SMARTCARD Private Functions

Functions
void	SMARTCARD_InitCallbacksToDefault (SMARTCARD_HandleTypeDef *hsmartcard)
	Initialize the callbacks to their default values. More...
static HAL_StatusTypeDef	SMARTCARD_SetConfig (SMARTCARD_HandleTypeDef *hsmartcard)
	Configure the SMARTCARD associated USART peripheral. More...
static void	SMARTCARD_AdvFeatureConfig (SMARTCARD_HandleTypeDef *hsmartcard)
	Configure the SMARTCARD associated USART peripheral advanced features. More...
static HAL_StatusTypeDef	SMARTCARD_CheckIdleState (SMARTCARD_HandleTypeDef *hsmartcard)
	Check the SMARTCARD Idle State. More...
static HAL_StatusTypeDef	SMARTCARD_WaitOnFlagUntilTimeout (SMARTCARD_HandleTypeDef *hsmartcard, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout)
	Handle SMARTCARD Communication Timeout. More...
static void	SMARTCARD_EndTxTransfer (SMARTCARD_HandleTypeDef *hsmartcard)
	End ongoing Tx transfer on SMARTCARD peripheral (following error detection or Transmit completion). More...
static void	SMARTCARD_EndRxTransfer (SMARTCARD_HandleTypeDef *hsmartcard)
	End ongoing Rx transfer on UART peripheral (following error detection or Reception completion). More...
static void	SMARTCARD_DMATransmitCplt (DMA_HandleTypeDef *hdma)
	DMA SMARTCARD transmit process complete callback. More...
static void	SMARTCARD_DMAReceiveCplt (DMA_HandleTypeDef *hdma)
	DMA SMARTCARD receive process complete callback. More...
static void	SMARTCARD_DMAError (DMA_HandleTypeDef *hdma)
	DMA SMARTCARD communication error callback. More...
static void	SMARTCARD_DMAAbortOnError (DMA_HandleTypeDef *hdma)
	DMA SMARTCARD communication abort callback, when initiated by HAL services on Error (To be called at end of DMA Abort procedure following error occurrence). More...
static void	SMARTCARD_DMATxAbortCallback (DMA_HandleTypeDef *hdma)
	DMA SMARTCARD Tx communication abort callback, when initiated by user (To be called at end of DMA Tx Abort procedure following user abort request). More...
static void	SMARTCARD_DMARxAbortCallback (DMA_HandleTypeDef *hdma)
	DMA SMARTCARD Rx communication abort callback, when initiated by user (To be called at end of DMA Rx Abort procedure following user abort request). More...
static void	SMARTCARD_DMATxOnlyAbortCallback (DMA_HandleTypeDef *hdma)
	DMA SMARTCARD Tx communication abort callback, when initiated by user by a call to HAL_SMARTCARD_AbortTransmit_IT API (Abort only Tx transfer) (This callback is executed at end of DMA Tx Abort procedure following user abort request, and leads to user Tx Abort Complete callback execution). More...
static void	SMARTCARD_DMARxOnlyAbortCallback (DMA_HandleTypeDef *hdma)
	DMA SMARTCARD Rx communication abort callback, when initiated by user by a call to HAL_SMARTCARD_AbortReceive_IT API (Abort only Rx transfer) (This callback is executed at end of DMA Rx Abort procedure following user abort request, and leads to user Rx Abort Complete callback execution). More...
static void	SMARTCARD_TxISR (SMARTCARD_HandleTypeDef *hsmartcard)
	Send an amount of data in non-blocking mode. More...
static void	SMARTCARD_TxISR_FIFOEN (SMARTCARD_HandleTypeDef *hsmartcard)
	Send an amount of data in non-blocking mode. More...
static void	SMARTCARD_EndTransmit_IT (SMARTCARD_HandleTypeDef *hsmartcard)
	Wrap up transmission in non-blocking mode. More...
static void	SMARTCARD_RxISR (SMARTCARD_HandleTypeDef *hsmartcard)
	Receive an amount of data in non-blocking mode. More...
static void	SMARTCARD_RxISR_FIFOEN (SMARTCARD_HandleTypeDef *hsmartcard)
	Receive an amount of data in non-blocking mode. More...

Detailed Description

Function Documentation

SMARTCARD_AdvFeatureConfig()

static void SMARTCARD_AdvFeatureConfig ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

Configure the SMARTCARD associated USART peripheral advanced features.

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

None

Definition at line 2554 of file stm32l4xx_hal_smartcard.c.

{
  /* Check whether the set of advanced features to configure is properly set */
  assert_param(IS_SMARTCARD_ADVFEATURE_INIT(hsmartcard->AdvancedInit.AdvFeatureInit));

  /* if required, configure TX pin active level inversion */
  if (HAL_IS_BIT_SET(hsmartcard->AdvancedInit.AdvFeatureInit, SMARTCARD_ADVFEATURE_TXINVERT_INIT))
  {
    assert_param(IS_SMARTCARD_ADVFEATURE_TXINV(hsmartcard->AdvancedInit.TxPinLevelInvert));
    MODIFY_REG(hsmartcard->Instance->CR2, USART_CR2_TXINV, hsmartcard->AdvancedInit.TxPinLevelInvert);
  }

  /* if required, configure RX pin active level inversion */
  if (HAL_IS_BIT_SET(hsmartcard->AdvancedInit.AdvFeatureInit, SMARTCARD_ADVFEATURE_RXINVERT_INIT))
  {
    assert_param(IS_SMARTCARD_ADVFEATURE_RXINV(hsmartcard->AdvancedInit.RxPinLevelInvert));
    MODIFY_REG(hsmartcard->Instance->CR2, USART_CR2_RXINV, hsmartcard->AdvancedInit.RxPinLevelInvert);
  }

  /* if required, configure data inversion */
  if (HAL_IS_BIT_SET(hsmartcard->AdvancedInit.AdvFeatureInit, SMARTCARD_ADVFEATURE_DATAINVERT_INIT))
  {
    assert_param(IS_SMARTCARD_ADVFEATURE_DATAINV(hsmartcard->AdvancedInit.DataInvert));
    MODIFY_REG(hsmartcard->Instance->CR2, USART_CR2_DATAINV, hsmartcard->AdvancedInit.DataInvert);
  }

  /* if required, configure RX/TX pins swap */
  if (HAL_IS_BIT_SET(hsmartcard->AdvancedInit.AdvFeatureInit, SMARTCARD_ADVFEATURE_SWAP_INIT))
  {
    assert_param(IS_SMARTCARD_ADVFEATURE_SWAP(hsmartcard->AdvancedInit.Swap));
    MODIFY_REG(hsmartcard->Instance->CR2, USART_CR2_SWAP, hsmartcard->AdvancedInit.Swap);
  }

  /* if required, configure RX overrun detection disabling */
  if (HAL_IS_BIT_SET(hsmartcard->AdvancedInit.AdvFeatureInit, SMARTCARD_ADVFEATURE_RXOVERRUNDISABLE_INIT))
  {
    assert_param(IS_SMARTCARD_OVERRUN(hsmartcard->AdvancedInit.OverrunDisable));
    MODIFY_REG(hsmartcard->Instance->CR3, USART_CR3_OVRDIS, hsmartcard->AdvancedInit.OverrunDisable);
  }

  /* if required, configure DMA disabling on reception error */
  if (HAL_IS_BIT_SET(hsmartcard->AdvancedInit.AdvFeatureInit, SMARTCARD_ADVFEATURE_DMADISABLEONERROR_INIT))
  {
    assert_param(IS_SMARTCARD_ADVFEATURE_DMAONRXERROR(hsmartcard->AdvancedInit.DMADisableonRxError));
    MODIFY_REG(hsmartcard->Instance->CR3, USART_CR3_DDRE, hsmartcard->AdvancedInit.DMADisableonRxError);
  }

  /* if required, configure MSB first on communication line */
  if (HAL_IS_BIT_SET(hsmartcard->AdvancedInit.AdvFeatureInit, SMARTCARD_ADVFEATURE_MSBFIRST_INIT))
  {
    assert_param(IS_SMARTCARD_ADVFEATURE_MSBFIRST(hsmartcard->AdvancedInit.MSBFirst));
    MODIFY_REG(hsmartcard->Instance->CR2, USART_CR2_MSBFIRST, hsmartcard->AdvancedInit.MSBFirst);
  }

}

SMARTCARD_CheckIdleState()

static HAL_StatusTypeDef SMARTCARD_CheckIdleState ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

Check the SMARTCARD Idle State.

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

HAL

status

Definition at line 2616 of file stm32l4xx_hal_smartcard.c.

{
  uint32_t tickstart;

  /* Initialize the SMARTCARD ErrorCode */
  hsmartcard->ErrorCode = HAL_SMARTCARD_ERROR_NONE;

  /* Init tickstart for timeout management */
  tickstart = HAL_GetTick();

  /* Check if the Transmitter is enabled */
  if ((hsmartcard->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
  {
    /* Wait until TEACK flag is set */
    if (SMARTCARD_WaitOnFlagUntilTimeout(hsmartcard, USART_ISR_TEACK, RESET, tickstart,
                                         SMARTCARD_TEACK_REACK_TIMEOUT) != HAL_OK)
    {
      /* Timeout occurred */
      return HAL_TIMEOUT;
    }
  }
  /* Check if the Receiver is enabled */
  if ((hsmartcard->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
  {
    /* Wait until REACK flag is set */
    if (SMARTCARD_WaitOnFlagUntilTimeout(hsmartcard, USART_ISR_REACK, RESET, tickstart,
                                         SMARTCARD_TEACK_REACK_TIMEOUT) != HAL_OK)
    {
      /* Timeout occurred */
      return HAL_TIMEOUT;
    }
  }

  /* Initialize the SMARTCARD states */
  hsmartcard->gState  = HAL_SMARTCARD_STATE_READY;
  hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;

  /* Process Unlocked */
  __HAL_UNLOCK(hsmartcard);

  return HAL_OK;
}

SMARTCARD_DMAAbortOnError()

static void SMARTCARD_DMAAbortOnError ( DMA_HandleTypeDef *  hdma )

static

DMA SMARTCARD communication abort callback, when initiated by HAL services on Error (To be called at end of DMA Abort procedure following error occurrence).

Parameters

hdma	DMA handle.

Return values

None

Definition at line 2839 of file stm32l4xx_hal_smartcard.c.

{
  SMARTCARD_HandleTypeDef *hsmartcard = (SMARTCARD_HandleTypeDef *)(hdma->Parent);
  hsmartcard->RxXferCount = 0U;
  hsmartcard->TxXferCount = 0U;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
  /* Call registered user error callback */
  hsmartcard->ErrorCallback(hsmartcard);
#else
  /* Call legacy weak user error callback */
  HAL_SMARTCARD_ErrorCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
}

SMARTCARD_DMAError()

static void SMARTCARD_DMAError ( DMA_HandleTypeDef *  hdma )

static

DMA SMARTCARD communication error callback.

Parameters

hdma	Pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA module.

Return values

None

Definition at line 2799 of file stm32l4xx_hal_smartcard.c.

{
  SMARTCARD_HandleTypeDef *hsmartcard = (SMARTCARD_HandleTypeDef *)(hdma->Parent);

  /* Stop SMARTCARD DMA Tx request if ongoing */
  if (hsmartcard->gState == HAL_SMARTCARD_STATE_BUSY_TX)
  {
    if (HAL_IS_BIT_SET(hsmartcard->Instance->CR3, USART_CR3_DMAT))
    {
      hsmartcard->TxXferCount = 0U;
      SMARTCARD_EndTxTransfer(hsmartcard);
    }
  }

  /* Stop SMARTCARD DMA Rx request if ongoing */
  if (hsmartcard->RxState == HAL_SMARTCARD_STATE_BUSY_RX)
  {
    if (HAL_IS_BIT_SET(hsmartcard->Instance->CR3, USART_CR3_DMAR))
    {
      hsmartcard->RxXferCount = 0U;
      SMARTCARD_EndRxTransfer(hsmartcard);
    }
  }

  hsmartcard->ErrorCode |= HAL_SMARTCARD_ERROR_DMA;
#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
  /* Call registered user error callback */
  hsmartcard->ErrorCallback(hsmartcard);
#else
  /* Call legacy weak user error callback */
  HAL_SMARTCARD_ErrorCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
}

SMARTCARD_DMAReceiveCplt()

static void SMARTCARD_DMAReceiveCplt ( DMA_HandleTypeDef *  hdma )

static

DMA SMARTCARD receive process complete callback.

Parameters

hdma	Pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA module.

Return values

None

Definition at line 2768 of file stm32l4xx_hal_smartcard.c.

{
  SMARTCARD_HandleTypeDef *hsmartcard = (SMARTCARD_HandleTypeDef *)(hdma->Parent);
  hsmartcard->RxXferCount = 0U;

  /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */
  CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_PEIE);
  CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE);

  /* Disable the DMA transfer for the receiver request by resetting the DMAR bit
     in the SMARTCARD associated USART CR3 register */
  CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_DMAR);

  /* At end of Rx process, restore hsmartcard->RxState to Ready */
  hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
  /* Call registered Rx complete callback */
  hsmartcard->RxCpltCallback(hsmartcard);
#else
  /* Call legacy weak Rx complete callback */
  HAL_SMARTCARD_RxCpltCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
}

SMARTCARD_DMARxAbortCallback()

static void SMARTCARD_DMARxAbortCallback ( DMA_HandleTypeDef *  hdma )

static

DMA SMARTCARD Rx communication abort callback, when initiated by user (To be called at end of DMA Rx Abort procedure following user abort request).

Note

When this callback is executed, User Abort complete call back is called only if no Abort still ongoing for Tx DMA Handle.

Parameters

hdma	DMA handle.

Return values

None

Definition at line 2911 of file stm32l4xx_hal_smartcard.c.

{
  SMARTCARD_HandleTypeDef *hsmartcard = (SMARTCARD_HandleTypeDef *)(hdma->Parent);

  hsmartcard->hdmarx->XferAbortCallback = NULL;

  /* Check if an Abort process is still ongoing */
  if (hsmartcard->hdmatx != NULL)
  {
    if (hsmartcard->hdmatx->XferAbortCallback != NULL)
    {
      return;
    }
  }

  /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
  hsmartcard->TxXferCount = 0U;
  hsmartcard->RxXferCount = 0U;

  /* Reset errorCode */
  hsmartcard->ErrorCode = HAL_SMARTCARD_ERROR_NONE;

  /* Clear the Error flags in the ICR register */
  __HAL_SMARTCARD_CLEAR_FLAG(hsmartcard,
                             SMARTCARD_CLEAR_OREF | SMARTCARD_CLEAR_NEF | SMARTCARD_CLEAR_PEF | SMARTCARD_CLEAR_FEF | SMARTCARD_CLEAR_RTOF |
                             SMARTCARD_CLEAR_EOBF);

  /* Restore hsmartcard->gState and hsmartcard->RxState to Ready */
  hsmartcard->gState  = HAL_SMARTCARD_STATE_READY;
  hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
  /* Call registered Abort complete callback */
  hsmartcard->AbortCpltCallback(hsmartcard);
#else
  /* Call legacy weak Abort complete callback */
  HAL_SMARTCARD_AbortCpltCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
}

SMARTCARD_DMARxOnlyAbortCallback()

static void SMARTCARD_DMARxOnlyAbortCallback ( DMA_HandleTypeDef *  hdma )

static

DMA SMARTCARD Rx communication abort callback, when initiated by user by a call to HAL_SMARTCARD_AbortReceive_IT API (Abort only Rx transfer) (This callback is executed at end of DMA Rx Abort procedure following user abort request, and leads to user Rx Abort Complete callback execution).

Parameters

hdma	DMA handle.

Return values

None

Definition at line 2989 of file stm32l4xx_hal_smartcard.c.

{
  SMARTCARD_HandleTypeDef *hsmartcard = (SMARTCARD_HandleTypeDef *)(hdma->Parent);

  hsmartcard->RxXferCount = 0U;

  /* Clear the Error flags in the ICR register */
  __HAL_SMARTCARD_CLEAR_FLAG(hsmartcard,
                             SMARTCARD_CLEAR_OREF | SMARTCARD_CLEAR_NEF | SMARTCARD_CLEAR_PEF | SMARTCARD_CLEAR_FEF | SMARTCARD_CLEAR_RTOF |
                             SMARTCARD_CLEAR_EOBF);

  /* Restore hsmartcard->RxState to Ready */
  hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
  /* Call registered Abort Receive Complete Callback */
  hsmartcard->AbortReceiveCpltCallback(hsmartcard);
#else
  /* Call legacy weak Abort Receive Complete Callback */
  HAL_SMARTCARD_AbortReceiveCpltCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
}

SMARTCARD_DMATransmitCplt()

static void SMARTCARD_DMATransmitCplt ( DMA_HandleTypeDef *  hdma )

static

DMA SMARTCARD transmit process complete callback.

Parameters

hdma	Pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA module.

Return values

None

Definition at line 2749 of file stm32l4xx_hal_smartcard.c.

{
  SMARTCARD_HandleTypeDef *hsmartcard = (SMARTCARD_HandleTypeDef *)(hdma->Parent);
  hsmartcard->TxXferCount = 0U;

  /* Disable the DMA transfer for transmit request by resetting the DMAT bit
  in the SMARTCARD associated USART CR3 register */
  CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_DMAT);

  /* Enable the SMARTCARD Transmit Complete Interrupt */
  __HAL_SMARTCARD_ENABLE_IT(hsmartcard, hsmartcard->AdvancedInit.TxCompletionIndication);
}

SMARTCARD_DMATxAbortCallback()

static void SMARTCARD_DMATxAbortCallback ( DMA_HandleTypeDef *  hdma )

static

DMA SMARTCARD Tx communication abort callback, when initiated by user (To be called at end of DMA Tx Abort procedure following user abort request).

Note

When this callback is executed, User Abort complete call back is called only if no Abort still ongoing for Rx DMA Handle.

Parameters

hdma	DMA handle.

Return values

None

Definition at line 2862 of file stm32l4xx_hal_smartcard.c.

{
  SMARTCARD_HandleTypeDef *hsmartcard = (SMARTCARD_HandleTypeDef *)(hdma->Parent);

  hsmartcard->hdmatx->XferAbortCallback = NULL;

  /* Check if an Abort process is still ongoing */
  if (hsmartcard->hdmarx != NULL)
  {
    if (hsmartcard->hdmarx->XferAbortCallback != NULL)
    {
      return;
    }
  }

  /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
  hsmartcard->TxXferCount = 0U;
  hsmartcard->RxXferCount = 0U;

  /* Reset errorCode */
  hsmartcard->ErrorCode = HAL_SMARTCARD_ERROR_NONE;

  /* Clear the Error flags in the ICR register */
  __HAL_SMARTCARD_CLEAR_FLAG(hsmartcard,
                             SMARTCARD_CLEAR_OREF | SMARTCARD_CLEAR_NEF | SMARTCARD_CLEAR_PEF | SMARTCARD_CLEAR_FEF | SMARTCARD_CLEAR_RTOF |
                             SMARTCARD_CLEAR_EOBF);

  /* Restore hsmartcard->gState and hsmartcard->RxState to Ready */
  hsmartcard->gState  = HAL_SMARTCARD_STATE_READY;
  hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
  /* Call registered Abort complete callback */
  hsmartcard->AbortCpltCallback(hsmartcard);
#else
  /* Call legacy weak Abort complete callback */
  HAL_SMARTCARD_AbortCpltCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
}

SMARTCARD_DMATxOnlyAbortCallback()

static void SMARTCARD_DMATxOnlyAbortCallback ( DMA_HandleTypeDef *  hdma )

static

DMA SMARTCARD Tx communication abort callback, when initiated by user by a call to HAL_SMARTCARD_AbortTransmit_IT API (Abort only Tx transfer) (This callback is executed at end of DMA Tx Abort procedure following user abort request, and leads to user Tx Abort Complete callback execution).

Parameters

hdma	DMA handle.

Return values

None

Definition at line 2960 of file stm32l4xx_hal_smartcard.c.

{
  SMARTCARD_HandleTypeDef *hsmartcard = (SMARTCARD_HandleTypeDef *)(hdma->Parent);

  hsmartcard->TxXferCount = 0U;

  /* Clear the Error flags in the ICR register */
  __HAL_SMARTCARD_CLEAR_FLAG(hsmartcard, SMARTCARD_CLEAR_FEF);

  /* Restore hsmartcard->gState to Ready */
  hsmartcard->gState = HAL_SMARTCARD_STATE_READY;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
  /* Call registered Abort Transmit Complete Callback */
  hsmartcard->AbortTransmitCpltCallback(hsmartcard);
#else
  /* Call legacy weak Abort Transmit Complete Callback */
  HAL_SMARTCARD_AbortTransmitCpltCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
}

SMARTCARD_EndRxTransfer()

static void SMARTCARD_EndRxTransfer ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

End ongoing Rx transfer on UART peripheral (following error detection or Reception completion).

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

None

Definition at line 2728 of file stm32l4xx_hal_smartcard.c.

{
  /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
#if defined(USART_CR1_FIFOEN)
  CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE));
#else
  CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
#endif /* USART_CR1_FIFOEN */
  CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE);

  /* At end of Rx process, restore hsmartcard->RxState to Ready */
  hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;
}

SMARTCARD_EndTransmit_IT()

static void SMARTCARD_EndTransmit_IT ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

Wrap up transmission in non-blocking mode.

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

None

Definition at line 3095 of file stm32l4xx_hal_smartcard.c.

{
  /* Disable the SMARTCARD Transmit Complete Interrupt */
  __HAL_SMARTCARD_DISABLE_IT(hsmartcard, hsmartcard->AdvancedInit.TxCompletionIndication);

  /* Check if a receive process is ongoing or not. If not disable ERR IT */
  if (hsmartcard->RxState == HAL_SMARTCARD_STATE_READY)
  {
    /* Disable the SMARTCARD Error Interrupt: (Frame error) */
    CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE);
  }

  /* Re-enable Rx at end of transmission if initial mode is Rx/Tx */
  if (hsmartcard->Init.Mode == SMARTCARD_MODE_TX_RX)
  {
    /* Disable the Peripheral first to update modes */
    CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_UE);
    SET_BIT(hsmartcard->Instance->CR1, USART_CR1_RE);
    /* Enable the Peripheral */
    SET_BIT(hsmartcard->Instance->CR1, USART_CR1_UE);
  }

  /* Tx process is ended, restore hsmartcard->gState to Ready */
  hsmartcard->gState = HAL_SMARTCARD_STATE_READY;

  /* Clear TxISR function pointer */
  hsmartcard->TxISR = NULL;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
  /* Call registered Tx complete callback */
  hsmartcard->TxCpltCallback(hsmartcard);
#else
  /* Call legacy weak Tx complete callback */
  HAL_SMARTCARD_TxCpltCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
}

SMARTCARD_EndTxTransfer()

static void SMARTCARD_EndTxTransfer ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

End ongoing Tx transfer on SMARTCARD peripheral (following error detection or Transmit completion).

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

None

Definition at line 2707 of file stm32l4xx_hal_smartcard.c.

{
  /* Disable TXEIE, TCIE and ERR (Frame error, noise error, overrun error) interrupts */
#if defined(USART_CR1_FIFOEN)
  CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_TXEIE_TXFNFIE | USART_CR1_TCIE));
#else
  CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
#endif /* USART_CR1_FIFOEN */
  CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE);

  /* At end of Tx process, restore hsmartcard->gState to Ready */
  hsmartcard->gState = HAL_SMARTCARD_STATE_READY;
}

SMARTCARD_InitCallbacksToDefault()

void SMARTCARD_InitCallbacksToDefault

(

SMARTCARD_HandleTypeDef *

hsmartcard

)

Initialize the callbacks to their default values.

Parameters

hsmartcard

SMARTCARD handle.

Return values

none

Definition at line 2375 of file stm32l4xx_hal_smartcard.c.

{
  /* Init the SMARTCARD Callback settings */
  hsmartcard->TxCpltCallback            = HAL_SMARTCARD_TxCpltCallback;            /* Legacy weak TxCpltCallback            */
  hsmartcard->RxCpltCallback            = HAL_SMARTCARD_RxCpltCallback;            /* Legacy weak RxCpltCallback            */
  hsmartcard->ErrorCallback             = HAL_SMARTCARD_ErrorCallback;             /* Legacy weak ErrorCallback             */
  hsmartcard->AbortCpltCallback         = HAL_SMARTCARD_AbortCpltCallback;         /* Legacy weak AbortCpltCallback         */
  hsmartcard->AbortTransmitCpltCallback = HAL_SMARTCARD_AbortTransmitCpltCallback; /* Legacy weak AbortTransmitCpltCallback */
  hsmartcard->AbortReceiveCpltCallback  = HAL_SMARTCARD_AbortReceiveCpltCallback;  /* Legacy weak AbortReceiveCpltCallback  */
#if defined(USART_CR1_FIFOEN)
  hsmartcard->RxFifoFullCallback        = HAL_SMARTCARDEx_RxFifoFullCallback;      /* Legacy weak RxFifoFullCallback        */
  hsmartcard->TxFifoEmptyCallback       = HAL_SMARTCARDEx_TxFifoEmptyCallback;     /* Legacy weak TxFifoEmptyCallback       */
#endif /* USART_CR1_FIFOEN */

}

SMARTCARD_RxISR()

static void SMARTCARD_RxISR ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

Receive an amount of data in non-blocking mode.

Note

Function called under interruption only, once interruptions have been enabled by HAL_SMARTCARD_Receive_IT() and when the FIFO mode is disabled.

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

None

Definition at line 3141 of file stm32l4xx_hal_smartcard.c.

{
  /* Check that a Rx process is ongoing */
  if (hsmartcard->RxState == HAL_SMARTCARD_STATE_BUSY_RX)
  {
    *hsmartcard->pRxBuffPtr = (uint8_t)(hsmartcard->Instance->RDR & (uint8_t)0xFF);
    hsmartcard->pRxBuffPtr++;

    hsmartcard->RxXferCount--;
    if (hsmartcard->RxXferCount == 0U)
    {
#if defined(USART_CR1_FIFOEN)
      CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_RXNEIE_RXFNEIE);
#else
      CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_RXNEIE);
#endif /* USART_CR1_FIFOEN */

      /* Check if a transmit process is ongoing or not. If not disable ERR IT */
      if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY)
      {
        /* Disable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */
        CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE);
      }

      /* Disable the SMARTCARD Parity Error Interrupt */
      CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_PEIE);

      hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;

      /* Clear RxISR function pointer */
      hsmartcard->RxISR = NULL;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
      /* Call registered Rx complete callback */
      hsmartcard->RxCpltCallback(hsmartcard);
#else
      /* Call legacy weak Rx complete callback */
      HAL_SMARTCARD_RxCpltCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
    }
  }
  else
  {
    /* Clear RXNE interrupt flag */
    __HAL_SMARTCARD_SEND_REQ(hsmartcard, SMARTCARD_RXDATA_FLUSH_REQUEST);
  }
}

SMARTCARD_RxISR_FIFOEN()

static void SMARTCARD_RxISR_FIFOEN ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

Receive an amount of data in non-blocking mode.

Note

Function called under interruption only, once interruptions have been enabled by HAL_SMARTCARD_Receive_IT() and when the FIFO mode is enabled.

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

None

Definition at line 3199 of file stm32l4xx_hal_smartcard.c.

{
  uint16_t   nb_rx_data;
  uint16_t rxdatacount;

  /* Check that a Rx process is ongoing */
  if (hsmartcard->RxState == HAL_SMARTCARD_STATE_BUSY_RX)
  {
    for (nb_rx_data = hsmartcard->NbRxDataToProcess ; nb_rx_data > 0U ; nb_rx_data--)
    {
      *hsmartcard->pRxBuffPtr = (uint8_t)(hsmartcard->Instance->RDR & (uint8_t)0xFF);
      hsmartcard->pRxBuffPtr++;

      hsmartcard->RxXferCount--;
      if (hsmartcard->RxXferCount == 0U)
      {
        CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_RXNEIE_RXFNEIE);

        /* Check if a transmit process is ongoing or not. If not disable ERR IT */
        if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY)
        {
          /* Disable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */
          CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE);
        }

        /* Disable the SMARTCARD Parity Error Interrupt */
        CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_PEIE);

        hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;

        /* Clear RxISR function pointer */
        hsmartcard->RxISR = NULL;

#if (USE_HAL_SMARTCARD_REGISTER_CALLBACKS == 1)
        /* Call registered Rx complete callback */
        hsmartcard->RxCpltCallback(hsmartcard);
#else
        /* Call legacy weak Rx complete callback */
        HAL_SMARTCARD_RxCpltCallback(hsmartcard);
#endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACK */
      }
    }

    /* When remaining number of bytes to receive is less than the RX FIFO
    threshold, next incoming frames are processed as if FIFO mode was
    disabled (i.e. one interrupt per received frame).
    */
    rxdatacount = hsmartcard->RxXferCount;
    if (((rxdatacount != 0U)) && (rxdatacount < hsmartcard->NbRxDataToProcess))
    {
      /* Disable the UART RXFT interrupt*/
      CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_RXFTIE);

      /* Update the RxISR function pointer */
      hsmartcard->RxISR = SMARTCARD_RxISR;

      /* Enable the UART Data Register Not Empty interrupt */
      SET_BIT(hsmartcard->Instance->CR1, USART_CR1_RXNEIE_RXFNEIE);
    }
  }
  else
  {
    /* Clear RXNE interrupt flag */
    __HAL_SMARTCARD_SEND_REQ(hsmartcard, SMARTCARD_RXDATA_FLUSH_REQUEST);
  }
}

SMARTCARD_SetConfig()

static HAL_StatusTypeDef SMARTCARD_SetConfig ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

Configure the SMARTCARD associated USART peripheral.

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

HAL

status

Definition at line 2398 of file stm32l4xx_hal_smartcard.c.

{
  uint32_t tmpreg;
  SMARTCARD_ClockSourceTypeDef clocksource;
  HAL_StatusTypeDef ret = HAL_OK;
#if defined(USART_PRESC_PRESCALER)
  const uint16_t SMARTCARDPrescTable[12] = {1U, 2U, 4U, 6U, 8U, 10U, 12U, 16U, 32U, 64U, 128U, 256U};
#endif /* USART_PRESC_PRESCALER */

  /* Check the parameters */
  assert_param(IS_SMARTCARD_INSTANCE(hsmartcard->Instance));
  assert_param(IS_SMARTCARD_BAUDRATE(hsmartcard->Init.BaudRate));
  assert_param(IS_SMARTCARD_WORD_LENGTH(hsmartcard->Init.WordLength));
  assert_param(IS_SMARTCARD_STOPBITS(hsmartcard->Init.StopBits));
  assert_param(IS_SMARTCARD_PARITY(hsmartcard->Init.Parity));
  assert_param(IS_SMARTCARD_MODE(hsmartcard->Init.Mode));
  assert_param(IS_SMARTCARD_POLARITY(hsmartcard->Init.CLKPolarity));
  assert_param(IS_SMARTCARD_PHASE(hsmartcard->Init.CLKPhase));
  assert_param(IS_SMARTCARD_LASTBIT(hsmartcard->Init.CLKLastBit));
  assert_param(IS_SMARTCARD_ONE_BIT_SAMPLE(hsmartcard->Init.OneBitSampling));
  assert_param(IS_SMARTCARD_NACK(hsmartcard->Init.NACKEnable));
  assert_param(IS_SMARTCARD_TIMEOUT(hsmartcard->Init.TimeOutEnable));
  assert_param(IS_SMARTCARD_AUTORETRY_COUNT(hsmartcard->Init.AutoRetryCount));
#if defined(USART_PRESC_PRESCALER)
  assert_param(IS_SMARTCARD_CLOCKPRESCALER(hsmartcard->Init.ClockPrescaler));
#endif /* USART_PRESC_PRESCALER */

  /*-------------------------- USART CR1 Configuration -----------------------*/
  /* In SmartCard mode, M and PCE are forced to 1 (8 bits + parity).
   * Oversampling is forced to 16 (OVER8 = 0).
   * Configure the Parity and Mode:
   *  set PS bit according to hsmartcard->Init.Parity value
   *  set TE and RE bits according to hsmartcard->Init.Mode value */
#if defined(USART_CR1_FIFOEN)
  tmpreg = (uint32_t) hsmartcard->Init.Parity | hsmartcard->Init.Mode;
  tmpreg |= (uint32_t) hsmartcard->Init.WordLength | hsmartcard->FifoMode;
#else
  tmpreg = (uint32_t)(hsmartcard->Init.Parity | hsmartcard->Init.Mode | hsmartcard->Init.WordLength);
#endif /* USART_CR1_FIFOEN */
  MODIFY_REG(hsmartcard->Instance->CR1, USART_CR1_FIELDS, tmpreg);

  /*-------------------------- USART CR2 Configuration -----------------------*/
  tmpreg = hsmartcard->Init.StopBits;
  /* Synchronous mode is activated by default */
  tmpreg |= (uint32_t) USART_CR2_CLKEN | hsmartcard->Init.CLKPolarity;
  tmpreg |= (uint32_t) hsmartcard->Init.CLKPhase | hsmartcard->Init.CLKLastBit;
  tmpreg |= (uint32_t) hsmartcard->Init.TimeOutEnable;
  MODIFY_REG(hsmartcard->Instance->CR2, USART_CR2_FIELDS, tmpreg);

  /*-------------------------- USART CR3 Configuration -----------------------*/
  /* Configure
   * - one-bit sampling method versus three samples' majority rule
   *   according to hsmartcard->Init.OneBitSampling
   * - NACK transmission in case of parity error according
   *   to hsmartcard->Init.NACKEnable
   * - autoretry counter according to hsmartcard->Init.AutoRetryCount */

  tmpreg = (uint32_t) hsmartcard->Init.OneBitSampling | hsmartcard->Init.NACKEnable;
  tmpreg |= ((uint32_t)hsmartcard->Init.AutoRetryCount << USART_CR3_SCARCNT_Pos);
  MODIFY_REG(hsmartcard->Instance->CR3, USART_CR3_FIELDS, tmpreg);

#if defined(USART_PRESC_PRESCALER)
  /*--------------------- SMARTCARD clock PRESC Configuration ----------------*/
  /* Configure
  * - SMARTCARD Clock Prescaler: set PRESCALER according to hsmartcard->Init.ClockPrescaler value */
  MODIFY_REG(hsmartcard->Instance->PRESC, USART_PRESC_PRESCALER, hsmartcard->Init.ClockPrescaler);
#endif /* USART_PRESC_PRESCALER */

  /*-------------------------- USART GTPR Configuration ----------------------*/
  tmpreg = (hsmartcard->Init.Prescaler | ((uint32_t)hsmartcard->Init.GuardTime << USART_GTPR_GT_Pos));
  MODIFY_REG(hsmartcard->Instance->GTPR, (uint16_t)(USART_GTPR_GT | USART_GTPR_PSC), (uint16_t)tmpreg);

  /*-------------------------- USART RTOR Configuration ----------------------*/
  tmpreg = ((uint32_t)hsmartcard->Init.BlockLength << USART_RTOR_BLEN_Pos);
  if (hsmartcard->Init.TimeOutEnable == SMARTCARD_TIMEOUT_ENABLE)
  {
    assert_param(IS_SMARTCARD_TIMEOUT_VALUE(hsmartcard->Init.TimeOutValue));
    tmpreg |= (uint32_t) hsmartcard->Init.TimeOutValue;
  }
  MODIFY_REG(hsmartcard->Instance->RTOR, (USART_RTOR_RTO | USART_RTOR_BLEN), tmpreg);

  /*-------------------------- USART BRR Configuration -----------------------*/
  SMARTCARD_GETCLOCKSOURCE(hsmartcard, clocksource);
  tmpreg =   0U;
  switch (clocksource)
  {
    case SMARTCARD_CLOCKSOURCE_PCLK1:
#if defined(USART_PRESC_PRESCALER)
      tmpreg = (uint16_t)(((HAL_RCC_GetPCLK1Freq() / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#else
      tmpreg = (uint16_t)((HAL_RCC_GetPCLK1Freq() + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#endif /* USART_PRESC_PRESCALER */
      break;
    case SMARTCARD_CLOCKSOURCE_PCLK2:
#if defined(USART_PRESC_PRESCALER)
      tmpreg = (uint16_t)(((HAL_RCC_GetPCLK2Freq() / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#else
      tmpreg = (uint16_t)((HAL_RCC_GetPCLK2Freq() + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#endif /* USART_PRESC_PRESCALER */
      break;
    case SMARTCARD_CLOCKSOURCE_HSI:
#if defined(USART_PRESC_PRESCALER)
      tmpreg = (uint16_t)(((HSI_VALUE / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#else
      tmpreg = (uint16_t)((HSI_VALUE + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#endif /* USART_PRESC_PRESCALER */
      break;
    case SMARTCARD_CLOCKSOURCE_SYSCLK:
#if defined(USART_PRESC_PRESCALER)
      tmpreg = (uint16_t)(((HAL_RCC_GetSysClockFreq() / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#else
      tmpreg = (uint16_t)((HAL_RCC_GetSysClockFreq() + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#endif /* USART_PRESC_PRESCALER */
      break;
    case SMARTCARD_CLOCKSOURCE_LSE:
#if defined(USART_PRESC_PRESCALER)
      tmpreg = (uint16_t)(((uint16_t)(LSE_VALUE / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#else
      tmpreg = (uint16_t)((LSE_VALUE + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate);
#endif /* USART_PRESC_PRESCALER */
      break;
    default:
      ret = HAL_ERROR;
      break;
  }

  /* USARTDIV must be greater than or equal to 0d16 */
  if ((tmpreg >= USART_BRR_MIN) && (tmpreg <= USART_BRR_MAX))
  {
    hsmartcard->Instance->BRR = tmpreg;
  }
  else
  {
    ret = HAL_ERROR;
  }

#if defined(USART_CR1_FIFOEN)
  /* Initialize the number of data to process during RX/TX ISR execution */
  hsmartcard->NbTxDataToProcess = 1U;
  hsmartcard->NbRxDataToProcess = 1U;
#endif /* USART_CR1_FIFOEN */

  /* Clear ISR function pointers */
  hsmartcard->RxISR   = NULL;
  hsmartcard->TxISR   = NULL;

  return ret;
}

SMARTCARD_TxISR()

static void SMARTCARD_TxISR ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

Send an amount of data in non-blocking mode.

Note

Function called under interruption only, once interruptions have been enabled by HAL_SMARTCARD_Transmit_IT() and when the FIFO mode is disabled.

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

None

Definition at line 3021 of file stm32l4xx_hal_smartcard.c.

{
  /* Check that a Tx process is ongoing */
  if (hsmartcard->gState == HAL_SMARTCARD_STATE_BUSY_TX)
  {
    if (hsmartcard->TxXferCount == 0U)
    {
      /* Disable the SMARTCARD Transmit Data Register Empty Interrupt */
#if defined(USART_CR1_FIFOEN)
      CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_TXEIE_TXFNFIE);
#else
      CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_TXEIE);
#endif /* USART_CR1_FIFOEN */

      /* Enable the SMARTCARD Transmit Complete Interrupt */
      __HAL_SMARTCARD_ENABLE_IT(hsmartcard, hsmartcard->AdvancedInit.TxCompletionIndication);
    }
    else
    {
      hsmartcard->Instance->TDR = (uint8_t)(*hsmartcard->pTxBuffPtr & 0xFFU);
      hsmartcard->pTxBuffPtr++;
      hsmartcard->TxXferCount--;
    }
  }
}

SMARTCARD_TxISR_FIFOEN()

static void SMARTCARD_TxISR_FIFOEN ( SMARTCARD_HandleTypeDef *  hsmartcard )

static

Send an amount of data in non-blocking mode.

Note

Function called under interruption only, once interruptions have been enabled by HAL_SMARTCARD_Transmit_IT() and when the FIFO mode is enabled.

Parameters

hsmartcard

Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.

Return values

None

Definition at line 3057 of file stm32l4xx_hal_smartcard.c.

{
  uint16_t   nb_tx_data;

  /* Check that a Tx process is ongoing */
  if (hsmartcard->gState == HAL_SMARTCARD_STATE_BUSY_TX)
  {
    for (nb_tx_data = hsmartcard->NbTxDataToProcess ; nb_tx_data > 0U ; nb_tx_data--)
    {
      if (hsmartcard->TxXferCount == 0U)
      {
        /* Disable the SMARTCARD Transmit Data Register Empty Interrupt */
        CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_TXEIE_TXFNFIE);

        /* Enable the SMARTCARD Transmit Complete Interrupt */
        __HAL_SMARTCARD_ENABLE_IT(hsmartcard, hsmartcard->AdvancedInit.TxCompletionIndication);
      }
      else if (READ_BIT(hsmartcard->Instance->ISR, USART_ISR_TXE_TXFNF) != 0U)
      {
        hsmartcard->Instance->TDR = (uint8_t)(*hsmartcard->pTxBuffPtr & 0xFFU);
        hsmartcard->pTxBuffPtr++;
        hsmartcard->TxXferCount--;
      }
      else
      {
        /* Nothing to do */
      }
    }
  }
}

SMARTCARD_WaitOnFlagUntilTimeout()

static HAL_StatusTypeDef SMARTCARD_WaitOnFlagUntilTimeout ( SMARTCARD_HandleTypeDef *  hsmartcard, uint32_t  Flag, FlagStatus  Status, uint32_t  Tickstart, uint32_t  Timeout  )

static

Handle SMARTCARD Communication Timeout.

Parameters

hsmartcard	Pointer to a SMARTCARD_HandleTypeDef structure that contains the configuration information for the specified SMARTCARD module.
Flag	Specifies the SMARTCARD flag to check.
Status	The new Flag status (SET or RESET).
Tickstart	Tick start value
Timeout	Timeout duration.

Return values

HAL

status

Definition at line 2669 of file stm32l4xx_hal_smartcard.c.

{
  /* Wait until flag is set */
  while ((__HAL_SMARTCARD_GET_FLAG(hsmartcard, Flag) ? SET : RESET) == Status)
  {
    /* Check for the Timeout */
    if (Timeout != HAL_MAX_DELAY)
    {
      if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U))
      {
        /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
#if defined(USART_CR1_FIFOEN)
        CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_TXEIE_TXFNFIE));
#else
        CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE));
#endif /* USART_CR1_FIFOEN */
        CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE);

        hsmartcard->gState  = HAL_SMARTCARD_STATE_READY;
        hsmartcard->RxState = HAL_SMARTCARD_STATE_READY;

        /* Process Unlocked */
        __HAL_UNLOCK(hsmartcard);
        return HAL_TIMEOUT;
      }
    }
  }
  return HAL_OK;
}