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Added separate sink/souce for each SPI instance. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@14940 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Giovanni Di Sirio 2021-10-23 13:16:52 +00:00
parent 6f0ab1234c
commit 6da5b1616d
2 changed files with 12 additions and 8 deletions
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14
os/hal/ports/STM32/LLD/SPIv2/hal_spi_v2_lld.c
View File

@ -116,9 +116,6 @@ SPIDriver SPID6;
/* Driver local variables and types. */
/*===========================================================================*/
static const uint16_t dummytx = 0xFFFFU;
static uint16_t dummyrx;
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
@ -362,6 +359,9 @@ msg_t spi_lld_start(SPIDriver *spip) {
uint32_t ds;
msg_t msg;
/* Resetting TX pattern source.*/
spip->txsource = 0xFFFFFFFFU;
/* If in stopped state then enables the SPI and DMA clocks.*/
if (spip->state == SPI_STOP) {
if (false) {
@ -612,11 +612,11 @@ msg_t spi_lld_ignore(SPIDriver *spip, size_t n) {
osalDbgAssert(n < 65536, "unsupported DMA transfer size");
dmaStreamSetMemory0(spip->dmarx, &dummyrx);
dmaStreamSetMemory0(spip->dmarx, &spip->rxsink);
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
dmaStreamSetMemory0(spip->dmatx, &dummytx);
dmaStreamSetMemory0(spip->dmatx, &spip->txsource);
dmaStreamSetTransactionSize(spip->dmatx, n);
dmaStreamSetMode(spip->dmatx, spip->txdmamode);
@ -679,7 +679,7 @@ msg_t spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
osalDbgAssert(n < 65536, "unsupported DMA transfer size");
dmaStreamSetMemory0(spip->dmarx, &dummyrx);
dmaStreamSetMemory0(spip->dmarx, &spip->rxsink);
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode);
@ -715,7 +715,7 @@ msg_t spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
dmaStreamSetTransactionSize(spip->dmarx, n);
dmaStreamSetMode(spip->dmarx, spip->rxdmamode | STM32_DMA_CR_MINC);
dmaStreamSetMemory0(spip->dmatx, &dummytx);
dmaStreamSetMemory0(spip->dmatx, &spip->txsource);
dmaStreamSetTransactionSize(spip->dmatx, n);
dmaStreamSetMode(spip->dmatx, spip->txdmamode);

6
os/hal/ports/STM32/LLD/SPIv2/hal_spi_v2_lld.h
View File

@ -488,7 +488,11 @@
/* RX DMA mode bit mask.*/ \
uint32_t rxdmamode; \
/* TX DMA mode bit mask.*/ \
uint32_t txdmamode
uint32_t txdmamode; \
/* Sink for discarded data.*/ \
uint32_t rxsink; \
/* Source for default TX pattern.*/ \
uint32_t txsource
/**
* @brief Low level fields of the SPI configuration structure.