BlueSCSI-v2/lib/SCSI2SD/STM32CubeMX/SCSI2SD-V6/Src/sdio.c

/**
  ******************************************************************************
  * File Name          : SDIO.c
  * Description        : This file provides code for the configuration
  *                      of the SDIO instances.
  ******************************************************************************
  *
  * COPYRIGHT(c) 2016 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "sdio.h"

#include "gpio.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

SD_HandleTypeDef hsd;
HAL_SD_CardInfoTypedef SDCardInfo;
DMA_HandleTypeDef hdma_sdio_tx;
DMA_HandleTypeDef hdma_sdio_rx;

/* SDIO init function */

void MX_SDIO_SD_Init(void)
{

  hsd.Instance = SDIO;
  hsd.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
  hsd.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
  hsd.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_DISABLE;
  hsd.Init.BusWide = SDIO_BUS_WIDE_1B;
  hsd.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
  hsd.Init.ClockDiv = 0;

}

void HAL_SD_MspInit(SD_HandleTypeDef* hsd)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(hsd->Instance==SDIO)
  {
  /* USER CODE BEGIN SDIO_MspInit 0 */

  /* USER CODE END SDIO_MspInit 0 */
    /* Peripheral clock enable */
    __SDIO_CLK_ENABLE();
  
    /**SDIO GPIO Configuration    
    PC8     ------> SDIO_D0
    PC9     ------> SDIO_D1
    PC10     ------> SDIO_D2
    PC11     ------> SDIO_D3
    PC12     ------> SDIO_CK
    PD2     ------> SDIO_CMD 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP; // MM
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    // No pullup on CLK
    GPIO_InitStruct.Pin = GPIO_PIN_12;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_2;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP; // MM
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

    /* Peripheral DMA init*/
  
    hdma_sdio_tx.Instance = DMA2_Stream3;
    hdma_sdio_tx.Init.Channel = DMA_CHANNEL_4;
    hdma_sdio_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_sdio_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_sdio_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_sdio_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
    hdma_sdio_tx.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
    hdma_sdio_tx.Init.Mode = DMA_PFCTRL; // TODO MM. This is necessary or SDIO doesn't work
    hdma_sdio_tx.Init.Priority = DMA_PRIORITY_VERY_HIGH; // TODO MM Prevent underruns
    hdma_sdio_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
    hdma_sdio_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
    hdma_sdio_tx.Init.MemBurst = DMA_MBURST_INC4;
    hdma_sdio_tx.Init.PeriphBurst = DMA_PBURST_INC4;
    HAL_DMA_Init(&hdma_sdio_tx);

    __HAL_LINKDMA(hsd,hdmatx,hdma_sdio_tx);

    hdma_sdio_rx.Instance = DMA2_Stream6;
    hdma_sdio_rx.Init.Channel = DMA_CHANNEL_4;
    hdma_sdio_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_sdio_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_sdio_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_sdio_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
    hdma_sdio_rx.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
    hdma_sdio_rx.Init.Mode = DMA_PFCTRL; // TODO MM. This is necessary or SDIO doesn't work
    hdma_sdio_rx.Init.Priority = DMA_PRIORITY_VERY_HIGH; // TODO MM Prevent underruns
    hdma_sdio_rx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
    hdma_sdio_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
    hdma_sdio_rx.Init.MemBurst = DMA_MBURST_INC4;
    hdma_sdio_rx.Init.PeriphBurst = DMA_PBURST_INC4;
    HAL_DMA_Init(&hdma_sdio_rx);

    __HAL_LINKDMA(hsd,hdmarx,hdma_sdio_rx);

    /* Peripheral interrupt init*/
	HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
    HAL_NVIC_SetPriority(SDIO_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(SDIO_IRQn);
  /* USER CODE BEGIN SDIO_MspInit 1 */

  /* USER CODE END SDIO_MspInit 1 */
  }
}

void HAL_SD_MspDeInit(SD_HandleTypeDef* hsd)
{

  if(hsd->Instance==SDIO)
  {
  /* USER CODE BEGIN SDIO_MspDeInit 0 */

  /* USER CODE END SDIO_MspDeInit 0 */
    /* Peripheral clock disable */
    __SDIO_CLK_DISABLE();
  
    /**SDIO GPIO Configuration    
    PC8     ------> SDIO_D0
    PC9     ------> SDIO_D1
    PC10     ------> SDIO_D2
    PC11     ------> SDIO_D3
    PC12     ------> SDIO_CK
    PD2     ------> SDIO_CMD 
    */
    HAL_GPIO_DeInit(GPIOC, GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11 
                          |GPIO_PIN_12);

    HAL_GPIO_DeInit(GPIOD, GPIO_PIN_2);

    /* Peripheral DMA DeInit*/
    HAL_DMA_DeInit(hsd->hdmatx);
    HAL_DMA_DeInit(hsd->hdmarx);

    /* Peripheral interrupt Deinit*/
    HAL_NVIC_DisableIRQ(SDIO_IRQn);

  }
  /* USER CODE BEGIN SDIO_MspDeInit 1 */

  /* USER CODE END SDIO_MspDeInit 1 */
} 

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/