Diff: targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_irda.c

Revision:

610:813dcc80987e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_irda.c	Fri Aug 14 13:15:17 2015 +0100
@@ -0,0 +1,1569 @@
+/**
+  ******************************************************************************
+  * @file    stm32l4xx_hal_irda.c
+  * @author  MCD Application Team
+  * @version V1.0.0
+  * @date    26-June-2015
+  * @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 State and Errors 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 (eg. IRDA_HandleTypeDef hirda).
+    (#) 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 (TX as alternate function pull-up, RX as alternate function Input).
+        (++) 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 USARTx/UARTx 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 channel.
+            (+++) Enable the DMAx interface clock.
+            (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
+            (+++) Configure the DMA Tx/Rx channel.
+            (+++) Associate the 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 channel.
+
+    (#) 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 handle 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 half of transfer HAL_IRDA_TxHalfCpltCallback() is executed and user can
+            add his own code by customization of function pointer HAL_IRDA_TxHalfCpltCallback()
+       (+) 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 half of transfer HAL_IRDA_RxHalfCpltCallback() is executed and user can
+            add his own code by customization of function pointer HAL_IRDA_RxHalfCpltCallback()
+       (+) 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 : Check whether the specified IRDA flag is set or not
+       (+) __HAL_IRDA_CLEAR_FLAG : Clear the specified IRDA pending flag
+       (+) __HAL_IRDA_ENABLE_IT: Enable the specified IRDA interrupt
+       (+) __HAL_IRDA_DISABLE_IT: Disable the specified IRDA interrupt
+       (+) __HAL_IRDA_GET_IT_SOURCE: Check whether or not the specified IRDA interrupt is enabled
+
+     [..]
+       (@) You can refer to the IRDA HAL driver header file for more useful macros
+
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2015 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 "stm32l4xx_hal.h"
+
+/** @addtogroup STM32L4xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup IRDA IRDA
+  * @brief HAL IRDA module driver
+  * @{
+  */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup IRDA_Private_Constants IRDA Private Constants
+  * @{
+  */
+#define IRDA_TEACK_REACK_TIMEOUT            1000                                   /*!< IRDA TX or RX enable acknowledge time-out value  */
+#define IRDA_CR1_FIELDS  ((uint32_t)(USART_CR1_M | USART_CR1_PCE \
+                                   | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE))  /*!< UART or USART CR1 fields of parameters set by IRDA_SetConfig API */
+/**
+  * @}
+  */
+
+/* Private macros ------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @addtogroup IRDA_Private_Functions
+  * @{
+  */
+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 HAL_StatusTypeDef IRDA_SetConfig(IRDA_HandleTypeDef *hirda);
+static HAL_StatusTypeDef IRDA_CheckIdleState(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 HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
+/**
+  * @}
+  */
+
+/* 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 M1 and M0 bits (7-bit, 
+           8-bit or 9-bit), the possible IRDA frame formats are listed in the 
+           following table.
+            (+++) Table 1. IRDA frame format.
+            (+++)    +-----------------------------------------------------------------------+
+            (+++)    |  M1 bit |  M0 bit |  PCE bit  |             IRDA frame                |
+            (+++)    |---------|---------|-----------|---------------------------------------|
+            (+++)    |    0    |    0    |    0      |    | SB |    8 bit data   | STB |     |
+            (+++)    |---------|---------|-----------|---------------------------------------|
+            (+++)    |    0    |    0    |    1      |    | SB | 7 bit data | PB | STB |     |
+            (+++)    |---------|---------|-----------|---------------------------------------|
+            (+++)    |    0    |    1    |    0      |    | SB |    9 bit data   | STB |     |
+            (+++)    |---------|---------|-----------|---------------------------------------|
+            (+++)    |    0    |    1    |    1      |    | SB | 8 bit data | PB | STB |     |
+            (+++)    |---------|---------|-----------|---------------------------------------|
+            (+++)    |    1    |    0    |    0      |    | SB |    7 bit data   | STB |     |
+            (+++)    |---------|---------|-----------|---------------------------------------|
+            (+++)    |    1    |    0    |    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 Initialize the IRDA mode according to the specified
+  *        parameters in the IRDA_InitTypeDef and initialize 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 USART/UART associated to the IRDA handle */
+  assert_param(IS_IRDA_INSTANCE(hirda->Instance));
+
+  if(hirda->State == HAL_IRDA_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    hirda->Lock = HAL_UNLOCKED;
+
+    /* 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 DeInitialize 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 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 Initialize the IRDA MSP.
+  * @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)
+{
+  /* NOTE: This function should not be modified, when the callback is needed,
+           the HAL_IRDA_MspInit can be implemented in the user file
+   */
+}
+
+/**
+  * @brief DeInitialize the IRDA MSP.
+  * @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)
+{
+  /* 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 IO operation functions
+  *  @brief   IRDA Transmit and 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 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 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 APIs 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()
+        (++) HAL_IRDA_DMAPause()
+        (++) HAL_IRDA_DMAResume()
+        (++) HAL_IRDA_DMAStop()
+
+    (#) A set of Transfer Complete Callbacks are provided in Non Blocking mode:
+        (++) HAL_IRDA_TxHalfCpltCallback()
+        (++) HAL_IRDA_TxCpltCallback()
+        (++) HAL_IRDA_RxHalfCpltCallback()
+        (++) HAL_IRDA_RxCpltCallback()
+        (++) HAL_IRDA_ErrorCallback()
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief Send 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;
+
+  if((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX))
+  {
+    if((pData == 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: 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;
+  uint16_t uhMask;
+
+  if((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_TX))
+  {
+    if((pData == 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 */
+    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: 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)
+{
+  if((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX))
+  {
+    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;
+
+    if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
+    {
+      hirda->State = HAL_IRDA_STATE_BUSY_TX_RX;
+    }
+    else
+    {
+      hirda->State = HAL_IRDA_STATE_BUSY_TX;
+    }
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hirda);
+
+    /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
+    __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_ERR);
+    /* 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: 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)
+{
+  if((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_TX))
+  {
+    if((pData == 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 */
+    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;
+    }
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hirda);
+
+    /* Enable the IRDA Data Register not empty Interrupt */
+    __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_RXNE);
+
+    /* 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);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Send an amount of data in DMA 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;
+
+  if((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX))
+  {
+    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;
+
+    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 IRDA DMA half transfer complete callback */
+    hirda->hdmatx->XferHalfCpltCallback = IRDA_DMATransmitHalfCplt;
+
+    /* 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);
+
+    /* Clear the TC flag in the ICR register */
+    __HAL_IRDA_CLEAR_FLAG(hirda, IRDA_CLEAR_TCF);
+
+    /* Enable the DMA transfer for transmit request by setting the DMAT bit
+       in the USART 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: 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 received data contains
+  *         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 == 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 IRDA DMA half transfer complete callback */
+    hirda->hdmarx->XferHalfCpltCallback = IRDA_DMAReceiveHalfCplt;
+
+    /* 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 USART CR3 register */
+     hirda->Instance->CR3 |= USART_CR3_DMAR;
+
+     /* Process Unlocked */
+     __HAL_UNLOCK(hirda);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+
+/**
+  * @brief Pause 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)
+{
+  /* Process Locked */
+  __HAL_LOCK(hirda);
+  
+  if(hirda->State == HAL_IRDA_STATE_BUSY_TX)
+  {
+    /* Disable the IRDA DMA Tx request */
+    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+  }
+  else if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
+  {
+    /* Disable the IRDA DMA Rx request */
+    CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+  }
+  else if (hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+  {
+    /* Disable the IRDA DMA Tx & Rx requests */
+    CLEAR_BIT(hirda->Instance->CR3, (USART_CR3_DMAT | USART_CR3_DMAR));
+  }
+  else
+  {
+    /* Process Unlocked */
+    __HAL_UNLOCK(hirda);
+  
+    return HAL_ERROR; 
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hirda);
+  
+  return HAL_OK; 
+}
+
+/**
+  * @brief Resume the DMA Transfer.
+  * @param  hirda: Pointer to a IRDA_HandleTypeDef structure that contains
+  *                the configuration information for the specified UART module.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_IRDA_DMAResume(IRDA_HandleTypeDef *hirda)
+{
+  /* Process Locked */
+  __HAL_LOCK(hirda);
+  
+  if(hirda->State == HAL_IRDA_STATE_BUSY_TX)
+  {
+    /* Enable the IRDA DMA Tx request */
+    SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+  }
+  else if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
+  {
+    /* Clear the Overrun flag before resuming the Rx transfer*/
+    __HAL_IRDA_CLEAR_OREFLAG(hirda);
+    /* Enable the IRDA DMA Rx request */
+    SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+  }
+  else if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+  {
+    /* Clear the Overrun flag before resuming the Rx transfer*/
+    __HAL_IRDA_CLEAR_OREFLAG(hirda);
+    /* Enable the IRDA DMA Tx & Rx request */
+    SET_BIT(hirda->Instance->CR3, (USART_CR3_DMAT | USART_CR3_DMAR));
+  }
+  else
+  {
+    /* Process Unlocked */
+    __HAL_UNLOCK(hirda);
+  
+    return HAL_ERROR; 
+  }
+  
+  /* Process Unlocked */
+  __HAL_UNLOCK(hirda);
+  
+  return HAL_OK;
+}
+
+/**
+  * @brief Stop the DMA Transfer.
+  * @param  hirda: Pointer to a IRDA_HandleTypeDef structure that contains
+  *                the configuration information for the specified UART module.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_IRDA_DMAStop(IRDA_HandleTypeDef *hirda)
+{
+  /* 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() /
+     HAL_IRDA_TxHalfCpltCallback / HAL_IRDA_RxHalfCpltCallback: 
+     indeed, when HAL_DMA_Abort() API is called, the DMA TX/RX Transfer or Half Transfer complete  
+     interrupt is generated if the DMA transfer interruption occurs at the middle or at the end of 
+     the stream and the corresponding call back is executed. */
+
+  /* Disable the IRDA Tx/Rx DMA requests */
+  CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+  CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+  
+  /* Abort the IRDA DMA tx channel */
+  if(hirda->hdmatx != NULL)
+  {
+    HAL_DMA_Abort(hirda->hdmatx);
+  }
+  /* Abort the IRDA DMA rx channel */
+  if(hirda->hdmarx != NULL)
+  {
+    HAL_DMA_Abort(hirda->hdmarx);
+  }
+  
+  hirda->State = HAL_IRDA_STATE_READY;
+
+  return HAL_OK;
+}
+
+
+/**
+  * @brief Handle 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)
+{
+  /* 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 occurred --------------------------------------*/
+  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 occurred --------------------------------------*/
+  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 occurred -----------------------------------------*/
+  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);
+  }
+
+}
+
+/**
+  * @brief  Tx Transfer completed callback.
+  * @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)
+{
+  /* NOTE: This function should not be modified, when the callback is needed,
+           the HAL_IRDA_TxCpltCallback can be implemented in the user file.
+   */
+}
+
+/**
+  * @brief  Tx Half Transfer completed callback.
+  * @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)
+{
+  /* NOTE: This function should not be modified, when the callback is needed,
+           the HAL_IRDA_TxHalfCpltCallback can be implemented in the user file.
+   */
+}
+
+/**
+  * @brief  Rx Transfer completed callback.
+  * @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)
+{
+  /* NOTE: This function should not be modified, when the callback is needed,
+           the HAL_IRDA_RxCpltCallback can be implemented in the user file.
+   */
+}
+
+/**
+  * @brief  Rx Half Transfer complete callback.
+  * @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)
+{
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_IRDA_RxHalfCpltCallback can be implemented in the user file.
+   */
+}
+
+/**
+  * @brief  IRDA error callback.
+  * @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)
+{
+  /* NOTE: This function should not be modified, when the callback is needed,
+           the HAL_IRDA_ErrorCallback can be implemented in the user file.
+   */
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup IRDA_Exported_Functions_Group4 Peripheral State and Error 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 handle.
+     (+) HAL_IRDA_GetError() checks in run-time errors that could occur during
+         communication.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief Return the IRDA handle 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)
+{
+  /* Return IRDA handle state */
+  return hirda->State;
+}
+
+/**
+  * @brief Return the IRDA handle error code.
+  * @param hirda: Pointer to a IRDA_HandleTypeDef structure that contains
+  *               the configuration information for the specified IRDA module.
+  * @retval IRDA Error Code
+  */
+uint32_t HAL_IRDA_GetError(IRDA_HandleTypeDef *hirda)
+{
+  return hirda->ErrorCode;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup IRDA_Private_Functions IRDA Private Functions
+  * @{
+  */
+
+/**
+  * @brief  DMA IRDA transmit process complete callback.
+  * @param  hdma: Pointer to a DMA_HandleTypeDef structure that contains
+  *               the configuration information for the specified DMA module.
+  * @retval None
+  */
+static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma)
+{
+  IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+  /* DMA Normal mode */
+  if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) )
+  {
+    hirda->TxXferCount = 0;
+
+    /* Disable the DMA transfer for transmit request by resetting the DMAT bit
+       in the IRDA CR3 register */
+    hirda->Instance->CR3 &= ~(USART_CR3_DMAT);
+
+    /* Enable the IRDA Transmit Complete Interrupt */
+    __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_TC);
+  }
+  /* 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: Pointer to a DMA_HandleTypeDef structure that contains
+  *               the configuration information for the specified DMA module.
+  * @retval None
+  */
+static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
+{
+  IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+  /* DMA Normal mode */
+  if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) )
+  {
+    hirda->RxXferCount = 0;
+
+    /* Disable the DMA transfer for the receiver request by resetting the DMAR bit
+       in the IRDA CR3 register */
+    hirda->Instance->CR3 &= ~(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 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: Pointer to a DMA_HandleTypeDef structure that contains
+  *              the configuration information for the specified DMA module.
+  * @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->ErrorCode |= HAL_IRDA_ERROR_DMA;
+  hirda->State= HAL_IRDA_STATE_READY;
+
+  HAL_IRDA_ErrorCallback(hirda);
+}
+
+/**
+  * @brief  Handle 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). 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_READY;
+
+          /* 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_READY;
+
+          /* Process Unlocked */
+          __HAL_UNLOCK(hirda);
+
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+  }
+  return HAL_OK;
+}
+
+/**
+  * @brief  Send an amount of data in non-blocking mode.
+  * @note   Function is called under interruption only, once
+  *         interruptions have been enabled by HAL_IRDA_Transmit_IT().
+  * @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;
+
+  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  Wrap 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 is called under interruption only, once
+  *         interruptions have been enabled by HAL_IRDA_Receive_IT().
+  * @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 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;
+  }
+}
+
+/**
+  * @brief Configure the IRDA peripheral.
+  * @param hirda: Pointer to a IRDA_HandleTypeDef structure that contains
+  *               the configuration information for the specified IRDA module.
+  * @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 -----------------------*/
+  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: Pointer to a IRDA_HandleTypeDef structure that contains
+  *               the configuration information for the specified IRDA module.
+  * @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, IRDA_TEACK_REACK_TIMEOUT) != HAL_OK)
+    {
+      /* Timeout occurred */
+      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, IRDA_TEACK_REACK_TIMEOUT) != HAL_OK)
+    {
+      /* Timeout occurred */
+      return HAL_TIMEOUT;
+    }
+  }
+
+  /* Initialize the IRDA state*/
+  hirda->State= HAL_IRDA_STATE_READY;
+  /* Process Unlocked */
+  __HAL_UNLOCK(hirda);
+
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+#endif /* HAL_IRDA_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/