From a81fc41c3eb99e8fc52aa734ee63e13c937aab81 Mon Sep 17 00:00:00 2001 From: JanHenrik Date: Sun, 19 Jan 2020 00:56:37 +0100 Subject: added blink example --- .../STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2s.c | 1800 ++++++++++++++++++++ 1 file changed, 1800 insertions(+) create mode 100644 Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2s.c (limited to 'Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2s.c') diff --git a/Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2s.c b/Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2s.c new file mode 100644 index 0000000..55aff5e --- /dev/null +++ b/Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2s.c @@ -0,0 +1,1800 @@ +/** + ****************************************************************************** + * @file stm32f0xx_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. + -@- Make sure that either: + (+@) External clock source is configured after setting correctly + the define constant EXTERNAL_CLOCK_VALUE in the stm32f0xx_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 1U + 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 + * + *

© Copyright (c) 2016 STMicroelectronics. + * All rights reserved.

+ * + * 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 "stm32f0xx_hal.h" + +#ifdef HAL_I2S_MODULE_ENABLED + +#if defined(SPI_I2S_SUPPORT) +/** @addtogroup STM32F0xx_HAL_Driver + * @{ + */ + +/** @defgroup I2S I2S + * @brief I2S HAL module driver + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* 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_IT(I2S_HandleTypeDef *hi2s); +static void I2S_Receive_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; + + /* 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)); + + if (hi2s->State == HAL_I2S_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hi2s->Lock = HAL_UNLOCKED; + +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) + /* 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; + + /*----------------------- SPIx I2SCFGR & I2SPR Configuration ----------------*/ + /* Clear I2SMOD, I2SE, I2SCFG, PCMSYNC, I2SSTD, CKPOL, DATLEN and CHLEN bits */ + CLEAR_BIT(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)); + hi2s->Instance->I2SPR = 0x0002U; + + /*----------------------- I2SPR: 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) + { + /* Packet length is 16 bits */ + packetlength = 16U; + } + else + { + /* Packet length is 32 bits */ + packetlength = 32U; + } + + /* I2S standard */ + if (hi2s->Init.Standard <= I2S_STANDARD_LSB) + { + /* In I2S standard packet lenght is multiplied by 2 */ + packetlength = packetlength * 2U; + } + + /* 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 */ + if (hi2s->Init.DataFormat != I2S_DATAFORMAT_16B) + { + tmp = (uint32_t)(((((i2sclk / (packetlength * 4U)) * 10U) / hi2s->Init.AudioFreq)) + 5U); + } + else + { + tmp = (uint32_t)(((((i2sclk / (packetlength * 8U)) * 10U) / hi2s->Init.AudioFreq)) + 5U); + } + } + else + { + /* MCLK output is disabled */ + tmp = (uint32_t)(((((i2sclk / packetlength) * 10U) / hi2s->Init.AudioFreq)) + 5U); + } + + /* Remove the flatting point */ + tmp = tmp / 10U; + + /* Check the parity of the divider */ + i2sodd = (uint32_t)(tmp & (uint32_t)1U); + + /* Compute the i2sdiv prescaler */ + i2sdiv = (uint32_t)((tmp - i2sodd) / 2U); + + /* Get the Mask for the Odd bit (SPI_I2SPR[8]) register */ + i2sodd = (uint32_t)(i2sodd << 8U); + } + else + { + /* Set the default values */ + i2sdiv = 2U; + i2sodd = 0U; + } + + /* Test if the divider is 1 or 0 or greater than 0xFF */ + if ((i2sdiv < 2U) || (i2sdiv > 0xFFU)) + { + /* Set the error code and execute error callback*/ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_PRESCALER); + return HAL_ERROR; + } + + /*----------------------- SPIx I2SCFGR & I2SPR Configuration ----------------*/ + + /* Write to SPIx I2SPR register the computed value */ + hi2s->Instance->I2SPR = (uint32_t)((uint32_t)i2sdiv | (uint32_t)(i2sodd | (uint32_t)hi2s->Init.MCLKOutput)); + + /* 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)); + +#if defined(SPI_I2SCFGR_ASTRTEN) + if ((hi2s->Init.Standard == I2S_STANDARD_PCM_SHORT) || ((hi2s->Init.Standard == I2S_STANDARD_PCM_LONG))) + { + /* Write to SPIx I2SCFGR */ + SET_BIT(hi2s->Instance->I2SCFGR, SPI_I2SCFGR_ASTRTEN); + } +#endif /* SPI_I2SCFGR_ASTRTEN */ + + 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 == 1U) + 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 == 1U) +/** + * @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) +{ + uint32_t tmpreg_cfgr; + + if ((pData == NULL) || (Size == 0U)) + { + 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; + + tmpreg_cfgr = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN); + + if ((tmpreg_cfgr == I2S_DATAFORMAT_24B) || (tmpreg_cfgr == I2S_DATAFORMAT_32B)) + { + hi2s->TxXferSize = (Size << 1U); + hi2s->TxXferCount = (Size << 1U); + } + else + { + hi2s->TxXferSize = Size; + hi2s->TxXferCount = Size; + } + + tmpreg_cfgr = hi2s->Instance->I2SCFGR; + + /* Check if the I2S is already enabled */ + if ((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Wait until TXE flag is set */ + if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXE, 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 > 0U) + { + hi2s->Instance->DR = (*hi2s->pTxBuffPtr); + hi2s->pTxBuffPtr++; + hi2s->TxXferCount--; + + /* Wait until TXE flag is set */ + if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXE, 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); + } + } + + /* Check if Slave mode is selected */ + if (((tmpreg_cfgr & SPI_I2SCFGR_I2SCFG) == I2S_MODE_SLAVE_TX) + || ((tmpreg_cfgr & SPI_I2SCFGR_I2SCFG) == I2S_MODE_SLAVE_RX)) + { + /* Wait until Busy flag is reset */ + if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_BSY, RESET, 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; + } + } + + 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) +{ + uint32_t tmpreg_cfgr; + + if ((pData == NULL) || (Size == 0U)) + { + 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; + + tmpreg_cfgr = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN); + + if ((tmpreg_cfgr == I2S_DATAFORMAT_24B) || (tmpreg_cfgr == I2S_DATAFORMAT_32B)) + { + hi2s->RxXferSize = (Size << 1U); + hi2s->RxXferCount = (Size << 1U); + } + else + { + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + } + + /* 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 Master Receiver mode is selected */ + if ((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_MASTER_RX) + { + /* Clear the Overrun Flag by a read operation on the SPI_DR register followed by a read + access to the SPI_SR register. */ + __HAL_I2S_CLEAR_OVRFLAG(hi2s); + } + + /* Receive data */ + while (hi2s->RxXferCount > 0U) + { + /* Wait until RXNE flag is set */ + if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_RXNE, 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; + } + + (*hi2s->pRxBuffPtr) = (uint16_t)hi2s->Instance->DR; + 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) +{ + uint32_t tmpreg_cfgr; + + if ((pData == NULL) || (Size == 0U)) + { + 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; + + tmpreg_cfgr = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN); + + if ((tmpreg_cfgr == I2S_DATAFORMAT_24B) || (tmpreg_cfgr == I2S_DATAFORMAT_32B)) + { + hi2s->TxXferSize = (Size << 1U); + hi2s->TxXferCount = (Size << 1U); + } + 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); + } + + __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) +{ + uint32_t tmpreg_cfgr; + + if ((pData == NULL) || (Size == 0U)) + { + 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; + + tmpreg_cfgr = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN); + + if ((tmpreg_cfgr == I2S_DATAFORMAT_24B) || (tmpreg_cfgr == I2S_DATAFORMAT_32B)) + { + hi2s->RxXferSize = (Size << 1U); + hi2s->RxXferCount = (Size << 1U); + } + else + { + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + } + + /* Enable RXNE 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); + } + + __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) +{ + uint32_t tmpreg_cfgr; + + if ((pData == NULL) || (Size == 0U)) + { + 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; + + tmpreg_cfgr = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN); + + if ((tmpreg_cfgr == I2S_DATAFORMAT_24B) || (tmpreg_cfgr == I2S_DATAFORMAT_32B)) + { + hi2s->TxXferSize = (Size << 1U); + hi2s->TxXferCount = (Size << 1U); + } + else + { + hi2s->TxXferSize = Size; + hi2s->TxXferCount = Size; + } + + /* 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->DR, + 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 is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->I2SCFGR, SPI_I2SCFGR_I2SE)) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Check if the I2S Tx request is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CR2, SPI_CR2_TXDMAEN)) + { + /* Enable Tx DMA Request */ + SET_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN); + } + + __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) +{ + uint32_t tmpreg_cfgr; + + if ((pData == NULL) || (Size == 0U)) + { + 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; + + tmpreg_cfgr = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN); + + if ((tmpreg_cfgr == I2S_DATAFORMAT_24B) || (tmpreg_cfgr == I2S_DATAFORMAT_32B)) + { + hi2s->RxXferSize = (Size << 1U); + hi2s->RxXferCount = (Size << 1U); + } + else + { + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + } + + /* 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; + + /* 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 Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&hi2s->Instance->DR, (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 is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->I2SCFGR, SPI_I2SCFGR_I2SE)) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Check if the I2S Rx request is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CR2, SPI_CR2_RXDMAEN)) + { + /* Enable Rx DMA Request */ + SET_BIT(hi2s->Instance->CR2, SPI_CR2_RXDMAEN); + } + + __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); + + 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); + } + else + { + /* nothing to do */ + } + + /* Process Unlocked */ + __HAL_UNLOCK(hi2s); + + return HAL_OK; +} + +/** + * @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_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); + } + else + { + /* nothing to do */ + } + + /* If the I2S peripheral is still not enabled, enable it */ + if (HAL_IS_BIT_CLR(hi2s->Instance->I2SCFGR, SPI_I2SCFGR_I2SE)) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* 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->CR2, SPI_CR2_TXDMAEN); + CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_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->CR2; + uint32_t itflag = hi2s->Instance->SR; + + /* I2S in mode Receiver ------------------------------------------------*/ + if ((I2S_CHECK_FLAG(itflag, I2S_FLAG_OVR) == RESET) && + (I2S_CHECK_FLAG(itflag, I2S_FLAG_RXNE) != RESET) && (I2S_CHECK_IT_SOURCE(itsource, I2S_IT_RXNE) != RESET)) + { + I2S_Receive_IT(hi2s); + return; + } + + /* I2S in mode Tramitter -----------------------------------------------*/ + if ((I2S_CHECK_FLAG(itflag, I2S_FLAG_TXE) != RESET) && (I2S_CHECK_IT_SOURCE(itsource, I2S_IT_TXE) != RESET)) + { + I2S_Transmit_IT(hi2s); + return; + } + + /* I2S interrupt error -------------------------------------------------*/ + if (I2S_CHECK_IT_SOURCE(itsource, I2S_IT_ERR) != RESET) + { + /* I2S Overrun error interrupt occurred ---------------------------------*/ + if (I2S_CHECK_FLAG(itflag, I2S_FLAG_OVR) != RESET) + { + /* 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 occurred --------------------------------*/ + if (I2S_CHECK_FLAG(itflag, I2S_FLAG_UDR) != RESET) + { + /* 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); + } + + /* Set the I2S State ready */ + hi2s->State = HAL_I2S_STATE_READY; + + /* Call user error callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) + 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; +} +/** + * @} + */ + +/** + * @} + */ + +/** @addtogroup 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; /* 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->CR2, SPI_CR2_TXDMAEN); + + hi2s->TxXferCount = 0U; + hi2s->State = HAL_I2S_STATE_READY; + } + /* Call user Tx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) + 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 == 1U) + 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->CR2, SPI_CR2_RXDMAEN); + hi2s->RxXferCount = 0U; + hi2s->State = HAL_I2S_STATE_READY; + } + /* Call user Rx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) + 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 == 1U) + 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->CR2, (SPI_CR2_RXDMAEN | SPI_CR2_TXDMAEN)); + hi2s->TxXferCount = 0U; + hi2s->RxXferCount = 0U; + + 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 == 1U) + hi2s->ErrorCallback(hi2s); +#else + HAL_I2S_ErrorCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ +} + +/** + * @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->pTxBuffPtr++; + hi2s->TxXferCount--; + + if (hi2s->TxXferCount == 0U) + { + /* Disable TXE and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_ERR)); + + hi2s->State = HAL_I2S_STATE_READY; + /* Call user Tx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) + hi2s->TxCpltCallback(hi2s); +#else + HAL_I2S_TxCpltCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } +} + +/** + * @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 + * @retval None + */ +static void I2S_Receive_IT(I2S_HandleTypeDef *hi2s) +{ + /* Receive data */ + (*hi2s->pRxBuffPtr) = (uint16_t)hi2s->Instance->DR; + hi2s->pRxBuffPtr++; + hi2s->RxXferCount--; + + if (hi2s->RxXferCount == 0U) + { + /* Disable RXNE and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXNE | I2S_IT_ERR)); + + hi2s->State = HAL_I2S_STATE_READY; + /* Call user Rx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) + 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 == 0U)) + { + /* Set the I2S State ready */ + hi2s->State = HAL_I2S_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hi2s); + + return HAL_TIMEOUT; + } + } + } + return HAL_OK; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +#endif /* SPI_I2S_SUPPORT */ + +#endif /* HAL_I2S_MODULE_ENABLED */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit