From 43b94a6ada83454c3404bda019ec114f97379c82 Mon Sep 17 00:00:00 2001 From: "Pavel V. Shatov" Date: Thu, 27 Aug 2015 00:01:24 +0400 Subject: Initial version of FMC driver for STM32. --- .../Src/stm32f4xx_hal_smartcard.c | 1303 ++++++++++++++++++++ 1 file changed, 1303 insertions(+) create mode 100644 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c (limited to 'Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c') diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c new file mode 100644 index 0000000..3f794ef --- /dev/null +++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c @@ -0,0 +1,1303 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_smartcard.c + * @author MCD Application Team + * @version V1.3.2 + * @date 26-June-2015 + * @brief SMARTCARD HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the SMARTCARD peripheral: + * + Initialization and de-initialization functions + * + IO operation functions + * + Peripheral State and Errors functions + * + @verbatim + ============================================================================== + ##### How to use this driver ##### + ============================================================================== + [..] + The SMARTCARD HAL driver can be used as follows: + + (#) Declare a SMARTCARD_HandleTypeDef handle structure. + (#) Initialize the SMARTCARD low level resources by implementing the HAL_SMARTCARD_MspInit() API: + (##) Enable the USARTx interface clock. + (##) SMARTCARD pins configuration: + (+++) Enable the clock for the SMARTCARD GPIOs. + (+++) Configure these SMARTCARD pins as alternate function pull-up. + (##) NVIC configuration if you need to use interrupt process (HAL_SMARTCARD_Transmit_IT() + and HAL_SMARTCARD_Receive_IT() APIs): + (+++) Configure the USARTx interrupt priority. + (+++) Enable the NVIC USART IRQ handle. + (##) DMA Configuration if you need to use DMA process (HAL_SMARTCARD_Transmit_DMA() + and HAL_SMARTCARD_Receive_DMA() APIs): + (+++) Declare a DMA handle structure for the Tx/Rx stream. + (+++) Enable the DMAx interface clock. + (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters. + (+++) Configure the DMA Tx/Rx Stream. + (+++) 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 Stream. + + (#) Program the Baud Rate, Word Length , Stop Bit, Parity, Hardware + flow control and Mode(Receiver/Transmitter) in the SMARTCARD Init structure. + + (#) Initialize the SMARTCARD registers by calling the HAL_SMARTCARD_Init() API: + (++) These APIs configure also the low level Hardware GPIO, CLOCK, CORTEX...etc) + by calling the customized HAL_SMARTCARD_MspInit() API. + [..] + (@) The specific SMARTCARD interrupts (Transmission complete interrupt, + RXNE interrupt and Error Interrupts) will be managed using the macros + __HAL_SMARTCARD_ENABLE_IT() and __HAL_SMARTCARD_DISABLE_IT() inside the transmit and receive process. + + [..] + Three operation modes are available within this driver : + + *** Polling mode IO operation *** + ================================= + [..] + (+) Send an amount of data in blocking mode using HAL_SMARTCARD_Transmit() + (+) Receive an amount of data in blocking mode using HAL_SMARTCARD_Receive() + + *** Interrupt mode IO operation *** + =================================== + [..] + (+) Send an amount of data in non blocking mode using HAL_SMARTCARD_Transmit_IT() + (+) At transmission end of transfer HAL_SMARTCARD_TxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_SMARTCARD_TxCpltCallback + (+) Receive an amount of data in non blocking mode using HAL_SMARTCARD_Receive_IT() + (+) At reception end of transfer HAL_SMARTCARD_RxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_SMARTCARD_RxCpltCallback + (+) In case of transfer Error, HAL_SMARTCARD_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_SMARTCARD_ErrorCallback + + *** DMA mode IO operation *** + ============================== + [..] + (+) Send an amount of data in non blocking mode (DMA) using HAL_SMARTCARD_Transmit_DMA() + (+) At transmission end of transfer HAL_SMARTCARD_TxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_SMARTCARD_TxCpltCallback + (+) Receive an amount of data in non blocking mode (DMA) using HAL_SMARTCARD_Receive_DMA() + (+) At reception end of transfer HAL_SMARTCARD_RxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_SMARTCARD_RxCpltCallback + (+) In case of transfer Error, HAL_SMARTCARD_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_SMARTCARD_ErrorCallback + + *** SMARTCARD HAL driver macros list *** + ============================================= + [..] + Below the list of most used macros in SMARTCARD HAL driver. + + (+) __HAL_SMARTCARD_ENABLE: Enable the SMARTCARD peripheral + (+) __HAL_SMARTCARD_DISABLE: Disable the SMARTCARD peripheral + (+) __HAL_SMARTCARD_GET_FLAG : Check whether the specified SMARTCARD flag is set or not + (+) __HAL_SMARTCARD_CLEAR_FLAG : Clear the specified SMARTCARD pending flag + (+) __HAL_SMARTCARD_ENABLE_IT: Enable the specified SMARTCARD interrupt + (+) __HAL_SMARTCARD_DISABLE_IT: Disable the specified SMARTCARD interrupt + + [..] + (@) You can refer to the SMARTCARD HAL driver header file for more useful macros + + @endverbatim + ****************************************************************************** + * @attention + * + *

© COPYRIGHT(c) 2015 STMicroelectronics

+ * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx_hal.h" + +/** @addtogroup STM32F4xx_HAL_Driver + * @{ + */ + +/** @defgroup SMARTCARD SMARTCARD + * @brief HAL USART SMARTCARD module driver + * @{ + */ +#ifdef HAL_SMARTCARD_MODULE_ENABLED +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @addtogroup SMARTCARD_Private_Constants + * @{ + */ +#define SMARTCARD_TIMEOUT_VALUE 22000 +/** + * @} + */ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @addtogroup SMARTCARD_Private_Functions + * @{ + */ +static void SMARTCARD_SetConfig (SMARTCARD_HandleTypeDef *hsc); +static HAL_StatusTypeDef SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsc); +static HAL_StatusTypeDef SMARTCARD_EndTransmit_IT(SMARTCARD_HandleTypeDef *hsmartcard); +static HAL_StatusTypeDef SMARTCARD_Receive_IT(SMARTCARD_HandleTypeDef *hsc); +static void SMARTCARD_DMATransmitCplt(DMA_HandleTypeDef *hdma); +static void SMARTCARD_DMAReceiveCplt(DMA_HandleTypeDef *hdma); +static void SMARTCARD_DMAError(DMA_HandleTypeDef *hdma); +static HAL_StatusTypeDef SMARTCARD_WaitOnFlagUntilTimeout(SMARTCARD_HandleTypeDef *hsc, uint32_t Flag, FlagStatus Status, uint32_t Timeout); +/** + * @} + */ +/* Exported functions --------------------------------------------------------*/ +/** @defgroup SMARTCARD_Exported_Functions SMARTCARD Exported Functions + * @{ + */ + +/** @defgroup SMARTCARD_Exported_Functions_Group1 SmartCard Initialization and de-initialization functions + * @brief Initialization and Configuration functions + * +@verbatim + ============================================================================== + ##### Initialization and Configuration functions ##### + ============================================================================== + [..] + This subsection provides a set of functions allowing to initialize the USART + in Smartcard mode. + [..] + The Smartcard interface is designed to support asynchronous protocol Smartcards as + defined in the ISO 7816-3 standard. + [..] + The USART can provide a clock to the smartcard through the SCLK output. + In smartcard mode, SCLK is not associated to the communication but is simply derived + from the internal peripheral input clock through a 5-bit prescaler. + [..] + (+) For the Smartcard mode only these parameters can be configured: + (++) Baud Rate + (++) Word Length => Should be 9 bits (8 bits + parity) + (++) Stop Bit + (++) Parity: => Should be enabled + +-------------------------------------------------------------+ + | M bit | PCE bit | SMARTCARD frame | + |---------------------|---------------------------------------| + | 1 | 1 | | SB | 8 bit data | PB | STB | | + +-------------------------------------------------------------+ + (++) USART polarity + (++) USART phase + (++) USART LastBit + (++) Receiver/transmitter modes + (++) Prescaler + (++) GuardTime + (++) NACKState: The Smartcard NACK state + + (+) Recommended SmartCard interface configuration to get the Answer to Reset from the Card: + (++) Word Length = 9 Bits + (++) 1.5 Stop Bit + (++) Even parity + (++) BaudRate = 12096 baud + (++) Tx and Rx enabled + [..] + Please refer to the ISO 7816-3 specification for more details. + + -@- It is also possible to choose 0.5 stop bit for receiving but it is recommended + to use 1.5 stop bits for both transmitting and receiving to avoid switching + between the two configurations. + [..] + The HAL_SMARTCARD_Init() function follows the USART SmartCard configuration + procedure (details for the procedure are available in reference manual (RM0329)). + +@endverbatim + * @{ + */ + +/** + * @brief Initializes the SmartCard mode according to the specified + * parameters in the SMARTCARD_InitTypeDef and create the associated handle . + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SMARTCARD_Init(SMARTCARD_HandleTypeDef *hsc) +{ + /* Check the SMARTCARD handle allocation */ + if(hsc == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance)); + assert_param(IS_SMARTCARD_NACK_STATE(hsc->Init.NACKState)); + + if(hsc->State == HAL_SMARTCARD_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hsc->Lock = HAL_UNLOCKED; + /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */ + HAL_SMARTCARD_MspInit(hsc); + } + + hsc->State = HAL_SMARTCARD_STATE_BUSY; + + /* Set the Prescaler */ + MODIFY_REG(hsc->Instance->GTPR, USART_GTPR_PSC, hsc->Init.Prescaler); + + /* Set the Guard Time */ + MODIFY_REG(hsc->Instance->GTPR, USART_GTPR_GT, ((hsc->Init.GuardTime)<<8)); + + /* Set the Smartcard Communication parameters */ + SMARTCARD_SetConfig(hsc); + + /* In SmartCard mode, the following bits must be kept cleared: + - LINEN bit in the USART_CR2 register + - HDSEL and IREN bits in the USART_CR3 register.*/ + hsc->Instance->CR2 &= ~USART_CR2_LINEN; + hsc->Instance->CR3 &= ~(USART_CR3_IREN | USART_CR3_HDSEL); + + /* Enable the SMARTCARD Parity Error Interrupt */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_PE); + + /* Enable the SMARTCARD Framing Error Interrupt */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_ERR); + + /* Enable the Peripheral */ + __HAL_SMARTCARD_ENABLE(hsc); + + /* Configure the Smartcard NACK state */ + MODIFY_REG(hsc->Instance->CR3, USART_CR3_NACK, hsc->Init.NACKState); + + /* Enable the SC mode by setting the SCEN bit in the CR3 register */ + hsc->Instance->CR3 |= (USART_CR3_SCEN); + + /* Initialize the SMARTCARD state*/ + hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; + hsc->State= HAL_SMARTCARD_STATE_READY; + + return HAL_OK; +} + +/** + * @brief DeInitializes the USART SmartCard peripheral + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SMARTCARD_DeInit(SMARTCARD_HandleTypeDef *hsc) +{ + /* Check the SMARTCARD handle allocation */ + if(hsc == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance)); + + hsc->State = HAL_SMARTCARD_STATE_BUSY; + + /* Disable the Peripheral */ + __HAL_SMARTCARD_DISABLE(hsc); + + /* DeInit the low level hardware */ + HAL_SMARTCARD_MspDeInit(hsc); + + hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; + hsc->State = HAL_SMARTCARD_STATE_RESET; + + /* Release Lock */ + __HAL_UNLOCK(hsc); + + return HAL_OK; +} + +/** + * @brief SMARTCARD MSP Init + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval None + */ + __weak void HAL_SMARTCARD_MspInit(SMARTCARD_HandleTypeDef *hsc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SMARTCARD_MspInit could be implemented in the user file + */ +} + +/** + * @brief SMARTCARD MSP DeInit + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval None + */ + __weak void HAL_SMARTCARD_MspDeInit(SMARTCARD_HandleTypeDef *hsc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SMARTCARD_MspDeInit could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup SMARTCARD_Exported_Functions_Group2 IO operation functions + * @brief SMARTCARD Transmit and Receive functions + * +@verbatim + =============================================================================== + ##### IO operation functions ##### + =============================================================================== + This subsection provides a set of functions allowing to manage the SMARTCARD data transfers. + [..] + Smartcard is a single wire half duplex communication protocol. + The Smartcard interface is designed to support asynchronous protocol Smartcards as + defined in the ISO 7816-3 standard. The USART should be configured as: + (+) 8 bits plus parity: where M=1 and PCE=1 in the USART_CR1 register + (+) 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. + 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 + or DMA, These APIs 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 + 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() + + (#) 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() + + (#) A set of Transfer Complete Callbacks are provided in non Blocking mode: + (++) HAL_SMARTCARD_TxCpltCallback() + (++) HAL_SMARTCARD_RxCpltCallback() + (++) HAL_SMARTCARD_ErrorCallback() + +@endverbatim + * @{ + */ + +/** + * @brief Send an amount of data in blocking mode + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @param pData: pointer to data buffer + * @param Size: amount of data to be sent + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SMARTCARD_Transmit(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + uint16_t* tmp; + uint32_t tmp1 = 0; + + tmp1 = hsc->State; + if((tmp1 == HAL_SMARTCARD_STATE_READY) || (tmp1 == HAL_SMARTCARD_STATE_BUSY_RX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hsc); + + hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; + /* Check if a non-blocking receive process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_RX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX_RX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX; + } + + hsc->TxXferSize = Size; + hsc->TxXferCount = Size; + while(hsc->TxXferCount > 0) + { + hsc->TxXferCount--; + if(SMARTCARD_WaitOnFlagUntilTimeout(hsc, SMARTCARD_FLAG_TXE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + tmp = (uint16_t*) pData; + hsc->Instance->DR = (*tmp & (uint16_t)0x01FF); + pData +=1; + } + + if(SMARTCARD_WaitOnFlagUntilTimeout(hsc, SMARTCARD_FLAG_TC, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + + /* Check if a non-blocking receive process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_TX_RX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_RX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_READY; + } + /* Process Unlocked */ + __HAL_UNLOCK(hsc); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in blocking mode + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @param pData: pointer to data buffer + * @param Size: amount of data to be received + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SMARTCARD_Receive(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + uint16_t* tmp; + uint32_t tmp1 = 0; + + tmp1 = hsc->State; + if((tmp1 == HAL_SMARTCARD_STATE_READY) || (tmp1 == HAL_SMARTCARD_STATE_BUSY_TX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hsc); + + hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; + + /* Check if a non-blocking transmit process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_TX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX_RX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_RX; + } + + hsc->RxXferSize = Size; + hsc->RxXferCount = Size; + + /* Check the remain data to be received */ + while(hsc->RxXferCount > 0) + { + hsc->RxXferCount--; + if(SMARTCARD_WaitOnFlagUntilTimeout(hsc, SMARTCARD_FLAG_RXNE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + tmp = (uint16_t*) pData; + *tmp = (uint16_t)(hsc->Instance->DR & (uint16_t)0x00FF); + pData +=1; + } + + /* Check if a non-blocking transmit process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_TX_RX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_READY; + } + + /* Process Unlocked */ + __HAL_UNLOCK(hsc); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Send an amount of data in non blocking mode + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @param pData: pointer to data buffer + * @param Size: amount of data to be sent + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size) +{ + uint32_t tmp1 = 0; + + tmp1 = hsc->State; + if((tmp1 == HAL_SMARTCARD_STATE_READY) || (tmp1 == HAL_SMARTCARD_STATE_BUSY_RX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hsc); + + hsc->pTxBuffPtr = pData; + hsc->TxXferSize = Size; + hsc->TxXferCount = Size; + + hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; + /* Check if a non-blocking receive process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_RX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX_RX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX; + } + + /* Process Unlocked */ + __HAL_UNLOCK(hsc); + + /* Enable the SMARTCARD Parity Error Interrupt */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_PE); + + /* Disable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_ERR); + + /* Enable the SMARTCARD Transmit data register empty Interrupt */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_TXE); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in non blocking mode + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @param pData: pointer to data buffer + * @param Size: amount of data to be received + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SMARTCARD_Receive_IT(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size) +{ + uint32_t tmp1 = 0; + + tmp1 = hsc->State; + if((tmp1 == HAL_SMARTCARD_STATE_READY) || (tmp1 == HAL_SMARTCARD_STATE_BUSY_TX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hsc); + + hsc->pRxBuffPtr = pData; + hsc->RxXferSize = Size; + hsc->RxXferCount = Size; + + hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; + /* Check if a non-blocking transmit process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_TX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX_RX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_RX; + } + /* Process Unlocked */ + __HAL_UNLOCK(hsc); + + /* Enable the SMARTCARD Data Register not empty Interrupt */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_RXNE); + + /* Enable the SMARTCARD Parity Error Interrupt */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_PE); + + /* Enable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_ERR); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Send an amount of data in non blocking mode + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @param pData: pointer to data buffer + * @param Size: amount of data to be sent + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SMARTCARD_Transmit_DMA(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size) +{ + uint32_t *tmp; + uint32_t tmp1 = 0; + + tmp1 = hsc->State; + if((tmp1 == HAL_SMARTCARD_STATE_READY) || (tmp1 == HAL_SMARTCARD_STATE_BUSY_RX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hsc); + + hsc->pTxBuffPtr = pData; + hsc->TxXferSize = Size; + hsc->TxXferCount = Size; + + hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; + /* Check if a non-blocking receive process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_RX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX_RX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX; + } + + /* Set the SMARTCARD DMA transfer complete callback */ + hsc->hdmatx->XferCpltCallback = SMARTCARD_DMATransmitCplt; + + /* Set the DMA error callback */ + hsc->hdmatx->XferErrorCallback = SMARTCARD_DMAError; + + /* Enable the SMARTCARD transmit DMA Stream */ + tmp = (uint32_t*)&pData; + HAL_DMA_Start_IT(hsc->hdmatx, *(uint32_t*)tmp, (uint32_t)&hsc->Instance->DR, Size); + + /* Clear the TC flag in the SR register by writing 0 to it */ + __HAL_SMARTCARD_CLEAR_FLAG(hsc, SMARTCARD_FLAG_TC); + + /* Enable the DMA transfer for transmit request by setting the DMAT bit + in the SMARTCARD CR3 register */ + hsc->Instance->CR3 |= USART_CR3_DMAT; + + /* Process Unlocked */ + __HAL_UNLOCK(hsc); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in non blocking mode + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @param pData: pointer to data buffer + * @param Size: amount of data to be received + * @note When the SMARTCARD parity is enabled (PCE = 1) the data received contain the parity bit.s + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SMARTCARD_Receive_DMA(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size) +{ + uint32_t *tmp; + uint32_t tmp1 = 0; + + tmp1 = hsc->State; + if((tmp1 == HAL_SMARTCARD_STATE_READY) || (tmp1 == HAL_SMARTCARD_STATE_BUSY_TX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hsc); + + hsc->pRxBuffPtr = pData; + hsc->RxXferSize = Size; + + hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; + /* Check if a non-blocking transmit process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_TX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX_RX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_RX; + } + + /* Set the SMARTCARD DMA transfer complete callback */ + hsc->hdmarx->XferCpltCallback = SMARTCARD_DMAReceiveCplt; + + /* Set the DMA error callback */ + hsc->hdmarx->XferErrorCallback = SMARTCARD_DMAError; + + /* Enable the DMA Stream */ + tmp = (uint32_t*)&pData; + HAL_DMA_Start_IT(hsc->hdmarx, (uint32_t)&hsc->Instance->DR, *(uint32_t*)tmp, Size); + + /* Enable the DMA transfer for the receiver request by setting the DMAR bit + in the SMARTCARD CR3 register */ + hsc->Instance->CR3 |= USART_CR3_DMAR; + + /* Process Unlocked */ + __HAL_UNLOCK(hsc); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief This function handles SMARTCARD interrupt request. + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval None + */ +void HAL_SMARTCARD_IRQHandler(SMARTCARD_HandleTypeDef *hsc) +{ + uint32_t tmp1 = 0, tmp2 = 0; + + tmp1 = hsc->Instance->SR; + tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_PE); + + /* SMARTCARD parity error interrupt occurred --------------------------------*/ + if(((tmp1 & SMARTCARD_FLAG_PE) != RESET) && (tmp2 != RESET)) + { + __HAL_SMARTCARD_CLEAR_PEFLAG(hsc); + hsc->ErrorCode |= HAL_SMARTCARD_ERROR_PE; + } + + tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_ERR); + /* SMARTCARD frame error interrupt occurred ---------------------------------*/ + if(((tmp1 & SMARTCARD_FLAG_FE) != RESET) && (tmp2 != RESET)) + { + __HAL_SMARTCARD_CLEAR_FEFLAG(hsc); + hsc->ErrorCode |= HAL_SMARTCARD_ERROR_FE; + } + + tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_ERR); + /* SMARTCARD noise error interrupt occurred ---------------------------------*/ + if(((tmp1 & SMARTCARD_FLAG_NE) != RESET) && (tmp2 != RESET)) + { + __HAL_SMARTCARD_CLEAR_NEFLAG(hsc); + hsc->ErrorCode |= HAL_SMARTCARD_ERROR_NE; + } + + tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_ERR); + /* SMARTCARD Over-Run interrupt occurred ------------------------------------*/ + if(((tmp1 & SMARTCARD_FLAG_ORE) != RESET) && (tmp2 != RESET)) + { + __HAL_SMARTCARD_CLEAR_OREFLAG(hsc); + hsc->ErrorCode |= HAL_SMARTCARD_ERROR_ORE; + } + + tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_RXNE); + /* SMARTCARD in mode Receiver ----------------------------------------------*/ + if(((tmp1 & SMARTCARD_FLAG_RXNE) != RESET) && (tmp2 != RESET)) + { + SMARTCARD_Receive_IT(hsc); + } + + tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_TXE); + /* SMARTCARD in mode Transmitter -------------------------------------------*/ + if(((tmp1 & SMARTCARD_FLAG_TXE) != RESET) && (tmp2 != RESET)) + { + SMARTCARD_Transmit_IT(hsc); + } + + tmp2 = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_TC); + /* SMARTCARD in mode Transmitter (transmission end) ------------------------*/ + if(((tmp1 & SMARTCARD_FLAG_TC) != RESET) && (tmp2 != RESET)) + { + SMARTCARD_EndTransmit_IT(hsc); + } + + /* Call the Error call Back in case of Errors */ + if(hsc->ErrorCode != HAL_SMARTCARD_ERROR_NONE) + { + /* Set the SMARTCARD state ready to be able to start again the process */ + hsc->State= HAL_SMARTCARD_STATE_READY; + HAL_SMARTCARD_ErrorCallback(hsc); + } +} + +/** + * @brief Tx Transfer completed callbacks + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval None + */ + __weak void HAL_SMARTCARD_TxCpltCallback(SMARTCARD_HandleTypeDef *hsc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SMARTCARD_TxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Rx Transfer completed callbacks + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval None + */ +__weak void HAL_SMARTCARD_RxCpltCallback(SMARTCARD_HandleTypeDef *hsc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SMARTCARD_TxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief SMARTCARD error callbacks + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval None + */ + __weak void HAL_SMARTCARD_ErrorCallback(SMARTCARD_HandleTypeDef *hsc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SMARTCARD_ErrorCallback could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup SMARTCARD_Exported_Functions_Group3 Peripheral State and Errors functions + * @brief SMARTCARD State and Errors functions + * +@verbatim + =============================================================================== + ##### Peripheral State and Errors functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to control the SmartCard. + (+) HAL_SMARTCARD_GetState() API can be helpful to check in run-time the state of the SmartCard peripheral. + (+) HAL_SMARTCARD_GetError() check in run-time errors that could be occurred during communication. +@endverbatim + * @{ + */ + +/** + * @brief return the SMARTCARD state + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval HAL state + */ +HAL_SMARTCARD_StateTypeDef HAL_SMARTCARD_GetState(SMARTCARD_HandleTypeDef *hsc) +{ + return hsc->State; +} + +/** + * @brief Return the SMARTCARD error code + * @param hsc : pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for the specified SMARTCARD. + * @retval SMARTCARD Error Code + */ +uint32_t HAL_SMARTCARD_GetError(SMARTCARD_HandleTypeDef *hsc) +{ + return hsc->ErrorCode; +} + +/** + * @} + */ + +/** + * @brief DMA SMARTCARD transmit process complete callback + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SMARTCARD_DMATransmitCplt(DMA_HandleTypeDef *hdma) +{ + SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + + hsc->TxXferCount = 0; + + /* Disable the DMA transfer for transmit request by setting the DMAT bit + in the USART CR3 register */ + hsc->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT); + + /* Enable the SMARTCARD Transmit Complete Interrupt */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_TC); +} + +/** + * @brief DMA SMARTCARD receive process complete callback + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SMARTCARD_DMAReceiveCplt(DMA_HandleTypeDef *hdma) +{ + SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + + hsc->RxXferCount = 0; + + /* Disable the DMA transfer for the receiver request by setting the DMAR bit + in the USART CR3 register */ + hsc->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR); + + /* Check if a non-blocking transmit process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_TX_RX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_READY; + } + + HAL_SMARTCARD_RxCpltCallback(hsc); +} + +/** + * @brief DMA SMARTCARD communication error callback + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SMARTCARD_DMAError(DMA_HandleTypeDef *hdma) +{ + SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + + hsc->RxXferCount = 0; + hsc->TxXferCount = 0; + hsc->ErrorCode = HAL_SMARTCARD_ERROR_DMA; + hsc->State= HAL_SMARTCARD_STATE_READY; + + HAL_SMARTCARD_ErrorCallback(hsc); +} + +/** + * @brief This function handles SMARTCARD Communication Timeout. + * @param hsc: SMARTCARD handle + * @param Flag: specifies the SMARTCARD flag to check. + * @param Status: The new Flag status (SET or RESET). + * @param Timeout: Timeout duration + * @retval HAL status + */ +static HAL_StatusTypeDef SMARTCARD_WaitOnFlagUntilTimeout(SMARTCARD_HandleTypeDef *hsc, uint32_t Flag, FlagStatus Status, uint32_t Timeout) +{ + uint32_t tickstart = 0; + + /* Get tick */ + tickstart = HAL_GetTick(); + + /* Wait until flag is set */ + if(Status == RESET) + { + while(__HAL_SMARTCARD_GET_FLAG(hsc, Flag) == RESET) + { + /* Check for the Timeout */ + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) + { + /* Disable TXE and RXNE interrupts for the interrupt process */ + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_TXE); + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_RXNE); + + hsc->State= HAL_SMARTCARD_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hsc); + + return HAL_TIMEOUT; + } + } + } + } + else + { + while(__HAL_SMARTCARD_GET_FLAG(hsc, Flag) != RESET) + { + /* Check for the Timeout */ + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) + { + /* Disable TXE and RXNE interrupts for the interrupt process */ + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_TXE); + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_RXNE); + + hsc->State= HAL_SMARTCARD_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hsc); + + return HAL_TIMEOUT; + } + } + } + } + return HAL_OK; +} + +/** + * @brief Send an amount of data in non blocking mode + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval HAL status + */ +static HAL_StatusTypeDef SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsc) +{ + uint16_t* tmp; + uint32_t tmp1 = 0; + + tmp1 = hsc->State; + if((tmp1 == HAL_SMARTCARD_STATE_BUSY_TX) || (tmp1 == HAL_SMARTCARD_STATE_BUSY_TX_RX)) + { + tmp = (uint16_t*) hsc->pTxBuffPtr; + hsc->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF); + hsc->pTxBuffPtr += 1; + + if(--hsc->TxXferCount == 0) + { + /* Disable the SMARTCARD Transmit data register empty Interrupt */ + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_TXE); + + /* Enable the SMARTCARD Transmit Complete Interrupt */ + __HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_TC); + } + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Wraps up transmission in non blocking mode. + * @param hsmartcard: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for the specified SMARTCARD module. + * @retval HAL status + */ +static HAL_StatusTypeDef SMARTCARD_EndTransmit_IT(SMARTCARD_HandleTypeDef *hsmartcard) +{ + /* Disable the SMARTCARD Transmit Complete Interrupt */ + __HAL_SMARTCARD_DISABLE_IT(hsmartcard, SMARTCARD_IT_TC); + + /* Check if a receive process is ongoing or not */ + if(hsmartcard->State == HAL_SMARTCARD_STATE_BUSY_TX_RX) + { + hsmartcard->State = HAL_SMARTCARD_STATE_BUSY_RX; + } + else + { + /* Disable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_SMARTCARD_DISABLE_IT(hsmartcard, SMARTCARD_IT_ERR); + + hsmartcard->State = HAL_SMARTCARD_STATE_READY; + } + + HAL_SMARTCARD_TxCpltCallback(hsmartcard); + + return HAL_OK; +} + +/** + * @brief Receive an amount of data in non blocking mode + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval HAL status + */ +static HAL_StatusTypeDef SMARTCARD_Receive_IT(SMARTCARD_HandleTypeDef *hsc) +{ + uint16_t* tmp; + uint32_t tmp1 = 0; + + tmp1 = hsc->State; + if((tmp1 == HAL_SMARTCARD_STATE_BUSY_RX) || (tmp1 == HAL_SMARTCARD_STATE_BUSY_TX_RX)) + { + tmp = (uint16_t*) hsc->pRxBuffPtr; + *tmp = (uint16_t)(hsc->Instance->DR & (uint16_t)0x00FF); + hsc->pRxBuffPtr += 1; + + if(--hsc->RxXferCount == 0) + { + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_RXNE); + + /* Disable the SMARTCARD Parity Error Interrupt */ + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_PE); + + /* Disable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_SMARTCARD_DISABLE_IT(hsc, SMARTCARD_IT_ERR); + + /* Check if a non-blocking transmit process is ongoing or not */ + if(hsc->State == HAL_SMARTCARD_STATE_BUSY_TX_RX) + { + hsc->State = HAL_SMARTCARD_STATE_BUSY_TX; + } + else + { + hsc->State = HAL_SMARTCARD_STATE_READY; + } + + HAL_SMARTCARD_RxCpltCallback(hsc); + + return HAL_OK; + } + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Configure the SMARTCARD peripheral + * @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains + * the configuration information for SMARTCARD module. + * @retval None + */ +static void SMARTCARD_SetConfig(SMARTCARD_HandleTypeDef *hsc) +{ + uint32_t tmpreg = 0x00; + + /* Check the parameters */ + assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance)); + assert_param(IS_SMARTCARD_POLARITY(hsc->Init.CLKPolarity)); + assert_param(IS_SMARTCARD_PHASE(hsc->Init.CLKPhase)); + assert_param(IS_SMARTCARD_LASTBIT(hsc->Init.CLKLastBit)); + assert_param(IS_SMARTCARD_BAUDRATE(hsc->Init.BaudRate)); + assert_param(IS_SMARTCARD_WORD_LENGTH(hsc->Init.WordLength)); + assert_param(IS_SMARTCARD_STOPBITS(hsc->Init.StopBits)); + assert_param(IS_SMARTCARD_PARITY(hsc->Init.Parity)); + assert_param(IS_SMARTCARD_MODE(hsc->Init.Mode)); + assert_param(IS_SMARTCARD_NACK_STATE(hsc->Init.NACKState)); + + /* The LBCL, CPOL and CPHA bits have to be selected when both the transmitter and the + receiver are disabled (TE=RE=0) to ensure that the clock pulses function correctly. */ + hsc->Instance->CR1 &= (uint32_t)~((uint32_t)(USART_CR1_TE | USART_CR1_RE)); + + /*---------------------------- USART CR2 Configuration ---------------------*/ + tmpreg = hsc->Instance->CR2; + /* Clear CLKEN, CPOL, CPHA and LBCL bits */ + tmpreg &= (uint32_t)~((uint32_t)(USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_CLKEN | USART_CR2_LBCL)); + /* Configure the SMARTCARD Clock, CPOL, CPHA and LastBit -----------------------*/ + /* Set CPOL bit according to hsc->Init.CLKPolarity value */ + /* Set CPHA bit according to hsc->Init.CLKPhase value */ + /* Set LBCL bit according to hsc->Init.CLKLastBit value */ + /* Set Stop Bits: Set STOP[13:12] bits according to hsc->Init.StopBits value */ + tmpreg |= (uint32_t)(USART_CR2_CLKEN | hsc->Init.CLKPolarity | + hsc->Init.CLKPhase| hsc->Init.CLKLastBit | hsc->Init.StopBits); + /* Write to USART CR2 */ + hsc->Instance->CR2 = (uint32_t)tmpreg; + + tmpreg = hsc->Instance->CR2; + + /* Clear STOP[13:12] bits */ + tmpreg &= (uint32_t)~((uint32_t)USART_CR2_STOP); + + /* Set Stop Bits: Set STOP[13:12] bits according to hsc->Init.StopBits value */ + tmpreg |= (uint32_t)(hsc->Init.StopBits); + + /* Write to USART CR2 */ + hsc->Instance->CR2 = (uint32_t)tmpreg; + + /*-------------------------- USART CR1 Configuration -----------------------*/ + tmpreg = hsc->Instance->CR1; + + /* Clear M, PCE, PS, TE and RE bits */ + tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \ + USART_CR1_RE)); + + /* Configure the SMARTCARD Word Length, Parity and mode: + Set the M bits according to hsc->Init.WordLength value + Set PCE and PS bits according to hsc->Init.Parity value + Set TE and RE bits according to hsc->Init.Mode value */ + tmpreg |= (uint32_t)hsc->Init.WordLength | hsc->Init.Parity | hsc->Init.Mode; + + /* Write to USART CR1 */ + hsc->Instance->CR1 = (uint32_t)tmpreg; + + /*-------------------------- USART CR3 Configuration -----------------------*/ + /* Clear CTSE and RTSE bits */ + hsc->Instance->CR3 &= (uint32_t)~((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE)); + + /*-------------------------- USART BRR Configuration -----------------------*/ + if((hsc->Instance == USART1) || (hsc->Instance == USART6)) + { + hsc->Instance->BRR = SMARTCARD_BRR(HAL_RCC_GetPCLK2Freq(), hsc->Init.BaudRate); + } + else + { + hsc->Instance->BRR = SMARTCARD_BRR(HAL_RCC_GetPCLK1Freq(), hsc->Init.BaudRate); + } +} + +/** + * @} + */ + +#endif /* HAL_SMARTCARD_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3