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drivers/serial: The upper half serial driver configuration CONFIG_SERIAL_DMA used to enable DMA on both RX and TX streams. This was replaced with CONFIG_SERIAL_RXDMA and CONFIG_SERIAKL_TXDMA which will permit supporting DMA on only one or both streams.

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This commit is contained in:
Gregory Nutt
2019-04-24 12:11:40 -06:00
parent 2609b0dff3
commit 0d203fd535
7 changed files with 78 additions and 36 deletions
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drivers/serial/serial_dma.c
+12 -3
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@@ -46,7 +46,7 @@
#include <nuttx/serial/serial.h>
#ifdef CONFIG_SERIAL_DMA
#if defined(CONFIG_SERIAL_TXDMA) || defined(CONFIG_SERIAL_RXDMA)
/************************************************************************************
* Private Functions
@@ -105,7 +105,8 @@ static int uart_check_signo(const char *buf, size_t size)
*
************************************************************************************/
#if defined(CONFIG_TTY_SIGINT) || defined(CONFIG_TTY_SIGSTP)
#if defined(CONFIG_SERIAL_RXDMA) && \
(defined(CONFIG_TTY_SIGINT) || defined(CONFIG_TTY_SIGSTP))
static int uart_recvchars_signo(FAR uart_dev_t *dev)
{
FAR struct uart_dmaxfer_s *xfer = &dev->dmarx;
@@ -144,6 +145,7 @@ static int uart_recvchars_signo(FAR uart_dev_t *dev)
*
************************************************************************************/
#ifdef CONFIG_SERIAL_TXDMA
void uart_xmitchars_dma(FAR uart_dev_t *dev)
{
FAR struct uart_dmaxfer_s *xfer = &dev->dmatx;
@@ -172,6 +174,7 @@ void uart_xmitchars_dma(FAR uart_dev_t *dev)
uart_dmasend(dev);
}
#endif
/************************************************************************************
* Name: uart_xmitchars_done
@@ -183,6 +186,7 @@ void uart_xmitchars_dma(FAR uart_dev_t *dev)
*
************************************************************************************/
#ifdef CONFIG_SERIAL_TXDMA
void uart_xmitchars_done(FAR uart_dev_t *dev)
{
FAR struct uart_dmaxfer_s *xfer = &dev->dmatx;
@@ -204,6 +208,7 @@ void uart_xmitchars_done(FAR uart_dev_t *dev)
uart_datasent(dev);
}
}
#endif
/************************************************************************************
* Name: uart_recvchars_dma
@@ -213,6 +218,7 @@ void uart_xmitchars_done(FAR uart_dev_t *dev)
*
************************************************************************************/
#ifdef CONFIG_SERIAL_RXDMA
void uart_recvchars_dma(FAR uart_dev_t *dev)
{
FAR struct uart_dmaxfer_s *xfer = &dev->dmarx;
@@ -331,6 +337,7 @@ void uart_recvchars_dma(FAR uart_dev_t *dev)
uart_dmareceive(dev);
}
#endif
/************************************************************************************
* Name: uart_recvchars_done
@@ -342,6 +349,7 @@ void uart_recvchars_dma(FAR uart_dev_t *dev)
*
************************************************************************************/
#ifdef CONFIG_SERIAL_RXDMA
void uart_recvchars_done(FAR uart_dev_t *dev)
{
FAR struct uart_dmaxfer_s *xfer = &dev->dmarx;
@@ -383,5 +391,6 @@ void uart_recvchars_done(FAR uart_dev_t *dev)
}
#endif
}
#endif
#endif /* CONFIG_SERIAL_DMA */
#endif /* CONFIG_SERIAL_TXDMA || CONFIG_SERIAL_RXDMA */