view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c @ 710:8adf9b8fc7fa

Extension scrubber time: In previous version only one scrubber timer was available. After movement of scruvver timer menu menu space became available allowing to upgrade the functionality to support two scrubbers. To make it easier to identify combination ID to used scrubber the date of the last usage of the scrubber timer has been added.
author Ideenmodellierer
date Tue, 08 Nov 2022 21:16:17 +0100
parents c78bcbd5deda
children
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/**
  ******************************************************************************
  * @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****/