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Julien Chevalley
197
Drivers/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_smartcard_ex.c
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197
Drivers/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_smartcard_ex.c
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/**
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******************************************************************************
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* @file stm32f7xx_hal_smartcard_ex.c
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* @author MCD Application Team
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* @brief SMARTCARD HAL module driver.
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* This file provides extended firmware functions to manage the following
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* functionalities of the SmartCard.
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* + Initialization and de-initialization functions
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* + Peripheral Control functions
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*
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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@verbatim
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=============================================================================
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##### SMARTCARD peripheral extended features #####
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=============================================================================
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[..]
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The Extended SMARTCARD HAL driver can be used as follows:
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(#) After having configured the SMARTCARD basic features with HAL_SMARTCARD_Init(),
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then program SMARTCARD advanced features if required (TX/RX pins swap, TimeOut,
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auto-retry counter,...) in the hsmartcard AdvancedInit structure.
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@endverbatim
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f7xx_hal.h"
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/** @addtogroup STM32F7xx_HAL_Driver
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* @{
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*/
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/** @defgroup SMARTCARDEx SMARTCARDEx
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* @brief SMARTCARD Extended HAL module driver
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* @{
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*/
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#ifdef HAL_SMARTCARD_MODULE_ENABLED
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macros ------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/** @defgroup SMARTCARDEx_Exported_Functions SMARTCARD Extended Exported Functions
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* @{
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*/
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/** @defgroup SMARTCARDEx_Exported_Functions_Group1 Extended Peripheral Control functions
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* @brief Extended control functions
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*
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@verbatim
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===============================================================================
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##### Peripheral Control functions #####
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===============================================================================
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[..]
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This subsection provides a set of functions allowing to initialize the SMARTCARD.
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(+) HAL_SMARTCARDEx_BlockLength_Config() API allows to configure the Block Length on the fly
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(+) HAL_SMARTCARDEx_TimeOut_Config() API allows to configure the receiver timeout value on the fly
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(+) HAL_SMARTCARDEx_EnableReceiverTimeOut() API enables the receiver timeout feature
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(+) HAL_SMARTCARDEx_DisableReceiverTimeOut() API disables the receiver timeout feature
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@endverbatim
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* @{
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*/
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/** @brief Update on the fly the SMARTCARD block length in RTOR register.
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* @param hsmartcard Pointer to a SMARTCARD_HandleTypeDef structure that contains
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* the configuration information for the specified SMARTCARD module.
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* @param BlockLength SMARTCARD block length (8-bit long at most)
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* @retval None
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*/
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void HAL_SMARTCARDEx_BlockLength_Config(SMARTCARD_HandleTypeDef *hsmartcard, uint8_t BlockLength)
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{
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MODIFY_REG(hsmartcard->Instance->RTOR, USART_RTOR_BLEN, ((uint32_t)BlockLength << USART_RTOR_BLEN_Pos));
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}
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/** @brief Update on the fly the receiver timeout value in RTOR register.
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* @param hsmartcard Pointer to a SMARTCARD_HandleTypeDef structure that contains
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* the configuration information for the specified SMARTCARD module.
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* @param TimeOutValue receiver timeout value in number of baud blocks. The timeout
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* value must be less or equal to 0x0FFFFFFFF.
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* @retval None
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*/
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void HAL_SMARTCARDEx_TimeOut_Config(SMARTCARD_HandleTypeDef *hsmartcard, uint32_t TimeOutValue)
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{
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assert_param(IS_SMARTCARD_TIMEOUT_VALUE(hsmartcard->Init.TimeOutValue));
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MODIFY_REG(hsmartcard->Instance->RTOR, USART_RTOR_RTO, TimeOutValue);
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}
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/** @brief Enable the SMARTCARD receiver timeout feature.
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* @param hsmartcard Pointer to a SMARTCARD_HandleTypeDef structure that contains
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* the configuration information for the specified SMARTCARD module.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_SMARTCARDEx_EnableReceiverTimeOut(SMARTCARD_HandleTypeDef *hsmartcard)
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{
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if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY)
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{
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/* Process Locked */
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__HAL_LOCK(hsmartcard);
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hsmartcard->gState = HAL_SMARTCARD_STATE_BUSY;
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/* Set the USART RTOEN bit */
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SET_BIT(hsmartcard->Instance->CR2, USART_CR2_RTOEN);
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hsmartcard->gState = HAL_SMARTCARD_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hsmartcard);
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return HAL_OK;
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}
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else
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{
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return HAL_BUSY;
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}
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}
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/** @brief Disable the SMARTCARD receiver timeout feature.
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* @param hsmartcard Pointer to a SMARTCARD_HandleTypeDef structure that contains
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* the configuration information for the specified SMARTCARD module.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_SMARTCARDEx_DisableReceiverTimeOut(SMARTCARD_HandleTypeDef *hsmartcard)
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{
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if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY)
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{
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/* Process Locked */
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__HAL_LOCK(hsmartcard);
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hsmartcard->gState = HAL_SMARTCARD_STATE_BUSY;
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/* Clear the USART RTOEN bit */
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CLEAR_BIT(hsmartcard->Instance->CR2, USART_CR2_RTOEN);
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hsmartcard->gState = HAL_SMARTCARD_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hsmartcard);
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return HAL_OK;
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}
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else
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{
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return HAL_BUSY;
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}
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}
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/**
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* @}
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*/
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/** @defgroup SMARTCARDEx_Exported_Functions_Group2 Extended Peripheral IO operation functions
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* @brief SMARTCARD Transmit and Receive functions
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*
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* @{
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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/** @defgroup SMARTCARDEx_Private_Functions SMARTCARD Extended Private Functions
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* @{
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*/
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/**
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* @}
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*/
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#endif /* HAL_SMARTCARD_MODULE_ENABLED */
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/**
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* @}
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*/
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/**
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* @}
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*/
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