1 files changed, 997 insertions, 1001 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_cec.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_cec.c
index 8ae1bfd6b6..9e17a0988c 100644
--- a/bsps/arm/stm32h7/hal/stm32h7xx_hal_cec.c
+++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_cec.c
@@ -1,1008 +1,1004 @@
-/**
-  ******************************************************************************
-  * @file    stm32h7xx_hal_cec.c
-  * @author  MCD Application Team
-  * @brief   CEC HAL module driver.
-  *          This file provides firmware functions to manage the following
-  *          functionalities of the High Definition Multimedia Interface
-  *          Consumer Electronics Control Peripheral (CEC).
-  *           + Initialization and de-initialization function
-  *           + IO operation function
-  *           + Peripheral Control function
-  *
-  *
-  @verbatim
- ===============================================================================
-                        ##### How to use this driver #####
- ===============================================================================
-    [..]
-    The CEC HAL driver can be used as follow:
-
-    (#) Declare a CEC_HandleTypeDef handle structure.
-    (#) Initialize the CEC low level resources by implementing the HAL_CEC_MspInit ()API:
-        (##) Enable the CEC interface clock.
-        (##) CEC pins configuration:
-            (+++) Enable the clock for the CEC GPIOs.
-            (+++) Configure these CEC pins as alternate function pull-up.
-        (##) NVIC configuration if you need to use interrupt process (HAL_CEC_Transmit_IT()
-             and HAL_CEC_Receive_IT() APIs):
-            (+++) Configure the CEC interrupt priority.
-            (+++) Enable the NVIC CEC IRQ handle.
-            (+++) The specific CEC interrupts (Transmission complete interrupt,
-                  RXNE interrupt and Error Interrupts) will be managed using the macros
-                  __HAL_CEC_ENABLE_IT() and __HAL_CEC_DISABLE_IT() inside the transmit
-                  and receive process.
-
-    (#) Program the Signal Free Time (SFT) and SFT option, Tolerance, reception stop in
-        in case of Bit Rising Error, Error-Bit generation conditions, device logical
-        address and Listen mode in the hcec Init structure.
-
-    (#) Initialize the CEC registers by calling the HAL_CEC_Init() API.
-
-  [..]
-    (@) This API (HAL_CEC_Init()) configures also the low level Hardware (GPIO, CLOCK, CORTEX...etc)
-        by calling the customed HAL_CEC_MspInit() API.
-  *** Callback registration ***
-  =============================================
-
-  The compilation define  USE_HAL_CEC_REGISTER_CALLBACKS when set to 1
-  allows the user to configure dynamically the driver callbacks.
-  Use Functions @ref HAL_CEC_RegisterCallback() or HAL_CEC_RegisterXXXCallback()
-  to register an interrupt callback.
-
-  Function @ref HAL_CEC_RegisterCallback() allows to register following callbacks:
-    (+) TxCpltCallback     : Tx Transfer completed callback.
-    (+) ErrorCallback      : callback for error detection.
-    (+) MspInitCallback    : CEC MspInit.
-    (+) MspDeInitCallback  : CEC MspDeInit.
-  This function takes as parameters the HAL peripheral handle, the Callback ID
-  and a pointer to the user callback function.
-
-  For specific callback HAL_CEC_RxCpltCallback use dedicated register callbacks
-  @ref HAL_CEC_RegisterRxCpltCallback().
-
-  Use function @ref HAL_CEC_UnRegisterCallback() to reset a callback to the default
-  weak function.
-  @ref HAL_CEC_UnRegisterCallback() takes as parameters the HAL peripheral handle,
-  and the Callback ID.
-  This function allows to reset following callbacks:
-    (+) TxCpltCallback     : Tx Transfer completed callback.
-    (+) ErrorCallback      : callback for error detection.
-    (+) MspInitCallback    : CEC MspInit.
-    (+) MspDeInitCallback  : CEC MspDeInit.
-
-  For callback HAL_CEC_RxCpltCallback use dedicated unregister callback :
-  @ref HAL_CEC_UnRegisterRxCpltCallback().
-
-  By default, after the @ref HAL_CEC_Init() and when the state is HAL_CEC_STATE_RESET
-  all callbacks are set to the corresponding weak functions :
-  examples @ref HAL_CEC_TxCpltCallback() , @ref HAL_CEC_RxCpltCallback().
-  Exception done for MspInit and MspDeInit functions that are
-  reset to the legacy weak function in the @ref HAL_CEC_Init()/ @ref HAL_CEC_DeInit() only when
-  these callbacks are null (not registered beforehand).
-  if not, MspInit or MspDeInit are not null, the @ref HAL_CEC_Init() / @ref HAL_CEC_DeInit()
-  keep and use the user MspInit/MspDeInit functions (registered beforehand)
-
-  Callbacks can be registered/unregistered in HAL_CEC_STATE_READY state only.
-  Exception done MspInit/MspDeInit callbacks that can be registered/unregistered
-  in HAL_CEC_STATE_READY or HAL_CEC_STATE_RESET state,
-  thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit.
-  In that case first register the MspInit/MspDeInit user callbacks
-  using @ref HAL_CEC_RegisterCallback() before calling @ref HAL_CEC_DeInit()
-  or @ref HAL_CEC_Init() function.
-
-  When the compilation define USE_HAL_CEC_REGISTER_CALLBACKS is set to 0 or
-  not defined, the callback registration feature is not available and all callbacks
-  are set to the corresponding weak functions.
-  @endverbatim
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
-  * All rights reserved.</center></h2>
-  *
-  * This software component is licensed by ST under BSD 3-Clause license,
-  * the "License"; You may not use this file except in compliance with the
-  * License. You may obtain a copy of the License at:
-  *                        opensource.org/licenses/BSD-3-Clause
-  *
-  ******************************************************************************
-  */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32h7xx_hal.h"
-
-/** @addtogroup STM32H7xx_HAL_Driver
-  * @{
-  */
-
-/** @defgroup CEC CEC
+/**
+  ******************************************************************************
+  * @file    stm32h7xx_hal_cec.c
+  * @author  MCD Application Team
+  * @brief   CEC HAL module driver.
+  *          This file provides firmware functions to manage the following
+  *          functionalities of the High Definition Multimedia Interface
+  *          Consumer Electronics Control Peripheral (CEC).
+  *           + Initialization and de-initialization function
+  *           + IO operation function
+  *           + Peripheral Control function
+  *
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2017 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  @verbatim
+ ===============================================================================
+                        ##### How to use this driver #####
+ ===============================================================================
+    [..]
+    The CEC HAL driver can be used as follow:
+
+    (#) Declare a CEC_HandleTypeDef handle structure.
+    (#) Initialize the CEC low level resources by implementing the HAL_CEC_MspInit ()API:
+        (##) Enable the CEC interface clock.
+        (##) CEC pins configuration:
+            (+++) Enable the clock for the CEC GPIOs.
+            (+++) Configure these CEC pins as alternate function pull-up.
+        (##) NVIC configuration if you need to use interrupt process (HAL_CEC_Transmit_IT()
+             and HAL_CEC_Receive_IT() APIs):
+            (+++) Configure the CEC interrupt priority.
+            (+++) Enable the NVIC CEC IRQ handle.
+            (+++) The specific CEC interrupts (Transmission complete interrupt,
+                  RXNE interrupt and Error Interrupts) will be managed using the macros
+                  __HAL_CEC_ENABLE_IT() and __HAL_CEC_DISABLE_IT() inside the transmit
+                  and receive process.
+
+    (#) Program the Signal Free Time (SFT) and SFT option, Tolerance, reception stop in
+        in case of Bit Rising Error, Error-Bit generation conditions, device logical
+        address and Listen mode in the hcec Init structure.
+
+    (#) Initialize the CEC registers by calling the HAL_CEC_Init() API.
+
+  [..]
+    (@) This API (HAL_CEC_Init()) configures also the low level Hardware (GPIO, CLOCK, CORTEX...etc)
+        by calling the customed HAL_CEC_MspInit() API.
+  *** Callback registration ***
+  =============================================
+
+  The compilation define  USE_HAL_CEC_REGISTER_CALLBACKS when set to 1
+  allows the user to configure dynamically the driver callbacks.
+  Use Functions HAL_CEC_RegisterCallback() or HAL_CEC_RegisterXXXCallback()
+  to register an interrupt callback.
+
+  Function HAL_CEC_RegisterCallback() allows to register following callbacks:
+    (+) TxCpltCallback     : Tx Transfer completed callback.
+    (+) ErrorCallback      : callback for error detection.
+    (+) MspInitCallback    : CEC MspInit.
+    (+) MspDeInitCallback  : CEC MspDeInit.
+  This function takes as parameters the HAL peripheral handle, the Callback ID
+  and a pointer to the user callback function.
+
+  For specific callback HAL_CEC_RxCpltCallback use dedicated register callbacks
+  HAL_CEC_RegisterRxCpltCallback().
+
+  Use function HAL_CEC_UnRegisterCallback() to reset a callback to the default
+  weak function.
+  HAL_CEC_UnRegisterCallback() takes as parameters the HAL peripheral handle,
+  and the Callback ID.
+  This function allows to reset following callbacks:
+    (+) TxCpltCallback     : Tx Transfer completed callback.
+    (+) ErrorCallback      : callback for error detection.
+    (+) MspInitCallback    : CEC MspInit.
+    (+) MspDeInitCallback  : CEC MspDeInit.
+
+  For callback HAL_CEC_RxCpltCallback use dedicated unregister callback :
+  HAL_CEC_UnRegisterRxCpltCallback().
+
+  By default, after the HAL_CEC_Init() and when the state is HAL_CEC_STATE_RESET
+  all callbacks are set to the corresponding weak functions :
+  examples HAL_CEC_TxCpltCallback() , HAL_CEC_RxCpltCallback().
+  Exception done for MspInit and MspDeInit functions that are
+  reset to the legacy weak function in the HAL_CEC_Init()/ HAL_CEC_DeInit() only when
+  these callbacks are null (not registered beforehand).
+  if not, MspInit or MspDeInit are not null, the HAL_CEC_Init() / HAL_CEC_DeInit()
+  keep and use the user MspInit/MspDeInit functions (registered beforehand)
+
+  Callbacks can be registered/unregistered in HAL_CEC_STATE_READY state only.
+  Exception done MspInit/MspDeInit callbacks that can be registered/unregistered
+  in HAL_CEC_STATE_READY or HAL_CEC_STATE_RESET state,
+  thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit.
+  In that case first register the MspInit/MspDeInit user callbacks
+  using HAL_CEC_RegisterCallback() before calling HAL_CEC_DeInit()
+  or HAL_CEC_Init() function.
+
+  When the compilation define USE_HAL_CEC_REGISTER_CALLBACKS is set to 0 or
+  not defined, the callback registration feature is not available and all callbacks
+  are set to the corresponding weak functions.
+  @endverbatim
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_hal.h"
+
+/** @addtogroup STM32H7xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup CEC CEC
   * @ingroup RTEMSBSPsARMSTM32H7
-  * @brief HAL CEC module driver
-  * @{
-  */
-#ifdef HAL_CEC_MODULE_ENABLED
-#if defined (CEC)
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/** @defgroup CEC_Private_Constants CEC Private Constants
+  * @brief HAL CEC module driver
+  * @{
+  */
+#ifdef HAL_CEC_MODULE_ENABLED
+#if defined (CEC)
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup CEC_Private_Constants CEC Private Constants
   * @ingroup RTEMSBSPsARMSTM32H7
-  * @{
-  */
-/**
-  * @}
-  */
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/** @defgroup CEC_Private_Functions CEC Private Functions
+  * @{
+  */
+/**
+  * @}
+  */
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @defgroup CEC_Private_Functions CEC Private Functions
   * @ingroup RTEMSBSPsARMSTM32H7
-  * @{
-  */
-/**
-  * @}
-  */
-
-/* Exported functions ---------------------------------------------------------*/
-
-/** @defgroup CEC_Exported_Functions CEC Exported Functions
+  * @{
+  */
+/**
+  * @}
+  */
+
+/* Exported functions ---------------------------------------------------------*/
+
+/** @defgroup CEC_Exported_Functions CEC Exported Functions
   * @ingroup RTEMSBSPsARMSTM32H7
-  * @{
-  */
-
-/** @defgroup CEC_Exported_Functions_Group1 Initialization and de-initialization functions
+  * @{
+  */
+
+/** @defgroup CEC_Exported_Functions_Group1 Initialization and de-initialization functions
   * @ingroup RTEMSBSPsARMSTM32H7
-  *  @brief    Initialization and Configuration functions
-  *
-@verbatim
-===============================================================================
-            ##### Initialization and Configuration functions #####
- ===============================================================================
-    [..]
-    This subsection provides a set of functions allowing to initialize the CEC
-      (+) The following parameters need to be configured:
-        (++) SignalFreeTime
-        (++) Tolerance
-        (++) BRERxStop                 (RX stopped or not upon Bit Rising Error)
-        (++) BREErrorBitGen            (Error-Bit generation in case of Bit Rising Error)
-        (++) LBPEErrorBitGen           (Error-Bit generation in case of Long Bit Period Error)
-        (++) BroadcastMsgNoErrorBitGen (Error-bit generation in case of broadcast message error)
-        (++) SignalFreeTimeOption      (SFT Timer start definition)
-        (++) OwnAddress                (CEC device address)
-        (++) ListenMode
-
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief Initializes the CEC mode according to the specified
-  *         parameters in the CEC_InitTypeDef and creates the associated handle .
-  * @param hcec CEC handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_CEC_Init(CEC_HandleTypeDef *hcec)
-{
-  /* Check the CEC handle allocation */
-  if ((hcec == NULL) || (hcec->Init.RxBuffer == NULL))
-  {
-    return HAL_ERROR;
-  }
-
-  /* Check the parameters */
-  assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance));
-  assert_param(IS_CEC_SIGNALFREETIME(hcec->Init.SignalFreeTime));
-  assert_param(IS_CEC_TOLERANCE(hcec->Init.Tolerance));
-  assert_param(IS_CEC_BRERXSTOP(hcec->Init.BRERxStop));
-  assert_param(IS_CEC_BREERRORBITGEN(hcec->Init.BREErrorBitGen));
-  assert_param(IS_CEC_LBPEERRORBITGEN(hcec->Init.LBPEErrorBitGen));
-  assert_param(IS_CEC_BROADCASTERROR_NO_ERRORBIT_GENERATION(hcec->Init.BroadcastMsgNoErrorBitGen));
-  assert_param(IS_CEC_SFTOP(hcec->Init.SignalFreeTimeOption));
-  assert_param(IS_CEC_LISTENING_MODE(hcec->Init.ListenMode));
-  assert_param(IS_CEC_OWN_ADDRESS(hcec->Init.OwnAddress));
-
-#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1)
-  if (hcec->gState == HAL_CEC_STATE_RESET)
-  {
-    /* Allocate lock resource and initialize it */
-    hcec->Lock = HAL_UNLOCKED;
-
-    hcec->TxCpltCallback  = HAL_CEC_TxCpltCallback;  /* Legacy weak TxCpltCallback  */
-    hcec->RxCpltCallback = HAL_CEC_RxCpltCallback;   /* Legacy weak RxCpltCallback */
-    hcec->ErrorCallback = HAL_CEC_ErrorCallback;     /* Legacy weak ErrorCallback */
-
-    if (hcec->MspInitCallback == NULL)
-    {
-      hcec->MspInitCallback = HAL_CEC_MspInit; /* Legacy weak MspInit  */
-    }
-
-    /* Init the low level hardware */
-    hcec->MspInitCallback(hcec);
-  }
-#else
-  if (hcec->gState == HAL_CEC_STATE_RESET)
-  {
-    /* Allocate lock resource and initialize it */
-    hcec->Lock = HAL_UNLOCKED;
-    /* Init the low level hardware : GPIO, CLOCK */
-    HAL_CEC_MspInit(hcec);
-  }
-#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
-
-  hcec->gState = HAL_CEC_STATE_BUSY;
-
-  /* Disable the Peripheral */
-  __HAL_CEC_DISABLE(hcec);
-
-  /* Write to CEC Control Register */
-  hcec->Instance->CFGR = hcec->Init.SignalFreeTime | hcec->Init.Tolerance | hcec->Init.BRERxStop | \
-                         hcec->Init.BREErrorBitGen | hcec->Init.LBPEErrorBitGen | hcec->Init.BroadcastMsgNoErrorBitGen | \
-                         hcec->Init.SignalFreeTimeOption | ((uint32_t)(hcec->Init.OwnAddress) << 16U) | \
-                         hcec->Init.ListenMode;
-
-  /* Enable the following CEC Transmission/Reception interrupts as
-    * well as the following CEC Transmission/Reception Errors interrupts
-    * Rx Byte Received IT
-    * End of Reception IT
-    * Rx overrun
-    * Rx bit rising error
-    * Rx short bit period error
-    * Rx long bit period error
-    * Rx missing acknowledge
-    * Tx Byte Request IT
-    * End of Transmission IT
-    * Tx Missing Acknowledge IT
-    * Tx-Error IT
-    * Tx-Buffer Underrun IT
-    * Tx arbitration lost   */
-  __HAL_CEC_ENABLE_IT(hcec, CEC_IT_RXBR | CEC_IT_RXEND | CEC_IER_RX_ALL_ERR | CEC_IT_TXBR | CEC_IT_TXEND |
-                      CEC_IER_TX_ALL_ERR);
-
-  /* Enable the CEC Peripheral */
-  __HAL_CEC_ENABLE(hcec);
-
-  hcec->ErrorCode = HAL_CEC_ERROR_NONE;
-  hcec->gState = HAL_CEC_STATE_READY;
-  hcec->RxState = HAL_CEC_STATE_READY;
-
-  return HAL_OK;
-}
-
-/**
-  * @brief DeInitializes the CEC peripheral
-  * @param hcec CEC handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_CEC_DeInit(CEC_HandleTypeDef *hcec)
-{
-  /* Check the CEC handle allocation */
-  if (hcec == NULL)
-  {
-    return HAL_ERROR;
-  }
-
-  /* Check the parameters */
-  assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance));
-
-  hcec->gState = HAL_CEC_STATE_BUSY;
-
-#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1)
-  if (hcec->MspDeInitCallback == NULL)
-  {
-    hcec->MspDeInitCallback = HAL_CEC_MspDeInit; /* Legacy weak MspDeInit  */
-  }
-
-  /* DeInit the low level hardware */
-  hcec->MspDeInitCallback(hcec);
-
-#else
-  /* DeInit the low level hardware */
-  HAL_CEC_MspDeInit(hcec);
-#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
-
-  /* Disable the Peripheral */
-  __HAL_CEC_DISABLE(hcec);
-
-  /* Clear Flags */
-  __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_TXEND | CEC_FLAG_TXBR | CEC_FLAG_RXBR | CEC_FLAG_RXEND | CEC_ISR_ALL_ERROR);
-
-  /* Disable the following CEC Transmission/Reception interrupts as
-    * well as the following CEC Transmission/Reception Errors interrupts
-    * Rx Byte Received IT
-    * End of Reception IT
-    * Rx overrun
-    * Rx bit rising error
-    * Rx short bit period error
-    * Rx long bit period error
-    * Rx missing acknowledge
-    * Tx Byte Request IT
-    * End of Transmission IT
-    * Tx Missing Acknowledge IT
-    * Tx-Error IT
-    * Tx-Buffer Underrun IT
-    * Tx arbitration lost   */
-  __HAL_CEC_DISABLE_IT(hcec, CEC_IT_RXBR | CEC_IT_RXEND | CEC_IER_RX_ALL_ERR | CEC_IT_TXBR | CEC_IT_TXEND |
-                       CEC_IER_TX_ALL_ERR);
-
-  hcec->ErrorCode = HAL_CEC_ERROR_NONE;
-  hcec->gState = HAL_CEC_STATE_RESET;
-  hcec->RxState = HAL_CEC_STATE_RESET;
-
-  /* Process Unlock */
-  __HAL_UNLOCK(hcec);
-
-  return HAL_OK;
-}
-
-/**
-  * @brief Initializes the Own Address of the CEC device
-  * @param hcec CEC handle
-  * @param  CEC_OwnAddress The CEC own address.
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_CEC_SetDeviceAddress(CEC_HandleTypeDef *hcec, uint16_t CEC_OwnAddress)
-{
-  /* Check the parameters */
-  assert_param(IS_CEC_OWN_ADDRESS(CEC_OwnAddress));
-
-  if ((hcec->gState == HAL_CEC_STATE_READY) && (hcec->RxState == HAL_CEC_STATE_READY))
-  {
-    /* Process Locked */
-    __HAL_LOCK(hcec);
-
-    hcec->gState = HAL_CEC_STATE_BUSY;
-
-    /* Disable the Peripheral */
-    __HAL_CEC_DISABLE(hcec);
-
-    if (CEC_OwnAddress != CEC_OWN_ADDRESS_NONE)
-    {
-      hcec->Instance->CFGR |= ((uint32_t)CEC_OwnAddress << 16);
-    }
-    else
-    {
-      hcec->Instance->CFGR &= ~(CEC_CFGR_OAR);
-    }
-
-    hcec->gState = HAL_CEC_STATE_READY;
-    hcec->ErrorCode = HAL_CEC_ERROR_NONE;
-
-    /* Process Unlocked */
-    __HAL_UNLOCK(hcec);
-
-    /* Enable the Peripheral */
-    __HAL_CEC_ENABLE(hcec);
-
-    return  HAL_OK;
-  }
-  else
-  {
-    return HAL_BUSY;
-  }
-}
-
-/**
-  * @brief CEC MSP Init
-  * @param hcec CEC handle
-  * @retval None
-  */
-__weak void HAL_CEC_MspInit(CEC_HandleTypeDef *hcec)
-{
-  /* Prevent unused argument(s) compilation warning */
-  UNUSED(hcec);
-  /* NOTE : This function should not be modified, when the callback is needed,
-            the HAL_CEC_MspInit can be implemented in the user file
-   */
-}
-
-/**
-  * @brief CEC MSP DeInit
-  * @param hcec CEC handle
-  * @retval None
-  */
-__weak void HAL_CEC_MspDeInit(CEC_HandleTypeDef *hcec)
-{
-  /* Prevent unused argument(s) compilation warning */
-  UNUSED(hcec);
-  /* NOTE : This function should not be modified, when the callback is needed,
-            the HAL_CEC_MspDeInit can be implemented in the user file
-   */
-}
-#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1)
-/**
-  * @brief  Register a User CEC Callback
-  *         To be used instead of the weak predefined callback
-  * @param  hcec CEC handle
-  * @param  CallbackID ID of the callback to be registered
-  *         This parameter can be one of the following values:
-  *          @arg @ref HAL_CEC_TX_CPLT_CB_ID Tx Complete callback ID
-  *          @arg @ref HAL_CEC_ERROR_CB_ID Error callback ID
-  *          @arg @ref HAL_CEC_MSPINIT_CB_ID MspInit callback ID
-  *          @arg @ref HAL_CEC_MSPDEINIT_CB_ID MspDeInit callback ID
-  * @param  pCallback pointer to the Callback function
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_CEC_RegisterCallback(CEC_HandleTypeDef *hcec, HAL_CEC_CallbackIDTypeDef CallbackID,
-                                           pCEC_CallbackTypeDef pCallback)
-{
-  HAL_StatusTypeDef status = HAL_OK;
-
-  if (pCallback == NULL)
-  {
-    /* Update the error code */
-    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-    return HAL_ERROR;
-  }
-  /* Process locked */
-  __HAL_LOCK(hcec);
-
-  if (hcec->gState == HAL_CEC_STATE_READY)
-  {
-    switch (CallbackID)
-    {
-      case HAL_CEC_TX_CPLT_CB_ID :
-        hcec->TxCpltCallback = pCallback;
-        break;
-
-      case HAL_CEC_ERROR_CB_ID :
-        hcec->ErrorCallback = pCallback;
-        break;
-
-      case HAL_CEC_MSPINIT_CB_ID :
-        hcec->MspInitCallback = pCallback;
-        break;
-
-      case HAL_CEC_MSPDEINIT_CB_ID :
-        hcec->MspDeInitCallback = pCallback;
-        break;
-
-      default :
-        /* Update the error code */
-        hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-        /* Return error status */
-        status =  HAL_ERROR;
-        break;
-    }
-  }
-  else if (hcec->gState == HAL_CEC_STATE_RESET)
-  {
-    switch (CallbackID)
-    {
-      case HAL_CEC_MSPINIT_CB_ID :
-        hcec->MspInitCallback = pCallback;
-        break;
-
-      case HAL_CEC_MSPDEINIT_CB_ID :
-        hcec->MspDeInitCallback = pCallback;
-        break;
-
-      default :
-        /* Update the error code */
-        hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-        /* Return error status */
-        status =  HAL_ERROR;
-        break;
-    }
-  }
-  else
-  {
-    /* Update the error code */
-    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-    /* Return error status */
-    status =  HAL_ERROR;
-  }
-
-  /* Release Lock */
-  __HAL_UNLOCK(hcec);
-
-  return status;
-}
-
-/**
-  * @brief  Unregister an CEC Callback
-  *         CEC callabck is redirected to the weak predefined callback
-  * @param hcec uart handle
-  * @param CallbackID ID of the callback to be unregistered
-  *         This parameter can be one of the following values:
-  *          @arg @ref HAL_CEC_TX_CPLT_CB_ID Tx Complete callback ID
-  *          @arg @ref HAL_CEC_ERROR_CB_ID Error callback ID
-  *          @arg @ref HAL_CEC_MSPINIT_CB_ID MspInit callback ID
-  *          @arg @ref HAL_CEC_MSPDEINIT_CB_ID MspDeInit callback ID
-  * @retval status
-  */
-HAL_StatusTypeDef HAL_CEC_UnRegisterCallback(CEC_HandleTypeDef *hcec, HAL_CEC_CallbackIDTypeDef CallbackID)
-{
-  HAL_StatusTypeDef status = HAL_OK;
-
-  /* Process locked */
-  __HAL_LOCK(hcec);
-
-  if (hcec->gState == HAL_CEC_STATE_READY)
-  {
-    switch (CallbackID)
-    {
-      case HAL_CEC_TX_CPLT_CB_ID :
-        hcec->TxCpltCallback = HAL_CEC_TxCpltCallback;  /* Legacy weak  TxCpltCallback */
-        break;
-
-      case HAL_CEC_ERROR_CB_ID :
-        hcec->ErrorCallback = HAL_CEC_ErrorCallback;  /* Legacy weak ErrorCallback   */
-        break;
-
-      case HAL_CEC_MSPINIT_CB_ID :
-        hcec->MspInitCallback = HAL_CEC_MspInit;
-        break;
-
-      case HAL_CEC_MSPDEINIT_CB_ID :
-        hcec->MspDeInitCallback = HAL_CEC_MspDeInit;
-        break;
-
-      default :
-        /* Update the error code */
-        hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-        /* Return error status */
-        status =  HAL_ERROR;
-        break;
-    }
-  }
-  else if (hcec->gState == HAL_CEC_STATE_RESET)
-  {
-    switch (CallbackID)
-    {
-      case HAL_CEC_MSPINIT_CB_ID :
-        hcec->MspInitCallback = HAL_CEC_MspInit;
-        break;
-
-      case HAL_CEC_MSPDEINIT_CB_ID :
-        hcec->MspDeInitCallback = HAL_CEC_MspDeInit;
-        break;
-
-      default :
-        /* Update the error code */
-        hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-        /* Return error status */
-        status =  HAL_ERROR;
-        break;
-    }
-  }
-  else
-  {
-    /* Update the error code */
-    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-    /* Return error status */
-    status =  HAL_ERROR;
-  }
-
-  /* Release Lock */
-  __HAL_UNLOCK(hcec);
-
-  return status;
-}
-
-/**
-  * @brief  Register CEC RX complete Callback
-  *         To be used instead of the weak HAL_CEC_RxCpltCallback() predefined callback
-  * @param  hcec CEC handle
-  * @param  pCallback pointer to the Rx transfer compelete Callback function
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_CEC_RegisterRxCpltCallback(CEC_HandleTypeDef *hcec, pCEC_RxCallbackTypeDef pCallback)
-{
-  HAL_StatusTypeDef status = HAL_OK;
-
-  if (pCallback == NULL)
-  {
-    /* Update the error code */
-    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-    return HAL_ERROR;
-  }
-  /* Process locked */
-  __HAL_LOCK(hcec);
-
-  if (HAL_CEC_STATE_READY == hcec->RxState)
-  {
-    hcec->RxCpltCallback = pCallback;
-  }
-  else
-  {
-    /* Update the error code */
-    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-    /* Return error status */
-    status =  HAL_ERROR;
-  }
-
-  /* Release Lock */
-  __HAL_UNLOCK(hcec);
-  return status;
-}
-
-/**
-  * @brief  UnRegister CEC RX complete Callback
-  *         CEC RX complete Callback is redirected to the weak HAL_CEC_RxCpltCallback() predefined callback
-  * @param  hcec CEC handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_CEC_UnRegisterRxCpltCallback(CEC_HandleTypeDef *hcec)
-{
-  HAL_StatusTypeDef status = HAL_OK;
-
-  /* Process locked */
-  __HAL_LOCK(hcec);
-
-  if (HAL_CEC_STATE_READY == hcec->RxState)
-  {
-    hcec->RxCpltCallback = HAL_CEC_RxCpltCallback; /* Legacy weak  CEC RxCpltCallback  */
-  }
-  else
-  {
-    /* Update the error code */
-    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
-    /* Return error status */
-    status =  HAL_ERROR;
-  }
-
-  /* Release Lock */
-  __HAL_UNLOCK(hcec);
-  return status;
-}
-#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
-
-/**
-  * @}
-  */
-
-/** @defgroup CEC_Exported_Functions_Group2 Input and Output operation functions
+  *  @brief    Initialization and Configuration functions
+  *
+@verbatim
+===============================================================================
+            ##### Initialization and Configuration functions #####
+ ===============================================================================
+    [..]
+    This subsection provides a set of functions allowing to initialize the CEC
+      (+) The following parameters need to be configured:
+        (++) SignalFreeTime
+        (++) Tolerance
+        (++) BRERxStop                 (RX stopped or not upon Bit Rising Error)
+        (++) BREErrorBitGen            (Error-Bit generation in case of Bit Rising Error)
+        (++) LBPEErrorBitGen           (Error-Bit generation in case of Long Bit Period Error)
+        (++) BroadcastMsgNoErrorBitGen (Error-bit generation in case of broadcast message error)
+        (++) SignalFreeTimeOption      (SFT Timer start definition)
+        (++) OwnAddress                (CEC device address)
+        (++) ListenMode
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief Initializes the CEC mode according to the specified
+  *         parameters in the CEC_InitTypeDef and creates the associated handle .
+  * @param hcec CEC handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CEC_Init(CEC_HandleTypeDef *hcec)
+{
+  /* Check the CEC handle allocation */
+  if ((hcec == NULL) || (hcec->Init.RxBuffer == NULL))
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the parameters */
+  assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance));
+  assert_param(IS_CEC_SIGNALFREETIME(hcec->Init.SignalFreeTime));
+  assert_param(IS_CEC_TOLERANCE(hcec->Init.Tolerance));
+  assert_param(IS_CEC_BRERXSTOP(hcec->Init.BRERxStop));
+  assert_param(IS_CEC_BREERRORBITGEN(hcec->Init.BREErrorBitGen));
+  assert_param(IS_CEC_LBPEERRORBITGEN(hcec->Init.LBPEErrorBitGen));
+  assert_param(IS_CEC_BROADCASTERROR_NO_ERRORBIT_GENERATION(hcec->Init.BroadcastMsgNoErrorBitGen));
+  assert_param(IS_CEC_SFTOP(hcec->Init.SignalFreeTimeOption));
+  assert_param(IS_CEC_LISTENING_MODE(hcec->Init.ListenMode));
+  assert_param(IS_CEC_OWN_ADDRESS(hcec->Init.OwnAddress));
+
+#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1)
+  if (hcec->gState == HAL_CEC_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    hcec->Lock = HAL_UNLOCKED;
+
+    hcec->TxCpltCallback  = HAL_CEC_TxCpltCallback;  /* Legacy weak TxCpltCallback  */
+    hcec->RxCpltCallback = HAL_CEC_RxCpltCallback;   /* Legacy weak RxCpltCallback */
+    hcec->ErrorCallback = HAL_CEC_ErrorCallback;     /* Legacy weak ErrorCallback */
+
+    if (hcec->MspInitCallback == NULL)
+    {
+      hcec->MspInitCallback = HAL_CEC_MspInit; /* Legacy weak MspInit  */
+    }
+
+    /* Init the low level hardware */
+    hcec->MspInitCallback(hcec);
+  }
+#else
+  if (hcec->gState == HAL_CEC_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    hcec->Lock = HAL_UNLOCKED;
+    /* Init the low level hardware : GPIO, CLOCK */
+    HAL_CEC_MspInit(hcec);
+  }
+#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
+
+  hcec->gState = HAL_CEC_STATE_BUSY;
+
+  /* Disable the Peripheral */
+  __HAL_CEC_DISABLE(hcec);
+
+  /* Write to CEC Control Register */
+  hcec->Instance->CFGR = hcec->Init.SignalFreeTime | hcec->Init.Tolerance | hcec->Init.BRERxStop | \
+                         hcec->Init.BREErrorBitGen | hcec->Init.LBPEErrorBitGen | \
+                         hcec->Init.BroadcastMsgNoErrorBitGen | \
+                         hcec->Init.SignalFreeTimeOption | ((uint32_t)(hcec->Init.OwnAddress) << 16U) | \
+                         hcec->Init.ListenMode;
+
+  /* Enable the following CEC Transmission/Reception interrupts as
+    * well as the following CEC Transmission/Reception Errors interrupts
+    * Rx Byte Received IT
+    * End of Reception IT
+    * Rx overrun
+    * Rx bit rising error
+    * Rx short bit period error
+    * Rx long bit period error
+    * Rx missing acknowledge
+    * Tx Byte Request IT
+    * End of Transmission IT
+    * Tx Missing Acknowledge IT
+    * Tx-Error IT
+    * Tx-Buffer Underrun IT
+    * Tx arbitration lost   */
+  __HAL_CEC_ENABLE_IT(hcec, CEC_IT_RXBR | CEC_IT_RXEND | CEC_IER_RX_ALL_ERR | CEC_IT_TXBR | CEC_IT_TXEND |
+                      CEC_IER_TX_ALL_ERR);
+
+  /* Enable the CEC Peripheral */
+  __HAL_CEC_ENABLE(hcec);
+
+  hcec->ErrorCode = HAL_CEC_ERROR_NONE;
+  hcec->gState = HAL_CEC_STATE_READY;
+  hcec->RxState = HAL_CEC_STATE_READY;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief DeInitializes the CEC peripheral
+  * @param hcec CEC handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CEC_DeInit(CEC_HandleTypeDef *hcec)
+{
+  /* Check the CEC handle allocation */
+  if (hcec == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the parameters */
+  assert_param(IS_CEC_ALL_INSTANCE(hcec->Instance));
+
+  hcec->gState = HAL_CEC_STATE_BUSY;
+
+#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1)
+  if (hcec->MspDeInitCallback == NULL)
+  {
+    hcec->MspDeInitCallback = HAL_CEC_MspDeInit; /* Legacy weak MspDeInit  */
+  }
+
+  /* DeInit the low level hardware */
+  hcec->MspDeInitCallback(hcec);
+
+#else
+  /* DeInit the low level hardware */
+  HAL_CEC_MspDeInit(hcec);
+#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
+
+  /* Disable the Peripheral */
+  __HAL_CEC_DISABLE(hcec);
+
+  /* Clear Flags */
+  __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_TXEND | CEC_FLAG_TXBR | CEC_FLAG_RXBR | CEC_FLAG_RXEND | CEC_ISR_ALL_ERROR);
+
+  /* Disable the following CEC Transmission/Reception interrupts as
+    * well as the following CEC Transmission/Reception Errors interrupts
+    * Rx Byte Received IT
+    * End of Reception IT
+    * Rx overrun
+    * Rx bit rising error
+    * Rx short bit period error
+    * Rx long bit period error
+    * Rx missing acknowledge
+    * Tx Byte Request IT
+    * End of Transmission IT
+    * Tx Missing Acknowledge IT
+    * Tx-Error IT
+    * Tx-Buffer Underrun IT
+    * Tx arbitration lost   */
+  __HAL_CEC_DISABLE_IT(hcec, CEC_IT_RXBR | CEC_IT_RXEND | CEC_IER_RX_ALL_ERR | CEC_IT_TXBR | CEC_IT_TXEND |
+                       CEC_IER_TX_ALL_ERR);
+
+  hcec->ErrorCode = HAL_CEC_ERROR_NONE;
+  hcec->gState = HAL_CEC_STATE_RESET;
+  hcec->RxState = HAL_CEC_STATE_RESET;
+
+  /* Process Unlock */
+  __HAL_UNLOCK(hcec);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief Initializes the Own Address of the CEC device
+  * @param hcec CEC handle
+  * @param  CEC_OwnAddress The CEC own address.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CEC_SetDeviceAddress(CEC_HandleTypeDef *hcec, uint16_t CEC_OwnAddress)
+{
+  /* Check the parameters */
+  assert_param(IS_CEC_OWN_ADDRESS(CEC_OwnAddress));
+
+  if ((hcec->gState == HAL_CEC_STATE_READY) && (hcec->RxState == HAL_CEC_STATE_READY))
+  {
+    /* Process Locked */
+    __HAL_LOCK(hcec);
+
+    hcec->gState = HAL_CEC_STATE_BUSY;
+
+    /* Disable the Peripheral */
+    __HAL_CEC_DISABLE(hcec);
+
+    if (CEC_OwnAddress != CEC_OWN_ADDRESS_NONE)
+    {
+      hcec->Instance->CFGR |= ((uint32_t)CEC_OwnAddress << 16);
+    }
+    else
+    {
+      hcec->Instance->CFGR &= ~(CEC_CFGR_OAR);
+    }
+
+    hcec->gState = HAL_CEC_STATE_READY;
+    hcec->ErrorCode = HAL_CEC_ERROR_NONE;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hcec);
+
+    /* Enable the Peripheral */
+    __HAL_CEC_ENABLE(hcec);
+
+    return  HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief CEC MSP Init
+  * @param hcec CEC handle
+  * @retval None
+  */
+__weak void HAL_CEC_MspInit(CEC_HandleTypeDef *hcec)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hcec);
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_CEC_MspInit can be implemented in the user file
+   */
+}
+
+/**
+  * @brief CEC MSP DeInit
+  * @param hcec CEC handle
+  * @retval None
+  */
+__weak void HAL_CEC_MspDeInit(CEC_HandleTypeDef *hcec)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hcec);
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_CEC_MspDeInit can be implemented in the user file
+   */
+}
+#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1)
+/**
+  * @brief  Register a User CEC Callback
+  *         To be used instead of the weak predefined callback
+  * @param  hcec CEC handle
+  * @param  CallbackID ID of the callback to be registered
+  *         This parameter can be one of the following values:
+  *          @arg HAL_CEC_TX_CPLT_CB_ID Tx Complete callback ID
+  *          @arg HAL_CEC_ERROR_CB_ID Error callback ID
+  *          @arg HAL_CEC_MSPINIT_CB_ID MspInit callback ID
+  *          @arg HAL_CEC_MSPDEINIT_CB_ID MspDeInit callback ID
+  * @param  pCallback pointer to the Callback function
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CEC_RegisterCallback(CEC_HandleTypeDef *hcec, HAL_CEC_CallbackIDTypeDef CallbackID,
+                                           pCEC_CallbackTypeDef pCallback)
+{
+  HAL_StatusTypeDef status = HAL_OK;
+
+  if (pCallback == NULL)
+  {
+    /* Update the error code */
+    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+    return HAL_ERROR;
+  }
+  /* Process locked */
+  __HAL_LOCK(hcec);
+
+  if (hcec->gState == HAL_CEC_STATE_READY)
+  {
+    switch (CallbackID)
+    {
+      case HAL_CEC_TX_CPLT_CB_ID :
+        hcec->TxCpltCallback = pCallback;
+        break;
+
+      case HAL_CEC_ERROR_CB_ID :
+        hcec->ErrorCallback = pCallback;
+        break;
+
+      case HAL_CEC_MSPINIT_CB_ID :
+        hcec->MspInitCallback = pCallback;
+        break;
+
+      case HAL_CEC_MSPDEINIT_CB_ID :
+        hcec->MspDeInitCallback = pCallback;
+        break;
+
+      default :
+        /* Update the error code */
+        hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+        /* Return error status */
+        status =  HAL_ERROR;
+        break;
+    }
+  }
+  else if (hcec->gState == HAL_CEC_STATE_RESET)
+  {
+    switch (CallbackID)
+    {
+      case HAL_CEC_MSPINIT_CB_ID :
+        hcec->MspInitCallback = pCallback;
+        break;
+
+      case HAL_CEC_MSPDEINIT_CB_ID :
+        hcec->MspDeInitCallback = pCallback;
+        break;
+
+      default :
+        /* Update the error code */
+        hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+        /* Return error status */
+        status =  HAL_ERROR;
+        break;
+    }
+  }
+  else
+  {
+    /* Update the error code */
+    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+    /* Return error status */
+    status =  HAL_ERROR;
+  }
+
+  /* Release Lock */
+  __HAL_UNLOCK(hcec);
+
+  return status;
+}
+
+/**
+  * @brief  Unregister an CEC Callback
+  *         CEC callback is redirected to the weak predefined callback
+  * @param hcec uart handle
+  * @param CallbackID ID of the callback to be unregistered
+  *         This parameter can be one of the following values:
+  *          @arg HAL_CEC_TX_CPLT_CB_ID Tx Complete callback ID
+  *          @arg HAL_CEC_ERROR_CB_ID Error callback ID
+  *          @arg HAL_CEC_MSPINIT_CB_ID MspInit callback ID
+  *          @arg HAL_CEC_MSPDEINIT_CB_ID MspDeInit callback ID
+  * @retval status
+  */
+HAL_StatusTypeDef HAL_CEC_UnRegisterCallback(CEC_HandleTypeDef *hcec, HAL_CEC_CallbackIDTypeDef CallbackID)
+{
+  HAL_StatusTypeDef status = HAL_OK;
+
+  /* Process locked */
+  __HAL_LOCK(hcec);
+
+  if (hcec->gState == HAL_CEC_STATE_READY)
+  {
+    switch (CallbackID)
+    {
+      case HAL_CEC_TX_CPLT_CB_ID :
+        hcec->TxCpltCallback = HAL_CEC_TxCpltCallback;  /* Legacy weak  TxCpltCallback */
+        break;
+
+      case HAL_CEC_ERROR_CB_ID :
+        hcec->ErrorCallback = HAL_CEC_ErrorCallback;  /* Legacy weak ErrorCallback   */
+        break;
+
+      case HAL_CEC_MSPINIT_CB_ID :
+        hcec->MspInitCallback = HAL_CEC_MspInit;
+        break;
+
+      case HAL_CEC_MSPDEINIT_CB_ID :
+        hcec->MspDeInitCallback = HAL_CEC_MspDeInit;
+        break;
+
+      default :
+        /* Update the error code */
+        hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+        /* Return error status */
+        status =  HAL_ERROR;
+        break;
+    }
+  }
+  else if (hcec->gState == HAL_CEC_STATE_RESET)
+  {
+    switch (CallbackID)
+    {
+      case HAL_CEC_MSPINIT_CB_ID :
+        hcec->MspInitCallback = HAL_CEC_MspInit;
+        break;
+
+      case HAL_CEC_MSPDEINIT_CB_ID :
+        hcec->MspDeInitCallback = HAL_CEC_MspDeInit;
+        break;
+
+      default :
+        /* Update the error code */
+        hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+        /* Return error status */
+        status =  HAL_ERROR;
+        break;
+    }
+  }
+  else
+  {
+    /* Update the error code */
+    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+    /* Return error status */
+    status =  HAL_ERROR;
+  }
+
+  /* Release Lock */
+  __HAL_UNLOCK(hcec);
+
+  return status;
+}
+
+/**
+  * @brief  Register CEC RX complete Callback
+  *         To be used instead of the weak HAL_CEC_RxCpltCallback() predefined callback
+  * @param  hcec CEC handle
+  * @param  pCallback pointer to the Rx transfer compelete Callback function
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CEC_RegisterRxCpltCallback(CEC_HandleTypeDef *hcec, pCEC_RxCallbackTypeDef pCallback)
+{
+  HAL_StatusTypeDef status = HAL_OK;
+
+  if (pCallback == NULL)
+  {
+    /* Update the error code */
+    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+    return HAL_ERROR;
+  }
+  /* Process locked */
+  __HAL_LOCK(hcec);
+
+  if (HAL_CEC_STATE_READY == hcec->RxState)
+  {
+    hcec->RxCpltCallback = pCallback;
+  }
+  else
+  {
+    /* Update the error code */
+    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+    /* Return error status */
+    status =  HAL_ERROR;
+  }
+
+  /* Release Lock */
+  __HAL_UNLOCK(hcec);
+  return status;
+}
+
+/**
+  * @brief  UnRegister CEC RX complete Callback
+  *         CEC RX complete Callback is redirected to the weak HAL_CEC_RxCpltCallback() predefined callback
+  * @param  hcec CEC handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CEC_UnRegisterRxCpltCallback(CEC_HandleTypeDef *hcec)
+{
+  HAL_StatusTypeDef status = HAL_OK;
+
+  /* Process locked */
+  __HAL_LOCK(hcec);
+
+  if (HAL_CEC_STATE_READY == hcec->RxState)
+  {
+    hcec->RxCpltCallback = HAL_CEC_RxCpltCallback; /* Legacy weak  CEC RxCpltCallback  */
+  }
+  else
+  {
+    /* Update the error code */
+    hcec->ErrorCode |= HAL_CEC_ERROR_INVALID_CALLBACK;
+    /* Return error status */
+    status =  HAL_ERROR;
+  }
+
+  /* Release Lock */
+  __HAL_UNLOCK(hcec);
+  return status;
+}
+#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
+
+/**
+  * @}
+  */
+
+/** @defgroup CEC_Exported_Functions_Group2 Input and Output operation functions
   * @ingroup RTEMSBSPsARMSTM32H7
-  *  @brief CEC Transmit/Receive functions
-  *
-@verbatim
- ===============================================================================
-                      ##### IO operation functions #####
- ===============================================================================
-    This subsection provides a set of functions allowing to manage the CEC data transfers.
-
-    (#) The CEC handle must contain the initiator (TX side) and the destination (RX side)
-        logical addresses (4-bit long addresses, 0xF for broadcast messages destination)
-
-    (#) The communication is performed using Interrupts.
-           These API's return the HAL status.
-           The end of the data processing will be indicated through the
-           dedicated CEC IRQ when using Interrupt mode.
-           The HAL_CEC_TxCpltCallback(), HAL_CEC_RxCpltCallback() user callbacks
-           will be executed respectively at the end of the transmit or Receive process
-           The HAL_CEC_ErrorCallback() user callback will be executed when a communication
-           error is detected
-
-    (#) API's with Interrupt are :
-         (+) HAL_CEC_Transmit_IT()
-         (+) HAL_CEC_IRQHandler()
-
-    (#) A set of User Callbacks are provided:
-         (+) HAL_CEC_TxCpltCallback()
-         (+) HAL_CEC_RxCpltCallback()
-         (+) HAL_CEC_ErrorCallback()
-
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief Send data in interrupt mode
-  * @param hcec CEC handle
-  * @param InitiatorAddress Initiator address
-  * @param DestinationAddress destination logical address
-  * @param pData pointer to input byte data buffer
-  * @param Size amount of data to be sent in bytes (without counting the header).
-  *              0 means only the header is sent (ping operation).
-  *              Maximum TX size is 15 bytes (1 opcode and up to 14 operands).
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_CEC_Transmit_IT(CEC_HandleTypeDef *hcec, uint8_t InitiatorAddress, uint8_t DestinationAddress,
-                                      uint8_t *pData, uint32_t Size)
-{
-  /* if the IP isn't already busy and if there is no previous transmission
-     already pending due to arbitration lost */
-  if (hcec->gState == HAL_CEC_STATE_READY)
-  {
-    if ((pData == NULL) && (Size > 0U))
-    {
-      return  HAL_ERROR;
-    }
-
-    assert_param(IS_CEC_ADDRESS(DestinationAddress));
-    assert_param(IS_CEC_ADDRESS(InitiatorAddress));
-    assert_param(IS_CEC_MSGSIZE(Size));
-
-    /* Process Locked */
-    __HAL_LOCK(hcec);
-    hcec->pTxBuffPtr = pData;
-    hcec->gState = HAL_CEC_STATE_BUSY_TX;
-    hcec->ErrorCode = HAL_CEC_ERROR_NONE;
-
-    /* initialize the number of bytes to send,
-      * 0 means only one header is sent (ping operation) */
-    hcec->TxXferCount = (uint16_t)Size;
-
-    /* in case of no payload (Size = 0), sender is only pinging the system;
-       Set TX End of Message (TXEOM) bit, must be set before writing data to TXDR */
-    if (Size == 0U)
-    {
-      __HAL_CEC_LAST_BYTE_TX_SET(hcec);
-    }
-
-    /* send header block */
-    hcec->Instance->TXDR = (uint32_t)(((uint32_t)InitiatorAddress << CEC_INITIATOR_LSB_POS) | DestinationAddress);
-
-    /* Set TX Start of Message  (TXSOM) bit */
-    __HAL_CEC_FIRST_BYTE_TX_SET(hcec);
-
-    /* Process Unlocked */
-    __HAL_UNLOCK(hcec);
-
-    return HAL_OK;
-
-  }
-  else
-  {
-    return HAL_BUSY;
-  }
-}
-
-/**
-  * @brief Get size of the received frame.
-  * @param hcec CEC handle
-  * @retval Frame size
-  */
-uint32_t HAL_CEC_GetLastReceivedFrameSize(CEC_HandleTypeDef *hcec)
-{
-  return hcec->RxXferSize;
-}
-
-/**
-  * @brief Change Rx Buffer.
-  * @param hcec CEC handle
-  * @param Rxbuffer Rx Buffer
-  * @note  This function can be called only inside the HAL_CEC_RxCpltCallback()
-  * @retval Frame size
-  */
-void HAL_CEC_ChangeRxBuffer(CEC_HandleTypeDef *hcec, uint8_t *Rxbuffer)
-{
-  hcec->Init.RxBuffer = Rxbuffer;
-}
-
-/**
-  * @brief This function handles CEC interrupt requests.
-  * @param hcec CEC handle
-  * @retval None
-  */
-void HAL_CEC_IRQHandler(CEC_HandleTypeDef *hcec)
-{
-
-  /* save interrupts register for further error or interrupts handling purposes */
-  uint32_t reg;
-  reg = hcec->Instance->ISR;
-
-
-  /* ----------------------------Arbitration Lost Management----------------------------------*/
-  /* CEC TX arbitration error interrupt occurred --------------------------------------*/
-  if ((reg & CEC_FLAG_ARBLST) != 0U)
-  {
-    hcec->ErrorCode = HAL_CEC_ERROR_ARBLST;
-    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_ARBLST);
-  }
-
-  /* ----------------------------Rx Management----------------------------------*/
-  /* CEC RX byte received interrupt  ---------------------------------------------------*/
-  if ((reg & CEC_FLAG_RXBR) != 0U)
-  {
-    /* reception is starting */
-    hcec->RxState = HAL_CEC_STATE_BUSY_RX;
-    hcec->RxXferSize++;
-    /* read received byte */
-    *hcec->Init.RxBuffer = (uint8_t) hcec->Instance->RXDR;
-    hcec->Init.RxBuffer++;
-    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_RXBR);
-  }
-
-  /* CEC RX end received interrupt  ---------------------------------------------------*/
-  if ((reg & CEC_FLAG_RXEND) != 0U)
-  {
-    /* clear IT */
-    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_RXEND);
-
-    /* Rx process is completed, restore hcec->RxState to Ready */
-    hcec->RxState = HAL_CEC_STATE_READY;
-    hcec->ErrorCode = HAL_CEC_ERROR_NONE;
-    hcec->Init.RxBuffer -= hcec->RxXferSize;
-#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1U)
-    hcec->RxCpltCallback(hcec, hcec->RxXferSize);
-#else
-    HAL_CEC_RxCpltCallback(hcec, hcec->RxXferSize);
-#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
-    hcec->RxXferSize = 0U;
-  }
-
-  /* ----------------------------Tx Management----------------------------------*/
-  /* CEC TX byte request interrupt ------------------------------------------------*/
-  if ((reg & CEC_FLAG_TXBR) != 0U)
-  {
-    if (hcec->TxXferCount == 0U)
-    {
-      /* if this is the last byte transmission, set TX End of Message (TXEOM) bit */
-      __HAL_CEC_LAST_BYTE_TX_SET(hcec);
-      hcec->Instance->TXDR = *hcec->pTxBuffPtr;
-      hcec->pTxBuffPtr++;
-    }
-    else
-    {
-      hcec->Instance->TXDR = *hcec->pTxBuffPtr;
-      hcec->pTxBuffPtr++;
-      hcec->TxXferCount--;
-    }
-    /* clear Tx-Byte request flag */
-    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_TXBR);
-  }
-
-  /* CEC TX end interrupt ------------------------------------------------*/
-  if ((reg & CEC_FLAG_TXEND) != 0U)
-  {
-    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_TXEND);
-
-    /* Tx process is ended, restore hcec->gState to Ready */
-    hcec->gState = HAL_CEC_STATE_READY;
-    /* Call the Process Unlocked before calling the Tx call back API to give the possibility to
-    start again the Transmission under the Tx call back API */
-    __HAL_UNLOCK(hcec);
-    hcec->ErrorCode = HAL_CEC_ERROR_NONE;
-#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1U)
-    hcec->TxCpltCallback(hcec);
-#else
-    HAL_CEC_TxCpltCallback(hcec);
-#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
-  }
-
-  /* ----------------------------Rx/Tx Error Management----------------------------------*/
-  if ((reg & (CEC_ISR_RXOVR | CEC_ISR_BRE | CEC_ISR_SBPE | CEC_ISR_LBPE | CEC_ISR_RXACKE | CEC_ISR_TXUDR | CEC_ISR_TXERR |
-              CEC_ISR_TXACKE)) != 0U)
-  {
-    hcec->ErrorCode = reg;
-    __HAL_CEC_CLEAR_FLAG(hcec, HAL_CEC_ERROR_RXOVR | HAL_CEC_ERROR_BRE | CEC_FLAG_LBPE | CEC_FLAG_SBPE |
-                         HAL_CEC_ERROR_RXACKE | HAL_CEC_ERROR_TXUDR | HAL_CEC_ERROR_TXERR | HAL_CEC_ERROR_TXACKE);
-
-
-    if ((reg & (CEC_ISR_RXOVR | CEC_ISR_BRE | CEC_ISR_SBPE | CEC_ISR_LBPE | CEC_ISR_RXACKE)) != 0U)
-    {
-      hcec->Init.RxBuffer -= hcec->RxXferSize;
-      hcec->RxXferSize = 0U;
-      hcec->RxState = HAL_CEC_STATE_READY;
-    }
-    else if (((reg & CEC_ISR_ARBLST) == 0U) && ((reg & (CEC_ISR_TXUDR | CEC_ISR_TXERR | CEC_ISR_TXACKE)) != 0U))
-    {
-      /* Set the CEC state ready to be able to start again the process */
-      hcec->gState = HAL_CEC_STATE_READY;
-    }
-    else
-    {
-      /* Nothing todo*/
-    }
-#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1U)
-    hcec->ErrorCallback(hcec);
-#else
-    /* Error  Call Back */
-    HAL_CEC_ErrorCallback(hcec);
-#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
-  }
-  else
-  {
-    /* Nothing todo*/
-  }
-}
-
-/**
-  * @brief Tx Transfer completed callback
-  * @param hcec CEC handle
-  * @retval None
-  */
-__weak void HAL_CEC_TxCpltCallback(CEC_HandleTypeDef *hcec)
-{
-  /* Prevent unused argument(s) compilation warning */
-  UNUSED(hcec);
-  /* NOTE : This function should not be modified, when the callback is needed,
-            the HAL_CEC_TxCpltCallback can be implemented in the user file
-   */
-}
-
-/**
-  * @brief Rx Transfer completed callback
-  * @param hcec CEC handle
-  * @param RxFrameSize Size of frame
-  * @retval None
-  */
-__weak void HAL_CEC_RxCpltCallback(CEC_HandleTypeDef *hcec, uint32_t RxFrameSize)
-{
-  /* Prevent unused argument(s) compilation warning */
-  UNUSED(hcec);
-  UNUSED(RxFrameSize);
-  /* NOTE : This function should not be modified, when the callback is needed,
-            the HAL_CEC_RxCpltCallback can be implemented in the user file
-   */
-}
-
-/**
-  * @brief CEC error callbacks
-  * @param hcec CEC handle
-  * @retval None
-  */
-__weak void HAL_CEC_ErrorCallback(CEC_HandleTypeDef *hcec)
-{
-  /* Prevent unused argument(s) compilation warning */
-  UNUSED(hcec);
-  /* NOTE : This function should not be modified, when the callback is needed,
-            the HAL_CEC_ErrorCallback can be implemented in the user file
-   */
-}
-/**
-  * @}
-  */
-
-/** @defgroup CEC_Exported_Functions_Group3 Peripheral Control function
+  *  @brief CEC Transmit/Receive functions
+  *
+@verbatim
+ ===============================================================================
+                      ##### IO operation functions #####
+ ===============================================================================
+    This subsection provides a set of functions allowing to manage the CEC data transfers.
+
+    (#) The CEC handle must contain the initiator (TX side) and the destination (RX side)
+        logical addresses (4-bit long addresses, 0xF for broadcast messages destination)
+
+    (#) The communication is performed using Interrupts.
+           These API's return the HAL status.
+           The end of the data processing will be indicated through the
+           dedicated CEC IRQ when using Interrupt mode.
+           The HAL_CEC_TxCpltCallback(), HAL_CEC_RxCpltCallback() user callbacks
+           will be executed respectively at the end of the transmit or Receive process
+           The HAL_CEC_ErrorCallback() user callback will be executed when a communication
+           error is detected
+
+    (#) API's with Interrupt are :
+         (+) HAL_CEC_Transmit_IT()
+         (+) HAL_CEC_IRQHandler()
+
+    (#) A set of User Callbacks are provided:
+         (+) HAL_CEC_TxCpltCallback()
+         (+) HAL_CEC_RxCpltCallback()
+         (+) HAL_CEC_ErrorCallback()
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief Send data in interrupt mode
+  * @param hcec CEC handle
+  * @param InitiatorAddress Initiator address
+  * @param DestinationAddress destination logical address
+  * @param pData pointer to input byte data buffer
+  * @param Size amount of data to be sent in bytes (without counting the header).
+  *              0 means only the header is sent (ping operation).
+  *              Maximum TX size is 15 bytes (1 opcode and up to 14 operands).
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CEC_Transmit_IT(CEC_HandleTypeDef *hcec, uint8_t InitiatorAddress, uint8_t DestinationAddress,
+                                      const uint8_t *pData, uint32_t Size)
+{
+  /* if the peripheral isn't already busy and if there is no previous transmission
+     already pending due to arbitration lost */
+  if (hcec->gState == HAL_CEC_STATE_READY)
+  {
+    if ((pData == NULL) && (Size > 0U))
+    {
+      return  HAL_ERROR;
+    }
+
+    assert_param(IS_CEC_ADDRESS(DestinationAddress));
+    assert_param(IS_CEC_ADDRESS(InitiatorAddress));
+    assert_param(IS_CEC_MSGSIZE(Size));
+
+    /* Process Locked */
+    __HAL_LOCK(hcec);
+    hcec->pTxBuffPtr = pData;
+    hcec->gState = HAL_CEC_STATE_BUSY_TX;
+    hcec->ErrorCode = HAL_CEC_ERROR_NONE;
+
+    /* initialize the number of bytes to send,
+      * 0 means only one header is sent (ping operation) */
+    hcec->TxXferCount = (uint16_t)Size;
+
+    /* in case of no payload (Size = 0), sender is only pinging the system;
+       Set TX End of Message (TXEOM) bit, must be set before writing data to TXDR */
+    if (Size == 0U)
+    {
+      __HAL_CEC_LAST_BYTE_TX_SET(hcec);
+    }
+
+    /* send header block */
+    hcec->Instance->TXDR = (uint32_t)(((uint32_t)InitiatorAddress << CEC_INITIATOR_LSB_POS) | DestinationAddress);
+
+    /* Set TX Start of Message  (TXSOM) bit */
+    __HAL_CEC_FIRST_BYTE_TX_SET(hcec);
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hcec);
+
+    return HAL_OK;
+
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Get size of the received frame.
+  * @param hcec CEC handle
+  * @retval Frame size
+  */
+uint32_t HAL_CEC_GetLastReceivedFrameSize(const CEC_HandleTypeDef *hcec)
+{
+  return hcec->RxXferSize;
+}
+
+/**
+  * @brief Change Rx Buffer.
+  * @param hcec CEC handle
+  * @param Rxbuffer Rx Buffer
+  * @note  This function can be called only inside the HAL_CEC_RxCpltCallback()
+  * @retval Frame size
+  */
+void HAL_CEC_ChangeRxBuffer(CEC_HandleTypeDef *hcec, uint8_t *Rxbuffer)
+{
+  hcec->Init.RxBuffer = Rxbuffer;
+}
+
+/**
+  * @brief This function handles CEC interrupt requests.
+  * @param hcec CEC handle
+  * @retval None
+  */
+void HAL_CEC_IRQHandler(CEC_HandleTypeDef *hcec)
+{
+
+  /* save interrupts register for further error or interrupts handling purposes */
+  uint32_t itflag;
+  itflag = hcec->Instance->ISR;
+
+
+  /* ----------------------------Arbitration Lost Management----------------------------------*/
+  /* CEC TX arbitration error interrupt occurred --------------------------------------*/
+  if (HAL_IS_BIT_SET(itflag, CEC_FLAG_ARBLST))
+  {
+    hcec->ErrorCode = HAL_CEC_ERROR_ARBLST;
+    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_ARBLST);
+  }
+
+  /* ----------------------------Rx Management----------------------------------*/
+  /* CEC RX byte received interrupt  ---------------------------------------------------*/
+  if (HAL_IS_BIT_SET(itflag, CEC_FLAG_RXBR))
+  {
+    /* reception is starting */
+    hcec->RxState = HAL_CEC_STATE_BUSY_RX;
+    hcec->RxXferSize++;
+    /* read received byte */
+    *hcec->Init.RxBuffer = (uint8_t) hcec->Instance->RXDR;
+    hcec->Init.RxBuffer++;
+    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_RXBR);
+  }
+
+  /* CEC RX end received interrupt  ---------------------------------------------------*/
+  if (HAL_IS_BIT_SET(itflag, CEC_FLAG_RXEND))
+  {
+    /* clear IT */
+    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_RXEND);
+
+    /* Rx process is completed, restore hcec->RxState to Ready */
+    hcec->RxState = HAL_CEC_STATE_READY;
+    hcec->ErrorCode = HAL_CEC_ERROR_NONE;
+    hcec->Init.RxBuffer -= hcec->RxXferSize;
+#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1U)
+    hcec->RxCpltCallback(hcec, hcec->RxXferSize);
+#else
+    HAL_CEC_RxCpltCallback(hcec, hcec->RxXferSize);
+#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
+    hcec->RxXferSize = 0U;
+  }
+
+  /* ----------------------------Tx Management----------------------------------*/
+  /* CEC TX byte request interrupt ------------------------------------------------*/
+  if (HAL_IS_BIT_SET(itflag, CEC_FLAG_TXBR))
+  {
+    --hcec->TxXferCount;
+    if (hcec->TxXferCount == 0U)
+    {
+      /* if this is the last byte transmission, set TX End of Message (TXEOM) bit */
+      __HAL_CEC_LAST_BYTE_TX_SET(hcec);
+    }
+    /* In all cases transmit the byte */
+    hcec->Instance->TXDR = (uint8_t)*hcec->pTxBuffPtr;
+    hcec->pTxBuffPtr++;
+    /* clear Tx-Byte request flag */
+    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_TXBR);
+  }
+
+  /* CEC TX end interrupt ------------------------------------------------*/
+  if (HAL_IS_BIT_SET(itflag, CEC_FLAG_TXEND))
+  {
+    __HAL_CEC_CLEAR_FLAG(hcec, CEC_FLAG_TXEND);
+
+    /* Tx process is ended, restore hcec->gState to Ready */
+    hcec->gState = HAL_CEC_STATE_READY;
+    /* Call the Process Unlocked before calling the Tx call back API to give the possibility to
+    start again the Transmission under the Tx call back API */
+    __HAL_UNLOCK(hcec);
+    hcec->ErrorCode = HAL_CEC_ERROR_NONE;
+#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1U)
+    hcec->TxCpltCallback(hcec);
+#else
+    HAL_CEC_TxCpltCallback(hcec);
+#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
+  }
+
+  /* ----------------------------Rx/Tx Error Management----------------------------------*/
+  if ((itflag & (CEC_ISR_RXOVR | CEC_ISR_BRE | CEC_ISR_SBPE | CEC_ISR_LBPE | CEC_ISR_RXACKE | CEC_ISR_TXUDR |
+              CEC_ISR_TXERR | CEC_ISR_TXACKE)) != 0U)
+  {
+    hcec->ErrorCode = itflag;
+    __HAL_CEC_CLEAR_FLAG(hcec, HAL_CEC_ERROR_RXOVR | HAL_CEC_ERROR_BRE | CEC_FLAG_LBPE | CEC_FLAG_SBPE |
+                         HAL_CEC_ERROR_RXACKE | HAL_CEC_ERROR_TXUDR | HAL_CEC_ERROR_TXERR | HAL_CEC_ERROR_TXACKE);
+
+
+    if ((itflag & (CEC_ISR_RXOVR | CEC_ISR_BRE | CEC_ISR_SBPE | CEC_ISR_LBPE | CEC_ISR_RXACKE)) != 0U)
+    {
+      hcec->Init.RxBuffer -= hcec->RxXferSize;
+      hcec->RxXferSize = 0U;
+      hcec->RxState = HAL_CEC_STATE_READY;
+    }
+    else if (((itflag & CEC_ISR_ARBLST) == 0U) && ((itflag & (CEC_ISR_TXUDR | CEC_ISR_TXERR | CEC_ISR_TXACKE)) != 0U))
+    {
+      /* Set the CEC state ready to be able to start again the process */
+      hcec->gState = HAL_CEC_STATE_READY;
+    }
+    else
+    {
+      /* Nothing todo*/
+    }
+#if (USE_HAL_CEC_REGISTER_CALLBACKS == 1U)
+    hcec->ErrorCallback(hcec);
+#else
+    /* Error  Call Back */
+    HAL_CEC_ErrorCallback(hcec);
+#endif /* USE_HAL_CEC_REGISTER_CALLBACKS */
+  }
+  else
+  {
+    /* Nothing todo*/
+  }
+}
+
+/**
+  * @brief Tx Transfer completed callback
+  * @param hcec CEC handle
+  * @retval None
+  */
+__weak void HAL_CEC_TxCpltCallback(CEC_HandleTypeDef *hcec)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hcec);
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_CEC_TxCpltCallback can be implemented in the user file
+   */
+}
+
+/**
+  * @brief Rx Transfer completed callback
+  * @param hcec CEC handle
+  * @param RxFrameSize Size of frame
+  * @retval None
+  */
+__weak void HAL_CEC_RxCpltCallback(CEC_HandleTypeDef *hcec, uint32_t RxFrameSize)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hcec);
+  UNUSED(RxFrameSize);
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_CEC_RxCpltCallback can be implemented in the user file
+   */
+}
+
+/**
+  * @brief CEC error callbacks
+  * @param hcec CEC handle
+  * @retval None
+  */
+__weak void HAL_CEC_ErrorCallback(CEC_HandleTypeDef *hcec)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hcec);
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_CEC_ErrorCallback can be implemented in the user file
+   */
+}
+/**
+  * @}
+  */
+
+/** @defgroup CEC_Exported_Functions_Group3 Peripheral Control function
   * @ingroup RTEMSBSPsARMSTM32H7
-  *  @brief   CEC control functions
-  *
-@verbatim
- ===============================================================================
-                      ##### Peripheral Control function #####
- ===============================================================================
-    [..]
-    This subsection provides a set of functions allowing to control the CEC.
-     (+) HAL_CEC_GetState() API can be helpful to check in run-time the state of the CEC peripheral.
-     (+) HAL_CEC_GetError() API can be helpful to check in run-time the error of the CEC peripheral.
-@endverbatim
-  * @{
-  */
-/**
-  * @brief return the CEC state
-  * @param hcec pointer to a CEC_HandleTypeDef structure that contains
-  *              the configuration information for the specified CEC module.
-  * @retval HAL state
-  */
-HAL_CEC_StateTypeDef HAL_CEC_GetState(CEC_HandleTypeDef *hcec)
-{
-  uint32_t temp1, temp2;
-  temp1 = hcec->gState;
-  temp2 = hcec->RxState;
-
-  return (HAL_CEC_StateTypeDef)(temp1 | temp2);
-}
-
-/**
-  * @brief  Return the CEC error code
-  * @param  hcec  pointer to a CEC_HandleTypeDef structure that contains
-  *              the configuration information for the specified CEC.
-  * @retval CEC Error Code
-  */
-uint32_t HAL_CEC_GetError(CEC_HandleTypeDef *hcec)
-{
-  return hcec->ErrorCode;
-}
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-#endif /* CEC */
-#endif /* HAL_CEC_MODULE_ENABLED */
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+  *  @brief   CEC control functions
+  *
+@verbatim
+ ===============================================================================
+                      ##### Peripheral Control function #####
+ ===============================================================================
+    [..]
+    This subsection provides a set of functions allowing to control the CEC.
+     (+) HAL_CEC_GetState() API can be helpful to check in run-time the state of the CEC peripheral.
+     (+) HAL_CEC_GetError() API can be helpful to check in run-time the error of the CEC peripheral.
+@endverbatim
+  * @{
+  */
+/**
+  * @brief return the CEC state
+  * @param hcec pointer to a CEC_HandleTypeDef structure that contains
+  *              the configuration information for the specified CEC module.
+  * @retval HAL state
+  */
+HAL_CEC_StateTypeDef HAL_CEC_GetState(const CEC_HandleTypeDef *hcec)
+{
+  uint32_t temp1;
+  uint32_t temp2;
+  temp1 = hcec->gState;
+  temp2 = hcec->RxState;
+
+  return (HAL_CEC_StateTypeDef)(temp1 | temp2);
+}
+
+/**
+  * @brief  Return the CEC error code
+  * @param  hcec  pointer to a CEC_HandleTypeDef structure that contains
+  *              the configuration information for the specified CEC.
+  * @retval CEC Error Code
+  */
+uint32_t HAL_CEC_GetError(const CEC_HandleTypeDef *hcec)
+{
+  return hcec->ErrorCode;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+#endif /* CEC */
+#endif /* HAL_CEC_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */