From 28acd9ec851f318a3198b60eb5bf76f46e05adbf Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sat, 31 Jul 2010 08:06:30 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2102
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/platforms/STM32/uart_lld.c | 12 ++++++++++++
 os/hal/platforms/STM32/uart_lld.h | 26 ++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)

(limited to 'os')

diff --git a/os/hal/platforms/STM32/uart_lld.c b/os/hal/platforms/STM32/uart_lld.c
index 88dd7d8a3..e585eed6a 100644
--- a/os/hal/platforms/STM32/uart_lld.c
+++ b/os/hal/platforms/STM32/uart_lld.c
@@ -249,6 +249,9 @@ CH_IRQ_HANDLER(DMA1_Ch4_IRQHandler) {
 
   CH_IRQ_PROLOGUE();
 
+  if ((STM32_DMA1->ISR & DMA_ISR_TEIF4) != 0) {
+    STM32_UART_USART1_DMA_ERROR_HOOK();
+  }
   dmaClearChannel(STM32_DMA1, STM32_DMA_CHANNEL_4);
   uartp = &UARTD1;
   if (uartp->ud_rxstate == UART_RX_IDLE) {
@@ -275,6 +278,9 @@ CH_IRQ_HANDLER(DMA1_Ch5_IRQHandler) {
 
   CH_IRQ_PROLOGUE();
 
+  if ((STM32_DMA1->ISR & DMA_ISR_TEIF5) != 0) {
+    STM32_UART_USART1_DMA_ERROR_HOOK();
+  }
   dmaClearChannel(STM32_DMA1, STM32_DMA_CHANNEL_5);
   dmaDisableChannel(STM32_DMA1, STM32_DMA_CHANNEL_5);
   serve_tx_end_irq(&UARTD1);
@@ -304,6 +310,9 @@ CH_IRQ_HANDLER(DMA1_Ch6_IRQHandler) {
 
   CH_IRQ_PROLOGUE();
 
+  if ((STM32_DMA1->ISR & DMA_ISR_TEIF6) != 0) {
+    STM32_UART_USART2_DMA_ERROR_HOOK();
+  }
   dmaClearChannel(STM32_DMA1, STM32_DMA_CHANNEL_6);
   uartp = &UARTD2;
   if (uartp->ud_rxstate == UART_RX_IDLE) {
@@ -330,6 +339,9 @@ CH_IRQ_HANDLER(DMA1_Ch7_IRQHandler) {
 
   CH_IRQ_PROLOGUE();
 
+  if ((STM32_DMA1->ISR & DMA_ISR_TEIF7) != 0) {
+    STM32_UART_USART2_DMA_ERROR_HOOK();
+  }
   dmaClearChannel(STM32_DMA1, STM32_DMA_CHANNEL_7);
   dmaDisableChannel(STM32_DMA1, STM32_DMA_CHANNEL_7);
   serve_tx_end_irq(&UARTD2);
diff --git a/os/hal/platforms/STM32/uart_lld.h b/os/hal/platforms/STM32/uart_lld.h
index d1033050e..1e294e212 100644
--- a/os/hal/platforms/STM32/uart_lld.h
+++ b/os/hal/platforms/STM32/uart_lld.h
@@ -115,6 +115,32 @@
 #define STM32_UART_USART3_DMA_PRIORITY      0
 #endif
 
+/**
+ * @brief   USART1 DMA error hook.
+ * @note    The default action for DMA errors is a system halt because DMA error
+ *          can only happen because programming errors.
+ */
+#if !defined(STM32_UART_USART1_DMA_ERROR_HOOK) || defined(__DOXYGEN__)
+#define STM32_UART_USART1_DMA_ERROR_HOOK()  chSysHalt()
+#endif
+
+/**
+ * @brief   USART2 DMA error hook.
+ * @note    The default action for DMA errors is a system halt because DMA error
+ *          can only happen because programming errors.
+ */
+#if !defined(STM32_UART_USART2_DMA_ERROR_HOOK) || defined(__DOXYGEN__)
+#define STM32_UART_USART2_DMA_ERROR_HOOK()  chSysHalt()
+#endif
+
+/**
+ * @brief   USART3 DMA error hook.
+ * @note    The default action for DMA errors is a system halt because DMA error
+ *          can only happen because programming errors.
+ */
+#if !defined(STM32_UART_USART3_DMA_ERROR_HOOK) || defined(__DOXYGEN__)
+#define STM32_UART_USART3_DMA_ERROR_HOOK()  chSysHalt()
+#endif
 
 /*===========================================================================*/
 /* Derived constants and error checks.                                       */
-- 
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