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diff Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c @ 128:c78bcbd5deda FlipDisplay
Added current STM32 standandard libraries in version independend folder structure
author | Ideenmodellierer |
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date | Sun, 17 Feb 2019 21:12:22 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spdifrx.c Sun Feb 17 21:12:22 2019 +0100 @@ -0,0 +1,1296 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_spdifrx.c + * @author MCD Application Team + * @brief This file provides firmware functions to manage the following + * functionalities of the SPDIFRX audio interface: + * + Initialization and Configuration + * + Data transfers functions + * + DMA transfers management + * + Interrupts and flags management + @verbatim + =============================================================================== + ##### How to use this driver ##### + =============================================================================== + [..] + The SPDIFRX HAL driver can be used as follow: + + (#) Declare SPDIFRX_HandleTypeDef handle structure. + (#) Initialize the SPDIFRX low level resources by implement the HAL_SPDIFRX_MspInit() API: + (##) Enable the SPDIFRX interface clock. + (##) SPDIFRX pins configuration: + (+++) Enable the clock for the SPDIFRX GPIOs. + (+++) Configure these SPDIFRX pins as alternate function pull-up. + (##) NVIC configuration if you need to use interrupt process (HAL_SPDIFRX_ReceiveControlFlow_IT() and HAL_SPDIFRX_ReceiveDataFlow_IT() API's). + (+++) Configure the SPDIFRX interrupt priority. + (+++) Enable the NVIC SPDIFRX IRQ handle. + (##) DMA Configuration if you need to use DMA process (HAL_SPDIFRX_ReceiveDataFlow_DMA() and HAL_SPDIFRX_ReceiveControlFlow_DMA() API's). + (+++) Declare a DMA handle structure for the reception of the Data Flow channel. + (+++) Declare a DMA handle structure for the reception of the Control Flow channel. + (+++) Enable the DMAx interface clock. + (+++) Configure the declared DMA handle structure CtrlRx/DataRx with the required parameters. + (+++) Configure the DMA Channel. + (+++) Associate the initialized DMA handle to the SPDIFRX DMA CtrlRx/DataRx handle. + (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the + DMA CtrlRx/DataRx channel. + + (#) Program the input selection, re-tries number, wait for activity, channel status selection, data format, stereo mode and masking of user bits + using HAL_SPDIFRX_Init() function. + + -@- The specific SPDIFRX interrupts (RXNE/CSRNE and Error Interrupts) will be managed using the macros + __SPDIFRX_ENABLE_IT() and __SPDIFRX_DISABLE_IT() inside the receive process. + -@- Make sure that ck_spdif clock is configured. + + (#) Three operation modes are available within this driver : + + *** Polling mode for reception operation (for debug purpose) *** + ================================================================ + [..] + (+) Receive data flow in blocking mode using HAL_SPDIFRX_ReceiveDataFlow() + (+) Receive control flow of data in blocking mode using HAL_SPDIFRX_ReceiveControlFlow() + + *** Interrupt mode for reception operation *** + ========================================= + [..] + (+) Receive an amount of data (Data Flow) in non blocking mode using HAL_SPDIFRX_ReceiveDataFlow_IT() + (+) Receive an amount of data (Control Flow) in non blocking mode using HAL_SPDIFRX_ReceiveControlFlow_IT() + (+) At reception end of half transfer HAL_SPDIFRX_RxHalfCpltCallback is executed and user can + add his own code by customization of function pointer HAL_SPDIFRX_RxHalfCpltCallback + (+) At reception end of transfer HAL_SPDIFRX_RxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_SPDIFRX_RxCpltCallback + (+) In case of transfer Error, HAL_SPDIFRX_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_SPDIFRX_ErrorCallback + + *** DMA mode for reception operation *** + ======================================== + [..] + (+) Receive an amount of data (Data Flow) in non blocking mode (DMA) using HAL_SPDIFRX_ReceiveDataFlow_DMA() + (+) Receive an amount of data (Control Flow) in non blocking mode (DMA) using HAL_SPDIFRX_ReceiveControlFlow_DMA() + (+) At reception end of half transfer HAL_SPDIFRX_RxHalfCpltCallback is executed and user can + add his own code by customization of function pointer HAL_SPDIFRX_RxHalfCpltCallback + (+) At reception end of transfer HAL_SPDIFRX_RxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_SPDIFRX_RxCpltCallback + (+) In case of transfer Error, HAL_SPDIFRX_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_SPDIFRX_ErrorCallback + (+) Stop the DMA Transfer using HAL_SPDIFRX_DMAStop() + + *** SPDIFRX HAL driver macros list *** + ============================================= + [..] + Below the list of most used macros in SPDIFRX HAL driver. + (+) __HAL_SPDIFRX_IDLE: Disable the specified SPDIFRX peripheral (IDEL State) + (+) __HAL_SPDIFRX_SYNC: Enable the synchronization state of the specified SPDIFRX peripheral (SYNC State) + (+) __HAL_SPDIFRX_RCV: Enable the receive state of the specified SPDIFRX peripheral (RCV State) + (+) __HAL_SPDIFRX_ENABLE_IT : Enable the specified SPDIFRX interrupts + (+) __HAL_SPDIFRX_DISABLE_IT : Disable the specified SPDIFRX interrupts + (+) __HAL_SPDIFRX_GET_FLAG: Check whether the specified SPDIFRX flag is set or not. + + [..] + (@) You can refer to the SPDIFRX HAL driver header file for more useful macros + + @endverbatim + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx_hal.h" + +/** @addtogroup STM32F4xx_HAL_Driver + * @{ + */ +/** @defgroup SPDIFRX SPDIFRX + * @brief SPDIFRX HAL module driver + * @{ + */ + +#ifdef HAL_SPDIFRX_MODULE_ENABLED + +#if defined(STM32F446xx) + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +#define SPDIFRX_TIMEOUT_VALUE 0xFFFF + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ + +/** @addtogroup SPDIFRX_Private_Functions + * @{ + */ +static void SPDIFRX_DMARxCplt(DMA_HandleTypeDef *hdma); +static void SPDIFRX_DMARxHalfCplt(DMA_HandleTypeDef *hdma); +static void SPDIFRX_DMACxCplt(DMA_HandleTypeDef *hdma); +static void SPDIFRX_DMACxHalfCplt(DMA_HandleTypeDef *hdma); +static void SPDIFRX_DMAError(DMA_HandleTypeDef *hdma); +static void SPDIFRX_ReceiveControlFlow_IT(SPDIFRX_HandleTypeDef *hspdif); +static void SPDIFRX_ReceiveDataFlow_IT(SPDIFRX_HandleTypeDef *hspdif); +static HAL_StatusTypeDef SPDIFRX_WaitOnFlagUntilTimeout(SPDIFRX_HandleTypeDef *hspdif, uint32_t Flag, FlagStatus Status, uint32_t Timeout); + +/** + * @} + */ +/* Exported functions ---------------------------------------------------------*/ + +/** @defgroup SPDIFRX_Exported_Functions SPDIFRX Exported Functions + * @{ + */ + +/** @defgroup SPDIFRX_Exported_Functions_Group1 Initialization and de-initialization functions + * @brief Initialization and Configuration functions + * + @verbatim + =============================================================================== + ##### Initialization and de-initialization functions ##### + =============================================================================== + [..] This subsection provides a set of functions allowing to initialize and + de-initialize the SPDIFRX peripheral: + + (+) User must Implement HAL_SPDIFRX_MspInit() function in which he configures + all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ). + + (+) Call the function HAL_SPDIFRX_Init() to configure the SPDIFRX peripheral with + the selected configuration: + (++) Input Selection (IN0, IN1,...) + (++) Maximum allowed re-tries during synchronization phase + (++) Wait for activity on SPDIF selected input + (++) Channel status selection (from channel A or B) + (++) Data format (LSB, MSB, ...) + (++) Stereo mode + (++) User bits masking (PT,C,U,V,...) + + (+) Call the function HAL_SPDIFRX_DeInit() to restore the default configuration + of the selected SPDIFRXx peripheral. + @endverbatim + * @{ + */ + +/** + * @brief Initializes the SPDIFRX according to the specified parameters + * in the SPDIFRX_InitTypeDef and create the associated handle. + * @param hspdif SPDIFRX handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_Init(SPDIFRX_HandleTypeDef *hspdif) +{ + uint32_t tmpreg = 0U; + + /* Check the SPDIFRX handle allocation */ + if(hspdif == NULL) + { + return HAL_ERROR; + } + + /* Check the SPDIFRX parameters */ + assert_param(IS_STEREO_MODE(hspdif->Init.StereoMode)); + assert_param(IS_SPDIFRX_INPUT_SELECT(hspdif->Init.InputSelection)); + assert_param(IS_SPDIFRX_MAX_RETRIES(hspdif->Init.Retries)); + assert_param(IS_SPDIFRX_WAIT_FOR_ACTIVITY(hspdif->Init.WaitForActivity)); + assert_param(IS_SPDIFRX_CHANNEL(hspdif->Init.ChannelSelection)); + assert_param(IS_SPDIFRX_DATA_FORMAT(hspdif->Init.DataFormat)); + assert_param(IS_PREAMBLE_TYPE_MASK(hspdif->Init.PreambleTypeMask)); + assert_param(IS_CHANNEL_STATUS_MASK(hspdif->Init.ChannelStatusMask)); + assert_param(IS_VALIDITY_MASK(hspdif->Init.ValidityBitMask)); + assert_param(IS_PARITY_ERROR_MASK(hspdif->Init.ParityErrorMask)); + + if(hspdif->State == HAL_SPDIFRX_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hspdif->Lock = HAL_UNLOCKED; + /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */ + HAL_SPDIFRX_MspInit(hspdif); + } + + /* SPDIFRX peripheral state is BUSY*/ + hspdif->State = HAL_SPDIFRX_STATE_BUSY; + + /* Disable SPDIFRX interface (IDLE State) */ + __HAL_SPDIFRX_IDLE(hspdif); + + /* Reset the old SPDIFRX CR configuration */ + tmpreg = hspdif->Instance->CR; + + tmpreg &= ~((uint16_t) SPDIFRX_CR_RXSTEO | SPDIFRX_CR_DRFMT | SPDIFRX_CR_PMSK | + SPDIFRX_CR_VMSK | SPDIFRX_CR_CUMSK | SPDIFRX_CR_PTMSK | + SPDIFRX_CR_CHSEL | SPDIFRX_CR_NBTR | SPDIFRX_CR_WFA | + SPDIFRX_CR_INSEL); + + /* Sets the new configuration of the SPDIFRX peripheral */ + tmpreg |= ((uint16_t) hspdif->Init.StereoMode | + hspdif->Init.InputSelection | + hspdif->Init.Retries | + hspdif->Init.WaitForActivity | + hspdif->Init.ChannelSelection | + hspdif->Init.DataFormat | + hspdif->Init.PreambleTypeMask | + hspdif->Init.ChannelStatusMask | + hspdif->Init.ValidityBitMask | + hspdif->Init.ParityErrorMask); + + hspdif->Instance->CR = tmpreg; + + hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; + + /* SPDIFRX peripheral state is READY*/ + hspdif->State = HAL_SPDIFRX_STATE_READY; + + return HAL_OK; +} + +/** + * @brief DeInitializes the SPDIFRX peripheral + * @param hspdif SPDIFRX handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_DeInit(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Check the SPDIFRX handle allocation */ + if(hspdif == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + assert_param(IS_SPDIFRX_ALL_INSTANCE(hspdif->Instance)); + + hspdif->State = HAL_SPDIFRX_STATE_BUSY; + + /* Disable SPDIFRX interface (IDLE state) */ + __HAL_SPDIFRX_IDLE(hspdif); + + /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */ + HAL_SPDIFRX_MspDeInit(hspdif); + + hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; + + /* SPDIFRX peripheral state is RESET*/ + hspdif->State = HAL_SPDIFRX_STATE_RESET; + + /* Release Lock */ + __HAL_UNLOCK(hspdif); + + return HAL_OK; +} + +/** + * @brief SPDIFRX MSP Init + * @param hspdif SPDIFRX handle + * @retval None + */ +__weak void HAL_SPDIFRX_MspInit(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspdif); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SPDIFRX_MspInit could be implemented in the user file + */ +} + +/** + * @brief SPDIFRX MSP DeInit + * @param hspdif SPDIFRX handle + * @retval None + */ +__weak void HAL_SPDIFRX_MspDeInit(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspdif); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SPDIFRX_MspDeInit could be implemented in the user file + */ +} + +/** + * @brief Sets the SPDIFRX dtat format according to the specified parameters + * in the SPDIFRX_InitTypeDef. + * @param hspdif SPDIFRX handle + * @param sDataFormat SPDIFRX data format + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_SetDataFormat(SPDIFRX_HandleTypeDef *hspdif, SPDIFRX_SetDataFormatTypeDef sDataFormat) +{ + uint32_t tmpreg = 0U; + + /* Check the SPDIFRX handle allocation */ + if(hspdif == NULL) + { + return HAL_ERROR; + } + + /* Check the SPDIFRX parameters */ + assert_param(IS_STEREO_MODE(sDataFormat.StereoMode)); + assert_param(IS_SPDIFRX_DATA_FORMAT(sDataFormat.DataFormat)); + assert_param(IS_PREAMBLE_TYPE_MASK(sDataFormat.PreambleTypeMask)); + assert_param(IS_CHANNEL_STATUS_MASK(sDataFormat.ChannelStatusMask)); + assert_param(IS_VALIDITY_MASK(sDataFormat.ValidityBitMask)); + assert_param(IS_PARITY_ERROR_MASK(sDataFormat.ParityErrorMask)); + + /* Reset the old SPDIFRX CR configuration */ + tmpreg = hspdif->Instance->CR; + + if(((tmpreg & SPDIFRX_STATE_RCV) == SPDIFRX_STATE_RCV) && + (((tmpreg & SPDIFRX_CR_DRFMT) != sDataFormat.DataFormat) || + ((tmpreg & SPDIFRX_CR_RXSTEO) != sDataFormat.StereoMode))) + { + return HAL_ERROR; + } + + tmpreg &= ~((uint16_t) SPDIFRX_CR_RXSTEO | SPDIFRX_CR_DRFMT | SPDIFRX_CR_PMSK | + SPDIFRX_CR_VMSK | SPDIFRX_CR_CUMSK | SPDIFRX_CR_PTMSK); + + /* Sets the new configuration of the SPDIFRX peripheral */ + tmpreg |= ((uint16_t) sDataFormat.StereoMode | + sDataFormat.DataFormat | + sDataFormat.PreambleTypeMask | + sDataFormat.ChannelStatusMask | + sDataFormat.ValidityBitMask | + sDataFormat.ParityErrorMask); + + hspdif->Instance->CR = tmpreg; + + return HAL_OK; +} + +/** + * @} + */ + +/** @defgroup SPDIFRX_Exported_Functions_Group2 IO operation functions + * @brief Data transfers functions + * +@verbatim +=============================================================================== + ##### IO operation functions ##### +=============================================================================== + [..] + This subsection provides a set of functions allowing to manage the SPDIFRX data + transfers. + + (#) There is two mode of transfer: + (++) Blocking mode : The communication is performed in the polling mode. + The status of all data processing is returned by the same function + after finishing transfer. + (++) No-Blocking mode : The communication is performed using Interrupts + or DMA. These functions return the status of the transfer start-up. + The end of the data processing will be indicated through the + dedicated SPDIFRX IRQ when using Interrupt mode or the DMA IRQ when + using DMA mode. + + (#) Blocking mode functions are : + (++) HAL_SPDIFRX_ReceiveDataFlow() + (++) HAL_SPDIFRX_ReceiveControlFlow() + (+@) Do not use blocking mode to receive both control and data flow at the same time. + + (#) No-Blocking mode functions with Interrupt are : + (++) HAL_SPDIFRX_ReceiveControlFlow_IT() + (++) HAL_SPDIFRX_ReceiveDataFlow_IT() + + (#) No-Blocking mode functions with DMA are : + (++) HAL_SPDIFRX_ReceiveControlFlow_DMA() + (++) HAL_SPDIFRX_ReceiveDataFlow_DMA() + + (#) A set of Transfer Complete Callbacks are provided in No_Blocking mode: + (++) HAL_SPDIFRX_RxCpltCallback() + (++) HAL_SPDIFRX_ErrorCallback() + +@endverbatim + * @{ + */ + +/** + * @brief Receives an amount of data (Data Flow) in blocking mode. + * @param hspdif pointer to SPDIFRX_HandleTypeDef structure that contains + * the configuration information for SPDIFRX module. + * @param pData Pointer to data buffer + * @param Size Amount of data to be received + * @param Timeout Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_ReceiveDataFlow(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size, uint32_t Timeout) +{ + if((pData == NULL ) || (Size == 0)) + { + return HAL_ERROR; + } + + if(hspdif->State == HAL_SPDIFRX_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hspdif); + + hspdif->State = HAL_SPDIFRX_STATE_BUSY; + + /* Start synchronisation */ + __HAL_SPDIFRX_SYNC(hspdif); + + /* Wait until SYNCD flag is set */ + if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + + /* Start reception */ + __HAL_SPDIFRX_RCV(hspdif); + + /* Receive data flow */ + while(Size > 0) + { + /* Wait until RXNE flag is set */ + if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_RXNE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + + (*pData++) = hspdif->Instance->DR; + Size--; + } + + /* SPDIFRX ready */ + hspdif->State = HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receives an amount of data (Control Flow) in blocking mode. + * @param hspdif pointer to a SPDIFRX_HandleTypeDef structure that contains + * the configuration information for SPDIFRX module. + * @param pData Pointer to data buffer + * @param Size Amount of data to be received + * @param Timeout Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_ReceiveControlFlow(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size, uint32_t Timeout) +{ + if((pData == NULL ) || (Size == 0)) + { + return HAL_ERROR; + } + + if(hspdif->State == HAL_SPDIFRX_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hspdif); + + hspdif->State = HAL_SPDIFRX_STATE_BUSY; + + /* Start synchronization */ + __HAL_SPDIFRX_SYNC(hspdif); + + /* Wait until SYNCD flag is set */ + if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_SYNCD, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + + /* Start reception */ + __HAL_SPDIFRX_RCV(hspdif); + + /* Receive control flow */ + while(Size > 0) + { + /* Wait until CSRNE flag is set */ + if(SPDIFRX_WaitOnFlagUntilTimeout(hspdif, SPDIFRX_FLAG_CSRNE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + + (*pData++) = hspdif->Instance->CSR; + Size--; + } + + /* SPDIFRX ready */ + hspdif->State = HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} +/** + * @brief Receive an amount of data (Data Flow) in non-blocking mode with Interrupt + * @param hspdif SPDIFRX handle + * @param pData a 32-bit pointer to the Receive data buffer. + * @param Size number of data sample to be received . + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_ReceiveDataFlow_IT(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size) +{ + __IO uint32_t count = SPDIFRX_TIMEOUT_VALUE * (SystemCoreClock / 24U / 1000U); + + if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_CX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hspdif); + + hspdif->pRxBuffPtr = pData; + hspdif->RxXferSize = Size; + hspdif->RxXferCount = Size; + + hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; + + /* Check if a receive process is ongoing or not */ + hspdif->State = HAL_SPDIFRX_STATE_BUSY_RX; + + /* Enable the SPDIFRX PE Error Interrupt */ + __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_PERRIE); + + /* Enable the SPDIFRX OVR Error Interrupt */ + __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_OVRIE); + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + /* Enable the SPDIFRX RXNE interrupt */ + __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_RXNE); + + if ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC || (SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U) + { + /* Start synchronization */ + __HAL_SPDIFRX_SYNC(hspdif); + + /* Wait until SYNCD flag is set */ + do + { + if (count-- == 0U) + { + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE); + + hspdif->State= HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_TIMEOUT; + } + } + while (__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_SYNCD) == RESET); + + /* Start reception */ + __HAL_SPDIFRX_RCV(hspdif); + } + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data (Control Flow) with Interrupt + * @param hspdif SPDIFRX handle + * @param pData a 32-bit pointer to the Receive data buffer. + * @param Size number of data sample (Control Flow) to be received : + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_ReceiveControlFlow_IT(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size) +{ + __IO uint32_t count = SPDIFRX_TIMEOUT_VALUE * (SystemCoreClock / 24U / 1000U); + + if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_RX)) + { + if((pData == NULL ) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hspdif); + + hspdif->pCsBuffPtr = pData; + hspdif->CsXferSize = Size; + hspdif->CsXferCount = Size; + + hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; + + /* Check if a receive process is ongoing or not */ + hspdif->State = HAL_SPDIFRX_STATE_BUSY_CX; + + /* Enable the SPDIFRX PE Error Interrupt */ + __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_PERRIE); + + /* Enable the SPDIFRX OVR Error Interrupt */ + __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_OVRIE); + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + /* Enable the SPDIFRX CSRNE interrupt */ + __HAL_SPDIFRX_ENABLE_IT(hspdif, SPDIFRX_IT_CSRNE); + + if ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC || (SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U) + { + /* Start synchronization */ + __HAL_SPDIFRX_SYNC(hspdif); + + /* Wait until SYNCD flag is set */ + do + { + if (count-- == 0U) + { + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE); + + hspdif->State= HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_TIMEOUT; + } + } + while (__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_SYNCD) == RESET); + + /* Start reception */ + __HAL_SPDIFRX_RCV(hspdif); + } + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data (Data Flow) mode with DMA + * @param hspdif SPDIFRX handle + * @param pData a 32-bit pointer to the Receive data buffer. + * @param Size number of data sample to be received : + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_ReceiveDataFlow_DMA(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size) +{ + __IO uint32_t count = SPDIFRX_TIMEOUT_VALUE * (SystemCoreClock / 24U / 1000U); + + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_CX)) + { + hspdif->pRxBuffPtr = pData; + hspdif->RxXferSize = Size; + hspdif->RxXferCount = Size; + + /* Process Locked */ + __HAL_LOCK(hspdif); + + hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; + hspdif->State = HAL_SPDIFRX_STATE_BUSY_RX; + + /* Set the SPDIFRX Rx DMA Half transfer complete callback */ + hspdif->hdmaDrRx->XferHalfCpltCallback = SPDIFRX_DMARxHalfCplt; + + /* Set the SPDIFRX Rx DMA transfer complete callback */ + hspdif->hdmaDrRx->XferCpltCallback = SPDIFRX_DMARxCplt; + + /* Set the DMA error callback */ + hspdif->hdmaDrRx->XferErrorCallback = SPDIFRX_DMAError; + + /* Enable the DMA request */ + HAL_DMA_Start_IT(hspdif->hdmaDrRx, (uint32_t)&hspdif->Instance->DR, (uint32_t)hspdif->pRxBuffPtr, Size); + + /* Enable RXDMAEN bit in SPDIFRX CR register for data flow reception*/ + hspdif->Instance->CR |= SPDIFRX_CR_RXDMAEN; + + if ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC || (SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U) + { + /* Start synchronization */ + __HAL_SPDIFRX_SYNC(hspdif); + + /* Wait until SYNCD flag is set */ + do + { + if (count-- == 0U) + { + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE); + + hspdif->State= HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_TIMEOUT; + } + } + while (__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_SYNCD) == RESET); + + /* Start reception */ + __HAL_SPDIFRX_RCV(hspdif); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data (Control Flow) with DMA + * @param hspdif SPDIFRX handle + * @param pData a 32-bit pointer to the Receive data buffer. + * @param Size number of data (Control Flow) sample to be received : + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPDIFRX_ReceiveControlFlow_DMA(SPDIFRX_HandleTypeDef *hspdif, uint32_t *pData, uint16_t Size) +{ + __IO uint32_t count = SPDIFRX_TIMEOUT_VALUE * (SystemCoreClock / 24U / 1000U); + + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + if((hspdif->State == HAL_SPDIFRX_STATE_READY) || (hspdif->State == HAL_SPDIFRX_STATE_BUSY_RX)) + { + hspdif->pCsBuffPtr = pData; + hspdif->CsXferSize = Size; + hspdif->CsXferCount = Size; + + /* Process Locked */ + __HAL_LOCK(hspdif); + + hspdif->ErrorCode = HAL_SPDIFRX_ERROR_NONE; + hspdif->State = HAL_SPDIFRX_STATE_BUSY_CX; + + /* Set the SPDIFRX Rx DMA Half transfer complete callback */ + hspdif->hdmaCsRx->XferHalfCpltCallback = SPDIFRX_DMACxHalfCplt; + + /* Set the SPDIFRX Rx DMA transfer complete callback */ + hspdif->hdmaCsRx->XferCpltCallback = SPDIFRX_DMACxCplt; + + /* Set the DMA error callback */ + hspdif->hdmaCsRx->XferErrorCallback = SPDIFRX_DMAError; + + /* Enable the DMA request */ + HAL_DMA_Start_IT(hspdif->hdmaCsRx, (uint32_t)&hspdif->Instance->CSR, (uint32_t)hspdif->pCsBuffPtr, Size); + + /* Enable CBDMAEN bit in SPDIFRX CR register for control flow reception*/ + hspdif->Instance->CR |= SPDIFRX_CR_CBDMAEN; + + if ((SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != SPDIFRX_STATE_SYNC || (SPDIFRX->CR & SPDIFRX_CR_SPDIFEN) != 0x00U) + { + /* Start synchronization */ + __HAL_SPDIFRX_SYNC(hspdif); + + /* Wait until SYNCD flag is set */ + do + { + if (count-- == 0U) + { + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE); + + hspdif->State= HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_TIMEOUT; + } + } + while (__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_SYNCD) == RESET); + + /* Start reception */ + __HAL_SPDIFRX_RCV(hspdif); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief stop the audio stream receive from the Media. + * @param hspdif SPDIFRX handle + * @retval None + */ +HAL_StatusTypeDef HAL_SPDIFRX_DMAStop(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Process Locked */ + __HAL_LOCK(hspdif); + + /* Disable the SPDIFRX DMA requests */ + hspdif->Instance->CR &= (uint16_t)(~SPDIFRX_CR_RXDMAEN); + hspdif->Instance->CR &= (uint16_t)(~SPDIFRX_CR_CBDMAEN); + + /* Disable the SPDIFRX DMA channel */ + __HAL_DMA_DISABLE(hspdif->hdmaDrRx); + __HAL_DMA_DISABLE(hspdif->hdmaCsRx); + + /* Disable SPDIFRX peripheral */ + __HAL_SPDIFRX_IDLE(hspdif); + + hspdif->State = HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_OK; +} + +/** + * @brief This function handles SPDIFRX interrupt request. + * @param hspdif SPDIFRX handle + * @retval HAL status + */ +void HAL_SPDIFRX_IRQHandler(SPDIFRX_HandleTypeDef *hspdif) +{ + /* SPDIFRX in mode Data Flow Reception ------------------------------------------------*/ + if((__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_RXNE) != RESET) && (__HAL_SPDIFRX_GET_IT_SOURCE(hspdif, SPDIFRX_IT_RXNE) != RESET)) + { + __HAL_SPDIFRX_CLEAR_IT(hspdif, SPDIFRX_IT_RXNE); + SPDIFRX_ReceiveDataFlow_IT(hspdif); + } + + /* SPDIFRX in mode Control Flow Reception ------------------------------------------------*/ + if((__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_CSRNE) != RESET) && (__HAL_SPDIFRX_GET_IT_SOURCE(hspdif, SPDIFRX_IT_CSRNE) != RESET)) + { + __HAL_SPDIFRX_CLEAR_IT(hspdif, SPDIFRX_IT_CSRNE); + SPDIFRX_ReceiveControlFlow_IT(hspdif); + } + + /* SPDIFRX Overrun error interrupt occurred ---------------------------------*/ + if((__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_OVR) != RESET) && (__HAL_SPDIFRX_GET_IT_SOURCE(hspdif, SPDIFRX_IT_OVRIE) != RESET)) + { + __HAL_SPDIFRX_CLEAR_IT(hspdif, SPDIFRX_FLAG_OVR); + + /* Change the SPDIFRX error code */ + hspdif->ErrorCode |= HAL_SPDIFRX_ERROR_OVR; + + /* the transfer is not stopped */ + HAL_SPDIFRX_ErrorCallback(hspdif); + } + + /* SPDIFRX Parity error interrupt occurred ---------------------------------*/ + if((__HAL_SPDIFRX_GET_FLAG(hspdif, SPDIFRX_FLAG_PERR) != RESET) && (__HAL_SPDIFRX_GET_IT_SOURCE(hspdif, SPDIFRX_IT_PERRIE) != RESET)) + { + __HAL_SPDIFRX_CLEAR_IT(hspdif, SPDIFRX_FLAG_PERR); + + /* Change the SPDIFRX error code */ + hspdif->ErrorCode |= HAL_SPDIFRX_ERROR_PE; + + /* the transfer is not stopped */ + HAL_SPDIFRX_ErrorCallback(hspdif); + } +} + +/** + * @brief Rx Transfer (Data flow) half completed callbacks + * @param hspdif SPDIFRX handle + * @retval None + */ +__weak void HAL_SPDIFRX_RxHalfCpltCallback(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspdif); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Rx Transfer (Data flow) completed callbacks + * @param hspdif SPDIFRX handle + * @retval None + */ +__weak void HAL_SPDIFRX_RxCpltCallback(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspdif); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Rx (Control flow) Transfer half completed callbacks + * @param hspdif SPDIFRX handle + * @retval None + */ +__weak void HAL_SPDIFRX_CxHalfCpltCallback(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspdif); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Rx Transfer (Control flow) completed callbacks + * @param hspdif SPDIFRX handle + * @retval None + */ +__weak void HAL_SPDIFRX_CxCpltCallback(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspdif); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SPDIFRX_RxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief SPDIFRX error callbacks + * @param hspdif SPDIFRX handle + * @retval None + */ +__weak void HAL_SPDIFRX_ErrorCallback(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspdif); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SPDIFRX_ErrorCallback could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup SPDIFRX_Exported_Functions_Group3 Peripheral State and Errors functions + * @brief Peripheral State functions + * +@verbatim +=============================================================================== + ##### Peripheral State and Errors functions ##### +=============================================================================== +[..] + This subsection permit to get in run-time the status of the peripheral + and the data flow. + +@endverbatim + * @{ + */ + +/** + * @brief Return the SPDIFRX state + * @param hspdif SPDIFRX handle + * @retval HAL state + */ +HAL_SPDIFRX_StateTypeDef HAL_SPDIFRX_GetState(SPDIFRX_HandleTypeDef *hspdif) +{ + return hspdif->State; +} + +/** + * @brief Return the SPDIFRX error code + * @param hspdif SPDIFRX handle + * @retval SPDIFRX Error Code + */ +uint32_t HAL_SPDIFRX_GetError(SPDIFRX_HandleTypeDef *hspdif) +{ + return hspdif->ErrorCode; +} + +/** + * @} + */ + +/** + * @brief DMA SPDIFRX receive process (Data flow) complete callback + * @param hdma DMA handle + * @retval None + */ +static void SPDIFRX_DMARxCplt(DMA_HandleTypeDef *hdma) +{ + SPDIFRX_HandleTypeDef* hspdif = ( SPDIFRX_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + + /* Disable Rx DMA Request */ + hspdif->Instance->CR &= (uint16_t)(~SPDIFRX_CR_RXDMAEN); + hspdif->RxXferCount = 0U; + + hspdif->State = HAL_SPDIFRX_STATE_READY; + HAL_SPDIFRX_RxCpltCallback(hspdif); +} + +/** + * @brief DMA SPDIFRX receive process (Data flow) half complete callback + * @param hdma DMA handle + * @retval None + */ +static void SPDIFRX_DMARxHalfCplt(DMA_HandleTypeDef *hdma) +{ + SPDIFRX_HandleTypeDef* hspdif = (SPDIFRX_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent; + + HAL_SPDIFRX_RxHalfCpltCallback(hspdif); +} + +/** + * @brief DMA SPDIFRX receive process (Control flow) complete callback + * @param hdma DMA handle + * @retval None + */ +static void SPDIFRX_DMACxCplt(DMA_HandleTypeDef *hdma) +{ + SPDIFRX_HandleTypeDef* hspdif = ( SPDIFRX_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + + /* Disable Cb DMA Request */ + hspdif->Instance->CR &= (uint16_t)(~SPDIFRX_CR_CBDMAEN); + hspdif->CsXferCount = 0U; + + hspdif->State = HAL_SPDIFRX_STATE_READY; + HAL_SPDIFRX_CxCpltCallback(hspdif); +} + +/** + * @brief DMA SPDIFRX receive process (Control flow) half complete callback + * @param hdma DMA handle + * @retval None + */ +static void SPDIFRX_DMACxHalfCplt(DMA_HandleTypeDef *hdma) +{ + SPDIFRX_HandleTypeDef* hspdif = (SPDIFRX_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent; + + HAL_SPDIFRX_CxHalfCpltCallback(hspdif); +} + +/** + * @brief DMA SPDIFRX communication error callback + * @param hdma DMA handle + * @retval None + */ +static void SPDIFRX_DMAError(DMA_HandleTypeDef *hdma) +{ + SPDIFRX_HandleTypeDef* hspdif = ( SPDIFRX_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + + /* Disable Rx and Cb DMA Request */ + hspdif->Instance->CR &= (uint16_t)(~(SPDIFRX_CR_RXDMAEN | SPDIFRX_CR_CBDMAEN)); + hspdif->RxXferCount = 0U; + + hspdif->State= HAL_SPDIFRX_STATE_READY; + + /* Set the error code and execute error callback*/ + hspdif->ErrorCode |= HAL_SPDIFRX_ERROR_DMA; + HAL_SPDIFRX_ErrorCallback(hspdif); +} + +/** + * @brief Receive an amount of data (Data Flow) with Interrupt + * @param hspdif SPDIFRX handle + * @retval None + */ +static void SPDIFRX_ReceiveDataFlow_IT(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Receive data */ + (*hspdif->pRxBuffPtr++) = hspdif->Instance->DR; + hspdif->RxXferCount--; + + if(hspdif->RxXferCount == 0U) + { + /* Disable RXNE/PE and OVR interrupts */ + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE | SPDIFRX_IT_PERRIE | SPDIFRX_IT_RXNE); + + hspdif->State = HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + HAL_SPDIFRX_RxCpltCallback(hspdif); + } +} + +/** + * @brief Receive an amount of data (Control Flow) with Interrupt + * @param hspdif SPDIFRX handle + * @retval None + */ +static void SPDIFRX_ReceiveControlFlow_IT(SPDIFRX_HandleTypeDef *hspdif) +{ + /* Receive data */ + (*hspdif->pCsBuffPtr++) = hspdif->Instance->CSR; + hspdif->CsXferCount--; + + if(hspdif->CsXferCount == 0U) + { + /* Disable CSRNE interrupt */ + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); + + hspdif->State = HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + HAL_SPDIFRX_CxCpltCallback(hspdif); + } +} + +/** + * @brief This function handles SPDIFRX Communication Timeout. + * @param hspdif SPDIFRX handle + * @param Flag Flag checked + * @param Status Value of the flag expected + * @param Timeout Duration of the timeout + * @retval HAL status + */ +static HAL_StatusTypeDef SPDIFRX_WaitOnFlagUntilTimeout(SPDIFRX_HandleTypeDef *hspdif, uint32_t Flag, FlagStatus Status, uint32_t Timeout) +{ + uint32_t tickstart = 0U; + + /* Get tick */ + tickstart = HAL_GetTick(); + + /* Wait until flag is set */ + if(Status == RESET) + { + while(__HAL_SPDIFRX_GET_FLAG(hspdif, Flag) == RESET) + { + /* Check for the Timeout */ + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) + { + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE); + + hspdif->State= HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_TIMEOUT; + } + } + } + } + else + { + while(__HAL_SPDIFRX_GET_FLAG(hspdif, Flag) != RESET) + { + /* Check for the Timeout */ + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) + { + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_RXNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_CSRNE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_PERRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_OVRIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SBLKIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_SYNCDIE); + __HAL_SPDIFRX_DISABLE_IT(hspdif, SPDIFRX_IT_IFEIE); + + hspdif->State= HAL_SPDIFRX_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspdif); + + return HAL_TIMEOUT; + } + } + } + } + return HAL_OK; +} + +/** + * @} + */ +#endif /* STM32F446xx */ + +#endif /* HAL_SPDIFRX_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ +