diff options
Diffstat (limited to 'stmhal/dma.h')
| -rw-r--r-- | stmhal/dma.h | 58 |
1 files changed, 55 insertions, 3 deletions
diff --git a/stmhal/dma.h b/stmhal/dma.h index 3e62792613..0e751757fd 100644 --- a/stmhal/dma.h +++ b/stmhal/dma.h @@ -24,12 +24,64 @@ * THE SOFTWARE. */ -//TODO: Put stream/channel defs for i2c/spi/can, etc here +// These are ordered by DMAx_Stream number, and within a stream by channel +// number. The duplicate streams are ok as long as they aren't used at the +// same time. +// +// Currently I2C and SPI are synchronous and they call dma_init/dma_deinit +// around each transfer. + +// DMA1 streams + +#define DMA_STREAM_I2C1_RX DMA1_Stream0 +#define DMA_CHANNEL_I2C1_RX DMA_CHANNEL_1 + +#define DMA_STREAM_SPI3_RX DMA1_Stream2 +#define DMA_CHANNEL_SPI3_RX DMA_CHANNEL_0 + +#define DMA_STREAM_I2C3_RX DMA1_Stream2 +#define DMA_CHANNEL_I2C3_RX DMA_CHANNEL_3 + +#define DMA_STREAM_I2C2_RX DMA1_Stream2 +#define DMA_CHANNEL_I2C2_RX DMA_CHANNEL_7 + +#define DMA_STREAM_SPI2_RX DMA1_Stream3 +#define DMA_CHANNEL_SPI2_RX DMA_CHANNEL_0 + +#define DMA_STREAM_SPI2_TX DMA1_Stream4 +#define DMA_CHANNEL_SPI2_TX DMA_CHANNEL_0 + +#define DMA_STREAM_I2C3_TX DMA1_Stream4 +#define DMA_CHANNEL_I2C3_TX DMA_CHANNEL_3 + +#define DMA_STREAM_DAC1 DMA1_Stream5 +#define DMA_CHANNEL_DAC1 DMA_CHANNEL_7 + +#define DMA_STREAM_DAC2 DMA1_Stream6 +#define DMA_CHANNEL_DAC2 DMA_CHANNEL_7 + +#define DMA_STREAM_SPI3_TX DMA1_Stream7 +#define DMA_CHANNEL_SPI3_TX DMA_CHANNEL_0 + +#define DMA_STREAM_I2C1_TX DMA1_Stream7 +#define DMA_CHANNEL_I2C1_TX DMA_CHANNEL_1 + +#define DMA_STREAM_I2C2_TX DMA1_Stream7 +#define DMA_CHANNEL_I2C2_TX DMA_CHANNEL_7 + +// DMA2 streams + +#define DMA_STREAM_SPI1_RX DMA2_Stream2 +#define DMA_CHANNEL_SPI1_RX DMA_CHANNEL_3 + #define DMA_STREAM_SDIO_RX DMA2_Stream3 -#define DMA_CHANNEL_SDIO_RX DMA_CHANNEL_4 +#define DMA_CHANNEL_SDIO_RX DMA_CHANNEL_4 + +#define DMA_STREAM_SPI1_TX DMA2_Stream5 +#define DMA_CHANNEL_SPI1_TX DMA_CHANNEL_3 #define DMA_STREAM_SDIO_TX DMA2_Stream6 -#define DMA_CHANNEL_SDIO_TX DMA_CHANNEL_4 +#define DMA_CHANNEL_SDIO_TX DMA_CHANNEL_4 typedef union { uint16_t enabled; // Used to test if both counters are == 0 |