stm32l4xx_hal_sd_ex.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal.h"

#if defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx)

#ifdef HAL_SD_MODULE_ENABLED

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
extern uint32_t SD_HighSpeed(SD_HandleTypeDef *hsd);
/* Exported functions --------------------------------------------------------*/
uint32_t HAL_SDEx_HighSpeed(SD_HandleTypeDef *hsd)
{
  return SD_HighSpeed (hsd);
}

__weak void HAL_SDEx_DriveTransceiver_1_8V_Callback(FlagStatus status)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(status);

  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_SD_EnableTransciver could be implemented in the user file
   */
}

HAL_StatusTypeDef HAL_SDEx_ConfigDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t *pDataBuffer0, uint32_t *pDataBuffer1, uint32_t BufferSize)
{
  if(hsd->State == HAL_SD_STATE_READY)
  {
    hsd->Instance->IDMABASE0= (uint32_t) pDataBuffer0;
    hsd->Instance->IDMABASE1= (uint32_t) pDataBuffer1;
    hsd->Instance->IDMABSIZE= (uint32_t) (BLOCKSIZE * BufferSize);

    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

HAL_StatusTypeDef HAL_SDEx_ReadBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks)
{
  SDMMC_DataInitTypeDef config;
  uint32_t errorstate;
  uint32_t DmaBase0_reg, DmaBase1_reg;
  uint32_t add = BlockAdd;

  if(hsd->State == HAL_SD_STATE_READY)
  {
    if((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr))
    {
      hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
      return HAL_ERROR;
    }

    DmaBase0_reg = hsd->Instance->IDMABASE0;
    DmaBase1_reg = hsd->Instance->IDMABASE1;
    if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
    {
      hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
      return HAL_ERROR;
    }

    /* Initialize data control register */
    hsd->Instance->DCTRL = 0;
    /* Clear old Flags*/
    __HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_DATA_FLAGS);

    hsd->ErrorCode = HAL_SD_ERROR_NONE;
    hsd->State = HAL_SD_STATE_BUSY;

    if(hsd->SdCard.CardType != CARD_SDHC_SDXC)
    {
      add *= 512U;
    }

    /* Set Block Size for Card */
    errorstate = SDMMC_CmdBlockLength(hsd->Instance, BLOCKSIZE);
    if(errorstate != HAL_SD_ERROR_NONE)
    {
      /* Clear all the static flags */
      __HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_FLAGS);
      hsd->ErrorCode |= errorstate;
      hsd->State = HAL_SD_STATE_READY;
      return HAL_ERROR;
    }

    /* Configure the SD DPSM (Data Path State Machine) */
    config.DataTimeOut   = SDMMC_DATATIMEOUT;
    config.DataLength    = BLOCKSIZE * NumberOfBlocks;
    config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
    config.TransferDir   = SDMMC_TRANSFER_DIR_TO_SDMMC;
    config.TransferMode  = SDMMC_TRANSFER_MODE_BLOCK;
    config.DPSM          = SDMMC_DPSM_DISABLE;
    (void)SDMMC_ConfigData(hsd->Instance, &config);

    hsd->Instance->DCTRL |= SDMMC_DCTRL_FIFORST;

    __SDMMC_CMDTRANS_ENABLE( hsd->Instance);

    hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;

    __HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_RXOVERR | SDMMC_IT_DATAEND | SDMMC_IT_IDMABTC));

    /* Read Blocks in DMA mode */
    hsd->Context = (SD_CONTEXT_READ_MULTIPLE_BLOCK | SD_CONTEXT_DMA);

    /* Read Multi Block command */
    errorstate = SDMMC_CmdReadMultiBlock(hsd->Instance, add);
    if(errorstate != HAL_SD_ERROR_NONE)
    {
      hsd->State = HAL_SD_STATE_READY;
      hsd->ErrorCode |= errorstate;
      return HAL_ERROR;
    }

    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }

}

HAL_StatusTypeDef HAL_SDEx_WriteBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks)
{
  SDMMC_DataInitTypeDef config;
  uint32_t errorstate;
  uint32_t DmaBase0_reg, DmaBase1_reg;
  uint32_t add = BlockAdd;

  if(hsd->State == HAL_SD_STATE_READY)
  {
    if((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr))
    {
      hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
      return HAL_ERROR;
    }

    DmaBase0_reg = hsd->Instance->IDMABASE0;
    DmaBase1_reg = hsd->Instance->IDMABASE1;
    if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
    {
      hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
      return HAL_ERROR;
    }

    /* Initialize data control register */
    hsd->Instance->DCTRL = 0;

    hsd->ErrorCode = HAL_SD_ERROR_NONE;

    hsd->State = HAL_SD_STATE_BUSY;

    if(hsd->SdCard.CardType != CARD_SDHC_SDXC)
    {
      add *= 512U;
    }

    /* Set Block Size for Card */
    errorstate = SDMMC_CmdBlockLength(hsd->Instance, BLOCKSIZE);
    if(errorstate != HAL_SD_ERROR_NONE)
    {
      /* Clear all the static flags */
      __HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_FLAGS);
      hsd->ErrorCode |= errorstate;
      hsd->State = HAL_SD_STATE_READY;
      return HAL_ERROR;
    }

    /* Configure the SD DPSM (Data Path State Machine) */
    config.DataTimeOut   = SDMMC_DATATIMEOUT;
    config.DataLength    = BLOCKSIZE * NumberOfBlocks;
    config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
    config.TransferDir   = SDMMC_TRANSFER_DIR_TO_CARD;
    config.TransferMode  = SDMMC_TRANSFER_MODE_BLOCK;
    config.DPSM          = SDMMC_DPSM_DISABLE;
    (void)SDMMC_ConfigData(hsd->Instance, &config);

    __SDMMC_CMDTRANS_ENABLE( hsd->Instance);

    hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;

    __HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_TXUNDERR | SDMMC_IT_DATAEND | SDMMC_IT_IDMABTC));

    /* Write Blocks in DMA mode */
    hsd->Context = (SD_CONTEXT_WRITE_MULTIPLE_BLOCK | SD_CONTEXT_DMA);

    /* Write Multi Block command */
    errorstate = SDMMC_CmdWriteMultiBlock(hsd->Instance, add);
    if(errorstate != HAL_SD_ERROR_NONE)
    {
      hsd->State = HAL_SD_STATE_READY;
      hsd->ErrorCode |= errorstate;
      return HAL_ERROR;
    }

    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}


HAL_StatusTypeDef HAL_SDEx_ChangeDMABuffer(SD_HandleTypeDef *hsd, HAL_SDEx_DMABuffer_MemoryTypeDef Buffer, uint32_t *pDataBuffer)
{
  if(Buffer == SD_DMA_BUFFER0)
  {
    /* change the buffer0 address */
    hsd->Instance->IDMABASE0 = (uint32_t)pDataBuffer;
  }
  else
  {
    /* change the memory1 address */
    hsd->Instance->IDMABASE1 = (uint32_t)pDataBuffer;
  }

  return HAL_OK;
}

__weak void HAL_SDEx_Read_DMADoubleBuffer0CpltCallback(SD_HandleTypeDef *hsd)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hsd);

  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SDEx_Read_DMADoubleBuffer0CpltCallback can be implemented in the user file
   */
}

__weak void HAL_SDEx_Read_DMADoubleBuffer1CpltCallback(SD_HandleTypeDef *hsd)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hsd);

  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SDEx_Read_DMADoubleBuffer1CpltCallback can be implemented in the user file
   */
}

__weak void HAL_SDEx_Write_DMADoubleBuffer0CpltCallback(SD_HandleTypeDef *hsd)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hsd);

  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SDEx_Write_DMADoubleBuffer0CpltCallback can be implemented in the user file
   */
}

__weak void HAL_SDEx_Write_DMADoubleBuffer1CpltCallback(SD_HandleTypeDef *hsd)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hsd);

  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SDEx_Write_DMADoubleBuffer0CpltCallback can be implemented in the user file
   */
}

#endif /* HAL_SD_MODULE_ENABLED */

#endif /* STM32L4R5xx || STM32L4R7xx || STM32L4R9xx || STM32L4S5xx || STM32L4S7xx || STM32L4S9xx */

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