stm32f4xx_hal_i2s.c File Reference

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. More...

#include "stm32f4xx_hal.h"

Go to the source code of this file.

Functions
static void	I2S_DMATxCplt (DMA_HandleTypeDef *hdma)
	DMA I2S transmit process complete callback.
static void	I2S_DMATxHalfCplt (DMA_HandleTypeDef *hdma)
	DMA I2S transmit process half complete callback.
static void	I2S_DMARxCplt (DMA_HandleTypeDef *hdma)
	DMA I2S receive process complete callback.
static void	I2S_DMARxHalfCplt (DMA_HandleTypeDef *hdma)
	DMA I2S receive process half complete callback.
static void	I2S_DMAError (DMA_HandleTypeDef *hdma)
	DMA I2S communication error callback.
static void	I2S_Transmit_IT (I2S_HandleTypeDef *hi2s)
	Transmit an amount of data in non-blocking mode with Interrupt.
static void	I2S_Receive_IT (I2S_HandleTypeDef *hi2s)
	Receive an amount of data in non-blocking mode with Interrupt.
static void	I2S_IRQHandler (I2S_HandleTypeDef *hi2s)
	This function handles I2S interrupt request.
static HAL_StatusTypeDef	I2S_WaitFlagStateUntilTimeout (I2S_HandleTypeDef *hi2s, uint32_t Flag, uint32_t State, uint32_t Timeout)
	This function handles I2S Communication Timeout.
HAL_StatusTypeDef	HAL_I2S_Init (I2S_HandleTypeDef *hi2s)
	Initializes the I2S according to the specified parameters in the I2S_InitTypeDef and create the associated handle.
HAL_StatusTypeDef	HAL_I2S_DeInit (I2S_HandleTypeDef *hi2s)
	DeInitializes the I2S peripheral.
__weak void	HAL_I2S_MspInit (I2S_HandleTypeDef *hi2s)
	I2S MSP Init.
__weak void	HAL_I2S_MspDeInit (I2S_HandleTypeDef *hi2s)
	I2S MSP DeInit.
HAL_StatusTypeDef	HAL_I2S_Transmit (I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout)
	Transmit an amount of data in blocking mode.
HAL_StatusTypeDef	HAL_I2S_Receive (I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout)
	Receive an amount of data in blocking mode.
HAL_StatusTypeDef	HAL_I2S_Transmit_IT (I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
	Transmit an amount of data in non-blocking mode with Interrupt.
HAL_StatusTypeDef	HAL_I2S_Receive_IT (I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
	Receive an amount of data in non-blocking mode with Interrupt.
HAL_StatusTypeDef	HAL_I2S_Transmit_DMA (I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
	Transmit an amount of data in non-blocking mode with DMA.
HAL_StatusTypeDef	HAL_I2S_Receive_DMA (I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size)
	Receive an amount of data in non-blocking mode with DMA.
HAL_StatusTypeDef	HAL_I2S_DMAPause (I2S_HandleTypeDef *hi2s)
	Pauses the audio stream playing from the Media.
HAL_StatusTypeDef	HAL_I2S_DMAResume (I2S_HandleTypeDef *hi2s)
	Resumes the audio stream playing from the Media.
HAL_StatusTypeDef	HAL_I2S_DMAStop (I2S_HandleTypeDef *hi2s)
	Resumes the audio stream playing from the Media.
void	HAL_I2S_IRQHandler (I2S_HandleTypeDef *hi2s)
	This function handles I2S interrupt request.
__weak void	HAL_I2S_TxHalfCpltCallback (I2S_HandleTypeDef *hi2s)
	Tx Transfer Half completed callbacks.
__weak void	HAL_I2S_TxCpltCallback (I2S_HandleTypeDef *hi2s)
	Tx Transfer completed callbacks.
__weak void	HAL_I2S_RxHalfCpltCallback (I2S_HandleTypeDef *hi2s)
	Rx Transfer half completed callbacks.
__weak void	HAL_I2S_RxCpltCallback (I2S_HandleTypeDef *hi2s)
	Rx Transfer completed callbacks.
__weak void	HAL_I2S_ErrorCallback (I2S_HandleTypeDef *hi2s)
	I2S error callbacks.
HAL_I2S_StateTypeDef	HAL_I2S_GetState (I2S_HandleTypeDef *hi2s)
	Return the I2S state.
uint32_t	HAL_I2S_GetError (I2S_HandleTypeDef *hi2s)
	Return the I2S error code.

---

Detailed Description

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.

Author:

MCD Application Team

 ===============================================================================
                  ##### 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.
            (+++) Enable the DMAx interface clock.
            (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
            (+++) Configure the DMA Tx/Rx Stream.
            (+++) Associate the initialized DMA handle to the I2S DMA Tx/Rx handle.
            (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the
                DMA Tx/Rx Stream.

   (#) Program the Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity
       using HAL_I2S_Init() function.

   -@- The specific I2S interrupts (Transmission complete interrupt,
       RXNE interrupt and Error Interrupts) will be managed using the macros
       __HAL_I2S_ENABLE_IT() and __HAL_I2S_DISABLE_IT() inside the transmit and receive process.
   -@- Make sure that either:
        (+@) I2S PLL is configured or
        (+@) External clock source is configured after setting correctly
             the define constant EXTERNAL_CLOCK_VALUE in the stm32f4xx_hal_conf.h file.

   (#) Three operation modes 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

  

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Definition in file stm32f4xx_hal_i2s.c.