Perioheral Abort management

Functions
HAL_StatusTypeDef	HAL_MMC_Abort (MMC_HandleTypeDef *hmmc)
	Abort the current transfer and disable the MMC. More...
HAL_StatusTypeDef	HAL_MMC_Abort_IT (MMC_HandleTypeDef *hmmc)
	Abort the current transfer and disable the MMC (IT mode). More...

Detailed Description

Function Documentation

HAL_MMC_Abort()

HAL_StatusTypeDef HAL_MMC_Abort

(

MMC_HandleTypeDef *

hmmc

)

Abort the current transfer and disable the MMC.

Parameters

hmmc	pointer to a MMC_HandleTypeDef structure that contains the configuration information for MMC module.

Return values

HAL

status

Definition at line 2587 of file stm32l4xx_hal_mmc.c.

{
  HAL_MMC_CardStateTypeDef CardState;

  /* DIsable All interrupts */
  __HAL_MMC_DISABLE_IT(hmmc, SDMMC_IT_DATAEND | SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT|\
                           SDMMC_IT_TXUNDERR| SDMMC_IT_RXOVERR);

  /* Clear All flags */
  __HAL_MMC_CLEAR_FLAG(hmmc, SDMMC_STATIC_DATA_FLAGS);

#if !defined(STM32L4R5xx) && !defined(STM32L4R7xx) && !defined(STM32L4R9xx) && !defined(STM32L4S5xx) && !defined(STM32L4S7xx) && !defined(STM32L4S9xx)
  if((hmmc->hdmatx != NULL) || (hmmc->hdmarx != NULL))
  {
    /* Disable the MMC DMA request */
    hmmc->Instance->DCTRL &= (uint32_t)~((uint32_t)SDMMC_DCTRL_DMAEN);
    
    /* Abort the MMC DMA Tx Stream */
    if(hmmc->hdmatx != NULL)
    {
      if(HAL_DMA_Abort(hmmc->hdmatx) != HAL_OK)
      {
        hmmc->ErrorCode |= HAL_MMC_ERROR_DMA;
      }
    }
    /* Abort the MMC DMA Rx Stream */
    if(hmmc->hdmarx != NULL)
    {
      if(HAL_DMA_Abort(hmmc->hdmarx) != HAL_OK)
      {
        hmmc->ErrorCode |= HAL_MMC_ERROR_DMA;
      }
    }
  }
#else
  /* If IDMA Context, disable Internal DMA */
  hmmc->Instance->IDMACTRL = SDMMC_DISABLE_IDMA;
#endif

  hmmc->State = HAL_MMC_STATE_READY;

  /* Initialize the MMC operation */
  hmmc->Context = MMC_CONTEXT_NONE;

  CardState = HAL_MMC_GetCardState(hmmc);
  if((CardState == HAL_MMC_CARD_RECEIVING) || (CardState == HAL_MMC_CARD_SENDING))
  {
    hmmc->ErrorCode = SDMMC_CmdStopTransfer(hmmc->Instance);
  }
  if(hmmc->ErrorCode != HAL_MMC_ERROR_NONE)
  {
    return HAL_ERROR;
  }
  return HAL_OK;
}

HAL_MMC_Abort_IT()

HAL_StatusTypeDef HAL_MMC_Abort_IT

(

MMC_HandleTypeDef *

hmmc

)

Abort the current transfer and disable the MMC (IT mode).

Parameters

hmmc	pointer to a MMC_HandleTypeDef structure that contains the configuration information for MMC module.

Return values

HAL

status

Definition at line 2649 of file stm32l4xx_hal_mmc.c.

{
  HAL_MMC_CardStateTypeDef CardState;

  /* DIsable All interrupts */
  __HAL_MMC_DISABLE_IT(hmmc, SDMMC_IT_DATAEND | SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT|\
                           SDMMC_IT_TXUNDERR| SDMMC_IT_RXOVERR);

#if defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx)
  /* If IDMA Context, disable Internal DMA */
  hmmc->Instance->IDMACTRL = SDMMC_DISABLE_IDMA;
#endif

  /* Clear All flags */
  __HAL_MMC_CLEAR_FLAG(hmmc, SDMMC_STATIC_DATA_FLAGS);

#if !defined(STM32L4R5xx) && !defined(STM32L4R7xx) && !defined(STM32L4R9xx) && !defined(STM32L4S5xx) && !defined(STM32L4S7xx) && !defined(STM32L4S9xx)
  if((hmmc->hdmatx != NULL) || (hmmc->hdmarx != NULL))
  {
    /* Disable the MMC DMA request */
    hmmc->Instance->DCTRL &= (uint32_t)~((uint32_t)SDMMC_DCTRL_DMAEN);
    
    /* Abort the MMC DMA Tx Stream */
    if(hmmc->hdmatx != NULL)
    {
      hmmc->hdmatx->XferAbortCallback =  MMC_DMATxAbort;
      if(HAL_DMA_Abort_IT(hmmc->hdmatx) != HAL_OK)
      {
        hmmc->hdmatx = NULL;
      }
    }
    /* Abort the MMC DMA Rx Stream */
    if(hmmc->hdmarx != NULL)
    {
      hmmc->hdmarx->XferAbortCallback =  MMC_DMARxAbort;
      if(HAL_DMA_Abort_IT(hmmc->hdmarx) != HAL_OK)
      {
        hmmc->hdmarx = NULL;
      }
    }
  }
  
  /* No transfer ongoing on both DMA channels*/
  if((hmmc->hdmatx == NULL) && (hmmc->hdmarx == NULL))
  {
#endif
    CardState = HAL_MMC_GetCardState(hmmc);
    hmmc->State = HAL_MMC_STATE_READY;

    if((CardState == HAL_MMC_CARD_RECEIVING) || (CardState == HAL_MMC_CARD_SENDING))
    {
      hmmc->ErrorCode = SDMMC_CmdStopTransfer(hmmc->Instance);
    }
    if(hmmc->ErrorCode != HAL_MMC_ERROR_NONE)
    {
      return HAL_ERROR;
    }
    else
    {
#if defined (USE_HAL_MMC_REGISTER_CALLBACKS) && (USE_HAL_MMC_REGISTER_CALLBACKS == 1U)
      hmmc->AbortCpltCallback(hmmc);
#else
      HAL_MMC_AbortCallback(hmmc);
#endif
#if !defined(STM32L4R5xx) && !defined(STM32L4R7xx) && !defined(STM32L4R9xx) && !defined(STM32L4S5xx) && !defined(STM32L4S7xx) && !defined(STM32L4S9xx)
    }
#endif
  }

  return HAL_OK;
}