mbed-dev - fix LPC812 PWM

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fix LPC812 PWM

Dependents: IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_sai.c@19:112740acecfa, 2015-11-10 (annotated)

Committer:: mbed_official
Date:: Tue Nov 10 09:30:11 2015 +0000
Revision:: 19:112740acecfa
Parent:: 0:9b334a45a8ff

Synchronized with git revision 7218418919aeaf775fb8d386ea7ee0dfc0c80ff9

Full URL: https://github.com/mbedmicro/mbed/commit/7218418919aeaf775fb8d386ea7ee0dfc0c80ff9/

DISCO_F469NI - add disco F469NI support

Who changed what in which revision?

User	Revision	Line number	New contents of line
bogdanm	0:9b334a45a8ff	1	/**
bogdanm	0:9b334a45a8ff	2	******************************************************************************
bogdanm	0:9b334a45a8ff	3	* @file stm32f4xx_hal_sai.c
bogdanm	0:9b334a45a8ff	4	* @author MCD Application Team
mbed_official	19:112740acecfa	5	* @version V1.4.1
mbed_official	19:112740acecfa	6	* @date 09-October-2015
bogdanm	0:9b334a45a8ff	7	* @brief SAI HAL module driver.
bogdanm	0:9b334a45a8ff	8	* This file provides firmware functions to manage the following
bogdanm	0:9b334a45a8ff	9	* functionalities of the Serial Audio Interface (SAI) peripheral:
bogdanm	0:9b334a45a8ff	10	* + Initialization/de-initialization functions
bogdanm	0:9b334a45a8ff	11	* + I/O operation functions
bogdanm	0:9b334a45a8ff	12	* + Peripheral Control functions
bogdanm	0:9b334a45a8ff	13	* + Peripheral State functions
bogdanm	0:9b334a45a8ff	14	*
bogdanm	0:9b334a45a8ff	15	@verbatim
bogdanm	0:9b334a45a8ff	16	==============================================================================
bogdanm	0:9b334a45a8ff	17	##### How to use this driver #####
bogdanm	0:9b334a45a8ff	18	==============================================================================
bogdanm	0:9b334a45a8ff	19
bogdanm	0:9b334a45a8ff	20	[..]
bogdanm	0:9b334a45a8ff	21	The SAI HAL driver can be used as follows:
bogdanm	0:9b334a45a8ff	22
bogdanm	0:9b334a45a8ff	23	(#) Declare a SAI_HandleTypeDef handle structure.
bogdanm	0:9b334a45a8ff	24	(#) Initialize the SAI low level resources by implementing the HAL_SAI_MspInit() API:
bogdanm	0:9b334a45a8ff	25	(##) Enable the SAI interface clock.
bogdanm	0:9b334a45a8ff	26	(##) SAI pins configuration:
bogdanm	0:9b334a45a8ff	27	(+++) Enable the clock for the SAI GPIOs.
bogdanm	0:9b334a45a8ff	28	(+++) Configure these SAI pins as alternate function pull-up.
bogdanm	0:9b334a45a8ff	29	(##) NVIC configuration if you need to use interrupt process (HAL_SAI_Transmit_IT()
bogdanm	0:9b334a45a8ff	30	and HAL_SAI_Receive_IT() APIs):
bogdanm	0:9b334a45a8ff	31	(+++) Configure the SAI interrupt priority.
bogdanm	0:9b334a45a8ff	32	(+++) Enable the NVIC SAI IRQ handle.
bogdanm	0:9b334a45a8ff	33
bogdanm	0:9b334a45a8ff	34	(##) DMA Configuration if you need to use DMA process (HAL_SAI_Transmit_DMA()
bogdanm	0:9b334a45a8ff	35	and HAL_SAI_Receive_DMA() APIs):
bogdanm	0:9b334a45a8ff	36	(+++) Declare a DMA handle structure for the Tx/Rx stream.
bogdanm	0:9b334a45a8ff	37	(+++) Enable the DMAx interface clock.
bogdanm	0:9b334a45a8ff	38	(+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
bogdanm	0:9b334a45a8ff	39	(+++) Configure the DMA Tx/Rx Stream.
bogdanm	0:9b334a45a8ff	40	(+++) Associate the initialized DMA handle to the SAI DMA Tx/Rx handle.
bogdanm	0:9b334a45a8ff	41	(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the
bogdanm	0:9b334a45a8ff	42	DMA Tx/Rx Stream.
bogdanm	0:9b334a45a8ff	43
bogdanm	0:9b334a45a8ff	44	(#) Program the SAI Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity
bogdanm	0:9b334a45a8ff	45	using HAL_SAI_Init() function.
bogdanm	0:9b334a45a8ff	46
bogdanm	0:9b334a45a8ff	47	-@- The specific SAI interrupts (FIFO request and Overrun underrun interrupt)
bogdanm	0:9b334a45a8ff	48	will be managed using the macros __SAI_ENABLE_IT() and __SAI_DISABLE_IT()
bogdanm	0:9b334a45a8ff	49	inside the transmit and receive process.
bogdanm	0:9b334a45a8ff	50
bogdanm	0:9b334a45a8ff	51	[..]
bogdanm	0:9b334a45a8ff	52	(@) SAI Clock Source configuration is managed differently depending on the selected
bogdanm	0:9b334a45a8ff	53	STM32F4 devices :
bogdanm	0:9b334a45a8ff	54	(+@) For STM32F446xx devices, the configuration is managed through RCCEx_PeriphCLKConfig()
bogdanm	0:9b334a45a8ff	55	function in the HAL RCC drivers
bogdanm	0:9b334a45a8ff	56	(+@) For STM32F439xx/STM32F437xx/STM32F429xx/STM32F427xx devices, the configuration
bogdanm	0:9b334a45a8ff	57	is managed within HAL SAI drivers through HAL_SAI_Init() function using
bogdanm	0:9b334a45a8ff	58	ClockSource field of SAI_InitTypeDef structure.
bogdanm	0:9b334a45a8ff	59	[..]
bogdanm	0:9b334a45a8ff	60	(@) Make sure that either:
bogdanm	0:9b334a45a8ff	61	(+@) I2S PLL is configured or
bogdanm	0:9b334a45a8ff	62	(+@) SAI PLL is configured or
bogdanm	0:9b334a45a8ff	63	(+@) External clock source is configured after setting correctly
bogdanm	0:9b334a45a8ff	64	the define constant EXTERNAL_CLOCK_VALUE in the stm32f4xx_hal_conf.h file.
bogdanm	0:9b334a45a8ff	65
bogdanm	0:9b334a45a8ff	66	[..]
bogdanm	0:9b334a45a8ff	67	(@) In master Tx mode: enabling the audio block immediately generates the bit clock
bogdanm	0:9b334a45a8ff	68	for the external slaves even if there is no data in the FIFO, However FS signal
bogdanm	0:9b334a45a8ff	69	generation is conditioned by the presence of data in the FIFO.
bogdanm	0:9b334a45a8ff	70
bogdanm	0:9b334a45a8ff	71	[..]
bogdanm	0:9b334a45a8ff	72	(@) In master Rx mode: enabling the audio block immediately generates the bit clock
bogdanm	0:9b334a45a8ff	73	and FS signal for the external slaves.
bogdanm	0:9b334a45a8ff	74
bogdanm	0:9b334a45a8ff	75	[..]
bogdanm	0:9b334a45a8ff	76	(@) It is mandatory to respect the following conditions in order to avoid bad SAI behavior:
bogdanm	0:9b334a45a8ff	77	(+@) First bit Offset <= (SLOT size - Data size)
bogdanm	0:9b334a45a8ff	78	(+@) Data size <= SLOT size
bogdanm	0:9b334a45a8ff	79	(+@) Number of SLOT x SLOT size = Frame length
bogdanm	0:9b334a45a8ff	80	(+@) The number of slots should be even when SAI_FS_CHANNEL_IDENTIFICATION is selected.
bogdanm	0:9b334a45a8ff	81
bogdanm	0:9b334a45a8ff	82	[..]
bogdanm	0:9b334a45a8ff	83	Three operation modes are available within this driver :
bogdanm	0:9b334a45a8ff	84
bogdanm	0:9b334a45a8ff	85	* Polling mode IO operation *
bogdanm	0:9b334a45a8ff	86	=================================
bogdanm	0:9b334a45a8ff	87	[..]
bogdanm	0:9b334a45a8ff	88	(+) Send an amount of data in blocking mode using HAL_SAI_Transmit()
bogdanm	0:9b334a45a8ff	89	(+) Receive an amount of data in blocking mode using HAL_SAI_Receive()
bogdanm	0:9b334a45a8ff	90
bogdanm	0:9b334a45a8ff	91	* Interrupt mode IO operation *
bogdanm	0:9b334a45a8ff	92	===================================
bogdanm	0:9b334a45a8ff	93	[..]
bogdanm	0:9b334a45a8ff	94	(+) Send an amount of data in non blocking mode using HAL_SAI_Transmit_IT()
bogdanm	0:9b334a45a8ff	95	(+) At transmission end of transfer HAL_SAI_TxCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	96	add his own code by customization of function pointer HAL_SAI_TxCpltCallback
bogdanm	0:9b334a45a8ff	97	(+) Receive an amount of data in non blocking mode using HAL_SAI_Receive_IT()
bogdanm	0:9b334a45a8ff	98	(+) At reception end of transfer HAL_SAI_RxCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	99	add his own code by customization of function pointer HAL_SAI_RxCpltCallback
bogdanm	0:9b334a45a8ff	100	(+) In case of transfer Error, HAL_SAI_ErrorCallback() function is executed and user can
bogdanm	0:9b334a45a8ff	101	add his own code by customization of function pointer HAL_SAI_ErrorCallback
bogdanm	0:9b334a45a8ff	102
bogdanm	0:9b334a45a8ff	103	* DMA mode IO operation *
bogdanm	0:9b334a45a8ff	104	==============================
bogdanm	0:9b334a45a8ff	105	[..]
bogdanm	0:9b334a45a8ff	106	(+) Send an amount of data in non blocking mode (DMA) using HAL_SAI_Transmit_DMA()
bogdanm	0:9b334a45a8ff	107	(+) At transmission end of transfer HAL_SAI_TxCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	108	add his own code by customization of function pointer HAL_SAI_TxCpltCallback
bogdanm	0:9b334a45a8ff	109	(+) Receive an amount of data in non blocking mode (DMA) using HAL_SAI_Receive_DMA()
bogdanm	0:9b334a45a8ff	110	(+) At reception end of transfer HAL_SAI_RxCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	111	add his own code by customization of function pointer HAL_SAI_RxCpltCallback
bogdanm	0:9b334a45a8ff	112	(+) In case of transfer Error, HAL_SAI_ErrorCallback() function is executed and user can
bogdanm	0:9b334a45a8ff	113	add his own code by customization of function pointer HAL_SAI_ErrorCallback
bogdanm	0:9b334a45a8ff	114	(+) Pause the DMA Transfer using HAL_SAI_DMAPause()
bogdanm	0:9b334a45a8ff	115	(+) Resume the DMA Transfer using HAL_SAI_DMAResume()
bogdanm	0:9b334a45a8ff	116	(+) Stop the DMA Transfer using HAL_SAI_DMAStop()
bogdanm	0:9b334a45a8ff	117
bogdanm	0:9b334a45a8ff	118	* SAI HAL driver macros list *
bogdanm	0:9b334a45a8ff	119	=============================================
bogdanm	0:9b334a45a8ff	120	[..]
bogdanm	0:9b334a45a8ff	121	Below the list of most used macros in USART HAL driver :
bogdanm	0:9b334a45a8ff	122
bogdanm	0:9b334a45a8ff	123	(+) __HAL_SAI_ENABLE: Enable the SAI peripheral
bogdanm	0:9b334a45a8ff	124	(+) __HAL_SAI_DISABLE: Disable the SAI peripheral
bogdanm	0:9b334a45a8ff	125	(+) __HAL_SAI_ENABLE_IT : Enable the specified SAI interrupts
bogdanm	0:9b334a45a8ff	126	(+) __HAL_SAI_DISABLE_IT : Disable the specified SAI interrupts
bogdanm	0:9b334a45a8ff	127	(+) __HAL_SAI_GET_IT_SOURCE: Check if the specified SAI interrupt source is
bogdanm	0:9b334a45a8ff	128	enabled or disabled
bogdanm	0:9b334a45a8ff	129	(+) __HAL_SAI_GET_FLAG: Check whether the specified SAI flag is set or not
bogdanm	0:9b334a45a8ff	130
bogdanm	0:9b334a45a8ff	131	@endverbatim
bogdanm	0:9b334a45a8ff	132	******************************************************************************
bogdanm	0:9b334a45a8ff	133	* @attention
bogdanm	0:9b334a45a8ff	134	*
bogdanm	0:9b334a45a8ff	135	* <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm	0:9b334a45a8ff	136	*
bogdanm	0:9b334a45a8ff	137	* Redistribution and use in source and binary forms, with or without modification,
bogdanm	0:9b334a45a8ff	138	* are permitted provided that the following conditions are met:
bogdanm	0:9b334a45a8ff	139	* 1. Redistributions of source code must retain the above copyright notice,
bogdanm	0:9b334a45a8ff	140	* this list of conditions and the following disclaimer.
bogdanm	0:9b334a45a8ff	141	* 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm	0:9b334a45a8ff	142	* this list of conditions and the following disclaimer in the documentation
bogdanm	0:9b334a45a8ff	143	* and/or other materials provided with the distribution.
bogdanm	0:9b334a45a8ff	144	* 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm	0:9b334a45a8ff	145	* may be used to endorse or promote products derived from this software
bogdanm	0:9b334a45a8ff	146	* without specific prior written permission.
bogdanm	0:9b334a45a8ff	147	*
bogdanm	0:9b334a45a8ff	148	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm	0:9b334a45a8ff	149	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm	0:9b334a45a8ff	150	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm	0:9b334a45a8ff	151	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm	0:9b334a45a8ff	152	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm	0:9b334a45a8ff	153	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm	0:9b334a45a8ff	154	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm	0:9b334a45a8ff	155	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm	0:9b334a45a8ff	156	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm	0:9b334a45a8ff	157	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm	0:9b334a45a8ff	158	*
bogdanm	0:9b334a45a8ff	159	******************************************************************************
bogdanm	0:9b334a45a8ff	160	*/
bogdanm	0:9b334a45a8ff	161
bogdanm	0:9b334a45a8ff	162	/* Includes ------------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	163	#include "stm32f4xx_hal.h"
bogdanm	0:9b334a45a8ff	164
bogdanm	0:9b334a45a8ff	165	/** @addtogroup STM32F4xx_HAL_Driver
bogdanm	0:9b334a45a8ff	166	* @{
bogdanm	0:9b334a45a8ff	167	*/
bogdanm	0:9b334a45a8ff	168
bogdanm	0:9b334a45a8ff	169	/** @defgroup SAI SAI
bogdanm	0:9b334a45a8ff	170	* @brief SAI HAL module driver
bogdanm	0:9b334a45a8ff	171	* @{
bogdanm	0:9b334a45a8ff	172	*/
bogdanm	0:9b334a45a8ff	173
bogdanm	0:9b334a45a8ff	174	#ifdef HAL_SAI_MODULE_ENABLED
bogdanm	0:9b334a45a8ff	175
mbed_official	19:112740acecfa	176	#if defined(STM32F427xx) \|\| defined(STM32F437xx) \|\| defined(STM32F429xx) \|\| defined(STM32F439xx) \|\|\
mbed_official	19:112740acecfa	177	defined(STM32F446xx) \|\| defined(STM32F469xx) \|\| defined(STM32F479xx)
bogdanm	0:9b334a45a8ff	178
bogdanm	0:9b334a45a8ff	179	/* Private typedef -----------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	180	/** @defgroup SAI_Private_Typedefs SAI Private Typedefs
bogdanm	0:9b334a45a8ff	181	* @{
bogdanm	0:9b334a45a8ff	182	*/
bogdanm	0:9b334a45a8ff	183	typedef enum {
bogdanm	0:9b334a45a8ff	184	SAI_MODE_DMA,
bogdanm	0:9b334a45a8ff	185	SAI_MODE_IT
bogdanm	0:9b334a45a8ff	186	}SAI_ModeTypedef;
bogdanm	0:9b334a45a8ff	187	/**
bogdanm	0:9b334a45a8ff	188	* @}
bogdanm	0:9b334a45a8ff	189	*/
bogdanm	0:9b334a45a8ff	190	/* Private define ------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	191	/** @defgroup SAI_Private_Constants SAI Private Constants
bogdanm	0:9b334a45a8ff	192	* @{
bogdanm	0:9b334a45a8ff	193	*/
bogdanm	0:9b334a45a8ff	194	#define SAI_FIFO_SIZE 8
bogdanm	0:9b334a45a8ff	195	#define SAI_DEFAULT_TIMEOUT 4
bogdanm	0:9b334a45a8ff	196	/**
bogdanm	0:9b334a45a8ff	197	* @}
bogdanm	0:9b334a45a8ff	198	*/
bogdanm	0:9b334a45a8ff	199
bogdanm	0:9b334a45a8ff	200	/* SAI registers Masks */
bogdanm	0:9b334a45a8ff	201	#define CR1_CLEAR_MASK ((uint32_t)0xFF04C010)
bogdanm	0:9b334a45a8ff	202	#define FRCR_CLEAR_MASK ((uint32_t)0xFFF88000)
bogdanm	0:9b334a45a8ff	203	#define SLOTR_CLEAR_MASK ((uint32_t)0x0000F020)
bogdanm	0:9b334a45a8ff	204
bogdanm	0:9b334a45a8ff	205	#define SAI_TIMEOUT_VALUE 10
bogdanm	0:9b334a45a8ff	206	/* Private macro -------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	207	/* Private variables ---------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	208	/* Private function prototypes -----------------------------------------------*/
bogdanm	0:9b334a45a8ff	209	static void SAI_FillFifo(SAI_HandleTypeDef *hsai);
bogdanm	0:9b334a45a8ff	210	static uint32_t SAI_InterruptFlag(SAI_HandleTypeDef *hsai, uint32_t mode);
bogdanm	0:9b334a45a8ff	211	static HAL_StatusTypeDef SAI_InitI2S(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot);
bogdanm	0:9b334a45a8ff	212	static HAL_StatusTypeDef SAI_InitPCM(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot);
bogdanm	0:9b334a45a8ff	213
bogdanm	0:9b334a45a8ff	214	static HAL_StatusTypeDef SAI_Disable(SAI_HandleTypeDef *hsai);
bogdanm	0:9b334a45a8ff	215	static void SAI_Transmit_IT8Bit(SAI_HandleTypeDef *hsai);
bogdanm	0:9b334a45a8ff	216	static void SAI_Transmit_IT16Bit(SAI_HandleTypeDef *hsai);
bogdanm	0:9b334a45a8ff	217	static void SAI_Transmit_IT32Bit(SAI_HandleTypeDef *hsai);
bogdanm	0:9b334a45a8ff	218	static void SAI_Receive_IT8Bit(SAI_HandleTypeDef *hsai);
bogdanm	0:9b334a45a8ff	219	static void SAI_Receive_IT16Bit(SAI_HandleTypeDef *hsai);
bogdanm	0:9b334a45a8ff	220	static void SAI_Receive_IT32Bit(SAI_HandleTypeDef *hsai);
bogdanm	0:9b334a45a8ff	221
bogdanm	0:9b334a45a8ff	222	static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	223	static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	224	static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	225	static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	226	static void SAI_DMAError(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	227
bogdanm	0:9b334a45a8ff	228	/* Exported functions ---------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	229
bogdanm	0:9b334a45a8ff	230	/** @defgroup SAI_Exported_Functions SAI Exported Functions
bogdanm	0:9b334a45a8ff	231	* @{
bogdanm	0:9b334a45a8ff	232	*/
bogdanm	0:9b334a45a8ff	233
bogdanm	0:9b334a45a8ff	234	/** @defgroup SAI_Exported_Functions_Group1 Initialization and de-initialization functions
bogdanm	0:9b334a45a8ff	235	* @brief Initialization and Configuration functions
bogdanm	0:9b334a45a8ff	236	*
bogdanm	0:9b334a45a8ff	237	@verbatim
bogdanm	0:9b334a45a8ff	238	===============================================================================
bogdanm	0:9b334a45a8ff	239	##### Initialization and de-initialization functions #####
bogdanm	0:9b334a45a8ff	240	===============================================================================
bogdanm	0:9b334a45a8ff	241	[..] This subsection provides a set of functions allowing to initialize and
bogdanm	0:9b334a45a8ff	242	de-initialize the SAIx peripheral:
bogdanm	0:9b334a45a8ff	243
bogdanm	0:9b334a45a8ff	244	(+) User must implement HAL_SAI_MspInit() function in which he configures
bogdanm	0:9b334a45a8ff	245	all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
bogdanm	0:9b334a45a8ff	246
bogdanm	0:9b334a45a8ff	247	(+) Call the function HAL_SAI_Init() to configure the selected device with
bogdanm	0:9b334a45a8ff	248	the selected configuration:
bogdanm	0:9b334a45a8ff	249	(++) Mode (Master/slave TX/RX)
bogdanm	0:9b334a45a8ff	250	(++) Protocol
bogdanm	0:9b334a45a8ff	251	(++) Data Size
bogdanm	0:9b334a45a8ff	252	(++) MCLK Output
bogdanm	0:9b334a45a8ff	253	(++) Audio frequency
bogdanm	0:9b334a45a8ff	254	(++) FIFO Threshold
bogdanm	0:9b334a45a8ff	255	(++) Frame Config
bogdanm	0:9b334a45a8ff	256	(++) Slot Config
bogdanm	0:9b334a45a8ff	257
bogdanm	0:9b334a45a8ff	258	(+) Call the function HAL_SAI_DeInit() to restore the default configuration
bogdanm	0:9b334a45a8ff	259	of the selected SAI peripheral.
bogdanm	0:9b334a45a8ff	260
bogdanm	0:9b334a45a8ff	261	@endverbatim
bogdanm	0:9b334a45a8ff	262	* @{
bogdanm	0:9b334a45a8ff	263	*/
bogdanm	0:9b334a45a8ff	264
bogdanm	0:9b334a45a8ff	265	/**
bogdanm	0:9b334a45a8ff	266	* @brief Initializes the structure FrameInit, SlotInit and the low part of
bogdanm	0:9b334a45a8ff	267	* Init according to the specified parameters and call the function
bogdanm	0:9b334a45a8ff	268	* HAL_SAI_Init to initialize the SAI block.
bogdanm	0:9b334a45a8ff	269	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	270	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	271	* @param protocol : one of the supported protocol @ref SAI_Protocol
bogdanm	0:9b334a45a8ff	272	* @param datasize : one of the supported datasize @ref SAI_Protocol_DataSize
bogdanm	0:9b334a45a8ff	273	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	274	* @param nbslot : Number of slot.
bogdanm	0:9b334a45a8ff	275	* @retval HAL status
bogdanm	0:9b334a45a8ff	276	*/
bogdanm	0:9b334a45a8ff	277	HAL_StatusTypeDef HAL_SAI_InitProtocol(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot)
bogdanm	0:9b334a45a8ff	278	{
bogdanm	0:9b334a45a8ff	279	HAL_StatusTypeDef status = HAL_OK;
bogdanm	0:9b334a45a8ff	280
bogdanm	0:9b334a45a8ff	281	/* Check the parameters */
bogdanm	0:9b334a45a8ff	282	assert_param(IS_SAI_SUPPORTED_PROTOCOL(protocol));
bogdanm	0:9b334a45a8ff	283	assert_param(IS_SAI_PROTOCOL_DATASIZE(datasize));
bogdanm	0:9b334a45a8ff	284
bogdanm	0:9b334a45a8ff	285	switch(protocol)
bogdanm	0:9b334a45a8ff	286	{
bogdanm	0:9b334a45a8ff	287	case SAI_I2S_STANDARD :
bogdanm	0:9b334a45a8ff	288	case SAI_I2S_MSBJUSTIFIED :
bogdanm	0:9b334a45a8ff	289	case SAI_I2S_LSBJUSTIFIED :
bogdanm	0:9b334a45a8ff	290	status = SAI_InitI2S(hsai, protocol, datasize, nbslot);
bogdanm	0:9b334a45a8ff	291	break;
bogdanm	0:9b334a45a8ff	292	case SAI_PCM_LONG :
bogdanm	0:9b334a45a8ff	293	case SAI_PCM_SHORT :
bogdanm	0:9b334a45a8ff	294	status = SAI_InitPCM(hsai, protocol, datasize, nbslot);
bogdanm	0:9b334a45a8ff	295	break;
bogdanm	0:9b334a45a8ff	296	default :
bogdanm	0:9b334a45a8ff	297	status = HAL_ERROR;
bogdanm	0:9b334a45a8ff	298	break;
bogdanm	0:9b334a45a8ff	299	}
bogdanm	0:9b334a45a8ff	300
bogdanm	0:9b334a45a8ff	301	if(status == HAL_OK)
bogdanm	0:9b334a45a8ff	302	{
bogdanm	0:9b334a45a8ff	303	status = HAL_SAI_Init(hsai);
bogdanm	0:9b334a45a8ff	304	}
bogdanm	0:9b334a45a8ff	305
bogdanm	0:9b334a45a8ff	306	return status;
bogdanm	0:9b334a45a8ff	307	}
bogdanm	0:9b334a45a8ff	308
bogdanm	0:9b334a45a8ff	309	/**
bogdanm	0:9b334a45a8ff	310	* @brief Initializes the SAI according to the specified parameters
bogdanm	0:9b334a45a8ff	311	* in the SAI_InitTypeDef and create the associated handle.
bogdanm	0:9b334a45a8ff	312	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	313	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	314	* @retval HAL status
bogdanm	0:9b334a45a8ff	315	*/
bogdanm	0:9b334a45a8ff	316	HAL_StatusTypeDef HAL_SAI_Init(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	317	{
bogdanm	0:9b334a45a8ff	318	uint32_t tmpclock = 0;
bogdanm	0:9b334a45a8ff	319
bogdanm	0:9b334a45a8ff	320	/* This variable used to store the SAI_CK_x (value in Hz) */
bogdanm	0:9b334a45a8ff	321	uint32_t freq = 0;
bogdanm	0:9b334a45a8ff	322
bogdanm	0:9b334a45a8ff	323	/* Check the SAI handle allocation */
bogdanm	0:9b334a45a8ff	324	if(hsai == NULL)
bogdanm	0:9b334a45a8ff	325	{
bogdanm	0:9b334a45a8ff	326	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	327	}
bogdanm	0:9b334a45a8ff	328
bogdanm	0:9b334a45a8ff	329	/* Check the SAI Block parameters */
bogdanm	0:9b334a45a8ff	330	assert_param(IS_SAI_AUDIO_FREQUENCY(hsai->Init.AudioFrequency));
bogdanm	0:9b334a45a8ff	331	assert_param(IS_SAI_BLOCK_PROTOCOL(hsai->Init.Protocol));
bogdanm	0:9b334a45a8ff	332	assert_param(IS_SAI_BLOCK_MODE(hsai->Init.AudioMode));
bogdanm	0:9b334a45a8ff	333	assert_param(IS_SAI_BLOCK_SYNCEXT(hsai->Init.SynchroExt));
bogdanm	0:9b334a45a8ff	334	assert_param(IS_SAI_BLOCK_DATASIZE(hsai->Init.DataSize));
bogdanm	0:9b334a45a8ff	335	assert_param(IS_SAI_BLOCK_FIRST_BIT(hsai->Init.FirstBit));
bogdanm	0:9b334a45a8ff	336	assert_param(IS_SAI_BLOCK_CLOCK_STROBING(hsai->Init.ClockStrobing));
bogdanm	0:9b334a45a8ff	337	assert_param(IS_SAI_BLOCK_SYNCHRO(hsai->Init.Synchro));
bogdanm	0:9b334a45a8ff	338	assert_param(IS_SAI_BLOCK_OUTPUT_DRIVE(hsai->Init.OutputDrive));
bogdanm	0:9b334a45a8ff	339	assert_param(IS_SAI_BLOCK_NODIVIDER(hsai->Init.NoDivider));
bogdanm	0:9b334a45a8ff	340	assert_param(IS_SAI_BLOCK_FIFO_THRESHOLD(hsai->Init.FIFOThreshold));
bogdanm	0:9b334a45a8ff	341	assert_param(IS_SAI_MONO_STEREO_MODE(hsai->Init.MonoStereoMode));
bogdanm	0:9b334a45a8ff	342	assert_param(IS_SAI_BLOCK_COMPANDING_MODE(hsai->Init.CompandingMode));
bogdanm	0:9b334a45a8ff	343	assert_param(IS_SAI_BLOCK_TRISTATE_MANAGEMENT(hsai->Init.TriState));
bogdanm	0:9b334a45a8ff	344
bogdanm	0:9b334a45a8ff	345	/* Check the SAI Block Frame parameters */
bogdanm	0:9b334a45a8ff	346	assert_param(IS_SAI_BLOCK_FRAME_LENGTH(hsai->FrameInit.FrameLength));
bogdanm	0:9b334a45a8ff	347	assert_param(IS_SAI_BLOCK_ACTIVE_FRAME(hsai->FrameInit.ActiveFrameLength));
bogdanm	0:9b334a45a8ff	348	assert_param(IS_SAI_BLOCK_FS_DEFINITION(hsai->FrameInit.FSDefinition));
bogdanm	0:9b334a45a8ff	349	assert_param(IS_SAI_BLOCK_FS_POLARITY(hsai->FrameInit.FSPolarity));
bogdanm	0:9b334a45a8ff	350	assert_param(IS_SAI_BLOCK_FS_OFFSET(hsai->FrameInit.FSOffset));
bogdanm	0:9b334a45a8ff	351
bogdanm	0:9b334a45a8ff	352	/* Check the SAI Block Slot parameters */
bogdanm	0:9b334a45a8ff	353	assert_param(IS_SAI_BLOCK_FIRSTBIT_OFFSET(hsai->SlotInit.FirstBitOffset));
bogdanm	0:9b334a45a8ff	354	assert_param(IS_SAI_BLOCK_SLOT_SIZE(hsai->SlotInit.SlotSize));
bogdanm	0:9b334a45a8ff	355	assert_param(IS_SAI_BLOCK_SLOT_NUMBER(hsai->SlotInit.SlotNumber));
bogdanm	0:9b334a45a8ff	356	assert_param(IS_SAI_SLOT_ACTIVE(hsai->SlotInit.SlotActive));
bogdanm	0:9b334a45a8ff	357
bogdanm	0:9b334a45a8ff	358	if(hsai->State == HAL_SAI_STATE_RESET)
bogdanm	0:9b334a45a8ff	359	{
bogdanm	0:9b334a45a8ff	360	/* Allocate lock resource and initialize it */
bogdanm	0:9b334a45a8ff	361	hsai->Lock = HAL_UNLOCKED;
bogdanm	0:9b334a45a8ff	362
bogdanm	0:9b334a45a8ff	363	/* Init the low level hardware : GPIO, CLOCK, NVIC and DMA */
bogdanm	0:9b334a45a8ff	364	HAL_SAI_MspInit(hsai);
bogdanm	0:9b334a45a8ff	365	}
bogdanm	0:9b334a45a8ff	366
bogdanm	0:9b334a45a8ff	367	hsai->State = HAL_SAI_STATE_BUSY;
bogdanm	0:9b334a45a8ff	368
bogdanm	0:9b334a45a8ff	369	/* Disable the selected SAI peripheral */
bogdanm	0:9b334a45a8ff	370	SAI_Disable(hsai);
bogdanm	0:9b334a45a8ff	371
bogdanm	0:9b334a45a8ff	372	/* SAI Block Synchro Configuration -----------------------------------------*/
bogdanm	0:9b334a45a8ff	373	SAI_BlockSynchroConfig(hsai);
bogdanm	0:9b334a45a8ff	374
bogdanm	0:9b334a45a8ff	375	/* Configure Master Clock using the following formula :
bogdanm	0:9b334a45a8ff	376	MCLK_x = SAI_CK_x / (MCKDIV[3:0] * 2) with MCLK_x = 256 * FS
bogdanm	0:9b334a45a8ff	377	FS = SAI_CK_x / (MCKDIV[3:0] * 2) * 256
bogdanm	0:9b334a45a8ff	378	MCKDIV[3:0] = SAI_CK_x / FS * 512 */
bogdanm	0:9b334a45a8ff	379	if(hsai->Init.AudioFrequency != SAI_AUDIO_FREQUENCY_MCKDIV)
bogdanm	0:9b334a45a8ff	380	{
bogdanm	0:9b334a45a8ff	381	/* Get SAI clock source based on Source clock selection from RCC */
bogdanm	0:9b334a45a8ff	382	freq = SAI_GetInputClock(hsai);
bogdanm	0:9b334a45a8ff	383
bogdanm	0:9b334a45a8ff	384	/* (saiclocksource x 10) to keep Significant digits */
bogdanm	0:9b334a45a8ff	385	tmpclock = (((freq * 10) / ((hsai->Init.AudioFrequency) * 512)));
bogdanm	0:9b334a45a8ff	386
bogdanm	0:9b334a45a8ff	387	hsai->Init.Mckdiv = tmpclock / 10;
bogdanm	0:9b334a45a8ff	388
bogdanm	0:9b334a45a8ff	389	/* Round result to the nearest integer */
bogdanm	0:9b334a45a8ff	390	if((tmpclock % 10) > 8)
bogdanm	0:9b334a45a8ff	391	{
bogdanm	0:9b334a45a8ff	392	hsai->Init.Mckdiv+= 1;
bogdanm	0:9b334a45a8ff	393	}
bogdanm	0:9b334a45a8ff	394	}
bogdanm	0:9b334a45a8ff	395
bogdanm	0:9b334a45a8ff	396	/* SAI Block Configuration ------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	397	/* SAI CR1 Configuration */
bogdanm	0:9b334a45a8ff	398	hsai->Instance->CR1&=~(SAI_xCR1_MODE \| SAI_xCR1_PRTCFG \| SAI_xCR1_DS \| \
bogdanm	0:9b334a45a8ff	399	SAI_xCR1_LSBFIRST \| SAI_xCR1_CKSTR \| SAI_xCR1_SYNCEN \|\
bogdanm	0:9b334a45a8ff	400	SAI_xCR1_MONO \| SAI_xCR1_OUTDRIV \| SAI_xCR1_DMAEN \| \
bogdanm	0:9b334a45a8ff	401	SAI_xCR1_NODIV \| SAI_xCR1_MCKDIV);
bogdanm	0:9b334a45a8ff	402
bogdanm	0:9b334a45a8ff	403	hsai->Instance->CR1\|= (hsai->Init.AudioMode \| hsai->Init.Protocol \| \
bogdanm	0:9b334a45a8ff	404	hsai->Init.DataSize \| hsai->Init.FirstBit \| \
bogdanm	0:9b334a45a8ff	405	hsai->Init.ClockStrobing \| hsai->Init.Synchro \| \
bogdanm	0:9b334a45a8ff	406	hsai->Init.MonoStereoMode \| hsai->Init.OutputDrive \| \
bogdanm	0:9b334a45a8ff	407	hsai->Init.NoDivider \| (hsai->Init.Mckdiv << 20) \| hsai->Init.CompandingMode);
bogdanm	0:9b334a45a8ff	408
bogdanm	0:9b334a45a8ff	409	/* SAI CR2 Configuration */
bogdanm	0:9b334a45a8ff	410	hsai->Instance->CR2&= ~(SAI_xCR2_FTH \| SAI_xCR2_FFLUSH \| SAI_xCR2_COMP);
bogdanm	0:9b334a45a8ff	411	hsai->Instance->CR2\|= (hsai->Init.FIFOThreshold \| hsai->Init.CompandingMode \| hsai->Init.TriState);
bogdanm	0:9b334a45a8ff	412
bogdanm	0:9b334a45a8ff	413
bogdanm	0:9b334a45a8ff	414	/* SAI Frame Configuration -----------------------------------------*/
bogdanm	0:9b334a45a8ff	415	hsai->Instance->FRCR&=(~(SAI_xFRCR_FRL \| SAI_xFRCR_FSALL \| SAI_xFRCR_FSDEF \| \
bogdanm	0:9b334a45a8ff	416	SAI_xFRCR_FSPO \| SAI_xFRCR_FSOFF));
bogdanm	0:9b334a45a8ff	417	hsai->Instance->FRCR\|=((hsai->FrameInit.FrameLength - 1) \|
bogdanm	0:9b334a45a8ff	418	hsai->FrameInit.FSOffset \|
bogdanm	0:9b334a45a8ff	419	hsai->FrameInit.FSDefinition \|
bogdanm	0:9b334a45a8ff	420	hsai->FrameInit.FSPolarity \|
bogdanm	0:9b334a45a8ff	421	((hsai->FrameInit.ActiveFrameLength - 1) << 8));
bogdanm	0:9b334a45a8ff	422
bogdanm	0:9b334a45a8ff	423	/* SAI Block_x SLOT Configuration ------------------------------------------*/
mbed_official	19:112740acecfa	424	/* This register has no meaning in AC 97 and SPDIF audio protocol */
bogdanm	0:9b334a45a8ff	425	hsai->Instance->SLOTR&= (~(SAI_xSLOTR_FBOFF \| SAI_xSLOTR_SLOTSZ \| \
bogdanm	0:9b334a45a8ff	426	SAI_xSLOTR_NBSLOT \| SAI_xSLOTR_SLOTEN ));
bogdanm	0:9b334a45a8ff	427
bogdanm	0:9b334a45a8ff	428	hsai->Instance->SLOTR\|= hsai->SlotInit.FirstBitOffset \| hsai->SlotInit.SlotSize
bogdanm	0:9b334a45a8ff	429	\| hsai->SlotInit.SlotActive \| ((hsai->SlotInit.SlotNumber - 1) << 8);
bogdanm	0:9b334a45a8ff	430
bogdanm	0:9b334a45a8ff	431	/* Initialise the error code */
bogdanm	0:9b334a45a8ff	432	hsai->ErrorCode = HAL_SAI_ERROR_NONE;
bogdanm	0:9b334a45a8ff	433
bogdanm	0:9b334a45a8ff	434	/* Initialize the SAI state */
bogdanm	0:9b334a45a8ff	435	hsai->State= HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	436
bogdanm	0:9b334a45a8ff	437	/* Release Lock */
bogdanm	0:9b334a45a8ff	438	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	439
bogdanm	0:9b334a45a8ff	440	return HAL_OK;
bogdanm	0:9b334a45a8ff	441	}
bogdanm	0:9b334a45a8ff	442
bogdanm	0:9b334a45a8ff	443	/**
bogdanm	0:9b334a45a8ff	444	* @brief DeInitializes the SAI peripheral.
bogdanm	0:9b334a45a8ff	445	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	446	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	447	* @retval HAL status
bogdanm	0:9b334a45a8ff	448	*/
bogdanm	0:9b334a45a8ff	449	HAL_StatusTypeDef HAL_SAI_DeInit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	450	{
bogdanm	0:9b334a45a8ff	451	/* Check the SAI handle allocation */
bogdanm	0:9b334a45a8ff	452	if(hsai == NULL)
bogdanm	0:9b334a45a8ff	453	{
bogdanm	0:9b334a45a8ff	454	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	455	}
bogdanm	0:9b334a45a8ff	456
bogdanm	0:9b334a45a8ff	457	hsai->State = HAL_SAI_STATE_BUSY;
bogdanm	0:9b334a45a8ff	458
bogdanm	0:9b334a45a8ff	459	/* Disabled All interrupt and clear all the flag */
bogdanm	0:9b334a45a8ff	460	hsai->Instance->IMR = 0;
bogdanm	0:9b334a45a8ff	461	hsai->Instance->CLRFR = 0xFFFFFFFF;
bogdanm	0:9b334a45a8ff	462
bogdanm	0:9b334a45a8ff	463	/* Disable the SAI */
bogdanm	0:9b334a45a8ff	464	SAI_Disable(hsai);
bogdanm	0:9b334a45a8ff	465
bogdanm	0:9b334a45a8ff	466	/* Flush the fifo */
bogdanm	0:9b334a45a8ff	467	SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH);
bogdanm	0:9b334a45a8ff	468
bogdanm	0:9b334a45a8ff	469	/* DeInit the low level hardware: GPIO, CLOCK, NVIC and DMA */
bogdanm	0:9b334a45a8ff	470	HAL_SAI_MspDeInit(hsai);
bogdanm	0:9b334a45a8ff	471
bogdanm	0:9b334a45a8ff	472	/* Initialize the error code */
bogdanm	0:9b334a45a8ff	473	hsai->ErrorCode = HAL_SAI_ERROR_NONE;
bogdanm	0:9b334a45a8ff	474
bogdanm	0:9b334a45a8ff	475	/* Initialize the SAI state */
bogdanm	0:9b334a45a8ff	476	hsai->State = HAL_SAI_STATE_RESET;
bogdanm	0:9b334a45a8ff	477
bogdanm	0:9b334a45a8ff	478	/* Release Lock */
bogdanm	0:9b334a45a8ff	479	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	480
bogdanm	0:9b334a45a8ff	481	return HAL_OK;
bogdanm	0:9b334a45a8ff	482	}
bogdanm	0:9b334a45a8ff	483
bogdanm	0:9b334a45a8ff	484	/**
bogdanm	0:9b334a45a8ff	485	* @brief SAI MSP Init.
bogdanm	0:9b334a45a8ff	486	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	487	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	488	* @retval None
bogdanm	0:9b334a45a8ff	489	*/
bogdanm	0:9b334a45a8ff	490	__weak void HAL_SAI_MspInit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	491	{
bogdanm	0:9b334a45a8ff	492	/* NOTE : This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	493	the HAL_SAI_MspInit could be implemented in the user file
bogdanm	0:9b334a45a8ff	494	*/
bogdanm	0:9b334a45a8ff	495	}
bogdanm	0:9b334a45a8ff	496
bogdanm	0:9b334a45a8ff	497	/**
bogdanm	0:9b334a45a8ff	498	* @brief SAI MSP DeInit.
bogdanm	0:9b334a45a8ff	499	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	500	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	501	* @retval None
bogdanm	0:9b334a45a8ff	502	*/
bogdanm	0:9b334a45a8ff	503	__weak void HAL_SAI_MspDeInit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	504	{
bogdanm	0:9b334a45a8ff	505	/* NOTE : This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	506	the HAL_SAI_MspDeInit could be implemented in the user file
bogdanm	0:9b334a45a8ff	507	*/
bogdanm	0:9b334a45a8ff	508	}
bogdanm	0:9b334a45a8ff	509
bogdanm	0:9b334a45a8ff	510	/**
bogdanm	0:9b334a45a8ff	511	* @}
bogdanm	0:9b334a45a8ff	512	*/
bogdanm	0:9b334a45a8ff	513
bogdanm	0:9b334a45a8ff	514	/** @defgroup SAI_Exported_Functions_Group2 IO operation functions
bogdanm	0:9b334a45a8ff	515	* @brief Data transfers functions
bogdanm	0:9b334a45a8ff	516	*
bogdanm	0:9b334a45a8ff	517	@verbatim
bogdanm	0:9b334a45a8ff	518	===============================================================================
bogdanm	0:9b334a45a8ff	519	##### IO operation functions #####
bogdanm	0:9b334a45a8ff	520	===============================================================================
bogdanm	0:9b334a45a8ff	521	[..]
bogdanm	0:9b334a45a8ff	522	This subsection provides a set of functions allowing to manage the SAI data
bogdanm	0:9b334a45a8ff	523	transfers.
bogdanm	0:9b334a45a8ff	524
bogdanm	0:9b334a45a8ff	525	(+) There are two modes of transfer:
bogdanm	0:9b334a45a8ff	526	(++) Blocking mode : The communication is performed in the polling mode.
bogdanm	0:9b334a45a8ff	527	The status of all data processing is returned by the same function
bogdanm	0:9b334a45a8ff	528	after finishing transfer.
bogdanm	0:9b334a45a8ff	529	(++) No-Blocking mode : The communication is performed using Interrupts
bogdanm	0:9b334a45a8ff	530	or DMA. These functions return the status of the transfer startup.
bogdanm	0:9b334a45a8ff	531	The end of the data processing will be indicated through the
bogdanm	0:9b334a45a8ff	532	dedicated SAI IRQ when using Interrupt mode or the DMA IRQ when
bogdanm	0:9b334a45a8ff	533	using DMA mode.
bogdanm	0:9b334a45a8ff	534
bogdanm	0:9b334a45a8ff	535	(+) Blocking mode functions are :
bogdanm	0:9b334a45a8ff	536	(++) HAL_SAI_Transmit()
bogdanm	0:9b334a45a8ff	537	(++) HAL_SAI_Receive()
bogdanm	0:9b334a45a8ff	538	(++) HAL_SAI_TransmitReceive()
bogdanm	0:9b334a45a8ff	539
bogdanm	0:9b334a45a8ff	540	(+) Non Blocking mode functions with Interrupt are :
bogdanm	0:9b334a45a8ff	541	(++) HAL_SAI_Transmit_IT()
bogdanm	0:9b334a45a8ff	542	(++) HAL_SAI_Receive_IT()
bogdanm	0:9b334a45a8ff	543	(++) HAL_SAI_TransmitReceive_IT()
bogdanm	0:9b334a45a8ff	544
bogdanm	0:9b334a45a8ff	545	(+) Non Blocking mode functions with DMA are :
bogdanm	0:9b334a45a8ff	546	(++) HAL_SAI_Transmit_DMA()
bogdanm	0:9b334a45a8ff	547	(++) HAL_SAI_Receive_DMA()
bogdanm	0:9b334a45a8ff	548	(++) HAL_SAI_TransmitReceive_DMA()
bogdanm	0:9b334a45a8ff	549
bogdanm	0:9b334a45a8ff	550	(+) A set of Transfer Complete Callbacks are provided in non Blocking mode:
bogdanm	0:9b334a45a8ff	551	(++) HAL_SAI_TxCpltCallback()
bogdanm	0:9b334a45a8ff	552	(++) HAL_SAI_RxCpltCallback()
bogdanm	0:9b334a45a8ff	553	(++) HAL_SAI_ErrorCallback()
bogdanm	0:9b334a45a8ff	554
bogdanm	0:9b334a45a8ff	555	@endverbatim
bogdanm	0:9b334a45a8ff	556	* @{
bogdanm	0:9b334a45a8ff	557	*/
bogdanm	0:9b334a45a8ff	558
bogdanm	0:9b334a45a8ff	559	/**
bogdanm	0:9b334a45a8ff	560	* @brief Transmits an amount of data in blocking mode.
bogdanm	0:9b334a45a8ff	561	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	562	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	563	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	564	* @param Size: Amount of data to be sent
bogdanm	0:9b334a45a8ff	565	* @param Timeout: Timeout duration
bogdanm	0:9b334a45a8ff	566	* @retval HAL status
bogdanm	0:9b334a45a8ff	567	*/
bogdanm	0:9b334a45a8ff	568	HAL_StatusTypeDef HAL_SAI_Transmit(SAI_HandleTypeDef hsai, uint8_t pData, uint16_t Size, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	569	{
bogdanm	0:9b334a45a8ff	570	uint32_t tickstart = 0;
bogdanm	0:9b334a45a8ff	571
bogdanm	0:9b334a45a8ff	572	if((pData == NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	573	{
bogdanm	0:9b334a45a8ff	574	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	575	}
bogdanm	0:9b334a45a8ff	576
bogdanm	0:9b334a45a8ff	577	if(hsai->State == HAL_SAI_STATE_READY)
bogdanm	0:9b334a45a8ff	578	{
bogdanm	0:9b334a45a8ff	579	/* Process Locked */
bogdanm	0:9b334a45a8ff	580	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	581
bogdanm	0:9b334a45a8ff	582	hsai->State = HAL_SAI_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	583	hsai->ErrorCode = HAL_SAI_ERROR_NONE;
bogdanm	0:9b334a45a8ff	584	hsai->XferSize = Size;
bogdanm	0:9b334a45a8ff	585	hsai->XferCount = Size;
bogdanm	0:9b334a45a8ff	586	hsai->pBuffPtr = pData;
bogdanm	0:9b334a45a8ff	587
bogdanm	0:9b334a45a8ff	588	/* Check if the SAI is already enabled */
bogdanm	0:9b334a45a8ff	589	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
bogdanm	0:9b334a45a8ff	590	{
bogdanm	0:9b334a45a8ff	591	/* fill the fifo with data before to enabled the SAI */
bogdanm	0:9b334a45a8ff	592	SAI_FillFifo(hsai);
bogdanm	0:9b334a45a8ff	593	/* Enable SAI peripheral */
bogdanm	0:9b334a45a8ff	594	__HAL_SAI_ENABLE(hsai);
bogdanm	0:9b334a45a8ff	595	}
bogdanm	0:9b334a45a8ff	596
bogdanm	0:9b334a45a8ff	597	while(hsai->XferCount > 0)
bogdanm	0:9b334a45a8ff	598	{
bogdanm	0:9b334a45a8ff	599	/* Write data if the FIFO is not full */
bogdanm	0:9b334a45a8ff	600	if((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_FULL)
bogdanm	0:9b334a45a8ff	601	{
bogdanm	0:9b334a45a8ff	602	if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
bogdanm	0:9b334a45a8ff	603	{
bogdanm	0:9b334a45a8ff	604	hsai->Instance->DR = (*hsai->pBuffPtr++);
bogdanm	0:9b334a45a8ff	605	}
bogdanm	0:9b334a45a8ff	606	else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
bogdanm	0:9b334a45a8ff	607	{
bogdanm	0:9b334a45a8ff	608	hsai->Instance->DR = ((uint16_t )hsai->pBuffPtr);
bogdanm	0:9b334a45a8ff	609	hsai->pBuffPtr+= 2;
bogdanm	0:9b334a45a8ff	610	}
bogdanm	0:9b334a45a8ff	611	else
bogdanm	0:9b334a45a8ff	612	{
bogdanm	0:9b334a45a8ff	613	hsai->Instance->DR = ((uint32_t )hsai->pBuffPtr);
bogdanm	0:9b334a45a8ff	614	hsai->pBuffPtr+= 4;
bogdanm	0:9b334a45a8ff	615	}
bogdanm	0:9b334a45a8ff	616	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	617	}
bogdanm	0:9b334a45a8ff	618	else
bogdanm	0:9b334a45a8ff	619	{
bogdanm	0:9b334a45a8ff	620	/* Get tick */
bogdanm	0:9b334a45a8ff	621	tickstart = HAL_GetTick();
bogdanm	0:9b334a45a8ff	622	/* Check for the Timeout */
bogdanm	0:9b334a45a8ff	623	if(Timeout != HAL_MAX_DELAY)
bogdanm	0:9b334a45a8ff	624	{
bogdanm	0:9b334a45a8ff	625	if((Timeout == 0)\|\|((HAL_GetTick() - tickstart ) > Timeout))
bogdanm	0:9b334a45a8ff	626	{
bogdanm	0:9b334a45a8ff	627	/* Update error code */
bogdanm	0:9b334a45a8ff	628	hsai->ErrorCode \|= HAL_SAI_ERROR_TIMEOUT;
bogdanm	0:9b334a45a8ff	629
bogdanm	0:9b334a45a8ff	630	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	631	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	632
bogdanm	0:9b334a45a8ff	633	/* Change the SAI state */
bogdanm	0:9b334a45a8ff	634	hsai->State = HAL_SAI_STATE_TIMEOUT;
bogdanm	0:9b334a45a8ff	635
bogdanm	0:9b334a45a8ff	636	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	637	}
bogdanm	0:9b334a45a8ff	638	}
bogdanm	0:9b334a45a8ff	639	}
bogdanm	0:9b334a45a8ff	640	}
bogdanm	0:9b334a45a8ff	641
bogdanm	0:9b334a45a8ff	642	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	643
bogdanm	0:9b334a45a8ff	644	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	645	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	646
bogdanm	0:9b334a45a8ff	647	return HAL_OK;
bogdanm	0:9b334a45a8ff	648	}
bogdanm	0:9b334a45a8ff	649	else
bogdanm	0:9b334a45a8ff	650	{
bogdanm	0:9b334a45a8ff	651	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	652	}
bogdanm	0:9b334a45a8ff	653	}
bogdanm	0:9b334a45a8ff	654
bogdanm	0:9b334a45a8ff	655	/**
bogdanm	0:9b334a45a8ff	656	* @brief Receives an amount of data in blocking mode.
bogdanm	0:9b334a45a8ff	657	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	658	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	659	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	660	* @param Size: Amount of data to be received
bogdanm	0:9b334a45a8ff	661	* @param Timeout: Timeout duration
bogdanm	0:9b334a45a8ff	662	* @retval HAL status
bogdanm	0:9b334a45a8ff	663	*/
bogdanm	0:9b334a45a8ff	664	HAL_StatusTypeDef HAL_SAI_Receive(SAI_HandleTypeDef hsai, uint8_t pData, uint16_t Size, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	665	{
bogdanm	0:9b334a45a8ff	666	uint32_t tickstart = 0;
bogdanm	0:9b334a45a8ff	667
bogdanm	0:9b334a45a8ff	668	if((pData == NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	669	{
bogdanm	0:9b334a45a8ff	670	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	671	}
bogdanm	0:9b334a45a8ff	672
bogdanm	0:9b334a45a8ff	673	if(hsai->State == HAL_SAI_STATE_READY)
bogdanm	0:9b334a45a8ff	674	{
bogdanm	0:9b334a45a8ff	675	/* Process Locked */
bogdanm	0:9b334a45a8ff	676	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	677
bogdanm	0:9b334a45a8ff	678	hsai->State = HAL_SAI_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	679	hsai->ErrorCode = HAL_SAI_ERROR_NONE;
bogdanm	0:9b334a45a8ff	680	hsai->pBuffPtr = pData;
bogdanm	0:9b334a45a8ff	681	hsai->XferSize = Size;
bogdanm	0:9b334a45a8ff	682	hsai->XferCount = Size;
bogdanm	0:9b334a45a8ff	683
bogdanm	0:9b334a45a8ff	684	/* Check if the SAI is already enabled */
bogdanm	0:9b334a45a8ff	685	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
bogdanm	0:9b334a45a8ff	686	{
bogdanm	0:9b334a45a8ff	687	/* Enable SAI peripheral */
bogdanm	0:9b334a45a8ff	688	__HAL_SAI_ENABLE(hsai);
bogdanm	0:9b334a45a8ff	689	}
bogdanm	0:9b334a45a8ff	690
bogdanm	0:9b334a45a8ff	691	/* Receive data */
bogdanm	0:9b334a45a8ff	692	while(hsai->XferCount > 0)
bogdanm	0:9b334a45a8ff	693	{
bogdanm	0:9b334a45a8ff	694
bogdanm	0:9b334a45a8ff	695	if((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_EMPTY)
bogdanm	0:9b334a45a8ff	696	{
bogdanm	0:9b334a45a8ff	697	if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
bogdanm	0:9b334a45a8ff	698	{
bogdanm	0:9b334a45a8ff	699	(*hsai->pBuffPtr++) = hsai->Instance->DR;
bogdanm	0:9b334a45a8ff	700	}
bogdanm	0:9b334a45a8ff	701	else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
bogdanm	0:9b334a45a8ff	702	{
bogdanm	0:9b334a45a8ff	703	((uint16_t)hsai->pBuffPtr) = hsai->Instance->DR;
bogdanm	0:9b334a45a8ff	704	hsai->pBuffPtr+= 2;
bogdanm	0:9b334a45a8ff	705	}
bogdanm	0:9b334a45a8ff	706	else
bogdanm	0:9b334a45a8ff	707	{
bogdanm	0:9b334a45a8ff	708	((uint32_t)hsai->pBuffPtr) = hsai->Instance->DR;
bogdanm	0:9b334a45a8ff	709	hsai->pBuffPtr+= 4;
bogdanm	0:9b334a45a8ff	710	}
bogdanm	0:9b334a45a8ff	711	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	712	}
bogdanm	0:9b334a45a8ff	713	else
bogdanm	0:9b334a45a8ff	714	{
bogdanm	0:9b334a45a8ff	715	/* Get tick */
bogdanm	0:9b334a45a8ff	716	tickstart = HAL_GetTick();
bogdanm	0:9b334a45a8ff	717	/* Check for the Timeout */
bogdanm	0:9b334a45a8ff	718	if(Timeout != HAL_MAX_DELAY)
bogdanm	0:9b334a45a8ff	719	{
bogdanm	0:9b334a45a8ff	720	if((Timeout == 0)\|\|((HAL_GetTick() - tickstart ) > Timeout))
bogdanm	0:9b334a45a8ff	721	{
bogdanm	0:9b334a45a8ff	722	/* Update error code */
bogdanm	0:9b334a45a8ff	723	hsai->ErrorCode \|= HAL_SAI_ERROR_TIMEOUT;
bogdanm	0:9b334a45a8ff	724
bogdanm	0:9b334a45a8ff	725	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	726	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	727
bogdanm	0:9b334a45a8ff	728	/* Change the SAI state */
bogdanm	0:9b334a45a8ff	729	hsai->State = HAL_SAI_STATE_TIMEOUT;
bogdanm	0:9b334a45a8ff	730
bogdanm	0:9b334a45a8ff	731	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	732	}
bogdanm	0:9b334a45a8ff	733	}
bogdanm	0:9b334a45a8ff	734	}
bogdanm	0:9b334a45a8ff	735	}
bogdanm	0:9b334a45a8ff	736
bogdanm	0:9b334a45a8ff	737	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	738
bogdanm	0:9b334a45a8ff	739	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	740	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	741
bogdanm	0:9b334a45a8ff	742	return HAL_OK;
bogdanm	0:9b334a45a8ff	743	}
bogdanm	0:9b334a45a8ff	744	else
bogdanm	0:9b334a45a8ff	745	{
bogdanm	0:9b334a45a8ff	746	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	747	}
bogdanm	0:9b334a45a8ff	748	}
bogdanm	0:9b334a45a8ff	749
bogdanm	0:9b334a45a8ff	750	/**
bogdanm	0:9b334a45a8ff	751	* @brief Transmits an amount of data in no-blocking mode with Interrupt.
bogdanm	0:9b334a45a8ff	752	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	753	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	754	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	755	* @param Size: Amount of data to be sent
bogdanm	0:9b334a45a8ff	756	* @retval HAL status
bogdanm	0:9b334a45a8ff	757	*/
bogdanm	0:9b334a45a8ff	758	HAL_StatusTypeDef HAL_SAI_Transmit_IT(SAI_HandleTypeDef hsai, uint8_t pData, uint16_t Size)
bogdanm	0:9b334a45a8ff	759	{
bogdanm	0:9b334a45a8ff	760	if(hsai->State == HAL_SAI_STATE_READY)
bogdanm	0:9b334a45a8ff	761	{
bogdanm	0:9b334a45a8ff	762	if((pData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	763	{
bogdanm	0:9b334a45a8ff	764	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	765	}
bogdanm	0:9b334a45a8ff	766
bogdanm	0:9b334a45a8ff	767	hsai->pBuffPtr = pData;
bogdanm	0:9b334a45a8ff	768	hsai->XferSize = Size;
bogdanm	0:9b334a45a8ff	769	hsai->XferCount = Size;
bogdanm	0:9b334a45a8ff	770
bogdanm	0:9b334a45a8ff	771	/* Process Locked */
bogdanm	0:9b334a45a8ff	772	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	773
bogdanm	0:9b334a45a8ff	774	hsai->State = HAL_SAI_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	775
bogdanm	0:9b334a45a8ff	776	if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
bogdanm	0:9b334a45a8ff	777	{
bogdanm	0:9b334a45a8ff	778	hsai->InterruptServiceRoutine = SAI_Transmit_IT8Bit;
bogdanm	0:9b334a45a8ff	779	}
bogdanm	0:9b334a45a8ff	780	else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
bogdanm	0:9b334a45a8ff	781	{
bogdanm	0:9b334a45a8ff	782	hsai->InterruptServiceRoutine = SAI_Transmit_IT16Bit;
bogdanm	0:9b334a45a8ff	783	}
bogdanm	0:9b334a45a8ff	784	else
bogdanm	0:9b334a45a8ff	785	{
bogdanm	0:9b334a45a8ff	786	hsai->InterruptServiceRoutine = SAI_Transmit_IT32Bit;
bogdanm	0:9b334a45a8ff	787	}
bogdanm	0:9b334a45a8ff	788
bogdanm	0:9b334a45a8ff	789	/* Enable FRQ and OVRUDR interrupts */
bogdanm	0:9b334a45a8ff	790	__HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
bogdanm	0:9b334a45a8ff	791
bogdanm	0:9b334a45a8ff	792	/* Check if the SAI is already enabled */
bogdanm	0:9b334a45a8ff	793	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
bogdanm	0:9b334a45a8ff	794	{
bogdanm	0:9b334a45a8ff	795	/* Fill the fifo before starting the communication */
bogdanm	0:9b334a45a8ff	796	SAI_FillFifo(hsai);
bogdanm	0:9b334a45a8ff	797
bogdanm	0:9b334a45a8ff	798	/* Enable SAI peripheral */
bogdanm	0:9b334a45a8ff	799	__HAL_SAI_ENABLE(hsai);
bogdanm	0:9b334a45a8ff	800	}
bogdanm	0:9b334a45a8ff	801	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	802	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	803
bogdanm	0:9b334a45a8ff	804	return HAL_OK;
bogdanm	0:9b334a45a8ff	805	}
bogdanm	0:9b334a45a8ff	806	else
bogdanm	0:9b334a45a8ff	807	{
bogdanm	0:9b334a45a8ff	808	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	809	}
bogdanm	0:9b334a45a8ff	810	}
bogdanm	0:9b334a45a8ff	811
bogdanm	0:9b334a45a8ff	812	/**
bogdanm	0:9b334a45a8ff	813	* @brief Receives an amount of data in no-blocking mode with Interrupt.
bogdanm	0:9b334a45a8ff	814	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	815	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	816	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	817	* @param Size: Amount of data to be received
bogdanm	0:9b334a45a8ff	818	* @retval HAL status
bogdanm	0:9b334a45a8ff	819	*/
bogdanm	0:9b334a45a8ff	820	HAL_StatusTypeDef HAL_SAI_Receive_IT(SAI_HandleTypeDef hsai, uint8_t pData, uint16_t Size)
bogdanm	0:9b334a45a8ff	821	{
bogdanm	0:9b334a45a8ff	822
bogdanm	0:9b334a45a8ff	823	if(hsai->State == HAL_SAI_STATE_READY)
bogdanm	0:9b334a45a8ff	824	{
bogdanm	0:9b334a45a8ff	825	if((pData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	826	{
bogdanm	0:9b334a45a8ff	827	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	828	}
bogdanm	0:9b334a45a8ff	829
bogdanm	0:9b334a45a8ff	830	hsai->pBuffPtr = pData;
bogdanm	0:9b334a45a8ff	831	hsai->XferSize = Size;
bogdanm	0:9b334a45a8ff	832	hsai->XferCount = Size;
bogdanm	0:9b334a45a8ff	833
bogdanm	0:9b334a45a8ff	834	/* Process Locked */
bogdanm	0:9b334a45a8ff	835	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	836
bogdanm	0:9b334a45a8ff	837	hsai->State = HAL_SAI_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	838
bogdanm	0:9b334a45a8ff	839	if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
bogdanm	0:9b334a45a8ff	840	{
bogdanm	0:9b334a45a8ff	841	hsai->InterruptServiceRoutine = SAI_Receive_IT8Bit;
bogdanm	0:9b334a45a8ff	842	}
bogdanm	0:9b334a45a8ff	843	else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
bogdanm	0:9b334a45a8ff	844	{
bogdanm	0:9b334a45a8ff	845	hsai->InterruptServiceRoutine = SAI_Receive_IT16Bit;
bogdanm	0:9b334a45a8ff	846	}
bogdanm	0:9b334a45a8ff	847	else
bogdanm	0:9b334a45a8ff	848	{
bogdanm	0:9b334a45a8ff	849	hsai->InterruptServiceRoutine = SAI_Receive_IT32Bit;
bogdanm	0:9b334a45a8ff	850	}
bogdanm	0:9b334a45a8ff	851	/* Enable TXE and OVRUDR interrupts */
bogdanm	0:9b334a45a8ff	852	__HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
bogdanm	0:9b334a45a8ff	853
bogdanm	0:9b334a45a8ff	854	/* Check if the SAI is already enabled */
bogdanm	0:9b334a45a8ff	855	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
bogdanm	0:9b334a45a8ff	856	{
bogdanm	0:9b334a45a8ff	857	/* Enable SAI peripheral */
bogdanm	0:9b334a45a8ff	858	__HAL_SAI_ENABLE(hsai);
bogdanm	0:9b334a45a8ff	859	}
bogdanm	0:9b334a45a8ff	860
bogdanm	0:9b334a45a8ff	861	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	862	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	863
bogdanm	0:9b334a45a8ff	864	return HAL_OK;
bogdanm	0:9b334a45a8ff	865	}
bogdanm	0:9b334a45a8ff	866	else
bogdanm	0:9b334a45a8ff	867	{
bogdanm	0:9b334a45a8ff	868	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	869	}
bogdanm	0:9b334a45a8ff	870	}
bogdanm	0:9b334a45a8ff	871
bogdanm	0:9b334a45a8ff	872	/**
bogdanm	0:9b334a45a8ff	873	* @brief Pauses the audio stream playing from the Media.
bogdanm	0:9b334a45a8ff	874	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	875	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	876	* @retval HAL status
bogdanm	0:9b334a45a8ff	877	*/
bogdanm	0:9b334a45a8ff	878	HAL_StatusTypeDef HAL_SAI_DMAPause(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	879	{
bogdanm	0:9b334a45a8ff	880	/* Process Locked */
bogdanm	0:9b334a45a8ff	881	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	882
bogdanm	0:9b334a45a8ff	883	/* Pause the audio file playing by disabling the SAI DMA requests */
bogdanm	0:9b334a45a8ff	884	hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
bogdanm	0:9b334a45a8ff	885
bogdanm	0:9b334a45a8ff	886	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	887	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	888
bogdanm	0:9b334a45a8ff	889	return HAL_OK;
bogdanm	0:9b334a45a8ff	890	}
bogdanm	0:9b334a45a8ff	891
bogdanm	0:9b334a45a8ff	892	/**
bogdanm	0:9b334a45a8ff	893	* @brief Resumes the audio stream playing from the Media.
bogdanm	0:9b334a45a8ff	894	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	895	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	896	* @retval HAL status
bogdanm	0:9b334a45a8ff	897	*/
bogdanm	0:9b334a45a8ff	898	HAL_StatusTypeDef HAL_SAI_DMAResume(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	899	{
bogdanm	0:9b334a45a8ff	900	/* Process Locked */
bogdanm	0:9b334a45a8ff	901	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	902
bogdanm	0:9b334a45a8ff	903	/* Enable the SAI DMA requests */
bogdanm	0:9b334a45a8ff	904	hsai->Instance->CR1 \|= SAI_xCR1_DMAEN;
bogdanm	0:9b334a45a8ff	905
bogdanm	0:9b334a45a8ff	906	/* If the SAI peripheral is still not enabled, enable it */
bogdanm	0:9b334a45a8ff	907	if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == RESET)
bogdanm	0:9b334a45a8ff	908	{
bogdanm	0:9b334a45a8ff	909	/* Enable SAI peripheral */
bogdanm	0:9b334a45a8ff	910	__HAL_SAI_ENABLE(hsai);
bogdanm	0:9b334a45a8ff	911	}
bogdanm	0:9b334a45a8ff	912
bogdanm	0:9b334a45a8ff	913	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	914	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	915
bogdanm	0:9b334a45a8ff	916	return HAL_OK;
bogdanm	0:9b334a45a8ff	917	}
bogdanm	0:9b334a45a8ff	918
bogdanm	0:9b334a45a8ff	919	/**
bogdanm	0:9b334a45a8ff	920	* @brief Stops the audio stream playing from the Media.
bogdanm	0:9b334a45a8ff	921	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	922	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	923	* @retval HAL status
bogdanm	0:9b334a45a8ff	924	*/
bogdanm	0:9b334a45a8ff	925	HAL_StatusTypeDef HAL_SAI_DMAStop(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	926	{
bogdanm	0:9b334a45a8ff	927	/* Process Locked */
bogdanm	0:9b334a45a8ff	928	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	929
bogdanm	0:9b334a45a8ff	930	/* Disable the SAI DMA request */
bogdanm	0:9b334a45a8ff	931	hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
bogdanm	0:9b334a45a8ff	932
bogdanm	0:9b334a45a8ff	933	/* Abort the SAI DMA Tx Stream */
bogdanm	0:9b334a45a8ff	934	if(hsai->hdmatx != NULL)
bogdanm	0:9b334a45a8ff	935	{
bogdanm	0:9b334a45a8ff	936	HAL_DMA_Abort(hsai->hdmatx);
bogdanm	0:9b334a45a8ff	937	}
bogdanm	0:9b334a45a8ff	938	/* Abort the SAI DMA Rx Stream */
bogdanm	0:9b334a45a8ff	939	if(hsai->hdmarx != NULL)
bogdanm	0:9b334a45a8ff	940	{
bogdanm	0:9b334a45a8ff	941	HAL_DMA_Abort(hsai->hdmarx);
bogdanm	0:9b334a45a8ff	942	}
bogdanm	0:9b334a45a8ff	943
bogdanm	0:9b334a45a8ff	944	/* Disable SAI peripheral */
bogdanm	0:9b334a45a8ff	945	SAI_Disable(hsai);
bogdanm	0:9b334a45a8ff	946
bogdanm	0:9b334a45a8ff	947	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	948
bogdanm	0:9b334a45a8ff	949	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	950	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	951
bogdanm	0:9b334a45a8ff	952	return HAL_OK;
bogdanm	0:9b334a45a8ff	953	}
bogdanm	0:9b334a45a8ff	954
bogdanm	0:9b334a45a8ff	955	/**
bogdanm	0:9b334a45a8ff	956	* @brief Abort the current transfer and disbaled the SAI.
bogdanm	0:9b334a45a8ff	957	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	958	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	959	* @retval HAL status
bogdanm	0:9b334a45a8ff	960	*/
bogdanm	0:9b334a45a8ff	961	HAL_StatusTypeDef HAL_SAI_Abort(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	962	{
bogdanm	0:9b334a45a8ff	963	/* Disable the SAI DMA request */
bogdanm	0:9b334a45a8ff	964	hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
bogdanm	0:9b334a45a8ff	965
bogdanm	0:9b334a45a8ff	966	/* Abort the SAI DMA Tx Stream */
bogdanm	0:9b334a45a8ff	967	if(hsai->hdmatx != NULL)
bogdanm	0:9b334a45a8ff	968	{
bogdanm	0:9b334a45a8ff	969	HAL_DMA_Abort(hsai->hdmatx);
bogdanm	0:9b334a45a8ff	970	}
bogdanm	0:9b334a45a8ff	971	/* Abort the SAI DMA Rx Stream */
bogdanm	0:9b334a45a8ff	972	if(hsai->hdmarx != NULL)
bogdanm	0:9b334a45a8ff	973	{
bogdanm	0:9b334a45a8ff	974	HAL_DMA_Abort(hsai->hdmarx);
bogdanm	0:9b334a45a8ff	975	}
bogdanm	0:9b334a45a8ff	976
bogdanm	0:9b334a45a8ff	977	/* Disabled All interrupt and clear all the flag */
bogdanm	0:9b334a45a8ff	978	hsai->Instance->IMR = 0;
bogdanm	0:9b334a45a8ff	979	hsai->Instance->CLRFR = 0xFFFFFFFF;
bogdanm	0:9b334a45a8ff	980
bogdanm	0:9b334a45a8ff	981	/* Disable SAI peripheral */
bogdanm	0:9b334a45a8ff	982	SAI_Disable(hsai);
bogdanm	0:9b334a45a8ff	983
bogdanm	0:9b334a45a8ff	984	/* Flush the fifo */
bogdanm	0:9b334a45a8ff	985	SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH);
bogdanm	0:9b334a45a8ff	986
bogdanm	0:9b334a45a8ff	987	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	988
bogdanm	0:9b334a45a8ff	989	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	990	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	991
bogdanm	0:9b334a45a8ff	992	return HAL_OK;
bogdanm	0:9b334a45a8ff	993	}
bogdanm	0:9b334a45a8ff	994
bogdanm	0:9b334a45a8ff	995	/**
bogdanm	0:9b334a45a8ff	996	* @brief Transmits an amount of data in no-blocking mode with DMA.
bogdanm	0:9b334a45a8ff	997	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	998	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	999	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	1000	* @param Size: Amount of data to be sent
bogdanm	0:9b334a45a8ff	1001	* @retval HAL status
bogdanm	0:9b334a45a8ff	1002	*/
bogdanm	0:9b334a45a8ff	1003	HAL_StatusTypeDef HAL_SAI_Transmit_DMA(SAI_HandleTypeDef hsai, uint8_t pData, uint16_t Size)
bogdanm	0:9b334a45a8ff	1004	{
bogdanm	0:9b334a45a8ff	1005	uint32_t *tmp;
bogdanm	0:9b334a45a8ff	1006
bogdanm	0:9b334a45a8ff	1007	if((pData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	1008	{
bogdanm	0:9b334a45a8ff	1009	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1010	}
bogdanm	0:9b334a45a8ff	1011
bogdanm	0:9b334a45a8ff	1012	if(hsai->State == HAL_SAI_STATE_READY)
bogdanm	0:9b334a45a8ff	1013	{
bogdanm	0:9b334a45a8ff	1014	hsai->pBuffPtr = pData;
bogdanm	0:9b334a45a8ff	1015	hsai->XferSize = Size;
bogdanm	0:9b334a45a8ff	1016	hsai->XferCount = Size;
bogdanm	0:9b334a45a8ff	1017
bogdanm	0:9b334a45a8ff	1018	/* Process Locked */
bogdanm	0:9b334a45a8ff	1019	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	1020
bogdanm	0:9b334a45a8ff	1021	hsai->State = HAL_SAI_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	1022
bogdanm	0:9b334a45a8ff	1023	/* Set the SAI Tx DMA Half transfer complete callback */
bogdanm	0:9b334a45a8ff	1024	hsai->hdmatx->XferHalfCpltCallback = SAI_DMATxHalfCplt;
bogdanm	0:9b334a45a8ff	1025
bogdanm	0:9b334a45a8ff	1026	/* Set the SAI TxDMA transfer complete callback */
bogdanm	0:9b334a45a8ff	1027	hsai->hdmatx->XferCpltCallback = SAI_DMATxCplt;
bogdanm	0:9b334a45a8ff	1028
bogdanm	0:9b334a45a8ff	1029	/* Set the DMA error callback */
bogdanm	0:9b334a45a8ff	1030	hsai->hdmatx->XferErrorCallback = SAI_DMAError;
bogdanm	0:9b334a45a8ff	1031
bogdanm	0:9b334a45a8ff	1032	/* Enable the Tx DMA Stream */
bogdanm	0:9b334a45a8ff	1033	tmp = (uint32_t*)&pData;
bogdanm	0:9b334a45a8ff	1034	HAL_DMA_Start_IT(hsai->hdmatx, (uint32_t)tmp, (uint32_t)&hsai->Instance->DR, hsai->XferSize);
bogdanm	0:9b334a45a8ff	1035
bogdanm	0:9b334a45a8ff	1036	/* Check if the SAI is already enabled */
bogdanm	0:9b334a45a8ff	1037	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
bogdanm	0:9b334a45a8ff	1038	{
bogdanm	0:9b334a45a8ff	1039	/* Enable SAI peripheral */
bogdanm	0:9b334a45a8ff	1040	__HAL_SAI_ENABLE(hsai);
bogdanm	0:9b334a45a8ff	1041	}
bogdanm	0:9b334a45a8ff	1042
bogdanm	0:9b334a45a8ff	1043	/* Enable the interrupts for error handling */
bogdanm	0:9b334a45a8ff	1044	__HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA));
bogdanm	0:9b334a45a8ff	1045
bogdanm	0:9b334a45a8ff	1046	/* Enable SAI Tx DMA Request */
bogdanm	0:9b334a45a8ff	1047	hsai->Instance->CR1 \|= SAI_xCR1_DMAEN;
bogdanm	0:9b334a45a8ff	1048
bogdanm	0:9b334a45a8ff	1049	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1050	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	1051
bogdanm	0:9b334a45a8ff	1052	return HAL_OK;
bogdanm	0:9b334a45a8ff	1053	}
bogdanm	0:9b334a45a8ff	1054	else
bogdanm	0:9b334a45a8ff	1055	{
bogdanm	0:9b334a45a8ff	1056	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	1057	}
bogdanm	0:9b334a45a8ff	1058	}
bogdanm	0:9b334a45a8ff	1059
bogdanm	0:9b334a45a8ff	1060	/**
bogdanm	0:9b334a45a8ff	1061	* @brief Receives an amount of data in no-blocking mode with DMA.
bogdanm	0:9b334a45a8ff	1062	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1063	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1064	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	1065	* @param Size: Amount of data to be received
bogdanm	0:9b334a45a8ff	1066	* @retval HAL status
bogdanm	0:9b334a45a8ff	1067	*/
bogdanm	0:9b334a45a8ff	1068	HAL_StatusTypeDef HAL_SAI_Receive_DMA(SAI_HandleTypeDef hsai, uint8_t pData, uint16_t Size)
bogdanm	0:9b334a45a8ff	1069	{
bogdanm	0:9b334a45a8ff	1070	uint32_t *tmp;
bogdanm	0:9b334a45a8ff	1071
bogdanm	0:9b334a45a8ff	1072	if((pData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	1073	{
bogdanm	0:9b334a45a8ff	1074	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1075	}
bogdanm	0:9b334a45a8ff	1076
bogdanm	0:9b334a45a8ff	1077	if(hsai->State == HAL_SAI_STATE_READY)
bogdanm	0:9b334a45a8ff	1078	{
bogdanm	0:9b334a45a8ff	1079	hsai->pBuffPtr = pData;
bogdanm	0:9b334a45a8ff	1080	hsai->XferSize = Size;
bogdanm	0:9b334a45a8ff	1081	hsai->XferCount = Size;
bogdanm	0:9b334a45a8ff	1082
bogdanm	0:9b334a45a8ff	1083	/* Process Locked */
bogdanm	0:9b334a45a8ff	1084	__HAL_LOCK(hsai);
bogdanm	0:9b334a45a8ff	1085
bogdanm	0:9b334a45a8ff	1086	hsai->State = HAL_SAI_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	1087
bogdanm	0:9b334a45a8ff	1088	/* Set the SAI Rx DMA Half transfer complete callback */
bogdanm	0:9b334a45a8ff	1089	hsai->hdmarx->XferHalfCpltCallback = SAI_DMARxHalfCplt;
bogdanm	0:9b334a45a8ff	1090
bogdanm	0:9b334a45a8ff	1091	/* Set the SAI Rx DMA transfer complete callback */
bogdanm	0:9b334a45a8ff	1092	hsai->hdmarx->XferCpltCallback = SAI_DMARxCplt;
bogdanm	0:9b334a45a8ff	1093
bogdanm	0:9b334a45a8ff	1094	/* Set the DMA error callback */
bogdanm	0:9b334a45a8ff	1095	hsai->hdmarx->XferErrorCallback = SAI_DMAError;
bogdanm	0:9b334a45a8ff	1096
bogdanm	0:9b334a45a8ff	1097	/* Enable the Rx DMA Stream */
bogdanm	0:9b334a45a8ff	1098	tmp = (uint32_t*)&pData;
bogdanm	0:9b334a45a8ff	1099	HAL_DMA_Start_IT(hsai->hdmarx, (uint32_t)&hsai->Instance->DR, (uint32_t)tmp, hsai->XferSize);
bogdanm	0:9b334a45a8ff	1100
bogdanm	0:9b334a45a8ff	1101	/* Check if the SAI is already enabled */
bogdanm	0:9b334a45a8ff	1102	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
bogdanm	0:9b334a45a8ff	1103	{
bogdanm	0:9b334a45a8ff	1104	/* Enable SAI peripheral */
bogdanm	0:9b334a45a8ff	1105	__HAL_SAI_ENABLE(hsai);
bogdanm	0:9b334a45a8ff	1106	}
bogdanm	0:9b334a45a8ff	1107
bogdanm	0:9b334a45a8ff	1108	/* Enable the interrupts for error handling */
bogdanm	0:9b334a45a8ff	1109	__HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA));
bogdanm	0:9b334a45a8ff	1110
bogdanm	0:9b334a45a8ff	1111	/* Enable SAI Rx DMA Request */
bogdanm	0:9b334a45a8ff	1112	hsai->Instance->CR1 \|= SAI_xCR1_DMAEN;
bogdanm	0:9b334a45a8ff	1113
bogdanm	0:9b334a45a8ff	1114	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1115	__HAL_UNLOCK(hsai);
bogdanm	0:9b334a45a8ff	1116
bogdanm	0:9b334a45a8ff	1117	return HAL_OK;
bogdanm	0:9b334a45a8ff	1118	}
bogdanm	0:9b334a45a8ff	1119	else
bogdanm	0:9b334a45a8ff	1120	{
bogdanm	0:9b334a45a8ff	1121	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	1122	}
bogdanm	0:9b334a45a8ff	1123	}
bogdanm	0:9b334a45a8ff	1124
bogdanm	0:9b334a45a8ff	1125	/**
bogdanm	0:9b334a45a8ff	1126	* @brief Enable the tx mute mode.
bogdanm	0:9b334a45a8ff	1127	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1128	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1129	* @param val : value sent during the mute @ref SAI_Block_Mute_Value
bogdanm	0:9b334a45a8ff	1130	* @retval HAL status
bogdanm	0:9b334a45a8ff	1131	*/
bogdanm	0:9b334a45a8ff	1132	HAL_StatusTypeDef HAL_SAI_EnableTxMuteMode(SAI_HandleTypeDef *hsai, uint16_t val)
bogdanm	0:9b334a45a8ff	1133	{
bogdanm	0:9b334a45a8ff	1134	assert_param(IS_SAI_BLOCK_MUTE_VALUE(val));
bogdanm	0:9b334a45a8ff	1135
bogdanm	0:9b334a45a8ff	1136	if(hsai->State != HAL_SAI_STATE_RESET)
bogdanm	0:9b334a45a8ff	1137	{
bogdanm	0:9b334a45a8ff	1138	CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTEVAL \| SAI_xCR2_MUTE);
bogdanm	0:9b334a45a8ff	1139	SET_BIT(hsai->Instance->CR2, SAI_xCR2_MUTE \| val);
bogdanm	0:9b334a45a8ff	1140	return HAL_OK;
bogdanm	0:9b334a45a8ff	1141	}
bogdanm	0:9b334a45a8ff	1142	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1143	}
bogdanm	0:9b334a45a8ff	1144
bogdanm	0:9b334a45a8ff	1145	/**
bogdanm	0:9b334a45a8ff	1146	* @brief Disable the tx mute mode.
bogdanm	0:9b334a45a8ff	1147	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1148	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1149	* @retval HAL status
bogdanm	0:9b334a45a8ff	1150	*/
bogdanm	0:9b334a45a8ff	1151	HAL_StatusTypeDef HAL_SAI_DisableTxMuteMode(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1152	{
bogdanm	0:9b334a45a8ff	1153	if(hsai->State != HAL_SAI_STATE_RESET)
bogdanm	0:9b334a45a8ff	1154	{
bogdanm	0:9b334a45a8ff	1155	CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTEVAL \| SAI_xCR2_MUTE);
bogdanm	0:9b334a45a8ff	1156	return HAL_OK;
bogdanm	0:9b334a45a8ff	1157	}
bogdanm	0:9b334a45a8ff	1158	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1159	}
bogdanm	0:9b334a45a8ff	1160
bogdanm	0:9b334a45a8ff	1161	/**
bogdanm	0:9b334a45a8ff	1162	* @brief Enable the rx mute detection.
bogdanm	0:9b334a45a8ff	1163	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1164	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1165	* @param callback : function called when the mute is detected
bogdanm	0:9b334a45a8ff	1166	* @param counter : number a data before mute detection max 63.
bogdanm	0:9b334a45a8ff	1167	* @retval HAL status
bogdanm	0:9b334a45a8ff	1168	*/
bogdanm	0:9b334a45a8ff	1169	HAL_StatusTypeDef HAL_SAI_EnableRxMuteMode(SAI_HandleTypeDef *hsai, SAIcallback callback, uint16_t counter)
bogdanm	0:9b334a45a8ff	1170	{
bogdanm	0:9b334a45a8ff	1171	assert_param(IS_SAI_BLOCK_MUTE_COUNTER(counter));
bogdanm	0:9b334a45a8ff	1172
bogdanm	0:9b334a45a8ff	1173	if(hsai->State != HAL_SAI_STATE_RESET)
bogdanm	0:9b334a45a8ff	1174	{
bogdanm	0:9b334a45a8ff	1175	/* set the mute counter */
bogdanm	0:9b334a45a8ff	1176	CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTECNT);
bogdanm	0:9b334a45a8ff	1177	SET_BIT(hsai->Instance->CR2, (uint32_t)((uint32_t)counter << 6));
bogdanm	0:9b334a45a8ff	1178	hsai->mutecallback = callback;
bogdanm	0:9b334a45a8ff	1179	/* enable the IT interrupt */
bogdanm	0:9b334a45a8ff	1180	__HAL_SAI_ENABLE_IT(hsai, SAI_IT_MUTEDET);
bogdanm	0:9b334a45a8ff	1181	return HAL_OK;
bogdanm	0:9b334a45a8ff	1182	}
bogdanm	0:9b334a45a8ff	1183	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1184	}
bogdanm	0:9b334a45a8ff	1185
bogdanm	0:9b334a45a8ff	1186	/**
bogdanm	0:9b334a45a8ff	1187	* @brief Disable the rx mute detection.
bogdanm	0:9b334a45a8ff	1188	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1189	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1190	* @retval HAL status
bogdanm	0:9b334a45a8ff	1191	*/
bogdanm	0:9b334a45a8ff	1192	HAL_StatusTypeDef HAL_SAI_DisableRxMuteMode(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1193	{
bogdanm	0:9b334a45a8ff	1194	if(hsai->State != HAL_SAI_STATE_RESET)
bogdanm	0:9b334a45a8ff	1195	{
bogdanm	0:9b334a45a8ff	1196	/* set the mutecallback to NULL */
bogdanm	0:9b334a45a8ff	1197	hsai->mutecallback = (SAIcallback)NULL;
bogdanm	0:9b334a45a8ff	1198	/* enable the IT interrupt */
bogdanm	0:9b334a45a8ff	1199	__HAL_SAI_DISABLE_IT(hsai, SAI_IT_MUTEDET);
bogdanm	0:9b334a45a8ff	1200	return HAL_OK;
bogdanm	0:9b334a45a8ff	1201	}
bogdanm	0:9b334a45a8ff	1202	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1203	}
bogdanm	0:9b334a45a8ff	1204
bogdanm	0:9b334a45a8ff	1205	/**
bogdanm	0:9b334a45a8ff	1206	* @brief This function handles SAI interrupt request.
bogdanm	0:9b334a45a8ff	1207	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1208	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1209	* @retval HAL status
bogdanm	0:9b334a45a8ff	1210	*/
bogdanm	0:9b334a45a8ff	1211	void HAL_SAI_IRQHandler(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1212	{
bogdanm	0:9b334a45a8ff	1213	if(hsai->State != HAL_SAI_STATE_RESET)
bogdanm	0:9b334a45a8ff	1214	{
bogdanm	0:9b334a45a8ff	1215	uint32_t tmpFlag = hsai->Instance->SR;
bogdanm	0:9b334a45a8ff	1216	uint32_t tmpItSource = hsai->Instance->IMR;
bogdanm	0:9b334a45a8ff	1217
bogdanm	0:9b334a45a8ff	1218	if(((tmpFlag & SAI_xSR_FREQ) == SAI_xSR_FREQ) && ((tmpItSource & SAI_IT_FREQ) == SAI_IT_FREQ))
bogdanm	0:9b334a45a8ff	1219	{
bogdanm	0:9b334a45a8ff	1220	hsai->InterruptServiceRoutine(hsai);
bogdanm	0:9b334a45a8ff	1221	}
bogdanm	0:9b334a45a8ff	1222
bogdanm	0:9b334a45a8ff	1223	/* check the flag only if one of them is set */
bogdanm	0:9b334a45a8ff	1224	if(tmpFlag != 0x00000000)
bogdanm	0:9b334a45a8ff	1225	{
bogdanm	0:9b334a45a8ff	1226	/* SAI Overrun error interrupt occurred ----------------------------------*/
bogdanm	0:9b334a45a8ff	1227	if(((tmpFlag & SAI_FLAG_OVRUDR) == SAI_FLAG_OVRUDR) && ((tmpItSource & SAI_IT_OVRUDR) == SAI_IT_OVRUDR))
bogdanm	0:9b334a45a8ff	1228	{
bogdanm	0:9b334a45a8ff	1229	/* Clear the SAI Overrun flag */
bogdanm	0:9b334a45a8ff	1230	__HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
bogdanm	0:9b334a45a8ff	1231	/* Change the SAI error code */
bogdanm	0:9b334a45a8ff	1232	hsai->ErrorCode = ((hsai->State == HAL_SAI_STATE_BUSY_RX) ? HAL_SAI_ERROR_OVR : HAL_SAI_ERROR_UDR);
bogdanm	0:9b334a45a8ff	1233	/* the transfer is not stopped, we will forward the information to the user and we let the user decide what needs to be done */
bogdanm	0:9b334a45a8ff	1234	HAL_SAI_ErrorCallback(hsai);
bogdanm	0:9b334a45a8ff	1235	}
bogdanm	0:9b334a45a8ff	1236
bogdanm	0:9b334a45a8ff	1237	/* SAI mutedet interrupt occurred ----------------------------------*/
bogdanm	0:9b334a45a8ff	1238	if(((tmpFlag & SAI_FLAG_MUTEDET) == SAI_FLAG_MUTEDET) && ((tmpItSource & SAI_IT_MUTEDET) == SAI_IT_MUTEDET))
bogdanm	0:9b334a45a8ff	1239	{
bogdanm	0:9b334a45a8ff	1240	/* Clear the SAI mutedet flag */
bogdanm	0:9b334a45a8ff	1241	__HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_MUTEDET);
bogdanm	0:9b334a45a8ff	1242	/* call the call back function */
bogdanm	0:9b334a45a8ff	1243	if(hsai->mutecallback != (SAIcallback)NULL)
bogdanm	0:9b334a45a8ff	1244	{
bogdanm	0:9b334a45a8ff	1245	/* inform the user that an RX mute event has been detected */
bogdanm	0:9b334a45a8ff	1246	hsai->mutecallback();
bogdanm	0:9b334a45a8ff	1247	}
bogdanm	0:9b334a45a8ff	1248	}
bogdanm	0:9b334a45a8ff	1249
bogdanm	0:9b334a45a8ff	1250	/* SAI AFSDET interrupt occurred ----------------------------------*/
bogdanm	0:9b334a45a8ff	1251	if(((tmpFlag & SAI_FLAG_AFSDET) == SAI_FLAG_AFSDET) && ((tmpItSource & SAI_IT_AFSDET) == SAI_IT_AFSDET))
bogdanm	0:9b334a45a8ff	1252	{
bogdanm	0:9b334a45a8ff	1253	/* Change the SAI error code */
bogdanm	0:9b334a45a8ff	1254	hsai->ErrorCode = HAL_SAI_ERROR_AFSDET;
bogdanm	0:9b334a45a8ff	1255	HAL_SAI_Abort(hsai);
bogdanm	0:9b334a45a8ff	1256	HAL_SAI_ErrorCallback(hsai);
bogdanm	0:9b334a45a8ff	1257	}
bogdanm	0:9b334a45a8ff	1258
bogdanm	0:9b334a45a8ff	1259	/* SAI LFSDET interrupt occurred ----------------------------------*/
bogdanm	0:9b334a45a8ff	1260	if(((tmpFlag & SAI_FLAG_LFSDET) == SAI_FLAG_LFSDET) && ((tmpItSource & SAI_IT_LFSDET) == SAI_IT_LFSDET))
bogdanm	0:9b334a45a8ff	1261	{
bogdanm	0:9b334a45a8ff	1262	/* Change the SAI error code */
bogdanm	0:9b334a45a8ff	1263	hsai->ErrorCode = HAL_SAI_ERROR_LFSDET;
bogdanm	0:9b334a45a8ff	1264	HAL_SAI_Abort(hsai);
bogdanm	0:9b334a45a8ff	1265	HAL_SAI_ErrorCallback(hsai);
bogdanm	0:9b334a45a8ff	1266	}
bogdanm	0:9b334a45a8ff	1267
bogdanm	0:9b334a45a8ff	1268	/* SAI WCKCFG interrupt occurred ----------------------------------*/
bogdanm	0:9b334a45a8ff	1269	if(((tmpFlag & SAI_FLAG_WCKCFG) == SAI_FLAG_WCKCFG) && ((tmpItSource & SAI_IT_WCKCFG) == SAI_IT_WCKCFG))
bogdanm	0:9b334a45a8ff	1270	{
bogdanm	0:9b334a45a8ff	1271	/* Change the SAI error code */
bogdanm	0:9b334a45a8ff	1272	hsai->ErrorCode = HAL_SAI_ERROR_WCKCFG;
bogdanm	0:9b334a45a8ff	1273	HAL_SAI_Abort(hsai);
bogdanm	0:9b334a45a8ff	1274	HAL_SAI_ErrorCallback(hsai);
bogdanm	0:9b334a45a8ff	1275	}
bogdanm	0:9b334a45a8ff	1276	}
bogdanm	0:9b334a45a8ff	1277	}
bogdanm	0:9b334a45a8ff	1278	}
bogdanm	0:9b334a45a8ff	1279
bogdanm	0:9b334a45a8ff	1280	/**
bogdanm	0:9b334a45a8ff	1281	* @brief Tx Transfer completed callbacks.
bogdanm	0:9b334a45a8ff	1282	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1283	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1284	* @retval None
bogdanm	0:9b334a45a8ff	1285	*/
bogdanm	0:9b334a45a8ff	1286	__weak void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1287	{
bogdanm	0:9b334a45a8ff	1288	/* NOTE : This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1289	the HAL_SAI_TxCpltCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1290	*/
bogdanm	0:9b334a45a8ff	1291	}
bogdanm	0:9b334a45a8ff	1292
bogdanm	0:9b334a45a8ff	1293	/**
bogdanm	0:9b334a45a8ff	1294	* @brief Tx Transfer Half completed callbacks
bogdanm	0:9b334a45a8ff	1295	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1296	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1297	* @retval None
bogdanm	0:9b334a45a8ff	1298	*/
bogdanm	0:9b334a45a8ff	1299	__weak void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1300	{
bogdanm	0:9b334a45a8ff	1301	/* NOTE : This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1302	the HAL_SAI_TxHalfCpltCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1303	*/
bogdanm	0:9b334a45a8ff	1304	}
bogdanm	0:9b334a45a8ff	1305
bogdanm	0:9b334a45a8ff	1306	/**
bogdanm	0:9b334a45a8ff	1307	* @brief Rx Transfer completed callbacks.
bogdanm	0:9b334a45a8ff	1308	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1309	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1310	* @retval None
bogdanm	0:9b334a45a8ff	1311	*/
bogdanm	0:9b334a45a8ff	1312	__weak void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1313	{
bogdanm	0:9b334a45a8ff	1314	/* NOTE : This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1315	the HAL_SAI_RxCpltCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1316	*/
bogdanm	0:9b334a45a8ff	1317	}
bogdanm	0:9b334a45a8ff	1318
bogdanm	0:9b334a45a8ff	1319	/**
bogdanm	0:9b334a45a8ff	1320	* @brief Rx Transfer half completed callbacks
bogdanm	0:9b334a45a8ff	1321	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1322	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1323	* @retval None
bogdanm	0:9b334a45a8ff	1324	*/
bogdanm	0:9b334a45a8ff	1325	__weak void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1326	{
bogdanm	0:9b334a45a8ff	1327	/* NOTE : This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1328	the HAL_SAI_RxCpltCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1329	*/
bogdanm	0:9b334a45a8ff	1330	}
bogdanm	0:9b334a45a8ff	1331
bogdanm	0:9b334a45a8ff	1332	/**
bogdanm	0:9b334a45a8ff	1333	* @brief SAI error callbacks.
bogdanm	0:9b334a45a8ff	1334	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1335	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1336	* @retval None
bogdanm	0:9b334a45a8ff	1337	*/
bogdanm	0:9b334a45a8ff	1338	__weak void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1339	{
bogdanm	0:9b334a45a8ff	1340	/* NOTE : This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1341	the HAL_SAI_ErrorCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1342	*/
bogdanm	0:9b334a45a8ff	1343	}
bogdanm	0:9b334a45a8ff	1344
bogdanm	0:9b334a45a8ff	1345	/**
bogdanm	0:9b334a45a8ff	1346	* @}
bogdanm	0:9b334a45a8ff	1347	*/
bogdanm	0:9b334a45a8ff	1348
bogdanm	0:9b334a45a8ff	1349
bogdanm	0:9b334a45a8ff	1350	/** @defgroup SAI_Exported_Functions_Group3 Peripheral State functions
bogdanm	0:9b334a45a8ff	1351	* @brief Peripheral State functions
bogdanm	0:9b334a45a8ff	1352	*
bogdanm	0:9b334a45a8ff	1353	@verbatim
bogdanm	0:9b334a45a8ff	1354	===============================================================================
bogdanm	0:9b334a45a8ff	1355	##### Peripheral State and Errors functions #####
bogdanm	0:9b334a45a8ff	1356	===============================================================================
bogdanm	0:9b334a45a8ff	1357	[..]
bogdanm	0:9b334a45a8ff	1358	This subsection permits to get in run-time the status of the peripheral
bogdanm	0:9b334a45a8ff	1359	and the data flow.
bogdanm	0:9b334a45a8ff	1360
bogdanm	0:9b334a45a8ff	1361	@endverbatim
bogdanm	0:9b334a45a8ff	1362	* @{
bogdanm	0:9b334a45a8ff	1363	*/
bogdanm	0:9b334a45a8ff	1364
bogdanm	0:9b334a45a8ff	1365	/**
bogdanm	0:9b334a45a8ff	1366	* @brief Returns the SAI state.
bogdanm	0:9b334a45a8ff	1367	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1368	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1369	* @retval HAL state
bogdanm	0:9b334a45a8ff	1370	*/
bogdanm	0:9b334a45a8ff	1371	HAL_SAI_StateTypeDef HAL_SAI_GetState(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1372	{
bogdanm	0:9b334a45a8ff	1373	return hsai->State;
bogdanm	0:9b334a45a8ff	1374	}
bogdanm	0:9b334a45a8ff	1375
bogdanm	0:9b334a45a8ff	1376	/**
bogdanm	0:9b334a45a8ff	1377	* @brief Return the SAI error code
bogdanm	0:9b334a45a8ff	1378	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1379	* the configuration information for the specified SAI Block.
bogdanm	0:9b334a45a8ff	1380	* @retval SAI Error Code
bogdanm	0:9b334a45a8ff	1381	*/
bogdanm	0:9b334a45a8ff	1382	uint32_t HAL_SAI_GetError(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1383	{
bogdanm	0:9b334a45a8ff	1384	return hsai->ErrorCode;
bogdanm	0:9b334a45a8ff	1385	}
bogdanm	0:9b334a45a8ff	1386	/**
bogdanm	0:9b334a45a8ff	1387	* @}
bogdanm	0:9b334a45a8ff	1388	*/
bogdanm	0:9b334a45a8ff	1389
bogdanm	0:9b334a45a8ff	1390	/**
bogdanm	0:9b334a45a8ff	1391	* @brief Initializes the SAI I2S protocol according to the specified parameters
bogdanm	0:9b334a45a8ff	1392	* in the SAI_InitTypeDef and create the associated handle.
bogdanm	0:9b334a45a8ff	1393	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1394	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1395	* @param protocol : one of the supported protocol
bogdanm	0:9b334a45a8ff	1396	* @param datasize : one of the supported datasize @ref SAI_Protocol_DataSize
bogdanm	0:9b334a45a8ff	1397	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1398	* @param nbslot : number of slot minimum value is 2 and max is 16.
bogdanm	0:9b334a45a8ff	1399	* the value must be a multiple of 2.
bogdanm	0:9b334a45a8ff	1400	* @retval HAL status
bogdanm	0:9b334a45a8ff	1401	*/
bogdanm	0:9b334a45a8ff	1402	static HAL_StatusTypeDef SAI_InitI2S(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot)
bogdanm	0:9b334a45a8ff	1403	{
bogdanm	0:9b334a45a8ff	1404	/* Check the parameters */
bogdanm	0:9b334a45a8ff	1405	assert_param(IS_SAI_SUPPORTED_PROTOCOL(protocol));
bogdanm	0:9b334a45a8ff	1406	assert_param(IS_SAI_PROTOCOL_DATASIZE(datasize));
bogdanm	0:9b334a45a8ff	1407
bogdanm	0:9b334a45a8ff	1408	hsai->Init.Protocol = SAI_FREE_PROTOCOL;
bogdanm	0:9b334a45a8ff	1409	hsai->Init.FirstBit = SAI_FIRSTBIT_MSB;
bogdanm	0:9b334a45a8ff	1410	hsai->Init.ClockStrobing = SAI_CLOCKSTROBING_FALLINGEDGE;
bogdanm	0:9b334a45a8ff	1411	hsai->FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
bogdanm	0:9b334a45a8ff	1412	hsai->SlotInit.SlotActive = SAI_SLOTACTIVE_ALL;
bogdanm	0:9b334a45a8ff	1413	hsai->SlotInit.FirstBitOffset = 0;
bogdanm	0:9b334a45a8ff	1414	hsai->SlotInit.SlotNumber = nbslot;
bogdanm	0:9b334a45a8ff	1415
bogdanm	0:9b334a45a8ff	1416	/* in IS2 the number of slot must be even */
bogdanm	0:9b334a45a8ff	1417	if((nbslot & 0x1) != 0 )
bogdanm	0:9b334a45a8ff	1418	{
bogdanm	0:9b334a45a8ff	1419	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1420	}
bogdanm	0:9b334a45a8ff	1421
bogdanm	0:9b334a45a8ff	1422	switch(protocol)
bogdanm	0:9b334a45a8ff	1423	{
bogdanm	0:9b334a45a8ff	1424	case SAI_I2S_STANDARD :
bogdanm	0:9b334a45a8ff	1425	hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
bogdanm	0:9b334a45a8ff	1426	hsai->FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
bogdanm	0:9b334a45a8ff	1427	break;
bogdanm	0:9b334a45a8ff	1428	case SAI_I2S_MSBJUSTIFIED :
bogdanm	0:9b334a45a8ff	1429	case SAI_I2S_LSBJUSTIFIED :
bogdanm	0:9b334a45a8ff	1430	hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_HIGH;
bogdanm	0:9b334a45a8ff	1431	hsai->FrameInit.FSOffset = SAI_FS_FIRSTBIT;
bogdanm	0:9b334a45a8ff	1432	break;
bogdanm	0:9b334a45a8ff	1433	default :
bogdanm	0:9b334a45a8ff	1434	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1435	}
bogdanm	0:9b334a45a8ff	1436
bogdanm	0:9b334a45a8ff	1437	/* Frame definition */
bogdanm	0:9b334a45a8ff	1438	hsai->Init.DataSize = 0xFFFFFFFF;
bogdanm	0:9b334a45a8ff	1439	switch(datasize)
bogdanm	0:9b334a45a8ff	1440	{
bogdanm	0:9b334a45a8ff	1441	case SAI_PROTOCOL_DATASIZE_16BIT:
bogdanm	0:9b334a45a8ff	1442	hsai->Init.DataSize = SAI_DATASIZE_16;
bogdanm	0:9b334a45a8ff	1443	hsai->FrameInit.FrameLength = 32*(nbslot/2);
bogdanm	0:9b334a45a8ff	1444	hsai->FrameInit.ActiveFrameLength = 16*(nbslot/2);
bogdanm	0:9b334a45a8ff	1445	hsai->SlotInit.SlotSize = SAI_SLOTSIZE_16B;
bogdanm	0:9b334a45a8ff	1446	break;
bogdanm	0:9b334a45a8ff	1447	case SAI_PROTOCOL_DATASIZE_16BITEXTENDED :
bogdanm	0:9b334a45a8ff	1448	if(hsai->Init.DataSize == 0xFFFFFFFF)
bogdanm	0:9b334a45a8ff	1449	{
bogdanm	0:9b334a45a8ff	1450	hsai->Init.DataSize = SAI_DATASIZE_16;
bogdanm	0:9b334a45a8ff	1451	}
bogdanm	0:9b334a45a8ff	1452	break;
bogdanm	0:9b334a45a8ff	1453	case SAI_PROTOCOL_DATASIZE_24BIT:
bogdanm	0:9b334a45a8ff	1454	if(hsai->Init.DataSize == 0xFFFFFFFF)
bogdanm	0:9b334a45a8ff	1455	{
bogdanm	0:9b334a45a8ff	1456	hsai->Init.DataSize = SAI_DATASIZE_24;
bogdanm	0:9b334a45a8ff	1457	}
bogdanm	0:9b334a45a8ff	1458	break;
bogdanm	0:9b334a45a8ff	1459	case SAI_PROTOCOL_DATASIZE_32BIT:
bogdanm	0:9b334a45a8ff	1460	if(hsai->Init.DataSize == 0xFFFFFFFF)
bogdanm	0:9b334a45a8ff	1461	{
bogdanm	0:9b334a45a8ff	1462	hsai->Init.DataSize = SAI_DATASIZE_32;
bogdanm	0:9b334a45a8ff	1463	}
bogdanm	0:9b334a45a8ff	1464	hsai->FrameInit.FrameLength = 64*(nbslot/2);
bogdanm	0:9b334a45a8ff	1465	hsai->FrameInit.ActiveFrameLength = 32*(nbslot/2);
bogdanm	0:9b334a45a8ff	1466	hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B;
bogdanm	0:9b334a45a8ff	1467	if(protocol == SAI_I2S_LSBJUSTIFIED)
bogdanm	0:9b334a45a8ff	1468	{
bogdanm	0:9b334a45a8ff	1469	if (datasize == SAI_PROTOCOL_DATASIZE_16BITEXTENDED)
bogdanm	0:9b334a45a8ff	1470	{
bogdanm	0:9b334a45a8ff	1471	hsai->SlotInit.FirstBitOffset = 16;
bogdanm	0:9b334a45a8ff	1472	}
bogdanm	0:9b334a45a8ff	1473	if (datasize == SAI_PROTOCOL_DATASIZE_24BIT)
bogdanm	0:9b334a45a8ff	1474	{
bogdanm	0:9b334a45a8ff	1475	hsai->SlotInit.FirstBitOffset = 8;
bogdanm	0:9b334a45a8ff	1476	}
bogdanm	0:9b334a45a8ff	1477	}
bogdanm	0:9b334a45a8ff	1478	break;
bogdanm	0:9b334a45a8ff	1479	default :
bogdanm	0:9b334a45a8ff	1480	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1481	}
bogdanm	0:9b334a45a8ff	1482
bogdanm	0:9b334a45a8ff	1483	return HAL_OK;
bogdanm	0:9b334a45a8ff	1484	}
bogdanm	0:9b334a45a8ff	1485
bogdanm	0:9b334a45a8ff	1486	/**
bogdanm	0:9b334a45a8ff	1487	* @brief Initializes the SAI PCM protocol according to the specified parameters
bogdanm	0:9b334a45a8ff	1488	* in the SAI_InitTypeDef and create the associated handle.
bogdanm	0:9b334a45a8ff	1489	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1490	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1491	* @param protocol : one of the supported protocol
bogdanm	0:9b334a45a8ff	1492	* @param datasize : one of the supported datasize @ref SAI_Protocol_DataSize
bogdanm	0:9b334a45a8ff	1493	* @param nbslot : number of slot minimum value is 1 and the max is 16.
bogdanm	0:9b334a45a8ff	1494	* @retval HAL status
bogdanm	0:9b334a45a8ff	1495	*/
bogdanm	0:9b334a45a8ff	1496	static HAL_StatusTypeDef SAI_InitPCM(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot)
bogdanm	0:9b334a45a8ff	1497	{
bogdanm	0:9b334a45a8ff	1498	/* Check the parameters */
bogdanm	0:9b334a45a8ff	1499	assert_param(IS_SAI_SUPPORTED_PROTOCOL(protocol));
bogdanm	0:9b334a45a8ff	1500	assert_param(IS_SAI_PROTOCOL_DATASIZE(datasize));
bogdanm	0:9b334a45a8ff	1501
bogdanm	0:9b334a45a8ff	1502	hsai->Init.Protocol = SAI_FREE_PROTOCOL;
bogdanm	0:9b334a45a8ff	1503	hsai->Init.FirstBit = SAI_FIRSTBIT_MSB;
bogdanm	0:9b334a45a8ff	1504	hsai->Init.ClockStrobing = SAI_CLOCKSTROBING_FALLINGEDGE;
bogdanm	0:9b334a45a8ff	1505	hsai->FrameInit.FSDefinition = SAI_FS_STARTFRAME;
bogdanm	0:9b334a45a8ff	1506	hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_HIGH;
bogdanm	0:9b334a45a8ff	1507	hsai->FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
bogdanm	0:9b334a45a8ff	1508	hsai->SlotInit.FirstBitOffset = 0;
bogdanm	0:9b334a45a8ff	1509	hsai->SlotInit.SlotNumber = nbslot;
bogdanm	0:9b334a45a8ff	1510	hsai->SlotInit.SlotActive = SAI_SLOTACTIVE_ALL;
bogdanm	0:9b334a45a8ff	1511
bogdanm	0:9b334a45a8ff	1512	switch(protocol)
bogdanm	0:9b334a45a8ff	1513	{
bogdanm	0:9b334a45a8ff	1514	case SAI_PCM_SHORT :
bogdanm	0:9b334a45a8ff	1515	hsai->FrameInit.ActiveFrameLength = 1;
bogdanm	0:9b334a45a8ff	1516	break;
bogdanm	0:9b334a45a8ff	1517	case SAI_PCM_LONG :
bogdanm	0:9b334a45a8ff	1518	hsai->FrameInit.ActiveFrameLength = 13;
bogdanm	0:9b334a45a8ff	1519	break;
bogdanm	0:9b334a45a8ff	1520	default :
bogdanm	0:9b334a45a8ff	1521	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1522	}
bogdanm	0:9b334a45a8ff	1523
bogdanm	0:9b334a45a8ff	1524	switch(datasize)
bogdanm	0:9b334a45a8ff	1525	{
bogdanm	0:9b334a45a8ff	1526	case SAI_PROTOCOL_DATASIZE_16BIT:
bogdanm	0:9b334a45a8ff	1527	hsai->Init.DataSize = SAI_DATASIZE_16;
bogdanm	0:9b334a45a8ff	1528	hsai->FrameInit.FrameLength = 16 * nbslot;
bogdanm	0:9b334a45a8ff	1529	hsai->SlotInit.SlotSize = SAI_SLOTSIZE_16B;
bogdanm	0:9b334a45a8ff	1530	break;
bogdanm	0:9b334a45a8ff	1531	case SAI_PROTOCOL_DATASIZE_16BITEXTENDED :
bogdanm	0:9b334a45a8ff	1532	hsai->Init.DataSize = SAI_DATASIZE_16;
bogdanm	0:9b334a45a8ff	1533	hsai->FrameInit.FrameLength = 32 * nbslot;
bogdanm	0:9b334a45a8ff	1534	hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B;
bogdanm	0:9b334a45a8ff	1535	break;
bogdanm	0:9b334a45a8ff	1536
bogdanm	0:9b334a45a8ff	1537	case SAI_PROTOCOL_DATASIZE_32BIT:
bogdanm	0:9b334a45a8ff	1538	hsai->Init.DataSize = SAI_DATASIZE_32;
bogdanm	0:9b334a45a8ff	1539	hsai->FrameInit.FrameLength = 32 * nbslot;
bogdanm	0:9b334a45a8ff	1540	hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B;
bogdanm	0:9b334a45a8ff	1541	break;
bogdanm	0:9b334a45a8ff	1542	default :
bogdanm	0:9b334a45a8ff	1543	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1544	}
bogdanm	0:9b334a45a8ff	1545
bogdanm	0:9b334a45a8ff	1546	return HAL_OK;
bogdanm	0:9b334a45a8ff	1547	}
bogdanm	0:9b334a45a8ff	1548
bogdanm	0:9b334a45a8ff	1549	/**
bogdanm	0:9b334a45a8ff	1550	* @brief Fill the fifo
bogdanm	0:9b334a45a8ff	1551	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1552	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1553	* @retval None.
bogdanm	0:9b334a45a8ff	1554	*/
bogdanm	0:9b334a45a8ff	1555	static void SAI_FillFifo(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1556	{
bogdanm	0:9b334a45a8ff	1557	/* fill the fifo with data before to enabled the SAI */
bogdanm	0:9b334a45a8ff	1558	while((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_FULL)
bogdanm	0:9b334a45a8ff	1559	{
bogdanm	0:9b334a45a8ff	1560	if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
bogdanm	0:9b334a45a8ff	1561	{
bogdanm	0:9b334a45a8ff	1562	hsai->Instance->DR = (*hsai->pBuffPtr++);
bogdanm	0:9b334a45a8ff	1563	}
bogdanm	0:9b334a45a8ff	1564	else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
bogdanm	0:9b334a45a8ff	1565	{
bogdanm	0:9b334a45a8ff	1566	hsai->Instance->DR = ((uint32_t )hsai->pBuffPtr);
bogdanm	0:9b334a45a8ff	1567	hsai->pBuffPtr+= 2;
bogdanm	0:9b334a45a8ff	1568	}
bogdanm	0:9b334a45a8ff	1569	else
bogdanm	0:9b334a45a8ff	1570	{
bogdanm	0:9b334a45a8ff	1571	hsai->Instance->DR = ((uint32_t )hsai->pBuffPtr);
bogdanm	0:9b334a45a8ff	1572	hsai->pBuffPtr+= 4;
bogdanm	0:9b334a45a8ff	1573	}
bogdanm	0:9b334a45a8ff	1574	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	1575	}
bogdanm	0:9b334a45a8ff	1576	}
bogdanm	0:9b334a45a8ff	1577
bogdanm	0:9b334a45a8ff	1578	/**
bogdanm	0:9b334a45a8ff	1579	* @brief return the interrupt flag to set according the SAI setup
bogdanm	0:9b334a45a8ff	1580	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1581	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1582	* @param mode : SAI_MODE_DMA or SAI_MODE_IT
bogdanm	0:9b334a45a8ff	1583	* @retval the list of the IT flag to enable
bogdanm	0:9b334a45a8ff	1584	*/
bogdanm	0:9b334a45a8ff	1585	static uint32_t SAI_InterruptFlag(SAI_HandleTypeDef *hsai, uint32_t mode)
bogdanm	0:9b334a45a8ff	1586	{
bogdanm	0:9b334a45a8ff	1587	uint32_t tmpIT = SAI_IT_OVRUDR;
bogdanm	0:9b334a45a8ff	1588
bogdanm	0:9b334a45a8ff	1589	if(mode == SAI_MODE_IT)
bogdanm	0:9b334a45a8ff	1590	{
bogdanm	0:9b334a45a8ff	1591	tmpIT\|= SAI_IT_FREQ;
bogdanm	0:9b334a45a8ff	1592	}
bogdanm	0:9b334a45a8ff	1593
bogdanm	0:9b334a45a8ff	1594	if((hsai->Init.AudioMode == SAI_MODESLAVE_RX) \|\| (hsai->Init.AudioMode == SAI_MODESLAVE_TX))
bogdanm	0:9b334a45a8ff	1595	{
bogdanm	0:9b334a45a8ff	1596	tmpIT\|= SAI_IT_AFSDET \| SAI_IT_LFSDET;
bogdanm	0:9b334a45a8ff	1597	}
bogdanm	0:9b334a45a8ff	1598	else
bogdanm	0:9b334a45a8ff	1599	{
bogdanm	0:9b334a45a8ff	1600	/* hsai has been configured in master mode */
bogdanm	0:9b334a45a8ff	1601	tmpIT\|= SAI_IT_WCKCFG;
bogdanm	0:9b334a45a8ff	1602	}
bogdanm	0:9b334a45a8ff	1603	return tmpIT;
bogdanm	0:9b334a45a8ff	1604	}
bogdanm	0:9b334a45a8ff	1605
bogdanm	0:9b334a45a8ff	1606	/**
mbed_official	19:112740acecfa	1607	* @brief Disable the SAI and wait the disabling
bogdanm	0:9b334a45a8ff	1608	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1609	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1610	* @retval None.
bogdanm	0:9b334a45a8ff	1611	*/
bogdanm	0:9b334a45a8ff	1612	static HAL_StatusTypeDef SAI_Disable(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1613	{
bogdanm	0:9b334a45a8ff	1614	uint32_t tickstart = HAL_GetTick();
bogdanm	0:9b334a45a8ff	1615	HAL_StatusTypeDef status = HAL_OK;
bogdanm	0:9b334a45a8ff	1616
bogdanm	0:9b334a45a8ff	1617	__HAL_SAI_DISABLE(hsai);
bogdanm	0:9b334a45a8ff	1618	while((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != RESET)
bogdanm	0:9b334a45a8ff	1619	{
bogdanm	0:9b334a45a8ff	1620	/* Check for the Timeout */
bogdanm	0:9b334a45a8ff	1621	if((HAL_GetTick() - tickstart ) > SAI_TIMEOUT_VALUE)
bogdanm	0:9b334a45a8ff	1622	{
bogdanm	0:9b334a45a8ff	1623	/* Update error code */
bogdanm	0:9b334a45a8ff	1624	hsai->ErrorCode \|= HAL_SAI_ERROR_TIMEOUT;
bogdanm	0:9b334a45a8ff	1625
bogdanm	0:9b334a45a8ff	1626	status = HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	1627
bogdanm	0:9b334a45a8ff	1628	/* Change the SAI state */
bogdanm	0:9b334a45a8ff	1629	HAL_SAI_ErrorCallback(hsai);
bogdanm	0:9b334a45a8ff	1630	}
bogdanm	0:9b334a45a8ff	1631	}
bogdanm	0:9b334a45a8ff	1632	return status;
bogdanm	0:9b334a45a8ff	1633	}
bogdanm	0:9b334a45a8ff	1634
bogdanm	0:9b334a45a8ff	1635	/**
bogdanm	0:9b334a45a8ff	1636	* @brief Tx Handler for Transmit in Interrupt mode 8Bit transfer
bogdanm	0:9b334a45a8ff	1637	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1638	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1639	* @retval None.
bogdanm	0:9b334a45a8ff	1640	*/
bogdanm	0:9b334a45a8ff	1641	static void SAI_Transmit_IT8Bit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1642	{
bogdanm	0:9b334a45a8ff	1643	/* Write data on DR register */
bogdanm	0:9b334a45a8ff	1644	hsai->Instance->DR = (*hsai->pBuffPtr++);
bogdanm	0:9b334a45a8ff	1645	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	1646
bogdanm	0:9b334a45a8ff	1647	/* Handle the end of the transmission */
bogdanm	0:9b334a45a8ff	1648	if(hsai->XferCount == 0)
bogdanm	0:9b334a45a8ff	1649	{
bogdanm	0:9b334a45a8ff	1650	/* Disable FREQ and OVRUDR interrupts */
bogdanm	0:9b334a45a8ff	1651	__HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
bogdanm	0:9b334a45a8ff	1652	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1653	HAL_SAI_TxCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1654	}
bogdanm	0:9b334a45a8ff	1655	}
bogdanm	0:9b334a45a8ff	1656
bogdanm	0:9b334a45a8ff	1657	/**
bogdanm	0:9b334a45a8ff	1658	* @brief Tx Handler for Transmit in Interrupt mode for 16Bit transfer
bogdanm	0:9b334a45a8ff	1659	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1660	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1661	* @retval None.
bogdanm	0:9b334a45a8ff	1662	*/
bogdanm	0:9b334a45a8ff	1663	static void SAI_Transmit_IT16Bit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1664	{
bogdanm	0:9b334a45a8ff	1665	/* Write data on DR register */
bogdanm	0:9b334a45a8ff	1666	hsai->Instance->DR = (uint16_t )hsai->pBuffPtr;
bogdanm	0:9b334a45a8ff	1667	hsai->pBuffPtr+=2;
bogdanm	0:9b334a45a8ff	1668	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	1669
bogdanm	0:9b334a45a8ff	1670	/* Handle the end of the transmission */
bogdanm	0:9b334a45a8ff	1671	if(hsai->XferCount == 0)
bogdanm	0:9b334a45a8ff	1672	{
bogdanm	0:9b334a45a8ff	1673	/* Disable FREQ and OVRUDR interrupts */
bogdanm	0:9b334a45a8ff	1674	__HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
bogdanm	0:9b334a45a8ff	1675	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1676	HAL_SAI_TxCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1677	}
bogdanm	0:9b334a45a8ff	1678	}
bogdanm	0:9b334a45a8ff	1679
bogdanm	0:9b334a45a8ff	1680	/**
bogdanm	0:9b334a45a8ff	1681	* @brief Tx Handler for Transmit in Interrupt mode for 32Bit transfer
bogdanm	0:9b334a45a8ff	1682	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1683	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1684	* @retval None.
bogdanm	0:9b334a45a8ff	1685	*/
bogdanm	0:9b334a45a8ff	1686	static void SAI_Transmit_IT32Bit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1687	{
bogdanm	0:9b334a45a8ff	1688	/* Write data on DR register */
bogdanm	0:9b334a45a8ff	1689	hsai->Instance->DR = (uint32_t )hsai->pBuffPtr;
bogdanm	0:9b334a45a8ff	1690	hsai->pBuffPtr+=4;
bogdanm	0:9b334a45a8ff	1691	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	1692
bogdanm	0:9b334a45a8ff	1693	/* Handle the end of the transmission */
bogdanm	0:9b334a45a8ff	1694	if(hsai->XferCount == 0)
bogdanm	0:9b334a45a8ff	1695	{
bogdanm	0:9b334a45a8ff	1696	/* Disable FREQ and OVRUDR interrupts */
bogdanm	0:9b334a45a8ff	1697	__HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
bogdanm	0:9b334a45a8ff	1698	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1699	HAL_SAI_TxCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1700	}
bogdanm	0:9b334a45a8ff	1701	}
bogdanm	0:9b334a45a8ff	1702
bogdanm	0:9b334a45a8ff	1703	/**
bogdanm	0:9b334a45a8ff	1704	* @brief Rx Handler for Receive in Interrupt mode 8Bit transfer
bogdanm	0:9b334a45a8ff	1705	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1706	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1707	* @retval None.
bogdanm	0:9b334a45a8ff	1708	*/
bogdanm	0:9b334a45a8ff	1709	static void SAI_Receive_IT8Bit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1710	{
bogdanm	0:9b334a45a8ff	1711	/* Receive data */
bogdanm	0:9b334a45a8ff	1712	(*hsai->pBuffPtr++) = hsai->Instance->DR;
bogdanm	0:9b334a45a8ff	1713	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	1714
bogdanm	0:9b334a45a8ff	1715	/* Check end of the transfer */
bogdanm	0:9b334a45a8ff	1716	if(hsai->XferCount == 0)
bogdanm	0:9b334a45a8ff	1717	{
bogdanm	0:9b334a45a8ff	1718	/* Disable TXE and OVRUDR interrupts */
bogdanm	0:9b334a45a8ff	1719	__HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
bogdanm	0:9b334a45a8ff	1720
bogdanm	0:9b334a45a8ff	1721	/* Clear the SAI Overrun flag */
bogdanm	0:9b334a45a8ff	1722	__HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
bogdanm	0:9b334a45a8ff	1723
bogdanm	0:9b334a45a8ff	1724	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1725	HAL_SAI_RxCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1726	}
bogdanm	0:9b334a45a8ff	1727	}
bogdanm	0:9b334a45a8ff	1728
bogdanm	0:9b334a45a8ff	1729	/**
bogdanm	0:9b334a45a8ff	1730	* @brief Rx Handler for Receive in Interrupt mode for 16Bit transfer
bogdanm	0:9b334a45a8ff	1731	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1732	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1733	* @retval None.
bogdanm	0:9b334a45a8ff	1734	*/
bogdanm	0:9b334a45a8ff	1735	static void SAI_Receive_IT16Bit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1736	{
bogdanm	0:9b334a45a8ff	1737	/* Receive data */
bogdanm	0:9b334a45a8ff	1738	(uint16_t)hsai->pBuffPtr = hsai->Instance->DR;
bogdanm	0:9b334a45a8ff	1739	hsai->pBuffPtr+=2;
bogdanm	0:9b334a45a8ff	1740	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	1741
bogdanm	0:9b334a45a8ff	1742	/* Check end of the transfer */
bogdanm	0:9b334a45a8ff	1743	if(hsai->XferCount == 0)
bogdanm	0:9b334a45a8ff	1744	{
bogdanm	0:9b334a45a8ff	1745	/* Disable TXE and OVRUDR interrupts */
bogdanm	0:9b334a45a8ff	1746	__HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
bogdanm	0:9b334a45a8ff	1747
bogdanm	0:9b334a45a8ff	1748	/* Clear the SAI Overrun flag */
bogdanm	0:9b334a45a8ff	1749	__HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
bogdanm	0:9b334a45a8ff	1750
bogdanm	0:9b334a45a8ff	1751	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1752	HAL_SAI_RxCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1753	}
bogdanm	0:9b334a45a8ff	1754	}
bogdanm	0:9b334a45a8ff	1755	/**
bogdanm	0:9b334a45a8ff	1756	* @brief Rx Handler for Receive in Interrupt mode for 32Bit transfer
bogdanm	0:9b334a45a8ff	1757	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1758	* the configuration information for SAI module.
bogdanm	0:9b334a45a8ff	1759	* @retval None.
bogdanm	0:9b334a45a8ff	1760	*/
bogdanm	0:9b334a45a8ff	1761	static void SAI_Receive_IT32Bit(SAI_HandleTypeDef *hsai)
bogdanm	0:9b334a45a8ff	1762	{
bogdanm	0:9b334a45a8ff	1763	/* Receive data */
bogdanm	0:9b334a45a8ff	1764	(uint32_t)hsai->pBuffPtr = hsai->Instance->DR;
bogdanm	0:9b334a45a8ff	1765	hsai->pBuffPtr+=4;
bogdanm	0:9b334a45a8ff	1766	hsai->XferCount--;
bogdanm	0:9b334a45a8ff	1767
bogdanm	0:9b334a45a8ff	1768	/* Check end of the transfer */
bogdanm	0:9b334a45a8ff	1769	if(hsai->XferCount == 0)
bogdanm	0:9b334a45a8ff	1770	{
bogdanm	0:9b334a45a8ff	1771	/* Disable TXE and OVRUDR interrupts */
bogdanm	0:9b334a45a8ff	1772	__HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
bogdanm	0:9b334a45a8ff	1773
bogdanm	0:9b334a45a8ff	1774	/* Clear the SAI Overrun flag */
bogdanm	0:9b334a45a8ff	1775	__HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
bogdanm	0:9b334a45a8ff	1776
bogdanm	0:9b334a45a8ff	1777	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1778	HAL_SAI_RxCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1779	}
bogdanm	0:9b334a45a8ff	1780	}
bogdanm	0:9b334a45a8ff	1781
bogdanm	0:9b334a45a8ff	1782	/**
bogdanm	0:9b334a45a8ff	1783	* @brief DMA SAI transmit process complete callback.
bogdanm	0:9b334a45a8ff	1784	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1785	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1786	* @retval None
bogdanm	0:9b334a45a8ff	1787	*/
bogdanm	0:9b334a45a8ff	1788	static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1789	{
bogdanm	0:9b334a45a8ff	1790	uint32_t tickstart = 0;
bogdanm	0:9b334a45a8ff	1791
bogdanm	0:9b334a45a8ff	1792	SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef)((DMA_HandleTypeDef )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1793
bogdanm	0:9b334a45a8ff	1794	if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
bogdanm	0:9b334a45a8ff	1795	{
bogdanm	0:9b334a45a8ff	1796	hsai->XferCount = 0;
bogdanm	0:9b334a45a8ff	1797
bogdanm	0:9b334a45a8ff	1798	/* Disable SAI Tx DMA Request */
bogdanm	0:9b334a45a8ff	1799	hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
bogdanm	0:9b334a45a8ff	1800
bogdanm	0:9b334a45a8ff	1801	/* Get tick */
bogdanm	0:9b334a45a8ff	1802	tickstart = HAL_GetTick();
bogdanm	0:9b334a45a8ff	1803
bogdanm	0:9b334a45a8ff	1804	/* Set timeout: 10 is the max delay to send the remaining data in the SAI FIFO */
bogdanm	0:9b334a45a8ff	1805	/* Wait until FIFO is empty */
bogdanm	0:9b334a45a8ff	1806	while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FLVL) != RESET)
bogdanm	0:9b334a45a8ff	1807	{
bogdanm	0:9b334a45a8ff	1808	/* Check for the Timeout */
bogdanm	0:9b334a45a8ff	1809	if((HAL_GetTick() - tickstart ) > SAI_TIMEOUT_VALUE)
bogdanm	0:9b334a45a8ff	1810	{
bogdanm	0:9b334a45a8ff	1811	/* Update error code */
bogdanm	0:9b334a45a8ff	1812	hsai->ErrorCode \|= HAL_SAI_ERROR_TIMEOUT;
bogdanm	0:9b334a45a8ff	1813
bogdanm	0:9b334a45a8ff	1814	/* Change the SAI state */
bogdanm	0:9b334a45a8ff	1815	HAL_SAI_ErrorCallback(hsai);
bogdanm	0:9b334a45a8ff	1816	}
bogdanm	0:9b334a45a8ff	1817	}
bogdanm	0:9b334a45a8ff	1818
bogdanm	0:9b334a45a8ff	1819	/* Stop the interrupts error handling */
bogdanm	0:9b334a45a8ff	1820	__HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA));
bogdanm	0:9b334a45a8ff	1821
bogdanm	0:9b334a45a8ff	1822	hsai->State= HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1823	}
bogdanm	0:9b334a45a8ff	1824	HAL_SAI_TxCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1825	}
bogdanm	0:9b334a45a8ff	1826
bogdanm	0:9b334a45a8ff	1827	/**
bogdanm	0:9b334a45a8ff	1828	* @brief DMA SAI transmit process half complete callback
bogdanm	0:9b334a45a8ff	1829	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1830	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1831	* @retval None
bogdanm	0:9b334a45a8ff	1832	*/
bogdanm	0:9b334a45a8ff	1833	static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1834	{
bogdanm	0:9b334a45a8ff	1835	SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
bogdanm	0:9b334a45a8ff	1836
bogdanm	0:9b334a45a8ff	1837	HAL_SAI_TxHalfCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1838	}
bogdanm	0:9b334a45a8ff	1839
bogdanm	0:9b334a45a8ff	1840	/**
bogdanm	0:9b334a45a8ff	1841	* @brief DMA SAI receive process complete callback.
bogdanm	0:9b334a45a8ff	1842	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1843	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1844	* @retval None
bogdanm	0:9b334a45a8ff	1845	*/
bogdanm	0:9b334a45a8ff	1846	static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1847	{
bogdanm	0:9b334a45a8ff	1848	SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1849	if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
bogdanm	0:9b334a45a8ff	1850	{
bogdanm	0:9b334a45a8ff	1851	/* Disable Rx DMA Request */
bogdanm	0:9b334a45a8ff	1852	hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
bogdanm	0:9b334a45a8ff	1853	hsai->XferCount = 0;
bogdanm	0:9b334a45a8ff	1854
bogdanm	0:9b334a45a8ff	1855	/* Stop the interrupts error handling */
bogdanm	0:9b334a45a8ff	1856	__HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA));
bogdanm	0:9b334a45a8ff	1857
bogdanm	0:9b334a45a8ff	1858	hsai->State = HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1859	}
bogdanm	0:9b334a45a8ff	1860	HAL_SAI_RxCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1861	}
bogdanm	0:9b334a45a8ff	1862
bogdanm	0:9b334a45a8ff	1863	/**
bogdanm	0:9b334a45a8ff	1864	* @brief DMA SAI receive process half complete callback
bogdanm	0:9b334a45a8ff	1865	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1866	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1867	* @retval None
bogdanm	0:9b334a45a8ff	1868	*/
bogdanm	0:9b334a45a8ff	1869	static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1870	{
bogdanm	0:9b334a45a8ff	1871	SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
bogdanm	0:9b334a45a8ff	1872
bogdanm	0:9b334a45a8ff	1873	HAL_SAI_RxHalfCpltCallback(hsai);
bogdanm	0:9b334a45a8ff	1874	}
bogdanm	0:9b334a45a8ff	1875	/**
bogdanm	0:9b334a45a8ff	1876	* @brief DMA SAI communication error callback.
bogdanm	0:9b334a45a8ff	1877	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1878	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1879	* @retval None
bogdanm	0:9b334a45a8ff	1880	*/
bogdanm	0:9b334a45a8ff	1881	static void SAI_DMAError(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1882	{
bogdanm	0:9b334a45a8ff	1883	SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1884
bogdanm	0:9b334a45a8ff	1885	/* Stop the DMA transfer */
bogdanm	0:9b334a45a8ff	1886	HAL_SAI_DMAStop(hsai);
bogdanm	0:9b334a45a8ff	1887
bogdanm	0:9b334a45a8ff	1888	/* Set the SAI state ready to be able to start again the process */
bogdanm	0:9b334a45a8ff	1889	hsai->State= HAL_SAI_STATE_READY;
bogdanm	0:9b334a45a8ff	1890	HAL_SAI_ErrorCallback(hsai);
bogdanm	0:9b334a45a8ff	1891
bogdanm	0:9b334a45a8ff	1892	hsai->XferCount = 0;
bogdanm	0:9b334a45a8ff	1893	}
bogdanm	0:9b334a45a8ff	1894
bogdanm	0:9b334a45a8ff	1895	/**
bogdanm	0:9b334a45a8ff	1896	* @}
bogdanm	0:9b334a45a8ff	1897	*/
bogdanm	0:9b334a45a8ff	1898
mbed_official	19:112740acecfa	1899	#endif /* STM32F427xx \|\| STM32F437xx \|\| STM32F429xx \|\| STM32F439xx \|\| STM32F446xx \|\| STM32F469xx \|\| STM32F479xx */
bogdanm	0:9b334a45a8ff	1900	#endif /* HAL_SAI_MODULE_ENABLED */
bogdanm	0:9b334a45a8ff	1901	/**
bogdanm	0:9b334a45a8ff	1902	* @}
bogdanm	0:9b334a45a8ff	1903	*/
bogdanm	0:9b334a45a8ff	1904
bogdanm	0:9b334a45a8ff	1905	/**
bogdanm	0:9b334a45a8ff	1906	* @}
bogdanm	0:9b334a45a8ff	1907	*/
bogdanm	0:9b334a45a8ff	1908
bogdanm	0:9b334a45a8ff	1909	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Library
Created:	16 May 2016
Imports:	1
Forks:	0
Commits:	130
Dependents:	1
Dependencies:	0
Followers:	1

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_sai.c@19:112740acecfa, 2015-11-10 (annotated)

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