mbed-src-kl05 - mbed library sources

Users » shaoziyang » Code » mbed-src-kl05

mbed library sources

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_sai.c@226:b062af740e40, 2014-06-11 (annotated)

Committer:: mbed_official
Date:: Wed Jun 11 09:45:09 2014 +0100
Revision:: 226:b062af740e40
Parent:: 106:ced8cbb51063

Synchronized with git revision 42deb9ac55f9bdf9835e9c41dc757117d344ffda



Full URL: https://github.com/mbedmicro/mbed/commit/42deb9ac55f9bdf9835e9c41dc757117d344ffda/



[NUCLEO_F401RE] Remove call to Systick + bug fixes

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	87:085cde657901	1	/**
mbed_official	87:085cde657901	2	******************************************************************************
mbed_official	87:085cde657901	3	* @file stm32f4xx_hal_sai.c
mbed_official	87:085cde657901	4	* @author MCD Application Team
mbed_official	226:b062af740e40	5	* @version V1.1.0RC2
mbed_official	226:b062af740e40	6	* @date 14-May-2014
mbed_official	87:085cde657901	7	* @brief SAI HAL module driver.
mbed_official	87:085cde657901	8	* This file provides firmware functions to manage the following
mbed_official	87:085cde657901	9	* functionalities of the Serial Audio Interface (SAI) peripheral:
mbed_official	87:085cde657901	10	* + Initialization/de-initialization functions
mbed_official	87:085cde657901	11	* + I/O operation functions
mbed_official	87:085cde657901	12	* + Peripheral Control functions
mbed_official	87:085cde657901	13	* + Peripheral State functions
mbed_official	87:085cde657901	14	*
mbed_official	87:085cde657901	15	@verbatim
mbed_official	87:085cde657901	16	==============================================================================
mbed_official	87:085cde657901	17	##### How to use this driver #####
mbed_official	87:085cde657901	18	==============================================================================
mbed_official	87:085cde657901	19
mbed_official	87:085cde657901	20	[..]
mbed_official	226:b062af740e40	21	The SAI HAL driver can be used as follows:
mbed_official	87:085cde657901	22
mbed_official	87:085cde657901	23	(#) Declare a SAI_HandleTypeDef handle structure.
mbed_official	226:b062af740e40	24	(#) Initialize the SAI low level resources by implementing the HAL_SAI_MspInit() API:
mbed_official	87:085cde657901	25	(##) Enable the SAI interface clock.
mbed_official	87:085cde657901	26	(##) SAI pins configuration:
mbed_official	87:085cde657901	27	(+++) Enable the clock for the SAI GPIOs.
mbed_official	87:085cde657901	28	(+++) Configure these SAI pins as alternate function pull-up.
mbed_official	87:085cde657901	29	(##) NVIC configuration if you need to use interrupt process (HAL_SAI_Transmit_IT()
mbed_official	87:085cde657901	30	and HAL_SAI_Receive_IT() APIs):
mbed_official	87:085cde657901	31	(+++) Configure the SAI interrupt priority.
mbed_official	87:085cde657901	32	(+++) Enable the NVIC SAI IRQ handle.
mbed_official	87:085cde657901	33
mbed_official	87:085cde657901	34	(##) DMA Configuration if you need to use DMA process (HAL_SAI_Transmit_DMA()
mbed_official	87:085cde657901	35	and HAL_SAI_Receive_DMA() APIs):
mbed_official	87:085cde657901	36	(+++) Declare a DMA handle structure for the Tx/Rx stream.
mbed_official	87:085cde657901	37	(+++) Enable the DMAx interface clock.
mbed_official	87:085cde657901	38	(+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
mbed_official	87:085cde657901	39	(+++) Configure the DMA Tx/Rx Stream.
mbed_official	87:085cde657901	40	(+++) Associate the initialized DMA handle to the SAI DMA Tx/Rx handle.
mbed_official	87:085cde657901	41	(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the
mbed_official	87:085cde657901	42	DMA Tx/Rx Stream.
mbed_official	87:085cde657901	43
mbed_official	87:085cde657901	44	(#) Program the SAI Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity
mbed_official	87:085cde657901	45	using HAL_SAI_Init() function.
mbed_official	87:085cde657901	46
mbed_official	87:085cde657901	47	-@- The specific SAI interrupts (FIFO request and Overrun underrun interrupt)
mbed_official	87:085cde657901	48	will be managed using the macros __SAI_ENABLE_IT() and __SAI_DISABLE_IT()
mbed_official	87:085cde657901	49	inside the transmit and receive process.
mbed_official	87:085cde657901	50
mbed_official	87:085cde657901	51	[..]
mbed_official	87:085cde657901	52	(@) Make sure that either:
mbed_official	87:085cde657901	53	(+@) I2S PLL is configured or
mbed_official	87:085cde657901	54	(+@) SAI PLL is configured or
mbed_official	87:085cde657901	55	(+@) External clock source is configured after setting correctly
mbed_official	87:085cde657901	56	the define constant EXTERNAL_CLOCK_VALUE in the stm32f4xx_hal_conf.h file.
mbed_official	87:085cde657901	57
mbed_official	87:085cde657901	58	[..]
mbed_official	226:b062af740e40	59	(@) In master Tx mode: enabling the audio block immediately generates the bit clock
mbed_official	87:085cde657901	60	for the external slaves even if there is no data in the FIFO, However FS signal
mbed_official	87:085cde657901	61	generation is conditioned by the presence of data in the FIFO.
mbed_official	87:085cde657901	62
mbed_official	87:085cde657901	63	[..]
mbed_official	226:b062af740e40	64	(@) In master Rx mode: enabling the audio block immediately generates the bit clock
mbed_official	87:085cde657901	65	and FS signal for the external slaves.
mbed_official	87:085cde657901	66
mbed_official	87:085cde657901	67	[..]
mbed_official	87:085cde657901	68	(@) It is mandatory to respect the following conditions in order to avoid bad SAI behavior:
mbed_official	87:085cde657901	69	(+@) First bit Offset <= (SLOT size - Data size)
mbed_official	87:085cde657901	70	(+@) Data size <= SLOT size
mbed_official	87:085cde657901	71	(+@) Number of SLOT x SLOT size = Frame length
mbed_official	87:085cde657901	72	(+@) The number of slots should be even when SAI_FS_CHANNEL_IDENTIFICATION is selected.
mbed_official	87:085cde657901	73
mbed_official	87:085cde657901	74	[..]
mbed_official	226:b062af740e40	75	Three operation modes are available within this driver :
mbed_official	87:085cde657901	76
mbed_official	87:085cde657901	77	* Polling mode IO operation *
mbed_official	87:085cde657901	78	=================================
mbed_official	87:085cde657901	79	[..]
mbed_official	87:085cde657901	80	(+) Send an amount of data in blocking mode using HAL_SAI_Transmit()
mbed_official	87:085cde657901	81	(+) Receive an amount of data in blocking mode using HAL_SAI_Receive()
mbed_official	87:085cde657901	82
mbed_official	87:085cde657901	83	* Interrupt mode IO operation *
mbed_official	87:085cde657901	84	===================================
mbed_official	87:085cde657901	85	[..]
mbed_official	87:085cde657901	86	(+) Send an amount of data in non blocking mode using HAL_SAI_Transmit_IT()
mbed_official	87:085cde657901	87	(+) At transmission end of transfer HAL_SAI_TxCpltCallback is executed and user can
mbed_official	87:085cde657901	88	add his own code by customization of function pointer HAL_SAI_TxCpltCallback
mbed_official	87:085cde657901	89	(+) Receive an amount of data in non blocking mode using HAL_SAI_Receive_IT()
mbed_official	87:085cde657901	90	(+) At reception end of transfer HAL_SAI_RxCpltCallback is executed and user can
mbed_official	87:085cde657901	91	add his own code by customization of function pointer HAL_SAI_RxCpltCallback
mbed_official	87:085cde657901	92	(+) In case of transfer Error, HAL_SAI_ErrorCallback() function is executed and user can
mbed_official	87:085cde657901	93	add his own code by customization of function pointer HAL_SAI_ErrorCallback
mbed_official	87:085cde657901	94
mbed_official	87:085cde657901	95	* DMA mode IO operation *
mbed_official	87:085cde657901	96	==============================
mbed_official	87:085cde657901	97	[..]
mbed_official	87:085cde657901	98	(+) Send an amount of data in non blocking mode (DMA) using HAL_SAI_Transmit_DMA()
mbed_official	87:085cde657901	99	(+) At transmission end of transfer HAL_SAI_TxCpltCallback is executed and user can
mbed_official	87:085cde657901	100	add his own code by customization of function pointer HAL_SAI_TxCpltCallback
mbed_official	87:085cde657901	101	(+) Receive an amount of data in non blocking mode (DMA) using HAL_SAI_Receive_DMA()
mbed_official	87:085cde657901	102	(+) At reception end of transfer HAL_SAI_RxCpltCallback is executed and user can
mbed_official	87:085cde657901	103	add his own code by customization of function pointer HAL_SAI_RxCpltCallback
mbed_official	87:085cde657901	104	(+) In case of transfer Error, HAL_SAI_ErrorCallback() function is executed and user can
mbed_official	87:085cde657901	105	add his own code by customization of function pointer HAL_SAI_ErrorCallback
mbed_official	87:085cde657901	106	(+) Pause the DMA Transfer using HAL_SAI_DMAPause()
mbed_official	87:085cde657901	107	(+) Resume the DMA Transfer using HAL_SAI_DMAResume()
mbed_official	87:085cde657901	108	(+) Stop the DMA Transfer using HAL_SAI_DMAStop()
mbed_official	87:085cde657901	109
mbed_official	87:085cde657901	110	* SAI HAL driver macros list *
mbed_official	87:085cde657901	111	=============================================
mbed_official	87:085cde657901	112	[..]
mbed_official	226:b062af740e40	113	Below the list of most used macros in USART HAL driver :
mbed_official	87:085cde657901	114
mbed_official	87:085cde657901	115	(+) __HAL_SAI_ENABLE: Enable the SAI peripheral
mbed_official	87:085cde657901	116	(+) __HAL_SAI_DISABLE: Disable the SAI peripheral
mbed_official	87:085cde657901	117	(+) __HAL_SAI_ENABLE_IT : Enable the specified SAI interrupts
mbed_official	87:085cde657901	118	(+) __HAL_SAI_DISABLE_IT : Disable the specified SAI interrupts
mbed_official	87:085cde657901	119	(+) __HAL_SAI_GET_IT_SOURCE: Check if the specified SAI interrupt source is
mbed_official	87:085cde657901	120	enabled or disabled
mbed_official	87:085cde657901	121	(+) __HAL_SAI_GET_FLAG: Check whether the specified SAI flag is set or not
mbed_official	87:085cde657901	122
mbed_official	87:085cde657901	123	@endverbatim
mbed_official	87:085cde657901	124	******************************************************************************
mbed_official	87:085cde657901	125	* @attention
mbed_official	87:085cde657901	126	*
mbed_official	87:085cde657901	127	* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official	87:085cde657901	128	*
mbed_official	87:085cde657901	129	* Redistribution and use in source and binary forms, with or without modification,
mbed_official	87:085cde657901	130	* are permitted provided that the following conditions are met:
mbed_official	87:085cde657901	131	* 1. Redistributions of source code must retain the above copyright notice,
mbed_official	87:085cde657901	132	* this list of conditions and the following disclaimer.
mbed_official	87:085cde657901	133	* 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official	87:085cde657901	134	* this list of conditions and the following disclaimer in the documentation
mbed_official	87:085cde657901	135	* and/or other materials provided with the distribution.
mbed_official	87:085cde657901	136	* 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official	87:085cde657901	137	* may be used to endorse or promote products derived from this software
mbed_official	87:085cde657901	138	* without specific prior written permission.
mbed_official	87:085cde657901	139	*
mbed_official	87:085cde657901	140	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official	87:085cde657901	141	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official	87:085cde657901	142	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official	87:085cde657901	143	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official	87:085cde657901	144	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official	87:085cde657901	145	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official	87:085cde657901	146	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official	87:085cde657901	147	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official	87:085cde657901	148	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official	87:085cde657901	149	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official	87:085cde657901	150	*
mbed_official	87:085cde657901	151	******************************************************************************
mbed_official	87:085cde657901	152	*/
mbed_official	87:085cde657901	153
mbed_official	87:085cde657901	154	/* Includes ------------------------------------------------------------------*/
mbed_official	87:085cde657901	155	#include "stm32f4xx_hal.h"
mbed_official	87:085cde657901	156
mbed_official	87:085cde657901	157	/** @addtogroup STM32F4xx_HAL_Driver
mbed_official	87:085cde657901	158	* @{
mbed_official	87:085cde657901	159	*/
mbed_official	87:085cde657901	160
mbed_official	87:085cde657901	161	/** @defgroup SAI
mbed_official	87:085cde657901	162	* @brief SAI HAL module driver
mbed_official	87:085cde657901	163	* @{
mbed_official	87:085cde657901	164	*/
mbed_official	87:085cde657901	165
mbed_official	87:085cde657901	166	#ifdef HAL_SAI_MODULE_ENABLED
mbed_official	87:085cde657901	167
mbed_official	87:085cde657901	168	#if defined(STM32F427xx) \|\| defined(STM32F437xx) \|\| defined(STM32F429xx) \|\| defined(STM32F439xx)
mbed_official	87:085cde657901	169
mbed_official	87:085cde657901	170	/* Private typedef -----------------------------------------------------------*/
mbed_official	87:085cde657901	171	/* Private define ------------------------------------------------------------*/
mbed_official	87:085cde657901	172	/* SAI registers Masks */
mbed_official	87:085cde657901	173	#define CR1_CLEAR_MASK ((uint32_t)0xFF07C010)
mbed_official	87:085cde657901	174	#define FRCR_CLEAR_MASK ((uint32_t)0xFFF88000)
mbed_official	87:085cde657901	175	#define SLOTR_CLEAR_MASK ((uint32_t)0x0000F020)
mbed_official	87:085cde657901	176
mbed_official	87:085cde657901	177	/* Private macro -------------------------------------------------------------*/
mbed_official	87:085cde657901	178	/* Private variables ---------------------------------------------------------*/
mbed_official	87:085cde657901	179	/* Private function prototypes -----------------------------------------------*/
mbed_official	87:085cde657901	180	static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma);
mbed_official	87:085cde657901	181	static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official	87:085cde657901	182	static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma);
mbed_official	87:085cde657901	183	static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official	87:085cde657901	184	static void SAI_DMAError(DMA_HandleTypeDef *hdma);
mbed_official	87:085cde657901	185
mbed_official	87:085cde657901	186	/* Private functions ---------------------------------------------------------*/
mbed_official	87:085cde657901	187
mbed_official	87:085cde657901	188	/** @defgroup SAI_Private_Functions
mbed_official	87:085cde657901	189	* @{
mbed_official	87:085cde657901	190	*/
mbed_official	87:085cde657901	191
mbed_official	87:085cde657901	192	/** @defgroup SAI_Group1 Initialization and de-initialization functions
mbed_official	87:085cde657901	193	* @brief Initialization and Configuration functions
mbed_official	87:085cde657901	194	*
mbed_official	87:085cde657901	195	@verbatim
mbed_official	87:085cde657901	196	===============================================================================
mbed_official	87:085cde657901	197	##### Initialization and de-initialization functions #####
mbed_official	87:085cde657901	198	===============================================================================
mbed_official	87:085cde657901	199	[..] This subsection provides a set of functions allowing to initialize and
mbed_official	87:085cde657901	200	de-initialize the SAIx peripheral:
mbed_official	87:085cde657901	201
mbed_official	226:b062af740e40	202	(+) User must implement HAL_SAI_MspInit() function in which he configures
mbed_official	87:085cde657901	203	all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
mbed_official	87:085cde657901	204
mbed_official	87:085cde657901	205	(+) Call the function HAL_SAI_Init() to configure the selected device with
mbed_official	87:085cde657901	206	the selected configuration:
mbed_official	87:085cde657901	207	(++) Mode (Master/slave TX/RX)
mbed_official	87:085cde657901	208	(++) Protocol
mbed_official	87:085cde657901	209	(++) Data Size
mbed_official	87:085cde657901	210	(++) MCLK Output
mbed_official	87:085cde657901	211	(++) Audio frequency
mbed_official	87:085cde657901	212	(++) FIFO Threshold
mbed_official	87:085cde657901	213	(++) Frame Config
mbed_official	87:085cde657901	214	(++) Slot Config
mbed_official	87:085cde657901	215
mbed_official	87:085cde657901	216	(+) Call the function HAL_SAI_DeInit() to restore the default configuration
mbed_official	87:085cde657901	217	of the selected SAI peripheral.
mbed_official	87:085cde657901	218
mbed_official	87:085cde657901	219	@endverbatim
mbed_official	87:085cde657901	220	* @{
mbed_official	87:085cde657901	221	*/
mbed_official	87:085cde657901	222
mbed_official	87:085cde657901	223	/**
mbed_official	87:085cde657901	224	* @brief Initializes the SAI according to the specified parameters
mbed_official	87:085cde657901	225	* in the SAI_InitTypeDef and create the associated handle.
mbed_official	226:b062af740e40	226	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	227	* the configuration information for SAI module.
mbed_official	87:085cde657901	228	* @retval HAL status
mbed_official	87:085cde657901	229	*/
mbed_official	87:085cde657901	230	HAL_StatusTypeDef HAL_SAI_Init(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	231	{
mbed_official	87:085cde657901	232	uint32_t tmpreg = 0;
mbed_official	87:085cde657901	233	uint32_t tmpclock = 0, tmp2clock = 0;
mbed_official	87:085cde657901	234	/* This variable used to store the VCO Input (value in Hz) */
mbed_official	87:085cde657901	235	uint32_t vcoinput = 0;
mbed_official	87:085cde657901	236	/* This variable used to store the SAI_CK_x (value in Hz) */
mbed_official	87:085cde657901	237	uint32_t saiclocksource = 0;
mbed_official	87:085cde657901	238
mbed_official	87:085cde657901	239	/* Check the SAI handle allocation */
mbed_official	87:085cde657901	240	if(hsai == NULL)
mbed_official	87:085cde657901	241	{
mbed_official	87:085cde657901	242	return HAL_ERROR;
mbed_official	87:085cde657901	243	}
mbed_official	87:085cde657901	244
mbed_official	87:085cde657901	245	/* Check the SAI Block parameters */
mbed_official	87:085cde657901	246	assert_param(IS_SAI_BLOCK_PROTOCOL(hsai->Init.Protocol));
mbed_official	87:085cde657901	247	assert_param(IS_SAI_BLOCK_MODE(hsai->Init.AudioMode));
mbed_official	87:085cde657901	248	assert_param(IS_SAI_BLOCK_DATASIZE(hsai->Init.DataSize));
mbed_official	87:085cde657901	249	assert_param(IS_SAI_BLOCK_FIRST_BIT(hsai->Init.FirstBit));
mbed_official	87:085cde657901	250	assert_param(IS_SAI_BLOCK_CLOCK_STROBING(hsai->Init.ClockStrobing));
mbed_official	87:085cde657901	251	assert_param(IS_SAI_BLOCK_SYNCHRO(hsai->Init.Synchro));
mbed_official	87:085cde657901	252	assert_param(IS_SAI_BLOCK_OUTPUT_DRIVE(hsai->Init.OutputDrive));
mbed_official	87:085cde657901	253	assert_param(IS_SAI_BLOCK_NODIVIDER(hsai->Init.NoDivider));
mbed_official	87:085cde657901	254	assert_param(IS_SAI_BLOCK_FIFO_THRESHOLD(hsai->Init.FIFOThreshold));
mbed_official	87:085cde657901	255	assert_param(IS_SAI_AUDIO_FREQUENCY(hsai->Init.AudioFrequency));
mbed_official	87:085cde657901	256
mbed_official	87:085cde657901	257	/* Check the SAI Block Frame parameters */
mbed_official	87:085cde657901	258	assert_param(IS_SAI_BLOCK_FRAME_LENGTH(hsai->FrameInit.FrameLength));
mbed_official	87:085cde657901	259	assert_param(IS_SAI_BLOCK_ACTIVE_FRAME(hsai->FrameInit.ActiveFrameLength));
mbed_official	87:085cde657901	260	assert_param(IS_SAI_BLOCK_FS_DEFINITION(hsai->FrameInit.FSDefinition));
mbed_official	87:085cde657901	261	assert_param(IS_SAI_BLOCK_FS_POLARITY(hsai->FrameInit.FSPolarity));
mbed_official	87:085cde657901	262	assert_param(IS_SAI_BLOCK_FS_OFFSET(hsai->FrameInit.FSOffset));
mbed_official	87:085cde657901	263
mbed_official	87:085cde657901	264	/* Check the SAI Block Slot parameters */
mbed_official	87:085cde657901	265	assert_param(IS_SAI_BLOCK_FIRSTBIT_OFFSET(hsai->SlotInit.FirstBitOffset));
mbed_official	87:085cde657901	266	assert_param(IS_SAI_BLOCK_SLOT_SIZE(hsai->SlotInit.SlotSize));
mbed_official	87:085cde657901	267	assert_param(IS_SAI_BLOCK_SLOT_NUMBER(hsai->SlotInit.SlotNumber));
mbed_official	87:085cde657901	268	assert_param(IS_SAI_SLOT_ACTIVE(hsai->SlotInit.SlotActive));
mbed_official	87:085cde657901	269
mbed_official	87:085cde657901	270	if(hsai->State == HAL_SAI_STATE_RESET)
mbed_official	87:085cde657901	271	{
mbed_official	87:085cde657901	272	/* Init the low level hardware : GPIO, CLOCK, NVIC and DMA */
mbed_official	87:085cde657901	273	HAL_SAI_MspInit(hsai);
mbed_official	87:085cde657901	274	}
mbed_official	87:085cde657901	275
mbed_official	87:085cde657901	276	hsai->State = HAL_SAI_STATE_BUSY;
mbed_official	87:085cde657901	277
mbed_official	87:085cde657901	278	/* Disable the selected SAI peripheral */
mbed_official	87:085cde657901	279	__HAL_SAI_DISABLE(hsai);
mbed_official	87:085cde657901	280
mbed_official	87:085cde657901	281	/* SAI Block Configuration ------------------------------------------------------------*/
mbed_official	87:085cde657901	282	/* SAI Block_x CR1 Configuration */
mbed_official	87:085cde657901	283	/* Get the SAI Block_x CR1 value */
mbed_official	87:085cde657901	284	tmpreg = hsai->Instance->CR1;
mbed_official	87:085cde657901	285	/* Clear MODE, PRTCFG, DS, LSBFIRST, CKSTR, SYNCEN, OUTDRIV, NODIV, and MCKDIV bits */
mbed_official	87:085cde657901	286	tmpreg &= CR1_CLEAR_MASK;
mbed_official	87:085cde657901	287	/* Configure SAI_Block_x: Audio Protocol, Data Size, first transmitted bit, Clock strobing
mbed_official	87:085cde657901	288	edge, Synchronization mode, Output drive, Master Divider and FIFO level */
mbed_official	87:085cde657901	289	/* Set PRTCFG bits according to Protocol value */
mbed_official	87:085cde657901	290	/* Set DS bits according to DataSize value */
mbed_official	87:085cde657901	291	/* Set LSBFIRST bit according to FirstBit value */
mbed_official	87:085cde657901	292	/* Set CKSTR bit according to ClockStrobing value */
mbed_official	87:085cde657901	293	/* Set SYNCEN bit according to Synchro value */
mbed_official	87:085cde657901	294	/* Set OUTDRIV bit according to OutputDrive value */
mbed_official	87:085cde657901	295	/* Set NODIV bit according to NoDivider value */
mbed_official	87:085cde657901	296	tmpreg \|= (uint32_t)(hsai->Init.Protocol \|
mbed_official	87:085cde657901	297	hsai->Init.AudioMode \|
mbed_official	87:085cde657901	298	hsai->Init.DataSize \|
mbed_official	87:085cde657901	299	hsai->Init.FirstBit \|
mbed_official	87:085cde657901	300	hsai->Init.ClockStrobing \|
mbed_official	87:085cde657901	301	hsai->Init.Synchro \|
mbed_official	87:085cde657901	302	hsai->Init.OutputDrive \|
mbed_official	87:085cde657901	303	hsai->Init.NoDivider);
mbed_official	87:085cde657901	304	/* Write to SAI_Block_x CR1 */
mbed_official	87:085cde657901	305	hsai->Instance->CR1 = tmpreg;
mbed_official	87:085cde657901	306
mbed_official	87:085cde657901	307	/* SAI Block_x CR2 Configuration */
mbed_official	87:085cde657901	308	/* Get the SAIBlock_x CR2 value */
mbed_official	87:085cde657901	309	tmpreg = hsai->Instance->CR2;
mbed_official	87:085cde657901	310	/* Clear FTH bits */
mbed_official	87:085cde657901	311	tmpreg &= ~(SAI_xCR2_FTH);
mbed_official	87:085cde657901	312	/* Configure the FIFO Level */
mbed_official	87:085cde657901	313	/* Set FTH bits according to SAI_FIFOThreshold value */
mbed_official	87:085cde657901	314	tmpreg \|= (uint32_t)(hsai->Init.FIFOThreshold);
mbed_official	87:085cde657901	315	/* Write to SAI_Block_x CR2 */
mbed_official	87:085cde657901	316	hsai->Instance->CR2 = tmpreg;
mbed_official	87:085cde657901	317
mbed_official	87:085cde657901	318	/* SAI Block_x Frame Configuration -----------------------------------------*/
mbed_official	87:085cde657901	319	/* Get the SAI Block_x FRCR value */
mbed_official	87:085cde657901	320	tmpreg = hsai->Instance->FRCR;
mbed_official	87:085cde657901	321	/* Clear FRL, FSALL, FSDEF, FSPOL, FSOFF bits */
mbed_official	87:085cde657901	322	tmpreg &= FRCR_CLEAR_MASK;
mbed_official	87:085cde657901	323	/* Configure SAI_Block_x Frame: Frame Length, Active Frame Length, Frame Synchronization
mbed_official	87:085cde657901	324	Definition, Frame Synchronization Polarity and Frame Synchronization Polarity */
mbed_official	87:085cde657901	325	/* Set FRL bits according to SAI_FrameLength value */
mbed_official	87:085cde657901	326	/* Set FSALL bits according to SAI_ActiveFrameLength value */
mbed_official	87:085cde657901	327	/* Set FSDEF bit according to SAI_FSDefinition value */
mbed_official	87:085cde657901	328	/* Set FSPOL bit according to SAI_FSPolarity value */
mbed_official	87:085cde657901	329	/* Set FSOFF bit according to SAI_FSOffset value */
mbed_official	87:085cde657901	330	tmpreg \|= (uint32_t)((uint32_t)(hsai->FrameInit.FrameLength - 1) \|
mbed_official	87:085cde657901	331	hsai->FrameInit.FSOffset \|
mbed_official	87:085cde657901	332	hsai->FrameInit.FSDefinition \|
mbed_official	87:085cde657901	333	hsai->FrameInit.FSPolarity \|
mbed_official	87:085cde657901	334	(uint32_t)((hsai->FrameInit.ActiveFrameLength - 1) << 8));
mbed_official	87:085cde657901	335
mbed_official	87:085cde657901	336	/* Write to SAI_Block_x FRCR */
mbed_official	87:085cde657901	337	hsai->Instance->FRCR = tmpreg;
mbed_official	87:085cde657901	338
mbed_official	87:085cde657901	339	/* SAI Block_x SLOT Configuration ------------------------------------------*/
mbed_official	87:085cde657901	340	/* Get the SAI Block_x SLOTR value */
mbed_official	87:085cde657901	341	tmpreg = hsai->Instance->SLOTR;
mbed_official	87:085cde657901	342	/* Clear FBOFF, SLOTSZ, NBSLOT, SLOTEN bits */
mbed_official	87:085cde657901	343	tmpreg &= SLOTR_CLEAR_MASK;
mbed_official	87:085cde657901	344	/* Configure SAI_Block_x Slot: First bit offset, Slot size, Number of Slot in
mbed_official	87:085cde657901	345	audio frame and slots activated in audio frame */
mbed_official	87:085cde657901	346	/* Set FBOFF bits according to SAI_FirstBitOffset value */
mbed_official	87:085cde657901	347	/* Set SLOTSZ bits according to SAI_SlotSize value */
mbed_official	87:085cde657901	348	/* Set NBSLOT bits according to SAI_SlotNumber value */
mbed_official	87:085cde657901	349	/* Set SLOTEN bits according to SAI_SlotActive value */
mbed_official	87:085cde657901	350	tmpreg \|= (uint32_t)(hsai->SlotInit.FirstBitOffset \|
mbed_official	87:085cde657901	351	hsai->SlotInit.SlotSize \|
mbed_official	87:085cde657901	352	hsai->SlotInit.SlotActive \|
mbed_official	87:085cde657901	353	(uint32_t)((hsai->SlotInit.SlotNumber - 1) << 8));
mbed_official	87:085cde657901	354
mbed_official	87:085cde657901	355	/* Write to SAI_Block_x SLOTR */
mbed_official	87:085cde657901	356	hsai->Instance->SLOTR = tmpreg;
mbed_official	87:085cde657901	357
mbed_official	87:085cde657901	358	/* SAI Block_x Clock Configuration -----------------------------------------*/
mbed_official	87:085cde657901	359	/* Check the Clock parameters */
mbed_official	87:085cde657901	360	assert_param(IS_SAI_CLK_SOURCE(hsai->Init.ClockSource));
mbed_official	87:085cde657901	361
mbed_official	87:085cde657901	362	/* SAI Block clock source selection */
mbed_official	87:085cde657901	363	if(hsai->Instance == SAI1_Block_A)
mbed_official	87:085cde657901	364	{
mbed_official	87:085cde657901	365	__HAL_RCC_SAI_BLOCKACLKSOURCE_CONFIG(hsai->Init.ClockSource);
mbed_official	87:085cde657901	366	}
mbed_official	87:085cde657901	367	else
mbed_official	87:085cde657901	368	{
mbed_official	87:085cde657901	369	__HAL_RCC_SAI_BLOCKBCLKSOURCE_CONFIG((uint32_t)(hsai->Init.ClockSource << 2));
mbed_official	87:085cde657901	370	}
mbed_official	87:085cde657901	371
mbed_official	87:085cde657901	372	/* VCO Input Clock value calculation */
mbed_official	87:085cde657901	373	if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI)
mbed_official	87:085cde657901	374	{
mbed_official	87:085cde657901	375	/* In Case the PLL Source is HSI (Internal Clock) */
mbed_official	87:085cde657901	376	vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
mbed_official	87:085cde657901	377	}
mbed_official	87:085cde657901	378	else
mbed_official	87:085cde657901	379	{
mbed_official	87:085cde657901	380	/* In Case the PLL Source is HSE (External Clock) */
mbed_official	87:085cde657901	381	vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)));
mbed_official	87:085cde657901	382	}
mbed_official	87:085cde657901	383
mbed_official	87:085cde657901	384	/* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */
mbed_official	87:085cde657901	385	if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLSAI)
mbed_official	87:085cde657901	386	{
mbed_official	87:085cde657901	387	/* Configure the PLLI2S division factor */
mbed_official	87:085cde657901	388	/* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
mbed_official	87:085cde657901	389	/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
mbed_official	87:085cde657901	390	/* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */
mbed_official	87:085cde657901	391	tmpreg = (RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> 24;
mbed_official	87:085cde657901	392	saiclocksource = (vcoinput * ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> 6))/(tmpreg);
mbed_official	87:085cde657901	393
mbed_official	87:085cde657901	394	/* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */
mbed_official	87:085cde657901	395	tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> 8) + 1);
mbed_official	87:085cde657901	396	saiclocksource = saiclocksource/(tmpreg);
mbed_official	87:085cde657901	397
mbed_official	87:085cde657901	398	}
mbed_official	87:085cde657901	399	else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S)
mbed_official	87:085cde657901	400	{
mbed_official	87:085cde657901	401	/* Configure the PLLI2S division factor */
mbed_official	87:085cde657901	402	/* PLLI2S_VCO Input = PLL_SOURCE/PLLM */
mbed_official	87:085cde657901	403	/* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
mbed_official	87:085cde657901	404	/* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */
mbed_official	87:085cde657901	405	tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> 24;
mbed_official	87:085cde657901	406	saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6))/(tmpreg);
mbed_official	87:085cde657901	407
mbed_official	87:085cde657901	408	/* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */
mbed_official	87:085cde657901	409	tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) + 1);
mbed_official	87:085cde657901	410	saiclocksource = saiclocksource/(tmpreg);
mbed_official	87:085cde657901	411	}
mbed_official	87:085cde657901	412	else /* sConfig->ClockSource == SAI_CLKSource_Ext */
mbed_official	87:085cde657901	413	{
mbed_official	87:085cde657901	414	/* Enable the External Clock selection */
mbed_official	87:085cde657901	415	__HAL_RCC_I2SCLK(RCC_I2SCLKSOURCE_EXT);
mbed_official	87:085cde657901	416
mbed_official	87:085cde657901	417	saiclocksource = EXTERNAL_CLOCK_VALUE;
mbed_official	87:085cde657901	418	}
mbed_official	87:085cde657901	419
mbed_official	87:085cde657901	420	/* Configure Master Clock using the following formula :
mbed_official	87:085cde657901	421	MCLK_x = SAI_CK_x / (MCKDIV[3:0] * 2) with MCLK_x = 256 * FS
mbed_official	87:085cde657901	422	FS = SAI_CK_x / (MCKDIV[3:0] * 2) * 256
mbed_official	87:085cde657901	423	MCKDIV[3:0] = SAI_CK_x / FS * 512 */
mbed_official	87:085cde657901	424	if(hsai->Init.NoDivider == SAI_MASTERDIVIDER_ENABLED)
mbed_official	87:085cde657901	425	{
mbed_official	87:085cde657901	426	/* (saiclocksource x 10) to keep Significant digits */
mbed_official	87:085cde657901	427	tmpclock = (((saiclocksource * 10) / ((hsai->Init.AudioFrequency) * 512)));
mbed_official	87:085cde657901	428
mbed_official	87:085cde657901	429	/* Get the result of modulo division */
mbed_official	87:085cde657901	430	tmp2clock = (tmpclock % 10);
mbed_official	87:085cde657901	431
mbed_official	87:085cde657901	432	/* Round result to the nearest integer*/
mbed_official	87:085cde657901	433	if (tmp2clock > 8)
mbed_official	87:085cde657901	434	{
mbed_official	87:085cde657901	435	tmpclock = ((tmpclock / 10) + 1);
mbed_official	87:085cde657901	436	}
mbed_official	87:085cde657901	437	else
mbed_official	87:085cde657901	438	{
mbed_official	87:085cde657901	439	tmpclock = (tmpclock / 10);
mbed_official	87:085cde657901	440	}
mbed_official	87:085cde657901	441	/Set MCKDIV value in CR1 register/
mbed_official	87:085cde657901	442	hsai->Instance->CR1 \|= (tmpclock << 20);
mbed_official	87:085cde657901	443
mbed_official	106:ced8cbb51063	444	}
mbed_official	87:085cde657901	445
mbed_official	87:085cde657901	446	/* Initialise the error code */
mbed_official	87:085cde657901	447	hsai->ErrorCode = HAL_SAI_ERROR_NONE;
mbed_official	106:ced8cbb51063	448
mbed_official	87:085cde657901	449	/* Initialize the SAI state */
mbed_official	87:085cde657901	450	hsai->State= HAL_SAI_STATE_READY;
mbed_official	106:ced8cbb51063	451
mbed_official	87:085cde657901	452	return HAL_OK;
mbed_official	87:085cde657901	453	}
mbed_official	87:085cde657901	454
mbed_official	87:085cde657901	455	/**
mbed_official	87:085cde657901	456	* @brief DeInitializes the SAI peripheral.
mbed_official	226:b062af740e40	457	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	458	* the configuration information for SAI module.
mbed_official	87:085cde657901	459	* @retval HAL status
mbed_official	87:085cde657901	460	*/
mbed_official	87:085cde657901	461	HAL_StatusTypeDef HAL_SAI_DeInit(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	462	{
mbed_official	87:085cde657901	463	/* Check the SAI handle allocation */
mbed_official	87:085cde657901	464	if(hsai == NULL)
mbed_official	87:085cde657901	465	{
mbed_official	87:085cde657901	466	return HAL_ERROR;
mbed_official	87:085cde657901	467	}
mbed_official	106:ced8cbb51063	468
mbed_official	87:085cde657901	469	hsai->State = HAL_SAI_STATE_BUSY;
mbed_official	106:ced8cbb51063	470
mbed_official	87:085cde657901	471	/* DeInit the low level hardware: GPIO, CLOCK, NVIC and DMA */
mbed_official	87:085cde657901	472	HAL_SAI_MspDeInit(hsai);
mbed_official	87:085cde657901	473
mbed_official	87:085cde657901	474	/* Initialize the error code */
mbed_official	87:085cde657901	475	hsai->ErrorCode = HAL_SAI_ERROR_NONE;
mbed_official	87:085cde657901	476
mbed_official	87:085cde657901	477	/* Initialize the SAI state */
mbed_official	87:085cde657901	478	hsai->State = HAL_SAI_STATE_RESET;
mbed_official	106:ced8cbb51063	479
mbed_official	106:ced8cbb51063	480	/* Release Lock */
mbed_official	106:ced8cbb51063	481	__HAL_UNLOCK(hsai);
mbed_official	106:ced8cbb51063	482
mbed_official	87:085cde657901	483	return HAL_OK;
mbed_official	87:085cde657901	484	}
mbed_official	87:085cde657901	485
mbed_official	87:085cde657901	486	/**
mbed_official	87:085cde657901	487	* @brief SAI MSP Init.
mbed_official	226:b062af740e40	488	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	489	* the configuration information for SAI module.
mbed_official	87:085cde657901	490	* @retval None
mbed_official	87:085cde657901	491	*/
mbed_official	87:085cde657901	492	__weak void HAL_SAI_MspInit(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	493	{
mbed_official	87:085cde657901	494	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	87:085cde657901	495	the HAL_SAI_MspInit could be implemented in the user file
mbed_official	87:085cde657901	496	*/
mbed_official	87:085cde657901	497	}
mbed_official	87:085cde657901	498
mbed_official	87:085cde657901	499	/**
mbed_official	87:085cde657901	500	* @brief SAI MSP DeInit.
mbed_official	226:b062af740e40	501	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	502	* the configuration information for SAI module.
mbed_official	87:085cde657901	503	* @retval None
mbed_official	87:085cde657901	504	*/
mbed_official	87:085cde657901	505	__weak void HAL_SAI_MspDeInit(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	506	{
mbed_official	87:085cde657901	507	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	87:085cde657901	508	the HAL_SAI_MspDeInit could be implemented in the user file
mbed_official	87:085cde657901	509	*/
mbed_official	87:085cde657901	510	}
mbed_official	87:085cde657901	511
mbed_official	87:085cde657901	512	/**
mbed_official	87:085cde657901	513	* @}
mbed_official	87:085cde657901	514	*/
mbed_official	87:085cde657901	515
mbed_official	87:085cde657901	516	/** @defgroup SAI_Group2 IO operation functions
mbed_official	87:085cde657901	517	* @brief Data transfers functions
mbed_official	87:085cde657901	518	*
mbed_official	87:085cde657901	519	@verbatim
mbed_official	87:085cde657901	520	===============================================================================
mbed_official	87:085cde657901	521	##### IO operation functions #####
mbed_official	87:085cde657901	522	===============================================================================
mbed_official	87:085cde657901	523	[..]
mbed_official	87:085cde657901	524	This subsection provides a set of functions allowing to manage the SAI data
mbed_official	87:085cde657901	525	transfers.
mbed_official	87:085cde657901	526
mbed_official	226:b062af740e40	527	(+) There are two modes of transfer:
mbed_official	87:085cde657901	528	(++) Blocking mode : The communication is performed in the polling mode.
mbed_official	87:085cde657901	529	The status of all data processing is returned by the same function
mbed_official	87:085cde657901	530	after finishing transfer.
mbed_official	87:085cde657901	531	(++) No-Blocking mode : The communication is performed using Interrupts
mbed_official	87:085cde657901	532	or DMA. These functions return the status of the transfer startup.
mbed_official	87:085cde657901	533	The end of the data processing will be indicated through the
mbed_official	87:085cde657901	534	dedicated SAI IRQ when using Interrupt mode or the DMA IRQ when
mbed_official	87:085cde657901	535	using DMA mode.
mbed_official	87:085cde657901	536
mbed_official	87:085cde657901	537	(+) Blocking mode functions are :
mbed_official	87:085cde657901	538	(++) HAL_SAI_Transmit()
mbed_official	87:085cde657901	539	(++) HAL_SAI_Receive()
mbed_official	87:085cde657901	540	(++) HAL_SAI_TransmitReceive()
mbed_official	87:085cde657901	541
mbed_official	226:b062af740e40	542	(+) Non Blocking mode functions with Interrupt are :
mbed_official	87:085cde657901	543	(++) HAL_SAI_Transmit_IT()
mbed_official	87:085cde657901	544	(++) HAL_SAI_Receive_IT()
mbed_official	87:085cde657901	545	(++) HAL_SAI_TransmitReceive_IT()
mbed_official	87:085cde657901	546
mbed_official	226:b062af740e40	547	(+) Non Blocking mode functions with DMA are :
mbed_official	87:085cde657901	548	(++) HAL_SAI_Transmit_DMA()
mbed_official	87:085cde657901	549	(++) HAL_SAI_Receive_DMA()
mbed_official	87:085cde657901	550	(++) HAL_SAI_TransmitReceive_DMA()
mbed_official	87:085cde657901	551
mbed_official	226:b062af740e40	552	(+) A set of Transfer Complete Callbacks are provided in non Blocking mode:
mbed_official	87:085cde657901	553	(++) HAL_SAI_TxCpltCallback()
mbed_official	87:085cde657901	554	(++) HAL_SAI_RxCpltCallback()
mbed_official	87:085cde657901	555	(++) HAL_SAI_ErrorCallback()
mbed_official	87:085cde657901	556
mbed_official	87:085cde657901	557	@endverbatim
mbed_official	87:085cde657901	558	* @{
mbed_official	87:085cde657901	559	*/
mbed_official	87:085cde657901	560
mbed_official	87:085cde657901	561	/**
mbed_official	87:085cde657901	562	* @brief Transmits an amount of data in blocking mode.
mbed_official	226:b062af740e40	563	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	564	* the configuration information for SAI module.
mbed_official	87:085cde657901	565	* @param pData: Pointer to data buffer
mbed_official	87:085cde657901	566	* @param Size: Amount of data to be sent
mbed_official	87:085cde657901	567	* @param Timeout: Timeout duration
mbed_official	87:085cde657901	568	* @retval HAL status
mbed_official	87:085cde657901	569	*/
mbed_official	87:085cde657901	570	HAL_StatusTypeDef HAL_SAI_Transmit(SAI_HandleTypeDef hsai, uint16_t pData, uint16_t Size, uint32_t Timeout)
mbed_official	87:085cde657901	571	{
mbed_official	87:085cde657901	572	uint32_t timeout = 0x00;
mbed_official	87:085cde657901	573
mbed_official	87:085cde657901	574	if((pData == NULL ) \|\| (Size == 0))
mbed_official	87:085cde657901	575	{
mbed_official	87:085cde657901	576	return HAL_ERROR;
mbed_official	87:085cde657901	577	}
mbed_official	87:085cde657901	578
mbed_official	87:085cde657901	579	if(hsai->State == HAL_SAI_STATE_READY)
mbed_official	87:085cde657901	580	{
mbed_official	87:085cde657901	581	/* Process Locked */
mbed_official	87:085cde657901	582	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	583
mbed_official	87:085cde657901	584	hsai->State = HAL_SAI_STATE_BUSY_TX;
mbed_official	87:085cde657901	585
mbed_official	87:085cde657901	586	/* Check if the SAI is already enabled */
mbed_official	87:085cde657901	587	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official	87:085cde657901	588	{
mbed_official	87:085cde657901	589	/* Enable SAI peripheral */
mbed_official	87:085cde657901	590	__HAL_SAI_ENABLE(hsai);
mbed_official	87:085cde657901	591	}
mbed_official	87:085cde657901	592
mbed_official	87:085cde657901	593	while(Size > 0)
mbed_official	87:085cde657901	594	{
mbed_official	87:085cde657901	595	/* Wait the FIFO to be empty */
mbed_official	87:085cde657901	596	/* Get timeout */
mbed_official	87:085cde657901	597	timeout = HAL_GetTick() + Timeout;
mbed_official	87:085cde657901	598	while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ) == RESET)
mbed_official	87:085cde657901	599	{
mbed_official	87:085cde657901	600	/* Check for the Timeout */
mbed_official	87:085cde657901	601	if(Timeout != HAL_MAX_DELAY)
mbed_official	87:085cde657901	602	{
mbed_official	87:085cde657901	603	if(HAL_GetTick() >= timeout)
mbed_official	87:085cde657901	604	{
mbed_official	87:085cde657901	605
mbed_official	87:085cde657901	606	/* Update error code */
mbed_official	87:085cde657901	607	hsai->ErrorCode \|= HAL_SAI_ERROR_TIMEOUT;
mbed_official	87:085cde657901	608
mbed_official	87:085cde657901	609	/* Process Unlocked */
mbed_official	87:085cde657901	610	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	611
mbed_official	87:085cde657901	612	/* Change the SAI state */
mbed_official	87:085cde657901	613	hsai->State = HAL_SAI_STATE_TIMEOUT;
mbed_official	87:085cde657901	614
mbed_official	87:085cde657901	615	return HAL_TIMEOUT;
mbed_official	87:085cde657901	616	}
mbed_official	87:085cde657901	617	}
mbed_official	87:085cde657901	618	}
mbed_official	87:085cde657901	619	hsai->Instance->DR = (*pData++);
mbed_official	87:085cde657901	620	Size--;
mbed_official	87:085cde657901	621	}
mbed_official	87:085cde657901	622
mbed_official	87:085cde657901	623	hsai->State = HAL_SAI_STATE_READY;
mbed_official	87:085cde657901	624
mbed_official	87:085cde657901	625	/* Process Unlocked */
mbed_official	87:085cde657901	626	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	627
mbed_official	87:085cde657901	628	return HAL_OK;
mbed_official	87:085cde657901	629	}
mbed_official	87:085cde657901	630	else
mbed_official	87:085cde657901	631	{
mbed_official	87:085cde657901	632	return HAL_BUSY;
mbed_official	87:085cde657901	633	}
mbed_official	87:085cde657901	634	}
mbed_official	87:085cde657901	635
mbed_official	87:085cde657901	636	/**
mbed_official	87:085cde657901	637	* @brief Receives an amount of data in blocking mode.
mbed_official	226:b062af740e40	638	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	639	* the configuration information for SAI module.
mbed_official	87:085cde657901	640	* @param pData: Pointer to data buffer
mbed_official	87:085cde657901	641	* @param Size: Amount of data to be received
mbed_official	87:085cde657901	642	* @param Timeout: Timeout duration
mbed_official	87:085cde657901	643	* @retval HAL status
mbed_official	87:085cde657901	644	*/
mbed_official	87:085cde657901	645	HAL_StatusTypeDef HAL_SAI_Receive(SAI_HandleTypeDef hsai, uint16_t pData, uint16_t Size, uint32_t Timeout)
mbed_official	87:085cde657901	646	{
mbed_official	87:085cde657901	647	uint32_t timeout = 0x00;
mbed_official	87:085cde657901	648
mbed_official	87:085cde657901	649	if((pData == NULL ) \|\| (Size == 0))
mbed_official	87:085cde657901	650	{
mbed_official	87:085cde657901	651	return HAL_ERROR;
mbed_official	87:085cde657901	652	}
mbed_official	87:085cde657901	653
mbed_official	87:085cde657901	654	if(hsai->State == HAL_SAI_STATE_READY)
mbed_official	87:085cde657901	655	{
mbed_official	87:085cde657901	656	/* Process Locked */
mbed_official	87:085cde657901	657	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	658
mbed_official	87:085cde657901	659	hsai->State = HAL_SAI_STATE_BUSY_RX;
mbed_official	87:085cde657901	660
mbed_official	87:085cde657901	661	/* Check if the SAI is already enabled */
mbed_official	87:085cde657901	662	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official	87:085cde657901	663	{
mbed_official	87:085cde657901	664	/* Enable SAI peripheral */
mbed_official	87:085cde657901	665	__HAL_SAI_ENABLE(hsai);
mbed_official	87:085cde657901	666	}
mbed_official	87:085cde657901	667
mbed_official	87:085cde657901	668	/* Receive data */
mbed_official	87:085cde657901	669	while(Size > 0)
mbed_official	87:085cde657901	670	{
mbed_official	87:085cde657901	671	/* Wait until RXNE flag is set */
mbed_official	87:085cde657901	672	/* Get timeout */
mbed_official	87:085cde657901	673	timeout = HAL_GetTick() + Timeout;
mbed_official	87:085cde657901	674
mbed_official	87:085cde657901	675	while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ) == RESET)
mbed_official	87:085cde657901	676	{
mbed_official	87:085cde657901	677	/* Check for the Timeout */
mbed_official	87:085cde657901	678	if(Timeout != HAL_MAX_DELAY)
mbed_official	87:085cde657901	679	{
mbed_official	87:085cde657901	680	if(HAL_GetTick() >= timeout)
mbed_official	87:085cde657901	681	{
mbed_official	87:085cde657901	682
mbed_official	87:085cde657901	683	/* Update error code */
mbed_official	87:085cde657901	684	hsai->ErrorCode \|= HAL_SAI_ERROR_TIMEOUT;
mbed_official	87:085cde657901	685
mbed_official	87:085cde657901	686	/* Process Unlocked */
mbed_official	87:085cde657901	687	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	688
mbed_official	87:085cde657901	689	/* Change the SAI state */
mbed_official	87:085cde657901	690	hsai->State = HAL_SAI_STATE_TIMEOUT;
mbed_official	87:085cde657901	691
mbed_official	87:085cde657901	692	return HAL_TIMEOUT;
mbed_official	87:085cde657901	693	}
mbed_official	87:085cde657901	694	}
mbed_official	87:085cde657901	695	}
mbed_official	87:085cde657901	696
mbed_official	87:085cde657901	697	(*pData++) = hsai->Instance->DR;
mbed_official	87:085cde657901	698	Size--;
mbed_official	87:085cde657901	699	}
mbed_official	87:085cde657901	700
mbed_official	87:085cde657901	701	hsai->State = HAL_SAI_STATE_READY;
mbed_official	87:085cde657901	702
mbed_official	87:085cde657901	703	/* Process Unlocked */
mbed_official	87:085cde657901	704	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	705
mbed_official	87:085cde657901	706	return HAL_OK;
mbed_official	87:085cde657901	707	}
mbed_official	87:085cde657901	708	else
mbed_official	87:085cde657901	709	{
mbed_official	87:085cde657901	710	return HAL_BUSY;
mbed_official	87:085cde657901	711	}
mbed_official	87:085cde657901	712	}
mbed_official	87:085cde657901	713
mbed_official	87:085cde657901	714	/**
mbed_official	87:085cde657901	715	* @brief Transmits an amount of data in no-blocking mode with Interrupt.
mbed_official	226:b062af740e40	716	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	717	* the configuration information for SAI module.
mbed_official	87:085cde657901	718	* @param pData: Pointer to data buffer
mbed_official	87:085cde657901	719	* @param Size: Amount of data to be sent
mbed_official	87:085cde657901	720	* @retval HAL status
mbed_official	87:085cde657901	721	*/
mbed_official	87:085cde657901	722	HAL_StatusTypeDef HAL_SAI_Transmit_IT(SAI_HandleTypeDef hsai, uint16_t pData, uint16_t Size)
mbed_official	87:085cde657901	723	{
mbed_official	87:085cde657901	724	if(hsai->State == HAL_SAI_STATE_READY)
mbed_official	87:085cde657901	725	{
mbed_official	87:085cde657901	726	if((pData == NULL) \|\| (Size == 0))
mbed_official	87:085cde657901	727	{
mbed_official	87:085cde657901	728	return HAL_ERROR;
mbed_official	87:085cde657901	729	}
mbed_official	87:085cde657901	730
mbed_official	87:085cde657901	731	hsai->pTxBuffPtr = pData;
mbed_official	87:085cde657901	732	hsai->TxXferSize = Size;
mbed_official	87:085cde657901	733	hsai->TxXferCount = Size;
mbed_official	87:085cde657901	734
mbed_official	87:085cde657901	735	/* Process Locked */
mbed_official	87:085cde657901	736	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	737
mbed_official	87:085cde657901	738	hsai->State = HAL_SAI_STATE_BUSY_TX;
mbed_official	87:085cde657901	739
mbed_official	87:085cde657901	740	/* Transmit data */
mbed_official	87:085cde657901	741	hsai->Instance->DR = (*hsai->pTxBuffPtr++);
mbed_official	87:085cde657901	742	hsai->TxXferCount--;
mbed_official	87:085cde657901	743
mbed_official	87:085cde657901	744	/* Process Unlocked */
mbed_official	87:085cde657901	745	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	746
mbed_official	87:085cde657901	747	/* Enable FRQ and OVRUDR interrupts */
mbed_official	87:085cde657901	748	__HAL_SAI_ENABLE_IT(hsai, (SAI_IT_FREQ \| SAI_IT_OVRUDR));
mbed_official	87:085cde657901	749
mbed_official	87:085cde657901	750	/* Check if the SAI is already enabled */
mbed_official	87:085cde657901	751	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official	87:085cde657901	752	{
mbed_official	87:085cde657901	753	/* Enable SAI peripheral */
mbed_official	87:085cde657901	754	__HAL_SAI_ENABLE(hsai);
mbed_official	87:085cde657901	755	}
mbed_official	87:085cde657901	756
mbed_official	87:085cde657901	757
mbed_official	87:085cde657901	758	return HAL_OK;
mbed_official	87:085cde657901	759	}
mbed_official	87:085cde657901	760	else if(hsai->State == HAL_SAI_STATE_BUSY_TX)
mbed_official	87:085cde657901	761	{
mbed_official	87:085cde657901	762	/* Process Locked */
mbed_official	87:085cde657901	763	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	764
mbed_official	87:085cde657901	765	/* Transmit data */
mbed_official	87:085cde657901	766	hsai->Instance->DR = (*hsai->pTxBuffPtr++);
mbed_official	87:085cde657901	767
mbed_official	87:085cde657901	768	hsai->TxXferCount--;
mbed_official	87:085cde657901	769
mbed_official	87:085cde657901	770	if(hsai->TxXferCount == 0)
mbed_official	87:085cde657901	771	{
mbed_official	87:085cde657901	772	/* Disable FREQ and OVRUDR interrupts */
mbed_official	87:085cde657901	773	__HAL_SAI_DISABLE_IT(hsai, (SAI_IT_FREQ \| SAI_IT_OVRUDR));
mbed_official	87:085cde657901	774
mbed_official	87:085cde657901	775	hsai->State = HAL_SAI_STATE_READY;
mbed_official	87:085cde657901	776
mbed_official	87:085cde657901	777	HAL_SAI_TxCpltCallback(hsai);
mbed_official	87:085cde657901	778	}
mbed_official	87:085cde657901	779
mbed_official	87:085cde657901	780	/* Process Unlocked */
mbed_official	87:085cde657901	781	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	782
mbed_official	87:085cde657901	783	return HAL_OK;
mbed_official	87:085cde657901	784	}
mbed_official	87:085cde657901	785
mbed_official	87:085cde657901	786	else
mbed_official	87:085cde657901	787	{
mbed_official	87:085cde657901	788	return HAL_BUSY;
mbed_official	87:085cde657901	789	}
mbed_official	87:085cde657901	790	}
mbed_official	87:085cde657901	791
mbed_official	87:085cde657901	792	/**
mbed_official	87:085cde657901	793	* @brief Receives an amount of data in no-blocking mode with Interrupt.
mbed_official	226:b062af740e40	794	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	795	* the configuration information for SAI module.
mbed_official	87:085cde657901	796	* @param pData: Pointer to data buffer
mbed_official	87:085cde657901	797	* @param Size: Amount of data to be received
mbed_official	87:085cde657901	798	* @retval HAL status
mbed_official	87:085cde657901	799	*/
mbed_official	87:085cde657901	800	HAL_StatusTypeDef HAL_SAI_Receive_IT(SAI_HandleTypeDef hsai, uint16_t pData, uint16_t Size)
mbed_official	87:085cde657901	801	{
mbed_official	87:085cde657901	802	if(hsai->State == HAL_SAI_STATE_READY)
mbed_official	87:085cde657901	803	{
mbed_official	87:085cde657901	804	if((pData == NULL) \|\| (Size == 0))
mbed_official	87:085cde657901	805	{
mbed_official	87:085cde657901	806	return HAL_ERROR;
mbed_official	87:085cde657901	807	}
mbed_official	87:085cde657901	808
mbed_official	87:085cde657901	809	hsai->pRxBuffPtr = pData;
mbed_official	87:085cde657901	810	hsai->RxXferSize = Size;
mbed_official	87:085cde657901	811	hsai->RxXferCount = Size;
mbed_official	87:085cde657901	812
mbed_official	87:085cde657901	813	/* Process Locked */
mbed_official	87:085cde657901	814	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	815
mbed_official	87:085cde657901	816	hsai->State = HAL_SAI_STATE_BUSY_RX;
mbed_official	87:085cde657901	817
mbed_official	87:085cde657901	818	/* Enable TXE and OVRUDR interrupts */
mbed_official	87:085cde657901	819	__HAL_SAI_ENABLE_IT(hsai, (SAI_IT_FREQ \| SAI_IT_OVRUDR));
mbed_official	87:085cde657901	820
mbed_official	87:085cde657901	821	/* Check if the SAI is already enabled */
mbed_official	87:085cde657901	822	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official	87:085cde657901	823	{
mbed_official	87:085cde657901	824	/* Enable SAI peripheral */
mbed_official	87:085cde657901	825	__HAL_SAI_ENABLE(hsai);
mbed_official	87:085cde657901	826	}
mbed_official	87:085cde657901	827
mbed_official	87:085cde657901	828	/* Process Unlocked */
mbed_official	87:085cde657901	829	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	830
mbed_official	87:085cde657901	831	return HAL_OK;
mbed_official	87:085cde657901	832	}
mbed_official	87:085cde657901	833	else if(hsai->State == HAL_SAI_STATE_BUSY_RX)
mbed_official	87:085cde657901	834	{
mbed_official	87:085cde657901	835	/* Process Locked */
mbed_official	87:085cde657901	836	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	837
mbed_official	87:085cde657901	838	/* Receive data */
mbed_official	87:085cde657901	839	(*hsai->pRxBuffPtr++) = hsai->Instance->DR;
mbed_official	87:085cde657901	840
mbed_official	87:085cde657901	841	hsai->RxXferCount--;
mbed_official	87:085cde657901	842
mbed_official	87:085cde657901	843	if(hsai->RxXferCount == 0)
mbed_official	87:085cde657901	844	{
mbed_official	87:085cde657901	845	/* Disable TXE and OVRUDR interrupts */
mbed_official	87:085cde657901	846	__HAL_SAI_DISABLE_IT(hsai, (SAI_IT_FREQ \| SAI_IT_OVRUDR));
mbed_official	87:085cde657901	847
mbed_official	87:085cde657901	848	hsai->State = HAL_SAI_STATE_READY;
mbed_official	87:085cde657901	849	HAL_SAI_RxCpltCallback(hsai);
mbed_official	87:085cde657901	850	}
mbed_official	87:085cde657901	851
mbed_official	87:085cde657901	852	/* Process Unlocked */
mbed_official	87:085cde657901	853	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	854
mbed_official	87:085cde657901	855	return HAL_OK;
mbed_official	87:085cde657901	856	}
mbed_official	87:085cde657901	857
mbed_official	87:085cde657901	858	else
mbed_official	87:085cde657901	859	{
mbed_official	87:085cde657901	860	return HAL_BUSY;
mbed_official	87:085cde657901	861	}
mbed_official	87:085cde657901	862	}
mbed_official	87:085cde657901	863
mbed_official	87:085cde657901	864	/**
mbed_official	87:085cde657901	865	* @brief Pauses the audio stream playing from the Media.
mbed_official	226:b062af740e40	866	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	867	* the configuration information for SAI module.
mbed_official	226:b062af740e40	868	* @retval HAL status
mbed_official	87:085cde657901	869	*/
mbed_official	87:085cde657901	870	HAL_StatusTypeDef HAL_SAI_DMAPause(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	871	{
mbed_official	87:085cde657901	872	/* Process Locked */
mbed_official	87:085cde657901	873	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	874
mbed_official	87:085cde657901	875	/* Pause the audio file playing by disabling the SAI DMA requests */
mbed_official	87:085cde657901	876	hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
mbed_official	87:085cde657901	877
mbed_official	87:085cde657901	878
mbed_official	87:085cde657901	879	/* Process Unlocked */
mbed_official	87:085cde657901	880	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	881
mbed_official	87:085cde657901	882	return HAL_OK;
mbed_official	87:085cde657901	883	}
mbed_official	87:085cde657901	884
mbed_official	87:085cde657901	885	/**
mbed_official	87:085cde657901	886	* @brief Resumes the audio stream playing from the Media.
mbed_official	226:b062af740e40	887	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	888	* the configuration information for SAI module.
mbed_official	226:b062af740e40	889	* @retval HAL status
mbed_official	87:085cde657901	890	*/
mbed_official	87:085cde657901	891	HAL_StatusTypeDef HAL_SAI_DMAResume(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	892	{
mbed_official	87:085cde657901	893	/* Process Locked */
mbed_official	87:085cde657901	894	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	895
mbed_official	87:085cde657901	896	/* Enable the SAI DMA requests */
mbed_official	87:085cde657901	897	hsai->Instance->CR1 \|= SAI_xCR1_DMAEN;
mbed_official	87:085cde657901	898
mbed_official	87:085cde657901	899
mbed_official	87:085cde657901	900	/* If the SAI peripheral is still not enabled, enable it */
mbed_official	87:085cde657901	901	if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0)
mbed_official	87:085cde657901	902	{
mbed_official	87:085cde657901	903	/* Enable SAI peripheral */
mbed_official	87:085cde657901	904	__HAL_SAI_ENABLE(hsai);
mbed_official	87:085cde657901	905	}
mbed_official	87:085cde657901	906
mbed_official	87:085cde657901	907	/* Process Unlocked */
mbed_official	87:085cde657901	908	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	909
mbed_official	87:085cde657901	910	return HAL_OK;
mbed_official	87:085cde657901	911	}
mbed_official	87:085cde657901	912
mbed_official	87:085cde657901	913	/**
mbed_official	226:b062af740e40	914	* @brief Stops the audio stream playing from the Media.
mbed_official	226:b062af740e40	915	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	916	* the configuration information for SAI module.
mbed_official	226:b062af740e40	917	* @retval HAL status
mbed_official	87:085cde657901	918	*/
mbed_official	87:085cde657901	919	HAL_StatusTypeDef HAL_SAI_DMAStop(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	920	{
mbed_official	87:085cde657901	921	/* Process Locked */
mbed_official	87:085cde657901	922	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	923
mbed_official	87:085cde657901	924	/* Disable the SAI DMA request */
mbed_official	87:085cde657901	925	hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
mbed_official	87:085cde657901	926
mbed_official	106:ced8cbb51063	927	/* Abort the SAI DMA Tx Stream */
mbed_official	106:ced8cbb51063	928	if(hsai->hdmatx != NULL)
mbed_official	106:ced8cbb51063	929	{
mbed_official	106:ced8cbb51063	930	HAL_DMA_Abort(hsai->hdmatx);
mbed_official	106:ced8cbb51063	931	}
mbed_official	106:ced8cbb51063	932	/* Abort the SAI DMA Rx Stream */
mbed_official	106:ced8cbb51063	933	if(hsai->hdmarx != NULL)
mbed_official	106:ced8cbb51063	934	{
mbed_official	106:ced8cbb51063	935	HAL_DMA_Abort(hsai->hdmarx);
mbed_official	106:ced8cbb51063	936	}
mbed_official	106:ced8cbb51063	937
mbed_official	87:085cde657901	938	/* Disable SAI peripheral */
mbed_official	87:085cde657901	939	__HAL_SAI_DISABLE(hsai);
mbed_official	87:085cde657901	940
mbed_official	87:085cde657901	941	hsai->State = HAL_SAI_STATE_READY;
mbed_official	87:085cde657901	942
mbed_official	87:085cde657901	943	/* Process Unlocked */
mbed_official	87:085cde657901	944	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	945
mbed_official	87:085cde657901	946	return HAL_OK;
mbed_official	87:085cde657901	947	}
mbed_official	87:085cde657901	948	/**
mbed_official	87:085cde657901	949	* @brief Transmits an amount of data in no-blocking mode with DMA.
mbed_official	226:b062af740e40	950	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	951	* the configuration information for SAI module.
mbed_official	87:085cde657901	952	* @param pData: Pointer to data buffer
mbed_official	87:085cde657901	953	* @param Size: Amount of data to be sent
mbed_official	87:085cde657901	954	* @retval HAL status
mbed_official	87:085cde657901	955	*/
mbed_official	87:085cde657901	956	HAL_StatusTypeDef HAL_SAI_Transmit_DMA(SAI_HandleTypeDef hsai, uint16_t pData, uint16_t Size)
mbed_official	87:085cde657901	957	{
mbed_official	87:085cde657901	958	uint32_t *tmp;
mbed_official	87:085cde657901	959
mbed_official	87:085cde657901	960	if((pData == NULL) \|\| (Size == 0))
mbed_official	87:085cde657901	961	{
mbed_official	87:085cde657901	962	return HAL_ERROR;
mbed_official	87:085cde657901	963	}
mbed_official	87:085cde657901	964
mbed_official	87:085cde657901	965	if(hsai->State == HAL_SAI_STATE_READY)
mbed_official	87:085cde657901	966	{
mbed_official	87:085cde657901	967	hsai->pTxBuffPtr = pData;
mbed_official	87:085cde657901	968	hsai->TxXferSize = Size;
mbed_official	87:085cde657901	969	hsai->TxXferCount = Size;
mbed_official	87:085cde657901	970
mbed_official	87:085cde657901	971	/* Process Locked */
mbed_official	87:085cde657901	972	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	973
mbed_official	87:085cde657901	974	hsai->State = HAL_SAI_STATE_BUSY_TX;
mbed_official	87:085cde657901	975
mbed_official	87:085cde657901	976	/* Set the SAI Tx DMA Half transfert complete callback */
mbed_official	87:085cde657901	977	hsai->hdmatx->XferHalfCpltCallback = SAI_DMATxHalfCplt;
mbed_official	87:085cde657901	978
mbed_official	87:085cde657901	979	/* Set the SAI TxDMA transfer complete callback */
mbed_official	87:085cde657901	980	hsai->hdmatx->XferCpltCallback = SAI_DMATxCplt;
mbed_official	87:085cde657901	981
mbed_official	87:085cde657901	982	/* Set the DMA error callback */
mbed_official	87:085cde657901	983	hsai->hdmatx->XferErrorCallback = SAI_DMAError;
mbed_official	87:085cde657901	984
mbed_official	87:085cde657901	985	/* Enable the Tx DMA Stream */
mbed_official	87:085cde657901	986	tmp = (uint32_t*)&pData;
mbed_official	87:085cde657901	987	HAL_DMA_Start_IT(hsai->hdmatx, (uint32_t)tmp, (uint32_t)&hsai->Instance->DR, hsai->TxXferSize);
mbed_official	87:085cde657901	988
mbed_official	87:085cde657901	989	/* Check if the SAI is already enabled */
mbed_official	87:085cde657901	990	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official	87:085cde657901	991	{
mbed_official	87:085cde657901	992	/* Enable SAI peripheral */
mbed_official	87:085cde657901	993	__HAL_SAI_ENABLE(hsai);
mbed_official	87:085cde657901	994	}
mbed_official	87:085cde657901	995
mbed_official	87:085cde657901	996	/* Enable SAI Tx DMA Request */
mbed_official	87:085cde657901	997	hsai->Instance->CR1 \|= SAI_xCR1_DMAEN;
mbed_official	87:085cde657901	998
mbed_official	87:085cde657901	999	/* Process Unlocked */
mbed_official	87:085cde657901	1000	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	1001
mbed_official	87:085cde657901	1002	return HAL_OK;
mbed_official	87:085cde657901	1003	}
mbed_official	87:085cde657901	1004	else
mbed_official	87:085cde657901	1005	{
mbed_official	87:085cde657901	1006	return HAL_BUSY;
mbed_official	87:085cde657901	1007	}
mbed_official	87:085cde657901	1008	}
mbed_official	87:085cde657901	1009
mbed_official	87:085cde657901	1010	/**
mbed_official	226:b062af740e40	1011	* @brief Receives an amount of data in no-blocking mode with DMA.
mbed_official	226:b062af740e40	1012	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1013	* the configuration information for SAI module.
mbed_official	87:085cde657901	1014	* @param pData: Pointer to data buffer
mbed_official	87:085cde657901	1015	* @param Size: Amount of data to be received
mbed_official	87:085cde657901	1016	* @retval HAL status
mbed_official	87:085cde657901	1017	*/
mbed_official	87:085cde657901	1018	HAL_StatusTypeDef HAL_SAI_Receive_DMA(SAI_HandleTypeDef hsai, uint16_t pData, uint16_t Size)
mbed_official	87:085cde657901	1019	{
mbed_official	87:085cde657901	1020	uint32_t *tmp;
mbed_official	87:085cde657901	1021
mbed_official	87:085cde657901	1022	if((pData == NULL) \|\| (Size == 0))
mbed_official	87:085cde657901	1023	{
mbed_official	87:085cde657901	1024	return HAL_ERROR;
mbed_official	87:085cde657901	1025	}
mbed_official	87:085cde657901	1026
mbed_official	87:085cde657901	1027	if(hsai->State == HAL_SAI_STATE_READY)
mbed_official	87:085cde657901	1028	{
mbed_official	87:085cde657901	1029	hsai->pRxBuffPtr = pData;
mbed_official	87:085cde657901	1030	hsai->RxXferSize = Size;
mbed_official	87:085cde657901	1031	hsai->RxXferCount = Size;
mbed_official	87:085cde657901	1032
mbed_official	87:085cde657901	1033	/* Process Locked */
mbed_official	87:085cde657901	1034	__HAL_LOCK(hsai);
mbed_official	87:085cde657901	1035
mbed_official	87:085cde657901	1036	hsai->State = HAL_SAI_STATE_BUSY_RX;
mbed_official	87:085cde657901	1037
mbed_official	87:085cde657901	1038	/* Set the SAI Rx DMA Half transfert complete callback */
mbed_official	87:085cde657901	1039	hsai->hdmarx->XferHalfCpltCallback = SAI_DMARxHalfCplt;
mbed_official	87:085cde657901	1040
mbed_official	87:085cde657901	1041	/* Set the SAI Rx DMA transfert complete callback */
mbed_official	87:085cde657901	1042	hsai->hdmarx->XferCpltCallback = SAI_DMARxCplt;
mbed_official	87:085cde657901	1043
mbed_official	87:085cde657901	1044	/* Set the DMA error callback */
mbed_official	87:085cde657901	1045	hsai->hdmarx->XferErrorCallback = SAI_DMAError;
mbed_official	87:085cde657901	1046
mbed_official	87:085cde657901	1047	/* Enable the Rx DMA Stream */
mbed_official	87:085cde657901	1048	tmp = (uint32_t*)&pData;
mbed_official	87:085cde657901	1049	HAL_DMA_Start_IT(hsai->hdmarx, (uint32_t)&hsai->Instance->DR, (uint32_t)tmp, hsai->RxXferSize);
mbed_official	87:085cde657901	1050
mbed_official	87:085cde657901	1051	/* Check if the SAI is already enabled */
mbed_official	87:085cde657901	1052	if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official	87:085cde657901	1053	{
mbed_official	87:085cde657901	1054	/* Enable SAI peripheral */
mbed_official	87:085cde657901	1055	__HAL_SAI_ENABLE(hsai);
mbed_official	87:085cde657901	1056	}
mbed_official	87:085cde657901	1057
mbed_official	87:085cde657901	1058	/* Enable SAI Rx DMA Request */
mbed_official	87:085cde657901	1059	hsai->Instance->CR1 \|= SAI_xCR1_DMAEN;
mbed_official	87:085cde657901	1060
mbed_official	87:085cde657901	1061	/* Process Unlocked */
mbed_official	87:085cde657901	1062	__HAL_UNLOCK(hsai);
mbed_official	87:085cde657901	1063
mbed_official	87:085cde657901	1064	return HAL_OK;
mbed_official	87:085cde657901	1065	}
mbed_official	87:085cde657901	1066	else
mbed_official	87:085cde657901	1067	{
mbed_official	87:085cde657901	1068	return HAL_BUSY;
mbed_official	87:085cde657901	1069	}
mbed_official	87:085cde657901	1070	}
mbed_official	87:085cde657901	1071
mbed_official	87:085cde657901	1072	/**
mbed_official	87:085cde657901	1073	* @brief This function handles SAI interrupt request.
mbed_official	226:b062af740e40	1074	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1075	* the configuration information for SAI module.
mbed_official	87:085cde657901	1076	* @retval HAL status
mbed_official	87:085cde657901	1077	*/
mbed_official	87:085cde657901	1078	void HAL_SAI_IRQHandler(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	1079	{
mbed_official	87:085cde657901	1080	uint32_t tmp1 = 0, tmp2 = 0;
mbed_official	87:085cde657901	1081
mbed_official	87:085cde657901	1082	if(hsai->State == HAL_SAI_STATE_BUSY_RX)
mbed_official	87:085cde657901	1083	{
mbed_official	87:085cde657901	1084	tmp1 = __HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ);
mbed_official	87:085cde657901	1085	tmp2 = __HAL_SAI_GET_IT_SOURCE(hsai, SAI_IT_FREQ);
mbed_official	87:085cde657901	1086	/* SAI in mode Receiver --------------------------------------------------*/
mbed_official	87:085cde657901	1087	if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official	87:085cde657901	1088	{
mbed_official	87:085cde657901	1089	HAL_SAI_Receive_IT(hsai, NULL, 0);
mbed_official	87:085cde657901	1090	}
mbed_official	87:085cde657901	1091
mbed_official	87:085cde657901	1092	tmp1 = __HAL_SAI_GET_FLAG(hsai, SAI_FLAG_OVRUDR);
mbed_official	87:085cde657901	1093	tmp2 = __HAL_SAI_GET_IT_SOURCE(hsai, SAI_IT_OVRUDR);
mbed_official	87:085cde657901	1094	/* SAI Overrun error interrupt occurred ----------------------------------*/
mbed_official	87:085cde657901	1095	if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official	87:085cde657901	1096	{
mbed_official	87:085cde657901	1097	/* Change the SAI error code */
mbed_official	87:085cde657901	1098	hsai->ErrorCode = HAL_SAI_ERROR_OVR;
mbed_official	87:085cde657901	1099
mbed_official	87:085cde657901	1100	/* Clear the SAI Overrun flag */
mbed_official	87:085cde657901	1101	__HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
mbed_official	87:085cde657901	1102	/* Set the SAI state ready to be able to start again the process */
mbed_official	87:085cde657901	1103	hsai->State = HAL_SAI_STATE_READY;
mbed_official	87:085cde657901	1104	HAL_SAI_ErrorCallback(hsai);
mbed_official	87:085cde657901	1105	}
mbed_official	87:085cde657901	1106	}
mbed_official	87:085cde657901	1107
mbed_official	87:085cde657901	1108	if(hsai->State == HAL_SAI_STATE_BUSY_TX)
mbed_official	87:085cde657901	1109	{
mbed_official	87:085cde657901	1110	tmp1 = __HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ);
mbed_official	87:085cde657901	1111	tmp2 = __HAL_SAI_GET_IT_SOURCE(hsai, SAI_IT_FREQ);
mbed_official	87:085cde657901	1112	/* SAI in mode Transmitter -----------------------------------------------*/
mbed_official	87:085cde657901	1113	if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official	87:085cde657901	1114	{
mbed_official	87:085cde657901	1115	HAL_SAI_Transmit_IT(hsai, NULL, 0);
mbed_official	87:085cde657901	1116	}
mbed_official	87:085cde657901	1117
mbed_official	87:085cde657901	1118	tmp1 = __HAL_SAI_GET_FLAG(hsai, SAI_FLAG_OVRUDR);
mbed_official	87:085cde657901	1119	tmp2 = __HAL_SAI_GET_IT_SOURCE(hsai, SAI_IT_OVRUDR);
mbed_official	87:085cde657901	1120	/* SAI Underrun error interrupt occurred ---------------------------------*/
mbed_official	87:085cde657901	1121	if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official	87:085cde657901	1122	{
mbed_official	87:085cde657901	1123	/* Change the SAI error code */
mbed_official	87:085cde657901	1124	hsai->ErrorCode = HAL_SAI_ERROR_UDR;
mbed_official	87:085cde657901	1125
mbed_official	87:085cde657901	1126	/* Clear the SAI Underrun flag */
mbed_official	87:085cde657901	1127	__HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
mbed_official	87:085cde657901	1128	/* Set the SAI state ready to be able to start again the process */
mbed_official	87:085cde657901	1129	hsai->State = HAL_SAI_STATE_READY;
mbed_official	87:085cde657901	1130	HAL_SAI_ErrorCallback(hsai);
mbed_official	87:085cde657901	1131	}
mbed_official	87:085cde657901	1132	}
mbed_official	87:085cde657901	1133	}
mbed_official	87:085cde657901	1134
mbed_official	87:085cde657901	1135	/**
mbed_official	87:085cde657901	1136	* @brief Tx Transfer completed callbacks.
mbed_official	226:b062af740e40	1137	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1138	* the configuration information for SAI module.
mbed_official	87:085cde657901	1139	* @retval None
mbed_official	87:085cde657901	1140	*/
mbed_official	87:085cde657901	1141	__weak void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	1142	{
mbed_official	87:085cde657901	1143	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	87:085cde657901	1144	the HAL_SAI_TxCpltCallback could be implemented in the user file
mbed_official	87:085cde657901	1145	*/
mbed_official	87:085cde657901	1146	}
mbed_official	87:085cde657901	1147
mbed_official	87:085cde657901	1148	/**
mbed_official	87:085cde657901	1149	* @brief Tx Transfer Half completed callbacks
mbed_official	226:b062af740e40	1150	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1151	* the configuration information for SAI module.
mbed_official	87:085cde657901	1152	* @retval None
mbed_official	87:085cde657901	1153	*/
mbed_official	87:085cde657901	1154	__weak void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	1155	{
mbed_official	87:085cde657901	1156	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	87:085cde657901	1157	the HAL_SAI_TxHalfCpltCallback could be implenetd in the user file
mbed_official	87:085cde657901	1158	*/
mbed_official	87:085cde657901	1159	}
mbed_official	87:085cde657901	1160
mbed_official	87:085cde657901	1161	/**
mbed_official	87:085cde657901	1162	* @brief Rx Transfer completed callbacks.
mbed_official	226:b062af740e40	1163	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1164	* the configuration information for SAI module.
mbed_official	87:085cde657901	1165	* @retval None
mbed_official	87:085cde657901	1166	*/
mbed_official	87:085cde657901	1167	__weak void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	1168	{
mbed_official	87:085cde657901	1169	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	87:085cde657901	1170	the HAL_SAI_RxCpltCallback could be implemented in the user file
mbed_official	87:085cde657901	1171	*/
mbed_official	87:085cde657901	1172	}
mbed_official	87:085cde657901	1173
mbed_official	87:085cde657901	1174	/**
mbed_official	87:085cde657901	1175	* @brief Rx Transfer half completed callbacks
mbed_official	226:b062af740e40	1176	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1177	* the configuration information for SAI module.
mbed_official	87:085cde657901	1178	* @retval None
mbed_official	87:085cde657901	1179	*/
mbed_official	87:085cde657901	1180	__weak void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	1181	{
mbed_official	87:085cde657901	1182	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	87:085cde657901	1183	the HAL_SAI_RxCpltCallback could be implenetd in the user file
mbed_official	87:085cde657901	1184	*/
mbed_official	87:085cde657901	1185	}
mbed_official	87:085cde657901	1186
mbed_official	87:085cde657901	1187	/**
mbed_official	87:085cde657901	1188	* @brief SAI error callbacks.
mbed_official	226:b062af740e40	1189	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1190	* the configuration information for SAI module.
mbed_official	87:085cde657901	1191	* @retval None
mbed_official	87:085cde657901	1192	*/
mbed_official	87:085cde657901	1193	__weak void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	1194	{
mbed_official	87:085cde657901	1195	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	87:085cde657901	1196	the HAL_SAI_ErrorCallback could be implemented in the user file
mbed_official	87:085cde657901	1197	*/
mbed_official	87:085cde657901	1198	}
mbed_official	87:085cde657901	1199
mbed_official	87:085cde657901	1200	/**
mbed_official	87:085cde657901	1201	* @}
mbed_official	87:085cde657901	1202	*/
mbed_official	87:085cde657901	1203
mbed_official	87:085cde657901	1204
mbed_official	87:085cde657901	1205	/** @defgroup SAI_Group3 Peripheral State functions
mbed_official	87:085cde657901	1206	* @brief Peripheral State functions
mbed_official	87:085cde657901	1207	*
mbed_official	87:085cde657901	1208	@verbatim
mbed_official	87:085cde657901	1209	===============================================================================
mbed_official	87:085cde657901	1210	##### Peripheral State and Errors functions #####
mbed_official	87:085cde657901	1211	===============================================================================
mbed_official	87:085cde657901	1212	[..]
mbed_official	226:b062af740e40	1213	This subsection permits to get in run-time the status of the peripheral
mbed_official	87:085cde657901	1214	and the data flow.
mbed_official	87:085cde657901	1215
mbed_official	87:085cde657901	1216	@endverbatim
mbed_official	87:085cde657901	1217	* @{
mbed_official	87:085cde657901	1218	*/
mbed_official	87:085cde657901	1219
mbed_official	87:085cde657901	1220	/**
mbed_official	87:085cde657901	1221	* @brief Returns the SAI state.
mbed_official	226:b062af740e40	1222	* @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1223	* the configuration information for SAI module.
mbed_official	87:085cde657901	1224	* @retval HAL state
mbed_official	87:085cde657901	1225	*/
mbed_official	87:085cde657901	1226	HAL_SAI_StateTypeDef HAL_SAI_GetState(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	1227	{
mbed_official	87:085cde657901	1228	return hsai->State;
mbed_official	87:085cde657901	1229	}
mbed_official	87:085cde657901	1230
mbed_official	87:085cde657901	1231	/**
mbed_official	87:085cde657901	1232	* @brief Return the SAI error code
mbed_official	87:085cde657901	1233	* @param hsai : pointer to a SAI_HandleTypeDef structure that contains
mbed_official	87:085cde657901	1234	* the configuration information for the specified SAI Block.
mbed_official	87:085cde657901	1235	* @retval SAI Error Code
mbed_official	87:085cde657901	1236	*/
mbed_official	87:085cde657901	1237	uint32_t HAL_SAI_GetError(SAI_HandleTypeDef *hsai)
mbed_official	87:085cde657901	1238	{
mbed_official	87:085cde657901	1239	return hsai->ErrorCode;
mbed_official	87:085cde657901	1240	}
mbed_official	87:085cde657901	1241	/**
mbed_official	87:085cde657901	1242	* @}
mbed_official	87:085cde657901	1243	*/
mbed_official	87:085cde657901	1244
mbed_official	87:085cde657901	1245	/**
mbed_official	87:085cde657901	1246	* @brief DMA SAI transmit process complete callback.
mbed_official	226:b062af740e40	1247	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1248	* the configuration information for the specified DMA module.
mbed_official	87:085cde657901	1249	* @retval None
mbed_official	87:085cde657901	1250	*/
mbed_official	87:085cde657901	1251	static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma)
mbed_official	87:085cde657901	1252	{
mbed_official	106:ced8cbb51063	1253	uint32_t timeout = 0x00;
mbed_official	87:085cde657901	1254
mbed_official	106:ced8cbb51063	1255	SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef)((DMA_HandleTypeDef )hdma)->Parent;
mbed_official	106:ced8cbb51063	1256
mbed_official	106:ced8cbb51063	1257	if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
mbed_official	106:ced8cbb51063	1258	{
mbed_official	106:ced8cbb51063	1259	hsai->TxXferCount = 0;
mbed_official	106:ced8cbb51063	1260	hsai->RxXferCount = 0;
mbed_official	106:ced8cbb51063	1261
mbed_official	106:ced8cbb51063	1262	/* Disable SAI Tx DMA Request */
mbed_official	106:ced8cbb51063	1263	hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
mbed_official	106:ced8cbb51063	1264
mbed_official	106:ced8cbb51063	1265	/* Set timeout: 10 is the max delay to send the remaining data in the SAI FIFO */
mbed_official	106:ced8cbb51063	1266	timeout = HAL_GetTick() + 10;
mbed_official	106:ced8cbb51063	1267
mbed_official	106:ced8cbb51063	1268	/* Wait until FIFO is empty */
mbed_official	106:ced8cbb51063	1269	while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FLVL) != RESET)
mbed_official	106:ced8cbb51063	1270	{
mbed_official	106:ced8cbb51063	1271	/* Check for the Timeout */
mbed_official	106:ced8cbb51063	1272	if(HAL_GetTick() >= timeout)
mbed_official	106:ced8cbb51063	1273	{
mbed_official	106:ced8cbb51063	1274	/* Update error code */
mbed_official	106:ced8cbb51063	1275	hsai->ErrorCode \|= HAL_SAI_ERROR_TIMEOUT;
mbed_official	106:ced8cbb51063	1276
mbed_official	106:ced8cbb51063	1277	/* Change the SAI state */
mbed_official	106:ced8cbb51063	1278	HAL_SAI_ErrorCallback(hsai);
mbed_official	106:ced8cbb51063	1279	}
mbed_official	106:ced8cbb51063	1280	}
mbed_official	106:ced8cbb51063	1281
mbed_official	106:ced8cbb51063	1282	hsai->State= HAL_SAI_STATE_READY;
mbed_official	106:ced8cbb51063	1283	}
mbed_official	87:085cde657901	1284	HAL_SAI_TxCpltCallback(hsai);
mbed_official	87:085cde657901	1285	}
mbed_official	87:085cde657901	1286
mbed_official	87:085cde657901	1287	/**
mbed_official	87:085cde657901	1288	* @brief DMA SAI transmit process half complete callback
mbed_official	226:b062af740e40	1289	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1290	* the configuration information for the specified DMA module.
mbed_official	87:085cde657901	1291	* @retval None
mbed_official	87:085cde657901	1292	*/
mbed_official	87:085cde657901	1293	static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official	87:085cde657901	1294	{
mbed_official	87:085cde657901	1295	SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
mbed_official	87:085cde657901	1296
mbed_official	87:085cde657901	1297	HAL_SAI_TxHalfCpltCallback(hsai);
mbed_official	87:085cde657901	1298	}
mbed_official	87:085cde657901	1299
mbed_official	87:085cde657901	1300	/**
mbed_official	87:085cde657901	1301	* @brief DMA SAI receive process complete callback.
mbed_official	226:b062af740e40	1302	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1303	* the configuration information for the specified DMA module.
mbed_official	87:085cde657901	1304	* @retval None
mbed_official	87:085cde657901	1305	*/
mbed_official	87:085cde657901	1306	static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma)
mbed_official	87:085cde657901	1307	{
mbed_official	87:085cde657901	1308	SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	106:ced8cbb51063	1309	if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
mbed_official	106:ced8cbb51063	1310	{
mbed_official	106:ced8cbb51063	1311	/* Disable Rx DMA Request */
mbed_official	106:ced8cbb51063	1312	hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
mbed_official	106:ced8cbb51063	1313	hsai->RxXferCount = 0;
mbed_official	106:ced8cbb51063	1314
mbed_official	106:ced8cbb51063	1315	hsai->State = HAL_SAI_STATE_READY;
mbed_official	106:ced8cbb51063	1316	}
mbed_official	87:085cde657901	1317	HAL_SAI_RxCpltCallback(hsai);
mbed_official	87:085cde657901	1318	}
mbed_official	87:085cde657901	1319
mbed_official	87:085cde657901	1320	/**
mbed_official	87:085cde657901	1321	* @brief DMA SAI receive process half complete callback
mbed_official	226:b062af740e40	1322	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1323	* the configuration information for the specified DMA module.
mbed_official	87:085cde657901	1324	* @retval None
mbed_official	87:085cde657901	1325	*/
mbed_official	87:085cde657901	1326	static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official	87:085cde657901	1327	{
mbed_official	87:085cde657901	1328	SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
mbed_official	87:085cde657901	1329
mbed_official	87:085cde657901	1330	HAL_SAI_RxHalfCpltCallback(hsai);
mbed_official	87:085cde657901	1331	}
mbed_official	87:085cde657901	1332	/**
mbed_official	87:085cde657901	1333	* @brief DMA SAI communication error callback.
mbed_official	226:b062af740e40	1334	* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official	226:b062af740e40	1335	* the configuration information for the specified DMA module.
mbed_official	87:085cde657901	1336	* @retval None
mbed_official	87:085cde657901	1337	*/
mbed_official	87:085cde657901	1338	static void SAI_DMAError(DMA_HandleTypeDef *hdma)
mbed_official	87:085cde657901	1339	{
mbed_official	87:085cde657901	1340	SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	87:085cde657901	1341	/* Set the SAI state ready to be able to start again the process */
mbed_official	87:085cde657901	1342	hsai->State= HAL_SAI_STATE_READY;
mbed_official	87:085cde657901	1343	HAL_SAI_ErrorCallback(hsai);
mbed_official	87:085cde657901	1344
mbed_official	87:085cde657901	1345	hsai->TxXferCount = 0;
mbed_official	87:085cde657901	1346	hsai->RxXferCount = 0;
mbed_official	87:085cde657901	1347	}
mbed_official	87:085cde657901	1348
mbed_official	87:085cde657901	1349	/**
mbed_official	87:085cde657901	1350	* @}
mbed_official	87:085cde657901	1351	*/
mbed_official	87:085cde657901	1352
mbed_official	87:085cde657901	1353	#endif /* STM32F427xx \|\| STM32F437xx \|\| STM32F429xx \|\| STM32F439xx */
mbed_official	87:085cde657901	1354	#endif /* HAL_SAI_MODULE_ENABLED */
mbed_official	87:085cde657901	1355	/**
mbed_official	87:085cde657901	1356	* @}
mbed_official	87:085cde657901	1357	*/
mbed_official	87:085cde657901	1358
mbed_official	87:085cde657901	1359	/**
mbed_official	87:085cde657901	1360	* @}
mbed_official	87:085cde657901	1361	*/
mbed_official	87:085cde657901	1362
mbed_official	87:085cde657901	1363	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

Repository toolbox

Export to desktop IDE

Repository details

Type:	Library
Created:	13 Sep 2014
Imports:	4
Forks:	0
Commits:	324
Dependents:	1
Dependencies:	0
Followers:	2

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_sai.c@226:b062af740e40, 2014-06-11 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning