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Drivers/BSP/STM32746G-Discovery/stm32746g_discovery_audio.c@8:56384bddaba5, 2017-02-23 (annotated)

Committer:: Jerome Coutant
Date:: Thu Feb 23 14:14:09 2017 +0100
Revision:: 8:56384bddaba5
Parent:: 6:e1d9da7fe856
Child:: 9:df2ea349c37a

STM32Cube_FW_F7_V1.6.0 BSP_DISCO_F746NG

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User	Revision	Line number	New contents of line
bcostm	6:e1d9da7fe856	1	/**
bcostm	6:e1d9da7fe856	2	******************************************************************************
bcostm	6:e1d9da7fe856	3	* @file stm32746g_discovery_audio.c
bcostm	6:e1d9da7fe856	4	* @author MCD Application Team
Jerome Coutant	8:56384bddaba5	5	* @version V2.0.0
Jerome Coutant	8:56384bddaba5	6	* @date 30-December-2016
bcostm	6:e1d9da7fe856	7	* @brief This file provides the Audio driver for the STM32746G-Discovery board.
bcostm	6:e1d9da7fe856	8	@verbatim
bcostm	6:e1d9da7fe856	9	How To use this driver:
bcostm	6:e1d9da7fe856	10	-----------------------
bcostm	6:e1d9da7fe856	11	+ This driver supports STM32F7xx devices on STM32746G-Discovery (MB1191) board.
bcostm	6:e1d9da7fe856	12	+ Call the function BSP_AUDIO_OUT_Init(
bcostm	6:e1d9da7fe856	13	OutputDevice: physical output mode (OUTPUT_DEVICE_SPEAKER,
bcostm	6:e1d9da7fe856	14	OUTPUT_DEVICE_HEADPHONE or OUTPUT_DEVICE_BOTH)
bcostm	6:e1d9da7fe856	15	Volume : Initial volume to be set (0 is min (mute), 100 is max (100%)
bcostm	6:e1d9da7fe856	16	AudioFreq : Audio frequency in Hz (8000, 16000, 22500, 32000...)
bcostm	6:e1d9da7fe856	17	this parameter is relative to the audio file/stream type.
bcostm	6:e1d9da7fe856	18	)
bcostm	6:e1d9da7fe856	19	This function configures all the hardware required for the audio application (codec, I2C, SAI,
bcostm	6:e1d9da7fe856	20	GPIOs, DMA and interrupt if needed). This function returns AUDIO_OK if configuration is OK.
bcostm	6:e1d9da7fe856	21	If the returned value is different from AUDIO_OK or the function is stuck then the communication with
bcostm	6:e1d9da7fe856	22	the codec or the MFX has failed (try to un-plug the power or reset device in this case).
bcostm	6:e1d9da7fe856	23	- OUTPUT_DEVICE_SPEAKER : only speaker will be set as output for the audio stream.
bcostm	6:e1d9da7fe856	24	- OUTPUT_DEVICE_HEADPHONE: only headphones will be set as output for the audio stream.
bcostm	6:e1d9da7fe856	25	- OUTPUT_DEVICE_BOTH : both Speaker and Headphone are used as outputs for the audio stream
bcostm	6:e1d9da7fe856	26	at the same time.
bcostm	6:e1d9da7fe856	27	Note. On STM32746G-Discovery SAI_DMA is configured in CIRCULAR mode. Due to this the application
bcostm	6:e1d9da7fe856	28	does NOT need to call BSP_AUDIO_OUT_ChangeBuffer() to assure streaming.
bcostm	6:e1d9da7fe856	29	+ Call the function BSP_DISCOVERY_AUDIO_OUT_Play(
bcostm	6:e1d9da7fe856	30	pBuffer: pointer to the audio data file address
bcostm	6:e1d9da7fe856	31	Size : size of the buffer to be sent in Bytes
bcostm	6:e1d9da7fe856	32	)
bcostm	6:e1d9da7fe856	33	to start playing (for the first time) from the audio file/stream.
bcostm	6:e1d9da7fe856	34	+ Call the function BSP_AUDIO_OUT_Pause() to pause playing
bcostm	6:e1d9da7fe856	35	+ Call the function BSP_AUDIO_OUT_Resume() to resume playing.
bcostm	6:e1d9da7fe856	36	Note. After calling BSP_AUDIO_OUT_Pause() function for pause, only BSP_AUDIO_OUT_Resume() should be called
bcostm	6:e1d9da7fe856	37	for resume (it is not allowed to call BSP_AUDIO_OUT_Play() in this case).
bcostm	6:e1d9da7fe856	38	Note. This function should be called only when the audio file is played or paused (not stopped).
bcostm	6:e1d9da7fe856	39	+ For each mode, you may need to implement the relative callback functions into your code.
bcostm	6:e1d9da7fe856	40	The Callback functions are named AUDIO_OUT_XXX_CallBack() and only their prototypes are declared in
bcostm	6:e1d9da7fe856	41	the stm32746g_discovery_audio.h file. (refer to the example for more details on the callbacks implementations)
bcostm	6:e1d9da7fe856	42	+ To Stop playing, to modify the volume level, the frequency, the audio frame slot,
bcostm	6:e1d9da7fe856	43	the device output mode the mute or the stop, use the functions: BSP_AUDIO_OUT_SetVolume(),
bcostm	6:e1d9da7fe856	44	AUDIO_OUT_SetFrequency(), BSP_AUDIO_OUT_SetAudioFrameSlot(), BSP_AUDIO_OUT_SetOutputMode(),
bcostm	6:e1d9da7fe856	45	BSP_AUDIO_OUT_SetMute() and BSP_AUDIO_OUT_Stop().
bcostm	6:e1d9da7fe856	46	+ The driver API and the callback functions are at the end of the stm32746g_discovery_audio.h file.
bcostm	6:e1d9da7fe856	47
bcostm	6:e1d9da7fe856	48	Driver architecture:
bcostm	6:e1d9da7fe856	49	--------------------
bcostm	6:e1d9da7fe856	50	+ This driver provides the High Audio Layer: consists of the function API exported in the stm32746g_discovery_audio.h file
bcostm	6:e1d9da7fe856	51	(BSP_AUDIO_OUT_Init(), BSP_AUDIO_OUT_Play() ...)
bcostm	6:e1d9da7fe856	52	+ This driver provide also the Media Access Layer (MAL): which consists of functions allowing to access the media containing/
bcostm	6:e1d9da7fe856	53	providing the audio file/stream. These functions are also included as local functions into
bcostm	6:e1d9da7fe856	54	the stm32746g_discovery_audio_codec.c file (SAIx_Out_Init() and SAIx_Out_DeInit(), SAIx_In_Init() and SAIx_In_DeInit())
bcostm	6:e1d9da7fe856	55
bcostm	6:e1d9da7fe856	56	Known Limitations:
bcostm	6:e1d9da7fe856	57	------------------
bcostm	6:e1d9da7fe856	58	1- If the TDM Format used to play in parallel 2 audio Stream (the first Stream is configured in codec SLOT0 and second
bcostm	6:e1d9da7fe856	59	Stream in SLOT1) the Pause/Resume, volume and mute feature will control the both streams.
bcostm	6:e1d9da7fe856	60	2- Parsing of audio file is not implemented (in order to determine audio file properties: Mono/Stereo, Data size,
bcostm	6:e1d9da7fe856	61	File size, Audio Frequency, Audio Data header size ...). The configuration is fixed for the given audio file.
bcostm	6:e1d9da7fe856	62	3- Supports only Stereo audio streaming.
bcostm	6:e1d9da7fe856	63	4- Supports only 16-bits audio data size.
bcostm	6:e1d9da7fe856	64	@endverbatim
bcostm	6:e1d9da7fe856	65	******************************************************************************
bcostm	6:e1d9da7fe856	66	* @attention
bcostm	6:e1d9da7fe856	67	*
bcostm	6:e1d9da7fe856	68	* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
bcostm	6:e1d9da7fe856	69	*
bcostm	6:e1d9da7fe856	70	* Redistribution and use in source and binary forms, with or without modification,
bcostm	6:e1d9da7fe856	71	* are permitted provided that the following conditions are met:
bcostm	6:e1d9da7fe856	72	* 1. Redistributions of source code must retain the above copyright notice,
bcostm	6:e1d9da7fe856	73	* this list of conditions and the following disclaimer.
bcostm	6:e1d9da7fe856	74	* 2. Redistributions in binary form must reproduce the above copyright notice,
bcostm	6:e1d9da7fe856	75	* this list of conditions and the following disclaimer in the documentation
bcostm	6:e1d9da7fe856	76	* and/or other materials provided with the distribution.
bcostm	6:e1d9da7fe856	77	* 3. Neither the name of STMicroelectronics nor the names of its contributors
bcostm	6:e1d9da7fe856	78	* may be used to endorse or promote products derived from this software
bcostm	6:e1d9da7fe856	79	* without specific prior written permission.
bcostm	6:e1d9da7fe856	80	*
bcostm	6:e1d9da7fe856	81	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bcostm	6:e1d9da7fe856	82	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bcostm	6:e1d9da7fe856	83	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bcostm	6:e1d9da7fe856	84	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bcostm	6:e1d9da7fe856	85	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bcostm	6:e1d9da7fe856	86	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bcostm	6:e1d9da7fe856	87	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bcostm	6:e1d9da7fe856	88	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bcostm	6:e1d9da7fe856	89	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bcostm	6:e1d9da7fe856	90	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bcostm	6:e1d9da7fe856	91	*
bcostm	6:e1d9da7fe856	92	******************************************************************************
bcostm	6:e1d9da7fe856	93	*/
bcostm	6:e1d9da7fe856	94
bcostm	6:e1d9da7fe856	95	/* Includes ------------------------------------------------------------------*/
bcostm	6:e1d9da7fe856	96	#include "stm32746g_discovery_audio.h"
bcostm	6:e1d9da7fe856	97
bcostm	6:e1d9da7fe856	98	/** @addtogroup BSP
bcostm	6:e1d9da7fe856	99	* @{
bcostm	6:e1d9da7fe856	100	*/
bcostm	6:e1d9da7fe856	101
bcostm	6:e1d9da7fe856	102	/** @addtogroup STM32746G_DISCOVERY
bcostm	6:e1d9da7fe856	103	* @{
bcostm	6:e1d9da7fe856	104	*/
bcostm	6:e1d9da7fe856	105
bcostm	6:e1d9da7fe856	106	/** @defgroup STM32746G_DISCOVERY_AUDIO STM32746G_DISCOVERY AUDIO
bcostm	6:e1d9da7fe856	107	* @brief This file includes the low layer driver for wm8994 Audio Codec
bcostm	6:e1d9da7fe856	108	* available on STM32746G-Discovery board(MB1191).
bcostm	6:e1d9da7fe856	109	* @{
bcostm	6:e1d9da7fe856	110	*/
bcostm	6:e1d9da7fe856	111
bcostm	6:e1d9da7fe856	112	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Types STM32746G_DISCOVERY AUDIO Private Types
bcostm	6:e1d9da7fe856	113	* @{
bcostm	6:e1d9da7fe856	114	*/
bcostm	6:e1d9da7fe856	115	/**
bcostm	6:e1d9da7fe856	116	* @}
bcostm	6:e1d9da7fe856	117	*/
bcostm	6:e1d9da7fe856	118
bcostm	6:e1d9da7fe856	119	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Defines STM32746G_DISCOVERY AUDIO Private Defines
bcostm	6:e1d9da7fe856	120	* @{
bcostm	6:e1d9da7fe856	121	*/
bcostm	6:e1d9da7fe856	122	/**
bcostm	6:e1d9da7fe856	123	* @}
bcostm	6:e1d9da7fe856	124	*/
bcostm	6:e1d9da7fe856	125
bcostm	6:e1d9da7fe856	126	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Macros STM32746G_DISCOVERY AUDIO Private Macros
bcostm	6:e1d9da7fe856	127	* @{
bcostm	6:e1d9da7fe856	128	*/
bcostm	6:e1d9da7fe856	129	/**
bcostm	6:e1d9da7fe856	130	* @}
bcostm	6:e1d9da7fe856	131	*/
bcostm	6:e1d9da7fe856	132
bcostm	6:e1d9da7fe856	133	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Variables STM32746G_DISCOVERY AUDIO Private Variables
bcostm	6:e1d9da7fe856	134	* @{
bcostm	6:e1d9da7fe856	135	*/
bcostm	6:e1d9da7fe856	136	AUDIO_DrvTypeDef *audio_drv;
bcostm	6:e1d9da7fe856	137	SAI_HandleTypeDef haudio_out_sai={0};
bcostm	6:e1d9da7fe856	138	SAI_HandleTypeDef haudio_in_sai={0};
bcostm	6:e1d9da7fe856	139	TIM_HandleTypeDef haudio_tim;
bcostm	6:e1d9da7fe856	140
bcostm	6:e1d9da7fe856	141	uint16_t __IO AudioInVolume = DEFAULT_AUDIO_IN_VOLUME;
bcostm	6:e1d9da7fe856	142
bcostm	6:e1d9da7fe856	143	/**
bcostm	6:e1d9da7fe856	144	* @}
bcostm	6:e1d9da7fe856	145	*/
bcostm	6:e1d9da7fe856	146
bcostm	6:e1d9da7fe856	147	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Function_Prototypes STM32746G_DISCOVERY AUDIO Private Function Prototypes
bcostm	6:e1d9da7fe856	148	* @{
bcostm	6:e1d9da7fe856	149	*/
bcostm	6:e1d9da7fe856	150	static void AUDIO_IN_INT_IRQHandler(void); // MBED
bcostm	6:e1d9da7fe856	151	static void AUDIO_IN_SAIx_DMAx_IRQHandler(void); // MBED
bcostm	6:e1d9da7fe856	152	static void AUDIO_OUT_SAIx_DMAx_IRQHandler(void); // MBED
bcostm	6:e1d9da7fe856	153	static void SAIx_Out_Init(uint32_t AudioFreq);
bcostm	6:e1d9da7fe856	154	static void SAIx_Out_DeInit(void);
bcostm	6:e1d9da7fe856	155	static void SAIx_In_Init(uint32_t SaiOutMode, uint32_t SlotActive, uint32_t AudioFreq);
bcostm	6:e1d9da7fe856	156	static void SAIx_In_DeInit(void);
bcostm	6:e1d9da7fe856	157	/**
bcostm	6:e1d9da7fe856	158	* @}
bcostm	6:e1d9da7fe856	159	*/
bcostm	6:e1d9da7fe856	160
bcostm	6:e1d9da7fe856	161	/** @defgroup STM32746G_DISCOVERY_AUDIO_OUT_Exported_Functions STM32746G_DISCOVERY AUDIO Out Exported Functions
bcostm	6:e1d9da7fe856	162	* @{
bcostm	6:e1d9da7fe856	163	*/
bcostm	6:e1d9da7fe856	164
bcostm	6:e1d9da7fe856	165	/**
bcostm	6:e1d9da7fe856	166	* @brief Configures the audio peripherals.
bcostm	6:e1d9da7fe856	167	* @param OutputDevice: OUTPUT_DEVICE_SPEAKER, OUTPUT_DEVICE_HEADPHONE,
bcostm	6:e1d9da7fe856	168	* or OUTPUT_DEVICE_BOTH.
bcostm	6:e1d9da7fe856	169	* @param Volume: Initial volume level (from 0 (Mute) to 100 (Max))
bcostm	6:e1d9da7fe856	170	* @param AudioFreq: Audio frequency used to play the audio stream.
bcostm	6:e1d9da7fe856	171	* @note The I2S PLL input clock must be done in the user application.
bcostm	6:e1d9da7fe856	172	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	173	*/
bcostm	6:e1d9da7fe856	174	uint8_t BSP_AUDIO_OUT_Init(uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq)
bcostm	6:e1d9da7fe856	175	{
bcostm	6:e1d9da7fe856	176	uint8_t ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	177	uint32_t deviceid = 0x00;
bcostm	6:e1d9da7fe856	178
bcostm	6:e1d9da7fe856	179	/* Disable SAI */
bcostm	6:e1d9da7fe856	180	SAIx_Out_DeInit();
bcostm	6:e1d9da7fe856	181
bcostm	6:e1d9da7fe856	182	/* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */
bcostm	6:e1d9da7fe856	183	BSP_AUDIO_OUT_ClockConfig(&haudio_out_sai, AudioFreq, NULL);
bcostm	6:e1d9da7fe856	184
bcostm	6:e1d9da7fe856	185	/* SAI data transfer preparation:
bcostm	6:e1d9da7fe856	186	Prepare the Media to be used for the audio transfer from memory to SAI peripheral */
bcostm	6:e1d9da7fe856	187	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
bcostm	6:e1d9da7fe856	188	if(HAL_SAI_GetState(&haudio_out_sai) == HAL_SAI_STATE_RESET)
bcostm	6:e1d9da7fe856	189	{
bcostm	6:e1d9da7fe856	190	/* Init the SAI MSP: this __weak function can be redefined by the application*/
bcostm	6:e1d9da7fe856	191	BSP_AUDIO_OUT_MspInit(&haudio_out_sai, NULL);
bcostm	6:e1d9da7fe856	192	}
bcostm	6:e1d9da7fe856	193	SAIx_Out_Init(AudioFreq);
bcostm	6:e1d9da7fe856	194
bcostm	6:e1d9da7fe856	195	/* wm8994 codec initialization */
bcostm	6:e1d9da7fe856	196	deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS);
bcostm	6:e1d9da7fe856	197
bcostm	6:e1d9da7fe856	198	if((deviceid) == WM8994_ID)
bcostm	6:e1d9da7fe856	199	{
bcostm	6:e1d9da7fe856	200	/* Reset the Codec Registers */
bcostm	6:e1d9da7fe856	201	wm8994_drv.Reset(AUDIO_I2C_ADDRESS);
bcostm	6:e1d9da7fe856	202	/* Initialize the audio driver structure */
bcostm	6:e1d9da7fe856	203	audio_drv = &wm8994_drv;
bcostm	6:e1d9da7fe856	204	ret = AUDIO_OK;
bcostm	6:e1d9da7fe856	205	}
bcostm	6:e1d9da7fe856	206	else
bcostm	6:e1d9da7fe856	207	{
bcostm	6:e1d9da7fe856	208	ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	209	}
bcostm	6:e1d9da7fe856	210
bcostm	6:e1d9da7fe856	211	if(ret == AUDIO_OK)
bcostm	6:e1d9da7fe856	212	{
bcostm	6:e1d9da7fe856	213	/* Initialize the codec internal registers */
bcostm	6:e1d9da7fe856	214	audio_drv->Init(AUDIO_I2C_ADDRESS, OutputDevice, Volume, AudioFreq);
bcostm	6:e1d9da7fe856	215	}
bcostm	6:e1d9da7fe856	216
bcostm	6:e1d9da7fe856	217	return ret;
bcostm	6:e1d9da7fe856	218	}
bcostm	6:e1d9da7fe856	219
bcostm	6:e1d9da7fe856	220	/**
bcostm	6:e1d9da7fe856	221	* @brief Starts playing audio stream from a data buffer for a determined size.
bcostm	6:e1d9da7fe856	222	* @param pBuffer: Pointer to the buffer
bcostm	6:e1d9da7fe856	223	* @param Size: Number of audio data in BYTES unit.
bcostm	6:e1d9da7fe856	224	* In memory, first element is for left channel, second element is for right channel
bcostm	6:e1d9da7fe856	225	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	226	*/
bcostm	6:e1d9da7fe856	227	uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size)
bcostm	6:e1d9da7fe856	228	{
bcostm	6:e1d9da7fe856	229	/* Call the audio Codec Play function */
bcostm	6:e1d9da7fe856	230	if(audio_drv->Play(AUDIO_I2C_ADDRESS, pBuffer, Size) != 0)
bcostm	6:e1d9da7fe856	231	{
bcostm	6:e1d9da7fe856	232	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	233	}
bcostm	6:e1d9da7fe856	234	else
bcostm	6:e1d9da7fe856	235	{
bcostm	6:e1d9da7fe856	236	/* Update the Media layer and enable it for play */
bcostm	6:e1d9da7fe856	237	HAL_SAI_Transmit_DMA(&haudio_out_sai, (uint8_t*) pBuffer, DMA_MAX(Size / AUDIODATA_SIZE));
bcostm	6:e1d9da7fe856	238
bcostm	6:e1d9da7fe856	239	return AUDIO_OK;
bcostm	6:e1d9da7fe856	240	}
bcostm	6:e1d9da7fe856	241	}
bcostm	6:e1d9da7fe856	242
bcostm	6:e1d9da7fe856	243	/**
bcostm	6:e1d9da7fe856	244	* @brief Sends n-Bytes on the SAI interface.
bcostm	6:e1d9da7fe856	245	* @param pData: pointer on data address
bcostm	6:e1d9da7fe856	246	* @param Size: number of data to be written
bcostm	6:e1d9da7fe856	247	* @retval None
bcostm	6:e1d9da7fe856	248	*/
bcostm	6:e1d9da7fe856	249	void BSP_AUDIO_OUT_ChangeBuffer(uint16_t *pData, uint16_t Size)
bcostm	6:e1d9da7fe856	250	{
bcostm	6:e1d9da7fe856	251	HAL_SAI_Transmit_DMA(&haudio_out_sai, (uint8_t*) pData, Size);
bcostm	6:e1d9da7fe856	252	}
bcostm	6:e1d9da7fe856	253
bcostm	6:e1d9da7fe856	254	/**
bcostm	6:e1d9da7fe856	255	* @brief This function Pauses the audio file stream. In case
bcostm	6:e1d9da7fe856	256	* of using DMA, the DMA Pause feature is used.
bcostm	6:e1d9da7fe856	257	* @note When calling BSP_AUDIO_OUT_Pause() function for pause, only
bcostm	6:e1d9da7fe856	258	* BSP_AUDIO_OUT_Resume() function should be called for resume (use of BSP_AUDIO_OUT_Play()
bcostm	6:e1d9da7fe856	259	* function for resume could lead to unexpected behaviour).
bcostm	6:e1d9da7fe856	260	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	261	*/
bcostm	6:e1d9da7fe856	262	uint8_t BSP_AUDIO_OUT_Pause(void)
bcostm	6:e1d9da7fe856	263	{
bcostm	6:e1d9da7fe856	264	/* Call the Audio Codec Pause/Resume function */
bcostm	6:e1d9da7fe856	265	if(audio_drv->Pause(AUDIO_I2C_ADDRESS) != 0)
bcostm	6:e1d9da7fe856	266	{
bcostm	6:e1d9da7fe856	267	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	268	}
bcostm	6:e1d9da7fe856	269	else
bcostm	6:e1d9da7fe856	270	{
bcostm	6:e1d9da7fe856	271	/* Call the Media layer pause function */
bcostm	6:e1d9da7fe856	272	HAL_SAI_DMAPause(&haudio_out_sai);
bcostm	6:e1d9da7fe856	273
bcostm	6:e1d9da7fe856	274	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	275	return AUDIO_OK;
bcostm	6:e1d9da7fe856	276	}
bcostm	6:e1d9da7fe856	277	}
bcostm	6:e1d9da7fe856	278
bcostm	6:e1d9da7fe856	279	/**
bcostm	6:e1d9da7fe856	280	* @brief This function Resumes the audio file stream.
bcostm	6:e1d9da7fe856	281	* @note When calling BSP_AUDIO_OUT_Pause() function for pause, only
bcostm	6:e1d9da7fe856	282	* BSP_AUDIO_OUT_Resume() function should be called for resume (use of BSP_AUDIO_OUT_Play()
bcostm	6:e1d9da7fe856	283	* function for resume could lead to unexpected behaviour).
bcostm	6:e1d9da7fe856	284	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	285	*/
bcostm	6:e1d9da7fe856	286	uint8_t BSP_AUDIO_OUT_Resume(void)
bcostm	6:e1d9da7fe856	287	{
bcostm	6:e1d9da7fe856	288	/* Call the Audio Codec Pause/Resume function */
bcostm	6:e1d9da7fe856	289	if(audio_drv->Resume(AUDIO_I2C_ADDRESS) != 0)
bcostm	6:e1d9da7fe856	290	{
bcostm	6:e1d9da7fe856	291	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	292	}
bcostm	6:e1d9da7fe856	293	else
bcostm	6:e1d9da7fe856	294	{
bcostm	6:e1d9da7fe856	295	/* Call the Media layer pause/resume function */
bcostm	6:e1d9da7fe856	296	HAL_SAI_DMAResume(&haudio_out_sai);
bcostm	6:e1d9da7fe856	297
bcostm	6:e1d9da7fe856	298	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	299	return AUDIO_OK;
bcostm	6:e1d9da7fe856	300	}
bcostm	6:e1d9da7fe856	301	}
bcostm	6:e1d9da7fe856	302
bcostm	6:e1d9da7fe856	303	/**
bcostm	6:e1d9da7fe856	304	* @brief Stops audio playing and Power down the Audio Codec.
bcostm	6:e1d9da7fe856	305	* @param Option: could be one of the following parameters
bcostm	6:e1d9da7fe856	306	* - CODEC_PDWN_SW: for software power off (by writing registers).
bcostm	6:e1d9da7fe856	307	* Then no need to reconfigure the Codec after power on.
bcostm	6:e1d9da7fe856	308	* - CODEC_PDWN_HW: completely shut down the codec (physically).
bcostm	6:e1d9da7fe856	309	* Then need to reconfigure the Codec after power on.
bcostm	6:e1d9da7fe856	310	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	311	*/
bcostm	6:e1d9da7fe856	312	uint8_t BSP_AUDIO_OUT_Stop(uint32_t Option)
bcostm	6:e1d9da7fe856	313	{
bcostm	6:e1d9da7fe856	314	/* Call the Media layer stop function */
bcostm	6:e1d9da7fe856	315	HAL_SAI_DMAStop(&haudio_out_sai);
bcostm	6:e1d9da7fe856	316
bcostm	6:e1d9da7fe856	317	/* Call Audio Codec Stop function */
bcostm	6:e1d9da7fe856	318	if(audio_drv->Stop(AUDIO_I2C_ADDRESS, Option) != 0)
bcostm	6:e1d9da7fe856	319	{
bcostm	6:e1d9da7fe856	320	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	321	}
bcostm	6:e1d9da7fe856	322	else
bcostm	6:e1d9da7fe856	323	{
bcostm	6:e1d9da7fe856	324	if(Option == CODEC_PDWN_HW)
bcostm	6:e1d9da7fe856	325	{
bcostm	6:e1d9da7fe856	326	/* Wait at least 100us */
bcostm	6:e1d9da7fe856	327	HAL_Delay(1);
bcostm	6:e1d9da7fe856	328	}
bcostm	6:e1d9da7fe856	329	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	330	return AUDIO_OK;
bcostm	6:e1d9da7fe856	331	}
bcostm	6:e1d9da7fe856	332	}
bcostm	6:e1d9da7fe856	333
bcostm	6:e1d9da7fe856	334	/**
bcostm	6:e1d9da7fe856	335	* @brief Controls the current audio volume level.
bcostm	6:e1d9da7fe856	336	* @param Volume: Volume level to be set in percentage from 0% to 100% (0 for
bcostm	6:e1d9da7fe856	337	* Mute and 100 for Max volume level).
bcostm	6:e1d9da7fe856	338	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	339	*/
bcostm	6:e1d9da7fe856	340	uint8_t BSP_AUDIO_OUT_SetVolume(uint8_t Volume)
bcostm	6:e1d9da7fe856	341	{
bcostm	6:e1d9da7fe856	342	/* Call the codec volume control function with converted volume value */
bcostm	6:e1d9da7fe856	343	if(audio_drv->SetVolume(AUDIO_I2C_ADDRESS, Volume) != 0)
bcostm	6:e1d9da7fe856	344	{
bcostm	6:e1d9da7fe856	345	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	346	}
bcostm	6:e1d9da7fe856	347	else
bcostm	6:e1d9da7fe856	348	{
bcostm	6:e1d9da7fe856	349	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	350	return AUDIO_OK;
bcostm	6:e1d9da7fe856	351	}
bcostm	6:e1d9da7fe856	352	}
bcostm	6:e1d9da7fe856	353
bcostm	6:e1d9da7fe856	354	/**
bcostm	6:e1d9da7fe856	355	* @brief Enables or disables the MUTE mode by software
bcostm	6:e1d9da7fe856	356	* @param Cmd: Could be AUDIO_MUTE_ON to mute sound or AUDIO_MUTE_OFF to
bcostm	6:e1d9da7fe856	357	* unmute the codec and restore previous volume level.
bcostm	6:e1d9da7fe856	358	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	359	*/
bcostm	6:e1d9da7fe856	360	uint8_t BSP_AUDIO_OUT_SetMute(uint32_t Cmd)
bcostm	6:e1d9da7fe856	361	{
bcostm	6:e1d9da7fe856	362	/* Call the Codec Mute function */
bcostm	6:e1d9da7fe856	363	if(audio_drv->SetMute(AUDIO_I2C_ADDRESS, Cmd) != 0)
bcostm	6:e1d9da7fe856	364	{
bcostm	6:e1d9da7fe856	365	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	366	}
bcostm	6:e1d9da7fe856	367	else
bcostm	6:e1d9da7fe856	368	{
bcostm	6:e1d9da7fe856	369	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	370	return AUDIO_OK;
bcostm	6:e1d9da7fe856	371	}
bcostm	6:e1d9da7fe856	372	}
bcostm	6:e1d9da7fe856	373
bcostm	6:e1d9da7fe856	374	/**
bcostm	6:e1d9da7fe856	375	* @brief Switch dynamically (while audio file is played) the output target
bcostm	6:e1d9da7fe856	376	* (speaker or headphone).
bcostm	6:e1d9da7fe856	377	* @param Output: The audio output target: OUTPUT_DEVICE_SPEAKER,
bcostm	6:e1d9da7fe856	378	* OUTPUT_DEVICE_HEADPHONE or OUTPUT_DEVICE_BOTH
bcostm	6:e1d9da7fe856	379	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	380	*/
bcostm	6:e1d9da7fe856	381	uint8_t BSP_AUDIO_OUT_SetOutputMode(uint8_t Output)
bcostm	6:e1d9da7fe856	382	{
bcostm	6:e1d9da7fe856	383	/* Call the Codec output device function */
bcostm	6:e1d9da7fe856	384	if(audio_drv->SetOutputMode(AUDIO_I2C_ADDRESS, Output) != 0)
bcostm	6:e1d9da7fe856	385	{
bcostm	6:e1d9da7fe856	386	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	387	}
bcostm	6:e1d9da7fe856	388	else
bcostm	6:e1d9da7fe856	389	{
bcostm	6:e1d9da7fe856	390	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	391	return AUDIO_OK;
bcostm	6:e1d9da7fe856	392	}
bcostm	6:e1d9da7fe856	393	}
bcostm	6:e1d9da7fe856	394
bcostm	6:e1d9da7fe856	395	/**
bcostm	6:e1d9da7fe856	396	* @brief Updates the audio frequency.
bcostm	6:e1d9da7fe856	397	* @param AudioFreq: Audio frequency used to play the audio stream.
bcostm	6:e1d9da7fe856	398	* @note This API should be called after the BSP_AUDIO_OUT_Init() to adjust the
bcostm	6:e1d9da7fe856	399	* audio frequency.
bcostm	6:e1d9da7fe856	400	* @retval None
bcostm	6:e1d9da7fe856	401	*/
bcostm	6:e1d9da7fe856	402	void BSP_AUDIO_OUT_SetFrequency(uint32_t AudioFreq)
bcostm	6:e1d9da7fe856	403	{
bcostm	6:e1d9da7fe856	404	/* PLL clock is set depending by the AudioFreq (44.1khz vs 48khz groups) */
bcostm	6:e1d9da7fe856	405	BSP_AUDIO_OUT_ClockConfig(&haudio_out_sai, AudioFreq, NULL);
bcostm	6:e1d9da7fe856	406
bcostm	6:e1d9da7fe856	407	/* Disable SAI peripheral to allow access to SAI internal registers */
bcostm	6:e1d9da7fe856	408	__HAL_SAI_DISABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	409
bcostm	6:e1d9da7fe856	410	/* Update the SAI audio frequency configuration */
bcostm	6:e1d9da7fe856	411	haudio_out_sai.Init.AudioFrequency = AudioFreq;
bcostm	6:e1d9da7fe856	412	HAL_SAI_Init(&haudio_out_sai);
bcostm	6:e1d9da7fe856	413
bcostm	6:e1d9da7fe856	414	/* Enable SAI peripheral to generate MCLK */
bcostm	6:e1d9da7fe856	415	__HAL_SAI_ENABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	416	}
bcostm	6:e1d9da7fe856	417
bcostm	6:e1d9da7fe856	418	/**
bcostm	6:e1d9da7fe856	419	* @brief Updates the Audio frame slot configuration.
bcostm	6:e1d9da7fe856	420	* @param AudioFrameSlot: specifies the audio Frame slot
bcostm	6:e1d9da7fe856	421	* This parameter can be one of the following values
bcostm	6:e1d9da7fe856	422	* @arg CODEC_AUDIOFRAME_SLOT_0123
bcostm	6:e1d9da7fe856	423	* @arg CODEC_AUDIOFRAME_SLOT_02
bcostm	6:e1d9da7fe856	424	* @arg CODEC_AUDIOFRAME_SLOT_13
bcostm	6:e1d9da7fe856	425	* @note This API should be called after the BSP_AUDIO_OUT_Init() to adjust the
bcostm	6:e1d9da7fe856	426	* audio frame slot.
bcostm	6:e1d9da7fe856	427	* @retval None
bcostm	6:e1d9da7fe856	428	*/
bcostm	6:e1d9da7fe856	429	void BSP_AUDIO_OUT_SetAudioFrameSlot(uint32_t AudioFrameSlot)
bcostm	6:e1d9da7fe856	430	{
bcostm	6:e1d9da7fe856	431	/* Disable SAI peripheral to allow access to SAI internal registers */
bcostm	6:e1d9da7fe856	432	__HAL_SAI_DISABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	433
bcostm	6:e1d9da7fe856	434	/* Update the SAI audio frame slot configuration */
bcostm	6:e1d9da7fe856	435	haudio_out_sai.SlotInit.SlotActive = AudioFrameSlot;
bcostm	6:e1d9da7fe856	436	HAL_SAI_Init(&haudio_out_sai);
bcostm	6:e1d9da7fe856	437
bcostm	6:e1d9da7fe856	438	/* Enable SAI peripheral to generate MCLK */
bcostm	6:e1d9da7fe856	439	__HAL_SAI_ENABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	440	}
bcostm	6:e1d9da7fe856	441
bcostm	6:e1d9da7fe856	442	/**
bcostm	6:e1d9da7fe856	443	* @brief Deinit the audio peripherals.
bcostm	6:e1d9da7fe856	444	* @retval None
bcostm	6:e1d9da7fe856	445	*/
bcostm	6:e1d9da7fe856	446	void BSP_AUDIO_OUT_DeInit(void)
bcostm	6:e1d9da7fe856	447	{
bcostm	6:e1d9da7fe856	448	SAIx_Out_DeInit();
bcostm	6:e1d9da7fe856	449	/* DeInit the SAI MSP : this __weak function can be rewritten by the application */
bcostm	6:e1d9da7fe856	450	BSP_AUDIO_OUT_MspDeInit(&haudio_out_sai, NULL);
bcostm	6:e1d9da7fe856	451	}
bcostm	6:e1d9da7fe856	452
bcostm	6:e1d9da7fe856	453	/**
bcostm	6:e1d9da7fe856	454	* @brief Tx Transfer completed callbacks.
bcostm	6:e1d9da7fe856	455	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	456	* @retval None
bcostm	6:e1d9da7fe856	457	*/
bcostm	6:e1d9da7fe856	458	void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai)
bcostm	6:e1d9da7fe856	459	{
bcostm	6:e1d9da7fe856	460	/* Manage the remaining file size and new address offset: This function
bcostm	6:e1d9da7fe856	461	should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */
bcostm	6:e1d9da7fe856	462	BSP_AUDIO_OUT_TransferComplete_CallBack();
bcostm	6:e1d9da7fe856	463	}
bcostm	6:e1d9da7fe856	464
bcostm	6:e1d9da7fe856	465	/**
bcostm	6:e1d9da7fe856	466	* @brief Tx Half Transfer completed callbacks.
bcostm	6:e1d9da7fe856	467	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	468	* @retval None
bcostm	6:e1d9da7fe856	469	*/
bcostm	6:e1d9da7fe856	470	void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai)
bcostm	6:e1d9da7fe856	471	{
bcostm	6:e1d9da7fe856	472	/* Manage the remaining file size and new address offset: This function
bcostm	6:e1d9da7fe856	473	should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */
bcostm	6:e1d9da7fe856	474	BSP_AUDIO_OUT_HalfTransfer_CallBack();
bcostm	6:e1d9da7fe856	475	}
bcostm	6:e1d9da7fe856	476
bcostm	6:e1d9da7fe856	477	/**
bcostm	6:e1d9da7fe856	478	* @brief SAI error callbacks.
bcostm	6:e1d9da7fe856	479	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	480	* @retval None
bcostm	6:e1d9da7fe856	481	*/
bcostm	6:e1d9da7fe856	482	void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai)
bcostm	6:e1d9da7fe856	483	{
bcostm	6:e1d9da7fe856	484	HAL_SAI_StateTypeDef audio_out_state;
bcostm	6:e1d9da7fe856	485	HAL_SAI_StateTypeDef audio_in_state;
bcostm	6:e1d9da7fe856	486
bcostm	6:e1d9da7fe856	487	audio_out_state = HAL_SAI_GetState(&haudio_out_sai);
bcostm	6:e1d9da7fe856	488	audio_in_state = HAL_SAI_GetState(&haudio_in_sai);
bcostm	6:e1d9da7fe856	489
bcostm	6:e1d9da7fe856	490	/* Determines if it is an audio out or audio in error */
bcostm	6:e1d9da7fe856	491	if ((audio_out_state == HAL_SAI_STATE_BUSY) \|\| (audio_out_state == HAL_SAI_STATE_BUSY_TX))
bcostm	6:e1d9da7fe856	492	{
bcostm	6:e1d9da7fe856	493	BSP_AUDIO_OUT_Error_CallBack();
bcostm	6:e1d9da7fe856	494	}
bcostm	6:e1d9da7fe856	495
bcostm	6:e1d9da7fe856	496	if ((audio_in_state == HAL_SAI_STATE_BUSY) \|\| (audio_in_state == HAL_SAI_STATE_BUSY_RX))
bcostm	6:e1d9da7fe856	497	{
bcostm	6:e1d9da7fe856	498	BSP_AUDIO_IN_Error_CallBack();
bcostm	6:e1d9da7fe856	499	}
bcostm	6:e1d9da7fe856	500	}
bcostm	6:e1d9da7fe856	501
bcostm	6:e1d9da7fe856	502	/**
bcostm	6:e1d9da7fe856	503	* @brief Manages the DMA full Transfer complete event.
bcostm	6:e1d9da7fe856	504	* @retval None
bcostm	6:e1d9da7fe856	505	*/
bcostm	6:e1d9da7fe856	506	__weak void BSP_AUDIO_OUT_TransferComplete_CallBack(void)
bcostm	6:e1d9da7fe856	507	{
bcostm	6:e1d9da7fe856	508	}
bcostm	6:e1d9da7fe856	509
bcostm	6:e1d9da7fe856	510	/**
bcostm	6:e1d9da7fe856	511	* @brief Manages the DMA Half Transfer complete event.
bcostm	6:e1d9da7fe856	512	* @retval None
bcostm	6:e1d9da7fe856	513	*/
bcostm	6:e1d9da7fe856	514	__weak void BSP_AUDIO_OUT_HalfTransfer_CallBack(void)
bcostm	6:e1d9da7fe856	515	{
bcostm	6:e1d9da7fe856	516	}
bcostm	6:e1d9da7fe856	517
bcostm	6:e1d9da7fe856	518	/**
bcostm	6:e1d9da7fe856	519	* @brief Manages the DMA FIFO error event.
bcostm	6:e1d9da7fe856	520	* @retval None
bcostm	6:e1d9da7fe856	521	*/
bcostm	6:e1d9da7fe856	522	__weak void BSP_AUDIO_OUT_Error_CallBack(void)
bcostm	6:e1d9da7fe856	523	{
bcostm	6:e1d9da7fe856	524	}
bcostm	6:e1d9da7fe856	525
bcostm	6:e1d9da7fe856	526	/**
bcostm	6:e1d9da7fe856	527	* @brief Initializes BSP_AUDIO_OUT MSP.
bcostm	6:e1d9da7fe856	528	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	529	* @param Params
bcostm	6:e1d9da7fe856	530	* @retval None
bcostm	6:e1d9da7fe856	531	*/
bcostm	6:e1d9da7fe856	532	__weak void BSP_AUDIO_OUT_MspInit(SAI_HandleTypeDef hsai, void Params)
bcostm	6:e1d9da7fe856	533	{
bcostm	6:e1d9da7fe856	534	static DMA_HandleTypeDef hdma_sai_tx;
bcostm	6:e1d9da7fe856	535	GPIO_InitTypeDef gpio_init_structure;
bcostm	6:e1d9da7fe856	536
bcostm	6:e1d9da7fe856	537	/* Enable SAI clock */
bcostm	6:e1d9da7fe856	538	AUDIO_OUT_SAIx_CLK_ENABLE();
bcostm	6:e1d9da7fe856	539
bcostm	6:e1d9da7fe856	540	/* Enable GPIO clock */
bcostm	6:e1d9da7fe856	541	AUDIO_OUT_SAIx_MCLK_ENABLE();
bcostm	6:e1d9da7fe856	542	AUDIO_OUT_SAIx_SCK_SD_ENABLE();
bcostm	6:e1d9da7fe856	543	AUDIO_OUT_SAIx_FS_ENABLE();
bcostm	6:e1d9da7fe856	544	/* CODEC_SAI pins configuration: FS, SCK, MCK and SD pins ------------------*/
bcostm	6:e1d9da7fe856	545	gpio_init_structure.Pin = AUDIO_OUT_SAIx_FS_PIN;
bcostm	6:e1d9da7fe856	546	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
bcostm	6:e1d9da7fe856	547	gpio_init_structure.Pull = GPIO_NOPULL;
bcostm	6:e1d9da7fe856	548	gpio_init_structure.Speed = GPIO_SPEED_HIGH;
bcostm	6:e1d9da7fe856	549	gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF;
bcostm	6:e1d9da7fe856	550	HAL_GPIO_Init(AUDIO_OUT_SAIx_FS_GPIO_PORT, &gpio_init_structure);
bcostm	6:e1d9da7fe856	551
bcostm	6:e1d9da7fe856	552	gpio_init_structure.Pin = AUDIO_OUT_SAIx_SCK_PIN;
bcostm	6:e1d9da7fe856	553	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
bcostm	6:e1d9da7fe856	554	gpio_init_structure.Pull = GPIO_NOPULL;
bcostm	6:e1d9da7fe856	555	gpio_init_structure.Speed = GPIO_SPEED_HIGH;
bcostm	6:e1d9da7fe856	556	gpio_init_structure.Alternate = AUDIO_OUT_SAIx_SCK_AF;
bcostm	6:e1d9da7fe856	557	HAL_GPIO_Init(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, &gpio_init_structure);
bcostm	6:e1d9da7fe856	558
bcostm	6:e1d9da7fe856	559	gpio_init_structure.Pin = AUDIO_OUT_SAIx_SD_PIN;
bcostm	6:e1d9da7fe856	560	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
bcostm	6:e1d9da7fe856	561	gpio_init_structure.Pull = GPIO_NOPULL;
bcostm	6:e1d9da7fe856	562	gpio_init_structure.Speed = GPIO_SPEED_HIGH;
bcostm	6:e1d9da7fe856	563	gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF;
bcostm	6:e1d9da7fe856	564	HAL_GPIO_Init(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, &gpio_init_structure);
bcostm	6:e1d9da7fe856	565
bcostm	6:e1d9da7fe856	566	gpio_init_structure.Pin = AUDIO_OUT_SAIx_MCLK_PIN;
bcostm	6:e1d9da7fe856	567	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
bcostm	6:e1d9da7fe856	568	gpio_init_structure.Pull = GPIO_NOPULL;
bcostm	6:e1d9da7fe856	569	gpio_init_structure.Speed = GPIO_SPEED_HIGH;
bcostm	6:e1d9da7fe856	570	gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF;
bcostm	6:e1d9da7fe856	571	HAL_GPIO_Init(AUDIO_OUT_SAIx_MCLK_GPIO_PORT, &gpio_init_structure);
bcostm	6:e1d9da7fe856	572
bcostm	6:e1d9da7fe856	573	/* Enable the DMA clock */
bcostm	6:e1d9da7fe856	574	AUDIO_OUT_SAIx_DMAx_CLK_ENABLE();
bcostm	6:e1d9da7fe856	575
bcostm	6:e1d9da7fe856	576	if(hsai->Instance == AUDIO_OUT_SAIx)
bcostm	6:e1d9da7fe856	577	{
bcostm	6:e1d9da7fe856	578	/* Configure the hdma_saiTx handle parameters */
bcostm	6:e1d9da7fe856	579	hdma_sai_tx.Init.Channel = AUDIO_OUT_SAIx_DMAx_CHANNEL;
bcostm	6:e1d9da7fe856	580	hdma_sai_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
bcostm	6:e1d9da7fe856	581	hdma_sai_tx.Init.PeriphInc = DMA_PINC_DISABLE;
bcostm	6:e1d9da7fe856	582	hdma_sai_tx.Init.MemInc = DMA_MINC_ENABLE;
bcostm	6:e1d9da7fe856	583	hdma_sai_tx.Init.PeriphDataAlignment = AUDIO_OUT_SAIx_DMAx_PERIPH_DATA_SIZE;
bcostm	6:e1d9da7fe856	584	hdma_sai_tx.Init.MemDataAlignment = AUDIO_OUT_SAIx_DMAx_MEM_DATA_SIZE;
bcostm	6:e1d9da7fe856	585	hdma_sai_tx.Init.Mode = DMA_CIRCULAR;
bcostm	6:e1d9da7fe856	586	hdma_sai_tx.Init.Priority = DMA_PRIORITY_HIGH;
bcostm	6:e1d9da7fe856	587	hdma_sai_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
bcostm	6:e1d9da7fe856	588	hdma_sai_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
bcostm	6:e1d9da7fe856	589	hdma_sai_tx.Init.MemBurst = DMA_MBURST_SINGLE;
bcostm	6:e1d9da7fe856	590	hdma_sai_tx.Init.PeriphBurst = DMA_PBURST_SINGLE;
bcostm	6:e1d9da7fe856	591
bcostm	6:e1d9da7fe856	592	hdma_sai_tx.Instance = AUDIO_OUT_SAIx_DMAx_STREAM;
bcostm	6:e1d9da7fe856	593
bcostm	6:e1d9da7fe856	594	/* Associate the DMA handle */
bcostm	6:e1d9da7fe856	595	__HAL_LINKDMA(hsai, hdmatx, hdma_sai_tx);
bcostm	6:e1d9da7fe856	596
bcostm	6:e1d9da7fe856	597	/* Deinitialize the Stream for new transfer */
bcostm	6:e1d9da7fe856	598	HAL_DMA_DeInit(&hdma_sai_tx);
bcostm	6:e1d9da7fe856	599
bcostm	6:e1d9da7fe856	600	/* Configure the DMA Stream */
bcostm	6:e1d9da7fe856	601	HAL_DMA_Init(&hdma_sai_tx);
bcostm	6:e1d9da7fe856	602	}
bcostm	6:e1d9da7fe856	603	#if ( __MBED__ == 1)
bcostm	6:e1d9da7fe856	604	// Enable interrupt
bcostm	6:e1d9da7fe856	605	IRQn_Type irqn = (IRQn_Type)(AUDIO_OUT_SAIx_DMAx_IRQ);
bcostm	6:e1d9da7fe856	606	NVIC_ClearPendingIRQ(irqn);
bcostm	6:e1d9da7fe856	607	NVIC_DisableIRQ(irqn);
bcostm	6:e1d9da7fe856	608	NVIC_SetPriority(irqn, AUDIO_OUT_IRQ_PREPRIO);
bcostm	6:e1d9da7fe856	609	NVIC_SetVector(irqn, (uint32_t)AUDIO_OUT_SAIx_DMAx_IRQHandler);
bcostm	6:e1d9da7fe856	610	NVIC_EnableIRQ(irqn);
bcostm	6:e1d9da7fe856	611
bcostm	6:e1d9da7fe856	612	#else
bcostm	6:e1d9da7fe856	613	/* SAI DMA IRQ Channel configuration */
bcostm	6:e1d9da7fe856	614	HAL_NVIC_SetPriority(AUDIO_OUT_SAIx_DMAx_IRQ, AUDIO_OUT_IRQ_PREPRIO, 0);
bcostm	6:e1d9da7fe856	615	HAL_NVIC_EnableIRQ(AUDIO_OUT_SAIx_DMAx_IRQ);
bcostm	6:e1d9da7fe856	616	#endif
bcostm	6:e1d9da7fe856	617	}
bcostm	6:e1d9da7fe856	618
bcostm	6:e1d9da7fe856	619	/**
bcostm	6:e1d9da7fe856	620	* @brief Deinitializes SAI MSP.
bcostm	6:e1d9da7fe856	621	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	622	* @param Params
bcostm	6:e1d9da7fe856	623	* @retval None
bcostm	6:e1d9da7fe856	624	*/
bcostm	6:e1d9da7fe856	625	__weak void BSP_AUDIO_OUT_MspDeInit(SAI_HandleTypeDef hsai, void Params)
bcostm	6:e1d9da7fe856	626	{
bcostm	6:e1d9da7fe856	627	GPIO_InitTypeDef gpio_init_structure;
bcostm	6:e1d9da7fe856	628
bcostm	6:e1d9da7fe856	629	/* SAI DMA IRQ Channel deactivation */
bcostm	6:e1d9da7fe856	630	HAL_NVIC_DisableIRQ(AUDIO_OUT_SAIx_DMAx_IRQ);
bcostm	6:e1d9da7fe856	631
bcostm	6:e1d9da7fe856	632	if(hsai->Instance == AUDIO_OUT_SAIx)
bcostm	6:e1d9da7fe856	633	{
bcostm	6:e1d9da7fe856	634	/* Deinitialize the DMA stream */
bcostm	6:e1d9da7fe856	635	HAL_DMA_DeInit(hsai->hdmatx);
bcostm	6:e1d9da7fe856	636	}
bcostm	6:e1d9da7fe856	637
bcostm	6:e1d9da7fe856	638	/* Disable SAI peripheral */
bcostm	6:e1d9da7fe856	639	__HAL_SAI_DISABLE(hsai);
bcostm	6:e1d9da7fe856	640
bcostm	6:e1d9da7fe856	641	/* Deactives CODEC_SAI pins FS, SCK, MCK and SD by putting them in input mode */
bcostm	6:e1d9da7fe856	642	gpio_init_structure.Pin = AUDIO_OUT_SAIx_FS_PIN;
bcostm	6:e1d9da7fe856	643	HAL_GPIO_DeInit(AUDIO_OUT_SAIx_FS_GPIO_PORT, gpio_init_structure.Pin);
bcostm	6:e1d9da7fe856	644
bcostm	6:e1d9da7fe856	645	gpio_init_structure.Pin = AUDIO_OUT_SAIx_SCK_PIN;
bcostm	6:e1d9da7fe856	646	HAL_GPIO_DeInit(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, gpio_init_structure.Pin);
bcostm	6:e1d9da7fe856	647
bcostm	6:e1d9da7fe856	648	gpio_init_structure.Pin = AUDIO_OUT_SAIx_SD_PIN;
bcostm	6:e1d9da7fe856	649	HAL_GPIO_DeInit(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, gpio_init_structure.Pin);
bcostm	6:e1d9da7fe856	650
bcostm	6:e1d9da7fe856	651	gpio_init_structure.Pin = AUDIO_OUT_SAIx_MCLK_PIN;
bcostm	6:e1d9da7fe856	652	HAL_GPIO_DeInit(AUDIO_OUT_SAIx_MCLK_GPIO_PORT, gpio_init_structure.Pin);
bcostm	6:e1d9da7fe856	653
bcostm	6:e1d9da7fe856	654	/* Disable SAI clock */
bcostm	6:e1d9da7fe856	655	AUDIO_OUT_SAIx_CLK_DISABLE();
bcostm	6:e1d9da7fe856	656
bcostm	6:e1d9da7fe856	657	/* GPIO pins clock and DMA clock can be shut down in the application
bcostm	6:e1d9da7fe856	658	by surcharging this __weak function */
bcostm	6:e1d9da7fe856	659	}
bcostm	6:e1d9da7fe856	660
bcostm	6:e1d9da7fe856	661	/**
bcostm	6:e1d9da7fe856	662	* @brief Clock Config.
bcostm	6:e1d9da7fe856	663	* @param hsai: might be required to set audio peripheral predivider if any.
bcostm	6:e1d9da7fe856	664	* @param AudioFreq: Audio frequency used to play the audio stream.
bcostm	6:e1d9da7fe856	665	* @param Params
bcostm	6:e1d9da7fe856	666	* @note This API is called by BSP_AUDIO_OUT_Init() and BSP_AUDIO_OUT_SetFrequency()
bcostm	6:e1d9da7fe856	667	* Being __weak it can be overwritten by the application
bcostm	6:e1d9da7fe856	668	* @retval None
bcostm	6:e1d9da7fe856	669	*/
bcostm	6:e1d9da7fe856	670	__weak void BSP_AUDIO_OUT_ClockConfig(SAI_HandleTypeDef hsai, uint32_t AudioFreq, void Params)
bcostm	6:e1d9da7fe856	671	{
bcostm	6:e1d9da7fe856	672	RCC_PeriphCLKInitTypeDef rcc_ex_clk_init_struct;
bcostm	6:e1d9da7fe856	673
bcostm	6:e1d9da7fe856	674	HAL_RCCEx_GetPeriphCLKConfig(&rcc_ex_clk_init_struct);
bcostm	6:e1d9da7fe856	675
bcostm	6:e1d9da7fe856	676	/* Set the PLL configuration according to the audio frequency */
bcostm	6:e1d9da7fe856	677	if((AudioFreq == AUDIO_FREQUENCY_11K) \|\| (AudioFreq == AUDIO_FREQUENCY_22K) \|\| (AudioFreq == AUDIO_FREQUENCY_44K))
bcostm	6:e1d9da7fe856	678	{
bcostm	6:e1d9da7fe856	679	/* Configure PLLI2S prescalers */
bcostm	6:e1d9da7fe856	680	/* PLLI2S_VCO: VCO_429M
bcostm	6:e1d9da7fe856	681	I2S_CLK(first level) = PLLI2S_VCO/PLLI2SQ = 429/2 = 214.5 Mhz
bcostm	6:e1d9da7fe856	682	I2S_CLK_x = I2S_CLK(first level)/PLLI2SDIVQ = 214.5/19 = 11.289 Mhz */
bcostm	6:e1d9da7fe856	683	rcc_ex_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_SAI2;
bcostm	6:e1d9da7fe856	684	rcc_ex_clk_init_struct.Sai2ClockSelection = RCC_SAI2CLKSOURCE_PLLI2S;
bcostm	6:e1d9da7fe856	685	rcc_ex_clk_init_struct.PLLI2S.PLLI2SN = 429;
bcostm	6:e1d9da7fe856	686	rcc_ex_clk_init_struct.PLLI2S.PLLI2SQ = 2;
bcostm	6:e1d9da7fe856	687	rcc_ex_clk_init_struct.PLLI2SDivQ = 19;
bcostm	6:e1d9da7fe856	688
bcostm	6:e1d9da7fe856	689	HAL_RCCEx_PeriphCLKConfig(&rcc_ex_clk_init_struct);
bcostm	6:e1d9da7fe856	690
bcostm	6:e1d9da7fe856	691	}
bcostm	6:e1d9da7fe856	692	else /* AUDIO_FREQUENCY_8K, AUDIO_FREQUENCY_16K, AUDIO_FREQUENCY_48K), AUDIO_FREQUENCY_96K */
bcostm	6:e1d9da7fe856	693	{
bcostm	6:e1d9da7fe856	694	/* I2S clock config
bcostm	6:e1d9da7fe856	695	PLLI2S_VCO: VCO_344M
bcostm	6:e1d9da7fe856	696	I2S_CLK(first level) = PLLI2S_VCO/PLLI2SQ = 344/7 = 49.142 Mhz
bcostm	6:e1d9da7fe856	697	I2S_CLK_x = I2S_CLK(first level)/PLLI2SDIVQ = 49.142/1 = 49.142 Mhz */
bcostm	6:e1d9da7fe856	698	rcc_ex_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_SAI2;
bcostm	6:e1d9da7fe856	699	rcc_ex_clk_init_struct.Sai2ClockSelection = RCC_SAI2CLKSOURCE_PLLI2S;
bcostm	6:e1d9da7fe856	700	rcc_ex_clk_init_struct.PLLI2S.PLLI2SN = 344;
bcostm	6:e1d9da7fe856	701	rcc_ex_clk_init_struct.PLLI2S.PLLI2SQ = 7;
bcostm	6:e1d9da7fe856	702	rcc_ex_clk_init_struct.PLLI2SDivQ = 1;
bcostm	6:e1d9da7fe856	703
bcostm	6:e1d9da7fe856	704	HAL_RCCEx_PeriphCLKConfig(&rcc_ex_clk_init_struct);
bcostm	6:e1d9da7fe856	705	}
bcostm	6:e1d9da7fe856	706	}
bcostm	6:e1d9da7fe856	707
bcostm	6:e1d9da7fe856	708	/*******************************************************************************
bcostm	6:e1d9da7fe856	709	Static Functions
bcostm	6:e1d9da7fe856	710	*******************************************************************************/
bcostm	6:e1d9da7fe856	711
bcostm	6:e1d9da7fe856	712	/**
bcostm	6:e1d9da7fe856	713	* @brief Initializes the output Audio Codec audio interface (SAI).
bcostm	6:e1d9da7fe856	714	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
bcostm	6:e1d9da7fe856	715	* @note The default SlotActive configuration is set to CODEC_AUDIOFRAME_SLOT_0123
bcostm	6:e1d9da7fe856	716	* and user can update this configuration using
bcostm	6:e1d9da7fe856	717	* @retval None
bcostm	6:e1d9da7fe856	718	*/
bcostm	6:e1d9da7fe856	719	static void SAIx_Out_Init(uint32_t AudioFreq)
bcostm	6:e1d9da7fe856	720	{
bcostm	6:e1d9da7fe856	721	/* Initialize the haudio_out_sai Instance parameter */
bcostm	6:e1d9da7fe856	722	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
bcostm	6:e1d9da7fe856	723
bcostm	6:e1d9da7fe856	724	/* Disable SAI peripheral to allow access to SAI internal registers */
bcostm	6:e1d9da7fe856	725	__HAL_SAI_DISABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	726
bcostm	6:e1d9da7fe856	727	/* Configure SAI_Block_x
bcostm	6:e1d9da7fe856	728	LSBFirst: Disabled
bcostm	6:e1d9da7fe856	729	DataSize: 16 */
bcostm	6:e1d9da7fe856	730	haudio_out_sai.Init.AudioFrequency = AudioFreq;
bcostm	6:e1d9da7fe856	731	haudio_out_sai.Init.AudioMode = SAI_MODEMASTER_TX;
bcostm	6:e1d9da7fe856	732	haudio_out_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED;
bcostm	6:e1d9da7fe856	733	haudio_out_sai.Init.Protocol = SAI_FREE_PROTOCOL;
bcostm	6:e1d9da7fe856	734	haudio_out_sai.Init.DataSize = SAI_DATASIZE_16;
bcostm	6:e1d9da7fe856	735	haudio_out_sai.Init.FirstBit = SAI_FIRSTBIT_MSB;
bcostm	6:e1d9da7fe856	736	haudio_out_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE;
bcostm	6:e1d9da7fe856	737	haudio_out_sai.Init.Synchro = SAI_ASYNCHRONOUS;
bcostm	6:e1d9da7fe856	738	haudio_out_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLED;
bcostm	6:e1d9da7fe856	739	haudio_out_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF;
bcostm	6:e1d9da7fe856	740
bcostm	6:e1d9da7fe856	741	/* Configure SAI_Block_x Frame
bcostm	6:e1d9da7fe856	742	Frame Length: 64
bcostm	6:e1d9da7fe856	743	Frame active Length: 32
bcostm	6:e1d9da7fe856	744	FS Definition: Start frame + Channel Side identification
bcostm	6:e1d9da7fe856	745	FS Polarity: FS active Low
bcostm	6:e1d9da7fe856	746	FS Offset: FS asserted one bit before the first bit of slot 0 */
bcostm	6:e1d9da7fe856	747	haudio_out_sai.FrameInit.FrameLength = 64;
bcostm	6:e1d9da7fe856	748	haudio_out_sai.FrameInit.ActiveFrameLength = 32;
bcostm	6:e1d9da7fe856	749	haudio_out_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
bcostm	6:e1d9da7fe856	750	haudio_out_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
bcostm	6:e1d9da7fe856	751	haudio_out_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
bcostm	6:e1d9da7fe856	752
bcostm	6:e1d9da7fe856	753	/* Configure SAI Block_x Slot
bcostm	6:e1d9da7fe856	754	Slot First Bit Offset: 0
bcostm	6:e1d9da7fe856	755	Slot Size : 16
bcostm	6:e1d9da7fe856	756	Slot Number: 4
bcostm	6:e1d9da7fe856	757	Slot Active: All slot actives */
bcostm	6:e1d9da7fe856	758	haudio_out_sai.SlotInit.FirstBitOffset = 0;
bcostm	6:e1d9da7fe856	759	haudio_out_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE;
bcostm	6:e1d9da7fe856	760	haudio_out_sai.SlotInit.SlotNumber = 4;
bcostm	6:e1d9da7fe856	761	haudio_out_sai.SlotInit.SlotActive = CODEC_AUDIOFRAME_SLOT_0123;
bcostm	6:e1d9da7fe856	762
bcostm	6:e1d9da7fe856	763	HAL_SAI_Init(&haudio_out_sai);
bcostm	6:e1d9da7fe856	764
bcostm	6:e1d9da7fe856	765	/* Enable SAI peripheral to generate MCLK */
bcostm	6:e1d9da7fe856	766	__HAL_SAI_ENABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	767	}
bcostm	6:e1d9da7fe856	768
bcostm	6:e1d9da7fe856	769
bcostm	6:e1d9da7fe856	770
bcostm	6:e1d9da7fe856	771	/**
bcostm	6:e1d9da7fe856	772	* @brief Deinitializes the output Audio Codec audio interface (SAI).
bcostm	6:e1d9da7fe856	773	* @retval None
bcostm	6:e1d9da7fe856	774	*/
bcostm	6:e1d9da7fe856	775	static void SAIx_Out_DeInit(void)
bcostm	6:e1d9da7fe856	776	{
bcostm	6:e1d9da7fe856	777	/* Initialize the haudio_out_sai Instance parameter */
bcostm	6:e1d9da7fe856	778	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
bcostm	6:e1d9da7fe856	779
bcostm	6:e1d9da7fe856	780	/* Disable SAI peripheral */
bcostm	6:e1d9da7fe856	781	__HAL_SAI_DISABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	782
bcostm	6:e1d9da7fe856	783	HAL_SAI_DeInit(&haudio_out_sai);
bcostm	6:e1d9da7fe856	784	}
bcostm	6:e1d9da7fe856	785
bcostm	6:e1d9da7fe856	786	/**
bcostm	6:e1d9da7fe856	787	* @}
bcostm	6:e1d9da7fe856	788	*/
bcostm	6:e1d9da7fe856	789
bcostm	6:e1d9da7fe856	790	/** @defgroup STM32746G_DISCOVERY_AUDIO_Out_Private_Functions STM32746G_DISCOVERY_AUDIO Out Private Functions
bcostm	6:e1d9da7fe856	791	* @{
bcostm	6:e1d9da7fe856	792	*/
Jerome Coutant	8:56384bddaba5	793
Jerome Coutant	8:56384bddaba5	794	/**
Jerome Coutant	8:56384bddaba5	795	* @brief Initializes wave recording.
Jerome Coutant	8:56384bddaba5	796	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
Jerome Coutant	8:56384bddaba5	797	* @param BitRes: Audio frequency to be configured.
Jerome Coutant	8:56384bddaba5	798	* @param ChnlNbr: Channel number.
Jerome Coutant	8:56384bddaba5	799	* @retval AUDIO_OK if correct communication, else wrong communication
Jerome Coutant	8:56384bddaba5	800	*/
Jerome Coutant	8:56384bddaba5	801	uint8_t BSP_AUDIO_IN_Init(uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr)
Jerome Coutant	8:56384bddaba5	802	{
Jerome Coutant	8:56384bddaba5	803	return BSP_AUDIO_IN_InitEx(INPUT_DEVICE_DIGITAL_MICROPHONE_2, AudioFreq, BitRes, ChnlNbr);
Jerome Coutant	8:56384bddaba5	804	}
Jerome Coutant	8:56384bddaba5	805
bcostm	6:e1d9da7fe856	806	/**
bcostm	6:e1d9da7fe856	807	* @brief Initializes wave recording.
bcostm	6:e1d9da7fe856	808	* @param InputDevice: INPUT_DEVICE_DIGITAL_MICROPHONE_2 or INPUT_DEVICE_INPUT_LINE_1
bcostm	6:e1d9da7fe856	809	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
Jerome Coutant	8:56384bddaba5	810	* @param BitRes: Audio frequency to be configured.
Jerome Coutant	8:56384bddaba5	811	* @param ChnlNbr: Channel number.
bcostm	6:e1d9da7fe856	812	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	813	*/
Jerome Coutant	8:56384bddaba5	814	uint8_t BSP_AUDIO_IN_InitEx(uint16_t InputDevice, uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr)
bcostm	6:e1d9da7fe856	815	{
bcostm	6:e1d9da7fe856	816	uint8_t ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	817	uint32_t deviceid = 0x00;
bcostm	6:e1d9da7fe856	818	uint32_t slot_active;
bcostm	6:e1d9da7fe856	819
bcostm	6:e1d9da7fe856	820	if ((InputDevice != INPUT_DEVICE_INPUT_LINE_1) && /* Only INPUT_LINE_1 and MICROPHONE_2 inputs supported */
bcostm	6:e1d9da7fe856	821	(InputDevice != INPUT_DEVICE_DIGITAL_MICROPHONE_2))
bcostm	6:e1d9da7fe856	822	{
bcostm	6:e1d9da7fe856	823	ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	824	}
bcostm	6:e1d9da7fe856	825	else
bcostm	6:e1d9da7fe856	826	{
bcostm	6:e1d9da7fe856	827	/* Disable SAI */
bcostm	6:e1d9da7fe856	828	SAIx_In_DeInit();
bcostm	6:e1d9da7fe856	829
bcostm	6:e1d9da7fe856	830	/* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */
bcostm	6:e1d9da7fe856	831	BSP_AUDIO_OUT_ClockConfig(&haudio_in_sai, AudioFreq, NULL); /* Clock config is shared between AUDIO IN and OUT */
bcostm	6:e1d9da7fe856	832
bcostm	6:e1d9da7fe856	833	/* SAI data transfer preparation:
bcostm	6:e1d9da7fe856	834	Prepare the Media to be used for the audio transfer from SAI peripheral to memory */
bcostm	6:e1d9da7fe856	835	haudio_in_sai.Instance = AUDIO_IN_SAIx;
bcostm	6:e1d9da7fe856	836	if(HAL_SAI_GetState(&haudio_in_sai) == HAL_SAI_STATE_RESET)
bcostm	6:e1d9da7fe856	837	{
bcostm	6:e1d9da7fe856	838	/* Init the SAI MSP: this __weak function can be redefined by the application*/
bcostm	6:e1d9da7fe856	839	BSP_AUDIO_OUT_MspInit(&haudio_in_sai, NULL); /* Initialize GPIOs for SAI2 block A Master signals */
bcostm	6:e1d9da7fe856	840	BSP_AUDIO_IN_MspInit(&haudio_in_sai, NULL);
bcostm	6:e1d9da7fe856	841	}
bcostm	6:e1d9da7fe856	842
bcostm	6:e1d9da7fe856	843	/* Configure SAI in master RX mode :
bcostm	6:e1d9da7fe856	844	* - SAI2_block_A in master RX mode
bcostm	6:e1d9da7fe856	845	* - SAI2_block_B in slave RX mode synchronous from SAI2_block_A
bcostm	6:e1d9da7fe856	846	*/
bcostm	6:e1d9da7fe856	847	if (InputDevice == INPUT_DEVICE_DIGITAL_MICROPHONE_2)
bcostm	6:e1d9da7fe856	848	{
bcostm	6:e1d9da7fe856	849	slot_active = CODEC_AUDIOFRAME_SLOT_13;
bcostm	6:e1d9da7fe856	850	}
bcostm	6:e1d9da7fe856	851	else
bcostm	6:e1d9da7fe856	852	{
bcostm	6:e1d9da7fe856	853	slot_active = CODEC_AUDIOFRAME_SLOT_02;
bcostm	6:e1d9da7fe856	854	}
bcostm	6:e1d9da7fe856	855	SAIx_In_Init(SAI_MODEMASTER_RX, slot_active, AudioFreq);
bcostm	6:e1d9da7fe856	856
bcostm	6:e1d9da7fe856	857	/* wm8994 codec initialization */
bcostm	6:e1d9da7fe856	858	deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS);
bcostm	6:e1d9da7fe856	859
bcostm	6:e1d9da7fe856	860	if((deviceid) == WM8994_ID)
bcostm	6:e1d9da7fe856	861	{
bcostm	6:e1d9da7fe856	862	/* Reset the Codec Registers */
bcostm	6:e1d9da7fe856	863	wm8994_drv.Reset(AUDIO_I2C_ADDRESS);
bcostm	6:e1d9da7fe856	864	/* Initialize the audio driver structure */
bcostm	6:e1d9da7fe856	865	audio_drv = &wm8994_drv;
bcostm	6:e1d9da7fe856	866	ret = AUDIO_OK;
bcostm	6:e1d9da7fe856	867	}
bcostm	6:e1d9da7fe856	868	else
bcostm	6:e1d9da7fe856	869	{
bcostm	6:e1d9da7fe856	870	ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	871	}
bcostm	6:e1d9da7fe856	872
bcostm	6:e1d9da7fe856	873	if(ret == AUDIO_OK)
bcostm	6:e1d9da7fe856	874	{
bcostm	6:e1d9da7fe856	875	/* Initialize the codec internal registers */
Jerome Coutant	8:56384bddaba5	876	audio_drv->Init(AUDIO_I2C_ADDRESS, InputDevice, 100, AudioFreq);
bcostm	6:e1d9da7fe856	877	}
bcostm	6:e1d9da7fe856	878	}
bcostm	6:e1d9da7fe856	879	return ret;
bcostm	6:e1d9da7fe856	880	}
bcostm	6:e1d9da7fe856	881
bcostm	6:e1d9da7fe856	882	/**
bcostm	6:e1d9da7fe856	883	* @brief Initializes wave recording and playback in parallel.
bcostm	6:e1d9da7fe856	884	* @param InputDevice: INPUT_DEVICE_DIGITAL_MICROPHONE_2
bcostm	6:e1d9da7fe856	885	* @param OutputDevice: OUTPUT_DEVICE_SPEAKER, OUTPUT_DEVICE_HEADPHONE,
bcostm	6:e1d9da7fe856	886	* or OUTPUT_DEVICE_BOTH.
bcostm	6:e1d9da7fe856	887	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
Jerome Coutant	8:56384bddaba5	888	* @param BitRes: Audio frequency to be configured.
Jerome Coutant	8:56384bddaba5	889	* @param ChnlNbr: Channel number.
bcostm	6:e1d9da7fe856	890	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	891	*/
Jerome Coutant	8:56384bddaba5	892	uint8_t BSP_AUDIO_IN_OUT_Init(uint16_t InputDevice, uint16_t OutputDevice, uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr)
bcostm	6:e1d9da7fe856	893	{
bcostm	6:e1d9da7fe856	894	uint8_t ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	895	uint32_t deviceid = 0x00;
bcostm	6:e1d9da7fe856	896	uint32_t slot_active;
bcostm	6:e1d9da7fe856	897
bcostm	6:e1d9da7fe856	898	if (InputDevice != INPUT_DEVICE_DIGITAL_MICROPHONE_2) /* Only MICROPHONE_2 input supported */
bcostm	6:e1d9da7fe856	899	{
bcostm	6:e1d9da7fe856	900	ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	901	}
bcostm	6:e1d9da7fe856	902	else
bcostm	6:e1d9da7fe856	903	{
bcostm	6:e1d9da7fe856	904	/* Disable SAI */
bcostm	6:e1d9da7fe856	905	SAIx_In_DeInit();
bcostm	6:e1d9da7fe856	906	SAIx_Out_DeInit();
bcostm	6:e1d9da7fe856	907
bcostm	6:e1d9da7fe856	908	/* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */
bcostm	6:e1d9da7fe856	909	BSP_AUDIO_OUT_ClockConfig(&haudio_in_sai, AudioFreq, NULL); /* Clock config is shared between AUDIO IN and OUT */
bcostm	6:e1d9da7fe856	910
bcostm	6:e1d9da7fe856	911	/* SAI data transfer preparation:
bcostm	6:e1d9da7fe856	912	Prepare the Media to be used for the audio transfer from SAI peripheral to memory */
bcostm	6:e1d9da7fe856	913	haudio_in_sai.Instance = AUDIO_IN_SAIx;
bcostm	6:e1d9da7fe856	914	if(HAL_SAI_GetState(&haudio_in_sai) == HAL_SAI_STATE_RESET)
bcostm	6:e1d9da7fe856	915	{
bcostm	6:e1d9da7fe856	916	/* Init the SAI MSP: this __weak function can be redefined by the application*/
bcostm	6:e1d9da7fe856	917	BSP_AUDIO_IN_MspInit(&haudio_in_sai, NULL);
bcostm	6:e1d9da7fe856	918	}
bcostm	6:e1d9da7fe856	919
bcostm	6:e1d9da7fe856	920	/* SAI data transfer preparation:
bcostm	6:e1d9da7fe856	921	Prepare the Media to be used for the audio transfer from memory to SAI peripheral */
bcostm	6:e1d9da7fe856	922	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
bcostm	6:e1d9da7fe856	923	if(HAL_SAI_GetState(&haudio_out_sai) == HAL_SAI_STATE_RESET)
bcostm	6:e1d9da7fe856	924	{
bcostm	6:e1d9da7fe856	925	/* Init the SAI MSP: this __weak function can be redefined by the application*/
bcostm	6:e1d9da7fe856	926	BSP_AUDIO_OUT_MspInit(&haudio_out_sai, NULL);
bcostm	6:e1d9da7fe856	927	}
bcostm	6:e1d9da7fe856	928
bcostm	6:e1d9da7fe856	929	/* Configure SAI in master mode :
bcostm	6:e1d9da7fe856	930	* - SAI2_block_A in master TX mode
bcostm	6:e1d9da7fe856	931	* - SAI2_block_B in slave RX mode synchronous from SAI2_block_A
bcostm	6:e1d9da7fe856	932	*/
bcostm	6:e1d9da7fe856	933	if (InputDevice == INPUT_DEVICE_DIGITAL_MICROPHONE_2)
bcostm	6:e1d9da7fe856	934	{
bcostm	6:e1d9da7fe856	935	slot_active = CODEC_AUDIOFRAME_SLOT_13;
bcostm	6:e1d9da7fe856	936	}
bcostm	6:e1d9da7fe856	937	else
bcostm	6:e1d9da7fe856	938	{
bcostm	6:e1d9da7fe856	939	slot_active = CODEC_AUDIOFRAME_SLOT_02;
bcostm	6:e1d9da7fe856	940	}
bcostm	6:e1d9da7fe856	941	SAIx_In_Init(SAI_MODEMASTER_TX, slot_active, AudioFreq);
bcostm	6:e1d9da7fe856	942
bcostm	6:e1d9da7fe856	943	/* wm8994 codec initialization */
bcostm	6:e1d9da7fe856	944	deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS);
bcostm	6:e1d9da7fe856	945
bcostm	6:e1d9da7fe856	946	if((deviceid) == WM8994_ID)
bcostm	6:e1d9da7fe856	947	{
bcostm	6:e1d9da7fe856	948	/* Reset the Codec Registers */
bcostm	6:e1d9da7fe856	949	wm8994_drv.Reset(AUDIO_I2C_ADDRESS);
bcostm	6:e1d9da7fe856	950	/* Initialize the audio driver structure */
bcostm	6:e1d9da7fe856	951	audio_drv = &wm8994_drv;
bcostm	6:e1d9da7fe856	952	ret = AUDIO_OK;
bcostm	6:e1d9da7fe856	953	}
bcostm	6:e1d9da7fe856	954	else
bcostm	6:e1d9da7fe856	955	{
bcostm	6:e1d9da7fe856	956	ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	957	}
bcostm	6:e1d9da7fe856	958
bcostm	6:e1d9da7fe856	959	if(ret == AUDIO_OK)
bcostm	6:e1d9da7fe856	960	{
bcostm	6:e1d9da7fe856	961	/* Initialize the codec internal registers */
Jerome Coutant	8:56384bddaba5	962	audio_drv->Init(AUDIO_I2C_ADDRESS, InputDevice \| OutputDevice, 100, AudioFreq);
bcostm	6:e1d9da7fe856	963	}
bcostm	6:e1d9da7fe856	964	}
bcostm	6:e1d9da7fe856	965	return ret;
bcostm	6:e1d9da7fe856	966	}
bcostm	6:e1d9da7fe856	967
bcostm	6:e1d9da7fe856	968
bcostm	6:e1d9da7fe856	969	/**
bcostm	6:e1d9da7fe856	970	* @brief Starts audio recording.
bcostm	6:e1d9da7fe856	971	* @param pbuf: Main buffer pointer for the recorded data storing
bcostm	6:e1d9da7fe856	972	* @param size: size of the recorded buffer in number of elements (typically number of half-words)
bcostm	6:e1d9da7fe856	973	* Be careful that it is not the same unit than BSP_AUDIO_OUT_Play function
bcostm	6:e1d9da7fe856	974	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	975	*/
bcostm	6:e1d9da7fe856	976	uint8_t BSP_AUDIO_IN_Record(uint16_t* pbuf, uint32_t size)
bcostm	6:e1d9da7fe856	977	{
bcostm	6:e1d9da7fe856	978	uint32_t ret = AUDIO_ERROR;
bcostm	6:e1d9da7fe856	979
bcostm	6:e1d9da7fe856	980	/* Start the process receive DMA */
bcostm	6:e1d9da7fe856	981	HAL_SAI_Receive_DMA(&haudio_in_sai, (uint8_t*)pbuf, size);
bcostm	6:e1d9da7fe856	982
bcostm	6:e1d9da7fe856	983	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	984	ret = AUDIO_OK;
bcostm	6:e1d9da7fe856	985
bcostm	6:e1d9da7fe856	986	return ret;
bcostm	6:e1d9da7fe856	987	}
bcostm	6:e1d9da7fe856	988
bcostm	6:e1d9da7fe856	989	/**
bcostm	6:e1d9da7fe856	990	* @brief Stops audio recording.
bcostm	6:e1d9da7fe856	991	* @param Option: could be one of the following parameters
bcostm	6:e1d9da7fe856	992	* - CODEC_PDWN_SW: for software power off (by writing registers).
bcostm	6:e1d9da7fe856	993	* Then no need to reconfigure the Codec after power on.
bcostm	6:e1d9da7fe856	994	* - CODEC_PDWN_HW: completely shut down the codec (physically).
bcostm	6:e1d9da7fe856	995	* Then need to reconfigure the Codec after power on.
bcostm	6:e1d9da7fe856	996	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	997	*/
bcostm	6:e1d9da7fe856	998	uint8_t BSP_AUDIO_IN_Stop(uint32_t Option)
bcostm	6:e1d9da7fe856	999	{
bcostm	6:e1d9da7fe856	1000	/* Call the Media layer stop function */
bcostm	6:e1d9da7fe856	1001	HAL_SAI_DMAStop(&haudio_in_sai);
bcostm	6:e1d9da7fe856	1002
bcostm	6:e1d9da7fe856	1003	/* Call Audio Codec Stop function */
bcostm	6:e1d9da7fe856	1004	if(audio_drv->Stop(AUDIO_I2C_ADDRESS, Option) != 0)
bcostm	6:e1d9da7fe856	1005	{
bcostm	6:e1d9da7fe856	1006	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	1007	}
bcostm	6:e1d9da7fe856	1008	else
bcostm	6:e1d9da7fe856	1009	{
bcostm	6:e1d9da7fe856	1010	if(Option == CODEC_PDWN_HW)
bcostm	6:e1d9da7fe856	1011	{
bcostm	6:e1d9da7fe856	1012	/* Wait at least 100us */
bcostm	6:e1d9da7fe856	1013	HAL_Delay(1);
bcostm	6:e1d9da7fe856	1014	}
bcostm	6:e1d9da7fe856	1015	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	1016	return AUDIO_OK;
bcostm	6:e1d9da7fe856	1017	}
bcostm	6:e1d9da7fe856	1018	}
bcostm	6:e1d9da7fe856	1019
bcostm	6:e1d9da7fe856	1020	/**
bcostm	6:e1d9da7fe856	1021	* @brief Pauses the audio file stream.
bcostm	6:e1d9da7fe856	1022	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	1023	*/
bcostm	6:e1d9da7fe856	1024	uint8_t BSP_AUDIO_IN_Pause(void)
bcostm	6:e1d9da7fe856	1025	{
bcostm	6:e1d9da7fe856	1026	/* Call the Media layer pause function */
bcostm	6:e1d9da7fe856	1027	HAL_SAI_DMAPause(&haudio_in_sai);
bcostm	6:e1d9da7fe856	1028	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	1029	return AUDIO_OK;
bcostm	6:e1d9da7fe856	1030	}
bcostm	6:e1d9da7fe856	1031
bcostm	6:e1d9da7fe856	1032	/**
bcostm	6:e1d9da7fe856	1033	* @brief Resumes the audio file stream.
bcostm	6:e1d9da7fe856	1034	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	1035	*/
bcostm	6:e1d9da7fe856	1036	uint8_t BSP_AUDIO_IN_Resume(void)
bcostm	6:e1d9da7fe856	1037	{
bcostm	6:e1d9da7fe856	1038	/* Call the Media layer pause/resume function */
bcostm	6:e1d9da7fe856	1039	HAL_SAI_DMAResume(&haudio_in_sai);
bcostm	6:e1d9da7fe856	1040	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	1041	return AUDIO_OK;
bcostm	6:e1d9da7fe856	1042	}
bcostm	6:e1d9da7fe856	1043
bcostm	6:e1d9da7fe856	1044	/**
bcostm	6:e1d9da7fe856	1045	* @brief Controls the audio in volume level.
bcostm	6:e1d9da7fe856	1046	* @param Volume: Volume level in range 0(Mute)..80(+0dB)..100(+17.625dB)
bcostm	6:e1d9da7fe856	1047	* @retval AUDIO_OK if correct communication, else wrong communication
bcostm	6:e1d9da7fe856	1048	*/
bcostm	6:e1d9da7fe856	1049	uint8_t BSP_AUDIO_IN_SetVolume(uint8_t Volume)
bcostm	6:e1d9da7fe856	1050	{
bcostm	6:e1d9da7fe856	1051	/* Call the codec volume control function with converted volume value */
bcostm	6:e1d9da7fe856	1052	if(audio_drv->SetVolume(AUDIO_I2C_ADDRESS, Volume) != 0)
bcostm	6:e1d9da7fe856	1053	{
bcostm	6:e1d9da7fe856	1054	return AUDIO_ERROR;
bcostm	6:e1d9da7fe856	1055	}
bcostm	6:e1d9da7fe856	1056	else
bcostm	6:e1d9da7fe856	1057	{
bcostm	6:e1d9da7fe856	1058	/* Set the Global variable AudioInVolume */
bcostm	6:e1d9da7fe856	1059	AudioInVolume = Volume;
bcostm	6:e1d9da7fe856	1060	/* Return AUDIO_OK when all operations are correctly done */
bcostm	6:e1d9da7fe856	1061	return AUDIO_OK;
bcostm	6:e1d9da7fe856	1062	}
bcostm	6:e1d9da7fe856	1063	}
bcostm	6:e1d9da7fe856	1064
bcostm	6:e1d9da7fe856	1065	/**
bcostm	6:e1d9da7fe856	1066	* @brief Deinit the audio IN peripherals.
bcostm	6:e1d9da7fe856	1067	* @retval None
bcostm	6:e1d9da7fe856	1068	*/
bcostm	6:e1d9da7fe856	1069	void BSP_AUDIO_IN_DeInit(void)
bcostm	6:e1d9da7fe856	1070	{
bcostm	6:e1d9da7fe856	1071	SAIx_In_DeInit();
bcostm	6:e1d9da7fe856	1072	/* DeInit the SAI MSP : this __weak function can be rewritten by the application */
bcostm	6:e1d9da7fe856	1073	BSP_AUDIO_IN_MspDeInit(&haudio_in_sai, NULL);
bcostm	6:e1d9da7fe856	1074	}
bcostm	6:e1d9da7fe856	1075
bcostm	6:e1d9da7fe856	1076	/**
bcostm	6:e1d9da7fe856	1077	* @brief Rx Transfer completed callbacks.
bcostm	6:e1d9da7fe856	1078	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	1079	* @retval None
bcostm	6:e1d9da7fe856	1080	*/
bcostm	6:e1d9da7fe856	1081	void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hsai)
bcostm	6:e1d9da7fe856	1082	{
bcostm	6:e1d9da7fe856	1083	/* Call the record update function to get the next buffer to fill and its size (size is ignored) */
bcostm	6:e1d9da7fe856	1084	BSP_AUDIO_IN_TransferComplete_CallBack();
bcostm	6:e1d9da7fe856	1085	}
bcostm	6:e1d9da7fe856	1086
bcostm	6:e1d9da7fe856	1087	/**
bcostm	6:e1d9da7fe856	1088	* @brief Rx Half Transfer completed callbacks.
bcostm	6:e1d9da7fe856	1089	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	1090	* @retval None
bcostm	6:e1d9da7fe856	1091	*/
bcostm	6:e1d9da7fe856	1092	void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hsai)
bcostm	6:e1d9da7fe856	1093	{
bcostm	6:e1d9da7fe856	1094	/* Manage the remaining file size and new address offset: This function
bcostm	6:e1d9da7fe856	1095	should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */
bcostm	6:e1d9da7fe856	1096	BSP_AUDIO_IN_HalfTransfer_CallBack();
bcostm	6:e1d9da7fe856	1097	}
bcostm	6:e1d9da7fe856	1098
bcostm	6:e1d9da7fe856	1099	/**
bcostm	6:e1d9da7fe856	1100	* @brief User callback when record buffer is filled.
bcostm	6:e1d9da7fe856	1101	* @retval None
bcostm	6:e1d9da7fe856	1102	*/
bcostm	6:e1d9da7fe856	1103	__weak void BSP_AUDIO_IN_TransferComplete_CallBack(void)
bcostm	6:e1d9da7fe856	1104	{
bcostm	6:e1d9da7fe856	1105	/* This function should be implemented by the user application.
bcostm	6:e1d9da7fe856	1106	It is called into this driver when the current buffer is filled
bcostm	6:e1d9da7fe856	1107	to prepare the next buffer pointer and its size. */
bcostm	6:e1d9da7fe856	1108	}
bcostm	6:e1d9da7fe856	1109
bcostm	6:e1d9da7fe856	1110	/**
bcostm	6:e1d9da7fe856	1111	* @brief Manages the DMA Half Transfer complete event.
bcostm	6:e1d9da7fe856	1112	* @retval None
bcostm	6:e1d9da7fe856	1113	*/
bcostm	6:e1d9da7fe856	1114	__weak void BSP_AUDIO_IN_HalfTransfer_CallBack(void)
bcostm	6:e1d9da7fe856	1115	{
bcostm	6:e1d9da7fe856	1116	/* This function should be implemented by the user application.
bcostm	6:e1d9da7fe856	1117	It is called into this driver when the current buffer is filled
bcostm	6:e1d9da7fe856	1118	to prepare the next buffer pointer and its size. */
bcostm	6:e1d9da7fe856	1119	}
bcostm	6:e1d9da7fe856	1120
bcostm	6:e1d9da7fe856	1121	/**
bcostm	6:e1d9da7fe856	1122	* @brief Audio IN Error callback function.
bcostm	6:e1d9da7fe856	1123	* @retval None
bcostm	6:e1d9da7fe856	1124	*/
bcostm	6:e1d9da7fe856	1125	__weak void BSP_AUDIO_IN_Error_CallBack(void)
bcostm	6:e1d9da7fe856	1126	{
bcostm	6:e1d9da7fe856	1127	/* This function is called when an Interrupt due to transfer error on or peripheral
bcostm	6:e1d9da7fe856	1128	error occurs. */
bcostm	6:e1d9da7fe856	1129	}
bcostm	6:e1d9da7fe856	1130
bcostm	6:e1d9da7fe856	1131	/**
bcostm	6:e1d9da7fe856	1132	* @brief Initializes BSP_AUDIO_IN MSP.
bcostm	6:e1d9da7fe856	1133	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	1134	* @param Params
bcostm	6:e1d9da7fe856	1135	* @retval None
bcostm	6:e1d9da7fe856	1136	*/
bcostm	6:e1d9da7fe856	1137	__weak void BSP_AUDIO_IN_MspInit(SAI_HandleTypeDef hsai, void Params)
bcostm	6:e1d9da7fe856	1138	{
bcostm	6:e1d9da7fe856	1139	static DMA_HandleTypeDef hdma_sai_rx;
bcostm	6:e1d9da7fe856	1140	GPIO_InitTypeDef gpio_init_structure;
bcostm	6:e1d9da7fe856	1141
bcostm	6:e1d9da7fe856	1142	/* Enable SAI clock */
bcostm	6:e1d9da7fe856	1143	AUDIO_IN_SAIx_CLK_ENABLE();
bcostm	6:e1d9da7fe856	1144
bcostm	6:e1d9da7fe856	1145	/* Enable SD GPIO clock */
bcostm	6:e1d9da7fe856	1146	AUDIO_IN_SAIx_SD_ENABLE();
bcostm	6:e1d9da7fe856	1147	/* CODEC_SAI pin configuration: SD pin */
bcostm	6:e1d9da7fe856	1148	gpio_init_structure.Pin = AUDIO_IN_SAIx_SD_PIN;
bcostm	6:e1d9da7fe856	1149	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
bcostm	6:e1d9da7fe856	1150	gpio_init_structure.Pull = GPIO_NOPULL;
bcostm	6:e1d9da7fe856	1151	gpio_init_structure.Speed = GPIO_SPEED_FAST;
bcostm	6:e1d9da7fe856	1152	gpio_init_structure.Alternate = AUDIO_IN_SAIx_SD_AF;
bcostm	6:e1d9da7fe856	1153	HAL_GPIO_Init(AUDIO_IN_SAIx_SD_GPIO_PORT, &gpio_init_structure);
bcostm	6:e1d9da7fe856	1154
bcostm	6:e1d9da7fe856	1155	/* Enable Audio INT GPIO clock */
bcostm	6:e1d9da7fe856	1156	AUDIO_IN_INT_GPIO_ENABLE();
bcostm	6:e1d9da7fe856	1157	/* Audio INT pin configuration: input */
bcostm	6:e1d9da7fe856	1158	gpio_init_structure.Pin = AUDIO_IN_INT_GPIO_PIN;
bcostm	6:e1d9da7fe856	1159	gpio_init_structure.Mode = GPIO_MODE_INPUT;
bcostm	6:e1d9da7fe856	1160	gpio_init_structure.Pull = GPIO_NOPULL;
bcostm	6:e1d9da7fe856	1161	gpio_init_structure.Speed = GPIO_SPEED_FAST;
bcostm	6:e1d9da7fe856	1162	HAL_GPIO_Init(AUDIO_IN_INT_GPIO_PORT, &gpio_init_structure);
bcostm	6:e1d9da7fe856	1163
bcostm	6:e1d9da7fe856	1164	/* Enable the DMA clock */
bcostm	6:e1d9da7fe856	1165	AUDIO_IN_SAIx_DMAx_CLK_ENABLE();
bcostm	6:e1d9da7fe856	1166
bcostm	6:e1d9da7fe856	1167	if(hsai->Instance == AUDIO_IN_SAIx)
bcostm	6:e1d9da7fe856	1168	{
bcostm	6:e1d9da7fe856	1169	/* Configure the hdma_sai_rx handle parameters */
bcostm	6:e1d9da7fe856	1170	hdma_sai_rx.Init.Channel = AUDIO_IN_SAIx_DMAx_CHANNEL;
bcostm	6:e1d9da7fe856	1171	hdma_sai_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
bcostm	6:e1d9da7fe856	1172	hdma_sai_rx.Init.PeriphInc = DMA_PINC_DISABLE;
bcostm	6:e1d9da7fe856	1173	hdma_sai_rx.Init.MemInc = DMA_MINC_ENABLE;
bcostm	6:e1d9da7fe856	1174	hdma_sai_rx.Init.PeriphDataAlignment = AUDIO_IN_SAIx_DMAx_PERIPH_DATA_SIZE;
bcostm	6:e1d9da7fe856	1175	hdma_sai_rx.Init.MemDataAlignment = AUDIO_IN_SAIx_DMAx_MEM_DATA_SIZE;
bcostm	6:e1d9da7fe856	1176	hdma_sai_rx.Init.Mode = DMA_CIRCULAR;
bcostm	6:e1d9da7fe856	1177	hdma_sai_rx.Init.Priority = DMA_PRIORITY_HIGH;
bcostm	6:e1d9da7fe856	1178	hdma_sai_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
bcostm	6:e1d9da7fe856	1179	hdma_sai_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
bcostm	6:e1d9da7fe856	1180	hdma_sai_rx.Init.MemBurst = DMA_MBURST_SINGLE;
bcostm	6:e1d9da7fe856	1181	hdma_sai_rx.Init.PeriphBurst = DMA_MBURST_SINGLE;
bcostm	6:e1d9da7fe856	1182
bcostm	6:e1d9da7fe856	1183	hdma_sai_rx.Instance = AUDIO_IN_SAIx_DMAx_STREAM;
bcostm	6:e1d9da7fe856	1184
bcostm	6:e1d9da7fe856	1185	/* Associate the DMA handle */
bcostm	6:e1d9da7fe856	1186	__HAL_LINKDMA(hsai, hdmarx, hdma_sai_rx);
bcostm	6:e1d9da7fe856	1187
bcostm	6:e1d9da7fe856	1188	/* Deinitialize the Stream for new transfer */
bcostm	6:e1d9da7fe856	1189	HAL_DMA_DeInit(&hdma_sai_rx);
bcostm	6:e1d9da7fe856	1190
bcostm	6:e1d9da7fe856	1191	/* Configure the DMA Stream */
bcostm	6:e1d9da7fe856	1192	HAL_DMA_Init(&hdma_sai_rx);
bcostm	6:e1d9da7fe856	1193	}
bcostm	6:e1d9da7fe856	1194
bcostm	6:e1d9da7fe856	1195	/* SAI DMA IRQ Channel configuration */
bcostm	6:e1d9da7fe856	1196	#if ( __MBED__ == 1)
bcostm	6:e1d9da7fe856	1197	IRQn_Type irqn = (IRQn_Type)(AUDIO_IN_SAIx_DMAx_IRQ);
bcostm	6:e1d9da7fe856	1198	NVIC_ClearPendingIRQ(irqn);
bcostm	6:e1d9da7fe856	1199	NVIC_DisableIRQ(irqn);
bcostm	6:e1d9da7fe856	1200	NVIC_SetPriority(irqn, AUDIO_IN_IRQ_PREPRIO);
bcostm	6:e1d9da7fe856	1201	NVIC_SetVector(irqn, (uint32_t)AUDIO_IN_SAIx_DMAx_IRQHandler);
bcostm	6:e1d9da7fe856	1202	NVIC_EnableIRQ(irqn);
bcostm	6:e1d9da7fe856	1203	#else
bcostm	6:e1d9da7fe856	1204	HAL_NVIC_SetPriority(AUDIO_IN_SAIx_DMAx_IRQ, AUDIO_IN_IRQ_PREPRIO, 0);
bcostm	6:e1d9da7fe856	1205	HAL_NVIC_EnableIRQ(AUDIO_IN_SAIx_DMAx_IRQ);
bcostm	6:e1d9da7fe856	1206	#endif
bcostm	6:e1d9da7fe856	1207
bcostm	6:e1d9da7fe856	1208	/* Audio INT IRQ Channel configuration */
bcostm	6:e1d9da7fe856	1209	#if ( __MBED__ == 1)
bcostm	6:e1d9da7fe856	1210	irqn = (IRQn_Type)(AUDIO_IN_INT_IRQ);
bcostm	6:e1d9da7fe856	1211	NVIC_ClearPendingIRQ(irqn);
bcostm	6:e1d9da7fe856	1212	NVIC_DisableIRQ(irqn);
bcostm	6:e1d9da7fe856	1213	NVIC_SetPriority(irqn, AUDIO_IN_IRQ_PREPRIO);
bcostm	6:e1d9da7fe856	1214	NVIC_SetVector(irqn, (uint32_t)AUDIO_IN_INT_IRQHandler);
bcostm	6:e1d9da7fe856	1215	NVIC_EnableIRQ(irqn);
bcostm	6:e1d9da7fe856	1216	#else
bcostm	6:e1d9da7fe856	1217	HAL_NVIC_SetPriority(AUDIO_IN_INT_IRQ, AUDIO_IN_IRQ_PREPRIO, 0);
bcostm	6:e1d9da7fe856	1218	HAL_NVIC_EnableIRQ(AUDIO_IN_INT_IRQ);
bcostm	6:e1d9da7fe856	1219	#endif
bcostm	6:e1d9da7fe856	1220	}
bcostm	6:e1d9da7fe856	1221
bcostm	6:e1d9da7fe856	1222	/**
bcostm	6:e1d9da7fe856	1223	* @brief DeInitializes BSP_AUDIO_IN MSP.
bcostm	6:e1d9da7fe856	1224	* @param hsai: SAI handle
bcostm	6:e1d9da7fe856	1225	* @param Params
bcostm	6:e1d9da7fe856	1226	* @retval None
bcostm	6:e1d9da7fe856	1227	*/
bcostm	6:e1d9da7fe856	1228	__weak void BSP_AUDIO_IN_MspDeInit(SAI_HandleTypeDef hsai, void Params)
bcostm	6:e1d9da7fe856	1229	{
bcostm	6:e1d9da7fe856	1230	GPIO_InitTypeDef gpio_init_structure;
bcostm	6:e1d9da7fe856	1231
bcostm	6:e1d9da7fe856	1232	static DMA_HandleTypeDef hdma_sai_rx;
bcostm	6:e1d9da7fe856	1233
bcostm	6:e1d9da7fe856	1234	/* SAI IN DMA IRQ Channel deactivation */
bcostm	6:e1d9da7fe856	1235	HAL_NVIC_DisableIRQ(AUDIO_IN_SAIx_DMAx_IRQ);
bcostm	6:e1d9da7fe856	1236
bcostm	6:e1d9da7fe856	1237	if(hsai->Instance == AUDIO_IN_SAIx)
bcostm	6:e1d9da7fe856	1238	{
bcostm	6:e1d9da7fe856	1239	/* Deinitialize the Stream for new transfer */
bcostm	6:e1d9da7fe856	1240	HAL_DMA_DeInit(&hdma_sai_rx);
bcostm	6:e1d9da7fe856	1241	}
bcostm	6:e1d9da7fe856	1242
bcostm	6:e1d9da7fe856	1243	/* Disable SAI block */
bcostm	6:e1d9da7fe856	1244	__HAL_SAI_DISABLE(hsai);
bcostm	6:e1d9da7fe856	1245
bcostm	6:e1d9da7fe856	1246	/* Disable pin: SD pin */
bcostm	6:e1d9da7fe856	1247	gpio_init_structure.Pin = AUDIO_IN_SAIx_SD_PIN;
bcostm	6:e1d9da7fe856	1248	HAL_GPIO_DeInit(AUDIO_IN_SAIx_SD_GPIO_PORT, gpio_init_structure.Pin);
bcostm	6:e1d9da7fe856	1249
bcostm	6:e1d9da7fe856	1250	/* Disable SAI clock */
bcostm	6:e1d9da7fe856	1251	AUDIO_IN_SAIx_CLK_DISABLE();
bcostm	6:e1d9da7fe856	1252
bcostm	6:e1d9da7fe856	1253	/* GPIO pins clock and DMA clock can be shut down in the application
bcostm	6:e1d9da7fe856	1254	by surcharging this __weak function */
bcostm	6:e1d9da7fe856	1255	}
bcostm	6:e1d9da7fe856	1256
bcostm	6:e1d9da7fe856	1257
bcostm	6:e1d9da7fe856	1258	/*******************************************************************************
bcostm	6:e1d9da7fe856	1259	Static Functions
bcostm	6:e1d9da7fe856	1260	*******************************************************************************/
bcostm	6:e1d9da7fe856	1261
bcostm	6:e1d9da7fe856	1262	/**
bcostm	6:e1d9da7fe856	1263	* @brief Initializes the input Audio Codec audio interface (SAI).
bcostm	6:e1d9da7fe856	1264	* @param SaiOutMode: SAI_MODEMASTER_TX (for record and playback in parallel)
bcostm	6:e1d9da7fe856	1265	* or SAI_MODEMASTER_RX (for record only).
bcostm	6:e1d9da7fe856	1266	* @param SlotActive: CODEC_AUDIOFRAME_SLOT_02 or CODEC_AUDIOFRAME_SLOT_13
bcostm	6:e1d9da7fe856	1267	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
bcostm	6:e1d9da7fe856	1268	* @retval None
bcostm	6:e1d9da7fe856	1269	*/
bcostm	6:e1d9da7fe856	1270	static void SAIx_In_Init(uint32_t SaiOutMode, uint32_t SlotActive, uint32_t AudioFreq)
bcostm	6:e1d9da7fe856	1271	{
bcostm	6:e1d9da7fe856	1272	/* Initialize SAI2 block A in MASTER RX */
bcostm	6:e1d9da7fe856	1273	/* Initialize the haudio_out_sai Instance parameter */
bcostm	6:e1d9da7fe856	1274	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
bcostm	6:e1d9da7fe856	1275
bcostm	6:e1d9da7fe856	1276	/* Disable SAI peripheral to allow access to SAI internal registers */
bcostm	6:e1d9da7fe856	1277	__HAL_SAI_DISABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	1278
bcostm	6:e1d9da7fe856	1279	/* Configure SAI_Block_x
bcostm	6:e1d9da7fe856	1280	LSBFirst: Disabled
bcostm	6:e1d9da7fe856	1281	DataSize: 16 */
bcostm	6:e1d9da7fe856	1282	haudio_out_sai.Init.AudioFrequency = AudioFreq;
bcostm	6:e1d9da7fe856	1283	haudio_out_sai.Init.AudioMode = SaiOutMode;
bcostm	6:e1d9da7fe856	1284	haudio_out_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED;
bcostm	6:e1d9da7fe856	1285	haudio_out_sai.Init.Protocol = SAI_FREE_PROTOCOL;
bcostm	6:e1d9da7fe856	1286	haudio_out_sai.Init.DataSize = SAI_DATASIZE_16;
bcostm	6:e1d9da7fe856	1287	haudio_out_sai.Init.FirstBit = SAI_FIRSTBIT_MSB;
bcostm	6:e1d9da7fe856	1288	haudio_out_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE;
bcostm	6:e1d9da7fe856	1289	haudio_out_sai.Init.Synchro = SAI_ASYNCHRONOUS;
bcostm	6:e1d9da7fe856	1290	haudio_out_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLED;
bcostm	6:e1d9da7fe856	1291	haudio_out_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF;
bcostm	6:e1d9da7fe856	1292
bcostm	6:e1d9da7fe856	1293	/* Configure SAI_Block_x Frame
bcostm	6:e1d9da7fe856	1294	Frame Length: 64
bcostm	6:e1d9da7fe856	1295	Frame active Length: 32
bcostm	6:e1d9da7fe856	1296	FS Definition: Start frame + Channel Side identification
bcostm	6:e1d9da7fe856	1297	FS Polarity: FS active Low
bcostm	6:e1d9da7fe856	1298	FS Offset: FS asserted one bit before the first bit of slot 0 */
bcostm	6:e1d9da7fe856	1299	haudio_out_sai.FrameInit.FrameLength = 64;
bcostm	6:e1d9da7fe856	1300	haudio_out_sai.FrameInit.ActiveFrameLength = 32;
bcostm	6:e1d9da7fe856	1301	haudio_out_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
bcostm	6:e1d9da7fe856	1302	haudio_out_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
bcostm	6:e1d9da7fe856	1303	haudio_out_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
bcostm	6:e1d9da7fe856	1304
bcostm	6:e1d9da7fe856	1305	/* Configure SAI Block_x Slot
bcostm	6:e1d9da7fe856	1306	Slot First Bit Offset: 0
bcostm	6:e1d9da7fe856	1307	Slot Size : 16
bcostm	6:e1d9da7fe856	1308	Slot Number: 4
bcostm	6:e1d9da7fe856	1309	Slot Active: All slot actives */
bcostm	6:e1d9da7fe856	1310	haudio_out_sai.SlotInit.FirstBitOffset = 0;
bcostm	6:e1d9da7fe856	1311	haudio_out_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE;
bcostm	6:e1d9da7fe856	1312	haudio_out_sai.SlotInit.SlotNumber = 4;
bcostm	6:e1d9da7fe856	1313	haudio_out_sai.SlotInit.SlotActive = SlotActive;
bcostm	6:e1d9da7fe856	1314
bcostm	6:e1d9da7fe856	1315	HAL_SAI_Init(&haudio_out_sai);
bcostm	6:e1d9da7fe856	1316
bcostm	6:e1d9da7fe856	1317	/* Initialize SAI2 block B in SLAVE RX synchronous from SAI2 block A */
bcostm	6:e1d9da7fe856	1318	/* Initialize the haudio_in_sai Instance parameter */
bcostm	6:e1d9da7fe856	1319	haudio_in_sai.Instance = AUDIO_IN_SAIx;
bcostm	6:e1d9da7fe856	1320
bcostm	6:e1d9da7fe856	1321	/* Disable SAI peripheral to allow access to SAI internal registers */
bcostm	6:e1d9da7fe856	1322	__HAL_SAI_DISABLE(&haudio_in_sai);
bcostm	6:e1d9da7fe856	1323
bcostm	6:e1d9da7fe856	1324	/* Configure SAI_Block_x
bcostm	6:e1d9da7fe856	1325	LSBFirst: Disabled
bcostm	6:e1d9da7fe856	1326	DataSize: 16 */
bcostm	6:e1d9da7fe856	1327	haudio_in_sai.Init.AudioFrequency = AudioFreq;
bcostm	6:e1d9da7fe856	1328	haudio_in_sai.Init.AudioMode = SAI_MODESLAVE_RX;
bcostm	6:e1d9da7fe856	1329	haudio_in_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED;
bcostm	6:e1d9da7fe856	1330	haudio_in_sai.Init.Protocol = SAI_FREE_PROTOCOL;
bcostm	6:e1d9da7fe856	1331	haudio_in_sai.Init.DataSize = SAI_DATASIZE_16;
bcostm	6:e1d9da7fe856	1332	haudio_in_sai.Init.FirstBit = SAI_FIRSTBIT_MSB;
bcostm	6:e1d9da7fe856	1333	haudio_in_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE;
bcostm	6:e1d9da7fe856	1334	haudio_in_sai.Init.Synchro = SAI_SYNCHRONOUS;
bcostm	6:e1d9da7fe856	1335	haudio_in_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_DISABLED;
bcostm	6:e1d9da7fe856	1336	haudio_in_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF;
bcostm	6:e1d9da7fe856	1337
bcostm	6:e1d9da7fe856	1338	/* Configure SAI_Block_x Frame
bcostm	6:e1d9da7fe856	1339	Frame Length: 64
bcostm	6:e1d9da7fe856	1340	Frame active Length: 32
bcostm	6:e1d9da7fe856	1341	FS Definition: Start frame + Channel Side identification
bcostm	6:e1d9da7fe856	1342	FS Polarity: FS active Low
bcostm	6:e1d9da7fe856	1343	FS Offset: FS asserted one bit before the first bit of slot 0 */
bcostm	6:e1d9da7fe856	1344	haudio_in_sai.FrameInit.FrameLength = 64;
bcostm	6:e1d9da7fe856	1345	haudio_in_sai.FrameInit.ActiveFrameLength = 32;
bcostm	6:e1d9da7fe856	1346	haudio_in_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
bcostm	6:e1d9da7fe856	1347	haudio_in_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
bcostm	6:e1d9da7fe856	1348	haudio_in_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
bcostm	6:e1d9da7fe856	1349
bcostm	6:e1d9da7fe856	1350	/* Configure SAI Block_x Slot
bcostm	6:e1d9da7fe856	1351	Slot First Bit Offset: 0
bcostm	6:e1d9da7fe856	1352	Slot Size : 16
bcostm	6:e1d9da7fe856	1353	Slot Number: 4
bcostm	6:e1d9da7fe856	1354	Slot Active: All slot active */
bcostm	6:e1d9da7fe856	1355	haudio_in_sai.SlotInit.FirstBitOffset = 0;
bcostm	6:e1d9da7fe856	1356	haudio_in_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE;
bcostm	6:e1d9da7fe856	1357	haudio_in_sai.SlotInit.SlotNumber = 4;
bcostm	6:e1d9da7fe856	1358	haudio_in_sai.SlotInit.SlotActive = SlotActive;
bcostm	6:e1d9da7fe856	1359
bcostm	6:e1d9da7fe856	1360	HAL_SAI_Init(&haudio_in_sai);
bcostm	6:e1d9da7fe856	1361
bcostm	6:e1d9da7fe856	1362	/* Enable SAI peripheral to generate MCLK */
bcostm	6:e1d9da7fe856	1363	__HAL_SAI_ENABLE(&haudio_out_sai);
bcostm	6:e1d9da7fe856	1364
bcostm	6:e1d9da7fe856	1365	/* Enable SAI peripheral */
bcostm	6:e1d9da7fe856	1366	__HAL_SAI_ENABLE(&haudio_in_sai);
bcostm	6:e1d9da7fe856	1367	}
bcostm	6:e1d9da7fe856	1368
bcostm	6:e1d9da7fe856	1369
bcostm	6:e1d9da7fe856	1370
bcostm	6:e1d9da7fe856	1371	/**
bcostm	6:e1d9da7fe856	1372	* @brief Deinitializes the output Audio Codec audio interface (SAI).
bcostm	6:e1d9da7fe856	1373	* @retval None
bcostm	6:e1d9da7fe856	1374	*/
bcostm	6:e1d9da7fe856	1375	static void SAIx_In_DeInit(void)
bcostm	6:e1d9da7fe856	1376	{
bcostm	6:e1d9da7fe856	1377	/* Initialize the haudio_in_sai Instance parameter */
bcostm	6:e1d9da7fe856	1378	haudio_in_sai.Instance = AUDIO_IN_SAIx;
bcostm	6:e1d9da7fe856	1379
bcostm	6:e1d9da7fe856	1380	/* Disable SAI peripheral */
bcostm	6:e1d9da7fe856	1381	__HAL_SAI_DISABLE(&haudio_in_sai);
bcostm	6:e1d9da7fe856	1382
bcostm	6:e1d9da7fe856	1383	HAL_SAI_DeInit(&haudio_in_sai);
bcostm	6:e1d9da7fe856	1384	}
bcostm	6:e1d9da7fe856	1385
bcostm	6:e1d9da7fe856	1386	#if ( __MBED__ == 1)
bcostm	6:e1d9da7fe856	1387	/**
bcostm	6:e1d9da7fe856	1388	* @brief This function handles External line 15_10 interrupt request.
bcostm	6:e1d9da7fe856	1389	* @param None
bcostm	6:e1d9da7fe856	1390	* @retval None
bcostm	6:e1d9da7fe856	1391	*/
bcostm	6:e1d9da7fe856	1392	static void AUDIO_IN_INT_IRQHandler(void)
bcostm	6:e1d9da7fe856	1393	{
bcostm	6:e1d9da7fe856	1394	/* Interrupt handler shared between SD_DETECT pin, USER_KEY button and touch screen interrupt */
bcostm	6:e1d9da7fe856	1395	if (__HAL_GPIO_EXTI_GET_IT(AUDIO_IN_INT_GPIO_PIN) != RESET)
bcostm	6:e1d9da7fe856	1396	{
bcostm	6:e1d9da7fe856	1397	HAL_GPIO_EXTI_IRQHandler(AUDIO_IN_INT_GPIO_PIN); /* Audio Interrupt */
bcostm	6:e1d9da7fe856	1398	}
bcostm	6:e1d9da7fe856	1399	}
bcostm	6:e1d9da7fe856	1400
bcostm	6:e1d9da7fe856	1401	/**
bcostm	6:e1d9da7fe856	1402	* @brief This function handles DMA2 Stream 7 interrupt request.
bcostm	6:e1d9da7fe856	1403	* @param None
bcostm	6:e1d9da7fe856	1404	* @retval None
bcostm	6:e1d9da7fe856	1405	*/
bcostm	6:e1d9da7fe856	1406	static void AUDIO_IN_SAIx_DMAx_IRQHandler(void)
bcostm	6:e1d9da7fe856	1407	{
bcostm	6:e1d9da7fe856	1408	HAL_DMA_IRQHandler(haudio_in_sai.hdmarx);
bcostm	6:e1d9da7fe856	1409	}
bcostm	6:e1d9da7fe856	1410
bcostm	6:e1d9da7fe856	1411	/**
bcostm	6:e1d9da7fe856	1412	* @brief This function handles DMA2 Stream 6 interrupt request.
bcostm	6:e1d9da7fe856	1413	* @param None
bcostm	6:e1d9da7fe856	1414	* @retval None
bcostm	6:e1d9da7fe856	1415	*/
bcostm	6:e1d9da7fe856	1416	static void AUDIO_OUT_SAIx_DMAx_IRQHandler(void)
bcostm	6:e1d9da7fe856	1417	{
bcostm	6:e1d9da7fe856	1418	HAL_DMA_IRQHandler(haudio_out_sai.hdmatx);
bcostm	6:e1d9da7fe856	1419	}
bcostm	6:e1d9da7fe856	1420	#endif
bcostm	6:e1d9da7fe856	1421
bcostm	6:e1d9da7fe856	1422	/**
bcostm	6:e1d9da7fe856	1423	* @}
bcostm	6:e1d9da7fe856	1424	*/
bcostm	6:e1d9da7fe856	1425
bcostm	6:e1d9da7fe856	1426	/**
bcostm	6:e1d9da7fe856	1427	* @}
bcostm	6:e1d9da7fe856	1428	*/
bcostm	6:e1d9da7fe856	1429
bcostm	6:e1d9da7fe856	1430	/**
bcostm	6:e1d9da7fe856	1431	* @}
bcostm	6:e1d9da7fe856	1432	*/
bcostm	6:e1d9da7fe856	1433
bcostm	6:e1d9da7fe856	1434	/**
bcostm	6:e1d9da7fe856	1435	* @}
bcostm	6:e1d9da7fe856	1436	*/
bcostm	6:e1d9da7fe856	1437
bcostm	6:e1d9da7fe856	1438	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Library
Created:	10 Jun 2019
Imports:	16
Forks:	0
Commits:	12
Dependents:	2
Dependencies:	1
Followers:	2

Drivers/BSP/STM32746G-Discovery/stm32746g_discovery_audio.c@8:56384bddaba5, 2017-02-23 (annotated)

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