/**
* @brief Sends an amount of data in non-blocking mode.
* @param hirda: Pointer to a IRDA_HandleTypeDef structure that contains
* the configuration information for the specified IRDA module.
* @param pData: Pointer to data buffer
* @param Size: Amount of data to be sent
* @retval HAL status
*/
HAL_StatusTypeDef HAL_IRDA_Transmit_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
{
uint32_t *tmp = 0;
uint32_t tmp_state = 0;
tmp_state = hirda->State;
if((tmp_state == HAL_IRDA_STATE_READY) || (tmp_state == HAL_IRDA_STATE_BUSY_RX))
{
if((pData == NULL) || (Size == 0))
{
return HAL_ERROR;
}
/* Process Locked */
__HAL_LOCK(hirda);
hirda->pTxBuffPtr = pData;
hirda->TxXferSize = Size;
hirda->TxXferCount = Size;
hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
{
hirda->State = HAL_IRDA_STATE_BUSY_TX_RX;
}
else
{
hirda->State = HAL_IRDA_STATE_BUSY_TX;
}
/* Set the IRDA DMA transfer complete callback */
hirda->hdmatx->XferCpltCallback = IRDA_DMATransmitCplt;
/* Set the IRDA DMA half transfert complete callback */
hirda->hdmatx->XferHalfCpltCallback = IRDA_DMATransmitHalfCplt;
/* Set the DMA error callback */
hirda->hdmatx->XferErrorCallback = IRDA_DMAError;
/* Enable the IRDA transmit DMA channel */
tmp = (uint32_t*)&pData;
HAL_DMA_Start_IT(hirda->hdmatx, *(uint32_t*)tmp, (uint32_t)&hirda->Instance->DR, Size);
/* Clear the TC flag in the SR register by writing 0 to it */
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_TC);
/* Enable the DMA transfer for transmit request by setting the DMAT bit
in the USART CR3 register */
SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
/* Process Unlocked */
__HAL_UNLOCK(hirda);
return HAL_OK;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief Send an amount of data in DMA mode.
* @param hirda: Pointer to a IRDA_HandleTypeDef structure that contains
* the configuration information for the specified IRDA module.
* @param pData: pointer to data buffer.
* @param Size: amount of data to be sent.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_IRDA_Transmit_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
{
uint32_t *tmp;
/* Check that a Tx process is not already ongoing */
if(hirda->gState == HAL_IRDA_STATE_READY)
{
if((pData == NULL) || (Size == 0))
{
return HAL_ERROR;
}
/* Process Locked */
__HAL_LOCK(hirda);
hirda->pTxBuffPtr = pData;
hirda->TxXferSize = Size;
hirda->TxXferCount = Size;
hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
hirda->gState = HAL_IRDA_STATE_BUSY_TX;
/* Set the IRDA DMA transfer complete callback */
hirda->hdmatx->XferCpltCallback = IRDA_DMATransmitCplt;
/* Set the IRDA DMA half transfer complete callback */
hirda->hdmatx->XferHalfCpltCallback = IRDA_DMATransmitHalfCplt;
/* Set the DMA error callback */
hirda->hdmatx->XferErrorCallback = IRDA_DMAError;
/* Enable the IRDA transmit DMA channel */
tmp = (uint32_t*)&pData;
HAL_DMA_Start_IT(hirda->hdmatx, *(uint32_t*)tmp, (uint32_t)&hirda->Instance->TDR, Size);
/* Clear the TC flag in the ICR register */
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_CLEAR_TCF);
/* Enable the DMA transfer for transmit request by setting the DMAT bit
in the USART CR3 register */
hirda->Instance->CR3 |= USART_CR3_DMAT;
/* Process Unlocked */
__HAL_UNLOCK(hirda);
return HAL_OK;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief This function handles IRDA interrupt request.
* @param hirda: IRDA handle
* @retval None
*/
void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda)
{
uint32_t tmp1 = 0, tmp2 =0;
tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_PE);
tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_PE);
/* IRDA parity error interrupt occured -------------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_PE);
hirda->ErrorCode |= HAL_IRDA_ERROR_PE;
}
tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_FE);
tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR);
/* IRDA frame error interrupt occured --------------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_FE);
hirda->ErrorCode |= HAL_IRDA_ERROR_FE;
}
tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_NE);
tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR);
/* IRDA noise error interrupt occured --------------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_NE);
hirda->ErrorCode |= HAL_IRDA_ERROR_NE;
}
tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_ORE);
tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR);
/* IRDA Over-Run interrupt occured -----------------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_ORE);
hirda->ErrorCode |= HAL_IRDA_ERROR_ORE;
}
/* Call the Error call Back in case of Errors */
if(hirda->ErrorCode != HAL_IRDA_ERROR_NONE)
{
/* Set the IRDA state ready to be able to start again the process */
hirda->State = HAL_IRDA_STATE_READY;
HAL_IRDA_ErrorCallback(hirda);
}
tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_RXNE);
tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_RXNE);
/* IRDA in mode Receiver ---------------------------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
IRDA_Receive_IT(hirda);
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_IT_RXNE);
}
tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_TC);
tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TC);
/* IRDA in mode Transmitter ------------------------------------------------*/
if((tmp1 != RESET) &&(tmp2 != RESET))
{
IRDA_Transmit_IT(hirda);
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_IT_TC);
}
}
