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Diffstat (limited to 'os/hal/ports/STM32/LLD/SPIv2/i2s_lld.c')
-rw-r--r--os/hal/ports/STM32/LLD/SPIv2/i2s_lld.c130
1 files changed, 125 insertions, 5 deletions
diff --git a/os/hal/ports/STM32/LLD/SPIv2/i2s_lld.c b/os/hal/ports/STM32/LLD/SPIv2/i2s_lld.c
index b81004a2c..a5abc5b85 100644
--- a/os/hal/ports/STM32/LLD/SPIv2/i2s_lld.c
+++ b/os/hal/ports/STM32/LLD/SPIv2/i2s_lld.c
@@ -46,6 +46,14 @@
STM32_DMA_GETCHANNEL(STM32_I2S_SPI2_TX_DMA_STREAM, \
STM32_SPI2_TX_DMA_CHN)
+#define I2S3_RX_DMA_CHANNEL \
+ STM32_DMA_GETCHANNEL(STM32_I2S_SPI3_RX_DMA_STREAM, \
+ STM32_SPI3_RX_DMA_CHN)
+
+#define I2S3_TX_DMA_CHANNEL \
+ STM32_DMA_GETCHANNEL(STM32_I2S_SPI3_TX_DMA_STREAM, \
+ STM32_SPI3_TX_DMA_CHN)
+
/*
* Static I2S settings for I2S1.
*/
@@ -84,7 +92,27 @@
#define STM32_I2S2_CFGR_CFG (SPI_I2SCFGR_I2SCFG_1 | \
SPI_I2SCFGR_I2SCFG_0)
#endif
-#endif /* !STM32_I2S_IS_MASTER(STM32_I2S_SP3_MODE) */
+#endif /* !STM32_I2S_IS_MASTER(STM32_I2S_SPI2_MODE) */
+
+/*
+ * Static I2S settings for I2S3.
+ */
+#if !STM32_I2S_IS_MASTER(STM32_I2S_SPI3_MODE)
+#if STM32_I2S_TX_ENABLED(STM32_I2S_SPI3_MODE)
+#define STM32_I2S3_CFGR_CFG 0
+#endif
+#if STM32_I2S_RX_ENABLED(STM32_I2S_SPI3_MODE)
+#define STM32_I2S3_CFGR_CFG SPI_I2SCFGR_I2SCFG_0
+#endif
+#else /* !STM32_I2S_IS_MASTER(STM32_I2S_SPI3_MODE) */
+#if STM32_I2S_TX_ENABLED(STM32_I2S_SPI3_MODE)
+#define STM32_I2S3_CFGR_CFG SPI_I2SCFGR_I2SCFG_1
+#endif
+#if STM32_I2S_RX_ENABLED(STM32_I2S_SPI3_MODE)
+#define STM32_I2S3_CFGR_CFG (SPI_I2SCFGR_I2SCFG_1 | \
+ SPI_I2SCFGR_I2SCFG_0)
+#endif
+#endif /* !STM32_I2S_IS_MASTER(STM32_I2S_SPI3_MODE) */
/*===========================================================================*/
/* Driver exported variables. */
@@ -100,6 +128,11 @@ I2SDriver I2SD1;
I2SDriver I2SD2;
#endif
+/** @brief I2S3 driver identifier.*/
+#if STM32_I2S_USE_SPI3 || defined(__DOXYGEN__)
+I2SDriver I2SD3;
+#endif
+
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
@@ -109,7 +142,8 @@ I2SDriver I2SD2;
/*===========================================================================*/
#if STM32_I2S_RX_ENABLED(STM32_I2S_SPI1_MODE) || \
- STM32_I2S_RX_ENABLED(STM32_I2S_SPI2_MODE) || defined(__DOXYGEN__)
+ STM32_I2S_RX_ENABLED(STM32_I2S_SPI2_MODE) || \
+ STM32_I2S_RX_ENABLED(STM32_I2S_SPI3_MODE) || defined(__DOXYGEN__)
/**
* @brief Shared end-of-rx service routine.
*
@@ -141,7 +175,8 @@ static void i2s_lld_serve_rx_interrupt(I2SDriver *i2sp, uint32_t flags) {
#endif
#if STM32_I2S_TX_ENABLED(STM32_I2S_SPI1_MODE) || \
- STM32_I2S_TX_ENABLED(STM32_I2S_SPI2_MODE) || defined(__DOXYGEN__)
+ STM32_I2S_TX_ENABLED(STM32_I2S_SPI2_MODE) || \
+ STM32_I2S_TX_ENABLED(STM32_I2S_SPI3_MODE) || defined(__DOXYGEN__)
/**
* @brief Shared end-of-tx service routine.
*
@@ -266,6 +301,46 @@ void i2s_lld_init(void) {
I2SD2.txdmamode = 0;
#endif
#endif
+
+#if STM32_I2S_USE_SPI3
+ i2sObjectInit(&I2SD3);
+ I2SD3.spi = SPI3;
+ I2SD3.cfg = STM32_I2S3_CFGR_CFG;
+#if STM32_I2S_RX_ENABLED(STM32_I2S_SPI3_MODE)
+ I2SD3.dmarx = STM32_DMA_STREAM(STM32_I2S_SPI3_RX_DMA_STREAM);
+ I2SD3.rxdmamode = STM32_DMA_CR_CHSEL(I2S3_RX_DMA_CHANNEL) |
+ STM32_DMA_CR_PL(STM32_I2S_SPI3_DMA_PRIORITY) |
+ STM32_DMA_CR_PSIZE_HWORD |
+ STM32_DMA_CR_MSIZE_HWORD |
+ STM32_DMA_CR_DIR_P2M |
+ STM32_DMA_CR_MINC |
+ STM32_DMA_CR_CIRC |
+ STM32_DMA_CR_HTIE |
+ STM32_DMA_CR_TCIE |
+ STM32_DMA_CR_DMEIE |
+ STM32_DMA_CR_TEIE;
+#else
+ I2SD3.dmarx = NULL;
+ I2SD3.rxdmamode = 0;
+#endif
+#if STM32_I2S_TX_ENABLED(STM32_I2S_SPI3_MODE)
+ I2SD3.dmatx = STM32_DMA_STREAM(STM32_I2S_SPI3_TX_DMA_STREAM);
+ I2SD3.txdmamode = STM32_DMA_CR_CHSEL(I2S3_TX_DMA_CHANNEL) |
+ STM32_DMA_CR_PL(STM32_I2S_SPI3_DMA_PRIORITY) |
+ STM32_DMA_CR_PSIZE_HWORD |
+ STM32_DMA_CR_MSIZE_HWORD |
+ STM32_DMA_CR_DIR_M2P |
+ STM32_DMA_CR_MINC |
+ STM32_DMA_CR_CIRC |
+ STM32_DMA_CR_HTIE |
+ STM32_DMA_CR_TCIE |
+ STM32_DMA_CR_DMEIE |
+ STM32_DMA_CR_TEIE;
+#else
+ I2SD3.dmatx = NULL;
+ I2SD3.txdmamode = 0;
+#endif
+#endif
}
/**
@@ -295,7 +370,7 @@ void i2s_lld_start(I2SDriver *i2sp) {
osalDbgAssert(!b, "stream already allocated");
/* CRs settings are done here because those never changes until
- the driver is stopped.*/
+ the driver is stopped.*/
i2sp->spi->CR1 = 0;
i2sp->spi->CR2 = SPI_CR2_RXDMAEN;
#endif
@@ -307,12 +382,13 @@ void i2s_lld_start(I2SDriver *i2sp) {
osalDbgAssert(!b, "stream already allocated");
/* CRs settings are done here because those never changes until
- the driver is stopped.*/
+ the driver is stopped.*/
i2sp->spi->CR1 = 0;
i2sp->spi->CR2 = SPI_CR2_TXDMAEN;
#endif
}
#endif
+
#if STM32_I2S_USE_SPI2
if (&I2SD2 == i2sp) {
bool b;
@@ -327,6 +403,8 @@ void i2s_lld_start(I2SDriver *i2sp) {
(void *)i2sp);
osalDbgAssert(!b, "stream already allocated");
+ /* CRs settings are done here because those never changes until
+ the driver is stopped.*/
i2sp->spi->CR1 = 0;
i2sp->spi->CR2 = SPI_CR2_RXDMAEN;
#endif
@@ -337,6 +415,42 @@ void i2s_lld_start(I2SDriver *i2sp) {
(void *)i2sp);
osalDbgAssert(!b, "stream already allocated");
+ /* CRs settings are done here because those never changes until
+ the driver is stopped.*/
+ i2sp->spi->CR1 = 0;
+ i2sp->spi->CR2 = SPI_CR2_TXDMAEN;
+#endif
+ }
+#endif
+
+#if STM32_I2S_USE_SPI3
+ if (&I2SD3 == i2sp) {
+ bool b;
+
+ /* Enabling I2S unit clock.*/
+ rccEnableSPI3(FALSE);
+
+#if STM32_I2S_RX_ENABLED(STM32_I2S_SPI3_MODE)
+ b = dmaStreamAllocate(i2sp->dmarx,
+ STM32_I2S_SPI3_IRQ_PRIORITY,
+ (stm32_dmaisr_t)i2s_lld_serve_rx_interrupt,
+ (void *)i2sp);
+ osalDbgAssert(!b, "stream already allocated");
+
+ /* CRs settings are done here because those never changes until
+ the driver is stopped.*/
+ i2sp->spi->CR1 = 0;
+ i2sp->spi->CR2 = SPI_CR2_RXDMAEN;
+#endif
+#if STM32_I2S_TX_ENABLED(STM32_I2S_SPI3_MODE)
+ b = dmaStreamAllocate(i2sp->dmatx,
+ STM32_I2S_SPI3_IRQ_PRIORITY,
+ (stm32_dmaisr_t)i2s_lld_serve_tx_interrupt,
+ (void *)i2sp);
+ osalDbgAssert(!b, "stream already allocated");
+
+ /* CRs settings are done here because those never changes until
+ the driver is stopped.*/
i2sp->spi->CR1 = 0;
i2sp->spi->CR2 = SPI_CR2_TXDMAEN;
#endif
@@ -372,10 +486,16 @@ void i2s_lld_stop(I2SDriver *i2sp) {
if (&I2SD1 == i2sp)
rccDisableSPI1(FALSE);
#endif
+
#if STM32_I2S_USE_SPI2
if (&I2SD2 == i2sp)
rccDisableSPI2(FALSE);
#endif
+
+#if STM32_I2S_USE_SPI3
+ if (&I2SD3 == i2sp)
+ rccDisableSPI3(FALSE);
+#endif
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 10:44:49 +0000