diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_smartcard.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_hal_smartcard.c | 406 |
1 files changed, 236 insertions, 170 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_smartcard.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_smartcard.c index 24b7dff643..90cac905ca 100644 --- a/bsps/arm/stm32h7/hal/stm32h7xx_hal_smartcard.c +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_smartcard.c @@ -10,6 +10,17 @@ * + Peripheral Control functions * + Peripheral State and Error functions * + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** @verbatim ============================================================================== ##### How to use this driver ##### @@ -35,7 +46,8 @@ (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters. (+++) Configure the DMA Tx/Rx channel. (+++) Associate the initialized DMA handle to the SMARTCARD DMA Tx/Rx handle. - (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx channel. + (+++) Configure the priority and enable the NVIC for the transfer complete + interrupt on the DMA Tx/Rx channel. (#) Program the Baud Rate, Parity, Mode(Receiver/Transmitter), clock enabling/disabling and accordingly, the clock parameters (parity, phase, last bit), prescaler value, guard time and NACK on transmission @@ -107,8 +119,8 @@ allows the user to configure dynamically the driver callbacks. [..] - Use Function @ref HAL_SMARTCARD_RegisterCallback() to register a user callback. - Function @ref HAL_SMARTCARD_RegisterCallback() allows to register following callbacks: + Use Function HAL_SMARTCARD_RegisterCallback() to register a user callback. + Function HAL_SMARTCARD_RegisterCallback() allows to register following callbacks: (+) TxCpltCallback : Tx Complete Callback. (+) RxCpltCallback : Rx Complete Callback. (+) ErrorCallback : Error Callback. @@ -123,9 +135,9 @@ and a pointer to the user callback function. [..] - Use function @ref HAL_SMARTCARD_UnRegisterCallback() to reset a callback to the default + Use function HAL_SMARTCARD_UnRegisterCallback() to reset a callback to the default weak (surcharged) function. - @ref HAL_SMARTCARD_UnRegisterCallback() takes as parameters the HAL peripheral handle, + HAL_SMARTCARD_UnRegisterCallback() takes as parameters the HAL peripheral handle, and the Callback ID. This function allows to reset following callbacks: (+) TxCpltCallback : Tx Complete Callback. @@ -140,13 +152,13 @@ (+) MspDeInitCallback : SMARTCARD MspDeInit. [..] - By default, after the @ref HAL_SMARTCARD_Init() and when the state is HAL_SMARTCARD_STATE_RESET + By default, after the HAL_SMARTCARD_Init() and when the state is HAL_SMARTCARD_STATE_RESET all callbacks are set to the corresponding weak (surcharged) functions: - examples @ref HAL_SMARTCARD_TxCpltCallback(), @ref HAL_SMARTCARD_RxCpltCallback(). + examples HAL_SMARTCARD_TxCpltCallback(), HAL_SMARTCARD_RxCpltCallback(). Exception done for MspInit and MspDeInit functions that are respectively - reset to the legacy weak (surcharged) functions in the @ref HAL_SMARTCARD_Init() - and @ref HAL_SMARTCARD_DeInit() only when these callbacks are null (not registered beforehand). - If not, MspInit or MspDeInit are not null, the @ref HAL_SMARTCARD_Init() and @ref HAL_SMARTCARD_DeInit() + reset to the legacy weak (surcharged) functions in the HAL_SMARTCARD_Init() + and HAL_SMARTCARD_DeInit() only when these callbacks are null (not registered beforehand). + If not, MspInit or MspDeInit are not null, the HAL_SMARTCARD_Init() and HAL_SMARTCARD_DeInit() keep and use the user MspInit/MspDeInit callbacks (registered beforehand). [..] @@ -155,8 +167,8 @@ in HAL_SMARTCARD_STATE_READY or HAL_SMARTCARD_STATE_RESET state, thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit. In that case first register the MspInit/MspDeInit user callbacks - using @ref HAL_SMARTCARD_RegisterCallback() before calling @ref HAL_SMARTCARD_DeInit() - or @ref HAL_SMARTCARD_Init() function. + using HAL_SMARTCARD_RegisterCallback() before calling HAL_SMARTCARD_DeInit() + or HAL_SMARTCARD_Init() function. [..] When The compilation define USE_HAL_SMARTCARD_REGISTER_CALLBACKS is set to 0 or @@ -166,17 +178,6 @@ @endverbatim ****************************************************************************** - * @attention - * - * <h2><center>© Copyright (c) 2017 STMicroelectronics. - * All rights reserved.</center></h2> - * - * This software component is licensed by ST under BSD 3-Clause license, - * the "License"; You may not use this file except in compliance with the - * License. You may obtain a copy of the License at: - * opensource.org/licenses/BSD-3-Clause - * - ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ @@ -200,23 +201,24 @@ * @ingroup RTEMSBSPsARMSTM32H7 * @{ */ -#define SMARTCARD_TEACK_REACK_TIMEOUT 1000U /*!< SMARTCARD TX or RX enable acknowledge time-out value */ +#define SMARTCARD_TEACK_REACK_TIMEOUT 1000U /*!< SMARTCARD TX or RX enable acknowledge time-out value */ -#define USART_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | \ - USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8| \ - USART_CR1_FIFOEN )) /*!< USART CR1 fields of parameters set by SMARTCARD_SetConfig API */ +#define USART_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \ + USART_CR1_RE | USART_CR1_OVER8| \ + USART_CR1_FIFOEN)) /*!< USART CR1 fields of parameters set by SMARTCARD_SetConfig API */ -#define USART_CR2_CLK_FIELDS ((uint32_t)(USART_CR2_CLKEN | USART_CR2_CPOL | USART_CR2_CPHA | \ - USART_CR2_LBCL)) /*!< SMARTCARD clock-related USART CR2 fields of parameters */ +#define USART_CR2_CLK_FIELDS ((uint32_t)(USART_CR2_CLKEN | USART_CR2_CPOL | \ + USART_CR2_CPHA | USART_CR2_LBCL)) /*!< SMARTCARD clock-related USART CR2 fields of parameters */ -#define USART_CR2_FIELDS ((uint32_t)(USART_CR2_RTOEN | USART_CR2_CLK_FIELDS | USART_CR2_STOP)) /*!< USART CR2 fields of parameters set by SMARTCARD_SetConfig API */ +#define USART_CR2_FIELDS ((uint32_t)(USART_CR2_RTOEN | USART_CR2_CLK_FIELDS | \ + USART_CR2_STOP)) /*!< USART CR2 fields of parameters set by SMARTCARD_SetConfig API */ -#define USART_CR3_FIELDS ((uint32_t)(USART_CR3_ONEBIT | USART_CR3_NACK | USART_CR3_SCARCNT | \ - USART_CR3_TXFTCFG | USART_CR3_RXFTCFG )) /*!< USART CR3 fields of parameters set by SMARTCARD_SetConfig API */ +#define USART_CR3_FIELDS ((uint32_t)(USART_CR3_ONEBIT | USART_CR3_NACK | USART_CR3_SCARCNT | \ + USART_CR3_TXFTCFG | USART_CR3_RXFTCFG )) /*!< USART CR3 fields of parameters set by SMARTCARD_SetConfig API */ -#define USART_BRR_MIN 0x10U /*!< USART BRR minimum authorized value */ +#define USART_BRR_MIN 0x10U /*!< USART BRR minimum authorized value */ -#define USART_BRR_MAX 0x0000FFFFU /*!< USART BRR maximum authorized value */ +#define USART_BRR_MAX 0x0000FFFFU /*!< USART BRR maximum authorized value */ /** * @} */ @@ -470,6 +472,9 @@ __weak void HAL_SMARTCARD_MspDeInit(SMARTCARD_HandleTypeDef *hsmartcard) /** * @brief Register a User SMARTCARD Callback * To be used instead of the weak predefined callback + * @note The HAL_SMARTCARD_RegisterCallback() may be called before HAL_SMARTCARD_Init() + * in HAL_SMARTCARD_STATE_RESET to register callbacks for HAL_SMARTCARD_MSPINIT_CB_ID + * and HAL_SMARTCARD_MSPDEINIT_CB_ID * @param hsmartcard smartcard handle * @param CallbackID ID of the callback to be registered * This parameter can be one of the following values: @@ -487,7 +492,8 @@ __weak void HAL_SMARTCARD_MspDeInit(SMARTCARD_HandleTypeDef *hsmartcard) * @retval HAL status */ HAL_StatusTypeDef HAL_SMARTCARD_RegisterCallback(SMARTCARD_HandleTypeDef *hsmartcard, - HAL_SMARTCARD_CallbackIDTypeDef CallbackID, pSMARTCARD_CallbackTypeDef pCallback) + HAL_SMARTCARD_CallbackIDTypeDef CallbackID, + pSMARTCARD_CallbackTypeDef pCallback) { HAL_StatusTypeDef status = HAL_OK; @@ -498,8 +504,6 @@ HAL_StatusTypeDef HAL_SMARTCARD_RegisterCallback(SMARTCARD_HandleTypeDef *hsmart return HAL_ERROR; } - /* Process locked */ - __HAL_LOCK(hsmartcard); if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY) { @@ -585,15 +589,15 @@ HAL_StatusTypeDef HAL_SMARTCARD_RegisterCallback(SMARTCARD_HandleTypeDef *hsmart status = HAL_ERROR; } - /* Release Lock */ - __HAL_UNLOCK(hsmartcard); - return status; } /** * @brief Unregister an SMARTCARD callback * SMARTCARD callback is redirected to the weak predefined callback + * @note The HAL_SMARTCARD_UnRegisterCallback() may be called before HAL_SMARTCARD_Init() + * in HAL_SMARTCARD_STATE_RESET to un-register callbacks for HAL_SMARTCARD_MSPINIT_CB_ID + * and HAL_SMARTCARD_MSPDEINIT_CB_ID * @param hsmartcard smartcard handle * @param CallbackID ID of the callback to be unregistered * This parameter can be one of the following values: @@ -614,51 +618,50 @@ HAL_StatusTypeDef HAL_SMARTCARD_UnRegisterCallback(SMARTCARD_HandleTypeDef *hsma { HAL_StatusTypeDef status = HAL_OK; - /* Process locked */ - __HAL_LOCK(hsmartcard); - if (HAL_SMARTCARD_STATE_READY == hsmartcard->gState) { switch (CallbackID) { case HAL_SMARTCARD_TX_COMPLETE_CB_ID : - hsmartcard->TxCpltCallback = HAL_SMARTCARD_TxCpltCallback; /* Legacy weak TxCpltCallback */ + hsmartcard->TxCpltCallback = HAL_SMARTCARD_TxCpltCallback; /* Legacy weak TxCpltCallback */ break; case HAL_SMARTCARD_RX_COMPLETE_CB_ID : - hsmartcard->RxCpltCallback = HAL_SMARTCARD_RxCpltCallback; /* Legacy weak RxCpltCallback */ + hsmartcard->RxCpltCallback = HAL_SMARTCARD_RxCpltCallback; /* Legacy weak RxCpltCallback */ break; case HAL_SMARTCARD_ERROR_CB_ID : - hsmartcard->ErrorCallback = HAL_SMARTCARD_ErrorCallback; /* Legacy weak ErrorCallback */ + hsmartcard->ErrorCallback = HAL_SMARTCARD_ErrorCallback; /* Legacy weak ErrorCallback */ break; case HAL_SMARTCARD_ABORT_COMPLETE_CB_ID : - hsmartcard->AbortCpltCallback = HAL_SMARTCARD_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ + hsmartcard->AbortCpltCallback = HAL_SMARTCARD_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ break; case HAL_SMARTCARD_ABORT_TRANSMIT_COMPLETE_CB_ID : - hsmartcard->AbortTransmitCpltCallback = HAL_SMARTCARD_AbortTransmitCpltCallback; /* Legacy weak AbortTransmitCpltCallback */ + hsmartcard->AbortTransmitCpltCallback = HAL_SMARTCARD_AbortTransmitCpltCallback; /* Legacy weak + AbortTransmitCpltCallback*/ break; case HAL_SMARTCARD_ABORT_RECEIVE_COMPLETE_CB_ID : - hsmartcard->AbortReceiveCpltCallback = HAL_SMARTCARD_AbortReceiveCpltCallback; /* Legacy weak AbortReceiveCpltCallback */ + hsmartcard->AbortReceiveCpltCallback = HAL_SMARTCARD_AbortReceiveCpltCallback; /* Legacy weak + AbortReceiveCpltCallback */ break; case HAL_SMARTCARD_RX_FIFO_FULL_CB_ID : - hsmartcard->RxFifoFullCallback = HAL_SMARTCARDEx_RxFifoFullCallback; /* Legacy weak RxFifoFullCallback */ + hsmartcard->RxFifoFullCallback = HAL_SMARTCARDEx_RxFifoFullCallback; /* Legacy weak RxFifoFullCallback */ break; case HAL_SMARTCARD_TX_FIFO_EMPTY_CB_ID : - hsmartcard->TxFifoEmptyCallback = HAL_SMARTCARDEx_TxFifoEmptyCallback; /* Legacy weak TxFifoEmptyCallback */ + hsmartcard->TxFifoEmptyCallback = HAL_SMARTCARDEx_TxFifoEmptyCallback; /* Legacy weak TxFifoEmptyCallback */ break; case HAL_SMARTCARD_MSPINIT_CB_ID : - hsmartcard->MspInitCallback = HAL_SMARTCARD_MspInit; /* Legacy weak MspInitCallback */ + hsmartcard->MspInitCallback = HAL_SMARTCARD_MspInit; /* Legacy weak MspInitCallback */ break; case HAL_SMARTCARD_MSPDEINIT_CB_ID : - hsmartcard->MspDeInitCallback = HAL_SMARTCARD_MspDeInit; /* Legacy weak MspDeInitCallback */ + hsmartcard->MspDeInitCallback = HAL_SMARTCARD_MspDeInit; /* Legacy weak MspDeInitCallback */ break; default : @@ -700,9 +703,6 @@ HAL_StatusTypeDef HAL_SMARTCARD_UnRegisterCallback(SMARTCARD_HandleTypeDef *hsma status = HAL_ERROR; } - /* Release Lock */ - __HAL_UNLOCK(hsmartcard); - return status; } #endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACKS */ @@ -730,62 +730,67 @@ HAL_StatusTypeDef HAL_SMARTCARD_UnRegisterCallback(SMARTCARD_HandleTypeDef *hsma (+) 1.5 stop bits when transmitting and receiving: where STOP=11 in the USART_CR2 register. [..] - (+) There are two modes of transfer: - (++) Blocking mode: The communication is performed in polling mode. + (#) There are two modes of transfer: + (##) Blocking mode: The communication is performed in polling mode. The HAL status of all data processing is returned by the same function after finishing transfer. - (++) Non-Blocking mode: The communication is performed using Interrupts + (##) Non-Blocking mode: The communication is performed using Interrupts or DMA, the relevant API's return the HAL status. The end of the data processing will be indicated through the dedicated SMARTCARD IRQ when using Interrupt mode or the DMA IRQ when using DMA mode. - (++) The HAL_SMARTCARD_TxCpltCallback(), HAL_SMARTCARD_RxCpltCallback() user callbacks + (##) The HAL_SMARTCARD_TxCpltCallback(), HAL_SMARTCARD_RxCpltCallback() user callbacks will be executed respectively at the end of the Transmit or Receive process The HAL_SMARTCARD_ErrorCallback() user callback will be executed when a communication error is detected. - (+) Blocking mode APIs are : - (++) HAL_SMARTCARD_Transmit() - (++) HAL_SMARTCARD_Receive() + (#) Blocking mode APIs are : + (##) HAL_SMARTCARD_Transmit() + (##) HAL_SMARTCARD_Receive() - (+) Non Blocking mode APIs with Interrupt are : - (++) HAL_SMARTCARD_Transmit_IT() - (++) HAL_SMARTCARD_Receive_IT() - (++) HAL_SMARTCARD_IRQHandler() + (#) Non Blocking mode APIs with Interrupt are : + (##) HAL_SMARTCARD_Transmit_IT() + (##) HAL_SMARTCARD_Receive_IT() + (##) HAL_SMARTCARD_IRQHandler() - (+) Non Blocking mode functions with DMA are : - (++) HAL_SMARTCARD_Transmit_DMA() - (++) HAL_SMARTCARD_Receive_DMA() + (#) Non Blocking mode functions with DMA are : + (##) HAL_SMARTCARD_Transmit_DMA() + (##) HAL_SMARTCARD_Receive_DMA() - (+) A set of Transfer Complete Callbacks are provided in non Blocking mode: - (++) HAL_SMARTCARD_TxCpltCallback() - (++) HAL_SMARTCARD_RxCpltCallback() - (++) HAL_SMARTCARD_ErrorCallback() + (#) A set of Transfer Complete Callbacks are provided in non Blocking mode: + (##) HAL_SMARTCARD_TxCpltCallback() + (##) HAL_SMARTCARD_RxCpltCallback() + (##) HAL_SMARTCARD_ErrorCallback() [..] (#) Non-Blocking mode transfers could be aborted using Abort API's : - (++) HAL_SMARTCARD_Abort() - (++) HAL_SMARTCARD_AbortTransmit() - (++) HAL_SMARTCARD_AbortReceive() - (++) HAL_SMARTCARD_Abort_IT() - (++) HAL_SMARTCARD_AbortTransmit_IT() - (++) HAL_SMARTCARD_AbortReceive_IT() - - (#) For Abort services based on interrupts (HAL_SMARTCARD_Abortxxx_IT), a set of Abort Complete Callbacks are provided: - (++) HAL_SMARTCARD_AbortCpltCallback() - (++) HAL_SMARTCARD_AbortTransmitCpltCallback() - (++) HAL_SMARTCARD_AbortReceiveCpltCallback() + (##) HAL_SMARTCARD_Abort() + (##) HAL_SMARTCARD_AbortTransmit() + (##) HAL_SMARTCARD_AbortReceive() + (##) HAL_SMARTCARD_Abort_IT() + (##) HAL_SMARTCARD_AbortTransmit_IT() + (##) HAL_SMARTCARD_AbortReceive_IT() + + (#) For Abort services based on interrupts (HAL_SMARTCARD_Abortxxx_IT), + a set of Abort Complete Callbacks are provided: + (##) HAL_SMARTCARD_AbortCpltCallback() + (##) HAL_SMARTCARD_AbortTransmitCpltCallback() + (##) HAL_SMARTCARD_AbortReceiveCpltCallback() (#) In Non-Blocking mode transfers, possible errors are split into 2 categories. Errors are handled as follows : - (++) Error is considered as Recoverable and non blocking : Transfer could go till end, but error severity is - to be evaluated by user : this concerns Frame Error, Parity Error or Noise Error in Interrupt mode reception . - Received character is then retrieved and stored in Rx buffer, Error code is set to allow user to identify error type, - and HAL_SMARTCARD_ErrorCallback() user callback is executed. Transfer is kept ongoing on SMARTCARD side. - If user wants to abort it, Abort services should be called by user. - (++) Error is considered as Blocking : Transfer could not be completed properly and is aborted. - This concerns Frame Error in Interrupt mode tranmission, Overrun Error in Interrupt mode reception and all errors in DMA mode. - Error code is set to allow user to identify error type, and HAL_SMARTCARD_ErrorCallback() user callback is executed. + (##) Error is considered as Recoverable and non blocking : Transfer could go till end, but error severity is + to be evaluated by user : this concerns Frame Error, + Parity Error or Noise Error in Interrupt mode reception . + Received character is then retrieved and stored in Rx buffer, + Error code is set to allow user to identify error type, + and HAL_SMARTCARD_ErrorCallback() user callback is executed. Transfer is kept ongoing on SMARTCARD side. + If user wants to abort it, Abort services should be called by user. + (##) Error is considered as Blocking : Transfer could not be completed properly and is aborted. + This concerns Frame Error in Interrupt mode transmission, Overrun Error in Interrupt + mode reception and all errors in DMA mode. + Error code is set to allow user to identify error type, + and HAL_SMARTCARD_ErrorCallback() user callback is executed. @endverbatim * @{ @@ -804,11 +809,11 @@ HAL_StatusTypeDef HAL_SMARTCARD_UnRegisterCallback(SMARTCARD_HandleTypeDef *hsma * @param Timeout Timeout duration. * @retval HAL status */ -HAL_StatusTypeDef HAL_SMARTCARD_Transmit(SMARTCARD_HandleTypeDef *hsmartcard, uint8_t *pData, uint16_t Size, +HAL_StatusTypeDef HAL_SMARTCARD_Transmit(SMARTCARD_HandleTypeDef *hsmartcard, const uint8_t *pData, uint16_t Size, uint32_t Timeout) { uint32_t tickstart; - uint8_t *ptmpdata = pData; + const uint8_t *ptmpdata = pData; /* Check that a Tx process is not already ongoing */ if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY) @@ -829,14 +834,23 @@ HAL_StatusTypeDef HAL_SMARTCARD_Transmit(SMARTCARD_HandleTypeDef *hsmartcard, ui /* Disable the Peripheral first to update mode for TX master */ CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); - /* Disable Rx, enable Tx */ - CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_RE); - SET_BIT(hsmartcard->Instance->RQR, (uint16_t)SMARTCARD_RXDATA_FLUSH_REQUEST); + /* In case of TX only mode, if NACK is enabled, the USART must be able to monitor + the bidirectional line to detect a NACK signal in case of parity error. + Therefore, the receiver block must be enabled as well (RE bit must be set). */ + if ((hsmartcard->Init.Mode == SMARTCARD_MODE_TX) + && (hsmartcard->Init.NACKEnable == SMARTCARD_NACK_ENABLE)) + { + SET_BIT(hsmartcard->Instance->CR1, USART_CR1_RE); + } + /* Enable Tx */ SET_BIT(hsmartcard->Instance->CR1, USART_CR1_TE); /* Enable the Peripheral */ SET_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); + /* Perform a TX/RX FIFO Flush */ + __HAL_SMARTCARD_FLUSH_DRREGISTER(hsmartcard); + hsmartcard->ErrorCode = HAL_SMARTCARD_ERROR_NONE; hsmartcard->TxXferSize = Size; hsmartcard->TxXferCount = Size; @@ -851,20 +865,28 @@ HAL_StatusTypeDef HAL_SMARTCARD_Transmit(SMARTCARD_HandleTypeDef *hsmartcard, ui hsmartcard->Instance->TDR = (uint8_t)(*ptmpdata & 0xFFU); ptmpdata++; } - if (SMARTCARD_WaitOnFlagUntilTimeout(hsmartcard, SMARTCARD_TRANSMISSION_COMPLETION_FLAG(hsmartcard), RESET, tickstart, - Timeout) != HAL_OK) + if (SMARTCARD_WaitOnFlagUntilTimeout(hsmartcard, SMARTCARD_TRANSMISSION_COMPLETION_FLAG(hsmartcard), RESET, + tickstart, Timeout) != HAL_OK) { return HAL_TIMEOUT; } - /* 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 mode */ + CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); + if ((hsmartcard->Init.Mode == SMARTCARD_MODE_TX) + && (hsmartcard->Init.NACKEnable == SMARTCARD_NACK_ENABLE)) + { + /* In case of TX only mode, if NACK is enabled, receiver block has been enabled + for Transmit phase. Disable this receiver block. */ + CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_RE); + } + if ((hsmartcard->Init.Mode == SMARTCARD_MODE_TX_RX) + || (hsmartcard->Init.NACKEnable == SMARTCARD_NACK_ENABLE)) { - /* 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); + /* Perform a TX FIFO Flush at end of Tx phase, as all sent bytes are appearing in Rx Data register */ + __HAL_SMARTCARD_FLUSH_DRREGISTER(hsmartcard); } + SET_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); /* At end of Tx process, restore hsmartcard->gState to Ready */ hsmartcard->gState = HAL_SMARTCARD_STATE_READY; @@ -961,7 +983,7 @@ HAL_StatusTypeDef HAL_SMARTCARD_Receive(SMARTCARD_HandleTypeDef *hsmartcard, uin * @param Size amount of data to be sent. * @retval HAL status */ -HAL_StatusTypeDef HAL_SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsmartcard, uint8_t *pData, uint16_t Size) +HAL_StatusTypeDef HAL_SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsmartcard, const uint8_t *pData, uint16_t Size) { /* Check that a Tx process is not already ongoing */ if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY) @@ -985,14 +1007,23 @@ HAL_StatusTypeDef HAL_SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsmartcard, /* Disable the Peripheral first to update mode for TX master */ CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); - /* Disable Rx, enable Tx */ - CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_RE); - SET_BIT(hsmartcard->Instance->RQR, (uint16_t)SMARTCARD_RXDATA_FLUSH_REQUEST); + /* In case of TX only mode, if NACK is enabled, the USART must be able to monitor + the bidirectional line to detect a NACK signal in case of parity error. + Therefore, the receiver block must be enabled as well (RE bit must be set). */ + if ((hsmartcard->Init.Mode == SMARTCARD_MODE_TX) + && (hsmartcard->Init.NACKEnable == SMARTCARD_NACK_ENABLE)) + { + SET_BIT(hsmartcard->Instance->CR1, USART_CR1_RE); + } + /* Enable Tx */ SET_BIT(hsmartcard->Instance->CR1, USART_CR1_TE); /* Enable the Peripheral */ SET_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); + /* Perform a TX/RX FIFO Flush */ + __HAL_SMARTCARD_FLUSH_DRREGISTER(hsmartcard); + /* Configure Tx interrupt processing */ if (hsmartcard->FifoMode == SMARTCARD_FIFOMODE_ENABLE) { @@ -1110,7 +1141,7 @@ HAL_StatusTypeDef HAL_SMARTCARD_Receive_IT(SMARTCARD_HandleTypeDef *hsmartcard, * @param Size amount of data to be sent. * @retval HAL status */ -HAL_StatusTypeDef HAL_SMARTCARD_Transmit_DMA(SMARTCARD_HandleTypeDef *hsmartcard, uint8_t *pData, uint16_t Size) +HAL_StatusTypeDef HAL_SMARTCARD_Transmit_DMA(SMARTCARD_HandleTypeDef *hsmartcard, const uint8_t *pData, uint16_t Size) { /* Check that a Tx process is not already ongoing */ if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY) @@ -1133,14 +1164,23 @@ HAL_StatusTypeDef HAL_SMARTCARD_Transmit_DMA(SMARTCARD_HandleTypeDef *hsmartcard /* Disable the Peripheral first to update mode for TX master */ CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); - /* Disable Rx, enable Tx */ - CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_RE); - SET_BIT(hsmartcard->Instance->RQR, (uint16_t)SMARTCARD_RXDATA_FLUSH_REQUEST); + /* In case of TX only mode, if NACK is enabled, the USART must be able to monitor + the bidirectional line to detect a NACK signal in case of parity error. + Therefore, the receiver block must be enabled as well (RE bit must be set). */ + if ((hsmartcard->Init.Mode == SMARTCARD_MODE_TX) + && (hsmartcard->Init.NACKEnable == SMARTCARD_NACK_ENABLE)) + { + SET_BIT(hsmartcard->Instance->CR1, USART_CR1_RE); + } + /* Enable Tx */ SET_BIT(hsmartcard->Instance->CR1, USART_CR1_TE); /* Enable the Peripheral */ SET_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); + /* Perform a TX/RX FIFO Flush */ + __HAL_SMARTCARD_FLUSH_DRREGISTER(hsmartcard); + /* Set the SMARTCARD DMA transfer complete callback */ hsmartcard->hdmatx->XferCpltCallback = SMARTCARD_DMATransmitCplt; @@ -1281,7 +1321,8 @@ HAL_StatusTypeDef HAL_SMARTCARD_Receive_DMA(SMARTCARD_HandleTypeDef *hsmartcard, */ HAL_StatusTypeDef HAL_SMARTCARD_Abort(SMARTCARD_HandleTypeDef *hsmartcard) { - /* Disable RTOIE, EOBIE, TXEIE, TCIE, RXNE, PE, RXFT, TXFT and ERR (Frame error, noise error, overrun error) interrupts */ + /* Disable RTOIE, EOBIE, TXEIE, TCIE, RXNE, PE, RXFT, TXFT and + ERR (Frame error, noise error, overrun error) interrupts */ CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_TXEIE_TXFNFIE | USART_CR1_TCIE | USART_CR1_RTOIE | USART_CR1_EOBIE)); @@ -1343,8 +1384,8 @@ HAL_StatusTypeDef HAL_SMARTCARD_Abort(SMARTCARD_HandleTypeDef *hsmartcard) /* 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); + 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; @@ -1435,7 +1476,8 @@ HAL_StatusTypeDef HAL_SMARTCARD_AbortTransmit(SMARTCARD_HandleTypeDef *hsmartcar HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive(SMARTCARD_HandleTypeDef *hsmartcard) { /* Disable RTOIE, EOBIE, RXNE, PE, RXFT, TXFT and ERR (Frame error, noise error, overrun error) interrupts */ - CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_RTOIE | USART_CR1_EOBIE)); + CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_RTOIE | + USART_CR1_EOBIE)); CLEAR_BIT(hsmartcard->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE)); /* Check if a Transmit process is ongoing or not. If not disable ERR IT */ @@ -1475,8 +1517,8 @@ HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive(SMARTCARD_HandleTypeDef *hsmartcard /* 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); + 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; @@ -1503,14 +1545,16 @@ HAL_StatusTypeDef HAL_SMARTCARD_Abort_IT(SMARTCARD_HandleTypeDef *hsmartcard) { uint32_t abortcplt = 1U; - /* Disable RTOIE, EOBIE, TXEIE, TCIE, RXNE, PE, RXFT, TXFT and ERR (Frame error, noise error, overrun error) interrupts */ + /* Disable RTOIE, EOBIE, TXEIE, TCIE, RXNE, PE, RXFT, TXFT and + ERR (Frame error, noise error, overrun error) interrupts */ CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_TXEIE_TXFNFIE | USART_CR1_TCIE | USART_CR1_RTOIE | USART_CR1_EOBIE)); CLEAR_BIT(hsmartcard->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE | USART_CR3_TXFTIE)); - /* If DMA Tx and/or DMA Rx Handles are associated to SMARTCARD Handle, DMA Abort complete callbacks should be initialised - before any call to DMA Abort functions */ + /* If DMA Tx and/or DMA Rx Handles are associated to SMARTCARD Handle, + DMA Abort complete callbacks should be initialised before any call + to DMA Abort functions */ /* DMA Tx Handle is valid */ if (hsmartcard->hdmatx != NULL) { @@ -1604,8 +1648,8 @@ HAL_StatusTypeDef HAL_SMARTCARD_Abort_IT(SMARTCARD_HandleTypeDef *hsmartcard) /* 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); + 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; @@ -1737,7 +1781,8 @@ HAL_StatusTypeDef HAL_SMARTCARD_AbortTransmit_IT(SMARTCARD_HandleTypeDef *hsmart HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive_IT(SMARTCARD_HandleTypeDef *hsmartcard) { /* Disable RTOIE, EOBIE, RXNE, PE, RXFT and ERR (Frame error, noise error, overrun error) interrupts */ - CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_RTOIE | USART_CR1_EOBIE)); + CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_RTOIE | + USART_CR1_EOBIE)); CLEAR_BIT(hsmartcard->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE)); /* Check if a Transmit process is ongoing or not. If not disable ERR IT */ @@ -1776,8 +1821,8 @@ HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive_IT(SMARTCARD_HandleTypeDef *hsmartc /* 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); + 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; @@ -1802,8 +1847,8 @@ HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive_IT(SMARTCARD_HandleTypeDef *hsmartc /* 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); + 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; @@ -2232,7 +2277,7 @@ __weak void HAL_SMARTCARD_AbortReceiveCpltCallback(SMARTCARD_HandleTypeDef *hsma * the configuration information for the specified SMARTCARD module. * @retval SMARTCARD handle state */ -HAL_SMARTCARD_StateTypeDef HAL_SMARTCARD_GetState(SMARTCARD_HandleTypeDef *hsmartcard) +HAL_SMARTCARD_StateTypeDef HAL_SMARTCARD_GetState(const SMARTCARD_HandleTypeDef *hsmartcard) { /* Return SMARTCARD handle state */ uint32_t temp1; @@ -2249,7 +2294,7 @@ HAL_SMARTCARD_StateTypeDef HAL_SMARTCARD_GetState(SMARTCARD_HandleTypeDef *hsmar * the configuration information for the specified SMARTCARD module. * @retval SMARTCARD handle Error Code */ -uint32_t HAL_SMARTCARD_GetError(SMARTCARD_HandleTypeDef *hsmartcard) +uint32_t HAL_SMARTCARD_GetError(const SMARTCARD_HandleTypeDef *hsmartcard) { return hsmartcard->ErrorCode; } @@ -2276,14 +2321,18 @@ uint32_t HAL_SMARTCARD_GetError(SMARTCARD_HandleTypeDef *hsmartcard) void SMARTCARD_InitCallbacksToDefault(SMARTCARD_HandleTypeDef *hsmartcard) { /* 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 */ - hsmartcard->RxFifoFullCallback = HAL_SMARTCARDEx_RxFifoFullCallback; /* Legacy weak RxFifoFullCallback */ - hsmartcard->TxFifoEmptyCallback = HAL_SMARTCARDEx_TxFifoEmptyCallback; /* Legacy weak TxFifoEmptyCallback */ + 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 */ + hsmartcard->RxFifoFullCallback = HAL_SMARTCARDEx_RxFifoFullCallback; /* Legacy weak + RxFifoFullCallback */ + hsmartcard->TxFifoEmptyCallback = HAL_SMARTCARDEx_TxFifoEmptyCallback; /* Legacy weak + TxFifoEmptyCallback */ } #endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACKS */ @@ -2299,7 +2348,7 @@ static HAL_StatusTypeDef SMARTCARD_SetConfig(SMARTCARD_HandleTypeDef *hsmartcard uint32_t tmpreg; SMARTCARD_ClockSourceTypeDef clocksource; HAL_StatusTypeDef ret = HAL_OK; - const uint16_t SMARTCARDPrescTable[12] = {1U, 2U, 4U, 6U, 8U, 10U, 12U, 16U, 32U, 64U, 128U, 256U}; + static const uint16_t SMARTCARDPrescTable[12] = {1U, 2U, 4U, 6U, 8U, 10U, 12U, 16U, 32U, 64U, 128U, 256U}; PLL2_ClocksTypeDef pll2_clocks; PLL3_ClocksTypeDef pll3_clocks; uint32_t pclk; @@ -2326,8 +2375,8 @@ static HAL_StatusTypeDef SMARTCARD_SetConfig(SMARTCARD_HandleTypeDef *hsmartcard * 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 */ - tmpreg = (uint32_t) hsmartcard->Init.Parity | hsmartcard->Init.Mode; - tmpreg |= (uint32_t) hsmartcard->Init.WordLength | hsmartcard->FifoMode; + tmpreg = (((uint32_t)hsmartcard->Init.Parity) | ((uint32_t)hsmartcard->Init.Mode) | + ((uint32_t)hsmartcard->Init.WordLength)); MODIFY_REG(hsmartcard->Instance->CR1, USART_CR1_FIELDS, tmpreg); /*-------------------------- USART CR2 Configuration -----------------------*/ @@ -2375,35 +2424,44 @@ static HAL_StatusTypeDef SMARTCARD_SetConfig(SMARTCARD_HandleTypeDef *hsmartcard { case SMARTCARD_CLOCKSOURCE_D2PCLK1: pclk = HAL_RCC_GetPCLK1Freq(); - tmpreg = (uint16_t)(((pclk / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); + tmpreg = (uint32_t)(((pclk / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); break; case SMARTCARD_CLOCKSOURCE_D2PCLK2: pclk = HAL_RCC_GetPCLK2Freq(); - tmpreg = (uint16_t)(((pclk / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); + tmpreg = (uint32_t)(((pclk / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); break; case SMARTCARD_CLOCKSOURCE_PLL2Q: HAL_RCCEx_GetPLL2ClockFreq(&pll2_clocks); - tmpreg = (uint16_t)(((pll2_clocks.PLL2_Q_Frequency / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); + tmpreg = (uint32_t)(((pll2_clocks.PLL2_Q_Frequency / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); break; case SMARTCARD_CLOCKSOURCE_PLL3Q: HAL_RCCEx_GetPLL3ClockFreq(&pll3_clocks); - tmpreg = (uint16_t)(((pll3_clocks.PLL3_Q_Frequency / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); + tmpreg = (uint32_t)(((pll3_clocks.PLL3_Q_Frequency / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); break; case SMARTCARD_CLOCKSOURCE_HSI: if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIDIV) != 0U) { - tmpreg = (uint16_t)((((HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER() >> 3U)) / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); + tmpreg = (uint32_t)((((HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER() >> 3U)) / + SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); } else { - tmpreg = (uint16_t)(((HSI_VALUE / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); + tmpreg = (uint32_t)(((HSI_VALUE / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); } break; case SMARTCARD_CLOCKSOURCE_CSI: - tmpreg = (uint16_t)(((CSI_VALUE / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); + tmpreg = (uint32_t)(((CSI_VALUE / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); break; case SMARTCARD_CLOCKSOURCE_LSE: - tmpreg = (uint16_t)(((uint16_t)(LSE_VALUE / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); + tmpreg = (uint32_t)(((uint16_t)(LSE_VALUE / SMARTCARDPrescTable[hsmartcard->Init.ClockPrescaler]) + + (hsmartcard->Init.BaudRate / 2U)) / hsmartcard->Init.BaudRate); break; default: ret = HAL_ERROR; @@ -2413,7 +2471,7 @@ static HAL_StatusTypeDef SMARTCARD_SetConfig(SMARTCARD_HandleTypeDef *hsmartcard /* USARTDIV must be greater than or equal to 0d16 */ if ((tmpreg >= USART_BRR_MIN) && (tmpreg <= USART_BRR_MAX)) { - hsmartcard->Instance->BRR = tmpreg; + hsmartcard->Instance->BRR = (uint16_t)tmpreg; } else { @@ -2544,11 +2602,12 @@ static HAL_StatusTypeDef SMARTCARD_CheckIdleState(SMARTCARD_HandleTypeDef *hsmar } /** - * @brief Handle SMARTCARD Communication Timeout. + * @brief Handle SMARTCARD Communication Timeout. It waits + * until a flag is no longer in the specified status. * @param hsmartcard Pointer to a SMARTCARD_HandleTypeDef structure that contains * the configuration information for the specified SMARTCARD module. * @param Flag Specifies the SMARTCARD flag to check. - * @param Status The new Flag status (SET or RESET). + * @param Status The actual Flag status (SET or RESET). * @param Tickstart Tick start value * @param Timeout Timeout duration. * @retval HAL status @@ -2564,7 +2623,8 @@ static HAL_StatusTypeDef SMARTCARD_WaitOnFlagUntilTimeout(SMARTCARD_HandleTypeDe { if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U)) { - /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) + interrupts for the interrupt process */ CLEAR_BIT(hsmartcard->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_TXEIE_TXFNFIE)); CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE); @@ -2758,8 +2818,8 @@ static void SMARTCARD_DMATxAbortCallback(DMA_HandleTypeDef *hdma) /* 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); + 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; @@ -2807,8 +2867,8 @@ static void SMARTCARD_DMARxAbortCallback(DMA_HandleTypeDef *hdma) /* 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); + 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; @@ -2869,8 +2929,8 @@ static void SMARTCARD_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma) /* 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); + 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; @@ -2973,15 +3033,22 @@ static void SMARTCARD_EndTransmit_IT(SMARTCARD_HandleTypeDef *hsmartcard) 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 mode */ + CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); + if ((hsmartcard->Init.Mode == SMARTCARD_MODE_TX) + && (hsmartcard->Init.NACKEnable == SMARTCARD_NACK_ENABLE)) { - /* 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); + /* In case of TX only mode, if NACK is enabled, receiver block has been enabled + for Transmit phase. Disable this receiver block. */ + CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_RE); } + if ((hsmartcard->Init.Mode == SMARTCARD_MODE_TX_RX) + || (hsmartcard->Init.NACKEnable == SMARTCARD_NACK_ENABLE)) + { + /* Perform a TX FIFO Flush at end of Tx phase, as all sent bytes are appearing in Rx Data register */ + __HAL_SMARTCARD_FLUSH_DRREGISTER(hsmartcard); + } + SET_BIT(hsmartcard->Instance->CR1, USART_CR1_UE); /* Tx process is ended, restore hsmartcard->gState to Ready */ hsmartcard->gState = HAL_SMARTCARD_STATE_READY; @@ -3140,4 +3207,3 @@ static void SMARTCARD_RxISR_FIFOEN(SMARTCARD_HandleTypeDef *hsmartcard) * @} */ -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |