fsfw-hal/stm32h7/spi/mspInit.cpp

208 lines
8.0 KiB
C++

#include "mspInit.h"
#include "spiConf.h"
#include "spiCore.h"
#include "spiInterrupts.h"
#include "../dma_interrupts.h"
#include "stm32h743xx.h"
#include "stm32h7xx_hal_spi.h"
#include "stm32h7xx_hal_dma.h"
#include "stm32h7xx_hal_def.h"
#include <stdio.h>
/**
* @brief SPI MSP Initialization
* This function configures the hardware resources used in this example:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* - DMA configuration for transmission request by peripheral
* - NVIC configuration for DMA interrupt request enable
* @param hspi: SPI handle pointer
* @retval None
*/
void hal_spi_msp_init_dma(void *spi_handle) {
SPI_HandleTypeDef* hspi = (SPI_HandleTypeDef*) spi_handle;
if(hspi == NULL) {
return;
}
if(hspi == NULL) {
printf("HAL_SPI_MspInit: Invalid SPI handle!\n");
return;
}
assign_spi_handle(hspi);
DMA_HandleTypeDef* hdma_tx = NULL;
DMA_HandleTypeDef* hdma_rx = NULL;
get_dma_handles(&hdma_tx, &hdma_rx);
if(hdma_tx == NULL || hdma_rx == NULL) {
printf("HAL_SPI_MspInit: Invalid DMA handles. Make sure to call setDmaHandles!\n");
return;
}
hal_spi_msp_init_polling(spi_handle);
if (hspi->Instance == SPI1) {
// DMA setup
DMAx_CLK_ENABLE();
// Configure the DMA
/* Configure the DMA handler for Transmission process */
hdma_tx->Instance = SPIx_TX_DMA_STREAM;
hdma_tx->Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_tx->Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_tx->Init.MemBurst = DMA_MBURST_INC4;
hdma_tx->Init.PeriphBurst = DMA_PBURST_INC4;
hdma_tx->Init.Request = SPIx_TX_DMA_REQUEST;
hdma_tx->Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tx->Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tx->Init.MemInc = DMA_MINC_ENABLE;
hdma_tx->Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx->Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx->Init.Mode = DMA_NORMAL;
hdma_tx->Init.Priority = DMA_PRIORITY_LOW;
HAL_DMA_Init(hdma_tx);
/* Associate the initialized DMA handle to the the SPI handle */
__HAL_LINKDMA(hspi, hdmatx, *hdma_tx);
/* Configure the DMA handler for Transmission process */
hdma_rx->Instance = SPIx_RX_DMA_STREAM;
hdma_rx->Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_rx->Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_rx->Init.MemBurst = DMA_MBURST_INC4;
hdma_rx->Init.PeriphBurst = DMA_PBURST_INC4;
hdma_rx->Init.Request = SPIx_RX_DMA_REQUEST;
hdma_rx->Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_rx->Init.PeriphInc = DMA_PINC_DISABLE;
hdma_rx->Init.MemInc = DMA_MINC_ENABLE;
hdma_rx->Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_rx->Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_rx->Init.Mode = DMA_NORMAL;
hdma_rx->Init.Priority = DMA_PRIORITY_HIGH;
HAL_DMA_Init(hdma_rx);
/* Associate the initialized DMA handle to the the SPI handle */
__HAL_LINKDMA(hspi, hdmarx, *hdma_rx);
/*##-4- Configure the NVIC for DMA #########################################*/
/* NVIC configuration for DMA transfer complete interrupt (SPI1_RX) */
// Assign the interrupt handler
assign_dma_user_handler(DMA_2, DMAStreams::STREAM_2, &dma_rx_irq_handler, hdma_rx);
HAL_NVIC_SetPriority(SPIx_DMA_RX_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(SPIx_DMA_RX_IRQn);
/* NVIC configuration for DMA transfer complete interrupt (SPI1_TX) */
// Assign the interrupt handler
assign_dma_user_handler(DMA_2, DMAStreams::STREAM_3, &dma_tx_irq_handler, hdma_tx);
HAL_NVIC_SetPriority(SPIx_DMA_TX_IRQn, 1, 1);
HAL_NVIC_EnableIRQ(SPIx_DMA_TX_IRQn);
/*##-5- Configure the NVIC for SPI #########################################*/
/* NVIC configuration for SPI transfer complete interrupt (SPI1) */
// Assign the interrupt handler
assign_spi_user_handler(spi::SPI_1, &spi1_irq_handler, hspi);
HAL_NVIC_SetPriority(SPIx_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(SPIx_IRQn);
}
}
/**
* @brief SPI MSP De-Initialization
* This function frees the hardware resources used in this example:
* - Disable the Peripheral's clock
* - Revert GPIO, DMA and NVIC configuration to their default state
* @param hspi: SPI handle pointer
* @retval None
*/
void hal_spi_msp_deinit_dma(void *spi_handle)
{
SPI_HandleTypeDef* hspi = (SPI_HandleTypeDef*) spi_handle;
if(hspi == NULL) {
return;
}
hal_spi_msp_deinit_polling(spi_handle);
if(hspi->Instance == SPIx) {
DMA_HandleTypeDef* hdma_tx = NULL;
DMA_HandleTypeDef* hdma_rx = NULL;
get_dma_handles(&hdma_tx, &hdma_rx);
if(hdma_tx == NULL || hdma_rx == NULL) {
printf("HAL_SPI_MspInit: Invalid DMA handles. Make sure to call setDmaHandles!\n");
}
else {
/*##-3- Disable the DMA ####################################################*/
/* De-Initialize the DMA associated to transmission process */
HAL_DMA_DeInit(hdma_tx);
/* De-Initialize the DMA associated to reception process */
HAL_DMA_DeInit(hdma_rx);
}
/*##-4- Disable the NVIC for DMA ###########################################*/
HAL_NVIC_DisableIRQ(SPIx_DMA_TX_IRQn);
HAL_NVIC_DisableIRQ(SPIx_DMA_RX_IRQn);
/*##-5- Disable the NVIC for SPI ###########################################*/
HAL_NVIC_EnableIRQ(SPIx_IRQn);
}
}
void hal_spi_msp_init_polling(void *hspi) {
GPIO_InitTypeDef GPIO_InitStruct = {};
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
SPIx_SCK_GPIO_CLK_ENABLE();
SPIx_MISO_GPIO_CLK_ENABLE();
SPIx_MOSI_GPIO_CLK_ENABLE();
/* Enable SPI clock */
SPIx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* SPI SCK GPIO pin configuration */
GPIO_InitStruct.Pin = SPIx_SCK_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = SPIx_SCK_AF;
HAL_GPIO_Init(SPIx_SCK_GPIO_PORT, &GPIO_InitStruct);
/* SPI MISO GPIO pin configuration */
GPIO_InitStruct.Pin = SPIx_MISO_PIN;
GPIO_InitStruct.Alternate = SPIx_MISO_AF;
HAL_GPIO_Init(SPIx_MISO_GPIO_PORT, &GPIO_InitStruct);
/* SPI MOSI GPIO pin configuration */
GPIO_InitStruct.Pin = SPIx_MOSI_PIN;
GPIO_InitStruct.Alternate = SPIx_MOSI_AF;
HAL_GPIO_Init(SPIx_MOSI_GPIO_PORT, &GPIO_InitStruct);
}
void hal_spi_msp_deinit_polling(void *hspi) {
/*##-1- Reset peripherals ##################################################*/
SPIx_FORCE_RESET();
SPIx_RELEASE_RESET();
/*##-2- Disable peripherals and GPIO Clocks ################################*/
/* Configure SPI SCK as alternate function */
HAL_GPIO_DeInit(SPIx_SCK_GPIO_PORT, SPIx_SCK_PIN);
/* Configure SPI MISO as alternate function */
HAL_GPIO_DeInit(SPIx_MISO_GPIO_PORT, SPIx_MISO_PIN);
/* Configure SPI MOSI as alternate function */
HAL_GPIO_DeInit(SPIx_MOSI_GPIO_PORT, SPIx_MOSI_PIN);
}
void hal_spi_msp_init_interrupt(void *hspi) {
hal_spi_msp_init_polling(hspi);
// Configure the NVIC for SPI
assign_spi_user_handler(spi::SPI_1, &spi1_irq_handler, hspi);
HAL_NVIC_SetPriority(SPIx_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(SPIx_IRQn);
}
void hal_spi_msp_deinit_interrupt(void *hspi) {
hal_spi_msp_deinit_polling(hspi);
// Disable the NVIC for SPI
HAL_NVIC_DisableIRQ(SPIx_IRQn);
}