/**
* @brief Aborts the DMA Transfer in Interrupt mode.
* @param hdma : pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA Channel.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DMA_Abort_IT(DMA_HandleTypeDef *hdma)
{
HAL_StatusTypeDef status = HAL_OK;
if(HAL_DMA_STATE_BUSY != hdma->State)
{
/* no transfer ongoing */
hdma->ErrorCode = HAL_DMA_ERROR_NO_XFER;
status = HAL_ERROR;
}
else
{
/* Disable DMA IT */
__HAL_DMA_DISABLE_IT(hdma, (DMA_IT_TC | DMA_IT_HT | DMA_IT_TE));
/* Disable the channel */
__HAL_DMA_DISABLE(hdma);
/* Clear all flags */
__HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_GI_FLAG_INDEX(hdma));
/* Change the DMA state */
hdma->State = HAL_DMA_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hdma);
/* Call User Abort callback */
if(hdma->XferAbortCallback != NULL)
{
hdma->XferAbortCallback(hdma);
}
}
return status;
}
/**
* @brief DeInitialize the DMA peripheral.
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA Channel.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma)
{
/* Check the DMA handle allocation */
if(hdma == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance));
/* Check the DMA peripheral state */
if(hdma->State == HAL_DMA_STATE_BUSY)
{
return HAL_ERROR;
}
/* Disable the selected DMA Channelx */
__HAL_DMA_DISABLE(hdma);
/* Reset DMA Channel control register */
hdma->Instance->CCR = 0;
/* Reset DMA Channel Number of Data to Transfer register */
hdma->Instance->CNDTR = 0;
/* Reset DMA Channel peripheral address register */
hdma->Instance->CPAR = 0;
/* Reset DMA Channel memory address register */
hdma->Instance->CMAR = 0;
/* Clear all flags */
__HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_GI_FLAG_INDEX(hdma));
__HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma));
__HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma));
__HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
/* Reset DMA channel selection register */
if (hdma->Instance == DMA1_Channel1)
{
/*Reset DMA request*/
DMA1_CSELR->CSELR &= ~DMA_CSELR_C1S;
}
else if (hdma->Instance == DMA1_Channel2)
{
/*Reset DMA request*/
DMA1_CSELR->CSELR &= ~DMA_CSELR_C2S;
}
else if (hdma->Instance == DMA1_Channel3)
{
/*Reset DMA request*/
DMA1_CSELR->CSELR &= ~DMA_CSELR_C3S;
}
else if (hdma->Instance == DMA1_Channel4)
{
/*Reset DMA request*/
DMA1_CSELR->CSELR &= ~DMA_CSELR_C4S;
}
else if (hdma->Instance == DMA1_Channel5)
{
/*Reset DMA request*/
DMA1_CSELR->CSELR &= ~DMA_CSELR_C5S;
}
else if (hdma->Instance == DMA1_Channel6)
{
/*Reset DMA request*/
DMA1_CSELR->CSELR &= ~DMA_CSELR_C6S;
}
else if (hdma->Instance == DMA1_Channel7)
{
/*Reset DMA request*/
DMA1_CSELR->CSELR &= ~DMA_CSELR_C7S;
}
else if (hdma->Instance == DMA2_Channel1)
{
/*Reset DMA request*/
DMA2_CSELR->CSELR &= ~DMA_CSELR_C1S;
}
else if (hdma->Instance == DMA2_Channel2)
{
/*Reset DMA request*/
DMA2_CSELR->CSELR &= ~DMA_CSELR_C2S;
}
else if (hdma->Instance == DMA2_Channel3)
{
/*Reset DMA request*/
DMA2_CSELR->CSELR &= ~DMA_CSELR_C3S;
}
else if (hdma->Instance == DMA2_Channel4)
{
/*Reset DMA request*/
DMA2_CSELR->CSELR &= ~DMA_CSELR_C4S;
}
else if (hdma->Instance == DMA2_Channel5)
{
/*Reset DMA request*/
DMA2_CSELR->CSELR &= ~DMA_CSELR_C5S;
}
else if (hdma->Instance == DMA2_Channel6)
{
/*Reset DMA request*/
DMA2_CSELR->CSELR &= ~DMA_CSELR_C6S;
}
else if (hdma->Instance == DMA2_Channel7)
{
/*Reset DMA request*/
DMA2_CSELR->CSELR &= ~DMA_CSELR_C7S;
}
/* Initialize the error code */
hdma->ErrorCode = HAL_DMA_ERROR_NONE;
/* Initialize the DMA state */
hdma->State = HAL_DMA_STATE_RESET;
/* Release Lock */
__HAL_UNLOCK(hdma);
return HAL_OK;
}
