/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    spi.c
  * @brief   This file provides code for the configuration
  *          of the SPI instances.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "spi.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

SPI_HandleTypeDef hspi4;
DMA_HandleTypeDef hdma_spi4_tx;

/* SPI4 init function */
void MX_SPI4_Init(void)
{

  /* USER CODE BEGIN SPI4_Init 0 */

  /* USER CODE END SPI4_Init 0 */

  /* USER CODE BEGIN SPI4_Init 1 */

  /* USER CODE END SPI4_Init 1 */
  hspi4.Instance = SPI4;
  hspi4.Init.Mode = SPI_MODE_MASTER;
  hspi4.Init.Direction = SPI_DIRECTION_1LINE;
  hspi4.Init.DataSize = SPI_DATASIZE_9BIT;
  hspi4.Init.CLKPolarity = SPI_POLARITY_LOW;
  hspi4.Init.CLKPhase = SPI_PHASE_1EDGE;
  hspi4.Init.NSS = SPI_NSS_HARD_OUTPUT;
  hspi4.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;
  hspi4.Init.FirstBit = SPI_FIRSTBIT_MSB;
  hspi4.Init.TIMode = SPI_TIMODE_DISABLE;
  hspi4.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
  hspi4.Init.CRCPolynomial = 0x0;
  hspi4.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
  hspi4.Init.NSSPolarity = SPI_NSS_POLARITY_LOW;
  hspi4.Init.FifoThreshold = SPI_FIFO_THRESHOLD_01DATA;
  hspi4.Init.TxCRCInitializationPattern = SPI_CRC_INITIALIZATION_ALL_ZERO_PATTERN;
  hspi4.Init.RxCRCInitializationPattern = SPI_CRC_INITIALIZATION_ALL_ZERO_PATTERN;
  hspi4.Init.MasterSSIdleness = SPI_MASTER_SS_IDLENESS_00CYCLE;
  hspi4.Init.MasterInterDataIdleness = SPI_MASTER_INTERDATA_IDLENESS_00CYCLE;
  hspi4.Init.MasterReceiverAutoSusp = SPI_MASTER_RX_AUTOSUSP_DISABLE;
  hspi4.Init.MasterKeepIOState = SPI_MASTER_KEEP_IO_STATE_DISABLE;
  hspi4.Init.IOSwap = SPI_IO_SWAP_DISABLE;
  if (HAL_SPI_Init(&hspi4) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN SPI4_Init 2 */

  /* USER CODE END SPI4_Init 2 */

}

void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
  if(spiHandle->Instance==SPI4)
  {
  /* USER CODE BEGIN SPI4_MspInit 0 */

  /* USER CODE END SPI4_MspInit 0 */

  /** Initializes the peripherals clock
  */
    PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_SPI4;
    PeriphClkInitStruct.Spi45ClockSelection = RCC_SPI45CLKSOURCE_HSE;
    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
    {
      Error_Handler();
    }

    /* SPI4 clock enable */
    __HAL_RCC_SPI4_CLK_ENABLE();

    __HAL_RCC_GPIOE_CLK_ENABLE();
    /**SPI4 GPIO Configuration
    PE11     ------> SPI4_NSS
    PE12     ------> SPI4_SCK
    PE14     ------> SPI4_MOSI
    */
    GPIO_InitStruct.Pin = SPI4_NSS_DISPLAY_Pin|SPI4_SCK_DISPLAY_Pin|SPI4_MOSI_DISPLAY_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF5_SPI4;
    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);

    /* SPI4 DMA Init */
    /* SPI4_TX Init */
    hdma_spi4_tx.Instance = DMA1_Stream0;
    hdma_spi4_tx.Init.Request = DMA_REQUEST_SPI4_TX;
    hdma_spi4_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_spi4_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_spi4_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_spi4_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
    hdma_spi4_tx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
    hdma_spi4_tx.Init.Mode = DMA_NORMAL;
    hdma_spi4_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_spi4_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_spi4_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(spiHandle,hdmatx,hdma_spi4_tx);

    /* SPI4 interrupt Init */
    HAL_NVIC_SetPriority(SPI4_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(SPI4_IRQn);
  /* USER CODE BEGIN SPI4_MspInit 1 */

  /* USER CODE END SPI4_MspInit 1 */
  }
}

void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
{

  if(spiHandle->Instance==SPI4)
  {
  /* USER CODE BEGIN SPI4_MspDeInit 0 */

  /* USER CODE END SPI4_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_SPI4_CLK_DISABLE();

    /**SPI4 GPIO Configuration
    PE11     ------> SPI4_NSS
    PE12     ------> SPI4_SCK
    PE14     ------> SPI4_MOSI
    */
    HAL_GPIO_DeInit(GPIOE, SPI4_NSS_DISPLAY_Pin|SPI4_SCK_DISPLAY_Pin|SPI4_MOSI_DISPLAY_Pin);

    /* SPI4 DMA DeInit */
    HAL_DMA_DeInit(spiHandle->hdmatx);

    /* SPI4 interrupt Deinit */
    HAL_NVIC_DisableIRQ(SPI4_IRQn);
  /* USER CODE BEGIN SPI4_MspDeInit 1 */

  /* USER CODE END SPI4_MspDeInit 1 */
  }
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */
