From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001 From: joshua Date: Sat, 30 Dec 2023 23:54:31 -0500 Subject: initial commit --- .../STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sai.c | 2946 ++++++++++++++++++++ 1 file changed, 2946 insertions(+) create mode 100644 Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sai.c (limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sai.c') diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sai.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sai.c new file mode 100644 index 0000000..7e25920 --- /dev/null +++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sai.c @@ -0,0 +1,2946 @@ +/** + ****************************************************************************** + * @file stm32h7xx_hal_sai.c + * @author MCD Application Team + * @brief SAI HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the Serial Audio Interface (SAI) peripheral: + * + Initialization/de-initialization functions + * + I/O operation functions + * + Peripheral Control functions + * + Peripheral State functions + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### How to use this driver ##### + ============================================================================== + + [..] + The SAI HAL driver can be used as follows: + + (#) Declare a SAI_HandleTypeDef handle structure (eg. SAI_HandleTypeDef hsai). + (#) Initialize the SAI low level resources by implementing the HAL_SAI_MspInit() API: + (##) Enable the SAI interface clock. + (##) SAI pins configuration: + (+++) Enable the clock for the SAI GPIOs. + (+++) Configure these SAI pins as alternate function pull-up. + (##) NVIC configuration if you need to use interrupt process (HAL_SAI_Transmit_IT() + and HAL_SAI_Receive_IT() APIs): + (+++) Configure the SAI interrupt priority. + (+++) Enable the NVIC SAI IRQ handle. + + (##) DMA Configuration if you need to use DMA process (HAL_SAI_Transmit_DMA() + and HAL_SAI_Receive_DMA() APIs): + (+++) Declare a DMA handle structure for the Tx/Rx stream. + (+++) Enable the DMAx interface clock. + (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters. + (+++) Configure the DMA Tx/Rx Stream. + (+++) Associate the initialized DMA handle to the SAI DMA Tx/Rx handle. + (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the + DMA Tx/Rx Stream. + + (#) The initialization can be done by two ways + (##) Expert mode : Initialize the structures Init, FrameInit and SlotInit and call HAL_SAI_Init(). + (##) Simplified mode : Initialize the high part of Init Structure and call HAL_SAI_InitProtocol(). + + [..] + (@) The specific SAI interrupts (FIFO request and Overrun underrun interrupt) + will be managed using the macros __HAL_SAI_ENABLE_IT() and __HAL_SAI_DISABLE_IT() + inside the transmit and receive process. + [..] + (@) Make sure that either: + (+@) PLLSAI1CLK output is configured or + (+@) PLLSAI2CLK output is configured or + (+@) PLLSAI3CLK output is configured or + (+@) PLLSAI4ACLK output is configured or + (+@) PLLSAI4BCLK output is configured or + (+@) External clock source is configured after setting correctly + the define constant EXTERNAL_CLOCK_VALUE in the stm32h7xx_hal_conf.h file. + + [..] + (@) In master Tx mode: enabling the audio block immediately generates the bit clock + for the external slaves even if there is no data in the FIFO, However FS signal + generation is conditioned by the presence of data in the FIFO. + + [..] + (@) In master Rx mode: enabling the audio block immediately generates the bit clock + and FS signal for the external slaves. + + [..] + (@) It is mandatory to respect the following conditions in order to avoid bad SAI behavior: + (+@) First bit Offset <= (SLOT size - Data size) + (+@) Data size <= SLOT size + (+@) Number of SLOT x SLOT size = Frame length + (+@) The number of slots should be even when SAI_FS_CHANNEL_IDENTIFICATION is selected. + + [..] + (@) PDM interface can be activated through HAL_SAI_Init function. + Please note that PDM interface is only available for SAI1 or SAI4 sub-block A. + PDM microphone delays can be tuned with HAL_SAIEx_ConfigPdmMicDelay function. + + [..] + Three operation modes are available within this driver : + + *** Polling mode IO operation *** + ================================= + [..] + (+) Send an amount of data in blocking mode using HAL_SAI_Transmit() + (+) Receive an amount of data in blocking mode using HAL_SAI_Receive() + + *** Interrupt mode IO operation *** + =================================== + [..] + (+) Send an amount of data in non-blocking mode using HAL_SAI_Transmit_IT() + (+) At transmission end of transfer HAL_SAI_TxCpltCallback() is executed and user can + add his own code by customization of function pointer HAL_SAI_TxCpltCallback() + (+) Receive an amount of data in non-blocking mode using HAL_SAI_Receive_IT() + (+) At reception end of transfer HAL_SAI_RxCpltCallback() is executed and user can + add his own code by customization of function pointer HAL_SAI_RxCpltCallback() + (+) In case of flag error, HAL_SAI_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_SAI_ErrorCallback() + + *** DMA mode IO operation *** + ============================= + [..] + (+) Send an amount of data in non-blocking mode (DMA) using HAL_SAI_Transmit_DMA() + (+) At transmission end of transfer HAL_SAI_TxCpltCallback() is executed and user can + add his own code by customization of function pointer HAL_SAI_TxCpltCallback() + (+) Receive an amount of data in non-blocking mode (DMA) using HAL_SAI_Receive_DMA() + (+) At reception end of transfer HAL_SAI_RxCpltCallback() is executed and user can + add his own code by customization of function pointer HAL_SAI_RxCpltCallback() + (+) In case of flag error, HAL_SAI_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_SAI_ErrorCallback() + (+) Pause the DMA Transfer using HAL_SAI_DMAPause() + (+) Resume the DMA Transfer using HAL_SAI_DMAResume() + (+) Stop the DMA Transfer using HAL_SAI_DMAStop() + + *** SAI HAL driver additional function list *** + =============================================== + [..] + Below the list the others API available SAI HAL driver : + + (+) HAL_SAI_EnableTxMuteMode(): Enable the mute in tx mode + (+) HAL_SAI_DisableTxMuteMode(): Disable the mute in tx mode + (+) HAL_SAI_EnableRxMuteMode(): Enable the mute in Rx mode + (+) HAL_SAI_DisableRxMuteMode(): Disable the mute in Rx mode + (+) HAL_SAI_FlushRxFifo(): Flush the rx fifo. + (+) HAL_SAI_Abort(): Abort the current transfer + + *** SAI HAL driver macros list *** + ================================== + [..] + Below the list of most used macros in SAI HAL driver : + + (+) __HAL_SAI_ENABLE(): Enable the SAI peripheral + (+) __HAL_SAI_DISABLE(): Disable the SAI peripheral + (+) __HAL_SAI_ENABLE_IT(): Enable the specified SAI interrupts + (+) __HAL_SAI_DISABLE_IT(): Disable the specified SAI interrupts + (+) __HAL_SAI_GET_IT_SOURCE(): Check if the specified SAI interrupt source is + enabled or disabled + (+) __HAL_SAI_GET_FLAG(): Check whether the specified SAI flag is set or not + + *** Callback registration *** + ============================= + [..] + The compilation define USE_HAL_SAI_REGISTER_CALLBACKS when set to 1 + allows the user to configure dynamically the driver callbacks. + Use functions HAL_SAI_RegisterCallback() to register a user callback. + + [..] + Function HAL_SAI_RegisterCallback() allows to register following callbacks: + (+) RxCpltCallback : SAI receive complete. + (+) RxHalfCpltCallback : SAI receive half complete. + (+) TxCpltCallback : SAI transmit complete. + (+) TxHalfCpltCallback : SAI transmit half complete. + (+) ErrorCallback : SAI error. + (+) MspInitCallback : SAI MspInit. + (+) MspDeInitCallback : SAI MspDeInit. + [..] + This function takes as parameters the HAL peripheral handle, the callback ID + and a pointer to the user callback function. + + [..] + Use function HAL_SAI_UnRegisterCallback() to reset a callback to the default + weak (surcharged) function. + HAL_SAI_UnRegisterCallback() takes as parameters the HAL peripheral handle, + and the callback ID. + [..] + This function allows to reset following callbacks: + (+) RxCpltCallback : SAI receive complete. + (+) RxHalfCpltCallback : SAI receive half complete. + (+) TxCpltCallback : SAI transmit complete. + (+) TxHalfCpltCallback : SAI transmit half complete. + (+) ErrorCallback : SAI error. + (+) MspInitCallback : SAI MspInit. + (+) MspDeInitCallback : SAI MspDeInit. + + [..] + By default, after the HAL_SAI_Init and if the state is HAL_SAI_STATE_RESET + all callbacks are reset to the corresponding legacy weak (surcharged) functions: + examples HAL_SAI_RxCpltCallback(), HAL_SAI_ErrorCallback(). + Exception done for MspInit and MspDeInit callbacks that are respectively + reset to the legacy weak (surcharged) functions in the HAL_SAI_Init + and HAL_SAI_DeInit only when these callbacks are null (not registered beforehand). + If not, MspInit or MspDeInit are not null, the HAL_SAI_Init and HAL_SAI_DeInit + keep and use the user MspInit/MspDeInit callbacks (registered beforehand). + + [..] + Callbacks can be registered/unregistered in READY state only. + Exception done for MspInit/MspDeInit callbacks that can be registered/unregistered + in READY or RESET state, thus registered (user) MspInit/DeInit callbacks can be used + during the Init/DeInit. + In that case first register the MspInit/MspDeInit user callbacks + using HAL_SAI_RegisterCallback before calling HAL_SAI_DeInit + or HAL_SAI_Init function. + + [..] + When the compilation define USE_HAL_SAI_REGISTER_CALLBACKS is set to 0 or + not defined, the callback registering feature is not available + and weak (surcharged) callbacks are used. + + @endverbatim + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" + +/** @addtogroup STM32H7xx_HAL_Driver + * @{ + */ + +/** @defgroup SAI SAI + * @brief SAI HAL module driver + * @{ + */ + +#ifdef HAL_SAI_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/** @defgroup SAI_Private_Typedefs SAI Private Typedefs + * @{ + */ +typedef enum +{ + SAI_MODE_DMA, + SAI_MODE_IT +} SAI_ModeTypedef; +/** + * @} + */ + +/* Private define ------------------------------------------------------------*/ +/** @defgroup SAI_Private_Constants SAI Private Constants + * @{ + */ +#define SAI_DEFAULT_TIMEOUT 4U +#define SAI_LONG_TIMEOUT 1000U +#define SAI_SPDIF_FRAME_LENGTH 64U +#define SAI_AC97_FRAME_LENGTH 256U +/** + * @} + */ + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @defgroup SAI_Private_Functions SAI Private Functions + * @{ + */ +static void SAI_FillFifo(SAI_HandleTypeDef *hsai); +static uint32_t SAI_InterruptFlag(const SAI_HandleTypeDef *hsai, SAI_ModeTypedef mode); +static HAL_StatusTypeDef SAI_InitI2S(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot); +static HAL_StatusTypeDef SAI_InitPCM(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot); + +static HAL_StatusTypeDef SAI_Disable(SAI_HandleTypeDef *hsai); +static void SAI_Transmit_IT8Bit(SAI_HandleTypeDef *hsai); +static void SAI_Transmit_IT16Bit(SAI_HandleTypeDef *hsai); +static void SAI_Transmit_IT32Bit(SAI_HandleTypeDef *hsai); +static void SAI_Receive_IT8Bit(SAI_HandleTypeDef *hsai); +static void SAI_Receive_IT16Bit(SAI_HandleTypeDef *hsai); +static void SAI_Receive_IT32Bit(SAI_HandleTypeDef *hsai); + +static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma); +static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma); +static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma); +static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma); +static void SAI_DMAError(DMA_HandleTypeDef *hdma); +static void SAI_DMAAbort(DMA_HandleTypeDef *hdma); +/** + * @} + */ + +/* Exported functions ---------------------------------------------------------*/ +/** @defgroup SAI_Exported_Functions SAI Exported Functions + * @{ + */ + +/** @defgroup SAI_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 SAIx peripheral: + + (+) User must implement HAL_SAI_MspInit() function in which he configures + all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ). + + (+) Call the function HAL_SAI_Init() to configure the selected device with + the selected configuration: + (++) Mode (Master/slave TX/RX) + (++) Protocol + (++) Data Size + (++) MCLK Output + (++) Audio frequency + (++) FIFO Threshold + (++) Frame Config + (++) Slot Config + (++) PDM Config + + (+) Call the function HAL_SAI_DeInit() to restore the default configuration + of the selected SAI peripheral. + +@endverbatim + * @{ + */ + +/** + * @brief Initialize the structure FrameInit, SlotInit and the low part of + * Init according to the specified parameters and call the function + * HAL_SAI_Init to initialize the SAI block. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param protocol one of the supported protocol @ref SAI_Protocol + * @param datasize one of the supported datasize @ref SAI_Protocol_DataSize + * the configuration information for SAI module. + * @param nbslot Number of slot. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_InitProtocol(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot) +{ + HAL_StatusTypeDef status; + + /* Check the parameters */ + assert_param(IS_SAI_SUPPORTED_PROTOCOL(protocol)); + assert_param(IS_SAI_PROTOCOL_DATASIZE(datasize)); + + switch (protocol) + { + case SAI_I2S_STANDARD : + case SAI_I2S_MSBJUSTIFIED : + case SAI_I2S_LSBJUSTIFIED : + status = SAI_InitI2S(hsai, protocol, datasize, nbslot); + break; + case SAI_PCM_LONG : + case SAI_PCM_SHORT : + status = SAI_InitPCM(hsai, protocol, datasize, nbslot); + break; + default : + status = HAL_ERROR; + break; + } + + if (status == HAL_OK) + { + status = HAL_SAI_Init(hsai); + } + + return status; +} + +/** + * @brief Initialize the SAI according to the specified parameters. + * in the SAI_InitTypeDef structure and initialize the associated handle. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_Init(SAI_HandleTypeDef *hsai) +{ + uint32_t tmpregisterGCR; + uint32_t ckstr_bits; + uint32_t syncen_bits; + SAI_TypeDef *SaiBaseAddress; + + /* Check the SAI handle allocation */ + if (hsai == NULL) + { + return HAL_ERROR; + } + + /* check the instance */ + assert_param(IS_SAI_ALL_INSTANCE(hsai->Instance)); + + /* Check the SAI Block parameters */ + assert_param(IS_SAI_AUDIO_FREQUENCY(hsai->Init.AudioFrequency)); + assert_param(IS_SAI_BLOCK_PROTOCOL(hsai->Init.Protocol)); + assert_param(IS_SAI_BLOCK_MODE(hsai->Init.AudioMode)); + assert_param(IS_SAI_BLOCK_DATASIZE(hsai->Init.DataSize)); + assert_param(IS_SAI_BLOCK_FIRST_BIT(hsai->Init.FirstBit)); + assert_param(IS_SAI_BLOCK_CLOCK_STROBING(hsai->Init.ClockStrobing)); + assert_param(IS_SAI_BLOCK_SYNCHRO(hsai->Init.Synchro)); +#if defined(SAI_VER_V2_X) + /* SAI Peripheral version depends on STM32H7 device revision ID */ + if (HAL_GetREVID() >= REV_ID_B) /* STM32H7xx Rev.B and above */ + { + assert_param(IS_SAI_BLOCK_MCK_OUTPUT(hsai->Init.MckOutput)); + } +#else /* SAI_VER_V2_1 */ + assert_param(IS_SAI_BLOCK_MCK_OUTPUT(hsai->Init.MckOutput)); +#endif /* SAI_VER_V2_X */ + assert_param(IS_SAI_BLOCK_OUTPUT_DRIVE(hsai->Init.OutputDrive)); + assert_param(IS_SAI_BLOCK_NODIVIDER(hsai->Init.NoDivider)); + assert_param(IS_SAI_BLOCK_FIFO_THRESHOLD(hsai->Init.FIFOThreshold)); + assert_param(IS_SAI_MONO_STEREO_MODE(hsai->Init.MonoStereoMode)); + assert_param(IS_SAI_BLOCK_COMPANDING_MODE(hsai->Init.CompandingMode)); + assert_param(IS_SAI_BLOCK_TRISTATE_MANAGEMENT(hsai->Init.TriState)); + assert_param(IS_SAI_BLOCK_SYNCEXT(hsai->Init.SynchroExt)); + assert_param(IS_SAI_BLOCK_MCK_OVERSAMPLING(hsai->Init.MckOverSampling)); + + /* Check the SAI Block Frame parameters */ + assert_param(IS_SAI_BLOCK_FRAME_LENGTH(hsai->FrameInit.FrameLength)); + assert_param(IS_SAI_BLOCK_ACTIVE_FRAME(hsai->FrameInit.ActiveFrameLength)); + assert_param(IS_SAI_BLOCK_FS_DEFINITION(hsai->FrameInit.FSDefinition)); + assert_param(IS_SAI_BLOCK_FS_POLARITY(hsai->FrameInit.FSPolarity)); + assert_param(IS_SAI_BLOCK_FS_OFFSET(hsai->FrameInit.FSOffset)); + + /* Check the SAI Block Slot parameters */ + assert_param(IS_SAI_BLOCK_FIRSTBIT_OFFSET(hsai->SlotInit.FirstBitOffset)); + assert_param(IS_SAI_BLOCK_SLOT_SIZE(hsai->SlotInit.SlotSize)); + assert_param(IS_SAI_BLOCK_SLOT_NUMBER(hsai->SlotInit.SlotNumber)); + assert_param(IS_SAI_SLOT_ACTIVE(hsai->SlotInit.SlotActive)); + + /* Check the SAI PDM parameters */ + assert_param(IS_FUNCTIONAL_STATE(hsai->Init.PdmInit.Activation)); + if (hsai->Init.PdmInit.Activation == ENABLE) + { + assert_param(IS_SAI_PDM_MIC_PAIRS_NUMBER(hsai->Init.PdmInit.MicPairsNbr)); + assert_param(IS_SAI_PDM_CLOCK_ENABLE(hsai->Init.PdmInit.ClockEnable)); + /* Check that SAI sub-block is SAI1 or SAI4 sub-block A, in master RX mode with free protocol */ +#if defined(SAI4) + if (((hsai->Instance != SAI1_Block_A) && (hsai->Instance != SAI4_Block_A)) || + (hsai->Init.AudioMode != SAI_MODEMASTER_RX) || + (hsai->Init.Protocol != SAI_FREE_PROTOCOL)) + { + return HAL_ERROR; + } +#else + if ((hsai->Instance != SAI1_Block_A) || + (hsai->Init.AudioMode != SAI_MODEMASTER_RX) || + (hsai->Init.Protocol != SAI_FREE_PROTOCOL)) + { + return HAL_ERROR; + } +#endif /* SAI4 */ + } + + /* Get the SAI base address according to the SAI handle */ + if ((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B)) + { + SaiBaseAddress = SAI1; + } +#if defined(SAI2) + else if ((hsai->Instance == SAI2_Block_A) || (hsai->Instance == SAI2_Block_B)) + { + SaiBaseAddress = SAI2; + } +#endif /* SAI2 */ +#if defined(SAI3) + else if ((hsai->Instance == SAI3_Block_A) || (hsai->Instance == SAI3_Block_B)) + { + SaiBaseAddress = SAI3; + } +#endif /* SAI3 */ +#if defined(SAI4) + else if ((hsai->Instance == SAI4_Block_A) || (hsai->Instance == SAI4_Block_B)) + { + SaiBaseAddress = SAI4; + } +#endif /* SAI4 */ + else + { + return HAL_ERROR; + } + + if (hsai->State == HAL_SAI_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hsai->Lock = HAL_UNLOCKED; + +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + /* Reset callback pointers to the weak predefined callbacks */ + hsai->RxCpltCallback = HAL_SAI_RxCpltCallback; + hsai->RxHalfCpltCallback = HAL_SAI_RxHalfCpltCallback; + hsai->TxCpltCallback = HAL_SAI_TxCpltCallback; + hsai->TxHalfCpltCallback = HAL_SAI_TxHalfCpltCallback; + hsai->ErrorCallback = HAL_SAI_ErrorCallback; + + /* Init the low level hardware : GPIO, CLOCK, NVIC and DMA */ + if (hsai->MspInitCallback == NULL) + { + hsai->MspInitCallback = HAL_SAI_MspInit; + } + hsai->MspInitCallback(hsai); +#else + /* Init the low level hardware : GPIO, CLOCK, NVIC and DMA */ + HAL_SAI_MspInit(hsai); +#endif + } + + /* Disable the selected SAI peripheral */ + if(SAI_Disable(hsai) != HAL_OK) + { + return HAL_ERROR; + } + + hsai->State = HAL_SAI_STATE_BUSY; + + /* SAI Block Synchro Configuration -----------------------------------------*/ + /* This setting must be done with both audio block (A & B) disabled */ + switch (hsai->Init.SynchroExt) + { + case SAI_SYNCEXT_DISABLE : + tmpregisterGCR = 0; + break; + case SAI_SYNCEXT_OUTBLOCKA_ENABLE : + tmpregisterGCR = SAI_GCR_SYNCOUT_0; + break; + case SAI_SYNCEXT_OUTBLOCKB_ENABLE : + tmpregisterGCR = SAI_GCR_SYNCOUT_1; + break; + default: + tmpregisterGCR = 0; + break; + } + + switch (hsai->Init.Synchro) + { + case SAI_ASYNCHRONOUS : + syncen_bits = 0; + break; + case SAI_SYNCHRONOUS : + syncen_bits = SAI_xCR1_SYNCEN_0; + break; + case SAI_SYNCHRONOUS_EXT_SAI1 : + syncen_bits = SAI_xCR1_SYNCEN_1; + break; +#if defined(SAI2) + case SAI_SYNCHRONOUS_EXT_SAI2 : + syncen_bits = SAI_xCR1_SYNCEN_1; + tmpregisterGCR |= SAI_GCR_SYNCIN_0; + break; +#endif /* SAI2 */ +#if defined(SAI3) + case SAI_SYNCHRONOUS_EXT_SAI3 : + syncen_bits = SAI_xCR1_SYNCEN_1; + tmpregisterGCR |= SAI_GCR_SYNCIN_1; + break; +#endif /* SAI3 */ +#if defined(SAI4) + case SAI_SYNCHRONOUS_EXT_SAI4 : + syncen_bits = SAI_xCR1_SYNCEN_1; + tmpregisterGCR |= (SAI_GCR_SYNCIN_1 | SAI_GCR_SYNCIN_0); + break; +#endif /* SAI4 */ + default: + syncen_bits = 0; + break; + } + + /* Set the SAI Block Synchro Configuration */ + SaiBaseAddress->GCR = tmpregisterGCR; + + if (hsai->Init.AudioFrequency != SAI_AUDIO_FREQUENCY_MCKDIV) + { + uint32_t freq = 0; + uint32_t tmpval; + + /* In this case, the MCKDIV value is calculated to get AudioFrequency */ + if ((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B)) + { + freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI1); + } + +#if defined(SAI2) +#if defined(RCC_PERIPHCLK_SAI2) + if ((hsai->Instance == SAI2_Block_A) || (hsai->Instance == SAI2_Block_B)) + { + freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI2); + } +#else + if (hsai->Instance == SAI2_Block_A) + { + freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI2A); + } + if (hsai->Instance == SAI2_Block_B) + { + freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI2B); + } +#endif /* RCC_PERIPHCLK_SAI2 */ +#endif /* SAI2 */ + +#if defined(SAI3) + if ((hsai->Instance == SAI3_Block_A) || (hsai->Instance == SAI3_Block_B)) + { + freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI3); + } +#endif /* SAI3 */ +#if defined(SAI4) + if (hsai->Instance == SAI4_Block_A) + { + freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI4A); + } + if (hsai->Instance == SAI4_Block_B) + { + freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI4B); + } +#endif /* SAI4 */ + + /* Configure Master Clock Divider using the following formula : + - If NODIV = 1 : + MCKDIV[5:0] = SAI_CK_x / (FS * (FRL + 1)) + - If NODIV = 0 : + MCKDIV[5:0] = SAI_CK_x / (FS * (OSR + 1) * 256) */ + if (hsai->Init.NoDivider == SAI_MASTERDIVIDER_DISABLE) + { + /* NODIV = 1 */ + uint32_t tmpframelength; + + if (hsai->Init.Protocol == SAI_SPDIF_PROTOCOL) + { + /* For SPDIF protocol, frame length is set by hardware to 64 */ + tmpframelength = SAI_SPDIF_FRAME_LENGTH; + } + else if (hsai->Init.Protocol == SAI_AC97_PROTOCOL) + { + /* For AC97 protocol, frame length is set by hardware to 256 */ + tmpframelength = SAI_AC97_FRAME_LENGTH; + } + else + { + /* For free protocol, frame length is set by user */ + tmpframelength = hsai->FrameInit.FrameLength; + } + + /* (freq x 10) to keep Significant digits */ + tmpval = (freq * 10U) / (hsai->Init.AudioFrequency * tmpframelength); + } + else + { + /* NODIV = 0 */ + uint32_t tmposr; + tmposr = (hsai->Init.MckOverSampling == SAI_MCK_OVERSAMPLING_ENABLE) ? 2U : 1U; + /* (freq x 10) to keep Significant digits */ + tmpval = (freq * 10U) / (hsai->Init.AudioFrequency * tmposr * 256U); + } + hsai->Init.Mckdiv = tmpval / 10U; + + /* Round result to the nearest integer */ + if ((tmpval % 10U) > 8U) + { + hsai->Init.Mckdiv += 1U; + } + + /* For SPDIF protocol, SAI shall provide a bit clock twice faster the symbol-rate */ + if (hsai->Init.Protocol == SAI_SPDIF_PROTOCOL) + { + hsai->Init.Mckdiv = hsai->Init.Mckdiv >> 1; + } + } + + /* Check the SAI Block master clock divider parameter */ + assert_param(IS_SAI_BLOCK_MASTER_DIVIDER(hsai->Init.Mckdiv)); + + /* Compute CKSTR bits of SAI CR1 according ClockStrobing and AudioMode */ + if ((hsai->Init.AudioMode == SAI_MODEMASTER_TX) || (hsai->Init.AudioMode == SAI_MODESLAVE_TX)) + { + /* Transmit */ + ckstr_bits = (hsai->Init.ClockStrobing == SAI_CLOCKSTROBING_RISINGEDGE) ? 0U : SAI_xCR1_CKSTR; + } + else + { + /* Receive */ + ckstr_bits = (hsai->Init.ClockStrobing == SAI_CLOCKSTROBING_RISINGEDGE) ? SAI_xCR1_CKSTR : 0U; + } + + /* SAI Block Configuration -------------------------------------------------*/ + /* SAI CR1 Configuration */ +#if defined(SAI_VER_V2_X) /* SAI Peripheral version depends on STM32H7 device revision ID */ + + if (HAL_GetREVID() >= REV_ID_B) /* STM32H7xx Rev.B and above */ + { + hsai->Instance->CR1 &= ~(SAI_xCR1_MODE | SAI_xCR1_PRTCFG | SAI_xCR1_DS | \ + SAI_xCR1_LSBFIRST | SAI_xCR1_CKSTR | SAI_xCR1_SYNCEN | \ + SAI_xCR1_MONO | SAI_xCR1_OUTDRIV | SAI_xCR1_DMAEN | \ + SAI_xCR1_NODIV | SAI_xCR1_MCKDIV | SAI_xCR1_OSR | \ + SAI_xCR1_MCKEN); + + hsai->Instance->CR1 |= (hsai->Init.AudioMode | hsai->Init.Protocol | \ + hsai->Init.DataSize | hsai->Init.FirstBit | \ + ckstr_bits | syncen_bits | \ + hsai->Init.MonoStereoMode | hsai->Init.OutputDrive | \ + hsai->Init.NoDivider | (hsai->Init.Mckdiv << 20) | \ + hsai->Init.MckOverSampling | hsai->Init.MckOutput); + } + else /* STM32H7xx Rev.Y */ + { + hsai->Instance->CR1 &= ~(SAI_xCR1_MODE | SAI_xCR1_PRTCFG | SAI_xCR1_DS | \ + SAI_xCR1_LSBFIRST | SAI_xCR1_CKSTR | SAI_xCR1_SYNCEN | \ + SAI_xCR1_MONO | SAI_xCR1_OUTDRIV | SAI_xCR1_DMAEN | \ + SAI_xCR1_NODIV | SAI_xCR1_MCKDIV | SAI_xCR1_OSR); + + hsai->Instance->CR1 |= (hsai->Init.AudioMode | hsai->Init.Protocol | \ + hsai->Init.DataSize | hsai->Init.FirstBit | \ + ckstr_bits | syncen_bits | \ + hsai->Init.MonoStereoMode | hsai->Init.OutputDrive | \ + hsai->Init.NoDivider | (hsai->Init.Mckdiv << 20) | \ + hsai->Init.MckOverSampling); + } +#else /* SAI_VER_V2_1*/ + hsai->Instance->CR1 &= ~(SAI_xCR1_MODE | SAI_xCR1_PRTCFG | SAI_xCR1_DS | \ + SAI_xCR1_LSBFIRST | SAI_xCR1_CKSTR | SAI_xCR1_SYNCEN | \ + SAI_xCR1_MONO | SAI_xCR1_OUTDRIV | SAI_xCR1_DMAEN | \ + SAI_xCR1_NODIV | SAI_xCR1_MCKDIV | SAI_xCR1_OSR | \ + SAI_xCR1_MCKEN); + + hsai->Instance->CR1 |= (hsai->Init.AudioMode | hsai->Init.Protocol | \ + hsai->Init.DataSize | hsai->Init.FirstBit | \ + ckstr_bits | syncen_bits | \ + hsai->Init.MonoStereoMode | hsai->Init.OutputDrive | \ + hsai->Init.NoDivider | (hsai->Init.Mckdiv << 20) | \ + hsai->Init.MckOverSampling | hsai->Init.MckOutput); +#endif /* SAI_VER_V2_X */ + + /* SAI CR2 Configuration */ + hsai->Instance->CR2 &= ~(SAI_xCR2_FTH | SAI_xCR2_FFLUSH | SAI_xCR2_COMP | SAI_xCR2_CPL); + hsai->Instance->CR2 |= (hsai->Init.FIFOThreshold | hsai->Init.CompandingMode | hsai->Init.TriState); + + /* SAI Frame Configuration -----------------------------------------*/ + hsai->Instance->FRCR &= (~(SAI_xFRCR_FRL | SAI_xFRCR_FSALL | SAI_xFRCR_FSDEF | \ + SAI_xFRCR_FSPOL | SAI_xFRCR_FSOFF)); + hsai->Instance->FRCR |= ((hsai->FrameInit.FrameLength - 1U) | + hsai->FrameInit.FSOffset | + hsai->FrameInit.FSDefinition | + hsai->FrameInit.FSPolarity | + ((hsai->FrameInit.ActiveFrameLength - 1U) << 8)); + + /* SAI Block_x SLOT Configuration ------------------------------------------*/ + /* This register has no meaning in AC 97 and SPDIF audio protocol */ + hsai->Instance->SLOTR &= (~(SAI_xSLOTR_FBOFF | SAI_xSLOTR_SLOTSZ | \ + SAI_xSLOTR_NBSLOT | SAI_xSLOTR_SLOTEN)); + + hsai->Instance->SLOTR |= hsai->SlotInit.FirstBitOffset | hsai->SlotInit.SlotSize | \ + (hsai->SlotInit.SlotActive << 16) | ((hsai->SlotInit.SlotNumber - 1U) << 8); + + /* SAI PDM Configuration ---------------------------------------------------*/ +#if defined(SAI4) + if ((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI4_Block_A)) +#else + if (hsai->Instance == SAI1_Block_A) +#endif /* SAI4 */ + { + /* Disable PDM interface */ + SaiBaseAddress->PDMCR &= ~(SAI_PDMCR_PDMEN); + if (hsai->Init.PdmInit.Activation == ENABLE) + { + /* Configure and enable PDM interface */ + SaiBaseAddress->PDMCR = (hsai->Init.PdmInit.ClockEnable | + ((hsai->Init.PdmInit.MicPairsNbr - 1U) << SAI_PDMCR_MICNBR_Pos)); + SaiBaseAddress->PDMCR |= SAI_PDMCR_PDMEN; + } + } + + /* Initialize the error code */ + hsai->ErrorCode = HAL_SAI_ERROR_NONE; + + /* Initialize the SAI state */ + hsai->State = HAL_SAI_STATE_READY; + + /* Release Lock */ + __HAL_UNLOCK(hsai); + + return HAL_OK; +} + +/** + * @brief DeInitialize the SAI peripheral. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_DeInit(SAI_HandleTypeDef *hsai) +{ + SAI_TypeDef *SaiBaseAddress; + + /* Check the SAI handle allocation */ + if (hsai == NULL) + { + return HAL_ERROR; + } + + hsai->State = HAL_SAI_STATE_BUSY; + + /* Disabled All interrupt and clear all the flag */ + hsai->Instance->IMR = 0; + hsai->Instance->CLRFR = 0xFFFFFFFFU; + + /* Disable the SAI */ + if (SAI_Disable(hsai) != HAL_OK) + { + /* Reset SAI state to ready */ + hsai->State = HAL_SAI_STATE_READY; + + /* Release Lock */ + __HAL_UNLOCK(hsai); + + return HAL_ERROR; + } + + /* Flush the fifo */ + SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH); + + /* Disable SAI PDM interface */ +#if defined(SAI4) + if ((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI4_Block_A)) +#else + if (hsai->Instance == SAI1_Block_A) +#endif /* SAI4 */ + { + /* Get the SAI base address according to the SAI handle */ +#if defined(SAI4) + SaiBaseAddress = (hsai->Instance == SAI1_Block_A) ? SAI1 : SAI4; +#else + SaiBaseAddress = SAI1; +#endif /* SAI4 */ + + /* Reset PDM delays */ + SaiBaseAddress->PDMDLY = 0U; + + /* Disable PDM interface */ + SaiBaseAddress->PDMCR &= ~(SAI_PDMCR_PDMEN); + } + + /* DeInit the low level hardware: GPIO, CLOCK, NVIC and DMA */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + if (hsai->MspDeInitCallback == NULL) + { + hsai->MspDeInitCallback = HAL_SAI_MspDeInit; + } + hsai->MspDeInitCallback(hsai); +#else + HAL_SAI_MspDeInit(hsai); +#endif + + /* Initialize the error code */ + hsai->ErrorCode = HAL_SAI_ERROR_NONE; + + /* Initialize the SAI state */ + hsai->State = HAL_SAI_STATE_RESET; + + /* Release Lock */ + __HAL_UNLOCK(hsai); + + return HAL_OK; +} + +/** + * @brief Initialize the SAI MSP. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +__weak void HAL_SAI_MspInit(SAI_HandleTypeDef *hsai) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsai); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SAI_MspInit could be implemented in the user file + */ +} + +/** + * @brief DeInitialize the SAI MSP. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +__weak void HAL_SAI_MspDeInit(SAI_HandleTypeDef *hsai) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsai); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SAI_MspDeInit could be implemented in the user file + */ +} + +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) +/** + * @brief Register a user SAI callback + * to be used instead of the weak predefined callback. + * @param hsai SAI handle. + * @param CallbackID ID of the callback to be registered. + * This parameter can be one of the following values: + * @arg @ref HAL_SAI_RX_COMPLETE_CB_ID receive complete callback ID. + * @arg @ref HAL_SAI_RX_HALFCOMPLETE_CB_ID receive half complete callback ID. + * @arg @ref HAL_SAI_TX_COMPLETE_CB_ID transmit complete callback ID. + * @arg @ref HAL_SAI_TX_HALFCOMPLETE_CB_ID transmit half complete callback ID. + * @arg @ref HAL_SAI_ERROR_CB_ID error callback ID. + * @arg @ref HAL_SAI_MSPINIT_CB_ID MSP init callback ID. + * @arg @ref HAL_SAI_MSPDEINIT_CB_ID MSP de-init callback ID. + * @param pCallback pointer to the callback function. + * @retval HAL status. + */ +HAL_StatusTypeDef HAL_SAI_RegisterCallback(SAI_HandleTypeDef *hsai, + HAL_SAI_CallbackIDTypeDef CallbackID, + pSAI_CallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + /* update the error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_INVALID_CALLBACK; + /* update return status */ + status = HAL_ERROR; + } + else + { + if (HAL_SAI_STATE_READY == hsai->State) + { + switch (CallbackID) + { + case HAL_SAI_RX_COMPLETE_CB_ID : + hsai->RxCpltCallback = pCallback; + break; + case HAL_SAI_RX_HALFCOMPLETE_CB_ID : + hsai->RxHalfCpltCallback = pCallback; + break; + case HAL_SAI_TX_COMPLETE_CB_ID : + hsai->TxCpltCallback = pCallback; + break; + case HAL_SAI_TX_HALFCOMPLETE_CB_ID : + hsai->TxHalfCpltCallback = pCallback; + break; + case HAL_SAI_ERROR_CB_ID : + hsai->ErrorCallback = pCallback; + break; + case HAL_SAI_MSPINIT_CB_ID : + hsai->MspInitCallback = pCallback; + break; + case HAL_SAI_MSPDEINIT_CB_ID : + hsai->MspDeInitCallback = pCallback; + break; + default : + /* update the error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_INVALID_CALLBACK; + /* update return status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_SAI_STATE_RESET == hsai->State) + { + switch (CallbackID) + { + case HAL_SAI_MSPINIT_CB_ID : + hsai->MspInitCallback = pCallback; + break; + case HAL_SAI_MSPDEINIT_CB_ID : + hsai->MspDeInitCallback = pCallback; + break; + default : + /* update the error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_INVALID_CALLBACK; + /* update return status */ + status = HAL_ERROR; + break; + } + } + else + { + /* update the error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_INVALID_CALLBACK; + /* update return status */ + status = HAL_ERROR; + } + } + return status; +} + +/** + * @brief Unregister a user SAI callback. + * SAI callback is redirected to the weak predefined callback. + * @param hsai SAI handle. + * @param CallbackID ID of the callback to be unregistered. + * This parameter can be one of the following values: + * @arg @ref HAL_SAI_RX_COMPLETE_CB_ID receive complete callback ID. + * @arg @ref HAL_SAI_RX_HALFCOMPLETE_CB_ID receive half complete callback ID. + * @arg @ref HAL_SAI_TX_COMPLETE_CB_ID transmit complete callback ID. + * @arg @ref HAL_SAI_TX_HALFCOMPLETE_CB_ID transmit half complete callback ID. + * @arg @ref HAL_SAI_ERROR_CB_ID error callback ID. + * @arg @ref HAL_SAI_MSPINIT_CB_ID MSP init callback ID. + * @arg @ref HAL_SAI_MSPDEINIT_CB_ID MSP de-init callback ID. + * @retval HAL status. + */ +HAL_StatusTypeDef HAL_SAI_UnRegisterCallback(SAI_HandleTypeDef *hsai, + HAL_SAI_CallbackIDTypeDef CallbackID) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (HAL_SAI_STATE_READY == hsai->State) + { + switch (CallbackID) + { + case HAL_SAI_RX_COMPLETE_CB_ID : + hsai->RxCpltCallback = HAL_SAI_RxCpltCallback; + break; + case HAL_SAI_RX_HALFCOMPLETE_CB_ID : + hsai->RxHalfCpltCallback = HAL_SAI_RxHalfCpltCallback; + break; + case HAL_SAI_TX_COMPLETE_CB_ID : + hsai->TxCpltCallback = HAL_SAI_TxCpltCallback; + break; + case HAL_SAI_TX_HALFCOMPLETE_CB_ID : + hsai->TxHalfCpltCallback = HAL_SAI_TxHalfCpltCallback; + break; + case HAL_SAI_ERROR_CB_ID : + hsai->ErrorCallback = HAL_SAI_ErrorCallback; + break; + case HAL_SAI_MSPINIT_CB_ID : + hsai->MspInitCallback = HAL_SAI_MspInit; + break; + case HAL_SAI_MSPDEINIT_CB_ID : + hsai->MspDeInitCallback = HAL_SAI_MspDeInit; + break; + default : + /* update the error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_INVALID_CALLBACK; + /* update return status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_SAI_STATE_RESET == hsai->State) + { + switch (CallbackID) + { + case HAL_SAI_MSPINIT_CB_ID : + hsai->MspInitCallback = HAL_SAI_MspInit; + break; + case HAL_SAI_MSPDEINIT_CB_ID : + hsai->MspDeInitCallback = HAL_SAI_MspDeInit; + break; + default : + /* update the error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_INVALID_CALLBACK; + /* update return status */ + status = HAL_ERROR; + break; + } + } + else + { + /* update the error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_INVALID_CALLBACK; + /* update return status */ + status = HAL_ERROR; + } + return status; +} +#endif /* USE_HAL_SAI_REGISTER_CALLBACKS */ + +/** + * @} + */ + +/** @defgroup SAI_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 SAI data + transfers. + + (+) There are two modes 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 startup. + The end of the data processing will be indicated through the + dedicated SAI IRQ when using Interrupt mode or the DMA IRQ when + using DMA mode. + + (+) Blocking mode functions are : + (++) HAL_SAI_Transmit() + (++) HAL_SAI_Receive() + + (+) Non Blocking mode functions with Interrupt are : + (++) HAL_SAI_Transmit_IT() + (++) HAL_SAI_Receive_IT() + + (+) Non Blocking mode functions with DMA are : + (++) HAL_SAI_Transmit_DMA() + (++) HAL_SAI_Receive_DMA() + + (+) A set of Transfer Complete Callbacks are provided in non Blocking mode: + (++) HAL_SAI_TxCpltCallback() + (++) HAL_SAI_RxCpltCallback() + (++) HAL_SAI_ErrorCallback() + +@endverbatim + * @{ + */ + +/** + * @brief Transmit an amount of data in blocking mode. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param pData Pointer to data buffer + * @param Size Amount of data to be sent + * @param Timeout Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_Transmit(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + uint32_t tickstart = HAL_GetTick(); + uint32_t temp; + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hsai->State == HAL_SAI_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsai); + + hsai->XferSize = Size; + hsai->XferCount = Size; + hsai->pBuffPtr = pData; + hsai->State = HAL_SAI_STATE_BUSY_TX; + hsai->ErrorCode = HAL_SAI_ERROR_NONE; + + /* Check if the SAI is already enabled */ + if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0U) + { + /* fill the fifo with data before to enabled the SAI */ + SAI_FillFifo(hsai); + /* Enable SAI peripheral */ + __HAL_SAI_ENABLE(hsai); + } + + while (hsai->XferCount > 0U) + { + /* Write data if the FIFO is not full */ + if ((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_FULL) + { + if ((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING)) + { + hsai->Instance->DR = *hsai->pBuffPtr; + hsai->pBuffPtr++; + } + else if (hsai->Init.DataSize <= SAI_DATASIZE_16) + { + temp = (uint32_t)(*hsai->pBuffPtr); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 8); + hsai->pBuffPtr++; + hsai->Instance->DR = temp; + } + else + { + temp = (uint32_t)(*hsai->pBuffPtr); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 8); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 16); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 24); + hsai->pBuffPtr++; + hsai->Instance->DR = temp; + } + hsai->XferCount--; + } + else + { + /* Check for the Timeout */ + if ((((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U)) && (Timeout != HAL_MAX_DELAY)) + { + /* Update error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT; + + /* Clear all the flags */ + hsai->Instance->CLRFR = 0xFFFFFFFFU; + + /* Disable SAI peripheral */ + /* No need to check return value because state update, unlock and error return will be performed later */ + (void) SAI_Disable(hsai); + + /* Flush the fifo */ + SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH); + + /* Change the SAI state */ + hsai->State = HAL_SAI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_ERROR; + } + } + } + + hsai->State = HAL_SAI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in blocking mode. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI 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_SAI_Receive(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + uint32_t tickstart = HAL_GetTick(); + uint32_t temp; + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hsai->State == HAL_SAI_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsai); + + hsai->pBuffPtr = pData; + hsai->XferSize = Size; + hsai->XferCount = Size; + hsai->State = HAL_SAI_STATE_BUSY_RX; + hsai->ErrorCode = HAL_SAI_ERROR_NONE; + + /* Check if the SAI is already enabled */ + if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0U) + { + /* Enable SAI peripheral */ + __HAL_SAI_ENABLE(hsai); + } + + /* Receive data */ + while (hsai->XferCount > 0U) + { + if ((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_EMPTY) + { + if ((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING)) + { + *hsai->pBuffPtr = (uint8_t)hsai->Instance->DR; + hsai->pBuffPtr++; + } + else if (hsai->Init.DataSize <= SAI_DATASIZE_16) + { + temp = hsai->Instance->DR; + *hsai->pBuffPtr = (uint8_t)temp; + hsai->pBuffPtr++; + *hsai->pBuffPtr = (uint8_t)(temp >> 8); + hsai->pBuffPtr++; + } + else + { + temp = hsai->Instance->DR; + *hsai->pBuffPtr = (uint8_t)temp; + hsai->pBuffPtr++; + *hsai->pBuffPtr = (uint8_t)(temp >> 8); + hsai->pBuffPtr++; + *hsai->pBuffPtr = (uint8_t)(temp >> 16); + hsai->pBuffPtr++; + *hsai->pBuffPtr = (uint8_t)(temp >> 24); + hsai->pBuffPtr++; + } + hsai->XferCount--; + } + else + { + /* Check for the Timeout */ + if ((((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U)) && (Timeout != HAL_MAX_DELAY)) + { + /* Update error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT; + + /* Clear all the flags */ + hsai->Instance->CLRFR = 0xFFFFFFFFU; + + /* Disable SAI peripheral */ + /* No need to check return value because state update, unlock and error return will be performed later */ + (void) SAI_Disable(hsai); + + /* Flush the fifo */ + SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH); + + /* Change the SAI state */ + hsai->State = HAL_SAI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_ERROR; + } + } + } + + hsai->State = HAL_SAI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Transmit an amount of data in non-blocking mode with Interrupt. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param pData Pointer to data buffer + * @param Size Amount of data to be sent + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_Transmit_IT(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size) +{ + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hsai->State == HAL_SAI_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsai); + + hsai->pBuffPtr = pData; + hsai->XferSize = Size; + hsai->XferCount = Size; + hsai->ErrorCode = HAL_SAI_ERROR_NONE; + hsai->State = HAL_SAI_STATE_BUSY_TX; + + if ((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING)) + { + hsai->InterruptServiceRoutine = SAI_Transmit_IT8Bit; + } + else if (hsai->Init.DataSize <= SAI_DATASIZE_16) + { + hsai->InterruptServiceRoutine = SAI_Transmit_IT16Bit; + } + else + { + hsai->InterruptServiceRoutine = SAI_Transmit_IT32Bit; + } + + /* Fill the fifo before starting the communication */ + SAI_FillFifo(hsai); + + /* Enable FRQ and OVRUDR interrupts */ + __HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT)); + + /* Check if the SAI is already enabled */ + if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0U) + { + /* Enable SAI peripheral */ + __HAL_SAI_ENABLE(hsai); + } + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in non-blocking mode with Interrupt. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param pData Pointer to data buffer + * @param Size Amount of data to be received + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_Receive_IT(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size) +{ + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hsai->State == HAL_SAI_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsai); + + hsai->pBuffPtr = pData; + hsai->XferSize = Size; + hsai->XferCount = Size; + hsai->ErrorCode = HAL_SAI_ERROR_NONE; + hsai->State = HAL_SAI_STATE_BUSY_RX; + + if ((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING)) + { + hsai->InterruptServiceRoutine = SAI_Receive_IT8Bit; + } + else if (hsai->Init.DataSize <= SAI_DATASIZE_16) + { + hsai->InterruptServiceRoutine = SAI_Receive_IT16Bit; + } + else + { + hsai->InterruptServiceRoutine = SAI_Receive_IT32Bit; + } + + /* Enable TXE and OVRUDR interrupts */ + __HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT)); + + /* Check if the SAI is already enabled */ + if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0U) + { + /* Enable SAI peripheral */ + __HAL_SAI_ENABLE(hsai); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Pause the audio stream playing from the Media. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_DMAPause(SAI_HandleTypeDef *hsai) +{ + /* Process Locked */ + __HAL_LOCK(hsai); + + /* Pause the audio file playing by disabling the SAI DMA requests */ + hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN; + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_OK; +} + +/** + * @brief Resume the audio stream playing from the Media. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_DMAResume(SAI_HandleTypeDef *hsai) +{ + /* Process Locked */ + __HAL_LOCK(hsai); + + /* Enable the SAI DMA requests */ + hsai->Instance->CR1 |= SAI_xCR1_DMAEN; + + /* If the SAI peripheral is still not enabled, enable it */ + if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0U) + { + /* Enable SAI peripheral */ + __HAL_SAI_ENABLE(hsai); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_OK; +} + +/** + * @brief Stop the audio stream playing from the Media. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_DMAStop(SAI_HandleTypeDef *hsai) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process Locked */ + __HAL_LOCK(hsai); + + /* Disable the SAI DMA request */ + hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN; + + /* Abort the SAI Tx DMA Stream */ + if ((hsai->State == HAL_SAI_STATE_BUSY_TX) && (hsai->hdmatx != NULL)) + { + if (HAL_DMA_Abort(hsai->hdmatx) != HAL_OK) + { + /* If the DMA Tx errorCode is different from DMA No Transfer then return Error */ + if (hsai->hdmatx->ErrorCode != HAL_DMA_ERROR_NO_XFER) + { + status = HAL_ERROR; + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + } + } + } + + /* Abort the SAI Rx DMA Stream */ + if ((hsai->State == HAL_SAI_STATE_BUSY_RX) && (hsai->hdmarx != NULL)) + { + if (HAL_DMA_Abort(hsai->hdmarx) != HAL_OK) + { + /* If the DMA Rx errorCode is different from DMA No Transfer then return Error */ + if (hsai->hdmarx->ErrorCode != HAL_DMA_ERROR_NO_XFER) + { + status = HAL_ERROR; + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + } + } + } + + /* Disable SAI peripheral */ + if (SAI_Disable(hsai) != HAL_OK) + { + status = HAL_ERROR; + } + + /* Flush the fifo */ + SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH); + + /* Set hsai state to ready */ + hsai->State = HAL_SAI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return status; +} + +/** + * @brief Abort the current transfer and disable the SAI. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_Abort(SAI_HandleTypeDef *hsai) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process Locked */ + __HAL_LOCK(hsai); + + /* Check SAI DMA is enabled or not */ + if ((hsai->Instance->CR1 & SAI_xCR1_DMAEN) == SAI_xCR1_DMAEN) + { + /* Disable the SAI DMA request */ + hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN; + + /* Abort the SAI Tx DMA Stream */ + if ((hsai->State == HAL_SAI_STATE_BUSY_TX)&& (hsai->hdmatx != NULL)) + { + if (HAL_DMA_Abort(hsai->hdmatx) != HAL_OK) + { + /* If the DMA Tx errorCode is different from DMA No Transfer then return Error */ + if (hsai->hdmatx->ErrorCode != HAL_DMA_ERROR_NO_XFER) + { + status = HAL_ERROR; + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + } + } + } + + /* Abort the SAI Rx DMA Stream */ + if ((hsai->State == HAL_SAI_STATE_BUSY_RX) && (hsai->hdmarx != NULL)) + { + if (HAL_DMA_Abort(hsai->hdmarx) != HAL_OK) + { + /* If the DMA Rx errorCode is different from DMA No Transfer then return Error */ + if (hsai->hdmarx->ErrorCode != HAL_DMA_ERROR_NO_XFER) + { + status = HAL_ERROR; + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + } + } + } + } + + /* Disabled All interrupt and clear all the flag */ + hsai->Instance->IMR = 0; + hsai->Instance->CLRFR = 0xFFFFFFFFU; + + /* Disable SAI peripheral */ + if (SAI_Disable(hsai) != HAL_OK) + { + status = HAL_ERROR; + } + + /* Flush the fifo */ + SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH); + + /* Set hsai state to ready */ + hsai->State = HAL_SAI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return status; +} + +/** + * @brief Transmit an amount of data in non-blocking mode with DMA. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param pData Pointer to data buffer + * @param Size Amount of data to be sent + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_Transmit_DMA(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size) +{ + uint32_t tickstart = HAL_GetTick(); + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hsai->State == HAL_SAI_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsai); + + hsai->pBuffPtr = pData; + hsai->XferSize = Size; + hsai->XferCount = Size; + hsai->ErrorCode = HAL_SAI_ERROR_NONE; + hsai->State = HAL_SAI_STATE_BUSY_TX; + + /* Set the SAI Tx DMA Half transfer complete callback */ + hsai->hdmatx->XferHalfCpltCallback = SAI_DMATxHalfCplt; + + /* Set the SAI TxDMA transfer complete callback */ + hsai->hdmatx->XferCpltCallback = SAI_DMATxCplt; + + /* Set the DMA error callback */ + hsai->hdmatx->XferErrorCallback = SAI_DMAError; + + /* Set the DMA Tx abort callback */ + hsai->hdmatx->XferAbortCallback = NULL; + + /* Enable the Tx DMA Stream */ + if (HAL_DMA_Start_IT(hsai->hdmatx, (uint32_t)hsai->pBuffPtr, (uint32_t)&hsai->Instance->DR, hsai->XferSize) != HAL_OK) + { + __HAL_UNLOCK(hsai); + return HAL_ERROR; + } + + /* Enable the interrupts for error handling */ + __HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA)); + + /* Enable SAI Tx DMA Request */ + hsai->Instance->CR1 |= SAI_xCR1_DMAEN; + + /* Wait until FIFO is not empty */ + while ((hsai->Instance->SR & SAI_xSR_FLVL) == SAI_FIFOSTATUS_EMPTY) + { + /* Check for the Timeout */ + if ((HAL_GetTick() - tickstart) > SAI_LONG_TIMEOUT) + { + /* Update error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT; + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_TIMEOUT; + } + } + + /* Check if the SAI is already enabled */ + if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0U) + { + /* Enable SAI peripheral */ + __HAL_SAI_ENABLE(hsai); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in non-blocking mode with DMA. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param pData Pointer to data buffer + * @param Size Amount of data to be received + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_Receive_DMA(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size) +{ + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hsai->State == HAL_SAI_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsai); + + hsai->pBuffPtr = pData; + hsai->XferSize = Size; + hsai->XferCount = Size; + hsai->ErrorCode = HAL_SAI_ERROR_NONE; + hsai->State = HAL_SAI_STATE_BUSY_RX; + + /* Set the SAI Rx DMA Half transfer complete callback */ + hsai->hdmarx->XferHalfCpltCallback = SAI_DMARxHalfCplt; + + /* Set the SAI Rx DMA transfer complete callback */ + hsai->hdmarx->XferCpltCallback = SAI_DMARxCplt; + + /* Set the DMA error callback */ + hsai->hdmarx->XferErrorCallback = SAI_DMAError; + + /* Set the DMA Rx abort callback */ + hsai->hdmarx->XferAbortCallback = NULL; + + /* Enable the Rx DMA Stream */ + if (HAL_DMA_Start_IT(hsai->hdmarx, (uint32_t)&hsai->Instance->DR, (uint32_t)hsai->pBuffPtr, hsai->XferSize) != HAL_OK) + { + __HAL_UNLOCK(hsai); + return HAL_ERROR; + } + + /* Enable the interrupts for error handling */ + __HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA)); + + /* Enable SAI Rx DMA Request */ + hsai->Instance->CR1 |= SAI_xCR1_DMAEN; + + /* Check if the SAI is already enabled */ + if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0U) + { + /* Enable SAI peripheral */ + __HAL_SAI_ENABLE(hsai); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hsai); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Enable the Tx mute mode. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param val value sent during the mute @ref SAI_Block_Mute_Value + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_EnableTxMuteMode(SAI_HandleTypeDef *hsai, uint16_t val) +{ + assert_param(IS_SAI_BLOCK_MUTE_VALUE(val)); + + if (hsai->State != HAL_SAI_STATE_RESET) + { + CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTEVAL | SAI_xCR2_MUTE); + SET_BIT(hsai->Instance->CR2, SAI_xCR2_MUTE | (uint32_t)val); + return HAL_OK; + } + return HAL_ERROR; +} + +/** + * @brief Disable the Tx mute mode. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_DisableTxMuteMode(SAI_HandleTypeDef *hsai) +{ + if (hsai->State != HAL_SAI_STATE_RESET) + { + CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTEVAL | SAI_xCR2_MUTE); + return HAL_OK; + } + return HAL_ERROR; +} + +/** + * @brief Enable the Rx mute detection. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param callback function called when the mute is detected. + * @param counter number a data before mute detection max 63. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_EnableRxMuteMode(SAI_HandleTypeDef *hsai, SAIcallback callback, uint16_t counter) +{ + assert_param(IS_SAI_BLOCK_MUTE_COUNTER(counter)); + + if (hsai->State != HAL_SAI_STATE_RESET) + { + /* set the mute counter */ + CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTECNT); + SET_BIT(hsai->Instance->CR2, (uint32_t)((uint32_t)counter << SAI_xCR2_MUTECNT_Pos)); + hsai->mutecallback = callback; + /* enable the IT interrupt */ + __HAL_SAI_ENABLE_IT(hsai, SAI_IT_MUTEDET); + return HAL_OK; + } + return HAL_ERROR; +} + +/** + * @brief Disable the Rx mute detection. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SAI_DisableRxMuteMode(SAI_HandleTypeDef *hsai) +{ + if (hsai->State != HAL_SAI_STATE_RESET) + { + /* set the mutecallback to NULL */ + hsai->mutecallback = NULL; + /* enable the IT interrupt */ + __HAL_SAI_DISABLE_IT(hsai, SAI_IT_MUTEDET); + return HAL_OK; + } + return HAL_ERROR; +} + +/** + * @brief Handle SAI interrupt request. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +void HAL_SAI_IRQHandler(SAI_HandleTypeDef *hsai) +{ + if (hsai->State != HAL_SAI_STATE_RESET) + { + uint32_t itflags = hsai->Instance->SR; + uint32_t itsources = hsai->Instance->IMR; + uint32_t cr1config = hsai->Instance->CR1; + uint32_t tmperror; + + /* SAI Fifo request interrupt occurred ------------------------------------*/ + if (((itflags & SAI_xSR_FREQ) == SAI_xSR_FREQ) && ((itsources & SAI_IT_FREQ) == SAI_IT_FREQ)) + { + hsai->InterruptServiceRoutine(hsai); + } + /* SAI Overrun error interrupt occurred ----------------------------------*/ + else if (((itflags & SAI_FLAG_OVRUDR) == SAI_FLAG_OVRUDR) && ((itsources & SAI_IT_OVRUDR) == SAI_IT_OVRUDR)) + { + /* Clear the SAI Overrun flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR); + /* Get the SAI error code */ + tmperror = ((hsai->State == HAL_SAI_STATE_BUSY_RX) ? HAL_SAI_ERROR_OVR : HAL_SAI_ERROR_UDR); + /* Change the SAI error code */ + hsai->ErrorCode |= tmperror; + /* the transfer is not stopped, we will forward the information to the user and we let the user decide what needs to be done */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + /* SAI mutedet interrupt occurred ----------------------------------*/ + else if (((itflags & SAI_FLAG_MUTEDET) == SAI_FLAG_MUTEDET) && ((itsources & SAI_IT_MUTEDET) == SAI_IT_MUTEDET)) + { + /* Clear the SAI mutedet flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_MUTEDET); + /* call the call back function */ + if (hsai->mutecallback != NULL) + { + /* inform the user that an RX mute event has been detected */ + hsai->mutecallback(); + } + } + /* SAI AFSDET interrupt occurred ----------------------------------*/ + else if (((itflags & SAI_FLAG_AFSDET) == SAI_FLAG_AFSDET) && ((itsources & SAI_IT_AFSDET) == SAI_IT_AFSDET)) + { + /* Clear the SAI AFSDET flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_AFSDET); + + /* Change the SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_AFSDET; + + /* Check SAI DMA is enabled or not */ + if ((cr1config & SAI_xCR1_DMAEN) == SAI_xCR1_DMAEN) + { + /* Abort the SAI DMA Streams */ + if (hsai->hdmatx != NULL) + { + /* Set the DMA Tx abort callback */ + hsai->hdmatx->XferAbortCallback = SAI_DMAAbort; + + /* Abort DMA in IT mode */ + if (HAL_DMA_Abort_IT(hsai->hdmatx) != HAL_OK) + { + /* Update SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + + /* Call SAI error callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + if (hsai->hdmarx != NULL) + { + /* Set the DMA Rx abort callback */ + hsai->hdmarx->XferAbortCallback = SAI_DMAAbort; + + /* Abort DMA in IT mode */ + if (HAL_DMA_Abort_IT(hsai->hdmarx) != HAL_OK) + { + /* Update SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + + /* Call SAI error callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + } + else + { + /* Abort SAI */ + /* No need to check return value because HAL_SAI_ErrorCallback will be called later */ + (void) HAL_SAI_Abort(hsai); + + /* Set error callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + /* SAI LFSDET interrupt occurred ----------------------------------*/ + else if (((itflags & SAI_FLAG_LFSDET) == SAI_FLAG_LFSDET) && ((itsources & SAI_IT_LFSDET) == SAI_IT_LFSDET)) + { + /* Clear the SAI LFSDET flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_LFSDET); + + /* Change the SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_LFSDET; + + /* Check SAI DMA is enabled or not */ + if ((cr1config & SAI_xCR1_DMAEN) == SAI_xCR1_DMAEN) + { + /* Abort the SAI DMA Streams */ + if (hsai->hdmatx != NULL) + { + /* Set the DMA Tx abort callback */ + hsai->hdmatx->XferAbortCallback = SAI_DMAAbort; + + /* Abort DMA in IT mode */ + if (HAL_DMA_Abort_IT(hsai->hdmatx) != HAL_OK) + { + /* Update SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + + /* Call SAI error callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + if (hsai->hdmarx != NULL) + { + /* Set the DMA Rx abort callback */ + hsai->hdmarx->XferAbortCallback = SAI_DMAAbort; + + /* Abort DMA in IT mode */ + if (HAL_DMA_Abort_IT(hsai->hdmarx) != HAL_OK) + { + /* Update SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + + /* Call SAI error callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + } + else + { + /* Abort SAI */ + /* No need to check return value because HAL_SAI_ErrorCallback will be called later */ + (void) HAL_SAI_Abort(hsai); + + /* Set error callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + /* SAI WCKCFG interrupt occurred ----------------------------------*/ + else if (((itflags & SAI_FLAG_WCKCFG) == SAI_FLAG_WCKCFG) && ((itsources & SAI_IT_WCKCFG) == SAI_IT_WCKCFG)) + { + /* Clear the SAI WCKCFG flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_WCKCFG); + + /* Change the SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_WCKCFG; + + /* Check SAI DMA is enabled or not */ + if ((cr1config & SAI_xCR1_DMAEN) == SAI_xCR1_DMAEN) + { + /* Abort the SAI DMA Streams */ + if (hsai->hdmatx != NULL) + { + /* Set the DMA Tx abort callback */ + hsai->hdmatx->XferAbortCallback = SAI_DMAAbort; + + /* Abort DMA in IT mode */ + if (HAL_DMA_Abort_IT(hsai->hdmatx) != HAL_OK) + { + /* Update SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + + /* Call SAI error callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + if (hsai->hdmarx != NULL) + { + /* Set the DMA Rx abort callback */ + hsai->hdmarx->XferAbortCallback = SAI_DMAAbort; + + /* Abort DMA in IT mode */ + if (HAL_DMA_Abort_IT(hsai->hdmarx) != HAL_OK) + { + /* Update SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + + /* Call SAI error callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + } + else + { + /* If WCKCFG occurs, SAI audio block is automatically disabled */ + /* Disable all interrupts and clear all flags */ + hsai->Instance->IMR = 0U; + hsai->Instance->CLRFR = 0xFFFFFFFFU; + /* Set the SAI state to ready to be able to start again the process */ + hsai->State = HAL_SAI_STATE_READY; + + /* Initialize XferCount */ + hsai->XferCount = 0U; + + /* SAI error Callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + } + /* SAI CNRDY interrupt occurred ----------------------------------*/ + else if (((itflags & SAI_FLAG_CNRDY) == SAI_FLAG_CNRDY) && ((itsources & SAI_IT_CNRDY) == SAI_IT_CNRDY)) + { + /* Clear the SAI CNRDY flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_CNRDY); + /* Change the SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_CNREADY; + /* the transfer is not stopped, we will forward the information to the user and we let the user decide what needs to be done */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } + else + { + /* Nothing to do */ + } + } +} + +/** + * @brief Tx Transfer completed callback. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +__weak void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsai); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SAI_TxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Tx Transfer Half completed callback. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +__weak void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsai); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SAI_TxHalfCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Rx Transfer completed callback. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +__weak void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hsai) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsai); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SAI_RxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Rx Transfer half completed callback. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +__weak void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hsai) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsai); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SAI_RxHalfCpltCallback could be implemented in the user file + */ +} + +/** + * @brief SAI error callback. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +__weak void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsai); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SAI_ErrorCallback could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup SAI_Exported_Functions_Group3 Peripheral State functions + * @brief Peripheral State functions + * +@verbatim + =============================================================================== + ##### Peripheral State and Errors functions ##### + =============================================================================== + [..] + This subsection permits to get in run-time the status of the peripheral + and the data flow. + +@endverbatim + * @{ + */ + +/** + * @brief Return the SAI handle state. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval HAL state + */ +HAL_SAI_StateTypeDef HAL_SAI_GetState(const SAI_HandleTypeDef *hsai) +{ + return hsai->State; +} + +/** + * @brief Return the SAI error code. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for the specified SAI Block. + * @retval SAI Error Code + */ +uint32_t HAL_SAI_GetError(const SAI_HandleTypeDef *hsai) +{ + return hsai->ErrorCode; +} + +/** + * @} + */ + +/** + * @} + */ + +/** @addtogroup SAI_Private_Functions + * @brief Private functions + * @{ + */ + +/** + * @brief Initialize the SAI I2S protocol according to the specified parameters + * in the SAI_InitTypeDef and create the associated handle. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param protocol one of the supported protocol. + * @param datasize one of the supported datasize @ref SAI_Protocol_DataSize. + * @param nbslot number of slot minimum value is 2 and max is 16. + * the value must be a multiple of 2. + * @retval HAL status + */ +static HAL_StatusTypeDef SAI_InitI2S(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot) +{ + HAL_StatusTypeDef status = HAL_OK; + + hsai->Init.Protocol = SAI_FREE_PROTOCOL; + hsai->Init.FirstBit = SAI_FIRSTBIT_MSB; + /* Compute ClockStrobing according AudioMode */ + if ((hsai->Init.AudioMode == SAI_MODEMASTER_TX) || (hsai->Init.AudioMode == SAI_MODESLAVE_TX)) + { + /* Transmit */ + hsai->Init.ClockStrobing = SAI_CLOCKSTROBING_FALLINGEDGE; + } + else + { + /* Receive */ + hsai->Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE; + } + hsai->FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION; + hsai->SlotInit.SlotActive = SAI_SLOTACTIVE_ALL; + hsai->SlotInit.FirstBitOffset = 0; + hsai->SlotInit.SlotNumber = nbslot; + + /* in IS2 the number of slot must be even */ + if ((nbslot & 0x1U) != 0U) + { + return HAL_ERROR; + } + + if (protocol == SAI_I2S_STANDARD) + { + hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW; + hsai->FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT; + } + else + { + /* SAI_I2S_MSBJUSTIFIED or SAI_I2S_LSBJUSTIFIED */ + hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_HIGH; + hsai->FrameInit.FSOffset = SAI_FS_FIRSTBIT; + } + + /* Frame definition */ + switch (datasize) + { + case SAI_PROTOCOL_DATASIZE_16BIT: + hsai->Init.DataSize = SAI_DATASIZE_16; + hsai->FrameInit.FrameLength = 32U * (nbslot / 2U); + hsai->FrameInit.ActiveFrameLength = 16U * (nbslot / 2U); + hsai->SlotInit.SlotSize = SAI_SLOTSIZE_16B; + break; + case SAI_PROTOCOL_DATASIZE_16BITEXTENDED : + hsai->Init.DataSize = SAI_DATASIZE_16; + hsai->FrameInit.FrameLength = 64U * (nbslot / 2U); + hsai->FrameInit.ActiveFrameLength = 32U * (nbslot / 2U); + hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B; + break; + case SAI_PROTOCOL_DATASIZE_24BIT: + hsai->Init.DataSize = SAI_DATASIZE_24; + hsai->FrameInit.FrameLength = 64U * (nbslot / 2U); + hsai->FrameInit.ActiveFrameLength = 32U * (nbslot / 2U); + hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B; + break; + case SAI_PROTOCOL_DATASIZE_32BIT: + hsai->Init.DataSize = SAI_DATASIZE_32; + hsai->FrameInit.FrameLength = 64U * (nbslot / 2U); + hsai->FrameInit.ActiveFrameLength = 32U * (nbslot / 2U); + hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B; + break; + default : + status = HAL_ERROR; + break; + } + if (protocol == SAI_I2S_LSBJUSTIFIED) + { + if (datasize == SAI_PROTOCOL_DATASIZE_16BITEXTENDED) + { + hsai->SlotInit.FirstBitOffset = 16; + } + if (datasize == SAI_PROTOCOL_DATASIZE_24BIT) + { + hsai->SlotInit.FirstBitOffset = 8; + } + } + return status; +} + +/** + * @brief Initialize the SAI PCM protocol according to the specified parameters + * in the SAI_InitTypeDef and create the associated handle. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param protocol one of the supported protocol + * @param datasize one of the supported datasize @ref SAI_Protocol_DataSize + * @param nbslot number of slot minimum value is 1 and the max is 16. + * @retval HAL status + */ +static HAL_StatusTypeDef SAI_InitPCM(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot) +{ + HAL_StatusTypeDef status = HAL_OK; + + hsai->Init.Protocol = SAI_FREE_PROTOCOL; + hsai->Init.FirstBit = SAI_FIRSTBIT_MSB; + /* Compute ClockStrobing according AudioMode */ + if ((hsai->Init.AudioMode == SAI_MODEMASTER_TX) || (hsai->Init.AudioMode == SAI_MODESLAVE_TX)) + { + /* Transmit */ + hsai->Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE; + } + else + { + /* Receive */ + hsai->Init.ClockStrobing = SAI_CLOCKSTROBING_FALLINGEDGE; + } + hsai->FrameInit.FSDefinition = SAI_FS_STARTFRAME; + hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_HIGH; + hsai->FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT; + hsai->SlotInit.FirstBitOffset = 0; + hsai->SlotInit.SlotNumber = nbslot; + hsai->SlotInit.SlotActive = SAI_SLOTACTIVE_ALL; + + if (protocol == SAI_PCM_SHORT) + { + hsai->FrameInit.ActiveFrameLength = 1; + } + else + { + /* SAI_PCM_LONG */ + hsai->FrameInit.ActiveFrameLength = 13; + } + + switch (datasize) + { + case SAI_PROTOCOL_DATASIZE_16BIT: + hsai->Init.DataSize = SAI_DATASIZE_16; + hsai->FrameInit.FrameLength = 16U * nbslot; + hsai->SlotInit.SlotSize = SAI_SLOTSIZE_16B; + break; + case SAI_PROTOCOL_DATASIZE_16BITEXTENDED : + hsai->Init.DataSize = SAI_DATASIZE_16; + hsai->FrameInit.FrameLength = 32U * nbslot; + hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B; + break; + case SAI_PROTOCOL_DATASIZE_24BIT : + hsai->Init.DataSize = SAI_DATASIZE_24; + hsai->FrameInit.FrameLength = 32U * nbslot; + hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B; + break; + case SAI_PROTOCOL_DATASIZE_32BIT: + hsai->Init.DataSize = SAI_DATASIZE_32; + hsai->FrameInit.FrameLength = 32U * nbslot; + hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B; + break; + default : + status = HAL_ERROR; + break; + } + + return status; +} + +/** + * @brief Fill the fifo. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +static void SAI_FillFifo(SAI_HandleTypeDef *hsai) +{ + uint32_t temp; + + /* fill the fifo with data before to enabled the SAI */ + while (((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_FULL) && (hsai->XferCount > 0U)) + { + if ((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING)) + { + hsai->Instance->DR = *hsai->pBuffPtr; + hsai->pBuffPtr++; + } + else if (hsai->Init.DataSize <= SAI_DATASIZE_16) + { + temp = (uint32_t)(*hsai->pBuffPtr); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 8); + hsai->pBuffPtr++; + hsai->Instance->DR = temp; + } + else + { + temp = (uint32_t)(*hsai->pBuffPtr); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 8); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 16); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 24); + hsai->pBuffPtr++; + hsai->Instance->DR = temp; + } + hsai->XferCount--; + } +} + +/** + * @brief Return the interrupt flag to set according the SAI setup. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @param mode SAI_MODE_DMA or SAI_MODE_IT + * @retval the list of the IT flag to enable + */ +static uint32_t SAI_InterruptFlag(const SAI_HandleTypeDef *hsai, SAI_ModeTypedef mode) +{ + uint32_t tmpIT = SAI_IT_OVRUDR; + + if (mode == SAI_MODE_IT) + { + tmpIT |= SAI_IT_FREQ; + } + + if ((hsai->Init.Protocol == SAI_AC97_PROTOCOL) && + ((hsai->Init.AudioMode == SAI_MODESLAVE_RX) || (hsai->Init.AudioMode == SAI_MODEMASTER_RX))) + { + tmpIT |= SAI_IT_CNRDY; + } + + if ((hsai->Init.AudioMode == SAI_MODESLAVE_RX) || (hsai->Init.AudioMode == SAI_MODESLAVE_TX)) + { + tmpIT |= SAI_IT_AFSDET | SAI_IT_LFSDET; + } + else + { + /* hsai has been configured in master mode */ + tmpIT |= SAI_IT_WCKCFG; + } + return tmpIT; +} + +/** + * @brief Disable the SAI and wait for the disabling. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +static HAL_StatusTypeDef SAI_Disable(SAI_HandleTypeDef *hsai) +{ + uint32_t count = SAI_DEFAULT_TIMEOUT * (SystemCoreClock / 7U / 1000U); + HAL_StatusTypeDef status = HAL_OK; + + /* Disable the SAI instance */ + __HAL_SAI_DISABLE(hsai); + + do + { + /* Check for the Timeout */ + if (count == 0U) + { + /* Update error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT; + status = HAL_TIMEOUT; + break; + } + count--; + } + while ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != 0U); + + return status; +} + +/** + * @brief Tx Handler for Transmit in Interrupt mode 8-Bit transfer. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +static void SAI_Transmit_IT8Bit(SAI_HandleTypeDef *hsai) +{ + if (hsai->XferCount == 0U) + { + /* Handle the end of the transmission */ + /* Disable FREQ and OVRUDR interrupts */ + __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT)); + hsai->State = HAL_SAI_STATE_READY; +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->TxCpltCallback(hsai); +#else + HAL_SAI_TxCpltCallback(hsai); +#endif + } + else + { + /* Write data on DR register */ + hsai->Instance->DR = *hsai->pBuffPtr; + hsai->pBuffPtr++; + hsai->XferCount--; + } +} + +/** + * @brief Tx Handler for Transmit in Interrupt mode for 16-Bit transfer. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +static void SAI_Transmit_IT16Bit(SAI_HandleTypeDef *hsai) +{ + if (hsai->XferCount == 0U) + { + /* Handle the end of the transmission */ + /* Disable FREQ and OVRUDR interrupts */ + __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT)); + hsai->State = HAL_SAI_STATE_READY; +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->TxCpltCallback(hsai); +#else + HAL_SAI_TxCpltCallback(hsai); +#endif + } + else + { + /* Write data on DR register */ + uint32_t temp; + temp = (uint32_t)(*hsai->pBuffPtr); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 8); + hsai->pBuffPtr++; + hsai->Instance->DR = temp; + hsai->XferCount--; + } +} + +/** + * @brief Tx Handler for Transmit in Interrupt mode for 32-Bit transfer. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +static void SAI_Transmit_IT32Bit(SAI_HandleTypeDef *hsai) +{ + if (hsai->XferCount == 0U) + { + /* Handle the end of the transmission */ + /* Disable FREQ and OVRUDR interrupts */ + __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT)); + hsai->State = HAL_SAI_STATE_READY; +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->TxCpltCallback(hsai); +#else + HAL_SAI_TxCpltCallback(hsai); +#endif + } + else + { + /* Write data on DR register */ + uint32_t temp; + temp = (uint32_t)(*hsai->pBuffPtr); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 8); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 16); + hsai->pBuffPtr++; + temp |= ((uint32_t)(*hsai->pBuffPtr) << 24); + hsai->pBuffPtr++; + hsai->Instance->DR = temp; + hsai->XferCount--; + } +} + +/** + * @brief Rx Handler for Receive in Interrupt mode 8-Bit transfer. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +static void SAI_Receive_IT8Bit(SAI_HandleTypeDef *hsai) +{ + /* Receive data */ + *hsai->pBuffPtr = (uint8_t)hsai->Instance->DR; + hsai->pBuffPtr++; + hsai->XferCount--; + + /* Check end of the transfer */ + if (hsai->XferCount == 0U) + { + /* Disable TXE and OVRUDR interrupts */ + __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT)); + + /* Clear the SAI Overrun flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR); + + hsai->State = HAL_SAI_STATE_READY; +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->RxCpltCallback(hsai); +#else + HAL_SAI_RxCpltCallback(hsai); +#endif + } +} + +/** + * @brief Rx Handler for Receive in Interrupt mode for 16-Bit transfer. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +static void SAI_Receive_IT16Bit(SAI_HandleTypeDef *hsai) +{ + uint32_t temp; + + /* Receive data */ + temp = hsai->Instance->DR; + *hsai->pBuffPtr = (uint8_t)temp; + hsai->pBuffPtr++; + *hsai->pBuffPtr = (uint8_t)(temp >> 8); + hsai->pBuffPtr++; + hsai->XferCount--; + + /* Check end of the transfer */ + if (hsai->XferCount == 0U) + { + /* Disable TXE and OVRUDR interrupts */ + __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT)); + + /* Clear the SAI Overrun flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR); + + hsai->State = HAL_SAI_STATE_READY; +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->RxCpltCallback(hsai); +#else + HAL_SAI_RxCpltCallback(hsai); +#endif + } +} + +/** + * @brief Rx Handler for Receive in Interrupt mode for 32-Bit transfer. + * @param hsai pointer to a SAI_HandleTypeDef structure that contains + * the configuration information for SAI module. + * @retval None + */ +static void SAI_Receive_IT32Bit(SAI_HandleTypeDef *hsai) +{ + uint32_t temp; + + /* Receive data */ + temp = hsai->Instance->DR; + *hsai->pBuffPtr = (uint8_t)temp; + hsai->pBuffPtr++; + *hsai->pBuffPtr = (uint8_t)(temp >> 8); + hsai->pBuffPtr++; + *hsai->pBuffPtr = (uint8_t)(temp >> 16); + hsai->pBuffPtr++; + *hsai->pBuffPtr = (uint8_t)(temp >> 24); + hsai->pBuffPtr++; + hsai->XferCount--; + + /* Check end of the transfer */ + if (hsai->XferCount == 0U) + { + /* Disable TXE and OVRUDR interrupts */ + __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT)); + + /* Clear the SAI Overrun flag */ + __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR); + + hsai->State = HAL_SAI_STATE_READY; +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->RxCpltCallback(hsai); +#else + HAL_SAI_RxCpltCallback(hsai); +#endif + } +} + +/** + * @brief DMA SAI transmit process complete callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma) +{ + SAI_HandleTypeDef *hsai = (SAI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + if (hdma->Init.Mode != DMA_CIRCULAR) + { + hsai->XferCount = 0; + + /* Disable SAI Tx DMA Request */ + hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN); + + /* Stop the interrupts error handling */ + __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA)); + + hsai->State = HAL_SAI_STATE_READY; + } +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->TxCpltCallback(hsai); +#else + HAL_SAI_TxCpltCallback(hsai); +#endif +} + +/** + * @brief DMA SAI transmit process half complete callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma) +{ + SAI_HandleTypeDef *hsai = (SAI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->TxHalfCpltCallback(hsai); +#else + HAL_SAI_TxHalfCpltCallback(hsai); +#endif +} + +/** + * @brief DMA SAI receive process complete callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma) +{ + SAI_HandleTypeDef *hsai = (SAI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + if (hdma->Init.Mode != DMA_CIRCULAR) + { + /* Disable Rx DMA Request */ + hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN); + hsai->XferCount = 0; + + /* Stop the interrupts error handling */ + __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA)); + + hsai->State = HAL_SAI_STATE_READY; + } +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->RxCpltCallback(hsai); +#else + HAL_SAI_RxCpltCallback(hsai); +#endif +} + +/** + * @brief DMA SAI receive process half complete callback + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma) +{ + SAI_HandleTypeDef *hsai = (SAI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->RxHalfCpltCallback(hsai); +#else + HAL_SAI_RxHalfCpltCallback(hsai); +#endif +} + +/** + * @brief DMA SAI communication error callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SAI_DMAError(DMA_HandleTypeDef *hdma) +{ + SAI_HandleTypeDef *hsai = (SAI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* Ignore DMA FIFO error */ + if (HAL_DMA_GetError(hdma) != HAL_DMA_ERROR_FE) + { + /* Set SAI error code */ + hsai->ErrorCode |= HAL_SAI_ERROR_DMA; + + /* Disable the SAI DMA request */ + hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN; + + /* Disable SAI peripheral */ + /* No need to check return value because state will be updated and HAL_SAI_ErrorCallback will be called later */ + (void) SAI_Disable(hsai); + + /* Set the SAI state ready to be able to start again the process */ + hsai->State = HAL_SAI_STATE_READY; + + /* Initialize XferCount */ + hsai->XferCount = 0U; + + /* SAI error Callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif + } +} + +/** + * @brief DMA SAI Abort callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SAI_DMAAbort(DMA_HandleTypeDef *hdma) +{ + SAI_HandleTypeDef *hsai = (SAI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* Disable DMA request */ + hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN; + + /* Disable all interrupts and clear all flags */ + hsai->Instance->IMR = 0U; + hsai->Instance->CLRFR = 0xFFFFFFFFU; + + if (hsai->ErrorCode != HAL_SAI_ERROR_WCKCFG) + { + /* Disable SAI peripheral */ + /* No need to check return value because state will be updated and HAL_SAI_ErrorCallback will be called later */ + (void) SAI_Disable(hsai); + + /* Flush the fifo */ + SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH); + } + /* Set the SAI state to ready to be able to start again the process */ + hsai->State = HAL_SAI_STATE_READY; + + /* Initialize XferCount */ + hsai->XferCount = 0U; + + /* SAI error Callback */ +#if (USE_HAL_SAI_REGISTER_CALLBACKS == 1) + hsai->ErrorCallback(hsai); +#else + HAL_SAI_ErrorCallback(hsai); +#endif +} + +/** + * @} + */ + +#endif /* HAL_SAI_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + -- cgit v1.2.3