stm32f4xx_hal_irda.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"


 
#ifdef HAL_IRDA_MODULE_ENABLED
 
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
void IRDA_InitCallbacksToDefault(IRDA_HandleTypeDef *hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACKS */
static void IRDA_SetConfig(IRDA_HandleTypeDef *hirda);
static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda);
static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda);
static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda);
static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma);
static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma);
static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma);
static void IRDA_DMAError(DMA_HandleTypeDef *hdma);
static void IRDA_DMAAbortOnError(DMA_HandleTypeDef *hdma);
static void IRDA_DMATxAbortCallback(DMA_HandleTypeDef *hdma);
static void IRDA_DMARxAbortCallback(DMA_HandleTypeDef *hdma);
static void IRDA_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
static void IRDA_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout);
static void IRDA_EndTxTransfer(IRDA_HandleTypeDef *hirda);
static void IRDA_EndRxTransfer(IRDA_HandleTypeDef *hirda);
 
/* Exported functions --------------------------------------------------------*/


HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda)
{
  /* Check the IRDA handle allocation */
  if (hirda == NULL)
  {
    return HAL_ERROR;
  }
 
  /* Check the IRDA instance parameters */
  assert_param(IS_IRDA_INSTANCE(hirda->Instance));
  /* Check the IRDA mode parameter in the IRDA handle */
  assert_param(IS_IRDA_POWERMODE(hirda->Init.IrDAMode));
 
  if (hirda->gState == HAL_IRDA_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hirda->Lock = HAL_UNLOCKED;
 
#if USE_HAL_IRDA_REGISTER_CALLBACKS == 1
    IRDA_InitCallbacksToDefault(hirda);
 
    if (hirda->MspInitCallback == NULL)
    {
      hirda->MspInitCallback = HAL_IRDA_MspInit;
    }
 
    /* Init the low level hardware */
    hirda->MspInitCallback(hirda);
#else
    /* Init the low level hardware : GPIO, CLOCK */
    HAL_IRDA_MspInit(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACKS */
  }
 
  hirda->gState = HAL_IRDA_STATE_BUSY;
 
  /* Disable the IRDA peripheral */
  __HAL_IRDA_DISABLE(hirda);
 
  /* Set the IRDA communication parameters */
  IRDA_SetConfig(hirda);
 
  /* In IrDA mode, the following bits must be kept cleared:
  - LINEN, STOP and CLKEN bits in the USART_CR2 register,
  - SCEN and HDSEL bits in the USART_CR3 register.*/
  CLEAR_BIT(hirda->Instance->CR2, (USART_CR2_LINEN | USART_CR2_STOP | USART_CR2_CLKEN));
  CLEAR_BIT(hirda->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL));
 
  /* Enable the IRDA peripheral */
  __HAL_IRDA_ENABLE(hirda);
 
  /* Set the prescaler */
  MODIFY_REG(hirda->Instance->GTPR, USART_GTPR_PSC, hirda->Init.Prescaler);
 
  /* Configure the IrDA mode */
  MODIFY_REG(hirda->Instance->CR3, USART_CR3_IRLP, hirda->Init.IrDAMode);
 
  /* Enable the IrDA mode by setting the IREN bit in the CR3 register */
  SET_BIT(hirda->Instance->CR3, USART_CR3_IREN);
 
  /* Initialize the IRDA state*/
  hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
  hirda->gState = HAL_IRDA_STATE_READY;
  hirda->RxState = HAL_IRDA_STATE_READY;
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_DeInit(IRDA_HandleTypeDef *hirda)
{
  /* Check the IRDA handle allocation */
  if (hirda == NULL)
  {
    return HAL_ERROR;
  }
 
  /* Check the parameters */
  assert_param(IS_IRDA_INSTANCE(hirda->Instance));
 
  hirda->gState = HAL_IRDA_STATE_BUSY;
 
  /* Disable the Peripheral */
  __HAL_IRDA_DISABLE(hirda);
 
  /* DeInit the low level hardware */
#if USE_HAL_IRDA_REGISTER_CALLBACKS == 1
  if (hirda->MspDeInitCallback == NULL)
  {
    hirda->MspDeInitCallback = HAL_IRDA_MspDeInit;
  }
  /* DeInit the low level hardware */
  hirda->MspDeInitCallback(hirda);
#else
  HAL_IRDA_MspDeInit(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACKS */
 
  hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
 
  hirda->gState = HAL_IRDA_STATE_RESET;
  hirda->RxState = HAL_IRDA_STATE_RESET;
 
  /* Release Lock */
  __HAL_UNLOCK(hirda);
 
  return HAL_OK;
}

__weak void HAL_IRDA_MspInit(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE: This function should not be modified, when the callback is needed,
           the HAL_IRDA_MspInit can be implemented in the user file
   */
}

__weak void HAL_IRDA_MspDeInit(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE: This function should not be modified, when the callback is needed,
           the HAL_IRDA_MspDeInit can be implemented in the user file
   */
}
 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
HAL_StatusTypeDef HAL_IRDA_RegisterCallback(IRDA_HandleTypeDef *hirda, HAL_IRDA_CallbackIDTypeDef CallbackID, pIRDA_CallbackTypeDef pCallback)
{
  HAL_StatusTypeDef status = HAL_OK;
 
  if (pCallback == NULL)
  {
    /* Update the error code */
    hirda->ErrorCode |= HAL_IRDA_ERROR_INVALID_CALLBACK;
 
    return HAL_ERROR;
  }
 
  if (hirda->gState == HAL_IRDA_STATE_READY)
  {
    switch (CallbackID)
    {
      case HAL_IRDA_TX_HALFCOMPLETE_CB_ID :
        hirda->TxHalfCpltCallback = pCallback;
        break;
 
      case HAL_IRDA_TX_COMPLETE_CB_ID :
        hirda->TxCpltCallback = pCallback;
        break;
 
      case HAL_IRDA_RX_HALFCOMPLETE_CB_ID :
        hirda->RxHalfCpltCallback = pCallback;
        break;
 
      case HAL_IRDA_RX_COMPLETE_CB_ID :
        hirda->RxCpltCallback = pCallback;
        break;
 
      case HAL_IRDA_ERROR_CB_ID :
        hirda->ErrorCallback = pCallback;
        break;
 
      case HAL_IRDA_ABORT_COMPLETE_CB_ID :
        hirda->AbortCpltCallback = pCallback;
        break;
 
      case HAL_IRDA_ABORT_TRANSMIT_COMPLETE_CB_ID :
        hirda->AbortTransmitCpltCallback = pCallback;
        break;
 
      case HAL_IRDA_ABORT_RECEIVE_COMPLETE_CB_ID :
        hirda->AbortReceiveCpltCallback = pCallback;
        break;
 
      case HAL_IRDA_MSPINIT_CB_ID :
        hirda->MspInitCallback = pCallback;
        break;
 
      case HAL_IRDA_MSPDEINIT_CB_ID :
        hirda->MspDeInitCallback = pCallback;
        break;
 
      default :
        /* Update the error code */
        hirda->ErrorCode |= HAL_IRDA_ERROR_INVALID_CALLBACK;
 
        /* Return error status */
        status =  HAL_ERROR;
        break;
    }
  }
  else if (hirda->gState == HAL_IRDA_STATE_RESET)
  {
    switch (CallbackID)
    {
      case HAL_IRDA_MSPINIT_CB_ID :
        hirda->MspInitCallback = pCallback;
        break;
 
      case HAL_IRDA_MSPDEINIT_CB_ID :
        hirda->MspDeInitCallback = pCallback;
        break;
 
      default :
        /* Update the error code */
        hirda->ErrorCode |= HAL_IRDA_ERROR_INVALID_CALLBACK;
 
        /* Return error status */
        status =  HAL_ERROR;
        break;
    }
  }
  else
  {
    /* Update the error code */
    hirda->ErrorCode |= HAL_IRDA_ERROR_INVALID_CALLBACK;
 
    /* Return error status */
    status =  HAL_ERROR;
  }
 
  return status;
}

HAL_StatusTypeDef HAL_IRDA_UnRegisterCallback(IRDA_HandleTypeDef *hirda, HAL_IRDA_CallbackIDTypeDef CallbackID)
{
  HAL_StatusTypeDef status = HAL_OK;
 
  if (HAL_IRDA_STATE_READY == hirda->gState)
  {
    switch (CallbackID)
    {
      case HAL_IRDA_TX_HALFCOMPLETE_CB_ID :
        hirda->TxHalfCpltCallback = HAL_IRDA_TxHalfCpltCallback;               /* Legacy weak  TxHalfCpltCallback       */
        break;
 
      case HAL_IRDA_TX_COMPLETE_CB_ID :
        hirda->TxCpltCallback = HAL_IRDA_TxCpltCallback;                       /* Legacy weak TxCpltCallback            */
        break;
 
      case HAL_IRDA_RX_HALFCOMPLETE_CB_ID :
        hirda->RxHalfCpltCallback = HAL_IRDA_RxHalfCpltCallback;               /* Legacy weak RxHalfCpltCallback        */
        break;
 
      case HAL_IRDA_RX_COMPLETE_CB_ID :
        hirda->RxCpltCallback = HAL_IRDA_RxCpltCallback;                       /* Legacy weak RxCpltCallback            */
        break;
 
      case HAL_IRDA_ERROR_CB_ID :
        hirda->ErrorCallback = HAL_IRDA_ErrorCallback;                         /* Legacy weak ErrorCallback             */
        break;
 
      case HAL_IRDA_ABORT_COMPLETE_CB_ID :
        hirda->AbortCpltCallback = HAL_IRDA_AbortCpltCallback;                 /* Legacy weak AbortCpltCallback         */
        break;
 
      case HAL_IRDA_ABORT_TRANSMIT_COMPLETE_CB_ID :
        hirda->AbortTransmitCpltCallback = HAL_IRDA_AbortTransmitCpltCallback; /* Legacy weak AbortTransmitCpltCallback */
        break;
 
      case HAL_IRDA_ABORT_RECEIVE_COMPLETE_CB_ID :
        hirda->AbortReceiveCpltCallback = HAL_IRDA_AbortReceiveCpltCallback;   /* Legacy weak AbortReceiveCpltCallback  */
        break;
 
      case HAL_IRDA_MSPINIT_CB_ID :
        hirda->MspInitCallback = HAL_IRDA_MspInit;                             /* Legacy weak MspInitCallback           */
        break;
 
      case HAL_IRDA_MSPDEINIT_CB_ID :
        hirda->MspDeInitCallback = HAL_IRDA_MspDeInit;                         /* Legacy weak MspDeInitCallback         */
        break;
 
      default :
        /* Update the error code */
        hirda->ErrorCode |= HAL_IRDA_ERROR_INVALID_CALLBACK;
 
        /* Return error status */
        status =  HAL_ERROR;
        break;
    }
  }
  else if (HAL_IRDA_STATE_RESET == hirda->gState)
  {
    switch (CallbackID)
    {
      case HAL_IRDA_MSPINIT_CB_ID :
        hirda->MspInitCallback = HAL_IRDA_MspInit;
        break;
 
      case HAL_IRDA_MSPDEINIT_CB_ID :
        hirda->MspDeInitCallback = HAL_IRDA_MspDeInit;
        break;
 
      default :
        /* Update the error code */
        hirda->ErrorCode |= HAL_IRDA_ERROR_INVALID_CALLBACK;
 
        /* Return error status */
        status =  HAL_ERROR;
        break;
    }
  }
  else
  {
    /* Update the error code */
    hirda->ErrorCode |= HAL_IRDA_ERROR_INVALID_CALLBACK;
 
    /* Return error status */
    status =  HAL_ERROR;
  }
 
  return status;
}
#endif /* USE_HAL_IRDA_REGISTER_CALLBACKS */



HAL_StatusTypeDef HAL_IRDA_Transmit(IRDA_HandleTypeDef *hirda, const uint8_t *pData, uint16_t Size, uint32_t Timeout)
{
  const uint16_t *tmp;
  uint32_t tickstart = 0U;
 
  /* Check that a Tx process is not already ongoing */
  if (hirda->gState == HAL_IRDA_STATE_READY)
  {
    if ((pData == NULL) || (Size == 0U))
    {
      return  HAL_ERROR;
    }
 
    /* Process Locked */
    __HAL_LOCK(hirda);
 
    hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
    hirda->gState = HAL_IRDA_STATE_BUSY_TX;
 
    /* Init tickstart for timeout management*/
    tickstart = HAL_GetTick();
 
    hirda->TxXferSize = Size;
    hirda->TxXferCount = Size;
    while (hirda->TxXferCount > 0U)
    {
      hirda->TxXferCount--;
      if (hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
      {
        if (IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
        {
          return HAL_TIMEOUT;
        }
        tmp = (const uint16_t *) pData;
        hirda->Instance->DR = (*tmp & (uint16_t)0x01FF);
        if (hirda->Init.Parity == IRDA_PARITY_NONE)
        {
          pData += 2U;
        }
        else
        {
          pData += 1U;
        }
      }
      else
      {
        if (IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
        {
          return HAL_TIMEOUT;
        }
        hirda->Instance->DR = (*pData++ & (uint8_t)0xFF);
      }
    }
 
    if (IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK)
    {
      return HAL_TIMEOUT;
    }
 
    /* At end of Tx process, restore hirda->gState to Ready */
    hirda->gState = HAL_IRDA_STATE_READY;
 
    /* Process Unlocked */
    __HAL_UNLOCK(hirda);
 
    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

HAL_StatusTypeDef HAL_IRDA_Receive(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout)
{
  uint16_t *tmp;
  uint32_t tickstart = 0U;
 
  /* Check that a Rx process is not already ongoing */
  if (hirda->RxState == HAL_IRDA_STATE_READY)
  {
    if ((pData == NULL) || (Size == 0U))
    {
      return  HAL_ERROR;
    }
 
    /* Process Locked */
    __HAL_LOCK(hirda);
 
    hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
    hirda->RxState = HAL_IRDA_STATE_BUSY_RX;
 
    /* Init tickstart for timeout management*/
    tickstart = HAL_GetTick();
 
    hirda->RxXferSize = Size;
    hirda->RxXferCount = Size;
 
    /* Check the remain data to be received */
    while (hirda->RxXferCount > 0U)
    {
      hirda->RxXferCount--;
 
      if (hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
      {
        if (IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
        {
          return HAL_TIMEOUT;
        }
        tmp = (uint16_t *) pData ;
        if (hirda->Init.Parity == IRDA_PARITY_NONE)
        {
          *tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x01FF);
          pData += 2U;
        }
        else
        {
          *tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x00FF);
          pData += 1U;
        }
      }
      else
      {
        if (IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
        {
          return HAL_TIMEOUT;
        }
        if (hirda->Init.Parity == IRDA_PARITY_NONE)
        {
          *pData++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x00FF);
        }
        else
        {
          *pData++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x007F);
        }
      }
    }
 
    /* At end of Rx process, restore hirda->RxState to Ready */
    hirda->RxState = HAL_IRDA_STATE_READY;
 
    /* Process Unlocked */
    __HAL_UNLOCK(hirda);
 
    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

HAL_StatusTypeDef HAL_IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda, const uint8_t *pData, uint16_t Size)
{
  /* Check that a Tx process is not already ongoing */
  if (hirda->gState == HAL_IRDA_STATE_READY)
  {
    if ((pData == NULL) || (Size == 0U))
    {
      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;
 
    /* Process Unlocked */
    __HAL_UNLOCK(hirda);
 
    /* Enable the IRDA Transmit Data Register Empty Interrupt */
    SET_BIT(hirda->Instance->CR1, USART_CR1_TXEIE);
 
    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

HAL_StatusTypeDef HAL_IRDA_Receive_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
{
  /* Check that a Rx process is not already ongoing */
  if (hirda->RxState == HAL_IRDA_STATE_READY)
  {
    if ((pData == NULL) || (Size == 0U))
    {
      return HAL_ERROR;
    }
 
    /* Process Locked */
    __HAL_LOCK(hirda);
 
    hirda->pRxBuffPtr = pData;
    hirda->RxXferSize = Size;
    hirda->RxXferCount = Size;
 
    hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
    hirda->RxState = HAL_IRDA_STATE_BUSY_RX;
 
    /* Process Unlocked */
    __HAL_UNLOCK(hirda);
 
    if (hirda->Init.Parity != IRDA_PARITY_NONE)
    {
      /* Enable the IRDA Parity Error and Data Register Not Empty Interrupts */
      SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE | USART_CR1_RXNEIE);
    }
    else
    {
      /* Enable the IRDA Data Register Not Empty Interrupts */
       SET_BIT(hirda->Instance->CR1, USART_CR1_RXNEIE); 
    }
 
    /* Enable the IRDA Error Interrupt: (Frame error, Noise error, Overrun error) */
    SET_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

HAL_StatusTypeDef HAL_IRDA_Transmit_DMA(IRDA_HandleTypeDef *hirda, const uint8_t *pData, uint16_t Size)
{
  const uint32_t *tmp;
 
  /* Check that a Tx process is not already ongoing */
  if (hirda->gState == HAL_IRDA_STATE_READY)
  {
    if ((pData == NULL) || (Size == 0U))
    {
      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;
 
    /* Set the DMA abort callback */
    hirda->hdmatx->XferAbortCallback = NULL;
 
    /* Enable the IRDA transmit DMA stream */
    tmp = (const uint32_t *)&pData;
    if (HAL_DMA_Start_IT(hirda->hdmatx, *(const uint32_t *)tmp, (uint32_t)&hirda->Instance->DR, Size) == HAL_OK)
    {
      /* Clear the TC flag in the SR register by writing 0 to it */
      __HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_TC);
 
      /* Process Unlocked */
      __HAL_UNLOCK(hirda);
 
      /* 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);
 
      return HAL_OK;
    }
    else
    {
      /* Set error code to DMA */
      hirda->ErrorCode = HAL_IRDA_ERROR_DMA;
 
      /* Process Unlocked */
      __HAL_UNLOCK(hirda);
 
      /* Restore hirda->gState to ready */
      hirda->gState = HAL_IRDA_STATE_READY;
 
      return HAL_ERROR;
    }
  }
  else
  {
    return HAL_BUSY;
  }
}

HAL_StatusTypeDef HAL_IRDA_Receive_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
{
  uint32_t *tmp;
 
  /* Check that a Rx process is not already ongoing */
  if (hirda->RxState == HAL_IRDA_STATE_READY)
  {
    if ((pData == NULL) || (Size == 0U))
    {
      return HAL_ERROR;
    }
 
    /* Process Locked */
    __HAL_LOCK(hirda);
 
    hirda->pRxBuffPtr = pData;
    hirda->RxXferSize = Size;
 
    hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
    hirda->RxState = HAL_IRDA_STATE_BUSY_RX;
 
    /* Set the IRDA DMA transfer complete callback */
    hirda->hdmarx->XferCpltCallback = IRDA_DMAReceiveCplt;
 
    /* Set the IRDA DMA half transfer complete callback */
    hirda->hdmarx->XferHalfCpltCallback = IRDA_DMAReceiveHalfCplt;
 
    /* Set the DMA error callback */
    hirda->hdmarx->XferErrorCallback = IRDA_DMAError;
 
    /* Set the DMA abort callback */
    hirda->hdmarx->XferAbortCallback = NULL;
 
    /* Enable the DMA stream */
    tmp = (uint32_t *)&pData;
    if (HAL_DMA_Start_IT(hirda->hdmarx, (uint32_t)&hirda->Instance->DR, *(uint32_t *)tmp, Size) == HAL_OK)
    {
      /* Clear the Overrun flag just before enabling the DMA Rx request: can be mandatory for the second transfer */
      __HAL_IRDA_CLEAR_OREFLAG(hirda);
 
      /* Process Unlocked */
      __HAL_UNLOCK(hirda);
 
      if (hirda->Init.Parity != IRDA_PARITY_NONE)
      {
        /* Enable the IRDA Parity Error Interrupt */
        SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
      }
 
      /* Enable the IRDA Error Interrupt: (Frame error, Noise error, Overrun error) */
      SET_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
      /* Enable the DMA transfer for the receiver request by setting the DMAR bit
      in the USART CR3 register */
      SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
 
      return HAL_OK;
    }
    else
    {
      /* Set error code to DMA */
      hirda->ErrorCode = HAL_IRDA_ERROR_DMA;
 
      /* Process Unlocked */
      __HAL_UNLOCK(hirda);
 
      /* Restore hirda->RxState to ready */
      hirda->RxState = HAL_IRDA_STATE_READY;
 
      return HAL_ERROR;
    }
  }
  else
  {
    return HAL_BUSY;
  }
}

HAL_StatusTypeDef HAL_IRDA_DMAPause(IRDA_HandleTypeDef *hirda)
{
  uint32_t dmarequest = 0x00U;
 
  /* Process Locked */
  __HAL_LOCK(hirda);
 
  dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT);
  if ((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest)
  {
    /* Disable the IRDA DMA Tx request */
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
  }
 
  dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR);
  if ((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest)
  {
    /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */
    CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
    /* Disable the IRDA DMA Rx request */
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
  }
 
  /* Process Unlocked */
  __HAL_UNLOCK(hirda);
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_DMAResume(IRDA_HandleTypeDef *hirda)
{
  /* Process Locked */
  __HAL_LOCK(hirda);
 
  if (hirda->gState == HAL_IRDA_STATE_BUSY_TX)
  {
    /* Enable the IRDA DMA Tx request */
    SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
  }
 
  if (hirda->RxState == HAL_IRDA_STATE_BUSY_RX)
  {
    /* Clear the Overrun flag before resuming the Rx transfer */
    __HAL_IRDA_CLEAR_OREFLAG(hirda);
 
    /* Re-enable PE and ERR (Frame error, noise error, overrun error) interrupts */
    if (hirda->Init.Parity != IRDA_PARITY_NONE)
    {    
      SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
    }
    SET_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
    /* Enable the IRDA DMA Rx request */
    SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
  }
 
  /* Process Unlocked */
  __HAL_UNLOCK(hirda);
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_DMAStop(IRDA_HandleTypeDef *hirda)
{
  uint32_t dmarequest = 0x00U;
  /* The Lock is not implemented on this API to allow the user application
     to call the HAL IRDA API under callbacks HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback():
     when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
     and the correspond call back is executed HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback()
  */
 
  /* Stop IRDA DMA Tx request if ongoing */
  dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT);
  if ((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest)
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
 
    /* Abort the IRDA DMA Tx channel */
    if (hirda->hdmatx != NULL)
    {
      HAL_DMA_Abort(hirda->hdmatx);
    }
    IRDA_EndTxTransfer(hirda);
  }
 
  /* Stop IRDA DMA Rx request if ongoing */
  dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR);
  if ((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest)
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
 
    /* Abort the IRDA DMA Rx channel */
    if (hirda->hdmarx != NULL)
    {
      HAL_DMA_Abort(hirda->hdmarx);
    }
    IRDA_EndRxTransfer(hirda);
  }
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_Abort(IRDA_HandleTypeDef *hirda)
{
  /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
  CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
  /* Disable the IRDA DMA Tx request if enabled */
  if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
 
    /* Abort the IRDA DMA Tx channel : use blocking DMA Abort API (no callback) */
    if (hirda->hdmatx != NULL)
    {
      /* Set the IRDA DMA Abort callback to Null.
         No call back execution at end of DMA abort procedure */
      hirda->hdmatx->XferAbortCallback = NULL;
 
      HAL_DMA_Abort(hirda->hdmatx);
    }
  }
 
  /* Disable the IRDA DMA Rx request if enabled */
  if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
 
    /* Abort the IRDA DMA Rx channel : use blocking DMA Abort API (no callback) */
    if (hirda->hdmarx != NULL)
    {
      /* Set the IRDA DMA Abort callback to Null.
         No call back execution at end of DMA abort procedure */
      hirda->hdmarx->XferAbortCallback = NULL;
 
      HAL_DMA_Abort(hirda->hdmarx);
    }
  }
 
  /* Reset Tx and Rx transfer counters */
  hirda->TxXferCount = 0x00U;
  hirda->RxXferCount = 0x00U;
 
  /* Reset ErrorCode */
  hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
 
  /* Restore hirda->RxState and hirda->gState to Ready */
  hirda->RxState = HAL_IRDA_STATE_READY;
  hirda->gState = HAL_IRDA_STATE_READY;
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_AbortTransmit(IRDA_HandleTypeDef *hirda)
{
  /* Disable TXEIE and TCIE interrupts */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
 
  /* Disable the IRDA DMA Tx request if enabled */
  if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
 
    /* Abort the IRDA DMA Tx channel : use blocking DMA Abort API (no callback) */
    if (hirda->hdmatx != NULL)
    {
      /* Set the IRDA DMA Abort callback to Null.
         No call back execution at end of DMA abort procedure */
      hirda->hdmatx->XferAbortCallback = NULL;
 
      HAL_DMA_Abort(hirda->hdmatx);
    }
  }
 
  /* Reset Tx transfer counter */
  hirda->TxXferCount = 0x00U;
 
  /* Restore hirda->gState to Ready */
  hirda->gState = HAL_IRDA_STATE_READY;
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_AbortReceive(IRDA_HandleTypeDef *hirda)
{
  /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
  CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
  /* Disable the IRDA DMA Rx request if enabled */
  if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
 
    /* Abort the IRDA DMA Rx channel : use blocking DMA Abort API (no callback) */
    if (hirda->hdmarx != NULL)
    {
      /* Set the IRDA DMA Abort callback to Null.
         No call back execution at end of DMA abort procedure */
      hirda->hdmarx->XferAbortCallback = NULL;
 
      HAL_DMA_Abort(hirda->hdmarx);
    }
  }
 
  /* Reset Rx transfer counter */
  hirda->RxXferCount = 0x00U;
 
  /* Restore hirda->RxState to Ready */
  hirda->RxState = HAL_IRDA_STATE_READY;
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_Abort_IT(IRDA_HandleTypeDef *hirda)
{
  uint32_t AbortCplt = 0x01U;
 
  /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
  CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
  /* If DMA Tx and/or DMA Rx Handles are associated to IRDA Handle, DMA Abort complete callbacks should be initialised
     before any call to DMA Abort functions */
  /* DMA Tx Handle is valid */
  if (hirda->hdmatx != NULL)
  {
    /* Set DMA Abort Complete callback if IRDA DMA Tx request if enabled.
       Otherwise, set it to NULL */
    if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
    {
      hirda->hdmatx->XferAbortCallback = IRDA_DMATxAbortCallback;
    }
    else
    {
      hirda->hdmatx->XferAbortCallback = NULL;
    }
  }
  /* DMA Rx Handle is valid */
  if (hirda->hdmarx != NULL)
  {
    /* Set DMA Abort Complete callback if IRDA DMA Rx request if enabled.
       Otherwise, set it to NULL */
    if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
    {
      hirda->hdmarx->XferAbortCallback = IRDA_DMARxAbortCallback;
    }
    else
    {
      hirda->hdmarx->XferAbortCallback = NULL;
    }
  }
 
  /* Disable the IRDA DMA Tx request if enabled */
  if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
  {
    /* Disable DMA Tx at IRDA level */
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
 
    /* Abort the IRDA DMA Tx channel : use non blocking DMA Abort API (callback) */
    if (hirda->hdmatx != NULL)
    {
      /* IRDA Tx DMA Abort callback has already been initialised :
         will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */
 
      /* Abort DMA TX */
      if (HAL_DMA_Abort_IT(hirda->hdmatx) != HAL_OK)
      {
        hirda->hdmatx->XferAbortCallback = NULL;
      }
      else
      {
        AbortCplt = 0x00U;
      }
    }
  }
 
  /* Disable the IRDA DMA Rx request if enabled */
  if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
 
    /* Abort the IRDA DMA Rx channel : use non blocking DMA Abort API (callback) */
    if (hirda->hdmarx != NULL)
    {
      /* IRDA Rx DMA Abort callback has already been initialised :
         will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */
 
      /* Abort DMA RX */
      if (HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK)
      {
        hirda->hdmarx->XferAbortCallback = NULL;
        AbortCplt = 0x01U;
      }
      else
      {
        AbortCplt = 0x00U;
      }
    }
  }
 
  /* if no DMA abort complete callback execution is required => call user Abort Complete callback */
  if (AbortCplt == 0x01U)
  {
    /* Reset Tx and Rx transfer counters */
    hirda->TxXferCount = 0x00U;
    hirda->RxXferCount = 0x00U;
 
    /* Reset ErrorCode */
    hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
 
    /* Restore hirda->gState and hirda->RxState to Ready */
    hirda->gState  = HAL_IRDA_STATE_READY;
    hirda->RxState = HAL_IRDA_STATE_READY;
 
    /* As no DMA to be aborted, call directly user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
    /* Call registered Abort complete callback */
    hirda->AbortCpltCallback(hirda);
#else
    /* Call legacy weak Abort complete callback */
    HAL_IRDA_AbortCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
  }
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_AbortTransmit_IT(IRDA_HandleTypeDef *hirda)
{
  /* Disable TXEIE and TCIE interrupts */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
 
  /* Disable the IRDA DMA Tx request if enabled */
  if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
 
    /* Abort the IRDA DMA Tx channel : use non blocking DMA Abort API (callback) */
    if (hirda->hdmatx != NULL)
    {
      /* Set the IRDA DMA Abort callback :
         will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */
      hirda->hdmatx->XferAbortCallback = IRDA_DMATxOnlyAbortCallback;
 
      /* Abort DMA TX */
      if (HAL_DMA_Abort_IT(hirda->hdmatx) != HAL_OK)
      {
        /* Call Directly hirda->hdmatx->XferAbortCallback function in case of error */
        hirda->hdmatx->XferAbortCallback(hirda->hdmatx);
      }
    }
    else
    {
      /* Reset Tx transfer counter */
      hirda->TxXferCount = 0x00U;
 
      /* Restore hirda->gState to Ready */
      hirda->gState = HAL_IRDA_STATE_READY;
 
      /* As no DMA to be aborted, call directly user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
      /* Call registered Abort Transmit Complete Callback */
      hirda->AbortTransmitCpltCallback(hirda);
#else
      /* Call legacy weak Abort Transmit Complete Callback */
      HAL_IRDA_AbortTransmitCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
    }
  }
  else
  {
    /* Reset Tx transfer counter */
    hirda->TxXferCount = 0x00U;
 
    /* Restore hirda->gState to Ready */
    hirda->gState = HAL_IRDA_STATE_READY;
 
    /* As no DMA to be aborted, call directly user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
    /* Call registered Abort Transmit Complete Callback */
    hirda->AbortTransmitCpltCallback(hirda);
#else
    /* Call legacy weak Abort Transmit Complete Callback */
    HAL_IRDA_AbortTransmitCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
  }
 
  return HAL_OK;
}

HAL_StatusTypeDef HAL_IRDA_AbortReceive_IT(IRDA_HandleTypeDef *hirda)
{
  /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
  CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
  /* Disable the IRDA DMA Rx request if enabled */
  if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
  {
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
 
    /* Abort the IRDA DMA Rx channel : use non blocking DMA Abort API (callback) */
    if (hirda->hdmarx != NULL)
    {
      /* Set the IRDA DMA Abort callback :
         will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */
      hirda->hdmarx->XferAbortCallback = IRDA_DMARxOnlyAbortCallback;
 
      /* Abort DMA RX */
      if (HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK)
      {
        /* Call Directly hirda->hdmarx->XferAbortCallback function in case of error */
        hirda->hdmarx->XferAbortCallback(hirda->hdmarx);
      }
    }
    else
    {
      /* Reset Rx transfer counter */
      hirda->RxXferCount = 0x00U;
 
      /* Restore hirda->RxState to Ready */
      hirda->RxState = HAL_IRDA_STATE_READY;
 
      /* As no DMA to be aborted, call directly user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
      /* Call registered Abort Receive Complete Callback */
      hirda->AbortReceiveCpltCallback(hirda);
#else
      /* Call legacy weak Abort Receive Complete Callback */
      HAL_IRDA_AbortReceiveCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
    }
  }
  else
  {
    /* Reset Rx transfer counter */
    hirda->RxXferCount = 0x00U;
 
    /* Restore hirda->RxState to Ready */
    hirda->RxState = HAL_IRDA_STATE_READY;
 
    /* As no DMA to be aborted, call directly user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
    /* Call registered Abort Receive Complete Callback */
    hirda->AbortReceiveCpltCallback(hirda);
#else
    /* Call legacy weak Abort Receive Complete Callback */
    HAL_IRDA_AbortReceiveCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
  }
 
  return HAL_OK;
}

void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda)
{
  uint32_t isrflags   = READ_REG(hirda->Instance->SR);
  uint32_t cr1its     = READ_REG(hirda->Instance->CR1);
  uint32_t cr3its     = READ_REG(hirda->Instance->CR3);
  uint32_t errorflags = 0x00U;
  uint32_t dmarequest = 0x00U;
 
  /* If no error occurs */
  errorflags = (isrflags & (uint32_t)(USART_SR_PE | USART_SR_FE | USART_SR_ORE | USART_SR_NE));
  if (errorflags == RESET)
  {
    /* IRDA in mode Receiver -----------------------------------------------*/
    if (((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
    {
      IRDA_Receive_IT(hirda);
      return;
    }
  }
 
  /* If some errors occur */
  if ((errorflags != RESET) && (((cr3its & USART_CR3_EIE) != RESET) || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != RESET)))
  {
    /* IRDA parity error interrupt occurred -------------------------------*/
    if (((isrflags & USART_SR_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET))
    {
      hirda->ErrorCode |= HAL_IRDA_ERROR_PE;
    }
 
    /* IRDA noise error interrupt occurred --------------------------------*/
    if (((isrflags & USART_SR_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
    {
      hirda->ErrorCode |= HAL_IRDA_ERROR_NE;
    }
 
    /* IRDA frame error interrupt occurred --------------------------------*/
    if (((isrflags & USART_SR_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
    {
      hirda->ErrorCode |= HAL_IRDA_ERROR_FE;
    }
 
    /* IRDA Over-Run interrupt occurred -----------------------------------*/
    if (((isrflags & USART_SR_ORE) != RESET) && (((cr1its & USART_CR1_RXNEIE) != RESET) || ((cr3its & USART_CR3_EIE) != RESET)))
    {
      hirda->ErrorCode |= HAL_IRDA_ERROR_ORE;
    }
    /* Call IRDA Error Call back function if need be -----------------------*/
    if (hirda->ErrorCode != HAL_IRDA_ERROR_NONE)
    {
      /* IRDA in mode Receiver ---------------------------------------------*/
      if (((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
      {
        IRDA_Receive_IT(hirda);
      }
 
      /* If Overrun error occurs, or if any error occurs in DMA mode reception,
         consider error as blocking */
      dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR);
      if (((hirda->ErrorCode & HAL_IRDA_ERROR_ORE) != RESET) || dmarequest)
      {
        /* Blocking error : transfer is aborted
           Set the IRDA state ready to be able to start again the process,
           Disable Rx Interrupts, and disable Rx DMA request, if ongoing */
        IRDA_EndRxTransfer(hirda);
 
        /* Disable the IRDA DMA Rx request if enabled */
        if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
        {
          CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
 
          /* Abort the IRDA DMA Rx channel */
          if (hirda->hdmarx != NULL)
          {
            /* Set the IRDA DMA Abort callback :
            will lead to call HAL_IRDA_ErrorCallback() at end of DMA abort procedure */
            hirda->hdmarx->XferAbortCallback = IRDA_DMAAbortOnError;
 
            /* Abort DMA RX */
            if (HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK)
            {
              /* Call Directly XferAbortCallback function in case of error */
              hirda->hdmarx->XferAbortCallback(hirda->hdmarx);
            }
          }
          else
          {
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
            /* Call registered user error callback */
            hirda->ErrorCallback(hirda);
#else
            /* Call legacy weak user error callback */
            HAL_IRDA_ErrorCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
          }
        }
        else
        {
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
          /* Call registered user error callback */
          hirda->ErrorCallback(hirda);
#else
          /* Call legacy weak user error callback */
          HAL_IRDA_ErrorCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
        }
      }
      else
      {
        /* Non Blocking error : transfer could go on.
           Error is notified to user through user error callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
        /* Call registered user error callback */
        hirda->ErrorCallback(hirda);
#else
        /* Call legacy weak user error callback */
        HAL_IRDA_ErrorCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
 
        hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
      }
    }
    return;
  } /* End if some error occurs */
 
  /* IRDA in mode Transmitter ------------------------------------------------*/
  if (((isrflags & USART_SR_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET))
  {
    IRDA_Transmit_IT(hirda);
    return;
  }
 
  /* IRDA in mode Transmitter end --------------------------------------------*/
  if (((isrflags & USART_SR_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET))
  {
    IRDA_EndTransmit_IT(hirda);
    return;
  }
}

__weak void HAL_IRDA_TxCpltCallback(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_IRDA_TxCpltCallback can be implemented in the user file.
   */
}

__weak void HAL_IRDA_TxHalfCpltCallback(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_IRDA_TxHalfCpltCallback can be implemented in the user file.
   */
}

__weak void HAL_IRDA_RxCpltCallback(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_IRDA_RxCpltCallback can be implemented in the user file.
   */
}

__weak void HAL_IRDA_RxHalfCpltCallback(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_IRDA_RxHalfCpltCallback can be implemented in the user file.
   */
}

__weak void HAL_IRDA_ErrorCallback(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_IRDA_ErrorCallback can be implemented in the user file.
   */
}

__weak void HAL_IRDA_AbortCpltCallback(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_IRDA_AbortCpltCallback can be implemented in the user file.
   */
}

__weak void HAL_IRDA_AbortTransmitCpltCallback(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_IRDA_AbortTransmitCpltCallback can be implemented in the user file.
   */
}

__weak void HAL_IRDA_AbortReceiveCpltCallback(IRDA_HandleTypeDef *hirda)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hirda);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_IRDA_AbortReceiveCpltCallback can be implemented in the user file.
   */
}



HAL_IRDA_StateTypeDef HAL_IRDA_GetState(const IRDA_HandleTypeDef *hirda)
{
  uint32_t temp1 = 0x00U, temp2 = 0x00U;
  temp1 = hirda->gState;
  temp2 = hirda->RxState;
 
  return (HAL_IRDA_StateTypeDef)(temp1 | temp2);
}

uint32_t HAL_IRDA_GetError(const IRDA_HandleTypeDef *hirda)
{
  return hirda->ErrorCode;
}



 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
void IRDA_InitCallbacksToDefault(IRDA_HandleTypeDef *hirda)
{
  /* Init the IRDA Callback settings */
  hirda->TxHalfCpltCallback        = HAL_IRDA_TxHalfCpltCallback;        /* Legacy weak TxHalfCpltCallback        */
  hirda->TxCpltCallback            = HAL_IRDA_TxCpltCallback;            /* Legacy weak TxCpltCallback            */
  hirda->RxHalfCpltCallback        = HAL_IRDA_RxHalfCpltCallback;        /* Legacy weak RxHalfCpltCallback        */
  hirda->RxCpltCallback            = HAL_IRDA_RxCpltCallback;            /* Legacy weak RxCpltCallback            */
  hirda->ErrorCallback             = HAL_IRDA_ErrorCallback;             /* Legacy weak ErrorCallback             */
  hirda->AbortCpltCallback         = HAL_IRDA_AbortCpltCallback;         /* Legacy weak AbortCpltCallback         */
  hirda->AbortTransmitCpltCallback = HAL_IRDA_AbortTransmitCpltCallback; /* Legacy weak AbortTransmitCpltCallback */
  hirda->AbortReceiveCpltCallback  = HAL_IRDA_AbortReceiveCpltCallback;  /* Legacy weak AbortReceiveCpltCallback  */
 
}
#endif /* USE_HAL_IRDA_REGISTER_CALLBACKS */

static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
  /* DMA Normal mode */
  if ((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U)
  {
    hirda->TxXferCount = 0U;
 
    /* Disable the DMA transfer for transmit request by resetting the DMAT bit
       in the IRDA CR3 register */
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
 
    /* Enable the IRDA Transmit Complete Interrupt */
    SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE);
  }
  /* DMA Circular mode */
  else
  {
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
    /* Call registered Tx complete callback */
    hirda->TxCpltCallback(hirda);
#else
    /* Call legacy weak Tx complete callback */
    HAL_IRDA_TxCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
  }
}

static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered Tx Half complete callback */
  hirda->TxHalfCpltCallback(hirda);
#else
  /* Call legacy weak Tx complete callback */
  HAL_IRDA_TxHalfCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
}

static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
 
  /* DMA Normal mode */
  if ((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U)
  {
    hirda->RxXferCount = 0U;
 
    /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */
    CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
    /* Disable the DMA transfer for the receiver request by resetting the DMAR bit
       in the IRDA CR3 register */
    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
 
    /* At end of Rx process, restore hirda->RxState to Ready */
    hirda->RxState = HAL_IRDA_STATE_READY;
  }
 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered Rx complete callback */
  hirda->RxCpltCallback(hirda);
#else
  /* Call legacy weak Rx complete callback */
  HAL_IRDA_RxCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACKS */
}

static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /*Call registered Rx Half complete callback*/
  hirda->RxHalfCpltCallback(hirda);
#else
  /* Call legacy weak Rx Half complete callback */
  HAL_IRDA_RxHalfCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
}

static void IRDA_DMAError(DMA_HandleTypeDef *hdma)
{
  uint32_t dmarequest = 0x00U;
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
 
  /* Stop IRDA DMA Tx request if ongoing */
  dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT);
  if ((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest)
  {
    hirda->TxXferCount = 0U;
    IRDA_EndTxTransfer(hirda);
  }
 
  /* Stop IRDA DMA Rx request if ongoing */
  dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR);
  if ((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest)
  {
    hirda->RxXferCount = 0U;
    IRDA_EndRxTransfer(hirda);
  }
 
  hirda->ErrorCode |= HAL_IRDA_ERROR_DMA;
 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered user error callback */
  hirda->ErrorCallback(hirda);
#else
  /* Call legacy weak user error callback */
  HAL_IRDA_ErrorCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
}

static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout)
{
  /* Wait until flag is set */
  while ((__HAL_IRDA_GET_FLAG(hirda, Flag) ? SET : RESET) == Status)
  {
    /* Check for the Timeout */
    if (Timeout != HAL_MAX_DELAY)
    {
      if ((Timeout == 0U) || ((HAL_GetTick() - Tickstart) > Timeout))
      {
        /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
        CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE));
        CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
        hirda->gState  = HAL_IRDA_STATE_READY;
        hirda->RxState = HAL_IRDA_STATE_READY;
 
        /* Process Unlocked */
        __HAL_UNLOCK(hirda);
 
        return HAL_TIMEOUT;
      }
    }
  }
  return HAL_OK;
}

static void IRDA_EndTxTransfer(IRDA_HandleTypeDef *hirda)
{
  /* Disable TXEIE and TCIE interrupts */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
 
  /* At end of Tx process, restore hirda->gState to Ready */
  hirda->gState = HAL_IRDA_STATE_READY;
}

static void IRDA_EndRxTransfer(IRDA_HandleTypeDef *hirda)
{
  /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
  CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
  /* At end of Rx process, restore hirda->RxState to Ready */
  hirda->RxState = HAL_IRDA_STATE_READY;
}

static void IRDA_DMAAbortOnError(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
  hirda->RxXferCount = 0x00U;
  hirda->TxXferCount = 0x00U;
 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered user error callback */
  hirda->ErrorCallback(hirda);
#else
  /* Call legacy weak user error callback */
  HAL_IRDA_ErrorCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
}

static void IRDA_DMATxAbortCallback(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
 
  hirda->hdmatx->XferAbortCallback = NULL;
 
  /* Check if an Abort process is still ongoing */
  if (hirda->hdmarx != NULL)
  {
    if (hirda->hdmarx->XferAbortCallback != NULL)
    {
      return;
    }
  }
 
  /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
  hirda->TxXferCount = 0x00U;
  hirda->RxXferCount = 0x00U;
 
  /* Reset ErrorCode */
  hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
 
  /* Restore hirda->gState and hirda->RxState to Ready */
  hirda->gState  = HAL_IRDA_STATE_READY;
  hirda->RxState = HAL_IRDA_STATE_READY;
 
  /* Call user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered Abort complete callback */
  hirda->AbortCpltCallback(hirda);
#else
  /* Call legacy weak Abort complete callback */
  HAL_IRDA_AbortCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
}

static void IRDA_DMARxAbortCallback(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
 
  hirda->hdmarx->XferAbortCallback = NULL;
 
  /* Check if an Abort process is still ongoing */
  if (hirda->hdmatx != NULL)
  {
    if (hirda->hdmatx->XferAbortCallback != NULL)
    {
      return;
    }
  }
 
  /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
  hirda->TxXferCount = 0x00U;
  hirda->RxXferCount = 0x00U;
 
  /* Reset ErrorCode */
  hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
 
  /* Restore hirda->gState and hirda->RxState to Ready */
  hirda->gState  = HAL_IRDA_STATE_READY;
  hirda->RxState = HAL_IRDA_STATE_READY;
 
  /* Call user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered Abort complete callback */
  hirda->AbortCpltCallback(hirda);
#else
  /* Call legacy weak Abort complete callback */
  HAL_IRDA_AbortCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
}

static void IRDA_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
 
  hirda->TxXferCount = 0x00U;
 
  /* Restore hirda->gState to Ready */
  hirda->gState = HAL_IRDA_STATE_READY;
 
  /* Call user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered Abort Transmit Complete Callback */
  hirda->AbortTransmitCpltCallback(hirda);
#else
  /* Call legacy weak Abort Transmit Complete Callback */
  HAL_IRDA_AbortTransmitCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
}

static void IRDA_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
{
  IRDA_HandleTypeDef *hirda = (IRDA_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
 
  hirda->RxXferCount = 0x00U;
 
  /* Restore hirda->RxState to Ready */
  hirda->RxState = HAL_IRDA_STATE_READY;
 
  /* Call user Abort complete callback */
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered Abort Receive Complete Callback */
  hirda->AbortReceiveCpltCallback(hirda);
#else
  /* Call legacy weak Abort Receive Complete Callback */
  HAL_IRDA_AbortReceiveCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
}

static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda)
{
  const uint16_t *tmp;
 
  /* Check that a Tx process is ongoing */
  if (hirda->gState == HAL_IRDA_STATE_BUSY_TX)
  {
    if (hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
    {
      tmp = (const uint16_t *) hirda->pTxBuffPtr;
      hirda->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
      if (hirda->Init.Parity == IRDA_PARITY_NONE)
      {
        hirda->pTxBuffPtr += 2U;
      }
      else
      {
        hirda->pTxBuffPtr += 1U;
      }
    }
    else
    {
      hirda->Instance->DR = (uint8_t)(*hirda->pTxBuffPtr++ & (uint8_t)0x00FF);
    }
 
    if (--hirda->TxXferCount == 0U)
    {
      /* Disable the IRDA Transmit Data Register Empty Interrupt */
      CLEAR_BIT(hirda->Instance->CR1, USART_CR1_TXEIE);
 
      /* Enable the IRDA Transmit Complete Interrupt */
      SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE);
    }
 
    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda)
{
  /* Disable the IRDA Transmit Complete Interrupt */
  CLEAR_BIT(hirda->Instance->CR1, USART_CR1_TCIE);
 
  /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
  CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
  /* Tx process is ended, restore hirda->gState to Ready */
  hirda->gState = HAL_IRDA_STATE_READY;
 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
  /* Call registered Tx complete callback */
  hirda->TxCpltCallback(hirda);
#else
  /* Call legacy weak Tx complete callback */
  HAL_IRDA_TxCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACK */
 
  return HAL_OK;
}

static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda)
{
  uint16_t *tmp;
  uint16_t  uhdata;
 
  /* Check that a Rx process is ongoing */
  if (hirda->RxState == HAL_IRDA_STATE_BUSY_RX)
  {
    uhdata = (uint16_t) READ_REG(hirda->Instance->DR);
    if (hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
    {
      tmp = (uint16_t *) hirda->pRxBuffPtr;
      if (hirda->Init.Parity == IRDA_PARITY_NONE)
      {
        *tmp = (uint16_t)(uhdata & (uint16_t)0x01FF);
        hirda->pRxBuffPtr += 2U;
      }
      else
      {
        *tmp = (uint16_t)(uhdata & (uint16_t)0x00FF);
        hirda->pRxBuffPtr += 1U;
      }
    }
    else
    {
      if (hirda->Init.Parity == IRDA_PARITY_NONE)
      {
        *hirda->pRxBuffPtr++ = (uint8_t)(uhdata & (uint8_t)0x00FF);
      }
      else
      {
        *hirda->pRxBuffPtr++ = (uint8_t)(uhdata & (uint8_t)0x007F);
      }
    }
 
    if (--hirda->RxXferCount == 0U)
    {
      /* Disable the IRDA Data Register not empty Interrupt */
      CLEAR_BIT(hirda->Instance->CR1, USART_CR1_RXNEIE);
 
      /* Disable the IRDA Parity Error Interrupt */
      CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
 
      /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
      CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
 
      /* Rx process is completed, restore hirda->RxState to Ready */
      hirda->RxState = HAL_IRDA_STATE_READY;
 
#if (USE_HAL_IRDA_REGISTER_CALLBACKS == 1)
      /* Call registered Rx complete callback */
      hirda->RxCpltCallback(hirda);
#else
      /* Call legacy weak Rx complete callback */
      HAL_IRDA_RxCpltCallback(hirda);
#endif /* USE_HAL_IRDA_REGISTER_CALLBACKS */
 
      return HAL_OK;
    }
    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

static void IRDA_SetConfig(IRDA_HandleTypeDef *hirda)
{
  uint32_t pclk;
 
  /* Check the parameters */
  assert_param(IS_IRDA_INSTANCE(hirda->Instance));
  assert_param(IS_IRDA_BAUDRATE(hirda->Init.BaudRate));
  assert_param(IS_IRDA_WORD_LENGTH(hirda->Init.WordLength));
  assert_param(IS_IRDA_PARITY(hirda->Init.Parity));
  assert_param(IS_IRDA_MODE(hirda->Init.Mode));
  assert_param(IS_IRDA_POWERMODE(hirda->Init.IrDAMode));
 
  /*-------------------------- USART CR2 Configuration ------------------------*/
  /* Clear STOP[13:12] bits */
  CLEAR_BIT(hirda->Instance->CR2, USART_CR2_STOP);
 
  /*-------------------------- USART CR1 Configuration -----------------------*/
  /* Clear M, PCE, PS, TE and RE bits */
  CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE));
 
  /* Configure the USART Word Length, Parity and mode:
     Set the M bits according to hirda->Init.WordLength value
     Set PCE and PS bits according to hirda->Init.Parity value
     Set TE and RE bits according to hirda->Init.Mode value */
  /* Write to USART CR1 */
  SET_BIT(hirda->Instance->CR1, (hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode));
 
  /*-------------------------- USART CR3 Configuration -----------------------*/
  /* Clear CTSE and RTSE bits */
  CLEAR_BIT(hirda->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE));
 
  /*-------------------------- USART BRR Configuration -----------------------*/
#if defined(USART6) && defined(UART9) && defined(UART10)
   if ((hirda->Instance == USART1) || (hirda->Instance == USART6) || (hirda->Instance == UART9) || (hirda->Instance == UART10))
   {
    pclk = HAL_RCC_GetPCLK2Freq();
    SET_BIT(hirda->Instance->BRR, IRDA_BRR(pclk, hirda->Init.BaudRate));
   }
#elif defined(USART6)
  if((hirda->Instance == USART1) || (hirda->Instance == USART6))
  {
    pclk = HAL_RCC_GetPCLK2Freq();
    SET_BIT(hirda->Instance->BRR, IRDA_BRR(pclk, hirda->Init.BaudRate));
  }
#else
  if(hirda->Instance == USART1)
  {
    pclk = HAL_RCC_GetPCLK2Freq();
    SET_BIT(hirda->Instance->BRR, IRDA_BRR(pclk, hirda->Init.BaudRate));
  }
#endif /* USART6 */
  else
  {
    pclk = HAL_RCC_GetPCLK1Freq();
    SET_BIT(hirda->Instance->BRR, IRDA_BRR(pclk, hirda->Init.BaudRate));
  }
}

 
#endif /* HAL_IRDA_MODULE_ENABLED */