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Diffstat (limited to 'Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c')
| -rw-r--r-- | Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c | 1210 |
1 files changed, 1210 insertions, 0 deletions
diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c new file mode 100644 index 0000000..87ccfc9 --- /dev/null +++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c @@ -0,0 +1,1210 @@ +/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_spdifrx.c
+ * @author MCD Application Team
+ * @version V1.3.2
+ * @date 26-June-2015
+ * @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 USART 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>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "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 = 0;
+
+ /* 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)
+{
+ /* 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)
+{
+ /* 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 = 0;
+
+ /* 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)
+{
+ 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) != 0x00)
+ {
+ /* Start synchronization */
+ __HAL_SPDIFRX_SYNC(hspdif);
+
+ /* Wait until SYNCD flag is set */
+ if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, SPDIFRX_TIMEOUT_VALUE) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ /* 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)
+{
+ 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) != 0x00)
+ {
+ /* Start synchronization */
+ __HAL_SPDIFRX_SYNC(hspdif);
+
+ /* Wait until SYNCD flag is set */
+ if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, SPDIFRX_TIMEOUT_VALUE) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ /* 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)
+{
+
+ 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) != 0x00)
+ {
+ /* Start synchronization */
+ __HAL_SPDIFRX_SYNC(hspdif);
+
+ /* Wait until SYNCD flag is set */
+ if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, SPDIFRX_TIMEOUT_VALUE) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ /* 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)
+{
+ 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) != 0x00)
+ {
+ /* Start synchronization */
+ __HAL_SPDIFRX_SYNC(hspdif);
+
+ /* Wait until SYNCD flag is set */
+ if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, SPDIFRX_TIMEOUT_VALUE) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ /* 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)
+{
+ /* 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)
+{
+ /* 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)
+{
+ /* 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)
+{
+ /* 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)
+{
+ /* 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 = 0;
+
+ 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 = 0;
+
+ 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 = 0;
+
+ 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 == 0)
+ {
+ /* 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 == 0)
+ {
+ /* 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 = 0;
+
+ /* 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 == 0)||((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 == 0)||((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****/
+
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