--- /dev/null
+/**
+ ******************************************************************************
+ * @file stm32f1xx_hal_smartcard.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 15-December-2014
+ * @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
+ * + Peripheral Control 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 interface clock of the USARTx associated to the SMARTCARD.
+ (##) SMARTCARD pins configuration:
+ (+++) Enable the clock for the SMARTCARD GPIOs.
+ (+++) Configure the USART pins (TX as alternate function pull-up, RX as alternate function Input).
+ (##) 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 channel.
+ (+++) Enable the DMAx interface clock.
+ (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
+ (+++) Configure the DMA Tx/Rx channel.
+ (+++) Associate the initilalized 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 USARTx interrupt priority and enable the NVIC USART IRQ handle
+ (used for last byte sending completion detection in DMA non circular mode)
+
+ (#) 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:
+ (++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
+ by calling the customed HAL_SMARTCARD_MspInit(&hsc) 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
+ (+) __HAL_SMARTCARD_GET_IT_SOURCE: Check whether the specified SMARTCARD interrupt has occurred or not
+
+ [..]
+ (@) You can refer to the SMARTCARD HAL driver header file for more useful macros
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+ *
+ * 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 "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup SMARTCARD SMARTCARD
+ * @brief HAL SMARTCARD module driver
+ * @{
+ */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macros --------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @addtogroup SMARTCARD_Private_Functions SMARTCARD Private Functions
+ * @{
+ */
+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_SetConfig (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 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 manuals
+ (RM0008 for STM32F10Xxx MCUs and RM0041 for STM32F100xx MCUs)).
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the SmartCard mode according to the specified
+ * parameters in the SMARTCARD_HandleTypeDef and create the associated handle.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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 Wordlength, Parity and Stop bits parameters */
+ if ( (!(IS_SMARTCARD_WORD_LENGTH(hsc->Init.WordLength)))
+ ||(!(IS_SMARTCARD_STOPBITS(hsc->Init.StopBits)))
+ ||(!(IS_SMARTCARD_PARITY(hsc->Init.Parity))) )
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance));
+ assert_param(IS_SMARTCARD_NACK_STATE(hsc->Init.NACKState));
+ assert_param(IS_SMARTCARD_PRESCALER(hsc->Init.Prescaler));
+
+ if(hsc->State == HAL_SMARTCARD_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ hsc-> Lock = HAL_UNLOCKED;
+
+ /* Init the low level hardware */
+ HAL_SMARTCARD_MspInit(hsc);
+ }
+
+ hsc->State = HAL_SMARTCARD_STATE_BUSY;
+
+ /* Disable the Peripheral */
+ __HAL_SMARTCARD_DISABLE(hsc);
+
+ /* 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.*/
+ CLEAR_BIT(hsc->Instance->CR2, USART_CR2_LINEN);
+ CLEAR_BIT(hsc->Instance->CR3, (USART_CR3_IREN | USART_CR3_HDSEL));
+
+ /* Enable the Peripharal */
+ __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 */
+ SET_BIT(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 SMARTCARD peripheral
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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);
+
+ hsc->Instance->CR1 = 0x0;
+ hsc->Instance->CR2 = 0x0;
+ hsc->Instance->CR3 = 0x0;
+ hsc->Instance->BRR = 0x0;
+ hsc->Instance->GTPR = 0x0;
+
+ /* 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 the specified 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 can be implemented in the user file
+ */
+}
+
+/**
+ * @brief SMARTCARD MSP DeInit.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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 can 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.
+ (++) No-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
+ 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 Sends an amount of data in blocking mode.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified SMARTCARD module.
+ * @param pData: Pointer to data buffer
+ * @param Size: Amount of data to be sent
+ * @param Timeout: Specify timeout value
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SMARTCARD_Transmit(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ uint32_t tmp_state = 0;
+
+ tmp_state = hsc->State;
+ if((tmp_state == HAL_SMARTCARD_STATE_READY) || (tmp_state == 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)
+ {
+ if(SMARTCARD_WaitOnFlagUntilTimeout(hsc, SMARTCARD_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ WRITE_REG(hsc->Instance->DR, (*pData++ & (uint8_t)0xFF));
+ hsc->TxXferCount--;
+ }
+
+ 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 the specified SMARTCARD module.
+ * @param pData: Pointer to data buffer
+ * @param Size: Amount of data to be received
+ * @param Timeout: Specify timeout value
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SMARTCARD_Receive(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ uint32_t tmp_state = 0;
+
+ tmp_state = hsc->State;
+ if((tmp_state == HAL_SMARTCARD_STATE_READY) || (tmp_state == 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)
+ {
+ if(SMARTCARD_WaitOnFlagUntilTimeout(hsc, SMARTCARD_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ *pData++ = (uint8_t)(hsc->Instance->DR & (uint8_t)0x00FF);
+ hsc->RxXferCount--;
+ }
+
+ /* 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 Sends an amount of data in non-blocking mode.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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 tmp_state = 0;
+
+ tmp_state = hsc->State;
+ if((tmp_state == HAL_SMARTCARD_STATE_READY) || (tmp_state == 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 Error Interrupt: (Frame error, noise error, overrun error) */
+ __HAL_SMARTCARD_ENABLE_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 Receives an amount of data in non-blocking mode.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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 tmp_state = 0;
+
+ tmp_state = hsc->State;
+ if((tmp_state == HAL_SMARTCARD_STATE_READY) || (tmp_state == 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 Sends an amount of data in non-blocking mode.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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 = 0;
+ uint32_t tmp_state = 0;
+
+ tmp_state = hsc->State;
+ if((tmp_state == HAL_SMARTCARD_STATE_READY) || (tmp_state == 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 channel */
+ 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 */
+ SET_BIT(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 the specified 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.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SMARTCARD_Receive_DMA(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size)
+{
+ uint32_t *tmp = 0;
+ uint32_t tmp_state = 0;
+
+ tmp_state = hsc->State;
+ if((tmp_state == HAL_SMARTCARD_STATE_READY) || (tmp_state == 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 channel */
+ 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 */
+ SET_BIT(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 the specified SMARTCARD module.
+ * @retval None
+ */
+void HAL_SMARTCARD_IRQHandler(SMARTCARD_HandleTypeDef *hsc)
+{
+ uint32_t tmp_flag = 0, tmp_it_source = 0;
+
+ tmp_flag = __HAL_SMARTCARD_GET_FLAG(hsc, SMARTCARD_FLAG_PE);
+ tmp_it_source = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_PE);
+ /* SMARTCARD parity error interrupt occurred -----------------------------------*/
+ if((tmp_flag != RESET) && (tmp_it_source != RESET))
+ {
+ __HAL_SMARTCARD_CLEAR_PEFLAG(hsc);
+ hsc->ErrorCode |= HAL_SMARTCARD_ERROR_PE;
+ }
+
+ tmp_flag = __HAL_SMARTCARD_GET_FLAG(hsc, SMARTCARD_FLAG_FE);
+ tmp_it_source = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_ERR);
+ /* SMARTCARD frame error interrupt occurred ------------------------------------*/
+ if((tmp_flag != RESET) && (tmp_it_source != RESET))
+ {
+ __HAL_SMARTCARD_CLEAR_FEFLAG(hsc);
+ hsc->ErrorCode |= HAL_SMARTCARD_ERROR_FE;
+ }
+
+ tmp_flag = __HAL_SMARTCARD_GET_FLAG(hsc, SMARTCARD_FLAG_NE);
+ /* SMARTCARD noise error interrupt occurred ------------------------------------*/
+ if((tmp_flag != RESET) && (tmp_it_source != RESET))
+ {
+ __HAL_SMARTCARD_CLEAR_NEFLAG(hsc);
+ hsc->ErrorCode |= HAL_SMARTCARD_ERROR_NE;
+ }
+
+ tmp_flag = __HAL_SMARTCARD_GET_FLAG(hsc, SMARTCARD_FLAG_ORE);
+ /* SMARTCARD Over-Run interrupt occurred ---------------------------------------*/
+ if((tmp_flag != RESET) && (tmp_it_source != RESET))
+ {
+ __HAL_SMARTCARD_CLEAR_OREFLAG(hsc);
+ hsc->ErrorCode |= HAL_SMARTCARD_ERROR_ORE;
+ }
+
+ tmp_flag = __HAL_SMARTCARD_GET_FLAG(hsc, SMARTCARD_FLAG_RXNE);
+ tmp_it_source = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_RXNE);
+ /* SMARTCARD in mode Receiver --------------------------------------------------*/
+ if((tmp_flag != RESET) && (tmp_it_source != RESET))
+ {
+ SMARTCARD_Receive_IT(hsc);
+ }
+
+ tmp_flag = __HAL_SMARTCARD_GET_FLAG(hsc, SMARTCARD_FLAG_TXE);
+ tmp_it_source = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_TXE);
+ /* SMARTCARD in mode Transmitter -----------------------------------------------*/
+ if((tmp_flag != RESET) && (tmp_it_source != RESET))
+ {
+ SMARTCARD_Transmit_IT(hsc);
+ }
+
+ tmp_flag = __HAL_SMARTCARD_GET_FLAG(hsc, SMARTCARD_FLAG_TC);
+ tmp_it_source = __HAL_SMARTCARD_GET_IT_SOURCE(hsc, SMARTCARD_IT_TC);
+ /* SMARTCARD in mode Transmitter (transmission end) ------------------------*/
+ if((tmp_flag != RESET) && (tmp_it_source != 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 callback.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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 can be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Transfer completed callback.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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_RxCpltCallback can be implemented in the user file
+ */
+}
+
+/**
+ * @brief SMARTCARD error callback.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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 can 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 return the State of SmartCard
+ communication process and also return Peripheral Errors occurred during communication process
+ (+) 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 Returns the SMARTCARD state.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified 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 module.
+ * @retval SMARTCARD Error Code
+ */
+uint32_t HAL_SMARTCARD_GetError(SMARTCARD_HandleTypeDef *hsc)
+{
+ return hsc->ErrorCode;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup SMARTCARD_Private_Functions SMARTCARD Private Functions
+ * @brief SMARTCARD Private functions
+ * @{
+ */
+/**
+ * @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 SMARTCARD CR3 register */
+ CLEAR_BIT(hsc->Instance->CR3, 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 */
+ CLEAR_BIT(hsc->Instance->CR3, 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: 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 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 the specified SMARTCARD module.
+ * Function called under interruption only, once
+ * interruptions have been enabled by HAL_SMARTCARD_Transmit_IT()
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsc)
+{
+ uint32_t tmp_state = 0;
+
+ tmp_state = hsc->State;
+ if((tmp_state == HAL_SMARTCARD_STATE_BUSY_TX) || (tmp_state == HAL_SMARTCARD_STATE_BUSY_TX_RX))
+ {
+ WRITE_REG(hsc->Instance->DR, (*hsc->pTxBuffPtr++ & (uint8_t)0xFF));
+
+ 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 the specified SMARTCARD module.
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef SMARTCARD_Receive_IT(SMARTCARD_HandleTypeDef *hsc)
+{
+ uint32_t tmp_state = 0;
+
+ tmp_state = hsc->State;
+ if((tmp_state == HAL_SMARTCARD_STATE_BUSY_RX) || (tmp_state == HAL_SMARTCARD_STATE_BUSY_TX_RX))
+ {
+ *hsc->pRxBuffPtr++ = (uint8_t)(hsc->Instance->DR & (uint8_t)0xFF);
+
+ 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 Configures the SMARTCARD peripheral.
+ * @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
+ * the configuration information for the specified SMARTCARD module.
+ * @retval None
+ */
+static void SMARTCARD_SetConfig(SMARTCARD_HandleTypeDef *hsc)
+{
+ /* Check the parameters */
+ 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. */
+ CLEAR_BIT(hsc->Instance->CR1, (uint32_t)(USART_CR1_TE | USART_CR1_RE));
+
+ /*------ SMARTCARD-associated USART registers setting : CR2 Configuration ------*/
+ /* Clear CLKEN, CPOL, CPHA and LBCL bits */
+ /* 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 */
+ MODIFY_REG(hsc->Instance->CR2,
+ ((uint32_t)(USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_CLKEN | USART_CR2_LBCL)),
+ ((uint32_t)(USART_CR2_CLKEN | hsc->Init.CLKPolarity | hsc->Init.CLKPhase| hsc->Init.CLKLastBit)) );
+
+ /* Set Stop Bits: Set STOP[13:12] bits according to hsc->Init.StopBits value */
+ MODIFY_REG(hsc->Instance->CR2, USART_CR2_STOP,(uint32_t)(hsc->Init.StopBits));
+
+ /*------ SMARTCARD-associated USART registers setting : CR1 Configuration ------*/
+ /* Clear M, PCE, PS, TE and RE bits */
+ /* Configure the SMARTCARD Word Length, Parity and mode:
+ Set the M according to hsc->Init.WordLength value (forced to 1 as 9B data frame should be selected)
+ Set PCE and PS bits according to hsc->Init.Parity value (PCE bit forced to 1 as parity control should always be enabled)
+ Set TE and RE bits according to hsc->Init.Mode value */
+ MODIFY_REG(hsc->Instance->CR1,
+ ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE)),
+ ((uint32_t)(USART_CR1_M | USART_CR1_PCE | hsc->Init.Parity | hsc->Init.Mode)) );
+
+ /*------ SMARTCARD-associated USART registers setting : CR3 Configuration ------*/
+ /* Clear CTSE and RTSE bits */
+ CLEAR_BIT(hsc->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE));
+
+ /*------ SMARTCARD-associated USART registers setting : BRR Configuration ------*/
+ if(hsc->Instance == USART1)
+ {
+ 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****/
projects / qmk_firmware.git / blobdiff