| /** |
| ****************************************************************************** |
| * @file stm32f7xx_hal_spdifrx.c |
| * @author MCD Application Team |
| * @brief This file provides firmware functions to manage the following |
| * functionalities of the SPDIFRX audio interface: |
| * + Initialization and Configuration |
| * + Data transfers functions |
| * + DMA transfers management |
| * + Interrupts and flags management |
| @verbatim |
| =============================================================================== |
| ##### How to use this driver ##### |
| =============================================================================== |
| [..] |
| The SPDIFRX HAL driver can be used as follow: |
| |
| (#) Declare SPDIFRX_HandleTypeDef handle structure. |
| (#) Initialize the SPDIFRX low level resources by implement the HAL_SPDIFRX_MspInit() API: |
| (##) Enable the SPDIFRX interface clock. |
| (##) SPDIFRX pins configuration: |
| (+++) Enable the clock for the SPDIFRX GPIOs. |
| (+++) Configure these SPDIFRX pins as alternate function pull-up. |
| (##) NVIC configuration if you need to use interrupt process (HAL_SPDIFRX_ReceiveControlFlow_IT() and HAL_SPDIFRX_ReceiveDataFlow_IT() API's). |
| (+++) Configure the SPDIFRX interrupt priority. |
| (+++) Enable the NVIC SPDIFRX IRQ handle. |
| (##) DMA Configuration if you need to use DMA process (HAL_SPDIFRX_ReceiveDataFlow_DMA() and HAL_SPDIFRX_ReceiveControlFlow_DMA() API's). |
| (+++) Declare a DMA handle structure for the reception of the Data Flow channel. |
| (+++) Declare a DMA handle structure for the reception of the Control Flow channel. |
| (+++) Enable the DMAx interface clock. |
| (+++) Configure the declared DMA handle structure CtrlRx/DataRx with the required parameters. |
| (+++) Configure the DMA Channel. |
| (+++) Associate the initialized DMA handle to the SPDIFRX DMA CtrlRx/DataRx handle. |
| (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the |
| DMA CtrlRx/DataRx channel. |
| |
| (#) Program the input selection, re-tries number, wait for activity, channel status selection, data format, stereo mode and masking of user bits |
| using HAL_SPDIFRX_Init() function. |
| |
| -@- The specific SPDIFRX interrupts (RXNE/CSRNE and Error Interrupts) will be managed using the macros |
| __SPDIFRX_ENABLE_IT() and __SPDIFRX_DISABLE_IT() inside the receive process. |
| -@- Make sure that ck_spdif clock is configured. |
| |
| (#) Three operation modes are available within this driver : |
| |
| *** Polling mode for reception operation (for debug purpose) *** |
| ================================================================ |
| [..] |
| (+) Receive data flow in blocking mode using HAL_SPDIFRX_ReceiveDataFlow() |
| (+) Receive control flow of data in blocking mode using HAL_SPDIFRX_ReceiveControlFlow() |
| |
| *** Interrupt mode for reception operation *** |
| ========================================= |
| [..] |
| (+) Receive an amount of data (Data Flow) in non blocking mode using HAL_SPDIFRX_ReceiveDataFlow_IT() |
| (+) Receive an amount of data (Control Flow) in non blocking mode using HAL_SPDIFRX_ReceiveControlFlow_IT() |
| (+) At reception end of half transfer HAL_SPDIFRX_RxHalfCpltCallback is executed and user can |
| add his own code by customization of function pointer HAL_SPDIFRX_RxHalfCpltCallback |
| (+) At reception end of transfer HAL_SPDIFRX_RxCpltCallback is executed and user can |
| add his own code by customization of function pointer HAL_SPDIFRX_RxCpltCallback |
| (+) In case of transfer Error, HAL_SPDIFRX_ErrorCallback() function is executed and user can |
| add his own code by customization of function pointer HAL_SPDIFRX_ErrorCallback |
| |
| *** DMA mode for reception operation *** |
| ======================================== |
| [..] |
| (+) Receive an amount of data (Data Flow) in non blocking mode (DMA) using HAL_SPDIFRX_ReceiveDataFlow_DMA() |
| (+) Receive an amount of data (Control Flow) in non blocking mode (DMA) using HAL_SPDIFRX_ReceiveControlFlow_DMA() |
| (+) At reception end of half transfer HAL_SPDIFRX_RxHalfCpltCallback is executed and user can |
| add his own code by customization of function pointer HAL_SPDIFRX_RxHalfCpltCallback |
| (+) At reception end of transfer HAL_SPDIFRX_RxCpltCallback is executed and user can |
| add his own code by customization of function pointer HAL_SPDIFRX_RxCpltCallback |
| (+) In case of transfer Error, HAL_SPDIFRX_ErrorCallback() function is executed and user can |
| add his own code by customization of function pointer HAL_SPDIFRX_ErrorCallback |
| (+) Stop the DMA Transfer using HAL_SPDIFRX_DMAStop() |
| |
| *** SPDIFRX HAL driver macros list *** |
| ============================================= |
| [..] |
| Below the list of most used macros in 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) 2017 STMicroelectronics</center></h2> |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f7xx_hal.h" |
| |
| /** @addtogroup STM32F7xx_HAL_Driver |
| * @{ |
| */ |
| /** @defgroup SPDIFRX SPDIFRX |
| * @brief SPDIFRX HAL module driver |
| * @{ |
| */ |
| |
| #ifdef HAL_SPDIFRX_MODULE_ENABLED |
| #if defined (SPDIFRX) |
| |
| /* 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, uint32_t tickstart); |
| /** |
| * @} |
| */ |
| /* 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) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hspdif); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_SPDIFRX_MspInit could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief SPDIFRX MSP DeInit |
| * @param hspdif SPDIFRX handle |
| * @retval None |
| */ |
| __weak void HAL_SPDIFRX_MspDeInit(SPDIFRX_HandleTypeDef *hspdif) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hspdif); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_SPDIFRX_MspDeInit could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Sets the SPDIFRX dtat format according to the specified parameters |
| * in the SPDIFRX_InitTypeDef. |
| * @param hspdif SPDIFRX handle |
| * @param sDataFormat SPDIFRX data format |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_SPDIFRX_SetDataFormat(SPDIFRX_HandleTypeDef *hspdif, SPDIFRX_SetDataFormatTypeDef sDataFormat) |
| { |
| uint32_t tmpreg = 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) |
| { |
| uint32_t tickstart = 0U; |
| |
| if((pData == NULL ) || (Size == 0U)) |
| { |
| 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); |
| |
| /* Get tick */ |
| tickstart = HAL_GetTick(); |
| |
| /* Wait until SYNCD flag is set */ |
| if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, Timeout, tickstart) != HAL_OK) |
| { |
| return HAL_TIMEOUT; |
| } |
| |
| /* Start reception */ |
| __HAL_SPDIFRX_RCV(hspdif); |
| |
| /* Receive data flow */ |
| while(Size > 0U) |
| { |
| /* Get tick */ |
| tickstart = HAL_GetTick(); |
| |
| /* Wait until RXNE flag is set */ |
| if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_RXNE, RESET, Timeout, tickstart) != 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) |
| { |
| uint32_t tickstart = 0U; |
| |
| if((pData == NULL ) || (Size == 0U)) |
| { |
| 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); |
| |
| /* Get tick */ |
| tickstart = HAL_GetTick(); |
| |
| /* Wait until SYNCD flag is set */ |
| if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, Timeout, tickstart) != HAL_OK) |
| { |
| return HAL_TIMEOUT; |
| } |
| |
| /* Start reception */ |
| __HAL_SPDIFRX_RCV(hspdif); |
| |
| /* Receive control flow */ |
| while(Size > 0U) |
| { |
| /* Get tick */ |
| tickstart = HAL_GetTick(); |
| |
| /* Wait until CSRNE flag is set */ |
| if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_CSRNE, RESET, Timeout, tickstart) != 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) |
| { |
| uint32_t tickstart = 0U; |
| |
| if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_CX)) |
| { |
| if((pData == NULL) || (Size == 0U)) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Process Locked */ |
| __HAL_LOCK(hspdif); |
| |
| hspdif->pRxBuffPtr = pData; |
| hspdif->RxXferSize = Size; |
| hspdif->RxXferCount = Size; |
| |
| hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; |
| |
| /* Check if a receive process is ongoing or not */ |
| hspdif->State = HAL_SPDIFRX_STATE_BUSY_RX; |
| |
| |
| /* Enable the SPDIFRX PE Error Interrupt */ |
| __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_PERRIE); |
| |
| /* Enable the SPDIFRX OVR Error Interrupt */ |
| __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_OVRIE); |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hspdif); |
| |
| /* Enable the SPDIFRX RXNE interrupt */ |
| __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_RXNE); |
| |
| if (((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC) || ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U)) |
| { |
| /* Start synchronization */ |
| __HAL_SPDIFRX_SYNC(hspdif); |
| |
| /* Get tick */ |
| tickstart = HAL_GetTick(); |
| |
| /* Wait until SYNCD flag is set */ |
| if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, SPDIFRX_TIMEOUT_VALUE, tickstart) != 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) |
| { |
| uint32_t tickstart = 0U; |
| |
| if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_RX)) |
| { |
| if((pData == NULL ) || (Size == 0U)) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Process Locked */ |
| __HAL_LOCK(hspdif); |
| |
| hspdif->pCsBuffPtr = pData; |
| hspdif->CsXferSize = Size; |
| hspdif->CsXferCount = Size; |
| |
| hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; |
| |
| /* Check if a receive process is ongoing or not */ |
| hspdif->State = HAL_SPDIFRX_STATE_BUSY_CX; |
| |
| |
| /* Enable the SPDIFRX PE Error Interrupt */ |
| __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_PERRIE); |
| |
| /* Enable the SPDIFRX OVR Error Interrupt */ |
| __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_OVRIE); |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hspdif); |
| |
| /* Enable the SPDIFRX CSRNE interrupt */ |
| __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_CSRNE); |
| |
| if (((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC) || ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U)) |
| { |
| /* Start synchronization */ |
| __HAL_SPDIFRX_SYNC(hspdif); |
| |
| /* Get tick */ |
| tickstart = HAL_GetTick(); |
| |
| /* Wait until SYNCD flag is set */ |
| if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, SPDIFRX_TIMEOUT_VALUE, tickstart) != 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) |
| { |
| uint32_t tickstart = 0U; |
| |
| if((pData == NULL) || (Size == 0U)) |
| { |
| return HAL_ERROR; |
| } |
| |
| if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_CX)) |
| { |
| hspdif->pRxBuffPtr = pData; |
| hspdif->RxXferSize = Size; |
| hspdif->RxXferCount = Size; |
| |
| /* Process Locked */ |
| __HAL_LOCK(hspdif); |
| |
| hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; |
| hspdif->State = HAL_SPDIFRX_STATE_BUSY_RX; |
| |
| /* Set the SPDIFRX Rx DMA Half transfer complete callback */ |
| hspdif->hdmaDrRx->XferHalfCpltCallback = SPDIFRX_DMARxHalfCplt; |
| |
| /* Set the SPDIFRX Rx DMA transfer complete callback */ |
| hspdif->hdmaDrRx->XferCpltCallback = SPDIFRX_DMARxCplt; |
| |
| /* Set the DMA error callback */ |
| hspdif->hdmaDrRx->XferErrorCallback = SPDIFRX_DMAError; |
| |
| /* Enable the DMA request */ |
| HAL_DMA_Start_IT(hspdif->hdmaDrRx, (uint32_t)&hspdif->Instance->DR, (uint32_t)hspdif->pRxBuffPtr, Size); |
| |
| /* Enable RXDMAEN bit in SPDIFRX CR register for data flow reception*/ |
| hspdif->Instance->CR |= SPDIFRX_CR_RXDMAEN; |
| |
| if (((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC) || ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U)) |
| { |
| /* Start synchronization */ |
| __HAL_SPDIFRX_SYNC(hspdif); |
| |
| /* Get tick */ |
| tickstart = HAL_GetTick(); |
| |
| /* Wait until SYNCD flag is set */ |
| if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, SPDIFRX_TIMEOUT_VALUE, tickstart) != 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) |
| { |
| uint32_t tickstart = 0U; |
| |
| if((pData == NULL) || (Size == 0U)) |
| { |
| return HAL_ERROR; |
| } |
| |
| if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_RX)) |
| { |
| hspdif->pCsBuffPtr = pData; |
| hspdif->CsXferSize = Size; |
| hspdif->CsXferCount = Size; |
| |
| /* Process Locked */ |
| __HAL_LOCK(hspdif); |
| |
| hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; |
| hspdif->State = HAL_SPDIFRX_STATE_BUSY_CX; |
| |
| /* Set the SPDIFRX Rx DMA Half transfer complete callback */ |
| hspdif->hdmaCsRx->XferHalfCpltCallback = SPDIFRX_DMACxHalfCplt; |
| |
| /* Set the SPDIFRX Rx DMA transfer complete callback */ |
| hspdif->hdmaCsRx->XferCpltCallback = SPDIFRX_DMACxCplt; |
| |
| /* Set the DMA error callback */ |
| hspdif->hdmaCsRx->XferErrorCallback = SPDIFRX_DMAError; |
| |
| /* Enable the DMA request */ |
| HAL_DMA_Start_IT(hspdif->hdmaCsRx, (uint32_t)&hspdif->Instance->CSR, (uint32_t)hspdif->pCsBuffPtr, Size); |
| |
| /* Enable CBDMAEN bit in SPDIFRX CR register for control flow reception*/ |
| hspdif->Instance->CR |= SPDIFRX_CR_CBDMAEN; |
| |
| if (((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC) || ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U)) |
| { |
| /* Start synchronization */ |
| __HAL_SPDIFRX_SYNC(hspdif); |
| |
| /* Get tick */ |
| tickstart = HAL_GetTick(); |
| |
| /* Wait until SYNCD flag is set */ |
| if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, SPDIFRX_TIMEOUT_VALUE, tickstart) != 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) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hspdif); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Rx Transfer (Data flow) completed callbacks |
| * @param hspdif SPDIFRX handle |
| * @retval None |
| */ |
| __weak void HAL_SPDIFRX_RxCpltCallback(SPDIFRX_HandleTypeDef *hspdif) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hspdif); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Rx (Control flow) Transfer half completed callbacks |
| * @param hspdif SPDIFRX handle |
| * @retval None |
| */ |
| __weak void HAL_SPDIFRX_CxHalfCpltCallback(SPDIFRX_HandleTypeDef *hspdif) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hspdif); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Rx Transfer (Control flow) completed callbacks |
| * @param hspdif SPDIFRX handle |
| * @retval None |
| */ |
| __weak void HAL_SPDIFRX_CxCpltCallback(SPDIFRX_HandleTypeDef *hspdif) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hspdif); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief SPDIFRX error callbacks |
| * @param hspdif SPDIFRX handle |
| * @retval None |
| */ |
| __weak void HAL_SPDIFRX_ErrorCallback(SPDIFRX_HandleTypeDef *hspdif) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hspdif); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_SPDIFRX_ErrorCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup SPDIFRX_Exported_Functions_Group3 Peripheral State and Errors functions |
| * @brief Peripheral State functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### Peripheral State and Errors functions ##### |
| =============================================================================== |
| [..] |
| This subsection permit to get in run-time the status of the peripheral |
| and the data flow. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Return the SPDIFRX state |
| * @param hspdif SPDIFRX handle |
| * @retval HAL state |
| */ |
| HAL_SPDIFRX_StateTypeDef HAL_SPDIFRX_GetState(SPDIFRX_HandleTypeDef *hspdif) |
| { |
| return hspdif->State; |
| } |
| |
| /** |
| * @brief Return the SPDIFRX error code |
| * @param hspdif SPDIFRX handle |
| * @retval SPDIFRX Error Code |
| */ |
| uint32_t HAL_SPDIFRX_GetError(SPDIFRX_HandleTypeDef *hspdif) |
| { |
| return hspdif->ErrorCode; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @brief DMA SPDIFRX receive process (Data flow) complete callback |
| * @param hdma DMA handle |
| * @retval None |
| */ |
| static void SPDIFRX_DMARxCplt(DMA_HandleTypeDef *hdma) |
| { |
| SPDIFRX_HandleTypeDef* hspdif = ( SPDIFRX_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| |
| /* Disable Rx DMA Request */ |
| if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0) |
| { |
| 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 |
| * @param tickstart Tick start value |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef SPDIFRX_WaitOnFlagUntilTimeout(SPDIFRX_HandleTypeDef *hspdif, uint32_t Flag, FlagStatus Status, uint32_t Timeout, uint32_t tickstart) |
| { |
| /* Wait until flag is set */ |
| if(Status == RESET) |
| { |
| while(__HAL_SPDIFRX_GET_FLAG(hspdif, Flag) == RESET) |
| { |
| /* Check for the Timeout */ |
| if(Timeout != HAL_MAX_DELAY) |
| { |
| if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) |
| { |
| /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE); |
| |
| hspdif->State= HAL_SPDIFRX_STATE_READY; |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hspdif); |
| |
| return HAL_TIMEOUT; |
| } |
| } |
| } |
| } |
| else |
| { |
| while(__HAL_SPDIFRX_GET_FLAG(hspdif, Flag) != RESET) |
| { |
| /* Check for the Timeout */ |
| if(Timeout != HAL_MAX_DELAY) |
| { |
| if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) |
| { |
| /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE); |
| __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE); |
| |
| hspdif->State= HAL_SPDIFRX_STATE_READY; |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hspdif); |
| |
| return HAL_TIMEOUT; |
| } |
| } |
| } |
| } |
| return HAL_OK; |
| } |
| |
| /** |
| * @} |
| */ |
| #endif /* SPDIFRX */ |
| #endif /* HAL_SPDIFRX_MODULE_ENABLED */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |