From e2448aac991fff9bc29d892de9d78c6d1714e81c Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sun, 15 Jan 2012 09:37:27 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3811
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/platforms/STM32/i2c_lld.c  | 6 ------
 os/hal/platforms/STM32/spi_lld.c  | 4 +---
 os/hal/platforms/STM32/uart_lld.c | 5 -----
 3 files changed, 1 insertion(+), 14 deletions(-)

(limited to 'os/hal/platforms/STM32')

diff --git a/os/hal/platforms/STM32/i2c_lld.c b/os/hal/platforms/STM32/i2c_lld.c
index 1e96c922c..b947dd579 100644
--- a/os/hal/platforms/STM32/i2c_lld.c
+++ b/os/hal/platforms/STM32/i2c_lld.c
@@ -153,8 +153,6 @@ static void i2c_lld_abort_operation(I2CDriver *i2cp) {
   /* Stops the associated DMA streams.*/
   dmaStreamDisable(i2cp->dmatx);
   dmaStreamDisable(i2cp->dmarx);
-  dmaStreamClearInterrupt(i2cp->dmatx);
-  dmaStreamClearInterrupt(i2cp->dmarx);
 }
 
 /**
@@ -362,7 +360,6 @@ static void i2c_lld_serve_rx_end_irq(I2CDriver *i2cp, uint32_t flags) {
 #endif
 
   dmaStreamDisable(i2cp->dmarx);
-  dmaStreamClearInterrupt(i2cp->dmarx);
 
   dp->CR2 &= ~I2C_CR2_LAST;
   dp->CR1 &= ~I2C_CR1_ACK;
@@ -390,7 +387,6 @@ static void i2c_lld_serve_tx_end_irq(I2CDriver *i2cp, uint32_t flags) {
 #endif
 
   dmaStreamDisable(i2cp->dmatx);
-  dmaStreamClearInterrupt(i2cp->dmatx);
   /* Enables interrupts to catch BTF event meaning transmission part complete.
      Interrupt handler will decide to generate STOP or to begin receiving part
      of R/W transaction itself.*/
@@ -412,8 +408,6 @@ static void i2c_lld_serve_error_interrupt(I2CDriver *i2cp) {
   chSysLockFromIsr();
   dmaStreamDisable(i2cp->dmatx);
   dmaStreamDisable(i2cp->dmarx);
-  dmaStreamClearInterrupt(i2cp->dmatx);
-  dmaStreamClearInterrupt(i2cp->dmarx);
   chSysUnlockFromIsr();
 
   errors = I2CD_NO_ERROR;
diff --git a/os/hal/platforms/STM32/spi_lld.c b/os/hal/platforms/STM32/spi_lld.c
index c98d762b3..1e9c69100 100644
--- a/os/hal/platforms/STM32/spi_lld.c
+++ b/os/hal/platforms/STM32/spi_lld.c
@@ -106,11 +106,9 @@ static void spi_lld_serve_rx_interrupt(SPIDriver *spip, uint32_t flags) {
   (void)flags;
 #endif
 
-  /* Stop everything. The status of the TX DMA is cleared here because its
-     handler is only invoked in case of error.*/
+  /* Stop everything.*/
   dmaStreamDisable(spip->dmatx);
   dmaStreamDisable(spip->dmarx);
-  dmaStreamClearInterrupt(spip->dmatx);
 
   /* Portable SPI ISR code defined in the high level driver, note, it is
      a macro.*/
diff --git a/os/hal/platforms/STM32/uart_lld.c b/os/hal/platforms/STM32/uart_lld.c
index a9be379af..1c377273b 100644
--- a/os/hal/platforms/STM32/uart_lld.c
+++ b/os/hal/platforms/STM32/uart_lld.c
@@ -139,9 +139,7 @@ static void usart_stop(UARTDriver *uartp) {
 
   /* Stops RX and TX DMA channels.*/
   dmaStreamDisable(uartp->dmarx);
-  dmaStreamClearInterrupt(uartp->dmarx);
   dmaStreamDisable(uartp->dmatx);
-  dmaStreamClearInterrupt(uartp->dmatx);
   
   /* Stops USART operations.*/
   uartp->usart->CR1 = 0;
@@ -534,7 +532,6 @@ void uart_lld_start_send(UARTDriver *uartp, size_t n, const void *txbuf) {
 size_t uart_lld_stop_send(UARTDriver *uartp) {
 
   dmaStreamDisable(uartp->dmatx);
-  dmaStreamClearInterrupt(uartp->dmatx);
   return dmaStreamGetTransactionSize(uartp->dmatx);
 }
 
@@ -553,7 +550,6 @@ void uart_lld_start_receive(UARTDriver *uartp, size_t n, void *rxbuf) {
 
   /* Stopping previous activity (idle state).*/
   dmaStreamDisable(uartp->dmarx);
-  dmaStreamClearInterrupt(uartp->dmarx);
 
   /* RX DMA channel preparation and start.*/
   dmaStreamSetMemory0(uartp->dmarx, rxbuf);
@@ -578,7 +574,6 @@ size_t uart_lld_stop_receive(UARTDriver *uartp) {
   size_t n;
 
   dmaStreamDisable(uartp->dmarx);
-  dmaStreamClearInterrupt(uartp->dmarx);
   n = dmaStreamGetTransactionSize(uartp->dmarx);
   set_rx_idle_loop(uartp);
   return n;
-- 
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