+++ /dev/null
-/**
- ******************************************************************************
- * @file stm32l1xx_hal_i2s.c
- * @author MCD Application Team
- * @version V1.0.0
- * @date 5-September-2014
- * @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.
- (##) 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 Channel.
- (+++) Enable the DMAx interface clock.
- (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
- (+++) Configure the DMA Tx/Rx Channel.
- (+++) Associate the initilalized 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 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.
- -@- Make sure that either:
- (+@) External clock source is configured after setting correctly
- the define constant HSE_VALUE in the stm32l1xx_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 USART 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
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32l1xx_hal.h"
-
-/** @addtogroup STM32L1xx_HAL_Driver
- * @{
- */
-
-/** @defgroup I2S I2S
- * @brief I2S HAL module driver
- * @{
- */
-
-#ifdef HAL_I2S_MODULE_ENABLED
-#if defined(STM32L100xC) || \
- defined(STM32L151xC) || defined(STM32L151xCA) || defined(STM32L151xD) || defined(STM32L151xE) || \
- defined(STM32L152xC) || defined(STM32L152xCA) || defined(STM32L152xD) || defined(STM32L152xE) || \
- defined(STM32L162xC) || defined(STM32L162xCA) || defined(STM32L162xD) || defined(STM32L162xE)
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-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_IT(I2S_HandleTypeDef *hi2s);
-static void I2S_Receive_IT(I2S_HandleTypeDef *hi2s);
-static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, uint32_t Status, uint32_t Timeout);
-
-/* Private 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-initialiaze 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 periperal.
- @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 = 2, i2sodd = 0, packetlength = 1;
- uint32_t tmp = 0, i2sclk = 0;
-
- /* Check the I2S handle allocation */
- if(hi2s == HAL_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));
-
- if(hi2s->State == HAL_I2S_STATE_RESET)
- {
- /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
- HAL_I2S_MspInit(hi2s);
- }
-
- hi2s->State = HAL_I2S_STATE_BUSY;
-
- /* If the default value has to be written, reinitialize i2sdiv and i2sodd*/
- if(hi2s->Init.AudioFreq == I2S_AUDIOFREQ_DEFAULT)
- {
- i2sodd = (uint32_t)0;
- i2sdiv = (uint32_t)2;
- }
- /* If the requested audio frequency is not the default, compute the prescaler */
- else
- {
- /* Check the frame length (For the Prescaler computing) *******************/
- if(hi2s->Init.DataFormat == I2S_DATAFORMAT_16B)
- {
- /* Packet length is 16 bits */
- packetlength = 1;
- }
- else
- {
- /* Packet length is 32 bits */
- packetlength = 2;
- }
-
- /* Get the source clock value: based on System Clock value */
- i2sclk = HAL_RCC_GetSysClockFreq();
-
- /* 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 / 256) * 10) / hi2s->Init.AudioFreq)) + 5);
- }
- else
- {
- /* MCLK output is disabled */
- tmp = (uint32_t)(((((i2sclk / (32 * packetlength)) *10 ) / hi2s->Init.AudioFreq)) + 5);
- }
-
- /* Remove the flatting point */
- tmp = tmp / 10;
-
- /* Check the parity of the divider */
- i2sodd = (uint32_t)(tmp & (uint32_t)1);
-
- /* Compute the i2sdiv prescaler */
- i2sdiv = (uint32_t)((tmp - i2sodd) / 2);
-
- /* Get the Mask for the Odd bit (SPI_I2SPR[8]) register */
- i2sodd = (uint32_t) (i2sodd << 8);
- }
-
- /* Test if the divider is 1 or 0 or greater than 0xFF */
- if((i2sdiv < 2) || (i2sdiv > 0xFF))
- {
- /* Set the default values */
- i2sdiv = 2;
- i2sodd = 0;
- }
-
- /*----------------------- SPIx I2SCFGR & I2SPR Configuration ----------------*/
- /* Clear I2SMOD, I2SE, I2SCFG, PCMSYNC, I2SSTD, CKPOL, DATLEN and CHLEN bits */
- /* And configure the I2S with the I2S_InitStruct values */
- MODIFY_REG( hi2s->Instance->I2SCFGR, (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN |\
- SPI_I2SCFGR_CKPOL | SPI_I2SCFGR_I2SSTD |\
- SPI_I2SCFGR_PCMSYNC | SPI_I2SCFGR_I2SCFG |\
- SPI_I2SCFGR_I2SE | SPI_I2SCFGR_I2SMOD),\
- (SPI_I2SCFGR_I2SMOD | hi2s->Init.Mode |\
- hi2s->Init.Standard | hi2s->Init.DataFormat |\
- hi2s->Init.CPOL));
-
- /* Write to SPIx I2SPR register the computed value */
- hi2s->Instance->I2SPR = (uint32_t)((uint32_t)i2sdiv | (uint32_t)(i2sodd | (uint32_t)hi2s->Init.MCLKOutput));
-
- 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 == HAL_NULL)
- {
- return HAL_ERROR;
- }
-
- hi2s->State = HAL_I2S_STATE_BUSY;
-
- /* Disable the I2S Peripheral Clock */
- __HAL_I2S_DISABLE(hi2s);
-
- /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
- HAL_I2S_MspDeInit(hi2s);
-
- 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)
-{
- /* 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)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_I2S_MspDeInit could be implemented in the user file
- */
-}
-
-/**
- * @}
- */
-
-/** @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((pData == HAL_NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)||\
- ((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
- {
- hi2s->TxXferSize = (Size << 1);
- hi2s->TxXferCount = (Size << 1);
- }
- else
- {
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
- }
-
- /* Set state and reset error code */
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->State = HAL_I2S_STATE_BUSY_TX;
- hi2s->pTxBuffPtr = pData;
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- while(hi2s->TxXferCount > 0)
- {
- /* Wait until TXE flag is set */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- hi2s->Instance->DR = (*hi2s->pTxBuffPtr++);
- hi2s->TxXferCount--;
- }
-
- /* Wait until TXE flag is set, to confirm the end of the transcation */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- /* Wait until Busy flag is reset */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_BSY, SET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-}
-
-/**
- * @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 continouse 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((pData == HAL_NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)||\
- ((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
- {
- hi2s->RxXferSize = (Size << 1);
- hi2s->RxXferCount = (Size << 1);
- }
- else
- {
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
- }
-
- /* Set state and reset error code */
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->State = HAL_I2S_STATE_BUSY_RX;
- hi2s->pRxBuffPtr = pData;
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Receive data */
- while(hi2s->RxXferCount > 0)
- {
- /* Wait until RXNE flag is set */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- (*hi2s->pRxBuffPtr++) = hi2s->Instance->DR;
- hi2s->RxXferCount--;
- }
-
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-}
-
-/**
- * @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 == HAL_NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- hi2s->pTxBuffPtr = pData;
- hi2s->State = HAL_I2S_STATE_BUSY_TX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
-
- if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)||\
- ((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
- {
- hi2s->TxXferSize = (Size << 1);
- hi2s->TxXferCount = (Size << 1);
- }
- else
- {
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
- }
-
- /* Enable TXE and ERR interrupt */
- __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_ERR));
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-}
-
-/**
- * @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-synchronisation
- * 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 == HAL_NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- hi2s->pRxBuffPtr = pData;
- hi2s->State = HAL_I2S_STATE_BUSY_RX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
-
- if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)||\
- ((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
- {
- hi2s->RxXferSize = (Size << 1);
- hi2s->RxXferCount = (Size << 1);
- }
- else
- {
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
- }
-
- /* Enable TXE and ERR interrupt */
- __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_RXNE | I2S_IT_ERR));
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-}
-
-/**
- * @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 == HAL_NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- hi2s->pTxBuffPtr = pData;
- hi2s->State = HAL_I2S_STATE_BUSY_TX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
-
- if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)||\
- ((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
- {
- hi2s->TxXferSize = (Size << 1);
- hi2s->TxXferCount = (Size << 1);
- }
- else
- {
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
- }
-
- /* Set the I2S Tx DMA Half transfert complete callback */
- hi2s->hdmatx->XferHalfCpltCallback = I2S_DMATxHalfCplt;
-
- /* Set the I2S Tx DMA transfert complete callback */
- hi2s->hdmatx->XferCpltCallback = I2S_DMATxCplt;
-
- /* Set the DMA error callback */
- hi2s->hdmatx->XferErrorCallback = I2S_DMAError;
-
- /* Enable the Tx DMA Channel */
- HAL_DMA_Start_IT(hi2s->hdmatx, (uint32_t)hi2s->pTxBuffPtr, (uint32_t)&hi2s->Instance->DR, hi2s->TxXferSize);
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Check if the I2S Tx request is already enabled */
- if((hi2s->Instance->CR2 & SPI_CR2_TXDMAEN) != SPI_CR2_TXDMAEN)
- {
- /* Enable Tx DMA Request */
- SET_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-}
-
-/**
- * @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 == HAL_NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- hi2s->pRxBuffPtr = pData;
- hi2s->State = HAL_I2S_STATE_BUSY_RX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
-
- if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)||\
- ((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
- {
- hi2s->RxXferSize = (Size << 1);
- hi2s->RxXferCount = (Size << 1);
- }
- else
- {
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
- }
-
-
- /* Set the I2S Rx DMA Half transfert complete callback */
- hi2s->hdmarx->XferHalfCpltCallback = I2S_DMARxHalfCplt;
-
- /* Set the I2S Rx DMA transfert complete callback */
- hi2s->hdmarx->XferCpltCallback = I2S_DMARxCplt;
-
- /* Set the DMA error callback */
- hi2s->hdmarx->XferErrorCallback = I2S_DMAError;
-
- /* Check if Master Receiver mode is selected */
- if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_MASTER_RX)
- {
- /* Clear the Overrun Flag by a read operation to the SPI_DR register followed by a read
- access to the SPI_SR register. */
- __HAL_I2S_CLEAR_OVRFLAG(hi2s);
- }
-
- /* Enable the Rx DMA Channel */
- HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&hi2s->Instance->DR, (uint32_t)hi2s->pRxBuffPtr, hi2s->RxXferSize);
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Check if the I2S Rx request is already enabled */
- if((hi2s->Instance->CR2 &SPI_CR2_RXDMAEN) != SPI_CR2_RXDMAEN)
- {
- /* Enable Rx DMA Request */
- SET_BIT(hi2s->Instance->CR2, SPI_CR2_RXDMAEN);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Pauses the audio stream 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);
-
- if(hi2s->State == HAL_I2S_STATE_BUSY_TX)
- {
- /* Disable the I2S DMA Tx request */
- CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN);
- }
- else if(hi2s->State == HAL_I2S_STATE_BUSY_RX)
- {
- /* Disable the I2S DMA Rx request */
- CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_RXDMAEN);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
-}
-
-/**
- * @brief Resumes the audio stream 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_BUSY_TX)
- {
- /* Enable the I2S DMA Tx request */
- SET_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN);
- }
- else if(hi2s->State == HAL_I2S_STATE_BUSY_RX)
- {
- /* Enable the I2S DMA Rx request */
- SET_BIT(hi2s->Instance->CR2, SPI_CR2_RXDMAEN);
- }
-
- /* If the I2S peripheral is still not enabled, enable it */
- if ((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SE) == 0)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
-}
-
-/**
- * @brief Resumes the audio stream 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)
-{
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- /* Disable the I2S Tx/Rx DMA requests */
- CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN);
- CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_RXDMAEN);
-
- /* Abort the I2S DMA Channel tx */
- if(hi2s->hdmatx != HAL_NULL)
- {
- /* Disable the I2S DMA channel */
- __HAL_DMA_DISABLE(hi2s->hdmatx);
- HAL_DMA_Abort(hi2s->hdmatx);
- }
- /* Abort the I2S DMA Channel rx */
- if(hi2s->hdmarx != HAL_NULL)
- {
- /* Disable the I2S DMA channel */
- __HAL_DMA_DISABLE(hi2s->hdmarx);
- HAL_DMA_Abort(hi2s->hdmarx);
- }
-
- /* Disable I2S peripheral */
- __HAL_I2S_DISABLE(hi2s);
-
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
-}
-
-/**
- * @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 i2ssr = hi2s->Instance->SR;
-
- /* I2S in mode Receiver ------------------------------------------------*/
- if(((i2ssr & I2S_FLAG_OVR) != I2S_FLAG_OVR) &&
- ((i2ssr & I2S_FLAG_RXNE) == I2S_FLAG_RXNE) && (__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_RXNE) != RESET))
- {
- I2S_Receive_IT(hi2s);
- return;
- }
-
- /* I2S in mode Tramitter -----------------------------------------------*/
- if(((i2ssr & I2S_FLAG_TXE) == I2S_FLAG_TXE) && (__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_TXE) != RESET))
- {
- I2S_Transmit_IT(hi2s);
- return;
- }
-
- /* I2S interrupt error -------------------------------------------------*/
- if(__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_ERR) != RESET)
- {
- /* I2S Overrun error interrupt occured ---------------------------------*/
- if((i2ssr & I2S_FLAG_OVR) == I2S_FLAG_OVR)
- {
- /* Disable RXNE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXNE | I2S_IT_ERR));
-
- /* Set the error code and execute error callback*/
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR);
- }
-
- /* I2S Underrun error interrupt occured --------------------------------*/
- if((i2ssr & I2S_FLAG_UDR) == I2S_FLAG_UDR)
- {
- /* Disable TXE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_ERR));
-
- /* Set the error code and execute error callback*/
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR);
- }
-
- /* I2S Frame format error interrupt occured --------------------------*/
- if((i2ssr & I2S_FLAG_FRE) == I2S_FLAG_FRE)
- {
- /* Disable TXE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_RXNE | I2S_IT_ERR));
-
- /* Set the error code and execute error callback*/
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_FRE);
- }
-
- /* Set the I2S State ready */
- hi2s->State = HAL_I2S_STATE_READY;
- /* Call the Error Callback */
- HAL_I2S_ErrorCallback(hi2s);
- }
-}
-
-/**
- * @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)
-{
- /* 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)
-{
- /* 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)
-{
- /* 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)
-{
- /* 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)
-{
- /* 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
- */
-HAL_I2S_ErrorTypeDef HAL_I2S_GetError(I2S_HandleTypeDef *hi2s)
-{
- return hi2s->ErrorCode;
-}
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-
-/** @defgroup I2S_Private_Functions I2S Private Functions
- * @{
- */
-/**
- * @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;
-
- if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
- {
- /* Disable Tx DMA Request */
- CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN);
-
- hi2s->TxXferCount = 0;
- hi2s->State = HAL_I2S_STATE_READY;
- }
- HAL_I2S_TxCpltCallback(hi2s);
-}
-
-/**
- * @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;
-
- HAL_I2S_TxHalfCpltCallback(hi2s);
-}
-
-/**
- * @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;
-
- if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
- {
- /* Disable Rx DMA Request */
- CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_RXDMAEN);
- hi2s->RxXferCount = 0;
- hi2s->State = HAL_I2S_STATE_READY;
- }
- HAL_I2S_RxCpltCallback(hi2s);
-}
-
-/**
- * @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;
-
- HAL_I2S_RxHalfCpltCallback(hi2s);
-}
-
-/**
- * @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;
-
- /* Disable Rx and Tx DMA Request */
- CLEAR_BIT(hi2s->Instance->CR2, (SPI_CR2_RXDMAEN | SPI_CR2_TXDMAEN));
- hi2s->TxXferCount = 0;
- hi2s->RxXferCount = 0;
-
- hi2s->State= HAL_I2S_STATE_READY;
-
- /* Set the error code and execute error callback*/
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
- HAL_I2S_ErrorCallback(hi2s);
-}
-
-/**
- * @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
- * @retval None
- */
-static void I2S_Transmit_IT(I2S_HandleTypeDef *hi2s)
-{
- /* Transmit data */
- hi2s->Instance->DR = (*hi2s->pTxBuffPtr++);
- hi2s->TxXferCount--;
-
- if(hi2s->TxXferCount == 0)
- {
- /* Disable TXE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_ERR));
-
- hi2s->State = HAL_I2S_STATE_READY;
- HAL_I2S_TxCpltCallback(hi2s);
- }
-}
-
-/**
- * @brief Receive an amount of data in non-blocking mode with Interrupt
- * @param hi2s: I2S handle
- * @retval None
- */
-static void I2S_Receive_IT(I2S_HandleTypeDef *hi2s)
-{
- /* Receive data */
- (*hi2s->pRxBuffPtr++) = hi2s->Instance->DR;
- hi2s->RxXferCount--;
-
- if(hi2s->RxXferCount == 0)
- {
- /* Disable RXNE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXNE | I2S_IT_ERR));
-
- hi2s->State = HAL_I2S_STATE_READY;
- HAL_I2S_RxCpltCallback(hi2s);
- }
-}
-
-
-/**
- * @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 Status: 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, uint32_t Status, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait until flag is set */
- if(Status == RESET)
- {
- while(__HAL_I2S_GET_FLAG(hi2s, Flag) == RESET)
- {
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Set the I2S State ready */
- hi2s->State= HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_TIMEOUT;
- }
- }
- }
- }
- else
- {
- while(__HAL_I2S_GET_FLAG(hi2s, Flag) != RESET)
- {
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Set the I2S State ready */
- hi2s->State= HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_TIMEOUT;
- }
- }
- }
- }
- return HAL_OK;
-}
-
-/**
- * @}
- */
-#endif /* STM32L100xC ||
- STM32L151xC || STM32L151xCA || STM32L151xD || STM32L151xE ||\\
- STM32L152xC || STM32L152xCA || STM32L152xD || STM32L152xE ||\\
- STM32L162xC || STM32L162xCA || STM32L162xD || STM32L162xE */
-#endif /* HAL_I2S_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
projects / qmk_firmware.git / blobdiff