diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c')
-rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c | 4488 |
1 files changed, 2542 insertions, 1946 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c index e6f43c542e..30db621969 100644 --- a/bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_i2s.c @@ -1,1952 +1,2548 @@ -/**
- ******************************************************************************
- * @file stm32h7xx_hal_i2s.c
- * @author MCD Application Team
- * @brief I2S HAL module driver.
- * This file provides firmware functions to manage the following
- * functionalities of the Integrated Interchip Sound (I2S) peripheral:
- * + Initialization and de-initialization functions
- * + IO operation functions
- * + Peripheral State and Errors functions
- @verbatim
- ===============================================================================
- ##### How to use this driver #####
- ===============================================================================
- [..]
- The I2S HAL driver can be used as follow:
-
- (#) Declare a I2S_HandleTypeDef handle structure.
- (#) Initialize the I2S low level resources by implement the HAL_I2S_MspInit() API:
- (##) Enable the SPIx interface clock.
- (##) I2S pins configuration:
- (+++) Enable the clock for the I2S GPIOs.
- (+++) Configure these I2S pins as alternate function pull-up.
- (##) NVIC configuration if you need to use interrupt process (HAL_I2S_Transmit_IT()
- and HAL_I2S_Receive_IT() APIs).
- (+++) Configure the I2Sx interrupt priority.
- (+++) Enable the NVIC I2S IRQ handle.
- (##) DMA Configuration if you need to use DMA process (HAL_I2S_Transmit_DMA()
- and HAL_I2S_Receive_DMA() APIs:
- (+++) Declare a DMA handle structure for the Tx/Rx Stream/Channel.
- (+++) Enable the DMAx interface clock.
- (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
- (+++) Configure the DMA Tx/Rx Stream/Channel.
- (+++) Associate the initialized DMA handle to the I2S DMA Tx/Rx handle.
- (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the
- DMA Tx/Rx Stream/Channel.
-
- (#) Program the Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity
- using HAL_I2S_Init() function.
-
- -@- The specific I2S interrupts (Transmission complete interrupt,
- RXNE interrupt and Error Interrupts) will be managed using the macros
- __HAL_I2S_ENABLE_IT() and __HAL_I2S_DISABLE_IT() inside the transmit and receive process.
-
- (+@) External clock source is configured after setting correctly
- the define constant EXTERNAL_CLOCK_VALUE in the stm32h7xx_hal_conf.h file.
-
- (#) Three mode of operations are available within this driver :
-
- *** Polling mode IO operation ***
- =================================
- [..]
- (+) Send an amount of data in blocking mode using HAL_I2S_Transmit()
- (+) Receive an amount of data in blocking mode using HAL_I2S_Receive()
-
- *** Interrupt mode IO operation ***
- ===================================
- [..]
- (+) Send an amount of data in non blocking mode using HAL_I2S_Transmit_IT()
- (+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback
- (+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_TxCpltCallback
- (+) Receive an amount of data in non blocking mode using HAL_I2S_Receive_IT()
- (+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback
- (+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_RxCpltCallback
- (+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
- add his own code by customization of function pointer HAL_I2S_ErrorCallback
-
- *** DMA mode IO operation ***
- ==============================
- [..]
- (+) Send an amount of data in non blocking mode (DMA) using HAL_I2S_Transmit_DMA()
- (+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback
- (+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_TxCpltCallback
- (+) Receive an amount of data in non blocking mode (DMA) using HAL_I2S_Receive_DMA()
- (+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback
- (+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_RxCpltCallback
- (+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
- add his own code by customization of function pointer HAL_I2S_ErrorCallback
- (+) Pause the DMA Transfer using HAL_I2S_DMAPause()
- (+) Resume the DMA Transfer using HAL_I2S_DMAResume()
- (+) Stop the DMA Transfer using HAL_I2S_DMAStop()
-
- *** I2S HAL driver macros list ***
- ===================================
- [..]
- Below the list of most used macros in I2S HAL driver.
-
- (+) __HAL_I2S_ENABLE: Enable the specified SPI peripheral (in I2S mode)
- (+) __HAL_I2S_DISABLE: Disable the specified SPI peripheral (in I2S mode)
- (+) __HAL_I2S_ENABLE_IT : Enable the specified I2S interrupts
- (+) __HAL_I2S_DISABLE_IT : Disable the specified I2S interrupts
- (+) __HAL_I2S_GET_FLAG: Check whether the specified I2S flag is set or not
-
- [..]
- (@) You can refer to the I2S HAL driver header file for more useful macros
-
- *** I2S HAL driver macros list ***
- ===================================
- [..]
- Callback registration:
-
- (#) The compilation flag USE_HAL_I2S_REGISTER_CALLBACKS when set to 1UL
- allows the user to configure dynamically the driver callbacks.
- Use Functions HAL_I2S_RegisterCallback() to register an interrupt callback.
-
- Function HAL_I2S_RegisterCallback() allows to register following callbacks:
- (+) TxCpltCallback : I2S Tx Completed callback
- (+) RxCpltCallback : I2S Rx Completed callback
- (+) TxHalfCpltCallback : I2S Tx Half Completed callback
- (+) RxHalfCpltCallback : I2S Rx Half Completed callback
- (+) ErrorCallback : I2S Error callback
- (+) MspInitCallback : I2S Msp Init callback
- (+) MspDeInitCallback : I2S Msp DeInit callback
- This function takes as parameters the HAL peripheral handle, the Callback ID
- and a pointer to the user callback function.
-
-
- (#) Use function HAL_I2S_UnRegisterCallback to reset a callback to the default
- weak function.
- HAL_I2S_UnRegisterCallback takes as parameters the HAL peripheral handle,
- and the Callback ID.
- This function allows to reset following callbacks:
- (+) TxCpltCallback : I2S Tx Completed callback
- (+) RxCpltCallback : I2S Rx Completed callback
- (+) TxHalfCpltCallback : I2S Tx Half Completed callback
- (+) RxHalfCpltCallback : I2S Rx Half Completed callback
- (+) ErrorCallback : I2S Error callback
- (+) MspInitCallback : I2S Msp Init callback
- (+) MspDeInitCallback : I2S Msp DeInit callback
-
- By default, after the HAL_I2S_Init() and when the state is HAL_I2S_STATE_RESET
- all callbacks are set to the corresponding weak functions:
- examples HAL_I2S_MasterTxCpltCallback(), HAL_I2S_MasterRxCpltCallback().
- Exception done for MspInit and MspDeInit functions that are
- reset to the legacy weak functions in the HAL_I2S_Init()/ HAL_I2S_DeInit() only when
- these callbacks are null (not registered beforehand).
- If MspInit or MspDeInit are not null, the HAL_I2S_Init()/ HAL_I2S_DeInit()
- keep and use the user MspInit/MspDeInit callbacks (registered beforehand) whatever the state.
-
- Callbacks can be registered/unregistered in HAL_I2S_STATE_READY state only.
- Exception done MspInit/MspDeInit functions that can be registered/unregistered
- in HAL_I2S_STATE_READY or HAL_I2S_STATE_RESET state,
- thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit.
- Then, the user first registers the MspInit/MspDeInit user callbacks
- using HAL_I2S_RegisterCallback() before calling HAL_I2S_DeInit()
- or HAL_I2S_Init() function.
-
- When The compilation define USE_HAL_I2S_REGISTER_CALLBACKS is set to 0 or
- not defined, the callback registering feature is not available
- and weak (surcharged) callbacks are used.
-
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© Copyright (c) 2017 STMicroelectronics.
- * All rights reserved.</center></h2>
- *
- * This software component is licensed by ST under BSD 3-Clause license,
- * the "License"; You may not use this file except in compliance with the
- * License. You may obtain a copy of the License at:
- * opensource.org/licenses/BSD-3-Clause
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32h7xx_hal.h"
-
-#ifdef HAL_I2S_MODULE_ENABLED
-
-/** @addtogroup STM32H7xx_HAL_Driver
- * @{
- */
-
-/** @defgroup I2S I2S
+/** + ****************************************************************************** + * @file stm32h7xx_hal_i2s.c + * @author MCD Application Team + * @brief I2S HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the Integrated Interchip Sound (I2S) peripheral: + * + Initialization and de-initialization functions + * + IO operation functions + * + Peripheral State and Errors functions + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + =============================================================================== + ##### How to use this driver ##### + =============================================================================== + [..] + The I2S HAL driver can be used as follow: + + (#) Declare a I2S_HandleTypeDef handle structure. + (#) Initialize the I2S low level resources by implement the HAL_I2S_MspInit() API: + (##) Enable the SPIx interface clock. + (##) I2S pins configuration: + (+++) Enable the clock for the I2S GPIOs. + (+++) Configure these I2S pins as alternate function pull-up. + (##) NVIC configuration if you need to use interrupt process (HAL_I2S_Transmit_IT() + and HAL_I2S_Receive_IT() APIs). + (+++) Configure the I2Sx interrupt priority. + (+++) Enable the NVIC I2S IRQ handle. + (##) DMA Configuration if you need to use DMA process (HAL_I2S_Transmit_DMA() + and HAL_I2S_Receive_DMA() APIs: + (+++) Declare a DMA handle structure for the Tx/Rx Stream/Channel. + (+++) Enable the DMAx interface clock. + (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters. + (+++) Configure the DMA Tx/Rx Stream/Channel. + (+++) Associate the initialized DMA handle to the I2S DMA Tx/Rx handle. + (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the + DMA Tx/Rx Stream/Channel. + + (#) Program the Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity + using HAL_I2S_Init() function. + + -@- The specific I2S interrupts (Transmission complete interrupt, + RXNE interrupt and Error Interrupts) will be managed using the macros + __HAL_I2S_ENABLE_IT() and __HAL_I2S_DISABLE_IT() inside the transmit and receive process. + + (+@) External clock source is configured after setting correctly + the define constant EXTERNAL_CLOCK_VALUE in the stm32h7xx_hal_conf.h file. + + (#) Three mode of operations are available within this driver : + + *** Polling mode IO operation *** + ================================= + [..] + (+) Send an amount of data in blocking mode using HAL_I2S_Transmit() + (+) Receive an amount of data in blocking mode using HAL_I2S_Receive() + + *** Interrupt mode IO operation *** + =================================== + [..] + (+) Send an amount of data in non blocking mode using HAL_I2S_Transmit_IT() + (+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can + add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback + (+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_I2S_TxCpltCallback + (+) Receive an amount of data in non blocking mode using HAL_I2S_Receive_IT() + (+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can + add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback + (+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_I2S_RxCpltCallback + (+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_I2S_ErrorCallback + + *** DMA mode IO operation *** + ============================== + [..] + (+) Send an amount of data in non blocking mode (DMA) using HAL_I2S_Transmit_DMA() + (+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can + add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback + (+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_I2S_TxCpltCallback + (+) Receive an amount of data in non blocking mode (DMA) using HAL_I2S_Receive_DMA() + (+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can + add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback + (+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can + add his own code by customization of function pointer HAL_I2S_RxCpltCallback + (+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_I2S_ErrorCallback + (+) Pause the DMA Transfer using HAL_I2S_DMAPause() + (+) Resume the DMA Transfer using HAL_I2S_DMAResume() + (+) Stop the DMA Transfer using HAL_I2S_DMAStop() + + *** I2S HAL driver macros list *** + =================================== + [..] + Below the list of most used macros in I2S HAL driver. + + (+) __HAL_I2S_ENABLE: Enable the specified SPI peripheral (in I2S mode) + (+) __HAL_I2S_DISABLE: Disable the specified SPI peripheral (in I2S mode) + (+) __HAL_I2S_ENABLE_IT : Enable the specified I2S interrupts + (+) __HAL_I2S_DISABLE_IT : Disable the specified I2S interrupts + (+) __HAL_I2S_GET_FLAG: Check whether the specified I2S flag is set or not + + [..] + (@) You can refer to the I2S HAL driver header file for more useful macros + + *** I2S HAL driver macros list *** + =================================== + [..] + Callback registration: + + (#) The compilation flag USE_HAL_I2S_REGISTER_CALLBACKS when set to 1UL + allows the user to configure dynamically the driver callbacks. + Use Functions HAL_I2S_RegisterCallback() to register an interrupt callback. + + Function HAL_I2S_RegisterCallback() allows to register following callbacks: + (+) TxCpltCallback : I2S Tx Completed callback + (+) RxCpltCallback : I2S Rx Completed callback + (+) TxRxCpltCallback : I2S TxRx Completed callback + (+) TxHalfCpltCallback : I2S Tx Half Completed callback + (+) RxHalfCpltCallback : I2S Rx Half Completed callback + (+) TxRxHalfCpltCallback : I2S TxRx 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 + (+) TxRxCpltCallback : I2S TxRx Completed callback + (+) TxHalfCpltCallback : I2S Tx Half Completed callback + (+) RxHalfCpltCallback : I2S Rx Half Completed callback + (+) TxRxHalfCpltCallback : I2S TxRx 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 + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" + +#ifdef HAL_I2S_MODULE_ENABLED + +/** @addtogroup STM32H7xx_HAL_Driver + * @{ + */ + +/** @defgroup I2S I2S * @ingroup RTEMSBSPsARMSTM32H7 - * @brief I2S HAL module driver
- * @{
- */
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-#define I2S_TIMEOUT 0xFFFFUL
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/** @defgroup I2S_Private_Functions I2S Private Functions
+ * @brief I2S HAL module driver + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @defgroup I2S_Private_Define I2S Private Define * @ingroup RTEMSBSPsARMSTM32H7 - * @{
- */
-static void I2S_DMATxCplt(DMA_HandleTypeDef *hdma);
-static void I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
-static void I2S_DMARxCplt(DMA_HandleTypeDef *hdma);
-static void I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
-static void I2S_DMAError(DMA_HandleTypeDef *hdma);
-static void I2S_Transmit_16Bit_IT(I2S_HandleTypeDef *hi2s);
-static void I2S_Transmit_32Bit_IT(I2S_HandleTypeDef *hi2s);
-static void I2S_Receive_16Bit_IT(I2S_HandleTypeDef *hi2s);
-static void I2S_Receive_32Bit_IT(I2S_HandleTypeDef *hi2s);
-static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, FlagStatus State,
- uint32_t Timeout);
-/**
- * @}
- */
-
-/* Exported functions ---------------------------------------------------------*/
-
-/** @defgroup I2S_Exported_Functions I2S Exported Functions
+ * @{ + */ +#define I2S_TIMEOUT 0xFFFFUL +/** + * @} + */ + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @defgroup I2S_Private_Functions I2S Private Functions * @ingroup RTEMSBSPsARMSTM32H7 - * @{
- */
-
-/** @defgroup I2S_Exported_Functions_Group1 Initialization and de-initialization 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 I2SEx_DMATxRxCplt(DMA_HandleTypeDef *hdma); +static void I2SEx_DMATxRxHalfCplt(DMA_HandleTypeDef *hdma); +static void I2S_DMAError(DMA_HandleTypeDef *hdma); +static void I2S_Transmit_16Bit_IT(I2S_HandleTypeDef *hi2s); +static void I2S_Transmit_32Bit_IT(I2S_HandleTypeDef *hi2s); +static void I2S_Receive_16Bit_IT(I2S_HandleTypeDef *hi2s); +static void I2S_Receive_32Bit_IT(I2S_HandleTypeDef *hi2s); +static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, FlagStatus State, + uint32_t Tickstart, uint32_t Timeout); +/** + * @} + */ + +/* Exported functions ---------------------------------------------------------*/ + +/** @defgroup I2S_Exported_Functions I2S Exported Functions * @ingroup RTEMSBSPsARMSTM32H7 - * @brief Initialization and Configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Initialization and de-initialization functions #####
- ===============================================================================
- [..] This subsection provides a set of functions allowing to initialize and
- de-initialize the I2Sx peripheral in simplex mode:
-
- (+) User must Implement HAL_I2S_MspInit() function in which he configures
- all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
-
- (+) Call the function HAL_I2S_Init() to configure the selected device with
- the selected configuration:
- (++) Mode
- (++) Standard
- (++) Data Format
- (++) MCLK Output
- (++) Audio frequency
- (++) Polarity
-
- (+) Call the function HAL_I2S_DeInit() to restore the default configuration
- of the selected I2Sx peripheral.
- @endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the I2S according to the specified parameters
- * in the I2S_InitTypeDef and create the associated handle.
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_Init(I2S_HandleTypeDef *hi2s)
-{
- uint32_t i2sdiv;
- uint32_t i2sodd;
- uint32_t packetlength;
- uint32_t tmp;
- uint32_t i2sclk;
- uint32_t ispcm;
-
- /* Check the I2S handle allocation */
- if (hi2s == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the I2S parameters */
- assert_param(IS_I2S_ALL_INSTANCE(hi2s->Instance));
- assert_param(IS_I2S_MODE(hi2s->Init.Mode));
- assert_param(IS_I2S_STANDARD(hi2s->Init.Standard));
- assert_param(IS_I2S_DATA_FORMAT(hi2s->Init.DataFormat));
- assert_param(IS_I2S_MCLK_OUTPUT(hi2s->Init.MCLKOutput));
- assert_param(IS_I2S_AUDIO_FREQ(hi2s->Init.AudioFreq));
- assert_param(IS_I2S_CPOL(hi2s->Init.CPOL));
- assert_param(IS_I2S_FIRST_BIT(hi2s->Init.FirstBit));
- assert_param(IS_I2S_WS_INVERSION(hi2s->Init.WSInversion));
- assert_param(IS_I2S_DATA_24BIT_ALIGNMENT(hi2s->Init.Data24BitAlignment));
- assert_param(IS_I2S_MASTER_KEEP_IO_STATE(hi2s->Init.MasterKeepIOState));
-
- if (hi2s->State == HAL_I2S_STATE_RESET)
- {
- /* Allocate lock resource and initialize it */
- hi2s->Lock = HAL_UNLOCKED;
-
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- /* Init the I2S Callback settings */
- hi2s->TxCpltCallback = HAL_I2S_TxCpltCallback; /* Legacy weak TxCpltCallback */
- hi2s->RxCpltCallback = HAL_I2S_RxCpltCallback; /* Legacy weak RxCpltCallback */
- hi2s->TxHalfCpltCallback = HAL_I2S_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */
- hi2s->RxHalfCpltCallback = HAL_I2S_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */
- hi2s->ErrorCallback = HAL_I2S_ErrorCallback; /* Legacy weak ErrorCallback */
-
- if (hi2s->MspInitCallback == NULL)
- {
- hi2s->MspInitCallback = HAL_I2S_MspInit; /* Legacy weak MspInit */
- }
-
- /* Init the low level hardware : GPIO, CLOCK, NVIC... */
- hi2s->MspInitCallback(hi2s);
-#else
- /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
- HAL_I2S_MspInit(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
- }
-
- hi2s->State = HAL_I2S_STATE_BUSY;
-
- /* Disable the selected I2S peripheral */
- if ((hi2s->Instance->CR1 & SPI_CR1_SPE) == SPI_CR1_SPE)
- {
- /* Disable I2S peripheral */
- __HAL_I2S_DISABLE(hi2s);
- }
-
- /* Clear I2S configuration register */
- CLEAR_REG(hi2s->Instance->I2SCFGR);
-
- if (IS_I2S_MASTER(hi2s->Init.Mode))
- {
- /*------------------------- I2SDIV and ODD Calculation ---------------------*/
- /* If the requested audio frequency is not the default, compute the prescaler */
- if (hi2s->Init.AudioFreq != I2S_AUDIOFREQ_DEFAULT)
- {
- /* Check the frame length (For the Prescaler computing) ********************/
- if (hi2s->Init.DataFormat != I2S_DATAFORMAT_16B)
- {
- /* Channel length is 32 bits */
- packetlength = 2UL;
- }
- else
- {
- /* Channel length is 16 bits */
- packetlength = 1UL;
- }
-
- /* Check if PCM standard is used */
- if ((hi2s->Init.Standard == I2S_STANDARD_PCM_SHORT) ||
- (hi2s->Init.Standard == I2S_STANDARD_PCM_LONG))
- {
- ispcm = 1UL;
- }
- else
- {
- ispcm = 0UL;
- }
-
- /* Get the source clock value: based on System Clock value */
-#if defined (SPI_SPI6I2S_SUPPORT)
- if (hi2s->Instance == SPI6)
- {
- /* SPI6 source clock */
- i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI6);
- }
- else
- {
- /* SPI1,SPI2 and SPI3 share the same source clock */
- i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI123);
- }
-#else
- /* SPI1,SPI2 and SPI3 share the same source clock */
- i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI123);
-#endif
-
- /* Compute the Real divider depending on the MCLK output state, with a floating point */
- if (hi2s->Init.MCLKOutput == I2S_MCLKOUTPUT_ENABLE)
- {
- /* MCLK output is enabled */
- tmp = (uint32_t)((((i2sclk / (256UL >> ispcm)) * 10UL) / hi2s->Init.AudioFreq) + 5UL);
- }
- else
- {
- /* MCLK output is disabled */
- tmp = (uint32_t)((((i2sclk / ((32UL >> ispcm) * packetlength)) * 10UL) / hi2s->Init.AudioFreq) + 5UL);
- }
-
- /* Remove the flatting point */
- tmp = tmp / 10UL;
-
- /* Check the parity of the divider */
- i2sodd = (uint32_t)(tmp & (uint32_t)1UL);
-
- /* Compute the i2sdiv prescaler */
- i2sdiv = (uint32_t)((tmp - i2sodd) / 2UL);
- }
- else
- {
- /* Set the default values */
- i2sdiv = 2UL;
- i2sodd = 0UL;
- }
-
- /* Test if the obtain values are forbidden or out of range */
- if (((i2sodd == 1UL) && (i2sdiv == 1UL)) || (i2sdiv > 0xFFUL))
- {
- /* Set the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_PRESCALER);
- return HAL_ERROR;
- }
-
- /* Force i2smod to 1 just to be sure that (2xi2sdiv + i2sodd) is always higher than 0 */
- if (i2sdiv == 0UL)
- {
- i2sodd = 1UL;
- }
-
- MODIFY_REG(hi2s->Instance->I2SCFGR, (SPI_I2SCFGR_I2SDIV | SPI_I2SCFGR_ODD),
- ((i2sdiv << SPI_I2SCFGR_I2SDIV_Pos) | (i2sodd << SPI_I2SCFGR_ODD_Pos)));
- }
-
- /*-------------------------- I2Sx I2SCFGR Configuration --------------------*/
- /* Configure I2SMOD, I2SCFG, I2SSTD, PCMSYNC, DATLEN ,CHLEN ,CKPOL, WSINV, DATAFMT, I2SDIV, ODD and MCKOE bits bits */
- /* And configure the I2S with the I2S_InitStruct values */
- MODIFY_REG(hi2s->Instance->I2SCFGR, (SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SCFG | \
- SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC | \
- SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN | \
- SPI_I2SCFGR_CKPOL | SPI_I2SCFGR_WSINV | \
- SPI_I2SCFGR_DATFMT | SPI_I2SCFGR_MCKOE),
- (SPI_I2SCFGR_I2SMOD | hi2s->Init.Mode | \
- hi2s->Init.Standard | hi2s->Init.DataFormat | \
- hi2s->Init.CPOL | hi2s->Init.WSInversion | \
- hi2s->Init.Data24BitAlignment | hi2s->Init.MCLKOutput));
- /*Clear status register*/
- WRITE_REG(hi2s->Instance->IFCR, 0x0FF8);
-
- /*---------------------------- I2Sx CFG2 Configuration ----------------------*/
-
- /* Unlock the AF configuration to configure CFG2 register*/
- CLEAR_BIT(hi2s->Instance->CR1, SPI_CR1_IOLOCK);
-
- MODIFY_REG(hi2s->Instance->CFG2, SPI_CFG2_LSBFRST, hi2s->Init.FirstBit);
-
- /* Insure that AFCNTR is managed only by Master */
- if (IS_I2S_MASTER(hi2s->Init.Mode))
- {
- /* Alternate function GPIOs control */
- MODIFY_REG(hi2s->Instance->CFG2, SPI_CFG2_AFCNTR, (hi2s->Init.MasterKeepIOState));
- }
-
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->State = HAL_I2S_STATE_READY;
-
- return HAL_OK;
-}
-
-/**
- * @brief DeInitializes the I2S peripheral
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_DeInit(I2S_HandleTypeDef *hi2s)
-{
- /* Check the I2S handle allocation */
- if (hi2s == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_I2S_ALL_INSTANCE(hi2s->Instance));
-
- hi2s->State = HAL_I2S_STATE_BUSY;
-
- /* Disable the I2S Peripheral Clock */
- __HAL_I2S_DISABLE(hi2s);
-
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- if (hi2s->MspDeInitCallback == NULL)
- {
- hi2s->MspDeInitCallback = HAL_I2S_MspDeInit; /* Legacy weak MspDeInit */
- }
-
- /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
- hi2s->MspDeInitCallback(hi2s);
-#else
- /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
- HAL_I2S_MspDeInit(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
-
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->State = HAL_I2S_STATE_RESET;
-
- /* Release Lock */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
-}
-
-/**
- * @brief I2S MSP Init
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-__weak void HAL_I2S_MspInit(I2S_HandleTypeDef *hi2s)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hi2s);
-
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_I2S_MspInit could be implemented in the user file
- */
-}
-
-/**
- * @brief I2S MSP DeInit
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-__weak void HAL_I2S_MspDeInit(I2S_HandleTypeDef *hi2s)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hi2s);
-
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_I2S_MspDeInit could be implemented in the user file
- */
-}
-
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
-/**
- * @brief Register a User I2S Callback
- * To be used instead of the weak predefined callback
- * @param hi2s Pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for the specified I2S.
- * @param CallbackID ID of the callback to be registered
- * @param pCallback pointer to the Callback function
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_RegisterCallback(I2S_HandleTypeDef *hi2s, HAL_I2S_CallbackIDTypeDef CallbackID, pI2S_CallbackTypeDef pCallback)
-{
- HAL_StatusTypeDef status = HAL_OK;
-
- if (pCallback == NULL)
- {
- /* Update the error code */
- hi2s->ErrorCode |= HAL_I2S_ERROR_INVALID_CALLBACK;
-
- return HAL_ERROR;
- }
- /* Process locked */
- __HAL_LOCK(hi2s);
-
- if (HAL_I2S_STATE_READY == hi2s->State)
- {
- switch (CallbackID)
- {
- case HAL_I2S_TX_COMPLETE_CB_ID :
- hi2s->TxCpltCallback = pCallback;
- break;
-
- case HAL_I2S_RX_COMPLETE_CB_ID :
- hi2s->RxCpltCallback = pCallback;
- break;
-
- case HAL_I2S_TX_HALF_COMPLETE_CB_ID :
- hi2s->TxHalfCpltCallback = pCallback;
- break;
-
- case HAL_I2S_RX_HALF_COMPLETE_CB_ID :
- hi2s->RxHalfCpltCallback = pCallback;
- break;
-
- case HAL_I2S_ERROR_CB_ID :
- hi2s->ErrorCallback = pCallback;
- break;
-
- case HAL_I2S_MSPINIT_CB_ID :
- hi2s->MspInitCallback = pCallback;
- break;
-
- case HAL_I2S_MSPDEINIT_CB_ID :
- hi2s->MspDeInitCallback = pCallback;
- break;
-
- default :
- /* Update the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
-
- /* Return error status */
- status = HAL_ERROR;
- break;
- }
- }
- else if (HAL_I2S_STATE_RESET == hi2s->State)
- {
- switch (CallbackID)
- {
- case HAL_I2S_MSPINIT_CB_ID :
- hi2s->MspInitCallback = pCallback;
- break;
-
- case HAL_I2S_MSPDEINIT_CB_ID :
- hi2s->MspDeInitCallback = pCallback;
- break;
-
- default :
- /* Update the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
-
- /* Return error status */
- status = HAL_ERROR;
- break;
- }
- }
- else
- {
- /* Update the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
-
- /* Return error status */
- status = HAL_ERROR;
- }
-
- /* Release Lock */
- __HAL_UNLOCK(hi2s);
- return status;
-}
-
-/**
- * @brief Unregister an I2S Callback
- * I2S callback is redirected to the weak predefined callback
- * @param hi2s Pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for the specified I2S.
- * @param CallbackID ID of the callback to be unregistered
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_UnRegisterCallback(I2S_HandleTypeDef *hi2s, HAL_I2S_CallbackIDTypeDef CallbackID)
-{
- HAL_StatusTypeDef status = HAL_OK;
-
- /* Process locked */
- __HAL_LOCK(hi2s);
-
- if (HAL_I2S_STATE_READY == hi2s->State)
- {
- switch (CallbackID)
- {
- case HAL_I2S_TX_COMPLETE_CB_ID :
- hi2s->TxCpltCallback = HAL_I2S_TxCpltCallback; /* Legacy weak TxCpltCallback */
- break;
-
- case HAL_I2S_RX_COMPLETE_CB_ID :
- hi2s->RxCpltCallback = HAL_I2S_RxCpltCallback; /* Legacy weak RxCpltCallback */
- break;
-
- case HAL_I2S_TX_HALF_COMPLETE_CB_ID :
- hi2s->TxHalfCpltCallback = HAL_I2S_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */
- break;
-
- case HAL_I2S_RX_HALF_COMPLETE_CB_ID :
- hi2s->RxHalfCpltCallback = HAL_I2S_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */
- break;
-
- case HAL_I2S_ERROR_CB_ID :
- hi2s->ErrorCallback = HAL_I2S_ErrorCallback; /* Legacy weak ErrorCallback */
- break;
-
- case HAL_I2S_MSPINIT_CB_ID :
- hi2s->MspInitCallback = HAL_I2S_MspInit; /* Legacy weak MspInit */
- break;
-
- case HAL_I2S_MSPDEINIT_CB_ID :
- hi2s->MspDeInitCallback = HAL_I2S_MspDeInit; /* Legacy weak MspDeInit */
- break;
-
- default :
- /* Update the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
-
- /* Return error status */
- status = HAL_ERROR;
- break;
- }
- }
- else if (HAL_I2S_STATE_RESET == hi2s->State)
- {
- switch (CallbackID)
- {
- case HAL_I2S_MSPINIT_CB_ID :
- hi2s->MspInitCallback = HAL_I2S_MspInit; /* Legacy weak MspInit */
- break;
-
- case HAL_I2S_MSPDEINIT_CB_ID :
- hi2s->MspDeInitCallback = HAL_I2S_MspDeInit; /* Legacy weak MspDeInit */
- break;
-
- default :
- /* Update the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
-
- /* Return error status */
- status = HAL_ERROR;
- break;
- }
- }
- else
- {
- /* Update the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_INVALID_CALLBACK);
-
- /* Return error status */
- status = HAL_ERROR;
- }
-
- /* Release Lock */
- __HAL_UNLOCK(hi2s);
- return status;
-}
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
-/**
- * @}
- */
-
-/** @defgroup I2S_Exported_Functions_Group2 IO operation functions
+ * @{ + */ + +/** @defgroup I2S_Exported_Functions_Group1 Initialization and de-initialization functions * @ingroup RTEMSBSPsARMSTM32H7 - * @brief Data transfers functions
- *
-@verbatim
- ===============================================================================
- ##### IO operation functions #####
- ===============================================================================
- [..]
- This subsection provides a set of functions allowing to manage the I2S data
- transfers.
-
- (#) There are two modes of transfer:
- (++) Blocking mode : The communication is performed in the polling mode.
- The status of all data processing is returned by the same function
- after finishing transfer.
- (++) No-Blocking mode : The communication is performed using Interrupts
- or DMA. These functions return the status of the transfer startup.
- The end of the data processing will be indicated through the
- dedicated I2S IRQ when using Interrupt mode or the DMA IRQ when
- using DMA mode.
-
- (#) Blocking mode functions are :
- (++) HAL_I2S_Transmit()
- (++) HAL_I2S_Receive()
-
- (#) No-Blocking mode functions with Interrupt are :
- (++) HAL_I2S_Transmit_IT()
- (++) HAL_I2S_Receive_IT()
-
- (#) No-Blocking mode functions with DMA are :
- (++) HAL_I2S_Transmit_DMA()
- (++) HAL_I2S_Receive_DMA()
-
- (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
- (++) HAL_I2S_TxCpltCallback()
- (++) HAL_I2S_RxCpltCallback()
- (++) HAL_I2S_ErrorCallback()
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Transmit an amount of data in blocking mode
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pData a 16-bit pointer to data buffer.
- * @param Size number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @param Timeout Timeout duration
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_Transmit(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout)
-{
-#if defined (__GNUC__)
- __IO uint16_t *ptxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->TXDR));
-#endif /* __GNUC__ */
-
- if ((pData == NULL) || (Size == 0UL))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if (hi2s->State != HAL_I2S_STATE_READY)
- {
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-
- /* Set state and reset error code */
- hi2s->State = HAL_I2S_STATE_BUSY_TX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->pTxBuffPtr = pData;
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
-
- /* Initialize fields not used in handle to zero */
- hi2s->pRxBuffPtr = NULL;
- hi2s->RxXferSize = (uint16_t) 0UL;
- hi2s->RxXferCount = (uint16_t) 0UL;
-
- /* Check if the I2S is already enabled */
- if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Start the transfer */
- SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
-
-
- /* Wait until TXP flag is set */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXP, SET, Timeout) != HAL_OK)
- {
- /* Set the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT);
- hi2s->State = HAL_I2S_STATE_READY;
- __HAL_UNLOCK(hi2s);
- return HAL_ERROR;
- }
-
- while (hi2s->TxXferCount > 0UL)
- {
- if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B))
- {
- /* Transmit data in 32 Bit mode */
- hi2s->Instance->TXDR = *((uint32_t *)hi2s->pTxBuffPtr);
- hi2s->pTxBuffPtr += 2;
- hi2s->TxXferCount--;
- }
- else
- {
- /* Transmit data in 16 Bit mode */
-#if defined (__GNUC__)
- *ptxdr_16bits = *((uint16_t *)hi2s->pTxBuffPtr);
-#else
- *((__IO uint16_t *)&hi2s->Instance->TXDR) = *((uint16_t *)hi2s->pTxBuffPtr);
-#endif /* __GNUC__ */
-
- hi2s->pTxBuffPtr++;
- hi2s->TxXferCount--;
- }
-
- /* Wait until TXP flag is set */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXP, SET, Timeout) != HAL_OK)
- {
- /* Set the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT);
- hi2s->State = HAL_I2S_STATE_READY;
- __HAL_UNLOCK(hi2s);
- return HAL_ERROR;
- }
-
- /* Check if an underrun occurs */
- if (__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_UDR) == SET)
- {
- /* Clear underrun flag */
- __HAL_I2S_CLEAR_UDRFLAG(hi2s);
-
- /* Set the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR);
- }
- }
-
- hi2s->State = HAL_I2S_STATE_READY;
- __HAL_UNLOCK(hi2s);
- return HAL_OK;
-}
-
-/**
- * @brief Receive an amount of data in blocking mode
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pData a 16-bit pointer to data buffer.
- * @param Size number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @param Timeout Timeout duration
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @note In I2S Master Receiver mode, just after enabling the peripheral the clock will be generate
- * in continuous way and as the I2S is not disabled at the end of the I2S transaction.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_Receive(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout)
-{
-#if defined (__GNUC__)
- __IO uint16_t *prxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->RXDR));
-#endif /* __GNUC__ */
-
- if ((pData == NULL) || (Size == 0UL))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if (hi2s->State != HAL_I2S_STATE_READY)
- {
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-
- /* Set state and reset error code */
- hi2s->State = HAL_I2S_STATE_BUSY_RX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->pRxBuffPtr = pData;
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
-
- /* Initialize fields not used in handle to zero */
- hi2s->pTxBuffPtr = NULL;
- hi2s->TxXferSize = (uint16_t) 0UL;
- hi2s->TxXferCount = (uint16_t) 0UL;
-
- /* Check if the I2S is already enabled */
- if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Start the transfer */
- SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
-
- /* Receive data */
- while (hi2s->RxXferCount > 0UL)
- {
- /* Wait until RXNE flag is set */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_RXP, SET, Timeout) != HAL_OK)
- {
- /* Set the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT);
- hi2s->State = HAL_I2S_STATE_READY;
- __HAL_UNLOCK(hi2s);
- return HAL_ERROR;
- }
-
- if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B))
- {
- /* Receive data in 32 Bit mode */
- *((uint32_t *)hi2s->pRxBuffPtr) = hi2s->Instance->RXDR;
- hi2s->pRxBuffPtr += 2;
- hi2s->RxXferCount--;
- }
- else
- {
- /* Receive data in 16 Bit mode */
-#if defined (__GNUC__)
- *((uint16_t *)hi2s->pRxBuffPtr) = *prxdr_16bits;
-#else
- *((uint16_t *)hi2s->pRxBuffPtr) = *((__IO uint16_t *)&hi2s->Instance->RXDR);
-#endif /* __GNUC__ */
- hi2s->pRxBuffPtr++;
- hi2s->RxXferCount--;
- }
-
- /* Check if an overrun occurs */
- if (__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_OVR) == SET)
- {
- /* Clear overrun flag */
- __HAL_I2S_CLEAR_OVRFLAG(hi2s);
-
- /* Set the error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR);
- }
- }
-
- hi2s->State = HAL_I2S_STATE_READY;
- __HAL_UNLOCK(hi2s);
- return HAL_OK;
-}
-
-/**
- * @brief Transmit an amount of data in non-blocking mode with Interrupt
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pData a 16-bit pointer to data buffer.
- * @param Size number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_Transmit_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
-{
- if ((pData == NULL) || (Size == 0UL))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if (hi2s->State != HAL_I2S_STATE_READY)
- {
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-
- /* Set state and reset error code */
- hi2s->State = HAL_I2S_STATE_BUSY_TX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->pTxBuffPtr = (uint16_t *)pData;
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
-
- /* Initialize fields not used in handle to zero */
- hi2s->pRxBuffPtr = NULL;
- hi2s->RxXferSize = (uint16_t) 0UL;
- hi2s->RxXferCount = (uint16_t) 0UL;
-
- /* Set the function for IT treatment */
- if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B))
- {
- hi2s->TxISR = I2S_Transmit_32Bit_IT;
- }
- else
- {
- hi2s->TxISR = I2S_Transmit_16Bit_IT;
- }
-
- /* Check if the I2S is already enabled */
- if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Enable TXP and UDR interrupt */
- __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_UDR));
-
- /* Enable TIFRE interrupt if the mode is Slave */
- if (hi2s->Init.Mode == I2S_MODE_SLAVE_TX)
- {
- __HAL_I2S_ENABLE_IT(hi2s, I2S_IT_FRE);
- }
-
- /* Start the transfer */
- SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
-
- __HAL_UNLOCK(hi2s);
- return HAL_OK;
-}
-
-/**
- * @brief Receive an amount of data in non-blocking mode with Interrupt
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pData a 16-bit pointer to the Receive data buffer.
- * @param Size number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @note It is recommended to use DMA for the I2S receiver to avoid de-synchronization
- * between Master and Slave otherwise the I2S interrupt should be optimized.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_Receive_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
-{
- if ((pData == NULL) || (Size == 0UL))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if (hi2s->State != HAL_I2S_STATE_READY)
- {
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-
- /* Set state and reset error code */
- hi2s->State = HAL_I2S_STATE_BUSY_RX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->pRxBuffPtr = pData;
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
-
- /* Initialize fields not used in handle to zero */
- hi2s->pTxBuffPtr = NULL;
- hi2s->TxXferSize = (uint16_t) 0UL;
- hi2s->TxXferCount = (uint16_t) 0UL;
-
- /* Set the function for IT treatment */
- if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B))
- {
- hi2s->RxISR = I2S_Receive_32Bit_IT;
- }
- else
- {
- hi2s->RxISR = I2S_Receive_16Bit_IT;
- }
-
- /* Check if the I2S is already enabled */
- if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
- /* Enable RXNE and ERR interrupt */
- __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_OVR));
-
- /* Enable TIFRE interrupt if the mode is Slave */
- if (hi2s->Init.Mode == I2S_MODE_SLAVE_RX)
- {
- __HAL_I2S_ENABLE_IT(hi2s, I2S_IT_FRE);
- }
-
- /* Start the transfer */
- SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
-
- __HAL_UNLOCK(hi2s);
- return HAL_OK;
-}
-
-/**
- * @brief Transmit an amount of data in non-blocking mode with DMA
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pData a 16-bit pointer to the Transmit data buffer.
- * @param Size number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_Transmit_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
-{
- if ((pData == NULL) || (Size == 0UL))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if (hi2s->State != HAL_I2S_STATE_READY)
- {
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-
- /* Set state and reset error code */
- hi2s->State = HAL_I2S_STATE_BUSY_TX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->pTxBuffPtr = pData;
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
-
- /* Init field not used in handle to zero */
- hi2s->pRxBuffPtr = NULL;
- hi2s->RxXferSize = (uint16_t)0UL;
- hi2s->RxXferCount = (uint16_t)0UL;
-
- /* Set the I2S Tx DMA Half transfer complete callback */
- hi2s->hdmatx->XferHalfCpltCallback = I2S_DMATxHalfCplt;
-
- /* Set the I2S Tx DMA transfer complete callback */
- hi2s->hdmatx->XferCpltCallback = I2S_DMATxCplt;
-
- /* Set the DMA error callback */
- hi2s->hdmatx->XferErrorCallback = I2S_DMAError;
-
- /* Enable the Tx DMA Stream/Channel */
- if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmatx, (uint32_t)hi2s->pTxBuffPtr, (uint32_t)&hi2s->Instance->TXDR, hi2s->TxXferSize))
- {
- /* Update SPI error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
- hi2s->State = HAL_I2S_STATE_READY;
-
- __HAL_UNLOCK(hi2s);
- return HAL_ERROR;
- }
-
- /* Check if the I2S Tx request is already enabled */
- if (HAL_IS_BIT_CLR(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN))
- {
- /* Enable Tx DMA Request */
- SET_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN);
- }
-
- /* Check if the I2S is already enabled */
- if (HAL_IS_BIT_CLR(hi2s->Instance->CR1, SPI_CR1_SPE))
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Start the transfer */
- SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
-
- __HAL_UNLOCK(hi2s);
- return HAL_OK;
-}
-
-/**
- * @brief Receive an amount of data in non-blocking mode with DMA
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pData a 16-bit pointer to the Receive data buffer.
- * @param Size number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_Receive_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
-{
- if ((pData == NULL) || (Size == 0UL))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if (hi2s->State != HAL_I2S_STATE_READY)
- {
- __HAL_UNLOCK(hi2s);
- return HAL_BUSY;
- }
-
- /* Set state and reset error code */
- hi2s->State = HAL_I2S_STATE_BUSY_RX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
- hi2s->pRxBuffPtr = pData;
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
-
- /* Init field not used in handle to zero */
- hi2s->pTxBuffPtr = NULL;
- hi2s->TxXferSize = (uint16_t)0UL;
- hi2s->TxXferCount = (uint16_t)0UL;
-
-
- /* Set the I2S Rx DMA Half transfer complete callback */
- hi2s->hdmarx->XferHalfCpltCallback = I2S_DMARxHalfCplt;
-
- /* Set the I2S Rx DMA transfer complete callback */
- hi2s->hdmarx->XferCpltCallback = I2S_DMARxCplt;
-
- /* Set the DMA error callback */
- hi2s->hdmarx->XferErrorCallback = I2S_DMAError;
-
- /* Enable the Rx DMA Stream/Channel */
- if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&hi2s->Instance->RXDR, (uint32_t)hi2s->pRxBuffPtr, hi2s->RxXferSize))
- {
- /* Update SPI error code */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
- hi2s->State = HAL_I2S_STATE_READY;
-
- __HAL_UNLOCK(hi2s);
- return HAL_ERROR;
- }
-
- /* Check if the I2S Rx request is already enabled */
- if (HAL_IS_BIT_CLR(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN))
- {
- /* Enable Rx DMA Request */
- SET_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN);
- }
-
- /* Check if the I2S is already enabled */
- if (HAL_IS_BIT_CLR(hi2s->Instance->CR1, SPI_CR1_SPE))
- {
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- /* Start the transfer */
- SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
-
- __HAL_UNLOCK(hi2s);
- return HAL_OK;
-}
-
-/**
- * @brief Pauses the audio DMA Stream/Channel playing from the Media.
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_DMAPause(I2S_HandleTypeDef *hi2s)
-{
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- uint32_t tickstart;
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
-
- /* Check if the I2S peripheral is in master mode */
- if (IS_I2S_MASTER(hi2s->Init.Mode))
- {
- /* Check if there is a transfer on-going */
- if (HAL_IS_BIT_SET(hi2s->Instance->CR1, SPI_CR1_CSTART) == 0UL)
- {
- /* Set error code to no on going transfer */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_NO_OGT);
- hi2s->State = HAL_I2S_STATE_READY;
-
- __HAL_UNLOCK(hi2s);
- return HAL_ERROR;
- }
-
- SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSUSP);
-
- while (HAL_IS_BIT_SET(hi2s->Instance->CR1, SPI_CR1_CSTART) != 0UL)
- {
- if ((((HAL_GetTick() - tickstart) >= I2S_TIMEOUT) && (I2S_TIMEOUT != HAL_MAX_DELAY)) || (I2S_TIMEOUT == 0U))
- {
- /* Set the I2S State ready */
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT);
- hi2s->State = HAL_I2S_STATE_READY;
- return HAL_TIMEOUT;
- }
- }
-
- /* Disable I2S peripheral */
- __HAL_I2S_DISABLE(hi2s);
-
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- /* Set error code to not supported */
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_NOT_SUPPORTED);
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_ERROR;
- }
-}
-
-/**
- * @brief Resumes the audio DMA Stream/Channel playing from the Media.
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_DMAResume(I2S_HandleTypeDef *hi2s)
-{
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- if (hi2s->State != HAL_I2S_STATE_READY)
- {
- hi2s->State = HAL_I2S_STATE_READY;
-
- __HAL_UNLOCK(hi2s);
- return HAL_ERROR;
- }
-
- /* Set state and reset error code */
- hi2s->State = HAL_I2S_STATE_BUSY;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
-
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
-
- /* Start the transfer */
- SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
-}
-
-/**
- * @brief Stops the audio DMA Stream/Channel playing from the Media.
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2S_DMAStop(I2S_HandleTypeDef *hi2s)
-{
- HAL_StatusTypeDef errorcode = HAL_OK;
- /* The Lock is not implemented on this API to allow the user application
- to call the HAL SPI API under callbacks HAL_I2S_TxCpltCallback() or HAL_I2S_RxCpltCallback()
- when calling HAL_DMA_Abort() API the DMA TX or RX Transfer complete interrupt is generated
- and the correspond call back is executed HAL_I2S_TxCpltCallback() or HAL_I2S_RxCpltCallback()
- */
-
- /* Disable the I2S Tx/Rx DMA requests */
- CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN);
- CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN);
-
- /* Abort the I2S DMA tx Stream/Channel */
- if (hi2s->hdmatx != NULL)
- {
- /* Disable the I2S DMA tx Stream/Channel */
- if (HAL_OK != HAL_DMA_Abort(hi2s->hdmatx))
- {
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
- errorcode = HAL_ERROR;
- }
- }
-
- /* Abort the I2S DMA rx Stream/Channel */
- if (hi2s->hdmarx != NULL)
- {
- /* Disable the I2S DMA rx Stream/Channel */
- if (HAL_OK != HAL_DMA_Abort(hi2s->hdmarx))
- {
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
- errorcode = HAL_ERROR;
- }
- }
-
- /* Disable I2S peripheral */
- __HAL_I2S_DISABLE(hi2s);
-
- hi2s->State = HAL_I2S_STATE_READY;
-
- return errorcode;
-}
-
-/**
- * @brief This function handles I2S interrupt request.
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s)
-{
- uint32_t itsource = hi2s->Instance->IER;
- uint32_t itflag = hi2s->Instance->SR;
- uint32_t trigger = itsource & itflag;
-
- /* I2S in mode Receiver ------------------------------------------------*/
- if ((I2S_CHECK_FLAG(itflag, I2S_FLAG_OVR) == RESET) && HAL_IS_BIT_SET(trigger, I2S_FLAG_RXP))
- {
- hi2s->RxISR(hi2s);
- }
-
- /* I2S in mode Transmitter -----------------------------------------------*/
- if ((I2S_CHECK_FLAG(itflag, I2S_FLAG_UDR) == RESET) && HAL_IS_BIT_SET(trigger, I2S_FLAG_TXP))
- {
- hi2s->TxISR(hi2s);
- }
-
- /* I2S interrupt error ----------------------------------------------------*/
- if ((trigger & (I2S_FLAG_OVR| I2S_FLAG_UDR | I2S_FLAG_FRE)) != 0UL)
- {
- /* I2S Overrun error interrupt occurred ---------------------------------*/
- if (I2S_CHECK_FLAG(itflag, I2S_FLAG_OVR) != RESET)
- {
- /* Disable RXP and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR));
-
- /* Set the error code and execute error callback*/
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR);
- __HAL_I2S_CLEAR_OVRFLAG(hi2s);
- }
-
- /* I2S Underrun error interrupt occurred --------------------------------*/
- if (I2S_CHECK_FLAG(itflag, I2S_FLAG_UDR) != RESET)
- {
- /* Disable TXP and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR));
-
- /* Set the error code and execute error callback*/
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR);
- __HAL_I2S_CLEAR_UDRFLAG(hi2s);
- }
-
- /* I2S Frame error interrupt occurred -----------------------------------*/
- if (I2S_CHECK_FLAG(itflag, I2S_FLAG_FRE) != RESET)
- {
- /* Disable FRE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_FRE | I2S_IT_ERR));
-
- /* Set the error code and execute error callback*/
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_FRE);
- __HAL_I2S_CLEAR_FREFLAG(hi2s);
- }
-
- /* Set the I2S State ready */
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Call user error callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->ErrorCallback(hi2s);
-#else
- HAL_I2S_ErrorCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
- }
-}
-
-/**
- * @brief Tx Transfer Half completed callbacks
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-__weak void HAL_I2S_TxHalfCpltCallback(I2S_HandleTypeDef *hi2s)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hi2s);
-
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_I2S_TxHalfCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Tx Transfer completed callbacks
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-__weak void HAL_I2S_TxCpltCallback(I2S_HandleTypeDef *hi2s)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hi2s);
-
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_I2S_TxCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Rx Transfer half completed callbacks
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-__weak void HAL_I2S_RxHalfCpltCallback(I2S_HandleTypeDef *hi2s)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hi2s);
-
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_I2S_RxHalfCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Rx Transfer completed callbacks
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-__weak void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hi2s);
-
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_I2S_RxCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief I2S error callbacks
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-__weak void HAL_I2S_ErrorCallback(I2S_HandleTypeDef *hi2s)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hi2s);
-
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_I2S_ErrorCallback could be implemented in the user file
- */
-}
-
-/**
- * @}
- */
-
-/** @defgroup I2S_Exported_Functions_Group3 Peripheral State and Errors functions
+ * @brief Initialization and Configuration functions + * +@verbatim + =============================================================================== + ##### Initialization and de-initialization functions ##### + =============================================================================== + [..] This subsection provides a set of functions allowing to initialize and + de-initialize the I2Sx peripheral in simplex mode: + + (+) User must Implement HAL_I2S_MspInit() function in which he configures + all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ). + + (+) Call the function HAL_I2S_Init() to configure the selected device with + the selected configuration: + (++) Mode + (++) Standard + (++) Data Format + (++) MCLK Output + (++) Audio frequency + (++) Polarity + + (+) Call the function HAL_I2S_DeInit() to restore the default configuration + of the selected I2Sx peripheral. + @endverbatim + * @{ + */ + +/** + * @brief Initializes the I2S according to the specified parameters + * in the I2S_InitTypeDef and create the associated handle. + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_Init(I2S_HandleTypeDef *hi2s) +{ + uint32_t i2sdiv; + uint32_t i2sodd; + uint32_t packetlength; + uint32_t tmp; + uint32_t i2sclk; + uint32_t ispcm; + + /* Check the I2S handle allocation */ + if (hi2s == NULL) + { + return HAL_ERROR; + } + + /* Check the I2S parameters */ + assert_param(IS_I2S_ALL_INSTANCE(hi2s->Instance)); + assert_param(IS_I2S_MODE(hi2s->Init.Mode)); + assert_param(IS_I2S_STANDARD(hi2s->Init.Standard)); + assert_param(IS_I2S_DATA_FORMAT(hi2s->Init.DataFormat)); + assert_param(IS_I2S_MCLK_OUTPUT(hi2s->Init.MCLKOutput)); + assert_param(IS_I2S_AUDIO_FREQ(hi2s->Init.AudioFreq)); + assert_param(IS_I2S_CPOL(hi2s->Init.CPOL)); + assert_param(IS_I2S_FIRST_BIT(hi2s->Init.FirstBit)); + assert_param(IS_I2S_WS_INVERSION(hi2s->Init.WSInversion)); + assert_param(IS_I2S_DATA_24BIT_ALIGNMENT(hi2s->Init.Data24BitAlignment)); + assert_param(IS_I2S_MASTER_KEEP_IO_STATE(hi2s->Init.MasterKeepIOState)); + + if (hi2s->State == HAL_I2S_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hi2s->Lock = HAL_UNLOCKED; + +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + /* Init the I2S Callback settings */ + hi2s->TxCpltCallback = HAL_I2S_TxCpltCallback; /* Legacy weak TxCpltCallback */ + hi2s->RxCpltCallback = HAL_I2S_RxCpltCallback; /* Legacy weak RxCpltCallback */ + hi2s->TxRxCpltCallback = HAL_I2SEx_TxRxCpltCallback; /* Legacy weak TxRxCpltCallback */ + hi2s->TxHalfCpltCallback = HAL_I2S_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */ + hi2s->RxHalfCpltCallback = HAL_I2S_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */ + hi2s->TxRxHalfCpltCallback = HAL_I2SEx_TxRxHalfCpltCallback; /* Legacy weak TxRxHalfCpltCallback */ + hi2s->ErrorCallback = HAL_I2S_ErrorCallback; /* Legacy weak ErrorCallback */ + + if (hi2s->MspInitCallback == NULL) + { + hi2s->MspInitCallback = HAL_I2S_MspInit; /* Legacy weak MspInit */ + } + + /* Init the low level hardware : GPIO, CLOCK, NVIC... */ + hi2s->MspInitCallback(hi2s); +#else + /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */ + HAL_I2S_MspInit(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } + + hi2s->State = HAL_I2S_STATE_BUSY; + + /* Disable the selected I2S peripheral */ + if ((hi2s->Instance->CR1 & SPI_CR1_SPE) == SPI_CR1_SPE) + { + /* Disable I2S peripheral */ + __HAL_I2S_DISABLE(hi2s); + } + + /* Clear I2S configuration register */ + CLEAR_REG(hi2s->Instance->I2SCFGR); + + if (IS_I2S_MASTER(hi2s->Init.Mode)) + { + /*------------------------- I2SDIV and ODD Calculation ---------------------*/ + /* If the requested audio frequency is not the default, compute the prescaler */ + if (hi2s->Init.AudioFreq != I2S_AUDIOFREQ_DEFAULT) + { + /* Check the frame length (For the Prescaler computing) ********************/ + if (hi2s->Init.DataFormat != I2S_DATAFORMAT_16B) + { + /* Channel length is 32 bits */ + packetlength = 2UL; + } + else + { + /* Channel length is 16 bits */ + packetlength = 1UL; + } + + /* Check if PCM standard is used */ + if ((hi2s->Init.Standard == I2S_STANDARD_PCM_SHORT) || + (hi2s->Init.Standard == I2S_STANDARD_PCM_LONG)) + { + ispcm = 1UL; + } + else + { + ispcm = 0UL; + } + + /* Get the source clock value: based on System Clock value */ +#if defined (SPI_SPI6I2S_SUPPORT) + if (hi2s->Instance == SPI6) + { + /* SPI6 source clock */ + i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI6); + } + else + { + /* SPI1,SPI2 and SPI3 share the same source clock */ + i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI123); + } +#else + /* SPI1,SPI2 and SPI3 share the same source clock */ + i2sclk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SPI123); +#endif /* SPI_SPI6I2S_SUPPORT */ + + /* Compute the Real divider depending on the MCLK output state, with a floating point */ + if (hi2s->Init.MCLKOutput == I2S_MCLKOUTPUT_ENABLE) + { + /* MCLK output is enabled */ + tmp = (uint32_t)((((i2sclk / (256UL >> ispcm)) * 10UL) / hi2s->Init.AudioFreq) + 5UL); + } + else + { + /* MCLK output is disabled */ + tmp = (uint32_t)((((i2sclk / ((32UL >> ispcm) * packetlength)) * 10UL) / hi2s->Init.AudioFreq) + 5UL); + } + + /* Remove the flatting point */ + tmp = tmp / 10UL; + + /* Check the parity of the divider */ + i2sodd = (uint32_t)(tmp & (uint32_t)1UL); + + /* Compute the i2sdiv prescaler */ + i2sdiv = (uint32_t)((tmp - i2sodd) / 2UL); + } + else + { + /* Set the default values */ + i2sdiv = 2UL; + i2sodd = 0UL; + } + + /* Test if the obtain values are forbidden or out of range */ + if (((i2sodd == 1UL) && (i2sdiv == 1UL)) || (i2sdiv > 0xFFUL)) + { + /* Set the error code */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_PRESCALER); + return HAL_ERROR; + } + + /* Force i2smod to 1 just to be sure that (2xi2sdiv + i2sodd) is always higher than 0 */ + if (i2sdiv == 0UL) + { + i2sodd = 1UL; + } + + MODIFY_REG(hi2s->Instance->I2SCFGR, (SPI_I2SCFGR_I2SDIV | SPI_I2SCFGR_ODD), + ((i2sdiv << SPI_I2SCFGR_I2SDIV_Pos) | (i2sodd << SPI_I2SCFGR_ODD_Pos))); + } + + /*-------------------------- I2Sx I2SCFGR Configuration --------------------*/ + /* Configure I2SMOD, I2SCFG, I2SSTD, PCMSYNC, DATLEN ,CHLEN ,CKPOL, WSINV, DATAFMT, I2SDIV, ODD and MCKOE bits bits */ + /* And configure the I2S with the I2S_InitStruct values */ + MODIFY_REG(hi2s->Instance->I2SCFGR, (SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SCFG | \ + SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC | \ + SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN | \ + SPI_I2SCFGR_CKPOL | SPI_I2SCFGR_WSINV | \ + SPI_I2SCFGR_DATFMT | SPI_I2SCFGR_MCKOE), + (SPI_I2SCFGR_I2SMOD | hi2s->Init.Mode | \ + hi2s->Init.Standard | hi2s->Init.DataFormat | \ + hi2s->Init.CPOL | hi2s->Init.WSInversion | \ + hi2s->Init.Data24BitAlignment | hi2s->Init.MCLKOutput)); + /*Clear status register*/ + WRITE_REG(hi2s->Instance->IFCR, 0x0FF8); + + /*---------------------------- I2Sx CFG2 Configuration ----------------------*/ + + /* Unlock the AF configuration to configure CFG2 register*/ + CLEAR_BIT(hi2s->Instance->CR1, SPI_CR1_IOLOCK); + + MODIFY_REG(hi2s->Instance->CFG2, SPI_CFG2_LSBFRST, hi2s->Init.FirstBit); + + /* Insure that AFCNTR is managed only by Master */ + if (IS_I2S_MASTER(hi2s->Init.Mode)) + { + /* Alternate function GPIOs control */ + MODIFY_REG(hi2s->Instance->CFG2, SPI_CFG2_AFCNTR, (hi2s->Init.MasterKeepIOState)); + } + + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->State = HAL_I2S_STATE_READY; + + return HAL_OK; +} + +/** + * @brief DeInitializes the I2S peripheral + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_DeInit(I2S_HandleTypeDef *hi2s) +{ + /* Check the I2S handle allocation */ + if (hi2s == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + assert_param(IS_I2S_ALL_INSTANCE(hi2s->Instance)); + + hi2s->State = HAL_I2S_STATE_BUSY; + + /* Disable the I2S Peripheral Clock */ + __HAL_I2S_DISABLE(hi2s); + +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + if (hi2s->MspDeInitCallback == NULL) + { + hi2s->MspDeInitCallback = HAL_I2S_MspDeInit; /* Legacy weak MspDeInit */ + } + + /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */ + hi2s->MspDeInitCallback(hi2s); +#else + /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */ + HAL_I2S_MspDeInit(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->State = HAL_I2S_STATE_RESET; + + /* Release Lock */ + __HAL_UNLOCK(hi2s); + + return HAL_OK; +} + +/** + * @brief I2S MSP Init + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +__weak void HAL_I2S_MspInit(I2S_HandleTypeDef *hi2s) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hi2s); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_I2S_MspInit could be implemented in the user file + */ +} + +/** + * @brief I2S MSP DeInit + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +__weak void HAL_I2S_MspDeInit(I2S_HandleTypeDef *hi2s) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hi2s); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_I2S_MspDeInit could be implemented in the user file + */ +} + +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) +/** + * @brief Register a User I2S Callback + * To be used instead of the weak predefined callback + * @param hi2s Pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for the specified I2S. + * @param CallbackID ID of the callback to be registered + * @param pCallback pointer to the Callback function + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_RegisterCallback(I2S_HandleTypeDef *hi2s, HAL_I2S_CallbackIDTypeDef CallbackID, + pI2S_CallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + /* Update the error code */ + hi2s->ErrorCode |= HAL_I2S_ERROR_INVALID_CALLBACK; + + return HAL_ERROR; + } + /* Process locked */ + __HAL_LOCK(hi2s); + + if (HAL_I2S_STATE_READY == hi2s->State) + { + switch (CallbackID) + { + case HAL_I2S_TX_COMPLETE_CB_ID : + hi2s->TxCpltCallback = pCallback; + break; + + case HAL_I2S_RX_COMPLETE_CB_ID : + hi2s->RxCpltCallback = pCallback; + break; + + case HAL_I2S_TX_RX_COMPLETE_CB_ID : + hi2s->TxRxCpltCallback = 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_TX_RX_HALF_COMPLETE_CB_ID : + hi2s->TxRxHalfCpltCallback = 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_RX_COMPLETE_CB_ID : + hi2s->TxRxCpltCallback = HAL_I2SEx_TxRxCpltCallback; /* Legacy weak TxRxCpltCallback */ + 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_TX_RX_HALF_COMPLETE_CB_ID : + hi2s->TxRxHalfCpltCallback = HAL_I2SEx_TxRxHalfCpltCallback; /* Legacy weak TxRxHalfCpltCallback */ + 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 * @ingroup RTEMSBSPsARMSTM32H7 - * @brief Peripheral State functions
- *
-@verbatim
- ===============================================================================
- ##### Peripheral State and Errors functions #####
- ===============================================================================
- [..]
- This subsection permits to get in run-time the status of the peripheral
- and the data flow.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Return the I2S state
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval HAL state
- */
-HAL_I2S_StateTypeDef HAL_I2S_GetState(I2S_HandleTypeDef *hi2s)
-{
- return hi2s->State;
-}
-
-/**
- * @brief Return the I2S error code
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval I2S Error Code
- */
-uint32_t HAL_I2S_GetError(I2S_HandleTypeDef *hi2s)
-{
- return hi2s->ErrorCode;
-}
-/**
- * @}
- */
-
-
-/**
- * @brief DMA I2S transmit process complete callback
- * @param hdma pointer to a DMA_HandleTypeDef structure that contains
- * the configuration information for the specified DMA module.
- * @retval None
- */
-static void I2S_DMATxCplt(DMA_HandleTypeDef *hdma)
-{
- I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
-
- /* if DMA is configured in DMA_NORMAL Mode */
- if (hdma->Init.Mode == DMA_NORMAL)
- {
- /* Disable Tx DMA Request */
- CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN);
-
- hi2s->TxXferCount = (uint16_t) 0UL;
- hi2s->State = HAL_I2S_STATE_READY;
- }
- /* Call user Tx complete callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->TxCpltCallback(hi2s);
-#else
- HAL_I2S_TxCpltCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
-}
-
-/**
- * @brief DMA I2S transmit process half complete callback
- * @param hdma pointer to a DMA_HandleTypeDef structure that contains
- * the configuration information for the specified DMA module.
- * @retval None
- */
-static void I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
-{
- I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
-
- /* Call user Tx half complete callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->TxHalfCpltCallback(hi2s);
-#else
- HAL_I2S_TxHalfCpltCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
-}
-
-/**
- * @brief DMA I2S receive process complete callback
- * @param hdma pointer to a DMA_HandleTypeDef structure that contains
- * the configuration information for the specified DMA module.
- * @retval None
- */
-static void I2S_DMARxCplt(DMA_HandleTypeDef *hdma)
-{
- I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
-
- /* if DMA is configured in DMA_NORMAL Mode */
- if (hdma->Init.Mode == DMA_NORMAL)
- {
- /* Disable Rx DMA Request */
- CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN);
- hi2s->RxXferCount = (uint16_t)0UL;
- hi2s->State = HAL_I2S_STATE_READY;
- }
- /* Call user Rx complete callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->RxCpltCallback(hi2s);
-#else
- HAL_I2S_RxCpltCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
-}
-
-/**
- * @brief DMA I2S receive process half complete callback
- * @param hdma pointer to a DMA_HandleTypeDef structure that contains
- * the configuration information for the specified DMA module.
- * @retval None
- */
-static void I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
-{
- I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
-
- /* Call user Rx half complete callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->RxHalfCpltCallback(hi2s);
-#else
- HAL_I2S_RxHalfCpltCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
-}
-
-/**
- * @brief DMA I2S communication error callback
- * @param hdma pointer to a DMA_HandleTypeDef structure that contains
- * the configuration information for the specified DMA module.
- * @retval None
- */
-static void I2S_DMAError(DMA_HandleTypeDef *hdma)
-{
- I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; /* Derogation MISRAC2012-Rule-11.5 */
-
- /* Disable Rx and Tx DMA Request */
- CLEAR_BIT(hi2s->Instance->CFG1, (SPI_CFG1_RXDMAEN | SPI_CFG1_TXDMAEN));
- hi2s->TxXferCount = (uint16_t) 0UL;
- hi2s->RxXferCount = (uint16_t) 0UL;
-
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Set the error code and execute error callback*/
- SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA);
- /* Call user error callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->ErrorCallback(hi2s);
-#else
- HAL_I2S_ErrorCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
-}
-
-/**
- * @brief Manage the transmission 16-bit in Interrupt context
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-static void I2S_Transmit_16Bit_IT(I2S_HandleTypeDef *hi2s)
-{
- /* Transmit data */
-#if defined (__GNUC__)
- __IO uint16_t *ptxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->TXDR));
-
- *ptxdr_16bits = *((uint16_t *)hi2s->pTxBuffPtr);
-#else
- *((__IO uint16_t *)&hi2s->Instance->TXDR) = *((uint16_t *)hi2s->pTxBuffPtr);
-#endif /* __GNUC__ */
- hi2s->pTxBuffPtr++;
- hi2s->TxXferCount--;
-
- if (hi2s->TxXferCount == 0UL)
- {
- /* Disable TXE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR));
-
- hi2s->State = HAL_I2S_STATE_READY;
- /* Call user Tx complete callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->TxCpltCallback(hi2s);
-#else
- HAL_I2S_TxCpltCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
- }
-}
-
-/**
- * @brief Manage the transmission 32-bit in Interrupt context
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-static void I2S_Transmit_32Bit_IT(I2S_HandleTypeDef *hi2s)
-{
- /* Transmit data */
- hi2s->Instance->TXDR = *((uint32_t *)hi2s->pTxBuffPtr);
- hi2s->pTxBuffPtr += 2;
- hi2s->TxXferCount--;
-
- if (hi2s->TxXferCount == 0UL)
- {
- /* Disable TXE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR));
-
- hi2s->State = HAL_I2S_STATE_READY;
- /* Call user Tx complete callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->TxCpltCallback(hi2s);
-#else
- HAL_I2S_TxCpltCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
- }
-}
-
-/**
- * @brief Manage the reception 16-bit in Interrupt context
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-static void I2S_Receive_16Bit_IT(I2S_HandleTypeDef *hi2s)
-{
- /* Receive data */
-#if defined (__GNUC__)
- __IO uint16_t *prxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->RXDR));
-
- *((uint16_t *)hi2s->pRxBuffPtr) = *prxdr_16bits;
-#else
- *((uint16_t *)hi2s->pRxBuffPtr) = *((__IO uint16_t *)&hi2s->Instance->RXDR);
-#endif /* __GNUC__ */
- hi2s->pRxBuffPtr++;
- hi2s->RxXferCount--;
-
- if (hi2s->RxXferCount == 0UL)
- {
- /* Disable RXNE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR));
-
- hi2s->State = HAL_I2S_STATE_READY;
- /* Call user Rx complete callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->RxCpltCallback(hi2s);
-#else
- HAL_I2S_RxCpltCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
- }
-}
-
-/**
- * @brief Manage the reception 32-bit in Interrupt context
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval None
- */
-static void I2S_Receive_32Bit_IT(I2S_HandleTypeDef *hi2s)
-{
- /* Receive data */
- *((uint32_t *)hi2s->pRxBuffPtr) = hi2s->Instance->RXDR;
- hi2s->pRxBuffPtr += 2;
- hi2s->RxXferCount--;
-
- if (hi2s->RxXferCount == 0UL)
- {
- /* Disable RXNE and ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR));
-
- hi2s->State = HAL_I2S_STATE_READY;
- /* Call user Rx complete callback */
-#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL)
- hi2s->RxCpltCallback(hi2s);
-#else
- HAL_I2S_RxCpltCallback(hi2s);
-#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */
- }
-}
-
-/**
- * @brief This function handles I2S Communication Timeout.
- * @param hi2s pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param Flag Flag checked
- * @param State Value of the flag expected
- * @param Timeout Duration of the timeout
- * @retval HAL status
- */
-static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, FlagStatus State, uint32_t Timeout)
-{
- uint32_t tickstart;
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait until flag is set to status*/
- while (((__HAL_I2S_GET_FLAG(hi2s, Flag)) ? SET : RESET) != State)
- {
- if (Timeout != HAL_MAX_DELAY)
- {
- if (((HAL_GetTick() - tickstart) >= Timeout) || (Timeout == 0UL))
- {
- /* Set the I2S State ready */
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_TIMEOUT;
- }
- }
- }
- return HAL_OK;
-}
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-#endif /* HAL_I2S_MODULE_ENABLED */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+ * @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() + (++) HAL_I2SEx_TransmitReceive() + + (#) No-Blocking mode functions with Interrupt are : + (++) HAL_I2S_Transmit_IT() + (++) HAL_I2S_Receive_IT() + (++) HAL_I2SEx_TransmitReceive_IT() + + (#) No-Blocking mode functions with DMA are : + (++) HAL_I2S_Transmit_DMA() + (++) HAL_I2S_Receive_DMA() + (++) HAL_I2SEx_TransmitReceive_DMA() + + (#) A set of Transfer Complete Callbacks are provided in non Blocking mode: + (++) HAL_I2S_TxCpltCallback() + (++) HAL_I2S_RxCpltCallback() + (++) HAL_I2SEx_TxRxCpltCallback() + (++) 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, const uint16_t *pData, uint16_t Size, uint32_t Timeout) +{ +#if defined (__GNUC__) + __IO uint16_t *ptxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->TXDR)); +#endif /* __GNUC__ */ + uint32_t tickstart; + + if ((pData == NULL) || (Size == 0UL)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* Set state and reset error code */ + hi2s->State = HAL_I2S_STATE_BUSY_TX; + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->pTxBuffPtr = (const uint16_t *)pData; + hi2s->TxXferSize = Size; + hi2s->TxXferCount = Size; + + /* Initialize fields not used in handle to zero */ + hi2s->pRxBuffPtr = NULL; + hi2s->RxXferSize = (uint16_t) 0UL; + hi2s->RxXferCount = (uint16_t) 0UL; + + /* Check if the I2S is already enabled */ + if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + + /* Wait until TXP flag is set */ + if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXP, SET, tickstart, 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_TIMEOUT; + } + + while (hi2s->TxXferCount > 0UL) + { + if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B)) + { + /* Transmit data in 32 Bit mode */ + hi2s->Instance->TXDR = *((const uint32_t *)hi2s->pTxBuffPtr); + hi2s->pTxBuffPtr += 2; + hi2s->TxXferCount--; + } + else + { + /* Transmit data in 16 Bit mode */ +#if defined (__GNUC__) + *ptxdr_16bits = *((const uint16_t *)hi2s->pTxBuffPtr); +#else + *((__IO uint16_t *)&hi2s->Instance->TXDR) = *((const uint16_t *)hi2s->pTxBuffPtr); +#endif /* __GNUC__ */ + + hi2s->pTxBuffPtr++; + hi2s->TxXferCount--; + } + + /* Wait until TXP flag is set */ + if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXP, SET, tickstart, 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_TIMEOUT; + } + + /* Check if an underrun occurs */ + if (__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_UDR) == SET) + { + /* Clear underrun flag */ + __HAL_I2S_CLEAR_UDRFLAG(hi2s); + + /* Set the error code */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR); + } + } + + hi2s->State = HAL_I2S_STATE_READY; + __HAL_UNLOCK(hi2s); + return HAL_OK; +} + +/** + * @brief Receive an amount of data in blocking mode + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @param pData a 16-bit pointer to data buffer. + * @param Size number of data sample to be sent: + * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S + * configuration phase, the Size parameter means the number of 16-bit data length + * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected + * the Size parameter means the number of 16-bit data length. + * @param Timeout Timeout duration + * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization + * between Master and Slave(example: audio streaming). + * @note In I2S Master Receiver mode, just after enabling the peripheral the clock will be generate + * in continuous way and as the I2S is not disabled at the end of the I2S transaction. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_Receive(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout) +{ +#if defined (__GNUC__) + __IO uint16_t *prxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->RXDR)); +#endif /* __GNUC__ */ + uint32_t tickstart; + + if ((pData == NULL) || (Size == 0UL)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* Set state and reset error code */ + hi2s->State = HAL_I2S_STATE_BUSY_RX; + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->pRxBuffPtr = pData; + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + + /* Initialize fields not used in handle to zero */ + hi2s->pTxBuffPtr = NULL; + hi2s->TxXferSize = (uint16_t) 0UL; + hi2s->TxXferCount = (uint16_t) 0UL; + + /* Check if the I2S is already enabled */ + if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + /* Receive data */ + while (hi2s->RxXferCount > 0UL) + { + /* Wait until RXP flag is set */ + if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_RXP, SET, tickstart, 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_TIMEOUT; + } + + if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B)) + { + /* Receive data in 32 Bit mode */ + *((uint32_t *)hi2s->pRxBuffPtr) = hi2s->Instance->RXDR; + hi2s->pRxBuffPtr += 2; + hi2s->RxXferCount--; + } + else + { + /* Receive data in 16 Bit mode */ +#if defined (__GNUC__) + *((uint16_t *)hi2s->pRxBuffPtr) = *prxdr_16bits; +#else + *((uint16_t *)hi2s->pRxBuffPtr) = *((__IO uint16_t *)&hi2s->Instance->RXDR); +#endif /* __GNUC__ */ + hi2s->pRxBuffPtr++; + hi2s->RxXferCount--; + } + + /* Check if an overrun occurs */ + if (__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_OVR) == SET) + { + /* Clear overrun flag */ + __HAL_I2S_CLEAR_OVRFLAG(hi2s); + + /* Set the error code */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR); + } + } + + hi2s->State = HAL_I2S_STATE_READY; + __HAL_UNLOCK(hi2s); + return HAL_OK; +} + +/** + * @brief Full-Duplex Transmit/Receive data in blocking mode. + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @param pTxData a 16-bit pointer to the Transmit data buffer. + * @param pRxData 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. + * @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_I2SEx_TransmitReceive(I2S_HandleTypeDef *hi2s, const uint16_t *pTxData, uint16_t *pRxData, + uint16_t Size, uint32_t Timeout) +{ + uint32_t tmp_TxXferCount; + uint32_t tmp_RxXferCount; + uint32_t tickstart; + +#if defined (__GNUC__) + __IO uint16_t *ptxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->TXDR)); + __IO uint16_t *prxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->RXDR)); +#endif /* __GNUC__ */ + + if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + hi2s->TxXferSize = Size; + hi2s->TxXferCount = Size; + hi2s->pTxBuffPtr = (const uint16_t *)pTxData; + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + hi2s->pRxBuffPtr = pRxData; + + tmp_TxXferCount = hi2s->TxXferCount; + tmp_RxXferCount = hi2s->RxXferCount; + + /* Set state and reset error code */ + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->State = HAL_I2S_STATE_BUSY_TX_RX; + + /* Check if the I2S is already enabled */ + if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + while ((tmp_TxXferCount > 0UL) || (tmp_RxXferCount > 0UL)) + { + if ((__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_TXP) == SET) && (tmp_TxXferCount != 0UL)) + { + if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B)) + { + /* Transmit data in 32 Bit mode */ + hi2s->Instance->TXDR = *((const uint32_t *)hi2s->pTxBuffPtr); + hi2s->pTxBuffPtr += 2; + tmp_TxXferCount--; + } + else + { + /* Transmit data in 16 Bit mode */ +#if defined (__GNUC__) + *ptxdr_16bits = *((const uint16_t *)hi2s->pTxBuffPtr); +#else + *((__IO uint16_t *)&hi2s->Instance->TXDR) = *((const uint16_t *)hi2s->pTxBuffPtr); +#endif /* __GNUC__ */ + + hi2s->pTxBuffPtr++; + tmp_TxXferCount--; + } + + /* 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); + } + } + + if ((__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_RXP) == SET) && (tmp_RxXferCount != 0UL)) + { + if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B)) + { + /* Receive data in 32 Bit mode */ + *((uint32_t *)hi2s->pRxBuffPtr) = hi2s->Instance->RXDR; + hi2s->pRxBuffPtr += 2; + tmp_RxXferCount--; + } + else + { + /* Receive data in 16 Bit mode */ +#if defined (__GNUC__) + *((uint16_t *)hi2s->pRxBuffPtr) = *prxdr_16bits; +#else + *((uint16_t *)hi2s->pRxBuffPtr) = *((__IO uint16_t *)&hi2s->Instance->RXDR); +#endif /* __GNUC__ */ + hi2s->pRxBuffPtr++; + tmp_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); + } + } + + /* Timeout management */ + if ((((HAL_GetTick() - tickstart) >= Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U)) + { + /* Set the error code */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT); + hi2s->State = HAL_I2S_STATE_READY; + __HAL_UNLOCK(hi2s); + return HAL_TIMEOUT; + } + } + + 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, const uint16_t *pData, uint16_t Size) +{ + if ((pData == NULL) || (Size == 0UL)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + /* Set state and reset error code */ + hi2s->State = HAL_I2S_STATE_BUSY_TX; + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->pTxBuffPtr = (const uint16_t *)pData; + hi2s->TxXferSize = Size; + hi2s->TxXferCount = Size; + + /* Initialize fields not used in handle to zero */ + hi2s->pRxBuffPtr = NULL; + hi2s->RxXferSize = (uint16_t) 0UL; + hi2s->RxXferCount = (uint16_t) 0UL; + + /* Set the function for IT treatment */ + if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B)) + { + hi2s->TxISR = I2S_Transmit_32Bit_IT; + } + else + { + hi2s->TxISR = I2S_Transmit_16Bit_IT; + } + + /* Check if the I2S is already enabled */ + if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Enable TXP and UDR interrupt */ + __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_UDR)); + + /* Enable TIFRE interrupt if the mode is Slave */ + if (hi2s->Init.Mode == I2S_MODE_SLAVE_TX) + { + __HAL_I2S_ENABLE_IT(hi2s, I2S_IT_FRE); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + __HAL_UNLOCK(hi2s); + return HAL_OK; +} + +/** + * @brief Receive an amount of data in non-blocking mode with Interrupt + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @param pData a 16-bit pointer to the Receive data buffer. + * @param Size number of data sample to be sent: + * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S + * configuration phase, the Size parameter means the number of 16-bit data length + * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected + * the Size parameter means the number of 16-bit data length. + * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization + * between Master and Slave(example: audio streaming). + * @note It is recommended to use DMA for the I2S receiver to avoid de-synchronization + * between Master and Slave otherwise the I2S interrupt should be optimized. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_Receive_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size) +{ + if ((pData == NULL) || (Size == 0UL)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + /* Set state and reset error code */ + hi2s->State = HAL_I2S_STATE_BUSY_RX; + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->pRxBuffPtr = pData; + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + + /* Initialize fields not used in handle to zero */ + hi2s->pTxBuffPtr = NULL; + hi2s->TxXferSize = (uint16_t) 0UL; + hi2s->TxXferCount = (uint16_t) 0UL; + + /* Set the function for IT treatment */ + if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B)) + { + hi2s->RxISR = I2S_Receive_32Bit_IT; + } + else + { + hi2s->RxISR = I2S_Receive_16Bit_IT; + } + + /* Check if the I2S is already enabled */ + if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + /* Enable RXP and ERR interrupt */ + __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_OVR)); + + /* Enable TIFRE interrupt if the mode is Slave */ + if (hi2s->Init.Mode == I2S_MODE_SLAVE_RX) + { + __HAL_I2S_ENABLE_IT(hi2s, I2S_IT_FRE); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + __HAL_UNLOCK(hi2s); + return HAL_OK; +} + +/** + * @brief Full-Duplex Transmit/Receive data in non-blocking mode using Interrupt + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @param pTxData a 16-bit pointer to the Transmit data buffer. + * @param pRxData 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_I2SEx_TransmitReceive_IT(I2S_HandleTypeDef *hi2s, const uint16_t *pTxData, uint16_t *pRxData, + uint16_t Size) +{ + if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + hi2s->pTxBuffPtr = (const uint16_t *)pTxData; + hi2s->pRxBuffPtr = pRxData; + + hi2s->TxXferSize = Size; + hi2s->TxXferCount = Size; + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->State = HAL_I2S_STATE_BUSY_TX_RX; + + + /* Set the function for IT treatment */ + if ((hi2s->Init.DataFormat == I2S_DATAFORMAT_24B) || (hi2s->Init.DataFormat == I2S_DATAFORMAT_32B)) + { + hi2s->TxISR = I2S_Transmit_32Bit_IT; + hi2s->RxISR = I2S_Receive_32Bit_IT; + } + else + { + hi2s->TxISR = I2S_Transmit_16Bit_IT; + hi2s->RxISR = I2S_Receive_16Bit_IT; + } + + /* Check if the I2S is already enabled */ + if ((hi2s->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Enable TXP, RXP, DXP, UDR, OVR interrupts */ + __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_RXP | I2S_IT_DXP | I2S_IT_UDR | I2S_IT_OVR)); + + /* Enable TIFRE interrupt if the mode is Slave */ + if (hi2s->Init.Mode == I2S_MODE_SLAVE_FULLDUPLEX) + { + __HAL_I2S_ENABLE_IT(hi2s, I2S_IT_FRE); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + __HAL_UNLOCK(hi2s); + return HAL_OK; + +} + +/** + * @brief Transmit an amount of data in non-blocking mode with DMA + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @param pData a 16-bit pointer to the Transmit data buffer. + * @param Size number of data sample to be sent: + * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S + * configuration phase, the Size parameter means the number of 16-bit data length + * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected + * the Size parameter means the number of 16-bit data length. + * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization + * between Master and Slave(example: audio streaming). + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_Transmit_DMA(I2S_HandleTypeDef *hi2s, const uint16_t *pData, uint16_t Size) +{ + HAL_StatusTypeDef errorcode = HAL_OK; + + if ((pData == NULL) || (Size == 0UL)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + /* Set state and reset error code */ + hi2s->State = HAL_I2S_STATE_BUSY_TX; + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->pTxBuffPtr = (const uint16_t *)pData; + hi2s->TxXferSize = Size; + hi2s->TxXferCount = Size; + + /* Init field not used in handle to zero */ + hi2s->pRxBuffPtr = NULL; + hi2s->RxXferSize = (uint16_t)0UL; + hi2s->RxXferCount = (uint16_t)0UL; + + /* Set the I2S Tx DMA Half transfer complete callback */ + hi2s->hdmatx->XferHalfCpltCallback = I2S_DMATxHalfCplt; + + /* Set the I2S Tx DMA transfer complete callback */ + hi2s->hdmatx->XferCpltCallback = I2S_DMATxCplt; + + /* Set the DMA error callback */ + hi2s->hdmatx->XferErrorCallback = I2S_DMAError; + + /* Enable the Tx DMA Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmatx, (uint32_t)hi2s->pTxBuffPtr, (uint32_t)&hi2s->Instance->TXDR, + hi2s->TxXferCount)) + { + /* Update I2S error code */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA); + hi2s->State = HAL_I2S_STATE_READY; + + __HAL_UNLOCK(hi2s); + errorcode = HAL_ERROR; + return errorcode; + } + + /* Check if the I2S Tx request is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN)) + { + /* Enable Tx DMA Request */ + SET_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN); + } + + /* Check if the I2S is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CR1, SPI_CR1_SPE)) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + __HAL_UNLOCK(hi2s); + return errorcode; +} + +/** + * @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) +{ + HAL_StatusTypeDef errorcode = HAL_OK; + + if ((pData == NULL) || (Size == 0UL)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + /* Set state and reset error code */ + hi2s->State = HAL_I2S_STATE_BUSY_RX; + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->pRxBuffPtr = pData; + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + + /* Init field not used in handle to zero */ + hi2s->pTxBuffPtr = NULL; + hi2s->TxXferSize = (uint16_t)0UL; + hi2s->TxXferCount = (uint16_t)0UL; + + + /* Set the I2S Rx DMA Half transfer complete callback */ + hi2s->hdmarx->XferHalfCpltCallback = I2S_DMARxHalfCplt; + + /* Set the I2S Rx DMA transfer complete callback */ + hi2s->hdmarx->XferCpltCallback = I2S_DMARxCplt; + + /* Set the DMA error callback */ + hi2s->hdmarx->XferErrorCallback = I2S_DMAError; + + /* Enable the Rx DMA Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&hi2s->Instance->RXDR, (uint32_t)hi2s->pRxBuffPtr, + hi2s->RxXferCount)) + { + /* Update I2S error code */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA); + hi2s->State = HAL_I2S_STATE_READY; + errorcode = HAL_ERROR; + __HAL_UNLOCK(hi2s); + return errorcode; + } + + /* Check if the I2S Rx request is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN)) + { + /* Enable Rx DMA Request */ + SET_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN); + } + + /* Check if the I2S is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CR1, SPI_CR1_SPE)) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + __HAL_UNLOCK(hi2s); + return errorcode; +} + +/** + * @brief Full-Duplex Transmit/Receive data in non-blocking mode using DMA + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @param pTxData a 16-bit pointer to the Transmit data buffer. + * @param pRxData 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_I2SEx_TransmitReceive_DMA(I2S_HandleTypeDef *hi2s, const uint16_t *pTxData, uint16_t *pRxData, + uint16_t Size) +{ + HAL_StatusTypeDef errorcode = HAL_OK; + + + if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hi2s->State != HAL_I2S_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hi2s); + + hi2s->pTxBuffPtr = (const uint16_t *)pTxData; + hi2s->pRxBuffPtr = pRxData; + + hi2s->TxXferSize = Size; + hi2s->TxXferCount = Size; + hi2s->RxXferSize = Size; + hi2s->RxXferCount = Size; + + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + hi2s->State = HAL_I2S_STATE_BUSY_TX_RX; + + /* Reset the Tx/Rx DMA bits */ + CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN | SPI_CFG1_RXDMAEN); + + /* Set the I2S Rx DMA Half transfer complete callback */ + hi2s->hdmarx->XferHalfCpltCallback = I2SEx_DMATxRxHalfCplt; + + /* Set the I2S Rx DMA transfer complete callback */ + hi2s->hdmarx->XferCpltCallback = I2SEx_DMATxRxCplt; + + /* Set the I2S Rx DMA error callback */ + hi2s->hdmarx->XferErrorCallback = I2S_DMAError; + /* Enable the Tx DMA Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmatx, (uint32_t)hi2s->pTxBuffPtr, (uint32_t)&hi2s->Instance->TXDR, + hi2s->TxXferCount)) + { + /* Update I2S error code */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA); + hi2s->State = HAL_I2S_STATE_READY; + + __HAL_UNLOCK(hi2s); + errorcode = HAL_ERROR; + return errorcode; + } + + /* Check if the I2S Tx request is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN)) + { + /* Enable Tx DMA Request */ + SET_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN); + } + + /* Enable the Rx DMA Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&hi2s->Instance->RXDR, (uint32_t)hi2s->pRxBuffPtr, + hi2s->RxXferCount)) + { + /* Update I2S error code */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA); + hi2s->State = HAL_I2S_STATE_READY; + errorcode = HAL_ERROR; + __HAL_UNLOCK(hi2s); + return errorcode; + } + + /* Check if the I2S Rx request is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN)) + { + /* Enable Rx DMA Request */ + SET_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN); + } + + /* Check if the I2S is already enabled */ + if (HAL_IS_BIT_CLR(hi2s->Instance->CR1, SPI_CR1_SPE)) + { + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + } + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + __HAL_UNLOCK(hi2s); + return errorcode; +} + +/** + * @brief Pauses the audio DMA Stream/Channel playing from the Media. + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_DMAPause(I2S_HandleTypeDef *hi2s) +{ + /* Process Locked */ + __HAL_LOCK(hi2s); + + uint32_t tickstart; + + /* Get tick */ + tickstart = HAL_GetTick(); + + + /* Check if the I2S peripheral is in master mode */ + if (IS_I2S_MASTER(hi2s->Init.Mode)) + { + /* Check if there is a transfer on-going */ + if (HAL_IS_BIT_SET(hi2s->Instance->CR1, SPI_CR1_CSTART) == 0UL) + { + /* Set error code to no on going transfer */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_NO_OGT); + hi2s->State = HAL_I2S_STATE_READY; + + __HAL_UNLOCK(hi2s); + return HAL_ERROR; + } + + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSUSP); + + while (HAL_IS_BIT_SET(hi2s->Instance->CR1, SPI_CR1_CSTART) != 0UL) + { + if ((((HAL_GetTick() - tickstart) >= I2S_TIMEOUT) && (I2S_TIMEOUT != HAL_MAX_DELAY)) || (I2S_TIMEOUT == 0U)) + { + /* Set the I2S State ready */ + hi2s->State = HAL_I2S_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hi2s); + + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_TIMEOUT); + hi2s->State = HAL_I2S_STATE_READY; + return HAL_TIMEOUT; + } + } + + /* Disable I2S peripheral */ + __HAL_I2S_DISABLE(hi2s); + + hi2s->State = HAL_I2S_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hi2s); + + return HAL_OK; + } + else + { + /* Set error code to not supported */ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_NOT_SUPPORTED); + hi2s->State = HAL_I2S_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hi2s); + + return HAL_ERROR; + } +} + +/** + * @brief Resumes the audio DMA Stream/Channel playing from the Media. + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_DMAResume(I2S_HandleTypeDef *hi2s) +{ + /* Process Locked */ + __HAL_LOCK(hi2s); + + if (hi2s->State != HAL_I2S_STATE_READY) + { + hi2s->State = HAL_I2S_STATE_READY; + + __HAL_UNLOCK(hi2s); + return HAL_ERROR; + } + + /* Set state and reset error code */ + hi2s->State = HAL_I2S_STATE_BUSY; + hi2s->ErrorCode = HAL_I2S_ERROR_NONE; + + /* Enable I2S peripheral */ + __HAL_I2S_ENABLE(hi2s); + + /* Start the transfer */ + SET_BIT(hi2s->Instance->CR1, SPI_CR1_CSTART); + + /* Process Unlocked */ + __HAL_UNLOCK(hi2s); + + return HAL_OK; +} + +/** + * @brief Stops the audio DMA Stream/Channel playing from the Media. + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2S_DMAStop(I2S_HandleTypeDef *hi2s) +{ + HAL_StatusTypeDef errorcode = HAL_OK; + /* The Lock is not implemented on this API to allow the user application + to call the HAL I2S API under callbacks HAL_I2S_TxCpltCallback() or HAL_I2S_RxCpltCallback() + when calling HAL_DMA_Abort() API the DMA TX or RX Transfer complete interrupt is generated + and the correspond call back is executed HAL_I2S_TxCpltCallback() or HAL_I2S_RxCpltCallback() + */ + + /* Disable the I2S Tx/Rx DMA requests */ + CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN); + CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN); + + /* Abort the I2S DMA tx Stream/Channel */ + if (hi2s->hdmatx != NULL) + { + /* Disable the I2S DMA tx Stream/Channel */ + if (HAL_OK != HAL_DMA_Abort(hi2s->hdmatx)) + { + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA); + errorcode = HAL_ERROR; + } + } + + /* Abort the I2S DMA rx Stream/Channel */ + if (hi2s->hdmarx != NULL) + { + /* Disable the I2S DMA rx Stream/Channel */ + if (HAL_OK != HAL_DMA_Abort(hi2s->hdmarx)) + { + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA); + errorcode = HAL_ERROR; + } + } + + /* Disable I2S peripheral */ + __HAL_I2S_DISABLE(hi2s); + + hi2s->State = HAL_I2S_STATE_READY; + + return errorcode; +} + +/** + * @brief This function handles I2S interrupt request. + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s) +{ + uint32_t i2sier = hi2s->Instance->IER; + uint32_t i2ssr = hi2s->Instance->SR; + uint32_t trigger = i2sier & i2ssr; + + if (hi2s->State == HAL_I2S_STATE_BUSY_RX) + { + /* I2S in mode Receiver ------------------------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_RXP) && HAL_IS_BIT_CLR(trigger, I2S_FLAG_OVR)) + { + hi2s->RxISR(hi2s); + } + + /* I2S Overrun error interrupt occurred -------------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_OVR)) + { + /* Disable RXP and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR)); + + /* Clear Overrun flag */ + __HAL_I2S_CLEAR_OVRFLAG(hi2s); + + /* Set the I2S State ready */ + hi2s->State = HAL_I2S_STATE_READY; + + + /* Set the error code and execute error callback*/ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR); + /* Call user error callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->ErrorCallback(hi2s); +#else + HAL_I2S_ErrorCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } + } + + if (hi2s->State == HAL_I2S_STATE_BUSY_TX) + { + /* I2S in mode Transmitter -----------------------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_TXP) && HAL_IS_BIT_CLR(trigger, I2S_FLAG_UDR)) + { + hi2s->TxISR(hi2s); + } + + /* I2S Underrun error interrupt occurred --------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_UDR)) + { + /* Disable TXP and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR)); + + /* Clear Underrun flag */ + __HAL_I2S_CLEAR_UDRFLAG(hi2s); + + /* Set the I2S State ready */ + hi2s->State = HAL_I2S_STATE_READY; + + /* Set the error code and execute error callback*/ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR); + /* Call user error callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->ErrorCallback(hi2s); +#else + HAL_I2S_ErrorCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } + } + if (hi2s->State == HAL_I2S_STATE_BUSY_TX_RX) + { + /* I2S in mode Transmitter -----------------------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_DXP)) + { + hi2s->TxISR(hi2s); + hi2s->RxISR(hi2s); + } + /* I2S in mode Receiver ------------------------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_RXP) && HAL_IS_BIT_CLR(trigger, I2S_FLAG_DXP)) + { + hi2s->RxISR(hi2s); + } + /* I2S in mode Transmitter -----------------------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_TXP) && HAL_IS_BIT_CLR(trigger, I2S_FLAG_DXP)) + { + hi2s->TxISR(hi2s); + } + + /* I2S Underrun error interrupt occurred --------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_UDR)) + { + /* Disable TXP, RXP and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_RXP | I2S_IT_ERR)); + + /* Clear Underrun flag */ + __HAL_I2S_CLEAR_UDRFLAG(hi2s); + + /* Set the I2S State ready */ + hi2s->State = HAL_I2S_STATE_READY; + + /* Set the error code and execute error callback*/ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR); + /* Call user error callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->ErrorCallback(hi2s); +#else + HAL_I2S_ErrorCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } + + /* I2S Overrun error interrupt occurred -------------------------------------*/ + if (HAL_IS_BIT_SET(trigger, I2S_FLAG_OVR)) + { + /* Disable TXP, RXP and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_RXP | I2S_IT_ERR)); + + /* Clear Overrun flag */ + __HAL_I2S_CLEAR_OVRFLAG(hi2s); + + /* Set the I2S State ready */ + hi2s->State = HAL_I2S_STATE_READY; + + + /* Set the error code and execute error callback*/ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR); + + /* Call user error callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->ErrorCallback(hi2s); +#else + HAL_I2S_ErrorCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } + } +} + +/** + * @brief Tx Transfer Half completed callbacks + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +__weak void HAL_I2S_TxHalfCpltCallback(I2S_HandleTypeDef *hi2s) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hi2s); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_I2S_TxHalfCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Tx Transfer completed callbacks + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +__weak void HAL_I2S_TxCpltCallback(I2S_HandleTypeDef *hi2s) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hi2s); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_I2S_TxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Rx Transfer half completed callbacks + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +__weak void HAL_I2S_RxHalfCpltCallback(I2S_HandleTypeDef *hi2s) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hi2s); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_I2S_RxHalfCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Rx Transfer completed callbacks + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +__weak void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hi2s); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_I2S_RxCpltCallback could be implemented in the user file + */ +} + +/** + * @brief 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_I2SEx_TxRxHalfCpltCallback(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_I2SEx_TxRxCpltCallback(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 + * @ingroup RTEMSBSPsARMSTM32H7 + * @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(const 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(const I2S_HandleTypeDef *hi2s) +{ + return hi2s->ErrorCode; +} +/** + * @} + */ + +/** + * @} + */ + +/** @addtogroup 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) +{ + /* Derogation MISRAC2012-Rule-11.5 */ + I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* if DMA is configured in DMA_NORMAL Mode */ + if (hdma->Init.Mode == DMA_NORMAL) + { + /* Disable Tx DMA Request */ + CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN); + + hi2s->TxXferCount = (uint16_t) 0UL; + hi2s->State = HAL_I2S_STATE_READY; + } + /* Call user Tx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->TxCpltCallback(hi2s); +#else + HAL_I2S_TxCpltCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA I2S transmit process half complete callback + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma) +{ + /* Derogation MISRAC2012-Rule-11.5 */ + I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* Call user Tx half complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->TxHalfCpltCallback(hi2s); +#else + HAL_I2S_TxHalfCpltCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA I2S receive process complete callback + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void I2S_DMARxCplt(DMA_HandleTypeDef *hdma) +{ + /* Derogation MISRAC2012-Rule-11.5 */ + I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* if DMA is configured in DMA_NORMAL Mode */ + if (hdma->Init.Mode == DMA_NORMAL) + { + /* Disable Rx DMA Request */ + CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN); + hi2s->RxXferCount = (uint16_t)0UL; + hi2s->State = HAL_I2S_STATE_READY; + } + /* Call user Rx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->RxCpltCallback(hi2s); +#else + HAL_I2S_RxCpltCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA I2S receive process half complete callback + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma) +{ + /* Derogation MISRAC2012-Rule-11.5 */ + I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* Call user Rx half complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->RxHalfCpltCallback(hi2s); +#else + HAL_I2S_RxHalfCpltCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA I2S transmit 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 I2SEx_DMATxRxCplt(DMA_HandleTypeDef *hdma) +{ + I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* if DMA is configured in DMA_NORMAL Mode */ + if (hdma->Init.Mode == DMA_NORMAL) + { + /* Disable Tx DMA Request */ + CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_TXDMAEN); + hi2s->TxXferCount = (uint16_t) 0UL; + + /* Disable Rx DMA Request */ + CLEAR_BIT(hi2s->Instance->CFG1, SPI_CFG1_RXDMAEN); + hi2s->RxXferCount = (uint16_t)0UL; + + /* Updated HAL State */ + hi2s->State = HAL_I2S_STATE_READY; + } + + /* Call user TxRx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) + hi2s->TxRxCpltCallback(hi2s); +#else + HAL_I2SEx_TxRxCpltCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA I2S transmit 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 I2SEx_DMATxRxHalfCplt(DMA_HandleTypeDef *hdma) +{ + I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* Call user TxRx Half complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) + hi2s->TxRxHalfCpltCallback(hi2s); +#else + HAL_I2SEx_TxRxHalfCpltCallback(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) +{ + /* Derogation MISRAC2012-Rule-11.5 */ + I2S_HandleTypeDef *hi2s = (I2S_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + /* Disable Rx and Tx DMA Request */ + CLEAR_BIT(hi2s->Instance->CFG1, (SPI_CFG1_RXDMAEN | SPI_CFG1_TXDMAEN)); + hi2s->TxXferCount = (uint16_t) 0UL; + hi2s->RxXferCount = (uint16_t) 0UL; + + hi2s->State = HAL_I2S_STATE_READY; + + /* Set the error code and execute error callback*/ + SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_DMA); + /* Call user error callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->ErrorCallback(hi2s); +#else + HAL_I2S_ErrorCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ +} + +/** + * @brief Manage the transmission 16-bit in Interrupt context + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +static void I2S_Transmit_16Bit_IT(I2S_HandleTypeDef *hi2s) +{ + /* Transmit data */ +#if defined (__GNUC__) + __IO uint16_t *ptxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->TXDR)); + + *ptxdr_16bits = *((const uint16_t *)hi2s->pTxBuffPtr); +#else + *((__IO uint16_t *)&hi2s->Instance->TXDR) = *((const uint16_t *)hi2s->pTxBuffPtr); +#endif /* __GNUC__ */ + hi2s->pTxBuffPtr++; + hi2s->TxXferCount--; + + if (hi2s->TxXferCount == 0UL) + { + /* Disable TXP and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR)); + + if ((hi2s->Init.Mode == I2S_MODE_SLAVE_TX) || (hi2s->Init.Mode == I2S_MODE_MASTER_TX)) + { + hi2s->State = HAL_I2S_STATE_READY; + + /* Call user Tx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->TxCpltCallback(hi2s); +#else + HAL_I2S_TxCpltCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } + } +} + +/** + * @brief Manage the transmission 32-bit in Interrupt context + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +static void I2S_Transmit_32Bit_IT(I2S_HandleTypeDef *hi2s) +{ + /* Transmit data */ + hi2s->Instance->TXDR = *((const uint32_t *)hi2s->pTxBuffPtr); + hi2s->pTxBuffPtr += 2; + hi2s->TxXferCount--; + + if (hi2s->TxXferCount == 0UL) + { + /* Disable TXP and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_ERR)); + + if ((hi2s->Init.Mode == I2S_MODE_SLAVE_TX) || (hi2s->Init.Mode == I2S_MODE_MASTER_TX)) + { + hi2s->State = HAL_I2S_STATE_READY; + + /* Call user Tx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + hi2s->TxCpltCallback(hi2s); +#else + HAL_I2S_TxCpltCallback(hi2s); +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } + } +} + +/** + * @brief Manage the reception 16-bit in Interrupt context + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +static void I2S_Receive_16Bit_IT(I2S_HandleTypeDef *hi2s) +{ + /* Receive data */ +#if defined (__GNUC__) + __IO uint16_t *prxdr_16bits = (__IO uint16_t *)(&(hi2s->Instance->RXDR)); + + *((uint16_t *)hi2s->pRxBuffPtr) = *prxdr_16bits; +#else + *((uint16_t *)hi2s->pRxBuffPtr) = *((__IO uint16_t *)&hi2s->Instance->RXDR); +#endif /* __GNUC__ */ + hi2s->pRxBuffPtr++; + hi2s->RxXferCount--; + + if (hi2s->RxXferCount == 0UL) + { + if (IS_I2S_FULLDUPLEX(hi2s->Init.Mode)) + { + /* Disable TXP, RXP, DXP, ERR interrupts */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_RXP | I2S_IT_DXP | I2S_IT_ERR)); + } + else + { + /* Disable RXP and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR)); + } + + hi2s->State = HAL_I2S_STATE_READY; + /* Call user Rx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + if (IS_I2S_FULLDUPLEX(hi2s->Init.Mode)) + { + hi2s->TxRxCpltCallback(hi2s); + } + else + { + hi2s->RxCpltCallback(hi2s); + } +#else + if (IS_I2S_FULLDUPLEX(hi2s->Init.Mode)) + { + HAL_I2SEx_TxRxCpltCallback(hi2s); + } + else + { + HAL_I2S_RxCpltCallback(hi2s); + } +#endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ + } +} + +/** + * @brief Manage the reception 32-bit in Interrupt context + * @param hi2s pointer to a I2S_HandleTypeDef structure that contains + * the configuration information for I2S module + * @retval None + */ +static void I2S_Receive_32Bit_IT(I2S_HandleTypeDef *hi2s) +{ + /* Receive data */ + *((uint32_t *)hi2s->pRxBuffPtr) = hi2s->Instance->RXDR; + hi2s->pRxBuffPtr += 2; + hi2s->RxXferCount--; + + if (hi2s->RxXferCount == 0UL) + { + if (IS_I2S_FULLDUPLEX(hi2s->Init.Mode)) + { + /* Disable TXP, RXP, DXP, ERR interrupts */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXP | I2S_IT_RXP | I2S_IT_DXP | I2S_IT_ERR)); + } + else + { + /* Disable RXP and ERR interrupt */ + __HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXP | I2S_IT_ERR)); + } + + hi2s->State = HAL_I2S_STATE_READY; + /* Call user Rx complete callback */ +#if (USE_HAL_I2S_REGISTER_CALLBACKS == 1UL) + if (IS_I2S_FULLDUPLEX(hi2s->Init.Mode)) + { + hi2s->TxRxCpltCallback(hi2s); + } + else + { + hi2s->RxCpltCallback(hi2s); + } +#else + if (IS_I2S_FULLDUPLEX(hi2s->Init.Mode)) + { + HAL_I2SEx_TxRxCpltCallback(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 Tickstart Tick start value + * @param Timeout Duration of the timeout + * @retval HAL status + */ +static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, FlagStatus State, + uint32_t Tickstart, uint32_t Timeout) +{ + /* Wait until flag is set to status*/ + while (((__HAL_I2S_GET_FLAG(hi2s, Flag)) ? SET : RESET) != State) + { + if (Timeout != HAL_MAX_DELAY) + { + if (((HAL_GetTick() - Tickstart) >= Timeout) || (Timeout == 0UL)) + { + /* Set the I2S State ready */ + hi2s->State = HAL_I2S_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hi2s); + + return HAL_TIMEOUT; + } + } + } + return HAL_OK; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_I2S_MODULE_ENABLED */ + |