--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c	Thu Mar 07 15:06:43 2019 +0100
@@ -0,0 +1,1296 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_hal_spdifrx.c
+  * @author  MCD Application Team
+  * @brief   This file provides firmware functions to manage the following
+  *          functionalities of the SPDIFRX audio interface:
+  *           + Initialization and Configuration
+  *           + Data transfers functions
+  *           + DMA transfers management
+  *           + Interrupts and flags management
+  @verbatim
+ ===============================================================================
+                      ##### How to use this driver #####
+ ===============================================================================
+ [..]
+    The SPDIFRX HAL driver can be used as follow:
+
+    (#) Declare SPDIFRX_HandleTypeDef handle structure.
+    (#) Initialize the SPDIFRX low level resources by implement the HAL_SPDIFRX_MspInit() API:
+        (##) Enable the SPDIFRX interface clock.
+        (##) SPDIFRX pins configuration:
+            (+++) Enable the clock for the SPDIFRX GPIOs.
+            (+++) Configure these SPDIFRX pins as alternate function pull-up.
+        (##) NVIC configuration if you need to use interrupt process (HAL_SPDIFRX_ReceiveControlFlow_IT() and HAL_SPDIFRX_ReceiveDataFlow_IT() API's).
+            (+++) Configure the SPDIFRX interrupt priority.
+            (+++) Enable the NVIC SPDIFRX IRQ handle.
+        (##) DMA Configuration if you need to use DMA process (HAL_SPDIFRX_ReceiveDataFlow_DMA() and HAL_SPDIFRX_ReceiveControlFlow_DMA() API's).
+            (+++) Declare a DMA handle structure for the reception of the Data Flow channel.
+            (+++) Declare a DMA handle structure for the reception of the Control Flow channel.
+            (+++) Enable the DMAx interface clock.
+            (+++) Configure the declared DMA handle structure CtrlRx/DataRx with the required parameters.
+            (+++) Configure the DMA Channel.
+            (+++) Associate the initialized DMA handle to the SPDIFRX DMA CtrlRx/DataRx handle.
+            (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the 
+                  DMA CtrlRx/DataRx channel.
+
+   (#) Program the input selection, re-tries number, wait for activity, channel status selection, data format, stereo mode and masking of user bits
+       using HAL_SPDIFRX_Init() function.
+
+   -@- The specific SPDIFRX interrupts (RXNE/CSRNE and Error Interrupts) will be managed using the macros
+       __SPDIFRX_ENABLE_IT() and __SPDIFRX_DISABLE_IT() inside the receive process.
+   -@- Make sure that ck_spdif clock is configured.
+
+   (#) Three operation modes are available within this driver :
+
+   *** Polling mode for reception operation (for debug purpose) ***
+   ================================================================
+   [..]
+     (+) Receive data flow in blocking mode using HAL_SPDIFRX_ReceiveDataFlow()
+         (+) Receive control flow of data in blocking mode using HAL_SPDIFRX_ReceiveControlFlow()
+
+   *** Interrupt mode for reception operation ***
+   =========================================
+   [..]    
+     (+) Receive an amount of data (Data Flow) in non blocking mode using HAL_SPDIFRX_ReceiveDataFlow_IT() 
+     (+) Receive an amount of data (Control Flow) in non blocking mode using HAL_SPDIFRX_ReceiveControlFlow_IT() 
+     (+) At reception end of half transfer HAL_SPDIFRX_RxHalfCpltCallback is executed and user can 
+         add his own code by customization of function pointer HAL_SPDIFRX_RxHalfCpltCallback 
+     (+) At reception end of transfer HAL_SPDIFRX_RxCpltCallback is executed and user can
+         add his own code by customization of function pointer HAL_SPDIFRX_RxCpltCallback
+     (+) In case of transfer Error, HAL_SPDIFRX_ErrorCallback() function is executed and user can
+         add his own code by customization of function pointer HAL_SPDIFRX_ErrorCallback
+
+   *** DMA mode for reception operation ***
+   ========================================
+   [..]
+     (+) Receive an amount of data (Data Flow) in non blocking mode (DMA) using HAL_SPDIFRX_ReceiveDataFlow_DMA() 
+     (+) Receive an amount of data (Control Flow) in non blocking mode (DMA) using HAL_SPDIFRX_ReceiveControlFlow_DMA()
+     (+) At reception end of half transfer HAL_SPDIFRX_RxHalfCpltCallback is executed and user can
+         add his own code by customization of function pointer HAL_SPDIFRX_RxHalfCpltCallback
+     (+) At reception end of transfer HAL_SPDIFRX_RxCpltCallback is executed and user can
+         add his own code by customization of function pointer HAL_SPDIFRX_RxCpltCallback
+     (+) In case of transfer Error, HAL_SPDIFRX_ErrorCallback() function is executed and user can
+         add his own code by customization of function pointer HAL_SPDIFRX_ErrorCallback
+     (+) Stop the DMA Transfer using HAL_SPDIFRX_DMAStop()
+
+   *** SPDIFRX HAL driver macros list ***
+   =============================================
+   [..]
+     Below the list of most used macros in SPDIFRX HAL driver.
+      (+) __HAL_SPDIFRX_IDLE: Disable the specified SPDIFRX peripheral (IDEL State)
+      (+) __HAL_SPDIFRX_SYNC: Enable the synchronization state of the specified SPDIFRX peripheral (SYNC State)
+      (+) __HAL_SPDIFRX_RCV: Enable the receive state of the specified SPDIFRX peripheral (RCV State)
+      (+) __HAL_SPDIFRX_ENABLE_IT : Enable the specified SPDIFRX interrupts
+      (+) __HAL_SPDIFRX_DISABLE_IT : Disable the specified SPDIFRX interrupts
+      (+) __HAL_SPDIFRX_GET_FLAG: Check whether the specified SPDIFRX flag is set or not.
+
+   [..]
+      (@) You can refer to the SPDIFRX HAL driver header file for more useful macros
+
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+  * @{
+  */
+/** @defgroup SPDIFRX SPDIFRX
+  * @brief SPDIFRX HAL module driver
+  * @{
+  */
+
+#ifdef HAL_SPDIFRX_MODULE_ENABLED
+
+#if defined(STM32F446xx)
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+#define SPDIFRX_TIMEOUT_VALUE  0xFFFF
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+
+/** @addtogroup SPDIFRX_Private_Functions
+  * @{
+  */
+static void  SPDIFRX_DMARxCplt(DMA_HandleTypeDef *hdma);
+static void  SPDIFRX_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
+static void  SPDIFRX_DMACxCplt(DMA_HandleTypeDef *hdma);
+static void  SPDIFRX_DMACxHalfCplt(DMA_HandleTypeDef *hdma);
+static void  SPDIFRX_DMAError(DMA_HandleTypeDef *hdma);
+static void  SPDIFRX_ReceiveControlFlow_IT(SPDIFRX_HandleTypeDef *hspdif);
+static void  SPDIFRX_ReceiveDataFlow_IT(SPDIFRX_HandleTypeDef *hspdif);
+static HAL_StatusTypeDef  SPDIFRX_WaitOnFlagUntilTimeout(SPDIFRX_HandleTypeDef *hspdif, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
+
+/**
+  * @}
+  */
+/* Exported functions ---------------------------------------------------------*/
+
+/** @defgroup SPDIFRX_Exported_Functions SPDIFRX Exported Functions
+  * @{
+  */
+
+/** @defgroup  SPDIFRX_Exported_Functions_Group1 Initialization and de-initialization functions
+  *  @brief    Initialization and Configuration functions
+  *
+  @verbatim
+  ===============================================================================
+           ##### Initialization and de-initialization functions #####
+  ===============================================================================
+  [..] This subsection provides a set of functions allowing to initialize and
+       de-initialize the SPDIFRX peripheral:
+
+     (+) User must Implement HAL_SPDIFRX_MspInit() function in which he configures
+         all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
+
+     (+) Call the function HAL_SPDIFRX_Init() to configure the SPDIFRX peripheral with
+         the selected configuration:
+         (++) Input Selection (IN0, IN1,...)
+         (++) Maximum allowed re-tries during synchronization phase
+         (++) Wait for activity on SPDIF selected input
+         (++) Channel status selection (from channel A or B)
+         (++) Data format (LSB, MSB, ...)
+         (++) Stereo mode
+         (++) User bits masking (PT,C,U,V,...)
+
+     (+) Call the function HAL_SPDIFRX_DeInit() to restore the default configuration
+         of the selected SPDIFRXx peripheral.
+  @endverbatim
+  * @{
+  */
+
+/**
+  * @brief Initializes the SPDIFRX according to the specified parameters
+  *        in the SPDIFRX_InitTypeDef and create the associated handle.
+  * @param hspdif SPDIFRX handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_Init(SPDIFRX_HandleTypeDef *hspdif)
+{
+  uint32_t tmpreg = 0U;
+
+  /* Check the SPDIFRX handle allocation */
+  if(hspdif == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the SPDIFRX parameters */
+  assert_param(IS_STEREO_MODE(hspdif->Init.StereoMode));
+  assert_param(IS_SPDIFRX_INPUT_SELECT(hspdif->Init.InputSelection));
+  assert_param(IS_SPDIFRX_MAX_RETRIES(hspdif->Init.Retries));
+  assert_param(IS_SPDIFRX_WAIT_FOR_ACTIVITY(hspdif->Init.WaitForActivity));
+  assert_param(IS_SPDIFRX_CHANNEL(hspdif->Init.ChannelSelection));
+  assert_param(IS_SPDIFRX_DATA_FORMAT(hspdif->Init.DataFormat));
+  assert_param(IS_PREAMBLE_TYPE_MASK(hspdif->Init.PreambleTypeMask));
+  assert_param(IS_CHANNEL_STATUS_MASK(hspdif->Init.ChannelStatusMask));
+  assert_param(IS_VALIDITY_MASK(hspdif->Init.ValidityBitMask));
+  assert_param(IS_PARITY_ERROR_MASK(hspdif->Init.ParityErrorMask));
+
+  if(hspdif->State == HAL_SPDIFRX_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    hspdif->Lock = HAL_UNLOCKED;
+    /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
+    HAL_SPDIFRX_MspInit(hspdif);
+  }
+
+     /* SPDIFRX peripheral state is BUSY*/
+   hspdif->State = HAL_SPDIFRX_STATE_BUSY;
+
+  /* Disable SPDIFRX interface (IDLE State) */
+  __HAL_SPDIFRX_IDLE(hspdif);
+
+  /* Reset the old SPDIFRX CR configuration */
+  tmpreg = hspdif->Instance->CR;
+
+  tmpreg &= ~((uint16_t) SPDIFRX_CR_RXSTEO  | SPDIFRX_CR_DRFMT  | SPDIFRX_CR_PMSK |
+                         SPDIFRX_CR_VMSK | SPDIFRX_CR_CUMSK | SPDIFRX_CR_PTMSK  |
+                         SPDIFRX_CR_CHSEL | SPDIFRX_CR_NBTR | SPDIFRX_CR_WFA |
+                         SPDIFRX_CR_INSEL);
+
+  /* Sets the new configuration of the SPDIFRX peripheral */
+  tmpreg |= ((uint16_t) hspdif->Init.StereoMode |
+                        hspdif->Init.InputSelection |
+                        hspdif->Init.Retries |
+                        hspdif->Init.WaitForActivity |
+                        hspdif->Init.ChannelSelection |
+                        hspdif->Init.DataFormat |
+                        hspdif->Init.PreambleTypeMask |
+                        hspdif->Init.ChannelStatusMask |
+                        hspdif->Init.ValidityBitMask |
+                        hspdif->Init.ParityErrorMask);
+
+  hspdif->Instance->CR = tmpreg;
+
+  hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE;
+
+    /* SPDIFRX peripheral state is READY*/
+  hspdif->State = HAL_SPDIFRX_STATE_READY;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief DeInitializes the SPDIFRX peripheral
+  * @param hspdif SPDIFRX handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_DeInit(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Check the SPDIFRX handle allocation */
+  if(hspdif == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the parameters */
+  assert_param(IS_SPDIFRX_ALL_INSTANCE(hspdif->Instance));
+
+  hspdif->State = HAL_SPDIFRX_STATE_BUSY;
+
+  /* Disable SPDIFRX interface (IDLE state) */
+  __HAL_SPDIFRX_IDLE(hspdif);
+
+  /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
+  HAL_SPDIFRX_MspDeInit(hspdif);
+
+  hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE;
+
+  /* SPDIFRX peripheral state is RESET*/
+  hspdif->State = HAL_SPDIFRX_STATE_RESET;
+
+  /* Release Lock */
+  __HAL_UNLOCK(hspdif);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief SPDIFRX MSP Init
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+__weak void HAL_SPDIFRX_MspInit(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hspdif);
+  /* NOTE : This function Should not be modified, when the callback is needed,
+            the HAL_SPDIFRX_MspInit could be implemented in the user file
+  */
+}
+
+/**
+  * @brief SPDIFRX MSP DeInit
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+__weak void HAL_SPDIFRX_MspDeInit(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hspdif);
+  /* NOTE : This function Should not be modified, when the callback is needed,
+            the HAL_SPDIFRX_MspDeInit could be implemented in the user file
+  */
+}
+
+/**
+  * @brief Sets the SPDIFRX  dtat format according to the specified parameters
+  *        in the SPDIFRX_InitTypeDef.
+  * @param hspdif SPDIFRX handle
+  * @param sDataFormat SPDIFRX data format
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_SetDataFormat(SPDIFRX_HandleTypeDef *hspdif, SPDIFRX_SetDataFormatTypeDef  sDataFormat)
+{
+  uint32_t tmpreg = 0U;
+
+  /* Check the SPDIFRX handle allocation */
+  if(hspdif == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the SPDIFRX parameters */
+  assert_param(IS_STEREO_MODE(sDataFormat.StereoMode));
+  assert_param(IS_SPDIFRX_DATA_FORMAT(sDataFormat.DataFormat));
+  assert_param(IS_PREAMBLE_TYPE_MASK(sDataFormat.PreambleTypeMask));
+  assert_param(IS_CHANNEL_STATUS_MASK(sDataFormat.ChannelStatusMask));
+  assert_param(IS_VALIDITY_MASK(sDataFormat.ValidityBitMask));
+  assert_param(IS_PARITY_ERROR_MASK(sDataFormat.ParityErrorMask));
+
+  /* Reset the old SPDIFRX CR configuration */
+  tmpreg = hspdif->Instance->CR;
+
+  if(((tmpreg & SPDIFRX_STATE_RCV) == SPDIFRX_STATE_RCV) &&
+    (((tmpreg & SPDIFRX_CR_DRFMT) != sDataFormat.DataFormat) ||
+    ((tmpreg & SPDIFRX_CR_RXSTEO) != sDataFormat.StereoMode)))
+  {
+      return HAL_ERROR;
+  }
+
+  tmpreg &= ~((uint16_t) SPDIFRX_CR_RXSTEO  | SPDIFRX_CR_DRFMT  | SPDIFRX_CR_PMSK |
+                         SPDIFRX_CR_VMSK | SPDIFRX_CR_CUMSK | SPDIFRX_CR_PTMSK);
+
+  /* Sets the new configuration of the SPDIFRX peripheral */
+  tmpreg |= ((uint16_t) sDataFormat.StereoMode |
+                        sDataFormat.DataFormat |
+                        sDataFormat.PreambleTypeMask |
+                        sDataFormat.ChannelStatusMask |
+                        sDataFormat.ValidityBitMask |
+                        sDataFormat.ParityErrorMask);
+
+  hspdif->Instance->CR = tmpreg;
+
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup SPDIFRX_Exported_Functions_Group2 IO operation functions
+  *  @brief Data transfers functions
+  *
+@verbatim
+===============================================================================
+                      ##### IO operation functions #####
+===============================================================================
+    [..]
+    This subsection provides a set of functions allowing to manage the SPDIFRX data
+    transfers.
+
+    (#) There is two mode of transfer:
+        (++) Blocking mode : The communication is performed in the polling mode.
+             The 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 functions return the status of the transfer start-up.
+             The end of the data processing will be indicated through the
+             dedicated SPDIFRX IRQ when using Interrupt mode or the DMA IRQ when
+             using DMA mode.
+
+    (#) Blocking mode functions are :
+        (++) HAL_SPDIFRX_ReceiveDataFlow()
+        (++) HAL_SPDIFRX_ReceiveControlFlow()
+                (+@) Do not use blocking mode to receive both control and data flow at the same time.
+
+    (#) No-Blocking mode functions with Interrupt are :
+        (++) HAL_SPDIFRX_ReceiveControlFlow_IT()
+        (++) HAL_SPDIFRX_ReceiveDataFlow_IT()
+
+    (#) No-Blocking mode functions with DMA are :
+        (++) HAL_SPDIFRX_ReceiveControlFlow_DMA()
+        (++) HAL_SPDIFRX_ReceiveDataFlow_DMA()
+
+    (#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
+        (++) HAL_SPDIFRX_RxCpltCallback()
+        (++) HAL_SPDIFRX_ErrorCallback()
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Receives an amount of data (Data Flow) in blocking mode.
+  * @param  hspdif pointer to SPDIFRX_HandleTypeDef structure that contains
+  *                 the configuration information for SPDIFRX module.
+  * @param  pData Pointer to data buffer
+  * @param  Size Amount of data to be received
+  * @param  Timeout Timeout duration
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_ReceiveDataFlow(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size, uint32_t Timeout)
+{
+  if((pData == NULL ) || (Size == 0))
+  {
+    return  HAL_ERROR;
+  }
+
+  if(hspdif->State == HAL_SPDIFRX_STATE_READY)
+  {
+    /* Process Locked */
+    __HAL_LOCK(hspdif);
+
+    hspdif->State = HAL_SPDIFRX_STATE_BUSY;
+
+    /* Start synchronisation */
+    __HAL_SPDIFRX_SYNC(hspdif);
+
+    /* Wait until SYNCD flag is set */
+    if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, Timeout) != HAL_OK)
+    {
+      return HAL_TIMEOUT;
+    }
+
+    /* Start reception */
+    __HAL_SPDIFRX_RCV(hspdif);
+
+    /* Receive data flow */
+    while(Size > 0)
+    {
+      /* Wait until RXNE flag is set */
+      if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+      {
+        return HAL_TIMEOUT;
+      }
+
+      (*pData++) = hspdif->Instance->DR;
+      Size--;
+    }
+
+    /* SPDIFRX ready */
+    hspdif->State = HAL_SPDIFRX_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hspdif);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief  Receives an amount of data (Control Flow) in blocking mode.
+  * @param  hspdif pointer to a SPDIFRX_HandleTypeDef structure that contains
+  *                 the configuration information for SPDIFRX module.
+  * @param  pData Pointer to data buffer
+  * @param  Size Amount of data to be received
+  * @param  Timeout Timeout duration
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_ReceiveControlFlow(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size, uint32_t Timeout)
+{
+  if((pData == NULL ) || (Size == 0))
+  {
+    return  HAL_ERROR;
+  }
+
+  if(hspdif->State == HAL_SPDIFRX_STATE_READY)
+  {
+    /* Process Locked */
+    __HAL_LOCK(hspdif);
+
+    hspdif->State = HAL_SPDIFRX_STATE_BUSY;
+
+    /* Start synchronization */
+    __HAL_SPDIFRX_SYNC(hspdif);
+
+    /* Wait until SYNCD flag is set */
+    if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, Timeout) != HAL_OK)
+    {
+      return HAL_TIMEOUT;
+    }
+
+    /* Start reception */
+    __HAL_SPDIFRX_RCV(hspdif);
+
+    /* Receive control flow */
+    while(Size > 0)
+    {
+      /* Wait until CSRNE flag is set */
+      if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_CSRNE, RESET, Timeout) != HAL_OK)
+      {
+        return HAL_TIMEOUT;
+      }
+      
+      (*pData++) = hspdif->Instance->CSR;
+      Size--;
+    }
+
+    /* SPDIFRX ready */
+    hspdif->State = HAL_SPDIFRX_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hspdif);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+/**
+  * @brief Receive an amount of data (Data Flow) in non-blocking mode with Interrupt
+  * @param hspdif SPDIFRX handle
+  * @param pData a 32-bit pointer to the Receive data buffer.
+  * @param Size number of data sample to be received .
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_ReceiveDataFlow_IT(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size)
+{
+  __IO uint32_t count = SPDIFRX_TIMEOUT_VALUE * (SystemCoreClock / 24U / 1000U);
+
+  if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_CX))
+  {
+    if((pData == NULL) || (Size == 0))
+    {
+      return HAL_ERROR;
+    }
+
+    /* Process Locked */
+    __HAL_LOCK(hspdif);
+
+    hspdif->pRxBuffPtr = pData;
+    hspdif->RxXferSize = Size;
+    hspdif->RxXferCount = Size;
+
+    hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE;
+
+    /* Check if a receive process is ongoing or not */
+    hspdif->State = HAL_SPDIFRX_STATE_BUSY_RX;
+
+    /* Enable the SPDIFRX  PE Error Interrupt */
+    __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_PERRIE);
+
+    /* Enable the SPDIFRX  OVR Error Interrupt */
+    __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_OVRIE);
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hspdif);
+
+    /* Enable the SPDIFRX RXNE interrupt */
+    __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_RXNE);
+
+    if ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC || (SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U)
+    {
+      /* Start synchronization */
+      __HAL_SPDIFRX_SYNC(hspdif);
+
+      /* Wait until SYNCD flag is set */
+      do
+      {
+        if (count-- == 0U)
+        {
+          /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE);
+
+          hspdif->State= HAL_SPDIFRX_STATE_READY;
+
+          /* Process Unlocked */
+          __HAL_UNLOCK(hspdif);
+
+          return HAL_TIMEOUT;
+        }
+      }
+      while (__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_SYNCD) == RESET);
+
+      /* Start reception */
+      __HAL_SPDIFRX_RCV(hspdif);
+    }
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Receive an amount of data (Control Flow) with Interrupt
+  * @param hspdif SPDIFRX handle
+  * @param pData a 32-bit pointer to the Receive data buffer.
+  * @param Size number of data sample (Control Flow) to be received :
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_ReceiveControlFlow_IT(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size)
+{
+  __IO uint32_t count = SPDIFRX_TIMEOUT_VALUE * (SystemCoreClock / 24U / 1000U);
+
+  if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_RX))
+  {
+    if((pData == NULL ) || (Size == 0))
+    {
+      return HAL_ERROR;
+    }
+
+    /* Process Locked */
+    __HAL_LOCK(hspdif);
+
+    hspdif->pCsBuffPtr = pData;
+    hspdif->CsXferSize = Size;
+    hspdif->CsXferCount = Size;
+
+    hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE;
+
+    /* Check if a receive process is ongoing or not */
+    hspdif->State = HAL_SPDIFRX_STATE_BUSY_CX;
+
+    /* Enable the SPDIFRX PE Error Interrupt */
+    __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_PERRIE);
+
+    /* Enable the SPDIFRX OVR Error Interrupt */
+    __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_OVRIE);
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hspdif);
+
+    /* Enable the SPDIFRX CSRNE interrupt */
+    __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_CSRNE);
+
+    if ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC || (SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U)
+    {
+      /* Start synchronization */
+      __HAL_SPDIFRX_SYNC(hspdif);
+
+      /* Wait until SYNCD flag is set */
+      do
+      {
+        if (count-- == 0U)
+        {
+          /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE);
+
+          hspdif->State= HAL_SPDIFRX_STATE_READY;
+
+          /* Process Unlocked */
+          __HAL_UNLOCK(hspdif);
+
+          return HAL_TIMEOUT;
+        }
+      }
+      while (__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_SYNCD) == RESET);
+
+      /* Start reception */
+      __HAL_SPDIFRX_RCV(hspdif);
+    }
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Receive an amount of data (Data Flow) mode with DMA
+  * @param hspdif SPDIFRX handle
+  * @param pData a 32-bit pointer to the Receive data buffer.
+  * @param Size number of data sample to be received :
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_ReceiveDataFlow_DMA(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size)
+{
+  __IO uint32_t count = SPDIFRX_TIMEOUT_VALUE * (SystemCoreClock / 24U / 1000U);
+
+  if((pData == NULL) || (Size == 0))
+  {
+    return  HAL_ERROR;
+  }
+  
+  if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_CX))
+  {
+    hspdif->pRxBuffPtr = pData;
+    hspdif->RxXferSize = Size;
+    hspdif->RxXferCount = Size;
+
+    /* Process Locked */
+    __HAL_LOCK(hspdif);
+
+    hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE;
+    hspdif->State = HAL_SPDIFRX_STATE_BUSY_RX;
+
+    /* Set the SPDIFRX Rx DMA Half transfer complete callback */
+    hspdif->hdmaDrRx->XferHalfCpltCallback = SPDIFRX_DMARxHalfCplt;
+
+    /* Set the SPDIFRX Rx DMA transfer complete callback */
+    hspdif->hdmaDrRx->XferCpltCallback = SPDIFRX_DMARxCplt;
+
+    /* Set the DMA error callback */
+    hspdif->hdmaDrRx->XferErrorCallback = SPDIFRX_DMAError;
+
+    /* Enable the DMA request */
+    HAL_DMA_Start_IT(hspdif->hdmaDrRx, (uint32_t)&hspdif->Instance->DR, (uint32_t)hspdif->pRxBuffPtr, Size);
+
+    /* Enable RXDMAEN bit in SPDIFRX CR register for data flow reception*/
+    hspdif->Instance->CR |= SPDIFRX_CR_RXDMAEN;
+
+    if ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC || (SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U)
+    {
+      /* Start synchronization */
+      __HAL_SPDIFRX_SYNC(hspdif);
+
+      /* Wait until SYNCD flag is set */
+      do
+      {
+        if (count-- == 0U)
+        {
+          /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE);
+
+          hspdif->State= HAL_SPDIFRX_STATE_READY;
+
+          /* Process Unlocked */
+          __HAL_UNLOCK(hspdif);
+
+          return HAL_TIMEOUT;
+        }
+      }
+      while (__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_SYNCD) == RESET);
+
+      /* Start reception */
+      __HAL_SPDIFRX_RCV(hspdif);
+    }
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hspdif);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Receive an amount of data (Control Flow) with DMA
+  * @param hspdif SPDIFRX handle
+  * @param pData a 32-bit pointer to the Receive data buffer.
+  * @param Size number of data (Control Flow) sample to be received :
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_ReceiveControlFlow_DMA(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size)
+{
+  __IO uint32_t count = SPDIFRX_TIMEOUT_VALUE * (SystemCoreClock / 24U / 1000U);
+
+  if((pData == NULL) || (Size == 0))
+  {
+    return  HAL_ERROR;
+  }
+
+  if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_RX))
+  {
+    hspdif->pCsBuffPtr = pData;
+    hspdif->CsXferSize = Size;
+    hspdif->CsXferCount = Size;
+
+    /* Process Locked */
+    __HAL_LOCK(hspdif);
+
+    hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE;
+    hspdif->State = HAL_SPDIFRX_STATE_BUSY_CX;
+
+    /* Set the SPDIFRX Rx DMA Half transfer complete callback */
+    hspdif->hdmaCsRx->XferHalfCpltCallback = SPDIFRX_DMACxHalfCplt;
+
+    /* Set the SPDIFRX Rx DMA transfer complete callback */
+    hspdif->hdmaCsRx->XferCpltCallback = SPDIFRX_DMACxCplt;
+
+    /* Set the DMA error callback */
+    hspdif->hdmaCsRx->XferErrorCallback = SPDIFRX_DMAError;
+
+    /* Enable the DMA request */
+    HAL_DMA_Start_IT(hspdif->hdmaCsRx, (uint32_t)&hspdif->Instance->CSR, (uint32_t)hspdif->pCsBuffPtr, Size);
+
+    /* Enable CBDMAEN bit in SPDIFRX CR register for control flow reception*/
+    hspdif->Instance->CR |= SPDIFRX_CR_CBDMAEN;
+
+    if ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC || (SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U)
+    {
+      /* Start synchronization */
+      __HAL_SPDIFRX_SYNC(hspdif);
+
+      /* Wait until SYNCD flag is set */
+      do
+      {
+        if (count-- == 0U)
+        {
+          /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE);
+
+          hspdif->State= HAL_SPDIFRX_STATE_READY;
+
+          /* Process Unlocked */
+          __HAL_UNLOCK(hspdif);
+
+          return HAL_TIMEOUT;
+        }
+      }
+      while (__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_SYNCD) == RESET);
+
+      /* Start reception */
+      __HAL_SPDIFRX_RCV(hspdif);
+    }
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hspdif);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief stop the audio stream receive from the Media.
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+HAL_StatusTypeDef HAL_SPDIFRX_DMAStop(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Process Locked */
+  __HAL_LOCK(hspdif);
+
+  /* Disable the SPDIFRX DMA requests */
+  hspdif->Instance->CR &= (uint16_t)(~SPDIFRX_CR_RXDMAEN);
+  hspdif->Instance->CR &= (uint16_t)(~SPDIFRX_CR_CBDMAEN);
+
+  /* Disable the SPDIFRX DMA channel */
+  __HAL_DMA_DISABLE(hspdif->hdmaDrRx);
+  __HAL_DMA_DISABLE(hspdif->hdmaCsRx);
+
+  /* Disable SPDIFRX peripheral */
+  __HAL_SPDIFRX_IDLE(hspdif);
+
+  hspdif->State = HAL_SPDIFRX_STATE_READY;
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hspdif);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  This function handles SPDIFRX interrupt request.
+  * @param  hspdif SPDIFRX handle
+  * @retval HAL status
+  */
+void HAL_SPDIFRX_IRQHandler(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* SPDIFRX in mode Data Flow Reception ------------------------------------------------*/
+  if((__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_RXNE) != RESET) && (__HAL_SPDIFRX_GET_IT_SOURCE(hspdif, SPDIFRX_IT_RXNE) != RESET))
+  {
+    __HAL_SPDIFRX_CLEAR_IT(hspdif, SPDIFRX_IT_RXNE);
+    SPDIFRX_ReceiveDataFlow_IT(hspdif);
+  }
+
+  /* SPDIFRX in mode Control Flow Reception ------------------------------------------------*/
+  if((__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_CSRNE) != RESET) && (__HAL_SPDIFRX_GET_IT_SOURCE(hspdif, SPDIFRX_IT_CSRNE) != RESET))
+  {
+    __HAL_SPDIFRX_CLEAR_IT(hspdif, SPDIFRX_IT_CSRNE);
+    SPDIFRX_ReceiveControlFlow_IT(hspdif);
+  }
+
+  /* SPDIFRX Overrun error interrupt occurred ---------------------------------*/
+  if((__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_OVR) != RESET) && (__HAL_SPDIFRX_GET_IT_SOURCE(hspdif, SPDIFRX_IT_OVRIE) != RESET))
+  {
+    __HAL_SPDIFRX_CLEAR_IT(hspdif, SPDIFRX_FLAG_OVR);
+
+    /* Change the SPDIFRX error code */
+    hspdif->ErrorCode |= HAL_SPDIFRX_ERROR_OVR;
+
+    /* the transfer is not stopped */
+    HAL_SPDIFRX_ErrorCallback(hspdif);
+  }
+
+  /* SPDIFRX Parity error interrupt occurred ---------------------------------*/
+  if((__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_PERR) != RESET) && (__HAL_SPDIFRX_GET_IT_SOURCE(hspdif, SPDIFRX_IT_PERRIE) != RESET))
+  {
+    __HAL_SPDIFRX_CLEAR_IT(hspdif, SPDIFRX_FLAG_PERR);
+
+    /* Change the SPDIFRX error code */
+    hspdif->ErrorCode |= HAL_SPDIFRX_ERROR_PE;
+
+    /* the transfer is not stopped */
+    HAL_SPDIFRX_ErrorCallback(hspdif);
+  } 
+}
+
+/**
+  * @brief Rx Transfer (Data flow) half completed callbacks
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+__weak void HAL_SPDIFRX_RxHalfCpltCallback(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hspdif);
+  /* NOTE : This function Should not be modified, when the callback is needed,
+            the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file
+   */
+}
+
+/**
+  * @brief Rx Transfer (Data flow) completed callbacks
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+__weak void HAL_SPDIFRX_RxCpltCallback(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hspdif);
+  /* NOTE : This function Should not be modified, when the callback is needed,
+            the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file
+   */
+}
+
+/**
+  * @brief Rx (Control flow) Transfer half completed callbacks
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+__weak void HAL_SPDIFRX_CxHalfCpltCallback(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hspdif);
+  /* NOTE : This function Should not be modified, when the callback is needed,
+            the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file
+   */
+}
+
+/**
+  * @brief Rx Transfer (Control flow) completed callbacks
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+__weak void HAL_SPDIFRX_CxCpltCallback(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hspdif);
+  /* NOTE : This function Should not be modified, when the callback is needed,
+            the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file
+   */
+}
+
+/**
+  * @brief SPDIFRX error callbacks
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+__weak void HAL_SPDIFRX_ErrorCallback(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hspdif);
+  /* NOTE : This function Should not be modified, when the callback is needed,
+            the HAL_SPDIFRX_ErrorCallback could be implemented in the user file
+   */
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup SPDIFRX_Exported_Functions_Group3 Peripheral State and Errors functions
+  *  @brief   Peripheral State functions
+  *
+@verbatim
+===============================================================================
+              ##### Peripheral State and Errors functions #####
+===============================================================================
+[..]
+     This subsection permit to get in run-time the status of the peripheral
+     and the data flow.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Return the SPDIFRX state
+  * @param  hspdif  SPDIFRX handle
+  * @retval HAL state
+  */
+HAL_SPDIFRX_StateTypeDef HAL_SPDIFRX_GetState(SPDIFRX_HandleTypeDef *hspdif)
+{
+  return hspdif->State;
+}
+
+/**
+  * @brief  Return the SPDIFRX error code
+  * @param  hspdif  SPDIFRX handle
+  * @retval SPDIFRX Error Code
+  */
+uint32_t HAL_SPDIFRX_GetError(SPDIFRX_HandleTypeDef *hspdif)
+{
+  return hspdif->ErrorCode;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @brief DMA SPDIFRX receive process (Data flow) complete callback
+  * @param hdma  DMA handle
+  * @retval None
+  */
+static void SPDIFRX_DMARxCplt(DMA_HandleTypeDef *hdma)
+{
+  SPDIFRX_HandleTypeDef* hspdif = ( SPDIFRX_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+  /* Disable Rx DMA Request */
+  hspdif->Instance->CR &= (uint16_t)(~SPDIFRX_CR_RXDMAEN);
+  hspdif->RxXferCount = 0U;
+
+  hspdif->State = HAL_SPDIFRX_STATE_READY;
+  HAL_SPDIFRX_RxCpltCallback(hspdif);
+}
+
+/**
+  * @brief DMA SPDIFRX receive process (Data flow) half complete callback
+  * @param hdma  DMA handle
+  * @retval None
+  */
+static void SPDIFRX_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
+{
+  SPDIFRX_HandleTypeDef* hspdif = (SPDIFRX_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
+
+  HAL_SPDIFRX_RxHalfCpltCallback(hspdif);
+}
+
+/**
+  * @brief DMA SPDIFRX receive process (Control flow) complete callback
+  * @param hdma  DMA handle
+  * @retval None
+  */
+static void SPDIFRX_DMACxCplt(DMA_HandleTypeDef *hdma)
+{
+  SPDIFRX_HandleTypeDef* hspdif = ( SPDIFRX_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+  /* Disable Cb DMA Request */
+  hspdif->Instance->CR &= (uint16_t)(~SPDIFRX_CR_CBDMAEN);
+  hspdif->CsXferCount = 0U;
+
+  hspdif->State = HAL_SPDIFRX_STATE_READY;
+  HAL_SPDIFRX_CxCpltCallback(hspdif);
+}
+
+/**
+  * @brief DMA SPDIFRX receive process (Control flow) half complete callback
+  * @param hdma  DMA handle
+  * @retval None
+  */
+static void SPDIFRX_DMACxHalfCplt(DMA_HandleTypeDef *hdma)
+{
+  SPDIFRX_HandleTypeDef* hspdif = (SPDIFRX_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
+
+  HAL_SPDIFRX_CxHalfCpltCallback(hspdif);
+}
+
+/**
+  * @brief DMA SPDIFRX communication error callback
+  * @param hdma  DMA handle
+  * @retval None
+  */
+static void SPDIFRX_DMAError(DMA_HandleTypeDef *hdma)
+{
+  SPDIFRX_HandleTypeDef* hspdif = ( SPDIFRX_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+  /* Disable Rx and Cb DMA Request */
+  hspdif->Instance->CR &= (uint16_t)(~(SPDIFRX_CR_RXDMAEN | SPDIFRX_CR_CBDMAEN));
+  hspdif->RxXferCount = 0U;
+
+  hspdif->State= HAL_SPDIFRX_STATE_READY;
+
+  /* Set the error code and execute error callback*/
+  hspdif->ErrorCode |= HAL_SPDIFRX_ERROR_DMA;
+  HAL_SPDIFRX_ErrorCallback(hspdif);
+}
+
+/**
+  * @brief Receive an amount of data (Data Flow) with Interrupt
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+static void SPDIFRX_ReceiveDataFlow_IT(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Receive data */
+  (*hspdif->pRxBuffPtr++) = hspdif->Instance->DR;
+  hspdif->RxXferCount--;
+
+  if(hspdif->RxXferCount == 0U)
+  {
+    /* Disable RXNE/PE and OVR interrupts */
+    __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE | SPDIFRX_IT_PERRIE | SPDIFRX_IT_RXNE);
+
+    hspdif->State = HAL_SPDIFRX_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hspdif);
+
+    HAL_SPDIFRX_RxCpltCallback(hspdif);
+  }
+}
+
+/**
+  * @brief Receive an amount of data (Control Flow) with Interrupt
+  * @param hspdif SPDIFRX handle
+  * @retval None
+  */
+static void SPDIFRX_ReceiveControlFlow_IT(SPDIFRX_HandleTypeDef *hspdif)
+{
+  /* Receive data */
+  (*hspdif->pCsBuffPtr++) = hspdif->Instance->CSR;
+  hspdif->CsXferCount--;
+
+  if(hspdif->CsXferCount == 0U)
+  {
+    /* Disable CSRNE interrupt */
+    __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE);
+
+    hspdif->State = HAL_SPDIFRX_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hspdif);
+
+    HAL_SPDIFRX_CxCpltCallback(hspdif);
+  }
+}
+
+/**
+  * @brief This function handles SPDIFRX Communication Timeout.
+  * @param hspdif SPDIFRX handle
+  * @param Flag Flag checked
+  * @param Status Value of the flag expected
+  * @param Timeout Duration of the timeout
+  * @retval HAL status
+  */
+static HAL_StatusTypeDef SPDIFRX_WaitOnFlagUntilTimeout(SPDIFRX_HandleTypeDef *hspdif, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
+{
+  uint32_t tickstart = 0U;
+
+  /* Get tick */
+  tickstart = HAL_GetTick();
+
+  /* Wait until flag is set */
+  if(Status == RESET)
+  {
+    while(__HAL_SPDIFRX_GET_FLAG(hspdif, Flag) == RESET)
+    {
+      /* Check for the Timeout */
+      if(Timeout != HAL_MAX_DELAY)
+      {
+        if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout))
+        {
+          /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE);
+
+          hspdif->State= HAL_SPDIFRX_STATE_READY;
+
+          /* Process Unlocked */
+          __HAL_UNLOCK(hspdif);
+
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+  }
+  else
+  {
+    while(__HAL_SPDIFRX_GET_FLAG(hspdif, Flag) != RESET)
+    {
+      /* Check for the Timeout */
+      if(Timeout != HAL_MAX_DELAY)
+      {
+        if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout))
+        {
+          /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE);
+          __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE);
+
+          hspdif->State= HAL_SPDIFRX_STATE_READY;
+
+          /* Process Unlocked */
+          __HAL_UNLOCK(hspdif);
+
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+  }
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+#endif /* STM32F446xx */
+
+#endif /* HAL_SPDIFRX_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+