Added SPI3 support to codec.c / Moved the codec configuration to board.h

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@475 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/stm32_radio/board.h

@@ -42,12 +42,26 @@
 // 	<i>Default: 1
 #define STM32_CONSOLE_USART     1
 
-// <o> LCD Modul Version
+// <o> LCD Module Version
 // <1=>Version 1:fmt0371
 // <2=>Version 2:ili9320/9325
 // 	<i>Default: 1
 #define LCD_VERSION             1
 
+/*
+ * IMPORTANT NOTICE:
+ * CODEC_MASTER_MODE = 1 with CODEC_USE_SPI3 = 0 is unusable due to a hardware bug of STM32's SPI2.
+ */
+// <o> CODEC Mode
+// <0=>I2S Slave
+// <1=>I2S Master
+#define CODEC_MASTER_MODE	0
+
+// <o> CODEC SPI Port
+// <0=>SPI2
+// <1=>SPI3
+#define CODEC_USE_SPI3		0
+
 void rt_hw_board_led_on(int n);
 void rt_hw_board_led_off(int n);
 void rt_hw_board_init(void);

bsp/stm32_radio/codec.h

@@ -3,6 +3,7 @@
 
 #include <stdint.h>
 
+/* Register Definitions */
 #define REG_SOFTWARE_RESET		((uint16_t)0)
 #define REG_POWER_MANAGEMENT1	((uint16_t)(1 << 9))
 #define REG_POWER_MANAGEMENT2	((uint16_t)(2 << 9))

bsp/stm32_radio/stm32f10x_it.c

@@ -353,6 +353,7 @@ void DMA1_Channel4_IRQHandler(void)
 *******************************************************************************/
 void DMA1_Channel5_IRQHandler(void)
 {
+#if !CODEC_USE_SPI3
     extern void codec_dma_isr(void);
 
     /* enter interrupt */
@@ -370,6 +371,7 @@ void DMA1_Channel5_IRQHandler(void)
 
     /* leave interrupt */
     rt_interrupt_leave();
+#endif
 }
 
 /*******************************************************************************
@@ -636,6 +638,57 @@ void SDIO_IRQHandler(void)
 #endif
 }
 
+/*******************************************************************************
+* Function Name  : SPI3_IRQHandler
+* Description    : This function handles SPI3 global interrupt request.
+* Input          : None
+* Output         : None
+* Return         : None
+*******************************************************************************/
+void SPI3_IRQHandler(void)
+{
+#if CODEC_USE_SPI3
+    extern void codec_isr(void);
+
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    codec_isr();
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+#endif
+}
+
+/*******************************************************************************
+* Function Name  : DMA2_Channel2_IRQHandler
+* Description    : This function handles DMA2 Channel 2 interrupt request.
+* Input          : None
+* Output         : None
+* Return         : None
+*******************************************************************************/
+void DMA2_Channel2_IRQHandler(void)
+{
+#if CODEC_USE_SPI3
+    extern void codec_dma_isr(void);
+
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    if (DMA_GetITStatus(DMA2_IT_TC2))
+    {
+        /* clear DMA flag */
+        DMA_ClearFlag(DMA2_FLAG_TC2 | DMA2_FLAG_TE2);
+
+        /* transmission complete, invoke serial dma tx isr */
+        codec_dma_isr();
+    }
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+#endif
+}
+
 /* add on 2009-12-31 for usb */
 extern void CTR_HP(void);
 extern void USB_Istr(void);