[bsp][bluetrum] Optimizing the uart driver

bsp/bluetrum/ab32vg1-ab-prougen/board/Kconfig

@@ -35,14 +35,34 @@ menu "On-chip Peripheral Drivers"
                 bool "Enable UART0"
                 select RT_USING_SERIAL
                 default y
+			if BSP_USING_UART0
+				config BSP_UART0_FIFO_SIZE
+					int "BSP_UART0_FIFO_SIZE"
+					range 5 255
+					default 10
+			endif
+
             config BSP_USING_UART1
                 bool "Enable UART1"
                 select RT_USING_SERIAL
                 default n
+			if BSP_USING_UART1
+				config BSP_UART1_FIFO_SIZE
+					int "BSP_UART1_FIFO_SIZE"
+					range 5 255
+					default 10
+			endif
+
             config BSP_USING_UART2
                 bool "Enable UART2"
                 select RT_USING_SERIAL
                 default n
+			if BSP_USING_UART2
+				config BSP_UART2_FIFO_SIZE
+					int "BSP_UART2_FIFO_SIZE"
+					range 5 255
+					default 10
+			endif
         endif
 
     config BSP_USING_SDIO
@@ -174,12 +194,12 @@ menu "On-chip Peripheral Drivers"
         default n
         if BSP_USING_ONCHIP_RTC
             config RTC_USING_INTERNAL_CLK
-            bool "Using internal clock RTC"
-            default y
+	            bool "Using internal clock RTC"
+	            default y
             config RTC_USING_1S_INT
-            bool "Using 1 second interrupt"
-            depends on RT_USING_ALARM
-            default n
+	            bool "Using 1 second interrupt"
+	            depends on RT_USING_ALARM
+	            default n
         endif
 
     menuconfig BSP_USING_ADC

bsp/bluetrum/ab32vg1-ab-prougen/board/board.c

@@ -21,6 +21,7 @@ void set_cpu_irq_comm(void (*irq_hook)(void));
 void load_cache();
 void os_cache_init(void);
 void sys_error_hook(uint8_t err_no);
+void huart_timer_isr(void);
 
 typedef void (*spiflash_init_func)(uint8_t sf_read, uint8_t dummy);
 
@@ -71,6 +72,9 @@ void timer0_isr(int vector, void *param)
     rt_interrupt_enter();
     TMR0CPND = BIT(9);
     rt_tick_increase();
+#ifdef RT_USING_SERIAL
+    huart_timer_isr();
+#endif
     rt_interrupt_leave();
 }
 

bsp/bluetrum/libraries/hal_drivers/SConscript

@@ -4,6 +4,7 @@ from building import *
 
 cwd     = GetCurrentDir()
 src     = []
+src    += ['drv_common.c']
 path    = [cwd]
 path   += [cwd + '/config']
 

bsp/bluetrum/libraries/hal_drivers/drv_common.c

@@ -0,0 +1,80 @@
+#include "drv_common.h"
+
+#define DRV_THREAD_PRIORITY         18
+#define DRV_THREAD_STACK_SIZE       512
+#define DRV_THREAD_TIMESLICE        5
+
+enum {
+    MSG_UART0_IRQ,
+    MSG_UART1_IRQ,
+    MSG_UART2_IRQ,
+};
+
+static rt_thread_t drv_tid = RT_NULL;
+static rt_mq_t drv_mq = RT_NULL;
+
+void uart0_irq_process(void);
+void uart1_irq_process(void);
+
+RT_SECTION(".irq.uart")
+void uart0_irq_post(void)
+{
+    uint8_t mq_msg = MSG_UART0_IRQ;
+    rt_mq_send(drv_mq, &mq_msg, 1);
+}
+
+RT_SECTION(".irq.uart")
+void uart1_irq_post(void)
+{
+    uint8_t mq_msg = MSG_UART1_IRQ;
+    rt_mq_send(drv_mq, &mq_msg, 1);
+}
+
+RT_SECTION(".irq.uart")
+void uart2_irq_post(void)
+{
+    uint8_t mq_msg = MSG_UART2_IRQ;
+    rt_mq_send(drv_mq, &mq_msg, 1);
+}
+
+static void drv_thread_entry(void *parameter)
+{
+    uint8_t mq_msg = 0;
+    while (1) {
+        rt_mq_recv(drv_mq, &mq_msg, 1, RT_WAITING_FOREVER);
+        switch (mq_msg) {
+#ifdef BSP_USING_UART0
+            case MSG_UART0_IRQ:
+                uart0_irq_process();
+                break;
+#endif
+#ifdef BSP_USING_UART1
+            case MSG_UART1_IRQ:
+                uart1_irq_process();
+                break;
+#endif
+#ifdef BSP_USING_UART2
+            case MSG_UART2_IRQ:
+                uart2_irq_process();
+                break;
+#endif
+            default:
+                break;
+        }
+    }
+}
+
+static int drv_thread_init(void)
+{
+    drv_mq = rt_mq_create("drv", 1, 128, RT_IPC_FLAG_FIFO);
+    drv_tid = rt_thread_create("drv",
+            drv_thread_entry,
+            RT_NULL,
+            DRV_THREAD_STACK_SIZE,
+            DRV_THREAD_PRIORITY,
+            DRV_THREAD_TIMESLICE);
+
+    if (drv_tid != RT_NULL)
+        rt_thread_startup(drv_tid);
+}
+INIT_PREV_EXPORT(drv_thread_init);

bsp/bluetrum/libraries/hal_drivers/drv_common.h

@@ -17,4 +17,8 @@
 
 #define GET_PIN(PORTx,PIN) (uint8_t)__AB32_GET_PIN_##PORTx(PIN)
 
+void uart0_irq_post(void);
+void uart1_irq_post(void);
+void uart2_irq_post(void);
+
 #endif // DRV_COMMON_H__

bsp/bluetrum/libraries/hal_drivers/drv_usart.h

@@ -19,9 +19,10 @@
 struct ab32_uart_config
 {
     const char *name;
-    hal_sfr_t instance;
-    uint8_t mode;
-    uint8_t reserve[3];
+    hal_sfr_t   instance;
+    uint8_t     mode;
+    uint16_t    fifo_size;
+    uint8_t     reserve[1];
     // struct dma_config *dma_rx;
     // struct dma_config *dma_tx;
 };
@@ -45,6 +46,9 @@ struct ab32_uart
 #endif
     rt_uint16_t uart_dma_flag;
     struct rt_serial_device serial;
+    rt_uint8_t *rx_buf;
+    rt_uint8_t rx_idx;
+    rt_uint8_t rx_idx_prev;
 };
 
 #endif

bsp/bluetrum/libraries/hal_libraries/ab32vg1_hal/include/api_huart.h

@@ -0,0 +1,28 @@
+#ifndef API_HUART_H__
+#define API_HUART_H__
+
+enum {
+    HUART_TR_PA7    = 0,
+    HUART_TR_PB2,
+    HUART_TR_PB3,
+    HUART_TR_PE7,
+    HUART_TR_PA1,
+    HUART_TR_PA6,
+    HUART_TR_PB1,
+    HUART_TR_PB4,
+    HUART_TR_PE6,
+    HUART_TR_PA0,
+};
+
+void huart_init_do(uint8_t tx_port, uint8_t rx_port, uint32_t baud_rate, uint8_t *buf, uint16_t buf_size);
+void huart_setbaudrate(unsigned int baudrate);
+void huart_putchar(const char ch);
+void huart_tx(const void *buf, unsigned int len);
+unsigned int huart_get_rxcnt(void);
+void huart_rxfifo_clear(void);
+char huart_getchar(void);
+void huart_exit(void);
+
+void huart_if_rx_ovflow(void);
+
+#endif