diff options
| -rw-r--r-- | ports/stm32/dma.c | 82 |
1 files changed, 79 insertions, 3 deletions
diff --git a/ports/stm32/dma.c b/ports/stm32/dma.c index f43daaab0..5192efa87 100644 --- a/ports/stm32/dma.c +++ b/ports/stm32/dma.c @@ -53,7 +53,7 @@ typedef enum { } dma_id_t; typedef struct _dma_descr_t { - #if defined(MCU_SERIES_F4) || defined(MCU_SERIES_F7) + #if defined(MCU_SERIES_F4) || defined(MCU_SERIES_F7) || defined(STM32H7) DMA_Stream_TypeDef *instance; #elif defined(MCU_SERIES_L4) DMA_Channel_TypeDef *instance; @@ -308,6 +308,82 @@ static const uint8_t dma_irqn[NSTREAM] = { DMA2_Channel7_IRQn, }; +#elif defined(STM32H7) + +#define NCONTROLLERS (2) +#define NSTREAMS_PER_CONTROLLER (8) +#define NSTREAM (NCONTROLLERS * NSTREAMS_PER_CONTROLLER) + +#define DMA_SUB_INSTANCE_AS_UINT8(dma_channel) (dma_channel) + +#define DMA1_ENABLE_MASK (0x00ff) // Bits in dma_enable_mask corresponding to DMA1 +#define DMA2_ENABLE_MASK (0xff00) // Bits in dma_enable_mask corresponding to DMA2 + +// These descriptors 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 +const dma_descr_t dma_I2C_1_RX = { DMA1_Stream0, DMA_REQUEST_I2C1_RX, DMA_PERIPH_TO_MEMORY, dma_id_0, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_SPI_3_RX = { DMA1_Stream2, DMA_REQUEST_SPI3_RX, DMA_PERIPH_TO_MEMORY, dma_id_2, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_I2C_4_RX = { DMA1_Stream2, BDMA_REQUEST_I2C4_RX, DMA_PERIPH_TO_MEMORY, dma_id_2, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_I2C_3_RX = { DMA1_Stream2, DMA_REQUEST_I2C3_RX, DMA_PERIPH_TO_MEMORY, dma_id_2, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_I2C_2_RX = { DMA1_Stream2, DMA_REQUEST_I2C2_RX, DMA_PERIPH_TO_MEMORY, dma_id_2, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_SPI_2_RX = { DMA1_Stream3, DMA_REQUEST_SPI2_RX, DMA_PERIPH_TO_MEMORY, dma_id_3, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_SPI_2_TX = { DMA1_Stream4, DMA_REQUEST_SPI2_TX, DMA_MEMORY_TO_PERIPH, dma_id_4, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_I2C_3_TX = { DMA1_Stream4, DMA_REQUEST_I2C3_TX, DMA_MEMORY_TO_PERIPH, dma_id_4, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_I2C_4_TX = { DMA1_Stream5, BDMA_REQUEST_I2C4_TX, DMA_MEMORY_TO_PERIPH, dma_id_5, &dma_init_struct_spi_i2c }; +#if defined(MICROPY_HW_ENABLE_DAC) && MICROPY_HW_ENABLE_DAC +const dma_descr_t dma_DAC_1_TX = { DMA1_Stream5, DMA_REQUEST_DAC1_TX, DMA_MEMORY_TO_PERIPH, dma_id_5, &dma_init_struct_dac }; +const dma_descr_t dma_DAC_2_TX = { DMA1_Stream6, DMA_REQUEST_DAC2_TX, DMA_MEMORY_TO_PERIPH, dma_id_6, &dma_init_struct_dac }; +#endif +const dma_descr_t dma_SPI_3_TX = { DMA1_Stream7, DMA_REQUEST_SPI3_TX, DMA_MEMORY_TO_PERIPH, dma_id_7, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_I2C_1_TX = { DMA1_Stream7, DMA_REQUEST_I2C1_TX, DMA_MEMORY_TO_PERIPH, dma_id_7, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_I2C_2_TX = { DMA1_Stream7, DMA_REQUEST_I2C2_TX, DMA_MEMORY_TO_PERIPH, dma_id_7, &dma_init_struct_spi_i2c }; + +// DMA2 streams +#if defined(SDMMC2) && MICROPY_HW_HAS_SDCARD +const dma_descr_t dma_SDMMC_2_RX= { DMA2_Stream0, DMA_CHANNEL_11, DMA_PERIPH_TO_MEMORY, dma_id_8, &dma_init_struct_sdio }; +#endif +const dma_descr_t dma_SPI_1_RX = { DMA2_Stream2, DMA_REQUEST_SPI1_RX, DMA_PERIPH_TO_MEMORY, dma_id_10, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_SPI_5_RX = { DMA2_Stream3, DMA_REQUEST_SPI5_RX, DMA_PERIPH_TO_MEMORY, dma_id_11, &dma_init_struct_spi_i2c }; +#if defined(MICROPY_HW_HAS_SDCARD) && MICROPY_HW_HAS_SDCARD +const dma_descr_t dma_SDIO_0_RX= { DMA2_Stream3, DMA_CHANNEL_4, DMA_PERIPH_TO_MEMORY, dma_id_11, &dma_init_struct_sdio }; +#endif +const dma_descr_t dma_SPI_4_RX = { DMA2_Stream3, DMA_REQUEST_SPI4_RX, DMA_PERIPH_TO_MEMORY, dma_id_11, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_SPI_5_TX = { DMA2_Stream4, DMA_REQUEST_SPI5_TX, DMA_MEMORY_TO_PERIPH, dma_id_12, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_SPI_4_TX = { DMA2_Stream4, DMA_REQUEST_SPI4_TX, DMA_MEMORY_TO_PERIPH, dma_id_12, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_SPI_6_TX = { DMA2_Stream5, BDMA_REQUEST_SPI6_TX, DMA_MEMORY_TO_PERIPH, dma_id_13, &dma_init_struct_spi_i2c }; +const dma_descr_t dma_SPI_1_TX = { DMA2_Stream5, DMA_REQUEST_SPI1_TX, DMA_MEMORY_TO_PERIPH, dma_id_13, &dma_init_struct_spi_i2c }; +#if defined(SDMMC2) && MICROPY_HW_HAS_SDCARD +const dma_descr_t dma_SDMMC_2_TX= { DMA2_Stream5, DMA_CHANNEL_11, DMA_MEMORY_TO_PERIPH, dma_id_13, &dma_init_struct_sdio }; +#endif +const dma_descr_t dma_SPI_6_RX = { DMA2_Stream6, BDMA_REQUEST_SPI6_RX, DMA_PERIPH_TO_MEMORY, dma_id_14, &dma_init_struct_spi_i2c }; +#if defined(MICROPY_HW_HAS_SDCARD) && MICROPY_HW_HAS_SDCARD +const dma_descr_t dma_SDIO_0_TX= { DMA2_Stream6, DMA_CHANNEL_4, DMA_MEMORY_TO_PERIPH, dma_id_14, &dma_init_struct_sdio }; +#endif + +static const uint8_t dma_irqn[NSTREAM] = { + DMA1_Stream0_IRQn, + DMA1_Stream1_IRQn, + DMA1_Stream2_IRQn, + DMA1_Stream3_IRQn, + DMA1_Stream4_IRQn, + DMA1_Stream5_IRQn, + DMA1_Stream6_IRQn, + DMA1_Stream7_IRQn, + DMA2_Stream0_IRQn, + DMA2_Stream1_IRQn, + DMA2_Stream2_IRQn, + DMA2_Stream3_IRQn, + DMA2_Stream4_IRQn, + DMA2_Stream5_IRQn, + DMA2_Stream6_IRQn, + DMA2_Stream7_IRQn, +}; + #endif static DMA_HandleTypeDef *dma_handle[NSTREAM] = {NULL}; @@ -320,7 +396,7 @@ volatile dma_idle_count_t dma_idle; #define DMA1_IS_CLK_ENABLED() ((RCC->AHB1ENR & RCC_AHB1ENR_DMA1EN) != 0) #define DMA2_IS_CLK_ENABLED() ((RCC->AHB1ENR & RCC_AHB1ENR_DMA2EN) != 0) -#if defined(MCU_SERIES_F4) || defined(MCU_SERIES_F7) +#if defined(MCU_SERIES_F4) || defined(MCU_SERIES_F7) || defined(STM32H7) void DMA1_Stream0_IRQHandler(void) { IRQ_ENTER(DMA1_Stream0_IRQn); if (dma_handle[dma_id_0] != NULL) { HAL_DMA_IRQHandler(dma_handle[dma_id_0]); } IRQ_EXIT(DMA1_Stream0_IRQn); } void DMA1_Stream1_IRQHandler(void) { IRQ_ENTER(DMA1_Stream1_IRQn); if (dma_handle[dma_id_1] != NULL) { HAL_DMA_IRQHandler(dma_handle[dma_id_1]); } IRQ_EXIT(DMA1_Stream1_IRQn); } @@ -409,7 +485,7 @@ void dma_init_handle(DMA_HandleTypeDef *dma, const dma_descr_t *dma_descr, void dma->Instance = dma_descr->instance; dma->Init = *dma_descr->init; dma->Init.Direction = dma_descr->transfer_direction; - #if defined(MCU_SERIES_L4) + #if defined(MCU_SERIES_L4) || defined(STM32H7) dma->Init.Request = dma_descr->sub_instance; #else dma->Init.Channel = dma_descr->sub_instance; 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