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Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c | 1946 |
1 files changed, 1946 insertions, 0 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c new file mode 100644 index 0000000000..1a6bec0451 --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c @@ -0,0 +1,1946 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_hal_i2s.c
+ * @author MCD Application Team
+ * @brief I2S HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Integrated Interchip Sound (I2S) peripheral:
+ * + Initialization and de-initialization functions
+ * + IO operation functions
+ * + Peripheral State and Errors functions
+ @verbatim
+ ===============================================================================
+ ##### How to use this driver #####
+ ===============================================================================
+ [..]
+ The I2S HAL driver can be used as follow:
+
+ (#) Declare a I2S_HandleTypeDef handle structure.
+ (#) Initialize the I2S low level resources by implement the HAL_I2S_MspInit() API:
+ (##) Enable the SPIx interface clock.
+ (##) I2S pins configuration:
+ (+++) Enable the clock for the I2S GPIOs.
+ (+++) Configure these I2S pins as alternate function pull-up.
+ (##) NVIC configuration if you need to use interrupt process (HAL_I2S_Transmit_IT()
+ and HAL_I2S_Receive_IT() APIs).
+ (+++) Configure the I2Sx interrupt priority.
+ (+++) Enable the NVIC I2S IRQ handle.
+ (##) DMA Configuration if you need to use DMA process (HAL_I2S_Transmit_DMA()
+ and HAL_I2S_Receive_DMA() APIs:
+ (+++) Declare a DMA handle structure for the Tx/Rx Stream/Channel.
+ (+++) Enable the DMAx interface clock.
+ (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
+ (+++) Configure the DMA Tx/Rx Stream/Channel.
+ (+++) Associate the initialized DMA handle to the I2S DMA Tx/Rx handle.
+ (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the
+ DMA Tx/Rx Stream/Channel.
+
+ (#) Program the Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity
+ using HAL_I2S_Init() function.
+
+ -@- The specific I2S interrupts (Transmission complete interrupt,
+ RXNE interrupt and Error Interrupts) will be managed using the macros
+ __HAL_I2S_ENABLE_IT() and __HAL_I2S_DISABLE_IT() inside the transmit and receive process.
+
+ (+@) External clock source is configured after setting correctly
+ the define constant EXTERNAL_CLOCK_VALUE in the stm32h7xx_hal_conf.h file.
+
+ (#) Three mode of operations are available within this driver :
+
+ *** Polling mode IO operation ***
+ =================================
+ [..]
+ (+) Send an amount of data in blocking mode using HAL_I2S_Transmit()
+ (+) Receive an amount of data in blocking mode using HAL_I2S_Receive()
+
+ *** Interrupt mode IO operation ***
+ ===================================
+ [..]
+ (+) Send an amount of data in non blocking mode using HAL_I2S_Transmit_IT()
+ (+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback
+ (+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_I2S_TxCpltCallback
+ (+) Receive an amount of data in non blocking mode using HAL_I2S_Receive_IT()
+ (+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback
+ (+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_I2S_RxCpltCallback
+ (+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
+ add his own code by customization of function pointer HAL_I2S_ErrorCallback
+
+ *** DMA mode IO operation ***
+ ==============================
+ [..]
+ (+) Send an amount of data in non blocking mode (DMA) using HAL_I2S_Transmit_DMA()
+ (+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback
+ (+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_I2S_TxCpltCallback
+ (+) Receive an amount of data in non blocking mode (DMA) using HAL_I2S_Receive_DMA()
+ (+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback
+ (+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_I2S_RxCpltCallback
+ (+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
+ add his own code by customization of function pointer HAL_I2S_ErrorCallback
+ (+) Pause the DMA Transfer using HAL_I2S_DMAPause()
+ (+) Resume the DMA Transfer using HAL_I2S_DMAResume()
+ (+) Stop the DMA Transfer using HAL_I2S_DMAStop()
+
+ *** I2S HAL driver macros list ***
+ ===================================
+ [..]
+ Below the list of most used macros in I2S HAL driver.
+
+ (+) __HAL_I2S_ENABLE: Enable the specified SPI peripheral (in I2S mode)
+ (+) __HAL_I2S_DISABLE: Disable the specified SPI peripheral (in I2S mode)
+ (+) __HAL_I2S_ENABLE_IT : Enable the specified I2S interrupts
+ (+) __HAL_I2S_DISABLE_IT : Disable the specified I2S interrupts
+ (+) __HAL_I2S_GET_FLAG: Check whether the specified I2S flag is set or not
+
+ [..]
+ (@) You can refer to the I2S HAL driver header file for more useful macros
+
+ *** I2S HAL driver macros list ***
+ ===================================
+ [..]
+ Callback registration:
+
+ (#) The compilation flag USE_HAL_I2S_REGISTER_CALLBACKS when set to 1UL
+ allows the user to configure dynamically the driver callbacks.
+ Use Functions HAL_I2S_RegisterCallback() to register an interrupt callback.
+
+ Function HAL_I2S_RegisterCallback() allows to register following callbacks:
+ (+) TxCpltCallback : I2S Tx Completed callback
+ (+) RxCpltCallback : I2S Rx Completed callback
+ (+) TxHalfCpltCallback : I2S Tx Half Completed callback
+ (+) RxHalfCpltCallback : I2S Rx Half Completed callback
+ (+) ErrorCallback : I2S Error callback
+ (+) MspInitCallback : I2S Msp Init callback
+ (+) MspDeInitCallback : I2S Msp DeInit callback
+ This function takes as parameters the HAL peripheral handle, the Callback ID
+ and a pointer to the user callback function.
+
+
+ (#) Use function HAL_I2S_UnRegisterCallback to reset a callback to the default
+ weak function.
+ HAL_I2S_UnRegisterCallback takes as parameters the HAL peripheral handle,
+ and the Callback ID.
+ This function allows to reset following callbacks:
+ (+) TxCpltCallback : I2S Tx Completed callback
+ (+) RxCpltCallback : I2S Rx Completed callback
+ (+) TxHalfCpltCallback : I2S Tx Half Completed callback
+ (+) RxHalfCpltCallback : I2S Rx Half Completed callback
+ (+) ErrorCallback : I2S Error callback
+ (+) MspInitCallback : I2S Msp Init callback
+ (+) MspDeInitCallback : I2S Msp DeInit callback
+
+ By default, after the HAL_I2S_Init() and when the state is HAL_I2S_STATE_RESET
+ all callbacks are set to the corresponding weak functions:
+ examples HAL_I2S_MasterTxCpltCallback(), HAL_I2S_MasterRxCpltCallback().
+ Exception done for MspInit and MspDeInit functions that are
+ reset to the legacy weak functions in the HAL_I2S_Init()/ HAL_I2S_DeInit() only when
+ these callbacks are null (not registered beforehand).
+ If MspInit or MspDeInit are not null, the HAL_I2S_Init()/ HAL_I2S_DeInit()
+ keep and use the user MspInit/MspDeInit callbacks (registered beforehand) whatever the state.
+
+ Callbacks can be registered/unregistered in HAL_I2S_STATE_READY state only.
+ Exception done MspInit/MspDeInit functions that can be registered/unregistered
+ in HAL_I2S_STATE_READY or HAL_I2S_STATE_RESET state,
+ thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit.
+ Then, the user first registers the MspInit/MspDeInit user callbacks
+ using HAL_I2S_RegisterCallback() before calling HAL_I2S_DeInit()
+ or HAL_I2S_Init() function.
+
+ When The compilation define USE_HAL_I2S_REGISTER_CALLBACKS is set to 0 or
+ not defined, the callback registering feature is not available
+ and weak (surcharged) callbacks are used.
+
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_hal.h"
+
+#ifdef HAL_I2S_MODULE_ENABLED
+
+/** @addtogroup STM32H7xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup I2S I2S
+ * @brief I2S HAL module driver
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+#define I2S_TIMEOUT 0xFFFFUL
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @defgroup I2S_Private_Functions I2S Private Functions
+ * @{
+ */
+static void I2S_DMATxCplt(DMA_HandleTypeDef *hdma);
+static void I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
+static void I2S_DMARxCplt(DMA_HandleTypeDef *hdma);
+static void I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
+static void I2S_DMAError(DMA_HandleTypeDef *hdma);
+static void I2S_Transmit_16Bit_IT(I2S_HandleTypeDef *hi2s);
+static void I2S_Transmit_32Bit_IT(I2S_HandleTypeDef *hi2s);
+static void I2S_Receive_16Bit_IT(I2S_HandleTypeDef *hi2s);
+static void I2S_Receive_32Bit_IT(I2S_HandleTypeDef *hi2s);
+static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, FlagStatus State,
+ uint32_t Timeout);
+/**
+ * @}
+ */
+
+/* Exported functions ---------------------------------------------------------*/
+
+/** @defgroup I2S_Exported_Functions I2S Exported Functions
+ * @{
+ */
+
+/** @defgroup I2S_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 I2Sx peripheral in simplex mode:
+
+ (+) User must Implement HAL_I2S_MspInit() function in which he configures
+ all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
+
+ (+) Call the function HAL_I2S_Init() to configure the selected device with
+ the selected configuration:
+ (++) Mode
+ (++) Standard
+ (++) Data Format
+ (++) MCLK Output
+ (++) Audio frequency
+ (++) Polarity
+
+ (+) Call the function HAL_I2S_DeInit() to restore the default configuration
+ of the selected I2Sx peripheral.
+ @endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the I2S according to the specified parameters
+ * in the I2S_InitTypeDef and create the associated handle.
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_Init(I2S_HandleTypeDef *hi2s)
+{
+ uint32_t i2sdiv;
+ uint32_t i2sodd;
+ uint32_t packetlength;
+ uint32_t tmp;
+ uint32_t i2sclk;
+ uint32_t ispcm;
+
+ /* Check the I2S handle allocation */
+ if (hi2s == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the I2S parameters */
+ assert_param(IS_I2S_ALL_INSTANCE(hi2s->Instance));
+ assert_param(IS_I2S_MODE(hi2s->Init.Mode));
+ assert_param(IS_I2S_STANDARD(hi2s->Init.Standard));
+ assert_param(IS_I2S_DATA_FORMAT(hi2s->Init.DataFormat));
+ assert_param(IS_I2S_MCLK_OUTPUT(hi2s->Init.MCLKOutput));
+ assert_param(IS_I2S_AUDIO_FREQ(hi2s->Init.AudioFreq));
+ assert_param(IS_I2S_CPOL(hi2s->Init.CPOL));
+ assert_param(IS_I2S_FIRST_BIT(hi2s->Init.FirstBit));
+ assert_param(IS_I2S_WS_INVERSION(hi2s->Init.WSInversion));
+ assert_param(IS_I2S_DATA_24BIT_ALIGNMENT(hi2s->Init.Data24BitAlignment));
+ assert_param(IS_I2S_MASTER_KEEP_IO_STATE(hi2s->Init.MasterKeepIOState));
+
+ if (hi2s->State == HAL_I2S_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ hi2s->Lock = HAL_UNLOCKED;
+
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ /* Init the I2S Callback settings */
+ hi2s->TxCpltCallback = HAL_I2S_TxCpltCallback; /* Legacy weak TxCpltCallback */
+ hi2s->RxCpltCallback = HAL_I2S_RxCpltCallback; /* Legacy weak RxCpltCallback */
+ hi2s->TxHalfCpltCallback = HAL_I2S_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */
+ hi2s->RxHalfCpltCallback = HAL_I2S_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */
+ hi2s->ErrorCallback = HAL_I2S_ErrorCallback; /* Legacy weak ErrorCallback */
+
+ if (hi2s->MspInitCallback == NULL)
+ {
+ hi2s->MspInitCallback = HAL_I2S_MspInit; /* Legacy weak MspInit */
+ }
+
+ /* Init the low level hardware : GPIO, CLOCK, NVIC... */
+ hi2s->MspInitCallback(hi2s);
+#else
+ /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
+ HAL_I2S_MspInit(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+ }
+
+ hi2s->State = HAL_I2S_STATE_BUSY;
+
+ /* Disable the selected I2S peripheral */
+ if ((hi2s->Instance->CR1 & SPI_CR1_SPE) == SPI_CR1_SPE)
+ {
+ /* Disable I2S peripheral */
+ __HAL_I2S_DISABLE(hi2s);
+ }
+
+ /* Clear I2S configuration register */
+ CLEAR_REG(hi2s->Instance->I2SCFGR);
+
+ if (IS_I2S_MASTER(hi2s->Init.Mode))
+ {
+ /*------------------------- I2SDIV and ODD Calculation ---------------------*/
+ /* If the requested audio frequency is not the default, compute the prescaler */
+ if (hi2s->Init.AudioFreq != I2S_AUDIOFREQ_DEFAULT)
+ {
+ /* Check the frame length (For the Prescaler computing) ********************/
+ if (hi2s->Init.DataFormat != I2S_DATAFORMAT_16B)
+ {
+ /* Channel length is 32 bits */
+ packetlength = 2UL;
+ }
+ else
+ {
+ /* Channel length is 16 bits */
+ packetlength = 1UL;
+ }
+
+ /* Check if PCM standard is used */
+ if ((hi2s->Init.Standard == I2S_STANDARD_PCM_SHORT) ||
+ (hi2s->Init.Standard == I2S_STANDARD_PCM_LONG))
+ {
+ ispcm = 1UL;
+ }
+ else
+ {
+ ispcm = 0UL;
+ }
+
+ /* Get the source clock value: based on System Clock value */
+#if defined (SPI_SPI6I2S_SUPPORT)
+ if (hi2s->Instance == SPI6)
+ {
+ /* SPI6 source clock */
+ i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI6);
+ }
+ else
+ {
+ /* SPI1,SPI2 and SPI3 share the same source clock */
+ i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI123);
+ }
+#else
+ /* SPI1,SPI2 and SPI3 share the same source clock */
+ i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI123);
+#endif
+
+ /* Compute the Real divider depending on the MCLK output state, with a floating point */
+ if (hi2s->Init.MCLKOutput == I2S_MCLKOUTPUT_ENABLE)
+ {
+ /* MCLK output is enabled */
+ tmp = (uint32_t)((((i2sclk / (256UL >> ispcm)) * 10UL) / hi2s->Init.AudioFreq) + 5UL);
+ }
+ else
+ {
+ /* MCLK output is disabled */
+ tmp = (uint32_t)((((i2sclk / ((32UL >> ispcm) * packetlength)) * 10UL) / hi2s->Init.AudioFreq) + 5UL);
+ }
+
+ /* Remove the flatting point */
+ tmp = tmp / 10UL;
+
+ /* Check the parity of the divider */
+ i2sodd = (uint32_t)(tmp & (uint32_t)1UL);
+
+ /* Compute the i2sdiv prescaler */
+ i2sdiv = (uint32_t)((tmp - i2sodd) / 2UL);
+ }
+ else
+ {
+ /* Set the default values */
+ i2sdiv = 2UL;
+ i2sodd = 0UL;
+ }
+
+ /* Test if the obtain values are forbidden or out of range */
+ if (((i2sodd == 1UL) && (i2sdiv == 1UL)) || (i2sdiv > 0xFFUL))
+ {
+ /* Set the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_PRESCALER);
+ return HAL_ERROR;
+ }
+
+ /* Force i2smod to 1 just to be sure that (2xi2sdiv + i2sodd) is always higher than 0 */
+ if (i2sdiv == 0UL)
+ {
+ i2sodd = 1UL;
+ }
+
+ MODIFY_REG(hi2s->Instance->I2SCFGR, (SPI_I2SCFGR_I2SDIV | SPI_I2SCFGR_ODD),
+ ((i2sdiv << SPI_I2SCFGR_I2SDIV_Pos) | (i2sodd << SPI_I2SCFGR_ODD_Pos)));
+ }
+
+ /*-------------------------- I2Sx I2SCFGR Configuration --------------------*/
+ /* Configure I2SMOD, I2SCFG, I2SSTD, PCMSYNC, DATLEN ,CHLEN ,CKPOL, WSINV, DATAFMT, I2SDIV, ODD and MCKOE bits bits */
+ /* And configure the I2S with the I2S_InitStruct values */
+ MODIFY_REG(hi2s->Instance->I2SCFGR, (SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SCFG | \
+ SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC | \
+ SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN | \
+ SPI_I2SCFGR_CKPOL | SPI_I2SCFGR_WSINV | \
+ SPI_I2SCFGR_DATFMT | SPI_I2SCFGR_MCKOE),
+ (SPI_I2SCFGR_I2SMOD | hi2s->Init.Mode | \
+ hi2s->Init.Standard | hi2s->Init.DataFormat | \
+ hi2s->Init.CPOL | hi2s->Init.WSInversion | \
+ hi2s->Init.Data24BitAlignment | hi2s->Init.MCLKOutput));
+ /*Clear status register*/
+ WRITE_REG(hi2s->Instance->IFCR, 0x0FF8);
+
+ /*---------------------------- I2Sx CFG2 Configuration ----------------------*/
+
+ /* Unlock the AF configuration to configure CFG2 register*/
+ CLEAR_BIT(hi2s->Instance->CR1, SPI_CR1_IOLOCK);
+
+ MODIFY_REG(hi2s->Instance->CFG2, SPI_CFG2_LSBFRST, hi2s->Init.FirstBit);
+
+ /* Insure that AFCNTR is managed only by Master */
+ if (IS_I2S_MASTER(hi2s->Init.Mode))
+ {
+ /* Alternate function GPIOs control */
+ MODIFY_REG(hi2s->Instance->CFG2, SPI_CFG2_AFCNTR, (hi2s->Init.MasterKeepIOState));
+ }
+
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief DeInitializes the I2S peripheral
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_DeInit(I2S_HandleTypeDef *hi2s)
+{
+ /* Check the I2S handle allocation */
+ if (hi2s == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_I2S_ALL_INSTANCE(hi2s->Instance));
+
+ hi2s->State = HAL_I2S_STATE_BUSY;
+
+ /* Disable the I2S Peripheral Clock */
+ __HAL_I2S_DISABLE(hi2s);
+
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ if (hi2s->MspDeInitCallback == NULL)
+ {
+ hi2s->MspDeInitCallback = HAL_I2S_MspDeInit; /* Legacy weak MspDeInit */
+ }
+
+ /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
+ hi2s->MspDeInitCallback(hi2s);
+#else
+ /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
+ HAL_I2S_MspDeInit(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+ hi2s->State = HAL_I2S_STATE_RESET;
+
+ /* Release Lock */
+ __HAL_UNLOCK(hi2s);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief I2S MSP Init
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+__weak void HAL_I2S_MspInit(I2S_HandleTypeDef *hi2s)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hi2s);
+
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_I2S_MspInit could be implemented in the user file
+ */
+}
+
+/**
+ * @brief I2S MSP DeInit
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+__weak void HAL_I2S_MspDeInit(I2S_HandleTypeDef *hi2s)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hi2s);
+
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_I2S_MspDeInit could be implemented in the user file
+ */
+}
+
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+/**
+ * @brief Register a User I2S Callback
+ * To be used instead of the weak predefined callback
+ * @param hi2s Pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for the specified I2S.
+ * @param CallbackID ID of the callback to be registered
+ * @param pCallback pointer to the Callback function
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_RegisterCallback(I2S_HandleTypeDef *hi2s, HAL_I2S_CallbackIDTypeDef CallbackID, pI2S_CallbackTypeDef pCallback)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ if (pCallback == NULL)
+ {
+ /* Update the error code */
+ hi2s->ErrorCode |= HAL_I2S_ERROR_INVALID_CALLBACK;
+
+ return HAL_ERROR;
+ }
+ /* Process locked */
+ __HAL_LOCK(hi2s);
+
+ if (HAL_I2S_STATE_READY == hi2s->State)
+ {
+ switch (CallbackID)
+ {
+ case HAL_I2S_TX_COMPLETE_CB_ID :
+ hi2s->TxCpltCallback = pCallback;
+ break;
+
+ case HAL_I2S_RX_COMPLETE_CB_ID :
+ hi2s->RxCpltCallback = pCallback;
+ break;
+
+ case HAL_I2S_TX_HALF_COMPLETE_CB_ID :
+ hi2s->TxHalfCpltCallback = pCallback;
+ break;
+
+ case HAL_I2S_RX_HALF_COMPLETE_CB_ID :
+ hi2s->RxHalfCpltCallback = pCallback;
+ break;
+
+ case HAL_I2S_ERROR_CB_ID :
+ hi2s->ErrorCallback = pCallback;
+ break;
+
+ case HAL_I2S_MSPINIT_CB_ID :
+ hi2s->MspInitCallback = pCallback;
+ break;
+
+ case HAL_I2S_MSPDEINIT_CB_ID :
+ hi2s->MspDeInitCallback = pCallback;
+ break;
+
+ default :
+ /* Update the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
+
+ /* Return error status */
+ status = HAL_ERROR;
+ break;
+ }
+ }
+ else if (HAL_I2S_STATE_RESET == hi2s->State)
+ {
+ switch (CallbackID)
+ {
+ case HAL_I2S_MSPINIT_CB_ID :
+ hi2s->MspInitCallback = pCallback;
+ break;
+
+ case HAL_I2S_MSPDEINIT_CB_ID :
+ hi2s->MspDeInitCallback = pCallback;
+ break;
+
+ default :
+ /* Update the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
+
+ /* Return error status */
+ status = HAL_ERROR;
+ break;
+ }
+ }
+ else
+ {
+ /* Update the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
+
+ /* Return error status */
+ status = HAL_ERROR;
+ }
+
+ /* Release Lock */
+ __HAL_UNLOCK(hi2s);
+ return status;
+}
+
+/**
+ * @brief Unregister an I2S Callback
+ * I2S callback is redirected to the weak predefined callback
+ * @param hi2s Pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for the specified I2S.
+ * @param CallbackID ID of the callback to be unregistered
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_UnRegisterCallback(I2S_HandleTypeDef *hi2s, HAL_I2S_CallbackIDTypeDef CallbackID)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ /* Process locked */
+ __HAL_LOCK(hi2s);
+
+ if (HAL_I2S_STATE_READY == hi2s->State)
+ {
+ switch (CallbackID)
+ {
+ case HAL_I2S_TX_COMPLETE_CB_ID :
+ hi2s->TxCpltCallback = HAL_I2S_TxCpltCallback; /* Legacy weak TxCpltCallback */
+ break;
+
+ case HAL_I2S_RX_COMPLETE_CB_ID :
+ hi2s->RxCpltCallback = HAL_I2S_RxCpltCallback; /* Legacy weak RxCpltCallback */
+ break;
+
+ case HAL_I2S_TX_HALF_COMPLETE_CB_ID :
+ hi2s->TxHalfCpltCallback = HAL_I2S_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */
+ break;
+
+ case HAL_I2S_RX_HALF_COMPLETE_CB_ID :
+ hi2s->RxHalfCpltCallback = HAL_I2S_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */
+ break;
+
+ case HAL_I2S_ERROR_CB_ID :
+ hi2s->ErrorCallback = HAL_I2S_ErrorCallback; /* Legacy weak ErrorCallback */
+ break;
+
+ case HAL_I2S_MSPINIT_CB_ID :
+ hi2s->MspInitCallback = HAL_I2S_MspInit; /* Legacy weak MspInit */
+ break;
+
+ case HAL_I2S_MSPDEINIT_CB_ID :
+ hi2s->MspDeInitCallback = HAL_I2S_MspDeInit; /* Legacy weak MspDeInit */
+ break;
+
+ default :
+ /* Update the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
+
+ /* Return error status */
+ status = HAL_ERROR;
+ break;
+ }
+ }
+ else if (HAL_I2S_STATE_RESET == hi2s->State)
+ {
+ switch (CallbackID)
+ {
+ case HAL_I2S_MSPINIT_CB_ID :
+ hi2s->MspInitCallback = HAL_I2S_MspInit; /* Legacy weak MspInit */
+ break;
+
+ case HAL_I2S_MSPDEINIT_CB_ID :
+ hi2s->MspDeInitCallback = HAL_I2S_MspDeInit; /* Legacy weak MspDeInit */
+ break;
+
+ default :
+ /* Update the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
+
+ /* Return error status */
+ status = HAL_ERROR;
+ break;
+ }
+ }
+ else
+ {
+ /* Update the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
+
+ /* Return error status */
+ status = HAL_ERROR;
+ }
+
+ /* Release Lock */
+ __HAL_UNLOCK(hi2s);
+ return status;
+}
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+/**
+ * @}
+ */
+
+/** @defgroup I2S_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 I2S 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 I2S IRQ when using Interrupt mode or the DMA IRQ when
+ using DMA mode.
+
+ (#) Blocking mode functions are :
+ (++) HAL_I2S_Transmit()
+ (++) HAL_I2S_Receive()
+
+ (#) No-Blocking mode functions with Interrupt are :
+ (++) HAL_I2S_Transmit_IT()
+ (++) HAL_I2S_Receive_IT()
+
+ (#) No-Blocking mode functions with DMA are :
+ (++) HAL_I2S_Transmit_DMA()
+ (++) HAL_I2S_Receive_DMA()
+
+ (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
+ (++) HAL_I2S_TxCpltCallback()
+ (++) HAL_I2S_RxCpltCallback()
+ (++) HAL_I2S_ErrorCallback()
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Transmit an amount of data in blocking mode
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @param pData a 16-bit pointer to data buffer.
+ * @param Size number of data sample to be sent:
+ * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
+ * configuration phase, the Size parameter means the number of 16-bit data length
+ * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
+ * the Size parameter means the number of 16-bit data length.
+ * @param Timeout Timeout duration
+ * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
+ * between Master and Slave(example: audio streaming).
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_Transmit(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout)
+{
+#if defined (__GNUC__)
+ __IO uint16_t *ptxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->TXDR));
+#endif /* __GNUC__ */
+
+ if ((pData == NULL) || (Size == 0UL))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hi2s);
+
+ if (hi2s->State != HAL_I2S_STATE_READY)
+ {
+ __HAL_UNLOCK(hi2s);
+ return HAL_BUSY;
+ }
+
+ /* Set state and reset error code */
+ hi2s->State = HAL_I2S_STATE_BUSY_TX;
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+ hi2s->pTxBuffPtr = pData;
+ hi2s->TxXferSize = Size;
+ hi2s->TxXferCount = Size;
+
+ /* Initialize fields not used in handle to zero */
+ hi2s->pRxBuffPtr = NULL;
+ hi2s->RxXferSize = (uint16_t) 0UL;
+ hi2s->RxXferCount = (uint16_t) 0UL;
+
+ /* Check if the I2S is already enabled */
+ if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
+ {
+ /* Enable I2S peripheral */
+ __HAL_I2S_ENABLE(hi2s);
+ }
+
+ /* Start the transfer */
+ SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
+
+
+ /* Wait until TXP flag is set */
+ if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXP, SET, Timeout) != HAL_OK)
+ {
+ /* Set the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT);
+ hi2s->State = HAL_I2S_STATE_READY;
+ __HAL_UNLOCK(hi2s);
+ return HAL_ERROR;
+ }
+
+ while (hi2s->TxXferCount > 0UL)
+ {
+ if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B))
+ {
+ /* Transmit data in 32 Bit mode */
+ hi2s->Instance->TXDR = *((uint32_t *)hi2s->pTxBuffPtr);
+ hi2s->pTxBuffPtr += 2;
+ hi2s->TxXferCount--;
+ }
+ else
+ {
+ /* Transmit data in 16 Bit mode */
+#if defined (__GNUC__)
+ *ptxdr_16bits = *((uint16_t *)hi2s->pTxBuffPtr);
+#else
+ *((__IO uint16_t *)&hi2s->Instance->TXDR) = *((uint16_t *)hi2s->pTxBuffPtr);
+#endif /* __GNUC__ */
+
+ hi2s->pTxBuffPtr++;
+ hi2s->TxXferCount--;
+ }
+
+ /* Wait until TXP flag is set */
+ if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXP, SET, Timeout) != HAL_OK)
+ {
+ /* Set the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT);
+ hi2s->State = HAL_I2S_STATE_READY;
+ __HAL_UNLOCK(hi2s);
+ return HAL_ERROR;
+ }
+
+ /* Check if an underrun occurs */
+ if (__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_UDR) == SET)
+ {
+ /* Clear underrun flag */
+ __HAL_I2S_CLEAR_UDRFLAG(hi2s);
+
+ /* Set the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR);
+ }
+ }
+
+ hi2s->State = HAL_I2S_STATE_READY;
+ __HAL_UNLOCK(hi2s);
+ return HAL_OK;
+}
+
+/**
+ * @brief Receive an amount of data in blocking mode
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @param pData a 16-bit pointer to data buffer.
+ * @param Size number of data sample to be sent:
+ * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
+ * configuration phase, the Size parameter means the number of 16-bit data length
+ * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
+ * the Size parameter means the number of 16-bit data length.
+ * @param Timeout Timeout duration
+ * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
+ * between Master and Slave(example: audio streaming).
+ * @note In I2S Master Receiver mode, just after enabling the peripheral the clock will be generate
+ * in continuous way and as the I2S is not disabled at the end of the I2S transaction.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_Receive(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout)
+{
+#if defined (__GNUC__)
+ __IO uint16_t *prxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->RXDR));
+#endif /* __GNUC__ */
+
+ if ((pData == NULL) || (Size == 0UL))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hi2s);
+
+ if (hi2s->State != HAL_I2S_STATE_READY)
+ {
+ __HAL_UNLOCK(hi2s);
+ return HAL_BUSY;
+ }
+
+ /* Set state and reset error code */
+ hi2s->State = HAL_I2S_STATE_BUSY_RX;
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+ hi2s->pRxBuffPtr = pData;
+ hi2s->RxXferSize = Size;
+ hi2s->RxXferCount = Size;
+
+ /* Initialize fields not used in handle to zero */
+ hi2s->pTxBuffPtr = NULL;
+ hi2s->TxXferSize = (uint16_t) 0UL;
+ hi2s->TxXferCount = (uint16_t) 0UL;
+
+ /* Check if the I2S is already enabled */
+ if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
+ {
+ /* Enable I2S peripheral */
+ __HAL_I2S_ENABLE(hi2s);
+ }
+
+ /* Start the transfer */
+ SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
+
+ /* Receive data */
+ while (hi2s->RxXferCount > 0UL)
+ {
+ /* Wait until RXNE flag is set */
+ if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_RXP, SET, Timeout) != HAL_OK)
+ {
+ /* Set the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT);
+ hi2s->State = HAL_I2S_STATE_READY;
+ __HAL_UNLOCK(hi2s);
+ return HAL_ERROR;
+ }
+
+ if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B))
+ {
+ /* Receive data in 32 Bit mode */
+ *((uint32_t *)hi2s->pRxBuffPtr) = hi2s->Instance->RXDR;
+ hi2s->pRxBuffPtr += 2;
+ hi2s->RxXferCount--;
+ }
+ else
+ {
+ /* Receive data in 16 Bit mode */
+#if defined (__GNUC__)
+ *((uint16_t *)hi2s->pRxBuffPtr) = *prxdr_16bits;
+#else
+ *((uint16_t *)hi2s->pRxBuffPtr) = *((__IO uint16_t *)&hi2s->Instance->RXDR);
+#endif /* __GNUC__ */
+ hi2s->pRxBuffPtr++;
+ hi2s->RxXferCount--;
+ }
+
+ /* Check if an overrun occurs */
+ if (__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_OVR) == SET)
+ {
+ /* Clear overrun flag */
+ __HAL_I2S_CLEAR_OVRFLAG(hi2s);
+
+ /* Set the error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR);
+ }
+ }
+
+ hi2s->State = HAL_I2S_STATE_READY;
+ __HAL_UNLOCK(hi2s);
+ return HAL_OK;
+}
+
+/**
+ * @brief Transmit an amount of data in non-blocking mode with Interrupt
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @param pData a 16-bit pointer to data buffer.
+ * @param Size number of data sample to be sent:
+ * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
+ * configuration phase, the Size parameter means the number of 16-bit data length
+ * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
+ * the Size parameter means the number of 16-bit data length.
+ * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
+ * between Master and Slave(example: audio streaming).
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_Transmit_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
+{
+ if ((pData == NULL) || (Size == 0UL))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hi2s);
+
+ if (hi2s->State != HAL_I2S_STATE_READY)
+ {
+ __HAL_UNLOCK(hi2s);
+ return HAL_BUSY;
+ }
+
+ /* Set state and reset error code */
+ hi2s->State = HAL_I2S_STATE_BUSY_TX;
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+ hi2s->pTxBuffPtr = (uint16_t *)pData;
+ hi2s->TxXferSize = Size;
+ hi2s->TxXferCount = Size;
+
+ /* Initialize fields not used in handle to zero */
+ hi2s->pRxBuffPtr = NULL;
+ hi2s->RxXferSize = (uint16_t) 0UL;
+ hi2s->RxXferCount = (uint16_t) 0UL;
+
+ /* Set the function for IT treatment */
+ if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B))
+ {
+ hi2s->TxISR = I2S_Transmit_32Bit_IT;
+ }
+ else
+ {
+ hi2s->TxISR = I2S_Transmit_16Bit_IT;
+ }
+
+ /* Check if the I2S is already enabled */
+ if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
+ {
+ /* Enable I2S peripheral */
+ __HAL_I2S_ENABLE(hi2s);
+ }
+
+ /* Enable TXP and UDR interrupt */
+ __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_UDR));
+
+ /* Enable TIFRE interrupt if the mode is Slave */
+ if (hi2s->Init.Mode == I2S_MODE_SLAVE_TX)
+ {
+ __HAL_I2S_ENABLE_IT(hi2s, I2S_IT_FRE);
+ }
+
+ /* Start the transfer */
+ SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
+
+ __HAL_UNLOCK(hi2s);
+ return HAL_OK;
+}
+
+/**
+ * @brief Receive an amount of data in non-blocking mode with Interrupt
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @param pData a 16-bit pointer to the Receive data buffer.
+ * @param Size number of data sample to be sent:
+ * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
+ * configuration phase, the Size parameter means the number of 16-bit data length
+ * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
+ * the Size parameter means the number of 16-bit data length.
+ * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
+ * between Master and Slave(example: audio streaming).
+ * @note It is recommended to use DMA for the I2S receiver to avoid de-synchronization
+ * between Master and Slave otherwise the I2S interrupt should be optimized.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_Receive_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
+{
+ if ((pData == NULL) || (Size == 0UL))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hi2s);
+
+ if (hi2s->State != HAL_I2S_STATE_READY)
+ {
+ __HAL_UNLOCK(hi2s);
+ return HAL_BUSY;
+ }
+
+ /* Set state and reset error code */
+ hi2s->State = HAL_I2S_STATE_BUSY_RX;
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+ hi2s->pRxBuffPtr = pData;
+ hi2s->RxXferSize = Size;
+ hi2s->RxXferCount = Size;
+
+ /* Initialize fields not used in handle to zero */
+ hi2s->pTxBuffPtr = NULL;
+ hi2s->TxXferSize = (uint16_t) 0UL;
+ hi2s->TxXferCount = (uint16_t) 0UL;
+
+ /* Set the function for IT treatment */
+ if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B))
+ {
+ hi2s->RxISR = I2S_Receive_32Bit_IT;
+ }
+ else
+ {
+ hi2s->RxISR = I2S_Receive_16Bit_IT;
+ }
+
+ /* Check if the I2S is already enabled */
+ if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
+ {
+ /* Enable I2S peripheral */
+ __HAL_I2S_ENABLE(hi2s);
+ }
+ /* Enable RXNE and ERR interrupt */
+ __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_OVR));
+
+ /* Enable TIFRE interrupt if the mode is Slave */
+ if (hi2s->Init.Mode == I2S_MODE_SLAVE_RX)
+ {
+ __HAL_I2S_ENABLE_IT(hi2s, I2S_IT_FRE);
+ }
+
+ /* Start the transfer */
+ SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
+
+ __HAL_UNLOCK(hi2s);
+ return HAL_OK;
+}
+
+/**
+ * @brief Transmit an amount of data in non-blocking mode with DMA
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @param pData a 16-bit pointer to the Transmit data buffer.
+ * @param Size number of data sample to be sent:
+ * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
+ * configuration phase, the Size parameter means the number of 16-bit data length
+ * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
+ * the Size parameter means the number of 16-bit data length.
+ * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
+ * between Master and Slave(example: audio streaming).
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_Transmit_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
+{
+ if ((pData == NULL) || (Size == 0UL))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hi2s);
+
+ if (hi2s->State != HAL_I2S_STATE_READY)
+ {
+ __HAL_UNLOCK(hi2s);
+ return HAL_BUSY;
+ }
+
+ /* Set state and reset error code */
+ hi2s->State = HAL_I2S_STATE_BUSY_TX;
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+ hi2s->pTxBuffPtr = pData;
+ hi2s->TxXferSize = Size;
+ hi2s->TxXferCount = Size;
+
+ /* Init field not used in handle to zero */
+ hi2s->pRxBuffPtr = NULL;
+ hi2s->RxXferSize = (uint16_t)0UL;
+ hi2s->RxXferCount = (uint16_t)0UL;
+
+ /* Set the I2S Tx DMA Half transfer complete callback */
+ hi2s->hdmatx->XferHalfCpltCallback = I2S_DMATxHalfCplt;
+
+ /* Set the I2S Tx DMA transfer complete callback */
+ hi2s->hdmatx->XferCpltCallback = I2S_DMATxCplt;
+
+ /* Set the DMA error callback */
+ hi2s->hdmatx->XferErrorCallback = I2S_DMAError;
+
+ /* Enable the Tx DMA Stream/Channel */
+ if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmatx, (uint32_t)hi2s->pTxBuffPtr, (uint32_t)&hi2s->Instance->TXDR, hi2s->TxXferSize))
+ {
+ /* Update SPI error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ __HAL_UNLOCK(hi2s);
+ return HAL_ERROR;
+ }
+
+ /* Check if the I2S Tx request is already enabled */
+ if (HAL_IS_BIT_CLR(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN))
+ {
+ /* Enable Tx DMA Request */
+ SET_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN);
+ }
+
+ /* Check if the I2S is already enabled */
+ if (HAL_IS_BIT_CLR(hi2s->Instance->CR1, SPI_CR1_SPE))
+ {
+ /* Enable I2S peripheral */
+ __HAL_I2S_ENABLE(hi2s);
+ }
+
+ /* Start the transfer */
+ SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
+
+ __HAL_UNLOCK(hi2s);
+ return HAL_OK;
+}
+
+/**
+ * @brief Receive an amount of data in non-blocking mode with DMA
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @param pData a 16-bit pointer to the Receive data buffer.
+ * @param Size number of data sample to be sent:
+ * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
+ * configuration phase, the Size parameter means the number of 16-bit data length
+ * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
+ * the Size parameter means the number of 16-bit data length.
+ * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
+ * between Master and Slave(example: audio streaming).
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_Receive_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
+{
+ if ((pData == NULL) || (Size == 0UL))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hi2s);
+
+ if (hi2s->State != HAL_I2S_STATE_READY)
+ {
+ __HAL_UNLOCK(hi2s);
+ return HAL_BUSY;
+ }
+
+ /* Set state and reset error code */
+ hi2s->State = HAL_I2S_STATE_BUSY_RX;
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+ hi2s->pRxBuffPtr = pData;
+ hi2s->RxXferSize = Size;
+ hi2s->RxXferCount = Size;
+
+ /* Init field not used in handle to zero */
+ hi2s->pTxBuffPtr = NULL;
+ hi2s->TxXferSize = (uint16_t)0UL;
+ hi2s->TxXferCount = (uint16_t)0UL;
+
+
+ /* Set the I2S Rx DMA Half transfer complete callback */
+ hi2s->hdmarx->XferHalfCpltCallback = I2S_DMARxHalfCplt;
+
+ /* Set the I2S Rx DMA transfer complete callback */
+ hi2s->hdmarx->XferCpltCallback = I2S_DMARxCplt;
+
+ /* Set the DMA error callback */
+ hi2s->hdmarx->XferErrorCallback = I2S_DMAError;
+
+ /* Enable the Rx DMA Stream/Channel */
+ if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&hi2s->Instance->RXDR, (uint32_t)hi2s->pRxBuffPtr, hi2s->RxXferSize))
+ {
+ /* Update SPI error code */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ __HAL_UNLOCK(hi2s);
+ return HAL_ERROR;
+ }
+
+ /* Check if the I2S Rx request is already enabled */
+ if (HAL_IS_BIT_CLR(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN))
+ {
+ /* Enable Rx DMA Request */
+ SET_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN);
+ }
+
+ /* Check if the I2S is already enabled */
+ if (HAL_IS_BIT_CLR(hi2s->Instance->CR1, SPI_CR1_SPE))
+ {
+ /* Enable I2S peripheral */
+ __HAL_I2S_ENABLE(hi2s);
+ }
+
+ /* Start the transfer */
+ SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
+
+ __HAL_UNLOCK(hi2s);
+ return HAL_OK;
+}
+
+/**
+ * @brief Pauses the audio DMA Stream/Channel playing from the Media.
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_DMAPause(I2S_HandleTypeDef *hi2s)
+{
+ /* Process Locked */
+ __HAL_LOCK(hi2s);
+
+ uint32_t tickstart;
+
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+
+ /* Check if the I2S peripheral is in master mode */
+ if (IS_I2S_MASTER(hi2s->Init.Mode))
+ {
+ /* Check if there is a transfer on-going */
+ if (HAL_IS_BIT_SET(hi2s->Instance->CR1, SPI_CR1_CSTART) == 0UL)
+ {
+ /* Set error code to no on going transfer */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_NO_OGT);
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ __HAL_UNLOCK(hi2s);
+ return HAL_ERROR;
+ }
+
+ SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSUSP);
+
+ while (HAL_IS_BIT_SET(hi2s->Instance->CR1, SPI_CR1_CSTART) != 0UL)
+ {
+ if ((((HAL_GetTick() - tickstart) >= I2S_TIMEOUT) && (I2S_TIMEOUT != HAL_MAX_DELAY)) || (I2S_TIMEOUT == 0U))
+ {
+ /* Set the I2S State ready */
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hi2s);
+
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT);
+ hi2s->State = HAL_I2S_STATE_READY;
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Disable I2S peripheral */
+ __HAL_I2S_DISABLE(hi2s);
+
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hi2s);
+
+ return HAL_OK;
+ }
+ else
+ {
+ /* Set error code to not supported */
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_NOT_SUPPORTED);
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hi2s);
+
+ return HAL_ERROR;
+ }
+}
+
+/**
+ * @brief Resumes the audio DMA Stream/Channel playing from the Media.
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_DMAResume(I2S_HandleTypeDef *hi2s)
+{
+ /* Process Locked */
+ __HAL_LOCK(hi2s);
+
+ if (hi2s->State != HAL_I2S_STATE_READY)
+ {
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ __HAL_UNLOCK(hi2s);
+ return HAL_ERROR;
+ }
+
+ /* Set state and reset error code */
+ hi2s->State = HAL_I2S_STATE_BUSY;
+ hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
+
+ /* Enable I2S peripheral */
+ __HAL_I2S_ENABLE(hi2s);
+
+ /* Start the transfer */
+ SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hi2s);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Stops the audio DMA Stream/Channel playing from the Media.
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_I2S_DMAStop(I2S_HandleTypeDef *hi2s)
+{
+ HAL_StatusTypeDef errorcode = HAL_OK;
+ /* The Lock is not implemented on this API to allow the user application
+ to call the HAL SPI API under callbacks HAL_I2S_TxCpltCallback() or HAL_I2S_RxCpltCallback()
+ when calling HAL_DMA_Abort() API the DMA TX or RX Transfer complete interrupt is generated
+ and the correspond call back is executed HAL_I2S_TxCpltCallback() or HAL_I2S_RxCpltCallback()
+ */
+
+ /* Disable the I2S Tx/Rx DMA requests */
+ CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN);
+ CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN);
+
+ /* Abort the I2S DMA tx Stream/Channel */
+ if (hi2s->hdmatx != NULL)
+ {
+ /* Disable the I2S DMA tx Stream/Channel */
+ if (HAL_OK != HAL_DMA_Abort(hi2s->hdmatx))
+ {
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
+ errorcode = HAL_ERROR;
+ }
+ }
+
+ /* Abort the I2S DMA rx Stream/Channel */
+ if (hi2s->hdmarx != NULL)
+ {
+ /* Disable the I2S DMA rx Stream/Channel */
+ if (HAL_OK != HAL_DMA_Abort(hi2s->hdmarx))
+ {
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
+ errorcode = HAL_ERROR;
+ }
+ }
+
+ /* Disable I2S peripheral */
+ __HAL_I2S_DISABLE(hi2s);
+
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ return errorcode;
+}
+
+/**
+ * @brief This function handles I2S interrupt request.
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s)
+{
+ uint32_t itsource = hi2s->Instance->IER;
+ uint32_t itflag = hi2s->Instance->SR;
+ uint32_t trigger = itsource & itflag;
+
+ /* I2S in mode Receiver ------------------------------------------------*/
+ if ((I2S_CHECK_FLAG(itflag, I2S_FLAG_OVR) == RESET) && HAL_IS_BIT_SET(trigger, I2S_FLAG_RXP))
+ {
+ hi2s->RxISR(hi2s);
+ }
+
+ /* I2S in mode Transmitter -----------------------------------------------*/
+ if ((I2S_CHECK_FLAG(itflag, I2S_FLAG_UDR) == RESET) && HAL_IS_BIT_SET(trigger, I2S_FLAG_TXP))
+ {
+ hi2s->TxISR(hi2s);
+ }
+
+ /* I2S interrupt error ----------------------------------------------------*/
+ if ((trigger & (I2S_FLAG_OVR| I2S_FLAG_UDR | I2S_FLAG_FRE)) != 0UL)
+ {
+ /* I2S Overrun error interrupt occurred ---------------------------------*/
+ if (I2S_CHECK_FLAG(itflag, I2S_FLAG_OVR) != RESET)
+ {
+ /* Disable RXP and ERR interrupt */
+ __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR));
+
+ /* Set the error code and execute error callback*/
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR);
+ __HAL_I2S_CLEAR_OVRFLAG(hi2s);
+ }
+
+ /* I2S Underrun error interrupt occurred --------------------------------*/
+ if (I2S_CHECK_FLAG(itflag, I2S_FLAG_UDR) != RESET)
+ {
+ /* Disable TXP and ERR interrupt */
+ __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR));
+
+ /* Set the error code and execute error callback*/
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR);
+ __HAL_I2S_CLEAR_UDRFLAG(hi2s);
+ }
+
+ /* I2S Frame error interrupt occurred -----------------------------------*/
+ if (I2S_CHECK_FLAG(itflag, I2S_FLAG_FRE) != RESET)
+ {
+ /* Disable FRE and ERR interrupt */
+ __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_FRE | I2S_IT_ERR));
+
+ /* Set the error code and execute error callback*/
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_FRE);
+ __HAL_I2S_CLEAR_FREFLAG(hi2s);
+ }
+
+ /* Set the I2S State ready */
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ /* Call user error callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->ErrorCallback(hi2s);
+#else
+ HAL_I2S_ErrorCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+ }
+}
+
+/**
+ * @brief Tx Transfer Half completed callbacks
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+__weak void HAL_I2S_TxHalfCpltCallback(I2S_HandleTypeDef *hi2s)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hi2s);
+
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_I2S_TxHalfCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Tx Transfer completed callbacks
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+__weak void HAL_I2S_TxCpltCallback(I2S_HandleTypeDef *hi2s)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hi2s);
+
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_I2S_TxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Transfer half completed callbacks
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+__weak void HAL_I2S_RxHalfCpltCallback(I2S_HandleTypeDef *hi2s)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hi2s);
+
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_I2S_RxHalfCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Transfer completed callbacks
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+__weak void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hi2s);
+
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_I2S_RxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief I2S error callbacks
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+__weak void HAL_I2S_ErrorCallback(I2S_HandleTypeDef *hi2s)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hi2s);
+
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_I2S_ErrorCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup I2S_Exported_Functions_Group3 Peripheral State and Errors 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 I2S state
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval HAL state
+ */
+HAL_I2S_StateTypeDef HAL_I2S_GetState(I2S_HandleTypeDef *hi2s)
+{
+ return hi2s->State;
+}
+
+/**
+ * @brief Return the I2S error code
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval I2S Error Code
+ */
+uint32_t HAL_I2S_GetError(I2S_HandleTypeDef *hi2s)
+{
+ return hi2s->ErrorCode;
+}
+/**
+ * @}
+ */
+
+
+/**
+ * @brief DMA I2S 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 I2S_DMATxCplt(DMA_HandleTypeDef *hdma)
+{
+ I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
+
+ /* if DMA is configured in DMA_NORMAL Mode */
+ if (hdma->Init.Mode == DMA_NORMAL)
+ {
+ /* Disable Tx DMA Request */
+ CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN);
+
+ hi2s->TxXferCount = (uint16_t) 0UL;
+ hi2s->State = HAL_I2S_STATE_READY;
+ }
+ /* Call user Tx complete callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->TxCpltCallback(hi2s);
+#else
+ HAL_I2S_TxCpltCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+}
+
+/**
+ * @brief DMA I2S 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 I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
+{
+ I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
+
+ /* Call user Tx half complete callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->TxHalfCpltCallback(hi2s);
+#else
+ HAL_I2S_TxHalfCpltCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+}
+
+/**
+ * @brief DMA I2S 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 I2S_DMARxCplt(DMA_HandleTypeDef *hdma)
+{
+ I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
+
+ /* if DMA is configured in DMA_NORMAL Mode */
+ if (hdma->Init.Mode == DMA_NORMAL)
+ {
+ /* Disable Rx DMA Request */
+ CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN);
+ hi2s->RxXferCount = (uint16_t)0UL;
+ hi2s->State = HAL_I2S_STATE_READY;
+ }
+ /* Call user Rx complete callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->RxCpltCallback(hi2s);
+#else
+ HAL_I2S_RxCpltCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+}
+
+/**
+ * @brief DMA I2S 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 I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
+{
+ I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
+
+ /* Call user Rx half complete callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->RxHalfCpltCallback(hi2s);
+#else
+ HAL_I2S_RxHalfCpltCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+}
+
+/**
+ * @brief DMA I2S 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 I2S_DMAError(DMA_HandleTypeDef *hdma)
+{
+ I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
+
+ /* Disable Rx and Tx DMA Request */
+ CLEAR_BIT(hi2s->Instance->CFG1, (SPI_CFG1_RXDMAEN | SPI_CFG1_TXDMAEN));
+ hi2s->TxXferCount = (uint16_t) 0UL;
+ hi2s->RxXferCount = (uint16_t) 0UL;
+
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ /* Set the error code and execute error callback*/
+ SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
+ /* Call user error callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->ErrorCallback(hi2s);
+#else
+ HAL_I2S_ErrorCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+}
+
+/**
+ * @brief Manage the transmission 16-bit in Interrupt context
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+static void I2S_Transmit_16Bit_IT(I2S_HandleTypeDef *hi2s)
+{
+ /* Transmit data */
+#if defined (__GNUC__)
+ __IO uint16_t *ptxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->TXDR));
+
+ *ptxdr_16bits = *((uint16_t *)hi2s->pTxBuffPtr);
+#else
+ *((__IO uint16_t *)&hi2s->Instance->TXDR) = *((uint16_t *)hi2s->pTxBuffPtr);
+#endif /* __GNUC__ */
+ hi2s->pTxBuffPtr++;
+ hi2s->TxXferCount--;
+
+ if (hi2s->TxXferCount == 0UL)
+ {
+ /* Disable TXE and ERR interrupt */
+ __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR));
+
+ hi2s->State = HAL_I2S_STATE_READY;
+ /* Call user Tx complete callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->TxCpltCallback(hi2s);
+#else
+ HAL_I2S_TxCpltCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+ }
+}
+
+/**
+ * @brief Manage the transmission 32-bit in Interrupt context
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+static void I2S_Transmit_32Bit_IT(I2S_HandleTypeDef *hi2s)
+{
+ /* Transmit data */
+ hi2s->Instance->TXDR = *((uint32_t *)hi2s->pTxBuffPtr);
+ hi2s->pTxBuffPtr += 2;
+ hi2s->TxXferCount--;
+
+ if (hi2s->TxXferCount == 0UL)
+ {
+ /* Disable TXE and ERR interrupt */
+ __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR));
+
+ hi2s->State = HAL_I2S_STATE_READY;
+ /* Call user Tx complete callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->TxCpltCallback(hi2s);
+#else
+ HAL_I2S_TxCpltCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+ }
+}
+
+/**
+ * @brief Manage the reception 16-bit in Interrupt context
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+static void I2S_Receive_16Bit_IT(I2S_HandleTypeDef *hi2s)
+{
+ /* Receive data */
+#if defined (__GNUC__)
+ __IO uint16_t *prxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->RXDR));
+
+ *((uint16_t *)hi2s->pRxBuffPtr) = *prxdr_16bits;
+#else
+ *((uint16_t *)hi2s->pRxBuffPtr) = *((__IO uint16_t *)&hi2s->Instance->RXDR);
+#endif /* __GNUC__ */
+ hi2s->pRxBuffPtr++;
+ hi2s->RxXferCount--;
+
+ if (hi2s->RxXferCount == 0UL)
+ {
+ /* Disable RXNE and ERR interrupt */
+ __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR));
+
+ hi2s->State = HAL_I2S_STATE_READY;
+ /* Call user Rx complete callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->RxCpltCallback(hi2s);
+#else
+ HAL_I2S_RxCpltCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+ }
+}
+
+/**
+ * @brief Manage the reception 32-bit in Interrupt context
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @retval None
+ */
+static void I2S_Receive_32Bit_IT(I2S_HandleTypeDef *hi2s)
+{
+ /* Receive data */
+ *((uint32_t *)hi2s->pRxBuffPtr) = hi2s->Instance->RXDR;
+ hi2s->pRxBuffPtr += 2;
+ hi2s->RxXferCount--;
+
+ if (hi2s->RxXferCount == 0UL)
+ {
+ /* Disable RXNE and ERR interrupt */
+ __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR));
+
+ hi2s->State = HAL_I2S_STATE_READY;
+ /* Call user Rx complete callback */
+#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
+ hi2s->RxCpltCallback(hi2s);
+#else
+ HAL_I2S_RxCpltCallback(hi2s);
+#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
+ }
+}
+
+/**
+ * @brief This function handles I2S Communication Timeout.
+ * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
+ * the configuration information for I2S module
+ * @param Flag Flag checked
+ * @param State Value of the flag expected
+ * @param Timeout Duration of the timeout
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, FlagStatus State, uint32_t Timeout)
+{
+ uint32_t tickstart;
+
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait until flag is set to status*/
+ while (((__HAL_I2S_GET_FLAG(hi2s, Flag)) ? SET : RESET) != State)
+ {
+ if (Timeout != HAL_MAX_DELAY)
+ {
+ if (((HAL_GetTick() - tickstart) >= Timeout) || (Timeout == 0UL))
+ {
+ /* Set the I2S State ready */
+ hi2s->State = HAL_I2S_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hi2s);
+
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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