DISCO-F746_WAV_PLAYER - SPKT

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Dependencies: F746_GUI SD_PlayerSkeleton F746_SAI_IO

SRC_STM32F7/targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_i2s.c@0:8ede47d38d10, 2019-06-04 (annotated)

Committer:: phungductung
Date:: Tue Jun 04 21:37:21 2019 +0000
Revision:: 0:8ede47d38d10

SPKT

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User	Revision	Line number	New contents of line
phungductung	0:8ede47d38d10	1	/**
phungductung	0:8ede47d38d10	2	******************************************************************************
phungductung	0:8ede47d38d10	3	* @file stm32f7xx_hal_i2s.c
phungductung	0:8ede47d38d10	4	* @author MCD Application Team
phungductung	0:8ede47d38d10	5	* @version V1.0.4
phungductung	0:8ede47d38d10	6	* @date 09-December-2015
phungductung	0:8ede47d38d10	7	* @brief I2S HAL module driver.
phungductung	0:8ede47d38d10	8	* This file provides firmware functions to manage the following
phungductung	0:8ede47d38d10	9	* functionalities of the Integrated Interchip Sound (I2S) peripheral:
phungductung	0:8ede47d38d10	10	* + Initialization and de-initialization functions
phungductung	0:8ede47d38d10	11	* + IO operation functions
phungductung	0:8ede47d38d10	12	* + Peripheral State and Errors functions
phungductung	0:8ede47d38d10	13	@verbatim
phungductung	0:8ede47d38d10	14	===============================================================================
phungductung	0:8ede47d38d10	15	##### How to use this driver #####
phungductung	0:8ede47d38d10	16	===============================================================================
phungductung	0:8ede47d38d10	17	[..]
phungductung	0:8ede47d38d10	18	The I2S HAL driver can be used as follows:
phungductung	0:8ede47d38d10	19
phungductung	0:8ede47d38d10	20	(#) Declare a I2S_HandleTypeDef handle structure.
phungductung	0:8ede47d38d10	21	(#) Initialize the I2S low level resources by implement the HAL_I2S_MspInit() API:
phungductung	0:8ede47d38d10	22	(##) Enable the SPIx interface clock.
phungductung	0:8ede47d38d10	23	(##) I2S pins configuration:
phungductung	0:8ede47d38d10	24	(+++) Enable the clock for the I2S GPIOs.
phungductung	0:8ede47d38d10	25	(+++) Configure these I2S pins as alternate function pull-up.
phungductung	0:8ede47d38d10	26	(##) NVIC configuration if you need to use interrupt process (HAL_I2S_Transmit_IT()
phungductung	0:8ede47d38d10	27	and HAL_I2S_Receive_IT() APIs).
phungductung	0:8ede47d38d10	28	(+++) Configure the I2Sx interrupt priority.
phungductung	0:8ede47d38d10	29	(+++) Enable the NVIC I2S IRQ handle.
phungductung	0:8ede47d38d10	30	(##) DMA Configuration if you need to use DMA process (HAL_I2S_Transmit_DMA()
phungductung	0:8ede47d38d10	31	and HAL_I2S_Receive_DMA() APIs:
phungductung	0:8ede47d38d10	32	(+++) Declare a DMA handle structure for the Tx/Rx channel.
phungductung	0:8ede47d38d10	33	(+++) Enable the DMAx interface clock.
phungductung	0:8ede47d38d10	34	(+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
phungductung	0:8ede47d38d10	35	(+++) Configure the DMA Tx/Rx Channel.
phungductung	0:8ede47d38d10	36	(+++) Associate the initialized DMA handle to the I2S DMA Tx/Rx handle.
phungductung	0:8ede47d38d10	37	(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the
phungductung	0:8ede47d38d10	38	DMA Tx/Rx Channel.
phungductung	0:8ede47d38d10	39
phungductung	0:8ede47d38d10	40	(#) Program the Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity
phungductung	0:8ede47d38d10	41	using HAL_I2S_Init() function.
phungductung	0:8ede47d38d10	42
phungductung	0:8ede47d38d10	43	-@- The specific I2S interrupts (Transmission complete interrupt,
phungductung	0:8ede47d38d10	44	RXNE interrupt and Error Interrupts) will be managed using the macros
phungductung	0:8ede47d38d10	45	__HAL_I2S_ENABLE_IT() and __HAL_I2S_DISABLE_IT() inside the transmit and receive process.
phungductung	0:8ede47d38d10	46	-@- Make sure that either:
phungductung	0:8ede47d38d10	47	(+@) I2S clock is configured based on SYSCLK or
phungductung	0:8ede47d38d10	48	(+@) External clock source is configured after setting correctly
phungductung	0:8ede47d38d10	49	the define constant EXTERNAL_CLOCK_VALUE in the stm32f3xx_hal_conf.h file.
phungductung	0:8ede47d38d10	50
phungductung	0:8ede47d38d10	51	(#) Three mode of operations are available within this driver :
phungductung	0:8ede47d38d10	52
phungductung	0:8ede47d38d10	53	* Polling mode IO operation *
phungductung	0:8ede47d38d10	54	=================================
phungductung	0:8ede47d38d10	55	[..]
phungductung	0:8ede47d38d10	56	(+) Send an amount of data in blocking mode using HAL_I2S_Transmit()
phungductung	0:8ede47d38d10	57	(+) Receive an amount of data in blocking mode using HAL_I2S_Receive()
phungductung	0:8ede47d38d10	58
phungductung	0:8ede47d38d10	59	* Interrupt mode IO operation *
phungductung	0:8ede47d38d10	60	===================================
phungductung	0:8ede47d38d10	61	[..]
phungductung	0:8ede47d38d10	62	(+) Send an amount of data in non blocking mode using HAL_I2S_Transmit_IT()
phungductung	0:8ede47d38d10	63	(+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can
phungductung	0:8ede47d38d10	64	add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback
phungductung	0:8ede47d38d10	65	(+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
phungductung	0:8ede47d38d10	66	add his own code by customization of function pointer HAL_I2S_TxCpltCallback
phungductung	0:8ede47d38d10	67	(+) Receive an amount of data in non blocking mode using HAL_I2S_Receive_IT()
phungductung	0:8ede47d38d10	68	(+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can
phungductung	0:8ede47d38d10	69	add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback
phungductung	0:8ede47d38d10	70	(+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can
phungductung	0:8ede47d38d10	71	add his own code by customization of function pointer HAL_I2S_RxCpltCallback
phungductung	0:8ede47d38d10	72	(+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
phungductung	0:8ede47d38d10	73	add his own code by customization of function pointer HAL_I2S_ErrorCallback
phungductung	0:8ede47d38d10	74
phungductung	0:8ede47d38d10	75	* DMA mode IO operation *
phungductung	0:8ede47d38d10	76	==============================
phungductung	0:8ede47d38d10	77	[..]
phungductung	0:8ede47d38d10	78	(+) Send an amount of data in non blocking mode (DMA) using HAL_I2S_Transmit_DMA()
phungductung	0:8ede47d38d10	79	(+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can
phungductung	0:8ede47d38d10	80	add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback
phungductung	0:8ede47d38d10	81	(+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
phungductung	0:8ede47d38d10	82	add his own code by customization of function pointer HAL_I2S_TxCpltCallback
phungductung	0:8ede47d38d10	83	(+) Receive an amount of data in non blocking mode (DMA) using HAL_I2S_Receive_DMA()
phungductung	0:8ede47d38d10	84	(+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can
phungductung	0:8ede47d38d10	85	add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback
phungductung	0:8ede47d38d10	86	(+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can
phungductung	0:8ede47d38d10	87	add his own code by customization of function pointer HAL_I2S_RxCpltCallback
phungductung	0:8ede47d38d10	88	(+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
phungductung	0:8ede47d38d10	89	add his own code by customization of function pointer HAL_I2S_ErrorCallback
phungductung	0:8ede47d38d10	90	(+) Pause the DMA Transfer using HAL_I2S_DMAPause()
phungductung	0:8ede47d38d10	91	(+) Resume the DMA Transfer using HAL_I2S_DMAResume()
phungductung	0:8ede47d38d10	92	(+) Stop the DMA Transfer using HAL_I2S_DMAStop()
phungductung	0:8ede47d38d10	93
phungductung	0:8ede47d38d10	94	* I2S HAL driver macros list *
phungductung	0:8ede47d38d10	95	=============================================
phungductung	0:8ede47d38d10	96	[..]
phungductung	0:8ede47d38d10	97	Below the list of most used macros in I2S HAL driver.
phungductung	0:8ede47d38d10	98
phungductung	0:8ede47d38d10	99	(+) __HAL_I2S_ENABLE: Enable the specified SPI peripheral (in I2S mode)
phungductung	0:8ede47d38d10	100	(+) __HAL_I2S_DISABLE: Disable the specified SPI peripheral (in I2S mode)
phungductung	0:8ede47d38d10	101	(+) __HAL_I2S_ENABLE_IT : Enable the specified I2S interrupts
phungductung	0:8ede47d38d10	102	(+) __HAL_I2S_DISABLE_IT : Disable the specified I2S interrupts
phungductung	0:8ede47d38d10	103	(+) __HAL_I2S_GET_FLAG: Check whether the specified I2S flag is set or not
phungductung	0:8ede47d38d10	104
phungductung	0:8ede47d38d10	105	[..]
phungductung	0:8ede47d38d10	106	(@) You can refer to the I2S HAL driver header file for more useful macros
phungductung	0:8ede47d38d10	107
phungductung	0:8ede47d38d10	108	@endverbatim
phungductung	0:8ede47d38d10	109	******************************************************************************
phungductung	0:8ede47d38d10	110	* @attention
phungductung	0:8ede47d38d10	111	*
phungductung	0:8ede47d38d10	112	* <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
phungductung	0:8ede47d38d10	113	*
phungductung	0:8ede47d38d10	114	* Redistribution and use in source and binary forms, with or without modification,
phungductung	0:8ede47d38d10	115	* are permitted provided that the following conditions are met:
phungductung	0:8ede47d38d10	116	* 1. Redistributions of source code must retain the above copyright notice,
phungductung	0:8ede47d38d10	117	* this list of conditions and the following disclaimer.
phungductung	0:8ede47d38d10	118	* 2. Redistributions in binary form must reproduce the above copyright notice,
phungductung	0:8ede47d38d10	119	* this list of conditions and the following disclaimer in the documentation
phungductung	0:8ede47d38d10	120	* and/or other materials provided with the distribution.
phungductung	0:8ede47d38d10	121	* 3. Neither the name of STMicroelectronics nor the names of its contributors
phungductung	0:8ede47d38d10	122	* may be used to endorse or promote products derived from this software
phungductung	0:8ede47d38d10	123	* without specific prior written permission.
phungductung	0:8ede47d38d10	124	*
phungductung	0:8ede47d38d10	125	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
phungductung	0:8ede47d38d10	126	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
phungductung	0:8ede47d38d10	127	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
phungductung	0:8ede47d38d10	128	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
phungductung	0:8ede47d38d10	129	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
phungductung	0:8ede47d38d10	130	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
phungductung	0:8ede47d38d10	131	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
phungductung	0:8ede47d38d10	132	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
phungductung	0:8ede47d38d10	133	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
phungductung	0:8ede47d38d10	134	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
phungductung	0:8ede47d38d10	135	*
phungductung	0:8ede47d38d10	136	******************************************************************************
phungductung	0:8ede47d38d10	137	*/
phungductung	0:8ede47d38d10	138
phungductung	0:8ede47d38d10	139	/* Includes ------------------------------------------------------------------*/
phungductung	0:8ede47d38d10	140	#include "stm32f7xx_hal.h"
phungductung	0:8ede47d38d10	141
phungductung	0:8ede47d38d10	142	/** @addtogroup STM32F7xx_HAL_Driver
phungductung	0:8ede47d38d10	143	* @{
phungductung	0:8ede47d38d10	144	*/
phungductung	0:8ede47d38d10	145
phungductung	0:8ede47d38d10	146	/** @defgroup I2S I2S
phungductung	0:8ede47d38d10	147	* @brief I2S HAL module driver
phungductung	0:8ede47d38d10	148	* @{
phungductung	0:8ede47d38d10	149	*/
phungductung	0:8ede47d38d10	150
phungductung	0:8ede47d38d10	151	#ifdef HAL_I2S_MODULE_ENABLED
phungductung	0:8ede47d38d10	152
phungductung	0:8ede47d38d10	153	/* Private typedef -----------------------------------------------------------*/
phungductung	0:8ede47d38d10	154	/* Private define ------------------------------------------------------------*/
phungductung	0:8ede47d38d10	155	/* Private macro -------------------------------------------------------------*/
phungductung	0:8ede47d38d10	156	/* Private variables ---------------------------------------------------------*/
phungductung	0:8ede47d38d10	157	/* Private function prototypes -----------------------------------------------*/
phungductung	0:8ede47d38d10	158	/** @defgroup I2S_Private_Functions I2S Private Functions
phungductung	0:8ede47d38d10	159	* @{
phungductung	0:8ede47d38d10	160	*/
phungductung	0:8ede47d38d10	161	static void I2S_DMATxCplt(DMA_HandleTypeDef *hdma);
phungductung	0:8ede47d38d10	162	static void I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
phungductung	0:8ede47d38d10	163	static void I2S_DMARxCplt(DMA_HandleTypeDef *hdma);
phungductung	0:8ede47d38d10	164	static void I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
phungductung	0:8ede47d38d10	165	static void I2S_DMAError(DMA_HandleTypeDef *hdma);
phungductung	0:8ede47d38d10	166	static void I2S_Transmit_IT(I2S_HandleTypeDef *hi2s);
phungductung	0:8ede47d38d10	167	static void I2S_Receive_IT(I2S_HandleTypeDef *hi2s);
phungductung	0:8ede47d38d10	168	static uint32_t I2S_GetClockFreq(I2S_HandleTypeDef *hi2s);
phungductung	0:8ede47d38d10	169	static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, uint32_t State, uint32_t Timeout);
phungductung	0:8ede47d38d10	170	/**
phungductung	0:8ede47d38d10	171	* @}
phungductung	0:8ede47d38d10	172	*/
phungductung	0:8ede47d38d10	173
phungductung	0:8ede47d38d10	174	/* Exported functions ---------------------------------------------------------*/
phungductung	0:8ede47d38d10	175
phungductung	0:8ede47d38d10	176	/** @defgroup I2S_Exported_Functions I2S Exported Functions
phungductung	0:8ede47d38d10	177	* @{
phungductung	0:8ede47d38d10	178	*/
phungductung	0:8ede47d38d10	179
phungductung	0:8ede47d38d10	180	/** @defgroup I2S_Exported_Functions_Group1 Initialization and de-initialization functions
phungductung	0:8ede47d38d10	181	* @brief Initialization and Configuration functions
phungductung	0:8ede47d38d10	182	*
phungductung	0:8ede47d38d10	183	@verbatim
phungductung	0:8ede47d38d10	184	===============================================================================
phungductung	0:8ede47d38d10	185	##### Initialization and de-initialization functions #####
phungductung	0:8ede47d38d10	186	===============================================================================
phungductung	0:8ede47d38d10	187	[..] This subsection provides a set of functions allowing to initialize and
phungductung	0:8ede47d38d10	188	de-initialize the I2Sx peripheral in simplex mode:
phungductung	0:8ede47d38d10	189
phungductung	0:8ede47d38d10	190	(+) User must Implement HAL_I2S_MspInit() function in which he configures
phungductung	0:8ede47d38d10	191	all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
phungductung	0:8ede47d38d10	192
phungductung	0:8ede47d38d10	193	(+) Call the function HAL_I2S_Init() to configure the selected device with
phungductung	0:8ede47d38d10	194	the selected configuration:
phungductung	0:8ede47d38d10	195	(++) Mode
phungductung	0:8ede47d38d10	196	(++) Standard
phungductung	0:8ede47d38d10	197	(++) Data Format
phungductung	0:8ede47d38d10	198	(++) MCLK Output
phungductung	0:8ede47d38d10	199	(++) Audio frequency
phungductung	0:8ede47d38d10	200	(++) Polarity
phungductung	0:8ede47d38d10	201	(++) Full duplex mode
phungductung	0:8ede47d38d10	202
phungductung	0:8ede47d38d10	203	(+) Call the function HAL_I2S_DeInit() to restore the default configuration
phungductung	0:8ede47d38d10	204	of the selected I2Sx peripheral.
phungductung	0:8ede47d38d10	205	@endverbatim
phungductung	0:8ede47d38d10	206	* @{
phungductung	0:8ede47d38d10	207	*/
phungductung	0:8ede47d38d10	208
phungductung	0:8ede47d38d10	209	/**
phungductung	0:8ede47d38d10	210	* @brief Initializes the I2S according to the specified parameters
phungductung	0:8ede47d38d10	211	* in the I2S_InitTypeDef and create the associated handle.
phungductung	0:8ede47d38d10	212	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	213	* the configuration information for I2S module
phungductung	0:8ede47d38d10	214	* @retval HAL status
phungductung	0:8ede47d38d10	215	*/
phungductung	0:8ede47d38d10	216	HAL_StatusTypeDef HAL_I2S_Init(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	217	{
phungductung	0:8ede47d38d10	218	uint16_t tmpreg = 0, i2sdiv = 2, i2sodd = 0, packetlength = 1;
phungductung	0:8ede47d38d10	219	uint32_t tmp = 0, i2sclk = 0;
phungductung	0:8ede47d38d10	220
phungductung	0:8ede47d38d10	221	/* Check the I2S handle allocation */
phungductung	0:8ede47d38d10	222	if(hi2s == NULL)
phungductung	0:8ede47d38d10	223	{
phungductung	0:8ede47d38d10	224	return HAL_ERROR;
phungductung	0:8ede47d38d10	225	}
phungductung	0:8ede47d38d10	226
phungductung	0:8ede47d38d10	227	/* Check the parameters */
phungductung	0:8ede47d38d10	228	assert_param(IS_I2S_ALL_INSTANCE(hi2s->Instance));
phungductung	0:8ede47d38d10	229	assert_param(IS_I2S_MODE(hi2s->Init.Mode));
phungductung	0:8ede47d38d10	230	assert_param(IS_I2S_STANDARD(hi2s->Init.Standard));
phungductung	0:8ede47d38d10	231	assert_param(IS_I2S_DATA_FORMAT(hi2s->Init.DataFormat));
phungductung	0:8ede47d38d10	232	assert_param(IS_I2S_MCLK_OUTPUT(hi2s->Init.MCLKOutput));
phungductung	0:8ede47d38d10	233	assert_param(IS_I2S_AUDIO_FREQ(hi2s->Init.AudioFreq));
phungductung	0:8ede47d38d10	234	assert_param(IS_I2S_CPOL(hi2s->Init.CPOL));
phungductung	0:8ede47d38d10	235	assert_param(IS_I2S_CLOCKSOURCE(hi2s->Init.ClockSource));
phungductung	0:8ede47d38d10	236
phungductung	0:8ede47d38d10	237	if(hi2s->State == HAL_I2S_STATE_RESET)
phungductung	0:8ede47d38d10	238	{
phungductung	0:8ede47d38d10	239	/* Allocate lock resource and initialize it */
phungductung	0:8ede47d38d10	240	hi2s->Lock = HAL_UNLOCKED;
phungductung	0:8ede47d38d10	241	/* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
phungductung	0:8ede47d38d10	242	HAL_I2S_MspInit(hi2s);
phungductung	0:8ede47d38d10	243	}
phungductung	0:8ede47d38d10	244
phungductung	0:8ede47d38d10	245	hi2s->State = HAL_I2S_STATE_BUSY;
phungductung	0:8ede47d38d10	246
phungductung	0:8ede47d38d10	247	/----------------------- SPIx I2SCFGR & I2SPR Configuration -----------------/
phungductung	0:8ede47d38d10	248	/* Clear I2SMOD, I2SE, I2SCFG, PCMSYNC, I2SSTD, CKPOL, DATLEN and CHLEN bits */
phungductung	0:8ede47d38d10	249	hi2s->Instance->I2SCFGR &= ~(SPI_I2SCFGR_CHLEN \| SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CKPOL \| \
phungductung	0:8ede47d38d10	250	SPI_I2SCFGR_I2SSTD \| SPI_I2SCFGR_PCMSYNC \| SPI_I2SCFGR_I2SCFG \| \
phungductung	0:8ede47d38d10	251	SPI_I2SCFGR_I2SE \| SPI_I2SCFGR_I2SMOD);
phungductung	0:8ede47d38d10	252	hi2s->Instance->I2SPR = 0x0002;
phungductung	0:8ede47d38d10	253
phungductung	0:8ede47d38d10	254	/* Get the I2SCFGR register value */
phungductung	0:8ede47d38d10	255	tmpreg = hi2s->Instance->I2SCFGR;
phungductung	0:8ede47d38d10	256
phungductung	0:8ede47d38d10	257	/* If the default value has to be written, reinitialize i2sdiv and i2sodd*/
phungductung	0:8ede47d38d10	258	if(hi2s->Init.AudioFreq == I2S_AUDIOFREQ_DEFAULT)
phungductung	0:8ede47d38d10	259	{
phungductung	0:8ede47d38d10	260	i2sodd = (uint16_t)0;
phungductung	0:8ede47d38d10	261	i2sdiv = (uint16_t)2;
phungductung	0:8ede47d38d10	262	}
phungductung	0:8ede47d38d10	263	/* If the requested audio frequency is not the default, compute the prescaler */
phungductung	0:8ede47d38d10	264	else
phungductung	0:8ede47d38d10	265	{
phungductung	0:8ede47d38d10	266	/* Check the frame length (For the Prescaler computing) *******************/
phungductung	0:8ede47d38d10	267	if(hi2s->Init.DataFormat == I2S_DATAFORMAT_16B)
phungductung	0:8ede47d38d10	268	{
phungductung	0:8ede47d38d10	269	/* Packet length is 16 bits */
phungductung	0:8ede47d38d10	270	packetlength = 1;
phungductung	0:8ede47d38d10	271	}
phungductung	0:8ede47d38d10	272	else
phungductung	0:8ede47d38d10	273	{
phungductung	0:8ede47d38d10	274	/* Packet length is 32 bits */
phungductung	0:8ede47d38d10	275	packetlength = 2;
phungductung	0:8ede47d38d10	276	}
phungductung	0:8ede47d38d10	277
phungductung	0:8ede47d38d10	278	/* Get I2S source Clock frequency ****************************************/
phungductung	0:8ede47d38d10	279
phungductung	0:8ede47d38d10	280	/* If an external I2S clock has to be used, the specific define should be set
phungductung	0:8ede47d38d10	281	in the project configuration or in the stm32f3xx_conf.h file */
phungductung	0:8ede47d38d10	282	if(hi2s->Init.ClockSource == I2S_CLOCK_EXTERNAL)
phungductung	0:8ede47d38d10	283	{
phungductung	0:8ede47d38d10	284	/* Set the I2S clock to the external clock value */
phungductung	0:8ede47d38d10	285	i2sclk = EXTERNAL_CLOCK_VALUE;
phungductung	0:8ede47d38d10	286	}
phungductung	0:8ede47d38d10	287	else
phungductung	0:8ede47d38d10	288	{
phungductung	0:8ede47d38d10	289	/* Get the I2S source clock value */
phungductung	0:8ede47d38d10	290	i2sclk = I2S_GetClockFreq(hi2s);
phungductung	0:8ede47d38d10	291	}
phungductung	0:8ede47d38d10	292
phungductung	0:8ede47d38d10	293	/* Compute the Real divider depending on the MCLK output state, with a floating point */
phungductung	0:8ede47d38d10	294	if(hi2s->Init.MCLKOutput == I2S_MCLKOUTPUT_ENABLE)
phungductung	0:8ede47d38d10	295	{
phungductung	0:8ede47d38d10	296	/* MCLK output is enabled */
phungductung	0:8ede47d38d10	297	tmp = (uint16_t)(((((i2sclk / 256) * 10) / hi2s->Init.AudioFreq)) + 5);
phungductung	0:8ede47d38d10	298	}
phungductung	0:8ede47d38d10	299	else
phungductung	0:8ede47d38d10	300	{
phungductung	0:8ede47d38d10	301	/* MCLK output is disabled */
phungductung	0:8ede47d38d10	302	tmp = (uint16_t)(((((i2sclk / (32 * packetlength)) *10 ) / hi2s->Init.AudioFreq)) + 5);
phungductung	0:8ede47d38d10	303	}
phungductung	0:8ede47d38d10	304
phungductung	0:8ede47d38d10	305	/* Remove the flatting point */
phungductung	0:8ede47d38d10	306	tmp = tmp / 10;
phungductung	0:8ede47d38d10	307
phungductung	0:8ede47d38d10	308	/* Check the parity of the divider */
phungductung	0:8ede47d38d10	309	i2sodd = (uint16_t)(tmp & (uint16_t)0x0001);
phungductung	0:8ede47d38d10	310
phungductung	0:8ede47d38d10	311	/* Compute the i2sdiv prescaler */
phungductung	0:8ede47d38d10	312	i2sdiv = (uint16_t)((tmp - i2sodd) / 2);
phungductung	0:8ede47d38d10	313
phungductung	0:8ede47d38d10	314	/* Get the Mask for the Odd bit (SPI_I2SPR[8]) register */
phungductung	0:8ede47d38d10	315	i2sodd = (uint16_t) (i2sodd << 8);
phungductung	0:8ede47d38d10	316	}
phungductung	0:8ede47d38d10	317
phungductung	0:8ede47d38d10	318	/* Test if the divider is 1 or 0 or greater than 0xFF */
phungductung	0:8ede47d38d10	319	if((i2sdiv < 2) \|\| (i2sdiv > 0xFF))
phungductung	0:8ede47d38d10	320	{
phungductung	0:8ede47d38d10	321	/* Set the default values */
phungductung	0:8ede47d38d10	322	i2sdiv = 2;
phungductung	0:8ede47d38d10	323	i2sodd = 0;
phungductung	0:8ede47d38d10	324	}
phungductung	0:8ede47d38d10	325
phungductung	0:8ede47d38d10	326	/* Write to SPIx I2SPR register the computed value */
phungductung	0:8ede47d38d10	327	hi2s->Instance->I2SPR = (uint16_t)((uint16_t)i2sdiv \| (uint16_t)(i2sodd \| (uint16_t)hi2s->Init.MCLKOutput));
phungductung	0:8ede47d38d10	328
phungductung	0:8ede47d38d10	329	/* Configure the I2S with the I2S_InitStruct values */
phungductung	0:8ede47d38d10	330	tmpreg \|= (uint16_t)((uint16_t)SPI_I2SCFGR_I2SMOD \| (uint16_t)(hi2s->Init.Mode \| \
phungductung	0:8ede47d38d10	331	(uint16_t)(hi2s->Init.Standard \| (uint16_t)(hi2s->Init.DataFormat \| \
phungductung	0:8ede47d38d10	332	(uint16_t)hi2s->Init.CPOL))));
phungductung	0:8ede47d38d10	333
phungductung	0:8ede47d38d10	334	/* Write to SPIx I2SCFGR */
phungductung	0:8ede47d38d10	335	hi2s->Instance->I2SCFGR = tmpreg;
phungductung	0:8ede47d38d10	336
phungductung	0:8ede47d38d10	337	hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
phungductung	0:8ede47d38d10	338	hi2s->State= HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	339
phungductung	0:8ede47d38d10	340	return HAL_OK;
phungductung	0:8ede47d38d10	341	}
phungductung	0:8ede47d38d10	342
phungductung	0:8ede47d38d10	343	/**
phungductung	0:8ede47d38d10	344	* @brief DeInitializes the I2S peripheral
phungductung	0:8ede47d38d10	345	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	346	* the configuration information for I2S module
phungductung	0:8ede47d38d10	347	* @retval HAL status
phungductung	0:8ede47d38d10	348	*/
phungductung	0:8ede47d38d10	349	HAL_StatusTypeDef HAL_I2S_DeInit(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	350	{
phungductung	0:8ede47d38d10	351	/* Check the I2S handle allocation */
phungductung	0:8ede47d38d10	352	if(hi2s == NULL)
phungductung	0:8ede47d38d10	353	{
phungductung	0:8ede47d38d10	354	return HAL_ERROR;
phungductung	0:8ede47d38d10	355	}
phungductung	0:8ede47d38d10	356
phungductung	0:8ede47d38d10	357	/* Check the parameters */
phungductung	0:8ede47d38d10	358	assert_param(IS_I2S_ALL_INSTANCE(hi2s->Instance));
phungductung	0:8ede47d38d10	359
phungductung	0:8ede47d38d10	360	hi2s->State = HAL_I2S_STATE_BUSY;
phungductung	0:8ede47d38d10	361
phungductung	0:8ede47d38d10	362	/* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
phungductung	0:8ede47d38d10	363	HAL_I2S_MspDeInit(hi2s);
phungductung	0:8ede47d38d10	364
phungductung	0:8ede47d38d10	365	hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
phungductung	0:8ede47d38d10	366	hi2s->State = HAL_I2S_STATE_RESET;
phungductung	0:8ede47d38d10	367
phungductung	0:8ede47d38d10	368	/* Release Lock */
phungductung	0:8ede47d38d10	369	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	370
phungductung	0:8ede47d38d10	371	return HAL_OK;
phungductung	0:8ede47d38d10	372	}
phungductung	0:8ede47d38d10	373
phungductung	0:8ede47d38d10	374	/**
phungductung	0:8ede47d38d10	375	* @brief I2S MSP Init
phungductung	0:8ede47d38d10	376	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	377	* the configuration information for I2S module
phungductung	0:8ede47d38d10	378	* @retval None
phungductung	0:8ede47d38d10	379	*/
phungductung	0:8ede47d38d10	380	__weak void HAL_I2S_MspInit(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	381	{
phungductung	0:8ede47d38d10	382	/* Prevent unused argument(s) compilation warning */
phungductung	0:8ede47d38d10	383	UNUSED(hi2s);
phungductung	0:8ede47d38d10	384
phungductung	0:8ede47d38d10	385	/* NOTE : This function Should not be modified, when the callback is needed,
phungductung	0:8ede47d38d10	386	the HAL_I2S_MspInit could be implemented in the user file
phungductung	0:8ede47d38d10	387	*/
phungductung	0:8ede47d38d10	388	}
phungductung	0:8ede47d38d10	389
phungductung	0:8ede47d38d10	390	/**
phungductung	0:8ede47d38d10	391	* @brief I2S MSP DeInit
phungductung	0:8ede47d38d10	392	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	393	* the configuration information for I2S module
phungductung	0:8ede47d38d10	394	* @retval None
phungductung	0:8ede47d38d10	395	*/
phungductung	0:8ede47d38d10	396	__weak void HAL_I2S_MspDeInit(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	397	{
phungductung	0:8ede47d38d10	398	/* Prevent unused argument(s) compilation warning */
phungductung	0:8ede47d38d10	399	UNUSED(hi2s);
phungductung	0:8ede47d38d10	400
phungductung	0:8ede47d38d10	401	/* NOTE : This function Should not be modified, when the callback is needed,
phungductung	0:8ede47d38d10	402	the HAL_I2S_MspDeInit could be implemented in the user file
phungductung	0:8ede47d38d10	403	*/
phungductung	0:8ede47d38d10	404	}
phungductung	0:8ede47d38d10	405
phungductung	0:8ede47d38d10	406	/**
phungductung	0:8ede47d38d10	407	* @}
phungductung	0:8ede47d38d10	408	*/
phungductung	0:8ede47d38d10	409
phungductung	0:8ede47d38d10	410	/** @defgroup I2S_Exported_Functions_Group2 Input and Output operation functions
phungductung	0:8ede47d38d10	411	* @brief Data transfers functions
phungductung	0:8ede47d38d10	412	*
phungductung	0:8ede47d38d10	413	@verbatim
phungductung	0:8ede47d38d10	414	===============================================================================
phungductung	0:8ede47d38d10	415	##### IO operation functions #####
phungductung	0:8ede47d38d10	416	===============================================================================
phungductung	0:8ede47d38d10	417	[..]
phungductung	0:8ede47d38d10	418	This subsection provides a set of functions allowing to manage the I2S data
phungductung	0:8ede47d38d10	419	transfers.
phungductung	0:8ede47d38d10	420
phungductung	0:8ede47d38d10	421	(#) There are two modes of transfer:
phungductung	0:8ede47d38d10	422	(++) Blocking mode : The communication is performed in the polling mode.
phungductung	0:8ede47d38d10	423	The status of all data processing is returned by the same function
phungductung	0:8ede47d38d10	424	after finishing transfer.
phungductung	0:8ede47d38d10	425	(++) No-Blocking mode : The communication is performed using Interrupts
phungductung	0:8ede47d38d10	426	or DMA. These functions return the status of the transfer startup.
phungductung	0:8ede47d38d10	427	The end of the data processing will be indicated through the
phungductung	0:8ede47d38d10	428	dedicated I2S IRQ when using Interrupt mode or the DMA IRQ when
phungductung	0:8ede47d38d10	429	using DMA mode.
phungductung	0:8ede47d38d10	430
phungductung	0:8ede47d38d10	431	(#) Blocking mode functions are :
phungductung	0:8ede47d38d10	432	(++) HAL_I2S_Transmit()
phungductung	0:8ede47d38d10	433	(++) HAL_I2S_Receive()
phungductung	0:8ede47d38d10	434
phungductung	0:8ede47d38d10	435	(#) No-Blocking mode functions with Interrupt are :
phungductung	0:8ede47d38d10	436	(++) HAL_I2S_Transmit_IT()
phungductung	0:8ede47d38d10	437	(++) HAL_I2S_Receive_IT()
phungductung	0:8ede47d38d10	438
phungductung	0:8ede47d38d10	439	(#) No-Blocking mode functions with DMA are :
phungductung	0:8ede47d38d10	440	(++) HAL_I2S_Transmit_DMA()
phungductung	0:8ede47d38d10	441	(++) HAL_I2S_Receive_DMA()
phungductung	0:8ede47d38d10	442
phungductung	0:8ede47d38d10	443	(#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
phungductung	0:8ede47d38d10	444	(++) HAL_I2S_TxCpltCallback()
phungductung	0:8ede47d38d10	445	(++) HAL_I2S_RxCpltCallback()
phungductung	0:8ede47d38d10	446	(++) HAL_I2S_ErrorCallback()
phungductung	0:8ede47d38d10	447
phungductung	0:8ede47d38d10	448	@endverbatim
phungductung	0:8ede47d38d10	449	* @{
phungductung	0:8ede47d38d10	450	*/
phungductung	0:8ede47d38d10	451
phungductung	0:8ede47d38d10	452	/**
phungductung	0:8ede47d38d10	453	* @brief Transmit an amount of data in blocking mode
phungductung	0:8ede47d38d10	454	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	455	* the configuration information for I2S module
phungductung	0:8ede47d38d10	456	* @param pData: a 16-bit pointer to data buffer.
phungductung	0:8ede47d38d10	457	* @param Size: number of data sample to be sent:
phungductung	0:8ede47d38d10	458	* @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
phungductung	0:8ede47d38d10	459	* configuration phase, the Size parameter means the number of 16-bit data length
phungductung	0:8ede47d38d10	460	* in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
phungductung	0:8ede47d38d10	461	* the Size parameter means the number of 16-bit data length.
phungductung	0:8ede47d38d10	462	* @param Timeout: Timeout duration
phungductung	0:8ede47d38d10	463	* @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
phungductung	0:8ede47d38d10	464	* between Master and Slave(example: audio streaming).
phungductung	0:8ede47d38d10	465	* @retval HAL status
phungductung	0:8ede47d38d10	466	*/
phungductung	0:8ede47d38d10	467	HAL_StatusTypeDef HAL_I2S_Transmit(I2S_HandleTypeDef hi2s, uint16_t pData, uint16_t Size, uint32_t Timeout)
phungductung	0:8ede47d38d10	468	{
phungductung	0:8ede47d38d10	469	if((pData == NULL ) \|\| (Size == 0))
phungductung	0:8ede47d38d10	470	{
phungductung	0:8ede47d38d10	471	return HAL_ERROR;
phungductung	0:8ede47d38d10	472	}
phungductung	0:8ede47d38d10	473
phungductung	0:8ede47d38d10	474	if(hi2s->State == HAL_I2S_STATE_READY)
phungductung	0:8ede47d38d10	475	{
phungductung	0:8ede47d38d10	476	if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)\|\|\
phungductung	0:8ede47d38d10	477	((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
phungductung	0:8ede47d38d10	478	{
phungductung	0:8ede47d38d10	479	hi2s->TxXferSize = (Size << 1);
phungductung	0:8ede47d38d10	480	hi2s->TxXferCount = (Size << 1);
phungductung	0:8ede47d38d10	481	}
phungductung	0:8ede47d38d10	482	else
phungductung	0:8ede47d38d10	483	{
phungductung	0:8ede47d38d10	484	hi2s->TxXferSize = Size;
phungductung	0:8ede47d38d10	485	hi2s->TxXferCount = Size;
phungductung	0:8ede47d38d10	486	}
phungductung	0:8ede47d38d10	487
phungductung	0:8ede47d38d10	488	/* Process Locked */
phungductung	0:8ede47d38d10	489	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	490
phungductung	0:8ede47d38d10	491	hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
phungductung	0:8ede47d38d10	492	hi2s->State = HAL_I2S_STATE_BUSY_TX;
phungductung	0:8ede47d38d10	493
phungductung	0:8ede47d38d10	494	/* Check if the I2S is already enabled */
phungductung	0:8ede47d38d10	495	if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
phungductung	0:8ede47d38d10	496	{
phungductung	0:8ede47d38d10	497	/* Enable I2S peripheral */
phungductung	0:8ede47d38d10	498	__HAL_I2S_ENABLE(hi2s);
phungductung	0:8ede47d38d10	499	}
phungductung	0:8ede47d38d10	500
phungductung	0:8ede47d38d10	501	while(hi2s->TxXferCount > 0)
phungductung	0:8ede47d38d10	502	{
phungductung	0:8ede47d38d10	503	hi2s->Instance->DR = (*pData++);
phungductung	0:8ede47d38d10	504	hi2s->TxXferCount--;
phungductung	0:8ede47d38d10	505	/* Wait until TXE flag is set */
phungductung	0:8ede47d38d10	506	if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXE, SET, Timeout) != HAL_OK)
phungductung	0:8ede47d38d10	507	{
phungductung	0:8ede47d38d10	508	/* Set the error code and execute error callback*/
phungductung	0:8ede47d38d10	509	hi2s->ErrorCode \|= HAL_I2S_ERROR_TIMEOUT;
phungductung	0:8ede47d38d10	510	HAL_I2S_ErrorCallback(hi2s);
phungductung	0:8ede47d38d10	511	return HAL_TIMEOUT;
phungductung	0:8ede47d38d10	512	}
phungductung	0:8ede47d38d10	513
phungductung	0:8ede47d38d10	514	/* Check if an underrun occurs */
phungductung	0:8ede47d38d10	515	if(__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_UDR) == SET)
phungductung	0:8ede47d38d10	516	{
phungductung	0:8ede47d38d10	517	/* Set the I2S State ready */
phungductung	0:8ede47d38d10	518	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	519
phungductung	0:8ede47d38d10	520	/* Process Unlocked */
phungductung	0:8ede47d38d10	521	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	522
phungductung	0:8ede47d38d10	523	/* Set the error code and execute error callback*/
phungductung	0:8ede47d38d10	524	hi2s->ErrorCode \|= HAL_I2S_ERROR_UDR;
phungductung	0:8ede47d38d10	525	HAL_I2S_ErrorCallback(hi2s);
phungductung	0:8ede47d38d10	526
phungductung	0:8ede47d38d10	527	return HAL_ERROR;
phungductung	0:8ede47d38d10	528	}
phungductung	0:8ede47d38d10	529	}
phungductung	0:8ede47d38d10	530
phungductung	0:8ede47d38d10	531	/* Check if Slave mode is selected */
phungductung	0:8ede47d38d10	532	if(((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_SLAVE_TX) \|\| ((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_SLAVE_RX))
phungductung	0:8ede47d38d10	533	{
phungductung	0:8ede47d38d10	534	/* Wait until Busy flag is reset */
phungductung	0:8ede47d38d10	535	if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_BSY, SET, Timeout) != HAL_OK)
phungductung	0:8ede47d38d10	536	{
phungductung	0:8ede47d38d10	537	/* Set the error code and execute error callback*/
phungductung	0:8ede47d38d10	538	hi2s->ErrorCode \|= HAL_I2S_ERROR_TIMEOUT;
phungductung	0:8ede47d38d10	539	HAL_I2S_ErrorCallback(hi2s);
phungductung	0:8ede47d38d10	540	return HAL_TIMEOUT;
phungductung	0:8ede47d38d10	541	}
phungductung	0:8ede47d38d10	542	}
phungductung	0:8ede47d38d10	543
phungductung	0:8ede47d38d10	544	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	545
phungductung	0:8ede47d38d10	546	/* Process Unlocked */
phungductung	0:8ede47d38d10	547	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	548
phungductung	0:8ede47d38d10	549	return HAL_OK;
phungductung	0:8ede47d38d10	550	}
phungductung	0:8ede47d38d10	551	else
phungductung	0:8ede47d38d10	552	{
phungductung	0:8ede47d38d10	553	return HAL_BUSY;
phungductung	0:8ede47d38d10	554	}
phungductung	0:8ede47d38d10	555	}
phungductung	0:8ede47d38d10	556
phungductung	0:8ede47d38d10	557	/**
phungductung	0:8ede47d38d10	558	* @brief Receive an amount of data in blocking mode
phungductung	0:8ede47d38d10	559	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	560	* the configuration information for I2S module
phungductung	0:8ede47d38d10	561	* @param pData: a 16-bit pointer to data buffer.
phungductung	0:8ede47d38d10	562	* @param Size: number of data sample to be sent:
phungductung	0:8ede47d38d10	563	* @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
phungductung	0:8ede47d38d10	564	* configuration phase, the Size parameter means the number of 16-bit data length
phungductung	0:8ede47d38d10	565	* in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
phungductung	0:8ede47d38d10	566	* the Size parameter means the number of 16-bit data length.
phungductung	0:8ede47d38d10	567	* @param Timeout: Timeout duration
phungductung	0:8ede47d38d10	568	* @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
phungductung	0:8ede47d38d10	569	* between Master and Slave(example: audio streaming).
phungductung	0:8ede47d38d10	570	* @note In I2S Master Receiver mode, just after enabling the peripheral the clock will be generate
phungductung	0:8ede47d38d10	571	* in continuous way and as the I2S is not disabled at the end of the I2S transaction.
phungductung	0:8ede47d38d10	572	* @retval HAL status
phungductung	0:8ede47d38d10	573	*/
phungductung	0:8ede47d38d10	574	HAL_StatusTypeDef HAL_I2S_Receive(I2S_HandleTypeDef hi2s, uint16_t pData, uint16_t Size, uint32_t Timeout)
phungductung	0:8ede47d38d10	575	{
phungductung	0:8ede47d38d10	576	if((pData == NULL ) \|\| (Size == 0))
phungductung	0:8ede47d38d10	577	{
phungductung	0:8ede47d38d10	578	return HAL_ERROR;
phungductung	0:8ede47d38d10	579	}
phungductung	0:8ede47d38d10	580
phungductung	0:8ede47d38d10	581	if(hi2s->State == HAL_I2S_STATE_READY)
phungductung	0:8ede47d38d10	582	{
phungductung	0:8ede47d38d10	583	if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)\|\|\
phungductung	0:8ede47d38d10	584	((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
phungductung	0:8ede47d38d10	585	{
phungductung	0:8ede47d38d10	586	hi2s->RxXferSize = (Size << 1);
phungductung	0:8ede47d38d10	587	hi2s->RxXferCount = (Size << 1);
phungductung	0:8ede47d38d10	588	}
phungductung	0:8ede47d38d10	589	else
phungductung	0:8ede47d38d10	590	{
phungductung	0:8ede47d38d10	591	hi2s->RxXferSize = Size;
phungductung	0:8ede47d38d10	592	hi2s->RxXferCount = Size;
phungductung	0:8ede47d38d10	593	}
phungductung	0:8ede47d38d10	594	/* Process Locked */
phungductung	0:8ede47d38d10	595	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	596
phungductung	0:8ede47d38d10	597	hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
phungductung	0:8ede47d38d10	598	hi2s->State = HAL_I2S_STATE_BUSY_RX;
phungductung	0:8ede47d38d10	599
phungductung	0:8ede47d38d10	600	/* Check if the I2S is already enabled */
phungductung	0:8ede47d38d10	601	if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
phungductung	0:8ede47d38d10	602	{
phungductung	0:8ede47d38d10	603	/* Enable I2S peripheral */
phungductung	0:8ede47d38d10	604	__HAL_I2S_ENABLE(hi2s);
phungductung	0:8ede47d38d10	605	}
phungductung	0:8ede47d38d10	606
phungductung	0:8ede47d38d10	607	/* Check if Master Receiver mode is selected */
phungductung	0:8ede47d38d10	608	if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_MASTER_RX)
phungductung	0:8ede47d38d10	609	{
phungductung	0:8ede47d38d10	610	/* Clear the Overrun Flag by a read operation on the SPI_DR register followed by a read
phungductung	0:8ede47d38d10	611	access to the SPI_SR register. */
phungductung	0:8ede47d38d10	612	__HAL_I2S_CLEAR_OVRFLAG(hi2s);
phungductung	0:8ede47d38d10	613	}
phungductung	0:8ede47d38d10	614
phungductung	0:8ede47d38d10	615	/* Receive data */
phungductung	0:8ede47d38d10	616	while(hi2s->RxXferCount > 0)
phungductung	0:8ede47d38d10	617	{
phungductung	0:8ede47d38d10	618	/* Wait until RXNE flag is set */
phungductung	0:8ede47d38d10	619	if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_RXNE, SET, Timeout) != HAL_OK)
phungductung	0:8ede47d38d10	620	{
phungductung	0:8ede47d38d10	621	/* Set the error code and execute error callback*/
phungductung	0:8ede47d38d10	622	hi2s->ErrorCode \|= HAL_I2S_ERROR_TIMEOUT;
phungductung	0:8ede47d38d10	623	HAL_I2S_ErrorCallback(hi2s);
phungductung	0:8ede47d38d10	624	return HAL_TIMEOUT;
phungductung	0:8ede47d38d10	625	}
phungductung	0:8ede47d38d10	626
phungductung	0:8ede47d38d10	627	/* Check if an overrun occurs */
phungductung	0:8ede47d38d10	628	if(__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_OVR) == SET)
phungductung	0:8ede47d38d10	629	{
phungductung	0:8ede47d38d10	630	/* Set the I2S State ready */
phungductung	0:8ede47d38d10	631	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	632
phungductung	0:8ede47d38d10	633	/* Process Unlocked */
phungductung	0:8ede47d38d10	634	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	635
phungductung	0:8ede47d38d10	636	/* Set the error code and execute error callback*/
phungductung	0:8ede47d38d10	637	hi2s->ErrorCode \|= HAL_I2S_ERROR_OVR;
phungductung	0:8ede47d38d10	638	HAL_I2S_ErrorCallback(hi2s);
phungductung	0:8ede47d38d10	639
phungductung	0:8ede47d38d10	640	return HAL_ERROR;
phungductung	0:8ede47d38d10	641	}
phungductung	0:8ede47d38d10	642
phungductung	0:8ede47d38d10	643	(*pData++) = hi2s->Instance->DR;
phungductung	0:8ede47d38d10	644	hi2s->RxXferCount--;
phungductung	0:8ede47d38d10	645	}
phungductung	0:8ede47d38d10	646
phungductung	0:8ede47d38d10	647	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	648
phungductung	0:8ede47d38d10	649	/* Process Unlocked */
phungductung	0:8ede47d38d10	650	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	651
phungductung	0:8ede47d38d10	652	return HAL_OK;
phungductung	0:8ede47d38d10	653	}
phungductung	0:8ede47d38d10	654	else
phungductung	0:8ede47d38d10	655	{
phungductung	0:8ede47d38d10	656	return HAL_BUSY;
phungductung	0:8ede47d38d10	657	}
phungductung	0:8ede47d38d10	658	}
phungductung	0:8ede47d38d10	659
phungductung	0:8ede47d38d10	660	/**
phungductung	0:8ede47d38d10	661	* @brief Transmit an amount of data in non-blocking mode with Interrupt
phungductung	0:8ede47d38d10	662	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	663	* the configuration information for I2S module
phungductung	0:8ede47d38d10	664	* @param pData: a 16-bit pointer to data buffer.
phungductung	0:8ede47d38d10	665	* @param Size: number of data sample to be sent:
phungductung	0:8ede47d38d10	666	* @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
phungductung	0:8ede47d38d10	667	* configuration phase, the Size parameter means the number of 16-bit data length
phungductung	0:8ede47d38d10	668	* in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
phungductung	0:8ede47d38d10	669	* the Size parameter means the number of 16-bit data length.
phungductung	0:8ede47d38d10	670	* @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
phungductung	0:8ede47d38d10	671	* between Master and Slave(example: audio streaming).
phungductung	0:8ede47d38d10	672	* @retval HAL status
phungductung	0:8ede47d38d10	673	*/
phungductung	0:8ede47d38d10	674	HAL_StatusTypeDef HAL_I2S_Transmit_IT(I2S_HandleTypeDef hi2s, uint16_t pData, uint16_t Size)
phungductung	0:8ede47d38d10	675	{
phungductung	0:8ede47d38d10	676	if(hi2s->State == HAL_I2S_STATE_READY)
phungductung	0:8ede47d38d10	677	{
phungductung	0:8ede47d38d10	678	if((pData == NULL) \|\| (Size == 0))
phungductung	0:8ede47d38d10	679	{
phungductung	0:8ede47d38d10	680	return HAL_ERROR;
phungductung	0:8ede47d38d10	681	}
phungductung	0:8ede47d38d10	682
phungductung	0:8ede47d38d10	683	hi2s->pTxBuffPtr = pData;
phungductung	0:8ede47d38d10	684	if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)\|\|\
phungductung	0:8ede47d38d10	685	((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
phungductung	0:8ede47d38d10	686	{
phungductung	0:8ede47d38d10	687	hi2s->TxXferSize = (Size << 1);
phungductung	0:8ede47d38d10	688	hi2s->TxXferCount = (Size << 1);
phungductung	0:8ede47d38d10	689	}
phungductung	0:8ede47d38d10	690	else
phungductung	0:8ede47d38d10	691	{
phungductung	0:8ede47d38d10	692	hi2s->TxXferSize = Size;
phungductung	0:8ede47d38d10	693	hi2s->TxXferCount = Size;
phungductung	0:8ede47d38d10	694	}
phungductung	0:8ede47d38d10	695
phungductung	0:8ede47d38d10	696	/* Process Locked */
phungductung	0:8ede47d38d10	697	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	698
phungductung	0:8ede47d38d10	699	hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
phungductung	0:8ede47d38d10	700	hi2s->State = HAL_I2S_STATE_BUSY_TX;
phungductung	0:8ede47d38d10	701
phungductung	0:8ede47d38d10	702	/* Enable TXE and ERR interrupt */
phungductung	0:8ede47d38d10	703	__HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_TXE \| I2S_IT_ERR));
phungductung	0:8ede47d38d10	704
phungductung	0:8ede47d38d10	705	/* Check if the I2S is already enabled */
phungductung	0:8ede47d38d10	706	if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
phungductung	0:8ede47d38d10	707	{
phungductung	0:8ede47d38d10	708	/* Enable I2S peripheral */
phungductung	0:8ede47d38d10	709	__HAL_I2S_ENABLE(hi2s);
phungductung	0:8ede47d38d10	710	}
phungductung	0:8ede47d38d10	711
phungductung	0:8ede47d38d10	712	/* Process Unlocked */
phungductung	0:8ede47d38d10	713	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	714
phungductung	0:8ede47d38d10	715	return HAL_OK;
phungductung	0:8ede47d38d10	716	}
phungductung	0:8ede47d38d10	717	else
phungductung	0:8ede47d38d10	718	{
phungductung	0:8ede47d38d10	719	return HAL_BUSY;
phungductung	0:8ede47d38d10	720	}
phungductung	0:8ede47d38d10	721	}
phungductung	0:8ede47d38d10	722
phungductung	0:8ede47d38d10	723	/**
phungductung	0:8ede47d38d10	724	* @brief Receive an amount of data in non-blocking mode with Interrupt
phungductung	0:8ede47d38d10	725	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	726	* the configuration information for I2S module
phungductung	0:8ede47d38d10	727	* @param pData: a 16-bit pointer to the Receive data buffer.
phungductung	0:8ede47d38d10	728	* @param Size: number of data sample to be sent:
phungductung	0:8ede47d38d10	729	* @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
phungductung	0:8ede47d38d10	730	* configuration phase, the Size parameter means the number of 16-bit data length
phungductung	0:8ede47d38d10	731	* in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
phungductung	0:8ede47d38d10	732	* the Size parameter means the number of 16-bit data length.
phungductung	0:8ede47d38d10	733	* @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
phungductung	0:8ede47d38d10	734	* between Master and Slave(example: audio streaming).
phungductung	0:8ede47d38d10	735	* @note It is recommended to use DMA for the I2S receiver to avoid de-synchronisation
phungductung	0:8ede47d38d10	736	* between Master and Slave otherwise the I2S interrupt should be optimized.
phungductung	0:8ede47d38d10	737	* @retval HAL status
phungductung	0:8ede47d38d10	738	*/
phungductung	0:8ede47d38d10	739	HAL_StatusTypeDef HAL_I2S_Receive_IT(I2S_HandleTypeDef hi2s, uint16_t pData, uint16_t Size)
phungductung	0:8ede47d38d10	740	{
phungductung	0:8ede47d38d10	741	if(hi2s->State == HAL_I2S_STATE_READY)
phungductung	0:8ede47d38d10	742	{
phungductung	0:8ede47d38d10	743	if((pData == NULL) \|\| (Size == 0))
phungductung	0:8ede47d38d10	744	{
phungductung	0:8ede47d38d10	745	return HAL_ERROR;
phungductung	0:8ede47d38d10	746	}
phungductung	0:8ede47d38d10	747
phungductung	0:8ede47d38d10	748	hi2s->pRxBuffPtr = pData;
phungductung	0:8ede47d38d10	749	if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)\|\|\
phungductung	0:8ede47d38d10	750	((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
phungductung	0:8ede47d38d10	751	{
phungductung	0:8ede47d38d10	752	hi2s->RxXferSize = (Size << 1);
phungductung	0:8ede47d38d10	753	hi2s->RxXferCount = (Size << 1);
phungductung	0:8ede47d38d10	754	}
phungductung	0:8ede47d38d10	755	else
phungductung	0:8ede47d38d10	756	{
phungductung	0:8ede47d38d10	757	hi2s->RxXferSize = Size;
phungductung	0:8ede47d38d10	758	hi2s->RxXferCount = Size;
phungductung	0:8ede47d38d10	759	}
phungductung	0:8ede47d38d10	760	/* Process Locked */
phungductung	0:8ede47d38d10	761	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	762
phungductung	0:8ede47d38d10	763	hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
phungductung	0:8ede47d38d10	764	hi2s->State = HAL_I2S_STATE_BUSY_RX;
phungductung	0:8ede47d38d10	765
phungductung	0:8ede47d38d10	766	/* Enable TXE and ERR interrupt */
phungductung	0:8ede47d38d10	767	__HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_RXNE \| I2S_IT_ERR));
phungductung	0:8ede47d38d10	768
phungductung	0:8ede47d38d10	769	/* Check if the I2S is already enabled */
phungductung	0:8ede47d38d10	770	if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
phungductung	0:8ede47d38d10	771	{
phungductung	0:8ede47d38d10	772	/* Enable I2S peripheral */
phungductung	0:8ede47d38d10	773	__HAL_I2S_ENABLE(hi2s);
phungductung	0:8ede47d38d10	774	}
phungductung	0:8ede47d38d10	775
phungductung	0:8ede47d38d10	776	/* Process Unlocked */
phungductung	0:8ede47d38d10	777	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	778
phungductung	0:8ede47d38d10	779	return HAL_OK;
phungductung	0:8ede47d38d10	780	}
phungductung	0:8ede47d38d10	781	else
phungductung	0:8ede47d38d10	782	{
phungductung	0:8ede47d38d10	783	return HAL_BUSY;
phungductung	0:8ede47d38d10	784	}
phungductung	0:8ede47d38d10	785	}
phungductung	0:8ede47d38d10	786
phungductung	0:8ede47d38d10	787	/**
phungductung	0:8ede47d38d10	788	* @brief Transmit an amount of data in non-blocking mode with DMA
phungductung	0:8ede47d38d10	789	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	790	* the configuration information for I2S module
phungductung	0:8ede47d38d10	791	* @param pData: a 16-bit pointer to the Transmit data buffer.
phungductung	0:8ede47d38d10	792	* @param Size: number of data sample to be sent:
phungductung	0:8ede47d38d10	793	* @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
phungductung	0:8ede47d38d10	794	* configuration phase, the Size parameter means the number of 16-bit data length
phungductung	0:8ede47d38d10	795	* in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
phungductung	0:8ede47d38d10	796	* the Size parameter means the number of 16-bit data length.
phungductung	0:8ede47d38d10	797	* @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
phungductung	0:8ede47d38d10	798	* between Master and Slave(example: audio streaming).
phungductung	0:8ede47d38d10	799	* @retval HAL status
phungductung	0:8ede47d38d10	800	*/
phungductung	0:8ede47d38d10	801	HAL_StatusTypeDef HAL_I2S_Transmit_DMA(I2S_HandleTypeDef hi2s, uint16_t pData, uint16_t Size)
phungductung	0:8ede47d38d10	802	{
phungductung	0:8ede47d38d10	803	uint32_t *tmp;
phungductung	0:8ede47d38d10	804
phungductung	0:8ede47d38d10	805	if((pData == NULL) \|\| (Size == 0))
phungductung	0:8ede47d38d10	806	{
phungductung	0:8ede47d38d10	807	return HAL_ERROR;
phungductung	0:8ede47d38d10	808	}
phungductung	0:8ede47d38d10	809
phungductung	0:8ede47d38d10	810	if(hi2s->State == HAL_I2S_STATE_READY)
phungductung	0:8ede47d38d10	811	{
phungductung	0:8ede47d38d10	812	hi2s->pTxBuffPtr = pData;
phungductung	0:8ede47d38d10	813	if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)\|\|\
phungductung	0:8ede47d38d10	814	((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
phungductung	0:8ede47d38d10	815	{
phungductung	0:8ede47d38d10	816	hi2s->TxXferSize = (Size << 1);
phungductung	0:8ede47d38d10	817	hi2s->TxXferCount = (Size << 1);
phungductung	0:8ede47d38d10	818	}
phungductung	0:8ede47d38d10	819	else
phungductung	0:8ede47d38d10	820	{
phungductung	0:8ede47d38d10	821	hi2s->TxXferSize = Size;
phungductung	0:8ede47d38d10	822	hi2s->TxXferCount = Size;
phungductung	0:8ede47d38d10	823	}
phungductung	0:8ede47d38d10	824
phungductung	0:8ede47d38d10	825	/* Process Locked */
phungductung	0:8ede47d38d10	826	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	827
phungductung	0:8ede47d38d10	828	hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
phungductung	0:8ede47d38d10	829	hi2s->State = HAL_I2S_STATE_BUSY_TX;
phungductung	0:8ede47d38d10	830
phungductung	0:8ede47d38d10	831	/* Set the I2S Tx DMA Half transfer complete callback */
phungductung	0:8ede47d38d10	832	hi2s->hdmatx->XferHalfCpltCallback = I2S_DMATxHalfCplt;
phungductung	0:8ede47d38d10	833
phungductung	0:8ede47d38d10	834	/* Set the I2S TxDMA transfer complete callback */
phungductung	0:8ede47d38d10	835	hi2s->hdmatx->XferCpltCallback = I2S_DMATxCplt;
phungductung	0:8ede47d38d10	836
phungductung	0:8ede47d38d10	837	/* Set the DMA error callback */
phungductung	0:8ede47d38d10	838	hi2s->hdmatx->XferErrorCallback = I2S_DMAError;
phungductung	0:8ede47d38d10	839
phungductung	0:8ede47d38d10	840	/* Enable the Tx DMA Channel */
phungductung	0:8ede47d38d10	841	tmp = (uint32_t*)&pData;
phungductung	0:8ede47d38d10	842	HAL_DMA_Start_IT(hi2s->hdmatx, (uint32_t)tmp, (uint32_t)&hi2s->Instance->DR, hi2s->TxXferSize);
phungductung	0:8ede47d38d10	843
phungductung	0:8ede47d38d10	844	/* Check if the I2S is already enabled */
phungductung	0:8ede47d38d10	845	if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
phungductung	0:8ede47d38d10	846	{
phungductung	0:8ede47d38d10	847	/* Enable I2S peripheral */
phungductung	0:8ede47d38d10	848	__HAL_I2S_ENABLE(hi2s);
phungductung	0:8ede47d38d10	849	}
phungductung	0:8ede47d38d10	850
phungductung	0:8ede47d38d10	851	/* Enable Tx DMA Request */
phungductung	0:8ede47d38d10	852	hi2s->Instance->CR2 \|= SPI_CR2_TXDMAEN;
phungductung	0:8ede47d38d10	853
phungductung	0:8ede47d38d10	854	/* Process Unlocked */
phungductung	0:8ede47d38d10	855	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	856
phungductung	0:8ede47d38d10	857	return HAL_OK;
phungductung	0:8ede47d38d10	858	}
phungductung	0:8ede47d38d10	859	else
phungductung	0:8ede47d38d10	860	{
phungductung	0:8ede47d38d10	861	return HAL_BUSY;
phungductung	0:8ede47d38d10	862	}
phungductung	0:8ede47d38d10	863	}
phungductung	0:8ede47d38d10	864
phungductung	0:8ede47d38d10	865	/**
phungductung	0:8ede47d38d10	866	* @brief Receive an amount of data in non-blocking mode with DMA
phungductung	0:8ede47d38d10	867	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	868	* the configuration information for I2S module
phungductung	0:8ede47d38d10	869	* @param pData: a 16-bit pointer to the Receive data buffer.
phungductung	0:8ede47d38d10	870	* @param Size: number of data sample to be sent:
phungductung	0:8ede47d38d10	871	* @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
phungductung	0:8ede47d38d10	872	* configuration phase, the Size parameter means the number of 16-bit data length
phungductung	0:8ede47d38d10	873	* in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
phungductung	0:8ede47d38d10	874	* the Size parameter means the number of 16-bit data length.
phungductung	0:8ede47d38d10	875	* @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
phungductung	0:8ede47d38d10	876	* between Master and Slave(example: audio streaming).
phungductung	0:8ede47d38d10	877	* @retval HAL status
phungductung	0:8ede47d38d10	878	*/
phungductung	0:8ede47d38d10	879	HAL_StatusTypeDef HAL_I2S_Receive_DMA(I2S_HandleTypeDef hi2s, uint16_t pData, uint16_t Size)
phungductung	0:8ede47d38d10	880	{
phungductung	0:8ede47d38d10	881	uint32_t *tmp;
phungductung	0:8ede47d38d10	882
phungductung	0:8ede47d38d10	883	if((pData == NULL) \|\| (Size == 0))
phungductung	0:8ede47d38d10	884	{
phungductung	0:8ede47d38d10	885	return HAL_ERROR;
phungductung	0:8ede47d38d10	886	}
phungductung	0:8ede47d38d10	887
phungductung	0:8ede47d38d10	888	if(hi2s->State == HAL_I2S_STATE_READY)
phungductung	0:8ede47d38d10	889	{
phungductung	0:8ede47d38d10	890	hi2s->pRxBuffPtr = pData;
phungductung	0:8ede47d38d10	891	if(((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_24B)\|\|\
phungductung	0:8ede47d38d10	892	((hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN \| SPI_I2SCFGR_CHLEN)) == I2S_DATAFORMAT_32B))
phungductung	0:8ede47d38d10	893	{
phungductung	0:8ede47d38d10	894	hi2s->RxXferSize = (Size << 1);
phungductung	0:8ede47d38d10	895	hi2s->RxXferCount = (Size << 1);
phungductung	0:8ede47d38d10	896	}
phungductung	0:8ede47d38d10	897	else
phungductung	0:8ede47d38d10	898	{
phungductung	0:8ede47d38d10	899	hi2s->RxXferSize = Size;
phungductung	0:8ede47d38d10	900	hi2s->RxXferCount = Size;
phungductung	0:8ede47d38d10	901	}
phungductung	0:8ede47d38d10	902	/* Process Locked */
phungductung	0:8ede47d38d10	903	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	904
phungductung	0:8ede47d38d10	905	hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
phungductung	0:8ede47d38d10	906	hi2s->State = HAL_I2S_STATE_BUSY_RX;
phungductung	0:8ede47d38d10	907
phungductung	0:8ede47d38d10	908	/* Set the I2S Rx DMA Half transfer complete callback */
phungductung	0:8ede47d38d10	909	hi2s->hdmarx->XferHalfCpltCallback = I2S_DMARxHalfCplt;
phungductung	0:8ede47d38d10	910
phungductung	0:8ede47d38d10	911	/* Set the I2S Rx DMA transfer complete callback */
phungductung	0:8ede47d38d10	912	hi2s->hdmarx->XferCpltCallback = I2S_DMARxCplt;
phungductung	0:8ede47d38d10	913
phungductung	0:8ede47d38d10	914	/* Set the DMA error callback */
phungductung	0:8ede47d38d10	915	hi2s->hdmarx->XferErrorCallback = I2S_DMAError;
phungductung	0:8ede47d38d10	916
phungductung	0:8ede47d38d10	917	/* Check if Master Receiver mode is selected */
phungductung	0:8ede47d38d10	918	if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_MASTER_RX)
phungductung	0:8ede47d38d10	919	{
phungductung	0:8ede47d38d10	920	/* Clear the Overrun Flag by a read operation to the SPI_DR register followed by a read
phungductung	0:8ede47d38d10	921	access to the SPI_SR register. */
phungductung	0:8ede47d38d10	922	__HAL_I2S_CLEAR_OVRFLAG(hi2s);
phungductung	0:8ede47d38d10	923	}
phungductung	0:8ede47d38d10	924
phungductung	0:8ede47d38d10	925	/* Enable the Rx DMA Channel */
phungductung	0:8ede47d38d10	926	tmp = (uint32_t*)&pData;
phungductung	0:8ede47d38d10	927	HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&hi2s->Instance->DR, (uint32_t)tmp, hi2s->RxXferSize);
phungductung	0:8ede47d38d10	928
phungductung	0:8ede47d38d10	929	/* Check if the I2S is already enabled */
phungductung	0:8ede47d38d10	930	if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
phungductung	0:8ede47d38d10	931	{
phungductung	0:8ede47d38d10	932	/* Enable I2S peripheral */
phungductung	0:8ede47d38d10	933	__HAL_I2S_ENABLE(hi2s);
phungductung	0:8ede47d38d10	934	}
phungductung	0:8ede47d38d10	935
phungductung	0:8ede47d38d10	936	/* Enable Rx DMA Request */
phungductung	0:8ede47d38d10	937	hi2s->Instance->CR2 \|= SPI_CR2_RXDMAEN;
phungductung	0:8ede47d38d10	938
phungductung	0:8ede47d38d10	939	/* Process Unlocked */
phungductung	0:8ede47d38d10	940	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	941
phungductung	0:8ede47d38d10	942	return HAL_OK;
phungductung	0:8ede47d38d10	943	}
phungductung	0:8ede47d38d10	944	else
phungductung	0:8ede47d38d10	945	{
phungductung	0:8ede47d38d10	946	return HAL_BUSY;
phungductung	0:8ede47d38d10	947	}
phungductung	0:8ede47d38d10	948	}
phungductung	0:8ede47d38d10	949
phungductung	0:8ede47d38d10	950	/**
phungductung	0:8ede47d38d10	951	* @brief Pauses the audio stream playing from the Media.
phungductung	0:8ede47d38d10	952	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	953	* the configuration information for I2S module
phungductung	0:8ede47d38d10	954	* @retval HAL status
phungductung	0:8ede47d38d10	955	*/
phungductung	0:8ede47d38d10	956	HAL_StatusTypeDef HAL_I2S_DMAPause(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	957	{
phungductung	0:8ede47d38d10	958	/* Process Locked */
phungductung	0:8ede47d38d10	959	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	960
phungductung	0:8ede47d38d10	961	if(hi2s->State == HAL_I2S_STATE_BUSY_TX)
phungductung	0:8ede47d38d10	962	{
phungductung	0:8ede47d38d10	963	/* Disable the I2S DMA Tx request */
phungductung	0:8ede47d38d10	964	hi2s->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
phungductung	0:8ede47d38d10	965	}
phungductung	0:8ede47d38d10	966	else if(hi2s->State == HAL_I2S_STATE_BUSY_RX)
phungductung	0:8ede47d38d10	967	{
phungductung	0:8ede47d38d10	968	/* Disable the I2S DMA Rx request */
phungductung	0:8ede47d38d10	969	hi2s->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
phungductung	0:8ede47d38d10	970	}
phungductung	0:8ede47d38d10	971	else if(hi2s->State == HAL_I2S_STATE_BUSY_TX_RX)
phungductung	0:8ede47d38d10	972	{
phungductung	0:8ede47d38d10	973	if((hi2s->Init.Mode == I2S_MODE_SLAVE_TX)\|\|(hi2s->Init.Mode == I2S_MODE_MASTER_TX))
phungductung	0:8ede47d38d10	974	{
phungductung	0:8ede47d38d10	975	/* Disable the I2S DMA Tx request */
phungductung	0:8ede47d38d10	976	hi2s->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
phungductung	0:8ede47d38d10	977	}
phungductung	0:8ede47d38d10	978	else
phungductung	0:8ede47d38d10	979	{
phungductung	0:8ede47d38d10	980	/* Disable the I2S DMA Rx request */
phungductung	0:8ede47d38d10	981	hi2s->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
phungductung	0:8ede47d38d10	982	}
phungductung	0:8ede47d38d10	983	}
phungductung	0:8ede47d38d10	984
phungductung	0:8ede47d38d10	985	/* Process Unlocked */
phungductung	0:8ede47d38d10	986	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	987
phungductung	0:8ede47d38d10	988	return HAL_OK;
phungductung	0:8ede47d38d10	989	}
phungductung	0:8ede47d38d10	990
phungductung	0:8ede47d38d10	991	/**
phungductung	0:8ede47d38d10	992	* @brief Resumes the audio stream playing from the Media.
phungductung	0:8ede47d38d10	993	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	994	* the configuration information for I2S module
phungductung	0:8ede47d38d10	995	* @retval HAL status
phungductung	0:8ede47d38d10	996	*/
phungductung	0:8ede47d38d10	997	HAL_StatusTypeDef HAL_I2S_DMAResume(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	998	{
phungductung	0:8ede47d38d10	999	/* Process Locked */
phungductung	0:8ede47d38d10	1000	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	1001
phungductung	0:8ede47d38d10	1002	if(hi2s->State == HAL_I2S_STATE_BUSY_TX)
phungductung	0:8ede47d38d10	1003	{
phungductung	0:8ede47d38d10	1004	/* Enable the I2S DMA Tx request */
phungductung	0:8ede47d38d10	1005	SET_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN);
phungductung	0:8ede47d38d10	1006	}
phungductung	0:8ede47d38d10	1007	else if(hi2s->State == HAL_I2S_STATE_BUSY_RX)
phungductung	0:8ede47d38d10	1008	{
phungductung	0:8ede47d38d10	1009	/* Enable the I2S DMA Rx request */
phungductung	0:8ede47d38d10	1010	SET_BIT(hi2s->Instance->CR2, SPI_CR2_RXDMAEN);
phungductung	0:8ede47d38d10	1011	}
phungductung	0:8ede47d38d10	1012
phungductung	0:8ede47d38d10	1013	/* If the I2S peripheral is still not enabled, enable it */
phungductung	0:8ede47d38d10	1014	if(HAL_IS_BIT_CLR(hi2s->Instance->I2SCFGR, SPI_I2SCFGR_I2SE))
phungductung	0:8ede47d38d10	1015	{
phungductung	0:8ede47d38d10	1016	/* Enable I2S peripheral */
phungductung	0:8ede47d38d10	1017	__HAL_I2S_ENABLE(hi2s);
phungductung	0:8ede47d38d10	1018	}
phungductung	0:8ede47d38d10	1019
phungductung	0:8ede47d38d10	1020	/* Process Unlocked */
phungductung	0:8ede47d38d10	1021	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	1022
phungductung	0:8ede47d38d10	1023	return HAL_OK;
phungductung	0:8ede47d38d10	1024	}
phungductung	0:8ede47d38d10	1025
phungductung	0:8ede47d38d10	1026	/**
phungductung	0:8ede47d38d10	1027	* @brief Stops the audio stream playing from the Media.
phungductung	0:8ede47d38d10	1028	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1029	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1030	* @retval HAL status
phungductung	0:8ede47d38d10	1031	*/
phungductung	0:8ede47d38d10	1032	HAL_StatusTypeDef HAL_I2S_DMAStop(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1033	{
phungductung	0:8ede47d38d10	1034	/* Process Locked */
phungductung	0:8ede47d38d10	1035	__HAL_LOCK(hi2s);
phungductung	0:8ede47d38d10	1036
phungductung	0:8ede47d38d10	1037	/* Disable the I2S Tx/Rx DMA requests */
phungductung	0:8ede47d38d10	1038	CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN);
phungductung	0:8ede47d38d10	1039	CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_RXDMAEN);
phungductung	0:8ede47d38d10	1040
phungductung	0:8ede47d38d10	1041	/* Abort the I2S DMA Channel tx */
phungductung	0:8ede47d38d10	1042	if(hi2s->hdmatx != NULL)
phungductung	0:8ede47d38d10	1043	{
phungductung	0:8ede47d38d10	1044	/* Disable the I2S DMA channel */
phungductung	0:8ede47d38d10	1045	__HAL_DMA_DISABLE(hi2s->hdmatx);
phungductung	0:8ede47d38d10	1046	HAL_DMA_Abort(hi2s->hdmatx);
phungductung	0:8ede47d38d10	1047	}
phungductung	0:8ede47d38d10	1048	/* Abort the I2S DMA Channel rx */
phungductung	0:8ede47d38d10	1049	if(hi2s->hdmarx != NULL)
phungductung	0:8ede47d38d10	1050	{
phungductung	0:8ede47d38d10	1051	/* Disable the I2S DMA channel */
phungductung	0:8ede47d38d10	1052	__HAL_DMA_DISABLE(hi2s->hdmarx);
phungductung	0:8ede47d38d10	1053	HAL_DMA_Abort(hi2s->hdmarx);
phungductung	0:8ede47d38d10	1054	}
phungductung	0:8ede47d38d10	1055
phungductung	0:8ede47d38d10	1056	/* Disable I2S peripheral */
phungductung	0:8ede47d38d10	1057	__HAL_I2S_DISABLE(hi2s);
phungductung	0:8ede47d38d10	1058
phungductung	0:8ede47d38d10	1059	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1060
phungductung	0:8ede47d38d10	1061	/* Process Unlocked */
phungductung	0:8ede47d38d10	1062	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	1063
phungductung	0:8ede47d38d10	1064	return HAL_OK;
phungductung	0:8ede47d38d10	1065	}
phungductung	0:8ede47d38d10	1066
phungductung	0:8ede47d38d10	1067	/**
phungductung	0:8ede47d38d10	1068	* @brief This function handles I2S interrupt request.
phungductung	0:8ede47d38d10	1069	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1070	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1071	* @retval HAL status
phungductung	0:8ede47d38d10	1072	*/
phungductung	0:8ede47d38d10	1073	void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1074	{
phungductung	0:8ede47d38d10	1075	__IO uint32_t i2ssr = hi2s->Instance->SR;
phungductung	0:8ede47d38d10	1076
phungductung	0:8ede47d38d10	1077	if(hi2s->State == HAL_I2S_STATE_BUSY_RX)
phungductung	0:8ede47d38d10	1078	{
phungductung	0:8ede47d38d10	1079	/* I2S in mode Receiver ----------------------------------------------------*/
phungductung	0:8ede47d38d10	1080	if(((i2ssr & I2S_FLAG_RXNE) == I2S_FLAG_RXNE) && (__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_RXNE) != RESET))
phungductung	0:8ede47d38d10	1081	{
phungductung	0:8ede47d38d10	1082	I2S_Receive_IT(hi2s);
phungductung	0:8ede47d38d10	1083	}
phungductung	0:8ede47d38d10	1084
phungductung	0:8ede47d38d10	1085	/* I2S Overrun error interrupt occurred -------------------------------------*/
phungductung	0:8ede47d38d10	1086	if(((i2ssr & I2S_FLAG_OVR) == I2S_FLAG_OVR) && (__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_ERR) != RESET))
phungductung	0:8ede47d38d10	1087	{
phungductung	0:8ede47d38d10	1088	/* Disable RXNE and ERR interrupt */
phungductung	0:8ede47d38d10	1089	__HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXNE \| I2S_IT_ERR));
phungductung	0:8ede47d38d10	1090
phungductung	0:8ede47d38d10	1091	/* Set the I2S State ready */
phungductung	0:8ede47d38d10	1092	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1093
phungductung	0:8ede47d38d10	1094	/* Set the error code and execute error callback*/
phungductung	0:8ede47d38d10	1095	hi2s->ErrorCode \|= HAL_I2S_ERROR_OVR;
phungductung	0:8ede47d38d10	1096	HAL_I2S_ErrorCallback(hi2s);
phungductung	0:8ede47d38d10	1097	}
phungductung	0:8ede47d38d10	1098	}
phungductung	0:8ede47d38d10	1099	else if(hi2s->State == HAL_I2S_STATE_BUSY_TX)
phungductung	0:8ede47d38d10	1100	{
phungductung	0:8ede47d38d10	1101	/* I2S in mode Transmitter ---------------------------------------------------*/
phungductung	0:8ede47d38d10	1102	if(((i2ssr & I2S_FLAG_TXE) == I2S_FLAG_TXE) && (__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_TXE) != RESET))
phungductung	0:8ede47d38d10	1103	{
phungductung	0:8ede47d38d10	1104	I2S_Transmit_IT(hi2s);
phungductung	0:8ede47d38d10	1105	}
phungductung	0:8ede47d38d10	1106
phungductung	0:8ede47d38d10	1107	/* I2S Underrun error interrupt occurred ------------------------------------*/
phungductung	0:8ede47d38d10	1108	if(((i2ssr & I2S_FLAG_UDR) == I2S_FLAG_UDR) && (__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_ERR) != RESET))
phungductung	0:8ede47d38d10	1109	{
phungductung	0:8ede47d38d10	1110	/* Disable TXE and ERR interrupt */
phungductung	0:8ede47d38d10	1111	__HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE \| I2S_IT_ERR));
phungductung	0:8ede47d38d10	1112
phungductung	0:8ede47d38d10	1113	/* Set the I2S State ready */
phungductung	0:8ede47d38d10	1114	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1115
phungductung	0:8ede47d38d10	1116	/* Set the error code and execute error callback*/
phungductung	0:8ede47d38d10	1117	hi2s->ErrorCode \|= HAL_I2S_ERROR_UDR;
phungductung	0:8ede47d38d10	1118	HAL_I2S_ErrorCallback(hi2s);
phungductung	0:8ede47d38d10	1119	}
phungductung	0:8ede47d38d10	1120	}
phungductung	0:8ede47d38d10	1121	}
phungductung	0:8ede47d38d10	1122
phungductung	0:8ede47d38d10	1123	/**
phungductung	0:8ede47d38d10	1124	* @}
phungductung	0:8ede47d38d10	1125	*/
phungductung	0:8ede47d38d10	1126
phungductung	0:8ede47d38d10	1127	/**
phungductung	0:8ede47d38d10	1128	* @}
phungductung	0:8ede47d38d10	1129	*/
phungductung	0:8ede47d38d10	1130
phungductung	0:8ede47d38d10	1131	/** @addtogroup I2S_Private_Functions I2S Private Functions
phungductung	0:8ede47d38d10	1132	* @{
phungductung	0:8ede47d38d10	1133	*/
phungductung	0:8ede47d38d10	1134	/**
phungductung	0:8ede47d38d10	1135	* @brief This function handles I2S Communication Timeout.
phungductung	0:8ede47d38d10	1136	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1137	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1138	* @param Flag: Flag checked
phungductung	0:8ede47d38d10	1139	* @param State: Value of the flag expected
phungductung	0:8ede47d38d10	1140	* @param Timeout: Duration of the timeout
phungductung	0:8ede47d38d10	1141	* @retval HAL status
phungductung	0:8ede47d38d10	1142	*/
phungductung	0:8ede47d38d10	1143	static HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag,
phungductung	0:8ede47d38d10	1144	uint32_t State, uint32_t Timeout)
phungductung	0:8ede47d38d10	1145	{
phungductung	0:8ede47d38d10	1146	uint32_t tickstart = 0;
phungductung	0:8ede47d38d10	1147
phungductung	0:8ede47d38d10	1148	/* Get tick */
phungductung	0:8ede47d38d10	1149	tickstart = HAL_GetTick();
phungductung	0:8ede47d38d10	1150
phungductung	0:8ede47d38d10	1151	/* Wait until flag is set */
phungductung	0:8ede47d38d10	1152	if(State == RESET)
phungductung	0:8ede47d38d10	1153	{
phungductung	0:8ede47d38d10	1154	while(__HAL_I2S_GET_FLAG(hi2s, Flag) == RESET)
phungductung	0:8ede47d38d10	1155	{
phungductung	0:8ede47d38d10	1156	if(Timeout != HAL_MAX_DELAY)
phungductung	0:8ede47d38d10	1157	{
phungductung	0:8ede47d38d10	1158	if((Timeout == 0)\|\|((HAL_GetTick() - tickstart ) > Timeout))
phungductung	0:8ede47d38d10	1159	{
phungductung	0:8ede47d38d10	1160	/* Set the I2S State ready */
phungductung	0:8ede47d38d10	1161	hi2s->State= HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1162
phungductung	0:8ede47d38d10	1163	/* Process Unlocked */
phungductung	0:8ede47d38d10	1164	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	1165
phungductung	0:8ede47d38d10	1166	return HAL_TIMEOUT;
phungductung	0:8ede47d38d10	1167	}
phungductung	0:8ede47d38d10	1168	}
phungductung	0:8ede47d38d10	1169	}
phungductung	0:8ede47d38d10	1170	}
phungductung	0:8ede47d38d10	1171	else
phungductung	0:8ede47d38d10	1172	{
phungductung	0:8ede47d38d10	1173	while(__HAL_I2S_GET_FLAG(hi2s, Flag) != RESET)
phungductung	0:8ede47d38d10	1174	{
phungductung	0:8ede47d38d10	1175	if(Timeout != HAL_MAX_DELAY)
phungductung	0:8ede47d38d10	1176	{
phungductung	0:8ede47d38d10	1177	if((Timeout == 0)\|\|((HAL_GetTick() - tickstart ) > Timeout))
phungductung	0:8ede47d38d10	1178	{
phungductung	0:8ede47d38d10	1179	/* Set the I2S State ready */
phungductung	0:8ede47d38d10	1180	hi2s->State= HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1181
phungductung	0:8ede47d38d10	1182	/* Process Unlocked */
phungductung	0:8ede47d38d10	1183	__HAL_UNLOCK(hi2s);
phungductung	0:8ede47d38d10	1184
phungductung	0:8ede47d38d10	1185	return HAL_TIMEOUT;
phungductung	0:8ede47d38d10	1186	}
phungductung	0:8ede47d38d10	1187	}
phungductung	0:8ede47d38d10	1188	}
phungductung	0:8ede47d38d10	1189	}
phungductung	0:8ede47d38d10	1190	return HAL_OK;
phungductung	0:8ede47d38d10	1191	}
phungductung	0:8ede47d38d10	1192	/**
phungductung	0:8ede47d38d10	1193	* @}
phungductung	0:8ede47d38d10	1194	*/
phungductung	0:8ede47d38d10	1195
phungductung	0:8ede47d38d10	1196	/** @addtogroup I2S_Exported_Functions I2S Exported Functions
phungductung	0:8ede47d38d10	1197	* @{
phungductung	0:8ede47d38d10	1198	*/
phungductung	0:8ede47d38d10	1199
phungductung	0:8ede47d38d10	1200	/** @addtogroup I2S_Exported_Functions_Group2 Input and Output operation functions
phungductung	0:8ede47d38d10	1201	* @{
phungductung	0:8ede47d38d10	1202	*/
phungductung	0:8ede47d38d10	1203	/**
phungductung	0:8ede47d38d10	1204	* @brief Tx Transfer Half completed callbacks
phungductung	0:8ede47d38d10	1205	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1206	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1207	* @retval None
phungductung	0:8ede47d38d10	1208	*/
phungductung	0:8ede47d38d10	1209	__weak void HAL_I2S_TxHalfCpltCallback(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1210	{
phungductung	0:8ede47d38d10	1211	/* Prevent unused argument(s) compilation warning */
phungductung	0:8ede47d38d10	1212	UNUSED(hi2s);
phungductung	0:8ede47d38d10	1213
phungductung	0:8ede47d38d10	1214	/* NOTE : This function Should not be modified, when the callback is needed,
phungductung	0:8ede47d38d10	1215	the HAL_I2S_TxHalfCpltCallback could be implemented in the user file
phungductung	0:8ede47d38d10	1216	*/
phungductung	0:8ede47d38d10	1217	}
phungductung	0:8ede47d38d10	1218
phungductung	0:8ede47d38d10	1219	/**
phungductung	0:8ede47d38d10	1220	* @brief Tx Transfer completed callbacks
phungductung	0:8ede47d38d10	1221	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1222	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1223	* @retval None
phungductung	0:8ede47d38d10	1224	*/
phungductung	0:8ede47d38d10	1225	__weak void HAL_I2S_TxCpltCallback(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1226	{
phungductung	0:8ede47d38d10	1227	/* Prevent unused argument(s) compilation warning */
phungductung	0:8ede47d38d10	1228	UNUSED(hi2s);
phungductung	0:8ede47d38d10	1229
phungductung	0:8ede47d38d10	1230	/* NOTE : This function Should not be modified, when the callback is needed,
phungductung	0:8ede47d38d10	1231	the HAL_I2S_TxCpltCallback could be implemented in the user file
phungductung	0:8ede47d38d10	1232	*/
phungductung	0:8ede47d38d10	1233	}
phungductung	0:8ede47d38d10	1234
phungductung	0:8ede47d38d10	1235	/**
phungductung	0:8ede47d38d10	1236	* @brief Rx Transfer half completed callbacks
phungductung	0:8ede47d38d10	1237	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1238	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1239	* @retval None
phungductung	0:8ede47d38d10	1240	*/
phungductung	0:8ede47d38d10	1241	__weak void HAL_I2S_RxHalfCpltCallback(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1242	{
phungductung	0:8ede47d38d10	1243	/* Prevent unused argument(s) compilation warning */
phungductung	0:8ede47d38d10	1244	UNUSED(hi2s);
phungductung	0:8ede47d38d10	1245
phungductung	0:8ede47d38d10	1246	/* NOTE : This function Should not be modified, when the callback is needed,
phungductung	0:8ede47d38d10	1247	the HAL_I2S_RxCpltCallback could be implemented in the user file
phungductung	0:8ede47d38d10	1248	*/
phungductung	0:8ede47d38d10	1249	}
phungductung	0:8ede47d38d10	1250
phungductung	0:8ede47d38d10	1251	/**
phungductung	0:8ede47d38d10	1252	* @brief Rx Transfer completed callbacks
phungductung	0:8ede47d38d10	1253	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1254	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1255	* @retval None
phungductung	0:8ede47d38d10	1256	*/
phungductung	0:8ede47d38d10	1257	__weak void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1258	{
phungductung	0:8ede47d38d10	1259	/* Prevent unused argument(s) compilation warning */
phungductung	0:8ede47d38d10	1260	UNUSED(hi2s);
phungductung	0:8ede47d38d10	1261
phungductung	0:8ede47d38d10	1262	/* NOTE : This function Should not be modified, when the callback is needed,
phungductung	0:8ede47d38d10	1263	the HAL_I2S_RxCpltCallback could be implemented in the user file
phungductung	0:8ede47d38d10	1264	*/
phungductung	0:8ede47d38d10	1265	}
phungductung	0:8ede47d38d10	1266
phungductung	0:8ede47d38d10	1267	/**
phungductung	0:8ede47d38d10	1268	* @brief I2S error callbacks
phungductung	0:8ede47d38d10	1269	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1270	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1271	* @retval None
phungductung	0:8ede47d38d10	1272	*/
phungductung	0:8ede47d38d10	1273	__weak void HAL_I2S_ErrorCallback(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1274	{
phungductung	0:8ede47d38d10	1275	/* Prevent unused argument(s) compilation warning */
phungductung	0:8ede47d38d10	1276	UNUSED(hi2s);
phungductung	0:8ede47d38d10	1277
phungductung	0:8ede47d38d10	1278	/* NOTE : This function Should not be modified, when the callback is needed,
phungductung	0:8ede47d38d10	1279	the HAL_I2S_ErrorCallback could be implemented in the user file
phungductung	0:8ede47d38d10	1280	*/
phungductung	0:8ede47d38d10	1281	}
phungductung	0:8ede47d38d10	1282
phungductung	0:8ede47d38d10	1283	/**
phungductung	0:8ede47d38d10	1284	* @}
phungductung	0:8ede47d38d10	1285	*/
phungductung	0:8ede47d38d10	1286
phungductung	0:8ede47d38d10	1287	/** @defgroup I2S_Exported_Functions_Group3 Peripheral State and Errors functions
phungductung	0:8ede47d38d10	1288	* @brief Peripheral State functions
phungductung	0:8ede47d38d10	1289	*
phungductung	0:8ede47d38d10	1290	@verbatim
phungductung	0:8ede47d38d10	1291	===============================================================================
phungductung	0:8ede47d38d10	1292	##### Peripheral State and Errors functions #####
phungductung	0:8ede47d38d10	1293	===============================================================================
phungductung	0:8ede47d38d10	1294	[..]
phungductung	0:8ede47d38d10	1295	This subsection permits to get in run-time the status of the peripheral
phungductung	0:8ede47d38d10	1296	and the data flow.
phungductung	0:8ede47d38d10	1297
phungductung	0:8ede47d38d10	1298	@endverbatim
phungductung	0:8ede47d38d10	1299	* @{
phungductung	0:8ede47d38d10	1300	*/
phungductung	0:8ede47d38d10	1301
phungductung	0:8ede47d38d10	1302	/**
phungductung	0:8ede47d38d10	1303	* @brief Return the I2S state
phungductung	0:8ede47d38d10	1304	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1305	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1306	* @retval HAL state
phungductung	0:8ede47d38d10	1307	*/
phungductung	0:8ede47d38d10	1308	HAL_I2S_StateTypeDef HAL_I2S_GetState(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1309	{
phungductung	0:8ede47d38d10	1310	return hi2s->State;
phungductung	0:8ede47d38d10	1311	}
phungductung	0:8ede47d38d10	1312
phungductung	0:8ede47d38d10	1313	/**
phungductung	0:8ede47d38d10	1314	* @brief Return the I2S error code
phungductung	0:8ede47d38d10	1315	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1316	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1317	* @retval I2S Error Code
phungductung	0:8ede47d38d10	1318	*/
phungductung	0:8ede47d38d10	1319	uint32_t HAL_I2S_GetError(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1320	{
phungductung	0:8ede47d38d10	1321	return hi2s->ErrorCode;
phungductung	0:8ede47d38d10	1322	}
phungductung	0:8ede47d38d10	1323	/**
phungductung	0:8ede47d38d10	1324	* @}
phungductung	0:8ede47d38d10	1325	*/
phungductung	0:8ede47d38d10	1326
phungductung	0:8ede47d38d10	1327	/**
phungductung	0:8ede47d38d10	1328	* @}
phungductung	0:8ede47d38d10	1329	*/
phungductung	0:8ede47d38d10	1330
phungductung	0:8ede47d38d10	1331	/**
phungductung	0:8ede47d38d10	1332	* @brief Get I2S Input Clock based on I2S source clock selection
phungductung	0:8ede47d38d10	1333	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1334	* the configuration information for I2S module.
phungductung	0:8ede47d38d10	1335	* @retval I2S Clock Input
phungductung	0:8ede47d38d10	1336	*/
phungductung	0:8ede47d38d10	1337	static uint32_t I2S_GetClockFreq(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1338	{
phungductung	0:8ede47d38d10	1339	uint32_t tmpreg = 0;
phungductung	0:8ede47d38d10	1340	/* This variable used to store the VCO Input (value in Hz) */
phungductung	0:8ede47d38d10	1341	uint32_t vcoinput = 0;
phungductung	0:8ede47d38d10	1342	/* This variable used to store the I2S_CK_x (value in Hz) */
phungductung	0:8ede47d38d10	1343	uint32_t i2sclocksource = 0;
phungductung	0:8ede47d38d10	1344
phungductung	0:8ede47d38d10	1345	/* Configure I2S Clock based on I2S source clock selection */
phungductung	0:8ede47d38d10	1346
phungductung	0:8ede47d38d10	1347	/* I2S_CLK_x : I2S Block Clock configuration for different clock sources selected */
phungductung	0:8ede47d38d10	1348	switch(hi2s->Init.ClockSource)
phungductung	0:8ede47d38d10	1349	{
phungductung	0:8ede47d38d10	1350	case I2S_CLOCK_SYSCLK :
phungductung	0:8ede47d38d10	1351	{
phungductung	0:8ede47d38d10	1352	/* Configure the PLLI2S division factor */
phungductung	0:8ede47d38d10	1353	/* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
phungductung	0:8ede47d38d10	1354	if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI)
phungductung	0:8ede47d38d10	1355	{
phungductung	0:8ede47d38d10	1356	/* In Case the PLL Source is HSI (Internal Clock) */
phungductung	0:8ede47d38d10	1357	vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
phungductung	0:8ede47d38d10	1358	}
phungductung	0:8ede47d38d10	1359	else
phungductung	0:8ede47d38d10	1360	{
phungductung	0:8ede47d38d10	1361	/* In Case the PLL Source is HSE (External Clock) */
phungductung	0:8ede47d38d10	1362	vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)));
phungductung	0:8ede47d38d10	1363	}
phungductung	0:8ede47d38d10	1364
phungductung	0:8ede47d38d10	1365	/* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
phungductung	0:8ede47d38d10	1366	/* I2S_CLK(first level) = PLLI2S_VCO Output/PLLI2SR */
phungductung	0:8ede47d38d10	1367	tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28;
phungductung	0:8ede47d38d10	1368	i2sclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6))/(tmpreg);
phungductung	0:8ede47d38d10	1369
phungductung	0:8ede47d38d10	1370	break;
phungductung	0:8ede47d38d10	1371	}
phungductung	0:8ede47d38d10	1372	case I2S_CLOCK_EXTERNAL :
phungductung	0:8ede47d38d10	1373	{
phungductung	0:8ede47d38d10	1374	i2sclocksource = EXTERNAL_CLOCK_VALUE;
phungductung	0:8ede47d38d10	1375	break;
phungductung	0:8ede47d38d10	1376	}
phungductung	0:8ede47d38d10	1377	default :
phungductung	0:8ede47d38d10	1378	{
phungductung	0:8ede47d38d10	1379	break;
phungductung	0:8ede47d38d10	1380	}
phungductung	0:8ede47d38d10	1381	}
phungductung	0:8ede47d38d10	1382
phungductung	0:8ede47d38d10	1383	/* the return result is the value of I2S clock */
phungductung	0:8ede47d38d10	1384	return i2sclocksource;
phungductung	0:8ede47d38d10	1385	}
phungductung	0:8ede47d38d10	1386
phungductung	0:8ede47d38d10	1387	/** @addtogroup I2S_Private_Functions I2S Private Functions
phungductung	0:8ede47d38d10	1388	* @{
phungductung	0:8ede47d38d10	1389	*/
phungductung	0:8ede47d38d10	1390	/**
phungductung	0:8ede47d38d10	1391	* @brief DMA I2S transmit process complete callback
phungductung	0:8ede47d38d10	1392	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1393	* the configuration information for the specified DMA module.
phungductung	0:8ede47d38d10	1394	* @retval None
phungductung	0:8ede47d38d10	1395	*/
phungductung	0:8ede47d38d10	1396	static void I2S_DMATxCplt(DMA_HandleTypeDef *hdma)
phungductung	0:8ede47d38d10	1397	{
phungductung	0:8ede47d38d10	1398	I2S_HandleTypeDef* hi2s = (I2S_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
phungductung	0:8ede47d38d10	1399
phungductung	0:8ede47d38d10	1400	if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
phungductung	0:8ede47d38d10	1401	{
phungductung	0:8ede47d38d10	1402	hi2s->TxXferCount = 0;
phungductung	0:8ede47d38d10	1403
phungductung	0:8ede47d38d10	1404	/* Disable Tx DMA Request */
phungductung	0:8ede47d38d10	1405	hi2s->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
phungductung	0:8ede47d38d10	1406
phungductung	0:8ede47d38d10	1407	if(hi2s->State == HAL_I2S_STATE_BUSY_TX_RX)
phungductung	0:8ede47d38d10	1408	{
phungductung	0:8ede47d38d10	1409	if(hi2s->RxXferCount == 0)
phungductung	0:8ede47d38d10	1410	{
phungductung	0:8ede47d38d10	1411	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1412	}
phungductung	0:8ede47d38d10	1413	}
phungductung	0:8ede47d38d10	1414	else
phungductung	0:8ede47d38d10	1415	{
phungductung	0:8ede47d38d10	1416	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1417	}
phungductung	0:8ede47d38d10	1418	}
phungductung	0:8ede47d38d10	1419	HAL_I2S_TxCpltCallback(hi2s);
phungductung	0:8ede47d38d10	1420	}
phungductung	0:8ede47d38d10	1421
phungductung	0:8ede47d38d10	1422	/**
phungductung	0:8ede47d38d10	1423	* @brief DMA I2S transmit process half complete callback
phungductung	0:8ede47d38d10	1424	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1425	* the configuration information for the specified DMA module.
phungductung	0:8ede47d38d10	1426	* @retval None
phungductung	0:8ede47d38d10	1427	*/
phungductung	0:8ede47d38d10	1428	static void I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
phungductung	0:8ede47d38d10	1429	{
phungductung	0:8ede47d38d10	1430	I2S_HandleTypeDef* hi2s = (I2S_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
phungductung	0:8ede47d38d10	1431
phungductung	0:8ede47d38d10	1432	HAL_I2S_TxHalfCpltCallback(hi2s);
phungductung	0:8ede47d38d10	1433	}
phungductung	0:8ede47d38d10	1434
phungductung	0:8ede47d38d10	1435	/**
phungductung	0:8ede47d38d10	1436	* @brief DMA I2S receive process complete callback
phungductung	0:8ede47d38d10	1437	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1438	* the configuration information for the specified DMA module.
phungductung	0:8ede47d38d10	1439	* @retval None
phungductung	0:8ede47d38d10	1440	*/
phungductung	0:8ede47d38d10	1441	static void I2S_DMARxCplt(DMA_HandleTypeDef *hdma)
phungductung	0:8ede47d38d10	1442	{
phungductung	0:8ede47d38d10	1443	I2S_HandleTypeDef* hi2s = (I2S_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
phungductung	0:8ede47d38d10	1444
phungductung	0:8ede47d38d10	1445	if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
phungductung	0:8ede47d38d10	1446	{
phungductung	0:8ede47d38d10	1447	/* Disable Rx DMA Request */
phungductung	0:8ede47d38d10	1448	hi2s->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
phungductung	0:8ede47d38d10	1449
phungductung	0:8ede47d38d10	1450	hi2s->RxXferCount = 0;
phungductung	0:8ede47d38d10	1451	if(hi2s->State == HAL_I2S_STATE_BUSY_TX_RX)
phungductung	0:8ede47d38d10	1452	{
phungductung	0:8ede47d38d10	1453	if(hi2s->TxXferCount == 0)
phungductung	0:8ede47d38d10	1454	{
phungductung	0:8ede47d38d10	1455	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1456	}
phungductung	0:8ede47d38d10	1457	}
phungductung	0:8ede47d38d10	1458	else
phungductung	0:8ede47d38d10	1459	{
phungductung	0:8ede47d38d10	1460	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1461	}
phungductung	0:8ede47d38d10	1462	}
phungductung	0:8ede47d38d10	1463	HAL_I2S_RxCpltCallback(hi2s);
phungductung	0:8ede47d38d10	1464	}
phungductung	0:8ede47d38d10	1465
phungductung	0:8ede47d38d10	1466	/**
phungductung	0:8ede47d38d10	1467	* @brief DMA I2S receive process half complete callback
phungductung	0:8ede47d38d10	1468	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1469	* the configuration information for the specified DMA module.
phungductung	0:8ede47d38d10	1470	* @retval None
phungductung	0:8ede47d38d10	1471	*/
phungductung	0:8ede47d38d10	1472	static void I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
phungductung	0:8ede47d38d10	1473	{
phungductung	0:8ede47d38d10	1474	I2S_HandleTypeDef* hi2s = (I2S_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
phungductung	0:8ede47d38d10	1475
phungductung	0:8ede47d38d10	1476	HAL_I2S_RxHalfCpltCallback(hi2s);
phungductung	0:8ede47d38d10	1477	}
phungductung	0:8ede47d38d10	1478
phungductung	0:8ede47d38d10	1479	/**
phungductung	0:8ede47d38d10	1480	* @brief DMA I2S communication error callback
phungductung	0:8ede47d38d10	1481	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1482	* the configuration information for the specified DMA module.
phungductung	0:8ede47d38d10	1483	* @retval None
phungductung	0:8ede47d38d10	1484	*/
phungductung	0:8ede47d38d10	1485	static void I2S_DMAError(DMA_HandleTypeDef *hdma)
phungductung	0:8ede47d38d10	1486	{
phungductung	0:8ede47d38d10	1487	I2S_HandleTypeDef* hi2s = ( I2S_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
phungductung	0:8ede47d38d10	1488
phungductung	0:8ede47d38d10	1489	/* Disable Rx and Tx DMA Request */
phungductung	0:8ede47d38d10	1490	hi2s->Instance->CR2 &= (uint32_t)(~(SPI_CR2_RXDMAEN \| SPI_CR2_TXDMAEN));
phungductung	0:8ede47d38d10	1491	hi2s->TxXferCount = 0;
phungductung	0:8ede47d38d10	1492	hi2s->RxXferCount = 0;
phungductung	0:8ede47d38d10	1493
phungductung	0:8ede47d38d10	1494	hi2s->State= HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1495
phungductung	0:8ede47d38d10	1496	/* Set the error code and execute error callback*/
phungductung	0:8ede47d38d10	1497	hi2s->ErrorCode \|= HAL_I2S_ERROR_DMA;
phungductung	0:8ede47d38d10	1498	HAL_I2S_ErrorCallback(hi2s);
phungductung	0:8ede47d38d10	1499	}
phungductung	0:8ede47d38d10	1500
phungductung	0:8ede47d38d10	1501	/**
phungductung	0:8ede47d38d10	1502	* @brief Transmit an amount of data in non-blocking mode with Interrupt
phungductung	0:8ede47d38d10	1503	* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
phungductung	0:8ede47d38d10	1504	* the configuration information for I2S module
phungductung	0:8ede47d38d10	1505	* @retval None
phungductung	0:8ede47d38d10	1506	*/
phungductung	0:8ede47d38d10	1507	static void I2S_Transmit_IT(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1508	{
phungductung	0:8ede47d38d10	1509	/* Transmit data */
phungductung	0:8ede47d38d10	1510	hi2s->Instance->DR = (*hi2s->pTxBuffPtr++);
phungductung	0:8ede47d38d10	1511	hi2s->TxXferCount--;
phungductung	0:8ede47d38d10	1512
phungductung	0:8ede47d38d10	1513	if(hi2s->TxXferCount == 0)
phungductung	0:8ede47d38d10	1514	{
phungductung	0:8ede47d38d10	1515	/* Disable TXE and ERR interrupt */
phungductung	0:8ede47d38d10	1516	__HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE \| I2S_IT_ERR));
phungductung	0:8ede47d38d10	1517
phungductung	0:8ede47d38d10	1518	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1519	HAL_I2S_TxCpltCallback(hi2s);
phungductung	0:8ede47d38d10	1520	}
phungductung	0:8ede47d38d10	1521	}
phungductung	0:8ede47d38d10	1522
phungductung	0:8ede47d38d10	1523	/**
phungductung	0:8ede47d38d10	1524	* @brief Receive an amount of data in non-blocking mode with Interrupt
phungductung	0:8ede47d38d10	1525	* @param hi2s: I2S handle
phungductung	0:8ede47d38d10	1526	* @retval None
phungductung	0:8ede47d38d10	1527	*/
phungductung	0:8ede47d38d10	1528	static void I2S_Receive_IT(I2S_HandleTypeDef *hi2s)
phungductung	0:8ede47d38d10	1529	{
phungductung	0:8ede47d38d10	1530	/* Receive data */
phungductung	0:8ede47d38d10	1531	(*hi2s->pRxBuffPtr++) = hi2s->Instance->DR;
phungductung	0:8ede47d38d10	1532	hi2s->RxXferCount--;
phungductung	0:8ede47d38d10	1533
phungductung	0:8ede47d38d10	1534	if(hi2s->RxXferCount == 0)
phungductung	0:8ede47d38d10	1535	{
phungductung	0:8ede47d38d10	1536	/* Disable RXNE and ERR interrupt */
phungductung	0:8ede47d38d10	1537	__HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXNE \| I2S_IT_ERR));
phungductung	0:8ede47d38d10	1538
phungductung	0:8ede47d38d10	1539	hi2s->State = HAL_I2S_STATE_READY;
phungductung	0:8ede47d38d10	1540	HAL_I2S_RxCpltCallback(hi2s);
phungductung	0:8ede47d38d10	1541	}
phungductung	0:8ede47d38d10	1542	}
phungductung	0:8ede47d38d10	1543	/**
phungductung	0:8ede47d38d10	1544	* @}
phungductung	0:8ede47d38d10	1545	*/
phungductung	0:8ede47d38d10	1546
phungductung	0:8ede47d38d10	1547	#endif /* HAL_I2S_MODULE_ENABLED */
phungductung	0:8ede47d38d10	1548	/**
phungductung	0:8ede47d38d10	1549	* @}
phungductung	0:8ede47d38d10	1550	*/
phungductung	0:8ede47d38d10	1551
phungductung	0:8ede47d38d10	1552	/**
phungductung	0:8ede47d38d10	1553	* @}
phungductung	0:8ede47d38d10	1554	*/
phungductung	0:8ede47d38d10	1555
phungductung	0:8ede47d38d10	1556	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Program
Created:	04 Jun 2019
Imports:	17
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	3
Followers:	1

SRC_STM32F7/targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_i2s.c@0:8ede47d38d10, 2019-06-04 (annotated)

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