb1,
-0x67, 0x36, 0xc6, 0x80, 0x67, 0xfe, 0x94, 0x0f, 0xe0, 0x02, 0xe9, 0x48, 0xff, 0xf4, 0x2e, 0x16,
-0x46, 0xdd, 0x3c, 0xee, 0xdc, 0xc6, 0x65, 0x7d, 0x29, 0x61, 0xfd, 0x02, 0x34, 0x1f, 0x4c, 0xdc,
-0xe2, 0xfa, 0xd7, 0x10, 0x1f, 0xa6, 0xd4, 0xea, 0x03, 0x56, 0xfa, 0xb0, 0x73, 0x5c, 0x38, 0x29,
-0x3a, 0x4d, 0xd1, 0xaa, 0x81, 0x22, 0x53, 0x09, 0xf5, 0x50, 0x42, 0x7d, 0x70, 0x99, 0x8f, 0x63,
-0x17, 0x8e, 0xf5, 0x96, 0x8f, 0xfb, 0xe2, 0x95, 0x69, 0x9f, 0x29, 0xb6, 0xa9, 0xd0, 0xc6, 0xa5,
-0xb1, 0x81, 0x05, 0xc5, 0xaf, 0x8c, 0xa2, 0xac, 0x8f, 0x99, 0xc0, 0x99, 0x2a, 0xd8, 0x9e, 0xeb,
-0x25, 0x87, 0x7e, 0xc3, 0xa1, 0x05, 0xb5, 0x26, 0xb0, 0x48, 0xba, 0xa9, 0x2a, 0x27, 0x2c, 0x41,
-0xdb, 0x02, 0x59, 0x85, 0x72, 0xf2, 0x52, 0xd5, 0x31, 0xb4, 0x85, 0x06, 0xfd, 0x26, 0x65, 0xe3,
-0xad, 0x00, 0x07, 0xab, 0x7a, 0x9b, 0x7b, 0x90, 0x02, 0x68, 0xc8, 0x31, 0xfc, 0x05, 0x97, 0xa7,
-0x08, 0xd9, 0x74, 0x17, 0x69, 0xef, 0x42, 0x9f, 0x4e, 0xda, 0x5f, 0x7f, 0xdd, 0x91, 0x3f, 0x21,
-0x40, 0x52, 0x11, 0x8e, 0x4d, 0x2a, 0x55, 0x32, 0x3a, 0x51, 0x74, 0x24, 0x21, 0xd7, 0xae, 0x21,
-0xf4, 0x82, 0x59, 0x18, 0xc1, 0x85, 0xdf, 0x95, 0xd2, 0xfc, 0xbb, 0x5c, 0xeb, 0xcb, 0x97, 0xc3,
-0xd0, 0x63, 0x18, 0xe5, 0x30, 0xcb, 0x14, 0xb2, 0x22, 0x86, 0x8d, 0x98, 0x96, 0x4f, 0xc6, 0x79,
-0x6e, 0xac, 0x67, 0x9d, 0x2c, 0x77, 0x5e, 0x88, 0x62, 0x70, 0xff, 0xae, 0xb8, 0xf7, 0x74, 0x28,
-0xe6, 0x8a, 0x30, 0x16, 0x9b, 0x25, 0xc1, 0x2c, 0x2b, 0xa3, 0x7e, 0xc9, 0x95, 0x53, 0x37, 0x2f,
-0x7b, 0x80, 0x14, 0xbf, 0x46, 0xed, 0x16, 0x17, 0xc6, 0xda, 0xcd, 0xc8, 0xca, 0xd6, 0x41, 0xb5,
-0x0e, 0xea, 0x1b, 0xd5, 0xd4, 0xb5, 0xc2, 0xa6, 0xc2, 0x43, 0x26, 0x04, 0x25, 0x0b, 0x41, 0x38,
-0x76, 0xf7, 0xff, 0x25, 0x3b, 0xd7, 0xe3, 0x44, 0x76, 0x21, 0x55, 0x4a, 0x0c, 0xe3, 0x6f, 0x16,
-0x63, 0xd9, 0xb5, 0x82, 0xc2, 0x21, 0xb5, 0x43, 0x21, 0x75, 0xef, 0x2b, 0x21, 0xc7, 0x91, 0xb1,
-0x5c, 0x66, 0xa6, 0xb7, 0x69, 0x30, 0x1a, 0xaa, 0xa7, 0x25, 0x05, 0x96, 0x9c, 0x3f, 0xa1, 0xf9,
-0x05, 0x8f, 0xa4, 0x19, 0xe2, 0x79, 0xd7, 0x23, 0x7b, 0x90, 0x1c, 0xb6, 0x53, 0xf4, 0xa3, 0x64,
-0x7a, 0x61, 0x9b, 0xa5, 0xaa, 0x35, 0x0f, 0x5c, 0xe3, 0x76, 0x21, 0xce, 0x20, 0x8b, 0xcb, 0xab,
-0xa3, 0xb6, 0x2a, 0x08, 0x21, 0x1f, 0xe9, 0xc1, 0x39, 0xec, 0x4c, 0x85, 0xc4, 0xa8, 0x69, 0xfa,
-0xa1, 0x5f, 0x52, 0x0a, 0xd6, 0x99, 0xa2, 0x93, 0x48, 0x78, 0x6d, 0x2c, 0xa9, 0x8a, 0x6a, 0xe7,
-0x0b, 0xff, 0x06, 0xbe, 0x72, 0xb6, 0xbb, 0x3c, 0x8c, 0x23, 0xb8, 0x91, 0x01, 0x19, 0x1a, 0xa9,
-0x93, 0x6b, 0xc4, 0xbd, 0x48, 0x3e, 0x8c, 0x67, 0x38, 0x9d, 0x06, 0x03, 0x64, 0xef, 0x28, 0x96,
-0x2b, 0xe9, 0x24, 0xdd, 0x40, 0xcc, 0x79, 0x2f, 0x49, 0x02, 0x94, 0x14, 0x16, 0x51, 0x20, 0x6a,
-0x96, 0x36, 0x53, 0x8c, 0x9a, 0xe8, 0x12, 0x87, 0x64, 0xb6, 0x0c, 0x38, 0xcf, 0x9a, 0x53, 0x3d,
-0x23, 0x9c, 0xf1, 0xa2, 0xb2, 0xfa, 0x40, 0x08, 0xf7, 0xc1, 0x87, 0x83, 0x47, 0x25, 0xf7, 0x06,
-0xb8, 0xe0, 0xf4, 0x44, 0xac, 0xca, 0xac, 0x9a, 0x0d, 0xc4, 0xef, 0x92, 0xb6, 0xbb, 0x80, 0xe2,
-0xac, 0xf5, 0x97, 0x25, 0x8f, 0x30, 0xa8, 0xbc, 0xde, 0x90, 0x62, 0x39, 0x17, 0x4c, 0x91, 0x12,
-0x87, 0xcf, 0x1e, 0xa3, 0xdd, 0xb9, 0x3d, 0x20, 0x70, 0x8d, 0x78, 0x70, 0x07, 0x08, 0x35, 0xc9,
-0x48, 0x56, 0xa6, 0xc3, 0x12, 0xa3, 0x1c, 0x39, 0x05, 0x4d, 0xc7, 0x7b, 0x92, 0x0f, 0x6e, 0xe4,
-0xef, 0xcb, 0x5d, 0x2e, 0xde, 0xc4, 0x6d, 0x10, 0xe9, 0x80, 0xfb, 0x3c, 0xb4, 0x26, 0xd8, 0x5c,
-0x64, 0x8f, 0x44, 0xef, 0x58, 0x94, 0x0b, 0x6b, 0xf8, 0x91, 0xf1, 0x77, 0xe8, 0x8f, 0x72, 0x77,
-0x32, 0x22, 0x90, 0x5a, 0xda, 0xe2, 0xef, 0x30, 0x2a, 0xe8, 0x91, 0xa2, 0x75, 0x89, 0x3d, 0x21,
-0x63, 0x3b, 0xae, 0x1e, 0x73, 0xb8, 0x3c, 0x1e, 0x18, 0x57, 0xf3, 0xc4, 0x7b, 0xa2, 0xd5, 0x4c,
-0x94, 0x81, 0x6a, 0xa3, 0x3a, 0xaf, 0x96, 0x64, 0x17, 0xfb, 0x75, 0x2f, 0x62, 0xb9, 0x2f, 0xaf,
-0x9b, 0x51, 0xc2, 0xd5, 0xb1, 0x21, 0x52, 0x8f, 0x2c, 0x94, 0x56, 0xb9, 0xc7, 0x1c, 0xe5, 0x43,
-0x6f, 0xf9, 0x01, 0xf6, 0x1e, 0xd7, 0x67, 0xe0, 0x20, 0x86, 0x2b, 0x55, 0x62, 0x29, 0x64, 0xa5,
-0xc2, 0xc6, 0xe1, 0x39, 0x36, 0x8e, 0x1b, 0xe1, 0x18, 0xbf, 0x1c, 0xd2, 0xb8, 0x68, 0x50, 0xc8,
-0xcd, 0x93, 0x10, 0xc9, 0x0d, 0xf1, 0x70, 0x28, 0x2d, 0xfc, 0x8c, 0x94, 0x94, 0x78, 0x60, 0xba,
-0x38, 0xed, 0xfa, 0xd8, 0x85, 0x24, 0xda, 0xab, 0xca, 0x28, 0x99, 0xb8, 0xbd, 0xd2, 0x67, 0xc3,
-0x9d, 0x31, 0xa3, 0xaf, 0xcc, 0x79, 0xe9, 0xc1, 0x70, 0xe0, 0x3c, 0x55, 0x50, 0x0f, 0x9b, 0x15,
-0xfb, 0xf2, 0xe5, 0xff, 0x4a, 0xb8, 0x6f, 0xd0, 0x05, 0x72, 0xae, 0x7c, 0x1c, 0x4a, 0xdb, 0x1a,
-0x6f, 0xb6, 0xc4, 0x53, 0x8a, 0x7d, 0xa5, 0x7e, 0x7a, 0x5d, 0xae, 0x10, 0x0f, 0x09, 0x41, 0xa1,
-0x05, 0xe2, 0xd1, 0xd8, 0xcc, 0x37, 0x84, 0xb5, 0x07, 0x97, 0x4a, 0x63, 0xbc, 0xda, 0x9c, 0x2b,
-0x50, 0x17, 0xa9, 0xdd, 0xb9, 0xae, 0x8c, 0x8a, 0x1a, 0xb9, 0xc0, 0x40, 0xb7, 0x6c, 0xf3, 0xd5,
-0x9b, 0xd7, 0xdf, 0x9e, 0x8b, 0x9f, 0x10, 0x47, 0x1e, 0xab, 0xd0, 0x67, 0x1e, 0x66, 0xf2, 0x8e,
-0x4a, 0x60, 0x8a, 0xbc, 0x5e, 0xc1, 0x59, 0x8f, 0x20, 0x2d, 0xb7, 0xd2, 0xc2, 0x20, 0x63, 0x52,
-0x05, 0x53, 0x21, 0x14, 0xbf, 0x03, 0xef, 0x86, 0x37, 0xf5, 0x3b, 0x3c, 0x76, 0xaa, 0xe9, 0x3d,
-0x28, 0x19, 0xaf, 0x06, 0xfd, 0x1f, 0x8e, 0xa8, 0x6a, 0x7c, 0x85, 0x49, 0xb5, 0xaa, 0x1f, 0x38,
-0xbd, 0x20, 0x0b, 0xab, 0xa4, 0x84, 0x22, 0x02, 0x74, 0x3c, 0x54, 0xca, 0xa3, 0xa6, 0xd6, 0xd6,
-0x85, 0x59, 0xf2, 0x16, 0xe2, 0xec, 0xdd, 0xbd, 0xfc, 0x9a, 0x5f, 0xab, 0x61, 0x13, 0xdd, 0x39,
-0x07, 0x86, 0x24, 0x3f, 0x8d, 0x2a, 0x36, 0x4c, 0xa2, 0x38, 0xe7, 0xee, 0x5c, 0x26, 0xd7, 0xea,
-0x9b, 0x7f, 0x01, 0x21, 0xe0, 0xda, 0x98, 0x30, 0x0c, 0x00, 0x00};
-
-unsigned char gzip_test_ref[] =
-"Red Hat eCos Public License v1.1\n"
-"\n"
-"\n"
-"\n"
-"1. DEFINITIONS\n"
-"\n"
-"1.1. \"Contributor\" means each entity that creates or\n"
-"contributes to the creation of Modifications.\n"
-"\n"
-"1.2. \"Contributor Version\" means the combination of the\n"
-"Original Code, prior Modifications used by a\n"
-"Contributor, and the Modifications made by that\n"
-"particular Contributor.\n"
-"\n"
-"1.3. \"Covered Code\" means the Original Code or\n"
-"Modifications or the combination of the Original Code\n"
-"and Modifications, in each case including portions\n"
-"thereof.\n"
-"\n"
-"1.4. \"Electronic Distribution Mechanism\" means a\n"
-"mechanism generally accepted in the software development\n"
-"community for the electronic transfer of data.\n"
-"\n"
-"1.5. \"Executable\" means Covered Code in any form other\n"
-"than Source Code.\n"
-"1.6. \"Initial Developer\" means the individual or entity\n"
-"identified as the Initial Developer in the Source Code\n"
-"notice required by Exhibit A.\n"
-"\n"
-"1.7. \"Larger Work\" means a work which combines Covered\n"
-"Code or portions thereof with code not governed by the\n"
-"terms of this License.\n"
-"\n"
-"1.8. \"License\" means this document.\n"
-"\n"
-"1.9. \"Modifications\" means any addition to or deletion\n"
-"from the substance or structure of either the Original\n"
-"Code or any previous Modifications. When Covered Code is\n"
-"released as a series of files, a Modification is:\n"
-"\n"
-"     A. Any addition to or deletion from the\n"
-"     contents of a file containing Original Code or\n"
-"     previous Modifications.\n"
-"\n"
-"     B. Any new file that contains any part of the\n"
-"     Original Code or previous Modifications.\n"
-"\n"
-"1.10. \"Original Code\" means Source Code of computer\n"
-"software code which is described in the Source Code\n"
-"notice required by Exhibit A as Original Code, and\n"
-"which, at the time of its release under this License is\n"
-"not already Covered Code governed by this License.\n"
-"\n"
-"1.11. \"Source Code\" means the preferred form of the\n"
-"Covered Code for making modifications to it, including\n"
-"all modules it contains, plus any associated interface\n"
-"definition files, scripts used to control compilation\n"
-"and installation of an Executable, or a list of source\n"
-"code differential comparisons against either the\n"
-"Original Code or another well known, available Covered\n"
-"Code of the Contributor's choice. The Source Code can be\n"
-"in a compressed or archival form, provided the\n"
-"appropriate decompression or de-archiving software is\n"
-"widely available for no charge.\n"
-"\n"
-"1.12. \"You\" means an individual or a legal entity\n"
-"exercising rights under, and complying with all of the\n"
-"terms of, this License or a future version of this\n"
-"License issued under Section 6.1. For legal entities,\n"
-"\"You\" includes any entity which controls, is controlled\n"
-"by, or is under common control with You. For purposes of\n"
-"this definition, \"control\" means (a) the power, direct\n"
-"or indirect, to cause the direction or management of\n"
-"such entity, whether by contract or otherwise, or (b)\n"
-"ownership of fifty percent (50%) or more of the\n"
-"outstanding shares or beneficial ownership of such\n"
-"entity.\n"
-"\n"
-"1.13. \"Red Hat Branded Code\" is code that Red Hat\n"
-"distributes and/or permits others to distribute under\n"
-"different terms than the Red Hat eCos Public License.\n"
-"Red Hat's Branded Code may contain part or all of the\n"
-"Covered Code.\n";
-
-static void entry0( cyg_addrword_t data )
-{
-    int i;
-    unsigned long len;
-    int err;
-    int buf_size = sizeof(gzip_test_ref)+512;
-    unsigned char* unpacked = malloc(buf_size);
-    
-    if (NULL == unpacked)
-        CYG_TEST_NA("Not enough memory for buffers");
-
-    CYG_TEST_INFO("Decompressing");
-    len = buf_size;
-    err = uncompress(unpacked, &len, gzip_test, sizeof(gzip_test));
-
-    switch (err) {
-    case Z_OK:
-        break;
-    case Z_MEM_ERROR:
-        CYG_TEST_NA("Not enough memory for decompression");
-        break;
-    case Z_BUF_ERROR:
-        CYG_TEST_FAIL_FINISH("Decompressed data larger than original");
-        break;
-    case Z_DATA_ERROR:
-        CYG_TEST_FAIL_FINISH("Decompression failed");
-        break;
-    default:
-        CYG_TEST_FAIL_FINISH("Unknown decompression error");
-        break;
-    }
-
-    for (i = 0; i < sizeof(gzip_test_ref)-1; i++) {
-        if (gzip_test_ref[i] != unpacked[i])
-            CYG_TEST_FAIL_FINISH("Verify failed");
-    }
-
-    CYG_TEST_PASS_FINISH("zlib2 OK");
-}
-
-void zlib2_main( void )
-{
-    CYG_TEST_INIT();
-
-    cyg_thread_create(4, entry0 , (cyg_addrword_t)0, "zlib1",
-        (void *)stack[0], STACKSIZE,&thread[0], &thread_obj[0]);
-    cyg_thread_resume(thread[0]);
-
-    cyg_scheduler_start();
-
-    CYG_TEST_FAIL_FINISH("Not reached");
-}
-
-externC void
-cyg_start( void )
-{ 
-    zlib2_main();
-}
-
-#else /* def CYGFUN_KERNEL_API_C */
-externC void
-cyg_start( void )
-{
-    CYG_TEST_INIT();
-    CYG_TEST_NA("Kernel C API layer disabled");
-}
-#endif /* def CYGFUN_KERNEL_API_C */
-
-// EOF zlib1.c
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/zconf.h b/components/dfs/filesystems/jffs2/cyg/compress/zconf.h
deleted file mode 100644
index dc360d8ff6..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/zconf.h
+++ /dev/null
@@ -1,358 +0,0 @@
-/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2005 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#ifndef ZCONF_H
-#define ZCONF_H
-
-// #ifdef __ECOS__
-#undef __ECOS__
-#define __ECOS__
-#include <rtthread.h>
-
-#ifndef RT_USING_LIBC
-#define malloc  rt_malloc
-#define free    rt_free
-#define printf  rt_kprintf
-#endif
-
-//#define Z_PREFIX //by prife
-//#include <pkgconf/compress_zlib.h> //prife no such file.
-
-#if CYGINT_COMPRESS_ZLIB_LOCAL_ALLOC != 0
-#define MY_ZCALLOC
-#endif
-#ifdef CYGSEM_COMPRESS_ZLIB_DEFLATE_MAKES_GZIP
-#undef  MAX_WBITS
-#define MAX_WBITS   15+16 /* 32K LZ77 window */
-#else
-#define NO_GZIP
-#define NO_GZCOMPRESS
-#endif
-// #endif
-
-/*
- * If you *really* need a unique prefix for all types and library functions,
- * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
- */
-#ifdef Z_PREFIX
-#  define deflateInit_          z_deflateInit_
-#  define deflate               z_deflate
-#  define deflateEnd            z_deflateEnd
-#  define inflateInit_          z_inflateInit_
-#  define inflate               z_inflate
-#  define inflateEnd            z_inflateEnd
-#  define deflateInit2_         z_deflateInit2_
-#  define deflateSetDictionary  z_deflateSetDictionary
-#  define deflateCopy           z_deflateCopy
-#  define deflateReset          z_deflateReset
-#  define deflateParams         z_deflateParams
-#  define deflateBound          z_deflateBound
-#  define deflatePrime          z_deflatePrime
-#  define inflateInit2_         z_inflateInit2_
-#  define inflateSetDictionary  z_inflateSetDictionary
-#  define inflateSync           z_inflateSync
-#  define inflateSyncPoint      z_inflateSyncPoint
-#  define inflateCopy           z_inflateCopy
-#  define inflateReset          z_inflateReset
-#  define inflateBack           z_inflateBack
-#  define inflateBackEnd        z_inflateBackEnd
-#  define compress              z_compress
-#  define compress2             z_compress2
-#  define compressBound         z_compressBound
-#  define uncompress            z_uncompress
-#  define adler32               z_adler32
-#  define crc32                 z_crc32
-#  define get_crc_table         z_get_crc_table
-#  define zError                z_zError
-
-#  define alloc_func            z_alloc_func
-#  define free_func             z_free_func
-#  define in_func               z_in_func
-#  define out_func              z_out_func
-#  define Byte                  z_Byte
-#  define uInt                  z_uInt
-#  define uLong                 z_uLong
-#  define Bytef                 z_Bytef
-#  define charf                 z_charf
-#  define intf                  z_intf
-#  define uIntf                 z_uIntf
-#  define uLongf                z_uLongf
-#  define voidpf                z_voidpf
-#  define voidp                 z_voidp
-#endif
-
-#if defined(__MSDOS__) && !defined(MSDOS)
-#  define MSDOS
-#endif
-#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
-#  define OS2
-#endif
-#if defined(_WINDOWS) && !defined(WINDOWS)
-#  define WINDOWS
-#endif
-#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
-#  ifndef WIN32
-#    define WIN32
-#  endif
-#endif
-#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
-#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
-#    ifndef SYS16BIT
-#      define SYS16BIT
-#    endif
-#  endif
-#endif
-
-/*
- * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
- * than 64k bytes at a time (needed on systems with 16-bit int).
- */
-#ifdef SYS16BIT
-#  define MAXSEG_64K
-#endif
-#ifdef MSDOS
-#  define UNALIGNED_OK
-#endif
-
-#ifdef __STDC_VERSION__
-#  ifndef STDC
-#    define STDC
-#  endif
-#  if __STDC_VERSION__ >= 199901L
-#    ifndef STDC99
-#      define STDC99
-#    endif
-#  endif
-#endif
-#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
-#  define STDC
-#endif
-#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
-#  define STDC
-#endif
-#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
-#  define STDC
-#endif
-#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
-#  define STDC
-#endif
-
-#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
-#  define STDC
-#endif
-
-#ifndef STDC
-#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
-#    define const       /* note: need a more gentle solution here */
-#  endif
-#endif
-
-/* Some Mac compilers merge all .h files incorrectly: */
-#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
-#  define NO_DUMMY_DECL
-#endif
-
-/* Maximum value for memLevel in deflateInit2 */
-#ifndef MAX_MEM_LEVEL
-#  ifdef MAXSEG_64K
-#    define MAX_MEM_LEVEL 8
-#  else
-#    define MAX_MEM_LEVEL 9
-#  endif
-#endif
-
-/* Maximum value for windowBits in deflateInit2 and inflateInit2.
- * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
- * created by gzip. (Files created by minigzip can still be extracted by
- * gzip.)
- */
-#ifndef MAX_WBITS
-#  define MAX_WBITS   15 /* 32K LZ77 window */
-#endif
-
-/* The memory requirements for deflate are (in bytes):
-            (1 << (windowBits+2)) +  (1 << (memLevel+9))
- that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
- plus a few kilobytes for small objects. For example, if you want to reduce
- the default memory requirements from 256K to 128K, compile with
-     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
- Of course this will generally degrade compression (there's no free lunch).
-
-   The memory requirements for inflate are (in bytes) 1 << windowBits
- that is, 32K for windowBits=15 (default value) plus a few kilobytes
- for small objects.
-*/
-
-                        /* Type declarations */
-
-#ifndef OF /* function prototypes */
-#  ifdef STDC
-#    define OF(args)  args
-#  else
-#    define OF(args)  ()
-#  endif
-#endif
-
-/* The following definitions for FAR are needed only for MSDOS mixed
- * model programming (small or medium model with some far allocations).
- * This was tested only with MSC; for other MSDOS compilers you may have
- * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
- * just define FAR to be empty.
- */
-#ifdef SYS16BIT
-#  if defined(M_I86SM) || defined(M_I86MM)
-     /* MSC small or medium model */
-#    define SMALL_MEDIUM
-#    ifdef _MSC_VER
-#      define FAR _far
-#    else
-#      define FAR far
-#    endif
-#  endif
-#  if (defined(__SMALL__) || defined(__MEDIUM__))
-     /* Turbo C small or medium model */
-#    define SMALL_MEDIUM
-#    ifdef __BORLANDC__
-#      define FAR _far
-#    else
-#      define FAR far
-#    endif
-#  endif
-#endif
-
-#if defined(WINDOWS) || defined(WIN32)
-   /* If building or using zlib as a DLL, define ZLIB_DLL.
-    * This is not mandatory, but it offers a little performance increase.
-    */
-#  ifdef ZLIB_DLL
-#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
-#      ifdef ZLIB_INTERNAL
-#        define ZEXTERN extern __declspec(dllexport)
-#      else
-#        define ZEXTERN extern __declspec(dllimport)
-#      endif
-#    endif
-#  endif  /* ZLIB_DLL */
-   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
-    * define ZLIB_WINAPI.
-    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
-    */
-#  ifdef ZLIB_WINAPI
-#    ifdef FAR
-#      undef FAR
-#    endif
-#    include <windows.h>
-     /* No need for _export, use ZLIB.DEF instead. */
-     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
-#    define ZEXPORT WINAPI
-#    ifdef WIN32
-#      define ZEXPORTVA WINAPIV
-#    else
-#      define ZEXPORTVA FAR CDECL
-#    endif
-#  endif
-#endif
-
-#if defined (__BEOS__)
-#  ifdef ZLIB_DLL
-#    ifdef ZLIB_INTERNAL
-#      define ZEXPORT   __declspec(dllexport)
-#      define ZEXPORTVA __declspec(dllexport)
-#    else
-#      define ZEXPORT   __declspec(dllimport)
-#      define ZEXPORTVA __declspec(dllimport)
-#    endif
-#  endif
-#endif
-
-#ifndef ZEXTERN
-#  define ZEXTERN extern
-#endif
-#ifndef ZEXPORT
-#  define ZEXPORT
-#endif
-#ifndef ZEXPORTVA
-#  define ZEXPORTVA
-#endif
-
-#ifndef FAR
-#  define FAR
-#endif
-
-#if !defined(__MACTYPES__)
-typedef unsigned char  Byte;  /* 8 bits */
-#endif
-typedef unsigned int   uInt;  /* 16 bits or more */
-typedef unsigned long  uLong; /* 32 bits or more */
-
-#ifdef SMALL_MEDIUM
-   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
-#  define Bytef Byte FAR
-#else
-   typedef Byte  FAR Bytef;
-#endif
-typedef char  FAR charf;
-typedef int   FAR intf;
-typedef uInt  FAR uIntf;
-typedef uLong FAR uLongf;
-
-#ifdef STDC
-   typedef void const *voidpc;
-   typedef void FAR   *voidpf;
-   typedef void       *voidp;
-#else
-   typedef Byte const *voidpc;
-   typedef Byte FAR   *voidpf;
-   typedef Byte       *voidp;
-#endif
-
-#if 0           /* HAVE_UNISTD_H -- this line is updated by ./configure */
-#  include <sys/types.h> /* for off_t */
-#  include <unistd.h>    /* for SEEK_* and off_t */
-#  ifdef VMS
-#    include <unixio.h>   /* for off_t */
-#  endif
-#  define z_off_t off_t
-#endif
-#ifndef SEEK_SET
-#  define SEEK_SET        0       /* Seek from beginning of file.  */
-#  define SEEK_CUR        1       /* Seek from current position.  */
-#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
-#endif
-#ifndef z_off_t
-#  define z_off_t long
-#endif
-
-#if defined(__OS400__)
-#  define NO_vsnprintf
-#endif
-
-#if defined(__MVS__)
-#  define NO_vsnprintf
-#  ifdef FAR
-#    undef FAR
-#  endif
-#endif
-
-/* MVS linker does not support external names larger than 8 bytes */
-#if defined(__MVS__)
-#   pragma map(deflateInit_,"DEIN")
-#   pragma map(deflateInit2_,"DEIN2")
-#   pragma map(deflateEnd,"DEEND")
-#   pragma map(deflateBound,"DEBND")
-#   pragma map(inflateInit_,"ININ")
-#   pragma map(inflateInit2_,"ININ2")
-#   pragma map(inflateEnd,"INEND")
-#   pragma map(inflateSync,"INSY")
-#   pragma map(inflateSetDictionary,"INSEDI")
-#   pragma map(compressBound,"CMBND")
-#   pragma map(inflate_table,"INTABL")
-#   pragma map(inflate_fast,"INFA")
-#   pragma map(inflate_copyright,"INCOPY")
-#endif
-
-#endif /* ZCONF_H */
diff --git a/components/dfs/filesystems/jffs2/cyg/compress/zlib.h b/components/dfs/filesystems/jffs2/cyg/compress/zlib.h
deleted file mode 100644
index 081e7c912f..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/compress/zlib.h
+++ /dev/null
@@ -1,1358 +0,0 @@
-/* zlib.h -- interface of the 'zlib' general purpose compression library
-  version 1.2.3, July 18th, 2005
-
-  Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler
-
-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the authors be held liable for any damages
-  arising from the use of this software.
-
-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
-
-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
-
-  Jean-loup Gailly        Mark Adler
-  jloup@gzip.org          madler@alumni.caltech.edu
-
-
-  The data format used by the zlib library is described by RFCs (Request for
-  Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt
-  (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
-*/
-
-#ifndef ZLIB_H
-#define ZLIB_H
-
-#include "zconf.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define ZLIB_VERSION "1.2.3"
-#define ZLIB_VERNUM 0x1230
-
-/*
-     The 'zlib' compression library provides in-memory compression and
-  decompression functions, including integrity checks of the uncompressed
-  data.  This version of the library supports only one compression method
-  (deflation) but other algorithms will be added later and will have the same
-  stream interface.
-
-     Compression can be done in a single step if the buffers are large
-  enough (for example if an input file is mmap'ed), or can be done by
-  repeated calls of the compression function.  In the latter case, the
-  application must provide more input and/or consume the output
-  (providing more output space) before each call.
-
-     The compressed data format used by default by the in-memory functions is
-  the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
-  around a deflate stream, which is itself documented in RFC 1951.
-
-     The library also supports reading and writing files in gzip (.gz) format
-  with an interface similar to that of stdio using the functions that start
-  with "gz".  The gzip format is different from the zlib format.  gzip is a
-  gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
-
-     This library can optionally read and write gzip streams in memory as well.
-
-     The zlib format was designed to be compact and fast for use in memory
-  and on communications channels.  The gzip format was designed for single-
-  file compression on file systems, has a larger header than zlib to maintain
-  directory information, and uses a different, slower check method than zlib.
-
-     The library does not install any signal handler. The decoder checks
-  the consistency of the compressed data, so the library should never
-  crash even in case of corrupted input.
-*/
-
-typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
-typedef void   (*free_func)  OF((voidpf opaque, voidpf address));
-
-struct internal_state;
-
-typedef struct z_stream_s {
-    Bytef    *next_in;  /* next input byte */
-    uInt     avail_in;  /* number of bytes available at next_in */
-    uLong    total_in;  /* total nb of input bytes read so far */
-
-    Bytef    *next_out; /* next output byte should be put there */
-    uInt     avail_out; /* remaining free space at next_out */
-    uLong    total_out; /* total nb of bytes output so far */
-
-    char     *msg;      /* last error message, NULL if no error */
-    struct internal_state FAR *state; /* not visible by applications */
-
-    alloc_func zalloc;  /* used to allocate the internal state */
-    free_func  zfree;   /* used to free the internal state */
-    voidpf     opaque;  /* private data object passed to zalloc and zfree */
-
-    int     data_type;  /* best guess about the data type: binary or text */
-    uLong   adler;      /* adler32 value of the uncompressed data */
-    uLong   reserved;   /* reserved for future use */
-} z_stream;
-
-typedef z_stream FAR *z_streamp;
-
-/*
-     gzip header information passed to and from zlib routines.  See RFC 1952
-  for more details on the meanings of these fields.
-*/
-typedef struct gz_header_s {
-    int     text;       /* true if compressed data believed to be text */
-    uLong   time;       /* modification time */
-    int     xflags;     /* extra flags (not used when writing a gzip file) */
-    int     os;         /* operating system */
-    Bytef   *extra;     /* pointer to extra field or Z_NULL if none */
-    uInt    extra_len;  /* extra field length (valid if extra != Z_NULL) */
-    uInt    extra_max;  /* space at extra (only when reading header) */
-    Bytef   *name;      /* pointer to zero-terminated file name or Z_NULL */
-    uInt    name_max;   /* space at name (only when reading header) */
-    Bytef   *comment;   /* pointer to zero-terminated comment or Z_NULL */
-    uInt    comm_max;   /* space at comment (only when reading header) */
-    int     hcrc;       /* true if there was or will be a header crc */
-    int     done;       /* true when done reading gzip header (not used
-                           when writing a gzip file) */
-} gz_header;
-
-typedef gz_header FAR *gz_headerp;
-
-/*
-   The application must update next_in and avail_in when avail_in has
-   dropped to zero. It must update next_out and avail_out when avail_out
-   has dropped to zero. The application must initialize zalloc, zfree and
-   opaque before calling the init function. All other fields are set by the
-   compression library and must not be updated by the application.
-
-   The opaque value provided by the application will be passed as the first
-   parameter for calls of zalloc and zfree. This can be useful for custom
-   memory management. The compression library attaches no meaning to the
-   opaque value.
-
-   zalloc must return Z_NULL if there is not enough memory for the object.
-   If zlib is used in a multi-threaded application, zalloc and zfree must be
-   thread safe.
-
-   On 16-bit systems, the functions zalloc and zfree must be able to allocate
-   exactly 65536 bytes, but will not be required to allocate more than this
-   if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS,
-   pointers returned by zalloc for objects of exactly 65536 bytes *must*
-   have their offset normalized to zero. The default allocation function
-   provided by this library ensures this (see zutil.c). To reduce memory
-   requirements and avoid any allocation of 64K objects, at the expense of
-   compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h).
-
-   The fields total_in and total_out can be used for statistics or
-   progress reports. After compression, total_in holds the total size of
-   the uncompressed data and may be saved for use in the decompressor
-   (particularly if the decompressor wants to decompress everything in
-   a single step).
-*/
-
-                        /* constants */
-
-#define Z_NO_FLUSH      0
-#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */
-#define Z_SYNC_FLUSH    2
-#define Z_FULL_FLUSH    3
-#define Z_FINISH        4
-#define Z_BLOCK         5
-/* Allowed flush values; see deflate() and inflate() below for details */
-
-#define Z_OK            0
-#define Z_STREAM_END    1
-#define Z_NEED_DICT     2
-#define Z_ERRNO        (-1)
-#define Z_STREAM_ERROR (-2)
-#define Z_DATA_ERROR   (-3)
-#define Z_MEM_ERROR    (-4)
-#define Z_BUF_ERROR    (-5)
-#define Z_VERSION_ERROR (-6)
-/* Return codes for the compression/decompression functions. Negative
- * values are errors, positive values are used for special but normal events.
- */
-
-#define Z_NO_COMPRESSION         0
-#define Z_BEST_SPEED             1
-#define Z_BEST_COMPRESSION       9
-#define Z_DEFAULT_COMPRESSION  (-1)
-/* compression levels */
-
-#define Z_FILTERED            1
-#define Z_HUFFMAN_ONLY        2
-#define Z_RLE                 3
-#define Z_FIXED               4
-#define Z_DEFAULT_STRATEGY    0
-/* compression strategy; see deflateInit2() below for details */
-
-#define Z_BINARY   0
-#define Z_TEXT     1
-#define Z_ASCII    Z_TEXT   /* for compatibility with 1.2.2 and earlier */
-#define Z_UNKNOWN  2
-/* Possible values of the data_type field (though see inflate()) */
-
-#define Z_DEFLATED   8
-/* The deflate compression method (the only one supported in this version) */
-
-#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
-
-#define zlib_version zlibVersion()
-/* for compatibility with versions < 1.0.2 */
-
-                        /* basic functions */
-
-ZEXTERN const char * ZEXPORT zlibVersion OF((void));
-/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
-   If the first character differs, the library code actually used is
-   not compatible with the zlib.h header file used by the application.
-   This check is automatically made by deflateInit and inflateInit.
- */
-
-/*
-ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));
-
-     Initializes the internal stream state for compression. The fields
-   zalloc, zfree and opaque must be initialized before by the caller.
-   If zalloc and zfree are set to Z_NULL, deflateInit updates them to
-   use default allocation functions.
-
-     The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
-   1 gives best speed, 9 gives best compression, 0 gives no compression at
-   all (the input data is simply copied a block at a time).
-   Z_DEFAULT_COMPRESSION requests a default compromise between speed and
-   compression (currently equivalent to level 6).
-
-     deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_STREAM_ERROR if level is not a valid compression level,
-   Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
-   with the version assumed by the caller (ZLIB_VERSION).
-   msg is set to null if there is no error message.  deflateInit does not
-   perform any compression: this will be done by deflate().
-*/
-
-
-ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
-/*
-    deflate compresses as much data as possible, and stops when the input
-  buffer becomes empty or the output buffer becomes full. It may introduce some
-  output latency (reading input without producing any output) except when
-  forced to flush.
-
-    The detailed semantics are as follows. deflate performs one or both of the
-  following actions:
-
-  - Compress more input starting at next_in and update next_in and avail_in
-    accordingly. If not all input can be processed (because there is not
-    enough room in the output buffer), next_in and avail_in are updated and
-    processing will resume at this point for the next call of deflate().
-
-  - Provide more output starting at next_out and update next_out and avail_out
-    accordingly. This action is forced if the parameter flush is non zero.
-    Forcing flush frequently degrades the compression ratio, so this parameter
-    should be set only when necessary (in interactive applications).
-    Some output may be provided even if flush is not set.
-
-  Before the call of deflate(), the application should ensure that at least
-  one of the actions is possible, by providing more input and/or consuming
-  more output, and updating avail_in or avail_out accordingly; avail_out
-  should never be zero before the call. The application can consume the
-  compressed output when it wants, for example when the output buffer is full
-  (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK
-  and with zero avail_out, it must be called again after making room in the
-  output buffer because there might be more output pending.
-
-    Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to
-  decide how much data to accumualte before producing output, in order to
-  maximize compression.
-
-    If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
-  flushed to the output buffer and the output is aligned on a byte boundary, so
-  that the decompressor can get all input data available so far. (In particular
-  avail_in is zero after the call if enough output space has been provided
-  before the call.)  Flushing may degrade compression for some compression
-  algorithms and so it should be used only when necessary.
-
-    If flush is set to Z_FULL_FLUSH, all output is flushed as with
-  Z_SYNC_FLUSH, and the compression state is reset so that decompression can
-  restart from this point if previous compressed data has been damaged or if
-  random access is desired. Using Z_FULL_FLUSH too often can seriously degrade
-  compression.
-
-    If deflate returns with avail_out == 0, this function must be called again
-  with the same value of the flush parameter and more output space (updated
-  avail_out), until the flush is complete (deflate returns with non-zero
-  avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that
-  avail_out is greater than six to avoid repeated flush markers due to
-  avail_out == 0 on return.
-
-    If the parameter flush is set to Z_FINISH, pending input is processed,
-  pending output is flushed and deflate returns with Z_STREAM_END if there
-  was enough output space; if deflate returns with Z_OK, this function must be
-  called again with Z_FINISH and more output space (updated avail_out) but no
-  more input data, until it returns with Z_STREAM_END or an error. After
-  deflate has returned Z_STREAM_END, the only possible operations on the
-  stream are deflateReset or deflateEnd.
-
-    Z_FINISH can be used immediately after deflateInit if all the compression
-  is to be done in a single step. In this case, avail_out must be at least
-  the value returned by deflateBound (see below). If deflate does not return
-  Z_STREAM_END, then it must be called again as described above.
-
-    deflate() sets strm->adler to the adler32 checksum of all input read
-  so far (that is, total_in bytes).
-
-    deflate() may update strm->data_type if it can make a good guess about
-  the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered
-  binary. This field is only for information purposes and does not affect
-  the compression algorithm in any manner.
-
-    deflate() returns Z_OK if some progress has been made (more input
-  processed or more output produced), Z_STREAM_END if all input has been
-  consumed and all output has been produced (only when flush is set to
-  Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
-  if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible
-  (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not
-  fatal, and deflate() can be called again with more input and more output
-  space to continue compressing.
-*/
-
-
-ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
-/*
-     All dynamically allocated data structures for this stream are freed.
-   This function discards any unprocessed input and does not flush any
-   pending output.
-
-     deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
-   stream state was inconsistent, Z_DATA_ERROR if the stream was freed
-   prematurely (some input or output was discarded). In the error case,
-   msg may be set but then points to a static string (which must not be
-   deallocated).
-*/
-
-
-/*
-ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
-
-     Initializes the internal stream state for decompression. The fields
-   next_in, avail_in, zalloc, zfree and opaque must be initialized before by
-   the caller. If next_in is not Z_NULL and avail_in is large enough (the exact
-   value depends on the compression method), inflateInit determines the
-   compression method from the zlib header and allocates all data structures
-   accordingly; otherwise the allocation will be deferred to the first call of
-   inflate.  If zalloc and zfree are set to Z_NULL, inflateInit updates them to
-   use default allocation functions.
-
-     inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
-   version assumed by the caller.  msg is set to null if there is no error
-   message. inflateInit does not perform any decompression apart from reading
-   the zlib header if present: this will be done by inflate().  (So next_in and
-   avail_in may be modified, but next_out and avail_out are unchanged.)
-*/
-
-
-ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
-/*
-    inflate decompresses as much data as possible, and stops when the input
-  buffer becomes empty or the output buffer becomes full. It may introduce
-  some output latency (reading input without producing any output) except when
-  forced to flush.
-
-  The detailed semantics are as follows. inflate performs one or both of the
-  following actions:
-
-  - Decompress more input starting at next_in and update next_in and avail_in
-    accordingly. If not all input can be processed (because there is not
-    enough room in the output buffer), next_in is updated and processing
-    will resume at this point for the next call of inflate().
-
-  - Provide more output starting at next_out and update next_out and avail_out
-    accordingly.  inflate() provides as much output as possible, until there
-    is no more input data or no more space in the output buffer (see below
-    about the flush parameter).
-
-  Before the call of inflate(), the application should ensure that at least
-  one of the actions is possible, by providing more input and/or consuming
-  more output, and updating the next_* and avail_* values accordingly.
-  The application can consume the uncompressed output when it wants, for
-  example when the output buffer is full (avail_out == 0), or after each
-  call of inflate(). If inflate returns Z_OK and with zero avail_out, it
-  must be called again after making room in the output buffer because there
-  might be more output pending.
-
-    The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH,
-  Z_FINISH, or Z_BLOCK. Z_SYNC_FLUSH requests that inflate() flush as much
-  output as possible to the output buffer. Z_BLOCK requests that inflate() stop
-  if and when it gets to the next deflate block boundary. When decoding the
-  zlib or gzip format, this will cause inflate() to return immediately after
-  the header and before the first block. When doing a raw inflate, inflate()
-  will go ahead and process the first block, and will return when it gets to
-  the end of that block, or when it runs out of data.
-
-    The Z_BLOCK option assists in appending to or combining deflate streams.
-  Also to assist in this, on return inflate() will set strm->data_type to the
-  number of unused bits in the last byte taken from strm->next_in, plus 64
-  if inflate() is currently decoding the last block in the deflate stream,
-  plus 128 if inflate() returned immediately after decoding an end-of-block
-  code or decoding the complete header up to just before the first byte of the
-  deflate stream. The end-of-block will not be indicated until all of the
-  uncompressed data from that block has been written to strm->next_out.  The
-  number of unused bits may in general be greater than seven, except when
-  bit 7 of data_type is set, in which case the number of unused bits will be
-  less than eight.
-
-    inflate() should normally be called until it returns Z_STREAM_END or an
-  error. However if all decompression is to be performed in a single step
-  (a single call of inflate), the parameter flush should be set to
-  Z_FINISH. In this case all pending input is processed and all pending
-  output is flushed; avail_out must be large enough to hold all the
-  uncompressed data. (The size of the uncompressed data may have been saved
-  by the compressor for this purpose.) The next operation on this stream must
-  be inflateEnd to deallocate the decompression state. The use of Z_FINISH
-  is never required, but can be used to inform inflate that a faster approach
-  may be used for the single inflate() call.
-
-     In this implementation, inflate() always flushes as much output as
-  possible to the output buffer, and always uses the faster approach on the
-  first call. So the only effect of the flush parameter in this implementation
-  is on the return value of inflate(), as noted below, or when it returns early
-  because Z_BLOCK is used.
-
-     If a preset dictionary is needed after this call (see inflateSetDictionary
-  below), inflate sets strm->adler to the adler32 checksum of the dictionary
-  chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
-  strm->adler to the adler32 checksum of all output produced so far (that is,
-  total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
-  below. At the end of the stream, inflate() checks that its computed adler32
-  checksum is equal to that saved by the compressor and returns Z_STREAM_END
-  only if the checksum is correct.
-
-    inflate() will decompress and check either zlib-wrapped or gzip-wrapped
-  deflate data.  The header type is detected automatically.  Any information
-  contained in the gzip header is not retained, so applications that need that
-  information should instead use raw inflate, see inflateInit2() below, or
-  inflateBack() and perform their own processing of the gzip header and
-  trailer.
-
-    inflate() returns Z_OK if some progress has been made (more input processed
-  or more output produced), Z_STREAM_END if the end of the compressed data has
-  been reached and all uncompressed output has been produced, Z_NEED_DICT if a
-  preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
-  corrupted (input stream not conforming to the zlib format or incorrect check
-  value), Z_STREAM_ERROR if the stream structure was inconsistent (for example
-  if next_in or next_out was NULL), Z_MEM_ERROR if there was not enough memory,
-  Z_BUF_ERROR if no progress is possible or if there was not enough room in the
-  output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and
-  inflate() can be called again with more input and more output space to
-  continue decompressing. If Z_DATA_ERROR is returned, the application may then
-  call inflateSync() to look for a good compression block if a partial recovery
-  of the data is desired.
-*/
-
-
-ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
-/*
-     All dynamically allocated data structures for this stream are freed.
-   This function discards any unprocessed input and does not flush any
-   pending output.
-
-     inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
-   was inconsistent. In the error case, msg may be set but then points to a
-   static string (which must not be deallocated).
-*/
-
-                        /* Advanced functions */
-
-/*
-    The following functions are needed only in some special applications.
-*/
-
-/*
-ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
-                                     int  level,
-                                     int  method,
-                                     int  windowBits,
-                                     int  memLevel,
-                                     int  strategy));
-
-     This is another version of deflateInit with more compression options. The
-   fields next_in, zalloc, zfree and opaque must be initialized before by
-   the caller.
-
-     The method parameter is the compression method. It must be Z_DEFLATED in
-   this version of the library.
-
-     The windowBits parameter is the base two logarithm of the window size
-   (the size of the history buffer). It should be in the range 8..15 for this
-   version of the library. Larger values of this parameter result in better
-   compression at the expense of memory usage. The default value is 15 if
-   deflateInit is used instead.
-
-     windowBits can also be -8..-15 for raw deflate. In this case, -windowBits
-   determines the window size. deflate() will then generate raw deflate data
-   with no zlib header or trailer, and will not compute an adler32 check value.
-
-     windowBits can also be greater than 15 for optional gzip encoding. Add
-   16 to windowBits to write a simple gzip header and trailer around the
-   compressed data instead of a zlib wrapper. The gzip header will have no
-   file name, no extra data, no comment, no modification time (set to zero),
-   no header crc, and the operating system will be set to 255 (unknown).  If a
-   gzip stream is being written, strm->adler is a crc32 instead of an adler32.
-
-     The memLevel parameter specifies how much memory should be allocated
-   for the internal compression state. memLevel=1 uses minimum memory but
-   is slow and reduces compression ratio; memLevel=9 uses maximum memory
-   for optimal speed. The default value is 8. See zconf.h for total memory
-   usage as a function of windowBits and memLevel.
-
-     The strategy parameter is used to tune the compression algorithm. Use the
-   value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
-   filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no
-   string match), or Z_RLE to limit match distances to one (run-length
-   encoding). Filtered data consists mostly of small values with a somewhat
-   random distribution. In this case, the compression algorithm is tuned to
-   compress them better. The effect of Z_FILTERED is to force more Huffman
-   coding and less string matching; it is somewhat intermediate between
-   Z_DEFAULT and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as fast as
-   Z_HUFFMAN_ONLY, but give better compression for PNG image data. The strategy
-   parameter only affects the compression ratio but not the correctness of the
-   compressed output even if it is not set appropriately.  Z_FIXED prevents the
-   use of dynamic Huffman codes, allowing for a simpler decoder for special
-   applications.
-
-      deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
-   method). msg is set to null if there is no error message.  deflateInit2 does
-   not perform any compression: this will be done by deflate().
-*/
-
-ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
-                                             const Bytef *dictionary,
-                                             uInt  dictLength));
-/*
-     Initializes the compression dictionary from the given byte sequence
-   without producing any compressed output. This function must be called
-   immediately after deflateInit, deflateInit2 or deflateReset, before any
-   call of deflate. The compressor and decompressor must use exactly the same
-   dictionary (see inflateSetDictionary).
-
-     The dictionary should consist of strings (byte sequences) that are likely
-   to be encountered later in the data to be compressed, with the most commonly
-   used strings preferably put towards the end of the dictionary. Using a
-   dictionary is most useful when the data to be compressed is short and can be
-   predicted with good accuracy; the data can then be compressed better than
-   with the default empty dictionary.
-
-     Depending on the size of the compression data structures selected by
-   deflateInit or deflateInit2, a part of the dictionary may in effect be
-   discarded, for example if the dictionary is larger than the window size in
-   deflate or deflate2. Thus the strings most likely to be useful should be
-   put at the end of the dictionary, not at the front. In addition, the
-   current implementation of deflate will use at most the window size minus
-   262 bytes of the provided dictionary.
-
-     Upon return of this function, strm->adler is set to the adler32 value
-   of the dictionary; the decompressor may later use this value to determine
-   which dictionary has been used by the compressor. (The adler32 value
-   applies to the whole dictionary even if only a subset of the dictionary is
-   actually used by the compressor.) If a raw deflate was requested, then the
-   adler32 value is not computed and strm->adler is not set.
-
-     deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
-   parameter is invalid (such as NULL dictionary) or the stream state is
-   inconsistent (for example if deflate has already been called for this stream
-   or if the compression method is bsort). deflateSetDictionary does not
-   perform any compression: this will be done by deflate().
-*/
-
-ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
-                                    z_streamp source));
-/*
-     Sets the destination stream as a complete copy of the source stream.
-
-     This function can be useful when several compression strategies will be
-   tried, for example when there are several ways of pre-processing the input
-   data with a filter. The streams that will be discarded should then be freed
-   by calling deflateEnd.  Note that deflateCopy duplicates the internal
-   compression state which can be quite large, so this strategy is slow and
-   can consume lots of memory.
-
-     deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
-   (such as zalloc being NULL). msg is left unchanged in both source and
-   destination.
-*/
-
-ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
-/*
-     This function is equivalent to deflateEnd followed by deflateInit,
-   but does not free and reallocate all the internal compression state.
-   The stream will keep the same compression level and any other attributes
-   that may have been set by deflateInit2.
-
-      deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent (such as zalloc or state being NULL).
-*/
-
-ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
-                                      int level,
-                                      int strategy));
-/*
-     Dynamically update the compression level and compression strategy.  The
-   interpretation of level and strategy is as in deflateInit2.  This can be
-   used to switch between compression and straight copy of the input data, or
-   to switch to a different kind of input data requiring a different
-   strategy. If the compression level is changed, the input available so far
-   is compressed with the old level (and may be flushed); the new level will
-   take effect only at the next call of deflate().
-
-     Before the call of deflateParams, the stream state must be set as for
-   a call of deflate(), since the currently available input may have to
-   be compressed and flushed. In particular, strm->avail_out must be non-zero.
-
-     deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
-   stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR
-   if strm->avail_out was zero.
-*/
-
-ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm,
-                                    int good_length,
-                                    int max_lazy,
-                                    int nice_length,
-                                    int max_chain));
-/*
-     Fine tune deflate's internal compression parameters.  This should only be
-   used by someone who understands the algorithm used by zlib's deflate for
-   searching for the best matching string, and even then only by the most
-   fanatic optimizer trying to squeeze out the last compressed bit for their
-   specific input data.  Read the deflate.c source code for the meaning of the
-   max_lazy, good_length, nice_length, and max_chain parameters.
-
-     deflateTune() can be called after deflateInit() or deflateInit2(), and
-   returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream.
- */
-
-ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm,
-                                       uLong sourceLen));
-/*
-     deflateBound() returns an upper bound on the compressed size after
-   deflation of sourceLen bytes.  It must be called after deflateInit()
-   or deflateInit2().  This would be used to allocate an output buffer
-   for deflation in a single pass, and so would be called before deflate().
-*/
-
-ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
-                                     int bits,
-                                     int value));
-/*
-     deflatePrime() inserts bits in the deflate output stream.  The intent
-  is that this function is used to start off the deflate output with the
-  bits leftover from a previous deflate stream when appending to it.  As such,
-  this function can only be used for raw deflate, and must be used before the
-  first deflate() call after a deflateInit2() or deflateReset().  bits must be
-  less than or equal to 16, and that many of the least significant bits of
-  value will be inserted in the output.
-
-      deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent.
-*/
-
-ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm,
-                                         gz_headerp head));
-/*
-      deflateSetHeader() provides gzip header information for when a gzip
-   stream is requested by deflateInit2().  deflateSetHeader() may be called
-   after deflateInit2() or deflateReset() and before the first call of
-   deflate().  The text, time, os, extra field, name, and comment information
-   in the provided gz_header structure are written to the gzip header (xflag is
-   ignored -- the extra flags are set according to the compression level).  The
-   caller must assure that, if not Z_NULL, name and comment are terminated with
-   a zero byte, and that if extra is not Z_NULL, that extra_len bytes are
-   available there.  If hcrc is true, a gzip header crc is included.  Note that
-   the current versions of the command-line version of gzip (up through version
-   1.3.x) do not support header crc's, and will report that it is a "multi-part
-   gzip file" and give up.
-
-      If deflateSetHeader is not used, the default gzip header has text false,
-   the time set to zero, and os set to 255, with no extra, name, or comment
-   fields.  The gzip header is returned to the default state by deflateReset().
-
-      deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent.
-*/
-
-/*
-ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
-                                     int  windowBits));
-
-     This is another version of inflateInit with an extra parameter. The
-   fields next_in, avail_in, zalloc, zfree and opaque must be initialized
-   before by the caller.
-
-     The windowBits parameter is the base two logarithm of the maximum window
-   size (the size of the history buffer).  It should be in the range 8..15 for
-   this version of the library. The default value is 15 if inflateInit is used
-   instead. windowBits must be greater than or equal to the windowBits value
-   provided to deflateInit2() while compressing, or it must be equal to 15 if
-   deflateInit2() was not used. If a compressed stream with a larger window
-   size is given as input, inflate() will return with the error code
-   Z_DATA_ERROR instead of trying to allocate a larger window.
-
-     windowBits can also be -8..-15 for raw inflate. In this case, -windowBits
-   determines the window size. inflate() will then process raw deflate data,
-   not looking for a zlib or gzip header, not generating a check value, and not
-   looking for any check values for comparison at the end of the stream. This
-   is for use with other formats that use the deflate compressed data format
-   such as zip.  Those formats provide their own check values. If a custom
-   format is developed using the raw deflate format for compressed data, it is
-   recommended that a check value such as an adler32 or a crc32 be applied to
-   the uncompressed data as is done in the zlib, gzip, and zip formats.  For
-   most applications, the zlib format should be used as is. Note that comments
-   above on the use in deflateInit2() applies to the magnitude of windowBits.
-
-     windowBits can also be greater than 15 for optional gzip decoding. Add
-   32 to windowBits to enable zlib and gzip decoding with automatic header
-   detection, or add 16 to decode only the gzip format (the zlib format will
-   return a Z_DATA_ERROR).  If a gzip stream is being decoded, strm->adler is
-   a crc32 instead of an adler32.
-
-     inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_STREAM_ERROR if a parameter is invalid (such as a null strm). msg
-   is set to null if there is no error message.  inflateInit2 does not perform
-   any decompression apart from reading the zlib header if present: this will
-   be done by inflate(). (So next_in and avail_in may be modified, but next_out
-   and avail_out are unchanged.)
-*/
-
-ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
-                                             const Bytef *dictionary,
-                                             uInt  dictLength));
-/*
-     Initializes the decompression dictionary from the given uncompressed byte
-   sequence. This function must be called immediately after a call of inflate,
-   if that call returned Z_NEED_DICT. The dictionary chosen by the compressor
-   can be determined from the adler32 value returned by that call of inflate.
-   The compressor and decompressor must use exactly the same dictionary (see
-   deflateSetDictionary).  For raw inflate, this function can be called
-   immediately after inflateInit2() or inflateReset() and before any call of
-   inflate() to set the dictionary.  The application must insure that the
-   dictionary that was used for compression is provided.
-
-     inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
-   parameter is invalid (such as NULL dictionary) or the stream state is
-   inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
-   expected one (incorrect adler32 value). inflateSetDictionary does not
-   perform any decompression: this will be done by subsequent calls of
-   inflate().
-*/
-
-ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
-/*
-    Skips invalid compressed data until a full flush point (see above the
-  description of deflate with Z_FULL_FLUSH) can be found, or until all
-  available input is skipped. No output is provided.
-
-    inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
-  if no more input was provided, Z_DATA_ERROR if no flush point has been found,
-  or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
-  case, the application may save the current current value of total_in which
-  indicates where valid compressed data was found. In the error case, the
-  application may repeatedly call inflateSync, providing more input each time,
-  until success or end of the input data.
-*/
-
-ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
-                                    z_streamp source));
-/*
-     Sets the destination stream as a complete copy of the source stream.
-
-     This function can be useful when randomly accessing a large stream.  The
-   first pass through the stream can periodically record the inflate state,
-   allowing restarting inflate at those points when randomly accessing the
-   stream.
-
-     inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
-   (such as zalloc being NULL). msg is left unchanged in both source and
-   destination.
-*/
-
-ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
-/*
-     This function is equivalent to inflateEnd followed by inflateInit,
-   but does not free and reallocate all the internal decompression state.
-   The stream will keep attributes that may have been set by inflateInit2.
-
-      inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent (such as zalloc or state being NULL).
-*/
-
-ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm,
-                                     int bits,
-                                     int value));
-/*
-     This function inserts bits in the inflate input stream.  The intent is
-  that this function is used to start inflating at a bit position in the
-  middle of a byte.  The provided bits will be used before any bytes are used
-  from next_in.  This function should only be used with raw inflate, and
-  should be used before the first inflate() call after inflateInit2() or
-  inflateReset().  bits must be less than or equal to 16, and that many of the
-  least significant bits of value will be inserted in the input.
-
-      inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent.
-*/
-
-ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm,
-                                         gz_headerp head));
-/*
-      inflateGetHeader() requests that gzip header information be stored in the
-   provided gz_header structure.  inflateGetHeader() may be called after
-   inflateInit2() or inflateReset(), and before the first call of inflate().
-   As inflate() processes the gzip stream, head->done is zero until the header
-   is completed, at which time head->done is set to one.  If a zlib stream is
-   being decoded, then head->done is set to -1 to indicate that there will be
-   no gzip header information forthcoming.  Note that Z_BLOCK can be used to
-   force inflate() to return immediately after header processing is complete
-   and before any actual data is decompressed.
-
-      The text, time, xflags, and os fields are filled in with the gzip header
-   contents.  hcrc is set to true if there is a header CRC.  (The header CRC
-   was valid if done is set to one.)  If extra is not Z_NULL, then extra_max
-   contains the maximum number of bytes to write to extra.  Once done is true,
-   extra_len contains the actual extra field length, and extra contains the
-   extra field, or that field truncated if extra_max is less than extra_len.
-   If name is not Z_NULL, then up to name_max characters are written there,
-   terminated with a zero unless the length is greater than name_max.  If
-   comment is not Z_NULL, then up to comm_max characters are written there,
-   terminated with a zero unless the length is greater than comm_max.  When
-   any of extra, name, or comment are not Z_NULL and the respective field is
-   not present in the header, then that field is set to Z_NULL to signal its
-   absence.  This allows the use of deflateSetHeader() with the returned
-   structure to duplicate the header.  However if those fields are set to
-   allocated memory, then the application will need to save those pointers
-   elsewhere so that they can be eventually freed.
-
-      If inflateGetHeader is not used, then the header information is simply
-   discarded.  The header is always checked for validity, including the header
-   CRC if present.  inflateReset() will reset the process to discard the header
-   information.  The application would need to call inflateGetHeader() again to
-   retrieve the header from the next gzip stream.
-
-      inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent.
-*/
-
-/*
-ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
-                                        unsigned char FAR *window));
-
-     Initialize the internal stream state for decompression using inflateBack()
-   calls.  The fields zalloc, zfree and opaque in strm must be initialized
-   before the call.  If zalloc and zfree are Z_NULL, then the default library-
-   derived memory allocation routines are used.  windowBits is the base two
-   logarithm of the window size, in the range 8..15.  window is a caller
-   supplied buffer of that size.  Except for special applications where it is
-   assured that deflate was used with small window sizes, windowBits must be 15
-   and a 32K byte window must be supplied to be able to decompress general
-   deflate streams.
-
-     See inflateBack() for the usage of these routines.
-
-     inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
-   the paramaters are invalid, Z_MEM_ERROR if the internal state could not
-   be allocated, or Z_VERSION_ERROR if the version of the library does not
-   match the version of the header file.
-*/
-
-typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *));
-typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned));
-
-ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
-                                    in_func in, void FAR *in_desc,
-                                    out_func out, void FAR *out_desc));
-/*
-     inflateBack() does a raw inflate with a single call using a call-back
-   interface for input and output.  This is more efficient than inflate() for
-   file i/o applications in that it avoids copying between the output and the
-   sliding window by simply making the window itself the output buffer.  This
-   function trusts the application to not change the output buffer passed by
-   the output function, at least until inflateBack() returns.
-
-     inflateBackInit() must be called first to allocate the internal state
-   and to initialize the state with the user-provided window buffer.
-   inflateBack() may then be used multiple times to inflate a complete, raw
-   deflate stream with each call.  inflateBackEnd() is then called to free
-   the allocated state.
-
-     A raw deflate stream is one with no zlib or gzip header or trailer.
-   This routine would normally be used in a utility that reads zip or gzip
-   files and writes out uncompressed files.  The utility would decode the
-   header and process the trailer on its own, hence this routine expects
-   only the raw deflate stream to decompress.  This is different from the
-   normal behavior of inflate(), which expects either a zlib or gzip header and
-   trailer around the deflate stream.
-
-     inflateBack() uses two subroutines supplied by the caller that are then
-   called by inflateBack() for input and output.  inflateBack() calls those
-   routines until it reads a complete deflate stream and writes out all of the
-   uncompressed data, or until it encounters an error.  The function's
-   parameters and return types are defined above in the in_func and out_func
-   typedefs.  inflateBack() will call in(in_desc, &buf) which should return the
-   number of bytes of provided input, and a pointer to that input in buf.  If
-   there is no input available, in() must return zero--buf is ignored in that
-   case--and inflateBack() will return a buffer error.  inflateBack() will call
-   out(out_desc, buf, len) to write the uncompressed data buf[0..len-1].  out()
-   should return zero on success, or non-zero on failure.  If out() returns
-   non-zero, inflateBack() will return with an error.  Neither in() nor out()
-   are permitted to change the contents of the window provided to
-   inflateBackInit(), which is also the buffer that out() uses to write from.
-   The length written by out() will be at most the window size.  Any non-zero
-   amount of input may be provided by in().
-
-     For convenience, inflateBack() can be provided input on the first call by
-   setting strm->next_in and strm->avail_in.  If that input is exhausted, then
-   in() will be called.  Therefore strm->next_in must be initialized before
-   calling inflateBack().  If strm->next_in is Z_NULL, then in() will be called
-   immediately for input.  If strm->next_in is not Z_NULL, then strm->avail_in
-   must also be initialized, and then if strm->avail_in is not zero, input will
-   initially be taken from strm->next_in[0 .. strm->avail_in - 1].
-
-     The in_desc and out_desc parameters of inflateBack() is passed as the
-   first parameter of in() and out() respectively when they are called.  These
-   descriptors can be optionally used to pass any information that the caller-
-   supplied in() and out() functions need to do their job.
-
-     On return, inflateBack() will set strm->next_in and strm->avail_in to
-   pass back any unused input that was provided by the last in() call.  The
-   return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR
-   if in() or out() returned an error, Z_DATA_ERROR if there was a format
-   error in the deflate stream (in which case strm->msg is set to indicate the
-   nature of the error), or Z_STREAM_ERROR if the stream was not properly
-   initialized.  In the case of Z_BUF_ERROR, an input or output error can be
-   distinguished using strm->next_in which will be Z_NULL only if in() returned
-   an error.  If strm->next is not Z_NULL, then the Z_BUF_ERROR was due to
-   out() returning non-zero.  (in() will always be called before out(), so
-   strm->next_in is assured to be defined if out() returns non-zero.)  Note
-   that inflateBack() cannot return Z_OK.
-*/
-
-ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm));
-/*
-     All memory allocated by inflateBackInit() is freed.
-
-     inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream
-   state was inconsistent.
-*/
-
-ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
-/* Return flags indicating compile-time options.
-
-    Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other:
-     1.0: size of uInt
-     3.2: size of uLong
-     5.4: size of voidpf (pointer)
-     7.6: size of z_off_t
-
-    Compiler, assembler, and debug options:
-     8: DEBUG
-     9: ASMV or ASMINF -- use ASM code
-     10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention
-     11: 0 (reserved)
-
-    One-time table building (smaller code, but not thread-safe if true):
-     12: BUILDFIXED -- build static block decoding tables when needed
-     13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed
-     14,15: 0 (reserved)
-
-    Library content (indicates missing functionality):
-     16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking
-                          deflate code when not needed)
-     17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect
-                    and decode gzip streams (to avoid linking crc code)
-     18-19: 0 (reserved)
-
-    Operation variations (changes in library functionality):
-     20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate
-     21: FASTEST -- deflate algorithm with only one, lowest compression level
-     22,23: 0 (reserved)
-
-    The sprintf variant used by gzprintf (zero is best):
-     24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format
-     25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure!
-     26: 0 = returns value, 1 = void -- 1 means inferred string length returned
-
-    Remainder:
-     27-31: 0 (reserved)
- */
-
-
-                        /* utility functions */
-
-/*
-     The following utility functions are implemented on top of the
-   basic stream-oriented functions. To simplify the interface, some
-   default options are assumed (compression level and memory usage,
-   standard memory allocation functions). The source code of these
-   utility functions can easily be modified if you need special options.
-*/
-
-ZEXTERN int ZEXPORT compress OF((Bytef *dest,   uLongf *destLen,
-                                 const Bytef *source, uLong sourceLen));
-/*
-     Compresses the source buffer into the destination buffer.  sourceLen is
-   the byte length of the source buffer. Upon entry, destLen is the total
-   size of the destination buffer, which must be at least the value returned
-   by compressBound(sourceLen). Upon exit, destLen is the actual size of the
-   compressed buffer.
-     This function can be used to compress a whole file at once if the
-   input file is mmap'ed.
-     compress returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_BUF_ERROR if there was not enough room in the output
-   buffer.
-*/
-
-ZEXTERN int ZEXPORT compress2 OF((Bytef *dest,   uLongf *destLen,
-                                  const Bytef *source, uLong sourceLen,
-                                  int level));
-/*
-     Compresses the source buffer into the destination buffer. The level
-   parameter has the same meaning as in deflateInit.  sourceLen is the byte
-   length of the source buffer. Upon entry, destLen is the total size of the
-   destination buffer, which must be at least the value returned by
-   compressBound(sourceLen). Upon exit, destLen is the actual size of the
-   compressed buffer.
-
-     compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
-   memory, Z_BUF_ERROR if there was not enough room in the output buffer,
-   Z_STREAM_ERROR if the level parameter is invalid.
-*/
-
-ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen));
-/*
-     compressBound() returns an upper bound on the compressed size after
-   compress() or compress2() on sourceLen bytes.  It would be used before
-   a compress() or compress2() call to allocate the destination buffer.
-*/
-
-ZEXTERN int ZEXPORT uncompress OF((Bytef *dest,   uLongf *destLen,
-                                   const Bytef *source, uLong sourceLen));
-/*
-     Decompresses the source buffer into the destination buffer.  sourceLen is
-   the byte length of the source buffer. Upon entry, destLen is the total
-   size of the destination buffer, which must be large enough to hold the
-   entire uncompressed data. (The size of the uncompressed data must have
-   been saved previously by the compressor and transmitted to the decompressor
-   by some mechanism outside the scope of this compression library.)
-   Upon exit, destLen is the actual size of the compressed buffer.
-     This function can be used to decompress a whole file at once if the
-   input file is mmap'ed.
-
-     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_BUF_ERROR if there was not enough room in the output
-   buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete.
-*/
-
-
-typedef voidp gzFile;
-
-ZEXTERN gzFile ZEXPORT gzopen  OF((const char *path, const char *mode));
-/*
-     Opens a gzip (.gz) file for reading or writing. The mode parameter
-   is as in fopen ("rb" or "wb") but can also include a compression level
-   ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for
-   Huffman only compression as in "wb1h", or 'R' for run-length encoding
-   as in "wb1R". (See the description of deflateInit2 for more information
-   about the strategy parameter.)
-
-     gzopen can be used to read a file which is not in gzip format; in this
-   case gzread will directly read from the file without decompression.
-
-     gzopen returns NULL if the file could not be opened or if there was
-   insufficient memory to allocate the (de)compression state; errno
-   can be checked to distinguish the two cases (if errno is zero, the
-   zlib error is Z_MEM_ERROR).  */
-
-ZEXTERN gzFile ZEXPORT gzdopen  OF((int fd, const char *mode));
-/*
-     gzdopen() associates a gzFile with the file descriptor fd.  File
-   descriptors are obtained from calls like open, dup, creat, pipe or
-   fileno (in the file has been previously opened with fopen).
-   The mode parameter is as in gzopen.
-     The next call of gzclose on the returned gzFile will also close the
-   file descriptor fd, just like fclose(fdopen(fd), mode) closes the file
-   descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode).
-     gzdopen returns NULL if there was insufficient memory to allocate
-   the (de)compression state.
-*/
-
-ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
-/*
-     Dynamically update the compression level or strategy. See the description
-   of deflateInit2 for the meaning of these parameters.
-     gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
-   opened for writing.
-*/
-
-ZEXTERN int ZEXPORT    gzread  OF((gzFile file, voidp buf, unsigned len));
-/*
-     Reads the given number of uncompressed bytes from the compressed file.
-   If the input file was not in gzip format, gzread copies the given number
-   of bytes into the buffer.
-     gzread returns the number of uncompressed bytes actually read (0 for
-   end of file, -1 for error). */
-
-ZEXTERN int ZEXPORT    gzwrite OF((gzFile file,
-                                   voidpc buf, unsigned len));
-/*
-     Writes the given number of uncompressed bytes into the compressed file.
-   gzwrite returns the number of uncompressed bytes actually written
-   (0 in case of error).
-*/
-
-ZEXTERN int ZEXPORTVA   gzprintf OF((gzFile file, const char *format, ...));
-/*
-     Converts, formats, and writes the args to the compressed file under
-   control of the format string, as in fprintf. gzprintf returns the number of
-   uncompressed bytes actually written (0 in case of error).  The number of
-   uncompressed bytes written is limited to 4095. The caller should assure that
-   this limit is not exceeded. If it is exceeded, then gzprintf() will return
-   return an error (0) with nothing written. In this case, there may also be a
-   buffer overflow with unpredictable consequences, which is possible only if
-   zlib was compiled with the insecure functions sprintf() or vsprintf()
-   because the secure snprintf() or vsnprintf() functions were not available.
-*/
-
-ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
-/*
-      Writes the given null-terminated string to the compressed file, excluding
-   the terminating null character.
-      gzputs returns the number of characters written, or -1 in case of error.
-*/
-
-ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len));
-/*
-      Reads bytes from the compressed file until len-1 characters are read, or
-   a newline character is read and transferred to buf, or an end-of-file
-   condition is encountered.  The string is then terminated with a null
-   character.
-      gzgets returns buf, or Z_NULL in case of error.
-*/
-
-ZEXTERN int ZEXPORT    gzputc OF((gzFile file, int c));
-/*
-      Writes c, converted to an unsigned char, into the compressed file.
-   gzputc returns the value that was written, or -1 in case of error.
-*/
-
-ZEXTERN int ZEXPORT    gzgetc OF((gzFile file));
-/*
-      Reads one byte from the compressed file. gzgetc returns this byte
-   or -1 in case of end of file or error.
-*/
-
-ZEXTERN int ZEXPORT    gzungetc OF((int c, gzFile file));
-/*
-      Push one character back onto the stream to be read again later.
-   Only one character of push-back is allowed.  gzungetc() returns the
-   character pushed, or -1 on failure.  gzungetc() will fail if a
-   character has been pushed but not read yet, or if c is -1. The pushed
-   character will be discarded if the stream is repositioned with gzseek()
-   or gzrewind().
-*/
-
-ZEXTERN int ZEXPORT    gzflush OF((gzFile file, int flush));
-/*
-     Flushes all pending output into the compressed file. The parameter
-   flush is as in the deflate() function. The return value is the zlib
-   error number (see function gzerror below). gzflush returns Z_OK if
-   the flush parameter is Z_FINISH and all output could be flushed.
-     gzflush should be called only when strictly necessary because it can
-   degrade compression.
-*/
-
-ZEXTERN z_off_t ZEXPORT    gzseek OF((gzFile file,
-                                      z_off_t offset, int whence));
-/*
-      Sets the starting position for the next gzread or gzwrite on the
-   given compressed file. The offset represents a number of bytes in the
-   uncompressed data stream. The whence parameter is defined as in lseek(2);
-   the value SEEK_END is not supported.
-     If the file is opened for reading, this function is emulated but can be
-   extremely slow. If the file is opened for writing, only forward seeks are
-   supported; gzseek then compresses a sequence of zeroes up to the new
-   starting position.
-
-      gzseek returns the resulting offset location as measured in bytes from
-   the beginning of the uncompressed stream, or -1 in case of error, in
-   particular if the file is opened for writing and the new starting position
-   would be before the current position.
-*/
-
-ZEXTERN int ZEXPORT    gzrewind OF((gzFile file));
-/*
-     Rewinds the given file. This function is supported only for reading.
-
-   gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
-*/
-
-ZEXTERN z_off_t ZEXPORT    gztell OF((gzFile file));
-/*
-     Returns the starting position for the next gzread or gzwrite on the
-   given compressed file. This position represents a number of bytes in the
-   uncompressed data stream.
-
-   gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
-*/
-
-ZEXTERN int ZEXPORT gzeof OF((gzFile file));
-/*
-     Returns 1 when EOF has previously been detected reading the given
-   input stream, otherwise zero.
-*/
-
-ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
-/*
-     Returns 1 if file is being read directly without decompression, otherwise
-   zero.
-*/
-
-ZEXTERN int ZEXPORT    gzclose OF((gzFile file));
-/*
-     Flushes all pending output if necessary, closes the compressed file
-   and deallocates all the (de)compression state. The return value is the zlib
-   error number (see function gzerror below).
-*/
-
-ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
-/*
-     Returns the error message for the last error which occurred on the
-   given compressed file. errnum is set to zlib error number. If an
-   error occurred in the file system and not in the compression library,
-   errnum is set to Z_ERRNO and the application may consult errno
-   to get the exact error code.
-*/
-
-ZEXTERN void ZEXPORT gzclearerr OF((gzFile file));
-/*
-     Clears the error and end-of-file flags for file. This is analogous to the
-   clearerr() function in stdio. This is useful for continuing to read a gzip
-   file that is being written concurrently.
-*/
-
-                        /* checksum functions */
-
-/*
-     These functions are not related to compression but are exported
-   anyway because they might be useful in applications using the
-   compression library.
-*/
-
-ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
-/*
-     Update a running Adler-32 checksum with the bytes buf[0..len-1] and
-   return the updated checksum. If buf is NULL, this function returns
-   the required initial value for the checksum.
-   An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
-   much faster. Usage example:
-
-     uLong adler = adler32(0L, Z_NULL, 0);
-
-     while (read_buffer(buffer, length) != EOF) {
-       adler = adler32(adler, buffer, length);
-     }
-     if (adler != original_adler) error();
-*/
-
-#ifndef __ECOS__
-ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
-                                          z_off_t len2));
-/*
-     Combine two Adler-32 checksums into one.  For two sequences of bytes, seq1
-   and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
-   each, adler1 and adler2.  adler32_combine() returns the Adler-32 checksum of
-   seq1 and seq2 concatenated, requiring only adler1, adler2, and len2.
-*/
-
-ZEXTERN uLong ZEXPORT crc32   OF((uLong crc, const Bytef *buf, uInt len));
-/*
-     Update a running CRC-32 with the bytes buf[0..len-1] and return the
-   updated CRC-32. If buf is NULL, this function returns the required initial
-   value for the for the crc. Pre- and post-conditioning (one's complement) is
-   performed within this function so it shouldn't be done by the application.
-   Usage example:
-
-     uLong crc = crc32(0L, Z_NULL, 0);
-
-     while (read_buffer(buffer, length) != EOF) {
-       crc = crc32(crc, buffer, length);
-     }
-     if (crc != original_crc) error();
-*/
-#endif // __ECOS__
-
-                        /* various hacks, don't look :) */
-
-/* deflateInit and inflateInit are macros to allow checking the zlib version
- * and the compiler's view of z_stream:
- */
-ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level,
-                                     const char *version, int stream_size));
-ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm,
-                                     const char *version, int stream_size));
-ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int  level, int  method,
-                                      int windowBits, int memLevel,
-                                      int strategy, const char *version,
-                                      int stream_size));
-ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int  windowBits,
-                                      const char *version, int stream_size));
-ZEXTERN int ZEXPORT inflateBackInit_ OF((z_stream FAR *strm, int windowBits,
-                                         unsigned char FAR *window,
-                                         const char *version,
-                                         int stream_size));
-#define deflateInit(strm, level) \
-        deflateInit_((strm), (level),       ZLIB_VERSION, sizeof(z_stream))
-#define inflateInit(strm) \
-        inflateInit_((strm),                ZLIB_VERSION, sizeof(z_stream))
-#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
-        deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
-                      (strategy),           ZLIB_VERSION, sizeof(z_stream))
-#define inflateInit2(strm, windowBits) \
-        inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
-#define inflateBackInit(strm, windowBits, window) \
-        inflateBackInit_((strm), (windowBits), (window), \
-        ZLIB_VERSION, sizeof(z_stream))
-
-ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2));
-
-/*
-     Combine two CRC-32 check values into one.  For two sequences of bytes,
-   seq1 and seq2 with lengths len1 and len2, CRC-32 check values were
-   calculated for each, crc1 and crc2.  crc32_combine() returns the CRC-32
-   check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and
-   len2.
-*/
-
-
-#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
-    struct internal_state {int dummy;}; /* hack for buggy compilers */
-#endif
-
-ZEXTERN const char   * ZEXPORT zError           OF((int));
-ZEXTERN int            ZEXPORT inflateSyncPoint OF((z_streamp z));
-ZEXTERN const uLongf * ZEXPORT get_crc_table    OF((void));
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ZLIB_H */
diff --git a/components/dfs/filesystems/jffs2/cyg/crc/crc.h b/components/dfs/filesystems/jffs2/cyg/crc/crc.h
deleted file mode 100644
index 7b7db10e9e..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/crc/crc.h
+++ /dev/null
@@ -1,105 +0,0 @@
-//==========================================================================
-//
-//      crc.h
-//
-//      Interface for the CRC algorithms.
-//
-//==========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 2002, 2009 Free Software Foundation, Inc.                        
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):    Andrew Lunn
-// Contributors: Andrew Lunn
-// Date:         2002-08-06
-// Purpose:      
-// Description:  
-//              
-// This code is part of eCos (tm).
-//
-//####DESCRIPTIONEND####
-//
-//==========================================================================
-
-#ifndef _SERVICES_CRC_CRC_H_
-#define _SERVICES_CRC_CRC_H_
-
-#include <cyg/infra/cyg_type.h>
-
-#ifndef __externC
-# ifdef __cplusplus
-#  define __externC extern "C"
-# else
-#  define __externC extern
-# endif
-#endif
-
-// Compute a CRC, using the POSIX 1003 definition
-
-__externC cyg_uint32 
-cyg_posix_crc32(unsigned char *s, int len);
-
-// Gary S. Brown's 32 bit CRC
-
-__externC cyg_uint32 
-cyg_crc32(unsigned char *s, int len);
-
-// Gary S. Brown's 32 bit CRC, but accumulate the result from a
-// previous CRC calculation
-
-__externC cyg_uint32 
-cyg_crc32_accumulate(cyg_uint32 crc, unsigned char *s, int len);
-
-// Ethernet FCS Algorithm
-
-__externC cyg_uint32 
-cyg_ether_crc32(unsigned char *s, int len);
-
-// Ethernet FCS algorithm, but accumulate the result from a previous
-// CRC calculation.
-
-__externC cyg_uint32 
-cyg_ether_crc32_accumulate(cyg_uint32 crc, unsigned char *s, int len);
-
-// 16 bit CRC with polynomial x^16+x^12+x^5+1
-
-__externC cyg_uint16
-cyg_crc16(unsigned char *s, int len);
-
-__externC cyg_uint16
-cyg_crc16_accumulate(cyg_uint16 crc, unsigned char *s, int len);
-
-#endif // _SERVICES_CRC_CRC_H_
-
-
-
diff --git a/components/dfs/filesystems/jffs2/cyg/crc/crc16.c b/components/dfs/filesystems/jffs2/cyg/crc/crc16.c
deleted file mode 100644
index 7d6fa38105..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/crc/crc16.c
+++ /dev/null
@@ -1,104 +0,0 @@
-//==========================================================================
-//
-//      crc16.c
-//
-//      16 bit CRC with polynomial x^16+x^12+x^5+1
-//
-//==========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):    gthomas
-// Contributors: gthomas,asl
-// Date:         2001-01-31
-// Purpose:      
-// Description:  
-//              
-// This code is part of eCos (tm).
-//
-//####DESCRIPTIONEND####
-//
-//==========================================================================
-
-#include <cyg/crc/crc.h>
-
-// Table of CRC constants - implements x^16+x^12+x^5+1
-static const cyg_uint16 crc16_tab[] = {
-    0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 
-    0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, 
-    0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 
-    0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, 
-    0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, 
-    0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, 
-    0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, 
-    0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, 
-    0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, 
-    0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, 
-    0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, 
-    0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, 
-    0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 
-    0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49, 
-    0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, 
-    0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78, 
-    0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, 
-    0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067, 
-    0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 
-    0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, 
-    0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, 
-    0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 
-    0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, 
-    0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, 
-    0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, 
-    0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, 
-    0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, 
-    0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, 
-    0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 
-    0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, 
-    0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 
-    0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0, 
-};
-
-cyg_uint16
-cyg_crc16(unsigned char *buf, int len)
-{
-    int i;
-    cyg_uint16 cksum;
-
-    cksum = 0;
-    for (i = 0;  i < len;  i++) {
-        cksum = crc16_tab[((cksum>>8) ^ *buf++) & 0xFF] ^ (cksum << 8);
-    }
-    return cksum;
-}
-
diff --git a/components/dfs/filesystems/jffs2/cyg/crc/crc32.c b/components/dfs/filesystems/jffs2/cyg/crc/crc32.c
deleted file mode 100644
index 7e4ea269f2..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/crc/crc32.c
+++ /dev/null
@@ -1,166 +0,0 @@
-//==========================================================================
-//
-//      crc32.c
-//
-//      Gary S. Brown's 32 bit CRC
-//
-//==========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):    gthomas
-// Contributors: gthomas,asl
-// Date:         2001-01-31
-// Purpose:      
-// Description:  
-//              
-// This code is part of eCos (tm).
-//
-//####DESCRIPTIONEND####
-//
-//==========================================================================
-
-#include <cyg/crc/crc.h>
-
-  /* ====================================================================== */
-  /*  COPYRIGHT (C) 1986 Gary S. Brown.  You may use this program, or       */
-  /*  code or tables extracted from it, as desired without restriction.     */
-  /*                                                                        */
-  /*  First, the polynomial itself and its table of feedback terms.  The    */
-  /*  polynomial is                                                         */
-  /*  X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0   */
-  /*                                                                        */
-  /* ====================================================================== */
-
-static const cyg_uint32 crc32_tab[] = {
-      0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
-      0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
-      0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
-      0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
-      0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
-      0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
-      0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
-      0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
-      0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
-      0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
-      0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
-      0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
-      0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
-      0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
-      0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
-      0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
-      0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
-      0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
-      0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
-      0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
-      0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
-      0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
-      0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
-      0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
-      0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
-      0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
-      0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
-      0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
-      0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
-      0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
-      0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
-      0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
-      0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
-      0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
-      0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
-      0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
-      0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
-      0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
-      0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
-      0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
-      0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
-      0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
-      0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
-      0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
-      0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
-      0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
-      0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
-      0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
-      0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
-      0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
-      0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
-      0x2d02ef8dL
-   };
-
-/* This is the standard Gary S. Brown's 32 bit CRC algorithm, but
-   accumulate the CRC into the result of a previous CRC. */
-cyg_uint32 
-cyg_crc32_accumulate(cyg_uint32 crc32val, unsigned char *s, int len)
-{
-  int i;
-
-  for (i = 0;  i < len;  i++) {
-    crc32val = crc32_tab[(crc32val ^ s[i]) & 0xff] ^ (crc32val >> 8);
-  }
-  return crc32val;
-}
-
-/* This is the standard Gary S. Brown's 32 bit CRC algorithm */
-cyg_uint32
-cyg_crc32(unsigned char *s, int len)
-{
-  return (cyg_crc32_accumulate(0,s,len));
-}
-
-/* Return a 32-bit CRC of the contents of the buffer accumulating the
-   result from a previous CRC calculation. This uses the Ethernet FCS
-   algorithm.*/
-cyg_uint32
-cyg_ether_crc32_accumulate(cyg_uint32 crc32val, unsigned char *s, int len)
-{
-  int i;
-
-  if (s == 0) return 0L;
-  
-  crc32val = crc32val ^ 0xffffffff;
-  for (i = 0;  i < len;  i++) {
-      crc32val = crc32_tab[(crc32val ^ s[i]) & 0xff] ^ (crc32val >> 8);
-  }
-  return crc32val ^ 0xffffffff;
-}
-
-/* Return a 32-bit CRC of the contents of the buffer, using the
-   Ethernet FCS algorithm. */
-cyg_uint32
-cyg_ether_crc32(unsigned char *s, int len)
-{
-  return cyg_ether_crc32_accumulate(0,s,len);
-}
-
-
diff --git a/components/dfs/filesystems/jffs2/cyg/crc/posix_crc.c b/components/dfs/filesystems/jffs2/cyg/crc/posix_crc.c
deleted file mode 100644
index 0da50e9a40..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/crc/posix_crc.c
+++ /dev/null
@@ -1,116 +0,0 @@
-//==========================================================================
-//
-//      posix_crc.c
-//
-//      POSIX CRC calculation
-//
-//==========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):    gthomas
-// Contributors: gthomas,asl
-// Date:         2001-01-31
-// Purpose:      
-// Description:  
-//              
-// This code is part of eCos (tm).
-//
-//####DESCRIPTIONEND####
-//
-//==========================================================================
-
-#include <cyg/crc/crc.h>
-
-// Compute a CRC, using the POSIX 1003 definition
-
-// Same basic algorithm as CRC-16, but the bits are defined in the
-// opposite order.  This computation matches the output of the
-// Linux 'cksum' program.
-
-static const cyg_uint32 posix_crc32_tab[] = {
-  0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9, 0x130476DC, 0x17C56B6B, 0x1A864DB2, 0x1E475005, 
-  0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61, 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD,
-  0x4C11DB70, 0x48D0C6C7, 0x4593E01E, 0x4152FDA9, 0x5F15ADAC, 0x5BD4B01B, 0x569796C2, 0x52568B75, 
-  0x6A1936C8, 0x6ED82B7F, 0x639B0DA6, 0x675A1011, 0x791D4014, 0x7DDC5DA3, 0x709F7B7A, 0x745E66CD, 
-  0x9823B6E0, 0x9CE2AB57, 0x91A18D8E, 0x95609039, 0x8B27C03C, 0x8FE6DD8B, 0x82A5FB52, 0x8664E6E5, 
-  0xBE2B5B58, 0xBAEA46EF, 0xB7A96036, 0xB3687D81, 0xAD2F2D84, 0xA9EE3033, 0xA4AD16EA, 0xA06C0B5D, 
-  0xD4326D90, 0xD0F37027, 0xDDB056FE, 0xD9714B49, 0xC7361B4C, 0xC3F706FB, 0xCEB42022, 0xCA753D95,
-  0xF23A8028, 0xF6FB9D9F, 0xFBB8BB46, 0xFF79A6F1, 0xE13EF6F4, 0xE5FFEB43, 0xE8BCCD9A, 0xEC7DD02D, 
-  0x34867077, 0x30476DC0, 0x3D044B19, 0x39C556AE, 0x278206AB, 0x23431B1C, 0x2E003DC5, 0x2AC12072, 
-  0x128E9DCF, 0x164F8078, 0x1B0CA6A1, 0x1FCDBB16, 0x018AEB13, 0x054BF6A4, 0x0808D07D, 0x0CC9CDCA, 
-  0x7897AB07, 0x7C56B6B0, 0x71159069, 0x75D48DDE, 0x6B93DDDB, 0x6F52C06C, 0x6211E6B5, 0x66D0FB02, 
-  0x5E9F46BF, 0x5A5E5B08, 0x571D7DD1, 0x53DC6066, 0x4D9B3063, 0x495A2DD4, 0x44190B0D, 0x40D816BA,
-  0xACA5C697, 0xA864DB20, 0xA527FDF9, 0xA1E6E04E, 0xBFA1B04B, 0xBB60ADFC, 0xB6238B25, 0xB2E29692, 
-  0x8AAD2B2F, 0x8E6C3698, 0x832F1041, 0x87EE0DF6, 0x99A95DF3, 0x9D684044, 0x902B669D, 0x94EA7B2A, 
-  0xE0B41DE7, 0xE4750050, 0xE9362689, 0xEDF73B3E, 0xF3B06B3B, 0xF771768C, 0xFA325055, 0xFEF34DE2, 
-  0xC6BCF05F, 0xC27DEDE8, 0xCF3ECB31, 0xCBFFD686, 0xD5B88683, 0xD1799B34, 0xDC3ABDED, 0xD8FBA05A, 
-  0x690CE0EE, 0x6DCDFD59, 0x608EDB80, 0x644FC637, 0x7A089632, 0x7EC98B85, 0x738AAD5C, 0x774BB0EB,
-  0x4F040D56, 0x4BC510E1, 0x46863638, 0x42472B8F, 0x5C007B8A, 0x58C1663D, 0x558240E4, 0x51435D53, 
-  0x251D3B9E, 0x21DC2629, 0x2C9F00F0, 0x285E1D47, 0x36194D42, 0x32D850F5, 0x3F9B762C, 0x3B5A6B9B, 
-  0x0315D626, 0x07D4CB91, 0x0A97ED48, 0x0E56F0FF, 0x1011A0FA, 0x14D0BD4D, 0x19939B94, 0x1D528623, 
-  0xF12F560E, 0xF5EE4BB9, 0xF8AD6D60, 0xFC6C70D7, 0xE22B20D2, 0xE6EA3D65, 0xEBA91BBC, 0xEF68060B, 
-  0xD727BBB6, 0xD3E6A601, 0xDEA580D8, 0xDA649D6F, 0xC423CD6A, 0xC0E2D0DD, 0xCDA1F604, 0xC960EBB3,
-  0xBD3E8D7E, 0xB9FF90C9, 0xB4BCB610, 0xB07DABA7, 0xAE3AFBA2, 0xAAFBE615, 0xA7B8C0CC, 0xA379DD7B, 
-  0x9B3660C6, 0x9FF77D71, 0x92B45BA8, 0x9675461F, 0x8832161A, 0x8CF30BAD, 0x81B02D74, 0x857130C3, 
-  0x5D8A9099, 0x594B8D2E, 0x5408ABF7, 0x50C9B640, 0x4E8EE645, 0x4A4FFBF2, 0x470CDD2B, 0x43CDC09C, 
-  0x7B827D21, 0x7F436096, 0x7200464F, 0x76C15BF8, 0x68860BFD, 0x6C47164A, 0x61043093, 0x65C52D24, 
-  0x119B4BE9, 0x155A565E, 0x18197087, 0x1CD86D30, 0x029F3D35, 0x065E2082, 0x0B1D065B, 0x0FDC1BEC,
-  0x3793A651, 0x3352BBE6, 0x3E119D3F, 0x3AD08088, 0x2497D08D, 0x2056CD3A, 0x2D15EBE3, 0x29D4F654, 
-  0xC5A92679, 0xC1683BCE, 0xCC2B1D17, 0xC8EA00A0, 0xD6AD50A5, 0xD26C4D12, 0xDF2F6BCB, 0xDBEE767C, 
-  0xE3A1CBC1, 0xE760D676, 0xEA23F0AF, 0xEEE2ED18, 0xF0A5BD1D, 0xF464A0AA, 0xF9278673, 0xFDE69BC4, 
-  0x89B8FD09, 0x8D79E0BE, 0x803AC667, 0x84FBDBD0, 0x9ABC8BD5, 0x9E7D9662, 0x933EB0BB, 0x97FFAD0C, 
-  0xAFB010B1, 0xAB710D06, 0xA6322BDF, 0xA2F33668, 0xBCB4666D, 0xB8757BDA, 0xB5365D03, 0xB1F740B4
-   };
-
-cyg_uint32 
-cyg_posix_crc32(unsigned char *s, int len)
-{
-  int i;
-  cyg_uint32 crc32val;
-  unsigned long length;
-  
-  crc32val = 0;
-  for (i = 0;  i < len;  i++) {
-      crc32val = (crc32val << 8) ^ posix_crc32_tab[((crc32val >> 24) ^ *s++) & 0xFF];
-  }
-  length = len;
-  while (length > 0) {
-      crc32val = (crc32val << 8) ^ posix_crc32_tab[((crc32val >> 24) ^ length) & 0xFF];
-      length >>= 8;
-  }
-  crc32val = ~crc32val;
-  return crc32val;
-}
-
diff --git a/components/dfs/filesystems/jffs2/cyg/fileio/fileio.h b/components/dfs/filesystems/jffs2/cyg/fileio/fileio.h
deleted file mode 100644
index d364ae3b45..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/fileio/fileio.h
+++ /dev/null
@@ -1,489 +0,0 @@
-#ifndef CYGONCE_FILEIO_H
-#define CYGONCE_FILEIO_H
-//=============================================================================
-//
-//      fileio.h
-//
-//      Fileio header
-//
-//=============================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####
-// -------------------------------------------
-// This file is part of eCos, the Embedded Configurable Operating System.
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under
-// the terms of the GNU General Public License as published by the Free
-// Software Foundation; either version 2 or (at your option) any later
-// version.
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-// for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with eCos; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-//
-// As a special exception, if other files instantiate templates or use
-// macros or inline functions from this file, or you compile this file
-// and link it with other works to produce a work based on this file,
-// this file does not by itself cause the resulting work to be covered by
-// the GNU General Public License. However the source code for this file
-// must still be made available in accordance with section (3) of the GNU
-// General Public License v2.
-//
-// This exception does not invalidate any other reasons why a work based
-// on this file might be covered by the GNU General Public License.
-// -------------------------------------------
-// ####ECOSGPLCOPYRIGHTEND####
-//=============================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):     nickg
-// Contributors:  nickg
-// Date:          2000-05-25
-// Purpose:       Fileio header
-// Description:   This header contains the external definitions of the general file
-//                IO subsystem for POSIX and EL/IX compatability.
-//
-// Usage:
-//              #include <fileio.h>
-//              ...
-//
-//
-//####DESCRIPTIONEND####
-//
-//=============================================================================
-
-//#include <pkgconf/hal.h>
-//#include <pkgconf/io_fileio.h>
-
-//#include <cyg/infra/cyg_type.h>
-//#include <cyg/hal/hal_tables.h>
-#ifdef CYGFUN_IO_FILEIO_SELECT
-#include <cyg/kernel/kapi.h>
-#endif
-
-#include <stddef.h>             // NULL, size_t
-#include <limits.h>
-#if defined(__GNUC__) && !defined(__CC_ARM)
-#include <sys/types.h>
-#include <fcntl.h>
-#else
-#include <port/sys/types.h>
-#include <port/fcntl.h>
-#endif
-//#include "os_sys_stat.h"//#include <sys/stat.h>
-
-//=============================================================================
-// forward definitions
-
-struct cyg_mtab_entry;
-typedef struct cyg_mtab_entry cyg_mtab_entry;
-
-struct  cyg_fstab_entry;
-typedef struct  cyg_fstab_entry  cyg_fstab_entry;
-
-struct CYG_FILEOPS_TAG;
-typedef struct CYG_FILEOPS_TAG cyg_fileops;
-
-struct CYG_FILE_TAG;
-typedef struct CYG_FILE_TAG cyg_file;
-
-struct CYG_IOVEC_TAG;
-typedef struct CYG_IOVEC_TAG cyg_iovec;
-
-struct CYG_UIO_TAG;
-typedef struct CYG_UIO_TAG cyg_uio;
-
-struct CYG_SELINFO_TAG;
-typedef struct CYG_SELINFO_TAG cyg_selinfo;
-
-//=============================================================================
-// Directory pointer
-
-typedef CYG_ADDRWORD cyg_dir;
-
-#define CYG_DIR_NULL 0
-
-//=============================================================================
-// Filesystem table entry
-
-typedef int     cyg_fsop_mount    ( cyg_fstab_entry *fste, cyg_mtab_entry *mte );
-typedef int     cyg_fsop_umount   ( cyg_mtab_entry *mte );
-typedef int     cyg_fsop_open     ( cyg_mtab_entry *mte, cyg_dir dir, const char *name,
-                                    int mode,  cyg_file *fte );
-typedef int     cyg_fsop_unlink   ( cyg_mtab_entry *mte, cyg_dir dir, const char *name );
-typedef int     cyg_fsop_mkdir    ( cyg_mtab_entry *mte, cyg_dir dir, const char *name );
-typedef int     cyg_fsop_rmdir    ( cyg_mtab_entry *mte, cyg_dir dir, const char *name );
-typedef int     cyg_fsop_rename   ( cyg_mtab_entry *mte, cyg_dir dir1, const char *name1,
-                                    cyg_dir dir2, const char *name2 );
-typedef int     cyg_fsop_link     ( cyg_mtab_entry *mte, cyg_dir dir1, const char *name1,
-                                    cyg_dir dir2, const char *name2, int type );
-typedef int     cyg_fsop_opendir  ( cyg_mtab_entry *mte, cyg_dir dir, const char *name,
-                                    cyg_file *fte );
-typedef int     cyg_fsop_chdir    ( cyg_mtab_entry *mte, cyg_dir dir, const char *name,
-                                    cyg_dir *dir_out );
-typedef int     cyg_fsop_stat     ( cyg_mtab_entry *mte, cyg_dir dir, const char *name,
-                                    struct stat *buf);
-typedef int     cyg_fsop_getinfo  ( cyg_mtab_entry *mte, cyg_dir dir, const char *name,
-                                    int key, void *buf, int len );
-typedef int     cyg_fsop_setinfo  ( cyg_mtab_entry *mte, cyg_dir dir, const char *name,
-                                    int key, void *buf, int len );
-
-
-struct cyg_fstab_entry
-{
-    const char          *name;          // filesystem name
-    CYG_ADDRWORD        data;           // private data value
-//#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-//    struct rt_mutex     syncmode;       // synchronization mode
-//#endif
-    cyg_uint32          syncmode;       // synchronization mode
-    cyg_fsop_mount      *mount;
-    cyg_fsop_umount     *umount;
-    cyg_fsop_open       *open;
-    cyg_fsop_unlink     *unlink;
-    cyg_fsop_mkdir      *mkdir;
-    cyg_fsop_rmdir      *rmdir;
-    cyg_fsop_rename     *rename;
-    cyg_fsop_link       *link;
-    cyg_fsop_opendir    *opendir;
-    cyg_fsop_chdir      *chdir;
-    cyg_fsop_stat       *stat;
-    cyg_fsop_getinfo    *getinfo;
-    cyg_fsop_setinfo    *setinfo;
-} ;// CYG_HAL_TABLE_TYPE;   //prife
-
-//-----------------------------------------------------------------------------
-// Keys for getinfo() and setinfo()
-
-#define FS_INFO_CONF            1       /* pathconf() */
-#define FS_INFO_ACCESS          2       /* access() */
-#define FS_INFO_GETCWD          3       /* getcwd() */
-#define FS_INFO_SYNC            4       /* cyg_fs_fssync() */
-#define FS_INFO_ATTRIB          5       /* cyg_fs_(get|set)_attrib() */
-#ifdef  CYGSEM_FILEIO_INFO_DISK_USAGE
-#define FS_INFO_DISK_USAGE      6       /* get_disk_usage()    */
-#endif
-#define FS_INFO_CHMOD           7       /* chmod() */
-
-//-----------------------------------------------------------------------------
-// Types for link()
-
-#define CYG_FSLINK_HARD         1       /* form a hard link */
-#define CYG_FSLINK_SOFT         2       /* form a soft link */
-
-//-----------------------------------------------------------------------------
-// getinfo() and setinfo() buffers structures.
-
-struct cyg_getcwd_info
-{
-    char        *buf;           /* buffer for cwd string */
-    size_t      size;           /* size of buffer */
-};
-
-struct cyg_fs_disk_usage{
-  cyg_uint64 total_blocks;
-  cyg_uint64 free_blocks;
-  cyg_uint32 block_size;
-};
-
-typedef cyg_uint32 cyg_fs_attrib_t;
-
-//-----------------------------------------------------------------------------
-// Macro to define an initialized fstab entry
-
-#define FSTAB_ENTRY( _l, _name, _data, _syncmode, _mount, _umount,      \
-                     _open, _unlink,  _mkdir, _rmdir, _rename, _link,   \
-                     _opendir, _chdir, _stat, _getinfo, _setinfo)       \
-struct cyg_fstab_entry _l /*CYG_HAL_TABLE_ENTRY(fstab) prife*/ =                  \
-{                                                                       \
-    _name,                                                              \
-    _data,                                                              \
-    _syncmode,                                                          \
-    _mount,                                                             \
-    _umount,                                                            \
-    _open,                                                              \
-    _unlink,                                                            \
-    _mkdir,                                                             \
-    _rmdir,                                                             \
-    _rename,                                                            \
-    _link,                                                              \
-    _opendir,                                                           \
-    _chdir,                                                             \
-    _stat,                                                              \
-    _getinfo,                                                           \
-    _setinfo                                                            \
-};
-
-//=============================================================================
-// Mount table entry
-
-struct cyg_mtab_entry
-{
-    const char          *name;          // name of mount point
-    const char          *fsname;        // name of implementing filesystem
-    const char          *devname;       // name of hardware device
-    CYG_ADDRWORD        data;           // private data value
-
-    // The following are filled in after a successful mount operation
-    cyg_bool            valid;          // Valid entry?
-    cyg_fstab_entry     *fs;            // pointer to fstab entry
-    cyg_dir             root;           // root directory pointer
-} ; // CYG_HAL_TABLE_TYPE;  // prife
-
-
-// This macro defines an initialized mtab entry
-
-#define MTAB_ENTRY( _l, _name, _fsname, _devname, _data )       \
-struct cyg_mtab_entry _l /*CYG_HAL_TABLE_ENTRY(mtab)  prife */ =            \
-{                                                               \
-    _name,                                                      \
-    _fsname,                                                    \
-    _devname,                                                   \
-    _data,                                                      \
-    false,                                                      \
-    NULL,                                                       \
-    CYG_DIR_NULL                                                \
-};
-
-//=============================================================================
-// IO vector descriptors
-
-struct CYG_IOVEC_TAG
-{
-    void           *iov_base;           /* Base address. */
-    ssize_t        iov_len;             /* Length. */
-};
-
-enum	cyg_uio_rw { UIO_READ, UIO_WRITE };
-
-/* Segment flag values. */
-enum cyg_uio_seg
-{
-    UIO_USERSPACE,		        /* from user data space */
-    UIO_SYSSPACE		        /* from system space */
-};
-
-struct CYG_UIO_TAG
-{
-    struct CYG_IOVEC_TAG *uio_iov;	/* pointer to array of iovecs */
-    int	                 uio_iovcnt;	/* number of iovecs in array */
-    off_t       	 uio_offset;	/* offset into file this uio corresponds to */
-    ssize_t     	 uio_resid;	/* residual i/o count */
-    enum cyg_uio_seg     uio_segflg;    /* see above */
-    enum cyg_uio_rw      uio_rw;        /* see above */
-};
-
-// Limits
-#define UIO_SMALLIOV	8		/* 8 on stack, else malloc */
-
-//=============================================================================
-// Description of open file
-
-typedef int cyg_fileop_readwrite (struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
-typedef cyg_fileop_readwrite cyg_fileop_read;
-typedef cyg_fileop_readwrite cyg_fileop_write;
-typedef int cyg_fileop_lseek   (struct CYG_FILE_TAG *fp, off_t *pos, int whence );
-typedef int cyg_fileop_ioctl   (struct CYG_FILE_TAG *fp, CYG_ADDRWORD com,
-                                CYG_ADDRWORD data);
-typedef cyg_bool cyg_fileop_select  (struct CYG_FILE_TAG *fp, int which, CYG_ADDRWORD info);
-typedef int cyg_fileop_fsync   (struct CYG_FILE_TAG *fp, int mode );
-typedef int cyg_fileop_close   (struct CYG_FILE_TAG *fp);
-typedef int cyg_fileop_fstat   (struct CYG_FILE_TAG *fp, struct stat *buf );
-typedef int cyg_fileop_getinfo (struct CYG_FILE_TAG *fp, int key, void *buf, int len );
-typedef int cyg_fileop_setinfo (struct CYG_FILE_TAG *fp, int key, void *buf, int len );
-
-struct CYG_FILEOPS_TAG
-{
-    cyg_fileop_read     *fo_read;
-    cyg_fileop_write    *fo_write;
-    cyg_fileop_lseek    *fo_lseek;
-    cyg_fileop_ioctl    *fo_ioctl;
-    cyg_fileop_select   *fo_select;
-    cyg_fileop_fsync    *fo_fsync;
-    cyg_fileop_close    *fo_close;
-    cyg_fileop_fstat    *fo_fstat;
-    cyg_fileop_getinfo  *fo_getinfo;
-    cyg_fileop_setinfo  *fo_setinfo;
-};
-
-struct CYG_FILE_TAG
-{
-    cyg_uint32	                f_flag;		    /* file state                   */
-    cyg_uint16                  f_ucount;       /* use count                    */
-    cyg_uint16                  f_type;		    /* descriptor type              */
-    cyg_uint32                  f_syncmode;     /* synchronization protocol     */
-    struct CYG_FILEOPS_TAG      *f_ops;         /* file operations              */
-    off_t       	            f_offset;       /* current offset               */
-    CYG_ADDRWORD	            f_data;		    /* file or socket               */
-    CYG_ADDRWORD                f_xops;         /* extra type specific ops      */
-    cyg_mtab_entry              *f_mte;         /* mount table entry            */
-};
-
-//-----------------------------------------------------------------------------
-// File flags
-
-// Allocation here is that bits 0..15 are copies of bits from the open
-// flags, bits 16..23 are extra bits that are visible to filesystems but
-// are not derived from the open call, and bits 24..31 are reserved for
-// the fileio infrastructure.
-#define CYG_FREAD       O_RDONLY
-#define CYG_FWRITE      O_WRONLY
-#define CYG_FNONBLOCK   O_NONBLOCK
-#define CYG_FAPPEND     O_APPEND
-#define CYG_FASYNC      0x00010000
-#define CYG_FDIR        0x00020000
-
-#define CYG_FLOCKED     0x01000000  // Set if file is locked
-#define CYG_FLOCK       0x02000000  // Lock during file ops
-#define CYG_FALLOC      0x80000000  // File is "busy", i.e. allocated
-
-// Mask for open mode bits stored in file object
-#define CYG_FILE_MODE_MASK (CYG_FREAD|CYG_FWRITE|CYG_FNONBLOCK|CYG_FAPPEND)
-
-//-----------------------------------------------------------------------------
-// Type of file
-
-#define	CYG_FILE_TYPE_FILE      1	/* file */
-#define	CYG_FILE_TYPE_SOCKET	2	/* communications endpoint */
-#define	CYG_FILE_TYPE_DEVICE	3	/* device */
-
-//-----------------------------------------------------------------------------
-// Keys for getinfo() and setinfo()
-
-#define FILE_INFO_CONF          1       /* fpathconf() */
-
-//-----------------------------------------------------------------------------
-// Modes for fsync()
-
-#define CYG_FSYNC              1
-#define CYG_FDATASYNC          2
-
-//-----------------------------------------------------------------------------
-// Get/set info buffer structures
-
-// This is used for pathconf() and fpathconf()
-struct cyg_pathconf_info
-{
-    int         name;           // POSIX defined variable name
-    long        value;          // Returned variable value
-};
-
-//=============================================================================
-// Synchronization modes
-// These values are filled into the syncmode fields of the above structures
-// and define the synchronization protocol used when accessing the object in
-// question.
-
-#define CYG_SYNCMODE_NONE               (0)     // no locking required
-
-#define CYG_SYNCMODE_FILE_FILESYSTEM    0x0002  // lock fs during file ops
-#define CYG_SYNCMODE_FILE_MOUNTPOINT    0x0004  // lock mte during file ops
-#define CYG_SYNCMODE_IO_FILE            0x0010  // lock file during io ops
-#define CYG_SYNCMODE_IO_FILESYSTEM      0x0020  // lock fs during io ops
-#define CYG_SYNCMODE_IO_MOUNTPOINT      0x0040  // lock mte during io ops
-#define CYG_SYNCMODE_SOCK_FILE          0x0100  // lock socket during socket ops
-#define CYG_SYNCMODE_SOCK_NETSTACK      0x0800  // lock netstack during socket ops
-
-#define CYG_SYNCMODE_IO_SHIFT           (4)     // shift for IO to file bits
-#define CYG_SYNCMODE_SOCK_SHIFT         (8)     // shift for sock to file bits
-
-//=============================================================================
-// Mount and umount functions
-
-__externC int mount( const char *devname,
-                     const char *dir,
-                     const char *fsname);
-
-__externC int umount( const char *name);
-
-//=============================================================================
-// Get/Set info functions
-
-__externC int cyg_fs_getinfo( const char *path, int key, void *buf, int len );
-__externC int cyg_fs_setinfo( const char *path, int key, void *buf, int len );
-__externC int cyg_fs_fgetinfo( int fd, int key, void *buf, int len );
-__externC int cyg_fs_fsetinfo( int fd, int key, void *buf, int len );
-
-#ifdef CYGFUN_IO_FILEIO_SELECT
-//=============================================================================
-// Select support
-
-//-----------------------------------------------------------------------------
-// Data structure for embedding in client data structures. A pointer to this
-// must be passed to cyg_selrecord() and cyg_selwakeup().
-
-struct CYG_SELINFO_TAG
-{
-    CYG_ADDRWORD        si_info;        // info passed through from fo_select()
-    cyg_flag_value_t    si_waitFlag;    // select wait flags
-};
-
-//-----------------------------------------------------------------------------
-// Select support functions.
-
-// cyg_selinit() is used to initialize a selinfo structure.
-__externC void cyg_selinit( struct CYG_SELINFO_TAG *sip );
-
-// cyg_selrecord() is called when a client device needs to register
-// the current thread for selection.
-__externC void cyg_selrecord( CYG_ADDRWORD info, struct CYG_SELINFO_TAG *sip );
-
-// cyg_selwakeup() is called when the client device matches the select
-// criterion, and needs to wake up a selector.
-__externC void cyg_selwakeup( struct CYG_SELINFO_TAG *sip );
-#endif
-//=============================================================================
-// Timestamp support
-
-// Provides the current time as a time_t timestamp for use in filesystem
-// data strucures.
-
-__externC time_t jffs2_get_timestamp(void);
-
-//=============================================================================
-// Miscellaneous functions.
-
-// Provide a function to synchronize an individual file system. (ie write
-// file and directory information to disk)
-__externC int cyg_fs_fssync(const char *path);
-
-// Functions to set and get attributes of a file, eg FAT attributes
-// like hidden and system.
-__externC int cyg_fs_set_attrib( const char *fname,
-                                 const cyg_fs_attrib_t new_attrib );
-__externC int cyg_fs_get_attrib( const char *fname,
-                                 cyg_fs_attrib_t * const file_attrib );
-
-// Functions to lock and unlock a filesystem. These are normally used
-// internally by the fileio layer, but the file system might need to
-// use them when it needs to lock itself, eg when performing garbage
-// collect.
-__externC void cyg_fs_lock( cyg_mtab_entry *mte, cyg_uint32 syncmode );
-
-__externC void cyg_fs_unlock( cyg_mtab_entry *mte, cyg_uint32 syncmode );
-
-// To be able to lock the filesystem you need the mte. This function
-// allows the table of mounted filesystems to be searched to find an
-// mte which uses the give filesystem root.
-
-__externC cyg_mtab_entry * cyg_fs_root_lookup( cyg_dir *root );
-
-//=============================================================================
-// Default functions.
-// Cast to the appropriate type, these functions can be put into any of
-// the operation table slots to provide the defined error code.
-
-__externC int cyg_fileio_enosys(void);
-__externC int cyg_fileio_erofs(void);
-__externC int cyg_fileio_enoerr(void);
-__externC int cyg_fileio_enotdir(void);
-__externC cyg_fileop_select cyg_fileio_seltrue;
-
-//-----------------------------------------------------------------------------
-#endif // ifndef CYGONCE_FILEIO_H
-// End of fileio.h
diff --git a/components/dfs/filesystems/jffs2/cyg/hal/basetype.h b/components/dfs/filesystems/jffs2/cyg/hal/basetype.h
deleted file mode 100644
index 6f3455c0df..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/hal/basetype.h
+++ /dev/null
@@ -1,91 +0,0 @@
-#ifndef CYGONCE_HAL_BASETYPE_H
-#define CYGONCE_HAL_BASETYPE_H
-
-//=============================================================================
-//
-//      basetype.h
-//
-//      Standard types for this architecture.
-//
-//=============================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//=============================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):   nickg, gthomas
-// Contributors:  nickg, gthomas
-// Date:        1998-09-11
-// Purpose:     Define architecture base types.
-// Usage:       Included by "cyg_type.h", do not use directly
-
-//              
-//####DESCRIPTIONEND####
-//
-
-//-----------------------------------------------------------------------------
-// Characterize the architecture
-
-#ifdef __ARMEB__
-# define CYG_BYTEORDER           CYG_MSBFIRST    // Big endian
-#else
-# define CYG_BYTEORDER           CYG_LSBFIRST    // Little endian
-#endif
-
-#if defined(__ARMEL__) && defined(__VFP_FP__)
-# define CYG_DOUBLE_BYTEORDER    CYG_LSBFIRST
-#else
-# define CYG_DOUBLE_BYTEORDER    CYG_MSBFIRST    // Big? endian
-#endif
-
-//-----------------------------------------------------------------------------
-// ARM does not usually use labels with underscores.
-
-#define CYG_LABEL_NAME(_name_) _name_
-#define CYG_LABEL_DEFN(_name_) _name_
-
-//-----------------------------------------------------------------------------
-// Override the alignment definitions from cyg_type.h. ARM only allows 4 
-// byte alignment whereas the default is 8 byte.
-
-#define CYGARC_ALIGNMENT 4
-#define CYGARC_P2ALIGNMENT 2
-
-//-----------------------------------------------------------------------------
-// Define the standard variable sizes
-
-// The ARM architecture uses the default definitions of the base types,
-// so we do not need to define any here.
-
-//-----------------------------------------------------------------------------
-#endif // CYGONCE_HAL_BASETYPE_H
-// End of basetype.h
diff --git a/components/dfs/filesystems/jffs2/cyg/hal/drv_api.h b/components/dfs/filesystems/jffs2/cyg/hal/drv_api.h
deleted file mode 100644
index de4346673c..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/hal/drv_api.h
+++ /dev/null
@@ -1,250 +0,0 @@
-#ifndef CYGONCE_HAL_DRV_API_H
-#define CYGONCE_HAL_DRV_API_H
-
-/*==========================================================================
-//
-//      drv_api.h
-//
-//      Native API for Kernel
-//
-//==========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):   nickg
-// Date:        1999-02-24
-// Purpose:     Driver API
-// Description: This file defines the API used by device drivers to access
-//              system services. When the kernel is present it maps directly
-//              to the Kernel C API. When the kernel is absent, it is provided
-//              by a set of HAL functions.
-//              
-// Usage:       #include <cyg/kernel/kapi.h>
-//
-//####DESCRIPTIONEND####
-//
-//========================================================================*/
-
-//#include <pkgconf/hal.h>  //mod by prife
-#include <cyg/infra/cyg_type.h>
-
-#ifdef CYGPKG_KERNEL
-
-/*------------------------------------------------------------------------*/
-/* Kernel co-resident version of API                                      */
-
-#include <pkgconf/kernel.h>
-
-#ifndef CYGFUN_KERNEL_API_C
-#error Driver API requres Kernel API to be present
-#endif
-
-#include <cyg/kernel/kapi.h>
-
-#define cyg_drv_isr_lock                    cyg_interrupt_disable
-#define cyg_drv_isr_unlock                  cyg_interrupt_enable
-                                     
-#define cyg_drv_dsr_lock                    cyg_scheduler_lock
-#define cyg_drv_dsr_unlock                  cyg_scheduler_unlock
-                                     
-#define cyg_drv_mutex_t                     cyg_mutex_t
-#define cyg_drv_mutex_init                  cyg_mutex_init
-#define cyg_drv_mutex_destroy               cyg_mutex_destroy
-#define cyg_drv_mutex_lock                  cyg_mutex_lock
-#define cyg_drv_mutex_trylock               cyg_mutex_trylock
-#define cyg_drv_mutex_unlock                cyg_mutex_unlock
-#define cyg_drv_mutex_release               cyg_mutex_release
-                                     
-#define cyg_drv_cond_t                      cyg_cond_t
-#define cyg_drv_cond_init                   cyg_cond_init
-#define cyg_drv_cond_destroy                cyg_cond_destroy
-#define cyg_drv_cond_wait                   cyg_cond_wait
-#define cyg_drv_cond_signal                 cyg_cond_signal
-#define cyg_drv_cond_broadcast              cyg_cond_broadcast
-                                     
-#define cyg_drv_interrupt_create            cyg_interrupt_create
-#define cyg_drv_interrupt_delete            cyg_interrupt_delete
-#define cyg_drv_interrupt_attach            cyg_interrupt_attach
-#define cyg_drv_interrupt_detach            cyg_interrupt_detach
-#define cyg_drv_interrupt_mask              cyg_interrupt_mask
-#define cyg_drv_interrupt_unmask            cyg_interrupt_unmask
-#define cyg_drv_interrupt_mask_intunsafe    cyg_interrupt_mask_intunsafe
-#define cyg_drv_interrupt_unmask_intunsafe  cyg_interrupt_unmask_intunsafe
-#define cyg_drv_interrupt_acknowledge       cyg_interrupt_acknowledge
-#define cyg_drv_interrupt_configure         cyg_interrupt_configure
-#define cyg_drv_interrupt_level             cyg_interrupt_level
-#define cyg_drv_interrupt_set_cpu           cyg_interrupt_set_cpu
-#define cyg_drv_interrupt_get_cpu           cyg_interrupt_get_cpu
-                                          
-#define cyg_drv_spinlock_t                  cyg_spinlock_t
-#define cyg_drv_spinlock_init               cyg_spinlock_init
-#define cyg_drv_spinlock_spin               cyg_spinlock_spin
-#define cyg_drv_spinlock_clear              cyg_spinlock_clear
-#define cyg_drv_spinlock_try                cyg_spinlock_try
-#define cyg_drv_spinlock_test               cyg_spinlock_test
-#define cyg_drv_spinlock_spin_intsave       cyg_spinlock_spin_intsave
-#define cyg_drv_spinlock_clear_intsave      cyg_spinlock_clear_intsave
-
-#else /* CYGPKG_KERNEL */
-
-/*------------------------------------------------------------------------*/
-/* Non-kernel version of API                                              */
-                                          
-typedef CYG_ADDRWORD cyg_addrword_t;        /* May hold pointer or word   */
-typedef cyg_addrword_t cyg_handle_t;        /* Object handle              */
-typedef cyg_uint32   cyg_priority_t;        /* type for priorities        */
-typedef cyg_uint32   cyg_vector_t;          /* Interrupt vector id        */
-typedef cyg_uint32   cyg_cpu_t;             /* CPU id                     */
-typedef int          cyg_bool_t;            
-typedef cyg_int32    cyg_code_t;            /* type for various codes     */
-
-typedef cyg_uint32 cyg_ISR_t( cyg_vector_t vector, cyg_addrword_t data);
-typedef void cyg_DSR_t(cyg_vector_t vector,
-                       cyg_ucount32 count,
-                       cyg_addrword_t data);
-
-
-externC void cyg_drv_isr_lock(void);
-externC void cyg_drv_isr_unlock(void);
-
-externC void cyg_drv_dsr_lock(void);
-externC void cyg_drv_dsr_unlock(void);
-
-typedef struct
-{
-    cyg_atomic          lock;
-} cyg_drv_mutex_t;
-
-externC void cyg_drv_mutex_init( cyg_drv_mutex_t *mutex );
-externC void cyg_drv_mutex_destroy( cyg_drv_mutex_t *mutex );
-externC cyg_bool_t cyg_drv_mutex_lock( cyg_drv_mutex_t *mutex );
-externC cyg_bool_t cyg_drv_mutex_trylock( cyg_drv_mutex_t *mutex );
-externC void cyg_drv_mutex_unlock( cyg_drv_mutex_t *mutex );
-externC void cyg_drv_mutex_release( cyg_drv_mutex_t *mutex );
-
-typedef struct
-{
-    cyg_atomic          wait;
-    cyg_drv_mutex_t       *mutex;
-} cyg_drv_cond_t;
-
-externC void cyg_drv_cond_init( cyg_drv_cond_t  *cond, cyg_drv_mutex_t *mutex );
-externC void cyg_drv_cond_destroy( cyg_drv_cond_t  *cond );
-externC cyg_bool_t cyg_drv_cond_wait( cyg_drv_cond_t *cond );
-externC void cyg_drv_cond_signal( cyg_drv_cond_t *cond );
-externC void cyg_drv_cond_broadcast( cyg_drv_cond_t *cond );
-
-typedef struct cyg_interrupt
-{
-    cyg_vector_t        vector;
-    cyg_priority_t      priority;
-    cyg_ISR_t           *isr;
-    cyg_DSR_t           *dsr;
-    CYG_ADDRWORD        data;
-
-    struct cyg_interrupt* volatile next_dsr;
-    volatile cyg_int32             dsr_count;
-    
-#ifdef CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN
-    struct cyg_interrupt *next;
-#endif
-
-} cyg_interrupt;
-
-externC void cyg_drv_interrupt_create(
-                     cyg_vector_t        vector,
-                     cyg_priority_t      priority,
-                     cyg_addrword_t      data,
-                     cyg_ISR_t           *isr,
-                     cyg_DSR_t           *dsr,
-                     cyg_handle_t        *handle,
-                     cyg_interrupt       *intr
-                     );
-externC void cyg_drv_interrupt_delete( cyg_handle_t interrupt );
-externC void cyg_drv_interrupt_attach( cyg_handle_t interrupt );
-externC void cyg_drv_interrupt_detach( cyg_handle_t interrupt );
-
-externC void cyg_drv_interrupt_mask( cyg_vector_t vector );
-externC void cyg_drv_interrupt_mask_intunsafe( cyg_vector_t vector );
-externC void cyg_drv_interrupt_unmask( cyg_vector_t vector );
-externC void cyg_drv_interrupt_unmask_intunsafe( cyg_vector_t vector );
-externC void cyg_drv_interrupt_acknowledge( cyg_vector_t vector );
-externC void cyg_drv_interrupt_configure(
-                     cyg_vector_t        vector,
-                     cyg_bool_t          level,
-                     cyg_bool_t          up
-                     );
-externC void cyg_drv_interrupt_level( cyg_vector_t vector, cyg_priority_t level );
-externC void cyg_drv_interrupt_set_cpu( cyg_vector_t vector, cyg_cpu_t cpu );
-externC cyg_cpu_t cyg_drv_interrupt_get_cpu( cyg_vector_t vector );
-
-
-enum cyg_ISR_results
-{
-    CYG_ISR_HANDLED  = 1,               /* Interrupt was handled             */
-    CYG_ISR_CALL_DSR = 2                /* Schedule DSR                      */
-};
-
-
-typedef struct
-{
-    cyg_atomic          lock;
-} cyg_drv_spinlock_t;
-
-void cyg_drv_spinlock_init(
-    cyg_drv_spinlock_t  *lock,          /* spinlock to initialize            */
-    cyg_bool_t          locked          /* init locked or unlocked           */
-);
-
-void cyg_drv_spinlock_destroy( cyg_drv_spinlock_t *lock );
-
-void cyg_drv_spinlock_spin( cyg_drv_spinlock_t *lock );
-
-void cyg_drv_spinlock_clear( cyg_drv_spinlock_t *lock );
-
-cyg_bool_t cyg_drv_spinlock_try( cyg_drv_spinlock_t *lock );
-
-cyg_bool_t cyg_drv_spinlock_test( cyg_drv_spinlock_t *lock );
-
-void cyg_drv_spinlock_spin_intsave( cyg_drv_spinlock_t *lock,
-                                    cyg_addrword_t *istate );
-
-void cyg_drv_spinlock_clear_intsave( cyg_drv_spinlock_t *lock,
-                                     cyg_addrword_t istate );
-
-#endif /* CYGPKG_KERNEL */
-
-/*------------------------------------------------------------------------*/
-/* EOF drv_api.h                                                          */
-#endif // CYGONCE_HAL_DRV_API_H
diff --git a/components/dfs/filesystems/jffs2/cyg/infra/cyg_type.h b/components/dfs/filesystems/jffs2/cyg/infra/cyg_type.h
deleted file mode 100644
index 01b60c5099..0000000000
--- a/components/dfs/filesystems/jffs2/cyg/infra/cyg_type.h
+++ /dev/null
@@ -1,544 +0,0 @@
-#ifndef CYGONCE_INFRA_CYG_TYPE_H
-#define CYGONCE_INFRA_CYG_TYPE_H
-
-//==========================================================================
-//
-//      cyg_type.h
-//
-//      Standard types, and some useful coding macros.
-//
-//==========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2009 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):   nickg from an original by hmt
-// Contributors:  nickg
-// Date:        1997-09-08
-// Purpose:     share unambiguously sized types.
-// Description: we typedef [cyg_][u]int8,16,32 &c for general use.
-// Usage:       #include "cyg/infra/cyg_type.h"
-//              ...
-//              cyg_int32 my_32bit_integer;
-//              
-//####DESCRIPTIONEND####
-//
-
-#include <stddef.h>           // Definition of NULL from the compiler
-
-// -------------------------------------------------------------------------
-// Some useful macros. These are defined here by default.
-
-// __externC is used in mixed C/C++ headers to force C linkage on an external
-// definition. It avoids having to put all sorts of ifdefs in.
-
-#ifdef __cplusplus
-# define __externC extern "C"
-#else
-# define __externC extern
-#endif
-// Also define externC for now - but it is deprecated
-#define externC __externC
-
-// Compiler version.
-#ifdef __GNUC__
-# if defined(__GNU_PATCHLEVEL__)
-#  define __GNUC_VERSION__ (__GNUC__ * 10000 \
-                             + __GNUC_MINOR__ * 100 \
-                             + __GNUC_PATCHLEVEL__)
-# else
-#  define __GNUC_VERSION__ (__GNUC__ * 10000 \
-                             + __GNUC_MINOR__ * 100)
-# endif
-#endif
-
-// -------------------------------------------------------------------------
-// The header <basetype.h> defines the base types used here. It is
-// supplied either by the target architecture HAL, or by the host
-// porting kit. They are all defined as macros, and only those that
-// make choices other than the defaults given below need be defined.
-
-#define CYG_LSBFIRST 1234
-#define CYG_MSBFIRST 4321
-
-#include <cyg/hal/basetype.h>
-
-#if (CYG_BYTEORDER != CYG_LSBFIRST) && (CYG_BYTEORDER != CYG_MSBFIRST)
-# error You must define CYG_BYTEORDER to equal CYG_LSBFIRST or CYG_MSBFIRST
-#endif
-
-#ifndef CYG_DOUBLE_BYTEORDER
-#define CYG_DOUBLE_BYTEORDER CYG_BYTEORDER
-#endif
-
-#ifndef cyg_halint8
-# define cyg_halint8 char
-#endif
-#ifndef cyg_halint16
-# define cyg_halint16 short
-#endif
-#ifndef cyg_halint32
-# define cyg_halint32 int
-#endif
-#ifndef cyg_halint64
-# define cyg_halint64 long long
-#endif
-
-#ifndef cyg_halcount8
-# define cyg_halcount8 int
-#endif
-#ifndef cyg_halcount16
-# define cyg_halcount16 int
-#endif
-#ifndef cyg_halcount32
-# define cyg_halcount32 int
-#endif
-#ifndef cyg_halcount64
-# define cyg_halcount64 long long
-#endif
-
-#ifndef cyg_haladdress
-# define cyg_haladdress cyg_uint32
-#endif
-#ifndef cyg_haladdrword
-# define cyg_haladdrword cyg_uint32
-#endif
-
-#ifndef cyg_halbool
-# define cyg_halbool int
-#endif
-
-#ifndef cyg_halatomic
-# define cyg_halatomic cyg_halint8
-#endif
-
-// -------------------------------------------------------------------------
-// Provide a default architecture alignment
-// This may be overridden in basetype.h if necessary.
-// These should be straightforward numbers to allow use in assembly.
-
-#ifndef CYGARC_ALIGNMENT
-# define CYGARC_ALIGNMENT 8
-#endif
-// And corresponding power of two alignment
-#ifndef CYGARC_P2ALIGNMENT
-# define CYGARC_P2ALIGNMENT 3
-#endif
-#if (CYGARC_ALIGNMENT) != (1 << CYGARC_P2ALIGNMENT)
-# error "Inconsistent CYGARC_ALIGNMENT and CYGARC_P2ALIGNMENT values"
-#endif
-
-// -------------------------------------------------------------------------
-// The obvious few that compilers may define for you.
-// But in case they don't:
-
-#ifndef NULL
-# define NULL 0
-#endif
-
-#ifndef __cplusplus
-
-typedef cyg_halbool bool;
-
-# ifndef false
-#  define false 0
-# endif
-
-# ifndef true
-#  define true (!false)
-# endif
-
-#endif
-
-// -------------------------------------------------------------------------
-// Allow creation of procedure-like macros that are a single statement,
-// and must be followed by a semi-colon
-
-#define CYG_MACRO_START do {
-#define CYG_MACRO_END   } while (0)
-
-#define CYG_EMPTY_STATEMENT CYG_MACRO_START CYG_MACRO_END
-
-#define CYG_UNUSED_PARAM( _type_, _name_ ) CYG_MACRO_START      \
-  _type_ __tmp1 = (_name_);                                     \
-  _type_ __tmp2 = __tmp1;                                       \
-  __tmp1 = __tmp2;                                              \
-CYG_MACRO_END
-
-
-//----------------------------------------------------------------------------
-// The unused attribute stops the compiler warning about the variable
-// not being used.
-// The used attribute prevents the compiler from optimizing it away.
-
-#define CYG_REFERENCE_OBJECT(__object__)                            \
-    CYG_MACRO_START                                                 \
-    static const void*  __cygvar_discard_me__                       \
-    __attribute__ ((unused, used)) = (const void*)&(__object__);    \
-    CYG_MACRO_END
-
-// -------------------------------------------------------------------------
-// Define basic types for using integers in memory and structures;
-// depends on compiler defaults and CPU type.
-
-typedef unsigned cyg_halint8    cyg_uint8  ;
-typedef   signed cyg_halint8    cyg_int8   ;
-
-typedef unsigned cyg_halint16   cyg_uint16 ;
-typedef   signed cyg_halint16   cyg_int16  ;
-
-typedef unsigned cyg_halint32   cyg_uint32 ;
-typedef   signed cyg_halint32   cyg_int32  ;
-
-typedef unsigned cyg_halint64   cyg_uint64 ;
-typedef   signed cyg_halint64   cyg_int64  ;
-
-typedef  cyg_halbool            cyg_bool   ;
-
-// -------------------------------------------------------------------------
-// Define types for using integers in registers for looping and the like;
-// depends on CPU type, choose what it is most comfortable with, with at
-// least the range required.
-
-typedef unsigned cyg_halcount8  cyg_ucount8  ;
-typedef   signed cyg_halcount8  cyg_count8   ;
-
-typedef unsigned cyg_halcount16 cyg_ucount16 ;
-typedef   signed cyg_halcount16 cyg_count16  ;
-
-typedef unsigned cyg_halcount32 cyg_ucount32 ;
-typedef   signed cyg_halcount32 cyg_count32  ;
-
-typedef unsigned cyg_halcount64 cyg_ucount64 ;
-typedef   signed cyg_halcount64 cyg_count64  ;
-
-// -------------------------------------------------------------------------
-// Define a type to be used for atomic accesses. This type is guaranteed
-// to be read or written in a single uninterruptible operation. This type
-// is at least a single byte.
-
-typedef volatile unsigned cyg_halatomic  cyg_atomic;
-typedef volatile unsigned cyg_halatomic  CYG_ATOMIC;
-
-// -------------------------------------------------------------------------
-// Define types for access plain, on-the-metal memory or devices.
-
-typedef cyg_uint32  CYG_WORD;
-typedef cyg_uint8   CYG_BYTE;
-typedef cyg_uint16  CYG_WORD16;
-typedef cyg_uint32  CYG_WORD32;
-typedef cyg_uint64  CYG_WORD64;
-
-typedef cyg_haladdress  CYG_ADDRESS;
-typedef cyg_haladdrword CYG_ADDRWORD;
-
-// -------------------------------------------------------------------------
-// Number of elements in a (statically allocated) array.
-
-#define CYG_NELEM(a) (sizeof(a) / sizeof((a)[0]))
-
-// -------------------------------------------------------------------------
-// Constructor ordering macros.  These are added as annotations to all
-// static objects to order the constuctors appropriately.
-
-#if defined(__cplusplus) && defined(__GNUC__) && \
-    !defined(CYGBLD_ATTRIB_INIT_PRI)
-# define CYGBLD_ATTRIB_INIT_PRI( _pri_ ) __attribute__((init_priority(_pri_)))
-#elif !defined(CYGBLD_ATTRIB_INIT_PRI)
-// FIXME: should maybe just bomb out if this is attempted anywhere else?
-// Not sure
-# define CYGBLD_ATTRIB_INIT_PRI( _pri_ )
-#endif
-    
-// The following will be removed eventually as it doesn't allow the use of
-// e.g. pri+5 format
-#define CYG_INIT_PRIORITY( _pri_ ) CYGBLD_ATTRIB_INIT_PRI( CYG_INIT_##_pri_ )
-
-#define CYGBLD_ATTRIB_INIT_BEFORE( _pri_ ) CYGBLD_ATTRIB_INIT_PRI(_pri_-100)
-#define CYGBLD_ATTRIB_INIT_AFTER( _pri_ )  CYGBLD_ATTRIB_INIT_PRI(_pri_+100)
-
-#if defined(__GNUC__) && !defined(__cplusplus) && (__GNUC_VERSION__ >= 40300)
-// Equivalents of the above for C functions, available from gcc 4.3 onwards.
-# define CYGBLD_ATTRIB_C_INIT_PRI( _pri_)       __attribute__((constructor (_pri_)))
-# define CYGBLD_ATTRIB_C_INIT_BEFORE( _pri_ )   __attribute__((constructor (_pri_-100)))
-# define CYGBLD_ATTRIB_C_INIT_AFTER( _pri_ )    __attribute__((constructor (_pri_+100)))
-#endif
-
-// Start with initializing everything inside the cpu and the main memory.
-#define CYG_INIT_HAL                    10000
-#define CYG_INIT_SCHEDULER              11000
-#define CYG_INIT_IDLE_THREAD            11100
-#define CYG_INIT_INTERRUPTS             12000
-#define CYG_INIT_CLOCK                  14000
-#define CYG_INIT_THREADS                16000
-#define CYG_INIT_KERNEL                 19000
-#define CYG_INIT_MEMALLOC               20000
-// Now move on to I/O subsystems and device drivers. These can make use of
-// kernel and HAL functionality, and can dynamically allocate memory if
-// absolutely needed. For now they can also assume that diag_printf()
-// functionality is available, but that may change in future.
-//
-// Primary buses are ones very closely tied to the processor, e.g. PCI.
-#define CYG_INIT_BUS_PRIMARY            30000
-// Not yet: on some targets cyg_pci_init() has to be called very early
-// on for HAL diagnostics to work.
-// #define CYG_INIT_BUS_PCI                CYG_INIT_BUS_PRIMARY
-//
-// Secondary buses may hang off primary buses, e.g. USB host.
-#define CYG_INIT_BUS_SECONDARY          31000
-// Tertiary buses are everything else.
-#define CYG_INIT_BUS_TERTIARY           32000
-#define CYG_INIT_BUS_I2C                CYG_INIT_BUS_TERTIARY
-#define CYG_INIT_BUS_SPI                CYG_INIT_BUS_TERTIARY
-//
-// In future HAL diag initialization may happen at this point.
-//
-// Watchdogs and wallclocks often hang off a tertiary bus but
-// have no dependencies
-#define CYG_INIT_DEV_WATCHDOG           35000
-#define CYG_INIT_DEV_WALLCLOCK          36000
-// A primary block configuration can be initialized with no need
-// for per-unit configuration information.
-#define CYG_INIT_DEV_BLOCK_PRIMARY      37000
-#define CYG_INIT_DEV_FLASH              CYG_INIT_DEV_BLOCK_PRIMARY
-// Per-unit configuration data extracted from primary storage.
-// NOTE: for future use, not implemented yet.
-#define CYG_INIT_CONFIG                 38000
-// Secondary block devices may use per-unit configuration data
-// for e.g. interpreting partition layout. Few devices are expected
-// to fall into this category. Note that these devices, as well as
-// some char devices, may not actually be usable until interrupts
-// are enabled.
-#define CYG_INIT_DEV_BLOCK_SECONDARY    40000
-// Char devices are everything else: serial, ethernet, CAN, ...
-#define CYG_INIT_DEV_CHAR               41000
-// For backwards compatibility. Subject to change in future so
-// a CYG_INIT_DEV_ priority should be used instead.
-#define CYG_INIT_DRIVERS                48000
-// CYG_INIT_IO and CYG_INIT_IO_FS are poorly defined at present,
-// and may get reorganized in future.
-#define CYG_INIT_IO                     49000
-#define CYG_INIT_IO_FS                  50000
-// The I/O subsystems and device drivers have been initialized.
-#define CYG_INIT_LIBC                   56000
-#define CYG_INIT_COMPAT                 58000
-#define CYG_INIT_APPLICATION            60000
-#define CYG_INIT_PREDEFAULT             65534
-#define CYG_INIT_DEFAULT                65535
-
-// -------------------------------------------------------------------------
-// Label name macros. Some toolsets generate labels with initial
-// underscores and others don't. CYG_LABEL_NAME should be used on
-// labels in C/C++ code that are defined in assembly code or linker
-// scripts. CYG_LABEL_DEFN is for use in assembly code and linker
-// scripts where we need to manufacture labels that can be used from
-// C/C++.
-// These are default implementations that should work for most targets.
-// They may be overridden in basetype.h if necessary.
-
-#ifndef CYG_LABEL_NAME
-
-#define CYG_LABEL_NAME(_name_) _name_
-
-#endif
-
-#ifndef CYG_LABEL_DEFN
-
-#define CYG_LABEL_DEFN(_label) _label
-
-#endif
-
-// -------------------------------------------------------------------------
-// COMPILER-SPECIFIC STUFF
-
-#ifdef __GNUC__
-// Force a 'C' routine to be called like a 'C++' contructor
-# if !defined(CYGBLD_ATTRIB_CONSTRUCTOR)
-#  define CYGBLD_ATTRIB_CONSTRUCTOR __attribute__((constructor))
-# endif
-
-// Define a compiler-specific rune for saying a function doesn't return
-# if !defined(CYGBLD_ATTRIB_NORET)
-#  define CYGBLD_ATTRIB_NORET __attribute__((noreturn))
-# endif
-
-// How to define weak symbols - this is only relevant for ELF and a.out,
-// but that won't be a problem for eCos
-# if !defined(CYGBLD_ATTRIB_WEAK)
-#  define CYGBLD_ATTRIB_WEAK __attribute__ ((weak))
-# endif
-
-// How to define alias to symbols. Just pass in the symbol itself, not
-// the string name of the symbol
-# if !defined(CYGBLD_ATTRIB_ALIAS)
-#  define CYGBLD_ATTRIB_ALIAS(__symbol__) \
-        __attribute__ ((alias (#__symbol__)))
-# endif
-
-// This effectively does the reverse of the previous macro. It defines
-// a name that the attributed variable or function will actually have
-// in assembler.
-# if !defined(CYGBLD_ATTRIB_ASM_ALIAS)
-#  define __Str(x) #x
-#  define __Xstr(x) __Str(x)
-#  define CYGBLD_ATTRIB_ASM_ALIAS(__symbol__) \
-             __asm__ ( __Xstr( CYG_LABEL_DEFN( __symbol__ ) ) )
-# endif
-
-// Shows that a function returns the same value when given the same args, but
-// note this can't be used if there are pointer args
-# if !defined(CYGBLD_ATTRIB_CONST)
-#  define CYGBLD_ATTRIB_CONST __attribute__((const))
-#endif
-
-// Assign a defined variable to a specific section
-# if !defined(CYGBLD_ATTRIB_SECTION)
-#  define CYGBLD_ATTRIB_SECTION(__sect__) __attribute__((section (__sect__)))
-# endif
-
-// Give a type or object explicit minimum alignment
-# if !defined(CYGBLD_ATTRIB_ALIGN)
-#  define CYGBLD_ATTRIB_ALIGN(__align__) __attribute__((aligned(__align__)))
-# endif
-
-# if !defined(CYGBLD_ATTRIB_ALIGN_MAX)
-#  define CYGBLD_ATTRIB_ALIGN_MAX __attribute__((aligned))
-# endif
-
-# if !defined(CYGBLD_ATTRIB_ALIGNOFTYPE)
-#  define CYGBLD_ATTRIB_ALIGNOFTYPE( _type_ ) \
-     __attribute__((aligned(__alignof__( _type_ ))))
-# endif
-
-// Teach compiler how to check format of printf-like functions
-# define CYGBLD_ATTRIB_PRINTF_FORMAT(__format__, __args__) \
-        __attribute__((format (printf, __format__, __args__)))
-
-// Teach compiler how to check format of scanf-like functions
-# define CYGBLD_ATTRIB_SCANF_FORMAT(__format__, __args__) \
-        __attribute__((format (scanf, __format__, __args__)))
-
-// Teach compiler how to check format of strftime-like functions
-# define CYGBLD_ATTRIB_STRFTIME_FORMAT(__format__, __args__) \
-        __attribute__((format (strftime, __format__, __args__)))
-
-// Tell the compiler not to throw away a variable or function. Only known
-// available on 3.3.2 or above. Old version's didn't throw them away,
-// but using the unused attribute should stop warnings.
-# if !defined(CYGBLD_ATTRIB_USED)
-#  if __GNUC_VERSION__ >= 30302
-#   define CYGBLD_ATTRIB_USED __attribute__((used))
-#  else
-#   define CYGBLD_ATTRIB_USED __attribute__((unused))
-#  endif
-# endif 
-#else // non-GNU
-
-# define CYGBLD_ATTRIB_CONSTRUCTOR
-
-# define CYGBLD_ATTRIB_NORET
-    // This intentionally gives an error only if we actually try to
-    // use it.  #error would give an error if we simply can't.
-// FIXME: Had to disarm the bomb - the CYGBLD_ATTRIB_WEAK macro is now
-//        (indirectly) used in host tools.
-# define CYGBLD_ATTRIB_WEAK /* !!!-- Attribute weak not defined --!!! */
-
-# define CYGBLD_ATTRIB_ALIAS(__x__) !!!-- Attribute alias not defined --!!!
-
-# define CYGBLD_ATTRIB_ASM_ALIAS(__symbol__) !!!-- Asm alias not defined --!!!
-
-# define CYGBLD_ATTRIB_CONST
-
-# define CYGBLD_ATTRIB_ALIGN(__align__) !!!-- Alignment alias not defined --!!!
-
-# define CYGBLD_ATTRIB_ALIGN_MAX !!!-- Alignment alias not defined --!!!
-
-# define CYGBLD_ATTRIB_ALIGNOFTYPE( _type_ ) !!!-- Alignment alias not defined --!!!
-
-# define CYGBLD_ATTRIB_PRINTF_FORMAT(__format__, __args__)
-
-# define CYGBLD_ATTRIB_SCANF_FORMAT(__format__, __args__)
-
-# define CYGBLD_ATTRIB_STRFTIME_FORMAT(__format__, __args__)
-
-
-#endif
-
-// How to define weak aliases. Currently this is simply a mixture of the
-// above
-
-# define CYGBLD_ATTRIB_WEAK_ALIAS(__symbol__) \
-        CYGBLD_ATTRIB_WEAK CYGBLD_ATTRIB_ALIAS(__symbol__)
-
-#ifdef __cplusplus
-# define __THROW throw()
-#else
-# define __THROW
-#endif
-
-// -------------------------------------------------------------------------
-// Variable annotations
-// These annotations may be added to various static variables in the
-// HAL and kernel to indicate which component they belong to. These
-// are used by some targets to optimize memory placement of these
-// variables.
-
-#ifndef CYGBLD_ANNOTATE_VARIABLE_HAL
-#define CYGBLD_ANNOTATE_VARIABLE_HAL
-#endif
-#ifndef CYGBLD_ANNOTATE_VARIABLE_SCHED
-#define CYGBLD_ANNOTATE_VARIABLE_SCHED
-#endif
-#ifndef CYGBLD_ANNOTATE_VARIABLE_CLOCK
-#define CYGBLD_ANNOTATE_VARIABLE_CLOCK
-#endif
-#ifndef CYGBLD_ANNOTATE_VARIABLE_INTR
-#define CYGBLD_ANNOTATE_VARIABLE_INTR
-#endif
-
-// -------------------------------------------------------------------------
-// Various "flavours" of memory regions that can be described by the 
-// Memory Layout Tool (MLT).
-
-#define CYGMEM_REGION_ATTR_R  0x01  // Region can be read
-#define CYGMEM_REGION_ATTR_W  0x02  // Region can be written
-
-#if defined (__GNUC__) 
-#elif defined (MSVC)
-#define __inline__ __inline 
-#define inline __inline
-#else
-#endif
-// -------------------------------------------------------------------------
-#endif // CYGONCE_INFRA_CYG_TYPE_H multiple inclusion protection
-// EOF cyg_type.h
diff --git a/components/dfs/filesystems/jffs2/dfs_jffs2.c b/components/dfs/filesystems/jffs2/dfs_jffs2.c
deleted file mode 100644
index c082c21d73..0000000000
--- a/components/dfs/filesystems/jffs2/dfs_jffs2.c
+++ /dev/null
@@ -1,687 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2012-1-7       prife        the first version
- */
-
-#include <rtthread.h>
-#include <rtdevice.h>
-
-#include "cyg/infra/cyg_type.h"
-#include "cyg/fileio/fileio.h"
-#include "port/codes.h"
-#include "port/fcntl.h"
-#undef mode_t
-
-#include <dfs_fs.h>
-#include <dfs_file.h>
-
-#include "dfs_jffs2.h"
-#include "jffs2_config.h"
-#include "porting.h"
-#include <string.h>
-
-#if DEVICE_PART_MAX > 1
-    #error "support only one jffs2 partition on a flash device!"
-#endif
-
-/* make sure the following struct var had been initilased to 0! */
-struct device_part
-{
-    struct cyg_mtab_entry * mte;
-    struct rt_mtd_nor_device *dev;
-};
-static struct device_part device_partition[DEVICE_PART_MAX] = {0};
-static struct rt_mutex jffs2_lock;
-
-#define jffs2_mount         jffs2_fste.mount
-#define jffs2_umount        jffs2_fste.umount
-#define jffs2_open          jffs2_fste.open
-#define jffs2_file_unlink   jffs2_fste.unlink
-#define jffs2_mkdir         jffs2_fste.mkdir
-#define jffs2_rmdir         jffs2_fste.rmdir
-#define jffs2_rename        jffs2_fste.rename
-#define jffs2_link          jffs2_fste.link
-#define jffs2_opendir       jffs2_fste.opendir
-#define jffs2_chdir         jffs2_fste.chdir
-#define jffs2_ops_stat      jffs2_fste.stat
-#define jffs2_getinfo       jffs2_fste.getinfo
-#define jffs2_setinfo       jffs2_fste.setinfo
-
-#define jffs2_file_read     jffs2_fileops.fo_read
-#define jffs2_file_write    jffs2_fileops.fo_write
-#define jffs2_file_lseek    jffs2_fileops.fo_lseek
-#define jffs2_file_ioctl    jffs2_fileops.fo_ioctl
-#define jffs2_file_select   jffs2_fileops.fo_select
-#define jffs2_file_fsync    jffs2_fileops.fo_fsync
-#define jffs2_file_colse    jffs2_fileops.fo_close
-#define jffs2_file_fstat    jffs2_fileops.fo_fstat
-#define jffs2_file_getinfo  jffs2_fileops.fo_getinfo
-#define jffs2_file_setinfo  jffs2_fileops.fo_setinfo
-
-#define jffs2_dir_read      jffs2_dirops.fo_read
-//#define jffs2_dir_write   jffs2_dirops.fo_write
-#define jffs2_dir_lseek     jffs2_dirops.fo_lseek
-//#define jffs2_dir_ioctl   jffs2_dirops.fo_ioctl
-#define jffs2_dir_select    jffs2_dirops.fo_select
-//#define jffs2_dir_fsync   jffs2_dirops.fo_fsync
-#define jffs2_dir_colse     jffs2_dirops.fo_close
-//#define jffs2_dir_fstat   jffs2_dirops.fo_fstat
-//#define jffs2_dir_getinfo jffs2_dirops.fo_getinfo
-//#define jffs2_dir_setinfo jffs2_dirops.fo_setinfo
-
-/*
- * RT-Thread Device Interface for jffs2
- */
-
-/* these code is in src/flashio.c */
-static int jffs2_result_to_dfs(int result)
-{
-    if (result < 0) return  result;
-    if (result > 0) return -result;
-
-    return 0;
-}
-
-/*
- * RT-Thread DFS Interface for jffs2
- */
-static int dfs_jffs2_mount(struct dfs_filesystem* fs,
-                    unsigned long rwflag,
-                    const void* data)
-{
-    unsigned index;
-    struct cyg_mtab_entry * mte;
-    int result;
-
-    /* find a empty entry in partition table */
-    for (index = 0; index < DEVICE_PART_MAX; index ++)
-    {
-        if (device_partition[index].dev == RT_NULL)
-            break;
-    }
-    if (index == DEVICE_PART_MAX)
-        return -ENOSPC;
-
-    mte = rt_malloc(sizeof(struct cyg_mtab_entry));
-    if (mte == RT_NULL)
-        return -ENOMEM;
-
-    mte->name = fs->path;
-    mte->fsname = "jffs2";
-    mte->devname = NULL;
-    /* note that, i use mte->data to store rtt's device
-     * while, in jffs2_mount, mte->data will be copy into
-     * s_dev in struct super_block, and mte->data will be
-     * filled with jffs2_sb(see the source of jffs2_mount.
-     */
-    mte->data = (CYG_ADDRWORD)fs->dev_id;
-
-    device_partition[index].dev = RT_MTD_NOR_DEVICE(fs->dev_id);
-    /* after jffs2_mount, mte->data will not be dev_id any more */
-    result = jffs2_mount(NULL, mte);
-    if (result != 0)
-    {
-        device_partition[index].dev = NULL;
-        return jffs2_result_to_dfs(result);
-    }
-
-    /* save this pointer */
-    device_partition[index].mte = mte;
-    return 0;
-}
-
-static int _find_fs(struct cyg_mtab_entry ** mte, rt_device_t dev_id)
-{
-    unsigned index;
-
-    /* find device index */
-    for (index = 0; index < DEVICE_PART_MAX; index++)
-    {
-        if (device_partition[index].dev == RT_MTD_NOR_DEVICE(dev_id))
-        {
-            *mte = device_partition[index].mte;
-            return 0;
-        }
-    }
-
-    rt_kprintf("error, could not found the fs!");
-    return -1;
-}
-
-static int dfs_jffs2_unmount(struct dfs_filesystem* fs)
-{
-    int result;
-    unsigned index;
-
-    /* find device index, then umount it */
-    for (index = 0; index < DEVICE_PART_MAX; index++)
-    {
-        if (device_partition[index].dev == RT_MTD_NOR_DEVICE(fs->dev_id))
-        {
-            result = jffs2_umount(device_partition[index].mte);
-            if (result) return jffs2_result_to_dfs(result);
-
-            rt_free(device_partition[index].mte);
-            device_partition[index].dev = NULL;
-            device_partition[index].mte = NULL;
-            return RT_EOK;
-        }
-    }
-
-    return -ENOENT;
-}
-
-static int dfs_jffs2_mkfs(rt_device_t dev_id)
-{
-    /* just erase all blocks on this nand partition */
-    return -ENOSYS;
-}
-
-static int dfs_jffs2_statfs(struct dfs_filesystem* fs,
-                     struct statfs *buf)
-{
-    /* since the limit of unsigned long, so the max size of flash device is 4G */
-    struct cyg_mtab_entry * mte;
-    struct jffs2_fs_info info;
-    int result;
-
-    result = _find_fs(&mte, fs->dev_id);
-    if (result)
-        return -ENOENT;
-
-    RT_ASSERT(mte->data != 0);
-
-    jffs2_get_info_from_sb((void *)mte->data, &info);
-    buf->f_bsize = info.sector_size;
-    buf->f_blocks = info.nr_blocks;
-    buf->f_bfree = info.free_size / info.sector_size;
-
-    return 0;
-}
-
-static const char jffs2_root_path[] = ".";
-
-static int dfs_jffs2_open(struct dfs_fd* file)
-{
-    int result;
-    int oflag, mode;
-    const char * name;
-    cyg_file * jffs2_file;
-    struct dfs_filesystem *fs;
-    struct cyg_mtab_entry * mte;
-
-    oflag = file->flags;
-    fs = (struct dfs_filesystem *)file->data;
-    RT_ASSERT(fs != RT_NULL);
-
-    jffs2_file = rt_malloc(sizeof(cyg_file));
-    if (jffs2_file == RT_NULL)
-        return -ENOMEM;
-
-    /* just escape '/' provided by dfs code */
-    name = file->path;
-    if ((name[0] == '/') && (name[1] == 0))
-        name = jffs2_root_path;
-    else /* name[0] still will be '/' */
-        name ++;
-
-    result = _find_fs(&mte, fs->dev_id);
-    if (result)
-    {
-        rt_free(jffs2_file);
-        return -ENOENT;
-    }
-
-    /* set mount table */
-    jffs2_file->f_mte = mte;
-
-    if (oflag & O_DIRECTORY) /* operations about dir */
-    {
-        rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-        if (oflag & O_CREAT) /* create a dir*/
-        {
-            /* fixme, should test file->path can end with '/' */
-            result = jffs2_mkdir(mte, mte->root, name);
-            if (result)
-            {
-                rt_mutex_release(&jffs2_lock);
-                rt_free(jffs2_file);
-                return jffs2_result_to_dfs(result);
-            }
-        }
-
-        /* open dir */
-        result = jffs2_opendir(mte, mte->root, name, jffs2_file);
-        rt_mutex_release(&jffs2_lock);
-        if (result)
-        {
-            rt_free(jffs2_file);
-            return jffs2_result_to_dfs(result);
-        }
-#ifdef  CONFIG_JFFS2_NO_RELATIVEDIR
-        jffs2_file->f_offset = 2;
-#endif
-        /* save this pointer, it will be used by dfs_jffs2_getdents*/
-        file->data = jffs2_file;
-        return 0;
-    }
-    /* regular file operations */
-    mode = JFFS2_O_RDONLY;
-    if (oflag & O_WRONLY) mode |= JFFS2_O_WRONLY;
-    if (oflag & O_RDWR)   mode |= JFFS2_O_RDWR;
-    /* Opens the file, if it is existing. If not, a new file is created. */
-    if (oflag & O_CREAT) mode |= JFFS2_O_CREAT;
-    /* Creates a new file. If the file is existing, it is truncated and overwritten. */
-    if (oflag & O_TRUNC) mode |= JFFS2_O_TRUNC;
-    /* Creates a new file. The function fails if the file is already existing. */
-    if (oflag & O_EXCL) mode |= JFFS2_O_EXCL;
-
-    rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-    result = jffs2_open(mte, 0, name, mode, jffs2_file);
-    if (result != 0)
-    {
-        rt_mutex_release(&jffs2_lock);
-        rt_free(jffs2_file);
-        return jffs2_result_to_dfs(result);
-    }
-
-    /* save this pointer, it will be used when calling read(), write(),
-    flush(), lessk(), and will be rt_free when calling close()*/
-    file->data = jffs2_file;
-    file->pos = jffs2_file->f_offset;
-    file->size = 0;
-    jffs2_file_lseek(jffs2_file, (off_t *)(&(file->size)), SEEK_END);
-    jffs2_file->f_offset = (off_t)file->pos;
-    rt_mutex_release(&jffs2_lock);
-
-    if (oflag & O_APPEND)
-    {
-        file->pos = file->size;
-        jffs2_file->f_offset = file->size;
-    }
-
-    return 0;
-}
-
-static int dfs_jffs2_close(struct dfs_fd* file)
-{
-    int result;
-    cyg_file * jffs2_file;
-
-    RT_ASSERT(file->data != NULL);
-    jffs2_file = (cyg_file *)(file->data);
-
-    if (file->flags & O_DIRECTORY) /* operations about dir */
-    {
-        rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-        result = jffs2_dir_colse(jffs2_file);
-        rt_mutex_release(&jffs2_lock);
-        if (result)
-            return jffs2_result_to_dfs(result);
-
-        rt_free(jffs2_file);
-        return 0;
-    }
-    /* regular file operations */
-    rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-    result = jffs2_file_colse(jffs2_file);
-    rt_mutex_release(&jffs2_lock);
-    if (result)
-        return jffs2_result_to_dfs(result);
-
-    /* release memory */
-    rt_free(jffs2_file);
-    return 0;
-}
-
-static int dfs_jffs2_ioctl(struct dfs_fd* file, int cmd, void* args)
-{
-    return -ENOSYS;
-}
-
-static int dfs_jffs2_read(struct dfs_fd* file, void* buf, size_t len)
-{
-    cyg_file * jffs2_file;
-    struct CYG_UIO_TAG uio_s;
-    struct CYG_IOVEC_TAG iovec;
-    int char_read;
-    int result;
-
-    RT_ASSERT(file->data != NULL);
-    jffs2_file = (cyg_file *)(file->data);
-    uio_s.uio_iov = &iovec;
-    uio_s.uio_iov->iov_base = buf;
-    uio_s.uio_iov->iov_len = len;
-    uio_s.uio_iovcnt = 1; //must be 1
-    //uio_s.uio_offset //not used...
-    uio_s.uio_resid = uio_s.uio_iov->iov_len; //seem no use in jffs2;
-
-    char_read = jffs2_file->f_offset; /* the current offset */
-    rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-    result = jffs2_file_read(jffs2_file, &uio_s);
-    rt_mutex_release(&jffs2_lock);
-    if (result)
-        return jffs2_result_to_dfs(result);
-
-    /* update position */
-    file->pos = jffs2_file->f_offset;
-    char_read = jffs2_file->f_offset - char_read;
-    return char_read;
-}
-
-static int dfs_jffs2_write(struct dfs_fd* file,
-                    const void* buf,
-                    size_t len)
-{
-    cyg_file * jffs2_file;
-    struct CYG_UIO_TAG uio_s;
-    struct CYG_IOVEC_TAG iovec;
-    int char_write;
-    int result;
-
-    RT_ASSERT(file->data != NULL);
-    jffs2_file = (cyg_file *)(file->data);
-    uio_s.uio_iov = &iovec;
-    uio_s.uio_iov->iov_base = (void *)buf;
-    uio_s.uio_iov->iov_len = len;
-    uio_s.uio_iovcnt = 1; //must be 1
-    //uio_s.uio_offset //not used...
-    uio_s.uio_resid = uio_s.uio_iov->iov_len; //seem no use in jffs2;
-
-    char_write = jffs2_file->f_offset;
-    rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-    result = jffs2_file_write(jffs2_file, &uio_s);
-    rt_mutex_release(&jffs2_lock);
-    if (result)
-        return jffs2_result_to_dfs(result);
-
-    /* update position */
-    file->pos = jffs2_file->f_offset;
-    char_write = jffs2_file->f_offset - char_write;
-    return char_write;
-}
-
-static int dfs_jffs2_flush(struct dfs_fd* file)
-{
-    /* infact, jffs2 not support, jffs2_fo_sync just return ok */
-    return -ENOSYS;
-}
-
-/* fixme warning: the offset is rt_off_t, so maybe the size of a file is must <= 2G*/
-static int dfs_jffs2_lseek(struct dfs_fd* file,
-                    rt_off_t offset)
-{
-    cyg_file * jffs2_file;
-    int result;
-
-    RT_ASSERT(file->data != NULL);
-    jffs2_file = (cyg_file *)(file->data);
-
-    /* set offset as current offset */
-    rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-    result = jffs2_file_lseek(jffs2_file, &offset, SEEK_SET);
-    rt_mutex_release(&jffs2_lock);
-    if (result)
-        return jffs2_result_to_dfs(result);
-    /* update file position */
-    file->pos = offset;
-    return offset;
-}
-
-/* return the size of  struct dirent*/
-static int dfs_jffs2_getdents(struct dfs_fd* file,
-                       struct dirent* dirp,
-                       rt_uint32_t count)
-{
-    cyg_file * jffs2_file;
-    struct CYG_UIO_TAG uio_s;
-    struct CYG_IOVEC_TAG iovec;
-    struct jffs2_dirent jffs2_d;
-    struct dirent * d;
-    rt_uint32_t index;
-#if !defined (CYGPKG_FS_JFFS2_RET_DIRENT_DTYPE)
-    struct jffs2_stat s;
-    cyg_mtab_entry * mte;
-    char * fullname;
-#endif
-    int result;
-
-    RT_ASSERT(file->data != RT_NULL);
-    jffs2_file = (cyg_file*)(file->data);
-    mte = jffs2_file->f_mte;
-
-    //set jffs2_d
-    memset(&jffs2_d, 0, sizeof(struct jffs2_dirent));
-    //set CYG_UIO_TAG uio_s
-    uio_s.uio_iov = &iovec;
-    uio_s.uio_iov->iov_base = &jffs2_d;
-    uio_s.uio_iov->iov_len = sizeof(struct jffs2_dirent);;
-    uio_s.uio_iovcnt = 1; //must be 1
-    uio_s.uio_offset = 0;//not used...
-    uio_s.uio_resid = uio_s.uio_iov->iov_len; //seem no use in jffs2;
-
-    /* make integer count, usually count is 1 */
-    count = (count / sizeof(struct dirent)) * sizeof(struct dirent);
-    if (count == 0) return -EINVAL;
-
-    index = 0;
-    /* usually, the while loop should only be looped only once! */
-    while (1)
-    {
-        d = dirp + index;
-        rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-        result = jffs2_dir_read(jffs2_file, &uio_s);
-        rt_mutex_release(&jffs2_lock);
-        /* if met a error or all entry are read over, break while*/
-        if (result || jffs2_d.d_name[0] == 0)
-            break;
-
-#if defined (CYGPKG_FS_JFFS2_RET_DIRENT_DTYPE)
-        switch(jffs2_d.d_type & JFFS2_S_IFMT)
-        {
-        case JFFS2_S_IFREG: d->d_type = DT_REG; break;
-        case JFFS2_S_IFDIR: d->d_type = DT_DIR; break;
-        default: d->d_type = DT_UNKNOWN; break;
-        }
-#else
-        fullname = rt_malloc(FILE_PATH_MAX);
-        if(fullname == RT_NULL)
-                return -ENOMEM;
-
-        /* make a right entry */
-        if ((file->path[0] == '/') )
-        {
-            if (file->path[1] == 0)
-                strcpy(fullname, jffs2_d.d_name);
-            else
-                rt_sprintf(fullname, "%s/%s", file->path+1, jffs2_d.d_name);
-        }
-        else
-            rt_sprintf(fullname, "%s/%s", file->path, jffs2_d.d_name);
-        rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-        result = jffs2_porting_stat(mte, mte->root, fullname, (void *)&s);
-        rt_mutex_release(&jffs2_lock);
-        if (result)
-            return jffs2_result_to_dfs(result);
-
-        rt_free(fullname);
-        /* convert to dfs stat structure */
-        switch(s.st_mode & JFFS2_S_IFMT)
-        {
-        case JFFS2_S_IFREG: d->d_type = DT_REG; break;
-        case JFFS2_S_IFDIR: d->d_type = DT_DIR; break;
-        default: d->d_type = DT_UNKNOWN; break;
-        }
-#endif
-        /* write the rest fields of struct dirent* dirp  */
-        d->d_namlen = rt_strlen(jffs2_d.d_name);
-        d->d_reclen = (rt_uint16_t)sizeof(struct dirent);
-        rt_strncpy(d->d_name, jffs2_d.d_name, d->d_namlen + 1);
-
-        index ++;
-        if (index * sizeof(struct dirent) >= count)
-            break;
-    }
-    if (result)
-        return jffs2_result_to_dfs(result);
-    return index * sizeof(struct dirent);
-}
-
-static int dfs_jffs2_unlink(struct dfs_filesystem* fs, const char* path)
-{
-    int result;
-    struct jffs2_stat s;
-    cyg_mtab_entry * mte;
-
-    result = _find_fs(&mte, fs->dev_id);
-    if (result)
-        return -ENOENT;
-
-    /* deal path */
-    if (path[0] == '/')
-        path++;
-
-    /* judge file type, dir is to be delete by rmdir, others by unlink */
-    rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-    result = jffs2_porting_stat(mte, mte->root, path, (void *)&s);
-    if (result)
-    {
-        rt_mutex_release(&jffs2_lock);
-        return jffs2_result_to_dfs(result);
-    }
-
-    switch(s.st_mode & JFFS2_S_IFMT)
-    {
-    case JFFS2_S_IFREG:
-        result = jffs2_file_unlink(mte, mte->root, path);
-        break;
-    case JFFS2_S_IFDIR:
-        result = jffs2_rmdir(mte, mte->root, path);
-        break;
-    default:
-        /* unknown file type */
-        rt_mutex_release(&jffs2_lock);
-        return -1;
-    }
-    rt_mutex_release(&jffs2_lock);
-    if (result)
-        return jffs2_result_to_dfs(result);
-    return 0;
-}
-
-static int dfs_jffs2_rename(struct dfs_filesystem* fs,
-                     const char* oldpath,
-                     const char* newpath)
-{
-    int result;
-    cyg_mtab_entry * mte;
-
-    result = _find_fs(&mte, fs->dev_id);
-    if (result)
-        return -ENOENT;
-
-    if (*oldpath == '/')
-        oldpath += 1;
-    if (*newpath == '/')
-        newpath += 1;
-    rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-    result = jffs2_rename(mte, mte->root, oldpath, mte->root, newpath);
-    rt_mutex_release(&jffs2_lock);
-    if (result)
-        return jffs2_result_to_dfs(result);
-    return 0;
-}
-
-static int dfs_jffs2_stat(struct dfs_filesystem* fs, const char *path, struct stat *st)
-{
-    int result;
-    struct jffs2_stat s;
-    cyg_mtab_entry * mte;
-
-    /* deal the path for jffs2 */
-    RT_ASSERT(!((path[0] == '/') && (path[1] == 0)));
-
-    if (path[0] == '/')
-        path++;
-
-    result = _find_fs(&mte, fs->dev_id);
-    if (result)
-        return -ENOENT;
-
-    rt_mutex_take(&jffs2_lock, RT_WAITING_FOREVER);
-    result = jffs2_porting_stat(mte, mte->root, path, (void *)&s);
-    rt_mutex_release(&jffs2_lock);
-
-    if (result)
-        return jffs2_result_to_dfs(result);
-    /* convert to dfs stat structure */
-    switch(s.st_mode & JFFS2_S_IFMT)
-    {
-    case JFFS2_S_IFREG:
-        st->st_mode = S_IFREG | S_IRUSR | S_IRGRP | S_IROTH |
-            S_IWUSR | S_IWGRP | S_IWOTH;
-        break;
-
-    case JFFS2_S_IFDIR:
-        st->st_mode = S_IFDIR | S_IXUSR | S_IXGRP | S_IXOTH;
-        break;
-
-    default:
-        st->st_mode = DT_UNKNOWN; //fixme
-        break;
-    }
-
-    st->st_dev  = 0;
-    st->st_size = s.st_size;
-    st->st_mtime = s.st_mtime;
-
-    return 0;
-}
-
-static const struct dfs_file_ops _jffs2_fops =
-{
-    dfs_jffs2_open,
-    dfs_jffs2_close,
-    dfs_jffs2_ioctl,
-    dfs_jffs2_read,
-    dfs_jffs2_write,
-    dfs_jffs2_flush,
-    dfs_jffs2_lseek,
-    dfs_jffs2_getdents,
-};
-
-static const struct dfs_filesystem_ops _jffs2_ops =
-{
-    "jffs2",
-    DFS_FS_FLAG_DEFAULT,
-    &_jffs2_fops,
-
-    dfs_jffs2_mount,
-    dfs_jffs2_unmount,
-    dfs_jffs2_mkfs,
-    dfs_jffs2_statfs,
-
-    dfs_jffs2_unlink,
-    dfs_jffs2_stat,
-    dfs_jffs2_rename,
-};
-
-int dfs_jffs2_init(void)
-{
-    /* register fatfs file system */
-    dfs_register(&_jffs2_ops);
-
-    /* initialize mutex */
-    if (rt_mutex_init(&jffs2_lock, "jffs2lock", RT_IPC_FLAG_FIFO) != RT_EOK)
-    {
-        rt_kprintf("init jffs2 lock mutex failed\n");
-    }
-    rt_kprintf("init jffs2 lock mutex okay\n");
-    return 0;
-}
-INIT_COMPONENT_EXPORT(dfs_jffs2_init);
diff --git a/components/dfs/filesystems/jffs2/dfs_jffs2.h b/components/dfs/filesystems/jffs2/dfs_jffs2.h
deleted file mode 100644
index 1be403a19c..0000000000
--- a/components/dfs/filesystems/jffs2/dfs_jffs2.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-#ifndef __DFS_JFFS2_H__ 
-#define __DFS_JFFS2_H__
-
-int dfs_jffs2_init(void);
-
-#endif
diff --git a/components/dfs/filesystems/jffs2/include/linux/jffs2.h b/components/dfs/filesystems/jffs2/include/linux/jffs2.h
deleted file mode 100644
index ab034effe6..0000000000
--- a/components/dfs/filesystems/jffs2/include/linux/jffs2.h
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in the
- * jffs2 directory.
- *
- * $Id: jffs2.h,v 1.36 2005/07/26 13:19:36 havasi Exp $
- *
- */
-
-#ifndef __LINUX_JFFS2_H__
-#define __LINUX_JFFS2_H__
-
-/* You must include something which defines the C99 uintXX_t types.
-   We don't do it from here because this file is used in too many
-   different environments. */
-
-#define JFFS2_SUPER_MAGIC 0x72b6
-
-/* Values we may expect to find in the 'magic' field */
-#define JFFS2_OLD_MAGIC_BITMASK 0x1984
-#define JFFS2_MAGIC_BITMASK 0x1985
-#define KSAMTIB_CIGAM_2SFFJ 0x8519 /* For detecting wrong-endian fs */
-#define JFFS2_EMPTY_BITMASK 0xffff
-#define JFFS2_DIRTY_BITMASK 0x0000
-
-/* We only allow a single char for length, and 0xFF is empty flash so
-   we don't want it confused with a real length. Hence max 254.
-*/
-#define JFFS2_MAX_NAME_LEN 254
-
-/* How small can we sensibly write nodes? */
-#define JFFS2_MIN_DATA_LEN 128
-
-#define JFFS2_COMPR_NONE	0x00
-#define JFFS2_COMPR_ZERO	0x01
-#define JFFS2_COMPR_RTIME	0x02
-#define JFFS2_COMPR_RUBINMIPS	0x03
-#define JFFS2_COMPR_COPY	0x04
-#define JFFS2_COMPR_DYNRUBIN	0x05
-#define JFFS2_COMPR_ZLIB	0x06
-/* Compatibility flags. */
-#define JFFS2_COMPAT_MASK 0xc000      /* What do to if an unknown nodetype is found */
-#define JFFS2_NODE_ACCURATE 0x2000
-/* INCOMPAT: Fail to mount the filesystem */
-#define JFFS2_FEATURE_INCOMPAT 0xc000
-/* ROCOMPAT: Mount read-only */
-#define JFFS2_FEATURE_ROCOMPAT 0x8000
-/* RWCOMPAT_COPY: Mount read/write, and copy the node when it's GC'd */
-#define JFFS2_FEATURE_RWCOMPAT_COPY 0x4000
-/* RWCOMPAT_DELETE: Mount read/write, and delete the node when it's GC'd */
-#define JFFS2_FEATURE_RWCOMPAT_DELETE 0x0000
-
-#define JFFS2_NODETYPE_DIRENT (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 1)
-#define JFFS2_NODETYPE_INODE (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 2)
-#define JFFS2_NODETYPE_CLEANMARKER (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
-#define JFFS2_NODETYPE_PADDING (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 4)
-
-// Maybe later...
-//#define JFFS2_NODETYPE_CHECKPOINT (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
-//#define JFFS2_NODETYPE_OPTIONS (JFFS2_FEATURE_RWCOMPAT_COPY | JFFS2_NODE_ACCURATE | 4)
-
-
-#define JFFS2_INO_FLAG_PREREAD	  1	/* Do read_inode() for this one at
-					   mount time, don't wait for it to
-					   happen later */
-#define JFFS2_INO_FLAG_USERCOMPR  2	/* User has requested a specific
-					   compression type */
-
-
-/* These can go once we've made sure we've caught all uses without
-   byteswapping */
-#include <stdint.h>
-
-#if defined(__GNUC__) || (__CC_ARM) 
-typedef struct {
-	uint32_t v32;
-} __attribute__((packed))  jint32_t;
-
-typedef struct {
-	uint32_t m;
-} __attribute__((packed))  jmode_t;
-
-typedef struct {
-	uint16_t v16;
-} __attribute__((packed)) jint16_t;
-
-struct jffs2_unknown_node
-{
-	/* All start like this */
-	jint16_t magic;
-	jint16_t nodetype;
-	jint32_t totlen; /* So we can skip over nodes we don't grok */
-	jint32_t hdr_crc;
-} __attribute__((packed));
-
-struct jffs2_raw_dirent
-{
-	jint16_t magic;
-	jint16_t nodetype;	/* == JFFS2_NODETYPE_DIRENT */
-	jint32_t totlen;
-	jint32_t hdr_crc;
-	jint32_t pino;
-	jint32_t version;
-	jint32_t ino; /* == zero for unlink */
-	jint32_t mctime;
-	uint8_t nsize;
-	uint8_t type;
-	uint8_t unused[2];
-	jint32_t node_crc;
-	jint32_t name_crc;
-	uint8_t name[0];
-} __attribute__((packed));
-
-/* The JFFS2 raw inode structure: Used for storage on physical media.  */
-/* The uid, gid, atime, mtime and ctime members could be longer, but
-   are left like this for space efficiency. If and when people decide
-   they really need them extended, it's simple enough to add support for
-   a new type of raw node.
-*/
-struct jffs2_raw_inode
-{
-	jint16_t magic;      /* A constant magic number.  */
-	jint16_t nodetype;   /* == JFFS2_NODETYPE_INODE */
-	jint32_t totlen;     /* Total length of this node (inc data, etc.) */
-	jint32_t hdr_crc;
-	jint32_t ino;        /* Inode number.  */
-	jint32_t version;    /* Version number.  */
-	jmode_t mode;       /* The file's type or mode.  */
-	jint16_t uid;        /* The file's owner.  */
-	jint16_t gid;        /* The file's group.  */
-	jint32_t isize;      /* Total resultant size of this inode (used for truncations)  */
-	jint32_t atime;      /* Last access time.  */
-	jint32_t mtime;      /* Last modification time.  */
-	jint32_t ctime;      /* Change time.  */
-	jint32_t offset;     /* Where to begin to write.  */
-	jint32_t csize;      /* (Compressed) data size */
-	jint32_t dsize;	     /* Size of the node's data. (after decompression) */
-	uint8_t compr;       /* Compression algorithm used */
-	uint8_t usercompr;   /* Compression algorithm requested by the user */
-	jint16_t flags;	     /* See JFFS2_INO_FLAG_* */
-	jint32_t data_crc;   /* CRC for the (compressed) data.  */
-	jint32_t node_crc;   /* CRC for the raw inode (excluding data)  */
-	uint8_t data[0];
-} __attribute__((packed));
-
-#elif defined (MSVC)
-typedef uint32_t jint32_t;
-//typedef uint32_t jmode_t;
-typedef struct {
-	uint32_t m;
-} jmode_t;
-typedef uint16_t jint16_t;
-
-#pragma pack(1)
-struct jffs2_unknown_node
-{
-	/* All start like this */
-	jint16_t magic;
-	jint16_t nodetype;
-	jint32_t totlen; /* So we can skip over nodes we don't grok */
-	jint32_t hdr_crc;
-}; 
-
-struct jffs2_raw_dirent
-{
-	jint16_t magic;
-	jint16_t nodetype;	/* == JFFS2_NODETYPE_DIRENT */
-	jint32_t totlen;
-	jint32_t hdr_crc;
-	jint32_t pino;
-	jint32_t version;
-	jint32_t ino; /* == zero for unlink */
-	jint32_t mctime;
-	uint8_t nsize;
-	uint8_t type;
-	uint8_t unused[2];
-	jint32_t node_crc;
-	jint32_t name_crc;
-	uint8_t name[0];
-};
-
-/* The JFFS2 raw inode structure: Used for storage on physical media.  */
-/* The uid, gid, atime, mtime and ctime members could be longer, but
-   are left like this for space efficiency. If and when people decide
-   they really need them extended, it's simple enough to add support for
-   a new type of raw node.
-*/
-struct jffs2_raw_inode
-{
-	jint16_t magic;      /* A constant magic number.  */
-	jint16_t nodetype;   /* == JFFS2_NODETYPE_INODE */
-	jint32_t totlen;     /* Total length of this node (inc data, etc.) */
-	jint32_t hdr_crc;
-	jint32_t ino;        /* Inode number.  */
-	jint32_t version;    /* Version number.  */
-	jmode_t mode;       /* The file's type or mode.  */
-	jint16_t uid;        /* The file's owner.  */
-	jint16_t gid;        /* The file's group.  */
-	jint32_t isize;      /* Total resultant size of this inode (used for truncations)  */
-	jint32_t atime;      /* Last access time.  */
-	jint32_t mtime;      /* Last modification time.  */
-	jint32_t ctime;      /* Change time.  */
-	jint32_t offset;     /* Where to begin to write.  */
-	jint32_t csize;      /* (Compressed) data size */
-	jint32_t dsize;	     /* Size of the node's data. (after decompression) */
-	uint8_t compr;       /* Compression algorithm used */
-	uint8_t usercompr;   /* Compression algorithm requested by the user */
-	jint16_t flags;	     /* See JFFS2_INO_FLAG_* */
-	jint32_t data_crc;   /* CRC for the (compressed) data.  */
-	jint32_t node_crc;   /* CRC for the raw inode (excluding data)  */
-	uint8_t data[0];
-};
-#pragma pack()
-#else
-#endif
-
-
-union jffs2_node_union {
-	struct jffs2_raw_inode i;
-	struct jffs2_raw_dirent d;
-	struct jffs2_unknown_node u;
-};
-
-#endif /* __LINUX_JFFS2_H__ */
diff --git a/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_i.h b/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_i.h
deleted file mode 100644
index 7f30282653..0000000000
--- a/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_i.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* $Id: jffs2_fs_i.h,v 1.18 2005/07/17 11:13:48 dedekind Exp $ */
-
-#ifndef _JFFS2_FS_I
-#define _JFFS2_FS_I
-
-#include <linux/version.h>
-#include <linux/rbtree.h>
-#include <asm/semaphore.h>
-
-struct jffs2_inode_info {
-	/* We need an internal semaphore similar to inode->i_sem.
-	   Unfortunately, we can't used the existing one, because
-	   either the GC would deadlock, or we'd have to release it
-	   before letting GC proceed. Or we'd have to put ugliness
-	   into the GC code so it didn't attempt to obtain the i_sem
-	   for the inode(s) which are already locked */
-	struct semaphore sem;
-
-	/* The highest (datanode) version number used for this ino */
-	uint32_t highest_version;
-
-	/* List of data fragments which make up the file */
-	struct rb_root fragtree;
-
-	/* There may be one datanode which isn't referenced by any of the
-	   above fragments, if it contains a metadata update but no actual
-	   data - or if this is a directory inode */
-	/* This also holds the _only_ dnode for symlinks/device nodes, 
-	   etc. */
-	struct jffs2_full_dnode *metadata;
-
-	/* Directory entries */
-	struct jffs2_full_dirent *dents;
-
-	/* The target path if this is the inode of a symlink */
-	unsigned char *target;
-
-	/* Some stuff we just have to keep in-core at all times, for each inode. */
-	struct jffs2_inode_cache *inocache;
-
-	uint16_t flags;
-	uint8_t usercompr;
-#if !defined (__ECOS) && !defined(RT_THREAD)
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)
-	struct inode vfs_inode;
-#endif
-#endif
-};
-
-#endif /* _JFFS2_FS_I */
diff --git a/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_sb.h b/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_sb.h
deleted file mode 100644
index 066e9400bc..0000000000
--- a/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_sb.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/* $Id: jffs2_fs_sb.h,v 1.52 2005/05/19 16:12:17 gleixner Exp $ */
-
-#ifndef _JFFS2_FS_SB
-#define _JFFS2_FS_SB
-
-#include "jffs2_config.h"
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-#include <linux/completion.h>
-#include <asm/semaphore.h>
-#include <linux/timer.h>
-#include <linux/wait.h>
-#include <linux/list.h>
-#include <linux/rwsem.h>
-
-#define JFFS2_SB_FLAG_RO 1
-#define JFFS2_SB_FLAG_SCANNING 2 /* Flash scanning is in progress */
-#define JFFS2_SB_FLAG_BUILDING 4 /* File system building is in progress */
-
-struct jffs2_inodirty;
-
-/* A struct for the overall file system control.  Pointers to
-   jffs2_sb_info structs are named `c' in the source code.  
-   Nee jffs_control
-*/
-struct jffs2_sb_info {
-	struct mtd_info *mtd;
-
-	uint32_t highest_ino;
-	uint32_t checked_ino;
-
-	unsigned int flags;
-
-	struct task_struct *gc_task;	/* GC task struct */
-	struct completion gc_thread_start; /* GC thread start completion */
-	struct completion gc_thread_exit; /* GC thread exit completion port */
-
-	struct semaphore alloc_sem;	/* Used to protect all the following 
-					   fields, and also to protect against
-					   out-of-order writing of nodes. And GC. */
-	uint32_t cleanmarker_size;	/* Size of an _inline_ CLEANMARKER
-					 (i.e. zero for OOB CLEANMARKER */
-
-	uint32_t flash_size;
-	uint32_t used_size;
-	uint32_t dirty_size;
-	uint32_t wasted_size;
-	uint32_t free_size;
-	uint32_t erasing_size;
-	uint32_t bad_size;
-	uint32_t sector_size;
-	uint32_t unchecked_size;
-
-	uint32_t nr_free_blocks;
-	uint32_t nr_erasing_blocks;
-
-	/* Number of free blocks there must be before we... */
-	uint8_t resv_blocks_write;	/* ... allow a normal filesystem write */
-	uint8_t resv_blocks_deletion;	/* ... allow a normal filesystem deletion */
-	uint8_t resv_blocks_gctrigger;	/* ... wake up the GC thread */
-	uint8_t resv_blocks_gcbad;	/* ... pick a block from the bad_list to GC */
-	uint8_t resv_blocks_gcmerge;	/* ... merge pages when garbage collecting */
-
-	uint32_t nospc_dirty_size;
-
-	uint32_t nr_blocks;
-	struct jffs2_eraseblock *blocks;	/* The whole array of blocks. Used for getting blocks 
-						 * from the offset (blocks[ofs / sector_size]) */
-	struct jffs2_eraseblock *nextblock;	/* The block we're currently filling */
-
-	struct jffs2_eraseblock *gcblock;	/* The block we're currently garbage-collecting */
-
-	struct list_head clean_list;		/* Blocks 100% full of clean data */
-	struct list_head very_dirty_list;	/* Blocks with lots of dirty space */
-	struct list_head dirty_list;		/* Blocks with some dirty space */
-	struct list_head erasable_list;		/* Blocks which are completely dirty, and need erasing */
-	struct list_head erasable_pending_wbuf_list;	/* Blocks which need erasing but only after the current wbuf is flushed */
-	struct list_head erasing_list;		/* Blocks which are currently erasing */
-	struct list_head erase_pending_list;	/* Blocks which need erasing now */
-	struct list_head erase_complete_list;	/* Blocks which are erased and need the clean marker written to them */
-	struct list_head free_list;		/* Blocks which are free and ready to be used */
-	struct list_head bad_list;		/* Bad blocks. */
-	struct list_head bad_used_list;		/* Bad blocks with valid data in. */
-
-	spinlock_t erase_completion_lock;	/* Protect free_list and erasing_list 
-						   against erase completion handler */
-	wait_queue_head_t erase_wait;		/* For waiting for erases to complete */
-
-	wait_queue_head_t inocache_wq;
-	struct jffs2_inode_cache **inocache_list;
-	spinlock_t inocache_lock;
-	
-	/* Sem to allow jffs2_garbage_collect_deletion_dirent to
-	   drop the erase_completion_lock while it's holding a pointer 
-	   to an obsoleted node. I don't like this. Alternatives welcomed. */
-	struct semaphore erase_free_sem;
-
-#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-	/* Write-behind buffer for NAND flash */
-	unsigned char *wbuf;
-	uint32_t wbuf_ofs;
-	uint32_t wbuf_len;
-	uint32_t wbuf_pagesize;
-	struct jffs2_inodirty *wbuf_inodes;
-
-	struct rw_semaphore wbuf_sem;	/* Protects the write buffer */
-
-	/* Information about out-of-band area usage... */
-	struct nand_oobinfo *oobinfo;
-	uint32_t badblock_pos;
-	uint32_t fsdata_pos;
-	uint32_t fsdata_len;
-#endif
-
-	/* OS-private pointer for getting back to master superblock info */
-	void *os_priv;
-};
-
-#endif /* _JFFS2_FB_SB */
diff --git a/components/dfs/filesystems/jffs2/include/port/codes.h b/components/dfs/filesystems/jffs2/include/port/codes.h
deleted file mode 100644
index 2426465c84..0000000000
--- a/components/dfs/filesystems/jffs2/include/port/codes.h
+++ /dev/null
@@ -1,99 +0,0 @@
-#ifndef CYGONCE_ERROR_CODES_H
-#define CYGONCE_ERROR_CODES_H
-/*===========================================================================
-//
-//      codes.h
-//
-//      Common error code definitions
-//
-//===========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####
-// -------------------------------------------
-// This file is part of eCos, the Embedded Configurable Operating System.
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under
-// the terms of the GNU General Public License as published by the Free
-// Software Foundation; either version 2 or (at your option) any later
-// version.
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-// for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with eCos; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-//
-// As a special exception, if other files instantiate templates or use
-// macros or inline functions from this file, or you compile this file
-// and link it with other works to produce a work based on this file,
-// this file does not by itself cause the resulting work to be covered by
-// the GNU General Public License. However the source code for this file
-// must still be made available in accordance with section (3) of the GNU
-// General Public License v2.
-//
-// This exception does not invalidate any other reasons why a work based
-// on this file might be covered by the GNU General Public License.
-// -------------------------------------------
-// ####ECOSGPLCOPYRIGHTEND####
-//===========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):    jlarmour
-// Contributors: jlarmour
-// Date:         2000-04-14
-// Purpose:      To provide a common set of error codes
-// Description:  This provides a common set of error codes that all
-//               packages can agree on. It doesn't preclude them defining
-//               their own error return system, but this is a preferable
-//               system to use to help error support be as general as
-//               possible.
-//
-//               We try and conform to the ANSI/POSIX error code format,
-//               namely starting with the character 'E'
-//
-// Usage:        #include <cyg/error/codes.h>
-//
-//               Example:
-//
-//               err=myfun();
-//               if (err != ENOERR)
-//               {
-//                 str=strerror(err);
-//                 printf("myfun returned error: %s\n", str);
-//               }
-//               else ....
-//
-//####DESCRIPTIONEND####
-//
-//=========================================================================*/
-
-/* CONFIGURATION */
-
-//#include <pkgconf/error.h>      prife    // Configuration header
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* TYPE DEFINITIONS */
-
-/* A type for error codes which may be useful to explain the purpose of
- * a variable or return code. It shows that it contains an error code
- * of the type defined below */
-
-typedef int Cyg_ErrNo;
-
-#include <rtthread.h>
-
-#define ENOERR  RT_EOK
-
-#ifdef __cplusplus
-}   /* extern "C" */
-#endif
-
-#endif /* CYGONCE_ERROR_CODES_H multiple inclusion protection */
-
-/* EOF codes.h */
diff --git a/components/dfs/filesystems/jffs2/include/port/fcntl.h b/components/dfs/filesystems/jffs2/include/port/fcntl.h
deleted file mode 100644
index fcc3088fc7..0000000000
--- a/components/dfs/filesystems/jffs2/include/port/fcntl.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef CYGONCE_ISO_FCNTL_H
-#define CYGONCE_ISO_FCNTL_H
-
-/*------------------------------------------------------------------------*/
-/* for dfs_jffs2.c                                                        */
-/*------------------------------------------------------------------------*/
-/* File access modes used for open() and fnctl() */
-#define JFFS2_O_RDONLY     (O_RDONLY)   /* Open for reading only */
-#define JFFS2_O_WRONLY     (O_WRONLY)   /* Open for writing only */
-#define JFFS2_O_RDWR       (O_RDONLY|O_WRONLY) /* Open for reading and writing */
-
-/* File access mode mask */
-#define JFFS2_O_ACCMODE    (O_RDONLY|O_RDWR|O_WRONLY)
-
-/* open() mode flags */
-
-#define JFFS2_O_CREAT      (O_CREAT)   /* Create file it it does not exist */
-#define JFFS2_O_EXCL       (O_EXCL)    /* Exclusive use */
-#define JFFS2_O_NOCTTY     (O_NOCTTY)  /* Do not assign a controlling terminal */
-#define JFFS2_O_TRUNC      (O_TRUNC)   /* Truncate */
-
-/* File status flags used for open() and fcntl() */
-#define JFFS2_O_APPEND     (O_APPEND)  /* Set append mode */
-#define JFFS2_O_DSYNC      (O_DSYNC)   /* Synchronized I/O data integrity writes */
-#define JFFS2_O_NONBLOCK   (O_NONBLOCK)/* No delay */
-#define JFFS2_O_RSYNC      (O_RSYNC)   /* Synchronized read I/O */
-#define JFFS2_O_SYNC       (O_SYNC)    /* Synchronized I/O file integrity writes */
-
-#endif
-
-/* EOF fcntl.h */
diff --git a/components/dfs/filesystems/jffs2/include/port/sys/stat.h b/components/dfs/filesystems/jffs2/include/port/sys/stat.h
deleted file mode 100644
index 43958a752f..0000000000
--- a/components/dfs/filesystems/jffs2/include/port/sys/stat.h
+++ /dev/null
@@ -1,294 +0,0 @@
-#ifndef CYGONCE_ISO_SYS_TYPES_H
-#define CYGONCE_ISO_SYS_TYPES_H
-/*========================================================================
-//
-//      sys/types.h
-//
-//      POSIX types
-//
-//========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####
-// -------------------------------------------
-// This file is part of eCos, the Embedded Configurable Operating System.
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under
-// the terms of the GNU General Public License as published by the Free
-// Software Foundation; either version 2 or (at your option) any later
-// version.
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-// for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with eCos; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-//
-// As a special exception, if other files instantiate templates or use
-// macros or inline functions from this file, or you compile this file
-// and link it with other works to produce a work based on this file,
-// this file does not by itself cause the resulting work to be covered by
-// the GNU General Public License. However the source code for this file
-// must still be made available in accordance with section (3) of the GNU
-// General Public License v2.
-//
-// This exception does not invalidate any other reasons why a work based
-// on this file might be covered by the GNU General Public License.
-// -------------------------------------------
-// ####ECOSGPLCOPYRIGHTEND####
-//========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):     jlarmour
-// Contributors:
-// Date:          2000-04-14
-// Purpose:       This file provides various types required by POSIX 1003.1.
-// Description:   The real contents of this file get set from the
-//                configuration (set by the implementation)
-// Usage:         #include <sys/types.h>
-//
-//####DESCRIPTIONEND####
-//
-//======================================================================
-*/
-
-/* CONFIGURATION */
-
-//#include <pkgconf/system.h>
-//#include <pkgconf/isoinfra.h>          /* Configuration header */
-
-/* INCLUDES */
-
-/* This is the "standard" way to get size_t from stddef.h,
- * which is the canonical location of the definition.
- */
-//#define __need_size_t
-//#include <stddef.h>
-#include "port/codes.h"
-
-/*
-#ifndef dev_t
-typedef short dev_t;
-#endif
-
-#ifndef ino_t
-typedef unsigned int ino_t;
-#endif
-
-#ifndef mode_t
-typedef unsigned int mode_t;
-#endif
-*/
-
-typedef unsigned short nlink_t;
-typedef long off_t;
-
-typedef unsigned short gid_t;
-typedef unsigned short uid_t;
-typedef int pid_t;
-
-//
-typedef void *cyg_io_handle_t;
-
-/* Variable names for pathconf()			*/
-#define _PC_ASYNC_IO                 1
-#define	_PC_CHOWN_RESTRICTED	     2
-#define	_PC_LINK_MAX		         3
-#define	_PC_MAX_CANON		         4
-#define	_PC_MAX_INPUT		         5
-#define	_PC_NAME_MAX		         6
-#define	_PC_NO_TRUNC		         7
-#define	_PC_PATH_MAX		         8
-#define	_PC_PIPE_BUF		         9
-#define _PC_PRIO_IO                 10
-#define _PC_SYNC_IO                 11
-#define	_PC_VDISABLE		        12
-
-//limit.h
-/* DEFINES */
-
-/*-----------------------------------------------------------------------------
- * Minimum values from POSIX.1 tables 2-3, 2-7 and 2-7a.
-
- * These are the standard-mandated minimum values.
- * These values do not vary with the implementation - they may
- * simply be defined
- */
-
-/* Minimum number of operations in one list I/O call.  */
-#define _POSIX_AIO_LISTIO_MAX	2
-
-/* Minimal number of outstanding asynchronous I/O operations.  */
-#define _POSIX_AIO_MAX		1
-
-/* Maximum length of arguments to `execve', including environment.  */
-#define	_POSIX_ARG_MAX		4096
-
-/* Maximum simultaneous processes per real user ID.  */
-#define	_POSIX_CHILD_MAX	6
-
-/* Minimal number of timer expiration overruns.  */
-#define _POSIX_DELAYTIMER_MAX	32
-
-/* Maximum link count of a file.  */
-#define	_POSIX_LINK_MAX		8
-
-/* Size of storage required for a login name */
-#define _POSIX_LOGIN_NAME_MAX   9
-
-/* Number of bytes in a terminal canonical input queue.  */
-#define	_POSIX_MAX_CANON	255
-
-/* Number of bytes for which space will be
-   available in a terminal input queue.  */
-#define	_POSIX_MAX_INPUT	255
-
-/* Maximum number of message queues open for a process.  */
-#define _POSIX_MQ_OPEN_MAX	8
-
-/* Maximum number of supported message priorities.  */
-#define _POSIX_MQ_PRIO_MAX	32
-
-/* Number of bytes in a filename.  */
-#define	_POSIX_NAME_MAX		14
-
-/* Number of simultaneous supplementary group IDs per process.  */
-#define	_POSIX_NGROUPS_MAX	0
-
-/* Number of files one process can have open at once.  */
-#define	_POSIX_OPEN_MAX		16
-
-/* Number of bytes in a pathname.  */
-#define	_POSIX_PATH_MAX		255
-
-/* Number of bytes than can be written atomically to a pipe.  */
-#define	_POSIX_PIPE_BUF		512
-
-/* Minimal number of realtime signals reserved for the application.  */
-#define _POSIX_RTSIG_MAX	8
-
-/* Number of semaphores a process can have.  */
-#define _POSIX_SEM_NSEMS_MAX	256
-
-/* Maximal value of a semaphore.  */
-#define _POSIX_SEM_VALUE_MAX	32767
-
-/* Number of pending realtime signals.  */
-#define _POSIX_SIGQUEUE_MAX	32
-
-/* Largest value of a `ssize_t'.  */
-#define	_POSIX_SSIZE_MAX	32767
-
-/* Number of streams a process can have open at once.  */
-#define	_POSIX_STREAM_MAX	8
-
-/* Controlling the iterations of destructors for thread-specific data.  */
-#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS	4
-
-/* The number of data keys per process.  */
-#define _POSIX_THREAD_KEYS_MAX	128
-
-/* The number of threads per process.  */
-#define _POSIX_THREAD_THREADS_MAX	64
-
-/* Maximum number of characters in a tty name.  */
-#define	_POSIX_TTY_NAME_MAX	9
-
-/* Number of timer for a process.  */
-#define _POSIX_TIMER_MAX	32
-
-/* Maximum length of a timezone name (element of `tzname').  */
-#define	_POSIX_TZNAME_MAX	3
-
-/* Maximum clock resolution in nanoseconds.  */
-#define _POSIX_CLOCKRES_MIN	20000000
-
-
-#ifdef CYGBLD_ISO_SSIZET_HEADER
-# include CYGBLD_ISO_SSIZET_HEADER
-#else
-# ifndef __STRICT_ANSI__
-#  define SSIZE_MAX LONG_MAX
-# endif
-#endif
-
-/* INCLUDES */
-
-#ifdef CYGBLD_ISO_OPEN_MAX_HEADER
-# include CYGBLD_ISO_OPEN_MAX_HEADER
-#else
-# ifndef __STRICT_ANSI__
-#  define OPEN_MAX _POSIX_OPEN_MAX
-# endif
-#endif
-
-#ifdef CYGBLD_ISO_LINK_MAX_HEADER
-# include CYGBLD_ISO_LINK_MAX_HEADER
-#else
-# ifndef __STRICT_ANSI__
-#  define LINK_MAX _POSIX_LINK_MAX
-# endif
-#endif
-
-#ifdef CYGBLD_ISO_NAME_MAX_HEADER
-# include CYGBLD_ISO_NAME_MAX_HEADER
-#else
-# ifndef __STRICT_ANSI__
-#  define NAME_MAX _POSIX_NAME_MAX
-# endif
-#endif
-
-#ifdef CYGBLD_ISO_PATH_MAX_HEADER
-# include CYGBLD_ISO_PATH_MAX_HEADER
-#else
-# ifndef __STRICT_ANSI__
-#  define PATH_MAX _POSIX_PATH_MAX
-# endif
-#endif
-
-#if CYGINT_ISO_POSIX_LIMITS
-# ifdef CYGBLD_ISO_POSIX_LIMITS_HEADER
-#  include CYGBLD_ISO_POSIX_LIMITS_HEADER
-# endif
-#endif
-
-
-#define CYGNUM_FILEIO_MTAB_MAX  16
-
-//-----------------------------------------------
-//  stat.h need by fs-ecos.h
-//-----------------------------------------------
-#define __stat_mode_DIR    (1<<0)
-#define __stat_mode_CHR    (1<<1)
-#define __stat_mode_BLK    (1<<2)
-#define __stat_mode_REG    (1<<3)
-#define __stat_mode_FIFO   (1<<4)
-#define __stat_mode_MQ     (1<<5)
-#define __stat_mode_SEM    (1<<6)
-#define __stat_mode_SHM    (1<<7)
-#define __stat_mode_LNK    (1<<8)
-#define __stat_mode_SOCK   (1<<9)
-
-#if defined(MSVC)
-/* for time_t */
-#include <time.h>
-typedef unsigned long mode_t;
-typedef unsigned int ino_t;
-typedef unsigned int dev_t;
-typedef long ssize_t;
-#elif defined(__CC_ARM)  
-#define mode_t unsigned long
-typedef unsigned int ino_t;
-typedef unsigned int dev_t;
-typedef long ssize_t;
-typedef long time_t;
-#elif defined(__GNUC__) && !defined(__CC_ARM)
-#include <sys/types.h>
-#endif
-
-#endif /* CYGONCE_ISO_SYS_TYPES_H multiple inclusion protection */
-
-/* EOF sys/types.h */
-
diff --git a/components/dfs/filesystems/jffs2/include/port/sys/types.h b/components/dfs/filesystems/jffs2/include/port/sys/types.h
deleted file mode 100644
index ab195a57ea..0000000000
--- a/components/dfs/filesystems/jffs2/include/port/sys/types.h
+++ /dev/null
@@ -1,90 +0,0 @@
-#ifndef CYGONCE_ISO_SYS_TYPES_H
-#define CYGONCE_ISO_SYS_TYPES_H
-/*========================================================================
-//
-//      sys/types.h
-//
-//      POSIX types
-//
-//========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####
-// -------------------------------------------
-// This file is part of eCos, the Embedded Configurable Operating System.
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under
-// the terms of the GNU General Public License as published by the Free
-// Software Foundation; either version 2 or (at your option) any later
-// version.
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-// for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with eCos; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-//
-// As a special exception, if other files instantiate templates or use
-// macros or inline functions from this file, or you compile this file
-// and link it with other works to produce a work based on this file,
-// this file does not by itself cause the resulting work to be covered by
-// the GNU General Public License. However the source code for this file
-// must still be made available in accordance with section (3) of the GNU
-// General Public License v2.
-//
-// This exception does not invalidate any other reasons why a work based
-// on this file might be covered by the GNU General Public License.
-// -------------------------------------------
-// ####ECOSGPLCOPYRIGHTEND####
-//========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):     jlarmour
-// Contributors:
-// Date:          2000-04-14
-// Purpose:       This file provides various types required by POSIX 1003.1.
-// Description:   The real contents of this file get set from the
-//                configuration (set by the implementation)
-// Usage:         #include <sys/types.h>
-//
-//####DESCRIPTIONEND####
-//
-//======================================================================
-*/
-
-/* CONFIGURATION */
-
-//#include <pkgconf/system.h>
-//#include <pkgconf/isoinfra.h>          /* Configuration header */
-
-/* INCLUDES */
-
-/* This is the "standard" way to get size_t from stddef.h,
- * which is the canonical location of the definition.
- */
-//#define __need_size_t
-//#include <stddef.h>
-
-typedef long ssize_t;
-
-typedef short dev_t;
-typedef unsigned int ino_t;
-typedef unsigned short nlink_t;
-typedef long off_t;
-
-typedef unsigned short gid_t;
-typedef unsigned short uid_t;
-typedef int pid_t;
-
-#if defined(MSVC)
-#include <time.h>
-#else
-typedef int time_t;
-#endif
-//#include "os_sys_stat.h"
-#endif /* CYGONCE_ISO_SYS_TYPES_H multiple inclusion protection */
-
-/* EOF sys/types.h */
-
diff --git a/components/dfs/filesystems/jffs2/jffs2_config.h b/components/dfs/filesystems/jffs2/jffs2_config.h
deleted file mode 100644
index 3340f1ff17..0000000000
--- a/components/dfs/filesystems/jffs2/jffs2_config.h
+++ /dev/null
@@ -1,53 +0,0 @@
-#ifndef JFFS2_CONFIG_H
-#define JFFS2_CONFIG_H
-
-#define __ECOS  /* must be defined */
-
-#define FILE_PATH_MAX                128  /* the longest file path */
-#define CONFIG_JFFS2_ENTRY_NAME_MAX  23
-#define	JFFS2_NAME_MAX   CONFIG_JFFS2_ENTRY_NAME_MAX  
-#define	JFFS2_PATH_MAX   FILE_PATH_MAX
-
-#define DEVICE_PART_MAX   1  /* the max partions on a nand deivce*/
-
-/* memory page size in kernel/asm/page.h, it is correspond with flash read/write
- * option, so this size has a great impact on reading/writing speed */
-#define CONFIG_JFFS2_PAGE_SHIFT  12  /* (1<<12) 4096bytes*/
-
-/* jffs2 support relative dir, command "ls" will get
- * +-------------------------------+
- * |   finsh>>ls("/")              |
- * |   Directory /:                |
- * |   .                   <DIR>   |
- * |   ..                  <DIR>   |
- * |   dir1                <DIR>   |
- * +-------------------------------+
- */
-#define CONFIG_JFFS2_NO_RELATIVEDIR
-
-//#define CYGPKG_FS_JFFS2_RET_DIRENT_DTYPE
-#if defined(CYGPKG_FS_JFFS2_RET_DIRENT_DTYPE)
-	#define CYGPKG_FILEIO_DIRENT_DTYPE
-#endif
-
-#define CYGOPT_FS_JFFS2_WRITE /* if not defined, jffs2 is read only*/
-
-/* jffs2 debug output opion */
-#define CONFIG_JFFS2_FS_DEBUG 		0  /* 1 or 2 */
-
-/* jffs2 gc thread section */
-//#define CYGOPT_FS_JFFS2_GCTHREAD
-#define CYGNUM_JFFS2_GC_THREAD_PRIORITY  (RT_THREAD_PRIORITY_MAX-2) /* GC thread's priority */
-#define CYGNUM_JFFS2_GS_THREAD_TICKS  20  /* event timeout ticks */
-#define CYGNUM_JFFS2_GC_THREAD_TICKS  20  /* GC thread's running ticks */
-
-//#define CONFIG_JFFS2_FS_WRITEBUFFER /* should not be enabled */
-
-/* zlib section*/
-//#define CONFIG_JFFS2_ZLIB
-//#define CONFIG_JFFS2_RTIME
-//#define CONFIG_JFFS2_RUBIN
-//#define CONFIG_JFFS2_CMODE_NONE
-//#define CONFIG_JFFS2_CMODE_SIZE
-
-#endif
diff --git a/components/dfs/filesystems/jffs2/kernel/asm/atomic.h b/components/dfs/filesystems/jffs2/kernel/asm/atomic.h
deleted file mode 100644
index 5cb72ff8ce..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/asm/atomic.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef __ASM_ATOMIC_H__
-#define __ASM_ATOMIC_H__
-
-#define atomic_t int
-#define atomic_inc(atom) (*atom)++
-#define atomic_dec(atom) (*atom)--
-#define atomic_read(atom) (*atom)
-
-
-#endif /* __ASM_ATOMIC_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/asm/bug.h b/components/dfs/filesystems/jffs2/kernel/asm/bug.h
deleted file mode 100644
index 054dedc3d3..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/asm/bug.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_BUG_H__
-#define __ASM_BUG_H__
-
-#define BUG() do { printf("BUG() at %s %d\n", __FILE__, __LINE__); *(int *)0=0; } while (0)
-
-#endif /* __ASM_BUG_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/asm/page.h b/components/dfs/filesystems/jffs2/kernel/asm/page.h
deleted file mode 100644
index af3081164f..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/asm/page.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef __ASM_PAGE_H__
-#define __ASM_PAGE_H__
-
-//#include <pkgconf/linux_compat.h>  //mod by prife
-#include "jffs2_config.h"
-#define PAGE_SHIFT  CONFIG_JFFS2_PAGE_SHIFT
-/* These aren't used by much yet. If that changes, you might want
-   to make them actually correct :) */
-#define PAGE_SIZE  (0x1 << PAGE_SHIFT)
-
-
-#endif /* __ASM_PAGE_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/asm/semaphore.h b/components/dfs/filesystems/jffs2/kernel/asm/semaphore.h
deleted file mode 100644
index 94a4f3abd9..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/asm/semaphore.h
+++ /dev/null
@@ -1,120 +0,0 @@
-#ifndef __ASM_SEMAPHORE_H__
-#define __ASM_SEMAPHORE_H__
-
-#define CONFIG_JFFS2_SEMAPHORE  0 // no mutex, 1 use static, 2 use dynamic
-#if CONFIG_JFFS2_SEMAPHORE == 0
-//#include <cyg/hal/drv_api.h>
-
-struct semaphore {
-	int x;
-};
-
-#define DECLARE_MUTEX(x)
-#define DECLARE_MUTEX_LOCKED(x)
-
-#define init_MUTEX(sem)
-#define init_MUTEX_LOCKED(sem)
-#define down(sem)
-#define down_interruptible(sem)  0
-#define down_trylock(sem)
-#define up(sem)
-
-#elif CONFIG_JFFS2_SEMAPHORE == 1
-#include <rtthread.h>
-
-struct semaphore {
-	struct rt_mutex mutex;
-};
-
-#define DECLARE_MUTEX(x)
-#define DECLARE_MUTEX_LOCKED(x)
-rt_inline void init_MUTEX(struct semaphore * sem)
-{
-   if (rt_mutex_init((rt_mutex_t)sem, "mutex", RT_IPC_FLAG_FIFO) == RT_EOK)
-   {
-	   /* detach the object from system object container */
-	   rt_object_detach(&(((rt_mutex_t)sem)->parent.parent));
-	   return;
-   }
-   rt_kprintf("get an error at %s:%d \n",  __FUNCTION__, __LINE__);
-   RT_ASSERT(0);
-}
-
-rt_inline void init_MUTEX_LOCKED(struct semaphore * sem)
-{
-   rt_enter_critical();
-   if (rt_mutex_init((rt_mutex_t)sem, "mutex", RT_IPC_FLAG_FIFO) == RT_EOK)
-   {
-	   /* detach the object from system object container */
-	   rt_object_detach(&(((rt_mutex_t)sem)->parent.parent));
-	   rt_exit_critical();
-	   rt_mutex_take((rt_mutex_t)sem, RT_WAITING_FOREVER);
-	   return;
-   }
-   rt_exit_critical();
-
-   rt_kprintf("get an error at %s:%d \n",  __FUNCTION__, __LINE__);
-   RT_ASSERT(0);
-}
-
-rt_inline down(struct semaphore * sem)
-{
-	rt_mutex_take((rt_mutex_t)sem, RT_WAITING_FOREVER);
-}
-rt_inline int down_interruptible(struct semaphore* sem)
-{
-	rt_mutex_take((rt_mutex_t)sem, RT_WAITING_FOREVER);
-    return 0;
-}
-rt_inline up(struct semaphore * sem)
-{
-	rt_mutex_release((rt_mutex_t)sem);
-}
-#elif CONFIG_JFFS2_SEMAPHORE == 2
-
-#include <rtthread.h>
-
-struct semaphore {
-	 rt_mutex_t mutex;
-};
-
-#define DECLARE_MUTEX(x)
-#define DECLARE_MUTEX_LOCKED(x)
-
-rt_inline void init_MUTEX(struct semaphore * sem)
-{
-	sem->mutex = rt_mutex_create("mutex", RT_IPC_FLAG_FIFO);
-}
-rt_inline init_MUTEX_LOCKED(struct semaphore * sem)
-{
-	sem->mutex = rt_mutex_create("mutex", RT_IPC_FLAG_FIFO);
-	rt_mutex_take(sem->mutex,  RT_WAITING_FOREVER);
-}
-rt_inline down(struct semaphore * sem)
-{
-	rt_mutex_take(sem->mutex,  RT_WAITING_FOREVER);
-}
-rt_inline int down_interruptible(struct semaphore* sem)
-{
-	rt_mutex_take(sem->mutex,  RT_WAITING_FOREVER);
-    return 0;
-}
-/*
-Attempt to lock the mutex pointed to by the mutex argument without waiting. 
-If the mutex is already locked by some other thread then this function 
-returns FALSE. If the function can lock the mutex without waiting, then 
-TRUE is returned. 
-void cyg_drv_mutex_unlock( cyg_drv_mutex *mutex )
-*/
-
-//#define down_trylock(struct semaphore * sem)  rt_mutex_take((rt_mutex_t)sem,  RT_WAITING_NO)
-rt_inline up(struct semaphore * sem)
-{
-	rt_mutex_release(sem->mutex);
-}
-
-#else
-#error "CONFIG_JFFS2_SEMAPHORE should be 0, 1 or 2"
-#endif
-
-#endif /* __ASM_SEMAPHORE_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/TODO b/components/dfs/filesystems/jffs2/kernel/linux/TODO
deleted file mode 100644
index df8a6d1a51..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/TODO
+++ /dev/null
@@ -1,11 +0,0 @@
-
-This contains a very limited set of Linux-compatibility headers, initially
-just for getting JFFS2 to build.
-
-Some things are simply stubs which don't _work_, to allow the JFFS2 code
-to compile. Note that you may need to implement these _properly_ in order
-to use these for making other Linux code work, or indeed for making the 
-JFFS2 NAND support work.
-
-The non-working parts include, but are not limited to: 
-	workqueue.h, wait.h, timer.h, spinlock.h, sched.h, compiler.h
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/compiler.h b/components/dfs/filesystems/jffs2/kernel/linux/compiler.h
deleted file mode 100644
index fb253651a3..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/compiler.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef __LINUX_COMPILER_H__
-#define __LINUX_COMPILER_H__
-
-#define likely(x) (x)
-#define unlikely(x) (x)
-
-#endif /* __LINUX_COMPILER_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/completion.h b/components/dfs/filesystems/jffs2/kernel/linux/completion.h
deleted file mode 100644
index d2493b2710..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/completion.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __LINUX_COMPLETION_H__
-#define __LINUX_COMPLETION_H__
-
-#if defined (__GNUC__)    
-struct completion { } ;
-#elif defined (MSVC)
-struct completion {int no; } ;
-#else
-#error "please use a right C compiler"
-#endif
-
-#endif /* __LINUX_COMPLETION_H__ */
-
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/config.h b/components/dfs/filesystems/jffs2/kernel/linux/config.h
deleted file mode 100644
index 355e175f65..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/config.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef __LINUX_CONFIG_H__
-#define __LINUX_CONFIG_H__
-
-#define GFP_KERNEL 0
-
-/* #define CONFIG_JFFS2_FS_WRITEBUFFER 0 */
-/* #define CONFIG_JFFS2_PROC  */
-/* #define CONFIG_JFFS2_RTIME */
-/* #define CONFIG_JFFS2_RUBIN */
-/* #define CONFIG_JFFS2_ZLIB  */
-
-#endif /* __LINUX_CONFIG_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/crc32.h b/components/dfs/filesystems/jffs2/kernel/linux/crc32.h
deleted file mode 100644
index 8d19a1eb62..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/crc32.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef CRC32_H
-#define CRC32_H
-
-#include <cyg/crc/crc.h>
-
-#define crc32(val, s, len) cyg_crc32_accumulate(val, (unsigned char *)s, len)
-
-#endif
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/errno.h b/components/dfs/filesystems/jffs2/kernel/linux/errno.h
deleted file mode 100644
index 2938632411..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/errno.h
+++ /dev/null
@@ -1,2 +0,0 @@
-//#include <errno.h>
-#include "port/codes.h" //fixme
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/fs.h b/components/dfs/filesystems/jffs2/kernel/linux/fs.h
deleted file mode 100644
index 94f493c91a..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/fs.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __LINUX_FS_H__
-#define __LINUX_FS_H__
-
-#include <linux/stat.h>
-
-#endif /* __LINUX_FS_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/init.h b/components/dfs/filesystems/jffs2/kernel/linux/init.h
deleted file mode 100644
index e4c702f996..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/init.h
+++ /dev/null
@@ -1,3 +0,0 @@
-#ifndef __LINUX_INIT_H__
-#define __LINUX_INIT_H__
-#endif
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/kernel.h b/components/dfs/filesystems/jffs2/kernel/linux/kernel.h
deleted file mode 100644
index a0c94a1996..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/kernel.h
+++ /dev/null
@@ -1,38 +0,0 @@
-#ifndef __LINUX_KERNEL_H__
-#define __LINUX_KERNEL_H__
-//#include <cyg/infra/diag.h>
-//#include <stdio.h>  //mod by prife @ 2011/11/20
-#include "jffs2_config.h"
-
-#define jiffies 100
-
-#define ERR_PTR(err) ((void*)(err))
-#define PTR_ERR(err) ((unsigned long)(err))
-#define IS_ERR(err) ((unsigned long)err > (unsigned long)-1000L)
-
-#define CURRENT_TIME jffs2_get_timestamp()
-
-#define	KERN_EMERG              "<0>" // system is unusable
-#define	KERN_ALERT              "<1>" // action must be taken immediately
-#define	KERN_CRIT               "<2>" // critical conditions
-#define	KERN_ERR                "<3>" // error conditions
-#define	KERN_WARNING            "<4>" // warning conditions
-#define	KERN_NOTICE             "<5>" // normal but significant condition
-#define	KERN_INFO               "<6>" // informational
-#define	KERN_DEBUG              "<7>" // debug-level messages
-#define printk rt_kprintf//diag_printf  //mod by prife
-
-#ifndef min  //mod by prife
-#define min(x,y) (x<y?x:y)
-#endif
-#ifndef max
-#define max(x,y) (x<y?y:x)
-#endif
-#define min_t(t, x,y) ((t)x<(t)y?(t)x:(t)y)
-
-
-#endif /* __LINUX_KERNEL_H__ */
-
-
-
-
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/list.h b/components/dfs/filesystems/jffs2/kernel/linux/list.h
deleted file mode 100644
index 03c7b39cca..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/list.h
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- *
- * Created by Jonathan Larmour <jlarmour@redhat.com>
- * 
- *===========================================================================
- * ####ECOSGPLCOPYRIGHTBEGIN####                                            
- * -------------------------------------------                              
- * This file is part of eCos, the Embedded Configurable Operating System.   
- * Copyright (C) 2002, 2003 Free Software Foundation, Inc.                  
- *
- * eCos is free software; you can redistribute it and/or modify it under    
- * the terms of the GNU General Public License as published by the Free     
- * Software Foundation; either version 2 or (at your option) any later      
- * version.                                                                 
- *
- * eCos is distributed in the hope that it will be useful, but WITHOUT      
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
- * for more details.                                                        
- *
- * You should have received a copy of the GNU General Public License        
- * along with eCos; if not, write to the Free Software Foundation, Inc.,    
- * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
- *
- * As a special exception, if other files instantiate templates or use      
- * macros or inline functions from this file, or you compile this file      
- * and link it with other works to produce a work based on this file,       
- * this file does not by itself cause the resulting work to be covered by   
- * the GNU General Public License. However the source code for this file    
- * must still be made available in accordance with section (3) of the GNU   
- * General Public License v2.                                               
- *
- * This exception does not invalidate any other reasons why a work based    
- * on this file might be covered by the GNU General Public License.         
- * -------------------------------------------                              
- * ####ECOSGPLCOPYRIGHTEND####                                              
- *===========================================================================
- *
- */
-
-#ifndef CYGONCE_FS_JFFS2_LIST_H
-#define CYGONCE_FS_JFFS2_LIST_H
-
-
-/* -----------------------------------------------------------------------*/
-
-/* Doubly linked list implementation to replace the GPL'd one used in
-   the Linux kernel. */
-
-#include <stddef.h>
-#include <cyg/infra/cyg_type.h>
-
-/* TYPES */
-
-struct list_head {
-    struct list_head *next;
-    struct list_head *prev;
-};
-
-/* MACROS */
-
-#define LIST_HEAD_INIT(name) { &(name), &(name) }
-
-#define LIST_HEAD(name) \
-        struct list_head name = LIST_HEAD_INIT(name)
-
-#define INIT_LIST_HEAD( _list_ )              \
-CYG_MACRO_START                               \
-(_list_)->next = (_list_)->prev = (_list_);   \
-CYG_MACRO_END
-
-/* FUNCTIONS */
-
-/* Insert an entry _after_ the specified entry */
-static __inline__ void
-list_add( struct list_head *newent, struct list_head *afterthisent )
-{
-    struct list_head *next = afterthisent->next;
-    newent->next = next;
-    newent->prev = afterthisent;
-    afterthisent->next = newent;
-    next->prev = newent;
-} /* list_add() */
-
-/* Insert an entry _before_ the specified entry */
-static __inline__ void
-list_add_tail( struct list_head *newent, struct list_head *beforethisent )
-{
-    struct list_head *prev = beforethisent->prev;
-    newent->prev = prev;
-    newent->next = beforethisent;
-    beforethisent->prev = newent;
-    prev->next = newent;
-} /* list_add_tail() */
-
-/* Delete the specified entry */
-static __inline__ void
-list_del( struct list_head *ent )
-{
-    ent->prev->next = ent->next;
-    ent->next->prev = ent->prev;
-} /* list_del() */
-
-/* Is this list empty? */
-static __inline__ int
-list_empty( struct list_head *list )
-{
-    return ( list->next == list );
-} /* list_empty() */
-
-/* list_entry - Assuming you have a struct of type _type_ that contains a
-   list which has the name _member_ in that struct type, then given the
-   address of that list in the struct, _list_, this returns the address
-   of the container structure */
-
-#define list_entry( _list_, _type_, _member_ ) \
-    ((_type_ *)((char *)(_list_)-(char *)(offsetof(_type_,_member_))))
-
-/* list_for_each - using _ent_, iterate through list _list_ */
-
-#define list_for_each( _ent_, _list_ )   \
-    for ( (_ent_) = (_list_)->next;      \
-    (_ent_) != (_list_);                 \
-    (_ent_) = (_ent_)->next )
-
-/*
- * list_for_each_entry - this function can be use to iterate over all
- * items in a list* _list_ with it's head at _head_ and link _item_
- */
-#if defined (__GNUC__)   
-#define list_for_each_entry(_list_, _head_, _item_)                     \
-for ((_list_) = list_entry((_head_)->next, typeof(*_list_), _item_); \
-     &((_list_)->_item_) != (_head_);                                 \
-     (_list_) = list_entry((_list_)->_item_.next, typeof(*_list_), _item_))
-
-#elif defined (MSVC)
-#define list_for_each_entry(_list_, _head_, _item_)                     \
-for ((_list_) = list_entry((_head_)->next, struct jffs2_compressor, _item_); \
-     &((_list_)->_item_) != (_head_);                                 \
-     (_list_) = list_entry((_list_)->_item_.next, struct jffs2_compressor, _item_))
-#else
-#endif
-/* -----------------------------------------------------------------------*/
-#endif /* #ifndef CYGONCE_FS_JFFS2_LIST_H */
-/* EOF list.h */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/mtd/compatmac.h b/components/dfs/filesystems/jffs2/kernel/linux/mtd/compatmac.h
deleted file mode 100644
index cee3749250..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/mtd/compatmac.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef __LINUX_MTD_COMPATMAC_H__
-#define __LINUX_MTD_COMPATMAC_H__
-
-
-#endif /* __LINUX_MTD_COMPATMAC_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/mtd/mtd.h b/components/dfs/filesystems/jffs2/kernel/linux/mtd/mtd.h
deleted file mode 100644
index 817d31cf6f..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/mtd/mtd.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef __LINUX_MTD_MTD_H__
-#define __LINUX_MTD_MTD_H__
-
-
-#endif /* __LINUX_MTD_MTD_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/pagemap.h b/components/dfs/filesystems/jffs2/kernel/linux/pagemap.h
deleted file mode 100644
index fccf9c4061..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/pagemap.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef __LINUX_PAGEMAP_H__
-#define __LINUX_PAGEMAP_H__
-
-#include <asm/bug.h>
-#include <asm/page.h>
-
-#define PAGE_CACHE_SHIFT        PAGE_SHIFT
-#define PAGE_CACHE_SIZE         PAGE_SIZE
-
-#define PageLocked(pg) 1
-#define Page_Uptodate(pg) 0
-#define UnlockPage(pg) 
-#define PAGE_BUG(pg) BUG()
-#define ClearPageUptodate(pg)
-#define SetPageError(pg)
-#define ClearPageError(pg)
-#define SetPageUptodate(pg)
-
-#endif /* __LINUX_PAGEMAP_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/rbtree.h b/components/dfs/filesystems/jffs2/kernel/linux/rbtree.h
deleted file mode 100644
index ffda277e88..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/rbtree.h
+++ /dev/null
@@ -1,62 +0,0 @@
-#ifndef	_LINUX_RBTREE_H
-#define	_LINUX_RBTREE_H
-
-#if defined (__GNUC__) 
-#elif defined (MSVC)
-#define __inline__ __inline 
-#define inline __inline
-#else
-#endif
-
-struct rb_node {
-	struct rb_node *rb_left;	/* left element */
-	struct rb_node *rb_right;	/* right element */
-	struct rb_node *rb_parent;	/* parent element */
-	int rb_color;			/* node color */
-};
-
-struct rb_root {
-	struct rb_node *rb_node; /* root of the tree */
-};
-
-#ifndef NULL
-#define NULL ((void *)0)
-#endif
-
-#if defined (__GNUC__) 
-#define RB_ROOT ((struct rb_root){NULL})
-#elif defined (MSVC)
-#define RB_ROOT {NULL}//{struct rb_root _x = {NULL};}
-#else
-#endif
-
-#define rb_entry(p, container, field)		\
-	((container *) ((char *)p - ((char *)&(((container *)0)->field))))
-
-#define RB_BLACK	0
-#define RB_RED		1
-
-
-extern void rb_insert_color(struct rb_node *, struct rb_root *);
-extern void rb_erase(struct rb_node *, struct rb_root *);
-
-/* Find logical next and previous nodes in a tree */
-extern struct rb_node *rb_next(struct rb_node *);
-extern struct rb_node *rb_prev(struct rb_node *);
-extern struct rb_node *rb_first(struct rb_root *);
-
-/* Fast replacement of a single node without remove/rebalance/add/rebalance */
-extern void rb_replace_node(struct rb_node *victim, struct rb_node *new, 
-			    struct rb_root *root);
-
-static inline void rb_link_node(struct rb_node * node, struct rb_node * parent,
-				struct rb_node ** rb_link)
-{
-	node->rb_parent = parent;
-	node->rb_color = RB_RED;
-	node->rb_left = node->rb_right = NULL;
-
-	*rb_link = node;
-}
-
-#endif	/* _LINUX_RBTREE_H */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/rwsem.h b/components/dfs/filesystems/jffs2/kernel/linux/rwsem.h
deleted file mode 100644
index d648a150ca..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/rwsem.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __LINUX_RWSEM_H__
-#define __LINUX_RWSEM_H__
-
-// eCos does not have the concept of a read/write semaphore. So just
-// map them onto normal semaphores and hope we don't deadlock
-// somewhere.
-
-#include <asm/semaphore.h>
-
-struct rw_semaphore;
-
-#define down_read(sem) cyg_drv_mutex_lock((cyg_drv_mutex_t *)sem)
-#define down_read_trylock(sem) cyg_drv_mutex_trylock((cyg_drv_mutex_t *)sem)
-#define down_write(sem) cyg_drv_mutex_lock((cyg_drv_mutex_t *)sem)
-#define down_write_trylock(sem) cyg_drv_mutex_trylock((cyg_drv_mutex_t *)sem)
-#define up_read(sem) cyg_drv_mutex_unlock((cyg_drv_mutex_t *)sem)
-#define up_write(sem) cyg_drv_mutex_unlock((cyg_drv_mutex_t *)sem)
-#define downgrade_write(sem) 
-
-#endif // __LINUX_RWSEM_H__ 
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/sched.h b/components/dfs/filesystems/jffs2/kernel/linux/sched.h
deleted file mode 100644
index 14a7359754..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/sched.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef __LINUX_SCHED_H__
-#define __LINUX_SCHED_H__
-
-#define cond_resched() do { } while(0)
-#define signal_pending(x) (0)
-
-#endif /* __LINUX_SCHED_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/slab.h b/components/dfs/filesystems/jffs2/kernel/linux/slab.h
deleted file mode 100644
index f5c5745b0e..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/slab.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef __LINUX_SLAB_H__
-#define __LINUX_SLAB_H__
-
-//#include <stdlib.h>  //prife
-
-#include <asm/page.h> /* Don't ask. Linux headers are a mess. */
-
-#define kmalloc(x, y) rt_malloc(x)
-#define kfree(x) rt_free(x)
-#define vmalloc(x) rt_malloc(x)
-#define vfree(x) rt_free(x)
-
-#endif /* __LINUX_SLAB_H__ */
-
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/spinlock.h b/components/dfs/filesystems/jffs2/kernel/linux/spinlock.h
deleted file mode 100644
index db3f4d4502..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/spinlock.h
+++ /dev/null
@@ -1,43 +0,0 @@
-#ifndef __LINUX_SPINLOCK_H__
-#define __LINUX_SPINLOCK_H__
-
-#if defined (__GNUC__)    
-typedef struct { } spinlock_t;
-
-#define SPIN_LOCK_UNLOCKED (spinlock_t) { }
-#define DEFINE_SPINLOCK(x) spinlock_t x = SPIN_LOCK_UNLOCKED
-#elif defined (MSVC)
-typedef struct {int no; } spinlock_t;
-
-#define SPIN_LOCK_UNLOCKED (spinlock_t) ( 0)
-#define DEFINE_SPINLOCK(x) spinlock_t x 
-#else
-#error "please use a right C compiler"
-#endif
-
-#define spin_lock_init(lock)             \
-CYG_MACRO_START;                         \
-CYG_UNUSED_PARAM(spinlock_t *, lock);    \
-CYG_MACRO_END
-
-#define spin_lock(lock)                  \
-CYG_MACRO_START;                         \
-CYG_UNUSED_PARAM(spinlock_t *, lock);    \
-CYG_MACRO_END
-
-#define spin_unlock(lock)                \
-CYG_MACRO_START;                         \
-CYG_UNUSED_PARAM(spinlock_t *, lock);    \
-CYG_MACRO_END
-
-#define spin_lock_bh(lock)               \
-CYG_MACRO_START;                         \
-CYG_UNUSED_PARAM(spinlock_t *, lock);    \
-CYG_MACRO_END
-
-#define spin_unlock_bh(lock)             \
-CYG_MACRO_START;                         \
-CYG_UNUSED_PARAM(spinlock_t *, lock);    \
-CYG_MACRO_END
-
-#endif /* __LINUX_SPINLOCK_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/stat.h b/components/dfs/filesystems/jffs2/kernel/linux/stat.h
deleted file mode 100644
index 8c79205229..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/stat.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef __LINUX_STAT_H__
-#define __LINUX_STAT_H__
-
-
-#include "port/sys/stat.h" //mod by prife
-
-#define S_IRUGO (S_IRUSR|S_IRGRP|S_IROTH)
-#define S_IWUGO (S_IWUSR|S_IWGRP|S_IWOTH)
-#define S_IXUGO (S_IXUSR|S_IXGRP|S_IXOTH)
-#define S_IRWXUGO (S_IRWXU|S_IRWXG|S_IRWXO)
-
-#endif /* __LINUX_STAT_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/string.h b/components/dfs/filesystems/jffs2/kernel/linux/string.h
deleted file mode 100644
index fc14ba607f..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/string.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __LINUX_STRING_H__
-#define __LINUX_STRING_H__
-
-#include <string.h>
-
-#endif /* __LINUX_STRING_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/timer.h b/components/dfs/filesystems/jffs2/kernel/linux/timer.h
deleted file mode 100644
index d6f91a68bc..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/timer.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef __LINUX_TIMER_H__
-#define __LINUX_TIMER_H__
-
-/* Not yet */
-
-#if defined (__GNUC__)    
-struct timer_list { } ;
-#elif defined (MSVC)
-struct timer_list {int no; } ;
-#else
-#error "please use a right C compiler"
-#endif
-
-#endif /* __LINUX_TIMER_H__ */
-
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/types.h b/components/dfs/filesystems/jffs2/kernel/linux/types.h
deleted file mode 100644
index bfa09c14c0..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/types.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef __LINUX_TYPES_H__
-#define __LINUX_TYPES_H__
-
-#include "cyg/infra/cyg_type.h"
-
-#define loff_t off_t
-
-#define kvec iovec
-#endif /* __LINUX_TYPES_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/version.h b/components/dfs/filesystems/jffs2/kernel/linux/version.h
deleted file mode 100644
index cd3a45aa38..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/version.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __LINUX_VERSION_H__
-#define __LINUX_VERSION_H__
-
-#include <rtthread.h>
-
-#endif /* __LINUX_VERSION_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/vmalloc.h b/components/dfs/filesystems/jffs2/kernel/linux/vmalloc.h
deleted file mode 100644
index 6f18ab2255..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/vmalloc.h
+++ /dev/null
@@ -1,3 +0,0 @@
-#ifndef __LINUX_VMALLOC_H__
-#define __LINUX_VMALLOC_H__
-#endif
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/wait.h b/components/dfs/filesystems/jffs2/kernel/linux/wait.h
deleted file mode 100644
index db3fd7a608..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/wait.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef __LINUX_WAIT_H__
-#define __LINUX_WAIT_H__
-
-
-#if defined (__GNUC__)    
-typedef struct { } wait_queue_head_t;
-#elif defined (MSVC)
-typedef struct {int no; } wait_queue_head_t;
-#else
-#error "please use a right C compiler"
-#endif
-
-#define init_waitqueue_head(wait) do{} while (0)
-#define add_wait_queue(wait,new_wait) do{} while (0)
-#define remove_wait_queue(wait,old_wait) do{} while (0)
-#define DECLARE_WAITQUEUE(wait,current) do{} while (0)
-
-static inline void wake_up(wait_queue_head_t *erase_wait)
-{ /* Only used for waking up threads blocks on erases. Not used in eCos */ }
-
-#endif /* __LINUX_WAIT_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/workqueue.h b/components/dfs/filesystems/jffs2/kernel/linux/workqueue.h
deleted file mode 100644
index 8b334d5593..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/workqueue.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef __LINUX_WORKQUEUE_H__
-#define __LINUX_WORKQUEUE_H__
-
-/* We don't do this yet */
-#if defined (__GNUC__)    
-struct work_struct { } ;
-#elif defined (MSVC)
-struct work_struct {int no; } ;
-#else
-#error "please use a right C compiler"
-#endif
-
-
-#define INIT_WORK(x,y,z) /* */
-#define schedule_work(x) do { } while(0)
-#define flush_scheduled_work() do { } while(0)
-
-#endif /* __LINUX_WORKQUEUE_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/zlib.h b/components/dfs/filesystems/jffs2/kernel/linux/zlib.h
deleted file mode 100644
index 4c32b68c9c..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/zlib.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef __LINUX_ZLIB_H__
-#define __LINUX_ZLIB_H__
-
-#include <cyg/compress/zlib.h>
-
-#define zlib_deflateInit(x,y) deflateInit(x,y)
-#define zlib_deflate(x,y) deflate(x,y)
-#define zlib_deflateEnd(x) deflateEnd(x)
-#define zlib_inflateInit(x) inflateInit(x)
-#define zlib_inflateInit2(x,y) inflateInit2(x,y)
-#define zlib_inflate(x,y) inflate(x,y)
-#define zlib_inflateEnd(x) inflateEnd(x)
-
-
-#endif /* __LINUX_ZLIB_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/zutil.h b/components/dfs/filesystems/jffs2/kernel/linux/zutil.h
deleted file mode 100644
index c3774baf9e..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/linux/zutil.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __LINUX_ZUTIL_H__
-#define __LINUX_ZUTIL_H__
-
-#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
-
-#endif /* __LINUX_ZUTIL_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/rbtree.c b/components/dfs/filesystems/jffs2/kernel/rbtree.c
deleted file mode 100644
index 5bc1cc53e2..0000000000
--- a/components/dfs/filesystems/jffs2/kernel/rbtree.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/*========================================================================
-//
-//      rbtree.c
-//
-//      Red Black tree implementation
-//
-//========================================================================
-// ####ECOSGPLCOPYRIGHTBEGIN####                                            
-// -------------------------------------------                              
-// This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
-//
-// eCos is free software; you can redistribute it and/or modify it under    
-// the terms of the GNU General Public License as published by the Free     
-// Software Foundation; either version 2 or (at your option) any later      
-// version.                                                                 
-//
-// eCos is distributed in the hope that it will be useful, but WITHOUT      
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
-// for more details.                                                        
-//
-// You should have received a copy of the GNU General Public License        
-// along with eCos; if not, write to the Free Software Foundation, Inc.,    
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
-//
-// As a special exception, if other files instantiate templates or use      
-// macros or inline functions from this file, or you compile this file      
-// and link it with other works to produce a work based on this file,       
-// this file does not by itself cause the resulting work to be covered by   
-// the GNU General Public License. However the source code for this file    
-// must still be made available in accordance with section (3) of the GNU   
-// General Public License v2.                                               
-//
-// This exception does not invalidate any other reasons why a work based    
-// on this file might be covered by the GNU General Public License.         
-// -------------------------------------------                              
-// ####ECOSGPLCOPYRIGHTEND####                                              
-//========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):     Niels Provos/OpenBSD
-// Contributors:  dwmw2
-// Date:          2003-01-21
-// Purpose:       This file provides an implementation of red-black trees.
-// Description:   Derived from OpenBSD src/sys/sys/tree.h
-// Usage:         
-//
-//####DESCRIPTIONEND####
-//
-//======================================================================
-*/
-
-/*	$OpenBSD: tree.h,v 1.7 2002/10/17 21:51:54 art Exp $	*/
-/*
- * Copyright 2002 Niels Provos <provos@citi.umich.edu>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/* Fields renamed to match Linux ones. */
-#include <linux/rbtree.h>
-
-
-#define RB_HEAD(head)		(head)->rb_node
-#define RB_LEFT(elm)		(elm)->rb_left
-#define RB_RIGHT(elm)		(elm)->rb_right
-#define RB_PARENT(elm)		(elm)->rb_parent
-#define RB_COLOR(elm)		(elm)->rb_color
-
-
-#define RB_SET(elm, parent) do {				\
-	RB_PARENT(elm) = parent;				\
-	RB_LEFT(elm) = RB_RIGHT(elm) = NULL;	\
-	RB_COLOR(elm) = RB_RED;				\
-} while (0)
-
-#define RB_SET_BLACKRED(black, red) do {			\
-	RB_COLOR(black) = RB_BLACK;				\
-	RB_COLOR(red) = RB_RED;					\
-} while (0)
-
-#ifndef RB_AUGMENT
-#define RB_AUGMENT(x)
-#endif
-
-#define RB_ROTATE_LEFT(head, elm, tmp) do {			\
-	(tmp) = RB_RIGHT(elm);					\
-	if ((RB_RIGHT(elm) = RB_LEFT(tmp))) {			\
-		RB_PARENT(RB_LEFT(tmp)) = (elm);		\
-	}							\
-	RB_AUGMENT(elm);					\
-	if ((RB_PARENT(tmp) = RB_PARENT(elm))) {		\
-		if ((elm) == RB_LEFT(RB_PARENT(elm)))		\
-			RB_LEFT(RB_PARENT(elm)) = (tmp);	\
-		else						\
-			RB_RIGHT(RB_PARENT(elm)) = (tmp);	\
-	} else							\
-		(head)->rb_node = (tmp);			\
-	RB_LEFT(tmp) = (elm);					\
-	RB_PARENT(elm) = (tmp);					\
-	RB_AUGMENT(tmp);					\
-	if ((RB_PARENT(tmp)))					\
-		RB_AUGMENT(RB_PARENT(tmp));			\
-} while (0)
-
-#define RB_ROTATE_RIGHT(head, elm, tmp) do {			\
-	(tmp) = RB_LEFT(elm);					\
-	if ((RB_LEFT(elm) = RB_RIGHT(tmp))) {			\
-		RB_PARENT(RB_RIGHT(tmp)) = (elm);		\
-	}							\
-	RB_AUGMENT(elm);					\
-	if ((RB_PARENT(tmp) = RB_PARENT(elm))) {		\
-		if ((elm) == RB_LEFT(RB_PARENT(elm)))		\
-			RB_LEFT(RB_PARENT(elm)) = (tmp);	\
-		else						\
-			RB_RIGHT(RB_PARENT(elm)) = (tmp);	\
-	} else							\
-		(head)->rb_node = (tmp);			\
-	RB_RIGHT(tmp) = (elm);					\
-	RB_PARENT(elm) = (tmp);					\
-	RB_AUGMENT(tmp);					\
-	if ((RB_PARENT(tmp)))					\
-		RB_AUGMENT(RB_PARENT(tmp));			\
-} while(0)
-
-/* Note args swapped to match Linux */
-void rb_insert_color(struct rb_node *elm, struct rb_root *head)
-{
-	struct rb_node *parent, *gparent, *tmp;
-	while ((parent = RB_PARENT(elm)) &&
-	    RB_COLOR(parent) == RB_RED) {
-		gparent = RB_PARENT(parent);
-		if (parent == RB_LEFT(gparent)) {
-			tmp = RB_RIGHT(gparent);
-			if (tmp && RB_COLOR(tmp) == RB_RED) {
-				RB_COLOR(tmp) = RB_BLACK;
-				RB_SET_BLACKRED(parent, gparent);
-				elm = gparent;
-				continue;
-			}
-			if (RB_RIGHT(parent) == elm) {
-				RB_ROTATE_LEFT(head, parent, tmp);
-				tmp = parent;
-				parent = elm;
-				elm = tmp;
-			}
-			RB_SET_BLACKRED(parent, gparent);
-			RB_ROTATE_RIGHT(head, gparent, tmp);
-		} else {
-			tmp = RB_LEFT(gparent);
-			if (tmp && RB_COLOR(tmp) == RB_RED) {
-				RB_COLOR(tmp) = RB_BLACK;
-				RB_SET_BLACKRED(parent, gparent);
-				elm = gparent;
-				continue;
-			}
-			if (RB_LEFT(parent) == elm) {
-				RB_ROTATE_RIGHT(head, parent, tmp);
-				tmp = parent;
-				parent = elm;
-				elm = tmp;
-			}
-			RB_SET_BLACKRED(parent, gparent);
-			RB_ROTATE_LEFT(head, gparent, tmp);
-		}
-	}
-	RB_COLOR(head->rb_node) = RB_BLACK;
-}
-
-
-static void rb_remove_color(struct rb_root *head, struct rb_node *parent,
-			    struct rb_node *elm)
-{
-	struct rb_node *tmp;
-	while ((elm == NULL || RB_COLOR(elm) == RB_BLACK) &&
-	    elm != RB_HEAD(head)) {
-		if (RB_LEFT(parent) == elm) {
-			tmp = RB_RIGHT(parent);
-			if (RB_COLOR(tmp) == RB_RED) {
-				RB_SET_BLACKRED(tmp, parent);
-				RB_ROTATE_LEFT(head, parent, tmp);
-				tmp = RB_RIGHT(parent);
-			}
-			if ((RB_LEFT(tmp) == NULL ||
-			    RB_COLOR(RB_LEFT(tmp)) == RB_BLACK) &&
-			    (RB_RIGHT(tmp) == NULL ||
-			    RB_COLOR(RB_RIGHT(tmp)) == RB_BLACK)) {
-				RB_COLOR(tmp) = RB_RED;
-				elm = parent;
-				parent = RB_PARENT(elm);
-			} else {
-				if (RB_RIGHT(tmp) == NULL ||
-				    RB_COLOR(RB_RIGHT(tmp)) == RB_BLACK) {
-					struct rb_node *oleft;
-					if ((oleft = RB_LEFT(tmp)))
-						RB_COLOR(oleft) = RB_BLACK;
-					RB_COLOR(tmp) = RB_RED;
-					RB_ROTATE_RIGHT(head, tmp, oleft);
-					tmp = RB_RIGHT(parent);
-				}
-				RB_COLOR(tmp) = RB_COLOR(parent);
-				RB_COLOR(parent) = RB_BLACK;
-				if (RB_RIGHT(tmp))
-					RB_COLOR(RB_RIGHT(tmp)) = RB_BLACK;
-				RB_ROTATE_LEFT(head, parent, tmp);
-				elm = RB_HEAD(head);
-				break;
-			}
-		} else {
-			tmp = RB_LEFT(parent);
-			if (RB_COLOR(tmp) == RB_RED) {
-				RB_SET_BLACKRED(tmp, parent);
-				RB_ROTATE_RIGHT(head, parent, tmp);
-				tmp = RB_LEFT(parent);
-			}
-			if ((RB_LEFT(tmp) == NULL ||
-			    RB_COLOR(RB_LEFT(tmp)) == RB_BLACK) &&
-			    (RB_RIGHT(tmp) == NULL ||
-			    RB_COLOR(RB_RIGHT(tmp)) == RB_BLACK)) {
-				RB_COLOR(tmp) = RB_RED;
-				elm = parent;
-				parent = RB_PARENT(elm);
-			} else {
-				if (RB_LEFT(tmp) == NULL ||
-				    RB_COLOR(RB_LEFT(tmp)) == RB_BLACK) {
-					struct rb_node *oright;
-					if ((oright = RB_RIGHT(tmp)))
-						RB_COLOR(oright) = RB_BLACK;
-					RB_COLOR(tmp) = RB_RED;
-					RB_ROTATE_LEFT(head, tmp, oright);
-					tmp = RB_LEFT(parent);
-				}
-				RB_COLOR(tmp) = RB_COLOR(parent);
-				RB_COLOR(parent) = RB_BLACK;
-				if (RB_LEFT(tmp))
-					RB_COLOR(RB_LEFT(tmp)) = RB_BLACK;
-				RB_ROTATE_RIGHT(head, parent, tmp);
-				elm = RB_HEAD(head);
-				break;
-			}
-		}
-	}
-	if (elm)
-		RB_COLOR(elm) = RB_BLACK;
-}
-
-/* Note name changed. Guess why :) */
-void rb_erase(struct rb_node *elm, struct rb_root *head)
-{
-	struct rb_node *child, *parent, *old = elm;
-	int color;
-	if (RB_LEFT(elm) == NULL)
-		child = RB_RIGHT(elm);
-	else if (RB_RIGHT(elm) == NULL)
-		child = RB_LEFT(elm);
-	else {
-		struct rb_node *left;
-		elm = RB_RIGHT(elm);
-		while ((left = RB_LEFT(elm)))
-			elm = left;
-		child = RB_RIGHT(elm);
-		parent = RB_PARENT(elm);
-		color = RB_COLOR(elm);
-		if (child)
-			RB_PARENT(child) = parent;
-		if (parent) {
-			if (RB_LEFT(parent) == elm)
-				RB_LEFT(parent) = child;
-			else
-				RB_RIGHT(parent) = child;
-			RB_AUGMENT(parent);
-		} else
-			RB_HEAD(head) = child;
-		if (RB_PARENT(elm) == old)
-			parent = elm;
-		*(elm) = *(old);
-		if (RB_PARENT(old)) {
-			if (RB_LEFT(RB_PARENT(old)) == old)
-				RB_LEFT(RB_PARENT(old)) = elm;
-			else
-				RB_RIGHT(RB_PARENT(old)) = elm;
-			RB_AUGMENT(RB_PARENT(old));
-		} else
-			RB_HEAD(head) = elm;
-		RB_PARENT(RB_LEFT(old)) = elm;
-		if (RB_RIGHT(old))
-			RB_PARENT(RB_RIGHT(old)) = elm;
-		if (parent) {
-			left = parent;
-			do {
-				RB_AUGMENT(left);
-			} while ((left = RB_PARENT(left)));
-		}
-		goto color;
-	}
-	parent = RB_PARENT(elm);
-	color = RB_COLOR(elm);
-	if (child)
-		RB_PARENT(child) = parent;
-	if (parent) {
-		if (RB_LEFT(parent) == elm)
-			RB_LEFT(parent) = child;
-		else
-			RB_RIGHT(parent) = child;
-		RB_AUGMENT(parent);
-	} else
-		RB_HEAD(head) = child;
-color:
-	if (color == RB_BLACK)
-		rb_remove_color(head, parent, child);
-}
-
-struct rb_node *rb_next(struct rb_node *elm)
-{
-	if (RB_RIGHT(elm)) {
-		elm = RB_RIGHT(elm);
-		while (RB_LEFT(elm))
-			elm = RB_LEFT(elm);
-	} else {
-		if (RB_PARENT(elm) &&
-		    (elm == RB_LEFT(RB_PARENT(elm))))
-			elm = RB_PARENT(elm);
-		else {
-			while (RB_PARENT(elm) &&
-			    (elm == RB_RIGHT(RB_PARENT(elm))))
-				elm = RB_PARENT(elm);
-			elm = RB_PARENT(elm);
-		}
-	}
-	return (elm);
-}
-
-struct rb_node *rb_prev(struct rb_node *elm)
-{
-	if (RB_LEFT(elm)) {
-		elm = RB_LEFT(elm);
-		while (RB_RIGHT(elm))
-			elm = RB_RIGHT(elm);
-	} else {
-		if (RB_PARENT(elm) &&
-		    (elm == RB_RIGHT(RB_PARENT(elm))))
-			elm = RB_PARENT(elm);
-		else {
-			while (RB_PARENT(elm) &&
-			    (elm == RB_LEFT(RB_PARENT(elm))))
-				elm = RB_PARENT(elm);
-			elm = RB_PARENT(elm);
-		}
-	}
-	return (elm);
-}
-
-/* These ones are lifted from Linux -- but that's OK because I
-   wrote them. dwmw2. */
-struct rb_node *rb_first(struct rb_root *root)
-{
-        struct rb_node  *n;
-
-        n = root->rb_node;
-        if (!n)
-                return 0;
-        while (n->rb_left)
-                n = n->rb_left;
-        return n;
-}
-
-void rb_replace_node(struct rb_node *victim, struct rb_node *new,
-                     struct rb_root *root)
-{
-        struct rb_node *parent = victim->rb_parent;
-
-        /* Set the surrounding nodes to point to the replacement */
-        if (parent) {
-                if (victim == parent->rb_left)
-                        parent->rb_left = new;
-                else
-                        parent->rb_right = new;
-        } else {
-                root->rb_node = new;
-        }
-        if (victim->rb_left)
-                victim->rb_left->rb_parent = new;
-        if (victim->rb_right)
-                victim->rb_right->rb_parent = new;
-
-        /* Copy the pointers/colour from the victim to the replacement */
-        *new = *victim;
-}
diff --git a/components/dfs/filesystems/jffs2/porting.c b/components/dfs/filesystems/jffs2/porting.c
deleted file mode 100644
index 81290bdc32..0000000000
--- a/components/dfs/filesystems/jffs2/porting.c
+++ /dev/null
@@ -1,29 +0,0 @@
-#include <linux/kernel.h>
-#include "nodelist.h"
-
-#include "porting.h"
-
-time_t jffs2_get_timestamp(void)
-{
-    return 0;
-}
-
-void jffs2_get_info_from_sb(void * data, struct jffs2_fs_info * info)
-{
-	struct jffs2_fs_info;
-	struct super_block *jffs2_sb;
-	struct jffs2_sb_info *c;
-
-	jffs2_sb = (struct super_block *)(data);
-	c = JFFS2_SB_INFO(jffs2_sb);
-	
-	info->sector_size = c->sector_size; 
-	info->nr_blocks = c->nr_blocks;
-	info->free_size = c->free_size + c->dirty_size; //fixme need test!	
-}
-
-int jffs2_porting_stat(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-		      void * stat_buf)
-{
-	return jffs2_fste.stat(mte, mte->root, name, (struct stat *)stat_buf);	
-}
diff --git a/components/dfs/filesystems/jffs2/porting.h b/components/dfs/filesystems/jffs2/porting.h
deleted file mode 100644
index 2671f46dde..0000000000
--- a/components/dfs/filesystems/jffs2/porting.h
+++ /dev/null
@@ -1,51 +0,0 @@
-#ifndef _PORTING_H 
-#define _PORTING_H
-
-#include "jffs2_config.h"
-/* the following should be same with os_sys_stat.h */
-#define JFFS2_S_IFMT	 0x000003FF
-#define JFFS2_S_IFDIR	 (1<<0)
-#define JFFS2_S_IFREG	 (1<<3)
-
-struct jffs2_fs_info
-{
-	unsigned sector_size; /* a erasing block size*/
-	unsigned nr_blocks; /* number of blocks in flash */
-	unsigned free_size;
-};
-
-struct jffs2_stat {
-    unsigned long   st_mode;     /* File mode */
-    unsigned int    st_ino;      /* File serial number */
-    unsigned int    st_dev;      /* ID of device containing file */
-    unsigned short  st_nlink;    /* Number of hard links */
-    unsigned short  st_uid;      /* User ID of the file owner */
-    unsigned short  st_gid;      /* Group ID of the file's group */
-    long  st_size;     /* File size (regular files only) */
-    long  st_atime;    /* Last access time */
-    long  st_mtime;    /* Last data modification time */
-    long  st_ctime;    /* Last file status change time */
-};
-
-struct jffs2_dirent
-{
-#ifdef CYGPKG_FILEIO_DIRENT_DTYPE
-
-	unsigned long  d_type; // Only supported with FATFS, RAMFS, ROMFS,
-	// and JFFS2.
-	// d_type is not part of POSIX so
-	// should be used with caution.
-#endif
-	char        d_name[JFFS2_NAME_MAX+1];
-};
-
-extern cyg_fileops jffs2_fileops;
-extern cyg_fileops jffs2_dirops;
-extern struct cyg_fstab_entry jffs2_fste;
-
-time_t jffs2_get_timestamp(void);
-void jffs2_get_info_from_sb(void * data, struct jffs2_fs_info * info);
-int jffs2_porting_stat(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-		      void * stat_buf);
-
-#endif
diff --git a/components/dfs/filesystems/jffs2/src/LICENCE b/components/dfs/filesystems/jffs2/src/LICENCE
deleted file mode 100644
index f3f9a6f6ec..0000000000
--- a/components/dfs/filesystems/jffs2/src/LICENCE
+++ /dev/null
@@ -1,35 +0,0 @@
-The files in this directory and elsewhere which refer to this LICENCE
-file are part of JFFS2, the Journalling Flash File System v2.
-
-	Copyright (C) 2001-2003 Red Hat, Inc.
-
-JFFS2 is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2 or (at your option) any later 
-version.
-
-JFFS2 is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with JFFS2; if not, write to the Free Software Foundation, Inc.,
-59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-
-As a special exception, if other files instantiate templates or use
-macros or inline functions from these files, or you compile these
-files and link them with other works to produce a work based on these
-files, these files do not by themselves cause the resulting work to be
-covered by the GNU General Public License. However the source code for
-these files must still be made available in accordance with section (3)
-of the GNU General Public License.
-
-This exception does not invalidate any other reasons why a work based on
-this file might be covered by the GNU General Public License.
-
-For information on obtaining alternative licences for JFFS2, see 
-http://sources.redhat.com/jffs2/jffs2-licence.html
-
-
-	$Id: LICENCE,v 1.2 2003/10/04 08:33:05 dwmw2 Exp $
diff --git a/components/dfs/filesystems/jffs2/src/build.c b/components/dfs/filesystems/jffs2/src/build.c
deleted file mode 100644
index 158b01a829..0000000000
--- a/components/dfs/filesystems/jffs2/src/build.c
+++ /dev/null
@@ -1,371 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: build.c,v 1.75 2005/07/22 10:32:07 dedekind Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/mtd/mtd.h>
-#include "nodelist.h"
-
-static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *, struct jffs2_inode_cache *, struct jffs2_full_dirent **);
-
-static inline struct jffs2_inode_cache *
-first_inode_chain(int *i, struct jffs2_sb_info *c)
-{
-	for (; *i < INOCACHE_HASHSIZE; (*i)++) {
-		if (c->inocache_list[*i])
-			return c->inocache_list[*i];
-	}
-	return NULL;
-}
-
-static inline struct jffs2_inode_cache *
-next_inode(int *i, struct jffs2_inode_cache *ic, struct jffs2_sb_info *c)
-{
-	/* More in this chain? */
-	if (ic->next)
-		return ic->next;
-	(*i)++;
-	return first_inode_chain(i, c);
-}
-
-#define for_each_inode(i, c, ic)			\
-	for (i = 0, ic = first_inode_chain(&i, (c));	\
-	     ic;					\
-	     ic = next_inode(&i, ic, (c)))
-
-
-static inline void jffs2_build_inode_pass1(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
-{
-	struct jffs2_full_dirent *fd;
-
-	D1(printk(KERN_DEBUG "jffs2_build_inode building directory inode #%u\n", ic->ino));
-
-	/* For each child, increase nlink */
-	for(fd = ic->scan_dents; fd; fd = fd->next) {
-		struct jffs2_inode_cache *child_ic;
-		if (!fd->ino)
-			continue;
-
-		/* XXX: Can get high latency here with huge directories */
-
-		child_ic = jffs2_get_ino_cache(c, fd->ino);
-		if (!child_ic) {
-			printk(KERN_NOTICE "Eep. Child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
-				  fd->name, fd->ino, ic->ino);
-			jffs2_mark_node_obsolete(c, fd->raw);
-			continue;
-		}
-
-		if (child_ic->nlink++ && fd->type == DT_DIR) {
-			printk(KERN_NOTICE "Child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n", fd->name, fd->ino, ic->ino);
-			if (fd->ino == 1 && ic->ino == 1) {
-				printk(KERN_NOTICE "This is mostly harmless, and probably caused by creating a JFFS2 image\n");
-				printk(KERN_NOTICE "using a buggy version of mkfs.jffs2. Use at least v1.17.\n");
-			}
-			/* What do we do about it? */
-		}
-		D1(printk(KERN_DEBUG "Increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino));
-		/* Can't free them. We might need them in pass 2 */
-	}
-}
-
-/* Scan plan:
- - Scan physical nodes. Build map of inodes/dirents. Allocate inocaches as we go
- - Scan directory tree from top down, setting nlink in inocaches
- - Scan inocaches for inodes with nlink==0
-*/
-static int jffs2_build_filesystem(struct jffs2_sb_info *c)
-{
-	int ret;
-	int i;
-	struct jffs2_inode_cache *ic;
-	struct jffs2_full_dirent *fd;
-	struct jffs2_full_dirent *dead_fds = NULL;
-
-	/* First, scan the medium and build all the inode caches with
-	   lists of physical nodes */
-
-	c->flags |= JFFS2_SB_FLAG_SCANNING;
-	ret = jffs2_scan_medium(c);
-	c->flags &= ~JFFS2_SB_FLAG_SCANNING;
-	if (ret)
-		goto exit;
-
-	D1(printk(KERN_DEBUG "Scanned flash completely\n"));
-	jffs2_dbg_dump_block_lists_nolock(c);
-
-	c->flags |= JFFS2_SB_FLAG_BUILDING;
-	/* Now scan the directory tree, increasing nlink according to every dirent found. */
-	for_each_inode(i, c, ic) {
-		D1(printk(KERN_DEBUG "Pass 1: ino #%u\n", ic->ino));
-
-		D1(BUG_ON(ic->ino > c->highest_ino));
-
-		if (ic->scan_dents) {
-			jffs2_build_inode_pass1(c, ic);
-			cond_resched();
-		}
-	}
-
-	D1(printk(KERN_DEBUG "Pass 1 complete\n"));
-
-	/* Next, scan for inodes with nlink == 0 and remove them. If
-	   they were directories, then decrement the nlink of their
-	   children too, and repeat the scan. As that's going to be
-	   a fairly uncommon occurrence, it's not so evil to do it this
-	   way. Recursion bad. */
-	D1(printk(KERN_DEBUG "Pass 2 starting\n"));
-
-	for_each_inode(i, c, ic) {
-		D1(printk(KERN_DEBUG "Pass 2: ino #%u, nlink %d, ic %p, nodes %p\n", ic->ino, ic->nlink, ic, ic->nodes));
-		if (ic->nlink)
-			continue;
-
-		jffs2_build_remove_unlinked_inode(c, ic, &dead_fds);
-		cond_resched();
-	}
-
-	D1(printk(KERN_DEBUG "Pass 2a starting\n"));
-
-	while (dead_fds) {
-		fd = dead_fds;
-		dead_fds = fd->next;
-
-		ic = jffs2_get_ino_cache(c, fd->ino);
-		D1(printk(KERN_DEBUG "Removing dead_fd ino #%u (\"%s\"), ic at %p\n", fd->ino, fd->name, ic));
-
-		if (ic)
-			jffs2_build_remove_unlinked_inode(c, ic, &dead_fds);
-		jffs2_free_full_dirent(fd);
-	}
-
-	D1(printk(KERN_DEBUG "Pass 2 complete\n"));
-
-	/* Finally, we can scan again and free the dirent structs */
-	for_each_inode(i, c, ic) {
-		D1(printk(KERN_DEBUG "Pass 3: ino #%u, ic %p, nodes %p\n", ic->ino, ic, ic->nodes));
-
-		while(ic->scan_dents) {
-			fd = ic->scan_dents;
-			ic->scan_dents = fd->next;
-			jffs2_free_full_dirent(fd);
-		}
-		ic->scan_dents = NULL;
-		cond_resched();
-	}
-	c->flags &= ~JFFS2_SB_FLAG_BUILDING;
-
-	D1(printk(KERN_DEBUG "Pass 3 complete\n"));
-	jffs2_dbg_dump_block_lists_nolock(c);
-
-	/* Rotate the lists by some number to ensure wear levelling */
-	jffs2_rotate_lists(c);
-
-	ret = 0;
-
-exit:
-	if (ret) {
-		for_each_inode(i, c, ic) {
-			while(ic->scan_dents) {
-				fd = ic->scan_dents;
-				ic->scan_dents = fd->next;
-				jffs2_free_full_dirent(fd);
-			}
-		}
-	}
-
-	return ret;
-}
-
-static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, struct jffs2_full_dirent **dead_fds)
-{
-	struct jffs2_raw_node_ref *raw;
-	struct jffs2_full_dirent *fd;
-
-	D1(printk(KERN_DEBUG "JFFS2: Removing ino #%u with nlink == zero.\n", ic->ino));
-
-	raw = ic->nodes;
-	while (raw != (void *)ic) {
-		struct jffs2_raw_node_ref *next = raw->next_in_ino;
-		D1(printk(KERN_DEBUG "obsoleting node at 0x%08x\n", ref_offset(raw)));
-		jffs2_mark_node_obsolete(c, raw);
-		raw = next;
-	}
-
-	if (ic->scan_dents) {
-		int whinged = 0;
-		D1(printk(KERN_DEBUG "Inode #%u was a directory which may have children...\n", ic->ino));
-
-		while(ic->scan_dents) {
-			struct jffs2_inode_cache *child_ic;
-
-			fd = ic->scan_dents;
-			ic->scan_dents = fd->next;
-
-			if (!fd->ino) {
-				/* It's a deletion dirent. Ignore it */
-				D1(printk(KERN_DEBUG "Child \"%s\" is a deletion dirent, skipping...\n", fd->name));
-				jffs2_free_full_dirent(fd);
-				continue;
-			}
-			if (!whinged) {
-				whinged = 1;
-				printk(KERN_NOTICE "Inode #%u was a directory with children - removing those too...\n", ic->ino);
-			}
-
-			D1(printk(KERN_DEBUG "Removing child \"%s\", ino #%u\n",
-				  fd->name, fd->ino));
-
-			child_ic = jffs2_get_ino_cache(c, fd->ino);
-			if (!child_ic) {
-				printk(KERN_NOTICE "Cannot remove child \"%s\", ino #%u, because it doesn't exist\n", fd->name, fd->ino);
-				jffs2_free_full_dirent(fd);
-				continue;
-			}
-
-			/* Reduce nlink of the child. If it's now zero, stick it on the
-			   dead_fds list to be cleaned up later. Else just free the fd */
-
-			child_ic->nlink--;
-
-			if (!child_ic->nlink) {
-				D1(printk(KERN_DEBUG "Inode #%u (\"%s\") has now got zero nlink. Adding to dead_fds list.\n",
-					  fd->ino, fd->name));
-				fd->next = *dead_fds;
-				*dead_fds = fd;
-			} else {
-				D1(printk(KERN_DEBUG "Inode #%u (\"%s\") has now got nlink %d. Ignoring.\n",
-					  fd->ino, fd->name, child_ic->nlink));
-				jffs2_free_full_dirent(fd);
-			}
-		}
-	}
-
-	/*
-	   We don't delete the inocache from the hash list and free it yet.
-	   The erase code will do that, when all the nodes are completely gone.
-	*/
-}
-
-static void jffs2_calc_trigger_levels(struct jffs2_sb_info *c)
-{
-	uint32_t size;
-
-	/* Deletion should almost _always_ be allowed. We're fairly
-	   buggered once we stop allowing people to delete stuff
-	   because there's not enough free space... */
-	c->resv_blocks_deletion = 2;
-
-	/* Be conservative about how much space we need before we allow writes.
-	   On top of that which is required for deletia, require an extra 2%
-	   of the medium to be available, for overhead caused by nodes being
-	   split across blocks, etc. */
-
-	size = c->flash_size / 50; /* 2% of flash size */
-	size += c->nr_blocks * 100; /* And 100 bytes per eraseblock */
-	size += c->sector_size - 1; /* ... and round up */
-
-	c->resv_blocks_write = c->resv_blocks_deletion + (size / c->sector_size);
-
-	/* When do we let the GC thread run in the background */
-
-	c->resv_blocks_gctrigger = c->resv_blocks_write + 1;
-
-	/* When do we allow garbage collection to merge nodes to make
-	   long-term progress at the expense of short-term space exhaustion? */
-	c->resv_blocks_gcmerge = c->resv_blocks_deletion + 1;
-
-	/* When do we allow garbage collection to eat from bad blocks rather
-	   than actually making progress? */
-	c->resv_blocks_gcbad = 0;//c->resv_blocks_deletion + 2;
-
-	/* If there's less than this amount of dirty space, don't bother
-	   trying to GC to make more space. It'll be a fruitless task */
-	c->nospc_dirty_size = c->sector_size + (c->flash_size / 100);
-
-	D1(printk(KERN_DEBUG "JFFS2 trigger levels (size %d KiB, block size %d KiB, %d blocks)\n",
-		  c->flash_size / 1024, c->sector_size / 1024, c->nr_blocks));
-	D1(printk(KERN_DEBUG "Blocks required to allow deletion:    %d (%d KiB)\n",
-		  c->resv_blocks_deletion, c->resv_blocks_deletion*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Blocks required to allow writes:      %d (%d KiB)\n",
-		  c->resv_blocks_write, c->resv_blocks_write*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Blocks required to quiesce GC thread: %d (%d KiB)\n",
-		  c->resv_blocks_gctrigger, c->resv_blocks_gctrigger*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Blocks required to allow GC merges:   %d (%d KiB)\n",
-		  c->resv_blocks_gcmerge, c->resv_blocks_gcmerge*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Blocks required to GC bad blocks:     %d (%d KiB)\n",
-		  c->resv_blocks_gcbad, c->resv_blocks_gcbad*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Amount of dirty space required to GC: %d bytes\n",
-		  c->nospc_dirty_size));
-}
-
-int jffs2_do_mount_fs(struct jffs2_sb_info *c)
-{
-	int i;
-
-	c->free_size = c->flash_size;
-	c->nr_blocks = c->flash_size / c->sector_size;
-#ifndef __ECOS
- 	if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
-		c->blocks = vmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks);
-	else
-#endif
-		c->blocks = kmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks, GFP_KERNEL);
-	if (!c->blocks)
-		return -ENOMEM;
-	for (i=0; i<c->nr_blocks; i++) {
-		INIT_LIST_HEAD(&c->blocks[i].list);
-		c->blocks[i].offset = i * c->sector_size;
-		c->blocks[i].free_size = c->sector_size;
-		c->blocks[i].dirty_size = 0;
-		c->blocks[i].wasted_size = 0;
-		c->blocks[i].unchecked_size = 0;
-		c->blocks[i].used_size = 0;
-		c->blocks[i].first_node = NULL;
-		c->blocks[i].last_node = NULL;
-		c->blocks[i].bad_count = 0;
-	}
-
-	INIT_LIST_HEAD(&c->clean_list);
-	INIT_LIST_HEAD(&c->very_dirty_list);
-	INIT_LIST_HEAD(&c->dirty_list);
-	INIT_LIST_HEAD(&c->erasable_list);
-	INIT_LIST_HEAD(&c->erasing_list);
-	INIT_LIST_HEAD(&c->erase_pending_list);
-	INIT_LIST_HEAD(&c->erasable_pending_wbuf_list);
-	INIT_LIST_HEAD(&c->erase_complete_list);
-	INIT_LIST_HEAD(&c->free_list);
-	INIT_LIST_HEAD(&c->bad_list);
-	INIT_LIST_HEAD(&c->bad_used_list);
-	c->highest_ino = 1;
-
-	if (jffs2_build_filesystem(c)) {
-		D1(printk(KERN_DEBUG "build_fs failed\n"));
-		jffs2_free_ino_caches(c);
-		jffs2_free_raw_node_refs(c);
-#ifndef __ECOS
-		if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
-                    vfree(c->blocks);
-		else
-#endif
-                    kfree(c->blocks);
-
-		return -EIO;
-	}
-
-	jffs2_calc_trigger_levels(c);
-
-	return 0;
-}
diff --git a/components/dfs/filesystems/jffs2/src/compr.c b/components/dfs/filesystems/jffs2/src/compr.c
deleted file mode 100644
index c9e54b97db..0000000000
--- a/components/dfs/filesystems/jffs2/src/compr.c
+++ /dev/null
@@ -1,457 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- * Created by Arjan van de Ven <arjanv@redhat.com>
- *
- * Copyright (C) 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
- *                    University of Szeged, Hungary
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: compr.c,v 1.45 2005/07/26 13:24:40 havasi Exp $
- *
- */
-
-#include "compr.h"
-
-static DEFINE_SPINLOCK(jffs2_compressor_list_lock);
-
-/* Available compressors are on this list */
-static LIST_HEAD(jffs2_compressor_list);
-
-/* Actual compression mode */
-static int jffs2_compression_mode = JFFS2_COMPR_MODE_PRIORITY;
-
-/* Statistics for blocks stored without compression */
-static uint32_t none_stat_compr_blocks=0,none_stat_decompr_blocks=0,none_stat_compr_size=0;
-
-/* jffs2_compress:
- * @data: Pointer to uncompressed data
- * @cdata: Pointer to returned pointer to buffer for compressed data
- * @datalen: On entry, holds the amount of data available for compression.
- *	On exit, expected to hold the amount of data actually compressed.
- * @cdatalen: On entry, holds the amount of space available for compressed
- *	data. On exit, expected to hold the actual size of the compressed
- *	data.
- *
- * Returns: Lower byte to be stored with data indicating compression type used.
- * Zero is used to show that the data could not be compressed - the 
- * compressed version was actually larger than the original.
- * Upper byte will be used later. (soon)
- *
- * If the cdata buffer isn't large enough to hold all the uncompressed data,
- * jffs2_compress should compress as much as will fit, and should set 
- * *datalen accordingly to show the amount of data which were compressed.
- */
-uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-			     unsigned char *data_in, unsigned char **cpage_out, 
-			     uint32_t *datalen, uint32_t *cdatalen)
-{
-	int ret = JFFS2_COMPR_NONE;
-        int compr_ret;
-        struct jffs2_compressor *this, *best=NULL;
-        unsigned char *output_buf = NULL, *tmp_buf;
-        uint32_t orig_slen, orig_dlen;
-        uint32_t best_slen=0, best_dlen=0;
-
-        switch (jffs2_compression_mode) {
-        case JFFS2_COMPR_MODE_NONE:
-                break;
-        case JFFS2_COMPR_MODE_PRIORITY:
-                output_buf = kmalloc(*cdatalen,GFP_KERNEL);
-                if (!output_buf) {
-                        printk(KERN_WARNING "JFFS2: No memory for compressor allocation. Compression failed.\n");
-                        goto out;
-                }
-                orig_slen = *datalen;
-                orig_dlen = *cdatalen;
-                spin_lock(&jffs2_compressor_list_lock);
-                list_for_each_entry(this, &jffs2_compressor_list, list) {
-                        /* Skip decompress-only backwards-compatibility and disabled modules */
-                        if ((!this->compress)||(this->disabled))
-                                continue;
-
-                        this->usecount++;
-                        spin_unlock(&jffs2_compressor_list_lock);
-                        *datalen  = orig_slen;
-                        *cdatalen = orig_dlen;
-                        compr_ret = this->compress(data_in, output_buf, datalen, cdatalen, NULL);
-                        spin_lock(&jffs2_compressor_list_lock);
-                        this->usecount--;
-                        if (!compr_ret) {
-                                ret = this->compr;
-                                this->stat_compr_blocks++;
-                                this->stat_compr_orig_size += *datalen;
-                                this->stat_compr_new_size  += *cdatalen;
-                                break;
-                        }
-                }
-                spin_unlock(&jffs2_compressor_list_lock);
-                if (ret == JFFS2_COMPR_NONE) kfree(output_buf);
-                break;
-        case JFFS2_COMPR_MODE_SIZE:
-                orig_slen = *datalen;
-                orig_dlen = *cdatalen;
-                spin_lock(&jffs2_compressor_list_lock);
-                list_for_each_entry(this, &jffs2_compressor_list, list) {
-                        /* Skip decompress-only backwards-compatibility and disabled modules */
-                        if ((!this->compress)||(this->disabled))
-                                continue;
-                        /* Allocating memory for output buffer if necessary */
-                        if ((this->compr_buf_size<orig_dlen)&&(this->compr_buf)) {
-                                spin_unlock(&jffs2_compressor_list_lock);
-                                kfree(this->compr_buf);
-                                spin_lock(&jffs2_compressor_list_lock);
-                                this->compr_buf_size=0;
-                                this->compr_buf=NULL;
-                        }
-                        if (!this->compr_buf) {
-                                spin_unlock(&jffs2_compressor_list_lock);
-                                tmp_buf = kmalloc(orig_dlen,GFP_KERNEL);
-                                spin_lock(&jffs2_compressor_list_lock);
-                                if (!tmp_buf) {
-                                        printk(KERN_WARNING "JFFS2: No memory for compressor allocation. (%d bytes)\n",orig_dlen);
-                                        continue;
-                                }
-                                else {
-                                        this->compr_buf = tmp_buf;
-                                        this->compr_buf_size = orig_dlen;
-                                }
-                        }
-                        this->usecount++;
-                        spin_unlock(&jffs2_compressor_list_lock);
-                        *datalen  = orig_slen;
-                        *cdatalen = orig_dlen;
-                        compr_ret = this->compress(data_in, this->compr_buf, datalen, cdatalen, NULL);
-                        spin_lock(&jffs2_compressor_list_lock);
-                        this->usecount--;
-                        if (!compr_ret) {
-                                if ((!best_dlen)||(best_dlen>*cdatalen)) {
-                                        best_dlen = *cdatalen;
-                                        best_slen = *datalen;
-                                        best = this;
-                                }
-                        }
-                }
-                if (best_dlen) {
-                        *cdatalen = best_dlen;
-                        *datalen  = best_slen;
-                        output_buf = best->compr_buf;
-                        best->compr_buf = NULL;
-                        best->compr_buf_size = 0;
-                        best->stat_compr_blocks++;
-                        best->stat_compr_orig_size += best_slen;
-                        best->stat_compr_new_size  += best_dlen;
-                        ret = best->compr;
-                }
-                spin_unlock(&jffs2_compressor_list_lock);
-                break;
-        default:
-                printk(KERN_ERR "JFFS2: unknow compression mode.\n");
-        }
- out:
-        if (ret == JFFS2_COMPR_NONE) {
-	        *cpage_out = data_in;
-	        *datalen = *cdatalen;
-                none_stat_compr_blocks++;
-                none_stat_compr_size += *datalen;
-        }
-        else {
-                *cpage_out = output_buf;
-        }
-	return ret;
-}
-
-int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-		     uint16_t comprtype, unsigned char *cdata_in, 
-		     unsigned char *data_out, uint32_t cdatalen, uint32_t datalen)
-{
-        struct jffs2_compressor *this;
-        int ret;
-
-	/* Older code had a bug where it would write non-zero 'usercompr'
-	   fields. Deal with it. */
-	if ((comprtype & 0xff) <= JFFS2_COMPR_ZLIB)
-		comprtype &= 0xff;
-
-	switch (comprtype & 0xff) {
-	case JFFS2_COMPR_NONE:
-		/* This should be special-cased elsewhere, but we might as well deal with it */
-		memcpy(data_out, cdata_in, datalen);
-                none_stat_decompr_blocks++;
-		break;
-	case JFFS2_COMPR_ZERO:
-		memset(data_out, 0, datalen);
-		break;
-	default:
-                spin_lock(&jffs2_compressor_list_lock);
-                list_for_each_entry(this, &jffs2_compressor_list, list) {
-                        if (comprtype == this->compr) {
-                                this->usecount++;
-                                spin_unlock(&jffs2_compressor_list_lock);
-                                ret = this->decompress(cdata_in, data_out, cdatalen, datalen, NULL);
-                                spin_lock(&jffs2_compressor_list_lock);
-                                if (ret) {
-                                        printk(KERN_WARNING "Decompressor \"%s\" returned %d\n", this->name, ret);
-                                }
-                                else {
-                                        this->stat_decompr_blocks++;
-                                }
-                                this->usecount--;
-                                spin_unlock(&jffs2_compressor_list_lock);
-                                return ret;
-                        }
-                }
-		printk(KERN_WARNING "JFFS2 compression type 0x%02x not available.\n", comprtype);
-                spin_unlock(&jffs2_compressor_list_lock);
-		return -EIO;
-	}
-	return 0;
-}
-
-int jffs2_register_compressor(struct jffs2_compressor *comp)
-{
-        struct jffs2_compressor *this;
-
-        if (!comp->name) {
-                printk(KERN_WARNING "NULL compressor name at registering JFFS2 compressor. Failed.\n");
-                return -1;
-        }
-        comp->compr_buf_size=0;
-        comp->compr_buf=NULL;
-        comp->usecount=0;
-        comp->stat_compr_orig_size=0;
-        comp->stat_compr_new_size=0;
-        comp->stat_compr_blocks=0;
-        comp->stat_decompr_blocks=0;
-        D1(printk(KERN_DEBUG "Registering JFFS2 compressor \"%s\"\n", comp->name));
-
-        spin_lock(&jffs2_compressor_list_lock);
-
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                if (this->priority < comp->priority) {
-                        list_add(&comp->list, this->list.prev);
-                        goto out;
-                }
-        }
-        list_add_tail(&comp->list, &jffs2_compressor_list);
-out:
-        D2(list_for_each_entry(this, &jffs2_compressor_list, list) {
-                printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority);
-        })
-
-        spin_unlock(&jffs2_compressor_list_lock);
-
-        return 0;
-}
-
-int jffs2_unregister_compressor(struct jffs2_compressor *comp)
-{
-        D2(struct jffs2_compressor *this;)
-
-        D1(printk(KERN_DEBUG "Unregistering JFFS2 compressor \"%s\"\n", comp->name));
-
-        spin_lock(&jffs2_compressor_list_lock);
-
-        if (comp->usecount) {
-                spin_unlock(&jffs2_compressor_list_lock);
-                printk(KERN_WARNING "JFFS2: Compressor modul is in use. Unregister failed.\n");
-                return -1;
-        }
-        list_del(&comp->list);
-
-        D2(list_for_each_entry(this, &jffs2_compressor_list, list) {
-                printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority);
-        })
-        spin_unlock(&jffs2_compressor_list_lock);
-        return 0;
-}
-
-#ifdef CONFIG_JFFS2_PROC
-
-#define JFFS2_STAT_BUF_SIZE 16000
-
-char *jffs2_list_compressors(void)
-{
-        struct jffs2_compressor *this;
-        char *buf, *act_buf;
-
-        act_buf = buf = kmalloc(JFFS2_STAT_BUF_SIZE,GFP_KERNEL);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                act_buf += sprintf(act_buf, "%10s priority:%d ", this->name, this->priority);
-                if ((this->disabled)||(!this->compress))
-                        act_buf += sprintf(act_buf,"disabled");
-                else
-                        act_buf += sprintf(act_buf,"enabled");
-                act_buf += sprintf(act_buf,"\n");
-        }
-        return buf;
-}
-
-char *jffs2_stats(void)
-{
-        struct jffs2_compressor *this;
-        char *buf, *act_buf;
-
-        act_buf = buf = kmalloc(JFFS2_STAT_BUF_SIZE,GFP_KERNEL);
-
-        act_buf += sprintf(act_buf,"JFFS2 compressor statistics:\n");
-        act_buf += sprintf(act_buf,"%10s   ","none");
-        act_buf += sprintf(act_buf,"compr: %d blocks (%d)  decompr: %d blocks\n", none_stat_compr_blocks, 
-                           none_stat_compr_size, none_stat_decompr_blocks);
-        spin_lock(&jffs2_compressor_list_lock);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                act_buf += sprintf(act_buf,"%10s ",this->name);
-                if ((this->disabled)||(!this->compress))
-                        act_buf += sprintf(act_buf,"- ");
-                else
-                        act_buf += sprintf(act_buf,"+ ");
-                act_buf += sprintf(act_buf,"compr: %d blocks (%d/%d)  decompr: %d blocks ", this->stat_compr_blocks, 
-                                   this->stat_compr_new_size, this->stat_compr_orig_size, 
-                                   this->stat_decompr_blocks);
-                act_buf += sprintf(act_buf,"\n");
-        }
-        spin_unlock(&jffs2_compressor_list_lock);
-
-        return buf;
-}
-
-char *jffs2_get_compression_mode_name(void) 
-{
-        switch (jffs2_compression_mode) {
-        case JFFS2_COMPR_MODE_NONE:
-                return "none";
-        case JFFS2_COMPR_MODE_PRIORITY:
-                return "priority";
-        case JFFS2_COMPR_MODE_SIZE:
-                return "size";
-        }
-        return "unkown";
-}
-
-int jffs2_set_compression_mode_name(const char *name) 
-{
-        if (!strcmp("none",name)) {
-                jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
-                return 0;
-        }
-        if (!strcmp("priority",name)) {
-                jffs2_compression_mode = JFFS2_COMPR_MODE_PRIORITY;
-                return 0;
-        }
-        if (!strcmp("size",name)) {
-                jffs2_compression_mode = JFFS2_COMPR_MODE_SIZE;
-                return 0;
-        }
-        return 1;
-}
-
-static int jffs2_compressor_Xable(const char *name, int disabled)
-{
-        struct jffs2_compressor *this;
-        spin_lock(&jffs2_compressor_list_lock);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                if (!strcmp(this->name, name)) {
-                        this->disabled = disabled;
-                        spin_unlock(&jffs2_compressor_list_lock);
-                        return 0;                        
-                }
-        }
-        spin_unlock(&jffs2_compressor_list_lock);
-        printk(KERN_WARNING "JFFS2: compressor %s not found.\n",name);
-        return 1;
-}
-
-int jffs2_enable_compressor_name(const char *name)
-{
-        return jffs2_compressor_Xable(name, 0);
-}
-
-int jffs2_disable_compressor_name(const char *name)
-{
-        return jffs2_compressor_Xable(name, 1);
-}
-
-int jffs2_set_compressor_priority(const char *name, int priority)
-{
-        struct jffs2_compressor *this,*comp;
-        spin_lock(&jffs2_compressor_list_lock);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                if (!strcmp(this->name, name)) {
-                        this->priority = priority;
-                        comp = this;
-                        goto reinsert;
-                }
-        }
-        spin_unlock(&jffs2_compressor_list_lock);
-        printk(KERN_WARNING "JFFS2: compressor %s not found.\n",name);        
-        return 1;
-reinsert:
-        /* list is sorted in the order of priority, so if
-           we change it we have to reinsert it into the
-           good place */
-        list_del(&comp->list);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                if (this->priority < comp->priority) {
-                        list_add(&comp->list, this->list.prev);
-                        spin_unlock(&jffs2_compressor_list_lock);
-                        return 0;
-                }
-        }
-        list_add_tail(&comp->list, &jffs2_compressor_list);
-        spin_unlock(&jffs2_compressor_list_lock);
-        return 0;
-}
-
-#endif
-
-void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig)
-{
-        if (orig != comprbuf)
-                kfree(comprbuf);
-}
-
-int jffs2_compressors_init(void) 
-{
-/* Registering compressors */
-#ifdef CONFIG_JFFS2_ZLIB
-        jffs2_zlib_init();
-#endif
-#ifdef CONFIG_JFFS2_RTIME
-        jffs2_rtime_init();
-#endif
-#ifdef CONFIG_JFFS2_RUBIN
-        jffs2_rubinmips_init();
-        jffs2_dynrubin_init();
-#endif
-/* Setting default compression mode */
-#ifdef CONFIG_JFFS2_CMODE_NONE
-        jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
-        D1(printk(KERN_INFO "JFFS2: default compression mode: none\n");)
-#else
-#ifdef CONFIG_JFFS2_CMODE_SIZE
-        jffs2_compression_mode = JFFS2_COMPR_MODE_SIZE;
-        D1(printk(KERN_INFO "JFFS2: default compression mode: size\n");)
-#else
-        D1(printk(KERN_INFO "JFFS2: default compression mode: priority\n");)
-#endif
-#endif
-        return 0;
-}
-
-int jffs2_compressors_exit(void) 
-{
-/* Unregistering compressors */
-#ifdef CONFIG_JFFS2_RUBIN
-        jffs2_dynrubin_exit();
-        jffs2_rubinmips_exit();
-#endif
-#ifdef CONFIG_JFFS2_RTIME
-        jffs2_rtime_exit();
-#endif
-#ifdef CONFIG_JFFS2_ZLIB
-        jffs2_zlib_exit();
-#endif
-        return 0;
-}
diff --git a/components/dfs/filesystems/jffs2/src/compr.h b/components/dfs/filesystems/jffs2/src/compr.h
deleted file mode 100644
index 9ec6e37d38..0000000000
--- a/components/dfs/filesystems/jffs2/src/compr.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
- *                    University of Szeged, Hungary
- *
- * For licensing information, see the file 'LICENCE' in the 
- * jffs2 directory.
- *
- * $Id: compr.h,v 1.8 2005/07/26 13:24:40 havasi Exp $
- *
- */
-
-#ifndef __JFFS2_COMPR_H__
-#define __JFFS2_COMPR_H__
-
-#include <linux/kernel.h>
-#include <linux/vmalloc.h>
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/jffs2.h>
-#include <linux/jffs2_fs_i.h>
-#include <linux/jffs2_fs_sb.h>
-#include "nodelist.h"
-
-#define JFFS2_RUBINMIPS_PRIORITY 10
-#define JFFS2_DYNRUBIN_PRIORITY  20
-#define JFFS2_LZARI_PRIORITY     30
-#define JFFS2_LZO_PRIORITY       40
-#define JFFS2_RTIME_PRIORITY     50
-#define JFFS2_ZLIB_PRIORITY      60
-
-#define JFFS2_RUBINMIPS_DISABLED /* RUBINs will be used only */
-#define JFFS2_DYNRUBIN_DISABLED  /*        for decompression */
-
-#define JFFS2_COMPR_MODE_NONE       0
-#define JFFS2_COMPR_MODE_PRIORITY   1
-#define JFFS2_COMPR_MODE_SIZE       2
-
-struct jffs2_compressor {
-        struct list_head list;
-        int priority;              /* used by prirority comr. mode */
-        char *name;
-        char compr;                /* JFFS2_COMPR_XXX */
-        int (*compress)(unsigned char *data_in, unsigned char *cpage_out,
-                        uint32_t *srclen, uint32_t *destlen, void *model);
-        int (*decompress)(unsigned char *cdata_in, unsigned char *data_out,
-                        uint32_t cdatalen, uint32_t datalen, void *model);
-        int usecount;
-        int disabled;              /* if seted the compressor won't compress */
-        unsigned char *compr_buf;  /* used by size compr. mode */
-        uint32_t compr_buf_size;   /* used by size compr. mode */
-        uint32_t stat_compr_orig_size;
-        uint32_t stat_compr_new_size;
-        uint32_t stat_compr_blocks;
-        uint32_t stat_decompr_blocks;
-};
-
-int jffs2_register_compressor(struct jffs2_compressor *comp);
-int jffs2_unregister_compressor(struct jffs2_compressor *comp);
-
-int jffs2_compressors_init(void);
-int jffs2_compressors_exit(void);
-
-uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-                             unsigned char *data_in, unsigned char **cpage_out,
-                             uint32_t *datalen, uint32_t *cdatalen);
-
-int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-                     uint16_t comprtype, unsigned char *cdata_in,
-                     unsigned char *data_out, uint32_t cdatalen, uint32_t datalen);
-
-void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig);
-
-#ifdef CONFIG_JFFS2_PROC
-int jffs2_enable_compressor_name(const char *name);
-int jffs2_disable_compressor_name(const char *name);
-int jffs2_set_compression_mode_name(const char *mode_name);
-char *jffs2_get_compression_mode_name(void);
-int jffs2_set_compressor_priority(const char *mode_name, int priority);
-char *jffs2_list_compressors(void);
-char *jffs2_stats(void);
-#endif
-
-/* Compressor modules */
-/* These functions will be called by jffs2_compressors_init/exit */
-
-#ifdef CONFIG_JFFS2_RUBIN
-int jffs2_rubinmips_init(void);
-void jffs2_rubinmips_exit(void);
-int jffs2_dynrubin_init(void);
-void jffs2_dynrubin_exit(void);
-#endif
-#ifdef CONFIG_JFFS2_RTIME
-int jffs2_rtime_init(void);
-void jffs2_rtime_exit(void);
-#endif
-#ifdef CONFIG_JFFS2_ZLIB
-int jffs2_zlib_init(void);
-void jffs2_zlib_exit(void);
-#endif
-
-#endif /* __JFFS2_COMPR_H__ */
diff --git a/components/dfs/filesystems/jffs2/src/compr_rtime.c b/components/dfs/filesystems/jffs2/src/compr_rtime.c
deleted file mode 100644
index c7f6b2914e..0000000000
--- a/components/dfs/filesystems/jffs2/src/compr_rtime.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by Arjan van de Ven <arjanv@redhat.com>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: compr_rtime.c,v 1.15 2005/03/17 20:23:06 gleixner Exp $
- *
- *
- * Very simple lz77-ish encoder.
- *
- * Theory of operation: Both encoder and decoder have a list of "last
- * occurrences" for every possible source-value; after sending the
- * first source-byte, the second byte indicated the "run" length of
- * matches
- *
- * The algorithm is intended to only send "whole bytes", no bit-messing.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/string.h> 
-#include <linux/jffs2.h> 
-#include "compr.h"
-
-/* _compress returns the compressed size, -1 if bigger */
-static int jffs2_rtime_compress(unsigned char *data_in,
-				unsigned char *cpage_out,
-				uint32_t *sourcelen, uint32_t *dstlen,
-				void *model)
-{
-	short positions[256];
-	int outpos = 0;
-	int pos=0;
-
-	memset(positions,0,sizeof(positions)); 
-	
-	while (pos < (*sourcelen) && outpos <= (*dstlen)-2) {
-		int backpos, runlen=0;
-		unsigned char value;
-		
-		value = data_in[pos];
-
-		cpage_out[outpos++] = data_in[pos++];
-		
-		backpos = positions[value];
-		positions[value]=pos;
-		
-		while ((backpos < pos) && (pos < (*sourcelen)) &&
-		       (data_in[pos]==data_in[backpos++]) && (runlen<255)) {
-			pos++;
-			runlen++;
-		}
-		cpage_out[outpos++] = runlen;
-	}
-
-	if (outpos >= pos) {
-		/* We failed */
-		return -1;
-	}
-	
-	/* Tell the caller how much we managed to compress, and how much space it took */
-	*sourcelen = pos;
-	*dstlen = outpos;
-	return 0;
-}		   
-
-
-static int jffs2_rtime_decompress(unsigned char *data_in,
-				  unsigned char *cpage_out,
-				  uint32_t srclen, uint32_t destlen,
-				  void *model)
-{
-	short positions[256];
-	int outpos = 0;
-	int pos=0;
-	
-	memset(positions,0,sizeof(positions)); 
-	
-	while (outpos<destlen) {
-		unsigned char value;
-		int backoffs;
-		int repeat;
-		
-		value = data_in[pos++];
-		cpage_out[outpos++] = value; /* first the verbatim copied byte */
-		repeat = data_in[pos++];
-		backoffs = positions[value];
-		
-		positions[value]=outpos;
-		if (repeat) {
-			if (backoffs + repeat >= outpos) {
-				while(repeat) {
-					cpage_out[outpos++] = cpage_out[backoffs++];
-					repeat--;
-				}
-			} else {
-				memcpy(&cpage_out[outpos],&cpage_out[backoffs],repeat);
-				outpos+=repeat;		
-			}
-		}
-	}
-        return 0;
-}		   
-
-#if defined (__GNUC__) 
-static struct jffs2_compressor jffs2_rtime_comp = {
-    .priority = JFFS2_RTIME_PRIORITY,
-    .name = "rtime",
-    .compr = JFFS2_COMPR_RTIME,
-    .compress = &jffs2_rtime_compress,
-    .decompress = &jffs2_rtime_decompress,
-#ifdef JFFS2_RTIME_DISABLED
-    .disabled = 1,
-#else
-    .disabled = 0,
-#endif
-};
-#elif defined (MSVC)
-static struct jffs2_compressor jffs2_rtime_comp = {
-	{NULL},
-    JFFS2_RTIME_PRIORITY,//.priority = 
-    "rtime",//.name = 
-    JFFS2_COMPR_RTIME,//.compr = 
-    &jffs2_rtime_compress,//.compress = 
-    &jffs2_rtime_decompress,//.decompress = 
-	0,
-#ifdef JFFS2_RTIME_DISABLED
-    1,//.disabled = 
-#else
-    0,//.disabled = 
-#endif
-	NULL,
-	0,
-	0,
-	0,
-	0,
-	0
-};
-#else
-#endif
-
-int jffs2_rtime_init(void)
-{
-    return jffs2_register_compressor(&jffs2_rtime_comp);
-}
-
-void jffs2_rtime_exit(void)
-{
-    jffs2_unregister_compressor(&jffs2_rtime_comp);
-}
diff --git a/components/dfs/filesystems/jffs2/src/compr_rubin.c b/components/dfs/filesystems/jffs2/src/compr_rubin.c
deleted file mode 100644
index e1030d6778..0000000000
--- a/components/dfs/filesystems/jffs2/src/compr_rubin.c
+++ /dev/null
@@ -1,427 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001, 2002 Red Hat, Inc.
- *
- * Created by Arjan van de Ven <arjanv@redhat.com>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: compr_rubin.c,v 1.21 2005/05/20 15:39:54 gleixner Exp $
- *
- */
-
- 
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/jffs2.h>
-#include "compr_rubin.h"
-#include "histo_mips.h"
-#include "compr.h"
-
-static void init_rubin(struct rubin_state *rs, int div, int *bits)
-{	
-	int c;
-
-	rs->q = 0;
-	rs->p = (long) (2 * UPPER_BIT_RUBIN);
-	rs->bit_number = (long) 0;
-	rs->bit_divider = div;
-	for (c=0; c<8; c++)
-		rs->bits[c] = bits[c];
-}
-
-
-static int encode(struct rubin_state *rs, long A, long B, int symbol)
-{
-
-	long i0, i1;
-	int ret;
-
-	while ((rs->q >= UPPER_BIT_RUBIN) || ((rs->p + rs->q) <= UPPER_BIT_RUBIN)) {
-		rs->bit_number++;
-		
-		ret = pushbit(&rs->pp, (rs->q & UPPER_BIT_RUBIN) ? 1 : 0, 0);
-		if (ret)
-			return ret;
-		rs->q &= LOWER_BITS_RUBIN;
-		rs->q <<= 1;
-		rs->p <<= 1;
-	}
-	i0 = A * rs->p / (A + B);
-	if (i0 <= 0) {
-		i0 = 1;
-	}
-	if (i0 >= rs->p) {
-		i0 = rs->p - 1;
-	}
-	i1 = rs->p - i0;
-
-	if (symbol == 0)
-		rs->p = i0;
-	else {
-		rs->p = i1;
-		rs->q += i0;
-	}
-	return 0;
-}
-
-
-static void end_rubin(struct rubin_state *rs)
-{				
-
-	int i;
-
-	for (i = 0; i < RUBIN_REG_SIZE; i++) {
-		pushbit(&rs->pp, (UPPER_BIT_RUBIN & rs->q) ? 1 : 0, 1);
-		rs->q &= LOWER_BITS_RUBIN;
-		rs->q <<= 1;
-	}
-}
-
-
-static void init_decode(struct rubin_state *rs, int div, int *bits)
-{
-	init_rubin(rs, div, bits);		
-
-	/* behalve lower */
-	rs->rec_q = 0;
-
-	for (rs->bit_number = 0; rs->bit_number++ < RUBIN_REG_SIZE; rs->rec_q = rs->rec_q * 2 + (long) (pullbit(&rs->pp)))
-		;
-}
-
-static void __do_decode(struct rubin_state *rs, unsigned long p, unsigned long q)
-{
-	register unsigned long lower_bits_rubin = LOWER_BITS_RUBIN;
-	unsigned long rec_q;
-	int c, bits = 0;
-
-	/*
-	 * First, work out how many bits we need from the input stream.
-	 * Note that we have already done the initial check on this
-	 * loop prior to calling this function.
-	 */
-	do {
-		bits++;
-		q &= lower_bits_rubin;
-		q <<= 1;
-		p <<= 1;
-	} while ((q >= UPPER_BIT_RUBIN) || ((p + q) <= UPPER_BIT_RUBIN));
-
-	rs->p = p;
-	rs->q = q;
-
-	rs->bit_number += bits;
-
-	/*
-	 * Now get the bits.  We really want this to be "get n bits".
-	 */
-	rec_q = rs->rec_q;
-	do {
-		c = pullbit(&rs->pp);
-		rec_q &= lower_bits_rubin;
-		rec_q <<= 1;
-		rec_q += c;
-	} while (--bits);
-	rs->rec_q = rec_q;
-}
-
-static int decode(struct rubin_state *rs, long A, long B)
-{
-	unsigned long p = rs->p, q = rs->q;
-	long i0, threshold;
-	int symbol;
-
-	if (q >= UPPER_BIT_RUBIN || ((p + q) <= UPPER_BIT_RUBIN))
-		__do_decode(rs, p, q);
-
-	i0 = A * rs->p / (A + B);
-	if (i0 <= 0) {
-		i0 = 1;
-	}
-	if (i0 >= rs->p) {
-		i0 = rs->p - 1;
-	}
-
-	threshold = rs->q + i0;
-	symbol = rs->rec_q >= threshold;
-	if (rs->rec_q >= threshold) {
-		rs->q += i0;
-		i0 = rs->p - i0;
-	}
-
-	rs->p = i0;
-
-	return symbol;
-}
-
-
-
-static int out_byte(struct rubin_state *rs, unsigned char byte)
-{
-	int i, ret;
-	struct rubin_state rs_copy;
-	rs_copy = *rs;
-
-	for (i=0;i<8;i++) {
-		ret = encode(rs, rs->bit_divider-rs->bits[i],rs->bits[i],byte&1);
-		if (ret) {
-			/* Failed. Restore old state */
-			*rs = rs_copy;
-			return ret;
-		}
-		byte=byte>>1;
-	}
-	return 0;
-}
-
-static int in_byte(struct rubin_state *rs)
-{
-	int i, result = 0, bit_divider = rs->bit_divider;
-
-	for (i = 0; i < 8; i++)
-		result |= decode(rs, bit_divider - rs->bits[i], rs->bits[i]) << i;
-
-	return result;
-}
-
-
-
-static int rubin_do_compress(int bit_divider, int *bits, unsigned char *data_in, 
-		      unsigned char *cpage_out, uint32_t *sourcelen, uint32_t *dstlen)
-	{
-	int outpos = 0;
-	int pos=0;
-	struct rubin_state rs;
-
-	init_pushpull(&rs.pp, (char *)cpage_out, *dstlen * 8, 0, 32);
-
-	init_rubin(&rs, bit_divider, bits);
-	
-	while (pos < (*sourcelen) && !out_byte(&rs, data_in[pos]))
-		pos++;
-	
-	end_rubin(&rs);
-
-	if (outpos > pos) {
-		/* We failed */
-		return -1;
-	}
-	
-	/* Tell the caller how much we managed to compress, 
-	 * and how much space it took */
-	
-	outpos = (pushedbits(&rs.pp)+7)/8;
-	
-	if (outpos >= pos)
-		return -1; /* We didn't actually compress */
-	*sourcelen = pos;
-	*dstlen = outpos;
-	return 0;
-}		   
-#if 0
-/* _compress returns the compressed size, -1 if bigger */
-int jffs2_rubinmips_compress(unsigned char *data_in, unsigned char *cpage_out, 
-		   uint32_t *sourcelen, uint32_t *dstlen, void *model)
-{
-	return rubin_do_compress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
-}
-#endif
-static int jffs2_dynrubin_compress(unsigned char *data_in,
-				   unsigned char *cpage_out,
-				   uint32_t *sourcelen, uint32_t *dstlen,
-				   void *model)
-{
-	int bits[8];
-	unsigned char histo[256];
-	int i;
-	int ret;
-	uint32_t mysrclen, mydstlen;
-
-	mysrclen = *sourcelen;
-	mydstlen = *dstlen - 8;
-
-	if (*dstlen <= 12)
-		return -1;
-
-	memset(histo, 0, 256);
-	for (i=0; i<mysrclen; i++) {
-		histo[data_in[i]]++;
-	}
-	memset(bits, 0, sizeof(int)*8);
-	for (i=0; i<256; i++) {
-		if (i&128)
-			bits[7] += histo[i];
-		if (i&64)
-			bits[6] += histo[i];
-		if (i&32)
-			bits[5] += histo[i];
-		if (i&16)
-			bits[4] += histo[i];
-		if (i&8)
-			bits[3] += histo[i];
-		if (i&4)
-			bits[2] += histo[i];
-		if (i&2)
-			bits[1] += histo[i];
-		if (i&1)
-			bits[0] += histo[i];
-	}
-
-	for (i=0; i<8; i++) {
-		bits[i] = (bits[i] * 256) / mysrclen;
-		if (!bits[i]) bits[i] = 1;
-		if (bits[i] > 255) bits[i] = 255;
-		cpage_out[i] = bits[i];
-	}
-
-	ret = rubin_do_compress(256, bits, data_in, cpage_out+8, &mysrclen, &mydstlen);
-	if (ret) 
-		return ret;
-
-	/* Add back the 8 bytes we took for the probabilities */
-	mydstlen += 8;
-
-	if (mysrclen <= mydstlen) {
-		/* We compressed */
-		return -1;
-	}
-
-	*sourcelen = mysrclen;
-	*dstlen = mydstlen;
-	return 0;
-}
-
-static void rubin_do_decompress(int bit_divider, int *bits, unsigned char *cdata_in, 
-			 unsigned char *page_out, uint32_t srclen, uint32_t destlen)
-{
-	int outpos = 0;
-	struct rubin_state rs;
-	
-	init_pushpull(&rs.pp, (char *)cdata_in, srclen, 0, 0);
-	init_decode(&rs, bit_divider, bits);
-	
-	while (outpos < destlen) {
-		page_out[outpos++] = in_byte(&rs);
-	}
-}		   
-
-
-static int jffs2_rubinmips_decompress(unsigned char *data_in,
-				      unsigned char *cpage_out,
-				      uint32_t sourcelen, uint32_t dstlen,
-				      void *model)
-{
-	rubin_do_decompress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
-        return 0;
-}
-
-static int jffs2_dynrubin_decompress(unsigned char *data_in,
-				     unsigned char *cpage_out,
-				     uint32_t sourcelen, uint32_t dstlen,
-				     void *model)
-{
-	int bits[8];
-	int c;
-
-	for (c=0; c<8; c++)
-		bits[c] = data_in[c];
-
-	rubin_do_decompress(256, bits, data_in+8, cpage_out, sourcelen-8, dstlen);
-        return 0;
-}
-
-#if defined (__GNUC__) 
-static struct jffs2_compressor jffs2_rubinmips_comp = {
-    .priority = JFFS2_RUBINMIPS_PRIORITY,
-    .name = "rubinmips",
-    .compr = JFFS2_COMPR_DYNRUBIN,
-    .compress = NULL, /*&jffs2_rubinmips_compress,*/
-    .decompress = &jffs2_rubinmips_decompress,
-#ifdef JFFS2_RUBINMIPS_DISABLED
-    .disabled = 1,
-#else
-    .disabled = 0,
-#endif
-};
-#elif defined (MSVC)
-static struct jffs2_compressor jffs2_rubinmips_comp = {
-	{NULL},
-    JFFS2_RUBINMIPS_PRIORITY,
-    "rubinmips",
-    JFFS2_COMPR_DYNRUBIN,
-    NULL, /*&jffs2_rubinmips_compress,*/
-     &jffs2_rubinmips_decompress,
-	 0,
-#ifdef JFFS2_RUBINMIPS_DISABLED
-     1,
-#else
-     0,
-#endif
-	 NULL,
-	 0,
-	 0,
-	 0,
-	 0,
-	 0
-};
-#else
-#endif
-
-int jffs2_rubinmips_init(void)
-{
-    return jffs2_register_compressor(&jffs2_rubinmips_comp);
-}
-
-void jffs2_rubinmips_exit(void)
-{
-    jffs2_unregister_compressor(&jffs2_rubinmips_comp);
-}
-
-#if defined (__GNUC__) 
-static struct jffs2_compressor jffs2_dynrubin_comp = {
-    .priority = JFFS2_DYNRUBIN_PRIORITY,
-    .name = "dynrubin",
-    .compr = JFFS2_COMPR_RUBINMIPS,
-    .compress = jffs2_dynrubin_compress,
-    .decompress = &jffs2_dynrubin_decompress,
-#ifdef JFFS2_DYNRUBIN_DISABLED
-    .disabled = 1,
-#else
-    .disabled = 0,
-#endif
-};
-#elif defined (MSVC)
-static struct jffs2_compressor jffs2_dynrubin_comp = {
-	{NULL},
-	JFFS2_DYNRUBIN_PRIORITY,
-	"dynrubin",
-	 JFFS2_COMPR_RUBINMIPS,
-	jffs2_dynrubin_compress,
-	 &jffs2_dynrubin_decompress,
-	 0, 
-#ifdef JFFS2_DYNRUBIN_DISABLED
-	 1,
-#else
-	 0,
-#endif
-	NULL,
-	0,
-	0,
-	0,
-	0,
-	0
-};
-#else
-#endif
-
-int jffs2_dynrubin_init(void)
-{
-    return jffs2_register_compressor(&jffs2_dynrubin_comp);
-}
-
-void jffs2_dynrubin_exit(void)
-{
-    jffs2_unregister_compressor(&jffs2_dynrubin_comp);
-}
diff --git a/components/dfs/filesystems/jffs2/src/compr_rubin.h b/components/dfs/filesystems/jffs2/src/compr_rubin.h
deleted file mode 100644
index cf51e34f65..0000000000
--- a/components/dfs/filesystems/jffs2/src/compr_rubin.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Rubin encoder/decoder header       */
-/* work started at   : aug   3, 1994  */
-/* last modification : aug  15, 1994  */
-/* $Id: compr_rubin.h,v 1.6 2002/01/25 01:49:26 dwmw2 Exp $ */
-
-#include "pushpull.h"
-
-#define RUBIN_REG_SIZE   16
-#define UPPER_BIT_RUBIN    (((long) 1)<<(RUBIN_REG_SIZE-1))
-#define LOWER_BITS_RUBIN   ((((long) 1)<<(RUBIN_REG_SIZE-1))-1)
-
-
-struct rubin_state {
-	unsigned long p;		
-	unsigned long q;	
-	unsigned long rec_q;
-	long bit_number;
-	struct pushpull pp;
-	int bit_divider;
-	int bits[8];
-};
diff --git a/components/dfs/filesystems/jffs2/src/compr_zlib.c b/components/dfs/filesystems/jffs2/src/compr_zlib.c
deleted file mode 100644
index 7fe18e088c..0000000000
--- a/components/dfs/filesystems/jffs2/src/compr_zlib.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: compr_zlib.c,v 1.31 2005/05/20 19:30:06 gleixner Exp $
- *
- */
-#include "jffs2_config.h"
-#if !defined(__KERNEL__) && !defined(__ECOS)
-#error "The userspace support got too messy and was removed. Update your mkfs.jffs2"
-#endif
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/zlib.h>
-#include <linux/zutil.h>
-#include "nodelist.h"
-#include "compr.h"
-
-	/* Plan: call deflate() with avail_in == *sourcelen, 
-		avail_out = *dstlen - 12 and flush == Z_FINISH. 
-		If it doesn't manage to finish,	call it again with
-		avail_in == 0 and avail_out set to the remaining 12
-		bytes for it to clean up. 
-	   Q: Is 12 bytes sufficient?
-	*/
-#define STREAM_END_SPACE 12
-
-static DECLARE_MUTEX(deflate_sem);
-static DECLARE_MUTEX(inflate_sem);
-static z_stream inf_strm, def_strm;
-
-#ifdef __KERNEL__ /* Linux-only */
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-
-static int __init alloc_workspaces(void)
-{
-	def_strm.workspace = vmalloc(zlib_deflate_workspacesize());
-	if (!def_strm.workspace) {
-		printk(KERN_WARNING "Failed to allocate %d bytes for deflate workspace\n", zlib_deflate_workspacesize());
-		return -ENOMEM;
-	}
-	D1(printk(KERN_DEBUG "Allocated %d bytes for deflate workspace\n", zlib_deflate_workspacesize()));
-	inf_strm.workspace = vmalloc(zlib_inflate_workspacesize());
-	if (!inf_strm.workspace) {
-		printk(KERN_WARNING "Failed to allocate %d bytes for inflate workspace\n", zlib_inflate_workspacesize());
-		vfree(def_strm.workspace);
-		return -ENOMEM;
-	}
-	D1(printk(KERN_DEBUG "Allocated %d bytes for inflate workspace\n", zlib_inflate_workspacesize()));
-	return 0;
-}
-
-static void free_workspaces(void)
-{
-	vfree(def_strm.workspace);
-	vfree(inf_strm.workspace);
-}
-#else
-#define alloc_workspaces() (0)
-#define free_workspaces() do { } while(0)
-#endif /* __KERNEL__ */
-
-static int jffs2_zlib_compress(unsigned char *data_in,
-			       unsigned char *cpage_out,
-			       uint32_t *sourcelen, uint32_t *dstlen,
-			       void *model)
-{
-	int ret;
-
-	if (*dstlen <= STREAM_END_SPACE)
-		return -1;
-
-	down(&deflate_sem);
-
-	if (Z_OK != zlib_deflateInit(&def_strm, 3)) {
-		printk(KERN_WARNING "deflateInit failed\n");
-		up(&deflate_sem);
-		return -1;
-	}
-
-	def_strm.next_in = data_in;
-	def_strm.total_in = 0;
-	
-	def_strm.next_out = cpage_out;
-	def_strm.total_out = 0;
-
-	while (def_strm.total_out < *dstlen - STREAM_END_SPACE && def_strm.total_in < *sourcelen) {
-		def_strm.avail_out = *dstlen - (def_strm.total_out + STREAM_END_SPACE);
-		def_strm.avail_in = min((unsigned)(*sourcelen-def_strm.total_in), def_strm.avail_out);
-		D1(printk(KERN_DEBUG "calling deflate with avail_in %d, avail_out %d\n",
-			  def_strm.avail_in, def_strm.avail_out));
-		ret = zlib_deflate(&def_strm, Z_PARTIAL_FLUSH);
-		D1(printk(KERN_DEBUG "deflate returned with avail_in %d, avail_out %d, total_in %ld, total_out %ld\n", 
-			  def_strm.avail_in, def_strm.avail_out, def_strm.total_in, def_strm.total_out));
-		if (ret != Z_OK) {
-			D1(printk(KERN_DEBUG "deflate in loop returned %d\n", ret));
-			zlib_deflateEnd(&def_strm);
-			up(&deflate_sem);
-			return -1;
-		}
-	}
-	def_strm.avail_out += STREAM_END_SPACE;
-	def_strm.avail_in = 0;
-	ret = zlib_deflate(&def_strm, Z_FINISH);
-	zlib_deflateEnd(&def_strm);
-
-	if (ret != Z_STREAM_END) {
-		D1(printk(KERN_DEBUG "final deflate returned %d\n", ret));
-		ret = -1;
-		goto out;
-	}
-
-	if (def_strm.total_out >= def_strm.total_in) {
-		D1(printk(KERN_DEBUG "zlib compressed %ld bytes into %ld; failing\n",
-			  def_strm.total_in, def_strm.total_out));
-		ret = -1;
-		goto out;
-	}
-
-	D1(printk(KERN_DEBUG "zlib compressed %ld bytes into %ld\n",
-		  def_strm.total_in, def_strm.total_out));
-
-	*dstlen = def_strm.total_out;
-	*sourcelen = def_strm.total_in;
-	ret = 0;
- out:
-	up(&deflate_sem);
-	return ret;
-}
-
-static int jffs2_zlib_decompress(unsigned char *data_in,
-				 unsigned char *cpage_out,
-				 uint32_t srclen, uint32_t destlen,
-				 void *model)
-{
-	int ret;
-	int wbits = MAX_WBITS;
-
-	down(&inflate_sem);
-
-	inf_strm.next_in = data_in;
-	inf_strm.avail_in = srclen;
-	inf_strm.total_in = 0;
-	
-	inf_strm.next_out = cpage_out;
-	inf_strm.avail_out = destlen;
-	inf_strm.total_out = 0;
-
-	/* If it's deflate, and it's got no preset dictionary, then
-	   we can tell zlib to skip the adler32 check. */
-	if (srclen > 2 && !(data_in[1] & PRESET_DICT) &&
-	    ((data_in[0] & 0x0f) == Z_DEFLATED) &&
-	    !(((data_in[0]<<8) + data_in[1]) % 31)) {
-
-		D2(printk(KERN_DEBUG "inflate skipping adler32\n"));
-		wbits = -((data_in[0] >> 4) + 8);
-		inf_strm.next_in += 2;
-		inf_strm.avail_in -= 2;
-	} else {
-		/* Let this remain D1 for now -- it should never happen */
-		D1(printk(KERN_DEBUG "inflate not skipping adler32\n"));
-	}
-
-
-	if (Z_OK != zlib_inflateInit2(&inf_strm, wbits)) {
-		printk(KERN_WARNING "inflateInit failed\n");
-		up(&inflate_sem);
-		return 1;
-	}
-
-	while((ret = zlib_inflate(&inf_strm, Z_FINISH)) == Z_OK)
-		;
-	if (ret != Z_STREAM_END) {
-		printk(KERN_NOTICE "inflate returned %d\n", ret);
-	}
-	zlib_inflateEnd(&inf_strm);
-	up(&inflate_sem);
-        return 0;
-}
-
-#if defined (__GNUC__) 
-static struct jffs2_compressor jffs2_zlib_comp = {
-    .priority = JFFS2_ZLIB_PRIORITY,
-    .name = "zlib",
-    .compr = JFFS2_COMPR_ZLIB,
-    .compress = &jffs2_zlib_compress,
-    .decompress = &jffs2_zlib_decompress,
-#ifdef JFFS2_ZLIB_DISABLED
-    .disabled = 1,
-#else
-    .disabled = 0,
-#endif
-};
-#elif defined (MSVC)
-static struct jffs2_compressor jffs2_zlib_comp = {
-	{NULL},
-	JFFS2_ZLIB_PRIORITY,//.priority = 
-	"zlib",//.name = 
-	JFFS2_COMPR_ZLIB,//.compr = 
-	 &jffs2_zlib_compress,//.compress =
-	&jffs2_zlib_decompress,//.decompress = 
-	0,
-#ifdef JFFS2_ZLIB_DISABLED
-	1,//.disabled = 
-#else
-	0,//.disabled = 
-#endif
-	NULL,
-	0,
-	0,
-	0,
-	0,
-	0
-};
-#else
-#endif
-
-int __init jffs2_zlib_init(void)
-{
-    int ret;
-
-    ret = alloc_workspaces();
-    if (ret)
-        return ret;
-
-    ret = jffs2_register_compressor(&jffs2_zlib_comp);
-    if (ret)
-        free_workspaces();
-
-    return ret;
-}
-
-void jffs2_zlib_exit(void)
-{
-    jffs2_unregister_compressor(&jffs2_zlib_comp);
-    free_workspaces();
-}
diff --git a/components/dfs/filesystems/jffs2/src/debug.c b/components/dfs/filesystems/jffs2/src/debug.c
deleted file mode 100644
index 3a7c5ea6fc..0000000000
--- a/components/dfs/filesystems/jffs2/src/debug.c
+++ /dev/null
@@ -1,711 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: debug.c,v 1.1 2005/07/30 15:30:42 asl Exp $
- *
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/pagemap.h>
-#include <linux/crc32.h>
-#include <linux/jffs2.h>
-#include <linux/slab.h>
-#include "nodelist.h"
-#include "debug.h"
-
-#ifdef JFFS2_DBG_PARANOIA_CHECKS
-/*
- * Check the fragtree.
- */
-void
-__jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f)
-{
-	down(&f->sem);
-	__jffs2_dbg_fragtree_paranoia_check_nolock(f);
-	up(&f->sem);
-}
-	
-void
-__jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f)
-{
-	struct jffs2_node_frag *frag;
-	int bitched = 0;
-
-	for (frag = frag_first(&f->fragtree); frag; frag = frag_next(frag)) {
-		struct jffs2_full_dnode *fn = frag->node;
-
-		if (!fn || !fn->raw)
-			continue;
-
-		if (ref_flags(fn->raw) == REF_PRISTINE) {
-			if (fn->frags > 1) {
-				JFFS2_ERROR("REF_PRISTINE node at 0x%08x had %d frags. Tell dwmw2.\n",
-						ref_offset(fn->raw), fn->frags);
-				bitched = 1;
-			}
-
-			/* A hole node which isn't multi-page should be garbage-collected
-			   and merged anyway, so we just check for the frag size here,
-			   rather than mucking around with actually reading the node
-			   and checking the compression type, which is the real way
-			   to tell a hole node. */
-			if (frag->ofs & (PAGE_CACHE_SIZE-1) && frag_prev(frag)
-					&& frag_prev(frag)->size < PAGE_CACHE_SIZE && frag_prev(frag)->node) {
-				JFFS2_ERROR("REF_PRISTINE node at 0x%08x had a previous non-hole frag "
-						"in the same page. Tell dwmw2.\n", ref_offset(fn->raw));
-				bitched = 1;
-			}
-
-			if ((frag->ofs+frag->size) & (PAGE_CACHE_SIZE-1) && frag_next(frag)
-					&& frag_next(frag)->size < PAGE_CACHE_SIZE && frag_next(frag)->node) {
-				JFFS2_ERROR("REF_PRISTINE node at 0x%08x (%08x-%08x) had a following "
-						"non-hole frag in the same page. Tell dwmw2.\n",
-					       ref_offset(fn->raw), frag->ofs, frag->ofs+frag->size);
-				bitched = 1;
-			}
-		}
-	}
-
-	if (bitched) {
-		JFFS2_ERROR("fragtree is corrupted.\n");
-		__jffs2_dbg_dump_fragtree_nolock(f);
-		BUG();
-	}
-}
-
-/*
- * Check if the flash contains all 0xFF before we start writing.
- */
-void
-__jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
-				    uint32_t ofs, int len)
-{
-	size_t retlen;
-	int ret, i;
-	unsigned char *buf;
-
-	buf = kmalloc(len, GFP_KERNEL);
-	if (!buf)
-		return;
-
-	ret = jffs2_flash_read(c, ofs, len, &retlen, buf);
-	if (ret || (retlen != len)) {
-		JFFS2_WARNING("read %d bytes failed or short. ret %d, retlen %zd.\n",
-				len, ret, retlen);
-		kfree(buf);
-		return;
-	}
-
-	ret = 0;
-	for (i = 0; i < len; i++)
-		if (buf[i] != 0xff)
-			ret = 1;
-
-	if (ret) {
-		JFFS2_ERROR("argh, about to write node to %#08x on flash, but there are data "
-			"already there. The first corrupted byte is at %#08x offset.\n", ofs, ofs + i);
-		__jffs2_dbg_dump_buffer(buf, len, ofs);
-		kfree(buf);
-		BUG();
-	}
-
-	kfree(buf);
-}
-
-/*
- * Check the space accounting and node_ref list correctness for the JFFS2 erasable block 'jeb'.
- */
-void
-__jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
-				struct jffs2_eraseblock *jeb)
-{
-	spin_lock(&c->erase_completion_lock);
-	__jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
-	spin_unlock(&c->erase_completion_lock);
-}
-	
-void
-__jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
-				       struct jffs2_eraseblock *jeb)
-{
-	uint32_t my_used_size = 0;
-	uint32_t my_unchecked_size = 0;
-	uint32_t my_dirty_size = 0;
-	struct jffs2_raw_node_ref *ref2 = jeb->first_node;
-
-	while (ref2) {
-		uint32_t totlen = ref_totlen(c, jeb, ref2);
-
-		if (ref2->flash_offset < jeb->offset ||
-				ref2->flash_offset > jeb->offset + c->sector_size) {
-			JFFS2_ERROR("node_ref %#08x shouldn't be in block at %#08x.\n",
-				ref_offset(ref2), jeb->offset);
-			goto error;
-
-		}
-		if (ref_flags(ref2) == REF_UNCHECKED)
-			my_unchecked_size += totlen;
-		else if (!ref_obsolete(ref2))
-			my_used_size += totlen;
-		else
-			my_dirty_size += totlen;
-
-		if ((!ref2->next_phys) != (ref2 == jeb->last_node)) {
-			JFFS2_ERROR("node_ref for node at %#08x (mem %p) has next_phys at %#08x (mem %p), "
-				"last_node is at %#08x (mem %p).\n",
-				ref_offset(ref2), ref2, ref_offset(ref2->next_phys), ref2->next_phys,
-				ref_offset(jeb->last_node), jeb->last_node);
-			goto error;
-		}
-		ref2 = ref2->next_phys;
-	}
-
-	if (my_used_size != jeb->used_size) {
-		JFFS2_ERROR("Calculated used size %#08x != stored used size %#08x.\n",
-			my_used_size, jeb->used_size);
-		goto error;
-	}
-
-	if (my_unchecked_size != jeb->unchecked_size) {
-		JFFS2_ERROR("Calculated unchecked size %#08x != stored unchecked size %#08x.\n",
-			my_unchecked_size, jeb->unchecked_size);
-		goto error;
-	}
-
-#if 0
-	/* This should work when we implement ref->__totlen elemination */
-	if (my_dirty_size != jeb->dirty_size + jeb->wasted_size) {
-		JFFS2_ERROR("Calculated dirty+wasted size %#08x != stored dirty + wasted size %#08x\n",
-			my_dirty_size, jeb->dirty_size + jeb->wasted_size);
-		goto error;
-	}
-
-	if (jeb->free_size == 0
-		&& my_used_size + my_unchecked_size + my_dirty_size != c->sector_size) {
-		JFFS2_ERROR("The sum of all nodes in block (%#x) != size of block (%#x)\n",
-			my_used_size + my_unchecked_size + my_dirty_size,
-			c->sector_size);
-		goto error;
-	}
-#endif
-
-	return;
-
-error:
-	__jffs2_dbg_dump_node_refs_nolock(c, jeb);
-	__jffs2_dbg_dump_jeb_nolock(jeb);
-	__jffs2_dbg_dump_block_lists_nolock(c);
-	BUG();
-	
-}
-#endif /* JFFS2_DBG_PARANOIA_CHECKS */
-
-#if defined(JFFS2_DBG_DUMPS) || defined(JFFS2_DBG_PARANOIA_CHECKS)
-/*
- * Dump the node_refs of the 'jeb' JFFS2 eraseblock.
- */
-void
-__jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c,
-			   struct jffs2_eraseblock *jeb)
-{
-	spin_lock(&c->erase_completion_lock);
-	__jffs2_dbg_dump_node_refs_nolock(c, jeb);
-	spin_unlock(&c->erase_completion_lock);
-}
-
-void
-__jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c,
-				  struct jffs2_eraseblock *jeb)
-{
-	struct jffs2_raw_node_ref *ref;
-	int i = 0;
-
-	JFFS2_DEBUG("Dump node_refs of the eraseblock %#08x\n", jeb->offset);
-	if (!jeb->first_node) {
-		JFFS2_DEBUG("no nodes in the eraseblock %#08x\n", jeb->offset);
-		return;
-	}
-
-	printk(JFFS2_DBG_LVL);
-	for (ref = jeb->first_node; ; ref = ref->next_phys) {
-		printk("%#08x(%#x)", ref_offset(ref), ref->__totlen);
-		if (ref->next_phys)
-			printk("->");
-		else
-			break;
-		if (++i == 4) {
-			i = 0;
-			printk("\n" JFFS2_DBG_LVL);
-		}
-	}
-	printk("\n");
-}
-
-/*
- * Dump an eraseblock's space accounting.
- */
-void
-__jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
-{
-	spin_lock(&c->erase_completion_lock);
-	__jffs2_dbg_dump_jeb_nolock(jeb);
-	spin_unlock(&c->erase_completion_lock);
-}
-
-void
-__jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb)
-{
-	if (!jeb)
-		return;
-
-	JFFS2_DEBUG("dump space accounting for the eraseblock at %#08x:\n",
-			jeb->offset);
-
-	printk(JFFS2_DBG_LVL "used_size: %#08x\n",	jeb->used_size);
-	printk(JFFS2_DBG_LVL "dirty_size: %#08x\n",	jeb->dirty_size);
-	printk(JFFS2_DBG_LVL "wasted_size: %#08x\n",	jeb->wasted_size);
-	printk(JFFS2_DBG_LVL "unchecked_size: %#08x\n",	jeb->unchecked_size);
-	printk(JFFS2_DBG_LVL "free_size: %#08x\n",	jeb->free_size);
-}
-
-void
-__jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c)
-{
-	spin_lock(&c->erase_completion_lock);
-	__jffs2_dbg_dump_block_lists_nolock(c);
-	spin_unlock(&c->erase_completion_lock);
-}
-
-void
-__jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c)
-{
-	JFFS2_DEBUG("dump JFFS2 blocks lists:\n");
-	
-	printk(JFFS2_DBG_LVL "flash_size: %#08x\n",	c->flash_size);
-	printk(JFFS2_DBG_LVL "used_size: %#08x\n",	c->used_size);
-	printk(JFFS2_DBG_LVL "dirty_size: %#08x\n",	c->dirty_size);
-	printk(JFFS2_DBG_LVL "wasted_size: %#08x\n",	c->wasted_size);
-	printk(JFFS2_DBG_LVL "unchecked_size: %#08x\n",	c->unchecked_size);
-	printk(JFFS2_DBG_LVL "free_size: %#08x\n",	c->free_size);
-	printk(JFFS2_DBG_LVL "erasing_size: %#08x\n",	c->erasing_size);
-	printk(JFFS2_DBG_LVL "bad_size: %#08x\n",	c->bad_size);
-	printk(JFFS2_DBG_LVL "sector_size: %#08x\n",	c->sector_size);
-	printk(JFFS2_DBG_LVL "jffs2_reserved_blocks size: %#08x\n",
-				c->sector_size * c->resv_blocks_write);
-
-	if (c->nextblock)
-		printk(JFFS2_DBG_LVL "nextblock: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-			"unchecked %#08x, free %#08x)\n",
-			c->nextblock->offset, c->nextblock->used_size,
-			c->nextblock->dirty_size, c->nextblock->wasted_size,
-			c->nextblock->unchecked_size, c->nextblock->free_size);
-	else
-		printk(JFFS2_DBG_LVL "nextblock: NULL\n");
-
-	if (c->gcblock)
-		printk(JFFS2_DBG_LVL "gcblock: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-			"unchecked %#08x, free %#08x)\n",
-			c->gcblock->offset, c->gcblock->used_size, c->gcblock->dirty_size,
-			c->gcblock->wasted_size, c->gcblock->unchecked_size, c->gcblock->free_size);
-	else
-		printk(JFFS2_DBG_LVL "gcblock: NULL\n");
-
-	if (list_empty(&c->clean_list)) {
-		printk(JFFS2_DBG_LVL "clean_list: empty\n");
-	} else {
-		struct list_head *this;
-		int numblocks = 0;
-		uint32_t dirty = 0;
-
-		list_for_each(this, &c->clean_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-			numblocks ++;
-			dirty += jeb->wasted_size;
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "clean_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-
-		printk (JFFS2_DBG_LVL "Contains %d blocks with total wasted size %u, average wasted size: %u\n",
-			numblocks, dirty, dirty / numblocks);
-	}
-
-	if (list_empty(&c->very_dirty_list)) {
-		printk(JFFS2_DBG_LVL "very_dirty_list: empty\n");
-	} else {
-		struct list_head *this;
-		int numblocks = 0;
-		uint32_t dirty = 0;
-
-		list_for_each(this, &c->very_dirty_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			numblocks ++;
-			dirty += jeb->dirty_size;
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "very_dirty_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-
-		printk (JFFS2_DBG_LVL "Contains %d blocks with total dirty size %u, average dirty size: %u\n",
-			numblocks, dirty, dirty / numblocks);
-	}
-
-	if (list_empty(&c->dirty_list)) {
-		printk(JFFS2_DBG_LVL "dirty_list: empty\n");
-	} else {
-		struct list_head *this;
-		int numblocks = 0;
-		uint32_t dirty = 0;
-
-		list_for_each(this, &c->dirty_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			numblocks ++;
-			dirty += jeb->dirty_size;
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "dirty_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-
-		printk (JFFS2_DBG_LVL "contains %d blocks with total dirty size %u, average dirty size: %u\n",
-			numblocks, dirty, dirty / numblocks);
-	}
-
-	if (list_empty(&c->erasable_list)) {
-		printk(JFFS2_DBG_LVL "erasable_list: empty\n");
-	} else {
-		struct list_head *this;
-
-		list_for_each(this, &c->erasable_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "erasable_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-	}
-
-	if (list_empty(&c->erasing_list)) {
-		printk(JFFS2_DBG_LVL "erasing_list: empty\n");
-	} else {
-		struct list_head *this;
-
-		list_for_each(this, &c->erasing_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "erasing_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-	}
-
-	if (list_empty(&c->erase_pending_list)) {
-		printk(JFFS2_DBG_LVL "erase_pending_list: empty\n");
-	} else {
-		struct list_head *this;
-
-		list_for_each(this, &c->erase_pending_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "erase_pending_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-	}
-
-	if (list_empty(&c->erasable_pending_wbuf_list)) {
-		printk(JFFS2_DBG_LVL "erasable_pending_wbuf_list: empty\n");
-	} else {
-		struct list_head *this;
-
-		list_for_each(this, &c->erasable_pending_wbuf_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "erasable_pending_wbuf_list: %#08x (used %#08x, dirty %#08x, "
-					"wasted %#08x, unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-	}
-
-	if (list_empty(&c->free_list)) {
-		printk(JFFS2_DBG_LVL "free_list: empty\n");
-	} else {
-		struct list_head *this;
-
-		list_for_each(this, &c->free_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "free_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-	}
-
-	if (list_empty(&c->bad_list)) {
-		printk(JFFS2_DBG_LVL "bad_list: empty\n");
-	} else {
-		struct list_head *this;
-
-		list_for_each(this, &c->bad_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "bad_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-	}
-
-	if (list_empty(&c->bad_used_list)) {
-		printk(JFFS2_DBG_LVL "bad_used_list: empty\n");
-	} else {
-		struct list_head *this;
-
-		list_for_each(this, &c->bad_used_list) {
-			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
-
-			if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
-				printk(JFFS2_DBG_LVL "bad_used_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
-					"unchecked %#08x, free %#08x)\n",
-					jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
-					jeb->unchecked_size, jeb->free_size);
-			}
-		}
-	}
-}
-
-void
-__jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f)
-{
-	down(&f->sem);
-	jffs2_dbg_dump_fragtree_nolock(f);
-	up(&f->sem);
-}
-
-void
-__jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f)
-{
-	struct jffs2_node_frag *this = frag_first(&f->fragtree);
-	uint32_t lastofs = 0;
-	int buggy = 0;
-
-	JFFS2_DEBUG("dump fragtree of ino #%u\n", f->inocache->ino);
-	while(this) {
-		if (this->node)
-			printk(JFFS2_DBG_LVL "frag %#04x-%#04x: %#08x(%d) on flash (*%p), left (%p), "
-				"right (%p), parent (%p)\n",
-				this->ofs, this->ofs+this->size, ref_offset(this->node->raw),
-				ref_flags(this->node->raw), this, frag_left(this), frag_right(this),
-				frag_parent(this));
-		else
-			printk(JFFS2_DBG_LVL "frag %#04x-%#04x: hole (*%p). left (%p), right (%p), parent (%p)\n",
-				this->ofs, this->ofs+this->size, this, frag_left(this),
-				frag_right(this), frag_parent(this));
-		if (this->ofs != lastofs)
-			buggy = 1;
-		lastofs = this->ofs + this->size;
-		this = frag_next(this);
-	}
-
-	if (f->metadata)
-		printk(JFFS2_DBG_LVL "metadata at 0x%08x\n", ref_offset(f->metadata->raw));
-
-	if (buggy) {
-		JFFS2_ERROR("frag tree got a hole in it.\n");
-		BUG();
-	}
-}
-
-#define JFFS2_BUFDUMP_BYTES_PER_LINE	32
-void
-__jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs)
-{
-	int skip;
-	int i;
-	
-	JFFS2_DEBUG("dump from offset %#08x to offset %#08x (%x bytes).\n",
-		offs, offs + len, len);
-	i = skip = offs % JFFS2_BUFDUMP_BYTES_PER_LINE;
-	offs = offs & ~(JFFS2_BUFDUMP_BYTES_PER_LINE - 1);
-	
-	if (skip != 0)
-		printk(JFFS2_DBG_LVL "%#08x: ", offs);
-	
-	while (skip--)
-		printk("   ");
-
-	while (i < len) {
-		if ((i % JFFS2_BUFDUMP_BYTES_PER_LINE) == 0 && i != len -1) {
-			if (i != 0)
-				printk("\n");
-			offs += JFFS2_BUFDUMP_BYTES_PER_LINE;
-			printk(JFFS2_DBG_LVL "%0#8x: ", offs);
-		}
-
-		printk("%02x ", buf[i]);
-		
-		i += 1;
-	}
-
-	printk("\n");
-}
-
-/*
- * Dump a JFFS2 node.
- */
-void
-__jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs)
-{
-	union jffs2_node_union node;
-	int len = sizeof(union jffs2_node_union);
-	size_t retlen;
-	uint32_t crc;
-	int ret;
-	
-	JFFS2_DEBUG("dump node at offset %#08x.\n", ofs);
-
-	ret = jffs2_flash_read(c, ofs, len, &retlen, (unsigned char *)&node);
-	if (ret || (retlen != len)) {
-		JFFS2_ERROR("read %d bytes failed or short. ret %d, retlen %zd.\n",
-			len, ret, retlen);
-		return;
-	}
-
-	printk(JFFS2_DBG_LVL "magic:\t%#04x\n",
-		je16_to_cpu(node.u.magic));
-	printk(JFFS2_DBG_LVL "nodetype:\t%#04x\n",
-		je16_to_cpu(node.u.nodetype));
-	printk(JFFS2_DBG_LVL "totlen:\t%#08x\n",
-		je32_to_cpu(node.u.totlen));
-	printk(JFFS2_DBG_LVL "hdr_crc:\t%#08x\n",
-		je32_to_cpu(node.u.hdr_crc));
-	
-	crc = crc32(0, &node.u, sizeof(node.u) - 4);
-	if (crc != je32_to_cpu(node.u.hdr_crc)) {
-		JFFS2_ERROR("wrong common header CRC.\n");
-		return;
-	}
-	
-	if (je16_to_cpu(node.u.magic) != JFFS2_MAGIC_BITMASK &&
-		je16_to_cpu(node.u.magic) != JFFS2_OLD_MAGIC_BITMASK)
-	{
-		JFFS2_ERROR("wrong node magic: %#04x instead of %#04x.\n",
-			je16_to_cpu(node.u.magic), JFFS2_MAGIC_BITMASK);
-		return;
-	}
-
-	switch(je16_to_cpu(node.u.nodetype)) {
-
-	case JFFS2_NODETYPE_INODE:
-
-		printk(JFFS2_DBG_LVL "the node is inode node\n");
-		printk(JFFS2_DBG_LVL "ino:\t%#08x\n",
-				je32_to_cpu(node.i.ino));
-		printk(JFFS2_DBG_LVL "version:\t%#08x\n",
-				je32_to_cpu(node.i.version));
-		printk(JFFS2_DBG_LVL "mode:\t%#08x\n",
-				node.i.mode.m);
-		printk(JFFS2_DBG_LVL "uid:\t%#04x\n",
-				je16_to_cpu(node.i.uid));
-		printk(JFFS2_DBG_LVL "gid:\t%#04x\n",
-				je16_to_cpu(node.i.gid));
-		printk(JFFS2_DBG_LVL "isize:\t%#08x\n",
-				je32_to_cpu(node.i.isize));
-		printk(JFFS2_DBG_LVL "atime:\t%#08x\n",
-				je32_to_cpu(node.i.atime));
-		printk(JFFS2_DBG_LVL "mtime:\t%#08x\n",
-				je32_to_cpu(node.i.mtime));
-		printk(JFFS2_DBG_LVL "ctime:\t%#08x\n",
-				je32_to_cpu(node.i.ctime));
-		printk(JFFS2_DBG_LVL "offset:\t%#08x\n",
-				je32_to_cpu(node.i.offset));
-		printk(JFFS2_DBG_LVL "csize:\t%#08x\n",
-				je32_to_cpu(node.i.csize));
-		printk(JFFS2_DBG_LVL "dsize:\t%#08x\n",
-				je32_to_cpu(node.i.dsize));
-		printk(JFFS2_DBG_LVL "compr:\t%#02x\n",
-				node.i.compr);
-		printk(JFFS2_DBG_LVL "usercompr:\t%#02x\n",
-				node.i.usercompr);
-		printk(JFFS2_DBG_LVL "flags:\t%#04x\n",
-				je16_to_cpu(node.i.flags));
-		printk(JFFS2_DBG_LVL "data_crc:\t%#08x\n",
-				je32_to_cpu(node.i.data_crc));
-		printk(JFFS2_DBG_LVL "node_crc:\t%#08x\n",
-				je32_to_cpu(node.i.node_crc));
-		crc = crc32(0, &node.i, sizeof(node.i) - 8); 
-		if (crc != je32_to_cpu(node.i.node_crc)) {
-			JFFS2_ERROR("wrong node header CRC.\n");
-			return;
-		}
-		break;
-
-	case JFFS2_NODETYPE_DIRENT:
-
-		printk(JFFS2_DBG_LVL "the node is dirent node\n");
-		printk(JFFS2_DBG_LVL "pino:\t%#08x\n",
-				je32_to_cpu(node.d.pino));
-		printk(JFFS2_DBG_LVL "version:\t%#08x\n",
-				je32_to_cpu(node.d.version));
-		printk(JFFS2_DBG_LVL "ino:\t%#08x\n",
-				je32_to_cpu(node.d.ino));
-		printk(JFFS2_DBG_LVL "mctime:\t%#08x\n",
-				je32_to_cpu(node.d.mctime));
-		printk(JFFS2_DBG_LVL "nsize:\t%#02x\n",
-				node.d.nsize);
-		printk(JFFS2_DBG_LVL "type:\t%#02x\n",
-				node.d.type);
-		printk(JFFS2_DBG_LVL "node_crc:\t%#08x\n",
-				je32_to_cpu(node.d.node_crc));
-		printk(JFFS2_DBG_LVL "name_crc:\t%#08x\n",
-				je32_to_cpu(node.d.name_crc));
-		
-		node.d.name[node.d.nsize] = '\0';
-		printk(JFFS2_DBG_LVL "name:\t\"%s\"\n", node.d.name);
-
-		crc = crc32(0, &node.d, sizeof(node.d) - 8); 
-		if (crc != je32_to_cpu(node.d.node_crc)) {
-			JFFS2_ERROR("wrong node header CRC.\n");
-			return;
-		}
-		break;
-
-	default:
-		printk(JFFS2_DBG_LVL "node type is unknown\n");
-		break;
-	}
-}
-#endif /* JFFS2_DBG_DUMPS || JFFS2_DBG_PARANOIA_CHECKS */
diff --git a/components/dfs/filesystems/jffs2/src/debug.h b/components/dfs/filesystems/jffs2/src/debug.h
deleted file mode 100644
index 652f59068d..0000000000
--- a/components/dfs/filesystems/jffs2/src/debug.h
+++ /dev/null
@@ -1,276 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: debug.h,v 1.1 2005/07/30 15:30:42 asl Exp $
- *
- */
-#ifndef _JFFS2_DEBUG_H_
-#define _JFFS2_DEBUG_H_
-#include "jffs2_config.h"
-#include <linux/config.h>
-
-#ifndef CONFIG_JFFS2_FS_DEBUG
-#define CONFIG_JFFS2_FS_DEBUG 0
-#endif
-
-#if CONFIG_JFFS2_FS_DEBUG == 1
-/* Enable "paranoia" checks and dumps */
-#define JFFS2_DBG_PARANOIA_CHECKS
-#define JFFS2_DBG_DUMPS
-#define JFFS2_DBG_READINODE_MESSAGES
-#define JFFS2_DBG_FRAGTREE_MESSAGES
-#define JFFS2_DBG_DENTLIST_MESSAGES
-#define JFFS2_DBG_NODEREF_MESSAGES
-#define JFFS2_DBG_INOCACHE_MESSAGES
-#endif
-
-#if CONFIG_JFFS2_FS_DEBUG == 2
-#define JFFS2_DBG_FRAGTREE2_MESSAGES
-#endif
-
-/* Enable JFFS2 sanity checks by default */
-#define JFFS2_DBG_SANITY_CHECKS
-
-/*
- * Dx() are mainly used for debugging messages, they must go away and be
- * superseded by nicer JFFS2_DBG_XXX() macros...
- */
-#if CONFIG_JFFS2_FS_DEBUG > 0
-#define D1(x) x
-#else
-#define D1(x)
-#endif
-
-#if CONFIG_JFFS2_FS_DEBUG > 1
-#define D2(x) x
-#else
-#define D2(x)
-#endif
-
-/* The prefixes of JFFS2 messages */
-#define JFFS2_DBG_MSG_PREFIX "[JFFS2 DBG]"
-#define JFFS2_ERR_MSG_PREFIX "JFFS2 error: "
-#define JFFS2_WARN_MSG_PREFIX "JFFS2 warning: "
-#define JFFS2_NOTICE_MSG_PREFIX "JFFS2 notice: "
-
-#define JFFS2_ERR_LVL		KERN_ERR
-#define JFFS2_WARN_LVL		KERN_WARNING
-#define JFFS2_NOTICE_LVL	KERN_NOTICE
-#define JFFS2_DBG_LVL		KERN_DEBUG
-
-/* JFFS2 message macros */
-#define JFFS2_ERROR(fmt, ...)						\
-	do {								\
-		printk(JFFS2_ERR_LVL JFFS2_ERR_MSG_PREFIX " %s: "	\
-				fmt, __FUNCTION__, ##__VA_ARGS__);	\
-	} while(0)
-
-#define JFFS2_WARNING(fmt, ...)						\
-	do {								\
-		printk(JFFS2_WARN_LVL JFFS2_WARN_MSG_PREFIX " %s: "	\
-				fmt, __FUNCTION__, ##__VA_ARGS__);	\
-	} while(0)
-
-#define JFFS2_NOTICE(fmt, ...)						\
-	do {								\
-		printk(JFFS2_NOTICE_LVL JFFS2_NOTICE_MSG_PREFIX " %s: "	\
-				fmt, __FUNCTION__, ##__VA_ARGS__);	\
-	} while(0)
-
-#define JFFS2_DEBUG(fmt, ...)						\
-	do {								\
-		printk(JFFS2_DBG_LVL JFFS2_DBG_MSG_PREFIX " %s: "	\
-				fmt, __FUNCTION__, ##__VA_ARGS__);	\
-	} while(0)
-
-/*
- * We split our debugging messages on several parts, depending on the JFFS2
- * subsystem the message belongs to.
- */
-/* Read inode debugging messages */
-#ifdef JFFS2_DBG_READINODE_MESSAGES
-#define JFFS2_DBG_READINODE(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
-#else
-#define JFFS2_DBG_READINODE(fmt, ...)
-#endif
-
-/* Fragtree build debugging messages */
-#ifdef JFFS2_DBG_FRAGTREE_MESSAGES
-#define JFFS2_DBG_FRAGTREE(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
-#else
-#define JFFS2_DBG_FRAGTREE(fmt, ...)
-#endif
-
-/* Directory entry list manilulation debugging messages */
-#ifdef JFFS2_DBG_DENTLIST_MESSAGES
-#define JFFS2_DBG_DENTLIST(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
-#else
-#define JFFS2_DBG_DENTLIST(fmt, ...)
-#endif
-#ifdef JFFS2_DBG_FRAGTREE2_MESSAGES
-#define JFFS2_DBG_FRAGTREE2(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
-#else
-#define JFFS2_DBG_FRAGTREE2(fmt, ...)
-#endif
-
-/* Print the messages about manipulating node_refs */
-#ifdef JFFS2_DBG_NODEREF_MESSAGES
-#define JFFS2_DBG_NODEREF(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
-#else
-#define JFFS2_DBG_NODEREF(fmt, ...)
-#endif
-
-/* Manipulations with the list of inodes (JFFS2 inocache) */
-#ifdef JFFS2_DBG_INOCACHE_MESSAGES
-#define JFFS2_DBG_INOCACHE(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
-#else
-#define JFFS2_DBG_INOCACHE(fmt, ...)
-#endif
-
-/* Watch the object allocations */
-#ifdef JFFS2_DBG_MEMALLOC_MESSAGES
-#define JFFS2_DBG_MEMALLOC(fmt, ...)	JFFS2_DEBUG(fmt, ##__VA_ARGS__)
-#else
-#define JFFS2_DBG_MEMALLOC(fmt, ...)
-#endif
-
-
-/* "Paranoia" checks */
-void
-__jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f);
-void
-__jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f);
-void
-__jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
-			   	struct jffs2_eraseblock *jeb);
-void
-__jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
-				       struct jffs2_eraseblock *jeb);
-void
-__jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
-				    uint32_t ofs, int len);
-
-/* "Dump" functions */
-void
-__jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-void
-__jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb);
-void
-__jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c);
-void
-__jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c);
-void
-__jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c,
-		 	   struct jffs2_eraseblock *jeb);
-void
-__jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c,
-				  struct jffs2_eraseblock *jeb);
-void
-__jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f);
-void
-__jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f);
-void
-__jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs);
-void
-__jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs);
-
-#ifdef JFFS2_DBG_PARANOIA_CHECKS
-#define jffs2_dbg_fragtree_paranoia_check(f)			\
-	__jffs2_dbg_fragtree_paranoia_check(f)
-#define jffs2_dbg_fragtree_paranoia_check_nolock(f)		\
-	__jffs2_dbg_fragtree_paranoia_check_nolock(f)
-#define jffs2_dbg_acct_paranoia_check(c, jeb)			\
-	__jffs2_dbg_acct_paranoia_check(c,jeb)
-#define jffs2_dbg_acct_paranoia_check_nolock(c, jeb)		\
-	__jffs2_dbg_acct_paranoia_check_nolock(c,jeb)
-#define jffs2_dbg_prewrite_paranoia_check(c, ofs, len)		\
-	__jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
-#else
-#define jffs2_dbg_fragtree_paranoia_check(f)
-#define jffs2_dbg_fragtree_paranoia_check_nolock(f)
-#define jffs2_dbg_acct_paranoia_check(c, jeb)
-#define jffs2_dbg_acct_paranoia_check_nolock(c, jeb)
-#define jffs2_dbg_prewrite_paranoia_check(c, ofs, len)
-#endif /* !JFFS2_PARANOIA_CHECKS */
-
-#ifdef JFFS2_DBG_DUMPS
-#define jffs2_dbg_dump_jeb(c, jeb)				\
-	__jffs2_dbg_dump_jeb(c, jeb);
-#define jffs2_dbg_dump_jeb_nolock(jeb)				\
-	__jffs2_dbg_dump_jeb_nolock(jeb);
-#define jffs2_dbg_dump_block_lists(c)				\
-	__jffs2_dbg_dump_block_lists(c)
-#define jffs2_dbg_dump_block_lists_nolock(c)			\
-	__jffs2_dbg_dump_block_lists_nolock(c)
-#define jffs2_dbg_dump_fragtree(f)				\
-	__jffs2_dbg_dump_fragtree(f);
-#define jffs2_dbg_dump_fragtree_nolock(f)			\
-	__jffs2_dbg_dump_fragtree_nolock(f);
-#define jffs2_dbg_dump_buffer(buf, len, offs)			\
-	__jffs2_dbg_dump_buffer(*buf, len, offs);
-#define jffs2_dbg_dump_node(c, ofs)				\
-	__jffs2_dbg_dump_node(c, ofs);
-#else
-#define jffs2_dbg_dump_jeb(c, jeb)
-#define jffs2_dbg_dump_jeb_nolock(jeb)
-#define jffs2_dbg_dump_block_lists(c)
-#define jffs2_dbg_dump_block_lists_nolock(c)
-#define jffs2_dbg_dump_fragtree(f)
-#define jffs2_dbg_dump_fragtree_nolock(f)
-#define jffs2_dbg_dump_buffer(buf, len, offs)
-#define jffs2_dbg_dump_node(c, ofs)
-#endif /* !JFFS2_DBG_DUMPS */
-
-/*
- * Sanity checks are supposed to be light-weight and enabled by default.
- */
-#ifdef JFFS2_DBG_SANITY_CHECKS
-/*
- * Check the space accounting of the file system and of
- * the JFFS2 erasable block 'jeb'.
- */
-static inline void
-jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c,
-				   struct jffs2_eraseblock *jeb)
-{
-	if (unlikely(jeb && jeb->used_size + jeb->dirty_size +
-			jeb->free_size + jeb->wasted_size +
-			jeb->unchecked_size != c->sector_size)) {
-		JFFS2_ERROR("eeep, space accounting for block at 0x%08x is screwed.\n", jeb->offset);
-		JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + wasted %#08x + unchecked "
-			"%#08x != total %#08x.\n", jeb->free_size, jeb->dirty_size, jeb->used_size,
-			jeb->wasted_size, jeb->unchecked_size, c->sector_size);
-		BUG();
-	}
-
-	if (unlikely(c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size
-				+ c->wasted_size + c->unchecked_size != c->flash_size)) {
-		JFFS2_ERROR("eeep, space accounting superblock info is screwed.\n");
-		JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + erasing %#08x + bad %#08x + "
-			"wasted %#08x + unchecked %#08x != total %#08x.\n",
-			c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size,
-			c->wasted_size, c->unchecked_size, c->flash_size);
-		BUG();
-	}
-}
-
-static inline void
-jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,
-			    struct jffs2_eraseblock *jeb)
-{
-	spin_lock(&c->erase_completion_lock);
-	jffs2_dbg_acct_sanity_check_nolock(c, jeb);
-	spin_unlock(&c->erase_completion_lock);
-}
-#else
-#define jffs2_dbg_acct_sanity_check(c, jeb)
-#define jffs2_dbg_acct_sanity_check_nolock(c, jeb)
-#endif /* !JFFS2_DBG_SANITY_CHECKS */
-
-#endif /* _JFFS2_DEBUG_H_ */
diff --git a/components/dfs/filesystems/jffs2/src/dir-ecos.c b/components/dfs/filesystems/jffs2/src/dir-ecos.c
deleted file mode 100644
index b52b89928f..0000000000
--- a/components/dfs/filesystems/jffs2/src/dir-ecos.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Free Software Foundation, Inc.
- *
- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: dir-ecos.c,v 1.11 2005/02/08 19:36:27 lunn Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/crc32.h>
-#include "nodelist.h"
-
-/***********************************************************************/
-
-/* Takes length argument because it can be either NUL-terminated or '/'-terminated */
-struct _inode *jffs2_lookup(struct _inode *dir_i, const unsigned char *d_name, int namelen)
-{
-	struct jffs2_inode_info *dir_f;
-	struct jffs2_full_dirent *fd = NULL, *fd_list;
-	uint32_t ino = 0;
-	uint32_t hash = full_name_hash(d_name, namelen);
-	struct _inode *inode = NULL;
-
-	D1(printk("jffs2_lookup()\n"));
-
-	dir_f = JFFS2_INODE_INFO(dir_i);
-
-	down(&dir_f->sem);
-
-	/* NB: The 2.2 backport will need to explicitly check for '.' and '..' here */
-	for (fd_list = dir_f->dents; fd_list && fd_list->nhash <= hash; fd_list = fd_list->next) {
-		if (fd_list->nhash == hash && 
-		    (!fd || fd_list->version > fd->version) &&
-		    strlen((char *)fd_list->name) == namelen &&
-		    !strncmp((char *)fd_list->name, (char *)d_name, namelen)) {
-			fd = fd_list;
-		}
-	}
-	if (fd)
-		ino = fd->ino;
-	up(&dir_f->sem);
-	if (ino) {
-		inode = jffs2_iget(dir_i->i_sb, ino);
-		if (IS_ERR(inode)) {
-			printk("jffs2_iget() failed for ino #%u\n", ino);
-			return inode;
-		}
-	}
-
-	return inode;
-}
-
-/***********************************************************************/
-
-
-
-int jffs2_create(struct _inode *dir_i, const unsigned char *d_name, int mode,
-                 struct _inode **new_i)
-{
-	struct jffs2_raw_inode *ri;
-	struct jffs2_inode_info *f, *dir_f;
-	struct jffs2_sb_info *c;
-	struct _inode *inode;
-	int ret;
-
-	ri = jffs2_alloc_raw_inode();
-	if (!ri)
-		return -ENOMEM;
-	
-	c = JFFS2_SB_INFO(dir_i->i_sb);
-
-	D1(printk(KERN_DEBUG "jffs2_create()\n"));
-
-	inode = jffs2_new_inode(dir_i, mode, ri);
-
-	if (IS_ERR(inode)) {
-		D1(printk(KERN_DEBUG "jffs2_new_inode() failed\n"));
-		jffs2_free_raw_inode(ri);
-		return PTR_ERR(inode);
-	}
-
-	f = JFFS2_INODE_INFO(inode);
-	dir_f = JFFS2_INODE_INFO(dir_i);
-
-	ret = jffs2_do_create(c, dir_f, f, ri, 
-			      (const char *)d_name, 
-                              strlen((char *)d_name));
-
-	if (ret) {
-		inode->i_nlink = 0;
-		jffs2_iput(inode);
-		jffs2_free_raw_inode(ri);
-		return ret;
-	}
-
-	jffs2_free_raw_inode(ri);
-
-	D1(printk(KERN_DEBUG "jffs2_create: Created ino #%lu with mode %o, nlink %d(%d)\n",
-		  inode->i_ino, inode->i_mode, inode->i_nlink, f->inocache->nlink));
-        *new_i = inode;
-	return 0;
-}
-
-/***********************************************************************/
-
-
-int jffs2_unlink(struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name)
-{
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(dir_i->i_sb);
-	struct jffs2_inode_info *dir_f = JFFS2_INODE_INFO(dir_i);
-	struct jffs2_inode_info *dead_f = JFFS2_INODE_INFO(d_inode);
-	int ret;
-
-	ret = jffs2_do_unlink(c, dir_f, (const char *)d_name, 
-			       strlen((char *)d_name), dead_f);
-	if (dead_f->inocache)
-		d_inode->i_nlink = dead_f->inocache->nlink;
-	return ret;
-}
-/***********************************************************************/
-
-
-int jffs2_link (struct _inode *old_d_inode, struct _inode *dir_i, const unsigned char *d_name)
-{
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(old_d_inode->i_sb);
-	struct jffs2_inode_info *f = JFFS2_INODE_INFO(old_d_inode);
-	struct jffs2_inode_info *dir_f = JFFS2_INODE_INFO(dir_i);
-	int ret;
-
-	/* XXX: This is ugly */
-	uint8_t type = (old_d_inode->i_mode & S_IFMT) >> 12;
-	if (!type) type = DT_REG;
-
-	ret = jffs2_do_link(c, dir_f, f->inocache->ino, type, 
-                            (const char * )d_name, 
-                            strlen((char *)d_name));
-
-	if (!ret) {
-		down(&f->sem);
-		old_d_inode->i_nlink = ++f->inocache->nlink;
-		up(&f->sem);
-	}
-	return ret;
-}
-
-int jffs2_mkdir (struct _inode *dir_i, const unsigned char *d_name, int mode)
-{
-	struct jffs2_inode_info *f, *dir_f;
-	struct jffs2_sb_info *c;
-	struct _inode *inode;
-	struct jffs2_raw_inode *ri;
-	struct jffs2_raw_dirent *rd;
-	struct jffs2_full_dnode *fn;
-	struct jffs2_full_dirent *fd;
-	int namelen;
-	uint32_t alloclen, phys_ofs;
-	int ret;
-
-	mode |= S_IFDIR;
-
-	ri = jffs2_alloc_raw_inode();
-	if (!ri)
-		return -ENOMEM;
-	
-	c = JFFS2_SB_INFO(dir_i->i_sb);
-
-	/* Try to reserve enough space for both node and dirent. 
-	 * Just the node will do for now, though 
-	 */
-	namelen = strlen((char *)d_name);
-	ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL);
-
-	if (ret) {
-		jffs2_free_raw_inode(ri);
-		return ret;
-	}
-
-	inode = jffs2_new_inode(dir_i, mode, ri);
-
-	if (IS_ERR(inode)) {
-		jffs2_free_raw_inode(ri);
-		jffs2_complete_reservation(c);
-		return PTR_ERR(inode);
-	}
-
-	f = JFFS2_INODE_INFO(inode);
-
-	ri->data_crc = cpu_to_je32(0);
-	ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
-	
-	fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
-
-	jffs2_free_raw_inode(ri);
-
-	if (IS_ERR(fn)) {
-		/* Eeek. Wave bye bye */
-		up(&f->sem);
-		jffs2_complete_reservation(c);
-		inode->i_nlink = 0;
-		jffs2_iput(inode);
-		return PTR_ERR(fn);
-	}
-	/* No data here. Only a metadata node, which will be 
-	   obsoleted by the first data write
-	*/
-	f->metadata = fn;
-	up(&f->sem);
-
-	jffs2_complete_reservation(c);
-	ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
-	if (ret) {
-		/* Eep. */
-		inode->i_nlink = 0;
-		jffs2_iput(inode);
-		return ret;
-	}
-	
-	rd = jffs2_alloc_raw_dirent();
-	if (!rd) {
-		/* Argh. Now we treat it like a normal delete */
-		jffs2_complete_reservation(c);
-		inode->i_nlink = 0;
-		jffs2_iput(inode);
-		return -ENOMEM;
-	}
-
-	dir_f = JFFS2_INODE_INFO(dir_i);
-	down(&dir_f->sem);
-
-	rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-	rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
-	rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
-	rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
-
-	rd->pino = cpu_to_je32(dir_i->i_ino);
-	rd->version = cpu_to_je32(++dir_f->highest_version);
-	rd->ino = cpu_to_je32(inode->i_ino);
-	rd->mctime = cpu_to_je32(jffs2_get_timestamp());
-	rd->nsize = namelen;
-	rd->type = DT_DIR;
-	rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
-	rd->name_crc = cpu_to_je32(crc32(0, d_name, namelen));
-
-	fd = jffs2_write_dirent(c, dir_f, rd, d_name, namelen, phys_ofs, ALLOC_NORMAL);
-	
-	jffs2_complete_reservation(c);
-	jffs2_free_raw_dirent(rd);
-	
-	if (IS_ERR(fd)) {
-		/* dirent failed to write. Delete the inode normally 
-		   as if it were the final unlink() */
-		up(&dir_f->sem);
-		inode->i_nlink = 0;
-		jffs2_iput(inode);
-		return PTR_ERR(fd);
-	}
-
-	/* Link the fd into the inode's list, obsoleting an old
-	   one if necessary. */
-	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
-	up(&dir_f->sem);
-
-	jffs2_iput(inode);
-	return 0;
-}
-
-int jffs2_rmdir (struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name)
-{
-	struct jffs2_inode_info *f = JFFS2_INODE_INFO(d_inode);
-	struct jffs2_full_dirent *fd;
-
-	for (fd = f->dents ; fd; fd = fd->next) {
-		if (fd->ino)
-			return EPERM; //-ENOTEMPTY;
-	}
-	return jffs2_unlink(dir_i, d_inode, d_name);
-}
-
-int jffs2_rename (struct _inode *old_dir_i, struct _inode *d_inode, const unsigned char *old_d_name,
-		  struct _inode *new_dir_i, const unsigned char *new_d_name)
-{
-	int ret;
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb);
-	struct jffs2_inode_info *victim_f = NULL;
-	uint8_t type;
-
-#if 0 /* FIXME -- this really doesn't belong in individual file systems. 
-	 The fileio code ought to do this for us, or at least part of it */
-	if (new_dentry->d_inode) {
-		if (S_ISDIR(d_inode->i_mode) && 
-		    !S_ISDIR(new_dentry->d_inode->i_mode)) {
-			/* Cannot rename directory over non-directory */
-			return -EINVAL;
-		}
-
-		victim_f = JFFS2_INODE_INFO(new_dentry->d_inode);
-
-		if (S_ISDIR(new_dentry->d_inode->i_mode)) {
-			struct jffs2_full_dirent *fd;
-
-			if (!S_ISDIR(d_inode->i_mode)) {
-				/* Cannot rename non-directory over directory */
-				return -EINVAL;
-			}
-			down(&victim_f->sem);
-			for (fd = victim_f->dents; fd; fd = fd->next) {
-				if (fd->ino) {
-					up(&victim_f->sem);
-					return -ENOTEMPTY;
-				}
-			}
-			up(&victim_f->sem);
-		}
-	}
-#endif
-
-	/* XXX: We probably ought to alloc enough space for
-	   both nodes at the same time. Writing the new link, 
-	   then getting -ENOSPC, is quite bad :)
-	*/
-
-	/* Make a hard link */
-	
-	/* XXX: This is ugly */
-	type = (d_inode->i_mode & S_IFMT) >> 12;
-	if (!type) type = DT_REG;
-
-	ret = jffs2_do_link(c, JFFS2_INODE_INFO(new_dir_i), 
-			    d_inode->i_ino, type,
-			    (const char *)new_d_name, 
-                            strlen((char *)new_d_name));
-
-	if (ret)
-		return ret;
-
-	if (victim_f) {
-		/* There was a victim. Kill it off nicely */
-		/* Don't oops if the victim was a dirent pointing to an
-		   inode which didn't exist. */
-		if (victim_f->inocache) {
-			down(&victim_f->sem);
-			victim_f->inocache->nlink--;
-			up(&victim_f->sem);
-		}
-	}
-
-	/* Unlink the original */
-	ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i), 
-                              (const char *)old_d_name, 
-                              strlen((char *)old_d_name), NULL);
-
-	if (ret) {
-		/* Oh shit. We really ought to make a single node which can do both atomically */
-		struct jffs2_inode_info *f = JFFS2_INODE_INFO(d_inode);
-		down(&f->sem);
-		if (f->inocache)
-			d_inode->i_nlink = f->inocache->nlink++;
-		up(&f->sem);
-
-		printk(KERN_NOTICE "jffs2_rename(): Link succeeded, unlink failed (err %d). You now have a hard link\n", ret);
-	}
-	return ret;
-}
-
diff --git a/components/dfs/filesystems/jffs2/src/dir.txt b/components/dfs/filesystems/jffs2/src/dir.txt
deleted file mode 100644
index 93767aa2ba..0000000000
--- a/components/dfs/filesystems/jffs2/src/dir.txt
+++ /dev/null
@@ -1,70 +0,0 @@
-�ļ��� PATH �б�
-�����к�Ϊ 00000200 38BE:1B05
-F:.
-jffs2/dfs_jffs2.c
-jffs2/porting.c
-
-adler32.c
-
-compress.c
-configure
-deflate.c
-
-example.c
-
-gzio.c
-
-infback.c
-infblock.c
-
-inffast.c
-
-
-inflate.c
-
-inftrees.c
-
-infutil.c
-
-
-
-
-maketree.c
-
-minigzip.c
-
-
-trees.c
-
-uncompr.c
-
-zutil.c
-
-
-jffs2/crc/crcd
-jffs2/crc/crc16.c
-jffs2/crc/crc32.c
-jffs2/crc/posix_crc.c
-
-jffs2/kernel/rbtree.c
-
-jffs2/src/build.c
-jffs2/src/compr.c
-jffs2/src/compr_rtime.c
-jffs2/src/compr_rubin.c
-jffs2/src/compr_zlib.c
-jffs2/src/debug.c
-jffs2/src/dir-ecos.c
-jffs2/src/erase.c
-jffs2/src/flashio.c
-jffs2/src/fs-ecos.c
-jffs2/src/gc.c
-jffs2/src/gcthread.c
-jffs2/src/malloc-ecos.c
-jffs2/src/nodelist.c
-jffs2/src/nodemgmt.c
-jffs2/src/read.c
-jffs2/src/readinode.c
-jffs2/src/scan.c
-jffs2/src/write.c
-        
diff --git a/components/dfs/filesystems/jffs2/src/erase.c b/components/dfs/filesystems/jffs2/src/erase.c
deleted file mode 100644
index 3844e1d389..0000000000
--- a/components/dfs/filesystems/jffs2/src/erase.c
+++ /dev/null
@@ -1,469 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: erase.c,v 1.83 2005/07/22 10:32:08 dedekind Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/mtd/mtd.h>
-#include <linux/compiler.h>
-#include <linux/crc32.h>
-#include <linux/sched.h>
-#include <linux/pagemap.h>
-#include "nodelist.h"
-
-struct erase_priv_struct {
-	struct jffs2_eraseblock *jeb;
-	struct jffs2_sb_info *c;
-};
-      
-#ifndef __ECOS
-static void jffs2_erase_callback(struct erase_info *);
-#endif
-static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset);
-static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-static void jffs2_free_all_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-
-static void jffs2_erase_block(struct jffs2_sb_info *c,
-			      struct jffs2_eraseblock *jeb)
-{
-	int ret;
-	uint32_t bad_offset;
-#ifdef __ECOS
-       ret = jffs2_flash_erase(c, jeb);
-       if (!ret) {
-               jffs2_erase_succeeded(c, jeb);
-               return;
-       }
-       bad_offset = jeb->offset;
-#else /* Linux */
-	struct erase_info *instr;
-
-	D1(printk(KERN_DEBUG "jffs2_erase_block(): erase block %#08x (range %#08x-%#08x)\n",
-				jeb->offset, jeb->offset, jeb->offset + c->sector_size));
-	instr = kmalloc(sizeof(struct erase_info) + sizeof(struct erase_priv_struct), GFP_KERNEL);
-	if (!instr) {
-		printk(KERN_WARNING "kmalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n");
-		spin_lock(&c->erase_completion_lock);
-		list_del(&jeb->list);
-		list_add(&jeb->list, &c->erase_pending_list);
-		c->erasing_size -= c->sector_size;
-		c->dirty_size += c->sector_size;
-		jeb->dirty_size = c->sector_size;
-		spin_unlock(&c->erase_completion_lock);
-		return;
-	}
-
-	memset(instr, 0, sizeof(*instr));
-
-	instr->mtd = c->mtd;
-	instr->addr = jeb->offset;
-	instr->len = c->sector_size;
-	instr->callback = jffs2_erase_callback;
-	instr->priv = (unsigned long)(&instr[1]);
-	instr->fail_addr = 0xffffffff;
-	
-	((struct erase_priv_struct *)instr->priv)->jeb = jeb;
-	((struct erase_priv_struct *)instr->priv)->c = c;
-
-	ret = c->mtd->erase(c->mtd, instr);
-	if (!ret)
-		return;
-
-	bad_offset = instr->fail_addr;
-	kfree(instr);
-#endif /* __ECOS */
-
-	if (ret == -ENOMEM || ret == -EAGAIN) {
-		/* Erase failed immediately. Refile it on the list */
-		D1(printk(KERN_DEBUG "Erase at 0x%08x failed: %d. Refiling on erase_pending_list\n", jeb->offset, ret));
-		spin_lock(&c->erase_completion_lock);
-		list_del(&jeb->list);
-		list_add(&jeb->list, &c->erase_pending_list);
-		c->erasing_size -= c->sector_size;
-		c->dirty_size += c->sector_size;
-		jeb->dirty_size = c->sector_size;
-		spin_unlock(&c->erase_completion_lock);
-		return;
-	}
-
-	if (ret == -EROFS) 
-		printk(KERN_WARNING "Erase at 0x%08x failed immediately: -EROFS. Is the sector locked?\n", jeb->offset);
-	else
-		printk(KERN_WARNING "Erase at 0x%08x failed immediately: errno %d\n", jeb->offset, ret);
-
-	jffs2_erase_failed(c, jeb, bad_offset);
-}
-
-void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
-{
-	struct jffs2_eraseblock *jeb;
-
-	down(&c->erase_free_sem);
-
-	spin_lock(&c->erase_completion_lock);
-
-	while (!list_empty(&c->erase_complete_list) ||
-	       !list_empty(&c->erase_pending_list)) {
-
-		if (!list_empty(&c->erase_complete_list)) {
-			jeb = list_entry(c->erase_complete_list.next, struct jffs2_eraseblock, list);
-			list_del(&jeb->list);
-			spin_unlock(&c->erase_completion_lock);
-			jffs2_mark_erased_block(c, jeb);
-
-			if (!--count) {
-				D1(printk(KERN_DEBUG "Count reached. jffs2_erase_pending_blocks leaving\n"));
-				goto done;
-			}
-
-		} else if (!list_empty(&c->erase_pending_list)) {
-			jeb = list_entry(c->erase_pending_list.next, struct jffs2_eraseblock, list);
-			D1(printk(KERN_DEBUG "Starting erase of pending block 0x%08x\n", jeb->offset));
-			list_del(&jeb->list);
-			c->erasing_size += c->sector_size;
-			c->wasted_size -= jeb->wasted_size;
-			c->free_size -= jeb->free_size;
-			c->used_size -= jeb->used_size;
-			c->dirty_size -= jeb->dirty_size;
-			jeb->wasted_size = jeb->used_size = jeb->dirty_size = jeb->free_size = 0;
-			jffs2_free_all_node_refs(c, jeb);
-			list_add(&jeb->list, &c->erasing_list);
-			spin_unlock(&c->erase_completion_lock);
-
-			jffs2_erase_block(c, jeb);
-
-		} else {
-			BUG();
-		}
-
-		/* Be nice */
-		cond_resched();
-		spin_lock(&c->erase_completion_lock);
-	}
-
-	spin_unlock(&c->erase_completion_lock);
- done:
-	D1(printk(KERN_DEBUG "jffs2_erase_pending_blocks completed\n"));
-
-	up(&c->erase_free_sem);
-}
-
-static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
-{
-	D1(printk(KERN_DEBUG "Erase completed successfully at 0x%08x\n", jeb->offset));
-	spin_lock(&c->erase_completion_lock);
-	list_del(&jeb->list);
-	list_add_tail(&jeb->list, &c->erase_complete_list);
-	spin_unlock(&c->erase_completion_lock);
-	/* Ensure that kupdated calls us again to mark them clean */
-	jffs2_erase_pending_trigger(c);
-}
-
-static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset)
-{
-	/* For NAND, if the failure did not occur at the device level for a
-	   specific physical page, don't bother updating the bad block table. */
-	if (jffs2_cleanmarker_oob(c) && (bad_offset != 0xffffffff)) {
-		/* We had a device-level failure to erase.  Let's see if we've
-		   failed too many times. */
-		if (!jffs2_write_nand_badblock(c, jeb, bad_offset)) {
-			/* We'd like to give this block another try. */
-			spin_lock(&c->erase_completion_lock);
-			list_del(&jeb->list);
-			list_add(&jeb->list, &c->erase_pending_list);
-			c->erasing_size -= c->sector_size;
-			c->dirty_size += c->sector_size;
-			jeb->dirty_size = c->sector_size;
-			spin_unlock(&c->erase_completion_lock);
-			return;
-		}
-	}
-
-	spin_lock(&c->erase_completion_lock);
-	c->erasing_size -= c->sector_size;
-	c->bad_size += c->sector_size;
-	list_del(&jeb->list);
-	list_add(&jeb->list, &c->bad_list);
-	c->nr_erasing_blocks--;
-	spin_unlock(&c->erase_completion_lock);
-	wake_up(&c->erase_wait);
-}	 
-
-#ifndef __ECOS
-static void jffs2_erase_callback(struct erase_info *instr)
-{
-	struct erase_priv_struct *priv = (void *)instr->priv;
-
-	if(instr->state != MTD_ERASE_DONE) {
-		printk(KERN_WARNING "Erase at 0x%08x finished, but state != MTD_ERASE_DONE. State is 0x%x instead.\n", instr->addr, instr->state);
-		jffs2_erase_failed(priv->c, priv->jeb, instr->fail_addr);
-	} else {
-		jffs2_erase_succeeded(priv->c, priv->jeb);
-	}	
-	kfree(instr);
-}
-#endif /* !__ECOS */
-
-/* Hmmm. Maybe we should accept the extra space it takes and make
-   this a standard doubly-linked list? */
-static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,
-			struct jffs2_raw_node_ref *ref, struct jffs2_eraseblock *jeb)
-{
-	struct jffs2_inode_cache *ic = NULL;
-	struct jffs2_raw_node_ref **prev;
-
-	prev = &ref->next_in_ino;
-
-	/* Walk the inode's list once, removing any nodes from this eraseblock */
-	while (1) {
-		if (!(*prev)->next_in_ino) {
-			/* We're looking at the jffs2_inode_cache, which is 
-			   at the end of the linked list. Stash it and continue
-			   from the beginning of the list */
-			ic = (struct jffs2_inode_cache *)(*prev);
-			prev = &ic->nodes;
-			continue;
-		} 
-
-		if (SECTOR_ADDR((*prev)->flash_offset) == jeb->offset) {
-			/* It's in the block we're erasing */
-			struct jffs2_raw_node_ref *this;
-
-			this = *prev;
-			*prev = this->next_in_ino;
-			this->next_in_ino = NULL;
-
-			if (this == ref)
-				break;
-
-			continue;
-		}
-		/* Not to be deleted. Skip */
-		prev = &((*prev)->next_in_ino);
-	}
-
-	/* PARANOIA */
-	if (!ic) {
-		printk(KERN_WARNING "inode_cache not found in remove_node_refs()!!\n");
-		return;
-	}
-
-	D1(printk(KERN_DEBUG "Removed nodes in range 0x%08x-0x%08x from ino #%u\n",
-		  jeb->offset, jeb->offset + c->sector_size, ic->ino));
-
-	D2({
-		int i=0;
-		struct jffs2_raw_node_ref *this;
-		printk(KERN_DEBUG "After remove_node_refs_from_ino_list: \n" KERN_DEBUG);
-
-		this = ic->nodes;
-	   
-		while(this) {
-			printk( "0x%08x(%d)->", ref_offset(this), ref_flags(this));
-			if (++i == 5) {
-				printk("\n" KERN_DEBUG);
-				i=0;
-			}
-			this = this->next_in_ino;
-		}
-		printk("\n");
-	});
-
-	if (ic->nodes == (void *)ic && ic->nlink == 0)
-		jffs2_del_ino_cache(c, ic);
-}
-
-static void jffs2_free_all_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
-{
-	struct jffs2_raw_node_ref *ref;
-	D1(printk(KERN_DEBUG "Freeing all node refs for eraseblock offset 0x%08x\n", jeb->offset));
-	while(jeb->first_node) {
-		ref = jeb->first_node;
-		jeb->first_node = ref->next_phys;
-		
-		/* Remove from the inode-list */
-		if (ref->next_in_ino)
-			jffs2_remove_node_refs_from_ino_list(c, ref, jeb);
-		/* else it was a non-inode node or already removed, so don't bother */
-
-		jffs2_free_raw_node_ref(ref);
-	}
-	jeb->last_node = NULL;
-}
-
-static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t *bad_offset)
-{
-	void *ebuf;
-	uint32_t ofs;
-	size_t retlen;
-	int ret = -EIO;
-	
-	ebuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!ebuf) {
-		printk(KERN_WARNING "Failed to allocate page buffer for verifying erase at 0x%08x. Refiling\n", jeb->offset);
-		return -EAGAIN;
-	}
-
-	D1(printk(KERN_DEBUG "Verifying erase at 0x%08x\n", jeb->offset));
-
-	for (ofs = jeb->offset; ofs < jeb->offset + c->sector_size; ) {
-		uint32_t readlen = min((uint32_t)PAGE_SIZE, jeb->offset + c->sector_size - ofs);
-		int i;
-
-		*bad_offset = ofs;
-
-		ret = jffs2_flash_read(c, ofs, readlen, &retlen, ebuf);
-		if (ret) {
-			printk(KERN_WARNING "Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", ofs, ret);
-			goto fail;
-		}
-		if (retlen != readlen) {
-			printk(KERN_WARNING "Short read from newly-erased block at 0x%08x. Wanted %d, got %zd\n", ofs, readlen, retlen);
-			goto fail;
-		}
-		for (i=0; i<readlen; i += sizeof(unsigned long)) {
-			/* It's OK. We know it's properly aligned */
-			unsigned long *datum = (unsigned long *)((char *)ebuf + i);
-			if (*datum + 1) {
-				*bad_offset += i;
-				printk(KERN_WARNING "Newly-erased block contained word 0x%lx at offset 0x%08x\n", *datum, *bad_offset);
-				goto fail;
-			}
-		}
-		ofs += readlen;
-		cond_resched();
-	}
-	ret = 0;
-fail:
-	kfree(ebuf);
-	return ret;
-}
-
-static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
-{
-	struct jffs2_raw_node_ref *marker_ref = NULL;
-	size_t retlen;
-	int ret;
-	uint32_t bad_offset;
-
-	switch (jffs2_block_check_erase(c, jeb, &bad_offset)) {
-	case -EAGAIN:	goto refile;
-	case -EIO:	goto filebad;
-	}
-
-	/* Write the erase complete marker */	
-	D1(printk(KERN_DEBUG "Writing erased marker to block at 0x%08x\n", jeb->offset));
-	bad_offset = jeb->offset;
-
-	/* Cleanmarker in oob area or no cleanmarker at all ? */
-	if (jffs2_cleanmarker_oob(c) || c->cleanmarker_size == 0) {
-
-		if (jffs2_cleanmarker_oob(c)) {
-			if (jffs2_write_nand_cleanmarker(c, jeb))
-				goto filebad;
-		}
-
-		jeb->first_node = jeb->last_node = NULL;
-		jeb->free_size = c->sector_size;
-		jeb->used_size = 0;
-		jeb->dirty_size = 0;
-		jeb->wasted_size = 0;
-
-	} else {
-
-		struct kvec vecs[1];
-	#if defined (__GNUC__) 
-		struct jffs2_unknown_node marker = {
-			.magic =	cpu_to_je16(JFFS2_MAGIC_BITMASK),
-			.nodetype =	cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-			.totlen =	cpu_to_je32(c->cleanmarker_size)
-		};
-	#elif defined (MSVC)
-		struct jffs2_unknown_node marker = {
-			cpu_to_je16(JFFS2_MAGIC_BITMASK),
-			cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-			cpu_to_je32(c->cleanmarker_size),
-			0
-		};
-	#else
-	#endif
-
-		marker_ref = jffs2_alloc_raw_node_ref();
-		if (!marker_ref) {
-			printk(KERN_WARNING "Failed to allocate raw node ref for clean marker. Refiling\n");
-			goto refile;
-		}
-
-		marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4));
-
-		vecs[0].iov_base = (unsigned char *) &marker;
-		vecs[0].iov_len = sizeof(marker);
-		ret = jffs2_flash_direct_writev(c, vecs, 1, jeb->offset, &retlen);
-		
-		if (ret || retlen != sizeof(marker)) {
-			if (ret)
-				printk(KERN_WARNING "Write clean marker to block at 0x%08x failed: %d\n",
-				       jeb->offset, ret);
-			else
-				printk(KERN_WARNING "Short write to newly-erased block at 0x%08x: Wanted %zd, got %zd\n",
-				       jeb->offset, sizeof(marker), retlen);
-
-			jffs2_free_raw_node_ref(marker_ref);
-			goto filebad;
-		}
-
-		marker_ref->next_in_ino = NULL;
-		marker_ref->next_phys = NULL;
-		marker_ref->flash_offset = jeb->offset | REF_NORMAL;
-		marker_ref->__totlen = c->cleanmarker_size;
-			
-		jeb->first_node = jeb->last_node = marker_ref;
-			
-		jeb->free_size = c->sector_size - c->cleanmarker_size;
-		jeb->used_size = c->cleanmarker_size;
-		jeb->dirty_size = 0;
-		jeb->wasted_size = 0;
-	}
-
-	spin_lock(&c->erase_completion_lock);
-	c->erasing_size -= c->sector_size;
-	c->free_size += jeb->free_size;
-	c->used_size += jeb->used_size;
-
-	jffs2_dbg_acct_sanity_check_nolock(c,jeb);
-	jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
-
-	list_add_tail(&jeb->list, &c->free_list);
-	c->nr_erasing_blocks--;
-	c->nr_free_blocks++;
-	spin_unlock(&c->erase_completion_lock);
-	wake_up(&c->erase_wait);
-	return;
-
-filebad:
-	spin_lock(&c->erase_completion_lock);
-	/* Stick it on a list (any list) so erase_failed can take it
-	   right off again.  Silly, but shouldn't happen often. */
-	list_add(&jeb->list, &c->erasing_list);
-	spin_unlock(&c->erase_completion_lock);
-	jffs2_erase_failed(c, jeb, bad_offset);
-	return;
-
-refile:
-	/* Stick it back on the list from whence it came and come back later */
-	jffs2_erase_pending_trigger(c);
-	spin_lock(&c->erase_completion_lock);
-	list_add(&jeb->list, &c->erase_complete_list);
-	spin_unlock(&c->erase_completion_lock);
-	return;
-}
diff --git a/components/dfs/filesystems/jffs2/src/flashio.c b/components/dfs/filesystems/jffs2/src/flashio.c
deleted file mode 100644
index 37c332de70..0000000000
--- a/components/dfs/filesystems/jffs2/src/flashio.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by Dominic Ostrowski <dominic.ostrowski@3glab.com>
- * Contributors: David Woodhouse, Nick Garnett, Richard Panton.
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: flashio.c,v 1.1 2003/11/26 14:09:29 dwmw2 Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include "nodelist.h"
-#include <rtdevice.h>
-
-int jffs2_flash_read(struct jffs2_sb_info * c, cyg_uint32 offset,
-		const size_t size,
-		size_t * return_size,
-		unsigned char *buffer)
-{
-	uint32_t len;
-	struct super_block *sb = OFNI_BS_2SFFJ(c);
-
-	len = rt_mtd_nor_read(RT_MTD_NOR_DEVICE(sb->s_dev), offset, buffer, size);
-	if (len != size)
-		return -EIO;
-
-	* return_size = len;
-	return ENOERR;
-}
-
-int jffs2_flash_write(struct jffs2_sb_info * c,
-		cyg_uint32 offset, const size_t size,
-		size_t * return_size, unsigned char *buffer)
-{
-	uint32_t len;
-	struct super_block *sb = OFNI_BS_2SFFJ(c);
-
-	len = rt_mtd_nor_write(RT_MTD_NOR_DEVICE(sb->s_dev), offset, buffer, size);
-	if (len != size)
-		return -EIO;
-
-	* return_size = len;
-	return ENOERR;
-}
-
-int jffs2_flash_erase(struct jffs2_sb_info * c,
-		struct jffs2_eraseblock * jeb)
-{
-	rt_err_t result;
-	struct super_block *sb = OFNI_BS_2SFFJ(c);
-
-	result = rt_mtd_nor_erase_block(RT_MTD_NOR_DEVICE(sb->s_dev), jeb->offset, c->sector_size);
-	if (result != RT_EOK)
-		return -EIO;
-
-	return ENOERR;
-}
-
-int jffs2_flash_direct_writev(struct jffs2_sb_info *c,
-		const struct iovec *vecs, unsigned long count, loff_t to,
-		size_t * retlen)
-{
-	unsigned long i;
-	size_t totlen = 0, thislen;
-	int ret = 0;
-
-	for (i = 0; i < count; i++)
-	{
-		// writes need to be aligned but the data we're passed may not be
-		// Observation suggests most unaligned writes are small, so we
-		// optimize for that case.
-
-		if (((vecs[i].iov_len & (sizeof(int) - 1))) ||
-			(((unsigned long) vecs[i].iov_base & (sizeof(unsigned long) - 1))))
-		{
-			// are there iov's after this one? Or is it so much we'd need
-			// to do multiple writes anyway?
-			if ((i + 1) < count || vecs[i].iov_len > 256)
-			{
-				// cop out and malloc
-				unsigned long j;
-				ssize_t sizetomalloc = 0, totvecsize = 0;
-				char *cbuf, *cbufptr;
-
-				for (j = i; j < count; j++)
-					totvecsize += vecs[j].iov_len;
-
-				// pad up in case unaligned
-				sizetomalloc = totvecsize + sizeof(int) - 1;
-				sizetomalloc &= ~(sizeof(int) - 1);
-				cbuf = (char *) rt_malloc(sizetomalloc);
-				// malloc returns aligned memory
-				if (!cbuf)
-				{
-					ret = -ENOMEM;
-					goto writev_out;
-				}
-				cbufptr = cbuf;
-				for (j = i; j < count; j++)
-				{
-					memcpy(cbufptr, vecs[j].iov_base, vecs[j].iov_len);
-					cbufptr += vecs[j].iov_len;
-				}
-				//rt_kprintf("direct_write: offset %d, size %d\n", to, sizetomalloc);
-				ret = jffs2_flash_write(c, to, sizetomalloc, &thislen,
-						(unsigned char *) cbuf);
-				if (thislen > totvecsize) // in case it was aligned up
-					thislen = totvecsize;
-				totlen += thislen;
-				rt_free(cbuf);
-				goto writev_out;
-			}
-			else
-			{
-				// otherwise optimize for the common case
-				int buf[256/sizeof(int)]; // int, so int aligned
-				size_t lentowrite;
-
-				lentowrite = vecs[i].iov_len;
-				// pad up in case its unaligned
-				lentowrite += sizeof(int) - 1;
-				lentowrite &= ~(sizeof(int) - 1);
-				memcpy(buf, vecs[i].iov_base, lentowrite);
-
-				//rt_kprintf("direct_write: offset %d, size %d\n", to, lentowrite);
-				ret = jffs2_flash_write(c, to, lentowrite, &thislen,
-						(unsigned char *) &buf);
-				if (thislen > vecs[i].iov_len)
-					thislen = vecs[i].iov_len;
-			}
-		}
-		else
-		{
-			//rt_kprintf("direct_writev: offset %d, size %d\n", to, vecs[i].iov_len);
-			ret = jffs2_flash_write(c, to, vecs[i].iov_len, &thislen,
-					vecs[i].iov_base);
-		}
-		totlen += thislen;
-		if (ret || thislen != vecs[i].iov_len) break;
-		to += vecs[i].iov_len;
-	}
-
-writev_out:
-	if (retlen) *retlen = totlen;
-
-	return ret;
-}
diff --git a/components/dfs/filesystems/jffs2/src/fs-ecos.c b/components/dfs/filesystems/jffs2/src/fs-ecos.c
deleted file mode 100644
index 814d2e3010..0000000000
--- a/components/dfs/filesystems/jffs2/src/fs-ecos.c
+++ /dev/null
@@ -1,2174 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Free Software Foundation, Inc.
- *
- * Created by Dominic Ostrowski <dominic.ostrowski@3glab.com>
- * Contributors: David Woodhouse, Nick Garnett, Richard Panton.
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: fs-ecos.c,v 1.44 2005/07/24 15:29:57 dedekind Exp $
- *
- */
-
-#include <stdio.h>	//prife for SEEK_SET SEEK_CUR SEEK_END
-#include <linux/kernel.h>
-#include "nodelist.h"
-#include <linux/pagemap.h>
-#include <linux/crc32.h>
-#include "compr.h"
-#include <string.h>
-
-#include <rtdevice.h>
-
-//--------------------------------------------
-cyg_mtab_entry *cyg_cdir_mtab_entry = NULL;
-cyg_dir cyg_cdir_dir = CYG_DIR_NULL;
-//==========================================================================
-// Default functions
-
-__externC int cyg_fileio_enosys() { return ENOSYS; }
-__externC int cyg_fileio_erofs() { return EROFS; }
-__externC int cyg_fileio_enoerr() { return ENOERR; }
-__externC int cyg_fileio_enotdir() { return ENOTDIR; }
-
-__externC cyg_bool cyg_fileio_seltrue (struct CYG_FILE_TAG *fp, int which, CYG_ADDRWORD info)
-{ return 1; }
-
-//--------------------------------------------
-//==========================================================================
-// Forward definitions
-
-// Filesystem operations
-int jffs2_mount(cyg_fstab_entry * fste, cyg_mtab_entry * mte);
-static int jffs2_umount(cyg_mtab_entry * mte);
-int jffs2_open(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-		      int mode, cyg_file * fte);
-#ifdef CYGOPT_FS_JFFS2_WRITE
-static int jffs2_ops_unlink(cyg_mtab_entry * mte, cyg_dir dir,
-			    const char *name);
-static int jffs2_ops_mkdir(cyg_mtab_entry * mte, cyg_dir dir, const char *name);
-static int jffs2_ops_rmdir(cyg_mtab_entry * mte, cyg_dir dir, const char *name);
-static int jffs2_ops_rename(cyg_mtab_entry * mte, cyg_dir dir1,
-			    const char *name1, cyg_dir dir2, const char *name2);
-static int jffs2_ops_link(cyg_mtab_entry * mte, cyg_dir dir1, const char *name1,
-			  cyg_dir dir2, const char *name2, int type);
-#endif
-static int jffs2_opendir(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-			 cyg_file * fte);
-static int jffs2_chdir(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-		       cyg_dir * dir_out);
-static int jffs2_stat(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-		      struct stat *buf);
-static int jffs2_getinfo(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-			 int key, void *buf, int len);
-static int jffs2_setinfo(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-			 int key, void *buf, int len);
-
-// File operations
-int jffs2_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
-#ifdef CYGOPT_FS_JFFS2_WRITE
-static int jffs2_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
-#endif
-static int jffs2_fo_lseek(struct CYG_FILE_TAG *fp, off_t * pos, int whence);
-static int jffs2_fo_ioctl(struct CYG_FILE_TAG *fp, CYG_ADDRWORD com,
-			  CYG_ADDRWORD data);
-static int jffs2_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
-static int jffs2_fo_close(struct CYG_FILE_TAG *fp);
-static int jffs2_fo_fstat(struct CYG_FILE_TAG *fp, struct stat *buf);
-static int jffs2_fo_getinfo(struct CYG_FILE_TAG *fp, int key, void *buf,
-			    int len);
-static int jffs2_fo_setinfo(struct CYG_FILE_TAG *fp, int key, void *buf,
-			    int len);
-
-// Directory operations
-static int jffs2_fo_dirread(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
-static int jffs2_fo_dirlseek(struct CYG_FILE_TAG *fp, off_t * pos, int whence);
-
-
-static int jffs2_read_inode (struct _inode *inode);
-static void jffs2_clear_inode (struct _inode *inode);
-static int jffs2_truncate_file (struct _inode *inode);
-
-//==========================================================================
-// Filesystem table entries
-
-// -------------------------------------------------------------------------
-// Fstab entry.
-// This defines the entry in the filesystem table.
-// For simplicity we use _FILESYSTEM synchronization for all accesses since
-// we should never block in any filesystem operations.
-
-#ifdef CYGOPT_FS_JFFS2_WRITE
-FSTAB_ENTRY(jffs2_fste, "jffs2", 0,
-	    CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
-	    jffs2_mount,
-	    jffs2_umount,
-	    jffs2_open,
-	    jffs2_ops_unlink,
-	    jffs2_ops_mkdir,
-	    jffs2_ops_rmdir,
-	    jffs2_ops_rename,
-	    jffs2_ops_link,
-	    jffs2_opendir,
-	    jffs2_chdir, jffs2_stat, jffs2_getinfo, jffs2_setinfo);
-#else
-FSTAB_ENTRY(jffs2_fste, "jffs2", 0,
-	    CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
-	    jffs2_mount,
-	    jffs2_umount,
-	    jffs2_open,
-	    (cyg_fsop_unlink *)cyg_fileio_erofs,
-	    (cyg_fsop_mkdir *)cyg_fileio_erofs,
-	    (cyg_fsop_rmdir *)cyg_fileio_erofs,
-	    (cyg_fsop_rename *)cyg_fileio_erofs,
-	    (cyg_fsop_link *)cyg_fileio_erofs,
-	    jffs2_opendir,
-	    jffs2_chdir, jffs2_stat, jffs2_getinfo, jffs2_setinfo);
-#endif
-
-// -------------------------------------------------------------------------
-// File operations.
-// This set of file operations are used for normal open files.
-
-cyg_fileops jffs2_fileops = {
-	jffs2_fo_read,
-#ifdef CYGOPT_FS_JFFS2_WRITE
-	jffs2_fo_write,
-#else
-	(cyg_fileop_write *) cyg_fileio_erofs,
-#endif
-	jffs2_fo_lseek,
-	jffs2_fo_ioctl,
-	cyg_fileio_seltrue,
-	jffs2_fo_fsync,
-	jffs2_fo_close,
-	jffs2_fo_fstat,
-	jffs2_fo_getinfo,
-	jffs2_fo_setinfo
-};
-
-// -------------------------------------------------------------------------
-// Directory file operations.
-// This set of operations are used for open directories. Most entries
-// point to error-returning stub functions. Only the read, lseek and
-// close entries are functional.
-
-cyg_fileops jffs2_dirops = {
-	jffs2_fo_dirread,
-	(cyg_fileop_write *) cyg_fileio_enosys,
-	jffs2_fo_dirlseek,
-	(cyg_fileop_ioctl *) cyg_fileio_enosys,
-	cyg_fileio_seltrue,
-	(cyg_fileop_fsync *) cyg_fileio_enosys,
-	jffs2_fo_close,
-	(cyg_fileop_fstat *) cyg_fileio_enosys,
-	(cyg_fileop_getinfo *) cyg_fileio_enosys,
-	(cyg_fileop_setinfo *) cyg_fileio_enosys
-};
-
-//==========================================================================
-// STATIC VARIABLES !!!
-
-static unsigned char gc_buffer[PAGE_CACHE_SIZE];	//avoids malloc when user may be under memory pressure
-static unsigned char n_fs_mounted = 0;  // a counter to track the number of jffs2 instances mounted
-
-//==========================================================================
-// Directory operations
-
-struct jffs2_dirsearch {
-	struct _inode *dir;	    // directory to search
-	const unsigned char *path;  // path to follow
-	struct _inode *node;	    // Node found
-	const unsigned char *name;  // last name fragment used
-	int namelen;		    // name fragment length
-	cyg_bool last;		    // last name in path?
-};
-
-typedef struct jffs2_dirsearch jffs2_dirsearch;
-
-//==========================================================================
-// Ref count and nlink management
-
-
-// FIXME: This seems like real cruft. Wouldn't it be better just to do the
-// right thing?
-static void icache_evict(struct _inode *root_i, struct _inode *i)
-{
-	struct _inode *this = root_i, *next;
-
- restart:
-	D2(printf("icache_evict\n"));
-	// If this is an absolute search path from the root,
-	// remove all cached inodes with i_count of zero (these are only
-	// held where needed for dotdot filepaths)
-	while (this) {
-		next = this->i_cache_next;
-		if (this != i && this->i_count == 0) {
-			struct _inode *parent = this->i_parent;
-			if (this->i_cache_next)
-				this->i_cache_next->i_cache_prev = this->i_cache_prev;
-			if (this->i_cache_prev)
-				this->i_cache_prev->i_cache_next = this->i_cache_next;
-			jffs2_clear_inode(this);
-			memset(this, 0x5a, sizeof(*this));
-			rt_free(this);
-			if (parent && parent != this) {
-				parent->i_count--;
-				this = root_i;
-				goto restart;
-			}
-		}
-		this = next;
-	}
-}
-
-//==========================================================================
-// Directory search
-
-// -------------------------------------------------------------------------
-// init_dirsearch()
-// Initialize a dirsearch object to start a search
-
-static void init_dirsearch(jffs2_dirsearch * ds,
-			   struct _inode *dir, const unsigned char *name)
-{
-	D2(printf("init_dirsearch name = %s\n", name));
-	D2(printf("init_dirsearch dir = %x\n", dir));
-
-	dir->i_count++;
-	ds->dir = dir;
-	ds->path = name;
-	ds->node = dir;
-	ds->name = name;
-	ds->namelen = 0;
-	ds->last = false;
-}
-
-// -------------------------------------------------------------------------
-// find_entry()
-// Search a single directory for the next name in a path and update the
-// dirsearch object appropriately.
-
-static int find_entry(jffs2_dirsearch * ds)
-{
-	struct _inode *dir = ds->dir;
-	const unsigned char *name = ds->path;
-	const unsigned char *n = name;
-	char namelen = 0;
-	struct _inode *d;
-
-	D2(printf("find_entry\n"));
-
-	// check that we really have a directory
-	if (!S_ISDIR(dir->i_mode))
-		return ENOTDIR;
-
-	// Isolate the next element of the path name.
-	while (*n != '\0' && *n != '/')
-		n++, namelen++;
-
-	// Check if this is the last path element.
-	while( *n == '/') n++;
-	if (*n == '\0')
-		ds->last = true;
-
-	// update name in dirsearch object
-	ds->name = name;
-	ds->namelen = namelen;
-
-	if (name[0] == '.')
-		switch (namelen) {
-		default:
-			break;
-		case 2:
-			// Dot followed by not Dot, treat as any other name
-			if (name[1] != '.')
-				break;
-			// Dot Dot
-			// Move back up the search path
-			D2(printf("find_entry found ..\n"));
-			ds->dir = ds->node;
-			ds->node = ds->dir->i_parent;
-			ds->node->i_count++;
-			return ENOERR;
-		case 1:
-			// Dot is consumed
-			D2(printf("find_entry found .\n"));
-			ds->node = ds->dir;
-			ds->dir->i_count++;
-			return ENOERR;
-		}
-
-	// Here we have the name and its length set up.
-	// Search the directory for a matching entry
-
-	D2(printf("find_entry for name = %s\n", ds->path));
-	d = jffs2_lookup(dir, name, namelen);
-	D2(printf("find_entry got dir = %x\n", d));
-
-	if (d == NULL)
-		return ENOENT;
-	if (IS_ERR(d))
-		return -PTR_ERR(d);
-
-	// If it's a new directory inode, increase refcount on its parent
-	if (S_ISDIR(d->i_mode) && !d->i_parent) {
-		d->i_parent = dir;
-		dir->i_count++;
-	}
-
-	// pass back the node we have found
-	ds->node = d;
-	return ENOERR;
-
-}
-
-// -------------------------------------------------------------------------
-// jffs2_find()
-// Main interface to directory search code. This is used in all file
-// level operations to locate the object named by the pathname.
-
-// Returns with use count incremented on both the sought object and
-// the directory it was found in
-static int jffs2_find(jffs2_dirsearch * d)
-{
-	int err;
-
-	D2(printf("jffs2_find for path =%s\n", d->path));
-
-	// Short circuit empty paths
-	if (*(d->path) == '\0') {
-		d->node->i_count++;
-		return ENOERR;
-	}
-
-	// iterate down directory tree until we find the object
-	// we want.
-	for (;;) {
-		err = find_entry(d);
-
-		if (err != ENOERR)
-			return err;
-
-		if (d->last)
-			return ENOERR;
-
-		/* We're done with it, although it we found a subdir that
-		   will have caused the refcount to have been increased */
-		jffs2_iput(d->dir);
-
-		// Update dirsearch object to search next directory.
-		d->dir = d->node;
-		d->path += d->namelen;
-		while (*(d->path) == '/')
-			d->path++;	// skip dirname separators
-	}
-}
-
-//==========================================================================
-// Pathconf support
-// This function provides support for pathconf() and fpathconf().
-
-static int jffs2_pathconf(struct _inode *node, struct cyg_pathconf_info *info)
-{
-	int err = ENOERR;
-	D2(printf("jffs2_pathconf\n"));
-
-	switch (info->name) {
-	case _PC_LINK_MAX:
-		info->value = LINK_MAX;
-		break;
-
-	case _PC_MAX_CANON:
-		info->value = -1;	// not supported
-		err = EINVAL;
-		break;
-
-	case _PC_MAX_INPUT:
-		info->value = -1;	// not supported
-		err = EINVAL;
-		break;
-
-	case _PC_NAME_MAX:
-		info->value = JFFS2_NAME_MAX;
-		break;
-
-	case _PC_PATH_MAX:
-		info->value = JFFS2_PATH_MAX;
-		break;
-
-	case _PC_PIPE_BUF:
-		info->value = -1;	// not supported
-		err = EINVAL;
-		break;
-
-	case _PC_ASYNC_IO:
-		info->value = -1;	// not supported
-		err = EINVAL;
-		break;
-
-	case _PC_CHOWN_RESTRICTED:
-		info->value = -1;	// not supported
-		err = EINVAL;
-		break;
-
-	case _PC_NO_TRUNC:
-		info->value = 0;
-		break;
-
-	case _PC_PRIO_IO:
-		info->value = 0;
-		break;
-
-	case _PC_SYNC_IO:
-		info->value = 0;
-		break;
-
-	case _PC_VDISABLE:
-		info->value = -1;	// not supported
-		err = EINVAL;
-		break;
-
-	default:
-		err = EINVAL;
-		break;
-	}
-
-	return err;
-}
-
-//==========================================================================
-// Filesystem operations
-// -------------------------------------------------------------------------
-// jffs2_mount()
-// Process a mount request. This mainly creates a root for the
-// filesystem.
-static int jffs2_read_super(struct super_block *sb)
-{
-	Cyg_ErrNo err;
-	struct jffs2_sb_info *c;
-	struct rt_mtd_nor_device *device;
-	
-	c = JFFS2_SB_INFO(sb);
-	device = RT_MTD_NOR_DEVICE(sb->s_dev);
-
-	/* initialize mutex lock */
-	init_MUTEX(&c->alloc_sem);
-	init_MUTEX(&c->erase_free_sem);
-
-	/* sector size is the erase block size */
-	c->sector_size = device->block_size;
-	c->flash_size  = (device->block_end - device->block_start) * device->block_size;
-	c->cleanmarker_size = sizeof(struct jffs2_unknown_node);
-
-	err = jffs2_do_mount_fs(c);
-	if (err) return -err;
-
-	D1(printk(KERN_DEBUG "jffs2_read_super(): Getting root inode\n"));
-	sb->s_root = jffs2_iget(sb, 1);
-	if (IS_ERR(sb->s_root)) {
-		D1(printk(KERN_WARNING "get root inode failed\n"));
-		err = PTR_ERR(sb->s_root);
-		sb->s_root = NULL;
-		goto out_nodes;
-	}
-	return 0;
-
-out_nodes:
-	jffs2_free_ino_caches(c);
-	jffs2_free_raw_node_refs(c);
-	rt_free(c->blocks);
-
-	return err;
-}
-
-int jffs2_mount(cyg_fstab_entry * fste, cyg_mtab_entry * mte)
-{
-//	extern cyg_mtab_entry cyg_mtab[], cyg_mtab_end;
-	struct super_block *jffs2_sb = NULL;
-	struct jffs2_sb_info *c;
-//	cyg_mtab_entry *m;
-	cyg_io_handle_t t;
-	Cyg_ErrNo err;
-
-	D2(printf("jffs2_mount\n"));
-
-//prife
-//	err = cyg_io_lookup(mte->devname, &t);
-//	if (err != ENOERR)
-//		return -err;
-
-//	// Iterate through the mount table to see if we're mounted
-//	// FIXME: this should be done better - perhaps if the superblock
-//	// can be stored as an inode in the icache.
-//	for (m = &cyg_mtab[0]; m != &cyg_mtab_end; m++) {
-//		// stop if there are more than the configured maximum
-//		if (m - &cyg_mtab[0] >= CYGNUM_FILEIO_MTAB_MAX) {
-//			m = &cyg_mtab_end;
-//			break;
-//		}
-//		if (m->valid && strcmp(m->fsname, "jffs2") == 0 &&
-//		    strcmp(m->devname, mte->devname) == 0) {
-//			jffs2_sb = (struct super_block *) m->data;
-//		}
-//	}
-    jffs2_sb = NULL;
-	t = (cyg_io_handle_t)mte->data; //get from dfs_jffs2;
-	if (jffs2_sb == NULL) {
-		jffs2_sb = rt_malloc(sizeof (struct super_block));
-
-		if (jffs2_sb == NULL)
-			return ENOMEM;
-
-		c = JFFS2_SB_INFO(jffs2_sb);
-		memset(jffs2_sb, 0, sizeof (struct super_block));
-		jffs2_sb->s_dev = t;
-
-		c->inocache_list = rt_malloc(sizeof(struct jffs2_inode_cache *) * INOCACHE_HASHSIZE);
-		if (!c->inocache_list) {
-			rt_free(jffs2_sb);
-			return ENOMEM;
-		}
-		memset(c->inocache_list, 0, sizeof(struct jffs2_inode_cache *) * INOCACHE_HASHSIZE);
-                if (n_fs_mounted++ == 0) {
-                        jffs2_create_slab_caches(); // No error check, cannot fail
-			jffs2_compressors_init();
-		}
-
-		err = jffs2_read_super(jffs2_sb);
-
-		if (err) {
-                        if (--n_fs_mounted == 0) {
-                                jffs2_destroy_slab_caches();
-				jffs2_compressors_exit();
-			}
-
-			rt_free(jffs2_sb);
-			rt_free(c->inocache_list);
-			return err;
-		}
-
-		jffs2_sb->s_root->i_parent = jffs2_sb->s_root;	// points to itself, no dotdot paths above mountpoint
-		jffs2_sb->s_root->i_cache_prev = NULL;	// root inode, so always null
-		jffs2_sb->s_root->i_cache_next = NULL;
-		jffs2_sb->s_root->i_count = 1;	// Ensures the root inode is always in ram until umount
-
-		D2(printf("jffs2_mount erasing pending blocks\n"));
-#ifdef CYGOPT_FS_JFFS2_WRITE
-		if (!jffs2_is_readonly(c))
-		    jffs2_erase_pending_blocks(c,0);
-#endif
-#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-		jffs2_start_garbage_collect_thread(c);
-#endif
-	}
-	mte->data = (CYG_ADDRWORD) jffs2_sb;
-
-	jffs2_sb->s_mount_count++;
-	mte->root = (cyg_dir) jffs2_sb->s_root;
-	D2(printf("jffs2_mounted superblock at %x\n", mte->root));
-
-	return ENOERR;
-}
-
-extern cyg_dir cyg_cdir_dir;
-extern cyg_mtab_entry *cyg_cdir_mtab_entry;
-
-// -------------------------------------------------------------------------
-// jffs2_umount()
-// Unmount the filesystem.
-
-static int jffs2_umount(cyg_mtab_entry * mte)
-{
-	struct _inode *root = (struct _inode *) mte->root;
-	struct super_block *jffs2_sb = root->i_sb;
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(jffs2_sb);
-        struct jffs2_full_dirent *fd, *next;
-
-	D2(printf("jffs2_umount\n"));
-
-	// Only really umount if this is the only mount
-	if (jffs2_sb->s_mount_count == 1) {
-		icache_evict(root, NULL);
-		if (root->i_cache_next != NULL)	{
-			struct _inode *inode = root;
-			printf("Refuse to unmount.\n");
-			while (inode) {
-				printf("Ino #%u has use count %d\n",
-				       inode->i_ino, inode->i_count);
-				inode = inode->i_cache_next;
-			}
-			// root icount was set to 1 on mount
-			return EBUSY;
-                }
-		if (root->i_count == 2 &&
-		    cyg_cdir_mtab_entry == mte &&
-		    cyg_cdir_dir == (cyg_dir)root &&
-		    !strcmp(mte->name, "/")) {
-			/* If we were mounted on root, there's no
-			   way for the cwd to change out and free
-			   the file system for unmounting. So we hack
-			   it -- if cwd is '/' we unset it. Perhaps
-			   we should allow chdir(NULL) to unset
-			   cyg_cdir_dir? */
-			cyg_cdir_dir = CYG_DIR_NULL;
-			jffs2_iput(root);
-		}
-		/* Argh. The fileio code sets this; never clears it */
-		if (cyg_cdir_mtab_entry == mte)
-			cyg_cdir_mtab_entry = NULL;
-
-		if (root->i_count != 1) {
-			printf("Ino #1 has use count %d\n",
-			       root->i_count);
-			return EBUSY;
-		}
-#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-		jffs2_stop_garbage_collect_thread(c);
-#endif
-		jffs2_iput(root);	// Time to free the root inode
-
-		// free directory entries
-		for (fd = root->jffs2_i.dents; fd; fd = next) {
-		  next=fd->next;
-		  jffs2_free_full_dirent(fd);
-		}
-
-		rt_free(root);
-		//Clear root inode
-		//root_i = NULL;
-
-		// Clean up the super block and root inode
-		jffs2_free_ino_caches(c);
-		jffs2_free_raw_node_refs(c);
-		rt_free(c->blocks);
-		rt_free(c->inocache_list);
-		rt_free(jffs2_sb);
-		// Clear superblock & root pointer
-		mte->root = CYG_DIR_NULL;
-                mte->data = 0;
-		mte->fs->data = 0;	// fstab entry, visible to all mounts. No current mount
-		// That's all folks.
-		D2(printf("jffs2_umount No current mounts\n"));
-	} else {
-		jffs2_sb->s_mount_count--;
-        }
-        if (--n_fs_mounted == 0) {
-                jffs2_destroy_slab_caches();
-		jffs2_compressors_exit();
-	}
-	return ENOERR;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_open()
-// Open a file for reading or writing.
-
-int jffs2_open(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-		      int mode, cyg_file * file)
-{
-
-	jffs2_dirsearch ds;
-	struct _inode *node = NULL;
-	int err;
-
-	D2(printf("jffs2_open\n"));
-
-	/* If no chdir has been called and we were the first file system
-	   mounted, we get called with dir == NULL. Deal with it */
-	if (!dir)
-		dir = mte->root;
-
-#ifndef CYGOPT_FS_JFFS2_WRITE
-	if (mode & (O_CREAT|O_TRUNC|O_WRONLY))
-		return EROFS;
-#endif
-	init_dirsearch(&ds, (struct _inode *) dir,
-                       (const unsigned char *) name);
-
-	err = jffs2_find(&ds);
-
-	if (err == ENOENT) {
-#ifdef CYGOPT_FS_JFFS2_WRITE
-		if (ds.last && (mode & O_CREAT)) {
-
-			// No node there, if the O_CREAT bit is set then we must
-			// create a new one. The dir and name fields of the dirsearch
-			// object will have been updated so we know where to put it.
-
-			err = jffs2_create(ds.dir, ds.name, S_IRUGO|S_IXUGO|S_IWUSR|S_IFREG, &node);
-
-			if (err != 0) {
-                                //Possible orphaned inode on the flash - but will be gc'd
-                          	jffs2_iput(ds.dir);
-                                return -err;
-			}
-
-			err = ENOERR;
-		}
-#endif
-	} else if (err == ENOERR) {
-		// The node exists. If the O_CREAT and O_EXCL bits are set, we
-		// must fail the open.
-
-		if ((mode & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) {
-			jffs2_iput(ds.node);
-			err = EEXIST;
-		} else
-			node = ds.node;
-	}
-
-	// Finished with the directory now
-	jffs2_iput(ds.dir);
-
-	if (err != ENOERR)
-		return err;
-
-	// Check that we actually have a file here
-	if (S_ISDIR(node->i_mode)) {
-		jffs2_iput(node);
-		return EISDIR;
-	}
-
-             // If the O_TRUNC bit is set we must clean out the file data.
-	if (mode & O_TRUNC) {
-#ifdef CYGOPT_FS_JFFS2_WRITE
-             err = jffs2_truncate_file(node);
-             if (err) {
-                  jffs2_iput(node);
-                  return err;
-             }
-#else
-             jffs2_iput(node);
-             return EROFS;
-#endif
-        }
-
-	// Initialise the file object
-	file->f_flag = mode & CYG_FILE_MODE_MASK;
-	file->f_type = CYG_FILE_TYPE_FILE;
-	file->f_ops = &jffs2_fileops;
-	file->f_offset = (mode & O_APPEND) ? node->i_size : 0;
-	file->f_data = (CYG_ADDRWORD) node;
-	file->f_xops = 0;
-
-	return ENOERR;
-}
-
-#ifdef CYGOPT_FS_JFFS2_WRITE
-// -------------------------------------------------------------------------
-// jffs2_ops_unlink()
-// Remove a file link from its directory.
-
-static int jffs2_ops_unlink(cyg_mtab_entry * mte, cyg_dir dir, const char *name)
-{
-	jffs2_dirsearch ds;
-	int err;
-
-	D2(printf("jffs2_ops_unlink\n"));
-
-	init_dirsearch(&ds, (struct _inode *) dir,
-                       (const unsigned char *)name);
-
-	err = jffs2_find(&ds);
-
-	if (err != ENOERR) {
-		jffs2_iput(ds.dir);
-		return err;
-	}
-
-	// Cannot unlink directories, use rmdir() instead
-	if (S_ISDIR(ds.node->i_mode)) {
-		jffs2_iput(ds.dir);
-		jffs2_iput(ds.node);
-		return EPERM;
-	}
-
-	// Delete it from its directory
-
-	err = jffs2_unlink(ds.dir, ds.node, ds.name);
-	jffs2_iput(ds.dir);
-	jffs2_iput(ds.node);
-
-	return -err;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_ops_mkdir()
-// Create a new directory.
-
-static int jffs2_ops_mkdir(cyg_mtab_entry * mte, cyg_dir dir, const char *name)
-{
-	jffs2_dirsearch ds;
-	int err;
-
-	D2(printf("jffs2_ops_mkdir\n"));
-
-	init_dirsearch(&ds, (struct _inode *) dir,
-                       (const unsigned char *)name);
-
-	err = jffs2_find(&ds);
-
-	if (err == ENOENT) {
-		if (ds.last) {
-			// The entry does not exist, and it is the last element in
-			// the pathname, so we can create it here.
-
-			err = -jffs2_mkdir(ds.dir, ds.name, S_IRUGO|S_IXUGO|S_IWUSR);
-		}
-		// If this was not the last element, then an intermediate
-		// directory does not exist.
-	} else {
-		// If there we no error, something already exists with that
-		// name, so we cannot create another one.
-               if (err == ENOERR) {
-            		jffs2_iput(ds.node);
-                        err = EEXIST;
-               }
-	}
-	jffs2_iput(ds.dir);
-	return err;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_ops_rmdir()
-// Remove a directory.
-
-static int jffs2_ops_rmdir(cyg_mtab_entry * mte, cyg_dir dir, const char *name)
-{
-	jffs2_dirsearch ds;
-	int err;
-
-	D2(printf("jffs2_ops_rmdir\n"));
-
-	init_dirsearch(&ds, (struct _inode *) dir,
-                       (const unsigned char *)name);
-
-	err = jffs2_find(&ds);
-
-	if (err != ENOERR) {
-		jffs2_iput(ds.dir);
-		return err;
-	}
-
-	// Check that this is actually a directory.
-	if (!S_ISDIR(ds.node->i_mode)) {
-		jffs2_iput(ds.dir);
-		jffs2_iput(ds.node);
-		return EPERM;
-	}
-
-	err = jffs2_rmdir(ds.dir, ds.node, ds.name);
-
-	jffs2_iput(ds.dir);
-	jffs2_iput(ds.node);
-	return -err;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_ops_rename()
-// Rename a file/dir.
-
-static int jffs2_ops_rename(cyg_mtab_entry * mte, cyg_dir dir1,
-			    const char *name1, cyg_dir dir2, const char *name2)
-{
-	jffs2_dirsearch ds1, ds2;
-	int err;
-
-	D2(printf("jffs2_ops_rename\n"));
-
-	init_dirsearch(&ds1, (struct _inode *) dir1,
-                       (const unsigned char *)name1);
-
-	err = jffs2_find(&ds1);
-
-	if (err != ENOERR) {
-		jffs2_iput(ds1.dir);
-		return err;
-	}
-
-	init_dirsearch(&ds2, (struct _inode *) dir2,
-                       (const unsigned char *)name2);
-
-	err = jffs2_find(&ds2);
-
-	// Allow through renames to non-existent objects.
-	if (ds2.last && err == ENOENT) {
-		ds2.node = NULL;
-		err = ENOERR;
-	}
-
-	if (err != ENOERR) {
-		jffs2_iput(ds1.dir);
-		jffs2_iput(ds1.node);
-		jffs2_iput(ds2.dir);
-		return err;
-	}
-
-	// Null rename, just return
-	if (ds1.node == ds2.node) {
-		err = ENOERR;
-		goto out;
-	}
-
-	// First deal with any entry that is at the destination
-	if (ds2.node) {
-		// Check that we are renaming like-for-like
-
-		if (!S_ISDIR(ds1.node->i_mode) && S_ISDIR(ds2.node->i_mode)) {
-			err = EISDIR;
-			goto out;
-		}
-
-		if (S_ISDIR(ds1.node->i_mode) && !S_ISDIR(ds2.node->i_mode)) {
-			err = ENOTDIR;
-			goto out;
-		}
-
-		// Now delete the destination directory entry
-		/* Er, what happened to atomicity of rename()? */
-		err = -jffs2_unlink(ds2.dir, ds2.node, ds2.name);
-
-		if (err != 0)
-			goto out;
-
-	}
-	// Now we know that there is no clashing node at the destination,
-	// make a new direntry at the destination and delete the old entry
-	// at the source.
-
-	err = -jffs2_rename(ds1.dir, ds1.node, ds1.name, ds2.dir, ds2.name);
-
-	// Update directory times
-	if (!err)
-		ds1.dir->i_ctime =
-		    ds1.dir->i_mtime =
-		    ds2.dir->i_ctime = ds2.dir->i_mtime = jffs2_get_timestamp();
- out:
-	jffs2_iput(ds1.dir);
-	if (S_ISDIR(ds1.node->i_mode)) {
-		/* Renamed a directory to elsewhere... so fix up its
-		   i_parent pointer and the i_counts of its old and
-		   new parents. */
-		jffs2_iput(ds1.node->i_parent);
-		ds1.node->i_parent = ds2.dir;
-		/* We effectively increase its use count by not... */
-	} else {
-		jffs2_iput(ds2.dir); /* ... doing this */
-	}
-	jffs2_iput(ds1.node);
-	if (ds2.node)
-		jffs2_iput(ds2.node);
-
-	return err;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_ops_link()
-// Make a new directory entry for a file.
-
-static int jffs2_ops_link(cyg_mtab_entry * mte, cyg_dir dir1, const char *name1,
-			  cyg_dir dir2, const char *name2, int type)
-{
-	jffs2_dirsearch ds1, ds2;
-	int err;
-
-	D2(printf("jffs2_ops_link\n"));
-
-	// Only do hard links for now in this filesystem
-	if (type != CYG_FSLINK_HARD)
-		return EINVAL;
-
-	init_dirsearch(&ds1, (struct _inode *) dir1,
-                       (const unsigned char *) name1);
-
-	err = jffs2_find(&ds1);
-
-	if (err != ENOERR) {
-		jffs2_iput(ds1.dir);
-		return err;
-	}
-
-	init_dirsearch(&ds2, (struct _inode *) dir2,
-                       (const unsigned char *) name2);
-
-	err = jffs2_find(&ds2);
-
-	// Don't allow links to existing objects
-	if (err == ENOERR) {
-		jffs2_iput(ds1.dir);
-		jffs2_iput(ds1.node);
-		jffs2_iput(ds2.dir);
-		jffs2_iput(ds2.node);
-		return EEXIST;
-	}
-
-	// Allow through links to non-existing terminal objects
-	if (ds2.last && err == ENOENT) {
-		ds2.node = NULL;
-		err = ENOERR;
-	}
-
-	if (err != ENOERR) {
-		jffs2_iput(ds1.dir);
-		jffs2_iput(ds1.node);
-		jffs2_iput(ds2.dir);
-		return err;
-	}
-
-	// Now we know that there is no existing node at the destination,
-	// make a new direntry at the destination.
-
-	err = jffs2_link(ds1.node, ds2.dir, ds2.name);
-
-	if (err == 0)
-		ds1.node->i_ctime =
-		    ds2.dir->i_ctime = ds2.dir->i_mtime = jffs2_get_timestamp();
-
-	jffs2_iput(ds1.dir);
-	jffs2_iput(ds1.node);
-	jffs2_iput(ds2.dir);
-
-	return -err;
-}
-#endif /* CYGOPT_FS_JFFS2_WRITE */
-// -------------------------------------------------------------------------
-// jffs2_opendir()
-// Open a directory for reading.
-
-static int jffs2_opendir(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-			 cyg_file * file)
-{
-	jffs2_dirsearch ds;
-	int err;
-
-	D2(printf("jffs2_opendir\n"));
-
-	init_dirsearch(&ds, (struct _inode *) dir,
-                       (const unsigned char *) name);
-
-	err = jffs2_find(&ds);
-
-	jffs2_iput(ds.dir);
-
-	if (err != ENOERR)
-		return err;
-
-	// check it is really a directory.
-	if (!S_ISDIR(ds.node->i_mode)) {
-		jffs2_iput(ds.node);
-		return ENOTDIR;
-	}
-
-	// Initialize the file object, setting the f_ops field to a
-	// special set of file ops.
-
-	file->f_flag = 0;
-	file->f_type = CYG_FILE_TYPE_FILE;
-	file->f_ops = &jffs2_dirops;
-	file->f_offset = 0;
-	file->f_data = (CYG_ADDRWORD) ds.node;
-	file->f_xops = 0;
-
-	return ENOERR;
-
-}
-
-// -------------------------------------------------------------------------
-// jffs2_chdir()
-// Change directory support.
-
-static int jffs2_chdir(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-		       cyg_dir * dir_out)
-{
-	D2(printf("jffs2_chdir\n"));
-
-	if (dir_out != NULL) {
-		// This is a request to get a new directory pointer in
-		// *dir_out.
-
-		jffs2_dirsearch ds;
-		int err;
-
-		init_dirsearch(&ds, (struct _inode *) dir,
-                               (const unsigned char *) name);
-
-		err = jffs2_find(&ds);
-		jffs2_iput(ds.dir);
-
-		if (err != ENOERR)
-			return err;
-
-		// check it is a directory
-		if (!S_ISDIR(ds.node->i_mode)) {
-                        jffs2_iput(ds.node);
-			return ENOTDIR;
-                }
-
-		// Pass it out
-		*dir_out = (cyg_dir) ds.node;
-	} else {
-		// If no output dir is required, this means that the mte and
-		// dir arguments are the current cdir setting and we should
-		// forget this fact.
-
-		struct _inode *node = (struct _inode *) dir;
-
-		// Just decrement directory reference count.
-		jffs2_iput(node);
-	}
-
-	return ENOERR;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_stat()
-// Get struct stat info for named object.
-
-static int jffs2_stat(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-		      struct stat *buf)
-{
-	jffs2_dirsearch ds;
-	int err;
-
-	D2(printf("jffs2_stat\n"));
-
-	init_dirsearch(&ds, (struct _inode *) dir,
-                       (const unsigned char *) name);
-
-	err = jffs2_find(&ds);
-	jffs2_iput(ds.dir);
-
-	if (err != ENOERR)
-		return err;
-
-	// Fill in the status
-	buf->st_mode = ds.node->i_mode;
-	buf->st_ino = ds.node->i_ino;
-	buf->st_dev = 0;
-	buf->st_nlink = ds.node->i_nlink;
-	buf->st_uid = ds.node->i_uid;
-	buf->st_gid = ds.node->i_gid;
-	buf->st_size = ds.node->i_size;
-	buf->st_atime = ds.node->i_atime;
-	buf->st_mtime = ds.node->i_mtime;
-	buf->st_ctime = ds.node->i_ctime;
-
-	jffs2_iput(ds.node);
-
-	return ENOERR;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_getinfo()
-// Getinfo. Currently only support pathconf().
-
-static int jffs2_getinfo(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-			 int key, void *buf, int len)
-{
-	jffs2_dirsearch ds;
-	int err;
-
-	D2(printf("jffs2_getinfo\n"));
-
-	init_dirsearch(&ds, (struct _inode *) dir,
-                       (const unsigned char *) name);
-
-	err = jffs2_find(&ds);
-	jffs2_iput(ds.dir);
-
-	if (err != ENOERR)
-		return err;
-
-	switch (key) {
-	case FS_INFO_CONF:
-		err = jffs2_pathconf(ds.node, (struct cyg_pathconf_info *) buf);
-		break;
-
-	default:
-		err = EINVAL;
-	}
-
-	jffs2_iput(ds.node);
-	return err;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_setinfo()
-// Setinfo. Nothing to support here at present.
-
-static int jffs2_setinfo(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
-			 int key, void *buf, int len)
-{
-	// No setinfo keys supported at present
-
-	D2(printf("jffs2_setinfo\n"));
-
-	return EINVAL;
-}
-
-//==========================================================================
-// File operations
-
-// -------------------------------------------------------------------------
-// jffs2_fo_read()
-// Read data from the file.
-
-int jffs2_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
-{
-	struct _inode *inode = (struct _inode *) fp->f_data;
-	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
-	int i;
-	ssize_t resid = uio->uio_resid;
-	off_t pos = fp->f_offset;
-
-	down(&f->sem);
-
-	// Loop over the io vectors until there are none left
-	for (i = 0; i < uio->uio_iovcnt && pos < inode->i_size; i++) {
-		int ret;
-		cyg_iovec *iov = &uio->uio_iov[i];
-		off_t len = min(iov->iov_len, inode->i_size - pos);
-
-		D2(printf("jffs2_fo_read inode size %d\n", inode->i_size));
-
-		ret =
-		    jffs2_read_inode_range(c, f,
-					   (unsigned char *) iov->iov_base, pos,
-					   len);
-		if (ret) {
-			D1(printf
-			   ("jffs2_fo_read(): read_inode_range failed %d\n",
-			    ret));
-			uio->uio_resid = resid;
-			up(&f->sem);
-			return -ret;
-		}
-		resid -= len;
-		pos += len;
-	}
-
-	// We successfully read some data, update the node's access time
-	// and update the file offset and transfer residue.
-
-	inode->i_atime = jffs2_get_timestamp();
-
-	uio->uio_resid = resid;
-	fp->f_offset = pos;
-
-	up(&f->sem);
-
-	return ENOERR;
-}
-
-
-#ifdef CYGOPT_FS_JFFS2_WRITE
-// -------------------------------------------------------------------------
-// jffs2_fo_write()
-// Write data to file.
-static int jffs2_extend_file (struct _inode *inode, struct jffs2_raw_inode *ri,
-		       unsigned long offset)
-{
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
-	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
-	struct jffs2_full_dnode *fn;
-	uint32_t phys_ofs, alloc_len;
-	int ret = 0;
-
-	/* Make new hole frag from old EOF to new page */
-	D1(printk(KERN_DEBUG "Writing new hole frag 0x%x-0x%x between current EOF and new page\n",
-		  (unsigned int)inode->i_size, offset));
-
-	ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloc_len, ALLOC_NORMAL);
-	if (ret)
-		return ret;
-
-	down(&f->sem);
-
-	ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-	ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
-	ri->totlen = cpu_to_je32(sizeof(*ri));
-	ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
-
-	ri->version = cpu_to_je32(++f->highest_version);
-	ri->isize = cpu_to_je32(max((uint32_t)inode->i_size, offset));
-
-	ri->offset = cpu_to_je32(inode->i_size);
-	ri->dsize = cpu_to_je32(offset - inode->i_size);
-	ri->csize = cpu_to_je32(0);
-	ri->compr = JFFS2_COMPR_ZERO;
-	ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
-	ri->data_crc = cpu_to_je32(0);
-
-	fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
-	jffs2_complete_reservation(c);
-	if (IS_ERR(fn)) {
-		ret = PTR_ERR(fn);
-		up(&f->sem);
-		return ret;
-	}
-	ret = jffs2_add_full_dnode_to_inode(c, f, fn);
-	if (f->metadata) {
-		jffs2_mark_node_obsolete(c, f->metadata->raw);
-		jffs2_free_full_dnode(f->metadata);
-		f->metadata = NULL;
-	}
-	if (ret) {
-		D1(printk(KERN_DEBUG "Eep. add_full_dnode_to_inode() failed in prepare_write, returned %d\n", ret));
-		jffs2_mark_node_obsolete(c, fn->raw);
-		jffs2_free_full_dnode(fn);
-		up(&f->sem);
-		return ret;
-	}
-	inode->i_size = offset;
-	up(&f->sem);
-	return 0;
-}
-
-// jffs2_fo_open()
-// Truncate a file
-static int jffs2_truncate_file (struct _inode *inode)
-{
-     struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
-     struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
-     struct jffs2_full_dnode *new_metadata, * old_metadata;
-     struct jffs2_raw_inode *ri;
-     uint32_t phys_ofs, alloclen;
-     int err;
-
-     ri = jffs2_alloc_raw_inode();
-     if (!ri) {
-          return ENOMEM;
-     }
-     err = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL);
-
-     if (err) {
-          jffs2_free_raw_inode(ri);
-          return err;
-     }
-     down(&f->sem);
-     ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-     ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
-     ri->totlen = cpu_to_je32(sizeof(*ri));
-     ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
-
-     ri->ino = cpu_to_je32(inode->i_ino);
-     ri->version = cpu_to_je32(++f->highest_version);
-
-     ri->uid = cpu_to_je16(inode->i_uid);
-     ri->gid = cpu_to_je16(inode->i_gid);
-     ri->mode = cpu_to_jemode(inode->i_mode);
-     ri->isize = cpu_to_je32(0);
-     ri->atime = cpu_to_je32(inode->i_atime);
-     ri->mtime = cpu_to_je32(jffs2_get_timestamp());
-     ri->offset = cpu_to_je32(0);
-     ri->csize = ri->dsize = cpu_to_je32(0);
-     ri->compr = JFFS2_COMPR_NONE;
-     ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
-     ri->data_crc = cpu_to_je32(0);
-     new_metadata = jffs2_write_dnode(c, f, ri, NULL, 0,
-                                      phys_ofs, ALLOC_NORMAL);
-     if (IS_ERR(new_metadata)) {
-          jffs2_complete_reservation(c);
-          jffs2_free_raw_inode(ri);
-          up(&f->sem);
-          return PTR_ERR(new_metadata);
-     }
-
-     /* It worked. Update the inode */
-     inode->i_mtime = jffs2_get_timestamp();
-     inode->i_size = 0;
-     old_metadata = f->metadata;
-     jffs2_truncate_fragtree (c, &f->fragtree, 0);
-     f->metadata = new_metadata;
-     if (old_metadata) {
-          jffs2_mark_node_obsolete(c, old_metadata->raw);
-          jffs2_free_full_dnode(old_metadata);
-     }
-     jffs2_free_raw_inode(ri);
-
-     up(&f->sem);
-     jffs2_complete_reservation(c);
-
-     return 0;
-}
-
-static int jffs2_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
-{
-	struct _inode *inode = (struct _inode *) fp->f_data;
-	off_t pos = fp->f_offset;
-	ssize_t resid = uio->uio_resid;
-	struct jffs2_raw_inode ri;
-	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
-	int i;
-
-	// If the APPEND mode bit was supplied, force all writes to
-	// the end of the file.
-	if (fp->f_flag & CYG_FAPPEND)
-		pos = fp->f_offset = inode->i_size;
-
-	if (pos < 0)
-		return EINVAL;
-
-	memset(&ri, 0, sizeof(ri));
-
-	ri.ino = cpu_to_je32(f->inocache->ino);
-	ri.mode = cpu_to_jemode(inode->i_mode);
-	ri.uid = cpu_to_je16(inode->i_uid);
-	ri.gid = cpu_to_je16(inode->i_gid);
-	ri.atime = ri.ctime = ri.mtime = cpu_to_je32(jffs2_get_timestamp());
-
-	if (pos > inode->i_size) {
-		int err;
-		ri.version = cpu_to_je32(++f->highest_version);
-		err = jffs2_extend_file(inode, &ri, pos);
-		if (err)
-			return -err;
-	}
-	ri.isize = cpu_to_je32(inode->i_size);
-
-	// Now loop over the iovecs until they are all done, or
-	// we get an error.
-	for (i = 0; i < uio->uio_iovcnt; i++) {
-		cyg_iovec *iov = &uio->uio_iov[i];
-		unsigned char *buf = iov->iov_base;
-		off_t len = iov->iov_len;
-
-		uint32_t writtenlen;
-		int err;
-
-		D2(printf("jffs2_fo_write page_start_pos %d\n", pos));
-		D2(printf("jffs2_fo_write transfer size %d\n", len));
-
-		err = jffs2_write_inode_range(c, f, &ri, buf,
-					      pos, len, &writtenlen);
-		if (err)
-			return -err;
-
-		if (writtenlen != len)
-			return ENOSPC;
-
-		pos += len;
-		resid -= len;
-	}
-
-	// We wrote some data successfully, update the modified and access
-	// times of the inode, increase its size appropriately, and update
-	// the file offset and transfer residue.
-	inode->i_mtime = inode->i_ctime = je32_to_cpu(ri.mtime);
-	if (pos > inode->i_size)
-		inode->i_size = pos;
-
-	uio->uio_resid = resid;
-	fp->f_offset = pos;
-
-	return ENOERR;
-}
-#endif /* CYGOPT_FS_JFFS2_WRITE */
-
-// -------------------------------------------------------------------------
-// jffs2_fo_lseek()
-// Seek to a new file position.
-
-static int jffs2_fo_lseek(struct CYG_FILE_TAG *fp, off_t * apos, int whence)
-{
-	struct _inode *node = (struct _inode *) fp->f_data;
-	off_t pos = *apos;
-
-	D2(printf("jffs2_fo_lseek\n"));
-
-	switch (whence) {
-	case SEEK_SET:
-		// Pos is already where we want to be.
-		break;
-
-	case SEEK_CUR:
-		// Add pos to current offset.
-		pos += fp->f_offset;
-		break;
-
-	case SEEK_END:
-		// Add pos to file size.
-		pos += node->i_size;
-		break;
-
-	default:
-		return EINVAL;
-	}
-
-        if (pos < 0 )
-                return EINVAL;
-
-	// All OK, set fp offset and return new position.
-	*apos = fp->f_offset = pos;
-
-	return ENOERR;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_fo_ioctl()
-// Handle ioctls. Currently none are defined.
-
-static int jffs2_fo_ioctl(struct CYG_FILE_TAG *fp, CYG_ADDRWORD com,
-			  CYG_ADDRWORD data)
-{
-	// No Ioctls currenly defined.
-
-	D2(printf("jffs2_fo_ioctl\n"));
-
-	return EINVAL;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_fo_fsync().
-// Force the file out to data storage.
-
-static int jffs2_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
-{
-	// Data is always permanently where it belongs, nothing to do
-	// here.
-
-	D2(printf("jffs2_fo_fsync\n"));
-
-	return ENOERR;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_fo_close()
-// Close a file. We just decrement the refcnt and let it go away if
-// that is all that is keeping it here.
-
-static int jffs2_fo_close(struct CYG_FILE_TAG *fp)
-{
-	struct _inode *node = (struct _inode *) fp->f_data;
-
-	D2(printf("jffs2_fo_close\n"));
-
-	jffs2_iput(node);
-
-	fp->f_data = 0;		// zero data pointer
-
-	return ENOERR;
-}
-
-// -------------------------------------------------------------------------
-//jffs2_fo_fstat()
-// Get file status.
-
-static int jffs2_fo_fstat(struct CYG_FILE_TAG *fp, struct stat *buf)
-{
-	struct _inode *node = (struct _inode *) fp->f_data;
-
-	D2(printf("jffs2_fo_fstat\n"));
-
-	// Fill in the status
-	buf->st_mode = node->i_mode;
-	buf->st_ino = node->i_ino;
-	buf->st_dev = 0;
-	buf->st_nlink = node->i_nlink;
-	buf->st_uid = node->i_uid;
-	buf->st_gid = node->i_gid;
-	buf->st_size = node->i_size;
-	buf->st_atime = node->i_atime;
-	buf->st_mtime = node->i_mtime;
-	buf->st_ctime = node->i_ctime;
-
-	return ENOERR;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_fo_getinfo()
-// Get info. Currently only supports fpathconf().
-
-static int jffs2_fo_getinfo(struct CYG_FILE_TAG *fp, int key, void *buf,
-			    int len)
-{
-	struct _inode *node = (struct _inode *) fp->f_data;
-	int err;
-
-	D2(printf("jffs2_fo_getinfo\n"));
-
-	switch (key) {
-	case FS_INFO_CONF:
-		err = jffs2_pathconf(node, (struct cyg_pathconf_info *) buf);
-		break;
-
-	default:
-		err = EINVAL;
-	}
-	return err;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_fo_setinfo()
-// Set info. Nothing supported here.
-
-static int jffs2_fo_setinfo(struct CYG_FILE_TAG *fp, int key, void *buf,
-			    int len)
-{
-	// No setinfo key supported at present
-
-	D2(printf("jffs2_fo_setinfo\n"));
-
-	return ENOERR;
-}
-
-//==========================================================================
-// Directory operations
-
-// -------------------------------------------------------------------------
-// jffs2_fo_dirread()
-// Read a single directory entry from a file.
-
-static __inline void filldir(char *nbuf, int nlen, const unsigned char *name, int namlen)
-{
-	int len = nlen < namlen ? nlen : namlen;
-	memcpy(nbuf, name, len);
-	nbuf[len] = '\0';
-}
-
-static int jffs2_fo_dirread(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
-{
-	struct _inode *d_inode = (struct _inode *) fp->f_data;
-	struct dirent *ent = (struct dirent *) uio->uio_iov[0].iov_base;
-	char *nbuf = ent->d_name;
-#ifdef CYGPKG_FS_JFFS2_RET_DIRENT_DTYPE
-	struct _inode *c_ino;
-#endif
-	int nlen = sizeof (ent->d_name) - 1;
-	off_t len = uio->uio_iov[0].iov_len;
-	struct jffs2_inode_info *f;
-	struct _inode *inode = d_inode;
-	struct jffs2_full_dirent *fd;
-	unsigned long offset, curofs;
-	int found = 1;
-
-	if (len < sizeof (struct dirent))
-		return EINVAL;
-
-	D1(printk
-	   (KERN_DEBUG "jffs2_readdir() for dir_i #%lu\n", d_inode->i_ino));
-
-	f = JFFS2_INODE_INFO(inode);
-
-	offset = fp->f_offset;
-
-	if (offset == 0) {
-		D1(printk
-		   (KERN_DEBUG "Dirent 0: \".\", ino #%lu\n", inode->i_ino));
-		filldir(nbuf, nlen, (const unsigned char *) ".", 1);
-#ifdef CYGPKG_FS_JFFS2_RET_DIRENT_DTYPE
- 		// Flags here are the same as jffs2_mkdir. Make sure
-                // d_type is the same as st_mode of calling stat.
-                ent->d_type =
-                  jemode_to_cpu(cpu_to_jemode(S_IRUGO|S_IXUGO|S_IWUSR|S_IFDIR));
-#endif
-                goto out;
-	}
-	if (offset == 1) {
-		filldir(nbuf, nlen, (const unsigned char *) "..", 2);
-#ifdef CYGPKG_FS_JFFS2_RET_DIRENT_DTYPE
-                // Flags here are the same as jffs2_mkdir. Make sure
-                // d_type is the same as st_mode of calling stat.
-                ent->d_type =
-                  jemode_to_cpu(cpu_to_jemode(S_IRUGO|S_IXUGO|S_IWUSR|S_IFDIR));
-#endif
-                goto out;
-	}
-
-	curofs = 1;
-	down(&f->sem);
-	for (fd = f->dents; fd; fd = fd->next) {
-
-		curofs++;
-		/* First loop: curofs = 2; offset = 2 */
-		if (curofs < offset) {
-			D2(printk
-			   (KERN_DEBUG
-			    "Skipping dirent: \"%s\", ino #%u, type %d, because curofs %ld < offset %ld\n",
-			    fd->name, fd->ino, fd->type, curofs, offset));
-			continue;
-		}
-		if (!fd->ino) {
-			D2(printk
-			   (KERN_DEBUG "Skipping deletion dirent \"%s\"\n",
-			    fd->name));
-			offset++;
-			continue;
-		}
-		D2(printk
-		   (KERN_DEBUG "Dirent %ld: \"%s\", ino #%u, type %d\n", offset,
-		    fd->name, fd->ino, fd->type));
-		filldir(nbuf, nlen, fd->name, strlen((char *)fd->name));
-#ifdef CYGPKG_FS_JFFS2_RET_DIRENT_DTYPE
-		c_ino = jffs2_iget(inode->i_sb, fd->ino);
-		if(IS_ERR(c_ino)) {
-			D1(printk(KERN_WARNING "get entry inode failed\n"));
-			// fileio already set it to zero, so not needed here
-			// ent->d_type = 0;
-		}
-		else {
-			ent->d_type = c_ino->i_mode;
-			jffs2_iput(c_ino);
-		}
-#endif
-		goto out_sem;
-	}
-	/* Reached the end of the directory */
-	found = 0;
-      out_sem:
-	up(&f->sem);
-      out:
-	fp->f_offset = ++offset;
-	if (found) {
-		uio->uio_resid -= sizeof (struct dirent);
-	}
-	return ENOERR;
-}
-
-// -------------------------------------------------------------------------
-// jffs2_fo_dirlseek()
-// Seek directory to start.
-
-static int jffs2_fo_dirlseek(struct CYG_FILE_TAG *fp, off_t * pos, int whence)
-{
-	// Only allow SEEK_SET to zero
-
-	D2(printf("jffs2_fo_dirlseek\n"));
-
-	if (whence != SEEK_SET || *pos != 0)
-		return EINVAL;
-
-	*pos = fp->f_offset = 0;
-
-	return ENOERR;
-}
-
-//==========================================================================
-//
-// Called by JFFS2
-// ===============
-//
-//
-//==========================================================================
-
-unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
-				   struct jffs2_inode_info *f,
-				   unsigned long offset,
-				   unsigned long *priv)
-{
-	/* FIXME: This works only with one file system mounted at a time */
-	int ret;
-
-	ret = jffs2_read_inode_range(c, f, gc_buffer,
-				     offset & ~(PAGE_CACHE_SIZE-1), PAGE_CACHE_SIZE);
-	if (ret)
-		return ERR_PTR(ret);
-
-	return gc_buffer;
-}
-
-void jffs2_gc_release_page(struct jffs2_sb_info *c,
-			   unsigned char *ptr,
-			   unsigned long *priv)
-{
-	/* Do nothing */
-}
-
-static struct _inode *new_inode(struct super_block *sb)
-{
-	struct _inode *inode;
-	struct _inode *cached_inode;
-
-	inode = rt_malloc(sizeof (struct _inode));
-	if (inode == NULL)
-		return 0;
-
-	D2(printf("malloc new_inode %x ####################################\n",
-	    inode));
-
-	memset(inode, 0, sizeof (struct _inode));
-	inode->i_sb = sb;
-	inode->i_ino = 1;
-	inode->i_count = 1;
-	inode->i_nlink = 1;	// Let JFFS2 manage the link count
-	inode->i_size = 0;
-
-	inode->i_cache_next = NULL;	// Newest inode, about to be cached
-
-	// Add to the icache
-	for (cached_inode = sb->s_root; cached_inode != NULL;
-	     cached_inode = cached_inode->i_cache_next) {
-		if (cached_inode->i_cache_next == NULL) {
-			cached_inode->i_cache_next = inode;	// Current last in cache points to newcomer
-			inode->i_cache_prev = cached_inode;	// Newcomer points back to last
-			break;
-		}
-	}
-	return inode;
-}
-
-static struct _inode *ilookup(struct super_block *sb, cyg_uint32 ino)
-{
-	struct _inode *inode = NULL;
-
-	D2(printf("ilookup\n"));
-	// Check for this inode in the cache
-	for (inode = sb->s_root; inode != NULL; inode = inode->i_cache_next) {
-		if (inode->i_ino == ino) {
-			inode->i_count++;
-			break;
-		}
-	}
-	return inode;
-}
-
-struct _inode *jffs2_iget(struct super_block *sb, cyg_uint32 ino)
-{
-	// Called in super.c jffs2_read_super, dir.c jffs2_lookup,
-	// and gc.c jffs2_garbage_collect_pass
-
-	// Must first check for cached inode
-	// If this fails let new_inode create one
-
-	struct _inode *inode;
-	int err;
-
-	D2(printf("jffs2_iget\n"));
-
-	inode = ilookup(sb, ino);
-	if (inode)
-		return inode;
-
-	// Not cached, so malloc it
-	inode = new_inode(sb);
-	if (inode == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	inode->i_ino = ino;
-
-	err = jffs2_read_inode(inode);
-	if (err) {
-		printf("jffs2_read_inode() failed\n");
-                inode->i_nlink = 0; // free _this_ bad inode right now
-		jffs2_iput(inode);
-		inode = NULL;
-		return ERR_PTR(err);
-	}
-	return inode;
-}
-
-// -------------------------------------------------------------------------
-// Decrement the reference count on an inode. If this makes the ref count
-// zero, then this inode can be freed.
-
-void jffs2_iput(struct _inode *i)
-{
-	// Called in jffs2_find
-	// (and jffs2_open and jffs2_ops_mkdir?)
-	// super.c jffs2_read_super,
-	// and gc.c jffs2_garbage_collect_pass
- recurse:
-	if (!i) {
-		printf("jffs2_iput() called with NULL inode\n");
-		// and let it fault...
-	}
-
-	i->i_count--;
-
-	if (i->i_count < 0)
-		BUG();
-
-	if (i->i_count)
-                return;
-
-	if (!i->i_nlink) {
-		struct _inode *parent;
-
-		// Remove from the icache linked list and free immediately
-		if (i->i_cache_prev)
-			i->i_cache_prev->i_cache_next = i->i_cache_next;
-		if (i->i_cache_next)
-			i->i_cache_next->i_cache_prev = i->i_cache_prev;
-
-		parent = i->i_parent;
-		jffs2_clear_inode(i);
-		memset(i, 0x5a, sizeof(*i));
-		rt_free(i);
-
-		if (parent && parent != i) {
-			i = parent;
-			goto recurse;
-		}
-
-	} else {
-		// Evict some _other_ inode with i_count zero, leaving
-		// this latest one in the cache for a while
-		icache_evict(i->i_sb->s_root, i);
-	}
-}
-
-
-// -------------------------------------------------------------------------
-// EOF jffs2.c
-
-
-static inline void jffs2_init_inode_info(struct jffs2_inode_info *f)
-{
-	memset(f, 0, sizeof(*f));
-	init_MUTEX_LOCKED(&f->sem);
-}
-
-static void jffs2_clear_inode (struct _inode *inode)
-{
-        /* We can forget about this inode for now - drop all
-         *  the nodelists associated with it, etc.
-         */
-        struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
-        struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
-
-        D1(printk(KERN_DEBUG "jffs2_clear_inode(): ino #%lu mode %o\n", inode->i_ino, inode->i_mode));
-
-        jffs2_do_clear_inode(c, f);
-}
-
-
-/* jffs2_new_inode: allocate a new inode and inocache, add it to the hash,
-   fill in the raw_inode while you're at it. */
-struct _inode *jffs2_new_inode (struct _inode *dir_i, int mode, struct jffs2_raw_inode *ri)
-{
-	struct _inode *inode;
-	struct super_block *sb = dir_i->i_sb;
-	struct jffs2_sb_info *c;
-	struct jffs2_inode_info *f;
-	int ret;
-
-	D1(printk(KERN_DEBUG "jffs2_new_inode(): dir_i %ld, mode 0x%x\n", dir_i->i_ino, mode));
-
-	c = JFFS2_SB_INFO(sb);
-
-	inode = new_inode(sb);
-
-	if (!inode)
-		return ERR_PTR(-ENOMEM);
-
-	f = JFFS2_INODE_INFO(inode);
-	jffs2_init_inode_info(f);
-
-	memset(ri, 0, sizeof(*ri));
-	/* Set OS-specific defaults for new inodes */
-	ri->uid = ri->gid = cpu_to_je16(0);
-	ri->mode =  cpu_to_jemode(mode);
-	ret = jffs2_do_new_inode (c, f, mode, ri);
-	if (ret) {
-                // forceful evict: f->sem is locked already, and the
-                // inode is bad.
-                if (inode->i_cache_prev)
-                       inode->i_cache_prev->i_cache_next = inode->i_cache_next;
-                if (inode->i_cache_next)
-                       inode->i_cache_next->i_cache_prev = inode->i_cache_prev;
-                up(&(f->sem));
-                jffs2_clear_inode(inode);
-                memset(inode, 0x6a, sizeof(*inode));
-                rt_free(inode);
-                return ERR_PTR(ret);
-	}
-	inode->i_nlink = 1;
-	inode->i_ino = je32_to_cpu(ri->ino);
-	inode->i_mode = jemode_to_cpu(ri->mode);
-	inode->i_gid = je16_to_cpu(ri->gid);
-	inode->i_uid = je16_to_cpu(ri->uid);
-	inode->i_atime = inode->i_ctime = inode->i_mtime = jffs2_get_timestamp();
-	ri->atime = ri->mtime = ri->ctime = cpu_to_je32(inode->i_mtime);
-
-	inode->i_size = 0;
-
-	return inode;
-}
-
-
-static int jffs2_read_inode (struct _inode *inode)
-{
-	struct jffs2_inode_info *f;
-	struct jffs2_sb_info *c;
-	struct jffs2_raw_inode latest_node;
-	int ret;
-
-	D1(printk(KERN_DEBUG "jffs2_read_inode(): inode->i_ino == %lu\n", inode->i_ino));
-
-	f = JFFS2_INODE_INFO(inode);
-	c = JFFS2_SB_INFO(inode->i_sb);
-
-	jffs2_init_inode_info(f);
-
-	ret = jffs2_do_read_inode(c, f, inode->i_ino, &latest_node);
-
-	if (ret) {
-		up(&f->sem);
-		return ret;
-	}
-	inode->i_mode = jemode_to_cpu(latest_node.mode);
-	inode->i_uid = je16_to_cpu(latest_node.uid);
-	inode->i_gid = je16_to_cpu(latest_node.gid);
-	inode->i_size = je32_to_cpu(latest_node.isize);
-	inode->i_atime = je32_to_cpu(latest_node.atime);
-	inode->i_mtime = je32_to_cpu(latest_node.mtime);
-	inode->i_ctime = je32_to_cpu(latest_node.ctime);
-
-	inode->i_nlink = f->inocache->nlink;
-	up(&f->sem);
-
-	D1(printk(KERN_DEBUG "jffs2_read_inode() returning\n"));
-	return 0;
-}
-
-
-void jffs2_gc_release_inode(struct jffs2_sb_info *c,
-				   struct jffs2_inode_info *f)
-{
-	jffs2_iput(OFNI_EDONI_2SFFJ(f));
-}
-
-struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c,
-						     int inum, int nlink)
-{
-	struct _inode *inode;
-	struct jffs2_inode_cache *ic;
-	if (!nlink) {
-		/* The inode has zero nlink but its nodes weren't yet marked
-		   obsolete. This has to be because we're still waiting for
-		   the final (close() and) jffs2_iput() to happen.
-
-		   There's a possibility that the final jffs2_iput() could have
-		   happened while we were contemplating. In order to ensure
-		   that we don't cause a new read_inode() (which would fail)
-		   for the inode in question, we use ilookup() in this case
-		   instead of jffs2_iget().
-
-		   The nlink can't _become_ zero at this point because we're
-		   holding the alloc_sem, and jffs2_do_unlink() would also
-		   need that while decrementing nlink on any inode.
-		*/
-		inode = ilookup(OFNI_BS_2SFFJ(c), inum);
-		if (!inode) {
-			D1(printk(KERN_DEBUG "ilookup() failed for ino #%u; inode is probably deleted.\n",
-				  inum));
-
-			spin_lock(&c->inocache_lock);
-			ic = jffs2_get_ino_cache(c, inum);
-			if (!ic) {
-				D1(printk(KERN_DEBUG "Inode cache for ino #%u is gone.\n", inum));
-				spin_unlock(&c->inocache_lock);
-				return NULL;
-			}
-			if (ic->state != INO_STATE_CHECKEDABSENT) {
-				/* Wait for progress. Don't just loop */
-				D1(printk(KERN_DEBUG "Waiting for ino #%u in state %d\n",
-					  ic->ino, ic->state));
-				sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
-			} else {
-				spin_unlock(&c->inocache_lock);
-			}
-
-			return NULL;
-		}
-	} else {
-		/* Inode has links to it still; they're not going away because
-		   jffs2_do_unlink() would need the alloc_sem and we have it.
-		   Just jffs2_iget() it, and if read_inode() is necessary that's OK.
-		*/
-		inode = jffs2_iget(OFNI_BS_2SFFJ(c), inum);
-		if (IS_ERR(inode))
-			return (void *)inode;
-	}
-
-	return JFFS2_INODE_INFO(inode);
-}
-
-
-
-uint32_t jffs2_from_os_mode(uint32_t osmode)
-{
-	uint32_t jmode = ((osmode & S_IRUSR)?00400:0) |
-		((osmode & S_IWUSR)?00200:0) |
-		((osmode & S_IXUSR)?00100:0) |
-		((osmode & S_IRGRP)?00040:0) |
-		((osmode & S_IWGRP)?00020:0) |
-		((osmode & S_IXGRP)?00010:0) |
-		((osmode & S_IROTH)?00004:0) |
-		((osmode & S_IWOTH)?00002:0) |
-		((osmode & S_IXOTH)?00001:0);
-
-	switch (osmode & S_IFMT) {
-//	case S_IFSOCK:
-//		return jmode | 0140000;
-//	case S_IFLNK:
-//		return jmode | 0120000;
-	case S_IFREG:
-		return jmode | 0100000;
-	case S_IFBLK:
-		return jmode | 0060000;
-	case S_IFDIR:
-		return jmode | 0040000;
-	case S_IFCHR:
-		return jmode | 0020000;
-	case S_IFIFO:
-		return jmode | 0010000;
-	case S_ISUID:
-		return jmode | 0004000;
-	case S_ISGID:
-		return jmode | 0002000;
-#ifdef S_ISVTX
-	case S_ISVTX:
-		return jmode | 0001000;
-#endif
-	}
-	printf("os_to_jffs2_mode() cannot convert 0x%x\n", osmode);
-	BUG();
-	return 0;
-}
-
-uint32_t jffs2_to_os_mode (uint32_t jmode)
-{
-	uint32_t osmode = ((jmode & 00400)?S_IRUSR:0) |
-		((jmode & 00200)?S_IWUSR:0) |
-		((jmode & 00100)?S_IXUSR:0) |
-		((jmode & 00040)?S_IRGRP:0) |
-		((jmode & 00020)?S_IWGRP:0) |
-		((jmode & 00010)?S_IXGRP:0) |
-		((jmode & 00004)?S_IROTH:0) |
-		((jmode & 00002)?S_IWOTH:0) |
-		((jmode & 00001)?S_IXOTH:0);
-
-	switch(jmode & 00170000) {
-//	case 0140000:                       prife
-//		return osmode | S_IFSOCK;       prife
-//	case 0120000:                       prife
-//		return osmode | S_IFLNK;        prife
-	case 0100000:
-		return osmode | S_IFREG;
-	case 0060000:
-		return osmode | S_IFBLK;
-	case 0040000:
-		return osmode | S_IFDIR;
-	case 0020000:
-		return osmode | S_IFCHR;
-	case 0010000:
-		return osmode | S_IFIFO;
-	case 0004000:
-		return osmode | S_ISUID;
-	case 0002000:
-		return osmode | S_ISGID;
-#ifdef S_ISVTX
-	case 0001000:
-		return osmode | S_ISVTX;
-#endif
-	}
-	printf("jffs2_to_os_mode() cannot convert 0x%x\n", osmode);
-	BUG();
-	return 0;
-}
diff --git a/components/dfs/filesystems/jffs2/src/gc.c b/components/dfs/filesystems/jffs2/src/gc.c
deleted file mode 100644
index 34ad6ca547..0000000000
--- a/components/dfs/filesystems/jffs2/src/gc.c
+++ /dev/null
@@ -1,1271 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: gc.c,v 1.152 2005/07/24 15:14:14 dedekind Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/mtd/mtd.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/crc32.h>
-#include <linux/compiler.h>
-#include <linux/stat.h>
-#include "nodelist.h"
-#include "compr.h"
-
-static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
-					  struct jffs2_inode_cache *ic,
-					  struct jffs2_raw_node_ref *raw);
-static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-					struct jffs2_inode_info *f, struct jffs2_full_dnode *fd);
-static int jffs2_garbage_collect_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-					struct jffs2_inode_info *f, struct jffs2_full_dirent *fd);
-static int jffs2_garbage_collect_deletion_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-					struct jffs2_inode_info *f, struct jffs2_full_dirent *fd);
-static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-				      struct jffs2_inode_info *f, struct jffs2_full_dnode *fn,
-				      uint32_t start, uint32_t end);
-static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-				       struct jffs2_inode_info *f, struct jffs2_full_dnode *fn,
-				       uint32_t start, uint32_t end);
-static int jffs2_garbage_collect_live(struct jffs2_sb_info *c,  struct jffs2_eraseblock *jeb,
-			       struct jffs2_raw_node_ref *raw, struct jffs2_inode_info *f);
-
-/* Called with erase_completion_lock held */
-static struct jffs2_eraseblock *jffs2_find_gc_block(struct jffs2_sb_info *c)
-{
-	struct jffs2_eraseblock *ret;
-	struct list_head *nextlist = NULL;
-	int n = jiffies % 128;
-
-	/* Pick an eraseblock to garbage collect next. This is where we'll
-	   put the clever wear-levelling algorithms. Eventually.  */
-	/* We possibly want to favour the dirtier blocks more when the
-	   number of free blocks is low. */
-again:
-	if (!list_empty(&c->bad_used_list) && c->nr_free_blocks > c->resv_blocks_gcbad) {
-		D1(printk(KERN_DEBUG "Picking block from bad_used_list to GC next\n"));
-		nextlist = &c->bad_used_list;
-	} else if (n < 50 && !list_empty(&c->erasable_list)) {
-		/* Note that most of them will have gone directly to be erased.
-		   So don't favour the erasable_list _too_ much. */
-		D1(printk(KERN_DEBUG "Picking block from erasable_list to GC next\n"));
-		nextlist = &c->erasable_list;
-	} else if (n < 110 && !list_empty(&c->very_dirty_list)) {
-		/* Most of the time, pick one off the very_dirty list */
-		D1(printk(KERN_DEBUG "Picking block from very_dirty_list to GC next\n"));
-		nextlist = &c->very_dirty_list;
-	} else if (n < 126 && !list_empty(&c->dirty_list)) {
-		D1(printk(KERN_DEBUG "Picking block from dirty_list to GC next\n"));
-		nextlist = &c->dirty_list;
-	} else if (!list_empty(&c->clean_list)) {
-		D1(printk(KERN_DEBUG "Picking block from clean_list to GC next\n"));
-		nextlist = &c->clean_list;
-	} else if (!list_empty(&c->dirty_list)) {
-		D1(printk(KERN_DEBUG "Picking block from dirty_list to GC next (clean_list was empty)\n"));
-
-		nextlist = &c->dirty_list;
-	} else if (!list_empty(&c->very_dirty_list)) {
-		D1(printk(KERN_DEBUG "Picking block from very_dirty_list to GC next (clean_list and dirty_list were empty)\n"));
-		nextlist = &c->very_dirty_list;
-	} else if (!list_empty(&c->erasable_list)) {
-		D1(printk(KERN_DEBUG "Picking block from erasable_list to GC next (clean_list and {very_,}dirty_list were empty)\n"));
-
-		nextlist = &c->erasable_list;
-	} else if (!list_empty(&c->erasable_pending_wbuf_list)) {
-		/* There are blocks are wating for the wbuf sync */
-		D1(printk(KERN_DEBUG "Synching wbuf in order to reuse erasable_pending_wbuf_list blocks\n"));
-		spin_unlock(&c->erase_completion_lock);
-		jffs2_flush_wbuf_pad(c);
-		spin_lock(&c->erase_completion_lock);
-		goto again;
-	} else {
-		/* Eep. All were empty */
-		D1(printk(KERN_NOTICE "jffs2: No clean, dirty _or_ erasable blocks to GC from! Where are they all?\n"));
-		return NULL;
-	}
-
-	ret = list_entry(nextlist->next, struct jffs2_eraseblock, list);
-	list_del(&ret->list);
-	c->gcblock = ret;
-	ret->gc_node = ret->first_node;
-	if (!ret->gc_node) {
-		printk(KERN_WARNING "Eep. ret->gc_node for block at 0x%08x is NULL\n", ret->offset);
-		BUG();
-	}
-
-	/* Have we accidentally picked a clean block with wasted space ? */
-	if (ret->wasted_size) {
-		D1(printk(KERN_DEBUG "Converting wasted_size %08x to dirty_size\n", ret->wasted_size));
-		ret->dirty_size += ret->wasted_size;
-		c->wasted_size -= ret->wasted_size;
-		c->dirty_size += ret->wasted_size;
-		ret->wasted_size = 0;
-	}
-
-	return ret;
-}
-
-/* jffs2_garbage_collect_pass
- * Make a single attempt to progress GC. Move one node, and possibly
- * start erasing one eraseblock.
- */
-int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
-{
-	struct jffs2_inode_info *f;
-	struct jffs2_inode_cache *ic;
-	struct jffs2_eraseblock *jeb;
-	struct jffs2_raw_node_ref *raw;
-	int ret = 0, inum, nlink;
-
-	if (down_interruptible(&c->alloc_sem))
-		return -EINTR;
-
-	for (;;) {
-		spin_lock(&c->erase_completion_lock);
-		if (!c->unchecked_size)
-			break;
-
-		/* We can't start doing GC yet. We haven't finished checking
-		   the node CRCs etc. Do it now. */
-
-		/* checked_ino is protected by the alloc_sem */
-		if (c->checked_ino > c->highest_ino) {
-			printk(KERN_CRIT "Checked all inodes but still 0x%x bytes of unchecked space?\n",
-			       c->unchecked_size);
-			jffs2_dbg_dump_block_lists_nolock(c);
-			spin_unlock(&c->erase_completion_lock);
-			BUG();
-		}
-
-		spin_unlock(&c->erase_completion_lock);
-
-		spin_lock(&c->inocache_lock);
-
-		ic = jffs2_get_ino_cache(c, c->checked_ino++);
-
-		if (!ic) {
-			spin_unlock(&c->inocache_lock);
-			continue;
-		}
-
-		if (!ic->nlink) {
-			D1(printk(KERN_DEBUG "Skipping check of ino #%d with nlink zero\n",
-				  ic->ino));
-			spin_unlock(&c->inocache_lock);
-			continue;
-		}
-		switch(ic->state) {
-		case INO_STATE_CHECKEDABSENT:
-		case INO_STATE_PRESENT:
-			D1(printk(KERN_DEBUG "Skipping ino #%u already checked\n", ic->ino));
-			spin_unlock(&c->inocache_lock);
-			continue;
-
-		case INO_STATE_GC:
-		case INO_STATE_CHECKING:
-			printk(KERN_WARNING "Inode #%u is in state %d during CRC check phase!\n", ic->ino, ic->state);
-			spin_unlock(&c->inocache_lock);
-			BUG();
-
-		case INO_STATE_READING:
-			/* We need to wait for it to finish, lest we move on
-			   and trigger the BUG() above while we haven't yet
-			   finished checking all its nodes */
-			D1(printk(KERN_DEBUG "Waiting for ino #%u to finish reading\n", ic->ino));
-			up(&c->alloc_sem);
-			sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
-			return 0;
-
-		default:
-			BUG();
-
-		case INO_STATE_UNCHECKED:
-			;
-		}
-		ic->state = INO_STATE_CHECKING;
-		spin_unlock(&c->inocache_lock);
-
-		D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass() triggering inode scan of ino#%u\n", ic->ino));
-
-		ret = jffs2_do_crccheck_inode(c, ic);
-		if (ret)
-			printk(KERN_WARNING "Returned error for crccheck of ino #%u. Expect badness...\n", ic->ino);
-
-		jffs2_set_inocache_state(c, ic, INO_STATE_CHECKEDABSENT);
-		up(&c->alloc_sem);
-		return ret;
-	}
-
-	/* First, work out which block we're garbage-collecting */
-	jeb = c->gcblock;
-
-	if (!jeb)
-		jeb = jffs2_find_gc_block(c);
-
-	if (!jeb) {
-		D1 (printk(KERN_NOTICE "jffs2: Couldn't find erase block to garbage collect!\n"));
-		spin_unlock(&c->erase_completion_lock);
-		up(&c->alloc_sem);
-		return -EIO;
-	}
-
-	D1(printk(KERN_DEBUG "GC from block %08x, used_size %08x, dirty_size %08x, free_size %08x\n", jeb->offset, jeb->used_size, jeb->dirty_size, jeb->free_size));
-	D1(if (c->nextblock)
-	   printk(KERN_DEBUG "Nextblock at  %08x, used_size %08x, dirty_size %08x, wasted_size %08x, free_size %08x\n", c->nextblock->offset, c->nextblock->used_size, c->nextblock->dirty_size, c->nextblock->wasted_size, c->nextblock->free_size));
-
-	if (!jeb->used_size) {
-		up(&c->alloc_sem);
-		goto eraseit;
-	}
-
-	raw = jeb->gc_node;
-
-	while(ref_obsolete(raw)) {
-		D1(printk(KERN_DEBUG "Node at 0x%08x is obsolete... skipping\n", ref_offset(raw)));
-		raw = raw->next_phys;
-		if (unlikely(!raw)) {
-			printk(KERN_WARNING "eep. End of raw list while still supposedly nodes to GC\n");
-			printk(KERN_WARNING "erase block at 0x%08x. free_size 0x%08x, dirty_size 0x%08x, used_size 0x%08x\n",
-			       jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size);
-			jeb->gc_node = raw;
-			spin_unlock(&c->erase_completion_lock);
-			up(&c->alloc_sem);
-			BUG();
-		}
-	}
-	jeb->gc_node = raw;
-
-	D1(printk(KERN_DEBUG "Going to garbage collect node at 0x%08x\n", ref_offset(raw)));
-
-	if (!raw->next_in_ino) {
-		/* Inode-less node. Clean marker, snapshot or something like that */
-		/* FIXME: If it's something that needs to be copied, including something
-		   we don't grok that has JFFS2_NODETYPE_RWCOMPAT_COPY, we should do so */
-		spin_unlock(&c->erase_completion_lock);
-		jffs2_mark_node_obsolete(c, raw);
-		up(&c->alloc_sem);
-		goto eraseit_lock;
-	}
-
-	ic = jffs2_raw_ref_to_ic(raw);
-
-	/* We need to hold the inocache. Either the erase_completion_lock or
-	   the inocache_lock are sufficient; we trade down since the inocache_lock
-	   causes less contention. */
-	spin_lock(&c->inocache_lock);
-
-	spin_unlock(&c->erase_completion_lock);
-
-	D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass collecting from block @0x%08x. Node @0x%08x(%d), ino #%u\n", jeb->offset, ref_offset(raw), ref_flags(raw), ic->ino));
-
-	/* Three possibilities:
-	   1. Inode is already in-core. We must iget it and do proper
-	      updating to its fragtree, etc.
-	   2. Inode is not in-core, node is REF_PRISTINE. We lock the
-	      inocache to prevent a read_inode(), copy the node intact.
-	   3. Inode is not in-core, node is not pristine. We must iget()
-	      and take the slow path.
-	*/
-
-	switch(ic->state) {
-	case INO_STATE_CHECKEDABSENT:
-		/* It's been checked, but it's not currently in-core.
-		   We can just copy any pristine nodes, but have
-		   to prevent anyone else from doing read_inode() while
-		   we're at it, so we set the state accordingly */
-		if (ref_flags(raw) == REF_PRISTINE)
-			ic->state = INO_STATE_GC;
-		else {
-			D1(printk(KERN_DEBUG "Ino #%u is absent but node not REF_PRISTINE. Reading.\n",
-				  ic->ino));
-		}
-		break;
-
-	case INO_STATE_PRESENT:
-		/* It's in-core. GC must iget() it. */
-		break;
-
-	case INO_STATE_UNCHECKED:
-	case INO_STATE_CHECKING:
-	case INO_STATE_GC:
-		/* Should never happen. We should have finished checking
-		   by the time we actually start doing any GC, and since
-		   we're holding the alloc_sem, no other garbage collection
-		   can happen.
-		*/
-		printk(KERN_CRIT "Inode #%u already in state %d in jffs2_garbage_collect_pass()!\n",
-		       ic->ino, ic->state);
-		up(&c->alloc_sem);
-		spin_unlock(&c->inocache_lock);
-		BUG();
-
-	case INO_STATE_READING:
-		/* Someone's currently trying to read it. We must wait for
-		   them to finish and then go through the full iget() route
-		   to do the GC. However, sometimes read_inode() needs to get
-		   the alloc_sem() (for marking nodes invalid) so we must
-		   drop the alloc_sem before sleeping. */
-
-		up(&c->alloc_sem);
-		D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass() waiting for ino #%u in state %d\n",
-			  ic->ino, ic->state));
-		sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
-		/* And because we dropped the alloc_sem we must start again from the
-		   beginning. Ponder chance of livelock here -- we're returning success
-		   without actually making any progress.
-
-		   Q: What are the chances that the inode is back in INO_STATE_READING
-		   again by the time we next enter this function? And that this happens
-		   enough times to cause a real delay?
-
-		   A: Small enough that I don't care :)
-		*/
-		return 0;
-	}
-
-	/* OK. Now if the inode is in state INO_STATE_GC, we are going to copy the
-	   node intact, and we don't have to muck about with the fragtree etc.
-	   because we know it's not in-core. If it _was_ in-core, we go through
-	   all the iget() crap anyway */
-
-	if (ic->state == INO_STATE_GC) {
-		spin_unlock(&c->inocache_lock);
-
-		ret = jffs2_garbage_collect_pristine(c, ic, raw);
-
-		spin_lock(&c->inocache_lock);
-		ic->state = INO_STATE_CHECKEDABSENT;
-		wake_up(&c->inocache_wq);
-
-		if (ret != -EBADFD) {
-			spin_unlock(&c->inocache_lock);
-			goto release_sem;
-		}
-
-		/* Fall through if it wanted us to, with inocache_lock held */
-	}
-
-	/* Prevent the fairly unlikely race where the gcblock is
-	   entirely obsoleted by the final close of a file which had
-	   the only valid nodes in the block, followed by erasure,
-	   followed by freeing of the ic because the erased block(s)
-	   held _all_ the nodes of that inode.... never been seen but
-	   it's vaguely possible. */
-
-	inum = ic->ino;
-	nlink = ic->nlink;
-	spin_unlock(&c->inocache_lock);
-
-	f = jffs2_gc_fetch_inode(c, inum, nlink);
-	if (IS_ERR(f)) {
-		ret = PTR_ERR(f);
-		goto release_sem;
-	}
-	if (!f) {
-		ret = 0;
-		goto release_sem;
-	}
-
-	ret = jffs2_garbage_collect_live(c, jeb, raw, f);
-
-	jffs2_gc_release_inode(c, f);
-
- release_sem:
-	up(&c->alloc_sem);
-
- eraseit_lock:
-	/* If we've finished this block, start it erasing */
-	spin_lock(&c->erase_completion_lock);
-
- eraseit:
-	if (c->gcblock && !c->gcblock->used_size) {
-		D1(printk(KERN_DEBUG "Block at 0x%08x completely obsoleted by GC. Moving to erase_pending_list\n", c->gcblock->offset));
-		/* We're GC'ing an empty block? */
-		list_add_tail(&c->gcblock->list, &c->erase_pending_list);
-		c->gcblock = NULL;
-		c->nr_erasing_blocks++;
-		jffs2_erase_pending_trigger(c);
-	}
-	spin_unlock(&c->erase_completion_lock);
-
-	return ret;
-}
-
-static int jffs2_garbage_collect_live(struct jffs2_sb_info *c,  struct jffs2_eraseblock *jeb,
-				      struct jffs2_raw_node_ref *raw, struct jffs2_inode_info *f)
-{
-	struct jffs2_node_frag *frag;
-	struct jffs2_full_dnode *fn = NULL;
-	struct jffs2_full_dirent *fd;
-	uint32_t start = 0, end = 0, nrfrags = 0;
-	int ret = 0;
-
-	down(&f->sem);
-
-	/* Now we have the lock for this inode. Check that it's still the one at the head
-	   of the list. */
-
-	spin_lock(&c->erase_completion_lock);
-
-	if (c->gcblock != jeb) {
-		spin_unlock(&c->erase_completion_lock);
-		D1(printk(KERN_DEBUG "GC block is no longer gcblock. Restart\n"));
-		goto upnout;
-	}
-	if (ref_obsolete(raw)) {
-		spin_unlock(&c->erase_completion_lock);
-		D1(printk(KERN_DEBUG "node to be GC'd was obsoleted in the meantime.\n"));
-		/* They'll call again */
-		goto upnout;
-	}
-	spin_unlock(&c->erase_completion_lock);
-
-	/* OK. Looks safe. And nobody can get us now because we have the semaphore. Move the block */
-	if (f->metadata && f->metadata->raw == raw) {
-		fn = f->metadata;
-		ret = jffs2_garbage_collect_metadata(c, jeb, f, fn);
-		goto upnout;
-	}
-
-	/* FIXME. Read node and do lookup? */
-	for (frag = frag_first(&f->fragtree); frag; frag = frag_next(frag)) {
-		if (frag->node && frag->node->raw == raw) {
-			fn = frag->node;
-			end = frag->ofs + frag->size;
-			if (!nrfrags++)
-				start = frag->ofs;
-			if (nrfrags == frag->node->frags)
-				break; /* We've found them all */
-		}
-	}
-	if (fn) {
-		if (ref_flags(raw) == REF_PRISTINE) {
-			ret = jffs2_garbage_collect_pristine(c, f->inocache, raw);
-			if (!ret) {
-				/* Urgh. Return it sensibly. */
-				frag->node->raw = f->inocache->nodes;
-			}
-			if (ret != -EBADFD)
-				goto upnout;
-		}
-		/* We found a datanode. Do the GC */
-		if((start >> PAGE_CACHE_SHIFT) < ((end-1) >> PAGE_CACHE_SHIFT)) {
-			/* It crosses a page boundary. Therefore, it must be a hole. */
-			ret = jffs2_garbage_collect_hole(c, jeb, f, fn, start, end);
-		} else {
-			/* It could still be a hole. But we GC the page this way anyway */
-			ret = jffs2_garbage_collect_dnode(c, jeb, f, fn, start, end);
-		}
-		goto upnout;
-	}
-
-	/* Wasn't a dnode. Try dirent */
-	for (fd = f->dents; fd; fd=fd->next) {
-		if (fd->raw == raw)
-			break;
-	}
-
-	if (fd && fd->ino) {
-		ret = jffs2_garbage_collect_dirent(c, jeb, f, fd);
-	} else if (fd) {
-		ret = jffs2_garbage_collect_deletion_dirent(c, jeb, f, fd);
-	} else {
-		printk(KERN_WARNING "Raw node at 0x%08x wasn't in node lists for ino #%u\n",
-		       ref_offset(raw), f->inocache->ino);
-		if (ref_obsolete(raw)) {
-			printk(KERN_WARNING "But it's obsolete so we don't mind too much\n");
-		} else {
-			jffs2_dbg_dump_node(c, ref_offset(raw));
-			BUG();
-		}
-	}
- upnout:
-	up(&f->sem);
-
-	return ret;
-}
-
-static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
-					  struct jffs2_inode_cache *ic,
-					  struct jffs2_raw_node_ref *raw)
-{
-	union jffs2_node_union *node;
-	struct jffs2_raw_node_ref *nraw;
-	size_t retlen;
-	int ret;
-	uint32_t phys_ofs, alloclen;
-	uint32_t crc, rawlen;
-	int retried = 0;
-
-	D1(printk(KERN_DEBUG "Going to GC REF_PRISTINE node at 0x%08x\n", ref_offset(raw)));
-
-	rawlen = ref_totlen(c, c->gcblock, raw);
-
-	/* Ask for a small amount of space (or the totlen if smaller) because we
-	   don't want to force wastage of the end of a block if splitting would
-	   work. */
-	ret = jffs2_reserve_space_gc(c, min_t(uint32_t, sizeof(struct jffs2_raw_inode) + JFFS2_MIN_DATA_LEN,
-					      rawlen), &phys_ofs, &alloclen);
-	if (ret)
-		return ret;
-
-	if (alloclen < rawlen) {
-		/* Doesn't fit untouched. We'll go the old route and split it */
-		return -EBADFD;
-	}
-
-	node = kmalloc(rawlen, GFP_KERNEL);
-	if (!node)
-               return -ENOMEM;
-
-	ret = jffs2_flash_read(c, ref_offset(raw), rawlen, &retlen, (unsigned char *)node);
-	if (!ret && retlen != rawlen)
-		ret = -EIO;
-	if (ret)
-		goto out_node;
-
-	crc = crc32(0, node, sizeof(struct jffs2_unknown_node)-4);
-	if (je32_to_cpu(node->u.hdr_crc) != crc) {
-		printk(KERN_WARNING "Header CRC failed on REF_PRISTINE node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
-		       ref_offset(raw), je32_to_cpu(node->u.hdr_crc), crc);
-		goto bail;
-	}
-
-	switch(je16_to_cpu(node->u.nodetype)) {
-	case JFFS2_NODETYPE_INODE:
-		crc = crc32(0, node, sizeof(node->i)-8);
-		if (je32_to_cpu(node->i.node_crc) != crc) {
-			printk(KERN_WARNING "Node CRC failed on REF_PRISTINE data node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
-			       ref_offset(raw), je32_to_cpu(node->i.node_crc), crc);
-			goto bail;
-		}
-
-		if (je32_to_cpu(node->i.dsize)) {
-			crc = crc32(0, node->i.data, je32_to_cpu(node->i.csize));
-			if (je32_to_cpu(node->i.data_crc) != crc) {
-				printk(KERN_WARNING "Data CRC failed on REF_PRISTINE data node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
-				       ref_offset(raw), je32_to_cpu(node->i.data_crc), crc);
-				goto bail;
-			}
-		}
-		break;
-
-	case JFFS2_NODETYPE_DIRENT:
-		crc = crc32(0, node, sizeof(node->d)-8);
-		if (je32_to_cpu(node->d.node_crc) != crc) {
-			printk(KERN_WARNING "Node CRC failed on REF_PRISTINE dirent node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
-			       ref_offset(raw), je32_to_cpu(node->d.node_crc), crc);
-			goto bail;
-		}
-
-		if (node->d.nsize) {
-			crc = crc32(0, node->d.name, node->d.nsize);
-			if (je32_to_cpu(node->d.name_crc) != crc) {
-				printk(KERN_WARNING "Name CRC failed on REF_PRISTINE dirent ode at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
-				       ref_offset(raw), je32_to_cpu(node->d.name_crc), crc);
-				goto bail;
-			}
-		}
-		break;
-	default:
-		printk(KERN_WARNING "Unknown node type for REF_PRISTINE node at 0x%08x: 0x%04x\n",
-		       ref_offset(raw), je16_to_cpu(node->u.nodetype));
-		goto bail;
-	}
-
-	nraw = jffs2_alloc_raw_node_ref();
-	if (!nraw) {
-		ret = -ENOMEM;
-		goto out_node;
-	}
-
-	/* OK, all the CRCs are good; this node can just be copied as-is. */
- retry:
-	nraw->flash_offset = phys_ofs;
-	nraw->__totlen = rawlen;
-	nraw->next_phys = NULL;
-
-	ret = jffs2_flash_write(c, phys_ofs, rawlen, &retlen, (unsigned char *)node);
-
-	if (ret || (retlen != rawlen)) {
-		printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %zd\n",
-                       rawlen, phys_ofs, ret, retlen);
-		if (retlen) {
-                        /* Doesn't belong to any inode */
-			nraw->next_in_ino = NULL;
-
-			nraw->flash_offset |= REF_OBSOLETE;
-			jffs2_add_physical_node_ref(c, nraw);
-			jffs2_mark_node_obsolete(c, nraw);
-		} else {
-			printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", nraw->flash_offset);
-                        jffs2_free_raw_node_ref(nraw);
-		}
-		if (!retried && (nraw = jffs2_alloc_raw_node_ref())) {
-			/* Try to reallocate space and retry */
-			uint32_t dummy;
-			struct jffs2_eraseblock *jeb = &c->blocks[phys_ofs / c->sector_size];
-
-			retried = 1;
-
-			D1(printk(KERN_DEBUG "Retrying failed write of REF_PRISTINE node.\n"));
-
-			jffs2_dbg_acct_sanity_check(c,jeb);
-			jffs2_dbg_acct_paranoia_check(c, jeb);
-
-			ret = jffs2_reserve_space_gc(c, rawlen, &phys_ofs, &dummy);
-
-			if (!ret) {
-				D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", phys_ofs));
-
-				jffs2_dbg_acct_sanity_check(c,jeb);
-				jffs2_dbg_acct_paranoia_check(c, jeb);
-
-				goto retry;
-			}
-			D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
-			jffs2_free_raw_node_ref(nraw);
-		}
-
-		jffs2_free_raw_node_ref(nraw);
-		if (!ret)
-			ret = -EIO;
-		goto out_node;
-	}
-	nraw->flash_offset |= REF_PRISTINE;
-	jffs2_add_physical_node_ref(c, nraw);
-
-	/* Link into per-inode list. This is safe because of the ic
-	   state being INO_STATE_GC. Note that if we're doing this
-	   for an inode which is in-core, the 'nraw' pointer is then
-	   going to be fetched from ic->nodes by our caller. */
-	spin_lock(&c->erase_completion_lock);
-        nraw->next_in_ino = ic->nodes;
-        ic->nodes = nraw;
-	spin_unlock(&c->erase_completion_lock);
-
-	jffs2_mark_node_obsolete(c, raw);
-	D1(printk(KERN_DEBUG "WHEEE! GC REF_PRISTINE node at 0x%08x succeeded\n", ref_offset(raw)));
-
- out_node:
-	kfree(node);
-	return ret;
- bail:
-	ret = -EBADFD;
-	goto out_node;
-}
-
-static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-					struct jffs2_inode_info *f, struct jffs2_full_dnode *fn)
-{
-	struct jffs2_full_dnode *new_fn;
-	struct jffs2_raw_inode ri;
-	struct jffs2_node_frag *last_frag;
-	jint16_t dev;
-	char *mdata = NULL, mdatalen = 0;
-	uint32_t alloclen, phys_ofs, ilen;
-	int ret;
-
-	if (S_ISBLK(JFFS2_F_I_MODE(f)) ||
-	    S_ISCHR(JFFS2_F_I_MODE(f)) ) {
-		/* For these, we don't actually need to read the old node */
-		/* FIXME: for minor or major > 255. */
-		dev = cpu_to_je16(((JFFS2_F_I_RDEV_MAJ(f) << 8) |
-			JFFS2_F_I_RDEV_MIN(f)));
-		mdata = (char *)&dev;
-		mdatalen = sizeof(dev);
-		D1(printk(KERN_DEBUG "jffs2_garbage_collect_metadata(): Writing %d bytes of kdev_t\n", mdatalen));
-	} else if (S_ISLNK(JFFS2_F_I_MODE(f))) {
-		mdatalen = fn->size;
-		mdata = kmalloc(fn->size, GFP_KERNEL);
-		if (!mdata) {
-			printk(KERN_WARNING "kmalloc of mdata failed in jffs2_garbage_collect_metadata()\n");
-			return -ENOMEM;
-		}
-		ret = jffs2_read_dnode(c, f, fn, (unsigned char *)mdata, 0, mdatalen);
-		if (ret) {
-			printk(KERN_WARNING "read of old metadata failed in jffs2_garbage_collect_metadata(): %d\n", ret);
-			kfree(mdata);
-			return ret;
-		}
-		D1(printk(KERN_DEBUG "jffs2_garbage_collect_metadata(): Writing %d bites of symlink target\n", mdatalen));
-
-	}
-
-	ret = jffs2_reserve_space_gc(c, sizeof(ri) + mdatalen, &phys_ofs, &alloclen);
-	if (ret) {
-		printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_metadata failed: %d\n",
-		       sizeof(ri)+ mdatalen, ret);
-		goto out;
-	}
-
-	last_frag = frag_last(&f->fragtree);
-	if (last_frag)
-		/* Fetch the inode length from the fragtree rather then
-		 * from i_size since i_size may have not been updated yet */
-		ilen = last_frag->ofs + last_frag->size;
-	else
-		ilen = JFFS2_F_I_SIZE(f);
-
-	memset(&ri, 0, sizeof(ri));
-	ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-	ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
-	ri.totlen = cpu_to_je32(sizeof(ri) + mdatalen);
-	ri.hdr_crc = cpu_to_je32(crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4));
-
-	ri.ino = cpu_to_je32(f->inocache->ino);
-	ri.version = cpu_to_je32(++f->highest_version);
-	ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
-	ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
-	ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
-	ri.isize = cpu_to_je32(ilen);
-	ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
-	ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
-	ri.mtime = cpu_to_je32(JFFS2_F_I_MTIME(f));
-	ri.offset = cpu_to_je32(0);
-	ri.csize = cpu_to_je32(mdatalen);
-	ri.dsize = cpu_to_je32(mdatalen);
-	ri.compr = JFFS2_COMPR_NONE;
-	ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
-	ri.data_crc = cpu_to_je32(crc32(0, mdata, mdatalen));
-
-	new_fn = jffs2_write_dnode(c, f, &ri, (const unsigned char *)mdata, mdatalen, phys_ofs, ALLOC_GC);
-
-	if (IS_ERR(new_fn)) {
-		printk(KERN_WARNING "Error writing new dnode: %ld\n", PTR_ERR(new_fn));
-		ret = PTR_ERR(new_fn);
-		goto out;
-	}
-	jffs2_mark_node_obsolete(c, fn->raw);
-	jffs2_free_full_dnode(fn);
-	f->metadata = new_fn;
- out:
-	if (S_ISLNK(JFFS2_F_I_MODE(f)))
-		kfree(mdata);
-	return ret;
-}
-
-static int jffs2_garbage_collect_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-					struct jffs2_inode_info *f, struct jffs2_full_dirent *fd)
-{
-	struct jffs2_full_dirent *new_fd;
-	struct jffs2_raw_dirent rd;
-	uint32_t alloclen, phys_ofs;
-	int ret;
-
-	rd.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-	rd.nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
-	rd.nsize = strlen((const char *)fd->name);
-	rd.totlen = cpu_to_je32(sizeof(rd) + rd.nsize);
-	rd.hdr_crc = cpu_to_je32(crc32(0, &rd, sizeof(struct jffs2_unknown_node)-4));
-
-	rd.pino = cpu_to_je32(f->inocache->ino);
-	rd.version = cpu_to_je32(++f->highest_version);
-	rd.ino = cpu_to_je32(fd->ino);
-	rd.mctime = cpu_to_je32(max(JFFS2_F_I_MTIME(f), JFFS2_F_I_CTIME(f)));
-	rd.type = fd->type;
-	rd.node_crc = cpu_to_je32(crc32(0, &rd, sizeof(rd)-8));
-	rd.name_crc = cpu_to_je32(crc32(0, fd->name, rd.nsize));
-
-	ret = jffs2_reserve_space_gc(c, sizeof(rd)+rd.nsize, &phys_ofs, &alloclen);
-	if (ret) {
-		printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_dirent failed: %d\n",
-		       sizeof(rd)+rd.nsize, ret);
-		return ret;
-	}
-	new_fd = jffs2_write_dirent(c, f, &rd, fd->name, rd.nsize, phys_ofs, ALLOC_GC);
-
-	if (IS_ERR(new_fd)) {
-		printk(KERN_WARNING "jffs2_write_dirent in garbage_collect_dirent failed: %ld\n", PTR_ERR(new_fd));
-		return PTR_ERR(new_fd);
-	}
-	jffs2_add_fd_to_list(c, new_fd, &f->dents);
-	return 0;
-}
-
-static int jffs2_garbage_collect_deletion_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-					struct jffs2_inode_info *f, struct jffs2_full_dirent *fd)
-{
-	struct jffs2_full_dirent **fdp = &f->dents;
-	int found = 0;
-
-	/* On a medium where we can't actually mark nodes obsolete
-	   pernamently, such as NAND flash, we need to work out
-	   whether this deletion dirent is still needed to actively
-	   delete a 'real' dirent with the same name that's still
-	   somewhere else on the flash. */
-	if (!jffs2_can_mark_obsolete(c)) {
-		struct jffs2_raw_dirent *rd;
-		struct jffs2_raw_node_ref *raw;
-		int ret;
-		size_t retlen;
-		int name_len = strlen((const char *)fd->name);
-		uint32_t name_crc = crc32(0, fd->name, name_len);
-		uint32_t rawlen = ref_totlen(c, jeb, fd->raw);
-
-		rd = kmalloc(rawlen, GFP_KERNEL);
-		if (!rd)
-			return -ENOMEM;
-
-		/* Prevent the erase code from nicking the obsolete node refs while
-		   we're looking at them. I really don't like this extra lock but
-		   can't see any alternative. Suggestions on a postcard to... */
-		down(&c->erase_free_sem);
-
-		for (raw = f->inocache->nodes; raw != (void *)f->inocache; raw = raw->next_in_ino) {
-
-			/* We only care about obsolete ones */
-			if (!(ref_obsolete(raw)))
-				continue;
-
-			/* Any dirent with the same name is going to have the same length... */
-			if (ref_totlen(c, NULL, raw) != rawlen)
-				continue;
-
-			/* Doesn't matter if there's one in the same erase block. We're going to
-			   delete it too at the same time. */
-			if (SECTOR_ADDR(raw->flash_offset) == SECTOR_ADDR(fd->raw->flash_offset))
-				continue;
-
-			D1(printk(KERN_DEBUG "Check potential deletion dirent at %08x\n", ref_offset(raw)));
-
-			/* This is an obsolete node belonging to the same directory, and it's of the right
-			   length. We need to take a closer look...*/
-			ret = jffs2_flash_read(c, ref_offset(raw), rawlen, &retlen, (unsigned char *)rd);
-			if (ret) {
-				printk(KERN_WARNING "jffs2_g_c_deletion_dirent(): Read error (%d) reading obsolete node at %08x\n", ret, ref_offset(raw));
-				/* If we can't read it, we don't need to continue to obsolete it. Continue */
-				continue;
-			}
-			if (retlen != rawlen) {
-				printk(KERN_WARNING "jffs2_g_c_deletion_dirent(): Short read (%zd not %u) reading header from obsolete node at %08x\n",
-				       retlen, rawlen, ref_offset(raw));
-				continue;
-			}
-
-			if (je16_to_cpu(rd->nodetype) != JFFS2_NODETYPE_DIRENT)
-				continue;
-
-			/* If the name CRC doesn't match, skip */
-			if (je32_to_cpu(rd->name_crc) != name_crc)
-				continue;
-
-			/* If the name length doesn't match, or it's another deletion dirent, skip */
-			if (rd->nsize != name_len || !je32_to_cpu(rd->ino))
-				continue;
-
-			/* OK, check the actual name now */
-			if (memcmp(rd->name, fd->name, name_len))
-				continue;
-
-			/* OK. The name really does match. There really is still an older node on
-			   the flash which our deletion dirent obsoletes. So we have to write out
-			   a new deletion dirent to replace it */
-			up(&c->erase_free_sem);
-
-			D1(printk(KERN_DEBUG "Deletion dirent at %08x still obsoletes real dirent \"%s\" at %08x for ino #%u\n",
-				  ref_offset(fd->raw), fd->name, ref_offset(raw), je32_to_cpu(rd->ino)));
-			kfree(rd);
-
-			return jffs2_garbage_collect_dirent(c, jeb, f, fd);
-		}
-
-		up(&c->erase_free_sem);
-		kfree(rd);
-	}
-
-	/* No need for it any more. Just mark it obsolete and remove it from the list */
-	while (*fdp) {
-		if ((*fdp) == fd) {
-			found = 1;
-			*fdp = fd->next;
-			break;
-		}
-		fdp = &(*fdp)->next;
-	}
-	if (!found) {
-		printk(KERN_WARNING "Deletion dirent \"%s\" not found in list for ino #%u\n", fd->name, f->inocache->ino);
-	}
-	jffs2_mark_node_obsolete(c, fd->raw);
-	jffs2_free_full_dirent(fd);
-	return 0;
-}
-
-static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-				      struct jffs2_inode_info *f, struct jffs2_full_dnode *fn,
-				      uint32_t start, uint32_t end)
-{
-	struct jffs2_raw_inode ri;
-	struct jffs2_node_frag *frag;
-	struct jffs2_full_dnode *new_fn;
-	uint32_t alloclen, phys_ofs, ilen;
-	int ret;
-
-	D1(printk(KERN_DEBUG "Writing replacement hole node for ino #%u from offset 0x%x to 0x%x\n",
-		  f->inocache->ino, start, end));
-
-	memset(&ri, 0, sizeof(ri));
-
-	if(fn->frags > 1) {
-		size_t readlen;
-		uint32_t crc;
-		/* It's partially obsoleted by a later write. So we have to
-		   write it out again with the _same_ version as before */
-		ret = jffs2_flash_read(c, ref_offset(fn->raw), sizeof(ri), &readlen, (unsigned char *)&ri);
-		if (readlen != sizeof(ri) || ret) {
-			printk(KERN_WARNING "Node read failed in jffs2_garbage_collect_hole. Ret %d, retlen %zd. Data will be lost by writing new hole node\n", ret, readlen);
-			goto fill;
-		}
-		if (je16_to_cpu(ri.nodetype) != JFFS2_NODETYPE_INODE) {
-			printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had node type 0x%04x instead of JFFS2_NODETYPE_INODE(0x%04x)\n",
-			       ref_offset(fn->raw),
-			       je16_to_cpu(ri.nodetype), JFFS2_NODETYPE_INODE);
-			return -EIO;
-		}
-		if (je32_to_cpu(ri.totlen) != sizeof(ri)) {
-			printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had totlen 0x%x instead of expected 0x%zx\n",
-			       ref_offset(fn->raw),
-			       je32_to_cpu(ri.totlen), sizeof(ri));
-			return -EIO;
-		}
-		crc = crc32(0, &ri, sizeof(ri)-8);
-		if (crc != je32_to_cpu(ri.node_crc)) {
-			printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had CRC 0x%08x which doesn't match calculated CRC 0x%08x\n",
-			       ref_offset(fn->raw),
-			       je32_to_cpu(ri.node_crc), crc);
-			/* FIXME: We could possibly deal with this by writing new holes for each frag */
-			printk(KERN_WARNING "Data in the range 0x%08x to 0x%08x of inode #%u will be lost\n",
-			       start, end, f->inocache->ino);
-			goto fill;
-		}
-		if (ri.compr != JFFS2_COMPR_ZERO) {
-			printk(KERN_WARNING "jffs2_garbage_collect_hole: Node 0x%08x wasn't a hole node!\n", ref_offset(fn->raw));
-			printk(KERN_WARNING "Data in the range 0x%08x to 0x%08x of inode #%u will be lost\n",
-			       start, end, f->inocache->ino);
-			goto fill;
-		}
-	} else {
-	fill:
-		ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-		ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
-		ri.totlen = cpu_to_je32(sizeof(ri));
-		ri.hdr_crc = cpu_to_je32(crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4));
-
-		ri.ino = cpu_to_je32(f->inocache->ino);
-		ri.version = cpu_to_je32(++f->highest_version);
-		ri.offset = cpu_to_je32(start);
-		ri.dsize = cpu_to_je32(end - start);
-		ri.csize = cpu_to_je32(0);
-		ri.compr = JFFS2_COMPR_ZERO;
-	}
-
-	frag = frag_last(&f->fragtree);
-	if (frag)
-		/* Fetch the inode length from the fragtree rather then
-		 * from i_size since i_size may have not been updated yet */
-		ilen = frag->ofs + frag->size;
-	else
-		ilen = JFFS2_F_I_SIZE(f);
-
-	ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
-	ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
-	ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
-	ri.isize = cpu_to_je32(ilen);
-	ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
-	ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
-	ri.mtime = cpu_to_je32(JFFS2_F_I_MTIME(f));
-	ri.data_crc = cpu_to_je32(0);
-	ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
-
-	ret = jffs2_reserve_space_gc(c, sizeof(ri), &phys_ofs, &alloclen);
-	if (ret) {
-		printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_hole failed: %d\n",
-		       sizeof(ri), ret);
-		return ret;
-	}
-	new_fn = jffs2_write_dnode(c, f, &ri, NULL, 0, phys_ofs, ALLOC_GC);
-
-	if (IS_ERR(new_fn)) {
-		printk(KERN_WARNING "Error writing new hole node: %ld\n", PTR_ERR(new_fn));
-		return PTR_ERR(new_fn);
-	}
-	if (je32_to_cpu(ri.version) == f->highest_version) {
-		jffs2_add_full_dnode_to_inode(c, f, new_fn);
-		if (f->metadata) {
-			jffs2_mark_node_obsolete(c, f->metadata->raw);
-			jffs2_free_full_dnode(f->metadata);
-			f->metadata = NULL;
-		}
-		return 0;
-	}
-
-	/*
-	 * We should only get here in the case where the node we are
-	 * replacing had more than one frag, so we kept the same version
-	 * number as before. (Except in case of error -- see 'goto fill;'
-	 * above.)
-	 */
-	D1(if(unlikely(fn->frags <= 1)) {
-		printk(KERN_WARNING "jffs2_garbage_collect_hole: Replacing fn with %d frag(s) but new ver %d != highest_version %d of ino #%d\n",
-		       fn->frags, je32_to_cpu(ri.version), f->highest_version,
-		       je32_to_cpu(ri.ino));
-	});
-
-	/* This is a partially-overlapped hole node. Mark it REF_NORMAL not REF_PRISTINE */
-	mark_ref_normal(new_fn->raw);
-
-	for (frag = jffs2_lookup_node_frag(&f->fragtree, fn->ofs);
-	     frag; frag = frag_next(frag)) {
-		if (frag->ofs > fn->size + fn->ofs)
-			break;
-		if (frag->node == fn) {
-			frag->node = new_fn;
-			new_fn->frags++;
-			fn->frags--;
-		}
-	}
-	if (fn->frags) {
-		printk(KERN_WARNING "jffs2_garbage_collect_hole: Old node still has frags!\n");
-		BUG();
-	}
-	if (!new_fn->frags) {
-		printk(KERN_WARNING "jffs2_garbage_collect_hole: New node has no frags!\n");
-		BUG();
-	}
-
-	jffs2_mark_node_obsolete(c, fn->raw);
-	jffs2_free_full_dnode(fn);
-
-	return 0;
-}
-
-static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-				       struct jffs2_inode_info *f, struct jffs2_full_dnode *fn,
-				       uint32_t start, uint32_t end)
-{
-	struct jffs2_full_dnode *new_fn;
-	struct jffs2_raw_inode ri;
-	uint32_t alloclen, phys_ofs, offset, orig_end, orig_start;
-	int ret = 0;
-	unsigned char *comprbuf = NULL, *writebuf;
-	unsigned long pg;
-	unsigned char *pg_ptr;
-
-	memset(&ri, 0, sizeof(ri));
-
-	D1(printk(KERN_DEBUG "Writing replacement dnode for ino #%u from offset 0x%x to 0x%x\n",
-		  f->inocache->ino, start, end));
-
-	orig_end = end;
-	orig_start = start;
-
-	if (c->nr_free_blocks + c->nr_erasing_blocks > c->resv_blocks_gcmerge) {
-		/* Attempt to do some merging. But only expand to cover logically
-		   adjacent frags if the block containing them is already considered
-		   to be dirty. Otherwise we end up with GC just going round in
-		   circles dirtying the nodes it already wrote out, especially
-		   on NAND where we have small eraseblocks and hence a much higher
-		   chance of nodes having to be split to cross boundaries. */
-
-		struct jffs2_node_frag *frag;
-		uint32_t min, max;
-
-		min = start & ~(PAGE_CACHE_SIZE-1);
-		max = min + PAGE_CACHE_SIZE;
-
-		frag = jffs2_lookup_node_frag(&f->fragtree, start);
-
-		/* BUG_ON(!frag) but that'll happen anyway... */
-
-		BUG_ON(frag->ofs != start);
-
-		/* First grow down... */
-		while((frag = frag_prev(frag)) && frag->ofs >= min) {
-
-			/* If the previous frag doesn't even reach the beginning, there's
-			   excessive fragmentation. Just merge. */
-			if (frag->ofs > min) {
-				D1(printk(KERN_DEBUG "Expanding down to cover partial frag (0x%x-0x%x)\n",
-					  frag->ofs, frag->ofs+frag->size));
-				start = frag->ofs;
-				continue;
-			}
-			/* OK. This frag holds the first byte of the page. */
-			if (!frag->node || !frag->node->raw) {
-				D1(printk(KERN_DEBUG "First frag in page is hole (0x%x-0x%x). Not expanding down.\n",
-					  frag->ofs, frag->ofs+frag->size));
-				break;
-			} else {
-
-				/* OK, it's a frag which extends to the beginning of the page. Does it live
-				   in a block which is still considered clean? If so, don't obsolete it.
-				   If not, cover it anyway. */
-
-				struct jffs2_raw_node_ref *raw = frag->node->raw;
-				struct jffs2_eraseblock *jeb;
-
-				jeb = &c->blocks[raw->flash_offset / c->sector_size];
-
-				if (jeb == c->gcblock) {
-					D1(printk(KERN_DEBUG "Expanding down to cover frag (0x%x-0x%x) in gcblock at %08x\n",
-						  frag->ofs, frag->ofs+frag->size, ref_offset(raw)));
-					start = frag->ofs;
-					break;
-				}
-				if (!ISDIRTY(jeb->dirty_size + jeb->wasted_size)) {
-					D1(printk(KERN_DEBUG "Not expanding down to cover frag (0x%x-0x%x) in clean block %08x\n",
-						  frag->ofs, frag->ofs+frag->size, jeb->offset));
-					break;
-				}
-
-				D1(printk(KERN_DEBUG "Expanding down to cover frag (0x%x-0x%x) in dirty block %08x\n",
-						  frag->ofs, frag->ofs+frag->size, jeb->offset));
-				start = frag->ofs;
-				break;
-			}
-		}
-
-		/* ... then up */
-
-		/* Find last frag which is actually part of the node we're to GC. */
-		frag = jffs2_lookup_node_frag(&f->fragtree, end-1);
-
-		while((frag = frag_next(frag)) && frag->ofs+frag->size <= max) {
-
-			/* If the previous frag doesn't even reach the beginning, there's lots
-			   of fragmentation. Just merge. */
-			if (frag->ofs+frag->size < max) {
-				D1(printk(KERN_DEBUG "Expanding up to cover partial frag (0x%x-0x%x)\n",
-					  frag->ofs, frag->ofs+frag->size));
-				end = frag->ofs + frag->size;
-				continue;
-			}
-
-			if (!frag->node || !frag->node->raw) {
-				D1(printk(KERN_DEBUG "Last frag in page is hole (0x%x-0x%x). Not expanding up.\n",
-					  frag->ofs, frag->ofs+frag->size));
-				break;
-			} else {
-
-				/* OK, it's a frag which extends to the beginning of the page. Does it live
-				   in a block which is still considered clean? If so, don't obsolete it.
-				   If not, cover it anyway. */
-
-				struct jffs2_raw_node_ref *raw = frag->node->raw;
-				struct jffs2_eraseblock *jeb;
-
-				jeb = &c->blocks[raw->flash_offset / c->sector_size];
-
-				if (jeb == c->gcblock) {
-					D1(printk(KERN_DEBUG "Expanding up to cover frag (0x%x-0x%x) in gcblock at %08x\n",
-						  frag->ofs, frag->ofs+frag->size, ref_offset(raw)));
-					end = frag->ofs + frag->size;
-					break;
-				}
-				if (!ISDIRTY(jeb->dirty_size + jeb->wasted_size)) {
-					D1(printk(KERN_DEBUG "Not expanding up to cover frag (0x%x-0x%x) in clean block %08x\n",
-						  frag->ofs, frag->ofs+frag->size, jeb->offset));
-					break;
-				}
-
-				D1(printk(KERN_DEBUG "Expanding up to cover frag (0x%x-0x%x) in dirty block %08x\n",
-						  frag->ofs, frag->ofs+frag->size, jeb->offset));
-				end = frag->ofs + frag->size;
-				break;
-			}
-		}
-		D1(printk(KERN_DEBUG "Expanded dnode to write from (0x%x-0x%x) to (0x%x-0x%x)\n",
-			  orig_start, orig_end, start, end));
-
-		D1(BUG_ON(end > frag_last(&f->fragtree)->ofs + frag_last(&f->fragtree)->size));
-		BUG_ON(end < orig_end);
-		BUG_ON(start > orig_start);
-	}
-
-	/* First, use readpage() to read the appropriate page into the page cache */
-	/* Q: What happens if we actually try to GC the _same_ page for which commit_write()
-	 *    triggered garbage collection in the first place?
-	 * A: I _think_ it's OK. read_cache_page shouldn't deadlock, we'll write out the
-	 *    page OK. We'll actually write it out again in commit_write, which is a little
-	 *    suboptimal, but at least we're correct.
-	 */
-	pg_ptr = jffs2_gc_fetch_page(c, f, start, &pg);
-
-	if (IS_ERR(pg_ptr)) {
-		printk(KERN_WARNING "read_cache_page() returned error: %ld\n", PTR_ERR(pg_ptr));
-		return PTR_ERR(pg_ptr);
-	}
-
-	offset = start;
-	while(offset < orig_end) {
-		uint32_t datalen;
-		uint32_t cdatalen;
-		uint16_t comprtype = JFFS2_COMPR_NONE;
-
-		ret = jffs2_reserve_space_gc(c, sizeof(ri) + JFFS2_MIN_DATA_LEN, &phys_ofs, &alloclen);
-
-		if (ret) {
-			printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_dnode failed: %d\n",
-			       sizeof(ri)+ JFFS2_MIN_DATA_LEN, ret);
-			break;
-		}
-		cdatalen = min_t(uint32_t, alloclen - sizeof(ri), end - offset);
-		datalen = end - offset;
-
-		writebuf = pg_ptr + (offset & (PAGE_CACHE_SIZE -1));
-
-		comprtype = jffs2_compress(c, f, writebuf, &comprbuf, &datalen, &cdatalen);
-
-		ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-		ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
-		ri.totlen = cpu_to_je32(sizeof(ri) + cdatalen);
-		ri.hdr_crc = cpu_to_je32(crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4));
-
-		ri.ino = cpu_to_je32(f->inocache->ino);
-		ri.version = cpu_to_je32(++f->highest_version);
-		ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
-		ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
-		ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
-		ri.isize = cpu_to_je32(JFFS2_F_I_SIZE(f));
-		ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
-		ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
-		ri.mtime = cpu_to_je32(JFFS2_F_I_MTIME(f));
-		ri.offset = cpu_to_je32(offset);
-		ri.csize = cpu_to_je32(cdatalen);
-		ri.dsize = cpu_to_je32(datalen);
-		ri.compr = comprtype & 0xff;
-		ri.usercompr = (comprtype >> 8) & 0xff;
-		ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
-		ri.data_crc = cpu_to_je32(crc32(0, comprbuf, cdatalen));
-
-		new_fn = jffs2_write_dnode(c, f, &ri, comprbuf, cdatalen, phys_ofs, ALLOC_GC);
-
-		jffs2_free_comprbuf(comprbuf, writebuf);
-
-		if (IS_ERR(new_fn)) {
-			printk(KERN_WARNING "Error writing new dnode: %ld\n", PTR_ERR(new_fn));
-			ret = PTR_ERR(new_fn);
-			break;
-		}
-		ret = jffs2_add_full_dnode_to_inode(c, f, new_fn);
-		offset += datalen;
-		if (f->metadata) {
-			jffs2_mark_node_obsolete(c, f->metadata->raw);
-			jffs2_free_full_dnode(f->metadata);
-			f->metadata = NULL;
-		}
-	}
-
-	jffs2_gc_release_page(c, pg_ptr, &pg);
-	return ret;
-}
-
diff --git a/components/dfs/filesystems/jffs2/src/gcthread.c b/components/dfs/filesystems/jffs2/src/gcthread.c
deleted file mode 100644
index ab66e1878e..0000000000
--- a/components/dfs/filesystems/jffs2/src/gcthread.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@redhat.com>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: gcthread.c,v 1.3 2005/01/22 16:01:12 lunn Exp $
- *
- */
-#include <linux/kernel.h>
-#include "nodelist.h"
-//#include <cyg/kernel/kapi.h> prife
-
-#if defined(CYGOPT_FS_JFFS2_GCTHREAD)
-
-#define GC_THREAD_FLAG_TRIG 1
-#define GC_THREAD_FLAG_STOP 2
-#define GC_THREAD_FLAG_HAS_EXIT 4
-
-#if 0
-static cyg_thread_entry_t jffs2_garbage_collect_thread;
-
-void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
-{
-     struct super_block *sb=OFNI_BS_2SFFJ(c);
-
-     /* Wake up the thread */
-     D1(printk("jffs2_garbage_collect_trigger\n"));
-
-     cyg_flag_setbits(&sb->s_gc_thread_flags,GC_THREAD_FLAG_TRIG);
-}
-
-
-void
-jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
-{
-     struct super_block *sb=OFNI_BS_2SFFJ(c);
-
-     RT_ASSERT(c);
-     RT_ASSERT(!sb->s_gc_thread_handle);
-
-     cyg_flag_init(&sb->s_gc_thread_flags);
-     cyg_mutex_init(&sb->s_lock);
-
-     D1(printk("jffs2_start_garbage_collect_thread\n"));
-     /* Start the thread. Doesn't matter if it fails -- it's only an
-      * optimisation anyway */
-     cyg_thread_create(CYGNUM_JFFS2_GC_THREAD_PRIORITY,
-                       jffs2_garbage_collect_thread,
-                       (unsigned long)c,"jffs2 gc thread",
-                       (void*)sb->s_gc_thread_stack,
-                       sizeof(sb->s_gc_thread_stack),
-                       &sb->s_gc_thread_handle,
-                       &sb->s_gc_thread);
-
-     cyg_thread_resume(sb->s_gc_thread_handle);
-}
-
-void
-jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c)
-{
-     struct super_block *sb=OFNI_BS_2SFFJ(c);
-
-     RT_ASSERT(sb->s_gc_thread_handle);
-
-     D1(printk("jffs2_stop_garbage_collect_thread\n"));
-     /* Stop the thread and wait for it if necessary */
-
-     cyg_flag_setbits(&sb->s_gc_thread_flags,GC_THREAD_FLAG_STOP);
-
-     D1(printk("jffs2_stop_garbage_collect_thread wait\n"));
-
-     cyg_flag_wait(&sb->s_gc_thread_flags,
-                   GC_THREAD_FLAG_HAS_EXIT,
-                   CYG_FLAG_WAITMODE_OR| CYG_FLAG_WAITMODE_CLR);
-
-     // Kill and free the resources ...  this is safe due to the flag
-     // from the thread.
-     cyg_thread_kill(sb->s_gc_thread_handle);
-     cyg_thread_delete(sb->s_gc_thread_handle);
-
-     cyg_mutex_destroy(&sb->s_lock);
-     cyg_flag_destroy(&sb->s_gc_thread_flags);
-}
-
-
-static void
-jffs2_garbage_collect_thread(unsigned long data)
-{
-     struct jffs2_sb_info *c=(struct jffs2_sb_info *)data;
-     struct super_block *sb=OFNI_BS_2SFFJ(c);
-     cyg_flag_value_t flag;
-     cyg_mtab_entry *mte;
-
-     D1(printk("jffs2_garbage_collect_thread START\n"));
-
-     while(1) {
-          flag=cyg_flag_timed_wait(&sb->s_gc_thread_flags,
-                                   GC_THREAD_FLAG_TRIG|GC_THREAD_FLAG_STOP,
-                                   CYG_FLAG_WAITMODE_OR| CYG_FLAG_WAITMODE_CLR,
-                                   cyg_current_time()+
-                                   CYGNUM_JFFS2_GS_THREAD_TICKS);
-
-          if (flag & GC_THREAD_FLAG_STOP)
-               break;
-
-          D1(printk("jffs2: GC THREAD GC BEGIN\n"));
-
-          mte=cyg_fs_root_lookup((cyg_dir *) sb->s_root);
-          CYG_ASSERT(mte, "Bad mount point");
-          cyg_fs_lock(mte, mte->fs->syncmode);
-
-          if (jffs2_garbage_collect_pass(c) == -ENOSPC) {
-               printf("No space for garbage collection. "
-                      "Aborting JFFS2 GC thread\n");
-               break;
-          }
-          cyg_fs_unlock(mte, mte->fs->syncmode);
-          D1(printk("jffs2: GC THREAD GC END\n"));
-     }
-
-     D1(printk("jffs2_garbage_collect_thread EXIT\n"));
-     cyg_flag_setbits(&sb->s_gc_thread_flags,GC_THREAD_FLAG_HAS_EXIT);
-}
-#endif 
-
-rt_uint32_t cyg_current_time(void)
-{
-	return 0;
-}
-
-static void
-jffs2_garbage_collect_thread(unsigned long data);
-
-void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
-{
-     struct super_block *sb=OFNI_BS_2SFFJ(c);
-
-     /* Wake up the thread */
-     D1(printk("jffs2_garbage_collect_trigger\n"));
-
-     rt_event_send(&sb->s_gc_thread_flags,GC_THREAD_FLAG_TRIG);
-}
-
-static struct rt_thread gc_thread;
-void
-jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
-{
-     struct super_block *sb=OFNI_BS_2SFFJ(c);
-     cyg_mtab_entry *mte;
-     int result;
-	
-     RT_ASSERT(c);
-     //RT_ASSERT(!sb->s_gc_thread_handle);
-	 
-     mte=(cyg_dir *) sb->s_root;
-     RT_ASSERT(mte);
-	 
-     rt_event_init(&sb->s_gc_thread_flags, "gc_event", RT_IPC_FLAG_FIFO);	 
-     rt_mutex_init(&sb->s_lock, "gc_mutex", RT_IPC_FLAG_FIFO);
-//     rt_mutex_init(&mte->fs->syncmode, "fs_lock", RT_IPC_FLAG_FIFO);
-	 
-     D1(printk("jffs2_start_garbage_collect_thread\n"));
-     /* Start the thread. Doesn't matter if it fails -- it's only an
-      * optimisation anyway */
-     result =  rt_thread_init(&sb->s_gc_thread, 
-	                   "jffs2_gc_thread",
-                       jffs2_garbage_collect_thread,
-                       (void *)c,
-                       (void*)sb->s_gc_thread_stack,
-                       sizeof(sb->s_gc_thread_stack),
-					   CYGNUM_JFFS2_GC_THREAD_PRIORITY,
-					   CYGNUM_JFFS2_GC_THREAD_TICKS
-					   );
-	 if (result != RT_EOK) {
-		 rt_thread_startup(&sb->s_gc_thread);
-		 /* how to deal with the following filed? */
-		 /* sb->s_gc_thread_handle; */
-	 }
-}
-
-void
-jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c)
-{
-     struct super_block *sb=OFNI_BS_2SFFJ(c);
-     cyg_mtab_entry *mte;
-     rt_uint32_t  e;
-     rt_err_t result;
-	 
-     //RT_ASSERT(sb->s_gc_thread_handle);
-
-     D1(printk("jffs2_stop_garbage_collect_thread\n"));
-     /* Stop the thread and wait for it if necessary */
-
-     rt_event_send(&sb->s_gc_thread_flags,GC_THREAD_FLAG_STOP);
-
-     D1(printk("jffs2_stop_garbage_collect_thread wait\n"));
-	 
-     result = rt_event_recv(&sb->s_gc_thread_flags,
-                   GC_THREAD_FLAG_HAS_EXIT,
-                   RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR,
-				   RT_WAITING_FOREVER,  &e);
-     if (result == -RT_ETIMEOUT) 
-     {
-       LOG_E("wait completed timeout");
-       return;
-     }
-     else if (result == -RT_ERROR)
-     {
-       LOG_E("event received error");
-       return;
-     }
-
-     // Kill and free the resources ...  this is safe due to the flag
-     // from the thread.
-     rt_thread_detach(&sb->s_gc_thread);
-     rt_sem_detach(&sb->s_lock);
-     rt_event_detach(&sb->s_gc_thread_flags);
-}
-
-
-static void
-jffs2_garbage_collect_thread(unsigned long data)
-{
-     struct jffs2_sb_info *c=(struct jffs2_sb_info *)data;
-     struct super_block *sb=OFNI_BS_2SFFJ(c);
-     cyg_mtab_entry *mte;
-     rt_uint32_t flag = 0;
-     rt_err_t result;
-	 
-     D1(printk("jffs2_garbage_collect_thread START\n"));
-
-     while(1) {
-          result = rt_event_recv(&sb->s_gc_thread_flags,
-                        GC_THREAD_FLAG_TRIG | GC_THREAD_FLAG_STOP,
-                        RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR,
-				        cyg_current_time() + CYGNUM_JFFS2_GS_THREAD_TICKS,  
-						&flag);
-          if (result == -RT_ETIMEOUT) 
-          {
-            LOG_E("wait completed timeout");
-            continue;
-          }
-          else if (result == -RT_ERROR) 
-          {
-            LOG_E("event received error");
-            continue;
-          }
-
-          if (flag & GC_THREAD_FLAG_STOP)
-               break;
-
-          D1(printk("jffs2: GC THREAD GC BEGIN\n"));
-
-          mte=(cyg_dir *) sb->s_root;
-          RT_ASSERT(mte != NULL);
-//          rt_mutex_take(&mte->fs->syncmode, RT_WAITING_FOREVER);
-
-          if (jffs2_garbage_collect_pass(c) == -ENOSPC) {
-               printf("No space for garbage collection. "
-                      "Aborting JFFS2 GC thread\n");
-               break;
-          }
-//          rt_mutex_release(&mte->fs->syncmode);
-          D1(printk("jffs2: GC THREAD GC END\n"));
-     }
-
-     D1(printk("jffs2_garbage_collect_thread EXIT\n"));
-     rt_event_send(&sb->s_gc_thread_flags,GC_THREAD_FLAG_HAS_EXIT);	 
-}
-#endif
diff --git a/components/dfs/filesystems/jffs2/src/histo.h b/components/dfs/filesystems/jffs2/src/histo.h
deleted file mode 100644
index 84f184f083..0000000000
--- a/components/dfs/filesystems/jffs2/src/histo.h
+++ /dev/null
@@ -1,3 +0,0 @@
-/* This file provides the bit-probabilities for the input file */
-#define BIT_DIVIDER 629 
-static int bits[9] = { 179,167,183,165,159,198,178,119,}; /* ia32 .so files */
diff --git a/components/dfs/filesystems/jffs2/src/histo_mips.h b/components/dfs/filesystems/jffs2/src/histo_mips.h
deleted file mode 100644
index 9a443268d8..0000000000
--- a/components/dfs/filesystems/jffs2/src/histo_mips.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#define BIT_DIVIDER_MIPS 1043 
-static int bits_mips[8] = { 277,249,290,267,229,341,212,241}; /* mips32 */
diff --git a/components/dfs/filesystems/jffs2/src/malloc-ecos.c b/components/dfs/filesystems/jffs2/src/malloc-ecos.c
deleted file mode 100644
index df6e3c0f5d..0000000000
--- a/components/dfs/filesystems/jffs2/src/malloc-ecos.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Free Software Foundation, Inc.
- *
- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: malloc-ecos.c,v 1.4 2003/11/26 15:55:35 dwmw2 Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <cyg/hal/drv_api.h>
-#include "nodelist.h"
-
-#if !defined(CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE)
-# define CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE 0
-#endif
-
-struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
-{
-	return rt_malloc(sizeof(struct jffs2_full_dirent) + namesize);
-}
-
-void jffs2_free_full_dirent(struct jffs2_full_dirent *x)
-{
-	rt_free(x);
-}
-
-struct jffs2_full_dnode *jffs2_alloc_full_dnode(void)
-{
-	return rt_malloc(sizeof(struct jffs2_full_dnode));
-}
-
-void jffs2_free_full_dnode(struct jffs2_full_dnode *x)
-{
-	rt_free(x);
-}
-
-struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void)
-{
-	return rt_malloc(sizeof(struct jffs2_raw_dirent));
-}
-
-void jffs2_free_raw_dirent(struct jffs2_raw_dirent *x)
-{
-	rt_free(x);
-}
-
-struct jffs2_raw_inode *jffs2_alloc_raw_inode(void)
-{
-	return rt_malloc(sizeof(struct jffs2_raw_inode));
-}
-
-void jffs2_free_raw_inode(struct jffs2_raw_inode *x)
-{
-	rt_free(x);
-}
-
-struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void)
-{
-	return rt_malloc(sizeof(struct jffs2_tmp_dnode_info));
-}
-
-void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
-{
-	rt_free(x);
-}
-
-struct jffs2_node_frag *jffs2_alloc_node_frag(void)
-{
-	return rt_malloc(sizeof(struct jffs2_node_frag));
-}
-
-void jffs2_free_node_frag(struct jffs2_node_frag *x)
-{
-	rt_free(x);
-}
-
-#if CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE == 0
-
-int jffs2_create_slab_caches(void)
-{
-	return 0;
-}
-
-void jffs2_destroy_slab_caches(void)
-{
-}
-
-struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
-{
-	return rt_malloc(sizeof(struct jffs2_raw_node_ref));
-}
-
-void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
-{
-	rt_free(x);
-}
-
-#else // CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE == 0
-
-static struct jffs2_raw_node_ref
-	rnr_pool[CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE] __attribute__ ((aligned (4))),
-	* first = NULL;
-static cyg_drv_mutex_t mutex;
-
-int jffs2_create_slab_caches(void)
-{
-	struct jffs2_raw_node_ref * p;
-	cyg_drv_mutex_init(&mutex);
-	for (
-		p = rnr_pool;
-		p < rnr_pool + CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE - 1;
-		p++
-	)
-		p->next_phys = p + 1;
-	rnr_pool[CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE - 1].next_phys = NULL;
-	first = &rnr_pool[0];
-	return 0;
-}
-
-void jffs2_destroy_slab_caches(void)
-{
-}
-
-struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
-{
-	struct jffs2_raw_node_ref * p;
-	
-	cyg_drv_mutex_lock(&mutex);
-	p = first;
-	if (p != NULL)
-		first = p->next_phys;
-	cyg_drv_mutex_unlock(&mutex);
-	return p;
-}
-
-void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
-{
-	cyg_drv_mutex_lock(&mutex);
-	x->next_phys = first;
-	first = x;
-	cyg_drv_mutex_unlock(&mutex);
-}
-
-#endif // CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE == 0
-
-struct jffs2_inode_cache *jffs2_alloc_inode_cache(void)
-{
-	struct jffs2_inode_cache *ret = rt_malloc(sizeof(struct jffs2_inode_cache));
-	D1(printk(KERN_DEBUG "Allocated inocache at %p\n", ret));
-	return ret;
-}
-
-void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
-{
-	D1(printk(KERN_DEBUG "Freeing inocache at %p\n", x));
-	rt_free(x);
-}
-
diff --git a/components/dfs/filesystems/jffs2/src/nodelist.c b/components/dfs/filesystems/jffs2/src/nodelist.c
deleted file mode 100644
index aee9d88cff..0000000000
--- a/components/dfs/filesystems/jffs2/src/nodelist.c
+++ /dev/null
@@ -1,534 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: nodelist.c,v 1.102 2005/07/28 12:45:10 dedekind Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/mtd/mtd.h>
-#include <linux/rbtree.h>
-#include <linux/crc32.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include "nodelist.h"
-
-void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list)
-{
-	struct jffs2_full_dirent **prev = list;
-	
-	JFFS2_DBG_DENTLIST("add dirent \"%s\", ino #%u\n", new->name, new->ino);
-
-	while ((*prev) && (*prev)->nhash <= new->nhash) {
-		if ((*prev)->nhash == new->nhash && !strcmp((const char *)((*prev)->name), (const char *)new->name)) {
-			/* Duplicate. Free one */
-			if (new->version < (*prev)->version) {
-				JFFS2_DBG_DENTLIST("Eep! Marking new dirent node is obsolete, old is \"%s\", ino #%u\n",
-					(*prev)->name, (*prev)->ino);
-				jffs2_mark_node_obsolete(c, new->raw);
-				jffs2_free_full_dirent(new);
-			} else {
-				JFFS2_DBG_DENTLIST("marking old dirent \"%s\", ino #%u bsolete\n",
-					(*prev)->name, (*prev)->ino);
-				new->next = (*prev)->next;
-				jffs2_mark_node_obsolete(c, ((*prev)->raw));
-				jffs2_free_full_dirent(*prev);
-				*prev = new;
-			}
-			return;
-		}
-		prev = &((*prev)->next);
-	}
-	new->next = *prev;
-	*prev = new;
-}
-
-void jffs2_obsolete_node_frag(struct jffs2_sb_info *c, struct jffs2_node_frag *this)
-{
-	if (this->node) {
-		this->node->frags--;
-		if (!this->node->frags) {
-			/* The node has no valid frags left. It's totally obsoleted */
-			JFFS2_DBG_FRAGTREE2("marking old node @0x%08x (0x%04x-0x%04x) obsolete\n",
-				ref_offset(this->node->raw), this->node->ofs, this->node->ofs+this->node->size);
-			jffs2_mark_node_obsolete(c, this->node->raw);
-			jffs2_free_full_dnode(this->node);
-		} else {
-			JFFS2_DBG_FRAGTREE2("marking old node @0x%08x (0x%04x-0x%04x) REF_NORMAL. frags is %d\n",
-				ref_offset(this->node->raw), this->node->ofs, this->node->ofs+this->node->size, this->node->frags);
-			mark_ref_normal(this->node->raw);
-		}
-		
-	}
-	jffs2_free_node_frag(this);
-}
-
-static void jffs2_fragtree_insert(struct jffs2_node_frag *newfrag, struct jffs2_node_frag *base)
-{
-	struct rb_node *parent = &base->rb;
-	struct rb_node **link = &parent;
-
-	JFFS2_DBG_FRAGTREE2("insert frag (0x%04x-0x%04x)\n", newfrag->ofs, newfrag->ofs + newfrag->size);
-
-	while (*link) {
-		parent = *link;
-		base = rb_entry(parent, struct jffs2_node_frag, rb);
-	
-		JFFS2_DBG_FRAGTREE2("considering frag at 0x%08x\n", base->ofs);
-		if (newfrag->ofs > base->ofs)
-			link = &base->rb.rb_right;
-		else if (newfrag->ofs < base->ofs)
-			link = &base->rb.rb_left;
-		else {
-			JFFS2_ERROR("duplicate frag at %08x (%p,%p)\n", newfrag->ofs, newfrag, base);
-			BUG();
-		}
-	}
-
-	rb_link_node(&newfrag->rb, &base->rb, link);
-}
-
-/* Doesn't set inode->i_size */
-static int jffs2_add_frag_to_fragtree(struct jffs2_sb_info *c, struct rb_root *list, struct jffs2_node_frag *newfrag)
-{
-	struct jffs2_node_frag *this;
-	uint32_t lastend;
-
-	/* Skip all the nodes which are completed before this one starts */
-	this = jffs2_lookup_node_frag(list, newfrag->node->ofs);
-
-	if (this) {
-		JFFS2_DBG_FRAGTREE2("lookup gave frag 0x%04x-0x%04x; phys 0x%08x (*%p)\n",
-			  this->ofs, this->ofs+this->size, this->node?(ref_offset(this->node->raw)):0xffffffff, this);
-		lastend = this->ofs + this->size;
-	} else {
-		JFFS2_DBG_FRAGTREE2("lookup gave no frag\n");
-		lastend = 0;
-	}
-			  
-	/* See if we ran off the end of the list */
-	if (lastend <= newfrag->ofs) {
-		/* We did */
-
-		/* Check if 'this' node was on the same page as the new node.
-		   If so, both 'this' and the new node get marked REF_NORMAL so
-		   the GC can take a look.
-		*/
-		if (lastend && (lastend-1) >> PAGE_CACHE_SHIFT == newfrag->ofs >> PAGE_CACHE_SHIFT) {
-			if (this->node)
-				mark_ref_normal(this->node->raw);
-			mark_ref_normal(newfrag->node->raw);
-		}
-
-		if (lastend < newfrag->node->ofs) {
-			/* ... and we need to put a hole in before the new node */
-			struct jffs2_node_frag *holefrag = jffs2_alloc_node_frag();
-			if (!holefrag) {
-				jffs2_free_node_frag(newfrag);
-				return -ENOMEM;
-			}
-			holefrag->ofs = lastend;
-			holefrag->size = newfrag->node->ofs - lastend;
-			holefrag->node = NULL;
-			if (this) {
-				/* By definition, the 'this' node has no right-hand child, 
-				   because there are no frags with offset greater than it.
-				   So that's where we want to put the hole */
-				JFFS2_DBG_FRAGTREE2("adding hole frag (%p) on right of node at (%p)\n", holefrag, this);
-				rb_link_node(&holefrag->rb, &this->rb, &this->rb.rb_right);
-			} else {
-				JFFS2_DBG_FRAGTREE2("adding hole frag (%p) at root of tree\n", holefrag);
-				rb_link_node(&holefrag->rb, NULL, &list->rb_node);
-			}
-			rb_insert_color(&holefrag->rb, list);
-			this = holefrag;
-		}
-		if (this) {
-			/* By definition, the 'this' node has no right-hand child, 
-			   because there are no frags with offset greater than it.
-			   So that's where we want to put new fragment */
-			JFFS2_DBG_FRAGTREE2("adding new frag (%p) on right of node at (%p)\n", newfrag, this);
-			rb_link_node(&newfrag->rb, &this->rb, &this->rb.rb_right);			
-		} else {
-			JFFS2_DBG_FRAGTREE2("adding new frag (%p) at root of tree\n", newfrag);
-			rb_link_node(&newfrag->rb, NULL, &list->rb_node);
-		}
-		rb_insert_color(&newfrag->rb, list);
-		return 0;
-	}
-
-	JFFS2_DBG_FRAGTREE2("dealing with frag 0x%04x-0x%04x; phys 0x%08x (*%p)\n", 
-		  this->ofs, this->ofs+this->size, this->node?(ref_offset(this->node->raw)):0xffffffff, this);
-
-	/* OK. 'this' is pointing at the first frag that newfrag->ofs at least partially obsoletes,
-	 * - i.e. newfrag->ofs < this->ofs+this->size && newfrag->ofs >= this->ofs  
-	 */
-	if (newfrag->ofs > this->ofs) {
-		/* This node isn't completely obsoleted. The start of it remains valid */
-
-		/* Mark the new node and the partially covered node REF_NORMAL -- let
-		   the GC take a look at them */
-		mark_ref_normal(newfrag->node->raw);
-		if (this->node)
-			mark_ref_normal(this->node->raw);
-
-		if (this->ofs + this->size > newfrag->ofs + newfrag->size) {
-			/* The new node splits 'this' frag into two */
-			struct jffs2_node_frag *newfrag2 = jffs2_alloc_node_frag();
-			if (!newfrag2) {
-				jffs2_free_node_frag(newfrag);
-				return -ENOMEM;
-			}
-			if (this->node)
-				JFFS2_DBG_FRAGTREE2("split old frag 0x%04x-0x%04x, phys 0x%08x\n",
-					this->ofs, this->ofs+this->size, ref_offset(this->node->raw));
-			else 
-				JFFS2_DBG_FRAGTREE2("split old hole frag 0x%04x-0x%04x\n",
-					this->ofs, this->ofs+this->size, ref_offset(this->node->raw));
-			
-			/* New second frag pointing to this's node */
-			newfrag2->ofs = newfrag->ofs + newfrag->size;
-			newfrag2->size = (this->ofs+this->size) - newfrag2->ofs;
-			newfrag2->node = this->node;
-			if (this->node)
-				this->node->frags++;
-
-			/* Adjust size of original 'this' */
-			this->size = newfrag->ofs - this->ofs;
-
-			/* Now, we know there's no node with offset
-			   greater than this->ofs but smaller than
-			   newfrag2->ofs or newfrag->ofs, for obvious
-			   reasons. So we can do a tree insert from
-			   'this' to insert newfrag, and a tree insert
-			   from newfrag to insert newfrag2. */
-			jffs2_fragtree_insert(newfrag, this);
-			rb_insert_color(&newfrag->rb, list);
-			
-			jffs2_fragtree_insert(newfrag2, newfrag);
-			rb_insert_color(&newfrag2->rb, list);
-			
-			return 0;
-		}
-		/* New node just reduces 'this' frag in size, doesn't split it */
-		this->size = newfrag->ofs - this->ofs;
-
-		/* Again, we know it lives down here in the tree */
-		jffs2_fragtree_insert(newfrag, this);
-		rb_insert_color(&newfrag->rb, list);
-	} else {
-		/* New frag starts at the same point as 'this' used to. Replace 
-		   it in the tree without doing a delete and insertion */
-		JFFS2_DBG_FRAGTREE2("inserting newfrag (*%p),%d-%d in before 'this' (*%p),%d-%d\n",
-			  newfrag, newfrag->ofs, newfrag->ofs+newfrag->size, this, this->ofs, this->ofs+this->size);
-	
-		rb_replace_node(&this->rb, &newfrag->rb, list);
-		
-		if (newfrag->ofs + newfrag->size >= this->ofs+this->size) {
-			JFFS2_DBG_FRAGTREE2("obsoleting node frag %p (%x-%x)\n", this, this->ofs, this->ofs+this->size);
-			jffs2_obsolete_node_frag(c, this);
-		} else {
-			this->ofs += newfrag->size;
-			this->size -= newfrag->size;
-
-			jffs2_fragtree_insert(this, newfrag);
-			rb_insert_color(&this->rb, list);
-			return 0;
-		}
-	}
-	/* OK, now we have newfrag added in the correct place in the tree, but
-	   frag_next(newfrag) may be a fragment which is overlapped by it 
-	*/
-	while ((this = frag_next(newfrag)) && newfrag->ofs + newfrag->size >= this->ofs + this->size) {
-		/* 'this' frag is obsoleted completely. */
-		JFFS2_DBG_FRAGTREE2("obsoleting node frag %p (%x-%x) and removing from tree\n",
-			this, this->ofs, this->ofs+this->size);
-		rb_erase(&this->rb, list);
-		jffs2_obsolete_node_frag(c, this);
-	}
-	/* Now we're pointing at the first frag which isn't totally obsoleted by 
-	   the new frag */
-
-	if (!this || newfrag->ofs + newfrag->size == this->ofs) {
-		return 0;
-	}
-	/* Still some overlap but we don't need to move it in the tree */
-	this->size = (this->ofs + this->size) - (newfrag->ofs + newfrag->size);
-	this->ofs = newfrag->ofs + newfrag->size;
-
-	/* And mark them REF_NORMAL so the GC takes a look at them */
-	if (this->node)
-		mark_ref_normal(this->node->raw);
-	mark_ref_normal(newfrag->node->raw);
-
-	return 0;
-}
-
-/* Given an inode, probably with existing list of fragments, add the new node
- * to the fragment list.
- */
-int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn)
-{
-	int ret;
-	struct jffs2_node_frag *newfrag;
-
-	if (unlikely(!fn->size))
-		return 0;
-
-	newfrag = jffs2_alloc_node_frag();
-	if (unlikely(!newfrag))
-		return -ENOMEM;
-
-	JFFS2_DBG_FRAGTREE("adding node %#04x-%#04x @0x%08x on flash, newfrag *%p\n",
-		  fn->ofs, fn->ofs+fn->size, ref_offset(fn->raw), newfrag);
-	
-	newfrag->ofs = fn->ofs;
-	newfrag->size = fn->size;
-	newfrag->node = fn;
-	newfrag->node->frags = 1;
-
-	ret = jffs2_add_frag_to_fragtree(c, &f->fragtree, newfrag);
-	if (unlikely(ret))
-		return ret;
-
-	/* If we now share a page with other nodes, mark either previous
-	   or next node REF_NORMAL, as appropriate.  */
-	if (newfrag->ofs & (PAGE_CACHE_SIZE-1)) {
-		struct jffs2_node_frag *prev = frag_prev(newfrag);
-
-		mark_ref_normal(fn->raw);
-		/* If we don't start at zero there's _always_ a previous */	
-		if (prev->node)
-			mark_ref_normal(prev->node->raw);
-	}
-
-	if ((newfrag->ofs+newfrag->size) & (PAGE_CACHE_SIZE-1)) {
-		struct jffs2_node_frag *next = frag_next(newfrag);
-		
-		if (next) {
-			mark_ref_normal(fn->raw);
-			if (next->node)
-				mark_ref_normal(next->node->raw);
-		}
-	}
-	jffs2_dbg_fragtree_paranoia_check_nolock(f);
-	jffs2_dbg_dump_fragtree_nolock(f);
-	return 0;
-}
-
-
-void jffs2_set_inocache_state(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, int state)
-{
-	spin_lock(&c->inocache_lock);
-	ic->state = state;
-	wake_up(&c->inocache_wq);
-	spin_unlock(&c->inocache_lock);
-}
-
-/* During mount, this needs no locking. During normal operation, its
-   callers want to do other stuff while still holding the inocache_lock.
-   Rather than introducing special case get_ino_cache functions or 
-   callbacks, we just let the caller do the locking itself. */
-   
-struct jffs2_inode_cache *jffs2_get_ino_cache(struct jffs2_sb_info *c, uint32_t ino)
-{
-	struct jffs2_inode_cache *ret;
-
-	ret = c->inocache_list[ino % INOCACHE_HASHSIZE];
-	while (ret && ret->ino < ino) {
-		ret = ret->next;
-	}
-	
-	if (ret && ret->ino != ino)
-		ret = NULL;
-
-	return ret;
-}
-
-void jffs2_add_ino_cache (struct jffs2_sb_info *c, struct jffs2_inode_cache *new)
-{
-	struct jffs2_inode_cache **prev;
-
-	spin_lock(&c->inocache_lock);
-	if (!new->ino)
-		new->ino = ++c->highest_ino;
-
-	JFFS2_DBG_INOCACHE("add %p (ino #%u)\n", new, new->ino);
-
-	prev = &c->inocache_list[new->ino % INOCACHE_HASHSIZE];
-
-	while ((*prev) && (*prev)->ino < new->ino) {
-		prev = &(*prev)->next;
-	}
-	new->next = *prev;
-	*prev = new;
-
-	spin_unlock(&c->inocache_lock);
-}
-
-void jffs2_del_ino_cache(struct jffs2_sb_info *c, struct jffs2_inode_cache *old)
-{
-	struct jffs2_inode_cache **prev;
-
-	JFFS2_DBG_INOCACHE("del %p (ino #%u)\n", old, old->ino);
-	spin_lock(&c->inocache_lock);
-	
-	prev = &c->inocache_list[old->ino % INOCACHE_HASHSIZE];
-	
-	while ((*prev) && (*prev)->ino < old->ino) {
-		prev = &(*prev)->next;
-	}
-	if ((*prev) == old) {
-		*prev = old->next;
-	}
-
-	/* Free it now unless it's in READING or CLEARING state, which
-	   are the transitions upon read_inode() and clear_inode(). The
-	   rest of the time we know nobody else is looking at it, and 
-	   if it's held by read_inode() or clear_inode() they'll free it
-	   for themselves. */
-	if (old->state != INO_STATE_READING && old->state != INO_STATE_CLEARING)
-		jffs2_free_inode_cache(old);
-
-	spin_unlock(&c->inocache_lock);
-}
-
-void jffs2_free_ino_caches(struct jffs2_sb_info *c)
-{
-	int i;
-	struct jffs2_inode_cache *this, *next;
-	
-	for (i=0; i<INOCACHE_HASHSIZE; i++) {
-		this = c->inocache_list[i];
-		while (this) {
-			next = this->next;
-			jffs2_free_inode_cache(this);
-			this = next;
-		}
-		c->inocache_list[i] = NULL;
-	}
-}
-
-void jffs2_free_raw_node_refs(struct jffs2_sb_info *c)
-{
-	int i;
-	struct jffs2_raw_node_ref *this, *next;
-
-	for (i=0; i<c->nr_blocks; i++) {
-		this = c->blocks[i].first_node;
-		while(this) {
-			next = this->next_phys;
-			jffs2_free_raw_node_ref(this);
-			this = next;
-		}
-		c->blocks[i].first_node = c->blocks[i].last_node = NULL;
-	}
-}
-	
-struct jffs2_node_frag *jffs2_lookup_node_frag(struct rb_root *fragtree, uint32_t offset)
-{
-	/* The common case in lookup is that there will be a node 
-	   which precisely matches. So we go looking for that first */
-	struct rb_node *next;
-	struct jffs2_node_frag *prev = NULL;
-	struct jffs2_node_frag *frag = NULL;
-
-	JFFS2_DBG_FRAGTREE2("root %p, offset %d\n", fragtree, offset);
-
-	next = fragtree->rb_node;
-
-	while(next) {
-		frag = rb_entry(next, struct jffs2_node_frag, rb);
-
-		JFFS2_DBG_FRAGTREE2("considering frag %#04x-%#04x (%p). left %p, right %p\n",
-			  frag->ofs, frag->ofs+frag->size, frag, frag->rb.rb_left, frag->rb.rb_right);
-		if (frag->ofs + frag->size <= offset) {
-			JFFS2_DBG_FRAGTREE2("going right from frag %#04x-%#04x, before the region we care about\n",
-				  frag->ofs, frag->ofs+frag->size);
-			/* Remember the closest smaller match on the way down */
-			if (!prev || frag->ofs > prev->ofs)
-				prev = frag;
-			next = frag->rb.rb_right;
-		} else if (frag->ofs > offset) {
-			JFFS2_DBG_FRAGTREE2("going left from frag %#04x-%#04x, after the region we care about\n",
-				  frag->ofs, frag->ofs+frag->size);
-			next = frag->rb.rb_left;
-		} else {
-			JFFS2_DBG_FRAGTREE2("returning frag %#04x-%#04x, matched\n",
-				  frag->ofs, frag->ofs+frag->size);
-			return frag;
-		}
-	}
-
-	/* Exact match not found. Go back up looking at each parent,
-	   and return the closest smaller one */
-
-	if (prev)
-		JFFS2_DBG_FRAGTREE2("no match. Returning frag %#04x-%#04x, closest previous\n",
-			  prev->ofs, prev->ofs+prev->size);
-	else 
-		JFFS2_DBG_FRAGTREE2("returning NULL, empty fragtree\n");
-	
-	return prev;
-}
-
-/* Pass 'c' argument to indicate that nodes should be marked obsolete as
-   they're killed. */
-void jffs2_kill_fragtree(struct rb_root *root, struct jffs2_sb_info *c)
-{
-	struct jffs2_node_frag *frag;
-	struct jffs2_node_frag *parent;
-
-	if (!root->rb_node)
-		return;
-
-	JFFS2_DBG_FRAGTREE("killing\n");
-	
-	frag = (rb_entry(root->rb_node, struct jffs2_node_frag, rb));
-	while(frag) {
-		if (frag->rb.rb_left) {
-			JFFS2_DBG_FRAGTREE2("going left from frag (%p) %#04x-%#04x\n",
-				frag, frag->ofs, frag->ofs+frag->size);
-			frag = frag_left(frag);
-			continue;
-		}
-		if (frag->rb.rb_right) {
-			JFFS2_DBG_FRAGTREE2("going right from frag (%p) %#04x-%#04x\n", 
-				  frag, frag->ofs, frag->ofs+frag->size);
-			frag = frag_right(frag);
-			continue;
-		}
-
-		JFFS2_DBG_FRAGTREE2("frag %#04x-%#04x: node %p, frags %d\n",
-			  frag->ofs, frag->ofs+frag->size, frag->node, frag->node?frag->node->frags:0);
-			
-		if (frag->node && !(--frag->node->frags)) {
-			/* Not a hole, and it's the final remaining frag 
-			   of this node. Free the node */
-			if (c)
-				jffs2_mark_node_obsolete(c, frag->node->raw);
-			
-			jffs2_free_full_dnode(frag->node);
-		}
-		parent = frag_parent(frag);
-		if (parent) {
-			if (frag_left(parent) == frag)
-				parent->rb.rb_left = NULL;
-			else 
-				parent->rb.rb_right = NULL;
-		}
-
-		jffs2_free_node_frag(frag);
-		frag = parent;
-
-		cond_resched();
-	}
-}
diff --git a/components/dfs/filesystems/jffs2/src/nodelist.h b/components/dfs/filesystems/jffs2/src/nodelist.h
deleted file mode 100644
index 53cdb49bbf..0000000000
--- a/components/dfs/filesystems/jffs2/src/nodelist.h
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: nodelist.h,v 1.135 2005/07/27 14:46:11 dedekind Exp $
- *
- */
-
-#ifndef __JFFS2_NODELIST_H__
-#define __JFFS2_NODELIST_H__
-
-#include "jffs2_config.h"
-#include <linux/config.h>
-#include <linux/fs.h>
-#include <linux/types.h>
-#include <linux/jffs2.h>
-#include <linux/jffs2_fs_sb.h>
-#include <linux/jffs2_fs_i.h>
-
-#ifdef __ECOS
-#include "os-ecos.h"
-#elif defined(RT_THREAD)
-#include "os-rtthread.h"
-#else
-#include <linux/mtd/compatmac.h> /* For compatibility with older kernels */
-#include "os-linux.h"
-#endif
-
-#define JFFS2_NATIVE_ENDIAN
-
-/* Note we handle mode bits conversion from JFFS2 (i.e. Linux) to/from
-   whatever OS we're actually running on here too. */
-
-#if defined(JFFS2_NATIVE_ENDIAN)
-#if defined (__GNUC__) 
-#define cpu_to_je16(x) ((jint16_t){x})
-#define cpu_to_je32(x) ((jint32_t){x})
-#define cpu_to_jemode(x) ((jmode_t){os_to_jffs2_mode(x)})
-
-#define je16_to_cpu(x) ((x).v16)
-#define je32_to_cpu(x) ((x).v32)
-#define jemode_to_cpu(x) (jffs2_to_os_mode((x).m))
-#elif defined (MSVC)
-#define cpu_to_je16(x) ((jint16_t)(x))
-#define cpu_to_je32(x) ((jint32_t)(x))
-static __inline jmode_t cpu_to_jemode(x) 
-{
-	jmode_t _x;
-	_x.m = os_to_jffs2_mode(x);
-	return _x;
-}
-
-#define je16_to_cpu(x) (x)
-#define je32_to_cpu(x) (x)
-#define jemode_to_cpu(x) (jffs2_to_os_mode((x).m))
-#else
-#endif
-
-
-#elif defined(JFFS2_BIG_ENDIAN)
-#define cpu_to_je16(x) ((jint16_t){cpu_to_be16(x)})
-#define cpu_to_je32(x) ((jint32_t){cpu_to_be32(x)})
-#define cpu_to_jemode(x) ((jmode_t){cpu_to_be32(os_to_jffs2_mode(x))})
-
-#define je16_to_cpu(x) (be16_to_cpu(x.v16))
-#define je32_to_cpu(x) (be32_to_cpu(x.v32))
-#define jemode_to_cpu(x) (be32_to_cpu(jffs2_to_os_mode((x).m)))
-#elif defined(JFFS2_LITTLE_ENDIAN)
-#define cpu_to_je16(x) ((jint16_t){cpu_to_le16(x)})
-#define cpu_to_je32(x) ((jint32_t){cpu_to_le32(x)})
-#define cpu_to_jemode(x) ((jmode_t){cpu_to_le32(os_to_jffs2_mode(x))})
-
-#define je16_to_cpu(x) (le16_to_cpu(x.v16))
-#define je32_to_cpu(x) (le32_to_cpu(x.v32))
-#define jemode_to_cpu(x) (le32_to_cpu(jffs2_to_os_mode((x).m)))
-#else 
-#error wibble
-#endif
-
-/*
-  This is all we need to keep in-core for each raw node during normal
-  operation. As and when we do read_inode on a particular inode, we can
-  scan the nodes which are listed for it and build up a proper map of 
-  which nodes are currently valid. JFFSv1 always used to keep that whole
-  map in core for each inode.
-*/
-struct jffs2_raw_node_ref
-{
-	struct jffs2_raw_node_ref *next_in_ino; /* Points to the next raw_node_ref
-		for this inode. If this is the last, it points to the inode_cache
-		for this inode instead. The inode_cache will have NULL in the first
-		word so you know when you've got there :) */
-	struct jffs2_raw_node_ref *next_phys;
-	uint32_t flash_offset;
-	uint32_t __totlen; /* This may die; use ref_totlen(c, jeb, ) below */
-};
-
-        /* flash_offset & 3 always has to be zero, because nodes are
-	   always aligned at 4 bytes. So we have a couple of extra bits
-	   to play with, which indicate the node's status; see below: */ 
-#define REF_UNCHECKED	0	/* We haven't yet checked the CRC or built its inode */
-#define REF_OBSOLETE	1	/* Obsolete, can be completely ignored */
-#define REF_PRISTINE	2	/* Completely clean. GC without looking */
-#define REF_NORMAL	3	/* Possibly overlapped. Read the page and write again on GC */
-#define ref_flags(ref)		((ref)->flash_offset & 3)
-#define ref_offset(ref)		((ref)->flash_offset & ~3)
-#define ref_obsolete(ref)	(((ref)->flash_offset & 3) == REF_OBSOLETE)
-#define mark_ref_normal(ref)    do { (ref)->flash_offset = ref_offset(ref) | REF_NORMAL; } while(0)
-
-/* For each inode in the filesystem, we need to keep a record of
-   nlink, because it would be a PITA to scan the whole directory tree
-   at read_inode() time to calculate it, and to keep sufficient information
-   in the raw_node_ref (basically both parent and child inode number for 
-   dirent nodes) would take more space than this does. We also keep
-   a pointer to the first physical node which is part of this inode, too.
-*/
-struct jffs2_inode_cache {
-	struct jffs2_full_dirent *scan_dents; /* Used during scan to hold
-		temporary lists of dirents, and later must be set to
-		NULL to mark the end of the raw_node_ref->next_in_ino
-		chain. */
-	struct jffs2_inode_cache *next;
-	struct jffs2_raw_node_ref *nodes;
-	uint32_t ino;
-	int nlink;
-	int state;
-};
-
-/* Inode states for 'state' above. We need the 'GC' state to prevent
-   someone from doing a read_inode() while we're moving a 'REF_PRISTINE'
-   node without going through all the iget() nonsense */
-#define INO_STATE_UNCHECKED	0	/* CRC checks not yet done */
-#define INO_STATE_CHECKING	1	/* CRC checks in progress */
-#define INO_STATE_PRESENT	2	/* In core */
-#define INO_STATE_CHECKEDABSENT	3	/* Checked, cleared again */
-#define INO_STATE_GC		4	/* GCing a 'pristine' node */
-#define INO_STATE_READING	5	/* In read_inode() */
-#define INO_STATE_CLEARING	6	/* In clear_inode() */
-
-#define INOCACHE_HASHSIZE 128
-
-/*
-  Larger representation of a raw node, kept in-core only when the 
-  struct inode for this particular ino is instantiated.
-*/
-
-struct jffs2_full_dnode
-{
-	struct jffs2_raw_node_ref *raw;
-	uint32_t ofs; /* The offset to which the data of this node belongs */
-	uint32_t size;
-	uint32_t frags; /* Number of fragments which currently refer
-			to this node. When this reaches zero, 
-			the node is obsolete.  */
-};
-
-/* 
-   Even larger representation of a raw node, kept in-core only while
-   we're actually building up the original map of which nodes go where,
-   in read_inode()
-*/
-struct jffs2_tmp_dnode_info
-{
-	struct rb_node rb;
-	struct jffs2_full_dnode *fn;
-	uint32_t version;
-};       
-
-struct jffs2_full_dirent
-{
-	struct jffs2_raw_node_ref *raw;
-	struct jffs2_full_dirent *next;
-	uint32_t version;
-	uint32_t ino; /* == zero for unlink */
-	unsigned int nhash;
-	unsigned char type;
-	unsigned char name[0];
-};
-
-/*
-  Fragments - used to build a map of which raw node to obtain 
-  data from for each part of the ino
-*/
-struct jffs2_node_frag
-{
-	struct rb_node rb;
-	struct jffs2_full_dnode *node; /* NULL for holes */
-	uint32_t size;
-	uint32_t ofs; /* The offset to which this fragment belongs */
-};
-
-struct jffs2_eraseblock
-{
-	struct list_head list;
-	int bad_count;
-	uint32_t offset;		/* of this block in the MTD */
-
-	uint32_t unchecked_size;
-	uint32_t used_size;
-	uint32_t dirty_size;
-	uint32_t wasted_size;
-	uint32_t free_size;	/* Note that sector_size - free_size
-				   is the address of the first free space */
-	struct jffs2_raw_node_ref *first_node;
-	struct jffs2_raw_node_ref *last_node;
-
-	struct jffs2_raw_node_ref *gc_node;	/* Next node to be garbage collected */
-};
-
-/* Calculate totlen from surrounding nodes or eraseblock */
-static inline uint32_t __ref_totlen(struct jffs2_sb_info *c,
-				    struct jffs2_eraseblock *jeb,
-				    struct jffs2_raw_node_ref *ref)
-{
-	uint32_t ref_end;
-	
-	if (ref->next_phys)
-		ref_end = ref_offset(ref->next_phys);
-	else {
-		if (!jeb)
-			jeb = &c->blocks[ref->flash_offset / c->sector_size];
-
-		/* Last node in block. Use free_space */
-		BUG_ON(ref != jeb->last_node);
-		ref_end = jeb->offset + c->sector_size - jeb->free_size;
-	}
-	return ref_end - ref_offset(ref);
-}
-
-static inline uint32_t ref_totlen(struct jffs2_sb_info *c,
-				  struct jffs2_eraseblock *jeb,
-				  struct jffs2_raw_node_ref *ref)
-{
-	uint32_t ret;
-
-#if CONFIG_JFFS2_FS_DEBUG > 0
-	if (jeb && jeb != &c->blocks[ref->flash_offset / c->sector_size]) {
-		printk(KERN_CRIT "ref_totlen called with wrong block -- at 0x%08x instead of 0x%08x; ref 0x%08x\n",
-		       jeb->offset, c->blocks[ref->flash_offset / c->sector_size].offset, ref_offset(ref));
-		BUG();
-	}
-#endif
-
-#if 1
-	ret = ref->__totlen;
-#else
-	/* This doesn't actually work yet */
-	ret = __ref_totlen(c, jeb, ref);
-	if (ret != ref->__totlen) {
-		printk(KERN_CRIT "Totlen for ref at %p (0x%08x-0x%08x) miscalculated as 0x%x instead of %x\n",
-		       ref, ref_offset(ref), ref_offset(ref)+ref->__totlen,
-		       ret, ref->__totlen);
-		if (!jeb)
-			jeb = &c->blocks[ref->flash_offset / c->sector_size];
-		jffs2_dbg_dump_node_refs_nolock(c, jeb);
-		BUG();
-	}
-#endif
-	return ret;
-}
-
-#define ALLOC_NORMAL	0	/* Normal allocation */
-#define ALLOC_DELETION	1	/* Deletion node. Best to allow it */
-#define ALLOC_GC	2	/* Space requested for GC. Give it or die */
-#define ALLOC_NORETRY	3	/* For jffs2_write_dnode: On failure, return -EAGAIN instead of retrying */
-
-/* How much dirty space before it goes on the very_dirty_list */
-#define VERYDIRTY(c, size) ((size) >= ((c)->sector_size / 2))
-
-/* check if dirty space is more than 255 Byte */
-#define ISDIRTY(size) ((size) >  sizeof (struct jffs2_raw_inode) + JFFS2_MIN_DATA_LEN) 
-
-#define PAD(x) (((x)+3)&~3)
-
-static inline struct jffs2_inode_cache *jffs2_raw_ref_to_ic(struct jffs2_raw_node_ref *raw)
-{
-	while(raw->next_in_ino) {
-		raw = raw->next_in_ino;
-	}
-
-	return ((struct jffs2_inode_cache *)raw);
-}
-
-static inline struct jffs2_node_frag *frag_first(struct rb_root *root)
-{
-	struct rb_node *node = root->rb_node;
-
-	if (!node)
-		return NULL;
-	while(node->rb_left)
-		node = node->rb_left;
-	return rb_entry(node, struct jffs2_node_frag, rb);
-}
-
-static inline struct jffs2_node_frag *frag_last(struct rb_root *root)
-{
-	struct rb_node *node = root->rb_node;
-
-	if (!node)
-		return NULL;
-	while(node->rb_right)
-		node = node->rb_right;
-	return rb_entry(node, struct jffs2_node_frag, rb);
-}
-
-#define rb_parent(rb) ((rb)->rb_parent)
-#define frag_next(frag) rb_entry(rb_next(&(frag)->rb), struct jffs2_node_frag, rb)
-#define frag_prev(frag) rb_entry(rb_prev(&(frag)->rb), struct jffs2_node_frag, rb)
-#define frag_parent(frag) rb_entry(rb_parent(&(frag)->rb), struct jffs2_node_frag, rb)
-#define frag_left(frag) rb_entry((frag)->rb.rb_left, struct jffs2_node_frag, rb)
-#define frag_right(frag) rb_entry((frag)->rb.rb_right, struct jffs2_node_frag, rb)
-#define frag_erase(frag, list) rb_erase(&frag->rb, list);
-
-/* nodelist.c */
-void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list);
-void jffs2_set_inocache_state(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, int state);
-struct jffs2_inode_cache *jffs2_get_ino_cache(struct jffs2_sb_info *c, uint32_t ino);
-void jffs2_add_ino_cache (struct jffs2_sb_info *c, struct jffs2_inode_cache *new);
-void jffs2_del_ino_cache(struct jffs2_sb_info *c, struct jffs2_inode_cache *old);
-void jffs2_free_ino_caches(struct jffs2_sb_info *c);
-void jffs2_free_raw_node_refs(struct jffs2_sb_info *c);
-struct jffs2_node_frag *jffs2_lookup_node_frag(struct rb_root *fragtree, uint32_t offset);
-void jffs2_kill_fragtree(struct rb_root *root, struct jffs2_sb_info *c_delete);
-struct rb_node *rb_next(struct rb_node *);
-struct rb_node *rb_prev(struct rb_node *);
-void rb_replace_node(struct rb_node *victim, struct rb_node *new, struct rb_root *root);
-void jffs2_obsolete_node_frag(struct jffs2_sb_info *c, struct jffs2_node_frag *this);
-int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn);
-
-/* nodemgmt.c */
-int jffs2_thread_should_wake(struct jffs2_sb_info *c);
-int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len, int prio);
-int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len);
-int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new);
-void jffs2_complete_reservation(struct jffs2_sb_info *c);
-void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *raw);
-
-/* write.c */
-int jffs2_do_new_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, uint32_t mode, struct jffs2_raw_inode *ri);
-
-struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const unsigned char *data, uint32_t datalen, uint32_t flash_ofs, int alloc_mode);
-struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_dirent *rd, const unsigned char *name, uint32_t namelen, uint32_t flash_ofs, int alloc_mode);
-int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-			    struct jffs2_raw_inode *ri, unsigned char *buf, 
-			    uint32_t offset, uint32_t writelen, uint32_t *retlen);
-int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const char *name, int namelen);
-int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, const char *name, int namelen, struct jffs2_inode_info *dead_f);
-int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint32_t ino, uint8_t type, const char *name, int namelen);
-
-
-/* readinode.c */
-void jffs2_truncate_fragtree (struct jffs2_sb_info *c, struct rb_root *list, uint32_t size);
-int jffs2_do_read_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, 
-			uint32_t ino, struct jffs2_raw_inode *latest_node);
-int jffs2_do_crccheck_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic);
-void jffs2_do_clear_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
-
-/* malloc.c */
-int jffs2_create_slab_caches(void);
-void jffs2_destroy_slab_caches(void);
-
-struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize);
-void jffs2_free_full_dirent(struct jffs2_full_dirent *);
-struct jffs2_full_dnode *jffs2_alloc_full_dnode(void);
-void jffs2_free_full_dnode(struct jffs2_full_dnode *);
-struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void);
-void jffs2_free_raw_dirent(struct jffs2_raw_dirent *);
-struct jffs2_raw_inode *jffs2_alloc_raw_inode(void);
-void jffs2_free_raw_inode(struct jffs2_raw_inode *);
-struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void);
-void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *);
-struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void);
-void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *);
-struct jffs2_node_frag *jffs2_alloc_node_frag(void);
-void jffs2_free_node_frag(struct jffs2_node_frag *);
-struct jffs2_inode_cache *jffs2_alloc_inode_cache(void);
-void jffs2_free_inode_cache(struct jffs2_inode_cache *);
-
-/* gc.c */
-int jffs2_garbage_collect_pass(struct jffs2_sb_info *c);
-
-/* read.c */
-int jffs2_read_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-		     struct jffs2_full_dnode *fd, unsigned char *buf,
-		     int ofs, int len);
-int jffs2_read_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-			   unsigned char *buf, uint32_t offset, uint32_t len);
-char *jffs2_getlink(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
-
-/* scan.c */
-int jffs2_scan_medium(struct jffs2_sb_info *c);
-void jffs2_rotate_lists(struct jffs2_sb_info *c);
-
-/* build.c */
-int jffs2_do_mount_fs(struct jffs2_sb_info *c);
-
-/* erase.c */
-void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count);
-
-#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-/* wbuf.c */
-int jffs2_flush_wbuf_gc(struct jffs2_sb_info *c, uint32_t ino);
-int jffs2_flush_wbuf_pad(struct jffs2_sb_info *c);
-int jffs2_check_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-#endif
-
-#include "debug.h"
-
-#endif /* __JFFS2_NODELIST_H__ */
diff --git a/components/dfs/filesystems/jffs2/src/nodemgmt.c b/components/dfs/filesystems/jffs2/src/nodemgmt.c
deleted file mode 100644
index ef2167aadc..0000000000
--- a/components/dfs/filesystems/jffs2/src/nodemgmt.c
+++ /dev/null
@@ -1,680 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: nodemgmt.c,v 1.124 2005/07/20 15:32:28 dedekind Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/mtd/mtd.h>
-#include <linux/compiler.h>
-#include <linux/sched.h> /* For cond_resched() */
-#include "nodelist.h"
-
-/**
- *	jffs2_reserve_space - request physical space to write nodes to flash
- *	@c: superblock info
- *	@minsize: Minimum acceptable size of allocation
- *	@ofs: Returned value of node offset
- *	@len: Returned value of allocation length
- *	@prio: Allocation type - ALLOC_{NORMAL,DELETION}
- *
- *	Requests a block of physical space on the flash. Returns zero for success
- *	and puts 'ofs' and 'len' into the appriopriate place, or returns -ENOSPC
- *	or other error if appropriate.
- *
- *	If it returns zero, jffs2_reserve_space() also downs the per-filesystem
- *	allocation semaphore, to prevent more than one allocation from being
- *	active at any time. The semaphore is later released by jffs2_commit_allocation()
- *
- *	jffs2_reserve_space() may trigger garbage collection in order to make room
- *	for the requested allocation.
- */
-
-static int jffs2_do_reserve_space(struct jffs2_sb_info *c,  uint32_t minsize, uint32_t *ofs, uint32_t *len);
-
-int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len, int prio)
-{
-	int ret = -EAGAIN;
-	int blocksneeded = c->resv_blocks_write;
-	/* align it */
-	minsize = PAD(minsize);
-
-	D1(printk(KERN_DEBUG "jffs2_reserve_space(): Requested 0x%x bytes\n", minsize));
-	down(&c->alloc_sem);
-
-	D1(printk(KERN_DEBUG "jffs2_reserve_space(): alloc sem got\n"));
-
-	spin_lock(&c->erase_completion_lock);
-
-	/* this needs a little more thought (true <tglx> :)) */
-	while(ret == -EAGAIN) {
-		while(c->nr_free_blocks + c->nr_erasing_blocks < blocksneeded) {
-			int ret;
-			uint32_t dirty, avail;
-
-			/* calculate real dirty size
-			 * dirty_size contains blocks on erase_pending_list
-			 * those blocks are counted in c->nr_erasing_blocks.
-			 * If one block is actually erased, it is not longer counted as dirty_space
-			 * but it is counted in c->nr_erasing_blocks, so we add it and subtract it
-			 * with c->nr_erasing_blocks * c->sector_size again.
-			 * Blocks on erasable_list are counted as dirty_size, but not in c->nr_erasing_blocks
-			 * This helps us to force gc and pick eventually a clean block to spread the load.
-			 * We add unchecked_size here, as we hopefully will find some space to use.
-			 * This will affect the sum only once, as gc first finishes checking
-			 * of nodes.
-			 */
-			dirty = c->dirty_size + c->erasing_size - c->nr_erasing_blocks * c->sector_size + c->unchecked_size;
-			if (dirty < c->nospc_dirty_size) {
-				if (prio == ALLOC_DELETION && c->nr_free_blocks + c->nr_erasing_blocks >= c->resv_blocks_deletion) {
-					D1(printk(KERN_NOTICE "jffs2_reserve_space(): Low on dirty space to GC, but it's a deletion. Allowing...\n"));
-					break;
-				}
-				D1(printk(KERN_DEBUG "dirty size 0x%08x + unchecked_size 0x%08x < nospc_dirty_size 0x%08x, returning -ENOSPC\n",
-					  dirty, c->unchecked_size, c->sector_size));
-
-				spin_unlock(&c->erase_completion_lock);
-				up(&c->alloc_sem);
-				return -ENOSPC;
-			}
-			
-			/* Calc possibly available space. Possibly available means that we
-			 * don't know, if unchecked size contains obsoleted nodes, which could give us some
-			 * more usable space. This will affect the sum only once, as gc first finishes checking
-			 * of nodes.
-			 + Return -ENOSPC, if the maximum possibly available space is less or equal than 
-			 * blocksneeded * sector_size.
-			 * This blocks endless gc looping on a filesystem, which is nearly full, even if
-			 * the check above passes.
-			 */
-			avail = c->free_size + c->dirty_size + c->erasing_size + c->unchecked_size;
-			if ( (avail / c->sector_size) <= blocksneeded) {
-				if (prio == ALLOC_DELETION && c->nr_free_blocks + c->nr_erasing_blocks >= c->resv_blocks_deletion) {
-					D1(printk(KERN_NOTICE "jffs2_reserve_space(): Low on possibly available space, but it's a deletion. Allowing...\n"));
-					break;
-				}
-
-				D1(printk(KERN_DEBUG "max. available size 0x%08x  < blocksneeded * sector_size 0x%08x, returning -ENOSPC\n",
-					  avail, blocksneeded * c->sector_size));
-				spin_unlock(&c->erase_completion_lock);
-				up(&c->alloc_sem);
-				return -ENOSPC;
-			}
-
-			up(&c->alloc_sem);
-
-			D1(printk(KERN_DEBUG "Triggering GC pass. nr_free_blocks %d, nr_erasing_blocks %d, free_size 0x%08x, dirty_size 0x%08x, wasted_size 0x%08x, used_size 0x%08x, erasing_size 0x%08x, bad_size 0x%08x (total 0x%08x of 0x%08x)\n",
-				  c->nr_free_blocks, c->nr_erasing_blocks, c->free_size, c->dirty_size, c->wasted_size, c->used_size, c->erasing_size, c->bad_size,
-				  c->free_size + c->dirty_size + c->wasted_size + c->used_size + c->erasing_size + c->bad_size, c->flash_size));
-			spin_unlock(&c->erase_completion_lock);
-			
-			ret = jffs2_garbage_collect_pass(c);
-			if (ret)
-				return ret;
-
-			cond_resched();
-
-			if (signal_pending(current))
-				return -EINTR;
-
-			down(&c->alloc_sem);
-			spin_lock(&c->erase_completion_lock);
-		}
-
-		ret = jffs2_do_reserve_space(c, minsize, ofs, len);
-		if (ret) {
-			D1(printk(KERN_DEBUG "jffs2_reserve_space: ret is %d\n", ret));
-		}
-	}
-	spin_unlock(&c->erase_completion_lock);
-	if (ret)
-		up(&c->alloc_sem);
-	return ret;
-}
-
-int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len)
-{
-	int ret = -EAGAIN;
-	minsize = PAD(minsize);
-
-	D1(printk(KERN_DEBUG "jffs2_reserve_space_gc(): Requested 0x%x bytes\n", minsize));
-
-	spin_lock(&c->erase_completion_lock);
-	while(ret == -EAGAIN) {
-		ret = jffs2_do_reserve_space(c, minsize, ofs, len);
-		if (ret) {
-		        D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret));
-		}
-	}
-	spin_unlock(&c->erase_completion_lock);
-	return ret;
-}
-
-/* Called with alloc sem _and_ erase_completion_lock */
-static int jffs2_do_reserve_space(struct jffs2_sb_info *c,  uint32_t minsize, uint32_t *ofs, uint32_t *len)
-{
-	struct jffs2_eraseblock *jeb = c->nextblock;
-	
- restart:
-	if (jeb && minsize > jeb->free_size) {
-		/* Skip the end of this block and file it as having some dirty space */
-		/* If there's a pending write to it, flush now */
-		if (jffs2_wbuf_dirty(c)) {
-			spin_unlock(&c->erase_completion_lock);
-			D1(printk(KERN_DEBUG "jffs2_do_reserve_space: Flushing write buffer\n"));			    
-			jffs2_flush_wbuf_pad(c);
-			spin_lock(&c->erase_completion_lock);
-			jeb = c->nextblock;
-			goto restart;
-		}
-		c->wasted_size += jeb->free_size;
-		c->free_size -= jeb->free_size;
-		jeb->wasted_size += jeb->free_size;
-		jeb->free_size = 0;
-		
-		/* Check, if we have a dirty block now, or if it was dirty already */
-		if (ISDIRTY (jeb->wasted_size + jeb->dirty_size)) {
-			c->dirty_size += jeb->wasted_size;
-			c->wasted_size -= jeb->wasted_size;
-			jeb->dirty_size += jeb->wasted_size;
-			jeb->wasted_size = 0;
-			if (VERYDIRTY(c, jeb->dirty_size)) {
-				D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to very_dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
-				  jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
-				list_add_tail(&jeb->list, &c->very_dirty_list);
-			} else {
-				D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
-				  jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
-				list_add_tail(&jeb->list, &c->dirty_list);
-			}
-		} else { 
-			D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
-			  jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
-			list_add_tail(&jeb->list, &c->clean_list);
-		}
-		c->nextblock = jeb = NULL;
-	}
-	
-	if (!jeb) {
-		struct list_head *next;
-		/* Take the next block off the 'free' list */
-
-		if (list_empty(&c->free_list)) {
-
-			if (!c->nr_erasing_blocks && 
-			    !list_empty(&c->erasable_list)) {
-				struct jffs2_eraseblock *ejeb;
-
-				ejeb = list_entry(c->erasable_list.next, struct jffs2_eraseblock, list);
-				list_del(&ejeb->list);
-				list_add_tail(&ejeb->list, &c->erase_pending_list);
-				c->nr_erasing_blocks++;
-				jffs2_erase_pending_trigger(c);
-				D1(printk(KERN_DEBUG "jffs2_do_reserve_space: Triggering erase of erasable block at 0x%08x\n",
-					  ejeb->offset));
-			}
-
-			if (!c->nr_erasing_blocks && 
-			    !list_empty(&c->erasable_pending_wbuf_list)) {
-				D1(printk(KERN_DEBUG "jffs2_do_reserve_space: Flushing write buffer\n"));
-				/* c->nextblock is NULL, no update to c->nextblock allowed */			    
-				spin_unlock(&c->erase_completion_lock);
-				jffs2_flush_wbuf_pad(c);
-				spin_lock(&c->erase_completion_lock);
-				/* Have another go. It'll be on the erasable_list now */
-				return -EAGAIN;
-			}
-
-			if (!c->nr_erasing_blocks) {
-				/* Ouch. We're in GC, or we wouldn't have got here.
-				   And there's no space left. At all. */
-				printk(KERN_CRIT "Argh. No free space left for GC. nr_erasing_blocks is %d. nr_free_blocks is %d. (erasableempty: %s, erasingempty: %s, erasependingempty: %s)\n", 
-				       c->nr_erasing_blocks, c->nr_free_blocks, list_empty(&c->erasable_list)?"yes":"no", 
-				       list_empty(&c->erasing_list)?"yes":"no", list_empty(&c->erase_pending_list)?"yes":"no");
-				return -ENOSPC;
-			}
-
-			spin_unlock(&c->erase_completion_lock);
-			/* Don't wait for it; just erase one right now */
-			jffs2_erase_pending_blocks(c, 1);
-			spin_lock(&c->erase_completion_lock);
-
-			/* An erase may have failed, decreasing the
-			   amount of free space available. So we must
-			   restart from the beginning */
-			return -EAGAIN;
-		}
-
-		next = c->free_list.next;
-		list_del(next);
-		c->nextblock = jeb = list_entry(next, struct jffs2_eraseblock, list);
-		c->nr_free_blocks--;
-
-		if (jeb->free_size != c->sector_size - c->cleanmarker_size) {
-			printk(KERN_WARNING "Eep. Block 0x%08x taken from free_list had free_size of 0x%08x!!\n", jeb->offset, jeb->free_size);
-			goto restart;
-		}
-	}
-	/* OK, jeb (==c->nextblock) is now pointing at a block which definitely has
-	   enough space */
-	*ofs = jeb->offset + (c->sector_size - jeb->free_size);
-	*len = jeb->free_size;
-
-	if (c->cleanmarker_size && jeb->used_size == c->cleanmarker_size &&
-	    !jeb->first_node->next_in_ino) {
-		/* Only node in it beforehand was a CLEANMARKER node (we think). 
-		   So mark it obsolete now that there's going to be another node
-		   in the block. This will reduce used_size to zero but We've 
-		   already set c->nextblock so that jffs2_mark_node_obsolete()
-		   won't try to refile it to the dirty_list.
-		*/
-		spin_unlock(&c->erase_completion_lock);
-		jffs2_mark_node_obsolete(c, jeb->first_node);
-		spin_lock(&c->erase_completion_lock);
-	}
-
-	D1(printk(KERN_DEBUG "jffs2_do_reserve_space(): Giving 0x%x bytes at 0x%x\n", *len, *ofs));
-	return 0;
-}
-
-/**
- *	jffs2_add_physical_node_ref - add a physical node reference to the list
- *	@c: superblock info
- *	@new: new node reference to add
- *	@len: length of this physical node
- *	@dirty: dirty flag for new node
- *
- *	Should only be used to report nodes for which space has been allocated 
- *	by jffs2_reserve_space.
- *
- *	Must be called with the alloc_sem held.
- */
- 
-int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new)
-{
-	struct jffs2_eraseblock *jeb;
-	uint32_t len;
-
-	jeb = &c->blocks[new->flash_offset / c->sector_size];
-	len = ref_totlen(c, jeb, new);
-
-	D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x(%d), size 0x%x\n", ref_offset(new), ref_flags(new), len));
-#if 1
-	/* we could get some obsolete nodes after nextblock was refiled
-	   in wbuf.c */
-	if ((c->nextblock || !ref_obsolete(new))
-	    &&(jeb != c->nextblock || ref_offset(new) != jeb->offset + (c->sector_size - jeb->free_size))) {
-		printk(KERN_WARNING "argh. node added in wrong place\n");
-		jffs2_free_raw_node_ref(new);
-		return -EINVAL;
-	}
-#endif
-	spin_lock(&c->erase_completion_lock);
-
-	if (!jeb->first_node)
-		jeb->first_node = new;
-	if (jeb->last_node)
-		jeb->last_node->next_phys = new;
-	jeb->last_node = new;
-
-	jeb->free_size -= len;
-	c->free_size -= len;
-	if (ref_obsolete(new)) {
-		jeb->dirty_size += len;
-		c->dirty_size += len;
-	} else {
-		jeb->used_size += len;
-		c->used_size += len;
-	}
-
-	if (!jeb->free_size && !jeb->dirty_size && !ISDIRTY(jeb->wasted_size)) {
-		/* If it lives on the dirty_list, jffs2_reserve_space will put it there */
-		D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
-			  jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
-		if (jffs2_wbuf_dirty(c)) {
-			/* Flush the last write in the block if it's outstanding */
-			spin_unlock(&c->erase_completion_lock);
-			jffs2_flush_wbuf_pad(c);
-			spin_lock(&c->erase_completion_lock);
-		}
-
-		list_add_tail(&jeb->list, &c->clean_list);
-		c->nextblock = NULL;
-	}
-	jffs2_dbg_acct_sanity_check_nolock(c,jeb);
-	jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
-
-	spin_unlock(&c->erase_completion_lock);
-
-	return 0;
-}
-
-
-void jffs2_complete_reservation(struct jffs2_sb_info *c)
-{
-	D1(printk(KERN_DEBUG "jffs2_complete_reservation()\n"));
-	jffs2_garbage_collect_trigger(c);
-	up(&c->alloc_sem);
-}
-
-static inline int on_list(struct list_head *obj, struct list_head *head)
-{
-	struct list_head *this;
-
-	list_for_each(this, head) {
-		if (this == obj) {
-			D1(printk("%p is on list at %p\n", obj, head));
-			return 1;
-
-		}
-	}
-	return 0;
-}
-
-void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref)
-{
-	struct jffs2_eraseblock *jeb;
-	int blocknr;
-	struct jffs2_unknown_node n;
-	int ret, addedsize;
-	size_t retlen;
-
-	if(!ref) {
-		printk(KERN_NOTICE "EEEEEK. jffs2_mark_node_obsolete called with NULL node\n");
-		return;
-	}
-	if (ref_obsolete(ref)) {
-		D1(printk(KERN_DEBUG "jffs2_mark_node_obsolete called with already obsolete node at 0x%08x\n", ref_offset(ref)));
-		return;
-	}
-	blocknr = ref->flash_offset / c->sector_size;
-	if (blocknr >= c->nr_blocks) {
-		printk(KERN_NOTICE "raw node at 0x%08x is off the end of device!\n", ref->flash_offset);
-		BUG();
-	}
-	jeb = &c->blocks[blocknr];
-
-	if (jffs2_can_mark_obsolete(c) && !jffs2_is_readonly(c) &&
-	    !(c->flags & (JFFS2_SB_FLAG_SCANNING | JFFS2_SB_FLAG_BUILDING))) {
-		/* Hm. This may confuse static lock analysis. If any of the above 
-		   three conditions is false, we're going to return from this 
-		   function without actually obliterating any nodes or freeing
-		   any jffs2_raw_node_refs. So we don't need to stop erases from
-		   happening, or protect against people holding an obsolete
-		   jffs2_raw_node_ref without the erase_completion_lock. */
-		down(&c->erase_free_sem);
-	}
-
-	spin_lock(&c->erase_completion_lock);
-
-	if (ref_flags(ref) == REF_UNCHECKED) {
-		D1(if (unlikely(jeb->unchecked_size < ref_totlen(c, jeb, ref))) {
-			printk(KERN_NOTICE "raw unchecked node of size 0x%08x freed from erase block %d at 0x%08x, but unchecked_size was already 0x%08x\n",
-			       ref_totlen(c, jeb, ref), blocknr, ref->flash_offset, jeb->used_size);
-			BUG();
-		})
-		D1(printk(KERN_DEBUG "Obsoleting previously unchecked node at 0x%08x of len %x: ", ref_offset(ref), ref_totlen(c, jeb, ref)));
-		jeb->unchecked_size -= ref_totlen(c, jeb, ref);
-		c->unchecked_size -= ref_totlen(c, jeb, ref);
-	} else {
-		D1(if (unlikely(jeb->used_size < ref_totlen(c, jeb, ref))) {
-			printk(KERN_NOTICE "raw node of size 0x%08x freed from erase block %d at 0x%08x, but used_size was already 0x%08x\n",
-			       ref_totlen(c, jeb, ref), blocknr, ref->flash_offset, jeb->used_size);
-			BUG();
-		})
-		D1(printk(KERN_DEBUG "Obsoleting node at 0x%08x of len %#x: ", ref_offset(ref), ref_totlen(c, jeb, ref)));
-		jeb->used_size -= ref_totlen(c, jeb, ref);
-		c->used_size -= ref_totlen(c, jeb, ref);
-	}
-
-	// Take care, that wasted size is taken into concern
-	if ((jeb->dirty_size || ISDIRTY(jeb->wasted_size + ref_totlen(c, jeb, ref))) && jeb != c->nextblock) {
-		D1(printk(KERN_DEBUG "Dirtying\n"));
-		addedsize = ref_totlen(c, jeb, ref);
-		jeb->dirty_size += ref_totlen(c, jeb, ref);
-		c->dirty_size += ref_totlen(c, jeb, ref);
-
-		/* Convert wasted space to dirty, if not a bad block */
-		if (jeb->wasted_size) {
-			if (on_list(&jeb->list, &c->bad_used_list)) {
-				D1(printk(KERN_DEBUG "Leaving block at %08x on the bad_used_list\n",
-					  jeb->offset));
-				addedsize = 0; /* To fool the refiling code later */
-			} else {
-				D1(printk(KERN_DEBUG "Converting %d bytes of wasted space to dirty in block at %08x\n",
-					  jeb->wasted_size, jeb->offset));
-				addedsize += jeb->wasted_size;
-				jeb->dirty_size += jeb->wasted_size;
-				c->dirty_size += jeb->wasted_size;
-				c->wasted_size -= jeb->wasted_size;
-				jeb->wasted_size = 0;
-			}
-		}
-	} else {
-		D1(printk(KERN_DEBUG "Wasting\n"));
-		addedsize = 0;
-		jeb->wasted_size += ref_totlen(c, jeb, ref);
-		c->wasted_size += ref_totlen(c, jeb, ref);	
-	}
-	ref->flash_offset = ref_offset(ref) | REF_OBSOLETE;
-	
-	jffs2_dbg_acct_sanity_check_nolock(c, jeb);
-	jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
-
-	if (c->flags & JFFS2_SB_FLAG_SCANNING) {
-		/* Flash scanning is in progress. Don't muck about with the block
-		   lists because they're not ready yet, and don't actually
-		   obliterate nodes that look obsolete. If they weren't 
-		   marked obsolete on the flash at the time they _became_
-		   obsolete, there was probably a reason for that. */
-		spin_unlock(&c->erase_completion_lock);
-		/* We didn't lock the erase_free_sem */
-		return;
-	}
-
-	if (jeb == c->nextblock) {
-		D2(printk(KERN_DEBUG "Not moving nextblock 0x%08x to dirty/erase_pending list\n", jeb->offset));
-	} else if (!jeb->used_size && !jeb->unchecked_size) {
-		if (jeb == c->gcblock) {
-			D1(printk(KERN_DEBUG "gcblock at 0x%08x completely dirtied. Clearing gcblock...\n", jeb->offset));
-			c->gcblock = NULL;
-		} else {
-			D1(printk(KERN_DEBUG "Eraseblock at 0x%08x completely dirtied. Removing from (dirty?) list...\n", jeb->offset));
-			list_del(&jeb->list);
-		}
-		if (jffs2_wbuf_dirty(c)) {
-			D1(printk(KERN_DEBUG "...and adding to erasable_pending_wbuf_list\n"));
-			list_add_tail(&jeb->list, &c->erasable_pending_wbuf_list);
-		} else {
-			if (jiffies & 127) {
-				/* Most of the time, we just erase it immediately. Otherwise we
-				   spend ages scanning it on mount, etc. */
-				D1(printk(KERN_DEBUG "...and adding to erase_pending_list\n"));
-				list_add_tail(&jeb->list, &c->erase_pending_list);
-				c->nr_erasing_blocks++;
-				jffs2_erase_pending_trigger(c);
-			} else {
-				/* Sometimes, however, we leave it elsewhere so it doesn't get
-				   immediately reused, and we spread the load a bit. */
-				D1(printk(KERN_DEBUG "...and adding to erasable_list\n"));
-				list_add_tail(&jeb->list, &c->erasable_list);
-			}				
-		}
-		D1(printk(KERN_DEBUG "Done OK\n"));
-	} else if (jeb == c->gcblock) {
-		D2(printk(KERN_DEBUG "Not moving gcblock 0x%08x to dirty_list\n", jeb->offset));
-	} else if (ISDIRTY(jeb->dirty_size) && !ISDIRTY(jeb->dirty_size - addedsize)) {
-		D1(printk(KERN_DEBUG "Eraseblock at 0x%08x is freshly dirtied. Removing from clean list...\n", jeb->offset));
-		list_del(&jeb->list);
-		D1(printk(KERN_DEBUG "...and adding to dirty_list\n"));
-		list_add_tail(&jeb->list, &c->dirty_list);
-	} else if (VERYDIRTY(c, jeb->dirty_size) &&
-		   !VERYDIRTY(c, jeb->dirty_size - addedsize)) {
-		D1(printk(KERN_DEBUG "Eraseblock at 0x%08x is now very dirty. Removing from dirty list...\n", jeb->offset));
-		list_del(&jeb->list);
-		D1(printk(KERN_DEBUG "...and adding to very_dirty_list\n"));
-		list_add_tail(&jeb->list, &c->very_dirty_list);
-	} else {
-		D1(printk(KERN_DEBUG "Eraseblock at 0x%08x not moved anywhere. (free 0x%08x, dirty 0x%08x, used 0x%08x)\n",
-			  jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size)); 
-	}			  	
-
-	spin_unlock(&c->erase_completion_lock);
-
-	if (!jffs2_can_mark_obsolete(c) || jffs2_is_readonly(c) ||
-		(c->flags & JFFS2_SB_FLAG_BUILDING)) {
-		/* We didn't lock the erase_free_sem */
-		return;
-	}
-
-	/* The erase_free_sem is locked, and has been since before we marked the node obsolete
-	   and potentially put its eraseblock onto the erase_pending_list. Thus, we know that
-	   the block hasn't _already_ been erased, and that 'ref' itself hasn't been freed yet
-	   by jffs2_free_all_node_refs() in erase.c. Which is nice. */
-
-	D1(printk(KERN_DEBUG "obliterating obsoleted node at 0x%08x\n", ref_offset(ref)));
-	ret = jffs2_flash_read(c, ref_offset(ref), sizeof(n), &retlen, (unsigned char *)&n);
-	if (ret) {
-		printk(KERN_WARNING "Read error reading from obsoleted node at 0x%08x: %d\n", ref_offset(ref), ret);
-		goto out_erase_sem;
-	}
-	if (retlen != sizeof(n)) {
-		printk(KERN_WARNING "Short read from obsoleted node at 0x%08x: %zd\n", ref_offset(ref), retlen);
-		goto out_erase_sem;
-	}
-	if (PAD(je32_to_cpu(n.totlen)) != PAD(ref_totlen(c, jeb, ref))) {
-		printk(KERN_WARNING "Node totlen on flash (0x%08x) != totlen from node ref (0x%08x)\n", je32_to_cpu(n.totlen), ref_totlen(c, jeb, ref));
-		goto out_erase_sem;
-	}
-	if (!(je16_to_cpu(n.nodetype) & JFFS2_NODE_ACCURATE)) {
-		D1(printk(KERN_DEBUG "Node at 0x%08x was already marked obsolete (nodetype 0x%04x)\n", ref_offset(ref), je16_to_cpu(n.nodetype)));
-		goto out_erase_sem;
-	}
-	/* XXX FIXME: This is ugly now */
-	n.nodetype = cpu_to_je16(je16_to_cpu(n.nodetype) & ~JFFS2_NODE_ACCURATE);
-	ret = jffs2_flash_write(c, ref_offset(ref), sizeof(n), &retlen, (unsigned char *)&n);
-	if (ret) {
-		printk(KERN_WARNING "Write error in obliterating obsoleted node at 0x%08x: %d\n", ref_offset(ref), ret);
-		goto out_erase_sem;
-	}
-	if (retlen != sizeof(n)) {
-		printk(KERN_WARNING "Short write in obliterating obsoleted node at 0x%08x: %zd\n", ref_offset(ref), retlen);
-		goto out_erase_sem;
-	}
-
-	/* Nodes which have been marked obsolete no longer need to be
-	   associated with any inode. Remove them from the per-inode list.
-	   
-	   Note we can't do this for NAND at the moment because we need 
-	   obsolete dirent nodes to stay on the lists, because of the
-	   horridness in jffs2_garbage_collect_deletion_dirent(). Also
-	   because we delete the inocache, and on NAND we need that to 
-	   stay around until all the nodes are actually erased, in order
-	   to stop us from giving the same inode number to another newly
-	   created inode. */
-	if (ref->next_in_ino) {
-		struct jffs2_inode_cache *ic;
-		struct jffs2_raw_node_ref **p;
-
-		spin_lock(&c->erase_completion_lock);
-
-		ic = jffs2_raw_ref_to_ic(ref);
-		for (p = &ic->nodes; (*p) != ref; p = &((*p)->next_in_ino))
-			;
-
-		*p = ref->next_in_ino;
-		ref->next_in_ino = NULL;
-
-		if (ic->nodes == (void *)ic && ic->nlink == 0)
-			jffs2_del_ino_cache(c, ic);
-
-		spin_unlock(&c->erase_completion_lock);
-	}
-
-
-	/* Merge with the next node in the physical list, if there is one
-	   and if it's also obsolete and if it doesn't belong to any inode */
-	if (ref->next_phys && ref_obsolete(ref->next_phys) &&
-	    !ref->next_phys->next_in_ino) {
-		struct jffs2_raw_node_ref *n = ref->next_phys;
-		
-		spin_lock(&c->erase_completion_lock);
-
-		ref->__totlen += n->__totlen;
-		ref->next_phys = n->next_phys;
-                if (jeb->last_node == n) jeb->last_node = ref;
-		if (jeb->gc_node == n) {
-			/* gc will be happy continuing gc on this node */
-			jeb->gc_node=ref;
-		}
-		spin_unlock(&c->erase_completion_lock);
-
-		jffs2_free_raw_node_ref(n);
-	}
-	
-	/* Also merge with the previous node in the list, if there is one
-	   and that one is obsolete */
-	if (ref != jeb->first_node ) {
-		struct jffs2_raw_node_ref *p = jeb->first_node;
-
-		spin_lock(&c->erase_completion_lock);
-
-		while (p->next_phys != ref)
-			p = p->next_phys;
-		
-		if (ref_obsolete(p) && !ref->next_in_ino) {
-			p->__totlen += ref->__totlen;
-			if (jeb->last_node == ref) {
-				jeb->last_node = p;
-			}
-			if (jeb->gc_node == ref) {
-				/* gc will be happy continuing gc on this node */
-				jeb->gc_node=p;
-			}
-			p->next_phys = ref->next_phys;
-			jffs2_free_raw_node_ref(ref);
-		}
-		spin_unlock(&c->erase_completion_lock);
-	}
- out_erase_sem:
-	up(&c->erase_free_sem);
-}
-
-int jffs2_thread_should_wake(struct jffs2_sb_info *c)
-{
-	int ret = 0;
-	uint32_t dirty;
-
-	if (c->unchecked_size) {
-		D1(printk(KERN_DEBUG "jffs2_thread_should_wake(): unchecked_size %d, checked_ino #%d\n",
-			  c->unchecked_size, c->checked_ino));
-		return 1;
-	}
-
-	/* dirty_size contains blocks on erase_pending_list
-	 * those blocks are counted in c->nr_erasing_blocks.
-	 * If one block is actually erased, it is not longer counted as dirty_space
-	 * but it is counted in c->nr_erasing_blocks, so we add it and subtract it
-	 * with c->nr_erasing_blocks * c->sector_size again.
-	 * Blocks on erasable_list are counted as dirty_size, but not in c->nr_erasing_blocks
-	 * This helps us to force gc and pick eventually a clean block to spread the load.
-	 */
-	dirty = c->dirty_size + c->erasing_size - c->nr_erasing_blocks * c->sector_size;
-
-	if (c->nr_free_blocks + c->nr_erasing_blocks < c->resv_blocks_gctrigger && 
-			(dirty > c->nospc_dirty_size)) 
-		ret = 1;
-
-	D1(printk(KERN_DEBUG "jffs2_thread_should_wake(): nr_free_blocks %d, nr_erasing_blocks %d, dirty_size 0x%x: %s\n", 
-		  c->nr_free_blocks, c->nr_erasing_blocks, c->dirty_size, ret?"yes":"no"));
-
-	return ret;
-}
diff --git a/components/dfs/filesystems/jffs2/src/os-ecos.h b/components/dfs/filesystems/jffs2/src/os-ecos.h
deleted file mode 100644
index b6d2a0e8c8..0000000000
--- a/components/dfs/filesystems/jffs2/src/os-ecos.h
+++ /dev/null
@@ -1,265 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2002-2003 Free Software Foundation, Inc.
- *
- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: os-ecos.h,v 1.24 2005/02/09 09:23:55 pavlov Exp $
- *
- */
-
-#ifndef __JFFS2_OS_ECOS_H__
-#define __JFFS2_OS_ECOS_H__
-#include "jffs2_config.h"
-#include <rtthread.h>
-#define printf rt_kprintf
-
-//#include <pkgconf/fs_jffs2.h>
-//#include <cyg/io/io.h>
-//#include <sys/types.h>
-#include <asm/atomic.h>
-#include <linux/stat.h>
-#include <linux/compiler.h>
-
-//#include <pkgconf/system.h>
-//#include <pkgconf/hal.h>
-//#include <pkgconf/io_fileio.h>
-
-//#include <cyg/infra/cyg_trac.h>        // tracing macros
-//#include <cyg/infra/cyg_ass.h>         // assertion macros
-
-//#if defined (__GNUC__) 
-//#include <unistd.h>
-//#elif defined (MSVC)
-//#else
-//#endif
-
-#include "port/sys/stat.h"//#include <sys/types.h>
-//#include <fcntl.h>
-//#include <sys/stat.h>
-//#include <errno.h> //fixme
-
-//#include <dirent.h>
-
-struct dirent
-{
-#ifdef CYGPKG_FILEIO_DIRENT_DTYPE
-
-	mode_t      d_type; // Only supported with FATFS, RAMFS, ROMFS,
-	// and JFFS2.
-	// d_type is not part of POSIX so
-	// should be used with caution.
-#endif
-	char        d_name[JFFS2_NAME_MAX+1];
-};
-
-
-//#include <stdlib.h>
-#include <string.h>
-
-#include <cyg/fileio/fileio.h>  //prife
-
-//#include <cyg/hal/drv_api.h>
-//#include <cyg/infra/diag.h>
-
-//#include <cyg/io/flash.h>
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <asm/bug.h>
-
-//#define printf diag_printf   //prife
-
-struct _inode;
-struct super_block;
-
-struct iovec {
-        void *iov_base;
-        ssize_t iov_len;
-};
-
-static inline unsigned int full_name_hash(const unsigned char * name, unsigned int len) {
-
-	unsigned hash = 0;
- 	while (len--) {
-		hash = (hash << 4) | (hash >> 28);
-		hash ^= *(name++);
-	}
-	return hash;
-}
-
-#ifdef CYGOPT_FS_JFFS2_WRITE
-#define jffs2_is_readonly(c) (0)
-#else
-#define jffs2_is_readonly(c) (1)
-#endif
-
-/* NAND flash not currently supported on eCos */
-#define jffs2_can_mark_obsolete(c) (1)
-
-#define JFFS2_INODE_INFO(i) (&(i)->jffs2_i)
-#define OFNI_EDONI_2SFFJ(f)  ((struct _inode *) ( ((char *)f) - ((char *)(&((struct _inode *)NULL)->jffs2_i)) ) )
-
-#define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size)
-#define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode)
-#define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid)
-#define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid)
-#define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime)
-#define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime)
-#define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime)
-
-/* FIXME: eCos doesn't hav a concept of device major/minor numbers */
-#define JFFS2_F_I_RDEV_MIN(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)&0xff)
-#define JFFS2_F_I_RDEV_MAJ(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)>>8)
-
-#define get_seconds jffs2_get_timestamp
-
-struct _inode {
-	cyg_uint32		i_ino;
-
-	int			i_count;
-	mode_t			i_mode;
-	nlink_t			i_nlink; // Could we dispense with this?
-	uid_t			i_uid;
-	gid_t			i_gid;
-	time_t			i_atime;
-	time_t			i_mtime;
-	time_t			i_ctime;
-//	union {
-		unsigned short	i_rdev; // For devices only
-		struct _inode *	i_parent; // For directories only
-		off_t		i_size; // For files only
-//	};
-	struct super_block *	i_sb;
-
-	struct jffs2_inode_info	jffs2_i;
-
-        struct _inode *		i_cache_prev; // We need doubly-linked?
-        struct _inode *		i_cache_next;
-};
-
-#define JFFS2_SB_INFO(sb) (&(sb)->jffs2_sb)
-#define OFNI_BS_2SFFJ(c)  ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->jffs2_sb)) ) )
-
-struct super_block {
-	struct jffs2_sb_info	jffs2_sb;
-	struct _inode *		s_root;
-    unsigned long		s_mount_count;
-	cyg_io_handle_t		s_dev;
-
-//#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-//	cyg_mutex_t s_lock;             // Lock the inode cache
-//	cyg_flag_t  s_gc_thread_flags;  // Communication with the gcthread
-//	cyg_handle_t s_gc_thread_handle;
-//	cyg_thread s_gc_thread;
-//#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
-//    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
-//#else
-//    char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
-//#endif
-//    cyg_mtab_entry *mte;
-//#endif
-
-#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-	struct rt_mutex s_lock;             // Lock the inode cache
-	struct rt_event s_gc_thread_flags;  // Communication with the gcthread
-	//void (*s_gc_thread_handle)(void *parameter);
-	struct rt_thread s_gc_thread;
-//#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
-//    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
-//#else
-//    char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
-//#endif
-	#define CYGNUM_JFFS2_GC_THREAD_STACK_SIZE  (1024*4)
-    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
-
-    cyg_mtab_entry *mte;
-#endif
-
-};
-
-#define sleep_on_spinunlock(wq, sl) spin_unlock(sl)
-#define EBADFD 32767
-
-/* background.c */
-#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
-void jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
-void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
-#else
-static inline void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
-{
-	/* We don't have a GC thread in eCos (yet) */
-}
-#endif
-
-/* fs-ecos.c */
-struct _inode *jffs2_new_inode (struct _inode *dir_i, int mode, struct jffs2_raw_inode *ri);
-struct _inode *jffs2_iget(struct super_block *sb, cyg_uint32 ino);
-void jffs2_iput(struct _inode * i);
-void jffs2_gc_release_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
-struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c, int inum, int nlink);
-unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-				   unsigned long offset, unsigned long *priv);
-void jffs2_gc_release_page(struct jffs2_sb_info *c, unsigned char *pg, unsigned long *priv);
-
-/* Avoid polluting eCos namespace with names not starting in jffs2_ */
-#define os_to_jffs2_mode(x) jffs2_from_os_mode(x)
-uint32_t jffs2_from_os_mode(uint32_t osmode);
-uint32_t jffs2_to_os_mode (uint32_t jmode);
-
-
-/* flashio.c */
-int jffs2_flash_read(struct jffs2_sb_info *c, cyg_uint32 read_buffer_offset,
-			  const size_t size, size_t * return_size, unsigned char * write_buffer);
-int jffs2_flash_write(struct jffs2_sb_info *c, cyg_uint32 write_buffer_offset,
-			   const size_t size, size_t * return_size, unsigned char * read_buffer);
-int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct iovec *vecs,
-			      unsigned long count, loff_t to, size_t *retlen);
-int jffs2_flash_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-
-// dir-ecos.c
-struct _inode *jffs2_lookup(struct _inode *dir_i, const unsigned char *name, int namelen);
-int jffs2_create(struct _inode *dir_i, const unsigned char *d_name, int mode, struct _inode **new_i);
-int jffs2_mkdir (struct _inode *dir_i, const unsigned char *d_name, int mode);
-int jffs2_link (struct _inode *old_d_inode, struct _inode *dir_i, const unsigned char *d_name);
-int jffs2_unlink(struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
-int jffs2_rmdir (struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
-int jffs2_rename (struct _inode *old_dir_i, struct _inode *d_inode, const unsigned char *old_d_name,
-		  struct _inode *new_dir_i, const unsigned char *new_d_name);
-
-/* erase.c */
-static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
-{ }
-
-#ifndef CONFIG_JFFS2_FS_WRITEBUFFER
-#define SECTOR_ADDR(x) ( ((unsigned long)(x) & ~(c->sector_size-1)) )
-#define jffs2_can_mark_obsolete(c) (1)
-#define jffs2_cleanmarker_oob(c) (0)
-#define jffs2_write_nand_cleanmarker(c,jeb) (-EIO)
-
-#define jffs2_flush_wbuf_pad(c) (c=c)
-#define jffs2_flush_wbuf_gc(c, i) ({ (void)(c), (void) i, 0; })
-#define jffs2_nand_read_failcnt(c,jeb) do { ; } while(0)
-#define jffs2_write_nand_badblock(c,jeb,p) (0)
-#define jffs2_flash_setup(c) (0)
-#define jffs2_nand_flash_cleanup(c) do {} while(0)
-#define jffs2_wbuf_dirty(c) (0)
-#define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e)
-#define jffs2_wbuf_timeout NULL
-#define jffs2_wbuf_process NULL
-#define jffs2_nor_ecc(c) (0)
-#else
-#error no nand yet
-#endif
-
-#ifndef BUG_ON
-#define BUG_ON(x) do { if (unlikely(x)) BUG(); } while(0)
-#endif
-
-#define __init
-
-#endif /* __JFFS2_OS_ECOS_H__ */
diff --git a/components/dfs/filesystems/jffs2/src/os-rtthread.h b/components/dfs/filesystems/jffs2/src/os-rtthread.h
deleted file mode 100644
index 95496c2e73..0000000000
--- a/components/dfs/filesystems/jffs2/src/os-rtthread.h
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2002-2003 Free Software Foundation, Inc.
- *
- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: os-ecos.h,v 1.24 2005/02/09 09:23:55 pavlov Exp $
- *
- */
-
-#ifndef __JFFS2_OS_RTTHREAD_H__
-#define __JFFS2_OS_RTTHREAD_H__
-#include "jffs2_config.h"
-#include <rtthread.h>
-#define printf rt_kprintf
-
-//#include <pkgconf/fs_jffs2.h>
-//#include <cyg/io/io.h>
-//#include <sys/types.h>
-#include <asm/atomic.h>
-#include <linux/stat.h>
-#include <linux/compiler.h>
-
-//#include <pkgconf/system.h>
-//#include <pkgconf/hal.h>
-//#include <pkgconf/io_fileio.h>
-
-//#include <cyg/infra/cyg_trac.h>        // tracing macros
-//#include <cyg/infra/cyg_ass.h>         // assertion macros
-
-//#if defined (__GNUC__) 
-//#include <unistd.h>
-//#elif defined (MSVC)
-//#else
-//#endif
-
-#include "os_sys_stat.h"//#include <sys/types.h>
-//#include <fcntl.h>
-//#include <sys/stat.h>
-//#include <errno.h> //fixme
-
-//#include <dirent.h>
-#define  CYGPKG_FILEIO_DIRENT_DTYPE
-struct dirent
-{
-#ifdef CYGPKG_FILEIO_DIRENT_DTYPE
-
-	mode_t      d_type; // Only supported with FATFS, RAMFS, ROMFS,
-	// and JFFS2.
-	// d_type is not part of POSIX so
-	// should be used with caution.
-#endif
-	char        d_name[NAME_MAX+1];
-};
-
-#include <string.h>
-
-#include <cyg/fileio/fileio.h>  //prife
-
-//#include <cyg/hal/drv_api.h>
-//#include <cyg/infra/diag.h>
-
-//#include <cyg/io/flash.h>
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <asm/bug.h>
-
-//#define printf diag_printf   //prife
-
-struct _inode;
-struct super_block;
-
-struct iovec {
-        void *iov_base;
-        ssize_t iov_len;
-};
-
-static inline unsigned int full_name_hash(const unsigned char * name, unsigned int len) {
-
-	unsigned hash = 0;
- 	while (len--) {
-		hash = (hash << 4) | (hash >> 28);
-		hash ^= *(name++);
-	}
-	return hash;
-}
-
-#ifdef CYGOPT_FS_JFFS2_WRITE
-#define jffs2_is_readonly(c) (0)
-#else
-#define jffs2_is_readonly(c) (1)
-#endif
-
-/* NAND flash not currently supported on eCos */
-#define jffs2_can_mark_obsolete(c) (1)
-
-#define JFFS2_INODE_INFO(i) (&(i)->jffs2_i)
-#define OFNI_EDONI_2SFFJ(f)  ((struct _inode *) ( ((char *)f) - ((char *)(&((struct _inode *)NULL)->jffs2_i)) ) )
-
-#define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size)
-#define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode)
-#define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid)
-#define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid)
-#define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime)
-#define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime)
-#define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime)
-
-/* FIXME: eCos doesn't hav a concept of device major/minor numbers */
-#define JFFS2_F_I_RDEV_MIN(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)&0xff)
-#define JFFS2_F_I_RDEV_MAJ(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)>>8)
-
-#define get_seconds jffs2_get_timestamp
-
-struct _inode {
-	cyg_uint32		i_ino;
-
-	int			i_count;
-	mode_t			i_mode;
-	nlink_t			i_nlink; // Could we dispense with this?
-	uid_t			i_uid;
-	gid_t			i_gid;
-	time_t			i_atime;
-	time_t			i_mtime;
-	time_t			i_ctime;
-//	union {
-		unsigned short	i_rdev; // For devices only
-		struct _inode *	i_parent; // For directories only
-		off_t		i_size; // For files only
-//	};
-	struct super_block *	i_sb;
-
-	struct jffs2_inode_info	jffs2_i;
-
-        struct _inode *		i_cache_prev; // We need doubly-linked?
-        struct _inode *		i_cache_next;
-};
-
-#define JFFS2_SB_INFO(sb) (&(sb)->jffs2_sb)
-#define OFNI_BS_2SFFJ(c)  ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->jffs2_sb)) ) )
-
-struct super_block {
-	struct jffs2_sb_info	jffs2_sb;
-	struct _inode *		s_root;
-    unsigned long		s_mount_count;
-	cyg_io_handle_t		s_dev;
-
-//#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-//	cyg_mutex_t s_lock;             // Lock the inode cache
-//	cyg_flag_t  s_gc_thread_flags;  // Communication with the gcthread
-//	cyg_handle_t s_gc_thread_handle;
-//	cyg_thread s_gc_thread;
-//#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
-//    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
-//#else
-//    char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
-//#endif
-//    cyg_mtab_entry *mte;
-//#endif
-
-#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-	struct rt_mutex s_lock;             // Lock the inode cache
-	struct rt_event s_gc_thread_flags;  // Communication with the gcthread
-	//void (*s_gc_thread_handle)(void *parameter);
-	struct rt_thread s_gc_thread;
-//#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
-//    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
-//#else
-//    char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
-//#endif
-	#define CYGNUM_JFFS2_GC_THREAD_STACK_SIZE  (1024*4)
-    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
-
-    cyg_mtab_entry *mte;
-#endif
-
-};
-
-#define sleep_on_spinunlock(wq, sl) spin_unlock(sl)
-#define EBADFD 32767
-
-/* background.c */
-#ifdef CYGOPT_FS_JFFS2_GCTHREAD
-void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
-void jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
-void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
-#else
-static inline void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
-{
-	/* We don't have a GC thread in eCos (yet) */
-}
-#endif
-
-/* fs-ecos.c */
-struct _inode *jffs2_new_inode (struct _inode *dir_i, int mode, struct jffs2_raw_inode *ri);
-struct _inode *jffs2_iget(struct super_block *sb, cyg_uint32 ino);
-void jffs2_iput(struct _inode * i);
-void jffs2_gc_release_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
-struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c, int inum, int nlink);
-unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-				   unsigned long offset, unsigned long *priv);
-void jffs2_gc_release_page(struct jffs2_sb_info *c, unsigned char *pg, unsigned long *priv);
-
-/* Avoid polluting eCos namespace with names not starting in jffs2_ */
-#define os_to_jffs2_mode(x) jffs2_from_os_mode(x)
-uint32_t jffs2_from_os_mode(uint32_t osmode);
-uint32_t jffs2_to_os_mode (uint32_t jmode);
-
-
-/* flashio.c */
-int jffs2_flash_read(struct jffs2_sb_info *c, cyg_uint32 read_buffer_offset,
-			  const size_t size, size_t * return_size, unsigned char * write_buffer);
-int jffs2_flash_write(struct jffs2_sb_info *c, cyg_uint32 write_buffer_offset,
-			   const size_t size, size_t * return_size, unsigned char * read_buffer);
-int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct iovec *vecs,
-			      unsigned long count, loff_t to, size_t *retlen);
-int jffs2_flash_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-
-// dir-ecos.c
-struct _inode *jffs2_lookup(struct _inode *dir_i, const unsigned char *name, int namelen);
-int jffs2_create(struct _inode *dir_i, const unsigned char *d_name, int mode, struct _inode **new_i);
-int jffs2_mkdir (struct _inode *dir_i, const unsigned char *d_name, int mode);
-int jffs2_link (struct _inode *old_d_inode, struct _inode *dir_i, const unsigned char *d_name);
-int jffs2_unlink(struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
-int jffs2_rmdir (struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
-int jffs2_rename (struct _inode *old_dir_i, struct _inode *d_inode, const unsigned char *old_d_name,
-		  struct _inode *new_dir_i, const unsigned char *new_d_name);
-
-/* erase.c */
-static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
-{ }
-
-#ifndef CONFIG_JFFS2_FS_WRITEBUFFER
-#define SECTOR_ADDR(x) ( ((unsigned long)(x) & ~(c->sector_size-1)) )
-#define jffs2_can_mark_obsolete(c) (1)
-#define jffs2_cleanmarker_oob(c) (0)
-#define jffs2_write_nand_cleanmarker(c,jeb) (-EIO)
-
-#define jffs2_flush_wbuf_pad(c) (c=c)
-#define jffs2_flush_wbuf_gc(c, i) ({ (void)(c), (void) i, 0; })
-#define jffs2_nand_read_failcnt(c,jeb) do { ; } while(0)
-#define jffs2_write_nand_badblock(c,jeb,p) (0)
-#define jffs2_flash_setup(c) (0)
-#define jffs2_nand_flash_cleanup(c) do {} while(0)
-#define jffs2_wbuf_dirty(c) (0)
-#define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e)
-#define jffs2_wbuf_timeout NULL
-#define jffs2_wbuf_process NULL
-#define jffs2_nor_ecc(c) (0)
-#else
-#error no nand yet
-#endif
-
-#ifndef BUG_ON
-#define BUG_ON(x) do { if (unlikely(x)) BUG(); } while(0)
-#endif
-
-#define __init
-
-#endif /* __JFFS2_OS_ECOS_H__ */
diff --git a/components/dfs/filesystems/jffs2/src/pushpull.h b/components/dfs/filesystems/jffs2/src/pushpull.h
deleted file mode 100644
index 4e84ee38a8..0000000000
--- a/components/dfs/filesystems/jffs2/src/pushpull.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001, 2002 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: pushpull.h,v 1.10 2004/11/16 20:36:11 dwmw2 Exp $
- *
- */
-
-#ifndef __PUSHPULL_H__
-#define __PUSHPULL_H__
-
-#include <linux/errno.h>
-
-struct pushpull {
-	unsigned char *buf;
-	unsigned int buflen;
-	unsigned int ofs;
-	unsigned int reserve;
-};
-
-
-static inline void init_pushpull(struct pushpull *pp, char *buf, unsigned buflen, unsigned ofs, unsigned reserve)
-{
-	pp->buf = (unsigned char *)buf;
-	pp->buflen = buflen;
-	pp->ofs = ofs;
-	pp->reserve = reserve;
-}
-
-static inline int pushbit(struct pushpull *pp, int bit, int use_reserved)
-{
-	if (pp->ofs >= pp->buflen - (use_reserved?0:pp->reserve)) {
-		return -ENOSPC;
-	}
-
-	if (bit) {
-		pp->buf[pp->ofs >> 3] |= (1<<(7-(pp->ofs &7)));
-	}
-	else {
-		pp->buf[pp->ofs >> 3] &= ~(1<<(7-(pp->ofs &7)));
-	}
-	pp->ofs++;
-
-	return 0;
-}
-
-static inline int pushedbits(struct pushpull *pp)
-{
-	return pp->ofs;
-}
-
-static inline int pullbit(struct pushpull *pp)
-{
-	int bit;
-
-	bit = (pp->buf[pp->ofs >> 3] >> (7-(pp->ofs & 7))) & 1;
-
-	pp->ofs++;
-	return bit;
-}
-
-static inline int pulledbits(struct pushpull *pp)
-{
-	return pp->ofs;
-}
-
-#endif /* __PUSHPULL_H__ */
diff --git a/components/dfs/filesystems/jffs2/src/read.c b/components/dfs/filesystems/jffs2/src/read.c
deleted file mode 100644
index a70edd9bc0..0000000000
--- a/components/dfs/filesystems/jffs2/src/read.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: read.c,v 1.41 2005/07/22 10:32:08 dedekind Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/crc32.h>
-#include <linux/pagemap.h>
-#include <linux/mtd/mtd.h>
-#include <linux/compiler.h>
-#include "nodelist.h"
-#include "compr.h"
-
-int jffs2_read_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-		     struct jffs2_full_dnode *fd, unsigned char *buf,
-		     int ofs, int len)
-{
-	struct jffs2_raw_inode *ri;
-	size_t readlen;
-	uint32_t crc;
-	unsigned char *decomprbuf = NULL;
-	unsigned char *readbuf = NULL;
-	int ret = 0,i=0;
-
-	ri = jffs2_alloc_raw_inode();
-	if (!ri)
-		return -ENOMEM;
-
-	ret = jffs2_flash_read(c, ref_offset(fd->raw), sizeof(*ri), &readlen, (unsigned char *)ri);
-	if (ret) {
-		jffs2_free_raw_inode(ri);
-		printk(KERN_WARNING "Error reading node from 0x%08x: %d\n", ref_offset(fd->raw), ret);
-		return ret;
-	}
-	if (readlen != sizeof(*ri)) {
-		jffs2_free_raw_inode(ri);
-		printk(KERN_WARNING "Short read from 0x%08x: wanted 0x%zx bytes, got 0x%zx\n",
-		       ref_offset(fd->raw), sizeof(*ri), readlen);
-		return -EIO;
-	}
-	crc = crc32(0, ri, sizeof(*ri)-8);
-
-	D1(printk(KERN_DEBUG "Node read from %08x: node_crc %08x, calculated CRC %08x. dsize %x, csize %x, offset %x, buf %p\n",
-		  ref_offset(fd->raw), je32_to_cpu(ri->node_crc),
-		  crc, je32_to_cpu(ri->dsize), je32_to_cpu(ri->csize),
-		  je32_to_cpu(ri->offset), buf));
-	if (crc != je32_to_cpu(ri->node_crc)) {
-		printk(KERN_WARNING "Node CRC %08x != calculated CRC %08x for node at %08x\n",
-		       je32_to_cpu(ri->node_crc), crc, ref_offset(fd->raw));
-		ret = -EIO;
-		goto out_ri;
-	}
-	/* There was a bug where we wrote hole nodes out with csize/dsize
-	   swapped. Deal with it */
-	if (ri->compr == JFFS2_COMPR_ZERO && !je32_to_cpu(ri->dsize) &&
-	    je32_to_cpu(ri->csize)) {
-		ri->dsize = ri->csize;
-		ri->csize = cpu_to_je32(0);
-	}
-
-	D1(if(ofs + len > je32_to_cpu(ri->dsize)) {
-		printk(KERN_WARNING "jffs2_read_dnode() asked for %d bytes at %d from %d-byte node\n",
-		       len, ofs, je32_to_cpu(ri->dsize));
-		ret = -EINVAL;
-		goto out_ri;
-	});
-
-
-	if (ri->compr == JFFS2_COMPR_ZERO) {
-		memset(buf, 0, len);
-		goto out_ri;
-	}
-
-	/* Cases:
-	   Reading whole node and it's uncompressed - read directly to buffer provided, check CRC.
-	   Reading whole node and it's compressed - read into comprbuf, check CRC and decompress to buffer provided
-	   Reading partial node and it's uncompressed - read into readbuf, check CRC, and copy
-	   Reading partial node and it's compressed - read into readbuf, check checksum, decompress to decomprbuf and copy
-	*/
-	if (ri->compr == JFFS2_COMPR_NONE && len == je32_to_cpu(ri->dsize)) {
-		readbuf = buf;
-	} else {
-		readbuf = kmalloc(je32_to_cpu(ri->csize), GFP_KERNEL);
-		if (!readbuf) {
-			ret = -ENOMEM;
-			goto out_ri;
-		}
-	}
-	if (ri->compr != JFFS2_COMPR_NONE) {
-		if (len < je32_to_cpu(ri->dsize)) {
-			decomprbuf = kmalloc(je32_to_cpu(ri->dsize), GFP_KERNEL);
-			if (!decomprbuf) {
-				ret = -ENOMEM;
-				goto out_readbuf;
-			}
-		} else {
-			decomprbuf = buf;
-		}
-	} else {
-		decomprbuf = readbuf;
-	}
-
-	D2(printk(KERN_DEBUG "Read %d bytes to %p\n", je32_to_cpu(ri->csize),
-		  readbuf));
-	ret = jffs2_flash_read(c, (ref_offset(fd->raw)) + sizeof(*ri),
-			       je32_to_cpu(ri->csize), &readlen, readbuf);
-
-	if (!ret && readlen != je32_to_cpu(ri->csize))
-		ret = -EIO;
-	if (ret)
-		goto out_decomprbuf;
-
-	crc = crc32(0, readbuf, je32_to_cpu(ri->csize));
-	if (crc != je32_to_cpu(ri->data_crc)) {
-		printk(KERN_WARNING "Data CRC %08x != calculated CRC %08x for node at %08x\n",
-		       je32_to_cpu(ri->data_crc), crc, ref_offset(fd->raw));
-		ret = -EIO;
-		goto out_decomprbuf;
-	}
-	D2(printk(KERN_DEBUG "Data CRC matches calculated CRC %08x\n", crc));
-	if (ri->compr != JFFS2_COMPR_NONE) {
-		D2(printk(KERN_DEBUG "Decompress %d bytes from %p to %d bytes at %p\n",
-			  je32_to_cpu(ri->csize), readbuf, je32_to_cpu(ri->dsize), decomprbuf));
-        //add for debug
-//        for (i=0; i<je32_to_cpu(ri->csize); i++)
-//        {
-//            printf("%02x ", readbuf[i]);
-//            if( (i+1) % 16 == 0)
-//                printf("\n");
-//		}
-		//end debug
-		ret = jffs2_decompress(c, f, ri->compr | (ri->usercompr << 8), readbuf, decomprbuf, je32_to_cpu(ri->csize), je32_to_cpu(ri->dsize));
-		if (ret) {
-			printk(KERN_WARNING "Error: jffs2_decompress returned %d\n", ret);
-			goto out_decomprbuf;
-		}
-	}
-
-	if (len < je32_to_cpu(ri->dsize)) {
-		memcpy(buf, decomprbuf+ofs, len);
-	}
- out_decomprbuf:
-	if(decomprbuf != buf && decomprbuf != readbuf)
-		kfree(decomprbuf);
- out_readbuf:
-	if(readbuf != buf)
-		kfree(readbuf);
- out_ri:
-	jffs2_free_raw_inode(ri);
-
-	return ret;
-}
-
-int jffs2_read_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-			   unsigned char *buf, uint32_t offset, uint32_t len)
-{
-	uint32_t end = offset + len;
-	struct jffs2_node_frag *frag;
-	int ret;
-
-	D1(printk(KERN_DEBUG "jffs2_read_inode_range: ino #%u, range 0x%08x-0x%08x\n",
-		  f->inocache->ino, offset, offset+len));
-
-	frag = jffs2_lookup_node_frag(&f->fragtree, offset);
-
-	/* XXX FIXME: Where a single physical node actually shows up in two
-	   frags, we read it twice. Don't do that. */
-	/* Now we're pointing at the first frag which overlaps our page */
-	while(offset < end) {
-		D2(printk(KERN_DEBUG "jffs2_read_inode_range: offset %d, end %d\n", offset, end));
-		if (unlikely(!frag || frag->ofs > offset)) {
-			uint32_t holesize = end - offset;
-			if (frag) {
-				D1(printk(KERN_NOTICE "Eep. Hole in ino #%u fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n", f->inocache->ino, frag->ofs, offset));
-				holesize = min(holesize, frag->ofs - offset);
-			}
-			D1(printk(KERN_DEBUG "Filling non-frag hole from %d-%d\n", offset, offset+holesize));
-			memset(buf, 0, holesize);
-			buf += holesize;
-			offset += holesize;
-			continue;
-		} else if (unlikely(!frag->node)) {
-			uint32_t holeend = min(end, frag->ofs + frag->size);
-			D1(printk(KERN_DEBUG "Filling frag hole from %d-%d (frag 0x%x 0x%x)\n", offset, holeend, frag->ofs, frag->ofs + frag->size));
-			memset(buf, 0, holeend - offset);
-			buf += holeend - offset;
-			offset = holeend;
-			frag = frag_next(frag);
-			continue;
-		} else {
-			uint32_t readlen;
-			uint32_t fragofs; /* offset within the frag to start reading */
-
-			fragofs = offset - frag->ofs;
-			readlen = min(frag->size - fragofs, end - offset);
-			D1(printk(KERN_DEBUG "Reading %d-%d from node at 0x%08x (%d)\n",
-				  frag->ofs+fragofs, frag->ofs+fragofs+readlen,
-				  ref_offset(frag->node->raw), ref_flags(frag->node->raw)));
-			ret = jffs2_read_dnode(c, f, frag->node, buf, fragofs + frag->ofs - frag->node->ofs, readlen);
-			D2(printk(KERN_DEBUG "node read done\n"));
-			if (ret) {
-				D1(printk(KERN_DEBUG"jffs2_read_inode_range error %d\n",ret));
-				memset(buf, 0, readlen);
-				return ret;
-			}
-			buf += readlen;
-			offset += readlen;
-			frag = frag_next(frag);
-			D2(printk(KERN_DEBUG "node read was OK. Looping\n"));
-		}
-	}
-	return 0;
-}
-
diff --git a/components/dfs/filesystems/jffs2/src/readinode.c b/components/dfs/filesystems/jffs2/src/readinode.c
deleted file mode 100644
index ae1481fd23..0000000000
--- a/components/dfs/filesystems/jffs2/src/readinode.c
+++ /dev/null
@@ -1,895 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: readinode.c,v 1.132 2005/07/28 14:46:40 dedekind Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/crc32.h>
-#include <linux/pagemap.h>
-#include <linux/mtd/mtd.h>
-#include <linux/compiler.h>
-#include "nodelist.h"
-
-void jffs2_truncate_fragtree (struct jffs2_sb_info *c, struct rb_root *list, uint32_t size)
-{
-	struct jffs2_node_frag *frag = jffs2_lookup_node_frag(list, size);
-
-	JFFS2_DBG_FRAGTREE("truncating fragtree to 0x%08x bytes\n", size);
-
-	/* We know frag->ofs <= size. That's what lookup does for us */
-	if (frag && frag->ofs != size) {
-		if (frag->ofs+frag->size >= size) {
-			JFFS2_DBG_FRAGTREE2("truncating frag 0x%08x-0x%08x\n", frag->ofs, frag->ofs+frag->size);
-			frag->size = size - frag->ofs;
-		}
-		frag = frag_next(frag);
-	}
-	while (frag && frag->ofs >= size) {
-		struct jffs2_node_frag *next = frag_next(frag);
-
-		JFFS2_DBG_FRAGTREE("removing frag 0x%08x-0x%08x\n", frag->ofs, frag->ofs+frag->size);
-		frag_erase(frag, list);
-		jffs2_obsolete_node_frag(c, frag);
-		frag = next;
-	}
-}
-
-/* 
- * Put a new tmp_dnode_info into the temporaty RB-tree, keeping the list in 
- * order of increasing version.
- */
-static void jffs2_add_tn_to_tree(struct jffs2_tmp_dnode_info *tn, struct rb_root *list)
-{
-	struct rb_node **p = &list->rb_node;
-	struct rb_node * parent = NULL;
-	struct jffs2_tmp_dnode_info *this;
-
-	while (*p) {
-		parent = *p;
-		this = rb_entry(parent, struct jffs2_tmp_dnode_info, rb);
-
-		/* There may actually be a collision here, but it doesn't
-		   actually matter. As long as the two nodes with the same
-		   version are together, it's all fine. */
-		if (tn->version < this->version)
-			p = &(*p)->rb_left;
-		else
-			p = &(*p)->rb_right;
-        }
-
-	rb_link_node(&tn->rb, parent, p);
-	rb_insert_color(&tn->rb, list);
-}
-
-static void jffs2_free_tmp_dnode_info_list(struct rb_root *list)
-{
-	struct rb_node *this;
-	struct jffs2_tmp_dnode_info *tn;
-
-	this = list->rb_node;
-
-	/* Now at bottom of tree */
-	while (this) {
-		if (this->rb_left)
-			this = this->rb_left;
-		else if (this->rb_right)
-			this = this->rb_right;
-		else {
-			tn = rb_entry(this, struct jffs2_tmp_dnode_info, rb);
-			jffs2_free_full_dnode(tn->fn);
-			jffs2_free_tmp_dnode_info(tn);
-
-			this = this->rb_parent;
-			if (!this)
-				break;
-
-			if (this->rb_left == &tn->rb)
-				this->rb_left = NULL;
-			else if (this->rb_right == &tn->rb)
-				this->rb_right = NULL;
-			else BUG();
-		}
-	}
-	list->rb_node = NULL;
-}
-
-static void jffs2_free_full_dirent_list(struct jffs2_full_dirent *fd)
-{
-	struct jffs2_full_dirent *next;
-
-	while (fd) {
-		next = fd->next;
-		jffs2_free_full_dirent(fd);
-		fd = next;
-	}
-}
-
-/* Returns first valid node after 'ref'. May return 'ref' */
-static struct jffs2_raw_node_ref *jffs2_first_valid_node(struct jffs2_raw_node_ref *ref)
-{
-	while (ref && ref->next_in_ino) {
-		if (!ref_obsolete(ref))
-			return ref;
-		JFFS2_DBG_NODEREF("node at 0x%08x is obsoleted. Ignoring.\n", ref_offset(ref));
-		ref = ref->next_in_ino;
-	}
-	return NULL;
-}
-
-/*
- * Helper function for jffs2_get_inode_nodes().
- * It is called every time an directory entry node is found.
- *
- * Returns: 0 on succes;
- * 	    1 if the node should be marked obsolete;
- * 	    negative error code on failure.
- */
-static inline int
-read_direntry(struct jffs2_sb_info *c,
-	      struct jffs2_raw_node_ref *ref,
-	      struct jffs2_raw_dirent *rd,
-	      uint32_t read,
-	      struct jffs2_full_dirent **fdp,
-	      int32_t *latest_mctime,
-	      uint32_t *mctime_ver)
-{
-	struct jffs2_full_dirent *fd;
-	
-	/* The direntry nodes are checked during the flash scanning */
-	BUG_ON(ref_flags(ref) == REF_UNCHECKED);
-	/* Obsoleted. This cannot happen, surely? dwmw2 20020308 */
-	BUG_ON(ref_obsolete(ref));
-			
-	/* Sanity check */
-	if (unlikely(PAD((rd->nsize + sizeof(*rd))) != PAD(je32_to_cpu(rd->totlen)))) {
-		JFFS2_ERROR("illegal nsize in node at %#08x: nsize %#02x, totlen %#04x\n",
-		       ref_offset(ref), rd->nsize, je32_to_cpu(rd->totlen));
-		return 1;
-	}
-	
-	fd = jffs2_alloc_full_dirent(rd->nsize + 1);
-	if (unlikely(!fd))
-		return -ENOMEM;
-
-	fd->raw = ref;
-	fd->version = je32_to_cpu(rd->version);
-	fd->ino = je32_to_cpu(rd->ino);
-	fd->type = rd->type;
-
-	/* Pick out the mctime of the latest dirent */
-	if(fd->version > *mctime_ver) {
-		*mctime_ver = fd->version;
-		*latest_mctime = je32_to_cpu(rd->mctime);
-	}
-
-	/* 
-	 * Copy as much of the name as possible from the raw
-	 * dirent we've already read from the flash.
-	 */
-	if (read > sizeof(*rd))
-		memcpy(&fd->name[0], &rd->name[0],
-		       min_t(uint32_t, rd->nsize, (read - sizeof(*rd)) ));
-		
-	/* Do we need to copy any more of the name directly from the flash? */
-	if (rd->nsize + sizeof(*rd) > read) {
-		/* FIXME: point() */
-		int err;
-		int already = read - sizeof(*rd);
-			
-		err = jffs2_flash_read(c, (ref_offset(ref)) + read, 
-				rd->nsize - already, (size_t*)&read, &fd->name[already]);
-		if (unlikely(read != rd->nsize - already) && likely(!err))
-			return -EIO;
-			
-		if (unlikely(err)) {
-			JFFS2_ERROR("read remainder of name: error %d\n", err);
-			jffs2_free_full_dirent(fd);
-			return -EIO;
-		}
-	}
-	
-	fd->nhash = full_name_hash(fd->name, rd->nsize);
-	fd->next = NULL;
-	fd->name[rd->nsize] = '\0';
-	
-	/*
-	 * Wheee. We now have a complete jffs2_full_dirent structure, with
-	 * the name in it and everything. Link it into the list 
-	 */
-	jffs2_add_fd_to_list(c, fd, fdp);
-
-	return 0;
-}
-
-/*
- * Helper function for jffs2_get_inode_nodes().
- * It is called every time an inode node is found.
- *
- * Returns: 0 on succes;
- * 	    1 if the node should be marked obsolete;
- * 	    negative error code on failure.
- */
-static inline int
-read_dnode(struct jffs2_sb_info *c,
-	   struct jffs2_raw_node_ref *ref,
-	   struct jffs2_raw_inode *rd,
-	   uint32_t read,
-	   struct rb_root *tnp,
-	   int32_t *latest_mctime,
-	   uint32_t *mctime_ver)
-{
-	struct jffs2_eraseblock *jeb;
-	struct jffs2_tmp_dnode_info *tn;
-	
-	/* Obsoleted. This cannot happen, surely? dwmw2 20020308 */
-	BUG_ON(ref_obsolete(ref));
-
-	/* If we've never checked the CRCs on this node, check them now */
-	if (ref_flags(ref) == REF_UNCHECKED) {
-		uint32_t crc, len;
-
-		crc = crc32(0, rd, sizeof(*rd) - 8);
-		if (unlikely(crc != je32_to_cpu(rd->node_crc))) {
-			JFFS2_NOTICE("header CRC failed on node at %#08x: read %#08x, calculated %#08x\n",
-					ref_offset(ref), je32_to_cpu(rd->node_crc), crc);
-			return 1;
-		}
-		
-		/* Sanity checks */
-		if (unlikely(je32_to_cpu(rd->offset) > je32_to_cpu(rd->isize)) ||
-		    unlikely(PAD(je32_to_cpu(rd->csize) + sizeof(*rd)) != PAD(je32_to_cpu(rd->totlen)))) {
-				JFFS2_WARNING("inode node header CRC is corrupted at %#08x\n", ref_offset(ref));
-				jffs2_dbg_dump_node(c, ref_offset(ref));
-			return 1;
-		}
-
-		if (rd->compr != JFFS2_COMPR_ZERO && je32_to_cpu(rd->csize)) {
-			unsigned char *buf = NULL;
-			uint32_t pointed = 0;
-			int err;
-#ifndef __ECOS
-			if (c->mtd->point) {
-				err = c->mtd->point (c->mtd, ref_offset(ref) + sizeof(*rd), je32_to_cpu(rd->csize),
-						     &read, &buf);
-				if (unlikely(read < je32_to_cpu(rd->csize)) && likely(!err)) {
-					JFFS2_ERROR("MTD point returned len too short: 0x%zx\n", read);
-					c->mtd->unpoint(c->mtd, buf, ref_offset(ref) + sizeof(*rd),
-							je32_to_cpu(rd->csize));
-				} else if (unlikely(err)){
-					JFFS2_ERROR("MTD point failed %d\n", err);
-				} else
-					pointed = 1; /* succefully pointed to device */
-			}
-#endif					
-			if(!pointed){
-				buf = kmalloc(je32_to_cpu(rd->csize), GFP_KERNEL);
-				if (!buf)
-					return -ENOMEM;
-				
-				err = jffs2_flash_read(c, ref_offset(ref) + sizeof(*rd), je32_to_cpu(rd->csize),
-							(size_t*)&read, buf);
-				if (unlikely(read != je32_to_cpu(rd->csize)) && likely(!err))
-					err = -EIO;
-				if (err) {
-					kfree(buf);
-					return err;
-				}
-			}
-			crc = crc32(0, buf, je32_to_cpu(rd->csize));
-			if(!pointed)
-				kfree(buf);
-#ifndef __ECOS
-			else
-				c->mtd->unpoint(c->mtd, buf, ref_offset(ref) + sizeof(*rd), je32_to_cpu(rd->csize));
-#endif
-
-			if (crc != je32_to_cpu(rd->data_crc)) {
-				JFFS2_NOTICE("data CRC failed on node at %#08x: read %#08x, calculated %#08x\n",
-					ref_offset(ref), je32_to_cpu(rd->data_crc), crc);
-				return 1;
-			}
-			
-		}
-
-		/* Mark the node as having been checked and fix the accounting accordingly */
-		jeb = &c->blocks[ref->flash_offset / c->sector_size];
-		len = ref_totlen(c, jeb, ref);
-
-		spin_lock(&c->erase_completion_lock);
-		jeb->used_size += len;
-		jeb->unchecked_size -= len;
-		c->used_size += len;
-		c->unchecked_size -= len;
-
-		/* If node covers at least a whole page, or if it starts at the 
-		   beginning of a page and runs to the end of the file, or if 
-		   it's a hole node, mark it REF_PRISTINE, else REF_NORMAL. 
-
-		   If it's actually overlapped, it'll get made NORMAL (or OBSOLETE) 
-		   when the overlapping node(s) get added to the tree anyway. 
-		*/
-		if ((je32_to_cpu(rd->dsize) >= PAGE_CACHE_SIZE) ||
-		    ( ((je32_to_cpu(rd->offset) & (PAGE_CACHE_SIZE-1))==0) &&
-		      (je32_to_cpu(rd->dsize) + je32_to_cpu(rd->offset) == je32_to_cpu(rd->isize)))) {
-			JFFS2_DBG_READINODE("marking node at %#08x REF_PRISTINE\n", ref_offset(ref));
-			ref->flash_offset = ref_offset(ref) | REF_PRISTINE;
-		} else {
-			JFFS2_DBG_READINODE("marking node at %#08x REF_NORMAL\n", ref_offset(ref));
-			ref->flash_offset = ref_offset(ref) | REF_NORMAL;
-		}
-		spin_unlock(&c->erase_completion_lock);
-	}
-
-	tn = jffs2_alloc_tmp_dnode_info();
-	if (!tn) {
-		JFFS2_ERROR("alloc tn failed\n");
-		return -ENOMEM;
-	}
-
-	tn->fn = jffs2_alloc_full_dnode();
-	if (!tn->fn) {
-		JFFS2_ERROR("alloc fn failed\n");
-		jffs2_free_tmp_dnode_info(tn);
-		return -ENOMEM;
-	}
-	
-	tn->version = je32_to_cpu(rd->version);
-	tn->fn->ofs = je32_to_cpu(rd->offset);
-	tn->fn->raw = ref;
-	
-	/* There was a bug where we wrote hole nodes out with
-	   csize/dsize swapped. Deal with it */
-	if (rd->compr == JFFS2_COMPR_ZERO && !je32_to_cpu(rd->dsize) && je32_to_cpu(rd->csize))
-		tn->fn->size = je32_to_cpu(rd->csize);
-	else // normal case...
-		tn->fn->size = je32_to_cpu(rd->dsize);
-
-	JFFS2_DBG_READINODE("dnode @%08x: ver %u, offset %#04x, dsize %#04x\n",
-		  ref_offset(ref), je32_to_cpu(rd->version), je32_to_cpu(rd->offset), je32_to_cpu(rd->dsize));
-	
-	jffs2_add_tn_to_tree(tn, tnp);
-
-	return 0;
-}
-
-/*
- * Helper function for jffs2_get_inode_nodes().
- * It is called every time an unknown node is found.
- *
- * Returns: 0 on succes;
- * 	    1 if the node should be marked obsolete;
- * 	    negative error code on failure.
- */
-static inline int
-read_unknown(struct jffs2_sb_info *c,
-	     struct jffs2_raw_node_ref *ref,
-	     struct jffs2_unknown_node *un,
-	     uint32_t read)
-{
-	/* We don't mark unknown nodes as REF_UNCHECKED */
-	BUG_ON(ref_flags(ref) == REF_UNCHECKED);
-	
-	un->nodetype = cpu_to_je16(JFFS2_NODE_ACCURATE | je16_to_cpu(un->nodetype));
-
-	if (crc32(0, un, sizeof(struct jffs2_unknown_node) - 4) != je32_to_cpu(un->hdr_crc)) {
-		/* Hmmm. This should have been caught at scan time. */
-		JFFS2_NOTICE("node header CRC failed at %#08x. But it must have been OK earlier.\n", ref_offset(ref));
-		jffs2_dbg_dump_node(c, ref_offset(ref));
-		return 1;
-	} else {
-		switch(je16_to_cpu(un->nodetype) & JFFS2_COMPAT_MASK) {
-
-		case JFFS2_FEATURE_INCOMPAT:
-			JFFS2_ERROR("unknown INCOMPAT nodetype %#04X at %#08x\n",
-				je16_to_cpu(un->nodetype), ref_offset(ref));
-			/* EEP */
-			BUG();
-			break;
-
-		case JFFS2_FEATURE_ROCOMPAT:
-			JFFS2_ERROR("unknown ROCOMPAT nodetype %#04X at %#08x\n",
-					je16_to_cpu(un->nodetype), ref_offset(ref));
-			BUG_ON(!(c->flags & JFFS2_SB_FLAG_RO));
-			break;
-
-		case JFFS2_FEATURE_RWCOMPAT_COPY:
-			JFFS2_NOTICE("unknown RWCOMPAT_COPY nodetype %#04X at %#08x\n",
-					je16_to_cpu(un->nodetype), ref_offset(ref));
-			break;
-
-		case JFFS2_FEATURE_RWCOMPAT_DELETE:
-			JFFS2_NOTICE("unknown RWCOMPAT_DELETE nodetype %#04X at %#08x\n",
-					je16_to_cpu(un->nodetype), ref_offset(ref));
-			return 1;
-		}
-	}
-
-	return 0;
-}
-
-/* Get tmp_dnode_info and full_dirent for all non-obsolete nodes associated
-   with this ino, returning the former in order of version */
-
-static int jffs2_get_inode_nodes(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-				 struct rb_root *tnp, struct jffs2_full_dirent **fdp,
-				 uint32_t *highest_version, uint32_t *latest_mctime,
-				 uint32_t *mctime_ver)
-{
-	struct jffs2_raw_node_ref *ref, *valid_ref;
-	struct rb_root ret_tn = RB_ROOT;
-	struct jffs2_full_dirent *ret_fd = NULL;
-	union jffs2_node_union node;
-	size_t retlen;
-	int err;
-
-	*mctime_ver = 0;
-	
-	JFFS2_DBG_READINODE("ino #%u\n", f->inocache->ino);
-
-	spin_lock(&c->erase_completion_lock);
-
-	valid_ref = jffs2_first_valid_node(f->inocache->nodes);
-
-	if (!valid_ref && (f->inocache->ino != 1))
-		JFFS2_WARNING("no valid nodes for ino #%u\n", f->inocache->ino);
-
-	while (valid_ref) {
-		/* We can hold a pointer to a non-obsolete node without the spinlock,
-		   but _obsolete_ nodes may disappear at any time, if the block
-		   they're in gets erased. So if we mark 'ref' obsolete while we're
-		   not holding the lock, it can go away immediately. For that reason,
-		   we find the next valid node first, before processing 'ref'.
-		*/
-		ref = valid_ref;
-		valid_ref = jffs2_first_valid_node(ref->next_in_ino);
-		spin_unlock(&c->erase_completion_lock);
-
-		cond_resched();
-
-		/* FIXME: point() */
-		err = jffs2_flash_read(c, (ref_offset(ref)), 
-				       min_t(uint32_t, ref_totlen(c, NULL, ref), sizeof(node)),
-				       &retlen, (void *)&node);
-		if (err) {
-			JFFS2_ERROR("error %d reading node at 0x%08x in get_inode_nodes()\n", err, ref_offset(ref));
-			goto free_out;
-		}
-			
-		switch (je16_to_cpu(node.u.nodetype)) {
-			
-		case JFFS2_NODETYPE_DIRENT:
-			JFFS2_DBG_READINODE("node at %08x (%d) is a dirent node\n", ref_offset(ref), ref_flags(ref));
-			
-			if (retlen < sizeof(node.d)) {
-				JFFS2_ERROR("short read dirent at %#08x\n", ref_offset(ref));
-				err = -EIO;
-				goto free_out;
-			}
-
-			err = read_direntry(c, ref, &node.d, retlen, &ret_fd, (int32_t *)latest_mctime, mctime_ver);
-			if (err == 1) {
-				jffs2_mark_node_obsolete(c, ref);
-				break;
-			} else if (unlikely(err))
-				goto free_out;
-			
-			if (je32_to_cpu(node.d.version) > *highest_version)
-				*highest_version = je32_to_cpu(node.d.version);
-
-			break;
-
-		case JFFS2_NODETYPE_INODE:
-			JFFS2_DBG_READINODE("node at %08x (%d) is a data node\n", ref_offset(ref), ref_flags(ref));
-			
-			if (retlen < sizeof(node.i)) {
-				JFFS2_ERROR("short read dnode at %#08x\n", ref_offset(ref));
-				err = -EIO;
-				goto free_out;
-			}
-
-			err = read_dnode(c, ref, &node.i, retlen, &ret_tn, (int32_t *)latest_mctime, mctime_ver);
-			if (err == 1) {
-				jffs2_mark_node_obsolete(c, ref);
-				break;
-			} else if (unlikely(err))
-				goto free_out;
-
-			if (je32_to_cpu(node.i.version) > *highest_version)
-				*highest_version = je32_to_cpu(node.i.version);
-			
-			JFFS2_DBG_READINODE("version %d, highest_version now %d\n",
-					je32_to_cpu(node.i.version), *highest_version);
-
-			break;
-
-		default:
-			/* Check we've managed to read at least the common node header */
-			if (retlen < sizeof(struct jffs2_unknown_node)) {
-				JFFS2_ERROR("short read unknown node at %#08x\n", ref_offset(ref));
-				return -EIO;
-			}
-
-			err = read_unknown(c, ref, &node.u, retlen);
-			if (err == 1) {
-				jffs2_mark_node_obsolete(c, ref);
-				break;
-			} else if (unlikely(err))
-				goto free_out;
-
-		}
-		spin_lock(&c->erase_completion_lock);
-
-	}
-	spin_unlock(&c->erase_completion_lock);
-	*tnp = ret_tn;
-	*fdp = ret_fd;
-
-	return 0;
-
- free_out:
-	jffs2_free_tmp_dnode_info_list(&ret_tn);
-	jffs2_free_full_dirent_list(ret_fd);
-	return err;
-}
-
-static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c, 
-					struct jffs2_inode_info *f,
-					struct jffs2_raw_inode *latest_node)
-{
-	struct jffs2_tmp_dnode_info *tn = NULL;
-	struct rb_root tn_list;
-	struct rb_node *rb, *repl_rb;
-	struct jffs2_full_dirent *fd_list;
-	struct jffs2_full_dnode *fn = NULL;
-	uint32_t crc;
-	uint32_t latest_mctime, mctime_ver;
-	uint32_t mdata_ver = 0;
-	size_t retlen;
-	int ret;
-
-	JFFS2_DBG_READINODE("ino #%u nlink is %d\n", f->inocache->ino, f->inocache->nlink);
-
-	/* Grab all nodes relevant to this ino */
-	ret = jffs2_get_inode_nodes(c, f, &tn_list, &fd_list, &f->highest_version, &latest_mctime, &mctime_ver);
-
-	if (ret) {
-		JFFS2_ERROR("cannot read nodes for ino %u, returned error is %d\n", f->inocache->ino, ret);
-		if (f->inocache->state == INO_STATE_READING)
-			jffs2_set_inocache_state(c, f->inocache, INO_STATE_CHECKEDABSENT);
-		return ret;
-	}
-	f->dents = fd_list;
-
-	rb = rb_first(&tn_list);
-
-	while (rb) {
-		tn = rb_entry(rb, struct jffs2_tmp_dnode_info, rb);
-		fn = tn->fn;
-
-		if (f->metadata) {
-			if (likely(tn->version >= mdata_ver)) {
-				JFFS2_DBG_READINODE("obsoleting old metadata at 0x%08x\n", ref_offset(f->metadata->raw));
-				jffs2_mark_node_obsolete(c, f->metadata->raw);
-				jffs2_free_full_dnode(f->metadata);
-				f->metadata = NULL;
-				
-				mdata_ver = 0;
-			} else {
-				/* This should never happen. */
-				JFFS2_ERROR("Er. New metadata at 0x%08x with ver %d is actually older than previous ver %d at 0x%08x\n",
-					  ref_offset(fn->raw), tn->version, mdata_ver, ref_offset(f->metadata->raw));
-				jffs2_mark_node_obsolete(c, fn->raw);
-				jffs2_free_full_dnode(fn);
-				/* Fill in latest_node from the metadata, not this one we're about to free... */
-				fn = f->metadata;
-				goto next_tn;
-			}
-		}
-
-		if (fn->size) {
-			jffs2_add_full_dnode_to_inode(c, f, fn);
-		} else {
-			/* Zero-sized node at end of version list. Just a metadata update */
-			JFFS2_DBG_READINODE("metadata @%08x: ver %d\n", ref_offset(fn->raw), tn->version);
-			f->metadata = fn;
-			mdata_ver = tn->version;
-		}
-	next_tn:
-		BUG_ON(rb->rb_left);
-		if (rb->rb_parent && rb->rb_parent->rb_left == rb) {
-			/* We were then left-hand child of our parent. We need
-			   to move our own right-hand child into our place. */
-			repl_rb = rb->rb_right;
-			if (repl_rb)
-				repl_rb->rb_parent = rb->rb_parent;
-		} else
-			repl_rb = NULL;
-
-		rb = rb_next(rb);
-
-		/* Remove the spent tn from the tree; don't bother rebalancing
-		   but put our right-hand child in our own place. */
-		if (tn->rb.rb_parent) {
-			if (tn->rb.rb_parent->rb_left == &tn->rb)
-				tn->rb.rb_parent->rb_left = repl_rb;
-			else if (tn->rb.rb_parent->rb_right == &tn->rb)
-				tn->rb.rb_parent->rb_right = repl_rb;
-			else BUG();
-		} else if (tn->rb.rb_right)
-			tn->rb.rb_right->rb_parent = NULL;
-
-		jffs2_free_tmp_dnode_info(tn);
-	}
-	jffs2_dbg_fragtree_paranoia_check_nolock(f);
-
-	if (!fn) {
-		/* No data nodes for this inode. */
-		if (f->inocache->ino != 1) {
-			JFFS2_WARNING("no data nodes found for ino #%u\n", f->inocache->ino);
-			if (!fd_list) {
-				if (f->inocache->state == INO_STATE_READING)
-					jffs2_set_inocache_state(c, f->inocache, INO_STATE_CHECKEDABSENT);
-				return -EIO;
-			}
-			JFFS2_NOTICE("but it has children so we fake some modes for it\n");
-		}
-		latest_node->mode = cpu_to_jemode(S_IFDIR|S_IRUGO|S_IWUSR|S_IXUGO);
-		latest_node->version = cpu_to_je32(0);
-		latest_node->atime = latest_node->ctime = latest_node->mtime = cpu_to_je32(0);
-		latest_node->isize = cpu_to_je32(0);
-		latest_node->gid = cpu_to_je16(0);
-		latest_node->uid = cpu_to_je16(0);
-		if (f->inocache->state == INO_STATE_READING)
-			jffs2_set_inocache_state(c, f->inocache, INO_STATE_PRESENT);
-		return 0;
-	}
-
-	ret = jffs2_flash_read(c, ref_offset(fn->raw), sizeof(*latest_node), &retlen, (void *)latest_node);
-	if (ret || retlen != sizeof(*latest_node)) {
-		JFFS2_ERROR("failed to read from flash: error %d, %zd of %zd bytes read\n",
-			ret, retlen, sizeof(*latest_node));
-		/* FIXME: If this fails, there seems to be a memory leak. Find it. */
-		up(&f->sem);
-		jffs2_do_clear_inode(c, f);
-		return ret?ret:-EIO;
-	}
-
-	crc = crc32(0, latest_node, sizeof(*latest_node)-8);
-	if (crc != je32_to_cpu(latest_node->node_crc)) {
-		JFFS2_ERROR("CRC failed for read_inode of inode %u at physical location 0x%x\n",
-			f->inocache->ino, ref_offset(fn->raw));
-		up(&f->sem);
-		jffs2_do_clear_inode(c, f);
-		return -EIO;
-	}
-
-	switch(jemode_to_cpu(latest_node->mode) & S_IFMT) {
-	case S_IFDIR:
-		if (mctime_ver > je32_to_cpu(latest_node->version)) {
-			/* The times in the latest_node are actually older than
-			   mctime in the latest dirent. Cheat. */
-			latest_node->ctime = latest_node->mtime = cpu_to_je32(latest_mctime);
-		}
-		break;
-
-			
-	case S_IFREG:
-		/* If it was a regular file, truncate it to the latest node's isize */
-		jffs2_truncate_fragtree(c, &f->fragtree, je32_to_cpu(latest_node->isize));
-		break;
-
-//	case S_IFLNK:	  prife
-//		/* Hack to work around broken isize in old symlink code.
-//		   Remove this when dwmw2 comes to his senses and stops
-//		   symlinks from being an entirely gratuitous special
-//		   case. */
-//		if (!je32_to_cpu(latest_node->isize))
-//			latest_node->isize = latest_node->dsize;
-//
-//		if (f->inocache->state != INO_STATE_CHECKING) {
-//			/* Symlink's inode data is the target path. Read it and
-//			 * keep in RAM to facilitate quick follow symlink
-//			 * operation. */
-//			f->target = kmalloc(je32_to_cpu(latest_node->csize) + 1, GFP_KERNEL);
-//			if (!f->target) {
-//				JFFS2_ERROR("can't allocate %d bytes of memory for the symlink target path cache\n", je32_to_cpu(latest_node->csize));
-//				up(&f->sem);
-//				jffs2_do_clear_inode(c, f);
-//				return -ENOMEM;
-//			}
-//			
-//			ret = jffs2_flash_read(c, ref_offset(fn->raw) + sizeof(*latest_node),
-//						je32_to_cpu(latest_node->csize), &retlen, (char *)f->target);
-//			
-//			if (ret  || retlen != je32_to_cpu(latest_node->csize)) {
-//				if (retlen != je32_to_cpu(latest_node->csize))
-//					ret = -EIO;
-//				kfree(f->target);
-//				f->target = NULL;
-//				up(&f->sem);
-//				jffs2_do_clear_inode(c, f);
-//				return -ret;
-//			}
-//
-//			f->target[je32_to_cpu(latest_node->csize)] = '\0';
-//			JFFS2_DBG_READINODE("symlink's target '%s' cached\n", f->target);
-//		}
-//		
-//		/* fall through... */
-
-	case S_IFBLK:
-	case S_IFCHR:
-		/* Certain inode types should have only one data node, and it's
-		   kept as the metadata node */
-		if (f->metadata) {
-			JFFS2_ERROR("Argh. Special inode #%u with mode 0%o had metadata node\n",
-			       f->inocache->ino, jemode_to_cpu(latest_node->mode));
-			up(&f->sem);
-			jffs2_do_clear_inode(c, f);
-			return -EIO;
-		}
-		if (!frag_first(&f->fragtree)) {
-			JFFS2_ERROR("Argh. Special inode #%u with mode 0%o has no fragments\n",
-			       f->inocache->ino, jemode_to_cpu(latest_node->mode));
-			up(&f->sem);
-			jffs2_do_clear_inode(c, f);
-			return -EIO;
-		}
-		/* ASSERT: f->fraglist != NULL */
-		if (frag_next(frag_first(&f->fragtree))) {
-			JFFS2_ERROR("Argh. Special inode #%u with mode 0x%x had more than one node\n",
-			       f->inocache->ino, jemode_to_cpu(latest_node->mode));
-			/* FIXME: Deal with it - check crc32, check for duplicate node, check times and discard the older one */
-			up(&f->sem);
-			jffs2_do_clear_inode(c, f);
-			return -EIO;
-		}
-		/* OK. We're happy */
-		f->metadata = frag_first(&f->fragtree)->node;
-		jffs2_free_node_frag(frag_first(&f->fragtree));
-		f->fragtree.rb_node = NULL;//f->fragtree = RB_ROOT; // modify it for vs
-		break;
-	}
-	if (f->inocache->state == INO_STATE_READING)
-		jffs2_set_inocache_state(c, f->inocache, INO_STATE_PRESENT);
-
-	return 0;
-}
-
-/* Scan the list of all nodes present for this ino, build map of versions, etc. */
-int jffs2_do_read_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, 
-			uint32_t ino, struct jffs2_raw_inode *latest_node)
-{
-	JFFS2_DBG_READINODE("read inode #%u\n", ino);
-
- retry_inocache:
-	spin_lock(&c->inocache_lock);
-	f->inocache = jffs2_get_ino_cache(c, ino);
-
-	if (f->inocache) {
-		/* Check its state. We may need to wait before we can use it */
-		switch(f->inocache->state) {
-		case INO_STATE_UNCHECKED:
-		case INO_STATE_CHECKEDABSENT:
-			f->inocache->state = INO_STATE_READING;
-			break;
-			
-		case INO_STATE_CHECKING:
-		case INO_STATE_GC:
-			/* If it's in either of these states, we need
-			   to wait for whoever's got it to finish and
-			   put it back. */
-			JFFS2_DBG_READINODE("waiting for ino #%u in state %d\n", ino, f->inocache->state);
-			sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
-			goto retry_inocache;
-
-		case INO_STATE_READING:
-		case INO_STATE_PRESENT:
-			/* Eep. This should never happen. It can
-			happen if Linux calls read_inode() again
-			before clear_inode() has finished though. */
-			JFFS2_ERROR("Eep. Trying to read_inode #%u when it's already in state %d!\n", ino, f->inocache->state);
-			/* Fail. That's probably better than allowing it to succeed */
-			f->inocache = NULL;
-			break;
-
-		default:
-			BUG();
-		}
-	}
-	spin_unlock(&c->inocache_lock);
-
-	if (!f->inocache && ino == 1) {
-		/* Special case - no root inode on medium */
-		f->inocache = jffs2_alloc_inode_cache();
-		if (!f->inocache) {
-			JFFS2_ERROR("cannot allocate inocache for root inode\n");
-			return -ENOMEM;
-		}
-		JFFS2_DBG_READINODE("creating inocache for root inode\n");
-		memset(f->inocache, 0, sizeof(struct jffs2_inode_cache));
-		f->inocache->ino = f->inocache->nlink = 1;
-		f->inocache->nodes = (struct jffs2_raw_node_ref *)f->inocache;
-		f->inocache->state = INO_STATE_READING;
-		jffs2_add_ino_cache(c, f->inocache);
-	}
-	if (!f->inocache) {
-		JFFS2_ERROR("requestied to read an nonexistent ino %u\n", ino);
-		return -ENOENT;
-	}
-
-	return jffs2_do_read_inode_internal(c, f, latest_node);
-}
-
-int jffs2_do_crccheck_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
-{
-	struct jffs2_raw_inode n;
-	struct jffs2_inode_info *f = kmalloc(sizeof(*f), GFP_KERNEL);
-	int ret;
-
-	if (!f)
-		return -ENOMEM;
-
-	memset(f, 0, sizeof(*f));
-	init_MUTEX_LOCKED(&f->sem);
-	f->inocache = ic;
-
-	ret = jffs2_do_read_inode_internal(c, f, &n);
-	if (!ret) {
-		up(&f->sem);
-		jffs2_do_clear_inode(c, f);
-	}
-	kfree (f);
-	return ret;
-}
-
-void jffs2_do_clear_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f)
-{
-	struct jffs2_full_dirent *fd, *fds;
-	int deleted;
-
-	down(&f->sem);
-	deleted = f->inocache && !f->inocache->nlink;
-
-	if (f->inocache && f->inocache->state != INO_STATE_CHECKING)
-		jffs2_set_inocache_state(c, f->inocache, INO_STATE_CLEARING);
-
-	if (f->metadata) {
-		if (deleted)
-			jffs2_mark_node_obsolete(c, f->metadata->raw);
-		jffs2_free_full_dnode(f->metadata);
-	}
-
-	jffs2_kill_fragtree(&f->fragtree, deleted?c:NULL);
-
-	if (f->target) {
-		kfree(f->target);
-		f->target = NULL;
-	}
-	
-	fds = f->dents;
-	while(fds) {
-		fd = fds;
-		fds = fd->next;
-		jffs2_free_full_dirent(fd);
-	}
-
-	if (f->inocache && f->inocache->state != INO_STATE_CHECKING) {
-		jffs2_set_inocache_state(c, f->inocache, INO_STATE_CHECKEDABSENT);
-		if (f->inocache->nodes == (void *)f->inocache)
-			jffs2_del_ino_cache(c, f->inocache);
-	}
-
-	up(&f->sem);
-}
diff --git a/components/dfs/filesystems/jffs2/src/scan.c b/components/dfs/filesystems/jffs2/src/scan.c
deleted file mode 100644
index f67d122a12..0000000000
--- a/components/dfs/filesystems/jffs2/src/scan.c
+++ /dev/null
@@ -1,946 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: scan.c,v 1.121 2005/07/20 15:32:28 dedekind Exp $
- *
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/mtd/mtd.h>
-#include <linux/pagemap.h>
-#include <linux/crc32.h>
-#include <linux/compiler.h>
-#include "nodelist.h"
-
-#define DEFAULT_EMPTY_SCAN_SIZE 1024
-
-#if defined (__GNUC__) 
-#elif defined (MSVC)
-#define typeof(x)  uint32_t 
-#else
-#endif
-
-#define DIRTY_SPACE(x) do { typeof(x) _x = (x); \
-		c->free_size -= _x; c->dirty_size += _x; \
-		jeb->free_size -= _x ; jeb->dirty_size += _x; \
-		}while(0)
-#define USED_SPACE(x) do { typeof(x) _x = (x); \
-		c->free_size -= _x; c->used_size += _x; \
-		jeb->free_size -= _x ; jeb->used_size += _x; \
-		}while(0)
-#define UNCHECKED_SPACE(x) do { typeof(x) _x = (x); \
-		c->free_size -= _x; c->unchecked_size += _x; \
-		jeb->free_size -= _x ; jeb->unchecked_size += _x; \
-		}while(0)
-
-#if defined (__GNUC__)
-#define noisy_printk(noise, args...) do { \
-	if (*(noise)) { \
-		printk(KERN_NOTICE args); \
-		 (*(noise))--; \
-		 if (!(*(noise))) { \
-			 printk(KERN_NOTICE "Further such events for this erase block will not be printed\n"); \
-		 } \
-	} \
-} while(0)
-#elif defined (MSVC)
-#define noisy_printk(noise, ...) do { \
-	if (*(noise)) { \
-		printk(KERN_NOTICE ##__VA_ARGS__); \
-		 (*(noise))--; \
-		 if (!(*(noise))) { \
-			 printk(KERN_NOTICE "Further such events for this erase block will not be printed\n"); \
-		 } \
-	} \
-} while(0)
-#else
-#endif
-
-static uint32_t pseudo_random;
-
-static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-				  unsigned char *buf, uint32_t buf_size);
-
-/* These helper functions _must_ increase ofs and also do the dirty/used space accounting. 
- * Returning an error will abort the mount - bad checksums etc. should just mark the space
- * as dirty.
- */
-static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
-				 struct jffs2_raw_inode *ri, uint32_t ofs);
-static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-				 struct jffs2_raw_dirent *rd, uint32_t ofs);
-
-#define BLK_STATE_ALLFF		0
-#define BLK_STATE_CLEAN		1
-#define BLK_STATE_PARTDIRTY	2
-#define BLK_STATE_CLEANMARKER	3
-#define BLK_STATE_ALLDIRTY	4
-#define BLK_STATE_BADBLOCK	5
-
-static inline int min_free(struct jffs2_sb_info *c)
-{
-	uint32_t min = 2 * sizeof(struct jffs2_raw_inode);
-#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-	if (!jffs2_can_mark_obsolete(c) && min < c->wbuf_pagesize)
-		return c->wbuf_pagesize;
-#endif
-	return min;
-
-}
-
-static inline uint32_t EMPTY_SCAN_SIZE(uint32_t sector_size) {
-	if (sector_size < DEFAULT_EMPTY_SCAN_SIZE)
-		return sector_size;
-	else
-		return DEFAULT_EMPTY_SCAN_SIZE;
-}
-
-int jffs2_scan_medium(struct jffs2_sb_info *c)
-{
-	int i, ret;
-	uint32_t empty_blocks = 0, bad_blocks = 0;
-	unsigned char *flashbuf = NULL;
-	uint32_t buf_size = 0;
-#ifndef __ECOS
-	size_t pointlen;
-
-	if (c->mtd->point) {
-		ret = c->mtd->point (c->mtd, 0, c->mtd->size, &pointlen, &flashbuf);
-		if (!ret && pointlen < c->mtd->size) {
-			/* Don't muck about if it won't let us point to the whole flash */
-			D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", pointlen));
-			c->mtd->unpoint(c->mtd, flashbuf, 0, c->mtd->size);
-			flashbuf = NULL;
-		}
-		if (ret)
-			D1(printk(KERN_DEBUG "MTD point failed %d\n", ret));
-	}
-#endif
-	if (!flashbuf) {
-		/* For NAND it's quicker to read a whole eraseblock at a time,
-		   apparently */
-		if (jffs2_cleanmarker_oob(c))
-			buf_size = c->sector_size;
-		else
-			buf_size = PAGE_SIZE;
-
-		/* Respect kmalloc limitations */
-		if (buf_size > 128*1024)
-			buf_size = 128*1024;
-
-		D1(printk(KERN_DEBUG "Allocating readbuf of %d bytes\n", buf_size));
-		flashbuf = kmalloc(buf_size, GFP_KERNEL);
-		if (!flashbuf)
-			return -ENOMEM;
-	}
-
-	for (i=0; i<c->nr_blocks; i++) {
-		struct jffs2_eraseblock *jeb = &c->blocks[i];
-
-		ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset), buf_size);
-
-		if (ret < 0)
-			goto out;
-
-		jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
-
-		/* Now decide which list to put it on */
-		switch(ret) {
-		case BLK_STATE_ALLFF:
-			/* 
-			 * Empty block.   Since we can't be sure it 
-			 * was entirely erased, we just queue it for erase
-			 * again.  It will be marked as such when the erase
-			 * is complete.  Meanwhile we still count it as empty
-			 * for later checks.
-			 */
-			empty_blocks++;
-			list_add(&jeb->list, &c->erase_pending_list);
-			c->nr_erasing_blocks++;
-			break;
-
-		case BLK_STATE_CLEANMARKER:
-			/* Only a CLEANMARKER node is valid */
-			if (!jeb->dirty_size) {
-				/* It's actually free */
-				list_add(&jeb->list, &c->free_list);
-				c->nr_free_blocks++;
-			} else {
-				/* Dirt */
-				D1(printk(KERN_DEBUG "Adding all-dirty block at 0x%08x to erase_pending_list\n", jeb->offset));
-				list_add(&jeb->list, &c->erase_pending_list);
-				c->nr_erasing_blocks++;
-			}
-			break;
-
-		case BLK_STATE_CLEAN:
-                        /* Full (or almost full) of clean data. Clean list */
-                        list_add(&jeb->list, &c->clean_list);
-			break;
-
-		case BLK_STATE_PARTDIRTY:
-                        /* Some data, but not full. Dirty list. */
-                        /* We want to remember the block with most free space
-                           and stick it in the 'nextblock' position to start writing to it. */
-                        if (jeb->free_size > min_free(c) && 
-			    (!c->nextblock || c->nextblock->free_size < jeb->free_size)) {
-                                /* Better candidate for the next writes to go to */
-                                if (c->nextblock) {
-					c->nextblock->dirty_size += c->nextblock->free_size + c->nextblock->wasted_size;
-					c->dirty_size += c->nextblock->free_size + c->nextblock->wasted_size;
-					c->free_size -= c->nextblock->free_size;
-					c->wasted_size -= c->nextblock->wasted_size;
-					c->nextblock->free_size = c->nextblock->wasted_size = 0;
-					if (VERYDIRTY(c, c->nextblock->dirty_size)) {
-						list_add(&c->nextblock->list, &c->very_dirty_list);
-					} else {
-						list_add(&c->nextblock->list, &c->dirty_list);
-					}
-				}
-                                c->nextblock = jeb;
-                        } else {
-				jeb->dirty_size += jeb->free_size + jeb->wasted_size;
-				c->dirty_size += jeb->free_size + jeb->wasted_size;
-				c->free_size -= jeb->free_size;
-				c->wasted_size -= jeb->wasted_size;
-				jeb->free_size = jeb->wasted_size = 0;
-				if (VERYDIRTY(c, jeb->dirty_size)) {
-					list_add(&jeb->list, &c->very_dirty_list);
-				} else {
-					list_add(&jeb->list, &c->dirty_list);
-				}
-                        }
-			break;
-
-		case BLK_STATE_ALLDIRTY:
-			/* Nothing valid - not even a clean marker. Needs erasing. */
-                        /* For now we just put it on the erasing list. We'll start the erases later */
-			D1(printk(KERN_NOTICE "JFFS2: Erase block at 0x%08x is not formatted. It will be erased\n", jeb->offset));
-                        list_add(&jeb->list, &c->erase_pending_list);
-			c->nr_erasing_blocks++;
-			break;
-			
-		case BLK_STATE_BADBLOCK:
-			D1(printk(KERN_NOTICE "JFFS2: Block at 0x%08x is bad\n", jeb->offset));
-                        list_add(&jeb->list, &c->bad_list);
-			c->bad_size += c->sector_size;
-			c->free_size -= c->sector_size;
-			bad_blocks++;
-			break;
-		default:
-			printk(KERN_WARNING "jffs2_scan_medium(): unknown block state\n");
-			BUG();	
-		}
-	}
-	
-	/* Nextblock dirty is always seen as wasted, because we cannot recycle it now */
-	if (c->nextblock && (c->nextblock->dirty_size)) {
-		c->nextblock->wasted_size += c->nextblock->dirty_size;
-		c->wasted_size += c->nextblock->dirty_size;
-		c->dirty_size -= c->nextblock->dirty_size;
-		c->nextblock->dirty_size = 0;
-	}
-#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-	if (!jffs2_can_mark_obsolete(c) && c->nextblock && (c->nextblock->free_size & (c->wbuf_pagesize-1))) {
-		/* If we're going to start writing into a block which already 
-		   contains data, and the end of the data isn't page-aligned,
-		   skip a little and align it. */
-
-		uint32_t skip = c->nextblock->free_size & (c->wbuf_pagesize-1);
-
-		D1(printk(KERN_DEBUG "jffs2_scan_medium(): Skipping %d bytes in nextblock to ensure page alignment\n",
-			  skip));
-		c->nextblock->wasted_size += skip;
-		c->wasted_size += skip;
-
-		c->nextblock->free_size -= skip;
-		c->free_size -= skip;
-	}
-#endif
-	if (c->nr_erasing_blocks) {
-		if ( !c->used_size && ((c->nr_free_blocks+empty_blocks+bad_blocks)!= c->nr_blocks || bad_blocks == c->nr_blocks) ) { 
-			printk(KERN_NOTICE "Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes\n");
-			printk(KERN_NOTICE "empty_blocks %d, bad_blocks %d, c->nr_blocks %d\n",empty_blocks,bad_blocks,c->nr_blocks);
-			ret = -EIO;
-			goto out;
-		}
-		jffs2_erase_pending_trigger(c);
-	}
-	ret = 0;
- out:
-	if (buf_size)
-		kfree(flashbuf);
-#ifndef __ECOS
-	else 
-		c->mtd->unpoint(c->mtd, flashbuf, 0, c->mtd->size);
-#endif
-	return ret;
-}
-
-static int jffs2_fill_scan_buf (struct jffs2_sb_info *c, unsigned char *buf,
-				uint32_t ofs, uint32_t len)
-{
-	int ret;
-	size_t retlen;
-
-	ret = jffs2_flash_read(c, ofs, len, &retlen, buf);
-	if (ret) {
-		D1(printk(KERN_WARNING "mtd->read(0x%x bytes from 0x%x) returned %d\n", len, ofs, ret));
-		return ret;
-	}
-	if (retlen < len) {
-		D1(printk(KERN_WARNING "Read at 0x%x gave only 0x%zx bytes\n", ofs, retlen));
-		return -EIO;
-	}
-	D2(printk(KERN_DEBUG "Read 0x%x bytes from 0x%08x into buf\n", len, ofs));
-	D2(printk(KERN_DEBUG "000: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
-		  buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13], buf[14], buf[15]));
-	return 0;
-}
-
-static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
-				  unsigned char *buf, uint32_t buf_size) {
-	struct jffs2_unknown_node *node;
-	struct jffs2_unknown_node crcnode;
-	uint32_t ofs, prevofs;
-	uint32_t hdr_crc, buf_ofs, buf_len;
-	int err;
-	int noise = 0;
-#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-	int cleanmarkerfound = 0;
-#endif
-
-	ofs = jeb->offset;
-	prevofs = jeb->offset - 1;
-
-	D1(printk(KERN_DEBUG "jffs2_scan_eraseblock(): Scanning block at 0x%x\n", ofs));
-
-#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-	if (jffs2_cleanmarker_oob(c)) {
-		int ret = jffs2_check_nand_cleanmarker(c, jeb);
-		D2(printk(KERN_NOTICE "jffs_check_nand_cleanmarker returned %d\n",ret));
-		/* Even if it's not found, we still scan to see
-		   if the block is empty. We use this information
-		   to decide whether to erase it or not. */
-		switch (ret) {
-		case 0:		cleanmarkerfound = 1; break;
-		case 1: 	break;
-		case 2: 	return BLK_STATE_BADBLOCK;
-		case 3:		return BLK_STATE_ALLDIRTY; /* Block has failed to erase min. once */
-		default: 	return ret;
-		}
-	}
-#endif
-	buf_ofs = jeb->offset;
-
-	if (!buf_size) {
-		buf_len = c->sector_size;
-	} else {
-		buf_len = EMPTY_SCAN_SIZE(c->sector_size);
-		err = jffs2_fill_scan_buf(c, buf, buf_ofs, buf_len);
-		if (err)
-			return err;
-	}
-	
-	/* We temporarily use 'ofs' as a pointer into the buffer/jeb */
-	ofs = 0;
-
-	/* Scan only 4KiB of 0xFF before declaring it's empty */
-	while(ofs < EMPTY_SCAN_SIZE(c->sector_size) && *(uint32_t *)(&buf[ofs]) == 0xFFFFFFFF)
-		ofs += 4;
-
-	if (ofs == EMPTY_SCAN_SIZE(c->sector_size)) {
-#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-		if (jffs2_cleanmarker_oob(c)) {
-			/* scan oob, take care of cleanmarker */
-			int ret = jffs2_check_oob_empty(c, jeb, cleanmarkerfound);
-			D2(printk(KERN_NOTICE "jffs2_check_oob_empty returned %d\n",ret));
-			switch (ret) {
-			case 0:		return cleanmarkerfound ? BLK_STATE_CLEANMARKER : BLK_STATE_ALLFF;
-			case 1: 	return BLK_STATE_ALLDIRTY;
-			default: 	return ret;
-			}
-		}
-#endif
-		D1(printk(KERN_DEBUG "Block at 0x%08x is empty (erased)\n", jeb->offset));
-		if (c->cleanmarker_size == 0)
-			return BLK_STATE_CLEANMARKER;	/* don't bother with re-erase */
-		else
-			return BLK_STATE_ALLFF;	/* OK to erase if all blocks are like this */
-	}
-	if (ofs) {
-		D1(printk(KERN_DEBUG "Free space at %08x ends at %08x\n", jeb->offset,
-			  jeb->offset + ofs));
-		DIRTY_SPACE(ofs);
-	}
-
-	/* Now ofs is a complete physical flash offset as it always was... */
-	ofs += jeb->offset;
-
-	noise = 10;
-
-scan_more:	
-	while(ofs < jeb->offset + c->sector_size) {
-
-		jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
-
-		cond_resched();
-
-		if (ofs & 3) {
-			printk(KERN_WARNING "Eep. ofs 0x%08x not word-aligned!\n", ofs);
-			ofs = PAD(ofs);
-			continue;
-		}
-		if (ofs == prevofs) {
-			printk(KERN_WARNING "ofs 0x%08x has already been seen. Skipping\n", ofs);
-			DIRTY_SPACE(4);
-			ofs += 4;
-			continue;
-		}
-		prevofs = ofs;
-
-		if (jeb->offset + c->sector_size < ofs + sizeof(*node)) {
-			D1(printk(KERN_DEBUG "Fewer than %zd bytes left to end of block. (%x+%x<%x+%zx) Not reading\n", sizeof(struct jffs2_unknown_node),
-				  jeb->offset, c->sector_size, ofs, sizeof(*node)));
-			DIRTY_SPACE((jeb->offset + c->sector_size)-ofs);
-			break;
-		}
-
-		if (buf_ofs + buf_len < ofs + sizeof(*node)) {
-			buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
-			D1(printk(KERN_DEBUG "Fewer than %zd bytes (node header) left to end of buf. Reading 0x%x at 0x%08x\n",
-				  sizeof(struct jffs2_unknown_node), buf_len, ofs));
-			err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
-			if (err)
-				return err;
-			buf_ofs = ofs;
-		}
-
-		node = (struct jffs2_unknown_node *)&buf[ofs-buf_ofs];
-
-		if (*(uint32_t *)(&buf[ofs-buf_ofs]) == 0xffffffff) {
-			uint32_t inbuf_ofs;
-			uint32_t empty_start;
-
-			empty_start = ofs;
-			ofs += 4;
-
-			D1(printk(KERN_DEBUG "Found empty flash at 0x%08x\n", ofs));
-		more_empty:
-			inbuf_ofs = ofs - buf_ofs;
-			while (inbuf_ofs < buf_len) {
-				if (*(uint32_t *)(&buf[inbuf_ofs]) != 0xffffffff) {
-					printk(KERN_WARNING "Empty flash at 0x%08x ends at 0x%08x\n",
-					       empty_start, ofs);
-					DIRTY_SPACE(ofs-empty_start);
-					goto scan_more;
-				}
-
-				inbuf_ofs+=4;
-				ofs += 4;
-			}
-			/* Ran off end. */
-			D1(printk(KERN_DEBUG "Empty flash to end of buffer at 0x%08x\n", ofs));
-
-			/* If we're only checking the beginning of a block with a cleanmarker,
-			   bail now */
-			if (buf_ofs == jeb->offset && jeb->used_size == PAD(c->cleanmarker_size) && 
-			    c->cleanmarker_size && !jeb->dirty_size && !jeb->first_node->next_phys) {
-				D1(printk(KERN_DEBUG "%d bytes at start of block seems clean... assuming all clean\n", EMPTY_SCAN_SIZE(c->sector_size)));
-				return BLK_STATE_CLEANMARKER;
-			}
-
-			/* See how much more there is to read in this eraseblock... */
-			buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
-			if (!buf_len) {
-				/* No more to read. Break out of main loop without marking 
-				   this range of empty space as dirty (because it's not) */
-				D1(printk(KERN_DEBUG "Empty flash at %08x runs to end of block. Treating as free_space\n",
-					  empty_start));
-				break;
-			}
-			D1(printk(KERN_DEBUG "Reading another 0x%x at 0x%08x\n", buf_len, ofs));
-			err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
-			if (err)
-				return err;
-			buf_ofs = ofs;
-			goto more_empty;
-		}
-
-		if (ofs == jeb->offset && je16_to_cpu(node->magic) == KSAMTIB_CIGAM_2SFFJ) {
-			printk(KERN_WARNING "Magic bitmask is backwards at offset 0x%08x. Wrong endian filesystem?\n", ofs);
-			DIRTY_SPACE(4);
-			ofs += 4;
-			continue;
-		}
-		if (je16_to_cpu(node->magic) == JFFS2_DIRTY_BITMASK) {
-			D1(printk(KERN_DEBUG "Dirty bitmask at 0x%08x\n", ofs));
-			DIRTY_SPACE(4);
-			ofs += 4;
-			continue;
-		}
-		if (je16_to_cpu(node->magic) == JFFS2_OLD_MAGIC_BITMASK) {
-			printk(KERN_WARNING "Old JFFS2 bitmask found at 0x%08x\n", ofs);
-			printk(KERN_WARNING "You cannot use older JFFS2 filesystems with newer kernels\n");
-			DIRTY_SPACE(4);
-			ofs += 4;
-			continue;
-		}
-		if (je16_to_cpu(node->magic) != JFFS2_MAGIC_BITMASK) {
-			/* OK. We're out of possibilities. Whinge and move on */
-			noisy_printk(&noise, "jffs2_scan_eraseblock(): Magic bitmask 0x%04x not found at 0x%08x: 0x%04x instead\n", 
-				     JFFS2_MAGIC_BITMASK, ofs, 
-				     je16_to_cpu(node->magic));
-			DIRTY_SPACE(4);
-			ofs += 4;
-			continue;
-		}
-		/* We seem to have a node of sorts. Check the CRC */
-		crcnode.magic = node->magic;
-		crcnode.nodetype = cpu_to_je16( je16_to_cpu(node->nodetype) | JFFS2_NODE_ACCURATE);
-		crcnode.totlen = node->totlen;
-		hdr_crc = crc32(0, &crcnode, sizeof(crcnode)-4);
-
-		if (hdr_crc != je32_to_cpu(node->hdr_crc)) {
-			noisy_printk(&noise, "jffs2_scan_eraseblock(): Node at 0x%08x {0x%04x, 0x%04x, 0x%08x) has invalid CRC 0x%08x (calculated 0x%08x)\n",
-				     ofs, je16_to_cpu(node->magic),
-				     je16_to_cpu(node->nodetype), 
-				     je32_to_cpu(node->totlen),
-				     je32_to_cpu(node->hdr_crc),
-				     hdr_crc);
-			DIRTY_SPACE(4);
-			ofs += 4;
-			continue;
-		}
-
-		if (ofs + je32_to_cpu(node->totlen) > 
-		    jeb->offset + c->sector_size) {
-			/* Eep. Node goes over the end of the erase block. */
-			printk(KERN_WARNING "Node at 0x%08x with length 0x%08x would run over the end of the erase block\n",
-			       ofs, je32_to_cpu(node->totlen));
-			printk(KERN_WARNING "Perhaps the file system was created with the wrong erase size?\n");
-			DIRTY_SPACE(4);
-			ofs += 4;
-			continue;
-		}
-
-		if (!(je16_to_cpu(node->nodetype) & JFFS2_NODE_ACCURATE)) {
-			/* Wheee. This is an obsoleted node */
-			D2(printk(KERN_DEBUG "Node at 0x%08x is obsolete. Skipping\n", ofs));
-			DIRTY_SPACE(PAD(je32_to_cpu(node->totlen)));
-			ofs += PAD(je32_to_cpu(node->totlen));
-			continue;
-		}
-
-		switch(je16_to_cpu(node->nodetype)) {
-		case JFFS2_NODETYPE_INODE:
-			if (buf_ofs + buf_len < ofs + sizeof(struct jffs2_raw_inode)) {
-				buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
-				D1(printk(KERN_DEBUG "Fewer than %zd bytes (inode node) left to end of buf. Reading 0x%x at 0x%08x\n",
-					  sizeof(struct jffs2_raw_inode), buf_len, ofs));
-				err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
-				if (err)
-					return err;
-				buf_ofs = ofs;
-				node = (void *)buf;
-			}
-			err = jffs2_scan_inode_node(c, jeb, (void *)node, ofs);
-			if (err) return err;
-			ofs += PAD(je32_to_cpu(node->totlen));
-			break;
-			
-		case JFFS2_NODETYPE_DIRENT:
-			if (buf_ofs + buf_len < ofs + je32_to_cpu(node->totlen)) {
-				buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
-				D1(printk(KERN_DEBUG "Fewer than %d bytes (dirent node) left to end of buf. Reading 0x%x at 0x%08x\n",
-					  je32_to_cpu(node->totlen), buf_len, ofs));
-				err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
-				if (err)
-					return err;
-				buf_ofs = ofs;
-				node = (void *)buf;
-			}
-			err = jffs2_scan_dirent_node(c, jeb, (void *)node, ofs);
-			if (err) return err;
-			ofs += PAD(je32_to_cpu(node->totlen));
-			break;
-
-		case JFFS2_NODETYPE_CLEANMARKER:
-			D1(printk(KERN_DEBUG "CLEANMARKER node found at 0x%08x\n", ofs));
-			if (je32_to_cpu(node->totlen) != c->cleanmarker_size) {
-				printk(KERN_NOTICE "CLEANMARKER node found at 0x%08x has totlen 0x%x != normal 0x%x\n", 
-				       ofs, je32_to_cpu(node->totlen), c->cleanmarker_size);
-				DIRTY_SPACE(PAD(sizeof(struct jffs2_unknown_node)));
-				ofs += PAD(sizeof(struct jffs2_unknown_node));
-			} else if (jeb->first_node) {
-				printk(KERN_NOTICE "CLEANMARKER node found at 0x%08x, not first node in block (0x%08x)\n", ofs, jeb->offset);
-				DIRTY_SPACE(PAD(sizeof(struct jffs2_unknown_node)));
-				ofs += PAD(sizeof(struct jffs2_unknown_node));
-			} else {
-				struct jffs2_raw_node_ref *marker_ref = jffs2_alloc_raw_node_ref();
-				if (!marker_ref) {
-					printk(KERN_NOTICE "Failed to allocate node ref for clean marker\n");
-					return -ENOMEM;
-				}
-				marker_ref->next_in_ino = NULL;
-				marker_ref->next_phys = NULL;
-				marker_ref->flash_offset = ofs | REF_NORMAL;
-				marker_ref->__totlen = c->cleanmarker_size;
-				jeb->first_node = jeb->last_node = marker_ref;
-			     
-				USED_SPACE(PAD(c->cleanmarker_size));
-				ofs += PAD(c->cleanmarker_size);
-			}
-			break;
-
-		case JFFS2_NODETYPE_PADDING:
-			DIRTY_SPACE(PAD(je32_to_cpu(node->totlen)));
-			ofs += PAD(je32_to_cpu(node->totlen));
-			break;
-
-		default:
-			switch (je16_to_cpu(node->nodetype) & JFFS2_COMPAT_MASK) {
-			case JFFS2_FEATURE_ROCOMPAT:
-				printk(KERN_NOTICE "Read-only compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs);
-			        c->flags |= JFFS2_SB_FLAG_RO;
-				if (!(jffs2_is_readonly(c)))
-					return -EROFS;
-				DIRTY_SPACE(PAD(je32_to_cpu(node->totlen)));
-				ofs += PAD(je32_to_cpu(node->totlen));
-				break;
-
-			case JFFS2_FEATURE_INCOMPAT:
-				printk(KERN_NOTICE "Incompatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs);
-				return -EINVAL;
-
-			case JFFS2_FEATURE_RWCOMPAT_DELETE:
-				D1(printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs));
-				DIRTY_SPACE(PAD(je32_to_cpu(node->totlen)));
-				ofs += PAD(je32_to_cpu(node->totlen));
-				break;
-
-			case JFFS2_FEATURE_RWCOMPAT_COPY:
-				D1(printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs));
-				USED_SPACE(PAD(je32_to_cpu(node->totlen)));
-				ofs += PAD(je32_to_cpu(node->totlen));
-				break;
-			}
-		}
-	}
-
-
-	D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x\n", jeb->offset, 
-		  jeb->free_size, jeb->dirty_size, jeb->unchecked_size, jeb->used_size));
-
-	/* mark_node_obsolete can add to wasted !! */
-	if (jeb->wasted_size) {
-		jeb->dirty_size += jeb->wasted_size;
-		c->dirty_size += jeb->wasted_size;
-		c->wasted_size -= jeb->wasted_size;
-		jeb->wasted_size = 0;
-	}
-
-	if ((jeb->used_size + jeb->unchecked_size) == PAD(c->cleanmarker_size) && !jeb->dirty_size 
-		&& (!jeb->first_node || !jeb->first_node->next_phys) )
-		return BLK_STATE_CLEANMARKER;
-		
-	/* move blocks with max 4 byte dirty space to cleanlist */	
-	else if (!ISDIRTY(c->sector_size - (jeb->used_size + jeb->unchecked_size))) {
-		c->dirty_size -= jeb->dirty_size;
-		c->wasted_size += jeb->dirty_size; 
-		jeb->wasted_size += jeb->dirty_size;
-		jeb->dirty_size = 0;
-		return BLK_STATE_CLEAN;
-	} else if (jeb->used_size || jeb->unchecked_size)
-		return BLK_STATE_PARTDIRTY;
-	else
-		return BLK_STATE_ALLDIRTY;
-}
-
-static struct jffs2_inode_cache *jffs2_scan_make_ino_cache(struct jffs2_sb_info *c, uint32_t ino)
-{
-	struct jffs2_inode_cache *ic;
-
-	ic = jffs2_get_ino_cache(c, ino);
-	if (ic)
-		return ic;
-
-	if (ino > c->highest_ino)
-		c->highest_ino = ino;
-
-	ic = jffs2_alloc_inode_cache();
-	if (!ic) {
-		printk(KERN_NOTICE "jffs2_scan_make_inode_cache(): allocation of inode cache failed\n");
-		return NULL;
-	}
-	memset(ic, 0, sizeof(*ic));
-
-	ic->ino = ino;
-	ic->nodes = (void *)ic;
-	jffs2_add_ino_cache(c, ic);
-	if (ino == 1)
-		ic->nlink = 1;
-	return ic;
-}
-
-static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
-				 struct jffs2_raw_inode *ri, uint32_t ofs)
-{
-	struct jffs2_raw_node_ref *raw;
-	struct jffs2_inode_cache *ic;
-	uint32_t ino = je32_to_cpu(ri->ino);
-
-	D1(printk(KERN_DEBUG "jffs2_scan_inode_node(): Node at 0x%08x\n", ofs));
-
-	/* We do very little here now. Just check the ino# to which we should attribute
-	   this node; we can do all the CRC checking etc. later. There's a tradeoff here -- 
-	   we used to scan the flash once only, reading everything we want from it into
-	   memory, then building all our in-core data structures and freeing the extra
-	   information. Now we allow the first part of the mount to complete a lot quicker,
-	   but we have to go _back_ to the flash in order to finish the CRC checking, etc. 
-	   Which means that the _full_ amount of time to get to proper write mode with GC
-	   operational may actually be _longer_ than before. Sucks to be me. */
-
-	raw = jffs2_alloc_raw_node_ref();
-	if (!raw) {
-		printk(KERN_NOTICE "jffs2_scan_inode_node(): allocation of node reference failed\n");
-		return -ENOMEM;
-	}
-
-	ic = jffs2_get_ino_cache(c, ino);
-	if (!ic) {
-		/* Inocache get failed. Either we read a bogus ino# or it's just genuinely the
-		   first node we found for this inode. Do a CRC check to protect against the former
-		   case */
-		uint32_t crc = crc32(0, ri, sizeof(*ri)-8);
-
-		if (crc != je32_to_cpu(ri->node_crc)) {
-			printk(KERN_NOTICE "jffs2_scan_inode_node(): CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
-			       ofs, je32_to_cpu(ri->node_crc), crc);
-			/* We believe totlen because the CRC on the node _header_ was OK, just the node itself failed. */
-			DIRTY_SPACE(PAD(je32_to_cpu(ri->totlen)));
-			jffs2_free_raw_node_ref(raw);
-			return 0;
-		}
-		ic = jffs2_scan_make_ino_cache(c, ino);
-		if (!ic) {
-			jffs2_free_raw_node_ref(raw);
-			return -ENOMEM;
-		}
-	}
-
-	/* Wheee. It worked */
-
-	raw->flash_offset = ofs | REF_UNCHECKED;
-	raw->__totlen = PAD(je32_to_cpu(ri->totlen));
-	raw->next_phys = NULL;
-	raw->next_in_ino = ic->nodes;
-
-	ic->nodes = raw;
-	if (!jeb->first_node)
-		jeb->first_node = raw;
-	if (jeb->last_node)
-		jeb->last_node->next_phys = raw;
-	jeb->last_node = raw;
-
-	D1(printk(KERN_DEBUG "Node is ino #%u, version %d. Range 0x%x-0x%x\n", 
-		  je32_to_cpu(ri->ino), je32_to_cpu(ri->version),
-		  je32_to_cpu(ri->offset),
-		  je32_to_cpu(ri->offset)+je32_to_cpu(ri->dsize)));
-
-	pseudo_random += je32_to_cpu(ri->version);
-
-	UNCHECKED_SPACE(PAD(je32_to_cpu(ri->totlen)));
-	return 0;
-}
-
-static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
-				  struct jffs2_raw_dirent *rd, uint32_t ofs)
-{
-	struct jffs2_raw_node_ref *raw;
-	struct jffs2_full_dirent *fd;
-	struct jffs2_inode_cache *ic;
-	uint32_t crc;
-
-	D1(printk(KERN_DEBUG "jffs2_scan_dirent_node(): Node at 0x%08x\n", ofs));
-
-	/* We don't get here unless the node is still valid, so we don't have to
-	   mask in the ACCURATE bit any more. */
-	crc = crc32(0, rd, sizeof(*rd)-8);
-
-	if (crc != je32_to_cpu(rd->node_crc)) {
-		printk(KERN_NOTICE "jffs2_scan_dirent_node(): Node CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
-		       ofs, je32_to_cpu(rd->node_crc), crc);
-		/* We believe totlen because the CRC on the node _header_ was OK, just the node itself failed. */
-		DIRTY_SPACE(PAD(je32_to_cpu(rd->totlen)));
-		return 0;
-	}
-
-	pseudo_random += je32_to_cpu(rd->version);
-
-	fd = jffs2_alloc_full_dirent(rd->nsize+1);
-	if (!fd) {
-		return -ENOMEM;
-	}
-	memcpy(&fd->name, rd->name, rd->nsize);
-	fd->name[rd->nsize] = 0;
-
-	crc = crc32(0, fd->name, rd->nsize);
-	if (crc != je32_to_cpu(rd->name_crc)) {
-		printk(KERN_NOTICE "jffs2_scan_dirent_node(): Name CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
-		       ofs, je32_to_cpu(rd->name_crc), crc);	
-		D1(printk(KERN_NOTICE "Name for which CRC failed is (now) '%s', ino #%d\n", fd->name, je32_to_cpu(rd->ino)));
-		jffs2_free_full_dirent(fd);
-		/* FIXME: Why do we believe totlen? */
-		/* We believe totlen because the CRC on the node _header_ was OK, just the name failed. */
-		DIRTY_SPACE(PAD(je32_to_cpu(rd->totlen)));
-		return 0;
-	}
-	raw = jffs2_alloc_raw_node_ref();
-	if (!raw) {
-		jffs2_free_full_dirent(fd);
-		printk(KERN_NOTICE "jffs2_scan_dirent_node(): allocation of node reference failed\n");
-		return -ENOMEM;
-	}
-	ic = jffs2_scan_make_ino_cache(c, je32_to_cpu(rd->pino));
-	if (!ic) {
-		jffs2_free_full_dirent(fd);
-		jffs2_free_raw_node_ref(raw);
-		return -ENOMEM;
-	}
-	
-	raw->__totlen = PAD(je32_to_cpu(rd->totlen));
-	raw->flash_offset = ofs | REF_PRISTINE;
-	raw->next_phys = NULL;
-	raw->next_in_ino = ic->nodes;
-	ic->nodes = raw;
-	if (!jeb->first_node)
-		jeb->first_node = raw;
-	if (jeb->last_node)
-		jeb->last_node->next_phys = raw;
-	jeb->last_node = raw;
-
-	fd->raw = raw;
-	fd->next = NULL;
-	fd->version = je32_to_cpu(rd->version);
-	fd->ino = je32_to_cpu(rd->ino);
-	fd->nhash = full_name_hash(fd->name, rd->nsize);
-	fd->type = rd->type;
-	USED_SPACE(PAD(je32_to_cpu(rd->totlen)));
-	jffs2_add_fd_to_list(c, fd, &ic->scan_dents);
-
-	return 0;
-}
-
-static int count_list(struct list_head *l)
-{
-	uint32_t count = 0;
-	struct list_head *tmp;
-
-	list_for_each(tmp, l) {
-		count++;
-	}
-	return count;
-}
-
-/* Note: This breaks if list_empty(head). I don't care. You
-   might, if you copy this code and use it elsewhere :) */
-static void rotate_list(struct list_head *head, uint32_t count)
-{
-	struct list_head *n = head->next;
-
-	list_del(head);
-	while(count--) {
-		n = n->next;
-	}
-	list_add(head, n);
-}
-
-void jffs2_rotate_lists(struct jffs2_sb_info *c)
-{
-	uint32_t x;
-	uint32_t rotateby;
-
-	x = count_list(&c->clean_list);
-	if (x) {
-		rotateby = pseudo_random % x;
-		D1(printk(KERN_DEBUG "Rotating clean_list by %d\n", rotateby));
-
-		rotate_list((&c->clean_list), rotateby);
-
-		D1(printk(KERN_DEBUG "Erase block at front of clean_list is at %08x\n",
-			  list_entry(c->clean_list.next, struct jffs2_eraseblock, list)->offset));
-	} else {
-		D1(printk(KERN_DEBUG "Not rotating empty clean_list\n"));
-	}
-
-	x = count_list(&c->very_dirty_list);
-	if (x) {
-		rotateby = pseudo_random % x;
-		D1(printk(KERN_DEBUG "Rotating very_dirty_list by %d\n", rotateby));
-
-		rotate_list((&c->very_dirty_list), rotateby);
-
-		D1(printk(KERN_DEBUG "Erase block at front of very_dirty_list is at %08x\n",
-			  list_entry(c->very_dirty_list.next, struct jffs2_eraseblock, list)->offset));
-	} else {
-		D1(printk(KERN_DEBUG "Not rotating empty very_dirty_list\n"));
-	}
-
-	x = count_list(&c->dirty_list);
-	if (x) {
-		rotateby = pseudo_random % x;
-		D1(printk(KERN_DEBUG "Rotating dirty_list by %d\n", rotateby));
-
-		rotate_list((&c->dirty_list), rotateby);
-
-		D1(printk(KERN_DEBUG "Erase block at front of dirty_list is at %08x\n",
-			  list_entry(c->dirty_list.next, struct jffs2_eraseblock, list)->offset));
-	} else {
-		D1(printk(KERN_DEBUG "Not rotating empty dirty_list\n"));
-	}
-
-	x = count_list(&c->erasable_list);
-	if (x) {
-		rotateby = pseudo_random % x;
-		D1(printk(KERN_DEBUG "Rotating erasable_list by %d\n", rotateby));
-
-		rotate_list((&c->erasable_list), rotateby);
-
-		D1(printk(KERN_DEBUG "Erase block at front of erasable_list is at %08x\n",
-			  list_entry(c->erasable_list.next, struct jffs2_eraseblock, list)->offset));
-	} else {
-		D1(printk(KERN_DEBUG "Not rotating empty erasable_list\n"));
-	}
-
-	if (c->nr_erasing_blocks) {
-		rotateby = pseudo_random % c->nr_erasing_blocks;
-		D1(printk(KERN_DEBUG "Rotating erase_pending_list by %d\n", rotateby));
-
-		rotate_list((&c->erase_pending_list), rotateby);
-
-		D1(printk(KERN_DEBUG "Erase block at front of erase_pending_list is at %08x\n",
-			  list_entry(c->erase_pending_list.next, struct jffs2_eraseblock, list)->offset));
-	} else {
-		D1(printk(KERN_DEBUG "Not rotating empty erase_pending_list\n"));
-	}
-
-	if (c->nr_free_blocks) {
-		rotateby = pseudo_random % c->nr_free_blocks;
-		D1(printk(KERN_DEBUG "Rotating free_list by %d\n", rotateby));
-
-		rotate_list((&c->free_list), rotateby);
-
-		D1(printk(KERN_DEBUG "Erase block at front of free_list is at %08x\n",
-			  list_entry(c->free_list.next, struct jffs2_eraseblock, list)->offset));
-	} else {
-		D1(printk(KERN_DEBUG "Not rotating empty free_list\n"));
-	}
-}
diff --git a/components/dfs/filesystems/jffs2/src/write.c b/components/dfs/filesystems/jffs2/src/write.c
deleted file mode 100644
index dcfc3a49c1..0000000000
--- a/components/dfs/filesystems/jffs2/src/write.c
+++ /dev/null
@@ -1,702 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: write.c,v 1.94 2005/07/20 15:50:51 dedekind Exp $
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/crc32.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/mtd/mtd.h>
-#include "nodelist.h"
-#include "compr.h"
-
-
-int jffs2_do_new_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, uint32_t mode, struct jffs2_raw_inode *ri)
-{
-	struct jffs2_inode_cache *ic;
-
-	ic = jffs2_alloc_inode_cache();
-	if (!ic) {
-		return -ENOMEM;
-	}
-
-	memset(ic, 0, sizeof(*ic));
-
-	f->inocache = ic;
-	f->inocache->nlink = 1;
-	f->inocache->nodes = (struct jffs2_raw_node_ref *)f->inocache;
-	f->inocache->state = INO_STATE_PRESENT;
-
-
-	jffs2_add_ino_cache(c, f->inocache);
-	D1(printk(KERN_DEBUG "jffs2_do_new_inode(): Assigned ino# %d\n", f->inocache->ino));
-	ri->ino = cpu_to_je32(f->inocache->ino);
-
-	ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-	ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
-	ri->totlen = cpu_to_je32(PAD(sizeof(*ri)));
-	ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
-	ri->mode = cpu_to_jemode(mode);
-
-	f->highest_version = 1;
-	ri->version = cpu_to_je32(f->highest_version);
-
-	return 0;
-}
-
-/* jffs2_write_dnode - given a raw_inode, allocate a full_dnode for it, 
-   write it to the flash, link it into the existing inode/fragment list */
-
-struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const unsigned char *data, uint32_t datalen, uint32_t flash_ofs, int alloc_mode)
-
-{
-	struct jffs2_raw_node_ref *raw;
-	struct jffs2_full_dnode *fn;
-	size_t retlen;
-	struct kvec vecs[2];
-	int ret;
-	int retried = 0;
-	unsigned long cnt = 2;
-
-	D1(if(je32_to_cpu(ri->hdr_crc) != crc32(0, ri, sizeof(struct jffs2_unknown_node)-4)) {
-		printk(KERN_CRIT "Eep. CRC not correct in jffs2_write_dnode()\n");
-		BUG();
-	}
-	   );
-	vecs[0].iov_base = ri;
-	vecs[0].iov_len = sizeof(*ri);
-	vecs[1].iov_base = (unsigned char *)data;
-	vecs[1].iov_len = datalen;
-
-	jffs2_dbg_prewrite_paranoia_check(c, flash_ofs, vecs[0].iov_len + vecs[1].iov_len);
-
-	if (je32_to_cpu(ri->totlen) != sizeof(*ri) + datalen) {
-		printk(KERN_WARNING "jffs2_write_dnode: ri->totlen (0x%08x) != sizeof(*ri) (0x%08zx) + datalen (0x%08x)\n", je32_to_cpu(ri->totlen), sizeof(*ri), datalen);
-	}
-	raw = jffs2_alloc_raw_node_ref();
-	if (!raw)
-		return ERR_PTR(-ENOMEM);
-	
-	fn = jffs2_alloc_full_dnode();
-	if (!fn) {
-		jffs2_free_raw_node_ref(raw);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	fn->ofs = je32_to_cpu(ri->offset);
-	fn->size = je32_to_cpu(ri->dsize);
-	fn->frags = 0;
-
-	/* check number of valid vecs */
-	if (!datalen || !data)
-		cnt = 1;
- retry:
-	fn->raw = raw;
-
-	raw->flash_offset = flash_ofs;
-	raw->__totlen = PAD(sizeof(*ri)+datalen);
-	raw->next_phys = NULL;
-
-	if ((alloc_mode!=ALLOC_GC) && (je32_to_cpu(ri->version) < f->highest_version)) {
-		BUG_ON(!retried);
-		D1(printk(KERN_DEBUG "jffs2_write_dnode : dnode_version %d, "
-				"highest version %d -> updating dnode\n", 
-				je32_to_cpu(ri->version), f->highest_version));
-		ri->version = cpu_to_je32(++f->highest_version);
-		ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
-	}
-
-	ret = jffs2_flash_writev(c, vecs, cnt, flash_ofs, &retlen,
-				 (alloc_mode==ALLOC_GC)?0:f->inocache->ino);
-
-	if (ret || (retlen != sizeof(*ri) + datalen)) {
-		printk(KERN_NOTICE "Write of %zd bytes at 0x%08x failed. returned %d, retlen %zd\n", 
-		       sizeof(*ri)+datalen, flash_ofs, ret, retlen);
-
-		/* Mark the space as dirtied */
-		if (retlen) {
-			/* Doesn't belong to any inode */
-			raw->next_in_ino = NULL;
-
-			/* Don't change raw->size to match retlen. We may have 
-			   written the node header already, and only the data will
-			   seem corrupted, in which case the scan would skip over
-			   any node we write before the original intended end of 
-			   this node */
-			raw->flash_offset |= REF_OBSOLETE;
-			jffs2_add_physical_node_ref(c, raw);
-			jffs2_mark_node_obsolete(c, raw);
-		} else {
-			printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", raw->flash_offset);
-			jffs2_free_raw_node_ref(raw);
-		}
-		if (!retried && alloc_mode != ALLOC_NORETRY && (raw = jffs2_alloc_raw_node_ref())) {
-			/* Try to reallocate space and retry */
-			uint32_t dummy;
-			struct jffs2_eraseblock *jeb = &c->blocks[flash_ofs / c->sector_size];
-
-			retried = 1;
-
-			D1(printk(KERN_DEBUG "Retrying failed write.\n"));
-			
-			jffs2_dbg_acct_sanity_check(c,jeb);
-			jffs2_dbg_acct_paranoia_check(c, jeb);
-
-			if (alloc_mode == ALLOC_GC) {
-				ret = jffs2_reserve_space_gc(c, sizeof(*ri) + datalen, &flash_ofs, &dummy);
-			} else {
-				/* Locking pain */
-				up(&f->sem);
-				jffs2_complete_reservation(c);
-			
-				ret = jffs2_reserve_space(c, sizeof(*ri) + datalen, &flash_ofs, &dummy, alloc_mode);
-				down(&f->sem);
-			}
-
-			if (!ret) {
-				D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", flash_ofs));
-
-				jffs2_dbg_acct_sanity_check(c,jeb);
-				jffs2_dbg_acct_paranoia_check(c, jeb);
-
-				goto retry;
-			}
-			D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
-			jffs2_free_raw_node_ref(raw);
-		}
-		/* Release the full_dnode which is now useless, and return */
-		jffs2_free_full_dnode(fn);
-		return ERR_PTR(ret?ret:-EIO);
-	}
-	/* Mark the space used */
-	/* If node covers at least a whole page, or if it starts at the 
-	   beginning of a page and runs to the end of the file, or if 
-	   it's a hole node, mark it REF_PRISTINE, else REF_NORMAL. 
-	*/
-	if ((je32_to_cpu(ri->dsize) >= PAGE_CACHE_SIZE) ||
-	    ( ((je32_to_cpu(ri->offset)&(PAGE_CACHE_SIZE-1))==0) &&
-	      (je32_to_cpu(ri->dsize)+je32_to_cpu(ri->offset) ==  je32_to_cpu(ri->isize)))) {
-		raw->flash_offset |= REF_PRISTINE;
-	} else {
-		raw->flash_offset |= REF_NORMAL;
-	}
-	jffs2_add_physical_node_ref(c, raw);
-
-	/* Link into per-inode list */
-	spin_lock(&c->erase_completion_lock);
-	raw->next_in_ino = f->inocache->nodes;
-	f->inocache->nodes = raw;
-	spin_unlock(&c->erase_completion_lock);
-
-	D1(printk(KERN_DEBUG "jffs2_write_dnode wrote node at 0x%08x(%d) with dsize 0x%x, csize 0x%x, node_crc 0x%08x, data_crc 0x%08x, totlen 0x%08x\n",
-		  flash_ofs, ref_flags(raw), je32_to_cpu(ri->dsize), 
-		  je32_to_cpu(ri->csize), je32_to_cpu(ri->node_crc),
-		  je32_to_cpu(ri->data_crc), je32_to_cpu(ri->totlen)));
-
-	if (retried) {
-		jffs2_dbg_acct_sanity_check(c,NULL);
-	}
-
-	return fn;
-}
-
-struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_dirent *rd, const unsigned char *name, uint32_t namelen, uint32_t flash_ofs, int alloc_mode)
-{
-	struct jffs2_raw_node_ref *raw;
-	struct jffs2_full_dirent *fd;
-	size_t retlen;
-	struct kvec vecs[2];
-	int retried = 0;
-	int ret;
-
-	D1(printk(KERN_DEBUG "jffs2_write_dirent(ino #%u, name at *0x%p \"%s\"->ino #%u, name_crc 0x%08x)\n", 
-		  je32_to_cpu(rd->pino), name, name, je32_to_cpu(rd->ino),
-		  je32_to_cpu(rd->name_crc)));
-
-	D1(if(je32_to_cpu(rd->hdr_crc) != crc32(0, rd, sizeof(struct jffs2_unknown_node)-4)) {
-		printk(KERN_CRIT "Eep. CRC not correct in jffs2_write_dirent()\n");
-		BUG();
-	}
-	   );
-
-	vecs[0].iov_base = rd;
-	vecs[0].iov_len = sizeof(*rd);
-	vecs[1].iov_base = (unsigned char *)name;
-	vecs[1].iov_len = namelen;
-	
-	jffs2_dbg_prewrite_paranoia_check(c, flash_ofs, vecs[0].iov_len + vecs[1].iov_len);
-
-	raw = jffs2_alloc_raw_node_ref();
-
-	if (!raw)
-		return ERR_PTR(-ENOMEM);
-
-	fd = jffs2_alloc_full_dirent(namelen+1);
-	if (!fd) {
-		jffs2_free_raw_node_ref(raw);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	fd->version = je32_to_cpu(rd->version);
-	fd->ino = je32_to_cpu(rd->ino);
-	fd->nhash = full_name_hash(name, strlen((const char *)name));
-	fd->type = rd->type;
-	memcpy(fd->name, name, namelen);
-	fd->name[namelen]=0;
-
- retry:
-	fd->raw = raw;
-
-	raw->flash_offset = flash_ofs;
-	raw->__totlen = PAD(sizeof(*rd)+namelen);
-	raw->next_phys = NULL;
-
-	if ((alloc_mode!=ALLOC_GC) && (je32_to_cpu(rd->version) < f->highest_version)) {
-		BUG_ON(!retried);
-		D1(printk(KERN_DEBUG "jffs2_write_dirent : dirent_version %d, "
-				     "highest version %d -> updating dirent\n",
-				     je32_to_cpu(rd->version), f->highest_version));
-		rd->version = cpu_to_je32(++f->highest_version);
-		fd->version = je32_to_cpu(rd->version);
-		rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
-	}
-
-	ret = jffs2_flash_writev(c, vecs, 2, flash_ofs, &retlen,
-				 (alloc_mode==ALLOC_GC)?0:je32_to_cpu(rd->pino));
-	if (ret || (retlen != sizeof(*rd) + namelen)) {
-		printk(KERN_NOTICE "Write of %zd bytes at 0x%08x failed. returned %d, retlen %zd\n", 
-			       sizeof(*rd)+namelen, flash_ofs, ret, retlen);
-		/* Mark the space as dirtied */
-		if (retlen) {
-			raw->next_in_ino = NULL;
-			raw->flash_offset |= REF_OBSOLETE;
-			jffs2_add_physical_node_ref(c, raw);
-			jffs2_mark_node_obsolete(c, raw);
-		} else {
-			printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", raw->flash_offset);
-			jffs2_free_raw_node_ref(raw);
-		}
-		if (!retried && (raw = jffs2_alloc_raw_node_ref())) {
-			/* Try to reallocate space and retry */
-			uint32_t dummy;
-			struct jffs2_eraseblock *jeb = &c->blocks[flash_ofs / c->sector_size];
-
-			retried = 1;
-
-			D1(printk(KERN_DEBUG "Retrying failed write.\n"));
-
-			jffs2_dbg_acct_sanity_check(c,jeb);
-			jffs2_dbg_acct_paranoia_check(c, jeb);
-
-			if (alloc_mode == ALLOC_GC) {
-				ret = jffs2_reserve_space_gc(c, sizeof(*rd) + namelen, &flash_ofs, &dummy);
-			} else {
-				/* Locking pain */
-				up(&f->sem);
-				jffs2_complete_reservation(c);
-			
-				ret = jffs2_reserve_space(c, sizeof(*rd) + namelen, &flash_ofs, &dummy, alloc_mode);
-				down(&f->sem);
-			}
-
-			if (!ret) {
-				D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", flash_ofs));
-				jffs2_dbg_acct_sanity_check(c,jeb);
-				jffs2_dbg_acct_paranoia_check(c, jeb);
-				goto retry;
-			}
-			D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
-			jffs2_free_raw_node_ref(raw);
-		}
-		/* Release the full_dnode which is now useless, and return */
-		jffs2_free_full_dirent(fd);
-		return ERR_PTR(ret?ret:-EIO);
-	}
-	/* Mark the space used */
-	raw->flash_offset |= REF_PRISTINE;
-	jffs2_add_physical_node_ref(c, raw);
-
-	spin_lock(&c->erase_completion_lock);
-	raw->next_in_ino = f->inocache->nodes;
-	f->inocache->nodes = raw;
-	spin_unlock(&c->erase_completion_lock);
-
-	if (retried) {
-		jffs2_dbg_acct_sanity_check(c,NULL);
-	}
-
-	return fd;
-}
-
-/* The OS-specific code fills in the metadata in the jffs2_raw_inode for us, so that
-   we don't have to go digging in struct inode or its equivalent. It should set:
-   mode, uid, gid, (starting)isize, atime, ctime, mtime */
-int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-			    struct jffs2_raw_inode *ri, unsigned char *buf, 
-			    uint32_t offset, uint32_t writelen, uint32_t *retlen)
-{
-	int ret = 0;
-	uint32_t writtenlen = 0;
-
-       	D1(printk(KERN_DEBUG "jffs2_write_inode_range(): Ino #%u, ofs 0x%x, len 0x%x\n",
-		  f->inocache->ino, offset, writelen));
-		
-	while(writelen) {
-		struct jffs2_full_dnode *fn;
-		unsigned char *comprbuf = NULL;
-		uint16_t comprtype = JFFS2_COMPR_NONE;
-		uint32_t phys_ofs, alloclen;
-		uint32_t datalen, cdatalen;
-		int retried = 0;
-
-	retry:
-		D2(printk(KERN_DEBUG "jffs2_commit_write() loop: 0x%x to write to 0x%x\n", writelen, offset));
-
-		ret = jffs2_reserve_space(c, sizeof(*ri) + JFFS2_MIN_DATA_LEN, &phys_ofs, &alloclen, ALLOC_NORMAL);
-		if (ret) {
-			D1(printk(KERN_DEBUG "jffs2_reserve_space returned %d\n", ret));
-			break;
-		}
-		down(&f->sem);
-		datalen = min_t(uint32_t, writelen, PAGE_CACHE_SIZE - (offset & (PAGE_CACHE_SIZE-1)));
-		cdatalen = min_t(uint32_t, alloclen - sizeof(*ri), datalen);
-
-		comprtype = jffs2_compress(c, f, buf, &comprbuf, &datalen, &cdatalen);
-
-		ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-		ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
-		ri->totlen = cpu_to_je32(sizeof(*ri) + cdatalen);
-		ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
-
-		ri->ino = cpu_to_je32(f->inocache->ino);
-		ri->version = cpu_to_je32(++f->highest_version);
-		ri->isize = cpu_to_je32(max(je32_to_cpu(ri->isize), offset + datalen));
-		ri->offset = cpu_to_je32(offset);
-		ri->csize = cpu_to_je32(cdatalen);
-		ri->dsize = cpu_to_je32(datalen);
-		ri->compr = comprtype & 0xff;
-		ri->usercompr = (comprtype >> 8 ) & 0xff;
-		ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
-		ri->data_crc = cpu_to_je32(crc32(0, comprbuf, cdatalen));
-
-		fn = jffs2_write_dnode(c, f, ri, comprbuf, cdatalen, phys_ofs, ALLOC_NORETRY);
-
-		jffs2_free_comprbuf(comprbuf, buf);
-
-		if (IS_ERR(fn)) {
-			ret = PTR_ERR(fn);
-			up(&f->sem);
-			jffs2_complete_reservation(c);
-			if (!retried) {
-				/* Write error to be retried */
-				retried = 1;
-				D1(printk(KERN_DEBUG "Retrying node write in jffs2_write_inode_range()\n"));
-				goto retry;
-			}
-			break;
-		}
-		ret = jffs2_add_full_dnode_to_inode(c, f, fn);
-		if (f->metadata) {
-			jffs2_mark_node_obsolete(c, f->metadata->raw);
-			jffs2_free_full_dnode(f->metadata);
-			f->metadata = NULL;
-		}
-		if (ret) {
-			/* Eep */
-			D1(printk(KERN_DEBUG "Eep. add_full_dnode_to_inode() failed in commit_write, returned %d\n", ret));
-			jffs2_mark_node_obsolete(c, fn->raw);
-			jffs2_free_full_dnode(fn);
-
-			up(&f->sem);
-			jffs2_complete_reservation(c);
-			break;
-		}
-		up(&f->sem);
-		jffs2_complete_reservation(c);
-		if (!datalen) {
-			printk(KERN_WARNING "Eep. We didn't actually write any data in jffs2_write_inode_range()\n");
-			ret = -EIO;
-			break;
-		}
-		D1(printk(KERN_DEBUG "increasing writtenlen by %d\n", datalen));
-		writtenlen += datalen;
-		offset += datalen;
-		writelen -= datalen;
-		buf += datalen;
-	}
-	*retlen = writtenlen;
-	return ret;
-}
-
-int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const char *name, int namelen)
-{
-	struct jffs2_raw_dirent *rd;
-	struct jffs2_full_dnode *fn;
-	struct jffs2_full_dirent *fd;
-	uint32_t alloclen, phys_ofs;
-	int ret;
-
-	/* Try to reserve enough space for both node and dirent. 
-	 * Just the node will do for now, though 
-	 */
-	ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL);
-	D1(printk(KERN_DEBUG "jffs2_do_create(): reserved 0x%x bytes\n", alloclen));
-	if (ret) {
-		up(&f->sem);
-		return ret;
-	}
-
-	ri->data_crc = cpu_to_je32(0);
-	ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
-
-	fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
-
-	D1(printk(KERN_DEBUG "jffs2_do_create created file with mode 0x%x\n",
-		  jemode_to_cpu(ri->mode)));
-
-	if (IS_ERR(fn)) {
-		D1(printk(KERN_DEBUG "jffs2_write_dnode() failed\n"));
-		/* Eeek. Wave bye bye */
-		up(&f->sem);
-		jffs2_complete_reservation(c);
-		return PTR_ERR(fn);
-	}
-	/* No data here. Only a metadata node, which will be 
-	   obsoleted by the first data write
-	*/
-	f->metadata = fn;
-
-	up(&f->sem);
-	jffs2_complete_reservation(c);
-	ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
-		
-	if (ret) {
-		/* Eep. */
-		D1(printk(KERN_DEBUG "jffs2_reserve_space() for dirent failed\n"));
-		return ret;
-	}
-
-	rd = jffs2_alloc_raw_dirent();
-	if (!rd) {
-		/* Argh. Now we treat it like a normal delete */
-		jffs2_complete_reservation(c);
-		return -ENOMEM;
-	}
-
-	down(&dir_f->sem);
-
-	rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-	rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
-	rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
-	rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
-
-	rd->pino = cpu_to_je32(dir_f->inocache->ino);
-	rd->version = cpu_to_je32(++dir_f->highest_version);
-	rd->ino = ri->ino;
-	rd->mctime = ri->ctime;
-	rd->nsize = namelen;
-	rd->type = DT_REG;
-	rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
-	rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
-
-	fd = jffs2_write_dirent(c, dir_f, rd, (const unsigned char *)name, namelen, phys_ofs, ALLOC_NORMAL);
-
-	jffs2_free_raw_dirent(rd);
-	
-	if (IS_ERR(fd)) {
-		/* dirent failed to write. Delete the inode normally 
-		   as if it were the final unlink() */
-		jffs2_complete_reservation(c);
-		up(&dir_f->sem);
-		return PTR_ERR(fd);
-	}
-
-	/* Link the fd into the inode's list, obsoleting an old
-	   one if necessary. */
-	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
-
-	jffs2_complete_reservation(c);
-	up(&dir_f->sem);
-
-	return 0;
-}
-
-
-int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
-		    const char *name, int namelen, struct jffs2_inode_info *dead_f)
-{
-	struct jffs2_raw_dirent *rd;
-	struct jffs2_full_dirent *fd;
-	uint32_t alloclen, phys_ofs;
-	int ret;
-
-	if (1 /* alternative branch needs testing */ || 
-	    !jffs2_can_mark_obsolete(c)) {
-		/* We can't mark stuff obsolete on the medium. We need to write a deletion dirent */
-
-		rd = jffs2_alloc_raw_dirent();
-		if (!rd)
-			return -ENOMEM;
-
-		ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_DELETION);
-		if (ret) {
-			jffs2_free_raw_dirent(rd);
-			return ret;
-		}
-
-		down(&dir_f->sem);
-
-		/* Build a deletion node */
-		rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-		rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
-		rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
-		rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
-		
-		rd->pino = cpu_to_je32(dir_f->inocache->ino);
-		rd->version = cpu_to_je32(++dir_f->highest_version);
-		rd->ino = cpu_to_je32(0);
-		rd->mctime = cpu_to_je32(get_seconds());
-		rd->nsize = namelen;
-		rd->type = DT_UNKNOWN;
-		rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
-		rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
-
-		fd = jffs2_write_dirent(c, dir_f, rd, (const unsigned char *)name, namelen, phys_ofs, ALLOC_DELETION);
-		
-		jffs2_free_raw_dirent(rd);
-
-		if (IS_ERR(fd)) {
-			jffs2_complete_reservation(c);
-			up(&dir_f->sem);
-			return PTR_ERR(fd);
-		}
-
-		/* File it. This will mark the old one obsolete. */
-		jffs2_add_fd_to_list(c, fd, &dir_f->dents);
-		up(&dir_f->sem);
-	} else {
-		struct jffs2_full_dirent **prev = &dir_f->dents;
-		uint32_t nhash = full_name_hash((const unsigned char *)name, namelen);
-
-		down(&dir_f->sem);
-
-		while ((*prev) && (*prev)->nhash <= nhash) {
-			if ((*prev)->nhash == nhash && 
-			    !memcmp((*prev)->name, name, namelen) &&
-			    !(*prev)->name[namelen]) {
-				struct jffs2_full_dirent *this = *prev;
-
-				D1(printk(KERN_DEBUG "Marking old dirent node (ino #%u) @%08x obsolete\n",
-					  this->ino, ref_offset(this->raw)));
-
-				*prev = this->next;
-				jffs2_mark_node_obsolete(c, (this->raw));
-				jffs2_free_full_dirent(this);
-				break;
-			}
-			prev = &((*prev)->next);
-		}
-		up(&dir_f->sem);
-	}
-
-	/* dead_f is NULL if this was a rename not a real unlink */
-	/* Also catch the !f->inocache case, where there was a dirent
-	   pointing to an inode which didn't exist. */
-	if (dead_f && dead_f->inocache) { 
-
-		down(&dead_f->sem);
-
-		if (S_ISDIR(OFNI_EDONI_2SFFJ(dead_f)->i_mode)) {
-			while (dead_f->dents) {
-				/* There can be only deleted ones */
-				fd = dead_f->dents;
-				
-				dead_f->dents = fd->next;
-				
-				if (fd->ino) {
-					printk(KERN_WARNING "Deleting inode #%u with active dentry \"%s\"->ino #%u\n",
-					       dead_f->inocache->ino, fd->name, fd->ino);
-				} else {
-					D1(printk(KERN_DEBUG "Removing deletion dirent for \"%s\" from dir ino #%u\n",
-						fd->name, dead_f->inocache->ino));
-				}
-				jffs2_mark_node_obsolete(c, fd->raw);
-				jffs2_free_full_dirent(fd);
-			}
-		}
-
-		dead_f->inocache->nlink--;
-		/* NB: Caller must set inode nlink if appropriate */
-		up(&dead_f->sem);
-	}
-
-	jffs2_complete_reservation(c);
-
-	return 0;
-}
-
-
-int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint32_t ino, uint8_t type, const char *name, int namelen)
-{
-	struct jffs2_raw_dirent *rd;
-	struct jffs2_full_dirent *fd;
-	uint32_t alloclen, phys_ofs;
-	int ret;
-
-	rd = jffs2_alloc_raw_dirent();
-	if (!rd)
-		return -ENOMEM;
-
-	ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
-	if (ret) {
-		jffs2_free_raw_dirent(rd);
-		return ret;
-	}
-	
-	down(&dir_f->sem);
-
-	/* Build a deletion node */
-	rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
-	rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
-	rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
-	rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
-
-	rd->pino = cpu_to_je32(dir_f->inocache->ino);
-	rd->version = cpu_to_je32(++dir_f->highest_version);
-	rd->ino = cpu_to_je32(ino);
-	rd->mctime = cpu_to_je32(get_seconds());
-	rd->nsize = namelen;
-
-	rd->type = type;
-
-	rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
-	rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
-
-	fd = jffs2_write_dirent(c, dir_f, rd, (const unsigned char *)name, namelen, phys_ofs, ALLOC_NORMAL);
-	
-	jffs2_free_raw_dirent(rd);
-
-	if (IS_ERR(fd)) {
-		jffs2_complete_reservation(c);
-		up(&dir_f->sem);
-		return PTR_ERR(fd);
-	}
-
-	/* File it. This will mark the old one obsolete. */
-	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
-
-	jffs2_complete_reservation(c);
-	up(&dir_f->sem);
-
-	return 0;
-}
diff --git a/components/dfs/filesystems/nfs/dfs_nfs.c b/components/dfs/filesystems/nfs/dfs_nfs.c
index e60f6f98c0..e7ad488f7d 100644
--- a/components/dfs/filesystems/nfs/dfs_nfs.c
+++ b/components/dfs/filesystems/nfs/dfs_nfs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/nfs/dfs_nfs.h b/components/dfs/filesystems/nfs/dfs_nfs.h
index d607776ef1..460027410d 100644
--- a/components/dfs/filesystems/nfs/dfs_nfs.h
+++ b/components/dfs/filesystems/nfs/dfs_nfs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/nfs/mount.h b/components/dfs/filesystems/nfs/mount.h
index aac0fd6bed..ff0cec76fb 100644
--- a/components/dfs/filesystems/nfs/mount.h
+++ b/components/dfs/filesystems/nfs/mount.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -12,7 +12,7 @@
  */
 
 #ifndef _MOUNT_H_RPCGEN
-#define	_MOUNT_H_RPCGEN
+#define _MOUNT_H_RPCGEN
 
 #include <rpc/rpc.h>
 
@@ -23,13 +23,13 @@ extern "C" {
 /* This file is copied from RFC1813
  * Copyright 1995 Sun Micrososystems (I assume)
  */
-#define	MNTPATHLEN 1024
-#define	MNTNAMLEN 255
-#define	FHSIZE3 64
+#define MNTPATHLEN 1024
+#define MNTNAMLEN 255
+#define FHSIZE3 64
 
 typedef struct {
-	unsigned int fhandle3_len;
-	char *fhandle3_val;
+    unsigned int fhandle3_len;
+    char *fhandle3_val;
 } fhandle3;
 
 typedef char *dirpath;
@@ -43,70 +43,70 @@ typedef struct groupnode *groups;
 typedef struct mountbody *mountlist;
 
 enum mountstat3 {
-	MNT3_OK = 0,
-	MNT3ERR_PERM = 1,
-	MNT3ERR_NOENT = 2,
-	MNT3ERR_IO = 5,
-	MNT3ERR_ACCES = 13,
-	MNT3ERR_NOTDIR = 20,
-	MNT3ERR_INVAL = 22,
-	MNT3ERR_NAMETOOLONG = 63,
-	MNT3ERR_NOTSUPP = 10004,
-	MNT3ERR_SERVERFAULT = 10006
+    MNT3_OK = 0,
+    MNT3ERR_PERM = 1,
+    MNT3ERR_NOENT = 2,
+    MNT3ERR_IO = 5,
+    MNT3ERR_ACCES = 13,
+    MNT3ERR_NOTDIR = 20,
+    MNT3ERR_INVAL = 22,
+    MNT3ERR_NAMETOOLONG = 63,
+    MNT3ERR_NOTSUPP = 10004,
+    MNT3ERR_SERVERFAULT = 10006
 };
 typedef enum mountstat3 mountstat3;
 
 struct mountres3_ok {
-	fhandle3 fhandle;
-	struct {
-		unsigned int auth_flavors_len;
-		int *auth_flavors_val;
-	} auth_flavors;
+    fhandle3 fhandle;
+    struct {
+        unsigned int auth_flavors_len;
+        int *auth_flavors_val;
+    } auth_flavors;
 };
 typedef struct mountres3_ok mountres3_ok;
 
 struct mountres3 {
-	mountstat3 fhs_status;
-	union {
-		mountres3_ok mountinfo;
-	} mountres3_u;
+    mountstat3 fhs_status;
+    union {
+        mountres3_ok mountinfo;
+    } mountres3_u;
 };
 typedef struct mountres3 mountres3;
 
 struct mountbody {
-	name ml_hostname;
-	dirpath ml_directory;
-	mountlist ml_next;
+    name ml_hostname;
+    dirpath ml_directory;
+    mountlist ml_next;
 };
 typedef struct mountbody mountbody;
 
 struct groupnode {
-	name gr_name;
-	groups gr_next;
+    name gr_name;
+    groups gr_next;
 };
 typedef struct groupnode groupnode;
 
 struct exportnode {
-	dirpath ex_dir;
-	groups ex_groups;
-	exports ex_next;
+    dirpath ex_dir;
+    groups ex_groups;
+    exports ex_next;
 };
 typedef struct exportnode exportnode;
 
-#define	MOUNT_PROGRAM	100005
-#define	MOUNT_V3	3
+#define MOUNT_PROGRAM   100005
+#define MOUNT_V3    3
 
-#define	MOUNTPROC3_NULL	0
+#define MOUNTPROC3_NULL 0
 extern  enum clnt_stat mountproc3_null_3(void *, CLIENT *);
-#define	MOUNTPROC3_MNT	1
+#define MOUNTPROC3_MNT  1
 extern  enum clnt_stat mountproc3_mnt_3(dirpath , mountres3 *, CLIENT *);
-#define	MOUNTPROC3_DUMP	2
+#define MOUNTPROC3_DUMP 2
 extern  enum clnt_stat mountproc3_dump_3(mountlist *, CLIENT *);
-#define	MOUNTPROC3_UMNT	3
+#define MOUNTPROC3_UMNT 3
 extern  enum clnt_stat mountproc3_umnt_3(dirpath , void *, CLIENT *);
-#define	MOUNTPROC3_UMNTALL	4
+#define MOUNTPROC3_UMNTALL  4
 extern  enum clnt_stat mountproc3_umntall_3(void *, CLIENT *);
-#define	MOUNTPROC3_EXPORT	5
+#define MOUNTPROC3_EXPORT   5
 extern  enum clnt_stat mountproc3_export_3(exports *, CLIENT *);
 
 /* the xdr functions */
diff --git a/components/dfs/filesystems/nfs/mount_clnt.c b/components/dfs/filesystems/nfs/mount_clnt.c
index 5c65e75aa5..9e05f7ee61 100644
--- a/components/dfs/filesystems/nfs/mount_clnt.c
+++ b/components/dfs/filesystems/nfs/mount_clnt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -23,56 +23,56 @@ typedef char* caddr_t;
 /* Default timeout can be changed using clnt_control() */
 static struct timeval TIMEOUT = { 25, 0 };
 
-enum clnt_stat 
+enum clnt_stat
 mountproc3_null_3(void *clnt_res, CLIENT *clnt)
 {
-	 return (clnt_call(clnt, MOUNTPROC3_NULL,
-		(xdrproc_t) xdr_void, (caddr_t) NULL,
-		(xdrproc_t) xdr_void, (caddr_t) clnt_res,
-		TIMEOUT));
+     return (clnt_call(clnt, MOUNTPROC3_NULL,
+        (xdrproc_t) xdr_void, (caddr_t) NULL,
+        (xdrproc_t) xdr_void, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 mountproc3_mnt_3(dirpath arg1, mountres3 *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, MOUNTPROC3_MNT,
-		(xdrproc_t) xdr_dirpath, (caddr_t) &arg1,
-		(xdrproc_t) xdr_mountres3, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, MOUNTPROC3_MNT,
+        (xdrproc_t) xdr_dirpath, (caddr_t) &arg1,
+        (xdrproc_t) xdr_mountres3, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 mountproc3_dump_3(mountlist *clnt_res, CLIENT *clnt)
 {
-	 return (clnt_call(clnt, MOUNTPROC3_DUMP,
-		(xdrproc_t) xdr_void, (caddr_t) NULL,
-		(xdrproc_t) xdr_mountlist, (caddr_t) clnt_res,
-		TIMEOUT));
+     return (clnt_call(clnt, MOUNTPROC3_DUMP,
+        (xdrproc_t) xdr_void, (caddr_t) NULL,
+        (xdrproc_t) xdr_mountlist, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 mountproc3_umnt_3(dirpath arg1, void *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, MOUNTPROC3_UMNT,
-		(xdrproc_t) xdr_dirpath, (caddr_t) &arg1,
-		(xdrproc_t) xdr_void, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, MOUNTPROC3_UMNT,
+        (xdrproc_t) xdr_dirpath, (caddr_t) &arg1,
+        (xdrproc_t) xdr_void, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 mountproc3_umntall_3(void *clnt_res, CLIENT *clnt)
 {
-	 return (clnt_call(clnt, MOUNTPROC3_UMNTALL,
-		(xdrproc_t) xdr_void, (caddr_t) NULL,
-		(xdrproc_t) xdr_void, (caddr_t) clnt_res,
-		TIMEOUT));
+     return (clnt_call(clnt, MOUNTPROC3_UMNTALL,
+        (xdrproc_t) xdr_void, (caddr_t) NULL,
+        (xdrproc_t) xdr_void, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 mountproc3_export_3(exports *clnt_res, CLIENT *clnt)
 {
-	 return (clnt_call(clnt, MOUNTPROC3_EXPORT,
-		(xdrproc_t) xdr_void, (caddr_t) NULL,
-		(xdrproc_t) xdr_exports, (caddr_t) clnt_res,
-		TIMEOUT));
+     return (clnt_call(clnt, MOUNTPROC3_EXPORT,
+        (xdrproc_t) xdr_void, (caddr_t) NULL,
+        (xdrproc_t) xdr_exports, (caddr_t) clnt_res,
+        TIMEOUT));
 }
diff --git a/components/dfs/filesystems/nfs/mount_xdr.c b/components/dfs/filesystems/nfs/mount_xdr.c
index 04faa3bb7a..e1e797000f 100644
--- a/components/dfs/filesystems/nfs/mount_xdr.c
+++ b/components/dfs/filesystems/nfs/mount_xdr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -19,124 +19,124 @@
 bool_t
 xdr_fhandle3(register XDR *xdrs, fhandle3 *objp)
 {
-	if (!xdr_bytes(xdrs, (char **)&objp->fhandle3_val, (unsigned int *) &objp->fhandle3_len, FHSIZE3))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_bytes(xdrs, (char **)&objp->fhandle3_val, (unsigned int *) &objp->fhandle3_len, FHSIZE3))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_dirpath(register XDR *xdrs, dirpath *objp)
 {
-	if (!xdr_string(xdrs, objp, MNTPATHLEN))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_string(xdrs, objp, MNTPATHLEN))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_name(register XDR *xdrs, name *objp)
 {
-	if (!xdr_string(xdrs, objp, MNTNAMLEN))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_string(xdrs, objp, MNTNAMLEN))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_exports(register XDR *xdrs, exports *objp)
 {
-	if (!xdr_pointer(xdrs, (char **)objp, sizeof (struct exportnode), (xdrproc_t) xdr_exportnode))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_pointer(xdrs, (char **)objp, sizeof (struct exportnode), (xdrproc_t) xdr_exportnode))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_groups(register XDR *xdrs, groups *objp)
 {
-	if (!xdr_pointer(xdrs, (char **)objp, sizeof (struct groupnode), (xdrproc_t) xdr_groupnode))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_pointer(xdrs, (char **)objp, sizeof (struct groupnode), (xdrproc_t) xdr_groupnode))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_mountlist(register XDR *xdrs, mountlist *objp)
 {
-	if (!xdr_pointer(xdrs, (char **)objp, sizeof (struct mountbody), (xdrproc_t) xdr_mountbody))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_pointer(xdrs, (char **)objp, sizeof (struct mountbody), (xdrproc_t) xdr_mountbody))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_mountstat3(register XDR *xdrs, mountstat3 *objp)
 {
-	int enum_objp;
+    int enum_objp;
 
-	enum_objp = *objp;
+    enum_objp = *objp;
 
-	if (!xdr_enum(xdrs, (enum_t *)&enum_objp))
-	{
-		*objp = (mountstat3)enum_objp;
-		return (FALSE);
-	}
+    if (!xdr_enum(xdrs, (enum_t *)&enum_objp))
+    {
+        *objp = (mountstat3)enum_objp;
+        return (FALSE);
+    }
 
-	return (TRUE);
+    return (TRUE);
 }
 
 bool_t
 xdr_mountres3_ok(register XDR *xdrs, mountres3_ok *objp)
 {
-	if (!xdr_fhandle3(xdrs, &objp->fhandle))
-		return (FALSE);
-	if (!xdr_array(xdrs, (char **)&objp->auth_flavors.auth_flavors_val, (unsigned int *) &objp->auth_flavors.auth_flavors_len, ~0,
-		sizeof (int), (xdrproc_t) xdr_int))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_fhandle3(xdrs, &objp->fhandle))
+        return (FALSE);
+    if (!xdr_array(xdrs, (char **)&objp->auth_flavors.auth_flavors_val, (unsigned int *) &objp->auth_flavors.auth_flavors_len, ~0,
+        sizeof (int), (xdrproc_t) xdr_int))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_mountres3(register XDR *xdrs, mountres3 *objp)
 {
-	if (!xdr_mountstat3(xdrs, &objp->fhs_status))
-		return (FALSE);
-	switch (objp->fhs_status) {
-	case MNT3_OK:
-		if (!xdr_mountres3_ok(xdrs, &objp->mountres3_u.mountinfo))
-			return (FALSE);
-		break;
-	default :
-		return (FALSE);
-	}
-	return (TRUE);
+    if (!xdr_mountstat3(xdrs, &objp->fhs_status))
+        return (FALSE);
+    switch (objp->fhs_status) {
+    case MNT3_OK:
+        if (!xdr_mountres3_ok(xdrs, &objp->mountres3_u.mountinfo))
+            return (FALSE);
+        break;
+    default :
+        return (FALSE);
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_mountbody(register XDR *xdrs, mountbody *objp)
 {
-	if (!xdr_name(xdrs, &objp->ml_hostname))
-		return (FALSE);
-	if (!xdr_dirpath(xdrs, &objp->ml_directory))
-		return (FALSE);
-	if (!xdr_mountlist(xdrs, &objp->ml_next))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_name(xdrs, &objp->ml_hostname))
+        return (FALSE);
+    if (!xdr_dirpath(xdrs, &objp->ml_directory))
+        return (FALSE);
+    if (!xdr_mountlist(xdrs, &objp->ml_next))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_groupnode(register XDR *xdrs, groupnode *objp)
 {
-	if (!xdr_name(xdrs, &objp->gr_name))
-		return (FALSE);
-	if (!xdr_groups(xdrs, &objp->gr_next))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_name(xdrs, &objp->gr_name))
+        return (FALSE);
+    if (!xdr_groups(xdrs, &objp->gr_next))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_exportnode(register XDR *xdrs, exportnode *objp)
 {
-	if (!xdr_dirpath(xdrs, &objp->ex_dir))
-		return (FALSE);
-	if (!xdr_groups(xdrs, &objp->ex_groups))
-		return (FALSE);
-	if (!xdr_exports(xdrs, &objp->ex_next))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_dirpath(xdrs, &objp->ex_dir))
+        return (FALSE);
+    if (!xdr_groups(xdrs, &objp->ex_groups))
+        return (FALSE);
+    if (!xdr_exports(xdrs, &objp->ex_next))
+        return (FALSE);
+    return (TRUE);
 }
diff --git a/components/dfs/filesystems/nfs/nfs.h b/components/dfs/filesystems/nfs/nfs.h
index 34054b0084..8c417ec7f4 100644
--- a/components/dfs/filesystems/nfs/nfs.h
+++ b/components/dfs/filesystems/nfs/nfs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -12,7 +12,7 @@
  */
 
 #ifndef _NFS_H_RPCGEN
-#define	_NFS_H_RPCGEN
+#define _NFS_H_RPCGEN
 
 #include <rpc/rpc.h>
 
@@ -23,20 +23,20 @@ extern "C" {
 /* This file is copied from RFC1813
  * Copyright 1995 Sun Micrososystems (I assume)
  */
-#define	NFS3_FHSIZE 64
-#define	NFS3_COOKIEVERFSIZE 8
-#define	NFS3_CREATEVERFSIZE 8
-#define	NFS3_WRITEVERFSIZE 8
-#define	ACCESS3_READ 0x0001
-#define	ACCESS3_LOOKUP 0x0002
-#define	ACCESS3_MODIFY 0x0004
-#define	ACCESS3_EXTEND 0x0008
-#define	ACCESS3_DELETE 0x0010
-#define	ACCESS3_EXECUTE 0x0020
-#define	FSF3_LINK 0x0001
-#define	FSF3_SYMLINK 0x0002
-#define	FSF3_HOMOGENEOUS 0x0008
-#define	FSF3_CANSETTIME 0x0010
+#define NFS3_FHSIZE 64
+#define NFS3_COOKIEVERFSIZE 8
+#define NFS3_CREATEVERFSIZE 8
+#define NFS3_WRITEVERFSIZE 8
+#define ACCESS3_READ 0x0001
+#define ACCESS3_LOOKUP 0x0002
+#define ACCESS3_MODIFY 0x0004
+#define ACCESS3_EXTEND 0x0008
+#define ACCESS3_DELETE 0x0010
+#define ACCESS3_EXECUTE 0x0020
+#define FSF3_LINK 0x0001
+#define FSF3_SYMLINK 0x0002
+#define FSF3_HOMOGENEOUS 0x0008
+#define FSF3_CANSETTIME 0x0010
 
 typedef unsigned long long uint64;
 
@@ -73,900 +73,900 @@ typedef uint32 mode3;
 typedef uint32 count3;
 
 enum nfsstat3 {
-	NFS3_OK = 0,
-	NFS3ERR_PERM = 1,
-	NFS3ERR_NOENT = 2,
-	NFS3ERR_IO = 5,
-	NFS3ERR_NXIO = 6,
-	NFS3ERR_ACCES = 13,
-	NFS3ERR_EXIST = 17,
-	NFS3ERR_XDEV = 18,
-	NFS3ERR_NODEV = 19,
-	NFS3ERR_NOTDIR = 20,
-	NFS3ERR_ISDIR = 21,
-	NFS3ERR_INVAL = 22,
-	NFS3ERR_FBIG = 27,
-	NFS3ERR_NOSPC = 28,
-	NFS3ERR_ROFS = 30,
-	NFS3ERR_MLINK = 31,
-	NFS3ERR_NAMETOOLONG = 63,
-	NFS3ERR_NOTEMPTY = 66,
-	NFS3ERR_DQUOT = 69,
-	NFS3ERR_STALE = 70,
-	NFS3ERR_REMOTE = 71,
-	NFS3ERR_BADHANDLE = 10001,
-	NFS3ERR_NOT_SYNC = 10002,
-	NFS3ERR_BAD_COOKIE = 10003,
-	NFS3ERR_NOTSUPP = 10004,
-	NFS3ERR_TOOSMALL = 10005,
-	NFS3ERR_SERVERFAULT = 10006,
-	NFS3ERR_BADTYPE = 10007,
-	NFS3ERR_JUKEBOX = 10008
+    NFS3_OK = 0,
+    NFS3ERR_PERM = 1,
+    NFS3ERR_NOENT = 2,
+    NFS3ERR_IO = 5,
+    NFS3ERR_NXIO = 6,
+    NFS3ERR_ACCES = 13,
+    NFS3ERR_EXIST = 17,
+    NFS3ERR_XDEV = 18,
+    NFS3ERR_NODEV = 19,
+    NFS3ERR_NOTDIR = 20,
+    NFS3ERR_ISDIR = 21,
+    NFS3ERR_INVAL = 22,
+    NFS3ERR_FBIG = 27,
+    NFS3ERR_NOSPC = 28,
+    NFS3ERR_ROFS = 30,
+    NFS3ERR_MLINK = 31,
+    NFS3ERR_NAMETOOLONG = 63,
+    NFS3ERR_NOTEMPTY = 66,
+    NFS3ERR_DQUOT = 69,
+    NFS3ERR_STALE = 70,
+    NFS3ERR_REMOTE = 71,
+    NFS3ERR_BADHANDLE = 10001,
+    NFS3ERR_NOT_SYNC = 10002,
+    NFS3ERR_BAD_COOKIE = 10003,
+    NFS3ERR_NOTSUPP = 10004,
+    NFS3ERR_TOOSMALL = 10005,
+    NFS3ERR_SERVERFAULT = 10006,
+    NFS3ERR_BADTYPE = 10007,
+    NFS3ERR_JUKEBOX = 10008
 };
 typedef enum nfsstat3 nfsstat3;
 
 enum ftype3 {
-	NFS3REG = 1,
-	NFS3DIR = 2,
-	NFS3BLK = 3,
-	NFS3CHR = 4,
-	NFS3LNK = 5,
-	NFS3SOCK = 6,
-	NFS3FIFO = 7
+    NFS3REG = 1,
+    NFS3DIR = 2,
+    NFS3BLK = 3,
+    NFS3CHR = 4,
+    NFS3LNK = 5,
+    NFS3SOCK = 6,
+    NFS3FIFO = 7
 };
 typedef enum ftype3 ftype3;
 
 enum stable_how {
-	UNSTABLE = 0,
-	DATA_SYNC = 1,
-	FILE_SYNC = 2
+    UNSTABLE = 0,
+    DATA_SYNC = 1,
+    FILE_SYNC = 2
 };
 typedef enum stable_how stable_how;
 
 enum createmode3 {
-	UNCHECKED = 0,
-	GUARDED = 1,
-	EXCLUSIVE = 2
+    UNCHECKED = 0,
+    GUARDED = 1,
+    EXCLUSIVE = 2
 };
 typedef enum createmode3 createmode3;
 
 struct specdata3 {
-	uint32 specdata1;
-	uint32 specdata2;
+    uint32 specdata1;
+    uint32 specdata2;
 };
 typedef struct specdata3 specdata3;
 
 struct nfs_fh3 {
-	struct {
-		unsigned int data_len;
-		char *data_val;
-	} data;
+    struct {
+        unsigned int data_len;
+        char *data_val;
+    } data;
 };
 typedef struct nfs_fh3 nfs_fh3;
 
 struct nfstime3 {
-	uint32 seconds;
-	uint32 nseconds;
+    uint32 seconds;
+    uint32 nseconds;
 };
 typedef struct nfstime3 nfstime3;
 
 struct fattr3 {
-	ftype3 type;
-	mode3 mode;
-	uint32 nlink;
-	uid3 uid;
-	gid3 gid;
-	size3 size;
-	size3 used;
-	specdata3 rdev;
-	uint64 fsid;
-	fileid3 fileid;
-	nfstime3 atime;
-	nfstime3 mtime;
-	nfstime3 ctime;
+    ftype3 type;
+    mode3 mode;
+    uint32 nlink;
+    uid3 uid;
+    gid3 gid;
+    size3 size;
+    size3 used;
+    specdata3 rdev;
+    uint64 fsid;
+    fileid3 fileid;
+    nfstime3 atime;
+    nfstime3 mtime;
+    nfstime3 ctime;
 };
 typedef struct fattr3 fattr3;
 
 struct post_op_attr {
-	bool_t attributes_follow;
-	union {
-		fattr3 attributes;
-	} post_op_attr_u;
+    bool_t attributes_follow;
+    union {
+        fattr3 attributes;
+    } post_op_attr_u;
 };
 typedef struct post_op_attr post_op_attr;
 
 struct wcc_attr {
-	size3 size;
-	nfstime3 mtime;
-	nfstime3 ctime;
+    size3 size;
+    nfstime3 mtime;
+    nfstime3 ctime;
 };
 typedef struct wcc_attr wcc_attr;
 
 struct pre_op_attr {
-	bool_t attributes_follow;
-	union {
-		wcc_attr attributes;
-	} pre_op_attr_u;
+    bool_t attributes_follow;
+    union {
+        wcc_attr attributes;
+    } pre_op_attr_u;
 };
 typedef struct pre_op_attr pre_op_attr;
 
 struct wcc_data {
-	pre_op_attr before;
-	post_op_attr after;
+    pre_op_attr before;
+    post_op_attr after;
 };
 typedef struct wcc_data wcc_data;
 
 struct post_op_fh3 {
-	bool_t handle_follows;
-	union {
-		nfs_fh3 handle;
-	} post_op_fh3_u;
+    bool_t handle_follows;
+    union {
+        nfs_fh3 handle;
+    } post_op_fh3_u;
 };
 typedef struct post_op_fh3 post_op_fh3;
 
 enum time_how {
-	DONT_CHANGE = 0,
-	SET_TO_SERVER_TIME = 1,
-	SET_TO_CLIENT_TIME = 2
+    DONT_CHANGE = 0,
+    SET_TO_SERVER_TIME = 1,
+    SET_TO_CLIENT_TIME = 2
 };
 typedef enum time_how time_how;
 
 struct set_mode3 {
-	bool_t set_it;
-	union {
-		mode3 mode;
-	} set_mode3_u;
+    bool_t set_it;
+    union {
+        mode3 mode;
+    } set_mode3_u;
 };
 typedef struct set_mode3 set_mode3;
 
 struct set_uid3 {
-	bool_t set_it;
-	union {
-		uid3 uid;
-	} set_uid3_u;
+    bool_t set_it;
+    union {
+        uid3 uid;
+    } set_uid3_u;
 };
 typedef struct set_uid3 set_uid3;
 
 struct set_gid3 {
-	bool_t set_it;
-	union {
-		gid3 gid;
-	} set_gid3_u;
+    bool_t set_it;
+    union {
+        gid3 gid;
+    } set_gid3_u;
 };
 typedef struct set_gid3 set_gid3;
 
 struct set_size3 {
-	bool_t set_it;
-	union {
-		size3 size;
-	} set_size3_u;
+    bool_t set_it;
+    union {
+        size3 size;
+    } set_size3_u;
 };
 typedef struct set_size3 set_size3;
 
 struct set_atime {
-	time_how set_it;
-	union {
-		nfstime3 atime;
-	} set_atime_u;
+    time_how set_it;
+    union {
+        nfstime3 atime;
+    } set_atime_u;
 };
 typedef struct set_atime set_atime;
 
 struct set_mtime {
-	time_how set_it;
-	union {
-		nfstime3 mtime;
-	} set_mtime_u;
+    time_how set_it;
+    union {
+        nfstime3 mtime;
+    } set_mtime_u;
 };
 typedef struct set_mtime set_mtime;
 
 struct sattr3 {
-	set_mode3 mode;
-	set_uid3 uid;
-	set_gid3 gid;
-	set_size3 size;
-	set_atime atime;
-	set_mtime mtime;
+    set_mode3 mode;
+    set_uid3 uid;
+    set_gid3 gid;
+    set_size3 size;
+    set_atime atime;
+    set_mtime mtime;
 };
 typedef struct sattr3 sattr3;
 
 struct diropargs3 {
-	nfs_fh3 dir;
-	filename3 name;
+    nfs_fh3 dir;
+    filename3 name;
 };
 typedef struct diropargs3 diropargs3;
 
 struct GETATTR3args {
-	nfs_fh3 object;
+    nfs_fh3 object;
 };
 typedef struct GETATTR3args GETATTR3args;
 
 struct GETATTR3resok {
-	fattr3 obj_attributes;
+    fattr3 obj_attributes;
 };
 typedef struct GETATTR3resok GETATTR3resok;
 
 struct GETATTR3res {
-	nfsstat3 status;
-	union {
-		GETATTR3resok resok;
-	} GETATTR3res_u;
+    nfsstat3 status;
+    union {
+        GETATTR3resok resok;
+    } GETATTR3res_u;
 };
 typedef struct GETATTR3res GETATTR3res;
 
 struct sattrguard3 {
-	bool_t check;
-	union {
-		nfstime3 obj_ctime;
-	} sattrguard3_u;
+    bool_t check;
+    union {
+        nfstime3 obj_ctime;
+    } sattrguard3_u;
 };
 typedef struct sattrguard3 sattrguard3;
 
 struct SETATTR3args {
-	nfs_fh3 object;
-	sattr3 new_attributes;
-	sattrguard3 guard;
+    nfs_fh3 object;
+    sattr3 new_attributes;
+    sattrguard3 guard;
 };
 typedef struct SETATTR3args SETATTR3args;
 
 struct SETATTR3resok {
-	wcc_data obj_wcc;
+    wcc_data obj_wcc;
 };
 typedef struct SETATTR3resok SETATTR3resok;
 
 struct SETATTR3resfail {
-	wcc_data obj_wcc;
+    wcc_data obj_wcc;
 };
 typedef struct SETATTR3resfail SETATTR3resfail;
 
 struct SETATTR3res {
-	nfsstat3 status;
-	union {
-		SETATTR3resok resok;
-		SETATTR3resfail resfail;
-	} SETATTR3res_u;
+    nfsstat3 status;
+    union {
+        SETATTR3resok resok;
+        SETATTR3resfail resfail;
+    } SETATTR3res_u;
 };
 typedef struct SETATTR3res SETATTR3res;
 
 struct LOOKUP3args {
-	diropargs3 what;
+    diropargs3 what;
 };
 typedef struct LOOKUP3args LOOKUP3args;
 
 struct LOOKUP3resok {
-	nfs_fh3 object;
-	post_op_attr obj_attributes;
-	post_op_attr dir_attributes;
+    nfs_fh3 object;
+    post_op_attr obj_attributes;
+    post_op_attr dir_attributes;
 };
 typedef struct LOOKUP3resok LOOKUP3resok;
 
 struct LOOKUP3resfail {
-	post_op_attr dir_attributes;
+    post_op_attr dir_attributes;
 };
 typedef struct LOOKUP3resfail LOOKUP3resfail;
 
 struct LOOKUP3res {
-	nfsstat3 status;
-	union {
-		LOOKUP3resok resok;
-		LOOKUP3resfail resfail;
-	} LOOKUP3res_u;
+    nfsstat3 status;
+    union {
+        LOOKUP3resok resok;
+        LOOKUP3resfail resfail;
+    } LOOKUP3res_u;
 };
 typedef struct LOOKUP3res LOOKUP3res;
 
 struct ACCESS3args {
-	nfs_fh3 object;
-	uint32 access;
+    nfs_fh3 object;
+    uint32 access;
 };
 typedef struct ACCESS3args ACCESS3args;
 
 struct ACCESS3resok {
-	post_op_attr obj_attributes;
-	uint32 access;
+    post_op_attr obj_attributes;
+    uint32 access;
 };
 typedef struct ACCESS3resok ACCESS3resok;
 
 struct ACCESS3resfail {
-	post_op_attr obj_attributes;
+    post_op_attr obj_attributes;
 };
 typedef struct ACCESS3resfail ACCESS3resfail;
 
 struct ACCESS3res {
-	nfsstat3 status;
-	union {
-		ACCESS3resok resok;
-		ACCESS3resfail resfail;
-	} ACCESS3res_u;
+    nfsstat3 status;
+    union {
+        ACCESS3resok resok;
+        ACCESS3resfail resfail;
+    } ACCESS3res_u;
 };
 typedef struct ACCESS3res ACCESS3res;
 
 struct READLINK3args {
-	nfs_fh3 symlink;
+    nfs_fh3 symlink;
 };
 typedef struct READLINK3args READLINK3args;
 
 struct READLINK3resok {
-	post_op_attr symlink_attributes;
-	nfspath3 data;
+    post_op_attr symlink_attributes;
+    nfspath3 data;
 };
 typedef struct READLINK3resok READLINK3resok;
 
 struct READLINK3resfail {
-	post_op_attr symlink_attributes;
+    post_op_attr symlink_attributes;
 };
 typedef struct READLINK3resfail READLINK3resfail;
 
 struct READLINK3res {
-	nfsstat3 status;
-	union {
-		READLINK3resok resok;
-		READLINK3resfail resfail;
-	} READLINK3res_u;
+    nfsstat3 status;
+    union {
+        READLINK3resok resok;
+        READLINK3resfail resfail;
+    } READLINK3res_u;
 };
 typedef struct READLINK3res READLINK3res;
 
 struct READ3args {
-	nfs_fh3 file;
-	offset3 offset;
-	count3 count;
+    nfs_fh3 file;
+    offset3 offset;
+    count3 count;
 };
 typedef struct READ3args READ3args;
 
 struct READ3resok {
-	post_op_attr file_attributes;
-	count3 count;
-	bool_t eof;
-	struct {
-		unsigned int data_len;
-		char *data_val;
-	} data;
+    post_op_attr file_attributes;
+    count3 count;
+    bool_t eof;
+    struct {
+        unsigned int data_len;
+        char *data_val;
+    } data;
 };
 typedef struct READ3resok READ3resok;
 
 struct READ3resfail {
-	post_op_attr file_attributes;
+    post_op_attr file_attributes;
 };
 typedef struct READ3resfail READ3resfail;
 
 struct READ3res {
-	nfsstat3 status;
-	union {
-		READ3resok resok;
-		READ3resfail resfail;
-	} READ3res_u;
+    nfsstat3 status;
+    union {
+        READ3resok resok;
+        READ3resfail resfail;
+    } READ3res_u;
 };
 typedef struct READ3res READ3res;
 
 struct WRITE3args {
-	nfs_fh3 file;
-	offset3 offset;
-	count3 count;
-	stable_how stable;
-	struct {
-		unsigned int data_len;
-		char *data_val;
-	} data;
+    nfs_fh3 file;
+    offset3 offset;
+    count3 count;
+    stable_how stable;
+    struct {
+        unsigned int data_len;
+        char *data_val;
+    } data;
 };
 typedef struct WRITE3args WRITE3args;
 
 struct WRITE3resok {
-	wcc_data file_wcc;
-	count3 count;
-	stable_how committed;
-	writeverf3 verf;
+    wcc_data file_wcc;
+    count3 count;
+    stable_how committed;
+    writeverf3 verf;
 };
 typedef struct WRITE3resok WRITE3resok;
 
 struct WRITE3resfail {
-	wcc_data file_wcc;
+    wcc_data file_wcc;
 };
 typedef struct WRITE3resfail WRITE3resfail;
 
 struct WRITE3res {
-	nfsstat3 status;
-	union {
-		WRITE3resok resok;
-		WRITE3resfail resfail;
-	} WRITE3res_u;
+    nfsstat3 status;
+    union {
+        WRITE3resok resok;
+        WRITE3resfail resfail;
+    } WRITE3res_u;
 };
 typedef struct WRITE3res WRITE3res;
 
 struct createhow3 {
-	createmode3 mode;
-	union {
-		sattr3 obj_attributes;
-		createverf3 verf;
-	} createhow3_u;
+    createmode3 mode;
+    union {
+        sattr3 obj_attributes;
+        createverf3 verf;
+    } createhow3_u;
 };
 typedef struct createhow3 createhow3;
 
 struct CREATE3args {
-	diropargs3 where;
-	createhow3 how;
+    diropargs3 where;
+    createhow3 how;
 };
 typedef struct CREATE3args CREATE3args;
 
 struct CREATE3resok {
-	post_op_fh3 obj;
-	post_op_attr obj_attributes;
-	wcc_data dir_wcc;
+    post_op_fh3 obj;
+    post_op_attr obj_attributes;
+    wcc_data dir_wcc;
 };
 typedef struct CREATE3resok CREATE3resok;
 
 struct CREATE3resfail {
-	wcc_data dir_wcc;
+    wcc_data dir_wcc;
 };
 typedef struct CREATE3resfail CREATE3resfail;
 
 struct CREATE3res {
-	nfsstat3 status;
-	union {
-		CREATE3resok resok;
-		CREATE3resfail resfail;
-	} CREATE3res_u;
+    nfsstat3 status;
+    union {
+        CREATE3resok resok;
+        CREATE3resfail resfail;
+    } CREATE3res_u;
 };
 typedef struct CREATE3res CREATE3res;
 
 struct MKDIR3args {
-	diropargs3 where;
-	sattr3 attributes;
+    diropargs3 where;
+    sattr3 attributes;
 };
 typedef struct MKDIR3args MKDIR3args;
 
 struct MKDIR3resok {
-	post_op_fh3 obj;
-	post_op_attr obj_attributes;
-	wcc_data dir_wcc;
+    post_op_fh3 obj;
+    post_op_attr obj_attributes;
+    wcc_data dir_wcc;
 };
 typedef struct MKDIR3resok MKDIR3resok;
 
 struct MKDIR3resfail {
-	wcc_data dir_wcc;
+    wcc_data dir_wcc;
 };
 typedef struct MKDIR3resfail MKDIR3resfail;
 
 struct MKDIR3res {
-	nfsstat3 status;
-	union {
-		MKDIR3resok resok;
-		MKDIR3resfail resfail;
-	} MKDIR3res_u;
+    nfsstat3 status;
+    union {
+        MKDIR3resok resok;
+        MKDIR3resfail resfail;
+    } MKDIR3res_u;
 };
 typedef struct MKDIR3res MKDIR3res;
 
 struct symlinkdata3 {
-	sattr3 symlink_attributes;
-	nfspath3 symlink_data;
+    sattr3 symlink_attributes;
+    nfspath3 symlink_data;
 };
 typedef struct symlinkdata3 symlinkdata3;
 
 struct SYMLINK3args {
-	diropargs3 where;
-	symlinkdata3 symlink;
+    diropargs3 where;
+    symlinkdata3 symlink;
 };
 typedef struct SYMLINK3args SYMLINK3args;
 
 struct SYMLINK3resok {
-	post_op_fh3 obj;
-	post_op_attr obj_attributes;
-	wcc_data dir_wcc;
+    post_op_fh3 obj;
+    post_op_attr obj_attributes;
+    wcc_data dir_wcc;
 };
 typedef struct SYMLINK3resok SYMLINK3resok;
 
 struct SYMLINK3resfail {
-	wcc_data dir_wcc;
+    wcc_data dir_wcc;
 };
 typedef struct SYMLINK3resfail SYMLINK3resfail;
 
 struct SYMLINK3res {
-	nfsstat3 status;
-	union {
-		SYMLINK3resok resok;
-		SYMLINK3resfail resfail;
-	} SYMLINK3res_u;
+    nfsstat3 status;
+    union {
+        SYMLINK3resok resok;
+        SYMLINK3resfail resfail;
+    } SYMLINK3res_u;
 };
 typedef struct SYMLINK3res SYMLINK3res;
 
 struct devicedata3 {
-	sattr3 dev_attributes;
-	specdata3 spec;
+    sattr3 dev_attributes;
+    specdata3 spec;
 };
 typedef struct devicedata3 devicedata3;
 
 struct mknoddata3 {
-	ftype3 type;
-	union {
-		devicedata3 device;
-		sattr3 pipe_attributes;
-	} mknoddata3_u;
+    ftype3 type;
+    union {
+        devicedata3 device;
+        sattr3 pipe_attributes;
+    } mknoddata3_u;
 };
 typedef struct mknoddata3 mknoddata3;
 
 struct MKNOD3args {
-	diropargs3 where;
-	mknoddata3 what;
+    diropargs3 where;
+    mknoddata3 what;
 };
 typedef struct MKNOD3args MKNOD3args;
 
 struct MKNOD3resok {
-	post_op_fh3 obj;
-	post_op_attr obj_attributes;
-	wcc_data dir_wcc;
+    post_op_fh3 obj;
+    post_op_attr obj_attributes;
+    wcc_data dir_wcc;
 };
 typedef struct MKNOD3resok MKNOD3resok;
 
 struct MKNOD3resfail {
-	wcc_data dir_wcc;
+    wcc_data dir_wcc;
 };
 typedef struct MKNOD3resfail MKNOD3resfail;
 
 struct MKNOD3res {
-	nfsstat3 status;
-	union {
-		MKNOD3resok resok;
-		MKNOD3resfail resfail;
-	} MKNOD3res_u;
+    nfsstat3 status;
+    union {
+        MKNOD3resok resok;
+        MKNOD3resfail resfail;
+    } MKNOD3res_u;
 };
 typedef struct MKNOD3res MKNOD3res;
 
 struct REMOVE3args {
-	diropargs3 object;
+    diropargs3 object;
 };
 typedef struct REMOVE3args REMOVE3args;
 
 struct REMOVE3resok {
-	wcc_data dir_wcc;
+    wcc_data dir_wcc;
 };
 typedef struct REMOVE3resok REMOVE3resok;
 
 struct REMOVE3resfail {
-	wcc_data dir_wcc;
+    wcc_data dir_wcc;
 };
 typedef struct REMOVE3resfail REMOVE3resfail;
 
 struct REMOVE3res {
-	nfsstat3 status;
-	union {
-		REMOVE3resok resok;
-		REMOVE3resfail resfail;
-	} REMOVE3res_u;
+    nfsstat3 status;
+    union {
+        REMOVE3resok resok;
+        REMOVE3resfail resfail;
+    } REMOVE3res_u;
 };
 typedef struct REMOVE3res REMOVE3res;
 
 struct RMDIR3args {
-	diropargs3 object;
+    diropargs3 object;
 };
 typedef struct RMDIR3args RMDIR3args;
 
 struct RMDIR3resok {
-	wcc_data dir_wcc;
+    wcc_data dir_wcc;
 };
 typedef struct RMDIR3resok RMDIR3resok;
 
 struct RMDIR3resfail {
-	wcc_data dir_wcc;
+    wcc_data dir_wcc;
 };
 typedef struct RMDIR3resfail RMDIR3resfail;
 
 struct RMDIR3res {
-	nfsstat3 status;
-	union {
-		RMDIR3resok resok;
-		RMDIR3resfail resfail;
-	} RMDIR3res_u;
+    nfsstat3 status;
+    union {
+        RMDIR3resok resok;
+        RMDIR3resfail resfail;
+    } RMDIR3res_u;
 };
 typedef struct RMDIR3res RMDIR3res;
 
 struct RENAME3args {
-	diropargs3 from;
-	diropargs3 to;
+    diropargs3 from;
+    diropargs3 to;
 };
 typedef struct RENAME3args RENAME3args;
 
 struct RENAME3resok {
-	wcc_data fromdir_wcc;
-	wcc_data todir_wcc;
+    wcc_data fromdir_wcc;
+    wcc_data todir_wcc;
 };
 typedef struct RENAME3resok RENAME3resok;
 
 struct RENAME3resfail {
-	wcc_data fromdir_wcc;
-	wcc_data todir_wcc;
+    wcc_data fromdir_wcc;
+    wcc_data todir_wcc;
 };
 typedef struct RENAME3resfail RENAME3resfail;
 
 struct RENAME3res {
-	nfsstat3 status;
-	union {
-		RENAME3resok resok;
-		RENAME3resfail resfail;
-	} RENAME3res_u;
+    nfsstat3 status;
+    union {
+        RENAME3resok resok;
+        RENAME3resfail resfail;
+    } RENAME3res_u;
 };
 typedef struct RENAME3res RENAME3res;
 
 struct LINK3args {
-	nfs_fh3 file;
-	diropargs3 link;
+    nfs_fh3 file;
+    diropargs3 link;
 };
 typedef struct LINK3args LINK3args;
 
 struct LINK3resok {
-	post_op_attr file_attributes;
-	wcc_data linkdir_wcc;
+    post_op_attr file_attributes;
+    wcc_data linkdir_wcc;
 };
 typedef struct LINK3resok LINK3resok;
 
 struct LINK3resfail {
-	post_op_attr file_attributes;
-	wcc_data linkdir_wcc;
+    post_op_attr file_attributes;
+    wcc_data linkdir_wcc;
 };
 typedef struct LINK3resfail LINK3resfail;
 
 struct LINK3res {
-	nfsstat3 status;
-	union {
-		LINK3resok resok;
-		LINK3resfail resfail;
-	} LINK3res_u;
+    nfsstat3 status;
+    union {
+        LINK3resok resok;
+        LINK3resfail resfail;
+    } LINK3res_u;
 };
 typedef struct LINK3res LINK3res;
 
 struct READDIR3args {
-	nfs_fh3 dir;
-	cookie3 cookie;
-	cookieverf3 cookieverf;
-	count3 count;
+    nfs_fh3 dir;
+    cookie3 cookie;
+    cookieverf3 cookieverf;
+    count3 count;
 };
 typedef struct READDIR3args READDIR3args;
 
 struct entry3 {
-	fileid3 fileid;
-	filename3 name;
-	cookie3 cookie;
-	struct entry3 *nextentry;
+    fileid3 fileid;
+    filename3 name;
+    cookie3 cookie;
+    struct entry3 *nextentry;
 };
 typedef struct entry3 entry3;
 
 struct dirlist3 {
-	entry3 *entries;
-	bool_t eof;
+    entry3 *entries;
+    bool_t eof;
 };
 typedef struct dirlist3 dirlist3;
 
 struct READDIR3resok {
-	post_op_attr dir_attributes;
-	cookieverf3 cookieverf;
-	dirlist3 reply;
+    post_op_attr dir_attributes;
+    cookieverf3 cookieverf;
+    dirlist3 reply;
 };
 typedef struct READDIR3resok READDIR3resok;
 
 struct READDIR3resfail {
-	post_op_attr dir_attributes;
+    post_op_attr dir_attributes;
 };
 typedef struct READDIR3resfail READDIR3resfail;
 
 struct READDIR3res {
-	nfsstat3 status;
-	union {
-		READDIR3resok resok;
-		READDIR3resfail resfail;
-	} READDIR3res_u;
+    nfsstat3 status;
+    union {
+        READDIR3resok resok;
+        READDIR3resfail resfail;
+    } READDIR3res_u;
 };
 typedef struct READDIR3res READDIR3res;
 
 struct READDIRPLUS3args {
-	nfs_fh3 dir;
-	cookie3 cookie;
-	cookieverf3 cookieverf;
-	count3 dircount;
-	count3 maxcount;
+    nfs_fh3 dir;
+    cookie3 cookie;
+    cookieverf3 cookieverf;
+    count3 dircount;
+    count3 maxcount;
 };
 typedef struct READDIRPLUS3args READDIRPLUS3args;
 
 struct entryplus3 {
-	fileid3 fileid;
-	filename3 name;
-	cookie3 cookie;
-	post_op_attr name_attributes;
-	post_op_fh3 name_handle;
-	struct entryplus3 *nextentry;
+    fileid3 fileid;
+    filename3 name;
+    cookie3 cookie;
+    post_op_attr name_attributes;
+    post_op_fh3 name_handle;
+    struct entryplus3 *nextentry;
 };
 typedef struct entryplus3 entryplus3;
 
 struct dirlistplus3 {
-	entryplus3 *entries;
-	bool_t eof;
+    entryplus3 *entries;
+    bool_t eof;
 };
 typedef struct dirlistplus3 dirlistplus3;
 
 struct READDIRPLUS3resok {
-	post_op_attr dir_attributes;
-	cookieverf3 cookieverf;
-	dirlistplus3 reply;
+    post_op_attr dir_attributes;
+    cookieverf3 cookieverf;
+    dirlistplus3 reply;
 };
 typedef struct READDIRPLUS3resok READDIRPLUS3resok;
 
 struct READDIRPLUS3resfail {
-	post_op_attr dir_attributes;
+    post_op_attr dir_attributes;
 };
 typedef struct READDIRPLUS3resfail READDIRPLUS3resfail;
 
 struct READDIRPLUS3res {
-	nfsstat3 status;
-	union {
-		READDIRPLUS3resok resok;
-		READDIRPLUS3resfail resfail;
-	} READDIRPLUS3res_u;
+    nfsstat3 status;
+    union {
+        READDIRPLUS3resok resok;
+        READDIRPLUS3resfail resfail;
+    } READDIRPLUS3res_u;
 };
 typedef struct READDIRPLUS3res READDIRPLUS3res;
 
 struct FSSTAT3args {
-	nfs_fh3 fsroot;
+    nfs_fh3 fsroot;
 };
 typedef struct FSSTAT3args FSSTAT3args;
 
 struct FSSTAT3resok {
-	post_op_attr obj_attributes;
-	size3 tbytes;
-	size3 fbytes;
-	size3 abytes;
-	size3 tfiles;
-	size3 ffiles;
-	size3 afiles;
-	uint32 invarsec;
+    post_op_attr obj_attributes;
+    size3 tbytes;
+    size3 fbytes;
+    size3 abytes;
+    size3 tfiles;
+    size3 ffiles;
+    size3 afiles;
+    uint32 invarsec;
 };
 typedef struct FSSTAT3resok FSSTAT3resok;
 
 struct FSSTAT3resfail {
-	post_op_attr obj_attributes;
+    post_op_attr obj_attributes;
 };
 typedef struct FSSTAT3resfail FSSTAT3resfail;
 
 struct FSSTAT3res {
-	nfsstat3 status;
-	union {
-		FSSTAT3resok resok;
-		FSSTAT3resfail resfail;
-	} FSSTAT3res_u;
+    nfsstat3 status;
+    union {
+        FSSTAT3resok resok;
+        FSSTAT3resfail resfail;
+    } FSSTAT3res_u;
 };
 typedef struct FSSTAT3res FSSTAT3res;
 
 struct FSINFO3args {
-	nfs_fh3 fsroot;
+    nfs_fh3 fsroot;
 };
 typedef struct FSINFO3args FSINFO3args;
 
 struct FSINFO3resok {
-	post_op_attr obj_attributes;
-	uint32 rtmax;
-	uint32 rtpref;
-	uint32 rtmult;
-	uint32 wtmax;
-	uint32 wtpref;
-	uint32 wtmult;
-	uint32 dtpref;
-	size3 maxfilesize;
-	nfstime3 time_delta;
-	uint32 properties;
+    post_op_attr obj_attributes;
+    uint32 rtmax;
+    uint32 rtpref;
+    uint32 rtmult;
+    uint32 wtmax;
+    uint32 wtpref;
+    uint32 wtmult;
+    uint32 dtpref;
+    size3 maxfilesize;
+    nfstime3 time_delta;
+    uint32 properties;
 };
 typedef struct FSINFO3resok FSINFO3resok;
 
 struct FSINFO3resfail {
-	post_op_attr obj_attributes;
+    post_op_attr obj_attributes;
 };
 typedef struct FSINFO3resfail FSINFO3resfail;
 
 struct FSINFO3res {
-	nfsstat3 status;
-	union {
-		FSINFO3resok resok;
-		FSINFO3resfail resfail;
-	} FSINFO3res_u;
+    nfsstat3 status;
+    union {
+        FSINFO3resok resok;
+        FSINFO3resfail resfail;
+    } FSINFO3res_u;
 };
 typedef struct FSINFO3res FSINFO3res;
 
 struct PATHCONF3args {
-	nfs_fh3 object;
+    nfs_fh3 object;
 };
 typedef struct PATHCONF3args PATHCONF3args;
 
 struct PATHCONF3resok {
-	post_op_attr obj_attributes;
-	uint32 linkmax;
-	uint32 name_max;
-	bool_t no_trunc;
-	bool_t chown_restricted;
-	bool_t case_insensitive;
-	bool_t case_preserving;
+    post_op_attr obj_attributes;
+    uint32 linkmax;
+    uint32 name_max;
+    bool_t no_trunc;
+    bool_t chown_restricted;
+    bool_t case_insensitive;
+    bool_t case_preserving;
 };
 typedef struct PATHCONF3resok PATHCONF3resok;
 
 struct PATHCONF3resfail {
-	post_op_attr obj_attributes;
+    post_op_attr obj_attributes;
 };
 typedef struct PATHCONF3resfail PATHCONF3resfail;
 
 struct PATHCONF3res {
-	nfsstat3 status;
-	union {
-		PATHCONF3resok resok;
-		PATHCONF3resfail resfail;
-	} PATHCONF3res_u;
+    nfsstat3 status;
+    union {
+        PATHCONF3resok resok;
+        PATHCONF3resfail resfail;
+    } PATHCONF3res_u;
 };
 typedef struct PATHCONF3res PATHCONF3res;
 
 struct COMMIT3args {
-	nfs_fh3 file;
-	offset3 offset;
-	count3 count;
+    nfs_fh3 file;
+    offset3 offset;
+    count3 count;
 };
 typedef struct COMMIT3args COMMIT3args;
 
 struct COMMIT3resok {
-	wcc_data file_wcc;
-	writeverf3 verf;
+    wcc_data file_wcc;
+    writeverf3 verf;
 };
 typedef struct COMMIT3resok COMMIT3resok;
 
 struct COMMIT3resfail {
-	wcc_data file_wcc;
+    wcc_data file_wcc;
 };
 typedef struct COMMIT3resfail COMMIT3resfail;
 
 struct COMMIT3res {
-	nfsstat3 status;
-	union {
-		COMMIT3resok resok;
-		COMMIT3resfail resfail;
-	} COMMIT3res_u;
+    nfsstat3 status;
+    union {
+        COMMIT3resok resok;
+        COMMIT3resfail resfail;
+    } COMMIT3res_u;
 };
 typedef struct COMMIT3res COMMIT3res;
 
-#define	NFS_PROGRAM	100003
-#define	NFS_V3	3
+#define NFS_PROGRAM 100003
+#define NFS_V3  3
 
-#define	NFSPROC3_NULL	0
+#define NFSPROC3_NULL   0
 extern  enum clnt_stat nfsproc3_null_3(void *, CLIENT *);
-#define	NFSPROC3_GETATTR	1
+#define NFSPROC3_GETATTR    1
 extern  enum clnt_stat nfsproc3_getattr_3(GETATTR3args , GETATTR3res *, CLIENT *);
-#define	NFSPROC3_SETATTR	2
+#define NFSPROC3_SETATTR    2
 extern  enum clnt_stat nfsproc3_setattr_3(SETATTR3args , SETATTR3res *, CLIENT *);
-#define	NFSPROC3_LOOKUP	3
+#define NFSPROC3_LOOKUP 3
 extern  enum clnt_stat nfsproc3_lookup_3(LOOKUP3args , LOOKUP3res *, CLIENT *);
-#define	NFSPROC3_ACCESS	4
+#define NFSPROC3_ACCESS 4
 extern  enum clnt_stat nfsproc3_access_3(ACCESS3args , ACCESS3res *, CLIENT *);
-#define	NFSPROC3_READLINK	5
+#define NFSPROC3_READLINK   5
 extern  enum clnt_stat nfsproc3_readlink_3(READLINK3args , READLINK3res *, CLIENT *);
-#define	NFSPROC3_READ	6
+#define NFSPROC3_READ   6
 extern  enum clnt_stat nfsproc3_read_3(READ3args , READ3res *, CLIENT *);
-#define	NFSPROC3_WRITE	7
+#define NFSPROC3_WRITE  7
 extern  enum clnt_stat nfsproc3_write_3(WRITE3args , WRITE3res *, CLIENT *);
-#define	NFSPROC3_CREATE	8
+#define NFSPROC3_CREATE 8
 extern  enum clnt_stat nfsproc3_create_3(CREATE3args , CREATE3res *, CLIENT *);
-#define	NFSPROC3_MKDIR	9
+#define NFSPROC3_MKDIR  9
 extern  enum clnt_stat nfsproc3_mkdir_3(MKDIR3args , MKDIR3res *, CLIENT *);
-#define	NFSPROC3_SYMLINK	10
+#define NFSPROC3_SYMLINK    10
 extern  enum clnt_stat nfsproc3_symlink_3(SYMLINK3args , SYMLINK3res *, CLIENT *);
-#define	NFSPROC3_MKNOD	11
+#define NFSPROC3_MKNOD  11
 extern  enum clnt_stat nfsproc3_mknod_3(MKNOD3args , MKNOD3res *, CLIENT *);
-#define	NFSPROC3_REMOVE	12
+#define NFSPROC3_REMOVE 12
 extern  enum clnt_stat nfsproc3_remove_3(REMOVE3args , REMOVE3res *, CLIENT *);
-#define	NFSPROC3_RMDIR	13
+#define NFSPROC3_RMDIR  13
 extern  enum clnt_stat nfsproc3_rmdir_3(RMDIR3args , RMDIR3res *, CLIENT *);
-#define	NFSPROC3_RENAME	14
+#define NFSPROC3_RENAME 14
 extern  enum clnt_stat nfsproc3_rename_3(RENAME3args , RENAME3res *, CLIENT *);
-#define	NFSPROC3_LINK	15
+#define NFSPROC3_LINK   15
 extern  enum clnt_stat nfsproc3_link_3(LINK3args , LINK3res *, CLIENT *);
-#define	NFSPROC3_READDIR	16
+#define NFSPROC3_READDIR    16
 extern  enum clnt_stat nfsproc3_readdir_3(READDIR3args , READDIR3res *, CLIENT *);
-#define	NFSPROC3_READDIRPLUS	17
+#define NFSPROC3_READDIRPLUS    17
 extern  enum clnt_stat nfsproc3_readdirplus_3(READDIRPLUS3args , READDIRPLUS3res *, CLIENT *);
-#define	NFSPROC3_FSSTAT	18
+#define NFSPROC3_FSSTAT 18
 extern  enum clnt_stat nfsproc3_fsstat_3(FSSTAT3args , FSSTAT3res *, CLIENT *);
-#define	NFSPROC3_FSINFO	19
+#define NFSPROC3_FSINFO 19
 extern  enum clnt_stat nfsproc3_fsinfo_3(FSINFO3args , FSINFO3res *, CLIENT *);
-#define	NFSPROC3_PATHCONF	20
+#define NFSPROC3_PATHCONF   20
 extern  enum clnt_stat nfsproc3_pathconf_3(PATHCONF3args , PATHCONF3res *, CLIENT *);
-#define	NFSPROC3_COMMIT	21
+#define NFSPROC3_COMMIT 21
 extern  enum clnt_stat nfsproc3_commit_3(COMMIT3args , COMMIT3res *, CLIENT *);
 
 /* the xdr functions */
diff --git a/components/dfs/filesystems/nfs/nfs_auth.c b/components/dfs/filesystems/nfs/nfs_auth.c
index c65a1126a6..4b6be8d498 100644
--- a/components/dfs/filesystems/nfs/nfs_auth.c
+++ b/components/dfs/filesystems/nfs/nfs_auth.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/nfs/nfs_clnt.c b/components/dfs/filesystems/nfs/nfs_clnt.c
index c17fee9e80..b50cf7ff1d 100644
--- a/components/dfs/filesystems/nfs/nfs_clnt.c
+++ b/components/dfs/filesystems/nfs/nfs_clnt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -23,200 +23,200 @@ typedef char* caddr_t;
 /* Default timeout can be changed using clnt_control() */
 static struct timeval TIMEOUT = { 25, 0 };
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_null_3(void *clnt_res, CLIENT *clnt)
 {
-	 return (clnt_call(clnt, NFSPROC3_NULL,
-		(xdrproc_t) xdr_void, (caddr_t) NULL,
-		(xdrproc_t) xdr_void, (caddr_t) clnt_res,
-		TIMEOUT));
+     return (clnt_call(clnt, NFSPROC3_NULL,
+        (xdrproc_t) xdr_void, (caddr_t) NULL,
+        (xdrproc_t) xdr_void, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_getattr_3(GETATTR3args arg1, GETATTR3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_GETATTR,
-		(xdrproc_t) xdr_GETATTR3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_GETATTR3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_GETATTR,
+        (xdrproc_t) xdr_GETATTR3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_GETATTR3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_setattr_3(SETATTR3args arg1, SETATTR3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_SETATTR,
-		(xdrproc_t) xdr_SETATTR3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_SETATTR3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_SETATTR,
+        (xdrproc_t) xdr_SETATTR3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_SETATTR3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_lookup_3(LOOKUP3args arg1, LOOKUP3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_LOOKUP,
-		(xdrproc_t) xdr_LOOKUP3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_LOOKUP3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_LOOKUP,
+        (xdrproc_t) xdr_LOOKUP3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_LOOKUP3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_access_3(ACCESS3args arg1, ACCESS3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_ACCESS,
-		(xdrproc_t) xdr_ACCESS3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_ACCESS3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_ACCESS,
+        (xdrproc_t) xdr_ACCESS3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_ACCESS3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_readlink_3(READLINK3args arg1, READLINK3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_READLINK,
-		(xdrproc_t) xdr_READLINK3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_READLINK3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_READLINK,
+        (xdrproc_t) xdr_READLINK3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_READLINK3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_read_3(READ3args arg1, READ3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_READ,
-		(xdrproc_t) xdr_READ3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_READ3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_READ,
+        (xdrproc_t) xdr_READ3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_READ3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_write_3(WRITE3args arg1, WRITE3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_WRITE,
-		(xdrproc_t) xdr_WRITE3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_WRITE3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_WRITE,
+        (xdrproc_t) xdr_WRITE3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_WRITE3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_create_3(CREATE3args arg1, CREATE3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_CREATE,
-		(xdrproc_t) xdr_CREATE3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_CREATE3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_CREATE,
+        (xdrproc_t) xdr_CREATE3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_CREATE3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_mkdir_3(MKDIR3args arg1, MKDIR3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_MKDIR,
-		(xdrproc_t) xdr_MKDIR3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_MKDIR3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_MKDIR,
+        (xdrproc_t) xdr_MKDIR3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_MKDIR3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_symlink_3(SYMLINK3args arg1, SYMLINK3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_SYMLINK,
-		(xdrproc_t) xdr_SYMLINK3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_SYMLINK3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_SYMLINK,
+        (xdrproc_t) xdr_SYMLINK3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_SYMLINK3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_mknod_3(MKNOD3args arg1, MKNOD3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_MKNOD,
-		(xdrproc_t) xdr_MKNOD3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_MKNOD3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_MKNOD,
+        (xdrproc_t) xdr_MKNOD3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_MKNOD3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_remove_3(REMOVE3args arg1, REMOVE3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_REMOVE,
-		(xdrproc_t) xdr_REMOVE3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_REMOVE3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_REMOVE,
+        (xdrproc_t) xdr_REMOVE3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_REMOVE3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_rmdir_3(RMDIR3args arg1, RMDIR3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_RMDIR,
-		(xdrproc_t) xdr_RMDIR3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_RMDIR3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_RMDIR,
+        (xdrproc_t) xdr_RMDIR3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_RMDIR3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_rename_3(RENAME3args arg1, RENAME3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_RENAME,
-		(xdrproc_t) xdr_RENAME3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_RENAME3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_RENAME,
+        (xdrproc_t) xdr_RENAME3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_RENAME3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_link_3(LINK3args arg1, LINK3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_LINK,
-		(xdrproc_t) xdr_LINK3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_LINK3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_LINK,
+        (xdrproc_t) xdr_LINK3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_LINK3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_readdir_3(READDIR3args arg1, READDIR3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_READDIR,
-		(xdrproc_t) xdr_READDIR3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_READDIR3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_READDIR,
+        (xdrproc_t) xdr_READDIR3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_READDIR3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_readdirplus_3(READDIRPLUS3args arg1, READDIRPLUS3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_READDIRPLUS,
-		(xdrproc_t) xdr_READDIRPLUS3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_READDIRPLUS3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_READDIRPLUS,
+        (xdrproc_t) xdr_READDIRPLUS3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_READDIRPLUS3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_fsstat_3(FSSTAT3args arg1, FSSTAT3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_FSSTAT,
-		(xdrproc_t) xdr_FSSTAT3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_FSSTAT3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_FSSTAT,
+        (xdrproc_t) xdr_FSSTAT3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_FSSTAT3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_fsinfo_3(FSINFO3args arg1, FSINFO3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_FSINFO,
-		(xdrproc_t) xdr_FSINFO3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_FSINFO3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_FSINFO,
+        (xdrproc_t) xdr_FSINFO3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_FSINFO3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_pathconf_3(PATHCONF3args arg1, PATHCONF3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_PATHCONF,
-		(xdrproc_t) xdr_PATHCONF3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_PATHCONF3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_PATHCONF,
+        (xdrproc_t) xdr_PATHCONF3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_PATHCONF3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
 
-enum clnt_stat 
+enum clnt_stat
 nfsproc3_commit_3(COMMIT3args arg1, COMMIT3res *clnt_res, CLIENT *clnt)
 {
-	return (clnt_call(clnt, NFSPROC3_COMMIT,
-		(xdrproc_t) xdr_COMMIT3args, (caddr_t) &arg1,
-		(xdrproc_t) xdr_COMMIT3res, (caddr_t) clnt_res,
-		TIMEOUT));
+    return (clnt_call(clnt, NFSPROC3_COMMIT,
+        (xdrproc_t) xdr_COMMIT3args, (caddr_t) &arg1,
+        (xdrproc_t) xdr_COMMIT3res, (caddr_t) clnt_res,
+        TIMEOUT));
 }
diff --git a/components/dfs/filesystems/nfs/nfs_xdr.c b/components/dfs/filesystems/nfs/nfs_xdr.c
index 33563976c3..2662a17df6 100644
--- a/components/dfs/filesystems/nfs/nfs_xdr.c
+++ b/components/dfs/filesystems/nfs/nfs_xdr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -19,1604 +19,1604 @@
 bool_t
 xdr_uint64(register XDR *xdrs, uint64 *objp)
 {
-	if (!xdr_u_longlong_t(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_u_longlong_t(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_int64(register XDR *xdrs, int64 *objp)
 {
-	if (!xdr_longlong_t(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_longlong_t(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_uint32(register XDR *xdrs, uint32 *objp)
 {
-	if (!xdr_u_long(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_u_long(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_int32(register XDR *xdrs, int32 *objp)
 {
-	if (!xdr_long(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_long(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_filename3(register XDR *xdrs, filename3 *objp)
 {
-	if (!xdr_string(xdrs, objp, ~0))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_string(xdrs, objp, ~0))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_nfspath3(register XDR *xdrs, nfspath3 *objp)
 {
-	if (!xdr_string(xdrs, objp, ~0))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_string(xdrs, objp, ~0))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_fileid3(register XDR *xdrs, fileid3 *objp)
 {
-	if (!xdr_uint64(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint64(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_cookie3(register XDR *xdrs, cookie3 *objp)
 {
-	if (!xdr_uint64(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint64(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_cookieverf3(register XDR *xdrs, cookieverf3 objp)
 {
-	if (!xdr_opaque(xdrs, objp, NFS3_COOKIEVERFSIZE))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_opaque(xdrs, objp, NFS3_COOKIEVERFSIZE))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_createverf3(register XDR *xdrs, createverf3 objp)
 {
-	if (!xdr_opaque(xdrs, objp, NFS3_CREATEVERFSIZE))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_opaque(xdrs, objp, NFS3_CREATEVERFSIZE))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_writeverf3(register XDR *xdrs, writeverf3 objp)
 {
-	if (!xdr_opaque(xdrs, objp, NFS3_WRITEVERFSIZE))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_opaque(xdrs, objp, NFS3_WRITEVERFSIZE))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_uid3(register XDR *xdrs, uid3 *objp)
 {
-	if (!xdr_uint32(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint32(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_gid3(register XDR *xdrs, gid3 *objp)
 {
-	if (!xdr_uint32(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint32(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_size3(register XDR *xdrs, size3 *objp)
 {
-	if (!xdr_uint64(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint64(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_offset3(register XDR *xdrs, offset3 *objp)
 {
-	if (!xdr_uint64(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint64(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_mode3(register XDR *xdrs, mode3 *objp)
 {
-	if (!xdr_uint32(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint32(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_count3(register XDR *xdrs, count3 *objp)
 {
-	if (!xdr_uint32(xdrs, objp))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint32(xdrs, objp))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_nfsstat3(register XDR *xdrs, nfsstat3 *objp)
 {
-	int enum_objp;
-	enum_objp = *objp;
-	if (!xdr_enum(xdrs, (enum_t *)objp))
-	{
-		*objp = (nfsstat3)enum_objp;
-		return (FALSE);
-	}
+    int enum_objp;
+    enum_objp = *objp;
+    if (!xdr_enum(xdrs, (enum_t *)objp))
+    {
+        *objp = (nfsstat3)enum_objp;
+        return (FALSE);
+    }
 
-	return (TRUE);
+    return (TRUE);
 }
 
 bool_t
 xdr_ftype3(register XDR *xdrs, ftype3 *objp)
 {
-	int enum_objp;
-	enum_objp = *objp;
-	if (!xdr_enum(xdrs, (enum_t *)objp))
-	{
-		*objp = (ftype3)enum_objp;
-		return (FALSE);
-	}
-	
-	return (TRUE);
+    int enum_objp;
+    enum_objp = *objp;
+    if (!xdr_enum(xdrs, (enum_t *)objp))
+    {
+        *objp = (ftype3)enum_objp;
+        return (FALSE);
+    }
+
+    return (TRUE);
 }
 
 bool_t
 xdr_stable_how(register XDR *xdrs, stable_how *objp)
 {
-	int enum_objp;
-	enum_objp = *objp;
-	if (!xdr_enum(xdrs, (enum_t *)objp))
-	{
-		*objp = (stable_how)enum_objp;
-		return (FALSE);
-	}
-	
-	return (TRUE);
+    int enum_objp;
+    enum_objp = *objp;
+    if (!xdr_enum(xdrs, (enum_t *)objp))
+    {
+        *objp = (stable_how)enum_objp;
+        return (FALSE);
+    }
+
+    return (TRUE);
 }
 
 bool_t
 xdr_createmode3(register XDR *xdrs, createmode3 *objp)
 {
-	int enum_objp;
-	enum_objp = *objp;
-	if (!xdr_enum(xdrs, (enum_t *)objp))
-	{
-		*objp = (createmode3)enum_objp;
-		return (FALSE);
-	}
-	
-	return (TRUE);
+    int enum_objp;
+    enum_objp = *objp;
+    if (!xdr_enum(xdrs, (enum_t *)objp))
+    {
+        *objp = (createmode3)enum_objp;
+        return (FALSE);
+    }
+
+    return (TRUE);
 }
 
 bool_t
 xdr_specdata3(register XDR *xdrs, specdata3 *objp)
 {
-	if (!xdr_uint32(xdrs, &objp->specdata1))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->specdata2))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint32(xdrs, &objp->specdata1))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->specdata2))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_nfs_fh3(register XDR *xdrs, nfs_fh3 *objp)
 {
-	if (!xdr_bytes(xdrs, (char **)&objp->data.data_val, (unsigned int *) &objp->data.data_len, NFS3_FHSIZE))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_bytes(xdrs, (char **)&objp->data.data_val, (unsigned int *) &objp->data.data_len, NFS3_FHSIZE))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_nfstime3(register XDR *xdrs, nfstime3 *objp)
 {
-	if (!xdr_uint32(xdrs, &objp->seconds))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->nseconds))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_uint32(xdrs, &objp->seconds))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->nseconds))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_fattr3(register XDR *xdrs, fattr3 *objp)
 {
-	if (!xdr_ftype3(xdrs, &objp->type))
-		return (FALSE);
-	if (!xdr_mode3(xdrs, &objp->mode))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->nlink))
-		return (FALSE);
-	if (!xdr_uid3(xdrs, &objp->uid))
-		return (FALSE);
-	if (!xdr_gid3(xdrs, &objp->gid))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->size))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->used))
-		return (FALSE);
-	if (!xdr_specdata3(xdrs, &objp->rdev))
-		return (FALSE);
-	if (!xdr_uint64(xdrs, &objp->fsid))
-		return (FALSE);
-	if (!xdr_fileid3(xdrs, &objp->fileid))
-		return (FALSE);
-	if (!xdr_nfstime3(xdrs, &objp->atime))
-		return (FALSE);
-	if (!xdr_nfstime3(xdrs, &objp->mtime))
-		return (FALSE);
-	if (!xdr_nfstime3(xdrs, &objp->ctime))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_ftype3(xdrs, &objp->type))
+        return (FALSE);
+    if (!xdr_mode3(xdrs, &objp->mode))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->nlink))
+        return (FALSE);
+    if (!xdr_uid3(xdrs, &objp->uid))
+        return (FALSE);
+    if (!xdr_gid3(xdrs, &objp->gid))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->size))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->used))
+        return (FALSE);
+    if (!xdr_specdata3(xdrs, &objp->rdev))
+        return (FALSE);
+    if (!xdr_uint64(xdrs, &objp->fsid))
+        return (FALSE);
+    if (!xdr_fileid3(xdrs, &objp->fileid))
+        return (FALSE);
+    if (!xdr_nfstime3(xdrs, &objp->atime))
+        return (FALSE);
+    if (!xdr_nfstime3(xdrs, &objp->mtime))
+        return (FALSE);
+    if (!xdr_nfstime3(xdrs, &objp->ctime))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_post_op_attr(register XDR *xdrs, post_op_attr *objp)
 {
-	if (!xdr_bool(xdrs, &objp->attributes_follow))
-		return (FALSE);
-	switch (objp->attributes_follow) {
-	case TRUE:
-		if (!xdr_fattr3(xdrs, &objp->post_op_attr_u.attributes))
-			return (FALSE);
-		break;
-	case FALSE:
-		break;
-	default:
-		return (FALSE);
-	}
-	return (TRUE);
+    if (!xdr_bool(xdrs, &objp->attributes_follow))
+        return (FALSE);
+    switch (objp->attributes_follow) {
+    case TRUE:
+        if (!xdr_fattr3(xdrs, &objp->post_op_attr_u.attributes))
+            return (FALSE);
+        break;
+    case FALSE:
+        break;
+    default:
+        return (FALSE);
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_wcc_attr(register XDR *xdrs, wcc_attr *objp)
 {
-	if (!xdr_size3(xdrs, &objp->size))
-		return (FALSE);
-	if (!xdr_nfstime3(xdrs, &objp->mtime))
-		return (FALSE);
-	if (!xdr_nfstime3(xdrs, &objp->ctime))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_size3(xdrs, &objp->size))
+        return (FALSE);
+    if (!xdr_nfstime3(xdrs, &objp->mtime))
+        return (FALSE);
+    if (!xdr_nfstime3(xdrs, &objp->ctime))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_pre_op_attr(register XDR *xdrs, pre_op_attr *objp)
 {
-	if (!xdr_bool(xdrs, &objp->attributes_follow))
-		return (FALSE);
-	switch (objp->attributes_follow) {
-	case TRUE:
-		if (!xdr_wcc_attr(xdrs, &objp->pre_op_attr_u.attributes))
-			return (FALSE);
-		break;
-	case FALSE:
-		break;
-	default:
-		return (FALSE);
-	}
-	return (TRUE);
+    if (!xdr_bool(xdrs, &objp->attributes_follow))
+        return (FALSE);
+    switch (objp->attributes_follow) {
+    case TRUE:
+        if (!xdr_wcc_attr(xdrs, &objp->pre_op_attr_u.attributes))
+            return (FALSE);
+        break;
+    case FALSE:
+        break;
+    default:
+        return (FALSE);
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_wcc_data(register XDR *xdrs, wcc_data *objp)
 {
-	if (!xdr_pre_op_attr(xdrs, &objp->before))
-		return (FALSE);
-	if (!xdr_post_op_attr(xdrs, &objp->after))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_pre_op_attr(xdrs, &objp->before))
+        return (FALSE);
+    if (!xdr_post_op_attr(xdrs, &objp->after))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_post_op_fh3(register XDR *xdrs, post_op_fh3 *objp)
 {
-	if (!xdr_bool(xdrs, &objp->handle_follows))
-		return (FALSE);
-	switch (objp->handle_follows) {
-	case TRUE:
-		if (!xdr_nfs_fh3(xdrs, &objp->post_op_fh3_u.handle))
-			return (FALSE);
-		break;
-	case FALSE:
-		break;
-	default:
-		return (FALSE);
-	}
-	return (TRUE);
+    if (!xdr_bool(xdrs, &objp->handle_follows))
+        return (FALSE);
+    switch (objp->handle_follows) {
+    case TRUE:
+        if (!xdr_nfs_fh3(xdrs, &objp->post_op_fh3_u.handle))
+            return (FALSE);
+        break;
+    case FALSE:
+        break;
+    default:
+        return (FALSE);
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_time_how(register XDR *xdrs, time_how *objp)
 {
-	int enum_objp;
-	enum_objp = *objp;
-	if (!xdr_enum(xdrs, (enum_t *)objp))
-	{
-		*objp = (time_how)enum_objp;
-		return (FALSE);
-	}
-	
-	return (TRUE);
+    int enum_objp;
+    enum_objp = *objp;
+    if (!xdr_enum(xdrs, (enum_t *)objp))
+    {
+        *objp = (time_how)enum_objp;
+        return (FALSE);
+    }
+
+    return (TRUE);
 }
 
 bool_t
 xdr_set_mode3(register XDR *xdrs, set_mode3 *objp)
 {
-	if (!xdr_bool(xdrs, &objp->set_it))
-		return (FALSE);
-	switch (objp->set_it) {
-	case TRUE:
-		if (!xdr_mode3(xdrs, &objp->set_mode3_u.mode))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_bool(xdrs, &objp->set_it))
+        return (FALSE);
+    switch (objp->set_it) {
+    case TRUE:
+        if (!xdr_mode3(xdrs, &objp->set_mode3_u.mode))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_set_uid3(register XDR *xdrs, set_uid3 *objp)
 {
-	if (!xdr_bool(xdrs, &objp->set_it))
-		return (FALSE);
-	switch (objp->set_it) {
-	case TRUE:
-		if (!xdr_uid3(xdrs, &objp->set_uid3_u.uid))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_bool(xdrs, &objp->set_it))
+        return (FALSE);
+    switch (objp->set_it) {
+    case TRUE:
+        if (!xdr_uid3(xdrs, &objp->set_uid3_u.uid))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_set_gid3(register XDR *xdrs, set_gid3 *objp)
 {
-	if (!xdr_bool(xdrs, &objp->set_it))
-		return (FALSE);
-	switch (objp->set_it) {
-	case TRUE:
-		if (!xdr_gid3(xdrs, &objp->set_gid3_u.gid))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_bool(xdrs, &objp->set_it))
+        return (FALSE);
+    switch (objp->set_it) {
+    case TRUE:
+        if (!xdr_gid3(xdrs, &objp->set_gid3_u.gid))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_set_size3(register XDR *xdrs, set_size3 *objp)
 {
-	if (!xdr_bool(xdrs, &objp->set_it))
-		return (FALSE);
-	switch (objp->set_it) {
-	case TRUE:
-		if (!xdr_size3(xdrs, &objp->set_size3_u.size))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_bool(xdrs, &objp->set_it))
+        return (FALSE);
+    switch (objp->set_it) {
+    case TRUE:
+        if (!xdr_size3(xdrs, &objp->set_size3_u.size))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_set_atime(register XDR *xdrs, set_atime *objp)
 {
-	if (!xdr_time_how(xdrs, &objp->set_it))
-		return (FALSE);
-	switch (objp->set_it) {
-	case SET_TO_CLIENT_TIME:
-		if (!xdr_nfstime3(xdrs, &objp->set_atime_u.atime))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_time_how(xdrs, &objp->set_it))
+        return (FALSE);
+    switch (objp->set_it) {
+    case SET_TO_CLIENT_TIME:
+        if (!xdr_nfstime3(xdrs, &objp->set_atime_u.atime))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_set_mtime(register XDR *xdrs, set_mtime *objp)
 {
-	if (!xdr_time_how(xdrs, &objp->set_it))
-		return (FALSE);
-	switch (objp->set_it) {
-	case SET_TO_CLIENT_TIME:
-		if (!xdr_nfstime3(xdrs, &objp->set_mtime_u.mtime))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_time_how(xdrs, &objp->set_it))
+        return (FALSE);
+    switch (objp->set_it) {
+    case SET_TO_CLIENT_TIME:
+        if (!xdr_nfstime3(xdrs, &objp->set_mtime_u.mtime))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_sattr3(register XDR *xdrs, sattr3 *objp)
 {
-	if (!xdr_set_mode3(xdrs, &objp->mode))
-		return (FALSE);
-	if (!xdr_set_uid3(xdrs, &objp->uid))
-		return (FALSE);
-	if (!xdr_set_gid3(xdrs, &objp->gid))
-		return (FALSE);
-	if (!xdr_set_size3(xdrs, &objp->size))
-		return (FALSE);
-	if (!xdr_set_atime(xdrs, &objp->atime))
-		return (FALSE);
-	if (!xdr_set_mtime(xdrs, &objp->mtime))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_set_mode3(xdrs, &objp->mode))
+        return (FALSE);
+    if (!xdr_set_uid3(xdrs, &objp->uid))
+        return (FALSE);
+    if (!xdr_set_gid3(xdrs, &objp->gid))
+        return (FALSE);
+    if (!xdr_set_size3(xdrs, &objp->size))
+        return (FALSE);
+    if (!xdr_set_atime(xdrs, &objp->atime))
+        return (FALSE);
+    if (!xdr_set_mtime(xdrs, &objp->mtime))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_diropargs3(register XDR *xdrs, diropargs3 *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->dir))
-		return (FALSE);
-	if (!xdr_filename3(xdrs, &objp->name))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->dir))
+        return (FALSE);
+    if (!xdr_filename3(xdrs, &objp->name))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_GETATTR3args(register XDR *xdrs, GETATTR3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->object))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->object))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_GETATTR3resok(register XDR *xdrs, GETATTR3resok *objp)
 {
-	if (!xdr_fattr3(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_fattr3(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_GETATTR3res(register XDR *xdrs, GETATTR3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_GETATTR3resok(xdrs, &objp->GETATTR3res_u.resok))
-			return (FALSE);
-		break;
-	default :
-		return (FALSE);
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_GETATTR3resok(xdrs, &objp->GETATTR3res_u.resok))
+            return (FALSE);
+        break;
+    default :
+        return (FALSE);
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_sattrguard3(register XDR *xdrs, sattrguard3 *objp)
 {
-	if (!xdr_bool(xdrs, &objp->check))
-		return (FALSE);
-	switch (objp->check) {
-	case TRUE:
-		if (!xdr_nfstime3(xdrs, &objp->sattrguard3_u.obj_ctime))
-			return (FALSE);
-		break;
-	case FALSE:
-		break;
-	default:
-		return (FALSE);
-	}
-	return (TRUE);
+    if (!xdr_bool(xdrs, &objp->check))
+        return (FALSE);
+    switch (objp->check) {
+    case TRUE:
+        if (!xdr_nfstime3(xdrs, &objp->sattrguard3_u.obj_ctime))
+            return (FALSE);
+        break;
+    case FALSE:
+        break;
+    default:
+        return (FALSE);
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_SETATTR3args(register XDR *xdrs, SETATTR3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->object))
-		return (FALSE);
-	if (!xdr_sattr3(xdrs, &objp->new_attributes))
-		return (FALSE);
-	if (!xdr_sattrguard3(xdrs, &objp->guard))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->object))
+        return (FALSE);
+    if (!xdr_sattr3(xdrs, &objp->new_attributes))
+        return (FALSE);
+    if (!xdr_sattrguard3(xdrs, &objp->guard))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_SETATTR3resok(register XDR *xdrs, SETATTR3resok *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->obj_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->obj_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_SETATTR3resfail(register XDR *xdrs, SETATTR3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->obj_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->obj_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_SETATTR3res(register XDR *xdrs, SETATTR3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_SETATTR3resok(xdrs, &objp->SETATTR3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_SETATTR3resfail(xdrs, &objp->SETATTR3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_SETATTR3resok(xdrs, &objp->SETATTR3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_SETATTR3resfail(xdrs, &objp->SETATTR3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_LOOKUP3args(register XDR *xdrs, LOOKUP3args *objp)
 {
-	if (!xdr_diropargs3(xdrs, &objp->what))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_diropargs3(xdrs, &objp->what))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_LOOKUP3resok(register XDR *xdrs, LOOKUP3resok *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->object))
-		return (FALSE);
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->object))
+        return (FALSE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_LOOKUP3resfail(register XDR *xdrs, LOOKUP3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_LOOKUP3res(register XDR *xdrs, LOOKUP3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_LOOKUP3resok(xdrs, &objp->LOOKUP3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_LOOKUP3resfail(xdrs, &objp->LOOKUP3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_LOOKUP3resok(xdrs, &objp->LOOKUP3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_LOOKUP3resfail(xdrs, &objp->LOOKUP3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_ACCESS3args(register XDR *xdrs, ACCESS3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->object))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->access))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->object))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->access))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_ACCESS3resok(register XDR *xdrs, ACCESS3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->access))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->access))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_ACCESS3resfail(register XDR *xdrs, ACCESS3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_ACCESS3res(register XDR *xdrs, ACCESS3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_ACCESS3resok(xdrs, &objp->ACCESS3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_ACCESS3resfail(xdrs, &objp->ACCESS3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_ACCESS3resok(xdrs, &objp->ACCESS3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_ACCESS3resfail(xdrs, &objp->ACCESS3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_READLINK3args(register XDR *xdrs, READLINK3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->symlink))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->symlink))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READLINK3resok(register XDR *xdrs, READLINK3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->symlink_attributes))
-		return (FALSE);
-	if (!xdr_nfspath3(xdrs, &objp->data))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->symlink_attributes))
+        return (FALSE);
+    if (!xdr_nfspath3(xdrs, &objp->data))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READLINK3resfail(register XDR *xdrs, READLINK3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->symlink_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->symlink_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READLINK3res(register XDR *xdrs, READLINK3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_READLINK3resok(xdrs, &objp->READLINK3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_READLINK3resfail(xdrs, &objp->READLINK3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_READLINK3resok(xdrs, &objp->READLINK3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_READLINK3resfail(xdrs, &objp->READLINK3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_READ3args(register XDR *xdrs, READ3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->file))
-		return (FALSE);
-	if (!xdr_offset3(xdrs, &objp->offset))
-		return (FALSE);
-	if (!xdr_count3(xdrs, &objp->count))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->file))
+        return (FALSE);
+    if (!xdr_offset3(xdrs, &objp->offset))
+        return (FALSE);
+    if (!xdr_count3(xdrs, &objp->count))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READ3resok(register XDR *xdrs, READ3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->file_attributes))
-		return (FALSE);
-	if (!xdr_count3(xdrs, &objp->count))
-		return (FALSE);
-	if (!xdr_bool(xdrs, &objp->eof))
-		return (FALSE);
-	if (!xdr_bytes(xdrs, (char **)&objp->data.data_val, (unsigned int *) &objp->data.data_len, ~0))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->file_attributes))
+        return (FALSE);
+    if (!xdr_count3(xdrs, &objp->count))
+        return (FALSE);
+    if (!xdr_bool(xdrs, &objp->eof))
+        return (FALSE);
+    if (!xdr_bytes(xdrs, (char **)&objp->data.data_val, (unsigned int *) &objp->data.data_len, ~0))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READ3resfail(register XDR *xdrs, READ3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->file_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->file_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READ3res(register XDR *xdrs, READ3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_READ3resok(xdrs, &objp->READ3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_READ3resfail(xdrs, &objp->READ3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_READ3resok(xdrs, &objp->READ3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_READ3resfail(xdrs, &objp->READ3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_WRITE3args(register XDR *xdrs, WRITE3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->file))
-		return (FALSE);
-	if (!xdr_offset3(xdrs, &objp->offset))
-		return (FALSE);
-	if (!xdr_count3(xdrs, &objp->count))
-		return (FALSE);
-	if (!xdr_stable_how(xdrs, &objp->stable))
-		return (FALSE);
-	if (!xdr_bytes(xdrs, (char **)&objp->data.data_val, (unsigned int *) &objp->data.data_len, ~0))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->file))
+        return (FALSE);
+    if (!xdr_offset3(xdrs, &objp->offset))
+        return (FALSE);
+    if (!xdr_count3(xdrs, &objp->count))
+        return (FALSE);
+    if (!xdr_stable_how(xdrs, &objp->stable))
+        return (FALSE);
+    if (!xdr_bytes(xdrs, (char **)&objp->data.data_val, (unsigned int *) &objp->data.data_len, ~0))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_WRITE3resok(register XDR *xdrs, WRITE3resok *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->file_wcc))
-		return (FALSE);
-	if (!xdr_count3(xdrs, &objp->count))
-		return (FALSE);
-	if (!xdr_stable_how(xdrs, &objp->committed))
-		return (FALSE);
-	if (!xdr_writeverf3(xdrs, objp->verf))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->file_wcc))
+        return (FALSE);
+    if (!xdr_count3(xdrs, &objp->count))
+        return (FALSE);
+    if (!xdr_stable_how(xdrs, &objp->committed))
+        return (FALSE);
+    if (!xdr_writeverf3(xdrs, objp->verf))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_WRITE3resfail(register XDR *xdrs, WRITE3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->file_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->file_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_WRITE3res(register XDR *xdrs, WRITE3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_WRITE3resok(xdrs, &objp->WRITE3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_WRITE3resfail(xdrs, &objp->WRITE3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_WRITE3resok(xdrs, &objp->WRITE3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_WRITE3resfail(xdrs, &objp->WRITE3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_createhow3(register XDR *xdrs, createhow3 *objp)
 {
-	if (!xdr_createmode3(xdrs, &objp->mode))
-		return (FALSE);
-	switch (objp->mode) {
-	case UNCHECKED:
-	case GUARDED:
-		if (!xdr_sattr3(xdrs, &objp->createhow3_u.obj_attributes))
-			return (FALSE);
-		break;
-	case EXCLUSIVE:
-		if (!xdr_createverf3(xdrs, objp->createhow3_u.verf))
-			return (FALSE);
-		break;
-	default:
-		return (FALSE);
-	}
-	return (TRUE);
+    if (!xdr_createmode3(xdrs, &objp->mode))
+        return (FALSE);
+    switch (objp->mode) {
+    case UNCHECKED:
+    case GUARDED:
+        if (!xdr_sattr3(xdrs, &objp->createhow3_u.obj_attributes))
+            return (FALSE);
+        break;
+    case EXCLUSIVE:
+        if (!xdr_createverf3(xdrs, objp->createhow3_u.verf))
+            return (FALSE);
+        break;
+    default:
+        return (FALSE);
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_CREATE3args(register XDR *xdrs, CREATE3args *objp)
 {
-	if (!xdr_diropargs3(xdrs, &objp->where))
-		return (FALSE);
-	if (!xdr_createhow3(xdrs, &objp->how))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_diropargs3(xdrs, &objp->where))
+        return (FALSE);
+    if (!xdr_createhow3(xdrs, &objp->how))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_CREATE3resok(register XDR *xdrs, CREATE3resok *objp)
 {
-	if (!xdr_post_op_fh3(xdrs, &objp->obj))
-		return (FALSE);
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_fh3(xdrs, &objp->obj))
+        return (FALSE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_CREATE3resfail(register XDR *xdrs, CREATE3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_CREATE3res(register XDR *xdrs, CREATE3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_CREATE3resok(xdrs, &objp->CREATE3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_CREATE3resfail(xdrs, &objp->CREATE3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_CREATE3resok(xdrs, &objp->CREATE3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_CREATE3resfail(xdrs, &objp->CREATE3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_MKDIR3args(register XDR *xdrs, MKDIR3args *objp)
 {
-	if (!xdr_diropargs3(xdrs, &objp->where))
-		return (FALSE);
-	if (!xdr_sattr3(xdrs, &objp->attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_diropargs3(xdrs, &objp->where))
+        return (FALSE);
+    if (!xdr_sattr3(xdrs, &objp->attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_MKDIR3resok(register XDR *xdrs, MKDIR3resok *objp)
 {
-	if (!xdr_post_op_fh3(xdrs, &objp->obj))
-		return (FALSE);
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_fh3(xdrs, &objp->obj))
+        return (FALSE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_MKDIR3resfail(register XDR *xdrs, MKDIR3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_MKDIR3res(register XDR *xdrs, MKDIR3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_MKDIR3resok(xdrs, &objp->MKDIR3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_MKDIR3resfail(xdrs, &objp->MKDIR3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_MKDIR3resok(xdrs, &objp->MKDIR3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_MKDIR3resfail(xdrs, &objp->MKDIR3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_symlinkdata3(register XDR *xdrs, symlinkdata3 *objp)
 {
-	if (!xdr_sattr3(xdrs, &objp->symlink_attributes))
-		return (FALSE);
-	if (!xdr_nfspath3(xdrs, &objp->symlink_data))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_sattr3(xdrs, &objp->symlink_attributes))
+        return (FALSE);
+    if (!xdr_nfspath3(xdrs, &objp->symlink_data))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_SYMLINK3args(register XDR *xdrs, SYMLINK3args *objp)
 {
-	if (!xdr_diropargs3(xdrs, &objp->where))
-		return (FALSE);
-	if (!xdr_symlinkdata3(xdrs, &objp->symlink))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_diropargs3(xdrs, &objp->where))
+        return (FALSE);
+    if (!xdr_symlinkdata3(xdrs, &objp->symlink))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_SYMLINK3resok(register XDR *xdrs, SYMLINK3resok *objp)
 {
-	if (!xdr_post_op_fh3(xdrs, &objp->obj))
-		return (FALSE);
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_fh3(xdrs, &objp->obj))
+        return (FALSE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_SYMLINK3resfail(register XDR *xdrs, SYMLINK3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_SYMLINK3res(register XDR *xdrs, SYMLINK3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_SYMLINK3resok(xdrs, &objp->SYMLINK3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_SYMLINK3resfail(xdrs, &objp->SYMLINK3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_SYMLINK3resok(xdrs, &objp->SYMLINK3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_SYMLINK3resfail(xdrs, &objp->SYMLINK3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_devicedata3(register XDR *xdrs, devicedata3 *objp)
 {
-	if (!xdr_sattr3(xdrs, &objp->dev_attributes))
-		return (FALSE);
-	if (!xdr_specdata3(xdrs, &objp->spec))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_sattr3(xdrs, &objp->dev_attributes))
+        return (FALSE);
+    if (!xdr_specdata3(xdrs, &objp->spec))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_mknoddata3(register XDR *xdrs, mknoddata3 *objp)
 {
-	if (!xdr_ftype3(xdrs, &objp->type))
-		return (FALSE);
-	switch (objp->type) {
-	case NFS3CHR:
-	case NFS3BLK:
-		if (!xdr_devicedata3(xdrs, &objp->mknoddata3_u.device))
-			return (FALSE);
-		break;
-	case NFS3SOCK:
-	case NFS3FIFO:
-		if (!xdr_sattr3(xdrs, &objp->mknoddata3_u.pipe_attributes))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_ftype3(xdrs, &objp->type))
+        return (FALSE);
+    switch (objp->type) {
+    case NFS3CHR:
+    case NFS3BLK:
+        if (!xdr_devicedata3(xdrs, &objp->mknoddata3_u.device))
+            return (FALSE);
+        break;
+    case NFS3SOCK:
+    case NFS3FIFO:
+        if (!xdr_sattr3(xdrs, &objp->mknoddata3_u.pipe_attributes))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_MKNOD3args(register XDR *xdrs, MKNOD3args *objp)
 {
-	if (!xdr_diropargs3(xdrs, &objp->where))
-		return (FALSE);
-	if (!xdr_mknoddata3(xdrs, &objp->what))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_diropargs3(xdrs, &objp->where))
+        return (FALSE);
+    if (!xdr_mknoddata3(xdrs, &objp->what))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_MKNOD3resok(register XDR *xdrs, MKNOD3resok *objp)
 {
-	if (!xdr_post_op_fh3(xdrs, &objp->obj))
-		return (FALSE);
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_fh3(xdrs, &objp->obj))
+        return (FALSE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_MKNOD3resfail(register XDR *xdrs, MKNOD3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_MKNOD3res(register XDR *xdrs, MKNOD3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_MKNOD3resok(xdrs, &objp->MKNOD3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_MKNOD3resfail(xdrs, &objp->MKNOD3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_MKNOD3resok(xdrs, &objp->MKNOD3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_MKNOD3resfail(xdrs, &objp->MKNOD3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_REMOVE3args(register XDR *xdrs, REMOVE3args *objp)
 {
-	if (!xdr_diropargs3(xdrs, &objp->object))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_diropargs3(xdrs, &objp->object))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_REMOVE3resok(register XDR *xdrs, REMOVE3resok *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_REMOVE3resfail(register XDR *xdrs, REMOVE3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_REMOVE3res(register XDR *xdrs, REMOVE3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_REMOVE3resok(xdrs, &objp->REMOVE3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_REMOVE3resfail(xdrs, &objp->REMOVE3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_REMOVE3resok(xdrs, &objp->REMOVE3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_REMOVE3resfail(xdrs, &objp->REMOVE3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_RMDIR3args(register XDR *xdrs, RMDIR3args *objp)
 {
-	if (!xdr_diropargs3(xdrs, &objp->object))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_diropargs3(xdrs, &objp->object))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_RMDIR3resok(register XDR *xdrs, RMDIR3resok *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_RMDIR3resfail(register XDR *xdrs, RMDIR3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->dir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_RMDIR3res(register XDR *xdrs, RMDIR3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_RMDIR3resok(xdrs, &objp->RMDIR3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_RMDIR3resfail(xdrs, &objp->RMDIR3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_RMDIR3resok(xdrs, &objp->RMDIR3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_RMDIR3resfail(xdrs, &objp->RMDIR3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_RENAME3args(register XDR *xdrs, RENAME3args *objp)
 {
-	if (!xdr_diropargs3(xdrs, &objp->from))
-		return (FALSE);
-	if (!xdr_diropargs3(xdrs, &objp->to))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_diropargs3(xdrs, &objp->from))
+        return (FALSE);
+    if (!xdr_diropargs3(xdrs, &objp->to))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_RENAME3resok(register XDR *xdrs, RENAME3resok *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->fromdir_wcc))
-		return (FALSE);
-	if (!xdr_wcc_data(xdrs, &objp->todir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->fromdir_wcc))
+        return (FALSE);
+    if (!xdr_wcc_data(xdrs, &objp->todir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_RENAME3resfail(register XDR *xdrs, RENAME3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->fromdir_wcc))
-		return (FALSE);
-	if (!xdr_wcc_data(xdrs, &objp->todir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->fromdir_wcc))
+        return (FALSE);
+    if (!xdr_wcc_data(xdrs, &objp->todir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_RENAME3res(register XDR *xdrs, RENAME3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_RENAME3resok(xdrs, &objp->RENAME3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_RENAME3resfail(xdrs, &objp->RENAME3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_RENAME3resok(xdrs, &objp->RENAME3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_RENAME3resfail(xdrs, &objp->RENAME3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_LINK3args(register XDR *xdrs, LINK3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->file))
-		return (FALSE);
-	if (!xdr_diropargs3(xdrs, &objp->link))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->file))
+        return (FALSE);
+    if (!xdr_diropargs3(xdrs, &objp->link))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_LINK3resok(register XDR *xdrs, LINK3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->file_attributes))
-		return (FALSE);
-	if (!xdr_wcc_data(xdrs, &objp->linkdir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->file_attributes))
+        return (FALSE);
+    if (!xdr_wcc_data(xdrs, &objp->linkdir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_LINK3resfail(register XDR *xdrs, LINK3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->file_attributes))
-		return (FALSE);
-	if (!xdr_wcc_data(xdrs, &objp->linkdir_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->file_attributes))
+        return (FALSE);
+    if (!xdr_wcc_data(xdrs, &objp->linkdir_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_LINK3res(register XDR *xdrs, LINK3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_LINK3resok(xdrs, &objp->LINK3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_LINK3resfail(xdrs, &objp->LINK3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_LINK3resok(xdrs, &objp->LINK3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_LINK3resfail(xdrs, &objp->LINK3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_READDIR3args(register XDR *xdrs, READDIR3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->dir))
-		return (FALSE);
-	if (!xdr_cookie3(xdrs, &objp->cookie))
-		return (FALSE);
-	if (!xdr_cookieverf3(xdrs, objp->cookieverf))
-		return (FALSE);
-	if (!xdr_count3(xdrs, &objp->count))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->dir))
+        return (FALSE);
+    if (!xdr_cookie3(xdrs, &objp->cookie))
+        return (FALSE);
+    if (!xdr_cookieverf3(xdrs, objp->cookieverf))
+        return (FALSE);
+    if (!xdr_count3(xdrs, &objp->count))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_entry3(register XDR *xdrs, entry3 *objp)
 {
-	if (!xdr_fileid3(xdrs, &objp->fileid))
-		return (FALSE);
-	if (!xdr_filename3(xdrs, &objp->name))
-		return (FALSE);
-	if (!xdr_cookie3(xdrs, &objp->cookie))
-		return (FALSE);
-	if (!xdr_pointer(xdrs, (char **)&objp->nextentry, sizeof (entry3), (xdrproc_t) xdr_entry3))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_fileid3(xdrs, &objp->fileid))
+        return (FALSE);
+    if (!xdr_filename3(xdrs, &objp->name))
+        return (FALSE);
+    if (!xdr_cookie3(xdrs, &objp->cookie))
+        return (FALSE);
+    if (!xdr_pointer(xdrs, (char **)&objp->nextentry, sizeof (entry3), (xdrproc_t) xdr_entry3))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_dirlist3(register XDR *xdrs, dirlist3 *objp)
 {
-	if (!xdr_pointer(xdrs, (char **)&objp->entries, sizeof (entry3), (xdrproc_t) xdr_entry3))
-		return (FALSE);
-	if (!xdr_bool(xdrs, &objp->eof))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_pointer(xdrs, (char **)&objp->entries, sizeof (entry3), (xdrproc_t) xdr_entry3))
+        return (FALSE);
+    if (!xdr_bool(xdrs, &objp->eof))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READDIR3resok(register XDR *xdrs, READDIR3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
-		return (FALSE);
-	if (!xdr_cookieverf3(xdrs, objp->cookieverf))
-		return (FALSE);
-	if (!xdr_dirlist3(xdrs, &objp->reply))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
+        return (FALSE);
+    if (!xdr_cookieverf3(xdrs, objp->cookieverf))
+        return (FALSE);
+    if (!xdr_dirlist3(xdrs, &objp->reply))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READDIR3resfail(register XDR *xdrs, READDIR3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READDIR3res(register XDR *xdrs, READDIR3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_READDIR3resok(xdrs, &objp->READDIR3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_READDIR3resfail(xdrs, &objp->READDIR3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_READDIR3resok(xdrs, &objp->READDIR3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_READDIR3resfail(xdrs, &objp->READDIR3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_READDIRPLUS3args(register XDR *xdrs, READDIRPLUS3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->dir))
-		return (FALSE);
-	if (!xdr_cookie3(xdrs, &objp->cookie))
-		return (FALSE);
-	if (!xdr_cookieverf3(xdrs, objp->cookieverf))
-		return (FALSE);
-	if (!xdr_count3(xdrs, &objp->dircount))
-		return (FALSE);
-	if (!xdr_count3(xdrs, &objp->maxcount))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->dir))
+        return (FALSE);
+    if (!xdr_cookie3(xdrs, &objp->cookie))
+        return (FALSE);
+    if (!xdr_cookieverf3(xdrs, objp->cookieverf))
+        return (FALSE);
+    if (!xdr_count3(xdrs, &objp->dircount))
+        return (FALSE);
+    if (!xdr_count3(xdrs, &objp->maxcount))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_entryplus3(register XDR *xdrs, entryplus3 *objp)
 {
-	if (!xdr_fileid3(xdrs, &objp->fileid))
-		return (FALSE);
-	if (!xdr_filename3(xdrs, &objp->name))
-		return (FALSE);
-	if (!xdr_cookie3(xdrs, &objp->cookie))
-		return (FALSE);
-	if (!xdr_post_op_attr(xdrs, &objp->name_attributes))
-		return (FALSE);
-	if (!xdr_post_op_fh3(xdrs, &objp->name_handle))
-		return (FALSE);
-	if (!xdr_pointer(xdrs, (char **)&objp->nextentry, sizeof (entryplus3), (xdrproc_t) xdr_entryplus3))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_fileid3(xdrs, &objp->fileid))
+        return (FALSE);
+    if (!xdr_filename3(xdrs, &objp->name))
+        return (FALSE);
+    if (!xdr_cookie3(xdrs, &objp->cookie))
+        return (FALSE);
+    if (!xdr_post_op_attr(xdrs, &objp->name_attributes))
+        return (FALSE);
+    if (!xdr_post_op_fh3(xdrs, &objp->name_handle))
+        return (FALSE);
+    if (!xdr_pointer(xdrs, (char **)&objp->nextentry, sizeof (entryplus3), (xdrproc_t) xdr_entryplus3))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_dirlistplus3(register XDR *xdrs, dirlistplus3 *objp)
 {
-	if (!xdr_pointer(xdrs, (char **)&objp->entries, sizeof (entryplus3), (xdrproc_t) xdr_entryplus3))
-		return (FALSE);
-	if (!xdr_bool(xdrs, &objp->eof))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_pointer(xdrs, (char **)&objp->entries, sizeof (entryplus3), (xdrproc_t) xdr_entryplus3))
+        return (FALSE);
+    if (!xdr_bool(xdrs, &objp->eof))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READDIRPLUS3resok(register XDR *xdrs, READDIRPLUS3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
-		return (FALSE);
-	if (!xdr_cookieverf3(xdrs, objp->cookieverf))
-		return (FALSE);
-	if (!xdr_dirlistplus3(xdrs, &objp->reply))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
+        return (FALSE);
+    if (!xdr_cookieverf3(xdrs, objp->cookieverf))
+        return (FALSE);
+    if (!xdr_dirlistplus3(xdrs, &objp->reply))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READDIRPLUS3resfail(register XDR *xdrs, READDIRPLUS3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->dir_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_READDIRPLUS3res(register XDR *xdrs, READDIRPLUS3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_READDIRPLUS3resok(xdrs, &objp->READDIRPLUS3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_READDIRPLUS3resfail(xdrs, &objp->READDIRPLUS3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_READDIRPLUS3resok(xdrs, &objp->READDIRPLUS3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_READDIRPLUS3resfail(xdrs, &objp->READDIRPLUS3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_FSSTAT3args(register XDR *xdrs, FSSTAT3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->fsroot))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->fsroot))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_FSSTAT3resok(register XDR *xdrs, FSSTAT3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->tbytes))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->fbytes))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->abytes))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->tfiles))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->ffiles))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->afiles))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->invarsec))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->tbytes))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->fbytes))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->abytes))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->tfiles))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->ffiles))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->afiles))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->invarsec))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_FSSTAT3resfail(register XDR *xdrs, FSSTAT3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_FSSTAT3res(register XDR *xdrs, FSSTAT3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_FSSTAT3resok(xdrs, &objp->FSSTAT3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_FSSTAT3resfail(xdrs, &objp->FSSTAT3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_FSSTAT3resok(xdrs, &objp->FSSTAT3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_FSSTAT3resfail(xdrs, &objp->FSSTAT3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_FSINFO3args(register XDR *xdrs, FSINFO3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->fsroot))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->fsroot))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_FSINFO3resok(register XDR *xdrs, FSINFO3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->rtmax))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->rtpref))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->rtmult))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->wtmax))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->wtpref))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->wtmult))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->dtpref))
-		return (FALSE);
-	if (!xdr_size3(xdrs, &objp->maxfilesize))
-		return (FALSE);
-	if (!xdr_nfstime3(xdrs, &objp->time_delta))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->properties))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->rtmax))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->rtpref))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->rtmult))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->wtmax))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->wtpref))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->wtmult))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->dtpref))
+        return (FALSE);
+    if (!xdr_size3(xdrs, &objp->maxfilesize))
+        return (FALSE);
+    if (!xdr_nfstime3(xdrs, &objp->time_delta))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->properties))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_FSINFO3resfail(register XDR *xdrs, FSINFO3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_FSINFO3res(register XDR *xdrs, FSINFO3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_FSINFO3resok(xdrs, &objp->FSINFO3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_FSINFO3resfail(xdrs, &objp->FSINFO3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_FSINFO3resok(xdrs, &objp->FSINFO3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_FSINFO3resfail(xdrs, &objp->FSINFO3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_PATHCONF3args(register XDR *xdrs, PATHCONF3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->object))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->object))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_PATHCONF3resok(register XDR *xdrs, PATHCONF3resok *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->linkmax))
-		return (FALSE);
-	if (!xdr_uint32(xdrs, &objp->name_max))
-		return (FALSE);
-	if (!xdr_bool(xdrs, &objp->no_trunc))
-		return (FALSE);
-	if (!xdr_bool(xdrs, &objp->chown_restricted))
-		return (FALSE);
-	if (!xdr_bool(xdrs, &objp->case_insensitive))
-		return (FALSE);
-	if (!xdr_bool(xdrs, &objp->case_preserving))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->linkmax))
+        return (FALSE);
+    if (!xdr_uint32(xdrs, &objp->name_max))
+        return (FALSE);
+    if (!xdr_bool(xdrs, &objp->no_trunc))
+        return (FALSE);
+    if (!xdr_bool(xdrs, &objp->chown_restricted))
+        return (FALSE);
+    if (!xdr_bool(xdrs, &objp->case_insensitive))
+        return (FALSE);
+    if (!xdr_bool(xdrs, &objp->case_preserving))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_PATHCONF3resfail(register XDR *xdrs, PATHCONF3resfail *objp)
 {
-	if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_post_op_attr(xdrs, &objp->obj_attributes))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_PATHCONF3res(register XDR *xdrs, PATHCONF3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_PATHCONF3resok(xdrs, &objp->PATHCONF3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_PATHCONF3resfail(xdrs, &objp->PATHCONF3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_PATHCONF3resok(xdrs, &objp->PATHCONF3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_PATHCONF3resfail(xdrs, &objp->PATHCONF3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
 
 bool_t
 xdr_COMMIT3args(register XDR *xdrs, COMMIT3args *objp)
 {
-	if (!xdr_nfs_fh3(xdrs, &objp->file))
-		return (FALSE);
-	if (!xdr_offset3(xdrs, &objp->offset))
-		return (FALSE);
-	if (!xdr_count3(xdrs, &objp->count))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_nfs_fh3(xdrs, &objp->file))
+        return (FALSE);
+    if (!xdr_offset3(xdrs, &objp->offset))
+        return (FALSE);
+    if (!xdr_count3(xdrs, &objp->count))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_COMMIT3resok(register XDR *xdrs, COMMIT3resok *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->file_wcc))
-		return (FALSE);
-	if (!xdr_writeverf3(xdrs, objp->verf))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->file_wcc))
+        return (FALSE);
+    if (!xdr_writeverf3(xdrs, objp->verf))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_COMMIT3resfail(register XDR *xdrs, COMMIT3resfail *objp)
 {
-	if (!xdr_wcc_data(xdrs, &objp->file_wcc))
-		return (FALSE);
-	return (TRUE);
+    if (!xdr_wcc_data(xdrs, &objp->file_wcc))
+        return (FALSE);
+    return (TRUE);
 }
 
 bool_t
 xdr_COMMIT3res(register XDR *xdrs, COMMIT3res *objp)
 {
-	if (!xdr_nfsstat3(xdrs, &objp->status))
-		return (FALSE);
-	switch (objp->status) {
-	case NFS3_OK:
-		if (!xdr_COMMIT3resok(xdrs, &objp->COMMIT3res_u.resok))
-			return (FALSE);
-		break;
-	default:
-		if (!xdr_COMMIT3resfail(xdrs, &objp->COMMIT3res_u.resfail))
-			return (FALSE);
-		break;
-	}
-	return (TRUE);
+    if (!xdr_nfsstat3(xdrs, &objp->status))
+        return (FALSE);
+    switch (objp->status) {
+    case NFS3_OK:
+        if (!xdr_COMMIT3resok(xdrs, &objp->COMMIT3res_u.resok))
+            return (FALSE);
+        break;
+    default:
+        if (!xdr_COMMIT3resfail(xdrs, &objp->COMMIT3res_u.resfail))
+            return (FALSE);
+        break;
+    }
+    return (TRUE);
 }
diff --git a/components/dfs/filesystems/nfs/rpc/auth.h b/components/dfs/filesystems/nfs/rpc/auth.h
index f7dd76c237..0dc947a887 100644
--- a/components/dfs/filesystems/nfs/rpc/auth.h
+++ b/components/dfs/filesystems/nfs/rpc/auth.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -15,28 +15,28 @@
  * Status returned from authentication check
  */
 enum auth_stat {
-	AUTH_OK=0,
-	/*
-	 * failed at remote end
-	 */
-	AUTH_BADCRED=1,			/* bogus credentials (seal broken) */
-	AUTH_REJECTEDCRED=2,		/* client should begin new session */
-	AUTH_BADVERF=3,			/* bogus verifier (seal broken) */
-	AUTH_REJECTEDVERF=4,		/* verifier expired or was replayed */
-	AUTH_TOOWEAK=5,			/* rejected due to security reasons */
-	/*
-	 * failed locally
-	*/
-	AUTH_INVALIDRESP=6,		/* bogus response verifier */
-	AUTH_FAILED=7			/* some unknown reason */
+    AUTH_OK=0,
+    /*
+     * failed at remote end
+     */
+    AUTH_BADCRED=1,         /* bogus credentials (seal broken) */
+    AUTH_REJECTEDCRED=2,        /* client should begin new session */
+    AUTH_BADVERF=3,         /* bogus verifier (seal broken) */
+    AUTH_REJECTEDVERF=4,        /* verifier expired or was replayed */
+    AUTH_TOOWEAK=5,         /* rejected due to security reasons */
+    /*
+     * failed locally
+    */
+    AUTH_INVALIDRESP=6,     /* bogus response verifier */
+    AUTH_FAILED=7           /* some unknown reason */
 };
 
 union des_block {
-	struct {
-		uint32_t high;
-		uint32_t low;
-	} key;
-	char c[8];
+    struct {
+        uint32_t high;
+        uint32_t low;
+    } key;
+    char c[8];
 };
 typedef union des_block des_block;
 
@@ -44,9 +44,9 @@ typedef union des_block des_block;
  * Authentication info.  Opaque to client.
  */
 struct opaque_auth {
-	enum_t	oa_flavor;		/* flavor of auth */
-	char*	oa_base;		/* address of more auth stuff */
-	unsigned int	oa_length;		/* not to exceed MAX_AUTH_BYTES */
+    enum_t  oa_flavor;      /* flavor of auth */
+    char*   oa_base;        /* address of more auth stuff */
+    unsigned int    oa_length;      /* not to exceed MAX_AUTH_BYTES */
 };
 
 /*
@@ -59,11 +59,11 @@ struct AUTH {
   union des_block ah_key;
   struct auth_ops {
     void (*ah_nextverf) (AUTH *);
-    int  (*ah_marshal) (AUTH *, XDR *);		/* nextverf & serialize */
+    int  (*ah_marshal) (AUTH *, XDR *);     /* nextverf & serialize */
     int  (*ah_validate) (AUTH *, struct opaque_auth *);
-						/* validate verifier */
-    int  (*ah_refresh) (AUTH *);		/* refresh credentials */
-    void (*ah_destroy) (AUTH *); 	    	/* destroy this structure */
+                        /* validate verifier */
+    int  (*ah_refresh) (AUTH *);        /* refresh credentials */
+    void (*ah_destroy) (AUTH *);            /* destroy this structure */
   } *ah_ops;
   char* ah_private;
 };
@@ -75,37 +75,37 @@ extern struct opaque_auth _null_auth;
  * Authentication ops.
  * The ops and the auth handle provide the interface to the authenticators.
  *
- * AUTH	*auth;
- * XDR	*xdrs;
+ * AUTH *auth;
+ * XDR  *xdrs;
  * struct opaque_auth verf;
  */
-#define AUTH_NEXTVERF(auth)		\
-		((*((auth)->ah_ops->ah_nextverf))(auth))
-#define auth_nextverf(auth)		\
-		((*((auth)->ah_ops->ah_nextverf))(auth))
+#define AUTH_NEXTVERF(auth)     \
+        ((*((auth)->ah_ops->ah_nextverf))(auth))
+#define auth_nextverf(auth)     \
+        ((*((auth)->ah_ops->ah_nextverf))(auth))
 
-#define AUTH_MARSHALL(auth, xdrs)	\
-		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
-#define auth_marshall(auth, xdrs)	\
-		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
+#define AUTH_MARSHALL(auth, xdrs)   \
+        ((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
+#define auth_marshall(auth, xdrs)   \
+        ((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
 
-#define AUTH_VALIDATE(auth, verfp)	\
-		((*((auth)->ah_ops->ah_validate))((auth), verfp))
-#define auth_validate(auth, verfp)	\
-		((*((auth)->ah_ops->ah_validate))((auth), verfp))
+#define AUTH_VALIDATE(auth, verfp)  \
+        ((*((auth)->ah_ops->ah_validate))((auth), verfp))
+#define auth_validate(auth, verfp)  \
+        ((*((auth)->ah_ops->ah_validate))((auth), verfp))
 
-#define AUTH_REFRESH(auth)		\
-		((*((auth)->ah_ops->ah_refresh))(auth))
-#define auth_refresh(auth)		\
-		((*((auth)->ah_ops->ah_refresh))(auth))
+#define AUTH_REFRESH(auth)      \
+        ((*((auth)->ah_ops->ah_refresh))(auth))
+#define auth_refresh(auth)      \
+        ((*((auth)->ah_ops->ah_refresh))(auth))
 
-#define AUTH_DESTROY(auth)		\
-		((*((auth)->ah_ops->ah_destroy))(auth))
-#define auth_destroy(auth)		\
-		((*((auth)->ah_ops->ah_destroy))(auth))
+#define AUTH_DESTROY(auth)      \
+        ((*((auth)->ah_ops->ah_destroy))(auth))
+#define auth_destroy(auth)      \
+        ((*((auth)->ah_ops->ah_destroy))(auth))
 
-#define MAX_AUTH_BYTES	400
-#define MAXNETNAMELEN	255	/* maximum length of network user's name */
+#define MAX_AUTH_BYTES  400
+#define MAXNETNAMELEN   255 /* maximum length of network user's name */
 
 AUTH *authnone_create(void);
 
diff --git a/components/dfs/filesystems/nfs/rpc/auth_none.c b/components/dfs/filesystems/nfs/rpc/auth_none.c
index 9f5ad05002..7e22e7d864 100644
--- a/components/dfs/filesystems/nfs/rpc/auth_none.c
+++ b/components/dfs/filesystems/nfs/rpc/auth_none.c
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-/* @(#)auth_none.c	2.1 88/07/29 4.0 RPCSRC */
+/* @(#)auth_none.c  2.1 88/07/29 4.0 RPCSRC */
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
@@ -14,23 +14,23 @@
  * may copy or modify Sun RPC without charge, but are not authorized
  * to license or distribute it to anyone else except as part of a product or
  * program developed by the user.
- * 
+ *
  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- * 
+ *
  * Sun RPC is provided with no support and without any obligation on the
  * part of Sun Microsystems, Inc. to assist in its use, correction,
  * modification or enhancement.
- * 
+ *
  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  * OR ANY PART THEREOF.
- * 
+ *
  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  * or profits or other special, indirect and consequential damages, even if
  * Sun has been advised of the possibility of such damages.
- * 
+ *
  * Sun Microsystems, Inc.
  * 2550 Garcia Avenue
  * Mountain View, California  94043
@@ -38,15 +38,15 @@
 #if !defined(lint) && defined(SCCSIDS)
 static char sccsid[] =
 
-	"@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";
+    "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";
 #endif
 
 /*
  * auth_none.c
- * Creates a client authentication handle for passing "null" 
- * credentials and verifiers to remote systems. 
- * 
- * Copyright (C) 1984, Sun Microsystems, Inc. 
+ * Creates a client authentication handle for passing "null"
+ * credentials and verifiers to remote systems.
+ *
+ * Copyright (C) 1984, Sun Microsystems, Inc.
  */
 
 #include <rpc/types.h>
@@ -63,55 +63,55 @@ static bool_t authnone_marshal(AUTH *client, XDR *xdrs);
 struct opaque_auth _null_auth;
 
 static struct auth_ops ops = {
-	authnone_verf,
-	authnone_marshal,
-	authnone_validate,
-	authnone_refresh,
-	authnone_destroy
+    authnone_verf,
+    authnone_marshal,
+    authnone_validate,
+    authnone_refresh,
+    authnone_destroy
 };
 
 static struct authnone_private {
-	AUTH no_client;
-	char marshalled_client[MAX_MARSHEL_SIZE];
-	unsigned int mcnt;
+    AUTH no_client;
+    char marshalled_client[MAX_MARSHEL_SIZE];
+    unsigned int mcnt;
 } *authnone_private;
 
 AUTH *authnone_create()
 {
-	register struct authnone_private *ap = authnone_private;
-	XDR xdr_stream;
-	register XDR *xdrs;
+    register struct authnone_private *ap = authnone_private;
+    XDR xdr_stream;
+    register XDR *xdrs;
     extern bool_t xdr_opaque_auth(XDR *xdrs, struct opaque_auth *ap);
 
-	if (ap == 0) {
-		ap = (struct authnone_private *) rt_malloc (sizeof(*ap));
-		if (ap == 0) return NULL;
-		memset(ap, 0, sizeof(*ap));
-		authnone_private = ap;
-	}
-	if (!ap->mcnt) {
-		ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
-		ap->no_client.ah_ops = &ops;
-		xdrs = &xdr_stream;
-		xdrmem_create(xdrs, ap->marshalled_client,
-					  (unsigned int) MAX_MARSHEL_SIZE, XDR_ENCODE);
-		(void) xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
-		(void) xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
-		ap->mcnt = XDR_GETPOS(xdrs);
-		XDR_DESTROY(xdrs);
-	}
-	return (&ap->no_client);
+    if (ap == 0) {
+        ap = (struct authnone_private *) rt_malloc (sizeof(*ap));
+        if (ap == 0) return NULL;
+        memset(ap, 0, sizeof(*ap));
+        authnone_private = ap;
+    }
+    if (!ap->mcnt) {
+        ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
+        ap->no_client.ah_ops = &ops;
+        xdrs = &xdr_stream;
+        xdrmem_create(xdrs, ap->marshalled_client,
+                      (unsigned int) MAX_MARSHEL_SIZE, XDR_ENCODE);
+        (void) xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
+        (void) xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
+        ap->mcnt = XDR_GETPOS(xdrs);
+        XDR_DESTROY(xdrs);
+    }
+    return (&ap->no_client);
 }
 
-/*ARGSUSED*/ 
+/*ARGSUSED*/
 static bool_t authnone_marshal(AUTH *client, XDR *xdrs)
 {
-	register struct authnone_private *ap = authnone_private;
+    register struct authnone_private *ap = authnone_private;
 
-	if (ap == 0)
-		return (0);
-	return ((*xdrs->x_ops->x_putbytes) (xdrs,
-										ap->marshalled_client, ap->mcnt));
+    if (ap == 0)
+        return (0);
+    return ((*xdrs->x_ops->x_putbytes) (xdrs,
+                                        ap->marshalled_client, ap->mcnt));
 }
 
 static void authnone_verf(AUTH *x)
@@ -121,13 +121,13 @@ static void authnone_verf(AUTH *x)
 static bool_t authnone_validate(AUTH *x, struct opaque_auth *x1)
 {
 
-	return (TRUE);
+    return (TRUE);
 }
 
 static bool_t authnone_refresh(AUTH *x)
 {
 
-	return (FALSE);
+    return (FALSE);
 }
 
 static void authnone_destroy(AUTH *x)
diff --git a/components/dfs/filesystems/nfs/rpc/clnt.h b/components/dfs/filesystems/nfs/rpc/clnt.h
index e86f8be789..1d27dee359 100644
--- a/components/dfs/filesystems/nfs/rpc/clnt.h
+++ b/components/dfs/filesystems/nfs/rpc/clnt.h
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-/* @(#)clnt.h	2.1 88/07/29 4.0 RPCSRC; from 1.31 88/02/08 SMI*/
+/* @(#)clnt.h   2.1 88/07/29 4.0 RPCSRC; from 1.31 88/02/08 SMI*/
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
@@ -43,7 +43,7 @@
  */
 
 #ifndef _RPC_CLNT_H
-#define _RPC_CLNT_H	1
+#define _RPC_CLNT_H 1
 
 #include <rpc/types.h>
 #include <rpc/auth.h>
@@ -55,47 +55,47 @@
  * independent) list of errors.
  */
 enum clnt_stat {
-	RPC_SUCCESS=0,			/* call succeeded */
-	/*
-	 * local errors
-	 */
-	RPC_CANTENCODEARGS=1,		/* can't encode arguments */
-	RPC_CANTDECODERES=2,		/* can't decode results */
-	RPC_CANTSEND=3,			/* failure in sending call */
-	RPC_CANTRECV=4,			/* failure in receiving result */
-	RPC_TIMEDOUT=5,			/* call timed out */
-	/*
-	 * remote errors
-	 */
-	RPC_VERSMISMATCH=6,		/* rpc versions not compatible */
-	RPC_AUTHERROR=7,		/* authentication error */
-	RPC_PROGUNAVAIL=8,		/* program not available */
-	RPC_PROGVERSMISMATCH=9,		/* program version mismatched */
-	RPC_PROCUNAVAIL=10,		/* procedure unavailable */
-	RPC_CANTDECODEARGS=11,		/* decode arguments error */
-	RPC_SYSTEMERROR=12,		/* generic "other problem" */
-	RPC_NOBROADCAST = 21,		/* Broadcasting not supported */
-	/*
-	 * callrpc & clnt_create errors
-	 */
-	RPC_UNKNOWNHOST=13,		/* unknown host name */
-	RPC_UNKNOWNPROTO=17,		/* unknown protocol */
-	RPC_UNKNOWNADDR = 19,		/* Remote address unknown */
+    RPC_SUCCESS=0,          /* call succeeded */
+    /*
+     * local errors
+     */
+    RPC_CANTENCODEARGS=1,       /* can't encode arguments */
+    RPC_CANTDECODERES=2,        /* can't decode results */
+    RPC_CANTSEND=3,         /* failure in sending call */
+    RPC_CANTRECV=4,         /* failure in receiving result */
+    RPC_TIMEDOUT=5,         /* call timed out */
+    /*
+     * remote errors
+     */
+    RPC_VERSMISMATCH=6,     /* rpc versions not compatible */
+    RPC_AUTHERROR=7,        /* authentication error */
+    RPC_PROGUNAVAIL=8,      /* program not available */
+    RPC_PROGVERSMISMATCH=9,     /* program version mismatched */
+    RPC_PROCUNAVAIL=10,     /* procedure unavailable */
+    RPC_CANTDECODEARGS=11,      /* decode arguments error */
+    RPC_SYSTEMERROR=12,     /* generic "other problem" */
+    RPC_NOBROADCAST = 21,       /* Broadcasting not supported */
+    /*
+     * callrpc & clnt_create errors
+     */
+    RPC_UNKNOWNHOST=13,     /* unknown host name */
+    RPC_UNKNOWNPROTO=17,        /* unknown protocol */
+    RPC_UNKNOWNADDR = 19,       /* Remote address unknown */
 
-	/*
-	 * rpcbind errors
-	 */
-	RPC_RPCBFAILURE=14,		/* portmapper failed in its call */
+    /*
+     * rpcbind errors
+     */
+    RPC_RPCBFAILURE=14,     /* portmapper failed in its call */
 #define RPC_PMAPFAILURE RPC_RPCBFAILURE
-	RPC_PROGNOTREGISTERED=15,	/* remote program is not registered */
-	RPC_N2AXLATEFAILURE = 22,	/* Name to addr translation failed */
-	/*
-	 * unspecified error
-	 */
-	RPC_FAILED=16,
-	RPC_INTR=18,
-	RPC_TLIERROR=20,
-	RPC_UDERROR=23,
+    RPC_PROGNOTREGISTERED=15,   /* remote program is not registered */
+    RPC_N2AXLATEFAILURE = 22,   /* Name to addr translation failed */
+    /*
+     * unspecified error
+     */
+    RPC_FAILED=16,
+    RPC_INTR=18,
+    RPC_TLIERROR=20,
+    RPC_UDERROR=23,
         /*
          * asynchronous errors
          */
@@ -110,21 +110,21 @@ enum clnt_stat {
 struct rpc_err {
   int re_status;
   union {
-    int RE_errno;		/* related system error */
-    int RE_why;	/* why the auth error occurred */
+    int RE_errno;       /* related system error */
+    int RE_why; /* why the auth error occurred */
     struct {
-      unsigned long low;		/* lowest verion supported */
-      unsigned long high;		/* highest verion supported */
+      unsigned long low;        /* lowest verion supported */
+      unsigned long high;       /* highest verion supported */
     } RE_vers;
-    struct {			/* maybe meaningful if RPC_FAILED */
+    struct {            /* maybe meaningful if RPC_FAILED */
       long s1;
       long s2;
-    } RE_lb;			/* life boot & debugging only */
+    } RE_lb;            /* life boot & debugging only */
   } ru;
-#define	re_errno	ru.RE_errno
-#define	re_why		ru.RE_why
-#define	re_vers		ru.RE_vers
-#define	re_lb		ru.RE_lb
+#define re_errno    ru.RE_errno
+#define re_why      ru.RE_why
+#define re_vers     ru.RE_vers
+#define re_lb       ru.RE_lb
 };
 
 
@@ -135,21 +135,21 @@ struct rpc_err {
  */
 typedef struct CLIENT CLIENT;
 struct CLIENT {
-  AUTH	*cl_auth;		 /* authenticator */
+  AUTH  *cl_auth;        /* authenticator */
   struct clnt_ops {
     enum clnt_stat (*cl_call) (CLIENT *, unsigned long, xdrproc_t, char*, xdrproc_t,
-			       char*, struct timeval);
-			       	/* call remote procedure */
-    void (*cl_abort) (void);	/* abort a call */
+                   char*, struct timeval);
+                    /* call remote procedure */
+    void (*cl_abort) (void);    /* abort a call */
     void (*cl_geterr) (CLIENT *, struct rpc_err *);
-				/* get specific error code */
+                /* get specific error code */
     bool_t (*cl_freeres) (CLIENT *, xdrproc_t, char*);
-				/* frees results */
+                /* frees results */
     void (*cl_destroy) (CLIENT *); /* destroy this structure */
     bool_t (*cl_control) (CLIENT *, int, char *);
-				/* the ioctl() of rpc */
+                /* the ioctl() of rpc */
   } *cl_ops;
-  char* cl_private;		/* private stuff */
+  char* cl_private;     /* private stuff */
 };
 
 
@@ -163,45 +163,45 @@ struct CLIENT {
 /*
  * enum clnt_stat
  * CLNT_CALL(rh, proc, xargs, argsp, xres, resp, timeout)
- * 	CLIENT *rh;
- *	unsigned long proc;
- *	xdrproc_t xargs;
- *	char* argsp;
- *	xdrproc_t xres;
- *	char* resp;
- *	struct timeval timeout;
+ *  CLIENT *rh;
+ *  unsigned long proc;
+ *  xdrproc_t xargs;
+ *  char* argsp;
+ *  xdrproc_t xres;
+ *  char* resp;
+ *  struct timeval timeout;
  */
-#define	CLNT_CALL(rh, proc, xargs, argsp, xres, resp, secs)	\
-	((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, resp, secs))
-#define	clnt_call(rh, proc, xargs, argsp, xres, resp, secs)	\
-	((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, resp, secs))
+#define CLNT_CALL(rh, proc, xargs, argsp, xres, resp, secs) \
+    ((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, resp, secs))
+#define clnt_call(rh, proc, xargs, argsp, xres, resp, secs) \
+    ((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, resp, secs))
 
 /*
  * void
  * CLNT_ABORT(rh);
- * 	CLIENT *rh;
+ *  CLIENT *rh;
  */
-#define	CLNT_ABORT(rh)	((*(rh)->cl_ops->cl_abort)(rh))
-#define	clnt_abort(rh)	((*(rh)->cl_ops->cl_abort)(rh))
+#define CLNT_ABORT(rh)  ((*(rh)->cl_ops->cl_abort)(rh))
+#define clnt_abort(rh)  ((*(rh)->cl_ops->cl_abort)(rh))
 
 /*
  * struct rpc_err
  * CLNT_GETERR(rh);
- * 	CLIENT *rh;
+ *  CLIENT *rh;
  */
-#define	CLNT_GETERR(rh,errp)	((*(rh)->cl_ops->cl_geterr)(rh, errp))
-#define	clnt_geterr(rh,errp)	((*(rh)->cl_ops->cl_geterr)(rh, errp))
+#define CLNT_GETERR(rh,errp)    ((*(rh)->cl_ops->cl_geterr)(rh, errp))
+#define clnt_geterr(rh,errp)    ((*(rh)->cl_ops->cl_geterr)(rh, errp))
 
 
 /*
  * bool_t
  * CLNT_FREERES(rh, xres, resp);
- * 	CLIENT *rh;
- *	xdrproc_t xres;
- *	char* resp;
+ *  CLIENT *rh;
+ *  xdrproc_t xres;
+ *  char* resp;
  */
-#define	CLNT_FREERES(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,xres,resp))
-#define	clnt_freeres(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,xres,resp))
+#define CLNT_FREERES(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,xres,resp))
+#define clnt_freeres(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,xres,resp))
 
 /*
  * bool_t
@@ -210,8 +210,8 @@ struct CLIENT {
  *      unsigned int request;
  *      char *info;
  */
-#define	CLNT_CONTROL(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
-#define	clnt_control(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
+#define CLNT_CONTROL(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
+#define clnt_control(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
 
 /*
  * control operations that apply to all transports
@@ -239,16 +239,16 @@ struct CLIENT {
 /*
  * Connectionless only control operations
  */
-#define CLSET_RETRY_TIMEOUT	4	/* set retry timeout (timeval) */
-#define CLGET_RETRY_TIMEOUT	5	/* get retry timeout (timeval) */
+#define CLSET_RETRY_TIMEOUT 4   /* set retry timeout (timeval) */
+#define CLGET_RETRY_TIMEOUT 5   /* get retry timeout (timeval) */
 
 /*
  * void
  * CLNT_DESTROY(rh);
- * 	CLIENT *rh;
+ *  CLIENT *rh;
  */
-#define	CLNT_DESTROY(rh)	((*(rh)->cl_ops->cl_destroy)(rh))
-#define	clnt_destroy(rh)	((*(rh)->cl_ops->cl_destroy)(rh))
+#define CLNT_DESTROY(rh)    ((*(rh)->cl_ops->cl_destroy)(rh))
+#define clnt_destroy(rh)    ((*(rh)->cl_ops->cl_destroy)(rh))
 
 
 /*
@@ -257,10 +257,10 @@ struct CLIENT {
  * and network administration.
  */
 
-#define RPCTEST_PROGRAM		((unsigned long)1)
-#define RPCTEST_VERSION		((unsigned long)1)
-#define RPCTEST_NULL_PROC	((unsigned long)2)
-#define RPCTEST_NULL_BATCH_PROC	((unsigned long)3)
+#define RPCTEST_PROGRAM     ((unsigned long)1)
+#define RPCTEST_VERSION     ((unsigned long)1)
+#define RPCTEST_NULL_PROC   ((unsigned long)2)
+#define RPCTEST_NULL_BATCH_PROC ((unsigned long)3)
 
 /*
  * By convention, procedure 0 takes null arguments and returns them
@@ -279,51 +279,51 @@ struct CLIENT {
  * "unix"
  * CLIENT *
  * clnt_create(host, prog, vers, prot)
- *	char *host; 	-- hostname
- *	unsigned long prog;	-- program number
- *	u_ong vers;	-- version number
- *	char *prot;	-- protocol
+ *  char *host;     -- hostname
+ *  unsigned long prog; -- program number
+ *  u_ong vers; -- version number
+ *  char *prot; -- protocol
  */
 extern CLIENT *clnt_create (const char *__host, const unsigned long __prog,
-			    const unsigned long __vers, const char *__prot)
+                const unsigned long __vers, const char *__prot)
     ;
 
 /*
  * UDP based rpc.
  * CLIENT *
  * clntudp_create(raddr, program, version, wait, sockp)
- *	struct sockaddr_in *raddr;
- *	unsigned long program;
- *	unsigned long version;
- *	struct timeval wait_resend;
- *	int *sockp;
+ *  struct sockaddr_in *raddr;
+ *  unsigned long program;
+ *  unsigned long version;
+ *  struct timeval wait_resend;
+ *  int *sockp;
  *
  * Same as above, but you specify max packet sizes.
  * CLIENT *
  * clntudp_bufcreate(raddr, program, version, wait, sockp, sendsz, recvsz)
- *	struct sockaddr_in *raddr;
- *	unsigned long program;
- *	unsigned long version;
- *	struct timeval wait_resend;
- *	int *sockp;
- *	unsigned int sendsz;
- *	unsigned int recvsz;
+ *  struct sockaddr_in *raddr;
+ *  unsigned long program;
+ *  unsigned long version;
+ *  struct timeval wait_resend;
+ *  int *sockp;
+ *  unsigned int sendsz;
+ *  unsigned int recvsz;
  */
 extern CLIENT *clntudp_create (struct sockaddr_in *__raddr, unsigned long __program,
-			       unsigned long __version, struct timeval __wait_resend,
-			       int *__sockp);
+                   unsigned long __version, struct timeval __wait_resend,
+                   int *__sockp);
 extern CLIENT *clntudp_bufcreate (struct sockaddr_in *__raddr,
-				  unsigned long __program, unsigned long __version,
-				  struct timeval __wait_resend, int *__sockp,
-				  unsigned int __sendsz, unsigned int __recvsz);
+                  unsigned long __program, unsigned long __version,
+                  struct timeval __wait_resend, int *__sockp,
+                  unsigned int __sendsz, unsigned int __recvsz);
 
 extern int callrpc (const char *__host, const unsigned long __prognum,
-		    const unsigned long __versnum, const unsigned long __procnum,
-		    const xdrproc_t __inproc, const char *__in,
-		    const xdrproc_t __outproc, char *__out);
+            const unsigned long __versnum, const unsigned long __procnum,
+            const xdrproc_t __inproc, const char *__in,
+            const xdrproc_t __outproc, char *__out);
 
-#define UDPMSGSIZE	8800	/* rpc imposed limit on udp msg size */
-#define RPCSMALLMSGSIZE	400	/* a more reasonable packet size */
+#define UDPMSGSIZE  8800    /* rpc imposed limit on udp msg size */
+#define RPCSMALLMSGSIZE 400 /* a more reasonable packet size */
 
 void clnt_perror(CLIENT *rpch, const char *s);
 
diff --git a/components/dfs/filesystems/nfs/rpc/clnt_generic.c b/components/dfs/filesystems/nfs/rpc/clnt_generic.c
index bd241b5835..bbcd8011ef 100644
--- a/components/dfs/filesystems/nfs/rpc/clnt_generic.c
+++ b/components/dfs/filesystems/nfs/rpc/clnt_generic.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/nfs/rpc/clnt_udp.c b/components/dfs/filesystems/nfs/rpc/clnt_udp.c
index 6b4f7bfb13..17933539da 100644
--- a/components/dfs/filesystems/nfs/rpc/clnt_udp.c
+++ b/components/dfs/filesystems/nfs/rpc/clnt_udp.c
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-/* @(#)clnt_udp.c	2.2 88/08/01 4.0 RPCSRC */
+/* @(#)clnt_udp.c   2.2 88/08/01 4.0 RPCSRC */
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
@@ -53,12 +53,12 @@ static char sccsid[] = "@(#)clnt_udp.c 1.39 87/08/11 Copyr 1984 Sun Micro";
  * UDP bases client side rpc operations
  */
 static enum clnt_stat clntudp_call(register CLIENT *cl,         /* client handle */
-	unsigned long proc,          /* procedure number */
-	xdrproc_t xargs,             /* xdr routine for args */
-	char* argsp,                 /* pointer to args */
-	xdrproc_t xresults,          /* xdr routine for results */
-	char* resultsp,              /* pointer to results */
-	struct timeval utimeout);
+    unsigned long proc,          /* procedure number */
+    xdrproc_t xargs,             /* xdr routine for args */
+    char* argsp,                 /* pointer to args */
+    xdrproc_t xresults,          /* xdr routine for results */
+    char* resultsp,              /* pointer to results */
+    struct timeval utimeout);
 
 static void clntudp_abort(void);
 static void clntudp_geterr(CLIENT *, struct rpc_err *);
@@ -68,12 +68,12 @@ static void clntudp_destroy(CLIENT *);
 
 static struct clnt_ops udp_ops =
 {
-	clntudp_call,
-	clntudp_abort,
-	clntudp_geterr,
-	clntudp_freeres,
-	clntudp_destroy,
-	clntudp_control
+    clntudp_call,
+    clntudp_abort,
+    clntudp_geterr,
+    clntudp_freeres,
+    clntudp_destroy,
+    clntudp_control
 };
 
 /*
@@ -81,19 +81,19 @@ static struct clnt_ops udp_ops =
  */
 struct cu_data
 {
-	int cu_sock;
-	bool_t cu_closeit;
-	struct sockaddr_in cu_raddr;
-	int cu_rlen;
-	struct timeval cu_wait;
-	struct timeval cu_total;
-	struct rpc_err cu_error;
-	XDR cu_outxdrs;
-	unsigned int cu_xdrpos;
-	unsigned int cu_sendsz;
-	char *cu_outbuf;
-	unsigned int cu_recvsz;
-	char cu_inbuf[1];
+    int cu_sock;
+    bool_t cu_closeit;
+    struct sockaddr_in cu_raddr;
+    int cu_rlen;
+    struct timeval cu_wait;
+    struct timeval cu_total;
+    struct rpc_err cu_error;
+    XDR cu_outxdrs;
+    unsigned int cu_xdrpos;
+    unsigned int cu_sendsz;
+    char *cu_outbuf;
+    unsigned int cu_recvsz;
+    char cu_inbuf[1];
 };
 
 /*
@@ -112,241 +112,241 @@ struct cu_data
  * sendsz and recvsz are the maximum allowable packet sizes that can be
  * sent and received.
  */
-CLIENT *clntudp_bufcreate(struct sockaddr_in *raddr, 
-	unsigned long program, 
-	unsigned long version,
-	struct timeval wait, 
-	int *sockp, 
-	unsigned int sendsz,
-	unsigned int recvsz)
+CLIENT *clntudp_bufcreate(struct sockaddr_in *raddr,
+    unsigned long program,
+    unsigned long version,
+    struct timeval wait,
+    int *sockp,
+    unsigned int sendsz,
+    unsigned int recvsz)
 {
-	CLIENT *cl;
-	register struct cu_data *cu = NULL;
-	struct rpc_msg call_msg;
-	static int xid_count = 0;
+    CLIENT *cl;
+    register struct cu_data *cu = NULL;
+    struct rpc_msg call_msg;
+    static int xid_count = 0;
 
-	cl = (CLIENT *) rt_malloc (sizeof(CLIENT));
-	if (cl == NULL)
-	{
-		rt_kprintf("clntudp_create: out of memory\n");
-		goto fooy;
-	}
-	sendsz = ((sendsz + 3) / 4) * 4;
-	recvsz = ((recvsz + 3) / 4) * 4;
-	cu = (struct cu_data *) rt_malloc (sizeof(*cu) + sendsz + recvsz);
-	if (cu == NULL)
-	{
-		rt_kprintf("clntudp_create: out of memory\n");
-		goto fooy;
-	}
-	cu->cu_outbuf = &cu->cu_inbuf[recvsz];
+    cl = (CLIENT *) rt_malloc (sizeof(CLIENT));
+    if (cl == NULL)
+    {
+        rt_kprintf("clntudp_create: out of memory\n");
+        goto fooy;
+    }
+    sendsz = ((sendsz + 3) / 4) * 4;
+    recvsz = ((recvsz + 3) / 4) * 4;
+    cu = (struct cu_data *) rt_malloc (sizeof(*cu) + sendsz + recvsz);
+    if (cu == NULL)
+    {
+        rt_kprintf("clntudp_create: out of memory\n");
+        goto fooy;
+    }
+    cu->cu_outbuf = &cu->cu_inbuf[recvsz];
 
-	if (raddr->sin_port == 0) {
-		unsigned short port;
-		extern unsigned short pmap_getport(struct sockaddr_in *address, 
-			unsigned long program, 
-			unsigned long version, 
-			unsigned int protocol);
+    if (raddr->sin_port == 0) {
+        unsigned short port;
+        extern unsigned short pmap_getport(struct sockaddr_in *address,
+            unsigned long program,
+            unsigned long version,
+            unsigned int protocol);
 
-		if ((port =
-			 pmap_getport(raddr, program, version, IPPROTO_UDP)) == 0) {
-			goto fooy;
-		}
-		raddr->sin_port = htons(port);
-	}
+        if ((port =
+             pmap_getport(raddr, program, version, IPPROTO_UDP)) == 0) {
+            goto fooy;
+        }
+        raddr->sin_port = htons(port);
+    }
 
-	cl->cl_ops = &udp_ops;
-	cl->cl_private = (char*) cu;
-	cu->cu_raddr = *raddr;
-	cu->cu_rlen = sizeof(cu->cu_raddr);
-	cu->cu_wait = wait;
-	cu->cu_total.tv_sec = -1;
-	cu->cu_total.tv_usec = -1;
-	cu->cu_sendsz = sendsz;
-	cu->cu_recvsz = recvsz;
-	call_msg.rm_xid = ((unsigned long)rt_thread_self()) ^ ((unsigned long)rt_tick_get()) ^ (xid_count++);
-	call_msg.rm_direction = CALL;
-	call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
-	call_msg.rm_call.cb_prog = program;
-	call_msg.rm_call.cb_vers = version;
-	xdrmem_create(&(cu->cu_outxdrs), cu->cu_outbuf, sendsz, XDR_ENCODE);
-	if (!xdr_callhdr(&(cu->cu_outxdrs), &call_msg))
-	{
-		goto fooy;
-	}
-	cu->cu_xdrpos = XDR_GETPOS(&(cu->cu_outxdrs));
-	if (*sockp < 0)
-	{
-		*sockp = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
-		if (*sockp < 0)
-		{
-			rt_kprintf("create socket error\n");
-			goto fooy;
-		}
-		cu->cu_closeit = TRUE;
-	}
-	else
-	{
-		cu->cu_closeit = FALSE;
-	}
-	cu->cu_sock = *sockp;
-	cl->cl_auth = authnone_create();
-	return (cl);
+    cl->cl_ops = &udp_ops;
+    cl->cl_private = (char*) cu;
+    cu->cu_raddr = *raddr;
+    cu->cu_rlen = sizeof(cu->cu_raddr);
+    cu->cu_wait = wait;
+    cu->cu_total.tv_sec = -1;
+    cu->cu_total.tv_usec = -1;
+    cu->cu_sendsz = sendsz;
+    cu->cu_recvsz = recvsz;
+    call_msg.rm_xid = ((unsigned long)rt_thread_self()) ^ ((unsigned long)rt_tick_get()) ^ (xid_count++);
+    call_msg.rm_direction = CALL;
+    call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
+    call_msg.rm_call.cb_prog = program;
+    call_msg.rm_call.cb_vers = version;
+    xdrmem_create(&(cu->cu_outxdrs), cu->cu_outbuf, sendsz, XDR_ENCODE);
+    if (!xdr_callhdr(&(cu->cu_outxdrs), &call_msg))
+    {
+        goto fooy;
+    }
+    cu->cu_xdrpos = XDR_GETPOS(&(cu->cu_outxdrs));
+    if (*sockp < 0)
+    {
+        *sockp = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+        if (*sockp < 0)
+        {
+            rt_kprintf("create socket error\n");
+            goto fooy;
+        }
+        cu->cu_closeit = TRUE;
+    }
+    else
+    {
+        cu->cu_closeit = FALSE;
+    }
+    cu->cu_sock = *sockp;
+    cl->cl_auth = authnone_create();
+    return (cl);
 
 fooy:
-	if (cu) rt_free(cu);
-	if (cl) rt_free(cl);
+    if (cu) rt_free(cu);
+    if (cl) rt_free(cl);
 
-	return ((CLIENT *) NULL);
+    return ((CLIENT *) NULL);
 }
 
-CLIENT *clntudp_create(struct sockaddr_in *raddr, 
-	unsigned long program, 
-	unsigned long version, 
-	struct timeval wait, 
-	int *sockp)
+CLIENT *clntudp_create(struct sockaddr_in *raddr,
+    unsigned long program,
+    unsigned long version,
+    struct timeval wait,
+    int *sockp)
 {
-	return (clntudp_bufcreate(raddr, program, version, wait, sockp,
-							  UDPMSGSIZE, UDPMSGSIZE));
+    return (clntudp_bufcreate(raddr, program, version, wait, sockp,
+                              UDPMSGSIZE, UDPMSGSIZE));
 }
 
-static enum clnt_stat clntudp_call(CLIENT *cl, unsigned long proc, 
-	xdrproc_t xargs, char* argsp, 
-	xdrproc_t xresults, char* resultsp, 
-	struct timeval utimeout)
+static enum clnt_stat clntudp_call(CLIENT *cl, unsigned long proc,
+    xdrproc_t xargs, char* argsp,
+    xdrproc_t xresults, char* resultsp,
+    struct timeval utimeout)
 {
-	register struct cu_data *cu = (struct cu_data *) cl->cl_private;
-	register XDR *xdrs;
-	register int outlen;
-	register int inlen;
-	socklen_t fromlen;
+    register struct cu_data *cu = (struct cu_data *) cl->cl_private;
+    register XDR *xdrs;
+    register int outlen;
+    register int inlen;
+    socklen_t fromlen;
 
-	struct sockaddr_in from;
-	struct rpc_msg reply_msg;
-	XDR reply_xdrs;
-	bool_t ok;
-	int nrefreshes = 2;			/* number of times to refresh cred */
+    struct sockaddr_in from;
+    struct rpc_msg reply_msg;
+    XDR reply_xdrs;
+    bool_t ok;
+    int nrefreshes = 2;         /* number of times to refresh cred */
 
 call_again:
-	xdrs = &(cu->cu_outxdrs);
-	xdrs->x_op = XDR_ENCODE;
-	XDR_SETPOS(xdrs, cu->cu_xdrpos);
+    xdrs = &(cu->cu_outxdrs);
+    xdrs->x_op = XDR_ENCODE;
+    XDR_SETPOS(xdrs, cu->cu_xdrpos);
 
-	/*
-	 * the transaction is the first thing in the out buffer
-	 */
-	(*(unsigned long *) (cu->cu_outbuf))++;
+    /*
+     * the transaction is the first thing in the out buffer
+     */
+    (*(unsigned long *) (cu->cu_outbuf))++;
 
-	if ((!XDR_PUTLONG(xdrs, (long *) &proc)) ||
-			(!AUTH_MARSHALL(cl->cl_auth, xdrs)) || (!(*xargs) (xdrs, argsp)))
+    if ((!XDR_PUTLONG(xdrs, (long *) &proc)) ||
+            (!AUTH_MARSHALL(cl->cl_auth, xdrs)) || (!(*xargs) (xdrs, argsp)))
     {
         cu->cu_error.re_status = RPC_CANTENCODEARGS;
-		return RPC_CANTENCODEARGS;
+        return RPC_CANTENCODEARGS;
     }
-	outlen = (int) XDR_GETPOS(xdrs);
+    outlen = (int) XDR_GETPOS(xdrs);
 
 send_again:
-	if (sendto(cu->cu_sock, cu->cu_outbuf, outlen, 0,
-			   (struct sockaddr *) &(cu->cu_raddr), cu->cu_rlen)
-			!= outlen)
-	{
-		cu->cu_error.re_errno = errno;
+    if (sendto(cu->cu_sock, cu->cu_outbuf, outlen, 0,
+               (struct sockaddr *) &(cu->cu_raddr), cu->cu_rlen)
+            != outlen)
+    {
+        cu->cu_error.re_errno = errno;
         cu->cu_error.re_status = RPC_CANTSEND;
-        
-		return RPC_CANTSEND;
-	}
 
-	/*
-	 * sub-optimal code appears here because we have
-	 * some clock time to spare while the packets are in flight.
-	 * (We assume that this is actually only executed once.)
-	 */
-	reply_msg.acpted_rply.ar_verf = _null_auth;
-	reply_msg.acpted_rply.ar_results.where = resultsp;
-	reply_msg.acpted_rply.ar_results.proc = xresults;
+        return RPC_CANTSEND;
+    }
 
-	/* do recv */
-	do
-	{
-		fromlen = sizeof(struct sockaddr);
+    /*
+     * sub-optimal code appears here because we have
+     * some clock time to spare while the packets are in flight.
+     * (We assume that this is actually only executed once.)
+     */
+    reply_msg.acpted_rply.ar_verf = _null_auth;
+    reply_msg.acpted_rply.ar_results.where = resultsp;
+    reply_msg.acpted_rply.ar_results.proc = xresults;
 
-		inlen = recvfrom(cu->cu_sock, cu->cu_inbuf,
-						 (int) cu->cu_recvsz, 0,
-						 (struct sockaddr *) &from, &fromlen);
-	}while (inlen < 0 && errno == EINTR);
+    /* do recv */
+    do
+    {
+        fromlen = sizeof(struct sockaddr);
 
-	if (inlen < 4)
-	{
-		rt_kprintf("recv error, len %d\n", inlen);
-		cu->cu_error.re_errno = errno;
-		cu->cu_error.re_status = RPC_CANTRECV;
-		
-		return RPC_CANTRECV;
-	}
+        inlen = recvfrom(cu->cu_sock, cu->cu_inbuf,
+                         (int) cu->cu_recvsz, 0,
+                         (struct sockaddr *) &from, &fromlen);
+    }while (inlen < 0 && errno == EINTR);
 
-	/* see if reply transaction id matches sent id */
-	if (*((uint32_t *) (cu->cu_inbuf)) != *((uint32_t *) (cu->cu_outbuf)))
-		goto send_again;
+    if (inlen < 4)
+    {
+        rt_kprintf("recv error, len %d\n", inlen);
+        cu->cu_error.re_errno = errno;
+        cu->cu_error.re_status = RPC_CANTRECV;
 
-	/* we now assume we have the proper reply */
+        return RPC_CANTRECV;
+    }
 
-	/*
-	 * now decode and validate the response
-	 */
-	xdrmem_create(&reply_xdrs, cu->cu_inbuf, (unsigned int) inlen, XDR_DECODE);
-	ok = xdr_replymsg(&reply_xdrs, &reply_msg);
-	/* XDR_DESTROY(&reply_xdrs);  save a few cycles on noop destroy */
-	if (ok)
-	{
-		_seterr_reply(&reply_msg, &(cu->cu_error));
-		if (cu->cu_error.re_status == RPC_SUCCESS)
-		{
-			if (!AUTH_VALIDATE(cl->cl_auth,
-							   &reply_msg.acpted_rply.ar_verf))
-			{
-				cu->cu_error.re_status = RPC_AUTHERROR;
-				cu->cu_error.re_why = AUTH_INVALIDRESP;
-			}
-			if (reply_msg.acpted_rply.ar_verf.oa_base != NULL)
-			{
-				extern bool_t xdr_opaque_auth(XDR *xdrs, struct opaque_auth *ap);
-				
-				xdrs->x_op = XDR_FREE;
-				(void) xdr_opaque_auth(xdrs, &(reply_msg.acpted_rply.ar_verf));
-			}
-		} /* end successful completion */
-		else
-		{
-			/* maybe our credentials need to be refreshed ... */
-			if (nrefreshes > 0 && AUTH_REFRESH(cl->cl_auth))
-			{
-				nrefreshes--;
-				goto call_again;
-			}
-		} /* end of unsuccessful completion */
-	} /* end of valid reply message */
-	else
-	{
-		cu->cu_error.re_status = RPC_CANTDECODERES;
-	}
+    /* see if reply transaction id matches sent id */
+    if (*((uint32_t *) (cu->cu_inbuf)) != *((uint32_t *) (cu->cu_outbuf)))
+        goto send_again;
 
-	return (enum clnt_stat)(cu->cu_error.re_status);
+    /* we now assume we have the proper reply */
+
+    /*
+     * now decode and validate the response
+     */
+    xdrmem_create(&reply_xdrs, cu->cu_inbuf, (unsigned int) inlen, XDR_DECODE);
+    ok = xdr_replymsg(&reply_xdrs, &reply_msg);
+    /* XDR_DESTROY(&reply_xdrs);  save a few cycles on noop destroy */
+    if (ok)
+    {
+        _seterr_reply(&reply_msg, &(cu->cu_error));
+        if (cu->cu_error.re_status == RPC_SUCCESS)
+        {
+            if (!AUTH_VALIDATE(cl->cl_auth,
+                               &reply_msg.acpted_rply.ar_verf))
+            {
+                cu->cu_error.re_status = RPC_AUTHERROR;
+                cu->cu_error.re_why = AUTH_INVALIDRESP;
+            }
+            if (reply_msg.acpted_rply.ar_verf.oa_base != NULL)
+            {
+                extern bool_t xdr_opaque_auth(XDR *xdrs, struct opaque_auth *ap);
+
+                xdrs->x_op = XDR_FREE;
+                (void) xdr_opaque_auth(xdrs, &(reply_msg.acpted_rply.ar_verf));
+            }
+        } /* end successful completion */
+        else
+        {
+            /* maybe our credentials need to be refreshed ... */
+            if (nrefreshes > 0 && AUTH_REFRESH(cl->cl_auth))
+            {
+                nrefreshes--;
+                goto call_again;
+            }
+        } /* end of unsuccessful completion */
+    } /* end of valid reply message */
+    else
+    {
+        cu->cu_error.re_status = RPC_CANTDECODERES;
+    }
+
+    return (enum clnt_stat)(cu->cu_error.re_status);
 }
 
 static void clntudp_geterr(CLIENT *cl, struct rpc_err *errp)
 {
-	register struct cu_data *cu = (struct cu_data *) cl->cl_private;
+    register struct cu_data *cu = (struct cu_data *) cl->cl_private;
 
-	*errp = cu->cu_error;
+    *errp = cu->cu_error;
 }
 
 static bool_t clntudp_freeres(CLIENT *cl, xdrproc_t xdr_res, char* res_ptr)
 {
-	register struct cu_data *cu = (struct cu_data *) cl->cl_private;
-	register XDR *xdrs = &(cu->cu_outxdrs);
+    register struct cu_data *cu = (struct cu_data *) cl->cl_private;
+    register XDR *xdrs = &(cu->cu_outxdrs);
 
-	xdrs->x_op = XDR_FREE;
-	return ((*xdr_res) (xdrs, res_ptr));
+    xdrs->x_op = XDR_FREE;
+    return ((*xdr_res) (xdrs, res_ptr));
 }
 
 static void clntudp_abort()
@@ -355,50 +355,50 @@ static void clntudp_abort()
 
 static bool_t clntudp_control(CLIENT *cl, int request, char *info)
 {
-	register struct cu_data *cu = (struct cu_data *) cl->cl_private;
+    register struct cu_data *cu = (struct cu_data *) cl->cl_private;
 
-	switch (request)
-	{
-	case CLSET_TIMEOUT:
-		{
-		int mtimeout;
+    switch (request)
+    {
+    case CLSET_TIMEOUT:
+        {
+        int mtimeout;
 
-		cu->cu_total = *(struct timeval *) info;
-		mtimeout = ((cu->cu_total.tv_sec * 1000) + ((cu->cu_total.tv_usec + 500)/1000));
+        cu->cu_total = *(struct timeval *) info;
+        mtimeout = ((cu->cu_total.tv_sec * 1000) + ((cu->cu_total.tv_usec + 500)/1000));
 
-		/* set socket option, note: lwip only support msecond timeout */
-		setsockopt(cu->cu_sock, SOL_SOCKET, SO_RCVTIMEO, 
-			&mtimeout, sizeof(mtimeout));
-		}
-		break;
-	case CLGET_TIMEOUT:
-		*(struct timeval *) info = cu->cu_total;
-		break;
-	case CLSET_RETRY_TIMEOUT:
-		cu->cu_wait = *(struct timeval *) info;
-		break;
-	case CLGET_RETRY_TIMEOUT:
-		*(struct timeval *) info = cu->cu_wait;
-		break;
-	case CLGET_SERVER_ADDR:
-		*(struct sockaddr_in *) info = cu->cu_raddr;
-		break;
-	default:
-		return (FALSE);
-	}
-	return (TRUE);
+        /* set socket option, note: lwip only support msecond timeout */
+        setsockopt(cu->cu_sock, SOL_SOCKET, SO_RCVTIMEO,
+            &mtimeout, sizeof(mtimeout));
+        }
+        break;
+    case CLGET_TIMEOUT:
+        *(struct timeval *) info = cu->cu_total;
+        break;
+    case CLSET_RETRY_TIMEOUT:
+        cu->cu_wait = *(struct timeval *) info;
+        break;
+    case CLGET_RETRY_TIMEOUT:
+        *(struct timeval *) info = cu->cu_wait;
+        break;
+    case CLGET_SERVER_ADDR:
+        *(struct sockaddr_in *) info = cu->cu_raddr;
+        break;
+    default:
+        return (FALSE);
+    }
+    return (TRUE);
 }
 
 static void clntudp_destroy(CLIENT *cl)
 {
-	register struct cu_data *cu = (struct cu_data *) cl->cl_private;
+    register struct cu_data *cu = (struct cu_data *) cl->cl_private;
 
-	if (cu->cu_closeit)
-	{
-		lwip_close(cu->cu_sock);
-	}
+    if (cu->cu_closeit)
+    {
+        lwip_close(cu->cu_sock);
+    }
 
-	XDR_DESTROY(&(cu->cu_outxdrs));
-	rt_free(cu);
-	rt_free(cl);
+    XDR_DESTROY(&(cu->cu_outxdrs));
+    rt_free(cu);
+    rt_free(cl);
 }
diff --git a/components/dfs/filesystems/nfs/rpc/pmap.c b/components/dfs/filesystems/nfs/rpc/pmap.c
index dc5a2ccb8d..afa2583d09 100644
--- a/components/dfs/filesystems/nfs/rpc/pmap.c
+++ b/components/dfs/filesystems/nfs/rpc/pmap.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -16,11 +16,11 @@ static struct timeval tottimeout = { 60, 0 };
 
 bool_t xdr_pmap(XDR *xdrs, struct pmap *regs)
 {
-	if (xdr_u_long(xdrs, &regs->pm_prog) &&
-		xdr_u_long(xdrs, &regs->pm_vers) &&
-		xdr_u_long(xdrs, &regs->pm_prot))
-			return (xdr_u_long(xdrs, &regs->pm_port));
-	return (FALSE);
+    if (xdr_u_long(xdrs, &regs->pm_prog) &&
+        xdr_u_long(xdrs, &regs->pm_vers) &&
+        xdr_u_long(xdrs, &regs->pm_prot))
+            return (xdr_u_long(xdrs, &regs->pm_port));
+    return (FALSE);
 }
 
 /*
@@ -30,33 +30,33 @@ bool_t xdr_pmap(XDR *xdrs, struct pmap *regs)
  */
 unsigned short pmap_getport(struct sockaddr_in *address, unsigned long program, unsigned long version, unsigned int protocol)
 {
-	unsigned short port = 0;
-	int socket = -1;
-	register CLIENT *client = RT_NULL;
-	struct pmap parms;
+    unsigned short port = 0;
+    int socket = -1;
+    register CLIENT *client = RT_NULL;
+    struct pmap parms;
 
-	address->sin_port = htons((unsigned short)PMAPPORT);
-	if (protocol == IPPROTO_UDP)
-	  client = clntudp_bufcreate(address, PMAPPROG, PMAPVERS, timeout,
-								  &socket, RPCSMALLMSGSIZE,
-							   RPCSMALLMSGSIZE);
+    address->sin_port = htons((unsigned short)PMAPPORT);
+    if (protocol == IPPROTO_UDP)
+      client = clntudp_bufcreate(address, PMAPPROG, PMAPVERS, timeout,
+                                  &socket, RPCSMALLMSGSIZE,
+                               RPCSMALLMSGSIZE);
 
-	if (client != (CLIENT *) NULL)
-	{
-		parms.pm_prog = program;
-		parms.pm_vers = version;
-		parms.pm_prot = protocol;
-		parms.pm_port = 0;		/* not needed or used */
-		if (CLNT_CALL(client, PMAPPROC_GETPORT, (xdrproc_t)xdr_pmap, (char*)&parms,
-					  (xdrproc_t)xdr_u_short, (char*)&port, tottimeout) != RPC_SUCCESS)
-		{
-			rt_kprintf("pmap failure\n");
-		}
-		CLNT_DESTROY(client);
-	}
+    if (client != (CLIENT *) NULL)
+    {
+        parms.pm_prog = program;
+        parms.pm_vers = version;
+        parms.pm_prot = protocol;
+        parms.pm_port = 0;      /* not needed or used */
+        if (CLNT_CALL(client, PMAPPROC_GETPORT, (xdrproc_t)xdr_pmap, (char*)&parms,
+                      (xdrproc_t)xdr_u_short, (char*)&port, tottimeout) != RPC_SUCCESS)
+        {
+            rt_kprintf("pmap failure\n");
+        }
+        CLNT_DESTROY(client);
+    }
 
-	(void) lwip_close(socket);
-	address->sin_port = 0;
+    (void) lwip_close(socket);
+    address->sin_port = 0;
 
-	return (port);
+    return (port);
 }
diff --git a/components/dfs/filesystems/nfs/rpc/pmap.h b/components/dfs/filesystems/nfs/rpc/pmap.h
index 8ae706c0aa..3a0305a6b8 100644
--- a/components/dfs/filesystems/nfs/rpc/pmap.h
+++ b/components/dfs/filesystems/nfs/rpc/pmap.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -14,51 +14,51 @@
 /* The following procedures are supported by the protocol:
  *
  * PMAPPROC_NULL() returns ()
- * 	takes nothing, returns nothing
+ *  takes nothing, returns nothing
  *
  * PMAPPROC_SET(struct pmap) returns (bool_t)
- * 	TRUE is success, FALSE is failure.  Registers the tuple
- *	[prog, vers, prot, port].
+ *  TRUE is success, FALSE is failure.  Registers the tuple
+ *  [prog, vers, prot, port].
  *
  * PMAPPROC_UNSET(struct pmap) returns (bool_t)
- *	TRUE is success, FALSE is failure.  Un-registers pair
- *	[prog, vers].  prot and port are ignored.
+ *  TRUE is success, FALSE is failure.  Un-registers pair
+ *  [prog, vers].  prot and port are ignored.
  *
  * PMAPPROC_GETPORT(struct pmap) returns (long unsigned).
- *	0 is failure.  Otherwise returns the port number where the pair
- *	[prog, vers] is registered.  It may lie!
+ *  0 is failure.  Otherwise returns the port number where the pair
+ *  [prog, vers] is registered.  It may lie!
  *
  * PMAPPROC_DUMP() RETURNS (struct pmaplist *)
  *
  * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>)
- * 	RETURNS (port, string<>);
+ *  RETURNS (port, string<>);
  * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs);
- * 	Calls the procedure on the local machine.  If it is not registered,
- *	this procedure is quite; ie it does not return error information!!!
- *	This procedure only is supported on rpc/udp and calls via
- *	rpc/udp.  This routine only passes null authentication parameters.
- *	This file has no interface to xdr routines for PMAPPROC_CALLIT.
+ *  Calls the procedure on the local machine.  If it is not registered,
+ *  this procedure is quite; ie it does not return error information!!!
+ *  This procedure only is supported on rpc/udp and calls via
+ *  rpc/udp.  This routine only passes null authentication parameters.
+ *  This file has no interface to xdr routines for PMAPPROC_CALLIT.
  *
  * The service supports remote procedure calls on udp/ip or tcp/ip socket 111.
  */
 
-#define PMAPPORT		((unsigned short)111)
-#define PMAPPROG		((unsigned long)100000)
-#define PMAPVERS		((unsigned long)2)
-#define PMAPVERS_PROTO		((unsigned long)2)
-#define PMAPVERS_ORIG		((unsigned long)1)
-#define PMAPPROC_NULL		((unsigned long)0)
-#define PMAPPROC_SET		((unsigned long)1)
-#define PMAPPROC_UNSET		((unsigned long)2)
-#define PMAPPROC_GETPORT	((unsigned long)3)
-#define PMAPPROC_DUMP		((unsigned long)4)
-#define PMAPPROC_CALLIT		((unsigned long)5)
+#define PMAPPORT        ((unsigned short)111)
+#define PMAPPROG        ((unsigned long)100000)
+#define PMAPVERS        ((unsigned long)2)
+#define PMAPVERS_PROTO      ((unsigned long)2)
+#define PMAPVERS_ORIG       ((unsigned long)1)
+#define PMAPPROC_NULL       ((unsigned long)0)
+#define PMAPPROC_SET        ((unsigned long)1)
+#define PMAPPROC_UNSET      ((unsigned long)2)
+#define PMAPPROC_GETPORT    ((unsigned long)3)
+#define PMAPPROC_DUMP       ((unsigned long)4)
+#define PMAPPROC_CALLIT     ((unsigned long)5)
 
 struct pmap {
-	long unsigned pm_prog;
-	long unsigned pm_vers;
-	long unsigned pm_prot;
-	long unsigned pm_port;
+    long unsigned pm_prog;
+    long unsigned pm_vers;
+    long unsigned pm_prot;
+    long unsigned pm_port;
 };
 
 extern bool_t xdr_pmap (XDR *__xdrs, struct pmap *__regs);
diff --git a/components/dfs/filesystems/nfs/rpc/rpc.h b/components/dfs/filesystems/nfs/rpc/rpc.h
index 7256d336a1..12d2477ef6 100644
--- a/components/dfs/filesystems/nfs/rpc/rpc.h
+++ b/components/dfs/filesystems/nfs/rpc/rpc.h
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-/* @(#)rpc.h	2.3 88/08/10 4.0 RPCSRC; from 1.9 88/02/08 SMI */
+/* @(#)rpc.h    2.3 88/08/10 4.0 RPCSRC; from 1.9 88/02/08 SMI */
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
@@ -46,17 +46,17 @@
 #ifndef _RPC_RPC_H
 #define _RPC_RPC_H 1
 
-#include <rpc/types.h>		/* some typedefs */
+#include <rpc/types.h>      /* some typedefs */
 
 /* external data representation interfaces */
-#include <rpc/xdr.h>		/* generic (de)serializer */
+#include <rpc/xdr.h>        /* generic (de)serializer */
 
 #include <rpc/auth.h>
 
 /* Client side (mostly) remote procedure call */
-#include <rpc/clnt.h>		/* generic rpc stuff */
+#include <rpc/clnt.h>       /* generic rpc stuff */
 
 /* semi-private protocol headers */
-#include <rpc/rpc_msg.h>	/* protocol for rpc messages */
+#include <rpc/rpc_msg.h>    /* protocol for rpc messages */
 
 #endif
diff --git a/components/dfs/filesystems/nfs/rpc/rpc_msg.h b/components/dfs/filesystems/nfs/rpc/rpc_msg.h
index a21ca1ce7d..358c3f7903 100644
--- a/components/dfs/filesystems/nfs/rpc/rpc_msg.h
+++ b/components/dfs/filesystems/nfs/rpc/rpc_msg.h
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-/* @(#)rpc_msg.h	2.1 88/07/29 4.0 RPCSRC */
+/* @(#)rpc_msg.h    2.1 88/07/29 4.0 RPCSRC */
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
@@ -50,8 +50,8 @@
  * Copyright (C) 1984, Sun Microsystems, Inc.
  */
 
-#define RPC_MSG_VERSION		((unsigned long) 2)
-#define RPC_SERVICE_PORT	((unsigned short) 2048)
+#define RPC_MSG_VERSION     ((unsigned long) 2)
+#define RPC_SERVICE_PORT    ((unsigned short) 2048)
 
 /*
  * Bottom up definition of an rpc message.
@@ -60,27 +60,27 @@
  */
 
 enum msg_type {
-	CALL=0,
-	REPLY=1
+    CALL=0,
+    REPLY=1
 };
 
 enum reply_stat {
-	MSG_ACCEPTED=0,
-	MSG_DENIED=1
+    MSG_ACCEPTED=0,
+    MSG_DENIED=1
 };
 
 enum accept_stat {
-	SUCCESS=0,
-	PROG_UNAVAIL=1,
-	PROG_MISMATCH=2,
-	PROC_UNAVAIL=3,
-	GARBAGE_ARGS=4,
-	SYSTEM_ERR=5
+    SUCCESS=0,
+    PROG_UNAVAIL=1,
+    PROG_MISMATCH=2,
+    PROC_UNAVAIL=3,
+    GARBAGE_ARGS=4,
+    SYSTEM_ERR=5
 };
 
 enum reject_stat {
-	RPC_MISMATCH=0,
-	AUTH_ERROR=1
+    RPC_MISMATCH=0,
+    AUTH_ERROR=1
 };
 
 /*
@@ -93,111 +93,111 @@ enum reject_stat {
  * accepted.
  */
 struct accepted_reply {
-	struct opaque_auth	ar_verf;
-	int	                ar_stat;
-	union {
-		struct {
-			unsigned long	low;
-			unsigned long	high;
-		} AR_versions;
-		struct {
-			char*	where;
-			xdrproc_t proc;
-		} AR_results;
-		/* and many other null cases */
-	} ru;
-#define	ar_results	ru.AR_results
-#define	ar_vers		ru.AR_versions
+    struct opaque_auth  ar_verf;
+    int                 ar_stat;
+    union {
+        struct {
+            unsigned long   low;
+            unsigned long   high;
+        } AR_versions;
+        struct {
+            char*   where;
+            xdrproc_t proc;
+        } AR_results;
+        /* and many other null cases */
+    } ru;
+#define ar_results  ru.AR_results
+#define ar_vers     ru.AR_versions
 };
 
 /*
  * Reply to an rpc request that was rejected by the server.
  */
 struct rejected_reply {
-	int rj_stat;
-	union {
-		struct {
-			unsigned long low;
-			unsigned long high;
-		} RJ_versions;
-		int RJ_why;  /* why authentication did not work */
-	} ru;
-#define	rj_vers	ru.RJ_versions
-#define	rj_why	ru.RJ_why
+    int rj_stat;
+    union {
+        struct {
+            unsigned long low;
+            unsigned long high;
+        } RJ_versions;
+        int RJ_why;  /* why authentication did not work */
+    } ru;
+#define rj_vers ru.RJ_versions
+#define rj_why  ru.RJ_why
 };
 
 /*
  * Body of a reply to an rpc request.
  */
 struct reply_body {
-	int rp_stat;
-	union {
-		struct accepted_reply RP_ar;
-		struct rejected_reply RP_dr;
-	} ru;
-#define	rp_acpt	ru.RP_ar
-#define	rp_rjct	ru.RP_dr
+    int rp_stat;
+    union {
+        struct accepted_reply RP_ar;
+        struct rejected_reply RP_dr;
+    } ru;
+#define rp_acpt ru.RP_ar
+#define rp_rjct ru.RP_dr
 };
 
 /*
  * Body of an rpc request call.
  */
 struct call_body {
-	unsigned long cb_rpcvers;	/* must be equal to two */
-	unsigned long cb_prog;
-	unsigned long cb_vers;
-	unsigned long cb_proc;
-	struct opaque_auth cb_cred;
-	struct opaque_auth cb_verf; /* protocol specific - provided by client */
+    unsigned long cb_rpcvers;   /* must be equal to two */
+    unsigned long cb_prog;
+    unsigned long cb_vers;
+    unsigned long cb_proc;
+    struct opaque_auth cb_cred;
+    struct opaque_auth cb_verf; /* protocol specific - provided by client */
 };
 
 /*
  * The rpc message
  */
 struct rpc_msg {
-	unsigned long	rm_xid;
-	int				rm_direction;
-	union {
-		struct call_body RM_cmb;
-		struct reply_body RM_rmb;
-	} ru;
-#define	rm_call		ru.RM_cmb
-#define	rm_reply	ru.RM_rmb
+    unsigned long   rm_xid;
+    int             rm_direction;
+    union {
+        struct call_body RM_cmb;
+        struct reply_body RM_rmb;
+    } ru;
+#define rm_call     ru.RM_cmb
+#define rm_reply    ru.RM_rmb
 };
-#define	acpted_rply	ru.RM_rmb.ru.RP_ar
-#define	rjcted_rply	ru.RM_rmb.ru.RP_dr
+#define acpted_rply ru.RM_rmb.ru.RP_ar
+#define rjcted_rply ru.RM_rmb.ru.RP_dr
 
 
 /*
  * XDR routine to handle a rpc message.
  * xdr_callmsg(xdrs, cmsg)
- * 	XDR *xdrs;
- * 	struct rpc_msg *cmsg;
+ *  XDR *xdrs;
+ *  struct rpc_msg *cmsg;
  */
-extern bool_t	xdr_callmsg (XDR *__xdrs, struct rpc_msg *__cmsg);
+extern bool_t   xdr_callmsg (XDR *__xdrs, struct rpc_msg *__cmsg);
 
 /*
  * XDR routine to pre-serialize the static part of a rpc message.
  * xdr_callhdr(xdrs, cmsg)
- * 	XDR *xdrs;
- * 	struct rpc_msg *cmsg;
+ *  XDR *xdrs;
+ *  struct rpc_msg *cmsg;
  */
-extern bool_t	xdr_callhdr (XDR *__xdrs, struct rpc_msg *__cmsg);
+extern bool_t   xdr_callhdr (XDR *__xdrs, struct rpc_msg *__cmsg);
 
 /*
  * XDR routine to handle a rpc reply.
  * xdr_replymsg(xdrs, rmsg)
- * 	XDR *xdrs;
- * 	struct rpc_msg *rmsg;
+ *  XDR *xdrs;
+ *  struct rpc_msg *rmsg;
  */
-extern bool_t	xdr_replymsg (XDR *__xdrs, struct rpc_msg *__rmsg);
+extern bool_t   xdr_replymsg (XDR *__xdrs, struct rpc_msg *__rmsg);
 
 /*
  * Fills in the error part of a reply message.
  * _seterr_reply(msg, error)
- * 	struct rpc_msg *msg;
- * 	struct rpc_err *error;
+ *  struct rpc_msg *msg;
+ *  struct rpc_err *error;
  */
-extern void	_seterr_reply (struct rpc_msg *__msg, struct rpc_err *__error);
+extern void _seterr_reply (struct rpc_msg *__msg, struct rpc_err *__error);
 
 #endif /* rpc/rpc_msg.h */
diff --git a/components/dfs/filesystems/nfs/rpc/rpc_prot.c b/components/dfs/filesystems/nfs/rpc/rpc_prot.c
index 427d7a11e4..61cb6cbc85 100644
--- a/components/dfs/filesystems/nfs/rpc/rpc_prot.c
+++ b/components/dfs/filesystems/nfs/rpc/rpc_prot.c
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-/* @(#)rpc_prot.c	2.3 88/08/07 4.0 RPCSRC */
+/* @(#)rpc_prot.c   2.3 88/08/07 4.0 RPCSRC */
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
@@ -14,23 +14,23 @@
  * may copy or modify Sun RPC without charge, but are not authorized
  * to license or distribute it to anyone else except as part of a product or
  * program developed by the user.
- * 
+ *
  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- * 
+ *
  * Sun RPC is provided with no support and without any obligation on the
  * part of Sun Microsystems, Inc. to assist in its use, correction,
  * modification or enhancement.
- * 
+ *
  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  * OR ANY PART THEREOF.
- * 
+ *
  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  * or profits or other special, indirect and consequential damages, even if
  * Sun has been advised of the possibility of such damages.
- * 
+ *
  * Sun Microsystems, Inc.
  * 2550 Garcia Avenue
  * Mountain View, California  94043
@@ -63,10 +63,10 @@ static char sccsid[] = "@(#)rpc_prot.c 1.36 87/08/11 Copyr 1984 Sun Micro";
 bool_t xdr_opaque_auth(XDR *xdrs, struct opaque_auth *ap)
 {
 
-	if (xdr_enum(xdrs, &(ap->oa_flavor)))
-		return (xdr_bytes(xdrs, &ap->oa_base,
-						  &ap->oa_length, MAX_AUTH_BYTES));
-	return (FALSE);
+    if (xdr_enum(xdrs, &(ap->oa_flavor)))
+        return (xdr_bytes(xdrs, &ap->oa_base,
+                          &ap->oa_length, MAX_AUTH_BYTES));
+    return (FALSE);
 }
 
 /*
@@ -74,7 +74,7 @@ bool_t xdr_opaque_auth(XDR *xdrs, struct opaque_auth *ap)
  */
 bool_t xdr_des_block(XDR *xdrs, des_block *blkp)
 {
-	return (xdr_opaque(xdrs, (char*) blkp, sizeof(des_block)));
+    return (xdr_opaque(xdrs, (char*) blkp, sizeof(des_block)));
 }
 
 /* * * * * * * * * * * * * * XDR RPC MESSAGE * * * * * * * * * * * * * * * */
@@ -85,22 +85,22 @@ bool_t xdr_des_block(XDR *xdrs, des_block *blkp)
 static bool_t xdr_accepted_reply(XDR *xdrs, struct accepted_reply *ar)
 {
 
-	/* personalized union, rather than calling xdr_union */
-	if (!xdr_opaque_auth(xdrs, &(ar->ar_verf)))
-		return (FALSE);
-	if (!xdr_enum(xdrs, (enum_t *) & (ar->ar_stat)))
-		return (FALSE);
-	switch (ar->ar_stat) {
+    /* personalized union, rather than calling xdr_union */
+    if (!xdr_opaque_auth(xdrs, &(ar->ar_verf)))
+        return (FALSE);
+    if (!xdr_enum(xdrs, (enum_t *) & (ar->ar_stat)))
+        return (FALSE);
+    switch (ar->ar_stat) {
 
-	case SUCCESS:
-		return ((*(ar->ar_results.proc)) (xdrs, ar->ar_results.where));
+    case SUCCESS:
+        return ((*(ar->ar_results.proc)) (xdrs, ar->ar_results.where));
 
-	case PROG_MISMATCH:
-		if (!xdr_u_long(xdrs, &(ar->ar_vers.low)))
-			return (FALSE);
-		return (xdr_u_long(xdrs, &(ar->ar_vers.high)));
-	}
-	return (TRUE);				/* TRUE => open ended set of problems */
+    case PROG_MISMATCH:
+        if (!xdr_u_long(xdrs, &(ar->ar_vers.low)))
+            return (FALSE);
+        return (xdr_u_long(xdrs, &(ar->ar_vers.high)));
+    }
+    return (TRUE);              /* TRUE => open ended set of problems */
 }
 
 /*
@@ -109,26 +109,26 @@ static bool_t xdr_accepted_reply(XDR *xdrs, struct accepted_reply *ar)
 static bool_t xdr_rejected_reply(XDR *xdrs, struct rejected_reply *rr)
 {
 
-	/* personalized union, rather than calling xdr_union */
-	if (!xdr_enum(xdrs, (enum_t *) & (rr->rj_stat)))
-		return (FALSE);
-	switch (rr->rj_stat) {
+    /* personalized union, rather than calling xdr_union */
+    if (!xdr_enum(xdrs, (enum_t *) & (rr->rj_stat)))
+        return (FALSE);
+    switch (rr->rj_stat) {
 
-	case RPC_MISMATCH:
-		if (!xdr_u_long(xdrs, &(rr->rj_vers.low)))
-			return (FALSE);
-		return (xdr_u_long(xdrs, &(rr->rj_vers.high)));
+    case RPC_MISMATCH:
+        if (!xdr_u_long(xdrs, &(rr->rj_vers.low)))
+            return (FALSE);
+        return (xdr_u_long(xdrs, &(rr->rj_vers.high)));
 
-	case AUTH_ERROR:
-		return (xdr_enum(xdrs, (enum_t *) & (rr->rj_why)));
-	}
-	return (FALSE);
+    case AUTH_ERROR:
+        return (xdr_enum(xdrs, (enum_t *) & (rr->rj_why)));
+    }
+    return (FALSE);
 }
 
 static struct xdr_discrim reply_dscrm[3] = {
-	{(int) MSG_ACCEPTED, (xdrproc_t)xdr_accepted_reply},
-	{(int) MSG_DENIED, (xdrproc_t)xdr_rejected_reply},
-	{__dontcare__, NULL_xdrproc_t}
+    {(int) MSG_ACCEPTED, (xdrproc_t)xdr_accepted_reply},
+    {(int) MSG_DENIED, (xdrproc_t)xdr_rejected_reply},
+    {__dontcare__, NULL_xdrproc_t}
 };
 
 /*
@@ -136,13 +136,13 @@ static struct xdr_discrim reply_dscrm[3] = {
  */
 bool_t xdr_replymsg(XDR *xdrs, struct rpc_msg *rmsg)
 {
-	if (xdr_u_long(xdrs, &(rmsg->rm_xid)) &&
-		xdr_enum(xdrs, (enum_t *) & (rmsg->rm_direction)) &&
-		(rmsg->rm_direction == REPLY))
-		return (xdr_union(xdrs, (enum_t *) & (rmsg->rm_reply.rp_stat),
-						  (char*) & (rmsg->rm_reply.ru), reply_dscrm,
-						  NULL_xdrproc_t));
-	return (FALSE);
+    if (xdr_u_long(xdrs, &(rmsg->rm_xid)) &&
+        xdr_enum(xdrs, (enum_t *) & (rmsg->rm_direction)) &&
+        (rmsg->rm_direction == REPLY))
+        return (xdr_union(xdrs, (enum_t *) & (rmsg->rm_reply.rp_stat),
+                          (char*) & (rmsg->rm_reply.ru), reply_dscrm,
+                          NULL_xdrproc_t));
+    return (FALSE);
 }
 
 
@@ -154,16 +154,16 @@ bool_t xdr_replymsg(XDR *xdrs, struct rpc_msg *rmsg)
 bool_t xdr_callhdr(XDR *xdrs, struct rpc_msg *cmsg)
 {
 
-	cmsg->rm_direction = CALL;
-	cmsg->rm_call.cb_rpcvers = RPC_MSG_VERSION;
-	if (
-		(xdrs->x_op == XDR_ENCODE) &&
-		xdr_u_long(xdrs, &(cmsg->rm_xid)) &&
-		xdr_enum(xdrs, (enum_t *) & (cmsg->rm_direction)) &&
-		xdr_u_long(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
-		xdr_u_long(xdrs, &(cmsg->rm_call.cb_prog)))
-			return (xdr_u_long(xdrs, &(cmsg->rm_call.cb_vers)));
-	return (FALSE);
+    cmsg->rm_direction = CALL;
+    cmsg->rm_call.cb_rpcvers = RPC_MSG_VERSION;
+    if (
+        (xdrs->x_op == XDR_ENCODE) &&
+        xdr_u_long(xdrs, &(cmsg->rm_xid)) &&
+        xdr_enum(xdrs, (enum_t *) & (cmsg->rm_direction)) &&
+        xdr_u_long(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
+        xdr_u_long(xdrs, &(cmsg->rm_call.cb_prog)))
+            return (xdr_u_long(xdrs, &(cmsg->rm_call.cb_vers)));
+    return (FALSE);
 }
 
 /* ************************** Client utility routine ************* */
@@ -171,55 +171,55 @@ bool_t xdr_callhdr(XDR *xdrs, struct rpc_msg *cmsg)
 static void accepted(enum accept_stat acpt_stat, struct rpc_err *error)
 {
 
-	switch (acpt_stat) {
+    switch (acpt_stat) {
 
-	case PROG_UNAVAIL:
-		error->re_status = RPC_PROGUNAVAIL;
-		return;
+    case PROG_UNAVAIL:
+        error->re_status = RPC_PROGUNAVAIL;
+        return;
 
-	case PROG_MISMATCH:
-		error->re_status = RPC_PROGVERSMISMATCH;
-		return;
+    case PROG_MISMATCH:
+        error->re_status = RPC_PROGVERSMISMATCH;
+        return;
 
-	case PROC_UNAVAIL:
-		error->re_status = RPC_PROCUNAVAIL;
-		return;
+    case PROC_UNAVAIL:
+        error->re_status = RPC_PROCUNAVAIL;
+        return;
 
-	case GARBAGE_ARGS:
-		error->re_status = RPC_CANTDECODEARGS;
-		return;
+    case GARBAGE_ARGS:
+        error->re_status = RPC_CANTDECODEARGS;
+        return;
 
-	case SYSTEM_ERR:
-		error->re_status = RPC_SYSTEMERROR;
-		return;
+    case SYSTEM_ERR:
+        error->re_status = RPC_SYSTEMERROR;
+        return;
 
-	case SUCCESS:
-		error->re_status = RPC_SUCCESS;
-		return;
-	}
-	/* something's wrong, but we don't know what ... */
-	error->re_status = RPC_FAILED;
-	error->re_lb.s1 = (long) MSG_ACCEPTED;
-	error->re_lb.s2 = (long) acpt_stat;
+    case SUCCESS:
+        error->re_status = RPC_SUCCESS;
+        return;
+    }
+    /* something's wrong, but we don't know what ... */
+    error->re_status = RPC_FAILED;
+    error->re_lb.s1 = (long) MSG_ACCEPTED;
+    error->re_lb.s2 = (long) acpt_stat;
 }
 
 static void rejected(enum reject_stat rjct_stat, struct rpc_err *error)
 {
 
-	switch (rjct_stat) {
+    switch (rjct_stat) {
 
-	case RPC_VERSMISMATCH:
-		error->re_status = RPC_VERSMISMATCH;
-		return;
+    case RPC_VERSMISMATCH:
+        error->re_status = RPC_VERSMISMATCH;
+        return;
 
-	case AUTH_ERROR:
-		error->re_status = RPC_AUTHERROR;
-		return;
-	}
-	/* something's wrong, but we don't know what ... */
-	error->re_status = RPC_FAILED;
-	error->re_lb.s1 = (long) MSG_DENIED;
-	error->re_lb.s2 = (long) rjct_stat;
+    case AUTH_ERROR:
+        error->re_status = RPC_AUTHERROR;
+        return;
+    }
+    /* something's wrong, but we don't know what ... */
+    error->re_status = RPC_FAILED;
+    error->re_lb.s1 = (long) MSG_DENIED;
+    error->re_lb.s2 = (long) rjct_stat;
 }
 
 /*
@@ -228,40 +228,40 @@ static void rejected(enum reject_stat rjct_stat, struct rpc_err *error)
 void _seterr_reply(struct rpc_msg *msg, struct rpc_err *error)
 {
 
-	/* optimized for normal, SUCCESSful case */
-	switch (msg->rm_reply.rp_stat) {
+    /* optimized for normal, SUCCESSful case */
+    switch (msg->rm_reply.rp_stat) {
 
-	case MSG_ACCEPTED:
-		if (msg->acpted_rply.ar_stat == SUCCESS) {
-			error->re_status = RPC_SUCCESS;
-			return;
-		};
-		accepted((enum accept_stat)msg->acpted_rply.ar_stat, error);
-		break;
+    case MSG_ACCEPTED:
+        if (msg->acpted_rply.ar_stat == SUCCESS) {
+            error->re_status = RPC_SUCCESS;
+            return;
+        };
+        accepted((enum accept_stat)msg->acpted_rply.ar_stat, error);
+        break;
 
-	case MSG_DENIED:
-		rejected((enum reject_stat)msg->rjcted_rply.rj_stat, error);
-		break;
+    case MSG_DENIED:
+        rejected((enum reject_stat)msg->rjcted_rply.rj_stat, error);
+        break;
 
-	default:
-		error->re_status = RPC_FAILED;
-		error->re_lb.s1 = (long) (msg->rm_reply.rp_stat);
-		break;
-	}
-	switch (error->re_status) {
+    default:
+        error->re_status = RPC_FAILED;
+        error->re_lb.s1 = (long) (msg->rm_reply.rp_stat);
+        break;
+    }
+    switch (error->re_status) {
 
-	case RPC_VERSMISMATCH:
-		error->re_vers.low = msg->rjcted_rply.rj_vers.low;
-		error->re_vers.high = msg->rjcted_rply.rj_vers.high;
-		break;
+    case RPC_VERSMISMATCH:
+        error->re_vers.low = msg->rjcted_rply.rj_vers.low;
+        error->re_vers.high = msg->rjcted_rply.rj_vers.high;
+        break;
 
-	case RPC_AUTHERROR:
-		error->re_why = msg->rjcted_rply.rj_why;
-		break;
+    case RPC_AUTHERROR:
+        error->re_why = msg->rjcted_rply.rj_why;
+        break;
 
-	case RPC_PROGVERSMISMATCH:
-		error->re_vers.low = msg->acpted_rply.ar_vers.low;
-		error->re_vers.high = msg->acpted_rply.ar_vers.high;
-		break;
-	}
+    case RPC_PROGVERSMISMATCH:
+        error->re_vers.low = msg->acpted_rply.ar_vers.low;
+        error->re_vers.high = msg->acpted_rply.ar_vers.high;
+        break;
+    }
 }
diff --git a/components/dfs/filesystems/nfs/rpc/types.h b/components/dfs/filesystems/nfs/rpc/types.h
index d76d89146c..043bfab896 100644
--- a/components/dfs/filesystems/nfs/rpc/types.h
+++ b/components/dfs/filesystems/nfs/rpc/types.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/nfs/rpc/xdr.c b/components/dfs/filesystems/nfs/rpc/xdr.c
index a6b1b67afb..fa3b12ef00 100644
--- a/components/dfs/filesystems/nfs/rpc/xdr.c
+++ b/components/dfs/filesystems/nfs/rpc/xdr.c
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-/* @(#)xdr.c	2.1 88/07/29 4.0 RPCSRC */
+/* @(#)xdr.c    2.1 88/07/29 4.0 RPCSRC */
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
@@ -14,23 +14,23 @@
  * may copy or modify Sun RPC without charge, but are not authorized
  * to license or distribute it to anyone else except as part of a product or
  * program developed by the user.
- * 
+ *
  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- * 
+ *
  * Sun RPC is provided with no support and without any obligation on the
  * part of Sun Microsystems, Inc. to assist in its use, correction,
  * modification or enhancement.
- * 
+ *
  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  * OR ANY PART THEREOF.
- * 
+ *
  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  * or profits or other special, indirect and consequential damages, even if
  * Sun has been advised of the possibility of such damages.
- * 
+ *
  * Sun Microsystems, Inc.
  * 2550 Garcia Avenue
  * Mountain View, California  94043
@@ -58,9 +58,9 @@ static char sccsid[] = "@(#)xdr.c 1.35 87/08/12";
 /*
  * constants specific to the xdr "protocol"
  */
-#define XDR_FALSE		((long) 0)
-#define XDR_TRUE		((long) 1)
-#define LASTUNSIGNED	((unsigned int) 0-1)
+#define XDR_FALSE       ((long) 0)
+#define XDR_TRUE        ((long) 1)
+#define LASTUNSIGNED    ((unsigned int) 0-1)
 
 /*
  * for unit alignment
@@ -73,21 +73,21 @@ static char xdr_zero[BYTES_PER_XDR_UNIT] = { 0, 0, 0, 0 };
  */
 void xdr_free(xdrproc_t proc, char* objp)
 {
-	XDR x;
+    XDR x;
 
-	x.x_op = XDR_FREE;
-	(*proc) (&x, objp);
+    x.x_op = XDR_FREE;
+    (*proc) (&x, objp);
 }
 
 /*
  * XDR nothing
  */
 bool_t xdr_void( /* xdrs, addr */ )
-	/* XDR *xdrs; */
-	/* char* addr; */
+    /* XDR *xdrs; */
+    /* char* addr; */
 {
 
-	return (TRUE);
+    return (TRUE);
 }
 
 /*
@@ -95,25 +95,25 @@ bool_t xdr_void( /* xdrs, addr */ )
  */
 bool_t xdr_int(XDR* xdrs, int* ip)
 {
-	if (sizeof(int) == sizeof(long)) {
-		return (xdr_long(xdrs, (long *) ip));
-	} else if (sizeof(int) < sizeof(long)) {
-	  long l;
-	  switch (xdrs->x_op) {
-	  case XDR_ENCODE:
-		l = (long) *ip;
-		return XDR_PUTLONG(xdrs, &l);
-	  case XDR_DECODE:
-		if (!XDR_GETLONG(xdrs, &l))
-		  return FALSE;
-		*ip = (int) l;
-	  case XDR_FREE:
-		return TRUE;
-	  }
-	  return FALSE;
-	} else {
-		return (xdr_short(xdrs, (short *) ip));
-	}
+    if (sizeof(int) == sizeof(long)) {
+        return (xdr_long(xdrs, (long *) ip));
+    } else if (sizeof(int) < sizeof(long)) {
+      long l;
+      switch (xdrs->x_op) {
+      case XDR_ENCODE:
+        l = (long) *ip;
+        return XDR_PUTLONG(xdrs, &l);
+      case XDR_DECODE:
+        if (!XDR_GETLONG(xdrs, &l))
+          return FALSE;
+        *ip = (int) l;
+      case XDR_FREE:
+        return TRUE;
+      }
+      return FALSE;
+    } else {
+        return (xdr_short(xdrs, (short *) ip));
+    }
 }
 
 /*
@@ -121,25 +121,25 @@ bool_t xdr_int(XDR* xdrs, int* ip)
  */
 bool_t xdr_u_int(XDR* xdrs, unsigned int* up)
 {
-	if (sizeof(unsigned int) == sizeof(unsigned long)) {
-		return (xdr_u_long(xdrs, (unsigned long *) up));
-	} else if (sizeof(unsigned int) < sizeof(unsigned long)) {
-	  unsigned long l;
-	  switch (xdrs->x_op) {
-	  case XDR_ENCODE:
-		l = (unsigned long) *up;
-		return XDR_PUTLONG(xdrs, (long*)&l);
-	  case XDR_DECODE:
-		if (!XDR_GETLONG(xdrs, (long*)&l))
-		  return FALSE;
-		*up = (unsigned int) l;
-	  case XDR_FREE:
-		return TRUE;
-	  }
-	  return FALSE;
-	} else {
-		return (xdr_short(xdrs, (short *) up));
-	}
+    if (sizeof(unsigned int) == sizeof(unsigned long)) {
+        return (xdr_u_long(xdrs, (unsigned long *) up));
+    } else if (sizeof(unsigned int) < sizeof(unsigned long)) {
+      unsigned long l;
+      switch (xdrs->x_op) {
+      case XDR_ENCODE:
+        l = (unsigned long) *up;
+        return XDR_PUTLONG(xdrs, (long*)&l);
+      case XDR_DECODE:
+        if (!XDR_GETLONG(xdrs, (long*)&l))
+          return FALSE;
+        *up = (unsigned int) l;
+      case XDR_FREE:
+        return TRUE;
+      }
+      return FALSE;
+    } else {
+        return (xdr_short(xdrs, (short *) up));
+    }
 }
 
 /*
@@ -149,18 +149,18 @@ bool_t xdr_u_int(XDR* xdrs, unsigned int* up)
 bool_t xdr_long(XDR* xdrs, long* lp)
 {
 
-	if (xdrs->x_op == XDR_ENCODE
-		&& (sizeof(int32_t) == sizeof(long)
-			|| (int32_t) *lp == *lp))
-		return (XDR_PUTLONG(xdrs, lp));
+    if (xdrs->x_op == XDR_ENCODE
+        && (sizeof(int32_t) == sizeof(long)
+            || (int32_t) *lp == *lp))
+        return (XDR_PUTLONG(xdrs, lp));
 
-	if (xdrs->x_op == XDR_DECODE)
-		return (XDR_GETLONG(xdrs, lp));
+    if (xdrs->x_op == XDR_DECODE)
+        return (XDR_GETLONG(xdrs, lp));
 
-	if (xdrs->x_op == XDR_FREE)
-		return (TRUE);
+    if (xdrs->x_op == XDR_FREE)
+        return (TRUE);
 
-	return (FALSE);
+    return (FALSE);
 }
 
 /*
@@ -171,25 +171,25 @@ bool_t xdr_u_long(XDR* xdrs, unsigned long* ulp)
 {
 
   if (xdrs->x_op == XDR_DECODE) {
-	long l;
-	if (XDR_GETLONG(xdrs, &l) == FALSE)
-	  return FALSE;
-	*ulp = (uint32_t) l;
-	return TRUE;
+    long l;
+    if (XDR_GETLONG(xdrs, &l) == FALSE)
+      return FALSE;
+    *ulp = (uint32_t) l;
+    return TRUE;
   }
 
   if (xdrs->x_op == XDR_ENCODE) {
-	if (sizeof(uint32_t) != sizeof(unsigned long)
-		&& (uint32_t) *ulp != *ulp)
-	  return FALSE;
+    if (sizeof(uint32_t) != sizeof(unsigned long)
+        && (uint32_t) *ulp != *ulp)
+      return FALSE;
 
-		return (XDR_PUTLONG(xdrs, (long *) ulp));
+        return (XDR_PUTLONG(xdrs, (long *) ulp));
   }
 
-	if (xdrs->x_op == XDR_FREE)
-		return (TRUE);
+    if (xdrs->x_op == XDR_FREE)
+        return (TRUE);
 
-	return (FALSE);
+    return (FALSE);
 }
 
 
@@ -254,25 +254,25 @@ bool_t xdr_u_longlong_t (XDR * xdrs, unsigned long long* ullp)
  */
 bool_t xdr_short(XDR* xdrs, short* sp)
 {
-	long l;
+    long l;
 
-	switch (xdrs->x_op) {
+    switch (xdrs->x_op) {
 
-	case XDR_ENCODE:
-		l = (long) *sp;
-		return (XDR_PUTLONG(xdrs, &l));
+    case XDR_ENCODE:
+        l = (long) *sp;
+        return (XDR_PUTLONG(xdrs, &l));
 
-	case XDR_DECODE:
-		if (!XDR_GETLONG(xdrs, &l)) {
-			return (FALSE);
-		}
-		*sp = (short) l;
-		return (TRUE);
+    case XDR_DECODE:
+        if (!XDR_GETLONG(xdrs, &l)) {
+            return (FALSE);
+        }
+        *sp = (short) l;
+        return (TRUE);
 
-	case XDR_FREE:
-		return (TRUE);
-	}
-	return (FALSE);
+    case XDR_FREE:
+        return (TRUE);
+    }
+    return (FALSE);
 }
 
 /*
@@ -280,25 +280,25 @@ bool_t xdr_short(XDR* xdrs, short* sp)
  */
 bool_t xdr_u_short(XDR* xdrs, unsigned short* usp)
 {
-	unsigned long l;
+    unsigned long l;
 
-	switch (xdrs->x_op) {
+    switch (xdrs->x_op) {
 
-	case XDR_ENCODE:
-		l = (unsigned long) * usp;
-		return (XDR_PUTLONG(xdrs, (long*)&l));
+    case XDR_ENCODE:
+        l = (unsigned long) * usp;
+        return (XDR_PUTLONG(xdrs, (long*)&l));
 
-	case XDR_DECODE:
-		if (!XDR_GETLONG(xdrs, (long*)&l)) {
-			return (FALSE);
-		}
-		*usp = (unsigned short) l;
-		return (TRUE);
+    case XDR_DECODE:
+        if (!XDR_GETLONG(xdrs, (long*)&l)) {
+            return (FALSE);
+        }
+        *usp = (unsigned short) l;
+        return (TRUE);
 
-	case XDR_FREE:
-		return (TRUE);
-	}
-	return (FALSE);
+    case XDR_FREE:
+        return (TRUE);
+    }
+    return (FALSE);
 }
 
 
@@ -307,14 +307,14 @@ bool_t xdr_u_short(XDR* xdrs, unsigned short* usp)
  */
 bool_t xdr_char(XDR* xdrs, char* cp)
 {
-	int i;
+    int i;
 
-	i = (*cp);
-	if (!xdr_int(xdrs, &i)) {
-		return (FALSE);
-	}
-	*cp = i;
-	return (TRUE);
+    i = (*cp);
+    if (!xdr_int(xdrs, &i)) {
+        return (FALSE);
+    }
+    *cp = i;
+    return (TRUE);
 }
 
 /*
@@ -322,14 +322,14 @@ bool_t xdr_char(XDR* xdrs, char* cp)
  */
 bool_t xdr_u_char(XDR* xdrs, unsigned char* cp)
 {
-	unsigned int u;
+    unsigned int u;
 
-	u = (*cp);
-	if (!xdr_u_int(xdrs, &u)) {
-		return (FALSE);
-	}
-	*cp = u;
-	return (TRUE);
+    u = (*cp);
+    if (!xdr_u_int(xdrs, &u)) {
+        return (FALSE);
+    }
+    *cp = u;
+    return (TRUE);
 }
 
 /*
@@ -337,25 +337,25 @@ bool_t xdr_u_char(XDR* xdrs, unsigned char* cp)
  */
 bool_t xdr_bool(XDR *xdrs, bool_t *bp)
 {
-	long lb;
+    long lb;
 
-	switch (xdrs->x_op) {
+    switch (xdrs->x_op) {
 
-	case XDR_ENCODE:
-		lb = *bp ? XDR_TRUE : XDR_FALSE;
-		return (XDR_PUTLONG(xdrs, &lb));
+    case XDR_ENCODE:
+        lb = *bp ? XDR_TRUE : XDR_FALSE;
+        return (XDR_PUTLONG(xdrs, &lb));
 
-	case XDR_DECODE:
-		if (!XDR_GETLONG(xdrs, &lb)) {
-			return (FALSE);
-		}
-		*bp = (lb == XDR_FALSE) ? FALSE : TRUE;
-		return (TRUE);
+    case XDR_DECODE:
+        if (!XDR_GETLONG(xdrs, &lb)) {
+            return (FALSE);
+        }
+        *bp = (lb == XDR_FALSE) ? FALSE : TRUE;
+        return (TRUE);
 
-	case XDR_FREE:
-		return (TRUE);
-	}
-	return (FALSE);
+    case XDR_FREE:
+        return (TRUE);
+    }
+    return (FALSE);
 }
 
 /*
@@ -363,10 +363,10 @@ bool_t xdr_bool(XDR *xdrs, bool_t *bp)
  */
 bool_t xdr_enum(XDR *xdrs, enum_t *ep)
 {
-	/*
-	 * enums are treated as ints
-	 */
-	return (xdr_long(xdrs, (long *) ep));
+    /*
+     * enums are treated as ints
+     */
+    return (xdr_long(xdrs, (long *) ep));
 }
 
 /*
@@ -376,45 +376,45 @@ bool_t xdr_enum(XDR *xdrs, enum_t *ep)
  */
 bool_t xdr_opaque(XDR *xdrs, char* cp, unsigned int cnt)
 {
-	register unsigned int rndup;
-	static char crud[BYTES_PER_XDR_UNIT];
+    register unsigned int rndup;
+    static char crud[BYTES_PER_XDR_UNIT];
 
-	/*
-	 * if no data we are done
-	 */
-	if (cnt == 0)
-		return (TRUE);
+    /*
+     * if no data we are done
+     */
+    if (cnt == 0)
+        return (TRUE);
 
-	/*
-	 * round byte count to full xdr units
-	 */
-	rndup = cnt % BYTES_PER_XDR_UNIT;
-	if (rndup > 0)
-		rndup = BYTES_PER_XDR_UNIT - rndup;
+    /*
+     * round byte count to full xdr units
+     */
+    rndup = cnt % BYTES_PER_XDR_UNIT;
+    if (rndup > 0)
+        rndup = BYTES_PER_XDR_UNIT - rndup;
 
-	if (xdrs->x_op == XDR_DECODE) {
-		if (!XDR_GETBYTES(xdrs, cp, cnt)) {
-			return (FALSE);
-		}
-		if (rndup == 0)
-			return (TRUE);
-		return (XDR_GETBYTES(xdrs, crud, rndup));
-	}
+    if (xdrs->x_op == XDR_DECODE) {
+        if (!XDR_GETBYTES(xdrs, cp, cnt)) {
+            return (FALSE);
+        }
+        if (rndup == 0)
+            return (TRUE);
+        return (XDR_GETBYTES(xdrs, crud, rndup));
+    }
 
-	if (xdrs->x_op == XDR_ENCODE) {
-		if (!XDR_PUTBYTES(xdrs, cp, cnt)) {
-			return (FALSE);
-		}
-		if (rndup == 0)
-			return (TRUE);
-		return (XDR_PUTBYTES(xdrs, xdr_zero, rndup));
-	}
+    if (xdrs->x_op == XDR_ENCODE) {
+        if (!XDR_PUTBYTES(xdrs, cp, cnt)) {
+            return (FALSE);
+        }
+        if (rndup == 0)
+            return (TRUE);
+        return (XDR_PUTBYTES(xdrs, xdr_zero, rndup));
+    }
 
-	if (xdrs->x_op == XDR_FREE) {
-		return (TRUE);
-	}
+    if (xdrs->x_op == XDR_FREE) {
+        return (TRUE);
+    }
 
-	return (FALSE);
+    return (FALSE);
 }
 
 /*
@@ -424,49 +424,49 @@ bool_t xdr_opaque(XDR *xdrs, char* cp, unsigned int cnt)
  */
 bool_t xdr_bytes(XDR *xdrs, char** cpp, unsigned int *sizep, unsigned int maxsize)
 {
-	register char *sp = *cpp;	/* sp is the actual string pointer */
-	register unsigned int nodesize;
+    register char *sp = *cpp;   /* sp is the actual string pointer */
+    register unsigned int nodesize;
 
-	/*
-	 * first deal with the length since xdr bytes are counted
-	 */
-	if (!xdr_u_int(xdrs, sizep)) {
-		return (FALSE);
-	}
-	nodesize = *sizep;
-	if ((nodesize > maxsize) && (xdrs->x_op != XDR_FREE)) {
-		return (FALSE);
-	}
+    /*
+     * first deal with the length since xdr bytes are counted
+     */
+    if (!xdr_u_int(xdrs, sizep)) {
+        return (FALSE);
+    }
+    nodesize = *sizep;
+    if ((nodesize > maxsize) && (xdrs->x_op != XDR_FREE)) {
+        return (FALSE);
+    }
 
-	/*
-	 * now deal with the actual bytes
-	 */
-	switch (xdrs->x_op) {
+    /*
+     * now deal with the actual bytes
+     */
+    switch (xdrs->x_op) {
 
-	case XDR_DECODE:
-		if (nodesize == 0) {
-			return (TRUE);
-		}
-		if (sp == NULL) {
-			*cpp = sp = (char *) rt_malloc(nodesize);
-		}
-		if (sp == NULL) {
-			rt_kprintf("xdr_bytes: out of memory\n");
-			return (FALSE);
-		}
-		/* fall into ... */
+    case XDR_DECODE:
+        if (nodesize == 0) {
+            return (TRUE);
+        }
+        if (sp == NULL) {
+            *cpp = sp = (char *) rt_malloc(nodesize);
+        }
+        if (sp == NULL) {
+            rt_kprintf("xdr_bytes: out of memory\n");
+            return (FALSE);
+        }
+        /* fall into ... */
 
-	case XDR_ENCODE:
-		return (xdr_opaque(xdrs, sp, nodesize));
+    case XDR_ENCODE:
+        return (xdr_opaque(xdrs, sp, nodesize));
 
-	case XDR_FREE:
-		if (sp != NULL) {
-			rt_free(sp);
-			*cpp = NULL;
-		}
-		return (TRUE);
-	}
-	return (FALSE);
+    case XDR_FREE:
+        if (sp != NULL) {
+            rt_free(sp);
+            *cpp = NULL;
+        }
+        return (TRUE);
+    }
+    return (FALSE);
 }
 
 /*
@@ -474,7 +474,7 @@ bool_t xdr_bytes(XDR *xdrs, char** cpp, unsigned int *sizep, unsigned int maxsiz
  */
 bool_t xdr_netobj(XDR *xdrs, struct netobj *np)
 {
-	return (xdr_bytes(xdrs, &np->n_bytes, &np->n_len, MAX_NETOBJ_SZ));
+    return (xdr_bytes(xdrs, &np->n_bytes, &np->n_len, MAX_NETOBJ_SZ));
 }
 
 /*
@@ -490,30 +490,30 @@ bool_t xdr_netobj(XDR *xdrs, struct netobj *np)
  */
 bool_t xdr_union(XDR* xdrs, enum_t* dscmp, char* unp, const struct xdr_discrim* choices, xdrproc_t dfault)
 {
-	register enum_t dscm;
+    register enum_t dscm;
 
-	/*
-	 * we deal with the discriminator;  it's an enum
-	 */
-	if (!xdr_enum(xdrs, dscmp)) {
-		return (FALSE);
-	}
-	dscm = *dscmp;
+    /*
+     * we deal with the discriminator;  it's an enum
+     */
+    if (!xdr_enum(xdrs, dscmp)) {
+        return (FALSE);
+    }
+    dscm = *dscmp;
 
-	/*
-	 * search choices for a value that matches the discriminator.
-	 * if we find one, execute the xdr routine for that value.
-	 */
-	for (; choices->proc != NULL_xdrproc_t; choices++) {
-		if (choices->value == dscm)
-			return ((*(choices->proc)) (xdrs, unp, LASTUNSIGNED));
-	}
+    /*
+     * search choices for a value that matches the discriminator.
+     * if we find one, execute the xdr routine for that value.
+     */
+    for (; choices->proc != NULL_xdrproc_t; choices++) {
+        if (choices->value == dscm)
+            return ((*(choices->proc)) (xdrs, unp, LASTUNSIGNED));
+    }
 
-	/*
-	 * no match - execute the default xdr routine if there is one
-	 */
-	return ((dfault == NULL_xdrproc_t) ? FALSE :
-			(*dfault) (xdrs, unp, LASTUNSIGNED));
+    /*
+     * no match - execute the default xdr routine if there is one
+     */
+    return ((dfault == NULL_xdrproc_t) ? FALSE :
+            (*dfault) (xdrs, unp, LASTUNSIGNED));
 }
 
 
@@ -533,70 +533,70 @@ bool_t xdr_union(XDR* xdrs, enum_t* dscmp, char* unp, const struct xdr_discrim*
  */
 bool_t xdr_string(XDR *xdrs, char **cpp, unsigned int maxsize)
 {
-	register char *sp = *cpp;	/* sp is the actual string pointer */
-	unsigned int size;
-	unsigned int nodesize;
+    register char *sp = *cpp;   /* sp is the actual string pointer */
+    unsigned int size;
+    unsigned int nodesize;
 
-	/*
-	 * first deal with the length since xdr strings are counted-strings
-	 */
-	switch (xdrs->x_op) {
-	case XDR_FREE:
-		if (sp == NULL) {
-			return (TRUE);		/* already free */
-		}
-		/* fall through... */
-	case XDR_ENCODE:
-		size = strlen(sp);
-		break;
-	}
-	if (!xdr_u_int(xdrs, &size)) {
-		return (FALSE);
-	}
-	if (size > maxsize) {
-		return (FALSE);
-	}
-	nodesize = size + 1;
+    /*
+     * first deal with the length since xdr strings are counted-strings
+     */
+    switch (xdrs->x_op) {
+    case XDR_FREE:
+        if (sp == NULL) {
+            return (TRUE);      /* already free */
+        }
+        /* fall through... */
+    case XDR_ENCODE:
+        size = strlen(sp);
+        break;
+    }
+    if (!xdr_u_int(xdrs, &size)) {
+        return (FALSE);
+    }
+    if (size > maxsize) {
+        return (FALSE);
+    }
+    nodesize = size + 1;
 
-	/*
-	 * now deal with the actual bytes
-	 */
-	switch (xdrs->x_op) {
+    /*
+     * now deal with the actual bytes
+     */
+    switch (xdrs->x_op) {
 
-	case XDR_DECODE:
-		if (nodesize == 0) {
-			return (TRUE);
-		}
-		if (sp == NULL)
-			*cpp = sp = (char *) rt_malloc(nodesize);
-		if (sp == NULL) {
-			rt_kprintf("xdr_string: out of memory\n");
-			return (FALSE);
-		}
-		sp[size] = 0;
-		/* fall into ... */
+    case XDR_DECODE:
+        if (nodesize == 0) {
+            return (TRUE);
+        }
+        if (sp == NULL)
+            *cpp = sp = (char *) rt_malloc(nodesize);
+        if (sp == NULL) {
+            rt_kprintf("xdr_string: out of memory\n");
+            return (FALSE);
+        }
+        sp[size] = 0;
+        /* fall into ... */
 
-	case XDR_ENCODE:
-		return (xdr_opaque(xdrs, sp, size));
+    case XDR_ENCODE:
+        return (xdr_opaque(xdrs, sp, size));
 
-	case XDR_FREE:
-		rt_free(sp);
-		*cpp = NULL;
-		return (TRUE);
-	}
-	return (FALSE);
+    case XDR_FREE:
+        rt_free(sp);
+        *cpp = NULL;
+        return (TRUE);
+    }
+    return (FALSE);
 }
 
-/* 
- * Wrapper for xdr_string that can be called directly from 
+/*
+ * Wrapper for xdr_string that can be called directly from
  * routines like clnt_call
  */
 bool_t xdr_wrapstring(XDR *xdrs, char **cpp)
 {
-	if (xdr_string(xdrs, cpp, LASTUNSIGNED)) {
-		return (TRUE);
-	}
-	return (FALSE);
+    if (xdr_string(xdrs, cpp, LASTUNSIGNED)) {
+        return (TRUE);
+    }
+    return (FALSE);
 }
 
 /*
@@ -608,69 +608,69 @@ bool_t xdr_wrapstring(XDR *xdrs, char **cpp)
  */
 bool_t xdr_array(XDR *xdrs, char **addrp, unsigned int *sizep, unsigned int maxsize, unsigned int elsize, xdrproc_t elproc)
 {
-	register unsigned int i;
-	register char* target = *addrp;
-	register unsigned int c;			/* the actual element count */
-	register bool_t stat = TRUE;
-	register unsigned int nodesize;
+    register unsigned int i;
+    register char* target = *addrp;
+    register unsigned int c;            /* the actual element count */
+    register bool_t stat = TRUE;
+    register unsigned int nodesize;
 
-	/* like strings, arrays are really counted arrays */
-	if (!xdr_u_int(xdrs, sizep)) {
-		return (FALSE);
-	}
-	c = *sizep;
-	if ((c > maxsize) && (xdrs->x_op != XDR_FREE)) {
-		return (FALSE);
-	}
-	/* duh, look for integer overflow (fefe) */
-	{
-	  unsigned int i;
-	  nodesize = 0;
-	  for (i=c; i; --i) {
-	    unsigned int tmp=nodesize+elsize;
-	    if (tmp<nodesize)	/* overflow */
-	      return FALSE;
-	    nodesize=tmp;
-	  }
-	}
+    /* like strings, arrays are really counted arrays */
+    if (!xdr_u_int(xdrs, sizep)) {
+        return (FALSE);
+    }
+    c = *sizep;
+    if ((c > maxsize) && (xdrs->x_op != XDR_FREE)) {
+        return (FALSE);
+    }
+    /* duh, look for integer overflow (fefe) */
+    {
+      unsigned int i;
+      nodesize = 0;
+      for (i=c; i; --i) {
+        unsigned int tmp=nodesize+elsize;
+        if (tmp<nodesize)   /* overflow */
+          return FALSE;
+        nodesize=tmp;
+      }
+    }
 
-	/*
-	 * if we are deserializing, we may need to allocate an array.
-	 * We also save time by checking for a null array if we are freeing.
-	 */
-	if (target == NULL)
-		switch (xdrs->x_op) {
-		case XDR_DECODE:
-			if (c == 0)
-				return (TRUE);
-			*addrp = target = rt_malloc(nodesize);
-			if (target == NULL) {
-				rt_kprintf("xdr_array: out of memory\n");
-				return (FALSE);
-			}
-			memset(target, 0, nodesize);
-			break;
+    /*
+     * if we are deserializing, we may need to allocate an array.
+     * We also save time by checking for a null array if we are freeing.
+     */
+    if (target == NULL)
+        switch (xdrs->x_op) {
+        case XDR_DECODE:
+            if (c == 0)
+                return (TRUE);
+            *addrp = target = rt_malloc(nodesize);
+            if (target == NULL) {
+                rt_kprintf("xdr_array: out of memory\n");
+                return (FALSE);
+            }
+            memset(target, 0, nodesize);
+            break;
 
-		case XDR_FREE:
-			return (TRUE);
-		}
+        case XDR_FREE:
+            return (TRUE);
+        }
 
-	/*
-	 * now we xdr each element of array
-	 */
-	for (i = 0; (i < c) && stat; i++) {
-		stat = (*elproc) (xdrs, target, LASTUNSIGNED);
-		target += elsize;
-	}
+    /*
+     * now we xdr each element of array
+     */
+    for (i = 0; (i < c) && stat; i++) {
+        stat = (*elproc) (xdrs, target, LASTUNSIGNED);
+        target += elsize;
+    }
 
-	/*
-	 * the array may need freeing
-	 */
-	if (xdrs->x_op == XDR_FREE) {
-		rt_free(*addrp);
-		*addrp = NULL;
-	}
-	return (stat);
+    /*
+     * the array may need freeing
+     */
+    if (xdrs->x_op == XDR_FREE) {
+        rt_free(*addrp);
+        *addrp = NULL;
+    }
+    return (stat);
 }
 
 /*
@@ -685,17 +685,17 @@ bool_t xdr_array(XDR *xdrs, char **addrp, unsigned int *sizep, unsigned int maxs
  */
 bool_t xdr_vector(XDR *xdrs, char *basep, unsigned int nelem, unsigned int elemsize, xdrproc_t xdr_elem)
 {
-	register unsigned int i;
-	register char *elptr;
+    register unsigned int i;
+    register char *elptr;
 
-	elptr = basep;
-	for (i = 0; i < nelem; i++) {
-		if (!(*xdr_elem) (xdrs, elptr, LASTUNSIGNED)) {
-			return (FALSE);
-		}
-		elptr += elemsize;
-	}
-	return (TRUE);
+    elptr = basep;
+    for (i = 0; i < nelem; i++) {
+        if (!(*xdr_elem) (xdrs, elptr, LASTUNSIGNED)) {
+            return (FALSE);
+        }
+        elptr += elemsize;
+    }
+    return (TRUE);
 }
 
 
@@ -710,31 +710,31 @@ bool_t xdr_vector(XDR *xdrs, char *basep, unsigned int nelem, unsigned int elems
  */
 bool_t xdr_reference(XDR *xdrs, char **pp, unsigned int size, xdrproc_t proc)
 {
-	register char* loc = *pp;
-	register bool_t stat;
+    register char* loc = *pp;
+    register bool_t stat;
 
-	if (loc == NULL)
-		switch (xdrs->x_op) {
-		case XDR_FREE:
-			return (TRUE);
+    if (loc == NULL)
+        switch (xdrs->x_op) {
+        case XDR_FREE:
+            return (TRUE);
 
-		case XDR_DECODE:
-			*pp = loc = (char*) rt_malloc(size);
-			if (loc == NULL) {
-				rt_kprintf("xdr_reference: out of memory\n");
-				return (FALSE);
-			}
-			memset(loc, 0, (int) size);
-			break;
-		}
+        case XDR_DECODE:
+            *pp = loc = (char*) rt_malloc(size);
+            if (loc == NULL) {
+                rt_kprintf("xdr_reference: out of memory\n");
+                return (FALSE);
+            }
+            memset(loc, 0, (int) size);
+            break;
+        }
 
-	stat = (*proc) (xdrs, loc, LASTUNSIGNED);
+    stat = (*proc) (xdrs, loc, LASTUNSIGNED);
 
-	if (xdrs->x_op == XDR_FREE) {
-		rt_free(loc);
-		*pp = NULL;
-	}
-	return (stat);
+    if (xdrs->x_op == XDR_FREE) {
+        rt_free(loc);
+        *pp = NULL;
+    }
+    return (stat);
 }
 
 
@@ -760,15 +760,15 @@ bool_t xdr_reference(XDR *xdrs, char **pp, unsigned int size, xdrproc_t proc)
 bool_t xdr_pointer(XDR *xdrs, char **objpp, unsigned int obj_size, xdrproc_t xdr_obj)
 {
 
-	bool_t more_data;
+    bool_t more_data;
 
-	more_data = (*objpp != NULL);
-	if (!xdr_bool(xdrs, &more_data)) {
-		return (FALSE);
-	}
-	if (!more_data) {
-		*objpp = NULL;
-		return (TRUE);
-	}
-	return (xdr_reference(xdrs, objpp, obj_size, xdr_obj));
+    more_data = (*objpp != NULL);
+    if (!xdr_bool(xdrs, &more_data)) {
+        return (FALSE);
+    }
+    if (!more_data) {
+        *objpp = NULL;
+        return (TRUE);
+    }
+    return (xdr_reference(xdrs, objpp, obj_size, xdr_obj));
 }
diff --git a/components/dfs/filesystems/nfs/rpc/xdr.h b/components/dfs/filesystems/nfs/rpc/xdr.h
index fe38c4d120..d938f0eaa8 100644
--- a/components/dfs/filesystems/nfs/rpc/xdr.h
+++ b/components/dfs/filesystems/nfs/rpc/xdr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -93,7 +93,7 @@ enum xdr_op {
 /*
  * This is the number of bytes per unit of external data.
  */
-#define BYTES_PER_XDR_UNIT	(4)
+#define BYTES_PER_XDR_UNIT  (4)
 /*
  * This only works if the above is a power of 2.  But it's defined to be
  * 4 by the appropriate RFCs.  So it will work.  And it's normally quicker
@@ -110,35 +110,35 @@ enum xdr_op {
 typedef struct XDR XDR;
 struct XDR
   {
-    enum xdr_op x_op;		/* operation; fast additional param */
+    enum xdr_op x_op;       /* operation; fast additional param */
     struct xdr_ops
       {
-	bool_t (*x_getlong) (XDR *__xdrs, long *__lp);
-	/* get a long from underlying stream */
-	bool_t (*x_putlong) (XDR *__xdrs, const long *__lp);
-	/* put a long to " */
-	bool_t (*x_getbytes) (XDR *__xdrs, char* __addr, unsigned int __len);
-	/* get some bytes from " */
-	bool_t (*x_putbytes) (XDR *__xdrs, const char *__addr, unsigned int __len);
-	/* put some bytes to " */
-	unsigned int (*x_getpostn) (const XDR *__xdrs);
-	/* returns bytes off from beginning */
-	bool_t (*x_setpostn) (XDR *__xdrs, unsigned int __pos);
-	/* lets you reposition the stream */
-	int32_t *(*x_inline) (XDR *__xdrs, unsigned int __len);
-	/* buf quick ptr to buffered data */
-	void (*x_destroy) (XDR *__xdrs);
-	/* free privates of this xdr_stream */
-	bool_t (*x_getint32) (XDR *__xdrs, int32_t *__ip);
-	/* get a int from underlying stream */
-	bool_t (*x_putint32) (XDR *__xdrs, const int32_t *__ip);
-	/* put a int to " */
+    bool_t (*x_getlong) (XDR *__xdrs, long *__lp);
+    /* get a long from underlying stream */
+    bool_t (*x_putlong) (XDR *__xdrs, const long *__lp);
+    /* put a long to " */
+    bool_t (*x_getbytes) (XDR *__xdrs, char* __addr, unsigned int __len);
+    /* get some bytes from " */
+    bool_t (*x_putbytes) (XDR *__xdrs, const char *__addr, unsigned int __len);
+    /* put some bytes to " */
+    unsigned int (*x_getpostn) (const XDR *__xdrs);
+    /* returns bytes off from beginning */
+    bool_t (*x_setpostn) (XDR *__xdrs, unsigned int __pos);
+    /* lets you reposition the stream */
+    int32_t *(*x_inline) (XDR *__xdrs, unsigned int __len);
+    /* buf quick ptr to buffered data */
+    void (*x_destroy) (XDR *__xdrs);
+    /* free privates of this xdr_stream */
+    bool_t (*x_getint32) (XDR *__xdrs, int32_t *__ip);
+    /* get a int from underlying stream */
+    bool_t (*x_putint32) (XDR *__xdrs, const int32_t *__ip);
+    /* put a int to " */
       }
      *x_ops;
-    char* x_public;		/* users' data */
-    char* x_private;		/* pointer to private data */
-    char* x_base;		/* private used for position info */
-    unsigned int x_handy;	/* extra private word */
+    char* x_public;     /* users' data */
+    char* x_private;        /* pointer to private data */
+    char* x_base;       /* private used for position info */
+    unsigned int x_handy;   /* extra private word */
   };
 
 /*
@@ -173,51 +173,51 @@ typedef bool_t (*xdrproc_t) (XDR *, void *,...);
 #define xdr_putint32(xdrs, int32p)                      \
         (*(xdrs)->x_ops->x_putint32)(xdrs, int32p)
 
-#define XDR_GETLONG(xdrs, longp)			\
-	(*(xdrs)->x_ops->x_getlong)(xdrs, longp)
-#define xdr_getlong(xdrs, longp)			\
-	(*(xdrs)->x_ops->x_getlong)(xdrs, longp)
+#define XDR_GETLONG(xdrs, longp)            \
+    (*(xdrs)->x_ops->x_getlong)(xdrs, longp)
+#define xdr_getlong(xdrs, longp)            \
+    (*(xdrs)->x_ops->x_getlong)(xdrs, longp)
 
-#define XDR_PUTLONG(xdrs, longp)			\
-	(*(xdrs)->x_ops->x_putlong)(xdrs, longp)
-#define xdr_putlong(xdrs, longp)			\
-	(*(xdrs)->x_ops->x_putlong)(xdrs, longp)
+#define XDR_PUTLONG(xdrs, longp)            \
+    (*(xdrs)->x_ops->x_putlong)(xdrs, longp)
+#define xdr_putlong(xdrs, longp)            \
+    (*(xdrs)->x_ops->x_putlong)(xdrs, longp)
 
-#define XDR_GETBYTES(xdrs, addr, len)			\
-	(*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len)
-#define xdr_getbytes(xdrs, addr, len)			\
-	(*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len)
+#define XDR_GETBYTES(xdrs, addr, len)           \
+    (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len)
+#define xdr_getbytes(xdrs, addr, len)           \
+    (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len)
 
-#define XDR_PUTBYTES(xdrs, addr, len)			\
-	(*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
-#define xdr_putbytes(xdrs, addr, len)			\
-	(*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
+#define XDR_PUTBYTES(xdrs, addr, len)           \
+    (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
+#define xdr_putbytes(xdrs, addr, len)           \
+    (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
 
-#define XDR_GETPOS(xdrs)				\
-	(*(xdrs)->x_ops->x_getpostn)(xdrs)
-#define xdr_getpos(xdrs)				\
-	(*(xdrs)->x_ops->x_getpostn)(xdrs)
+#define XDR_GETPOS(xdrs)                \
+    (*(xdrs)->x_ops->x_getpostn)(xdrs)
+#define xdr_getpos(xdrs)                \
+    (*(xdrs)->x_ops->x_getpostn)(xdrs)
 
-#define XDR_SETPOS(xdrs, pos)				\
-	(*(xdrs)->x_ops->x_setpostn)(xdrs, pos)
-#define xdr_setpos(xdrs, pos)				\
-	(*(xdrs)->x_ops->x_setpostn)(xdrs, pos)
+#define XDR_SETPOS(xdrs, pos)               \
+    (*(xdrs)->x_ops->x_setpostn)(xdrs, pos)
+#define xdr_setpos(xdrs, pos)               \
+    (*(xdrs)->x_ops->x_setpostn)(xdrs, pos)
 
-#define	XDR_INLINE(xdrs, len)				\
-	(*(xdrs)->x_ops->x_inline)(xdrs, len)
-#define	xdr_inline(xdrs, len)				\
-	(*(xdrs)->x_ops->x_inline)(xdrs, len)
+#define XDR_INLINE(xdrs, len)               \
+    (*(xdrs)->x_ops->x_inline)(xdrs, len)
+#define xdr_inline(xdrs, len)               \
+    (*(xdrs)->x_ops->x_inline)(xdrs, len)
 
-#define	XDR_DESTROY(xdrs)					\
-	do {							\
-		if ((xdrs)->x_ops->x_destroy)			\
-			(*(xdrs)->x_ops->x_destroy)(xdrs);	\
-	} while (0)
-#define	xdr_destroy(xdrs)					\
-	do {							\
-		if ((xdrs)->x_ops->x_destroy)			\
-			(*(xdrs)->x_ops->x_destroy)(xdrs);	\
-	} while (0)
+#define XDR_DESTROY(xdrs)                   \
+    do {                            \
+        if ((xdrs)->x_ops->x_destroy)           \
+            (*(xdrs)->x_ops->x_destroy)(xdrs);  \
+    } while (0)
+#define xdr_destroy(xdrs)                   \
+    do {                            \
+        if ((xdrs)->x_ops->x_destroy)           \
+            (*(xdrs)->x_ops->x_destroy)(xdrs);  \
+    } while (0)
 
 /*
  * Support struct for discriminated unions.
@@ -261,10 +261,10 @@ struct xdr_discrim
  * and shouldn't be used any longer. Code which use this defines or longs
  * in the RPC code will not work on 64bit Solaris platforms !
  */
-#define IXDR_GET_LONG(buf)	      ((long)IXDR_GET_U_INT32(buf))
-#define IXDR_PUT_LONG(buf, v)	      ((long)IXDR_PUT_INT32(buf, (long)(v)))
-#define IXDR_GET_U_LONG(buf)	      ((unsigned long)IXDR_GET_LONG(buf))
-#define IXDR_PUT_U_LONG(buf, v)	      IXDR_PUT_LONG(buf, (long)(v))
+#define IXDR_GET_LONG(buf)        ((long)IXDR_GET_U_INT32(buf))
+#define IXDR_PUT_LONG(buf, v)         ((long)IXDR_PUT_INT32(buf, (long)(v)))
+#define IXDR_GET_U_LONG(buf)          ((unsigned long)IXDR_GET_LONG(buf))
+#define IXDR_PUT_U_LONG(buf, v)       IXDR_PUT_LONG(buf, (long)(v))
 
 
 #define IXDR_GET_BOOL(buf)            ((bool_t)IXDR_GET_LONG(buf))
@@ -305,24 +305,24 @@ extern bool_t xdr_uint64_t (XDR *__xdrs, uint64_t *__up);
 extern bool_t xdr_bool (XDR *__xdrs, bool_t *__bp);
 extern bool_t xdr_enum (XDR *__xdrs, enum_t *__ep);
 extern bool_t xdr_array (XDR * _xdrs, char* *__addrp, unsigned int *__sizep,
-			 unsigned int __maxsize, unsigned int __elsize, xdrproc_t __elproc);
+             unsigned int __maxsize, unsigned int __elsize, xdrproc_t __elproc);
 extern bool_t xdr_bytes (XDR *xdrs, char **cpp, unsigned int *sizep,
-			 unsigned int maxsize);
+             unsigned int maxsize);
 extern bool_t xdr_opaque (XDR *__xdrs, char* __cp, unsigned int __cnt);
 extern bool_t xdr_string (XDR *xdrs, char **cpp, unsigned int maxsize);
 extern bool_t xdr_union (XDR *__xdrs, enum_t *__dscmp, char *__unp,
-			 const struct xdr_discrim *__choices,
-			 xdrproc_t dfault);
+             const struct xdr_discrim *__choices,
+             xdrproc_t dfault);
 extern bool_t xdr_char (XDR *__xdrs, char *__cp);
 extern bool_t xdr_u_char (XDR *__xdrs, unsigned char *__cp);
 extern bool_t xdr_vector (XDR *__xdrs, char *__basep, unsigned int __nelem,
-			  unsigned int __elemsize, xdrproc_t __xdr_elem);
+              unsigned int __elemsize, xdrproc_t __xdr_elem);
 extern bool_t xdr_float (XDR *__xdrs, float *__fp);
 extern bool_t xdr_double (XDR *__xdrs, double *__dp);
 extern bool_t xdr_reference (XDR *__xdrs, char* *__xpp, unsigned int __size,
-			     xdrproc_t __proc);
+                 xdrproc_t __proc);
 extern bool_t xdr_pointer (XDR *__xdrs, char **__objpp,
-			   unsigned int __obj_size, xdrproc_t __xdr_obj);
+               unsigned int __obj_size, xdrproc_t __xdr_obj);
 extern bool_t xdr_wrapstring (XDR *__xdrs, char **cpp);
 extern unsigned long xdr_sizeof (xdrproc_t, void *);
 
@@ -346,13 +346,13 @@ extern bool_t xdr_netobj (XDR *__xdrs, struct netobj *__np);
 
 /* XDR using memory buffers */
 extern void xdrmem_create (XDR *__xdrs, const char* __addr,
-			   unsigned int __size, enum xdr_op __xop);
+               unsigned int __size, enum xdr_op __xop);
 
 /* XDR pseudo records for tcp */
 extern void xdrrec_create (XDR *__xdrs, unsigned int __sendsize,
-			   unsigned int __recvsize, char* __tcp_handle,
-			   int (*__readit) (char *, char *, int),
-			   int (*__writeit) (char *, char *, int));
+               unsigned int __recvsize, char* __tcp_handle,
+               int (*__readit) (char *, char *, int),
+               int (*__writeit) (char *, char *, int));
 
 /* make end of xdr record */
 extern bool_t xdrrec_endofrecord (XDR *__xdrs, bool_t __sendnow);
diff --git a/components/dfs/filesystems/nfs/rpc/xdr_mem.c b/components/dfs/filesystems/nfs/rpc/xdr_mem.c
index ca69ed3647..7bd4737e16 100644
--- a/components/dfs/filesystems/nfs/rpc/xdr_mem.c
+++ b/components/dfs/filesystems/nfs/rpc/xdr_mem.c
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  */
-/* @(#)xdr_mem.c	2.1 88/07/29 4.0 RPCSRC */
+/* @(#)xdr_mem.c    2.1 88/07/29 4.0 RPCSRC */
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
@@ -14,23 +14,23 @@
  * may copy or modify Sun RPC without charge, but are not authorized
  * to license or distribute it to anyone else except as part of a product or
  * program developed by the user.
- * 
+ *
  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- * 
+ *
  * Sun RPC is provided with no support and without any obligation on the
  * part of Sun Microsystems, Inc. to assist in its use, correction,
  * modification or enhancement.
- * 
+ *
  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  * OR ANY PART THEREOF.
- * 
+ *
  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  * or profits or other special, indirect and consequential damages, even if
  * Sun has been advised of the possibility of such damages.
- * 
+ *
  * Sun Microsystems, Inc.
  * 2550 Garcia Avenue
  * Mountain View, California  94043
@@ -65,30 +65,30 @@ static int32_t *xdrmem_inline (XDR *, unsigned int);
 static void xdrmem_destroy (XDR *);
 
 static struct xdr_ops xdrmem_ops = {
-	xdrmem_getlong,
-	xdrmem_putlong,
-	xdrmem_getbytes,
-	xdrmem_putbytes,
-	xdrmem_getpos,
-	xdrmem_setpos,
-	xdrmem_inline,
-	xdrmem_destroy,
-	NULL,
-	NULL
+    xdrmem_getlong,
+    xdrmem_putlong,
+    xdrmem_getbytes,
+    xdrmem_putbytes,
+    xdrmem_getpos,
+    xdrmem_setpos,
+    xdrmem_inline,
+    xdrmem_destroy,
+    NULL,
+    NULL
 };
 
 
 /*
  * The procedure xdrmem_create initializes a stream descriptor for a
- * memory buffer.  
+ * memory buffer.
  */
 void
 xdrmem_create (XDR *xdrs, const char* addr, unsigned int size, enum xdr_op op)
 {
-	xdrs->x_op = op;
-	xdrs->x_ops = &xdrmem_ops;
-	xdrs->x_private = xdrs->x_base = (char*)addr;
-	xdrs->x_handy = size;
+    xdrs->x_op = op;
+    xdrs->x_ops = &xdrmem_ops;
+    xdrs->x_private = xdrs->x_base = (char*)addr;
+    xdrs->x_handy = size;
 }
 
 static void
@@ -140,7 +140,7 @@ xdrmem_putbytes (XDR *xdrs, const char *addr, unsigned int len)
 
 static unsigned int xdrmem_getpos (const XDR *xdrs)
 {
-	return ((unsigned long) xdrs->x_private - (unsigned long) xdrs->x_base);
+    return ((unsigned long) xdrs->x_private - (unsigned long) xdrs->x_base);
 }
 
 static bool_t xdrmem_setpos(XDR *xdrs, unsigned int pos)
@@ -149,9 +149,9 @@ static bool_t xdrmem_setpos(XDR *xdrs, unsigned int pos)
   register char* lastaddr = xdrs->x_private + xdrs->x_handy;
 
   if ((long) newaddr > (long) lastaddr
-	  || (UINT_MAX < LONG_MAX
-		  && (long) UINT_MAX < (long) lastaddr - (long) newaddr))
-	  return (FALSE);
+      || (UINT_MAX < LONG_MAX
+          && (long) UINT_MAX < (long) lastaddr - (long) newaddr))
+      return (FALSE);
   xdrs->x_private = newaddr;
   xdrs->x_handy = (long) lastaddr - (long) newaddr;
   return (TRUE);
@@ -160,13 +160,13 @@ static bool_t xdrmem_setpos(XDR *xdrs, unsigned int pos)
 static int32_t *
 xdrmem_inline (XDR *xdrs, unsigned int len)
 {
-	int32_t *buf = 0;
+    int32_t *buf = 0;
 
-	if (xdrs->x_handy >= len) {
-		xdrs->x_handy -= len;
-		buf = (int32_t *) xdrs->x_private;
-		xdrs->x_private += len;
-	}
-	return (buf);
+    if (xdrs->x_handy >= len) {
+        xdrs->x_handy -= len;
+        buf = (int32_t *) xdrs->x_private;
+        xdrs->x_private += len;
+    }
+    return (buf);
 }
 
diff --git a/components/dfs/filesystems/ramfs/dfs_ramfs.c b/components/dfs/filesystems/ramfs/dfs_ramfs.c
index aa85081e1e..cc58590de2 100644
--- a/components/dfs/filesystems/ramfs/dfs_ramfs.c
+++ b/components/dfs/filesystems/ramfs/dfs_ramfs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/ramfs/dfs_ramfs.h b/components/dfs/filesystems/ramfs/dfs_ramfs.h
index 4975ecb332..87adde99a5 100644
--- a/components/dfs/filesystems/ramfs/dfs_ramfs.h
+++ b/components/dfs/filesystems/ramfs/dfs_ramfs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/romfs/dfs_romfs.c b/components/dfs/filesystems/romfs/dfs_romfs.c
index 17dbee52f5..1b2693fc3b 100644
--- a/components/dfs/filesystems/romfs/dfs_romfs.c
+++ b/components/dfs/filesystems/romfs/dfs_romfs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/romfs/dfs_romfs.h b/components/dfs/filesystems/romfs/dfs_romfs.h
index ba6a3d7dfa..affa4bf993 100644
--- a/components/dfs/filesystems/romfs/dfs_romfs.h
+++ b/components/dfs/filesystems/romfs/dfs_romfs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/romfs/romfs.c b/components/dfs/filesystems/romfs/romfs.c
index cfce09a095..847fcc6e27 100644
--- a/components/dfs/filesystems/romfs/romfs.c
+++ b/components/dfs/filesystems/romfs/romfs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/skeleton/skeleton.c b/components/dfs/filesystems/skeleton/skeleton.c
index 0c20513e82..b8dc06e9b5 100644
--- a/components/dfs/filesystems/skeleton/skeleton.c
+++ b/components/dfs/filesystems/skeleton/skeleton.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/skeleton/skeleton.h b/components/dfs/filesystems/skeleton/skeleton.h
index 8a783eace5..30c721d14f 100644
--- a/components/dfs/filesystems/skeleton/skeleton.h
+++ b/components/dfs/filesystems/skeleton/skeleton.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/filesystems/uffs/AUTHORS b/components/dfs/filesystems/uffs/AUTHORS
deleted file mode 100644
index adaedefb4f..0000000000
--- a/components/dfs/filesystems/uffs/AUTHORS
+++ /dev/null
@@ -1 +0,0 @@
-Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
diff --git a/components/dfs/filesystems/uffs/CMakeLists.txt b/components/dfs/filesystems/uffs/CMakeLists.txt
deleted file mode 100644
index cc36f060e1..0000000000
--- a/components/dfs/filesystems/uffs/CMakeLists.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-CMAKE_MINIMUM_REQUIRED(VERSION 2.6 )
-PROJECT( uffs )
-
-SET(CMAKE_CXX_FLAGS_VGL "-O0 -g")
-SET(CMAKE_C_FLAGS_VGL "-O0 -g")
-
-SET(CMAKE_C_FLAGS_GCOV "-g -O0 -Wall -fprofile-arcs -ftest-coverage")
-SET(CMAKE_CXX_FLAGS_GCOV "-g -O0 -Wall -fprofile-arcs -ftest-coverage")
-SET(CMAKE_EXE_LINKER_FLAGS_GCOV "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage -lgcov")
-
-IF (CMAKE_COMPILER_IS_GNUCC)
-IF (APPLE)
-        SET(CMAKE_CXX_FLAGS "-fPIC -Wall -Werror -g -rdynamic")
-        SET(CMAKE_C_FLAGS "-fPIC -Wall -Werror -g -rdynamic")
-ELSE ()
-	SET(CMAKE_CXX_FLAGS "-fPIC -Wall -Werror -Wclobbered -Wempty-body -Wignored-qualifiers -Wmissing-parameter-type -Woverride-init -Wtype-limits -Wuninitialized -g -rdynamic")
-	SET(CMAKE_C_FLAGS "-fPIC -Wall -Werror -Wclobbered -Wempty-body -Wignored-qualifiers -Wmissing-parameter-type -Woverride-init -Wtype-limits -Wuninitialized -g -rdynamic")
-ENDIF()
-ENDIF()
-
-IF (UNIX)
-	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DUNIX")
-	SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DUNIX")
-ENDIF()
-
-ADD_SUBDIRECTORY( src )
-
diff --git a/components/dfs/filesystems/uffs/COPYING b/components/dfs/filesystems/uffs/COPYING
deleted file mode 100644
index d511905c16..0000000000
--- a/components/dfs/filesystems/uffs/COPYING
+++ /dev/null
@@ -1,339 +0,0 @@
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-			    Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Lesser General Public License instead.)  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
-  To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must show them these terms so they know their
-rights.
-
-  We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
-  Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software.  If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
-
-  Finally, any free program is threatened constantly by software
-patents.  We wish to avoid the danger that redistributors of a free
-program will individually obtain patent licenses, in effect making the
-program proprietary.  To prevent this, we have made it clear that any
-patent must be licensed for everyone's free use or not licensed at all.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-		    GNU GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License.  The "Program", below,
-refers to any such program or work, and a "work based on the Program"
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
-either verbatim or with modifications and/or translated into another
-language.  (Hereinafter, translation is included without limitation in
-the term "modification".)  Each licensee is addressed as "you".
-
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
-
-  1. You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
-and give any other recipients of the Program a copy of this License
-along with the Program.
-
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
-
-  2. You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
-
-    a) You must cause the modified files to carry prominent notices
-    stating that you changed the files and the date of any change.
-
-    b) You must cause any work that you distribute or publish, that in
-    whole or in part contains or is derived from the Program or any
-    part thereof, to be licensed as a whole at no charge to all third
-    parties under the terms of this License.
-
-    c) If the modified program normally reads commands interactively
-    when run, you must cause it, when started running for such
-    interactive use in the most ordinary way, to print or display an
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-    a warranty) and that users may redistribute the program under
-    these conditions, and telling the user how to view a copy of this
-    License.  (Exception: if the Program itself is interactive but
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-    the Program is not required to print an announcement.)
-
-These requirements apply to the modified work as a whole.  If
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-distribute the same sections as part of a whole which is a work based
-on the Program, the distribution of the whole must be on the terms of
-this License, whose permissions for other licensees extend to the
-entire whole, and thus to each and every part regardless of who wrote it.
-
-Thus, it is not the intent of this section to claim rights or contest
-your rights to work written entirely by you; rather, the intent is to
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-
-In addition, mere aggregation of another work not based on the Program
-with the Program (or with a work based on the Program) on a volume of
-a storage or distribution medium does not bring the other work under
-the scope of this License.
-
-  3. You may copy and distribute the Program (or a work based on it,
-under Section 2) in object code or executable form under the terms of
-Sections 1 and 2 above provided that you also do one of the following:
-
-    a) Accompany it with the complete corresponding machine-readable
-    source code, which must be distributed under the terms of Sections
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-    to distribute corresponding source code.  (This alternative is
-    allowed only for noncommercial distribution and only if you
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-    an offer, in accord with Subsection b above.)
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-The source code for a work means the preferred form of the work for
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-If distribution of executable or object code is made by offering
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-access to copy the source code from the same place counts as
-distribution of the source code, even though third parties are not
-compelled to copy the source along with the object code.
-
-  4. You may not copy, modify, sublicense, or distribute the Program
-except as expressly provided under this License.  Any attempt
-otherwise to copy, modify, sublicense or distribute the Program is
-void, and will automatically terminate your rights under this License.
-However, parties who have received copies, or rights, from you under
-this License will not have their licenses terminated so long as such
-parties remain in full compliance.
-
-  5. You are not required to accept this License, since you have not
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-distribute the Program or its derivative works.  These actions are
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-modifying or distributing the Program (or any work based on the
-Program), you indicate your acceptance of this License to do so, and
-all its terms and conditions for copying, distributing or modifying
-the Program or works based on it.
-
-  6. Each time you redistribute the Program (or any work based on the
-Program), the recipient automatically receives a license from the
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-restrictions on the recipients' exercise of the rights granted herein.
-You are not responsible for enforcing compliance by third parties to
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-  7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-conditions are imposed on you (whether by court order, agreement or
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-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
-refrain entirely from distribution of the Program.
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-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
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-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
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-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
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-
-			    NO WARRANTY
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-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
-
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
-		     END OF TERMS AND CONDITIONS
-
-	    How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
-
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.
diff --git a/components/dfs/filesystems/uffs/Doxyfile b/components/dfs/filesystems/uffs/Doxyfile
deleted file mode 100644
index f46a4c0af1..0000000000
--- a/components/dfs/filesystems/uffs/Doxyfile
+++ /dev/null
@@ -1,275 +0,0 @@
-# Doxyfile 1.4.1-KDevelop
-
-#---------------------------------------------------------------------------
-# Project related configuration options
-#---------------------------------------------------------------------------
-PROJECT_NAME           = uffs-doc
-PROJECT_NUMBER         = 0.1
-OUTPUT_DIRECTORY       = doc/doxygen-doc
-CREATE_SUBDIRS         = NO
-OUTPUT_LANGUAGE        = English
-USE_WINDOWS_ENCODING   = NO
-BRIEF_MEMBER_DESC      = YES
-REPEAT_BRIEF           = YES
-ABBREVIATE_BRIEF       = "The $name class" \
-                         "The $name widget" \
-                         "The $name file" \
-                         is \
-                         provides \
-                         specifies \
-                         contains \
-                         represents \
-                         a \
-                         an \
-                         the
-ALWAYS_DETAILED_SEC    = NO
-INLINE_INHERITED_MEMB  = NO
-FULL_PATH_NAMES        = YES
-STRIP_FROM_PATH        = ./
-STRIP_FROM_INC_PATH    = 
-SHORT_NAMES            = NO
-JAVADOC_AUTOBRIEF      = NO
-MULTILINE_CPP_IS_BRIEF = NO
-DETAILS_AT_TOP         = NO
-INHERIT_DOCS           = YES
-DISTRIBUTE_GROUP_DOC   = NO
-TAB_SIZE               = 4
-ALIASES                = 
-OPTIMIZE_OUTPUT_FOR_C  = YES
-OPTIMIZE_OUTPUT_JAVA   = NO
-SUBGROUPING            = YES
-#---------------------------------------------------------------------------
-# Build related configuration options
-#---------------------------------------------------------------------------
-EXTRACT_ALL            = YES
-EXTRACT_PRIVATE        = NO
-EXTRACT_STATIC         = NO
-EXTRACT_LOCAL_CLASSES  = NO
-EXTRACT_LOCAL_METHODS  = NO
-HIDE_UNDOC_MEMBERS     = NO
-HIDE_UNDOC_CLASSES     = NO
-HIDE_FRIEND_COMPOUNDS  = YES
-HIDE_IN_BODY_DOCS      = NO
-INTERNAL_DOCS          = YES
-CASE_SENSE_NAMES       = NO
-HIDE_SCOPE_NAMES       = NO
-SHOW_INCLUDE_FILES     = YES
-INLINE_INFO            = YES
-SORT_MEMBER_DOCS       = YES
-SORT_BRIEF_DOCS        = YES
-SORT_BY_SCOPE_NAME     = YES
-GENERATE_TODOLIST      = YES
-GENERATE_TESTLIST      = YES
-GENERATE_BUGLIST       = YES
-GENERATE_DEPRECATEDLIST= YES
-ENABLED_SECTIONS       = 
-MAX_INITIALIZER_LINES  = 30
-SHOW_USED_FILES        = YES
-SHOW_DIRECTORIES       = YES
-FILE_VERSION_FILTER    = 
-#---------------------------------------------------------------------------
-# configuration options related to warning and progress messages
-#---------------------------------------------------------------------------
-QUIET                  = NO
-WARNINGS               = YES
-WARN_IF_UNDOCUMENTED   = YES
-WARN_IF_DOC_ERROR      = YES
-WARN_NO_PARAMDOC       = NO
-WARN_FORMAT            = "$file:$line: $text"
-WARN_LOGFILE           = 
-#---------------------------------------------------------------------------
-# configuration options related to the input files
-#---------------------------------------------------------------------------
-INPUT                  = ./src
-FILE_PATTERNS          = *.c \
-                         *.cc \
-                         *.cxx \
-                         *.cpp \
-                         *.c++ \
-                         *.java \
-                         *.ii \
-                         *.ixx \
-                         *.ipp \
-                         *.i++ \
-                         *.inl \
-                         *.h \
-                         *.hh \
-                         *.hxx \
-                         *.hpp \
-                         *.h++ \
-                         *.idl \
-                         *.odl \
-                         *.cs \
-                         *.php \
-                         *.php3 \
-                         *.inc \
-                         *.m \
-                         *.mm \
-                         *.dox \
-                         *.C \
-                         *.CC \
-                         *.C++ \
-                         *.II \
-                         *.I++ \
-                         *.H \
-                         *.HH \
-                         *.H++ \
-                         *.CS \
-                         *.PHP \
-                         *.PHP3 \
-                         *.M \
-                         *.MM \
-                         *.C \
-                         *.H \
-                         *.tlh \
-                         *.diff \
-                         *.patch \
-                         *.moc \
-                         *.xpm \
-                         *.dox
-RECURSIVE              = YES
-EXCLUDE                = 
-EXCLUDE_SYMLINKS       = NO
-EXCLUDE_PATTERNS       = 
-EXAMPLE_PATH           = 
-EXAMPLE_PATTERNS       = *
-EXAMPLE_RECURSIVE      = NO
-IMAGE_PATH             = 
-INPUT_FILTER           = 
-FILTER_PATTERNS        = 
-FILTER_SOURCE_FILES    = NO
-#---------------------------------------------------------------------------
-# configuration options related to source browsing
-#---------------------------------------------------------------------------
-SOURCE_BROWSER         = YES
-INLINE_SOURCES         = NO
-STRIP_CODE_COMMENTS    = YES
-REFERENCED_BY_RELATION = YES
-REFERENCES_RELATION    = YES
-VERBATIM_HEADERS       = YES
-#---------------------------------------------------------------------------
-# configuration options related to the alphabetical class index
-#---------------------------------------------------------------------------
-ALPHABETICAL_INDEX     = YES
-COLS_IN_ALPHA_INDEX    = 5
-IGNORE_PREFIX          = 
-#---------------------------------------------------------------------------
-# configuration options related to the HTML output
-#---------------------------------------------------------------------------
-GENERATE_HTML          = YES
-HTML_OUTPUT            = html
-HTML_FILE_EXTENSION    = .html
-HTML_HEADER            = 
-HTML_FOOTER            = 
-HTML_STYLESHEET        = 
-HTML_ALIGN_MEMBERS     = YES
-GENERATE_HTMLHELP      = NO
-CHM_FILE               = 
-HHC_LOCATION           = 
-GENERATE_CHI           = NO
-BINARY_TOC             = NO
-TOC_EXPAND             = NO
-DISABLE_INDEX          = NO
-ENUM_VALUES_PER_LINE   = 4
-GENERATE_TREEVIEW      = YES
-TREEVIEW_WIDTH         = 250
-#---------------------------------------------------------------------------
-# configuration options related to the LaTeX output
-#---------------------------------------------------------------------------
-GENERATE_LATEX         = NO
-LATEX_OUTPUT           = latex
-LATEX_CMD_NAME         = latex
-MAKEINDEX_CMD_NAME     = makeindex
-COMPACT_LATEX          = NO
-PAPER_TYPE             = a4wide
-EXTRA_PACKAGES         = 
-LATEX_HEADER           = 
-PDF_HYPERLINKS         = NO
-USE_PDFLATEX           = NO
-LATEX_BATCHMODE        = NO
-LATEX_HIDE_INDICES     = NO
-#---------------------------------------------------------------------------
-# configuration options related to the RTF output
-#---------------------------------------------------------------------------
-GENERATE_RTF           = NO
-RTF_OUTPUT             = rtf
-COMPACT_RTF            = NO
-RTF_HYPERLINKS         = NO
-RTF_STYLESHEET_FILE    = 
-RTF_EXTENSIONS_FILE    = 
-#---------------------------------------------------------------------------
-# configuration options related to the man page output
-#---------------------------------------------------------------------------
-GENERATE_MAN           = NO
-MAN_OUTPUT             = man
-MAN_EXTENSION          = .3
-MAN_LINKS              = NO
-#---------------------------------------------------------------------------
-# configuration options related to the XML output
-#---------------------------------------------------------------------------
-GENERATE_XML           = NO
-XML_OUTPUT             = xml
-XML_SCHEMA             = 
-XML_DTD                = 
-XML_PROGRAMLISTING     = YES
-#---------------------------------------------------------------------------
-# configuration options for the AutoGen Definitions output
-#---------------------------------------------------------------------------
-GENERATE_AUTOGEN_DEF   = NO
-#---------------------------------------------------------------------------
-# configuration options related to the Perl module output
-#---------------------------------------------------------------------------
-GENERATE_PERLMOD       = NO
-PERLMOD_LATEX          = NO
-PERLMOD_PRETTY         = YES
-PERLMOD_MAKEVAR_PREFIX = 
-#---------------------------------------------------------------------------
-# Configuration options related to the preprocessor   
-#---------------------------------------------------------------------------
-ENABLE_PREPROCESSING   = YES
-MACRO_EXPANSION        = NO
-EXPAND_ONLY_PREDEF     = NO
-SEARCH_INCLUDES        = YES
-INCLUDE_PATH           = 
-INCLUDE_FILE_PATTERNS  = 
-PREDEFINED             = 
-EXPAND_AS_DEFINED      = 
-SKIP_FUNCTION_MACROS   = YES
-#---------------------------------------------------------------------------
-# Configuration::additions related to external references   
-#---------------------------------------------------------------------------
-TAGFILES               = 
-GENERATE_TAGFILE       = uffs.tag
-ALLEXTERNALS           = NO
-EXTERNAL_GROUPS        = YES
-PERL_PATH              = /usr/bin/perl
-#---------------------------------------------------------------------------
-# Configuration options related to the dot tool   
-#---------------------------------------------------------------------------
-CLASS_DIAGRAMS         = YES
-HIDE_UNDOC_RELATIONS   = YES
-HAVE_DOT               = NO
-CLASS_GRAPH            = YES
-COLLABORATION_GRAPH    = YES
-GROUP_GRAPHS           = YES
-UML_LOOK               = NO
-TEMPLATE_RELATIONS     = NO
-INCLUDE_GRAPH          = YES
-INCLUDED_BY_GRAPH      = YES
-CALL_GRAPH             = NO
-GRAPHICAL_HIERARCHY    = YES
-DIRECTORY_GRAPH        = YES
-DOT_IMAGE_FORMAT       = png
-DOT_PATH               = 
-DOTFILE_DIRS           = 
-MAX_DOT_GRAPH_WIDTH    = 1024
-MAX_DOT_GRAPH_HEIGHT   = 1024
-MAX_DOT_GRAPH_DEPTH    = 1000
-DOT_TRANSPARENT        = NO
-DOT_MULTI_TARGETS      = NO
-GENERATE_LEGEND        = YES
-DOT_CLEANUP            = YES
-#---------------------------------------------------------------------------
-# Configuration::additions related to the search engine   
-#---------------------------------------------------------------------------
-SEARCHENGINE           = NO
diff --git a/components/dfs/filesystems/uffs/README b/components/dfs/filesystems/uffs/README
deleted file mode 100644
index 0828cf134c..0000000000
--- a/components/dfs/filesystems/uffs/README
+++ /dev/null
@@ -1,275 +0,0 @@
-UFFS: Ultra-low-cost Flash File System
-
-Project: http://uffs.sf.net/
-Blog:    http://all-about-uffs.blogspot.com/
-Q/A:     http://groups.google.com/group/uffs/
-
-Author: Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-INTRODUCTION
-------------
-
-UFFS is a nand flash file system designed for embedded system.
-
-UFFS have some unique and advanced features:
-  * Low cost: e.g. it needs only 41K bytes RAM for 64MB NAND flash (page size 2048).
-    
-  * Fast booting: it reads only a few spares from each block, typically
-    mounting a fully filled file system (Gbits) within one second.
-    
-  * Superb Reliability: 
-    - The file system is designed for the embedded system which may 
-        frequently lost power/reset without care.
-    - Journal file system, the file system will automatically rollback
-        to the last state when lost power on the middle of flash programing.
-    - When 'write' return without error, the data is guarenteed been
-        saved on flash.
-
-  * Fast file create/read/write/seek.  
-  * Bad-block tolerant, ECC enable and good ware-leveling.
-  * There is no garbage collection needed for UFFS.
-  * Support multiple NAND flash class in one system.
-  * Support bare flash hardware, no operating system needed. 
-  * Support static memory allocation (works without 'malloc').
-  * Fully simulated on PC (Windows/Linux) platform.
-
-Disadvantage:
-  * space inefficency for small files: UFFS use at least one
-   'block'(the minial erase unit for NAND flash, e.g. 16K ) for a file.
-  * maximum supported blocks: 2^16 = 65535
-
-Memory consuming example:
-    For page size = 512:
-        [VARY]Tree nodes: 16 * total_blocks 
-        [CONST]Page Bufs: MAX_CACHED_BUFFERS(10) * (40 + pageSize(512)) = 5.4K 
-        [CONST]Block Info caches: (24 + 14 * pages_per_block (32)) * MAX_CACHED_BLOCK_INFO (10) = 4.6K
-
-        Example 1: 128M bytes NAND, 8192 blocks, total memory cost:
-            (16 * 8192)128K + 5.4K + 4.6K = 138K bytes.
-		
-        Example 2: 32M Bytes NAND, 2048 blocks, total memory cost:
-            (16 * 2048)32K + 5.4K + 4.6K = 42K bytes.
-		
-        Example 3: 16M bytes NAND, 1024 blocks, total memory cost:
-            (16 * 1024)16K + 5.4K + 4.6K = 26K bytes.
-
-    For page size = 2048:
-        [VARY]Tree nodes: 16 * total_blocks 
-        [CONST]Page Bufs: MAX_CACHED_BUFFERS(10) * (40 + pageSize(2048)) = 20.4K 
-        [CONST]Block Info caches: (24 + 14 * pages_per_block (32)) * MAX_CACHED_BLOCK_INFO (10) = 4.6K
-
-        Example 1: 512M bytes NAND, 8192 blocks, total memory cost:
-            (16 * 8192)128K + 20.4K + 4.6K = 153K bytes.
-		
-        Example 2: 128M Bytes NAND, 2048 blocks, total memory cost:
-            (16 * 2048)32K + 20.4K + 4.6K = 57K bytes.
-		
-        Example 3: 64M bytes NAND, 1024 blocks, total memory cost:
-            (16 * 1024)16K + 20.4K + 4.6K = 41K bytes.
-            
-
-BUILD SIMULATOR REQUIREMENT
----------------------------
-From V1.2.0, build uffs simulator requires 'cmake'.
-'cmake' can be downloaded from: http://www.cmake.org/
-
-or, under Debian/Ubuntu:
-  sudo apt-get install cmake
-
-BUILD SIMULATOR ON LINUX
-------------------------
-1) create a 'build' dir:
-
-mkdir -p ~/build/uffs
-
-2) create Makefiles and build:
-  cd ~/build/uffs
-  cmake <path_to_uffs>
-  make
-
-5) run simulator (interactive mode):
-  src/utils/mkuffs
- 
- 
-BUILD SIMULATOR ON WINDOWS
---------------------------
-
-1) create a 'build' dir along with uffs source dir,
- d:\build\uffs
-
-2) Create VC project files:
-  cd build\uffs
-  cmake <path_to_uffs>
-
-3) Open uffs.dsw (or uffs.sln for VC > 6 ), compile & run.
-
- 
-LATEST SOURCE CODE
-------------------
-You can get the latest source code from git repository:
-  git clone git://uffs.git.sourceforge.net/gitroot/uffs/uffs
-
-
-CURRENT STATUS
---------------
-UFFS 0.1.x is a working version on PC simulator, also has been ported to 
-uBase embedded OS as a 'real world' product for thousands of copies,
-it works fine so far.
-
-UFFS 0.2.0 implementes full directory.
-
-UFFS 1.0.0 is the first stable release at sf.net.
-
-UFFS 1.1.0: support NAND flash with large page size (up to 2K).
-
-UFFS 1.1.1: bug fixes. a tool for making uffs disk image.
-
-UFFS 1.1.2: bug fixes. add more Flash Class. change Licence from GNU GPLv2 to GNU LGPLv2
-
-UFFS 1.2.0: 
-  - eliminate 'current path' and relatives. Now you should use absolute path in all
-    uffs APIs. For dir, the fullname should end with '/'.
-  - allow using static memory allocation, 'malloc' is no longer needed.
-  - using cmake for building simulator.
-  - bug fixes & minor changes.
-
-UFFS 1.2.1:
-  - improve bad block management
-  - bug fixes
-  - change Licence to modified GNU GPLv2.
-
-UFFS 1.3.0:
-  - improved flash interface
-  - support hardware ECC
-  - support user defined spare layout (for customized NAND flash controller)
-  - support 4K page size
-  - no partial page program required, support MLC NAND flash
-  - reduced buffer flushes by grouping buffers
-  - structual improvments and bug fixes
-  
-UFFS v1.3.1:
-  - Tidy up three memory allocators: static, native and system.
-  - Fix bugs in flash interface example.
-  - Fix memory allocation bugs when using static memory allocator.
-  - Add flash driver interface 'WriteFullPage()'.
-  - Fix compilation errors for BlackFin DSP compiler.
-
-UFFS v1.3.2:
-  - Add POSIX like file system APIs.
-  - Bug fixes.
-  
-UFFS v1.3.3:
-  - Change Flash Interface, simplify interface.
-  - Improved bad block handling.
-  - Better support for MLC NAND flash.
-  - Added hardware ECC and RS-ECC controller emulator.
-  - Bug fixes.
-
-UFFS v1.3.4
-  - New UO_NOECC option for skipping ECC (fast reading).
-  - POSIX compliance uffs_seek().
-  - Improved unclean page detection (add new 'seal' byte in spare area).
-  - Optional page data CRC.
-  - Bug fixes.
-  - Other improvements.
-  
-LICENCE
--------
-  From v1.2.1, UFFS is released under a modified GNU GPLv2. (the same as eCos Licence)
-  The full licence text can be found in the header of source files:
-  
-	  UFFS is free software; you can redistribute it and/or modify it under
-	  the GNU Library General Public License as published by the Free Software 
-	  Foundation; either version 2 of the License, or (at your option) any
-	  later version.
-
-	  UFFS is distributed in the hope that it will be useful, but WITHOUT
-	  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-	  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-	  or GNU Library General Public License, as applicable, for more details.
-	 
-	  You should have received a copy of the GNU General Public License
-	  and GNU Library General Public License along with UFFS; if not, write
-	  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-	  Boston, MA  02110-1301, USA.
-
-	  As a special exception, if other files instantiate templates or use
-	  macros or inline functions from this file, or you compile this file
-	  and link it with other works to produce a work based on this file,
-	  this file does not by itself cause the resulting work to be covered
-	  by the GNU General Public License. However the source code for this
-	  file must still be made available in accordance with section (3) of
-	  the GNU General Public License v2.
-	 
-	  This exception does not invalidate any other reasons why a work based
-	  on this file might be covered by the GNU General Public License.
-
-
-TESTING UFFS WITH SQLITE3 REGRESSION TEST CASES
------------------------------------------------
-UFFS can be tested with sqlite3 regression test cases (on Linux).
-
-1) install tcl8.5-dev on host PC:
-	apt-get install tcl8.5 tcl8.5-dev
-
-    # make sure your Linux is using tcl8.5 as the default tclsh:
-		sudo update-alternatives --config tclsh
-		(select "tclsh8.5" from the list.)
-
-2) build uffs:
-	mkdir -p ~/build/uffs
-	cd ~/build/uffs
-	cmake <path_to_uffs>
-
-3) build sqlite3:
-	cd <path_to_uffs>/src/test/sqlite3/sqlite-src-3070900
-	./configure        					 # create some build support files
-	git checkout -f Makefile config.h    # restore modified Makefile and config.h
-	make test                            # start build 'testfixture' program.
-	
-	# now you'll see something like:
-	Connect: Connection refused
-	Assert (uffs_ret == ret && ret == bak_ret) fail at /home/.../src/test/api_test/os_uffs.c:os_unlink:329: unlink("/home/.../src/test/sqlite3/sqlite-src-3070900/./test.db-journal"), unix return 0, uffs return -1, bak return -1
-	make: *** [test] Error 1
-
-4) run test cases:
-	Open two terminals.
-	on termional A:
-		cd ~/build/uffs
-		src/utils/mkuffs -t 1024
-
-		#on uffs simulator command line, enter:
-		format /
-		apisrv
-
-	on terminal B:
-		cd <path_to_uffs>/src/test/sqlite3/sqlite-src-3070900
-		./test-uffs.sh
-
-	Note: if you want to run mkuffs on another PC, for example, a Windows PC, you need to specify the IP address in test-uffs.sh.
-	
-	The test will take 1~4 hours, depends on how fast your Linux box is.
-
-
-ACKNOWLEDGMENT
----------------
-Special thanks for your contributions to:
-(list in no particular order)
-
-* Chen Jun <chj@nlscan.com>
-* Michail <digiolog@mail.ru>
-* Sjpu <sjpu@163.com>
-* RobertGray <xennex@hotmail.com>
-* Dongbo <dongbo@ftsafe.com>
-* Cag <seucag@hotmail.com>
-* Sergey <s_sazonov@m2m-t.ru>
-* Chris Conrad <chris.conrad@halliburton.com>
-* Vladimir <decoder@rambler.ru>
-* Thien Pham <thienpham2008@yahoo.com>
-* Emmanuel Blot <eblot.ml@gmail.com>
-* Michael <yowong2@gmail.com>
-* Mick D <mick-eng@sourceforge.net>
-* Paul <paulr227@gmail.com>
-* Rogerz <rogerz.zhang@gmail.com>
-
-
diff --git a/components/dfs/filesystems/uffs/SConscript b/components/dfs/filesystems/uffs/SConscript
deleted file mode 100644
index 53f7713fc2..0000000000
--- a/components/dfs/filesystems/uffs/SConscript
+++ /dev/null
@@ -1,38 +0,0 @@
-# RT-Thread building script for component
-
-from building import *
-
-cwd = GetCurrentDir()
-
-src = Glob('*.c')
-
-uffs = Split('''
-src/uffs/uffs_badblock.c
-src/uffs/uffs_blockinfo.c
-src/uffs/uffs_buf.c
-src/uffs/uffs_debug.c
-src/uffs/uffs_device.c
-src/uffs/uffs_ecc.c
-src/uffs/uffs_crc.c
-src/uffs/uffs_fd.c
-src/uffs/uffs_find.c
-src/uffs/uffs_flash.c
-src/uffs/uffs_fs.c
-src/uffs/uffs_init.c
-src/uffs/uffs_mem.c
-src/uffs/uffs_mtb.c
-src/uffs/uffs_pool.c
-src/uffs/uffs_public.c
-src/uffs/uffs_tree.c
-src/uffs/uffs_utils.c
-src/uffs/uffs_version.c
-
-''')
-
-src = src + uffs
- 
-CPPPATH = [cwd, cwd + '/src/inc']
-
-group = DefineGroup('Filesystem', src , depend = ['RT_USING_DFS', 'RT_USING_DFS_UFFS'], CPPPATH = CPPPATH)
-
-Return('group')
diff --git a/components/dfs/filesystems/uffs/TODO b/components/dfs/filesystems/uffs/TODO
deleted file mode 100644
index bf6b4fb66a..0000000000
--- a/components/dfs/filesystems/uffs/TODO
+++ /dev/null
@@ -1,5 +0,0 @@
-TODO list for v1.3:
-
-* New API: int uffs_SkipObject(uffs_Object *obj, int size);
-* Introduce buffer group
-* Interface to Linux MTD
diff --git a/components/dfs/filesystems/uffs/dfs_uffs.c b/components/dfs/filesystems/uffs/dfs_uffs.c
deleted file mode 100644
index fb8caf9dd7..0000000000
--- a/components/dfs/filesystems/uffs/dfs_uffs.c
+++ /dev/null
@@ -1,660 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2011-10-22     prife        the first version
- * 2012-03-28     prife        use mtd device interface
- * 2012-04-05     prife        update uffs with official repo and use uffs_UnMount/Mount
- * 2017-04-12     lizhen9880   fix the f_bsize and f_blocks issue in function dfs_uffs_statfs
- */
-
-#include <rtthread.h>
-
-#include <dfs_fs.h>
-#include <dfs_file.h>
-#include <rtdevice.h>
-
-#include "dfs_uffs.h"
-
-#include "uffs/uffs_fd.h" /* posix file api is here */
-#include "uffs/uffs_mtb.h"
-#include "uffs/uffs_mem.h"
-#include "uffs/uffs_utils.h"
-
-/*
- * RT-Thread DFS Interface for uffs
- */
-#define UFFS_DEVICE_MAX         2    /* the max partions on a nand deivce*/
-#define UFFS_MOUNT_PATH_MAX     128  /* the mount point max length */
-#define FILE_PATH_MAX           256  /* the longest file path */
-
-struct _nand_dev
-{
-    struct rt_mtd_nand_device *dev;
-    struct uffs_StorageAttrSt storage;
-    uffs_Device uffs_dev;
-    uffs_MountTable mount_table;
-    char mount_path[UFFS_MOUNT_PATH_MAX];
-    void *data;   /* when uffs use static buf, it will save ptr here */
-};
-/* make sure the following struct var had been initilased to 0! */
-static struct _nand_dev nand_part[UFFS_DEVICE_MAX] = {0};
-
-static int uffs_result_to_dfs(int result)
-{
-    int status = -1;
-
-    result = result < 0 ? -result : result;
-    switch (result)
-    {
-    case UENOERR:/** no error */
-        break;
-    case UEACCES:/** Tried to open read-only file for writing, or files sharing mode
-                   does not allow specified operations, or given path is directory */
-        status = -EINVAL;
-        break;/* no suitable */
-    case UEEXIST:   /** _O_CREAT and _O_EXCL flags specified, but filename already exists */
-        status = -EEXIST;
-        break;
-    case UEINVAL:  /** Invalid oflag or pmode argument */
-        status = -EINVAL;
-        break;
-    case UEMFILE: /** No more file handles available(too many open files)  */
-        status = -1;
-        break;
-    case UENOENT: /** file or path not found */
-        status = -ENOENT;
-        break;
-    case UETIME: /** can't set file time */
-        status = -1;
-        break;
-    case UEBADF: /** invalid file handle */
-        status = -EBADF;
-        break;
-    case UENOMEM:/** no enough memory */
-        status = -ENOSPC;
-        break;
-    case UEIOERR: /** I/O error from lower level flash operation */
-        status = -EIO;
-        break;
-    case UENOTDIR: /** Not a directory */
-        status = -ENOTDIR;
-        break;
-    case UEISDIR: /** Is a directory */
-        status = -EISDIR;
-        break;
-    case UEUNKNOWN_ERR:
-    default:
-        status = -1;
-        break; /* unknown error! */
-    }
-
-    return status;
-}
-
-static URET _device_init(uffs_Device *dev)
-{
-    dev->attr->_private = NULL; // hook nand_chip data structure to attr->_private
-    dev->ops = (struct uffs_FlashOpsSt *)&nand_ops;
-
-    return U_SUCC;
-}
-
-static URET _device_release(uffs_Device *dev)
-{
-    return U_SUCC;
-}
-
-static int init_uffs_fs(
-    struct _nand_dev *nand_part)
-{
-    uffs_MountTable *mtb;
-    struct rt_mtd_nand_device *nand;
-    struct uffs_StorageAttrSt *flash_storage;
-
-    mtb = &nand_part->mount_table;
-    nand = nand_part->dev;
-    flash_storage = &nand_part->storage;
-
-    /* setup nand storage attributes */
-    uffs_setup_storage(flash_storage, nand);
-
-    /* register mount table */
-    if (mtb->dev)
-    {
-        /* set memory allocator for uffs */
-#if CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR > 0
-        uffs_MemSetupSystemAllocator(&mtb->dev->mem);
-#endif
-        /* setup device init/release entry */
-        mtb->dev->Init = _device_init;
-        mtb->dev->Release = _device_release;
-        mtb->dev->attr = flash_storage;
-
-        uffs_RegisterMountTable(mtb);
-    }
-    /* mount uffs partion on nand device */
-    return uffs_Mount(nand_part->mount_path) == U_SUCC ? 0 : -1;
-}
-
-static int dfs_uffs_mount(
-    struct dfs_filesystem *fs,
-    unsigned long rwflag,
-    const void *data)
-{
-    rt_base_t index;
-    uffs_MountTable *mount_part;
-    struct rt_mtd_nand_device *dev;
-
-    RT_ASSERT(rt_strlen(fs->path) < (UFFS_MOUNT_PATH_MAX - 1));
-    dev = RT_MTD_NAND_DEVICE(fs->dev_id);
-
-    /*1. find a empty entry in partition table */
-    for (index = 0; index < UFFS_DEVICE_MAX ; index ++)
-    {
-        if (nand_part[index].dev == RT_NULL)
-            break;
-    }
-    if (index == UFFS_DEVICE_MAX)
-        return -ENOENT;
-
-    /*2. fill partition structure */
-    nand_part[index].dev = dev;
-
-    /* make a right mount path for uffs, end with '/' */
-    rt_snprintf(nand_part[index].mount_path, UFFS_MOUNT_PATH_MAX, "%s/", fs->path);
-    if (nand_part[index].mount_path[1] == '/')
-        nand_part[index].mount_path[1] = 0;
-
-    mount_part = &(nand_part[index].mount_table);
-    mount_part->mount   = nand_part[index].mount_path;
-    mount_part->dev = &(nand_part[index].uffs_dev);
-    rt_memset(mount_part->dev, 0, sizeof(uffs_Device));//in order to make uffs happy.
-    mount_part->dev->_private = dev;   /* save dev_id into uffs */
-    mount_part->start_block = dev->block_start;
-    mount_part->end_block = dev->block_end;
-    /*3. mount uffs */
-    if (init_uffs_fs(&nand_part[index]) < 0)
-    {
-        return uffs_result_to_dfs(uffs_get_error());
-    }
-    return 0;
-}
-
-static int dfs_uffs_unmount(struct dfs_filesystem *fs)
-{
-    rt_base_t index;
-    int result;
-
-    /* find the device index and then unmount it */
-    for (index = 0; index < UFFS_DEVICE_MAX; index++)
-    {
-        if (nand_part[index].dev == RT_MTD_NAND_DEVICE(fs->dev_id))
-        {
-            nand_part[index].dev = RT_NULL;
-            result = uffs_UnMount(nand_part[index].mount_path);
-            if (result != U_SUCC)
-                break;
-
-            result = uffs_UnRegisterMountTable(& nand_part[index].mount_table);
-            return (result == U_SUCC) ? RT_EOK : -1;
-        }
-    }
-    return -ENOENT;
-}
-
-static int dfs_uffs_mkfs(rt_device_t dev_id)
-{
-    rt_base_t index;
-    rt_uint32_t block;
-    struct rt_mtd_nand_device *mtd;
-
-    /*1. find the device index */
-    for (index = 0; index < UFFS_DEVICE_MAX; index++)
-    {
-        if (nand_part[index].dev == (struct rt_mtd_nand_device *)dev_id)
-            break;
-    }
-
-    if (index == UFFS_DEVICE_MAX)
-    {
-        /* can't find device driver */
-        return -ENOENT;
-    }
-
-    /*2. then unmount the partition */
-    uffs_UnMount(nand_part[index].mount_path);
-    mtd = nand_part[index].dev;
-
-    /*3. erase all blocks on the partition */
-    block = mtd->block_start;
-    for (; block <= mtd->block_end; block++)
-    {
-        rt_mtd_nand_erase_block(mtd, block);
-#if defined(RT_UFFS_USE_CHECK_MARK_FUNCITON)
-        if (rt_mtd_nand_check_block(mtd, block) != RT_EOK)
-        {
-            rt_kprintf("found bad block %d\n", block);
-            rt_mtd_nand_mark_badblock(mtd, block);
-        }
-#endif
-    }
-
-    /*4. remount it */
-    if (init_uffs_fs(&nand_part[index]) < 0)
-    {
-        return uffs_result_to_dfs(uffs_get_error());
-    }
-    return RT_EOK;
-}
-
-static int dfs_uffs_statfs(struct dfs_filesystem *fs,
-                           struct statfs *buf)
-{
-    rt_base_t index;
-    struct rt_mtd_nand_device *mtd = RT_MTD_NAND_DEVICE(fs->dev_id);
-
-    RT_ASSERT(mtd != RT_NULL);
-
-    /* find the device index */
-    for (index = 0; index < UFFS_DEVICE_MAX; index++)
-    {
-        if (nand_part[index].dev == (void *)mtd)
-            break;
-    }
-    if (index == UFFS_DEVICE_MAX)
-        return -ENOENT;
-
-    buf->f_bsize = mtd->page_size * mtd->pages_per_block;
-    buf->f_blocks = (mtd->block_end - mtd->block_start + 1);
-    buf->f_bfree = uffs_GetDeviceFree(&nand_part[index].uffs_dev) / buf->f_bsize ;
-
-    return 0;
-}
-
-static int dfs_uffs_open(struct dfs_fd *file)
-{
-    int fd;
-    int oflag, mode;
-    char *file_path;
-
-    oflag = file->flags;
-    if (oflag & O_DIRECTORY)   /* operations about dir */
-    {
-        uffs_DIR *dir;
-
-        if (oflag & O_CREAT)   /* create a dir*/
-        {
-            if (uffs_mkdir(file->path) < 0)
-                return uffs_result_to_dfs(uffs_get_error());
-        }
-        /* open dir */
-        file_path = rt_malloc(FILE_PATH_MAX);
-        if (file_path == RT_NULL)
-            return -ENOMEM;
-
-        if (file->path[0] == '/' && !(file->path[1] == 0))
-            rt_snprintf(file_path, FILE_PATH_MAX, "%s/", file->path);
-        else
-        {
-            file_path[0] = '/';
-            file_path[1] = 0;
-        }
-
-        dir = uffs_opendir(file_path);
-
-        if (dir == RT_NULL)
-        {
-            rt_free(file_path);
-            return uffs_result_to_dfs(uffs_get_error());
-        }
-        /* save this pointer,will used by  dfs_uffs_getdents*/
-        file->data = dir;
-        rt_free(file_path);
-        return RT_EOK;
-    }
-    /* regular file operations */
-    /* int uffs_open(const char *name, int oflag, ...); what is this?
-     * uffs_open can open dir!!  **/
-    mode = 0;
-    if (oflag & O_RDONLY) mode |= UO_RDONLY;
-    if (oflag & O_WRONLY) mode |= UO_WRONLY;
-    if (oflag & O_RDWR)   mode |= UO_RDWR;
-    /* Opens the file, if it is existing. If not, a new file is created. */
-    if (oflag & O_CREAT) mode |= UO_CREATE;
-    /* Creates a new file. If the file is existing, it is truncated and overwritten. */
-    if (oflag & O_TRUNC) mode |= UO_TRUNC;
-    /* Creates a new file. The function fails if the file is already existing. */
-    if (oflag & O_EXCL) mode |= UO_EXCL;
-
-    fd = uffs_open(file->path, mode);
-    if (fd < 0)
-    {
-        return uffs_result_to_dfs(uffs_get_error());
-    }
-
-    /* save this pointer, it will be used when calling read(), write(),
-     * flush(), seek(), and will be free when calling close()*/
-
-    file->data = (void *)fd;
-    file->pos  = uffs_seek(fd, 0, USEEK_CUR);
-    file->size = uffs_seek(fd, 0, USEEK_END);
-    uffs_seek(fd, file->pos, USEEK_SET);
-
-    if (oflag & O_APPEND)
-    {
-        file->pos = uffs_seek(fd, 0, USEEK_END);
-    }
-    return 0;
-}
-
-static int dfs_uffs_close(struct dfs_fd *file)
-{
-    int oflag;
-    int fd;
-
-    oflag = file->flags;
-    if (oflag & O_DIRECTORY)
-    {
-        /* operations about dir */
-        if (uffs_closedir((uffs_DIR *)(file->data)) < 0)
-            return uffs_result_to_dfs(uffs_get_error());
-
-        return 0;
-    }
-    /* regular file operations */
-    fd = (int)(file->data);
-
-    if (uffs_close(fd) == 0)
-        return 0;
-
-    return uffs_result_to_dfs(uffs_get_error());
-}
-
-static int dfs_uffs_ioctl(struct dfs_fd *file, int cmd, void *args)
-{
-    return -ENOSYS;
-}
-
-static int dfs_uffs_read(struct dfs_fd *file, void *buf, size_t len)
-{
-    int fd;
-    int char_read;
-
-    fd = (int)(file->data);
-    char_read = uffs_read(fd, buf, len);
-    if (char_read < 0)
-        return uffs_result_to_dfs(uffs_get_error());
-
-    /* update position */
-    file->pos = uffs_seek(fd, 0, USEEK_CUR);
-    return char_read;
-}
-
-static int dfs_uffs_write(struct dfs_fd *file,
-                          const void *buf,
-                          size_t len)
-{
-    int fd;
-    int char_write;
-
-    fd = (int)(file->data);
-
-    char_write = uffs_write(fd, buf, len);
-    if (char_write < 0)
-        return uffs_result_to_dfs(uffs_get_error());
-
-    /* update position */
-    file->pos = uffs_seek(fd, 0, USEEK_CUR);
-    return char_write;
-}
-
-static int dfs_uffs_flush(struct dfs_fd *file)
-{
-    int fd;
-    int result;
-
-    fd = (int)(file->data);
-
-    result = uffs_flush(fd);
-    if (result < 0)
-        return uffs_result_to_dfs(uffs_get_error());
-    return 0;
-}
-
-int uffs_seekdir(uffs_DIR *dir, long offset)
-{
-    int i = 0;
-
-    while (i < offset)
-    {
-        if (uffs_readdir(dir) == RT_NULL)
-            return -1;
-        i++;
-    }
-    return 0;
-}
-
-
-static int dfs_uffs_seek(struct dfs_fd *file,
-                         rt_off_t offset)
-{
-    int result;
-
-    /* set offset as current offset */
-    if (file->type == FT_DIRECTORY)
-    {
-        uffs_rewinddir((uffs_DIR *)(file->data));
-        result = uffs_seekdir((uffs_DIR *)(file->data), offset / sizeof(struct dirent));
-        if (result >= 0)
-        {
-            file->pos = offset;
-            return offset;
-        }
-    }
-    else if (file->type == FT_REGULAR)
-    {
-        result = uffs_seek((int)(file->data), offset, USEEK_SET);
-        if (result >= 0)
-            return offset;
-    }
-
-    return uffs_result_to_dfs(uffs_get_error());
-}
-
-/* return the size of struct dirent*/
-static int dfs_uffs_getdents(
-    struct dfs_fd *file,
-    struct dirent *dirp,
-    uint32_t count)
-{
-    rt_uint32_t index;
-    char *file_path;
-    struct dirent *d;
-    uffs_DIR *dir;
-    struct uffs_dirent *uffs_d;
-
-    dir = (uffs_DIR *)(file->data);
-    RT_ASSERT(dir != RT_NULL);
-
-    /* round count, count is always 1 */
-    count = (count / sizeof(struct dirent)) * sizeof(struct dirent);
-    if (count == 0) return -EINVAL;
-
-    /* allocate file name */
-    file_path = rt_malloc(FILE_PATH_MAX);
-    if (file_path == RT_NULL)
-        return -ENOMEM;
-
-    index = 0;
-    /* usually, the while loop should only be looped only once! */
-    while (1)
-    {
-        struct uffs_stat s;
-
-        d = dirp + index;
-
-        uffs_d = uffs_readdir(dir);
-        if (uffs_d == RT_NULL)
-        {
-            rt_free(file_path);
-            return (uffs_result_to_dfs(uffs_get_error()));
-        }
-
-        if (file->path[0] == '/' && !(file->path[1] == 0))
-            rt_snprintf(file_path, FILE_PATH_MAX, "%s/%s", file->path, uffs_d->d_name);
-        else
-            rt_strncpy(file_path, uffs_d->d_name, FILE_PATH_MAX);
-
-        uffs_stat(file_path, &s);
-        switch (s.st_mode & US_IFMT)  /* file type mark */
-        {
-        case US_IFREG: /* directory */
-            d->d_type = DT_REG;
-            break;
-        case US_IFDIR: /* regular file */
-            d->d_type = DT_DIR;
-            break;
-        case US_IFLNK: /* symbolic link */
-        case US_IREAD: /* read permission */
-        case US_IWRITE:/* write permission */
-        default:
-            d->d_type = DT_UNKNOWN;
-            break;
-        }
-
-        /* write the rest args of struct dirent* dirp  */
-        d->d_namlen = rt_strlen(uffs_d->d_name);
-        d->d_reclen = (rt_uint16_t)sizeof(struct dirent);
-        rt_strncpy(d->d_name, uffs_d->d_name, rt_strlen(uffs_d->d_name) + 1);
-
-        index ++;
-        if (index * sizeof(struct dirent) >= count)
-            break;
-    }
-
-    /* free file name buf */
-    rt_free(file_path);
-
-    if (index == 0)
-        return uffs_result_to_dfs(uffs_get_error());
-
-    file->pos += index * sizeof(struct dirent);
-
-    return index * sizeof(struct dirent);
-}
-
-static int dfs_uffs_unlink(struct dfs_filesystem *fs, const char *path)
-{
-    int result;
-    struct uffs_stat s;
-
-    /* judge file type, dir is to be delete by uffs_rmdir, others by uffs_remove */
-    if (uffs_lstat(path, &s) < 0)
-    {
-        return uffs_result_to_dfs(uffs_get_error());
-    }
-
-    switch (s.st_mode & US_IFMT)
-    {
-    case US_IFREG:
-        result = uffs_remove(path);
-        break;
-    case US_IFDIR:
-        result = uffs_rmdir(path);
-        break;
-    default:
-        /* unknown file type */
-        return -1;
-    }
-    if (result < 0)
-        return uffs_result_to_dfs(uffs_get_error());
-
-    return 0;
-}
-
-static int dfs_uffs_rename(
-    struct dfs_filesystem *fs,
-    const char *oldpath,
-    const char *newpath)
-{
-    int result;
-
-    result = uffs_rename(oldpath, newpath);
-    if (result < 0)
-        return uffs_result_to_dfs(uffs_get_error());
-
-    return 0;
-}
-
-static int dfs_uffs_stat(struct dfs_filesystem *fs, const char *path, struct stat *st)
-{
-    int result;
-    struct uffs_stat s;
-
-    result = uffs_stat(path, &s);
-    if (result < 0)
-        return uffs_result_to_dfs(uffs_get_error());
-
-    /* convert uffs stat to dfs stat structure */
-    /* FIXME, these field may not be the same */
-    st->st_dev  = 0;
-    st->st_mode = s.st_mode;
-    st->st_size = s.st_size;
-    st->st_mtime = s.st_mtime;
-
-    return 0;
-}
-
-static const struct dfs_file_ops dfs_uffs_fops =
-{
-    dfs_uffs_open,
-    dfs_uffs_close,
-    dfs_uffs_ioctl,
-    dfs_uffs_read,
-    dfs_uffs_write,
-    dfs_uffs_flush,
-    dfs_uffs_seek,
-    dfs_uffs_getdents,
-};
-
-static const struct dfs_filesystem_ops dfs_uffs_ops =
-{
-    "uffs", /* file system type: uffs */
-#if RTTHREAD_VERSION >= 10100
-    DFS_FS_FLAG_FULLPATH,
-#else
-#error "uffs can only work with rtthread whose version should >= 1.01\n"
-#endif
-    &dfs_uffs_fops,
-
-    dfs_uffs_mount,
-    dfs_uffs_unmount,
-    dfs_uffs_mkfs,
-    dfs_uffs_statfs,
-
-    dfs_uffs_unlink,
-    dfs_uffs_stat,
-    dfs_uffs_rename,
-};
-
-int dfs_uffs_init(void)
-{
-    /* register uffs file system */
-    dfs_register(&dfs_uffs_ops);
-
-    if (uffs_InitObjectBuf() == U_SUCC)
-    {
-        if (uffs_DirEntryBufInit() == U_SUCC)
-        {
-            uffs_InitGlobalFsLock();
-            return RT_EOK;
-        }
-    }
-    return -RT_ERROR;
-}
-INIT_COMPONENT_EXPORT(dfs_uffs_init);
-
diff --git a/components/dfs/filesystems/uffs/dfs_uffs.h b/components/dfs/filesystems/uffs/dfs_uffs.h
deleted file mode 100644
index 72f0ee9240..0000000000
--- a/components/dfs/filesystems/uffs/dfs_uffs.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2012-03-30     prife        the first version
- */
-
-#ifndef DFS_UFFS_H_
-#define DFS_UFFS_H_
-
-#include "uffs_config.h"
-#include "uffs/uffs_public.h"
-
-/* the UFFS ECC mode opitons  */
-#ifndef RT_UFFS_ECC_MODE
-#define RT_UFFS_ECC_MODE      1
-#endif
-
-/*
- * RT_UFFS_ECC_MODE:
- * 0, Do not use ECC
- * 1, UFFS calculate the ECC
- * 2, Flash driver(or by hardware) calculate the ECC
- * 3, Hardware calculate the ECC and automatically write to spare.
- */
-#if RT_UFFS_ECC_MODE == 0
-#define RT_CONFIG_UFFS_ECC_MODE UFFS_ECC_NONE
-#elif RT_UFFS_ECC_MODE == 1
-#define RT_CONFIG_UFFS_ECC_MODE UFFS_ECC_SOFT
-#elif RT_UFFS_ECC_MODE == 2
-#define RT_CONFIG_UFFS_ECC_MODE UFFS_ECC_HW
-#elif RT_UFFS_ECC_MODE == 3
-#define RT_CONFIG_UFFS_ECC_MODE UFFS_ECC_HW_AUTO
-#endif
-
-/* #define RT_CONFIG_UFFS_ECC_MODE  UFFS_ECC_HW_AUTO */
-/* #define RT_CONFIG_UFFS_ECC_MODE  UFFS_ECC_SOFT */
-/* #define RT_CONFIG_UFFS_ECC_MODE  UFFS_ECC_NONE */
-
-/* enable this ,you need provide a mark_badblock/check_block funciton */
-/* #define RT_UFFS_USE_CHECK_MARK_FUNCITON */
-
-#if RT_CONFIG_UFFS_ECC_MODE == UFFS_ECC_SOFT      /* let uffs do soft ecc */
-#define RT_CONFIG_UFFS_LAYOUT    UFFS_LAYOUT_UFFS /* UFFS_LAYOUT_FLASH */
-
-#elif RT_CONFIG_UFFS_ECC_MODE == UFFS_ECC_HW_AUTO /* nand driver make ecc and do ecc correct */
-#define RT_CONFIG_UFFS_LAYOUT    UFFS_LAYOUT_FLASH
-
-#elif RT_CONFIG_UFFS_ECC_MODE == UFFS_ECC_NONE
-#define RT_CONFIG_UFFS_LAYOUT    UFFS_LAYOUT_UFFS /* UFFS_LAYOUT_FLASH */
-
-#else
-#error "uffs under rt-thread do not support this ECC mode"
-#endif /* RT_CONFIG_UFFS_ECC_MODE */
-
-#if (!CONFIG_USE_STATIC_MEMORY_ALLOCATOR)  && (CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR)
-#define RT_UFFS_MEMORY_ALLOCATOR  1  /* use system memory allocator */
-#elif (CONFIG_USE_STATIC_MEMORY_ALLOCATOR) && (!CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR)
-#define RT_UFFS_MEMORY_ALLOCATOR  0  /* use static memory allocator */
-#else
-#error "UFFS: CONFIG_USE_STATIC_MEMORY_ALLOCATOR ,CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR are invalid!"
-#endif
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR > 0
-#error "dfs_uffs only support CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR"
-#endif
-
-#if defined(CONFIG_UFFS_AUTO_LAYOUT_USE_MTD_SCHEME)
-#error "dfs_uffs not support CONFIG_UFFS_AUTO_LAYOUT_USE_MTD_SCHEME"
-#endif
-
-#if (RT_CONFIG_UFFS_ECC_MODE == UFFS_ECC_HW_AUTO) && (RT_CONFIG_UFFS_LAYOUT != UFFS_LAYOUT_FLASH)
-#error "when use UFFS_ECC_HW_AUTO, you must use UFFS_LAYOUT_FLASH"
-
-#elif (RT_CONFIG_UFFS_ECC_MODE == UFFS_ECC_SOFT) && (RT_CONFIG_UFFS_LAYOUT != UFFS_LAYOUT_UFFS)
-#warning "when use UFFS_ECC_SOFT, it is recommended to use UFFS_LAYOUT_UFFS"
-#endif
-
-extern const uffs_FlashOps nand_ops;
-
-extern void uffs_setup_storage(
-    struct uffs_StorageAttrSt *attr,
-    struct rt_mtd_nand_device *nand);
-
-extern int dfs_uffs_init(void);
-#endif /* DFS_UFFS_H_ */
diff --git a/components/dfs/filesystems/uffs/doc/Understanding-UFFS.odp b/components/dfs/filesystems/uffs/doc/Understanding-UFFS.odp
deleted file mode 100644
index b39f4d0f32..0000000000
Binary files a/components/dfs/filesystems/uffs/doc/Understanding-UFFS.odp and /dev/null differ
diff --git a/components/dfs/filesystems/uffs/doc/Understanding-UFFS.pdf b/components/dfs/filesystems/uffs/doc/Understanding-UFFS.pdf
deleted file mode 100644
index 02926c8e18..0000000000
Binary files a/components/dfs/filesystems/uffs/doc/Understanding-UFFS.pdf and /dev/null differ
diff --git a/components/dfs/filesystems/uffs/doc/uffs-serial-num-relationship.JPG b/components/dfs/filesystems/uffs/doc/uffs-serial-num-relationship.JPG
deleted file mode 100644
index 2cdbbcd2b2..0000000000
Binary files a/components/dfs/filesystems/uffs/doc/uffs-serial-num-relationship.JPG and /dev/null differ
diff --git a/components/dfs/filesystems/uffs/src/CMakeLists.txt b/components/dfs/filesystems/uffs/src/CMakeLists.txt
deleted file mode 100644
index 7d744d16ee..0000000000
--- a/components/dfs/filesystems/uffs/src/CMakeLists.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-ADD_SUBDIRECTORY(emu)
-ADD_SUBDIRECTORY(uffs)
-ADD_SUBDIRECTORY(utils)
-ADD_SUBDIRECTORY(example)
-ADD_SUBDIRECTORY(platform)
-ADD_SUBDIRECTORY(test/api_test)
-ADD_SUBDIRECTORY(test/clients)
diff --git a/components/dfs/filesystems/uffs/src/emu/CMakeLists.txt b/components/dfs/filesystems/uffs/src/emu/CMakeLists.txt
deleted file mode 100644
index f70deff7a2..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/CMakeLists.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-SET (libemu_SRCS 
-		cmdline.c
-		cmdline.h
-		helper_cmds.c
-		uffs_fileem.c
-		uffs_fileem_share.c
-		uffs_fileem_wrap.c
-		uffs_fileem_ecc_soft.c
-		uffs_fileem_ecc_hw.c
-		uffs_fileem_ecc_hw_auto.c
-		uffs_fileem.h
-		test_cmds.c
-	)
-
-IF (UNIX)
-	INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/posix)
-ENDIF()
-IF (WIN32)
-	INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/win32)
-ENDIF()
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/inc)
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/test/api_test)
-ADD_LIBRARY(emu STATIC ${libemu_SRCS} )
-
diff --git a/components/dfs/filesystems/uffs/src/emu/cmdline.c b/components/dfs/filesystems/uffs/src/emu/cmdline.c
deleted file mode 100644
index 9774a11ca1..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/cmdline.c
+++ /dev/null
@@ -1,643 +0,0 @@
-/*
-This file is part of UFFS, the Ultra-low-cost Flash File System.
-
-Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-UFFS is free software; you can redistribute it and/or modify it under
-the GNU Library General Public License as published by the Free Software 
-Foundation; either version 2 of the License, or (at your option) any
-later version.
-
-UFFS is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-or GNU Library General Public License, as applicable, for more details.
-
-You should have received a copy of the GNU General Public License
-and GNU Library General Public License along with UFFS; if not, write
-to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA  02110-1301, USA.
-
-As a special exception, if other files instantiate templates or use
-macros or inline functions from this file, or you compile this file
-and link it with other works to produce a work based on this file,
-this file does not by itself cause the resulting work to be covered
-by the GNU General Public License. However the source code for this
-file must still be made available in accordance with section (3) of
-the GNU General Public License v2.
-
-This exception does not invalidate any other reasons why a work based
-on this file might be covered by the GNU General Public License.
-*/
-
-/**
-* \file cmdline.c
-* \brief command line test interface
-* \author Ricky Zheng, created in 22th Feb, 2007
-*/
-
-#include <string.h>
-#include <stdio.h>
-//#include <conio.h>
-#include "uffs_config.h"
-#include "cmdline.h"
-#include "uffs/uffs_fs.h"
-
-#define PROMPT "UFFS>"
-
-#define PFX "cli : "
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-#define MAX_CLI_ARGS_BUF_LEN	120
-#define MAX_CLI_ARGS_NUM		20
-#define MAX_CLI_ENV_NUM			11		// '?', '0' - '9'
-
-
-struct cli_arg {
-	int argc;
-	char *argv[MAX_CLI_ARGS_NUM];
-	char _buf[MAX_CLI_ARGS_BUF_LEN];
-};
-
-static BOOL m_exit = FALSE;
-static BOOL m_abort = FALSE;
-static struct cli_commandset *m_cmdset_head = NULL;
-
-// Note: last command return code stored in env 0.
-static int m_cli_envs[MAX_CLI_ENV_NUM] = {0};	// cli environment variables
-
-static const struct cli_command * cli_find(const char *cmd);
-static int cmd_help(int argc, char *argv[]);
-
-
-#define FOR_EACH_CLI_CMD(set, cmd) \
-	for (set = m_cmdset_head; set && set->cmds; set = set->next) \
-		for (cmd = set->cmds; cmd && cmd->handler; cmd++)
-
-
-/*** filter out leading and tailing spaces, discard comments
- * return pointer to start of new command line
- */
-static char * cli_process_line(char *p)
-{
-	char *s;
-	char *x;
-
-	if (!p)
-		return NULL;
-
-	// skip leading spaces
-	while (p && (*p == ' ' || *p == '\t'))
-		p++;
-
-	for (s = x = p; *p; x++, p++) {
-		switch(*p) {
-		case '\\':
-			p++;
-			if (*p) {
-				switch(*p) {
-				case 'n':
-					*x = '\n';
-					break;
-				case 'r':
-					*x = '\r';
-					break;
-				case 't':
-					*x = '\t';
-					break;
-				case 'b':
-					*x = '\b';
-					break;
-				default:
-					if (*p >= '0' && *p <= '9')
-						*x = *p - '0';
-					else
-						*x = *p;
-					break;
-				}
-			}
-			break;
-		default:
-			if (*p == '\r' || *p == '\n' || *p == '#') *p = '\0';
-			*x = *p;
-			break;
-		}
-
-		if (*p == 0)
-			break;
-	}
-
-	// trim tailing spaces
-	p--;
-	while (p > s && (*p == ' ' || *p == '\t'))
-		*p-- = '\0';
-
-	return s;
-}
-
-static int cli_env_to_idx(char env)
-{
-	int idx = -1;
-
-	if (env >= '0' && env <= '9') {
-		idx = env - '0' + 1;
-	}
-	else if (env == '?') {
-		idx = 0;
-	}
-
-	return idx;
-}
-
-int cli_env_set(char env, int val)
-{
-	int idx = cli_env_to_idx(env);
-
-	if (idx >= 0) {
-		m_cli_envs[idx] = val;
-		return 0;
-	}
-	else
-		return -1;
-}
-
-int cli_env_get(char env)
-{
-	int idx = cli_env_to_idx(env);
-
-	return idx >= 0 ? m_cli_envs[idx] : 0;
-}
-
-/** exec command <n> times:
- *		exec <n> <cmd> [...]
- */
-static int cmd_exec(int argc, char *argv[])
-{
-	int n = 0;
-	const struct cli_command *cmd;
-
-	CHK_ARGC(3, 0);
-
-	if (sscanf(argv[1], "%d", &n) != 1)
-		return CLI_INVALID_ARG;
-	if (n <= 0)
-		return CLI_INVALID_ARG;
-
-	cmd = cli_find(argv[2]);
-	if (cmd == NULL) {
-		MSG("Unknown command '%s'\n", argv[2]);
-		return -1;
-	}
-	else {
-		argv += 2;
-		while (n-- >= 0) {
-			if (cmd->handler(argc - 2, argv) != 0)
-				return -1;
-		}
-	}
-
-	return 0;
-}
-
-/** 
- * test expression
- *	test <a> <op> <b>
- * for example:
- *	test 1 > 0    ==> return 0
- *	test 1 <= 0   ==> return -1
- */
-static int cmd_test(int argc, char *argv[])
-{
-	int a, b;
-	char *op;
-	BOOL tst = FALSE;
-
-	CHK_ARGC(4, 4);
-
-	if (sscanf(argv[1], "%d", &a) != 1 ||
-		sscanf(argv[3], "%d", &b) != 1)
-	{
-		return CLI_INVALID_ARG;
-	}
-
-	op = argv[2];
-	if (!strcmp(op, ">")) {
-		tst = (a > b);
-	}
-	else if (!strcmp(op, "<")) {
-		tst = (a < b);
-	}
-	else if (!strcmp(op, "==")) {
-		tst = (a == b);
-	}
-	else if (!strcmp(op, ">=")) {
-		tst = (a >= b);
-	}
-	else if (!strcmp(op, "<=")) {
-		tst = (a <= b);
-	}
-	else if (!strcmp(op, "!=")) {
-		tst = (a != b);
-	}
-	else {
-		return CLI_INVALID_ARG;
-	}
-	
-	return tst ? 0 : -1;
-}
-
-/** if last command failed (return != 0), run <cmd>
- *    ! <cmd>
- */
-static int cmd_failed(int argc, char *argv[])
-{
-	const struct cli_command *cmd;
-
-	CHK_ARGC(2, 0);
-
-	cmd = cli_find(argv[1]);
-	if (cmd == NULL) {
-		MSG("Unknown command '%s'\n", argv[1]);
-		return -1;
-	}
-	else {
-		argv++;
-		return (cli_env_get('?') == 0 ? 0 : cmd->handler(argc - 1, argv));
-	}
-}
-
-/** print messages
- *		echo [<arg> ...]
- */
-static int cmd_echo(int argc, char *argv[])
-{
-	int i;
-
-	for (i = 1; i < argc; i++) {
-		MSG("%s%s", i > 1 ? " " : "", argv[i]);
-	}
-	MSG("\n");
-
-	return 0;
-}
-
-/** set cli environment variable
- *		set <env> <value>
- */
-static int cmd_set(int argc, char *argv[])
-{
-	int val;
-	int ret = -1;
-
-	CHK_ARGC(3, 0);
-
-	if (sscanf(argv[2], "%d", &val) == 1) {
-		ret = cli_env_set(argv[1][0], val);
-	}
-
-	return ret;
-}
-
-/** evaluation the expresstion, result to $1
- *		evl <value> <op> <value>
- */
-static int cmd_evl(int argc, char *argv[])
-{
-	int val1, val2, result = 0;
-	int ret = -1;
-
-	CHK_ARGC(4, 4);
-
-	if (sscanf(argv[1], "%d", &val1) == 1 &&
-		sscanf(argv[3], "%d", &val2) == 1) {
-		ret = 0;
-		switch(argv[2][0]) {
-			case '+':
-				result = val1 + val2;
-				break;
-			case '-':
-				result = val1 - val2;
-				break;
-			case '*':
-				result = val1 * val2;
-				break;
-			case '/':
-				if (val2 == 0)
-					ret = -1;
-				else
-					result = val1 / val2;
-				break;
-			case '%':
-				if (val2 == 0)
-					ret = -1;
-				else
-					result = val1 % val2;
-				break;
-			default:
-				ret = CLI_INVALID_ARG;
-				break;
-		}
-	}
-
-	if (ret == 0)
-		ret = cli_env_set('1', result);
-
-	return ret;
-}
-
-static int cmd_exit(int argc, char *argv[])
-{
-	m_exit = TRUE;
-	return 0;
-}
-
-/** Abort current script
- *		abort [...]
- */
-static int cmd_abort(int argc, char *argv[])
-{
-	if (argc > 1) {
-		cmd_echo(argc, argv);
-	}
-
-	m_abort = TRUE;
-
-	return 0;
-}
-
-/** run local file system's script
- *		script <filename>
- */
-static int cmd_script(int argc, char *argv[])
-{
-	char line_buf[256];
-	char *p;
-	FILE *fp;
-	const char *name;
-	int ret = 0;
-	static int stack = 0;
-
-	CHK_ARGC(2, 0);
-
-	if (stack++ == 0)
-		m_abort = FALSE;
-
-	name = argv[1];
-	fp = fopen(name, "r");
-
-	if (fp) {
-		memset(line_buf, 0, sizeof(line_buf));
-		while (!m_abort && fgets(line_buf, sizeof(line_buf) - 1, fp)) {
-			p = line_buf + sizeof(line_buf) - 1;
-			while (*p == 0 && p > line_buf)
-				p--;
-			while ((*p == '\r' || *p == '\n') && p > line_buf) {
-				*p-- = 0;
-			}
-			p = cli_process_line(line_buf);
-			if (*p)
-				ret = cli_interpret(p);
-			memset(line_buf, 0, sizeof(line_buf));
-		}
-		fclose(fp);
-	}
-	else {
-		MSG("Can't open host script file '%s' for read\n", name);
-		ret = -1;
-	}
-
-	stack--;
-
-	return ret;
-}
-
-
-
-static const struct cli_command default_cmds[] = 
-{
-	{ cmd_help,		"help|?",	"[<command>]",		"show commands or help on one command" },
-	{ cmd_exit,		"exit",		NULL,				"exit command line" },
-	{ cmd_exec,		"*",		"<n> <cmd> [...]>",	"run <cmd> <n> times" },
-	{ cmd_failed,	"!",		"<cmd> [...]",		"run <cmd> if last command failed" },
-	{ cmd_echo,		"echo",		"[...]",			"print messages" },
-	{ cmd_set,		"set",		"<env> <val>",		"set env variable" },
-	{ cmd_evl,		"evl",		"<val> <op> <val>",	"evaluation expresstion" },
-	{ cmd_test,		"test",		"<a> <op> <b>",		"test expression: <a> <op> <b>" },
-	{ cmd_script,   "script",   "<file>",           "run host script <file>" },
-	{ cmd_abort,	"abort",	NULL,				"abort from the running script" },
-	{ NULL, NULL, NULL, NULL }
-};
-
-static struct cli_commandset default_cmdset = {
-	default_cmds,
-};
-
-static BOOL match_cmd(const char *src, int start, int end, const char *des)
-{
-	while (src[start] == ' ' && start < end) 
-		start++;
-
-	while (src[end] == ' ' && start < end) 
-		end--;
-
-	if ((int)strlen(des) == (end - start + 1)) {
-		if (memcmp(src + start, des, end - start + 1) == 0) {
-			return TRUE;
-		}
-	}
-
-	return FALSE;
-}
-
-static BOOL check_cmd(const char *cmds, const char *cmd)
-{
-	int start, end;
-
-	for (start = end = 0; cmds[end] != 0 && cmds[end] != '|'; end++);
-
-	while (end > start) {
-		if (match_cmd(cmds, start, end - 1, cmd) == TRUE) 
-			return TRUE;
-		if (cmds[end] == 0) 
-			break;
-		if (cmds[end] == '|') {
-			end++;
-			for (start = end; cmds[end] != 0 && cmds[end] != '|'; end++);
-		}
-	} 
-
-	return FALSE;
-}
-
-static const struct cli_command * cli_find(const char *cmd)
-{
-	struct cli_commandset *work;
-	const struct cli_command *s;
-
-	FOR_EACH_CLI_CMD(work, s) {
-		if (check_cmd(s->cmd, cmd) == TRUE)
-			return s;
-	}
-
-	return NULL;
-}
-
-static void show_cmd_usage(const struct cli_command *cmd)
-{
-	MSG("%s: %s\n", cmd->cmd, cmd->descr);
-	MSG("Usage: %s %s\n", cmd->cmd, cmd->args ? cmd->args : "");
-}
-
-static int cmd_help(int argc, char *argv[])
-{
-	const struct cli_command *cmd;
-	struct cli_commandset *cmdset;
-	int i, n;
-
-	if (argc < 2)  {
-		MSG("Available commands:\n");
-		n = 0;
-		FOR_EACH_CLI_CMD(cmdset, cmd) {
-			MSG("%s", cmd->cmd);
-			for (i = strlen(cmd->cmd); i%10; i++, MSG(" "));
-			if ((++n % 5) == 0) MSG("\n");
-		}
-		MSG("\n");
-	}
-	else {
-		cmd = cli_find(argv[1]);
-		if (cmd == NULL) {
-			MSG("No such command\n");
-			return -1;
-		}
-		else {
-			show_cmd_usage(cmd);
-		}
-	}
-
-	return 0;
-}
-
-static void cli_parse_args(const char *cmd, struct cli_arg *arg)
-{
-	char *p;
-	int val;
-
-	if (arg) {
-		arg->argc = 0;
-		if (cmd) {
-			p = arg->_buf;
-			while (*cmd && arg->argc < MAX_CLI_ARGS_NUM && (p - arg->_buf < MAX_CLI_ARGS_BUF_LEN)) {
-				while(*cmd && (*cmd == ' ' || *cmd == '\t'))
-					cmd++;
-
-				arg->argv[arg->argc] = p;
-				while (*cmd && (*cmd != ' ' && *cmd != '\t') && (p - arg->_buf < MAX_CLI_ARGS_BUF_LEN)) {
-					if (*cmd == '$') {
-						// command env replacement
-						cmd++;
-						val = cli_env_get(*cmd++);
-						if (p - arg->_buf < MAX_CLI_ARGS_BUF_LEN - 12) {  // 12 is long enough for 32bit 'int'
-							p += sprintf(p, "%d", val & 0xFFFFFFFF);
-						}
-					}
-					else
-						*p++ = *cmd++;
-				}
-				*p++ = '\0';
-
-				if (*(arg->argv[arg->argc]) == '\0')
-					break;
-				arg->argc++;
-			}
-		}
-	}
-}
-
-int cli_interpret(const char *line)
-{
-	struct cli_arg arg = {0};
-	const struct cli_command *cmd;
-	int ret = -1;
-
-	cli_parse_args(line, &arg);
-
-	if (arg.argc > 0) {
-		cmd = cli_find(arg.argv[0]);
-		if (cmd == NULL) {
-			MSG("Unknown command '%s'\n", arg.argv[0]);
-		}
-		else {
-			ret = cmd->handler(arg.argc, arg.argv);
-			if (ret == CLI_INVALID_ARG) {
-				MSG("\n");
-				show_cmd_usage(cmd);
-			}
-		}
-	}
-
-	cli_env_set('?', ret);	// $? = last command return code
-
-	return ret;
-}
-
-void cli_add_commandset(struct cli_commandset *set)
-{
-	if (set) {
-		set->next = m_cmdset_head;
-		m_cmdset_head = set;
-	}
-}
-
-void cli_main_entry()
-{
-	char line[80];
-	int linelen = 0;
-	char *p;
-
-	MSG("$ ");
-	cli_add_commandset(&default_cmdset);
-
-	while (!m_exit) {
-		char ch;
-		if (linelen >= sizeof(line))
-			continue;
-		ch = getc(stdin);
-		switch (ch) {
-		case 8:
-		case 127:
-			if (linelen > 0) {
-				--linelen;
-				MSG("\x08 \x08");
-			}
-			break;
-
-		case '\r':
-		case '\n':
-			//MSG("\r\n");
-			if (linelen > 0) {
-				line[linelen] = 0;
-				p = cli_process_line(line);
-				if (*p)
-					cli_interpret(p);
-				linelen = 0;
-			}
-			MSG("$ ");
-			break;
-
-		case 21:
-			while (linelen > 0) {
-				--linelen;
-				MSG("\x08 \x08");
-			}
-			break;
-
-		default:
-			if (ch >= ' ' && ch < 127 && linelen < sizeof(line) - 1) {
-				line[linelen++] = ch;
-				//MSG("%c", ch);
-			}
-		}
-	}
-}
diff --git a/components/dfs/filesystems/uffs/src/emu/cmdline.h b/components/dfs/filesystems/uffs/src/emu/cmdline.h
deleted file mode 100644
index 284d68eaea..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/cmdline.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-
-#ifndef _UFFS_CLI_H_
-#define _UFFS_CLI_H_
-
-#ifndef BOOL
-#define BOOL int
-#endif
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#define CLI_INVALID_ARG			-100
-
-typedef int command_t(int argc, char *argv[]);
-
-struct cli_command {
-    command_t *handler;
-    const char *cmd;
-    const char *args;
-    const char *descr;
-};
-
-struct cli_commandset {
-	const struct cli_command *cmds;
-	struct cli_commandset *next;
-};
-
-void cli_add_commandset(struct cli_commandset *set);
-int cli_interpret(const char *line);
-int cli_env_get(char env);
-int cli_env_set(char env, int val);
-void cli_main_entry();
-
-#define u_assert(x) \
-	((x) ? TRUE : \
-			(uffs_PerrorRaw(UFFS_MSG_NORMAL, \
-				"Assert failed at %s:%s:%d: '%s' is not true.\n", \
-				__FILE__, __FUNCTION__, __LINE__, #x), FALSE))
-
-
-#define CHK_ARGC(min, max) \
-	if (argc < min || (max > 0 && argc > max)) \
-		return CLI_INVALID_ARG
-
-#endif
-
-
diff --git a/components/dfs/filesystems/uffs/src/emu/helper_cmds.c b/components/dfs/filesystems/uffs/src/emu/helper_cmds.c
deleted file mode 100644
index 1526c441ca..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/helper_cmds.c
+++ /dev/null
@@ -1,694 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file helper_cmds.c
- * \brief helper commands for test uffs
- * \author Ricky Zheng
- */
-#include <stdio.h>
-#include <string.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_fs.h"
-#include "uffs/uffs_utils.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs_mtb.h"
-#include "uffs/uffs_find.h"
-#include "cmdline.h"
-#include "uffs/uffs_fd.h"
-#include "uffs/uffs_mtb.h"
-#include "uffs_fileem.h"
-
-#define PFX "cmd : "
-
-#define MAX_PATH_LENGTH 128
-
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-/** format [<mount>] */
-static int cmd_format(int argc, char *argv[])
-{
-	URET ret;
-	const char *mount = "/";
-	uffs_Device *dev;
-	UBOOL force = U_FALSE;
-
-	if (argc > 1) {
-		mount = argv[1];
-		if (argc > 2 && strcmp(argv[2], "-f") == 0)
-			force = U_TRUE;
-	}
-	MSGLN("Formating %s ... ", mount);
-
-	dev = uffs_GetDeviceFromMountPoint(mount);
-	if (dev == NULL) {
-		MSGLN("Can't get device from mount point.");
-		return -1;
-	}
-	else {
-		ret = uffs_FormatDevice(dev, force);
-		if (ret != U_SUCC) {
-			MSGLN("Format fail.");
-			return -1;
-		}
-		else {
-			MSGLN("Format succ.");
-		}
-		uffs_PutDevice(dev);
-	}
-
-	return 0;
-}
-
-/** mkf <file> */
-static int cmd_mkf(int argc, char *argv[])
-{
-	int fd;
-	const char *name;
-	int oflags = UO_RDWR | UO_CREATE;
-
-	CHK_ARGC(2, 2);
-
-	name = argv[1];
-	fd = uffs_open(name, oflags);
-	if (fd < 0) {
-		MSGLN("Create %s fail, err: %d", name, uffs_get_error());
-		return -1;
-	}
-	else {
-		MSGLN("Create %s succ.", name);
-		uffs_close(fd);
-	}
-	
-	return 0;
-}
-
-/** mkdir <dir> */
-static int cmd_mkdir(int argc, char *argv[])
-{
-	const char *name;
-
-	CHK_ARGC(2, 0);
-
-	name = argv[1];
-	
-	if (uffs_mkdir(name) < 0) {
-		MSGLN("Create %s fail, err: %d", name, uffs_get_error());
-		return -1;
-	}
-	else {
-		MSGLN("Create %s succ.", name);
-	}
-
-	return 0;
-}
-
-
-static int CountObjectUnder(const char *dir)
-{
-	int count = 0;
-	uffs_DIR *dirp;
-
-	dirp = uffs_opendir(dir);
-	if (dirp) {
-		while (uffs_readdir(dirp) != NULL)
-			count++;
-		uffs_closedir(dirp);
-	}
-	return count;
-}
-
-static int cmd_pwd(int argc, char *argv[])
-{
-	MSGLN("not supported.");
-	return 0;
-}
-
-static int cmd_cd(int argc, char *argv[])
-{
-	MSGLN("Not supported");
-	return 0;
-}
-
-/** ls [<dir>] */
-static int cmd_ls(int argc, char *argv[])
-{
-	uffs_DIR *dirp;
-	struct uffs_dirent *ent;
-	struct uffs_stat stat_buf;
-	int count = 0;
-	char buf[MAX_PATH_LENGTH+2];
-	const char *name = "/";
-	char *sub;
-	int ret = 0;
-
-	CHK_ARGC(1, 2);
-
-	if (argc > 1)
-		name = argv[1];
-
-	dirp = uffs_opendir(name);
-	if (dirp == NULL) {
-		MSGLN("Can't open '%s' for list", name);
-		ret = -1;
-	}
-	else {
-		MSG("------name-----------size---------serial-----" TENDSTR);
-		ent = uffs_readdir(dirp);
-		while (ent) {
-			MSG("%9s", ent->d_name);
-			strcpy(buf, name);
-			sub = buf;
-			if (name[strlen(name)-1] != '/')
-				sub = strcat(buf, "/");
-			sub = strcat(sub, ent->d_name);
-			if (ent->d_type & FILE_ATTR_DIR) {
-				sub = strcat(sub, "/");
-				MSG("/  \t<%8d>", CountObjectUnder(sub));
-			}
-			else {
-				uffs_stat(sub, &stat_buf);
-				MSG("   \t %8d ", stat_buf.st_size);
-			}
-			MSG("\t%6d" TENDSTR, ent->d_ino);
-			count++;
-			ent = uffs_readdir(dirp);
-		}
-		
-		uffs_closedir(dirp);
-
-		MSG("Total: %d objects." TENDSTR, count);
-	}
-
-	return ret;
-}
-
-/** rm <obj> */
-static int cmd_rm(int argc, char *argv[])
-{
-	const char *name = NULL;
-	int ret = 0;
-	struct uffs_stat st;
-
-	CHK_ARGC(2, 2);
-
-	name = argv[1];
-
-	ret = uffs_stat(name, &st);
-	if (ret < 0) {
-		MSGLN("Can't stat '%s'", name);
-		return ret;
-	}
-
-	if (st.st_mode & US_IFDIR) {
-		ret = uffs_rmdir(name);
-	}
-	else {
-		ret = uffs_remove(name);
-	}
-
-	if (ret == 0)
-		MSGLN("Delete '%s' succ.", name);
-	else
-		MSGLN("Delete '%s' fail!", name);
-
-	return ret;
-}
-
-/** ren|mv <old> <new> */
-static int cmd_ren(int argc, char *argv[])
-{
-	const char *oldname;
-	const char *newname;
-	int ret;
-
-	CHK_ARGC(3, 3);
-
-	oldname = argv[1];
-	newname = argv[2];
-
-	if ((ret = uffs_rename(oldname, newname)) == 0) {
-		MSGLN("Rename from '%s' to '%s' succ.", oldname, newname);
-	}
-	else {
-		MSGLN("Rename from '%s' to '%s' fail!", oldname, newname);
-	}
-
-	return ret;
-}
-
-static void dump_msg_to_stdout(struct uffs_DeviceSt *dev, const char *fmt, ...)
-{
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-	va_list args;
-
-	va_start(args, fmt);
-	//vprintf(fmt, args);
-	if (emu && emu->dump_fp)
-		vfprintf(emu->dump_fp, fmt, args);
-	va_end(args);
-}
-
-/** dump [<mount>] */
-static int cmd_dump(int argc, char *argv[])
-{
-	uffs_Device *dev;
-	uffs_FileEmu *emu;
-	const char *mount = "/";
-	const char *dump_file = "dump.txt";
-
-	if (argc > 1) {
-		mount = argv[1];
-		if (argc > 2)
-			dump_file = argv[2];
-	}
-
-	dev = uffs_GetDeviceFromMountPoint(mount);
-	if (dev == NULL) {
-		MSGLN("Can't get device from mount point %s", mount);
-		return -1;
-	}
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-	emu->dump_fp = fopen(dump_file, "w");
-
-	uffs_DumpDevice(dev, dump_msg_to_stdout);
-
-	if (emu->dump_fp)
-		fclose(emu->dump_fp);
-
-	uffs_PutDevice(dev);
-
-	return 0;
-}
-
-/** st [<mount>] */
-static int cmd_st(int argc, char *argv[])
-{
-	uffs_Device *dev;
-	const char *mount = "/";
-	uffs_FlashStat *s;
-	TreeNode *node;
-
-	if (argc > 1) {
-		mount = argv[1];
-	}
-
-	dev = uffs_GetDeviceFromMountPoint(mount);
-	if (dev == NULL) {
-		MSGLN("Can't get device from mount point %s", mount);
-		return -1;
-	}
-
-	s = &(dev->st);
-
-	MSG("----------- basic info -----------" TENDSTR);
-	MSG("TreeNode size:         %d" TENDSTR, sizeof(TreeNode));
-	MSG("TagStore size:         %d" TENDSTR, sizeof(struct uffs_TagStoreSt));
-	MSG("MaxCachedBlockInfo:    %d" TENDSTR, dev->cfg.bc_caches);
-	MSG("MaxPageBuffers:        %d" TENDSTR, dev->cfg.page_buffers);
-	MSG("MaxDirtyPagesPerBlock: %d" TENDSTR, dev->cfg.dirty_pages);
-	MSG("MaxPathLength:         %d" TENDSTR, MAX_PATH_LENGTH);
-	MSG("MaxObjectHandles:      %d" TENDSTR, MAX_OBJECT_HANDLE);
-	MSG("FreeObjectHandles:     %d" TENDSTR, uffs_GetFreeObjectHandlers());
-	MSG("MaxDirHandles:         %d" TENDSTR, MAX_DIR_HANDLE);
-	MSG("FreeDirHandles:        %d" TENDSTR, uffs_PoolGetFreeCount(uffs_DirEntryBufGetPool()));
-
-	MSG("----------- statistics for '%s' -----------" TENDSTR, mount);
-	MSG("Device Ref:            %d" TENDSTR, dev->ref_count);
-	MSG("Block Erased:          %d" TENDSTR, s->block_erase_count);
-	MSG("Write Page:            %d" TENDSTR, s->page_write_count);
-	MSG("Write Spare:           %d" TENDSTR, s->spare_write_count);
-	MSG("Read Page:             %d" TENDSTR, s->page_read_count - s->page_header_read_count);
-	MSG("Read Header:           %d" TENDSTR, s->page_header_read_count);
-	MSG("Read Spare:            %d" TENDSTR, s->spare_read_count);
-	MSG("I/O Read:              %lu" TENDSTR, s->io_read);
-	MSG("I/O Write:             %lu" TENDSTR, s->io_write);
-
-	MSG("--------- partition info for '%s' ---------" TENDSTR, mount);
-	MSG("Space total:           %d" TENDSTR, uffs_GetDeviceTotal(dev));
-	MSG("Space used:            %d" TENDSTR, uffs_GetDeviceUsed(dev));
-	MSG("Space free:            %d" TENDSTR, uffs_GetDeviceFree(dev));
-	MSG("Page Size:             %d" TENDSTR, dev->attr->page_data_size);
-	MSG("Spare Size:            %d" TENDSTR, dev->attr->spare_size);
-	MSG("Pages Per Block:       %d" TENDSTR, dev->attr->pages_per_block);
-	MSG("Block size:            %d" TENDSTR, dev->attr->page_data_size * dev->attr->pages_per_block);
-	MSG("Total blocks:          %d of %d" TENDSTR, (dev->par.end - dev->par.start + 1), dev->attr->total_blocks);
-	if (dev->tree.bad) {
-		MSG("Bad blocks: ");
-		node = dev->tree.bad;
-		while(node) {
-			MSG("%d, ", node->u.list.block);
-			node = node->u.list.next;
-		}
-		MSG(TENDSTR);
-	}
-
-	uffs_PutDevice(dev);
-
-	return 0;
-
-}
-
-/** cp <src> <des> */
-static int cmd_cp(int argc, char *argv[])
-{
-	const char *src;
-	const char *des;
-	char buf[100];
-	int fd1 = -1, fd2 = -1;
-	int len;
-	BOOL src_local = FALSE, des_local = FALSE;
-	FILE *fp1 = NULL, *fp2 = NULL;
-	int ret = -1;
-
-	CHK_ARGC(3, 3);
-
-	src = argv[1];
-	des = argv[2];
-
-	if (memcmp(src, "::", 2) == 0) {
-		src += 2;
-		src_local = TRUE;
-	}
-	if (memcmp(des, "::", 2) == 0) {
-		des += 2;
-		des_local = TRUE;
-	}
-	
-	if (src_local) {
-		if ((fp1 = fopen(src, "rb")) == NULL) {
-			MSGLN("Can't open %s for copy.", src);
-			goto fail_ext;
-		}
-	}
-	else {
-		if ((fd1 = uffs_open(src, UO_RDONLY)) < 0) {
-			MSGLN("Can't open %s for copy.", src);
-			goto fail_ext;
-		}
-	}
-
-	if (des_local) {
-		if ((fp2 = fopen(des, "wb")) == NULL) {
-			MSGLN("Can't open %s for copy.", des);
-			goto fail_ext;
-		}
-	}
-	else {
-		if ((fd2 = uffs_open(des, UO_RDWR|UO_CREATE|UO_TRUNC)) < 0) {
-			MSGLN("Can't open %s for copy.", des);
-			goto fail_ext;
-		}
-	}
-
-	ret = 0;
-	while (	(src_local ? (feof(fp1) == 0) : (uffs_eof(fd1) == 0)) ) {
-		ret = -1;
-		if (src_local) {
-			len = fread(buf, 1, sizeof(buf), fp1);
-		}
-		else {
-			len = uffs_read(fd1, buf, sizeof(buf));
-		}
-		if (len == 0) {
-			ret = -1;
-			break;
-		}
-		if (len < 0) {
-			MSGLN("read file %s fail ?", src);
-			break;
-		}
-		if (des_local) {
-			if ((int)fwrite(buf, 1, len, fp2) != len) {
-				MSGLN("write file %s fail ? ", des);
-				break;
-			}
-		}
-		else {
-			if (uffs_write(fd2, buf, len) != len) {
-				MSGLN("write file %s fail ? ", des);
-				break;
-			}
-		}
-		ret = 0;
-	}
-
-fail_ext:
-	if (fd1 > 0)
-		uffs_close(fd1);
-	if (fd2 > 0)
-		uffs_close(fd2);
-	if (fp1) 
-		fclose(fp1);
-	if (fp2)
-		fclose(fp2);
-
-	return ret;
-}
-
-/** cat <file> [<offset>] [<size>] */
-static int cmd_cat(int argc, char *argv[])
-{
-	int fd;
-	const char *name = NULL;
-	char buf[100];
-	int start = 0, size = 0, printed = 0, n, len;
-	int ret = -1;
-
-	CHK_ARGC(2, 4);
-
-	name = argv[1];
-
-	if ((fd = uffs_open(name, UO_RDONLY)) < 0) {
-		MSGLN("Can't open %s", name);
-		goto fail;
-	}
-
-	if (argc > 2) {
-		start = strtol(argv[2], NULL, 10);
-		if (argc > 3) size = strtol(argv[3], NULL, 10);
-	}
-
-	if (start >= 0)
-		uffs_seek(fd, start, USEEK_SET);
-	else
-		uffs_seek(fd, -start, USEEK_END);
-
-	while (uffs_eof(fd) == 0) {
-		len = uffs_read(fd, buf, sizeof(buf) - 1);
-		if (len == 0) 
-			break;
-		if (len > 0) {
-			if (size == 0 || printed < size) {
-				n = (size == 0 ? len : (size - printed > len ? len : size - printed));
-				buf[n] = 0;
-				MSG("%s", buf);
-				printed += n;
-			}
-			else {
-				break;
-			}
-		}
-	}
-	MSG(TENDSTR);
-	uffs_close(fd);
-
-	ret = 0;
-fail:
-
-	return ret;
-}
-
-/** mount partition or show mounted partitions
- *		mount [<mount>]
- */
-static int cmd_mount(int argc, char *argv[])
-{
-	uffs_MountTable *tab;
-	const char *mount = NULL;
-
-	if (argc == 1) {
-		tab = uffs_MtbGetMounted();
-		while (tab) {
-			MSG(" %s : (%d) ~ (%d)\n", tab->mount, tab->start_block, tab->end_block);
-			tab = tab->next;
-		}
-	}
-	else {
-		mount = argv[1];
-		if (uffs_Mount(mount) < 0) {
-			MSGLN("Can't mount %s", mount);
-			return -1;
-		}
-	}
-	return 0;
-}
-
-/** unmount parition or show unmounted partitions
- *		umount [<mount>]
- */
-static int cmd_unmount(int argc, char *argv[])
-{
-	uffs_MountTable *tab;
-	const char *mount = NULL;
-
-	if (argc == 1) {
-		tab = uffs_MtbGetUnMounted();
-		while (tab) {
-			MSG(" %s : (%d) ~ (%d)\n", tab->mount, tab->start_block, tab->end_block);
-			tab = tab->next;
-		}
-	}
-	else {
-		mount = argv[1];
-		if (uffs_UnMount(mount) < 0) {
-			MSGLN("Can't unmount %s", mount);
-			return -1;
-		}
-	}
-
-	return 0;
-}
-
-/** inspect buffers
- *		inspb [<mount>]
- */
-static int cmd_inspb(int argc, char *argv[])
-{
-	uffs_Device *dev;
-	const char *mount = "/";
-
-	CHK_ARGC(1, 2);
-
-	dev = uffs_GetDeviceFromMountPoint(mount);
-	if (dev == NULL) {
-		MSGLN("Can't get device from mount point %s", mount);
-		return -1;
-	}
-	uffs_BufInspect(dev);
-	uffs_PutDevice(dev);
-
-	return 0;
-
-}
-
-/** print block wear-leveling information
- *		wl [<mount>]
- */
-static int cmd_wl(int argc, char *argv[])
-{
-	const char *mount = "/";
-	uffs_Device *dev;
-	struct uffs_PartitionSt *par;
-	uffs_FileEmu *emu;
-	int i, max;
-	u32 n;
-
-#define NUM_PER_LINE	10
-
-	CHK_ARGC(1, 2);
-
-	if (argc > 1) {
-		mount = argv[1];
-	}
-
-	dev = uffs_GetDeviceFromMountPoint(mount);
-	if (dev == NULL) {
-		MSGLN("Can't get device from mount point %s", mount);
-		return -1;
-	}
-
-	par = &dev->par;
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-	max = -1;
-
-	for (i = 0; i < par->end - par->start; i++) {
-		if ((i % NUM_PER_LINE) == 0) {
-			MSG("%04d:", i + par->start);
-		}
-		n = i + par->start;
-		max = (max == -1 ? n :
-				(emu->em_monitor_block[n] > emu->em_monitor_block[max] ? n : max)
-			   );
-		MSG(" %4d", emu->em_monitor_block[n]);
-		if (uffs_TreeFindBadNodeByBlock(dev, n))
-			MSG("%c", 'x');
-		else if (uffs_TreeFindErasedNodeByBlock(dev, n))
-			MSG("%c", ' ');
-		else
-			MSG("%c", '.');
-		if (((i + 1) % NUM_PER_LINE) == 0)
-			MSG("\n");
-	}
-	MSG("\n");
-	MSG("Total blocks %d, peak erase count %d at block %d\n",
-		par->end - par->start, max == -1 ? 0 : emu->em_monitor_block[max], max);
-
-	uffs_PutDevice(dev);
-
-	return 0;
-}
-
-static const struct cli_command helper_cmds[] = 
-{
-    { cmd_format,	"format",		"[<mount>]",		"Format device" },
-    { cmd_mkf,		"mkfile",		"<name>",			"create a new file" },
-    { cmd_mkdir,	"mkdir",		"<name>",			"create a new directory" },
-    { cmd_rm,		"rm",			"<name>",			"delete file/directory" },
-    { cmd_ren,		"mv|ren",		"<old> <new>",		"rename file/directory" },
-    { cmd_ls,		"ls",			"<dir>",			"list dirs and files" },
-    { cmd_st,		"info|st",		"<mount>",			"show statistic infomation" },
-    { cmd_cp,		"cp",			"<src> <des>",		"copy files. the local file name start with '::'" },
-    { cmd_cat,		"cat",			"<name>",			"show file content" },
-    { cmd_pwd,		"pwd",			NULL,				"show current dir" },
-    { cmd_cd,		"cd",			"<path>",			"change current dir" },
-    { cmd_mount,	"mount",		"[<mount>]",		"mount partition or list mounted partitions" },
-    { cmd_unmount,	"umount",		"[<mount>]",		"unmount partition" },
-	{ cmd_dump,		"dump",			"[<mount>]",		"dump file system", },
-	{ cmd_wl,		"wl",			"[<mount>]",		"show block wear-leveling info", },
-	{ cmd_inspb,	"inspb",		"[<mount>]",		"inspect buffer", },
-    { NULL, NULL, NULL, NULL }
-};
-
-static struct cli_commandset helper_cmdset = {
-	helper_cmds,
-};
-
-struct cli_commandset * get_helper_cmds()
-{
-	return &helper_cmdset;
-};
diff --git a/components/dfs/filesystems/uffs/src/emu/test_cmds.c b/components/dfs/filesystems/uffs/src/emu/test_cmds.c
deleted file mode 100644
index a4bc1eca41..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/test_cmds.c
+++ /dev/null
@@ -1,1186 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file test_cmds.c
- * \brief commands for test uffs
- * \author Ricky Zheng
- */
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_fd.h"
-#include "uffs/uffs_utils.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs_mtb.h"
-#include "uffs/uffs_find.h"
-#include "uffs/uffs_badblock.h"
-#include "cmdline.h"
-#include "api_test.h"
-
-#define PFX "test: "
-
-#define	MAX_TEST_BUF_LEN	8192
-
-#define SEQ_INIT	10
-#define SEQ_MOD_LEN	120
-
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-
-static void memcp_seq(void *des, int size, int start_pos)
-{
-	int i;
-	u8 *p = (u8 *)des;
-	
-	for (i = 0; i < size; i++, p++) {
-		*p = (start_pos + SEQ_INIT + i) % SEQ_MOD_LEN;
-	}
-}
-
-static UBOOL check_entry_exist(const char *name)
-{
-	struct uffs_stat sb;
-
-	return uffs_stat(name, &sb) < 0 ? U_FALSE : U_TRUE;
-}
-
-static URET do_write_test_file(int fd, int size)
-{
-	long pos;
-	unsigned char buf[100];
-	int len;
-
-	while (size > 0) {
-		pos = uffs_seek(fd, 0, USEEK_CUR);
-		len = (size > sizeof(buf) ? sizeof(buf) : size);
-		memcp_seq(buf, len, pos);
-		if (uffs_write(fd, buf, len) != len) {
-			MSGLN("Write file failed, size %d at %d", len, pos);
-			return U_FAIL;
-		}
-		size -= len;
-	}
-
-	return U_SUCC;
-}
-
-static URET test_write_file(const char *file_name, int pos, int size)
-{
-	int ret = U_FAIL;
-	int fd = -1;
-
-	if ((fd = uffs_open(file_name, UO_RDWR|UO_CREATE)) < 0) {
-		MSGLN("Can't open file %s for write.", file_name);
-		goto test_exit;
-	}
-
-	if (uffs_seek(fd, pos, USEEK_SET) != pos) {
-		MSGLN("Can't seek file %s at pos %d", file_name, pos);
-		goto test_failed;
-	}
-
-	if (do_write_test_file(fd, size) == U_FAIL) {
-		MSGLN("Write file %s failed.", file_name);
-		goto test_failed;
-	}
-	ret = U_SUCC;
-
-test_failed:
-	uffs_close(fd);
-
-test_exit:
-
-	return ret;
-}
-
-
-static URET test_verify_file(const char *file_name, UBOOL noecc)
-{
-	int fd;
-	int ret = U_FAIL;
-	unsigned char buf[100];
-	int i, pos, len;
-	u8 x;
-
-	if ((fd = uffs_open(file_name, (noecc ? UO_RDONLY|UO_NOECC : UO_RDONLY))) < 0) {
-		MSGLN("Can't open file %s for read.", file_name);
-		goto test_exit;
-	}
-
-	pos = 0;
-	while (!uffs_eof(fd)) {
-		len = uffs_read(fd, buf, sizeof(buf));
-		if (len <= 0)
-			goto test_failed;
-		for (i = 0; i < len; i++) {
-			x = (SEQ_INIT + pos + i) % SEQ_MOD_LEN;
-			if (buf[i] != x) {
-				MSGLN("Verify file %s failed at: %d, expect 0x%02x but got 0x%02x", file_name, pos + i, x, buf[i]);
-				goto test_failed;
-			}
-		}
-		pos += len;
-	}
-
-	if (pos != uffs_seek(fd, 0, USEEK_END)) {
-		MSGLN("Verify file %s failed. invalid file length.", file_name);
-		goto test_failed;
-	}
-
-	MSGLN("Verify file %s succ.", file_name);
-	ret = U_SUCC;
-
-test_failed:
-	uffs_close(fd);
-
-test_exit:
-
-	return ret;
-}
-
-static URET test_append_file(const char *file_name, int size)
-{
-	int ret = U_FAIL;
-	int fd = -1;
-
-	if ((fd = uffs_open(file_name, UO_RDWR|UO_APPEND|UO_CREATE)) < 0) {
-		MSGLN("Can't open file %s for append.", file_name);
-		goto test_exit;
-	}
-
-	uffs_seek(fd, 0, USEEK_END);
-
-	if (do_write_test_file(fd, size) == U_FAIL) {
-		MSGLN("Write file %s failed.", file_name);
-		goto test_failed;
-	}
-	ret = U_SUCC;
-
-test_failed:
-	uffs_close(fd);
-
-test_exit:
-
-	return ret;
-}
-
-
-/* test create file, write file and read back */
-static int cmd_t1(int argc, char *argv[])
-{
-	int fd;
-	URET ret;
-	char buf[100];
-	const char *name;
-
-	if (argc < 2) {
-		return CLI_INVALID_ARG;
-	}
-
-	name = argv[1];
-
-	fd = uffs_open(name, UO_RDWR|UO_CREATE|UO_TRUNC);
-	if (fd < 0) {
-		MSGLN("Can't open %s", name);
-		goto fail;
-	}
-
-	sprintf(buf, "123456789ABCDEF");
-	ret = uffs_write(fd, buf, strlen(buf));
-	MSGLN("write %d bytes to file, content: %s", ret, buf);
-
-	ret = uffs_seek(fd, 3, USEEK_SET);
-	MSGLN("new file position: %d", ret);
-
-	memset(buf, 0, sizeof(buf));
-	ret = uffs_read(fd, buf, 5);
-	MSGLN("read %d bytes, content: %s", ret, buf);
-
-	uffs_close(fd);
-
-	return 0;
-fail:
-
-	return -1;
-}
-
-
-static URET DoTest2(void)
-{
-	int fd = -1;
-	URET ret = U_FAIL;
-	char buf[100], buf_1[100];
-
-	fd = uffs_open("/abc/", UO_RDWR|UO_DIR);
-	if (fd < 0) {
-		MSGLN("Can't open dir abc, err: %d", uffs_get_error());
-		MSGLN("Try to create a new one...");
-		fd = uffs_open("/abc/", UO_RDWR|UO_CREATE|UO_DIR);
-		if (fd < 0) {
-			MSGLN("Can't create new dir /abc/");
-			goto exit_test;
-		}
-		else {
-			uffs_close(fd);
-		}
-	}
-	else {
-		uffs_close(fd);
-	}
-	
-	fd = uffs_open("/abc/test.txt", UO_RDWR|UO_CREATE);
-	if (fd < 0) {
-		MSGLN("Can't open /abc/test.txt");
-		goto exit_test;
-	}
-
-	sprintf(buf, "123456789ABCDEF");
-	ret = uffs_write(fd, buf, strlen(buf));
-	MSGLN("write %d bytes to file, content: %s", ret, buf);
-
-	ret = uffs_seek(fd, 3, USEEK_SET);
-	MSGLN("new file position: %d", ret);
-
-	memset(buf_1, 0, sizeof(buf_1));
-	ret = uffs_read(fd, buf_1, 5);
-	MSGLN("read %d bytes, content: %s", ret, buf_1);
-
-	if (memcmp(buf + 3, buf_1, 5) != 0) {
-		ret = U_FAIL;
-	}
-	else {
-		ret = U_SUCC;
-	}
-
-	uffs_close(fd);
-
-exit_test:
-
-	return ret;
-}
-
-
-static int cmd_t2(int argc, char *argv[])
-{
-	URET ret;
-	MSGLN("Test return: %s !", (ret = DoTest2()) == U_SUCC ? "succ" : "failed");
-
-	return (ret == U_SUCC) ? 0 : -1;
-}
-
-
-static int cmd_VerifyFile(int argc, char *argv[])
-{
-	const char *name;
-	UBOOL noecc = U_FALSE;
-
-	if (argc < 2) {
-		return CLI_INVALID_ARG;
-	}
-
-	name = argv[1];
-	if (argc > 2 && strcmp(argv[2], "noecc") == 0) {
-		noecc = U_TRUE;
-	}
-
-	MSGLN("Check file %s ... ", name);
-	if (test_verify_file(name, noecc) != U_SUCC) {
-		MSGLN("Verify file %s failed.", name);
-		return -1;
-	}
-
-	return 0;
-}
-
-/* Test file append and 'random' write */
-static int cmd_t3(int argc, char *argv[])
-{
-	const char *name;
-	int i;
-	UBOOL noecc = U_FALSE;
-	int write_test_seq[] = { 20, 10, 500, 40, 1140, 900, 329, 4560, 352, 1100 };
-
-	if (argc < 2) {
-		return CLI_INVALID_ARG;
-	}
-
-	name = argv[1];
-	if (argv[2] && strcmp(argv[2], "noecc") == 0) {
-		noecc = U_TRUE;
-	}
-
-	if (check_entry_exist(name)) {
-		MSGLN("Check file %s ... ", name);
-		if (test_verify_file(name, noecc) != U_SUCC) {
-			MSGLN("Verify file %s failed.", name);
-			return -1;
-		}
-	}
-
-	MSGLN("Test append file %s ...", name);
-	for (i = 1; i < 500; i += 29) {
-		if (test_append_file(name, i) != U_SUCC) {
-			MSGLN("Append file %s test failed at %d !", name, i);
-			return -1;
-		}
-	}
-
-	MSGLN("Check file %s ... ", name);
-	if (test_verify_file(name, noecc) != U_SUCC) {
-		MSGLN("Verify file %s failed.", name);
-		return -1;
-	}
-
-	MSGLN("Test write file ...");
-	for (i = 0; i < sizeof(write_test_seq) / sizeof(int) - 1; i++) {
-		if (test_write_file(name, write_test_seq[i], write_test_seq[i+1]) != U_SUCC) {
-			MSGLN("Test write file failed !");
-			return -1;
-		}
-	}
-
-	MSGLN("Check file %s ... ", name);
-	if (test_verify_file(name, noecc) != U_SUCC) {
-		MSGLN("Verify file %s failed.", name);
-		return -1;
-	}
-
-	MSGLN("Test succ !");
-
-	return 0;
-}
-
-/* open two files and test write */
-static int cmd_t4(int argc, char *argv[])
-{
-	int fd1 = -1, fd2 = -1;
-
-	MSGLN("open /a ...");
-	if ((fd1 = uffs_open("/a", UO_RDWR | UO_CREATE)) < 0) {
-		MSGLN("Can't open /a");
-		goto fail_exit;
-	}
-
-	MSGLN("open /b ...");
-	if ((fd2 = uffs_open("/b", UO_RDWR | UO_CREATE)) < 0) {
-		MSGLN("Can't open /b");
-		uffs_close(fd1);
-		goto fail_exit;
-	}
-
-	MSGLN("write (1) to /a ...");
-	uffs_write(fd1, "Hello,", 6);
-	MSGLN("write (1) to /b ...");
-	uffs_write(fd2, "Hello,", 6);
-	MSGLN("write (2) to /a ...");
-	uffs_write(fd1, "World.", 6);
-	MSGLN("write (2) to /b ...");
-	uffs_write(fd2, "World.", 6);
-	MSGLN("close /a ...");
-	uffs_close(fd1);
-	MSGLN("close /b ...");
-	uffs_close(fd2);
-
-	return 0;
-
-fail_exit:
-	return -1;
-}
-
-/* test appending file */
-static int cmd_t5(int argc, char *argv[])
-{
-	int fd = -1;
-	URET ret;
-	char buf[100];
-	const char *name;
-
-	if (argc < 2) {
-		return CLI_INVALID_ARG;
-	}
-
-	name = argv[1];
-
-	fd = uffs_open(name, UO_RDWR|UO_APPEND);
-	if (fd < 0) {
-		MSGLN("Can't open %s", name);
-		goto fail;
-	}
-
-	sprintf(buf, "append test...");
-	ret = uffs_write(fd, buf, strlen(buf));
-	if (ret != strlen(buf)) {
-		MSGLN("write file failed, %d/%d", ret, strlen(buf));
-		ret = -1;
-	}
-	else {
-		MSGLN("write %d bytes to file, content: %s", ret, buf);
-		ret = 0;
-	}
-
-	uffs_close(fd);
-
-	return ret;
-fail:
-	return -1;
-}
-
-
-/* usage: t_pgrw
- *
- * This test case test page read/write
- */
-static int cmd_TestPageReadWrite(int argc, char *argv[])
-{
-	TreeNode *node = NULL;
-	uffs_Device *dev;
-	uffs_Tags local_tag;
-	uffs_Tags *tag = &local_tag;
-	int ret;
-	u16 block;
-	u16 page;
-	uffs_Buf *buf = NULL;
-
-	u32 i;
-	int rc = -1;
-
-	dev = uffs_GetDeviceFromMountPoint("/");
-	if (!dev)
-		goto ext;
-
-	buf = uffs_BufClone(dev, NULL);
-	if (!buf)
-		goto ext;
-
-	node = uffs_TreeGetErasedNode(dev);
-	if (!node) {
-		MSGLN("no free block ?");
-		goto ext;
-	}
-
-	for (i = 0; i < dev->com.pg_data_size; i++) {
-		buf->data[i] = i & 0xFF;
-	}
-
-	block = node->u.list.block;
-	page = 1;
-
-	TAG_DIRTY_BIT(tag) = TAG_DIRTY;
-	TAG_VALID_BIT(tag) = TAG_VALID;
-	TAG_DATA_LEN(tag) = dev->com.pg_data_size;
-	TAG_TYPE(tag) = UFFS_TYPE_DATA;
-	TAG_PAGE_ID(tag) = 3;
-	TAG_PARENT(tag) = 100;
-	TAG_SERIAL(tag) = 10;
-	TAG_BLOCK_TS(tag) = 1;
-	SEAL_TAG(tag);
-
-	ret = uffs_FlashWritePageCombine(dev, block, page, buf, tag);
-	if (UFFS_FLASH_HAVE_ERR(ret)) {
-		MSGLN("Write page error: %d", ret);
-		goto ext;
-	}
-
-	ret = uffs_FlashReadPage(dev, block, page, buf, U_FALSE);
-	if (UFFS_FLASH_HAVE_ERR(ret)) {
-		MSGLN("Read page error: %d", ret);
-		goto ext;
-	}
-
-	for (i = 0; i < dev->com.pg_data_size; i++) {
-		if (buf->data[i] != (i & 0xFF)) {
-			MSGLN("Data verify fail at: %d", i);
-			goto ext;
-		}
-	}
-
-	ret = uffs_FlashReadPageTag(dev, block, page, tag);
-	if (UFFS_FLASH_HAVE_ERR(ret)) {
-		MSGLN("Read tag (page spare) error: %d", ret);
-		goto ext;
-	}
-	
-	// verify tag:
-	if (!TAG_IS_SEALED(tag)) {
-		MSGLN("not sealed ? Tag verify fail!");
-		goto ext;
-	}
-
-	if (!TAG_IS_DIRTY(tag)) {
-		MSGLN("not dirty ? Tag verify fail!");
-		goto ext;
-	}
-
-	if (!TAG_IS_VALID(tag)) {
-		MSGLN("not valid ? Tag verify fail!");
-		goto ext;
-	}
-
-	if (TAG_DATA_LEN(tag) != dev->com.pg_data_size ||
-		TAG_TYPE(tag) != UFFS_TYPE_DATA ||
-		TAG_PAGE_ID(tag) != 3 ||
-		TAG_PARENT(tag) != 100 ||
-		TAG_SERIAL(tag) != 10 ||
-		TAG_BLOCK_TS(tag) != 1) {
-
-		MSGLN("Tag verify fail!");
-		goto ext;
-	}
-
-	MSGLN("Page read/write test succ.");
-	rc = 0;
-
-ext:
-	if (node) {
-		uffs_FlashEraseBlock(dev, node->u.list.block);
-		if (HAVE_BADBLOCK(dev))
-			uffs_BadBlockProcess(dev, node);
-		else
-			uffs_TreeInsertToErasedListTail(dev, node);
-	}
-
-	if (dev)
-		uffs_PutDevice(dev);
-
-	if (buf)
-		uffs_BufFreeClone(dev, buf);
-
-	return rc;
-}
-
-/* t_format : test format partition */
-static int cmd_TestFormat(int argc, char *argv[])
-{
-	URET ret;
-	const char *mount = "/";
-	uffs_Device *dev;
-	UBOOL force = U_FALSE;
-	const char *test_file = "/a.txt";
-	int fd;
-	int rc = -1;
-
-	if (argc > 1) {
-		mount = argv[1];
-		if (argc > 2 && strcmp(argv[2], "-f") == 0)
-			force = U_TRUE;
-	}
-
-	fd = uffs_open(test_file, UO_RDWR | UO_CREATE);
-	if (fd < 0) {
-		MSGLN("can't create test file %s", test_file);
-		goto ext;
-	}
-
-	MSGLN("Formating %s ... ", mount);
-
-	dev = uffs_GetDeviceFromMountPoint(mount);
-	if (dev == NULL) {
-		MSGLN("Can't get device from mount point.");
-		goto ext;
-	}
-	else {
-		ret = uffs_FormatDevice(dev, force);
-		if (ret != U_SUCC) {
-			MSGLN("Format fail.");
-		}
-		else {
-			MSGLN("Format succ.");
-			rc = 0;
-		}
-		uffs_PutDevice(dev);
-	}
-
-	uffs_close(fd);  // this should fail on signature check !
-ext:
-	return rc;
-}
-
-
-
-/**
- * usage: t_pfs <start> <n>
- *
- * for example: t_pfs /x/ 100
- *
- * This test case performs:
- *   1) create <n> files under <start>, write full file name as file content
- *   2) list files under <start>, check files are all listed once
- *   3) check file content aganist file name
- *   4) delete files on success
- */
-static int cmd_TestPopulateFiles(int argc, char *argv[])
-{
-	const char *start = "/";
-	int count = 80;
-	int i, fd, num;
-	char name[128];
-	char buf[128];
-	uffs_DIR *dirp;
-	struct uffs_dirent *ent;
-	unsigned long bitmap[50] = {0};	// one bit per file, maximu 32*50 = 1600 files
-	UBOOL succ = U_TRUE;
-
-#define SBIT(n) bitmap[(n)/(sizeof(bitmap[0]) * 8)] |= (1 << ((n) % (sizeof(bitmap[0]) * 8)))
-#define GBIT(n) (bitmap[(n)/(sizeof(bitmap[0]) * 8)] & (1 << ((n) % (sizeof(bitmap[0]) * 8))))
-
-	if (argc > 1) {
-		start = argv[1];
-		if (argc > 2) {
-			count = strtol(argv[2], NULL, 10);
-		}
-	}
-
-	if (count > sizeof(bitmap) * 8)
-		count = sizeof(bitmap) * 8;
-
-	for (i = 0, fd = -1; i < count; i++) {
-		sprintf(name, "%sFile%03d", start, i);
-		fd = uffs_open(name, UO_RDWR|UO_CREATE|UO_TRUNC);
-		if (fd < 0) {
-			MSGLN("Create file %s failed", name);
-			break;
-		}
-		if (uffs_write(fd, name, strlen(name)) != strlen(name)) { // write full path name to file
-			MSGLN("Write to file %s failed", name);
-			uffs_close(fd);
-			break;
-		}
-		uffs_close(fd);
-	}
-
-	if (i < count) {
-		// not success, need to clean up
-		for (; i >= 0; i--) {
-			sprintf(name, "%sFile%03d", start, i);
-			if (uffs_remove(name) < 0)
-				MSGLN("Delete file %s failed", name);
-		}
-		succ = U_FALSE;
-		goto ext;
-	}
-
-	MSGLN("%d files created.", count);
-
-	// list files
-	dirp = uffs_opendir(start);
-	if (dirp == NULL) {
-		MSGLN("Can't open dir %s !", start);
-		succ = U_FALSE;
-		goto ext;
-	}
-	ent = uffs_readdir(dirp);
-	while (ent && succ) {
-
-		if (!(ent->d_type & FILE_ATTR_DIR) &&					// not a dir
-			ent->d_namelen == strlen("File000") &&				// check file name length
-			memcmp(ent->d_name, "File", strlen("File")) == 0) {	// file name start with "File"
-			
-			MSGLN("List entry %s", ent->d_name);
-
-			num = strtol(ent->d_name + 4, NULL, 10);
-			if (GBIT(num)) {
-				// file already listed ?
-				MSGLN("File %d listed twice !", ent->d_name);
-				succ = U_FALSE;
-				break;
-			}
-			SBIT(num);
-
-			// check file content
-			sprintf(name, "%s%s", start, ent->d_name);
-			fd = uffs_open(name, UO_RDONLY);
-			if (fd < 0) {
-				MSGLN("Open file %d for read failed !", name);
-			}
-			else {
-				memset(buf, 0, sizeof(buf));
-				num = uffs_read(fd, buf, sizeof(buf));
-				if (num != strlen(name)) {
-					MSGLN("%s Read data length expect %d but got %d !", name, strlen(name), num);
-					succ = U_FALSE;
-				}
-				else {
-					if (memcmp(name, buf, num) != 0) {
-						MSGLN("File %s have wrong content '%s' !", name, buf);
-						succ = U_FALSE;
-					}
-				}
-				uffs_close(fd);
-			}
-		}
-		ent = uffs_readdir(dirp);
-	}
-	uffs_closedir(dirp);
-
-	// check absent files
-	for (i = 0; i < count; i++) {
-		if (GBIT(i) == 0) {
-			sprintf(name, "%sFile%03d", start, i);
-			MSGLN("File %s not listed !", name);
-			succ = U_FALSE;
-		}
-	}
-	
-	// delete files if pass the test
-	for (i = 0; succ && i < count; i++) {
-		sprintf(name, "%sFile%03d", start, i);
-		if (uffs_remove(name) < 0) {
-			MSGLN("Delete file %s failed", name);
-			succ = U_FALSE;
-		}
-	}
-
-ext:
-	MSGLN("Populate files test %s !", succ ? "SUCC" : "FAILED");
-	return succ ? 0 : -1;
-
-}
-
-/**
- * Open <file> with <oflag>, save fd to $1
- *
- *		t_open <oflag> <file>
- */
-static int cmd_topen(int argc, char *argv[])
-{
-	int fd;
-	const char *name;
-	char *p;
-	int oflag = 0;
-
-	CHK_ARGC(3, 3);
-
-	name = argv[2];
-	p = argv[1];
-	while(*p) {
-		switch(*p++) {
-		case 'a':
-			oflag |= UO_APPEND;
-			break;
-		case 'c':
-			oflag |= UO_CREATE;
-			break;
-		case 't':
-			oflag |= UO_TRUNC;
-			break;
-		case 'w':
-			oflag |= UO_RDWR;
-			break;
-		case 'r':
-			oflag |= UO_RDONLY;
-			break;
-		}
-	}
-
-	fd = uffs_open(name, oflag);
-
-	if (fd >= 0) {
-		cli_env_set('1', fd);
-		return 0;
-	}
-	else {
-		return -1;
-	}
-}
-
-/**
- * seek file pointer
- *	t_seek <fd> <offset> [<origin>]
- * if success, $1 = file position after seek
- */
-static int cmd_tseek(int argc, char *argv[])
-{
-	int origin = USEEK_SET;
-	int offset;
-	int fd;
-	int ret;
-
-	CHK_ARGC(3, 4);
-
-	if (sscanf(argv[1], "%d", &fd) != 1 ||
-		sscanf(argv[2], "%d", &offset) != 1)
-	{
-		return CLI_INVALID_ARG;
-	}
-
-	if (argc > 3) {
-		switch(argv[3][0]) {
-		case 's':
-			origin = USEEK_SET;
-			break;
-		case 'c':
-			origin = USEEK_CUR;
-			break;
-		case 'e':
-			origin = USEEK_END;
-			break;
-		default:
-			return CLI_INVALID_ARG;
-		}
-	}
-
-	ret = uffs_seek(fd, offset, origin);
-	if (ret >= 0) {
-		cli_env_set('1', ret);
-		return 0;
-	}
-	else {
-		return -1;
-	}
-}
-
-/**
- * close file
- *	t_close <fd>
- */
-static int cmd_tclose(int argc, char *argv[])
-{
-	int fd;
-
-	CHK_ARGC(2, 2);
-
-	if (sscanf(argv[1], "%d", &fd) == 1) {
-		return uffs_close(fd);
-	}
-	else
-		return -1;
-}
-
-/**
- * write file
- *	t_write <fd> <txt> [..]
- */
-static int cmd_twrite(int argc, char *argv[])
-{
-	int fd;
-	int i, len = 0;
-	int ret = 0;
-
-	CHK_ARGC(3, 0);
-	if (sscanf(argv[1], "%d", &fd) != 1) {
-		return -1;
-	}
-	else {
-		for (i = 2; i < argc; i++) {
-			len = strlen(argv[i]);
-			if (uffs_write(fd, argv[i], len) != len) {
-				ret = -1;
-				break;
-			}
-		}
-	}
-
-	if (ret == 0)
-		cli_env_set('1', len);
-
-	return ret;
-}
-
-/**
- * read and check seq file
- *	t_check_seq <fd> <size>
- */
-static int cmd_tcheck_seq(int argc, char *argv[])
-{
-	int fd;
-	int len, size;
-	int ret = 0, r_ret = 0;
-	long pos;
-	u8 buf[MAX_TEST_BUF_LEN];
-	int i;
-	u8 x;
-
-	CHK_ARGC(3, 3);
-
-	if (sscanf(argv[1], "%d", &fd) != 1) {
-		return -1;
-	}
-
-	if (sscanf(argv[2], "%d", &len) != 1) {
-		return -1;
-	}
-
-	pos = uffs_tell(fd);
-	while (len > 0) {
-		size = (len > sizeof(buf) ? sizeof(buf) : len);
-		if ((r_ret = uffs_read(fd, buf, size)) < 0) {
-			MSGLN("Read fail! fd = %d, size = %d, pos = %ld", fd, size, pos);
-			ret = -1;
-			break;
-		}
-
-		// check seq
-		for (i = 0; i < r_ret; i++) {
-			x = (pos + SEQ_INIT + i) % SEQ_MOD_LEN;
-			if (buf[i] != x) {
-				MSGLN("Check fail! fd = %d, pos = %ld (expect 0x%02x but 0x%02x)\n", fd, pos + i, x, buf[i]);
-				ret = -1;
-				break;
-			}
-		}
-
-		if (ret < 0)
-			break;
-
-		len -= r_ret;
-		pos += r_ret;
-	}
-
-	return ret;
-}
-
-
-
-/**
- * write random seq to file
- *	t_write_seq <fd> <size>
- */
-static int cmd_twrite_seq(int argc, char *argv[])
-{
-	int fd;
-	int len = 0, size = 0;
-	long pos = 0;
-	int ret = 0, w_ret = 0;
-	u8 buf[MAX_TEST_BUF_LEN];
-
-	CHK_ARGC(3, 3);
-	if (sscanf(argv[1], "%d", &fd) != 1) {
-		return -1;
-	}
-
-	if (sscanf(argv[2], "%d", &len) != 1) {
-		return -1;
-	}
-
-	pos = uffs_tell(fd);
-	while (len > 0) {
-		size = (len < sizeof(buf) ? len : sizeof(buf));
-		memcp_seq(buf, size, pos);
-		if ((w_ret = uffs_write(fd, buf, size)) < 0) {
-			MSGLN("write fail! fd = %d, size = %d, pos = %ld", fd, size, pos);
-			ret = -1;
-			break;
-		}
-		pos += w_ret;
-		len -= w_ret;
-	}
-
-	if (ret == 0)
-		cli_env_set('1', len);
-
-	return ret;
-}
-
-
-/**
- * read and check file
- *	t_read <fd> <txt>
- */
-static int cmd_tread(int argc, char *argv[])
-{
-	int fd;
-	int len, n;
-	int ret = 0;
-	char buf[64];
-	char *p;
-
-	CHK_ARGC(3, 3);
-
-	if (sscanf(argv[1], "%d", &fd) != 1) {
-		return -1;
-	}
-	else {
-		len = strlen(argv[2]);
-		n = 0;
-		p = argv[2];
-		while (n < len) {
-			n = (len > sizeof(buf) ? sizeof(buf) : len);
-			if (uffs_read(fd, buf, n) != n ||
-				memcmp(buf, p, n) != 0) {
-				ret = -1;
-				break;
-			}
-			len -= n;
-			p += n;
-		}
-	}
-
-	return ret;
-}
-
-
-static void do_dump_page(uffs_Device *dev, uffs_Buf *buf)
-{
-	int i, j;
-	const int line = 16;
-	struct uffs_MiniHeaderSt *header = (struct uffs_MiniHeaderSt *)buf->header;
-	MSG("  header.status = %d\n", header->status);
-	if (header->status != 0xFF) {
-		for (i = 0; i < 64; i += line) {
-			MSG("    ");
-			for (j = 0; j < line; j++)
-				MSG("%02X ", buf->header[i+j]);
-			MSG("\n");
-		}
-		MSG("\n");
-	}
-}
-
-static void do_dump_tag(uffs_Device *dev, uffs_Tags *tag)
-{
-	MSG("  tag sealed: %s\n", TAG_IS_SEALED(tag) ? "yes" : "no");
-	if (TAG_IS_GOOD(tag)) {
-		if (TAG_IS_DIRTY(tag)) {
-			MSG("    block_ts = %d\n", tag->s.block_ts);
-			MSG("    type = %d\n", tag->s.type);
-			MSG("    dirty = %d\n", tag->s.dirty);
-			MSG("    page_id = %d\n", tag->s.page_id);
-			MSG("    serial = %d\n", tag->s.serial);
-			MSG("    parent = %d\n", tag->s.parent);
-			MSG("    data_len = %d\n", tag->s.data_len);
-		}
-		else {
-			MSG("  tag is GOOD but NOT DIRTY !!!???\n");
-		}
-	}
-	else if (TAG_IS_SEALED(tag)) {
-		MSG(" tag is INVALID\n");
-	}
-}
-
-static void do_dump_device(uffs_Device *dev)
-{
-	URET ret;
-	int block, page;
-	uffs_Tags tag;
-	uffs_Buf *buf;
-
-	buf = uffs_BufClone(dev, NULL);
-	if (buf == NULL) {
-		MSGLN("Can't clone buf");
-		return;
-	}
-
-	for (block = dev->par.start; block <= dev->par.end; block++) {
-		MSG("---- block %d ----\n", block);
-		for (page = 0; page < dev->attr->pages_per_block; page++) {
-			MSG("  == page %d ==\n", page);
-			ret = uffs_FlashReadPage(dev, block, page, buf, U_FALSE);
-			if (UFFS_FLASH_HAVE_ERR(ret)) {
-				MSG(" !!! Read page failed, ret = %d !!!\n", ret);
-			}
-			else {
-				do_dump_page(dev, buf);
-				if (buf->header[0] != 0xFF) {
-					ret = uffs_FlashReadPageTag(dev, block, page, &tag);
-					if (UFFS_FLASH_HAVE_ERR(ret)) {
-						MSG(" !!! Read TAG failed, ret = %d !!!\n", ret);
-					}
-					else {
-						do_dump_tag(dev, &tag);
-					}
-				}
-			}
-		}
-	}
-	uffs_BufFreeClone(dev, buf);
-}
-
-static int cmd_dump(int argc, char *argv[])
-{
-	const char *mount = "/";
-	uffs_Device *dev;
-
-	if (argc > 1) {
-		mount = argv[1];
-	}
-
-	MSGLN("Dumping %s ... ", mount);
-
-	dev = uffs_GetDeviceFromMountPoint(mount);
-	if (dev == NULL) {
-		MSGLN("Can't get device from mount point.");
-	}
-	else {
-		do_dump_device(dev);
-		uffs_PutDevice(dev);
-	}
-
-	return 0;
-}
-
-static int cmd_apisrv(int argc, char *argv[])
-{
-	return api_server_start();
-}
-
-static const struct cli_command test_cmds[] = 
-{
-    { cmd_t1,					"t1",			"<name>",			"test 1" },
-    { cmd_t2,					"t2",			NULL,				"test 2" },
-    { cmd_t3,					"t3",			"<name> [<noecc>]",	"test 3" },
-    { cmd_t4,					"t4",			NULL,				"test 4" },
-    { cmd_t5,					"t5",			"<name>",			"test 5" },
-    { cmd_TestPageReadWrite,	"t_pgrw",		NULL,				"test page read/write" },
-    { cmd_TestFormat,			"t_format",		NULL,				"test format file system" },
-	{ cmd_TestPopulateFiles,	"t_pfs",		"[<start> [<n>]]",	"test populate <n> files under <start>" },
-	{ cmd_VerifyFile,			"t_vf",			"<file> [<noecc>]", "verify file" },
-
-	{ cmd_topen,				"t_open",		"<oflg> <file>",	"open file, fd save to $1", },
-	{ cmd_tread,				"t_read",		"<fd> <txt>",		"read <fd> and check against <txt>", },
-	{ cmd_tcheck_seq,			"t_check_seq",	"<fd> <size>",		"read seq file <fd> and check", },
-	{ cmd_twrite,				"t_write",		"<fd> <txt> [...]",	"write <fd>", },
-	{ cmd_twrite_seq,			"t_write_seq",	"<fd> <size>",	"write seq file <fd>", },
-	{ cmd_tseek,				"t_seek",		"<fd> <offset> [<origin>]",	"seek <fd> file pointer to <offset> from <origin>", },
-	{ cmd_tclose,				"t_close",		"<fd>",				"close <fd>", },
-	{ cmd_dump,					"dump",			"<mount>",			"dump <mount>", },
-
-	{ cmd_apisrv,				"apisrv",		NULL,				"start API test server", },
-
-    { NULL, NULL, NULL, NULL }
-};
-
-static struct cli_commandset test_cmdset = {
-	test_cmds,
-};
-
-struct cli_commandset * get_test_cmds()
-{
-	return &test_cmdset;
-};
-
-
-
diff --git a/components/dfs/filesystems/uffs/src/emu/uffs_fileem.c b/components/dfs/filesystems/uffs/src/emu/uffs_fileem.c
deleted file mode 100644
index 1f66cdf846..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/uffs_fileem.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fileem.c
- * \brief emulate uffs file system
- * \author Ricky Zheng, created 9th May, 2005
- */
-  
-
-#include <sys/types.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_device.h"
-#include "uffs_fileem.h"
-
-#define PFX "femu: "
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-
-static struct uffs_StorageAttrSt g_femu_storage = {0};
-
-static struct uffs_FileEmuSt g_femu_private = {0};
-
-
-struct uffs_StorageAttrSt * femu_GetStorage()
-{
-	return &g_femu_storage;
-}
-
-struct uffs_FileEmuSt *femu_GetPrivate()
-{
-	return &g_femu_private;
-}
-
-URET femu_InitDevice(uffs_Device *dev)
-{
-	uffs_FileEmu *emu = femu_GetPrivate();
-
-	// setup device storage attr and private data structure.
-	// all femu partition share one storage attribute
-
-	dev->attr = femu_GetStorage();
-	dev->attr->_private = (void *) emu;
-
-	// setup flash driver operations, according to the ecc option.
-	switch(dev->attr->ecc_opt) {
-		case UFFS_ECC_NONE:
-		case UFFS_ECC_SOFT:
-			dev->ops = &g_femu_ops_ecc_soft;
-			break;
-		case UFFS_ECC_HW:
-			dev->ops = &g_femu_ops_ecc_hw;
-			break;
-		case UFFS_ECC_HW_AUTO:
-			dev->ops = &g_femu_ops_ecc_hw_auto;
-			break;
-		default:
-			break;
-	}
-
-#ifdef UFFS_FEMU_ENABLE_INJECTION
-	// setup wrap functions, for inject ECC errors, etc.
-	// check wrap_inited so that multiple devices can share the same driver
-	if (!emu->wrap_inited) {
-		femu_setup_wrapper_functions(dev);
-		emu->wrap_inited = U_TRUE;
-	}
-#endif
-
-	return U_SUCC;
-}
-
-/* Nothing to do here */
-URET femu_ReleaseDevice(uffs_Device *dev)
-{
-	return U_SUCC;
-}
-
-
-/////////////////////////////////////////////////////////////////////////////////
diff --git a/components/dfs/filesystems/uffs/src/emu/uffs_fileem.h b/components/dfs/filesystems/uffs/src/emu/uffs_fileem.h
deleted file mode 100644
index 8be7f3e838..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/uffs_fileem.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_fileem.h
- * \brief Emulate NAND flash with host file.
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_FILEEM_H_
-#define _UFFS_FILEEM_H_
-
-#include "uffs/uffs_device.h"
-
-#define UFFS_FEMU_FILE_NAME		"uffsemfile.bin"
-
-#define UFFS_FEMU_MAX_BLOCKS	(1024 * 16)		// maximum 16K blocks
-
-#define UFFS_FEMU_ENABLE_INJECTION		// enable bad block & ecc error injection
-
-extern struct uffs_FlashOpsSt g_femu_ops_ecc_soft;		// for software ECC or no ECC.
-extern struct uffs_FlashOpsSt g_femu_ops_ecc_hw;		// for hardware ECC
-extern struct uffs_FlashOpsSt g_femu_ops_ecc_hw_auto;	// for auto hardware ECC
-
-#define PAGE_DATA_WRITE_COUNT_LIMIT		1
-#define PAGE_SPARE_WRITE_COUNT_LIMIT	1
-
-typedef struct uffs_FileEmuSt {
-	int initCount;
-	FILE *fp;
-	FILE *dump_fp;
-	u8 *em_monitor_page;		// page write monitor
-	u8 * em_monitor_spare;		// spare write monitor
-	u32 *em_monitor_block;		// block erease monitor
-	const char *emu_filename;
-#ifdef UFFS_FEMU_ENABLE_INJECTION
-	struct uffs_FlashOpsSt ops_orig;
-	UBOOL wrap_inited;
-#endif
-} uffs_FileEmu;
-
-/* file emulator device init/release entry */
-URET femu_InitDevice(uffs_Device *dev);
-URET femu_ReleaseDevice(uffs_Device *dev);
-
-struct uffs_StorageAttrSt * femu_GetStorage(void);
-struct uffs_FileEmuSt * femu_GetPrivate(void);
-
-#ifdef UFFS_FEMU_ENABLE_INJECTION
-void femu_setup_wrapper_functions(uffs_Device *dev);
-#endif
-
-/* internal used functions, shared by all ecc option implementations */
-int femu_InitFlash(uffs_Device *dev);
-int femu_ReleaseFlash(uffs_Device *dev);
-int femu_EraseBlock(uffs_Device *dev, u32 blockNumber);
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_hw.c b/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_hw.c
deleted file mode 100644
index c7781ebe66..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_hw.c
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2010 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fileem_ecc_hw.c
- * \brief emulate uffs file system for hardware ECC.
- *
- *	 In this emulator, we call 'uffs_FlashMakeSpare()' to do the layout job
- *	 and call 'uffs_EccMake()' to calculate ECC.
- *
- * \author Ricky Zheng @ Oct, 2010
- */
-
-#include <sys/types.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_device.h"
-#include "uffs_fileem.h"
-#include "uffs/uffs_ecc.h"
-
-#define PFX "femu: "
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-static int femu_hw_WritePageWithLayout(uffs_Device *dev, u32 block, u32 page,
-							const u8 *data, int data_len, const u8 *ecc, const uffs_TagStore *ts)
-{
-	int written;
-	int abs_page;
-	int full_page_size;
-	uffs_FileEmu *emu;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	u8 spare[UFFS_MAX_SPARE_SIZE];
-	u8 ecc_buf[UFFS_MAX_ECC_SIZE];
-	int spare_len;
-
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	if (!emu || !(emu->fp)) {
-		goto err;
-	}
-
-	abs_page = attr->pages_per_block * block + page;
-	full_page_size = attr->page_data_size + attr->spare_size;
-
-	if (data && data_len > 0) {
-		if (data_len > attr->page_data_size)
-			goto err;
-
-		emu->em_monitor_page[abs_page]++;
-		if (emu->em_monitor_page[abs_page] > PAGE_DATA_WRITE_COUNT_LIMIT) {
-			MSG("Warrning: block %d page %d exceed it's maximum write time!", block, page);
-			goto err;
-		}
-		
-		fseek(emu->fp, abs_page * full_page_size, SEEK_SET);
-
-		written = fwrite(data, 1, data_len, emu->fp);
-		
-		if (written != data_len) {
-			MSG("write page I/O error ?");
-			goto err;
-		}
-
-		dev->st.page_write_count++;
-		dev->st.io_write += written;
-
-	}
-
-	if (ts) {
-
-		emu->em_monitor_spare[abs_page]++;
-		if (emu->em_monitor_spare[abs_page] > PAGE_SPARE_WRITE_COUNT_LIMIT) {
-			MSG("Warrning: block %d page %d (spare) exceed it's maximum write time!", block, page);
-			goto err;
-		}
-
-		if (!uffs_Assert(data != NULL, "BUG: Write spare without data ?"))
-			goto err;
-
-		uffs_EccMake(data, data_len, ecc_buf);
-		uffs_FlashMakeSpare(dev, ts, ecc_buf, spare);
-		spare_len = dev->mem.spare_data_size;
-		
-		fseek(emu->fp, abs_page * full_page_size + attr->page_data_size, SEEK_SET);
-		written = fwrite(spare, 1, spare_len, emu->fp);
-		if (written != spare_len) {
-			MSG("write spare I/O error ?");
-			goto err;
-		}
-
-		dev->st.spare_write_count++;
-		dev->st.io_write += written;
-	}
-
-	if (data == NULL && ts == NULL) {
-		// mark bad block
-		fseek(emu->fp, abs_page * full_page_size + attr->page_data_size + attr->block_status_offs, SEEK_SET);
-		written = fwrite("\0", 1, 1, emu->fp);
-		if (written != 1) {
-			MSG("write bad block mark I/O error ?");
-			goto err;
-		}
-		dev->st.io_write++;
-	}
-
-	fflush(emu->fp);
-	return UFFS_FLASH_NO_ERR;
-err:
-	fflush(emu->fp);
-	return UFFS_FLASH_IO_ERR;
-}
-
-
-static URET femu_hw_ReadPageWithLayout(uffs_Device *dev, u32 block, u32 page, u8* data, int data_len, u8 *ecc,
-									uffs_TagStore *ts, u8 *ecc_store)
-{
-	int nread;
-	uffs_FileEmu *emu;
-	int abs_page;
-	int full_page_size;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	unsigned char status;
-	u8 spare[UFFS_MAX_SPARE_SIZE];
-	int spare_len;
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	if (!emu || !(emu->fp)) {
-		goto err;
-	}
-
-	abs_page = attr->pages_per_block * block + page;
-	full_page_size = attr->page_data_size + attr->spare_size;
-
-	if (data && data_len > 0) {
-		if (data_len > attr->page_data_size)
-			goto err;
-
-		fseek(emu->fp, abs_page * full_page_size, SEEK_SET);
-		nread = fread(data, 1, data_len, emu->fp);
-
-		if (nread != data_len) {
-			MSG("read page I/O error ?");
-			goto err;
-		}
-		dev->st.io_read += nread;
-		dev->st.page_read_count++;
-
-		if (ecc) {
-			// calculate ECC for data
-			uffs_EccMake(data, data_len, ecc);
-		}
-	}
-
-	if (ts) {
-
-		spare_len = dev->mem.spare_data_size;
-		fseek(emu->fp, abs_page * full_page_size + attr->page_data_size, SEEK_SET);
-		nread = fread(spare, 1, spare_len, emu->fp);
-
-		if (nread != spare_len) {
-			MSG("read page spare I/O error ?");
-			goto err;
-		}
-
-		// unload ts and ecc from spare
-		uffs_FlashUnloadSpare(dev, spare, ts, ecc_store);
-
-		dev->st.io_read += nread;
-		dev->st.spare_read_count++;
-	}
-
-	if (data == NULL && ts == NULL) {
-		// read bad block mark
-		fseek(emu->fp, abs_page * full_page_size + attr->page_data_size + attr->block_status_offs, SEEK_SET);
-		nread = fread(&status, 1, 1, emu->fp);
-
-		if (nread != 1) {
-			MSG("read badblock mark I/O error ?");
-			goto err;
-		}
-		dev->st.io_read++;
-
-		return status == 0xFF ? UFFS_FLASH_NO_ERR : UFFS_FLASH_BAD_BLK;
-	}
-
-	return UFFS_FLASH_NO_ERR;
-err:
-	return UFFS_FLASH_IO_ERR;
-}
-
-
-uffs_FlashOps g_femu_ops_ecc_hw = {
-	femu_InitFlash,				// InitFlash()
-	femu_ReleaseFlash,			// ReleaseFlash()
-	NULL,						// ReadPage()
-	femu_hw_ReadPageWithLayout,	// ReadPageWithLayout()
-	NULL,						// WritePage()
-	femu_hw_WritePageWithLayout,// WritePageWithLayout()
-	NULL,						// IsBadBlock(), let UFFS take care of it.
-	NULL,						// MarkBadBlock(), let UFFS take care of it.
-	femu_EraseBlock,			// EraseBlock()
-};
diff --git a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_hw_auto.c b/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_hw_auto.c
deleted file mode 100644
index 31fbb28c95..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_hw_auto.c
+++ /dev/null
@@ -1,356 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2010 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fileem_ecc_hw_auto.c
- *
- * \brief Emulate uffs file system for auto hardware ECC or RS error collection.
- *
- *    This emulator emulate LPC32x0 MLC NAND controller which generate 10 bytes
- *    Reed-Solomon error correction code (RS-ECC) for every 518 bytes data.
- *
- *    For small page MLC have 16 bytes spare area leves only 6 bytes for 'meta-data',
- *    no enough room for UFFS's 8 bytes tag and bad block mark. For this reason,
- *    we adjust page data/spare boundary to 508/20.
- *
- *    This emulator does not calculate real RS-ECC code, instead, we use software ECC
- *    to calculate 6 bytes ECC code, so this solution does not have the same error
- *    correcting cabability of RS-ECC.
- *
- *    Note: the MLC controller strictly require sequencial access to serial data buffer.
- *
- * \author Ricky Zheng @ Oct, 2010
- */
-
-#include <sys/types.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_ecc.h"
-#include "uffs_fileem.h"
-
-#define PFX "femu: "
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-#define RS_ECC_SIZE			10
-#define PAGE_DATA_SIZE		508
-#define PAGE_SPARE_SIZE		20
-#define PAGE_FULL_SIZE		(PAGE_DATA_SIZE + PAGE_SPARE_SIZE)
-static u8 g_sdata_buf[PAGE_FULL_SIZE];	// emulating LPC32x0's 528-bytes serial data buffer
-
-static int g_sdata_buf_pointer = 0;
-
-static void start_sdata_access()
-{
-	g_sdata_buf_pointer = 0;
-}
-
-static void feed_sdata(const u8 *data, int len)
-{
-	if (!uffs_Assert(g_sdata_buf_pointer + len <= sizeof(g_sdata_buf), "BUG: Serial Data Buffer overflow !!"))
-		return;
-
-	if (data)
-		memcpy(g_sdata_buf + g_sdata_buf_pointer, data, len);
-	g_sdata_buf_pointer += len;
-}
-
-static void feed_sdata_constant(u8 val, int num)
-{
-	if (!uffs_Assert(g_sdata_buf_pointer + num <= sizeof(g_sdata_buf), "BUG: Serial Data Buffer overflow !!"))
-		return;
-
-	memset(g_sdata_buf + g_sdata_buf_pointer, val, num);
-	g_sdata_buf_pointer += num;
-}
-
-static void drain_sdata(u8 *data, int len)
-{
-	if (!uffs_Assert( (int)sizeof(g_sdata_buf) - g_sdata_buf_pointer >= len, "BUG: Serial Data Buffer overdrain !!"))
-		return;
-
-	if (data)
-		memcpy(data, g_sdata_buf + g_sdata_buf_pointer, len);
-	g_sdata_buf_pointer += len;
-}
-
-static int load_sdata(uffs_Device *dev, int block, int page)
-{
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-	int abs_page;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	int nread;
-	int ret;
-	u8 ecc_buf[RS_ECC_SIZE];
-	u8 *ecc_store;
-
-	abs_page = attr->pages_per_block * block + page;
-
-	fseek(emu->fp, abs_page * PAGE_FULL_SIZE, SEEK_SET);
-	nread = fread(g_sdata_buf, 1, PAGE_FULL_SIZE, emu->fp);
-	g_sdata_buf_pointer = 0;
-
-	ret = ((nread == PAGE_FULL_SIZE) ? UFFS_FLASH_NO_ERR : UFFS_FLASH_IO_ERR);
-
-	if (ret == UFFS_FLASH_NO_ERR) {
-
-		// Perform ECC check & correction
-		// In the real world, this is done by MLC controller hardware
-		memset(ecc_buf, 0xFF, RS_ECC_SIZE);
-		uffs_EccMake(g_sdata_buf, attr->page_data_size, ecc_buf);
-
-		ecc_store = g_sdata_buf + PAGE_FULL_SIZE - RS_ECC_SIZE;
-
-		ret = uffs_EccCorrect(g_sdata_buf, attr->page_data_size, ecc_store, ecc_buf);
-
-		ret = (ret < 0 ? UFFS_FLASH_ECC_FAIL :
-				(ret > 0 ? UFFS_FLASH_ECC_OK : UFFS_FLASH_NO_ERR));
-		
-	}
-
-	return ret;
-}
-
-static int program_sdata(uffs_Device *dev, int block, int page)
-{
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-	int abs_page;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	u8 ecc_buf[RS_ECC_SIZE];
-	int writtern = 0;
-
-	// In the real world, MLC controller will generate RS-ECC code in serial data buffer
-	// and might start auto programing NAND flash. Here, we use software ECC to emulate RS-ECC.
-	memset(ecc_buf, 0xFF, sizeof(ecc_buf));
-	uffs_EccMake(g_sdata_buf, attr->page_data_size, ecc_buf);
-	feed_sdata(ecc_buf, RS_ECC_SIZE);
-
-	if (!uffs_Assert(g_sdata_buf_pointer == PAGE_FULL_SIZE, "Serial Data Buffer is not fully filled !!"))
-		goto ext;
-
-	abs_page = attr->pages_per_block * block + page;
-
-	fseek(emu->fp, abs_page * PAGE_FULL_SIZE, SEEK_SET);
-	writtern = fwrite(g_sdata_buf, 1, PAGE_FULL_SIZE, emu->fp);
-ext:
-	return (writtern == PAGE_FULL_SIZE) ? UFFS_FLASH_NO_ERR : UFFS_FLASH_IO_ERR;
-}
-
-
-static int femu_hw_auto_InitFlash(uffs_Device *dev)
-{
-	struct uffs_StorageAttrSt *attr = dev->attr;
-
-	// now this is a good chance to adjust page data/spare boundary
-	if (attr->page_data_size + attr->spare_size != PAGE_FULL_SIZE) {
-		MSGLN("This emulator emulates only for page size %d bytes !", PAGE_FULL_SIZE);
-		return -1;
-	}
-	if (attr->spare_size < PAGE_SPARE_SIZE) {
-		attr->page_data_size -= (PAGE_SPARE_SIZE - attr->spare_size);
-		attr->spare_size = PAGE_SPARE_SIZE;
-		MSGLN("Adjust page data/spare boundary to %d/%d", attr->page_data_size, attr->spare_size);
-	}
-
-	// and fix ECC size
-	attr->ecc_size = RS_ECC_SIZE;
-	MSGLN("Adjust ECC size to %d bytes", attr->ecc_size);
-	
-	return femu_InitFlash(dev);
-}
-
-
-static int femu_hw_auto_WritePageWithLayout(uffs_Device *dev, u32 block, u32 page,
-							const u8 *data, int data_len, const u8 *ecc, const uffs_TagStore *ts)
-{
-	int abs_page;
-	uffs_FileEmu *emu;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	u8 spare[PAGE_SPARE_SIZE];
-	int ret = UFFS_FLASH_IO_ERR;
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	if (!emu || !(emu->fp)) {
-		goto err;
-	}
-
-	abs_page = attr->pages_per_block * block + page;
-
-	start_sdata_access();
-
-	dev->st.page_write_count++;
-	dev->st.spare_write_count++;
-	dev->st.io_write += PAGE_FULL_SIZE;
-
-	if (data || ts) {
-		// normal page write
-		if (data && data_len > 0) {
-			if (data_len > attr->page_data_size)
-				goto err;
-
-			emu->em_monitor_page[abs_page]++;
-			if (emu->em_monitor_page[abs_page] > PAGE_DATA_WRITE_COUNT_LIMIT) {
-				MSGLN("Warrning: block %d page %d exceed it's maximum write time!", block, page);
-				goto err;
-			}
-			
-			// Copy data to serial data buffer
-			feed_sdata(data, data_len);
-
-			// Pad the rest data as 0xFF
-			feed_sdata_constant(0xFF, attr->page_data_size - data_len);
-
-		}
-		else {
-			// We still need to feed data to serial data buffer to make MLC controller happy
-			// The current UFFS won't write ts only, so we'll never run to here.
-			feed_sdata_constant(0xFF, attr->page_data_size);
-		}
-
-		if (ts) {
-
-			emu->em_monitor_spare[abs_page]++;
-			if (emu->em_monitor_spare[abs_page] > PAGE_SPARE_WRITE_COUNT_LIMIT) {
-				MSGLN("Warrning: block %d page %d (spare) exceed it's maximum write time!", block, page);
-				goto err;
-			}
-
-			memset(spare, 0xFF, sizeof(spare));
-			uffs_FlashMakeSpare(dev, ts, NULL, spare);	// do not pack ECC, as MLC controller will
-														// automatically write RS-ECC to the latest 10 bytes.
-
-			// feed spare data to serial data buffer
-			feed_sdata(spare, PAGE_SPARE_SIZE - RS_ECC_SIZE);			
-		}
-	}
-	else {
-		// mark bad block
-
-		// feed data to serial data buffer to make MLC controller happy
-		feed_sdata_constant(0xFF, attr->page_data_size);
-
-		memset(spare, 0xFF, sizeof(spare));
-		spare[attr->block_status_offs] = 0;
-
-		// feed spare data to serial data buffer
-		feed_sdata(spare, PAGE_SPARE_SIZE - RS_ECC_SIZE);
-
-		dev->st.io_write++;
-	}
-
-	// now, program serial data buffer to NAND flash
-	ret = program_sdata(dev, block, page);
-
-	fflush(emu->fp);
-	return ret;
-err:
-	fflush(emu->fp);
-	return ret;
-}
-
-
-static URET femu_hw_auto_ReadPageWithLayout(uffs_Device *dev, u32 block, u32 page, u8* data, int data_len, u8 *ecc,
-									uffs_TagStore *ts, u8 *ecc_store)
-{
-	uffs_FileEmu *emu;
-	int abs_page;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	unsigned char status;
-	u8 spare[PAGE_SPARE_SIZE];
-	int ret = UFFS_FLASH_IO_ERR;
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	if (!emu || !(emu->fp)) {
-		goto ext;
-	}
-
-	abs_page = attr->pages_per_block * block + page;
-
-	// now load full page to serial data buffer
-	ret = load_sdata(dev, block, page);
-	if (ret != UFFS_FLASH_NO_ERR)
-		goto ext;
-
-	start_sdata_access();
-
-	dev->st.io_read += PAGE_FULL_SIZE;
-	dev->st.page_read_count++;
-	dev->st.spare_read_count++;
-
-	if (data || ts) {
-
-		if (data && data_len > 0) {
-			if (data_len > attr->page_data_size)
-				goto ext;
-
-			drain_sdata(data, data_len);
-		}
-
-		if (ts) {
-			if (g_sdata_buf_pointer < attr->page_data_size)
-				drain_sdata(NULL, attr->page_data_size - g_sdata_buf_pointer);
-
-			drain_sdata(spare, PAGE_SPARE_SIZE - RS_ECC_SIZE);
-
-			// unload ts from spare
-			uffs_FlashUnloadSpare(dev, spare, ts, NULL);
-		}
-	}
-	else {
-		// read bad block mark
-		drain_sdata(NULL, attr->page_data_size + attr->block_status_offs - 1);
-		drain_sdata(&status, 1);
-
-		ret = (status == 0xFF ? UFFS_FLASH_NO_ERR : UFFS_FLASH_BAD_BLK);
-	}
-
-ext:
-	return ret;
-}
-
-
-uffs_FlashOps g_femu_ops_ecc_hw_auto = {
-	femu_hw_auto_InitFlash,			// InitFlash()
-	femu_ReleaseFlash,			// ReleaseFlash()
-	NULL,					// ReadPage()
-	femu_hw_auto_ReadPageWithLayout,	// ReadPageWithLayout()
-	NULL,					// WritePage()
-	femu_hw_auto_WritePageWithLayout,	// WritePageWithLayout()
-	NULL,					// IsBadBlock(), let UFFS take care of it.
-	NULL,					// MarkBadBlock(), let UFFS take care of it.
-	femu_EraseBlock,			// EraseBlock()
-};
diff --git a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_soft.c b/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_soft.c
deleted file mode 100644
index 0a24c1cf3b..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_ecc_soft.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2010 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fileem_ecc_soft.c
- * \brief emulate uffs file system for software ECC
- * \author Ricky Zheng @ Oct, 2010
- */
-
-#include <sys/types.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_flash.h"
-#include "uffs_fileem.h"
-
-#define PFX "femu: "
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-static int femu_WritePage(uffs_Device *dev, u32 block, u32 page_num,
-							const u8 *data, int data_len, const u8 *spare, int spare_len)
-{
-	int written;
-	int abs_page;
-	int full_page_size;
-	uffs_FileEmu *emu;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	if (!emu || !(emu->fp)) {
-		goto err;
-	}
-
-	abs_page = attr->pages_per_block * block + page_num;
-	full_page_size = attr->page_data_size + attr->spare_size;
-
-	if (data && data_len > 0) {
-		if (data_len > attr->page_data_size)
-			goto err;
-
-		emu->em_monitor_page[abs_page]++;
-		if (emu->em_monitor_page[abs_page] > PAGE_DATA_WRITE_COUNT_LIMIT) {
-			MSGLN("Warrning: block %d page %d exceed it's maximum write time!", block, page_num);
-			goto err;
-		}
-		
-		fseek(emu->fp, abs_page * full_page_size, SEEK_SET);
-
-		written = fwrite(data, 1, data_len, emu->fp);
-		
-		if (written != data_len) {
-			MSGLN("write page I/O error ?");
-			goto err;
-		}
-
-		dev->st.page_write_count++;
-		dev->st.io_write += written;
-	}
-
-	if (spare && spare_len > 0) {
-		if (spare_len > attr->spare_size)
-			goto err;
-
-		emu->em_monitor_spare[abs_page]++;
-		if (emu->em_monitor_spare[abs_page] > PAGE_SPARE_WRITE_COUNT_LIMIT) {
-			MSGLN("Warrning: block %d page %d (spare) exceed it's maximum write time!", block, page_num);
-			goto err;
-		}
-		
-		fseek(emu->fp, abs_page * full_page_size + attr->page_data_size, SEEK_SET);
-		written = fwrite(spare, 1, spare_len, emu->fp);
-		if (written != spare_len) {
-			MSGLN("write spare I/O error ?");
-			goto err;
-		}
-
-		dev->st.spare_write_count++;
-		dev->st.io_write += written;
-	}
-
-	if (data == NULL && spare == NULL) {
-		// mark bad block
-		fseek(emu->fp, abs_page * full_page_size + attr->page_data_size + attr->block_status_offs, SEEK_SET);
-		written = fwrite("\0", 1, 1, emu->fp);
-		if (written != 1) {
-			MSGLN("write bad block mark I/O error ?");
-			goto err;
-		}
-		dev->st.io_write++;
-	}
-
-	fflush(emu->fp);
-	return UFFS_FLASH_NO_ERR;
-err:
-	fflush(emu->fp);
-	return UFFS_FLASH_IO_ERR;
-}
-
-
-static URET femu_ReadPage(uffs_Device *dev, u32 block, u32 page_num, u8 *data, int data_len, u8 *ecc,
-							u8 *spare, int spare_len)
-{
-	int nread;
-	uffs_FileEmu *emu;
-	int abs_page;
-	int full_page_size;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	unsigned char status;
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	if (!emu || !(emu->fp)) {
-		goto err;
-	}
-
-	abs_page = attr->pages_per_block * block + page_num;
-	full_page_size = attr->page_data_size + attr->spare_size;
-
-	if (data && data_len > 0) {
-		if (data_len > attr->page_data_size)
-			goto err;
-
-		fseek(emu->fp, abs_page * full_page_size, SEEK_SET);
-		nread = fread(data, 1, data_len, emu->fp);
-
-		if (nread != data_len) {
-			MSGLN("read page I/O error ?");
-			goto err;
-		}
-		dev->st.io_read += nread;
-		dev->st.page_read_count++;
-	}
-
-	if (spare && spare_len > 0) {
-		if (spare_len > attr->spare_size)
-			goto err;
-
-		fseek(emu->fp, abs_page * full_page_size + attr->page_data_size, SEEK_SET);
-		nread = fread(spare, 1, spare_len, emu->fp);
-
-		if (nread != spare_len) {
-			MSGLN("read page spare I/O error ?");
-			goto err;
-		}
-		dev->st.io_read += nread;
-		dev->st.spare_read_count++;
-	}
-
-	if (data == NULL && spare == NULL) {
-		// read bad block mark
-		fseek(emu->fp, abs_page * full_page_size + attr->page_data_size + attr->block_status_offs, SEEK_SET);
-		nread = fread(&status, 1, 1, emu->fp);
-
-		if (nread != 1) {
-			MSGLN("read badblock mark I/O error ?");
-			goto err;
-		}
-		dev->st.io_read++;
-
-		return status == 0xFF ? UFFS_FLASH_NO_ERR : UFFS_FLASH_BAD_BLK;
-	}
-
-	return UFFS_FLASH_NO_ERR;
-err:
-	return UFFS_FLASH_IO_ERR;
-}
-
-
-uffs_FlashOps g_femu_ops_ecc_soft = {
-	femu_InitFlash,		// InitFlash()
-	femu_ReleaseFlash,	// ReleaseFlash()
-	femu_ReadPage,		// ReadPage()
-	NULL,		        // ReadPageWithLayout
-	femu_WritePage,		// WritePage()
-	NULL,			// WritePageWithLayout
-	NULL,			// IsBadBlock(), let UFFS take care of it.
-	NULL,			// MarkBadBlock(), let UFFS take care of it.
-	femu_EraseBlock,	// EraseBlock()
-};
diff --git a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_share.c b/components/dfs/filesystems/uffs/src/emu/uffs_fileem_share.c
deleted file mode 100644
index 6bd759bb82..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_share.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fileem_share.c
- * \brief emulate uffs file system, shared functions
- * \author Ricky Zheng, created Nov, 2010
- */
-  
-
-#include <sys/types.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_device.h"
-#include "uffs_fileem.h"
-
-#define PFX "femu: "
-
-/****************************************************************/
-/*           Shared flash driver functions:                     */
-/*                                                              */
-/*   femu_InitFlash(), femu_ReleaseFlash(), femu_EraseBlock()   */
-/*                                                              */
-/****************************************************************/
-
-static u8 g_page_buf[UFFS_MAX_PAGE_SIZE + UFFS_MAX_SPARE_SIZE];
-
-/*
- * Create emulator disk, initialise monitors, inject manufacture bad blocks, etc.
- *
- */
-int femu_InitFlash(uffs_Device *dev)
-{
-	int i;
-	int fSize;
-	int written;
-	u8 * p = g_page_buf;
-	uffs_FileEmu *emu;
-
-	struct uffs_StorageAttrSt *attr = dev->attr;
-
-	int full_page_size = attr->page_data_size + attr->spare_size;
-	int total_pages = attr->total_blocks * attr->pages_per_block;
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	if (emu->initCount > 0) {
-		emu->initCount++;
-		return 0;
-	}
-
-	if (emu->emu_filename == NULL)
-		emu->emu_filename = UFFS_FEMU_FILE_NAME;
-
-	uffs_Perror(UFFS_MSG_NORMAL,  "femu device init.");
-
-	emu->em_monitor_page = (u8 *) malloc(sizeof(emu->em_monitor_page[0]) * total_pages);
-	if (!emu->em_monitor_page)
-		return -1;
-	emu->em_monitor_spare = (u8 *) malloc(sizeof(emu->em_monitor_spare[0]) * total_pages);
-	if (!emu->em_monitor_spare)
-		return -1;
-
-	emu->em_monitor_block = (u32 *) malloc(sizeof(emu->em_monitor_block[0]) * attr->total_blocks);
-	if (!emu->em_monitor_block)
-		return -1;
-
-	//clear monitor
-	memset(emu->em_monitor_page, 0, sizeof(emu->em_monitor_page[0]) * total_pages);
-	memset(emu->em_monitor_spare, 0, sizeof(emu->em_monitor_spare[0]) * total_pages);
-	memset(emu->em_monitor_block, 0, sizeof(emu->em_monitor_block[0]) * attr->total_blocks);
-
-	emu->fp = fopen(emu->emu_filename, "rb");
-	if (emu->fp == NULL) {
-		emu->fp = fopen(emu->emu_filename, "ab+");
-		if (emu->fp == NULL) {
-			printf(PFX"Failed to create uffs emulation file.");
-			return -1;
-		}
-
-		fseek(emu->fp, 0, SEEK_END);
-		fSize = ftell(emu->fp);
-		
-		if (fSize < total_pages * full_page_size)	{
-			printf("Creating uffs emulation file\n");
-			fseek(emu->fp, 0, SEEK_SET);
-			memset(p, 0xff, full_page_size);
-			for (i = 0; i < total_pages; i++)	{
-				written = fwrite(p, 1, full_page_size, emu->fp);
-				if (written != full_page_size)	{
-					printf("Write failed\n");
-					fclose(emu->fp);
-					emu->fp = NULL;
-					return -1;
-				}
-			}		
-		}
-	}
-
-	fflush(emu->fp);	
-	fclose(emu->fp);
-
-	emu->fp = fopen(emu->emu_filename, "rb+");
-	if (emu->fp == NULL) {
-		printf(PFX"Can't open emulation file.\n");
-		return -1;
-	}
-
-	emu->initCount++;
-
-	return 0;
-}
-
-/*
- * Release resources
- */
-int femu_ReleaseFlash(uffs_Device *dev)
-{
-	uffs_FileEmu *emu;
-
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	emu->initCount--;
-
-	if (emu->initCount == 0) {
-
-		uffs_Perror(UFFS_MSG_NORMAL,  "femu device release.");
-
-		if (emu->fp) {
-			fclose(emu->fp);
-			emu->fp = NULL;
-		}
-
-		if (emu->em_monitor_page)
-			free(emu->em_monitor_page);
-		if (emu->em_monitor_spare) 
-			free(emu->em_monitor_spare);
-		if (emu->em_monitor_block)
-			free(emu->em_monitor_block);
-		emu->em_monitor_page = NULL;
-		emu->em_monitor_spare = NULL;
-		emu->em_monitor_block = NULL;
-	}
-
-	return 0;
-}
-
-int femu_EraseBlock(uffs_Device *dev, u32 blockNumber)
-{
-
-	int i;
-	u8 * pg = g_page_buf;
-	int pg_size, pgd_size, sp_size, blks, blk_pgs, blk_size;
-	uffs_FileEmu *emu;
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-	if (!emu || !(emu->fp))
-		goto err;
-
-	pg_size = dev->attr->page_data_size + dev->attr->spare_size;
-	pgd_size = dev->attr->page_data_size;
-	sp_size = dev->attr->spare_size;
-	blk_pgs = dev->attr->pages_per_block;
-	blks = dev->attr->total_blocks;
-	blk_size = dev->attr->page_data_size * dev->attr->pages_per_block;
-	
-	printf("femu: erase block %d\n", blockNumber);
-
-	if ((int)blockNumber >= blks) {
-		printf("Attempt to erase non-existant block %d\n",blockNumber);
-		goto err;
-	}
-	else {
-
-		//clear this block monitors
-		memset(emu->em_monitor_page + (blockNumber * blk_pgs), 
-			0, 
-			blk_pgs * sizeof(u8));
-		memset(emu->em_monitor_spare + (blockNumber * blk_pgs),
-			0,
-			blk_pgs * sizeof(u8));
-
-		emu->em_monitor_block[blockNumber]++;
-		
-		memset(pg, 0xff, (pgd_size + sp_size));
-		
-		fseek(emu->fp, blockNumber * blk_pgs * (pgd_size + sp_size), SEEK_SET);
-		
-		for (i = 0; i < blk_pgs; i++)	{
-			fwrite(pg, 1, (pgd_size + sp_size), emu->fp);
-		}
-
-		fflush(emu->fp);
-		dev->st.block_erase_count++;
-	}
-
-	return UFFS_FLASH_NO_ERR;
-err:
-	return UFFS_FLASH_IO_ERR;
-	
-}
-
diff --git a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_wrap.c b/components/dfs/filesystems/uffs/src/emu/uffs_fileem_wrap.c
deleted file mode 100644
index 9893aa2eda..0000000000
--- a/components/dfs/filesystems/uffs/src/emu/uffs_fileem_wrap.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fileem_wrap.c
- *
- * \brief file emulator wrapper functions for injecting bad blocks or ECC errors.
- *
- * \author Ricky Zheng, created Nov, 2010
- */
-
-#include <sys/types.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_device.h"
-#include "uffs_fileem.h"
-
-#define PFX "femu: "
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-// #define UFFS_FEMU_SHOW_FLASH_IO
-
-#ifdef UFFS_FEMU_ENABLE_INJECTION
-
-struct uffs_FileEmuBitFlip {
-	int block;
-	int page;
-	int offset;
-	u8 mask;
-};
-
-/* simulate bad blocks */
-#define FILEEMU_STOCK_BAD_BLOCKS	{5, 180}	// bad block come from manufacture
-#define FILEEMU_ERASE_BAD_BLOCKS	{100, 150}	// new bad block discovered when erasing
-
-/* simulating bit flip */
-#define FILEEMU_WRITE_BIT_FLIP \
-	{ \
-		{20, 2, 10, 1 << 4},	/* block 20, page 2, offset 10, bit 4 */	\
-		{24, 4, -3, 1 << 2},	/* block 24, page 4, spare offset 3, bit 2*/ \
-		{60, 1, 5, 1 << 3},		/* block 60, page 1, offset 5, bit 3 */ \
-		{66, 1, 15, 1 << 7},	/* block 66, page 1, offset 300, bit 7 */ \
-		{80, 2, 2, 1 << 1},		/* block 80, page 2, offset 2, bit 1 */ \
-		{88, 2, 100, 1 << 5},	/* block 88, page 2, offset 100, bit 5 */ \
-	}
-
-
-static int femu_InitFlash_wrap(uffs_Device *dev);
-
-static int femu_ReadPage_wrap(uffs_Device *dev, u32 block, u32 page, u8 *data, int data_len, u8 *ecc,
-							u8 *spare, int spare_len);
-static int femu_ReadPageWithLayout_wrap(uffs_Device *dev, u32 block, u32 page, u8* data, int data_len, u8 *ecc,
-									uffs_TagStore *ts, u8 *ecc_store);
-static int femu_WritePage_wrap(uffs_Device *dev, u32 block, u32 page,
-							const u8 *data, int data_len, const u8 *spare, int spare_len);
-static int femu_WritePageWithLayout_wrap(uffs_Device *dev, u32 block, u32 page, const u8* data, int data_len, const u8 *ecc,
-									const uffs_TagStore *ts);
-static int femu_EraseBlock_wrap(uffs_Device *dev, u32 blockNumber);
-
-
-/////////////////////////////////////////////////////////////////////////////////
-
-void femu_setup_wrapper_functions(uffs_Device *dev)
-{
-	uffs_FileEmu *emu;
-	emu = (uffs_FileEmu *)(dev->attr->_private);
-
-	// setup wrap functions, for inject ECC errors, etc.
-
-	memcpy(&emu->ops_orig, dev->ops, sizeof(struct uffs_FlashOpsSt));
-
-	if (dev->ops->InitFlash)
-		dev->ops->InitFlash = femu_InitFlash_wrap;
-	if (dev->ops->EraseBlock)
-		dev->ops->EraseBlock = femu_EraseBlock_wrap;
-	if (dev->ops->ReadPage)
-		dev->ops->ReadPage = femu_ReadPage_wrap;
-	if (dev->ops->ReadPageWithLayout)
-		dev->ops->ReadPageWithLayout = femu_ReadPageWithLayout_wrap;
-	if (dev->ops->WritePage)
-		dev->ops->WritePage = femu_WritePage_wrap;
-	if (dev->ops->WritePageWithLayout)
-		dev->ops->WritePageWithLayout = femu_WritePageWithLayout_wrap;
-}
-
-static int femu_InitFlash_wrap(uffs_Device *dev)
-{
-	int ret;
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-
-#ifdef FILEEMU_STOCK_BAD_BLOCKS
-	u32 bad_blocks[] = FILEEMU_STOCK_BAD_BLOCKS;
-	int j;
-	u8 x = 0;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	int full_page_size = attr->page_data_size + attr->spare_size;
-	int blk_size = full_page_size * attr->pages_per_block;
-#endif
-
-	if (emu->initCount == 0) {
-		ret = emu->ops_orig.InitFlash(dev);
-#ifdef FILEEMU_STOCK_BAD_BLOCKS
-		if (ret >= 0) {
-			for (j = 0; j < ARRAY_SIZE(bad_blocks); j++) {
-				if (bad_blocks[j] < dev->attr->total_blocks) {
-					printf(" --- manufacture bad block %d ---\n", bad_blocks[j]);
-					fseek(emu->fp, bad_blocks[j] * blk_size + attr->page_data_size + dev->attr->block_status_offs, SEEK_SET);
-					fwrite(&x, 1, 1, emu->fp);
-				}
-			}
-		}
-#endif
-	}
-	else {
-		ret = emu->ops_orig.InitFlash(dev);
-	}
-
-	return ret;
-}
-
-static int femu_ReadPage_wrap(uffs_Device *dev, u32 block, u32 page, u8 *data, int data_len, u8 *ecc,
-							u8 *spare, int spare_len)
-{
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-
-#ifdef UFFS_FEMU_SHOW_FLASH_IO
-	if (data || spare) {
-		MSG(PFX " Read block %d page %d", block, page);
-		if (data)
-			MSG(" DATA[%d]", data_len);
-		if (spare)
-			MSG(" SPARE[%d]", spare_len);
-		MSG(TENDSTR);
-	}
-#endif
-	return emu->ops_orig.ReadPage(dev, block, page, data, data_len, ecc, spare, spare_len);
-}
-
-static int femu_ReadPageWithLayout_wrap(uffs_Device *dev, u32 block, u32 page, u8* data, int data_len, u8 *ecc,
-									uffs_TagStore *ts, u8 *ecc_store)
-{
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-
-#ifdef UFFS_FEMU_SHOW_FLASH_IO
-	if (data || ts) {
-		MSG(PFX " Read block %d page %d", block, page);
-		if (data)
-			MSG(" DATA[%d]", data_len);
-		if (ts)
-			MSG(" TS");
-		MSG(TENDSTR);
-	}
-#endif
-	return emu->ops_orig.ReadPageWithLayout(dev, block, page, data, data_len, ecc, ts, ecc_store);
-}
-
-
-////////////////////// wraper functions ///////////////////////////
-
-static void InjectBitFlip(uffs_Device *dev, u32 block, u32 page)
-{
-#ifdef FILEEMU_WRITE_BIT_FLIP
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-	struct uffs_FileEmuBitFlip flips[] = FILEEMU_WRITE_BIT_FLIP;
-	struct uffs_FileEmuBitFlip *x;
-	u8 buf[UFFS_MAX_PAGE_SIZE + UFFS_MAX_SPARE_SIZE];
-	u8 *data = buf;
-	u8 *spare = buf + dev->attr->page_data_size;
-	int full_page_size = dev->attr->page_data_size + dev->attr->spare_size;
-	int blk_size = full_page_size * dev->attr->pages_per_block;
-	int page_offset = block * blk_size + full_page_size * page;
-
-	int i;
-	u8 *p;
-
-	fseek(emu->fp, page_offset, SEEK_SET);
-	fread(buf, 1, full_page_size, emu->fp);
-
-	p = NULL;
-	for (i = 0; i < ARRAY_SIZE(flips); i++) {
-		x = &flips[i];
-		if (x->block == block && x->page == page) {
-			if (x->offset >= 0) {
-				printf(" --- Inject data bit flip at block%d, page%d, offset%d, mask%d --- \n", block, page, x->offset, x->mask);
-				p = (u8 *)(data + x->offset);
-			}
-			else {
-				printf(" --- Inject spare bit flip at block%d, page%d, offset%d, mask%d --- \n", block, page, -x->offset, x->mask);
-				p = (u8 *)(spare - x->offset);
-			}
-			*p = (*p & ~x->mask) | (~(*p & x->mask) & x->mask);
-		}
-	}
-
-	if (p) {
-		fseek(emu->fp, page_offset, SEEK_SET);
-		fwrite(buf, 1, full_page_size, emu->fp);
-	}
-#endif	
-}
-
-static int femu_WritePage_wrap(uffs_Device *dev, u32 block, u32 page,
-							const u8 *data, int data_len, const u8 *spare, int spare_len)
-{
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-	int ret;
-
-#ifdef UFFS_FEMU_SHOW_FLASH_IO
-	if (data || spare) {
-		MSG(PFX " Write block %d page %d", block, page);
-		if (data)
-			MSG(" DATA[%d]", data_len);
-		if (spare)
-			MSG(" SPARE[%d]", spare_len);
-		MSG(TENDSTR);
-	}
-#endif
-	
-	ret = emu->ops_orig.WritePage(dev, block, page, data, data_len, spare, spare_len);
-
-	InjectBitFlip(dev, block, page);
-
-	return ret;
-}
-
-static int femu_WritePageWithLayout_wrap(uffs_Device *dev, u32 block, u32 page, const u8* data, int data_len, const u8 *ecc,
-									const uffs_TagStore *ts)
-{
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-	int ret;
-	
-#ifdef UFFS_FEMU_SHOW_FLASH_IO
-	if (data || ts) {
-		MSG(PFX " Write block %d page %d", block, page);
-		if (data)
-			MSG(" DATA[%d]", data_len);
-		if (ts)
-			MSG(" TS");
-		MSG(TENDSTR);
-	}
-#endif
-
-	ret = emu->ops_orig.WritePageWithLayout(dev, block, page, data, data_len, ecc, ts);
-
-	InjectBitFlip(dev, block, page);
-
-	return ret;
-}
-
-
-static int femu_EraseBlock_wrap(uffs_Device *dev, u32 blockNumber)
-{
-	uffs_FileEmu *emu = (uffs_FileEmu *)(dev->attr->_private);
-
-#ifdef FILEEMU_ERASE_BAD_BLOCKS
-	int blocks[] = FILEEMU_ERASE_BAD_BLOCKS;
-	int i;
-	URET ret;
-	ret = emu->ops_orig.EraseBlock(dev, blockNumber);
-
-	for (i = 0; i < ARRAY_SIZE(blocks); i++) {
-		if (blockNumber == blocks[i]) {
-			printf(" --- Inject bad block%d when erasing --- \n", blockNumber);
-			ret = UFFS_FLASH_BAD_BLK;
-		}
-	}
-
-	return ret;		
-
-#else
-
-	return emu->ops_orig.EraseBlock(dev, blockNumber);
-
-#endif
-}
-
-#endif // UFFS_FEMU_ENABLE_INJECTION
-
-/////////////////////////////////////////////////////////////////////////////////
diff --git a/components/dfs/filesystems/uffs/src/example/CMakeLists.txt b/components/dfs/filesystems/uffs/src/example/CMakeLists.txt
deleted file mode 100644
index 18cb307157..0000000000
--- a/components/dfs/filesystems/uffs/src/example/CMakeLists.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-IF (UNIX)
-	INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/posix)
-ENDIF()
-IF (WIN32)
-	INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/win32)
-ENDIF()
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/inc)
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/emu)
-
-LINK_DIRECTORIES(${uffs_BINARY_DIR}/src/emu)
-LINK_DIRECTORIES(${uffs_BINARY_DIR}/src/uffs)
-
-SET(static_mem_SRCS static-mem-allocate.c)
-SET(flash_if_SRCS flash-interface-example.c)
-ADD_EXECUTABLE(static-mem-example ${static_mem_SRCS})
-ADD_EXECUTABLE(flash-if-example ${flash_if_SRCS})
-TARGET_LINK_LIBRARIES(static-mem-example emu uffs emu platform apitest_server)
-TARGET_LINK_LIBRARIES(flash-if-example emu uffs emu platform)
-IF (UNIX)
-    TARGET_LINK_LIBRARIES(static-mem-example pthread)
-ENDIF ()
-
diff --git a/components/dfs/filesystems/uffs/src/example/flash-interface-example.c b/components/dfs/filesystems/uffs/src/example/flash-interface-example.c
deleted file mode 100644
index ff26beb281..0000000000
--- a/components/dfs/filesystems/uffs/src/example/flash-interface-example.c
+++ /dev/null
@@ -1,434 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-/**
- * \file flash-interface-example.c
- * \brief example for using flash driver and multiple partitions, with static memory allocator.
- * \author Ricky Zheng, created at 27 Nov, 2007
- */
-  
-#include <string.h>
-#include "uffs_config.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_flash.h"
-#include "uffs/uffs_mtb.h"
-#include "uffs/uffs_fs.h"
-
-#define PFX "ndrv: "
-
-struct my_nand_chip {
-	void *IOR_ADDR;
-	void *IOW_ADDR;
-	UBOOL inited;
-	// ... 
-};
-
-/*
- * Standard NAND flash commands
- */
-#define NAND_CMD_READ0		0
-#define NAND_CMD_READ1		1
-#define NAND_CMD_RNDOUT		5
-#define NAND_CMD_PAGEPROG	0x10
-#define NAND_CMD_READOOB	0x50
-#define NAND_CMD_ERASE1		0x60
-#define NAND_CMD_STATUS		0x70
-#define NAND_CMD_STATUS_MULTI	0x71
-#define NAND_CMD_SEQIN		0x80
-#define NAND_CMD_RNDIN		0x85
-#define NAND_CMD_READID		0x90
-#define NAND_CMD_ERASE2		0xd0
-#define NAND_CMD_RESET		0xff
-
-
-/* impelent the following functions for your NAND flash */
-#define CHIP_SET_CLE(chip) { chip = chip; }
-#define CHIP_CLR_CLE(chip) {}
-#define CHIP_SET_ALE(chip) {}
-#define CHIP_CLR_ALE(chip) {}
-#define CHIP_SET_NCS(chip) {}
-#define CHIP_CLR_NCS(chip) {}
-#define CHIP_BUSY(chip) {}
-#define CHIP_READY(chip) {}
-#define WRITE_COMMAND(chip, cmd) {}
-#define WRITE_DATA_ADDR(chip, block, page, offset) {}
-#define WRITE_ERASE_ADDR(chip, block) {}
-#define WRITE_DATA(chip, data, len) {}
-#define READ_DATA(chip, data, len) {}
-
-#define PARSE_STATUS(v) (UFFS_FLASH_NO_ERR)	// parse status to UFFS_FLASH_NO_ERR or UFFS_FLASH_BAD_BLK
-
-
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR == 0
-int main()
-{
-	uffs_Perror(UFFS_MSG_NORMAL, "This example need CONFIG_USE_STATIC_MEMORY_ALLOCATOR = 1");
-	return 0;
-}
-#else
-
-
-static int nand_read_page(uffs_Device *dev, u32 block, u32 page, u8 *data, int data_len, u8 *ecc,
-						u8 *spare, int spare_len)
-{
-	u8 val = 0;
-	int ret = UFFS_FLASH_NO_ERR;
-	struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private;
-
-	CHIP_CLR_NCS(chip);
-	if (data && data_len > 0) {
-		CHIP_SET_CLE(chip);
-		WRITE_COMMAND(chip, NAND_CMD_READ0);
-		CHIP_CLR_CLE(chip);
-		CHIP_SET_ALE(chip);
-		WRITE_DATA_ADDR(chip, block, page, 0);
-		CHIP_CLR_ALE(chip);
-		READ_DATA(chip, data, data_len);
-
-		// for now, we return all 0xFF to pass UFFS mount, you should remove this at your driver
-		memset(data, 0xFF, data_len);
-	}
-
-	if (spare && spare_len > 0) {
-		CHIP_SET_CLE(chip);
-		WRITE_COMMAND(chip, NAND_CMD_READOOB);
-		CHIP_CLR_CLE(chip);
-		CHIP_SET_ALE(chip);
-		WRITE_DATA_ADDR(chip, block, page, dev->attr->page_data_size);
-		CHIP_CLR_ALE(chip);
-		READ_DATA(chip, spare, spare_len);
-
-		// for now, we return all 0xFF to pass UFFS mount, you should remove this at your driver
-		memset(spare, 0xFF, spare_len);
-	}
-
-	if (data == NULL && spare == NULL) {
-		// read bad block mark
-		CHIP_SET_CLE(chip);
-		WRITE_COMMAND(chip, NAND_CMD_READOOB);
-		CHIP_CLR_CLE(chip);
-		CHIP_SET_ALE(chip);
-		WRITE_DATA_ADDR(chip, block, page, dev->attr->page_data_size + attr->block_status_offs);
-		CHIP_CLR_ALE(chip);
-		READ_DATA(chip, &val, 1);
-		ret = (val == 0xFF ? UFFS_FLASH_NO_ERR : UFFS_FLASH_BAD_BLK);
-
-		// for now, we return UFFS_FLASH_NO_ERR to pass UFFS mount, you should remove this at your driver
-		ret = UFFS_FLASH_NO_ERR;
-	}
-
-	CHIP_SET_NCS(chip);
-
-	return ret;
-}
-
-static int nand_write_page(uffs_Device *dev, u32 block, u32 page,
-							const u8 *data, int data_len, const u8 *spare, int spare_len)
-{
-	u8 val = 0;
-	int ret = UFFS_FLASH_NO_ERR;
-	UBOOL fall_through = FALSE;
-	struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private;
-
-	CHIP_CLR_NCS(chip);
-
-	if (data && data_len > 0) {
-		CHIP_SET_CLE(chip);
-		WRITE_COMMAND(chip, NAND_CMD_READ0);
-		WRITE_COMMAND(chip, NAND_CMD_SEQIN);
-		CHIP_CLR_CLE(chip);
-		CHIP_SET_ALE(chip);
-		WRITE_DATA_ADDR(chip, block, page, 0);
-		CHIP_CLR_ALE(chip);
-		CHIP_BUSY(chip);
-		WRITE_DATA(chip, data, data_len);
-		if (data_len == dev->attr->page_data_size)
-			fall_through = U_TRUE;
-		else {
-			CHIP_SET_CLE(chip);
-			WRITE_COMMAND(chip, NAND_CMD_PAGEPROG);
-			WRITE_COMMAND(chip, NAND_CMD_STATUS);
-			CHIP_CLR_CLE(chip);
-			CHIP_READY(chip);
-			READ_DATA(chip, &val, 1);
-			ret = PARSE_STATUS(val);
-		}
-	}
-
-	if (ret != UFFS_FLASH_NO_ERR)
-		goto ext;
-
-	if (spare && spare_len > 0) {
-		if (!fall_through) {
-			CHIP_SET_CLE(chip);
-			WRITE_COMMAND(chip, NAND_CMD_READOOB);
-			WRITE_COMMAND(chip, NAND_CMD_SEQIN);
-			CHIP_CLR_CLE(chip);
-			CHIP_SET_ALE(chip);
-			WRITE_DATA_ADDR(chip, block, page, dev->attr->page_data_size);
-			CHIP_CLR_ALE(chip);
-			CHIP_BUSY(chip);
-		}
-		WRITE_DATA(chip, spare, spare_len);
-		CHIP_SET_CLE(chip);
-		WRITE_COMMAND(chip, NAND_CMD_PAGEPROG);
-		WRITE_COMMAND(chip, NAND_CMD_STATUS);
-		CHIP_CLR_CLE(chip);
-		CHIP_READY(chip);
-		READ_DATA(chip, &val, 1);
-		ret = PARSE_STATUS(val);
-	}
-
-	if (data == NULL && spare == NULL) {
-		// mark bad block
-		CHIP_SET_CLE(chip);
-		WRITE_COMMAND(chip, NAND_CMD_READOOB);
-		WRITE_COMMAND(chip, NAND_CMD_SEQIN);
-		CHIP_CLR_CLE(chip);
-		CHIP_SET_ALE(chip);
-		WRITE_DATA_ADDR(chip, block, page, dev->attr->page_data_size + attr->block_status_offs);
-		CHIP_CLR_ALE(chip);
-		CHIP_BUSY(chip);
-		val = 0;
-		WRITE_DATA(chip, &val, 1);
-		CHIP_SET_CLE(chip);
-		WRITE_COMMAND(chip, NAND_CMD_PAGEPROG);
-		WRITE_COMMAND(chip, NAND_CMD_STATUS);
-		CHIP_CLR_CLE(chip);
-		CHIP_READY(chip);
-		READ_DATA(chip, &val, 1);
-		ret = PARSE_STATUS(val);
-	}
-
-ext:
-	CHIP_SET_NCS(chip);
-
-	return ret;
-}
-
-static int nand_erase_block(uffs_Device *dev, u32 block)
-{
-	u8 val = 0;
-	struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private;
-
-	CHIP_CLR_NCS(chip);
-
-	CHIP_SET_CLE(chip);
-	WRITE_COMMAND(chip, NAND_CMD_ERASE1);
-	CHIP_CLR_CLE(chip);
-	CHIP_SET_ALE(chip);
-	WRITE_ERASE_ADDR(chip, blcok);
-	CHIP_CLR_ALE(chip);
-	CHIP_SET_CLE(chip);
-	WRITE_COMMAND(chip, NAND_CMD_ERASE2);
-	WRITE_COMMAND(chip, NAND_CMD_STATUS);
-	CHIP_CLR_CLE(chip);
-	CHIP_READY(chip);
-	READ_DATA(chip, &val, 1);
-
-	CHIP_SET_NCS(chip);
-
-	val = val; // just for eliminating warning
-
-	return PARSE_STATUS(val);
-}
-
-
-static int nand_init_flash(uffs_Device *dev)
-{
-	// initialize your hardware here ...
-	struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private;
-
-	if (!chip->inited) {
-		// setup chip I/O address, setup NAND flash controller ... etc.
-		// chip->IOR_ADDR = 0xF0000000
-		// chip->IOW_ADDR = 0xF0000000
-		chip->inited = U_TRUE;
-	}
-	return 0;
-}
-
-static int nand_release_flash(uffs_Device *dev)
-{
-	// release your hardware here
-	struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private;
-
-	chip = chip;
-
-	return 0;
-}
-
-static uffs_FlashOps g_my_nand_ops = {
-	nand_init_flash,	// InitFlash()
-	nand_release_flash,	// ReleaseFlash()
-	nand_read_page,		// ReadPage()
-	NULL,			// ReadPageWithLayout
-	nand_write_page,	// WritePage()
-	NULL,			// WritePageWithLayout
-	NULL,			// IsBadBlock(), let UFFS take care of it.
-	NULL,			// MarkBadBlock(), let UFFS take care of it.
-	nand_erase_block,	// EraseBlock()
-};
-
-/////////////////////////////////////////////////////////////////////////////////
-
-// change these parameters to fit your nand flash specification
-
-#define TOTAL_BLOCKS    1024
-#define PAGE_DATA_SIZE  512
-#define PAGE_SPARE_SIZE 16
-#define PAGES_PER_BLOCK 32
-#define PAGE_SIZE		(PAGE_DATA_SIZE + PAGE_SPARE_SIZE)
-#define BLOCK_DATA_SIZE (PAGE_DATA_SIZE * PAGES_PER_BLOCK)
-
-#define NR_PARTITION	2								/* total partitions */
-#define PAR_1_BLOCKS	100								/* partition 1 */
-#define PAR_2_BLOCKS	(TOTAL_BLOCKS - PAR_1_BLOCKS)	/* partition 2 */
-
-struct my_nand_chip g_nand_chip = {0};
-static struct uffs_StorageAttrSt g_my_flash_storage = {0};
-
-/* define mount table */
-static uffs_Device demo_device_1 = {0};
-static uffs_Device demo_device_2 = {0};
-
-static uffs_MountTable demo_mount_table[] = {
-	{ &demo_device_1,  0, PAR_1_BLOCKS - 1, "/data/" },
-	{ &demo_device_2,  PAR_1_BLOCKS, PAR_1_BLOCKS + PAR_2_BLOCKS - 1, "/" },
-	{ NULL, 0, 0, NULL }
-};
-
-/* static alloc the memory for each partition */
-static int static_buffer_par1[UFFS_STATIC_BUFF_SIZE(PAGES_PER_BLOCK, PAGE_SIZE, PAR_1_BLOCKS) / sizeof(int)];
-static int static_buffer_par2[UFFS_STATIC_BUFF_SIZE(PAGES_PER_BLOCK, PAGE_SIZE, PAR_2_BLOCKS) / sizeof(int)];;
-
-static void init_nand_chip(struct my_nand_chip *chip)
-{
-	// init chip IO address, etc.
-}
-
-static void setup_flash_storage(struct uffs_StorageAttrSt *attr)
-{
-	memset(attr, 0, sizeof(struct uffs_StorageAttrSt));
-	
-	// setup NAND flash attributes.	
-	attr->total_blocks = TOTAL_BLOCKS;			/* total blocks */
-	attr->page_data_size = PAGE_DATA_SIZE;		/* page data size */
-	attr->pages_per_block = PAGES_PER_BLOCK;	/* pages per block */
-	attr->spare_size = PAGE_SPARE_SIZE;		  	/* page spare size */
-	attr->block_status_offs = 4;				/* block status offset is 5th byte in spare */
-	attr->ecc_opt = UFFS_ECC_SOFT;              /* ecc option */
-	attr->layout_opt = UFFS_LAYOUT_UFFS;        /* let UFFS do the spare layout */    
-}
-
-static URET my_InitDevice(uffs_Device *dev)
-{
-	dev->attr = &g_my_flash_storage;			// NAND flash attributes
-	dev->attr->_private = (void *) &g_nand_chip;// hook nand_chip data structure to attr->_private
-	dev->ops = &g_my_nand_ops;					// NAND driver
-
-	init_nand_chip(&g_nand_chip);
-    
-	return U_SUCC;
-}
-
-static URET my_ReleaseDevice(uffs_Device *dev)
-{
-	return U_SUCC;
-}
-
-
-static int my_init_filesystem(void)
-{
-	uffs_MountTable *mtbl = &(demo_mount_table[0]);
-
-	/* setup nand storage attributes */
-	setup_flash_storage(&g_my_flash_storage);
-
-	/* setup memory allocator */
-	uffs_MemSetupStaticAllocator(&demo_device_1.mem, static_buffer_par1, sizeof(static_buffer_par1));
-	uffs_MemSetupStaticAllocator(&demo_device_2.mem, static_buffer_par2, sizeof(static_buffer_par2));
-
-	/* register mount table */
-	while(mtbl->dev) {
-		// setup device init/release entry
-		mtbl->dev->Init = my_InitDevice;
-		mtbl->dev->Release = my_ReleaseDevice;
-		uffs_RegisterMountTable(mtbl);
-		mtbl++;
-	}
-
-	// mount partitions
-	for (mtbl = &(demo_mount_table[0]); mtbl->mount != NULL; mtbl++) {
-		uffs_Mount(mtbl->mount);
-	}
-
-	return uffs_InitFileSystemObjects() == U_SUCC ? 0 : -1;
-}
-
-static int my_release_filesystem(void)
-{
-	uffs_MountTable *mtb;
-	int ret = 0;
-
-	// unmount parttions
-	for (mtb = &(demo_mount_table[0]); ret == 0 && mtb->mount != NULL; mtb++) {
-		ret = uffs_UnMount(mtb->mount);
-	}
-
-	// release objects
-	if (ret == 0)
-		ret = (uffs_ReleaseFileSystemObjects() == U_SUCC ? 0 : -1);
-
-	return ret;
-}
-
-/* application entry */
-int main()
-{
-	uffs_SetupDebugOutput(); 	// setup debug output as early as possible
-
-	my_init_filesystem();
-
-	// ... my application codes ....
-	// read/write/create/delete files ...
-
-	my_release_filesystem();
-
-	return 0;
-}
-
-#endif
-
-
-/////////////////////////////////////////////////////////////////////////////////
diff --git a/components/dfs/filesystems/uffs/src/example/static-mem-allocate.c b/components/dfs/filesystems/uffs/src/example/static-mem-allocate.c
deleted file mode 100644
index 59aff8e63d..0000000000
--- a/components/dfs/filesystems/uffs/src/example/static-mem-allocate.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file static-mem-allocate.c
- * \brief demostrate how to use static memory allocation. This example use 
- *        file emulated NAND flash, one partition only.
- * \author Ricky Zheng
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_fs.h"
-#include "uffs/uffs_utils.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs_mtb.h"
-#include "cmdline.h"
-#include "uffs_fileem.h"
-
-#define PFX "sexp: "
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR == 0
-int main()
-{
-	uffs_Perror(UFFS_MSG_NORMAL, "This example need CONFIG_USE_STATIC_MEMORY_ALLOCATOR = 1");
-	return 0;
-}
-#else
-
-extern struct cli_commandset * get_helper_cmds(void);
-extern struct cli_commandset * get_test_cmds(void);
-
-#define PAGE_DATA_SIZE    512
-#define PAGE_SPARE_SIZE   16
-#define PAGES_PER_BLOCK   32
-#define TOTAL_BLOCKS      128
-
-#define PAGE_SIZE					(PAGE_DATA_SIZE + PAGE_SPARE_SIZE)
-#define BLOCK_DATA_SIZE				(PAGES_PER_BLOCK * PAGE_DATA_SIZE)
-#define TOTAL_DATA_SIZE				(TOTAL_BLOCKS * BLOCK_DATA_SIZE)
-#define BLOCK_SIZE					(PAGES_PER_BLOCK * PAGE_SIZE)
-#define TOTAL_SIZE					(BLOCK_SIZE * TOTAL_BLOCKS)
-
-#define MAX_MOUNT_TABLES		10
-#define MAX_MOUNT_POINT_NAME	32
-
-static uffs_Device demo_device = {0};
-static struct uffs_MountTableEntrySt demo_mount = {
-	&demo_device,
-	0,    /* start from block 0 */
-	-1,   /* use whole chip */
-	"/",  /* mount point */
-	NULL
-};
-
-/* static alloc the memory */
-static int static_buffer_pool[UFFS_STATIC_BUFF_SIZE(PAGES_PER_BLOCK, PAGE_SIZE, TOTAL_BLOCKS) / sizeof(int)];
-
-
-static void setup_storage(struct uffs_StorageAttrSt *attr)
-{
-	attr->total_blocks = TOTAL_BLOCKS;			/* total blocks */
-	attr->page_data_size = PAGE_DATA_SIZE;		/* page data size */
-	attr->spare_size = PAGE_SPARE_SIZE;		  	/* page spare size */
-	attr->pages_per_block = PAGES_PER_BLOCK;	/* pages per block */
-	attr->block_status_offs = 4;				/* block status offset is 5th byte in spare */
-    attr->ecc_opt = UFFS_ECC_SOFT;              /* use UFFS software ecc */
-    attr->layout_opt = UFFS_LAYOUT_UFFS;        /* let UFFS do the spare layout */    
-}
-
-static void setup_device(uffs_Device *dev)
-{
-	// using file emulator device
-	dev->Init = femu_InitDevice;
-	dev->Release = femu_ReleaseDevice;
-	dev->attr = femu_GetStorage();
-}
-
-static int init_uffs_fs(void)
-{
-	struct uffs_MountTableEntrySt *mtbl = &demo_mount;
-
-	/* setup flash storage attributes */
-	setup_storage(femu_GetStorage());
-
-	/* setup memory allocator */
-	uffs_MemSetupStaticAllocator(&mtbl->dev->mem, static_buffer_pool, sizeof(static_buffer_pool));
-
-	/* setup device: init, release, attr */
-	setup_device(mtbl->dev);
-
-	/* register mount table */
-	uffs_RegisterMountTable(mtbl);
-
-	/* mount it */
-	uffs_Mount("/");
-
-	return uffs_InitFileSystemObjects() == U_SUCC ? 0 : -1;
-}
-
-static int release_uffs_fs(void)
-{
-	uffs_UnMount("/");
-
-	return uffs_ReleaseFileSystemObjects();
-}
-
-int main(int argc, char *argv[])
-{
-	int ret;
-
-	uffs_SetupDebugOutput(); 	// setup debug output as early as possible
-
-	ret = init_uffs_fs();
-
-	if (ret != 0) {
-		printf ("Init file system fail: %d\n", ret);
-		return -1;
-	}
-
-	cli_add_commandset(get_helper_cmds());
-	cli_add_commandset(get_test_cmds());
-	cli_main_entry();
-
-	release_uffs_fs();
-
-	return 0;
-}
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs.h
deleted file mode 100644
index 12121cd1ab..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-/** 
- * \file uffs.h
- * \brief uffs basic defines
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_H_
-#define _UFFS_H_
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-#define UO_RDONLY		0x0000		/** read only */
-#define UO_WRONLY		0x0001		/** write only */
-#define UO_RDWR			0x0002		/** read and write */
-#define UO_APPEND		0x0008		/** append */
-
-#define UO_BINARY		0x0000		/** no used in uffs */
-
-#define UO_CREATE		0x0100
-#define UO_TRUNC		0x0200
-#define UO_EXCL			0x0400
-
-#define UO_NOECC		0x0800		/** skip ECC when reading file data from media */
-
-
-#define UO_DIR			0x1000		/** open a directory */
-
-
-
-#define UENOERR 0		/** no error */
-#define UEACCES	1		/** Tried to open read-only file
-						 for writing, or files sharing mode
-						 does not allow specified operations,
-						 or given path is directory */
-
-#define UEEXIST	2		/** _O_CREAT and _O_EXCL flags specified,
-							but filename already exists */
-#define UEINVAL	3		/** Invalid oflag or pmode argument */
-#define UEMFILE	4		/** No more file handles available
-						  (too many open files)  */
-#define UENOENT	5		/** file or path not found */
-#define UETIME	6		/** can't set file time */
-#define UEBADF	9		/** invalid file handle */
-#define UENOMEM	10		/** no enough memory */
-#define UEIOERR	11		/** I/O error from lower level flash operation */
-#define UENOTDIR 12		/** Not a directory */
-#define UEISDIR 13		/** Is a directory */    
-
-#define UEUNKNOWN_ERR	100	/** unknown error */
-
-
-
-#define _SEEK_CUR		0		/** seek from current position */
-#define _SEEK_SET		1		/** seek from beginning of file */
-#define _SEEK_END		2		/** seek from end of file */
-
-#define USEEK_CUR		_SEEK_CUR
-#define USEEK_SET		_SEEK_SET
-#define USEEK_END		_SEEK_END
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_badblock.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_badblock.h
deleted file mode 100644
index b44bbb8170..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_badblock.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-/** 
- * \file uffs_badblock.h
- * \brief bad block management
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_BADBLOCK_H_
-#define _UFFS_BADBLOCK_H_
-
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_core.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-
-#define HAVE_BADBLOCK(dev) (dev->bad.block != UFFS_INVALID_BLOCK)
-
-/** initialize bad block management data structures for uffs device */
-void uffs_BadBlockInit(uffs_Device *dev);
-
-/** processing bad block: erase bad block,
-	mark it as 'bad' and put it to bad block list */
-void uffs_BadBlockProcess(uffs_Device *dev, TreeNode *node);
-
-/** processing bad block: erase bad block,
-	mark it as 'bad' and put it to suspend block list */
-void uffs_BadBlockProcessSuspend(uffs_Device *dev, TreeNode *node);
-
-/** try to recover data from a new discovered bad block */
-void uffs_BadBlockRecover(uffs_Device *dev);
-
-/** put a new block to the bad block waiting list */
-void uffs_BadBlockAdd(uffs_Device *dev, int block);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_blockinfo.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_blockinfo.h
deleted file mode 100644
index dfd3a9be7c..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_blockinfo.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-/** 
- * \file uffs_blockinfo.h
- * \brief data structure for operating block information
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_BLOCKINFO_H_
-#define _UFFS_BLOCKINFO_H_
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_core.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-/** 
- * \struct uffs_PageSpareSt
- * \brief this structure is for storing uffs tag and more. 
- */
-struct uffs_PageSpareSt {
-	uffs_Tags tag;			//!< page tag
-	int expired:1;
-};
-
-/** 
- * \struct uffs_BlockInfoSt
- * \brief block information data. Block info is frequently accessed,
-          UFFS use a cache system to speed up block info access.
- */
-struct uffs_BlockInfoSt {
-	struct uffs_BlockInfoSt *next;
-	struct uffs_BlockInfoSt *prev;
-	u16 block;							//!< block number
-	struct uffs_PageSpareSt *spares;	//!< page spare info array
-	int expired_count;					//!< how many pages expired in this block ? 
-	int ref_count;						//!< reference counter, it's safe to reuse this block memory when the counter is 0.
-};
-
-/** get tag from block info */
-#define GET_TAG(bc, page) (&(bc)->spares[page].tag)
-
-
-/** initialize block info caches */
-URET uffs_BlockInfoInitCache(uffs_Device *dev, int maxCachedBlocks);
-
-/** release block info caches */
-URET uffs_BlockInfoReleaseCache(uffs_Device *dev);
-
-/** load page spare to block info cache */
-URET uffs_BlockInfoLoad(uffs_Device *dev, uffs_BlockInfo *work, int page);
-
-/** find block info cache */
-uffs_BlockInfo * uffs_BlockInfoFindInCache(uffs_Device *dev, int block);
-
-/** get block info cache, load it on demand */
-uffs_BlockInfo * uffs_BlockInfoGet(uffs_Device *dev, int block);
-
-/** put info cache back to pool, should be called with #uffs_BlockInfoGet in pairs. */
-void uffs_BlockInfoPut(uffs_Device *dev, uffs_BlockInfo *p);
-
-/** explicitly expire a block info cache */
-void uffs_BlockInfoExpire(uffs_Device *dev, uffs_BlockInfo *p, int page);
-
-/** no one hold any block info cache ? safe to release block info caches */
-UBOOL uffs_BlockInfoIsAllFree(uffs_Device *dev);
-
-/** explicitly expire all block info caches */
-void uffs_BlockInfoExpireAll(uffs_Device *dev);
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_buf.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_buf.h
deleted file mode 100644
index b5c99f6d5e..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_buf.h
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_buf.h
- * \brief page buffers
- * \author Ricky Zheng
- */
-
-#ifndef UFFS_BUF_H
-#define UFFS_BUF_H
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_tree.h"
-#include "uffs/uffs_core.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-	
-#define CLONE_BUF_MARK		0xffff		//!< set uffs_BufSt::ref_count to this for a 'cloned' buffer
-
-/** for uffs_BufSt::mark */
-#define UFFS_BUF_EMPTY		0			//!< buffer is empty
-#define UFFS_BUF_VALID		1			//!< buffer is holding valid data
-#define UFFS_BUF_DIRTY		2			//!< buffer data is modified
-
-/** for uffs_BufSt::ext_mark */
-#define UFFS_BUF_EXT_MARK_TRUNC_TAIL 1	//!< the last page of file (when truncating a file)
-
-/** uffs page buffer */
-struct uffs_BufSt{
-	struct uffs_BufSt *next;			//!< link to next buffer
-	struct uffs_BufSt *prev;			//!< link to previous buffer
-	struct uffs_BufSt *next_dirty;		//!< link to next dirty buffer
-	struct uffs_BufSt *prev_dirty;		//!< link to previous dirty buffer
-	u8 type;							//!< #UFFS_TYPE_DIR or #UFFS_TYPE_FILE or #UFFS_TYPE_DATA
-	u8 ext_mark;						//!< extension mark. 
-	u16 parent;							//!< parent serial
-	u16 serial;							//!< serial 
-	u16 page_id;						//!< page id 
-	u16 mark;							//!< #UFFS_BUF_EMPTY or #UFFS_BUF_VALID, or #UFFS_BUF_DIRTY ?
-	u16 ref_count;						//!< reference counter, or #CLONE_BUF_MARK for a cloned buffer
-	u16 data_len;						//!< length of data
-	u16 check_sum;						//!< checksum field
-	u8 * data;							//!< data buffer
-	u8 * header;						//!< header
-};
-
-#define uffs_BufIsFree(buf) (buf->ref_count == 0 ? U_TRUE : U_FALSE)
-
-/** initialize page buffers */
-URET uffs_BufInit(struct uffs_DeviceSt *dev, int buf_max, int dirty_buf_max);
-
-/** release page buffers */
-URET uffs_BufReleaseAll(struct uffs_DeviceSt *dev);
-
-/** find the page buffer, move to link list head if found */
-uffs_Buf * uffs_BufGet(struct uffs_DeviceSt *dev, u16 parent, u16 serial, u16 page_id);
-uffs_Buf *uffs_BufGetEx(struct uffs_DeviceSt *dev, u8 type, TreeNode *node, u16 page_id, int oflag);
-
-/** alloc a new page buffer */
-uffs_Buf *uffs_BufNew(struct uffs_DeviceSt *dev, u8 type, u16 parent, u16 serial, u16 page_id);
-
-/** find the page buffer (not affect the reference counter) */
-uffs_Buf * uffs_BufFind(uffs_Device *dev, u16 parent, u16 serial, u16 page_id);
-
-/** find the page buffer from #start (not affect the reference counter) */
-uffs_Buf * uffs_BufFindFrom(uffs_Device *dev, uffs_Buf *start,
-						u16 parent, u16 serial, u16 page_id);
-
-/** put page buffer back to pool, called in pair with #uffs_Get,#uffs_GetEx or #uffs_BufNew */
-URET uffs_BufPut(uffs_Device *dev, uffs_Buf *buf);
-
-/** increase buffer references */
-void uffs_BufIncRef(uffs_Buf *buf);
-
-/** decrease buffer references */
-void uffs_BufDecRef(uffs_Buf *buf);
-
-/** write data to a page buffer */
-URET uffs_BufWrite(struct uffs_DeviceSt *dev, uffs_Buf *buf, void *data, u32 ofs, u32 len);
-
-/** read data from a page buffer */
-URET uffs_BufRead(struct uffs_DeviceSt *dev, uffs_Buf *buf, void *data, u32 ofs, u32 len);
-
-/** mark buffer as #UFFS_BUF_EMPTY if ref_count == 0, and discard all data it holds */
-void uffs_BufMarkEmpty(uffs_Device *dev, uffs_Buf *buf);
-
-/** if there is no free dirty group slot, flush the most dirty group */
-URET uffs_BufFlush(struct uffs_DeviceSt *dev);
-URET uffs_BufFlushEx(struct uffs_DeviceSt *dev, UBOOL force_block_recover);
-
-/** flush dirty group */
-URET uffs_BufFlushGroup(struct uffs_DeviceSt *dev, u16 parent, u16 serial);
-URET uffs_BufFlushGroupEx(struct uffs_DeviceSt *dev, u16 parent, u16 serial, UBOOL force_block_recover);
-
-/** find free dirty group slot */
-int uffs_BufFindFreeGroupSlot(struct uffs_DeviceSt *dev);
-
-/** find the dirty group slot */
-int uffs_BufFindGroupSlot(struct uffs_DeviceSt *dev, u16 parent, u16 serial);
-
-/** lock dirty group */
-URET uffs_BufLockGroup(struct uffs_DeviceSt *dev, int slot);
-
-/** unlock dirty group */
-URET uffs_BufUnLockGroup(struct uffs_DeviceSt *dev, int slot);
-
-/** flush most dirty group */
-URET uffs_BufFlushMostDirtyGroup(struct uffs_DeviceSt *dev);
-
-/** flush all groups under the same parent number */
-URET uffs_BufFlushGroupMatchParent(struct uffs_DeviceSt *dev, u16 parent);
-
-/** flush all page buffers */
-URET uffs_BufFlushAll(struct uffs_DeviceSt *dev);
-
-/** no one holding any page buffer ? safe to release page buffers */
-UBOOL uffs_BufIsAllFree(struct uffs_DeviceSt *dev);
-
-/** are all page buffer marked with #UFFS_BUF_EMPTY ? */
-UBOOL uffs_BufIsAllEmpty(struct uffs_DeviceSt *dev);
-
-/** mark all page buffer as #UFFS_BUF_EMPTY */
-URET uffs_BufSetAllEmpty(struct uffs_DeviceSt *dev);
-
-/** clone a page buffer */
-uffs_Buf * uffs_BufClone(struct uffs_DeviceSt *dev, uffs_Buf *buf);
-
-/** release a cloned page buffer, call in pair with #uffs_BufClone */
-URET uffs_BufFreeClone(uffs_Device *dev, uffs_Buf *buf);
-
-/** load physical storage data to page buffer */
-URET uffs_BufLoadPhyData(uffs_Device *dev, uffs_Buf *buf, u32 block, u32 page);
-
-/** load physical storage data to page buffer withouth checking ECC */
-URET uffs_LoadPhyDataToBufEccUnCare(uffs_Device *dev, uffs_Buf *buf, u32 block, u32 page);
-
-/** showing page buffers info, for debug only */
-void uffs_BufInspect(uffs_Device *dev);
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_core.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_core.h
deleted file mode 100644
index 1f18007f0f..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_core.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-#ifndef _UFFS_CORE_H_
-#define _UFFS_CORE_H_
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-/** \typedef uffs_Device */
-typedef struct uffs_DeviceSt		uffs_Device;
-/** \typedef uffs_FlashOps */
-typedef struct uffs_FlashOpsSt		uffs_FlashOps;
-
-typedef struct uffs_BlockInfoSt uffs_BlockInfo;
-typedef struct uffs_PageSpareSt uffs_PageSpare;
-typedef struct uffs_TagsSt			uffs_Tags;		//!< UFFS page tags
-typedef struct uffs_TagStoreSt      uffs_TagStore;  //!< UFFS page tags physical store structure
-
-typedef struct uffs_BufSt uffs_Buf;
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_crc.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_crc.h
deleted file mode 100644
index a31bb21c91..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_crc.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_crc.h
- * \author Ricky Zheng, created 23 Nov, 2011
- */
-
-#ifndef _UFFS_CRC_H_
-#define _UFFS_CRC_H_
-
-#include "uffs/uffs_types.h"
-
-u16 uffs_crc16update(const void *data, int length, u16 crc);
-u16 uffs_crc16sum(const void *data, int length);
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_device.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_device.h
deleted file mode 100644
index 22614528a3..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_device.h
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_device.h
- * \brief uffs device structures definition
- * \author Ricky Zheng
- */
-
-#ifndef UFFS_DEVICE_H
-#define UFFS_DEVICE_H
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_buf.h"
-#include "uffs/uffs_blockinfo.h"
-#include "uffs/uffs_pool.h"
-#include "uffs/uffs_tree.h"
-#include "uffs/uffs_mem.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs_flash.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-/**
- * \def MAX_DIRTY_BUF_GROUPS
- */
-#define MAX_DIRTY_BUF_GROUPS    3
-
-
-/** 
- * \struct uffs_BlockInfoCacheSt
- * \brief block information structure, used to manager block information caches
- */
-struct uffs_BlockInfoCacheSt {
-	uffs_BlockInfo *head;			//!< buffer head of block info(spares)
-	uffs_BlockInfo *tail;			//!< buffer tail
-	void *mem_pool;					//!< internal memory pool, used for release whole buffer
-};
-
-/** 
- * \struct uffs_PartitionSt
- * \brief partition basic information
- */
-struct uffs_PartitionSt {
-	u16 start;		//!< start block number of partition
-	u16 end;		//!< end block number of partition
-};
-
-/** 
- * \struct uffs_LockSt
- * \brief lock stuffs
- */
-struct uffs_LockSt {
-	OSSEM sem;
-	int task_id;
-	int counter;
-};
-
-/** 
- * \struct uffs_DirtyGroupSt
- * \brief manager dirty page buffers
- */
-struct uffs_DirtyGroupSt {
-	int count;					//!< dirty buffers count
-	int lock;					//!< dirty group lock (0: unlocked, >0: locked)
-	uffs_Buf *dirty;			//!< dirty buffer list
-};
-
-/** 
- * \struct uffs_PageBufDescSt
- * \brief uffs page buffers descriptor
- */
-struct uffs_PageBufDescSt {
-	uffs_Buf *head;			//!< head of buffers
-	uffs_Buf *tail;			//!< tail of buffers
-	struct uffs_DirtyGroupSt dirtyGroup[MAX_DIRTY_BUF_GROUPS];	//!< dirty buffer groups
-	int buf_max;			//!< maximum buffers
-	int dirty_buf_max;		//!< maximum dirty buffer allowed
-	void *pool;				//!< memory pool for buffers
-};
-
-
-/** 
- * \struct uffs_PageCommInfoSt
- * \brief common data for device, should be initialised at early
- * \note it is possible that pg_size is smaller than physical page size, but normally they are the same.
- * \note page data layout: [HEADER] + [DATA]
- */
-struct uffs_PageCommInfoSt {
-	u16 pg_data_size;			//!< page data size
-	u16 header_size;			//!< header size
-	u16 pg_size;				//!< page size
-};
-
-/** 
- * \struct uffs_NewBadBlockSt
- * \brief holding new discovered bad block
- */
-struct uffs_NewBadBlockSt {
-	u16 block;				//!< bad block, FIX ME to process more than one bad block
-};
-
-/**
- * \struct uffs_FlashStatSt
- * \typedef uffs_FlashStat
- * \brief statistic data of flash read/write/erase activities
- */
-typedef struct uffs_FlashStatSt {
-	int block_erase_count;
-	int page_write_count;
-	int page_read_count;
-	int page_header_read_count;
-	int spare_write_count;
-	int spare_read_count;
-	unsigned long io_read;
-	unsigned long io_write;
-} uffs_FlashStat;
-
-
-/**
- * \struct uffs_ConfigSt
- * \typedef uffs_Config
- * \brief uffs config parameters
- */
-typedef struct uffs_ConfigSt {
-	int bc_caches;
-	int page_buffers;
-	int dirty_pages;
-	int dirty_groups;
-	int reserved_free_blocks;
-} uffs_Config;
-
-
-/** 
- * \struct uffs_DeviceSt
- * \brief The core data structure of UFFS, all information needed by manipulate UFFS object
- * \note one partition corresponding one uffs device.
- */
-struct uffs_DeviceSt {
-	URET (*Init)(uffs_Device *dev);				//!< low level initialisation
-	URET (*Release)(uffs_Device *dev);			//!< low level release
-	void *_private;								//!< private data for device
-
-	struct uffs_StorageAttrSt		*attr;		//!< storage attribute
-	struct uffs_PartitionSt			par;		//!< partition information
-	struct uffs_FlashOpsSt			*ops;		//!< flash operations
-	struct uffs_BlockInfoCacheSt	bc;			//!< block info cache
-	struct uffs_LockSt				lock;		//!< lock data structure
-	struct uffs_PageBufDescSt		buf;		//!< page buffers
-	struct uffs_PageCommInfoSt		com;		//!< common information
-	struct uffs_TreeSt				tree;		//!< tree list of block
-	struct uffs_NewBadBlockSt		bad;		//!< new discovered bad block
-	struct uffs_FlashStatSt			st;			//!< statistic (counters)
-	struct uffs_memAllocatorSt		mem;		//!< uffs memory allocator
-	struct uffs_ConfigSt			cfg;		//!< uffs config
-	u32	ref_count;								//!< device reference count
-	int	dev_num;								//!< device number (partition number)	
-};
-
-
-/** create the lock for uffs device */
-void uffs_DeviceInitLock(uffs_Device *dev);
-
-/** delete the lock of uffs device */
-void uffs_DeviceReleaseLock(uffs_Device *dev);
-
-/** lock uffs device */
-void uffs_DeviceLock(uffs_Device *dev);
-
-/** unlock uffs device */
-void uffs_DeviceUnLock(uffs_Device *dev);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_ecc.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_ecc.h
deleted file mode 100644
index 18fbd92a38..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_ecc.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_ecc.h
- * \brief file handle operations
- * \author Ricky Zheng, created 8th Jun, 2005
- */
-
-#ifndef _UFFS_ECC_H_
-#define _UFFS_ECC_H_
-
-#include <string.h>
-
-#include "uffs/uffs_fs.h"
-#include "uffs/uffs_core.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-
-
-#define MAX_ECC_LENGTH	24	//!< 2K page ecc length is 24 bytes.
-
-/**
- * calculate ECC
- * \return length of generated ECC. (3 bytes ECC per 256 data) 
- */
-int uffs_EccMake(const void *data, int data_len, void *ecc);
-
-/** 
- * correct data by ECC.
- *
- * return:   0 -- no error
- *			-1 -- can not be corrected
- *			>0 -- how many bits are corrected
- */
-int uffs_EccCorrect(void *data, int data_len, void *read_ecc, const void *test_ecc);
-
-
-/**
- * generate 12 bit ecc for maximum 8 bytes data
- */
-u16 uffs_EccMake8(const void *data, int data_len);
-
-/**
- * correct maximum 8 bytes data from 12 bits ECC
- *
- * return:   0 -- no error
- *			-1 -- can not be corrected
- *			>0 -- how many bits are corrected
- */
-int uffs_EccCorrect8(void *data, u16 read_ecc, u16 test_ecc, int errtop);
-
-
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_fd.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_fd.h
deleted file mode 100644
index c5d8159074..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_fd.h
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fd.h
- * \brief PISIX like file operations
- * \author Ricky Zheng, created 8th Jun, 2005
- */
-
-#ifndef _UFFS_FD_H_
-#define _UFFS_FD_H_
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-#include "uffs/uffs.h"
-
-/**
- * \brief definitions for uffs_stat::st_mode
- */
-#define	US_IFMT		0xF000	/* file type make */
-#define	US_IFREG	0x8000	/* regular */
-#define	US_IFLNK	0xA000	/* symbolic link */
-#define	US_IFDIR	0x4000	/* directory */
-#define	US_IREAD	0000400	/* read permission */
-#define	US_IWRITE	0000200	/* write permission */
-
-#define	US_IRWXU	00700	/* RWX	owner */
-#define	US_IRUSR	00400	/* R	owner */
-#define	US_IWUSR	00200	/* W	owner */
-#define	US_IXUSR	00100	/* X	owner */
-#define	US_IRWXG	00070	/* RWX	group */
-#define	US_IRGRP	00040	/* R	group */
-#define	US_IWGRP	00020	/* W	group */
-#define	US_IXGRP	00010	/* X	group */
-#define	US_IRWXO	00007	/* RWX	other */
-#define	US_IROTH	00004	/* R	other */
-#define	US_IWOTH	00002	/* W	other */
-#define	US_IXOTH	00001	/* X	other */
-
-/**
- * \brief POSIX dirent
- */
-struct uffs_dirent {
-    int d_ino;							/* inode number (serial number of this object) */
-    int d_off;							/* offset to this dirent */
-    unsigned short int d_reclen;		/* length of this uffs_dirent */
-    unsigned short int d_namelen;		/* length of this d_name */
-    unsigned char d_type;				/* type of this record */
-    char d_name[256];					/* name of this object */
-};
-
-struct uffs_dirSt;
-typedef struct uffs_dirSt uffs_DIR;
-
-/**
- * \brief POSIX stat
- */
-struct uffs_stat {
-    int			st_dev;     /* ID of device containing file */
-    int			st_ino;     /* inode number */
-    int			st_mode;    /* protection */
-    int			st_nlink;   /* number of hard links */
-    int			st_uid;     /* user ID of owner */
-    int			st_gid;     /* group ID of owner */
-    int			st_rdev;    /* device ID (if special file) */
-    long		st_size;    /* total size, in bytes */
-    int			st_blksize; /* blocksize for filesystem I/O */
-    int			st_blocks;  /* number of blocks allocated */
-    unsigned int	st_atime;   /* time of last access */
-    unsigned int	st_mtime;   /* time of last modification */
-    unsigned int	st_ctime;   /* time of last status change */
-};
-
-/* POSIX complaint file system APIs */
-
-int uffs_open(const char *name, int oflag, ...);
-int uffs_close(int fd);
-int uffs_read(int fd, void *data, int len);
-int uffs_write(int fd, const void *data, int len);
-long uffs_seek(int fd, long offset, int origin);
-long uffs_tell(int fd);
-int uffs_eof(int fd);
-int uffs_flush(int fd);
-int uffs_rename(const char *old_name, const char *new_name);
-int uffs_remove(const char *name);
-int uffs_ftruncate(int fd, long remain);
-
-int uffs_mkdir(const char *name, ...);
-int uffs_rmdir(const char *name);
-
-int uffs_stat(const char *name, struct uffs_stat *buf);
-int uffs_lstat(const char *name, struct uffs_stat *buf);
-int uffs_fstat(int fd, struct uffs_stat *buf);
-
-int uffs_closedir(uffs_DIR *dirp);
-uffs_DIR * uffs_opendir(const char *path);
-struct uffs_dirent * uffs_readdir(uffs_DIR *dirp);
-
-void uffs_rewinddir(uffs_DIR *dirp);
-
-
-int uffs_get_error(void);
-int uffs_set_error(int err);
-
-int uffs_version(void);
-int uffs_format(const char *mount_point);
-
-long uffs_space_total(const char *mount_point);
-long uffs_space_used(const char *mount_point);
-long uffs_space_free(const char *mount_point);
-
-void uffs_flush_all(const char *mount_point);
-
-#ifdef __cplusplus
-}
-#endif
-#endif
-
-
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_find.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_find.h
deleted file mode 100644
index 3408cf33c6..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_find.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_find.h
- * \brief find objects under dir
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_FIND_H_
-#define _UFFS_FIND_H_
-
-#include "uffs/uffs_fs.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-typedef struct uffs_FindInfoSt {
-	uffs_Device *dev;				//!< the device to be searched
-	u16 serial;						//!< the dir serial number
-	int step;						//!< step:	0 - working on dir entries,
-									//			1 - working on file entries,
-									//			2 - stoped.
-	int hash;						//!< hash entry, internal used
-	TreeNode *work;					//!< working node, internal used.
-	int pos;						//!< current position
-} uffs_FindInfo;
-
-
-URET uffs_GetObjectInfo(uffs_Object *obj, uffs_ObjectInfo *info, int *err);
-URET uffs_FindObjectOpen(uffs_FindInfo *find_handle, uffs_Object *dir);
-URET uffs_FindObjectOpenEx(uffs_FindInfo *f, uffs_Device *dev, int dir);
-URET uffs_FindObjectFirst(uffs_ObjectInfo *info, uffs_FindInfo *find_handle);
-URET uffs_FindObjectNext(uffs_ObjectInfo *info, uffs_FindInfo *find_handle);
-URET uffs_FindObjectRewind(uffs_FindInfo *find_handle);
-URET uffs_FindObjectClose(uffs_FindInfo * find_handle);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
-
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_flash.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_flash.h
deleted file mode 100644
index 844d8ea231..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_flash.h
+++ /dev/null
@@ -1,311 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_public.h
- * \brief flash interface for UFFS
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_FLASH_H_
-#define _UFFS_FLASH_H_
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_fs.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-
-/** ECC options (uffs_StorageAttrSt.ecc_opt) */
-#define UFFS_ECC_NONE		0	//!< do not use ECC
-#define UFFS_ECC_SOFT		1	//!< UFFS calculate the ECC
-#define UFFS_ECC_HW			2	//!< Flash driver(or by hardware) calculate the ECC
-#define UFFS_ECC_HW_AUTO	3	//!< Hardware calculate the ECC and automatically write to spare.
-
-#define UFFS_ECC_OPTION_STRING \
-	{ "none", "soft", "hw", "auto" }	// index is the ecc option value.
-
-/** spare layout options (uffs_StorageAttrSt.layout_opt) */
-#define UFFS_LAYOUT_UFFS	0	//!< do layout by dev->attr information
-#define UFFS_LAYOUT_FLASH	1	//!< flash driver do the layout
-
-#define UFFS_SPARE_LAYOUT_SIZE	16	//!< maximum spare layout array size, 2 segments
-
-/** flash operation return code */
-#define UFFS_FLASH_NO_ERR		0		//!< no error
-#define UFFS_FLASH_ECC_OK		1		//!< bit-flip found, but corrected by ECC
-#define UFFS_FLASH_NOT_SEALED	2		//!< page spare area is not sealed properly (only for ReadPageWithLayout())
-#define UFFS_FLASH_IO_ERR		-1		//!< I/O error
-#define UFFS_FLASH_ECC_FAIL		-2		//!< ECC failed
-#define UFFS_FLASH_BAD_BLK		-3		//!< bad block
-#define UFFS_FLASH_CRC_ERR		-4		//!< CRC failed
-#define UFFS_FLASH_UNKNOWN_ERR	-100	//!< unkown error?
-
-#define UFFS_FLASH_HAVE_ERR(e)		((e) < 0)
-
-#if defined(CONFIG_BAD_BLOCK_POLICY_STRICT)
-# define UFFS_FLASH_IS_BAD_BLOCK(e)	\
-	((e) == UFFS_FLASH_ECC_FAIL || (e) == UFFS_FLASH_ECC_OK || (e) == UFFS_FLASH_BAD_BLK || (e) == UFFS_FLASH_CRC_ERR)
-#else
-# define UFFS_FLASH_IS_BAD_BLOCK(e)	\
-	((e) == UFFS_FLASH_ECC_FAIL || (e) == UFFS_FLASH_BAD_BLK || (e) == UFFS_FLASH_CRC_ERR)
-#endif
-
-
-/** defines for page info (data length and data sum) */
-#define UFFS_PAGE_INFO_CLEAN	0xFFFFFFFF
-#define UFFS_PAGE_INFO_IOERR	0xDEADFFFF
-#define UFFS_PAGE_GET_LEN(info)	(info & 0xFFFF)
-#define UFFS_PAGE_GET_DSUM(info) (info >> 16)
-#define UFFS_PAGE_MAKE_INFO(d_len, d_sum) ((d_sum << 16) | d_len)
-
-/** 
- * \struct uffs_StorageAttrSt
- * \brief uffs device storage attribute, provide by nand specific file
- */
-struct uffs_StorageAttrSt {
-	u32 total_blocks;		//!< total blocks in this chip
-	u16 page_data_size;		//!< page data size (physical page data size, e.g. 512)
-	u16 pages_per_block;	//!< pages per block
-	u8 spare_size;			//!< page spare size (physical page spare size, e.g. 16)
-	u8 block_status_offs;	//!< block status byte offset in spare
-	int ecc_opt;			//!< ecc option ( #UFFS_ECC_[NONE|SOFT|HW|HW_AUTO] )
-	int layout_opt;			//!< layout option (#UFFS_LAYOUT_UFFS or #UFFS_LAYOUT_FLASH)
-	int ecc_size;			//!< ecc size in bytes
-	const u8 *ecc_layout;	//!< page data ECC layout: [ofs1, size1, ofs2, size2, ..., 0xFF, 0]
-	const u8 *data_layout;	//!< spare data layout: [ofs1, size1, ofs2, size2, ..., 0xFF, 0]
-	u8 _uffs_ecc_layout[UFFS_SPARE_LAYOUT_SIZE];	//!< uffs spare ecc layout
-	u8 _uffs_data_layout[UFFS_SPARE_LAYOUT_SIZE];	//!< uffs spare data layout
-	void *_private;			//!< private data for storage attribute
-};
-
-
-/**
- * \struct uffs_FlashOpsSt 
- * \brief low level flash operations, should be implement in flash driver
- */
-struct uffs_FlashOpsSt {
-	/**
-	 * Initilize flash driver, called once when UFFS initilize partition
-	 *
-	 * \return 0 if no error, return -1 when failed.
-	 *
-	 * \note This function is optional.
-	 */
-	int (*InitFlash)(uffs_Device *dev);
-
-	/**
-	 * Release flash driver, called once when UFFS unmount partition
-	 *
-	 * \return 0 if no error, return -1 when failed.
-	 *
-	 * \note This function is optional.
-	 */
-	int (*ReleaseFlash)(uffs_Device *dev);
-
-	/**
-	 * Read a full nand page, UFFS do the layout.
-	 * 
-	 * \param[out] ecc ecc of page data
-	 *   if ecc_opt is UFFS_ECC_HW, flash driver must calculate and return ecc of data(if ecc != NULL).
-	 *   if ecc_opt is UFFS_ECC_HW_AUTO, flash driver do ecc correction before return data and flash driver do not need to return ecc.
-	 *   if ecc_opt is UFFS_ECC_NONE or UFFS_ECC_SOFT, flash driver do not need to calculate data ecc and return ecc.
-	 *
-	 * \return	#UFFS_FLASH_NO_ERR: success and/or has no flip bits.
-	 *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
-	 *			#UFFS_FLASH_ECC_FAIL: page data has flip bits and ecc correct failed (when ecc_opt == UFFS_ECC_HW_AUTO)
-	 *			#UFFS_FLASH_ECC_OK: page data has flip bits and corrected by ecc (when ecc_opt == UFFS_ECC_HW_AUTO)
-	 *          #UFFS_FLASH_BAD_BLK: if the block is a bad block (e.g., the bad block mark byte is not 0xFF).
-	 *
-	 * \note if data is NULL, do not return data; if spare is NULL, do not return spare; if both data and spare are all NULL,
-	 *       then read bad block mark and return UFFS_FLASH_BAD_BLK if bad block mark is not 0xFF.
-	 *
-	 * \note pad 0xFF for calculating ECC if len < page_data_size
-	 */
-	int (*ReadPage)(uffs_Device *dev, u32 block, u32 page, u8 *data, int data_len, u8 *ecc,
-						u8 *spare, int spare_len);
-
-	/**
-	 * Read a full nand page, driver do the layout.
-	 *
-	 * \param[out] ecc ecc of page data
-	 *   if ecc_opt is UFFS_ECC_HW, flash driver must calculate and return ecc of data(if ecc != NULL).
-	 *   if ecc_opt is UFFS_ECC_HW_AUTO, flash driver do ecc correction before return data and flash driver do not need to return ecc.
-	 *   if ecc_opt is UFFS_ECC_NONE or UFFS_ECC_SOFT, flash driver do not need calculate data ecc and return ecc.
-	 *
-	 * \param[out] ecc_store ecc store on spare area
-	 *   if ecc_opt is UFFS_ECC_NONE or UFFS_ECC_HW_AUTO, do not need to return ecc_store.
-	 *
-	 * \note flash driver must provide this function if layout_opt is UFFS_LAYOUT_FLASH.
-	 *       UFFS will use this function (if exist) prio to 'ReadPageSpare()'
-	 *
-	 * \return	#UFFS_FLASH_NO_ERR: success
-	 *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
-	 *			#UFFS_FLASH_ECC_FAIL: page data has flip bits and ecc correct failed (when ecc_opt == UFFS_ECC_HW_AUTO)
-	 *			#UFFS_FLASH_ECC_OK: page data has flip bits and corrected by ecc (when ecc_opt == UFFS_ECC_HW_AUTO)
-	 *          #UFFS_FLASH_BAD_BLK: if the block is a bad block (e.g., the bad block mark byte is not 0xFF)
-	 *			#UFFS_FLASH_NOT_SEALED: if the page spare is not sealed properly
-	 *
-	 * \note if data is NULL, do not return data; if ts is NULL, do not read tag; if both data and ts are NULL,
-	 *       then read bad block mark and return UFFS_FLASH_BAD_BLK if bad block mark is not 0xFF.
-	 *
-	 * \note flash driver DO NOT need to do ecc correction for tag,
-	 *		UFFS will take care of tag ecc.
-	 */
-	int (*ReadPageWithLayout)(uffs_Device *dev, u32 block, u32 page, u8* data, int data_len, u8 *ecc,
-									uffs_TagStore *ts, u8 *ecc_store);
-
-	/**
-	 * Write a full page, UFFS do the layout for spare area.
-	 *
-	 * \note If you have ecc_opt UFFS_ECC_HW or UFFS_ECC_HW_AUTO, you MUST implement WritePageWithLayout().
-	 *       Implement WritePage() function if you have ecc_opt UFFS_ECC_NONE or UFFS_ECC_SOFT and
-	 *       WritePageWithLayout() is not implemented.
-	 *
-	 * \note If data == NULL && spare == NULL, driver should mark this block as a 'bad block'.
-	 *
-	 * \return	#UFFS_FLASH_NO_ERR: success
-	 *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
-	 *			#UFFS_FLASH_BAD_BLK: a bad block detected.
-	 */
-	int (*WritePage)(uffs_Device *dev, u32 block, u32 page,
-							const u8 *data, int data_len, const u8 *spare, int spare_len);
-
-	/**
-	 * Write full page, flash driver do the layout for spare area.
-	 *
-	 * \note if layout_opt is UFFS_LAYOUT_FLASH or ecc_opt is UFFS_ECC_HW/UFFS_ECC_HW_AUTO, flash driver MUST implement
-	 *       this function. UFFS will use this function (if provided) prio to 'WritePage()'
-	 *
-	 * \param[in] ecc ecc of data. if ecc_opt is UFFS_ECC_SOFT and this function is implemented,
-	 *                UFFS will calculate page data ecc and pass it to WritePageWithLayout().
-	 *            if ecc_opt is UFFS_ECC_NONE/UFFS_ECC_HW/UFFS_ECC_HW_AUTO, UFFS pass ecc = NULL.
-	 *
-	 * \note If data == NULL && ts == NULL, driver should mark this block as a 'bad block'.
-	 *
-	 * \return	#UFFS_FLASH_NO_ERR: success
-	 *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
-	 *			#UFFS_FLASH_BAD_BLK: a bad block detected.
-	 */
-	int (*WritePageWithLayout)(uffs_Device *dev, u32 block, u32 page,
-							const u8 *data, int data_len, const u8 *ecc, const uffs_TagStore *ts);
-
-	/**
-	 * Check block status.
-	 *
-	 * \note flash driver may maintain a bad block table to speed up bad block checking or
-	 *		it will require one or two read spare I/O to check block status.
-	 *
-	 * \note if this function is not implented by driver, UFFS check the block_status byte in spare.
-	 *
-	 * \return 1 if it's a bad block, 0 if it's not.
-	 */
-	int (*IsBadBlock)(uffs_Device *dev, u32 block);
-
-	/**
-	 * Mark a new bad block.
-	 *
-	 * \note if this function is not implemented, UFFS mark bad block by call 'WritePage()/WritePageWithLayout()'
-	 *       with: data == NULL && spare == NULL && ts == NULL.
-	 *
-	 * \return 0 if success, otherwise return -1.
-	 */
-	int (*MarkBadBlock)(uffs_Device *dev, u32 block);
-
-	/**
-	 * Erase a block, driver MUST implement this function.
-	 *
-	 * \return	#UFFS_FLASH_NO_ERR: success
-	 *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
-	 *			#UFFS_FLASH_BAD_BLK: a bad block detected.
-	 */
-	int (*EraseBlock)(uffs_Device *dev, u32 block);
-};
-
-/** make spare from tag store and ecc */
-void uffs_FlashMakeSpare(uffs_Device *dev, const uffs_TagStore *ts, const u8 *ecc, u8* spare);
-
-/** unload tag and ecc from spare */
-void uffs_FlashUnloadSpare(uffs_Device *dev, const u8 *spare, struct uffs_TagStoreSt *ts, u8 *ecc);
-
-/** read page spare and fill to tag */
-int uffs_FlashReadPageTag(uffs_Device *dev, int block, int page, uffs_Tags *tag);
-
-/** read page data to page buf and do ECC correct */
-int uffs_FlashReadPage(uffs_Device *dev, int block, int page, uffs_Buf *buf, UBOOL skip_ecc);
-
-/** write page data and spare */
-int uffs_FlashWritePageCombine(uffs_Device *dev, int block, int page, uffs_Buf *buf, uffs_Tags *tag);
-
-/** Mark this block as bad block */
-int uffs_FlashMarkBadBlock(uffs_Device *dev, int block);
-
-/** Is this block a bad block ? */
-UBOOL uffs_FlashIsBadBlock(uffs_Device *dev, int block);
-
-/** Erase flash block */
-int uffs_FlashEraseBlock(uffs_Device *dev, int block);
-
-/* mark a clean page as 'dirty' (and 'invalid') */
-int uffs_FlashMarkDirtyPage(uffs_Device *dev, uffs_BlockInfo *bc, int page);
-
-/* check if the block pages are all clean */
-URET uffs_FlashCheckErasedBlock(uffs_Device *dev, int block);
-	
-/**
- * get page head info
- *
- * \return #UFFS_PAGE_INFO_IOERR if I/O error, otherwise return page info
- */
-u32 uffs_FlashGetPageInfo(uffs_Device *dev, int block, int page);
-
-/** load uffs_FileInfo from flash storage */
-URET uffs_FlashReadFileinfoPhy(uffs_Device *dev, int block, int page, uffs_FileInfo *info);
-
-/**
- * Initialize UFFS flash interface
- */
-URET uffs_FlashInterfaceInit(uffs_Device *dev);
-
-/**
- * Release UFFS flash interface
- */
-URET uffs_FlashInterfaceRelease(uffs_Device *dev);
-
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_fs.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_fs.h
deleted file mode 100644
index 7bda09052e..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_fs.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_fs.h
- * \brief uffs basic file operations
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_FS_H_
-#define _UFFS_FS_H_
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_core.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-/** file object */
-struct uffs_ObjectSt {
-	/******* objects manager ********/
-	int dev_lock_count;
-	int dev_get_count;
-
-	/******** init level 0 ********/
-	const char * name;					//!< pointer to the start of name, for open or create
-	u32 name_len;						//!< name length
-	u16 sum;							//!< sum of name
-	uffs_Device *dev;					//!< uffs device
-	u32 oflag;
-	u8 type;
-	u16 head_pages;						//!< data pages on file head block
-	u16 parent;
-
-	/******* init level 1 ********/
-	TreeNode *node;						//!< file entry node in tree
-	u16 serial;
-	
-	/******* output ******/
-	int err;							//!< error number
-
-	/******* current *******/
-	u32 pos;							//!< current position in file
-
-	/***** others *******/
-	UBOOL attr_loaded;					//!< attributes loaded ?
-	UBOOL open_succ;					//!< U_TRUE or U_FALSE
-
-};
-
-typedef struct uffs_ObjectSt uffs_Object;
-
-
-
-#define uffs_GetObjectErr(obj) ((obj)->err)
-#define uffs_ClearObjectErr(obj) do { (obj)->err = UENOERR; } while (0)
-
-uffs_Pool * uffs_GetObjectPool(void);
-
-URET uffs_InitObjectBuf(void);
-URET uffs_ReleaseObjectBuf(void);
-int uffs_PutAllObjectBuf(uffs_Device *dev);
-uffs_Object * uffs_GetObject(void);
-void uffs_PutObject(uffs_Object *obj);
-int uffs_GetObjectIndex(uffs_Object *obj);
-uffs_Object * uffs_GetObjectByIndex(int idx);
-
-
-/**
- * Re-initialize an object.
- * should call this function if you want to re-use an object.
- */
-URET uffs_ReInitObject(uffs_Object *obj);
-
-URET uffs_ParseObject(uffs_Object *obj, const char *name);
-
-URET uffs_CreateObjectEx(uffs_Object *obj, uffs_Device *dev, 
-								   int dir, const char *name, int name_len, int oflag);
-URET uffs_OpenObjectEx(uffs_Object *obj, uffs_Device *dev, 
-								   int dir, const char *name, int name_len, int oflag);
-
-URET uffs_OpenObject(uffs_Object *obj, const char *fullname, int oflag);
-URET uffs_TruncateObject(uffs_Object *obj, u32 remain);
-URET uffs_CreateObject(uffs_Object *obj, const char *fullname, int oflag);
-
-URET uffs_CloseObject(uffs_Object *obj);
-int uffs_WriteObject(uffs_Object *obj, const void *data, int len);
-int uffs_ReadObject(uffs_Object *obj, void *data, int len);
-long uffs_SeekObject(uffs_Object *obj, long offset, int origin);
-int uffs_GetCurOffset(uffs_Object *obj);
-int uffs_EndOfFile(uffs_Object *obj);
-URET uffs_FlushObject(uffs_Object *obj);
-
-URET uffs_RenameObject(const char *old_name, const char *new_name, int *err);
-URET uffs_DeleteObject(const char * name, int *err);
-
-int uffs_GetFreeObjectHandlers(void);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_mem.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_mem.h
deleted file mode 100644
index ad9a38f458..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_mem.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-#ifndef _UFFS_MEM_H_
-#define _UFFS_MEM_H_
-
-#include "uffs/uffs_device.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-/** uffs memory allocator */
-typedef struct uffs_memAllocatorSt {
-	URET (*init)(struct uffs_DeviceSt *dev);			//!< init memory allocator, setup buffer sizes
-	URET (*release)(struct uffs_DeviceSt *dev);			//!< release memory allocator (for dynamic memory allocation)
-	
-	void * (*malloc)(struct uffs_DeviceSt *dev, unsigned int size); //!< allocate memory (for dynamic memory allocation)
-	URET (*free)(struct uffs_DeviceSt *dev, void *p);   //!< free memory (for dynamic memory allocation)
-
-	void * blockinfo_pool_buf;			//!< block info cache buffers
-	void * pagebuf_pool_buf;			//!< page buffers
-	void * tree_nodes_pool_buf;			//!< tree nodes buffer
-	void * spare_pool_buf;				//!< spare buffers
-
-	int blockinfo_pool_size;			//!< block info cache buffers size
-	int pagebuf_pool_size;				//!< page buffers size
-	int tree_nodes_pool_size;			//!< tree nodes buffer size
-	int spare_pool_size;				//!< spare buffer pool size
-
-	uffs_Pool tree_pool;
-	uffs_Pool spare_pool;
-
-	int spare_data_size;				//!< spare size consumed by UFFS, 
-										//!< calculated by UFFS according to the layout information.
-
-	/* for static memory allocator */
-	char *buf_start;
-	int buf_size;
-	int pos;
-
-
-} uffs_MemAllocator;
-
-void uffs_MemSetupSystemAllocator(uffs_MemAllocator *allocator);
-void uffs_MemSetupStaticAllocator(uffs_MemAllocator *allocator, void *pool, int size);
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_mtb.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_mtb.h
deleted file mode 100644
index 41259e57e9..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_mtb.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_mtb.h
- * \brief mount table related stuff
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_MTB_H_
-#define _UFFS_MTB_H_
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-
-typedef struct uffs_MountTableEntrySt {
-	uffs_Device *dev;		// UFFS 'device' - core internal data structure for partition
-	int start_block;		// partition start block
-	int end_block;			// partition end block ( if < 0, reserve space form the end of storage)
-	const char *mount;		// mount point
-	struct uffs_MountTableEntrySt *prev;
-	struct uffs_MountTableEntrySt *next;
-} uffs_MountTable;
-
-/** Register mount entry, will be put at 'unmounted' list */
-int uffs_RegisterMountTable(uffs_MountTable *mtb);
-
-/** Remove mount entry from the list */
-int uffs_UnRegisterMountTable(uffs_MountTable *mtb);
-
-/** mount partition */
-int uffs_Mount(const char *mount);
-
-/** unmount parttion */
-int uffs_UnMount(const char *mount);
-
-/** get mounted entry list */
-uffs_MountTable * uffs_MtbGetMounted(void);
-
-/** get unmounted entry list */
-uffs_MountTable * uffs_MtbGetUnMounted(void);
-
-/** get matched mount point from absolute path */
-int uffs_GetMatchedMountPointSize(const char *path);			
-
-/** get uffs device from mount point */
-uffs_Device * uffs_GetDeviceFromMountPoint(const char *mount);	
-
-/** get uffs device from mount point */
-uffs_Device * uffs_GetDeviceFromMountPointEx(const char *mount, int len);	
-
-/** get mount point name from uffs device */
-const char * uffs_GetDeviceMountPoint(uffs_Device *dev);		
-
-/** down crease uffs device references by uffs_GetDeviceXXX() */
-void uffs_PutDevice(uffs_Device *dev);							
-
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_os.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_os.h
deleted file mode 100644
index b75e77bcc9..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_os.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-#ifndef _UFFS_OS_H_
-#define _UFFS_OS_H_
-
-#include <rtthread.h>
-#define RT_THREAD
-#if !defined(RT_THREAD)
-#include <stdarg.h>
-#endif
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-#define UFFS_TASK_ID_NOT_EXIST	-1
-
-typedef void * OSSEM;
-#define OSSEM_NOT_INITED	(NULL)
-
-#if !defined(RT_THREAD)
-struct uffs_DebugMsgOutputSt {
-	void (*output)(const char *msg);
-	void (*vprintf)(const char *fmt, va_list args);
-};
-
-void uffs_SetupDebugOutput(void);
-#endif
-
-/* OS specific functions */
-int uffs_SemCreate(OSSEM *sem);
-int uffs_SemWait(OSSEM sem);
-int uffs_SemSignal(OSSEM sem);
-int uffs_SemDelete(OSSEM *sem);
-
-int uffs_OSGetTaskId(void);	//get current task id
-unsigned int uffs_GetCurDateTime(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_pool.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_pool.h
deleted file mode 100644
index 78826fc246..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_pool.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_pool.h
- * \brief Fast fixed size memory pool management.
- * \author Ricky Zheng, Simon Kallweit
- */
-
-#ifndef _UFFS_POOL_H_
-#define _UFFS_POOL_H_
-
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_os.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-/**
- * \struct uffs_PoolEntrySt
- * \brief Helper type for free buffer entries.
- */
-typedef struct uffs_PoolEntrySt {
-    struct uffs_PoolEntrySt *next;
-} uffs_PoolEntry;
-
-/**
- * \struct uffs_PoolSt
- * \brief Memory pool.
- */
-typedef struct uffs_PoolSt {
-	u8 *mem;					//!< memory pool
-	u32 buf_size;				//!< size of a buffer
-	u32 num_bufs;				//!< number of buffers in the pool
-	uffs_PoolEntry *free_list;	//!< linked list of free buffers
-	OSSEM sem;					//!< buffer lock
-} uffs_Pool;
-
-URET uffs_PoolInit(uffs_Pool *pool, void *mem, u32 mem_size, u32 buf_size, u32 num_bufs);
-URET uffs_PoolRelease(uffs_Pool *pool);
-
-UBOOL uffs_PoolVerify(uffs_Pool *pool, void *p);
-
-void *uffs_PoolGet(uffs_Pool *pool);
-void *uffs_PoolGetLocked(uffs_Pool *pool);
-
-int uffs_PoolPut(uffs_Pool *pool, void *p);
-int uffs_PoolPutLocked(uffs_Pool *pool, void *p);
-
-void *uffs_PoolGetBufByIndex(uffs_Pool *pool, u32 index);
-u32 uffs_PoolGetIndex(uffs_Pool *pool, void *p);
-UBOOL uffs_PoolCheckFreeList(uffs_Pool *pool, void *p);
-
-void * uffs_PoolFindNextAllocated(uffs_Pool *pool, void *from);
-
-int uffs_PoolGetFreeCount(uffs_Pool *pool);
-int uffs_PoolPutAll(uffs_Pool *pool);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // _UFFS_POOL_H_
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_public.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_public.h
deleted file mode 100644
index 9c22004898..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_public.h
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_public.h
- * \brief public data structures for uffs
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_PUBLIC_H_
-#define _UFFS_PUBLIC_H_
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs.h"
-#include "uffs/uffs_pool.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-#ifndef ARRAY_SIZE
-# define ARRAY_SIZE(ar) (sizeof(ar) / sizeof(ar[0]))
-#endif
-
-#ifndef offsetof
-# define offsetof(T, x) ((size_t) &((T *)0)->x)
-#endif
-#ifndef container_of
-#define container_of(p, T, x) ((T *)((char *)(p) - offsetof(T,x)))
-#endif
-
-/** 
- * \def MAX_FILENAME_LENGTH 
- * \note Be careful: it's part of the physical format (see: uffs_FileInfoSt.name)
- *    !!DO NOT CHANGE IT AFTER FILE SYSTEM IS FORMATED!!
- */
-#define MAX_FILENAME_LENGTH         128
-
-/** \note 8-bits attr goes to uffs_dirent::d_type */
-#define FILE_ATTR_DIR       (1 << 7)    //!< attribute for directory
-#define FILE_ATTR_WRITE     (1 << 0)    //!< writable
-
-
-/**
- * \structure uffs_FileInfoSt
- * \brief file/dir entry info in physical storage format
- */
-struct uffs_FileInfoSt {
-    u32 attr;               //!< file/dir attribute
-    u32 create_time;
-    u32 last_modify;
-    u32 access;
-    u32 reserved;
-    u32 name_len;           //!< length of file/dir name
-    char name[MAX_FILENAME_LENGTH];
-}; //6*4 + sizeof(name) = 24 + 128 = 152 Bytes
-typedef struct uffs_FileInfoSt uffs_FileInfo;
-
-/**
- * \struct uffs_ObjectInfoSt
- * \brief object info
- */
-typedef struct uffs_ObjectInfoSt {
-    uffs_FileInfo info;
-    u32 len;                //!< length of file
-    u16 serial;             //!< object serial num
-} uffs_ObjectInfo;
-
-
-/**
- * \struct uffs_TagStoreSt
- * \brief uffs tag, 8 bytes, will be store in page spare area.
- */
-struct uffs_TagStoreSt {
-	u32 dirty:1;		//!< 0: dirty, 1: clear
-	u32 valid:1;		//!< 0: valid, 1: invalid
-	u32 type:2;			//!< block type: #UFFS_TYPE_DIR, #UFFS_TYPE_FILE, #UFFS_TYPE_DATA
-	u32 block_ts:2;		//!< time stamp of block;
-	u32 data_len:12;	//!< length of page data
-	u32 serial:14;		//!< serial number
-
-	u32 parent:10;		//!< parent's serial number
-	u32 page_id:6;		//!< page id
-	u32 reserved:4;		//!< reserved, for UFFS2
-	u32 tag_ecc:12;		//!< tag ECC
-};
-
-#define TAG_ECC_DEFAULT (0xFFF)	//!< 12-bit '1'
-
-
-/** 
- * \struct uffs_TagsSt
- */
-struct uffs_TagsSt {
-	struct uffs_TagStoreSt s;		/* store must be the first member */
-
-	/** data_sum for file or dir name */
-	u16 data_sum;
-
-	/** internal used */
-	u8 seal_byte;			//!< seal byte.
-};
-
-/** 
- * \struct uffs_MiniHeaderSt
- * \brief the mini header resides on the head of page data
- */
-struct uffs_MiniHeaderSt {
-	u8 status;
-	u8 reserved;
-	u16 crc;
-};
-
-
-/** uffs_TagsSt.dirty */
-#define TAG_VALID		0
-#define TAG_INVALID		1
-
-/** uffs_TagsSt.valid */
-#define TAG_DIRTY		0
-#define TAG_CLEAR		1
-
-#define TAG_IS_DIRTY(tag) (*((u32 *) &((tag)->s)) != 0xFFFFFFFF)	// tag is dirty if first 4 bytes not all 0xFF
-#define TAG_IS_VALID(tag) ((tag)->s.valid == TAG_VALID)
-#define TAG_IS_SEALED(tag) ((tag)->seal_byte != 0xFF)
-
-#define TAG_IS_GOOD(tag) (TAG_IS_SEALED(tag) && TAG_IS_VALID(tag))
-
-#define TAG_VALID_BIT(tag) (tag)->s.valid
-#define TAG_DIRTY_BIT(tag) (tag)->s.dirty
-#define TAG_SERIAL(tag) (tag)->s.serial
-#define TAG_PARENT(tag) (tag)->s.parent
-#define TAG_PAGE_ID(tag) (tag)->s.page_id
-#define TAG_DATA_LEN(tag) (tag)->s.data_len
-#define TAG_TYPE(tag) (tag)->s.type
-#define TAG_BLOCK_TS(tag) (tag)->s.block_ts
-#define SEAL_TAG(tag) (tag)->seal_byte = 0
-
-int uffs_GetFirstBlockTimeStamp(void);
-int uffs_GetNextBlockTimeStamp(int prev);
-UBOOL uffs_IsSrcNewerThanObj(int src, int obj);
-
-
-#include "uffs_device.h"
-
-
-
-/********************************** debug & error *************************************/
-#define UFFS_MSG_NOISY		-1
-#define UFFS_MSG_NORMAL		0
-#define UFFS_MSG_SERIOUS	1
-#define UFFS_MSG_DEAD		2
-#define UFFS_MSG_NOMSG		100
-
-#define TENDSTR "\n"
-
-#if !defined(RT_THREAD)
-struct uffs_DebugMsgOutputSt;
-URET uffs_InitDebugMessageOutput(struct uffs_DebugMsgOutputSt *ops, int msg_level);
-void uffs_DebugSetMessageLevel(int msg_level);
-
-void uffs_DebugMessage(int level, const char *prefix, const char *suffix, const char *errFmt, ...);
-void uffs_AssertCall(const char *file, int line, const char *msg, ...);
-#else
-
-#define UFFS_DBG_LEVEL  UFFS_MSG_NORMAL
-
-#ifdef CONFIG_ENABLE_UFFS_DEBUG_MSG
-#define uffs_DebugMessage(level, prefix, suffix, errFmt, ...) do { \
-	if (level >= UFFS_DBG_LEVEL) \
-		rt_kprintf(prefix errFmt suffix, ##__VA_ARGS__); \
-} while(0)
-
-#define uffs_AssertCall(file, line, msg, ...) \
-	rt_kprintf("ASSERT %s:%d - :" msg "\n", (const char *)file, (int)line, ##__VA_ARGS__)
-#else
-#define uffs_DebugMessage(level, prefix, suffix, errFmt, ...)
-#define uffs_AssertCall(file, line, msg, ...)
-#endif //CONFIG_ENABLE_UFFS_DEBUG_MSG
-#endif //RT_THREAD
-
-#ifdef _COMPILER_DO_NOT_SUPPORT_MACRO_VALIST_REPLACE_
-/* For those compilers do not support valist parameter replace in macro define */
-void uffs_Perror(int level, const char *fmt, ...);
-void uffs_PerrorRaw(int level, const char *fmt, ...);
-UBOOL uffs_Assert(UBOOL expr, const char *fmt, ...);
-#else
-
-#if !defined(RT_THREAD)
-#define uffs_Perror(level, fmt, ... ) \
-	uffs_DebugMessage(level, PFX, TENDSTR, fmt, ## __VA_ARGS__)
-
-#define uffs_PerrorRaw(level, fmt, ... ) \
-	uffs_DebugMessage(level, NULL, NULL, fmt, ## __VA_ARGS__)
-
-#else
-
-#ifdef CONFIG_ENABLE_UFFS_DEBUG_MSG
-
-#define uffs_Perror(level, fmt, ... ) do{\
-	if (level >= UFFS_DBG_LEVEL) \
-		rt_kprintf(PFX fmt TENDSTR, ##__VA_ARGS__); \
-} while(0)
-
-#define uffs_PerrorRaw(level, fmt, ... ) do{\
-	if (level >= UFFS_DBG_LEVEL) \
-		rt_kprintf(fmt, ##__VA_ARGS__); \
-} while(0)
-#else
-#define uffs_Perror(level, fmt, ... )
-#define uffs_PerrorRaw(level, fmt, ... )
-#endif // CONFIG_ENABLE_UFFS_DEBUG_MSG
-#endif // RT_THREAD
-
-#define uffs_Assert(expr, msg, ...) \
-	((expr) ? U_TRUE : (uffs_AssertCall(__FILE__, __LINE__, msg, ## __VA_ARGS__), U_FALSE))
-
-#endif //_COMPILER_DO_NOT_SUPPORT_MACRO_VALIST_REPLACE_
-
-#define uffs_Panic() \
-	do { \
-		uffs_AssertCall(__FILE__, __LINE__, "Bam !!\n"); \
-		while(1); \
-	} while(0)
-
-/********************************** NAND **********************************************/
-//NAND flash specific file must implement these interface
-URET uffs_LoadPageSpare(uffs_Device *dev, int block, int page, uffs_Tags *tag);
-URET uffs_WritePageSpare(uffs_Device *dev, int block, int page, uffs_Tags *tag);
-URET uffs_MakePageValid(uffs_Device *dev, int block, int page, uffs_Tags *tag);
-UBOOL uffs_IsBlockBad(uffs_Device *dev, uffs_BlockInfo *bc);
-
-/********************************** Public defines *****************************/
-/**
- * \def UFFS_ALL_PAGES 
- * \brief UFFS_ALL_PAGES if this value presented, that means the objects are all pages in the block
- */
-#define UFFS_ALL_PAGES (0xffff)
-
-/** 
- * \def UFFS_INVALID_PAGE
- * \brief macro for invalid page number
- */
-#define UFFS_INVALID_PAGE	(0xfffe)
-
-/** 
- * \def UFFS_INVALID_BLOCK
- * \brief macro for invalid block number
- */
-#define UFFS_INVALID_BLOCK	(0xfffe)
-
-
-URET uffs_NewBlock(uffs_Device *dev, u16 block, uffs_Tags *tag, uffs_Buf *buf);
-URET uffs_BlockRecover(uffs_Device *dev, uffs_BlockInfo *old, u16 newBlock);
-URET uffs_PageRecover(uffs_Device *dev, 
-					  uffs_BlockInfo *bc, 
-					  u16 oldPage, 
-					  u16 newPage, 
-					  uffs_Buf *buf);
-int uffs_FindFreePageInBlock(uffs_Device *dev, uffs_BlockInfo *bc);
-u16 uffs_FindBestPageInBlock(uffs_Device *dev, uffs_BlockInfo *bc, u16 page);
-u16 uffs_FindFirstFreePage(uffs_Device *dev, uffs_BlockInfo *bc, u16 pageFrom);
-u16 uffs_FindPageInBlockWithPageId(uffs_Device *dev, uffs_BlockInfo *bc, u16 page_id);
-
-u8 uffs_MakeSum8(const void *p, int len);
-u16 uffs_MakeSum16(const void *p, int len);
-URET uffs_CreateNewFile(uffs_Device *dev, u16 parent, u16 serial, uffs_BlockInfo *bc, uffs_FileInfo *fi);
-
-int uffs_GetBlockFileDataLength(uffs_Device *dev, uffs_BlockInfo *bc, u8 type);
-UBOOL uffs_IsPageErased(uffs_Device *dev, uffs_BlockInfo *bc, u16 page);
-int uffs_GetFreePagesCount(uffs_Device *dev, uffs_BlockInfo *bc);
-UBOOL uffs_IsDataBlockReguFull(uffs_Device *dev, uffs_BlockInfo *bc);
-UBOOL uffs_IsThisBlockUsed(uffs_Device *dev, uffs_BlockInfo *bc);
-
-int uffs_GetBlockTimeStamp(uffs_Device *dev, uffs_BlockInfo *bc);
-
-int uffs_GetDeviceUsed(uffs_Device *dev);
-int uffs_GetDeviceFree(uffs_Device *dev);
-int uffs_GetDeviceTotal(uffs_Device *dev);
-
-URET uffs_LoadMiniHeader(uffs_Device *dev, int block, u16 page, struct uffs_MiniHeaderSt *header);
-
-
-/* some functions from uffs_fd.c */
-void uffs_FdSignatureIncrease(void);
-URET uffs_DirEntryBufInit(void);
-URET uffs_DirEntryBufRelease(void);
-uffs_Pool * uffs_DirEntryBufGetPool(void);
-int uffs_DirEntryBufPutAll(uffs_Device *dev);
-
-
-/************************************************************************/
-/*  init functions                                                                     */
-/************************************************************************/
-URET uffs_InitDevice(uffs_Device *dev);
-URET uffs_ReleaseDevice(uffs_Device *dev);
-
-URET uffs_InitFileSystemObjects(void);
-URET uffs_ReleaseFileSystemObjects(void);
-
-
-#ifdef __cplusplus
-}
-#endif
-#endif	// _UFFS_PUBLIC_H_
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_tree.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_tree.h
deleted file mode 100644
index 6a505a839f..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_tree.h
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-#ifndef _UFFS_TREE_H_
-#define _UFFS_TREE_H_
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_pool.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_core.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-#define UFFS_TYPE_DIR		0
-#define UFFS_TYPE_FILE		1
-#define UFFS_TYPE_DATA		2
-#define UFFS_TYPE_RESV		3
-#define UFFS_TYPE_INVALID	0xFF
-
-struct uffs_NodeTypeNameMapSt {
-	int type;
-	const char *name;
-};
-
-#define UFFS_TYPE_NAME_MAP { \
-	{UFFS_TYPE_DIR, "DIR"}, \
-	{UFFS_TYPE_FILE, "FILE"}, \
-	{UFFS_TYPE_DATA, "DATA"}, \
-	{UFFS_TYPE_RESV, "RESV"}, \
-	{UFFS_TYPE_INVALID, "INVALID"} \
-}
-
-struct BlockListSt {	/* 12 bytes */
-	struct uffs_TreeNodeSt * next;
-	struct uffs_TreeNodeSt * prev;
-	u16 block;
-	union {
-		u16 serial;    /* for suspended block list */
-		u8 need_check; /* for erased block list */
-	} u;
-};
-
-struct DirhSt {		/* 8 bytes */
-	u16 checksum;	/* check sum of dir name */
-	u16 block;
-	u16 parent;
-	u16 serial;
-};
-
-
-struct FilehSt {	/* 12 bytes */
-	u16 block;
-	u16 checksum;	/* check sum of file name */
-	u16 parent;
-	u16 serial;
-	u32 len;		/* file length total */
-};
-
-struct FdataSt {	/* 10 bytes */
-	u16 block;
-	u16 parent;
-	u32 len;		/* file data length on this block */
-	u16 serial;
-};
-
-//UFFS TreeNode (14 or 16 bytes)
-typedef struct uffs_TreeNodeSt {
-	union {
-		struct BlockListSt list;
-		struct DirhSt dir;
-		struct FilehSt file;
-		struct FdataSt data;
-	} u;
-	u16 hash_next;		
-	u16 hash_prev;			
-} TreeNode;
-
-
-//TODO: UFFS2 Tree structures
-/*
-struct FdataSt {
-	u32 len;
-};
-
-struct filebSt {
-	u16 bls;		//how many blocks this file contents ...
-	u8 offs;		//the offset of this file header on FILE block
-	u8 sum;			//short sum of file name
-};
-
-//Extra data structure for storing file length information
-struct FilehSt {
-	u32 len;
-};
-
-//UFFS2 TreeNode (12 bytes)
-typedef struct uffs_TreeNodeSt {
-	u16 nextIdx;
-	u16 block;
-	u16 parent;
-	u16 serial;
-	union {
-		struct FilehSt h;
-		struct filedSt file;
-		struct data;
-	} u;
-} TreeNode;
-
-*/
-
-
-#define EMPTY_NODE 0xffff				//!< special index num of empty node.
-
-#define ROOT_DIR_SERIAL	0				//!< serial num of root dir
-#define MAX_UFFS_FSN			0x3ff	//!< maximum dir|file serial number (uffs_TagStore#parent: 10 bits)
-#define MAX_UFFS_FDN			0x3fff	//!< maximum file data block serial numbers (uffs_TagStore#serial: 14 bits)
-#define PARENT_OF_ROOT			0xfffd	//!< parent of ROOT ? kidding me ...
-#define INVALID_UFFS_SERIAL		0xffff	//!< invalid serial num
-
-#define DIR_NODE_HASH_MASK		0x1f
-#define DIR_NODE_ENTRY_LEN		(DIR_NODE_HASH_MASK + 1)
-
-#define FILE_NODE_HASH_MASK		0x3f
-#define FILE_NODE_ENTRY_LEN		(FILE_NODE_HASH_MASK + 1)
-
-#define DATA_NODE_HASH_MASK		0x1ff
-#define DATA_NODE_ENTRY_LEN		(DATA_NODE_HASH_MASK + 1)
-#define FROM_IDX(idx, pool)		((TreeNode *)uffs_PoolGetBufByIndex(pool, idx))
-#define TO_IDX(p, pool)			((u16)uffs_PoolGetIndex(pool, (void *) p))
-
-
-#define GET_FILE_HASH(serial)			(serial & FILE_NODE_HASH_MASK)
-#define GET_DIR_HASH(serial)			(serial & DIR_NODE_HASH_MASK)
-#define GET_DATA_HASH(parent, serial)	((parent + serial) & DATA_NODE_HASH_MASK)
-
-
-struct uffs_TreeSt {
-	TreeNode *erased;					//!< erased block list head
-	TreeNode *erased_tail;				//!< erased block list tail
-	TreeNode *suspend;					//!< suspended block list
-	int erased_count;					//!< erased block counter
-	TreeNode *bad;						//!< bad block list
-	int bad_count;						//!< bad block count
-	u16 dir_entry[DIR_NODE_ENTRY_LEN];
-	u16 file_entry[FILE_NODE_ENTRY_LEN];
-	u16 data_entry[DATA_NODE_ENTRY_LEN];
-	u16 max_serial;
-};
-
-
-URET uffs_TreeInit(uffs_Device *dev);
-URET uffs_TreeRelease(uffs_Device *dev);
-URET uffs_BuildTree(uffs_Device *dev);
-u16 uffs_FindFreeFsnSerial(uffs_Device *dev);
-TreeNode * uffs_TreeFindFileNode(uffs_Device *dev, u16 serial);
-TreeNode * uffs_TreeFindFileNodeWithParent(uffs_Device *dev, u16 parent);
-TreeNode * uffs_TreeFindDirNode(uffs_Device *dev, u16 serial);
-TreeNode * uffs_TreeFindDirNodeWithParent(uffs_Device *dev, u16 parent);
-TreeNode * uffs_TreeFindFileNodeByName(uffs_Device *dev, const char *name, u32 len, u16 sum, u16 parent);
-TreeNode * uffs_TreeFindDirNodeByName(uffs_Device *dev, const char *name, u32 len, u16 sum, u16 parent);
-TreeNode * uffs_TreeFindDataNode(uffs_Device *dev, u16 parent, u16 serial);
-
-
-TreeNode * uffs_TreeFindDirNodeByBlock(uffs_Device *dev, u16 block);
-TreeNode * uffs_TreeFindFileNodeByBlock(uffs_Device *dev, u16 block);
-TreeNode * uffs_TreeFindDataNodeByBlock(uffs_Device *dev, u16 block);
-TreeNode * uffs_TreeFindErasedNodeByBlock(uffs_Device *dev, u16 block);
-TreeNode * uffs_TreeFindBadNodeByBlock(uffs_Device *dev, u16 block);
-
-void uffs_TreeSuspendAdd(uffs_Device *dev, TreeNode *node);
-TreeNode * uffs_TreeFindSuspendNode(uffs_Device *dev, u16 serial);
-void uffs_TreeRemoveSuspendNode(uffs_Device *dev, TreeNode *node);
-
-#define SEARCH_REGION_DIR		1
-#define SEARCH_REGION_FILE		2
-#define SEARCH_REGION_DATA		4
-#define SEARCH_REGION_BAD		8
-#define SEARCH_REGION_ERASED	16
-TreeNode * uffs_TreeFindNodeByBlock(uffs_Device *dev, u16 block, int *region);
-
-
-
-UBOOL uffs_TreeCompareFileName(uffs_Device *dev, const char *name, u32 len, u16 sum, TreeNode *node, int type);
-
-TreeNode * uffs_TreeGetErasedNode(uffs_Device *dev);
-
-void uffs_InsertNodeToTree(uffs_Device *dev, u8 type, TreeNode *node);
-void uffs_InsertToErasedListHead(uffs_Device *dev, TreeNode *node);
-void uffs_TreeInsertToErasedListTail(uffs_Device *dev, TreeNode *node);
-void uffs_TreeInsertToErasedListTailEx(uffs_Device *dev, TreeNode *node, int need_check);
-void uffs_TreeInsertToBadBlockList(uffs_Device *dev, TreeNode *node);
-
-void uffs_BreakFromEntry(uffs_Device *dev, u8 type, TreeNode *node);
-
-void uffs_TreeSetNodeBlock(u8 type, TreeNode *node, u16 block);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-
-#endif
-
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_types.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_types.h
deleted file mode 100644
index c81b37970b..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_types.h
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-#ifndef _UFFS_TYPES_H_
-#define _UFFS_TYPES_H_
-
-#ifdef __CDT_PARSER__
-#undef __cplusplus
-#endif
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-#ifdef _UBASE_
-#include <sys/utypes.h>
-#endif
-
-/** 
- * \file uffs_types.h
- * \brief basic types used on uffs
- * \author Ricky Zheng
- */
-
-/* basic types */
-
-/** \typedef i8 
- * \brief 8 bit integer
- */
-typedef char i8;
-
-/** \typedef u8 
- * \brief 8 bit unsigned integer
- */
-typedef unsigned char u8;
-
-/** \typedef i16 
- * \brief 16 bit integer
- */
-typedef short int i16;
-
-
-/** \typedef u16
- * \brief 16 bit unsigned integer
- */
-typedef unsigned short int u16;
-
-
-/** \typedef i32
- * \brief 32 bit integer
- */
-typedef int i32;
-
-/** \typedef u32 
- * \brief 32 bit unsigned integer
- */
-typedef unsigned int u32;
-
-
-#ifndef _UBASE_
-
-#ifndef TRUE
-#define TRUE	1
-#endif
-
-#ifndef FALSE
-#define FALSE	0
-#endif
-
-/* boolean type */
-
-/** \typedef UBOOL 
- * \brief boolean type for uffs, the value would be: #U_TRUE or #U_FALSE
- */
-typedef int UBOOL;
-
-/** \def U_TRUE 
- * \brief boolean true for uffs
- */
-#define U_TRUE (TRUE)
-
-
-/** \def U_FALSE 
- * \brief boolean false for uffs
- */
-#define U_FALSE (FALSE)
-
-
-/** \typedef URET 
- * \brief return type for uffs, should be #U_FAIL or #U_SUCC
- */
-typedef int URET;
-
-/** \def U_FAIL 
- * \brief indicator of fail
- */
-#define U_FAIL -1
-
-/** \def U_SUCC 
- * \brief indicator of successful
- */
-#define U_SUCC 0
-
-/** \def IS_SUCC(ret) 
- * \brief is it successful ?
- */
-#define IS_SUCC(ret) (ret >= 0 ? U_TRUE : U_FALSE)
-
-
-/** \def IS_FAIL(ret) 
- * \brief is it fail ?
- */
-#define IS_FAIL(ret) (ret < 0 ? U_TRUE : U_FALSE)
-
-#ifndef NULL
-/** \def NULL 
- * \brief zero for pointer
- */
-#define NULL 0
-#endif
-
-#endif // _UBASE_
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_utils.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_utils.h
deleted file mode 100644
index ae03cb4ab1..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_utils.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-#ifndef _UFFS_UTILS_H_
-#define _UFFS_UTILS_H_
-
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_core.h"
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-
-//get UFFS disk version, if fail, return 0
-int uffs_GetUFFSVersion(struct uffs_DeviceSt *dev);
-
-void uffs_InitGlobalFsLock(void);
-void uffs_ReleaseGlobalFsLock(void);
-void uffs_GlobalFsLockLock(void);
-void uffs_GlobalFsLockUnlock(void);
-
-URET uffs_FormatDevice(uffs_Device *dev, UBOOL force);
-
-#ifdef __cplusplus
-}
-#endif
-
-typedef void dump_msg_cb(struct uffs_DeviceSt *dev, const char *fmt, ...);
-
-void uffs_DumpDevice(struct uffs_DeviceSt *dev, dump_msg_cb *dump);
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_version.h b/components/dfs/filesystems/uffs/src/inc/uffs/uffs_version.h
deleted file mode 100644
index 9ea3154205..0000000000
--- a/components/dfs/filesystems/uffs/src/inc/uffs/uffs_version.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-#ifndef _UFFS_VERSION_H_
-#define _UFFS_VERSION_H_
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-
-#define UFFS_VERSION		0x01030400	//"01.03.0400"
-
-const char * uffs_Version2Str(int ver);
-int uffs_GetVersion(void);
-int uffs_GetMainVersion(int ver);
-int uffs_GetMinorVersion(int ver);
-int uffs_GetTrivialVersion(int ver);
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
-
diff --git a/components/dfs/filesystems/uffs/src/platform/CMakeLists.txt b/components/dfs/filesystems/uffs/src/platform/CMakeLists.txt
deleted file mode 100644
index dd33c737e5..0000000000
--- a/components/dfs/filesystems/uffs/src/platform/CMakeLists.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-IF (UNIX)
-	SET (libplatform_SRCS posix/uffs_os.c posix/uffs_config.h)
-	INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/posix)
-ENDIF()
-
-IF (WIN32)
-	SET (libplatform_SRCS win32/uffs_os.c win32/uffs_config.h)
-	INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/win32)
-ENDIF()
-
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/inc)
-ADD_LIBRARY(platform STATIC ${libplatform_SRCS} )
-
diff --git a/components/dfs/filesystems/uffs/src/platform/posix/uffs_config.h b/components/dfs/filesystems/uffs/src/platform/posix/uffs_config.h
deleted file mode 100644
index 2f0b6992bb..0000000000
--- a/components/dfs/filesystems/uffs/src/platform/posix/uffs_config.h
+++ /dev/null
@@ -1,322 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_config.h
- * \brief basic configuration of uffs
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_CONFIG_H_
-#define _UFFS_CONFIG_H_
-
-/**
- * \def UFFS_MAX_PAGE_SIZE
- * \note maximum page size UFFS support
- */
-#define UFFS_MAX_PAGE_SIZE		2048
-
-/**
- * \def UFFS_MAX_SPARE_SIZE
- */
-#define UFFS_MAX_SPARE_SIZE ((UFFS_MAX_PAGE_SIZE / 256) * 8)
-
-/**
- * \def UFFS_MAX_ECC_SIZE
- */
-#define UFFS_MAX_ECC_SIZE  ((UFFS_MAX_PAGE_SIZE / 256) * 5)
-
-/**
- * \def MAX_CACHED_BLOCK_INFO
- * \note uffs cache the block info for opened directories and files,
- *       a practical value is 5 ~ MAX_OBJECT_HANDLE
- */
-#define MAX_CACHED_BLOCK_INFO	50
-
-/** 
- * \def MAX_PAGE_BUFFERS
- * \note the bigger value will bring better read/write performance.
- *       but few writing performance will be improved when this 
- *       value is become larger than 'max pages per block'
- */
-#define MAX_PAGE_BUFFERS		40
-
-
-/** 
- * \def CLONE_BUFFER_THRESHOLD
- * \note reserve buffers for clone. 1 or 2 should be enough.
- */
-#define CLONE_BUFFERS_THRESHOLD	2
-
-/**
- * \def MAX_SPARE_BUFFERS
- * \note spare buffers are used for lower level flash operations,
- *		 5 should be enough.
- */
-#define MAX_SPARE_BUFFERS		5
-
-
-/**
- * \def MAX_DIRTY_PAGES_IN_A_BLOCK 
- * \note this value should be between '2' and the lesser of
- *		 'max pages per block' and (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD - 1).
- *
- *       the smaller the value the frequently the buffer will be flushed.
- */
-#define MAX_DIRTY_PAGES_IN_A_BLOCK 32	
-
-/**
- * \def MAX_DIRTY_BUF_GROUPS
- */
-#define MAX_DIRTY_BUF_GROUPS	3
-
-/**
- * \def CONFIG_ENABLE_UFFS_DEBUG_MSG
- * \note Enable debug message output. You must call uffs_InitDebugMessageOutput()
- *      to initialize debug apart from enable debug feature.
- */
-#define CONFIG_ENABLE_UFFS_DEBUG_MSG
-
-/**
- * \def CONFIG_USE_GLOBAL_FS_LOCK
- * \note use global lock instead of per-device lock.
- *       this is required if you use fd APIs in multi-thread environment.
- */
-#define CONFIG_USE_GLOBAL_FS_LOCK
-
-
-/**
- * \def CONFIG_USE_PER_DEVICE_LOCK
- * \note use per-device lock.
- *		 this is required if you use fs APIs in multi-thread environment.
- */
-//#define CONFIG_USE_PER_DEVICE_LOCK
-
-
-
-/**
- * \def CONFIG_USE_STATIC_MEMORY_ALLOCATOR
- * \note uffs will use static memory allocator if this is defined.
- *       to use static memory allocator, you need to provide memory
- *       buffer when creating uffs_Device.
- *
- *       use UFFS_STATIC_BUFF_SIZE() to calculate memory buffer size.
- */
-#define CONFIG_USE_STATIC_MEMORY_ALLOCATOR 0
-
-/**
- * \def CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR
- * \note  using system platform's 'malloc' and 'free'.
- */
-#define CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR 1
-
-
-
-/** 
- * \def CONFIG_FLUSH_BUF_AFTER_WRITE
- * \note UFFS will write all data directly into flash in 
- *       each 'write' call if you enable this option.
- *       (which means lesser data lost when power failure but
- *		 poorer writing performance).
- *		 It's not recommended to open this define for normal applications.
- */
-#define CONFIG_FLUSH_BUF_AFTER_WRITE
-
-
-/**
- * \def CONFIG_UFFS_AUTO_LAYOUT_MTD_COMP
- * \note Use Linux MTD compatiable spare placement for UFFS_LAYOUT_AUTO,
- *       only valid for page data size 512 or 2048.
- */
-//#define CONFIG_UFFS_AUTO_LAYOUT_USE_MTD_SCHEME
-
-
-/** 
- * \def MAX_OBJECT_HANDLE
- * maximum number of object handle 
- */
-#define MAX_OBJECT_HANDLE	50
-#define FD_SIGNATURE_SHIFT	6	
-
-
-/**
- * \def MAX_DIR_HANDLE
- * maximum number of uffs_DIR
- */
-#define MAX_DIR_HANDLE 10	
-
-/**
- * \def MINIMUN_ERASED_BLOCK
- *  UFFS will not allow appending or creating new files when the free/erased block
- *  is lower then MINIMUN_ERASED_BLOCK.
- */
-#define MINIMUN_ERASED_BLOCK 2
-
-/**
- * \def CONFIG_CHANGE_MODIFY_TIME
- * \note If defined, closing a file which is opened for writing/appending will
- *       update the file's modify time as well. Disable this feature will save a
- *       lot of writing activities if you frequently open files for write and close it.
- */
-//#define CONFIG_CHANGE_MODIFY_TIME
-
-
-/**
- * \def CONFIG_ENABLE_BAD_BLOCK_VERIFY
- * \note allow erase and verify block marked as 'bad' when format UFFS partition.
- *		it's not recommended for most NAND flash.
- */
-#define CONFIG_ENABLE_BAD_BLOCK_VERIFY
-
-/**
- * \def CONFIG_ERASE_BLOCK_BEFORE_MARK_BAD
- * \note erase block again before mark bad block
- */
-//#define CONFIG_ERASE_BLOCK_BEFORE_MARK_BAD
-
-/**
- * \def CONFIG_PAGE_WRITE_VERIFY
- * \note verify page data after write, for extra safe data storage.
- */
-#define CONFIG_PAGE_WRITE_VERIFY
-
-/**
- * \def CONFIG_BAD_BLOCK_POLICY_STRICT
- * \note If this is enabled, UFFS will report the block as 'bad' if any bit-flips found;
- *       otherwise, UFFS report bad block only when ECC failed or reported
- *		 by low level flash driver.
- *
- * \note Enable this will ensure your data always be stored on completely good blocks.
- */
-#define CONFIG_BAD_BLOCK_POLICY_STRICT
-
-
-/**
- * \def CONFIG_ENABLE_PAGE_DATA_CRC
- * \note If this is enabled, UFFS save page data CRC16 sum in mini header,
- *       it provides extra protection for data integrity.
- */
-#define CONFIG_ENABLE_PAGE_DATA_CRC
-
-
-/** micros for calculating buffer sizes */
-
-/**
- *	\def UFFS_BLOCK_INFO_BUFFER_SIZE
- *	\brief calculate memory bytes for block info caches
- */
-#define UFFS_BLOCK_INFO_BUFFER_SIZE(n_pages_per_block)	\
-			(											\
-				(										\
-					sizeof(uffs_BlockInfo) +			\
-					sizeof(uffs_PageSpare) * n_pages_per_block \
-				 ) * MAX_CACHED_BLOCK_INFO				\
-			)
-
-/**
- *	\def UFFS_PAGE_BUFFER_SIZE
- *	\brief calculate memory bytes for page buffers
- */
-#define UFFS_PAGE_BUFFER_SIZE(n_page_size)	\
-			(								\
-				(							\
-					sizeof(uffs_Buf) + n_page_size	\
-				) * MAX_PAGE_BUFFERS		\
-			)
-
-/**
- *	\def UFFS_TREE_BUFFER_SIZE
- *	\brief calculate memory bytes for tree nodes
- */
-#define UFFS_TREE_BUFFER_SIZE(n_blocks) (sizeof(TreeNode) * n_blocks)
-
-
-#define UFFS_SPARE_BUFFER_SIZE (MAX_SPARE_BUFFERS * UFFS_MAX_SPARE_SIZE)
-
-
-/**
- *	\def UFFS_STATIC_BUFF_SIZE
- *	\brief calculate total memory usage of uffs system
- */
-#define UFFS_STATIC_BUFF_SIZE(n_pages_per_block, n_page_size, n_blocks) \
-			(		\
-				UFFS_BLOCK_INFO_BUFFER_SIZE(n_pages_per_block) + \
-				UFFS_PAGE_BUFFER_SIZE(n_page_size) + \
-				UFFS_TREE_BUFFER_SIZE(n_blocks) + \
-				UFFS_SPARE_BUFFER_SIZE \
-			 )
-
-
-
-/* config check */
-#if (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD) < 3
-#error "MAX_PAGE_BUFFERS is too small"
-#endif
-
-#if (MAX_DIRTY_PAGES_IN_A_BLOCK < 2)
-#error "MAX_DIRTY_PAGES_IN_A_BLOCK should >= 2"
-#endif
-
-#if (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD - 1 < MAX_DIRTY_PAGES_IN_A_BLOCK)
-#error "MAX_DIRTY_PAGES_IN_A_BLOCK should < (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD)"
-#endif
-
-#if defined(CONFIG_PAGE_WRITE_VERIFY) && (CLONE_BUFFERS_THRESHOLD < 2)
-#error "CLONE_BUFFERS_THRESHOLD should >= 2 when CONFIG_PAGE_WRITE_VERIFY is enabled."
-#endif
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR + CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR > 1
-#error "Please enable ONLY one memory allocator"
-#endif
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR + CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR == 0
-#error "Please enable ONE of memory allocators"
-#endif
-
-#if defined(CONFIG_USE_GLOBAL_FS_LOCK) && defined(CONFIG_USE_PER_DEVICE_LOCK)
-#error "enable either CONFIG_USE_GLOBAL_FS_LOCK or CONFIG_USE_PER_DEVICE_LOCK, not both"
-#endif
-
-#if (MAX_OBJECT_HANDLE > (1 << FD_SIGNATURE_SHIFT))
-#error "Please increase FD_SIGNATURE_SHIFT !"
-#endif
-
-#ifdef WIN32
-# pragma warning(disable : 4996)
-# pragma warning(disable : 4244)
-# pragma warning(disable : 4214)
-# pragma warning(disable : 4127)
-# pragma warning(disable : 4389)
-# pragma warning(disable : 4100)
-#endif
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/platform/posix/uffs_os.c b/components/dfs/filesystems/uffs/src/platform/posix/uffs_os.c
deleted file mode 100644
index 170c457ad4..0000000000
--- a/components/dfs/filesystems/uffs/src/platform/posix/uffs_os.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_os_posix.c
- * \brief Emulation on POSIX host. This is just a dumb implementation, does not really create semaphores.
- * \author Ricky Zheng
- */
-
-#include "uffs_config.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-#include <memory.h>
-#include <stdlib.h>
-#include <time.h>
-#include <stdio.h>
-#include <pthread.h>
-
-#define PFX "os  : "
-
-int uffs_SemCreate(OSSEM *sem)
-{
-	pthread_mutex_t *mutex = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t));
-	int ret = -1;
-
-	if (mutex) {
-		ret = pthread_mutex_init(mutex, NULL /* default attr */);
-		if (ret == 0) {
-			*sem = (OSSEM *)mutex;			
-		}
-		else {
-			free(mutex);
-		}
-	}
-	
-	return ret;
-}
-
-int uffs_SemWait(OSSEM sem)
-{
-	return pthread_mutex_lock((pthread_mutex_t *)sem);
-}
-
-int uffs_SemSignal(OSSEM sem)
-{
-	return pthread_mutex_unlock((pthread_mutex_t *)sem);;
-}
-
-int uffs_SemDelete(OSSEM *sem)
-{
-	pthread_mutex_t *mutex = (pthread_mutex_t *) (*sem);
-	int ret = -1;
-	
-	if (mutex) {
-		ret = pthread_mutex_destroy(mutex);
-		if (ret == 0) {
-			free(mutex);
-			*sem = 0;
-		}			
-	}
-	return ret;
-}
-
-int uffs_OSGetTaskId(void)
-{
-	//TODO: ... return current task ID ...
-	return 0;
-}
-
-unsigned int uffs_GetCurDateTime(void)
-{
-	// FIXME: return system time, please modify this for your platform ! 
-	//			or just return 0 if you don't care about file time.
-	time_t tvalue;
-
-	tvalue = time(NULL);
-	
-	return (unsigned int)tvalue;
-}
-
-#if CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR > 0
-static void * sys_malloc(struct uffs_DeviceSt *dev, unsigned int size)
-{
-	dev = dev;
-	uffs_Perror(UFFS_MSG_NORMAL, "system memory alloc %d bytes", size);
-	return malloc(size);
-}
-
-static URET sys_free(struct uffs_DeviceSt *dev, void *p)
-{
-	dev = dev;
-	free(p);
-	return U_SUCC;
-}
-
-void uffs_MemSetupSystemAllocator(uffs_MemAllocator *allocator)
-{
-	allocator->malloc = sys_malloc;
-	allocator->free = sys_free;
-}
-#endif
-
-
-/* debug message output throught 'printf' */
-static void output_dbg_msg(const char *msg);
-static struct uffs_DebugMsgOutputSt m_dbg_ops = {
-	output_dbg_msg,
-	NULL,
-};
-
-static void output_dbg_msg(const char *msg)
-{
-	printf("%s", msg);
-}
-
-void uffs_SetupDebugOutput(void)
-{
-	uffs_InitDebugMessageOutput(&m_dbg_ops, UFFS_MSG_NOISY);
-}
diff --git a/components/dfs/filesystems/uffs/src/platform/win32/uffs_config.h b/components/dfs/filesystems/uffs/src/platform/win32/uffs_config.h
deleted file mode 100644
index 3f9daa9cd4..0000000000
--- a/components/dfs/filesystems/uffs/src/platform/win32/uffs_config.h
+++ /dev/null
@@ -1,317 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_config.h
- * \brief basic configuration of uffs
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_CONFIG_H_
-#define _UFFS_CONFIG_H_
-
-/**
- * \def UFFS_MAX_PAGE_SIZE
- * \note maximum page size UFFS support
- */
-#define UFFS_MAX_PAGE_SIZE		2048
-
-/**
- * \def UFFS_MAX_SPARE_SIZE
- */
-#define UFFS_MAX_SPARE_SIZE ((UFFS_MAX_PAGE_SIZE / 256) * 8)
-
-/**
- * \def UFFS_MAX_ECC_SIZE
- */
-#define UFFS_MAX_ECC_SIZE  ((UFFS_MAX_PAGE_SIZE / 256) * 5)
-
-/**
- * \def MAX_CACHED_BLOCK_INFO
- * \note uffs cache the block info for opened directories and files,
- *       a practical value is 5 ~ MAX_OBJECT_HANDLE
- */
-#define MAX_CACHED_BLOCK_INFO	50
-
-/** 
- * \def MAX_PAGE_BUFFERS
- * \note the bigger value will bring better read/write performance.
- *       but few writing performance will be improved when this 
- *       value is become larger than 'max pages per block'
- */
-#define MAX_PAGE_BUFFERS		40
-
-
-/** 
- * \def CLONE_BUFFER_THRESHOLD
- * \note reserve buffers for clone. 1 or 2 should be enough.
- */
-#define CLONE_BUFFERS_THRESHOLD	2
-
-/**
- * \def MAX_SPARE_BUFFERS
- * \note spare buffers are used for lower level flash operations,
- *		 5 should be enough.
- */
-#define MAX_SPARE_BUFFERS		5
-
-
-/**
- * \def MAX_DIRTY_PAGES_IN_A_BLOCK 
- * \note this value should be between '2' and the lesser of
- *		 'max pages per block' and (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD - 1).
- *
- *       the smaller the value the frequently the buffer will be flushed.
- */
-#define MAX_DIRTY_PAGES_IN_A_BLOCK	32
-
-/**
- * \def CONFIG_ENABLE_UFFS_DEBUG_MSG
- * \note Enable debug message output. You must call uffs_InitDebugMessageOutput()
- *      to initialize debug apart from enable debug feature.
- */
-#define CONFIG_ENABLE_UFFS_DEBUG_MSG
-
-/**
- * \def CONFIG_USE_GLOBAL_FS_LOCK
- * \note use global lock instead of per-device lock.
- *       this is required if you use fd APIs in multi-thread environment.
- */
-#define CONFIG_USE_GLOBAL_FS_LOCK
-
-
-/**
- * \def CONFIG_USE_PER_DEVICE_LOCK
- * \note use per-device lock.
- *		 this is required if you use fs APIs in multi-thread environment.
- */
-//#define CONFIG_USE_PER_DEVICE_LOCK
-
-
-
-/**
- * \def CONFIG_USE_STATIC_MEMORY_ALLOCATOR
- * \note uffs will use static memory allocator if this is defined.
- *       to use static memory allocator, you need to provide memory
- *       buffer when creating uffs_Device.
- *
- *       use UFFS_STATIC_BUFF_SIZE() to calculate memory buffer size.
- */
-#define CONFIG_USE_STATIC_MEMORY_ALLOCATOR 0
-
-/**
- * \def CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR
- * \note  using system platform's 'malloc' and 'free'.
- */
-#define CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR 1
-
-
-
-/** 
- * \def CONFIG_FLUSH_BUF_AFTER_WRITE
- * \note UFFS will write all data directly into flash in 
- *       each 'write' call if you enable this option.
- *       (which means lesser data lost when power failure but
- *		 poorer writing performance).
- *		 It's not recommended to open this define for normal applications.
- */
-//#define CONFIG_FLUSH_BUF_AFTER_WRITE
-
-
-/**
- * \def CONFIG_UFFS_AUTO_LAYOUT_MTD_COMP
- * \note Use Linux MTD compatiable spare placement for UFFS_LAYOUT_AUTO,
- *       only valid for page data size 512 or 2048.
- */
-//#define CONFIG_UFFS_AUTO_LAYOUT_USE_MTD_SCHEME
-
-
-/** 
- * \def MAX_OBJECT_HANDLE
- * maximum number of object handle 
- */
-#define MAX_OBJECT_HANDLE	50
-#define FD_SIGNATURE_SHIFT	6
-
-
-/**
- * \def MAX_DIR_HANDLE
- * maximum number of uffs_DIR
- */
-#define MAX_DIR_HANDLE	10
-
-/**
- * \def MINIMUN_ERASED_BLOCK
- *  UFFS will not allow appending or creating new files when the free/erased block
- *  is lower then MINIMUN_ERASED_BLOCK.
- */
-#define MINIMUN_ERASED_BLOCK 2
-
-/**
- * \def CONFIG_CHANGE_MODIFY_TIME
- * \note If defined, closing a file which is opened for writing/appending will
- *       update the file's modify time as well. Disable this feature will save a
- *       lot of writing activities if you frequently open files for write and close it.
- */
-//#define CONFIG_CHANGE_MODIFY_TIME
-
-
-/**
- * \def CONFIG_ENABLE_BAD_BLOCK_VERIFY
- * \note allow erase and verify block marked as 'bad' when format UFFS partition.
- *		it's not recommended for most NAND flash.
- */
-#define CONFIG_ENABLE_BAD_BLOCK_VERIFY
-
-/**
- * \def CONFIG_ERASE_BLOCK_BEFORE_MARK_BAD
- * \note erase block again before mark bad block
- */
-//#define CONFIG_ERASE_BLOCK_BEFORE_MARK_BAD
-
-/**
- * \def CONFIG_PAGE_WRITE_VERIFY
- * \note verify page data after write, for extra safe data storage.
- */
-#define CONFIG_PAGE_WRITE_VERIFY
-
-/**
- * \def CONFIG_BAD_BLOCK_POLICY_STRICT
- * \note If this is enabled, UFFS will report the block as 'bad' if any bit-flips found;
- *       otherwise, UFFS report bad block only when ECC failed or reported
- *		 by low level flash driver.
- *
- * \note Enable this will ensure your data always be stored on completely good blocks.
- */
-#define CONFIG_BAD_BLOCK_POLICY_STRICT
-
-
-/**
- * \def CONFIG_ENABLE_PAGE_DATA_CRC
- * \note If this is enabled, UFFS save page data CRC16 sum in mini header,
- *       it provides extra protection for data integrity.
- */
-//#define CONFIG_ENABLE_PAGE_DATA_CRC
-
-
-/** micros for calculating buffer sizes */
-
-/**
- *	\def UFFS_BLOCK_INFO_BUFFER_SIZE
- *	\brief calculate memory bytes for block info caches
- */
-#define UFFS_BLOCK_INFO_BUFFER_SIZE(n_pages_per_block)	\
-			(											\
-				(										\
-					sizeof(uffs_BlockInfo) +			\
-					sizeof(uffs_PageSpare) * n_pages_per_block \
-				 ) * MAX_CACHED_BLOCK_INFO				\
-			)
-
-/**
- *	\def UFFS_PAGE_BUFFER_SIZE
- *	\brief calculate memory bytes for page buffers
- */
-#define UFFS_PAGE_BUFFER_SIZE(n_page_size)	\
-			(								\
-				(							\
-					sizeof(uffs_Buf) + n_page_size	\
-				) * MAX_PAGE_BUFFERS		\
-			)
-
-/**
- *	\def UFFS_TREE_BUFFER_SIZE
- *	\brief calculate memory bytes for tree nodes
- */
-#define UFFS_TREE_BUFFER_SIZE(n_blocks) (sizeof(TreeNode) * n_blocks)
-
-
-#define UFFS_SPARE_BUFFER_SIZE (MAX_SPARE_BUFFERS * UFFS_MAX_SPARE_SIZE)
-
-
-/**
- *	\def UFFS_STATIC_BUFF_SIZE
- *	\brief calculate total memory usage of uffs system
- */
-#define UFFS_STATIC_BUFF_SIZE(n_pages_per_block, n_page_size, n_blocks) \
-			(		\
-				UFFS_BLOCK_INFO_BUFFER_SIZE(n_pages_per_block) + \
-				UFFS_PAGE_BUFFER_SIZE(n_page_size) + \
-				UFFS_TREE_BUFFER_SIZE(n_blocks) + \
-				UFFS_SPARE_BUFFER_SIZE \
-			 )
-
-
-
-/* config check */
-#if (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD) < 3
-#error "MAX_PAGE_BUFFERS is too small"
-#endif
-
-#if (MAX_DIRTY_PAGES_IN_A_BLOCK < 2)
-#error "MAX_DIRTY_PAGES_IN_A_BLOCK should >= 2"
-#endif
-
-#if (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD - 1 < MAX_DIRTY_PAGES_IN_A_BLOCK)
-#error "MAX_DIRTY_PAGES_IN_A_BLOCK should < (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD)"
-#endif
-
-#if defined(CONFIG_PAGE_WRITE_VERIFY) && (CLONE_BUFFERS_THRESHOLD < 2)
-#error "CLONE_BUFFERS_THRESHOLD should >= 2 when CONFIG_PAGE_WRITE_VERIFY is enabled."
-#endif
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR + CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR > 1
-#error "Please enable ONLY one memory allocator"
-#endif
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR + CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR == 0
-#error "Please enable ONE of memory allocators"
-#endif
-
-#if defined(CONFIG_USE_GLOBAL_FS_LOCK) && defined(CONFIG_USE_PER_DEVICE_LOCK)
-#error "enable either CONFIG_USE_GLOBAL_FS_LOCK or CONFIG_USE_PER_DEVICE_LOCK, not both"
-#endif
-
-#if (MAX_OBJECT_HANDLE > (1 << FD_SIGNATURE_SHIFT))
-#error "Please increase FD_SIGNATURE_SHIFT !"
-#endif
-
-#ifdef WIN32
-# pragma warning(disable : 4996)
-# pragma warning(disable : 4244)
-# pragma warning(disable : 4214)
-# pragma warning(disable : 4127)
-# pragma warning(disable : 4389)
-# pragma warning(disable : 4100)
-#endif
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/platform/win32/uffs_os.c b/components/dfs/filesystems/uffs/src/platform/win32/uffs_os.c
deleted file mode 100644
index d05c44abb9..0000000000
--- a/components/dfs/filesystems/uffs/src/platform/win32/uffs_os.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_os.c
- * \brief Emulation on win32 host
- * \author Ricky Zheng
- */
-
-#include "uffs_config.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-#include <memory.h>
-#include <stdlib.h>
-#include <time.h>
-#include <stdio.h>
-#include <windows.h>
-
-#define PFX "os  : "
-
-int uffs_SemCreate(OSSEM *sem)
-{
-	HANDLE mutex = CreateMutex( 
-        NULL,		// default security attributes
-        FALSE,		// initially not owned
-        NULL);		// unnamed mutex
-
-	if (mutex == NULL) {
-		printf("Create mutex failed !\n");
-		return -1;
-	}
-	else {
-		*sem = (OSSEM)mutex;
-	}
-
-	return 0;
-}
-
-int uffs_SemWait(OSSEM sem)
-{
-	DWORD result;
-
-	result =  WaitForSingleObject( 
-            (HANDLE)sem,    // handle to mutex
-            INFINITE);		// no time-out interval
-
-	return result == WAIT_ABANDONED ? -1 : 0;
-}
-
-int uffs_SemSignal(OSSEM sem)
-{
-	return ReleaseMutex((HANDLE)sem) ? 0 : -1;
-}
-
-int uffs_SemDelete(OSSEM *sem)
-{
-	if (CloseHandle((HANDLE)(*sem))) {
-		*sem = 0;
-		return 0;
-	}
-	else
-		return -1;
-}
-
-int uffs_OSGetTaskId(void)
-{
-	return 0;
-}
-
-unsigned int uffs_GetCurDateTime(void)
-{
-	// FIXME: return system time, please modify this for your platform ! 
-	//			or just return 0 if you don't care about file time.
-	time_t tvalue;
-
-	tvalue = time(NULL);
-	
-	return (unsigned int)tvalue;
-}
-
-#if CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR > 0
-static void * sys_malloc(struct uffs_DeviceSt *dev, unsigned int size)
-{
-	dev = dev;
-	uffs_Perror(UFFS_MSG_NORMAL, "system memory alloc %d bytes", size);
-	return malloc(size);
-}
-
-static URET sys_free(struct uffs_DeviceSt *dev, void *p)
-{
-	dev = dev;
-	free(p);
-	return U_SUCC;
-}
-
-void uffs_MemSetupSystemAllocator(uffs_MemAllocator *allocator)
-{
-	allocator->malloc = sys_malloc;
-	allocator->free = sys_free;
-}
-#endif
-
-
-/* debug message output throught 'printf' */
-static void output_dbg_msg(const char *msg);
-static struct uffs_DebugMsgOutputSt m_dbg_ops = {
-	output_dbg_msg,
-	NULL,
-};
-
-static void output_dbg_msg(const char *msg)
-{
-	printf("%s", msg);
-}
-
-void uffs_SetupDebugOutput(void)
-{
-	uffs_InitDebugMessageOutput(&m_dbg_ops, UFFS_MSG_NOISY);
-}
diff --git a/components/dfs/filesystems/uffs/src/uffs/CMakeLists.txt b/components/dfs/filesystems/uffs/src/uffs/CMakeLists.txt
deleted file mode 100644
index 24b726b8cb..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/CMakeLists.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-SET (libuffs_SRCS 
-		uffs_badblock.c 
-		uffs_blockinfo.c 
-		uffs_buf.c 
-		uffs_debug.c 
-		uffs_device.c 
-		uffs_ecc.c 
-		uffs_fd.c 
-		uffs_fs.c 
-		uffs_init.c 
-		uffs_mem.c 
-		uffs_pool.c 
-		uffs_public.c 
-		uffs_tree.c 
-		uffs_utils.c
-		uffs_mtb.c
-		uffs_find.c
-		uffs_flash.c
-		uffs_version.c
-		uffs_crc.c
-	 )
-
-SET (HDR ${uffs_SOURCE_DIR}/src/inc/uffs)
-
-SET (libuffs_HEADS 
-		${HDR}/uffs.h
-		${HDR}/uffs_badblock.h
-		${HDR}/uffs_blockinfo.h
-		${HDR}/uffs_buf.h 
-		${HDR}/uffs_core.h 
-		${HDR}/uffs_device.h
-		${HDR}/uffs_ecc.h
-		${HDR}/uffs_fd.h
-		${HDR}/uffs_fs.h
-		${HDR}/uffs_mem.h
-        ${HDR}/uffs_os.h
-        ${HDR}/uffs_pool.h
-        ${HDR}/uffs_public.h
-		${HDR}/uffs_tree.h
-		${HDR}/uffs_types.h
-		${HDR}/uffs_utils.h
-		${HDR}/uffs_mtb.h
-		${HDR}/uffs_find.h
-		${HDR}/uffs_flash.h
-		${HDR}/uffs_version.h
-		${HDR}/uffs_crc.h
-   )
-
-IF (UNIX)
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/posix)
-ENDIF()
-
-IF (WIN32)
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/win32)
-ENDIF()
-
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/inc)
-
-ADD_LIBRARY( uffs STATIC ${libuffs_SRCS} ${libuffs_HEADS} )
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_badblock.c b/components/dfs/filesystems/uffs/src/uffs/uffs_badblock.c
deleted file mode 100644
index 6145b9e547..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_badblock.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_badblock.c
- * \brief bad block checking and recovering
- * \author Ricky Zheng, created in 13th Jun, 2005
- */
-#include "uffs_config.h"
-#include "uffs/uffs_fs.h"
-#include "uffs/uffs_ecc.h"
-#include "uffs/uffs_badblock.h"
-#include <string.h>
-
-#define PFX "bbl : "
-
-void uffs_BadBlockInit(uffs_Device *dev)
-{
-	dev->bad.block = UFFS_INVALID_BLOCK;
-}
-
-
-/** 
- * \brief process bad block: erase bad block, mark it as 'bad'
- *			and put the node to bad block list.
- * \param[in] dev uffs device
- * \param[in] node bad block tree node
- *			(before the block turn 'bad', it must belong to something ...)
- */
-void uffs_BadBlockProcess(uffs_Device *dev, TreeNode *node)
-{
-	if (HAVE_BADBLOCK(dev)) {
-		// mark the bad block
-		uffs_FlashMarkBadBlock(dev, dev->bad.block);
-
-		// and put it into bad block list
-		if (node != NULL)
-			uffs_TreeInsertToBadBlockList(dev, node);
-
-		//clear bad block mark.
-		dev->bad.block = UFFS_INVALID_BLOCK;
-
-	}
-}
-
-/** 
- * \brief process bad block and put the node in 'suspend' list.
- * \param[in] dev uffs device
- * \param[in] node bad block tree node
- */
-void uffs_BadBlockProcessSuspend(uffs_Device *dev, TreeNode *node)
-{
-	if (HAVE_BADBLOCK(dev)) {
-		// mark the bad block
-		uffs_FlashMarkBadBlock(dev, dev->bad.block);
-
-		// and put it into bad block list
-		if (node != NULL)
-			uffs_TreeSuspendAdd(dev, node);
-
-		//clear bad block mark.
-		dev->bad.block = UFFS_INVALID_BLOCK;
-	}
-}
-
-/** 
- * \brief recover bad block
- * \param[in] dev uffs device
- */
-void uffs_BadBlockRecover(uffs_Device *dev)
-{
-	TreeNode *good, *bad;
-	uffs_Buf *buf;
-	u16 i;
-	u16 page;
-	uffs_BlockInfo *bc = NULL;
-	uffs_Tags *tag;
-	uffs_Tags newTag;
-	UBOOL succRecov;
-	UBOOL goodBlockIsDirty = U_FALSE;
-	int ret;
-	int region;
-	u8 type;
-	
-	if (dev->bad.block == UFFS_INVALID_BLOCK)
-		return;
-
-	// pick up an erased good block
-	good = uffs_TreeGetErasedNode(dev);
-	if (good == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "no free block to replace bad block!");
-		return;
-	}
-
-	//recover block
-	bc = uffs_BlockInfoGet(dev, dev->bad.block);
-	
-	if (bc == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "can't get bad block info");
-		return;
-	}
-
-	succRecov = U_TRUE;
-	for (i = 0; i < dev->attr->pages_per_block; i++) {
-		page = uffs_FindPageInBlockWithPageId(dev, bc, i);
-		if (page == UFFS_INVALID_PAGE) {
-			break;  //end of last valid page, normal break
-		}
-		page = uffs_FindBestPageInBlock(dev, bc, page);
-		if (page == UFFS_INVALID_PAGE) {
-			// got an invalid page ? it's bad block anyway ...
-			uffs_Perror(UFFS_MSG_SERIOUS, "bad block recover (block %d) not finished", bc->block);
-			break;
-		}
-		tag = GET_TAG(bc, page);
-		buf = uffs_BufClone(dev, NULL);
-		if (buf == NULL) {	
-			uffs_Perror(UFFS_MSG_SERIOUS, "Can't clone a new buf!");
-			succRecov = U_FALSE;
-			break;
-		}
-		//NOTE: since this is a bad block, we can't guarantee the data is ECC ok,
-		//		so just load data even ECC is not OK.
-		ret = uffs_LoadPhyDataToBufEccUnCare(dev, buf, bc->block, page);
-		if (ret == U_FAIL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "I/O error ?");
-			uffs_BufFreeClone(dev, buf);
-			succRecov = U_FALSE;
-			break;
-		}
-		buf->data_len = TAG_DATA_LEN(tag);
-		if (buf->data_len > dev->com.pg_data_size) {
-			uffs_Perror(UFFS_MSG_NOISY, "data length over flow!!!");
-			buf->data_len = dev->com.pg_data_size;
-		}
-
-		buf->parent = TAG_PARENT(tag);
-		buf->serial = TAG_SERIAL(tag);
-		buf->type = TAG_TYPE(tag);
-		buf->page_id = TAG_PAGE_ID(tag);
-		
-		// new tag copied from old tag, and increase time-stamp.
-		newTag = *tag;
-		TAG_BLOCK_TS(&newTag) = uffs_GetNextBlockTimeStamp(TAG_BLOCK_TS(tag));
-
-		ret = uffs_FlashWritePageCombine(dev, good->u.list.block, i, buf, &newTag);
-
-		goodBlockIsDirty = U_TRUE;
-		uffs_BufFreeClone(dev, buf);
-
-		if (ret == UFFS_FLASH_IO_ERR) {
-			uffs_Perror(UFFS_MSG_NORMAL, "I/O error ?");
-			succRecov = U_FALSE;
-			break;
-		}
-	}
-
-
-	if (succRecov == U_TRUE) {
-		// successful recover bad block, so need to mark bad block,
-		// and replace with good one
-
-		region = SEARCH_REGION_DIR|SEARCH_REGION_FILE|SEARCH_REGION_DATA;
-		bad = uffs_TreeFindNodeByBlock(dev, dev->bad.block, &region);
-		if (bad != NULL) {
-			switch (region) {
-			case SEARCH_REGION_DIR:
-				bad->u.dir.block = good->u.list.block;
-				type = UFFS_TYPE_DIR;
-				break;
-			case SEARCH_REGION_FILE:
-				bad->u.file.block = good->u.list.block;
-				type = UFFS_TYPE_FILE;
-				break;
-			case SEARCH_REGION_DATA:
-				bad->u.data.block = good->u.list.block;
-				type = UFFS_TYPE_DATA;
-			}
-			
-			//from now, the 'bad' is actually good block :)))
-			uffs_Perror(UFFS_MSG_NOISY,
-						"new bad block %d found, and replaced by %d, type %d!",
-						dev->bad.block, good->u.list.block, type);
-			uffs_BlockInfoExpire(dev, bc, UFFS_ALL_PAGES);
-			//we reuse the 'good' node as bad block node, and process the bad block.
-			good->u.list.block = dev->bad.block;
-			uffs_BadBlockProcess(dev, good);
-		}
-		else {
-			uffs_Perror(UFFS_MSG_SERIOUS,
-						"can't find the reported bad block(%d) in the tree???",
-						dev->bad.block);
-			if (goodBlockIsDirty == U_TRUE)
-				dev->ops->EraseBlock(dev, good->u.list.block);
-			uffs_TreeInsertToErasedListTail(dev, good);
-		}
-	}
-	else {
-		if (goodBlockIsDirty == U_TRUE)
-			dev->ops->EraseBlock(dev, good->u.list.block);
-		uffs_TreeInsertToErasedListTail(dev, good); //put back to erased list
-	}
-
-	uffs_BlockInfoPut(dev, bc);
-
-}
-
-
-/** put a new block to the bad block waiting list */
-void uffs_BadBlockAdd(uffs_Device *dev, int block)
-{
-	if (dev->bad.block == block)
-		return;
-
-	if (dev->bad.block != UFFS_INVALID_BLOCK)
-		uffs_Perror(UFFS_MSG_SERIOUS, "Can't add more then one bad block !");
-	else
-		dev->bad.block = block;
-}
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_blockinfo.c b/components/dfs/filesystems/uffs/src/uffs/uffs_blockinfo.c
deleted file mode 100644
index f80bc6113e..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_blockinfo.c
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_blockinfo.c
- * \brief block information cache system manipulations
- * \author Ricky Zheng, created 10th May, 2005
- */
-
-#include "uffs_config.h"
-#include "uffs/uffs_blockinfo.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_os.h"
-
-#include <string.h>
-
-#define PFX "bc  : "
-
-#define UFFS_CLONE_BLOCK_INFO_NEXT ((uffs_BlockInfo *)(-2))
-
-/**
- * \brief before block info cache is enable,
- *			this function should be called to initialize it
- *
- * \param[in] dev uffs device
- * \param[in] maxCachedBlocks maximum cache buffers to be allocated
- * \return result of initialization
- *		\retval U_SUCC successful
- *		\retval U_FAIL failed
- */
-URET uffs_BlockInfoInitCache(uffs_Device *dev, int maxCachedBlocks)
-{
-	uffs_BlockInfo * blockInfos = NULL;
-	uffs_PageSpare * pageSpares = NULL;
-	void * buf = NULL;
-	uffs_BlockInfo *work = NULL;
-	int size, i, j;
-
-	if (dev->bc.head != NULL) {
-		uffs_Perror(UFFS_MSG_NOISY,
-					"block info cache has been inited already, "
-					"now release it first.");
-		uffs_BlockInfoReleaseCache(dev);
-	}
-
-	size = ( 
-			sizeof(uffs_BlockInfo) +
-			sizeof(uffs_PageSpare) * dev->attr->pages_per_block
-			) * maxCachedBlocks;
-
-	if (dev->mem.blockinfo_pool_size == 0) {
-		if (dev->mem.malloc) {
-			dev->mem.blockinfo_pool_buf = dev->mem.malloc(dev, size);
-			if (dev->mem.blockinfo_pool_buf)
-				dev->mem.blockinfo_pool_size = size;
-		}
-	}
-	if (size > dev->mem.blockinfo_pool_size) {
-		uffs_Perror(UFFS_MSG_DEAD,
-					"Block cache buffer require %d but only %d available.",
-					size, dev->mem.blockinfo_pool_size);
-		return U_FAIL;
-	}
-
-	uffs_Perror(UFFS_MSG_NOISY, "alloc info cache %d bytes.", size);
-
-	buf = dev->mem.blockinfo_pool_buf;
-
-	memset(buf, 0, size);
-
-	dev->bc.mem_pool = buf;
-
-	size = 0;
-	blockInfos = (uffs_BlockInfo *)buf;
-	size += sizeof(uffs_BlockInfo) * maxCachedBlocks;
-
-	pageSpares = (uffs_PageSpare *)((char *)buf + size);
-
-	//initialize block info
-	work = &(blockInfos[0]);
-	dev->bc.head = work;
-	work->ref_count = 0;
-	work->prev = NULL;
-	work->next = &(blockInfos[1]);
-	work->block = UFFS_INVALID_BLOCK;
-
-	for (i = 0; i < maxCachedBlocks - 2; i++) {
-		work = &(blockInfos[i+1]);
-		work->prev = &(blockInfos[i]);
-		work->next = &(blockInfos[i+2]);
-		work->ref_count = 0;
-		work->block = UFFS_INVALID_BLOCK;
-	}
-	//the last node
-	work = &(blockInfos[i+1]);
-	work->prev = &(blockInfos[i]);
-	work->next = NULL;
-	work->block = UFFS_INVALID_BLOCK;
-	work->ref_count = 0;
-	dev->bc.tail = work;
-
-	//initialize spares
-	work = dev->bc.head;
-	for (i = 0; i < maxCachedBlocks; i++) {
-		work->spares = &(pageSpares[i*dev->attr->pages_per_block]);
-		for (j = 0; j < dev->attr->pages_per_block; j++) {
-			work->spares[j].expired = 1;
-		}
-		work->expired_count = dev->attr->pages_per_block;
-		work = work->next;
-	}
-	return U_SUCC;
-}
-
-/**
- * \brief release all allocated memory of block info cache, 
- *			this function should be called when unmount file system
- * \param[in] dev uffs device
- */
-URET uffs_BlockInfoReleaseCache(uffs_Device *dev)
-{
-	uffs_BlockInfo *work;
-
-	if (dev->bc.head) {
-		for (work = dev->bc.head; work != NULL; work = work->next) {
-			if (work->ref_count != 0) {
-				uffs_Perror(UFFS_MSG_SERIOUS,
-					"There have refed block info cache, release cache fail.");
-				return U_FAIL;
-			}
-		}
-		if (dev->mem.free) {
-			dev->mem.free(dev, dev->bc.mem_pool);
-			dev->mem.blockinfo_pool_size = 0;
-		}
-	}
-
-	dev->bc.head = dev->bc.tail = NULL;
-	dev->bc.mem_pool = NULL;
-
-	return U_SUCC;
-}
-
-static void _BreakBcFromList(uffs_Device *dev, uffs_BlockInfo *bc)
-{
-	if (bc->prev)
-		bc->prev->next = bc->next;
-
-	if (bc->next)
-		bc->next->prev = bc->prev;
-
-	if (dev->bc.head == bc)
-		dev->bc.head = bc->next;
-
-	if (dev->bc.tail == bc)
-		dev->bc.tail = bc->prev;
-}
-
-static void _InsertToBcListTail(uffs_Device *dev, uffs_BlockInfo *bc)
-{
-	bc->next = NULL;
-	bc->prev = dev->bc.tail;
-	bc->prev->next = bc;
-	dev->bc.tail = bc;
-}
-
-static void _MoveBcToTail(uffs_Device *dev, uffs_BlockInfo *bc)
-{
-	_BreakBcFromList(dev, bc);
-	_InsertToBcListTail(dev, bc);
-}
-
-
-/** 
- * \brief load page spare data to given block info structure
- *			with given page number
- * \param[in] dev uffs device
- * \param[in] work given block info to be filled with
- * \param[in] page given page number to be read from,
- *			  if #UFFS_ALL_PAGES is presented, it will read
- *			  all pages, otherwise it will read only one given page.
- * \return load result
- * \retval U_SUCC successful
- * \retval U_FAIL fail to load
- * \note work->block must be set before load block info
- */
-URET uffs_BlockInfoLoad(uffs_Device *dev, uffs_BlockInfo *work, int page)
-{
-	int i, ret;
-	uffs_PageSpare *spare;
-
-	if (page == UFFS_ALL_PAGES) {
-		for (i = 0; i < dev->attr->pages_per_block; i++) {
-			spare = &(work->spares[i]);
-			if (spare->expired == 0)
-				continue;
-			
-			ret = uffs_FlashReadPageTag(dev, work->block, i,
-											&(spare->tag));
-			if (UFFS_FLASH_HAVE_ERR(ret)) {
-				uffs_Perror(UFFS_MSG_SERIOUS,
-							"load block %d page %d spare fail.",
-							work->block, i);
-				return U_FAIL;
-			}
-			spare->expired = 0;
-			work->expired_count--;
-		}
-	}
-	else {
-		if (page < 0 || page >= dev->attr->pages_per_block) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "page out of range !");
-			return U_FAIL;
-		}
-		spare = &(work->spares[page]);
-		if (spare->expired != 0) {
-			ret = uffs_FlashReadPageTag(dev, work->block, page,
-											&(spare->tag));
-			if (UFFS_FLASH_HAVE_ERR(ret)) {
-				uffs_Perror(UFFS_MSG_SERIOUS,
-							"load block %d page %d spare fail.",
-							work->block, page);
-				return U_FAIL;
-			}
-			spare->expired = 0;
-			work->expired_count--;
-		}
-	}
-	return U_SUCC;
-}
-
-
-/** 
- * \brief find a block cache with given block number
- * \param[in] dev uffs device
- * \param[in] block block number
- * \return found block cache
- * \retval NULL cache not found
- * \retval non-NULL found cache pointer
- */
-uffs_BlockInfo * uffs_BlockInfoFindInCache(uffs_Device *dev, int block)
-{
-	uffs_BlockInfo *work;
-	
-	//search cached block
-	for (work = dev->bc.head; work != NULL; work = work->next) {
-		if (work->block == block) {
-			work->ref_count++;
-			return work;
-		}
-	}
-	return NULL;
-}
-
-
-/** 
- * \brief Find a cached block in cache pool,
- *			if the cached block exist then return the pointer,
- *			if the block does not cached already, find a non-used cache.
- *			if all of cached are used out, return NULL.
- * \param[in] dev uffs device
- * \param[in] block block number to be found
- * \return found block cache buffer
- * \retval NULL caches used out
- * \retval non-NULL buffer pointer of given block
- */
-uffs_BlockInfo * uffs_BlockInfoGet(uffs_Device *dev, int block)
-{
-	uffs_BlockInfo *work;
-	int i;
-
-	//search cached block
-	if ((work = uffs_BlockInfoFindInCache(dev, block)) != NULL) {
-		_MoveBcToTail(dev, work);
-		return work;
-	}
-
-	//can't find block from cache, need to find a free(unlocked) cache
-	for (work = dev->bc.head; work != NULL; work = work->next) {
-		if(work->ref_count == 0) break;
-	}
-	if (work == NULL) {
-		//caches used out !
-		uffs_Perror(UFFS_MSG_SERIOUS,  "insufficient block info cache");
-		return NULL;
-	}
-
-	work->block = block;
-	work->expired_count = dev->attr->pages_per_block;
-	for (i = 0; i < dev->attr->pages_per_block; i++) {
-		work->spares[i].expired = 1;
-
-		// TODO: init tag
-	}
-
-	work->ref_count = 1;
-
-	_MoveBcToTail(dev, work);
-
-	return work;
-}
-
-/** 
- * \brief put block info buffer back to pool,
- *			 should be called with #uffs_BlockInfoGet in pairs.
- * \param[in] dev uffs device
- * \param[in] p pointer of block info buffer
- */
-void uffs_BlockInfoPut(uffs_Device *dev, uffs_BlockInfo *p)
-{
-	dev = dev;
-	if (p)
-	{
-		if (p->ref_count == 0) {
-			uffs_Perror(UFFS_MSG_SERIOUS,
-				"Put an unused block info cache back ?");
-		}
-		else {
-			p->ref_count--;
-		}
-	}
-}
-
-
-/** 
- * \brief make the given pages expired in given block info buffer
- * \param[in] dev uffs device
- * \param[in] p pointer of block info buffer
- * \param[in] page given page number.
- *	if #UFFS_ALL_PAGES presented, all pages in the block should be made expired.
- */
-void uffs_BlockInfoExpire(uffs_Device *dev, uffs_BlockInfo *p, int page)
-{
-	int i;
-	uffs_PageSpare *spare;
-
-	if (page == UFFS_ALL_PAGES) {
-		for (i = 0; i < dev->attr->pages_per_block; i++) {
-			spare = &(p->spares[i]);
-			if (spare->expired == 0) {
-				spare->expired = 1;
-				p->expired_count++;
-			}
-		}
-	}
-	else {
-		if (page >= 0 && page < dev->attr->pages_per_block) {
-			spare = &(p->spares[page]);
-			if (spare->expired == 0) {
-				spare->expired = 1;
-				p->expired_count++;
-			}
-		}
-	}
-}
-
-/** 
- * Is all blcok info cache free (not referenced) ?
- */
-UBOOL uffs_BlockInfoIsAllFree(uffs_Device *dev)
-{
-	uffs_BlockInfo *work;
-
-	work = dev->bc.head;
-	while (work) {
-		if (work->ref_count != 0)
-			return U_FALSE;
-		work = work->next;
-	}
-
-	return U_TRUE;
-}
-
-void uffs_BlockInfoExpireAll(uffs_Device *dev)
-{
-	uffs_BlockInfo *bc;
-
-	bc = dev->bc.head;
-	while (bc) {
-		uffs_BlockInfoExpire(dev, bc, UFFS_ALL_PAGES);
-		bc = bc->next;
-	}
-	return;
-}
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_buf.c b/components/dfs/filesystems/uffs/src/uffs/uffs_buf.c
deleted file mode 100644
index fd646aa73e..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_buf.c
+++ /dev/null
@@ -1,1799 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-/** 
- * \file uffs_buf.c
- * \brief uffs page buffers manipulations
- * \author Ricky Zheng
- * \note Created in 11th May, 2005
- */
-#include "uffs_config.h"
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_buf.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_pool.h"
-#include "uffs/uffs_ecc.h"
-#include "uffs/uffs_badblock.h"
-#include <string.h>
-
-#define PFX "pbuf: "
-
-
-URET _BufFlush(struct uffs_DeviceSt *dev, UBOOL force_block_recover, int slot);
-
-
-/**
- * \brief inspect (print) uffs page buffers.
- * \param[in] dev uffs device to be inspected.
- */
-void uffs_BufInspect(uffs_Device *dev)
-{
-	struct uffs_PageBufDescSt *pb = &dev->buf;
-	uffs_Buf *buf;
-
-	uffs_PerrorRaw(UFFS_MSG_NORMAL,
-					"------------- page buffer inspect ---------" TENDSTR);
-	uffs_PerrorRaw(UFFS_MSG_NORMAL, "all buffers: " TENDSTR);
-	for (buf = pb->head; buf; buf = buf->next) {
-		if (buf->mark != 0) {
-			uffs_PerrorRaw(UFFS_MSG_NORMAL,
-				"\tF:%04x S:%04x P:%02d R:%02d D:%03d M:%c EM:%d" TENDSTR,
-				buf->parent, buf->serial,
-				buf->page_id, buf->ref_count,
-				buf->data_len, buf->mark == UFFS_BUF_VALID ? 'V' : 'D',
-				buf->ext_mark);
-		}
-	}
-	uffs_PerrorRaw(UFFS_MSG_NORMAL,
-					"--------------------------------------------"  TENDSTR);
-}
-
-/**
- * \brief initialize page buffers for device
- * in UFFS, each device has one buffer pool
- * \param[in] dev uffs device
- * \param[in] buf_max maximum buffer number, normally use #MAX_PAGE_BUFFERS
- * \param[in] dirty_buf_max maximum dirty buffer allowed,
- *				if the dirty buffer over this number,
- *				than need to be flush to flash
- */
-URET uffs_BufInit(uffs_Device *dev, int buf_max, int dirty_buf_max)
-{
-	void *pool;
-	u8 *data;
-	uffs_Buf *buf;
-	int size;
-	int i, slot;
-
-	if (!dev)
-		return U_FAIL;
-
-	//init device common parameters, which are needed by page buffers
-	dev->com.pg_size = dev->attr->page_data_size;  // we use the whole page.
-	dev->com.header_size = sizeof(struct uffs_MiniHeaderSt); // mini header
-	dev->com.pg_data_size = dev->com.pg_size - dev->com.header_size;
-
-	if (dev->buf.pool != NULL) {
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"buf.pool is not NULL, buf already inited ?");
-		return U_FAIL;
-	}
-	
-	size = (sizeof(uffs_Buf) + dev->com.pg_size) * buf_max;
-	if (dev->mem.pagebuf_pool_size == 0) {
-		if (dev->mem.malloc) {
-			dev->mem.pagebuf_pool_buf = dev->mem.malloc(dev, size);
-			if (dev->mem.pagebuf_pool_buf)
-				dev->mem.pagebuf_pool_size = size;
-		}
-	}
-	if (size > dev->mem.pagebuf_pool_size) {
-		uffs_Perror(UFFS_MSG_DEAD,
-					"page buffers require %d but only %d available.",
-				size, dev->mem.pagebuf_pool_size);
-		return U_FAIL;
-	}
-	pool = dev->mem.pagebuf_pool_buf;
-
-	uffs_Perror(UFFS_MSG_NOISY, "alloc %d bytes.", size);
-	dev->buf.pool = pool;
-
-	for (i = 0; i < buf_max; i++) {
-		buf = (uffs_Buf *)((u8 *)pool + (sizeof(uffs_Buf) * i));
-		memset(buf, 0, sizeof(uffs_Buf));
-		data = (u8 *)pool + (sizeof(uffs_Buf) * buf_max) + (dev->com.pg_size * i);
-		buf->header = data;
-		buf->data = data + dev->com.header_size;
-		buf->mark = UFFS_BUF_EMPTY;
-		memset(buf->header, 0, dev->com.pg_size);
-		if (i == 0) {
-			buf->prev = NULL;
-			dev->buf.head = buf;
-		}
-		else {
-			buf->prev = (uffs_Buf *)((u8 *)buf - sizeof(uffs_Buf));
-		}
-
-		if (i == (buf_max - 1)) {
-			buf->next = NULL;
-			dev->buf.tail = buf;
-		}
-		else {
-			buf->next = (uffs_Buf *)((u8 *)buf + sizeof(uffs_Buf));
-		}
-	}
-
-	dev->buf.buf_max = buf_max;
-	dev->buf.dirty_buf_max = (dirty_buf_max > dev->attr->pages_per_block ?
-								dev->attr->pages_per_block : dirty_buf_max);
-
-	for (slot = 0; slot < dev->cfg.dirty_groups; slot++) {
-		dev->buf.dirtyGroup[slot].dirty = NULL;
-		dev->buf.dirtyGroup[slot].count = 0;
-	}
-	return U_SUCC;
-}
-
-/**
- * \brief flush all buffers
- */
-URET uffs_BufFlushAll(struct uffs_DeviceSt *dev)
-{
-	int slot;
-	for (slot = 0; slot < dev->cfg.dirty_groups; slot++) {
-		if(_BufFlush(dev, FALSE, slot) != U_SUCC) {
-			uffs_Perror(UFFS_MSG_NORMAL,
-						"fail to flush buffer(slot %d)", slot);
-			return U_FAIL;
-		}
-	}
-	return U_SUCC;
-}
-
-/** 
- * \brief release all page buffer, this function should be called 
-			when unmounting a uffs device
- * \param[in] dev uffs device
- * \note if there are page buffers in used, it may cause fail to release
- */
-URET uffs_BufReleaseAll(uffs_Device *dev)
-{
-	uffs_Buf *p;
-
-	if (!dev)
-		return U_FAIL;
-
-	//now release all buffer
-	p = dev->buf.head;
-	while (p) {
-		if (p->ref_count != 0) {
-			uffs_Perror(UFFS_MSG_NORMAL, PFX
-						"can't release buffers, parent:%d, serial:%d, \
-						page_id:%d still in used.\n",
-						p->parent, p->serial, p->page_id);
-			return U_FAIL;
-		}
-		p = p->next;
-	}
-
-	if (uffs_BufFlushAll(dev) != U_SUCC) {
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"can't release buf, fail to flush buffer");
-		return U_FAIL;
-	}
-
-	if (dev->mem.free) {
-		dev->mem.free(dev, dev->buf.pool);
-		dev->mem.pagebuf_pool_size = 0;
-	}
-
-	dev->buf.pool = NULL;
-	dev->buf.head = dev->buf.tail = NULL;
-
-	return U_SUCC;
-}
-
-
-static void _BreakFromBufList(uffs_Device *dev, uffs_Buf *buf)
-{
-	if(buf->next)
-		buf->next->prev = buf->prev;
-
-	if(buf->prev)
-		buf->prev->next = buf->next;
-
-	if(dev->buf.head == buf)
-		dev->buf.head = buf->next;
-
-	if(dev->buf.tail == buf)
-		dev->buf.tail = buf->prev;
-
-}
-
-static void _LinkToBufListHead(uffs_Device *dev, uffs_Buf *buf)
-{
-	if (buf == dev->buf.head)
-		return;
-
-	buf->prev = NULL;
-	buf->next = dev->buf.head;
-
-	if (dev->buf.head)
-		dev->buf.head->prev = buf;
-
-	if (dev->buf.tail == NULL)
-		dev->buf.tail = buf;
-
-	dev->buf.head = buf;
-}
-
-static void _LinkToBufListTail(uffs_Device *dev, uffs_Buf *buf)
-{
-	if (dev->buf.tail == buf)
-		return;
-
-	buf->prev = dev->buf.tail;
-	buf->next = NULL;
-
-	if (dev->buf.tail)
-		dev->buf.tail->next = buf;
-
-	if (dev->buf.head == NULL)
-		dev->buf.head = buf;
-
-	dev->buf.tail = buf;
-}
-
-//move a node which linked in the list to the head of list
-static void _MoveNodeToHead(uffs_Device *dev, uffs_Buf *p)
-{
-	if (p == dev->buf.head)
-		return;
-
-	//break from list
-	_BreakFromBufList(dev, p);
-
-	//link to head
-	_LinkToBufListHead(dev, p);
-}
-
-// check if the buf is already in dirty list
-static UBOOL _IsBufInInDirtyList(uffs_Device *dev, int slot, uffs_Buf *buf)
-{
-	uffs_Buf *work;
-	work = dev->buf.dirtyGroup[slot].dirty;
-	while (work) {
-		if (work == buf) 
-			return U_TRUE;
-		work = work->next_dirty;
-	}
-
-	return U_FALSE;
-}
-
-static void _LinkToDirtyList(uffs_Device *dev, int slot, uffs_Buf *buf)
-{
-
-	if (buf == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"Try to insert a NULL node into dirty list ?");
-		return;
-	}
-
-	buf->mark = UFFS_BUF_DIRTY;
-	buf->prev_dirty = NULL;
-	buf->next_dirty = dev->buf.dirtyGroup[slot].dirty;
-
-	if (dev->buf.dirtyGroup[slot].dirty) 
-		dev->buf.dirtyGroup[slot].dirty->prev_dirty = buf;
-
-	dev->buf.dirtyGroup[slot].dirty = buf;
-	dev->buf.dirtyGroup[slot].count++;
-}
-
-static int CountFreeBuf(uffs_Device *dev)
-{
-	int count = 0;
-
-	uffs_Buf *buf = dev->buf.head;
-
-	while (buf) {
-
-		if (buf->ref_count == 0 && 
-			buf->mark != UFFS_BUF_DIRTY)
-			count++;
-
-		buf = buf->next;
-	}
-
-	return count;
-}
-
-static uffs_Buf * _FindFreeBufEx(uffs_Device *dev, int clone)
-{
-	uffs_Buf *buf;
-
-	if (!clone && CountFreeBuf(dev) <= CLONE_BUFFERS_THRESHOLD)
-		return NULL;
-
-#if 0
-	buf = dev->buf.head;
-	while (buf) {
-
-		if (buf->ref_count == 0 && 
-			buf->mark != UFFS_BUF_DIRTY)
-			return buf;
-
-		buf = buf->next;
-	}
-#else
-	buf = dev->buf.tail;
-	while (buf) {
-
-		if(buf->ref_count == 0 &&
-			buf->mark != UFFS_BUF_DIRTY) 
-			return buf;
-
-		buf = buf->prev;
-	}
-#endif
-
-	return buf;
-}
-
-static uffs_Buf * _FindFreeBuf(uffs_Device *dev)
-{
-	return _FindFreeBufEx(dev, 0);
-}
-
-
-/** 
- * load psychical page data into buf and do ecc check 
- * \param[in] dev uffs device
- * \param[in] buf buf to be load in
- * \param[in] block psychical block number
- * \param[in] page psychical page number
- * \return return U_SUCC if no error,
- *	 return U_FAIL if I/O error or ecc check fail
- */
-URET uffs_BufLoadPhyData(uffs_Device *dev, uffs_Buf *buf, u32 block, u32 page)
-{
-	int ret;
-
-	ret = uffs_FlashReadPage(dev, block, page, buf, U_FALSE);
-
-	if (UFFS_FLASH_HAVE_ERR(ret)) {
-		buf->mark = UFFS_BUF_EMPTY;
-		return U_FAIL;
-	}
-	else {
-		buf->mark = UFFS_BUF_VALID;
-		return U_SUCC;
-	}
-}
-
-/** 
- * \brief load psychical page data into buf and ignore ECC result
- *
- * \param[in] dev uffs device
- * \param[in] buf buf to be load in
- * \param[in] block psychical block number
- * \param[in] page psychical page number
- *
- * \return return U_SUCC if no error, return U_FAIL if I/O error
- * \note this function should be only used when doing bad block recover.
- */
-URET uffs_LoadPhyDataToBufEccUnCare(uffs_Device *dev,
-									uffs_Buf *buf, u32 block, u32 page)
-{
-	int ret;
-
-	ret = uffs_FlashReadPage(dev, block, page, buf, U_TRUE);
-
-	if (ret == UFFS_FLASH_IO_ERR) {
-		buf->mark = UFFS_BUF_EMPTY;
-		return U_FAIL;
-	}
-	else {
-		buf->mark = UFFS_BUF_VALID;
-		return U_SUCC;
-	}
-}
-
-/** 
- * find a buffer in the pool
- * \param[in] dev uffs device
- * \param[in] start buf to search from
- * \param[in] parent parent serial num
- * \param[in] serial serial num
- * \param[in] page_id page_id (if page_id == UFFS_ALL_PAGES then any page would match)
- * \return return found buffer, return NULL if buffer not found
- */
-uffs_Buf * uffs_BufFindFrom(uffs_Device *dev, uffs_Buf *start,
-						u16 parent, u16 serial, u16 page_id)
-{
-	uffs_Buf *p = start;
-
-	while (p) {
-		if(	p->parent == parent &&
-			p->serial == serial &&
-			(page_id == UFFS_ALL_PAGES || p->page_id == page_id) &&
-			p->mark != UFFS_BUF_EMPTY) 
-		{
-			//they have match one
-			return p;
-		}
-		p = p->next;
-	}
-
-	return NULL; //buffer not found
-}
-
-/** 
- * find a buffer in the pool
- * \param[in] dev uffs device
- * \param[in] parent parent serial num
- * \param[in] serial serial num
- * \param[in] page_id page_id (if page_id == UFFS_ALL_PAGES then any page would match)
- * \return return found buffer, return NULL if buffer not found
- */
-uffs_Buf * uffs_BufFind(uffs_Device *dev,
-						u16 parent, u16 serial, u16 page_id)
-{
-	uffs_Buf *p = dev->buf.head;
-
-	return uffs_BufFindFrom(dev, p, parent, serial, page_id);
-}
-
-
-static uffs_Buf * _FindBufInDirtyList(uffs_Buf *dirty, u16 page_id)
-{
-	while(dirty) {
-		if (dirty->page_id == page_id) 
-			return dirty;
-		dirty = dirty->next_dirty;
-	}
-	return NULL;
-}
-
-static URET _BreakFromDirty(uffs_Device *dev, uffs_Buf *dirtyBuf)
-{
-	int slot = -1;
-
-	if (dirtyBuf->mark != UFFS_BUF_DIRTY) {
-		uffs_Perror(UFFS_MSG_NORMAL,
-						"try to break a non-dirty buf from dirty list ?");
-		return U_FAIL;
-	}
-
-	slot = uffs_BufFindGroupSlot(dev, dirtyBuf->parent, dirtyBuf->serial);
-	if (slot < 0) {
-		uffs_Perror(UFFS_MSG_NORMAL, "no dirty list exit ?");
-		return U_FAIL;
-	}
-
-	// break from the link
-	if (dirtyBuf->next_dirty) {
-		dirtyBuf->next_dirty->prev_dirty = dirtyBuf->prev_dirty;
-	}
-
-	if (dirtyBuf->prev_dirty) {
-		dirtyBuf->prev_dirty->next_dirty = dirtyBuf->next_dirty;
-	}
-
-	// check if it's the link head ...
-	if (dev->buf.dirtyGroup[slot].dirty == dirtyBuf) {
-		dev->buf.dirtyGroup[slot].dirty = dirtyBuf->next_dirty;
-	}
-
-	dirtyBuf->next_dirty = dirtyBuf->prev_dirty = NULL; // clear dirty link
-
-	dev->buf.dirtyGroup[slot].count--;
-
-	return U_SUCC;
-}
-
-static u16 _GetDirOrFileNameSum(uffs_Device *dev, uffs_Buf *buf)
-{
-	u16 data_sum = 0; //default: 0
-	uffs_FileInfo *fi;
-	
-	dev = dev;
-	//FIXME: We use the same schema for both dir and file.
-	if (buf->type == UFFS_TYPE_FILE || buf->type == UFFS_TYPE_DIR) {
-		if (buf->page_id == 0) {
-			fi = (uffs_FileInfo *)(buf->data);
-			data_sum = uffs_MakeSum16(fi->name, fi->name_len);
-		}
-	}
-
-	return data_sum;
-}
-
-
-static URET _CheckDirtyList(uffs_Buf *dirty)
-{
-	u16 parent;
-	u16 serial;
-
-	if (dirty == NULL) {
-		return U_SUCC;
-	}
-
-	parent = dirty->parent;
-	serial = dirty->serial;
-	dirty = dirty->next_dirty;
-
-	while (dirty) {
-		if (parent != dirty->parent ||
-			serial != dirty->serial) {
-			uffs_Perror(UFFS_MSG_SERIOUS,
-					"parent or serial in dirty pages buffer are not the same ?");
-			return U_FAIL;
-		}
-		if (dirty->mark != UFFS_BUF_DIRTY) {
-			uffs_Perror(UFFS_MSG_SERIOUS,
-					"non-dirty page buffer in dirty buffer list ?");
-			return U_FAIL;
-		}
-		dirty = dirty->next_dirty;
-	}
-	return U_SUCC;
-}
-
-/** find a page in dirty list, which has minimum page_id */
-uffs_Buf * _FindMinimunPageIdFromDirtyList(uffs_Buf *dirtyList)
-{
-	uffs_Buf * work = dirtyList;
-	uffs_Buf * buf = dirtyList;
-
-	if (buf) {
-		work = work->next_dirty;
-		while (work) {
-			if (work->page_id < buf->page_id)
-				buf = work;
-			work = work->next_dirty;
-		}
-
-		uffs_Assert(buf->mark == UFFS_BUF_DIRTY, 
-					"buf (serial = %d, parent = %d, page_id = %d, type = %d) in dirty list but mark is 0x%x ?",
-					buf->serial, buf->parent, buf->page_id, buf->type, buf->mark);
-	}
-
-	return buf;
-}
-
-
-/** 
- * \brief flush buffer with block recover
- *
- * Scenario: 
- *	1. get a free (erased) block --> newNode <br>
- *	2. copy from old block ---> oldNode, or copy from dirty list, <br>
- *		sorted by page_id, to new block. Skips the invalid pages when copy pages.<br>
- *	3. erased old block. set new info to oldNode, set newNode->block = old block,<br>
- *		and put newNode to erased list.<br>
- *	\note IT'S IMPORTANT TO KEEP OLD NODE IN THE LIST,
- *		 so you don't need to update the obj->node :-)
- */
-static URET uffs_BufFlush_Exist_With_BlockCover(
-			uffs_Device *dev,
-			int slot,			//!< dirty group slot
-			TreeNode *node,		//!< old data node on tree
-			uffs_BlockInfo *bc	//!< old data block info
-			)
-{
-	u16 i;
-	u8 type, timeStamp;
-	u16 page, parent, serial;
-	uffs_Buf *buf;
-	TreeNode *newNode;
-	uffs_BlockInfo *newBc;
-	uffs_Tags *tag, *oldTag;
-	int x;
-	u16 newBlock;
-	UBOOL succRecover;			//U_TRUE: recover successful, erase old block,
-								//U_FALSE: fail to recover, erase new block
-	UBOOL flash_op_err;
-	u16 data_sum = 0xFFFF;
-
-	UBOOL useCloneBuf;
-
-	type = dev->buf.dirtyGroup[slot].dirty->type;
-	parent = dev->buf.dirtyGroup[slot].dirty->parent;
-	serial = dev->buf.dirtyGroup[slot].dirty->serial;
-
-retry:
-	uffs_BlockInfoLoad(dev, bc, UFFS_ALL_PAGES);
-
-	flash_op_err = UFFS_FLASH_NO_ERR;
-	succRecover = U_FALSE;
-
-	newNode = uffs_TreeGetErasedNode(dev);
-	if (newNode == NULL) {
-		uffs_Perror(UFFS_MSG_NOISY, "no enough erased block!");
-		goto ext;
-	}
-	newBlock = newNode->u.list.block;
-	newBc = uffs_BlockInfoGet(dev, newBlock);
-	if (newBc == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "get block info fail!");
-		uffs_InsertToErasedListHead(dev, newNode);  //put node back to erased list
-											//because it doesn't use, so put to head
-		goto ext;
-	}
-
-	//uffs_Perror(UFFS_MSG_NOISY, "flush buffer with block cover to %d", newBlock);
-
-#if 0
-	// this assert seems not necessary ...
-	if (!uffs_Assert(newBc->expired_count == dev->attr->pages_per_block,
-			"We have block cache for erased block ? expired_count = %d, block = %d\n",
-			newBc->expired_count, newBc->block)) {
-		uffs_BlockInfoExpire(dev, newBc, UFFS_ALL_PAGES);
-	}
-#endif
-
-	uffs_BlockInfoLoad(dev, newBc, UFFS_ALL_PAGES);
-	timeStamp = uffs_GetNextBlockTimeStamp(uffs_GetBlockTimeStamp(dev, bc));
-
-//	uffs_Perror(UFFS_MSG_NOISY, "Flush buffers with Block Recover, from %d to %d", 
-//					bc->block, newBc->block);
-
-	for (i = 0; i < dev->attr->pages_per_block; i++) {
-		tag = GET_TAG(newBc, i);
-		TAG_DIRTY_BIT(tag) = TAG_DIRTY;
-		TAG_VALID_BIT(tag) = TAG_VALID;
-		TAG_BLOCK_TS(tag) = timeStamp;
-		TAG_PARENT(tag) = parent;
-		TAG_SERIAL(tag) = serial;
-		TAG_TYPE(tag) = type;
-		TAG_PAGE_ID(tag) = (u8)(i & 0xFF);	// now, page_id = page.
-									// FIX ME!! if more than 256 pages in a block
-
-		SEAL_TAG(tag);
-		
-		buf = _FindBufInDirtyList(dev->buf.dirtyGroup[slot].dirty, i);
-		if (buf != NULL) {
-			if (i == 0)
-				data_sum = _GetDirOrFileNameSum(dev, buf);
-
-			TAG_DATA_LEN(tag) = buf->data_len;
-
-			if (buf->data_len == 0 || (buf->ext_mark & UFFS_BUF_EXT_MARK_TRUNC_TAIL)) { // this only happen when truncating a file
-
-				// when truncating a file, the last dirty buf will be
-				// set as UFFS_BUF_EXT_MARK_TAIL. so that we don't do page recovery
-				// for the rest pages in the block. (file is ended at this page)
-
-				if (!uffs_Assert((buf->ext_mark & UFFS_BUF_EXT_MARK_TRUNC_TAIL) != 0,
-					"buf->data == 0 but not the last page of truncating ? block = %d, page_id = %d",
-					bc->block, i)) {
-
-					// We can't do more about it for now ...
-				}
-
-				if (buf->data_len > 0) {
-					flash_op_err = uffs_FlashWritePageCombine(dev, newBlock, i, buf, tag);
-				}
-				else {
-					// data_len == 0, no I/O needed.
-					flash_op_err = UFFS_FLASH_NO_ERR;
-				}
-				succRecover = U_TRUE;
-				break;
-			}
-			else
-				flash_op_err = uffs_FlashWritePageCombine(dev, newBlock, i, buf, tag);
-
-			if (flash_op_err != UFFS_FLASH_NO_ERR) {
-				if (flash_op_err == UFFS_FLASH_BAD_BLK) {
-					uffs_Perror(UFFS_MSG_NORMAL,
-								"new bad block %d discovered.", newBlock);
-					break;
-				}
-				else if (flash_op_err == UFFS_FLASH_IO_ERR) {
-					uffs_Perror(UFFS_MSG_NORMAL,
-								"writing to block %d page %d, I/O error ?", 
-								(int)newBlock, (int)i);
-					break;
-				}
-				else {
-					uffs_Perror(UFFS_MSG_SERIOUS, "Unhandled flash op result: %d", flash_op_err);
-					break;
-				}
-			}
-		}
-		else {
-			page = uffs_FindPageInBlockWithPageId(dev, bc, i);
-			if (page == UFFS_INVALID_PAGE) {
-				succRecover = U_TRUE;
-				break;  //end of last page, normal break
-			}
-			page = uffs_FindBestPageInBlock(dev, bc, page);
-
-			if (!uffs_Assert(page != UFFS_INVALID_PAGE, "got an invalid page ?\n"))
-				break;
-
-			oldTag = GET_TAG(bc, page);
-
-			// First, try to find existing cached buffer.
-			// Note: do not call uffs_BufGetEx() as it may trigger buf flush and result in infinite loop
-			buf = uffs_BufGet(dev, parent, serial, i);
-
-			if (buf == NULL) {  // no cached page buffer, use clone buffer.
-				useCloneBuf = U_TRUE;
-				buf = uffs_BufClone(dev, NULL);
-				if (buf == NULL) {
-					uffs_Perror(UFFS_MSG_SERIOUS, "Can't clone a new buf!");
-					break;
-				}
-				x = uffs_BufLoadPhyData(dev, buf, bc->block, page);
-				if (x == U_FAIL) {
-					if (HAVE_BADBLOCK(dev) && dev->bad.block == bc->block) {
-						// the old block is a bad block, we'll process it later.
-						uffs_Perror(UFFS_MSG_SERIOUS,
-									"the old block %d is a bad block, \
-									but ignore it for now.",
-									bc->block);
-					}
-					else {
-						uffs_Perror(UFFS_MSG_SERIOUS, "I/O error ?");
-						uffs_BufFreeClone(dev, buf);
-						flash_op_err = UFFS_FLASH_IO_ERR;
-						break;
-					}
-				}
-
-				buf->type = type;
-				buf->parent = parent;
-				buf->serial = serial;
-				buf->page_id = TAG_PAGE_ID(oldTag);
-				buf->data_len = TAG_DATA_LEN(oldTag);
-
-			}
-			else {
-				useCloneBuf = U_FALSE;
-
-				uffs_Assert(buf->page_id == TAG_PAGE_ID(oldTag), "buf->page_id = %d, tag page id: %d", buf->page_id, TAG_PAGE_ID(oldTag));
-				uffs_Assert(buf->data_len == TAG_DATA_LEN(oldTag), "buf->data_len = %d, tag data len: %d", buf->data_len, TAG_DATA_LEN(oldTag));
-			}
-
-			if (buf->data_len > dev->com.pg_data_size) {
-				uffs_Perror(UFFS_MSG_NOISY, "data length over flow, truncated !");
-				buf->data_len = dev->com.pg_data_size;
-			}
-
-			if (!uffs_Assert(buf->data_len != 0, "data_len == 0 ? block %d, page %d, serial %d, parent %d",
-				bc->block, page, buf->serial, buf->parent)) {
-				// this could be some error on flash ? we can't do more about it for now ...
-			}
-
-			TAG_DATA_LEN(tag) = buf->data_len;
-
-			if (i == 0)
-				data_sum = _GetDirOrFileNameSum(dev, buf);
-
-			flash_op_err = uffs_FlashWritePageCombine(dev, newBlock, i, buf, tag);
-
-			if (buf) {
-				if (useCloneBuf)
-					uffs_BufFreeClone(dev, buf);
-				else
-					uffs_BufPut(dev, buf);
-			}
-
-			if (flash_op_err == UFFS_FLASH_BAD_BLK) {
-				uffs_Perror(UFFS_MSG_NORMAL,
-							"new bad block %d discovered.", newBlock);
-				break;
-			}
-			else if (flash_op_err == UFFS_FLASH_IO_ERR) {
-				uffs_Perror(UFFS_MSG_NORMAL, "I/O error ?", newBlock);
-				break;
-			}
-		}
-	} //end of for
-
-	if (i == dev->attr->pages_per_block)
-		succRecover = U_TRUE;
-	else {
-		// expire last page info cache in case the 'tag' is not written.
-		uffs_BlockInfoExpire(dev, newBc, i);
-	}
-
-	if (flash_op_err == UFFS_FLASH_BAD_BLK) {
-		uffs_BlockInfoExpire(dev, newBc, UFFS_ALL_PAGES);
-		uffs_BlockInfoPut(dev, newBc);
-		if (newNode->u.list.block == dev->bad.block) {
-			// the recovered block is a BAD block (buy me a lotto, please :-), we need to 
-			// deal with it immediately (mark it as 'bad' and put into bad block list).
-			uffs_BadBlockProcess(dev, newNode);
-		}
-
-		uffs_Perror(UFFS_MSG_NORMAL, "Retry block cover ...");
-
-		goto retry; // retry on a new erased block ...
-	}
-
-	if (succRecover == U_TRUE) {
-		// now it's time to clean the dirty buffers
-		for (i = 0; i < dev->attr->pages_per_block; i++) {
-			buf = _FindBufInDirtyList(dev->buf.dirtyGroup[slot].dirty, i);
-			if (buf) {
-				if (_BreakFromDirty(dev, buf) == U_SUCC) {
-					buf->mark = UFFS_BUF_VALID;
-					buf->ext_mark &= ~UFFS_BUF_EXT_MARK_TRUNC_TAIL;
-					_MoveNodeToHead(dev, buf);
-				}
-			}
-		}
-
-		// swap the old block node and new block node.
-		// it's important that we 'swap' the block and keep the node unchanged
-		// so that allowing someone hold the node pointer unawared.
-		switch (type) {
-		case UFFS_TYPE_DIR:
-			node->u.dir.parent = parent;
-			node->u.dir.serial = serial;
-			node->u.dir.block = newBlock;
-			node->u.dir.checksum = data_sum;
-			break;
-		case UFFS_TYPE_FILE:
-			node->u.file.parent = parent;
-			node->u.file.serial = serial;
-			node->u.file.block = newBlock;
-			node->u.file.checksum = data_sum;
-			break;
-		case UFFS_TYPE_DATA:
-			node->u.data.parent = parent;
-			node->u.data.serial = serial;
-			node->u.data.block = newBlock;
-			break;
-		default:
-			uffs_Perror(UFFS_MSG_SERIOUS, "UNKNOW TYPE");
-			break;
-		}
-
-		newNode->u.list.block = bc->block;
-
-		// if the recovered block is a bad block, it's time to process it.
-		if (HAVE_BADBLOCK(dev) && dev->bad.block == newNode->u.list.block) {
-			//uffs_Perror(UFFS_MSG_SERIOUS, "Still have bad block ?");
-			uffs_BadBlockProcess(dev, newNode);
-		}
-		else {
-			// erase recovered block, put it back to erased block list.
-			if (uffs_IsThisBlockUsed(dev, bc)) {
-				uffs_FlashEraseBlock(dev, bc->block);
-			}
-			if (HAVE_BADBLOCK(dev))
-				uffs_BadBlockProcess(dev, newNode);
-			else
-				uffs_TreeInsertToErasedListTail(dev, newNode);
-		}
-	}
-	else {
-
-		uffs_BlockInfoExpire(dev, bc, UFFS_ALL_PAGES);  // FIXME: this might not be necessary ...
-
-		uffs_FlashEraseBlock(dev, newBlock);
-		newNode->u.list.block = newBlock;
-		if (HAVE_BADBLOCK(dev))
-			uffs_BadBlockProcess(dev, newNode);
-		else
-			uffs_TreeInsertToErasedListTail(dev, newNode);
-	}
-
-	if (dev->buf.dirtyGroup[slot].dirty != NULL ||
-			dev->buf.dirtyGroup[slot].count != 0) {
-		uffs_Perror(UFFS_MSG_NORMAL, "still have dirty buffer ?");
-	}
-
-	uffs_BlockInfoPut(dev, newBc);
-
-ext:
-	return (succRecover == U_TRUE ? U_SUCC : U_FAIL);
-
-}
-
-
-
-/** 
- * \brief flush buffer to a new block which is not registered in tree
- *
- * Scenario:
- *		1. get a new block
- *		2. write pages in dirty list to new block, sorted by page_id
- *		3. insert new block to tree
- */
-static URET _BufFlush_NewBlock(uffs_Device *dev, int slot)
-{
-	u8 type;
-	TreeNode *node;
-	uffs_BlockInfo *bc;
-	URET ret;
-
-	ret = U_FAIL;
-
-	node = uffs_TreeGetErasedNode(dev);
-	if (node == NULL) {
-		uffs_Perror(UFFS_MSG_NOISY, "no erased block!");
-		goto ext;
-	}
-	bc = uffs_BlockInfoGet(dev, node->u.list.block);
-	if (bc == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "get block info fail!");
-		uffs_InsertToErasedListHead(dev, node); //put node back to erased list
-		goto ext;
-	}
-
-	type = dev->buf.dirtyGroup[slot].dirty->type;
-	
-	ret = uffs_BufFlush_Exist_With_BlockCover(dev, slot, node, bc);
-
-	if (ret == U_SUCC)
-		uffs_InsertNodeToTree(dev, type, node);
-	else {
-		uffs_FlashEraseBlock(dev, bc->block);
-		uffs_TreeInsertToErasedListTail(dev, node);
-	}		
-
-	uffs_BlockInfoPut(dev, bc);
-ext:
-	return ret;
-}
-
-
-/** 
- * \brief flush buffer to a block with enough free pages 
- *  
- *  pages in dirty list must be sorted by page_id to write to flash
- */
-static
-URET
- uffs_BufFlush_Exist_With_Enough_FreePage(
-		uffs_Device *dev,
-		int slot,			//!< dirty group slot
-		TreeNode *node,		//!< tree node
-		uffs_BlockInfo *bc	//!< block info (Source, also destination)
-		)		
-{
-	u16 page;
-	uffs_Buf *buf;
-	uffs_Tags *tag;
-	URET ret = U_FAIL;
-	int x;
-
-//	uffs_Perror(UFFS_MSG_NOISY,
-//					"Flush buffers with Enough Free Page to block %d",
-//					bc->block);
-
-	for (page = 1;	// page 0 won't be a free page, so we start from 1.
-			page < dev->attr->pages_per_block &&
-			dev->buf.dirtyGroup[slot].count > 0;		//still has dirty pages?
-			page++) {
-
-		// locate to the free page (make sure the page is a erased page, so an unclean page won't sneak in)
-		for (; page < dev->attr->pages_per_block; page++) {
-			if (uffs_IsPageErased(dev, bc, page))
-				break;
-		}
-
-		if (!uffs_Assert(page < dev->attr->pages_per_block, "no free page? buf flush not finished."))
-			break;
-
-		buf = _FindMinimunPageIdFromDirtyList(dev->buf.dirtyGroup[slot].dirty);
-		if (buf == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS,
-						"count > 0, but no dirty pages in list ?");
-			goto ext;
-		}
-
-		//write the dirty page (id: buf->page_id) to page (free page)
-		tag = GET_TAG(bc, page);
-		TAG_DIRTY_BIT(tag) = TAG_DIRTY;
-		TAG_VALID_BIT(tag) = TAG_VALID;
-		TAG_BLOCK_TS(tag) = uffs_GetBlockTimeStamp(dev, bc);
-		TAG_DATA_LEN(tag) = buf->data_len;
-		TAG_TYPE(tag) = buf->type;
-		TAG_PARENT(tag) = buf->parent;
-		TAG_SERIAL(tag) = buf->serial;
-		TAG_PAGE_ID(tag) = (u8)(buf->page_id);
-
-		SEAL_TAG(tag);
-
-		x = uffs_FlashWritePageCombine(dev, bc->block, page, buf, tag);
-		if (x == UFFS_FLASH_IO_ERR) {
-			uffs_Perror(UFFS_MSG_NORMAL, "I/O error <1>?");
-			goto ext;
-		}
-		else if (x == UFFS_FLASH_BAD_BLK) {
-			uffs_Perror(UFFS_MSG_NORMAL, "Bad blcok found, start block cover ...");
-			ret = uffs_BufFlush_Exist_With_BlockCover(dev, slot, node, bc);
-			goto ext;
-		}
-		else {
-			if(_BreakFromDirty(dev, buf) == U_SUCC) {
-				buf->mark = UFFS_BUF_VALID;
-				_MoveNodeToHead(dev, buf);
-			}
-		}
-	} //end of for
-	
-	if (dev->buf.dirtyGroup[slot].dirty != NULL ||
-			dev->buf.dirtyGroup[slot].count != 0) {
-		uffs_Perror(UFFS_MSG_NORMAL, "still has dirty buffer ?");
-	}
-	else {
-		ret = U_SUCC;
-	}
-
-ext:
-	return ret;
-}
-
-
-URET _BufFlush(struct uffs_DeviceSt *dev,
-			   UBOOL force_block_recover, int slot)
-{
-	uffs_Buf *dirty;
-	TreeNode *node;
-	uffs_BlockInfo *bc;
-	u16 n;
-	URET ret;
-	u8 type;
-	u16 parent;
-	u16 serial;
-	int block;
-	
-	if (dev->buf.dirtyGroup[slot].count == 0) {
-		return U_SUCC;
-	}
-
-	dirty = dev->buf.dirtyGroup[slot].dirty;
-
-	if (_CheckDirtyList(dirty) == U_FAIL)
-		return U_FAIL;
-
-	type = dirty->type;
-	parent = dirty->parent;
-	serial = dirty->serial;
-
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		node = uffs_TreeFindDirNode(dev, serial);
-		break;
-	case UFFS_TYPE_FILE:
-		node = uffs_TreeFindFileNode(dev, serial);
-		break;
-	case UFFS_TYPE_DATA:
-		node = uffs_TreeFindDataNode(dev, parent, serial);
-		break;
-	default:
-		uffs_Perror(UFFS_MSG_SERIOUS, "unknown type");
-		return U_FAIL;
-	}
-
-	if (node == NULL) {
-		//not found in the tree, need to generate a new block
-		ret = _BufFlush_NewBlock(dev, slot);
-	}
-	else {
-		switch (type) {
-		case UFFS_TYPE_DIR:
-			block = node->u.dir.block;
-			break;
-		case UFFS_TYPE_FILE:
-			block = node->u.file.block;
-			break;
-		case UFFS_TYPE_DATA:
-			block = node->u.data.block;
-			break;
-		default:
-			uffs_Perror(UFFS_MSG_SERIOUS, "unknown type.");
-			return U_FAIL;
-		}
-		bc = uffs_BlockInfoGet(dev, block);
-		if(bc == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "get block info fail.");
-			return U_FAIL;
-		}
-
-		ret = uffs_BlockInfoLoad(dev, bc, UFFS_ALL_PAGES);
-		if (ret == U_SUCC) {
-
-			n = uffs_GetFreePagesCount(dev, bc);
-
-			if (n >= dev->buf.dirtyGroup[slot].count && !force_block_recover) {
-				//The free pages are enough for the dirty pages
-				ret = uffs_BufFlush_Exist_With_Enough_FreePage(dev,	slot, node, bc);
-			}
-			else {
-				ret = uffs_BufFlush_Exist_With_BlockCover(dev, slot, node, bc);
-			}
-		}
-		uffs_BlockInfoPut(dev, bc);
-	}
-
-	return ret;
-}
-
-static int _FindMostDirtyGroup(struct uffs_DeviceSt *dev)
-{
-	int i, slot = -1;
-	int max_count = 0;
-
-	for (i = 0; i < dev->cfg.dirty_groups; i++) {
-		if (dev->buf.dirtyGroup[i].dirty &&
-				dev->buf.dirtyGroup[i].lock == 0) {
-			if (dev->buf.dirtyGroup[i].count > max_count) {
-				max_count = dev->buf.dirtyGroup[i].count;
-				slot = i;
-			}
-		}
-	}
-
-	return slot;
-}
-
-/** lock dirty group */
-URET uffs_BufLockGroup(struct uffs_DeviceSt *dev, int slot)
-{
-	URET ret = U_FAIL;
-	if (slot >= 0 && slot < dev->cfg.dirty_groups) {
-		dev->buf.dirtyGroup[slot].lock++;
-		ret = U_SUCC;
-	}	
-	return ret;
-}
-
-/** unlock dirty group */
-URET uffs_BufUnLockGroup(struct uffs_DeviceSt *dev, int slot)
-{
-	URET ret = U_FAIL;
-
-	if (slot >= 0 && slot < dev->cfg.dirty_groups) {
-		if (dev->buf.dirtyGroup[slot].lock > 0)
-			dev->buf.dirtyGroup[slot].lock--;
-		else {
-			uffs_Perror(UFFS_MSG_SERIOUS, "Try to unlock an unlocked group ?");
-		}
-		ret = U_SUCC;
-	}	
-	return ret;
-}
-
-
-/** 
- * flush buffers to flash.
- * this will flush all dirty groups.
- * \param[in] dev uffs device
- */
-URET uffs_BufFlush(struct uffs_DeviceSt *dev)
-{
-	int slot;
-
-	slot = uffs_BufFindFreeGroupSlot(dev);
-	if (slot >= 0)
-		return U_SUCC;	// do nothing if there is free slot
-	else
-		return uffs_BufFlushMostDirtyGroup(dev);
-}
-
-/** 
- * flush most dirty group
- * \param[in] dev uffs device
- */
-URET uffs_BufFlushMostDirtyGroup(struct uffs_DeviceSt *dev)
-{
-	int slot;
-
-	slot = _FindMostDirtyGroup(dev);
-	if (slot >= 0) {
-		return _BufFlush(dev, U_FALSE, slot);
-	}
-	return U_SUCC;
-}
-
-/** 
- * flush buffers to flash
- * this will pick up a most dirty group,
- * and flush it if there is no free dirty group slot.
- *
- * \param[in] dev uffs device
- * \param[in] force_block_recover #U_TRUE: force a block recover
- *				 even there are enough free pages
- */
-URET uffs_BufFlushEx(struct uffs_DeviceSt *dev, UBOOL force_block_recover)
-{
-	int slot;
-
-	slot = uffs_BufFindFreeGroupSlot(dev);
-	if (slot >= 0) {
-		return U_SUCC;  //there is free slot, do nothing.
-	}
-	else {
-		slot = _FindMostDirtyGroup(dev);
-		return _BufFlush(dev, force_block_recover, slot);
-	}
-}
-
-/**
- * flush buffer group with given parent/serial num.
- *
- * \param[in] dev uffs device
- * \param[in] parent parent num of the group
- * \param[in] serial serial num of the group
- */
-URET uffs_BufFlushGroup(struct uffs_DeviceSt *dev, u16 parent, u16 serial)
-{
-	int slot;
-
-	slot = uffs_BufFindGroupSlot(dev, parent, serial);
-	if (slot >= 0) {
-		return _BufFlush(dev, U_FALSE, slot);
-	}
-
-	return U_SUCC;
-}
-
-/**
- * flush buffer group with given parent/serial num
- * and force_block_recover indicator.
- *
- * \param[in] dev uffs device
- * \param[in] parent parent num of the group
- * \param[in] serial serial num of group
- * \param[in] force_block_recover indicator
- */
-URET uffs_BufFlushGroupEx(struct uffs_DeviceSt *dev,
-						  u16 parent, u16 serial, UBOOL force_block_recover)
-{
-	int slot;
-
-	slot = uffs_BufFindGroupSlot(dev, parent, serial);
-	if (slot >= 0) {
-		return _BufFlush(dev, force_block_recover, slot);
-	}
-
-	return U_SUCC;
-}
-
-
-/**
- * flush buffer group/groups which match given parent num.
- *
- * \param[in] dev uffs device
- * \param[in] parent parent num of the group
- * \param[in] serial serial num of group
- * \param[in] force_block_recover indicator
- */
-URET uffs_BufFlushGroupMatchParent(struct uffs_DeviceSt *dev, u16 parent)
-{
-	int slot;
-	uffs_Buf *buf;
-	URET ret = U_SUCC;
-
-	for (slot = 0; slot < dev->cfg.dirty_groups && ret == U_SUCC; slot++) {
-		if (dev->buf.dirtyGroup[slot].dirty) {
-			buf = dev->buf.dirtyGroup[slot].dirty;
-			if (buf->parent == parent) {
-				ret = _BufFlush(dev, U_FALSE, slot);
-			}
-		}
-	}
-
-	return ret;
-}
-
-/**
- * find a free dirty group slot
- *
- * \param[in] dev uffs device
- * \return slot index (0 to MAX_DIRTY_BUF_GROUPS - 1) if found one,
- *			 otherwise return -1.
- */
-int uffs_BufFindFreeGroupSlot(struct uffs_DeviceSt *dev)
-{
-	int i, slot = -1;
-
-	for (i = 0; i < dev->cfg.dirty_groups; i++) {
-		if (dev->buf.dirtyGroup[i].dirty == NULL) {
-			slot = i;
-			break;
-		}
-	}
-	return slot;
-}
-
-/**
- * find a dirty group slot with given parent/serial num.
- *
- * \param[in] dev uffs device
- * \param[in] parent parent num of the group
- * \param[in] serial serial num of group
- * \return slot index (0 to MAX_DIRTY_BUF_GROUPS - 1) if found one,
- *			otherwise return -1.
- */
-int uffs_BufFindGroupSlot(struct uffs_DeviceSt *dev, u16 parent, u16 serial)
-{
-	uffs_Buf *buf;
-	int i, slot = -1;
-
-	for (i = 0; i < dev->cfg.dirty_groups; i++) {
-		if (dev->buf.dirtyGroup[i].dirty) {
-			buf = dev->buf.dirtyGroup[i].dirty;
-			if (buf->parent == parent && buf->serial == serial) {
-				slot = i;
-				break;
-			}
-		}
-	}
-	return slot;
-}
-
-/** 
- * \brief get a page buffer
- * \param[in] dev uffs device
- * \param[in] parent parent serial num
- * \param[in] serial serial num
- * \param[in] page_id page_id
- * \return return the buffer found in buffer list, if not found, return NULL.
- */
-uffs_Buf * uffs_BufGet(struct uffs_DeviceSt *dev,
-					   u16 parent, u16 serial, u16 page_id)
-{
-	uffs_Buf *p;
-
-	//first, check whether the buffer exist in buf list ?
-	p = uffs_BufFind(dev, parent, serial, page_id);
-
-	if (p) {
-		p->ref_count++;
-		_MoveNodeToHead(dev, p);
-	}
-
-	return p;
-}
-
-/** 
- * New generate a buffer
- */
-uffs_Buf *uffs_BufNew(struct uffs_DeviceSt *dev,
-					  u8 type, u16 parent, u16 serial, u16 page_id)
-{
-	uffs_Buf *buf;
-
-	buf = uffs_BufGet(dev, parent, serial, page_id);
-	if (buf) {
-		if (buf->ref_count > 1) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "When create new buf, \
-						an exist buffer has ref count %d, possibly bug!",
-						buf->ref_count);
-		}
-		else {
-			buf->data_len = 0;
-		}
-		_MoveNodeToHead(dev, buf);
-		return buf;
-	}
-
-	buf = _FindFreeBuf(dev);
-	if (buf == NULL) {
-		uffs_BufFlushMostDirtyGroup(dev);
-		buf = _FindFreeBuf(dev);
-		if (buf == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "no free page buf!");
-			return NULL;
-		}
-	}
-
-	buf->mark = UFFS_BUF_EMPTY;
-	buf->type = type;
-	buf->parent = parent;
-	buf->serial = serial;
-	buf->page_id = page_id;
-	buf->data_len = 0;
-	buf->ref_count++;
-	memset(buf->data, 0xff, dev->com.pg_data_size);
-
-	_MoveNodeToHead(dev, buf);
-	
-	return buf;	
-}
-
-
-
-/** 
- * get a page buffer
- * \param[in] dev uffs device
- * \param[in] type dir, file or data ?
- * \param[in] node node on the tree
- * \param[in] page_id page_id
- * \param[in] oflag the open flag of current file/dir object
- * \return return the buffer if found in buffer list, if not found in 
- *		buffer list, it will get a free buffer, and load data from flash.
- *		return NULL if not free buffer.
- */
-uffs_Buf *uffs_BufGetEx(struct uffs_DeviceSt *dev,
-						u8 type, TreeNode *node, u16 page_id, int oflag)
-{
-	uffs_Buf *buf;
-	u16 parent, serial, block, page;
-	uffs_BlockInfo *bc;
-
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		parent = node->u.dir.parent;
-		serial = node->u.dir.serial;
-		block = node->u.dir.block;
-		break;
-	case UFFS_TYPE_FILE:
-		parent = node->u.file.parent;
-		serial = node->u.file.serial;
-		block = node->u.file.block;
-		break;
-	case UFFS_TYPE_DATA:
-		parent = node->u.data.parent;
-		serial = node->u.data.serial;
-		block = node->u.data.block;
-		break;
-	default:
-		uffs_Perror(UFFS_MSG_SERIOUS, "unknown type");
-		return NULL;
-	}
-
-	buf = uffs_BufFind(dev, parent, serial, page_id);
-	if (buf) {
-		buf->ref_count++;
-		return buf;
-	}
-
-	buf = _FindFreeBuf(dev);
-	if (buf == NULL) {
-		uffs_BufFlushMostDirtyGroup(dev);
-		buf = _FindFreeBuf(dev);
-		if (buf == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "no free page buf!");
-			return NULL;
-		}
-
-		/* Note: if uffs_BufFlushMostDirtyGroup() flush the same block as we'll write to,
-		 *	the block will be changed to a new one! (and the content of 'node' is changed).
-		 *	So here we need to update block number from the new 'node'.
-		 */
-		switch (type) {
-		case UFFS_TYPE_DIR:
-			block = node->u.dir.block;
-			break;
-		case UFFS_TYPE_FILE:
-			block = node->u.file.block;
-			break;
-		case UFFS_TYPE_DATA:
-			block = node->u.data.block;
-			break;
-		default:
-			uffs_Perror(UFFS_MSG_SERIOUS, "unknown type");
-			return NULL;
-		}
-	}
-
-	bc = uffs_BlockInfoGet(dev, block);
-	if (bc == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Can't get block info!");
-		return NULL;
-	}
-	
-	page = uffs_FindPageInBlockWithPageId(dev, bc, page_id);
-	if (page == UFFS_INVALID_PAGE) {
-		uffs_BlockInfoPut(dev, bc);
-		uffs_Perror(UFFS_MSG_SERIOUS, "can't find right page ? block %d page_id %d", bc->block, page_id);
-		return NULL;
-	}
-	page = uffs_FindBestPageInBlock(dev, bc, page);
-	if (!uffs_Assert(page != UFFS_INVALID_PAGE, "got an invalid page?\n"))
-		return NULL;
-
-	uffs_BlockInfoPut(dev, bc);
-
-	buf->mark = UFFS_BUF_EMPTY;
-	buf->type = type;
-	buf->parent = parent;
-	buf->serial = serial;
-	buf->page_id = page_id;
-
-	if (UFFS_FLASH_HAVE_ERR(uffs_FlashReadPage(dev, block, page, buf, oflag & UO_NOECC ? U_TRUE : U_FALSE))) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "can't load page from flash !");
-		return NULL;
-	}
-
-	buf->data_len = TAG_DATA_LEN(GET_TAG(bc, page));
-	buf->mark = UFFS_BUF_VALID;
-	buf->ref_count++;
-
-	_MoveNodeToHead(dev, buf);
-	
-	return buf;
-
-}
-
-/** 
- * \brief Put back a page buffer, make reference count decrease by one
- * \param[in] dev uffs device
- * \param[in] buf buffer to be put back
- */
-URET uffs_BufPut(uffs_Device *dev, uffs_Buf *buf)
-{
-	URET ret = U_FAIL;
-
-	dev = dev;
-	if (buf == NULL) {
-		uffs_Perror(UFFS_MSG_NORMAL,  "Can't put an NULL buffer!");
-	}
-	else if (buf->ref_count == 0) {
-		uffs_Perror(UFFS_MSG_NORMAL,  "Putting an unused page buffer ? ");
-	}
-	else if (buf->ref_count == CLONE_BUF_MARK) {
-		uffs_Perror(UFFS_MSG_NORMAL, "Putting an cloned page buffer ? ");
-		ret = uffs_BufFreeClone(dev, buf);
-	}
-	else {
-		buf->ref_count--;
-		ret = U_SUCC;
-	}
-
-	return ret;
-}
-
-
-/** 
- * \brief clone from an exist buffer.
-		allocate memory for new buffer, and copy data from original buffer if 
-		original buffer is not NULL. 
- * \param[in] dev uffs device
- * \param[in] buf page buffer to be clone from.
- *				if NULL presented here, data copy will not be processed
- * \return return the cloned page buffer, all data copied from source
- * \note the cloned buffer is not linked in page buffer list in uffs device,
- *			so you should use #uffs_BufFreeClone instead of #uffs_BufPut
- *			when you put back or release buffer
- */
-uffs_Buf * uffs_BufClone(uffs_Device *dev, uffs_Buf *buf)
-{
-	uffs_Buf *p;
-
-	p = _FindFreeBufEx(dev, 1);
-	if (p == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"no enough free pages for clone! " \
-					"Please increase Clone Buffer Count threshold.");
-	}
-	else {
-		_BreakFromBufList(dev, p);
-
-		if (buf) {
-			p->parent = buf->parent;
-			p->type = buf->type;
-			p->serial = buf->serial;
-			p->page_id = buf->page_id;
-			
-			p->data_len = buf->data_len;
-			//athough the valid data length is .data_len,
-			//but we still need copy the whole buffer, include header
-			memcpy(p->header, buf->header, dev->com.pg_size);
-		}
-		p->next = p->prev = NULL; // the cloned one is not linked to device buffer
-		p->next_dirty = p->prev_dirty = NULL;
-		p->ref_count = CLONE_BUF_MARK;	// CLONE_BUF_MARK indicates that
-										// this is an cloned buffer
-	}
-
-	return p;
-}
-
-/** 
- * \brief release cloned buffer
- * \param[in] dev uffs device
- * \param[in] buf cloned buffer
- */
-URET uffs_BufFreeClone(uffs_Device *dev, uffs_Buf *buf)
-{
-	dev = dev; //make compiler happy
-	if (!buf)
-		return U_FAIL;
-
-	if (buf->ref_count != CLONE_BUF_MARK) {
-		/* a cloned buffer must have a ref_count of CLONE_BUF_MARK */
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"Try to release a non-cloned page buffer ?");
-		return U_FAIL;
-	}
-
-	buf->ref_count = 0;
-	buf->mark = UFFS_BUF_EMPTY;
-	_LinkToBufListTail(dev, buf);
-
-	return U_SUCC;
-}
-
-
-
-UBOOL uffs_BufIsAllFree(struct uffs_DeviceSt *dev)
-{
-	uffs_Buf *buf = dev->buf.head;
-
-	while (buf) {
-		if(buf->ref_count != 0) return U_FALSE;
-		buf = buf->next;
-	}
-
-	return U_TRUE;
-}
-
-UBOOL uffs_BufIsAllEmpty(struct uffs_DeviceSt *dev)
-{
-	uffs_Buf *buf = dev->buf.head;
-
-	while (buf) {
-		if(buf->mark != UFFS_BUF_EMPTY) return U_FALSE;
-		buf = buf->next;
-	}
-
-	return U_TRUE;
-}
-
-
-URET uffs_BufSetAllEmpty(struct uffs_DeviceSt *dev)
-{
-	uffs_Buf *buf = dev->buf.head;
-
-	while (buf) {
-		buf->mark = UFFS_BUF_EMPTY;
-		buf = buf->next;
-	}
-	return U_SUCC;
-}
-
-
-void uffs_BufIncRef(uffs_Buf *buf)
-{
-	buf->ref_count++;
-}
-
-void uffs_BufDecRef(uffs_Buf *buf)
-{
-	if (buf->ref_count > 0)
-		buf->ref_count--;
-}
-
-/** mark buffer as #UFFS_BUF_EMPTY if ref_count == 0,
-	and discard all data it holds */
-void uffs_BufMarkEmpty(uffs_Device *dev, uffs_Buf *buf)
-{
-	if (buf->mark != UFFS_BUF_EMPTY) {
-		if (buf->ref_count == 0) {
-			if (buf->mark == UFFS_BUF_DIRTY)
-				_BreakFromDirty(dev, buf);
-			buf->mark = UFFS_BUF_EMPTY;
-		}
-	}
-}
-
-#if 0
-static UBOOL _IsBufInDirtyList(struct uffs_DeviceSt *dev, uffs_Buf *buf)
-{
-	uffs_Buf *p = dev->buf.dirtyGroup[slot].dirty;
-
-	while (p) {
-		if(p == buf) return U_TRUE;
-		p = p->next_dirty;
-	}
-
-	return U_FALSE;
-}
-#endif
-
-URET uffs_BufWrite(struct uffs_DeviceSt *dev,
-				   uffs_Buf *buf, void *data, u32 ofs, u32 len)
-{
-	int slot;
-
-	if(ofs + len > dev->com.pg_data_size) {
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"data length out of range! %d+%d", ofs, len);
-		return U_FAIL;
-	}
-
-	slot = uffs_BufFindGroupSlot(dev, buf->parent, buf->serial);
-
-	if (slot < 0) {
-		// need to take a free slot
-		slot = uffs_BufFindFreeGroupSlot(dev);
-		if (slot < 0) {
-			// no free slot ? flush buffer
-			if (uffs_BufFlushMostDirtyGroup(dev) != U_SUCC)
-				return U_FAIL;
-
-			slot = uffs_BufFindFreeGroupSlot(dev);
-			if (slot < 0) {
-				// still no free slot ??
-				uffs_Perror(UFFS_MSG_SERIOUS, "no free slot ?");
-				return U_FAIL;
-			}
-		}
-	}
-
-	if (data)
-		memcpy(buf->data + ofs, data, len);
-	else
-		memset(buf->data + ofs, 0, len);	// if data == NULL, then fill all '\0'.
-
-	if (ofs + len > buf->data_len) 
-		buf->data_len = ofs + len;
-	
-	if (_IsBufInInDirtyList(dev, slot, buf) == U_FALSE) {
-		_LinkToDirtyList(dev, slot, buf);
-	}
-
-	if (dev->buf.dirtyGroup[slot].count >= dev->buf.dirty_buf_max) {
-		if (uffs_BufFlushGroup(dev, buf->parent, buf->serial) != U_SUCC) {
-			return U_FAIL;
-		}
-	}
-
-	return U_SUCC;
-}
-
-URET uffs_BufRead(struct uffs_DeviceSt *dev,
-				  uffs_Buf *buf, void *data, u32 ofs, u32 len)
-{
-	u32 readSize;
-	u32 pg_data_size = dev->com.pg_data_size;
-
-	readSize = (ofs >= pg_data_size ? 
-					0 : (ofs + len >= pg_data_size ? pg_data_size - ofs : len)
-				);
-
-	if (readSize > 0) 
-		memcpy(data, buf->data + ofs, readSize);
-
-	return U_SUCC;
-}
-
-
-
-
-
-
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_crc.c b/components/dfs/filesystems/uffs/src/uffs/uffs_crc.c
deleted file mode 100644
index 0ef95bf7f1..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_crc.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-/** 
- * \file uffs_crc.c
- * \brief simple CRC functions
- * \author Ricky Zheng
- * \note Created in 23 Nov, 2011
- */
-
-#include "uffs/uffs_crc.h"
-
-/* CRC16 Table */
-static const u16 CRC16_TBL[256] = {
-  0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
-  0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
-  0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
-  0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
-  0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
-  0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
-  0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
-  0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
-  0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
-  0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
-  0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
-  0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
-  0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
-  0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
-  0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
-  0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
-  0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
-  0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
-  0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
-  0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
-  0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
-  0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
-  0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
-  0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
-  0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
-  0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
-  0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
-  0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
-  0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
-  0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
-  0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
-  0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
-};
-
-#define CRC16(v, x) v = ((v) >> 8) ^ CRC16_TBL[((v) ^ (x)) & 0x00ff]
-
-u16 uffs_crc16update(const void *data, int length, u16 crc)
-{
-	int i;
-	const u8 *p = (const u8 *)data;
-	for (i = 0; i < length; i++, p++) {
-		CRC16(crc, *p);
-	}
-
-	return crc;
-}
-
-u16 uffs_crc16sum(const void *data, int length)
-{
-	return uffs_crc16update(data, length, 0xFFFF);
-}
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_debug.c b/components/dfs/filesystems/uffs/src/uffs/uffs_debug.c
deleted file mode 100644
index 5f6c1558e4..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_debug.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_debug.c
- * \brief output debug messages
- * \author Ricky Zheng, created 10th May, 2005
- */
-#include "uffs_config.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-
-#if !defined(RT_THREAD)
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-
-#define MAX_DEBUG_MSG_LINE_LENGTH	128
-
-static struct uffs_DebugMsgOutputSt * m_ops = NULL;
-static int m_msg_level = UFFS_MSG_NORMAL;
-
-static void uffs_vprintf(const char *fmt, va_list args)
-{
-	char line_buf[MAX_DEBUG_MSG_LINE_LENGTH];
-
-	if (m_ops && m_ops->output) {
-#ifdef _COMPILER_CLIB_DO_NOT_HAVE_VSNPRINTF_
-		vsprintf(line_buf, fmt, args);
-#else
-		vsnprintf(line_buf, MAX_DEBUG_MSG_LINE_LENGTH, fmt, args);
-#endif
-		m_ops->output(line_buf);
-	}
-}
-
-/**
- * \brief Initialize debug message output functions
- */
-URET uffs_InitDebugMessageOutput(struct uffs_DebugMsgOutputSt *ops, int msg_level)
-{
-	m_ops = ops;
-
-	if (m_ops == NULL || m_ops->output == NULL) {
-		m_ops = NULL;
-		return U_FAIL;
-	}
-	else if (m_ops->vprintf == NULL)
-		m_ops->vprintf = uffs_vprintf;
-
-	m_msg_level = msg_level;
-
-	return U_SUCC;
-}
-
-void uffs_DebugSetMessageLevel(int msg_level)
-{
-	m_msg_level = msg_level;
-}
-#endif
-
-#ifdef CONFIG_ENABLE_UFFS_DEBUG_MSG
-
-/**
- * \brief The main debug message output function
- */
-#if !defined(RT_THREAD)
-void uffs_DebugMessage(int level, const char *prefix,
-					   const char *suffix, const char *errFmt, ...)
-{
-	va_list arg;
-
-	if (m_ops && level >= m_msg_level) {
-		if (prefix)
-			m_ops->output(prefix);
-
-		va_start(arg, errFmt);
-		m_ops->vprintf(errFmt, arg);
-		va_end(arg);
-
-		if (suffix)
-			m_ops->output(suffix);
-	}
-}
-
-/**
- * \brief Called when an assert occurred.
- * This method is called when an assert occurred and should stop the
- * application from running, as this there is a severe error condition.
- * \param[in] file Source filename
- * \param[in] line Source line of code
- * \param[in] msg Assert message
- */
-void uffs_AssertCall(const char *file, int line, const char *msg, ...)
-{
-	va_list args;
-	char buf[32];
-
-	if (m_ops && m_msg_level < UFFS_MSG_NOMSG) {
-		m_ops->output("ASSERT ");
-		m_ops->output(file);
-		sprintf(buf, ":%d - :", line);
-		m_ops->output(buf);
-		va_start(args, msg);
-		m_ops->vprintf(msg, args);
-		va_end(args);
-		m_ops->output(TENDSTR);
-	}
-}
-#endif
-
-#ifdef _COMPILER_DO_NOT_SUPPORT_MACRO_VALIST_REPLACE_
-void uffs_Perror(int level, const char *fmt, ...)
-{
-	va_list args;
-	if (m_ops && level >= m_msg_level) {
-		va_start(args, fmt);
-		m_ops->vprintf(fmt, args);
-		va_end(args);
-		m_ops->output(TENDSTR);
-	}
-}
-
-void uffs_PerrorRaw(int level, const char *fmt, ...)
-{
-	va_list args;
-	if (m_ops && level >= m_msg_level) {
-		va_start(args, fmt);
-		m_ops->vprintf(fmt, args);
-		va_end(args);
-	}
-}
-
-UBOOL uffs_Assert(UBOOL expr, const char *fmt, ...)
-{
-	va_list args;
-	if (m_ops && !expr && m_msg_level < UFFS_MSG_NOMSG) {
-		m_ops->output("ASSERT FAILED: ");
-		va_start(args, fmt);
-		m_ops->vprintf(fmt, args);
-		va_end(args);
-		m_ops->output(TENDSTR);
-	}
-	return expr ? U_TRUE : U_FALSE;
-}
-#endif
-
-#else
-
-void uffs_DebugMessage(int level, const char *prefix, const char *suffix, const char *errFmt, ...) {};
-void uffs_AssertCall(const char *file, int line, const char *msg, ...) {};
-
-#ifdef _COMPILER_DO_NOT_SUPPORT_MACRO_VALIST_REPLACE_
-void uffs_Perror(int level, const char *fmt, ...) {}
-void uffs_PerrorRaw(int level, const char *fmt, ...) {}
-UBOOL uffs_Assert(UBOOL expr, const char *fmt, ...) { return expr ? U_TRUE : U_FALSE; }
-#endif
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_device.c b/components/dfs/filesystems/uffs/src/uffs/uffs_device.c
deleted file mode 100644
index 7b6a14de81..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_device.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_device.c
- * \brief uffs device operation
- * \author Ricky Zheng, created 10th May, 2005
- */
-#include "uffs_config.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_mtb.h"
-#include <string.h>
-
-#define PFX "dev : "
-
-
-#ifdef CONFIG_USE_PER_DEVICE_LOCK
-void uffs_DeviceInitLock(uffs_Device *dev)
-{
-	uffs_SemCreate(&dev->lock.sem);
-	dev->lock.task_id = UFFS_TASK_ID_NOT_EXIST;
-	dev->lock.counter = 0;
-}
-
-void uffs_DeviceReleaseLock(uffs_Device *dev)
-{
-	uffs_SemDelete(&dev->lock.sem);
-}
-
-void uffs_DeviceLock(uffs_Device *dev)
-{
-	uffs_SemWait(dev->lock.sem);
-	
-	if (dev->lock.counter != 0) {
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"Lock device, counter %d NOT zero?!", dev->lock.counter);
-	}
-
-	dev->lock.counter++;
-}
-
-void uffs_DeviceUnLock(uffs_Device *dev)
-{
-	dev->lock.counter--;
-
-	if (dev->lock.counter != 0) {
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"Unlock device, counter %d NOT zero?!", dev->lock.counter);
-	}
-	
-	uffs_SemSignal(dev->lock.sem);
-}
-
-#else
-
-/* dummy stubs */
-void uffs_DeviceInitLock(uffs_Device *dev) {}
-void uffs_DeviceReleaseLock(uffs_Device *dev) {}
-void uffs_DeviceLock(uffs_Device *dev) {}
-void uffs_DeviceUnLock(uffs_Device *dev) {}
-
-#endif
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_ecc.c b/components/dfs/filesystems/uffs/src/uffs/uffs_ecc.c
deleted file mode 100644
index 3d10c2d3f0..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_ecc.c
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_ecc.c
- * \brief ecc maker and correct
- * \author Ricky Zheng, created in 12th Jun, 2005
- */
-#include "uffs_config.h"
-#include "uffs/uffs_fs.h"
-#include <string.h>
-
-#define PFX "ecc : "
-
-static const u8 bits_tbl[256] = {
-	0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
-	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-	3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-	3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-	3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-	3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-	4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8,
-};
-
-static const u8 line_parity_tbl[16] = {
-	0x00, 0x02, 0x08, 0x0a, 0x20, 0x22, 0x28, 0x2a,
-	0x80, 0x82, 0x88, 0x8a, 0xa0, 0xa2, 0xa8, 0xaa
-};
-
-static const u8 line_parity_prime_tbl[16] = {
-	0x00, 0x01, 0x04, 0x05, 0x10, 0x11, 0x14, 0x15,
-	0x40, 0x41, 0x44, 0x45, 0x50, 0x51, 0x54, 0x55
-};
-
-static const u8 column_parity_tbl[256] = {
-	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
-	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, 
-	0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
-	0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, 
-	0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
-	0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, 
-	0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
-	0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, 
-	0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
-	0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, 
-	0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
-	0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, 
-	0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
-	0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, 
-	0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
-	0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, 
-	0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
-	0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, 
-	0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
-	0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, 
-	0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
-	0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, 
-	0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
-	0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, 
-	0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
-	0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, 
-	0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
-	0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, 
-	0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
-	0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, 
-	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
-	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, 
-};
-
-/**
- * calculate 3 bytes ECC for 256 bytes data.
- *
- * \param[in] data input data
- * \param[out] ecc output ecc
- * \param[in] length of data in bytes
- */
-static void uffs_EccMakeChunk256(const void *data, void *ecc, u16 len)
-{
-	u8 *pecc = (u8 *)ecc;
-	const u8 *p = (const u8 *)data;
-	u8 b, col_parity = 0, line_parity = 0, line_parity_prime = 0;
-	u16 i;
-
-	for (i = 0; i < len; i++) {
-		b = column_parity_tbl[*p++];
-		col_parity ^= b;
-		if (b & 0x01) { // odd number of bits in the byte
-			line_parity ^= i;
-			line_parity_prime ^= ~i;
-		}
-	}
-
-	// ECC layout:
-	// Byte[0]  P64   | P64'   | P32  | P32'  | P16  | P16'  | P8   | P8'
-	// Byte[1]  P1024 | P1024' | P512 | P512' | P256 | P256' | P128 | P128'
-	// Byte[2]  P4    | P4'    | P2   | P2'   | P1   | P1'   | 1    | 1
-	pecc[0] = ~(line_parity_tbl[line_parity & 0xf] |
-				line_parity_prime_tbl[line_parity_prime & 0xf]);
-	pecc[1] = ~(line_parity_tbl[line_parity >> 4] |
-				line_parity_prime_tbl[line_parity_prime >> 4]);
-	pecc[2] = (~col_parity) | 0x03;
-
-}
-
-
-/**
- * calculate ECC. (3 bytes ECC per 256 data)
- *
- * \param[in] data input data
- * \param[in] data_len length of data in byte
- * \param[out] ecc output ecc
- *
- * \return length of ECC in byte. (3 bytes ECC per 256 data) 
- */
-int uffs_EccMake(const void *data, int data_len, void *ecc)
-{
-	const u8 *p_data = (const u8 *)data;
-	u8 *p_ecc = (u8 *)ecc;
-	int len;
-
-	if (data == NULL || ecc == NULL)
-		return 0;
-
-	while (data_len > 0) {
-		len = data_len > 256 ? 256 : data_len;
-		uffs_EccMakeChunk256(p_data, p_ecc, len);
-		data_len -= len;
-		p_data += len;
-		p_ecc += 3;
-	}
-
-	return p_ecc - (u8 *)ecc;
-}
-
-/**
- * perform ECC error correct for 256 bytes data chunk.
- *
- * \param[in|out] data input data to be corrected
- * \param[in] read_ecc 3 bytes ECC read from storage
- * \param[in] test_ecc 3 bytes ECC calculated from data
- * \param[in] errtop top position of error
- *
- * \return:  0 -- no error
- *			-1 -- can not be corrected
- *			>0 -- how many bits corrected
- */
-static int uffs_EccCorrectChunk256(void *data, void *read_ecc,
-								   const void *test_ecc, int errtop)
-{
-	u8 d0, d1, d2;		/* deltas */
-	u8 *p = (u8 *)data;
-	u8 *pread_ecc = (u8 *)read_ecc, *ptest_ecc = (u8 *)test_ecc;
-
-	d0 = pread_ecc[0] ^ ptest_ecc[0];
-	d1 = pread_ecc[1] ^ ptest_ecc[1];
-	d2 = pread_ecc[2] ^ ptest_ecc[2];
-	
-	if ((d0 | d1 | d2) == 0)
-		return 0;
-	
-	if( ((d0 ^ (d0 >> 1)) & 0x55) == 0x55 &&
-	    ((d1 ^ (d1 >> 1)) & 0x55) == 0x55 &&
-	    ((d2 ^ (d2 >> 1)) & 0x54) == 0x54)
-	{
-		// Single bit (recoverable) error in data
-
-		u8 b;
-		u8 bit;
-		
-		bit = b = 0;		
-		
-		if(d1 & 0x80) b |= 0x80;
-		if(d1 & 0x20) b |= 0x40;
-		if(d1 & 0x08) b |= 0x20;
-		if(d1 & 0x02) b |= 0x10;
-		if(d0 & 0x80) b |= 0x08;
-		if(d0 & 0x20) b |= 0x04;
-		if(d0 & 0x08) b |= 0x02;
-		if(d0 & 0x02) b |= 0x01;
-
-		if(d2 & 0x80) bit |= 0x04;
-		if(d2 & 0x20) bit |= 0x02;
-		if(d2 & 0x08) bit |= 0x01;
-
-		if (b >= errtop) return -1;
-
-		p[b] ^= (1 << bit);
-		
-		return 1;
-	}
-	
-	if ((bits_tbl[d0] + bits_tbl[d1] + bits_tbl[d2]) == 1) {
-		// error in ecc, no action need		
-		return 1;
-	}
-	
-	// Unrecoverable error
-	return -1;
-}
-
-/**
- * perform ECC error correct
- *
- * \param[in|out] data input data to be corrected
- * \param[in] data_len length of data in byte
- * \param[in] read_ecc ECC read from storage
- * \param[in] test_ecc ECC calculated from data
- *
- * \return:  0 -- no error
- *			-1 -- can not be corrected
- *			>0 -- how many bits corrected
- */
-
-int uffs_EccCorrect(void *data, int data_len,
-					void *read_ecc, const void *test_ecc)
-{
-	u8 *p_data = (u8 *)data;
-	u8 *p_read_ecc = (u8 *)read_ecc;
-	u8 *p_test_ecc = (u8 *)test_ecc;
-	int total = 0, ret, len;
-
-	if (data == NULL || read_ecc == NULL || test_ecc == NULL)
-		return -1;
-
-	while (data_len > 0) {
-		len = (data_len > 256 ? 256 : data_len);
-		ret = uffs_EccCorrectChunk256(p_data, p_read_ecc, p_test_ecc, len);
-		if (ret < 0) {
-			total = ret;
-			break;
-		}
-		else
-			total += ret;
-
-		p_data += len;
-		p_read_ecc += 3;
-		p_test_ecc += 3;
-		data_len -= len;
-	}
-
-	return total;
-
-}
-
-/** 
- * generate 12 bit ecc for 8 bytes data. 
- *	(use 0xFF padding if the data length is less then 8 bytes)
- *
- * \param[in] data input data
- * \param[in] data_len length of data in byte
- *
- * \return 12 bits ECC data (lower 12 bits).
- */
-u16 uffs_EccMake8(void *data, int data_len)
-{
-	u8 *p = (u8 *)data;
-	u8 b, col_parity = 0, line_parity = 0, line_parity_prime = 0;
-	u8 i;
-	u16 ecc = 0;
-
-
-	data_len = (data_len > 8 ? 8 : data_len);
-
-	for (i = 0; i < data_len; i++) {
-		b = column_parity_tbl[*p++];
-		col_parity ^= b;
-		if (b & 0x01) { // odd number of bits in the byte
-			line_parity ^= i;
-			line_parity_prime ^= ~i;
-		}
-	}
-
-	// ECC layout:
-	// row:         (1) | (1)  | P32 | P32' | P16 | P16' | P8  | P8'
-	// column:      P4  | P4'  | P2  | P2'  | P1  | P1'  | (1) | (1)
-	// 12-bit ecc:  P32 | P32' | P16 | P16' | P8  | P8'  | P4  | P4' | P2 | P2' | P1 | P1' |
-	ecc = (~(
-			line_parity_tbl[line_parity & 0xf] |
-			line_parity_prime_tbl[line_parity_prime & 0xf]
-			)) << 6;
-	ecc |= (((~col_parity) >> 2) & 0x3f);
-
-	return ecc & 0xfff;
-}
-
-/**
- * correct 8 bytes data from 12 bits ECC
- *
- * \param[in|out] data input data
- * \param[in] read_ecc ecc read from storage
- * \param[in] test_ecc ecc calculated from data
- * \param[in] errtop top position of error.
- *
- * \return:  0 -- no error
- *			-1 -- can not be corrected
- *			>0 -- how many bits corrected
- */
-int uffs_EccCorrect8(void *data, u16 read_ecc, u16 test_ecc, int errtop)
-{
-	u8 d0, d1;			/* deltas */
-	u8 *p = (u8 *)data;
-
-	read_ecc &= 0xfff;
-	test_ecc &= 0xfff;
-
-	d0 = (read_ecc >> 6) ^ (test_ecc >> 6);
-	d1 = (read_ecc & 0x3f) ^ (test_ecc & 0x3f);
-
-	if ((d0 | d1) == 0)
-		return 0;
-	
-	if( ((d0 ^ (d0 >> 1)) & 0x15) == 0x15 &&
-	    ((d1 ^ (d1 >> 1)) & 0x15) == 0x15)
-	{
-		// Single bit (recoverable) error in data
-
-		u8 b;
-		u8 bit;
-		
-		bit = b = 0;		
-		
-		if(d0 & 0x20) b |= 0x04;
-		if(d0 & 0x08) b |= 0x02;
-		if(d0 & 0x02) b |= 0x01;
-
-		if(d1 & 0x20) bit |= 0x04;
-		if(d1 & 0x08) bit |= 0x02;
-		if(d1 & 0x02) bit |= 0x01;
-
-		if (b >= (u8)errtop) return -1;
-		if (bit >= 8) return -1;
-
-		p[b] ^= (1 << bit);
-		
-		return 1;
-	}
-	
-	if ((bits_tbl[d0] + bits_tbl[d1]) == 1) {
-		// error in ecc, no action need		
-		return 1;
-	}
-	
-	// Unrecoverable error
-	return -1;
-}
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_fd.c b/components/dfs/filesystems/uffs/src/uffs/uffs_fd.c
deleted file mode 100644
index bbc1bb880d..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_fd.c
+++ /dev/null
@@ -1,746 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fd.c
- * \brief POSIX like, hight level file operations
- * \author Ricky Zheng, created 8th Jun, 2005
- */
-
-#include <string.h>
-#include "uffs_config.h"
-#include "uffs/uffs_fs.h"
-#include "uffs/uffs_fd.h"
-#include "uffs/uffs_utils.h"
-#include "uffs/uffs_version.h"
-#include "uffs/uffs_mtb.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_find.h"
-
-#define PFX "fd  : "
-
-/**
- * \brief POSIX DIR
- */
-struct uffs_dirSt {
-    struct uffs_ObjectSt   *obj;		/* dir object */
-    struct uffs_FindInfoSt f;			/* find info */
-    struct uffs_ObjectInfoSt info;		/* object info */
-    struct uffs_dirent dirent;			/* dir entry */
-};
-
-
-#define FD_OFFSET		3	//!< just make file handler more like POSIX (0, 1, 2 for stdin/stdout/stderr)
-
-#define OBJ2FD(obj)	\
-	( \
-		( \
-			uffs_PoolGetIndex(uffs_GetObjectPool(), obj) | \
-			(_fd_signature << FD_SIGNATURE_SHIFT) \
-		) \
-		+ FD_OFFSET \
-	)
-
-/**
- * check #fd signature, convert #fd to #obj
- * if success, hold global file system lock, otherwise return with #ret
- */
-#define CHK_OBJ_LOCK(fd, obj, ret)	\
-	do { \
-		uffs_GlobalFsLockLock(); \
-		fd -= FD_OFFSET; \
-		if ( (fd >> FD_SIGNATURE_SHIFT) != _fd_signature ) { \
-			uffs_set_error(-UEBADF); \
-			uffs_Perror(UFFS_MSG_NOISY, "invalid fd: %d (sig: %d, expect: %d)", \
-					fd + FD_OFFSET, fd >> FD_SIGNATURE_SHIFT, _fd_signature); \
-			uffs_GlobalFsLockUnlock(); \
-			return (ret); \
-		} \
-		fd = fd & ((1 << FD_SIGNATURE_SHIFT) - 1); \
-		obj = (uffs_Object *)uffs_PoolGetBufByIndex(uffs_GetObjectPool(), fd); \
-		if ((obj) == NULL || \
-				uffs_PoolVerify(uffs_GetObjectPool(), (obj)) == U_FALSE || \
-				uffs_PoolCheckFreeList(uffs_GetObjectPool(), (obj)) == U_TRUE) { \
-			uffs_set_error(-UEBADF); \
-			uffs_Perror(UFFS_MSG_NOISY, "invalid obj"); \
-			uffs_GlobalFsLockUnlock(); \
-			return (ret); \
-		} \
-	} while(0)
-
-/**
- * check #dirp signature,
- * if success, hold global file system lock,
- * otherwise return with #ret
- */
-#define CHK_DIR_LOCK(dirp, ret)	\
-	do { \
-		uffs_GlobalFsLockLock(); \
-		if ((dirp) == NULL || \
-				uffs_PoolVerify(&_dir_pool, (dirp)) == U_FALSE || \
-				uffs_PoolCheckFreeList(&_dir_pool, (dirp)) == U_TRUE) { \
-			uffs_set_error(-UEBADF); \
-			uffs_Perror(UFFS_MSG_NOISY, "invalid dirp"); \
-			uffs_GlobalFsLockUnlock(); \
-			return (ret); \
-		} \
-	} while(0)
-
-/**
- * check #dirp signature,
- * if success, hold global file system lock,
- * otherwise return void
- */
-#define CHK_DIR_VOID_LOCK(dirp)	\
-	do { \
-		uffs_GlobalFsLockLock(); \
-		if ((dirp) == NULL || \
-				uffs_PoolVerify(&_dir_pool, (dirp)) == U_FALSE || \
-				uffs_PoolCheckFreeList(&_dir_pool, (dirp)) == U_TRUE) { \
-			uffs_set_error(-UEBADF); \
-			uffs_Perror(UFFS_MSG_NOISY, "invalid dirp"); \
-			uffs_GlobalFsLockUnlock(); \
-			return; \
-		} \
-	} while(0)
-
-
-static int _dir_pool_data[sizeof(uffs_DIR) * MAX_DIR_HANDLE / sizeof(int)];
-static uffs_Pool _dir_pool;
-static int _uffs_errno = 0;
-
-
-//
-// What is fd signature ? fd signature is for detecting file system get formated by other party.
-//   A thread open a file, read()...sleep()...write()...sleep()...
-//   B thread format UFFS partition, increase fd signature.
-//   A thread ...sleep()...read() --> Opps, fd signature changed ! read() return error(expected).
-//
-#define MAX_FD_SIGNATURE_ROUND  (100)
-static int _fd_signature = 0;
-
-//
-// only get called when formating UFFS partition
-//
-void uffs_FdSignatureIncrease(void)
-{
-	if (_fd_signature++ > MAX_FD_SIGNATURE_ROUND)
-		_fd_signature = 0;
-}
-
-/**
- * initialise uffs_DIR buffers, called by UFFS internal
- */
-URET uffs_DirEntryBufInit(void)
-{
-	return uffs_PoolInit(&_dir_pool, _dir_pool_data,
-							sizeof(_dir_pool_data),
-							sizeof(uffs_DIR), MAX_DIR_HANDLE);
-}
-
-/**
- * Release uffs_DIR buffers, called by UFFS internal
- */
-URET uffs_DirEntryBufRelease(void)
-{
-	return uffs_PoolRelease(&_dir_pool);
-}
-
-/**
- * Put all dir entry buf match dev
- */
-int uffs_DirEntryBufPutAll(uffs_Device *dev)
-{
-	int count = 0;
-	uffs_DIR *dirp = NULL;
-
-	do {
-		dirp = (uffs_DIR *) uffs_PoolFindNextAllocated(&_dir_pool, dirp);
-		if (dirp && dirp->obj && dirp->obj->dev &&
-				dirp->obj->dev->dev_num == dev->dev_num) {
-			uffs_PoolPut(&_dir_pool, dirp);
-			count++;
-		}
-	} while (dirp);
-
-	return count;
-}
-
-
-uffs_Pool * uffs_DirEntryBufGetPool(void)
-{
-	return &_dir_pool;
-}
-
-static uffs_DIR * GetDirEntry(void)
-{
-	uffs_DIR *dirp = (uffs_DIR *) uffs_PoolGet(&_dir_pool);
-
-	if (dirp)
-		memset(dirp, 0, sizeof(uffs_DIR));
-
-	return dirp;
-}
-
-static void PutDirEntry(uffs_DIR *p)
-{
-	uffs_PoolPut(&_dir_pool, p);
-}
-
-
-/** get global errno
- */
-int uffs_get_error(void)
-{
-	return _uffs_errno;
-}
-
-/** set global errno
- */
-int uffs_set_error(int err)
-{
-	return (_uffs_errno = err);
-}
-
-/* POSIX compliant file system APIs */
-
-int uffs_open(const char *name, int oflag, ...)
-{
-	uffs_Object *obj;
-	int ret = 0;
-
-	uffs_GlobalFsLockLock();
-
-	obj = uffs_GetObject();
-	if (obj == NULL) {
-		uffs_set_error(-UEMFILE);
-		ret = -1;
-	}
-	else {
-		if (uffs_OpenObject(obj, name, oflag) == U_FAIL) {
-			uffs_set_error(-uffs_GetObjectErr(obj));
-			uffs_PutObject(obj);
-			ret = -1;
-		}
-		else {
-			ret = OBJ2FD(obj);
-		}
-	}
-
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_close(int fd)
-{
-	int ret = 0;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-
-	uffs_ClearObjectErr(obj);
-	if (uffs_CloseObject(obj) == U_FAIL) {
-		uffs_set_error(-uffs_GetObjectErr(obj));
-		ret = -1;
-	}
-	else {
-		uffs_PutObject(obj);
-		ret = 0;
-	}
-
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_read(int fd, void *data, int len)
-{
-	int ret;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-	uffs_ClearObjectErr(obj);
-	ret = uffs_ReadObject(obj, data, len);
-	uffs_set_error(-uffs_GetObjectErr(obj));
-
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_write(int fd, const void *data, int len)
-{
-	int ret;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-	uffs_ClearObjectErr(obj);
-	ret = uffs_WriteObject(obj, data, len);
-	uffs_set_error(-uffs_GetObjectErr(obj));
-
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-long uffs_seek(int fd, long offset, int origin)
-{
-	int ret;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-	uffs_ClearObjectErr(obj);
-	ret = uffs_SeekObject(obj, offset, origin);
-	uffs_set_error(-uffs_GetObjectErr(obj));
-	
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-long uffs_tell(int fd)
-{
-	long ret;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-	uffs_ClearObjectErr(obj);
-	ret = (long) uffs_GetCurOffset(obj);
-	uffs_set_error(-uffs_GetObjectErr(obj));
-	
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_eof(int fd)
-{
-	int ret;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-	uffs_ClearObjectErr(obj);
-	ret = uffs_EndOfFile(obj);
-	uffs_set_error(-uffs_GetObjectErr(obj));
-	
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_flush(int fd)
-{
-	int ret;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-	uffs_ClearObjectErr(obj);
-	ret = (uffs_FlushObject(obj) == U_SUCC) ? 0 : -1;
-	uffs_set_error(-uffs_GetObjectErr(obj));
-	
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_rename(const char *old_name, const char *new_name)
-{
-	int err = 0;
-	int ret = 0;
-
-	uffs_GlobalFsLockLock();
-	ret = (uffs_RenameObject(old_name, new_name, &err) == U_SUCC) ? 0 : -1;
-	uffs_set_error(-err);
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_remove(const char *name)
-{
-	int err = 0;
-	int ret = 0;
-	struct uffs_stat st;
-
-	if (uffs_stat(name, &st) < 0) {
-		err = UENOENT;
-		ret = -1;
-	}
-	else if (st.st_mode & US_IFDIR) {
-		err = UEISDIR;
-		ret = -1;
-	}
-	else {
-		uffs_GlobalFsLockLock();
-		if (uffs_DeleteObject(name, &err) == U_SUCC) {
-			ret = 0;
-		}
-		else {
-			ret = -1;
-		}
-		uffs_GlobalFsLockUnlock();
-	}
-
-	uffs_set_error(-err);
-	return ret;
-}
-
-int uffs_ftruncate(int fd, long remain)
-{
-	int ret;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-	uffs_ClearObjectErr(obj);
-	ret = (uffs_TruncateObject(obj, remain) == U_SUCC) ? 0 : -1;
-	uffs_set_error(-uffs_GetObjectErr(obj));
-	uffs_GlobalFsLockUnlock();
-	
-	return ret;
-}
-
-static int do_stat(uffs_Object *obj, struct uffs_stat *buf)
-{
-	uffs_ObjectInfo info;
-	int ret = 0;
-	int err = 0;
-
-	if (uffs_GetObjectInfo(obj, &info, &err) == U_FAIL) {
-		ret = -1;
-	}
-	else {
-		buf->st_dev = obj->dev->dev_num;
-		buf->st_ino = info.serial;
-		buf->st_nlink = 0;
-		buf->st_uid = 0;
-		buf->st_gid = 0;
-		buf->st_rdev = 0;
-		buf->st_size = info.len;
-		buf->st_blksize = obj->dev->com.pg_data_size;
-		buf->st_blocks = 0;
-		buf->st_atime = info.info.last_modify;
-		buf->st_mtime = info.info.last_modify;
-		buf->st_ctime = info.info.create_time;
-		buf->st_mode = (info.info.attr & FILE_ATTR_DIR ? US_IFDIR : US_IFREG);
-		if (info.info.attr & FILE_ATTR_WRITE)
-			buf->st_mode |= US_IRWXU;
-	}
-
-	uffs_set_error(-err);
-	return ret;
-}
-
-int uffs_stat(const char *name, struct uffs_stat *buf)
-{
-	uffs_Object *obj;
-	int ret = 0;
-	int err = 0;
-	URET result;
-
-	uffs_GlobalFsLockLock();
-
-	obj = uffs_GetObject();
-	if (obj) {
-		if (*name && name[strlen(name) - 1] == '/') {
-			result = uffs_OpenObject(obj, name, UO_RDONLY | UO_DIR);
-		}
-		else {
-			if ((result = uffs_OpenObject(obj, name, UO_RDONLY)) != U_SUCC)	// try file
-				result = uffs_OpenObject(obj, name, UO_RDONLY | UO_DIR);	// then try dir
-		}
-		if (result == U_SUCC) {
-			ret = do_stat(obj, buf);
-			uffs_CloseObject(obj);
-		}
-		else {
-			err = uffs_GetObjectErr(obj);
-			ret = -1;
-		}
-		uffs_PutObject(obj);
-	}
-	else {
-		err = UENOMEM;
-		ret = -1;
-	}
-
-	uffs_set_error(-err);
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_lstat(const char *name, struct uffs_stat *buf)
-{
-	return uffs_stat(name, buf);
-}
-
-int uffs_fstat(int fd, struct uffs_stat *buf)
-{
-	int ret;
-	uffs_Object *obj;
-
-	CHK_OBJ_LOCK(fd, obj, -1);
-
-	ret = do_stat(obj, buf);
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_closedir(uffs_DIR *dirp)
-{
-	CHK_DIR_LOCK(dirp, -1);
-
-	uffs_FindObjectClose(&dirp->f);
-	if (dirp->obj) {
-		uffs_CloseObject(dirp->obj);
-		uffs_PutObject(dirp->obj);
-	}
-	PutDirEntry(dirp);
-	uffs_GlobalFsLockUnlock();
-
-	return 0;
-}
-
-uffs_DIR * uffs_opendir(const char *path)
-{
-	int err = 0;
-	uffs_DIR *ret = NULL;
-	uffs_DIR *dirp;
-
-	uffs_GlobalFsLockLock();
-
-	dirp = GetDirEntry();
-
-	if (dirp) {
-		dirp->obj = uffs_GetObject();
-		if (dirp->obj) {
-			if (uffs_OpenObject(dirp->obj, path, UO_RDONLY | UO_DIR) == U_SUCC) {
-				if (uffs_FindObjectOpen(&dirp->f, dirp->obj) == U_SUCC) {
-					ret = dirp;
-					goto ext;
-				}
-				else {
-					uffs_CloseObject(dirp->obj);
-				}
-			}
-			else {
-				err = uffs_GetObjectErr(dirp->obj);
-			}
-			uffs_PutObject(dirp->obj);
-			dirp->obj = NULL;
-		}
-		else {
-			err = UEMFILE;
-		}
-		PutDirEntry(dirp);
-	}
-	else {
-		err = UEMFILE;
-	}
-ext:
-	uffs_set_error(-err);
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-struct uffs_dirent * uffs_readdir(uffs_DIR *dirp)
-{
-	struct uffs_dirent *ent = NULL;
-
-	CHK_DIR_LOCK(dirp, NULL);
-
-	if (uffs_FindObjectNext(&dirp->info, &dirp->f) == U_SUCC) {
-		ent = &dirp->dirent;
-		ent->d_ino = dirp->info.serial;
-		ent->d_namelen = dirp->info.info.name_len < (sizeof(ent->d_name) - 1) ? dirp->info.info.name_len : (sizeof(ent->d_name) - 1);
-		memcpy(ent->d_name, dirp->info.info.name, ent->d_namelen);
-		ent->d_name[ent->d_namelen] = '\0';
-		ent->d_off = dirp->f.pos;
-		ent->d_reclen = sizeof(struct uffs_dirent);
-		ent->d_type = dirp->info.info.attr;
-	}
-	uffs_GlobalFsLockUnlock();
-
-	return ent;
-}
-
-void uffs_rewinddir(uffs_DIR *dirp)
-{
-	CHK_DIR_VOID_LOCK(dirp);
-
-	uffs_FindObjectRewind(&dirp->f);
-
-	uffs_GlobalFsLockUnlock();
-}
-
-
-int uffs_mkdir(const char *name, ...)
-{
-	uffs_Object *obj;
-	int ret = 0;
-	int err = 0;
-
-	uffs_GlobalFsLockLock();
-
-	obj = uffs_GetObject();
-	if (obj) {
-		if (uffs_CreateObject(obj, name, UO_CREATE|UO_DIR) != U_SUCC) {
-			err = obj->err;
-			ret = -1;
-		}
-		else {
-			uffs_CloseObject(obj);
-			ret = 0;
-		}
-		uffs_PutObject(obj);
-	}
-	else {
-		err = UEMFILE;
-		ret = -1;
-	}
-
-	uffs_set_error(-err);
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-int uffs_rmdir(const char *name)
-{
-	int err = 0;
-	int ret = 0;
-	struct uffs_stat st;
-
-	if (uffs_stat(name, &st) < 0) {
-		err = UENOENT;
-		ret = -1;
-	}
-	else if ((st.st_mode & US_IFDIR) == 0) {
-		err = UENOTDIR;
-		ret = -1;
-	}
-	else {
-		uffs_GlobalFsLockLock();
-		if (uffs_DeleteObject(name, &err) == U_SUCC) {
-			ret = 0;
-		}
-		else {
-			ret = -1;
-		}
-		uffs_GlobalFsLockUnlock();
-	}
-	uffs_set_error(-err);
-	return ret;
-}
-
-int uffs_version(void)
-{
-	return uffs_GetVersion();
-}
-
-int uffs_format(const char *mount_point)
-{
-	uffs_Device *dev = NULL;
-	URET ret = U_FAIL;
-
-	dev = uffs_GetDeviceFromMountPoint(mount_point);
-	if (dev) {
-		uffs_GlobalFsLockLock();
-		ret = uffs_FormatDevice(dev, U_TRUE);
-		uffs_GlobalFsLockUnlock();
-	}
-
-	return ret == U_SUCC ? 0 : -1;
-}
-
-long uffs_space_total(const char *mount_point)
-{
-	uffs_Device *dev = NULL;
-	long ret = -1L;
-
-	dev = uffs_GetDeviceFromMountPoint(mount_point);
-	if (dev) {
-		uffs_GlobalFsLockLock();
-		ret = (long) uffs_GetDeviceTotal(dev);
-		uffs_GlobalFsLockUnlock();
-	}
-
-	return ret;
-}
-
-long uffs_space_used(const char *mount_point)
-{
-	uffs_Device *dev = NULL;
-	long ret = -1L;
-
-	dev = uffs_GetDeviceFromMountPoint(mount_point);
-	if (dev) {
-		uffs_GlobalFsLockLock();
-		ret = (long) uffs_GetDeviceUsed(dev);
-		uffs_GlobalFsLockUnlock();
-	}
-
-	return ret;
-}
-
-long uffs_space_free(const char *mount_point)
-{
-	uffs_Device *dev = NULL;
-	long ret = -1L;
-
-	dev = uffs_GetDeviceFromMountPoint(mount_point);
-	if (dev) {
-		uffs_GlobalFsLockLock();
-		ret = (long) uffs_GetDeviceFree(dev);
-		uffs_GlobalFsLockUnlock();
-	}
-
-	return ret;
-}
-
-
-void uffs_flush_all(const char *mount_point)
-{
-	uffs_Device *dev = NULL;
-
-	dev = uffs_GetDeviceFromMountPoint(mount_point);
-	if (dev) {
-		uffs_GlobalFsLockLock();
-		uffs_BufFlushAll(dev);
-		uffs_PutDevice(dev);
-		uffs_GlobalFsLockUnlock();
-	}
-}
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_find.c b/components/dfs/filesystems/uffs/src/uffs/uffs_find.c
deleted file mode 100644
index e79da042f7..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_find.c
+++ /dev/null
@@ -1,378 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_find.c
- * \brief find objects under dir
- * \author Ricky Zheng, created 13th July, 2009
- */
-
-#include <string.h> 
-#include <stdio.h>
-#include "uffs_config.h"
-#include "uffs/uffs_find.h"
-
-#define TPOOL(dev) &((dev)->mem.tree_pool)
-
-static void ResetFindInfo(uffs_FindInfo *f)
-{
-	f->hash = 0;
-	f->work = NULL;
-	f->step = 0;
-	f->pos = 0;
-}
-
-static URET _LoadObjectInfo(uffs_Device *dev,
-							TreeNode *node,
-							uffs_ObjectInfo *info,
-							int type,
-							int *err)
-{
-	uffs_Buf *buf;
-
-	buf = uffs_BufGetEx(dev, (u8)type, node, 0, 0);
-
-	if (buf == NULL) {
-		if (err)
-			*err = UENOMEM;
-		return U_FAIL;
-	}
-
-	memcpy(&(info->info), buf->data, sizeof(uffs_FileInfo));
-
-	if (type == UFFS_TYPE_DIR) {
-		info->len = 0;
-		info->serial = node->u.dir.serial;
-	}
-	else {
-		info->len = node->u.file.len;
-		info->serial = node->u.file.serial;
-	}
-
-	uffs_BufPut(dev, buf);
-
-	return U_SUCC;
-}
-
-/**
- * get object information
- *
- * \param[in] obj the object to be revealed
- * \param[out] info object information will be loaded to info
- * \param[out] err return error code if failed
- *
- * \return U_SUCC or U_FAIL
- *
- * \node the obj should be openned before call this function.
- */
-URET uffs_GetObjectInfo(uffs_Object *obj, uffs_ObjectInfo *info, int *err)
-{
-	uffs_Device *dev = obj->dev;
-	URET ret = U_FAIL;
-
-	uffs_DeviceLock(dev);
-
-	if (obj && dev && info) {
-		if (obj->parent == PARENT_OF_ROOT) {
-			// this is ROOT. UFFS does not physically has root, just fake it ...
-			memset(info, 0, sizeof(uffs_ObjectInfo));
-			info->serial = obj->serial;
-			info->info.attr |= (FILE_ATTR_DIR | FILE_ATTR_WRITE);
-			if (err)
-				*err = UENOERR;
-			ret = U_SUCC;
-		}
-		else
-			ret = _LoadObjectInfo(dev, obj->node, info, obj->type, err);
-	}
-	else {
-		if (err)
-			*err = UEINVAL;
-	}
-
-	uffs_DeviceUnLock(dev);
-
-	return ret;
-}
-
-
-/**
- * Open a FindInfo for finding objects under dir
- *
- * \param[out] f uffs_FindInfo structure
- * \param[in] dir an openned dir object (openned by uffs_OpenObject() ). 
- *
- * \return U_SUCC if success, U_FAIL if invalid param or the dir
- *			is not been openned.
- */
-URET uffs_FindObjectOpen(uffs_FindInfo *f, uffs_Object *dir)
-{
-	if (f == NULL || dir == NULL ||
-			dir->dev == NULL || dir->open_succ != U_TRUE)
-		return U_FAIL;
-
-	f->dev = dir->dev;
-	f->serial = dir->serial;
-	ResetFindInfo(f);
-
-	return U_SUCC;
-}
-
-/**
- * Open a FindInfo for finding objects under dir
- *
- * \param[out] f uffs_FindInfo structure
- * \param[in] dev uffs device
- * \param[in] dir serial number of the dir to be searched
- *
- * \return U_SUCC if success, U_FAIL if invalid param or the dir
- *			serial number is not valid.
- */
-URET uffs_FindObjectOpenEx(uffs_FindInfo *f, uffs_Device *dev, int dir)
-{
-	TreeNode *node;
-
-	if (f == NULL || dev == NULL)
-		return U_FAIL;
-
-	node = uffs_TreeFindDirNode(dev, dir);
-
-	if (node == NULL)
-		return U_FAIL;
-
-	f->serial = dir;
-	f->dev = dev;
-	ResetFindInfo(f);
-
-	return U_SUCC;
-}
-
-
-static URET do_FindObject(uffs_FindInfo *f, uffs_ObjectInfo *info, u16 x)
-{
-	URET ret = U_SUCC;
-	TreeNode *node;
-	uffs_Device *dev = f->dev;
-
-	if (f->step == 0) { //!< working on dirs
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.dir.parent == f->serial) {
-				f->work = node;
-				f->pos++;
-				if (info)
-					ret = _LoadObjectInfo(dev, node, info, UFFS_TYPE_DIR, NULL);
-				goto ext;
-			}
-			x = node->hash_next;
-		}
-
-		f->hash++; //come to next hash entry
-
-		for (; f->hash < DIR_NODE_ENTRY_LEN; f->hash++) {
-			x = dev->tree.dir_entry[f->hash];
-			while (x != EMPTY_NODE) {
-				node = FROM_IDX(x, TPOOL(dev));
-				if (node->u.dir.parent == f->serial) {
-					f->work = node;
-					f->pos++;
-					if (info)
-						ret = _LoadObjectInfo(dev, node, info, UFFS_TYPE_DIR, NULL);
-					goto ext;
-				}
-				x = node->hash_next;
-			}
-		}
-
-		//no subdirs, then lookup files ..
-		f->step++;
-		f->hash = 0;
-		x = dev->tree.file_entry[f->hash];
-	}
-
-	if (f->step == 1) {
-
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.file.parent == f->serial) {
-				f->work = node;
-				f->pos++;
-				if (info)
-					ret = _LoadObjectInfo(dev, node, info, UFFS_TYPE_FILE, NULL);
-				goto ext;
-			}
-			x = node->hash_next;
-		}
-
-		f->hash++; //come to next hash entry
-
-		for (; f->hash < FILE_NODE_ENTRY_LEN; f->hash++) {
-			x = dev->tree.file_entry[f->hash];
-			while (x != EMPTY_NODE) {
-				node = FROM_IDX(x, TPOOL(dev));
-				if (node->u.file.parent == f->serial) {
-					f->work = node;
-					f->pos++;
-					if (info) 
-						ret = _LoadObjectInfo(dev, node, info, UFFS_TYPE_FILE, NULL);
-					goto ext;
-				}
-				x = node->hash_next;
-			}
-		}
-
-		//no any files, stopped.
-		f->step++;
-	}
-
-	ret = U_FAIL;
-ext:
-
-	return ret;
-
-}
-
-
-/**
- * Find the first object
- *
- * \param[out] info the object information will be filled to info.
- *				if info is NULL, then skip this object.
- * \param[in] f uffs_FindInfo structure, openned by uffs_FindObjectOpen().
- *
- * \return U_SUCC if an object is found, U_FAIL if no object is found.
- */
-URET uffs_FindObjectFirst(uffs_ObjectInfo * info, uffs_FindInfo * f)
-{
-	uffs_Device *dev = f->dev;
-	URET ret = U_SUCC;
-
-	uffs_DeviceLock(dev);
-	ResetFindInfo(f);
-	ret = do_FindObject(f, info, dev->tree.dir_entry[0]);
-	uffs_DeviceUnLock(dev);
-
-	return ret;
-}
-
-/**
- * Find the next object.
- *
- * \param[out] info the object information will be filled to info.
- *				if info is NULL, then skip this object.
- * \param[in] f uffs_FindInfo structure, openned by uffs_FindObjectOpen().
- *
- * \return U_SUCC if an object is found, U_FAIL if no object is found.
- *
- * \note uffs_FindObjectFirst() should be called before uffs_FindObjectNext().
- */
-URET uffs_FindObjectNext(uffs_ObjectInfo *info, uffs_FindInfo * f)
-{
-	uffs_Device *dev = f->dev;
-	URET ret = U_SUCC;
-
-	if (dev == NULL || f->step > 1) 
-		return U_FAIL;
-
-	if (f->work == NULL)
-		return uffs_FindObjectFirst(info, f);
-
-	uffs_DeviceLock(dev);
-	ret = do_FindObject(f, info, f->work->hash_next);
-	uffs_DeviceUnLock(dev);
-
-	return ret;
-}
-
-/**
- * Rewind a find object process.
- *
- * \note After rewind, you can call uffs_FindObjectFirst() to
- *			start find object process.
- */
-URET uffs_FindObjectRewind(uffs_FindInfo *f)
-{
-	if (f == NULL)
-		return U_FAIL;
-
-	ResetFindInfo(f);
-
-	return U_SUCC;
-}
-
-/**
- * Close Find Object.
- *
- * \param[in] f uffs_FindInfo structure, openned by uffs_FindObjectOpen().
- *
- * \return U_SUCC if success, U_FAIL if invalid param.
- */
-URET uffs_FindObjectClose(uffs_FindInfo * f)
-{
-	if (f == NULL)
-		return U_FAIL;
-
-	f->dev = NULL;
-	ResetFindInfo(f);
-
-	return U_SUCC;
-}
-
-/**
- * Count objects
- *
- * \param[in] f uffs_FindInfo structure, openned by uffs_FindObjectOpen().
- *
- * \return object counts
- * \note after call this function, you need to call
- *		 uffs_FindObjectRewind() to start finding process.
- */
-int uffs_FindObjectCount(uffs_FindInfo *f)
-{
-	if (uffs_FindObjectFirst(NULL, f) == U_SUCC) {
-		while (uffs_FindObjectNext(NULL, f) == U_SUCC) { };
-	}
-	return f->pos;
-}
-
-/**
- * Return current finding position
- *
- * \param[in] f uffs_FindInfo structure, openned by uffs_FindObjectOpen().
- *
- * \return current finding position
- */
-int uffs_FindObjectTell(uffs_FindInfo *f)
-{
-	return f->pos;
-}
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_flash.c b/components/dfs/filesystems/uffs/src/uffs/uffs_flash.c
deleted file mode 100644
index be4f4246dc..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_flash.c
+++ /dev/null
@@ -1,1034 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_flash.c
- * \brief UFFS flash interface
- * \author Ricky Zheng, created 17th July, 2009
- */
-#include "uffs_config.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_ecc.h"
-#include "uffs/uffs_flash.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_badblock.h"
-#include "uffs/uffs_crc.h"
-#include <string.h>
-
-#define PFX "flsh: "
-
-#define SPOOL(dev) &((dev)->mem.spare_pool)
-#define HEADER(buf) ((struct uffs_MiniHeaderSt *)(buf)->header)
-
-#define ECC_SIZE(dev)	((dev)->attr->ecc_size)
-#define NOMINAL_ECC_SIZE(dev) (3 * ((((dev)->attr->page_data_size - 1) / 256) + 1))
-
-#define TAG_STORE_SIZE	(sizeof(struct uffs_TagStoreSt))
-
-#define SEAL_BYTE(dev, spare)  spare[(dev)->mem.spare_data_size - 1]	// seal byte is the last byte of spare data
-
-#if defined(CONFIG_UFFS_AUTO_LAYOUT_USE_MTD_SCHEME)
-/** Linux MTD spare layout for 512 and 2K page size */
-static const u8 MTD512_LAYOUT_ECC[] =	{0, 4, 6, 2, 0xFF, 0};
-static const u8 MTD512_LAYOUT_DATA[] = {8, 8, 0xFF, 0};
-static const u8 MTD2K_LAYOUT_ECC[] = {40, 24, 0xFF, 0};
-static const u8 MTD2K_LAYOUT_DATA[] = {2, 38, 0xFF, 0};
-#endif
-
-static void TagMakeEcc(struct uffs_TagStoreSt *ts)
-{
-	ts->tag_ecc = 0xFFF;
-	ts->tag_ecc = uffs_EccMake8(ts, sizeof(struct uffs_TagStoreSt));
-}
-
-static int TagEccCorrect(struct uffs_TagStoreSt *ts)
-{
-	u16 ecc_store, ecc_read;
-	int ret;
-
-	ecc_store = ts->tag_ecc;
-	ts->tag_ecc = 0xFFF;
-	ecc_read = uffs_EccMake8(ts, sizeof(struct uffs_TagStoreSt));
-	ret = uffs_EccCorrect8(ts, ecc_read, ecc_store, sizeof(struct uffs_TagStoreSt));
-	ts->tag_ecc = ecc_store;	// restore tag ecc
-
-	return ret;
-
-}
-
-/** setup UFFS spare data & ecc layout */
-static void InitSpareLayout(uffs_Device *dev)
-{
-	u8 s; // status byte offset
-	u8 *p;
-
-	s = dev->attr->block_status_offs;
-
-	if (s < TAG_STORE_SIZE) {	/* status byte is within 0 ~ TAG_STORE_SIZE-1 */
-
-		/* spare data layout */
-		p = dev->attr->_uffs_data_layout;
-		if (s > 0) {
-			*p++ = 0;
-			*p++ = s;
-		}
-		*p++ = s + 1;
-		*p++ = TAG_STORE_SIZE - s;
-		*p++ = 0xFF;
-		*p++ = 0;
-
-		/* spare ecc layout */
-		p = dev->attr->_uffs_ecc_layout;
-		if (dev->attr->ecc_opt != UFFS_ECC_NONE) {
-			*p++ = TAG_STORE_SIZE + 1;
-			*p++ = ECC_SIZE(dev);
-		}
-		*p++ = 0xFF;
-		*p++ = 0;
-	}
-	else {	/* status byte > TAG_STORE_SIZE-1 */
-
-		/* spare data layout */
-		p = dev->attr->_uffs_data_layout;
-		*p++ = 0;
-		*p++ = TAG_STORE_SIZE;
-		*p++ = 0xFF;
-		*p++ = 0;
-
-		/* spare ecc layout */
-		p = dev->attr->_uffs_ecc_layout;
-		if (dev->attr->ecc_opt != UFFS_ECC_NONE) {
-			if (s < TAG_STORE_SIZE + ECC_SIZE(dev)) {
-				if (s > TAG_STORE_SIZE) {
-					*p++ = TAG_STORE_SIZE;
-					*p++ = s - TAG_STORE_SIZE;
-				}
-				*p++ = s + 1;
-				*p++ = TAG_STORE_SIZE + ECC_SIZE(dev) - s;
-			}
-			else {
-				*p++ = TAG_STORE_SIZE;
-				*p++ = ECC_SIZE(dev);
-			}
-		}
-		*p++ = 0xFF;
-		*p++ = 0;
-	}
-
-	dev->attr->data_layout = dev->attr->_uffs_data_layout;
-	dev->attr->ecc_layout = dev->attr->_uffs_ecc_layout;
-}
-
-static int CalculateSpareDataSize(uffs_Device *dev)
-{
-	const u8 *p;
-	int ecc_last = 0, tag_last = 0;
-	int ecc_size, tag_size;
-	int n;
-
-	ecc_size = (dev->attr->ecc_opt == UFFS_ECC_NONE ? 0 : ECC_SIZE(dev));
-	
-	p = dev->attr->ecc_layout;
-	if (p) {
-		while (*p != 0xFF && ecc_size > 0) {
-			n = (p[1] > ecc_size ? ecc_size : p[1]);
-			ecc_last = p[0] + n;
-			ecc_size -= n;
-			p += 2;
-		}
-	}
-
-	tag_size = TAG_STORE_SIZE;
-	p = dev->attr->data_layout;
-	if (p) {
-		while (*p != 0xFF && tag_size > 0) {
-			n = (p[1] > tag_size ? tag_size : p[1]);
-			tag_last = p[0] + n;
-			tag_size -= n;
-			p += 2;
-		}
-	}
-
-	n = (ecc_last > tag_last ? ecc_last : tag_last);
-	n = (n > dev->attr->block_status_offs + 1 ?
-			n : dev->attr->block_status_offs + 1);
-
-	return n + 1;		// plus one seal byte.
-}
-
-
-/**
- * Initialize UFFS flash interface
- */
-URET uffs_FlashInterfaceInit(uffs_Device *dev)
-{
-	URET ret = U_FAIL;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	uffs_Pool *pool = SPOOL(dev);
-
-	if (dev->mem.spare_pool_size == 0) {
-		if (dev->mem.malloc) {
-			dev->mem.spare_pool_buf = dev->mem.malloc(dev, UFFS_SPARE_BUFFER_SIZE);
-			if (dev->mem.spare_pool_buf)
-				dev->mem.spare_pool_size = UFFS_SPARE_BUFFER_SIZE;
-		}
-	}
-
-	if (UFFS_SPARE_BUFFER_SIZE > dev->mem.spare_pool_size) {
-		uffs_Perror(UFFS_MSG_DEAD,
-					"Spare buffer require %d but only %d available.",
-					UFFS_SPARE_BUFFER_SIZE, dev->mem.spare_pool_size);
-		memset(pool, 0, sizeof(uffs_Pool));
-		goto ext;
-	}
-
-	uffs_Perror(UFFS_MSG_NOISY,
-					"alloc spare buffers %d bytes.",
-					UFFS_SPARE_BUFFER_SIZE);
-	uffs_PoolInit(pool, dev->mem.spare_pool_buf,
-					dev->mem.spare_pool_size,
-					UFFS_MAX_SPARE_SIZE, MAX_SPARE_BUFFERS);
-
-	// init flash driver
-	if (dev->ops->InitFlash) {
-		if (dev->ops->InitFlash(dev) < 0)
-			goto ext;
-	}
-
-	if (dev->ops->WritePage == NULL && dev->ops->WritePageWithLayout == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Flash driver must provide 'WritePage' or 'WritePageWithLayout' function!");
-		goto ext;
-	}
-
-	if (dev->ops->ReadPage == NULL && dev->ops->ReadPageWithLayout == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Flash driver must provide 'ReadPage' or 'ReadPageWithLayout' function!");
-		goto ext;
-	}
-
-	if (dev->attr->layout_opt == UFFS_LAYOUT_UFFS) {
-		/* sanity check */
-
-		if (dev->attr->ecc_size == 0 && dev->attr->ecc_opt != UFFS_ECC_NONE) {
-			dev->attr->ecc_size = NOMINAL_ECC_SIZE(dev);
-		}
-
-		uffs_Perror(UFFS_MSG_NORMAL, "ECC size %d", dev->attr->ecc_size);
-
-		if ((dev->attr->data_layout && !dev->attr->ecc_layout) ||
-			(!dev->attr->data_layout && dev->attr->ecc_layout)) {
-			uffs_Perror(UFFS_MSG_SERIOUS,
-						"Please setup data_layout and ecc_layout, "
-						"or leave them all NULL !");
-			goto ext;
-		}
-
-		if (!attr->data_layout && !attr->ecc_layout) {
-#if defined(CONFIG_UFFS_AUTO_LAYOUT_USE_MTD_SCHEME)
-			switch(attr->page_data_size) {
-			case 512:
-				attr->ecc_layout = MTD512_LAYOUT_ECC;
-				attr->data_layout = MTD512_LAYOUT_DATA;
-				break;
-			case 2048:
-				attr->ecc_layout = MTD2K_LAYOUT_ECC;
-				attr->data_layout = MTD2K_LAYOUT_DATA;
-				break;
-			default:
-				InitSpareLayout(dev);
-				break;
-			}
-#else
-			InitSpareLayout(dev);
-#endif
-		}
-	}
-	else if (dev->attr->layout_opt == UFFS_LAYOUT_FLASH) {
-		if (dev->ops->WritePageWithLayout == NULL || dev->ops->ReadPageWithLayout == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "When using UFFS_LAYOUT_FLASH option, "
-				"flash driver must provide 'WritePageWithLayout' and 'ReadPageWithLayout' function!");
-			goto ext;
-		}
-	}
-	else {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Invalid layout_opt: %d", dev->attr->layout_opt);
-		goto ext;
-	}
-
-	if (dev->ops->EraseBlock == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Flash driver MUST implement 'EraseBlock()' function !");
-		goto ext;
-	}
-
-	dev->mem.spare_data_size = CalculateSpareDataSize(dev);
-	uffs_Perror(UFFS_MSG_NORMAL, "UFFS consume spare data size %d", dev->mem.spare_data_size);
-
-	if (dev->mem.spare_data_size > dev->attr->spare_size) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "NAND spare(%dB) can't hold UFFS spare data(%dB) !",
-						dev->attr->spare_size, dev->mem.spare_data_size);
-		goto ext;
-	}
-
-	ret = U_SUCC;
-ext:
-	return ret;
-}
-
-/**
- * Release UFFS flash interface
- */
-URET uffs_FlashInterfaceRelease(uffs_Device *dev)
-{
-	uffs_Pool *pool;
-
-	pool = SPOOL(dev);
-	if (pool->mem && dev->mem.free) {
-		dev->mem.free(dev, pool->mem);
-		pool->mem = NULL;
-		dev->mem.spare_pool_size = 0;
-	}
-	uffs_PoolRelease(pool);
-	memset(pool, 0, sizeof(uffs_Pool));
-
-	// release flash driver
-	if (dev->ops->ReleaseFlash) {
-		if (dev->ops->ReleaseFlash(dev) < 0)
-			return U_FAIL;
-	}
-
-	return U_SUCC;
-}
-
-/**
- * unload spare to tag and ecc.
- */
-void uffs_FlashUnloadSpare(uffs_Device *dev,
-						const u8 *spare, struct uffs_TagStoreSt *ts, u8 *ecc)
-{
-	u8 *p_tag = (u8 *)ts;
-	int tag_size = TAG_STORE_SIZE;
-	int ecc_size = dev->attr->ecc_size;
-	int n;
-	const u8 *p;
-
-	// unload ecc
-	p = dev->attr->ecc_layout;
-	if (p && ecc) {
-		while (*p != 0xFF && ecc_size > 0) {
-			n = (p[1] > ecc_size ? ecc_size : p[1]);
-			memcpy(ecc, spare + p[0], n);
-			ecc_size -= n;
-			ecc += n;
-			p += 2;
-		}
-	}
-
-	// unload tag
-	if (ts) {
-		p = dev->attr->data_layout;
-		while (*p != 0xFF && tag_size > 0) {
-			n = (p[1] > tag_size ? tag_size : p[1]);
-			memcpy(p_tag, spare + p[0], n);
-			tag_size -= n;
-			p_tag += n;
-			p += 2;
-		}
-	}
-}
-
-/**
- * Read tag from page spare
- *
- * \param[in] dev uffs device
- * \param[in] block flash block num
- * \param[in] page flash page num
- * \param[out] tag tag to be filled
- *
- * \return	#UFFS_FLASH_NO_ERR: success and/or has no flip bits.
- *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
- *			#UFFS_FLASH_ECC_FAIL: spare data has flip bits and ecc correct failed.
- *			#UFFS_FLASH_ECC_OK: spare data has flip bits and corrected by ecc.
-*/
-int uffs_FlashReadPageTag(uffs_Device *dev,
-							int block, int page, uffs_Tags *tag)
-{
-	uffs_FlashOps *ops = dev->ops;
-	u8 * spare_buf;
-	int ret = UFFS_FLASH_UNKNOWN_ERR;
-	int tmp_ret;
-	UBOOL is_bad = U_FALSE;
-
-	spare_buf = (u8 *) uffs_PoolGet(SPOOL(dev));
-	if (spare_buf == NULL)
-		goto ext;
-
-	if (ops->ReadPageWithLayout) {
-		ret = ops->ReadPageWithLayout(dev, block, page, NULL, 0, NULL, tag ? &tag->s : NULL, NULL);
-		if (tag)
-			tag->seal_byte = (ret == UFFS_FLASH_NOT_SEALED ? 0xFF : 0);
-	}
-	else {
-		ret = ops->ReadPage(dev, block, page, NULL, 0, NULL,
-									spare_buf, dev->mem.spare_data_size);
-
-		if (tag) {
-			tag->seal_byte = SEAL_BYTE(dev, spare_buf);
-
-			if (!UFFS_FLASH_HAVE_ERR(ret))
-				uffs_FlashUnloadSpare(dev, spare_buf, &tag->s, NULL);
-		}
-	}
-
-	if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-		is_bad = U_TRUE;
-
-	if (UFFS_FLASH_HAVE_ERR(ret))
-		goto ext;
-
-	if (tag) {
-		if (!TAG_IS_SEALED(tag))	// not sealed ? don't try tag ECC correction
-			goto ext;
-
-		if (!TAG_IS_VALID(tag)) {
-			if (dev->attr->ecc_opt != UFFS_ECC_NONE) {
-				/*
-				 * There could be a special case if:
-				 *  a) tag is sealed (so we are here), and
-				 *  b) s.valid == 1 and this bit is a 'bad' bit, and
-				 *  c) after tag ECC (corrected by tag ECC) s.valid == 0.
-				 *
-				 * So we need to try tag ECC (don't treat it as bad block if ECC failed)
-				 */
-
-				struct uffs_TagStoreSt s;
-
-				memcpy(&s, &tag->s, sizeof(s));
-				tmp_ret = TagEccCorrect(&s);
-
-				if (tmp_ret <= 0 || !TAG_IS_VALID(tag))	// can not corrected by ECC.
-					goto ext;
-			}
-			else {
-				goto ext;
-			}				
-		}
-
-		// do tag ecc correction
-		if (dev->attr->ecc_opt != UFFS_ECC_NONE) {
-			ret = TagEccCorrect(&tag->s);
-			ret = (ret < 0 ? UFFS_FLASH_ECC_FAIL :
-					(ret > 0 ? UFFS_FLASH_ECC_OK : UFFS_FLASH_NO_ERR));
-
-			if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-				is_bad = U_TRUE;
-
-			if (UFFS_FLASH_HAVE_ERR(ret))
-				goto ext;
-		}
-	}
-
-ext:
-	if (is_bad) {
-		uffs_BadBlockAdd(dev, block);
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"A new bad block (%d) is detected.", block);
-	}
-
-	if (spare_buf)
-		uffs_PoolPut(SPOOL(dev), spare_buf);
-
-	return ret;
-}
-
-/**
- * Read page data to buf (do ECC error correction if needed)
- * \param[in] dev uffs device
- * \param[in] block flash block num
- * \param[in] page flash page num of the block
- * \param[out] buf holding the read out data
- * \param[in] skip_ecc skip ecc when reading data from flash
- *
- * \return	#UFFS_FLASH_NO_ERR: success and/or has no flip bits.
- *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
- *			#UFFS_FLASH_ECC_FAIL: spare data has flip bits and ecc correct failed.
- *			#UFFS_FLASH_ECC_OK: spare data has flip bits and corrected by ecc.
- *			#UFFS_FLASH_CRC_ERR: CRC verification failed.
- *			#UFFS_FLASH_UNKNOWN_ERR:
- *
- * \note if skip_ecc is U_TRUE, skip CRC as well.
- */
-int uffs_FlashReadPage(uffs_Device *dev, int block, int page, uffs_Buf *buf, UBOOL skip_ecc)
-{
-	uffs_FlashOps *ops = dev->ops;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	int size = dev->com.pg_size;
-	u8 ecc_buf[UFFS_MAX_ECC_SIZE];
-	u8 ecc_store[UFFS_MAX_ECC_SIZE];
-	UBOOL is_bad = U_FALSE;
-#ifdef CONFIG_ENABLE_PAGE_DATA_CRC
-	UBOOL crc_ok = U_TRUE;
-#endif
-	u8 * spare;
-
-	int ret = UFFS_FLASH_UNKNOWN_ERR;
-
-	spare = (u8 *) uffs_PoolGet(SPOOL(dev));
-	if (spare == NULL)
-		goto ext;
-
-	if (ops->ReadPageWithLayout) {
-		if (skip_ecc)
-			ret = ops->ReadPageWithLayout(dev, block, page, buf->header, size, NULL, NULL, NULL);
-		else
-			ret = ops->ReadPageWithLayout(dev, block, page, buf->header, size, ecc_buf, NULL, ecc_store);
-	}
-	else {
-		if (skip_ecc)
-			ret = ops->ReadPage(dev, block, page, buf->header, size, NULL, NULL, 0);
-		else
-			ret = ops->ReadPage(dev, block, page, buf->header, size, ecc_buf, spare, dev->mem.spare_data_size);
-	}
-
-	if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-		is_bad = U_TRUE;
-
-	if (UFFS_FLASH_HAVE_ERR(ret))
-		goto ext;
-
-#ifdef CONFIG_ENABLE_PAGE_DATA_CRC
-	if (!skip_ecc) {
-		crc_ok = (HEADER(buf)->crc == uffs_crc16sum(buf->data, size - sizeof(struct uffs_MiniHeaderSt)) ? U_TRUE : U_FALSE);
-
-		if (crc_ok)
-			goto ext;	// CRC is matched, no need to do ECC correction.
-		else {
-			if (dev->attr->ecc_opt == UFFS_ECC_NONE || dev->attr->ecc_opt == UFFS_ECC_HW_AUTO) {
-				// ECC is not enabled or ecc correction already done, error return immediately,
-				// otherwise, we try CRC check again after ecc correction.
-				ret = UFFS_FLASH_CRC_ERR;
-				goto ext;
-			}
-		}
-	}
-#endif
-
-	// make ECC for UFFS_ECC_SOFT
-	if (attr->ecc_opt == UFFS_ECC_SOFT && !skip_ecc)
-		uffs_EccMake(buf->header, size, ecc_buf);
-
-	// unload ecc_store if driver doesn't do the layout
-	if (ops->ReadPageWithLayout == NULL) {
-		if (!skip_ecc && (attr->ecc_opt == UFFS_ECC_SOFT || attr->ecc_opt == UFFS_ECC_HW))
-			uffs_FlashUnloadSpare(dev, spare, NULL, ecc_store);
-	}
-
-	// check page data ecc
-	if (!skip_ecc && (dev->attr->ecc_opt == UFFS_ECC_SOFT || dev->attr->ecc_opt == UFFS_ECC_HW)) {
-
-		ret = uffs_EccCorrect(buf->header, size, ecc_store, ecc_buf);
-		ret = (ret < 0 ? UFFS_FLASH_ECC_FAIL :
-				(ret > 0 ? UFFS_FLASH_ECC_OK : UFFS_FLASH_NO_ERR));
-
-		if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-			is_bad = U_TRUE;
-
-		if (UFFS_FLASH_HAVE_ERR(ret))
-			goto ext;
-	}
-
-#ifdef CONFIG_ENABLE_PAGE_DATA_CRC
-	if (!skip_ecc && !UFFS_FLASH_HAVE_ERR(ret)) {
-		// Everything seems ok, do CRC check again.
-		if (HEADER(buf)->crc == uffs_crc16sum(buf->data, size - sizeof(struct uffs_MiniHeaderSt))) {
-			ret = UFFS_FLASH_CRC_ERR;
-			goto ext;
-		}
-	}
-#endif
-
-ext:
-	switch(ret) {
-		case UFFS_FLASH_IO_ERR:
-			uffs_Perror(UFFS_MSG_NORMAL, "Read block %d page %d I/O error", block, page);
-			break;
-		case UFFS_FLASH_ECC_FAIL:
-			uffs_Perror(UFFS_MSG_NORMAL, "Read block %d page %d ECC failed", block, page);
-			ret = UFFS_FLASH_BAD_BLK;	// treat ECC FAIL as BAD BLOCK
-			is_bad = U_TRUE;
-			break;
-		case UFFS_FLASH_ECC_OK:
-			uffs_Perror(UFFS_MSG_NORMAL, "Read block %d page %d bit flip corrected by ECC", block, page);
-			break;
-		case UFFS_FLASH_BAD_BLK:
-			uffs_Perror(UFFS_MSG_NORMAL, "Read block %d page %d BAD BLOCK found", block, page);
-			break;
-		case UFFS_FLASH_UNKNOWN_ERR:
-			uffs_Perror(UFFS_MSG_NORMAL, "Read block %d page %d UNKNOWN error!", block, page);
-			break;
-		case UFFS_FLASH_CRC_ERR:
-			uffs_Perror(UFFS_MSG_NORMAL, "Read block %d page %d CRC failed", block, page);
-			break;
-		default:
-			break;
-	}
-
-	if (is_bad)
-		uffs_BadBlockAdd(dev, block);
-
-	if (spare)
-		uffs_PoolPut(SPOOL(dev), spare);
-
-
-	return ret;
-}
-
-/**
- * make spare from tag and ecc
- *
- * \param[in] dev uffs dev
- * \param[in] ts uffs tag store, NULL if don't pack tag store
- * \param[in] ecc ecc of data, NULL if don't pack ecc
- * \param[out] spare output buffer
- * \note spare buffer size: dev->mem.spare_data_size,
- *		 all unpacked bytes will be inited 0xFF
- */
-void uffs_FlashMakeSpare(uffs_Device *dev,
-						 const uffs_TagStore *ts, const u8 *ecc, u8* spare)
-{
-	u8 *p_ts = (u8 *)ts;
-	int ts_size = TAG_STORE_SIZE;
-	int ecc_size = ECC_SIZE(dev);
-	int n;
-	const u8 *p;
-
-	if (!uffs_Assert(spare != NULL, "invalid param"))
-		return;
-
-	memset(spare, 0xFF, dev->mem.spare_data_size);	// initialize as 0xFF.
-	SEAL_BYTE(dev, spare) = 0;						// set seal byte = 0.
-
-	// load ecc
-	p = dev->attr->ecc_layout;
-	if (p && ecc) {
-		while (*p != 0xFF && ecc_size > 0) {
-			n = (p[1] > ecc_size ? ecc_size : p[1]);
-			memcpy(spare + p[0], ecc, n);
-			ecc_size -= n;
-			ecc += n;
-			p += 2;
-		}
-	}
-
-	p = dev->attr->data_layout;
-	while (*p != 0xFF && ts_size > 0) {
-		n = (p[1] > ts_size ? ts_size : p[1]);
-		memcpy(spare + p[0], p_ts, n);
-		ts_size -= n;
-		p_ts += n;
-		p += 2;
-	}
-
-	uffs_Assert(SEAL_BYTE(dev, spare) == 0, "Make spare fail!");
-}
-
-/**
- * write the whole page, include data and tag
- *
- * \param[in] dev uffs device
- * \param[in] block
- * \param[in] page
- * \param[in] buf contains data to be wrote
- * \param[in] tag tag to be wrote
- *
- * \return	#UFFS_FLASH_NO_ERR: success.
- *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
- *			#UFFS_FLASH_BAD_BLK: a new bad block detected.
- */
-int uffs_FlashWritePageCombine(uffs_Device *dev,
-							   int block, int page,
-							   uffs_Buf *buf, uffs_Tags *tag)
-{
-	uffs_FlashOps *ops = dev->ops;
-	int size = dev->com.pg_size;
-	u8 ecc_buf[UFFS_MAX_ECC_SIZE];
-	u8 *ecc = NULL;
-	u8 *spare;
-	struct uffs_MiniHeaderSt *header;
-	int ret = UFFS_FLASH_UNKNOWN_ERR;
-	UBOOL is_bad = U_FALSE;
-	uffs_Buf *verify_buf;
-#ifdef CONFIG_PAGE_WRITE_VERIFY
-	uffs_Tags chk_tag;
-#endif
-	
-	spare = (u8 *) uffs_PoolGet(SPOOL(dev));
-	if (spare == NULL)
-		goto ext;
-
-	// setup header
-	header = HEADER(buf);
-	memset(header, 0xFF, sizeof(struct uffs_MiniHeaderSt));
-	header->status = 0;
-#ifdef CONFIG_ENABLE_PAGE_DATA_CRC
-	header->crc = uffs_crc16sum(buf->data, size - sizeof(struct uffs_MiniHeaderSt));
-#endif
-
-	// setup tag
-	TAG_DIRTY_BIT(tag) = TAG_DIRTY;		//!< set dirty bit
-	TAG_VALID_BIT(tag) = TAG_VALID;		//!< set valid bit
-	SEAL_TAG(tag);						//!< seal tag (the real seal byte will be set in uffs_FlashMakeSpare())
-
-	if (dev->attr->ecc_opt != UFFS_ECC_NONE)
-		TagMakeEcc(&tag->s);
-	else
-		tag->s.tag_ecc = TAG_ECC_DEFAULT;
-	
-	if (dev->attr->ecc_opt == UFFS_ECC_SOFT) {
-		uffs_EccMake(buf->header, size, ecc_buf);
-		ecc = ecc_buf;
-	}
-	else if (dev->attr->ecc_opt == UFFS_ECC_HW) {
-		ecc = ecc_buf;
-	}
-
-	if (ops->WritePageWithLayout) {
-		ret = ops->WritePageWithLayout(dev, block, page,
-							buf->header, size, ecc, &tag->s);
-	}
-	else {
-
-		if (!uffs_Assert(!(dev->attr->layout_opt == UFFS_LAYOUT_FLASH ||
-					dev->attr->ecc_opt == UFFS_ECC_HW ||
-					dev->attr->ecc_opt == UFFS_ECC_HW_AUTO), "WritePageWithLayout() not implemented ?")) {
-			ret = UFFS_FLASH_IO_ERR;
-			goto ext;
-		}
-
-		uffs_FlashMakeSpare(dev, &tag->s, ecc, spare);
-
-		ret = ops->WritePage(dev, block, page, buf->header, size, spare, dev->mem.spare_data_size);
-
-	}
-	
-	if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-		is_bad = U_TRUE;
-
-	if (UFFS_FLASH_HAVE_ERR(ret))
-		goto ext;
-
-#ifdef CONFIG_PAGE_WRITE_VERIFY
-	verify_buf = uffs_BufClone(dev, NULL);
-	if (verify_buf) {
-		ret = uffs_FlashReadPage(dev, block, page, verify_buf, U_FALSE);
-		if (!UFFS_FLASH_HAVE_ERR(ret)) {
-			if (memcmp(buf->header, verify_buf->header, size) != 0) {
-				uffs_Perror(UFFS_MSG_NORMAL,
-							"Page write verify failed (block %d page %d)",
-							block, page);
-				ret = UFFS_FLASH_BAD_BLK;
-			}
-		}
-
-		uffs_BufFreeClone(dev, verify_buf);
-	}
-	else {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Insufficient buf, clone buf failed.");
-	}
-
-	ret = uffs_FlashReadPageTag(dev, block, page, &chk_tag);
-	if (UFFS_FLASH_HAVE_ERR(ret))
-		goto ext;
-	
-	if (memcmp(&tag->s, &chk_tag.s, sizeof(uffs_TagStore)) != 0) {
-		uffs_Perror(UFFS_MSG_NORMAL, "Page tag write verify failed (block %d page %d)",
-					block, page);
-		ret = UFFS_FLASH_BAD_BLK;
-	}
-
-	if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-		is_bad = U_TRUE;
-	
-#endif
-ext:
-	if (is_bad)
-		uffs_BadBlockAdd(dev, block);
-
-	if (spare)
-		uffs_PoolPut(SPOOL(dev), spare);
-
-	return ret;
-}
-
-/**
- * mark a clean page tag as 'dirty' and 'invalid'.
- *
- * \param[in] dev uffs device
- * \param[in] bc block info
- * \param[in] page
- *
- * \return	#UFFS_FLASH_NO_ERR: success.
- *			#UFFS_FLASH_IO_ERR: I/O error, expect retry ?
- *			#UFFS_FLASH_BAD_BLK: a new bad block detected.
- */
-int uffs_FlashMarkDirtyPage(uffs_Device *dev, uffs_BlockInfo *bc, int page)
-{
-	u8 *spare;
-	uffs_FlashOps *ops = dev->ops;
-	UBOOL is_bad = U_FALSE;
-	int ret = UFFS_FLASH_UNKNOWN_ERR;
-	int block = bc->block;
-	uffs_Tags *tag = GET_TAG(bc, page);
-	struct uffs_TagStoreSt *ts = &tag->s;
-
-	spare = (u8 *) uffs_PoolGet(SPOOL(dev));
-	if (spare == NULL)
-		goto ext;
-
-	memset(ts, 0xFF, sizeof(struct uffs_TagStoreSt));
-	ts->dirty = TAG_DIRTY;  // set only 'dirty' bit, leave 'valid' bit to 1 (invalid).
-	
-	if (dev->attr->ecc_opt != UFFS_ECC_NONE)
-		TagMakeEcc(ts);
-
-	if (ops->WritePageWithLayout) {
-		ret = ops->WritePageWithLayout(dev, block, page, NULL, 0, NULL, ts);
-	}
-	else {
-		uffs_FlashMakeSpare(dev, ts, NULL, spare);
-		ret = ops->WritePage(dev, block, page, NULL, 0, spare, dev->mem.spare_data_size);
-	}
-
-	if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-		is_bad = U_TRUE;
-
-ext:
-	if (is_bad)
-		uffs_BadBlockAdd(dev, block);
-
-	if (spare)
-		uffs_PoolPut(SPOOL(dev), spare);
-
-	return ret;
-}
-
-/** Mark this block as bad block */
-URET uffs_FlashMarkBadBlock(uffs_Device *dev, int block)
-{
-	int ret;
-	uffs_BlockInfo *bc;
-
-	uffs_Perror(UFFS_MSG_NORMAL, "Mark bad block: %d", block);
-
-	bc = uffs_BlockInfoGet(dev, block);
-	if (bc) {
-		uffs_BlockInfoExpire(dev, bc, UFFS_ALL_PAGES);	// expire this block, just in case it's been cached before
-		uffs_BlockInfoPut(dev, bc);
-	}
-
-	if (dev->ops->MarkBadBlock)
-		return dev->ops->MarkBadBlock(dev, block) == 0 ? U_SUCC : U_FAIL;
-
-#ifdef CONFIG_ERASE_BLOCK_BEFORE_MARK_BAD
-	ret = dev->ops->EraseBlock(dev, block);
-	if (ret != UFFS_FLASH_IO_ERR) {
-		// note: even EraseBlock return UFFS_FLASH_BAD_BLK,
-		//			we still process it ... not recommended for most NAND flash.
-#endif
-	if (dev->ops->WritePageWithLayout)
-		ret = dev->ops->WritePageWithLayout(dev, block, 0, NULL, 0, NULL, NULL);
-	else
-		ret = dev->ops->WritePage(dev, block, 0, NULL, 0, NULL, 0);
-
-#ifdef CONFIG_ERASE_BLOCK_BEFORE_MARK_BAD
-	}
-#endif
-
-	return ret == UFFS_FLASH_NO_ERR ? U_SUCC : U_FAIL;
-}
-
-/** Is this block a bad block ? */
-UBOOL uffs_FlashIsBadBlock(uffs_Device *dev, int block)
-{
-	struct uffs_FlashOpsSt *ops = dev->ops;
-	UBOOL ret = U_FALSE;
-
-	if (ops->IsBadBlock) {
-		/* if flash driver provide 'IsBadBlock' function, call it */
-		ret = (ops->IsBadBlock(dev, block) == 0 ? U_FALSE : U_TRUE);
-	}
-	else {
-		/* otherwise we call ReadPage[WithLayout]() to get bad block status byte */
-		/* check the first page */
-		if (ops->ReadPageWithLayout) {
-			ret = (ops->ReadPageWithLayout(dev, block, 0, NULL, 0, NULL, NULL, NULL)
-												== UFFS_FLASH_BAD_BLK ? U_TRUE : U_FALSE);
-		}
-		else {
-			ret = (ops->ReadPage(dev, block, 0, NULL, 0, NULL, NULL, 0)
-												== UFFS_FLASH_BAD_BLK ? U_TRUE : U_FALSE);
-		}
-
-		if (ret == U_FALSE) {
-			/* check the second page */
-			if (ops->ReadPageWithLayout) {
-				ret = (ops->ReadPageWithLayout(dev, block, 0, NULL, 0, NULL, NULL, NULL) 
-													== UFFS_FLASH_BAD_BLK ? U_TRUE : U_FALSE);
-			}
-			else {
-				ret = (ops->ReadPage(dev, block, 0, NULL, 0, NULL, NULL, 0)
-													== UFFS_FLASH_BAD_BLK ? U_TRUE : U_FALSE);
-			}
-		}
-	}
-
-	//uffs_Perror(UFFS_MSG_NOISY, "Block %d is %s", block, ret ? "BAD" : "GOOD");
-
-	return ret;
-}
-
-/** Erase flash block */
-URET uffs_FlashEraseBlock(uffs_Device *dev, int block)
-{
-	int ret;
-	uffs_BlockInfo *bc;
-
-	ret = dev->ops->EraseBlock(dev, block);
-
-	if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-		uffs_BadBlockAdd(dev, block);
-
-	bc = uffs_BlockInfoGet(dev, block);
-	if (bc) {
-		uffs_BlockInfoExpire(dev, bc, UFFS_ALL_PAGES);
-		uffs_BlockInfoPut(dev, bc);
-	}
-	return UFFS_FLASH_HAVE_ERR(ret) ? U_FAIL : U_SUCC;
-}
-
-/**
- * Check the block by reading all pages.
- *
- * \return U_SUCC - all pages are clean,
- *         U_FAIL - block is not clean
- */
-URET uffs_FlashCheckErasedBlock(uffs_Device *dev, int block)
-{
-	u8 *spare = NULL;
-	uffs_FlashOps *ops = dev->ops;
-	int ret = U_SUCC;
-	int page;
-	int flash_ret;
-	u8 ecc_store[UFFS_MAX_ECC_SIZE];
-	uffs_TagStore ts;
-	uffs_Buf *buf = NULL;
-	int size = dev->com.pg_size;
-	int i;
-	u8 *p;
-	
-	spare = (u8 *) uffs_PoolGet(SPOOL(dev));
-	
-	if (spare == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Can't allocate spare buf.");
-		goto ext;
-	}
-	
-	buf = uffs_BufClone(dev, NULL);
-	
-	if (buf == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Can't clone buf.");
-		goto ext;
-	}
-	
-	for (page = 0; page < dev->attr->pages_per_block; page++) {
-		if (ops->ReadPageWithLayout) {
-			
-			flash_ret = ops->ReadPageWithLayout(dev, block, page, buf->header, size, NULL, &ts, ecc_store);
-			
-			if (flash_ret != UFFS_FLASH_IO_ERR) {
-				// check page tag, should be all 0xFF
-				for (i = 0, p = (u8 *)(&ts); i < sizeof(ts); i++, p++) {
-					if (*p != 0xFF) {
-						ret = U_FAIL;
-						goto ext;
-					}
-				}
-				
-				// for hw or soft ecc, check stored ecc, should be all 0xFF
-				if (dev->attr->ecc_opt == UFFS_ECC_HW ||
-					dev->attr->ecc_opt == UFFS_ECC_SOFT)
-				{
-					for (i = 0, p = ecc_store; i < ECC_SIZE(dev); i++, p++) {
-						if (*p != 0xFF) {
-							ret = U_FAIL;
-							goto ext;
-						}
-					}
-				}
-			}
-		}
-		else {
-			
-			flash_ret = ops->ReadPage(dev, block, page, buf->header, size, NULL, spare, dev->attr->spare_size);
-			if (flash_ret != UFFS_FLASH_IO_ERR) {
-				// check spare data, should be all 0xFF
-				for (i = 0, p = spare; i < dev->attr->spare_size; i++, p++) {
-					if (*p != 0xFF) {
-						ret = U_FAIL;
-						goto ext;
-					}
-				}
-			}
-		}
-		
-		if (flash_ret != UFFS_FLASH_IO_ERR) {
-			// check page data, should be all 0xFF
-			for (i = 0, p = buf->header; i < size; i++, p++) {
-				if (*p != 0xFF) {
-					ret = U_FAIL;
-					goto ext;
-				}
-			}
-		}
-		
-	}
-	
-
-ext:
-	if (spare)
-		uffs_PoolPut(SPOOL(dev), spare);
-	
-	if (buf)
-		uffs_BufFreeClone(dev, buf);
-	
-	
-	return ret;
-}
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_fs.c b/components/dfs/filesystems/uffs/src/uffs/uffs_fs.c
deleted file mode 100644
index d467c3ec97..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_fs.c
+++ /dev/null
@@ -1,1944 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_fs.c
- * \brief basic file operations
- * \author Ricky Zheng, created 12th May, 2005
- */
-#include "uffs_config.h"
-#include "uffs/uffs_fs.h"
-#include "uffs/uffs_pool.h"
-#include "uffs/uffs_ecc.h"
-#include "uffs/uffs_badblock.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_mtb.h"
-#include "uffs/uffs_utils.h"
-#include <string.h> 
-#include <stdio.h>
-
-#define PFX "fs  : "
-
-#define GET_OBJ_NODE_SERIAL(obj) \
-	( \
-		(obj)->type == UFFS_TYPE_DIR ? \
-			(obj)->node->u.dir.serial :	(obj)->node->u.file.serial \
-	 )
-
-#define GET_OBJ_NODE_FATHER(obj) \
-	( \
-		(obj)->type == UFFS_TYPE_DIR ? \
-			(obj)->node->u.dir.parent :	(obj)->node->u.file.parent \
-	 )
-
-#define GET_SERIAL_FROM_OBJECT(obj) \
-			((obj)->node ? GET_OBJ_NODE_SERIAL(obj) : obj->serial)
-
-#define GET_FATHER_FROM_OBJECT(obj) \
-			((obj)->node ? GET_OBJ_NODE_FATHER(obj) : obj->parent)
-
-
-#define GET_BLOCK_FROM_NODE(obj) \
-	( \
-		(obj)->type == UFFS_TYPE_DIR ? \
-			(obj)->node->u.dir.block : (obj)->node->u.file.block \
-	 )
-
-typedef enum {
-	eDRY_RUN = 0,
-	eREAL_RUN,
-} RunOptionE;
-
-
-static void do_ReleaseObjectResource(uffs_Object *obj);
-static URET do_TruncateObject(uffs_Object *obj, u32 remain, RunOptionE run_opt);
-
-
-static int _object_data[(sizeof(struct uffs_ObjectSt) * MAX_OBJECT_HANDLE) / sizeof(int)];
-
-static uffs_Pool _object_pool;
-
-
-uffs_Pool * uffs_GetObjectPool(void)
-{
-	return &_object_pool;
-}
-
-/**
- * initialise object buffers, called by UFFS internal
- */
-URET uffs_InitObjectBuf(void)
-{
-	return uffs_PoolInit(&_object_pool, _object_data, sizeof(_object_data),
-			sizeof(uffs_Object), MAX_OBJECT_HANDLE);
-}
-
-/**
- * Release object buffers, called by UFFS internal
- */
-URET uffs_ReleaseObjectBuf(void)
-{
-	return uffs_PoolRelease(&_object_pool);
-}
-
-/**
- * Get free object handlers
- */
-int uffs_GetFreeObjectHandlers(void)
-{
-	int count = 0;
-
-	uffs_GlobalFsLockLock();
-	count = uffs_PoolGetFreeCount(&_object_pool);
-	uffs_GlobalFsLockUnlock();
-
-	return count;
-}
-
-/**
- * Put all object which match dev
- */
-int uffs_PutAllObjectBuf(uffs_Device *dev)
-{
-	int count = 0;
-	uffs_Object * obj = NULL;
-
-	do {
-		obj = (uffs_Object *) uffs_PoolFindNextAllocated(&_object_pool, (void *)obj);
-		if (obj && obj->dev && obj->dev->dev_num == dev->dev_num) {
-			uffs_PutObject(obj);
-			count++;
-		}
-	} while (obj);
-
-	return count;
-}
-
-/**
- * alloc a new object structure
- * \return the new object
- */
-uffs_Object * uffs_GetObject(void)
-{
-	uffs_Object * obj;
-
-	obj = (uffs_Object *) uffs_PoolGet(&_object_pool);
-	if (obj) {
-		memset(obj, 0, sizeof(uffs_Object));
-		obj->attr_loaded = U_FALSE;
-		obj->open_succ = U_FALSE;
-	}
-
-	return obj;
-}
-
-/**
- * re-initialize an object.
- *
- * \return U_SUCC or U_FAIL if the object is openned.
- */
-URET uffs_ReInitObject(uffs_Object *obj)
-{
-	if (obj == NULL)
-		return U_FAIL;
-
-	if (obj->open_succ == U_TRUE)
-		return U_FAIL;	// can't re-init an openned object.
-
-	memset(obj, 0, sizeof(uffs_Object));
-	obj->attr_loaded = U_FALSE;
-	obj->open_succ = U_FALSE;
-
-	return U_SUCC;	
-}
-
-/**
- * put the object struct back to system
- */
-void uffs_PutObject(uffs_Object *obj)
-{
-	if (obj)
-		uffs_PoolPut(&_object_pool, obj);
-}
-
-/**
- * \return the internal index num of object
- */
-int uffs_GetObjectIndex(uffs_Object *obj)
-{
-	return uffs_PoolGetIndex(&_object_pool, obj);
-}
-
-/**
- * \return the object by the internal index
- */
-uffs_Object * uffs_GetObjectByIndex(int idx)
-{
-	return (uffs_Object *) uffs_PoolGetBufByIndex(&_object_pool, idx);
-}
-
-#ifdef CONFIG_PER_DEVICE_LOCK
-static void uffs_ObjectDevLock(uffs_Object *obj)
-{
-	if (obj) {
-		if (obj->dev) {
-			uffs_DeviceLock(obj->dev);
-			obj->dev_lock_count++;
-		}
-	}
-}
-
-static void uffs_ObjectDevUnLock(uffs_Object *obj)
-{
-	if (obj) {
-		if (obj->dev) {
-			obj->dev_lock_count--;
-			uffs_DeviceUnLock(obj->dev);
-		}
-	}
-} 
-#else
-#define uffs_ObjectDevLock(obj) do { } while (0)
-#define uffs_ObjectDevUnLock(obj) do { } while (0)
-
-#endif
-
-
-
-/**
- * create a new object and open it if success
- */
-URET uffs_CreateObject(uffs_Object *obj, const char *fullname, int oflag)
-{
-	URET ret = U_FAIL;
-
-	oflag |= UO_CREATE;
-
-	if (uffs_ParseObject(obj, fullname) == U_SUCC)
-		uffs_CreateObjectEx(obj, obj->dev, obj->parent,
-								obj->name, obj->name_len, oflag);
-
-	if (obj->err == UENOERR) {
-		ret = U_SUCC;
-	}
-	else {
-		if (obj->dev) {
-			uffs_PutDevice(obj->dev);
-			obj->dev = NULL;
-		}
-		ret = U_FAIL;
-	}
-
-	return ret;
-}
-
-
-
-/**
- * return the dir length from a path.
- * for example, path = "abc/def/xyz", return 8 ("abc/def/")
- */
-static int GetDirLengthFromPath(const char *path, int path_len)
-{
-	const char *p = path;
-
-	if (path_len > 0) {
-		if (path[path_len - 1] == '/')
-			path_len--;		// skip the last '/'
-
-		p = path + path_len - 1;
-		while (p > path && *p != '/')
-			p--; 
-	}
-
-	return p - path;
-}
-
-/**
- * Create an object under the given dir.
- *
- * \param[in|out] obj to be created, obj is returned from uffs_GetObject()
- * \param[in] dev uffs device
- * \param[in] dir object parent dir serial NO.
- * \param[in] name point to the object name
- * \param[in] name_len object name length
- * \param[in] oflag open flag. UO_DIR should be passed for an dir object.
- *
- * \return U_SUCC or U_FAIL (error code in obj->err).
- */
-URET uffs_CreateObjectEx(uffs_Object *obj, uffs_Device *dev, 
-						   int dir, const char *name, int name_len, int oflag)
-{
-	uffs_Buf *buf = NULL;
-	uffs_FileInfo fi;
-	TreeNode *node;
-
-	obj->dev = dev;
-	obj->parent = dir;
-	obj->type = (oflag & UO_DIR ? UFFS_TYPE_DIR : UFFS_TYPE_FILE);
-	obj->name = name;
-	obj->name_len = name_len;
-
-	if (obj->type == UFFS_TYPE_DIR) {
-		if (name[obj->name_len - 1] == '/')		// get rid of ending '/' for dir
-			obj->name_len--;
-	}
-	else {
-		if (name[obj->name_len - 1] == '/') {	// file name can't end with '/'
-			obj->err = UENOENT;
-			goto ext;
-		}
-	}
-
-	if (obj->name_len == 0) {	// empty name ?
-		obj->err = UENOENT;
-		goto ext;
-	}
-
-	obj->sum = uffs_MakeSum16(obj->name, obj->name_len);
-
-	uffs_ObjectDevLock(obj);
-
-	if (obj->type == UFFS_TYPE_DIR) {
-		//find out whether have file with the same name
-		node = uffs_TreeFindFileNodeByName(obj->dev, obj->name,
-											obj->name_len, obj->sum,
-											obj->parent);
-		if (node != NULL) {
-			obj->err = UEEXIST;	// we can't create a dir has the
-								// same name with exist file.
-			goto ext_1;
-		}
-		obj->node = uffs_TreeFindDirNodeByName(obj->dev, obj->name,
-												obj->name_len, obj->sum,
-												obj->parent);
-		if (obj->node != NULL) {
-			obj->err = UEEXIST; // we can't create a dir already exist.
-			goto ext_1;
-		}
-	}
-	else {
-		//find out whether have dir with the same name
-		node = uffs_TreeFindDirNodeByName(obj->dev, obj->name,
-											obj->name_len, obj->sum,
-											obj->parent);
-		if (node != NULL) {
-			obj->err = UEEXIST;
-			goto ext_1;
-		}
-		obj->node = uffs_TreeFindFileNodeByName(obj->dev, obj->name,
-												obj->name_len, obj->sum,
-												obj->parent);
-		if (obj->node) {
-			/* file already exist, truncate it to zero length */
-			obj->serial = GET_OBJ_NODE_SERIAL(obj);
-			obj->open_succ = U_TRUE; // set open_succ to U_TRUE before
-									 // call do_TruncateObject()
-			if (do_TruncateObject(obj, 0, eDRY_RUN) == U_SUCC)
-				do_TruncateObject(obj, 0, eREAL_RUN);
-			goto ext_1;
-		}
-	}
-
-	/* dir|file does not exist, create a new one */
-	obj->serial = uffs_FindFreeFsnSerial(obj->dev);
-	if (obj->serial == INVALID_UFFS_SERIAL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "No free serial num!");
-		obj->err = UENOMEM;
-		goto ext_1;
-	}
-
-	if (obj->dev->tree.erased_count < obj->dev->cfg.reserved_free_blocks) {
-		uffs_Perror(UFFS_MSG_NOISY,
-					"insufficient block in create obj");
-		obj->err = UENOMEM;
-		goto ext_1;
-	}
-
-	buf = uffs_BufNew(obj->dev, obj->type, obj->parent, obj->serial, 0);
-	if (buf == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS,
-						"Can't create new buffer when create obj!");
-		goto ext_1;
-	}
-
-	memset(&fi, 0, sizeof(uffs_FileInfo));
-	fi.name_len = obj->name_len < sizeof(fi.name) ? obj->name_len : sizeof(fi.name) - 1;
-	memcpy(fi.name, obj->name, fi.name_len);
-	fi.name[fi.name_len] = '\0';
-
-	fi.access = 0;
-	fi.attr |= FILE_ATTR_WRITE;
-
-	if (obj->type == UFFS_TYPE_DIR)
-		fi.attr |= FILE_ATTR_DIR;
-
-	fi.create_time = fi.last_modify = uffs_GetCurDateTime();
-
-	uffs_BufWrite(obj->dev, buf, &fi, 0, sizeof(uffs_FileInfo));
-	uffs_BufPut(obj->dev, buf);
-
-	// flush buffer immediately,
-	// so that the new node will be inserted into the tree
-	uffs_BufFlushGroup(obj->dev, obj->parent, obj->serial);
-
-	// update obj->node: after buf flushed,
-	// the NEW node can be found in the tree
-	if (obj->type == UFFS_TYPE_DIR)
-		obj->node = uffs_TreeFindDirNode(obj->dev, obj->serial);
-	else
-		obj->node = uffs_TreeFindFileNode(obj->dev, obj->serial);
-
-	if (obj->node == NULL) {
-		uffs_Perror(UFFS_MSG_NOISY, "Can't find the node in the tree ?");
-		obj->err = UEIOERR;
-		goto ext_1;
-	}
-
-	if (obj->type == UFFS_TYPE_FILE)
-		obj->node->u.file.len = 0;	//init the length to 0
-
-	if (HAVE_BADBLOCK(obj->dev))
-		uffs_BadBlockRecover(obj->dev);
-
-	obj->open_succ = U_TRUE;
-
-ext_1:
-	uffs_ObjectDevUnLock(obj);
-ext:
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-}
-
-/**
- * Open object under the given dir.
- *
- * \param[in|out] obj to be open, obj is returned from uffs_GetObject()
- * \param[in] dev uffs device
- * \param[in] dir object parent dir serial NO.
- * \param[in] name point to the object name
- * \param[in] name_len object name length
- * \param[in] oflag open flag. UO_DIR should be passed for an dir object.
- *
- * \return U_SUCC or U_FAIL (error code in obj->err).
- */
-URET uffs_OpenObjectEx(uffs_Object *obj, uffs_Device *dev, 
-					   int dir, const char *name, int name_len, int oflag)
-{
-
-	obj->err = UENOERR;
-	obj->open_succ = U_FALSE;
-
-	if (dev == NULL) {
-		obj->err = UEINVAL;
-		goto ext;
-	}
-
-	if ((oflag & (UO_WRONLY | UO_RDWR)) == (UO_WRONLY | UO_RDWR)) {
-		/* UO_WRONLY and UO_RDWR can't appear together */
-		uffs_Perror(UFFS_MSG_NOISY,
-					"UO_WRONLY and UO_RDWR can't appear together");
-		obj->err = UEINVAL;
-		goto ext;
-	}
-
-	obj->oflag = oflag;
-	obj->parent = dir;
-	obj->type = (oflag & UO_DIR ? UFFS_TYPE_DIR : UFFS_TYPE_FILE);
-	obj->pos = 0;
-	obj->dev = dev;
-	obj->name = name;
-	obj->name_len = name_len;
-
-	// adjust the name length
-	if (obj->type == UFFS_TYPE_DIR) {
-		if (obj->name_len > 0 && name[obj->name_len - 1] == '/')
-			obj->name_len--;	// truncate the ending '/' for dir
-	}
-
-	obj->sum = (obj->name_len > 0 ? uffs_MakeSum16(name, obj->name_len) : 0);
-	obj->head_pages = obj->dev->attr->pages_per_block - 1;
-
-	if (obj->type == UFFS_TYPE_DIR) {
-		if (obj->name_len == 0) {
-			if (dir != PARENT_OF_ROOT) {
-				uffs_Perror(UFFS_MSG_SERIOUS, "Bad parent for root dir!");
-				obj->err = UEINVAL;
-			}
-			else {
-				obj->serial = ROOT_DIR_SERIAL;
-			}
-			goto ext;
-		}
-	}
-	else {
-		if (obj->name_len == 0 || name[obj->name_len - 1] == '/') {
-			uffs_Perror(UFFS_MSG_SERIOUS, "Bad file name.");
-			obj->err = UEINVAL;
-		}
-	}
-
-
-	uffs_ObjectDevLock(obj);
-
-	if (obj->type == UFFS_TYPE_DIR) {
-		obj->node = uffs_TreeFindDirNodeByName(obj->dev, obj->name,
-												obj->name_len, obj->sum,
-												obj->parent);
-	}
-	else {
-		obj->node = uffs_TreeFindFileNodeByName(obj->dev, obj->name,
-												obj->name_len, obj->sum,
-												obj->parent);
-	}
-
-	if (obj->node == NULL) {			// dir or file not exist
-		if (obj->oflag & UO_CREATE) {	// expect to create a new one
-			uffs_ObjectDevUnLock(obj);
-			if (obj->name == NULL || obj->name_len == 0)
-				obj->err = UEEXIST;
-			else
-				uffs_CreateObjectEx(obj, dev, dir, obj->name, obj->name_len, oflag);
-			goto ext;
-		}
-		else {
-			obj->err = UENOENT;
-			goto ext_1;
-		}
-	}
-
-	if ((obj->oflag & (UO_CREATE | UO_EXCL)) == (UO_CREATE | UO_EXCL)){
-		obj->err = UEEXIST;
-		goto ext_1;
-	}
-
-	obj->serial = GET_OBJ_NODE_SERIAL(obj);
-	obj->open_succ = U_TRUE;
-
-	if (obj->oflag & UO_TRUNC)
-		if (do_TruncateObject(obj, 0, eDRY_RUN) == U_SUCC) {
-			//NOTE: obj->err will be set in do_TruncateObject() if failed.
-			do_TruncateObject(obj, 0, eREAL_RUN);
-		}
-
-ext_1:
-	uffs_ObjectDevUnLock(obj);
-ext:
-	obj->open_succ = (obj->err == UENOERR ? U_TRUE : U_FALSE);
-
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-}
-
-
-/**
- * Parse the full path name, initialize obj.
- *
- * \param[out] obj object to be initialize.
- * \param[in] name full path name.
- *
- * \return U_SUCC if the name is parsed correctly,
- *			 U_FAIL if failed, and obj->err is set.
- *
- *	\note the following fields in obj will be initialized:
- *			obj->dev
- *			obj->parent
- *			obj->name
- *			obj->name_len
- */
-URET uffs_ParseObject(uffs_Object *obj, const char *name)
-{
-	int len, m_len, d_len;
-	uffs_Device *dev;
-	const char *start, *p, *dname;
-	u16 dir;
-	TreeNode *node;
-	u16 sum;
-
-	if (uffs_ReInitObject(obj) == U_FAIL)
-		return U_FAIL;
-
-	len = strlen(name);
-	m_len = uffs_GetMatchedMountPointSize(name);
-	dev = uffs_GetDeviceFromMountPointEx(name, m_len);
-
-	if (dev) {
-		start = name + m_len;
-		d_len = GetDirLengthFromPath(start, len - m_len);
-		p = start;
-		obj->dev = dev;
-		if (m_len == len) {
-			obj->parent = PARENT_OF_ROOT;
-			obj->name = NULL;
-			obj->name_len = 0;
-		}
-		else {
-			dir = ROOT_DIR_SERIAL;
-			dname = start;
-			while (p - start < d_len) {
-				while (*p != '/') p++;
-				sum = uffs_MakeSum16(dname, p - dname);
-				node = uffs_TreeFindDirNodeByName(dev, dname, p - dname, sum, dir);
-				if (node == NULL) {
-					obj->err = UENOENT;
-					break;
-				}
-				else {
-					dir = node->u.dir.serial;
-					p++; // skip the '/'
-					dname = p;
-				}
-			}
-			obj->parent = dir;
-			obj->name = start + (d_len > 0 ? d_len + 1 : 0);
-			obj->name_len = len - (d_len > 0 ? d_len + 1 : 0) - m_len;
-		}
-
-		if (obj->err != UENOERR) {
-			uffs_PutDevice(obj->dev);
-			obj->dev = NULL;
-		}
-	}
-	else {
-		obj->err = UENOENT;
-	}
-
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-}
-
-
-static void do_ReleaseObjectResource(uffs_Object *obj)
-{
-	if (obj) {
-		if (obj->dev) {
-			if (HAVE_BADBLOCK(obj->dev))
-				uffs_BadBlockRecover(obj->dev);
-			if (obj->dev_lock_count > 0) {
-				uffs_ObjectDevUnLock(obj);
-			}
-			uffs_PutDevice(obj->dev);
-			obj->dev = NULL;
-			obj->open_succ = U_FALSE;
-		}
-	}
-}
-
-/**
- * Open a UFFS object
- *
- * \param[in|out] obj the object to be open
- * \param[in] name the full name of the object
- * \param[in] oflag open flag
- *
- * \return U_SUCC if object is opened successfully,
- *			 U_FAIL if failed, error code will be set to obj->err.
- */
-URET uffs_OpenObject(uffs_Object *obj, const char *name, int oflag)
-{
-	URET ret;
-
-	if (obj == NULL)
-		return U_FAIL;
-
- 	if ((ret = uffs_ParseObject(obj, name)) == U_SUCC) {
-		ret = uffs_OpenObjectEx(obj, obj->dev, obj->parent,
-									obj->name, obj->name_len, oflag);
- 	}
- 	if (ret != U_SUCC)
- 		do_ReleaseObjectResource(obj);
-
-	return ret;
-}
-
-static URET do_FlushObject(uffs_Object *obj)
-{
-	uffs_Device *dev;
-	URET ret = U_SUCC;
-	TreeNode *node = NULL;
-
-	dev = obj->dev;
-	if (obj->node) {
-		node = obj->node;
-		if (obj->type == UFFS_TYPE_DIR)
-			ret = uffs_BufFlushGroup(dev, obj->node->u.dir.parent,
-										obj->node->u.dir.serial);
-		else {
-			ret = (
-				uffs_BufFlushGroupMatchParent(dev, obj->node->u.file.serial) == U_SUCC &&
-				uffs_BufFlushGroup(dev, obj->node->u.file.parent, obj->node->u.file.serial) == U_SUCC
-				) ? U_SUCC : U_FAIL;
-		}
-		uffs_Assert(node == obj->node, "obj->node change!\n");
-	}
-
-	return ret;
-}
-
-/**
- * Flush object data.
- *
- * \param[in] obj object to be flushed
- * \return U_SUCC or U_FAIL (error code in obj->err).
- */
-URET uffs_FlushObject(uffs_Object *obj)
-{
-	if(obj->dev == NULL || obj->open_succ != U_TRUE) {
-		obj->err = UEBADF;
-		goto ext;
-	}
-
-	uffs_ObjectDevLock(obj);
-
-	if (do_FlushObject(obj) != U_SUCC)
-		obj->err = UEIOERR;
-
-	uffs_ObjectDevUnLock(obj);
-
-ext:
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-}
-
-/**
- * Close an openned object.
- *
- * \param[in] obj object to be closed
- * \return U_SUCC or U_FAIL (error code in obj->err).
- */
-URET uffs_CloseObject(uffs_Object *obj)
-{
-#ifdef CONFIG_CHANGE_MODIFY_TIME
-	uffs_Device *dev;
-	uffs_Buf *buf;
-	uffs_FileInfo fi;
-#endif
-
-	if(obj->dev == NULL || obj->open_succ != U_TRUE) {
-		obj->err = UEBADF;
-		goto ext;
-	}
-
-
-	uffs_ObjectDevLock(obj);
-
-	if (obj->oflag & (UO_WRONLY|UO_RDWR|UO_APPEND|UO_CREATE|UO_TRUNC)) {
-
-#ifdef CONFIG_CHANGE_MODIFY_TIME
-        dev = obj->dev;
-		if (obj->node) {
-			//need to change the last modify time stamp
-			if (obj->type == UFFS_TYPE_DIR)
-				buf = uffs_BufGetEx(dev, UFFS_TYPE_DIR, obj->node, 0, obj->oflag);
-			else
-				buf = uffs_BufGetEx(dev, UFFS_TYPE_FILE, obj->node, 0, obj->oflag);
-
-			if(buf == NULL) {
-				uffs_Perror(UFFS_MSG_SERIOUS, "can't get file header");
-				do_FlushObject(obj);
-				uffs_ObjectDevUnLock(obj);
-				goto ext;
-			}
-			uffs_BufRead(dev, buf, &fi, 0, sizeof(uffs_FileInfo));
-			fi.last_modify = uffs_GetCurDateTime();
-			uffs_BufWrite(dev, buf, &fi, 0, sizeof(uffs_FileInfo));
-			uffs_BufPut(dev, buf);
-		}
-#endif
-		do_FlushObject(obj);
-	}
-
-	uffs_ObjectDevUnLock(obj);
-
-ext:
-	do_ReleaseObjectResource(obj);
-
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-}
-
-static u16 GetFdnByOfs(uffs_Object *obj, u32 ofs)
-{
-	uffs_Device *dev = obj->dev;
-
-	if (ofs < (u32)(obj->head_pages * dev->com.pg_data_size)) {
-		return 0;
-	}
-	else {
-		ofs -= obj->head_pages * dev->com.pg_data_size;
-		return (ofs / (dev->com.pg_data_size * dev->attr->pages_per_block)) + 1;
-	}
-}
-
-
-static u32 GetStartOfDataBlock(uffs_Object *obj, u16 fdn)
-{
-	if (fdn == 0) {
-		return 0;
-	}
-	else {
-		return (obj->head_pages * obj->dev->com.pg_data_size) +
-					(fdn - 1) * (obj->dev->com.pg_data_size	*
-						obj->dev->attr->pages_per_block);
-	}
-}
-
-
-static int do_WriteNewBlock(uffs_Object *obj,
-						  const void *data, u32 len,
-						  u16 parent,
-						  u16 serial)
-{
-	uffs_Device *dev = obj->dev;
-	u16 page_id;
-	int wroteSize = 0;
-	int size;
-	uffs_Buf *buf;
-	URET ret;
-
-	for (page_id = 0; page_id < dev->attr->pages_per_block; page_id++) {
-		size = (len - wroteSize) > dev->com.pg_data_size ?
-					dev->com.pg_data_size : len - wroteSize;
-		if (size <= 0)
-			break;
-
-		buf = uffs_BufNew(dev, UFFS_TYPE_DATA, parent, serial, page_id);
-		if (buf == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "can't create a new page ?");
-			break;
-		}
-		// Note: if data == NULL, we will fill '\0'
-		ret = uffs_BufWrite(dev, buf, data == NULL ? NULL : (u8 *)data + wroteSize, 0, size);
-		uffs_BufPut(dev, buf);
-
-		if (ret != U_SUCC) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "write data fail!");
-			break;
-		}
-		wroteSize += size;
-		obj->node->u.file.len += size;
-	}
-
-	return wroteSize;
-}
-
-static int do_WriteInternalBlock(uffs_Object *obj,
-							   TreeNode *node,
-							   u16 fdn,
-							   const void *data,
-							   u32 len,
-							   u32 blockOfs)
-{
-	uffs_Device *dev = obj->dev;
-	u16 maxPageID;
-	u16 page_id;
-	u32 size;
-	u32 pageOfs;
-	u32 wroteSize = 0;
-	URET ret;
-	uffs_Buf *buf;
-	u32 block_start;
-	u8 type;
-	u16 parent, serial;
-
-	block_start = GetStartOfDataBlock(obj, fdn);
-
-	if (fdn == 0) {
-		type = UFFS_TYPE_FILE;
-		parent = node->u.file.parent;
-		serial = node->u.file.serial;
-	}
-	else {
-		type = UFFS_TYPE_DATA;
-		parent = node->u.data.parent;
-		serial = fdn;
-	}
-
-	if (fdn == 0)
-		maxPageID = obj->head_pages;
-	else
-		maxPageID = dev->attr->pages_per_block - 1;
-
-
-	while (wroteSize < len) {
-		page_id = blockOfs / dev->com.pg_data_size;
-		if (fdn == 0)
-			page_id++; //in file header, page_id start from 1, not 0.
-		if (page_id > maxPageID) 
-			break;
-
-		pageOfs = blockOfs % dev->com.pg_data_size;
-		size = (len - wroteSize + pageOfs) > dev->com.pg_data_size ?
-					(dev->com.pg_data_size - pageOfs) : (len - wroteSize);
-
-		if ((obj->node->u.file.len % dev->com.pg_data_size) == 0 &&
-			(blockOfs + block_start) == obj->node->u.file.len) {
-
-			buf = uffs_BufNew(dev, type, parent, serial, page_id);
-
-			if(buf == NULL) {
-				uffs_Perror(UFFS_MSG_SERIOUS, "can create a new buf!");
-				break;
-			}
-		}
-		else {
-			buf = uffs_BufGetEx(dev, type, node, page_id, obj->oflag);
-			if (buf == NULL) {
-				uffs_Perror(UFFS_MSG_SERIOUS, "can't get buffer ?");
-				break;
-			}
-		}
-
-		// Note: if data == NULL, then we will fill '\0'
-		ret = uffs_BufWrite(dev, buf, data == NULL ? NULL : (u8 *)data + wroteSize, pageOfs, size);
-
-		uffs_BufPut(dev, buf);
-
-		if (ret == U_FAIL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "write inter data fail!");
-			break;
-		}
-
-		wroteSize += size;
-		blockOfs += size;
-
-		if (block_start + blockOfs > obj->node->u.file.len)
-			obj->node->u.file.len = block_start + blockOfs;
-
-	}
-
-	return wroteSize;
-}
-
-
-/**
- * write data to obj, return remain data (0 if all data been written).
- */
-static int do_WriteObject(uffs_Object *obj, const void *data, int len)
-{
-	uffs_Device *dev = obj->dev;
-	TreeNode *fnode = obj->node;
-	int remain = len;
-	u16 fdn;
-	u32 write_start;
-	TreeNode *dnode;
-	u32 size;
-
-	while (remain > 0) {
-		write_start = obj->pos + len - remain;
-		if (write_start > fnode->u.file.len) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "write point out of file ?");
-			break;
-		}
-
-		fdn = GetFdnByOfs(obj, write_start);
-
-		if (write_start == fnode->u.file.len && fdn > 0 &&
-			write_start == GetStartOfDataBlock(obj, fdn)) {
-			if (dev->tree.erased_count < dev->cfg.reserved_free_blocks) {
-				uffs_Perror(UFFS_MSG_NOISY, "insufficient block in write obj, new block");
-				break;
-			}
-			size = do_WriteNewBlock(obj, data ? (u8 *)data + len - remain : NULL,
-										remain, fnode->u.file.serial, fdn);
-
-			//
-			// Flush the new block buffers immediately, so that the new data node will be
-			// created and put in the tree.
-			//
-			// But before do that, we need to make sure the previous
-			// data block (if exist) been flushed first.
-			//
-			if (fdn > 1) {
-				uffs_BufFlushGroup(dev, fnode->u.file.serial, fdn - 1);
-			}
-			else {
-				uffs_BufFlushGroup(dev, fnode->u.file.parent, fnode->u.file.serial);
-			}
-			// Now flush the new block.
-			uffs_BufFlushGroup(dev, fnode->u.file.serial, fdn);
-
-			if (size == 0) 
-				break;
-
-			remain -= size;
-		}
-		else {
-
-			if(fdn == 0)
-				dnode = obj->node;
-			else
-				dnode = uffs_TreeFindDataNode(dev, fnode->u.file.serial, fdn);
-
-			if(dnode == NULL) {
-				uffs_Perror(UFFS_MSG_SERIOUS, "can't find data node in tree ?");
-				obj->err = UEUNKNOWN_ERR;
-				break;
-			}
-			size = do_WriteInternalBlock(obj, dnode, fdn,
-									data ? (u8 *)data + len - remain : NULL, remain,
-									write_start - GetStartOfDataBlock(obj, fdn));
-#ifdef CONFIG_FLUSH_BUF_AFTER_WRITE
-			if (fdn == 0)
-				uffs_BufFlushGroup(dev, fnode->u.file.parent, fnode->u.file.serial);
-			else
-				uffs_BufFlushGroup(dev, fnode->u.file.serial, fdn);
-#endif
-			if (size == 0)
-				break;
-
-			remain -= size;
-		}
-	}
-
-	uffs_Assert(fnode == obj->node, "obj->node change!\n");
-
-	return remain;
-}
-
-
-/**
- * write data to obj, from obj->pos
- *
- * \param[in] obj file obj
- * \param[in] data data pointer
- * \param[in] len length of data to be write
- *
- * \return bytes wrote to obj
- */
-int uffs_WriteObject(uffs_Object *obj, const void *data, int len)
-{
-	uffs_Device *dev = obj->dev;
-	TreeNode *fnode = NULL;
-	int remain;
-	u32 pos;
-	int wrote = 0;
-
-	if (obj == NULL) 
-		return 0;
-
-	if (obj->dev == NULL || obj->open_succ != U_TRUE) {
-		obj->err = UEBADF;
-		return 0;
-	}
-
-	if (obj->type == UFFS_TYPE_DIR) {
-		uffs_Perror(UFFS_MSG_NOISY, "Can't write to an dir object!");
-		obj->err = UEACCES;
-		return 0;
-	}
-
-	if (obj->oflag == UO_RDONLY) {
-		obj->err = UEACCES;  // can't write to 'read only' mode opened file
-		return 0;
-	}
-
-	fnode = obj->node;
-
-	uffs_ObjectDevLock(obj);
-
-	if (obj->oflag & UO_APPEND)
-		obj->pos = fnode->u.file.len;
-	else {
-		if (obj->pos > fnode->u.file.len) {
-			// current pos pass over the end of file, need to fill the gap with '\0'
-			pos = obj->pos;	// save desired pos
-			obj->pos = fnode->u.file.len; // filling gap from the end of the file.
-			remain = do_WriteObject(obj, NULL, pos - fnode->u.file.len);  // Write filling bytes. Note: the filling data does not count as 'wrote' in this write operation.
-			obj->pos = pos - remain;
-			if (remain > 0)	// fail to fill the gap ? stop.
-				goto ext;
-		}
-	}
-
-	remain = do_WriteObject(obj, data, len);
-	wrote = len - remain;
-	obj->pos += wrote;
-
-ext:
-	if (HAVE_BADBLOCK(dev))
-		uffs_BadBlockRecover(dev);
-
-	uffs_ObjectDevUnLock(obj);
-
-	uffs_Assert(fnode == obj->node, "obj->node change!\n");
-
-	return wrote;
-}
-
-/**
- * read data from obj
- *
- * \param[in] obj uffs object
- * \param[out] data output data buffer
- * \param[in] len required length of data to be read from object->pos
- *
- * \return return bytes of data have been read
- */
-int uffs_ReadObject(uffs_Object *obj, void *data, int len)
-{
-	uffs_Device *dev = obj->dev;
-	TreeNode *fnode = NULL;
-	u32 remain = len;
-	u16 fdn;
-	u32 read_start;
-	TreeNode *dnode;
-	u32 size;
-	uffs_Buf *buf;
-	u32 blockOfs;
-	u16 page_id;
-	u8 type;
-	u32 pageOfs;
-
-	if (obj == NULL)
-		return 0;
-
-	fnode = obj->node;
-
-	if (obj->dev == NULL || obj->open_succ == U_FALSE) {
-		obj->err = UEBADF;
-		return 0;
-	}
-
-	if (obj->type == UFFS_TYPE_DIR) {
-		uffs_Perror(UFFS_MSG_NOISY, "Can't read data from a dir object!");
-		obj->err = UEBADF;
-		return 0;
-	}
-
-	if (obj->pos > fnode->u.file.len) {
-		return 0; //can't read file out of range
-	}
-
-	if (obj->oflag & UO_WRONLY) {
-		obj->err = UEACCES;
-		return 0;
-	}
-
-	uffs_ObjectDevLock(obj);
-
-	while (remain > 0) {
-		read_start = obj->pos + len - remain;
-		if (read_start >= fnode->u.file.len) {
-			//uffs_Perror(UFFS_MSG_NOISY, "read point out of file ?");
-			break;
-		}
-
-		fdn = GetFdnByOfs(obj, read_start);
-		if (fdn == 0) {
-			dnode = obj->node;
-			type = UFFS_TYPE_FILE;
-		}
-		else {
-			type = UFFS_TYPE_DATA;
-			dnode = uffs_TreeFindDataNode(dev, fnode->u.file.serial, fdn);
-			if (dnode == NULL) {
-				uffs_Perror(UFFS_MSG_SERIOUS, "can't get data node in entry!");
-				obj->err = UEUNKNOWN_ERR;
-				break;
-			}
-		}
-
-		blockOfs = GetStartOfDataBlock(obj, fdn);
-		page_id = (read_start - blockOfs) / dev->com.pg_data_size;
-
-		if (fdn == 0) {
-			/**
-			 * fdn == 0: this means that the reading is start from the first block,
-			 * since the page 0 is for file attr, so we move to the next page ID.
-			 */
-			page_id++;
-		}
-
-		buf = uffs_BufGetEx(dev, type, dnode, (u16)page_id, obj->oflag);
-		if (buf == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "can't get buffer when read obj.");
-			obj->err = UEIOERR;
-			break;
-		}
-
-		pageOfs = read_start % dev->com.pg_data_size;
-		if (pageOfs >= buf->data_len) {
-			//uffs_Perror(UFFS_MSG_NOISY, "read data out of page range ?");
-			uffs_BufPut(dev, buf);
-			break;
-		}
-		size = (remain + pageOfs > buf->data_len ? buf->data_len - pageOfs : remain);
-
-		uffs_BufRead(dev, buf, (u8 *)data + len - remain, pageOfs, size);
-		uffs_BufPut(dev, buf);
-
-		remain -= size;
-	}
-
-	obj->pos += (len - remain);
-
-	if (HAVE_BADBLOCK(dev)) 
-		uffs_BadBlockRecover(dev);
-
-	uffs_ObjectDevUnLock(obj);
-
-	uffs_Assert(fnode == obj->node, "obj->node change!\n");
-
-	return len - remain;
-}
-
-/**
- * move the file pointer
- *
- * \param[in] obj uffs object
- * \param[in] offset offset from origin
- * \param[in] origin the origin position, one of:
- *				#USEEK_CUR, #USEEK_SET or #USEEK_END
- *
- * \return the new file pointer position if success,
- *			or -1 if the new position would be negative.
- */
-long uffs_SeekObject(uffs_Object *obj, long offset, int origin)
-{
-	if (obj->type == UFFS_TYPE_DIR) {
-		uffs_Perror(UFFS_MSG_NOISY, "Can't seek a dir object!");
-		obj->err = UEACCES;
-	}
-	else {
-		uffs_ObjectDevLock(obj);
-		switch (origin) {
-			case USEEK_CUR:
-				if ((long)obj->pos + offset < 0) {
-					obj->err = UEINVAL;
-				}
-				else {
-					obj->pos += offset;
-				}
-				break;
-			case USEEK_SET:
-				if (offset < 0) {
-					obj->err = UEINVAL;
-				}
-				else {
-					obj->pos = offset;
-				}
-				break;
-			case USEEK_END:
-				if ((long)obj->node->u.file.len + offset < 0) {
-					obj->err = UEINVAL;
-				}
-				else {
-					obj->pos = obj->node->u.file.len + offset;
-				}
-				break;
-		}
-		uffs_ObjectDevUnLock(obj);
-	}
-
-	return (obj->err == UENOERR ? (long)obj->pos : -1);
-}
-
-/**
- * get current file pointer
- *
- * \param[in] obj uffs object
- *
- * \return return the file pointer position if the obj is valid,
- *	 return -1 if obj is invalid.
- */
-int uffs_GetCurOffset(uffs_Object *obj)
-{
-	if (obj) {
-		if (obj->dev && obj->open_succ == U_TRUE)
-			return obj->pos;
-	}
-	return -1;
-}
-
-/**
- * check whether the file pointer is at the end of file
- *
- * \param[in] obj uffs object
- *
- * \return return 1 if file pointer is at the end of file,
- *	 return -1 if error occur, else return 0.
- */
-int uffs_EndOfFile(uffs_Object *obj)
-{
-	if (obj) {
-		if (obj->dev && obj->type == UFFS_TYPE_FILE && obj->open_succ == U_TRUE) {
-			if (obj->pos >= obj->node->u.file.len) {
-				return 1;
-			}
-			else {
-				return 0;
-			}
-		}
-	}
-
-	return -1;
-}
-
-//
-// To trancate the file, this is the last block to be trancated.
-// We need to discard one or more pages within this block, hence requires 'block recover'.
-//
-static URET do_TruncateInternalWithBlockRecover(uffs_Object *obj,
-												u16 fdn, u32 remain, RunOptionE run_opt)
-{
-	uffs_Device *dev = obj->dev;
-	TreeNode *fnode = obj->node;
-	u16 page_id, max_page_id;
-	TreeNode *node;
-	uffs_Buf *buf = NULL;
-	u8 type;
-	u32 block_start;
-	u16 parent, serial;
-	int slot;
-	uffs_BlockInfo *bc = NULL;
-	int block = -1;
-
-	if (fdn == 0) {
-		node = fnode;
-		type = UFFS_TYPE_FILE;
-		max_page_id = obj->head_pages;
-		block_start = 0;
-		parent = node->u.file.parent;
-		serial = node->u.file.serial;
-		block = node->u.file.block;
-	}
-	else {
-		node = uffs_TreeFindDataNode(dev, fnode->u.file.serial, fdn);
-		if (node == NULL) {
-			obj->err = UEIOERR;
-			uffs_Perror(UFFS_MSG_SERIOUS,
-						"can't find data node when truncate obj");
-			goto ext;
-		}
-		block = node->u.data.block;
-		type = UFFS_TYPE_DATA;
-		max_page_id = dev->attr->pages_per_block - 1;
-		block_start = obj->head_pages * dev->com.pg_data_size +
-						(fdn - 1) * dev->com.pg_data_size *
-						dev->attr->pages_per_block;
-		parent = node->u.data.parent;
-		serial = node->u.data.serial;
-	}
-
-	if (run_opt == eDRY_RUN) {
-		// checking the buffer. this is the main reason why we need the 'dry run' mode.
-		for (page_id = 0; page_id <= max_page_id; page_id++) {
-			buf = uffs_BufFind(dev, parent, serial, page_id);
-			if (buf) {
-				//!< ok, the buffer was loaded before ...
-				if (uffs_BufIsFree(buf) == U_FALSE) {
-					obj->err = UEEXIST;
-					break;	//!< and someone is still holding the buffer,
-							//   can't truncate it !!!
-				}
-			}
-		}
-		buf = NULL;
-		goto ext;
-	}
-	
-	// find the last page *after* truncate
-	for (page_id = (fdn == 0 ? 1 : 0); page_id <= max_page_id; page_id++) {
-		if (block_start + (page_id + 1) * dev->com.pg_data_size >= remain)
-			break;
-	}
-
-	if (!uffs_Assert(page_id <= max_page_id, "fdn = %d, block_start = %d, remain = %d\n", fdn, block_start, remain)) {
-		obj->err = UEUNKNOWN_ERR;
-		goto ext;
-	}
-
-	// flush buffer before performing block recovery
-	uffs_BufFlushGroup(dev, parent, serial);
-
-	// load the last page
-	buf = uffs_BufGetEx(dev, type, node, page_id, obj->oflag);
-	if (buf == NULL) {
-		obj->err = UENOMEM;
-		uffs_Perror(UFFS_MSG_SERIOUS, "Can't get buf");
-		goto ext;
-	}
-
-	uffs_BufWrite(dev, buf, NULL, 0, 0); // just make this buf dirty
-
-	// lock the group
-	slot = uffs_BufFindGroupSlot(dev, parent, serial);
-	uffs_BufLockGroup(dev, slot);
-
-	if (remain == 0) // remain == 0: means discard all data in this block.
-		buf->data_len = 0;
-	else {
-		remain = (remain % dev->com.pg_data_size);
-		// remain == 0: means that we need to keep all data in this page.
-		buf->data_len = (remain == 0 ? dev->com.pg_data_size : remain);
-	}
-
-	/* mark this buf as UFFS_BUF_EXT_MARK_TRUNC_TAIL, when flushing
-		dirty buffers, UFFS will not do page recover for pages after
-		this buf page id (because this file is ended at this page) */
-	buf->ext_mark |= UFFS_BUF_EXT_MARK_TRUNC_TAIL;
-
-	uffs_BufPut(dev, buf);
-
-	// invalidate the rest page buf
-	page_id++;
-	for (; page_id <= max_page_id; page_id++) {
-		buf = uffs_BufFind(dev, parent, serial, page_id);
-		if (buf)
-			uffs_BufMarkEmpty(dev, buf);
-	}
-
-	// flush dirty buffer immediately, forcing block recovery.
-	uffs_BufFlushGroupEx(dev, parent, serial, U_TRUE);
-
-	// unlock the group
-	uffs_BufUnLockGroup(dev, slot);
-
-	// Invalidate block info cache for the 'old' block
-	bc = uffs_BlockInfoGet(dev, block);
-	if (bc) {
-		uffs_BlockInfoExpire(dev, bc, UFFS_ALL_PAGES);
-		uffs_BlockInfoPut(dev, bc);
-	}
-
-ext:
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-}
-
-/**
- * truncate an object
- *
- * \param[in] obj object to be truncated
- * \param[in] remain data bytes to be remained in this object
- *
- * \return U_SUCC or U_FAIL (error code in obj->err)
- */
-URET uffs_TruncateObject(uffs_Object *obj, u32 remain)
-{
-	uffs_ObjectDevLock(obj);
-	if (do_TruncateObject(obj, remain, eDRY_RUN) == U_SUCC)
-		do_TruncateObject(obj, remain, eREAL_RUN);
-	uffs_ObjectDevUnLock(obj);
-
-	uffs_FlushObject(obj);
-
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-}
-
-/** truncate obj without lock device */
-static URET do_TruncateObject(uffs_Object *obj, u32 remain, RunOptionE run_opt)
-{
-	uffs_Device *dev = obj->dev;
-	TreeNode *fnode = obj->node;
-	u16 fdn;
-	u32 flen;
-	u32 block_start;
-	TreeNode *node;
-	uffs_BlockInfo *bc;
-	uffs_Buf *buf;
-	u16 page;
-	int pos;
-
-	pos = obj->pos;   // save current file position
-
-	if (obj->dev == NULL || obj->open_succ == U_FALSE || fnode == NULL) {
-		obj->err = UEBADF;
-		goto ext;
-	}
-
-	/* can't truncate a dir */
-	/* TODO: delete files under dir ? */
-	if (obj->type == UFFS_TYPE_DIR) {
-		obj->err = UEEXIST;
-		goto ext;
-	}
-
-	if (remain >= fnode->u.file.len) {
-		goto ext;	//!< nothing to do ... 
-	}
-
-	flen = fnode->u.file.len;
-
-	if (flen < remain) {
-		// file is shorter than 'reamin', fill the gap with '\0'
-		if (run_opt == eREAL_RUN) {
-			obj->pos = flen;  // move file pointer to the end
-			if (do_WriteObject(obj, NULL, remain - flen) > 0) {	// fill '\0' ...
-				uffs_Perror(UFFS_MSG_SERIOUS, "Write object not finished. expect %d but only %d wrote.",
-												remain - flen, fnode->u.file.len - flen);
-				obj->err = UEIOERR;   // likely be an I/O error.
-			}
-			flen = obj->node->u.file.len;
-		}
-	}
-	else {
-		while (flen > remain) {
-			fdn = GetFdnByOfs(obj, flen - 1);
-
-			//uffs_BufFlushGroup(dev, obj->serial, fdn);	//!< flush the buffer
-
-			block_start = GetStartOfDataBlock(obj, fdn);
-			if (remain <= block_start && fdn > 0) {
-				node = uffs_TreeFindDataNode(dev, obj->serial, fdn);
-				if (node == NULL) {
-					uffs_Perror(UFFS_MSG_SERIOUS,
-								"can't find data node when trancate obj.");
-					obj->err = UEIOERR;
-					goto ext;
-				}
-				bc = uffs_BlockInfoGet(dev, node->u.data.block);
-				if (bc == NULL) {
-					uffs_Perror(UFFS_MSG_SERIOUS,
-								"can't get block info when trancate obj.");
-					obj->err = UEIOERR;
-					goto ext;
-				}
-
-				for (page = 0; page < dev->attr->pages_per_block; page++) {
-					buf = uffs_BufFind(dev, fnode->u.file.serial, fdn, page);
-					if (buf) {
-						//!< ok, the buffer was loaded before ...
-						if (uffs_BufIsFree(buf) == U_FALSE) {
-							uffs_BlockInfoPut(dev, bc);
-							goto ext;	//!< and someone is still holding the buffer,
-										//   can't truncate it !!!
-						}
-						else if (run_opt == eREAL_RUN)
-							uffs_BufMarkEmpty(dev, buf);	//!< discard the buffer
-					}
-				}
-
-				if (run_opt == eREAL_RUN) {
-					uffs_BreakFromEntry(dev, UFFS_TYPE_DATA, node);
-					uffs_FlashEraseBlock(dev, bc->block);
-					node->u.list.block = bc->block;
-					if (HAVE_BADBLOCK(dev))
-						uffs_BadBlockProcess(dev, node);
-					else
-						uffs_TreeInsertToErasedListTail(dev, node);
-
-					fnode->u.file.len = block_start;
-				}
-
-				flen = block_start;
-				uffs_BlockInfoPut(dev, bc);
-			}
-			else {
-				if (do_TruncateInternalWithBlockRecover(obj, fdn,
-														remain, run_opt) == U_SUCC) {
-					if (run_opt == eREAL_RUN)
-						fnode->u.file.len = remain;
-					flen = remain;
-				}
-			}
-		}
-	}
-
-	if (HAVE_BADBLOCK(dev)) 
-		uffs_BadBlockRecover(dev);
-ext:
-	obj->pos = pos;  // keep file pointer offset not changed.
-
-	uffs_Assert(fnode == obj->node, "obj->node change!\n");
-
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-
-}
-
-/**
- * \brief check if there are anyone holding buf of this obj.
- *        If no one holding the buffers, expire the buffer.
- * \return
- *		0	: no one holding any buf of this obj
- *		>0	: the ref_count of buf which refer to this obj.
- */
-int _CheckObjBufRef(uffs_Object *obj)
-{
-	uffs_Device *dev = obj->dev;
-	uffs_Buf *buf;
-	TreeNode *node = obj->node;
-	u16 parent, serial, last_serial;
-
-	// check the DIR or FILE block
-	for (buf = uffs_BufFind(dev, obj->parent, obj->serial, UFFS_ALL_PAGES);
-		 buf != NULL;
-		 buf = uffs_BufFindFrom(dev, buf->next, obj->parent, obj->serial, UFFS_ALL_PAGES))
-	{
-		if (buf->ref_count > 0) {
-			// oops ...
-			uffs_Perror(UFFS_MSG_SERIOUS, "someone still hold buf parent = %d, serial = %d, ref_count",
-				obj->parent, obj->serial, buf->ref_count);
-
-			return buf->ref_count;
-		}
-		else {
-			buf->mark = UFFS_BUF_EMPTY;
-		}
-	}
-
-	if (buf == NULL || buf->ref_count == 0) {
-		// check the DATA block
-		if (obj->type == UFFS_TYPE_FILE && node->u.file.len > 0) {
-
-			parent = obj->serial;
-			last_serial = GetFdnByOfs(obj, node->u.file.len - 1);
-			for (serial = 1; serial <= last_serial; serial++) {
-
-				for (buf = uffs_BufFind(dev, parent, serial, UFFS_ALL_PAGES);
-					 buf != NULL;
-					 buf = uffs_BufFindFrom(dev, buf->next, parent, serial, UFFS_ALL_PAGES))
-				{
-					if (buf->ref_count != 0) {
-						// oops ...
-						uffs_Perror(UFFS_MSG_SERIOUS, "someone still hold buf parent = %d, serial = %d, ref_count",
-							parent, serial, buf->ref_count);
-
-						return buf->ref_count;
-					}
-					else {
-						buf->mark = UFFS_BUF_EMPTY;
-					}
-				}
-			}
-		}
-	}
-
-	return 0;
-}
-
-
-
-/**
- * \brief delete uffs object
- *
- * \param[in] name full name of object
- * \param[out] err return error code
- *
- * \return U_SUCC if object is deleted successfully. 
- *	return U_FAIL if error happen, error code is set to *err.
- */
-URET uffs_DeleteObject(const char * name, int *err)
-{
-	uffs_Object *obj, *work;
-	TreeNode *node, *d_node;
-	uffs_Device *dev = NULL;
-	u16 block;
-	u16 serial, parent, last_serial;
-	UBOOL bad = U_FALSE;
-	URET ret = U_FAIL;
-
-	obj = uffs_GetObject();
-	if (obj == NULL) {
-		if (err)
-			*err = UEMFILE;
-		goto ext_unlock;
-	}
-
-	if (uffs_OpenObject(obj, name, UO_RDWR|UO_DIR) == U_FAIL) {
-		if (uffs_OpenObject(obj, name, UO_RDWR) == U_FAIL) {
-			if (err)
-				*err = UENOENT;
-			goto ext_unlock;
-		}
-	}
-
-	dev = obj->dev;
-
-	// working throught object pool see if the object is opened ...
-	uffs_ObjectDevLock(obj);
-	work = NULL;
-	while ((work = (uffs_Object *)uffs_PoolFindNextAllocated(&_object_pool, work)) != NULL) {
-		if (work != obj && 
-			work->dev &&
-			work->dev == obj->dev &&
-			work->node &&
-			work->node == obj->node) {
-			// this object is opened, can't delete it.
-			if (err)
-				*err = UEACCES;
-			goto ext_lock;
-		}
-	}
-
-	if (obj->type == UFFS_TYPE_DIR) {
-		// if the dir is not empty, can't delete it.
-		node = uffs_TreeFindDirNodeWithParent(dev, obj->serial);
-		if (node != NULL) {
-			if (err)
-				*err = UEACCES;
-			goto ext_lock;  //have sub dirs ?
-		}
-
-		node = uffs_TreeFindFileNodeWithParent(dev, obj->serial);
-		if (node != NULL) {
-			if (err)
-				*err = UEACCES;
-			goto ext_lock;  //have sub files ?
-		}
-	}
-
-	// before erase the block, we need to take care of the buffer ...
-	uffs_BufFlushAll(dev);
-
-	if (_CheckObjBufRef(obj) > 0) {
-		if (err)
-			*err = UEACCES;
-		goto ext_lock;
-	}
-
-	node = obj->node;
-
-	// ok, now we are safe to erase DIR/FILE block :-)
-	block = GET_BLOCK_FROM_NODE(obj);
-	parent = obj->serial;
-	last_serial = (obj->type == UFFS_TYPE_FILE && node->u.file.len > 0 ? GetFdnByOfs(obj, node->u.file.len - 1) : 0);
-
-	uffs_BreakFromEntry(dev, obj->type, node);
-	uffs_FlashEraseBlock(dev, block);
-	node->u.list.block = block;
-	node->u.list.u.serial = obj->serial;
-
-	// From now on, the object is gone physically,
-	// but we need to 'suspend' this node so that no one will re-use
-	// the serial number during deleting the reset part of object.
-
-	if (HAVE_BADBLOCK(dev)) {
-		uffs_BadBlockProcessSuspend(dev, node);
-		bad = U_TRUE;  // will be put into 'bad' list later
-	}
-	else {
-		uffs_TreeSuspendAdd(dev, node);
-		bad = U_FALSE;	// will be put into erased list later
-	}
-
-	// now erase DATA blocks
-	if (obj->type == UFFS_TYPE_FILE && last_serial > 0) {
-		for (serial = 1; serial <= last_serial; serial++) {
-
-			uffs_ObjectDevUnLock(obj);
-			; // yield CPU to improve responsive when deleting large file.
-			uffs_ObjectDevLock(obj);
-
-			d_node = uffs_TreeFindDataNode(dev, parent, serial);
-			if (uffs_Assert(d_node != NULL, "Can't find DATA node parent = %d, serial = %d\n", parent, serial)) {
-				uffs_BreakFromEntry(dev, UFFS_TYPE_DATA, d_node);
-				block = d_node->u.data.block;
-				uffs_FlashEraseBlock(dev, block);
-				d_node->u.list.block = block;
-				if (HAVE_BADBLOCK(dev))
-					uffs_BadBlockProcess(dev, d_node);
-				else
-					uffs_TreeInsertToErasedListTail(dev, d_node);
-			}
-		}
-	}
-	
-	// now process the suspend node
-	uffs_TreeRemoveSuspendNode(dev, node);
-	if (bad)
-		uffs_TreeInsertToBadBlockList(dev, node);
-	else
-		uffs_TreeInsertToErasedListTail(dev, node);
-
-	ret = U_SUCC;
-
-ext_lock:
-	uffs_ObjectDevUnLock(obj);
-ext_unlock:
-	do_ReleaseObjectResource(obj);
-
-	uffs_PutObject(obj);
-
-	return ret;
-}
-
-/**
- * Remove object under a new parent, change object name.
- *
- * \param[in|out] obj
- * \param[in] new_parent new parent's serial number
- * \param[in] new_name new name of the object.
- *			 if new_name == NULL, keep the old name.
- * \param[in] name_len new name length.
- *
- * \return U_SUCC or U_FAIL (obj->err for the reason)
- */
-URET uffs_MoveObjectEx(uffs_Object *obj,
-					   int new_parent, const char *new_name, int name_len)
-{
-	uffs_Buf *buf;
-	uffs_FileInfo fi;
-	uffs_Device *dev = obj->dev;
-	TreeNode *node = obj->node;
-
-	if (dev == NULL || node == NULL || obj->open_succ != U_TRUE) {
-		obj->err = UEBADF;
-		goto ext;
-	}
-
-	uffs_ObjectDevLock(obj);
-
-	obj->parent = new_parent;
-
-	if (name_len > 0) {
-
-		buf = uffs_BufGetEx(dev, obj->type, node, 0, obj->oflag);
-		if (buf == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "can't get buf when rename!");
-			obj->err = UEIOERR;
-			goto ext_1;
-		}
-
-		memcpy(&fi, buf->data, sizeof(uffs_FileInfo));
-
-		if (new_name[name_len-1] == '/')
-			name_len--;
-
-		memcpy(fi.name, new_name, name_len);
-		fi.name[name_len] = 0;
-		fi.name_len = name_len;
-		fi.last_modify = uffs_GetCurDateTime();
-
-		buf->parent = new_parent;	// !! need to manually change the 'parent' !!
-		uffs_BufWrite(dev, buf, &fi, 0, sizeof(uffs_FileInfo));
-		uffs_BufPut(dev, buf);
-
-		// !! force a block recover so that all old tag will be expired !!
-		// This is important so we only need to check
-		// the first spare when mount UFFS :)
-		uffs_BufFlushGroupEx(dev, obj->parent, obj->serial, U_TRUE);
-
-		obj->name = new_name;
-		obj->name_len = name_len;
-		obj->sum = uffs_MakeSum16(fi.name, fi.name_len);
-	}
-
-	//update the check sum and new parent of tree node
-	if (obj->type == UFFS_TYPE_DIR) {
-		obj->node->u.dir.checksum = obj->sum;
-		obj->node->u.dir.parent = new_parent;
-	}
-	else {
-		obj->node->u.file.checksum = obj->sum;
-		obj->node->u.file.parent = new_parent;
-	}
-
-ext_1:
-	uffs_ObjectDevUnLock(obj);
-ext:
-
-	return (obj->err == UENOERR ? U_SUCC : U_FAIL);
-}
-
-/**
- * \brief rename(move) file or dir.
- * \return U_SUCC if success, otherwise return U_FAIL and set error code to *err.
- * \note rename/move file between different mount point is not allowed.
- */
-URET uffs_RenameObject(const char *old_name, const char *new_name, int *err)
-{
-	uffs_Object *obj = NULL, *new_obj = NULL;
-	URET ret = U_FAIL;
-	int oflag;
-
-	obj = uffs_GetObject();
-	new_obj = uffs_GetObject();
-
-	if (obj == NULL || new_obj == NULL) {
-		if (err) 
-			*err = UEINVAL;
-		goto ext;
-	}
-
-	oflag = UO_RDONLY;
-	if (uffs_OpenObject(new_obj, new_name, oflag) == U_SUCC) {
-		uffs_CloseObject(new_obj);
-		uffs_Perror(UFFS_MSG_NOISY, "new object already exist!");
-		if (err)
-			*err = UEEXIST;
-		goto ext;
-	}
-	oflag |= UO_DIR;
-	if (uffs_OpenObject(new_obj, new_name, oflag) == U_SUCC) {
-		uffs_CloseObject(new_obj);
-		uffs_Perror(UFFS_MSG_NOISY, "new object already exist!");
-		if (err)
-			*err = UEEXIST;
-		goto ext;
-	}
-
-	if (uffs_ParseObject(new_obj, new_name) != U_SUCC) {
-		uffs_Perror(UFFS_MSG_NOISY, "parse new name fail !");
-		if (err)
-			*err = UENOENT;
-		goto ext;
-	}
-
-	if (new_obj->name_len == 0) {
-		uffs_Perror(UFFS_MSG_NOISY, "invalid new name");
-		if (err)
-			*err = UEINVAL;
-		goto ext;
-	}
-
-	oflag = UO_RDONLY;
-	if (uffs_OpenObject(obj, old_name, oflag) != U_SUCC) {
-		oflag |= UO_DIR;
-		if (uffs_OpenObject(obj, old_name, oflag) != U_SUCC) {
-			uffs_Perror(UFFS_MSG_NOISY, "Can't open old object !");
-			if (err)
-				*err = UEACCES;
-			goto ext;
-		}
-	}
-
-	if (obj->dev != new_obj->dev) {
-		uffs_Perror(UFFS_MSG_NOISY,
-					"Can't move object between different mount point");
-		if (err)
-			*err = UEACCES;
-	}
-	else {
-		ret = uffs_MoveObjectEx(obj, new_obj->parent,
-									new_obj->name, new_obj->name_len);
-		if (ret == U_FAIL && err)
-			*err = obj->err;
-	}
-
-	uffs_CloseObject(obj);
-
-ext:
-	if (obj) uffs_PutObject(obj);
-	if (new_obj) {
-		do_ReleaseObjectResource(new_obj);
-		uffs_PutObject(new_obj);
-	}
-
-	return ret;
-}
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_init.c b/components/dfs/filesystems/uffs/src/uffs/uffs_init.c
deleted file mode 100644
index bc0a5ca893..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_init.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_init.c
- * \brief initialize uffs file system device
- * \author Ricky Zheng, created 12th May, 2005
- */
-
-#include "uffs_config.h"
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_tree.h"
-#include "uffs/uffs_fs.h"
-#include "uffs/uffs_badblock.h"
-#include "uffs/uffs_utils.h"
-#include <string.h>
-
-#define PFX "init: "
-
-static URET uffs_InitDeviceConfig(uffs_Device *dev)
-{
-    if (dev->cfg.dirty_groups == 0)
-        dev->cfg.dirty_groups = MAX_DIRTY_BUF_GROUPS;
-
-	if (!uffs_Assert(dev->cfg.dirty_groups >= 1 && dev->cfg.dirty_groups <= MAX_DIRTY_BUF_GROUPS,
-						"invalid config: dirty_groups = %d\n", dev->cfg.dirty_groups))
-		return U_FAIL;
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR > 0
-	dev->cfg.bc_caches = MAX_CACHED_BLOCK_INFO;
-	dev->cfg.page_buffers = MAX_PAGE_BUFFERS;
-	dev->cfg.dirty_pages = MAX_DIRTY_PAGES_IN_A_BLOCK;
-	dev->cfg.reserved_free_blocks = MINIMUN_ERASED_BLOCK;
-#else
-	if (dev->cfg.bc_caches == 0)
-		dev->cfg.bc_caches = MAX_CACHED_BLOCK_INFO;
-	if (dev->cfg.page_buffers == 0)
-		dev->cfg.page_buffers = MAX_PAGE_BUFFERS;
-	if (dev->cfg.dirty_pages == 0)
-		dev->cfg.dirty_pages = MAX_DIRTY_PAGES_IN_A_BLOCK;
-	if (dev->cfg.reserved_free_blocks == 0)
-		dev->cfg.reserved_free_blocks = MINIMUN_ERASED_BLOCK;
-
-	if (!uffs_Assert(dev->cfg.page_buffers - CLONE_BUFFERS_THRESHOLD >= 3, "invalid config: page_buffers = %d\n", dev->cfg.page_buffers))
-		return U_FAIL;
-
-#endif
-	return U_SUCC;
-}
-
-URET uffs_InitDevice(uffs_Device *dev)
-{
-	URET ret;
-
-	ret = uffs_InitDeviceConfig(dev);
-	if (ret != U_SUCC)
-		return U_FAIL;
-
-	if (dev->mem.init) {
-		if (dev->mem.init(dev) != U_SUCC) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "Init memory allocator fail.");
-			return U_FAIL;
-		}
-	}
-
-	memset(&(dev->st), 0, sizeof(uffs_FlashStat));
-
-	uffs_DeviceInitLock(dev);
-	uffs_BadBlockInit(dev);
-
-
-	if (uffs_FlashInterfaceInit(dev) != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "Can't initialize flash interface !");
-		goto fail;
-	}
-
-	uffs_Perror(UFFS_MSG_NOISY, "init page buf");
-	ret = uffs_BufInit(dev, dev->cfg.page_buffers, dev->cfg.dirty_pages);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_DEAD, "Initialize page buffers fail");
-		goto fail;
-	}
-	uffs_Perror(UFFS_MSG_NOISY, "init block info cache");
-	ret = uffs_BlockInfoInitCache(dev, dev->cfg.bc_caches);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_DEAD, "Initialize block info fail");
-		goto fail;
-	}
-
-	ret = uffs_TreeInit(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "fail to init tree buffers");
-		goto fail;
-	}
-
-	ret = uffs_BuildTree(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "fail to build tree");
-		goto fail;
-	}
-
-	return U_SUCC;
-
-fail:
-	uffs_DeviceReleaseLock(dev);
-
-	return U_FAIL;
-}
-
-URET uffs_ReleaseDevice(uffs_Device *dev)
-{
-	URET ret;
-
-	ret = uffs_BlockInfoReleaseCache(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS,  "fail to release block info.");
-		goto ext;
-	}
-
-	ret = uffs_BufReleaseAll(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS,  "fail to release page buffers");
-		goto ext;
-	}
-
-	ret = uffs_TreeRelease(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "fail to release tree buffers!");
-		goto ext;
-	}
-
-	ret = uffs_FlashInterfaceRelease(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "fail to release tree buffers!");
-		goto ext;
-	}
-
-	if (dev->mem.release)
-		ret = dev->mem.release(dev);
-
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "fail to release memory allocator!");
-	}
-
-	uffs_DeviceReleaseLock(dev);
-
-ext:
-	return ret;
-
-}
-
-URET uffs_InitFileSystemObjects(void)
-{
-	if (uffs_InitObjectBuf() == U_SUCC) {
-		if (uffs_DirEntryBufInit() == U_SUCC) {
-			uffs_InitGlobalFsLock();
-			return U_SUCC;
-		}
-	}
-
-	return U_FAIL;
-}
-
-URET uffs_ReleaseFileSystemObjects(void)
-{
-	if (uffs_ReleaseObjectBuf() == U_SUCC) {
-		if (uffs_DirEntryBufRelease() == U_SUCC) {
-			uffs_ReleaseGlobalFsLock();
-			return U_SUCC;
-		}
-	}
-
-	return U_FAIL;
-}
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_mem.c b/components/dfs/filesystems/uffs/src/uffs/uffs_mem.c
deleted file mode 100644
index 9763cd7c43..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_mem.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_mem.c
- * \brief uffs static memory allocator
- * \author Ricky Zheng, created 23th Feb, 2007
- */
-
-#include <string.h>
-#include "uffs_config.h"
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_mem.h"
-
-#define PFX "mem : "
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR > 0
-static void * static_malloc(struct uffs_DeviceSt *dev, unsigned int size)
-{
-	struct uffs_memAllocatorSt *mem = &dev->mem;
-	void *p = NULL;
-
-	size += (size % sizeof(long) ? sizeof(long) - (size % sizeof(long)) : 0);
-
-	if (mem->buf_size - mem->pos < (int)size) {
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"Memory alloc failed! (alloc %d, free %d)",
-					size, mem->buf_size - mem->pos);
-	}
-	else {
-		p = mem->buf_start + mem->pos;
-		mem->pos += size;
-		uffs_Perror(UFFS_MSG_NOISY,
-					"0x%p: Allocated %d, free %d",
-					p, size, mem->buf_size - mem->pos);
-	}
-
-	return p;
-}
-
-void uffs_MemSetupStaticAllocator(uffs_MemAllocator *allocator,
-								  void *pool, int size)
-{
-	allocator->buf_start = (char *)pool;
-	allocator->buf_size = size;
-	allocator->pos = 0;
-	allocator->malloc = static_malloc;
-	allocator->free = NULL;  //never free memory for static memory allocator
-
-	uffs_Perror(UFFS_MSG_NOISY,
-				"System static memory: %d bytes", allocator->buf_size);
-	
-}
-
-#endif
-
-
-
-
-
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_mtb.c b/components/dfs/filesystems/uffs/src/uffs/uffs_mtb.c
deleted file mode 100644
index ca7f197249..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_mtb.c
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_mtb.c
- * \brief mount table operations
- * \author Ricky Zheng, created 11th July, 2009
- */
-#include "uffs_config.h"
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_tree.h"
-#include "uffs/uffs_mtb.h"
-#include "uffs/uffs_fd.h"
-#include "uffs/uffs_utils.h"
-#include "uffs/uffs_fs.h"
-#include <string.h>
-
-#define PFX "mtb : "
-
-static struct uffs_MountTableEntrySt *m_head = NULL;		// list of mounted entries
-static struct uffs_MountTableEntrySt *m_free_head = NULL;	// list of unmounted entries
-
-/** Return mounted entries header */
-uffs_MountTable * uffs_MtbGetMounted(void)
-{
-	return m_head;
-}
-
-/** Return unmounted entries header */
-uffs_MountTable * uffs_MtbGetUnMounted(void)
-{
-	return m_free_head;
-}
-
-/**
- * \brief Register mount table
- * \param mtb mount table entry
- * \return 0 succ
- *         -1 failed (e.g. already registered and mounted)
- */
-int uffs_RegisterMountTable(uffs_MountTable *mtb)
-{
-	uffs_MountTable *work = NULL;
-	static int dev_num = 0;
-
-	if (mtb == NULL) 
-		return -1;
-
-	for (work = m_head; work; work = work->next) {
-		if (work == mtb)
-			return -1; // already mounted ?
-	}
-
-	for (work = m_free_head; work; work = work->next) {
-		if (work == mtb)
-			return 0; // already registered.
-	}
-
-	/* replace the free head */
-	if (m_free_head)
-		m_free_head->prev = mtb;
-	mtb->prev = NULL;
-	mtb->next = m_free_head;
-	m_free_head = mtb;
-	
-	mtb->dev->dev_num = ++dev_num;
-
-	return 0;
-}
-
-/**
- * \brief Remove mount entry from the table
- * \param mtb mount table entry
- * \return 0 removed succ
- *         -1 entry in used or not in the 'unmounted' list
- */
-int uffs_UnRegisterMountTable(uffs_MountTable *mtb)
-{
-	uffs_MountTable *work = NULL;
-
-	if (mtb == NULL)
-		return -1;
-
-	for (work = m_head; work; work = work->next) {
-		if (work == mtb)
-			return -1;	// in the mounted list ? busy, return
-	}
-
-	for (work = m_free_head; work; work = work->next) {
-		if (work == mtb) {
-			// found, remove it from the list
-			if (work->next)
-				work->next->prev = work->prev;
-			if (work->prev)
-				work->prev->next = work->next;
-			if (work == m_free_head)
-				m_free_head = work->next;
-
-			break;
-		}
-	}
-
-	return work ? 0 : -1;
-}
-
-static uffs_MountTable * uffs_GetMountTableByMountPoint(const char *mount, uffs_MountTable *head)
-{
-	uffs_MountTable *work = NULL;
-
-	for (work = head; work; work = work->next) {
-		if (strcmp(work->mount, mount) == 0)
-			break;
-	}	
-	return work;
-}
-
-/**
- * \brief mount partition
- * \param[in] mount partition mount point
- * \return 0 succ
- *         <0 fail
- *
- * \note use uffs_RegisterMountTable() register mount entry before you can mount it.
- *       mount point should ended with '/', e.g. '/sys/'
- */
-int uffs_Mount(const char *mount)
-{
-	uffs_MountTable *mtb;
-
-	if (uffs_GetMountTableByMountPoint(mount, m_head) != NULL) {
-		uffs_Perror(UFFS_MSG_NOISY,	"'%s' already mounted", mount);
-		return -1; // already mounted ?
-	}
-	
-	mtb = uffs_GetMountTableByMountPoint(mount, m_free_head);
-	if (mtb == NULL) {
-		uffs_Perror(UFFS_MSG_NOISY,	"'%s' not registered", mount);
-		return -1;	// not registered ?
-	}
-
-	uffs_Perror(UFFS_MSG_NOISY,
-				"init device for mount point %s ...",
-				mtb->mount);
-
-	mtb->dev->par.start = mtb->start_block;
-	if (mtb->end_block < 0) {
-		mtb->dev->par.end = 
-			mtb->dev->attr->total_blocks + mtb->end_block;
-	}
-	else {
-		mtb->dev->par.end = mtb->end_block;
-	}
-
-	if (mtb->dev->Init(mtb->dev) == U_FAIL) {
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"init device for mount point %s fail",
-					mtb->mount);
-		return -1;
-	}
-
-	uffs_Perror(UFFS_MSG_NOISY, "mount partiton: %d,%d",
-		mtb->dev->par.start, mtb->dev->par.end);
-
-	if (uffs_InitDevice(mtb->dev) != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "init device fail !");
-		return -1;
-	}
-
-	/* now break it from unmounted list */
-	if (mtb->prev)
-		mtb->prev->next = mtb->next;
-	if (mtb->next)
-		mtb->next->prev = mtb->prev;
-	if (m_free_head == mtb)
-		m_free_head = mtb->next;
-
-	/* link to mounted list */
-	mtb->prev = NULL;
-	mtb->next = m_head;
-	if (m_head)
-		m_head->prev = mtb;
-	m_head = mtb;
-
-	return 0;
-}
-
-/**
- * \brief unmount parttion
- * \param[in] mount partition mount point
- * \return 0 succ
- *         <0 fail
- */
-int uffs_UnMount(const char *mount)
-{
-	uffs_MountTable *mtb = uffs_GetMountTableByMountPoint(mount, m_head);
-
-	if (mtb == NULL) {
-		uffs_Perror(UFFS_MSG_NOISY,	"'%s' not mounted ?", mount);
-		return -1;  // not mounted ?
-	}
-
-	if (uffs_GetMountTableByMountPoint(mount, m_free_head) != NULL) {
-		uffs_Perror(UFFS_MSG_NOISY,	"'%s' already unmounted ?", mount);
-		return -1;  // already unmounted ?
-	}
-
-	if (mtb->dev->ref_count != 0) {
-		uffs_Perror(UFFS_MSG_NORMAL, "Can't unmount '%s' - busy", mount);
-		return -1;
-	}
-
-	if (uffs_ReleaseDevice(mtb->dev) == U_FAIL) {
-		uffs_Perror(UFFS_MSG_NORMAL, "Can't release device for mount point '%s'", mount);
-		return -1;
-	}
-
-	mtb->dev->Release(mtb->dev);
-
-	// break from mounted list
-	if (mtb->prev)
-		mtb->prev->next = mtb->next;
-	if (mtb->next)
-		mtb->next->prev = mtb->prev;
-	if (mtb == m_head)
-		m_head = mtb->next;
-
-	// put to unmounted list
-	mtb->prev = NULL;
-	mtb->next = m_free_head;
-	if (m_free_head)
-		m_free_head->prev = mtb;
-	m_free_head = mtb;
-
-	return 0;
-}
-
-/**
- * find the matched mount point from a given full absolute path.
- *
- * \param[in] path full path
- * \return the length of mount point.
- */
-int uffs_GetMatchedMountPointSize(const char *path)
-{
-	int pos;
-	uffs_Device *dev;
-
-	if (path[0] != '/')
-		return 0;
-
-	pos = strlen(path);
-
-	while (pos > 0) {
-		if ((dev = uffs_GetDeviceFromMountPointEx(path, pos)) != NULL ) {
-			uffs_PutDevice(dev);
-			return pos;
-		}
-		else {
-			if (path[pos-1] == '/') 
-				pos--;
-			//back forward search the next '/'
-			for (; pos > 0 && path[pos-1] != '/'; pos--)
-				;
-		}
-	}
-
-	return pos;
-}
-
-/**
- * get device from mount point.
- *
- * \param[in] mount mount point name.
- * \return NULL if mount point is not found.
- */
-uffs_Device * uffs_GetDeviceFromMountPoint(const char *mount)
-{
-	uffs_MountTable *mtb = uffs_GetMountTableByMountPoint(mount, m_head);
-
-	if (mtb) {
-		mtb->dev->ref_count++;
-		return mtb->dev;
-	}
-
-	return NULL;
-}
-
-/**
- * get device from mount point.
- *
- * \param[in] mount mount point name.
- * \param[in] len mount point name length.
- * \return NULL if mount point is not found.
- */
-uffs_Device * uffs_GetDeviceFromMountPointEx(const char *mount, int len)
-{
-	uffs_MountTable *work = NULL;
-
-	for (work = m_head; work; work = work->next) {
-		if (strlen(work->mount) == len &&
-				strncmp(mount, work->mount, len) == 0) {
-			work->dev->ref_count++;
-			return work->dev;
-		}
-	}
-
-	return NULL;
-}
-
-
-/**
- * return mount point from device
- *
- * \param[in] dev uffs device
- * \return NULL if mount point is not found, 
- *		otherwise return mount point name in mount table.
- */
-const char * uffs_GetDeviceMountPoint(uffs_Device *dev)
-{
-	uffs_MountTable *work = NULL;
-
-	for (work = m_head; work; work = work->next) {
-		if (work->dev == dev) {
-			return work->mount;
-		}
-	}
-
-	return NULL;	
-}
-
-void uffs_PutDevice(uffs_Device *dev)
-{
-	dev->ref_count--;
-}
-
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_pool.c b/components/dfs/filesystems/uffs/src/uffs/uffs_pool.c
deleted file mode 100644
index 22adc53f30..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_pool.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_pool.c
- * \brief Fast fixed size memory pool management.
- * \author Ricky Zheng, Simon Kallweit
- */
-
-#include "uffs_config.h" 
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_pool.h"
-
-/*
-
-	usage:
-
-	#define BUF_SIZE	32
-	#define NUM_BUFS	1024
-
-	static int pool_mem[NUM_BUFS * BUF_SIZE / sizeof(int)];
-	static uffs_Pool pool;
-
-	uffs_PoolInit(&pool, pool_mem, sizeof(pool_mem), BUF_SIZE, NUM_BUFS);
-
-	void * p;
-	p = uffs_PoolGet(&pool);
-	...
-	uffs_PoolPut(p, &pool);
-
-	notice:
-
-	uffs_PoolInit will assert when NUM_BUFS is not at least 1, or BUF_SIZE is
-	not	aligned to the platforms pointer size.
-
-*/
-
-
-/**
- * \brief Initializes the memory pool.
- * \param[in] pool memory pool
- * \param[in] mem pool memory
- * \param[in] mem_size size of pool memory
- * \param[in] buf_size size of a single buffer
- * \param[in] num_bufs number of buffers
- * \return Returns U_SUCC if successful.
- */
-URET uffs_PoolInit(uffs_Pool *pool,
-				   void *mem, u32 mem_size, u32 buf_size, u32 num_bufs)
-{
-	unsigned int i;
-	uffs_PoolEntry *e1, *e2;
-
-	if (!uffs_Assert(pool != NULL, "pool missing") ||
-		!uffs_Assert(mem != NULL, "pool memory missing") ||
-		!uffs_Assert(num_bufs > 0, "not enough buffers") ||
-		!uffs_Assert(buf_size % sizeof(void *) == 0,
-					"buffer size not aligned to pointer size") ||
-		!uffs_Assert(mem_size == num_bufs * buf_size,
-					"pool memory size is wrong"))
-	{
-		return U_FAIL;
-	}
-
-	pool->mem = (u8 *)mem;
-	pool->buf_size = buf_size;
-	pool->num_bufs = num_bufs;
-
-	uffs_SemCreate(&pool->sem);	
-	uffs_SemWait(pool->sem);
-
-	// Initialize the free_list
-	e1 = e2 = pool->free_list = (uffs_PoolEntry *) pool->mem;
-	for (i = 1; i < pool->num_bufs; i++) {
-		e2 = (uffs_PoolEntry *) (pool->mem + i * pool->buf_size);
-		e1->next = e2;
-		e1 = e2;
-	}
-	e2->next = NULL;
-	
-	uffs_SemSignal(pool->sem);
-
-	return U_SUCC;
-}
-
-/**
- * \brief verify pointer validity aganist memory pool
- * \return U_TRUE if valid, U_FALSE if invalid.
- */
-UBOOL uffs_PoolVerify(uffs_Pool *pool, void *p)
-{
-	return p &&
-		(u8 *)p >= pool->mem &&
-		(u8 *)p < pool->mem + (pool->buf_size * pool->num_bufs) &&
-		(((u8 *)p - pool->mem) % pool->buf_size) == 0 ? U_TRUE : U_FALSE;
-}
-
-/**
- * \brief Releases the memory pool.
- * \param[in] pool memory pool
- * \return Returns U_SUCC if successful.
- */
-URET uffs_PoolRelease(uffs_Pool *pool)
-{
-	if (!uffs_Assert(pool != NULL, "pool missing"))
-		return U_FAIL;
-	
-	uffs_SemDelete(&pool->sem);
-
-	return U_SUCC;
-}
-
-/**
- * \brief Get a buffer from the memory pool.
- * \param[in] pool memory pool
- * \return Returns a pointer to the buffer or NULL if none is available.
- */
-void *uffs_PoolGet(uffs_Pool *pool)
-{
-	uffs_PoolEntry *e;
-
-	if (!uffs_Assert(pool != NULL, "pool missing"))
-		return NULL;
-
-	e = pool->free_list;
-	if (e)
-		pool->free_list = e->next;
-
-	return e;
-}
-
-/**
- * \brief Get a buffer from the memory pool.
- * This version is locked and should be used when multiple threads access the
- * same memory pool.
- * \param[in] pool memory pool
- * \return Returns a pointer to the buffer or NULL if none is available.
- */
-void *uffs_PoolGetLocked(uffs_Pool *pool)
-{
-	uffs_PoolEntry *e;
-
-	if (!uffs_Assert(pool != NULL, "pool missing"))
-		return NULL;
-
-	uffs_SemWait(pool->sem);
-	e = pool->free_list;
-	if (e)
-		pool->free_list = e->next;
-	uffs_SemSignal(pool->sem);
-
-	return e;
-}
-
-/**
- * \brief Puts a buffer back to the memory pool.
- * \param[in] pool memory pool
- * \param[in] p buffer to put back
- * \return Returns 0 if successful.
- */
-int uffs_PoolPut(uffs_Pool *pool, void *p)
-{
-	uffs_PoolEntry *e = (uffs_PoolEntry *)p;
-
-	if (!uffs_Assert(pool != NULL, "pool missing"))
-		return -1;
-
-	if (e) {
-		e->next = pool->free_list;
-		pool->free_list = e;
-		return 0;
-	}
-
-	return -1;
-}
-
-/**
- * \brief Puts a buffer back to the memory pool.
- * This version is locked and should be used when multiple threads access the
- * same memory pool.
- * \param[in] pool memory pool
- * \param[in] p buffer to put back
- * \return Returns 0 if successful.
- */
-int uffs_PoolPutLocked(uffs_Pool *pool, void *p)
-{
-	uffs_PoolEntry *e = (uffs_PoolEntry *)p;
-
-	if (!uffs_Assert(pool != NULL, "pool missing"))
-		return -1;
-
-	if (e) {
-		uffs_SemWait(pool->sem);
-		e->next = pool->free_list;
-		pool->free_list = e;
-		uffs_SemSignal(pool->sem);
-		return 0;
-	}
-
-	return -1;
-}
-
-/**
- * \brief Gets a buffer by index (offset).
- * This method returns a buffer from the memory pool by index.
- * \param[in] pool memory pool
- * \param[in] index index
- * \return Returns a pointer to the buffer.
- */
-void *uffs_PoolGetBufByIndex(uffs_Pool *pool, u32 index)
-{
-	if (!uffs_Assert(pool != NULL, "pool missing") ||
-		!uffs_Assert(index < pool->num_bufs,
-				"index(%d) out of range(max %d)", index, pool->num_bufs))
-	{
-		return NULL;
-	}
-
-	return (u8 *) pool->mem + index * pool->buf_size;
-}
-
-/**
- * \brief Gets the index (offset) of a buffer.
- * This method returns the index of a buffer from the memory pool.
- * \param[in] pool memory pool
- * \param[in] p buffer to get index from
- * \return Returns the index of the buffer.
- */
-u32 uffs_PoolGetIndex(uffs_Pool *pool, void *p)
-{
-	if (!uffs_Assert(pool != NULL, "pool missing") ||
-		!uffs_Assert(p >= (void *) pool->mem &&
-			p < (void *) (pool->mem + pool->num_bufs * pool->buf_size),
-			"pointer out of range"))
-	{
-		uffs_Panic();
-	}
-
-	return ((u8 *) p - pool->mem) / pool->buf_size;
-}
-
-/**
- * \brief Check given buffer in free list
- * \return U_TRUE if it's in free list, U_FALSE if not.
- */
-UBOOL uffs_PoolCheckFreeList(uffs_Pool *pool, void *p)
-{
-	uffs_PoolEntry *e;
-	for (e = pool->free_list; e; e = e->next) {
-		if ((void *)e == p)
-			return U_TRUE;
-	}
-	return U_FALSE;
-}
-
-/**
- * \brief this is more efficient version for small nodes number memory pool (< 32)
- */
-static void * FindNextAllocatedInSmallPool(uffs_Pool *pool, void *from)
-{
-	u32 map = 0;
-	uffs_PoolEntry *e;
-	u32 i;
-
-	for (e = pool->free_list; e; e = e->next)
-		map |= (1 << uffs_PoolGetIndex(pool, e));
-
-	for (i = uffs_PoolGetIndex(pool, from);
-			(map & (1 << i)) && i < 32 && i < pool->num_bufs;
-				i++);
-
-	return i < 32 && i < pool->num_bufs ?
-			uffs_PoolGetBufByIndex(pool, i) : NULL;
-}
-
-
-/**
- * \brief Find next allocated memory block
- *
- * \param[in] pool memory pool
- * \param[in] from search start address, if NULL, from pool->mem
- *
- * \return next allocated memory block, NULL if not found.
- *
- * \note This is NOT efficient, don't do it on a pool with large free nodes !
- */
-void * uffs_PoolFindNextAllocated(uffs_Pool *pool, void *from)
-{
-	uffs_PoolEntry *e = NULL;
-	u8 *p = (u8 *)from;
-
-	if (p == NULL)
-		p = pool->mem;
-	else
-		p += pool->buf_size;
-
-	if (pool->num_bufs < 32)
-		return FindNextAllocatedInSmallPool(pool, p);
-
-	// work through the free list, stop if not in free list,
-	// otherwise move to next entry and search free list again.
-
-	if (pool->free_list) {
-		while (uffs_PoolVerify(pool, p)) {
-			e = pool->free_list;
-			while (e) {
-				if (p == (u8 *)e) {
-					p += pool->buf_size; // in free list, move to next entry
-					break;
-				}
-				e = e->next;
-			}
-			if (e == NULL)	// not in free_list, gotcha
-				break;
-		}	
-	}
-
-	return uffs_PoolVerify(pool, p) ? p : NULL ;
-}
-
-/**
- * \brief get free memory block count
- */
-int uffs_PoolGetFreeCount(uffs_Pool *pool)
-{
-	int count = 0;
-	uffs_PoolEntry *e;
-
-	e = pool->free_list;
-	while (e) {
-		count++;
-		e = e->next;
-	}
-
-	return count;
-}
-
-/**
- * \brief put all memory block back, return how many memory blocks were put back
- */
-int uffs_PoolPutAll(uffs_Pool *pool)
-{
-	void *p = NULL;
-	int count = 0;
-
-	do {
-		p = uffs_PoolFindNextAllocated(pool, p);
-		if (p) {
-			uffs_PoolPut(pool, p);
-			count++;
-		}
-	} while (p);
-
-	return count;
-}
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_public.c b/components/dfs/filesystems/uffs/src/uffs/uffs_public.c
deleted file mode 100644
index 348b7892d3..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_public.c
+++ /dev/null
@@ -1,448 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_public.c
- * \brief public and miscellaneous functions
- * \author Ricky Zheng, created 10th May, 2005
- */
-
-#include "uffs_config.h"
-#include "uffs/uffs_types.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_crc.h"
-
-#include <string.h>
-
-#define PFX "pub : "
-
-
-int uffs_GetFirstBlockTimeStamp(void)
-{
-	return 0;
-}
-
-int uffs_GetNextBlockTimeStamp(int prev)
-{
-	return (prev + 1) % 3;
-}
-
-UBOOL uffs_IsSrcNewerThanObj(int src, int obj)
-{
-	switch (src - obj) {
-	case 0:
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"the two block have the same time stamp ?");
-		break;
-	case 1:
-	case -2:
-		return U_TRUE;
-	case -1:
-	case 2:
-		return U_FALSE;
-	default:
-		uffs_Perror(UFFS_MSG_SERIOUS,  "time stamp out of range !");
-		break;
-	}
-
-	return U_FALSE;
-}
-
-
-/** 
- * \brief given a page, search the block to find
- *			a better page with the same page id
- *
- * \param[in] dev uffs device
- * \param[in] bc block info
- * \param[in] page page number to be compared with
- *
- * \return the better page number, could be the same with the given page.
- *         if the given page does not have good tag, return UFFS_INVALID_PAGE.
- */
-u16 uffs_FindBestPageInBlock(uffs_Device *dev, uffs_BlockInfo *bc, u16 page)
-{
-	int i;
-	uffs_Tags *tag, *tag_old;
-
-	if (!uffs_Assert(page != UFFS_INVALID_PAGE, "invalid param !"))
-		return page;	// just in case ...
-
-	uffs_BlockInfoLoad(dev, bc, page); // load old page
-	tag_old = GET_TAG(bc, page);
-
-	if (!uffs_Assert(TAG_IS_GOOD(tag_old), "try to find a invalid page ?"))
-		return UFFS_INVALID_PAGE;
-
-	if (page == dev->attr->pages_per_block - 1)	// already the last page ?
-		return page;
-
-	for (i = dev->attr->pages_per_block - 1; i > page; i--) {
-		uffs_BlockInfoLoad(dev, bc, i);
-		tag = GET_TAG(bc, i);
-		if (TAG_IS_GOOD(tag) &&
-			TAG_PAGE_ID(tag) == TAG_PAGE_ID(tag_old) &&
-			TAG_PARENT(tag) == TAG_PARENT(tag_old) &&
-			TAG_SERIAL(tag) == TAG_SERIAL(tag_old))
-		{
-			break;
-		}
-	}
-
-	return i;
-}
-
-/** 
- * \brief find a valid page with given page_id
- * \param[in] dev uffs device
- * \param[in] bc block info
- * \param[in] page_id page_id to be find
- * \return the valid page number which has given page_id
- * \retval >=0 page number
- * \retval UFFS_INVALID_PAGE page not found
- */
-u16 uffs_FindPageInBlockWithPageId(uffs_Device *dev,
-								   uffs_BlockInfo *bc, u16 page_id)
-{
-	u16 page;
-	uffs_Tags *tag;
-
-	//Indeed, the page which has page_id, should ahead of page_id ...
-	for (page = page_id; page < dev->attr->pages_per_block; page++) {
-		uffs_BlockInfoLoad(dev, bc, page);
-		tag = &(bc->spares[page].tag);
-		if (TAG_IS_GOOD(tag) && TAG_PAGE_ID(tag) == page_id)
-			return page;
-	}
-
-	return UFFS_INVALID_PAGE;
-}
-
-/** 
- * Are all the pages in the block used ?
- */
-UBOOL uffs_IsBlockPagesFullUsed(uffs_Device *dev, uffs_BlockInfo *bc)
-{
-	uffs_Tags *tag;
-
-	// if the last page is dirty, then the whole block is full
-	uffs_BlockInfoLoad(dev, bc, dev->attr->pages_per_block - 1);
-	tag = GET_TAG(bc, dev->attr->pages_per_block - 1);
-
-	return TAG_IS_GOOD(tag) ? U_TRUE : U_FALSE;
-}
-
-/** 
- * Is this block used ?
- * \param[in] dev uffs device
- * \param[in] bc block info
- * \retval U_TRUE block is used
- * \retval U_FALSE block is free
- */
-UBOOL uffs_IsThisBlockUsed(uffs_Device *dev, uffs_BlockInfo *bc)
-{
-	uffs_Tags *tag;
-
-	// if the first page is dirty, then this block is used.
-	uffs_BlockInfoLoad(dev, bc, 0);
-	tag = GET_TAG(bc, 0);
-
-	return TAG_IS_DIRTY(tag) ? U_TRUE : U_FALSE;
-}
-
-/** 
- * get block time stamp from a exist block
- * \param[in] dev uffs device
- * \param[in] bc block info
- */
-int uffs_GetBlockTimeStamp(uffs_Device *dev, uffs_BlockInfo *bc)
-{
-	if(uffs_IsThisBlockUsed(dev, bc) == U_FALSE) 
-		return uffs_GetFirstBlockTimeStamp();
-	else{
-		uffs_BlockInfoLoad(dev, bc, 0);
-		return TAG_BLOCK_TS(GET_TAG(bc, 0));
-	}
-
-}
-
-/** 
- * find first free page from 'pageFrom'
- * \param[in] dev uffs device
- * \param[in] bc block info
- * \param[in] pageFrom search from this page
- * \return return first free page number from 'pageFrom'
- * \retval UFFS_INVALID_PAGE no free page found
- * \retval >=0 the first free page number
- */
-u16 uffs_FindFirstFreePage(uffs_Device *dev,
-						   uffs_BlockInfo *bc, u16 pageFrom)
-{
-	u16 i;
-
-	for (i = pageFrom; i < dev->attr->pages_per_block; i++) {
-		uffs_BlockInfoLoad(dev, bc, i);
-		if (uffs_IsPageErased(dev, bc, i) == U_TRUE)
-			return i;
-	}
-
-	return UFFS_INVALID_PAGE; //free page not found
-}
-
-
-/** 
- * calculate sum of data, 8bit version
- * \param[in] p data pointer
- * \param[in] len length of data
- * \return return sum of data, 8bit
- */
-u8 uffs_MakeSum8(const void *p, int len)
-{
-	return uffs_crc16sum(p, len) & 0xFF;
-}
-
-/** 
- * calculate sum of datam, 16bit version
- * \param[in] p data pointer
- * \param[in] len length of data
- * \return return sum of data, 16bit
- */
-u16 uffs_MakeSum16(const void *p, int len)
-{
-	return uffs_crc16sum(p, len);
-}
-
-/** 
- * create a new file on a free block
- * \param[in] dev uffs device
- * \param[in] parent parent dir serial num
- * \param[in] serial serial num of this new file
- * \param[in] bc block information
- * \param[in] fi file information
- * \note parent, serial, bc must be provided before,
- *		 and all information in fi should be filled well before.
- */
-URET uffs_CreateNewFile(uffs_Device *dev,
-						u16 parent, u16 serial,
-						uffs_BlockInfo *bc, uffs_FileInfo *fi)
-{
-	uffs_Tags *tag;
-	uffs_Buf *buf;
-
-	uffs_BlockInfoLoad(dev, bc, 0);
-
-	tag = GET_TAG(bc, 0);
-	TAG_PARENT(tag) = parent;
-	TAG_SERIAL(tag) = serial;
-	TAG_DATA_LEN(tag) = sizeof(uffs_FileInfo);
-
-	buf = uffs_BufGet(dev, parent, serial, 0);
-	if (buf == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "get buf fail.");
-		return U_FAIL;
-	}
-
-	memcpy(buf->data, fi, TAG_DATA_LEN(tag));
-	buf->data_len = TAG_DATA_LEN(tag);
-
-	return uffs_BufPut(dev, buf);
-}
-
-
-/** 
- * \brief calculate data length of a file block
- * \param[in] dev uffs device
- * \param[in] bc block info
- */
-int uffs_GetBlockFileDataLength(uffs_Device *dev, uffs_BlockInfo *bc, u8 type)
-{
-	u16 page_id;
-	u16 i;
-	uffs_Tags *tag;
-	int size = 0;
-	u16 page;
-	u16 lastPage = dev->attr->pages_per_block - 1;
-
-	uffs_BlockInfoLoad(dev, bc, lastPage);
-	tag = GET_TAG(bc, lastPage);
-
-	if (TAG_IS_GOOD(tag)) {
-		// First try the last page.
-		// if it's the full loaded file/data block, then we have a quick path.
-		if (type == UFFS_TYPE_FILE) {
-			if (TAG_PAGE_ID(tag) == (lastPage - 1)) {
-				size = dev->com.pg_data_size * (dev->attr->pages_per_block - 2) + TAG_DATA_LEN(tag);
-				return size;
-			}
-		}
-		if (type == UFFS_TYPE_DATA) {
-			if (TAG_PAGE_ID(tag) == lastPage) {
-				size = dev->com.pg_data_size * (dev->attr->pages_per_block - 1) + TAG_DATA_LEN(tag);
-				return size;
-			}
-		}
-	}
-
-	// ok, it's not the full loaded file/data block,
-	// need to read all spares....
-	uffs_BlockInfoLoad(dev, bc, UFFS_ALL_PAGES);
-	tag = GET_TAG(bc, 0);
-	if (uffs_Assert(TAG_IS_GOOD(tag), "block %d page 0 does not have good tag ?", bc->block)) {
-		if (TAG_TYPE(tag) == UFFS_TYPE_FILE) {
-			page_id = 1;	//In file header block, file data page_id from 1
-			i = 1;			//search from page 1
-		}
-		else {
-			page_id = 0;	//in normal file data block, page_id from 0
-			i = 0;			//in normal file data block, search from page 0
-		}
-		for (; i < dev->attr->pages_per_block; i++) {
-			tag = GET_TAG(bc, i);
-			if (TAG_IS_GOOD(tag)) {
-				if (page_id == TAG_PAGE_ID(tag)) {
-					page = uffs_FindBestPageInBlock(dev, bc, i);
-					if (uffs_Assert(page != UFFS_INVALID_PAGE, "got an invalid page ?")) {
-						size += TAG_DATA_LEN(GET_TAG(bc, page));
-						page_id++;
-					}
-				}
-			}
-		}
-	}
-
-	return size;
-}
-
-/** 
- * get free pages number
- * \param[in] dev uffs device
- * \param[in] bc block info
- */
-int uffs_GetFreePagesCount(uffs_Device *dev, uffs_BlockInfo *bc)
-{
-	int count = 0;
-	int i;
-
-	// search from the last page ... to first page
-	for (i = dev->attr->pages_per_block - 1; i >= 0; i--) {
-		uffs_BlockInfoLoad(dev, bc, i);
-		if (uffs_IsPageErased(dev, bc, (u16)i) == U_TRUE) {
-			count++;
-		}
-		else {
-			if (TAG_IS_GOOD(GET_TAG(bc, i)))  // it won't be any free page if we see a good tag.
-				break;
-		}
-	}
-
-	return count;
-}
-/** 
- * \brief Is the block erased ?
- * \param[in] dev uffs device
- * \param[in] bc block info
- * \param[in] page page number to be check
- * \retval U_TRUE block is erased, ready to use
- * \retval U_FALSE block is dirty, maybe use by file
- */
-UBOOL uffs_IsPageErased(uffs_Device *dev, uffs_BlockInfo *bc, u16 page)
-{
-	uffs_Tags *tag;
-
-	uffs_BlockInfoLoad(dev, bc, page);
-	tag = GET_TAG(bc, page);
-
-	if (!TAG_IS_SEALED(tag) &&
-		!TAG_IS_DIRTY(tag) &&
-		!TAG_IS_VALID(tag)) {
-		return U_TRUE;
-	}
-
-	return U_FALSE;
-}
-
-/** 
- * get partition used (bytes)
- */
-int uffs_GetDeviceUsed(uffs_Device *dev)
-{
-	return (dev->par.end - dev->par.start + 1 -
-			dev->tree.bad_count	- dev->tree.erased_count
-			) *
-				dev->attr->page_data_size *
-					dev->attr->pages_per_block;
-}
-
-/** 
- * get partition free (bytes)
- */
-int uffs_GetDeviceFree(uffs_Device *dev)
-{
-	return dev->tree.erased_count *
-			dev->attr->page_data_size *
-				dev->attr->pages_per_block;
-}
-
-/** 
- * get partition total size (bytes)
- */
-int uffs_GetDeviceTotal(uffs_Device *dev)
-{
-	return (dev->par.end - dev->par.start + 1) *
-				dev->attr->page_data_size *
-					dev->attr->pages_per_block;
-}
-
-/**
- * load mini hader from flash
- */
-URET uffs_LoadMiniHeader(uffs_Device *dev,
-						 int block, u16 page, struct uffs_MiniHeaderSt *header)
-{
-	int ret;
-	struct uffs_FlashOpsSt *ops = dev->ops;
-
-	if (ops->ReadPageWithLayout) {
-		ret = ops->ReadPageWithLayout(dev, block, page, (u8 *)header, 
-										sizeof(struct uffs_MiniHeaderSt), NULL, NULL, NULL);
-	}
-	else {
-		ret = ops->ReadPage(dev, block, page, (u8 *)header, sizeof(struct uffs_MiniHeaderSt), NULL, NULL, 0);
-	}
-
-	dev->st.page_header_read_count++;
-
-	return UFFS_FLASH_HAVE_ERR(ret) ? U_FAIL : U_SUCC;
-}
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_tree.c b/components/dfs/filesystems/uffs/src/uffs/uffs_tree.c
deleted file mode 100644
index 7e51a9275f..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_tree.c
+++ /dev/null
@@ -1,1278 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_tree.c
- * \brief seting up uffs tree data structure
- * \author Ricky Zheng, created 13th May, 2005
- */
-
-#include "uffs_config.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_pool.h"
-#include "uffs/uffs_flash.h"
-#include "uffs/uffs_badblock.h"
-
-#include <string.h>
-
-#define TPOOL(dev) &(dev->mem.tree_pool)
-
-#define PFX "tree: "
-
-static void uffs_InsertToFileEntry(uffs_Device *dev, TreeNode *node);
-static void uffs_InsertToDirEntry(uffs_Device *dev, TreeNode *node);
-static void uffs_InsertToDataEntry(uffs_Device *dev, TreeNode *node);
-
-static TreeNode * uffs_TreeGetErasedNodeNoCheck(uffs_Device *dev);
-
-
-struct BlockTypeStatSt {
-	int dir;
-	int file;
-	int data;
-};
-
-/** 
- * \brief initialize tree buffers
- * \param[in] dev uffs device
- */
-URET uffs_TreeInit(uffs_Device *dev)
-{
-	int size;
-	int num;
-	uffs_Pool *pool;
-	int i;
-
-	size = sizeof(TreeNode);
-	num = dev->par.end - dev->par.start + 1;
-	
-	pool = &(dev->mem.tree_pool);
-
-	if (dev->mem.tree_nodes_pool_size == 0) {
-		if (dev->mem.malloc) {
-			dev->mem.tree_nodes_pool_buf = dev->mem.malloc(dev, size * num);
-			if (dev->mem.tree_nodes_pool_buf)
-				dev->mem.tree_nodes_pool_size = size * num;
-		}
-	}
-	if (size * num > dev->mem.tree_nodes_pool_size) {
-		uffs_Perror(UFFS_MSG_DEAD,
-					"Tree buffer require %d but only %d available.",
-					size * num, dev->mem.tree_nodes_pool_size);
-		memset(pool, 0, sizeof(uffs_Pool));
-		return U_FAIL;
-	}
-	uffs_Perror(UFFS_MSG_NOISY, "alloc tree nodes %d bytes.", size * num);
-	
-	uffs_PoolInit(pool, dev->mem.tree_nodes_pool_buf,
-					dev->mem.tree_nodes_pool_size, size, num);
-
-	dev->tree.erased = NULL;
-	dev->tree.erased_tail = NULL;
-	dev->tree.erased_count = 0;
-	dev->tree.bad = NULL;
-	dev->tree.bad_count = 0;
-
-	for (i = 0; i < DIR_NODE_ENTRY_LEN; i++) {
-		dev->tree.dir_entry[i] = EMPTY_NODE;
-	}
-
-	for (i = 0; i < FILE_NODE_ENTRY_LEN; i++) {
-		dev->tree.file_entry[i] = EMPTY_NODE;
-	}
-
-	for (i = 0; i < DATA_NODE_ENTRY_LEN; i++) {
-		dev->tree.data_entry[i] = EMPTY_NODE;
-	}
-
-	dev->tree.max_serial = ROOT_DIR_SERIAL;
-	
-	return U_SUCC;
-}
-/** 
- * \brief release tree buffers, call this function when unmount
- * \param[in] dev uffs device
- */
-URET uffs_TreeRelease(uffs_Device *dev)
-{
-	uffs_Pool *pool;
-	
-	pool = &(dev->mem.tree_pool);
-	if (pool->mem && dev->mem.free) {
-		dev->mem.free(dev, pool->mem);
-		pool->mem = NULL;
-		dev->mem.tree_nodes_pool_size = 0;
-	}
-	uffs_PoolRelease(pool);
-	memset(pool, 0, sizeof(uffs_Pool));
-
-	return U_SUCC;
-}
-
-static u16 _GetBlockFromNode(u8 type, TreeNode *node)
-{
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		return node->u.dir.block;
-	case UFFS_TYPE_FILE:
-		return node->u.file.block;
-	case UFFS_TYPE_DATA:
-		return node->u.data.block;
-	}
-	uffs_Perror(UFFS_MSG_SERIOUS, "unkown type, X-block");
-	return UFFS_INVALID_BLOCK;
-}
-
-#if 0
-static u16 _GetParentFromNode(u8 type, TreeNode *node)
-{
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		return node->u.dir.parent;
-	case UFFS_TYPE_FILE:
-		return node->u.file.parent;
-	case UFFS_TYPE_DATA:
-		return node->u.data.parent;
-	}
-	uffs_Perror(UFFS_MSG_SERIOUS, "unkown type, X-parent");
-	return INVALID_UFFS_SERIAL;
-}
-
-
-static u16 _GetSerialFromNode(u8 type, TreeNode *node)
-{
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		return node->u.dir.serial;
-	case UFFS_TYPE_FILE:
-		return node->u.file.serial;
-	case UFFS_TYPE_DATA:
-		return node->u.data.serial;
-	}
-	uffs_Perror(UFFS_MSG_SERIOUS, "unkown type, X-serial");
-	return INVALID_UFFS_SERIAL;
-}
-#endif
-
-/** 
- * insert a TreeNode *node to tree
- * \param[in] dev uffs device
- * \param[in] type type of node
- * \param[in] node node to be insert to
- */
-void uffs_InsertNodeToTree(uffs_Device *dev, u8 type, TreeNode *node)
-{
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		uffs_InsertToDirEntry(dev, node);
-		break;
-	case UFFS_TYPE_FILE:
-		uffs_InsertToFileEntry(dev, node);
-		break;
-	case UFFS_TYPE_DATA:
-		uffs_InsertToDataEntry(dev, node);
-		break;
-	default:
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"unkown type, can't insert to tree");
-		break;
-	}
-}
-
-/** 
- * find a node from tree
- * \param[in] dev uffs device
- * \param[in] type type of node
- * \param[in] parent parent serial num
- * \param[in] serial serial num
- */
-TreeNode * uffs_FindFromTree(uffs_Device *dev,
-							 u8 type, u16 parent, u16 serial)
-{
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		return uffs_TreeFindDirNode(dev, serial);
-	case UFFS_TYPE_FILE:
-		return uffs_TreeFindFileNode(dev, serial);
-	case UFFS_TYPE_DATA:
-		return uffs_TreeFindDataNode(dev, parent, serial);
-	}
-	uffs_Perror(UFFS_MSG_SERIOUS,
-				"unkown type, can't find node");
-	return NULL;
-}
-
-
-
-static URET _BuildValidTreeNode(uffs_Device *dev,
-								TreeNode *node,		//!< empty node
-								uffs_BlockInfo *bc,
-								struct BlockTypeStatSt *st)
-{
-	uffs_Tags *tag;
-	TreeNode *node_alt;
-	u16 block, parent, serial, block_alt, block_save;
-	uffs_BlockInfo *bc_alt;
-	u8 type;
-	int page;
-	UBOOL needToInsertToTree = U_FALSE;
-	uffs_Buf *buf = NULL;
-	uffs_FileInfo *info;
-	u16 data_sum = 0;
-
-	// check the first page on the block ...
-	uffs_BlockInfoLoad(dev, bc, 0);
-
-	tag = GET_TAG(bc, 0);  //get first page's tag
-
-	if (!TAG_IS_DIRTY(tag)) {
-		// should never go here ... unless mark dirty page failed ?
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"First page is clean in a non-erased block ?");
-		return U_FAIL;
-	}
-
-	if (!TAG_IS_VALID(tag)) {
-		//first page is invalid ? should be erased now!
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"first page in block %d is invalid, will be erased now!",
-					bc->block);
-		goto process_invalid_block;		
-	}
-
-	block = bc->block;
-	parent = TAG_PARENT(tag);
-	serial = TAG_SERIAL(tag);
-	type = TAG_TYPE(tag);
-
-	// check if there is an 'alternative block' 
-	// (node which has the same serial number) in tree ?
-	node_alt = uffs_FindFromTree(dev, type, parent, serial); 
-
-	if (node_alt != NULL) {
-		//find a alternate node ! need to check the timestamp !
-
-		block_alt = _GetBlockFromNode(type, node_alt);
-
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"Process unclean block (%d vs %d)", block, block_alt);
-
-		if (block_alt == INVALID_UFFS_SERIAL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "invalid block ?");
-			return U_FAIL;
-		}
-		
-		bc_alt = uffs_BlockInfoGet(dev, block_alt);
-		if (bc_alt == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "can't get block info ");
-			return U_FAIL;
-		}
-		uffs_BlockInfoLoad(dev, bc_alt, 0);
-		if (uffs_IsSrcNewerThanObj (
-				TAG_BLOCK_TS(tag),
-				TAG_BLOCK_TS(GET_TAG(bc_alt, 0))) == U_TRUE) {
-
-			//the node is newer than node_alt, so keep node_alt, and erase node
-			uffs_FlashEraseBlock(dev, block);
-			node->u.list.block = block;
-			if (HAVE_BADBLOCK(dev))
-				uffs_BadBlockProcess(dev, node);
-			else
-				uffs_TreeInsertToErasedListTail(dev, node);
-
-			uffs_BlockInfoPut(dev, bc_alt);  //put back bc_alt before we return.
-			return U_SUCC;
-		}
-		else {
-			//the node is older than node_alt, so keep node, and erase node_alt
-			//we use node as erased node to insert to erased list
-
-			block_save = _GetBlockFromNode(type, node_alt);
-			uffs_FlashEraseBlock(dev, block_save);
-			node->u.list.block = block_save;
-			if (HAVE_BADBLOCK(dev))
-				uffs_BadBlockProcess(dev, node);
-			else
-				uffs_TreeInsertToErasedListTail(dev, node);
-
-			//put back bc_alt because we don't need it anymore.
-			uffs_BlockInfoPut(dev, bc_alt);
-			
-			//use node_alt to store new informations in following
-			node = node_alt;
-
-			needToInsertToTree = U_FALSE;
-		}
-	}
-	else {
-		needToInsertToTree = U_TRUE;
-	}
-
-	if (type == UFFS_TYPE_DIR || type == UFFS_TYPE_FILE) {
-		buf = uffs_BufClone(dev, NULL);
-		if (buf == NULL)
-			return U_FAIL;
-		uffs_BlockInfoLoad(dev, bc, UFFS_ALL_PAGES);
-		page = uffs_FindPageInBlockWithPageId(dev, bc, 0);
-		if (page == UFFS_INVALID_PAGE) {
-			uffs_BufFreeClone(dev, buf);
-			uffs_Perror(UFFS_MSG_SERIOUS,
-				"Can't find any valid page for page_id=0 ? invalid block !"
-				"this might be caused by the tag layout change.\n");
-			goto process_invalid_block;
-		}
-		page = uffs_FindBestPageInBlock(dev, bc, page);
-		uffs_FlashReadPage(dev, block, page, buf, U_FALSE);
-		info = (uffs_FileInfo *) (buf->data);
-		data_sum = uffs_MakeSum16(info->name, info->name_len);
-		uffs_BufFreeClone(dev, buf);
-	}
-
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		node->u.dir.block = bc->block;
-		node->u.dir.checksum = data_sum;
-		node->u.dir.parent = TAG_PARENT(tag);
-		node->u.dir.serial = TAG_SERIAL(tag);
-		st->dir++;
-		break;
-	case UFFS_TYPE_FILE:
-		node->u.file.block = bc->block;
-		node->u.file.checksum = data_sum;
-		node->u.file.parent = TAG_PARENT(tag);
-		node->u.file.serial = TAG_SERIAL(tag);
-		node->u.file.len = uffs_GetBlockFileDataLength(dev, bc, UFFS_TYPE_FILE);  
-		st->file++;
-		break;
-	case UFFS_TYPE_DATA:
-		node->u.data.block = bc->block;
-		node->u.data.parent = TAG_PARENT(tag);
-		node->u.data.serial = TAG_SERIAL(tag);
-		node->u.data.len = uffs_GetBlockFileDataLength(dev, bc, UFFS_TYPE_DATA); 
-		st->data++;
-		break;
-	}
-
-	if (needToInsertToTree == U_TRUE) {
-		uffs_InsertNodeToTree(dev, type, node);
-	}
-
-	return U_SUCC;
-
-process_invalid_block:
-	/* erase the invalid block */
-	uffs_FlashEraseBlock(dev, bc->block);
-
-	node->u.list.block = bc->block;
-
-	if (HAVE_BADBLOCK(dev))
-		uffs_BadBlockProcess(dev, node);
-	else
-		uffs_TreeInsertToErasedListTail(dev, node);
-
-	return U_SUCC;
-}
-
-
-static URET _ScanAndFixUnCleanPage(uffs_Device *dev, uffs_BlockInfo *bc)
-{
-	int page;
-	uffs_Tags *tag;
-	struct uffs_MiniHeaderSt header;
-
-	/* in most case, the valid block contents fewer free page,
-		so it's better scan from the last page ... to page 1.
-		note: scanning page 0 is not necessary, will check it later.
-
-		The worse case: read (pages_per_block - 1) * (mini header + spares) !
-		most case: read one spare.
-	*/
-	for (page = dev->attr->pages_per_block - 1; page > 0; page--) {
-		uffs_BlockInfoLoad(dev, bc, page);
-		tag = GET_TAG(bc, page);
-
-		if (TAG_IS_SEALED(tag))
-			break;	// tag sealed, no unclean page in this block.
-
-		if (TAG_IS_DIRTY(tag) || TAG_IS_VALID(tag)) {  // tag not sealed but dirty/valid ?
-			uffs_Perror(UFFS_MSG_NORMAL,
-					"unclean page found, block %d page %d",
-					bc->block, page);
-
-			// ok, an unclean page found.
-			// This unclean page can be identified by tag.
-			// We can leave it as it is, but performing a block recover would be good ?
-			// There won't be another unclean page in this block ... stop here.
-			break;
-		}
-
-		// now we have a clean tag (all 0xFF ?). Need to check mini header to see if it's an unclean page.
-		if (uffs_LoadMiniHeader(dev, bc->block, page, &header) == U_FAIL)
-			return U_FAIL;
-
-		if (header.status != 0xFF) {
-			// page data is dirty? this is an unclean page and we should explicitly mark tag as 'dirty and invalid'.
-			// This writing does not violate "no partial program" claim, because we are writing to a clean page spare.
-			uffs_Perror(UFFS_MSG_NORMAL,
-						"unclean page found, block %d page %d, mark it.",
-						bc->block, page);
-			uffs_FlashMarkDirtyPage(dev, bc, page);
-		}
-	}
-
-	return U_SUCC;
-}
-
-
-static URET _BuildTreeStepOne(uffs_Device *dev)
-{
-	int block_lt;
-	uffs_BlockInfo *bc = NULL;
-	TreeNode *node;
-	struct uffs_TreeSt *tree;
-	uffs_Pool *pool;
-	struct uffs_MiniHeaderSt header;
-	URET ret = U_SUCC;
-	struct BlockTypeStatSt st = {0, 0, 0};
-	
-	tree = &(dev->tree);
-	pool = TPOOL(dev);
-
-	tree->bad = NULL;
-	tree->bad_count = 0;
-	tree->erased = NULL;
-	tree->erased_tail = NULL;
-	tree->erased_count = 0;
-
-	uffs_Perror(UFFS_MSG_NOISY, "build tree step one");
-
-//	printf("s:%d e:%d\n", dev->par.start, dev->par.end);
-	for (block_lt = dev->par.start; block_lt <= dev->par.end; block_lt++) {
-		bc = uffs_BlockInfoGet(dev, block_lt);
-		if (bc == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "step one:fail to get block info");
-			ret = U_FAIL;
-			break;
-		}
-		node = (TreeNode *)uffs_PoolGet(pool);
-		if (node == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "insufficient tree node!");
-			ret = U_FAIL;
-			break;
-		}
-
-		// Need to check bad block at first !
-		if (uffs_FlashIsBadBlock(dev, block_lt) == U_TRUE) {
-			node->u.list.block = block_lt;
-			uffs_TreeInsertToBadBlockList(dev, node);
-			uffs_Perror(UFFS_MSG_NORMAL, "found bad block %d", block_lt);
-		}
-		else if (uffs_IsPageErased(dev, bc, 0) == U_TRUE) { //@ read one spare: 0
-			// page 0 tag shows it's an erased block, we need to check the mini header status to make sure it is clean.
-			if (uffs_LoadMiniHeader(dev, block_lt, 0, &header) == U_FAIL) {
-				uffs_Perror(UFFS_MSG_SERIOUS,
-							"I/O error when reading mini header !"
-							"block %d page %d",
-							block_lt, 0);
-				ret = U_FAIL;
-				break;
-			}
-
-			if (header.status != 0xFF) {
-				// page 0 tag is clean but page data is dirty ???
-				// this block should be erased immediately !
-				uffs_FlashEraseBlock(dev, block_lt);
-			}
-			node->u.list.block = block_lt;
-			if (HAVE_BADBLOCK(dev)) {
-				uffs_Perror(UFFS_MSG_NORMAL,
-							"New bad block (%d) discovered.", block_lt);
-				uffs_BadBlockProcess(dev, node);
-			}
-			else {
-				// page 0 is clean does not means all pages in this block are clean,
-				// need to check this block later before use it.
-				uffs_TreeInsertToErasedListTailEx(dev, node, 1);
-			}
-		}
-		else {
-			
-			// this block have valid data page(s).
-
-			ret = _ScanAndFixUnCleanPage(dev, bc);
-			if (ret == U_FAIL)
-				break;
-
-			ret = _BuildValidTreeNode(dev, node, bc, &st);
-			if (ret == U_FAIL)
-				break;
-
-		}
-		uffs_BlockInfoPut(dev, bc);
-	} //end of for
-
-	if(ret == U_FAIL) 
-		uffs_BlockInfoPut(dev, bc);
-
-	uffs_Perror(UFFS_MSG_NORMAL,
-				"DIR %d, FILE %d, DATA %d", st.dir, st.file, st.data);
-
-	return ret;
-}
-
-static URET _BuildTreeStepTwo(uffs_Device *dev)
-{
-	//Randomise the start point of erased block to implement wear levelling
-	u32 startCount = 0;
-	u32 endPoint;
-	TreeNode *node;
-
-	uffs_Perror(UFFS_MSG_NOISY, "build tree step two");
-
-	endPoint = uffs_GetCurDateTime() % (dev->tree.erased_count + 1);
-	while (startCount < endPoint) {
-		node = uffs_TreeGetErasedNodeNoCheck(dev);
-		if (node == NULL) {
-			uffs_Perror(UFFS_MSG_SERIOUS, "No erased block ?");
-			return U_FAIL;
-		}
-		uffs_TreeInsertToErasedListTailEx(dev, node, -1);
-		startCount++;
-	}
-
-	return U_SUCC;
-}
-
-TreeNode * uffs_TreeFindFileNode(uffs_Device *dev, u16 serial)
-{
-	int hash;
-	u16 x;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-
-	hash = serial & FILE_NODE_HASH_MASK;
-	x = tree->file_entry[hash];
-	while (x != EMPTY_NODE) {
-		node = FROM_IDX(x, TPOOL(dev));
-		if (node->u.file.serial == serial) {
-			return node;
-		}
-		else {
-			x = node->hash_next;
-		}
-	}
-	return NULL;
-}
-
-/** add a node into suspend list */
-void uffs_TreeSuspendAdd(uffs_Device *dev, TreeNode *node)
-{
-	node->u.list.next = dev->tree.suspend;
-	node->u.list.prev = NULL;
-
-	if (dev->tree.suspend)
-		dev->tree.suspend->u.list.prev = node;
-	dev->tree.suspend = node;
-}
-
-/** search suspend list */
-TreeNode * uffs_TreeFindSuspendNode(uffs_Device *dev, u16 serial)
-{
-	TreeNode *node = dev->tree.suspend;
-	while (node) {
-		if (node->u.list.u.serial == serial)
-			break;
-		
-		node = node->u.list.next;
-	}
-
-	return node;
-}
-
-/** remove a node from suspend list */
-void uffs_TreeRemoveSuspendNode(uffs_Device *dev, TreeNode *node)
-{
-	if (node->u.list.prev)
-		node->u.list.prev->u.list.next = node->u.list.next;
-	if (node->u.list.next)
-		node->u.list.next->u.list.prev = node->u.list.prev;
-	if (node == dev->tree.suspend)
-		dev->tree.suspend = NULL;
-}
-
-TreeNode * uffs_TreeFindFileNodeWithParent(uffs_Device *dev, u16 parent)
-{
-	int hash;
-	u16 x;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-
-	for (hash = 0; hash < FILE_NODE_ENTRY_LEN; hash++) {
-		x = tree->file_entry[hash];
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.file.parent == parent) {
-				return node;
-			}
-			else {
-				x = node->hash_next;
-			}
-		}
-	}
-
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindDirNode(uffs_Device *dev, u16 serial)
-{
-	int hash;
-	u16 x;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-
-	hash = serial & DIR_NODE_HASH_MASK;
-	x = tree->dir_entry[hash];
-	while (x != EMPTY_NODE) {
-		node = FROM_IDX(x, TPOOL(dev));
-		if (node->u.dir.serial == serial) {
-			return node;
-		}
-		else {
-			x = node->hash_next;
-		}
-	}
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindDirNodeWithParent(uffs_Device *dev, u16 parent)
-{
-	int hash;
-	u16 x;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-
-	for (hash = 0; hash < DIR_NODE_ENTRY_LEN; hash++) {
-		x = tree->dir_entry[hash];
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.dir.parent == parent) {
-				return node;
-			}
-			else {
-				x = node->hash_next;
-			}
-		}
-	}
-	
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindFileNodeByName(uffs_Device *dev,
-										const char *name,
-										u32 len,
-										u16 sum, u16 parent)
-{
-	int i;
-	u16 x;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-	
-	for (i = 0; i < FILE_NODE_ENTRY_LEN; i++) {
-		x = tree->file_entry[i];
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.file.checksum == sum && node->u.file.parent == parent) {
-				//read file name from flash, and compare...
-				if (uffs_TreeCompareFileName(dev, name, len, sum, 
-												node, UFFS_TYPE_FILE) == U_TRUE) {
-					//Got it!
-					return node;
-				}
-			}
-			x = node->hash_next;
-		}
-	}
-
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindDataNode(uffs_Device *dev, u16 parent, u16 serial)
-{
-	int hash;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-	u16 x;
-
-	hash = GET_DATA_HASH(parent, serial);
-	x = tree->data_entry[hash];
-	while(x != EMPTY_NODE) {
-		node = FROM_IDX(x, TPOOL(dev));
-
-		if(node->u.data.parent == parent &&
-			node->u.data.serial == serial)
-				return node;
-
-		x = node->hash_next;
-	}
-
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindDirNodeByBlock(uffs_Device *dev, u16 block)
-{
-	int hash;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-	u16 x;
-
-	for (hash = 0; hash < DIR_NODE_ENTRY_LEN; hash++) {
-		x = tree->dir_entry[hash];
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.dir.block == block)
-				return node;
-			x = node->hash_next;
-		}
-	}
-
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindErasedNodeByBlock(uffs_Device *dev, u16 block)
-{
-	TreeNode *node;
-	node = dev->tree.erased;
-
-	while (node) {
-		if (node->u.list.block == block) 
-			return node;
-		node = node->u.list.next;
-	}
-		
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindBadNodeByBlock(uffs_Device *dev, u16 block)
-{
-	TreeNode *node;
-	node = dev->tree.bad;
-
-	while (node) {
-		if (node->u.list.block == block) 
-			return node;
-		node = node->u.list.next;
-	}
-		
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindFileNodeByBlock(uffs_Device *dev, u16 block)
-{
-	int hash;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-	u16 x;
-
-	for (hash = 0; hash < FILE_NODE_ENTRY_LEN; hash++) {
-		x = tree->file_entry[hash];
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.file.block == block)
-				return node;
-			x = node->hash_next;
-		}
-	}
-
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindDataNodeByBlock(uffs_Device *dev, u16 block)
-{
-	int hash;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-	u16 x;
-
-	for (hash = 0; hash < DATA_NODE_ENTRY_LEN; hash++) {
-		x = tree->data_entry[hash];
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.data.block == block)
-				return node;
-			x = node->hash_next;
-		}
-	}
-
-	return NULL;
-}
-
-TreeNode * uffs_TreeFindNodeByBlock(uffs_Device *dev, u16 block, int *region)
-{
-	TreeNode *node = NULL;
-
-	if (*region & SEARCH_REGION_DATA) {
-		node = uffs_TreeFindDataNodeByBlock(dev, block);
-		if (node) {
-			*region &= SEARCH_REGION_DATA;
-			return node;
-		}
-	}
-	if (*region & SEARCH_REGION_FILE) {
-		node = uffs_TreeFindFileNodeByBlock(dev, block);
-		if (node) {
-			*region &= SEARCH_REGION_FILE;
-			return node;
-		}
-	}
-	if (*region & SEARCH_REGION_DIR) {
-		node = uffs_TreeFindDirNodeByBlock(dev, block);
-		if (node) {
-			*region &= SEARCH_REGION_DIR;
-			return node;
-		}
-	}
-	if (*region & SEARCH_REGION_ERASED) {
-		node = uffs_TreeFindErasedNodeByBlock(dev, block);
-		if (node) {
-			*region &= SEARCH_REGION_ERASED;
-			return node;
-		}
-	}
-	if (*region & SEARCH_REGION_BAD) {
-		node = uffs_TreeFindBadNodeByBlock(dev, block);
-		if (node) {
-			*region &= SEARCH_REGION_BAD;
-			return node;
-		}
-	}
-
-	return node;
-}
-
-TreeNode * uffs_TreeFindDirNodeByName(uffs_Device *dev,
-									  const char *name, u32 len,
-									  u16 sum, u16 parent)
-{
-	int i;
-	u16 x;
-	TreeNode *node;
-	struct uffs_TreeSt *tree = &(dev->tree);
-	
-	for (i = 0; i < DIR_NODE_ENTRY_LEN; i++) {
-		x = tree->dir_entry[i];
-		while (x != EMPTY_NODE) {
-			node = FROM_IDX(x, TPOOL(dev));
-			if (node->u.dir.checksum == sum &&
-					node->u.dir.parent == parent) {
-				//read file name from flash, and compare...
-				if (uffs_TreeCompareFileName(dev, name, len, sum,
-											node, UFFS_TYPE_DIR) == U_TRUE) {
-					//Got it!
-					return node;
-				}
-			}
-			x = node->hash_next;
-		}
-	}
-
-	return NULL;
-
-}
-
-UBOOL uffs_CompareFileName(const char *src, int src_len, const char *des)
-{
-	while (src_len-- > 0) {
-		if(*src++ != *des++)
-			return U_FALSE;
-	}
-
-	return U_TRUE;
-}
-
-/** compare [name] with tree [node] represented object name by loading
-	uffs_FileInfo from storage */
-UBOOL uffs_TreeCompareFileName(uffs_Device *dev,
-							   const char *name, u32 len, u16 sum,
-							   TreeNode *node, int type)
-{
-	UBOOL matched = U_FALSE;
-	uffs_FileInfo *fi;
-	uffs_Buf *buf;
-	u16 data_sum;
-
-	buf = uffs_BufGetEx(dev, type, node, 0, 0);
-	if (buf == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "can't get buf !\n ");
-		goto ext;
-	}
-	fi = (uffs_FileInfo *)(buf->data);
-	data_sum = uffs_MakeSum16(fi->name, fi->name_len);
-
-	if (data_sum != sum) {
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"the obj's sum in storage is different with given sum!");
-		goto ext;
-	}
-
-	if (fi->name_len == len) {
-		if(uffs_CompareFileName(fi->name, fi->name_len, name) == U_TRUE) {
-			matched = U_TRUE;
-		}
-	}
-ext:
-	if (buf)
-		uffs_BufPut(dev, buf);
-
-	return matched;
-}
-
-
-/* calculate file length, etc */
-static URET _BuildTreeStepThree(uffs_Device *dev)
-{
-	int i;
-	u16 x;
-	TreeNode *work;
-	TreeNode *node;
-	struct uffs_TreeSt *tree;
-	uffs_Pool *pool;
-	u16 blockSave;
-
-	TreeNode *cache = NULL;
-	u16 cacheSerial = INVALID_UFFS_SERIAL;
-
-	tree = &(dev->tree);
-	pool = TPOOL(dev);
-
-	uffs_Perror(UFFS_MSG_NOISY, "build tree step three");
-
-	for (i = 0; i < DATA_NODE_ENTRY_LEN; i++) {
-		x = tree->data_entry[i];
-		while (x != EMPTY_NODE) {
-			work = FROM_IDX(x, pool);
-			if (work->u.data.parent == cacheSerial) {
-				node = cache;
-			}
-			else {
-				node = uffs_TreeFindFileNode(dev, work->u.data.parent);
-				cache = node;
-				cacheSerial = work->u.data.parent;
-			}
-			if (node == NULL) {
-				x = work->hash_next;
-				//this data block does not belong to any file ?
-				//should be erased.
-				uffs_Perror(UFFS_MSG_NORMAL,
-					"find a orphan data block:%d, "
-					"parent:%d, serial:%d, will be erased!",
-					work->u.data.block,
-					work->u.data.parent, work->u.data.serial);
-
-				uffs_BreakFromEntry(dev, UFFS_TYPE_DATA, work);
-				blockSave = work->u.data.block;
-				work->u.list.block = blockSave;
-				uffs_FlashEraseBlock(dev, blockSave);
-				if (HAVE_BADBLOCK(dev))
-					uffs_BadBlockProcess(dev, work);
-				else
-					uffs_TreeInsertToErasedListTail(dev, work);
-			}
-			else {
-				node->u.file.len += work->u.data.len;
-				x = work->hash_next;
-			}
-		}
-	}
-
-	return U_SUCC;
-}
-
-/** 
- * \brief build tree structure from flash
- * \param[in] dev uffs device
- */
-URET uffs_BuildTree(uffs_Device *dev)
-{
-	URET ret;
-
-	/***** step one: scan all page spares, classify DIR/FILE/DATA nodes,
-		check bad blocks/uncompleted(conflicted) blocks as well *****/
-
-	/* if the disk is big and full filled of data this step could be
-		the most time consuming .... */
-
-	ret = _BuildTreeStepOne(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "build tree step one fail!");
-		return ret;
-	}
-
-	/***** step two: randomize the erased blocks, for ware-leveling purpose *****/
-	/* this step is very fast :) */
-	ret = _BuildTreeStepTwo(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "build tree step two fail!");
-		return ret;
-	}
-
-	/***** step three: check DATA nodes, find orphan nodes and erase them *****/
-	/* if there are a lot of files and disk is fully filled, this step 
-		could be very time consuming ... */
-	ret = _BuildTreeStepThree(dev);
-	if (ret != U_SUCC) {
-		uffs_Perror(UFFS_MSG_SERIOUS, "build tree step three fail!");
-		return ret;
-	}
-	
-	return U_SUCC;
-}
-
-/** 
- * find a free file or dir serial NO
- * \param[in] dev uffs device
- * \return if no free serial found, return #INVALID_UFFS_SERIAL
- */
-u16 uffs_FindFreeFsnSerial(uffs_Device *dev)
-{
-	u16 i;
-	TreeNode *node;
-
-	//TODO!! Do we need a faster serial number generating method?
-	//		 it depends on how often creating files or directories
-
-	for (i = ROOT_DIR_SERIAL + 1; i < MAX_UFFS_FSN; i++) {
-		node = uffs_TreeFindDirNode(dev, i);
-		if (node == NULL) {
-			node = uffs_TreeFindFileNode(dev, i);
-			if (node == NULL) {
-				node = uffs_TreeFindSuspendNode(dev, i);
-				if (node == NULL)
-					return i;
-			}
-		}
-	}
-
-	return INVALID_UFFS_SERIAL;
-}
-
-static TreeNode * uffs_TreeGetErasedNodeNoCheck(uffs_Device *dev)
-{
-	TreeNode *node = NULL;
-	if (dev->tree.erased) {
-		node = dev->tree.erased;
-		dev->tree.erased->u.list.prev = NULL;
-		dev->tree.erased = dev->tree.erased->u.list.next;
-		if(dev->tree.erased == NULL) 
-			dev->tree.erased_tail = NULL;
-		dev->tree.erased_count--;
-	}
-	
-	return node;
-}
-
-TreeNode * uffs_TreeGetErasedNode(uffs_Device *dev)
-{
-	TreeNode *node = uffs_TreeGetErasedNodeNoCheck(dev);
-	u16 block;
-	
-	if (node && node->u.list.u.need_check) {
-		block = node->u.list.block;
-		if (uffs_FlashCheckErasedBlock(dev, block) != U_SUCC) {
-			// Hmm, this block is not fully erased ? erase it immediately.
-			uffs_FlashEraseBlock(dev, block);
-			node->u.list.u.need_check = 0;
-		}
-	}
-	return node;
-}
-
-static void _InsertToEntry(uffs_Device *dev, u16 *entry,
-						   int hash, TreeNode *node)
-{
-	node->hash_next = entry[hash];
-	node->hash_prev = EMPTY_NODE;
-	if (entry[hash] != EMPTY_NODE) {
-		FROM_IDX(entry[hash], TPOOL(dev))->hash_prev = TO_IDX(node, TPOOL(dev));
-	}
-	entry[hash] = TO_IDX(node, TPOOL(dev));
-}
-
-
-/** 
- * break the node from entry
- */
-void uffs_BreakFromEntry(uffs_Device *dev, u8 type, TreeNode *node)
-{
-	u16 *entry;
-	int hash;
-	TreeNode *work;
-
-	switch (type) {
-	case UFFS_TYPE_DIR:
-		hash = GET_DIR_HASH(node->u.dir.serial);
-		entry = &(dev->tree.dir_entry[hash]);
-		break;
-	case UFFS_TYPE_FILE:
-		hash = GET_FILE_HASH(node->u.file.serial);
-		entry = &(dev->tree.file_entry[hash]);
-		break;
-	case UFFS_TYPE_DATA:
-		hash = GET_DATA_HASH(node->u.data.parent, node->u.data.serial);
-		entry = &(dev->tree.data_entry[hash]);
-		break;
-	default:
-		uffs_Perror(UFFS_MSG_SERIOUS, "unknown type when break...");
-		return;
-	}
-
-	if (node->hash_prev != EMPTY_NODE) {
-		work = FROM_IDX(node->hash_prev, &(dev->mem.tree_pool));
-		work->hash_next = node->hash_next;
-	}
-	if (node->hash_next != EMPTY_NODE) {
-		work = FROM_IDX(node->hash_next, &(dev->mem.tree_pool));
-		work->hash_prev = node->hash_prev;
-	}
-
-	if (*entry == TO_IDX(node, &(dev->mem.tree_pool))) {
-		*entry = node->hash_next;
-	}
-}
-
-static void uffs_InsertToFileEntry(uffs_Device *dev, TreeNode *node)
-{
-	_InsertToEntry(dev, dev->tree.file_entry,
-					GET_FILE_HASH(node->u.file.serial),
-					node);
-}
-
-static void uffs_InsertToDirEntry(uffs_Device *dev, TreeNode *node)
-{
-	_InsertToEntry(dev, dev->tree.dir_entry,
-					GET_DIR_HASH(node->u.dir.serial),
-					node);
-}
-
-static void uffs_InsertToDataEntry(uffs_Device *dev, TreeNode *node)
-{
-	_InsertToEntry(dev, dev->tree.data_entry,
-					GET_DATA_HASH(node->u.data.parent, node->u.data.serial),
-					node);
-}
-
-void uffs_InsertToErasedListHead(uffs_Device *dev, TreeNode *node)
-{
-	struct uffs_TreeSt *tree;
-	tree = &(dev->tree);
-
-	node->u.list.next = tree->erased;
-	node->u.list.prev = NULL;
-
-	if (tree->erased) {
-		tree->erased->u.list.prev = node;
-	}
-
-	tree->erased = node;
-	if (node->u.list.next == tree->erased_tail) {
-		tree->erased_tail = node;
-	}
-	tree->erased_count++;
-}
-
-/**
- * insert node to erased list.
- * \param need_check: 0 - no need to check later
- *                    1 - need to check later
- *                  < 0 - keep 'node->u.list.need_check' value
- */
-void uffs_TreeInsertToErasedListTailEx(uffs_Device *dev, TreeNode *node, int need_check)
-{
-	struct uffs_TreeSt *tree;
-	tree = &(dev->tree);
-	
-	if (need_check >= 0)
-		node->u.list.u.need_check = need_check;
-	
-	node->u.list.next = NULL;
-	node->u.list.prev = tree->erased_tail;
-	if (tree->erased_tail) {
-		tree->erased_tail->u.list.next = node;
-	}
-
-	tree->erased_tail = node;
-	if(tree->erased == NULL) {
-		tree->erased = node;
-	}
-	tree->erased_count++;
-}
-
-void uffs_TreeInsertToErasedListTail(uffs_Device *dev, TreeNode *node)
-{
-	// this function is called after the block is erased, so don't need to check.
-	uffs_TreeInsertToErasedListTailEx(dev, node, 0);
-}
-
-void uffs_TreeInsertToBadBlockList(uffs_Device *dev, TreeNode *node)
-{
-	struct uffs_TreeSt *tree;
-
-	tree = &(dev->tree);
-	node->u.list.prev = NULL;
-	node->u.list.next = tree->bad;
-
-	if (tree->bad) {
-		tree->bad->u.list.prev = node;
-	}
-
-	tree->bad = node;
-	tree->bad_count++;
-}
-
-/** 
- * set tree node block value
- */
-void uffs_TreeSetNodeBlock(u8 type, TreeNode *node, u16 block)
-{
-	switch (type) {
-	case UFFS_TYPE_FILE:
-		node->u.file.block = block;
-		break;
-	case UFFS_TYPE_DIR:
-		node->u.dir.block = block;
-		break;
-	case UFFS_TYPE_DATA:
-		node->u.data.block = block;
-		break;
-	}
-}
-
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_utils.c b/components/dfs/filesystems/uffs/src/uffs/uffs_utils.c
deleted file mode 100644
index bf3ea3b6d1..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_utils.c
+++ /dev/null
@@ -1,402 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_utils.c
- * \brief utilities of uffs
- * \author Ricky Zheng, created 12th May, 2005
- */
-#include "uffs_config.h"
-#include "uffs/uffs_device.h"
-#include "uffs/uffs_utils.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_version.h"
-#include "uffs/uffs_badblock.h"
-#include "uffs/uffs_fd.h"
-#include "uffs/uffs_fs.h"
-
-#include <stdio.h>
-#include <string.h>
-
-#define PFX "util: "
-
-#define SPOOL(dev) &((dev)->mem.spare_pool)
-
-#ifdef CONFIG_USE_GLOBAL_FS_LOCK
-static OSSEM _global_lock = OSSEM_NOT_INITED;
-
-/* global file system lock */
-void uffs_InitGlobalFsLock(void)
-{
-	uffs_SemCreate(&_global_lock);
-}
-
-void uffs_ReleaseGlobalFsLock(void)
-{
-	uffs_SemDelete(&_global_lock);
-}
-
-void uffs_GlobalFsLockLock(void)
-{
-	uffs_SemWait(_global_lock);
-}
-
-void uffs_GlobalFsLockUnlock(void)
-{
-	uffs_SemSignal(_global_lock);
-}
-
-#else
-
-void uffs_InitGlobalFsLock(void) {}
-void uffs_ReleaseGlobalFsLock(void) {}
-void uffs_GlobalFsLockLock(void) {}
-void uffs_GlobalFsLockUnlock(void) {}
-
-#endif
-
-
-#ifdef CONFIG_ENABLE_BAD_BLOCK_VERIFY
-static void _ForceFormatAndCheckBlock(uffs_Device *dev, int block)
-{
-	int i, j;
-	uffs_Buf *buf = NULL;
-	UBOOL bad = U_TRUE;
-	URET ret;
-	struct uffs_FlashOpsSt *ops = dev->ops;
-	struct uffs_TagStoreSt ts;
-	u8 *spare = NULL;
-
-	buf = uffs_BufClone(dev, NULL);
-	if (buf == NULL) {
-		uffs_Perror(UFFS_MSG_SERIOUS,
-					"Alloc page buffer fail ! Format stoped.");
-		goto ext;
-	}
-
-	spare = (u8 *)uffs_PoolGet(SPOOL(dev));
-	if (spare == NULL)
-		goto ext;
-
-	//step 1: Erase, fully fill with 0x0, and check
-	ret = uffs_FlashEraseBlock(dev, block);
-	if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-		goto bad_out;
-
-	memset(buf->header, 0, dev->com.pg_size);
-	memset(&ts, 0, sizeof(ts));
-	memset(spare, 0, dev->attr->spare_size);
-
-	for (i = 0; i < dev->attr->pages_per_block; i++) {
-		if (ops->WritePageWithLayout)
-			ret = ops->WritePageWithLayout(dev, block, i, buf->header, dev->com.pg_size, NULL, &ts);
-		else
-			ret = ops->WritePage(dev, block, i, buf->header, dev->com.pg_size, spare, dev->attr->spare_size);
-
-		if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-			goto bad_out;
-	}
-	for (i = 0; i < dev->attr->pages_per_block; i++) {
-		memset(buf->header, 0xFF, dev->com.pg_size);
-		memset(&ts, 0xFF, sizeof(ts));
-		memset(spare, 0xFF, dev->attr->spare_size);
-
-		if (ops->ReadPageWithLayout) {
-			ret = ops->ReadPageWithLayout(dev, block, i, buf->header, dev->com.pg_size, NULL, &ts, NULL);
-			if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-				goto bad_out;
-			for (j = 0; j < dev->com.pg_size; j++)
-				if (buf->header[j] != 0)
-					goto bad_out;
-			for (j = 0; j < sizeof(ts); j++)
-				if (((u8 *)&ts)[j] != 0)
-					goto bad_out;
-		}
-		else {
-			ret = ops->ReadPage(dev, block, i, buf->header, dev->com.pg_size, NULL, spare, dev->attr->spare_size);
-			if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-				goto bad_out;
-			for (j = 0; j < dev->com.pg_size; j++)
-				if (buf->header[j] != 0)
-					goto bad_out;
-			for (j = 0; j < dev->attr->spare_size; j++)
-				if (spare[j] != 0)
-					goto bad_out;
-		}
-	}
-
-	//step 2: Erase, and check
-	ret = uffs_FlashEraseBlock(dev, block);
-	if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-		goto bad_out;
-
-	for (i = 0; i < dev->attr->pages_per_block; i++) {
-		memset(buf->header, 0, dev->com.pg_size);
-		memset(&ts, 0, sizeof(ts));
-		memset(spare, 0, dev->attr->spare_size);
-
-		if (ops->ReadPageWithLayout) {
-			ret = ops->ReadPageWithLayout(dev, block, i, buf->header, dev->com.pg_size, NULL, &ts, NULL);
-			if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-				goto bad_out;
-			for (j = 0; j < dev->com.pg_size; j++)
-				if (buf->header[j] != 0xFF)
-					goto bad_out;
-			for (j = 0; j < sizeof(ts); j++)
-				if (((u8 *)&ts)[j] != 0xFF)
-					goto bad_out;
-		}
-		else {
-			ret = ops->ReadPage(dev, block, i, buf->header, dev->com.pg_size, NULL, spare, dev->attr->spare_size);
-			if (UFFS_FLASH_IS_BAD_BLOCK(ret))
-				goto bad_out;
-			for (j = 0; j < dev->com.pg_size; j++)
-				if (buf->header[j] != 0xFF)
-					goto bad_out;
-			for (j = 0; j < dev->attr->spare_size; j++)
-				if (spare[j] != 0xFF)
-					goto bad_out;
-		}
-	}
-
-	// format succ
-	bad = U_FALSE;
-
-bad_out:
-	if (bad == U_TRUE)
-		uffs_FlashMarkBadBlock(dev, block);
-ext:
-	if (buf)
-		uffs_BufFreeClone(dev, buf);
-
-	if (spare)
-		uffs_PoolPut(SPOOL(dev), spare);
-
-	return;
-}
-#endif
-
-
-
-URET uffs_FormatDevice(uffs_Device *dev, UBOOL force)
-{
-	u16 i, slot;
-	URET ret = U_SUCC;
-	
-	if (dev == NULL)
-		return U_FAIL;
-
-	if (dev->ops == NULL) 
-		return U_FAIL;
-
-	uffs_GlobalFsLockLock();
-
-	ret = uffs_BufFlushAll(dev);
-
-	if (dev->ref_count > 1 && !force) {
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"can't format when dev->ref_count = %d",
-					dev->ref_count);
-		ret = U_FAIL;
-	}
-
-	if (ret == U_SUCC && force) {
-		uffs_DirEntryBufPutAll(dev);
-		uffs_PutAllObjectBuf(dev);
-		uffs_FdSignatureIncrease();
-	}
-
-	if (ret == U_SUCC &&
-		uffs_BufIsAllFree(dev) == U_FALSE &&
-		!force)
-	{
-		uffs_Perror(UFFS_MSG_NORMAL, "some page still in used!");
-		ret = U_FAIL;
-	}
-
-	if (!force) {
-		for (slot = 0; ret == U_SUCC && slot < dev->cfg.dirty_groups; slot++) {
-			if (dev->buf.dirtyGroup[slot].count > 0) {
-				uffs_Perror(UFFS_MSG_SERIOUS, "there still have dirty pages!");
-				ret = U_FAIL;
-			}
-		}
-	}
-
-	if (ret == U_SUCC)
-		uffs_BufSetAllEmpty(dev);
-
-
-	if (ret == U_SUCC && uffs_BlockInfoIsAllFree(dev) == U_FALSE && !force) {
-		uffs_Perror(UFFS_MSG_NORMAL,
-					"there still have block info cache ? fail to format");
-		ret = U_FAIL;
-	}
-
-	if (ret == U_SUCC)
-		uffs_BlockInfoExpireAll(dev);
-
-	for (i = dev->par.start; ret == U_SUCC && i <= dev->par.end; i++) {
-		if (uffs_FlashIsBadBlock(dev, i) == U_FALSE) {
-			uffs_FlashEraseBlock(dev, i);
-			if (HAVE_BADBLOCK(dev))
-				uffs_BadBlockProcess(dev, NULL);
-		}
-		else {
-#ifdef CONFIG_ENABLE_BAD_BLOCK_VERIFY
-			_ForceFormatAndCheckBlock(dev, i);
-#endif
-		}
-	}
-
-	if (ret == U_SUCC && uffs_TreeRelease(dev) == U_FAIL) {
-		ret = U_FAIL;
-	}
-
-	if (ret == U_SUCC && uffs_TreeInit(dev) == U_FAIL) {
-		ret = U_FAIL;
-	}
-
-	if (ret == U_SUCC && uffs_BuildTree(dev) == U_FAIL) {
-		ret = U_FAIL;
-	}
-
-	uffs_GlobalFsLockUnlock();
-
-	return ret;
-}
-
-static const char * GetTagName(struct uffs_TagStoreSt *s)
-{
-	const char *name = "UNKNOWN";
-	struct uffs_NodeTypeNameMapSt maps[] = UFFS_TYPE_NAME_MAP;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(maps); i++) {
-		if (s->type == maps[i].type)
-			name = maps[i].name;
-	}
-
-	return name;
-}
-
-static void DumpBufHex(struct uffs_DeviceSt *dev, const u8* buf, int len, dump_msg_cb *dump)
-{
-	int i;
-	for (i = 0; i < len; i++)
-		dump(dev, "%02X ", buf[i]);
-}
-
-// return -1 if do not need to read next tag
-static int DumpTag(struct uffs_DeviceSt *dev, int block, int page, uffs_Tags *tag, dump_msg_cb *dump)
-{
-	struct uffs_TagStoreSt *s = &tag->s;
-	struct uffs_MiniHeaderSt header;
-	URET ret;
-
-	if (!TAG_IS_DIRTY(tag)) {
-		// is a clean page ?
-		ret = uffs_LoadMiniHeader(dev, block, page, &header);
-		if (ret == U_FAIL) {
-			dump(dev, "Fail to load mini header from page 0\n");
-		}
-		else {
-			if (header.status == 0xFF)
-				dump(dev, "page %d CLEAN\n", page);
-			else {
-				dump(dev, "page %d NOT clean ! header: ", page);
-				DumpBufHex(dev, (u8 *)&header, sizeof(header), dump);
-				dump(dev, ", tag: ");
-				DumpBufHex(dev, (u8 *)s, sizeof(struct uffs_TagStoreSt), dump);
-				dump(dev, "\n");
-			}
-		}
-		return -1;
-	}
-	
-	dump(dev, " - page %2d/%2d %s %d/%d len%4d\n", page, s->page_id, GetTagName(s), s->serial, s->parent, s->data_len);
-	
-	return 0;
-}
-
-static void DumpBlock(struct uffs_DeviceSt *dev, int block, dump_msg_cb *dump)
-{
-	int i;
-	struct uffs_StorageAttrSt *attr = dev->attr;
-	uffs_Tags tag;
-	URET ret;
-
-	dump(dev, "--- Block %d ---\n", block);
-
-	if (uffs_FlashIsBadBlock(dev, block)) {
-		dump(dev, "Bad block\n\n");
-		return;
-	}
-
-	for (i = 0; i < attr->pages_per_block; i++) {
-
-		memset(&tag, 0xFF, sizeof(tag));
-		ret = uffs_FlashReadPageTag(dev, block, i, &tag);
-
-		if (ret == UFFS_FLASH_IO_ERR) {
-			dump(dev, "page %d tag I/O error\n", i);
-			continue;
-		}
-		else if (ret == UFFS_FLASH_ECC_FAIL) {
-			dump(dev, "page %d tag ECC error\n", i);
-			continue;
-		}
-		else if (ret == UFFS_FLASH_NO_ERR || ret == UFFS_FLASH_ECC_OK) {
-			if (ret == UFFS_FLASH_ECC_OK)
-				dump(dev, "page %d tag has bit flip, corrected by ECC\n", i);
-
-			if (DumpTag(dev, block, i, &tag, dump) == 0)
-				continue;
-			else
-				break;
-		}
-		else {
-			dump(dev, "read page %d tag return unexpected: %d\n", i, ret);
-			continue;
-		}
-	}
-	dump(dev, "\n");
-}
-
-void uffs_DumpDevice(struct uffs_DeviceSt *dev, dump_msg_cb *dump)
-{
-	int i;
-	for (i = dev->par.start; i <= dev->par.end; i++) {
-		DumpBlock(dev, i, dump);
-	}	
-}
diff --git a/components/dfs/filesystems/uffs/src/uffs/uffs_version.c b/components/dfs/filesystems/uffs/src/uffs/uffs_version.c
deleted file mode 100644
index e6cd98e3f3..0000000000
--- a/components/dfs/filesystems/uffs/src/uffs/uffs_version.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_version.c
- * \brief uffs version information
- * \author Ricky Zheng, created 8th May, 2005
- */
-
-#include "uffs_config.h"
-#include "uffs/uffs_version.h"
-
-#include <stdio.h>
-#define PFX "ver : "
-
-
-static char version_buf[16];
-
-const char * uffs_Version2Str(int ver)
-{
-	sprintf(version_buf, "%1d.%02d.%04d",
-			(ver & 0xff000000) >> 24, (ver & 0xff0000) >> 16, (ver & 0xffff));
-	return version_buf;
-}
-
-int uffs_GetVersion(void)
-{
-	return UFFS_VERSION;
-}
-
-int uffs_GetMainVersion(int ver)
-{
-	return (ver & 0xff000000) >> 24;
-}
-
-int uffs_GetMinorVersion(int ver)
-{
-	return (ver & 0xff0000) >> 16;
-}
-
-int uffs_GetTrivialVersion(int ver)
-{
-	return (ver & 0xff00) >> 8;
-}
\ No newline at end of file
diff --git a/components/dfs/filesystems/uffs/src/utils/CMakeLists.txt b/components/dfs/filesystems/uffs/src/utils/CMakeLists.txt
deleted file mode 100644
index 37660d6f47..0000000000
--- a/components/dfs/filesystems/uffs/src/utils/CMakeLists.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-IF (UNIX)
-	INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/posix)
-ENDIF()
-IF (WIN32)
-	INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/platform/win32)
-ENDIF()
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/inc)
-INCLUDE_DIRECTORIES(${uffs_SOURCE_DIR}/src/emu)
-
-LINK_DIRECTORIES(${uffs_BINARY_DIR}/src/emu)
-LINK_DIRECTORIES(${uffs_BINARY_DIR}/src/uffs)
-
-SET(mkuffs_SRCS mkuffs.c)
-ADD_EXECUTABLE(mkuffs ${mkuffs_SRCS})
-TARGET_LINK_LIBRARIES(mkuffs emu uffs emu platform apitest_server)
-IF (UNIX)
-	TARGET_LINK_LIBRARIES(mkuffs pthread)
-ENDIF ()
-
-
diff --git a/components/dfs/filesystems/uffs/src/utils/mkuffs.c b/components/dfs/filesystems/uffs/src/utils/mkuffs.c
deleted file mode 100644
index 3f92069fe2..0000000000
--- a/components/dfs/filesystems/uffs/src/utils/mkuffs.c
+++ /dev/null
@@ -1,493 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_test.c
- * \brief uffs test main entry
- * \author Ricky Zheng
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include "uffs_config.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-#include "uffs/uffs_fs.h"
-#include "uffs/uffs_utils.h"
-#include "uffs/uffs_core.h"
-#include "uffs/uffs_mtb.h"
-
-#include "cmdline.h"
-#include "uffs_fileem.h"
-
-#define PFX NULL
-#define MSG(msg,...) uffs_PerrorRaw(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-#define MSGLN(msg,...) uffs_Perror(UFFS_MSG_NORMAL, msg, ## __VA_ARGS__)
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR > 0
-int main()
-{
-	MSGLN("Static memory allocator is not supported.");
-	return 0;
-}
-#else
-
-extern struct cli_commandset * get_helper_cmds(void);
-extern struct cli_commandset * get_test_cmds(void);
-extern void femu_init_uffs_device(uffs_Device *dev);
-
-static int conf_command_line_mode = 0;
-static int conf_verbose_mode = 0;
-
-static int conf_exec_script = 0;
-static char script_command[256];
-
-#define DEFAULT_EMU_FILENAME "uffsemfile.bin"
-const char * conf_emu_filename = DEFAULT_EMU_FILENAME;
-
-
-/* default basic parameters of the NAND device */
-#define PAGES_PER_BLOCK_DEFAULT			32
-#define PAGE_DATA_SIZE_DEFAULT			512
-#define PAGE_SPARE_SIZE_DEFAULT			16
-#define STATUS_BYTE_OFFSET_DEFAULT		5
-#define TOTAL_BLOCKS_DEFAULT			128
-#define ECC_OPTION_DEFAULT				UFFS_ECC_SOFT
-//#define ECC_OPTION_DEFAULT			UFFS_ECC_HW
-//#define ECC_OPTION_DEFAULT			UFFS_ECC_HW_AUTO
-
-#define MAX_MOUNT_TABLES		10
-#define MAX_MOUNT_POINT_NAME	32
-
-static int conf_pages_per_block = PAGES_PER_BLOCK_DEFAULT;
-static int conf_page_data_size = PAGE_DATA_SIZE_DEFAULT;
-static int conf_page_spare_size = PAGE_SPARE_SIZE_DEFAULT;
-static int conf_status_byte_offset = STATUS_BYTE_OFFSET_DEFAULT;
-static int conf_total_blocks = TOTAL_BLOCKS_DEFAULT;
-static int conf_ecc_option = ECC_OPTION_DEFAULT;
-static int conf_ecc_size = 0; // 0 - Let UFFS choose the size
-
-static const char *g_ecc_option_strings[] = UFFS_ECC_OPTION_STRING;
-
-static struct uffs_MountTableEntrySt conf_mounts[MAX_MOUNT_TABLES] = {{0}};
-static uffs_Device conf_devices[MAX_MOUNT_TABLES] = {{0}};
-static char mount_point_name[MAX_MOUNT_TABLES][MAX_MOUNT_POINT_NAME] = {{0}};
-
-static void setup_storage(struct uffs_StorageAttrSt *attr)
-{
-	attr->total_blocks = conf_total_blocks;				/* total blocks */
-	attr->page_data_size = conf_page_data_size;			/* page data size */
-	attr->spare_size = conf_page_spare_size;			/* page spare size */
-	attr->pages_per_block = conf_pages_per_block;		/* pages per block */
-
-	attr->block_status_offs = conf_status_byte_offset;	/* block status offset is 5th byte in spare */
-	attr->ecc_opt = conf_ecc_option;					/* ECC option */
-	attr->ecc_size = conf_ecc_size;						/* ECC size */
-	attr->layout_opt = UFFS_LAYOUT_UFFS;				/* let UFFS handle layout */
-}
-
-
-static void setup_device(uffs_Device *dev)
-{
-	dev->Init = femu_InitDevice;
-	dev->Release = femu_ReleaseDevice;
-	dev->attr = femu_GetStorage();
-}
-
-static void setup_emu_private(uffs_FileEmu *emu)
-{
-	memset(emu, 0, sizeof(uffs_FileEmu));
-	emu->emu_filename = conf_emu_filename;
-}
-
-static int init_uffs_fs(void)
-{
-	static int bIsFileSystemInited = 0;
-	struct uffs_MountTableEntrySt *mtbl = &(conf_mounts[0]);
-	struct uffs_ConfigSt cfg = {
-		0,			// bc_caches - default
-		0,			// page_buffers - default
-		0,			// dirty_pages - default
-		0,			// dirty_groups - default
-		0,			// reserved_free_blocks - default
-	};
-
-	if (bIsFileSystemInited)
-		return -4;
-
-	bIsFileSystemInited = 1;
-
-	while (mtbl->dev) {
-
-		memcpy(&mtbl->dev->cfg, &cfg, sizeof(struct uffs_ConfigSt));
-
-#if CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR > 0
-		uffs_MemSetupSystemAllocator(&mtbl->dev->mem);
-#endif
-		setup_device(mtbl->dev);
-		uffs_RegisterMountTable(mtbl);
-		mtbl++;
-	}
-
-	// mount partitions
-	for (mtbl = &(conf_mounts[0]); mtbl->mount != NULL; mtbl++) {
-		uffs_Mount(mtbl->mount);
-	}
-
-	return uffs_InitFileSystemObjects() == U_SUCC ? 0 : -1;
-}
-
-static int release_uffs_fs(void)
-{
-	int ret = 0;
-	uffs_MountTable *mtb;
-
-	for (mtb = &(conf_mounts[0]); ret == 0 && mtb->mount != NULL; mtb++) {
-		uffs_UnMount(mtb->mount);
-	}
-
-	if (ret == 0)
-		ret = (uffs_ReleaseFileSystemObjects() == U_SUCC ? 0 : -1);
-
-	return ret;
-}
-
-/* mount point arg: /sys/,100,-1 */
-static int parse_mount_point(char *arg, int m_idx)
-{
-	int start = 0, end = -1;
-	char *p = arg;
-	struct uffs_MountTableEntrySt *mtbl = &(conf_mounts[m_idx]);
-
-	while(*p && *p != ',' && *p != ' ' && *p != '\t')
-		p++;
-
-	if (*p == 0 || p == arg) 
-		return -1;
-
-	mtbl->mount = &(mount_point_name[m_idx][0]);
-	memcpy((char *)mtbl->mount, arg, p - arg);
-	((char *)(mtbl->mount))[p - arg] = 0;
-
-	p++;
-	arg = p;
-	while(*p && *p != ',' && *p != ' ' && *p != '\t')
-		p++;
-
-	if (p != arg) {
-		if (sscanf(arg, "%i", &start) < 1) 
-			return -1;
-		p++;
-		arg = p;
-
-		while(*p && *p != ',' && *p != ' ' && *p != '\t')
-			p++;
-
-		if (p != arg) {
-			if (sscanf(arg, "%i", &end) < 1)
-				return -1;
-		}
-	}
-	mtbl->start_block = start;
-	mtbl->end_block = end;
-	mtbl->dev = &(conf_devices[m_idx]);
-
-	return 0;
-}
-
-static int parse_options(int argc, char *argv[])
-{
-    int iarg;
-    int usage = 0;
-	int m_idx = 0;
-    static char em_file[128];
-	int i;
-
-    for (iarg = 1; iarg < argc && !usage; iarg++) {
-        const char *arg = argv[iarg];
-        
-        if (arg[0] == '-') {
-            if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) {
-                usage++;
-            }
-            else if (!strcmp(arg, "-f") || !strcmp(arg, "--file")) {
-                if (++iarg >= argc)
-					usage++;
-				else {
-					strcpy(em_file, argv[iarg]);
-					conf_emu_filename = (const char *)em_file;
-				}
-            }
-            else if (!strcmp(arg, "-c") || !strcmp(arg, "--command-line")) {
-				conf_command_line_mode = 1;
-            }
-            else if (!strcmp(arg, "-p") || !strcmp(arg, "--page-size")) {
-                if (++iarg >= argc) 
-					usage++;
-                else if (sscanf(argv[iarg], "%i", &conf_page_data_size) < 1)
-					usage++;
-				if (conf_page_data_size <= 0 || conf_page_data_size > UFFS_MAX_PAGE_SIZE) {
-					MSGLN("ERROR: Invalid page data size");
-					usage++;
-				}
-            }
-            else if (!strcmp(arg, "-s") || !strcmp(arg, "--spare-size")) {
-                if (++iarg >= argc) 
-					usage++;
-                else if (sscanf(argv[iarg], "%i", &conf_page_spare_size) < 1) 
-					usage++;
-				if (conf_page_spare_size < sizeof(struct uffs_TagStoreSt) + 1 ||
-					(conf_page_spare_size % 4) != 0 || conf_page_spare_size > UFFS_MAX_SPARE_SIZE) {
-					MSGLN("ERROR: Invalid spare size");
-					usage++;
-				}
-            }
-            else if (!strcmp(arg, "-o") || !strcmp(arg, "--status-offset")) {
-                if (++iarg >= argc) 
-					usage++;
-                else if (sscanf(argv[iarg], "%i", &conf_status_byte_offset) < 1)
-					usage++;
-				if (conf_status_byte_offset < 0)
-					usage++;
-            }
-            else if (!strcmp(arg, "-b") || !strcmp(arg, "--block-pages")) {
-                if (++iarg >= argc)
-					usage++;
-                else if (sscanf(argv[iarg], "%i", &conf_pages_per_block) < 1)
-					usage++;
-				if (conf_pages_per_block < 2)
-					usage++;
-            }
-            else if (!strcmp(arg, "-t") || !strcmp(arg, "--total-blocks")) {
-                if (++iarg >= argc)
-					usage++;
-                else if (sscanf(argv[iarg], "%i", &conf_total_blocks) < 1)
-					usage++;
-				if (conf_total_blocks < 2)
-					usage++;
-            }
-            else if (!strcmp(arg, "-v") || !strcmp(arg, "--verbose")) {
-				conf_verbose_mode++;
-            }
-            else if (!strcmp(arg, "-m") || !strcmp(arg, "--mount")) {
-				if (++iarg > argc)
-					usage++;
-				else if (parse_mount_point(argv[iarg], m_idx) < 0)
-					usage++;
-				m_idx++;
-            }
-			else if (!strcmp(arg, "-e") || !strcmp(arg, "--exec")) {
-				if (++iarg > argc)
-					usage++;
-				else {
-					sprintf(script_command, "script %s", argv[iarg]);
-					conf_exec_script = 1;
-				}
-			}
-			else if (!strcmp(arg, "-x") || !strcmp(arg, "--ecc-option")) {
-				if (++iarg > argc)
-					usage++;
-				else {
-					for (i = 0; i < ARRAY_SIZE(g_ecc_option_strings); i++) {
-						if (!strcmp(argv[iarg], g_ecc_option_strings[i])) {
-							conf_ecc_option = i;
-							break;
-						}
-					}
-					if (i == ARRAY_SIZE(g_ecc_option_strings)) {
-						MSGLN("ERROR: Invalid ECC option");
-						usage++;
-					}
-				}
-			}
-			else if (!strcmp(arg, "-z") || !strcmp(arg, "--ecc-size")) {
-                if (++iarg >= argc)
-					usage++;
-                else if (sscanf(argv[iarg], "%i", &conf_ecc_size) < 1)
-					usage++;
-				if (conf_ecc_size < 0 || conf_ecc_size > UFFS_MAX_ECC_SIZE) {
-					MSGLN("ERROR: Invalid ecc size");
-					usage++;
-				}
-			}
-            else {
-                MSGLN("Unknown option: %s, try %s --help", arg, argv[0]);
-				return -1;
-            }
-        }
-        else {
-            MSGLN("Unexpected parameter: %s, try %s --help", arg, argv[0]);
-			return -1;
-        }
-    }
-    
-    if (usage) {
-        MSGLN("Usage: %s [options]", argv[0]);
-        MSGLN("  -h  --help                                show usage");
-        MSGLN("  -c  --command-line                        command line mode");
-        MSGLN("  -v  --verbose                             verbose mode");
-        MSGLN("  -f  --file           <file>               uffs image file");
-        MSGLN("  -p  --page-size      <n>                  page data size, default=%d", PAGE_DATA_SIZE_DEFAULT);
-        MSGLN("  -s  --spare-size     <n>                  page spare size, default=%d", PAGE_SPARE_SIZE_DEFAULT);
-		MSGLN("  -o  --status-offset  <n>                  status byte offset, default=%d", STATUS_BYTE_OFFSET_DEFAULT);
-        MSGLN("  -b  --block-pages    <n>                  pages per block, default=%d", PAGES_PER_BLOCK_DEFAULT);
-        MSGLN("  -t  --total-blocks   <n>                  total blocks");
-        MSGLN("  -m  --mount          <mount_point,start,end> , for example: -m /,0,-1");
-		MSGLN("  -x  --ecc-option     <none|soft|hw|auto>  ECC option, default=%s", g_ecc_option_strings[ECC_OPTION_DEFAULT]);
-		MSGLN("  -z  --ecc-size       <n>                  ECC size, default=0 (auto)");
-        MSGLN("  -e  --exec           <file>               execute a script file");
-        MSGLN("");
-
-        return -1;
-    }
-
-	if (m_idx == 0) {
-		// if not given mount information, use default ('/' for whole partition)
-		parse_mount_point("/,0,-1", 0);
-	}
-
-	return 0;
-}
-
-
-static void print_mount_points(void)
-{
-	struct uffs_MountTableEntrySt *m;
-
-	m = &(conf_mounts[0]);
-	while (m->dev) {
-		MSGLN ("Mount point: %s, start: %d, end: %d", m->mount, m->start_block, m->end_block);
-		m++;
-	}
-}
-
-static void print_params(void)
-{
-	MSGLN("Parameters summary:");
-	MSGLN("  uffs image file: %s", conf_emu_filename);
-	MSGLN("  page size: %d", conf_page_data_size);
-	MSGLN("  page spare size: %d", conf_page_spare_size);
-	MSGLN("  pages per block: %d", conf_pages_per_block);
-	MSGLN("  total blocks: %d", conf_total_blocks);
-	MSGLN("  ecc option: %d (%s)", conf_ecc_option, g_ecc_option_strings[conf_ecc_option]);
-	MSGLN("  ecc size: %d%s", conf_ecc_size, conf_ecc_size == 0 ? " (auto)" : "");
-	MSGLN("  bad block status offset: %d", conf_status_byte_offset);
-	MSGLN("");
-}
-
-#ifdef UNIX
-#include <execinfo.h>
-#include <signal.h>
-void crash_handler(int sig)
-{
-  void *array[10];
-  size_t size;
-
-  // get void*'s for all entries on the stack
-  size = backtrace(array, 10);
-
-  // print out all the frames to stderr
-  fprintf(stderr, "Error: signal %d:\n", sig);
-  backtrace_symbols_fd(array, size, 2);
-  exit(1);
-}
-#endif
-
-int main(int argc, char *argv[])
-{
-	int ret;
-
-#ifdef UNIX
-	signal(SIGSEGV, crash_handler);
-#endif
-
-	uffs_SetupDebugOutput(); 	// setup debug output as early as possible
-
-	if (parse_options(argc, argv) < 0) {
-		return -1;
-	}
-	
-	if (conf_verbose_mode) {
-		#if 1
-		MSGLN("Internal data structure size:");
-		MSGLN("  TreeNode: %d", sizeof(TreeNode));
-		MSGLN("  struct BlockListSt: %d", sizeof(struct BlockListSt));
-		MSGLN("  struct DirhSt: %d", sizeof(struct DirhSt));
-		MSGLN("  struct FilehSt: %d", sizeof(struct FilehSt));
-		MSGLN("  struct FdataSt: %d", sizeof(struct FdataSt));
-		MSGLN("  struct uffs_TagStoreSt: %d", sizeof(struct uffs_TagStoreSt));
-		MSGLN("  uffs_Buf: %d", sizeof(uffs_Buf));
-		MSGLN("  struct uffs_BlockInfoSt: %d", sizeof(struct uffs_BlockInfoSt));
-		MSGLN("");
-		#endif
-		print_params();
-		print_mount_points();
-	}
-
-	// setup file emulator storage with parameters from command line
-	setup_storage(femu_GetStorage());
-
-	// setup file emulator private data
-	setup_emu_private(femu_GetPrivate());
-
-	ret = init_uffs_fs();
-	if (ret != 0) {
-		MSGLN ("Init file system fail: %d", ret);
-		return -1;
-	}
-
-	cli_add_commandset(get_helper_cmds());
-	cli_add_commandset(get_test_cmds());
-	if (conf_command_line_mode) {
-		if (conf_exec_script) {
-			cli_interpret(script_command);
-		}
-		cli_main_entry();
-	}
-	else {
-		if (conf_exec_script) {
-			cli_interpret(script_command);
-		}
-		else {
-			cli_main_entry();
-		}
-	}
-
-	release_uffs_fs();
-
-	return 0;
-}
-#endif
-
-
-
diff --git a/components/dfs/filesystems/uffs/tools/chomp_uffs_perror.rb b/components/dfs/filesystems/uffs/tools/chomp_uffs_perror.rb
deleted file mode 100644
index e8b9460ae5..0000000000
--- a/components/dfs/filesystems/uffs/tools/chomp_uffs_perror.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-#usage:
-#	find . -name "*.c" | xargs /usr/bin/ruby path/to/chomp_uffs_perror.rb
-#
-
-ARGV.each do |file|
-	lines = []
-	count = 0
-	File.open(file).each_line do |line|
-		if line =~ /^(.*uffs_Perror.+)PFX(\s*".+)$/
-			lines << ($1 + $2)
-			count += 1
-                        #puts ($1 + $2)
-		else
-			lines << line
-		end
-	end
-	if count > 0
-		f = File.open(file, "w")
-		lines.each do |s|
-			f.puts s
-		end
-		f.close
-		puts "Fix file #{file}, modified lines: #{count}"
-	end
-end
diff --git a/components/dfs/filesystems/uffs/tools/format_code.rb b/components/dfs/filesystems/uffs/tools/format_code.rb
deleted file mode 100644
index 7847db236a..0000000000
--- a/components/dfs/filesystems/uffs/tools/format_code.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-#usage:
-#	find . -name "*.c" | xargs /usr/bin/ruby path/to/format_code.rb
-#
-
-ARGV.each do |file|
-	lines = []
-	count = 0
-	File.open(file).each_line do |line|
-		if line =~ /^(.*)\s$/
-			lines << $1.dup
-			count += 1
-		else
-			lines << line
-		end
-	end
-	if count > 0
-		f = File.open(file, "w")
-		lines.each do |s|
-			f.puts s
-		end
-		f.close
-		puts "Fix file #{file}, modified lines: #{count}"
-	end
-end
diff --git a/components/dfs/filesystems/uffs/tools/make_package.sh b/components/dfs/filesystems/uffs/tools/make_package.sh
deleted file mode 100644
index a78c3fa2fd..0000000000
--- a/components/dfs/filesystems/uffs/tools/make_package.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh
-
-git ls-tree --name-only --full-name -r $1 | xargs tar -jcvf uffs-$1.tar.bz2
\ No newline at end of file
diff --git a/components/dfs/filesystems/uffs/uffs_config.h b/components/dfs/filesystems/uffs/uffs_config.h
deleted file mode 100644
index 2f0b6992bb..0000000000
--- a/components/dfs/filesystems/uffs/uffs_config.h
+++ /dev/null
@@ -1,322 +0,0 @@
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/** 
- * \file uffs_config.h
- * \brief basic configuration of uffs
- * \author Ricky Zheng
- */
-
-#ifndef _UFFS_CONFIG_H_
-#define _UFFS_CONFIG_H_
-
-/**
- * \def UFFS_MAX_PAGE_SIZE
- * \note maximum page size UFFS support
- */
-#define UFFS_MAX_PAGE_SIZE		2048
-
-/**
- * \def UFFS_MAX_SPARE_SIZE
- */
-#define UFFS_MAX_SPARE_SIZE ((UFFS_MAX_PAGE_SIZE / 256) * 8)
-
-/**
- * \def UFFS_MAX_ECC_SIZE
- */
-#define UFFS_MAX_ECC_SIZE  ((UFFS_MAX_PAGE_SIZE / 256) * 5)
-
-/**
- * \def MAX_CACHED_BLOCK_INFO
- * \note uffs cache the block info for opened directories and files,
- *       a practical value is 5 ~ MAX_OBJECT_HANDLE
- */
-#define MAX_CACHED_BLOCK_INFO	50
-
-/** 
- * \def MAX_PAGE_BUFFERS
- * \note the bigger value will bring better read/write performance.
- *       but few writing performance will be improved when this 
- *       value is become larger than 'max pages per block'
- */
-#define MAX_PAGE_BUFFERS		40
-
-
-/** 
- * \def CLONE_BUFFER_THRESHOLD
- * \note reserve buffers for clone. 1 or 2 should be enough.
- */
-#define CLONE_BUFFERS_THRESHOLD	2
-
-/**
- * \def MAX_SPARE_BUFFERS
- * \note spare buffers are used for lower level flash operations,
- *		 5 should be enough.
- */
-#define MAX_SPARE_BUFFERS		5
-
-
-/**
- * \def MAX_DIRTY_PAGES_IN_A_BLOCK 
- * \note this value should be between '2' and the lesser of
- *		 'max pages per block' and (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD - 1).
- *
- *       the smaller the value the frequently the buffer will be flushed.
- */
-#define MAX_DIRTY_PAGES_IN_A_BLOCK 32	
-
-/**
- * \def MAX_DIRTY_BUF_GROUPS
- */
-#define MAX_DIRTY_BUF_GROUPS	3
-
-/**
- * \def CONFIG_ENABLE_UFFS_DEBUG_MSG
- * \note Enable debug message output. You must call uffs_InitDebugMessageOutput()
- *      to initialize debug apart from enable debug feature.
- */
-#define CONFIG_ENABLE_UFFS_DEBUG_MSG
-
-/**
- * \def CONFIG_USE_GLOBAL_FS_LOCK
- * \note use global lock instead of per-device lock.
- *       this is required if you use fd APIs in multi-thread environment.
- */
-#define CONFIG_USE_GLOBAL_FS_LOCK
-
-
-/**
- * \def CONFIG_USE_PER_DEVICE_LOCK
- * \note use per-device lock.
- *		 this is required if you use fs APIs in multi-thread environment.
- */
-//#define CONFIG_USE_PER_DEVICE_LOCK
-
-
-
-/**
- * \def CONFIG_USE_STATIC_MEMORY_ALLOCATOR
- * \note uffs will use static memory allocator if this is defined.
- *       to use static memory allocator, you need to provide memory
- *       buffer when creating uffs_Device.
- *
- *       use UFFS_STATIC_BUFF_SIZE() to calculate memory buffer size.
- */
-#define CONFIG_USE_STATIC_MEMORY_ALLOCATOR 0
-
-/**
- * \def CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR
- * \note  using system platform's 'malloc' and 'free'.
- */
-#define CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR 1
-
-
-
-/** 
- * \def CONFIG_FLUSH_BUF_AFTER_WRITE
- * \note UFFS will write all data directly into flash in 
- *       each 'write' call if you enable this option.
- *       (which means lesser data lost when power failure but
- *		 poorer writing performance).
- *		 It's not recommended to open this define for normal applications.
- */
-#define CONFIG_FLUSH_BUF_AFTER_WRITE
-
-
-/**
- * \def CONFIG_UFFS_AUTO_LAYOUT_MTD_COMP
- * \note Use Linux MTD compatiable spare placement for UFFS_LAYOUT_AUTO,
- *       only valid for page data size 512 or 2048.
- */
-//#define CONFIG_UFFS_AUTO_LAYOUT_USE_MTD_SCHEME
-
-
-/** 
- * \def MAX_OBJECT_HANDLE
- * maximum number of object handle 
- */
-#define MAX_OBJECT_HANDLE	50
-#define FD_SIGNATURE_SHIFT	6	
-
-
-/**
- * \def MAX_DIR_HANDLE
- * maximum number of uffs_DIR
- */
-#define MAX_DIR_HANDLE 10	
-
-/**
- * \def MINIMUN_ERASED_BLOCK
- *  UFFS will not allow appending or creating new files when the free/erased block
- *  is lower then MINIMUN_ERASED_BLOCK.
- */
-#define MINIMUN_ERASED_BLOCK 2
-
-/**
- * \def CONFIG_CHANGE_MODIFY_TIME
- * \note If defined, closing a file which is opened for writing/appending will
- *       update the file's modify time as well. Disable this feature will save a
- *       lot of writing activities if you frequently open files for write and close it.
- */
-//#define CONFIG_CHANGE_MODIFY_TIME
-
-
-/**
- * \def CONFIG_ENABLE_BAD_BLOCK_VERIFY
- * \note allow erase and verify block marked as 'bad' when format UFFS partition.
- *		it's not recommended for most NAND flash.
- */
-#define CONFIG_ENABLE_BAD_BLOCK_VERIFY
-
-/**
- * \def CONFIG_ERASE_BLOCK_BEFORE_MARK_BAD
- * \note erase block again before mark bad block
- */
-//#define CONFIG_ERASE_BLOCK_BEFORE_MARK_BAD
-
-/**
- * \def CONFIG_PAGE_WRITE_VERIFY
- * \note verify page data after write, for extra safe data storage.
- */
-#define CONFIG_PAGE_WRITE_VERIFY
-
-/**
- * \def CONFIG_BAD_BLOCK_POLICY_STRICT
- * \note If this is enabled, UFFS will report the block as 'bad' if any bit-flips found;
- *       otherwise, UFFS report bad block only when ECC failed or reported
- *		 by low level flash driver.
- *
- * \note Enable this will ensure your data always be stored on completely good blocks.
- */
-#define CONFIG_BAD_BLOCK_POLICY_STRICT
-
-
-/**
- * \def CONFIG_ENABLE_PAGE_DATA_CRC
- * \note If this is enabled, UFFS save page data CRC16 sum in mini header,
- *       it provides extra protection for data integrity.
- */
-#define CONFIG_ENABLE_PAGE_DATA_CRC
-
-
-/** micros for calculating buffer sizes */
-
-/**
- *	\def UFFS_BLOCK_INFO_BUFFER_SIZE
- *	\brief calculate memory bytes for block info caches
- */
-#define UFFS_BLOCK_INFO_BUFFER_SIZE(n_pages_per_block)	\
-			(											\
-				(										\
-					sizeof(uffs_BlockInfo) +			\
-					sizeof(uffs_PageSpare) * n_pages_per_block \
-				 ) * MAX_CACHED_BLOCK_INFO				\
-			)
-
-/**
- *	\def UFFS_PAGE_BUFFER_SIZE
- *	\brief calculate memory bytes for page buffers
- */
-#define UFFS_PAGE_BUFFER_SIZE(n_page_size)	\
-			(								\
-				(							\
-					sizeof(uffs_Buf) + n_page_size	\
-				) * MAX_PAGE_BUFFERS		\
-			)
-
-/**
- *	\def UFFS_TREE_BUFFER_SIZE
- *	\brief calculate memory bytes for tree nodes
- */
-#define UFFS_TREE_BUFFER_SIZE(n_blocks) (sizeof(TreeNode) * n_blocks)
-
-
-#define UFFS_SPARE_BUFFER_SIZE (MAX_SPARE_BUFFERS * UFFS_MAX_SPARE_SIZE)
-
-
-/**
- *	\def UFFS_STATIC_BUFF_SIZE
- *	\brief calculate total memory usage of uffs system
- */
-#define UFFS_STATIC_BUFF_SIZE(n_pages_per_block, n_page_size, n_blocks) \
-			(		\
-				UFFS_BLOCK_INFO_BUFFER_SIZE(n_pages_per_block) + \
-				UFFS_PAGE_BUFFER_SIZE(n_page_size) + \
-				UFFS_TREE_BUFFER_SIZE(n_blocks) + \
-				UFFS_SPARE_BUFFER_SIZE \
-			 )
-
-
-
-/* config check */
-#if (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD) < 3
-#error "MAX_PAGE_BUFFERS is too small"
-#endif
-
-#if (MAX_DIRTY_PAGES_IN_A_BLOCK < 2)
-#error "MAX_DIRTY_PAGES_IN_A_BLOCK should >= 2"
-#endif
-
-#if (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD - 1 < MAX_DIRTY_PAGES_IN_A_BLOCK)
-#error "MAX_DIRTY_PAGES_IN_A_BLOCK should < (MAX_PAGE_BUFFERS - CLONE_BUFFERS_THRESHOLD)"
-#endif
-
-#if defined(CONFIG_PAGE_WRITE_VERIFY) && (CLONE_BUFFERS_THRESHOLD < 2)
-#error "CLONE_BUFFERS_THRESHOLD should >= 2 when CONFIG_PAGE_WRITE_VERIFY is enabled."
-#endif
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR + CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR > 1
-#error "Please enable ONLY one memory allocator"
-#endif
-
-#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR + CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR == 0
-#error "Please enable ONE of memory allocators"
-#endif
-
-#if defined(CONFIG_USE_GLOBAL_FS_LOCK) && defined(CONFIG_USE_PER_DEVICE_LOCK)
-#error "enable either CONFIG_USE_GLOBAL_FS_LOCK or CONFIG_USE_PER_DEVICE_LOCK, not both"
-#endif
-
-#if (MAX_OBJECT_HANDLE > (1 << FD_SIGNATURE_SHIFT))
-#error "Please increase FD_SIGNATURE_SHIFT !"
-#endif
-
-#ifdef WIN32
-# pragma warning(disable : 4996)
-# pragma warning(disable : 4244)
-# pragma warning(disable : 4214)
-# pragma warning(disable : 4127)
-# pragma warning(disable : 4389)
-# pragma warning(disable : 4100)
-#endif
-
-#endif
diff --git a/components/dfs/filesystems/uffs/uffs_nandif.c b/components/dfs/filesystems/uffs/uffs_nandif.c
deleted file mode 100644
index 00e1bee8d5..0000000000
--- a/components/dfs/filesystems/uffs/uffs_nandif.c
+++ /dev/null
@@ -1,359 +0,0 @@
-/*
- * RT-Thread Device Interface for uffs
- */
-
-#include <rtthread.h>
-#include <rtdevice.h>
-#include "dfs_uffs.h"
-
-static int nand_init_flash(uffs_Device *dev)
-{
-    return UFFS_FLASH_NO_ERR;
-}
-
-static int nand_release_flash(uffs_Device *dev)
-{
-    return UFFS_FLASH_NO_ERR;
-}
-static int nand_erase_block(uffs_Device *dev, unsigned block)
-{
-    int res;
-
-    res = rt_mtd_nand_erase_block(RT_MTD_NAND_DEVICE(dev->_private), block);
-
-    return res == RT_EOK ? UFFS_FLASH_NO_ERR : UFFS_FLASH_IO_ERR;
-}
-
-#if defined(RT_UFFS_USE_CHECK_MARK_FUNCITON)
-static int nand_check_block(uffs_Device *dev, unsigned block)
-{
-    int res;
-
-    res = rt_mtd_nand_check_block(RT_MTD_NAND_DEVICE(dev->_private), block);
-
-    return res == RT_EOK ? UFFS_FLASH_NO_ERR : UFFS_FLASH_BAD_BLK;
-}
-
-static int nand_mark_badblock(uffs_Device *dev, unsigned block)
-{
-    int res;
-
-    res = rt_mtd_nand_mark_badblock(RT_MTD_NAND_DEVICE(dev->_private), block);
-
-    return res == RT_EOK ? UFFS_FLASH_NO_ERR : UFFS_FLASH_IO_ERR;
-}
-#endif
-
-#if (RT_CONFIG_UFFS_ECC_MODE == UFFS_ECC_NONE) || (RT_CONFIG_UFFS_ECC_MODE == UFFS_ECC_SOFT)
-static int nand_read_page(uffs_Device *dev,
-                          u32          block,
-                          u32          page,
-                          u8          *data,
-                          int          data_len,
-                          u8          *ecc,
-                          rt_uint8_t  *spare,
-                          int          spare_len)
-{
-    int res;
-
-    page = block * dev->attr->pages_per_block + page;
-    if (data == NULL && spare == NULL)
-    {
-#if defined(RT_UFFS_USE_CHECK_MARK_FUNCITON)
-        RT_ASSERT(0); //should not be here
-#else
-        /* check block status: bad or good */
-        rt_uint8_t spare[UFFS_MAX_SPARE_SIZE];
-
-        rt_memset(spare, 0, UFFS_MAX_SPARE_SIZE);
-
-        rt_mtd_nand_read(RT_MTD_NAND_DEVICE(dev->_private),
-                         page, RT_NULL, 0,
-                         spare, dev->attr->spare_size);//dev->mem.spare_data_size
-
-        res = spare[dev->attr->block_status_offs] == 0xFF ?
-                               UFFS_FLASH_NO_ERR : UFFS_FLASH_BAD_BLK;
-
-        return res;
-#endif
-    }
-
-    rt_mtd_nand_read(RT_MTD_NAND_DEVICE(dev->_private),
-                     page, data, data_len, spare, spare_len);
-
-    return UFFS_FLASH_NO_ERR;
-}
-
-static int nand_write_page(uffs_Device *dev,
-                           u32          block,
-                           u32          page,
-                           const u8    *data,
-                           int          data_len,
-                           const u8    *spare,
-                           int          spare_len)
-{
-    int res;
-
-    RT_ASSERT(UFFS_MAX_SPARE_SIZE >= dev->attr->spare_size);
-
-    page = block * dev->attr->pages_per_block + page;
-
-    if (data == NULL && spare == NULL)
-    {
-#if defined(RT_UFFS_USE_CHECK_MARK_FUNCITON)
-        RT_ASSERT(0); //should not be here
-#else
-        /* mark bad block  */
-        rt_uint8_t spare[UFFS_MAX_SPARE_SIZE];
-
-        rt_memset(spare, 0xFF, UFFS_MAX_SPARE_SIZE);
-        spare[dev->attr->block_status_offs] =  0x00;
-
-        res = rt_mtd_nand_write(RT_MTD_NAND_DEVICE(dev->_private),
-                                page, RT_NULL, 0,
-                                spare, dev->attr->spare_size);//dev->mem.spare_data_size
-        if (res != RT_EOK)
-            goto __error;
-#endif
-    }
-
-    res = rt_mtd_nand_write(RT_MTD_NAND_DEVICE(dev->_private),
-                           page,  data, data_len, spare, spare_len);
-    if (res != RT_EOK)
-        goto __error;
-
-    return UFFS_FLASH_NO_ERR;
-
-__error:
-    return UFFS_FLASH_IO_ERR;
-}
-
-const uffs_FlashOps nand_ops =
-{
-    nand_init_flash,    /* InitFlash() */
-    nand_release_flash, /* ReleaseFlash() */
-    nand_read_page,     /* ReadPage() */
-    NULL,               /* ReadPageWithLayout */
-    nand_write_page,    /* WritePage() */
-    NULL,               /* WritePageWithLayout */
-#if defined(RT_UFFS_USE_CHECK_MARK_FUNCITON)
-    nand_check_block,
-    nand_mark_badblock,
-#else
-    NULL,               /* IsBadBlock(), let UFFS take care of it. */
-    NULL,               /* MarkBadBlock(), let UFFS take care of it. */
-#endif
-    nand_erase_block,   /* EraseBlock() */
-};
-
-void uffs_setup_storage(struct uffs_StorageAttrSt *attr,
-                        struct rt_mtd_nand_device *nand)
-{
-    rt_memset(attr, 0, sizeof(struct uffs_StorageAttrSt));
-
-//  attr->total_blocks = nand->end_block - nand->start_block + 1;/* no use */
-    attr->page_data_size = nand->page_size;                /* page data size */
-    attr->pages_per_block = nand->pages_per_block;         /* pages per block */
-    attr->spare_size = nand->oob_size;                     /* page spare size */
-    attr->ecc_opt = RT_CONFIG_UFFS_ECC_MODE;               /* ecc option */
-    attr->ecc_size = 0;                                    /* ecc size is 0 , the uffs will calculate the ecc size*/
-    attr->block_status_offs = attr->ecc_size;              /* indicate block bad or good, offset in spare */
-    attr->layout_opt = RT_CONFIG_UFFS_LAYOUT;              /* let UFFS do the spare layout */
-}
-
-#elif  RT_CONFIG_UFFS_ECC_MODE == UFFS_ECC_HW_AUTO
-static int WritePageWithLayout(uffs_Device         *dev,
-                               u32                  block,
-                               u32                  page,
-                               const u8            *data,
-                               int                  data_len,
-                               const u8            *ecc,  //NULL
-                               const uffs_TagStore *ts)
-{
-    int res;
-    int spare_len;
-    rt_uint8_t spare[UFFS_MAX_SPARE_SIZE];
-
-    RT_ASSERT(UFFS_MAX_SPARE_SIZE >= dev->attr->spare_size);
-
-    page = block * dev->attr->pages_per_block + page;
-    spare_len = dev->mem.spare_data_size;
-
-    if (data == NULL && ts == NULL)
-    {
-#if defined(RT_UFFS_USE_CHECK_MARK_FUNCITON)
-        RT_ASSERT(0); //should not be here
-#else
-        /* mark bad block  */
-        rt_memset(spare, 0xFF, UFFS_MAX_SPARE_SIZE);
-        spare[dev->attr->block_status_offs] =  0x00;
-
-        res = rt_mtd_nand_write(RT_MTD_NAND_DEVICE(dev->_private),
-                                page, RT_NULL, 0,
-                                spare, dev->attr->spare_size);//dev->mem.spare_data_size
-        if (res != RT_EOK)
-            goto __error;
-
-        dev->st.io_write++;
-        return UFFS_FLASH_NO_ERR;
-#endif
-    }
-
-    if (data != NULL && data_len != 0)
-    {
-        RT_ASSERT(data_len == dev->attr->page_data_size);
-
-        dev->st.page_write_count++;
-        dev->st.io_write += data_len;
-    }
-
-    if (ts != RT_NULL)
-    {
-        uffs_FlashMakeSpare(dev, ts, RT_NULL, (u8 *)spare);
-        dev->st.spare_write_count++;
-        dev->st.io_write += spare_len;
-    }
-
-    res = rt_mtd_nand_write(RT_MTD_NAND_DEVICE(dev->_private),
-                            page, data, data_len, spare, spare_len);
-    if (res != RT_EOK)
-        goto __error;
-
-    return UFFS_FLASH_NO_ERR;
-
-__error:
-    return UFFS_FLASH_IO_ERR;
-}
-
-static URET ReadPageWithLayout(uffs_Device   *dev,
-                               u32            block,
-                               u32            page,
-                               u8            *data,
-                               int            data_len,
-                               u8            *ecc,              //NULL
-                               uffs_TagStore *ts,
-                               u8            *ecc_store)        //NULL
-{
-    int res = UFFS_FLASH_NO_ERR;
-    int spare_len;
-    rt_uint8_t spare[UFFS_MAX_SPARE_SIZE];
-
-    RT_ASSERT(UFFS_MAX_SPARE_SIZE >= dev->attr->spare_size);
-
-    page = block * dev->attr->pages_per_block + page;
-    spare_len = dev->mem.spare_data_size;
-
-    if (data == RT_NULL && ts == RT_NULL)
-    {
-#if defined(RT_UFFS_USE_CHECK_MARK_FUNCITON)
-        RT_ASSERT(0); //should not be here
-#else
-        /* check block good or bad */
-
-        rt_mtd_nand_read(RT_MTD_NAND_DEVICE(dev->_private),
-                         page, RT_NULL, 0,
-                         spare, dev->attr->spare_size);//dev->mem.spare_data_size
-
-        dev->st.io_read++;
-
-        res = spare[dev->attr->block_status_offs] == 0xFF ?
-                               UFFS_FLASH_NO_ERR : UFFS_FLASH_BAD_BLK;
-        return res;
-#endif
-    }
-
-    if (data != RT_NULL)
-    {
-        dev->st.io_read += data_len;
-        dev->st.page_read_count++;
-    }
-
-    res = rt_mtd_nand_read(RT_MTD_NAND_DEVICE(dev->_private),
-                           page, data, data_len, spare, spare_len);
-    if (res == 0)
-        res = UFFS_FLASH_NO_ERR;
-    else if (res == -1)
-    {
-        //TODO ecc correct, add code to use hardware do ecc correct
-        res = UFFS_FLASH_ECC_OK;
-    }
-    else
-        res = UFFS_FLASH_ECC_FAIL;
-
-    if (ts != RT_NULL)
-    {
-        // unload ts and ecc from spare, you can modify it if you like
-        uffs_FlashUnloadSpare(dev, (const u8 *)spare, ts, RT_NULL);
-
-        if ((spare[spare_len - 1] == 0xFF) && (res == UFFS_FLASH_NO_ERR))
-            res = UFFS_FLASH_NOT_SEALED;
-
-        dev->st.io_read += spare_len;
-        dev->st.spare_read_count++;
-    }
-
-    return res;
-}
-
-const uffs_FlashOps nand_ops =
-{
-    nand_init_flash,    /* InitFlash() */
-    nand_release_flash, /* ReleaseFlash() */
-    NULL,               /* ReadPage() */
-    ReadPageWithLayout, /* ReadPageWithLayout */
-    NULL,               /* WritePage() */
-    WritePageWithLayout,/* WritePageWithLayout */
-
-#if defined(RT_UFFS_USE_CHECK_MARK_FUNCITON)
-    nand_check_block,
-    nand_mark_badblock,
-#else
-    NULL,               /* IsBadBlock(), let UFFS take care of it. */
-    NULL,               /* MarkBadBlock(), let UFFS take care of it. */
-#endif
-    nand_erase_block,   /* EraseBlock() */
-};
-
-static rt_uint8_t hw_flash_data_layout[UFFS_SPARE_LAYOUT_SIZE] =
-{
-    0x05, 0x08, 0xFF, 0x00
-};
-
-static rt_uint8_t hw_flash_ecc_layout[UFFS_SPARE_LAYOUT_SIZE] =
-{
-    0x00, 0x04, 0xFF, 0x00
-};
-
-RT_WEAK void uffs_setup_storage(struct uffs_StorageAttrSt *attr,
-                        struct rt_mtd_nand_device *nand)
-{
-    rt_memset(attr, 0, sizeof(struct uffs_StorageAttrSt));
-
-//  attr->total_blocks = nand->end_block - nand->start_block + 1;/* no use */
-    attr->page_data_size = nand->page_size;                /* page data size */
-    attr->pages_per_block = nand->pages_per_block;         /* pages per block */
-    attr->spare_size = nand->oob_size;                     /* page spare size */
-    attr->ecc_opt = RT_CONFIG_UFFS_ECC_MODE;               /* ecc option */
-    attr->ecc_size = nand->oob_size-nand->oob_free;        /* ecc size */
-    attr->block_status_offs = attr->ecc_size;              /* indicate block bad or good, offset in spare */
-    attr->layout_opt = RT_CONFIG_UFFS_LAYOUT;              /* let UFFS do the spare layout */
-
-    /* calculate the ecc layout array */
-    hw_flash_data_layout[0] = attr->ecc_size + 1; /* ecc size + 1byte block status */
-    hw_flash_data_layout[1] = 0x08;
-    hw_flash_data_layout[2] = 0xFF;
-    hw_flash_data_layout[3] = 0x00;
-
-    hw_flash_ecc_layout[0] = 0;
-    hw_flash_ecc_layout[1] = attr->ecc_size;
-    hw_flash_ecc_layout[2] = 0xFF;
-    hw_flash_ecc_layout[3] = 0x00;
-
-    /* initialize  _uffs_data_layout and _uffs_ecc_layout */
-    rt_memcpy(attr->_uffs_data_layout, hw_flash_data_layout, UFFS_SPARE_LAYOUT_SIZE);
-    rt_memcpy(attr->_uffs_ecc_layout, hw_flash_ecc_layout, UFFS_SPARE_LAYOUT_SIZE);
-
-    attr->data_layout = attr->_uffs_data_layout;
-    attr->ecc_layout = attr->_uffs_ecc_layout;
-}
-#endif
diff --git a/components/dfs/filesystems/uffs/uffs_rtthread.c b/components/dfs/filesystems/uffs/uffs_rtthread.c
deleted file mode 100644
index bad456f04c..0000000000
--- a/components/dfs/filesystems/uffs/uffs_rtthread.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-/*
-  This file is part of UFFS, the Ultra-low-cost Flash File System.
-  
-  Copyright (C) 2005-2009 Ricky Zheng <ricky_gz_zheng@yahoo.co.nz>
-
-  UFFS is free software; you can redistribute it and/or modify it under
-  the GNU Library General Public License as published by the Free Software 
-  Foundation; either version 2 of the License, or (at your option) any
-  later version.
-
-  UFFS is distributed in the hope that it will be useful, but WITHOUT
-  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-  or GNU Library General Public License, as applicable, for more details.
- 
-  You should have received a copy of the GNU General Public License
-  and GNU Library General Public License along with UFFS; if not, write
-  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA  02110-1301, USA.
-
-  As a special exception, if other files instantiate templates or use
-  macros or inline functions from this file, or you compile this file
-  and link it with other works to produce a work based on this file,
-  this file does not by itself cause the resulting work to be covered
-  by the GNU General Public License. However the source code for this
-  file must still be made available in accordance with section (3) of
-  the GNU General Public License v2.
- 
-  This exception does not invalidate any other reasons why a work based
-  on this file might be covered by the GNU General Public License.
-*/
-
-/**
- * \file uffs_os_posix.c
- * \brief Emulation on POSIX host. This is just a dumb implementation, does not really create semaphores.
- * \author Ricky Zheng
- */
-
-#include "uffs_config.h"
-#include "uffs/uffs_os.h"
-#include "uffs/uffs_public.h"
-//#include <time.h>
-
-#define PFX "os  : "
-
-int uffs_SemCreate(OSSEM *sem)
-{
-	static int count = 0;
-	char name [RT_NAME_MAX+1];
-	struct rt_mutex *mutex = RT_NULL;
-
-	rt_snprintf(name, sizeof(name), "usem%d", count++);
-	mutex = rt_mutex_create(name, RT_IPC_FLAG_FIFO);
-	if (mutex != RT_NULL)
-	{
-		*sem = (OSSEM *)mutex;
-		return 0;
-	}
-	uffs_Perror(UFFS_MSG_SERIOUS, "can't get a semphore");
-	return -1;
-}
-
-int uffs_SemWait(OSSEM sem)
-{
-	return rt_mutex_take((struct rt_mutex *)sem, RT_WAITING_FOREVER);
-}
-
-int uffs_SemSignal(OSSEM sem)
-{
-	return rt_mutex_release((struct rt_mutex *)sem);
-}
-
-int uffs_SemDelete(OSSEM *sem)
-{
-	int ret = -1;
-	
-	if (sem) {
-		ret = rt_mutex_delete((struct rt_mutex *)(*sem));
-		if (ret == RT_EOK) {
-			*sem = 0;
-		}			
-	}
-	return ret;
-}
-
-int uffs_OSGetTaskId(void)
-{
-	//TODO: ... return current task ID ...
-	return 0;
-}
-
-unsigned int uffs_GetCurDateTime(void)
-{
-	// FIXME: return system time, please modify this for your platform ! 
-	//			or just return 0 if you don't care about file time.
-#if 0
-	time_t tvalue;
-
-	tvalue = time(NULL);
-	
-	return (unsigned int)tvalue;
-#endif
-	return 0;
-}
-
-#if CONFIG_USE_SYSTEM_MEMORY_ALLOCATOR > 0
-static void * sys_malloc(struct uffs_DeviceSt *dev, unsigned int size)
-{
-	dev = dev;
-	uffs_Perror(UFFS_MSG_NORMAL, "system memory alloc %d bytes", size);
-	return rt_malloc(size);
-}
-
-static URET sys_free(struct uffs_DeviceSt *dev, void *p)
-{
-	dev = dev;
-	rt_free(p);
-	return U_SUCC;
-}
-
-void uffs_MemSetupSystemAllocator(uffs_MemAllocator *allocator)
-{
-	allocator->malloc = sys_malloc;
-	allocator->free = sys_free;
-}
-#endif
-
-#if !defined(RT_THREAD)
-/* debug message output throught 'printf' */
-static void output_dbg_msg(const char *msg);
-static struct uffs_DebugMsgOutputSt m_dbg_ops = {
-	output_dbg_msg,
-	NULL,
-};
-
-static void output_dbg_msg(const char *msg)
-{
-	rt_kprintf("%s", msg);
-}
-
-void uffs_SetupDebugOutput(void)
-{
-	uffs_InitDebugMessageOutput(&m_dbg_ops, UFFS_MSG_NOISY);
-}
-#else
-
-void uffs_SetupDebugOutput(void)
-{
-}
-#endif
diff --git a/components/dfs/include/dfs.h b/components/dfs/include/dfs.h
index 1158df93cb..80dc433787 100644
--- a/components/dfs/include/dfs.h
+++ b/components/dfs/include/dfs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/include/dfs_file.h b/components/dfs/include/dfs_file.h
index 2dfacd653e..df1013d69c 100644
--- a/components/dfs/include/dfs_file.h
+++ b/components/dfs/include/dfs_file.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/include/dfs_fs.h b/components/dfs/include/dfs_fs.h
index a35a513044..8dc93f9599 100644
--- a/components/dfs/include/dfs_fs.h
+++ b/components/dfs/include/dfs_fs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/include/dfs_poll.h b/components/dfs/include/dfs_poll.h
index d9597a4364..096a5fe712 100644
--- a/components/dfs/include/dfs_poll.h
+++ b/components/dfs/include/dfs_poll.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/include/dfs_posix.h b/components/dfs/include/dfs_posix.h
index 87d5f0771e..0475460d95 100644
--- a/components/dfs/include/dfs_posix.h
+++ b/components/dfs/include/dfs_posix.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/include/dfs_private.h b/components/dfs/include/dfs_private.h
index fccd260ac0..e602c21730 100644
--- a/components/dfs/include/dfs_private.h
+++ b/components/dfs/include/dfs_private.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/include/dfs_select.h b/components/dfs/include/dfs_select.h
index 3ac5817874..458691df20 100644
--- a/components/dfs/include/dfs_select.h
+++ b/components/dfs/include/dfs_select.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/src/dfs.c b/components/dfs/src/dfs.c
index 7ace0bc160..8155b088f0 100644
--- a/components/dfs/src/dfs.c
+++ b/components/dfs/src/dfs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/src/dfs_file.c b/components/dfs/src/dfs_file.c
index fd205f2f3a..aa6494457a 100644
--- a/components/dfs/src/dfs_file.c
+++ b/components/dfs/src/dfs_file.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/src/dfs_fs.c b/components/dfs/src/dfs_fs.c
index c21b914727..53e7e385a4 100644
--- a/components/dfs/src/dfs_fs.c
+++ b/components/dfs/src/dfs_fs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -522,16 +522,16 @@ INIT_ENV_EXPORT(dfs_mount_table);
 int dfs_mount_device(rt_device_t dev)
 {
   int index = 0;
-  
+
   if(dev == RT_NULL) {
     rt_kprintf("the device is NULL to be mounted.\n");
     return -RT_ERROR;
   }
-  
+
   while (1)
   {
     if (mount_table[index].path == NULL) break;
-    
+
     if(strcmp(mount_table[index].device_name, dev->parent.name) == 0) {
       if (dfs_mount(mount_table[index].device_name,
                     mount_table[index].path,
@@ -548,10 +548,10 @@ int dfs_mount_device(rt_device_t dev)
         return RT_EOK;
       }
     }
-    
+
     index ++;
   }
-  
+
   rt_kprintf("can't find device:%s to be mounted.\n", dev->parent.name);
   return -RT_ERROR;
 }
diff --git a/components/dfs/src/dfs_posix.c b/components/dfs/src/dfs_posix.c
index fc603df437..a7c306366f 100644
--- a/components/dfs/src/dfs_posix.c
+++ b/components/dfs/src/dfs_posix.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/dfs/src/poll.c b/components/dfs/src/poll.c
index fc48eca758..d1e0372494 100644
--- a/components/dfs/src/poll.c
+++ b/components/dfs/src/poll.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -140,7 +140,7 @@ static int do_pollfd(struct pollfd *pollfd, rt_pollreq_t *req)
 
                 /* dealwith the device return error -1*/
                 if (mask < 0)
-                {   
+                {
                     fd_put(f);
                     pollfd->revents = 0;
                     return mask;
@@ -232,4 +232,4 @@ int poll(struct pollfd *fds, nfds_t nfds, int timeout)
     return num;
 }
 
-#endif 
+#endif
diff --git a/components/dfs/src/select.c b/components/dfs/src/select.c
index 181855bc74..c9286ca97f 100644
--- a/components/dfs/src/select.c
+++ b/components/dfs/src/select.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -180,4 +180,4 @@ int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struc
     return ret;
 }
 
-#endif 
+#endif
diff --git a/components/drivers/audio/audio.c b/components/drivers/audio/audio.c
index c3f8723db6..f9d42aeb5c 100644
--- a/components/drivers/audio/audio.c
+++ b/components/drivers/audio/audio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/audio/audio_pipe.c b/components/drivers/audio/audio_pipe.c
index e9de1ffb74..4dd1138610 100644
--- a/components/drivers/audio/audio_pipe.c
+++ b/components/drivers/audio/audio_pipe.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/audio/audio_pipe.h b/components/drivers/audio/audio_pipe.h
index 3ae3bc8498..6c4719d56d 100644
--- a/components/drivers/audio/audio_pipe.h
+++ b/components/drivers/audio/audio_pipe.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/can/can.c b/components/drivers/can/can.c
index 9f4612355b..55444c3a0e 100644
--- a/components/drivers/can/can.c
+++ b/components/drivers/can/can.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/cputime/cputime.c b/components/drivers/cputime/cputime.c
index 3ec860d5c5..4a9eee3a71 100644
--- a/components/drivers/cputime/cputime.c
+++ b/components/drivers/cputime/cputime.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -14,7 +14,7 @@
 static const struct rt_clock_cputime_ops *_cputime_ops  = RT_NULL;
 
 /**
- * The clock_cpu_getres() function shall return the resolution of CPU time, the 
+ * The clock_cpu_getres() function shall return the resolution of CPU time, the
  * number of nanosecond per tick.
  *
  * @return the number of nanosecond per tick
@@ -43,7 +43,7 @@ uint32_t clock_cpu_gettime(void)
 }
 
 /**
- * The clock_cpu_microsecond() fucntion shall return the microsecond according to 
+ * The clock_cpu_microsecond() fucntion shall return the microsecond according to
  * cpu_tick parameter.
  *
  * @param cpu_tick the cpu tick
@@ -58,7 +58,7 @@ uint32_t clock_cpu_microsecond(uint32_t cpu_tick)
 }
 
 /**
- * The clock_cpu_microsecond() fucntion shall return the millisecond according to 
+ * The clock_cpu_microsecond() fucntion shall return the millisecond according to
  * cpu_tick parameter.
  *
  * @param cpu_tick the cpu tick
@@ -74,7 +74,7 @@ uint32_t clock_cpu_millisecond(uint32_t cpu_tick)
 
 /**
  * The clock_cpu_seops() function shall set the ops of cpu time.
- * 
+ *
  * @return always return 0.
  */
 int clock_cpu_setops(const struct rt_clock_cputime_ops *ops)
diff --git a/components/drivers/cputime/cputime_cortexm.c b/components/drivers/cputime/cputime_cortexm.c
index 05ed6ed447..071acfe9bb 100644
--- a/components/drivers/cputime/cputime_cortexm.c
+++ b/components/drivers/cputime/cputime_cortexm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -19,7 +19,7 @@
 static float cortexm_cputime_getres(void)
 {
     float ret = 1000 * 1000 * 1000;
-    
+
     ret = ret / SystemCoreClock;
     return ret;
 }
@@ -29,7 +29,7 @@ static uint32_t cortexm_cputime_gettime(void)
     return DWT->CYCCNT;
 }
 
-const static struct rt_clock_cputime_ops _cortexm_ops = 
+const static struct rt_clock_cputime_ops _cortexm_ops =
 {
     cortexm_cputime_getres,
     cortexm_cputime_gettime
@@ -38,13 +38,13 @@ const static struct rt_clock_cputime_ops _cortexm_ops =
 int cortexm_cputime_init(void)
 {
     /* check support bit */
-    if ((DWT->CTRL & (1UL << DWT_CTRL_NOCYCCNT_Pos)) == 0) 
+    if ((DWT->CTRL & (1UL << DWT_CTRL_NOCYCCNT_Pos)) == 0)
     {
         /* enable trace*/
         CoreDebug->DEMCR |= (1UL << CoreDebug_DEMCR_TRCENA_Pos);
-        
+
         /* whether cycle counter not enabled */
-        if ((DWT->CTRL & (1UL << DWT_CTRL_CYCCNTENA_Pos)) == 0) 
+        if ((DWT->CTRL & (1UL << DWT_CTRL_CYCCNTENA_Pos)) == 0)
         {
             /* enable cycle counter */
             DWT->CTRL |= (1UL << DWT_CTRL_CYCCNTENA_Pos);
diff --git a/components/drivers/hwcrypto/hw_bignum.c b/components/drivers/hwcrypto/hw_bignum.c
index 88813566b1..0488a16f08 100644
--- a/components/drivers/hwcrypto/hw_bignum.c
+++ b/components/drivers/hwcrypto/hw_bignum.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -56,7 +56,7 @@ rt_err_t rt_hwcrypto_bignum_default(struct rt_hwcrypto_device *device)
 
 /**
  * @brief           Init bignum obj
- * 
+ *
  * @param n         bignum obj
  */
 void rt_hwcrypto_bignum_init(struct hw_bignum_mpi *n)
@@ -87,9 +87,9 @@ void rt_hwcrypto_bignum_free(struct hw_bignum_mpi *n)
 
 /**
  * @brief           Get length of bignum as an unsigned binary buffer
- * 
+ *
  * @param n         bignum obj
- * 
+ *
  * @return          binary buffer length
  */
 int rt_hwcrypto_bignum_get_len(const struct hw_bignum_mpi *n)
@@ -112,11 +112,11 @@ int rt_hwcrypto_bignum_get_len(const struct hw_bignum_mpi *n)
 
 /**
  * @brief           Export n into unsigned binary data, big endian
- * 
+ *
  * @param n         bignum obj
  * @param buf       Buffer for the binary number
  * @param len       Length of the buffer
- * 
+ *
  * @return          export bin length
  */
 int rt_hwcrypto_bignum_export_bin(struct hw_bignum_mpi *n, rt_uint8_t *buf, int len)
@@ -139,11 +139,11 @@ int rt_hwcrypto_bignum_export_bin(struct hw_bignum_mpi *n, rt_uint8_t *buf, int
 
 /**
  * @brief           Import n from unsigned binary data, big endian
- * 
+ *
  * @param n         bignum obj
  * @param buf       Buffer for the binary number
  * @param len       Length of the buffer
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_import_bin(struct hw_bignum_mpi *n, rt_uint8_t *buf, int len)
@@ -179,11 +179,11 @@ rt_err_t rt_hwcrypto_bignum_import_bin(struct hw_bignum_mpi *n, rt_uint8_t *buf,
 
 /**
  * @brief           x = a + b
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_add(struct hw_bignum_mpi *x,
@@ -206,11 +206,11 @@ rt_err_t rt_hwcrypto_bignum_add(struct hw_bignum_mpi *x,
 
 /**
  * @brief           x = a - b
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_sub(struct hw_bignum_mpi *x,
@@ -233,11 +233,11 @@ rt_err_t rt_hwcrypto_bignum_sub(struct hw_bignum_mpi *x,
 
 /**
  * @brief           x = a * b
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_mul(struct hw_bignum_mpi *x,
@@ -260,11 +260,11 @@ rt_err_t rt_hwcrypto_bignum_mul(struct hw_bignum_mpi *x,
 
 /**
  * @brief           x = a * b (mod c)
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_mulmod(struct hw_bignum_mpi *x,
@@ -288,11 +288,11 @@ rt_err_t rt_hwcrypto_bignum_mulmod(struct hw_bignum_mpi *x,
 
 /**
  * @brief           x = a ^ b (mod c)
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_exptmod(struct hw_bignum_mpi *x,
diff --git a/components/drivers/hwcrypto/hw_bignum.h b/components/drivers/hwcrypto/hw_bignum.h
index a1f567e68f..442b28f558 100644
--- a/components/drivers/hwcrypto/hw_bignum.h
+++ b/components/drivers/hwcrypto/hw_bignum.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -83,42 +83,42 @@ void rt_hwcrypto_bignum_free(struct hw_bignum_mpi *n);
 
 /**
  * @brief           Get length of bignum as an unsigned binary buffer
- * 
+ *
  * @param n         bignum obj
- * 
+ *
  * @return          binary buffer Length
  */
 int rt_hwcrypto_bignum_get_len(const struct hw_bignum_mpi *n);
 
 /**
  * @brief           Export n into unsigned binary data, big endian
- * 
+ *
  * @param n         bignum obj
  * @param buf       Buffer for the binary number
  * @param len       Length of the buffer
- * 
+ *
  * @return          export bin length
  */
 int rt_hwcrypto_bignum_export_bin(struct hw_bignum_mpi *n, rt_uint8_t *buf, int len);
 
 /**
  * @brief           Import n from unsigned binary data, big endian
- * 
+ *
  * @param n         bignum obj
  * @param buf       Buffer for the binary number
  * @param len       Length of the buffer
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_import_bin(struct hw_bignum_mpi *n, rt_uint8_t *buf, int len);
 
 /**
  * @brief           x = a + b
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_add(struct hw_bignum_mpi *x,
@@ -127,11 +127,11 @@ rt_err_t rt_hwcrypto_bignum_add(struct hw_bignum_mpi *x,
 
 /**
  * @brief           x = a - b
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_sub(struct hw_bignum_mpi *x,
@@ -140,11 +140,11 @@ rt_err_t rt_hwcrypto_bignum_sub(struct hw_bignum_mpi *x,
 
 /**
  * @brief           x = a * b
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_mul(struct hw_bignum_mpi *x,
@@ -153,11 +153,11 @@ rt_err_t rt_hwcrypto_bignum_mul(struct hw_bignum_mpi *x,
 
 /**
  * @brief           x = a * b (mod c)
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_mulmod(struct hw_bignum_mpi *x,
@@ -167,11 +167,11 @@ rt_err_t rt_hwcrypto_bignum_mulmod(struct hw_bignum_mpi *x,
 
 /**
  * @brief           x = a ^ b (mod c)
- * 
+ *
  * @param a         bignum obj
  * @param b         bignum obj
  * @param c         bignum obj
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_bignum_exptmod(struct hw_bignum_mpi *x,
diff --git a/components/drivers/hwcrypto/hw_crc.c b/components/drivers/hwcrypto/hw_crc.c
index 20579711e2..a1d95793e2 100644
--- a/components/drivers/hwcrypto/hw_crc.c
+++ b/components/drivers/hwcrypto/hw_crc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -20,7 +20,7 @@
  *
  * @return          CRC context
  */
-struct rt_hwcrypto_ctx *rt_hwcrypto_crc_create(struct rt_hwcrypto_device *device, 
+struct rt_hwcrypto_ctx *rt_hwcrypto_crc_create(struct rt_hwcrypto_device *device,
                                                hwcrypto_crc_mode mode)
 {
     struct hwcrypto_crc *crc_ctx;
@@ -89,8 +89,8 @@ void rt_hwcrypto_crc_destroy(struct rt_hwcrypto_ctx *ctx)
  *
  * @return          RT_EOK on success.
  */
-rt_uint32_t rt_hwcrypto_crc_update(struct rt_hwcrypto_ctx *ctx, 
-                                             const rt_uint8_t *input, 
+rt_uint32_t rt_hwcrypto_crc_update(struct rt_hwcrypto_ctx *ctx,
+                                             const rt_uint8_t *input,
                                              rt_size_t length)
 {
     struct hwcrypto_crc *crc_ctx = (struct hwcrypto_crc *)ctx;
@@ -107,7 +107,7 @@ rt_uint32_t rt_hwcrypto_crc_update(struct rt_hwcrypto_ctx *ctx,
  * @param ctx       CRC context
  * @param cfg       CRC config
  */
-void rt_hwcrypto_crc_cfg(struct rt_hwcrypto_ctx *ctx, 
+void rt_hwcrypto_crc_cfg(struct rt_hwcrypto_ctx *ctx,
                                    struct hwcrypto_crc_cfg *cfg)
 {
     if (cfg)
diff --git a/components/drivers/hwcrypto/hw_crc.h b/components/drivers/hwcrypto/hw_crc.h
index a6df92a2ef..8e0fcefccf 100644
--- a/components/drivers/hwcrypto/hw_crc.h
+++ b/components/drivers/hwcrypto/hw_crc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -129,7 +129,7 @@ void rt_hwcrypto_crc_destroy(struct rt_hwcrypto_ctx *ctx);
  *
  * @return          CRC value
  */
-rt_uint32_t rt_hwcrypto_crc_update(struct rt_hwcrypto_ctx *ctx, 
+rt_uint32_t rt_hwcrypto_crc_update(struct rt_hwcrypto_ctx *ctx,
                                    const rt_uint8_t *input, rt_size_t length);
 
 /**
@@ -138,7 +138,7 @@ rt_uint32_t rt_hwcrypto_crc_update(struct rt_hwcrypto_ctx *ctx,
  * @param ctx       CRC context
  * @param cfg       CRC config
  */
-void rt_hwcrypto_crc_cfg(struct rt_hwcrypto_ctx *ctx, 
+void rt_hwcrypto_crc_cfg(struct rt_hwcrypto_ctx *ctx,
                          struct hwcrypto_crc_cfg *cfg);
 
 #ifdef __cplusplus
diff --git a/components/drivers/hwcrypto/hw_gcm.c b/components/drivers/hwcrypto/hw_gcm.c
index 8d0f49149a..a8106694f9 100644
--- a/components/drivers/hwcrypto/hw_gcm.c
+++ b/components/drivers/hwcrypto/hw_gcm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/hwcrypto/hw_gcm.h b/components/drivers/hwcrypto/hw_gcm.h
index a73b2b0634..3a2f87bc30 100644
--- a/components/drivers/hwcrypto/hw_gcm.h
+++ b/components/drivers/hwcrypto/hw_gcm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/hwcrypto/hw_hash.c b/components/drivers/hwcrypto/hw_hash.c
index b20069ac0e..cf5ec8d70a 100644
--- a/components/drivers/hwcrypto/hw_hash.c
+++ b/components/drivers/hwcrypto/hw_hash.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/hwcrypto/hw_hash.h b/components/drivers/hwcrypto/hw_hash.h
index de0310e84c..41abd06c4c 100644
--- a/components/drivers/hwcrypto/hw_hash.h
+++ b/components/drivers/hwcrypto/hw_hash.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/hwcrypto/hw_rng.c b/components/drivers/hwcrypto/hw_rng.c
index 13a17cc6be..b6f62db347 100644
--- a/components/drivers/hwcrypto/hw_rng.c
+++ b/components/drivers/hwcrypto/hw_rng.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -81,7 +81,7 @@ rt_err_t rt_hwcrypto_rng_default(struct rt_hwcrypto_device *device)
  * @brief           Getting Random Numbers from RNG Context
  *
  * @param ctx       RNG context
- * 
+ *
  * @return          Random number
  */
 rt_uint32_t rt_hwcrypto_rng_update_ctx(struct rt_hwcrypto_ctx *ctx)
diff --git a/components/drivers/hwcrypto/hw_rng.h b/components/drivers/hwcrypto/hw_rng.h
index fc28afdb1e..3c014f6bee 100644
--- a/components/drivers/hwcrypto/hw_rng.h
+++ b/components/drivers/hwcrypto/hw_rng.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -60,7 +60,7 @@ rt_err_t rt_hwcrypto_rng_default(struct rt_hwcrypto_device *device);
  * @brief           Getting Random Numbers from RNG Context
  *
  * @param ctx       RNG context
- * 
+ *
  * @return          Random number
  */
 rt_uint32_t rt_hwcrypto_rng_update_ctx(struct rt_hwcrypto_ctx *ctx);
diff --git a/components/drivers/hwcrypto/hw_symmetric.c b/components/drivers/hwcrypto/hw_symmetric.c
index 789c5c1a2c..9398298fed 100644
--- a/components/drivers/hwcrypto/hw_symmetric.c
+++ b/components/drivers/hwcrypto/hw_symmetric.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -215,7 +215,7 @@ void rt_hwcrypto_symmetric_get_ivoff(struct rt_hwcrypto_ctx *ctx, rt_int32_t *iv
  *
  * @param des       The destination symmetric crypto context
  * @param src       The symmetric crypto context to be copy
- * 
+ *
  * @return          RT_EOK on success.
  */
 rt_err_t rt_hwcrypto_symmetric_cpy(struct rt_hwcrypto_ctx *des, const struct rt_hwcrypto_ctx *src)
diff --git a/components/drivers/hwcrypto/hw_symmetric.h b/components/drivers/hwcrypto/hw_symmetric.h
index 12f4dbec30..f3f78fb21c 100644
--- a/components/drivers/hwcrypto/hw_symmetric.h
+++ b/components/drivers/hwcrypto/hw_symmetric.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/hwcrypto/hwcrypto.c b/components/drivers/hwcrypto/hwcrypto.c
index bbe1ff63fb..473b52fb9a 100644
--- a/components/drivers/hwcrypto/hwcrypto.c
+++ b/components/drivers/hwcrypto/hwcrypto.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/hwcrypto/hwcrypto.h b/components/drivers/hwcrypto/hwcrypto.h
index a428f4437d..cdf057c49d 100644
--- a/components/drivers/hwcrypto/hwcrypto.h
+++ b/components/drivers/hwcrypto/hwcrypto.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/hwtimer/hwtimer.c b/components/drivers/hwtimer/hwtimer.c
index 976d8bbf32..49a57be9af 100644
--- a/components/drivers/hwtimer/hwtimer.c
+++ b/components/drivers/hwtimer/hwtimer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -325,7 +325,7 @@ void rt_device_hwtimer_isr(rt_hwtimer_t *timer)
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops hwtimer_ops = 
+const static struct rt_device_ops hwtimer_ops =
 {
     rt_hwtimer_init,
     rt_hwtimer_open,
diff --git a/components/drivers/i2c/i2c-bit-ops.c b/components/drivers/i2c/i2c-bit-ops.c
index 3a9b4efeb3..ae1f4db9c0 100644
--- a/components/drivers/i2c/i2c-bit-ops.c
+++ b/components/drivers/i2c/i2c-bit-ops.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/i2c/i2c_core.c b/components/drivers/i2c/i2c_core.c
index f358c2b758..87178e37d5 100644
--- a/components/drivers/i2c/i2c_core.c
+++ b/components/drivers/i2c/i2c_core.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/i2c/i2c_dev.c b/components/drivers/i2c/i2c_dev.c
index 59f728be09..4f567f8227 100644
--- a/components/drivers/i2c/i2c_dev.c
+++ b/components/drivers/i2c/i2c_dev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -97,9 +97,9 @@ static rt_err_t i2c_bus_device_control(rt_device_t dev,
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops i2c_ops = 
+const static struct rt_device_ops i2c_ops =
 {
-    RT_NULL, 
+    RT_NULL,
     RT_NULL,
     RT_NULL,
     i2c_bus_device_read,
diff --git a/components/drivers/include/drivers/adc.h b/components/drivers/include/drivers/adc.h
index 8e3498e791..e2ce087fb9 100644
--- a/components/drivers/include/drivers/adc.h
+++ b/components/drivers/include/drivers/adc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/alarm.h b/components/drivers/include/drivers/alarm.h
index e59c4142c7..11637df949 100644
--- a/components/drivers/include/drivers/alarm.h
+++ b/components/drivers/include/drivers/alarm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/audio.h b/components/drivers/include/drivers/audio.h
index 86057e7626..45c31be2f3 100644
--- a/components/drivers/include/drivers/audio.h
+++ b/components/drivers/include/drivers/audio.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/can.h b/components/drivers/include/drivers/can.h
index d4fcc845b4..bb05317d4f 100644
--- a/components/drivers/include/drivers/can.h
+++ b/components/drivers/include/drivers/can.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/cputime.h b/components/drivers/include/drivers/cputime.h
index 78c22fc1da..0141f24805 100644
--- a/components/drivers/include/drivers/cputime.h
+++ b/components/drivers/include/drivers/cputime.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/crypto.h b/components/drivers/include/drivers/crypto.h
index 5341d9ee48..8270a78b09 100644
--- a/components/drivers/include/drivers/crypto.h
+++ b/components/drivers/include/drivers/crypto.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/dac.h b/components/drivers/include/drivers/dac.h
index b6043348dc..7d5ff3592a 100644
--- a/components/drivers/include/drivers/dac.h
+++ b/components/drivers/include/drivers/dac.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/hwtimer.h b/components/drivers/include/drivers/hwtimer.h
index d00dbd8a13..0bf4893790 100644
--- a/components/drivers/include/drivers/hwtimer.h
+++ b/components/drivers/include/drivers/hwtimer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/i2c-bit-ops.h b/components/drivers/include/drivers/i2c-bit-ops.h
index ddf9a36d73..0d94de114a 100644
--- a/components/drivers/include/drivers/i2c-bit-ops.h
+++ b/components/drivers/include/drivers/i2c-bit-ops.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/i2c.h b/components/drivers/include/drivers/i2c.h
index d93e82fc2b..50ce021d53 100644
--- a/components/drivers/include/drivers/i2c.h
+++ b/components/drivers/include/drivers/i2c.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/i2c_dev.h b/components/drivers/include/drivers/i2c_dev.h
index 5ef9dd1a8c..94f110c055 100644
--- a/components/drivers/include/drivers/i2c_dev.h
+++ b/components/drivers/include/drivers/i2c_dev.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/mmc.h b/components/drivers/include/drivers/mmc.h
index 95dce7178a..d472bbbc5d 100644
--- a/components/drivers/include/drivers/mmc.h
+++ b/components/drivers/include/drivers/mmc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -22,163 +22,163 @@ extern "C" {
  * EXT_CSD fields
  */
 
-#define EXT_CSD_FLUSH_CACHE		32      /* W */
-#define EXT_CSD_CACHE_CTRL		33      /* R/W */
-#define EXT_CSD_POWER_OFF_NOTIFICATION	34	/* R/W */
-#define EXT_CSD_PACKED_FAILURE_INDEX	35	/* RO */
-#define EXT_CSD_PACKED_CMD_STATUS	36	/* RO */
-#define EXT_CSD_EXP_EVENTS_STATUS	54	/* RO, 2 bytes */
-#define EXT_CSD_EXP_EVENTS_CTRL		56	/* R/W, 2 bytes */
-#define EXT_CSD_DATA_SECTOR_SIZE	61	/* R */
-#define EXT_CSD_GP_SIZE_MULT		143	/* R/W */
-#define EXT_CSD_PARTITION_ATTRIBUTE	156	/* R/W */
-#define EXT_CSD_PARTITION_SUPPORT	160	/* RO */
-#define EXT_CSD_HPI_MGMT		161	/* R/W */
-#define EXT_CSD_RST_N_FUNCTION		162	/* R/W */
-#define EXT_CSD_BKOPS_EN		163	/* R/W */
-#define EXT_CSD_BKOPS_START		164	/* W */
-#define EXT_CSD_SANITIZE_START		165     /* W */
-#define EXT_CSD_WR_REL_PARAM		166	/* RO */
-#define EXT_CSD_RPMB_MULT		168	/* RO */
-#define EXT_CSD_BOOT_WP			173	/* R/W */
-#define EXT_CSD_ERASE_GROUP_DEF		175	/* R/W */
-#define EXT_CSD_PART_CONFIG		179	/* R/W */
-#define EXT_CSD_ERASED_MEM_CONT		181	/* RO */
-#define EXT_CSD_BUS_WIDTH		183	/* R/W */
-#define EXT_CSD_HS_TIMING		185	/* R/W */
-#define EXT_CSD_POWER_CLASS		187	/* R/W */
-#define EXT_CSD_REV			192	/* RO */
-#define EXT_CSD_STRUCTURE		194	/* RO */
-#define EXT_CSD_CARD_TYPE		196	/* RO */
-#define EXT_CSD_OUT_OF_INTERRUPT_TIME	198	/* RO */
+#define EXT_CSD_FLUSH_CACHE     32      /* W */
+#define EXT_CSD_CACHE_CTRL      33      /* R/W */
+#define EXT_CSD_POWER_OFF_NOTIFICATION  34  /* R/W */
+#define EXT_CSD_PACKED_FAILURE_INDEX    35  /* RO */
+#define EXT_CSD_PACKED_CMD_STATUS   36  /* RO */
+#define EXT_CSD_EXP_EVENTS_STATUS   54  /* RO, 2 bytes */
+#define EXT_CSD_EXP_EVENTS_CTRL     56  /* R/W, 2 bytes */
+#define EXT_CSD_DATA_SECTOR_SIZE    61  /* R */
+#define EXT_CSD_GP_SIZE_MULT        143 /* R/W */
+#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */
+#define EXT_CSD_PARTITION_SUPPORT   160 /* RO */
+#define EXT_CSD_HPI_MGMT        161 /* R/W */
+#define EXT_CSD_RST_N_FUNCTION      162 /* R/W */
+#define EXT_CSD_BKOPS_EN        163 /* R/W */
+#define EXT_CSD_BKOPS_START     164 /* W */
+#define EXT_CSD_SANITIZE_START      165     /* W */
+#define EXT_CSD_WR_REL_PARAM        166 /* RO */
+#define EXT_CSD_RPMB_MULT       168 /* RO */
+#define EXT_CSD_BOOT_WP         173 /* R/W */
+#define EXT_CSD_ERASE_GROUP_DEF     175 /* R/W */
+#define EXT_CSD_PART_CONFIG     179 /* R/W */
+#define EXT_CSD_ERASED_MEM_CONT     181 /* RO */
+#define EXT_CSD_BUS_WIDTH       183 /* R/W */
+#define EXT_CSD_HS_TIMING       185 /* R/W */
+#define EXT_CSD_POWER_CLASS     187 /* R/W */
+#define EXT_CSD_REV         192 /* RO */
+#define EXT_CSD_STRUCTURE       194 /* RO */
+#define EXT_CSD_CARD_TYPE       196 /* RO */
+#define EXT_CSD_OUT_OF_INTERRUPT_TIME   198 /* RO */
 #define EXT_CSD_PART_SWITCH_TIME        199     /* RO */
-#define EXT_CSD_PWR_CL_52_195		200	/* RO */
-#define EXT_CSD_PWR_CL_26_195		201	/* RO */
-#define EXT_CSD_PWR_CL_52_360		202	/* RO */
-#define EXT_CSD_PWR_CL_26_360		203	/* RO */
-#define EXT_CSD_SEC_CNT			212	/* RO, 4 bytes */
-#define EXT_CSD_S_A_TIMEOUT		217	/* RO */
-#define EXT_CSD_REL_WR_SEC_C		222	/* RO */
-#define EXT_CSD_HC_WP_GRP_SIZE		221	/* RO */
-#define EXT_CSD_ERASE_TIMEOUT_MULT	223	/* RO */
-#define EXT_CSD_HC_ERASE_GRP_SIZE	224	/* RO */
-#define EXT_CSD_BOOT_MULT		226	/* RO */
-#define EXT_CSD_SEC_TRIM_MULT		229	/* RO */
-#define EXT_CSD_SEC_ERASE_MULT		230	/* RO */
-#define EXT_CSD_SEC_FEATURE_SUPPORT	231	/* RO */
-#define EXT_CSD_TRIM_MULT		232	/* RO */
-#define EXT_CSD_PWR_CL_200_195		236	/* RO */
-#define EXT_CSD_PWR_CL_200_360		237	/* RO */
-#define EXT_CSD_PWR_CL_DDR_52_195	238	/* RO */
-#define EXT_CSD_PWR_CL_DDR_52_360	239	/* RO */
-#define EXT_CSD_BKOPS_STATUS		246	/* RO */
-#define EXT_CSD_POWER_OFF_LONG_TIME	247	/* RO */
-#define EXT_CSD_GENERIC_CMD6_TIME	248	/* RO */
-#define EXT_CSD_CACHE_SIZE		249	/* RO, 4 bytes */
-#define EXT_CSD_PWR_CL_DDR_200_360	253	/* RO */
-#define EXT_CSD_TAG_UNIT_SIZE		498	/* RO */
-#define EXT_CSD_DATA_TAG_SUPPORT	499	/* RO */
-#define EXT_CSD_MAX_PACKED_WRITES	500	/* RO */
-#define EXT_CSD_MAX_PACKED_READS	501	/* RO */
-#define EXT_CSD_BKOPS_SUPPORT		502	/* RO */
-#define EXT_CSD_HPI_FEATURES		503	/* RO */
+#define EXT_CSD_PWR_CL_52_195       200 /* RO */
+#define EXT_CSD_PWR_CL_26_195       201 /* RO */
+#define EXT_CSD_PWR_CL_52_360       202 /* RO */
+#define EXT_CSD_PWR_CL_26_360       203 /* RO */
+#define EXT_CSD_SEC_CNT         212 /* RO, 4 bytes */
+#define EXT_CSD_S_A_TIMEOUT     217 /* RO */
+#define EXT_CSD_REL_WR_SEC_C        222 /* RO */
+#define EXT_CSD_HC_WP_GRP_SIZE      221 /* RO */
+#define EXT_CSD_ERASE_TIMEOUT_MULT  223 /* RO */
+#define EXT_CSD_HC_ERASE_GRP_SIZE   224 /* RO */
+#define EXT_CSD_BOOT_MULT       226 /* RO */
+#define EXT_CSD_SEC_TRIM_MULT       229 /* RO */
+#define EXT_CSD_SEC_ERASE_MULT      230 /* RO */
+#define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */
+#define EXT_CSD_TRIM_MULT       232 /* RO */
+#define EXT_CSD_PWR_CL_200_195      236 /* RO */
+#define EXT_CSD_PWR_CL_200_360      237 /* RO */
+#define EXT_CSD_PWR_CL_DDR_52_195   238 /* RO */
+#define EXT_CSD_PWR_CL_DDR_52_360   239 /* RO */
+#define EXT_CSD_BKOPS_STATUS        246 /* RO */
+#define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */
+#define EXT_CSD_GENERIC_CMD6_TIME   248 /* RO */
+#define EXT_CSD_CACHE_SIZE      249 /* RO, 4 bytes */
+#define EXT_CSD_PWR_CL_DDR_200_360  253 /* RO */
+#define EXT_CSD_TAG_UNIT_SIZE       498 /* RO */
+#define EXT_CSD_DATA_TAG_SUPPORT    499 /* RO */
+#define EXT_CSD_MAX_PACKED_WRITES   500 /* RO */
+#define EXT_CSD_MAX_PACKED_READS    501 /* RO */
+#define EXT_CSD_BKOPS_SUPPORT       502 /* RO */
+#define EXT_CSD_HPI_FEATURES        503 /* RO */
 
 /*
  * EXT_CSD field definitions
  */
 
-#define EXT_CSD_WR_REL_PARAM_EN		(1<<2)
+#define EXT_CSD_WR_REL_PARAM_EN     (1<<2)
 
-#define EXT_CSD_BOOT_WP_B_PWR_WP_DIS	(0x40)
-#define EXT_CSD_BOOT_WP_B_PERM_WP_DIS	(0x10)
-#define EXT_CSD_BOOT_WP_B_PERM_WP_EN	(0x04)
-#define EXT_CSD_BOOT_WP_B_PWR_WP_EN	(0x01)
+#define EXT_CSD_BOOT_WP_B_PWR_WP_DIS    (0x40)
+#define EXT_CSD_BOOT_WP_B_PERM_WP_DIS   (0x10)
+#define EXT_CSD_BOOT_WP_B_PERM_WP_EN    (0x04)
+#define EXT_CSD_BOOT_WP_B_PWR_WP_EN (0x01)
 
-#define EXT_CSD_PART_CONFIG_ACC_MASK	(0x7)
-#define EXT_CSD_PART_CONFIG_ACC_BOOT0	(0x1)
-#define EXT_CSD_PART_CONFIG_ACC_RPMB	(0x3)
-#define EXT_CSD_PART_CONFIG_ACC_GP0	(0x4)
+#define EXT_CSD_PART_CONFIG_ACC_MASK    (0x7)
+#define EXT_CSD_PART_CONFIG_ACC_BOOT0   (0x1)
+#define EXT_CSD_PART_CONFIG_ACC_RPMB    (0x3)
+#define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4)
 
-#define EXT_CSD_PART_SUPPORT_PART_EN	(0x1)
+#define EXT_CSD_PART_SUPPORT_PART_EN    (0x1)
 
-#define EXT_CSD_CMD_SET_NORMAL		(1<<0)
-#define EXT_CSD_CMD_SET_SECURE		(1<<1)
-#define EXT_CSD_CMD_SET_CPSECURE	(1<<2)
+#define EXT_CSD_CMD_SET_NORMAL      (1<<0)
+#define EXT_CSD_CMD_SET_SECURE      (1<<1)
+#define EXT_CSD_CMD_SET_CPSECURE    (1<<2)
 
-#define EXT_CSD_CARD_TYPE_HS_26	        (1<<0)	/* Card can run at 26MHz */
-#define EXT_CSD_CARD_TYPE_HS_52	        (1<<1)	/* Card can run at 52MHz */
-#define EXT_CSD_CARD_TYPE_HS	        (EXT_CSD_CARD_TYPE_HS_26 | \
+#define EXT_CSD_CARD_TYPE_HS_26         (1<<0)  /* Card can run at 26MHz */
+#define EXT_CSD_CARD_TYPE_HS_52         (1<<1)  /* Card can run at 52MHz */
+#define EXT_CSD_CARD_TYPE_HS            (EXT_CSD_CARD_TYPE_HS_26 | \
                                             EXT_CSD_CARD_TYPE_HS_52)
 #define EXT_CSD_CARD_TYPE_DDR_1_8V      (1<<2)   /* Card can run at 52MHz */
                                                     /* DDR mode @1.8V or 3V I/O */
 #define EXT_CSD_CARD_TYPE_DDR_1_2V      (1<<3)   /* Card can run at 52MHz */
-					     /* DDR mode @1.2V I/O */
+                         /* DDR mode @1.2V I/O */
 #define EXT_CSD_CARD_TYPE_DDR_52        (EXT_CSD_CARD_TYPE_DDR_1_8V  \
                                             | EXT_CSD_CARD_TYPE_DDR_1_2V)
-#define EXT_CSD_CARD_TYPE_HS200_1_8V	(1<<4)	/* Card can run at 200MHz */
-#define EXT_CSD_CARD_TYPE_HS200_1_2V	(1<<5)	/* Card can run at 200MHz */
-						/* SDR mode @1.2V I/O */
-#define EXT_CSD_CARD_TYPE_HS200		(EXT_CSD_CARD_TYPE_HS200_1_8V | \
-					 EXT_CSD_CARD_TYPE_HS200_1_2V)
-#define EXT_CSD_CARD_TYPE_HS400_1_8V	(1<<6)	/* Card can run at 200MHz DDR, 1.8V */
-#define EXT_CSD_CARD_TYPE_HS400_1_2V	(1<<7)	/* Card can run at 200MHz DDR, 1.2V */
-#define EXT_CSD_CARD_TYPE_HS400		(EXT_CSD_CARD_TYPE_HS400_1_8V | \
-					 EXT_CSD_CARD_TYPE_HS400_1_2V)
+#define EXT_CSD_CARD_TYPE_HS200_1_8V    (1<<4)  /* Card can run at 200MHz */
+#define EXT_CSD_CARD_TYPE_HS200_1_2V    (1<<5)  /* Card can run at 200MHz */
+                        /* SDR mode @1.2V I/O */
+#define EXT_CSD_CARD_TYPE_HS200     (EXT_CSD_CARD_TYPE_HS200_1_8V | \
+                     EXT_CSD_CARD_TYPE_HS200_1_2V)
+#define EXT_CSD_CARD_TYPE_HS400_1_8V    (1<<6)  /* Card can run at 200MHz DDR, 1.8V */
+#define EXT_CSD_CARD_TYPE_HS400_1_2V    (1<<7)  /* Card can run at 200MHz DDR, 1.2V */
+#define EXT_CSD_CARD_TYPE_HS400     (EXT_CSD_CARD_TYPE_HS400_1_8V | \
+                     EXT_CSD_CARD_TYPE_HS400_1_2V)
 
-#define EXT_CSD_BUS_WIDTH_1	        0	/* Card is in 1 bit mode */
-#define EXT_CSD_BUS_WIDTH_4	        1	/* Card is in 4 bit mode */
-#define EXT_CSD_BUS_WIDTH_8	        2	/* Card is in 8 bit mode */
-#define EXT_CSD_DDR_BUS_WIDTH_4	        5	/* Card is in 4 bit DDR mode */
-#define EXT_CSD_DDR_BUS_WIDTH_8	        6	/* Card is in 8 bit DDR mode */
+#define EXT_CSD_BUS_WIDTH_1         0   /* Card is in 1 bit mode */
+#define EXT_CSD_BUS_WIDTH_4         1   /* Card is in 4 bit mode */
+#define EXT_CSD_BUS_WIDTH_8         2   /* Card is in 8 bit mode */
+#define EXT_CSD_DDR_BUS_WIDTH_4         5   /* Card is in 4 bit DDR mode */
+#define EXT_CSD_DDR_BUS_WIDTH_8         6   /* Card is in 8 bit DDR mode */
 
-#define EXT_CSD_TIMING_BC	        0	/* Backwards compatility */
-#define EXT_CSD_TIMING_HS	        1	/* High speed */
-#define EXT_CSD_TIMING_HS200	        2	/* HS200 */
-#define EXT_CSD_TIMING_HS400	        3	/* HS400 */
+#define EXT_CSD_TIMING_BC           0   /* Backwards compatility */
+#define EXT_CSD_TIMING_HS           1   /* High speed */
+#define EXT_CSD_TIMING_HS200            2   /* HS200 */
+#define EXT_CSD_TIMING_HS400            3   /* HS400 */
 
-#define EXT_CSD_SEC_ER_EN	        BIT(0)
-#define EXT_CSD_SEC_BD_BLK_EN	        BIT(2)
-#define EXT_CSD_SEC_GB_CL_EN	        BIT(4)
-#define EXT_CSD_SEC_SANITIZE	        BIT(6)  /* v4.5 only */
+#define EXT_CSD_SEC_ER_EN           BIT(0)
+#define EXT_CSD_SEC_BD_BLK_EN           BIT(2)
+#define EXT_CSD_SEC_GB_CL_EN            BIT(4)
+#define EXT_CSD_SEC_SANITIZE            BIT(6)  /* v4.5 only */
 
-#define EXT_CSD_RST_N_EN_MASK	        0x3
-#define EXT_CSD_RST_N_ENABLED	        1	/* RST_n is enabled on card */
+#define EXT_CSD_RST_N_EN_MASK           0x3
+#define EXT_CSD_RST_N_ENABLED           1   /* RST_n is enabled on card */
 
-#define EXT_CSD_NO_POWER_NOTIFICATION	0
-#define EXT_CSD_POWER_ON		1
-#define EXT_CSD_POWER_OFF_SHORT		2
-#define EXT_CSD_POWER_OFF_LONG		3
+#define EXT_CSD_NO_POWER_NOTIFICATION   0
+#define EXT_CSD_POWER_ON        1
+#define EXT_CSD_POWER_OFF_SHORT     2
+#define EXT_CSD_POWER_OFF_LONG      3
 
-#define EXT_CSD_PWR_CL_8BIT_MASK	0xF0	/* 8 bit PWR CLS */
-#define EXT_CSD_PWR_CL_4BIT_MASK	0x0F	/* 8 bit PWR CLS */
-#define EXT_CSD_PWR_CL_8BIT_SHIFT	4
-#define EXT_CSD_PWR_CL_4BIT_SHIFT	0
+#define EXT_CSD_PWR_CL_8BIT_MASK    0xF0    /* 8 bit PWR CLS */
+#define EXT_CSD_PWR_CL_4BIT_MASK    0x0F    /* 8 bit PWR CLS */
+#define EXT_CSD_PWR_CL_8BIT_SHIFT   4
+#define EXT_CSD_PWR_CL_4BIT_SHIFT   0
 
-#define EXT_CSD_PACKED_EVENT_EN	BIT(3)
+#define EXT_CSD_PACKED_EVENT_EN BIT(3)
 
 /*
  * EXCEPTION_EVENT_STATUS field
  */
-#define EXT_CSD_URGENT_BKOPS		BIT(0)
-#define EXT_CSD_DYNCAP_NEEDED		BIT(1)
-#define EXT_CSD_SYSPOOL_EXHAUSTED	BIT(2)
-#define EXT_CSD_PACKED_FAILURE		BIT(3)
+#define EXT_CSD_URGENT_BKOPS        BIT(0)
+#define EXT_CSD_DYNCAP_NEEDED       BIT(1)
+#define EXT_CSD_SYSPOOL_EXHAUSTED   BIT(2)
+#define EXT_CSD_PACKED_FAILURE      BIT(3)
 
-#define EXT_CSD_PACKED_GENERIC_ERROR	BIT(0)
-#define EXT_CSD_PACKED_INDEXED_ERROR	BIT(1)
+#define EXT_CSD_PACKED_GENERIC_ERROR    BIT(0)
+#define EXT_CSD_PACKED_INDEXED_ERROR    BIT(1)
 
 /*
  * BKOPS status level
  */
-#define EXT_CSD_BKOPS_LEVEL_2		0x2
+#define EXT_CSD_BKOPS_LEVEL_2       0x2
 /*
  * MMC_SWITCH access modes
  */
-#define MMC_SWITCH_MODE_CMD_SET		0x00	/* Change the command set */
-#define MMC_SWITCH_MODE_SET_BITS	0x01	/* Set bits which are 1 in value */
-#define MMC_SWITCH_MODE_CLEAR_BITS	0x02	/* Clear bits which are 1 in value */
-#define MMC_SWITCH_MODE_WRITE_BYTE	0x03	/* Set target to value */
- 
+#define MMC_SWITCH_MODE_CMD_SET     0x00    /* Change the command set */
+#define MMC_SWITCH_MODE_SET_BITS    0x01    /* Set bits which are 1 in value */
+#define MMC_SWITCH_MODE_CLEAR_BITS  0x02    /* Clear bits which are 1 in value */
+#define MMC_SWITCH_MODE_WRITE_BYTE  0x03    /* Set target to value */
+
 /*
  * extern function
  */
diff --git a/components/drivers/include/drivers/mmcsd_card.h b/components/drivers/include/drivers/mmcsd_card.h
index 3ee5a20465..511cc1167d 100644
--- a/components/drivers/include/drivers/mmcsd_card.h
+++ b/components/drivers/include/drivers/mmcsd_card.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
- * Date           Author		Notes
- * 2011-07-25     weety		first version
+ * Date           Author        Notes
+ * 2011-07-25     weety     first version
  */
 
 #ifndef __MMCSD_CARD_H__
@@ -17,87 +17,87 @@
 extern "C" {
 #endif
 
-#define SD_SCR_BUS_WIDTH_1	(1 << 0)
-#define SD_SCR_BUS_WIDTH_4	(1 << 2)
+#define SD_SCR_BUS_WIDTH_1  (1 << 0)
+#define SD_SCR_BUS_WIDTH_4  (1 << 2)
 
 struct rt_mmcsd_cid {
-	rt_uint8_t  mid;       /* ManufacturerID */
-	rt_uint8_t  prv;       /* Product Revision */
-	rt_uint16_t oid;       /* OEM/Application ID */
-	rt_uint32_t psn;       /* Product Serial Number */
-	rt_uint8_t  pnm[5];    /* Product Name */
-	rt_uint8_t  reserved1;/* reserved */
-	rt_uint16_t mdt;       /* Manufacturing Date */
-	rt_uint8_t  crc;       /* CID CRC */
-	rt_uint8_t  reserved2;/* not used, always 1 */
+    rt_uint8_t  mid;       /* ManufacturerID */
+    rt_uint8_t  prv;       /* Product Revision */
+    rt_uint16_t oid;       /* OEM/Application ID */
+    rt_uint32_t psn;       /* Product Serial Number */
+    rt_uint8_t  pnm[5];    /* Product Name */
+    rt_uint8_t  reserved1;/* reserved */
+    rt_uint16_t mdt;       /* Manufacturing Date */
+    rt_uint8_t  crc;       /* CID CRC */
+    rt_uint8_t  reserved2;/* not used, always 1 */
 };
 
 struct rt_mmcsd_csd {
-	rt_uint8_t		csd_structure;	/* CSD register version */
-	rt_uint8_t		taac;
-	rt_uint8_t		nsac;
-	rt_uint8_t		tran_speed;	/* max data transfer rate */
-	rt_uint16_t		card_cmd_class;	/* card command classes */
-	rt_uint8_t		rd_blk_len;	/* max read data block length */
-	rt_uint8_t		rd_blk_part;
-	rt_uint8_t		wr_blk_misalign;
-	rt_uint8_t		rd_blk_misalign;
-	rt_uint8_t		dsr_imp;	/* DSR implemented */
-	rt_uint8_t		c_size_mult;	/* CSD 1.0 , device size multiplier */
-	rt_uint32_t		c_size;		/* device size */
-	rt_uint8_t		r2w_factor;
-	rt_uint8_t		wr_blk_len;	/* max wtire data block length */
-	rt_uint8_t		wr_blk_partial;
-	rt_uint8_t		csd_crc;
-	
+    rt_uint8_t      csd_structure;  /* CSD register version */
+    rt_uint8_t      taac;
+    rt_uint8_t      nsac;
+    rt_uint8_t      tran_speed; /* max data transfer rate */
+    rt_uint16_t     card_cmd_class; /* card command classes */
+    rt_uint8_t      rd_blk_len; /* max read data block length */
+    rt_uint8_t      rd_blk_part;
+    rt_uint8_t      wr_blk_misalign;
+    rt_uint8_t      rd_blk_misalign;
+    rt_uint8_t      dsr_imp;    /* DSR implemented */
+    rt_uint8_t      c_size_mult;    /* CSD 1.0 , device size multiplier */
+    rt_uint32_t     c_size;     /* device size */
+    rt_uint8_t      r2w_factor;
+    rt_uint8_t      wr_blk_len; /* max wtire data block length */
+    rt_uint8_t      wr_blk_partial;
+    rt_uint8_t      csd_crc;
+
 };
 
 struct rt_sd_scr {
-	rt_uint8_t		sd_version;
-	rt_uint8_t		sd_bus_widths;
+    rt_uint8_t      sd_version;
+    rt_uint8_t      sd_bus_widths;
 };
 
 struct rt_sdio_cccr {
-	rt_uint8_t		sdio_version;
-	rt_uint8_t		sd_version;
-	rt_uint8_t		direct_cmd:1,     /*  Card Supports Direct Commands during data transfer
-	                                               only SD mode, not used for SPI mode */
-				multi_block:1,    /*  Card Supports Multi-Block */
-				read_wait:1,      /*  Card Supports Read Wait
-				                       only SD mode, not used for SPI mode */
-				suspend_resume:1, /*  Card supports Suspend/Resume
-				                       only SD mode, not used for SPI mode */
-				s4mi:1,            /* generate interrupts during a 4-bit 
-				                      multi-block data transfer */
-				e4mi:1,            /*  Enable the multi-block IRQ during 
-				                       4-bit transfer for the SDIO card */
-				low_speed:1,      /*  Card  is  a  Low-Speed  card */
-				low_speed_4:1;    /*  4-bit support for Low-Speed cards */
+    rt_uint8_t      sdio_version;
+    rt_uint8_t      sd_version;
+    rt_uint8_t      direct_cmd:1,     /*  Card Supports Direct Commands during data transfer
+                                                   only SD mode, not used for SPI mode */
+                multi_block:1,    /*  Card Supports Multi-Block */
+                read_wait:1,      /*  Card Supports Read Wait
+                                       only SD mode, not used for SPI mode */
+                suspend_resume:1, /*  Card supports Suspend/Resume
+                                       only SD mode, not used for SPI mode */
+                s4mi:1,            /* generate interrupts during a 4-bit
+                                      multi-block data transfer */
+                e4mi:1,            /*  Enable the multi-block IRQ during
+                                       4-bit transfer for the SDIO card */
+                low_speed:1,      /*  Card  is  a  Low-Speed  card */
+                low_speed_4:1;    /*  4-bit support for Low-Speed cards */
+
+    rt_uint8_t      bus_width:1,     /* Support SDIO bus width, 1:4bit, 0:1bit */
+                cd_disable:1,    /*  Connect[0]/Disconnect[1] the 10K-90K ohm pull-up
+                                     resistor on CD/DAT[3] (pin 1) of the card */
+                power_ctrl:1,    /* Support Master Power Control */
+                high_speed:1;    /* Support High-Speed  */
+
 
-	rt_uint8_t		bus_width:1,     /* Support SDIO bus width, 1:4bit, 0:1bit */
-				cd_disable:1,    /*  Connect[0]/Disconnect[1] the 10K-90K ohm pull-up 
-				                     resistor on CD/DAT[3] (pin 1) of the card */
-				power_ctrl:1,    /* Support Master Power Control */
-				high_speed:1;    /* Support High-Speed  */
-				
-				
 };
 
 struct rt_sdio_cis {
-	rt_uint16_t		manufacturer;
-	rt_uint16_t		product;
-	rt_uint16_t		func0_blk_size;
-	rt_uint32_t		max_tran_speed;
+    rt_uint16_t     manufacturer;
+    rt_uint16_t     product;
+    rt_uint16_t     func0_blk_size;
+    rt_uint32_t     max_tran_speed;
 };
 
 /*
  * SDIO function CIS tuple (unknown to the core)
  */
 struct rt_sdio_function_tuple {
-	struct rt_sdio_function_tuple *next;
-	rt_uint8_t code;
-	rt_uint8_t size;
-	rt_uint8_t *data;
+    struct rt_sdio_function_tuple *next;
+    rt_uint8_t code;
+    rt_uint8_t size;
+    rt_uint8_t *data;
 };
 
 struct rt_sdio_function;
@@ -107,60 +107,60 @@ typedef void (rt_sdio_irq_handler_t)(struct rt_sdio_function *);
  * SDIO function devices
  */
 struct rt_sdio_function {
-	struct rt_mmcsd_card		*card;		/* the card this device belongs to */
-	rt_sdio_irq_handler_t	*irq_handler;	/* IRQ callback */
-	rt_uint8_t		num;		/* function number */
+    struct rt_mmcsd_card        *card;      /* the card this device belongs to */
+    rt_sdio_irq_handler_t   *irq_handler;   /* IRQ callback */
+    rt_uint8_t      num;        /* function number */
 
-	rt_uint8_t		func_code;   /*  Standard SDIO Function interface code  */
-	rt_uint16_t		manufacturer;		/* manufacturer id */
-	rt_uint16_t		product;		/* product id */
+    rt_uint8_t      func_code;   /*  Standard SDIO Function interface code  */
+    rt_uint16_t     manufacturer;       /* manufacturer id */
+    rt_uint16_t     product;        /* product id */
 
-	rt_uint32_t		max_blk_size;	/* maximum block size */
-	rt_uint32_t		cur_blk_size;	/* current block size */
+    rt_uint32_t     max_blk_size;   /* maximum block size */
+    rt_uint32_t     cur_blk_size;   /* current block size */
 
-	rt_uint32_t		enable_timeout_val; /* max enable timeout in msec */
+    rt_uint32_t     enable_timeout_val; /* max enable timeout in msec */
+
+    struct rt_sdio_function_tuple *tuples;
 
-	struct rt_sdio_function_tuple *tuples;
-    
     void            *priv;
 };
 
-#define SDIO_MAX_FUNCTIONS		7
+#define SDIO_MAX_FUNCTIONS      7
 
 
 
 struct rt_mmcsd_card {
-	struct rt_mmcsd_host *host;
-	rt_uint32_t	rca;		/* card addr */
-	rt_uint32_t	resp_cid[4];	/* card CID register */
-	rt_uint32_t	resp_csd[4];	/* card CSD register */
-	rt_uint32_t	resp_scr[2];	/* card SCR register */
+    struct rt_mmcsd_host *host;
+    rt_uint32_t rca;        /* card addr */
+    rt_uint32_t resp_cid[4];    /* card CID register */
+    rt_uint32_t resp_csd[4];    /* card CSD register */
+    rt_uint32_t resp_scr[2];    /* card SCR register */
 
-	rt_uint16_t	tacc_clks;	/* data access time by ns */
-	rt_uint32_t	tacc_ns;	/* data access time by clk cycles */
-	rt_uint32_t	max_data_rate;	/* max data transfer rate */
-	rt_uint32_t	card_capacity;	/* card capacity, unit:KB */
-	rt_uint32_t	card_blksize;	/* card block size */
-	rt_uint32_t	erase_size;	/* erase size in sectors */
-	rt_uint16_t	card_type;
+    rt_uint16_t tacc_clks;  /* data access time by ns */
+    rt_uint32_t tacc_ns;    /* data access time by clk cycles */
+    rt_uint32_t max_data_rate;  /* max data transfer rate */
+    rt_uint32_t card_capacity;  /* card capacity, unit:KB */
+    rt_uint32_t card_blksize;   /* card block size */
+    rt_uint32_t erase_size; /* erase size in sectors */
+    rt_uint16_t card_type;
 #define CARD_TYPE_MMC                   0 /* MMC card */
 #define CARD_TYPE_SD                    1 /* SD card */
 #define CARD_TYPE_SDIO                  2 /* SDIO card */
 #define CARD_TYPE_SDIO_COMBO            3 /* SD combo (IO+mem) card */
 
-	rt_uint16_t flags;
+    rt_uint16_t flags;
 #define CARD_FLAG_HIGHSPEED  (1 << 0)   /* SDIO bus speed 50MHz */
 #define CARD_FLAG_SDHC       (1 << 1)   /* SDHC card */
 #define CARD_FLAG_SDXC       (1 << 2)   /* SDXC card */
 
-	struct rt_sd_scr	scr;
-	struct rt_mmcsd_csd	csd;
-	rt_uint32_t     hs_max_data_rate;  /* max data transfer rate in high speed mode */
+    struct rt_sd_scr    scr;
+    struct rt_mmcsd_csd csd;
+    rt_uint32_t     hs_max_data_rate;  /* max data transfer rate in high speed mode */
 
-	rt_uint8_t      sdio_function_num;	/* totol number of SDIO functions */
-	struct rt_sdio_cccr    cccr;  /* common card info */
-	struct rt_sdio_cis     cis;  /* common tuple info */
-	struct rt_sdio_function	*sdio_function[SDIO_MAX_FUNCTIONS + 1]; /* SDIO functions (devices) */
+    rt_uint8_t      sdio_function_num;  /* totol number of SDIO functions */
+    struct rt_sdio_cccr    cccr;  /* common card info */
+    struct rt_sdio_cis     cis;  /* common tuple info */
+    struct rt_sdio_function *sdio_function[SDIO_MAX_FUNCTIONS + 1]; /* SDIO functions (devices) */
 
 };
 
diff --git a/components/drivers/include/drivers/mmcsd_cmd.h b/components/drivers/include/drivers/mmcsd_cmd.h
index 7c2f26e892..2993fe5406 100644
--- a/components/drivers/include/drivers/mmcsd_cmd.h
+++ b/components/drivers/include/drivers/mmcsd_cmd.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
- * Date           Author		Notes
- * 2011-07-25     weety		first version
+ * Date           Author        Notes
+ * 2011-07-25     weety     first version
  */
 
 #ifndef __CMD_H__
@@ -85,9 +85,9 @@ extern "C" {
 #define SD_APP_OP_COND           41   /* bcr  [31:0] OCR         R3  */
 #define SD_APP_SEND_SCR          51   /* adtc                    R1  */
 
-#define SCR_SPEC_VER_0		0	/* Implements system specification 1.0 - 1.01 */
-#define SCR_SPEC_VER_1		1	/* Implements system specification 1.10 */
-#define SCR_SPEC_VER_2		2	/* Implements system specification 2.00 */
+#define SCR_SPEC_VER_0      0   /* Implements system specification 1.0 - 1.01 */
+#define SCR_SPEC_VER_1      1   /* Implements system specification 1.10 */
+#define SCR_SPEC_VER_2      2   /* Implements system specification 2.00 */
 
 
 /* SDIO commands                                          type  argument     response */
diff --git a/components/drivers/include/drivers/mmcsd_core.h b/components/drivers/include/drivers/mmcsd_core.h
index 05a5af6d79..11b1386b23 100644
--- a/components/drivers/include/drivers/mmcsd_core.h
+++ b/components/drivers/include/drivers/mmcsd_core.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
- * Date           Author		Notes
- * 2011-07-25     weety		first version
+ * Date           Author        Notes
+ * 2011-07-25     weety     first version
  */
 
 #ifndef __CORE_H__
@@ -27,139 +27,139 @@ extern "C" {
 #endif
 
 struct rt_mmcsd_data {
-	rt_uint32_t  blksize;
-	rt_uint32_t  blks;
-	rt_uint32_t  *buf;
-	rt_int32_t  err;
-	rt_uint32_t  flags;
-#define DATA_DIR_WRITE	(1 << 0)
-#define DATA_DIR_READ	(1 << 1)
-#define DATA_STREAM	(1 << 2)
+    rt_uint32_t  blksize;
+    rt_uint32_t  blks;
+    rt_uint32_t  *buf;
+    rt_int32_t  err;
+    rt_uint32_t  flags;
+#define DATA_DIR_WRITE  (1 << 0)
+#define DATA_DIR_READ   (1 << 1)
+#define DATA_STREAM (1 << 2)
 
-	unsigned int		bytes_xfered;
+    unsigned int        bytes_xfered;
 
-	struct rt_mmcsd_cmd	*stop;		/* stop command */
-	struct rt_mmcsd_req	*mrq;		/* associated request */
+    struct rt_mmcsd_cmd *stop;      /* stop command */
+    struct rt_mmcsd_req *mrq;       /* associated request */
 
-	rt_uint32_t  timeout_ns;
-	rt_uint32_t  timeout_clks;
+    rt_uint32_t  timeout_ns;
+    rt_uint32_t  timeout_clks;
 };
 
 struct rt_mmcsd_cmd {
-	rt_uint32_t  cmd_code;
-	rt_uint32_t  arg;
-	rt_uint32_t  resp[4];
-	rt_uint32_t  flags;
-/*rsponse types 
+    rt_uint32_t  cmd_code;
+    rt_uint32_t  arg;
+    rt_uint32_t  resp[4];
+    rt_uint32_t  flags;
+/*rsponse types
  *bits:0~3
  */
-#define RESP_MASK	(0xF)
-#define RESP_NONE	(0)
-#define RESP_R1		(1 << 0)
-#define RESP_R1B	(2 << 0)
-#define RESP_R2		(3 << 0)
-#define RESP_R3		(4 << 0)
-#define RESP_R4		(5 << 0)
-#define RESP_R6		(6 << 0)
-#define RESP_R7		(7 << 0)
-#define RESP_R5		(8 << 0)	/*SDIO command response type*/
-/*command types 
+#define RESP_MASK   (0xF)
+#define RESP_NONE   (0)
+#define RESP_R1     (1 << 0)
+#define RESP_R1B    (2 << 0)
+#define RESP_R2     (3 << 0)
+#define RESP_R3     (4 << 0)
+#define RESP_R4     (5 << 0)
+#define RESP_R6     (6 << 0)
+#define RESP_R7     (7 << 0)
+#define RESP_R5     (8 << 0)    /*SDIO command response type*/
+/*command types
  *bits:4~5
  */
-#define CMD_MASK	(3 << 4)		/* command type */
-#define CMD_AC		(0 << 4)
-#define CMD_ADTC	(1 << 4)
-#define CMD_BC		(2 << 4)
-#define CMD_BCR		(3 << 4)
+#define CMD_MASK    (3 << 4)        /* command type */
+#define CMD_AC      (0 << 4)
+#define CMD_ADTC    (1 << 4)
+#define CMD_BC      (2 << 4)
+#define CMD_BCR     (3 << 4)
 
-#define resp_type(cmd)	((cmd)->flags & RESP_MASK)
+#define resp_type(cmd)  ((cmd)->flags & RESP_MASK)
 
-/*spi rsponse types 
+/*spi rsponse types
  *bits:6~8
  */
-#define RESP_SPI_MASK	(0x7 << 6)
-#define RESP_SPI_R1	(1 << 6)
-#define RESP_SPI_R1B	(2 << 6)
-#define RESP_SPI_R2	(3 << 6)
-#define RESP_SPI_R3	(4 << 6)
-#define RESP_SPI_R4	(5 << 6)
-#define RESP_SPI_R5	(6 << 6)
-#define RESP_SPI_R7	(7 << 6)
+#define RESP_SPI_MASK   (0x7 << 6)
+#define RESP_SPI_R1 (1 << 6)
+#define RESP_SPI_R1B    (2 << 6)
+#define RESP_SPI_R2 (3 << 6)
+#define RESP_SPI_R3 (4 << 6)
+#define RESP_SPI_R4 (5 << 6)
+#define RESP_SPI_R5 (6 << 6)
+#define RESP_SPI_R7 (7 << 6)
 
-#define spi_resp_type(cmd)	((cmd)->flags & RESP_SPI_MASK)
+#define spi_resp_type(cmd)  ((cmd)->flags & RESP_SPI_MASK)
 /*
  * These are the command types.
  */
-#define cmd_type(cmd)	((cmd)->flags & CMD_MASK)
-	
-	rt_int32_t  retries;	/* max number of retries */
-	rt_int32_t  err;
+#define cmd_type(cmd)   ((cmd)->flags & CMD_MASK)
 
-	struct rt_mmcsd_data *data;
-	struct rt_mmcsd_req	*mrq;		/* associated request */
+    rt_int32_t  retries;    /* max number of retries */
+    rt_int32_t  err;
+
+    struct rt_mmcsd_data *data;
+    struct rt_mmcsd_req *mrq;       /* associated request */
 };
 
 struct rt_mmcsd_req {
-	struct rt_mmcsd_data  *data;
-	struct rt_mmcsd_cmd   *cmd;
-	struct rt_mmcsd_cmd   *stop;
+    struct rt_mmcsd_data  *data;
+    struct rt_mmcsd_cmd   *cmd;
+    struct rt_mmcsd_cmd   *stop;
 };
 
 /*the following is response bit*/
-#define R1_OUT_OF_RANGE		(1 << 31)	/* er, c */
-#define R1_ADDRESS_ERROR	(1 << 30)	/* erx, c */
-#define R1_BLOCK_LEN_ERROR	(1 << 29)	/* er, c */
-#define R1_ERASE_SEQ_ERROR      (1 << 28)	/* er, c */
-#define R1_ERASE_PARAM		(1 << 27)	/* ex, c */
-#define R1_WP_VIOLATION		(1 << 26)	/* erx, c */
-#define R1_CARD_IS_LOCKED	(1 << 25)	/* sx, a */
-#define R1_LOCK_UNLOCK_FAILED	(1 << 24)	/* erx, c */
-#define R1_COM_CRC_ERROR	(1 << 23)	/* er, b */
-#define R1_ILLEGAL_COMMAND	(1 << 22)	/* er, b */
-#define R1_CARD_ECC_FAILED	(1 << 21)	/* ex, c */
-#define R1_CC_ERROR		(1 << 20)	/* erx, c */
-#define R1_ERROR		(1 << 19)	/* erx, c */
-#define R1_UNDERRUN		(1 << 18)	/* ex, c */
-#define R1_OVERRUN		(1 << 17)	/* ex, c */
-#define R1_CID_CSD_OVERWRITE	(1 << 16)	/* erx, c, CID/CSD overwrite */
-#define R1_WP_ERASE_SKIP	(1 << 15)	/* sx, c */
-#define R1_CARD_ECC_DISABLED	(1 << 14)	/* sx, a */
-#define R1_ERASE_RESET		(1 << 13)	/* sr, c */
+#define R1_OUT_OF_RANGE     (1 << 31)   /* er, c */
+#define R1_ADDRESS_ERROR    (1 << 30)   /* erx, c */
+#define R1_BLOCK_LEN_ERROR  (1 << 29)   /* er, c */
+#define R1_ERASE_SEQ_ERROR      (1 << 28)   /* er, c */
+#define R1_ERASE_PARAM      (1 << 27)   /* ex, c */
+#define R1_WP_VIOLATION     (1 << 26)   /* erx, c */
+#define R1_CARD_IS_LOCKED   (1 << 25)   /* sx, a */
+#define R1_LOCK_UNLOCK_FAILED   (1 << 24)   /* erx, c */
+#define R1_COM_CRC_ERROR    (1 << 23)   /* er, b */
+#define R1_ILLEGAL_COMMAND  (1 << 22)   /* er, b */
+#define R1_CARD_ECC_FAILED  (1 << 21)   /* ex, c */
+#define R1_CC_ERROR     (1 << 20)   /* erx, c */
+#define R1_ERROR        (1 << 19)   /* erx, c */
+#define R1_UNDERRUN     (1 << 18)   /* ex, c */
+#define R1_OVERRUN      (1 << 17)   /* ex, c */
+#define R1_CID_CSD_OVERWRITE    (1 << 16)   /* erx, c, CID/CSD overwrite */
+#define R1_WP_ERASE_SKIP    (1 << 15)   /* sx, c */
+#define R1_CARD_ECC_DISABLED    (1 << 14)   /* sx, a */
+#define R1_ERASE_RESET      (1 << 13)   /* sr, c */
 #define R1_STATUS(x)            (x & 0xFFFFE000)
-#define R1_CURRENT_STATE(x)	((x & 0x00001E00) >> 9)	/* sx, b (4 bits) */
-#define R1_READY_FOR_DATA	(1 << 8)	/* sx, a */
-#define R1_APP_CMD		(1 << 5)	/* sr, c */
+#define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */
+#define R1_READY_FOR_DATA   (1 << 8)    /* sx, a */
+#define R1_APP_CMD      (1 << 5)    /* sr, c */
 
 
-#define R1_SPI_IDLE		(1 << 0)
-#define R1_SPI_ERASE_RESET	(1 << 1)
-#define R1_SPI_ILLEGAL_COMMAND	(1 << 2)
-#define R1_SPI_COM_CRC		(1 << 3)
-#define R1_SPI_ERASE_SEQ	(1 << 4)
-#define R1_SPI_ADDRESS		(1 << 5)
-#define R1_SPI_PARAMETER	(1 << 6)
+#define R1_SPI_IDLE     (1 << 0)
+#define R1_SPI_ERASE_RESET  (1 << 1)
+#define R1_SPI_ILLEGAL_COMMAND  (1 << 2)
+#define R1_SPI_COM_CRC      (1 << 3)
+#define R1_SPI_ERASE_SEQ    (1 << 4)
+#define R1_SPI_ADDRESS      (1 << 5)
+#define R1_SPI_PARAMETER    (1 << 6)
 /* R1 bit 7 is always zero */
-#define R2_SPI_CARD_LOCKED	(1 << 8)
-#define R2_SPI_WP_ERASE_SKIP	(1 << 9)	/* or lock/unlock fail */
-#define R2_SPI_LOCK_UNLOCK_FAIL	R2_SPI_WP_ERASE_SKIP
-#define R2_SPI_ERROR		(1 << 10)
-#define R2_SPI_CC_ERROR		(1 << 11)
-#define R2_SPI_CARD_ECC_ERROR	(1 << 12)
-#define R2_SPI_WP_VIOLATION	(1 << 13)
-#define R2_SPI_ERASE_PARAM	(1 << 14)
-#define R2_SPI_OUT_OF_RANGE	(1 << 15)	/* or CSD overwrite */
-#define R2_SPI_CSD_OVERWRITE	R2_SPI_OUT_OF_RANGE
+#define R2_SPI_CARD_LOCKED  (1 << 8)
+#define R2_SPI_WP_ERASE_SKIP    (1 << 9)    /* or lock/unlock fail */
+#define R2_SPI_LOCK_UNLOCK_FAIL R2_SPI_WP_ERASE_SKIP
+#define R2_SPI_ERROR        (1 << 10)
+#define R2_SPI_CC_ERROR     (1 << 11)
+#define R2_SPI_CARD_ECC_ERROR   (1 << 12)
+#define R2_SPI_WP_VIOLATION (1 << 13)
+#define R2_SPI_ERASE_PARAM  (1 << 14)
+#define R2_SPI_OUT_OF_RANGE (1 << 15)   /* or CSD overwrite */
+#define R2_SPI_CSD_OVERWRITE    R2_SPI_OUT_OF_RANGE
 
-#define CARD_BUSY	0x80000000	/* Card Power up status bit */
+#define CARD_BUSY   0x80000000  /* Card Power up status bit */
 
 /* R5 response bits */
-#define R5_COM_CRC_ERROR	(1 << 15)
-#define R5_ILLEGAL_COMMAND	(1 << 14)
-#define R5_ERROR			(1 << 11)
-#define R5_FUNCTION_NUMBER	(1 << 9)
-#define R5_OUT_OF_RANGE		(1 << 8)
-#define R5_STATUS(x)		(x & 0xCB00)
-#define R5_IO_CURRENT_STATE(x)	((x & 0x3000) >> 12)
+#define R5_COM_CRC_ERROR    (1 << 15)
+#define R5_ILLEGAL_COMMAND  (1 << 14)
+#define R5_ERROR            (1 << 11)
+#define R5_FUNCTION_NUMBER  (1 << 9)
+#define R5_OUT_OF_RANGE     (1 << 8)
+#define R5_STATUS(x)        (x & 0xCB00)
+#define R5_IO_CURRENT_STATE(x)  ((x & 0x3000) >> 12)
 
 
 
@@ -173,36 +173,36 @@ struct rt_mmcsd_req {
 
 rt_inline rt_uint32_t __rt_fls(rt_uint32_t val)
 {
-	rt_uint32_t  bit = 32;
+    rt_uint32_t  bit = 32;
 
-	if (!val)
-		return 0;
-	if (!(val & 0xffff0000u)) 
-	{
-		val <<= 16;
-		bit -= 16;
-	}
-	if (!(val & 0xff000000u)) 
-	{
-		val <<= 8;
-		bit -= 8;
-	}
-	if (!(val & 0xf0000000u)) 
-	{
-		val <<= 4;
-		bit -= 4;
-	}
-	if (!(val & 0xc0000000u)) 
-	{
-		val <<= 2;
-		bit -= 2;
-	}
-	if (!(val & 0x80000000u)) 
-	{
-		bit -= 1;
-	}
+    if (!val)
+        return 0;
+    if (!(val & 0xffff0000u))
+    {
+        val <<= 16;
+        bit -= 16;
+    }
+    if (!(val & 0xff000000u))
+    {
+        val <<= 8;
+        bit -= 8;
+    }
+    if (!(val & 0xf0000000u))
+    {
+        val <<= 4;
+        bit -= 4;
+    }
+    if (!(val & 0xc0000000u))
+    {
+        val <<= 2;
+        bit -= 2;
+    }
+    if (!(val & 0x80000000u))
+    {
+        bit -= 1;
+    }
 
-	return bit;
+    return bit;
 }
 
 #define MMCSD_HOST_PLUGED       0
diff --git a/components/drivers/include/drivers/mmcsd_host.h b/components/drivers/include/drivers/mmcsd_host.h
index 1253062aef..c7f673aeb1 100644
--- a/components/drivers/include/drivers/mmcsd_host.h
+++ b/components/drivers/include/drivers/mmcsd_host.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
- * Date           Author		Notes
- * 2011-07-25     weety		first version
+ * Date           Author        Notes
+ * 2011-07-25     weety     first version
  */
 
 #ifndef __HOST_H__
@@ -18,33 +18,33 @@ extern "C" {
 #endif
 
 struct rt_mmcsd_io_cfg {
-	rt_uint32_t	clock;			/* clock rate */
-	rt_uint16_t	vdd;
+    rt_uint32_t clock;          /* clock rate */
+    rt_uint16_t vdd;
 
 /* vdd stores the bit number of the selected voltage range from below. */
 
-	rt_uint8_t	bus_mode;		/* command output mode */
+    rt_uint8_t  bus_mode;       /* command output mode */
 
-#define MMCSD_BUSMODE_OPENDRAIN	1
-#define MMCSD_BUSMODE_PUSHPULL	2
+#define MMCSD_BUSMODE_OPENDRAIN 1
+#define MMCSD_BUSMODE_PUSHPULL  2
 
-	rt_uint8_t	chip_select;		/* SPI chip select */
+    rt_uint8_t  chip_select;        /* SPI chip select */
 
-#define MMCSD_CS_IGNORE		0
-#define MMCSD_CS_HIGH		1
-#define MMCSD_CS_LOW		2
+#define MMCSD_CS_IGNORE     0
+#define MMCSD_CS_HIGH       1
+#define MMCSD_CS_LOW        2
 
-	rt_uint8_t	power_mode;		/* power supply mode */
+    rt_uint8_t  power_mode;     /* power supply mode */
 
-#define MMCSD_POWER_OFF		0
-#define MMCSD_POWER_UP		1
-#define MMCSD_POWER_ON		2
+#define MMCSD_POWER_OFF     0
+#define MMCSD_POWER_UP      1
+#define MMCSD_POWER_ON      2
 
-	rt_uint8_t	bus_width;		/* data bus width */
+    rt_uint8_t  bus_width;      /* data bus width */
 
-#define MMCSD_BUS_WIDTH_1		0
-#define MMCSD_BUS_WIDTH_4		2
-#define MMCSD_BUS_WIDTH_8		3
+#define MMCSD_BUS_WIDTH_1       0
+#define MMCSD_BUS_WIDTH_4       2
+#define MMCSD_BUS_WIDTH_8       3
 
 };
 
@@ -52,71 +52,71 @@ struct rt_mmcsd_host;
 struct rt_mmcsd_req;
 
 struct rt_mmcsd_host_ops {
-	void (*request)(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req);
-	void (*set_iocfg)(struct rt_mmcsd_host *host, struct rt_mmcsd_io_cfg *io_cfg);
-	rt_int32_t (*get_card_status)(struct rt_mmcsd_host *host);
-	void (*enable_sdio_irq)(struct rt_mmcsd_host *host, rt_int32_t en);
+    void (*request)(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req);
+    void (*set_iocfg)(struct rt_mmcsd_host *host, struct rt_mmcsd_io_cfg *io_cfg);
+    rt_int32_t (*get_card_status)(struct rt_mmcsd_host *host);
+    void (*enable_sdio_irq)(struct rt_mmcsd_host *host, rt_int32_t en);
 };
 
 struct rt_mmcsd_host {
-	struct rt_mmcsd_card *card;
-	const struct rt_mmcsd_host_ops *ops;
-	rt_uint32_t  freq_min;
-	rt_uint32_t  freq_max;
-	struct rt_mmcsd_io_cfg io_cfg;
-	rt_uint32_t  valid_ocr;	/* current valid OCR */
-#define VDD_165_195		(1 << 7)	/* VDD voltage 1.65 - 1.95 */
-#define VDD_20_21		(1 << 8)	/* VDD voltage 2.0 ~ 2.1 */
-#define VDD_21_22		(1 << 9)	/* VDD voltage 2.1 ~ 2.2 */
-#define VDD_22_23		(1 << 10)	/* VDD voltage 2.2 ~ 2.3 */
-#define VDD_23_24		(1 << 11)	/* VDD voltage 2.3 ~ 2.4 */
-#define VDD_24_25		(1 << 12)	/* VDD voltage 2.4 ~ 2.5 */
-#define VDD_25_26		(1 << 13)	/* VDD voltage 2.5 ~ 2.6 */
-#define VDD_26_27		(1 << 14)	/* VDD voltage 2.6 ~ 2.7 */
-#define VDD_27_28		(1 << 15)	/* VDD voltage 2.7 ~ 2.8 */
-#define VDD_28_29		(1 << 16)	/* VDD voltage 2.8 ~ 2.9 */
-#define VDD_29_30		(1 << 17)	/* VDD voltage 2.9 ~ 3.0 */
-#define VDD_30_31		(1 << 18)	/* VDD voltage 3.0 ~ 3.1 */
-#define VDD_31_32		(1 << 19)	/* VDD voltage 3.1 ~ 3.2 */
-#define VDD_32_33		(1 << 20)	/* VDD voltage 3.2 ~ 3.3 */
-#define VDD_33_34		(1 << 21)	/* VDD voltage 3.3 ~ 3.4 */
-#define VDD_34_35		(1 << 22)	/* VDD voltage 3.4 ~ 3.5 */
-#define VDD_35_36		(1 << 23)	/* VDD voltage 3.5 ~ 3.6 */
-	rt_uint32_t  flags; /* define device capabilities */
-#define MMCSD_BUSWIDTH_4	(1 << 0)
-#define MMCSD_BUSWIDTH_8	(1 << 1)
-#define MMCSD_MUTBLKWRITE	(1 << 2)
-#define MMCSD_HOST_IS_SPI	(1 << 3)
-#define controller_is_spi(host)	(host->flags & MMCSD_HOST_IS_SPI)
-#define MMCSD_SUP_SDIO_IRQ	(1 << 4)	/* support signal pending SDIO IRQs */
-#define MMCSD_SUP_HIGHSPEED	(1 << 5)	/* support high speed */
+    struct rt_mmcsd_card *card;
+    const struct rt_mmcsd_host_ops *ops;
+    rt_uint32_t  freq_min;
+    rt_uint32_t  freq_max;
+    struct rt_mmcsd_io_cfg io_cfg;
+    rt_uint32_t  valid_ocr; /* current valid OCR */
+#define VDD_165_195     (1 << 7)    /* VDD voltage 1.65 - 1.95 */
+#define VDD_20_21       (1 << 8)    /* VDD voltage 2.0 ~ 2.1 */
+#define VDD_21_22       (1 << 9)    /* VDD voltage 2.1 ~ 2.2 */
+#define VDD_22_23       (1 << 10)   /* VDD voltage 2.2 ~ 2.3 */
+#define VDD_23_24       (1 << 11)   /* VDD voltage 2.3 ~ 2.4 */
+#define VDD_24_25       (1 << 12)   /* VDD voltage 2.4 ~ 2.5 */
+#define VDD_25_26       (1 << 13)   /* VDD voltage 2.5 ~ 2.6 */
+#define VDD_26_27       (1 << 14)   /* VDD voltage 2.6 ~ 2.7 */
+#define VDD_27_28       (1 << 15)   /* VDD voltage 2.7 ~ 2.8 */
+#define VDD_28_29       (1 << 16)   /* VDD voltage 2.8 ~ 2.9 */
+#define VDD_29_30       (1 << 17)   /* VDD voltage 2.9 ~ 3.0 */
+#define VDD_30_31       (1 << 18)   /* VDD voltage 3.0 ~ 3.1 */
+#define VDD_31_32       (1 << 19)   /* VDD voltage 3.1 ~ 3.2 */
+#define VDD_32_33       (1 << 20)   /* VDD voltage 3.2 ~ 3.3 */
+#define VDD_33_34       (1 << 21)   /* VDD voltage 3.3 ~ 3.4 */
+#define VDD_34_35       (1 << 22)   /* VDD voltage 3.4 ~ 3.5 */
+#define VDD_35_36       (1 << 23)   /* VDD voltage 3.5 ~ 3.6 */
+    rt_uint32_t  flags; /* define device capabilities */
+#define MMCSD_BUSWIDTH_4    (1 << 0)
+#define MMCSD_BUSWIDTH_8    (1 << 1)
+#define MMCSD_MUTBLKWRITE   (1 << 2)
+#define MMCSD_HOST_IS_SPI   (1 << 3)
+#define controller_is_spi(host) (host->flags & MMCSD_HOST_IS_SPI)
+#define MMCSD_SUP_SDIO_IRQ  (1 << 4)    /* support signal pending SDIO IRQs */
+#define MMCSD_SUP_HIGHSPEED (1 << 5)    /* support high speed */
 
-	rt_uint32_t	max_seg_size;	/* maximum size of one dma segment */
-	rt_uint32_t	max_dma_segs;	/* maximum number of dma segments in one request */
-	rt_uint32_t	max_blk_size;   /* maximum block size */
-	rt_uint32_t	max_blk_count;  /* maximum block count */
+    rt_uint32_t max_seg_size;   /* maximum size of one dma segment */
+    rt_uint32_t max_dma_segs;   /* maximum number of dma segments in one request */
+    rt_uint32_t max_blk_size;   /* maximum block size */
+    rt_uint32_t max_blk_count;  /* maximum block count */
 
-	rt_uint32_t   spi_use_crc;
-	struct rt_mutex  bus_lock;
-	struct rt_semaphore  sem_ack;
+    rt_uint32_t   spi_use_crc;
+    struct rt_mutex  bus_lock;
+    struct rt_semaphore  sem_ack;
 
-	rt_uint32_t       sdio_irq_num;
-	struct rt_semaphore    *sdio_irq_sem;
-	struct rt_thread     *sdio_irq_thread;
+    rt_uint32_t       sdio_irq_num;
+    struct rt_semaphore    *sdio_irq_sem;
+    struct rt_thread     *sdio_irq_thread;
 
-	void *private_data;
+    void *private_data;
 };
 
 rt_inline void mmcsd_delay_ms(rt_uint32_t ms)
 {
-	if (ms < 1000 / RT_TICK_PER_SECOND) 
-	{
-		rt_thread_delay(1);
-	} 
-	else 
-	{
-		rt_thread_delay(ms/(1000 / RT_TICK_PER_SECOND));
-	}
+    if (ms < 1000 / RT_TICK_PER_SECOND)
+    {
+        rt_thread_delay(1);
+    }
+    else
+    {
+        rt_thread_delay(ms/(1000 / RT_TICK_PER_SECOND));
+    }
 }
 
 #ifdef __cplusplus
diff --git a/components/drivers/include/drivers/mtd_nand.h b/components/drivers/include/drivers/mtd_nand.h
index f7675aede6..a452da61dd 100644
--- a/components/drivers/include/drivers/mtd_nand.h
+++ b/components/drivers/include/drivers/mtd_nand.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/mtd_nor.h b/components/drivers/include/drivers/mtd_nor.h
index 32a952f374..5573c54920 100644
--- a/components/drivers/include/drivers/mtd_nor.h
+++ b/components/drivers/include/drivers/mtd_nor.h
@@ -1,11 +1,11 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
- * 2012-5-30     Bernard      the first version
+ * 2012-5-30      Bernard      the first version
  */
 
 #ifndef __MTD_NOR_H__
@@ -14,54 +14,54 @@
 #include <rtdevice.h>
 
 struct rt_mtd_nor_driver_ops;
-#define RT_MTD_NOR_DEVICE(device)	((struct rt_mtd_nor_device*)(device))
+#define RT_MTD_NOR_DEVICE(device)   ((struct rt_mtd_nor_device*)(device))
 
 struct rt_mtd_nor_device
 {
-	struct rt_device parent;
+    struct rt_device parent;
 
-	rt_uint32_t block_size;			/* The Block size in the flash */
-	rt_uint32_t block_start;		/* The start of available block*/
-	rt_uint32_t block_end;			/* The end of available block */
+    rt_uint32_t block_size;         /* The Block size in the flash */
+    rt_uint32_t block_start;        /* The start of available block*/
+    rt_uint32_t block_end;          /* The end of available block */
 
-	/* operations interface */
-	const struct rt_mtd_nor_driver_ops* ops;
+    /* operations interface */
+    const struct rt_mtd_nor_driver_ops* ops;
 };
 
 struct rt_mtd_nor_driver_ops
 {
-	rt_err_t (*read_id) (struct rt_mtd_nor_device* device);
+    rt_err_t (*read_id) (struct rt_mtd_nor_device* device);
 
-	rt_size_t (*read)    (struct rt_mtd_nor_device* device, rt_off_t offset, rt_uint8_t* data, rt_uint32_t length);
-	rt_size_t (*write)   (struct rt_mtd_nor_device* device, rt_off_t offset, const rt_uint8_t* data, rt_uint32_t length);
+    rt_size_t (*read)    (struct rt_mtd_nor_device* device, rt_off_t offset, rt_uint8_t* data, rt_uint32_t length);
+    rt_size_t (*write)   (struct rt_mtd_nor_device* device, rt_off_t offset, const rt_uint8_t* data, rt_uint32_t length);
 
-	rt_err_t (*erase_block)(struct rt_mtd_nor_device* device, rt_off_t offset, rt_uint32_t length);
+    rt_err_t (*erase_block)(struct rt_mtd_nor_device* device, rt_off_t offset, rt_uint32_t length);
 };
 
 rt_err_t rt_mtd_nor_register_device(const char* name, struct rt_mtd_nor_device* device);
 
 rt_inline rt_uint32_t rt_mtd_nor_read_id(struct rt_mtd_nor_device* device)
 {
-	return device->ops->read_id(device);
+    return device->ops->read_id(device);
 }
 
 rt_inline rt_size_t rt_mtd_nor_read(
-	struct rt_mtd_nor_device* device,
-	rt_off_t offset, rt_uint8_t* data, rt_uint32_t length)
+    struct rt_mtd_nor_device* device,
+    rt_off_t offset, rt_uint8_t* data, rt_uint32_t length)
 {
-	return device->ops->read(device, offset, data, length);
+    return device->ops->read(device, offset, data, length);
 }
 
 rt_inline rt_size_t rt_mtd_nor_write(
-	struct rt_mtd_nor_device* device,
-	rt_off_t offset, const rt_uint8_t* data, rt_uint32_t length)
+    struct rt_mtd_nor_device* device,
+    rt_off_t offset, const rt_uint8_t* data, rt_uint32_t length)
 {
-	return device->ops->write(device, offset, data, length);
+    return device->ops->write(device, offset, data, length);
 }
 
 rt_inline rt_err_t rt_mtd_nor_erase_block(struct rt_mtd_nor_device* device, rt_off_t offset, rt_size_t length)
 {
-	return device->ops->erase_block(device, offset, length);
+    return device->ops->erase_block(device, offset, length);
 }
 
 #endif
diff --git a/components/drivers/include/drivers/phy.h b/components/drivers/include/drivers/phy.h
index 2d1ad9f91f..e1783fe328 100644
--- a/components/drivers/include/drivers/phy.h
+++ b/components/drivers/include/drivers/phy.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/phy_mdio.h b/components/drivers/include/drivers/phy_mdio.h
index d978ec2984..fdef455db2 100644
--- a/components/drivers/include/drivers/phy_mdio.h
+++ b/components/drivers/include/drivers/phy_mdio.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/pin.h b/components/drivers/include/drivers/pin.h
index f5b2ded9f6..5ba1e6c8ea 100644
--- a/components/drivers/include/drivers/pin.h
+++ b/components/drivers/include/drivers/pin.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/pm.h b/components/drivers/include/drivers/pm.h
index f28283dcf8..51bff54ebb 100644
--- a/components/drivers/include/drivers/pm.h
+++ b/components/drivers/include/drivers/pm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/pulse_encoder.h b/components/drivers/include/drivers/pulse_encoder.h
index 0c7df04cd6..38ef7652b9 100644
--- a/components/drivers/include/drivers/pulse_encoder.h
+++ b/components/drivers/include/drivers/pulse_encoder.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/rt_drv_pwm.h b/components/drivers/include/drivers/rt_drv_pwm.h
index 7a8e17b916..72e34428e6 100644
--- a/components/drivers/include/drivers/rt_drv_pwm.h
+++ b/components/drivers/include/drivers/rt_drv_pwm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/rt_inputcapture.h b/components/drivers/include/drivers/rt_inputcapture.h
index 40cd55883d..813ed3157b 100644
--- a/components/drivers/include/drivers/rt_inputcapture.h
+++ b/components/drivers/include/drivers/rt_inputcapture.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/rtc.h b/components/drivers/include/drivers/rtc.h
index 1cd88a7be3..4845937113 100644
--- a/components/drivers/include/drivers/rtc.h
+++ b/components/drivers/include/drivers/rtc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/sd.h b/components/drivers/include/drivers/sd.h
index e096df9372..450f23e65b 100644
--- a/components/drivers/include/drivers/sd.h
+++ b/components/drivers/include/drivers/sd.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/drivers/sdio.h b/components/drivers/include/drivers/sdio.h
index e4bf4a048f..212d8cfb52 100644
--- a/components/drivers/include/drivers/sdio.h
+++ b/components/drivers/include/drivers/sdio.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -174,10 +174,10 @@ rt_int32_t sdio_io_rw_extended_block(struct rt_sdio_function *func,
                               rt_int32_t               op_code,
                               rt_uint8_t              *buf,
                               rt_uint32_t              len);
-rt_uint8_t sdio_io_readb(struct rt_sdio_function *func, 
+rt_uint8_t sdio_io_readb(struct rt_sdio_function *func,
                          rt_uint32_t              reg,
                          rt_int32_t              *err);
-rt_int32_t sdio_io_writeb(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_writeb(struct rt_sdio_function *func,
                           rt_uint32_t              reg,
                           rt_uint8_t               data);
 rt_uint16_t sdio_io_readw(struct rt_sdio_function *func,
@@ -192,19 +192,19 @@ rt_uint32_t sdio_io_readl(struct rt_sdio_function *func,
 rt_int32_t sdio_io_writel(struct rt_sdio_function *func,
                           rt_uint32_t              data,
                           rt_uint32_t              addr);
-rt_int32_t sdio_io_read_multi_fifo_b(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_read_multi_fifo_b(struct rt_sdio_function *func,
                                      rt_uint32_t              addr,
                                      rt_uint8_t              *buf,
                                      rt_uint32_t              len);
-rt_int32_t sdio_io_write_multi_fifo_b(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_write_multi_fifo_b(struct rt_sdio_function *func,
                                       rt_uint32_t              addr,
                                       rt_uint8_t              *buf,
                                       rt_uint32_t              len);
-rt_int32_t sdio_io_read_multi_incr_b(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_read_multi_incr_b(struct rt_sdio_function *func,
                                      rt_uint32_t              addr,
                                      rt_uint8_t              *buf,
                                      rt_uint32_t              len);
-rt_int32_t sdio_io_write_multi_incr_b(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_write_multi_incr_b(struct rt_sdio_function *func,
                                       rt_uint32_t              addr,
                                       rt_uint8_t              *buf,
                                       rt_uint32_t              len);
diff --git a/components/drivers/include/drivers/sdio_func_ids.h b/components/drivers/include/drivers/sdio_func_ids.h
index 79085a5933..76502ff6ea 100644
--- a/components/drivers/include/drivers/sdio_func_ids.h
+++ b/components/drivers/include/drivers/sdio_func_ids.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -7,7 +7,7 @@
  * Date           Author        Notes
  * 2012-02-26     weety         first version
  */
- 
+
 #ifndef __SDIO_FUNC_IDS_H__
 #define __SDIO_FUNC_IDS_H__
 
diff --git a/components/drivers/include/drivers/serial.h b/components/drivers/include/drivers/serial.h
index 45095af63f..c2e951e9b1 100644
--- a/components/drivers/include/drivers/serial.h
+++ b/components/drivers/include/drivers/serial.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -104,7 +104,7 @@ struct serial_configure
 };
 
 /*
- * Serial FIFO mode 
+ * Serial FIFO mode
  */
 struct rt_serial_rx_fifo
 {
@@ -121,7 +121,7 @@ struct rt_serial_tx_fifo
     struct rt_completion completion;
 };
 
-/* 
+/*
  * Serial DMA mode
  */
 struct rt_serial_rx_dma
diff --git a/components/drivers/include/drivers/spi.h b/components/drivers/include/drivers/spi.h
index d92518cd94..018d12139b 100644
--- a/components/drivers/include/drivers/spi.h
+++ b/components/drivers/include/drivers/spi.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -151,7 +151,7 @@ struct rt_qspi_configuration
 };
 
 struct rt_qspi_device
-{ 
+{
     struct rt_spi_device parent;
 
     struct rt_qspi_configuration config;
diff --git a/components/drivers/include/drivers/usb_common.h b/components/drivers/include/drivers/usb_common.h
index 4d85a85e35..9c29a0d0df 100644
--- a/components/drivers/include/drivers/usb_common.h
+++ b/components/drivers/include/drivers/usb_common.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -427,14 +427,14 @@ struct usb_os_proerty
 };
 typedef struct usb_os_proerty * usb_os_proerty_t;
 
-// Value	Description
-//  1	    A NULL-terminated Unicode String (REG_SZ)
-//  2	    A NULL-terminated Unicode String that includes environment variables (REG_EXPAND_SZ)
-//  3	    Free-form binary (REG_BINARY)
-//  4	    A little-endian 32-bit integer (REG_DWORD_LITTLE_ENDIAN)
-//  5	    A big-endian 32-bit integer (REG_DWORD_BIG_ENDIAN)
-//  6	    A NULL-terminated Unicode string that contains a symbolic link (REG_LINK)
-//  7	    Multiple NULL-terminated Unicode strings (REG_MULTI_SZ)
+// Value    Description
+//  1       A NULL-terminated Unicode String (REG_SZ)
+//  2       A NULL-terminated Unicode String that includes environment variables (REG_EXPAND_SZ)
+//  3       Free-form binary (REG_BINARY)
+//  4       A little-endian 32-bit integer (REG_DWORD_LITTLE_ENDIAN)
+//  5       A big-endian 32-bit integer (REG_DWORD_BIG_ENDIAN)
+//  6       A NULL-terminated Unicode string that contains a symbolic link (REG_LINK)
+//  7       Multiple NULL-terminated Unicode strings (REG_MULTI_SZ)
 #define USB_OS_PROPERTY_TYPE_REG_SZ                      0x01UL
 #define USB_OS_PROPERTY_TYPE_REG_EXPAND_SZ               0x02UL
 #define USB_OS_PROPERTY_TYPE_REG_BINARY                  0x03UL
diff --git a/components/drivers/include/drivers/usb_device.h b/components/drivers/include/drivers/usb_device.h
index 26f0c4cf4a..1e76477dbc 100644
--- a/components/drivers/include/drivers/usb_device.h
+++ b/components/drivers/include/drivers/usb_device.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -62,12 +62,12 @@ struct ufunction;
 struct udevice;
 struct uendpoint;
 
-typedef enum 
+typedef enum
 {
     /* request to read full count */
     UIO_REQUEST_READ_FULL,
     /* request to read any count */
-    UIO_REQUEST_READ_BEST,  
+    UIO_REQUEST_READ_BEST,
     /* request to write full count */
     UIO_REQUEST_WRITE,
 }UIO_REQUEST_TYPE;
@@ -85,7 +85,7 @@ struct udcd_ops
     rt_size_t (*ep_write)(rt_uint8_t address, void *buffer, rt_size_t size);
     rt_err_t (*ep0_send_status)(void);
     rt_err_t (*suspend)(void);
-    rt_err_t (*wakeup)(void);    
+    rt_err_t (*wakeup)(void);
 };
 
 struct ep_id
@@ -215,10 +215,10 @@ enum udev_msg_type
     USB_MSG_SETUP_NOTIFY,
     USB_MSG_DATA_NOTIFY,
     USB_MSG_EP0_OUT,
-    USB_MSG_EP_CLEAR_FEATURE,        
+    USB_MSG_EP_CLEAR_FEATURE,
     USB_MSG_SOF,
     USB_MSG_RESET,
-    USB_MSG_PLUG_IN,    
+    USB_MSG_PLUG_IN,
     /* we don't need to add a "PLUG_IN" event because after the cable is
      * plugged in(before any SETUP) the classed have nothing to do. If the host
      * is ready, it will send RESET and we will have USB_MSG_RESET. So, a RESET
@@ -279,7 +279,7 @@ uintf_t rt_usbd_find_interface(udevice_t device, rt_uint8_t value, ufunction_t *
 uep_t rt_usbd_find_endpoint(udevice_t device, ufunction_t* pfunc, rt_uint8_t ep_addr);
 rt_size_t rt_usbd_io_request(udevice_t device, uep_t ep, uio_request_t req);
 rt_size_t rt_usbd_ep0_write(udevice_t device, void *buffer, rt_size_t size);
-rt_size_t rt_usbd_ep0_read(udevice_t device, void *buffer, rt_size_t size, 
+rt_size_t rt_usbd_ep0_read(udevice_t device, void *buffer, rt_size_t size,
     rt_err_t (*rx_ind)(udevice_t device, rt_size_t size));
 
 int rt_usbd_vcom_class_register(void);
@@ -396,7 +396,7 @@ rt_inline rt_err_t dcd_ep0_send_status(udcd_t dcd)
 }
 
 rt_inline rt_err_t dcd_ep_set_stall(udcd_t dcd, rt_uint8_t address)
-{    
+{
     RT_ASSERT(dcd != RT_NULL);
     RT_ASSERT(dcd->ops != RT_NULL);
     RT_ASSERT(dcd->ops->ep_set_stall != RT_NULL);
diff --git a/components/drivers/include/drivers/usb_host.h b/components/drivers/include/drivers/usb_host.h
index 2a68f4edb5..2031e2cdc0 100644
--- a/components/drivers/include/drivers/usb_host.h
+++ b/components/drivers/include/drivers/usb_host.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -44,10 +44,10 @@ struct uclass_driver
     rt_list_t list;
     int class_code;
     int subclass_code;
-    
+
     rt_err_t (*enable)(void* arg);
     rt_err_t (*disable)(void* arg);
-    
+
     void* user_data;
 };
 typedef struct uclass_driver* ucd_t;
@@ -56,9 +56,9 @@ struct uprotocal
 {
     rt_list_t list;
     int pro_id;
-    
+
     rt_err_t (*init)(void* arg);
-    rt_err_t (*callback)(void* arg);    
+    rt_err_t (*callback)(void* arg);
 };
 typedef struct uprotocal* uprotocal_t;
 
@@ -77,13 +77,13 @@ struct uinstance
     rt_uint8_t status;
     rt_uint8_t type;
     rt_uint8_t index;
-    rt_uint8_t address;    
+    rt_uint8_t address;
     rt_uint8_t speed;
-    rt_uint8_t max_packet_size;    
+    rt_uint8_t max_packet_size;
     rt_uint8_t port;
 
     struct uhub* parent_hub;
-    struct uhintf* intf[USB_MAX_INTERFACE];        
+    struct uhintf* intf[USB_MAX_INTERFACE];
 };
 typedef struct uinstance* uinst_t;
 
@@ -113,14 +113,14 @@ struct uhub
     struct uhub_descriptor hub_desc;
     rt_uint8_t num_ports;
     rt_uint32_t port_status[USB_HUB_PORT_NUM];
-    struct uinstance* child[USB_HUB_PORT_NUM];        
+    struct uinstance* child[USB_HUB_PORT_NUM];
 
     rt_bool_t is_roothub;
 
-    rt_uint8_t buffer[8];    
+    rt_uint8_t buffer[8];
     struct uinstance* self;
     struct uhcd *hcd;
-};    
+};
 typedef struct uhub* uhub_t;
 
 struct uhcd_ops
@@ -128,7 +128,7 @@ struct uhcd_ops
     rt_err_t    (*reset_port)   (rt_uint8_t port);
     int         (*pipe_xfer)    (upipe_t pipe, rt_uint8_t token, void* buffer, int nbytes, int timeout);
     rt_err_t    (*open_pipe)    (upipe_t pipe);
-    rt_err_t    (*close_pipe)   (upipe_t pipe);  
+    rt_err_t    (*close_pipe)   (upipe_t pipe);
 };
 typedef struct uhcd_ops* uhcd_ops_t;
 struct uhcd
@@ -136,7 +136,7 @@ struct uhcd
     struct rt_device parent;
     uhcd_ops_t ops;
     rt_uint8_t num_ports;
-    uhub_t roothub; 
+    uhub_t roothub;
 };
 typedef struct uhcd* uhcd_t;
 
@@ -149,11 +149,11 @@ typedef enum uhost_msg_type uhost_msg_type;
 
 struct uhost_msg
 {
-    uhost_msg_type type; 
+    uhost_msg_type type;
     union
     {
         struct uhub* hub;
-        struct 
+        struct
         {
             func_callback function;
             void *context;
@@ -193,14 +193,14 @@ ucd_t rt_usbh_class_driver_storage(void);
 
 
 /* usb hub interface */
-rt_err_t rt_usbh_hub_get_descriptor(struct uinstance* device, rt_uint8_t *buffer, 
+rt_err_t rt_usbh_hub_get_descriptor(struct uinstance* device, rt_uint8_t *buffer,
     rt_size_t size);
 rt_err_t rt_usbh_hub_get_status(struct uinstance* device, rt_uint32_t* buffer);
-rt_err_t rt_usbh_hub_get_port_status(uhub_t uhub, rt_uint16_t port, 
+rt_err_t rt_usbh_hub_get_port_status(uhub_t uhub, rt_uint16_t port,
     rt_uint32_t* buffer);
-rt_err_t rt_usbh_hub_clear_port_feature(uhub_t uhub, rt_uint16_t port, 
+rt_err_t rt_usbh_hub_clear_port_feature(uhub_t uhub, rt_uint16_t port,
     rt_uint16_t feature);
-rt_err_t rt_usbh_hub_set_port_feature(uhub_t uhub, rt_uint16_t port, 
+rt_err_t rt_usbh_hub_set_port_feature(uhub_t uhub, rt_uint16_t port,
     rt_uint16_t feature);
 rt_err_t rt_usbh_hub_reset_port(uhub_t uhub, rt_uint16_t port);
 rt_err_t rt_usbh_event_signal(struct uhost_msg* msg);
diff --git a/components/drivers/include/drivers/watchdog.h b/components/drivers/include/drivers/watchdog.h
index f80ded58aa..9489ac2810 100644
--- a/components/drivers/include/drivers/watchdog.h
+++ b/components/drivers/include/drivers/watchdog.h
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/drivers/include/drivers/wlan.h b/components/drivers/include/drivers/wlan.h
index 724e61da78..b5b4f73586 100644
--- a/components/drivers/include/drivers/wlan.h
+++ b/components/drivers/include/drivers/wlan.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/ipc/completion.h b/components/drivers/include/ipc/completion.h
index acfcaa3995..087a9be813 100644
--- a/components/drivers/include/ipc/completion.h
+++ b/components/drivers/include/ipc/completion.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/ipc/dataqueue.h b/components/drivers/include/ipc/dataqueue.h
index 76203c404d..5dd94e55c0 100644
--- a/components/drivers/include/ipc/dataqueue.h
+++ b/components/drivers/include/ipc/dataqueue.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/ipc/pipe.h b/components/drivers/include/ipc/pipe.h
index 93ba95cd2c..a45e8ae002 100644
--- a/components/drivers/include/ipc/pipe.h
+++ b/components/drivers/include/ipc/pipe.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/ipc/poll.h b/components/drivers/include/ipc/poll.h
index 8c68a96af8..1574215c77 100644
--- a/components/drivers/include/ipc/poll.h
+++ b/components/drivers/include/ipc/poll.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/ipc/ringblk_buf.h b/components/drivers/include/ipc/ringblk_buf.h
index 94fc2cfff3..5b2971b800 100644
--- a/components/drivers/include/ipc/ringblk_buf.h
+++ b/components/drivers/include/ipc/ringblk_buf.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/ipc/ringbuffer.h b/components/drivers/include/ipc/ringbuffer.h
index 2afd2ca213..71c4801253 100644
--- a/components/drivers/include/ipc/ringbuffer.h
+++ b/components/drivers/include/ipc/ringbuffer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/ipc/waitqueue.h b/components/drivers/include/ipc/waitqueue.h
index e26ec1e896..fbf5f93142 100644
--- a/components/drivers/include/ipc/waitqueue.h
+++ b/components/drivers/include/ipc/waitqueue.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
- * 2018/06/26     Bernard      Fix the wait queue issue when wakeup a soon 
+ * 2018/06/26     Bernard      Fix the wait queue issue when wakeup a soon
  *                             to blocked thread.
  */
 
diff --git a/components/drivers/include/ipc/workqueue.h b/components/drivers/include/ipc/workqueue.h
index 11fee489bd..ccbc42b226 100644
--- a/components/drivers/include/ipc/workqueue.h
+++ b/components/drivers/include/ipc/workqueue.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/include/rtdevice.h b/components/drivers/include/rtdevice.h
index f0fa2f5b4a..82868e5aef 100644
--- a/components/drivers/include/rtdevice.h
+++ b/components/drivers/include/rtdevice.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/misc/adc.c b/components/drivers/misc/adc.c
index 2d26beb243..d8f79e058b 100644
--- a/components/drivers/misc/adc.c
+++ b/components/drivers/misc/adc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/misc/dac.c b/components/drivers/misc/dac.c
index 336c78d018..784a503888 100644
--- a/components/drivers/misc/dac.c
+++ b/components/drivers/misc/dac.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -148,7 +148,7 @@ static int dac(int argc, char **argv)
     int result = RT_EOK;
     static rt_dac_device_t dac_device = RT_NULL;
     char *result_str;
-    
+
     if (argc > 1)
     {
         if (!strcmp(argv[1], "probe"))
diff --git a/components/drivers/misc/pin.c b/components/drivers/misc/pin.c
index 6f27fe516d..91bf7058dc 100644
--- a/components/drivers/misc/pin.c
+++ b/components/drivers/misc/pin.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -157,7 +157,7 @@ rt_base_t rt_pin_get(const char *name)
 {
     RT_ASSERT(_hw_pin.ops != RT_NULL);
     RT_ASSERT(name[0] == 'P');
-    
+
     if(_hw_pin.ops->pin_get == RT_NULL)
     {
         return -RT_ENOSYS;
diff --git a/components/drivers/misc/pulse_encoder.c b/components/drivers/misc/pulse_encoder.c
index 3145c24675..5afb12664a 100644
--- a/components/drivers/misc/pulse_encoder.c
+++ b/components/drivers/misc/pulse_encoder.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/misc/rt_drv_pwm.c b/components/drivers/misc/rt_drv_pwm.c
index 572580c45c..f274f509e2 100644
--- a/components/drivers/misc/rt_drv_pwm.c
+++ b/components/drivers/misc/rt_drv_pwm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/misc/rt_inputcapture.c b/components/drivers/misc/rt_inputcapture.c
index d1886186d7..134bbcee96 100644
--- a/components/drivers/misc/rt_inputcapture.c
+++ b/components/drivers/misc/rt_inputcapture.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/mtd/mtd_nand.c b/components/drivers/mtd/mtd_nand.c
index ae5aa9c172..646625ade5 100644
--- a/components/drivers/mtd/mtd_nand.c
+++ b/components/drivers/mtd/mtd_nand.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/mtd/mtd_nor.c b/components/drivers/mtd/mtd_nor.c
index b941f9236d..fd5ceb0d9f 100644
--- a/components/drivers/mtd/mtd_nor.c
+++ b/components/drivers/mtd/mtd_nor.c
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
@@ -52,7 +52,7 @@ static rt_err_t _mtd_control(rt_device_t dev, int cmd, void *args)
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops mtd_nor_ops = 
+const static struct rt_device_ops mtd_nor_ops =
 {
     _mtd_init,
     _mtd_open,
diff --git a/components/drivers/phy/phy.c b/components/drivers/phy/phy.c
index 3ed4a1a265..6d408ce612 100644
--- a/components/drivers/phy/phy.c
+++ b/components/drivers/phy/phy.c
@@ -1,6 +1,6 @@
 
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -34,9 +34,9 @@ static rt_size_t phy_device_write(rt_device_t dev, rt_off_t pos, const void *buf
 
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops phy_ops = 
+const static struct rt_device_ops phy_ops =
 {
-    RT_NULL, 
+    RT_NULL,
     RT_NULL,
     RT_NULL,
     phy_device_read,
diff --git a/components/drivers/pm/pm.c b/components/drivers/pm/pm.c
index 743a184555..80ed101498 100644
--- a/components/drivers/pm/pm.c
+++ b/components/drivers/pm/pm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -54,7 +54,7 @@ static int _pm_device_suspend(rt_uint8_t mode)
         {
             ret = _pm.device_pm[index].ops->suspend(_pm.device_pm[index].device, mode);
             if(ret != RT_EOK)
-                break; 
+                break;
         }
     }
 
diff --git a/components/drivers/rtc/alarm.c b/components/drivers/rtc/alarm.c
index d8e4e468a7..cd0a976328 100644
--- a/components/drivers/rtc/alarm.c
+++ b/components/drivers/rtc/alarm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/rtc/rtc.c b/components/drivers/rtc/rtc.c
index ef688ac3cd..98b60f9f95 100644
--- a/components/drivers/rtc/rtc.c
+++ b/components/drivers/rtc/rtc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -164,7 +164,7 @@ int rt_rtc_ntp_sync_init(void)
     }
 
     init_ok = RT_TRUE;
-		
+
     return RT_EOK;
 }
 INIT_COMPONENT_EXPORT(rt_rtc_ntp_sync_init);
diff --git a/components/drivers/rtc/soft_rtc.c b/components/drivers/rtc/soft_rtc.c
index 240301f683..9e1b7c35fd 100644
--- a/components/drivers/rtc/soft_rtc.c
+++ b/components/drivers/rtc/soft_rtc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -93,7 +93,7 @@ static rt_err_t soft_rtc_control(rt_device_t dev, int cmd, void *args)
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops soft_rtc_ops = 
+const static struct rt_device_ops soft_rtc_ops =
 {
     RT_NULL,
     RT_NULL,
diff --git a/components/drivers/sdio/block_dev.c b/components/drivers/sdio/block_dev.c
index 602acb9aa7..f2ce09a83f 100644
--- a/components/drivers/sdio/block_dev.c
+++ b/components/drivers/sdio/block_dev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -76,7 +76,7 @@ rt_int32_t mmcsd_num_wr_blocks(struct rt_mmcsd_card *card)
     timeout_us += data.timeout_clks * 1000 /
         (card->host->io_cfg.clock / 1000);
 
-    if (timeout_us > 100000) 
+    if (timeout_us > 100000)
     {
         data.timeout_ns = 100000000;
         data.timeout_clks = 0;
@@ -119,9 +119,9 @@ static rt_err_t rt_mmcsd_req_blk(struct rt_mmcsd_card *card,
     rt_memset(&data, 0, sizeof(struct rt_mmcsd_data));
     req.cmd = &cmd;
     req.data = &data;
-    
+
     cmd.arg = sector;
-    if (!(card->flags & CARD_FLAG_SDHC)) 
+    if (!(card->flags & CARD_FLAG_SDHC))
     {
         cmd.arg <<= 9;
     }
@@ -130,7 +130,7 @@ static rt_err_t rt_mmcsd_req_blk(struct rt_mmcsd_card *card,
     data.blksize = SECTOR_SIZE;
     data.blks  = blks;
 
-    if (blks > 1) 
+    if (blks > 1)
     {
         if (!controller_is_spi(card->host) || !dir)
         {
@@ -149,7 +149,7 @@ static rt_err_t rt_mmcsd_req_blk(struct rt_mmcsd_card *card,
         w_cmd = WRITE_BLOCK;
     }
 
-    if (!dir) 
+    if (!dir)
     {
         cmd.cmd_code = r_cmd;
         data.flags |= DATA_DIR_READ;
@@ -164,9 +164,9 @@ static rt_err_t rt_mmcsd_req_blk(struct rt_mmcsd_card *card,
     data.buf = buf;
     mmcsd_send_request(host, &req);
 
-    if (!controller_is_spi(card->host) && dir != 0) 
+    if (!controller_is_spi(card->host) && dir != 0)
     {
-        do 
+        do
         {
             rt_int32_t err;
 
@@ -174,7 +174,7 @@ static rt_err_t rt_mmcsd_req_blk(struct rt_mmcsd_card *card,
             cmd.arg = card->rca << 16;
             cmd.flags = RESP_R1 | CMD_AC;
             err = mmcsd_send_cmd(card->host, &cmd, 5);
-            if (err) 
+            if (err)
             {
                 LOG_E("error %d requesting status", err);
                 break;
@@ -190,7 +190,7 @@ static rt_err_t rt_mmcsd_req_blk(struct rt_mmcsd_card *card,
 
     mmcsd_host_unlock(host);
 
-    if (cmd.err || data.err || stop.err) 
+    if (cmd.err || data.err || stop.err)
     {
         LOG_E("mmcsd request blocks error");
         LOG_E("%d,%d,%d, 0x%08x,0x%08x",
@@ -264,7 +264,7 @@ static rt_size_t rt_mmcsd_read(rt_device_t dev,
     rt_sem_release(part->lock);
 
     /* the length of reading must align to SECTOR SIZE */
-    if (err) 
+    if (err)
     {
         rt_set_errno(-EIO);
         return 0;
@@ -305,7 +305,7 @@ static rt_size_t rt_mmcsd_write(rt_device_t dev,
     rt_sem_release(part->lock);
 
     /* the length of reading must align to SECTOR SIZE */
-    if (err) 
+    if (err)
     {
         rt_set_errno(-EIO);
 
@@ -330,7 +330,7 @@ static rt_int32_t mmcsd_set_blksize(struct rt_mmcsd_card *card)
     err = mmcsd_send_cmd(card->host, &cmd, 5);
     mmcsd_host_unlock(card->host);
 
-    if (err) 
+    if (err)
     {
         LOG_E("MMCSD: unable to set block size to %d: %d", cmd.arg, err);
 
@@ -341,7 +341,7 @@ static rt_int32_t mmcsd_set_blksize(struct rt_mmcsd_card *card)
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops mmcsd_blk_ops = 
+const static struct rt_device_ops mmcsd_blk_ops =
 {
     rt_mmcsd_init,
     rt_mmcsd_open,
@@ -362,7 +362,7 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
     struct mmcsd_blk_device *blk_dev = RT_NULL;
 
     err = mmcsd_set_blksize(card);
-    if(err) 
+    if(err)
     {
         return err;
     }
@@ -384,15 +384,15 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
         for (i = 0; i < RT_MMCSD_MAX_PARTITION; i++)
         {
             blk_dev = rt_calloc(1, sizeof(struct mmcsd_blk_device));
-            if (!blk_dev) 
+            if (!blk_dev)
             {
                 LOG_E("mmcsd:malloc memory failed!");
                 break;
             }
 
-            blk_dev->max_req_size = BLK_MIN((card->host->max_dma_segs * 
-                                             card->host->max_seg_size) >> 9, 
-                                            (card->host->max_blk_count * 
+            blk_dev->max_req_size = BLK_MIN((card->host->max_dma_segs *
+                                             card->host->max_seg_size) >> 9,
+                                            (card->host->max_blk_count *
                                              card->host->max_blk_size) >> 9);
 
             /* get the first partition */
@@ -402,7 +402,7 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
                 rt_snprintf(dname, 4, "sd%d",  i);
                 rt_snprintf(sname, 8, "sem_sd%d",  i);
                 blk_dev->part.lock = rt_sem_create(sname, 1, RT_IPC_FLAG_FIFO);
-    
+
                 /* register mmcsd device */
                 blk_dev->dev.type = RT_Device_Class_Block;
 #ifdef RT_USING_DEVICE_OPS
@@ -418,11 +418,11 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
                 blk_dev->dev.user_data = blk_dev;
 
                 blk_dev->card = card;
-                
+
                 blk_dev->geometry.bytes_per_sector = 1<<9;
                 blk_dev->geometry.block_size = card->card_blksize;
                 blk_dev->geometry.sector_count = blk_dev->part.size;
-    
+
                 rt_device_register(&blk_dev->dev, dname,
                     RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
                 rt_list_insert_after(&blk_devices, &blk_dev->list);
@@ -435,7 +435,7 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
                     blk_dev->part.offset = 0;
                     blk_dev->part.size   = 0;
                     blk_dev->part.lock = rt_sem_create("sem_sd0", 1, RT_IPC_FLAG_FIFO);
-    
+
                     /* register mmcsd device */
                     blk_dev->dev.type  = RT_Device_Class_Block;
 #ifdef RT_USING_DEVICE_OPS
@@ -454,9 +454,9 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
 
                     blk_dev->geometry.bytes_per_sector = 1<<9;
                     blk_dev->geometry.block_size = card->card_blksize;
-                    blk_dev->geometry.sector_count = 
+                    blk_dev->geometry.sector_count =
                         card->card_capacity * (1024 / 512);
-    
+
                     rt_device_register(&blk_dev->dev, "sd0",
                         RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
                     rt_list_insert_after(&blk_devices, &blk_dev->list);
@@ -472,9 +472,9 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
 #ifdef RT_USING_DFS_MNTTABLE
             if (blk_dev)
             {
-            	LOG_I("try to mount file system!");
-            	/* try to mount file system on this block device */
-            	dfs_mount_device(&(blk_dev->dev));
+                LOG_I("try to mount file system!");
+                /* try to mount file system on this block device */
+                dfs_mount_device(&(blk_dev->dev));
             }
 #endif
         }
@@ -484,10 +484,10 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
         LOG_E("read mmcsd first sector failed");
         err = -RT_ERROR;
     }
-    
+
     /* release sector buffer */
     rt_free(sector);
-    
+
     return err;
 }
 
@@ -499,15 +499,15 @@ void rt_mmcsd_blk_remove(struct rt_mmcsd_card *card)
     for (l = (&blk_devices)->next, n = l->next; l != &blk_devices; l = n)
     {
         blk_dev = (struct mmcsd_blk_device *)rt_list_entry(l, struct mmcsd_blk_device, list);
-        if (blk_dev->card == card) 
+        if (blk_dev->card == card)
         {
-        	/* unmount file system */
-        	const char * mounted_path = dfs_filesystem_get_mounted_path(&(blk_dev->dev));
-        	if (mounted_path)
-        	{
+            /* unmount file system */
+            const char * mounted_path = dfs_filesystem_get_mounted_path(&(blk_dev->dev));
+            if (mounted_path)
+            {
                   dfs_unmount(mounted_path);
                   LOG_D("unmount file system %s for device %s.\r\n", mounted_path, blk_dev->dev.parent.name);
-        	}
+            }
             rt_sem_delete(blk_dev->part.lock);
             rt_device_unregister(&blk_dev->dev);
             rt_list_remove(&blk_dev->list);
diff --git a/components/drivers/sdio/mmc.c b/components/drivers/sdio/mmc.c
index c1c56d37fd..5aba3dba7a 100644
--- a/components/drivers/sdio/mmc.c
+++ b/components/drivers/sdio/mmc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -45,9 +45,9 @@ static const rt_uint8_t tacc_value[] =
 rt_inline rt_uint32_t GET_BITS(rt_uint32_t *resp,
                                rt_uint32_t  start,
                                rt_uint32_t  size)
-{                               
+{
         const rt_int32_t __size = size;
-        const rt_uint32_t __mask = (__size < 32 ? 1 << __size : 0) - 1; 
+        const rt_uint32_t __mask = (__size < 32 ? 1 << __size : 0) - 1;
         const rt_int32_t __off = 3 - ((start) / 32);
         const rt_int32_t __shft = (start) & 31;
         rt_uint32_t __res;
@@ -67,7 +67,7 @@ static rt_int32_t mmcsd_parse_csd(struct rt_mmcsd_card *card)
       rt_uint32_t a, b;
       struct rt_mmcsd_csd *csd = &card->csd;
       rt_uint32_t *resp = card->resp_csd;
-      
+
       /*
       * We only understand CSD structure v1.1 and v1.2.
       * v1.2 has extra information in bits 15, 11 and 10.
@@ -76,10 +76,10 @@ static rt_int32_t mmcsd_parse_csd(struct rt_mmcsd_card *card)
       csd->csd_structure = GET_BITS(resp, 126, 2);
       if (csd->csd_structure == 0) {
         LOG_E("unrecognised CSD structure version %d!", csd->csd_structure);
-        
+
         return -RT_ERROR;
       }
-      
+
       csd->taac = GET_BITS(resp, 112, 8);
       csd->nsac = GET_BITS(resp, 104, 8);
       csd->tran_speed = GET_BITS(resp, 96, 8);
@@ -95,7 +95,7 @@ static rt_int32_t mmcsd_parse_csd(struct rt_mmcsd_card *card)
       csd->wr_blk_len = GET_BITS(resp, 22, 4);
       csd->wr_blk_partial = GET_BITS(resp, 21, 1);
       csd->csd_crc = GET_BITS(resp, 1, 7);
-      
+
       card->card_blksize = 1 << csd->rd_blk_len;
       card->tacc_clks = csd->nsac * 100;
       card->tacc_ns = (tacc_uint[csd->taac&0x07] * tacc_value[(csd->taac&0x78)>>3] + 9) / 10;
@@ -106,7 +106,7 @@ static rt_int32_t mmcsd_parse_csd(struct rt_mmcsd_card *card)
         card->erase_size = (a + 1) * (b + 1);
         card->erase_size <<= csd->wr_blk_len - 9;
       }
-      
+
       return 0;
 }
 
@@ -119,12 +119,12 @@ static int mmc_get_ext_csd(struct rt_mmcsd_card *card, rt_uint8_t **new_ext_csd)
   struct rt_mmcsd_req req;
   struct rt_mmcsd_cmd cmd;
   struct rt_mmcsd_data data;
-  
+
   *new_ext_csd = RT_NULL;
-  
+
   if (GET_BITS(card->resp_cid, 122, 4) < 4)
      return 0;
-  
+
   /*
   * As the ext_csd is so large and mostly unused, we don't store the
   * raw block in mmc_card.
@@ -134,29 +134,29 @@ static int mmc_get_ext_csd(struct rt_mmcsd_card *card, rt_uint8_t **new_ext_csd)
     LOG_E("alloc memory failed when get ext csd!");
     return -RT_ENOMEM;
   }
-  
+
   rt_memset(&req, 0, sizeof(struct rt_mmcsd_req));
   rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
   rt_memset(&data, 0, sizeof(struct rt_mmcsd_data));
-  
+
   req.cmd = &cmd;
   req.data = &data;
-  
+
   cmd.cmd_code = SEND_EXT_CSD;
   cmd.arg = 0;
-  
+
   /* NOTE HACK:  the RESP_SPI_R1 is always correct here, but we
   * rely on callers to never use this with "native" calls for reading
   * CSD or CID.  Native versions of those commands use the R2 type,
   * not R1 plus a data block.
   */
   cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_ADTC;
-  
+
   data.blksize = 512;
   data.blks = 1;
   data.flags = DATA_DIR_READ;
   data.buf = ext_csd;
-  
+
   /*
   * Some cards require longer data read timeout than indicated in CSD.
   * Address this by setting the read timeout to a "reasonably high"
@@ -165,14 +165,14 @@ static int mmc_get_ext_csd(struct rt_mmcsd_card *card, rt_uint8_t **new_ext_csd)
   */
   data.timeout_ns = 300000000;
   data.timeout_clks = 0;
-  
+
   mmcsd_send_request(card->host, &req);
-  
+
   if (cmd.err)
     return cmd.err;
   if (data.err)
     return data.err;
-  
+
   *new_ext_csd = ext_csd;
   return 0;
 }
@@ -192,13 +192,13 @@ static int mmc_parse_ext_csd(struct rt_mmcsd_card *card, rt_uint8_t *ext_csd)
 
   card->flags |=  CARD_FLAG_HIGHSPEED;
   card->hs_max_data_rate = 52000000;
-  
+
   card_capacity = *((rt_uint32_t *)&ext_csd[EXT_CSD_SEC_CNT]);
   card_capacity *= card->card_blksize;
   card_capacity >>= 10; /* unit:KB */
   card->card_capacity = card_capacity;
   LOG_I("emmc card capacity %d KB.", card->card_capacity);
-  
+
   return 0;
 }
 
@@ -211,41 +211,41 @@ static int mmc_parse_ext_csd(struct rt_mmcsd_card *card, rt_uint8_t *ext_csd)
  *
  *   Modifies the EXT_CSD register for selected card.
  */
-static int mmc_switch(struct rt_mmcsd_card *card, rt_uint8_t set, 
+static int mmc_switch(struct rt_mmcsd_card *card, rt_uint8_t set,
                       rt_uint8_t index, rt_uint8_t value)
 {
   int err;
   struct rt_mmcsd_host *host = card->host;
   struct rt_mmcsd_cmd cmd = {0};
-  
+
   cmd.cmd_code = SWITCH;
   cmd.arg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
     (index << 16) | (value << 8) | set;
   cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_AC;
-  
+
   err = mmcsd_send_cmd(host, &cmd, 3);
   if (err)
     return err;
-  
+
   return 0;
 }
 
-static int mmc_compare_ext_csds(struct rt_mmcsd_card *card, 
+static int mmc_compare_ext_csds(struct rt_mmcsd_card *card,
                                 rt_uint8_t *ext_csd, rt_uint32_t bus_width)
 {
   rt_uint8_t *bw_ext_csd;
   int err;
-  
+
   if (bus_width == MMCSD_BUS_WIDTH_1)
     return 0;
-  
+
   err = mmc_get_ext_csd(card, &bw_ext_csd);
-  
+
   if (err || bw_ext_csd == RT_NULL) {
     err = -RT_ERROR;
     goto out;
   }
-  
+
   /* only compare read only fields */
   err = !((ext_csd[EXT_CSD_PARTITION_SUPPORT] == bw_ext_csd[EXT_CSD_PARTITION_SUPPORT]) &&
           (ext_csd[EXT_CSD_ERASED_MEM_CONT] == bw_ext_csd[EXT_CSD_ERASED_MEM_CONT]) &&
@@ -273,10 +273,10 @@ static int mmc_compare_ext_csds(struct rt_mmcsd_card *card,
           (ext_csd[EXT_CSD_PWR_CL_DDR_52_195] == bw_ext_csd[EXT_CSD_PWR_CL_DDR_52_195]) &&
           (ext_csd[EXT_CSD_PWR_CL_DDR_52_360] == bw_ext_csd[EXT_CSD_PWR_CL_DDR_52_360]) &&
           (ext_csd[EXT_CSD_PWR_CL_DDR_200_360] == bw_ext_csd[EXT_CSD_PWR_CL_DDR_200_360]));
-  
+
   if (err)
      err = -RT_ERROR;
-  
+
 out:
   rt_free(bw_ext_csd);
   return err;
@@ -302,10 +302,10 @@ static int mmc_select_bus_width(struct rt_mmcsd_card *card, rt_uint8_t *ext_csd)
   struct rt_mmcsd_host *host = card->host;
   unsigned idx, bus_width = 0;
   int err = 0;
-  
+
   if (GET_BITS(card->resp_cid, 122, 4) < 4)
      return 0;
-  
+
   /*
   * Unlike SD, MMC cards dont have a configuration register to notify
   * supported bus width. So bus test command should be run to identify
@@ -323,18 +323,18 @@ static int mmc_select_bus_width(struct rt_mmcsd_card *card, rt_uint8_t *ext_csd)
     * set by drivers.
     */
      if ((!(host->flags & MMCSD_BUSWIDTH_8) &&
-	  ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_8) ||
+      ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_8) ||
          (!(host->flags & MMCSD_BUSWIDTH_4) &&
-	  (ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_4 ||
-	  ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_8)))
-	     continue;
+      (ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_4 ||
+      ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_8)))
+         continue;
 
     err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
                      EXT_CSD_BUS_WIDTH,
                      ext_csd_bits[idx]);
     if (err)
       continue;
-    
+
     bus_width = bus_widths[idx];
     mmcsd_set_bus_width(host, bus_width);
     mmcsd_delay_ms(20); //delay 10ms
@@ -358,10 +358,10 @@ static int mmc_select_bus_width(struct rt_mmcsd_card *card, rt_uint8_t *ext_csd)
       }
     }
   }
-  
+
   return err;
 }
-rt_err_t mmc_send_op_cond(struct rt_mmcsd_host *host, 
+rt_err_t mmc_send_op_cond(struct rt_mmcsd_host *host,
                           rt_uint32_t ocr, rt_uint32_t *rocr)
 {
     struct rt_mmcsd_cmd cmd;
@@ -369,20 +369,20 @@ rt_err_t mmc_send_op_cond(struct rt_mmcsd_host *host,
     rt_err_t err = RT_EOK;
 
     rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
-    
+
     cmd.cmd_code = SEND_OP_COND;
     cmd.arg = controller_is_spi(host) ? 0 : ocr;
     cmd.flags = RESP_SPI_R1 | RESP_R3 | CMD_BCR;
-  
+
     for (i = 100; i; i--) {
       err = mmcsd_send_cmd(host, &cmd, 3);
       if (err)
         break;
-      
+
       /* if we're just probing, do a single pass */
       if (ocr == 0)
         break;
-      
+
       /* otherwise wait until reset completes */
       if (controller_is_spi(host)) {
         if (!(cmd.resp[0] & R1_SPI_IDLE))
@@ -391,15 +391,15 @@ rt_err_t mmc_send_op_cond(struct rt_mmcsd_host *host,
         if (cmd.resp[0] & CARD_BUSY)
           break;
       }
-      
+
       err = -RT_ETIMEOUT;
-      
+
       mmcsd_delay_ms(10); //delay 10ms
     }
-  
+
   if (rocr && !controller_is_spi(host))
     *rocr = cmd.resp[0];
-  
+
   return err;
 }
 
@@ -407,17 +407,17 @@ static rt_err_t mmc_set_card_addr(struct rt_mmcsd_host *host, rt_uint32_t rca)
 {
   rt_err_t err;
   struct rt_mmcsd_cmd cmd;
-  
+
   rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
-  
+
   cmd.cmd_code = SET_RELATIVE_ADDR;
   cmd.arg = rca << 16;
   cmd.flags = RESP_R1 | CMD_AC;
-  
+
   err = mmcsd_send_cmd(host, &cmd, 3);
   if (err)
     return err;
-  
+
   return 0;
 }
 
@@ -432,19 +432,19 @@ static rt_int32_t mmcsd_mmc_init_card(struct rt_mmcsd_host *host,
     struct rt_mmcsd_card *card = RT_NULL;
 
     mmcsd_go_idle(host);
-    
+
     /* The extra bit indicates that we support high capacity */
     err = mmc_send_op_cond(host, ocr | (1 << 30), &rocr);
     if (err)
       goto err;
-    
-    if (controller_is_spi(host)) 
+
+    if (controller_is_spi(host))
     {
         err = mmcsd_spi_use_crc(host, 1);
         if (err)
             goto err1;
     }
-    
+
     if (controller_is_spi(host))
         err = mmcsd_get_cid(host, resp);
     else
@@ -453,7 +453,7 @@ static rt_int32_t mmcsd_mmc_init_card(struct rt_mmcsd_host *host,
         goto err;
 
     card = rt_malloc(sizeof(struct rt_mmcsd_card));
-    if (!card) 
+    if (!card)
     {
         LOG_E("malloc card failed!");
         err = -RT_ENOMEM;
@@ -469,7 +469,7 @@ static rt_int32_t mmcsd_mmc_init_card(struct rt_mmcsd_host *host,
     /*
      * For native busses:  get card RCA and quit open drain mode.
      */
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         err = mmc_set_card_addr(host, card->rca);
         if (err)
@@ -486,24 +486,24 @@ static rt_int32_t mmcsd_mmc_init_card(struct rt_mmcsd_host *host,
     if (err)
         goto err1;
 
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         err = mmcsd_select_card(card);
         if (err)
             goto err1;
     }
-    
+
     /*
     * Fetch and process extended CSD.
     */
-    
+
     err = mmc_get_ext_csd(card, &ext_csd);
     if (err)
       goto err1;
     err = mmc_parse_ext_csd(card, ext_csd);
     if (err)
       goto err1;
-    
+
     /* If doing byte addressing, check if required to do sector
     * addressing.  Handle the case of <2GB cards needing sector
     * addressing.  See section 8.1 JEDEC Standard JED84-A441;
@@ -511,9 +511,9 @@ static rt_int32_t mmcsd_mmc_init_card(struct rt_mmcsd_host *host,
     */
     if (!(card->flags & CARD_FLAG_SDHC) && (rocr & (1<<30)))
         card->flags |= CARD_FLAG_SDHC;
- 
+
     /* set bus speed */
-    if (card->flags & CARD_FLAG_HIGHSPEED) 
+    if (card->flags & CARD_FLAG_HIGHSPEED)
         max_data_rate = card->hs_max_data_rate;
     else
         max_data_rate = card->max_data_rate;
@@ -522,7 +522,7 @@ static rt_int32_t mmcsd_mmc_init_card(struct rt_mmcsd_host *host,
 
     /*switch bus width*/
     mmc_select_bus_width(card, ext_csd);
-    
+
     host->card = card;
 
     rt_free(ext_csd);
diff --git a/components/drivers/sdio/mmcsd_core.c b/components/drivers/sdio/mmcsd_core.c
index 99bc6ce744..e3bf97069c 100644
--- a/components/drivers/sdio/mmcsd_core.c
+++ b/components/drivers/sdio/mmcsd_core.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -63,7 +63,7 @@ void mmcsd_send_request(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req)
         req->cmd->err = 0;
         req->cmd->mrq = req;
         if (req->data)
-        {   
+        {
             req->cmd->data = req->data;
             req->data->err = 0;
             req->data->mrq = req;
@@ -72,12 +72,12 @@ void mmcsd_send_request(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req)
                 req->data->stop = req->stop;
                 req->stop->err = 0;
                 req->stop->mrq = req;
-            }       
+            }
         }
         host->ops->request(host, req);
 
         rt_sem_take(&host->sem_ack, RT_WAITING_FOREVER);
-          
+
     } while(req->cmd->err && (req->cmd->retries > 0));
 
 
@@ -122,7 +122,7 @@ rt_int32_t mmcsd_go_idle(struct rt_mmcsd_host *host)
 
     mmcsd_delay_ms(1);
 
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         mmcsd_set_chip_select(host, MMCSD_CS_IGNORE);
         mmcsd_delay_ms(1);
@@ -179,7 +179,7 @@ rt_int32_t mmcsd_get_cid(struct rt_mmcsd_host *host, rt_uint32_t *cid)
     struct rt_mmcsd_data data;
     rt_uint32_t *buf = RT_NULL;
 
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         if (!host->card)
             return -RT_ERROR;
@@ -198,7 +198,7 @@ rt_int32_t mmcsd_get_cid(struct rt_mmcsd_host *host, rt_uint32_t *cid)
     }
 
     buf = (rt_uint32_t *)rt_malloc(16);
-    if (!buf) 
+    if (!buf)
     {
         LOG_E("allocate memory failed!");
 
@@ -274,7 +274,7 @@ rt_int32_t mmcsd_get_csd(struct rt_mmcsd_card *card, rt_uint32_t *csd)
     }
 
     buf = (rt_uint32_t*)rt_malloc(16);
-    if (!buf) 
+    if (!buf)
     {
         LOG_E("allocate memory failed!");
 
@@ -336,12 +336,12 @@ static rt_int32_t _mmcsd_select_card(struct rt_mmcsd_host *host,
 
     cmd.cmd_code = SELECT_CARD;
 
-    if (card) 
+    if (card)
     {
         cmd.arg = card->rca << 16;
         cmd.flags = RESP_R1 | CMD_AC;
-    } 
-    else 
+    }
+    else
     {
         cmd.arg = 0;
         cmd.flags = RESP_NONE | CMD_AC;
@@ -442,7 +442,7 @@ void mmcsd_set_data_timeout(struct rt_mmcsd_data       *data,
 {
     rt_uint32_t mult;
 
-    if (card->card_type == CARD_TYPE_SDIO) 
+    if (card->card_type == CARD_TYPE_SDIO)
     {
         data->timeout_ns = 1000000000;  /* SDIO card 1s */
         data->timeout_clks = 0;
@@ -468,7 +468,7 @@ void mmcsd_set_data_timeout(struct rt_mmcsd_data       *data,
     /*
      * SD cards also have an upper limit on the timeout.
      */
-    if (card->card_type == CARD_TYPE_SD) 
+    if (card->card_type == CARD_TYPE_SD)
     {
         rt_uint32_t timeout_us, limit_us;
 
@@ -488,21 +488,21 @@ void mmcsd_set_data_timeout(struct rt_mmcsd_data       *data,
         /*
          * SDHC cards always use these fixed values.
          */
-        if (timeout_us > limit_us || card->flags & CARD_FLAG_SDHC) 
+        if (timeout_us > limit_us || card->flags & CARD_FLAG_SDHC)
         {
             data->timeout_ns = limit_us * 1000; /* SDHC card fixed 250ms */
             data->timeout_clks = 0;
         }
     }
 
-    if (controller_is_spi(card->host)) 
+    if (controller_is_spi(card->host))
     {
-        if (data->flags & DATA_DIR_WRITE) 
+        if (data->flags & DATA_DIR_WRITE)
         {
             if (data->timeout_ns < 1000000000)
                 data->timeout_ns = 1000000000;  /* 1s */
-        } 
-        else 
+        }
+        else
         {
             if (data->timeout_ns < 100000000)
                 data->timeout_ns =  100000000;  /* 100ms */
@@ -522,7 +522,7 @@ rt_uint32_t mmcsd_select_voltage(struct rt_mmcsd_host *host, rt_uint32_t ocr)
     ocr &= host->valid_ocr;
 
     bit = __rt_ffs(ocr);
-    if (bit) 
+    if (bit)
     {
         bit -= 1;
 
@@ -530,8 +530,8 @@ rt_uint32_t mmcsd_select_voltage(struct rt_mmcsd_host *host, rt_uint32_t ocr)
 
         host->io_cfg.vdd = bit;
         mmcsd_set_iocfg(host);
-    } 
-    else 
+    }
+    else
     {
         LOG_W("host doesn't support card's voltages!");
         ocr = 0;
@@ -549,7 +549,7 @@ static void mmcsd_power_up(struct rt_mmcsd_host *host)
     {
         host->io_cfg.chip_select = MMCSD_CS_HIGH;
         host->io_cfg.bus_mode = MMCSD_BUSMODE_PUSHPULL;
-    } 
+    }
     else
     {
         host->io_cfg.chip_select = MMCSD_CS_IGNORE;
@@ -580,7 +580,7 @@ static void mmcsd_power_off(struct rt_mmcsd_host *host)
 {
     host->io_cfg.clock = 0;
     host->io_cfg.vdd = 0;
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         host->io_cfg.bus_mode = MMCSD_BUSMODE_OPENDRAIN;
         host->io_cfg.chip_select = MMCSD_CS_IGNORE;
@@ -619,7 +619,7 @@ void mmcsd_detect(void *param)
     rt_uint32_t  ocr;
     rt_int32_t  err;
 
-    while (1) 
+    while (1)
     {
         if (rt_mb_recv(&mmcsd_detect_mb, (rt_ubase_t *)&host, RT_WAITING_FOREVER) == RT_EOK)
         {
@@ -644,7 +644,7 @@ void mmcsd_detect(void *param)
                  * detect SD card
                  */
                 err = mmcsd_send_app_op_cond(host, 0, &ocr);
-                if (!err) 
+                if (!err)
                 {
                     if (init_sd(host, ocr))
                         mmcsd_power_off(host);
@@ -652,12 +652,12 @@ void mmcsd_detect(void *param)
                     rt_mb_send(&mmcsd_hotpluge_mb, (rt_ubase_t)host);
                     continue;
                 }
-                
+
                 /*
                  * detect mmc card
                  */
                 err = mmc_send_op_cond(host, 0, &ocr);
-                if (!err) 
+                if (!err)
                 {
                     if (init_mmc(host, ocr))
                         mmcsd_power_off(host);
@@ -669,21 +669,21 @@ void mmcsd_detect(void *param)
             }
             else
             {
-            	/* card removed */
-            	mmcsd_host_lock(host);
-            	if (host->card->sdio_function_num != 0)
-            	{
-            		LOG_W("unsupport sdio card plug out!");
-            	}
-            	else
-            	{
-            		rt_mmcsd_blk_remove(host->card);
-            		rt_free(host->card);
+                /* card removed */
+                mmcsd_host_lock(host);
+                if (host->card->sdio_function_num != 0)
+                {
+                    LOG_W("unsupport sdio card plug out!");
+                }
+                else
+                {
+                    rt_mmcsd_blk_remove(host->card);
+                    rt_free(host->card);
 
-            		host->card = RT_NULL;
-            	}
-            	mmcsd_host_unlock(host);
-            	rt_mb_send(&mmcsd_hotpluge_mb, (rt_ubase_t)host);
+                    host->card = RT_NULL;
+                }
+                mmcsd_host_unlock(host);
+                rt_mb_send(&mmcsd_hotpluge_mb, (rt_ubase_t)host);
             }
         }
     }
@@ -694,7 +694,7 @@ struct rt_mmcsd_host *mmcsd_alloc_host(void)
     struct rt_mmcsd_host *host;
 
     host = rt_malloc(sizeof(struct rt_mmcsd_host));
-    if (!host) 
+    if (!host)
     {
         LOG_E("alloc host failed");
 
@@ -736,16 +736,16 @@ int rt_mmcsd_core_init(void)
         &mmcsd_hotpluge_mb_pool[0], sizeof(mmcsd_hotpluge_mb_pool) / sizeof(mmcsd_hotpluge_mb_pool[0]),
         RT_IPC_FLAG_FIFO);
     RT_ASSERT(ret == RT_EOK);
-     ret = rt_thread_init(&mmcsd_detect_thread, "mmcsd_detect", mmcsd_detect, RT_NULL, 
+     ret = rt_thread_init(&mmcsd_detect_thread, "mmcsd_detect", mmcsd_detect, RT_NULL,
                  &mmcsd_stack[0], RT_MMCSD_STACK_SIZE, RT_MMCSD_THREAD_PREORITY, 20);
-    if (ret == RT_EOK) 
+    if (ret == RT_EOK)
     {
         rt_thread_startup(&mmcsd_detect_thread);
     }
 
     rt_sdio_init();
 
-	return 0;
+    return 0;
 }
 INIT_PREV_EXPORT(rt_mmcsd_core_init);
 
diff --git a/components/drivers/sdio/sd.c b/components/drivers/sdio/sd.c
index f7e4e46720..d739ee4eaf 100644
--- a/components/drivers/sdio/sd.c
+++ b/components/drivers/sdio/sd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -45,9 +45,9 @@ static const rt_uint8_t tacc_value[] =
 rt_inline rt_uint32_t GET_BITS(rt_uint32_t *resp,
                                rt_uint32_t  start,
                                rt_uint32_t  size)
-{                               
+{
         const rt_int32_t __size = size;
-        const rt_uint32_t __mask = (__size < 32 ? 1 << __size : 0) - 1; 
+        const rt_uint32_t __mask = (__size < 32 ? 1 << __size : 0) - 1;
         const rt_int32_t __off = 3 - ((start) / 32);
         const rt_int32_t __shft = (start) & 31;
         rt_uint32_t __res;
@@ -97,7 +97,7 @@ static rt_int32_t mmcsd_parse_csd(struct rt_mmcsd_card *card)
     case 1:
         card->flags |= CARD_FLAG_SDHC;
 
-        /*This field is fixed to 0Eh, which indicates 1 ms. 
+        /*This field is fixed to 0Eh, which indicates 1 ms.
           The host should not use TAAC, NSAC, and R2W_FACTOR
           to calculate timeout and should uses fixed timeout
           values for read and write operations*/
@@ -157,13 +157,13 @@ static rt_int32_t mmcsd_switch(struct rt_mmcsd_card *card)
     rt_uint8_t *buf;
 
     buf = (rt_uint8_t*)rt_malloc(64);
-    if (!buf) 
+    if (!buf)
     {
         LOG_E("alloc memory failed!");
 
         return -RT_ENOMEM;
     }
-    
+
     if (card->card_type != CARD_TYPE_SD)
         goto err;
     if (card->scr.sd_version < SCR_SPEC_VER_1)
@@ -191,7 +191,7 @@ static rt_int32_t mmcsd_switch(struct rt_mmcsd_card *card)
 
     mmcsd_send_request(host, &req);
 
-    if (cmd.err || data.err) 
+    if (cmd.err || data.err)
     {
         goto err1;
     }
@@ -221,12 +221,12 @@ static rt_int32_t mmcsd_switch(struct rt_mmcsd_card *card)
 
     mmcsd_send_request(host, &req);
 
-    if (cmd.err || data.err) 
+    if (cmd.err || data.err)
     {
         goto err1;
     }
 
-    if ((buf[16] & 0xF) != 1) 
+    if ((buf[16] & 0xF) != 1)
     {
         LOG_I("switching card to high speed failed!");
         goto err;
@@ -255,12 +255,12 @@ static rt_err_t mmcsd_app_cmd(struct rt_mmcsd_host *host,
 
     cmd.cmd_code = APP_CMD;
 
-    if (card) 
+    if (card)
     {
         cmd.arg = card->rca << 16;
         cmd.flags = RESP_R1 | CMD_AC;
-    } 
-    else 
+    }
+    else
     {
         cmd.arg = 0;
         cmd.flags = RESP_R1 | CMD_BCR;
@@ -285,7 +285,7 @@ rt_err_t mmcsd_send_app_cmd(struct rt_mmcsd_host *host,
 {
     struct rt_mmcsd_req req;
 
-    rt_uint32_t i; 
+    rt_uint32_t i;
     rt_err_t err;
 
     err = -RT_ERROR;
@@ -294,15 +294,15 @@ rt_err_t mmcsd_send_app_cmd(struct rt_mmcsd_host *host,
      * We have to resend MMC_APP_CMD for each attempt so
      * we cannot use the retries field in mmc_command.
      */
-    for (i = 0;i <= retry;i++) 
+    for (i = 0;i <= retry;i++)
     {
         rt_memset(&req, 0, sizeof(struct rt_mmcsd_req));
 
         err = mmcsd_app_cmd(host, card);
-        if (err) 
+        if (err)
         {
             /* no point in retrying; no APP commands allowed */
-            if (controller_is_spi(host)) 
+            if (controller_is_spi(host))
             {
                 if (cmd->resp[0] & R1_SPI_ILLEGAL_COMMAND)
                     break;
@@ -324,7 +324,7 @@ rt_err_t mmcsd_send_app_cmd(struct rt_mmcsd_host *host,
             break;
 
         /* no point in retrying illegal APP commands */
-        if (controller_is_spi(host)) 
+        if (controller_is_spi(host))
         {
             if (cmd->resp[0] & R1_SPI_ILLEGAL_COMMAND)
                 break;
@@ -344,7 +344,7 @@ rt_err_t mmcsd_app_set_bus_width(struct rt_mmcsd_card *card, rt_int32_t width)
     cmd.cmd_code = SD_APP_SET_BUS_WIDTH;
     cmd.flags = RESP_R1 | CMD_AC;
 
-    switch (width) 
+    switch (width)
     {
     case MMCSD_BUS_WIDTH_1:
         cmd.arg = MMCSD_BUS_WIDTH_1;
@@ -380,7 +380,7 @@ rt_err_t mmcsd_send_app_op_cond(struct rt_mmcsd_host *host,
         cmd.arg = ocr;
     cmd.flags = RESP_SPI_R1 | RESP_R3 | CMD_BCR;
 
-    for (i = 100; i; i--) 
+    for (i = 100; i; i--)
     {
         err = mmcsd_send_app_cmd(host, RT_NULL, &cmd, 3);
         if (err)
@@ -391,12 +391,12 @@ rt_err_t mmcsd_send_app_op_cond(struct rt_mmcsd_host *host,
             break;
 
         /* otherwise wait until reset completes */
-        if (controller_is_spi(host)) 
+        if (controller_is_spi(host))
         {
             if (!(cmd.resp[0] & R1_SPI_IDLE))
                 break;
-        } 
-        else 
+        }
+        else
         {
             if (cmd.resp[0] & CARD_BUSY)
                 break;
@@ -544,7 +544,7 @@ static rt_int32_t mmcsd_sd_init_card(struct rt_mmcsd_host *host,
         goto err;
 
     card = rt_malloc(sizeof(struct rt_mmcsd_card));
-    if (!card) 
+    if (!card)
     {
         LOG_E("malloc card failed!");
         err = -RT_ENOMEM;
@@ -559,7 +559,7 @@ static rt_int32_t mmcsd_sd_init_card(struct rt_mmcsd_host *host,
     /*
      * For native busses:  get card RCA and quit open drain mode.
      */
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         err = mmcsd_get_card_addr(host, &card->rca);
         if (err)
@@ -576,7 +576,7 @@ static rt_int32_t mmcsd_sd_init_card(struct rt_mmcsd_host *host,
     if (err)
         goto err1;
 
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         err = mmcsd_select_card(card);
         if (err)
@@ -589,7 +589,7 @@ static rt_int32_t mmcsd_sd_init_card(struct rt_mmcsd_host *host,
 
     mmcsd_parse_scr(card);
 
-    if (controller_is_spi(host)) 
+    if (controller_is_spi(host))
     {
         err = mmcsd_spi_use_crc(host, 1);
         if (err)
@@ -606,12 +606,12 @@ static rt_int32_t mmcsd_sd_init_card(struct rt_mmcsd_host *host,
     /* set bus speed */
     max_data_rate = (unsigned int)-1;
 
-    if (card->flags & CARD_FLAG_HIGHSPEED) 
+    if (card->flags & CARD_FLAG_HIGHSPEED)
     {
         if (max_data_rate > card->hs_max_data_rate)
             max_data_rate = card->hs_max_data_rate;
-    } 
-    else if (max_data_rate > card->max_data_rate) 
+    }
+    else if (max_data_rate > card->max_data_rate)
     {
         max_data_rate = card->max_data_rate;
     }
@@ -620,7 +620,7 @@ static rt_int32_t mmcsd_sd_init_card(struct rt_mmcsd_host *host,
 
     /*switch bus width*/
     if ((host->flags & MMCSD_BUSWIDTH_4) &&
-        (card->scr.sd_bus_widths & SD_SCR_BUS_WIDTH_4)) 
+        (card->scr.sd_bus_widths & SD_SCR_BUS_WIDTH_4))
     {
         err = mmcsd_app_set_bus_width(card, MMCSD_BUS_WIDTH_4);
         if (err)
diff --git a/components/drivers/sdio/sdio.c b/components/drivers/sdio/sdio.c
index f0d5863a06..1263f205b5 100644
--- a/components/drivers/sdio/sdio.c
+++ b/components/drivers/sdio/sdio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -73,7 +73,7 @@ rt_int32_t sdio_io_send_op_cond(struct rt_mmcsd_host *host,
     cmd.arg = ocr;
     cmd.flags = RESP_SPI_R4 | RESP_R4 | CMD_BCR;
 
-    for (i = 100; i; i--) 
+    for (i = 100; i; i--)
     {
         err = mmcsd_send_cmd(host, &cmd, 0);
         if (err)
@@ -84,7 +84,7 @@ rt_int32_t sdio_io_send_op_cond(struct rt_mmcsd_host *host,
             break;
 
         /* otherwise wait until reset completes */
-        if (controller_is_spi(host)) 
+        if (controller_is_spi(host))
         {
             /*
              * Both R1_SPI_IDLE and MMC_CARD_BUSY indicate
@@ -94,8 +94,8 @@ rt_int32_t sdio_io_send_op_cond(struct rt_mmcsd_host *host,
              */
             if (cmd.resp[1] & CARD_BUSY)
                 break;
-        } 
-        else 
+        }
+        else
         {
             if (cmd.resp[0] & CARD_BUSY)
                 break;
@@ -143,7 +143,7 @@ rt_int32_t sdio_io_rw_direct(struct rt_mmcsd_card *card,
     if (err)
         return err;
 
-    if (!controller_is_spi(card->host)) 
+    if (!controller_is_spi(card->host))
     {
         if (cmd.resp[0] & R5_ERROR)
             return -RT_EIO;
@@ -153,7 +153,7 @@ rt_int32_t sdio_io_rw_direct(struct rt_mmcsd_card *card,
             return -RT_ERROR;
     }
 
-    if (!rw || raw) 
+    if (!rw || raw)
     {
         if (controller_is_spi(card->host))
             *pdata = (cmd.resp[0] >> 8) & 0xFF;
@@ -218,7 +218,7 @@ rt_int32_t sdio_io_rw_extended(struct rt_mmcsd_card *card,
     if (data.err)
         return data.err;
 
-    if (!controller_is_spi(card->host)) 
+    if (!controller_is_spi(card->host))
     {
         if (cmd.resp[0] & R5_ERROR)
             return -RT_EIO;
@@ -270,7 +270,7 @@ rt_int32_t sdio_io_rw_extended_block(struct rt_sdio_function *func,
                 blks = max_blks;
             len = blks * func->cur_blk_size;
 
-            ret = sdio_io_rw_extended(func->card, rw, func->num, 
+            ret = sdio_io_rw_extended(func->card, rw, func->num,
                   addr, op_code, buf, blks, func->cur_blk_size);
             if (ret)
                 return ret;
@@ -286,7 +286,7 @@ rt_int32_t sdio_io_rw_extended_block(struct rt_sdio_function *func,
     {
         len = MIN(left_size, sdio_max_block_size(func));
 
-        ret = sdio_io_rw_extended(func->card, rw, func->num, 
+        ret = sdio_io_rw_extended(func->card, rw, func->num,
                   addr, op_code, buf, 1, len);
         if (ret)
             return ret;
@@ -300,7 +300,7 @@ rt_int32_t sdio_io_rw_extended_block(struct rt_sdio_function *func,
     return 0;
 }
 
-rt_uint8_t sdio_io_readb(struct rt_sdio_function *func, 
+rt_uint8_t sdio_io_readb(struct rt_sdio_function *func,
                          rt_uint32_t              reg,
                          rt_int32_t              *err)
 {
@@ -317,7 +317,7 @@ rt_uint8_t sdio_io_readb(struct rt_sdio_function *func,
     return data;
 }
 
-rt_int32_t sdio_io_writeb(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_writeb(struct rt_sdio_function *func,
                           rt_uint32_t              reg,
                           rt_uint8_t               data)
 {
@@ -335,7 +335,7 @@ rt_uint16_t sdio_io_readw(struct rt_sdio_function *func,
         *err = 0;
 
     ret = sdio_io_rw_extended_block(func, 0, addr, 1, (rt_uint8_t *)&dmabuf, 2);
-    if (ret) 
+    if (ret)
     {
         if (err)
             *err = ret;
@@ -364,7 +364,7 @@ rt_uint32_t sdio_io_readl(struct rt_sdio_function *func,
         *err = 0;
 
     ret = sdio_io_rw_extended_block(func, 0, addr, 1, (rt_uint8_t *)&dmabuf, 4);
-    if (ret) 
+    if (ret)
     {
         if (err)
             *err = ret;
@@ -382,7 +382,7 @@ rt_int32_t sdio_io_writel(struct rt_sdio_function *func,
     return sdio_io_rw_extended_block(func, 1, addr, 1, (rt_uint8_t *)&dmabuf, 4);
 }
 
-rt_int32_t sdio_io_read_multi_fifo_b(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_read_multi_fifo_b(struct rt_sdio_function *func,
                                      rt_uint32_t              addr,
                                      rt_uint8_t              *buf,
                                      rt_uint32_t              len)
@@ -390,7 +390,7 @@ rt_int32_t sdio_io_read_multi_fifo_b(struct rt_sdio_function *func,
     return sdio_io_rw_extended_block(func, 0, addr, 0, buf, len);
 }
 
-rt_int32_t sdio_io_write_multi_fifo_b(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_write_multi_fifo_b(struct rt_sdio_function *func,
                                       rt_uint32_t              addr,
                                       rt_uint8_t              *buf,
                                       rt_uint32_t              len)
@@ -398,7 +398,7 @@ rt_int32_t sdio_io_write_multi_fifo_b(struct rt_sdio_function *func,
     return sdio_io_rw_extended_block(func, 1, addr, 0, buf, len);
 }
 
-rt_int32_t sdio_io_read_multi_incr_b(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_read_multi_incr_b(struct rt_sdio_function *func,
                                      rt_uint32_t              addr,
                                      rt_uint8_t              *buf,
                                      rt_uint32_t              len)
@@ -406,7 +406,7 @@ rt_int32_t sdio_io_read_multi_incr_b(struct rt_sdio_function *func,
     return sdio_io_rw_extended_block(func, 0, addr, 1, buf, len);
 }
 
-rt_int32_t sdio_io_write_multi_incr_b(struct rt_sdio_function *func, 
+rt_int32_t sdio_io_write_multi_incr_b(struct rt_sdio_function *func,
                                       rt_uint32_t              addr,
                                       rt_uint8_t              *buf,
                                       rt_uint32_t              len)
@@ -428,7 +428,7 @@ static rt_int32_t sdio_read_cccr(struct rt_mmcsd_card *card)
 
     cccr_version = data & 0x0f;
 
-    if (cccr_version > SDIO_CCCR_REV_3_00) 
+    if (cccr_version > SDIO_CCCR_REV_3_00)
     {
         LOG_E("unrecognised CCCR structure version %d", cccr_version);
 
@@ -450,7 +450,7 @@ static rt_int32_t sdio_read_cccr(struct rt_mmcsd_card *card)
     if (data & SDIO_CCCR_CAP_4BLS)
         card->cccr.bus_width = 1;
 
-    if (cccr_version >= SDIO_CCCR_REV_1_10) 
+    if (cccr_version >= SDIO_CCCR_REV_1_10)
     {
         data = sdio_io_readb(card->sdio_function[0], SDIO_REG_CCCR_POWER_CTRL, &ret);
         if (ret)
@@ -460,7 +460,7 @@ static rt_int32_t sdio_read_cccr(struct rt_mmcsd_card *card)
             card->cccr.power_ctrl = 1;
     }
 
-    if (cccr_version >= SDIO_CCCR_REV_1_20) 
+    if (cccr_version >= SDIO_CCCR_REV_1_20)
     {
         data = sdio_io_readb(card->sdio_function[0], SDIO_REG_CCCR_SPEED, &ret);
         if (ret)
@@ -531,7 +531,7 @@ static rt_int32_t sdio_read_cis(struct rt_sdio_function *func)
 
     for (i = 0; i < 3; i++)
     {
-        data = sdio_io_readb(func0, 
+        data = sdio_io_readb(func0,
             SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_CIS + i, &ret);
         if (ret)
             return ret;
@@ -560,13 +560,13 @@ static rt_int32_t sdio_read_cis(struct rt_sdio_function *func)
             return -RT_ENOMEM;
         curr->data = (rt_uint8_t *)curr + sizeof(struct rt_sdio_function_tuple);
 
-        for (i = 0; i < tpl_link; i++) 
+        for (i = 0; i < tpl_link; i++)
         {
             curr->data[i] = sdio_io_readb(func0, cisptr + i, &ret);
             if (ret)
                 break;
         }
-        if (ret) 
+        if (ret)
         {
             rt_free(curr);
             break;
@@ -618,7 +618,7 @@ static rt_int32_t sdio_read_cis(struct rt_sdio_function *func)
                 LOG_D("CISTPL_VERS_1 too short");
             }
             break;
-        default: 
+        default:
             /* this tuple is unknown to the core */
             curr->next = RT_NULL;
             curr->code = tpl_code;
@@ -651,7 +651,7 @@ void sdio_free_cis(struct rt_sdio_function *func)
 
     tuple = func->tuples;
 
-    while (tuple && ((tuple != card->sdio_function[0]->tuples) || (!func->num))) 
+    while (tuple && ((tuple != card->sdio_function[0]->tuples) || (!func->num)))
     {
         tmp = tuple;
         tuple = tuple->next;
@@ -667,16 +667,16 @@ static rt_int32_t sdio_read_fbr(struct rt_sdio_function *func)
     rt_uint8_t data;
     struct rt_sdio_function *func0 = func->card->sdio_function[0];
 
-    data = sdio_io_readb(func0, 
+    data = sdio_io_readb(func0,
         SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_STD_FUNC_IF, &ret);
     if (ret)
         goto err;
 
     data &= 0x0f;
 
-    if (data == 0x0f) 
+    if (data == 0x0f)
     {
-        data = sdio_io_readb(func0, 
+        data = sdio_io_readb(func0,
             SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_STD_IF_EXT, &ret);
         if (ret)
             goto err;
@@ -835,7 +835,7 @@ static rt_int32_t sdio_init_card(struct rt_mmcsd_host *host, rt_uint32_t ocr)
     if (err)
         goto err;
 
-    if (controller_is_spi(host)) 
+    if (controller_is_spi(host))
     {
         err = mmcsd_spi_use_crc(host, host->spi_use_crc);
         if (err)
@@ -845,7 +845,7 @@ static rt_int32_t sdio_init_card(struct rt_mmcsd_host *host, rt_uint32_t ocr)
     function_num = (cmd5_resp & 0x70000000) >> 28;
 
     card = rt_malloc(sizeof(struct rt_mmcsd_card));
-    if (!card) 
+    if (!card)
     {
         LOG_E("malloc card failed");
         err = -RT_ENOMEM;
@@ -869,7 +869,7 @@ static rt_int32_t sdio_init_card(struct rt_mmcsd_host *host, rt_uint32_t ocr)
     card->sdio_function[0]->card = card;
     card->sdio_function[0]->num = 0;
 
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         err = mmcsd_get_card_addr(host, &card->rca);
         if (err)
@@ -878,7 +878,7 @@ static rt_int32_t sdio_init_card(struct rt_mmcsd_host *host, rt_uint32_t ocr)
         mmcsd_set_bus_mode(host, MMCSD_BUSMODE_PUSHPULL);
     }
 
-    if (!controller_is_spi(host)) 
+    if (!controller_is_spi(host))
     {
         err = mmcsd_select_card(card);
         if (err)
@@ -897,7 +897,7 @@ static rt_int32_t sdio_init_card(struct rt_mmcsd_host *host, rt_uint32_t ocr)
     if (err)
         goto err2;
 
-    if (card->flags & CARD_FLAG_HIGHSPEED) 
+    if (card->flags & CARD_FLAG_HIGHSPEED)
     {
         mmcsd_set_clock(host, card->host->freq_max > 50000000 ? 50000000 : card->host->freq_max);
     }
@@ -910,7 +910,7 @@ static rt_int32_t sdio_init_card(struct rt_mmcsd_host *host, rt_uint32_t ocr)
     if (err)
         goto err2;
 
-    for (i = 1; i < function_num + 1; i++) 
+    for (i = 1; i < function_num + 1; i++)
     {
         err = sdio_initialize_function(card, i);
         if (err)
@@ -954,7 +954,7 @@ err1:
     }
 err:
     LOG_E("error %d while initialising SDIO card", err);
-    
+
     return err;
 }
 
@@ -965,13 +965,13 @@ rt_int32_t init_sdio(struct rt_mmcsd_host *host, rt_uint32_t ocr)
 
     RT_ASSERT(host != RT_NULL);
 
-    if (ocr & 0x7F) 
+    if (ocr & 0x7F)
     {
         LOG_W("Card ocr below the defined voltage rang.");
         ocr &= ~0x7F;
     }
 
-    if (ocr & VDD_165_195) 
+    if (ocr & VDD_165_195)
     {
         LOG_W("Can't support the low voltage SDIO card.");
         ocr &= ~VDD_165_195;
@@ -979,7 +979,7 @@ rt_int32_t init_sdio(struct rt_mmcsd_host *host, rt_uint32_t ocr)
 
     current_ocr = mmcsd_select_voltage(host, ocr);
 
-    if (!current_ocr) 
+    if (!current_ocr)
     {
         err = -RT_ERROR;
         goto err;
@@ -1011,35 +1011,35 @@ static void sdio_irq_thread(void *param)
     card = host->card;
     RT_ASSERT(card != RT_NULL);
 
-    while (1) 
+    while (1)
     {
         if (rt_sem_take(host->sdio_irq_sem, RT_WAITING_FOREVER) == RT_EOK)
         {
             mmcsd_host_lock(host);
-            pending = sdio_io_readb(host->card->sdio_function[0], 
+            pending = sdio_io_readb(host->card->sdio_function[0],
                         SDIO_REG_CCCR_INT_PEND, &ret);
-            if (ret) 
+            if (ret)
             {
                 mmcsd_dbg("error %d reading SDIO_REG_CCCR_INT_PEND\n", ret);
                 goto out;
             }
 
-            for (i = 1; i <= 7; i++) 
+            for (i = 1; i <= 7; i++)
             {
-                if (pending & (1 << i)) 
+                if (pending & (1 << i))
                 {
                     struct rt_sdio_function *func = card->sdio_function[i];
-                    if (!func) 
+                    if (!func)
                     {
                         mmcsd_dbg("pending IRQ for "
                             "non-existant function %d\n", func->num);
                         goto out;
-                    } 
-                    else if (func->irq_handler) 
+                    }
+                    else if (func->irq_handler)
                     {
                         func->irq_handler(func);
-                    } 
-                    else 
+                    }
+                    else
                     {
                         mmcsd_dbg("pending IRQ with no register handler\n");
                         goto out;
@@ -1067,9 +1067,9 @@ static rt_int32_t sdio_irq_thread_create(struct rt_mmcsd_card *card)
         host->sdio_irq_sem = rt_sem_create("sdio_irq", 0, RT_IPC_FLAG_FIFO);
         RT_ASSERT(host->sdio_irq_sem != RT_NULL);
 
-        host->sdio_irq_thread = rt_thread_create("sdio_irq", sdio_irq_thread, host, 
+        host->sdio_irq_thread = rt_thread_create("sdio_irq", sdio_irq_thread, host,
                              RT_SDIO_STACK_SIZE, RT_SDIO_THREAD_PRIORITY, 20);
-        if (host->sdio_irq_thread != RT_NULL) 
+        if (host->sdio_irq_thread != RT_NULL)
         {
             rt_thread_startup(host->sdio_irq_thread);
         }
@@ -1085,7 +1085,7 @@ static rt_int32_t sdio_irq_thread_delete(struct rt_mmcsd_card *card)
     RT_ASSERT(host->sdio_irq_num > 0);
 
     host->sdio_irq_num--;
-    if (!host->sdio_irq_num) 
+    if (!host->sdio_irq_num)
     {
         if (host->flags & MMCSD_SUP_SDIO_IRQ)
             host->ops->enable_sdio_irq(host, 0);
@@ -1112,7 +1112,7 @@ rt_int32_t sdio_attach_irq(struct rt_sdio_function *func,
 
     mmcsd_dbg("SDIO: enabling IRQ for function %d\n", func->num);
 
-    if (func->irq_handler) 
+    if (func->irq_handler)
     {
         mmcsd_dbg("SDIO: IRQ for already in use.\n");
 
@@ -1153,7 +1153,7 @@ rt_int32_t sdio_detach_irq(struct rt_sdio_function *func)
 
     mmcsd_dbg("SDIO: disabling IRQ for function %d\n", func->num);
 
-    if (func->irq_handler) 
+    if (func->irq_handler)
     {
         func->irq_handler = RT_NULL;
         sdio_irq_thread_delete(func->card);
@@ -1210,7 +1210,7 @@ rt_int32_t sdio_enable_func(struct rt_sdio_function *func)
 
     timeout = rt_tick_get() + func->enable_timeout_val * RT_TICK_PER_SECOND / 1000;
 
-    while (1) 
+    while (1)
     {
         reg = sdio_io_readb(func0, SDIO_REG_CCCR_IO_RDY, &ret);
         if (ret)
@@ -1282,17 +1282,17 @@ rt_int32_t sdio_set_block_size(struct rt_sdio_function *func,
     if (blksize > func->card->host->max_blk_size)
         return -RT_ERROR;
 
-    if (blksize == 0) 
+    if (blksize == 0)
     {
         blksize = MIN(func->max_blk_size, func->card->host->max_blk_size);
         blksize = MIN(blksize, 512u);
     }
 
-    ret = sdio_io_writeb(func0, SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_BLKSIZE, 
+    ret = sdio_io_writeb(func0, SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_BLKSIZE,
                  blksize & 0xff);
     if (ret)
         return ret;
-    ret = sdio_io_writeb(func0, SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_BLKSIZE + 1, 
+    ret = sdio_io_writeb(func0, SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_BLKSIZE + 1,
                  (blksize >> 8) & 0xff);
     if (ret)
         return ret;
@@ -1305,14 +1305,14 @@ rt_inline rt_int32_t sdio_match_card(struct rt_mmcsd_card           *card,
                                      const struct rt_sdio_device_id *id)
 {
     rt_uint8_t num = 1;
-    
-    if ((id->manufacturer != SDIO_ANY_MAN_ID) && 
+
+    if ((id->manufacturer != SDIO_ANY_MAN_ID) &&
         (id->manufacturer != card->cis.manufacturer))
         return 0;
-    
+
     while (num <= card->sdio_function_num)
     {
-        if ((id->product != SDIO_ANY_PROD_ID) && 
+        if ((id->product != SDIO_ANY_PROD_ID) &&
             (id->product == card->sdio_function[num]->product))
             return 1;
         num++;
diff --git a/components/drivers/sensors/sensor.c b/components/drivers/sensors/sensor.c
index 660b86f85b..ccc1fca34e 100644
--- a/components/drivers/sensors/sensor.c
+++ b/components/drivers/sensors/sensor.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/sensors/sensor.h b/components/drivers/sensors/sensor.h
index b180e36a73..f54d4e8799 100755
--- a/components/drivers/sensors/sensor.h
+++ b/components/drivers/sensors/sensor.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -169,7 +169,7 @@ struct rt_sensor_device
     const struct rt_sensor_ops  *ops;       /* The sensor ops */
 
     struct rt_sensor_module     *module;    /* The sensor module */
-    
+
     rt_err_t (*irq_handle)(rt_sensor_t sensor);             /* Called when an interrupt is generated, registered by the driver */
 };
 
diff --git a/components/drivers/sensors/sensor_cmd.c b/components/drivers/sensors/sensor_cmd.c
index cbf7d233c6..5c2d22640c 100755
--- a/components/drivers/sensors/sensor_cmd.c
+++ b/components/drivers/sensors/sensor_cmd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -92,7 +92,7 @@ static void sensor_fifo_rx_entry(void *parameter)
     struct rt_sensor_data *data = RT_NULL;
     struct rt_sensor_info info;
     rt_size_t res, i;
-    
+
     rt_device_control(dev, RT_SENSOR_CTRL_GET_INFO, &info);
 
     data = (struct rt_sensor_data *)rt_malloc(sizeof(struct rt_sensor_data) * info.fifo_max);
@@ -126,7 +126,7 @@ static void sensor_fifo(int argc, char **argv)
         return;
     }
     sensor = (rt_sensor_t)dev;
-    
+
     if (rt_device_open(dev, RT_DEVICE_FLAG_FIFO_RX) != RT_EOK)
     {
         LOG_E("open device failed!");
diff --git a/components/drivers/serial/serial.c b/components/drivers/serial/serial.c
index be68f578eb..d9a20f05a0 100644
--- a/components/drivers/serial/serial.c
+++ b/components/drivers/serial/serial.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -460,7 +460,7 @@ static void rt_dma_recv_update_put_index(struct rt_serial_device *serial, rt_siz
             rx_fifo->is_full = RT_TRUE;
         }
     }
-    
+
     if(rx_fifo->is_full == RT_TRUE)
     {
         _serial_check_buffer_size();
@@ -615,7 +615,7 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag)
 
     /* initialize the Rx/Tx structure according to open flag */
     if (serial->serial_rx == RT_NULL)
-    { 
+    {
         if (oflag & RT_DEVICE_FLAG_INT_RX)
         {
             struct rt_serial_rx_fifo* rx_fifo;
@@ -634,7 +634,7 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag)
             /* configure low level device */
             serial->ops->control(serial, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_RX);
         }
-#ifdef RT_SERIAL_USING_DMA        
+#ifdef RT_SERIAL_USING_DMA
         else if (oflag & RT_DEVICE_FLAG_DMA_RX)
         {
             if (serial->config.bufsz == 0) {
@@ -675,7 +675,7 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag)
 #ifdef RT_SERIAL_USING_DMA
         else if (oflag & RT_DEVICE_FLAG_DMA_RX)
             dev->open_flag |= RT_DEVICE_FLAG_DMA_RX;
-#endif /* RT_SERIAL_USING_DMA */  
+#endif /* RT_SERIAL_USING_DMA */
     }
 
     if (serial->serial_tx == RT_NULL)
@@ -723,7 +723,7 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag)
 #ifdef RT_SERIAL_USING_DMA
         else if (oflag & RT_DEVICE_FLAG_DMA_TX)
             dev->open_flag |= RT_DEVICE_FLAG_DMA_TX;
-#endif /* RT_SERIAL_USING_DMA */    
+#endif /* RT_SERIAL_USING_DMA */
     }
 
     /* set stream flag */
@@ -784,7 +784,7 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
         serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void *) RT_DEVICE_FLAG_DMA_RX);
     }
 #endif /* RT_SERIAL_USING_DMA */
-    
+
     if (dev->open_flag & RT_DEVICE_FLAG_INT_TX)
     {
         struct rt_serial_tx_fifo* tx_fifo;
@@ -845,7 +845,7 @@ static rt_size_t rt_serial_read(struct rt_device *dev,
     {
         return _serial_dma_rx(serial, (rt_uint8_t *)buffer, size);
     }
-#endif /* RT_SERIAL_USING_DMA */    
+#endif /* RT_SERIAL_USING_DMA */
 
     return _serial_poll_rx(serial, (rt_uint8_t *)buffer, size);
 }
@@ -866,7 +866,7 @@ static rt_size_t rt_serial_write(struct rt_device *dev,
     {
         return _serial_int_tx(serial, (const rt_uint8_t *)buffer, size);
     }
-#ifdef RT_SERIAL_USING_DMA    
+#ifdef RT_SERIAL_USING_DMA
     else if (dev->open_flag & RT_DEVICE_FLAG_DMA_TX)
     {
         return _serial_dma_tx(serial, (const rt_uint8_t *)buffer, size);
@@ -1152,7 +1152,7 @@ static rt_err_t rt_serial_control(struct rt_device *dev,
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops serial_ops = 
+const static struct rt_device_ops serial_ops =
 {
     rt_serial_init,
     rt_serial_open,
diff --git a/components/drivers/spi/enc28j60.c b/components/drivers/spi/enc28j60.c
index a8bfe3a159..f99719245b 100644
--- a/components/drivers/spi/enc28j60.c
+++ b/components/drivers/spi/enc28j60.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -747,7 +747,7 @@ static struct pbuf *enc28j60_rx(rt_device_t dev)
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops enc28j60_ops = 
+const static struct rt_device_ops enc28j60_ops =
 {
     enc28j60_init,
     enc28j60_open,
diff --git a/components/drivers/spi/enc28j60.h b/components/drivers/spi/enc28j60.h
index adff774748..471b71ec2d 100644
--- a/components/drivers/spi/enc28j60.h
+++ b/components/drivers/spi/enc28j60.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/spi/qspi_core.c b/components/drivers/spi/qspi_core.c
index c9ff6a9637..ca2cba0aba 100644
--- a/components/drivers/spi/qspi_core.c
+++ b/components/drivers/spi/qspi_core.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -14,7 +14,7 @@ rt_err_t rt_qspi_configure(struct rt_qspi_device *device, struct rt_qspi_configu
 {
     RT_ASSERT(device != RT_NULL);
     RT_ASSERT(cfg != RT_NULL);
-    
+
     struct rt_qspi_device *qspi_device = (struct rt_qspi_device *)device;
     rt_err_t result = RT_EOK;
 
@@ -35,14 +35,14 @@ rt_err_t rt_qspi_configure(struct rt_qspi_device *device, struct rt_qspi_configu
 rt_err_t rt_qspi_bus_register(struct rt_spi_bus *bus, const char *name, const struct rt_spi_ops *ops)
 {
     rt_err_t result = RT_EOK;
-    
+
     result = rt_spi_bus_register(bus, name, ops);
     if(result == RT_EOK)
     {
         /* set SPI bus to qspi modes */
         bus->mode = RT_SPI_BUS_MODE_QSPI;
     }
-    
+
     return result;
 }
 
@@ -243,7 +243,7 @@ rt_err_t rt_qspi_send(struct rt_qspi_device *device, const void *send_buf, rt_si
         message.qspi_data_lines = 0;
 
     }
-    
+
     /* set send buf and send size */
     message.parent.send_buf = ptr + count;
     message.parent.recv_buf = RT_NULL;
diff --git a/components/drivers/spi/sfud/inc/sfud_def.h b/components/drivers/spi/sfud/inc/sfud_def.h
index fe7876618b..c06f9b1295 100644
--- a/components/drivers/spi/sfud/inc/sfud_def.h
+++ b/components/drivers/spi/sfud/inc/sfud_def.h
@@ -118,11 +118,11 @@ if (!(EXPR))                                                                   \
 #define SFUD_CMD_READ_DATA                             0x03
 #endif
 
-#ifndef SFUD_CMD_DUAL_OUTPUT_READ_DATA 
+#ifndef SFUD_CMD_DUAL_OUTPUT_READ_DATA
 #define SFUD_CMD_DUAL_OUTPUT_READ_DATA                 0x3B
 #endif
 
-#ifndef SFUD_CMD_DUAL_IO_READ_DATA 
+#ifndef SFUD_CMD_DUAL_IO_READ_DATA
 #define SFUD_CMD_DUAL_IO_READ_DATA                     0xBB
 #endif
 
diff --git a/components/drivers/spi/sfud/src/sfud_sfdp.c b/components/drivers/spi/sfud/src/sfud_sfdp.c
index 0c81e073e6..5d95fa2b79 100644
--- a/components/drivers/spi/sfud/src/sfud_sfdp.c
+++ b/components/drivers/spi/sfud/src/sfud_sfdp.c
@@ -223,7 +223,7 @@ static bool read_basic_table(sfud_flash *flash, sfdp_para_header *basic_header)
         return false;
     }
     /* get write granularity */
-    //TODO ĿǰΪ 1.0 ���ṩ�ķ�ʽ������֧�� V1.5 �����ϵķ�ʽ��ȡ page size
+    //TODO 目前为 1.0 所提供的方式，后期支持 V1.5 及以上的方式读取 page size
     switch ((table[0] & (0x01 << 2)) >> 2) {
     case 0:
         sfdp->write_gran = 1;
diff --git a/components/drivers/spi/spi_core.c b/components/drivers/spi/spi_core.c
index 64b0d2e496..7b6b7a0763 100644
--- a/components/drivers/spi/spi_core.c
+++ b/components/drivers/spi/spi_core.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/spi/spi_dev.c b/components/drivers/spi/spi_dev.c
index e334e7aeb5..264f5d1856 100644
--- a/components/drivers/spi/spi_dev.c
+++ b/components/drivers/spi/spi_dev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -48,7 +48,7 @@ static rt_err_t _spi_bus_device_control(rt_device_t dev,
     {
     case 0: /* set device */
         break;
-    case 1: 
+    case 1:
         break;
     }
 
@@ -56,7 +56,7 @@ static rt_err_t _spi_bus_device_control(rt_device_t dev,
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops spi_bus_ops = 
+const static struct rt_device_ops spi_bus_ops =
 {
     RT_NULL,
     RT_NULL,
@@ -129,7 +129,7 @@ static rt_err_t _spidev_device_control(rt_device_t dev,
     {
     case 0: /* set device */
         break;
-    case 1: 
+    case 1:
         break;
     }
 
@@ -137,7 +137,7 @@ static rt_err_t _spidev_device_control(rt_device_t dev,
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops spi_device_ops = 
+const static struct rt_device_ops spi_device_ops =
 {
     RT_NULL,
     RT_NULL,
diff --git a/components/drivers/spi/spi_flash.h b/components/drivers/spi/spi_flash.h
index 82b1ab2ecd..9083a40a1c 100644
--- a/components/drivers/spi/spi_flash.h
+++ b/components/drivers/spi/spi_flash.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -28,10 +28,10 @@ typedef struct spi_flash_device *rt_spi_flash_device_t;
 #ifdef RT_USING_MTD_NOR
 struct spi_flash_mtd
 {
-    struct rt_mtd_nor_device 			mtd_device;
-    struct rt_spi_device *     			rt_spi_device;
-    struct rt_mutex            			lock;
-    void *                     			user_data;
+    struct rt_mtd_nor_device            mtd_device;
+    struct rt_spi_device *              rt_spi_device;
+    struct rt_mutex                     lock;
+    void *                              user_data;
 };
 #endif
 
diff --git a/components/drivers/spi/spi_flash_sfud.c b/components/drivers/spi/spi_flash_sfud.c
index 2333c9ccb3..ba673edf62 100644
--- a/components/drivers/spi/spi_flash_sfud.c
+++ b/components/drivers/spi/spi_flash_sfud.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/spi/spi_flash_sfud.h b/components/drivers/spi/spi_flash_sfud.h
index 932b7f879c..0d5a751d0c 100644
--- a/components/drivers/spi/spi_flash_sfud.h
+++ b/components/drivers/spi/spi_flash_sfud.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/spi/spi_msd.c b/components/drivers/spi/spi_msd.c
index 191933e421..875ae3c486 100644
--- a/components/drivers/spi/spi_msd.c
+++ b/components/drivers/spi/spi_msd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -435,7 +435,7 @@ static rt_err_t _write_block(struct rt_spi_device *device, const void *buffer, u
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops msd_ops = 
+const static struct rt_device_ops msd_ops =
 {
     rt_msd_init,
     rt_msd_open,
@@ -445,7 +445,7 @@ const static struct rt_device_ops msd_ops =
     rt_msd_control
 };
 
-const static struct rt_device_ops msd_sdhc_ops = 
+const static struct rt_device_ops msd_sdhc_ops =
 {
     rt_msd_init,
     rt_msd_open,
diff --git a/components/drivers/spi/spi_msd.h b/components/drivers/spi/spi_msd.h
index 6370170923..e9febca781 100644
--- a/components/drivers/spi/spi_msd.h
+++ b/components/drivers/spi/spi_msd.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -93,12 +93,12 @@
  */
 typedef enum
 {
-	MSD_CARD_TYPE_UNKNOWN = 0,                      /**< unknown */
-	MSD_CARD_TYPE_MMC,                              /**< MultiMedia Card */
-	MSD_CARD_TYPE_SD_V1_X,                          /**< Ver 1.X  Standard Capacity SD Memory Card */
-	MSD_CARD_TYPE_SD_V2_X,                          /**< Ver 2.00 or later Standard Capacity SD Memory Card */
-	MSD_CARD_TYPE_SD_SDHC,                          /**< High Capacity SD Memory Card */
-	MSD_CARD_TYPE_SD_SDXC,                          /**< later Extended Capacity SD Memory Card */
+    MSD_CARD_TYPE_UNKNOWN = 0,                      /**< unknown */
+    MSD_CARD_TYPE_MMC,                              /**< MultiMedia Card */
+    MSD_CARD_TYPE_SD_V1_X,                          /**< Ver 1.X  Standard Capacity SD Memory Card */
+    MSD_CARD_TYPE_SD_V2_X,                          /**< Ver 2.00 or later Standard Capacity SD Memory Card */
+    MSD_CARD_TYPE_SD_SDHC,                          /**< High Capacity SD Memory Card */
+    MSD_CARD_TYPE_SD_SDXC,                          /**< later Extended Capacity SD Memory Card */
 }msd_card_type;
 
 typedef enum
diff --git a/components/drivers/spi/spi_wifi_rw009.c b/components/drivers/spi/spi_wifi_rw009.c
index 4ddd18ca12..84da212077 100644
--- a/components/drivers/spi/spi_wifi_rw009.c
+++ b/components/drivers/spi/spi_wifi_rw009.c
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/drivers/spi/spi_wifi_rw009.h b/components/drivers/spi/spi_wifi_rw009.h
index 049b0a8486..a0d8ec437d 100644
--- a/components/drivers/spi/spi_wifi_rw009.h
+++ b/components/drivers/spi/spi_wifi_rw009.h
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/drivers/src/completion.c b/components/drivers/src/completion.c
index 9e461e49ce..b91ae3d6dc 100644
--- a/components/drivers/src/completion.c
+++ b/components/drivers/src/completion.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/src/dataqueue.c b/components/drivers/src/dataqueue.c
index 1651417bb9..f32efa1849 100644
--- a/components/drivers/src/dataqueue.c
+++ b/components/drivers/src/dataqueue.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -62,7 +62,7 @@ rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
     rt_ubase_t  level;
     rt_thread_t thread;
     rt_err_t    result;
-    
+
     RT_ASSERT(queue != RT_NULL);
     RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
 
@@ -85,7 +85,7 @@ rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
 
         /* reset thread error number */
         thread->error = RT_EOK;
-        
+
         /* suspend thread on the push list */
         rt_thread_suspend(thread);
         rt_list_insert_before(&(queue->suspended_push_list), &(thread->tlist));
@@ -155,13 +155,13 @@ RTM_EXPORT(rt_data_queue_push);
 
 rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
                            const void** data_ptr,
-                           rt_size_t *size, 
+                           rt_size_t *size,
                            rt_int32_t timeout)
 {
     rt_ubase_t  level;
     rt_thread_t thread;
     rt_err_t    result;
-    
+
     RT_ASSERT(queue != RT_NULL);
     RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
     RT_ASSERT(data_ptr != RT_NULL);
@@ -185,7 +185,7 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
 
         /* reset thread error number */
         thread->error = RT_EOK;
-        
+
         /* suspend thread on the pop list */
         rt_thread_suspend(thread);
         rt_list_insert_before(&(queue->suspended_pop_list), &(thread->tlist));
@@ -269,11 +269,11 @@ rt_err_t rt_data_queue_peek(struct rt_data_queue *queue,
                             rt_size_t *size)
 {
     rt_ubase_t  level;
-    
+
     RT_ASSERT(queue != RT_NULL);
     RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
 
-    if (queue->is_empty) 
+    if (queue->is_empty)
     {
         return -RT_EEMPTY;
     }
@@ -293,7 +293,7 @@ void rt_data_queue_reset(struct rt_data_queue *queue)
 {
     rt_ubase_t  level;
     struct rt_thread *thread;
-    
+
     RT_ASSERT(queue != RT_NULL);
     RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
 
@@ -303,9 +303,9 @@ void rt_data_queue_reset(struct rt_data_queue *queue)
     queue->put_index = 0;
     queue->is_empty = 1;
     queue->is_full = 0;
-    
+
     rt_hw_interrupt_enable(level);
-    
+
     rt_enter_critical();
     /* wakeup all suspend threads */
 
@@ -375,7 +375,7 @@ rt_err_t rt_data_queue_deinit(struct rt_data_queue *queue)
     level = rt_hw_interrupt_disable();
     queue->magic = 0;
     rt_hw_interrupt_enable(level);
-    
+
     rt_free(queue->queue);
 
     return RT_EOK;
@@ -386,7 +386,7 @@ rt_uint16_t rt_data_queue_len(struct rt_data_queue *queue)
 {
     rt_ubase_t level;
     rt_int16_t len;
-    
+
     RT_ASSERT(queue != RT_NULL);
     RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
 
@@ -405,7 +405,7 @@ rt_uint16_t rt_data_queue_len(struct rt_data_queue *queue)
     {
         len = queue->size + queue->put_index - queue->get_index;
     }
-    
+
     rt_hw_interrupt_enable(level);
 
     return len;
diff --git a/components/drivers/src/pipe.c b/components/drivers/src/pipe.c
index bd392cba2b..10b880ff7a 100644
--- a/components/drivers/src/pipe.c
+++ b/components/drivers/src/pipe.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -330,7 +330,7 @@ rt_err_t  rt_pipe_open (rt_device_t device, rt_uint16_t oflag)
         ret = -RT_EINVAL;
         goto __exit;
     }
-    
+
     rt_mutex_take(&(pipe->lock), RT_WAITING_FOREVER);
 
     if (pipe->fifo == RT_NULL)
@@ -428,7 +428,7 @@ rt_err_t  rt_pipe_control(rt_device_t dev, int cmd, void *args)
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops pipe_ops = 
+const static struct rt_device_ops pipe_ops =
 {
     RT_NULL,
     rt_pipe_open,
@@ -507,7 +507,7 @@ int rt_pipe_delete(const char *name)
             rt_device_unregister(device);
 
             /* close fifo ringbuffer */
-            if (pipe->fifo) 
+            if (pipe->fifo)
             {
                 rt_ringbuffer_destroy(pipe->fifo);
                 pipe->fifo = RT_NULL;
@@ -564,7 +564,7 @@ int pipe(int fildes[2])
 int mkfifo(const char *path, mode_t mode)
 {
     rt_pipe_t *pipe;
-    
+
     pipe = rt_pipe_create(path, PIPE_BUFSZ);
     if (pipe == RT_NULL)
     {
diff --git a/components/drivers/src/ringblk_buf.c b/components/drivers/src/ringblk_buf.c
index 7d83149c5e..c9631b9d4a 100644
--- a/components/drivers/src/ringblk_buf.c
+++ b/components/drivers/src/ringblk_buf.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/src/ringbuffer.c b/components/drivers/src/ringbuffer.c
index 88afd19506..29de20b087 100644
--- a/components/drivers/src/ringbuffer.c
+++ b/components/drivers/src/ringbuffer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -320,8 +320,8 @@ rt_size_t rt_ringbuffer_getchar(struct rt_ringbuffer *rb, rt_uint8_t *ch)
 }
 RTM_EXPORT(rt_ringbuffer_getchar);
 
-/** 
- * get the size of data in rb 
+/**
+ * get the size of data in rb
  */
 rt_size_t rt_ringbuffer_data_len(struct rt_ringbuffer *rb)
 {
@@ -341,8 +341,8 @@ rt_size_t rt_ringbuffer_data_len(struct rt_ringbuffer *rb)
 }
 RTM_EXPORT(rt_ringbuffer_data_len);
 
-/** 
- * empty the rb 
+/**
+ * empty the rb
  */
 void rt_ringbuffer_reset(struct rt_ringbuffer *rb)
 {
@@ -362,7 +362,7 @@ struct rt_ringbuffer* rt_ringbuffer_create(rt_uint16_t size)
     struct rt_ringbuffer *rb;
     rt_uint8_t *pool;
 
-	RT_ASSERT(size > 0);
+    RT_ASSERT(size > 0);
 
     size = RT_ALIGN_DOWN(size, RT_ALIGN_SIZE);
 
diff --git a/components/drivers/src/waitqueue.c b/components/drivers/src/waitqueue.c
index 4f7cd32989..7fe75a51ba 100644
--- a/components/drivers/src/waitqueue.c
+++ b/components/drivers/src/waitqueue.c
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
- * 2018/06/26     Bernard      Fix the wait queue issue when wakeup a soon 
+ * 2018/06/26     Bernard      Fix the wait queue issue when wakeup a soon
  *                             to blocked thread.
  */
 
diff --git a/components/drivers/src/workqueue.c b/components/drivers/src/workqueue.c
index 7aea647703..f195dad927 100644
--- a/components/drivers/src/workqueue.c
+++ b/components/drivers/src/workqueue.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/touch/touch.c b/components/drivers/touch/touch.c
index e9595e9f8f..abe2c0fe24 100644
--- a/components/drivers/touch/touch.c
+++ b/components/drivers/touch/touch.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/touch/touch.h b/components/drivers/touch/touch.h
index be12c24206..3d2e885e13 100644
--- a/components/drivers/touch/touch.h
+++ b/components/drivers/touch/touch.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/usb/usbdevice/class/audio_mic.c b/components/drivers/usb/usbdevice/class/audio_mic.c
index 23ade2d9b6..760c055d10 100644
--- a/components/drivers/usb/usbdevice/class/audio_mic.c
+++ b/components/drivers/usb/usbdevice/class/audio_mic.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/usb/usbdevice/class/audio_speaker.c b/components/drivers/usb/usbdevice/class/audio_speaker.c
index e9a3ffaf40..c8bbb9cb5e 100644
--- a/components/drivers/usb/usbdevice/class/audio_speaker.c
+++ b/components/drivers/usb/usbdevice/class/audio_speaker.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/usb/usbdevice/class/cdc.h b/components/drivers/usb/usbdevice/class/cdc.h
index 4e07f16266..a4616a956b 100644
--- a/components/drivers/usb/usbdevice/class/cdc.h
+++ b/components/drivers/usb/usbdevice/class/cdc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -8,7 +8,7 @@
  * 2012-10-03     Yi Qiu       first version
  * 2012-12-12     heyuanjie87  add CDC endpoints collection
  */
- 
+
 #ifndef  __CDC_H__
 #define  __CDC_H__
 
@@ -96,7 +96,7 @@ struct ucdc_header_descriptor
     rt_uint8_t length;
     rt_uint8_t type;
     rt_uint8_t subtype;
-    rt_uint16_t bcd;        
+    rt_uint16_t bcd;
 };
 typedef struct ucdc_header_descriptor* ucdc_hdr_desc_t;
 
@@ -114,7 +114,7 @@ struct ucdc_call_mgmt_descriptor
     rt_uint8_t length;
     rt_uint8_t type;
     rt_uint8_t subtype;
-    rt_uint8_t capabilties;    
+    rt_uint8_t capabilties;
     rt_uint8_t data_interface;
 };
 typedef struct ucdc_call_mgmt_descriptor* ucdc_call_mgmt_desc_t;
@@ -136,9 +136,9 @@ struct ucdc_comm_descriptor
 #endif
     struct uinterface_descriptor intf_desc;
     struct ucdc_header_descriptor hdr_desc;
-    struct ucdc_call_mgmt_descriptor call_mgmt_desc;    
-    struct ucdc_acm_descriptor acm_desc;    
-    struct ucdc_union_descriptor union_desc;    
+    struct ucdc_call_mgmt_descriptor call_mgmt_desc;
+    struct ucdc_acm_descriptor acm_desc;
+    struct ucdc_union_descriptor union_desc;
     struct uendpoint_descriptor ep_desc;
 };
 typedef struct ucdc_comm_descriptor* ucdc_comm_desc_t;
@@ -170,7 +170,7 @@ typedef struct ucdc_eth_descriptor* ucdc_eth_desc_t;
 struct ucdc_data_descriptor
 {
     struct uinterface_descriptor intf_desc;
-    struct uendpoint_descriptor ep_out_desc;        
+    struct uendpoint_descriptor ep_out_desc;
     struct uendpoint_descriptor ep_in_desc;
 };
 typedef struct ucdc_data_descriptor* ucdc_data_desc_t;
diff --git a/components/drivers/usb/usbdevice/class/cdc_vcom.c b/components/drivers/usb/usbdevice/class/cdc_vcom.c
index f9ea466bd5..996a12c308 100644
--- a/components/drivers/usb/usbdevice/class/cdc_vcom.c
+++ b/components/drivers/usb/usbdevice/class/cdc_vcom.c
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  * 2012-10-02     Yi Qiu       first version
- * 2012-12-12     heyuanjie87  change endpoints and function handler 
+ * 2012-12-12     heyuanjie87  change endpoints and function handler
  * 2013-06-25     heyuanjie87  remove SOF mechinism
  * 2013-07-20     Yi Qiu       do more test
  * 2016-02-01     Urey         Fix some error
@@ -146,23 +146,23 @@ const static struct ucdc_comm_descriptor _comm_desc =
         USB_DESC_LENGTH_INTERFACE,
         USB_DESC_TYPE_INTERFACE,
         USB_DYNAMIC,
-        0x00,   
+        0x00,
         0x01,
         USB_CDC_CLASS_COMM,
         USB_CDC_SUBCLASS_ACM,
         USB_CDC_PROTOCOL_V25TER,
         0x00,
     },
-    /* Header Functional Descriptor */   
+    /* Header Functional Descriptor */
     {
-        0x05,                              
+        0x05,
         USB_CDC_CS_INTERFACE,
         USB_CDC_SCS_HEADER,
         0x0110,
     },
-    /* Call Management Functional Descriptor */   
+    /* Call Management Functional Descriptor */
     {
-        0x05,            
+        0x05,
         USB_CDC_CS_INTERFACE,
         USB_CDC_SCS_CALL_MGMT,
         0x00,
@@ -175,7 +175,7 @@ const static struct ucdc_comm_descriptor _comm_desc =
         USB_CDC_SCS_ACM,
         0x02,
     },
-    /* Union Functional Descriptor */   
+    /* Union Functional Descriptor */
     {
         0x05,
         USB_CDC_CS_INTERFACE,
@@ -183,7 +183,7 @@ const static struct ucdc_comm_descriptor _comm_desc =
         USB_DYNAMIC,
         USB_DYNAMIC,
     },
-    /* Endpoint Descriptor */    
+    /* Endpoint Descriptor */
     {
         USB_DESC_LENGTH_ENDPOINT,
         USB_DESC_TYPE_ENDPOINT,
@@ -204,27 +204,27 @@ const static struct ucdc_data_descriptor _data_desc =
         USB_DESC_TYPE_INTERFACE,
         USB_DYNAMIC,
         0x00,
-        0x02,         
+        0x02,
         USB_CDC_CLASS_DATA,
-        0x00,                             
-        0x00,                             
-        0x00,              
+        0x00,
+        0x00,
+        0x00,
     },
     /* endpoint, bulk out */
     {
-        USB_DESC_LENGTH_ENDPOINT,     
+        USB_DESC_LENGTH_ENDPOINT,
         USB_DESC_TYPE_ENDPOINT,
         USB_DYNAMIC | USB_DIR_OUT,
-        USB_EP_ATTR_BULK,      
+        USB_EP_ATTR_BULK,
         USB_CDC_BUFSIZE,
-        0x00,          
+        0x00,
     },
     /* endpoint, bulk in */
     {
         USB_DESC_LENGTH_ENDPOINT,
         USB_DESC_TYPE_ENDPOINT,
         USB_DYNAMIC | USB_DIR_IN,
-        USB_EP_ATTR_BULK,      
+        USB_EP_ATTR_BULK,
         USB_CDC_BUFSIZE,
         0x00,
     },
@@ -253,11 +253,11 @@ static void _vcom_reset_state(ufunction_t func)
 {
     struct vcom* data;
     int lvl;
-    
+
     RT_ASSERT(func != RT_NULL)
 
     data = (struct vcom*)func->user_data;
-    
+
     lvl = rt_hw_interrupt_disable();
     data->connected = RT_FALSE;
     data->in_sending = RT_FALSE;
@@ -299,9 +299,9 @@ static rt_err_t _ep_in_handler(ufunction_t func, rt_size_t size)
 
         return RT_EOK;
     }
-    
+
     rt_completion_done(&data->wait);
-    
+
     return RT_EOK;
 }
 
@@ -396,7 +396,7 @@ static rt_err_t _cdc_set_line_coding_callback(udevice_t device, rt_size_t size)
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_cdc_set_line_coding_callback\n"));
 
     dcd_ep0_send_status(device->dcd);
-    
+
     return RT_EOK;
 }
 
@@ -438,7 +438,7 @@ static rt_err_t _interface_handler(ufunction_t func, ureq_t setup)
     RT_ASSERT(setup != RT_NULL);
 
     data = (struct vcom*)func->user_data;
-    
+
     switch(setup->bRequest)
     {
     case CDC_SEND_ENCAPSULATED_COMMAND:
@@ -488,17 +488,17 @@ static rt_err_t _function_enable(ufunction_t func)
     RT_DEBUG_LOG(RT_DEBUG_USB, ("cdc function enable\n"));
 
     _vcom_reset_state(func);
-    
+
     data = (struct vcom*)func->user_data;
     data->ep_out->buffer = rt_malloc(CDC_RX_BUFSIZE);
     RT_ASSERT(data->ep_out->buffer != RT_NULL);
 
     data->ep_out->request.buffer = data->ep_out->buffer;
     data->ep_out->request.size = EP_MAXPACKET(data->ep_out);
-    
+
     data->ep_out->request.req_type = UIO_REQUEST_READ_BEST;
     rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);
-    
+
     return RT_EOK;
 }
 
@@ -523,7 +523,7 @@ static rt_err_t _function_disable(ufunction_t func)
     if(data->ep_out->buffer != RT_NULL)
     {
         rt_free(data->ep_out->buffer);
-        data->ep_out->buffer = RT_NULL;        
+        data->ep_out->buffer = RT_NULL;
     }
 
     return RT_EOK;
@@ -544,7 +544,7 @@ static struct ufunction_ops ops =
  *
  * @return RT_EOK on successful.
  */
-static rt_err_t _cdc_descriptor_config(ucdc_comm_desc_t comm, 
+static rt_err_t _cdc_descriptor_config(ucdc_comm_desc_t comm,
     rt_uint8_t cintf_nr, ucdc_data_desc_t data, rt_uint8_t dintf_nr)
 {
     comm->call_mgmt_desc.data_interface = dintf_nr;
@@ -584,19 +584,19 @@ ufunction_t rt_usbd_function_cdc_create(udevice_t device)
     }
     /* set usb device string description */
     rt_usbd_device_set_string(device, _ustring);
-    
+
     /* create a cdc function */
     func = rt_usbd_function_new(device, &dev_desc, &ops);
-    
+
     /* support HS */
     rt_usbd_device_set_qualifier(device, &dev_qualifier);
-    
+
     /* allocate memory for cdc vcom data */
     data = (struct vcom*)rt_malloc(sizeof(struct vcom));
     RT_ASSERT(data != RT_NULL);
     rt_memset(data, 0, sizeof(struct vcom));
     func->user_data = (void*)data;
-    
+
     /* initilize vcom */
     rt_usb_vcom_init(func);
 
@@ -646,7 +646,7 @@ ufunction_t rt_usbd_function_cdc_create(udevice_t device)
 
     /* add the cdc data interface to cdc function */
     rt_usbd_function_add_interface(func, intf_data);
-    
+
     return func;
 }
 
@@ -682,7 +682,7 @@ static int _vcom_getc(struct rt_serial_device *serial)
     rt_uint32_t level;
     struct ufunction *func;
     struct vcom *data;
-    
+
     func = (struct ufunction*)serial->parent.user_data;
     data = (struct vcom*)func->user_data;
 
@@ -918,7 +918,7 @@ static void rt_usb_vcom_init(struct ufunction *func)
     rt_err_t result = RT_EOK;
     struct serial_configure config;
     struct vcom *data = (struct vcom*)func->user_data;
-    
+
     /* initialize ring buffer */
     rt_ringbuffer_init(&data->rx_ringbuffer, data->rx_rbp, CDC_RX_BUFSIZE);
     rt_ringbuffer_init(&data->tx_ringbuffer, data->tx_rbp, CDC_TX_BUFSIZE);
@@ -952,9 +952,9 @@ static void rt_usb_vcom_init(struct ufunction *func)
                    vcom_thread_stack, VCOM_TASK_STK_SIZE,
                    16, 20);
     result = rt_thread_startup(&vcom_thread);
-    RT_ASSERT(result == RT_EOK);       
+    RT_ASSERT(result == RT_EOK);
 }
-struct udclass vcom_class = 
+struct udclass vcom_class =
 {
     .rt_usbd_function_create = rt_usbd_function_cdc_create
 };
diff --git a/components/drivers/usb/usbdevice/class/ecm.c b/components/drivers/usb/usbdevice/class/ecm.c
index 36557dad74..1550f8e1e2 100644
--- a/components/drivers/usb/usbdevice/class/ecm.c
+++ b/components/drivers/usb/usbdevice/class/ecm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -44,9 +44,9 @@ struct rt_ecm_eth
     ALIGN(4)
     char                    rx_buffer[USB_ETH_MTU];
     char                    tx_buffer[USB_ETH_MTU];
-    
+
     struct rt_semaphore     tx_buffer_free;
-    
+
 };
 typedef struct rt_ecm_eth * rt_ecm_eth_t;
 
@@ -207,7 +207,7 @@ static rt_err_t _cdc_send_notifi(ufunction_t func,ucdc_notification_code_t notif
     _notifi.bNotificatinCode = notifi;
     _notifi.wValue = wValue;
     _notifi.wLength = wLength;
-    
+
     eps->ep_cmd->request.buffer = (void *)&_notifi;
     eps->ep_cmd->request.size = 8;
     eps->ep_cmd->request.req_type = UIO_REQUEST_WRITE;
@@ -220,7 +220,7 @@ static rt_err_t _ecm_set_eth_packet_filter(ufunction_t func, ureq_t setup)
 {
     rt_ecm_eth_t _ecm_eth = (rt_ecm_eth_t)func->user_data;
     dcd_ep0_send_status(func->device->dcd);
-    
+
     /* send link up. */
     eth_device_linkchange(&_ecm_eth->parent, RT_TRUE);
     _cdc_send_notifi(func, UCDC_NOTIFI_NETWORK_CONNECTION, 1, 0);
@@ -292,7 +292,7 @@ static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
         ecm_device->rx_size = ecm_device->rx_offset;
         ecm_device->rx_offset = 0;
         eth_device_ready(&ecm_device->parent);
-        
+
     }else
     {
         ecm_device->eps.ep_out->request.buffer = ecm_device->eps.ep_out->buffer;
@@ -427,7 +427,7 @@ rt_err_t rt_ecm_eth_tx(rt_device_t dev, struct pbuf* p)
         rt_sem_release(&ecm_eth_dev->tx_buffer_free);
         return result;
     }
-    
+
     pbuffer = (char *)&ecm_eth_dev->tx_buffer;
     for (q = p; q != NULL; q = q->next)
     {
@@ -480,7 +480,7 @@ static rt_err_t _function_enable(ufunction_t func)
     /* reset eth rx tx */
     ecm_device->rx_size = 0;
     ecm_device->rx_offset = 0;
-    
+
     eps->ep_out->request.buffer = (void *)eps->ep_out->buffer;
     eps->ep_out->request.size = EP_MAXPACKET(eps->ep_out);
     eps->ep_out->request.req_type = UIO_REQUEST_READ_BEST;
@@ -555,7 +555,7 @@ ufunction_t rt_usbd_function_ecm_create(udevice_t device)
     ualtsetting_t comm_setting, data_setting;
     ucdc_data_desc_t data_desc;
     ucdc_eth_desc_t comm_desc;
-    
+
     /* parameter check */
     RT_ASSERT(device != RT_NULL);
 
@@ -600,7 +600,7 @@ ufunction_t rt_usbd_function_ecm_create(udevice_t device)
     rt_usbd_set_altsetting(intf_comm, 0);
     /* add the communication interface to the cdc class */
     rt_usbd_function_add_interface(cdc, intf_comm);
-    
+
     /* create a bulk in and a bulk out endpoint */
     data_desc = (ucdc_data_desc_t)data_setting->desc;
     eps->ep_out = rt_usbd_endpoint_new(&data_desc->ep_out_desc, _ep_out_handler);
@@ -648,14 +648,14 @@ ufunction_t rt_usbd_function_ecm_create(udevice_t device)
     _ecm_eth->parent.eth_tx     = rt_ecm_eth_tx;
     /* register eth device */
     eth_device_init(&_ecm_eth->parent, "u0");
-    
+
     /* send link up. */
     eth_device_linkchange(&_ecm_eth->parent, RT_FALSE);
-   
+
     return cdc;
 }
 
-struct udclass ecm_class = 
+struct udclass ecm_class =
 {
     .rt_usbd_function_create = rt_usbd_function_ecm_create
 };
diff --git a/components/drivers/usb/usbdevice/class/hid.c b/components/drivers/usb/usbdevice/class/hid.c
index 52e50296a4..5023be46eb 100644
--- a/components/drivers/usb/usbdevice/class/hid.c
+++ b/components/drivers/usb/usbdevice/class/hid.c
@@ -1,9 +1,9 @@
 /*
  * File      : hid.c
- * COPYRIGHT (C) 2008 - 2018, RT-Thread Development Team
+ * COPYRIGHT (C) 2006 - 2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- * 
+ *
  * Change Logs:
  * Date           Author       Notes
  * 2017-03-13     Urey         the first version
@@ -621,12 +621,12 @@ static void hid_thread_entry(void* parameter)
     struct hid_report report;
     struct hid_s *hiddev;
     hiddev = (struct hid_s *)parameter;
-	while(1)
-	{
-		if(rt_mq_recv(&hiddev->hid_mq, &report, sizeof(report),RT_WAITING_FOREVER) != RT_EOK )
+    while(1)
+    {
+        if(rt_mq_recv(&hiddev->hid_mq, &report, sizeof(report),RT_WAITING_FOREVER) != RT_EOK )
             continue;
-		HID_Report_Received(&report);
-	}
+        HID_Report_Received(&report);
+    }
 }
 
 #ifdef RT_USING_DEVICE_OPS
@@ -658,7 +658,7 @@ static void rt_usb_hid_init(struct ufunction *func)
     rt_device_register(&hiddev->parent, "hidd", RT_DEVICE_FLAG_RDWR);
     rt_mq_init(&hiddev->hid_mq, "hiddmq", hid_mq_pool, sizeof(struct hid_report),
                             sizeof(hid_mq_pool), RT_IPC_FLAG_FIFO);
-                            
+
     rt_thread_init(&hid_thread, "hidd", hid_thread_entry, hiddev,
             hid_thread_stack, sizeof(hid_thread_stack), RT_USBD_THREAD_PRIO, 20);
     rt_thread_startup(&hid_thread);
@@ -689,7 +689,7 @@ ufunction_t rt_usbd_function_hid_create(udevice_t device)
 
     /* create a cdc function */
     func = rt_usbd_function_new(device, &_dev_desc, &ops);
-    
+
     /* For high speed mode supporting */
     rt_usbd_device_set_qualifier(device, &dev_qualifier);
 
@@ -730,7 +730,7 @@ ufunction_t rt_usbd_function_hid_create(udevice_t device)
     rt_usb_hid_init(func);
     return func;
 }
-struct udclass hid_class = 
+struct udclass hid_class =
 {
     .rt_usbd_function_create = rt_usbd_function_hid_create
 };
diff --git a/components/drivers/usb/usbdevice/class/hid.h b/components/drivers/usb/usbdevice/class/hid.h
index 4d0f314a11..2b6a4ad90a 100644
--- a/components/drivers/usb/usbdevice/class/hid.h
+++ b/components/drivers/usb/usbdevice/class/hid.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/usb/usbdevice/class/mstorage.c b/components/drivers/usb/usbdevice/class/mstorage.c
index 6991d97eae..f14f6b0c24 100644
--- a/components/drivers/usb/usbdevice/class/mstorage.c
+++ b/components/drivers/usb/usbdevice/class/mstorage.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -7,7 +7,7 @@
  * Date           Author       Notes
  * 2012-10-01     Yi Qiu       first version
  * 2012-11-25     Heyuanjie87  reduce the memory consumption
- * 2012-12-09     Heyuanjie87  change function and endpoint handler 
+ * 2012-12-09     Heyuanjie87  change function and endpoint handler
  * 2013-07-25     Yi Qiu       update for USB CV test
  */
 
@@ -24,10 +24,10 @@
 enum STAT
 {
     STAT_CBW,
-    STAT_CMD,        
+    STAT_CMD,
     STAT_CSW,
     STAT_RECEIVE,
-    STAT_SEND,        
+    STAT_SEND,
 };
 
 typedef enum
@@ -49,7 +49,7 @@ typedef rt_size_t (*cbw_handler)(ufunction_t func, ustorage_cbw_t cbw);
 struct scsi_cmd
 {
     rt_uint16_t cmd;
-    cbw_handler handler;    
+    cbw_handler handler;
     rt_size_t cmd_len;
     CB_SIZE_TYPE type;
     rt_size_t data_size;
@@ -57,10 +57,10 @@ struct scsi_cmd
 };
 
 struct mstorage
-{    
+{
     struct ustorage_csw csw_response;
     uep_t ep_in;
-    uep_t ep_out;    
+    uep_t ep_out;
     int status;
     rt_uint32_t cb_data_size;
     rt_device_t disk;
@@ -68,7 +68,7 @@ struct mstorage
     rt_int32_t count;
     rt_int32_t size;
     struct scsi_cmd* processing;
-    struct rt_device_blk_geometry geometry;    
+    struct rt_device_blk_geometry geometry;
 };
 
 ALIGN(4)
@@ -183,9 +183,9 @@ static struct scsi_cmd cmd_data[] =
     {SCSI_REQUEST_SENSE,   _request_sense,   6,  COUNT,       0, DIR_IN},
     {SCSI_INQUIRY_CMD,     _inquiry_cmd,     6,  COUNT,       0, DIR_IN},
     {SCSI_ALLOW_REMOVAL,   _allow_removal,   6,  FIXED,       0, DIR_NONE},
-    {SCSI_MODE_SENSE_6,    _mode_sense_6,    6,  COUNT,       0, DIR_IN},             
-    {SCSI_START_STOP,      _start_stop,      6,  FIXED,       0, DIR_NONE},            
-    {SCSI_READ_CAPACITIES, _read_capacities, 10, COUNT,       0, DIR_NONE},            
+    {SCSI_MODE_SENSE_6,    _mode_sense_6,    6,  COUNT,       0, DIR_IN},
+    {SCSI_START_STOP,      _start_stop,      6,  FIXED,       0, DIR_NONE},
+    {SCSI_READ_CAPACITIES, _read_capacities, 10, COUNT,       0, DIR_NONE},
     {SCSI_READ_CAPACITY,   _read_capacity,   10, FIXED,       8, DIR_IN},
     {SCSI_READ_10,         _read_10,         10, BLOCK_COUNT, 0, DIR_IN},
     {SCSI_WRITE_10,        _write_10,        10, BLOCK_COUNT, 0, DIR_OUT},
@@ -200,9 +200,9 @@ static void _send_status(ufunction_t func)
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_send_status\n"));
 
-    data = (struct mstorage*)func->user_data;   
+    data = (struct mstorage*)func->user_data;
     data->ep_in->request.buffer = (rt_uint8_t*)&data->csw_response;
-    data->ep_in->request.size = SIZEOF_CSW;    
+    data->ep_in->request.size = SIZEOF_CSW;
     data->ep_in->request.req_type = UIO_REQUEST_WRITE;
     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);
     data->status = STAT_CSW;
@@ -213,13 +213,13 @@ static rt_size_t _test_unit_ready(ufunction_t func, ustorage_cbw_t cbw)
     struct mstorage *data;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_test_unit_ready\n"));
 
     data = (struct mstorage*)func->user_data;
     data->csw_response.status = 0;
-        
+
     return 0;
 }
 
@@ -228,7 +228,7 @@ static rt_size_t _allow_removal(ufunction_t func, ustorage_cbw_t cbw)
     struct mstorage *data;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_allow_removal\n"));
 
@@ -241,7 +241,7 @@ static rt_size_t _allow_removal(ufunction_t func, ustorage_cbw_t cbw)
 /**
  * This function will handle inquiry command request.
  *
- * @param func the usb function object. 
+ * @param func the usb function object.
  * @param cbw the command block wrapper.
  *
  * @return RT_EOK on successful.
@@ -253,12 +253,12 @@ static rt_size_t _inquiry_cmd(ufunction_t func, ustorage_cbw_t cbw)
     rt_uint8_t *buf;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_inquiry_cmd\n"));
 
-    data = (struct mstorage*)func->user_data;   
+    data = (struct mstorage*)func->user_data;
     buf = data->ep_in->buffer;
 
     *(rt_uint32_t*)&buf[0] = 0x0 | (0x80 << 8);
@@ -281,7 +281,7 @@ static rt_size_t _inquiry_cmd(ufunction_t func, ustorage_cbw_t cbw)
 /**
  * This function will handle sense request.
  *
- * @param func the usb function object. 
+ * @param func the usb function object.
  * @param cbw the command block wrapper.
  *
  * @return RT_EOK on successful.
@@ -292,12 +292,12 @@ static rt_size_t _request_sense(ufunction_t func, ustorage_cbw_t cbw)
     struct request_sense_data *buf;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_request_sense\n"));
-    
-    data = (struct mstorage*)func->user_data;   
+
+    data = (struct mstorage*)func->user_data;
     buf = (struct request_sense_data *)data->ep_in->buffer;
 
     buf->ErrorCode = 0x70;
@@ -325,7 +325,7 @@ static rt_size_t _request_sense(ufunction_t func, ustorage_cbw_t cbw)
  * This function will handle mode_sense_6 request.
  *
  * @param func the usb function object.
- * @param cbw the command block wrapper. 
+ * @param cbw the command block wrapper.
  *
  * @return RT_EOK on successful.
  */
@@ -335,12 +335,12 @@ static rt_size_t _mode_sense_6(ufunction_t func, ustorage_cbw_t cbw)
     rt_uint8_t *buf;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_mode_sense_6\n"));
 
-    data = (struct mstorage*)func->user_data;   
+    data = (struct mstorage*)func->user_data;
     buf = data->ep_in->buffer;
     buf[0] = 3;
     buf[1] = 0;
@@ -360,7 +360,7 @@ static rt_size_t _mode_sense_6(ufunction_t func, ustorage_cbw_t cbw)
 /**
  * This function will handle read_capacities request.
  *
- * @param func the usb function object. 
+ * @param func the usb function object.
  * @param cbw the command block wrapper.
  *
  * @return RT_EOK on successful.
@@ -372,12 +372,12 @@ static rt_size_t _read_capacities(ufunction_t func, ustorage_cbw_t cbw)
     rt_uint32_t sector_count, sector_size;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_read_capacities\n"));
 
-    data = (struct mstorage*)func->user_data;   
+    data = (struct mstorage*)func->user_data;
     buf = data->ep_in->buffer;
     sector_count = data->geometry.sector_count;
     sector_size = data->geometry.bytes_per_sector;
@@ -405,7 +405,7 @@ static rt_size_t _read_capacities(ufunction_t func, ustorage_cbw_t cbw)
 /**
  * This function will handle read_capacity request.
  *
- * @param func the usb function object. 
+ * @param func the usb function object.
  * @param cbw the command block wapper.
  *
  * @return RT_EOK on successful.
@@ -418,13 +418,13 @@ static rt_size_t _read_capacity(ufunction_t func, ustorage_cbw_t cbw)
     rt_uint32_t sector_count, sector_size;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_read_capacity\n"));
 
-    data = (struct mstorage*)func->user_data;   
-    buf = data->ep_in->buffer;    
+    data = (struct mstorage*)func->user_data;
+    buf = data->ep_in->buffer;
     sector_count = data->geometry.sector_count - 1; /* Last Logical Block Address */
     sector_size = data->geometry.bytes_per_sector;
 
@@ -459,19 +459,19 @@ static rt_size_t _read_10(ufunction_t func, ustorage_cbw_t cbw)
 {
     struct mstorage *data;
     rt_size_t size;
-    
+
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL);    
+    RT_ASSERT(func->device != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
 
-    data = (struct mstorage*)func->user_data;           
+    data = (struct mstorage*)func->user_data;
     data->block = cbw->cb[2]<<24 | cbw->cb[3]<<16 | cbw->cb[4]<<8  |
              cbw->cb[5]<<0;
     data->count = cbw->cb[7]<<8 | cbw->cb[8]<<0;
 
     RT_ASSERT(data->count < data->geometry.sector_count);
 
-    data->csw_response.data_reside = data->cb_data_size;    
+    data->csw_response.data_reside = data->cb_data_size;
     size = rt_device_read(data->disk, data->block, data->ep_in->buffer, 1);
     if(size == 0)
     {
@@ -479,11 +479,11 @@ static rt_size_t _read_10(ufunction_t func, ustorage_cbw_t cbw)
     }
 
     data->ep_in->request.buffer = data->ep_in->buffer;
-    data->ep_in->request.size = data->geometry.bytes_per_sector;    
-    data->ep_in->request.req_type = UIO_REQUEST_WRITE;    
+    data->ep_in->request.size = data->geometry.bytes_per_sector;
+    data->ep_in->request.req_type = UIO_REQUEST_WRITE;
     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);
     data->status = STAT_SEND;
-    
+
     return data->geometry.bytes_per_sector;
 }
 
@@ -503,7 +503,7 @@ static rt_size_t _write_10(ufunction_t func, ustorage_cbw_t cbw)
     RT_ASSERT(func->device != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
 
-    data = (struct mstorage*)func->user_data;   
+    data = (struct mstorage*)func->user_data;
 
     data->block = cbw->cb[2]<<24 | cbw->cb[3]<<16 | cbw->cb[4]<<8  |
              cbw->cb[5]<<0;
@@ -515,13 +515,13 @@ static rt_size_t _write_10(ufunction_t func, ustorage_cbw_t cbw)
                                 data->count, data->block, data->geometry.sector_count));
 
     data->csw_response.data_reside = data->cb_data_size;
-    
+
     data->ep_out->request.buffer = data->ep_out->buffer;
-    data->ep_out->request.size = data->geometry.bytes_per_sector;    
+    data->ep_out->request.size = data->geometry.bytes_per_sector;
     data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;
     rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);
     data->status = STAT_RECEIVE;
-    
+
     return data->geometry.bytes_per_sector;
 }
 
@@ -537,42 +537,42 @@ static rt_size_t _verify_10(ufunction_t func, ustorage_cbw_t cbw)
     struct mstorage *data;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_verify_10\n"));
 
     data = (struct mstorage*)func->user_data;
     data->csw_response.status = 0;
-        
+
     return 0;
 }
 
-static rt_size_t _start_stop(ufunction_t func, 
+static rt_size_t _start_stop(ufunction_t func,
     ustorage_cbw_t cbw)
 {
     struct mstorage *data;
 
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL); 
+    RT_ASSERT(func->device != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_start_stop\n"));
 
     data = (struct mstorage*)func->user_data;
     data->csw_response.status = 0;
-        
+
     return 0;
 }
 
 static rt_err_t _ep_in_handler(ufunction_t func, rt_size_t size)
 {
     struct mstorage *data;
-    
+
     RT_ASSERT(func != RT_NULL);
     RT_ASSERT(func->device != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_ep_in_handler\n"));
-    
-    data = (struct mstorage*)func->user_data;   
+
+    data = (struct mstorage*)func->user_data;
 
     switch(data->status)
     {
@@ -580,15 +580,15 @@ static rt_err_t _ep_in_handler(ufunction_t func, rt_size_t size)
         if(data->ep_in->request.size != SIZEOF_CSW)
         {
             rt_kprintf("Size of csw command error\n");
-            rt_usbd_ep_set_stall(func->device, data->ep_in);            
+            rt_usbd_ep_set_stall(func->device, data->ep_in);
         }
         else
         {
             RT_DEBUG_LOG(RT_DEBUG_USB, ("return to cbw status\n"));
             data->ep_out->request.buffer = data->ep_out->buffer;
             data->ep_out->request.size = SIZEOF_CBW;
-            data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;    
-            rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);            
+            data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;
+            rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);
             data->status = STAT_CBW;
         }
         break;
@@ -601,47 +601,47 @@ static rt_err_t _ep_in_handler(ufunction_t func, rt_size_t size)
         {
             data->csw_response.data_reside -= data->ep_in->request.size;
             if(data->csw_response.data_reside != 0)
-            {            
-                RT_DEBUG_LOG(RT_DEBUG_USB, ("data_reside %d, request %d\n", 
+            {
+                RT_DEBUG_LOG(RT_DEBUG_USB, ("data_reside %d, request %d\n",
                     data->csw_response.data_reside, data->ep_in->request.size));
                 if(data->processing->dir == DIR_OUT)
                 {
                     rt_usbd_ep_set_stall(func->device, data->ep_out);
                 }
                 else
-                {   
+                {
                     //rt_kprintf("warning:in stall path but not stall\n");
-                    
+
                     /* FIXME: Disable the operation or the disk cannot work. */
-                    //rt_usbd_ep_set_stall(func->device, data->ep_in);                    
+                    //rt_usbd_ep_set_stall(func->device, data->ep_in);
                 }
                 data->csw_response.data_reside = 0;
             }
             }
         _send_status(func);
         break;
-     case STAT_SEND:        
+     case STAT_SEND:
         data->csw_response.data_reside -= data->ep_in->request.size;
-        data->count--;    
-        data->block++;        
+        data->count--;
+        data->block++;
         if(data->count > 0 && data->csw_response.data_reside > 0)
         {
             if(rt_device_read(data->disk, data->block, data->ep_in->buffer, 1) == 0)
             {
                 rt_kprintf("disk read error\n");
                 rt_usbd_ep_set_stall(func->device, data->ep_in);
-                return -RT_ERROR;                
+                return -RT_ERROR;
             }
 
             data->ep_in->request.buffer = data->ep_in->buffer;
-            data->ep_in->request.size = data->geometry.bytes_per_sector;    
-            data->ep_in->request.req_type = UIO_REQUEST_WRITE;    
-            rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);            
+            data->ep_in->request.size = data->geometry.bytes_per_sector;
+            data->ep_in->request.req_type = UIO_REQUEST_WRITE;
+            rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);
         }
         else
         {
-            _send_status(func);            
-        }        
+            _send_status(func);
+        }
         break;
      }
 
@@ -671,7 +671,7 @@ static struct scsi_cmd* _find_cbw_command(rt_uint16_t cmd)
     {
         if(cmd_data[i].cmd == cmd)
             return &cmd_data[i];
-    }    
+    }
 
     return RT_NULL;
 }
@@ -685,7 +685,7 @@ static void _cb_len_calc(ufunction_t func, struct scsi_cmd* cmd,
     RT_ASSERT(cmd != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
 
-    data = (struct mstorage*)func->user_data;   
+    data = (struct mstorage*)func->user_data;
     if(cmd->cmd_len == 6)
     {
         switch(cmd->type)
@@ -699,9 +699,9 @@ static void _cb_len_calc(ufunction_t func, struct scsi_cmd* cmd,
         case FIXED:
             data->cb_data_size = cmd->data_size;
             break;
-        default:       
+        default:
             break;
-        }        
+        }
     }
     else if(cmd->cmd_len == 10)
     {
@@ -711,32 +711,32 @@ static void _cb_len_calc(ufunction_t func, struct scsi_cmd* cmd,
             data->cb_data_size = cbw->cb[7]<<8 | cbw->cb[8];
             break;
         case BLOCK_COUNT:
-            data->cb_data_size = (cbw->cb[7]<<8 | cbw->cb[8]) * 
+            data->cb_data_size = (cbw->cb[7]<<8 | cbw->cb[8]) *
                 data->geometry.bytes_per_sector;
             break;
         case FIXED:
             data->cb_data_size = cmd->data_size;
             break;
-        default:      
+        default:
             break;
         }
     }
-    
+
     //workaround: for stability in full-speed mode
     else if(cmd->cmd_len == 12)
     {
         switch(cmd->type)
         {
         case COUNT:
-            data->cb_data_size = cbw->cb[4]; 
+            data->cb_data_size = cbw->cb[4];
             break;
-        default:      
+        default:
             break;
         }
     }
     else
     {
-        rt_kprintf("cmd_len error %d\n", cmd->cmd_len);      
+        rt_kprintf("cmd_len error %d\n", cmd->cmd_len);
     }
 }
 
@@ -749,7 +749,7 @@ static rt_bool_t _cbw_verify(ufunction_t func, struct scsi_cmd* cmd,
     RT_ASSERT(cbw != RT_NULL);
     RT_ASSERT(func != RT_NULL);
 
-    data = (struct mstorage*)func->user_data;   
+    data = (struct mstorage*)func->user_data;
     if(cmd->cmd_len != cbw->cb_len)
     {
         rt_kprintf("cb_len error\n");
@@ -780,7 +780,7 @@ static rt_bool_t _cbw_verify(ufunction_t func, struct scsi_cmd* cmd,
         rt_kprintf("xfer_len > data_size\n");
         return RT_FALSE;
     }
-    
+
     if(cbw->xfer_len < data->cb_data_size)
     {
         rt_kprintf("xfer_len < data_size\n");
@@ -788,18 +788,18 @@ static rt_bool_t _cbw_verify(ufunction_t func, struct scsi_cmd* cmd,
         data->csw_response.status = 1;
     }
 
-    return RT_TRUE; 
+    return RT_TRUE;
 }
 
 static rt_size_t _cbw_handler(ufunction_t func, struct scsi_cmd* cmd,
     ustorage_cbw_t cbw)
-{    
+{
     struct mstorage *data;
 
     RT_ASSERT(func != RT_NULL);
     RT_ASSERT(cbw != RT_NULL);
     RT_ASSERT(cmd->handler != RT_NULL);
-        
+
     data = (struct mstorage*)func->user_data;
     data->processing = cmd;
     return cmd->handler(func, cbw);
@@ -819,21 +819,21 @@ static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
     struct scsi_cmd* cmd;
     rt_size_t len;
     struct ustorage_cbw* cbw;
-    
+
     RT_ASSERT(func != RT_NULL);
     RT_ASSERT(func->device != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_ep_out_handler %d\n", size));
-    
+
     data = (struct mstorage*)func->user_data;
-    cbw = (struct ustorage_cbw*)data->ep_out->buffer;    
+    cbw = (struct ustorage_cbw*)data->ep_out->buffer;
     if(data->status == STAT_CBW)
     {
         /* dump cbw information */
         if(cbw->signature != CBW_SIGNATURE || size != SIZEOF_CBW)
         {
             goto exit;
-        }        
+        }
 
         data->csw_response.signature = CSW_SIGNATURE;
         data->csw_response.tag = cbw->tag;
@@ -841,33 +841,33 @@ static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
         data->csw_response.status = 0;
 
         RT_DEBUG_LOG(RT_DEBUG_USB, ("ep_out reside %d\n", data->csw_response.data_reside));
-        
+
         cmd = _find_cbw_command(cbw->cb[0]);
         if(cmd == RT_NULL)
         {
             rt_kprintf("can't find cbw command\n");
             goto exit;
-        }        
+        }
 
         _cb_len_calc(func, cmd, cbw);
         if(!_cbw_verify(func, cmd, cbw))
         {
             goto exit;
         }
-        
+
         len = _cbw_handler(func, cmd, cbw);
         if(len == 0)
         {
             _send_status(func);
-        }      
-        
-        return RT_EOK;        
+        }
+
+        return RT_EOK;
     }
     else if(data->status == STAT_RECEIVE)
     {
         RT_DEBUG_LOG(RT_DEBUG_USB, ("\nwrite size %d block 0x%x oount 0x%x\n",
                                     size, data->block, data->size));
-        
+
         data->size -= size;
         data->csw_response.data_reside -= size;
 
@@ -876,10 +876,10 @@ static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
         if(data->csw_response.data_reside != 0)
         {
             data->ep_out->request.buffer = data->ep_out->buffer;
-            data->ep_out->request.size = data->geometry.bytes_per_sector;    
-            data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;    
+            data->ep_out->request.size = data->geometry.bytes_per_sector;
+            data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;
             rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);
-            data->block ++;                        
+            data->block ++;
         }
         else
         {
@@ -904,7 +904,7 @@ exit:
     }
     data->csw_response.status = 1;
     _send_status(func);
-    
+
     return -RT_ERROR;
 }
 
@@ -919,21 +919,21 @@ exit:
 static rt_err_t _interface_handler(ufunction_t func, ureq_t setup)
 {
     rt_uint8_t lun = 0;
-    
+
     RT_ASSERT(func != RT_NULL);
-    RT_ASSERT(func->device != RT_NULL);    
+    RT_ASSERT(func->device != RT_NULL);
     RT_ASSERT(setup != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("mstorage_interface_handler\n"));
 
     switch(setup->bRequest)
     {
-    case USBREQ_GET_MAX_LUN:        
-        
+    case USBREQ_GET_MAX_LUN:
+
         RT_DEBUG_LOG(RT_DEBUG_USB, ("USBREQ_GET_MAX_LUN\n"));
-        
+
         if(setup->wValue || setup->wLength != 1)
-        {        
+        {
             rt_usbd_ep0_set_stall(func->device);
         }
         else
@@ -944,14 +944,14 @@ static rt_err_t _interface_handler(ufunction_t func, ureq_t setup)
     case USBREQ_MASS_STORAGE_RESET:
 
         RT_DEBUG_LOG(RT_DEBUG_USB, ("USBREQ_MASS_STORAGE_RESET\n"));
-        
+
         if(setup->wValue || setup->wLength != 0)
         {
             rt_usbd_ep0_set_stall(func->device);
         }
         else
-        {   
-            dcd_ep0_send_status(func->device->dcd);     
+        {
+            dcd_ep0_send_status(func->device->dcd);
         }
         break;
     default:
@@ -992,14 +992,14 @@ static rt_err_t _function_enable(ufunction_t func)
         rt_kprintf("disk open error\n");
         return -RT_ERROR;
     }
-    
-    if(rt_device_control(data->disk, RT_DEVICE_CTRL_BLK_GETGEOME, 
+
+    if(rt_device_control(data->disk, RT_DEVICE_CTRL_BLK_GETGEOME,
         (void*)&data->geometry) != RT_EOK)
     {
         rt_kprintf("get disk info error\n");
         return -RT_ERROR;
     }
-    
+
     data->ep_in->buffer = (rt_uint8_t*)rt_malloc(data->geometry.bytes_per_sector);
     if(data->ep_in->buffer == RT_NULL)
     {
@@ -1012,14 +1012,14 @@ static rt_err_t _function_enable(ufunction_t func)
         rt_free(data->ep_in->buffer);
         rt_kprintf("no memory\n");
         return -RT_ENOMEM;
-    }    
- 
+    }
+
     /* prepare to read CBW request */
     data->ep_out->request.buffer = data->ep_out->buffer;
-    data->ep_out->request.size = SIZEOF_CBW;    
-    data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;    
+    data->ep_out->request.size = SIZEOF_CBW;
+    data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;
     rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);
-    
+
     return RT_EOK;
 }
 
@@ -1037,11 +1037,11 @@ static rt_err_t _function_disable(ufunction_t func)
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("Mass storage function disabled\n"));
 
-    data = (struct mstorage*)func->user_data;   
+    data = (struct mstorage*)func->user_data;
     if(data->ep_in->buffer != RT_NULL)
     {
         rt_free(data->ep_in->buffer);
-        data->ep_in->buffer = RT_NULL;               
+        data->ep_in->buffer = RT_NULL;
     }
 
     if(data->ep_out->buffer != RT_NULL)
@@ -1057,9 +1057,9 @@ static rt_err_t _function_disable(ufunction_t func)
 #endif
         data->disk = RT_NULL;
     }
-    
+
     data->status = STAT_CBW;
-    
+
     return RT_EOK;
 }
 
@@ -1098,11 +1098,11 @@ ufunction_t rt_usbd_function_mstorage_create(udevice_t device)
 
     /* set usb device string description */
     rt_usbd_device_set_string(device, _ustring);
-    
+
     /* create a mass storage function */
     func = rt_usbd_function_new(device, &dev_desc, &ops);
     device->dev_qualifier = &dev_qualifier;
-    
+
     /* allocate memory for mass storage function data */
     data = (struct mstorage*)rt_malloc(sizeof(struct mstorage));
     rt_memset(data, 0, sizeof(struct mstorage));
@@ -1113,7 +1113,7 @@ ufunction_t rt_usbd_function_mstorage_create(udevice_t device)
 
     /* create an alternate setting object */
     setting = rt_usbd_altsetting_new(sizeof(struct umass_descriptor));
-    
+
     /* config desc in alternate setting */
     rt_usbd_altsetting_config_descriptor(setting, &_mass_desc, (rt_off_t)&((umass_desc_t)0)->intf_desc);
 
@@ -1138,7 +1138,7 @@ ufunction_t rt_usbd_function_mstorage_create(udevice_t device)
 
     return func;
 }
-struct udclass msc_class = 
+struct udclass msc_class =
 {
     .rt_usbd_function_create = rt_usbd_function_mstorage_create
 };
diff --git a/components/drivers/usb/usbdevice/class/mstorage.h b/components/drivers/usb/usbdevice/class/mstorage.h
index 254038195b..6c81809ef2 100644
--- a/components/drivers/usb/usbdevice/class/mstorage.h
+++ b/components/drivers/usb/usbdevice/class/mstorage.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -8,7 +8,7 @@
  * 2012-10-01     Yi Qiu       first version
  * 2012-12-12     heyuanjie87  add MASS endpoints collection
  */
- 
+
 #ifndef  __MSTORAGE_H__
 #define  __MSTORAGE_H__
 
@@ -23,7 +23,7 @@ struct umass_descriptor
 #endif
     struct uinterface_descriptor intf_desc;
     struct uendpoint_descriptor ep_out_desc;
-    struct uendpoint_descriptor ep_in_desc;    
+    struct uendpoint_descriptor ep_in_desc;
 };
 typedef struct umass_descriptor* umass_desc_t;
 
diff --git a/components/drivers/usb/usbdevice/class/ndis.h b/components/drivers/usb/usbdevice/class/ndis.h
index 6d6943366e..b83f3c78ec 100644
--- a/components/drivers/usb/usbdevice/class/ndis.h
+++ b/components/drivers/usb/usbdevice/class/ndis.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -7,14 +7,14 @@
  * Date           Author       Notes
  */
 /*
- * ndis.h 
- * 
+ * ndis.h
+ *
  * Modified by Colin O'Flynn <coflynn@newae.com>
  * ntddndis.h modified by Benedikt Spranger <b.spranger@pengutronix.de>
- * 
- * Thanks to the cygwin development team, 
+ *
+ * Thanks to the cygwin development team,
  * espacially to Casper S. Hornstrup <chorns@users.sourceforge.net>
- * 
+ *
  * THIS SOFTWARE IS NOT COPYRIGHTED
  *
  * This source code is offered for use in the public domain. You may
@@ -30,7 +30,7 @@
 #ifndef  __NDIS_H__
 #define  __NDIS_H__
 
-#define NDIS_STATUS_MULTICAST_FULL	      0xC0010009
+#define NDIS_STATUS_MULTICAST_FULL        0xC0010009
 #define NDIS_STATUS_MULTICAST_EXISTS      0xC001000A
 #define NDIS_STATUS_MULTICAST_NOT_FOUND   0xC001000B
 
@@ -42,21 +42,21 @@
 #define OID_PNP_REMOVE_WAKE_UP_PATTERN          0xFD010104
 #define OID_PNP_ENABLE_WAKE_UP                  0xFD010106
 
-enum NDIS_DEVICE_POWER_STATE 
+enum NDIS_DEVICE_POWER_STATE
 {
-	NdisDeviceStateUnspecified = 0,
-	NdisDeviceStateD0,
-	NdisDeviceStateD1,
-	NdisDeviceStateD2,
-	NdisDeviceStateD3,
-	NdisDeviceStateMaximum
+    NdisDeviceStateUnspecified = 0,
+    NdisDeviceStateD0,
+    NdisDeviceStateD1,
+    NdisDeviceStateD2,
+    NdisDeviceStateD3,
+    NdisDeviceStateMaximum
 };
 
 struct NDIS_PM_WAKE_UP_CAPABILITIES
 {
-	enum NDIS_DEVICE_POWER_STATE  MinMagicPacketWakeUp;
-	enum NDIS_DEVICE_POWER_STATE  MinPatternWakeUp;
-	enum NDIS_DEVICE_POWER_STATE  MinLinkChangeWakeUp;
+    enum NDIS_DEVICE_POWER_STATE  MinMagicPacketWakeUp;
+    enum NDIS_DEVICE_POWER_STATE  MinPatternWakeUp;
+    enum NDIS_DEVICE_POWER_STATE  MinLinkChangeWakeUp;
 };
 
 /* NDIS_PNP_CAPABILITIES.Flags constants */
@@ -194,36 +194,36 @@ struct NDIS_PM_WAKE_UP_CAPABILITIES
 #define NDIS_MINIPORT_SUPPORTS_CANCEL_SEND_PACKETS    0x00800000
 #define NDIS_MINIPORT_64BITS_DMA                      0x01000000
 
-#define NDIS_MEDIUM_802_3		 0x00000000
-#define NDIS_MEDIUM_802_5		 0x00000001
-#define NDIS_MEDIUM_FDDI		 0x00000002
-#define NDIS_MEDIUM_WAN			 0x00000003
-#define NDIS_MEDIUM_LOCAL_TALK	 0x00000004
-#define NDIS_MEDIUM_DIX			 0x00000005
+#define NDIS_MEDIUM_802_3        0x00000000
+#define NDIS_MEDIUM_802_5        0x00000001
+#define NDIS_MEDIUM_FDDI         0x00000002
+#define NDIS_MEDIUM_WAN          0x00000003
+#define NDIS_MEDIUM_LOCAL_TALK   0x00000004
+#define NDIS_MEDIUM_DIX          0x00000005
 #define NDIS_MEDIUM_ARCENT_RAW   0x00000006
 #define NDIS_MEDIUM_ARCENT_878_2 0x00000007
-#define NDIS_MEDIUM_ATM			 0x00000008
+#define NDIS_MEDIUM_ATM          0x00000008
 #define NDIS_MEDIUM_WIRELESS_LAN 0x00000009
-#define NDIS_MEDIUM_IRDA		 0x0000000A
-#define NDIS_MEDIUM_BPC			 0x0000000B
-#define NDIS_MEDIUM_CO_WAN		 0x0000000C
-#define NDIS_MEDIUM_1394		 0x0000000D
+#define NDIS_MEDIUM_IRDA         0x0000000A
+#define NDIS_MEDIUM_BPC          0x0000000B
+#define NDIS_MEDIUM_CO_WAN       0x0000000C
+#define NDIS_MEDIUM_1394         0x0000000D
 
-#define NDIS_PACKET_TYPE_DIRECTED	    0x00000001
-#define NDIS_PACKET_TYPE_MULTICAST	    0x00000002
-#define NDIS_PACKET_TYPE_ALL_MULTICAST	0x00000004
-#define NDIS_PACKET_TYPE_BROADCAST	    0x00000008
-#define NDIS_PACKET_TYPE_SOURCE_ROUTING	0x00000010
-#define NDIS_PACKET_TYPE_PROMISCUOUS	0x00000020
-#define NDIS_PACKET_TYPE_SMT		    0x00000040
-#define NDIS_PACKET_TYPE_ALL_LOCAL	    0x00000080
-#define NDIS_PACKET_TYPE_GROUP		    0x00000100
-#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL	0x00000200
-#define NDIS_PACKET_TYPE_FUNCTIONAL	    0x00000400
-#define NDIS_PACKET_TYPE_MAC_FRAME	    0x00000800
+#define NDIS_PACKET_TYPE_DIRECTED       0x00000001
+#define NDIS_PACKET_TYPE_MULTICAST      0x00000002
+#define NDIS_PACKET_TYPE_ALL_MULTICAST  0x00000004
+#define NDIS_PACKET_TYPE_BROADCAST      0x00000008
+#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
+#define NDIS_PACKET_TYPE_PROMISCUOUS    0x00000020
+#define NDIS_PACKET_TYPE_SMT            0x00000040
+#define NDIS_PACKET_TYPE_ALL_LOCAL      0x00000080
+#define NDIS_PACKET_TYPE_GROUP          0x00000100
+#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
+#define NDIS_PACKET_TYPE_FUNCTIONAL     0x00000400
+#define NDIS_PACKET_TYPE_MAC_FRAME      0x00000800
 
-#define NDIS_MEDIA_STATE_CONNECTED	    0x00000000
-#define NDIS_MEDIA_STATE_DISCONNECTED	0x00000001
+#define NDIS_MEDIA_STATE_CONNECTED      0x00000000
+#define NDIS_MEDIA_STATE_DISCONNECTED   0x00000001
 
 #define NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA     0x00000001
 #define NDIS_MAC_OPTION_RECEIVE_SERIALIZED      0x00000002
diff --git a/components/drivers/usb/usbdevice/class/rndis.c b/components/drivers/usb/usbdevice/class/rndis.c
index 93e0ba6ae2..391924dba0 100644
--- a/components/drivers/usb/usbdevice/class/rndis.c
+++ b/components/drivers/usb/usbdevice/class/rndis.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -215,7 +215,7 @@ const static char* _ustring[] =
 };
 
 ALIGN(4)
-struct usb_os_function_comp_id_descriptor rndis_func_comp_id_desc = 
+struct usb_os_function_comp_id_descriptor rndis_func_comp_id_desc =
 {
     .bFirstInterfaceNumber = USB_DYNAMIC,
     .reserved1          = 0x01,
@@ -347,7 +347,7 @@ static rt_err_t _rndis_init_response(ufunction_t func, rndis_init_msg_t msg)
         rt_list_insert_before(&((rt_rndis_eth_t)func->user_data)->response_list, &response->list);
         rt_hw_interrupt_enable(level);
     }
-    
+
 
     return RT_EOK;
 }
@@ -764,7 +764,7 @@ static rt_err_t send_encapsulated_command_done(udevice_t device, rt_size_t size)
 }
 //#error here have bug ep 0x82 send failed
 static rt_err_t _rndis_send_encapsulated_command(ufunction_t func, ureq_t setup)
-{    
+{
     RT_ASSERT(setup->wLength <= sizeof(rndis_message_buffer));
     function = func;
     rt_usbd_ep0_read(func->device,rndis_message_buffer,setup->wLength,send_encapsulated_command_done);
@@ -808,7 +808,7 @@ static rt_err_t _rndis_get_encapsulated_response(ufunction_t func, ureq_t setup)
         data[1] = 0;
         ((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request.buffer = ((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->buffer;
         ((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request.size = 8;
-        ((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request.req_type = UIO_REQUEST_WRITE;    
+        ((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request.req_type = UIO_REQUEST_WRITE;
         rt_usbd_io_request(func->device, ((rt_rndis_eth_t)func->user_data)->eps.ep_cmd, &((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request);
     }
     else
@@ -983,7 +983,7 @@ static rt_err_t _function_enable(ufunction_t func)
         ((rt_rndis_eth_t)func->user_data)->need_notify = RT_TRUE;
         rt_hw_interrupt_enable(level);
     }
-    
+
     return RT_EOK;
 }
 
@@ -1022,7 +1022,7 @@ static rt_err_t _function_disable(ufunction_t func)
         rt_hw_interrupt_enable(level);
     }
 
-    
+
     /* link down. */
     eth_device_linkchange(&((rt_rndis_eth_t)func->user_data)->parent, RT_FALSE);
 
@@ -1323,7 +1323,7 @@ ufunction_t rt_usbd_function_rndis_create(udevice_t device)
     /* create a cdc class */
     cdc = rt_usbd_function_new(device, &_dev_desc, &ops);
     rt_usbd_device_set_qualifier(device, &dev_qualifier);
-    _rndis= rt_malloc(sizeof(struct rt_rndis_eth)); 
+    _rndis= rt_malloc(sizeof(struct rt_rndis_eth));
     rt_memset(_rndis, 0, sizeof(struct rt_rndis_eth));
     cdc->user_data = _rndis;
 
@@ -1357,7 +1357,7 @@ ufunction_t rt_usbd_function_rndis_create(udevice_t device)
     rt_usbd_set_altsetting(intf_comm, 0);
     /* add the communication interface to the cdc class */
     rt_usbd_function_add_interface(cdc, intf_comm);
-    
+
     /* create a bulk in and a bulk out endpoint */
     data_desc = (ucdc_data_desc_t)data_setting->desc;
     eps->ep_out = rt_usbd_endpoint_new(&data_desc->ep_out_desc, _ep_out_handler);
@@ -1434,7 +1434,7 @@ ufunction_t rt_usbd_function_rndis_create(udevice_t device)
     return cdc;
 }
 
-struct udclass rndis_class = 
+struct udclass rndis_class =
 {
     .rt_usbd_function_create = rt_usbd_function_rndis_create
 };
diff --git a/components/drivers/usb/usbdevice/class/rndis.h b/components/drivers/usb/usbdevice/class/rndis.h
index fcdd249984..f25ae4931c 100644
--- a/components/drivers/usb/usbdevice/class/rndis.h
+++ b/components/drivers/usb/usbdevice/class/rndis.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -13,43 +13,43 @@
 
 #include <rtthread.h>
 
-#define USB_ETH_MTU	                    1500+14
+#define USB_ETH_MTU                     1500+14
 #define RNDIS_MESSAGE_BUFFER_SIZE       128
 
 #define RESPONSE_AVAILABLE            0x00000001
 
 /* Remote NDIS version numbers */
-#define RNDIS_MAJOR_VERSION	1
+#define RNDIS_MAJOR_VERSION 1
 #define RNDIS_MINOR_VERSION 0
 
 /* common status values */
-#define RNDIS_STATUS_SUCCESS 			0X00000000
-#define RNDIS_STATUS_FAILURE			0XC0000001
-#define RNDIS_STATUS_INVALID_DATA		0XC0010015
-#define RNDIS_STATUS_NOT_SUPPORTED 		0XC00000BB
-#define RNDIS_STATUS_MEDIA_CONNECT		0X4001000B
-#define RNDIS_STATUS_MEDIA_DISCONNECT	0X4001000C
+#define RNDIS_STATUS_SUCCESS            0X00000000
+#define RNDIS_STATUS_FAILURE            0XC0000001
+#define RNDIS_STATUS_INVALID_DATA       0XC0010015
+#define RNDIS_STATUS_NOT_SUPPORTED      0XC00000BB
+#define RNDIS_STATUS_MEDIA_CONNECT      0X4001000B
+#define RNDIS_STATUS_MEDIA_DISCONNECT   0X4001000C
 
 /* Remote NDIS message types */
-#define REMOTE_NDIS_PACKET_MSG			0x00000001
-#define REMOTE_NDIS_INITIALIZE_MSG		0X00000002
-#define REMOTE_NDIS_HALT_MSG			0X00000003
-#define REMOTE_NDIS_QUERY_MSG			0X00000004
-#define REMOTE_NDIS_SET_MSG				0X00000005
-#define REMOTE_NDIS_RESET_MSG			0X00000006
+#define REMOTE_NDIS_PACKET_MSG          0x00000001
+#define REMOTE_NDIS_INITIALIZE_MSG      0X00000002
+#define REMOTE_NDIS_HALT_MSG            0X00000003
+#define REMOTE_NDIS_QUERY_MSG           0X00000004
+#define REMOTE_NDIS_SET_MSG             0X00000005
+#define REMOTE_NDIS_RESET_MSG           0X00000006
 #define REMOTE_NDIS_INDICATE_STATUS_MSG 0X00000007
-#define REMOTE_NDIS_KEEPALIVE_MSG		0X00000008
-#define REMOTE_NDIS_INITIALIZE_CMPLT	0X80000002
-#define REMOTE_NDIS_QUERY_CMPLT			0X80000004
-#define REMOTE_NDIS_SET_CMPLT			0X80000005
-#define REMOTE_NDIS_RESET_CMPLT			0X80000006
-#define REMOTE_NDIS_KEEPALIVE_CMPLT		0X80000008
+#define REMOTE_NDIS_KEEPALIVE_MSG       0X00000008
+#define REMOTE_NDIS_INITIALIZE_CMPLT    0X80000002
+#define REMOTE_NDIS_QUERY_CMPLT         0X80000004
+#define REMOTE_NDIS_SET_CMPLT           0X80000005
+#define REMOTE_NDIS_RESET_CMPLT         0X80000006
+#define REMOTE_NDIS_KEEPALIVE_CMPLT     0X80000008
 
 /* device flags */
-#define RNDIS_DF_CONNECTIONLESS			0x00000001
-#define RNDIS_DF_CONNECTION_ORIENTED	0x00000002
+#define RNDIS_DF_CONNECTIONLESS         0x00000001
+#define RNDIS_DF_CONNECTION_ORIENTED    0x00000002
 /* mediums */
-#define RNDIS_MEDIUM_802_3				0x00000000
+#define RNDIS_MEDIUM_802_3              0x00000000
 
 struct ucls_rndis
 {
@@ -64,24 +64,24 @@ struct ucls_rndis
 /* Remote NDIS generic message type */
 struct rndis_gen_msg
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
 };
 typedef struct rndis_gen_msg* rndis_gen_msg_t;
 
 struct rndis_packet_msg
 {
-	rt_uint32_t	MessageType;
-	rt_uint32_t	MessageLength;
-	rt_uint32_t	DataOffset;
-	rt_uint32_t	DataLength;
-	rt_uint32_t	OOBDataOffset;
-	rt_uint32_t	OOBDataLength;
-	rt_uint32_t	NumOOBDataElements;
-	rt_uint32_t	PerPacketInfoOffset;
-	rt_uint32_t	PerPacketInfoLength;
-	rt_uint32_t	VcHandle;
-	rt_uint32_t	Reserved;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t DataOffset;
+    rt_uint32_t DataLength;
+    rt_uint32_t OOBDataOffset;
+    rt_uint32_t OOBDataLength;
+    rt_uint32_t NumOOBDataElements;
+    rt_uint32_t PerPacketInfoOffset;
+    rt_uint32_t PerPacketInfoLength;
+    rt_uint32_t VcHandle;
+    rt_uint32_t Reserved;
 };
 typedef struct rndis_packet_msg* rndis_packet_msg_t;
 
@@ -89,132 +89,132 @@ typedef struct rndis_packet_msg* rndis_packet_msg_t;
 struct rndis_init_msg
 {
     rt_uint32_t MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	RequestId;
-    rt_uint32_t	MajorVersion;
-    rt_uint32_t	MinorVersion;
-    rt_uint32_t	MaxTransferSize;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestId;
+    rt_uint32_t MajorVersion;
+    rt_uint32_t MinorVersion;
+    rt_uint32_t MaxTransferSize;
 };
 typedef struct rndis_init_msg* rndis_init_msg_t;
 
 /* Response */
 struct rndis_init_cmplt
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	RequestId;
-    rt_uint32_t	Status;
-    rt_uint32_t	MajorVersion;
-    rt_uint32_t	MinorVersion;
-    rt_uint32_t	DeviceFlags;
-    rt_uint32_t	Medium;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestId;
+    rt_uint32_t Status;
+    rt_uint32_t MajorVersion;
+    rt_uint32_t MinorVersion;
+    rt_uint32_t DeviceFlags;
+    rt_uint32_t Medium;
     rt_uint32_t MaxPacketsPerTransfer;
-    rt_uint32_t	MaxTransferSize;
+    rt_uint32_t MaxTransferSize;
     rt_uint32_t PacketAlignmentFactor;
-    rt_uint32_t	AfListOffset;
-    rt_uint32_t	AfListSize;
+    rt_uint32_t AfListOffset;
+    rt_uint32_t AfListSize;
 };
 typedef struct rndis_init_cmplt* rndis_init_cmplt_t;
 
 /* Remote NDIS Halt Message */
 struct rndis_halt_msg
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	RequestId;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestId;
 };
 
 /* Remote NDIS Query Message */
 struct rndis_query_msg
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	RequestId;
-    rt_uint32_t	Oid;
-    rt_uint32_t	InformationBufferLength;
-    rt_uint32_t	InformationBufferOffset;
-    rt_uint32_t	DeviceVcHandle;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestId;
+    rt_uint32_t Oid;
+    rt_uint32_t InformationBufferLength;
+    rt_uint32_t InformationBufferOffset;
+    rt_uint32_t DeviceVcHandle;
 };
 typedef struct rndis_query_msg* rndis_query_msg_t;
 
 /* Response */
 struct rndis_query_cmplt
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	RequestId;
-    rt_uint32_t	Status;
-    rt_uint32_t	InformationBufferLength;
-    rt_uint32_t	InformationBufferOffset;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestId;
+    rt_uint32_t Status;
+    rt_uint32_t InformationBufferLength;
+    rt_uint32_t InformationBufferOffset;
 };
 typedef struct rndis_query_cmplt* rndis_query_cmplt_t;
 
 /* Remote NDIS Set Message */
 struct rndis_set_msg
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	RequestId;
-    rt_uint32_t	Oid;
-    rt_uint32_t	InformationBufferLength;
-    rt_uint32_t	InformationBufferOffset;
-    rt_uint32_t	DeviceVcHandle;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestId;
+    rt_uint32_t Oid;
+    rt_uint32_t InformationBufferLength;
+    rt_uint32_t InformationBufferOffset;
+    rt_uint32_t DeviceVcHandle;
 };
 typedef struct rndis_set_msg* rndis_set_msg_t;
 
 /* Response */
 struct rndis_set_cmplt
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	RequestId;
-    rt_uint32_t	Status;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestId;
+    rt_uint32_t Status;
 };
 typedef struct rndis_set_cmplt* rndis_set_cmplt_t;
 
 /* Remote NDIS Soft Reset Message */
 struct rndis_reset_msg
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	Reserved;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t Reserved;
 };
 
 /* Remote NDIS Soft Reset Response */
 struct rndis_reset_cmplt
 {
-    rt_uint32_t	MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	Status;
-    rt_uint32_t	AddressingReset;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t Status;
+    rt_uint32_t AddressingReset;
 };
 
 /* Remote NDIS Indicate Status Message */
 struct rndis_indicate_status_msg
 {
     rt_uint32_t MessageType;
-    rt_uint32_t	MessageLength;
-    rt_uint32_t	Status;
-    rt_uint32_t	StatusBufferLength;
-    rt_uint32_t	StatusBufferOffset;
+    rt_uint32_t MessageLength;
+    rt_uint32_t Status;
+    rt_uint32_t StatusBufferLength;
+    rt_uint32_t StatusBufferOffset;
 };
 typedef struct rndis_indicate_status_msg* rndis_indicate_status_msg_t;
 
 struct rndis_keepalive_msg
 {
-	rt_uint32_t	MessageType;
-	rt_uint32_t	MessageLength;
-	rt_uint32_t	RequestID;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestID;
 };
 typedef struct rndis_keepalive_msg* rndis_keepalive_msg_t;
 
 /* Response: */
 struct rndis_keepalive_cmplt
 {
-	rt_uint32_t	MessageType;
-	rt_uint32_t	MessageLength;
-	rt_uint32_t	RequestId;
-	rt_uint32_t	Status;
+    rt_uint32_t MessageType;
+    rt_uint32_t MessageLength;
+    rt_uint32_t RequestId;
+    rt_uint32_t Status;
 };
 typedef struct rndis_keepalive_cmplt* rndis_keepalive_cmplt_t;
 
diff --git a/components/drivers/usb/usbdevice/class/winusb.c b/components/drivers/usb/usbdevice/class/winusb.c
index 4af6dba3cf..0db3de794a 100644
--- a/components/drivers/usb/usbdevice/class/winusb.c
+++ b/components/drivers/usb/usbdevice/class/winusb.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -57,7 +57,7 @@ static struct usb_qualifier_descriptor dev_qualifier =
 };
 
 ALIGN(4)
-struct winusb_descriptor _winusb_desc = 
+struct winusb_descriptor _winusb_desc =
 {
 #ifdef RT_USB_DEVICE_COMPOSITE
     /* Interface Association Descriptor */
@@ -117,13 +117,13 @@ const static char* _ustring[] =
 };
 
 ALIGN(4)
-struct usb_os_proerty winusb_proerty[] = 
+struct usb_os_proerty winusb_proerty[] =
 {
     USB_OS_PROPERTY_DESC(USB_OS_PROPERTY_TYPE_REG_SZ,"DeviceInterfaceGUID",RT_WINUSB_GUID),
 };
 
 ALIGN(4)
-struct usb_os_function_comp_id_descriptor winusb_func_comp_id_desc = 
+struct usb_os_function_comp_id_descriptor winusb_func_comp_id_desc =
 {
     .bFirstInterfaceNumber = USB_DYNAMIC,
     .reserved1          = 0x01,
@@ -155,7 +155,7 @@ static ufunction_t cmd_func = RT_NULL;
 static rt_err_t _ep0_cmd_handler(udevice_t device, rt_size_t size)
 {
     winusb_device_t winusb_device;
-    
+
     if(cmd_func != RT_NULL)
     {
         winusb_device = (winusb_device_t)cmd_func->user_data;
@@ -191,7 +191,7 @@ static rt_err_t _interface_handler(ufunction_t func, ureq_t setup)
         _ep0_cmd_read(func, setup);
         break;
     }
-    
+
     return RT_EOK;
 }
 static rt_err_t _function_enable(ufunction_t func)
@@ -291,7 +291,7 @@ static rt_err_t rt_usb_winusb_init(ufunction_t func)
 
     winusb_device->parent.user_data = func;
 
-    
+
     return rt_device_register(&winusb_device->parent, "winusb", RT_DEVICE_FLAG_RDWR);
 }
 
@@ -352,7 +352,7 @@ ufunction_t rt_usbd_function_winusb_create(udevice_t device)
     return func;
 }
 
-struct udclass winusb_class = 
+struct udclass winusb_class =
 {
     .rt_usbd_function_create = rt_usbd_function_winusb_create
 };
diff --git a/components/drivers/usb/usbdevice/class/winusb.h b/components/drivers/usb/usbdevice/class/winusb.h
index b5f87b4e56..43fec34b6a 100644
--- a/components/drivers/usb/usbdevice/class/winusb.h
+++ b/components/drivers/usb/usbdevice/class/winusb.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/usb/usbdevice/core/usbdevice.c b/components/drivers/usb/usbdevice/core/usbdevice.c
index 2455bd8017..0891c0bd26 100644
--- a/components/drivers/usb/usbdevice/core/usbdevice.c
+++ b/components/drivers/usb/usbdevice/core/usbdevice.c
@@ -1,9 +1,9 @@
 /*
  * File      : hid.c
- * COPYRIGHT (C) 2008 - 2018, RT-Thread Development Team
+ * COPYRIGHT (C) 2006 - 2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- * 
+ *
  * Change Logs:
  * Date           Author       Notes
  * 2012-10-02     Yi Qiu       first version
@@ -62,7 +62,7 @@ static struct usb_qualifier_descriptor dev_qualifier =
 };
 #endif
 
-struct usb_os_comp_id_descriptor usb_comp_id_desc = 
+struct usb_os_comp_id_descriptor usb_comp_id_desc =
 {
     //head section
     {
diff --git a/components/drivers/usb/usbdevice/core/usbdevice_core.c b/components/drivers/usb/usbdevice/core/usbdevice_core.c
index ef569d7bf2..fd205ad37f 100644
--- a/components/drivers/usb/usbdevice/core/usbdevice_core.c
+++ b/components/drivers/usb/usbdevice/core/usbdevice_core.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -238,7 +238,7 @@ static rt_err_t _get_interface(struct udevice* device, ureq_t setup)
     rt_uint8_t value;
     uintf_t intf;
     ufunction_t func;
-    
+
     /* parameter check */
     RT_ASSERT(device != RT_NULL);
     RT_ASSERT(setup != RT_NULL);
@@ -262,7 +262,7 @@ static rt_err_t _get_interface(struct udevice* device, ureq_t setup)
     {
         intf->handler(func, setup);
     }
-    
+
     return RT_EOK;
 }
 
@@ -293,7 +293,7 @@ static rt_err_t _set_interface(struct udevice* device, ureq_t setup)
         rt_usbd_ep0_set_stall(device);
         return -RT_ERROR;
     }
-        
+
     /* find the specified interface */
     intf = rt_usbd_find_interface(device, setup->wIndex & 0xFF, &func);
 
@@ -309,12 +309,12 @@ static rt_err_t _set_interface(struct udevice* device, ureq_t setup)
         dcd_ep_enable(device->dcd, ep);
     }
     dcd_ep0_send_status(device->dcd);
-    
+
     if (intf->handler)
     {
         intf->handler(func, setup);
     }
-    
+
     return RT_EOK;
 }
 
@@ -336,7 +336,7 @@ static rt_err_t _get_config(struct udevice* device, ureq_t setup)
     RT_ASSERT(device->curr_cfg != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_get_config\n"));
-    
+
     if (device->state == USB_STATE_CONFIGURED)
     {
         /* get current configuration */
@@ -443,7 +443,7 @@ static rt_err_t _set_address(struct udevice* device, ureq_t setup)
     dcd_ep0_send_status(device->dcd);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("_set_address\n"));
-    
+
     device->state = USB_STATE_ADDRESS;
 
     return RT_EOK;
@@ -479,7 +479,7 @@ static rt_err_t _request_interface(struct udevice* device, ureq_t setup)
     {
         ret = -RT_ERROR;
     }
-    
+
     return ret;
 }
 
@@ -564,9 +564,9 @@ static rt_err_t _standard_request(struct udevice* device, ureq_t setup)
         case USB_REQ_GET_STATUS:
         {
             uep_t ep;
-        
+
             ep = rt_usbd_find_endpoint(device, RT_NULL, setup->wIndex);
-            value = ep->stalled;        
+            value = ep->stalled;
             rt_usbd_ep0_write(device, &value, 2);
         }
         break;
@@ -581,13 +581,13 @@ static rt_err_t _standard_request(struct udevice* device, ureq_t setup)
             {
                 rt_usbd_clear_feature(device, setup->wValue, setup->wIndex);
                 dcd_ep0_send_status(dcd);
-                ep->stalled = RT_FALSE;  
+                ep->stalled = RT_FALSE;
 
                 for (node = ep->request_list.next; node != &ep->request_list; node = node->next)
                 {
-                    req = (uio_request_t)rt_list_entry(node, struct uio_request, list);                    
+                    req = (uio_request_t)rt_list_entry(node, struct uio_request, list);
                     rt_usbd_io_request(device, ep, req);
-                    RT_DEBUG_LOG(RT_DEBUG_USB, ("fired a request\n"));                    
+                    RT_DEBUG_LOG(RT_DEBUG_USB, ("fired a request\n"));
                 }
 
                 rt_list_init(&ep->request_list);
@@ -601,10 +601,10 @@ static rt_err_t _standard_request(struct udevice* device, ureq_t setup)
             if(USB_EP_HALT == setup->wValue)
             {
                 ep = rt_usbd_find_endpoint(device, RT_NULL, setup->wIndex);
-                ep->stalled = RT_TRUE;            
+                ep->stalled = RT_TRUE;
                 rt_usbd_set_feature(device, setup->wValue, setup->wIndex);
                 dcd_ep0_send_status(dcd);
-            }    
+            }
         }
         break;
         case USB_REQ_SYNCH_FRAME:
@@ -698,7 +698,7 @@ static rt_err_t _vendor_request(udevice_t device, ureq_t setup)
                 {
                     rt_uint8_t * pusb_comp_id_desc;
                     rt_list_t *p;
-                    usb_comp_id_desc_size = sizeof(struct usb_os_header_comp_id_descriptor) + 
+                    usb_comp_id_desc_size = sizeof(struct usb_os_header_comp_id_descriptor) +
                     (sizeof(struct usb_os_function_comp_id_descriptor)-sizeof(rt_list_t))*rt_list_len(&device->os_comp_id_desc->func_desc);
 
                     usb_comp_id_desc = (rt_uint8_t *)rt_malloc(usb_comp_id_desc_size);
@@ -707,7 +707,7 @@ static rt_err_t _vendor_request(udevice_t device, ureq_t setup)
                     pusb_comp_id_desc = usb_comp_id_desc;
                     rt_memcpy((void *)pusb_comp_id_desc,(void *)&device->os_comp_id_desc->head_desc,sizeof(struct usb_os_header_comp_id_descriptor));
                     pusb_comp_id_desc += sizeof(struct usb_os_header_comp_id_descriptor);
-                    
+
                     for (p = device->os_comp_id_desc->func_desc.next; p != &device->os_comp_id_desc->func_desc; p = p->next)
                     {
                         func_comp_id_desc = rt_list_entry(p,struct usb_os_function_comp_id_descriptor,list);
@@ -726,7 +726,7 @@ static rt_err_t _vendor_request(udevice_t device, ureq_t setup)
                 }
                 break;
         }
-            
+
         break;
     }
     return RT_EOK;
@@ -784,7 +784,7 @@ static rt_err_t _setup_request(udevice_t device, ureq_t setup)
 /**
  * This function will hanle data notify event.
  *
- * @param device the usb device object. 
+ * @param device the usb device object.
  * @param ep_msg the endpoint message.
  *
  * @return RT_EOK.
@@ -794,18 +794,18 @@ static rt_err_t _data_notify(udevice_t device, struct ep_msg* ep_msg)
     uep_t ep;
     ufunction_t func;
     rt_size_t size = 0;
-    
+
     RT_ASSERT(device != RT_NULL);
     RT_ASSERT(ep_msg != RT_NULL);
-    
+
     if (device->state != USB_STATE_CONFIGURED)
     {
         return -RT_ERROR;
     }
-    
+
     ep = rt_usbd_find_endpoint(device, &func, ep_msg->ep_addr);
     if(ep == RT_NULL)
-    {        
+    {
         rt_kprintf("invalid endpoint\n");
         return -RT_ERROR;
     }
@@ -817,7 +817,7 @@ static rt_err_t _data_notify(udevice_t device, struct ep_msg* ep_msg)
         {
             dcd_ep_write(device->dcd, EP_ADDRESS(ep), ep->request.buffer, EP_MAXPACKET(ep));
             ep->request.remain_size -= EP_MAXPACKET(ep);
-            ep->request.buffer += EP_MAXPACKET(ep);     
+            ep->request.buffer += EP_MAXPACKET(ep);
         }
         else if(ep->request.remain_size > 0)
         {
@@ -834,9 +834,9 @@ static rt_err_t _data_notify(udevice_t device, struct ep_msg* ep_msg)
         size = ep_msg->size;
         if(ep->request.remain_size == 0)
         {
-            return RT_EOK;            
+            return RT_EOK;
         }
-            
+
         if(size == 0)
         {
             size = dcd_ep_read(device->dcd, EP_ADDRESS(ep), ep->request.buffer);
@@ -865,9 +865,9 @@ static rt_err_t _ep0_out_notify(udevice_t device, struct ep_msg* ep_msg)
 {
     uep_t ep0;
     rt_size_t size;
-    
+
     RT_ASSERT(device != RT_NULL);
-    RT_ASSERT(ep_msg != RT_NULL);    
+    RT_ASSERT(ep_msg != RT_NULL);
     RT_ASSERT(device->dcd != RT_NULL);
 
     ep0 = &device->dcd->ep0;
@@ -875,18 +875,18 @@ static rt_err_t _ep0_out_notify(udevice_t device, struct ep_msg* ep_msg)
 
     if(ep0->request.remain_size == 0)
     {
-        return RT_EOK;            
-    }    
+        return RT_EOK;
+    }
     if(size == 0)
     {
         size = dcd_ep_read(device->dcd, EP0_OUT_ADDR, ep0->request.buffer);
         if(size == 0)
         {
             return RT_EOK;
-        }        
+        }
     }
 
-    ep0->request.remain_size -= size; 
+    ep0->request.remain_size -= size;
     ep0->request.buffer += size;
     if(ep0->request.remain_size == 0)
     {
@@ -894,7 +894,7 @@ static rt_err_t _ep0_out_notify(udevice_t device, struct ep_msg* ep_msg)
         if(ep0->rx_indicate != RT_NULL)
         {
             ep0->rx_indicate(device, size);
-        }        
+        }
     }
     else
     {
@@ -959,10 +959,10 @@ static rt_err_t _stop_notify(udevice_t device)
 static rt_size_t rt_usbd_ep_write(udevice_t device, uep_t ep, void *buffer, rt_size_t size)
 {
     rt_uint16_t maxpacket;
-        
-    RT_ASSERT(device != RT_NULL);    
+
+    RT_ASSERT(device != RT_NULL);
     RT_ASSERT(device->dcd != RT_NULL);
-    RT_ASSERT(ep != RT_NULL);    
+    RT_ASSERT(ep != RT_NULL);
 
     rt_enter_critical();
     maxpacket = EP_MAXPACKET(ep);
@@ -970,11 +970,11 @@ static rt_size_t rt_usbd_ep_write(udevice_t device, uep_t ep, void *buffer, rt_s
     {
         dcd_ep_write(device->dcd, EP_ADDRESS(ep), ep->request.buffer, maxpacket);
         ep->request.remain_size -= maxpacket;
-        ep->request.buffer += maxpacket;    
+        ep->request.buffer += maxpacket;
     }
     else
     {
-        dcd_ep_write(device->dcd, EP_ADDRESS(ep), ep->request.buffer, 
+        dcd_ep_write(device->dcd, EP_ADDRESS(ep), ep->request.buffer,
             ep->request.remain_size);
         ep->request.remain_size = 0;
     }
@@ -984,9 +984,9 @@ static rt_size_t rt_usbd_ep_write(udevice_t device, uep_t ep, void *buffer, rt_s
 
 static rt_size_t rt_usbd_ep_read_prepare(udevice_t device, uep_t ep, void *buffer, rt_size_t size)
 {
-    RT_ASSERT(device != RT_NULL);	
+    RT_ASSERT(device != RT_NULL);
     RT_ASSERT(device->dcd != RT_NULL);
-    RT_ASSERT(ep != RT_NULL);    
+    RT_ASSERT(ep != RT_NULL);
     RT_ASSERT(buffer != RT_NULL);
     RT_ASSERT(ep->ep_desc != RT_NULL);
 
@@ -1705,7 +1705,7 @@ rt_err_t rt_usbd_set_config(udevice_t device, rt_uint8_t value)
     device->curr_cfg = cfg;
 
     dcd_set_config(device->dcd, value);
-    
+
     return RT_TRUE;
 }
 
@@ -1713,7 +1713,7 @@ rt_err_t rt_usbd_set_config(udevice_t device, rt_uint8_t value)
  * This function will bRequest an IO transaction.
  *
  * @param device the usb device object.
- * @param ep the endpoint object. 
+ * @param ep the endpoint object.
  * @param req IO bRequest.
  *
  * @return RT_EOK.
@@ -1721,7 +1721,7 @@ rt_err_t rt_usbd_set_config(udevice_t device, rt_uint8_t value)
 rt_size_t rt_usbd_io_request(udevice_t device, uep_t ep, uio_request_t req)
 {
     rt_size_t size = 0;
-    
+
     RT_ASSERT(device != RT_NULL);
     RT_ASSERT(req != RT_NULL);
 
@@ -1747,7 +1747,7 @@ rt_size_t rt_usbd_io_request(udevice_t device, uep_t ep, uio_request_t req)
     {
         rt_list_insert_before(&ep->request_list, &req->list);
         RT_DEBUG_LOG(RT_DEBUG_USB, ("suspend a request\n"));
-    }            
+    }
 
     return size;
 }
@@ -1770,10 +1770,10 @@ rt_err_t rt_usbd_set_feature(udevice_t device, rt_uint16_t value, rt_uint16_t in
     }
     else if (value == USB_FEATURE_ENDPOINT_HALT)
     {
-        RT_DEBUG_LOG(RT_DEBUG_USB, ("set feature stall\n"));    
+        RT_DEBUG_LOG(RT_DEBUG_USB, ("set feature stall\n"));
         dcd_ep_set_stall(device->dcd, (rt_uint32_t)(index & 0xFF));
     }
-    
+
     return RT_EOK;
 }
 
@@ -1798,38 +1798,38 @@ rt_err_t rt_usbd_clear_feature(udevice_t device, rt_uint16_t value, rt_uint16_t
         RT_DEBUG_LOG(RT_DEBUG_USB, ("clear feature stall\n"));
         dcd_ep_clear_stall(device->dcd, (rt_uint32_t)(index & 0xFF));
     }
-    
+
     return RT_EOK;
 }
 
 rt_err_t rt_usbd_ep0_set_stall(udevice_t device)
 {
     RT_ASSERT(device != RT_NULL);
-    
+
     return dcd_ep_set_stall(device->dcd, 0);
 }
 
 rt_err_t rt_usbd_ep0_clear_stall(udevice_t device)
 {
     RT_ASSERT(device != RT_NULL);
-    
+
     return dcd_ep_clear_stall(device->dcd, 0);
 }
 
 rt_err_t rt_usbd_ep_set_stall(udevice_t device, uep_t ep)
 {
     rt_err_t ret;
-    
+
     RT_ASSERT(device != RT_NULL);
     RT_ASSERT(ep != RT_NULL);
-    RT_ASSERT(ep->ep_desc != RT_NULL);  
+    RT_ASSERT(ep->ep_desc != RT_NULL);
 
     ret = dcd_ep_set_stall(device->dcd, EP_ADDRESS(ep));
     if(ret == RT_EOK)
     {
         ep->stalled = RT_TRUE;
     }
-    
+
     return ret;
 }
 
@@ -1846,44 +1846,44 @@ rt_err_t rt_usbd_ep_clear_stall(udevice_t device, uep_t ep)
     {
         ep->stalled = RT_FALSE;
     }
-    
+
     return ret;
 }
 
 static rt_err_t rt_usbd_ep_assign(udevice_t device, uep_t ep)
 {
     int i = 0;
-    
+
     RT_ASSERT(device != RT_NULL);
-    RT_ASSERT(device->dcd != RT_NULL);    
-    RT_ASSERT(device->dcd->ep_pool != RT_NULL);        
+    RT_ASSERT(device->dcd != RT_NULL);
+    RT_ASSERT(device->dcd->ep_pool != RT_NULL);
     RT_ASSERT(ep != RT_NULL);
     RT_ASSERT(ep->ep_desc != RT_NULL);
 
     while(device->dcd->ep_pool[i].addr != 0xFF)
     {
-        if(device->dcd->ep_pool[i].status == ID_UNASSIGNED && 
+        if(device->dcd->ep_pool[i].status == ID_UNASSIGNED &&
             ep->ep_desc->bmAttributes == device->dcd->ep_pool[i].type && (EP_ADDRESS(ep) & 0x80) == device->dcd->ep_pool[i].dir)
         {
             EP_ADDRESS(ep) |= device->dcd->ep_pool[i].addr;
             ep->id = &device->dcd->ep_pool[i];
             device->dcd->ep_pool[i].status = ID_ASSIGNED;
 
-            RT_DEBUG_LOG(RT_DEBUG_USB, ("assigned %d\n", device->dcd->ep_pool[i].addr));  
+            RT_DEBUG_LOG(RT_DEBUG_USB, ("assigned %d\n", device->dcd->ep_pool[i].addr));
             return RT_EOK;
         }
-        
+
         i++;
     }
-    
+
     return -RT_ERROR;
 }
 
 rt_err_t rt_usbd_ep_unassign(udevice_t device, uep_t ep)
 {
     RT_ASSERT(device != RT_NULL);
-    RT_ASSERT(device->dcd != RT_NULL);    
-    RT_ASSERT(device->dcd->ep_pool != RT_NULL);        
+    RT_ASSERT(device->dcd != RT_NULL);
+    RT_ASSERT(device->dcd->ep_pool != RT_NULL);
     RT_ASSERT(ep != RT_NULL);
     RT_ASSERT(ep->ep_desc != RT_NULL);
 
@@ -1911,8 +1911,8 @@ rt_err_t rt_usbd_ep0_setup_handler(udcd_t dcd, struct urequest* setup)
     else
     {
         rt_memcpy((void*)&msg.content.setup, (void*)setup, sizeof(struct urequest));
-    }    
-    
+    }
+
     msg.type = USB_MSG_SETUP_NOTIFY;
     msg.dcd = dcd;
     rt_usbd_event_signal(&msg);
@@ -2011,7 +2011,7 @@ rt_err_t rt_usbd_reset_handler(udcd_t dcd)
     struct udev_msg msg;
 
     RT_ASSERT(dcd != RT_NULL);
-    
+
     msg.type = USB_MSG_RESET;
     msg.dcd = dcd;
     rt_usbd_event_signal(&msg);
@@ -2024,7 +2024,7 @@ rt_err_t rt_usbd_connect_handler(udcd_t dcd)
     struct udev_msg msg;
 
     RT_ASSERT(dcd != RT_NULL);
-    
+
     msg.type = USB_MSG_PLUG_IN;
     msg.dcd = dcd;
     rt_usbd_event_signal(&msg);
@@ -2037,7 +2037,7 @@ rt_err_t rt_usbd_disconnect_handler(udcd_t dcd)
     struct udev_msg msg;
 
     RT_ASSERT(dcd != RT_NULL);
-    
+
     msg.type = USB_MSG_PLUG_OUT;
     msg.dcd = dcd;
     rt_usbd_event_signal(&msg);
@@ -2050,7 +2050,7 @@ rt_err_t rt_usbd_sof_handler(udcd_t dcd)
     struct udev_msg msg;
 
     RT_ASSERT(dcd != RT_NULL);
-    
+
     msg.type = USB_MSG_SOF;
     msg.dcd = dcd;
     rt_usbd_event_signal(&msg);
@@ -2063,7 +2063,7 @@ rt_size_t rt_usbd_ep0_write(udevice_t device, void *buffer, rt_size_t size)
     uep_t ep0;
     rt_size_t sent_size = 0;
 
-    RT_ASSERT(device != RT_NULL);    
+    RT_ASSERT(device != RT_NULL);
     RT_ASSERT(device->dcd != RT_NULL);
     RT_ASSERT(buffer != RT_NULL);
     RT_ASSERT(size > 0);
@@ -2085,7 +2085,7 @@ rt_size_t rt_usbd_ep0_write(udevice_t device, void *buffer, rt_size_t size)
     return dcd_ep_write(device->dcd, EP0_IN_ADDR, ep0->request.buffer, sent_size);
 }
 
-rt_size_t rt_usbd_ep0_read(udevice_t device, void *buffer, rt_size_t size, 
+rt_size_t rt_usbd_ep0_read(udevice_t device, void *buffer, rt_size_t size,
     rt_err_t (*rx_ind)(udevice_t device, rt_size_t size))
 {
     uep_t ep0;
@@ -2096,7 +2096,7 @@ rt_size_t rt_usbd_ep0_read(udevice_t device, void *buffer, rt_size_t size,
     RT_ASSERT(buffer != RT_NULL);
 
     ep0 = &device->dcd->ep0;
-    ep0->request.buffer = (rt_uint8_t *)buffer;    
+    ep0->request.buffer = (rt_uint8_t *)buffer;
     ep0->request.remain_size = size;
     ep0->rx_indicate = rx_ind;
     if(size >= ep0->id->maxpacket)
@@ -2143,7 +2143,7 @@ static void rt_usbd_thread_entry(void* parameter)
         }
 
         RT_DEBUG_LOG(RT_DEBUG_USB, ("message type %d\n", msg.type));
-        
+
         switch (msg.type)
         {
         case USB_MSG_SOF:
@@ -2160,7 +2160,7 @@ static void rt_usbd_thread_entry(void* parameter)
         case USB_MSG_EP0_OUT:
             _ep0_out_notify(device, &msg.content.ep_msg);
             break;
-        case USB_MSG_RESET:            
+        case USB_MSG_RESET:
             RT_DEBUG_LOG(RT_DEBUG_USB, ("reset %d\n", device->state));
             if (device->state == USB_STATE_ADDRESS || device->state == USB_STATE_CONFIGURED)
                 _stop_notify(device);
@@ -2170,7 +2170,7 @@ static void rt_usbd_thread_entry(void* parameter)
             device->state = USB_STATE_ATTACHED;
             break;
         case USB_MSG_PLUG_OUT:
-            device->state = USB_STATE_NOTATTACHED;    
+            device->state = USB_STATE_NOTATTACHED;
             _stop_notify(device);
             break;
         default:
diff --git a/components/drivers/usb/usbhost/class/adk.c b/components/drivers/usb/usbhost/class/adk.c
index 2425de7bba..492a2f9bb7 100644
--- a/components/drivers/usb/usbhost/class/adk.c
+++ b/components/drivers/usb/usbhost/class/adk.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/usb/usbhost/class/adk.h b/components/drivers/usb/usbhost/class/adk.h
index c582ad7f17..aebe7de705 100644
--- a/components/drivers/usb/usbhost/class/adk.h
+++ b/components/drivers/usb/usbhost/class/adk.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -19,7 +19,7 @@ struct uadkinst
     upipe_t pipe_out;
 
     struct rt_device device;
-};    
+};
 typedef struct uadkinst* uadk_t;
 
 #define USB_ACCESSORY_VENDOR_ID         0x18D1
diff --git a/components/drivers/usb/usbhost/class/hid.c b/components/drivers/usb/usbhost/class/hid.c
index b097b01679..eaf413a2a6 100644
--- a/components/drivers/usb/usbhost/class/hid.c
+++ b/components/drivers/usb/usbhost/class/hid.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -24,22 +24,22 @@ static rt_list_t _protocal_list;
  * @param intf the interface instance.
  * @duration the idle period of requesting data.
  * @report_id the report id
- * 
+ *
  * @return the error code, RT_EOK on successfully.
 */
 rt_err_t rt_usbh_hid_set_idle(struct uhintf* intf, int duration, int report_id)
 {
     struct urequest setup;
-    struct uinstance* device;    
+    struct uinstance* device;
     int timeout = USB_TIMEOUT_BASIC;
-        
+
     /* parameter check */
     RT_ASSERT(intf != RT_NULL);
     RT_ASSERT(intf->device != RT_NULL);
 
     device = intf->device;
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS |
         USB_REQ_TYPE_INTERFACE;
     setup.bRequest = USB_REQ_SET_IDLE;
     setup.wIndex = 0;
@@ -49,7 +49,7 @@ rt_err_t rt_usbh_hid_set_idle(struct uhintf* intf, int duration, int report_id)
     if (rt_usb_hcd_setup_xfer(device->hcd, device->pipe_ep0_out, &setup, timeout) == 8)
         return RT_EOK;
     else
-        return -RT_FALSE;    
+        return -RT_FALSE;
 }
 
 /**
@@ -58,23 +58,23 @@ rt_err_t rt_usbh_hid_set_idle(struct uhintf* intf, int duration, int report_id)
  * @param intf the interface instance.
  * @buffer the data buffer to save usb report descriptor.
  * @param nbytes the size of buffer
- * 
+ *
  * @return the error code, RT_EOK on successfully.
 */
-rt_err_t rt_usbh_hid_get_report(struct uhintf* intf, rt_uint8_t type, 
+rt_err_t rt_usbh_hid_get_report(struct uhintf* intf, rt_uint8_t type,
     rt_uint8_t id, rt_uint8_t *buffer, rt_size_t size)
 {
     struct urequest setup;
     struct uinstance* device;
     int timeout = USB_TIMEOUT_BASIC;
-        
+
     /* parameter check */
     RT_ASSERT(intf != RT_NULL);
     RT_ASSERT(intf->device != RT_NULL);
 
     device = intf->device;
 
-    setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_CLASS | 
+    setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_CLASS |
         USB_REQ_TYPE_INTERFACE;
     setup.bRequest = USB_REQ_GET_REPORT;
     setup.wIndex = intf->intf_desc->bInterfaceNumber;
@@ -93,7 +93,7 @@ rt_err_t rt_usbh_hid_get_report(struct uhintf* intf, rt_uint8_t type,
     }
     else
         return -RT_FALSE;
-    return -RT_FALSE; 
+    return -RT_FALSE;
 }
 
 /**
@@ -102,22 +102,22 @@ rt_err_t rt_usbh_hid_get_report(struct uhintf* intf, rt_uint8_t type,
  * @param intf the interface instance.
  * @buffer the data buffer to save usb report descriptor.
  * @param nbytes the size of buffer
- * 
+ *
  * @return the error code, RT_EOK on successfully.
 */
 rt_err_t rt_usbh_hid_set_report(struct uhintf* intf, rt_uint8_t *buffer, rt_size_t size)
 {
     struct urequest setup;
-    struct uinstance* device;        
+    struct uinstance* device;
     int timeout = USB_TIMEOUT_BASIC;
-        
+
     /* parameter check */
     RT_ASSERT(intf != RT_NULL);
     RT_ASSERT(intf->device != RT_NULL);
-    
+
     device = intf->device;
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS |
         USB_REQ_TYPE_INTERFACE;
     setup.bRequest = USB_REQ_SET_REPORT;
     setup.wIndex = intf->intf_desc->bInterfaceNumber;
@@ -127,7 +127,7 @@ rt_err_t rt_usbh_hid_set_report(struct uhintf* intf, rt_uint8_t *buffer, rt_size
     if (rt_usb_hcd_setup_xfer(device->hcd, device->pipe_ep0_out, &setup, timeout) == 8)
         return RT_EOK;
     else
-        return -RT_FALSE;    
+        return -RT_FALSE;
 }
 
 /**
@@ -135,7 +135,7 @@ rt_err_t rt_usbh_hid_set_report(struct uhintf* intf, rt_uint8_t *buffer, rt_size
  *
  * @param intf the interface instance.
  * @param protocol the protocol id.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_hid_set_protocal(struct uhintf* intf, int protocol)
@@ -143,14 +143,14 @@ rt_err_t rt_usbh_hid_set_protocal(struct uhintf* intf, int protocol)
     struct urequest setup;
     struct uinstance* device;
     int timeout = USB_TIMEOUT_BASIC;
-        
+
     /* parameter check */
     RT_ASSERT(intf != RT_NULL);
     RT_ASSERT(intf->device != RT_NULL);
-    
+
     device = intf->device;
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS |
         USB_REQ_TYPE_INTERFACE;
     setup.bRequest = USB_REQ_SET_PROTOCOL;
     setup.wIndex = 0;
@@ -160,33 +160,33 @@ rt_err_t rt_usbh_hid_set_protocal(struct uhintf* intf, int protocol)
     if (rt_usb_hcd_setup_xfer(device->hcd, device->pipe_ep0_out, &setup, timeout) == 8)
         return RT_EOK;
     else
-        return -RT_FALSE;    
+        return -RT_FALSE;
 }
 
 /**
- * This function will do USB_REQ_GET_DESCRIPTOR request for the device instance 
+ * This function will do USB_REQ_GET_DESCRIPTOR request for the device instance
  * to set feature of the hub port.
  *
  * @param intf the interface instance.
  * @buffer the data buffer to save usb report descriptor.
  * @param nbytes the size of buffer
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-rt_err_t rt_usbh_hid_get_report_descriptor(struct uhintf* intf, 
+rt_err_t rt_usbh_hid_get_report_descriptor(struct uhintf* intf,
     rt_uint8_t *buffer, rt_size_t size)
 {
     struct urequest setup;
-    struct uinstance* device;    
+    struct uinstance* device;
     int timeout = USB_TIMEOUT_BASIC;
-        
+
     /* parameter check */
     RT_ASSERT(intf != RT_NULL);
     RT_ASSERT(intf->device != RT_NULL);
-    
+
     device = intf->device;
 
-    setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_STANDARD| 
+    setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_STANDARD|
         USB_REQ_TYPE_INTERFACE;
     setup.bRequest = USB_REQ_GET_DESCRIPTOR;
     setup.wIndex = 0;
@@ -212,7 +212,7 @@ rt_err_t rt_usbh_hid_get_report_descriptor(struct uhintf* intf,
  * This function will register specified hid protocal to protocal list
  *
  * @param protocal the specified protocal.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_hid_protocal_register(uprotocal_t protocal)
@@ -223,26 +223,26 @@ rt_err_t rt_usbh_hid_protocal_register(uprotocal_t protocal)
 
     /* insert class driver into driver list */
     rt_list_insert_after(&_protocal_list, &(protocal->list));
-    
-    return RT_EOK;    
+
+    return RT_EOK;
 }
 
 /**
  * This function is the callback function of hid's int endpoint, it is invoked when data comes.
  *
  * @param context the context of the callback function.
- * 
+ *
  * @return none.
  */
 static void rt_usbh_hid_callback(void* context)
 {
-    upipe_t pipe; 
+    upipe_t pipe;
     struct uhid* hid;
     int timeout = USB_TIMEOUT_LONG;
 
     /* parameter check */
     RT_ASSERT(context != RT_NULL);
-    
+
     pipe = (upipe_t)context;
     hid = (struct uhid*)((struct uhintf*)pipe->inst)->user_data;
 
@@ -252,7 +252,7 @@ static void rt_usbh_hid_callback(void* context)
     /* parameter check */
      RT_ASSERT(((struct uhintf*)pipe->inst)->device->hcd != RT_NULL);
 
-    rt_usb_hcd_pipe_xfer(((struct uhintf*)pipe->inst)->device->hcd, pipe, 
+    rt_usb_hcd_pipe_xfer(((struct uhintf*)pipe->inst)->device->hcd, pipe,
         hid->buffer, pipe->ep.wMaxPacketSize, timeout);
 }
 
@@ -260,7 +260,7 @@ static void rt_usbh_hid_callback(void* context)
  * This function will find specified hid protocal from protocal list
  *
  * @param pro_id the protocal id.
- * 
+ *
  * @return the found protocal or RT_NULL if there is no this protocal.
  */
 static uprotocal_t rt_usbh_hid_protocal_find(int pro_id)
@@ -270,7 +270,7 @@ static uprotocal_t rt_usbh_hid_protocal_find(int pro_id)
     /* try to find protocal object */
     for (node = _protocal_list.next; node != &_protocal_list; node = node->next)
     {
-        uprotocal_t protocal = 
+        uprotocal_t protocal =
             (uprotocal_t)rt_list_entry(node, struct uprotocal, list);
         if (protocal->pro_id == pro_id) return protocal;
     }
@@ -284,16 +284,16 @@ static uprotocal_t rt_usbh_hid_protocal_find(int pro_id)
  *  as a hid class device, it will continue the enumulate process.
  *
  * @param arg the argument.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 static rt_err_t rt_usbh_hid_enable(void* arg)
 {
     int i = 0, pro_id;
-    uprotocal_t protocal;    
+    uprotocal_t protocal;
     struct uhid* hid;
     struct uhintf* intf = (struct uhintf*)arg;
-    
+
     /* parameter check */
     if(intf == RT_NULL)
     {
@@ -304,43 +304,43 @@ static rt_err_t rt_usbh_hid_enable(void* arg)
     pro_id = intf->intf_desc->bInterfaceProtocol;
 
     RT_DEBUG_LOG(RT_DEBUG_USB,
-                 ("HID device enable, protocal id %d\n", pro_id));   
+                 ("HID device enable, protocal id %d\n", pro_id));
 
-    protocal = rt_usbh_hid_protocal_find(pro_id);    
+    protocal = rt_usbh_hid_protocal_find(pro_id);
     if(protocal == RT_NULL)
     {
         rt_kprintf("can't find hid protocal %d\n", pro_id);
-        intf->user_data = RT_NULL;        
+        intf->user_data = RT_NULL;
         return -RT_ERROR;
     }
-    
+
     hid = rt_malloc(sizeof(struct uhid));
     RT_ASSERT(hid != RT_NULL);
 
-    /* initilize the data structure */    
+    /* initilize the data structure */
     rt_memset(hid, 0, sizeof(struct uhid));
     intf->user_data = (void*)hid;
     hid->protocal = protocal;
-    
+
     for(i=0; i<intf->intf_desc->bNumEndpoints; i++)
-    {    
+    {
         rt_err_t ret;
         uep_desc_t ep_desc;
 
-        /* get endpoint descriptor */        
+        /* get endpoint descriptor */
         rt_usbh_get_endpoint_descriptor(intf->intf_desc, i, &ep_desc);
         if(ep_desc == RT_NULL)
         {
             rt_kprintf("rt_usbh_get_endpoint_descriptor error\n");
             return -RT_ERROR;
         }
-                
-        if(USB_EP_ATTR(ep_desc->bmAttributes) != USB_EP_ATTR_INT) 
+
+        if(USB_EP_ATTR(ep_desc->bmAttributes) != USB_EP_ATTR_INT)
             continue;
-    
+
         if(!(ep_desc->bEndpointAddress & USB_DIR_IN)) continue;
 
-        ret = rt_usb_hcd_alloc_pipe(intf->device->hcd, &hid->pipe_in, 
+        ret = rt_usb_hcd_alloc_pipe(intf->device->hcd, &hid->pipe_in,
             intf, ep_desc);
         if(ret != RT_EOK) return ret;
     }
@@ -352,11 +352,11 @@ static rt_err_t rt_usbh_hid_enable(void* arg)
 }
 
 /**
- * This function will be invoked when usb device plug out is detected and it would clean 
+ * This function will be invoked when usb device plug out is detected and it would clean
  * and release all hub class related resources.
  *
  * @param arg the argument.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 static rt_err_t rt_usbh_hid_disable(void* arg)
@@ -377,7 +377,7 @@ static rt_err_t rt_usbh_hid_disable(void* arg)
             rt_usb_hcd_free_pipe(intf->device->hcd, hid->pipe_in);
         }
 
-        /* free the hid instance */    
+        /* free the hid instance */
         rt_free(hid);
     }
 
@@ -387,7 +387,7 @@ static rt_err_t rt_usbh_hid_disable(void* arg)
 /**
  * This function will register hid class driver to the usb class driver manager.
  * and it should be invoked in the usb system initialization.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 ucd_t rt_usbh_class_driver_hid(void)
@@ -395,7 +395,7 @@ ucd_t rt_usbh_class_driver_hid(void)
     rt_list_init(&_protocal_list);
 
     hid_driver.class_code = USB_CLASS_HID;
-    
+
     hid_driver.enable = rt_usbh_hid_enable;
     hid_driver.disable = rt_usbh_hid_disable;
 
diff --git a/components/drivers/usb/usbhost/class/hid.h b/components/drivers/usb/usbhost/class/hid.h
index dbef84abbe..19b2b09855 100644
--- a/components/drivers/usb/usbhost/class/hid.h
+++ b/components/drivers/usb/usbhost/class/hid.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -18,7 +18,7 @@ struct uhid
     upipe_t pipe_in;
     rt_uint8_t buffer[8];
     uprotocal_t protocal;
-};    
+};
 typedef struct uhid uhid_t;
 
 #define USB_REQ_GET_REPORT      0x01
@@ -28,7 +28,7 @@ typedef struct uhid uhid_t;
 #define USB_REQ_SET_IDLE        0x0a
 #define USB_REQ_SET_PROTOCOL    0x0b
 
-#define USB_HID_KEYBOARD        1    
+#define USB_HID_KEYBOARD        1
 #define USB_HID_MOUSE            2
 
 rt_err_t rt_usbh_hid_set_idle(struct uhintf* intf, int duration, int report_id);
@@ -38,4 +38,4 @@ rt_err_t rt_usbh_hid_set_protocal(struct uhintf* intf, int protocol);
 rt_err_t rt_usbh_hid_get_report_descriptor(struct uhintf* intf, rt_uint8_t *buffer, rt_size_t size);
 rt_err_t rt_usbh_hid_protocal_register(uprotocal_t protocal);
 
-#endif
\ No newline at end of file
+#endif
diff --git a/components/drivers/usb/usbhost/class/mass.c b/components/drivers/usb/usbhost/class/mass.c
index 20048873f5..abd89a5efc 100644
--- a/components/drivers/usb/usbhost/class/mass.c
+++ b/components/drivers/usb/usbhost/class/mass.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -24,29 +24,29 @@ static struct uclass_driver storage_driver;
  *
  * @param intf the interface instance.
  * @param max_lun the buffer to save max_lun.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 static rt_err_t _pipe_check(struct uhintf* intf, upipe_t pipe)
 {
-    struct uinstance* device;        
+    struct uinstance* device;
     rt_err_t ret;
     ustor_t stor;
-    int size = 0; 
+    int size = 0;
     struct ustorage_csw csw;
 
     if(intf == RT_NULL || pipe == RT_NULL)
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
-    }    
+    }
 
-    /* get usb device instance from the interface instance */    
-    device = intf->device;    
+    /* get usb device instance from the interface instance */
+    device = intf->device;
 
-    /* get storage instance from the interface instance */        
+    /* get storage instance from the interface instance */
     stor = (ustor_t)intf->user_data;
-    
+
     /* check pipe status */
     if(pipe->status == UPIPE_STATUS_OK) return RT_EOK;
 
@@ -58,11 +58,11 @@ static rt_err_t _pipe_check(struct uhintf* intf, upipe_t pipe)
     if(pipe->status == UPIPE_STATUS_STALL)
     {
         /* clear the pipe stall status */
-        ret = rt_usbh_clear_feature(device, pipe->ep.bEndpointAddress, 
+        ret = rt_usbh_clear_feature(device, pipe->ep.bEndpointAddress,
             USB_FEATURE_ENDPOINT_HALT);
         if(ret != RT_EOK) return ret;
     }
-    
+
 
     rt_thread_delay(50);
 
@@ -73,14 +73,14 @@ static rt_err_t _pipe_check(struct uhintf* intf, upipe_t pipe)
     RT_DEBUG_LOG(RT_DEBUG_USB, ("clean storage in pipe stall\n"));
 
     /* it should receive csw after clear the stall feature */
-    size = rt_usb_hcd_pipe_xfer(stor->pipe_in->inst->hcd, 
+    size = rt_usb_hcd_pipe_xfer(stor->pipe_in->inst->hcd,
         stor->pipe_in, &csw, SIZEOF_CSW, 100);
-    if(size != SIZEOF_CSW) 
+    if(size != SIZEOF_CSW)
     {
         rt_kprintf("receive the csw after stall failed\n");
         return -RT_EIO;
     }
-    
+
     return -RT_ERROR;
 }
 
@@ -89,35 +89,35 @@ static rt_err_t _pipe_check(struct uhintf* intf, upipe_t pipe)
  *
  * @param intf the interface instance.
  * @param max_lun the buffer to save max_lun.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-static rt_err_t rt_usb_bulk_only_xfer(struct uhintf* intf, 
+static rt_err_t rt_usb_bulk_only_xfer(struct uhintf* intf,
     ustorage_cbw_t cmd, rt_uint8_t* buffer, int timeout)
 {
     rt_size_t size;
-    rt_err_t ret;    
+    rt_err_t ret;
     upipe_t pipe;
     struct ustorage_csw csw;
     ustor_t stor;
 
-    RT_ASSERT(cmd != RT_NULL);    
+    RT_ASSERT(cmd != RT_NULL);
 
     if(intf == RT_NULL)
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
     }
-    
-    /* get storage instance from the interface instance */    
+
+    /* get storage instance from the interface instance */
     stor = (ustor_t)intf->user_data;
 
     do
     {
         /* send the cbw */
-        size = rt_usb_hcd_pipe_xfer(stor->pipe_out->inst->hcd, stor->pipe_out, 
+        size = rt_usb_hcd_pipe_xfer(stor->pipe_out->inst->hcd, stor->pipe_out,
             cmd, SIZEOF_CBW, timeout);
-        if(size != SIZEOF_CBW) 
+        if(size != SIZEOF_CBW)
         {
             rt_kprintf("CBW size error\n");
             return -RT_EIO;
@@ -126,20 +126,20 @@ static rt_err_t rt_usb_bulk_only_xfer(struct uhintf* intf,
         {
             pipe = (cmd->dflags == CBWFLAGS_DIR_IN) ? stor->pipe_in :
                 stor->pipe_out;
-            size = rt_usb_hcd_pipe_xfer(pipe->inst->hcd, pipe, (void*)buffer, 
+            size = rt_usb_hcd_pipe_xfer(pipe->inst->hcd, pipe, (void*)buffer,
                 cmd->xfer_len, timeout);
             if(size != cmd->xfer_len)
             {
-                rt_kprintf("request size %d, transfer size %d\n", 
+                rt_kprintf("request size %d, transfer size %d\n",
                     cmd->xfer_len, size);
                 break;
-            }    
+            }
         }
-        
+
         /* receive the csw */
-        size = rt_usb_hcd_pipe_xfer(stor->pipe_in->inst->hcd, stor->pipe_in, 
+        size = rt_usb_hcd_pipe_xfer(stor->pipe_in->inst->hcd, stor->pipe_in,
             &csw, SIZEOF_CSW, timeout);
-        if(size != SIZEOF_CSW) 
+        if(size != SIZEOF_CSW)
         {
             rt_kprintf("csw size error\n");
             return -RT_EIO;
@@ -148,12 +148,12 @@ static rt_err_t rt_usb_bulk_only_xfer(struct uhintf* intf,
 
     /* check in pipes status */
     ret = _pipe_check(intf, stor->pipe_in);
-    if(ret != RT_EOK) 
+    if(ret != RT_EOK)
     {
         rt_kprintf("in pipe error\n");
         return ret;
     }
-    
+
     /* check out pipes status */
     ret = _pipe_check(intf, stor->pipe_out);
     if(ret != RT_EOK)
@@ -161,20 +161,20 @@ static rt_err_t rt_usb_bulk_only_xfer(struct uhintf* intf,
         rt_kprintf("out pipe error\n");
         return ret;
     }
-    
+
     /* check csw status */
     if(csw.signature != CSW_SIGNATURE || csw.tag != CBW_TAG_VALUE)
     {
         rt_kprintf("csw signature error\n");
         return -RT_EIO;
     }
-    
+
     if(csw.status != 0)
     {
         //rt_kprintf("csw status error:%d\n",csw.status);
         return -RT_ERROR;
     }
-    
+
     return RT_EOK;
 }
 
@@ -183,12 +183,12 @@ static rt_err_t rt_usb_bulk_only_xfer(struct uhintf* intf,
  *
  * @param intf the interface instance.
  * @param max_lun the buffer to save max_lun.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_storage_get_max_lun(struct uhintf* intf, rt_uint8_t* max_lun)
 {
-    struct uinstance* device;    
+    struct uinstance* device;
     struct urequest setup;
     int timeout = USB_TIMEOUT_BASIC;
 
@@ -196,17 +196,17 @@ rt_err_t rt_usbh_storage_get_max_lun(struct uhintf* intf, rt_uint8_t* max_lun)
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
-    }    
+    }
 
     /* parameter check */
     RT_ASSERT(intf->device != RT_NULL);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_get_max_lun\n"));
 
-    /* get usb device instance from the interface instance */    
-    device = intf->device;    
+    /* get usb device instance from the interface instance */
+    device = intf->device;
 
     /* construct the request */
-    setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_CLASS | 
+    setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_CLASS |
         USB_REQ_TYPE_INTERFACE;
     setup.bRequest = USBREQ_GET_MAX_LUN;
     setup.wValue = intf->intf_desc->bInterfaceNumber;
@@ -233,13 +233,13 @@ rt_err_t rt_usbh_storage_get_max_lun(struct uhintf* intf, rt_uint8_t* max_lun)
  * This function will do USBREQ_MASS_STORAGE_RESET request for the usb interface instance.
  *
  * @param intf the interface instance.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_storage_reset(struct uhintf* intf)
 {
     struct urequest setup;
-    struct uinstance* device;    
+    struct uinstance* device;
     int timeout = USB_TIMEOUT_BASIC;
 
     /* parameter check */
@@ -247,16 +247,16 @@ rt_err_t rt_usbh_storage_reset(struct uhintf* intf)
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
-    }    
+    }
 
     RT_ASSERT(intf->device != RT_NULL);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_reset\n"));
 
-    /* get usb device instance from the interface instance */    
-    device = intf->device;    
+    /* get usb device instance from the interface instance */
+    device = intf->device;
 
     /* construct the request */
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS |
         USB_REQ_TYPE_INTERFACE;
     setup.bRequest = USBREQ_MASS_STORAGE_RESET;
     setup.wIndex = intf->intf_desc->bInterfaceNumber;
@@ -279,12 +279,12 @@ rt_err_t rt_usbh_storage_reset(struct uhintf* intf)
  *
  * @param intf the interface instance.
  * @param buffer the data buffer to save read data
- * @param sector the start sector address to read. 
+ * @param sector the start sector address to read.
  * @param sector the sector count to read.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-rt_err_t rt_usbh_storage_read10(struct uhintf* intf, rt_uint8_t *buffer, 
+rt_err_t rt_usbh_storage_read10(struct uhintf* intf, rt_uint8_t *buffer,
     rt_uint32_t sector, rt_size_t count, int timeout)
 {
     struct ustorage_cbw cmd;
@@ -294,8 +294,8 @@ rt_err_t rt_usbh_storage_read10(struct uhintf* intf, rt_uint8_t *buffer,
     {
         rt_kprintf("interface is not available\n");
         return -RT_EIO;
-    }    
-    
+    }
+
     RT_ASSERT(intf->device != RT_NULL);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_read10\n"));
 
@@ -325,12 +325,12 @@ rt_err_t rt_usbh_storage_read10(struct uhintf* intf, rt_uint8_t *buffer,
  *
  * @param intf the interface instance.
  * @param buffer the data buffer to save write data
- * @param sector the start sector address to write. 
+ * @param sector the start sector address to write.
  * @param sector the sector count to write.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-rt_err_t rt_usbh_storage_write10(struct uhintf* intf, rt_uint8_t *buffer, 
+rt_err_t rt_usbh_storage_write10(struct uhintf* intf, rt_uint8_t *buffer,
     rt_uint32_t sector, rt_size_t count, int timeout)
 {
     struct ustorage_cbw cmd;
@@ -340,8 +340,8 @@ rt_err_t rt_usbh_storage_write10(struct uhintf* intf, rt_uint8_t *buffer,
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
-    }    
-    
+    }
+
     RT_ASSERT(intf->device != RT_NULL);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_write10\n"));
 
@@ -371,7 +371,7 @@ rt_err_t rt_usbh_storage_write10(struct uhintf* intf, rt_uint8_t *buffer,
  *
  * @param intf the interface instance.
  * @param buffer the data buffer to save sense data
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_storage_request_sense(struct uhintf* intf, rt_uint8_t* buffer)
@@ -384,12 +384,12 @@ rt_err_t rt_usbh_storage_request_sense(struct uhintf* intf, rt_uint8_t* buffer)
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
-    }    
-    
+    }
+
     RT_ASSERT(intf->device != RT_NULL);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_request_sense\n"));
 
-    /* construct the command block wrapper */    
+    /* construct the command block wrapper */
     rt_memset(&cmd, 0, sizeof(struct ustorage_cbw));
     cmd.signature = CBW_SIGNATURE;
     cmd.tag = CBW_TAG_VALUE;
@@ -407,7 +407,7 @@ rt_err_t rt_usbh_storage_request_sense(struct uhintf* intf, rt_uint8_t* buffer)
  * This function will execute SCSI_TEST_UNIT_READY command to get unit ready status.
  *
  * @param intf the interface instance.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_storage_test_unit_ready(struct uhintf* intf)
@@ -420,8 +420,8 @@ rt_err_t rt_usbh_storage_test_unit_ready(struct uhintf* intf)
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
-    }    
-    
+    }
+
     RT_ASSERT(intf->device != RT_NULL);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_test_unit_ready\n"));
 
@@ -434,7 +434,7 @@ rt_err_t rt_usbh_storage_test_unit_ready(struct uhintf* intf)
     cmd.lun = 0;
     cmd.cb_len = 12;
     cmd.cb[0] = SCSI_TEST_UNIT_READY;
- 
+
     return rt_usb_bulk_only_xfer(intf, &cmd, RT_NULL, timeout);
 }
 
@@ -443,21 +443,21 @@ rt_err_t rt_usbh_storage_test_unit_ready(struct uhintf* intf)
  *
  * @param intf the interface instance.
  * @param buffer the data buffer to save inquiry data
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_storage_inquiry(struct uhintf* intf, rt_uint8_t* buffer)
 {
     struct ustorage_cbw cmd;
     int timeout = USB_TIMEOUT_LONG;
-    
+
     /* parameter check */
     if(intf == RT_NULL)
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
-    }    
-    
+    }
+
     RT_ASSERT(intf->device != RT_NULL);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_inquiry\n"));
 
@@ -480,7 +480,7 @@ rt_err_t rt_usbh_storage_inquiry(struct uhintf* intf, rt_uint8_t* buffer)
  *
  * @param intf the interface instance.
  * @param buffer the data buffer to save capacity data
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_storage_get_capacity(struct uhintf* intf, rt_uint8_t* buffer)
@@ -493,7 +493,7 @@ rt_err_t rt_usbh_storage_get_capacity(struct uhintf* intf, rt_uint8_t* buffer)
     {
         rt_kprintf("the interface is not available\n");
         return -RT_EIO;
-    }    
+    }
 
     RT_ASSERT(intf->device != RT_NULL);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_get_capacity\n"));
@@ -513,17 +513,17 @@ rt_err_t rt_usbh_storage_get_capacity(struct uhintf* intf, rt_uint8_t* buffer)
 
 /**
  * This function will run mass storage class driver when usb device is detected
- * and identified as a mass storage class device, it will continue to do the enumulate 
+ * and identified as a mass storage class device, it will continue to do the enumulate
  * process.
  *
  * @param arg the argument.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 static rt_err_t rt_usbh_storage_enable(void* arg)
 {
     int i = 0;
-    rt_err_t ret;    
+    rt_err_t ret;
     ustor_t stor;
     struct uhintf* intf = (struct uhintf*)arg;
 
@@ -534,25 +534,25 @@ static rt_err_t rt_usbh_storage_enable(void* arg)
         return -RT_EIO;
     }
 
-    RT_DEBUG_LOG(RT_DEBUG_USB, ("subclass %d, protocal %d\n", 
+    RT_DEBUG_LOG(RT_DEBUG_USB, ("subclass %d, protocal %d\n",
         intf->intf_desc->bInterfaceSubClass,
         intf->intf_desc->bInterfaceProtocol));
-        
+
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_storage_run\n"));
 
     /* only support SCSI subclass and bulk only protocal */
-    
+
     stor = rt_malloc(sizeof(struct ustor));
     RT_ASSERT(stor != RT_NULL);
 
     /* initilize the data structure */
-    rt_memset(stor, 0, sizeof(struct ustor));    
+    rt_memset(stor, 0, sizeof(struct ustor));
     intf->user_data = (void*)stor;
 
     for(i=0; i<intf->intf_desc->bNumEndpoints; i++)
-    {        
+    {
         uep_desc_t ep_desc;
-        
+
         /* get endpoint descriptor from interface descriptor */
         rt_usbh_get_endpoint_descriptor(intf->intf_desc, i, &ep_desc);
         if(ep_desc == RT_NULL)
@@ -560,11 +560,11 @@ static rt_err_t rt_usbh_storage_enable(void* arg)
             rt_kprintf("rt_usb_get_endpoint_descriptor error\n");
             return -RT_ERROR;
         }
-        
-        /* the endpoint type of mass storage class should be BULK */    
+
+        /* the endpoint type of mass storage class should be BULK */
         if((ep_desc->bmAttributes & USB_EP_ATTR_TYPE_MASK) != USB_EP_ATTR_BULK)
             continue;
-        
+
         /* allocate pipes according to the endpoint type */
         if(ep_desc->bEndpointAddress & USB_DIR_IN)
         {
@@ -572,7 +572,7 @@ static rt_err_t rt_usbh_storage_enable(void* arg)
             stor->pipe_in = rt_usb_instance_find_pipe(intf->device,ep_desc->bEndpointAddress);
         }
         else
-        {        
+        {
             /* alloc an output pipe for the storage instance */
             stor->pipe_out = rt_usb_instance_find_pipe(intf->device,ep_desc->bEndpointAddress);
         }
@@ -583,8 +583,8 @@ static rt_err_t rt_usbh_storage_enable(void* arg)
     {
         rt_kprintf("pipe error, unsupported device\n");
         return -RT_ERROR;
-    }    
-    
+    }
+
     /* should implement as callback */
     ret = rt_udisk_run(intf);
     if(ret != RT_EOK) return ret;
@@ -593,11 +593,11 @@ static rt_err_t rt_usbh_storage_enable(void* arg)
 }
 
 /**
- * This function will be invoked when usb device plug out is detected and it would clean 
+ * This function will be invoked when usb device plug out is detected and it would clean
  * and release all mass storage class related resources.
  *
  * @param arg the argument.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 static rt_err_t rt_usbh_storage_disable(void* arg)
@@ -617,7 +617,7 @@ static rt_err_t rt_usbh_storage_disable(void* arg)
 
     rt_udisk_stop(intf);
 
-    
+
     /* free storage instance */
     if(stor != RT_NULL) rt_free(stor);
     return RT_EOK;
@@ -626,13 +626,13 @@ static rt_err_t rt_usbh_storage_disable(void* arg)
 /**
  * This function will register mass storage class driver to the usb class driver manager.
  * and it should be invoked in the usb system initialization.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 ucd_t rt_usbh_class_driver_storage(void)
 {
     storage_driver.class_code = USB_CLASS_MASS_STORAGE;
-    
+
     storage_driver.enable = rt_usbh_storage_enable;
     storage_driver.disable = rt_usbh_storage_disable;
 
diff --git a/components/drivers/usb/usbhost/class/mass.h b/components/drivers/usb/usbhost/class/mass.h
index 770e64a03f..2578fb54c7 100644
--- a/components/drivers/usb/usbhost/class/mass.h
+++ b/components/drivers/usb/usbhost/class/mass.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -30,17 +30,17 @@ struct ustor
     upipe_t pipe_in;
     upipe_t pipe_out;
     rt_uint32_t capicity[2];
-    
+
     struct rt_device dev[MAX_PARTITION_COUNT];
     rt_uint8_t dev_cnt;
-};    
+};
 typedef struct ustor* ustor_t;
 
 rt_err_t rt_usbh_storage_get_max_lun(struct uhintf* intf, rt_uint8_t* max_lun);
 rt_err_t rt_usbh_storage_reset(struct uhintf* intf);
-rt_err_t rt_usbh_storage_read10(struct uhintf* intf, rt_uint8_t *buffer, 
+rt_err_t rt_usbh_storage_read10(struct uhintf* intf, rt_uint8_t *buffer,
     rt_uint32_t sector, rt_size_t count, int timeout);
-rt_err_t rt_usbh_storage_write10(struct uhintf* intf, rt_uint8_t *buffer, 
+rt_err_t rt_usbh_storage_write10(struct uhintf* intf, rt_uint8_t *buffer,
     rt_uint32_t sector, rt_size_t count, int timeout);
 rt_err_t rt_usbh_storage_request_sense(struct uhintf* intf, rt_uint8_t* buffer);
 rt_err_t rt_usbh_storage_test_unit_ready(struct uhintf* intf);
diff --git a/components/drivers/usb/usbhost/class/udisk.c b/components/drivers/usb/usbhost/class/udisk.c
index 6c8030b29a..8be311e657 100644
--- a/components/drivers/usb/usbhost/class/udisk.c
+++ b/components/drivers/usb/usbhost/class/udisk.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/usb/usbhost/class/ukbd.c b/components/drivers/usb/usbhost/class/ukbd.c
index 7d608de259..c89d60cd36 100644
--- a/components/drivers/usb/usbhost/class/ukbd.c
+++ b/components/drivers/usb/usbhost/class/ukbd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -14,13 +14,13 @@
 
 #if defined(RT_USBH_HID) && defined(RT_USBH_HID_KEYBOARD)
 
-static struct uprotocal kbd_protocal; 
+static struct uprotocal kbd_protocal;
 
 static rt_err_t rt_usbh_hid_kbd_callback(void* arg)
 {
     int int1, int2;
-    struct uhid* hid; 
-    
+    struct uhid* hid;
+
     hid = (struct uhid*)arg;
 
     int1 = *(rt_uint32_t*)hid->buffer;
@@ -28,9 +28,9 @@ static rt_err_t rt_usbh_hid_kbd_callback(void* arg)
 
     if(int1 != 0 || int2 != 0)
     {
-        RT_DEBUG_LOG(RT_DEBUG_USB, ("key down 0x%x, 0x%x\n", int1, int2));    
+        RT_DEBUG_LOG(RT_DEBUG_USB, ("key down 0x%x, 0x%x\n", int1, int2));
     }
-    
+
     return RT_EOK;
 }
 
@@ -38,20 +38,20 @@ static rt_err_t rt_usbh_hid_kbd_init(void* arg)
 {
     struct uintf* intf = (struct uintf*)arg;
 
-    RT_ASSERT(intf != RT_NULL);        
-    
+    RT_ASSERT(intf != RT_NULL);
+
     rt_usbh_hid_set_protocal(intf, 0);
 
     rt_usbh_hid_set_idle(intf, 10, 0);
 
-    //RT_DEBUG_LOG(RT_DEBUG_USB, ("start usb keyboard\n"));    
+    //RT_DEBUG_LOG(RT_DEBUG_USB, ("start usb keyboard\n"));
 
     return RT_EOK;
 }
 
 /**
  * This function will define the hid keyboard protocal, it will be register to the protocal list.
- * 
+ *
  * @return the keyboard protocal structure.
  */
 uprotocal_t rt_usbh_hid_protocal_kbd(void)
diff --git a/components/drivers/usb/usbhost/class/umouse.c b/components/drivers/usb/usbhost/class/umouse.c
index 7f50c0451f..ae14cba22c 100644
--- a/components/drivers/usb/usbhost/class/umouse.c
+++ b/components/drivers/usb/usbhost/class/umouse.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/usb/usbhost/core/driver.c b/components/drivers/usb/usbhost/core/driver.c
index 37327108c1..6dad1409a0 100644
--- a/components/drivers/usb/usbhost/core/driver.c
+++ b/components/drivers/usb/usbhost/core/driver.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -17,21 +17,21 @@ static rt_list_t _driver_list;
 /**
  * This function will initilize the usb class driver related data structure,
  * and it should be invoked in the usb system initialization.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_class_driver_init(void)
 {
     rt_list_init(&_driver_list);
 
-    return RT_EOK;    
+    return RT_EOK;
 }
 
 /**
  * This function will register an usb class driver to the class driver manager.
  *
  * @param drv the pointer of the usb class driver.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 
@@ -41,15 +41,15 @@ rt_err_t rt_usbh_class_driver_register(ucd_t drv)
 
     /* insert class driver into driver list */
     rt_list_insert_after(&_driver_list, &(drv->list));
-    
-    return RT_EOK;    
+
+    return RT_EOK;
 }
 
 /**
  * This function will removes a previously registed usb class driver.
  *
  * @param drv the pointer of the usb class driver structure.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_class_driver_unregister(ucd_t drv)
@@ -67,7 +67,7 @@ rt_err_t rt_usbh_class_driver_unregister(ucd_t drv)
  *
  * @param drv the pointer of usb class driver.
  * @param args the parameter of run function.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_class_driver_enable(ucd_t drv, void* args)
@@ -85,7 +85,7 @@ rt_err_t rt_usbh_class_driver_enable(ucd_t drv, void* args)
  *
  * @param drv the pointer of usb class driver structure.
  * @param args the argument of the stop function.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_class_driver_disable(ucd_t drv, void* args)
@@ -102,7 +102,7 @@ rt_err_t rt_usbh_class_driver_disable(ucd_t drv, void* args)
 /**
  * This function finds a usb class driver by specified class code and subclass code.
  *
- * @param class_code the usb class driver's class code. 
+ * @param class_code the usb class driver's class code.
  * @param subclass_code the usb class driver's sub class code.
  *
  * @return the registered usb class driver on successful, or RT_NULL on failure.
@@ -118,7 +118,7 @@ ucd_t rt_usbh_class_driver_find(int class_code, int subclass_code)
     /* try to find driver object */
     for (node = _driver_list.next; node != &_driver_list; node = node->next)
     {
-        ucd_t drv = 
+        ucd_t drv =
             (ucd_t)rt_list_entry(node, struct uclass_driver, list);
         if (drv->class_code == class_code)
         {
diff --git a/components/drivers/usb/usbhost/core/hub.c b/components/drivers/usb/usbhost/core/hub.c
index eefa571472..b6381ec300 100644
--- a/components/drivers/usb/usbhost/core/hub.c
+++ b/components/drivers/usb/usbhost/core/hub.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -77,7 +77,7 @@ static rt_err_t root_hub_ctrl(struct uhcd *hcd, rt_uint16_t port, rt_uint8_t cmd
         return RT_ERROR;
     }
     return RT_EOK;
-} 
+}
 void rt_usbh_root_hub_connect_handler(struct uhcd *hcd, rt_uint8_t port, rt_bool_t isHS)
 {
     struct uhost_msg msg;
@@ -106,23 +106,23 @@ void rt_usbh_root_hub_disconnect_handler(struct uhcd *hcd, rt_uint8_t port)
 }
 
 /**
- * This function will do USB_REQ_GET_DESCRIPTOR bRequest for the device instance 
+ * This function will do USB_REQ_GET_DESCRIPTOR bRequest for the device instance
  * to get usb hub descriptor.
  *
  * @param intf the interface instance.
  * @buffer the data buffer to save usb hub descriptor.
  * @param nbytes the size of buffer
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_hub_get_descriptor(struct uinstance* device, rt_uint8_t *buffer, rt_size_t nbytes)
 {
     struct urequest setup;
     int timeout = USB_TIMEOUT_BASIC;
-        
+
     /* parameter check */
     RT_ASSERT(device != RT_NULL);
-    
+
     setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_CLASS | USB_REQ_TYPE_DEVICE;
     setup.bRequest = USB_REQ_GET_DESCRIPTOR;
     setup.wIndex = 0;
@@ -135,24 +135,24 @@ rt_err_t rt_usbh_hub_get_descriptor(struct uinstance* device, rt_uint8_t *buffer
         {
             return RT_EOK;
         }
-    } 
-    return -RT_FALSE;    
+    }
+    return -RT_FALSE;
 }
 
 /**
- * This function will do USB_REQ_GET_STATUS bRequest for the device instance 
+ * This function will do USB_REQ_GET_STATUS bRequest for the device instance
  * to get usb hub status.
  *
  * @param intf the interface instance.
  * @buffer the data buffer to save usb hub status.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_hub_get_status(struct uinstance* device, rt_uint32_t* buffer)
 {
     struct urequest setup;
     int timeout = USB_TIMEOUT_BASIC;
-    
+
     /* parameter check */
     RT_ASSERT(device != RT_NULL);
 
@@ -168,31 +168,31 @@ rt_err_t rt_usbh_hub_get_status(struct uinstance* device, rt_uint32_t* buffer)
             return RT_EOK;
         }
     }
-    return -RT_FALSE;    
+    return -RT_FALSE;
 }
 
 /**
- * This function will do USB_REQ_GET_STATUS bRequest for the device instance 
+ * This function will do USB_REQ_GET_STATUS bRequest for the device instance
  * to get hub port status.
  *
  * @param intf the interface instance.
  * @port the hub port to get status.
  * @buffer the data buffer to save usb hub status.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_hub_get_port_status(uhub_t hub, rt_uint16_t port, rt_uint32_t* buffer)
 {
     struct urequest setup;
     int timeout = USB_TIMEOUT_BASIC;
-    
+
     /* parameter check */
     RT_ASSERT(hub != RT_NULL);
 
     /* get roothub port status */
     if(hub->is_roothub)
     {
-        root_hub_ctrl(hub->hcd, port, RH_GET_PORT_STATUS, 
+        root_hub_ctrl(hub->hcd, port, RH_GET_PORT_STATUS,
             (void*)buffer);
         return RT_EOK;
     }
@@ -210,36 +210,36 @@ rt_err_t rt_usbh_hub_get_port_status(uhub_t hub, rt_uint16_t port, rt_uint32_t*
             return RT_EOK;
         }
     }
-    return -RT_FALSE;        
+    return -RT_FALSE;
 }
 
 /**
- * This function will do USB_REQ_CLEAR_FEATURE bRequest for the device instance 
+ * This function will do USB_REQ_CLEAR_FEATURE bRequest for the device instance
  * to clear feature of the hub port.
  *
  * @param intf the interface instance.
  * @port the hub port.
  * @feature feature to be cleared.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_hub_clear_port_feature(uhub_t hub, rt_uint16_t port, rt_uint16_t feature)
 {
     struct urequest setup;
     int timeout = USB_TIMEOUT_BASIC;
-        
+
     /* parameter check */
     RT_ASSERT(hub != RT_NULL);
 
     /* clear roothub feature */
     if(hub->is_roothub)
     {
-        root_hub_ctrl(hub->hcd, port, RH_CLEAR_PORT_FEATURE, 
+        root_hub_ctrl(hub->hcd, port, RH_CLEAR_PORT_FEATURE,
             (void*)(rt_uint32_t)feature);
         return RT_EOK;
     }
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS |
         USB_REQ_TYPE_OTHER;
     setup.bRequest = USB_REQ_CLEAR_FEATURE;
     setup.wIndex = port;
@@ -250,37 +250,37 @@ rt_err_t rt_usbh_hub_clear_port_feature(uhub_t hub, rt_uint16_t port, rt_uint16_
     {
         return RT_EOK;
     }
-    return -RT_FALSE;    
+    return -RT_FALSE;
 }
 
 /**
- * This function will do USB_REQ_SET_FEATURE bRequest for the device instance 
+ * This function will do USB_REQ_SET_FEATURE bRequest for the device instance
  * to set feature of the hub port.
  *
  * @param intf the interface instance.
  * @port the hub port.
  * @feature feature to be set.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-rt_err_t rt_usbh_hub_set_port_feature(uhub_t hub, rt_uint16_t port, 
+rt_err_t rt_usbh_hub_set_port_feature(uhub_t hub, rt_uint16_t port,
     rt_uint16_t feature)
 {
     struct urequest setup;
     int timeout = USB_TIMEOUT_BASIC;
-        
+
     /* parameter check */
     RT_ASSERT(hub != RT_NULL);
 
     /* clear roothub feature */
     if(hub->is_roothub)
     {
-        root_hub_ctrl(hub->hcd, port, RH_SET_PORT_FEATURE, 
+        root_hub_ctrl(hub->hcd, port, RH_SET_PORT_FEATURE,
             (void*)(rt_uint32_t)feature);
         return RT_EOK;
     }
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_CLASS |
         USB_REQ_TYPE_OTHER;
     setup.bRequest = USB_REQ_SET_FEATURE;
     setup.wIndex = port;
@@ -291,7 +291,7 @@ rt_err_t rt_usbh_hub_set_port_feature(uhub_t hub, rt_uint16_t port,
     {
         return RT_EOK;
     }
-    else return -RT_FALSE;        
+    else return -RT_FALSE;
 }
 
 /**
@@ -299,17 +299,17 @@ rt_err_t rt_usbh_hub_set_port_feature(uhub_t hub, rt_uint16_t port,
  *
  * @param intf the interface instance.
  * @param port the hub port.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_hub_reset_port(uhub_t hub, rt_uint16_t port)
 {
     rt_err_t ret;
     rt_uint32_t pstatus;
-    
+
     /* parameter check */
     RT_ASSERT(hub != RT_NULL);
-    
+
     rt_thread_delay(50);
 
     /* reset hub port */
@@ -321,12 +321,12 @@ rt_err_t rt_usbh_hub_reset_port(uhub_t hub, rt_uint16_t port)
         ret = rt_usbh_hub_get_port_status(hub, port, &pstatus);
         if(!(pstatus & PORT_PRS)) break;
     }
-    
+
     /* clear port reset feature */
-    ret = rt_usbh_hub_clear_port_feature(hub, port, PORT_FEAT_C_RESET);    
+    ret = rt_usbh_hub_clear_port_feature(hub, port, PORT_FEAT_C_RESET);
     if(ret != RT_EOK) return ret;
 
-    rt_thread_delay(50);    
+    rt_thread_delay(50);
 
     return RT_EOK;
 }
@@ -336,7 +336,7 @@ rt_err_t rt_usbh_hub_reset_port(uhub_t hub, rt_uint16_t port)
  *
  * @param device the usb instance.
  * @param port the hub port.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_hub_port_debounce(uhub_t hub, rt_uint16_t port)
@@ -356,15 +356,15 @@ rt_err_t rt_usbh_hub_port_debounce(uhub_t hub, rt_uint16_t port)
     {
         ret = rt_usbh_hub_get_port_status(hub, port, &pstatus);
         if(ret != RT_EOK) return ret;
-            
-        if(!(pstatus & PORT_CCS)) 
+
+        if(!(pstatus & PORT_CCS))
         {
             connect = RT_FALSE;
             break;
         }
-        
+
         rt_thread_delay(delayticks);
-    }        
+    }
 
     if(connect) return RT_EOK;
     else return -RT_ERROR;
@@ -375,7 +375,7 @@ rt_err_t rt_usbh_hub_port_debounce(uhub_t hub, rt_uint16_t port)
  * disconnect events.
  *
  * @param intf the interface instance.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 static rt_err_t rt_usbh_hub_port_change(uhub_t hub)
@@ -386,7 +386,7 @@ static rt_err_t rt_usbh_hub_port_change(uhub_t hub)
     /* parameter check */
     RT_ASSERT(hub != RT_NULL);
 
-    /* get usb device instance */    
+    /* get usb device instance */
     for (i = 0; i < hub->num_ports; i++)
     {
         rt_err_t ret;
@@ -394,7 +394,7 @@ static rt_err_t rt_usbh_hub_port_change(uhub_t hub)
         rt_uint32_t pstatus = 0;
 
         reconnect = RT_FALSE;
-        
+
         /* get hub port status */
         ret = rt_usbh_hub_get_port_status(hub, i + 1, &pstatus);
         if(ret != RT_EOK) continue;
@@ -402,8 +402,8 @@ static rt_err_t rt_usbh_hub_port_change(uhub_t hub)
         RT_DEBUG_LOG(RT_DEBUG_USB, ("port %d status 0x%x\n", i + 1, pstatus));
 
         /* check port status change */
-        if (pstatus & PORT_CCSC) 
-        {        
+        if (pstatus & PORT_CCSC)
+        {
             /* clear port status change feature */
             rt_usbh_hub_clear_port_feature(hub, i + 1, PORT_FEAT_C_CONNECTION);
             reconnect = RT_TRUE;
@@ -411,39 +411,39 @@ static rt_err_t rt_usbh_hub_port_change(uhub_t hub)
 
         if(pstatus & PORT_PESC)
         {
-            rt_usbh_hub_clear_port_feature(hub, i + 1, PORT_FEAT_C_ENABLE);            
+            rt_usbh_hub_clear_port_feature(hub, i + 1, PORT_FEAT_C_ENABLE);
             reconnect = RT_TRUE;
         }
-        
+
         if(reconnect)
-        {            
+        {
             if(hub->child[i] != RT_NULL && hub->child[i]->status != DEV_STATUS_IDLE)
-            { 
+            {
                 rt_usbh_detach_instance(hub->child[i]);
 
                 /* Child device have been detach. Set hub->child[i] to NULL. */
                 hub->child[i] = RT_NULL;
             }
-            
+
             ret = rt_usbh_hub_port_debounce(hub, i + 1);
             if(ret != RT_EOK) continue;
-            
+
             /* allocate an usb instance for new connected device */
             device = rt_usbh_alloc_instance(hub->hcd);
             if(device == RT_NULL) break;
-            
+
             /* set usb device speed */
             device->speed = (pstatus & PORT_LSDA) ? 1 : 0;
-            device->parent_hub = hub;    
+            device->parent_hub = hub;
             device->hcd = hub->hcd;
             device->port = i + 1;
             hub->child[i] = device;
 
             /* reset usb roothub port */
             rt_usbh_hub_reset_port(hub, i + 1);
-            
+
             /* attatch the usb instance to the hcd */
-            rt_usbh_attatch_instance(device); 
+            rt_usbh_attatch_instance(device);
         }
     }
 
@@ -454,7 +454,7 @@ static rt_err_t rt_usbh_hub_port_change(uhub_t hub)
  * This function is the callback function of hub's int endpoint, it is invoked when data comes.
  *
  * @param context the context of the callback function.
- * 
+ *
  * @return none.
  */
 static void rt_usbh_hub_irq(void* context)
@@ -462,9 +462,9 @@ static void rt_usbh_hub_irq(void* context)
     upipe_t pipe;
     uhub_t hub;
     int timeout = USB_TIMEOUT_BASIC;
-    
+
     RT_ASSERT(context != RT_NULL);
-    
+
     pipe = (upipe_t)context;
     hub = (uhub_t)pipe->user_data;
 
@@ -473,14 +473,14 @@ static void rt_usbh_hub_irq(void* context)
         RT_DEBUG_LOG(RT_DEBUG_USB,("hub irq error\n"));
         return;
     }
-    
+
     rt_usbh_hub_port_change(hub);
 
     RT_DEBUG_LOG(RT_DEBUG_USB,("hub int xfer...\n"));
 
     /* parameter check */
      RT_ASSERT(pipe->inst->hcd != RT_NULL);
-    
+
     rt_usb_hcd_pipe_xfer(hub->self->hcd, pipe, hub->buffer, pipe->ep.wMaxPacketSize, timeout);
 }
 
@@ -489,7 +489,7 @@ static void rt_usbh_hub_irq(void* context)
  * as a hub class device, it will continue to do the enumulate process.
  *
  * @param arg the argument.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 
@@ -505,7 +505,7 @@ static rt_err_t rt_usbh_hub_enable(void *arg)
     int timeout = USB_TIMEOUT_LONG;
     /* paremeter check */
     RT_ASSERT(intf != RT_NULL);
-    
+
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usbh_hub_run\n"));
 
     /* get usb device instance */
@@ -515,7 +515,7 @@ static rt_err_t rt_usbh_hub_enable(void *arg)
     hub = rt_malloc(sizeof(struct uhub));
     RT_ASSERT(hub != RT_NULL);
     rt_memset(hub, 0, sizeof(struct uhub));
-    
+
     /* make interface instance's user data point to hub instance */
     intf->user_data = (void*)hub;
 
@@ -524,17 +524,17 @@ static rt_err_t rt_usbh_hub_enable(void *arg)
     if(ret != RT_EOK)
     {
         rt_kprintf("get hub descriptor failed\n");
-        return -RT_ERROR;        
+        return -RT_ERROR;
     }
 
     /* get full hub descriptor */
-    ret = rt_usbh_hub_get_descriptor(device, (rt_uint8_t*)&hub->hub_desc, 
+    ret = rt_usbh_hub_get_descriptor(device, (rt_uint8_t*)&hub->hub_desc,
         hub->hub_desc.length);
     if(ret != RT_EOK)
     {
         rt_kprintf("get hub descriptor again failed\n");
-        return -RT_ERROR;        
-    }    
+        return -RT_ERROR;
+    }
 
     /* get hub ports number */
     /* If hub device supported ports over USB_HUB_PORT_NUM(Ex: 8 port hub). Set hub->num_ports to USB_HUB_PORT_NUM */
@@ -554,7 +554,7 @@ static rt_err_t rt_usbh_hub_enable(void *arg)
             * 2 * RT_TICK_PER_SECOND / 1000 );
     }
 
-    if(intf->intf_desc->bNumEndpoints != 1) 
+    if(intf->intf_desc->bNumEndpoints != 1)
         return -RT_ERROR;
 
     /* get endpoint descriptor from interface descriptor */
@@ -565,12 +565,12 @@ static rt_err_t rt_usbh_hub_enable(void *arg)
         return -RT_ERROR;
     }
 
-    /* the endpoint type of hub class should be interrupt */        
+    /* the endpoint type of hub class should be interrupt */
     if( USB_EP_ATTR(ep_desc->bmAttributes) == USB_EP_ATTR_INT)
     {
         /* the endpoint direction of hub class should be in */
         if(ep_desc->bEndpointAddress & USB_DIR_IN)
-        {    
+        {
             /* allocate a pipe according to the endpoint type */
             pipe_in = rt_usb_instance_find_pipe(device,ep_desc->bEndpointAddress);
             if(pipe_in == RT_NULL)
@@ -585,17 +585,17 @@ static rt_err_t rt_usbh_hub_enable(void *arg)
     /* parameter check */
     RT_ASSERT(device->hcd != RT_NULL);
     pipe_in->user_data = hub;
-    rt_usb_hcd_pipe_xfer(hub->hcd, pipe_in, hub->buffer, 
+    rt_usb_hcd_pipe_xfer(hub->hcd, pipe_in, hub->buffer,
         pipe_in->ep.wMaxPacketSize, timeout);
     return RT_EOK;
 }
 
 /**
- * This function will be invoked when usb hub plug out is detected and it would clean 
+ * This function will be invoked when usb hub plug out is detected and it would clean
  * and release all hub class related resources.
  *
  * @param arg the argument.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 static rt_err_t rt_usbh_hub_disable(void* arg)
@@ -615,7 +615,7 @@ static rt_err_t rt_usbh_hub_disable(void* arg)
         if(hub->child[i] != RT_NULL)
             rt_usbh_detach_instance(hub->child[i]);
     }
-    
+
     if(hub != RT_NULL) rt_free(hub);
 
     return RT_EOK;
@@ -624,13 +624,13 @@ static rt_err_t rt_usbh_hub_disable(void* arg)
 /**
  * This function will register hub class driver to the usb class driver manager.
  * and it should be invoked in the usb system initialization.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 ucd_t rt_usbh_class_driver_hub(void)
-{    
+{
     hub_driver.class_code = USB_CLASS_HUB;
-    
+
     hub_driver.enable = rt_usbh_hub_enable;
     hub_driver.disable = rt_usbh_hub_disable;
 
@@ -638,27 +638,27 @@ ucd_t rt_usbh_class_driver_hub(void)
 }
 
 /**
- * This function is the main entry of usb hub thread, it is in charge of 
- * processing all messages received from the usb message buffer.  
+ * This function is the main entry of usb hub thread, it is in charge of
+ * processing all messages received from the usb message buffer.
  *
  * @param parameter the parameter of the usb host thread.
- * 
+ *
  * @return none.
  */
 static void rt_usbh_hub_thread_entry(void* parameter)
-{    
+{
     while(1)
-    {    
+    {
         struct uhost_msg msg;
-        
+
         /* receive message */
-        if(rt_mq_recv(usb_mq, &msg, sizeof(struct uhost_msg), RT_WAITING_FOREVER) 
+        if(rt_mq_recv(usb_mq, &msg, sizeof(struct uhost_msg), RT_WAITING_FOREVER)
             != RT_EOK ) continue;
 
         //RT_DEBUG_LOG(RT_DEBUG_USB, ("msg type %d\n", msg.type));
-        
+
         switch (msg.type)
-        {        
+        {
         case USB_MSG_CONNECT_CHANGE:
             rt_usbh_hub_port_change(msg.content.hub);
             break;
@@ -668,7 +668,7 @@ static void rt_usbh_hub_thread_entry(void* parameter)
             break;
         default:
             break;
-        }            
+        }
     }
 }
 
@@ -676,8 +676,8 @@ static void rt_usbh_hub_thread_entry(void* parameter)
  * This function will post an message to the usb message queue,
  *
  * @param msg the message to be posted
- * 
- * @return the error code, RT_EOK on successfully. 
+ *
+ * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_event_signal(struct uhost_msg* msg)
 {
@@ -693,7 +693,7 @@ rt_err_t rt_usbh_event_signal(struct uhost_msg* msg)
  * This function will initialize usb hub thread.
  *
  * @return none.
- * 
+ *
  */
 void rt_usbh_hub_init(uhcd_t hcd)
 {
@@ -705,9 +705,9 @@ void rt_usbh_hub_init(uhcd_t hcd)
     root_hub.num_ports = hcd->num_ports;
     /* create usb message queue */
     usb_mq = rt_mq_create("usbh", 32, 16, RT_IPC_FLAG_FIFO);
-    
+
     /* create usb hub thread */
-    thread = rt_thread_create("usbh", rt_usbh_hub_thread_entry, RT_NULL, 
+    thread = rt_thread_create("usbh", rt_usbh_hub_thread_entry, RT_NULL,
         USB_THREAD_STACK_SIZE, 8, 20);
     if(thread != RT_NULL)
     {
diff --git a/components/drivers/usb/usbhost/core/usbhost.c b/components/drivers/usb/usbhost/core/usbhost.c
index f0294238c4..a76f6d4586 100644
--- a/components/drivers/usb/usbhost/core/usbhost.c
+++ b/components/drivers/usb/usbhost/core/usbhost.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -19,13 +19,13 @@
 /**
  * This function will initialize the usb host stack, all the usb class driver and
  * host controller driver are also be initialized here.
- * 
+ *
  * @return none.
  */
 rt_err_t rt_usb_host_init(void)
 {
     ucd_t drv;
-    rt_device_t uhc;    
+    rt_device_t uhc;
 
     uhc = rt_device_find(USB_HOST_CONTROLLER_NAME);
     if(uhc == RT_NULL)
diff --git a/components/drivers/usb/usbhost/core/usbhost_core.c b/components/drivers/usb/usbhost/core/usbhost_core.c
index d72dca82f2..71fe3b8b3f 100644
--- a/components/drivers/usb/usbhost/core/usbhost_core.c
+++ b/components/drivers/usb/usbhost/core/usbhost_core.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -27,28 +27,28 @@ uinst_t rt_usbh_alloc_instance(uhcd_t uhcd)
 
     /* lock scheduler */
     rt_enter_critical();
-    
+
     for(i=0; i<USB_MAX_DEVICE; i++)
     {
         /* to find an idle instance handle */
         if(dev[i].status != DEV_STATUS_IDLE) continue;
-        
+
         /* initialize the usb device instance */
         rt_memset(&dev[i], 0, sizeof(struct uinstance));
-        
+
         dev[i].status = DEV_STATUS_BUSY;
         dev[i].index = i + 1;
         dev[i].address = 0;
         dev[i].max_packet_size = 0x8;
         rt_list_init(&dev[i].pipe);
         dev[i].hcd = uhcd;
-        /* unlock scheduler */        
+        /* unlock scheduler */
         rt_exit_critical();
         return &dev[i];
     }
 
-    /* unlock scheduler */            
-    rt_exit_critical();     
+    /* unlock scheduler */
+    rt_exit_critical();
 
     return RT_NULL;
 }
@@ -59,10 +59,10 @@ uinst_t rt_usbh_alloc_instance(uhcd_t uhcd)
  *
  * @param hcd the host controller driver.
  * @param device the usb device instance.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-static struct uendpoint_descriptor ep0_out_desc = 
+static struct uendpoint_descriptor ep0_out_desc =
 {
     /*endpoint descriptor*/
     USB_DESC_LENGTH_ENDPOINT,
@@ -72,7 +72,7 @@ static struct uendpoint_descriptor ep0_out_desc =
     0x00,
     0x00,
 };
-static struct uendpoint_descriptor ep0_in_desc = 
+static struct uendpoint_descriptor ep0_in_desc =
 {
     /*endpoint descriptor*/
     USB_DESC_LENGTH_ENDPOINT,
@@ -95,10 +95,10 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
     ucd_t drv;
 
     RT_ASSERT(device != RT_NULL);
-    
+
     rt_memset(&cfg_desc, 0, sizeof(struct uconfig_descriptor));
     dev_desc = &device->dev_desc;
-    
+
     /* alloc address 0 ep0 pipe*/
     ep0_out_desc.wMaxPacketSize = 8;
     ep0_in_desc.wMaxPacketSize = 8;
@@ -106,7 +106,7 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
     rt_usb_hcd_alloc_pipe(device->hcd, &device->pipe_ep0_in, device, &ep0_in_desc);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("start enumnation\n"));
-    
+
     /* get device descriptor head */
     ret = rt_usbh_get_descriptor(device, USB_DESC_TYPE_DEVICE, (void*)dev_desc, 8);
     if(ret != RT_EOK)
@@ -114,7 +114,7 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
         rt_kprintf("get device descriptor head failed\n");
         return ret;
     }
-    
+
     /* reset bus */
     rt_usbh_hub_reset_port(device->parent_hub, device->port);
     rt_thread_delay(2);
@@ -127,20 +127,20 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
         return ret;
     }
     /* free address 0 ep0 pipe*/
-    
+
     rt_usb_hcd_free_pipe(device->hcd,device->pipe_ep0_out);
     rt_usb_hcd_free_pipe(device->hcd,device->pipe_ep0_in);
-    
+
     /* set device max packet size */
     ep0_out_desc.wMaxPacketSize = device->dev_desc.bMaxPacketSize0;
     ep0_in_desc.wMaxPacketSize = device->dev_desc.bMaxPacketSize0;
-    
+
     /* alloc true address ep0 pipe*/
     rt_usb_hcd_alloc_pipe(device->hcd, &device->pipe_ep0_out, device, &ep0_out_desc);
     rt_usb_hcd_alloc_pipe(device->hcd, &device->pipe_ep0_in, device, &ep0_in_desc);
     RT_DEBUG_LOG(RT_DEBUG_USB, ("get device descriptor length %d\n",
                                 dev_desc->bLength));
-    
+
     /* get full device descriptor again */
     ret = rt_usbh_get_descriptor(device, USB_DESC_TYPE_DEVICE, (void*)dev_desc, dev_desc->bLength);
     if(ret != RT_EOK)
@@ -169,7 +169,7 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
     rt_memset(device->cfg_desc, 0, cfg_desc.wTotalLength);
 
     /* get full configuration descriptor */
-    ret = rt_usbh_get_descriptor(device, USB_DESC_TYPE_CONFIGURATION, 
+    ret = rt_usbh_get_descriptor(device, USB_DESC_TYPE_CONFIGURATION,
         device->cfg_desc, cfg_desc.wTotalLength);
     if(ret != RT_EOK)
     {
@@ -179,12 +179,12 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
 
     /* set configuration */
     ret = rt_usbh_set_configure(device, 1);
-    if(ret != RT_EOK) 
+    if(ret != RT_EOK)
     {
         return ret;
     }
     for(i=0; i<device->cfg_desc->bNumInterfaces; i++)
-    {        
+    {
         /* get interface descriptor through configuration descriptor */
         ret = rt_usbh_get_interface_descriptor(device->cfg_desc, i, &intf_desc);
         if(ret != RT_EOK)
@@ -193,7 +193,7 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
             return -RT_ERROR;
         }
 
-        RT_DEBUG_LOG(RT_DEBUG_USB, ("interface class 0x%x, subclass 0x%x\n", 
+        RT_DEBUG_LOG(RT_DEBUG_USB, ("interface class 0x%x, subclass 0x%x\n",
                                     intf_desc->bInterfaceClass,
                                     intf_desc->bInterfaceSubClass));
         /* alloc pipe*/
@@ -216,9 +216,9 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
             }
         }
         /* find driver by class code found in interface descriptor */
-        drv = rt_usbh_class_driver_find(intf_desc->bInterfaceClass, 
+        drv = rt_usbh_class_driver_find(intf_desc->bInterfaceClass,
             intf_desc->bInterfaceSubClass);
-        
+
         if(drv != RT_NULL)
         {
             /* allocate memory for interface device */
@@ -245,7 +245,7 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
             continue;
         }
     }
-    
+
     return RT_EOK;
 }
 
@@ -254,19 +254,19 @@ rt_err_t rt_usbh_attatch_instance(uinst_t device)
  * and release all resource.
  *
  * @param device the usb device instance.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_detach_instance(uinst_t device)
 {
     int i = 0;
     rt_list_t * l;
-    if(device == RT_NULL) 
+    if(device == RT_NULL)
     {
         rt_kprintf("no usb instance to detach\n");
         return -RT_ERROR;
     }
-    
+
     /* free configration descriptor */
     if (device->cfg_desc) {
         for (i = 0; i < device->cfg_desc->bNumInterfaces; i++)
@@ -282,10 +282,10 @@ rt_err_t rt_usbh_detach_instance(uinst_t device)
         }
         rt_free(device->cfg_desc);
     }
-    
+
     rt_usb_hcd_free_pipe(device->hcd,device->pipe_ep0_out);
     rt_usb_hcd_free_pipe(device->hcd,device->pipe_ep0_in);
-    
+
     while(device->pipe.next!= &device->pipe)
     {
         l = device->pipe.next;
@@ -293,29 +293,29 @@ rt_err_t rt_usbh_detach_instance(uinst_t device)
         rt_usb_hcd_free_pipe(device->hcd,rt_list_entry(l,struct upipe,list));
     }
     rt_memset(device, 0, sizeof(struct uinstance));
-    
+
     return RT_EOK;
 }
 
 /**
  * This function will do USB_REQ_GET_DESCRIPTO' bRequest for the usb device instance,
  *
- * @param device the usb device instance. 
+ * @param device the usb device instance.
  * @param type the type of descriptor bRequest.
  * @param buffer the data buffer to save requested data
  * @param nbytes the size of buffer
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-rt_err_t rt_usbh_get_descriptor(uinst_t device, rt_uint8_t type, void* buffer, 
+rt_err_t rt_usbh_get_descriptor(uinst_t device, rt_uint8_t type, void* buffer,
     int nbytes)
 {
     struct urequest setup;
     int timeout = USB_TIMEOUT_BASIC;
-    
+
     RT_ASSERT(device != RT_NULL);
 
-    setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_STANDARD | 
+    setup.request_type = USB_REQ_TYPE_DIR_IN | USB_REQ_TYPE_STANDARD |
         USB_REQ_TYPE_DEVICE;
     setup.bRequest = USB_REQ_GET_DESCRIPTOR;
     setup.wIndex = 0;
@@ -339,19 +339,19 @@ rt_err_t rt_usbh_get_descriptor(uinst_t device, rt_uint8_t type, void* buffer,
  * This function will set an address to the usb device.
  *
  * @param device the usb device instance.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_set_address(uinst_t device)
 {
     struct urequest setup;
     int timeout = USB_TIMEOUT_BASIC;
-    
+
     RT_ASSERT(device != RT_NULL);
 
     RT_DEBUG_LOG(RT_DEBUG_USB, ("rt_usb_set_address\n"));
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_STANDARD | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_STANDARD |
         USB_REQ_TYPE_DEVICE;
     setup.bRequest = USB_REQ_SET_ADDRESS;
     setup.wIndex = 0;
@@ -375,7 +375,7 @@ rt_err_t rt_usbh_set_address(uinst_t device)
  *
  * @param device the usb device instance.
  * @param config the configuration number.
-  * 
+  *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_set_configure(uinst_t device, int config)
@@ -386,7 +386,7 @@ rt_err_t rt_usbh_set_configure(uinst_t device, int config)
     /* check parameter */
     RT_ASSERT(device != RT_NULL);
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_STANDARD | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_STANDARD |
         USB_REQ_TYPE_DEVICE;
     setup.bRequest = USB_REQ_SET_CONFIGURATION;
     setup.wIndex = 0;
@@ -401,7 +401,7 @@ rt_err_t rt_usbh_set_configure(uinst_t device, int config)
     {
         return RT_ERROR;
     }
-    return RT_EOK;    
+    return RT_EOK;
 }
 
 /**
@@ -409,7 +409,7 @@ rt_err_t rt_usbh_set_configure(uinst_t device, int config)
  *
  * @param device the usb device instance.
  * @param intf the interface number.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_set_interface(uinst_t device, int intf)
@@ -420,7 +420,7 @@ rt_err_t rt_usbh_set_interface(uinst_t device, int intf)
     /* check parameter */
     RT_ASSERT(device != RT_NULL);
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_STANDARD | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_STANDARD |
         USB_REQ_TYPE_INTERFACE;
     setup.bRequest = USB_REQ_SET_INTERFACE;
     setup.wIndex = 0;
@@ -431,8 +431,8 @@ rt_err_t rt_usbh_set_interface(uinst_t device, int intf)
     {
         return RT_ERROR;
     }
-    
-    return RT_EOK;    
+
+    return RT_EOK;
 }
 
 /**
@@ -440,7 +440,7 @@ rt_err_t rt_usbh_set_interface(uinst_t device, int intf)
  *
  * @param device the usb device instance.
  * @param endpoint the endpoint number of the usb device.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
 rt_err_t rt_usbh_clear_feature(uinst_t device, int endpoint, int feature)
@@ -451,7 +451,7 @@ rt_err_t rt_usbh_clear_feature(uinst_t device, int endpoint, int feature)
     /* check parameter */
     RT_ASSERT(device != RT_NULL);
 
-    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_STANDARD | 
+    setup.request_type = USB_REQ_TYPE_DIR_OUT | USB_REQ_TYPE_STANDARD |
         USB_REQ_TYPE_ENDPOINT;
     setup.bRequest = USB_REQ_CLEAR_FEATURE;
     setup.wIndex = endpoint;
@@ -462,8 +462,8 @@ rt_err_t rt_usbh_clear_feature(uinst_t device, int endpoint, int feature)
     {
         return RT_ERROR;
     }
-    
-    return RT_EOK;    
+
+    return RT_EOK;
 }
 
 /**
@@ -472,10 +472,10 @@ rt_err_t rt_usbh_clear_feature(uinst_t device, int endpoint, int feature)
  * @param cfg_desc the point of configuration descriptor structure.
  * @param num the number of interface descriptor.
  * @intf_desc the point of interface descriptor point.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-rt_err_t rt_usbh_get_interface_descriptor(ucfg_desc_t cfg_desc, int num, 
+rt_err_t rt_usbh_get_interface_descriptor(ucfg_desc_t cfg_desc, int num,
     uintf_desc_t* intf_desc)
 {
     rt_uint32_t ptr, depth = 0;
@@ -487,9 +487,9 @@ rt_err_t rt_usbh_get_interface_descriptor(ucfg_desc_t cfg_desc, int num,
     ptr = (rt_uint32_t)cfg_desc + cfg_desc->bLength;
     while(ptr < (rt_uint32_t)cfg_desc + cfg_desc->wTotalLength)
     {
-        if(depth++ > 0x20) 
+        if(depth++ > 0x20)
         {
-            *intf_desc = RT_NULL;        
+            *intf_desc = RT_NULL;
             return -RT_EIO;
         }
         desc = (udesc_t)ptr;
@@ -500,10 +500,10 @@ rt_err_t rt_usbh_get_interface_descriptor(ucfg_desc_t cfg_desc, int num,
                 *intf_desc = (uintf_desc_t)desc;
 
                 RT_DEBUG_LOG(RT_DEBUG_USB,
-                             ("rt_usb_get_interface_descriptor: %d\n", num));                
+                             ("rt_usb_get_interface_descriptor: %d\n", num));
                 return RT_EOK;
             }
-        }    
+        }
         ptr = (rt_uint32_t)desc + desc->bLength;
     }
 
@@ -517,14 +517,14 @@ rt_err_t rt_usbh_get_interface_descriptor(ucfg_desc_t cfg_desc, int num,
  * @param intf_desc the point of interface descriptor structure.
  * @param num the number of endpoint descriptor.
  * @param ep_desc the point of endpoint descriptor point.
- * 
+ *
  * @return the error code, RT_EOK on successfully.
  */
-rt_err_t rt_usbh_get_endpoint_descriptor(uintf_desc_t intf_desc, int num, 
+rt_err_t rt_usbh_get_endpoint_descriptor(uintf_desc_t intf_desc, int num,
     uep_desc_t* ep_desc)
 {
     int count = 0, depth = 0;
-    rt_uint32_t ptr;    
+    rt_uint32_t ptr;
     udesc_t desc;
 
     /* check parameter */
@@ -535,15 +535,15 @@ rt_err_t rt_usbh_get_endpoint_descriptor(uintf_desc_t intf_desc, int num,
     ptr = (rt_uint32_t)intf_desc + intf_desc->bLength;
     while(count < intf_desc->bNumEndpoints)
     {
-        if(depth++ > 0x20) 
+        if(depth++ > 0x20)
         {
-            *ep_desc = RT_NULL;            
+            *ep_desc = RT_NULL;
             return -RT_EIO;
         }
-        desc = (udesc_t)ptr;        
+        desc = (udesc_t)ptr;
         if(desc->type == USB_DESC_TYPE_ENDPOINT)
         {
-            if(num == count) 
+            if(num == count)
             {
                 *ep_desc = (uep_desc_t)desc;
 
diff --git a/components/drivers/watchdog/watchdog.c b/components/drivers/watchdog/watchdog.c
index 09a6bf4fad..9108d834c6 100644
--- a/components/drivers/watchdog/watchdog.c
+++ b/components/drivers/watchdog/watchdog.c
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
@@ -65,7 +65,7 @@ static rt_err_t rt_watchdog_control(struct rt_device *dev,
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops wdt_ops = 
+const static struct rt_device_ops wdt_ops =
 {
     rt_watchdog_init,
     rt_watchdog_open,
diff --git a/components/drivers/wlan/wlan_cfg.c b/components/drivers/wlan/wlan_cfg.c
index 7fa9ecb2da..0befe6e7da 100644
--- a/components/drivers/wlan/wlan_cfg.c
+++ b/components/drivers/wlan/wlan_cfg.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_cfg.h b/components/drivers/wlan/wlan_cfg.h
index 3fae3f3e98..4d0e73729d 100644
--- a/components/drivers/wlan/wlan_cfg.h
+++ b/components/drivers/wlan/wlan_cfg.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_cmd.c b/components/drivers/wlan/wlan_cmd.c
index fead6a8bf2..fde9065428 100644
--- a/components/drivers/wlan/wlan_cmd.c
+++ b/components/drivers/wlan/wlan_cmd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_dev.c b/components/drivers/wlan/wlan_dev.c
index 53b6138e99..4db8d5e43d 100644
--- a/components/drivers/wlan/wlan_dev.c
+++ b/components/drivers/wlan/wlan_dev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_dev.h b/components/drivers/wlan/wlan_dev.h
index 3019afb19d..9fce22b7c9 100644
--- a/components/drivers/wlan/wlan_dev.h
+++ b/components/drivers/wlan/wlan_dev.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -589,7 +589,7 @@ rt_err_t rt_wlan_dev_report_data(struct rt_wlan_device *device, void *buff, int
 /*
  * wlan device register interface
  */
-rt_err_t rt_wlan_dev_register(struct rt_wlan_device *wlan, const char *name, 
+rt_err_t rt_wlan_dev_register(struct rt_wlan_device *wlan, const char *name,
     const struct rt_wlan_dev_ops *ops, rt_uint32_t flag, void *user_data);
 
 #ifdef __cplusplus
diff --git a/components/drivers/wlan/wlan_lwip.c b/components/drivers/wlan/wlan_lwip.c
index 3c4e4dd598..30205ac332 100644
--- a/components/drivers/wlan/wlan_lwip.c
+++ b/components/drivers/wlan/wlan_lwip.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_mgnt.c b/components/drivers/wlan/wlan_mgnt.c
index fefe700acc..6abac5691c 100644
--- a/components/drivers/wlan/wlan_mgnt.c
+++ b/components/drivers/wlan/wlan_mgnt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_mgnt.h b/components/drivers/wlan/wlan_mgnt.h
index df0827bb7b..38d5c31da2 100644
--- a/components/drivers/wlan/wlan_mgnt.h
+++ b/components/drivers/wlan/wlan_mgnt.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_prot.c b/components/drivers/wlan/wlan_prot.c
index b1a1b5de99..5c32a3fbda 100644
--- a/components/drivers/wlan/wlan_prot.c
+++ b/components/drivers/wlan/wlan_prot.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_prot.h b/components/drivers/wlan/wlan_prot.h
index 2df979270f..5f8930f452 100644
--- a/components/drivers/wlan/wlan_prot.h
+++ b/components/drivers/wlan/wlan_prot.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_workqueue.c b/components/drivers/wlan/wlan_workqueue.c
index 4cd98346d2..76b95e66b0 100644
--- a/components/drivers/wlan/wlan_workqueue.c
+++ b/components/drivers/wlan/wlan_workqueue.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/drivers/wlan/wlan_workqueue.h b/components/drivers/wlan/wlan_workqueue.h
index 49bc4a5f9f..7a68a27e03 100644
--- a/components/drivers/wlan/wlan_workqueue.h
+++ b/components/drivers/wlan/wlan_workqueue.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/cmd.c b/components/finsh/cmd.c
index afbda59e90..8b51896cde 100644
--- a/components/finsh/cmd.c
+++ b/components/finsh/cmd.c
@@ -1,6 +1,6 @@
 
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -27,9 +27,9 @@
  * 2012-10-22     Bernard      add MS VC++ patch.
  * 2016-06-02     armink       beautify the list_thread command
  * 2018-11-22     Jesven       list_thread add smp support
- * 2018-12-27     Jesven       Fix the problem that disable interrupt too long in list_thread 
+ * 2018-12-27     Jesven       Fix the problem that disable interrupt too long in list_thread
  *                             Provide protection for the "first layer of objects" when list_*
- * 2020-04-07     chenhui      add clear 
+ * 2020-04-07     chenhui      add clear
  */
 
 #include <rthw.h>
@@ -156,7 +156,7 @@ static rt_list_t *list_get_next(rt_list_t *current, list_get_next_t *arg)
             break;
         }
     }
-    
+
     rt_hw_interrupt_enable(level);
     arg->nr_out = nr;
     return node;
diff --git a/components/finsh/finsh.h b/components/finsh/finsh.h
index 7276ea7ce1..dd5e27dea5 100644
--- a/components/finsh/finsh.h
+++ b/components/finsh/finsh.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_api.h b/components/finsh/finsh_api.h
index db2c175cb5..fd9e6a773e 100644
--- a/components/finsh/finsh_api.h
+++ b/components/finsh/finsh_api.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_compiler.c b/components/finsh/finsh_compiler.c
index f81409bf9a..1cb4ff00a5 100644
--- a/components/finsh/finsh_compiler.c
+++ b/components/finsh/finsh_compiler.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_error.c b/components/finsh/finsh_error.c
index bdd0108f98..a5cf2eb514 100644
--- a/components/finsh/finsh_error.c
+++ b/components/finsh/finsh_error.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_error.h b/components/finsh/finsh_error.h
index 614e02a350..8dfafd013c 100644
--- a/components/finsh/finsh_error.h
+++ b/components/finsh/finsh_error.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_heap.c b/components/finsh/finsh_heap.c
index 0d185db474..9f64d108dd 100644
--- a/components/finsh/finsh_heap.c
+++ b/components/finsh/finsh_heap.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_heap.h b/components/finsh/finsh_heap.h
index 9c04e5c22f..f320c2771a 100644
--- a/components/finsh/finsh_heap.h
+++ b/components/finsh/finsh_heap.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_init.c b/components/finsh/finsh_init.c
index 72f5aa5e9a..76302a0516 100644
--- a/components/finsh/finsh_init.c
+++ b/components/finsh/finsh_init.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_node.c b/components/finsh/finsh_node.c
index 0de82c189d..82a4c03f1e 100644
--- a/components/finsh/finsh_node.c
+++ b/components/finsh/finsh_node.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_node.h b/components/finsh/finsh_node.h
index c7ce099636..ff4333df13 100644
--- a/components/finsh/finsh_node.h
+++ b/components/finsh/finsh_node.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_ops.c b/components/finsh/finsh_ops.c
index 2eafb50c69..ec8b8cb58a 100644
--- a/components/finsh/finsh_ops.c
+++ b/components/finsh/finsh_ops.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_ops.h b/components/finsh/finsh_ops.h
index 95a8b001fb..0cc945f078 100644
--- a/components/finsh/finsh_ops.h
+++ b/components/finsh/finsh_ops.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -25,90 +25,90 @@
  * OP [op1]
  */
 
-#define FINSH_OP_NOOP			0x00
+#define FINSH_OP_NOOP           0x00
 
 /* add @ r1 = r2 + r3 */
-#define FINSH_OP_ADD_BYTE		0x01
-#define FINSH_OP_ADD_WORD		0x02
-#define FINSH_OP_ADD_DWORD		0x03
+#define FINSH_OP_ADD_BYTE       0x01
+#define FINSH_OP_ADD_WORD       0x02
+#define FINSH_OP_ADD_DWORD      0x03
 
 /* sub @ r1 = r2 - r3 */
-#define FINSH_OP_SUB_BYTE		0x04
-#define FINSH_OP_SUB_WORD		0x05
-#define FINSH_OP_SUB_DWORD		0x06
+#define FINSH_OP_SUB_BYTE       0x04
+#define FINSH_OP_SUB_WORD       0x05
+#define FINSH_OP_SUB_DWORD      0x06
 
 /* div @ r1 = r2 / r3 */
-#define FINSH_OP_DIV_BYTE		0x07
-#define FINSH_OP_DIV_WORD		0x08
-#define FINSH_OP_DIV_DWORD		0x09
+#define FINSH_OP_DIV_BYTE       0x07
+#define FINSH_OP_DIV_WORD       0x08
+#define FINSH_OP_DIV_DWORD      0x09
 
 /* mod @ r1 = r2 % r3 */
-#define FINSH_OP_MOD_BYTE		0x0A
-#define FINSH_OP_MOD_WORD		0x0B
-#define FINSH_OP_MOD_DWORD		0x0C
+#define FINSH_OP_MOD_BYTE       0x0A
+#define FINSH_OP_MOD_WORD       0x0B
+#define FINSH_OP_MOD_DWORD      0x0C
 
 /* mul @ r1 = r2 * r3 */
-#define FINSH_OP_MUL_BYTE		0x0D
-#define FINSH_OP_MUL_WORD		0x0E
-#define FINSH_OP_MUL_DWORD		0x0F
+#define FINSH_OP_MUL_BYTE       0x0D
+#define FINSH_OP_MUL_WORD       0x0E
+#define FINSH_OP_MUL_DWORD      0x0F
 
 /* and @ r1 = r2 & r3 */
-#define FINSH_OP_AND_BYTE		0x10
-#define FINSH_OP_AND_WORD		0x11
-#define FINSH_OP_AND_DWORD		0x12
+#define FINSH_OP_AND_BYTE       0x10
+#define FINSH_OP_AND_WORD       0x11
+#define FINSH_OP_AND_DWORD      0x12
 
 /* or  @ r1 = r2 | r3 */
-#define FINSH_OP_OR_BYTE		0x13
-#define FINSH_OP_OR_WORD		0x14
-#define FINSH_OP_OR_DWORD		0x15
+#define FINSH_OP_OR_BYTE        0x13
+#define FINSH_OP_OR_WORD        0x14
+#define FINSH_OP_OR_DWORD       0x15
 
 /* xor @ r1 = r2 ^ r3 */
-#define FINSH_OP_XOR_BYTE		0x16
-#define FINSH_OP_XOR_WORD		0x17
-#define FINSH_OP_XOR_DWORD		0x18
+#define FINSH_OP_XOR_BYTE       0x16
+#define FINSH_OP_XOR_WORD       0x17
+#define FINSH_OP_XOR_DWORD      0x18
 
 /* bw  @ r1 = ~r2 */
-#define FINSH_OP_BITWISE_BYTE	0x19
-#define FINSH_OP_BITWISE_WORD	0x1A
-#define FINSH_OP_BITWISE_DWORD	0x1B
+#define FINSH_OP_BITWISE_BYTE   0x19
+#define FINSH_OP_BITWISE_WORD   0x1A
+#define FINSH_OP_BITWISE_DWORD  0x1B
 
 /* shl @ r1 = r2 << r3 */
-#define FINSH_OP_SHL_BYTE		0x1C
-#define FINSH_OP_SHL_WORD		0x1D
-#define FINSH_OP_SHL_DWORD		0x1E
+#define FINSH_OP_SHL_BYTE       0x1C
+#define FINSH_OP_SHL_WORD       0x1D
+#define FINSH_OP_SHL_DWORD      0x1E
 
 /* shr @ r1 = r2 >> r3 */
-#define FINSH_OP_SHR_BYTE		0x1F
-#define FINSH_OP_SHR_WORD		0x20
-#define FINSH_OP_SHR_DWORD		0x21
+#define FINSH_OP_SHR_BYTE       0x1F
+#define FINSH_OP_SHR_WORD       0x20
+#define FINSH_OP_SHR_DWORD      0x21
 
 /* ld  @ r1 = [r2] */
-#define FINSH_OP_LD_BYTE		0x22
-#define FINSH_OP_LD_WORD		0x23
-#define FINSH_OP_LD_DWORD		0x24
+#define FINSH_OP_LD_BYTE        0x22
+#define FINSH_OP_LD_WORD        0x23
+#define FINSH_OP_LD_DWORD       0x24
 
-#define FINSH_OP_LD_VALUE_BYTE	0x25
-#define FINSH_OP_LD_VALUE_WORD	0x26
-#define FINSH_OP_LD_VALUE_DWORD	0x27
+#define FINSH_OP_LD_VALUE_BYTE  0x25
+#define FINSH_OP_LD_VALUE_WORD  0x26
+#define FINSH_OP_LD_VALUE_DWORD 0x27
 
 /* st  @ [r2] = r1 */
-#define FINSH_OP_ST_BYTE		0x28
-#define FINSH_OP_ST_WORD		0x29
-#define FINSH_OP_ST_DWORD		0x2A
+#define FINSH_OP_ST_BYTE        0x28
+#define FINSH_OP_ST_WORD        0x29
+#define FINSH_OP_ST_DWORD       0x2A
 
 /* pop */
-#define FINSH_OP_POP			0x2B
+#define FINSH_OP_POP            0x2B
 
 /* call r1 @ [r1](stack) */
-#define FINSH_OP_SYSCALL		0x2C
+#define FINSH_OP_SYSCALL        0x2C
 
 /* load value from stack */
-#define FINSH_OP_LD_VALUE_BYTE_STACK	0x2D
-#define FINSH_OP_LD_VALUE_WORD_STACK	0x2E
-#define FINSH_OP_LD_VALUE_DWORD_STACK	0x2F
+#define FINSH_OP_LD_VALUE_BYTE_STACK    0x2D
+#define FINSH_OP_LD_VALUE_WORD_STACK    0x2E
+#define FINSH_OP_LD_VALUE_DWORD_STACK   0x2F
 
 /* halt */
-#define FINSH_OP_HALT			0xFF
+#define FINSH_OP_HALT           0xFF
 
 typedef void (*op_func)();
 extern const op_func op_table[];
diff --git a/components/finsh/finsh_parser.c b/components/finsh/finsh_parser.c
index 0e7617003c..4b8b4af7e4 100644
--- a/components/finsh/finsh_parser.c
+++ b/components/finsh/finsh_parser.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_parser.h b/components/finsh/finsh_parser.h
index 8e149a7e00..2d0148093a 100644
--- a/components/finsh/finsh_parser.h
+++ b/components/finsh/finsh_parser.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_token.c b/components/finsh/finsh_token.c
index 5fb593d816..dfd613da5b 100644
--- a/components/finsh/finsh_token.c
+++ b/components/finsh/finsh_token.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_token.h b/components/finsh/finsh_token.h
index 0ce98c0f14..9845357b8e 100644
--- a/components/finsh/finsh_token.h
+++ b/components/finsh/finsh_token.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_var.c b/components/finsh/finsh_var.c
index 6a27bf1fab..2e3df30c6d 100644
--- a/components/finsh/finsh_var.c
+++ b/components/finsh/finsh_var.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_var.h b/components/finsh/finsh_var.h
index 8d7ee6a201..796f979441 100644
--- a/components/finsh/finsh_var.h
+++ b/components/finsh/finsh_var.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_vm.c b/components/finsh/finsh_vm.c
index 7c56407084..e56cedbdfb 100644
--- a/components/finsh/finsh_vm.c
+++ b/components/finsh/finsh_vm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/finsh_vm.h b/components/finsh/finsh_vm.h
index fc515418e4..15d5da1ef8 100644
--- a/components/finsh/finsh_vm.h
+++ b/components/finsh/finsh_vm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/msh.c b/components/finsh/msh.c
index 79f1e3c87f..73a5197dcd 100644
--- a/components/finsh/msh.c
+++ b/components/finsh/msh.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/msh.h b/components/finsh/msh.h
index b7153107ea..17c7a39ef1 100644
--- a/components/finsh/msh.h
+++ b/components/finsh/msh.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/msh_file.c b/components/finsh/msh_file.c
index aa182ff9b3..459d77af4e 100644
--- a/components/finsh/msh_file.c
+++ b/components/finsh/msh_file.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/shell.c b/components/finsh/shell.c
index 61f0b9562e..0d41625184 100644
--- a/components/finsh/shell.c
+++ b/components/finsh/shell.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -844,7 +844,7 @@ int finsh_system_init(void)
     finsh_system_var_init(&__vsymtab_start, &__vsymtab_end);
 #elif defined(_MSC_VER)
     unsigned int *ptr_begin, *ptr_end;
-		
+
     if(shell)
     {
         rt_kprintf("finsh shell already init.\n");
diff --git a/components/finsh/shell.h b/components/finsh/shell.h
index 8f94e23e8b..6a4dfff113 100644
--- a/components/finsh/shell.h
+++ b/components/finsh/shell.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/finsh/symbol.c b/components/finsh/symbol.c
index 78df9fac5c..c6623e2d82 100644
--- a/components/finsh/symbol.c
+++ b/components/finsh/symbol.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -7,7 +7,7 @@
  * Date           Author       Notes
  * 2010-03-22     Bernard      first version
  */
- 
+
 #include <rtthread.h>
 
 #if defined(RT_USING_FINSH) && !defined(FINSH_USING_SYMTAB)
diff --git a/components/libc/aio/posix_aio.c b/components/libc/aio/posix_aio.c
index 3eb7634495..66f15e4c57 100644
--- a/components/libc/aio/posix_aio.c
+++ b/components/libc/aio/posix_aio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -22,25 +22,25 @@
 struct rt_workqueue* aio_queue = NULL;
 
 /**
- * The aio_cancel() function shall attempt to cancel one or more asynchronous I/O 
- * requests currently outstanding against file descriptor fildes. The aiocbp 
- * argument points to the asynchronous I/O control block for a particular request 
- * to be canceled. If aiocbp is NULL, then all outstanding cancelable asynchronous 
+ * The aio_cancel() function shall attempt to cancel one or more asynchronous I/O
+ * requests currently outstanding against file descriptor fildes. The aiocbp
+ * argument points to the asynchronous I/O control block for a particular request
+ * to be canceled. If aiocbp is NULL, then all outstanding cancelable asynchronous
  * I/O requests against fildes shall be canceled.
- * 
- * Normal asynchronous notification shall occur for asynchronous I/O operations 
- * that are successfully canceled. If there are requests that cannot be canceled, 
- * then the normal asynchronous completion process shall take place for those 
+ *
+ * Normal asynchronous notification shall occur for asynchronous I/O operations
+ * that are successfully canceled. If there are requests that cannot be canceled,
+ * then the normal asynchronous completion process shall take place for those
  * requests when they are completed.
- * 
- * For requested operations that are successfully canceled, the associated error 
- * status shall be set to [ECANCELED] and the return status shall be -1. For 
- * requested operations that are not successfully canceled, the aiocbp shall not 
+ *
+ * For requested operations that are successfully canceled, the associated error
+ * status shall be set to [ECANCELED] and the return status shall be -1. For
+ * requested operations that are not successfully canceled, the aiocbp shall not
  * be modified by aio_cancel().
- * 
- * If aiocbp is not NULL, then if fildes does not have the same value as the file 
+ *
+ * If aiocbp is not NULL, then if fildes does not have the same value as the file
  * descriptor with which the asynchronous operation was initiated, unspecified results occur.
- * 
+ *
  * Which operations are cancelable is implementation-defined.
  */
 int aio_cancel(int fd, struct aiocb *cb)
@@ -61,9 +61,9 @@ int aio_cancel(int fd, struct aiocb *cb)
 }
 
 /**
- * The aio_error() function shall return the error status associated with the 
- * aiocb structure referenced by the aiocbp argument. The error status for an 
- * asynchronous I/O operation is the errno value that would be set by the corresponding 
+ * The aio_error() function shall return the error status associated with the
+ * aiocb structure referenced by the aiocbp argument. The error status for an
+ * asynchronous I/O operation is the errno value that would be set by the corresponding
  * read(), write(),
  */
 int aio_error (const struct aiocb *cb)
@@ -77,44 +77,44 @@ int aio_error (const struct aiocb *cb)
 }
 
 /**
- * The aio_fsync() function shall asynchronously perform a file synchronization 
- * operation, as specified by the op argument, for I/O operations associated with 
- * the file indicated by the file descriptor aio_fildes member of the aiocb 
- * structure referenced by the aiocbp argument and queued at the time of the 
- * call to aio_fsync(). The function call shall return when the synchronization 
- * request has been initiated or queued to the file or device (even when the data 
+ * The aio_fsync() function shall asynchronously perform a file synchronization
+ * operation, as specified by the op argument, for I/O operations associated with
+ * the file indicated by the file descriptor aio_fildes member of the aiocb
+ * structure referenced by the aiocbp argument and queued at the time of the
+ * call to aio_fsync(). The function call shall return when the synchronization
+ * request has been initiated or queued to the file or device (even when the data
  * cannot be synchronized immediately).
- * 
- * option: If op is O_DSYNC, all currently queued I/O operations shall be completed 
- * as if by a call to fdatasync(); that is, as defined for synchronized I/O data 
+ *
+ * option: If op is O_DSYNC, all currently queued I/O operations shall be completed
+ * as if by a call to fdatasync(); that is, as defined for synchronized I/O data
  * integrity completion.
- * 
- * option: If op is O_SYNC, all currently queued I/O operations shall be completed 
- * as if by a call to fsync(); that is, as defined for synchronized I/O file integrity 
- * completion. If the aio_fsync() function fails, or if the operation queued by 
- * aio_fsync() fails, then outstanding I/O operations are not guaranteed to have 
+ *
+ * option: If op is O_SYNC, all currently queued I/O operations shall be completed
+ * as if by a call to fsync(); that is, as defined for synchronized I/O file integrity
+ * completion. If the aio_fsync() function fails, or if the operation queued by
+ * aio_fsync() fails, then outstanding I/O operations are not guaranteed to have
  * been completed.
- * 
- * If aio_fsync() succeeds, then it is only the I/O that was queued at the time 
- * of the call to aio_fsync() that is guaranteed to be forced to the relevant 
+ *
+ * If aio_fsync() succeeds, then it is only the I/O that was queued at the time
+ * of the call to aio_fsync() that is guaranteed to be forced to the relevant
  * completion state. The completion of subsequent I/O on the file descriptor is
  * not guaranteed to be completed in a synchronized fashion.
- * 
- * The aiocbp argument refers to an asynchronous I/O control block. The aiocbp 
- * value may be used as an argument to aio_error() and aio_return() in order to 
- * determine the error status and return status, respectively, of the asynchronous 
- * operation while it is proceeding. When the request is queued, the error status 
- * for the operation is [EINPROGRESS]. When all data has been successfully transferred, 
- * the error status shall be reset to reflect the success or failure of the operation. 
- * If the operation does not complete successfully, the error status for the 
- * operation shall be set to indicate the error. The aio_sigevent member determines 
- * the asynchronous notification to occur as specified in Signal Generation and 
- * Delivery when all operations have achieved synchronized I/O completion. All 
- * other members of the structure referenced by aiocbp are ignored. If the control 
- * block referenced by aiocbp becomes an illegal address prior to asynchronous 
+ *
+ * The aiocbp argument refers to an asynchronous I/O control block. The aiocbp
+ * value may be used as an argument to aio_error() and aio_return() in order to
+ * determine the error status and return status, respectively, of the asynchronous
+ * operation while it is proceeding. When the request is queued, the error status
+ * for the operation is [EINPROGRESS]. When all data has been successfully transferred,
+ * the error status shall be reset to reflect the success or failure of the operation.
+ * If the operation does not complete successfully, the error status for the
+ * operation shall be set to indicate the error. The aio_sigevent member determines
+ * the asynchronous notification to occur as specified in Signal Generation and
+ * Delivery when all operations have achieved synchronized I/O completion. All
+ * other members of the structure referenced by aiocbp are ignored. If the control
+ * block referenced by aiocbp becomes an illegal address prior to asynchronous
  * I/O completion, then the behavior is undefined.
- * 
- * If the aio_fsync() function fails or aiocbp indicates an error condition, 
+ *
+ * If the aio_fsync() function fails or aiocbp indicates an error condition,
  * data is not guaranteed to have been successfully transferred.
  */
 static void aio_fync_work(struct rt_work* work, void* work_data)
@@ -169,7 +169,7 @@ static void aio_read_work(struct rt_work* work, void* work_data)
     level = rt_hw_interrupt_disable();
     if (len <= 0)
         cb->aio_result = errno;
-    else 
+    else
         cb->aio_result = len;
     rt_hw_interrupt_enable(level);
 
@@ -177,51 +177,51 @@ static void aio_read_work(struct rt_work* work, void* work_data)
 }
 
 /**
- * The aio_read() function shall read aiocbp->aio_nbytes from the file associated 
- * with aiocbp->aio_fildes into the buffer pointed to by aiocbp->aio_buf. The 
- * function call shall return when the read request has been initiated or queued 
+ * The aio_read() function shall read aiocbp->aio_nbytes from the file associated
+ * with aiocbp->aio_fildes into the buffer pointed to by aiocbp->aio_buf. The
+ * function call shall return when the read request has been initiated or queued
  * to the file or device (even when the data cannot be delivered immediately).
- * 
- * If prioritized I/O is supported for this file, then the asynchronous operation 
- * shall be submitted at a priority equal to a base scheduling priority minus 
- * aiocbp->aio_reqprio. If Thread Execution Scheduling is not supported, then 
+ *
+ * If prioritized I/O is supported for this file, then the asynchronous operation
+ * shall be submitted at a priority equal to a base scheduling priority minus
+ * aiocbp->aio_reqprio. If Thread Execution Scheduling is not supported, then
  * the base scheduling priority is that of the calling process;
- * 
- * otherwise, the base scheduling priority is that of the calling thread. 
- * 
- * The aiocbp value may be used as an argument to aio_error() and aio_return() 
- * in order to determine the error status and return status, respectively, of 
- * the asynchronous operation while it is proceeding. If an error condition is 
- * encountered during queuing, the function call shall return without having 
- * initiated or queued the request. The requested operation takes place at the 
- * absolute position in the file as given by aio_offset, as if lseek() were called 
- * immediately prior to the operation with an offset equal to aio_offset and a 
- * whence equal to SEEK_SET. After a successful call to enqueue an asynchronous 
+ *
+ * otherwise, the base scheduling priority is that of the calling thread.
+ *
+ * The aiocbp value may be used as an argument to aio_error() and aio_return()
+ * in order to determine the error status and return status, respectively, of
+ * the asynchronous operation while it is proceeding. If an error condition is
+ * encountered during queuing, the function call shall return without having
+ * initiated or queued the request. The requested operation takes place at the
+ * absolute position in the file as given by aio_offset, as if lseek() were called
+ * immediately prior to the operation with an offset equal to aio_offset and a
+ * whence equal to SEEK_SET. After a successful call to enqueue an asynchronous
  * I/O operation, the value of the file offset for the file is unspecified.
  *
- * The aio_sigevent member specifies the notification which occurs when the 
+ * The aio_sigevent member specifies the notification which occurs when the
  * request is completed.
  *
  * The aiocbp->aio_lio_opcode field shall be ignored by aio_read().
- * 
- * The aiocbp argument points to an aiocb structure. If the buffer pointed to by 
- * aiocbp->aio_buf or the control block pointed to by aiocbp becomes an illegal 
+ *
+ * The aiocbp argument points to an aiocb structure. If the buffer pointed to by
+ * aiocbp->aio_buf or the control block pointed to by aiocbp becomes an illegal
  * address prior to asynchronous I/O completion, then the behavior is undefined.
- * 
- * Simultaneous asynchronous operations using the same aiocbp produce undefined 
+ *
+ * Simultaneous asynchronous operations using the same aiocbp produce undefined
  * results.
- * 
+ *
  * If synchronized I/O is enabled on the file associated with aiocbp->aio_fildes,
- * the behavior of this function shall be according to the definitions of synchronized 
- * I/O data integrity completion and synchronized I/O file integrity completion. 
- * 
- * For any system action that changes the process memory space while an asynchronous 
- * I/O is outstanding to the address range being changed, the result of that action 
+ * the behavior of this function shall be according to the definitions of synchronized
+ * I/O data integrity completion and synchronized I/O file integrity completion.
+ *
+ * For any system action that changes the process memory space while an asynchronous
+ * I/O is outstanding to the address range being changed, the result of that action
  * is undefined.
- * 
- * For regular files, no data transfer shall occur past the offset maximum 
+ *
+ * For regular files, no data transfer shall occur past the offset maximum
  * established in the open file description associated with aiocbp->aio_fildes.
- * 
+ *
  */
 int aio_read(struct aiocb *cb)
 {
@@ -242,16 +242,16 @@ int aio_read(struct aiocb *cb)
 }
 
 /**
- * The aio_return() function shall return the return status associated with the 
- * aiocb structure referenced by the aiocbp argument. The return status for an 
- * asynchronous I/O operation is the value that would be returned by the corresponding 
- * read(), write(), or fsync() function call. If the error status for the operation 
- * is equal to [EINPROGRESS], then the return status for the operation is undefined. 
- * The aio_return() function may be called exactly once to retrieve the return 
- * status of a given asynchronous operation; thereafter, if the same aiocb structure 
- * is used in a call to aio_return() or aio_error(), an error may be returned. 
- * When the aiocb structure referred to by aiocbp is used to submit another asynchronous 
- * operation, then aio_return() may be successfully used to retrieve the return 
+ * The aio_return() function shall return the return status associated with the
+ * aiocb structure referenced by the aiocbp argument. The return status for an
+ * asynchronous I/O operation is the value that would be returned by the corresponding
+ * read(), write(), or fsync() function call. If the error status for the operation
+ * is equal to [EINPROGRESS], then the return status for the operation is undefined.
+ * The aio_return() function may be called exactly once to retrieve the return
+ * status of a given asynchronous operation; thereafter, if the same aiocb structure
+ * is used in a call to aio_return() or aio_error(), an error may be returned.
+ * When the aiocb structure referred to by aiocbp is used to submit another asynchronous
+ * operation, then aio_return() may be successfully used to retrieve the return
  * status of that operation.
  */
 ssize_t  aio_return(struct aiocb *cb)
@@ -268,23 +268,23 @@ ssize_t  aio_return(struct aiocb *cb)
 }
 
 /**
- * The aio_suspend() function shall suspend the calling thread until at least 
- * one of the asynchronous I/O operations referenced by the list argument has 
- * completed, until a signal interrupts the function, or, if timeout is not NULL, 
- * until the time interval specified by timeout has passed. If any of the aiocb 
- * structures in the list correspond to completed asynchronous I/O operations 
- * (that is, the error status for the operation is not equal to [EINPROGRESS]) 
- * at the time of the call, the function shall return without suspending the 
- * calling thread. The list argument is an array of pointers to asynchronous I/O 
- * control blocks. The nent argument indicates the number of elements in the 
- * array. Each aiocb structure pointed to has been used in initiating an asynchronous 
- * I/O request via aio_read(), aio_write(), or lio_listio(). This array may 
- * contain null pointers, which are ignored. If this array contains pointers 
- * that refer to aiocb structures that have not been used in submitting asynchronous 
+ * The aio_suspend() function shall suspend the calling thread until at least
+ * one of the asynchronous I/O operations referenced by the list argument has
+ * completed, until a signal interrupts the function, or, if timeout is not NULL,
+ * until the time interval specified by timeout has passed. If any of the aiocb
+ * structures in the list correspond to completed asynchronous I/O operations
+ * (that is, the error status for the operation is not equal to [EINPROGRESS])
+ * at the time of the call, the function shall return without suspending the
+ * calling thread. The list argument is an array of pointers to asynchronous I/O
+ * control blocks. The nent argument indicates the number of elements in the
+ * array. Each aiocb structure pointed to has been used in initiating an asynchronous
+ * I/O request via aio_read(), aio_write(), or lio_listio(). This array may
+ * contain null pointers, which are ignored. If this array contains pointers
+ * that refer to aiocb structures that have not been used in submitting asynchronous
  * I/O, the effect is undefined.
- * 
- * If the time interval indicated in the timespec structure pointed to by timeout 
- * passes before any of the I/O operations referenced by list are completed, then 
+ *
+ * If the time interval indicated in the timespec structure pointed to by timeout
+ * passes before any of the I/O operations referenced by list are completed, then
  * aio_suspend() shall return with an error.
  */
 int aio_suspend(const struct aiocb *const list[], int nent,
@@ -315,7 +315,7 @@ static void aio_write_work(struct rt_work* work, void* work_data)
     level = rt_hw_interrupt_disable();
     if (len <= 0)
         cb->aio_result = errno;
-    else 
+    else
         cb->aio_result = len;
     rt_hw_interrupt_enable(level);
 
@@ -323,42 +323,42 @@ static void aio_write_work(struct rt_work* work, void* work_data)
 }
 
 /**
- * The aio_write() function shall write aiocbp->aio_nbytes to the file associated 
- * with aiocbp->aio_fildes from the buffer pointed to by aiocbp->aio_buf. The 
- * function shall return when the write request has been initiated or, at a minimum, 
+ * The aio_write() function shall write aiocbp->aio_nbytes to the file associated
+ * with aiocbp->aio_fildes from the buffer pointed to by aiocbp->aio_buf. The
+ * function shall return when the write request has been initiated or, at a minimum,
  * queued to the file or device.
- * 
- * The aiocbp argument may be used as an argument to aio_error() and aio_return() 
- * in order to determine the error status and return status, respectively, of the 
+ *
+ * The aiocbp argument may be used as an argument to aio_error() and aio_return()
+ * in order to determine the error status and return status, respectively, of the
  * asynchronous operation while it is proceeding.
- * 
- * The aiocbp argument points to an aiocb structure. If the buffer pointed to by 
- * aiocbp->aio_buf or the control block pointed to by aiocbp becomes an illegal 
+ *
+ * The aiocbp argument points to an aiocb structure. If the buffer pointed to by
+ * aiocbp->aio_buf or the control block pointed to by aiocbp becomes an illegal
  * address prior to asynchronous I/O completion, then the behavior is undefined.
- * 
- * If O_APPEND is not set for the file descriptor aio_fildes, then the requested 
- * operation shall take place at the absolute position in the file as given by 
- * aio_offset, as if lseek() were called immediately prior to the operation with 
- * an offset equal to aio_offset and a whence equal to SEEK_SET. If O_APPEND is 
- * set for the file descriptor, or if aio_fildes is associated with a device that 
- * is incapable of seeking, write operations append to the file in the same order 
- * as the calls were made, except under circumstances described in Asynchronous 
- * I/O. After a successful call to enqueue an asynchronous I/O operation, the value 
+ *
+ * If O_APPEND is not set for the file descriptor aio_fildes, then the requested
+ * operation shall take place at the absolute position in the file as given by
+ * aio_offset, as if lseek() were called immediately prior to the operation with
+ * an offset equal to aio_offset and a whence equal to SEEK_SET. If O_APPEND is
+ * set for the file descriptor, or if aio_fildes is associated with a device that
+ * is incapable of seeking, write operations append to the file in the same order
+ * as the calls were made, except under circumstances described in Asynchronous
+ * I/O. After a successful call to enqueue an asynchronous I/O operation, the value
  * of the file offset for the file is unspecified.
- * 
- * The aio_sigevent member specifies the notification which occurs when the request 
+ *
+ * The aio_sigevent member specifies the notification which occurs when the request
  * is completed.
- * 
+ *
  * The aiocbp->aio_lio_opcode field shall be ignored by aio_write().
- * 
- * Simultaneous asynchronous operations using the same aiocbp produce undefined 
+ *
+ * Simultaneous asynchronous operations using the same aiocbp produce undefined
  * results.
- * 
- * If synchronized I/O is enabled on the file associated with aiocbp->aio_fildes, 
- * the behavior of this function shall be according to the definitions of synchronized 
+ *
+ * If synchronized I/O is enabled on the file associated with aiocbp->aio_fildes,
+ * the behavior of this function shall be according to the definitions of synchronized
  * I/O data integrity completion, and synchronized I/O file integrity completion.
- *  
- * For regular files, no data transfer shall occur past the offset maximum established 
+ *
+ * For regular files, no data transfer shall occur past the offset maximum established
  * in the open file description associated with aiocbp->aio_fildes.
  */
 int aio_write(struct aiocb *cb)
@@ -385,69 +385,69 @@ int aio_write(struct aiocb *cb)
 }
 
 /**
- * The lio_listio() function shall initiate a list of I/O requests with a single 
+ * The lio_listio() function shall initiate a list of I/O requests with a single
  * function call.
- * 
- * The mode argument takes one of the values LIO_WAIT or LIO_NOWAIT declared in 
- * <aio.h> and determines whether the function returns when the I/O operations 
- * have been completed, or as soon as the operations have been queued. If the 
- * mode argument is LIO_WAIT, the function shall wait until all I/O is complete 
+ *
+ * The mode argument takes one of the values LIO_WAIT or LIO_NOWAIT declared in
+ * <aio.h> and determines whether the function returns when the I/O operations
+ * have been completed, or as soon as the operations have been queued. If the
+ * mode argument is LIO_WAIT, the function shall wait until all I/O is complete
  * and the sig argument shall be ignored.
- * 
- * If the mode argument is LIO_NOWAIT, the function shall return immediately, and 
- * asynchronous notification shall occur, according to the sig argument, when all 
- * the I/O operations complete. If sig is NULL, then no asynchronous notification 
- * shall occur. If sig is not NULL, asynchronous notification occurs as specified 
+ *
+ * If the mode argument is LIO_NOWAIT, the function shall return immediately, and
+ * asynchronous notification shall occur, according to the sig argument, when all
+ * the I/O operations complete. If sig is NULL, then no asynchronous notification
+ * shall occur. If sig is not NULL, asynchronous notification occurs as specified
  * in Signal Generation and Delivery when all the requests in list have completed.
- * 
+ *
  * The I/O requests enumerated by list are submitted in an unspecified order.
- * 
- * The list argument is an array of pointers to aiocb structures. The array contains 
+ *
+ * The list argument is an array of pointers to aiocb structures. The array contains
  * nent elements. The array may contain NULL elements, which shall be ignored.
- * 
- * If the buffer pointed to by list or the aiocb structures pointed to by the 
- * elements of the array list become illegal addresses before all asynchronous I/O 
- * completed and, if necessary, the notification is sent, then the behavior is 
- * undefined. If the buffers pointed to by the aio_buf member of the aiocb structure 
- * pointed to by the elements of the array list become illegal addresses prior to 
- * the asynchronous I/O associated with that aiocb structure being completed, the 
+ *
+ * If the buffer pointed to by list or the aiocb structures pointed to by the
+ * elements of the array list become illegal addresses before all asynchronous I/O
+ * completed and, if necessary, the notification is sent, then the behavior is
+ * undefined. If the buffers pointed to by the aio_buf member of the aiocb structure
+ * pointed to by the elements of the array list become illegal addresses prior to
+ * the asynchronous I/O associated with that aiocb structure being completed, the
  * behavior is undefined.
- * 
- * The aio_lio_opcode field of each aiocb structure specifies the operation to be 
- * performed. The supported operations are LIO_READ, LIO_WRITE, and LIO_NOP; these 
- * symbols are defined in <aio.h>. The LIO_NOP operation causes the list entry to 
- * be ignored. If the aio_lio_opcode element is equal to LIO_READ, then an I/O operation 
- * is submitted as if by a call to aio_read() with the aiocbp equal to the address 
- * of the aiocb structure. If the aio_lio_opcode element is equal to LIO_WRITE, then 
- * an I/O operation is submitted as if by a call to aio_write() with the aiocbp equal 
+ *
+ * The aio_lio_opcode field of each aiocb structure specifies the operation to be
+ * performed. The supported operations are LIO_READ, LIO_WRITE, and LIO_NOP; these
+ * symbols are defined in <aio.h>. The LIO_NOP operation causes the list entry to
+ * be ignored. If the aio_lio_opcode element is equal to LIO_READ, then an I/O operation
+ * is submitted as if by a call to aio_read() with the aiocbp equal to the address
+ * of the aiocb structure. If the aio_lio_opcode element is equal to LIO_WRITE, then
+ * an I/O operation is submitted as if by a call to aio_write() with the aiocbp equal
  * to the address of the aiocb structure.
- * 
- * The aio_fildes member specifies the file descriptor on which the operation is to 
+ *
+ * The aio_fildes member specifies the file descriptor on which the operation is to
  * be performed.
- * 
- * The aio_buf member specifies the address of the buffer to or from which the data 
+ *
+ * The aio_buf member specifies the address of the buffer to or from which the data
  * is transferred.
- * 
+ *
  * The aio_nbytes member specifies the number of bytes of data to be transferred.
- * 
- * The members of the aiocb structure further describe the I/O operation to be 
- * performed, in a manner identical to that of the corresponding aiocb structure 
+ *
+ * The members of the aiocb structure further describe the I/O operation to be
+ * performed, in a manner identical to that of the corresponding aiocb structure
  * when used by the aio_read() and aio_write() functions.
- * 
- * The nent argument specifies how many elements are members of the list; that is, 
+ *
+ * The nent argument specifies how many elements are members of the list; that is,
  * the length of the array.
- * 
- * The behavior of this function is altered according to the definitions of synchronized 
- * I/O data integrity completion and synchronized I/O file integrity completion if 
+ *
+ * The behavior of this function is altered according to the definitions of synchronized
+ * I/O data integrity completion and synchronized I/O file integrity completion if
  * synchronized I/O is enabled on the file associated with aio_fildes.
- * 
- * For regular files, no data transfer shall occur past the offset maximum established 
+ *
+ * For regular files, no data transfer shall occur past the offset maximum established
  * in the open file description associated with aiocbp->aio_fildes.
- * 
- * If sig->sigev_notify is SIGEV_THREAD and sig->sigev_notify_attributes is a 
- * non-null pointer and the block pointed to by this pointer becomes an illegal 
- * address prior to all asynchronous I/O being completed, then the behavior is 
- * undefined. 
+ *
+ * If sig->sigev_notify is SIGEV_THREAD and sig->sigev_notify_attributes is a
+ * non-null pointer and the block pointed to by this pointer becomes an illegal
+ * address prior to all asynchronous I/O being completed, then the behavior is
+ * undefined.
  */
 int lio_listio(int mode, struct aiocb * const list[], int nent,
             struct sigevent *sig)
diff --git a/components/libc/aio/posix_aio.h b/components/libc/aio/posix_aio.h
index f20ed48cb3..de11738515 100644
--- a/components/libc/aio/posix_aio.h
+++ b/components/libc/aio/posix_aio.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/dirent.h b/components/libc/compilers/armlibc/dirent.h
index d3bc58cbc5..2c0521d2e3 100644
--- a/components/libc/compilers/armlibc/dirent.h
+++ b/components/libc/compilers/armlibc/dirent.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -18,32 +18,32 @@
  */
 
 /* File types */
-#define FT_REGULAR		0	/* regular file */
-#define FT_SOCKET		1	/* socket file  */
-#define FT_DIRECTORY	2	/* directory    */
-#define FT_USER			3	/* user defined */
+#define FT_REGULAR      0   /* regular file */
+#define FT_SOCKET       1   /* socket file  */
+#define FT_DIRECTORY    2   /* directory    */
+#define FT_USER         3   /* user defined */
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #ifndef HAVE_DIR_STRUCTURE
-typedef struct 
+typedef struct
 {
-	int fd;							/* directory file */
-	char buf[512];
-	int num;
-	int cur;
+    int fd;                         /* directory file */
+    char buf[512];
+    int num;
+    int cur;
 } DIR;
 #endif
 
 #ifndef HAVE_DIRENT_STRUCTURE
 struct dirent
 {
-	rt_uint8_t  d_type;				/* The type of the file */
-	rt_uint8_t  d_namlen;			/* The length of the not including the terminating null file name */
-	rt_uint16_t d_reclen;			/* length of this record */
-	char d_name[256];				/* The null-terminated file name */
+    rt_uint8_t  d_type;             /* The type of the file */
+    rt_uint8_t  d_namlen;           /* The length of the not including the terminating null file name */
+    rt_uint16_t d_reclen;           /* length of this record */
+    char d_name[256];               /* The null-terminated file name */
 };
 #endif
 
diff --git a/components/libc/compilers/armlibc/fcntl.h b/components/libc/compilers/armlibc/fcntl.h
index 3e650a8471..f247b926e9 100644
--- a/components/libc/compilers/armlibc/fcntl.h
+++ b/components/libc/compilers/armlibc/fcntl.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/libc.c b/components/libc/compilers/armlibc/libc.c
index fee390d4b4..971ddb8d49 100644
--- a/components/libc/compilers/armlibc/libc.c
+++ b/components/libc/compilers/armlibc/libc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/libc.h b/components/libc/compilers/armlibc/libc.h
index b9b1b6212d..aecf8cdc50 100644
--- a/components/libc/compilers/armlibc/libc.h
+++ b/components/libc/compilers/armlibc/libc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/libc_syms.c b/components/libc/compilers/armlibc/libc_syms.c
index a2e8af17f1..829d57b559 100644
--- a/components/libc/compilers/armlibc/libc_syms.c
+++ b/components/libc/compilers/armlibc/libc_syms.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/mem_std.c b/components/libc/compilers/armlibc/mem_std.c
index e160104a25..c350aa68fa 100644
--- a/components/libc/compilers/armlibc/mem_std.c
+++ b/components/libc/compilers/armlibc/mem_std.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/stdio.c b/components/libc/compilers/armlibc/stdio.c
index 5262a4dd92..c786c78aa5 100644
--- a/components/libc/compilers/armlibc/stdio.c
+++ b/components/libc/compilers/armlibc/stdio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/sys/errno.h b/components/libc/compilers/armlibc/sys/errno.h
index 9c4307ebfb..74cc986f7c 100644
--- a/components/libc/compilers/armlibc/sys/errno.h
+++ b/components/libc/compilers/armlibc/sys/errno.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/sys/ioctl.h b/components/libc/compilers/armlibc/sys/ioctl.h
index 033a57014a..df17b19a61 100644
--- a/components/libc/compilers/armlibc/sys/ioctl.h
+++ b/components/libc/compilers/armlibc/sys/ioctl.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/sys/mman.h b/components/libc/compilers/armlibc/sys/mman.h
index 8c61b32b7c..6a260ccd70 100644
--- a/components/libc/compilers/armlibc/sys/mman.h
+++ b/components/libc/compilers/armlibc/sys/mman.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/sys/stat.h b/components/libc/compilers/armlibc/sys/stat.h
index ce95230e88..c4b42083c4 100644
--- a/components/libc/compilers/armlibc/sys/stat.h
+++ b/components/libc/compilers/armlibc/sys/stat.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/sys/types.h b/components/libc/compilers/armlibc/sys/types.h
index 491445d72b..a6b245b81c 100644
--- a/components/libc/compilers/armlibc/sys/types.h
+++ b/components/libc/compilers/armlibc/sys/types.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/sys/unistd.h b/components/libc/compilers/armlibc/sys/unistd.h
index ee1e1c4db9..7752a1caf7 100644
--- a/components/libc/compilers/armlibc/sys/unistd.h
+++ b/components/libc/compilers/armlibc/sys/unistd.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/syscalls.c b/components/libc/compilers/armlibc/syscalls.c
index d17460b413..ce4c358993 100644
--- a/components/libc/compilers/armlibc/syscalls.c
+++ b/components/libc/compilers/armlibc/syscalls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -9,7 +9,7 @@
  * 2013-11-24     aozima       fixed _sys_read()/_sys_write() issues.
  * 2014-08-03     bernard      If using msh, use system() implementation
  *                             in msh.
- * 2020-08-05     Meco Man     fixed _sys_flen() compiling-warning when 
+ * 2020-08-05     Meco Man     fixed _sys_flen() compiling-warning when
  *                             RT_USING_DFS is not defined
  * 2020-02-13     Meco Man     re-implement exit() and abort()
  * 2020-02-14     Meco Man     implement _sys_tmpnam()
@@ -315,7 +315,7 @@ int system(const char *string)
 #ifdef __MICROLIB
 #include <stdio.h>
 
-int fputc(int c, FILE *f) 
+int fputc(int c, FILE *f)
 {
     char ch[2] = {0};
 
@@ -324,7 +324,7 @@ int fputc(int c, FILE *f)
     return 1;
 }
 
-int fgetc(FILE *f) 
+int fgetc(FILE *f)
 {
 #ifdef RT_USING_POSIX
     char ch;
diff --git a/components/libc/compilers/armlibc/unistd.h b/components/libc/compilers/armlibc/unistd.h
index 736fc219a8..cd77a12e3b 100644
--- a/components/libc/compilers/armlibc/unistd.h
+++ b/components/libc/compilers/armlibc/unistd.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/common/stdlib.c b/components/libc/compilers/common/stdlib.c
index 48a86098cd..9d8952e99e 100644
--- a/components/libc/compilers/common/stdlib.c
+++ b/components/libc/compilers/common/stdlib.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/common/sys/time.h b/components/libc/compilers/common/sys/time.h
index 5bf5bc5e92..67ef1d2faa 100644
--- a/components/libc/compilers/common/sys/time.h
+++ b/components/libc/compilers/common/sys/time.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/common/termios.h b/components/libc/compilers/common/termios.h
index 414d0c0cb3..2960d52c58 100644
--- a/components/libc/compilers/common/termios.h
+++ b/components/libc/compilers/common/termios.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/common/time.c b/components/libc/compilers/common/time.c
index ed72cc1f3f..0bad6bdf8e 100644
--- a/components/libc/compilers/common/time.c
+++ b/components/libc/compilers/common/time.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -181,7 +181,7 @@ RTM_EXPORT(ctime);
  *
  * @param time_t * t the timestamp pointer, if not used, keep NULL.
  *
- * @return The value ((time_t)-1) is returned if the calendar time is not available. 
+ * @return The value ((time_t)-1) is returned if the calendar time is not available.
  *         If timer is not a NULL pointer, the return value is also stored in timer.
  *
  */
@@ -366,7 +366,7 @@ int settimeofday(const struct timeval *tv, const struct timezone *tz)
 RTM_EXPORT(settimeofday);
 
 /* inherent in the toolchain */
-RTM_EXPORT(difftime); 
+RTM_EXPORT(difftime);
 RTM_EXPORT(strftime);
 
 #ifdef RT_USING_POSIX
diff --git a/components/libc/compilers/common/unistd.c b/components/libc/compilers/common/unistd.c
index 0966242e55..20130cbb8a 100644
--- a/components/libc/compilers/common/unistd.c
+++ b/components/libc/compilers/common/unistd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/dirent.h b/components/libc/compilers/dlib/dirent.h
index 4c897cc550..2c0521d2e3 100644
--- a/components/libc/compilers/dlib/dirent.h
+++ b/components/libc/compilers/dlib/dirent.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/environ.c b/components/libc/compilers/dlib/environ.c
index ac19758838..84b04fda55 100644
--- a/components/libc/compilers/dlib/environ.c
+++ b/components/libc/compilers/dlib/environ.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/fcntl.h b/components/libc/compilers/dlib/fcntl.h
index ce95230e88..c4b42083c4 100644
--- a/components/libc/compilers/dlib/fcntl.h
+++ b/components/libc/compilers/dlib/fcntl.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/libc.c b/components/libc/compilers/dlib/libc.c
index 8b42411a6b..d0dca7c5f6 100644
--- a/components/libc/compilers/dlib/libc.c
+++ b/components/libc/compilers/dlib/libc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/libc.h b/components/libc/compilers/dlib/libc.h
index 5b46bee0c8..fc3cafca78 100644
--- a/components/libc/compilers/dlib/libc.h
+++ b/components/libc/compilers/dlib/libc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/stdio.c b/components/libc/compilers/dlib/stdio.c
index b35ade7a38..c11157d759 100644
--- a/components/libc/compilers/dlib/stdio.c
+++ b/components/libc/compilers/dlib/stdio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/sys/errno.h b/components/libc/compilers/dlib/sys/errno.h
index 1ad4c8acc0..54a1d33cd0 100644
--- a/components/libc/compilers/dlib/sys/errno.h
+++ b/components/libc/compilers/dlib/sys/errno.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/sys/mman.h b/components/libc/compilers/dlib/sys/mman.h
index 8c61b32b7c..6a260ccd70 100644
--- a/components/libc/compilers/dlib/sys/mman.h
+++ b/components/libc/compilers/dlib/sys/mman.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/sys/signal.h b/components/libc/compilers/dlib/sys/signal.h
index 22adb1228b..a30235f2b2 100644
--- a/components/libc/compilers/dlib/sys/signal.h
+++ b/components/libc/compilers/dlib/sys/signal.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/sys/stat.h b/components/libc/compilers/dlib/sys/stat.h
index ce95230e88..c4b42083c4 100644
--- a/components/libc/compilers/dlib/sys/stat.h
+++ b/components/libc/compilers/dlib/sys/stat.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/sys/types.h b/components/libc/compilers/dlib/sys/types.h
index 7e14bbbee3..6e2d1ce839 100644
--- a/components/libc/compilers/dlib/sys/types.h
+++ b/components/libc/compilers/dlib/sys/types.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/sys/unistd.h b/components/libc/compilers/dlib/sys/unistd.h
index 5b86822635..14966a2bad 100644
--- a/components/libc/compilers/dlib/sys/unistd.h
+++ b/components/libc/compilers/dlib/sys/unistd.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -21,22 +21,22 @@
 
 #include <dfs_posix.h>
 #else
-#define	_FREAD		0x0001	/* read enabled */
-#define	_FWRITE		0x0002	/* write enabled */
-#define	_FAPPEND	0x0008	/* append (writes guaranteed at the end) */
-#define	_FMARK		0x0010	/* internal; mark during gc() */
-#define	_FDEFER		0x0020	/* internal; defer for next gc pass */
-#define	_FASYNC		0x0040	/* signal pgrp when data ready */
-#define	_FSHLOCK	0x0080	/* BSD flock() shared lock present */
-#define	_FEXLOCK	0x0100	/* BSD flock() exclusive lock present */
-#define	_FCREAT		0x0200	/* open with file create */
-#define	_FTRUNC		0x0400	/* open with truncation */
-#define	_FEXCL		0x0800	/* error on open if file exists */
-#define	_FNBIO		0x1000	/* non blocking I/O (sys5 style) */
-#define	_FSYNC		0x2000	/* do all writes synchronously */
-#define	_FNONBLOCK	0x4000	/* non blocking I/O (POSIX style) */
-#define	_FNDELAY	_FNONBLOCK	/* non blocking I/O (4.2 style) */
-#define	_FNOCTTY	0x8000	/* don't assign a ctty on this open */
+#define _FREAD      0x0001  /* read enabled */
+#define _FWRITE     0x0002  /* write enabled */
+#define _FAPPEND    0x0008  /* append (writes guaranteed at the end) */
+#define _FMARK      0x0010  /* internal; mark during gc() */
+#define _FDEFER     0x0020  /* internal; defer for next gc pass */
+#define _FASYNC     0x0040  /* signal pgrp when data ready */
+#define _FSHLOCK    0x0080  /* BSD flock() shared lock present */
+#define _FEXLOCK    0x0100  /* BSD flock() exclusive lock present */
+#define _FCREAT     0x0200  /* open with file create */
+#define _FTRUNC     0x0400  /* open with truncation */
+#define _FEXCL      0x0800  /* error on open if file exists */
+#define _FNBIO      0x1000  /* non blocking I/O (sys5 style) */
+#define _FSYNC      0x2000  /* do all writes synchronously */
+#define _FNONBLOCK  0x4000  /* non blocking I/O (POSIX style) */
+#define _FNDELAY    _FNONBLOCK  /* non blocking I/O (4.2 style) */
+#define _FNOCTTY    0x8000  /* don't assign a ctty on this open */
 
 #endif
 
diff --git a/components/libc/compilers/dlib/syscall_close.c b/components/libc/compilers/dlib/syscall_close.c
index f46162deb7..7ed1cc2f2d 100644
--- a/components/libc/compilers/dlib/syscall_close.c
+++ b/components/libc/compilers/dlib/syscall_close.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/syscall_lseek.c b/components/libc/compilers/dlib/syscall_lseek.c
index b79cc410b7..47a069bf0a 100644
--- a/components/libc/compilers/dlib/syscall_lseek.c
+++ b/components/libc/compilers/dlib/syscall_lseek.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/syscall_mem.c b/components/libc/compilers/dlib/syscall_mem.c
index 236ef1c12d..9c6de64455 100644
--- a/components/libc/compilers/dlib/syscall_mem.c
+++ b/components/libc/compilers/dlib/syscall_mem.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/syscall_open.c b/components/libc/compilers/dlib/syscall_open.c
index 96e02dc32a..37bfcecb47 100644
--- a/components/libc/compilers/dlib/syscall_open.c
+++ b/components/libc/compilers/dlib/syscall_open.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/syscall_read.c b/components/libc/compilers/dlib/syscall_read.c
index e248211486..afb661bd93 100644
--- a/components/libc/compilers/dlib/syscall_read.c
+++ b/components/libc/compilers/dlib/syscall_read.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/syscall_remove.c b/components/libc/compilers/dlib/syscall_remove.c
index f7e64d1997..7d74236f4c 100644
--- a/components/libc/compilers/dlib/syscall_remove.c
+++ b/components/libc/compilers/dlib/syscall_remove.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/syscall_write.c b/components/libc/compilers/dlib/syscall_write.c
index 85c0da22c3..de464530b8 100644
--- a/components/libc/compilers/dlib/syscall_write.c
+++ b/components/libc/compilers/dlib/syscall_write.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/syscalls.c b/components/libc/compilers/dlib/syscalls.c
index 007ea76bd1..e1c9562b3a 100644
--- a/components/libc/compilers/dlib/syscalls.c
+++ b/components/libc/compilers/dlib/syscalls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/dlib/unistd.h b/components/libc/compilers/dlib/unistd.h
index a07d8409c2..72b9d538ec 100644
--- a/components/libc/compilers/dlib/unistd.h
+++ b/components/libc/compilers/dlib/unistd.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/newlib/libc.c b/components/libc/compilers/newlib/libc.c
index 2234c36f98..9834a9a015 100644
--- a/components/libc/compilers/newlib/libc.c
+++ b/components/libc/compilers/newlib/libc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -19,7 +19,7 @@
 #include <pthread.h>
 #endif
 
-int	_EXFUN(putenv,(char *__string));
+int _EXFUN(putenv,(char *__string));
 
 int libc_system_init(void)
 {
diff --git a/components/libc/compilers/newlib/libc.h b/components/libc/compilers/newlib/libc.h
index 9a76ffb79f..c1f76d7605 100644
--- a/components/libc/compilers/newlib/libc.h
+++ b/components/libc/compilers/newlib/libc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/newlib/libc_syms.c b/components/libc/compilers/newlib/libc_syms.c
index 4b0ee355f0..aaf6980d6b 100644
--- a/components/libc/compilers/newlib/libc_syms.c
+++ b/components/libc/compilers/newlib/libc_syms.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/newlib/machine/time.h b/components/libc/compilers/newlib/machine/time.h
index d46533eb39..ff754d2473 100644
--- a/components/libc/compilers/newlib/machine/time.h
+++ b/components/libc/compilers/newlib/machine/time.h
@@ -9,4 +9,4 @@
 int nanosleep (const struct timespec *, struct timespec *);
 #endif
 
-#endif	/* _MACHTIME_H_ */
+#endif  /* _MACHTIME_H_ */
diff --git a/components/libc/compilers/newlib/minilib.c b/components/libc/compilers/newlib/minilib.c
index ca1bea0f91..f6df38f67b 100644
--- a/components/libc/compilers/newlib/minilib.c
+++ b/components/libc/compilers/newlib/minilib.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/newlib/stdio.c b/components/libc/compilers/newlib/stdio.c
index 233a447396..ce5bdb75cb 100644
--- a/components/libc/compilers/newlib/stdio.c
+++ b/components/libc/compilers/newlib/stdio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -15,7 +15,7 @@
 
 #define STDIO_DEVICE_NAME_MAX   32
 
-int	_EXFUN(fileno, (FILE *));
+int _EXFUN(fileno, (FILE *));
 
 static FILE* std_console = NULL;
 
@@ -48,7 +48,7 @@ int libc_stdio_set_console(const char* device_name, int mode)
         {
             _GLOBAL_REENT->_stdin  = std_console;
         }
-        else 
+        else
         {
             _GLOBAL_REENT->_stdin  = NULL;
         }
diff --git a/components/libc/compilers/newlib/sys/dirent.h b/components/libc/compilers/newlib/sys/dirent.h
index db8c0655a1..bfba586093 100644
--- a/components/libc/compilers/newlib/sys/dirent.h
+++ b/components/libc/compilers/newlib/sys/dirent.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -17,36 +17,36 @@
  */
 
 /* File types */
-#define FT_REGULAR		0	/* regular file */
-#define FT_SOCKET		1	/* socket file  */
-#define FT_DIRECTORY	2	/* directory    */
-#define FT_USER			3	/* user defined */
+#define FT_REGULAR      0   /* regular file */
+#define FT_SOCKET       1   /* socket file  */
+#define FT_DIRECTORY    2   /* directory    */
+#define FT_USER         3   /* user defined */
 
-#define DT_UNKNOWN		0x00
-#define DT_REG			0x01
-#define DT_DIR			0x02
+#define DT_UNKNOWN      0x00
+#define DT_REG          0x01
+#define DT_DIR          0x02
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #ifndef HAVE_DIR_STRUCTURE
-typedef struct 
+typedef struct
 {
-	int fd;							/* directory file */
-	char buf[512];
-	int num;
-	int cur;
+    int fd;                         /* directory file */
+    char buf[512];
+    int num;
+    int cur;
 } DIR;
 #endif
 
 #ifndef HAVE_DIRENT_STRUCTURE
 struct dirent
 {
-	rt_uint8_t  d_type;				/* The type of the file */
-	rt_uint8_t  d_namlen;			/* The length of the not including the terminating null file name */
-	rt_uint16_t d_reclen;			/* length of this record */
-	char d_name[256];				/* The null-terminated file name */
+    rt_uint8_t  d_type;             /* The type of the file */
+    rt_uint8_t  d_namlen;           /* The length of the not including the terminating null file name */
+    rt_uint16_t d_reclen;           /* length of this record */
+    char d_name[256];               /* The null-terminated file name */
 };
 #endif
 
diff --git a/components/libc/compilers/newlib/sys/mman.h b/components/libc/compilers/newlib/sys/mman.h
index 8c61b32b7c..6a260ccd70 100644
--- a/components/libc/compilers/newlib/sys/mman.h
+++ b/components/libc/compilers/newlib/sys/mman.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/newlib/sys/statfs.h b/components/libc/compilers/newlib/sys/statfs.h
index 3c923a21f9..0996af9a18 100644
--- a/components/libc/compilers/newlib/sys/statfs.h
+++ b/components/libc/compilers/newlib/sys/statfs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -13,9 +13,9 @@
 
 struct statfs
 {
-	rt_size_t f_bsize; 	 /* block size */
-	rt_size_t f_blocks;  /* total data blocks in file system */
-	rt_size_t f_bfree;	 /* free blocks in file system */
+    rt_size_t f_bsize;   /* block size */
+    rt_size_t f_blocks;  /* total data blocks in file system */
+    rt_size_t f_bfree;   /* free blocks in file system */
 };
 
 #endif
diff --git a/components/libc/compilers/newlib/sys/termios.h b/components/libc/compilers/newlib/sys/termios.h
index ce95230e88..c4b42083c4 100644
--- a/components/libc/compilers/newlib/sys/termios.h
+++ b/components/libc/compilers/newlib/sys/termios.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/newlib/syscalls.c b/components/libc/compilers/newlib/syscalls.c
index e54d7583cb..6cbc11fd6a 100644
--- a/components/libc/compilers/newlib/syscalls.c
+++ b/components/libc/compilers/newlib/syscalls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/getline/posix_getline.c b/components/libc/getline/posix_getline.c
index 99bcf5363e..794ac3a07d 100644
--- a/components/libc/getline/posix_getline.c
+++ b/components/libc/getline/posix_getline.c
@@ -1,11 +1,11 @@
 /* posix_getline.c
  * RT-Thread POSIX
  * getdelim(), getline() - read a delimited record from stream, ersatz implementation
- * This code is unlicensed -- free and released into the public domain. 
+ * This code is unlicensed -- free and released into the public domain.
  * https://man7.org/linux/man-pages/man3/getline.3.html
  * Authors:
  *     https://github.com/ivanrad/getline
- * 
+ *
  * Meco Man    2020-09-03    porting to RT-Thread
  */
 
diff --git a/components/libc/getline/posix_getline.h b/components/libc/getline/posix_getline.h
index e9e0bf9c2b..13a4487d7f 100644
--- a/components/libc/getline/posix_getline.h
+++ b/components/libc/getline/posix_getline.h
@@ -1,7 +1,7 @@
 /* posix_getline.h
  * RT-Thread POSIX
  * getdelim(), getline() - read a delimited record from stream, ersatz implementation
- * This code is unlicensed -- free and released into the public domain. 
+ * This code is unlicensed -- free and released into the public domain.
  * https://man7.org/linux/man-pages/man3/getline.3.html
  * Authors:
  *     https://github.com/ivanrad/getline
diff --git a/components/libc/libdl/arch/arm.c b/components/libc/libdl/arch/arm.c
index a53c04f0bc..6a884bdb54 100644
--- a/components/libc/libdl/arch/arm.c
+++ b/components/libc/libdl/arch/arm.c
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- * 
+ *
  * Change Logs:
  * Date           Author      Notes
  * 2018/08/29     Bernard     first version
diff --git a/components/libc/libdl/arch/x86.c b/components/libc/libdl/arch/x86.c
index 16f2322fb4..e7ad714a03 100644
--- a/components/libc/libdl/arch/x86.c
+++ b/components/libc/libdl/arch/x86.c
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- * 
+ *
  * Change Logs:
  * Date           Author      Notes
  * 2018/09/15     parai     first version
@@ -13,9 +13,9 @@
 
 #ifdef __i386__
 
-#define R_X86_64_GLOB_DAT	6	/* Create GOT entry */
-#define R_X86_64_JUMP_SLOT	7	/* Create PLT entry */
-#define R_X86_64_RELATIVE	8	/* Adjust by program base */
+#define R_X86_64_GLOB_DAT   6   /* Create GOT entry */
+#define R_X86_64_JUMP_SLOT  7   /* Create PLT entry */
+#define R_X86_64_RELATIVE   8   /* Adjust by program base */
 int dlmodule_relocate(struct rt_dlmodule *module, Elf32_Rel *rel, Elf32_Addr sym_val)
 {
     Elf32_Addr *where, tmp;
diff --git a/components/libc/libdl/dlclose.c b/components/libc/libdl/dlclose.c
index 1202e13f2c..876a1576c8 100644
--- a/components/libc/libdl/dlclose.c
+++ b/components/libc/libdl/dlclose.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/libdl/dlelf.c b/components/libc/libdl/dlelf.c
index 55ef0d8951..f573122a48 100644
--- a/components/libc/libdl/dlelf.c
+++ b/components/libc/libdl/dlelf.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -172,7 +172,7 @@ rt_err_t dlmodule_load_shared_object(struct rt_dlmodule* module, void *module_pt
             rel ++;
         }
 
-        if (unsolved) 
+        if (unsolved)
             return -RT_ERROR;
     }
 
@@ -335,7 +335,7 @@ rt_err_t dlmodule_load_relocated_object(struct rt_dlmodule* module, void *module
                       (rt_uint8_t *)elf_module + shdr[index].sh_offset,
                       shdr[index].sh_size);
             rodata_addr = (rt_uint32_t)ptr;
-            LOG_D("load rodata 0x%x, size %d, rodata 0x%x", ptr, 
+            LOG_D("load rodata 0x%x, size %d, rodata 0x%x", ptr,
                 shdr[index].sh_size, *(rt_uint32_t *)data_addr);
             ptr += shdr[index].sh_size;
         }
@@ -347,7 +347,7 @@ rt_err_t dlmodule_load_relocated_object(struct rt_dlmodule* module, void *module
                       (rt_uint8_t *)elf_module + shdr[index].sh_offset,
                       shdr[index].sh_size);
             data_addr = (rt_uint32_t)ptr;
-            LOG_D("load data 0x%x, size %d, data 0x%x", ptr, 
+            LOG_D("load data 0x%x, size %d, data 0x%x", ptr,
                 shdr[index].sh_size, *(rt_uint32_t *)data_addr);
             ptr += shdr[index].sh_size;
         }
@@ -396,7 +396,7 @@ rt_err_t dlmodule_load_relocated_object(struct rt_dlmodule* module, void *module
             if (sym->st_shndx != STN_UNDEF)
             {
                 Elf32_Addr addr = 0;
-                
+
                 if ((ELF_ST_TYPE(sym->st_info) == STT_SECTION) ||
                     (ELF_ST_TYPE(sym->st_info) == STT_OBJECT))
                 {
diff --git a/components/libc/libdl/dlelf.h b/components/libc/libdl/dlelf.h
index 014ebe85c8..ad9e2cdade 100644
--- a/components/libc/libdl/dlelf.h
+++ b/components/libc/libdl/dlelf.h
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- * 
+ *
  * Change Logs:
  * Date           Author      Notes
  * 2018/08/29     Bernard     first version
diff --git a/components/libc/libdl/dlerror.c b/components/libc/libdl/dlerror.c
index ad9b630e4c..de948eb16b 100644
--- a/components/libc/libdl/dlerror.c
+++ b/components/libc/libdl/dlerror.c
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- * 
+ *
  * Change Logs:
  * Date           Author      Notes
  * 2010-11-17     yi.qiu      first version
@@ -13,6 +13,6 @@
 
 const char *dlerror(void)
 {
-	return "TODO";
+    return "TODO";
 }
 RTM_EXPORT(dlerror)
diff --git a/components/libc/libdl/dlfcn.h b/components/libc/libdl/dlfcn.h
index 55273a41eb..f5c9063f2f 100644
--- a/components/libc/libdl/dlfcn.h
+++ b/components/libc/libdl/dlfcn.h
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- * 
+ *
  * Change Logs:
  * Date           Author      Notes
  * 2010-11-17     yi.qiu      first version
diff --git a/components/libc/libdl/dlmodule.c b/components/libc/libdl/dlmodule.c
index 314cf52709..c4bbb26b37 100644
--- a/components/libc/libdl/dlmodule.c
+++ b/components/libc/libdl/dlmodule.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -547,7 +547,7 @@ struct rt_dlmodule* dlmodule_exec(const char* pgname, const char* cmd, int cmd_s
             if (module->priority > RT_THREAD_PRIORITY_MAX) module->priority = RT_THREAD_PRIORITY_MAX - 1;
             if (module->stack_size < 2048 || module->stack_size > (1024 * 32)) module->stack_size = 2048;
 
-            tid = rt_thread_create(module->parent.name, _dlmodule_thread_entry, (void*)module, 
+            tid = rt_thread_create(module->parent.name, _dlmodule_thread_entry, (void*)module,
                 module->stack_size, module->priority, 10);
             if (tid)
             {
@@ -724,7 +724,7 @@ struct rt_dlmodule* dlmodule_exec_custom(const char* pgname, const char* cmd, in
             if (module->priority > RT_THREAD_PRIORITY_MAX) module->priority = RT_THREAD_PRIORITY_MAX - 1;
             if (module->stack_size < 2048 || module->stack_size > (1024 * 32)) module->stack_size = 2048;
 
-            tid = rt_thread_create(module->parent.name, _dlmodule_thread_entry, (void*)module, 
+            tid = rt_thread_create(module->parent.name, _dlmodule_thread_entry, (void*)module,
                 module->stack_size, module->priority, 10);
             if (tid)
             {
@@ -758,7 +758,7 @@ void dlmodule_exit(int ret_code)
     rt_enter_critical();
 
     /* module is not running */
-    if (module->stat != RT_DLMODULE_STAT_RUNNING) 
+    if (module->stat != RT_DLMODULE_STAT_RUNNING)
     {
         /* restore scheduling */
         rt_exit_critical();
diff --git a/components/libc/libdl/dlmodule.h b/components/libc/libdl/dlmodule.h
index b366c7603e..183faca159 100644
--- a/components/libc/libdl/dlmodule.h
+++ b/components/libc/libdl/dlmodule.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/libdl/dlopen.c b/components/libc/libdl/dlopen.c
index a8202ec607..bcb57d78f0 100644
--- a/components/libc/libdl/dlopen.c
+++ b/components/libc/libdl/dlopen.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -43,12 +43,12 @@ void* dlopen(const char *filename, int flags)
     /* find in module list */
     module = dlmodule_find(fullpath);
 
-    if(module != RT_NULL) 
+    if(module != RT_NULL)
     {
         rt_exit_critical();
         module->nref++;
     }
-    else 
+    else
     {
         rt_exit_critical();
         module = dlmodule_load(fullpath);
diff --git a/components/libc/libdl/dlsym.c b/components/libc/libdl/dlsym.c
index ed0f183d83..f7c1c901fd 100644
--- a/components/libc/libdl/dlsym.c
+++ b/components/libc/libdl/dlsym.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -17,7 +17,7 @@ void* dlsym(void *handle, const char* symbol)
 {
     int i;
     struct rt_dlmodule *module;
-    
+
     RT_ASSERT(handle != RT_NULL);
 
     module = (struct rt_dlmodule *)handle;
diff --git a/components/libc/mmap/posix_mmap.c b/components/libc/mmap/posix_mmap.c
index a16ace8306..e68b82e640 100644
--- a/components/libc/mmap/posix_mmap.c
+++ b/components/libc/mmap/posix_mmap.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/mqueue.c b/components/libc/pthreads/mqueue.c
index 003b49b9a0..1af0ab2919 100644
--- a/components/libc/pthreads/mqueue.c
+++ b/components/libc/pthreads/mqueue.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/mqueue.h b/components/libc/pthreads/mqueue.h
index 5cadde3ae8..5152bfad29 100644
--- a/components/libc/pthreads/mqueue.h
+++ b/components/libc/pthreads/mqueue.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/posix_types.h b/components/libc/pthreads/posix_types.h
index ca20464bb5..f2d806cc9a 100644
--- a/components/libc/pthreads/posix_types.h
+++ b/components/libc/pthreads/posix_types.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
- * 2013-12-23     Bernard      Add the checking for ESHUTDOWN 
+ * 2013-12-23     Bernard      Add the checking for ESHUTDOWN
  */
 
 #ifndef __POSIX_TYPES_H__
diff --git a/components/libc/pthreads/pthread.c b/components/libc/pthreads/pthread.c
index 7430510bf2..8a728c4e99 100644
--- a/components/libc/pthreads/pthread.c
+++ b/components/libc/pthreads/pthread.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -201,7 +201,7 @@ int pthread_create(pthread_t            *pid,
 
     /* allocate posix thread data */
     pth_id = _pthread_data_create();
-    if (pth_id == PTHREAD_NUM_MAX) 
+    if (pth_id == PTHREAD_NUM_MAX)
     {
         ret = ENOMEM;
         goto __exit;
diff --git a/components/libc/pthreads/pthread.h b/components/libc/pthreads/pthread.h
index 7bb72b726c..8639c1604b 100644
--- a/components/libc/pthreads/pthread.h
+++ b/components/libc/pthreads/pthread.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -161,7 +161,7 @@ int pthread_attr_getguardsize(pthread_attr_t const *attr, size_t *guard_size);
 int pthread_attr_setscope(pthread_attr_t *attr, int scope);
 int pthread_attr_getscope(pthread_attr_t const *attr);
 int pthread_system_init(void);
-int pthread_create (pthread_t *tid, const pthread_attr_t *attr, 
+int pthread_create (pthread_t *tid, const pthread_attr_t *attr,
     void *(*start) (void *), void *arg);
 
 int pthread_detach (pthread_t thread);
diff --git a/components/libc/pthreads/pthread_attr.c b/components/libc/pthreads/pthread_attr.c
index 2294599bf3..4aedf5a90d 100644
--- a/components/libc/pthreads/pthread_attr.c
+++ b/components/libc/pthreads/pthread_attr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -16,7 +16,7 @@
 #define DEFAULT_STACK_SIZE  2048
 #define DEFAULT_PRIORITY    (RT_THREAD_PRIORITY_MAX/2 + RT_THREAD_PRIORITY_MAX/4)
 
-const pthread_attr_t pthread_default_attr = 
+const pthread_attr_t pthread_default_attr =
 {
     0,                          /* stack base */
     DEFAULT_STACK_SIZE,         /* stack size */
diff --git a/components/libc/pthreads/pthread_barrier.c b/components/libc/pthreads/pthread_barrier.c
index d76fe7f13f..1a5b7fa3f9 100644
--- a/components/libc/pthreads/pthread_barrier.c
+++ b/components/libc/pthreads/pthread_barrier.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/pthread_cond.c b/components/libc/pthreads/pthread_cond.c
index 38dc697469..59c271bf6e 100644
--- a/components/libc/pthreads/pthread_cond.c
+++ b/components/libc/pthreads/pthread_cond.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -84,10 +84,10 @@ int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
 
     rt_snprintf(cond_name, sizeof(cond_name), "cond%02d", cond_num++);
 
-	if (attr == RT_NULL) /* use default value */
-		cond->attr = PTHREAD_PROCESS_PRIVATE;
-	else 
-	    cond->attr = *attr;
+    if (attr == RT_NULL) /* use default value */
+        cond->attr = PTHREAD_PROCESS_PRIVATE;
+    else
+        cond->attr = *attr;
 
     result = rt_sem_init(&cond->sem, cond_name, 0, RT_IPC_FLAG_FIFO);
     if (result != RT_EOK)
diff --git a/components/libc/pthreads/pthread_internal.h b/components/libc/pthreads/pthread_internal.h
index 240741e21a..1fce29f636 100644
--- a/components/libc/pthreads/pthread_internal.h
+++ b/components/libc/pthreads/pthread_internal.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/pthread_mutex.c b/components/libc/pthreads/pthread_mutex.c
index 8f96531782..a681380b11 100644
--- a/components/libc/pthreads/pthread_mutex.c
+++ b/components/libc/pthreads/pthread_mutex.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -211,7 +211,7 @@ int pthread_mutex_unlock(pthread_mutex_t *mutex)
     result = rt_mutex_release(&(mutex->lock));
     if (result == RT_EOK)
         return 0;
-    
+
     return EINVAL;
 }
 RTM_EXPORT(pthread_mutex_unlock);
diff --git a/components/libc/pthreads/pthread_rwlock.c b/components/libc/pthreads/pthread_rwlock.c
index 64a0e221b4..1c2fe19f5f 100644
--- a/components/libc/pthreads/pthread_rwlock.c
+++ b/components/libc/pthreads/pthread_rwlock.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -60,7 +60,7 @@ int pthread_rwlock_init(pthread_rwlock_t           *rwlock,
     pthread_mutex_init(&(rwlock->rw_mutex), NULL);
     pthread_cond_init(&(rwlock->rw_condreaders), NULL);
     pthread_cond_init(&(rwlock->rw_condwriters), NULL);
-    
+
     rwlock->rw_nwaitwriters = 0;
     rwlock->rw_nwaitreaders = 0;
     rwlock->rw_refcount = 0;
@@ -117,7 +117,7 @@ int pthread_rwlock_destroy (pthread_rwlock_t *rwlock)
     pthread_mutex_unlock(&rwlock->rw_mutex);
     if (result == 0)
         pthread_mutex_destroy(&rwlock->rw_mutex);
-    
+
     return result;
 }
 RTM_EXPORT(pthread_rwlock_destroy);
@@ -234,7 +234,7 @@ int pthread_rwlock_timedwrlock(pthread_rwlock_t      *rwlock,
         result = pthread_cond_timedwait(&rwlock->rw_condwriters, &rwlock->rw_mutex, abstime);
         /* rw_mutex should have been taken again when returned from waiting */
         rwlock->rw_nwaitwriters--;
-        
+
         if (result != 0)
             break;
     }
@@ -324,7 +324,7 @@ int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock)
         result = pthread_cond_wait(&rwlock->rw_condwriters, &rwlock->rw_mutex);
         /* rw_mutex should have been taken again when returned from waiting */
         rwlock->rw_nwaitwriters--;
-        
+
         if (result != 0)
             break;
     }
diff --git a/components/libc/pthreads/pthread_spin.c b/components/libc/pthreads/pthread_spin.c
index b31f4f6393..3f3dc1593c 100644
--- a/components/libc/pthreads/pthread_spin.c
+++ b/components/libc/pthreads/pthread_spin.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/pthread_tls.c b/components/libc/pthreads/pthread_tls.c
index 4b97d796d9..d48df7f2dd 100644
--- a/components/libc/pthreads/pthread_tls.c
+++ b/components/libc/pthreads/pthread_tls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/sched.c b/components/libc/pthreads/sched.c
index a1bf50985e..5f2a53c01f 100644
--- a/components/libc/pthreads/sched.c
+++ b/components/libc/pthreads/sched.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/sched.h b/components/libc/pthreads/sched.h
index dbaf66edc2..07e2c0c6a8 100644
--- a/components/libc/pthreads/sched.h
+++ b/components/libc/pthreads/sched.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/semaphore.c b/components/libc/pthreads/semaphore.c
index 2ed93e99b6..398cdf1f49 100644
--- a/components/libc/pthreads/semaphore.c
+++ b/components/libc/pthreads/semaphore.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/pthreads/semaphore.h b/components/libc/pthreads/semaphore.h
index d135ae9261..872226e385 100644
--- a/components/libc/pthreads/semaphore.h
+++ b/components/libc/pthreads/semaphore.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/signal/posix_signal.c b/components/libc/signal/posix_signal.c
index c0dd90e637..b06fe12685 100644
--- a/components/libc/signal/posix_signal.c
+++ b/components/libc/signal/posix_signal.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/signal/posix_signal.h b/components/libc/signal/posix_signal.h
index 896d6b6da4..fa8ad38fa6 100644
--- a/components/libc/signal/posix_signal.h
+++ b/components/libc/signal/posix_signal.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/termios/posix_termios.c b/components/libc/termios/posix_termios.c
index 9c736c3184..01ba010c86 100644
--- a/components/libc/termios/posix_termios.c
+++ b/components/libc/termios/posix_termios.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/termios/posix_termios.h b/components/libc/termios/posix_termios.h
index c61191b7dc..5bd1999b0a 100644
--- a/components/libc/termios/posix_termios.h
+++ b/components/libc/termios/posix_termios.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/lwp/lwp.c b/components/lwp/lwp.c
index 7881fcc68f..9789595ee7 100644
--- a/components/lwp/lwp.c
+++ b/components/lwp/lwp.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/lwp/lwp.h b/components/lwp/lwp.h
index f013f36768..3607f89b17 100644
--- a/components/lwp/lwp.h
+++ b/components/lwp/lwp.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/lwp/lwp_mem.c b/components/lwp/lwp_mem.c
index 63fd5c89e1..2063fbb983 100644
--- a/components/lwp/lwp_mem.c
+++ b/components/lwp/lwp_mem.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -98,7 +98,7 @@ void rt_lwp_mem_init(struct rt_lwp *lwp)
 void rt_lwp_mem_deinit(struct rt_lwp *lwp)
 {
     struct rt_list_node *node;
-    
+
     RT_ASSERT(lwp != RT_NULL);
 
     node = lwp->hlist.next;
@@ -161,7 +161,7 @@ void rt_lwp_mem_free(void *addr)
     /* get memory item */
     header_ptr = (struct rt_lwp_memheap_item *)((rt_uint8_t *)addr - RT_MEMHEAP_SIZE);
     RT_ASSERT(header_ptr);
-    
+
     lwp_heap = header_ptr->pool_ptr;
     RT_ASSERT(lwp_heap);
 
diff --git a/components/lwp/lwp_mem.h b/components/lwp/lwp_mem.h
index 8d333cfe4f..7ef1c2293c 100644
--- a/components/lwp/lwp_mem.h
+++ b/components/lwp/lwp_mem.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/lwp/lwp_memheap.c b/components/lwp/lwp_memheap.c
index 7d512a503f..7516fa0a30 100644
--- a/components/lwp/lwp_memheap.c
+++ b/components/lwp/lwp_memheap.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/lwp/lwp_memheap.h b/components/lwp/lwp_memheap.h
index d0c09dfd01..845feb8594 100644
--- a/components/lwp/lwp_memheap.h
+++ b/components/lwp/lwp_memheap.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/lwp/lwp_syscall.c b/components/lwp/lwp_syscall.c
index be95c5fb89..02915ab1cc 100644
--- a/components/lwp/lwp_syscall.c
+++ b/components/lwp/lwp_syscall.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/lwp/lwp_syscall.h b/components/lwp/lwp_syscall.h
index a2809059f0..ba1b34a648 100644
--- a/components/lwp/lwp_syscall.h
+++ b/components/lwp/lwp_syscall.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -23,12 +23,12 @@ typedef uint32_t id_t;          /* may contain pid, uid or gid */
 /*
  * Process priority specifications to get/setpriority.
  */
-#define	PRIO_MIN	    (-20)
-#define	PRIO_MAX	    20
+#define PRIO_MIN        (-20)
+#define PRIO_MAX        20
 
-#define	PRIO_PROCESS	0       /* only support lwp process */
-#define	PRIO_PGRP	    1
-#define	PRIO_USER	    2
+#define PRIO_PROCESS    0       /* only support lwp process */
+#define PRIO_PGRP       1
+#define PRIO_USER       2
 
 #ifndef TIMEVAL_TO_TIMESPEC
 #define TIMEVAL_TO_TIMESPEC(tv, ts) {                   \
diff --git a/components/net/at/at_socket/at_socket.c b/components/net/at/at_socket/at_socket.c
index ce8559f129..6d4c040856 100644
--- a/components/net/at/at_socket/at_socket.c
+++ b/components/net/at/at_socket/at_socket.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -70,8 +70,8 @@ struct at_socket *at_get_socket(int socket)
                 return at_sock;
             }
         }
-    } 
-    
+    }
+
     rt_hw_interrupt_enable(level);
 
     return RT_NULL;
@@ -289,7 +289,7 @@ static int alloc_empty_socket(rt_slist_t *l)
     rt_slist_for_each(node, &_socket_list)
     {
         at_sock = rt_slist_entry(node, struct at_socket, list);
-        if(at_sock->socket != idx)  
+        if(at_sock->socket != idx)
             break;
         idx++;
         pre_node = node;
@@ -337,7 +337,7 @@ static struct at_socket *alloc_socket_by_device(struct at_device *device, enum a
     {
         goto __err;
     }
-    
+
     sock = &(device->sockets[idx]);
     /* the socket descriptor is the number of sockte lists */
     sock->socket = alloc_empty_socket(&(sock->list));
@@ -508,7 +508,7 @@ int at_closesocket(int socket)
 
     /* deal with TCP server actively disconnect */
     rt_thread_delay(rt_tick_from_millisecond(100));
-    
+
     sock = at_get_socket(socket);
     if (sock == RT_NULL)
     {
@@ -529,7 +529,7 @@ int at_closesocket(int socket)
         }
     }
 
-    free_socket(sock); 
+    free_socket(sock);
     return 0;
 }
 
@@ -603,7 +603,7 @@ int at_bind(int socket, const struct sockaddr *name, socklen_t namelen)
 
     /* input ip address is different from device ip address */
     if (ip_addr_cmp(&input_ipaddr, &local_ipaddr) == 0)
-    {   
+    {
         struct at_socket *new_sock = RT_NULL;
         struct at_device *new_device = RT_NULL;
         enum at_socket_type type = sock->type;
@@ -613,7 +613,7 @@ int at_bind(int socket, const struct sockaddr *name, socklen_t namelen)
         {
             return -1;
         }
-        
+
         extern struct at_device *at_device_get_by_ipaddr(ip_addr_t *ip_addr);
         new_device = at_device_get_by_ipaddr(&input_ipaddr);
         if (new_device == RT_NULL)
@@ -649,7 +649,7 @@ static void at_recv_notice_cb(struct at_socket *sock, at_socket_evt_t event, con
 {
     RT_ASSERT(buff);
     RT_ASSERT(event == AT_SOCKET_EVT_RECV);
-    
+
     /* check the socket object status */
     if (sock->magic != AT_SOCKET_MAGIC)
     {
@@ -675,7 +675,7 @@ static void at_closed_notice_cb(struct at_socket *sock, at_socket_evt_t event, c
     {
         return;
     }
-    
+
     at_do_event_changes(sock, AT_EVENT_RECV, RT_TRUE);
     at_do_event_changes(sock, AT_EVENT_ERROR, RT_TRUE);
 
@@ -731,7 +731,7 @@ __exit:
     {
         at_do_event_changes(sock, AT_EVENT_SEND, RT_TRUE);
     }
-    
+
     return result;
 }
 
@@ -780,7 +780,7 @@ int at_recvfrom(int socket, void *mem, size_t len, int flags, struct sockaddr *f
         goto __exit;
     }
     rt_mutex_release(sock->recv_lock);
-        
+
     /* socket passively closed, receive function return 0 */
     if (sock->state == AT_SOCKET_CLOSED)
     {
@@ -821,7 +821,7 @@ int at_recvfrom(int socket, void *mem, size_t len, int flags, struct sockaddr *f
             goto __exit;
         }
         else
-        {         
+        {
 
             /* get receive buffer to receiver ring buffer */
             rt_mutex_take(sock->recv_lock, RT_WAITING_FOREVER);
@@ -945,7 +945,7 @@ __exit:
     {
         if (sock != RT_NULL)
         {
-            at_do_event_changes(sock, AT_EVENT_ERROR, RT_TRUE);   
+            at_do_event_changes(sock, AT_EVENT_ERROR, RT_TRUE);
         }
     }
     else
@@ -1138,13 +1138,13 @@ struct hostent *at_gethostbyname(const char *name)
 
 #if NETDEV_IPV4 && NETDEV_IPV6
     addr.u_addr.ip4.addr = ipstr_to_u32(ipstr);
-	addr.type = IPADDR_TYPE_V4;
+    addr.type = IPADDR_TYPE_V4;
 #elif NETDEV_IPV4
     addr.addr = ipstr_to_u32(ipstr);
 #elif NETDEV_IPV6
 #error "not support IPV6."
 #endif /* NETDEV_IPV4 && NETDEV_IPV6 */
- 
+
     /* fill hostent structure */
     s_hostent_addr = addr;
     s_phostent_addr[0] = &s_hostent_addr;
@@ -1243,8 +1243,8 @@ int at_getaddrinfo(const char *nodename, const char *servname,
             {
                 strncpy(ip_str, nodename, strlen(nodename));
             }
-            
-        #if NETDEV_IPV4 && NETDEV_IPV6 
+
+        #if NETDEV_IPV4 && NETDEV_IPV6
             addr.type = IPADDR_TYPE_V4;
             if ((addr.u_addr.ip4.addr = ipstr_to_u32(ip_str)) == 0)
             {
@@ -1254,7 +1254,7 @@ int at_getaddrinfo(const char *nodename, const char *servname,
             addr.addr = ipstr_to_u32(ip_str);
         #elif NETDEV_IPV6
         #error "not support IPV6."
-        #endif /* NETDEV_IPV4 && NETDEV_IPV6 */  
+        #endif /* NETDEV_IPV4 && NETDEV_IPV6 */
         }
     }
     else
diff --git a/components/net/at/at_socket/at_socket.h b/components/net/at/at_socket/at_socket.h
index 3317579f05..caac6d2d5d 100644
--- a/components/net/at/at_socket/at_socket.h
+++ b/components/net/at/at_socket/at_socket.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/at/include/at.h b/components/net/at/include/at.h
index 7be821c21d..c6d0e3a5ce 100644
--- a/components/net/at/include/at.h
+++ b/components/net/at/include/at.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/at/include/at_log.h b/components/net/at/include/at_log.h
index 9e133561f7..acb5b34ecc 100644
--- a/components/net/at/include/at_log.h
+++ b/components/net/at/include/at_log.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/at/src/at_base_cmd.c b/components/net/at/src/at_base_cmd.c
index b182477f9b..00720c87b2 100644
--- a/components/net/at/src/at_base_cmd.c
+++ b/components/net/at/src/at_base_cmd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/at/src/at_cli.c b/components/net/at/src/at_cli.c
index e39a913357..25fbb708f4 100644
--- a/components/net/at/src/at_cli.c
+++ b/components/net/at/src/at_cli.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -27,7 +27,7 @@ static rt_err_t (*odev_rx_ind)(rt_device_t dev, rt_size_t size) = RT_NULL;
 #ifdef AT_USING_CLIENT
 static struct rt_semaphore client_rx_notice;
 static struct rt_ringbuffer *client_rx_fifo = RT_NULL;
-#endif 
+#endif
 
 static char console_getchar(void)
 {
diff --git a/components/net/at/src/at_client.c b/components/net/at/src/at_client.c
index f46abd5cd4..5e077512ae 100644
--- a/components/net/at/src/at_client.c
+++ b/components/net/at/src/at_client.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -577,7 +577,7 @@ int at_obj_set_urc_table(at_client_t client, const struct at_urc *urc_table, rt_
         client->urc_table[client->urc_table_size].urc = urc_table;
         client->urc_table[client->urc_table_size].urc_size = table_sz;
         client->urc_table_size++;
-        
+
         rt_free(old_urc_table);
     }
 
diff --git a/components/net/at/src/at_server.c b/components/net/at/src/at_server.c
index 81d00951f5..bfbbbae2d3 100644
--- a/components/net/at/src/at_server.c
+++ b/components/net/at/src/at_server.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/at/src/at_utils.c b/components/net/at/src/at_utils.c
index 7d26425f56..8d8887fe5e 100644
--- a/components/net/at/src/at_utils.c
+++ b/components/net/at/src/at_utils.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/lwip-1.4.1/src/arch/include/arch/cc.h b/components/net/lwip-1.4.1/src/arch/include/arch/cc.h
index ecf22177ac..8dd59e8dee 100644
--- a/components/net/lwip-1.4.1/src/arch/include/arch/cc.h
+++ b/components/net/lwip-1.4.1/src/arch/include/arch/cc.h
@@ -60,17 +60,17 @@ typedef uintptr_t mem_ptr_t;
 /* some errno not defined in newlib */
 #define ENSRNOTFOUND 163  /* Domain name not found */
 /* WARNING: ESHUTDOWN also not defined in newlib. We chose
-			180 here because the number "108" which is used
-			in arch.h has been assigned to another error code. */
+            180 here because the number "108" which is used
+            in arch.h has been assigned to another error code. */
 #define ESHUTDOWN 180
 #endif /* __CC_ARM/__IAR_SYSTEMS_ICC__ */
 #endif
 
 #if defined(RT_USING_LIBC) || defined(RT_LIBC_USING_TIME) || (defined( __GNUC__ ) && !defined(__ARMCC_VERSION))
 #include <sys/time.h>
-#define LWIP_TIMEVAL_PRIVATE	   0
+#define LWIP_TIMEVAL_PRIVATE       0
 #else
-#define LWIP_TIMEVAL_PRIVATE	   1
+#define LWIP_TIMEVAL_PRIVATE       1
 #endif
 
 #if defined(__CC_ARM)   /* ARMCC compiler */
@@ -102,14 +102,14 @@ typedef uintptr_t mem_ptr_t;
 #endif
 
 void sys_arch_assert(const char* file, int line);
-#define LWIP_PLATFORM_DIAG(x)	do {rt_kprintf x;} while(0)
+#define LWIP_PLATFORM_DIAG(x)   do {rt_kprintf x;} while(0)
 #define LWIP_PLATFORM_ASSERT(x) do {rt_kprintf(x); sys_arch_assert(__FILE__, __LINE__);}while(0)
 
 #include "string.h"
 
-#define SYS_ARCH_DECL_PROTECT(level)	
-#define SYS_ARCH_PROTECT(level)		rt_enter_critical()
-#define SYS_ARCH_UNPROTECT(level) 	rt_exit_critical()
+#define SYS_ARCH_DECL_PROTECT(level)
+#define SYS_ARCH_PROTECT(level)     rt_enter_critical()
+#define SYS_ARCH_UNPROTECT(level)   rt_exit_critical()
 
 #endif /* __ARCH_CC_H__ */
 
diff --git a/components/net/lwip-1.4.1/src/arch/sys_arch.c b/components/net/lwip-1.4.1/src/arch/sys_arch.c
index 2f6dbb4143..0bdce1e075 100644
--- a/components/net/lwip-1.4.1/src/arch/sys_arch.c
+++ b/components/net/lwip-1.4.1/src/arch/sys_arch.c
@@ -1,5 +1,5 @@
 /*
- * COPYRIGHT (C) 2006-2018, RT-Thread Development Team
+ * COPYRIGHT (C) 2006-2021, RT-Thread Development Team
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
@@ -195,9 +195,9 @@ int lwip_system_init(void)
         netifapi_netif_set_addr(netif_default, &ipaddr, &netmask, &gw);
     }
 #endif
-	rt_kprintf("lwIP-%d.%d.%d initialized!\n", LWIP_VERSION_MAJOR, LWIP_VERSION_MINOR, LWIP_VERSION_REVISION);
+    rt_kprintf("lwIP-%d.%d.%d initialized!\n", LWIP_VERSION_MAJOR, LWIP_VERSION_MINOR, LWIP_VERSION_REVISION);
 
-	return 0;
+    return 0;
 }
 INIT_PREV_EXPORT(lwip_system_init);
 
diff --git a/components/net/lwip-2.0.2/src/arch/include/arch/cc.h b/components/net/lwip-2.0.2/src/arch/include/arch/cc.h
index 51b06f1a7f..e3014f552c 100644
--- a/components/net/lwip-2.0.2/src/arch/include/arch/cc.h
+++ b/components/net/lwip-2.0.2/src/arch/include/arch/cc.h
@@ -47,9 +47,9 @@
 
 #if defined(RT_USING_LIBC) || defined(RT_LIBC_USING_TIME) || (defined( __GNUC__ ) && !defined(__ARMCC_VERSION))
 #include <sys/time.h>
-#define LWIP_TIMEVAL_PRIVATE	   0
+#define LWIP_TIMEVAL_PRIVATE       0
 #else
-#define LWIP_TIMEVAL_PRIVATE	   1
+#define LWIP_TIMEVAL_PRIVATE       1
 #endif
 
 #if defined(__CC_ARM)   /* ARMCC compiler */
@@ -81,14 +81,14 @@
 #endif
 
 void sys_arch_assert(const char* file, int line);
-#define LWIP_PLATFORM_DIAG(x)	do {rt_kprintf x;} while(0)
+#define LWIP_PLATFORM_DIAG(x)   do {rt_kprintf x;} while(0)
 #define LWIP_PLATFORM_ASSERT(x) do {rt_kprintf(x); sys_arch_assert(__FILE__, __LINE__);}while(0)
 
 #include "string.h"
 
-#define SYS_ARCH_DECL_PROTECT(level)	
-#define SYS_ARCH_PROTECT(level)		rt_enter_critical()
-#define SYS_ARCH_UNPROTECT(level) 	rt_exit_critical()
+#define SYS_ARCH_DECL_PROTECT(level)
+#define SYS_ARCH_PROTECT(level)     rt_enter_critical()
+#define SYS_ARCH_UNPROTECT(level)   rt_exit_critical()
 
 #endif /* __ARCH_CC_H__ */
 
diff --git a/components/net/lwip-2.0.2/src/arch/sys_arch.c b/components/net/lwip-2.0.2/src/arch/sys_arch.c
index fbf02cad0a..4d0c57eff9 100644
--- a/components/net/lwip-2.0.2/src/arch/sys_arch.c
+++ b/components/net/lwip-2.0.2/src/arch/sys_arch.c
@@ -1,5 +1,5 @@
 /*
- * COPYRIGHT (C) 2006-2018, RT-Thread Development Team
+ * COPYRIGHT (C) 2006-2021, RT-Thread Development Team
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
diff --git a/components/net/lwip-2.1.2/src/arch/include/arch/cc.h b/components/net/lwip-2.1.2/src/arch/include/arch/cc.h
index 2c22d3a873..320beb53e0 100644
--- a/components/net/lwip-2.1.2/src/arch/include/arch/cc.h
+++ b/components/net/lwip-2.1.2/src/arch/include/arch/cc.h
@@ -53,17 +53,17 @@
 /* some errno not defined in newlib */
 #define ENSRNOTFOUND 163  /* Domain name not found */
 /* WARNING: ESHUTDOWN also not defined in newlib. We chose
-			180 here because the number "108" which is used
-			in arch.h has been assigned to another error code. */
+            180 here because the number "108" which is used
+            in arch.h has been assigned to another error code. */
 #define ESHUTDOWN 180
 #endif /* __CC_ARM/__IAR_SYSTEMS_ICC__ */
 #endif /* RT_USING_LIBC */
 
 #if defined(RT_USING_LIBC) || defined(RT_LIBC_USING_TIME) || (defined( __GNUC__ ) && !defined(__ARMCC_VERSION))
 #include <sys/time.h>
-#define LWIP_TIMEVAL_PRIVATE	   0
+#define LWIP_TIMEVAL_PRIVATE       0
 #else
-#define LWIP_TIMEVAL_PRIVATE	   1
+#define LWIP_TIMEVAL_PRIVATE       1
 #endif
 
 #if defined(__CC_ARM)   /* ARMCC compiler */
@@ -95,14 +95,14 @@
 #endif
 
 void sys_arch_assert(const char* file, int line);
-#define LWIP_PLATFORM_DIAG(x)	do {rt_kprintf x;} while(0)
+#define LWIP_PLATFORM_DIAG(x)   do {rt_kprintf x;} while(0)
 #define LWIP_PLATFORM_ASSERT(x) do {rt_kprintf(x); sys_arch_assert(__FILE__, __LINE__);}while(0)
 
 #include "string.h"
 
-#define SYS_ARCH_DECL_PROTECT(level)	
-#define SYS_ARCH_PROTECT(level)		rt_enter_critical()
-#define SYS_ARCH_UNPROTECT(level) 	rt_exit_critical()
+#define SYS_ARCH_DECL_PROTECT(level)
+#define SYS_ARCH_PROTECT(level)     rt_enter_critical()
+#define SYS_ARCH_UNPROTECT(level)   rt_exit_critical()
 
 #endif /* __ARCH_CC_H__ */
 
diff --git a/components/net/lwip-2.1.2/src/arch/sys_arch.c b/components/net/lwip-2.1.2/src/arch/sys_arch.c
index a0eeed1073..c97609a4ea 100644
--- a/components/net/lwip-2.1.2/src/arch/sys_arch.c
+++ b/components/net/lwip-2.1.2/src/arch/sys_arch.c
@@ -1,5 +1,5 @@
 /*
- * COPYRIGHT (C) 2006-2018, RT-Thread Development Team
+ * COPYRIGHT (C) 2006-2021, RT-Thread Development Team
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
diff --git a/components/net/lwip_dhcpd/dhcp_server_raw.c b/components/net/lwip_dhcpd/dhcp_server_raw.c
index 6c786301be..92fd11671c 100644
--- a/components/net/lwip_dhcpd/dhcp_server_raw.c
+++ b/components/net/lwip_dhcpd/dhcp_server_raw.c
@@ -26,7 +26,7 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
- * 
+ *
  * Change Logs:
  * Date           Author       Notes
  * 2014-04-01     Ren.Haibo    the first version
diff --git a/components/net/netdev/include/arpa/inet.h b/components/net/netdev/include/arpa/inet.h
index 085e15dcbc..9072dffb79 100644
--- a/components/net/netdev/include/arpa/inet.h
+++ b/components/net/netdev/include/arpa/inet.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/netdev/include/netdev.h b/components/net/netdev/include/netdev.h
index e11a8929b0..16da0e502c 100644
--- a/components/net/netdev/include/netdev.h
+++ b/components/net/netdev/include/netdev.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -79,8 +79,8 @@ struct netdev_ops;
 /* network interface device object */
 struct netdev
 {
-    rt_slist_t list; 
-    
+    rt_slist_t list;
+
     char name[RT_NAME_MAX];                            /* network interface device name */
     ip_addr_t ip_addr;                                 /* IP address */
     ip_addr_t netmask;                                 /* subnet mask */
@@ -91,11 +91,11 @@ struct netdev
     ip_addr_t dns_servers[NETDEV_DNS_SERVERS_NUM];     /* DNS server */
     uint8_t hwaddr_len;                                /* hardware address length */
     uint8_t hwaddr[NETDEV_HWADDR_MAX_LEN];             /* hardware address */
-    
+
     uint16_t flags;                                    /* network interface device status flag */
     uint16_t mtu;                                      /* maximum transfer unit (in bytes) */
     const struct netdev_ops *ops;                      /* network interface device operations */
-    
+
     netdev_callback_fn status_callback;                /* network interface device flags change callback */
     netdev_callback_fn addr_callback;                  /* network interface device address information change callback */
 
diff --git a/components/net/netdev/include/netdev_ipaddr.h b/components/net/netdev/include/netdev_ipaddr.h
index 65970ec5b7..08ea50ed9d 100644
--- a/components/net/netdev/include/netdev_ipaddr.h
+++ b/components/net/netdev/include/netdev_ipaddr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -23,30 +23,30 @@ extern "C" {
  * On subnets, the decomposition of addresses to host and net parts
  * is done according to subnet mask, not the masks here.
  */
-#define	IN_CLASSA(i)		(((long)(i) & 0x80000000) == 0)
-#define	IN_CLASSA_NET		0xff000000
-#define	IN_CLASSA_NSHIFT	24
-#define	IN_CLASSA_HOST		0x00ffffff
-#define	IN_CLASSA_MAX		128
+#define IN_CLASSA(i)        (((long)(i) & 0x80000000) == 0)
+#define IN_CLASSA_NET       0xff000000
+#define IN_CLASSA_NSHIFT    24
+#define IN_CLASSA_HOST      0x00ffffff
+#define IN_CLASSA_MAX       128
 
-#define	IN_CLASSB(i)		(((long)(i) & 0xc0000000) == 0x80000000)
-#define	IN_CLASSB_NET		0xffff0000
-#define	IN_CLASSB_NSHIFT	16
-#define	IN_CLASSB_HOST		0x0000ffff
-#define	IN_CLASSB_MAX		65536
+#define IN_CLASSB(i)        (((long)(i) & 0xc0000000) == 0x80000000)
+#define IN_CLASSB_NET       0xffff0000
+#define IN_CLASSB_NSHIFT    16
+#define IN_CLASSB_HOST      0x0000ffff
+#define IN_CLASSB_MAX       65536
 
-#define	IN_CLASSC(i)		(((long)(i) & 0xe0000000) == 0xc0000000)
-#define	IN_CLASSC_NET		0xffffff00
-#define	IN_CLASSC_NSHIFT	8
-#define	IN_CLASSC_HOST		0x000000ff
+#define IN_CLASSC(i)        (((long)(i) & 0xe0000000) == 0xc0000000)
+#define IN_CLASSC_NET       0xffffff00
+#define IN_CLASSC_NSHIFT    8
+#define IN_CLASSC_HOST      0x000000ff
 
-#define	IN_CLASSD(i)		(((long)(i) & 0xf0000000) == 0xe0000000)
-#define	IN_MULTICAST(i)		IN_CLASSD(i)
+#define IN_CLASSD(i)        (((long)(i) & 0xf0000000) == 0xe0000000)
+#define IN_MULTICAST(i)     IN_CLASSD(i)
 
-#define	IN_EXPERIMENTAL(i)	(((long)(i) & 0xe0000000) == 0xe0000000)
-#define	IN_BADCLASS(i)		(((long)(i) & 0xf0000000) == 0xf0000000)
+#define IN_EXPERIMENTAL(i)  (((long)(i) & 0xe0000000) == 0xe0000000)
+#define IN_BADCLASS(i)      (((long)(i) & 0xf0000000) == 0xf0000000)
 
-#define	IN_LOOPBACKNET		127			/* official! */
+#define IN_LOOPBACKNET      127         /* official! */
 
 /* IP address types for use in ip_addr_t.type member */
 enum netdev_ip_addr_type {
@@ -307,7 +307,7 @@ const char *netdev_inet_ntop(int af, const void *src, char *dst, int32_t size);
 int netdev_inet_pton(int af, const char *src, void *dst);
 
 #define inet_ntop(af, src, dst, size)       netdev_inet_ntop(af, src, dst, size)
-#define inet_pton(af, src, dst)             netdev_inet_pton(af, src, dst) 
+#define inet_pton(af, src, dst)             netdev_inet_pton(af, src, dst)
 
 #ifdef __cplusplus
 }
diff --git a/components/net/netdev/src/netdev.c b/components/net/netdev/src/netdev.c
index cef11847f9..3f7aa401c1 100644
--- a/components/net/netdev/src/netdev.c
+++ b/components/net/netdev/src/netdev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/netdev/src/netdev_ipaddr.c b/components/net/netdev/src/netdev_ipaddr.c
index a70a90bb75..9abb41bd14 100644
--- a/components/net/netdev/src/netdev_ipaddr.c
+++ b/components/net/netdev/src/netdev_ipaddr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/dfs_net/dfs_net.c b/components/net/sal_socket/dfs_net/dfs_net.c
index f1a3d777a1..67b652c320 100644
--- a/components/net/sal_socket/dfs_net/dfs_net.c
+++ b/components/net/sal_socket/dfs_net/dfs_net.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -21,7 +21,7 @@
 int dfs_net_getsocket(int fd)
 {
     int socket;
-    struct dfs_fd *_dfs_fd; 
+    struct dfs_fd *_dfs_fd;
 
     _dfs_fd = fd_get(fd);
     if (_dfs_fd == NULL) return -1;
@@ -68,7 +68,7 @@ static int dfs_net_poll(struct dfs_fd *file, struct rt_pollreq *req)
     return sal_poll(file, req);
 }
 
-const struct dfs_file_ops _net_fops = 
+const struct dfs_file_ops _net_fops =
 {
     NULL,    /* open     */
     dfs_net_close,
diff --git a/components/net/sal_socket/impl/af_inet.h b/components/net/sal_socket/impl/af_inet.h
index caffbe1400..421d15bfae 100644
--- a/components/net/sal_socket/impl/af_inet.h
+++ b/components/net/sal_socket/impl/af_inet.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/impl/af_inet_at.c b/components/net/sal_socket/impl/af_inet_at.c
index 135e4183c4..c85dfe9f06 100644
--- a/components/net/sal_socket/impl/af_inet_at.c
+++ b/components/net/sal_socket/impl/af_inet_at.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -85,7 +85,7 @@ static const struct sal_socket_ops at_socket_ops =
 #endif /* SAL_USING_POSIX */
 };
 
-static const struct sal_netdb_ops at_netdb_ops = 
+static const struct sal_netdb_ops at_netdb_ops =
 {
     at_gethostbyname,
     NULL,
diff --git a/components/net/sal_socket/impl/af_inet_lwip.c b/components/net/sal_socket/impl/af_inet_lwip.c
index 56df735ab9..2e19275b5d 100644
--- a/components/net/sal_socket/impl/af_inet_lwip.c
+++ b/components/net/sal_socket/impl/af_inet_lwip.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -229,7 +229,7 @@ int inet_ioctlsocket(int socket, long cmd, void *arg)
     {
     case F_GETFL:
     case F_SETFL:
-        return lwip_fcntl(socket, cmd, (int) arg); 
+        return lwip_fcntl(socket, cmd, (int) arg);
 
     default:
         return lwip_ioctl(socket, cmd, arg);
@@ -320,7 +320,7 @@ static const struct sal_proto_family lwip_inet_family =
     AF_INET6,
 #else
     AF_INET,
-#endif 
+#endif
     &lwip_socket_ops,
     &lwip_netdb_ops,
 };
@@ -329,7 +329,7 @@ static const struct sal_proto_family lwip_inet_family =
 int sal_lwip_netdev_set_pf_info(struct netdev *netdev)
 {
     RT_ASSERT(netdev);
-    
+
     netdev->sal_user_data = (void *) &lwip_inet_family;
     return 0;
 }
diff --git a/components/net/sal_socket/impl/proto_mbedtls.c b/components/net/sal_socket/impl/proto_mbedtls.c
index 3472bbeaf5..79fbdcc5d4 100644
--- a/components/net/sal_socket/impl/proto_mbedtls.c
+++ b/components/net/sal_socket/impl/proto_mbedtls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -59,7 +59,7 @@ static void *mebdtls_socket(int socket)
     {
         tls_free(session);
         session = RT_NULL;
-        
+
         return RT_NULL;
     }
 
@@ -68,7 +68,7 @@ static void *mebdtls_socket(int socket)
     {
         mbedtls_client_close(session);
         return RT_NULL;
-    }  
+    }
     session->server_fd.fd = socket;
 
     return (void *)session;
@@ -89,7 +89,7 @@ int mbedtls_net_send_cb(void *ctx, const unsigned char *buf, size_t len)
     {
         return -1;
     }
-    
+
     pf = (struct sal_proto_family *)sock->netdev->sal_user_data;
 
     /* Register scoket sendto option to TLS send data callback */
@@ -128,7 +128,7 @@ int mbedtls_net_recv_cb( void *ctx, unsigned char *buf, size_t len)
     }
 
     pf = (struct sal_proto_family *)sock->netdev->sal_user_data;
-    
+
     /* Register scoket recvfrom option to TLS recv data callback */
     ret = pf->skt_ops->recvfrom((int) sock->user_data, (void *)buf, len, 0, RT_NULL, RT_NULL);
     if (ret < 0)
@@ -183,7 +183,7 @@ static int mbedtls_connect(void *sock)
         mbedtls_x509_crt_verify_info((char *)session->buffer, session->buffer_len, "  ! ", ret);
         goto __exit;
     }
-    
+
     return ret;
 
 __exit:
@@ -199,27 +199,27 @@ static int mbedtls_closesocket(void *sock)
 {
     struct sal_socket *ssock;
     int socket;
-    
+
     if (sock == RT_NULL)
     {
         return 0;
     }
-    
+
     socket = ((MbedTLSSession *) sock)->server_fd.fd;
     ssock = sal_get_socket(socket);
     if (ssock == RT_NULL)
     {
         return -1;
     }
-    
+
     /* Close TLS client session, and clean user-data in SAL socket */
     mbedtls_client_close((MbedTLSSession *) sock);
     ssock->user_data_tls = RT_NULL;
-    
+
     return 0;
 }
 
-static const struct sal_proto_tls_ops mbedtls_proto_ops= 
+static const struct sal_proto_tls_ops mbedtls_proto_ops=
 {
     RT_NULL,
     mebdtls_socket,
diff --git a/components/net/sal_socket/include/dfs_net/dfs_net.h b/components/net/sal_socket/include/dfs_net/dfs_net.h
index ad28b8ec2a..82b7526603 100644
--- a/components/net/sal_socket/include/dfs_net/dfs_net.h
+++ b/components/net/sal_socket/include/dfs_net/dfs_net.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/dfs_net/sys_select/sys/select.h b/components/net/sal_socket/include/dfs_net/sys_select/sys/select.h
index 8899daee96..f174bc6504 100644
--- a/components/net/sal_socket/include/dfs_net/sys_select/sys/select.h
+++ b/components/net/sal_socket/include/dfs_net/sys_select/sys/select.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/sal.h b/components/net/sal_socket/include/sal.h
index 6ffaa90356..dd250e37b6 100644
--- a/components/net/sal_socket/include/sal.h
+++ b/components/net/sal_socket/include/sal.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/sal_netdb.h b/components/net/sal_socket/include/sal_netdb.h
index d5ce9b1d7e..50064ce343 100644
--- a/components/net/sal_socket/include/sal_netdb.h
+++ b/components/net/sal_socket/include/sal_netdb.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/sal_socket.h b/components/net/sal_socket/include/sal_socket.h
index b620bbe23c..497be47e41 100644
--- a/components/net/sal_socket/include/sal_socket.h
+++ b/components/net/sal_socket/include/sal_socket.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -171,7 +171,7 @@ struct sockaddr_in
 #endif /* NETDEV_IPV4 */
 
 #if NETDEV_IPV6
-struct sockaddr_in6 
+struct sockaddr_in6
 {
   uint8_t         sin6_len;      /* length of this structure    */
   sa_family_t     sin6_family;   /* AF_INET6                    */
diff --git a/components/net/sal_socket/include/sal_tls.h b/components/net/sal_socket/include/sal_tls.h
index 7681b313bd..f211a3c1f8 100644
--- a/components/net/sal_socket/include/sal_tls.h
+++ b/components/net/sal_socket/include/sal_tls.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/socket/netdb.h b/components/net/sal_socket/include/socket/netdb.h
index 17f83efe00..4783405022 100644
--- a/components/net/sal_socket/include/socket/netdb.h
+++ b/components/net/sal_socket/include/socket/netdb.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/socket/netinet/in.h b/components/net/sal_socket/include/socket/netinet/in.h
index 57c417d7b6..37240547b4 100644
--- a/components/net/sal_socket/include/socket/netinet/in.h
+++ b/components/net/sal_socket/include/socket/netinet/in.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/socket/netinet/tcp.h b/components/net/sal_socket/include/socket/netinet/tcp.h
index 2ac4d6f40d..a3b530186a 100644
--- a/components/net/sal_socket/include/socket/netinet/tcp.h
+++ b/components/net/sal_socket/include/socket/netinet/tcp.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/socket/netinet/udp.h b/components/net/sal_socket/include/socket/netinet/udp.h
index 485d7d142c..21f50d55e5 100644
--- a/components/net/sal_socket/include/socket/netinet/udp.h
+++ b/components/net/sal_socket/include/socket/netinet/udp.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/include/socket/sys_socket/sys/socket.h b/components/net/sal_socket/include/socket/sys_socket/sys/socket.h
index 04470aa84a..a86240e2ff 100644
--- a/components/net/sal_socket/include/socket/sys_socket/sys/socket.h
+++ b/components/net/sal_socket/include/socket/sys_socket/sys/socket.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/socket/net_netdb.c b/components/net/sal_socket/socket/net_netdb.c
index bc76a48965..03b995c68d 100644
--- a/components/net/sal_socket/socket/net_netdb.c
+++ b/components/net/sal_socket/socket/net_netdb.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/socket/net_sockets.c b/components/net/sal_socket/socket/net_sockets.c
index a53b2f1f9c..3637635d50 100644
--- a/components/net/sal_socket/socket/net_sockets.c
+++ b/components/net/sal_socket/socket/net_sockets.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -95,7 +95,7 @@ int shutdown(int s, int how)
         rt_set_errno(-EBADF);
         return -1;
     }
-    
+
     if (sal_shutdown(socket, how) == 0)
     {
         error = 0;
@@ -105,7 +105,7 @@ int shutdown(int s, int how)
         rt_set_errno(-ENOTSOCK);
         error = -1;
     }
-    
+
     fd_put(d);
 
     return error;
diff --git a/components/net/sal_socket/src/sal_socket.c b/components/net/sal_socket/src/sal_socket.c
index 27dea260fb..e7142fae94 100644
--- a/components/net/sal_socket/src/sal_socket.c
+++ b/components/net/sal_socket/src/sal_socket.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/utilities/ulog/backend/console_be.c b/components/utilities/ulog/backend/console_be.c
index 95dd547426..b84cd95d09 100644
--- a/components/utilities/ulog/backend/console_be.c
+++ b/components/utilities/ulog/backend/console_be.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/utilities/ulog/syslog/syslog.c b/components/utilities/ulog/syslog/syslog.c
index 4c290bed52..a081db6eb6 100644
--- a/components/utilities/ulog/syslog/syslog.c
+++ b/components/utilities/ulog/syslog/syslog.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/utilities/ulog/syslog/syslog.h b/components/utilities/ulog/syslog/syslog.h
index 43eec7125f..8e4d5ba15f 100644
--- a/components/utilities/ulog/syslog/syslog.h
+++ b/components/utilities/ulog/syslog/syslog.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/utilities/ulog/ulog.c b/components/utilities/ulog/ulog.c
index b4571f4920..e903a707b2 100644
--- a/components/utilities/ulog/ulog.c
+++ b/components/utilities/ulog/ulog.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/utilities/ulog/ulog.h b/components/utilities/ulog/ulog.h
index 670644bb30..3754828e56 100644
--- a/components/utilities/ulog/ulog.h
+++ b/components/utilities/ulog/ulog.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/utilities/ulog/ulog_def.h b/components/utilities/ulog/ulog_def.h
index 771e76a601..d51c6f0d84 100644
--- a/components/utilities/ulog/ulog_def.h
+++ b/components/utilities/ulog/ulog_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -102,8 +102,8 @@ extern "C" {
     #define ulog_hex(TAG, width, buf, size)     ulog_hexdump(TAG, width, buf, size)
 #else
     #define ulog_hex(TAG, width, buf, size)
-#endif /* (LOG_LVL >= LOG_LVL_DBG) && (ULOG_OUTPUT_LVL >= LOG_LVL_DBG) */    
-    
+#endif /* (LOG_LVL >= LOG_LVL_DBG) && (ULOG_OUTPUT_LVL >= LOG_LVL_DBG) */
+
 /* assert for developer. */
 #ifdef ULOG_ASSERT_ENABLE
     #define ULOG_ASSERT(EXPR)                                                 \
@@ -142,7 +142,7 @@ extern "C" {
 #define log_d                          LOG_D
 #define log_v                          LOG_D
 #define log_raw                        LOG_RAW
-#define log_hex                        LOG_HEX    
+#define log_hex                        LOG_HEX
 #define ELOG_LVL_ASSERT                LOG_LVL_ASSERT
 #define ELOG_LVL_ERROR                 LOG_LVL_ERROR
 #define ELOG_LVL_WARN                  LOG_LVL_WARNING
diff --git a/components/utilities/utest/utest.c b/components/utilities/utest/utest.c
index 6500ae2fbe..325823de8a 100644
--- a/components/utilities/utest/utest.c
+++ b/components/utilities/utest/utest.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/utilities/utest/utest.h b/components/utilities/utest/utest.h
index e2d72a931d..33d50efddb 100644
--- a/components/utilities/utest/utest.h
+++ b/components/utilities/utest/utest.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -22,13 +22,13 @@ extern "C" {
 
 /**
  * utest_error
- * 
+ *
  * @brief Test result.
- * 
+ *
  * @member UTEST_PASSED Test success.
  * @member UTEST_FAILED Test failed.
  * @member UTEST_PASSED Test skipped.
- * 
+ *
 */
 enum utest_error
 {
@@ -40,13 +40,13 @@ typedef enum utest_error utest_err_e;
 
 /**
  * utest
- * 
+ *
  * @brief utest data structure.
- * 
+ *
  * @member error      Error number from enum `utest_error`.
  * @member passed_num Total number of tests passed.
  * @member failed_num Total number of tests failed.
- * 
+ *
 */
 struct utest
 {
@@ -58,16 +58,16 @@ typedef struct utest *utest_t;
 
 /**
  * utest_tc_export
- * 
+ *
  * @brief utest testcase data structure.
  *        Will export the data to `UtestTcTab` section in flash.
- * 
+ *
  * @member name        Testcase name.
  * @member run_timeout Testcase maximum test time (Time unit: seconds).
  * @member init        Necessary initialization before executing the test case function.
  * @member tc          Total number of tests failed.
  * @member cleanup     Total number of tests failed.
- * 
+ *
 */
 struct utest_tc_export {
     const char  *name;
@@ -80,61 +80,61 @@ typedef struct utest_tc_export *utest_tc_export_t;
 
 /**
  * test_unit_func
- * 
+ *
  * @brief Unit test handler function pointer.
- * 
+ *
 */
 typedef void (*test_unit_func)(void);
 
 /**
  * utest_unit_run
- * 
+ *
  * @brief Unit test function executor.
  *        No need for the user to call this function directly
- * 
+ *
  * @param func           Unit test function.
  * @param unit_func_name Unit test function name.
- * 
+ *
  * @return void
- * 
+ *
 */
 void utest_unit_run(test_unit_func func, const char *unit_func_name);
 
 /**
  * utest_handle_get
- * 
+ *
  * @brief Get the utest data structure handle.
  *        No need for the user to call this function directly
- * 
+ *
  * @param void
- * 
+ *
  * @return utest_t type. (struct utest *)
- * 
+ *
 */
 utest_t utest_handle_get(void);
 
 /**
  * UTEST_NAME_MAX_LEN
- * 
+ *
  * @brief Testcase name maximum length.
- * 
+ *
 */
 #define UTEST_NAME_MAX_LEN (128u)
 
 /**
  * UTEST_TC_EXPORT
- * 
+ *
  * @brief Export testcase function to `UtestTcTab` section in flash.
  *        Used in application layer.
- * 
+ *
  * @param testcase The testcase function.
  * @param name     The testcase name.
  * @param init     The initialization function of the test case.
  * @param cleanup  The cleanup function of the test case.
  * @param timeout  Testcase maximum test time (Time unit: seconds).
- * 
+ *
  * @return None
- * 
+ *
 */
 #define UTEST_TC_EXPORT(testcase, name, init, cleanup, timeout)                \
     RT_USED static const struct utest_tc_export _utest_testcase                \
@@ -149,14 +149,14 @@ utest_t utest_handle_get(void);
 
 /**
  * UTEST_UNIT_RUN
- * 
+ *
  * @brief Unit test function executor.
  *        Used in `testcase` function in application.
- * 
+ *
  * @param test_unit_func Unit test function
- * 
+ *
  * @return None
- * 
+ *
 */
 #define UTEST_UNIT_RUN(test_unit_func)                                         \
     utest_unit_run(test_unit_func, #test_unit_func);                           \
diff --git a/components/utilities/utest/utest_assert.h b/components/utilities/utest/utest_assert.h
index d83279272e..2e2007e773 100644
--- a/components/utilities/utest/utest_assert.h
+++ b/components/utilities/utest/utest_assert.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -30,10 +30,10 @@ void utest_assert_buf(const char *a, const char *b, rt_size_t sz, rt_bool_t equa
 
 /**
  * uassert_x macros
- * 
+ *
  * @brief Get the utest data structure handle.
  *        No need for the user to call this function directly.
- * 
+ *
  * @macro uassert_true          if @value is true,     not assert, means passing.
  * @macro uassert_false         if @value is false,    not assert, means passing.
  * @macro uassert_null          if @value is null,     not assert, means passing.
@@ -46,7 +46,7 @@ void utest_assert_buf(const char *a, const char *b, rt_size_t sz, rt_bool_t equa
  * @macro uassert_buf_not_equal if @a not equal to @b, not assert, means passing. buf type test.
  * @macro uassert_in_range      if @value is in range of min and max,     not assert, means passing.
  * @macro uassert_not_in_range  if @value is not in range of min and max, not assert, means passing.
- * 
+ *
 */
 #define uassert_true(value)      __utest_assert(value, "(" #value ") is false")
 #define uassert_false(value)     __utest_assert(!(value), "(" #value ") is true")
@@ -62,7 +62,7 @@ void utest_assert_buf(const char *a, const char *b, rt_size_t sz, rt_bool_t equa
 #define uassert_buf_equal(a, b, sz)      utest_assert_buf((const char*)(a), (const char*)(b), (sz), RT_TRUE, __FILE__, __LINE__, __func__, "buf not equal")
 #define uassert_buf_not_equal(a, b, sz)  utest_assert_buf((const char*)(a), (const char*)(b), (sz), RT_FALSE, __FILE__, __LINE__, __func__, "buf equal")
 
-#define uassert_in_range(value, min, max)     __utest_assert(((value >= min) && (value <= max)), "(" #value ") not in range("#min","#max")") 
+#define uassert_in_range(value, min, max)     __utest_assert(((value >= min) && (value <= max)), "(" #value ") not in range("#min","#max")")
 #define uassert_not_in_range(value, min, max) __utest_assert(!((value >= min) && (value <= max)), "(" #value ") in range("#min","#max")")
 
 #ifdef __cplusplus
diff --git a/components/utilities/utest/utest_log.h b/components/utilities/utest/utest_log.h
index 0403268351..6aa54386a8 100644
--- a/components/utilities/utest/utest_log.h
+++ b/components/utilities/utest/utest_log.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/utilities/ymodem/ymodem.c b/components/utilities/ymodem/ymodem.c
index 07055db615..a74237689d 100644
--- a/components/utilities/ymodem/ymodem.c
+++ b/components/utilities/ymodem/ymodem.c
@@ -1,5 +1,5 @@
 /*
- * COPYRIGHT (C) 2012, Real-Thread Information Technology Ltd
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
  * All rights reserved
  *
  * SPDX-License-Identifier: Apache-2.0
@@ -13,7 +13,7 @@
 #include <rthw.h>
 #include "ymodem.h"
 
-#ifdef YMODEM_USING_CRC_TABLE 
+#ifdef YMODEM_USING_CRC_TABLE
 static const rt_uint16_t ccitt_table[256] =
 {
     0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7,
diff --git a/components/utilities/ymodem/ymodem.h b/components/utilities/ymodem/ymodem.h
index 8419290e13..7006cf268d 100644
--- a/components/utilities/ymodem/ymodem.h
+++ b/components/utilities/ymodem/ymodem.h
@@ -1,5 +1,5 @@
 /*
- * COPYRIGHT (C) 2012, Real-Thread Information Technology Ltd
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
  * All rights reserved
  *
  * SPDX-License-Identifier: Apache-2.0
diff --git a/components/utilities/zmodem/crc.h b/components/utilities/zmodem/crc.h
index fd11c1960a..c5251a7aa1 100644
--- a/components/utilities/zmodem/crc.h
+++ b/components/utilities/zmodem/crc.h
@@ -39,14 +39,14 @@ static unsigned short crctab[256] = {
 };
 
 /*
- * updcrc macro derived from article Copyright (C) 1986 Stephen Satchell. 
+ * updcrc macro derived from article Copyright (C) 1986 Stephen Satchell.
  *  NOTE: First srgument must be in range 0 to 255.
  *        Second argument is referenced twice.
- * 
- * Programmers may incorporate any or all code into their programs, 
- * giving proper credit within the source. Publication of the 
- * source routines is permitted so long as proper credit is given 
- * to Stephen Satchell, Satchell Evaluations and Chuck Forsberg, 
+ *
+ * Programmers may incorporate any or all code into their programs,
+ * giving proper credit within the source. Publication of the
+ * source routines is permitted so long as proper credit is given
+ * to Stephen Satchell, Satchell Evaluations and Chuck Forsberg,
  * Omen Technology.
  */
 
diff --git a/components/utilities/zmodem/rz.c b/components/utilities/zmodem/rz.c
index 1324b5994b..1845fd24c2 100644
--- a/components/utilities/zmodem/rz.c
+++ b/components/utilities/zmodem/rz.c
@@ -1,11 +1,11 @@
 /*
  * File      : rz.c
- * the implemention of receiving files from the remote computers  
+ * the implemention of receiving files from the remote computers
  * through the zmodem protocol.
  * Change Logs:
  * Date           Author       Notes
- * 2011-03-29     itspy       
- * 2011-12-12     aozima       fixed syntax error.       
+ * 2011-03-29     itspy
+ * 2011-12-12     aozima       fixed syntax error.
  */
 
 #include <rtthread.h>
@@ -35,293 +35,293 @@ void zr_start(char *path)
 {
     struct zfile *zf;
     rt_uint8_t n;
-	char ch,*p,*q;
-	rt_err_t res = -RT_ERROR;
+    char ch,*p,*q;
+    rt_err_t res = -RT_ERROR;
 
-	zf = rt_malloc(sizeof(struct zfile));
-	if (zf == RT_NULL)
-	{
-	    rt_kprintf("zf: out of memory\r\n");
-		return;
-	}
-	memset(zf, 0, sizeof(struct zfile));
+    zf = rt_malloc(sizeof(struct zfile));
+    if (zf == RT_NULL)
+    {
+        rt_kprintf("zf: out of memory\r\n");
+        return;
+    }
+    memset(zf, 0, sizeof(struct zfile));
     zf->fname = path;
-	zf->fd = -1;
-	res = zrec_files(zf);   
-	p = zf->fname;
-	for (;;)
-	{
-		q = strstr(p,"/");
-		if (q == RT_NULL)  break;
-		p = q+1;
-	}	   
+    zf->fd = -1;
+    res = zrec_files(zf);
+    p = zf->fname;
+    for (;;)
+    {
+        q = strstr(p,"/");
+        if (q == RT_NULL)  break;
+        p = q+1;
+    }
     if (res == RT_EOK)
-    {		  
+    {
         rt_kprintf("\b\b\bfile: %s                           \r\n",p);
-		rt_kprintf("size: %ld bytes\r\n",zf->bytes_received);
-		rt_kprintf("receive completed.\r\n");
-		close(zf->fd);
-		rt_free(zf->fname);
+        rt_kprintf("size: %ld bytes\r\n",zf->bytes_received);
+        rt_kprintf("receive completed.\r\n");
+        close(zf->fd);
+        rt_free(zf->fname);
     }
     else
     {
         rt_kprintf("\b\b\bfile: %s                           \r\n",p);
-		rt_kprintf("size: 0 bytes\r\n");
-		rt_kprintf("receive failed.\r\n");
-		if (zf->fd >= 0)
-		{
-	        close(zf->fd);
-	        unlink(zf->fname);    /* remove this file */ 
-			rt_free(zf->fname);
-		}	
+        rt_kprintf("size: 0 bytes\r\n");
+        rt_kprintf("receive failed.\r\n");
+        if (zf->fd >= 0)
+        {
+            close(zf->fd);
+            unlink(zf->fname);    /* remove this file */
+            rt_free(zf->fname);
+        }
+    }
+    rt_free(zf);
+    /* waiting,clear console buffer */
+    rt_thread_delay(RT_TICK_PER_SECOND/2);
+    while(1)
+    {
+       n=rt_device_read(shell->device, 0, &ch, 1);
+       if (n == 0) break;
     }
-	rt_free(zf);
-	/* waiting,clear console buffer */
-	rt_thread_delay(RT_TICK_PER_SECOND/2);
-	while(1)                     
-	{
-	   n=rt_device_read(shell->device, 0, &ch, 1);
-	   if (n == 0) break;
-	}
 
-	return ;
+    return ;
 }
 
 /* receiver init, wait for ack */
 static rt_err_t zrec_init(rt_uint8_t *rxbuf, struct zfile *zf)
 {
     rt_uint8_t err_cnt = 0;
-	rt_err_t res = -RT_ERROR;
+    rt_err_t res = -RT_ERROR;
 
-	for (;;) 
-	{
-		zput_pos(0L);
-		tx_header[ZF0] = ZF0_CMD;
-		tx_header[ZF1] = ZF1_CMD;
-		tx_header[ZF2] = ZF2_CMD;
-		zsend_hex_header(ZRINIT, tx_header);
+    for (;;)
+    {
+        zput_pos(0L);
+        tx_header[ZF0] = ZF0_CMD;
+        tx_header[ZF1] = ZF1_CMD;
+        tx_header[ZF2] = ZF2_CMD;
+        zsend_hex_header(ZRINIT, tx_header);
 again:
         res = zget_header(rx_header);
-		switch(res)
-		{
-		case ZFILE:						 
-			 ZF0_CMD  = rx_header[ZF0];
-			 ZF1_CMD  = rx_header[ZF1];
-			 ZF2_CMD  = rx_header[ZF2];
-			 ZF3_CMD  = rx_header[ZF3];
-			 res = zget_data(rxbuf, RX_BUFFER_SIZE);
-			 if (res == GOTCRCW)
-			 {
-	             if ((res =zget_file_info((char*)rxbuf,zf))!= RT_EOK) 
-	             {
-	                 zsend_hex_header(ZSKIP, tx_header);
-		             return (res);
-	             }
-			     return RT_EOK;; 
-			 }     
-			 zsend_hex_header(ZNAK, tx_header);
-			 goto again;
-		case ZSINIT:
-			 if (zget_data((rt_uint8_t*)Attn, ZATTNLEN) == GOTCRCW) 	  /* send zack */
-			 {
-				zsend_hex_header(ZACK, tx_header);
-				goto again;
-			 }
-			 zsend_hex_header(ZNAK, tx_header);		     /* send znak */
-			 goto again;
-		case ZRQINIT:
-			 continue;
-		case ZEOF:
-			 continue;
-		case ZCOMPL:
-			 goto again;
-		case ZFIN:			     /* end file session */
-			 zrec_ack_bibi(); 
-			 return res;
-		 default:
-		      if (++err_cnt >1000) return -RT_ERROR;
-		      continue;
-		}
-	}
+        switch(res)
+        {
+        case ZFILE:
+             ZF0_CMD  = rx_header[ZF0];
+             ZF1_CMD  = rx_header[ZF1];
+             ZF2_CMD  = rx_header[ZF2];
+             ZF3_CMD  = rx_header[ZF3];
+             res = zget_data(rxbuf, RX_BUFFER_SIZE);
+             if (res == GOTCRCW)
+             {
+                 if ((res =zget_file_info((char*)rxbuf,zf))!= RT_EOK)
+                 {
+                     zsend_hex_header(ZSKIP, tx_header);
+                     return (res);
+                 }
+                 return RT_EOK;;
+             }
+             zsend_hex_header(ZNAK, tx_header);
+             goto again;
+        case ZSINIT:
+             if (zget_data((rt_uint8_t*)Attn, ZATTNLEN) == GOTCRCW)       /* send zack */
+             {
+                zsend_hex_header(ZACK, tx_header);
+                goto again;
+             }
+             zsend_hex_header(ZNAK, tx_header);          /* send znak */
+             goto again;
+        case ZRQINIT:
+             continue;
+        case ZEOF:
+             continue;
+        case ZCOMPL:
+             goto again;
+        case ZFIN:               /* end file session */
+             zrec_ack_bibi();
+             return res;
+         default:
+              if (++err_cnt >1000) return -RT_ERROR;
+              continue;
+        }
+    }
 }
 
 /* receive files */
 static rt_err_t zrec_files(struct zfile *zf)
 {
-	rt_uint8_t *rxbuf;
-	rt_err_t res = -RT_ERROR;
+    rt_uint8_t *rxbuf;
+    rt_err_t res = -RT_ERROR;
 
-	zinit_parameter();
-	rxbuf = rt_malloc(RX_BUFFER_SIZE*sizeof(rt_uint8_t));
-	if (rxbuf == RT_NULL)
-	{
-		 rt_kprintf("rxbuf: out of memory\r\n");
-		 return -RT_ERROR;
-	}
-	rt_kprintf("\r\nrz: ready...\r\n");	   /* here ready to receive things */
-	if ((res = zrec_init(rxbuf,zf))!= RT_EOK)
-	{
-	     rt_kprintf("\b\b\breceive init failed\r\n");
-		 rt_free(rxbuf);
-		 return -RT_ERROR;
-	}
-	res = zrec_file(rxbuf,zf);
-	if (res == ZFIN)
-	{	
-	    rt_free(rxbuf); 
-	    return RT_EOK;	     /* if finish session */
-	}
-	else if (res == ZCAN)
-	{
+    zinit_parameter();
+    rxbuf = rt_malloc(RX_BUFFER_SIZE*sizeof(rt_uint8_t));
+    if (rxbuf == RT_NULL)
+    {
+         rt_kprintf("rxbuf: out of memory\r\n");
+         return -RT_ERROR;
+    }
+    rt_kprintf("\r\nrz: ready...\r\n");    /* here ready to receive things */
+    if ((res = zrec_init(rxbuf,zf))!= RT_EOK)
+    {
+         rt_kprintf("\b\b\breceive init failed\r\n");
+         rt_free(rxbuf);
+         return -RT_ERROR;
+    }
+    res = zrec_file(rxbuf,zf);
+    if (res == ZFIN)
+    {
         rt_free(rxbuf);
-		return ZCAN;        /* cancel by sender */
-	}
-	else
-	{
-	   zsend_can();
-	   rt_free(rxbuf);
-	   return res;
-	}
+        return RT_EOK;       /* if finish session */
+    }
+    else if (res == ZCAN)
+    {
+        rt_free(rxbuf);
+        return ZCAN;        /* cancel by sender */
+    }
+    else
+    {
+       zsend_can();
+       rt_free(rxbuf);
+       return res;
+    }
 }
 /* receive file */
 static rt_err_t zrec_file(rt_uint8_t *rxbuf, struct zfile *zf)
 {
-	rt_err_t res = - RT_ERROR;
-	rt_uint16_t err_cnt = 0;
+    rt_err_t res = - RT_ERROR;
+    rt_uint16_t err_cnt = 0;
 
-	do 
-	{
-		zput_pos(zf->bytes_received);
-		zsend_hex_header(ZRPOS, tx_header);
+    do
+    {
+        zput_pos(zf->bytes_received);
+        zsend_hex_header(ZRPOS, tx_header);
 again:
         res = zget_header(rx_header);
-		switch (res) 
-		{
-		case ZDATA:
-			 zget_pos(Rxpos);
-			 if (Rxpos != zf->bytes_received)
-			 {
-                 zsend_break(Attn);      
-				 continue;
-			 }
-			 err_cnt = 0;
-			 res = zrec_file_data(rxbuf,zf);
-			 if (res == -RT_ERROR)
-			 {	  
-			     zsend_break(Attn);
-			     continue;
-			 }
-			 else if (res == GOTCAN) return res;	
-			 else goto again;	 
-		case ZRPOS:
-		     zget_pos(Rxpos);
-			 continue;
-		case ZEOF:
-		     err_cnt = 0;
-		     zget_pos(Rxpos);
-			 if (Rxpos != zf->bytes_received  || Rxpos != zf->bytes_total) 
-			 {
-			     continue;
-			 }							 
-		     return (zrec_init(rxbuf,zf));    /* resend ZRINIT packet,ready to receive next file */
+        switch (res)
+        {
+        case ZDATA:
+             zget_pos(Rxpos);
+             if (Rxpos != zf->bytes_received)
+             {
+                 zsend_break(Attn);
+                 continue;
+             }
+             err_cnt = 0;
+             res = zrec_file_data(rxbuf,zf);
+             if (res == -RT_ERROR)
+             {
+                 zsend_break(Attn);
+                 continue;
+             }
+             else if (res == GOTCAN) return res;
+             else goto again;
+        case ZRPOS:
+             zget_pos(Rxpos);
+             continue;
+        case ZEOF:
+             err_cnt = 0;
+             zget_pos(Rxpos);
+             if (Rxpos != zf->bytes_received  || Rxpos != zf->bytes_total)
+             {
+                 continue;
+             }
+             return (zrec_init(rxbuf,zf));    /* resend ZRINIT packet,ready to receive next file */
         case ZFIN:
-			 zrec_ack_bibi(); 
-			 return ZCOMPL; 
-		case ZCAN:
+             zrec_ack_bibi();
+             return ZCOMPL;
+        case ZCAN:
 #ifdef ZDEBUG
              rt_kprintf("error code: sender cancelled \r\n");
 #endif
-			 zf->bytes_received = 0L;		 /* throw the received data */  
-		     return res;
-		case ZSKIP:
-			 return res;
-		case -RT_ERROR:             
-			 zsend_break(Attn);
-			 continue;
-		case ZNAK:
-		case TIMEOUT:
-		default: 
-			continue;
-		}
-	} while(++err_cnt < 100);
+             zf->bytes_received = 0L;        /* throw the received data */
+             return res;
+        case ZSKIP:
+             return res;
+        case -RT_ERROR:
+             zsend_break(Attn);
+             continue;
+        case ZNAK:
+        case TIMEOUT:
+        default:
+            continue;
+        }
+    } while(++err_cnt < 100);
 
-	return res;
+    return res;
 }
 
 /* proccess file infomation */
 static rt_err_t zget_file_info(char *name, struct zfile *zf)
 {
-	char *p;
-	char *full_path,*ptr;
-	rt_uint16_t i,len;
-	rt_err_t res  = -RT_ERROR;
-	struct statfs buf;
-	struct stat finfo;
+    char *p;
+    char *full_path,*ptr;
+    rt_uint16_t i,len;
+    rt_err_t res  = -RT_ERROR;
+    struct statfs buf;
+    struct stat finfo;
 
-	if (zf->fname == RT_NULL) 		       /* extract file path  */
+    if (zf->fname == RT_NULL)              /* extract file path  */
     {
-	    len = strlen(name)+2; 
-	}
-	else
-	    len = strlen(zf->fname)+strlen(name)+2; 
+        len = strlen(name)+2;
+    }
+    else
+        len = strlen(zf->fname)+strlen(name)+2;
     full_path = rt_malloc(len);
-    if (full_path == RT_NULL)		 
-	{
-	    zsend_can();
-		rt_kprintf("\b\b\bfull_path: out of memory\n");
-		rt_free(full_path);
-		return -RT_ERROR;
-	}
-	memset(full_path,0,len);
+    if (full_path == RT_NULL)
+    {
+        zsend_can();
+        rt_kprintf("\b\b\bfull_path: out of memory\n");
+        rt_free(full_path);
+        return -RT_ERROR;
+    }
+    memset(full_path,0,len);
 
     for (i=0,ptr=zf->fname;i<len-strlen(name)-2;i++)
-		 full_path[i] = *ptr++;
+         full_path[i] = *ptr++;
     full_path[len-strlen(name)-2] = '/';
-	/* check if is a directory */
-	if ((zf->fd=open(full_path, DFS_O_DIRECTORY,0)) < 0)	 
-	{
-	    zsend_can();
-	    rt_kprintf("\b\b\bcan not open file:%s\r\n",zf->fname+1);
-		close(zf->fd);
-		zf->fd = -1;
-		rt_free(full_path);
-	    return res;
-	}
-	fstat(zf->fd, &finfo);
-	if ((finfo.st_mode&S_IFDIR) != S_IFDIR)           
-	{
-		close(zf->fd);
-		zf->fd = -1;
-		return res;
-	}
-	close(zf->fd);	   
-	/* get fullpath && file attributes */
+    /* check if is a directory */
+    if ((zf->fd=open(full_path, DFS_O_DIRECTORY,0)) < 0)
+    {
+        zsend_can();
+        rt_kprintf("\b\b\bcan not open file:%s\r\n",zf->fname+1);
+        close(zf->fd);
+        zf->fd = -1;
+        rt_free(full_path);
+        return res;
+    }
+    fstat(zf->fd, &finfo);
+    if ((finfo.st_mode&S_IFDIR) != S_IFDIR)
+    {
+        close(zf->fd);
+        zf->fd = -1;
+        return res;
+    }
+    close(zf->fd);
+    /* get fullpath && file attributes */
     strcat(full_path,name);
     zf->fname = full_path;
-	p = strlen(name)+name+1;	   
-	sscanf((const char *)p, "%ld%lo%o", &zf->bytes_total,&zf->ctime,&zf->mode);
+    p = strlen(name)+name+1;
+    sscanf((const char *)p, "%ld%lo%o", &zf->bytes_total,&zf->ctime,&zf->mode);
 #if defined(RT_USING_DFS) && defined(DFS_USING_WORKDIR)
-	dfs_statfs(working_directory,&buf);
-	if (zf->bytes_total > (buf.f_blocks * buf.f_bfree))
-	{
-	    zsend_can();
-	    rt_kprintf("\b\b\bnot enough disk space\r\n");
-		zf->fd = -1;
-		rt_free(full_path);
-		return -RT_ERROR;  
-	}
+    dfs_statfs(working_directory,&buf);
+    if (zf->bytes_total > (buf.f_blocks * buf.f_bfree))
+    {
+        zsend_can();
+        rt_kprintf("\b\b\bnot enough disk space\r\n");
+        zf->fd = -1;
+        rt_free(full_path);
+        return -RT_ERROR;
+    }
 #else
     buf = buf;
 #endif
-	zf->bytes_received   = 0L;
-	if ((zf->fd = open(zf->fname,DFS_O_CREAT|DFS_O_WRONLY,0)) < 0)	 /* create or replace exist file */
-	{
-	    zsend_can();
-	    rt_kprintf("\b\b\bcan not create file:%s \r\n",zf->fname);	
-		return -RT_ERROR;
-	}
+    zf->bytes_received   = 0L;
+    if ((zf->fd = open(zf->fname,DFS_O_CREAT|DFS_O_WRONLY,0)) < 0)   /* create or replace exist file */
+    {
+        zsend_can();
+        rt_kprintf("\b\b\bcan not create file:%s \r\n",zf->fname);
+        return -RT_ERROR;
+    }
 
-	return RT_EOK;
+    return RT_EOK;
 }
 
 /* receive file data,continously, no ack */
@@ -330,72 +330,72 @@ static rt_err_t zrec_file_data(rt_uint8_t *buf, struct zfile *zf)
     rt_err_t res = -RT_ERROR;
 
 more_data:
-	res = zget_data(buf,RX_BUFFER_SIZE);
-	switch(res)
-	{
-	case GOTCRCW:						   /* zack received */
-		 zwrite_file(buf,Rxcount,zf);
-		 zf->bytes_received += Rxcount;
-		 zput_pos(zf->bytes_received);
-		 zsend_line(XON);
-		 zsend_hex_header(ZACK, tx_header);
-		 return RT_EOK;
-	case GOTCRCQ:
-		 zwrite_file(buf,Rxcount,zf);
-		 zf->bytes_received += Rxcount;
-		 zput_pos(zf->bytes_received);
-		 zsend_hex_header(ZACK, tx_header);
-		 goto more_data;
-	case GOTCRCG:
-		 zwrite_file(buf,Rxcount,zf);
-		 zf->bytes_received += Rxcount;
-		 goto more_data;
-	case GOTCRCE:
-		 zwrite_file(buf,Rxcount,zf);
-		 zf->bytes_received += Rxcount;
-		 return RT_EOK;
-	case GOTCAN:
+    res = zget_data(buf,RX_BUFFER_SIZE);
+    switch(res)
+    {
+    case GOTCRCW:                          /* zack received */
+         zwrite_file(buf,Rxcount,zf);
+         zf->bytes_received += Rxcount;
+         zput_pos(zf->bytes_received);
+         zsend_line(XON);
+         zsend_hex_header(ZACK, tx_header);
+         return RT_EOK;
+    case GOTCRCQ:
+         zwrite_file(buf,Rxcount,zf);
+         zf->bytes_received += Rxcount;
+         zput_pos(zf->bytes_received);
+         zsend_hex_header(ZACK, tx_header);
+         goto more_data;
+    case GOTCRCG:
+         zwrite_file(buf,Rxcount,zf);
+         zf->bytes_received += Rxcount;
+         goto more_data;
+    case GOTCRCE:
+         zwrite_file(buf,Rxcount,zf);
+         zf->bytes_received += Rxcount;
+         return RT_EOK;
+    case GOTCAN:
 #ifdef ZDEBUG
-	     rt_kprintf("error code : ZCAN \r\n");
+         rt_kprintf("error code : ZCAN \r\n");
 #endif
-		 return res;
-	case TIMEOUT:
-	     return res;
+         return res;
+    case TIMEOUT:
+         return res;
     case -RT_ERROR:
-	     zsend_break(Attn);
-	     return res;
-	default:
-	     return res;
-	}
+         zsend_break(Attn);
+         return res;
+    default:
+         return res;
+    }
 }
 
 /* write file */
 static rt_err_t zwrite_file(rt_uint8_t *buf,rt_uint16_t size, struct zfile *zf)
 {
-	return (write(zf->fd,buf,size));
+    return (write(zf->fd,buf,size));
 }
 
 /* ack bibi */
 static void zrec_ack_bibi(void)
 {
-	rt_uint8_t i;
+    rt_uint8_t i;
 
-	zput_pos(0L);
-	for (i=0;i<3;i++) 
-	{
-		zsend_hex_header(ZFIN, tx_header);
-		switch (zread_line(100)) 
-		{
-		case 'O':
-			 zread_line(1);	
-			 return;
-		case RCDO:
-			 return;
-		case TIMEOUT:
-		default:
-			 break;
-		}
-	}
+    zput_pos(0L);
+    for (i=0;i<3;i++)
+    {
+        zsend_hex_header(ZFIN, tx_header);
+        switch (zread_line(100))
+        {
+        case 'O':
+             zread_line(1);
+             return;
+        case RCDO:
+             return;
+        case TIMEOUT:
+        default:
+             break;
+        }
+    }
 }
 
 /* end of rz.c */
diff --git a/components/utilities/zmodem/sz.c b/components/utilities/zmodem/sz.c
index 0fde4165f6..0b0b5515f0 100644
--- a/components/utilities/zmodem/sz.c
+++ b/components/utilities/zmodem/sz.c
@@ -1,10 +1,10 @@
 /*
  * File      : sz.c
- * the implemention of sending files to the remote computers  
+ * the implemention of sending files to the remote computers
  * through the zmodem protocol.
  * Change Logs:
  * Date           Author       Notes
- * 2011-03-29     itspy       
+ * 2011-03-29     itspy
  */
 
 #include <rtthread.h>
@@ -17,10 +17,10 @@
 #include "zdef.h"
 
 
-static rt_uint8_t TX_BUFFER[TX_BUFFER_SIZE];	     /* sender buffer */
-static rt_uint8_t file_cnt = 0;		                 /* count of number of files opened */
-static rt_uint8_t Rxflags  = 0;	                  	 /* rx parameter flags */
-static rt_uint8_t ZF2_OP;		                  	 /* file transfer option */ 
+static rt_uint8_t TX_BUFFER[TX_BUFFER_SIZE];         /* sender buffer */
+static rt_uint8_t file_cnt = 0;                      /* count of number of files opened */
+static rt_uint8_t Rxflags  = 0;                      /* rx parameter flags */
+static rt_uint8_t ZF2_OP;                            /* file transfer option */
 
 void zs_start(char *path);
 static void zsend_init(void);
@@ -38,233 +38,233 @@ static void zsay_bibi(void);
 void zs_start(char *path)
 {
     struct zfile *zf;
-	rt_err_t res = RT_ERROR;
+    rt_err_t res = RT_ERROR;
     char *p,*q;
-	zf = rt_malloc(sizeof(struct zfile));
-	if (zf == RT_NULL)
-	{
-	    rt_kprintf("zf: out of memory\r\n");
-		return;
-	}
-	rt_kprintf("\r\nsz: ready...\r\n");	   /* here ready to send things */
-	memset(zf, 0, sizeof(struct zfile));
+    zf = rt_malloc(sizeof(struct zfile));
+    if (zf == RT_NULL)
+    {
+        rt_kprintf("zf: out of memory\r\n");
+        return;
+    }
+    rt_kprintf("\r\nsz: ready...\r\n");    /* here ready to send things */
+    memset(zf, 0, sizeof(struct zfile));
     zf->fname = path;
-	zf->fd = -1;
-	res = zsend_files(zf);
-	p = zf->fname;
-	for (;;)
-	{
-		q = strstr(p,"/");
-		if (q == RT_NULL)  break;
-		p = q+1;
-	}
+    zf->fd = -1;
+    res = zsend_files(zf);
+    p = zf->fname;
+    for (;;)
+    {
+        q = strstr(p,"/");
+        if (q == RT_NULL)  break;
+        p = q+1;
+    }
     if (res == RT_EOK)
     {
         rt_kprintf("\r\nfile: %s \r\nsize: %ld bytes\r\nsend completed.\r\n",
-		          p,zf->bytes_received);
+                  p,zf->bytes_received);
     }
     else
     {
         rt_kprintf("\r\nfile: %s \r\nsize: 0 bytes\r\nsend failed.\r\n",p);
     }
-	rt_free(zf);
+    rt_free(zf);
 
-	return;
+    return;
 }
 
 /* init the parameters */
 static void zsend_init(void)
 {
-	rt_err_t res = -RT_ERROR;
+    rt_err_t res = -RT_ERROR;
 
-	zinit_parameter();
-	for(;;)          /* wait ZPAD */
-	{
-		res = zread_line(800);
-		if (res == ZPAD) break;
-	}
-	for (;;) 
-	{
-	    res = zget_header(rx_header);
-		if (res == ZRINIT) break;
-	}
-	if ((rx_header[ZF1] & ZRQNVH))
-	{
-		zput_pos(0x80L);	/* Show we can var header */
-		zsend_hex_header(ZRQINIT, tx_header);
-	}
-	Rxflags = rx_header[ZF0] & 0377;
-	if (Rxflags & CANFC32) Txfcs32 = 1;    /* used 32bits CRC check */
+    zinit_parameter();
+    for(;;)          /* wait ZPAD */
+    {
+        res = zread_line(800);
+        if (res == ZPAD) break;
+    }
+    for (;;)
+    {
+        res = zget_header(rx_header);
+        if (res == ZRINIT) break;
+    }
+    if ((rx_header[ZF1] & ZRQNVH))
+    {
+        zput_pos(0x80L);    /* Show we can var header */
+        zsend_hex_header(ZRQINIT, tx_header);
+    }
+    Rxflags = rx_header[ZF0] & 0377;
+    if (Rxflags & CANFC32) Txfcs32 = 1;    /* used 32bits CRC check */
 
-	if (ZF2_OP == ZTRLE && (Rxflags & CANRLE))	  /* for RLE packet */
-		 Txfcs32 = 2;
-	else
-		ZF2_OP = 0;
+    if (ZF2_OP == ZTRLE && (Rxflags & CANRLE))    /* for RLE packet */
+         Txfcs32 = 2;
+    else
+        ZF2_OP = 0;
     /* send SINIT cmd */
-	return;
+    return;
 }
 
 /* send files */
 static rt_err_t zsend_files(struct zfile *zf)
 {
-	char *p,*q;
-	char *str = "/";
-	struct stat finfo;
-	rt_err_t res = -RT_ERROR;
+    char *p,*q;
+    char *str = "/";
+    struct stat finfo;
+    rt_err_t res = -RT_ERROR;
 
-	if (zf->fname == RT_NULL)
-	{
-	    rt_kprintf("\r\nerror: no file to be send.\r\n");
-		return res;
-	}
-	if ((zf->fd=open(zf->fname, DFS_O_RDONLY,0)) <0)
-	{
-	    rt_kprintf("\r\ncan not open file:%s\r\n",zf->fname+1);
-	    return res;
-	}
+    if (zf->fname == RT_NULL)
+    {
+        rt_kprintf("\r\nerror: no file to be send.\r\n");
+        return res;
+    }
+    if ((zf->fd=open(zf->fname, DFS_O_RDONLY,0)) <0)
+    {
+        rt_kprintf("\r\ncan not open file:%s\r\n",zf->fname+1);
+        return res;
+    }
 
-	zf->file_end = 0;
-	++file_cnt;	 
-	/* extract file name */
-	p = zf->fname;
-	for (;;)
-	{
-		q = strstr(p,str);
-		if (q == RT_NULL)  break;
-		p = q+1;
-	}	
-	q = (char*)TX_BUFFER;	  
-	for (;;)
-	{
-	    *q++ = *p++;
-		if (*p == 0) break;
-	}
-	*q++ = 0;
-	p=q;
-	while (q < (char*)(TX_BUFFER + 1024))
-		*q++ = 0;
-	/* get file attributes */
-	fstat(zf->fd,&finfo);
-	Left_sizes += finfo.st_size;			                
-	rt_sprintf(p, "%lu %lo %o 3 %d %ld", (long)finfo.st_size, finfo.st_mtime,
-			  finfo.st_mode, file_cnt, Left_sizes);
-	Left_sizes -= finfo.st_size;
-	TX_BUFFER[127] = (finfo.st_size + 127) >>7;
-	TX_BUFFER[126] = (finfo.st_size + 127) >>15;
+    zf->file_end = 0;
+    ++file_cnt;
+    /* extract file name */
+    p = zf->fname;
+    for (;;)
+    {
+        q = strstr(p,str);
+        if (q == RT_NULL)  break;
+        p = q+1;
+    }
+    q = (char*)TX_BUFFER;
+    for (;;)
+    {
+        *q++ = *p++;
+        if (*p == 0) break;
+    }
+    *q++ = 0;
+    p=q;
+    while (q < (char*)(TX_BUFFER + 1024))
+        *q++ = 0;
+    /* get file attributes */
+    fstat(zf->fd,&finfo);
+    Left_sizes += finfo.st_size;
+    rt_sprintf(p, "%lu %lo %o 3 %d %ld", (long)finfo.st_size, finfo.st_mtime,
+              finfo.st_mode, file_cnt, Left_sizes);
+    Left_sizes -= finfo.st_size;
+    TX_BUFFER[127] = (finfo.st_size + 127) >>7;
+    TX_BUFFER[126] = (finfo.st_size + 127) >>15;
 
-	zsend_init();
-	/* start sending files */							
-	res = zsend_file(zf,TX_BUFFER, (p-(char*)TX_BUFFER)+strlen(p)+1);
-	zsay_bibi();
-	close(zf->fd);
- 
-	return res;
+    zsend_init();
+    /* start sending files */
+    res = zsend_file(zf,TX_BUFFER, (p-(char*)TX_BUFFER)+strlen(p)+1);
+    zsay_bibi();
+    close(zf->fd);
+
+    return res;
 }
 
 /* send file name and related info */
 static rt_err_t zsend_file(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t len)
 {
-	rt_uint8_t cnt;
-	rt_err_t res = -RT_ERROR;
+    rt_uint8_t cnt;
+    rt_err_t res = -RT_ERROR;
 
-	for (cnt=0;cnt<5;cnt++) 
-	{  
-		tx_header[ZF0] = ZF0_CMD;	            /* file conversion option */
-		tx_header[ZF1] = ZF1_CMD;               /* file management option */
-		tx_header[ZF2] = (ZF3_CMD|ZF2_OP);	    /* file transfer option   */
-		tx_header[ZF3] = ZF3_CMD;
-		zsend_bin_header(ZFILE, tx_header);
-		zsend_bin_data(buf, len, ZCRCW);
+    for (cnt=0;cnt<5;cnt++)
+    {
+        tx_header[ZF0] = ZF0_CMD;               /* file conversion option */
+        tx_header[ZF1] = ZF1_CMD;               /* file management option */
+        tx_header[ZF2] = (ZF3_CMD|ZF2_OP);      /* file transfer option   */
+        tx_header[ZF3] = ZF3_CMD;
+        zsend_bin_header(ZFILE, tx_header);
+        zsend_bin_data(buf, len, ZCRCW);
 loop:
-		res = zget_header(rx_header);
-		switch (res) 
-		{
-		case ZRINIT:
-			 while ((res = zread_line(50)) > 0)
-			 {
-				 if (res == ZPAD) 
-				 {
-					goto loop;
-				 }
-			 }
-			 break;
-		case ZCAN:
-		case TIMEOUT:
-		case ZABORT:
-		case ZFIN:
+        res = zget_header(rx_header);
+        switch (res)
+        {
+        case ZRINIT:
+             while ((res = zread_line(50)) > 0)
+             {
+                 if (res == ZPAD)
+                 {
+                    goto loop;
+                 }
+             }
              break;
-		case -RT_ERROR:
-		case ZNAK:
-			 break;
-		case ZCRC:	                         /* no CRC request */
-			 goto loop;
-		case ZFERR:
-		case ZSKIP:
-			 break;
-		case ZRPOS:		           	         /* here we want */
-		     zget_pos(Rxpos);
-			 Txpos = Rxpos;
-			 return(zsend_file_data(zf));
-		default:
-			 break;
-		} 
-	}
+        case ZCAN:
+        case TIMEOUT:
+        case ZABORT:
+        case ZFIN:
+             break;
+        case -RT_ERROR:
+        case ZNAK:
+             break;
+        case ZCRC:                           /* no CRC request */
+             goto loop;
+        case ZFERR:
+        case ZSKIP:
+             break;
+        case ZRPOS:                          /* here we want */
+             zget_pos(Rxpos);
+             Txpos = Rxpos;
+             return(zsend_file_data(zf));
+        default:
+             break;
+        }
+    }
 
-	return res;
+    return res;
 }
 
 /* send the file data */
 static rt_err_t zsend_file_data(struct zfile *zf)
 {
-	rt_int16_t cnt;
-	rt_uint8_t cmd;
-	rt_err_t res = -RT_ERROR;	
-	/* send ZDATA packet, start to send data */
+    rt_int16_t cnt;
+    rt_uint8_t cmd;
+    rt_err_t res = -RT_ERROR;
+    /* send ZDATA packet, start to send data */
 start_send:
-	zput_pos(Txpos);
-	zsend_bin_header(ZDATA, tx_header);
-	do
-	{
-		cnt = zfill_buffer(zf,TX_BUFFER,RX_BUFFER_SIZE);
-		if (cnt < RX_BUFFER_SIZE )
-			cmd = ZCRCE;				
-		else
-			cmd = ZCRCG;
-		zsend_bin_data(TX_BUFFER, cnt, cmd);
-		zf->bytes_received= Txpos += cnt;
-		if (cmd == ZCRCW)
-			goto get_syn1;
-	} while (cnt == RX_BUFFER_SIZE);
-	for (;;) 	                     /*  get ack and check if send finish */
-	{
-		zput_pos(Txpos);
-		zsend_bin_header(ZEOF, tx_header);
+    zput_pos(Txpos);
+    zsend_bin_header(ZDATA, tx_header);
+    do
+    {
+        cnt = zfill_buffer(zf,TX_BUFFER,RX_BUFFER_SIZE);
+        if (cnt < RX_BUFFER_SIZE )
+            cmd = ZCRCE;
+        else
+            cmd = ZCRCG;
+        zsend_bin_data(TX_BUFFER, cnt, cmd);
+        zf->bytes_received= Txpos += cnt;
+        if (cmd == ZCRCW)
+            goto get_syn1;
+    } while (cnt == RX_BUFFER_SIZE);
+    for (;;)                         /*  get ack and check if send finish */
+    {
+        zput_pos(Txpos);
+        zsend_bin_header(ZEOF, tx_header);
 get_syn1:
         res = zget_sync();
-		switch (res) 
-		{
-		case ZACK:
-			 goto get_syn1;
-		case ZNAK:
-			 continue;
-		case ZRPOS:				        /* resend here */
-		     lseek(zf->fd,Txpos,0);
-			 goto start_send;
-		case ZRINIT:		           /*  send finish,then begin to send next file */
-			 return RT_EOK;
-		case ZSKIP:
-		case -RT_ERROR:
-		     return res;
-		default:
+        switch (res)
+        {
+        case ZACK:
+             goto get_syn1;
+        case ZNAK:
+             continue;
+        case ZRPOS:                     /* resend here */
+             lseek(zf->fd,Txpos,0);
+             goto start_send;
+        case ZRINIT:                   /*  send finish,then begin to send next file */
+             return RT_EOK;
+        case ZSKIP:
+        case -RT_ERROR:
              return res;
-		}
-	}
+        default:
+             return res;
+        }
+    }
 }
 
 /* fill file data to buffer*/
 static rt_uint16_t zfill_buffer(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t size)
 {
-	return (read(zf->fd,buf,size));
+    return (read(zf->fd,buf,size));
 }
 
 /* wait sync(ack) from the receiver */
@@ -272,50 +272,50 @@ static rt_err_t zget_sync(void)
 {
     rt_err_t res = -RT_ERROR;
 
-	for (;;) 
-	{
-		res = zget_header(rx_header);
-		switch (res) 
-		{
-		case ZCAN:
-		case ZABORT:
-		case ZFIN:
-		case TIMEOUT:
-			 return -RT_ERROR;
-		case ZRPOS:		             /* get pos, need to resend */
-		     zget_pos(Rxpos);
-			 Txpos = Rxpos;
-			 return res;
-		case ZACK:
-			 return res;
-		case ZRINIT:		         /* get ZRINIT indicate that the prev file send completed */
-			 return res;
-		case ZSKIP:
-			 return res;
-		case -RT_ERROR:
-		default:
-			 zsend_bin_header(ZNAK, tx_header);
-			 continue;
-		}
-	}
+    for (;;)
+    {
+        res = zget_header(rx_header);
+        switch (res)
+        {
+        case ZCAN:
+        case ZABORT:
+        case ZFIN:
+        case TIMEOUT:
+             return -RT_ERROR;
+        case ZRPOS:                  /* get pos, need to resend */
+             zget_pos(Rxpos);
+             Txpos = Rxpos;
+             return res;
+        case ZACK:
+             return res;
+        case ZRINIT:                 /* get ZRINIT indicate that the prev file send completed */
+             return res;
+        case ZSKIP:
+             return res;
+        case -RT_ERROR:
+        default:
+             zsend_bin_header(ZNAK, tx_header);
+             continue;
+        }
+    }
 }
 
 /* say "bibi" to the receiver */
 static void zsay_bibi(void)
 {
-	for (;;) 
-	{
-		zput_pos(0L);	            	      /* reninit position of next file*/
-		zsend_hex_header(ZFIN, tx_header);	  /* send finished session cmd */
-		switch (zget_header(rx_header)) 
-		{
-		case ZFIN:
-			zsend_line('O'); 
-			zsend_line('O'); 
-		case ZCAN:
-		case TIMEOUT:
-			return;
-		}
-	}
+    for (;;)
+    {
+        zput_pos(0L);                         /* reninit position of next file*/
+        zsend_hex_header(ZFIN, tx_header);    /* send finished session cmd */
+        switch (zget_header(rx_header))
+        {
+        case ZFIN:
+            zsend_line('O');
+            zsend_line('O');
+        case ZCAN:
+        case TIMEOUT:
+            return;
+        }
+    }
 }
 /* end of sz.c */
diff --git a/components/utilities/zmodem/zcore.c b/components/utilities/zmodem/zcore.c
index 02ffbba830..75d9647348 100644
--- a/components/utilities/zmodem/zcore.c
+++ b/components/utilities/zmodem/zcore.c
@@ -3,7 +3,7 @@
  * the core functions of implementing zmodem protocol
  * Change Logs:
  * Date           Author       Notes
- * 2011-03-29     itspy       
+ * 2011-03-29     itspy
  */
 
 #include <rtthread.h>
@@ -16,22 +16,22 @@
 #include <stdio.h>
 #include "zdef.h"
 
-char ZF0_CMD;		             /* file conversion request */
-char ZF1_CMD;	 	             /* file management request */
-char ZF2_CMD;		             /* file transport request */
-char ZF3_CMD; 
-rt_uint8_t   Rxframeind;		 /* ZBIN ZBIN32, or ZHEX type of frame */
-rt_uint16_t  Rxcount;		     /* received count*/
-char header_type;	             /* header type */
-rt_uint8_t   rx_header[4];	     /* received header */
-rt_uint8_t   tx_header[4];	     /* transmitted header */
-rt_uint32_t  Rxpos;		         /* received file position */
-rt_uint32_t  Txpos;		         /* transmitted file position */
-rt_uint8_t   Txfcs32;		     /* TURE means send binary frames with 32 bit FCS */
-rt_uint8_t   TxCRC;		         /* controls 32 bit CRC being sent */
-rt_uint8_t   RxCRC;		         /* indicates/controls 32 bit CRC being received */			                     
+char ZF0_CMD;                    /* file conversion request */
+char ZF1_CMD;                    /* file management request */
+char ZF2_CMD;                    /* file transport request */
+char ZF3_CMD;
+rt_uint8_t   Rxframeind;         /* ZBIN ZBIN32, or ZHEX type of frame */
+rt_uint16_t  Rxcount;            /* received count*/
+char header_type;                /* header type */
+rt_uint8_t   rx_header[4];       /* received header */
+rt_uint8_t   tx_header[4];       /* transmitted header */
+rt_uint32_t  Rxpos;              /* received file position */
+rt_uint32_t  Txpos;              /* transmitted file position */
+rt_uint8_t   Txfcs32;            /* TURE means send binary frames with 32 bit FCS */
+rt_uint8_t   TxCRC;              /* controls 32 bit CRC being sent */
+rt_uint8_t   RxCRC;              /* indicates/controls 32 bit CRC being received */
                                  /* 0 == CRC16,  1 == CRC32,  2 == CRC32 + RLE */
-char Attn[ZATTNLEN+1];	         /* attention string rx sends to tx on err */
+char Attn[ZATTNLEN+1];           /* attention string rx sends to tx on err */
 
 void zinit_parameter(void);
 void zsend_bin_header(rt_uint8_t type, rt_uint8_t *hdr);
@@ -52,670 +52,670 @@ rt_int16_t zread_byte(void);
 rt_int16_t zxor_read(void);
 void zput_pos(rt_uint32_t pos);
 void zget_pos(rt_uint32_t pos);
- 
 
- 
+
+
 
 void zinit_parameter(void)
 {
     rt_uint8_t i;
 
-    ZF0_CMD  = CANFC32|CANFDX|CANOVIO;		/*  not chose CANFC32,CANRLE,although it have been supported */
-	ZF1_CMD  = 0;							    /* fix header length,not support CANVHDR */
-	ZF2_CMD  = 0;
-	ZF3_CMD  = 0;	
-	Rxframeind =0;
-	header_type   = 0;
-	Rxcount  = 0;
-	for (i=0;i<4;i++) rx_header[i] = tx_header[i] = 0;
-	Rxpos    = Txpos = 0;
-	RxCRC    = 0;	
-	Txfcs32  = 0;
+    ZF0_CMD  = CANFC32|CANFDX|CANOVIO;      /*  not chose CANFC32,CANRLE,although it have been supported */
+    ZF1_CMD  = 0;                               /* fix header length,not support CANVHDR */
+    ZF2_CMD  = 0;
+    ZF3_CMD  = 0;
+    Rxframeind =0;
+    header_type   = 0;
+    Rxcount  = 0;
+    for (i=0;i<4;i++) rx_header[i] = tx_header[i] = 0;
+    Rxpos    = Txpos = 0;
+    RxCRC    = 0;
+    Txfcs32  = 0;
 
-	return ;
+    return ;
 }
 
 /* send binary header */
 void zsend_bin_header(rt_uint8_t type, rt_uint8_t *hdr)
 {
-	rt_uint8_t i;
-	rt_uint32_t crc;
+    rt_uint8_t i;
+    rt_uint32_t crc;
 
-	zsend_byte(ZPAD); 
-	zsend_byte(ZDLE);
-	TxCRC = Txfcs32;
-	if (TxCRC == 0)
-	{
-		zsend_byte(ZBIN);
-		zsend_zdle_char(type);
-		/* add 16bits crc */
-	    crc = 0L;
-	    crc = updcrc16(type, 0);
-		for (i=0;i<4;i++)
-		{
-		    zsend_zdle_char(*hdr);
-		    crc = updcrc16((0377 & *hdr++),crc);
-		}
-    	crc = updcrc16(0,updcrc16(0,crc));
-		zsend_zdle_char(((int)(crc>>8)));
-		zsend_zdle_char(crc);
-	}
-	else if(TxCRC == 1)   
-	{
+    zsend_byte(ZPAD);
+    zsend_byte(ZDLE);
+    TxCRC = Txfcs32;
+    if (TxCRC == 0)
+    {
+        zsend_byte(ZBIN);
+        zsend_zdle_char(type);
+        /* add 16bits crc */
+        crc = 0L;
+        crc = updcrc16(type, 0);
+        for (i=0;i<4;i++)
+        {
+            zsend_zdle_char(*hdr);
+            crc = updcrc16((0377 & *hdr++),crc);
+        }
+        crc = updcrc16(0,updcrc16(0,crc));
+        zsend_zdle_char(((int)(crc>>8)));
+        zsend_zdle_char(crc);
+    }
+    else if(TxCRC == 1)
+    {
         zsend_byte(ZBIN32);
-		zsend_zdle_char(type);
-		/* add 32bits crc */
-	    crc = 0xffffffffL; 
-	    crc = updcrc32(type, crc);
+        zsend_zdle_char(type);
+        /* add 32bits crc */
+        crc = 0xffffffffL;
+        crc = updcrc32(type, crc);
         for (i=0;i<4;i++)
-	    {
-		    zsend_zdle_char(*hdr);
-		    crc = updcrc32((0377 & *hdr++), crc);
-     	}
-	    crc = ~crc;
-	    for (i=0; i<4;i++) 
-	    {
-		    zsend_zdle_char(crc);
-		    crc >>= 8;
-	    }
-	}
-	else if (TxCRC == 2)
-	{
-		zsend_byte(ZBINR32);
-		zsend_zdle_char(type);
-		/* add 32bits crc */
-	    crc = 0xffffffffL; 
-	    crc = updcrc32(type, crc);
+        {
+            zsend_zdle_char(*hdr);
+            crc = updcrc32((0377 & *hdr++), crc);
+        }
+        crc = ~crc;
+        for (i=0; i<4;i++)
+        {
+            zsend_zdle_char(crc);
+            crc >>= 8;
+        }
+    }
+    else if (TxCRC == 2)
+    {
+        zsend_byte(ZBINR32);
+        zsend_zdle_char(type);
+        /* add 32bits crc */
+        crc = 0xffffffffL;
+        crc = updcrc32(type, crc);
         for (i=0;i<4;i++)
-	    {
-		    zsend_zdle_char(*hdr);
-		    crc = updcrc32((0377 & *hdr++), crc);
-     	}
-	    crc = ~crc;
-	    for (i=0; i<4;i++) 
-	    {
-		    zsend_zdle_char(crc);
-		    crc >>= 8;
-	    }
-	}
+        {
+            zsend_zdle_char(*hdr);
+            crc = updcrc32((0377 & *hdr++), crc);
+        }
+        crc = ~crc;
+        for (i=0; i<4;i++)
+        {
+            zsend_zdle_char(crc);
+            crc >>= 8;
+        }
+    }
 
-	return;
+    return;
 }
 
 /* send hex header */
 void zsend_hex_header(rt_uint8_t type, rt_uint8_t *hdr)
 {
-	rt_uint8_t i;
-	rt_uint16_t crc;
+    rt_uint8_t i;
+    rt_uint16_t crc;
 
-	zsend_line(ZPAD); zsend_line(ZPAD); zsend_line(ZDLE);
-	zsend_line(ZHEX);
-	zsend_ascii(type);
-	crc = updcrc16(type, 0);
-	for (i=0; i<4; i++) 
-	{
-		zsend_ascii(*hdr); 
-		crc = updcrc16((0377 & *hdr++), crc);
-	}
-	crc = updcrc16(0,updcrc16(0,crc));
-	zsend_ascii(crc>>8);
-	zsend_ascii(crc);
-	/* send display control cmd */
-	zsend_line(015); zsend_line(0212); 
-	if (type != ZFIN && type != ZACK)
-		zsend_line(021);
-	TxCRC = 0;               /* clear tx crc type */
+    zsend_line(ZPAD); zsend_line(ZPAD); zsend_line(ZDLE);
+    zsend_line(ZHEX);
+    zsend_ascii(type);
+    crc = updcrc16(type, 0);
+    for (i=0; i<4; i++)
+    {
+        zsend_ascii(*hdr);
+        crc = updcrc16((0377 & *hdr++), crc);
+    }
+    crc = updcrc16(0,updcrc16(0,crc));
+    zsend_ascii(crc>>8);
+    zsend_ascii(crc);
+    /* send display control cmd */
+    zsend_line(015); zsend_line(0212);
+    if (type != ZFIN && type != ZACK)
+        zsend_line(021);
+    TxCRC = 0;               /* clear tx crc type */
 
-	return;
+    return;
 }
 
 /* send binary data,with frameend */
 void zsend_bin_data(rt_uint8_t *buf, rt_int16_t len, rt_uint8_t frameend)
 {
     rt_int16_t i,c,tmp;
-	rt_uint32_t crc;
+    rt_uint32_t crc;
 
     if (TxCRC == 0)         /* send binary data with 16bits crc check */
-	{
-		crc = 0x0L;
-		for (i=0;i<len;i++) 
-		{
-			zsend_zdle_char(*buf); 
-			crc = updcrc16((0377 & *buf++), crc);
-		}
-		zsend_byte(ZDLE); zsend_byte(frameend);
-		crc = updcrc16(frameend, crc);
-		crc = updcrc16(0,updcrc16(0,crc));
-		zsend_zdle_char(crc>>8);
-	    zsend_zdle_char(crc);
-	}
-	else if (TxCRC == 1)   /* send binary data with 32 bits crc check */
-	{
-		crc = 0xffffffffL;
-	    for (i=0;i<len;i++) 
-	    {
-		    c = *buf++ & 0377;
-		    zsend_zdle_char(c);
-		    crc = updcrc32(c, crc);
-	    }
-	    zsend_byte(ZDLE); zsend_byte(frameend);
-	    crc = updcrc32(frameend, crc);
-	    crc = ~crc;
-	    for (i=0;i<4;i++) 
-	    {
-		    zsend_zdle_char((int)crc);  crc >>= 8;
-	    }
-	}
-	else if (TxCRC == 2)   /* send binary data with 32bits crc check,RLE encode */
-	{
-	    crc = 0xffffffffL;
+    {
+        crc = 0x0L;
+        for (i=0;i<len;i++)
+        {
+            zsend_zdle_char(*buf);
+            crc = updcrc16((0377 & *buf++), crc);
+        }
+        zsend_byte(ZDLE); zsend_byte(frameend);
+        crc = updcrc16(frameend, crc);
+        crc = updcrc16(0,updcrc16(0,crc));
+        zsend_zdle_char(crc>>8);
+        zsend_zdle_char(crc);
+    }
+    else if (TxCRC == 1)   /* send binary data with 32 bits crc check */
+    {
+        crc = 0xffffffffL;
+        for (i=0;i<len;i++)
+        {
+            c = *buf++ & 0377;
+            zsend_zdle_char(c);
+            crc = updcrc32(c, crc);
+        }
+        zsend_byte(ZDLE); zsend_byte(frameend);
+        crc = updcrc32(frameend, crc);
+        crc = ~crc;
+        for (i=0;i<4;i++)
+        {
+            zsend_zdle_char((int)crc);  crc >>= 8;
+        }
+    }
+    else if (TxCRC == 2)   /* send binary data with 32bits crc check,RLE encode */
+    {
+        crc = 0xffffffffL;
         tmp = *buf++ & 0377;
-	    for (i = 0; --len >= 0; ++buf)
-		{
-		   if ((c = *buf & 0377) == tmp && i < 126 && len>0) 
-		   {
-			  ++i;  continue;
-		   }
-		   if (i==0)
-		   {
-			   zsend_zdle_char(tmp);
-			   crc = updcrc32(tmp, crc);
-		       if (tmp == ZRESC) 
-			   {
-				   zsend_zdle_char(0100); crc = updcrc32(0100, crc);
-			   }
-			   tmp = c; 
-		   }
-		   else if (i == 1)
-		   {
-		    	if (tmp != ZRESC)
-			    {
-				    zsend_zdle_char(tmp); zsend_zdle_char(tmp);
-				    crc = updcrc32(tmp, crc);
-				    crc = updcrc32(tmp, crc);
-				    i = 0; tmp = c;
-			    }
+        for (i = 0; --len >= 0; ++buf)
+        {
+           if ((c = *buf & 0377) == tmp && i < 126 && len>0)
+           {
+              ++i;  continue;
+           }
+           if (i==0)
+           {
+               zsend_zdle_char(tmp);
+               crc = updcrc32(tmp, crc);
+               if (tmp == ZRESC)
+               {
+                   zsend_zdle_char(0100); crc = updcrc32(0100, crc);
+               }
+               tmp = c;
+           }
+           else if (i == 1)
+           {
+                if (tmp != ZRESC)
+                {
+                    zsend_zdle_char(tmp); zsend_zdle_char(tmp);
+                    crc = updcrc32(tmp, crc);
+                    crc = updcrc32(tmp, crc);
+                    i = 0; tmp = c;
+                }
 
-		   }
-		   else 
-		   {
-			    zsend_zdle_char(ZRESC); crc = updcrc32(ZRESC, crc);
-			    if (tmp == 040 && i < 34)
-			    {
-				    i += 036;
-				    zsend_zdle_char(i); 
-				    crc = updcrc32(i, crc);
-			    }
-			    else 
-				{
-				    i += 0101;
-				    zsend_zdle_char(i); crc = updcrc32(i, crc);
-			     	zsend_zdle_char(tmp); crc = updcrc32(tmp, crc);
-			    }
-			    i = 0; tmp = c; 
-		   }
-	   }
-	   zsend_byte(ZDLE); zsend_byte(frameend);
-	   crc = updcrc32(frameend, crc);
-	   crc = ~crc;
-	   for (i=0;i<4;i++) 
-	   {
-		   zsend_zdle_char(crc);  
-		   crc >>= 8;
-	   }
-	}
-	if (frameend == ZCRCW)
-		zsend_byte(XON);
+           }
+           else
+           {
+                zsend_zdle_char(ZRESC); crc = updcrc32(ZRESC, crc);
+                if (tmp == 040 && i < 34)
+                {
+                    i += 036;
+                    zsend_zdle_char(i);
+                    crc = updcrc32(i, crc);
+                }
+                else
+                {
+                    i += 0101;
+                    zsend_zdle_char(i); crc = updcrc32(i, crc);
+                    zsend_zdle_char(tmp); crc = updcrc32(tmp, crc);
+                }
+                i = 0; tmp = c;
+           }
+       }
+       zsend_byte(ZDLE); zsend_byte(frameend);
+       crc = updcrc32(frameend, crc);
+       crc = ~crc;
+       for (i=0;i<4;i++)
+       {
+           zsend_zdle_char(crc);
+           crc >>= 8;
+       }
+    }
+    if (frameend == ZCRCW)
+        zsend_byte(XON);
 
-	return;
+    return;
 }
 
 /* receive data,with 16bits CRC check */
 static rt_int16_t zrec_data16(rt_uint8_t *buf, rt_uint16_t len)
 {
-	rt_int16_t c,crc_cnt;
-	rt_uint16_t crc;
-	rt_err_t res = -RT_ERROR;
- 	rt_uint8_t *p,flag = 0;
+    rt_int16_t c,crc_cnt;
+    rt_uint16_t crc;
+    rt_err_t res = -RT_ERROR;
+    rt_uint8_t *p,flag = 0;
 
-	p = buf;	
-	crc_cnt = 0;  crc = 0L;   
-    Rxcount = 0; 
-	while(buf <= p+len) 
-	{
-		if ((res = zread_byte()) & ~0377)
-		{
-		    if (res == GOTCRCE || res == GOTCRCG ||
-			    res == GOTCRCQ || res == GOTCRCW)
-			{
-				  c = res;
-				  c = res;
-				  crc = updcrc16(res&0377, crc);
-				  flag = 1;	
-				  continue;	
-			}
-			else if (res == GOTCAN)  return ZCAN;
-			else if (res == TIMEOUT) return TIMEOUT;
-			else return res;
+    p = buf;
+    crc_cnt = 0;  crc = 0L;
+    Rxcount = 0;
+    while(buf <= p+len)
+    {
+        if ((res = zread_byte()) & ~0377)
+        {
+            if (res == GOTCRCE || res == GOTCRCG ||
+                res == GOTCRCQ || res == GOTCRCW)
+            {
+                  c = res;
+                  c = res;
+                  crc = updcrc16(res&0377, crc);
+                  flag = 1;
+                  continue;
+            }
+            else if (res == GOTCAN)  return ZCAN;
+            else if (res == TIMEOUT) return TIMEOUT;
+            else return res;
 
-		}
-		else
-		{
-		   if (flag)
-		   {
-		       crc = updcrc16(res, crc); 
-			   crc_cnt++;
-			   if (crc_cnt < 2) continue;
-			   if ((crc & 0xffff))
-			   {
+        }
+        else
+        {
+           if (flag)
+           {
+               crc = updcrc16(res, crc);
+               crc_cnt++;
+               if (crc_cnt < 2) continue;
+               if ((crc & 0xffff))
+               {
 #ifdef ZDEBUG
-				 	 rt_kprintf("error code: CRC16 error \r\n");
+                     rt_kprintf("error code: CRC16 error \r\n");
 #endif
-					 return -RT_ERROR;
-			   } 
+                     return -RT_ERROR;
+               }
                return c;
-		   }
-		   else
-		   {
-		      *buf++ = res;
-		      Rxcount++;
-		      crc = updcrc16(res, crc);
-		   }
-		}
-	}
+           }
+           else
+           {
+              *buf++ = res;
+              Rxcount++;
+              crc = updcrc16(res, crc);
+           }
+        }
+    }
 
-	return -RT_ERROR;
+    return -RT_ERROR;
 }
 
 /* receive data,with 32bits CRC check */
 static rt_int16_t zrec_data32(rt_uint8_t *buf, rt_int16_t len)
 {
-	rt_int16_t c,crc_cnt;
-	rt_uint32_t crc;
-	rt_err_t res = -RT_ERROR;
-	rt_uint8_t *p,flag = 0;
+    rt_int16_t c,crc_cnt;
+    rt_uint32_t crc;
+    rt_err_t res = -RT_ERROR;
+    rt_uint8_t *p,flag = 0;
 
-	crc_cnt = 0;   crc = 0xffffffffL;  
-	Rxcount = 0;  
-	while (buf <= p+len) 
-	{
-		if ((res = zread_byte()) & ~0377)
-		{
-		    if (res == GOTCRCE || res == GOTCRCG ||
-			    res == GOTCRCQ || res == GOTCRCW)
-			{
-				  c = res;
-				  crc = updcrc32(res&0377, crc);
-				  flag = 1;	
-				  continue;	
-			}
-			else if (res == GOTCAN)  return ZCAN;
-			else if (res == TIMEOUT) return TIMEOUT;
-			else return res;
+    crc_cnt = 0;   crc = 0xffffffffL;
+    Rxcount = 0;
+    while (buf <= p+len)
+    {
+        if ((res = zread_byte()) & ~0377)
+        {
+            if (res == GOTCRCE || res == GOTCRCG ||
+                res == GOTCRCQ || res == GOTCRCW)
+            {
+                  c = res;
+                  crc = updcrc32(res&0377, crc);
+                  flag = 1;
+                  continue;
+            }
+            else if (res == GOTCAN)  return ZCAN;
+            else if (res == TIMEOUT) return TIMEOUT;
+            else return res;
 
-		}
-		else
-		{
-		   if (flag)
-		   {
-		       crc = updcrc32(res, crc); 
-			   crc_cnt++;
-			   if (crc_cnt < 4) continue;
-			   if ((crc & 0xDEBB20E3))
-			   {
+        }
+        else
+        {
+           if (flag)
+           {
+               crc = updcrc32(res, crc);
+               crc_cnt++;
+               if (crc_cnt < 4) continue;
+               if ((crc & 0xDEBB20E3))
+               {
 #ifdef ZDEBUG
-				 	 rt_kprintf("error code: CRC32 error \r\n");
+                     rt_kprintf("error code: CRC32 error \r\n");
 #endif
-					 return -RT_ERROR;
-			   } 
+                     return -RT_ERROR;
+               }
                return c;
-		   }
-		   else
-		   {
-		      *buf++ = res;
-		      Rxcount++;
-		      crc = updcrc32(res, crc);
-		   }
-		}
-	}
+           }
+           else
+           {
+              *buf++ = res;
+              Rxcount++;
+              crc = updcrc32(res, crc);
+           }
+        }
+    }
 
-	return -RT_ERROR;
+    return -RT_ERROR;
 }
 /* receive data,with RLE encoded,32bits CRC check */
 static rt_int16_t zrec_data32r(rt_uint8_t *buf, rt_int16_t len)
 {
-	rt_int16_t c,crc_cnt;
-	rt_uint32_t crc;
-	rt_err_t res = -RT_ERROR;
-	rt_uint8_t *p,flag = 0;
+    rt_int16_t c,crc_cnt;
+    rt_uint32_t crc;
+    rt_err_t res = -RT_ERROR;
+    rt_uint8_t *p,flag = 0;
 
-	crc_cnt = 0; crc = 0xffffffffL;  
-	Rxcount = 0;  
-	p = buf;
-	while (buf <= p+len) 
-	{
-		if ((res = zread_byte()) & ~0377)
-		{
-		    if (res == GOTCRCE || res == GOTCRCG ||
-			    res == GOTCRCQ || res == GOTCRCW)
-			{
-				  c = res;
-				  crc = updcrc32(res&0377, crc);
-				  flag = 1;	
-				  continue;	
-			}
-			else if (res == GOTCAN)  return ZCAN;
-			else if (res == TIMEOUT) return TIMEOUT;
-			else return res;
+    crc_cnt = 0; crc = 0xffffffffL;
+    Rxcount = 0;
+    p = buf;
+    while (buf <= p+len)
+    {
+        if ((res = zread_byte()) & ~0377)
+        {
+            if (res == GOTCRCE || res == GOTCRCG ||
+                res == GOTCRCQ || res == GOTCRCW)
+            {
+                  c = res;
+                  crc = updcrc32(res&0377, crc);
+                  flag = 1;
+                  continue;
+            }
+            else if (res == GOTCAN)  return ZCAN;
+            else if (res == TIMEOUT) return TIMEOUT;
+            else return res;
 
-		}
-		else
-		{
-		   if (flag)
-		   {
-		       crc = updcrc32(res, crc); 
-			   crc_cnt++;
-			   if (crc_cnt < 4) continue;
-			   if ((crc & 0xDEBB20E3))
-			   {
+        }
+        else
+        {
+           if (flag)
+           {
+               crc = updcrc32(res, crc);
+               crc_cnt++;
+               if (crc_cnt < 4) continue;
+               if ((crc & 0xDEBB20E3))
+               {
 #ifdef ZDEBUG
-				 	 rt_kprintf("error code: CRC32 error \r\n");
+                     rt_kprintf("error code: CRC32 error \r\n");
 #endif
-					 return -RT_ERROR;
-			   } 
+                     return -RT_ERROR;
+               }
                return c;
-		   }
-		   else
-		   {
-		       crc = updcrc32(res, crc);
-		       switch (c) 
-		       {
-		       case 0:
-			        if (res == ZRESC) 
-			        {
-			 	        c = -1;  continue;
-			        }
-			        *buf++ = res;  
-			        Rxcount++;
-			        continue;
-		       case -1:
-			        if (res >= 040 && res < 0100) 
-			        {
-				        c = res - 035; res = 040;  
-						goto spaces;
-			        }
-			        if (res == 0100) 
-			        {
-				        c = 0;
-				        *buf++ = ZRESC; 
-				        Rxcount++;
-				        continue;
-			        }
-			        c = res;  continue;
-		       default:
-			        c -= 0100;
-			        if (c < 1)
-			 	        goto end;
+           }
+           else
+           {
+               crc = updcrc32(res, crc);
+               switch (c)
+               {
+               case 0:
+                    if (res == ZRESC)
+                    {
+                        c = -1;  continue;
+                    }
+                    *buf++ = res;
+                    Rxcount++;
+                    continue;
+               case -1:
+                    if (res >= 040 && res < 0100)
+                    {
+                        c = res - 035; res = 040;
+                        goto spaces;
+                    }
+                    if (res == 0100)
+                    {
+                        c = 0;
+                        *buf++ = ZRESC;
+                        Rxcount++;
+                        continue;
+                    }
+                    c = res;  continue;
+               default:
+                    c -= 0100;
+                    if (c < 1)
+                        goto end;
 spaces:
-			        if ((buf + c) > p+len)
-				        goto end;
-			        while ( --res >= 0)
-			        {
-				        *buf++ = res;
-				        Rxcount++;
-			        }
-			        c = 0;  continue;
-		        }
-		   }
-		}	// if -else
+                    if ((buf + c) > p+len)
+                        goto end;
+                    while ( --res >= 0)
+                    {
+                        *buf++ = res;
+                        Rxcount++;
+                    }
+                    c = 0;  continue;
+                }
+           }
+        }   // if -else
 
-	}
+    }
 end:
-	return -RT_ERROR;
+    return -RT_ERROR;
 }
 rt_int16_t zget_data(rt_uint8_t *buf, rt_uint16_t len)
 {
-	rt_int16_t res = -RT_ERROR;
+    rt_int16_t res = -RT_ERROR;
 
-	if (RxCRC == 0)
-	{
-		 res = zrec_data16(buf,len);
-	}
-	else if (RxCRC == 1)
-	{
-		res = zrec_data32(buf, len);
-	}
-	else if (RxCRC == 2)
-	{
-	    res = zrec_data32r(buf, len);
-	}
+    if (RxCRC == 0)
+    {
+         res = zrec_data16(buf,len);
+    }
+    else if (RxCRC == 1)
+    {
+        res = zrec_data32(buf, len);
+    }
+    else if (RxCRC == 2)
+    {
+        res = zrec_data32r(buf, len);
+    }
 
-	return res;
+    return res;
 }
 /* get type and cmd of header, fix lenght */
 rt_int16_t zget_header(rt_uint8_t *hdr)
 {
-	rt_int16_t c,prev_char;
-	rt_uint32_t bit;
-	rt_uint16_t get_can,step_out;
+    rt_int16_t c,prev_char;
+    rt_uint32_t bit;
+    rt_uint16_t get_can,step_out;
 
-	bit = get_device_baud();	             /* get console baud rate */
-	Rxframeind = header_type = 0;
+    bit = get_device_baud();                 /* get console baud rate */
+    Rxframeind = header_type = 0;
     step_out = 0;
-	prev_char = 0xff;
-	for (;;)
-	{
-	    c = zread_line(100);
-		switch(c)
-		{
-		case 021:
-		case 0221:
-		     if (prev_char == CAN)   break;
-		     if (prev_char == ZCRCW)  goto start_again;
-		     break;
-	    case RCDO:
-		     goto end;
-		case TIMEOUT:
-			 if (prev_char == CAN) break;
-			 if (prev_char == ZCRCW)
-			 {
-				 c = -RT_ERROR; goto end;
-			 }
-			 goto end;
-		case ZCRCW:
-		     if (prev_char == CAN) goto start_again;
-			 break;
-		case CAN:
-get_can:
-		     if (++get_can > 5)
-			 {
-			     c = ZCAN; goto end;
+    prev_char = 0xff;
+    for (;;)
+    {
+        c = zread_line(100);
+        switch(c)
+        {
+        case 021:
+        case 0221:
+             if (prev_char == CAN)   break;
+             if (prev_char == ZCRCW)  goto start_again;
+             break;
+        case RCDO:
+             goto end;
+        case TIMEOUT:
+             if (prev_char == CAN) break;
+             if (prev_char == ZCRCW)
+             {
+                 c = -RT_ERROR; goto end;
              }
-			 break;
-		case ZPAD:
-		     if (prev_char == CAN)   break;
-		     if (prev_char == ZCRCW) goto start_again;
-		     step_out = 1;
-			 break;
-		default:
-		     if (prev_char == CAN)   break;
-			 if (prev_char == ZCRCW) goto start_again;
+             goto end;
+        case ZCRCW:
+             if (prev_char == CAN) goto start_again;
+             break;
+        case CAN:
+get_can:
+             if (++get_can > 5)
+             {
+                 c = ZCAN; goto end;
+             }
+             break;
+        case ZPAD:
+             if (prev_char == CAN)   break;
+             if (prev_char == ZCRCW) goto start_again;
+             step_out = 1;
+             break;
+        default:
+             if (prev_char == CAN)   break;
+             if (prev_char == ZCRCW) goto start_again;
 start_again:
-		     if (--bit == 0)
-			 {
-			     c = GCOUNT; goto end;
-			 }
-			 get_can = 0;
-			 break;
-		}
-		prev_char = c;
-		if (step_out) break;    /* exit loop */
-	}
-	step_out = get_can = 0;
-	for (;;)
-	{
-	    c = zxor_read();
-		switch(c)
-		{
-		case ZPAD:
-		     break;
-	    case RCDO:
-		case TIMEOUT:
-		     goto end;
-		case ZDLE:
-		     step_out = 1;
-			 break;
-		default:
-		     goto start_again;
-		}
-		if (step_out) break;
-	}
- 
-	Rxframeind = c = zxor_read();
-	switch (c) 
-	{
-	case ZBIN32:
-		 RxCRC = 1;  c = zget_bin_fcs(hdr); break;
-	case ZBINR32:
-		 RxCRC = 2;  c = zget_bin_fcs(hdr); break;
-	case ZBIN:
-		 RxCRC = 0;  c = zget_bin_header(hdr); break;
-	case ZHEX:
-		 RxCRC = 0;  c = zget_hex_header(hdr); break;
-	case CAN:
-		goto get_can;
-	case RCDO:
-	case TIMEOUT:
-		goto end;
-	default:
-		goto start_again;
-	}
+             if (--bit == 0)
+             {
+                 c = GCOUNT; goto end;
+             }
+             get_can = 0;
+             break;
+        }
+        prev_char = c;
+        if (step_out) break;    /* exit loop */
+    }
+    step_out = get_can = 0;
+    for (;;)
+    {
+        c = zxor_read();
+        switch(c)
+        {
+        case ZPAD:
+             break;
+        case RCDO:
+        case TIMEOUT:
+             goto end;
+        case ZDLE:
+             step_out = 1;
+             break;
+        default:
+             goto start_again;
+        }
+        if (step_out) break;
+    }
+
+    Rxframeind = c = zxor_read();
+    switch (c)
+    {
+    case ZBIN32:
+         RxCRC = 1;  c = zget_bin_fcs(hdr); break;
+    case ZBINR32:
+         RxCRC = 2;  c = zget_bin_fcs(hdr); break;
+    case ZBIN:
+         RxCRC = 0;  c = zget_bin_header(hdr); break;
+    case ZHEX:
+         RxCRC = 0;  c = zget_hex_header(hdr); break;
+    case CAN:
+        goto get_can;
+    case RCDO:
+    case TIMEOUT:
+        goto end;
+    default:
+        goto start_again;
+    }
 end:
-	return c;
+    return c;
 }
 
 /* receive a binary header */
 static rt_int16_t zget_bin_header(rt_uint8_t *hdr)
 {
-	rt_int16_t res, i;
-	rt_uint16_t crc;
+    rt_int16_t res, i;
+    rt_uint16_t crc;
 
-	if ((res = zread_byte()) & ~0377)
-		return res;
-	header_type = res;
-	crc = updcrc16(res, 0);
+    if ((res = zread_byte()) & ~0377)
+        return res;
+    header_type = res;
+    crc = updcrc16(res, 0);
 
-	for (i=0;i<4;i++) 
-	{
-		if ((res = zread_byte()) & ~0377)
-			return res;
-		crc = updcrc16(res, crc);
-		*hdr++ = res;
-	}
-	if ((res = zread_byte()) & ~0377)
-		return res;
-	crc = updcrc16(res, crc);
-	if ((res = zread_byte()) & ~0377)
-		return res;
-	crc = updcrc16(res, crc);
-	if (crc & 0xFFFF) 
-	{
-		rt_kprintf("CRC error\n");
-		return -RT_ERROR;
-	}
+    for (i=0;i<4;i++)
+    {
+        if ((res = zread_byte()) & ~0377)
+            return res;
+        crc = updcrc16(res, crc);
+        *hdr++ = res;
+    }
+    if ((res = zread_byte()) & ~0377)
+        return res;
+    crc = updcrc16(res, crc);
+    if ((res = zread_byte()) & ~0377)
+        return res;
+    crc = updcrc16(res, crc);
+    if (crc & 0xFFFF)
+    {
+        rt_kprintf("CRC error\n");
+        return -RT_ERROR;
+    }
 
-	return header_type;
+    return header_type;
 }
 
 /* receive a binary header,with 32bits FCS */
 static rt_int16_t zget_bin_fcs(rt_uint8_t *hdr)
 {
-	rt_int16_t res, i;
-	rt_uint32_t crc;
+    rt_int16_t res, i;
+    rt_uint32_t crc;
 
-	if ((res = zread_byte()) & ~0377)
-		return res;
-	header_type = res;
-	crc = 0xFFFFFFFFL; 
-	crc = updcrc32(res, crc);
+    if ((res = zread_byte()) & ~0377)
+        return res;
+    header_type = res;
+    crc = 0xFFFFFFFFL;
+    crc = updcrc32(res, crc);
 
-	for (i=0;i<4;i++)    /* 4headers */
-	{
-		if ((res = zread_byte()) & ~0377)
-			return res;
-		crc = updcrc32(res, crc);
-		*hdr++ = res;
+    for (i=0;i<4;i++)    /* 4headers */
+    {
+        if ((res = zread_byte()) & ~0377)
+            return res;
+        crc = updcrc32(res, crc);
+        *hdr++ = res;
 
-	}
-	for (i=0;i<4;i++) 	/* 4bytes crc */
-	{
-		if ((res = zread_byte()) & ~0377)
-			return res;
-		crc = updcrc32(res, crc);
+    }
+    for (i=0;i<4;i++)   /* 4bytes crc */
+    {
+        if ((res = zread_byte()) & ~0377)
+            return res;
+        crc = updcrc32(res, crc);
 
-	}
-	if (crc != 0xDEBB20E3)       
-	{
+    }
+    if (crc != 0xDEBB20E3)
+    {
 #ifdef ZDEBUG
-		rt_kprintf("CRC error\n");
+        rt_kprintf("CRC error\n");
 #endif
-		return -RT_ERROR;
-	}
+        return -RT_ERROR;
+    }
 
-	return header_type;
+    return header_type;
 }
 
 
 /* receive a hex style header (type and position) */
 rt_int16_t zget_hex_header(rt_uint8_t *hdr)
 {
-	rt_int16_t res,i;
-	rt_uint16_t crc;
+    rt_int16_t res,i;
+    rt_uint16_t crc;
 
-	if ((res = zget_hex()) < 0)
-		return res;
-	header_type = res;
-	crc = updcrc16(res, 0);
+    if ((res = zget_hex()) < 0)
+        return res;
+    header_type = res;
+    crc = updcrc16(res, 0);
 
-	for (i=0;i<4;i++) 
-	{
-		if ((res = zget_hex()) < 0)
-			return res;
-		crc = updcrc16(res, crc);
-		*hdr++ = res;
-	}
-	if ((res = zget_hex()) < 0)
-		return res;
-	crc = updcrc16(res, crc);
-	if ((res = zget_hex()) < 0)
-		return res;
-	crc = updcrc16(res, crc);
-	if (crc & 0xFFFF) 
-	{
+    for (i=0;i<4;i++)
+    {
+        if ((res = zget_hex()) < 0)
+            return res;
+        crc = updcrc16(res, crc);
+        *hdr++ = res;
+    }
+    if ((res = zget_hex()) < 0)
+        return res;
+    crc = updcrc16(res, crc);
+    if ((res = zget_hex()) < 0)
+        return res;
+    crc = updcrc16(res, crc);
+    if (crc & 0xFFFF)
+    {
 #ifdef ZDEBUG
-		rt_kprintf("error code : CRC error\r\n"); 
+        rt_kprintf("error code : CRC error\r\n");
 #endif
-		return -RT_ERROR;
-	}
-	res = zread_line(100);
-	if (res < 0)
-		return res;
-	res = zread_line(100);
-	if (res < 0)
-		return res;
+        return -RT_ERROR;
+    }
+    res = zread_line(100);
+    if (res < 0)
+        return res;
+    res = zread_line(100);
+    if (res < 0)
+        return res;
 
-	return header_type;
+    return header_type;
 }
 
 /* convert to ascii */
 static void zsend_ascii(rt_uint8_t c)
 {
-	const char hex[] = "0123456789abcdef";
+    const char hex[] = "0123456789abcdef";
 
-	zsend_line(hex[(c&0xF0)>>4]);
-	zsend_line(hex[(c)&0xF]);
+    zsend_line(hex[(c&0xF0)>>4]);
+    zsend_line(hex[(c)&0xF]);
 
-	return;
+    return;
 }
 
 /*
@@ -723,54 +723,54 @@ static void zsend_ascii(rt_uint8_t c)
  */
 void zsend_zdle_char(rt_uint16_t ch)
 {
-    rt_uint16_t	res;
+    rt_uint16_t res;
 
-	res = ch & 0377;
-	switch (res) 
-	{
-	case 0377:
-		zsend_byte(res);
-		break;
-	case ZDLE:
-		zsend_byte(ZDLE);  
-		res ^= 0100;
-		zsend_byte(res);
-		break;
-	case 021: 
-	case 023:
-	case 0221: 
-	case 0223:
-		zsend_byte(ZDLE);  
-		res ^= 0100;  
-		zsend_byte(res);
-		break;
-	default:
-		zsend_byte(res);
-	}
+    res = ch & 0377;
+    switch (res)
+    {
+    case 0377:
+        zsend_byte(res);
+        break;
+    case ZDLE:
+        zsend_byte(ZDLE);
+        res ^= 0100;
+        zsend_byte(res);
+        break;
+    case 021:
+    case 023:
+    case 0221:
+    case 0223:
+        zsend_byte(ZDLE);
+        res ^= 0100;
+        zsend_byte(res);
+        break;
+    default:
+        zsend_byte(res);
+    }
 }
 
 /* decode two lower case hex digits into an 8 bit byte value */
 static rt_int16_t zget_hex(void)
 {
-	rt_int16_t res,n;
+    rt_int16_t res,n;
 
-	if ((res = zxor_read()) < 0)
-		return res;
-	n = res - '0';
-	if (n > 9)
-		n -= ('a' - ':');
-	if (n & ~0x0f)
-		return -RT_ERROR;
-	if ((res = zxor_read()) < 0)
-		return res;
-	res -= '0';
-	if (res > 9)
-		res -= ('a' - ':');
-	if (res & ~0x0f)
-		return -RT_ERROR;
-	res += (n<<4);
+    if ((res = zxor_read()) < 0)
+        return res;
+    n = res - '0';
+    if (n > 9)
+        n -= ('a' - ':');
+    if (n & ~0x0f)
+        return -RT_ERROR;
+    if ((res = zxor_read()) < 0)
+        return res;
+    res -= '0';
+    if (res > 9)
+        res -= ('a' - ':');
+    if (res & ~0x0f)
+        return -RT_ERROR;
+    res += (n<<4);
 
-	return res;
+    return res;
 }
 
 
@@ -780,58 +780,58 @@ static rt_int16_t zget_hex(void)
  */
 rt_int16_t zread_byte(void)
 {
-	register int res;
+    register int res;
 
 again:
-	/* Quick check for non control characters */
-	if ((res = zread_line(100)) & 0140)
-		return res;
-	switch (res) 
-	{
-	case ZDLE:
-		break;
-	case 023:
-	case 0223:
-	case 021:
-	case 0221:
-		goto again;
-	default:
-		return res;
-	}
+    /* Quick check for non control characters */
+    if ((res = zread_line(100)) & 0140)
+        return res;
+    switch (res)
+    {
+    case ZDLE:
+        break;
+    case 023:
+    case 0223:
+    case 021:
+    case 0221:
+        goto again;
+    default:
+        return res;
+    }
 again2:
-	if ((res = zread_line(100)) < 0)
-		return res;
-	if (res == CAN && (res = zread_line(100)) < 0)
-		return res;
-	if (res == CAN && (res = zread_line(100)) < 0)
-		return res;
-	if (res == CAN && (res = zread_line(100)) < 0)
-		return res;
-	switch (res) 
-	{
-	case CAN:
-		 return GOTCAN;
-	case ZCRCE:
-	case ZCRCG:
-	case ZCRCQ:
-	case ZCRCW:
-		 return (res | GOTOR);
-	case ZRUB0:
-	 	 return 0177;
-	case ZRUB1:
-		 return 0377;
-	case 023:
-	case 0223:
-	case 021:
-	case 0221:
-		 goto again2;
-	default:
-		 if ((res & 0140) ==  0100)
-			return (res ^ 0100);
-		 break;
-	}
+    if ((res = zread_line(100)) < 0)
+        return res;
+    if (res == CAN && (res = zread_line(100)) < 0)
+        return res;
+    if (res == CAN && (res = zread_line(100)) < 0)
+        return res;
+    if (res == CAN && (res = zread_line(100)) < 0)
+        return res;
+    switch (res)
+    {
+    case CAN:
+         return GOTCAN;
+    case ZCRCE:
+    case ZCRCG:
+    case ZCRCQ:
+    case ZCRCW:
+         return (res | GOTOR);
+    case ZRUB0:
+         return 0177;
+    case ZRUB1:
+         return 0377;
+    case 023:
+    case 0223:
+    case 021:
+    case 0221:
+         goto again2;
+    default:
+         if ((res & 0140) ==  0100)
+            return (res ^ 0100);
+         break;
+    }
 
-	return -RT_ERROR;
+    return -RT_ERROR;
 }
 
 /*
@@ -840,46 +840,46 @@ again2:
  */
 rt_int16_t zxor_read(void)
 {
-	rt_int16_t res;
+    rt_int16_t res;
 
-	for (;;) 
-	{
-		if ((res = zread_line(100)) < 0)
-			return res;
-		switch (res &= 0177) {
-		case XON:
-		case XOFF:
-			continue;		
-		case '\r':
-		case '\n':
-		case ZDLE:
-		default:
-			return res;
-		}
-	}
+    for (;;)
+    {
+        if ((res = zread_line(100)) < 0)
+            return res;
+        switch (res &= 0177) {
+        case XON:
+        case XOFF:
+            continue;
+        case '\r':
+        case '\n':
+        case ZDLE:
+        default:
+            return res;
+        }
+    }
 
 }
 
 /* put file posistion into the header*/
 void zput_pos(rt_uint32_t pos)
 {
-	tx_header[ZP0] = pos;
-	tx_header[ZP1] = pos>>8;
-	tx_header[ZP2] = pos>>16;
-	tx_header[ZP3] = pos>>24;
+    tx_header[ZP0] = pos;
+    tx_header[ZP1] = pos>>8;
+    tx_header[ZP2] = pos>>16;
+    tx_header[ZP3] = pos>>24;
 
-	return;
+    return;
 }
 
 /* Recover a long integer from a header */
 void zget_pos(rt_uint32_t pos)
 {
-	Rxpos = (rx_header[ZP3] & 0377);
-	Rxpos = (Rxpos << 8) | (rx_header[ZP2] & 0377);
-	Rxpos = (Rxpos << 8) | (rx_header[ZP1] & 0377);
-	Rxpos = (Rxpos << 8) | (rx_header[ZP0] & 0377);
+    Rxpos = (rx_header[ZP3] & 0377);
+    Rxpos = (Rxpos << 8) | (rx_header[ZP2] & 0377);
+    Rxpos = (Rxpos << 8) | (rx_header[ZP1] & 0377);
+    Rxpos = (Rxpos << 8) | (rx_header[ZP0] & 0377);
 
-	return;
+    return;
 }
 
 /* end of zcore.c */
diff --git a/components/utilities/zmodem/zdef.h b/components/utilities/zmodem/zdef.h
index 3568bdfd96..cfb9784f30 100644
--- a/components/utilities/zmodem/zdef.h
+++ b/components/utilities/zmodem/zdef.h
@@ -3,133 +3,133 @@
 
 #include <rtthread.h>
 #include "crc.h"
-#define ZPAD      '*'	/* 052 padding character begins frames */
-#define ZDLE      030	/* ctrl-X ZMODEM escape - `ala BISYNC DLE */
-#define ZDLEE     (ZDLE^0100)	/* escaped ZDLE as transmitted */
-#define ZBIN      'A'	/* binary frame indicator (CRC-16) */
-#define ZHEX      'B'	/* hex frame indicator */
-#define ZBIN32    'C'	/* binary frame with 32 bit FCS */
-#define ZBINR32   'D'	/* RLE packed Binary frame with 32 bit FCS */
-#define ZVBIN     'a'	/* binary frame indicator (CRC-16) */
-#define ZVHEX     'b'	/* hex frame indicator */
-#define ZVBIN32   'c'	/* binary frame with 32 bit FCS */
-#define ZVBINR32  'd'	/* RLE packed Binary frame with 32 bit FCS */
-#define ZRESC	  0176	/* RLE flag/escape character */
+#define ZPAD      '*'   /* 052 padding character begins frames */
+#define ZDLE      030   /* ctrl-X ZMODEM escape - `ala BISYNC DLE */
+#define ZDLEE     (ZDLE^0100)   /* escaped ZDLE as transmitted */
+#define ZBIN      'A'   /* binary frame indicator (CRC-16) */
+#define ZHEX      'B'   /* hex frame indicator */
+#define ZBIN32    'C'   /* binary frame with 32 bit FCS */
+#define ZBINR32   'D'   /* RLE packed Binary frame with 32 bit FCS */
+#define ZVBIN     'a'   /* binary frame indicator (CRC-16) */
+#define ZVHEX     'b'   /* hex frame indicator */
+#define ZVBIN32   'c'   /* binary frame with 32 bit FCS */
+#define ZVBINR32  'd'   /* RLE packed Binary frame with 32 bit FCS */
+#define ZRESC     0176  /* RLE flag/escape character */
 
 
 /* Frame types */
-#define ZRQINIT	  0	    /* request receive init */
+#define ZRQINIT   0     /* request receive init */
 #define ZRINIT    1     /* receive init */
-#define ZSINIT    2	    /* send init sequence (optional) */
-#define ZACK      3	    /* ACK to above */
-#define ZFILE     4	    /* file name from sender */
-#define ZSKIP     5	    /* ro sender: skip this file */
-#define ZNAK      6	    /* last packet was garbled */
-#define ZABORT    7	    /* abort batch transfers */
-#define ZFIN      8	    /* finish session */
-#define ZRPOS     9	    /* resume data trans at this position */
+#define ZSINIT    2     /* send init sequence (optional) */
+#define ZACK      3     /* ACK to above */
+#define ZFILE     4     /* file name from sender */
+#define ZSKIP     5     /* ro sender: skip this file */
+#define ZNAK      6     /* last packet was garbled */
+#define ZABORT    7     /* abort batch transfers */
+#define ZFIN      8     /* finish session */
+#define ZRPOS     9     /* resume data trans at this position */
 #define ZDATA     10    /* data packet(s) follow */
 #define ZEOF      11    /* end of file */
 #define ZFERR     12    /* fatal Read or Write error Detected */
 #define ZCRC      13    /* request for file CRC and response */
 #define ZCHALLENGE 14   /* receiver's Challenge */
-#define ZCOMPL    15	/* request is complete */
-#define ZCAN      16	/* other end canned session with CAN*5 */
-#define ZFREECNT  17	/* request for free bytes on filesystem */
-#define ZCOMMAND  18	/* command from sending program */
+#define ZCOMPL    15    /* request is complete */
+#define ZCAN      16    /* other end canned session with CAN*5 */
+#define ZFREECNT  17    /* request for free bytes on filesystem */
+#define ZCOMMAND  18    /* command from sending program */
 
 /* ZDLE sequfences */
-#define ZCRCE     'h'	/* CRC next, frame ends, header packet follows */
-#define ZCRCG     'i'	/* CRC next, frame continues nonstop */
-#define ZCRCQ     'j'	/* CRC next, frame continues, ZACK expected */
-#define ZCRCW     'k'	/* CRC next, ZACK expected, end of frame */
-#define ZRUB0     'l'	/* translate to rubout 0177 */
-#define ZRUB1     'm'	/* translate to rubout 0377 */
+#define ZCRCE     'h'   /* CRC next, frame ends, header packet follows */
+#define ZCRCG     'i'   /* CRC next, frame continues nonstop */
+#define ZCRCQ     'j'   /* CRC next, frame continues, ZACK expected */
+#define ZCRCW     'k'   /* CRC next, ZACK expected, end of frame */
+#define ZRUB0     'l'   /* translate to rubout 0177 */
+#define ZRUB1     'm'   /* translate to rubout 0377 */
 
 /* zdlread return values (internal) */
 /* -1 is general error, -2 is timeout */
 #define GOTOR     0400
-#define GOTCRCE   (ZCRCE|GOTOR)	/* ZDLE-ZCRCE received */
-#define GOTCRCG   (ZCRCG|GOTOR)	/* ZDLE-ZCRCG received */
-#define GOTCRCQ   (ZCRCQ|GOTOR)	/* ZDLE-ZCRCQ received */
-#define GOTCRCW   (ZCRCW|GOTOR)	/* ZDLE-ZCRCW received */
-#define GOTCAN	  (GOTOR|030)	/* CAN*5 seen */
+#define GOTCRCE   (ZCRCE|GOTOR) /* ZDLE-ZCRCE received */
+#define GOTCRCG   (ZCRCG|GOTOR) /* ZDLE-ZCRCG received */
+#define GOTCRCQ   (ZCRCQ|GOTOR) /* ZDLE-ZCRCQ received */
+#define GOTCRCW   (ZCRCW|GOTOR) /* ZDLE-ZCRCW received */
+#define GOTCAN    (GOTOR|030)   /* CAN*5 seen */
 
 /* Byte positions within header array */
-#define ZF0	      3	    /* first flags byte */
-#define ZF1	      2
-#define ZF2	      1
-#define ZF3	      0
-#define ZP0	      0	    /* low order 8 bits of position */
-#define ZP1	      1
-#define ZP2	      2
-#define ZP3	      3	    /* high order 8 bits of file position */
+#define ZF0       3     /* first flags byte */
+#define ZF1       2
+#define ZF2       1
+#define ZF3       0
+#define ZP0       0     /* low order 8 bits of position */
+#define ZP1       1
+#define ZP2       2
+#define ZP3       3     /* high order 8 bits of file position */
 
 /* parameters for ZRINIT header */
-#define ZRPXWN	  8	    /* 9th byte in header contains window size/256 */
-#define ZRPXQQ	  9	    /* 10th to 14th bytes contain quote mask */
+#define ZRPXWN    8     /* 9th byte in header contains window size/256 */
+#define ZRPXQQ    9     /* 10th to 14th bytes contain quote mask */
 /* bit Masks for ZRINIT flags byte ZF0 */
-#define CANFDX	  0x01	/* rx can send and receive true FDX */
-#define CANOVIO	  0x02	/* rx can receive data during disk I/O */
-#define CANBRK	  0x04	/* rx can send a break signal */
-#define CANRLE	  0x10	/* receiver can decode RLE */
-#define CANLZW	  0x20	/* receiver can uncompress */
-#define CANFC32	  0x28	/* receiver can use 32 bit Frame Check */
-#define ESCCTL    0x64	/* receiver expects ctl chars to be escaped */
-#define ESC8      0xc8	/* receiver expects 8th bit to be escaped */
+#define CANFDX    0x01  /* rx can send and receive true FDX */
+#define CANOVIO   0x02  /* rx can receive data during disk I/O */
+#define CANBRK    0x04  /* rx can send a break signal */
+#define CANRLE    0x10  /* receiver can decode RLE */
+#define CANLZW    0x20  /* receiver can uncompress */
+#define CANFC32   0x28  /* receiver can use 32 bit Frame Check */
+#define ESCCTL    0x64  /* receiver expects ctl chars to be escaped */
+#define ESC8      0xc8  /* receiver expects 8th bit to be escaped */
 
 /* bit Masks for ZRINIT flags byte ZF1 */
-#define CANVHDR	  01	/* variable headers OK */
-#define ZRRQWN	  8	    /* receiver specified window size in ZRPXWN */
-#define ZRRQQQ	  16	/* additional control chars to quote in ZRPXQQ	*/
-#define ZRQNVH	  (ZRRQWN|ZRRQQQ)	/* variable len hdr reqd to access info */
+#define CANVHDR   01    /* variable headers OK */
+#define ZRRQWN    8     /* receiver specified window size in ZRPXWN */
+#define ZRRQQQ    16    /* additional control chars to quote in ZRPXQQ  */
+#define ZRQNVH    (ZRRQWN|ZRRQQQ)   /* variable len hdr reqd to access info */
 
 /* Parameters for ZSINIT frame */
-#define ZATTNLEN  32	/* max length of attention string */
-#define ALTCOFF   ZF1	/* offset to alternate canit string, 0 if not used */
+#define ZATTNLEN  32    /* max length of attention string */
+#define ALTCOFF   ZF1   /* offset to alternate canit string, 0 if not used */
 
 /* Parameters for ZFILE frame */
 /* Conversion options one of these in ZF0 */
-#define ZCBIN	  1	   /* binary transfer - inhibit conversion */
-#define ZCNL	  2	   /* convert NL to local end of line convention */
-#define ZCRESUM	  3	   /* resume interrupted file transfer */
+#define ZCBIN     1    /* binary transfer - inhibit conversion */
+#define ZCNL      2    /* convert NL to local end of line convention */
+#define ZCRESUM   3    /* resume interrupted file transfer */
 /* management include options, one of these ored in ZF1 */
 #define ZMSKNOLOC 0200 /* skip file if not present at rx */
 /* management options, one of these ored in ZF1 */
-#define ZMMASK	  037  /* mask for the choices below */
-#define ZMNEWL	  1	   /* transfer if source newer or longer */
-#define ZMCRC	  2	   /* transfer if different file CRC or length */
-#define ZMAPND	  3	   /* append contents to existing file (if any) */
-#define ZMCLOB	  4	   /* replace existing file */
-#define ZMNEW	  5	   /* transfer if source newer */
+#define ZMMASK    037  /* mask for the choices below */
+#define ZMNEWL    1    /* transfer if source newer or longer */
+#define ZMCRC     2    /* transfer if different file CRC or length */
+#define ZMAPND    3    /* append contents to existing file (if any) */
+#define ZMCLOB    4    /* replace existing file */
+#define ZMNEW     5    /* transfer if source newer */
 /* number 5 is alive ... */
-#define ZMDIFF	  6	   /* transfer if dates or lengths different */
-#define ZMPROT	  7	   /* protect destination file */
-#define ZMCHNG	  8	   /* change filename if destination exists */
+#define ZMDIFF    6    /* transfer if dates or lengths different */
+#define ZMPROT    7    /* protect destination file */
+#define ZMCHNG    8    /* change filename if destination exists */
 /* transport options, one of these in ZF2 */
-#define ZTLZW	  1	   /* lempel-Ziv compression */
-#define ZTRLE	  3	   /* run Length encoding */
+#define ZTLZW     1    /* lempel-Ziv compression */
+#define ZTRLE     3    /* run Length encoding */
 /* extended options for ZF3, bit encoded */
-#define ZXSPARS	  64   /* encoding for sparse file operations */
+#define ZXSPARS   64   /* encoding for sparse file operations */
 #define ZCANVHDR  01   /* variable headers OK */
 /* receiver window size override */
-#define ZRWOVR    4	   /* byte position for receive window override/256 */
+#define ZRWOVR    4    /* byte position for receive window override/256 */
 
 /* parameters for ZCOMMAND frame ZF0 (otherwise 0) */
-#define ZCACK1	  1	   /* acknowledge, then do command */
-extern char Attn[ZATTNLEN+1];	/* Attention string rx sends to tx on err */
+#define ZCACK1    1    /* acknowledge, then do command */
+extern char Attn[ZATTNLEN+1];   /* Attention string rx sends to tx on err */
 
 /* globals used by ZMODEM functions */
 extern rt_uint8_t  Rxframeind;     /* ZBIN ZBIN32, or ZHEX type of frame */
-extern char header_type;	       /* type of header received */
+extern char header_type;           /* type of header received */
 extern rt_uint8_t  rx_header[4];   /* received header */
 extern rt_uint8_t  tx_header[4];   /* transmitted header */
-extern rt_uint8_t  Txfcs32;		   /* TRUE means send binary frames with 32 bit FCS */
-extern rt_uint16_t Rxcount;	       /* count of data bytes received */
+extern rt_uint8_t  Txfcs32;        /* TRUE means send binary frames with 32 bit FCS */
+extern rt_uint16_t Rxcount;        /* count of data bytes received */
 extern rt_uint16_t Rxtimeout;      /* tenths of seconds to wait for something */
-extern rt_uint32_t Rxpos;	       /* received file position */
-extern rt_uint32_t Txpos;	       /* transmitted file position */
-extern rt_uint8_t  Txfcs32;	       /* TURE means send binary frames with 32 bit FCS */
+extern rt_uint32_t Rxpos;          /* received file position */
+extern rt_uint32_t Txpos;          /* transmitted file position */
+extern rt_uint8_t  Txfcs32;        /* TURE means send binary frames with 32 bit FCS */
 
 /* ward Christensen / CP/M parameters - Don't change these! */
 #define ENQ     005
@@ -141,34 +141,34 @@ extern rt_uint8_t  Txfcs32;	       /* TURE means send binary frames with 32 bit
 #define ETX     3
 #define SYN     026
 #define ESC     033
-#define WANTG   0107	/* send G not NAK to get nonstop batch xmsn */
+#define WANTG   0107    /* send G not NAK to get nonstop batch xmsn */
 #define EOT     4
 #define ACK     6
 #define NAK     025
 #define CPMEOF  032
-#define WANTCRC 0103	/* send C not NAK to get crc not checksum */
+#define WANTCRC 0103    /* send C not NAK to get crc not checksum */
 #define TIMEOUT (-2)
 #define RCDO    (-3)
 #define GCOUNT  (-4)
 #define ERRORMAX 5
 #define RETRYMAX 5
 #define WCEOT   (-10)
- 
- 
+
+
 
 
 
 #define BITRATE 115200
 #define TX_BUFFER_SIZE  1024
-#define RX_BUFFER_SIZE  1024	  /* sender or receiver's max buffer size */
-extern char ZF0_CMD;	          /* local ZMODEM file conversion request */
-extern char ZF1_CMD;	          /* local ZMODEM file management request */
-extern char ZF2_CMD;	          /* local ZMODEM file management request */
-extern char ZF3_CMD;	          /* local ZMODEM file management request */
+#define RX_BUFFER_SIZE  1024      /* sender or receiver's max buffer size */
+extern char ZF0_CMD;              /* local ZMODEM file conversion request */
+extern char ZF1_CMD;              /* local ZMODEM file management request */
+extern char ZF2_CMD;              /* local ZMODEM file management request */
+extern char ZF3_CMD;              /* local ZMODEM file management request */
 extern rt_uint32_t Baudrate ;
 extern rt_uint32_t Left_bytes;
 extern rt_uint32_t Left_sizes;
- 
+
 
 struct zmodemf
 {
@@ -179,18 +179,18 @@ extern struct zmodemf zmodem;
 
 struct zfile
 {
-	char *fname;
-	rt_int32_t   fd;
-	rt_uint32_t  ctime;
+    char *fname;
+    rt_int32_t   fd;
+    rt_uint32_t  ctime;
     rt_uint32_t  mode;
-	rt_uint32_t  bytes_total;
-	rt_uint32_t  bytes_sent;
-	rt_uint32_t  bytes_received;
-	rt_uint32_t  file_end;
-	
+    rt_uint32_t  bytes_total;
+    rt_uint32_t  bytes_sent;
+    rt_uint32_t  bytes_received;
+    rt_uint32_t  file_end;
+
 };
 extern struct finsh_shell* shell;
- 
+
 #define ZDEBUG 0
 /* sz.c */
 extern void zs_start(char *path);
@@ -213,5 +213,5 @@ extern void zsend_line(rt_uint16_t c);
 extern rt_int16_t zread_line(rt_uint16_t timeout);
 extern void zsend_break(char *cmd);
 extern void zsend_can(void);
- 
+
 #endif  /* __ZDEF_H__ */
diff --git a/components/utilities/zmodem/zdevice.c b/components/utilities/zmodem/zdevice.c
index 1562cc5f5c..3a144e79de 100644
--- a/components/utilities/zmodem/zdevice.c
+++ b/components/utilities/zmodem/zdevice.c
@@ -3,7 +3,7 @@
  * the implemention of zmodem protocol.
  * Change Logs:
  * Date           Author       Notes
- * 2011-03-29     itspy       
+ * 2011-03-29     itspy
  */
 
 #include <rtthread.h>
@@ -15,11 +15,11 @@
 #include <dfs_posix.h>
 #include "zdef.h"
 
-										  
-rt_uint32_t Line_left  = 0;		     /* left number of data in the read line buffer*/ 
-rt_uint32_t Left_sizes = 0;			 /* left file sizes */
-rt_uint32_t Baudrate   = BITRATE; 	 /* console baudrate */
- 
+
+rt_uint32_t Line_left  = 0;          /* left number of data in the read line buffer*/
+rt_uint32_t Left_sizes = 0;          /* left file sizes */
+rt_uint32_t Baudrate   = BITRATE;    /* console baudrate */
+
 
 
 rt_uint32_t get_device_baud(void)
@@ -34,7 +34,7 @@ rt_uint32_t get_sys_time(void)
 
 void zsend_byte(rt_uint16_t ch)
 {
-    rt_device_write(zmodem.device, 0, &ch,1);  
+    rt_device_write(zmodem.device, 0, &ch,1);
 
     return;
 }
@@ -43,38 +43,38 @@ void zsend_line(rt_uint16_t c)
 {
     rt_uint16_t ch;
 
-	ch = (c & 0377);
-    rt_device_write(zmodem.device, 0, &ch, 1);   
+    ch = (c & 0377);
+    rt_device_write(zmodem.device, 0, &ch, 1);
 
     return;
 }
 
 rt_int16_t zread_line(rt_uint16_t timeout)
 {
-	char *str;	 
-	static char buf[10];
+    char *str;
+    static char buf[10];
 
-	if (Line_left > 0)
-	{
-	    Line_left -= 1;
-		return (*str++ & 0377);
-	}
-	Line_left = 0;
-	timeout/=5;
-	while (1)
-	{
-     	Line_left = rt_device_read(shell->device, 0, buf, 1);
-		if (Line_left)
-		{
-		     Line_left = Line_left;
-		     str = buf;
-			 break;
-		}
-	}
-	if (Line_left < 1) return TIMEOUT;
-	Line_left -=1;
+    if (Line_left > 0)
+    {
+        Line_left -= 1;
+        return (*str++ & 0377);
+    }
+    Line_left = 0;
+    timeout/=5;
+    while (1)
+    {
+        Line_left = rt_device_read(shell->device, 0, buf, 1);
+        if (Line_left)
+        {
+             Line_left = Line_left;
+             str = buf;
+             break;
+        }
+    }
+    if (Line_left < 1) return TIMEOUT;
+    Line_left -=1;
 
-	return (*str++ & 0377);
+    return (*str++ & 0377);
 }
 
 /*
@@ -83,32 +83,32 @@ rt_int16_t zread_line(rt_uint16_t timeout)
  */
 void zsend_break(char *cmd)
 {
-   
-	while (*cmd++) 
-	{
-		switch (*cmd) 
-		{
-		case '\336':
-			 continue;
-		case '\335':
-		     rt_thread_delay(RT_TICK_PER_SECOND);
-			 continue;
-		default:
-			 zsend_line(*cmd);
-			 break;
-		}
-	}
+
+    while (*cmd++)
+    {
+        switch (*cmd)
+        {
+        case '\336':
+             continue;
+        case '\335':
+             rt_thread_delay(RT_TICK_PER_SECOND);
+             continue;
+        default:
+             zsend_line(*cmd);
+             break;
+        }
+    }
 }
 /* send cancel string to get the other end to shut up */
 void zsend_can(void)
 {
-	static char cmd[] = {24,24,24,24,24,24,24,24,24,24,0};
+    static char cmd[] = {24,24,24,24,24,24,24,24,24,24,0};
 
-	zsend_break(cmd);
-	rt_kprintf("\x0d");
-	Line_left=0;	       /* clear Line_left */
+    zsend_break(cmd);
+    rt_kprintf("\x0d");
+    Line_left=0;           /* clear Line_left */
 
-	return;
+    return;
 }
 
 /* end of zdevice.c */
diff --git a/components/utilities/zmodem/zstart.c b/components/utilities/zmodem/zstart.c
index e5a36ca7ab..5c44ee86a7 100644
--- a/components/utilities/zmodem/zstart.c
+++ b/components/utilities/zmodem/zstart.c
@@ -3,7 +3,7 @@
  * the implemention of zmodem protocol.
  * Change Logs:
  * Date           Author       Notes
- * 2011-03-29     itspy       
+ * 2011-03-29     itspy
  */
 
 #include <rtthread.h>
@@ -27,43 +27,43 @@ rt_err_t zmodem_rx_ind(rt_device_t dev, rt_size_t size)
 
 void finsh_rz(void *parameter)
 {
-	char *path;
+    char *path;
     rt_err_t (*rx_indicate)(rt_device_t dev, rt_size_t size);
-    rt_uint8_t flag;	
+    rt_uint8_t flag;
 
-	flag = RT_DEVICE_FLAG_STREAM;
+    flag = RT_DEVICE_FLAG_STREAM;
     zmodem.device->flag &=(~flag);
     rt_sem_init(&(zmodem.zsem), "zsem", 0, 0);
-	path = rt_thread_self()->parameter;
-    /* save old rx_indicate	*/
+    path = rt_thread_self()->parameter;
+    /* save old rx_indicate */
     rx_indicate = zmodem.device->rx_indicate;
     /* set new rx_indicate */
     rt_device_set_rx_indicate(zmodem.device, RT_NULL);
-	/* start receive remote files */
+    /* start receive remote files */
     zr_start(path);
-	zmodem.device->flag |=flag;
-    /* recovery old rx_indicate	*/
+    zmodem.device->flag |=flag;
+    /* recovery old rx_indicate */
     rt_device_set_rx_indicate(zmodem.device, rx_indicate);
     /* finsh>> */
     rt_kprintf(FINSH_PROMPT);
 }
 void finsh_sz(void *parameter)
 {
-	char *path;
+    char *path;
     rt_err_t (*rx_indicate)(rt_device_t dev, rt_size_t size);
-    rt_uint8_t flag;	
+    rt_uint8_t flag;
 
-	flag = RT_DEVICE_FLAG_STREAM;
+    flag = RT_DEVICE_FLAG_STREAM;
     zmodem.device->flag &=(~flag);
     rt_sem_init(&(zmodem.zsem), "zsem", 0, 0);
-	path = rt_thread_self()->parameter;
-	/* save old rx_indicate	*/
+    path = rt_thread_self()->parameter;
+    /* save old rx_indicate */
     rx_indicate = zmodem.device->rx_indicate;
-	/* set new rx_indicate */
+    /* set new rx_indicate */
     rt_device_set_rx_indicate(zmodem.device, zmodem_rx_ind);
-	zs_start(path);
-	zmodem.device->flag |=flag;
-    /* recovery old rx_indicate	*/
+    zs_start(path);
+    zmodem.device->flag |=flag;
+    /* recovery old rx_indicate */
     rt_device_set_rx_indicate(zmodem.device, rx_indicate);
     /* finsh>> */
     rt_kprintf(FINSH_PROMPT);
diff --git a/components/vbus/prio_queue.c b/components/vbus/prio_queue.c
index bca3cdcd9a..8c3c648e73 100644
--- a/components/vbus/prio_queue.c
+++ b/components/vbus/prio_queue.c
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vbus/prio_queue.h b/components/vbus/prio_queue.h
index 7358ffdb23..0af36d0ea9 100644
--- a/components/vbus/prio_queue.h
+++ b/components/vbus/prio_queue.h
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vbus/share_hdr/vbus_api.h b/components/vbus/share_hdr/vbus_api.h
index db6cb7b72c..a643822a9c 100644
--- a/components/vbus/share_hdr/vbus_api.h
+++ b/components/vbus/share_hdr/vbus_api.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/vbus/vbus.c b/components/vbus/vbus.c
index 8add15d9db..2adaad9449 100644
--- a/components/vbus/vbus.c
+++ b/components/vbus/vbus.c
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
@@ -899,8 +899,8 @@ int rt_vbus_request_chn(struct rt_vbus_request *req,
                         int timeout)
 {
     int i, chnr, err;
-	size_t plen = rt_strlen(req->name) + 2;
-	unsigned char *pbuf;
+    size_t plen = rt_strlen(req->name) + 2;
+    unsigned char *pbuf;
     rt_ubase_t lvl;
 
     lvl = rt_hw_interrupt_disable();
@@ -930,8 +930,8 @@ int rt_vbus_request_chn(struct rt_vbus_request *req,
         goto _waitforcmp;
     }
 
-	pbuf = rt_malloc(plen);
-	if (!pbuf)
+    pbuf = rt_malloc(plen);
+    if (!pbuf)
     {
         rt_hw_interrupt_enable(lvl);
         return -RT_ENOMEM;
@@ -944,7 +944,7 @@ int rt_vbus_request_chn(struct rt_vbus_request *req,
     rt_memcpy(pbuf+1, req->name, plen-1);
     vbus_verbose("%s --> remote\n", dump_cmd_pkt(pbuf, plen));
 
-	err = _chn0_post(pbuf, plen, RT_WAITING_FOREVER);
+    err = _chn0_post(pbuf, plen, RT_WAITING_FOREVER);
     rt_free(pbuf);
 
 _waitforcmp:
diff --git a/components/vbus/vbus.h b/components/vbus/vbus.h
index ea271d8e79..661e310e6d 100644
--- a/components/vbus/vbus.h
+++ b/components/vbus/vbus.h
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
@@ -51,14 +51,14 @@ struct rt_vbus_data {
 };
 
 struct rt_vbus_wm_cfg {
-	unsigned int low, high;
+    unsigned int low, high;
 };
 
 struct rt_vbus_request {
-	unsigned char prio;
-	const char *name;
-	int is_server;
-	struct rt_vbus_wm_cfg recv_wm, post_wm;
+    unsigned char prio;
+    const char *name;
+    int is_server;
+    struct rt_vbus_wm_cfg recv_wm, post_wm;
 };
 
 /** Request a channel.
diff --git a/components/vbus/vbus_chnx.c b/components/vbus/vbus_chnx.c
index d064d6f1f2..1014369cc2 100644
--- a/components/vbus/vbus_chnx.c
+++ b/components/vbus/vbus_chnx.c
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vbus/watermark_queue.c b/components/vbus/watermark_queue.c
index e56790d286..15c42d8080 100644
--- a/components/vbus/watermark_queue.c
+++ b/components/vbus/watermark_queue.c
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vbus/watermark_queue.h b/components/vbus/watermark_queue.h
index 0ecc52d8ff..484d981ed1 100644
--- a/components/vbus/watermark_queue.h
+++ b/components/vbus/watermark_queue.h
@@ -1,6 +1,6 @@
 /*
- * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
- * 
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vmm/vmm.c b/components/vmm/vmm.c
index 2bca67376c..26aee1e3cd 100644
--- a/components/vmm/vmm.c
+++ b/components/vmm/vmm.c
@@ -1,9 +1,9 @@
 /*
  *  VMM startup file.
  *
- * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
  * All rights reserved
- * 
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vmm/vmm.h b/components/vmm/vmm.h
index 17bba8439b..ef7d9a1667 100644
--- a/components/vmm/vmm.h
+++ b/components/vmm/vmm.h
@@ -1,9 +1,9 @@
 /*
  *  VMM startup file.
  *
- * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
  * All rights reserved
- * 
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vmm/vmm_context.c b/components/vmm/vmm_context.c
index 2e3b95f825..bf8f2a058e 100644
--- a/components/vmm/vmm_context.c
+++ b/components/vmm/vmm_context.c
@@ -1,7 +1,7 @@
 /*
- * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
  * All rights reserved
- * 
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vmm/vmm_context.h b/components/vmm/vmm_context.h
index 019b681459..88cd27b8f1 100644
--- a/components/vmm/vmm_context.h
+++ b/components/vmm/vmm_context.h
@@ -1,7 +1,7 @@
 /*
- * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
  * All rights reserved
- * 
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vmm/vmm_iomap.c b/components/vmm/vmm_iomap.c
index 55bd1ac36e..582dcb6945 100644
--- a/components/vmm/vmm_iomap.c
+++ b/components/vmm/vmm_iomap.c
@@ -1,9 +1,9 @@
 /*
  *  VMM IO map table
  *
- * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
  * All rights reserved
- * 
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
diff --git a/components/vmm/vmm_vector.c b/components/vmm/vmm_vector.c
index d7909607ce..1620d66c7d 100644
--- a/components/vmm/vmm_vector.c
+++ b/components/vmm/vmm_vector.c
@@ -1,9 +1,9 @@
 /*
  *  VMM vector handle
- * 
- * COPYRIGHT (C) 2013-2014, Real-Thread Information Technology Ltd
+ *
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
  * All rights reserved
- * 
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
@@ -23,9 +23,9 @@ void vmm_guest_isr(int irqno, void* parameter)
 
 void vmm_vector_init(void)
 {
-	rt_hw_interrupt_install(RT_VMM_VIRQ_TRIGGER, vmm_guest_isr, RT_NULL, "virq");
-	rt_hw_interrupt_umask(RT_VMM_VIRQ_TRIGGER);
+    rt_hw_interrupt_install(RT_VMM_VIRQ_TRIGGER, vmm_guest_isr, RT_NULL, "virq");
+    rt_hw_interrupt_umask(RT_VMM_VIRQ_TRIGGER);
 
-	return;
+    return;
 }
 
diff --git a/src/Kconfig b/src/Kconfig
index 803c827e51..aa8e514e5c 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -284,21 +284,19 @@ menu "Memory Management"
 
     endchoice
 
-    if RT_USING_SMALL_MEM
-        config RT_USING_MEMTRACE
-            bool "Enable memory trace"
-            default n
-            help
-                When enable RT_USING_MEMTRACE with shell, developer can call cmd:
-                1. memtrace
-                   to dump memory block information.
-                2. memcheck
-                   to check memory block to avoid memory overwritten.
+    config RT_USING_MEMTRACE
+        bool "Enable memory trace"
+        default n
+        help
+            When enable RT_USING_MEMTRACE with shell, developer can call cmd:
+            1. memtrace
+                to dump memory block information.
+            2. memcheck
+                to check memory block to avoid memory overwritten.
 
-                And developer also can call memcheck() in each of scheduling
-                to check memory block to find which thread has wrongly modified
-                memory.
-    endif
+            And developer also can call memcheck() in each of scheduling
+            to check memory block to find which thread has wrongly modified
+            memory.
 
     config RT_USING_HEAP
         bool
diff --git a/src/memheap.c b/src/memheap.c
index a5d86f6347..63327575cc 100644
--- a/src/memheap.c
+++ b/src/memheap.c
@@ -35,6 +35,45 @@
 
 #define RT_MEMHEAP_SIZE         RT_ALIGN(sizeof(struct rt_memheap_item), RT_ALIGN_SIZE)
 #define MEMITEM_SIZE(item)      ((rt_ubase_t)item->next - (rt_ubase_t)item - RT_MEMHEAP_SIZE)
+#define MEMITEM(ptr)            (struct rt_memheap_item*)((rt_uint8_t*)ptr - RT_MEMHEAP_SIZE)
+
+#ifdef RT_USING_MEMTRACE
+rt_inline void rt_memheap_setname(struct rt_memheap_item *item, const char *name)
+{
+    int index;
+    rt_uint8_t* ptr;
+
+    ptr = (rt_uint8_t*)&(item->next_free);
+    for (index = 0; index < sizeof(void*); index ++)
+    {
+        if (name[index] == '\0') break;
+        ptr[index] = name[index];
+    }
+    if (name[index] == '\0') ptr[index] = '\0';
+    else 
+    {
+        ptr = (rt_uint8_t*)&(item->prev_free);
+        for (index = 0; index < sizeof(void*) && (index + sizeof(void*))< RT_NAME_MAX; index ++)
+        {
+            if (name[sizeof(void*) + index] == '\0') break;
+            ptr[index] = name[sizeof(void*) + index];
+        }
+
+        if (name[sizeof(void*) + index] == '\0') ptr[index] = '\0';
+    }
+}
+
+void rt_mem_set_tag(void* ptr, const char* name)
+{
+    struct rt_memheap_item* item;
+
+    if (ptr && name)
+    {
+        item = MEMITEM(ptr);
+        rt_memheap_setname(item, name);
+    }
+}
+#endif
 
 /*
  * The initialized memory pool will be:
@@ -66,7 +105,7 @@ rt_err_t rt_memheap_init(struct rt_memheap *memheap,
 
     /* initialize the free list header */
     item            = &(memheap->free_header);
-    item->magic     = RT_MEMHEAP_MAGIC;
+    item->magic     = (RT_MEMHEAP_MAGIC | RT_MEMHEAP_FREED);
     item->pool_ptr  = memheap;
     item->next      = RT_NULL;
     item->prev      = RT_NULL;
@@ -78,7 +117,7 @@ rt_err_t rt_memheap_init(struct rt_memheap *memheap,
 
     /* initialize the first big memory block */
     item            = (struct rt_memheap_item *)start_addr;
-    item->magic     = RT_MEMHEAP_MAGIC;
+    item->magic     = (RT_MEMHEAP_MAGIC | RT_MEMHEAP_FREED);
     item->pool_ptr  = memheap;
     item->next      = RT_NULL;
     item->prev      = RT_NULL;
@@ -107,7 +146,7 @@ rt_err_t rt_memheap_init(struct rt_memheap *memheap,
      */
     item = item->next;
     /* it's a used memory block */
-    item->magic     = RT_MEMHEAP_MAGIC | RT_MEMHEAP_USED;
+    item->magic     = (RT_MEMHEAP_MAGIC | RT_MEMHEAP_USED);
     item->pool_ptr  = memheap;
     item->next      = (struct rt_memheap_item *)start_addr;
     item->prev      = (struct rt_memheap_item *)start_addr;
@@ -205,7 +244,7 @@ void *rt_memheap_alloc(struct rt_memheap *heap, rt_size_t size)
                               new_ptr));
 
                 /* mark the new block as a memory block and freed. */
-                new_ptr->magic = RT_MEMHEAP_MAGIC;
+                new_ptr->magic = (RT_MEMHEAP_MAGIC | RT_MEMHEAP_FREED);
 
                 /* put the pool pointer into the new block. */
                 new_ptr->pool_ptr = heap;
@@ -263,7 +302,7 @@ void *rt_memheap_alloc(struct rt_memheap *heap, rt_size_t size)
             }
 
             /* Mark the allocated block as not available. */
-            header_ptr->magic |= RT_MEMHEAP_USED;
+            header_ptr->magic = (RT_MEMHEAP_MAGIC | RT_MEMHEAP_USED);
 
 #ifdef RT_USING_MEMTRACE
             if (rt_thread_self())
@@ -391,7 +430,7 @@ void *rt_memheap_realloc(struct rt_memheap *heap, void *ptr, rt_size_t newsize)
                               next_ptr->prev));
 
                 /* mark the new block as a memory block and freed. */
-                next_ptr->magic = RT_MEMHEAP_MAGIC;
+                next_ptr->magic = (RT_MEMHEAP_MAGIC | RT_MEMHEAP_FREED);
 
                 /* put the pool pointer into the new block. */
                 next_ptr->pool_ptr = heap;
@@ -460,7 +499,7 @@ void *rt_memheap_realloc(struct rt_memheap *heap, void *ptr, rt_size_t newsize)
                   new_ptr));
 
     /* mark the new block as a memory block and freed. */
-    new_ptr->magic = RT_MEMHEAP_MAGIC;
+    new_ptr->magic = (RT_MEMHEAP_MAGIC | RT_MEMHEAP_FREED);
     /* put the pool pointer into the new block. */
     new_ptr->pool_ptr = heap;
 
@@ -535,8 +574,12 @@ void rt_memheap_free(void *ptr)
                                     ptr, header_ptr));
 
     /* check magic */
-    RT_ASSERT((header_ptr->magic & RT_MEMHEAP_MASK) == RT_MEMHEAP_MAGIC);
-    RT_ASSERT(header_ptr->magic & RT_MEMHEAP_USED);
+    if (header_ptr->magic != (RT_MEMHEAP_MAGIC | RT_MEMHEAP_USED))
+    {
+        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("bad magic:0x%08x @ memheap\n",
+                                        header_ptr->magic));
+    }
+    RT_ASSERT(header_ptr->magic == (RT_MEMHEAP_MAGIC | RT_MEMHEAP_USED));
     /* check whether this block of memory has been over-written. */
     RT_ASSERT((header_ptr->next->magic & RT_MEMHEAP_MASK) == RT_MEMHEAP_MAGIC);
 
@@ -556,9 +599,9 @@ void rt_memheap_free(void *ptr)
     }
 
     /* Mark the memory as available. */
-    header_ptr->magic &= ~RT_MEMHEAP_USED;
+    header_ptr->magic = (RT_MEMHEAP_MAGIC | RT_MEMHEAP_FREED);
     /* Adjust the available number of bytes. */
-    heap->available_size = heap->available_size + MEMITEM_SIZE(header_ptr);
+    heap->available_size += MEMITEM_SIZE(header_ptr);
 
     /* Determine if the block can be merged with the previous neighbor. */
     if (!RT_MEMHEAP_IS_USED(header_ptr->prev))
@@ -567,7 +610,7 @@ void rt_memheap_free(void *ptr)
                                         header_ptr->prev));
 
         /* adjust the available number of bytes. */
-        heap->available_size = heap->available_size + RT_MEMHEAP_SIZE;
+        heap->available_size += RT_MEMHEAP_SIZE;
 
         /* yes, merge block with previous neighbor. */
         (header_ptr->prev)->next = header_ptr->next;
@@ -583,7 +626,7 @@ void rt_memheap_free(void *ptr)
     if (!RT_MEMHEAP_IS_USED(header_ptr->next))
     {
         /* adjust the available number of bytes. */
-        heap->available_size = heap->available_size + RT_MEMHEAP_SIZE;
+        heap->available_size += RT_MEMHEAP_SIZE;
 
         /* merge block with next neighbor. */
         new_ptr = header_ptr->next;
@@ -622,6 +665,91 @@ void rt_memheap_free(void *ptr)
 }
 RTM_EXPORT(rt_memheap_free);
 
+#ifdef RT_USING_FINSH
+static void _memheap_dump_tag(struct rt_memheap_item* item)
+{
+    rt_uint8_t name[2 * sizeof(void*)];
+    rt_uint8_t* ptr;
+
+    ptr = (rt_uint8_t*)&(item->next_free);
+    rt_memcpy(name, ptr, sizeof(void*));
+    ptr = (rt_uint8_t*)&(item->prev_free);
+    rt_memcpy(&name[sizeof(void*)], ptr, sizeof(void*));
+
+    rt_kprintf("%.*s", 2 * sizeof(void*), name);
+}
+
+int rt_memheap_dump(struct rt_memheap *heap)
+{
+    struct rt_memheap_item *item, *end;
+
+    if (heap == RT_NULL) return 0;
+    RT_ASSERT(rt_object_get_type(&heap->parent) == RT_Object_Class_MemHeap);
+
+    rt_kprintf("\n[%.*s] [0x%08x - 0x%08x]->\n", RT_NAME_MAX, heap->parent.name, 
+        (rt_ubase_t)heap->start_addr, (rt_ubase_t)heap->start_addr + heap->pool_size);
+    rt_kprintf("------------------------------\n");
+
+    /* lock memheap */
+    rt_sem_take(&(heap->lock), RT_WAITING_FOREVER);
+    item = heap->block_list;
+
+    end = (struct rt_memheap_item *) ((rt_uint8_t *)heap->start_addr + heap->pool_size - RT_MEMHEAP_SIZE);
+
+    /* for each memory block */
+    while ((rt_ubase_t)item < ((rt_ubase_t)end))
+    {
+        if (RT_MEMHEAP_IS_USED(item) && ((item->magic & RT_MEMHEAP_MASK) != RT_MEMHEAP_MAGIC))
+            rt_kprintf("0x%08x", item + 1);
+
+        if (item->magic == (RT_MEMHEAP_MAGIC | RT_MEMHEAP_USED))
+        {
+            rt_kprintf("0x%08x: %-8d ",     item + 1, MEMITEM_SIZE(item));
+            _memheap_dump_tag(item);
+            rt_kprintf("\n");
+        }
+        else
+        {
+            rt_kprintf("0x%08x: %-8d <F>\n", item + 1, MEMITEM_SIZE(item));
+        }
+
+        item = item->next;
+    }
+    rt_sem_release(&(heap->lock));
+
+    return 0;
+}
+
+int memheaptrace(void)
+{
+    int count = rt_object_get_length(RT_Object_Class_MemHeap);
+    struct rt_memheap **heaps;
+
+    if (count > 0)
+    {
+        int index;
+        extern int list_memheap(void);
+
+        heaps = (struct rt_memheap**)rt_malloc(sizeof(struct rt_memheap*) * count);
+        if (heaps == RT_NULL) return 0;
+
+        list_memheap();
+
+        rt_kprintf("memheap header size: %d\n", RT_MEMHEAP_SIZE);
+        count = rt_object_get_pointers(RT_Object_Class_MemHeap, (rt_object_t*)heaps, count);
+        for (index = 0; index < count; index++)
+        {
+            rt_memheap_dump(heaps[index]);
+        }
+
+        rt_free(heaps);
+    }
+
+    return 0;
+}
+MSH_CMD_EXPORT(memheaptrace, dump memory trace information);
+#endif
+
 #ifdef RT_USING_MEMHEAP_AS_HEAP
 static struct rt_memheap _heap;
 
@@ -670,6 +798,24 @@ void *rt_malloc(rt_size_t size)
         }
     }
 
+
+#ifdef RT_USING_MEMTRACE
+    if (ptr == RT_NULL)
+    {
+        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("malloc[%d] => NULL", size));
+    }
+    else
+    {
+        struct rt_memheap_item *item = MEMITEM(ptr);
+        if (rt_thread_self())
+            rt_memheap_setname(item, rt_thread_self()->name);
+        else
+            rt_memheap_setname(item, "<null>");
+
+        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("malloc => 0x%08x : %d", ptr, size));
+    }
+#endif
+
     return ptr;
 }
 RTM_EXPORT(rt_malloc);
@@ -718,6 +864,24 @@ void *rt_realloc(void *rmem, rt_size_t newsize)
         }
     }
 
+#ifdef RT_USING_MEMTRACE
+    if (new_ptr == RT_NULL)
+    {
+        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("realloc[%d] => NULL", newsize));
+    }
+    else
+    {
+        struct rt_memheap_item *item = MEMITEM(new_ptr);
+        if (rt_thread_self())
+            rt_memheap_setname(item, rt_thread_self()->name);
+        else
+            rt_memheap_setname(item, "<null>");
+
+        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("realloc => 0x%08x : %d",
+                                        new_ptr, newsize));
+    }
+#endif
+
     return new_ptr;
 }
 RTM_EXPORT(rt_realloc);
@@ -735,6 +899,19 @@ void *rt_calloc(rt_size_t count, rt_size_t size)
         rt_memset(ptr, 0, total_size);
     }
 
+#ifdef RT_USING_MEMTRACE
+    if (ptr == RT_NULL)
+    {
+        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("calloc[%d x %d] => NULL",
+                                        count, size));
+    }
+    else
+    {
+        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("calloc => 0x%08x : %d",
+                                        ptr, count * size));
+    }
+#endif
+
     return ptr;
 }
 RTM_EXPORT(rt_calloc);