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ChibiOS
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Fixed BIDIMODE-related changes in SPI drivers. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9030 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
gdisirio 2016-03-06 08:17:35 +00:00
parent 08a4706fb2
commit ab30e97aea
2 changed files with 49 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
os/hal/ports/STM32/LLD/SPIv1/spi_lld.c
View File

@ -116,7 +116,8 @@ SPIDriver SPID6;
/* Driver local variables and types. */
/*===========================================================================*/
static uint16_t dummytx;
static const uint16_t dummytx = 0xFFFFU;
static uint16_t dummyrx;
/*===========================================================================*/
/* Driver local functions. */
@ -145,11 +146,12 @@ static void spi_lld_serve_rx_interrupt(SPIDriver *spip, uint32_t flags) {
#if STM32_SPI_USE_BIDIMODE
spip->spi->CR1 |= SPI_CR1_BIDIOE;
#endif
/* Errors reset sequence.*/
/* Errors reset sequence. It is required becaue BIDIOE could cause extra
clock pulses after DMA stopped reading.*/
(void)spip->spi->DR;
(void)spip->spi->SR;
#endif
/* Portable SPI ISR code defined in the high level driver, note, it is
a macro.*/
@ -191,8 +193,6 @@ static void spi_lld_serve_tx_interrupt(SPIDriver *spip, uint32_t flags) {
*/
void spi_lld_init(void) {
dummytx = 0xFFFF;
#if STM32_SPI_USE_SPI1
spiObjectInit(&SPID1);
SPID1.spi = SPI1;
@ -531,12 +531,18 @@ void spi_lld_ignore(SPIDriver *spip, size_t n) {
if ((spip->spi->CR1 & SPI_CR1_BIDIMODE) != 0) {
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIOE) != 0,
"BIDIOE not set");
}
#endif
dmaStreamSetMemory0(spip->dmarx, &dummyrx);
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
dmaStreamSetMemory0(spip->dmatx, &dummytx);
dmaStreamSetTransactionSize(spip->dmatx, n);
dmaStreamSetMode(spip->dmatx, spip->txdmamode);
dmaStreamEnable(spip->dmarx);
dmaStreamEnable(spip->dmatx);
}
@ -594,12 +600,18 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
if ((spip->spi->CR1 & SPI_CR1_BIDIMODE) != 0) {
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIOE) != 0,
"BIDIOE not set");
}
#endif
dmaStreamSetMemory0(spip->dmarx, &dummyrx);
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
dmaStreamSetMemory0(spip->dmatx, txbuf);
dmaStreamSetTransactionSize(spip->dmatx, n);
dmaStreamSetMode(spip->dmatx, spip->txdmamode | STM32_DMA_CR_MINC);
dmaStreamEnable(spip->dmarx);
dmaStreamEnable(spip->dmatx);
}
@ -619,10 +631,11 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
#if STM32_SPI_USE_BIDIMODE
if ((spip->spi->CR1 & SPI_CR1_BIDIMODE) != 0) {
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIOE) != 0,
"BIDIOE not set");
if ((spip->spi->CR1 & SPI_CR1_BIDIMODE) != 0) {
dmaStreamSetMemory0(spip->dmarx, rxbuf);
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode | STM32_DMA_CR_MINC);
@ -666,8 +679,6 @@ uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame) {
#if STM32_SPI_USE_BIDIMODE
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIMODE) == 0,
"spiPolledExchange() not possible with BIDIMODE");
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIOE) != 0,
"BIDIOE not set");
#endif
spip->spi->DR = frame;

23
os/hal/ports/STM32/LLD/SPIv2/spi_lld.c
View File

@ -117,6 +117,7 @@ SPIDriver SPID6;
/*===========================================================================*/
static const uint16_t dummytx = 0xFFFFU;
static uint16_t dummyrx;
/*===========================================================================*/
/* Driver local functions. */
@ -145,11 +146,12 @@ static void spi_lld_serve_rx_interrupt(SPIDriver *spip, uint32_t flags) {
#if STM32_SPI_USE_BIDIMODE
spip->spi->CR1 |= SPI_CR1_BIDIOE;
#endif
/* Errors reset sequence.*/
/* Errors reset sequence. It is required becaue BIDIOE could cause extra
clock pulses after DMA stopped reading.*/
(void)spip->spi->DR;
(void)spip->spi->SR;
#endif
/* Portable SPI ISR code defined in the high level driver, note, it is
a macro.*/
@ -532,12 +534,18 @@ void spi_lld_ignore(SPIDriver *spip, size_t n) {
if ((spip->spi->CR1 & SPI_CR1_BIDIMODE) != 0) {
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIOE) != 0,
"BIDIOE not set");
}
#endif
dmaStreamSetMemory0(spip->dmarx, &dummyrx);
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
dmaStreamSetMemory0(spip->dmatx, &dummytx);
dmaStreamSetTransactionSize(spip->dmatx, n);
dmaStreamSetMode(spip->dmatx, spip->txdmamode);
dmaStreamEnable(spip->dmarx);
dmaStreamEnable(spip->dmatx);
}
@ -595,12 +603,18 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
if ((spip->spi->CR1 & SPI_CR1_BIDIMODE) != 0) {
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIOE) != 0,
"BIDIOE not set");
}
#endif
dmaStreamSetMemory0(spip->dmarx, &dummyrx);
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
dmaStreamSetMemory0(spip->dmatx, txbuf);
dmaStreamSetTransactionSize(spip->dmatx, n);
dmaStreamSetMode(spip->dmatx, spip->txdmamode | STM32_DMA_CR_MINC);
dmaStreamEnable(spip->dmarx);
dmaStreamEnable(spip->dmatx);
}
@ -620,10 +634,11 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
#if STM32_SPI_USE_BIDIMODE
if ((spip->spi->CR1 & SPI_CR1_BIDIMODE) != 0) {
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIOE) != 0,
"BIDIOE not set");
if ((spip->spi->CR1 & SPI_CR1_BIDIMODE) != 0) {
dmaStreamSetMemory0(spip->dmarx, rxbuf);
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode | STM32_DMA_CR_MINC);
@ -667,8 +682,6 @@ uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame) {
#if STM32_SPI_USE_BIDIMODE
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIMODE) == 0,
"spiPolledExchange() not possible with BIDIMODE");
osalDbgAssert((spip->spi->CR1 & SPI_CR1_BIDIOE) != 0,
"BIDIOE not set");
#endif
/*