/**
  * @brief This function handles SMARTCARD interrupt request.
  * @param  hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains
  *                the configuration information for SMARTCARD module.
  * @retval None
  */
void HAL_SMARTCARD_IRQHandler(SMARTCARD_HandleTypeDef *hsc)
{
  uint32_t tmp1 = 0, tmp2 = 0; 
  
  tmp1 = hsc->Instance->SR;  
  tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_PE);

  /* SMARTCARD parity error interrupt occurred --------------------------------*/
  if(((tmp1 & SMARTCARD_FLAG_PE) != RESET) && (tmp2 != RESET))
  { 
    __HAL_SMARTCARD_CLEAR_PEFLAG(hsc);
    hsc->ErrorCode |= HAL_SMARTCARD_ERROR_PE;
  }
  
  tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_ERR);
  /* SMARTCARD frame error interrupt occurred ---------------------------------*/
  if(((tmp1 & SMARTCARD_FLAG_FE) != RESET) && (tmp2 != RESET))
  { 
    __HAL_SMARTCARD_CLEAR_FEFLAG(hsc);
    hsc->ErrorCode |= HAL_SMARTCARD_ERROR_FE;
  }
  
  tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_ERR);
  /* SMARTCARD noise error interrupt occurred ---------------------------------*/
  if(((tmp1 & SMARTCARD_FLAG_NE) != RESET) && (tmp2 != RESET))
  { 
    __HAL_SMARTCARD_CLEAR_NEFLAG(hsc);
    hsc->ErrorCode |= HAL_SMARTCARD_ERROR_NE;
  }

  tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_ERR);
  /* SMARTCARD Over-Run interrupt occurred ------------------------------------*/
  if(((tmp1 & SMARTCARD_FLAG_ORE) != RESET) && (tmp2 != RESET))
  { 
    __HAL_SMARTCARD_CLEAR_OREFLAG(hsc);
    hsc->ErrorCode |= HAL_SMARTCARD_ERROR_ORE;
  }
  
  tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_RXNE);
  /* SMARTCARD in mode Receiver ----------------------------------------------*/
  if(((tmp1 & SMARTCARD_FLAG_RXNE) != RESET) && (tmp2 != RESET))
  { 
    SMARTCARD_Receive_IT(hsc);
  }

  tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_TXE);
  /* SMARTCARD in mode Transmitter -------------------------------------------*/
  if(((tmp1 & SMARTCARD_FLAG_TXE) != RESET) && (tmp2 != RESET))
  {
    SMARTCARD_Transmit_IT(hsc);
  }

  tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_TC);
  /* SMARTCARD in mode Transmitter (transmission end) ------------------------*/
  if(((tmp1 & SMARTCARD_FLAG_TC) != RESET) && (tmp2 != RESET))
  {
    SMARTCARD_EndTransmit_IT(hsc);
  }
  
  /* Call the Error call Back in case of Errors */
  if(hsc->ErrorCode != HAL_SMARTCARD_ERROR_NONE)
  {
    /* Set the SMARTCARD state ready to be able to start again the process */
    hsc->State= HAL_SMARTCARD_STATE_READY;
    HAL_SMARTCARD_ErrorCallback(hsc);
  }
}
Exemplo n.º 2
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/**
  * @brief This function handles SMARTCARD interrupt request.
  * @param  hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains
  *                the configuration information for SMARTCARD module.
  * @retval None
  */
void HAL_SMARTCARD_IRQHandler(SMARTCARD_HandleTypeDef *hsc)
{
  uint32_t isrflags   = READ_REG(hsc->Instance->SR);
  uint32_t cr1its     = READ_REG(hsc->Instance->CR1);
  uint32_t cr3its     = READ_REG(hsc->Instance->CR3);
  uint32_t dmarequest = 0x00U;
  uint32_t errorflags = 0x00U;

  /* If no error occurs */
  errorflags = (isrflags & (uint32_t)(USART_SR_PE | USART_SR_FE | USART_SR_ORE | USART_SR_NE));
  if(errorflags == RESET)
  {
    /* SMARTCARD in mode Receiver -------------------------------------------------*/
    if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
    {
      SMARTCARD_Receive_IT(hsc);
      return;
    }
  }

  /* If some errors occur */
  if((errorflags != RESET) && (((cr3its & USART_CR3_EIE) != RESET) || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != RESET)))
  {
    /* SMARTCARD parity error interrupt occurred ---------------------------*/
    if(((isrflags & SMARTCARD_FLAG_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET))
    { 
      hsc->ErrorCode |= HAL_SMARTCARD_ERROR_PE;
    }

    /* SMARTCARD frame error interrupt occurred ----------------------------*/
    if(((isrflags & SMARTCARD_FLAG_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
    { 
      hsc->ErrorCode |= HAL_SMARTCARD_ERROR_FE;
    }

    /* SMARTCARD noise error interrupt occurred ----------------------------*/
    if(((isrflags & SMARTCARD_FLAG_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
    { 
      hsc->ErrorCode |= HAL_SMARTCARD_ERROR_NE;
    }

    /* SMARTCARD Over-Run interrupt occurred -------------------------------*/
    if(((isrflags & SMARTCARD_FLAG_ORE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
    { 
      hsc->ErrorCode |= HAL_SMARTCARD_ERROR_ORE;
    }
    /* Call the Error call Back in case of Errors */
    if(hsc->ErrorCode != HAL_SMARTCARD_ERROR_NONE)
    {
      /* SMARTCARD in mode Receiver -----------------------------------------------*/
      if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
      {
        SMARTCARD_Receive_IT(hsc);
      }

      /* If Overrun error occurs, or if any error occurs in DMA mode reception,
         consider error as blocking */
      dmarequest = HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR);
      if(((hsc->ErrorCode & HAL_SMARTCARD_ERROR_ORE) != RESET) || dmarequest)
      {
        /* Blocking error : transfer is aborted
          Set the SMARTCARD state ready to be able to start again the process,
          Disable Rx Interrupts, and disable Rx DMA request, if ongoing */
        SMARTCARD_EndRxTransfer(hsc);
        /* Disable the SMARTCARD DMA Rx request if enabled */
        if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR))
        {
          CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAR);

          /* Abort the SMARTCARD DMA Rx channel */
          if(hsc->hdmarx != NULL)
          {
            /* Set the SMARTCARD DMA Abort callback : 
              will lead to call HAL_SMARTCARD_ErrorCallback() at end of DMA abort procedure */
            hsc->hdmarx->XferAbortCallback = SMARTCARD_DMAAbortOnError;

           if(HAL_DMA_Abort_IT(hsc->hdmarx) != HAL_OK)
            {
              /* Call Directly XferAbortCallback function in case of error */
              hsc->hdmarx->XferAbortCallback(hsc->hdmarx);
            }
          }
          else
          {
            /* Call user error callback */
            HAL_SMARTCARD_ErrorCallback(hsc);
          }
        }
        else
        {
          /* Call user error callback */
          HAL_SMARTCARD_ErrorCallback(hsc);
        }
      }
      else
      {
        /* Call user error callback */
        HAL_SMARTCARD_ErrorCallback(hsc);
        hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE;
      }
    }
    return;
  } /* End if some error occurs */
  
  /* SMARTCARD in mode Transmitter -------------------------------------------*/
  if(((isrflags & SMARTCARD_FLAG_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET))
  {
    SMARTCARD_Transmit_IT(hsc);
    return;
  }
  
  /* SMARTCARD in mode Transmitter (transmission end) ------------------------*/
  if(((isrflags & SMARTCARD_FLAG_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET))
  {
    SMARTCARD_EndTransmit_IT(hsc);
    return;
  }
}