Thomas Lyp
Initial commit
Diff: mbed-dev-master/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_irda.c
- Revision:
- 0:bb348c97df44
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev-master/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_irda.c Wed Sep 16 01:11:49 2020 +0000
@@ -0,0 +1,2106 @@
+/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_irda.c
+ * @author MCD Application Team
+ * @brief IRDA HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the IrDA SIR ENDEC block (IrDA):
+ * + Initialization and de-initialization methods
+ * + IO operation methods
+ * + Peripheral Control methods
+ *
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ The IRDA HAL driver can be used as follows:
+
+ (#) Declare a IRDA_HandleTypeDef handle structure.
+ (#) Initialize the IRDA low level resources by implementing the HAL_IRDA_MspInit() API:
+ (##) Enable the USARTx interface clock.
+ (##) IRDA pins configuration:
+ (+++) Enable the clock for the IRDA GPIOs.
+ (+++) Configure these IRDA pins as alternate function pull-up.
+ (##) NVIC configuration if you need to use interrupt process (HAL_IRDA_Transmit_IT()
+ and HAL_IRDA_Receive_IT() APIs):
+ (+++) Configure the USARTx interrupt priority.
+ (+++) Enable the NVIC USART IRQ handle.
+ (##) DMA Configuration if you need to use DMA process (HAL_IRDA_Transmit_DMA()
+ and HAL_IRDA_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 IRDA 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, Parity, IrDA Mode, Prescaler
+ and Mode(Receiver/Transmitter) in the hirda Init structure.
+
+ (#) Initialize the IRDA registers by calling the HAL_IRDA_Init() API:
+ (++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
+ by calling the customized HAL_IRDA_MspInit() API.
+ -@@- The specific IRDA interrupts (Transmission complete interrupt,
+ RXNE interrupt and Error Interrupts) will be managed using the macros
+ __HAL_IRDA_ENABLE_IT() and __HAL_IRDA_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_IRDA_Transmit()
+ (+) Receive an amount of data in blocking mode using HAL_IRDA_Receive()
+
+ *** Interrupt mode IO operation ***
+ ===================================
+ [..]
+ (+) Send an amount of data in non blocking mode using HAL_IRDA_Transmit_IT()
+ (+) At transmission end of transfer HAL_IRDA_TxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_IRDA_TxCpltCallback
+ (+) Receive an amount of data in non blocking mode using HAL_IRDA_Receive_IT()
+ (+) At reception end of transfer HAL_IRDA_RxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_IRDA_RxCpltCallback
+ (+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can
+ add his own code by customization of function pointer HAL_IRDA_ErrorCallback
+
+ *** DMA mode IO operation ***
+ =============================
+ [..]
+ (+) Send an amount of data in non blocking mode (DMA) using HAL_IRDA_Transmit_DMA()
+ (+) At transmission end of transfer HAL_IRDA_TxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_IRDA_TxCpltCallback
+ (+) Receive an amount of data in non blocking mode (DMA) using HAL_IRDA_Receive_DMA()
+ (+) At reception end of transfer HAL_IRDA_RxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_IRDA_RxCpltCallback
+ (+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can
+ add his own code by customization of function pointer HAL_IRDA_ErrorCallback
+
+ *** IRDA HAL driver macros list ***
+ ===================================
+ [..]
+ Below the list of most used macros in IRDA HAL driver.
+
+ (+) __HAL_IRDA_ENABLE: Enable the IRDA peripheral
+ (+) __HAL_IRDA_DISABLE: Disable the IRDA peripheral
+ (+) __HAL_IRDA_GET_FLAG : Checks whether the specified IRDA flag is set or not
+ (+) __HAL_IRDA_CLEAR_FLAG : Clears the specified IRDA pending flag
+ (+) __HAL_IRDA_ENABLE_IT: Enables the specified IRDA interrupt
+ (+) __HAL_IRDA_DISABLE_IT: Disables the specified IRDA interrupt
+
+ [..]
+ (@) You can refer to the IRDA HAL driver header file for more useful macros
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2017 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 "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup IRDA IRDA
+ * @brief HAL IRDA module driver
+ * @{
+ */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @addtogroup IRDA_Private_Constants
+ * @{
+ */
+/**
+ * @}
+ */
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @addtogroup IRDA_Private_Functions
+ * @{
+ */
+static void IRDA_SetConfig (IRDA_HandleTypeDef *hirda);
+static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda);
+static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda);
+static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda);
+static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma);
+static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma);
+static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
+static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma);
+static void IRDA_DMAError(DMA_HandleTypeDef *hdma);
+static void IRDA_DMAAbortOnError(DMA_HandleTypeDef *hdma);
+static void IRDA_DMATxAbortCallback(DMA_HandleTypeDef *hdma);
+static void IRDA_DMARxAbortCallback(DMA_HandleTypeDef *hdma);
+static void IRDA_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
+static void IRDA_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
+static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Tickstart,uint32_t Timeout);
+static void IRDA_EndTxTransfer(IRDA_HandleTypeDef *hirda);
+static void IRDA_EndRxTransfer(IRDA_HandleTypeDef *hirda);
+/**
+ * @}
+ */
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup IRDA_Exported_Functions IrDA Exported Functions
+ * @{
+ */
+
+/** @defgroup IRDA_Exported_Functions_Group1 IrDA 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 USARTx or the UARTy
+ in IrDA mode.
+ (+) For the asynchronous mode only these parameters can be configured:
+ (++) BaudRate
+ (++) WordLength
+ (++) Parity: If the parity is enabled, then the MSB bit of the data written
+ in the data register is transmitted but is changed by the parity bit.
+ Depending on the frame length defined by the M bit (8-bits or 9-bits),
+ please refer to Reference manual for possible IRDA frame formats.
+ (++) Prescaler: A pulse of width less than two and greater than one PSC period(s) may or may
+ not be rejected. The receiver set up time should be managed by software. The IrDA physical layer
+ specification specifies a minimum of 10 ms delay between transmission and
+ reception (IrDA is a half duplex protocol).
+ (++) Mode: Receiver/transmitter modes
+ (++) IrDAMode: the IrDA can operate in the Normal mode or in the Low power mode.
+ [..]
+ The HAL_IRDA_Init() API follows IRDA configuration procedures (details for the procedures
+ are available in reference manual).
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the IRDA mode according to the specified
+ * parameters in the IRDA_InitTypeDef and create the associated handle.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda)
+{
+ /* Check the IRDA handle allocation */
+ if(hirda == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the IRDA instance parameters */
+ assert_param(IS_IRDA_INSTANCE(hirda->Instance));
+ /* Check the IRDA mode parameter in the IRDA handle */
+ assert_param(IS_IRDA_POWERMODE(hirda->Init.IrDAMode));
+
+ if(hirda->gState == HAL_IRDA_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ hirda->Lock = HAL_UNLOCKED;
+ /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
+ HAL_IRDA_MspInit(hirda);
+ }
+
+ hirda->gState = HAL_IRDA_STATE_BUSY;
+
+ /* Disable the IRDA peripheral */
+ __HAL_IRDA_DISABLE(hirda);
+
+ /* Set the IRDA communication parameters */
+ IRDA_SetConfig(hirda);
+
+ /* In IrDA mode, the following bits must be kept cleared:
+ - LINEN, STOP and CLKEN bits in the USART_CR2 register,
+ - SCEN and HDSEL bits in the USART_CR3 register.*/
+ CLEAR_BIT(hirda->Instance->CR2, USART_CR2_LINEN | USART_CR2_STOP | USART_CR2_CLKEN);
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_SCEN | USART_CR3_HDSEL);
+
+ /* Enable the IRDA peripheral */
+ __HAL_IRDA_ENABLE(hirda);
+
+ /* Set the prescaler */
+ MODIFY_REG(hirda->Instance->GTPR, USART_GTPR_PSC, hirda->Init.Prescaler);
+
+ /* Configure the IrDA mode */
+ MODIFY_REG(hirda->Instance->CR3, USART_CR3_IRLP, hirda->Init.IrDAMode);
+
+ /* Enable the IrDA mode by setting the IREN bit in the CR3 register */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_IREN);
+
+ /* Initialize the IRDA state*/
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ hirda->gState= HAL_IRDA_STATE_READY;
+ hirda->RxState= HAL_IRDA_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief DeInitializes the IRDA peripheral
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_DeInit(IRDA_HandleTypeDef *hirda)
+{
+ /* Check the IRDA handle allocation */
+ if(hirda == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_IRDA_INSTANCE(hirda->Instance));
+
+ hirda->gState = HAL_IRDA_STATE_BUSY;
+
+ /* Disable the Peripheral */
+ __HAL_IRDA_DISABLE(hirda);
+
+ /* DeInit the low level hardware */
+ HAL_IRDA_MspDeInit(hirda);
+
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+
+ hirda->gState = HAL_IRDA_STATE_RESET;
+ hirda->RxState = HAL_IRDA_STATE_RESET;
+
+ /* Release Lock */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief IRDA MSP Init.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval None
+ */
+__weak void HAL_IRDA_MspInit(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_IRDA_MspInit could be implemented in the user file
+ */
+}
+
+/**
+ * @brief IRDA MSP DeInit.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval None
+ */
+__weak void HAL_IRDA_MspDeInit(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_IRDA_MspDeInit could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup IRDA_Exported_Functions_Group2 IO operation functions
+ * @brief IRDA Transmit/Receive functions
+ *
+@verbatim
+ ===============================================================================
+ ##### IO operation functions #####
+ ===============================================================================
+ This subsection provides a set of functions allowing to manage the IRDA data transfers.
+ [..]
+ IrDA is a half duplex communication protocol. If the Transmitter is busy, any data
+ on the IrDA receive line will be ignored by the IrDA decoder and if the Receiver
+ is busy, data on the TX from the USART to IrDA will not be encoded by IrDA.
+ While receiving data, transmission should be avoided as the data to be transmitted
+ could be corrupted.
+
+ (#) 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, These APIs return the HAL status.
+ The end of the data processing will be indicated through the
+ dedicated IRDA IRQ when using Interrupt mode or the DMA IRQ when
+ using DMA mode.
+ The HAL_IRDA_TxCpltCallback(), HAL_IRDA_RxCpltCallback() user callbacks
+ will be executed respectively at the end of the transmit or Receive process
+ The HAL_IRDA_ErrorCallback() user callback will be executed when a communication error is detected
+
+ (#) Blocking mode API's are :
+ (++) HAL_IRDA_Transmit()
+ (++) HAL_IRDA_Receive()
+
+ (#) Non Blocking mode APIs with Interrupt are :
+ (++) HAL_IRDA_Transmit_IT()
+ (++) HAL_IRDA_Receive_IT()
+ (++) HAL_IRDA_IRQHandler()
+
+ (#) Non Blocking mode functions with DMA are :
+ (++) HAL_IRDA_Transmit_DMA()
+ (++) HAL_IRDA_Receive_DMA()
+
+ (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
+ (++) HAL_IRDA_TxCpltCallback()
+ (++) HAL_IRDA_RxCpltCallback()
+ (++) HAL_IRDA_ErrorCallback()
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Sends an amount of data in blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA 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_IRDA_Transmit(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ uint16_t* tmp;
+ uint32_t tickstart = 0U;
+
+ /* Check that a Tx process is not already ongoing */
+ if(hirda->gState == HAL_IRDA_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ hirda->gState = HAL_IRDA_STATE_BUSY_TX;
+
+ /* Init tickstart for timeout managment*/
+ tickstart = HAL_GetTick();
+
+ hirda->TxXferSize = Size;
+ hirda->TxXferCount = Size;
+ while(hirda->TxXferCount > 0U)
+ {
+ hirda->TxXferCount--;
+ if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ tmp = (uint16_t*) pData;
+ hirda->Instance->DR = (*tmp & (uint16_t)0x01FF);
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ pData +=2;
+ }
+ else
+ {
+ pData +=1;
+ }
+ }
+ else
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ hirda->Instance->DR = (*pData++ & (uint8_t)0xFF);
+ }
+ }
+
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ /* At end of Tx process, restore hirda->gState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receive an amount of data in blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA 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_IRDA_Receive(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ uint16_t* tmp;
+ uint32_t tickstart = 0U;
+
+ /* Check that a Rx process is not already ongoing */
+ if(hirda->RxState == HAL_IRDA_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ hirda->RxState = HAL_IRDA_STATE_BUSY_RX;
+
+ /* Init tickstart for timeout managment*/
+ tickstart = HAL_GetTick();
+
+ hirda->RxXferSize = Size;
+ hirda->RxXferCount = Size;
+ /* Check the remain data to be received */
+ while(hirda->RxXferCount > 0U)
+ {
+ hirda->RxXferCount--;
+ if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ tmp = (uint16_t*) pData ;
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ *tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x01FF);
+ pData +=2;
+ }
+ else
+ {
+ *tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x00FF);
+ pData +=1;
+ }
+ }
+ else
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ *pData++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x00FF);
+ }
+ else
+ {
+ *pData++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x007F);
+ }
+ }
+ }
+
+ /* At end of Rx process, restore hirda->RxState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Send an amount of data in non blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @param pData Pointer to data buffer
+ * @param Size Amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
+{
+ /* Check that a Tx process is not already ongoing */
+ if(hirda->gState == HAL_IRDA_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ hirda->pTxBuffPtr = pData;
+ hirda->TxXferSize = Size;
+ hirda->TxXferCount = Size;
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ hirda->gState = HAL_IRDA_STATE_BUSY_TX;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ /* Enable the IRDA Transmit Data Register Empty Interrupt */
+ SET_BIT(hirda->Instance->CR1, USART_CR1_TXEIE);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receives an amount of data in non blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @param pData Pointer to data buffer
+ * @param Size Amount of data to be received
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Receive_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
+{
+ /* Check that a Rx process is not already ongoing */
+ if(hirda->RxState == HAL_IRDA_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ hirda->pRxBuffPtr = pData;
+ hirda->RxXferSize = Size;
+ hirda->RxXferCount = Size;
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ hirda->RxState = HAL_IRDA_STATE_BUSY_RX;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ /* Enable the IRDA Parity Error and Data Register not empty Interrupts */
+ SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE| USART_CR1_RXNEIE);
+
+ /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Sends an amount of data in non blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @param pData Pointer to data buffer
+ * @param Size Amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Transmit_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
+{
+ uint32_t *tmp;
+
+ /* Check that a Tx process is not already ongoing */
+ if(hirda->gState == HAL_IRDA_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ hirda->pTxBuffPtr = pData;
+ hirda->TxXferSize = Size;
+ hirda->TxXferCount = Size;
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ hirda->gState = HAL_IRDA_STATE_BUSY_TX;
+
+ /* Set the IRDA DMA transfer complete callback */
+ hirda->hdmatx->XferCpltCallback = IRDA_DMATransmitCplt;
+
+ /* Set the IRDA DMA half transfer complete callback */
+ hirda->hdmatx->XferHalfCpltCallback = IRDA_DMATransmitHalfCplt;
+
+ /* Set the DMA error callback */
+ hirda->hdmatx->XferErrorCallback = IRDA_DMAError;
+
+ /* Set the DMA abort callback */
+ hirda->hdmatx->XferAbortCallback = NULL;
+
+ /* Enable the IRDA transmit DMA Stream */
+ tmp = (uint32_t*)&pData;
+ HAL_DMA_Start_IT(hirda->hdmatx, *(uint32_t*)tmp, (uint32_t)&hirda->Instance->DR, Size);
+
+ /* Clear the TC flag in the SR register by writing 0 to it */
+ __HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_TC);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ /* Enable the DMA transfer for transmit request by setting the DMAT bit
+ in the USART CR3 register */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receives an amount of data in non blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @param pData Pointer to data buffer
+ * @param Size Amount of data to be received
+ * @note When the IRDA parity is enabled (PCE = 1) the data received contain the parity bit.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Receive_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
+{
+ uint32_t *tmp;
+
+ /* Check that a Rx process is not already ongoing */
+ if(hirda->RxState == HAL_IRDA_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ hirda->pRxBuffPtr = pData;
+ hirda->RxXferSize = Size;
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ hirda->RxState = HAL_IRDA_STATE_BUSY_RX;
+
+ /* Set the IRDA DMA transfer complete callback */
+ hirda->hdmarx->XferCpltCallback = IRDA_DMAReceiveCplt;
+
+ /* Set the IRDA DMA half transfer complete callback */
+ hirda->hdmarx->XferHalfCpltCallback = IRDA_DMAReceiveHalfCplt;
+
+ /* Set the DMA error callback */
+ hirda->hdmarx->XferErrorCallback = IRDA_DMAError;
+
+ /* Set the DMA abort callback */
+ hirda->hdmarx->XferAbortCallback = NULL;
+
+ /* Enable the DMA Stream */
+ tmp = (uint32_t*)&pData;
+ HAL_DMA_Start_IT(hirda->hdmarx, (uint32_t)&hirda->Instance->DR, *(uint32_t*)tmp, Size);
+
+ /* Clear the Overrun flag just before enabling the DMA Rx request: can be mandatory for the second transfer */
+ __HAL_IRDA_CLEAR_OREFLAG(hirda);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ /* Enable the IRDA Parity Error Interrupt */
+ SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
+
+ /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Enable the DMA transfer for the receiver request by setting the DMAR bit
+ in the USART CR3 register */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Pauses the DMA Transfer.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_DMAPause(IRDA_HandleTypeDef *hirda)
+{
+ uint32_t dmarequest = 0x00U;
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT);
+ if((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest)
+ {
+ /* Disable the IRDA DMA Tx request */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+ }
+
+ dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR);
+ if((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest)
+ {
+ /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the IRDA DMA Rx request */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Resumes the DMA Transfer.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_DMAResume(IRDA_HandleTypeDef *hirda)
+{
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ if(hirda->gState == HAL_IRDA_STATE_BUSY_TX)
+ {
+ /* Enable the IRDA DMA Tx request */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+ }
+ if(hirda->RxState == HAL_IRDA_STATE_BUSY_RX)
+ {
+ /* Clear the Overrun flag before resuming the Rx transfer */
+ __HAL_IRDA_CLEAR_OREFLAG(hirda);
+
+ /* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */
+ SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
+ SET_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Enable the IRDA DMA Rx request */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Stops the DMA Transfer.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_DMAStop(IRDA_HandleTypeDef *hirda)
+{
+ uint32_t dmarequest = 0x00U;
+ /* The Lock is not implemented on this API to allow the user application
+ to call the HAL IRDA API under callbacks HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback():
+ when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
+ and the correspond call back is executed HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback()
+ */
+
+ /* Stop IRDA DMA Tx request if ongoing */
+ dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT);
+ if((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest)
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the IRDA DMA Tx channel */
+ if(hirda->hdmatx != NULL)
+ {
+ HAL_DMA_Abort(hirda->hdmatx);
+ }
+ IRDA_EndTxTransfer(hirda);
+ }
+
+ /* Stop IRDA DMA Rx request if ongoing */
+ dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR);
+ if((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest)
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the IRDA DMA Rx channel */
+ if(hirda->hdmarx != NULL)
+ {
+ HAL_DMA_Abort(hirda->hdmarx);
+ }
+ IRDA_EndRxTransfer(hirda);
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing transfers (blocking mode).
+ * @param hirda IRDA handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_IRDA_Abort(IRDA_HandleTypeDef *hirda)
+{
+ /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the IRDA DMA Tx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the IRDA DMA Tx channel : use blocking DMA Abort API (no callback) */
+ if(hirda->hdmatx != NULL)
+ {
+ /* Set the IRDA DMA Abort callback to Null.
+ No call back execution at end of DMA abort procedure */
+ hirda->hdmatx->XferAbortCallback = NULL;
+
+ HAL_DMA_Abort(hirda->hdmatx);
+ }
+ }
+
+ /* Disable the IRDA DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the IRDA DMA Rx channel : use blocking DMA Abort API (no callback) */
+ if(hirda->hdmarx != NULL)
+ {
+ /* Set the IRDA DMA Abort callback to Null.
+ No call back execution at end of DMA abort procedure */
+ hirda->hdmarx->XferAbortCallback = NULL;
+
+ HAL_DMA_Abort(hirda->hdmarx);
+ }
+ }
+
+ /* Reset Tx and Rx transfer counters */
+ hirda->TxXferCount = 0x00U;
+ hirda->RxXferCount = 0x00U;
+
+ /* Reset ErrorCode */
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+
+ /* Restore hirda->RxState and hirda->gState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+ hirda->gState = HAL_IRDA_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing Transmit transfer (blocking mode).
+ * @param hirda IRDA handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_IRDA_AbortTransmit(IRDA_HandleTypeDef *hirda)
+{
+ /* Disable TXEIE and TCIE interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+ /* Disable the IRDA DMA Tx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the IRDA DMA Tx channel : use blocking DMA Abort API (no callback) */
+ if(hirda->hdmatx != NULL)
+ {
+ /* Set the IRDA DMA Abort callback to Null.
+ No call back execution at end of DMA abort procedure */
+ hirda->hdmatx->XferAbortCallback = NULL;
+
+ HAL_DMA_Abort(hirda->hdmatx);
+ }
+ }
+
+ /* Reset Tx transfer counter */
+ hirda->TxXferCount = 0x00U;
+
+ /* Restore hirda->gState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing Receive transfer (blocking mode).
+ * @param hirda IRDA handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_IRDA_AbortReceive(IRDA_HandleTypeDef *hirda)
+{
+ /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the IRDA DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the IRDA DMA Rx channel : use blocking DMA Abort API (no callback) */
+ if(hirda->hdmarx != NULL)
+ {
+ /* Set the IRDA DMA Abort callback to Null.
+ No call back execution at end of DMA abort procedure */
+ hirda->hdmarx->XferAbortCallback = NULL;
+
+ HAL_DMA_Abort(hirda->hdmarx);
+ }
+ }
+
+ /* Reset Rx transfer counter */
+ hirda->RxXferCount = 0x00U;
+
+ /* Restore hirda->RxState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing transfers (Interrupt mode).
+ * @param hirda IRDA handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * - At abort completion, call user abort complete callback
+ * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
+ * considered as completed only when user abort complete callback is executed (not when exiting function).
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_IRDA_Abort_IT(IRDA_HandleTypeDef *hirda)
+{
+ uint32_t AbortCplt = 1U;
+
+ /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* If DMA Tx and/or DMA Rx Handles are associated to IRDA Handle, DMA Abort complete callbacks should be initialised
+ before any call to DMA Abort functions */
+ /* DMA Tx Handle is valid */
+ if(hirda->hdmatx != NULL)
+ {
+ /* Set DMA Abort Complete callback if IRDA DMA Tx request if enabled.
+ Otherwise, set it to NULL */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
+ {
+ hirda->hdmatx->XferAbortCallback = IRDA_DMATxAbortCallback;
+ }
+ else
+ {
+ hirda->hdmatx->XferAbortCallback = NULL;
+ }
+ }
+ /* DMA Rx Handle is valid */
+ if(hirda->hdmarx != NULL)
+ {
+ /* Set DMA Abort Complete callback if IRDA DMA Rx request if enabled.
+ Otherwise, set it to NULL */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
+ {
+ hirda->hdmarx->XferAbortCallback = IRDA_DMARxAbortCallback;
+ }
+ else
+ {
+ hirda->hdmarx->XferAbortCallback = NULL;
+ }
+ }
+
+ /* Disable the IRDA DMA Tx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
+ {
+ /* Disable DMA Tx at IRDA level */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the IRDA DMA Tx channel : use non blocking DMA Abort API (callback) */
+ if(hirda->hdmatx != NULL)
+ {
+ /* IRDA Tx DMA Abort callback has already been initialised :
+ will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */
+
+ /* Abort DMA TX */
+ if(HAL_DMA_Abort_IT(hirda->hdmatx) != HAL_OK)
+ {
+ hirda->hdmatx->XferAbortCallback = NULL;
+ }
+ else
+ {
+ AbortCplt = 0x00U;
+ }
+ }
+ }
+
+ /* Disable the IRDA DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the IRDA DMA Rx channel : use non blocking DMA Abort API (callback) */
+ if(hirda->hdmarx != NULL)
+ {
+ /* IRDA Rx DMA Abort callback has already been initialised :
+ will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */
+
+ /* Abort DMA RX */
+ if(HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK)
+ {
+ hirda->hdmarx->XferAbortCallback = NULL;
+ AbortCplt = 0x01U;
+ }
+ else
+ {
+ AbortCplt = 0x00U;
+ }
+ }
+ }
+
+ /* if no DMA abort complete callback execution is required => call user Abort Complete callback */
+ if(AbortCplt == 0x01U)
+ {
+ /* Reset Tx and Rx transfer counters */
+ hirda->TxXferCount = 0x00U;
+ hirda->RxXferCount = 0x00U;
+
+ /* Reset ErrorCode */
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+
+ /* Restore hirda->gState and hirda->RxState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_IRDA_AbortCpltCallback(hirda);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing Transmit transfer (Interrupt mode).
+ * @param hirda IRDA handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * - At abort completion, call user abort complete callback
+ * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
+ * considered as completed only when user abort complete callback is executed (not when exiting function).
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_IRDA_AbortTransmit_IT(IRDA_HandleTypeDef *hirda)
+{
+ /* Disable TXEIE and TCIE interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+ /* Disable the IRDA DMA Tx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the IRDA DMA Tx channel : use blocking DMA Abort API (no callback) */
+ if(hirda->hdmatx != NULL)
+ {
+ /* Set the IRDA DMA Abort callback :
+ will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */
+ hirda->hdmatx->XferAbortCallback = IRDA_DMATxOnlyAbortCallback;
+
+ /* Abort DMA TX */
+ if(HAL_DMA_Abort_IT(hirda->hdmatx) != HAL_OK)
+ {
+ /* Call Directly hirda->hdmatx->XferAbortCallback function in case of error */
+ hirda->hdmatx->XferAbortCallback(hirda->hdmatx);
+ }
+ }
+ else
+ {
+ /* Reset Tx transfer counter */
+ hirda->TxXferCount = 0x00U;
+
+ /* Restore hirda->gState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_IRDA_AbortTransmitCpltCallback(hirda);
+ }
+ }
+ else
+ {
+ /* Reset Tx transfer counter */
+ hirda->TxXferCount = 0x00U;
+
+ /* Restore hirda->gState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_IRDA_AbortTransmitCpltCallback(hirda);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing Receive transfer (Interrupt mode).
+ * @param hirda IRDA handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * - At abort completion, call user abort complete callback
+ * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
+ * considered as completed only when user abort complete callback is executed (not when exiting function).
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_IRDA_AbortReceive_IT(IRDA_HandleTypeDef *hirda)
+{
+ /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the IRDA DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the IRDA DMA Rx channel : use blocking DMA Abort API (no callback) */
+ if(hirda->hdmarx != NULL)
+ {
+ /* Set the IRDA DMA Abort callback :
+ will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */
+ hirda->hdmarx->XferAbortCallback = IRDA_DMARxOnlyAbortCallback;
+
+ /* Abort DMA RX */
+ if(HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK)
+ {
+ /* Call Directly hirda->hdmarx->XferAbortCallback function in case of error */
+ hirda->hdmarx->XferAbortCallback(hirda->hdmarx);
+ }
+ }
+ else
+ {
+ /* Reset Rx transfer counter */
+ hirda->RxXferCount = 0x00U;
+
+ /* Restore hirda->RxState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_IRDA_AbortReceiveCpltCallback(hirda);
+ }
+ }
+ else
+ {
+ /* Reset Rx transfer counter */
+ hirda->RxXferCount = 0x00U;
+
+ /* Restore hirda->RxState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_IRDA_AbortReceiveCpltCallback(hirda);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief This function handles IRDA interrupt request.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval None
+ */
+void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda)
+{
+ uint32_t isrflags = READ_REG(hirda->Instance->SR);
+ uint32_t cr1its = READ_REG(hirda->Instance->CR1);
+ uint32_t cr3its = READ_REG(hirda->Instance->CR3);
+ uint32_t errorflags = 0x00U;
+ uint32_t dmarequest = 0x00U;
+
+ /* If no error occurs */
+ errorflags = (isrflags & (uint32_t)(USART_SR_PE | USART_SR_FE | USART_SR_ORE | USART_SR_NE));
+ if(errorflags == RESET)
+ {
+ /* IRDA in mode Receiver -----------------------------------------------*/
+ if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
+ {
+ IRDA_Receive_IT(hirda);
+ return;
+ }
+ }
+
+ /* If some errors occur */
+ if((errorflags != RESET) && (((cr3its & USART_CR3_EIE) != RESET) || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != RESET)))
+ {
+ /* IRDA parity error interrupt occurred -------------------------------*/
+ if(((isrflags & USART_SR_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET))
+ {
+ hirda->ErrorCode |= HAL_IRDA_ERROR_PE;
+ }
+
+ /* IRDA noise error interrupt occurred --------------------------------*/
+ if(((isrflags & USART_SR_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
+ {
+ hirda->ErrorCode |= HAL_IRDA_ERROR_NE;
+ }
+
+ /* IRDA frame error interrupt occurred --------------------------------*/
+ if(((isrflags & USART_SR_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
+ {
+ hirda->ErrorCode |= HAL_IRDA_ERROR_FE;
+ }
+
+ /* IRDA Over-Run interrupt occurred -----------------------------------*/
+ if(((isrflags & USART_SR_ORE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
+ {
+ hirda->ErrorCode |= HAL_IRDA_ERROR_ORE;
+ }
+ /* Call IRDA Error Call back function if need be -----------------------*/
+ if(hirda->ErrorCode != HAL_IRDA_ERROR_NONE)
+ {
+ /* IRDA in mode Receiver ---------------------------------------------*/
+ if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
+ {
+ IRDA_Receive_IT(hirda);
+ }
+
+ dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR);
+ /* If Overrun error occurs, or if any error occurs in DMA mode reception,
+ consider error as blocking */
+ if(((hirda->ErrorCode & HAL_IRDA_ERROR_ORE) != RESET) || dmarequest)
+ {
+ /* Blocking error : transfer is aborted
+ Set the IRDA state ready to be able to start again the process,
+ Disable Rx Interrupts, and disable Rx DMA request, if ongoing */
+ IRDA_EndRxTransfer(hirda);
+
+ /* Disable the IRDA DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the IRDA DMA Rx channel */
+ if(hirda->hdmarx != NULL)
+ {
+ /* Set the IRDA DMA Abort callback :
+ will lead to call HAL_IRDA_ErrorCallback() at end of DMA abort procedure */
+ hirda->hdmarx->XferAbortCallback = IRDA_DMAAbortOnError;
+
+ if(HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK)
+ {
+ /* Call Directly XferAbortCallback function in case of error */
+ hirda->hdmarx->XferAbortCallback(hirda->hdmarx);
+ }
+ }
+ else
+ {
+ /* Call user error callback */
+ HAL_IRDA_ErrorCallback(hirda);
+ }
+ }
+ else
+ {
+ /* Call user error callback */
+ HAL_IRDA_ErrorCallback(hirda);
+ }
+ }
+ else
+ {
+ /* Non Blocking error : transfer could go on.
+ Error is notified to user through user error callback */
+ HAL_IRDA_ErrorCallback(hirda);
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ }
+ }
+ return;
+ } /* End if some error occurs */
+
+ /* IRDA in mode Transmitter ------------------------------------------------*/
+ if(((isrflags & USART_SR_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET))
+ {
+ IRDA_Transmit_IT(hirda);
+ return;
+ }
+
+ /* IRDA in mode Transmitter end --------------------------------------------*/
+ if(((isrflags & USART_SR_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET))
+ {
+ IRDA_EndTransmit_IT(hirda);
+ return;
+ }
+}
+
+/**
+ * @brief End ongoing Tx transfer on IRDA peripheral (following error detection or Transmit completion).
+ * @param hirda IRDA handle.
+ * @retval None
+ */
+static void IRDA_EndTxTransfer(IRDA_HandleTypeDef *hirda)
+{
+ /* Disable TXEIE and TCIE interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+ /* At end of Tx process, restore hirda->gState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+}
+
+/**
+ * @brief End ongoing Rx transfer on IRDA peripheral (following error detection or Reception completion).
+ * @param hirda IRDA handle.
+ * @retval None
+ */
+static void IRDA_EndRxTransfer(IRDA_HandleTypeDef *hirda)
+{
+ /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* At end of Rx process, restore hirda->RxState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+}
+
+/**
+ * @brief DMA IRDA communication abort callback, when initiated by HAL services on Error
+ * (To be called at end of DMA Abort procedure following error occurrence).
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void IRDA_DMAAbortOnError(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ hirda->RxXferCount = 0x00U;
+ hirda->TxXferCount = 0x00U;
+
+ HAL_IRDA_ErrorCallback(hirda);
+}
+
+/**
+ * @brief DMA IRDA Tx communication abort callback, when initiated by user
+ * (To be called at end of DMA Tx Abort procedure following user abort request).
+ * @note When this callback is executed, User Abort complete call back is called only if no
+ * Abort still ongoing for Rx DMA Handle.
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void IRDA_DMATxAbortCallback(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ hirda->hdmatx->XferAbortCallback = NULL;
+
+ /* Check if an Abort process is still ongoing */
+ if(hirda->hdmarx != NULL)
+ {
+ if(hirda->hdmarx->XferAbortCallback != NULL)
+ {
+ return;
+ }
+ }
+
+ /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
+ hirda->TxXferCount = 0x00U;
+ hirda->RxXferCount = 0x00U;
+
+ /* Reset ErrorCode */
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+
+ /* Restore hirda->gState and hirda->RxState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ /* Call user Abort complete callback */
+ HAL_IRDA_AbortCpltCallback(hirda);
+}
+
+/**
+ * @brief DMA IRDA Rx communication abort callback, when initiated by user
+ * (To be called at end of DMA Rx Abort procedure following user abort request).
+ * @note When this callback is executed, User Abort complete call back is called only if no
+ * Abort still ongoing for Tx DMA Handle.
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void IRDA_DMARxAbortCallback(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ hirda->hdmarx->XferAbortCallback = NULL;
+
+ /* Check if an Abort process is still ongoing */
+ if(hirda->hdmatx != NULL)
+ {
+ if(hirda->hdmatx->XferAbortCallback != NULL)
+ {
+ return;
+ }
+ }
+
+ /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
+ hirda->TxXferCount = 0x00U;
+ hirda->RxXferCount = 0x00U;
+
+ /* Reset ErrorCode */
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+
+ /* Restore hirda->gState and hirda->RxState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ /* Call user Abort complete callback */
+ HAL_IRDA_AbortCpltCallback(hirda);
+}
+
+/**
+ * @brief DMA IRDA Tx communication abort callback, when initiated by user by a call to
+ * HAL_IRDA_AbortTransmit_IT API (Abort only Tx transfer)
+ * (This callback is executed at end of DMA Tx Abort procedure following user abort request,
+ * and leads to user Tx Abort Complete callback execution).
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void IRDA_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ hirda->TxXferCount = 0x00U;
+
+ /* Restore hirda->gState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+
+ /* Call user Abort complete callback */
+ HAL_IRDA_AbortTransmitCpltCallback(hirda);
+}
+
+/**
+ * @brief DMA IRDA Rx communication abort callback, when initiated by user by a call to
+ * HAL_IRDA_AbortReceive_IT API (Abort only Rx transfer)
+ * (This callback is executed at end of DMA Rx Abort procedure following user abort request,
+ * and leads to user Rx Abort Complete callback execution).
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void IRDA_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ hirda->RxXferCount = 0x00U;
+
+ /* Restore hirda->RxState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ /* Call user Abort complete callback */
+ HAL_IRDA_AbortReceiveCpltCallback(hirda);
+}
+
+/**
+ * @brief Tx Transfer complete callbacks.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval None
+ */
+__weak void HAL_IRDA_TxCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_IRDA_TxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Tx Half Transfer completed callbacks.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified USART module.
+ * @retval None
+ */
+__weak void HAL_IRDA_TxHalfCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+ /* NOTE: This function Should not be modified, when the callback is needed,
+ the HAL_IRDA_TxHalfCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Transfer complete callbacks.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval None
+ */
+__weak void HAL_IRDA_RxCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_IRDA_RxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Half Transfer complete callbacks.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval None
+ */
+__weak void HAL_IRDA_RxHalfCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_IRDA_RxHalfCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief IRDA error callbacks.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval None
+ */
+__weak void HAL_IRDA_ErrorCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_IRDA_ErrorCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief IRDA Abort Complete callback.
+ * @param hirda IRDA handle.
+ * @retval None
+ */
+__weak void HAL_IRDA_AbortCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_AbortCpltCallback can be implemented in the user file.
+ */
+}
+
+/**
+ * @brief IRDA Abort Transmit Complete callback.
+ * @param hirda IRDA handle.
+ * @retval None
+ */
+__weak void HAL_IRDA_AbortTransmitCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_AbortTransmitCpltCallback can be implemented in the user file.
+ */
+}
+
+/**
+ * @brief IRDA Abort ReceiveComplete callback.
+ * @param hirda IRDA handle.
+ * @retval None
+ */
+__weak void HAL_IRDA_AbortReceiveCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hirda);
+
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_AbortReceiveCpltCallback can be implemented in the user file.
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup IRDA_Exported_Functions_Group3 Peripheral State and Errors functions
+ * @brief IRDA State and Errors functions
+ *
+@verbatim
+ ==============================================================================
+ ##### Peripheral State and Errors functions #####
+ ==============================================================================
+ [..]
+ This subsection provides a set of functions allowing to return the State of IrDA
+ communication process and also return Peripheral Errors occurred during communication process
+ (+) HAL_IRDA_GetState() API can be helpful to check in run-time the state of the IrDA peripheral.
+ (+) HAL_IRDA_GetError() check in run-time errors that could be occurred during communication.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Returns the IRDA state.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL state
+ */
+HAL_IRDA_StateTypeDef HAL_IRDA_GetState(IRDA_HandleTypeDef *hirda)
+{
+ uint32_t temp1 = 0x00U, temp2 = 0x00U;
+ temp1 = hirda->gState;
+ temp2 = hirda->RxState;
+
+ return (HAL_IRDA_StateTypeDef)(temp1 | temp2);
+}
+
+/**
+ * @brief Return the IARDA error code
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA.
+ * @retval IRDA Error Code
+ */
+uint32_t HAL_IRDA_GetError(IRDA_HandleTypeDef *hirda)
+{
+ return hirda->ErrorCode;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @brief DMA IRDA transmit process complete callback.
+ * @param hdma DMA handle
+ * @retval None
+ */
+static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* DMA Normal mode */
+ if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U)
+ {
+ hirda->TxXferCount = 0U;
+
+ /* Disable the DMA transfer for transmit request by setting the DMAT bit
+ in the IRDA CR3 register */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+
+ /* Enable the IRDA Transmit Complete Interrupt */
+ SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE);
+ }
+ /* DMA Circular mode */
+ else
+ {
+ HAL_IRDA_TxCpltCallback(hirda);
+ }
+}
+
+/**
+ * @brief DMA IRDA receive process half complete callback
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ HAL_IRDA_TxHalfCpltCallback(hirda);
+}
+
+/**
+ * @brief DMA IRDA receive process complete callback.
+ * @param hdma DMA handle
+ * @retval None
+ */
+static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* DMA Normal mode */
+ if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U)
+ {
+ hirda->RxXferCount = 0U;
+
+ /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the DMA transfer for the receiver request by setting the DMAR bit
+ in the IRDA CR3 register */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ /* At end of Rx process, restore hirda->RxState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+ }
+
+ HAL_IRDA_RxCpltCallback(hirda);
+}
+
+/**
+ * @brief DMA IRDA receive process half complete callback
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ HAL_IRDA_RxHalfCpltCallback(hirda);
+}
+
+/**
+ * @brief DMA IRDA communication error callback.
+ * @param hdma DMA handle
+ * @retval None
+ */
+static void IRDA_DMAError(DMA_HandleTypeDef *hdma)
+{
+ uint32_t dmarequest = 0x00U;
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ /* Stop IRDA DMA Tx request if ongoing */
+ dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT);
+ if((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest)
+ {
+ hirda->TxXferCount = 0U;
+ IRDA_EndTxTransfer(hirda);
+ }
+
+ /* Stop IRDA DMA Rx request if ongoing */
+ dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR);
+ if((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest)
+ {
+ hirda->RxXferCount = 0U;
+ IRDA_EndRxTransfer(hirda);
+ }
+
+ hirda->ErrorCode |= HAL_IRDA_ERROR_DMA;
+
+ HAL_IRDA_ErrorCallback(hirda);
+}
+
+/**
+ * @brief This function handles IRDA Communication Timeout.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @param Flag specifies the IRDA flag to check.
+ * @param Status The new Flag status (SET or RESET).
+ * @param Tickstart Tick start value
+ * @param Timeout Timeout duration
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout)
+{
+ /* Wait until flag is set */
+ while((__HAL_IRDA_GET_FLAG(hirda, Flag) ? SET : RESET) == Status)
+ {
+ /* Check for the Timeout */
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if((Timeout == 0U)||((HAL_GetTick() - Tickstart ) > Timeout))
+ {
+ /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+ CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE));
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ hirda->gState = HAL_IRDA_STATE_READY;
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ return HAL_OK;
+}
+
+ /**
+ * @brief Send an amount of data in non blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda)
+{
+ uint16_t* tmp;
+
+ /* Check that a Tx process is ongoing */
+ if(hirda->gState == HAL_IRDA_STATE_BUSY_TX)
+ {
+ if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
+ {
+ tmp = (uint16_t*) hirda->pTxBuffPtr;
+ hirda->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ hirda->pTxBuffPtr += 2U;
+ }
+ else
+ {
+ hirda->pTxBuffPtr += 1U;
+ }
+ }
+ else
+ {
+ hirda->Instance->DR = (uint8_t)(*hirda->pTxBuffPtr++ & (uint8_t)0x00FF);
+ }
+
+ if(--hirda->TxXferCount == 0U)
+ {
+ /* Disable the IRDA Transmit Data Register Empty Interrupt */
+ CLEAR_BIT(hirda->Instance->CR1, USART_CR1_TXEIE);
+
+ /* Enable the IRDA Transmit Complete Interrupt */
+ SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE);
+ }
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Wraps up transmission in non blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda)
+{
+ /* Disable the IRDA Transmit Complete Interrupt */
+ CLEAR_BIT(hirda->Instance->CR1, USART_CR1_TCIE);
+
+ /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Tx process is ended, restore hirda->gState to Ready */
+ hirda->gState = HAL_IRDA_STATE_READY;
+
+ HAL_IRDA_TxCpltCallback(hirda);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Receives an amount of data in non blocking mode.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda)
+{
+ uint16_t* tmp;
+ uint16_t uhdata;
+
+ /* Check that a Rx process is ongoing */
+ if(hirda->RxState == HAL_IRDA_STATE_BUSY_RX)
+ {
+ uhdata = (uint16_t) READ_REG(hirda->Instance->DR);
+ if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
+ {
+ tmp = (uint16_t*) hirda->pRxBuffPtr;
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ *tmp = (uint16_t)(uhdata & (uint16_t)0x01FF);
+ hirda->pRxBuffPtr += 2U;
+ }
+ else
+ {
+ *tmp = (uint16_t)(uhdata & (uint16_t)0x00FF);
+ hirda->pRxBuffPtr += 1U;
+ }
+ }
+ else
+ {
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ *hirda->pRxBuffPtr++ = (uint8_t)(uhdata & (uint8_t)0x00FF);
+ }
+ else
+ {
+ *hirda->pRxBuffPtr++ = (uint8_t)(uhdata & (uint8_t)0x007F);
+ }
+ }
+
+ if(--hirda->RxXferCount == 0U)
+ {
+ /* Disable the IRDA Data Register not empty Interrupt */
+ CLEAR_BIT(hirda->Instance->CR1, USART_CR1_RXNEIE);
+
+ /* Disable the IRDA Parity Error Interrupt */
+ CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE);
+
+ /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE);
+
+ /* Rx process is completed, restore hirda->RxState to Ready */
+ hirda->RxState = HAL_IRDA_STATE_READY;
+
+ HAL_IRDA_RxCpltCallback(hirda);
+
+ return HAL_OK;
+ }
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Configures the IRDA peripheral.
+ * @param hirda pointer to a IRDA_HandleTypeDef structure that contains
+ * the configuration information for the specified IRDA module.
+ * @retval None
+ */
+static void IRDA_SetConfig(IRDA_HandleTypeDef *hirda)
+{
+ /* Check the parameters */
+ assert_param(IS_IRDA_INSTANCE(hirda->Instance));
+ assert_param(IS_IRDA_BAUDRATE(hirda->Init.BaudRate));
+ assert_param(IS_IRDA_WORD_LENGTH(hirda->Init.WordLength));
+ assert_param(IS_IRDA_PARITY(hirda->Init.Parity));
+ assert_param(IS_IRDA_MODE(hirda->Init.Mode));
+
+ /*-------------------------- IRDA CR2 Configuration ------------------------*/
+ /* Clear STOP[13:12] bits */
+ CLEAR_BIT(hirda->Instance->CR2, USART_CR2_STOP);
+
+ /*-------------------------- USART CR1 Configuration -----------------------*/
+ /* Clear M, PCE, PS, TE and RE bits */
+ CLEAR_BIT(hirda->Instance->CR1, USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE);
+
+ /* Configure the USART Word Length, Parity and mode:
+ Set the M bits according to hirda->Init.WordLength value
+ Set PCE and PS bits according to hirda->Init.Parity value
+ Set TE and RE bits according to hirda->Init.Mode value */
+ /* Write to USART CR1 */
+ SET_BIT(hirda->Instance->CR1, (uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode);
+
+ /*-------------------------- USART CR3 Configuration -----------------------*/
+ /* Clear CTSE and RTSE bits */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_RTSE | USART_CR3_CTSE);
+
+ /*-------------------------- USART BRR Configuration -----------------------*/
+#if defined(USART6)
+ if((hirda->Instance == USART1) || (hirda->Instance == USART6))
+ {
+ SET_BIT(hirda->Instance->BRR, IRDA_BRR(HAL_RCC_GetPCLK2Freq(), hirda->Init.BaudRate));
+ }
+#else
+ if(hirda->Instance == USART1)
+ {
+ SET_BIT(hirda->Instance->BRR, IRDA_BRR(HAL_RCC_GetPCLK2Freq(), hirda->Init.BaudRate));
+ }
+#endif /* USART6 */
+ else
+ {
+ SET_BIT(hirda->Instance->BRR, IRDA_BRR(HAL_RCC_GetPCLK1Freq(), hirda->Init.BaudRate));
+ }
+}
+
+/**
+ * @}
+ */
+
+#endif /* HAL_IRDA_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/