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Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_F334C8/stm32f3xx_hal_irda.c
- Revision:
- 381:5460fc57b6e4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_DISCO_F334C8/stm32f3xx_hal_irda.c Mon Nov 03 10:30:07 2014 +0000
@@ -0,0 +1,1326 @@
+/**
+ ******************************************************************************
+ * @file stm32f3xx_hal_irda.c
+ * @author MCD Application Team
+ * @version V1.1.0
+ * @date 12-Sept-2014
+ * @brief IRDA HAL module driver.
+ *
+ * This file provides firmware functions to manage the following
+ * functionalities of the IrDA (Infrared Data Association) Peripheral
+ * (IRDA)
+ * + Initialization and de-initialization functions
+ * + IO operation functions
+ * + Peripheral Control functions
+ *
+ *
+ @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
+ in setting the associated USART or UART in IRDA mode:
+ (##) Enable the USARTx/UARTx interface clock.
+ (##) USARTx/UARTx pins configuration:
+ (+) Enable the clock for the USARTx/UARTx GPIOs.
+ (+) Configure these USARTx/UARTx 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/UARTx interrupt priority.
+ (+) Enable the NVIC IRDA IRQ handle.
+ (@) 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.
+ (##) 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 initilalized 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 and Parity and Mode(Receiver/Transmitter),
+ the normal or low power mode and the clock prescaler in the hirda Init structure.
+
+ (#) Initialize the IRDA registers by calling
+ the HAL_IRDA_Init() API.
+
+ (@) This API (HAL_IRDA_Init()) configures also the low level Hardware (GPIO, CLOCK, CORTEX...etc)
+ by calling the customized HAL_IRDA_MspInit() API.
+
+ @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 "stm32f3xx_hal.h"
+
+/** @addtogroup STM32F3xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup IRDA IRDA HAL module driver
+ * @brief HAL IRDA module driver
+ * @{
+ */
+#ifdef HAL_IRDA_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup IRDA_Private_Constants IRDA Private Constants
+ * @{
+ */
+#define TEACK_REACK_TIMEOUT 1000
+#define IRDA_TXDMA_TIMEOUTVALUE 22000
+#define IRDA_TIMEOUT_VALUE 22000
+#define IRDA_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE \
+ | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE))
+/**
+ * @}
+ */
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @defgroup IRDA_Private_Functions IRDA Private Functions
+ * @{
+ */
+static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma);
+static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
+static void IRDA_DMAError(DMA_HandleTypeDef *hdma);
+static HAL_StatusTypeDef IRDA_SetConfig(IRDA_HandleTypeDef *hirda);
+static HAL_StatusTypeDef IRDA_CheckIdleState(IRDA_HandleTypeDef *hirda);
+static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
+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);
+/**
+ * @}
+ */
+/* Exported functions ---------------------------------------------------------*/
+
+/** @defgroup IRDA_Exported_Functions IRDA Exported Functions
+ * @{
+ */
+
+/** @defgroup IRDA_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 USARTx
+ in asynchronous IRDA mode.
+ (+) For the asynchronous mode only these parameters can be configured:
+ (++) Baud Rate
+ (++) Word Length
+ (++) 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)
+ or by the M1 and M0 bits (7-bit, 8-bit or 9-bit),
+ the possible IRDA frame formats are as listed in the following table:
+ +---------------------------------------------------------------+
+ | M bit | PCE bit | IRDA frame |
+ |-----------|-----------|---------------------------------------|
+ | 0 | 0 | | SB | 8-bit data | STB | |
+ |-----------|-----------|---------------------------------------|
+ | 0 | 1 | | SB | 7-bit data | PB | STB | |
+ |-----------|-----------|---------------------------------------|
+ | 1 | 0 | | SB | 9-bit data | STB | |
+ |-----------|-----------|---------------------------------------|
+ | 1 | 1 | | SB | 8-bit data | PB | STB | |
+ +---------------------------------------------------------------+
+ | M1M0 bits | PCE bit | IRDA frame |
+ |-----------------------|---------------------------------------|
+ | 10 | 0 | | SB | 7-bit data | STB | |
+ |-----------|-----------|---------------------------------------|
+ | 10 | 1 | | SB | 6-bit data | PB | STB | |
+ +---------------------------------------------------------------+
+
+ (++) Power mode
+ (++) Prescaler setting
+ (++) Receiver/transmitter modes
+
+ [..]
+ The HAL_IRDA_Init() API follows the USART asynchronous 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 creates the associated handle .
+ * @param hirda: IRDA handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda)
+{
+ /* Check the IRDA handle allocation */
+ if(hirda == HAL_NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the USART/UART associated to the IRDA handle */
+ assert_param(IS_IRDA_INSTANCE(hirda->Instance));
+
+ if(hirda->State == HAL_IRDA_STATE_RESET)
+ {
+ /* Init the low level hardware : GPIO, CLOCK */
+ HAL_IRDA_MspInit(hirda);
+ }
+
+ hirda->State = HAL_IRDA_STATE_BUSY;
+
+ /* Disable the Peripheral to update the configuration registers */
+ __HAL_IRDA_DISABLE(hirda);
+
+ /* Set the IRDA Communication parameters */
+ if (IRDA_SetConfig(hirda) == HAL_ERROR)
+ {
+ return HAL_ERROR;
+ }
+
+ /* 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.*/
+ hirda->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN | USART_CR2_STOP);
+ hirda->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL);
+
+ /* set the UART/USART in IRDA mode */
+ hirda->Instance->CR3 |= USART_CR3_IREN;
+
+ /* Enable the Peripheral */
+ __HAL_IRDA_ENABLE(hirda);
+
+ /* TEACK and/or REACK to check before moving hirda->State to Ready */
+ return (IRDA_CheckIdleState(hirda));
+}
+
+/**
+ * @brief DeInitializes the IRDA peripheral
+ * @param hirda: IRDA handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_DeInit(IRDA_HandleTypeDef *hirda)
+{
+ /* Check the IRDA handle allocation */
+ if(hirda == HAL_NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the USART/UART associated to the IRDA handle */
+ assert_param(IS_IRDA_INSTANCE(hirda->Instance));
+
+ hirda->State = HAL_IRDA_STATE_BUSY;
+
+ /* DeInit the low level hardware */
+ HAL_IRDA_MspDeInit(hirda);
+ /* Disable the Peripheral */
+ __HAL_IRDA_DISABLE(hirda);
+
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ hirda->State = HAL_IRDA_STATE_RESET;
+
+ /* Process Unlock */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief IRDA MSP Init
+ * @param hirda: IRDA handle
+ * @retval None
+ */
+ __weak void HAL_IRDA_MspInit(IRDA_HandleTypeDef *hirda)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_MspInit can be implemented in the user file
+ */
+}
+
+/**
+ * @brief IRDA MSP DeInit
+ * @param hirda: IRDA handle
+ * @retval None
+ */
+ __weak void HAL_IRDA_MspDeInit(IRDA_HandleTypeDef *hirda)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_MspDeInit can be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup IRDA_Exported_Functions_Group2 Input and Output operation functions
+ * @brief IRDA Transmit and Receive functions
+ *
+@verbatim
+ ===============================================================================
+ ##### I/O operation functions #####
+ ===============================================================================
+ This subsection provides a set of functions allowing to manage the IRDA asynchronous
+ data transfers.
+
+ (#) 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 API's 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 respectivelly 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 API's with Interrupt are :
+ (+) HAL_IRDA_Transmit_IT()
+ (+) HAL_IRDA_Receive_IT()
+ (+) HAL_IRDA_IRQHandler()
+ (+) IRDA_Transmit_IT()
+ (+) IRDA_Receive_IT()
+
+ (#) Non-Blocking mode functions with DMA are :
+ (+) HAL_IRDA_Transmit_DMA()
+ (+) HAL_IRDA_Receive_DMA()
+
+ (#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
+ (+) HAL_IRDA_TxCpltCallback()
+ (+) HAL_IRDA_RxCpltCallback()
+ (+) HAL_IRDA_ErrorCallback()
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Send an amount of data in blocking mode
+ * @param hirda: IRDA handle
+ * @param pData: pointer to data buffer
+ * @param Size: amount of data to be sent
+ * @param Timeout: Duration of the timeout
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Transmit(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ uint16_t* tmp;
+
+ if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX))
+ {
+ if((pData == HAL_NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+
+ if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX_RX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX;
+ }
+
+ hirda->TxXferSize = Size;
+ hirda->TxXferCount = Size;
+ while(hirda->TxXferCount > 0)
+ {
+ hirda->TxXferCount--;
+
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE))
+ {
+ tmp = (uint16_t*) pData;
+ hirda->Instance->TDR = (*tmp & (uint16_t)0x01FF);
+ pData +=2;
+ }
+ else
+ {
+ hirda->Instance->TDR = (*pData++ & (uint8_t)0xFF);
+ }
+ }
+
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TC, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_RX;
+ }
+ else
+ {
+ hirda->State = 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: IRDA handle
+ * @param pData: pointer to data buffer
+ * @param Size: amount of data to be received
+ * @param Timeout: Duration of the timeout
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Receive(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ uint16_t* tmp;
+ uint16_t uhMask;
+
+ if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_TX))
+ {
+ if((pData == HAL_NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX_RX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_RX;
+ }
+
+ hirda->RxXferSize = Size;
+ hirda->RxXferCount = Size;
+
+ /* Computation of the mask to apply to the RDR register
+ of the UART associated to the IRDA */
+ __HAL_IRDA_MASK_COMPUTATION(hirda);
+ uhMask = hirda->Mask;
+
+ /* Check data remaining to be received */
+ while(hirda->RxXferCount > 0)
+ {
+ hirda->RxXferCount--;
+
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE))
+ {
+ tmp = (uint16_t*) pData ;
+ *tmp = (uint16_t)(hirda->Instance->RDR & uhMask);
+ pData +=2;
+ }
+ else
+ {
+ *pData++ = (uint8_t)(hirda->Instance->RDR & (uint8_t)uhMask);
+ }
+ }
+
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Send an amount of data in interrupt mode
+ * @param hirda: IRDA handle
+ * @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)
+{
+ if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX))
+ {
+ if((pData == HAL_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;
+ if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX_RX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX;
+ }
+
+ /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_ERR);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ /* Enable the IRDA Transmit Data Register Empty Interrupt */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_TXE);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receive an amount of data in interrupt mode
+ * @param hirda: IRDA handle
+ * @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)
+{
+ if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_TX))
+ {
+ if((pData == HAL_NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ hirda->pRxBuffPtr = pData;
+ hirda->RxXferSize = Size;
+ hirda->RxXferCount = Size;
+
+ /* Computation of the mask to apply to the RDR register
+ of the UART associated to the IRDA */
+ __HAL_IRDA_MASK_COMPUTATION(hirda);
+
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX_RX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_RX;
+ }
+
+ /* Enable the IRDA Parity Error Interrupt */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_PE);
+
+ /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_ERR);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ /* Enable the IRDA Data Register not empty Interrupt */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_RXNE);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Send an amount of data in DMA mode
+ * @param hirda: IRDA handle
+ * @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;
+
+ if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX))
+ {
+ if((pData == HAL_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;
+
+ if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX_RX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX;
+ }
+
+ /* Set the IRDA DMA transfer complete callback */
+ hirda->hdmatx->XferCpltCallback = IRDA_DMATransmitCplt;
+
+ /* Set the DMA error callback */
+ hirda->hdmatx->XferErrorCallback = IRDA_DMAError;
+
+ /* Enable the IRDA transmit DMA channel */
+ tmp = (uint32_t*)&pData;
+ HAL_DMA_Start_IT(hirda->hdmatx, *(uint32_t*)tmp, (uint32_t)&hirda->Instance->TDR, Size);
+
+ /* Enable the DMA transfer for transmit request by setting the DMAT bit
+ in the IRDA CR3 register */
+ hirda->Instance->CR3 |= USART_CR3_DMAT;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receive an amount of data in DMA mode
+ * @param hirda: IRDA handle
+ * @param pData: pointer to data buffer
+ * @param Size: amount of data to be received
+ * @note When the IRDA parity is enabled (PCE = 1), the received data contain
+ * the parity bit (MSB position)
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IRDA_Receive_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
+{
+ uint32_t *tmp;
+
+ if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_TX))
+ {
+ if((pData == HAL_NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hirda);
+
+ hirda->pRxBuffPtr = pData;
+ hirda->RxXferSize = Size;
+
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX_RX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_RX;
+ }
+
+ /* Set the IRDA DMA transfer complete callback */
+ hirda->hdmarx->XferCpltCallback = IRDA_DMAReceiveCplt;
+
+ /* Set the DMA error callback */
+ hirda->hdmarx->XferErrorCallback = IRDA_DMAError;
+
+ /* Enable the DMA channel */
+ tmp = (uint32_t*)&pData;
+ HAL_DMA_Start_IT(hirda->hdmarx, (uint32_t)&hirda->Instance->RDR, *(uint32_t*)tmp, Size);
+
+ /* Enable the DMA transfer for the receiver request by setting the DMAR bit
+ in the IRDA CR3 register */
+ hirda->Instance->CR3 |= USART_CR3_DMAR;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief This function handles IRDA interrupt request.
+ * @param hirda: IRDA handle
+ * @retval None
+ */
+void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda)
+{
+ /* IRDA parity error interrupt occurred -------------------------------------*/
+ if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_PE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_PE) != RESET))
+ {
+ __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_PEF);
+
+ hirda->ErrorCode |= HAL_IRDA_ERROR_PE;
+ /* Set the IRDA state ready to be able to start again the process */
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ /* IRDA frame error interrupt occured --------------------------------------*/
+ if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_FE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR) != RESET))
+ {
+ __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_FEF);
+
+ hirda->ErrorCode |= HAL_IRDA_ERROR_FE;
+ /* Set the IRDA state ready to be able to start again the process */
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ /* IRDA noise error interrupt occured --------------------------------------*/
+ if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_NE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR) != RESET))
+ {
+ __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_NEF);
+
+ hirda->ErrorCode |= HAL_IRDA_ERROR_NE;
+ /* Set the IRDA state ready to be able to start again the process */
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ /* IRDA Over-Run interrupt occured -----------------------------------------*/
+ if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_ORE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR) != RESET))
+ {
+ __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_OREF);
+
+ hirda->ErrorCode |= HAL_IRDA_ERROR_ORE;
+ /* Set the IRDA state ready to be able to start again the process */
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ /* Call IRDA Error Call back function if need be --------------------------*/
+ if(hirda->ErrorCode != HAL_IRDA_ERROR_NONE)
+ {
+ HAL_IRDA_ErrorCallback(hirda);
+ }
+
+ /* IRDA in mode Receiver ---------------------------------------------------*/
+ if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_RXNE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_RXNE) != RESET))
+ {
+ IRDA_Receive_IT(hirda);
+ /* Clear RXNE interrupt flag */
+ __HAL_IRDA_SEND_REQ(hirda, IRDA_RXDATA_FLUSH_REQUEST);
+ }
+
+
+ /* IRDA in mode Transmitter ------------------------------------------------*/
+ if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_TXE) != RESET) &&(__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TXE) != RESET))
+ {
+ IRDA_Transmit_IT(hirda);
+ }
+
+ /* IRDA in mode Transmitter (transmission end) -----------------------------*/
+ if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_TC) != RESET) &&(__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TC) != RESET))
+ {
+ IRDA_EndTransmit_IT(hirda);
+ }
+
+}
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup IRDA_Private_Functions IRDA Private Functions
+ * @{
+ */
+
+/**
+ * @brief DMA IRDA Tx transfer completed callback
+ * @param hdma: DMA handle
+ * @retval None
+ */
+static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ hirda->TxXferCount = 0;
+
+ /* Disable the DMA transfer for transmit request by setting the DMAT bit
+ in the IRDA CR3 register */
+ hirda->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_DMAT);
+
+ /* Wait for IRDA TC Flag */
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TC, RESET, IRDA_TXDMA_TIMEOUTVALUE) != HAL_OK)
+ {
+ /* Timeout Occured */
+ HAL_IRDA_ErrorCallback(hirda);
+ }
+ else
+ {
+ /* No Timeout */
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_RX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+ HAL_IRDA_TxCpltCallback(hirda);
+ }
+}
+
+/**
+ * @brief DMA IRDA Rx Transfer completed callback
+ * @param hdma: DMA handle
+ * @retval None
+ */
+static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ hirda->RxXferCount = 0;
+
+ /* Disable the DMA transfer for the receiver request by setting the DMAR bit
+ in the IRDA CR3 register */
+ hirda->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_DMAR);
+
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX;
+ }
+ else
+ {
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ HAL_IRDA_RxCpltCallback(hirda);
+}
+
+/**
+ * @brief DMA IRDA communication error callback
+ * @param hdma: DMA handle
+ * @retval None
+ */
+static void IRDA_DMAError(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ hirda->RxXferCount = 0;
+ hirda->TxXferCount = 0;
+ hirda->State= HAL_IRDA_STATE_READY;
+ hirda->ErrorCode |= HAL_IRDA_ERROR_DMA;
+ HAL_IRDA_ErrorCallback(hirda);
+}
+/**
+ * @}
+ */
+
+/** @addtogroup IRDA_Exported_Functions IRDA Exported Functions
+ * @{
+ */
+
+/** @addtogroup IRDA_Exported_Functions_Group2 Input and Output operation functions
+ * @{
+ */
+
+/**
+ * @brief Tx Transfer completed callback
+ * @param hirda: irda handle
+ * @retval None
+ */
+ __weak void HAL_IRDA_TxCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_TxCpltCallback can be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Transfer completed callback
+ * @param hirda: irda handle
+ * @retval None
+ */
+__weak void HAL_IRDA_RxCpltCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_TxCpltCallback can be implemented in the user file
+ */
+}
+
+/**
+ * @brief IRDA error callback
+ * @param hirda: IRDA handle
+ * @retval None
+ */
+ __weak void HAL_IRDA_ErrorCallback(IRDA_HandleTypeDef *hirda)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_ErrorCallback can be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup IRDA_Private_Functions IRDA Private Functions
+ * @{
+ */
+
+/**
+ * @brief Receive an amount of data in non blocking mode.
+ * Function called under interruption only, once
+ * interruptions have been enabled by HAL_IRDA_Transmit_IT()
+ * @param hirda: IRDA handle
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda)
+{
+ uint16_t* tmp;
+
+ if((hirda->State == HAL_IRDA_STATE_BUSY_TX) || (hirda->State == HAL_IRDA_STATE_BUSY_TX_RX))
+ {
+
+ if(hirda->TxXferCount == 0)
+ {
+ /* Disable the IRDA Transmit Data Register Empty Interrupt */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TXE);
+
+ /* Enable the IRDA Transmit Complete Interrupt */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_TC);
+
+ return HAL_OK;
+ }
+ else
+ {
+ if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE))
+ {
+ tmp = (uint16_t*) hirda->pTxBuffPtr;
+ hirda->Instance->TDR = (*tmp & (uint16_t)0x01FF);
+ hirda->pTxBuffPtr += 2;
+ }
+ else
+ {
+ hirda->Instance->TDR = (uint8_t)(*hirda->pTxBuffPtr++ & (uint8_t)0xFF);
+ }
+ hirda->TxXferCount--;
+
+ 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 */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TC);
+
+ /* Check if a receive process is ongoing or not */
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_RX;
+ }
+ else
+ {
+ /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR);
+
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ HAL_IRDA_TxCpltCallback(hirda);
+
+ return HAL_OK;
+}
+
+
+/**
+ * @brief Receive an amount of data in non blocking mode.
+ * Function called under interruption only, once
+ * interruptions have been enabled by HAL_IRDA_Receive_IT()
+ * @param hirda: IRDA handle
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda)
+{
+ uint16_t* tmp;
+ uint16_t uhMask = hirda->Mask;
+
+ if ((hirda->State == HAL_IRDA_STATE_BUSY_RX) || (hirda->State == HAL_IRDA_STATE_BUSY_TX_RX))
+ {
+
+ if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE))
+ {
+ tmp = (uint16_t*) hirda->pRxBuffPtr ;
+ *tmp = (uint16_t)(hirda->Instance->RDR & uhMask);
+ hirda->pRxBuffPtr +=2;
+ }
+ else
+ {
+ *hirda->pRxBuffPtr++ = (uint8_t)(hirda->Instance->RDR & (uint8_t)uhMask);
+ }
+
+ if(--hirda->RxXferCount == 0)
+ {
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_RXNE);
+
+ if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+ {
+ hirda->State = HAL_IRDA_STATE_BUSY_TX;
+ }
+ else
+ {
+ /* Disable the IRDA Parity Error Interrupt */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_PE);
+
+ /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR);
+
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ HAL_IRDA_RxCpltCallback(hirda);
+
+ return HAL_OK;
+ }
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @}
+ */
+
+/** @addtogroup IRDA_Exported_Functions IRDA Exported Functions
+ * @{
+ */
+
+/** @defgroup IRDA_Exported_Functions_Group3 Peripheral State and Errors functions
+ * @brief IRDA control functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Peripheral State and Error functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the IRDA.
+ (+) HAL_IRDA_GetState() API can be helpful to check in run-time the state of the IRDA peripheral.
+ (+) IRDA_SetConfig() API is used to configure the IRDA communications parameters.
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief return the IRDA state
+ * @param hirda: irda handle
+ * @retval HAL state
+ */
+HAL_IRDA_StateTypeDef HAL_IRDA_GetState(IRDA_HandleTypeDef *hirda)
+{
+ return hirda->State;
+}
+
+/**
+* @brief Return the IRDA 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;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup IRDA_Private_Functions IRDA Private Functions
+ * @{
+ */
+
+/**
+ * @brief Configure the IRDA peripheral
+ * @param hirda: irda handle
+ * @retval None
+ */
+static HAL_StatusTypeDef IRDA_SetConfig(IRDA_HandleTypeDef *hirda)
+{
+ uint32_t tmpreg = 0x00000000;
+ IRDA_ClockSourceTypeDef clocksource = IRDA_CLOCKSOURCE_UNDEFINED;
+ HAL_StatusTypeDef ret = HAL_OK;
+
+ /* Check the communication parameters */
+ 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_TX_RX_MODE(hirda->Init.Mode));
+ assert_param(IS_IRDA_PRESCALER(hirda->Init.Prescaler));
+ assert_param(IS_IRDA_POWERMODE(hirda->Init.PowerMode));
+
+ /*-------------------------- USART CR1 Configuration -----------------------*/
+ /* Configure the IRDA Word Length, Parity and transfer 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 */
+ tmpreg = (uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode ;
+
+ MODIFY_REG(hirda->Instance->CR1, IRDA_CR1_FIELDS, tmpreg);
+
+ /*-------------------------- USART CR3 Configuration -----------------------*/
+ MODIFY_REG(hirda->Instance->CR3, USART_CR3_IRLP, hirda->Init.PowerMode);
+
+ /*-------------------------- USART GTPR Configuration ----------------------*/
+ MODIFY_REG(hirda->Instance->GTPR, USART_GTPR_PSC, hirda->Init.Prescaler);
+
+ /*-------------------------- USART BRR Configuration -----------------------*/
+ __HAL_IRDA_GETCLOCKSOURCE(hirda, clocksource);
+ switch (clocksource)
+ {
+ case IRDA_CLOCKSOURCE_PCLK1:
+ hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetPCLK1Freq() / hirda->Init.BaudRate);
+ break;
+ case IRDA_CLOCKSOURCE_PCLK2:
+ hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetPCLK2Freq() / hirda->Init.BaudRate);
+ break;
+ case IRDA_CLOCKSOURCE_HSI:
+ hirda->Instance->BRR = (uint16_t)(HSI_VALUE / hirda->Init.BaudRate);
+ break;
+ case IRDA_CLOCKSOURCE_SYSCLK:
+ hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetSysClockFreq() / hirda->Init.BaudRate);
+ break;
+ case IRDA_CLOCKSOURCE_LSE:
+ hirda->Instance->BRR = (uint16_t)(LSE_VALUE / hirda->Init.BaudRate);
+ break;
+ case IRDA_CLOCKSOURCE_UNDEFINED:
+ default:
+ ret = HAL_ERROR;
+ break;
+ }
+
+ return ret;
+}
+
+/**
+ * @brief Check the IRDA Idle State
+ * @param hirda: IRDA handle
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef IRDA_CheckIdleState(IRDA_HandleTypeDef *hirda)
+{
+
+ /* Initialize the IRDA ErrorCode */
+ hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
+
+ /* Check if the Transmitter is enabled */
+ if((hirda->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
+ {
+ /* Wait until TEACK flag is set */
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, USART_ISR_TEACK, RESET, TEACK_REACK_TIMEOUT) != HAL_OK)
+ {
+ /* Timeout Occured */
+ return HAL_TIMEOUT;
+ }
+ }
+ /* Check if the Receiver is enabled */
+ if((hirda->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, USART_ISR_REACK, RESET, TEACK_REACK_TIMEOUT) != HAL_OK)
+ {
+ /* Timeout Occured */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Initialize the IRDA state*/
+ hirda->State= HAL_IRDA_STATE_READY;
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Handle IRDA Communication Timeout.
+ * @param hirda: IRDA handle
+ * @param Flag: specifies the IRDA flag to check.
+ * @param Status: the flag status (SET or RESET). The function is locked in a while loop as long as the flag remains set to Status.
+ * @param Timeout: Timeout duration
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
+{
+ uint32_t tickstart = HAL_GetTick();
+
+ /* Wait until flag is set */
+ if(Status == RESET)
+ {
+ while(__HAL_IRDA_GET_FLAG(hirda, Flag) == RESET)
+ {
+ /* Check for the Timeout */
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
+ {
+ /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TXE);
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_RXNE);
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_PE);
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR);
+
+ hirda->State= HAL_IRDA_STATE_TIMEOUT;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ }
+ else
+ {
+ while(__HAL_IRDA_GET_FLAG(hirda, Flag) != RESET)
+ {
+ /* Check for the Timeout */
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
+ {
+ /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TXE);
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_RXNE);
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_PE);
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR);
+
+ hirda->State= HAL_IRDA_STATE_TIMEOUT;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ }
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+#endif /* HAL_IRDA_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
