SI570_VFO_F746NG - Library to control Silicon Labs SI570 10 MHZ TO …

Users » DL3LD » Code » SI570_VFO_F746NG

Viktor Zhezher / Mbed 2 deprecated SI570_VFO_F746NG

Library to control Silicon Labs SI570 10 MHZ TO 1.4 GHZ I2C PROGRAMMABLE XO/VCXO.

BSP_F746NG/stm32746g_discovery_audio.c@1:1556bcaaf759, 2016-03-27 (annotated)

Committer:: DL3LD
Date:: Sun Mar 27 06:55:59 2016 +0000
Revision:: 1:1556bcaaf759

STM32F746NG SI570 VFO Test

Who changed what in which revision?

User	Revision	Line number	New contents of line
DL3LD	1:1556bcaaf759	1	/**
DL3LD	1:1556bcaaf759	2	******************************************************************************
DL3LD	1:1556bcaaf759	3	* @file stm32746g_discovery_audio.c
DL3LD	1:1556bcaaf759	4	* @author MCD Application Team
DL3LD	1:1556bcaaf759	5	* @version V1.0.0
DL3LD	1:1556bcaaf759	6	* @date 25-June-2015
DL3LD	1:1556bcaaf759	7	* @brief This file provides the Audio driver for the STM32746G-Discovery board.
DL3LD	1:1556bcaaf759	8	@verbatim
DL3LD	1:1556bcaaf759	9	How To use this driver:
DL3LD	1:1556bcaaf759	10	-----------------------
DL3LD	1:1556bcaaf759	11	+ This driver supports STM32F7xx devices on STM32746G-Discovery (MB1191) board.
DL3LD	1:1556bcaaf759	12	+ Call the function BSP_AUDIO_OUT_Init(
DL3LD	1:1556bcaaf759	13	OutputDevice: physical output mode (OUTPUT_DEVICE_SPEAKER,
DL3LD	1:1556bcaaf759	14	OUTPUT_DEVICE_HEADPHONE or OUTPUT_DEVICE_BOTH)
DL3LD	1:1556bcaaf759	15	Volume : Initial volume to be set (0 is min (mute), 100 is max (100%)
DL3LD	1:1556bcaaf759	16	AudioFreq : Audio frequency in Hz (8000, 16000, 22500, 32000...)
DL3LD	1:1556bcaaf759	17	this parameter is relative to the audio file/stream type.
DL3LD	1:1556bcaaf759	18	)
DL3LD	1:1556bcaaf759	19	This function configures all the hardware required for the audio application (codec, I2C, SAI,
DL3LD	1:1556bcaaf759	20	GPIOs, DMA and interrupt if needed). This function returns AUDIO_OK if configuration is OK.
DL3LD	1:1556bcaaf759	21	If the returned value is different from AUDIO_OK or the function is stuck then the communication with
DL3LD	1:1556bcaaf759	22	the codec or the MFX has failed (try to un-plug the power or reset device in this case).
DL3LD	1:1556bcaaf759	23	- OUTPUT_DEVICE_SPEAKER : only speaker will be set as output for the audio stream.
DL3LD	1:1556bcaaf759	24	- OUTPUT_DEVICE_HEADPHONE: only headphones will be set as output for the audio stream.
DL3LD	1:1556bcaaf759	25	- OUTPUT_DEVICE_BOTH : both Speaker and Headphone are used as outputs for the audio stream
DL3LD	1:1556bcaaf759	26	at the same time.
DL3LD	1:1556bcaaf759	27	Note. On STM32746G-Discovery SAI_DMA is configured in CIRCULAR mode. Due to this the application
DL3LD	1:1556bcaaf759	28	does NOT need to call BSP_AUDIO_OUT_ChangeBuffer() to assure streaming.
DL3LD	1:1556bcaaf759	29	+ Call the function BSP_DISCOVERY_AUDIO_OUT_Play(
DL3LD	1:1556bcaaf759	30	pBuffer: pointer to the audio data file address
DL3LD	1:1556bcaaf759	31	Size : size of the buffer to be sent in Bytes
DL3LD	1:1556bcaaf759	32	)
DL3LD	1:1556bcaaf759	33	to start playing (for the first time) from the audio file/stream.
DL3LD	1:1556bcaaf759	34	+ Call the function BSP_AUDIO_OUT_Pause() to pause playing
DL3LD	1:1556bcaaf759	35	+ Call the function BSP_AUDIO_OUT_Resume() to resume playing.
DL3LD	1:1556bcaaf759	36	Note. After calling BSP_AUDIO_OUT_Pause() function for pause, only BSP_AUDIO_OUT_Resume() should be called
DL3LD	1:1556bcaaf759	37	for resume (it is not allowed to call BSP_AUDIO_OUT_Play() in this case).
DL3LD	1:1556bcaaf759	38	Note. This function should be called only when the audio file is played or paused (not stopped).
DL3LD	1:1556bcaaf759	39	+ For each mode, you may need to implement the relative callback functions into your code.
DL3LD	1:1556bcaaf759	40	The Callback functions are named AUDIO_OUT_XXX_CallBack() and only their prototypes are declared in
DL3LD	1:1556bcaaf759	41	the stm32746g_discovery_audio.h file. (refer to the example for more details on the callbacks implementations)
DL3LD	1:1556bcaaf759	42	+ To Stop playing, to modify the volume level, the frequency, the audio frame slot,
DL3LD	1:1556bcaaf759	43	the device output mode the mute or the stop, use the functions: BSP_AUDIO_OUT_SetVolume(),
DL3LD	1:1556bcaaf759	44	AUDIO_OUT_SetFrequency(), BSP_AUDIO_OUT_SetAudioFrameSlot(), BSP_AUDIO_OUT_SetOutputMode(),
DL3LD	1:1556bcaaf759	45	BSP_AUDIO_OUT_SetMute() and BSP_AUDIO_OUT_Stop().
DL3LD	1:1556bcaaf759	46	+ The driver API and the callback functions are at the end of the stm32746g_discovery_audio.h file.
DL3LD	1:1556bcaaf759	47
DL3LD	1:1556bcaaf759	48	Driver architecture:
DL3LD	1:1556bcaaf759	49	--------------------
DL3LD	1:1556bcaaf759	50	+ This driver provides the High Audio Layer: consists of the function API exported in the stm32746g_discovery_audio.h file
DL3LD	1:1556bcaaf759	51	(BSP_AUDIO_OUT_Init(), BSP_AUDIO_OUT_Play() ...)
DL3LD	1:1556bcaaf759	52	+ This driver provide also the Media Access Layer (MAL): which consists of functions allowing to access the media containing/
DL3LD	1:1556bcaaf759	53	providing the audio file/stream. These functions are also included as local functions into
DL3LD	1:1556bcaaf759	54	the stm32746g_discovery_audio_codec.c file (SAIx_Out_Init() and SAIx_Out_DeInit(), SAIx_In_Init() and SAIx_In_DeInit())
DL3LD	1:1556bcaaf759	55
DL3LD	1:1556bcaaf759	56	Known Limitations:
DL3LD	1:1556bcaaf759	57	------------------
DL3LD	1:1556bcaaf759	58	1- If the TDM Format used to play in parallel 2 audio Stream (the first Stream is configured in codec SLOT0 and second
DL3LD	1:1556bcaaf759	59	Stream in SLOT1) the Pause/Resume, volume and mute feature will control the both streams.
DL3LD	1:1556bcaaf759	60	2- Parsing of audio file is not implemented (in order to determine audio file properties: Mono/Stereo, Data size,
DL3LD	1:1556bcaaf759	61	File size, Audio Frequency, Audio Data header size ...). The configuration is fixed for the given audio file.
DL3LD	1:1556bcaaf759	62	3- Supports only Stereo audio streaming.
DL3LD	1:1556bcaaf759	63	4- Supports only 16-bits audio data size.
DL3LD	1:1556bcaaf759	64	@endverbatim
DL3LD	1:1556bcaaf759	65	******************************************************************************
DL3LD	1:1556bcaaf759	66	* @attention
DL3LD	1:1556bcaaf759	67	*
DL3LD	1:1556bcaaf759	68	* <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
DL3LD	1:1556bcaaf759	69	*
DL3LD	1:1556bcaaf759	70	* Redistribution and use in source and binary forms, with or without modification,
DL3LD	1:1556bcaaf759	71	* are permitted provided that the following conditions are met:
DL3LD	1:1556bcaaf759	72	* 1. Redistributions of source code must retain the above copyright notice,
DL3LD	1:1556bcaaf759	73	* this list of conditions and the following disclaimer.
DL3LD	1:1556bcaaf759	74	* 2. Redistributions in binary form must reproduce the above copyright notice,
DL3LD	1:1556bcaaf759	75	* this list of conditions and the following disclaimer in the documentation
DL3LD	1:1556bcaaf759	76	* and/or other materials provided with the distribution.
DL3LD	1:1556bcaaf759	77	* 3. Neither the name of STMicroelectronics nor the names of its contributors
DL3LD	1:1556bcaaf759	78	* may be used to endorse or promote products derived from this software
DL3LD	1:1556bcaaf759	79	* without specific prior written permission.
DL3LD	1:1556bcaaf759	80	*
DL3LD	1:1556bcaaf759	81	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
DL3LD	1:1556bcaaf759	82	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
DL3LD	1:1556bcaaf759	83	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DL3LD	1:1556bcaaf759	84	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
DL3LD	1:1556bcaaf759	85	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DL3LD	1:1556bcaaf759	86	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
DL3LD	1:1556bcaaf759	87	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
DL3LD	1:1556bcaaf759	88	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
DL3LD	1:1556bcaaf759	89	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
DL3LD	1:1556bcaaf759	90	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
DL3LD	1:1556bcaaf759	91	*
DL3LD	1:1556bcaaf759	92	******************************************************************************
DL3LD	1:1556bcaaf759	93	*/
DL3LD	1:1556bcaaf759	94
DL3LD	1:1556bcaaf759	95	/* Includes ------------------------------------------------------------------*/
DL3LD	1:1556bcaaf759	96	#include "stm32746g_discovery_audio.h"
DL3LD	1:1556bcaaf759	97
DL3LD	1:1556bcaaf759	98	/** @addtogroup BSP
DL3LD	1:1556bcaaf759	99	* @{
DL3LD	1:1556bcaaf759	100	*/
DL3LD	1:1556bcaaf759	101
DL3LD	1:1556bcaaf759	102	/** @addtogroup STM32746G_DISCOVERY
DL3LD	1:1556bcaaf759	103	* @{
DL3LD	1:1556bcaaf759	104	*/
DL3LD	1:1556bcaaf759	105
DL3LD	1:1556bcaaf759	106	/** @defgroup STM32746G_DISCOVERY_AUDIO STM32746G_DISCOVERY AUDIO
DL3LD	1:1556bcaaf759	107	* @brief This file includes the low layer driver for wm8994 Audio Codec
DL3LD	1:1556bcaaf759	108	* available on STM32746G-Discovery board(MB1191).
DL3LD	1:1556bcaaf759	109	* @{
DL3LD	1:1556bcaaf759	110	*/
DL3LD	1:1556bcaaf759	111
DL3LD	1:1556bcaaf759	112	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Types STM32746G_DISCOVERY AUDIO Private Types
DL3LD	1:1556bcaaf759	113	* @{
DL3LD	1:1556bcaaf759	114	*/
DL3LD	1:1556bcaaf759	115	/**
DL3LD	1:1556bcaaf759	116	* @}
DL3LD	1:1556bcaaf759	117	*/
DL3LD	1:1556bcaaf759	118
DL3LD	1:1556bcaaf759	119	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Defines STM32746G_DISCOVERY AUDIO Private Defines
DL3LD	1:1556bcaaf759	120	* @{
DL3LD	1:1556bcaaf759	121	*/
DL3LD	1:1556bcaaf759	122	/**
DL3LD	1:1556bcaaf759	123	* @}
DL3LD	1:1556bcaaf759	124	*/
DL3LD	1:1556bcaaf759	125
DL3LD	1:1556bcaaf759	126	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Macros STM32746G_DISCOVERY AUDIO Private Macros
DL3LD	1:1556bcaaf759	127	* @{
DL3LD	1:1556bcaaf759	128	*/
DL3LD	1:1556bcaaf759	129	/**
DL3LD	1:1556bcaaf759	130	* @}
DL3LD	1:1556bcaaf759	131	*/
DL3LD	1:1556bcaaf759	132
DL3LD	1:1556bcaaf759	133	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Variables STM32746G_DISCOVERY AUDIO Private Variables
DL3LD	1:1556bcaaf759	134	* @{
DL3LD	1:1556bcaaf759	135	*/
DL3LD	1:1556bcaaf759	136	AUDIO_DrvTypeDef *audio_drv;
DL3LD	1:1556bcaaf759	137	SAI_HandleTypeDef haudio_out_sai={0};
DL3LD	1:1556bcaaf759	138	SAI_HandleTypeDef haudio_in_sai={0};
DL3LD	1:1556bcaaf759	139	TIM_HandleTypeDef haudio_tim;
DL3LD	1:1556bcaaf759	140
DL3LD	1:1556bcaaf759	141	uint16_t __IO AudioInVolume = DEFAULT_AUDIO_IN_VOLUME;
DL3LD	1:1556bcaaf759	142
DL3LD	1:1556bcaaf759	143	/**
DL3LD	1:1556bcaaf759	144	* @}
DL3LD	1:1556bcaaf759	145	*/
DL3LD	1:1556bcaaf759	146
DL3LD	1:1556bcaaf759	147	/** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Function_Prototypes STM32746G_DISCOVERY AUDIO Private Function Prototypes
DL3LD	1:1556bcaaf759	148	* @{
DL3LD	1:1556bcaaf759	149	*/
DL3LD	1:1556bcaaf759	150	static void AUDIO_IN_INT_IRQHandler(void);
DL3LD	1:1556bcaaf759	151	static void AUDIO_IN_SAIx_DMAx_IRQHandler(void);
DL3LD	1:1556bcaaf759	152	static void AUDIO_OUT_SAIx_DMAx_IRQHandler(void);
DL3LD	1:1556bcaaf759	153	static void SAIx_Out_Init(uint32_t AudioFreq);
DL3LD	1:1556bcaaf759	154	static void SAIx_Out_DeInit(void);
DL3LD	1:1556bcaaf759	155	static void SAIx_In_Init(uint32_t SaiOutMode, uint32_t SlotActive, uint32_t AudioFreq);
DL3LD	1:1556bcaaf759	156	static void SAIx_In_DeInit(void);
DL3LD	1:1556bcaaf759	157	/**
DL3LD	1:1556bcaaf759	158	* @}
DL3LD	1:1556bcaaf759	159	*/
DL3LD	1:1556bcaaf759	160
DL3LD	1:1556bcaaf759	161	/** @defgroup STM32746G_DISCOVERY_AUDIO_OUT_Exported_Functions STM32746G_DISCOVERY AUDIO Out Exported Functions
DL3LD	1:1556bcaaf759	162	* @{
DL3LD	1:1556bcaaf759	163	*/
DL3LD	1:1556bcaaf759	164
DL3LD	1:1556bcaaf759	165	/**
DL3LD	1:1556bcaaf759	166	* @brief Configures the audio peripherals.
DL3LD	1:1556bcaaf759	167	* @param OutputDevice: OUTPUT_DEVICE_SPEAKER, OUTPUT_DEVICE_HEADPHONE,
DL3LD	1:1556bcaaf759	168	* or OUTPUT_DEVICE_BOTH.
DL3LD	1:1556bcaaf759	169	* @param Volume: Initial volume level (from 0 (Mute) to 100 (Max))
DL3LD	1:1556bcaaf759	170	* @param AudioFreq: Audio frequency used to play the audio stream.
DL3LD	1:1556bcaaf759	171	* @note The I2S PLL input clock must be done in the user application.
DL3LD	1:1556bcaaf759	172	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	173	*/
DL3LD	1:1556bcaaf759	174	uint8_t BSP_AUDIO_OUT_Init(uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq)
DL3LD	1:1556bcaaf759	175	{
DL3LD	1:1556bcaaf759	176	uint8_t ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	177	uint32_t deviceid = 0x00;
DL3LD	1:1556bcaaf759	178
DL3LD	1:1556bcaaf759	179	/* Disable SAI */
DL3LD	1:1556bcaaf759	180	SAIx_Out_DeInit();
DL3LD	1:1556bcaaf759	181
DL3LD	1:1556bcaaf759	182	/* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */
DL3LD	1:1556bcaaf759	183	BSP_AUDIO_OUT_ClockConfig(&haudio_out_sai, AudioFreq, NULL);
DL3LD	1:1556bcaaf759	184
DL3LD	1:1556bcaaf759	185	/* SAI data transfer preparation:
DL3LD	1:1556bcaaf759	186	Prepare the Media to be used for the audio transfer from memory to SAI peripheral */
DL3LD	1:1556bcaaf759	187	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
DL3LD	1:1556bcaaf759	188	if(HAL_SAI_GetState(&haudio_out_sai) == HAL_SAI_STATE_RESET)
DL3LD	1:1556bcaaf759	189	{
DL3LD	1:1556bcaaf759	190	/* Init the SAI MSP: this __weak function can be redefined by the application*/
DL3LD	1:1556bcaaf759	191	BSP_AUDIO_OUT_MspInit(&haudio_out_sai, NULL);
DL3LD	1:1556bcaaf759	192	}
DL3LD	1:1556bcaaf759	193	SAIx_Out_Init(AudioFreq);
DL3LD	1:1556bcaaf759	194
DL3LD	1:1556bcaaf759	195	/* wm8994 codec initialization */
DL3LD	1:1556bcaaf759	196	deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS);
DL3LD	1:1556bcaaf759	197
DL3LD	1:1556bcaaf759	198	if((deviceid) == WM8994_ID)
DL3LD	1:1556bcaaf759	199	{
DL3LD	1:1556bcaaf759	200	/* Reset the Codec Registers */
DL3LD	1:1556bcaaf759	201	wm8994_drv.Reset(AUDIO_I2C_ADDRESS);
DL3LD	1:1556bcaaf759	202	/* Initialize the audio driver structure */
DL3LD	1:1556bcaaf759	203	audio_drv = &wm8994_drv;
DL3LD	1:1556bcaaf759	204	ret = AUDIO_OK;
DL3LD	1:1556bcaaf759	205	}
DL3LD	1:1556bcaaf759	206	else
DL3LD	1:1556bcaaf759	207	{
DL3LD	1:1556bcaaf759	208	ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	209	}
DL3LD	1:1556bcaaf759	210
DL3LD	1:1556bcaaf759	211	if(ret == AUDIO_OK)
DL3LD	1:1556bcaaf759	212	{
DL3LD	1:1556bcaaf759	213	/* Initialize the codec internal registers */
DL3LD	1:1556bcaaf759	214	audio_drv->Init(AUDIO_I2C_ADDRESS, OutputDevice, Volume, AudioFreq);
DL3LD	1:1556bcaaf759	215	}
DL3LD	1:1556bcaaf759	216
DL3LD	1:1556bcaaf759	217	return ret;
DL3LD	1:1556bcaaf759	218	}
DL3LD	1:1556bcaaf759	219
DL3LD	1:1556bcaaf759	220	/**
DL3LD	1:1556bcaaf759	221	* @brief Starts playing audio stream from a data buffer for a determined size.
DL3LD	1:1556bcaaf759	222	* @param pBuffer: Pointer to the buffer
DL3LD	1:1556bcaaf759	223	* @param Size: Number of audio data in BYTES unit.
DL3LD	1:1556bcaaf759	224	* In memory, first element is for left channel, second element is for right channel
DL3LD	1:1556bcaaf759	225	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	226	*/
DL3LD	1:1556bcaaf759	227	uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size)
DL3LD	1:1556bcaaf759	228	{
DL3LD	1:1556bcaaf759	229	/* Call the audio Codec Play function */
DL3LD	1:1556bcaaf759	230	if(audio_drv->Play(AUDIO_I2C_ADDRESS, pBuffer, Size) != 0)
DL3LD	1:1556bcaaf759	231	{
DL3LD	1:1556bcaaf759	232	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	233	}
DL3LD	1:1556bcaaf759	234	else
DL3LD	1:1556bcaaf759	235	{
DL3LD	1:1556bcaaf759	236	/* Update the Media layer and enable it for play */
DL3LD	1:1556bcaaf759	237	HAL_SAI_Transmit_DMA(&haudio_out_sai, (uint8_t*) pBuffer, DMA_MAX(Size / AUDIODATA_SIZE));
DL3LD	1:1556bcaaf759	238
DL3LD	1:1556bcaaf759	239	return AUDIO_OK;
DL3LD	1:1556bcaaf759	240	}
DL3LD	1:1556bcaaf759	241	}
DL3LD	1:1556bcaaf759	242
DL3LD	1:1556bcaaf759	243	/**
DL3LD	1:1556bcaaf759	244	* @brief Sends n-Bytes on the SAI interface.
DL3LD	1:1556bcaaf759	245	* @param pData: pointer on data address
DL3LD	1:1556bcaaf759	246	* @param Size: number of data to be written
DL3LD	1:1556bcaaf759	247	* @retval None
DL3LD	1:1556bcaaf759	248	*/
DL3LD	1:1556bcaaf759	249	void BSP_AUDIO_OUT_ChangeBuffer(uint16_t *pData, uint16_t Size)
DL3LD	1:1556bcaaf759	250	{
DL3LD	1:1556bcaaf759	251	HAL_SAI_Transmit_DMA(&haudio_out_sai, (uint8_t*) pData, Size);
DL3LD	1:1556bcaaf759	252	}
DL3LD	1:1556bcaaf759	253
DL3LD	1:1556bcaaf759	254	/**
DL3LD	1:1556bcaaf759	255	* @brief This function Pauses the audio file stream. In case
DL3LD	1:1556bcaaf759	256	* of using DMA, the DMA Pause feature is used.
DL3LD	1:1556bcaaf759	257	* @note When calling BSP_AUDIO_OUT_Pause() function for pause, only
DL3LD	1:1556bcaaf759	258	* BSP_AUDIO_OUT_Resume() function should be called for resume (use of BSP_AUDIO_OUT_Play()
DL3LD	1:1556bcaaf759	259	* function for resume could lead to unexpected behaviour).
DL3LD	1:1556bcaaf759	260	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	261	*/
DL3LD	1:1556bcaaf759	262	uint8_t BSP_AUDIO_OUT_Pause(void)
DL3LD	1:1556bcaaf759	263	{
DL3LD	1:1556bcaaf759	264	/* Call the Audio Codec Pause/Resume function */
DL3LD	1:1556bcaaf759	265	if(audio_drv->Pause(AUDIO_I2C_ADDRESS) != 0)
DL3LD	1:1556bcaaf759	266	{
DL3LD	1:1556bcaaf759	267	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	268	}
DL3LD	1:1556bcaaf759	269	else
DL3LD	1:1556bcaaf759	270	{
DL3LD	1:1556bcaaf759	271	/* Call the Media layer pause function */
DL3LD	1:1556bcaaf759	272	HAL_SAI_DMAPause(&haudio_out_sai);
DL3LD	1:1556bcaaf759	273
DL3LD	1:1556bcaaf759	274	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	275	return AUDIO_OK;
DL3LD	1:1556bcaaf759	276	}
DL3LD	1:1556bcaaf759	277	}
DL3LD	1:1556bcaaf759	278
DL3LD	1:1556bcaaf759	279	/**
DL3LD	1:1556bcaaf759	280	* @brief This function Resumes the audio file stream.
DL3LD	1:1556bcaaf759	281	* @note When calling BSP_AUDIO_OUT_Pause() function for pause, only
DL3LD	1:1556bcaaf759	282	* BSP_AUDIO_OUT_Resume() function should be called for resume (use of BSP_AUDIO_OUT_Play()
DL3LD	1:1556bcaaf759	283	* function for resume could lead to unexpected behaviour).
DL3LD	1:1556bcaaf759	284	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	285	*/
DL3LD	1:1556bcaaf759	286	uint8_t BSP_AUDIO_OUT_Resume(void)
DL3LD	1:1556bcaaf759	287	{
DL3LD	1:1556bcaaf759	288	/* Call the Audio Codec Pause/Resume function */
DL3LD	1:1556bcaaf759	289	if(audio_drv->Resume(AUDIO_I2C_ADDRESS) != 0)
DL3LD	1:1556bcaaf759	290	{
DL3LD	1:1556bcaaf759	291	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	292	}
DL3LD	1:1556bcaaf759	293	else
DL3LD	1:1556bcaaf759	294	{
DL3LD	1:1556bcaaf759	295	/* Call the Media layer pause/resume function */
DL3LD	1:1556bcaaf759	296	HAL_SAI_DMAResume(&haudio_out_sai);
DL3LD	1:1556bcaaf759	297
DL3LD	1:1556bcaaf759	298	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	299	return AUDIO_OK;
DL3LD	1:1556bcaaf759	300	}
DL3LD	1:1556bcaaf759	301	}
DL3LD	1:1556bcaaf759	302
DL3LD	1:1556bcaaf759	303	/**
DL3LD	1:1556bcaaf759	304	* @brief Stops audio playing and Power down the Audio Codec.
DL3LD	1:1556bcaaf759	305	* @param Option: could be one of the following parameters
DL3LD	1:1556bcaaf759	306	* - CODEC_PDWN_SW: for software power off (by writing registers).
DL3LD	1:1556bcaaf759	307	* Then no need to reconfigure the Codec after power on.
DL3LD	1:1556bcaaf759	308	* - CODEC_PDWN_HW: completely shut down the codec (physically).
DL3LD	1:1556bcaaf759	309	* Then need to reconfigure the Codec after power on.
DL3LD	1:1556bcaaf759	310	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	311	*/
DL3LD	1:1556bcaaf759	312	uint8_t BSP_AUDIO_OUT_Stop(uint32_t Option)
DL3LD	1:1556bcaaf759	313	{
DL3LD	1:1556bcaaf759	314	/* Call the Media layer stop function */
DL3LD	1:1556bcaaf759	315	HAL_SAI_DMAStop(&haudio_out_sai);
DL3LD	1:1556bcaaf759	316
DL3LD	1:1556bcaaf759	317	/* Call Audio Codec Stop function */
DL3LD	1:1556bcaaf759	318	if(audio_drv->Stop(AUDIO_I2C_ADDRESS, Option) != 0)
DL3LD	1:1556bcaaf759	319	{
DL3LD	1:1556bcaaf759	320	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	321	}
DL3LD	1:1556bcaaf759	322	else
DL3LD	1:1556bcaaf759	323	{
DL3LD	1:1556bcaaf759	324	if(Option == CODEC_PDWN_HW)
DL3LD	1:1556bcaaf759	325	{
DL3LD	1:1556bcaaf759	326	/* Wait at least 100us */
DL3LD	1:1556bcaaf759	327	HAL_Delay(1);
DL3LD	1:1556bcaaf759	328	}
DL3LD	1:1556bcaaf759	329	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	330	return AUDIO_OK;
DL3LD	1:1556bcaaf759	331	}
DL3LD	1:1556bcaaf759	332	}
DL3LD	1:1556bcaaf759	333
DL3LD	1:1556bcaaf759	334	/**
DL3LD	1:1556bcaaf759	335	* @brief Controls the current audio volume level.
DL3LD	1:1556bcaaf759	336	* @param Volume: Volume level to be set in percentage from 0% to 100% (0 for
DL3LD	1:1556bcaaf759	337	* Mute and 100 for Max volume level).
DL3LD	1:1556bcaaf759	338	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	339	*/
DL3LD	1:1556bcaaf759	340	uint8_t BSP_AUDIO_OUT_SetVolume(uint8_t Volume)
DL3LD	1:1556bcaaf759	341	{
DL3LD	1:1556bcaaf759	342	/* Call the codec volume control function with converted volume value */
DL3LD	1:1556bcaaf759	343	if(audio_drv->SetVolume(AUDIO_I2C_ADDRESS, Volume) != 0)
DL3LD	1:1556bcaaf759	344	{
DL3LD	1:1556bcaaf759	345	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	346	}
DL3LD	1:1556bcaaf759	347	else
DL3LD	1:1556bcaaf759	348	{
DL3LD	1:1556bcaaf759	349	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	350	return AUDIO_OK;
DL3LD	1:1556bcaaf759	351	}
DL3LD	1:1556bcaaf759	352	}
DL3LD	1:1556bcaaf759	353
DL3LD	1:1556bcaaf759	354	/**
DL3LD	1:1556bcaaf759	355	* @brief Enables or disables the MUTE mode by software
DL3LD	1:1556bcaaf759	356	* @param Cmd: Could be AUDIO_MUTE_ON to mute sound or AUDIO_MUTE_OFF to
DL3LD	1:1556bcaaf759	357	* unmute the codec and restore previous volume level.
DL3LD	1:1556bcaaf759	358	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	359	*/
DL3LD	1:1556bcaaf759	360	uint8_t BSP_AUDIO_OUT_SetMute(uint32_t Cmd)
DL3LD	1:1556bcaaf759	361	{
DL3LD	1:1556bcaaf759	362	/* Call the Codec Mute function */
DL3LD	1:1556bcaaf759	363	if(audio_drv->SetMute(AUDIO_I2C_ADDRESS, Cmd) != 0)
DL3LD	1:1556bcaaf759	364	{
DL3LD	1:1556bcaaf759	365	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	366	}
DL3LD	1:1556bcaaf759	367	else
DL3LD	1:1556bcaaf759	368	{
DL3LD	1:1556bcaaf759	369	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	370	return AUDIO_OK;
DL3LD	1:1556bcaaf759	371	}
DL3LD	1:1556bcaaf759	372	}
DL3LD	1:1556bcaaf759	373
DL3LD	1:1556bcaaf759	374	/**
DL3LD	1:1556bcaaf759	375	* @brief Switch dynamically (while audio file is played) the output target
DL3LD	1:1556bcaaf759	376	* (speaker or headphone).
DL3LD	1:1556bcaaf759	377	* @param Output: The audio output target: OUTPUT_DEVICE_SPEAKER,
DL3LD	1:1556bcaaf759	378	* OUTPUT_DEVICE_HEADPHONE or OUTPUT_DEVICE_BOTH
DL3LD	1:1556bcaaf759	379	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	380	*/
DL3LD	1:1556bcaaf759	381	uint8_t BSP_AUDIO_OUT_SetOutputMode(uint8_t Output)
DL3LD	1:1556bcaaf759	382	{
DL3LD	1:1556bcaaf759	383	/* Call the Codec output device function */
DL3LD	1:1556bcaaf759	384	if(audio_drv->SetOutputMode(AUDIO_I2C_ADDRESS, Output) != 0)
DL3LD	1:1556bcaaf759	385	{
DL3LD	1:1556bcaaf759	386	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	387	}
DL3LD	1:1556bcaaf759	388	else
DL3LD	1:1556bcaaf759	389	{
DL3LD	1:1556bcaaf759	390	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	391	return AUDIO_OK;
DL3LD	1:1556bcaaf759	392	}
DL3LD	1:1556bcaaf759	393	}
DL3LD	1:1556bcaaf759	394
DL3LD	1:1556bcaaf759	395	/**
DL3LD	1:1556bcaaf759	396	* @brief Updates the audio frequency.
DL3LD	1:1556bcaaf759	397	* @param AudioFreq: Audio frequency used to play the audio stream.
DL3LD	1:1556bcaaf759	398	* @note This API should be called after the BSP_AUDIO_OUT_Init() to adjust the
DL3LD	1:1556bcaaf759	399	* audio frequency.
DL3LD	1:1556bcaaf759	400	* @retval None
DL3LD	1:1556bcaaf759	401	*/
DL3LD	1:1556bcaaf759	402	void BSP_AUDIO_OUT_SetFrequency(uint32_t AudioFreq)
DL3LD	1:1556bcaaf759	403	{
DL3LD	1:1556bcaaf759	404	/* PLL clock is set depending by the AudioFreq (44.1khz vs 48khz groups) */
DL3LD	1:1556bcaaf759	405	BSP_AUDIO_OUT_ClockConfig(&haudio_out_sai, AudioFreq, NULL);
DL3LD	1:1556bcaaf759	406
DL3LD	1:1556bcaaf759	407	/* Disable SAI peripheral to allow access to SAI internal registers */
DL3LD	1:1556bcaaf759	408	__HAL_SAI_DISABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	409
DL3LD	1:1556bcaaf759	410	/* Update the SAI audio frequency configuration */
DL3LD	1:1556bcaaf759	411	haudio_out_sai.Init.AudioFrequency = AudioFreq;
DL3LD	1:1556bcaaf759	412	HAL_SAI_Init(&haudio_out_sai);
DL3LD	1:1556bcaaf759	413
DL3LD	1:1556bcaaf759	414	/* Enable SAI peripheral to generate MCLK */
DL3LD	1:1556bcaaf759	415	__HAL_SAI_ENABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	416	}
DL3LD	1:1556bcaaf759	417
DL3LD	1:1556bcaaf759	418	/**
DL3LD	1:1556bcaaf759	419	* @brief Updates the Audio frame slot configuration.
DL3LD	1:1556bcaaf759	420	* @param AudioFrameSlot: specifies the audio Frame slot
DL3LD	1:1556bcaaf759	421	* This parameter can be one of the following values
DL3LD	1:1556bcaaf759	422	* @arg CODEC_AUDIOFRAME_SLOT_0123
DL3LD	1:1556bcaaf759	423	* @arg CODEC_AUDIOFRAME_SLOT_02
DL3LD	1:1556bcaaf759	424	* @arg CODEC_AUDIOFRAME_SLOT_13
DL3LD	1:1556bcaaf759	425	* @note This API should be called after the BSP_AUDIO_OUT_Init() to adjust the
DL3LD	1:1556bcaaf759	426	* audio frame slot.
DL3LD	1:1556bcaaf759	427	* @retval None
DL3LD	1:1556bcaaf759	428	*/
DL3LD	1:1556bcaaf759	429	void BSP_AUDIO_OUT_SetAudioFrameSlot(uint32_t AudioFrameSlot)
DL3LD	1:1556bcaaf759	430	{
DL3LD	1:1556bcaaf759	431	/* Disable SAI peripheral to allow access to SAI internal registers */
DL3LD	1:1556bcaaf759	432	__HAL_SAI_DISABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	433
DL3LD	1:1556bcaaf759	434	/* Update the SAI audio frame slot configuration */
DL3LD	1:1556bcaaf759	435	haudio_out_sai.SlotInit.SlotActive = AudioFrameSlot;
DL3LD	1:1556bcaaf759	436	HAL_SAI_Init(&haudio_out_sai);
DL3LD	1:1556bcaaf759	437
DL3LD	1:1556bcaaf759	438	/* Enable SAI peripheral to generate MCLK */
DL3LD	1:1556bcaaf759	439	__HAL_SAI_ENABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	440	}
DL3LD	1:1556bcaaf759	441
DL3LD	1:1556bcaaf759	442	/**
DL3LD	1:1556bcaaf759	443	* @brief Deinit the audio peripherals.
DL3LD	1:1556bcaaf759	444	* @retval None
DL3LD	1:1556bcaaf759	445	*/
DL3LD	1:1556bcaaf759	446	void BSP_AUDIO_OUT_DeInit(void)
DL3LD	1:1556bcaaf759	447	{
DL3LD	1:1556bcaaf759	448	SAIx_Out_DeInit();
DL3LD	1:1556bcaaf759	449	/* DeInit the SAI MSP : this __weak function can be rewritten by the application */
DL3LD	1:1556bcaaf759	450	BSP_AUDIO_OUT_MspDeInit(&haudio_out_sai, NULL);
DL3LD	1:1556bcaaf759	451	}
DL3LD	1:1556bcaaf759	452
DL3LD	1:1556bcaaf759	453	/**
DL3LD	1:1556bcaaf759	454	* @brief Tx Transfer completed callbacks.
DL3LD	1:1556bcaaf759	455	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	456	* @retval None
DL3LD	1:1556bcaaf759	457	*/
DL3LD	1:1556bcaaf759	458	void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai)
DL3LD	1:1556bcaaf759	459	{
DL3LD	1:1556bcaaf759	460	/* Manage the remaining file size and new address offset: This function
DL3LD	1:1556bcaaf759	461	should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */
DL3LD	1:1556bcaaf759	462	BSP_AUDIO_OUT_TransferComplete_CallBack();
DL3LD	1:1556bcaaf759	463	}
DL3LD	1:1556bcaaf759	464
DL3LD	1:1556bcaaf759	465	/**
DL3LD	1:1556bcaaf759	466	* @brief Tx Half Transfer completed callbacks.
DL3LD	1:1556bcaaf759	467	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	468	* @retval None
DL3LD	1:1556bcaaf759	469	*/
DL3LD	1:1556bcaaf759	470	void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai)
DL3LD	1:1556bcaaf759	471	{
DL3LD	1:1556bcaaf759	472	/* Manage the remaining file size and new address offset: This function
DL3LD	1:1556bcaaf759	473	should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */
DL3LD	1:1556bcaaf759	474	BSP_AUDIO_OUT_HalfTransfer_CallBack();
DL3LD	1:1556bcaaf759	475	}
DL3LD	1:1556bcaaf759	476
DL3LD	1:1556bcaaf759	477	/**
DL3LD	1:1556bcaaf759	478	* @brief SAI error callbacks.
DL3LD	1:1556bcaaf759	479	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	480	* @retval None
DL3LD	1:1556bcaaf759	481	*/
DL3LD	1:1556bcaaf759	482	void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai)
DL3LD	1:1556bcaaf759	483	{
DL3LD	1:1556bcaaf759	484	HAL_SAI_StateTypeDef audio_out_state;
DL3LD	1:1556bcaaf759	485	HAL_SAI_StateTypeDef audio_in_state;
DL3LD	1:1556bcaaf759	486
DL3LD	1:1556bcaaf759	487	audio_out_state = HAL_SAI_GetState(&haudio_out_sai);
DL3LD	1:1556bcaaf759	488	audio_in_state = HAL_SAI_GetState(&haudio_in_sai);
DL3LD	1:1556bcaaf759	489
DL3LD	1:1556bcaaf759	490	/* Determines if it is an audio out or audio in error */
DL3LD	1:1556bcaaf759	491	if ((audio_out_state == HAL_SAI_STATE_BUSY) \|\| (audio_out_state == HAL_SAI_STATE_BUSY_TX)
DL3LD	1:1556bcaaf759	492	\|\| (audio_out_state == HAL_SAI_STATE_TIMEOUT) \|\| (audio_out_state == HAL_SAI_STATE_ERROR))
DL3LD	1:1556bcaaf759	493	{
DL3LD	1:1556bcaaf759	494	BSP_AUDIO_OUT_Error_CallBack();
DL3LD	1:1556bcaaf759	495	}
DL3LD	1:1556bcaaf759	496
DL3LD	1:1556bcaaf759	497	if ((audio_in_state == HAL_SAI_STATE_BUSY) \|\| (audio_in_state == HAL_SAI_STATE_BUSY_RX)
DL3LD	1:1556bcaaf759	498	\|\| (audio_in_state == HAL_SAI_STATE_TIMEOUT) \|\| (audio_in_state == HAL_SAI_STATE_ERROR))
DL3LD	1:1556bcaaf759	499	{
DL3LD	1:1556bcaaf759	500	BSP_AUDIO_IN_Error_CallBack();
DL3LD	1:1556bcaaf759	501	}
DL3LD	1:1556bcaaf759	502	}
DL3LD	1:1556bcaaf759	503
DL3LD	1:1556bcaaf759	504	/**
DL3LD	1:1556bcaaf759	505	* @brief Manages the DMA full Transfer complete event.
DL3LD	1:1556bcaaf759	506	* @retval None
DL3LD	1:1556bcaaf759	507	*/
DL3LD	1:1556bcaaf759	508	__weak void BSP_AUDIO_OUT_TransferComplete_CallBack(void)
DL3LD	1:1556bcaaf759	509	{
DL3LD	1:1556bcaaf759	510	}
DL3LD	1:1556bcaaf759	511
DL3LD	1:1556bcaaf759	512	/**
DL3LD	1:1556bcaaf759	513	* @brief Manages the DMA Half Transfer complete event.
DL3LD	1:1556bcaaf759	514	* @retval None
DL3LD	1:1556bcaaf759	515	*/
DL3LD	1:1556bcaaf759	516	__weak void BSP_AUDIO_OUT_HalfTransfer_CallBack(void)
DL3LD	1:1556bcaaf759	517	{
DL3LD	1:1556bcaaf759	518	}
DL3LD	1:1556bcaaf759	519
DL3LD	1:1556bcaaf759	520	/**
DL3LD	1:1556bcaaf759	521	* @brief Manages the DMA FIFO error event.
DL3LD	1:1556bcaaf759	522	* @retval None
DL3LD	1:1556bcaaf759	523	*/
DL3LD	1:1556bcaaf759	524	__weak void BSP_AUDIO_OUT_Error_CallBack(void)
DL3LD	1:1556bcaaf759	525	{
DL3LD	1:1556bcaaf759	526	}
DL3LD	1:1556bcaaf759	527
DL3LD	1:1556bcaaf759	528	/**
DL3LD	1:1556bcaaf759	529	* @brief Initializes BSP_AUDIO_OUT MSP.
DL3LD	1:1556bcaaf759	530	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	531	* @param Params
DL3LD	1:1556bcaaf759	532	* @retval None
DL3LD	1:1556bcaaf759	533	*/
DL3LD	1:1556bcaaf759	534	__weak void BSP_AUDIO_OUT_MspInit(SAI_HandleTypeDef hsai, void Params)
DL3LD	1:1556bcaaf759	535	{
DL3LD	1:1556bcaaf759	536	static DMA_HandleTypeDef hdma_sai_tx;
DL3LD	1:1556bcaaf759	537	GPIO_InitTypeDef gpio_init_structure;
DL3LD	1:1556bcaaf759	538
DL3LD	1:1556bcaaf759	539	/* Enable SAI clock */
DL3LD	1:1556bcaaf759	540	AUDIO_OUT_SAIx_CLK_ENABLE();
DL3LD	1:1556bcaaf759	541
DL3LD	1:1556bcaaf759	542	/* Enable GPIO clock */
DL3LD	1:1556bcaaf759	543	AUDIO_OUT_SAIx_MCLK_ENABLE();
DL3LD	1:1556bcaaf759	544	AUDIO_OUT_SAIx_SCK_SD_ENABLE();
DL3LD	1:1556bcaaf759	545	AUDIO_OUT_SAIx_FS_ENABLE();
DL3LD	1:1556bcaaf759	546	/* CODEC_SAI pins configuration: FS, SCK, MCK and SD pins ------------------*/
DL3LD	1:1556bcaaf759	547	gpio_init_structure.Pin = AUDIO_OUT_SAIx_FS_PIN;
DL3LD	1:1556bcaaf759	548	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
DL3LD	1:1556bcaaf759	549	gpio_init_structure.Pull = GPIO_NOPULL;
DL3LD	1:1556bcaaf759	550	gpio_init_structure.Speed = GPIO_SPEED_HIGH;
DL3LD	1:1556bcaaf759	551	gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF;
DL3LD	1:1556bcaaf759	552	HAL_GPIO_Init(AUDIO_OUT_SAIx_FS_GPIO_PORT, &gpio_init_structure);
DL3LD	1:1556bcaaf759	553
DL3LD	1:1556bcaaf759	554	gpio_init_structure.Pin = AUDIO_OUT_SAIx_SCK_PIN;
DL3LD	1:1556bcaaf759	555	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
DL3LD	1:1556bcaaf759	556	gpio_init_structure.Pull = GPIO_NOPULL;
DL3LD	1:1556bcaaf759	557	gpio_init_structure.Speed = GPIO_SPEED_HIGH;
DL3LD	1:1556bcaaf759	558	gpio_init_structure.Alternate = AUDIO_OUT_SAIx_SCK_AF;
DL3LD	1:1556bcaaf759	559	HAL_GPIO_Init(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, &gpio_init_structure);
DL3LD	1:1556bcaaf759	560
DL3LD	1:1556bcaaf759	561	gpio_init_structure.Pin = AUDIO_OUT_SAIx_SD_PIN;
DL3LD	1:1556bcaaf759	562	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
DL3LD	1:1556bcaaf759	563	gpio_init_structure.Pull = GPIO_NOPULL;
DL3LD	1:1556bcaaf759	564	gpio_init_structure.Speed = GPIO_SPEED_HIGH;
DL3LD	1:1556bcaaf759	565	gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF;
DL3LD	1:1556bcaaf759	566	HAL_GPIO_Init(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, &gpio_init_structure);
DL3LD	1:1556bcaaf759	567
DL3LD	1:1556bcaaf759	568	gpio_init_structure.Pin = AUDIO_OUT_SAIx_MCLK_PIN;
DL3LD	1:1556bcaaf759	569	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
DL3LD	1:1556bcaaf759	570	gpio_init_structure.Pull = GPIO_NOPULL;
DL3LD	1:1556bcaaf759	571	gpio_init_structure.Speed = GPIO_SPEED_HIGH;
DL3LD	1:1556bcaaf759	572	gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF;
DL3LD	1:1556bcaaf759	573	HAL_GPIO_Init(AUDIO_OUT_SAIx_MCLK_GPIO_PORT, &gpio_init_structure);
DL3LD	1:1556bcaaf759	574
DL3LD	1:1556bcaaf759	575	/* Enable the DMA clock */
DL3LD	1:1556bcaaf759	576	AUDIO_OUT_SAIx_DMAx_CLK_ENABLE();
DL3LD	1:1556bcaaf759	577
DL3LD	1:1556bcaaf759	578	if(hsai->Instance == AUDIO_OUT_SAIx)
DL3LD	1:1556bcaaf759	579	{
DL3LD	1:1556bcaaf759	580	/* Configure the hdma_saiTx handle parameters */
DL3LD	1:1556bcaaf759	581	hdma_sai_tx.Init.Channel = AUDIO_OUT_SAIx_DMAx_CHANNEL;
DL3LD	1:1556bcaaf759	582	hdma_sai_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
DL3LD	1:1556bcaaf759	583	hdma_sai_tx.Init.PeriphInc = DMA_PINC_DISABLE;
DL3LD	1:1556bcaaf759	584	hdma_sai_tx.Init.MemInc = DMA_MINC_ENABLE;
DL3LD	1:1556bcaaf759	585	hdma_sai_tx.Init.PeriphDataAlignment = AUDIO_OUT_SAIx_DMAx_PERIPH_DATA_SIZE;
DL3LD	1:1556bcaaf759	586	hdma_sai_tx.Init.MemDataAlignment = AUDIO_OUT_SAIx_DMAx_MEM_DATA_SIZE;
DL3LD	1:1556bcaaf759	587	hdma_sai_tx.Init.Mode = DMA_CIRCULAR;
DL3LD	1:1556bcaaf759	588	hdma_sai_tx.Init.Priority = DMA_PRIORITY_HIGH;
DL3LD	1:1556bcaaf759	589	hdma_sai_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
DL3LD	1:1556bcaaf759	590	hdma_sai_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
DL3LD	1:1556bcaaf759	591	hdma_sai_tx.Init.MemBurst = DMA_MBURST_SINGLE;
DL3LD	1:1556bcaaf759	592	hdma_sai_tx.Init.PeriphBurst = DMA_PBURST_SINGLE;
DL3LD	1:1556bcaaf759	593
DL3LD	1:1556bcaaf759	594	hdma_sai_tx.Instance = AUDIO_OUT_SAIx_DMAx_STREAM;
DL3LD	1:1556bcaaf759	595
DL3LD	1:1556bcaaf759	596	/* Associate the DMA handle */
DL3LD	1:1556bcaaf759	597	__HAL_LINKDMA(hsai, hdmatx, hdma_sai_tx);
DL3LD	1:1556bcaaf759	598
DL3LD	1:1556bcaaf759	599	/* Deinitialize the Stream for new transfer */
DL3LD	1:1556bcaaf759	600	HAL_DMA_DeInit(&hdma_sai_tx);
DL3LD	1:1556bcaaf759	601
DL3LD	1:1556bcaaf759	602	/* Configure the DMA Stream */
DL3LD	1:1556bcaaf759	603	HAL_DMA_Init(&hdma_sai_tx);
DL3LD	1:1556bcaaf759	604	}
DL3LD	1:1556bcaaf759	605	#if ( __MBED__ == 1)
DL3LD	1:1556bcaaf759	606	// Enable interrupt
DL3LD	1:1556bcaaf759	607	IRQn_Type irqn = (IRQn_Type)(AUDIO_OUT_SAIx_DMAx_IRQ);
DL3LD	1:1556bcaaf759	608	NVIC_ClearPendingIRQ(irqn);
DL3LD	1:1556bcaaf759	609	NVIC_DisableIRQ(irqn);
DL3LD	1:1556bcaaf759	610	NVIC_SetPriority(irqn, AUDIO_OUT_IRQ_PREPRIO);
DL3LD	1:1556bcaaf759	611	NVIC_SetVector(irqn, (uint32_t)AUDIO_OUT_SAIx_DMAx_IRQHandler);
DL3LD	1:1556bcaaf759	612	NVIC_EnableIRQ(irqn);
DL3LD	1:1556bcaaf759	613
DL3LD	1:1556bcaaf759	614	#else
DL3LD	1:1556bcaaf759	615	/* SAI DMA IRQ Channel configuration */
DL3LD	1:1556bcaaf759	616	HAL_NVIC_SetPriority(AUDIO_OUT_SAIx_DMAx_IRQ, AUDIO_OUT_IRQ_PREPRIO, 0);
DL3LD	1:1556bcaaf759	617	HAL_NVIC_EnableIRQ(AUDIO_OUT_SAIx_DMAx_IRQ);
DL3LD	1:1556bcaaf759	618	#endif
DL3LD	1:1556bcaaf759	619	}
DL3LD	1:1556bcaaf759	620
DL3LD	1:1556bcaaf759	621	/**
DL3LD	1:1556bcaaf759	622	* @brief Deinitializes SAI MSP.
DL3LD	1:1556bcaaf759	623	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	624	* @param Params
DL3LD	1:1556bcaaf759	625	* @retval None
DL3LD	1:1556bcaaf759	626	*/
DL3LD	1:1556bcaaf759	627	__weak void BSP_AUDIO_OUT_MspDeInit(SAI_HandleTypeDef hsai, void Params)
DL3LD	1:1556bcaaf759	628	{
DL3LD	1:1556bcaaf759	629	GPIO_InitTypeDef gpio_init_structure;
DL3LD	1:1556bcaaf759	630
DL3LD	1:1556bcaaf759	631	/* SAI DMA IRQ Channel deactivation */
DL3LD	1:1556bcaaf759	632	HAL_NVIC_DisableIRQ(AUDIO_OUT_SAIx_DMAx_IRQ);
DL3LD	1:1556bcaaf759	633
DL3LD	1:1556bcaaf759	634	if(hsai->Instance == AUDIO_OUT_SAIx)
DL3LD	1:1556bcaaf759	635	{
DL3LD	1:1556bcaaf759	636	/* Deinitialize the DMA stream */
DL3LD	1:1556bcaaf759	637	HAL_DMA_DeInit(hsai->hdmatx);
DL3LD	1:1556bcaaf759	638	}
DL3LD	1:1556bcaaf759	639
DL3LD	1:1556bcaaf759	640	/* Disable SAI peripheral */
DL3LD	1:1556bcaaf759	641	__HAL_SAI_DISABLE(hsai);
DL3LD	1:1556bcaaf759	642
DL3LD	1:1556bcaaf759	643	/* Deactives CODEC_SAI pins FS, SCK, MCK and SD by putting them in input mode */
DL3LD	1:1556bcaaf759	644	gpio_init_structure.Pin = AUDIO_OUT_SAIx_FS_PIN;
DL3LD	1:1556bcaaf759	645	HAL_GPIO_DeInit(AUDIO_OUT_SAIx_FS_GPIO_PORT, gpio_init_structure.Pin);
DL3LD	1:1556bcaaf759	646
DL3LD	1:1556bcaaf759	647	gpio_init_structure.Pin = AUDIO_OUT_SAIx_SCK_PIN;
DL3LD	1:1556bcaaf759	648	HAL_GPIO_DeInit(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, gpio_init_structure.Pin);
DL3LD	1:1556bcaaf759	649
DL3LD	1:1556bcaaf759	650	gpio_init_structure.Pin = AUDIO_OUT_SAIx_SD_PIN;
DL3LD	1:1556bcaaf759	651	HAL_GPIO_DeInit(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, gpio_init_structure.Pin);
DL3LD	1:1556bcaaf759	652
DL3LD	1:1556bcaaf759	653	gpio_init_structure.Pin = AUDIO_OUT_SAIx_MCLK_PIN;
DL3LD	1:1556bcaaf759	654	HAL_GPIO_DeInit(AUDIO_OUT_SAIx_MCLK_GPIO_PORT, gpio_init_structure.Pin);
DL3LD	1:1556bcaaf759	655
DL3LD	1:1556bcaaf759	656	/* Disable SAI clock */
DL3LD	1:1556bcaaf759	657	AUDIO_OUT_SAIx_CLK_DISABLE();
DL3LD	1:1556bcaaf759	658
DL3LD	1:1556bcaaf759	659	/* GPIO pins clock and DMA clock can be shut down in the application
DL3LD	1:1556bcaaf759	660	by surcharging this __weak function */
DL3LD	1:1556bcaaf759	661	}
DL3LD	1:1556bcaaf759	662
DL3LD	1:1556bcaaf759	663	/**
DL3LD	1:1556bcaaf759	664	* @brief Clock Config.
DL3LD	1:1556bcaaf759	665	* @param hsai: might be required to set audio peripheral predivider if any.
DL3LD	1:1556bcaaf759	666	* @param AudioFreq: Audio frequency used to play the audio stream.
DL3LD	1:1556bcaaf759	667	* @param Params
DL3LD	1:1556bcaaf759	668	* @note This API is called by BSP_AUDIO_OUT_Init() and BSP_AUDIO_OUT_SetFrequency()
DL3LD	1:1556bcaaf759	669	* Being __weak it can be overwritten by the application
DL3LD	1:1556bcaaf759	670	* @retval None
DL3LD	1:1556bcaaf759	671	*/
DL3LD	1:1556bcaaf759	672	__weak void BSP_AUDIO_OUT_ClockConfig(SAI_HandleTypeDef hsai, uint32_t AudioFreq, void Params)
DL3LD	1:1556bcaaf759	673	{
DL3LD	1:1556bcaaf759	674	RCC_PeriphCLKInitTypeDef rcc_ex_clk_init_struct;
DL3LD	1:1556bcaaf759	675
DL3LD	1:1556bcaaf759	676	HAL_RCCEx_GetPeriphCLKConfig(&rcc_ex_clk_init_struct);
DL3LD	1:1556bcaaf759	677
DL3LD	1:1556bcaaf759	678	/* Set the PLL configuration according to the audio frequency */
DL3LD	1:1556bcaaf759	679	if((AudioFreq == AUDIO_FREQUENCY_11K) \|\| (AudioFreq == AUDIO_FREQUENCY_22K) \|\| (AudioFreq == AUDIO_FREQUENCY_44K))
DL3LD	1:1556bcaaf759	680	{
DL3LD	1:1556bcaaf759	681	/* Configure PLLI2S prescalers */
DL3LD	1:1556bcaaf759	682	/* PLLI2S_VCO: VCO_429M
DL3LD	1:1556bcaaf759	683	I2S_CLK(first level) = PLLI2S_VCO/PLLI2SQ = 429/2 = 214.5 Mhz
DL3LD	1:1556bcaaf759	684	I2S_CLK_x = I2S_CLK(first level)/PLLI2SDIVQ = 214.5/19 = 11.289 Mhz */
DL3LD	1:1556bcaaf759	685	rcc_ex_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_SAI2;
DL3LD	1:1556bcaaf759	686	rcc_ex_clk_init_struct.Sai2ClockSelection = RCC_SAI2CLKSOURCE_PLLI2S;
DL3LD	1:1556bcaaf759	687	rcc_ex_clk_init_struct.PLLI2S.PLLI2SN = 429;
DL3LD	1:1556bcaaf759	688	rcc_ex_clk_init_struct.PLLI2S.PLLI2SQ = 2;
DL3LD	1:1556bcaaf759	689	rcc_ex_clk_init_struct.PLLI2SDivQ = 19;
DL3LD	1:1556bcaaf759	690
DL3LD	1:1556bcaaf759	691	HAL_RCCEx_PeriphCLKConfig(&rcc_ex_clk_init_struct);
DL3LD	1:1556bcaaf759	692
DL3LD	1:1556bcaaf759	693	}
DL3LD	1:1556bcaaf759	694	else /* AUDIO_FREQUENCY_8K, AUDIO_FREQUENCY_16K, AUDIO_FREQUENCY_48K), AUDIO_FREQUENCY_96K */
DL3LD	1:1556bcaaf759	695	{
DL3LD	1:1556bcaaf759	696	/* I2S clock config
DL3LD	1:1556bcaaf759	697	PLLI2S_VCO: VCO_344M
DL3LD	1:1556bcaaf759	698	I2S_CLK(first level) = PLLI2S_VCO/PLLI2SQ = 344/7 = 49.142 Mhz
DL3LD	1:1556bcaaf759	699	I2S_CLK_x = I2S_CLK(first level)/PLLI2SDIVQ = 49.142/1 = 49.142 Mhz */
DL3LD	1:1556bcaaf759	700	rcc_ex_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_SAI2;
DL3LD	1:1556bcaaf759	701	rcc_ex_clk_init_struct.Sai2ClockSelection = RCC_SAI2CLKSOURCE_PLLI2S;
DL3LD	1:1556bcaaf759	702	rcc_ex_clk_init_struct.PLLI2S.PLLI2SN = 344;
DL3LD	1:1556bcaaf759	703	rcc_ex_clk_init_struct.PLLI2S.PLLI2SQ = 7;
DL3LD	1:1556bcaaf759	704	rcc_ex_clk_init_struct.PLLI2SDivQ = 1;
DL3LD	1:1556bcaaf759	705
DL3LD	1:1556bcaaf759	706	HAL_RCCEx_PeriphCLKConfig(&rcc_ex_clk_init_struct);
DL3LD	1:1556bcaaf759	707	}
DL3LD	1:1556bcaaf759	708	}
DL3LD	1:1556bcaaf759	709
DL3LD	1:1556bcaaf759	710	/*******************************************************************************
DL3LD	1:1556bcaaf759	711	Static Functions
DL3LD	1:1556bcaaf759	712	*******************************************************************************/
DL3LD	1:1556bcaaf759	713
DL3LD	1:1556bcaaf759	714	/**
DL3LD	1:1556bcaaf759	715	* @brief Initializes the output Audio Codec audio interface (SAI).
DL3LD	1:1556bcaaf759	716	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
DL3LD	1:1556bcaaf759	717	* @note The default SlotActive configuration is set to CODEC_AUDIOFRAME_SLOT_0123
DL3LD	1:1556bcaaf759	718	* and user can update this configuration using
DL3LD	1:1556bcaaf759	719	* @retval None
DL3LD	1:1556bcaaf759	720	*/
DL3LD	1:1556bcaaf759	721	static void SAIx_Out_Init(uint32_t AudioFreq)
DL3LD	1:1556bcaaf759	722	{
DL3LD	1:1556bcaaf759	723	/* Initialize the haudio_out_sai Instance parameter */
DL3LD	1:1556bcaaf759	724	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
DL3LD	1:1556bcaaf759	725
DL3LD	1:1556bcaaf759	726	/* Disable SAI peripheral to allow access to SAI internal registers */
DL3LD	1:1556bcaaf759	727	__HAL_SAI_DISABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	728
DL3LD	1:1556bcaaf759	729	/* Configure SAI_Block_x
DL3LD	1:1556bcaaf759	730	LSBFirst: Disabled
DL3LD	1:1556bcaaf759	731	DataSize: 16 */
DL3LD	1:1556bcaaf759	732	haudio_out_sai.Init.AudioFrequency = AudioFreq;
DL3LD	1:1556bcaaf759	733	haudio_out_sai.Init.AudioMode = SAI_MODEMASTER_TX;
DL3LD	1:1556bcaaf759	734	haudio_out_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED;
DL3LD	1:1556bcaaf759	735	haudio_out_sai.Init.Protocol = SAI_FREE_PROTOCOL;
DL3LD	1:1556bcaaf759	736	haudio_out_sai.Init.DataSize = SAI_DATASIZE_16;
DL3LD	1:1556bcaaf759	737	haudio_out_sai.Init.FirstBit = SAI_FIRSTBIT_MSB;
DL3LD	1:1556bcaaf759	738	haudio_out_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE;
DL3LD	1:1556bcaaf759	739	haudio_out_sai.Init.Synchro = SAI_ASYNCHRONOUS;
DL3LD	1:1556bcaaf759	740	haudio_out_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLED;
DL3LD	1:1556bcaaf759	741	haudio_out_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF;
DL3LD	1:1556bcaaf759	742
DL3LD	1:1556bcaaf759	743	/* Configure SAI_Block_x Frame
DL3LD	1:1556bcaaf759	744	Frame Length: 64
DL3LD	1:1556bcaaf759	745	Frame active Length: 32
DL3LD	1:1556bcaaf759	746	FS Definition: Start frame + Channel Side identification
DL3LD	1:1556bcaaf759	747	FS Polarity: FS active Low
DL3LD	1:1556bcaaf759	748	FS Offset: FS asserted one bit before the first bit of slot 0 */
DL3LD	1:1556bcaaf759	749	haudio_out_sai.FrameInit.FrameLength = 64;
DL3LD	1:1556bcaaf759	750	haudio_out_sai.FrameInit.ActiveFrameLength = 32;
DL3LD	1:1556bcaaf759	751	haudio_out_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
DL3LD	1:1556bcaaf759	752	haudio_out_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
DL3LD	1:1556bcaaf759	753	haudio_out_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
DL3LD	1:1556bcaaf759	754
DL3LD	1:1556bcaaf759	755	/* Configure SAI Block_x Slot
DL3LD	1:1556bcaaf759	756	Slot First Bit Offset: 0
DL3LD	1:1556bcaaf759	757	Slot Size : 16
DL3LD	1:1556bcaaf759	758	Slot Number: 4
DL3LD	1:1556bcaaf759	759	Slot Active: All slot actives */
DL3LD	1:1556bcaaf759	760	haudio_out_sai.SlotInit.FirstBitOffset = 0;
DL3LD	1:1556bcaaf759	761	haudio_out_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE;
DL3LD	1:1556bcaaf759	762	haudio_out_sai.SlotInit.SlotNumber = 4;
DL3LD	1:1556bcaaf759	763	haudio_out_sai.SlotInit.SlotActive = CODEC_AUDIOFRAME_SLOT_0123;
DL3LD	1:1556bcaaf759	764
DL3LD	1:1556bcaaf759	765	HAL_SAI_Init(&haudio_out_sai);
DL3LD	1:1556bcaaf759	766
DL3LD	1:1556bcaaf759	767	/* Enable SAI peripheral to generate MCLK */
DL3LD	1:1556bcaaf759	768	__HAL_SAI_ENABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	769	}
DL3LD	1:1556bcaaf759	770
DL3LD	1:1556bcaaf759	771
DL3LD	1:1556bcaaf759	772
DL3LD	1:1556bcaaf759	773	/**
DL3LD	1:1556bcaaf759	774	* @brief Deinitializes the output Audio Codec audio interface (SAI).
DL3LD	1:1556bcaaf759	775	* @retval None
DL3LD	1:1556bcaaf759	776	*/
DL3LD	1:1556bcaaf759	777	static void SAIx_Out_DeInit(void)
DL3LD	1:1556bcaaf759	778	{
DL3LD	1:1556bcaaf759	779	/* Initialize the haudio_out_sai Instance parameter */
DL3LD	1:1556bcaaf759	780	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
DL3LD	1:1556bcaaf759	781
DL3LD	1:1556bcaaf759	782	/* Disable SAI peripheral */
DL3LD	1:1556bcaaf759	783	__HAL_SAI_DISABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	784
DL3LD	1:1556bcaaf759	785	HAL_SAI_DeInit(&haudio_out_sai);
DL3LD	1:1556bcaaf759	786	}
DL3LD	1:1556bcaaf759	787
DL3LD	1:1556bcaaf759	788	/**
DL3LD	1:1556bcaaf759	789	* @}
DL3LD	1:1556bcaaf759	790	*/
DL3LD	1:1556bcaaf759	791
DL3LD	1:1556bcaaf759	792	/** @defgroup STM32746G_DISCOVERY_AUDIO_Out_Private_Functions STM32746G_DISCOVERY_AUDIO Out Private Functions
DL3LD	1:1556bcaaf759	793	* @{
DL3LD	1:1556bcaaf759	794	*/
DL3LD	1:1556bcaaf759	795
DL3LD	1:1556bcaaf759	796	/**
DL3LD	1:1556bcaaf759	797	* @brief Initializes wave recording.
DL3LD	1:1556bcaaf759	798	* @param InputDevice: INPUT_DEVICE_DIGITAL_MICROPHONE_2 or INPUT_DEVICE_INPUT_LINE_1
DL3LD	1:1556bcaaf759	799	* @param Volume: Initial volume level (in range 0(Mute)..80(+0dB)..100(+17.625dB))
DL3LD	1:1556bcaaf759	800	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
DL3LD	1:1556bcaaf759	801	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	802	*/
DL3LD	1:1556bcaaf759	803	uint8_t BSP_AUDIO_IN_Init(uint16_t InputDevice, uint8_t Volume, uint32_t AudioFreq)
DL3LD	1:1556bcaaf759	804	{
DL3LD	1:1556bcaaf759	805	uint8_t ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	806	uint32_t deviceid = 0x00;
DL3LD	1:1556bcaaf759	807	uint32_t slot_active;
DL3LD	1:1556bcaaf759	808
DL3LD	1:1556bcaaf759	809	if ((InputDevice != INPUT_DEVICE_INPUT_LINE_1) && /* Only INPUT_LINE_1 and MICROPHONE_2 inputs supported */
DL3LD	1:1556bcaaf759	810	(InputDevice != INPUT_DEVICE_DIGITAL_MICROPHONE_2))
DL3LD	1:1556bcaaf759	811	{
DL3LD	1:1556bcaaf759	812	ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	813	}
DL3LD	1:1556bcaaf759	814	else
DL3LD	1:1556bcaaf759	815	{
DL3LD	1:1556bcaaf759	816	/* Disable SAI */
DL3LD	1:1556bcaaf759	817	SAIx_In_DeInit();
DL3LD	1:1556bcaaf759	818
DL3LD	1:1556bcaaf759	819	/* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */
DL3LD	1:1556bcaaf759	820	BSP_AUDIO_OUT_ClockConfig(&haudio_in_sai, AudioFreq, NULL); /* Clock config is shared between AUDIO IN and OUT */
DL3LD	1:1556bcaaf759	821
DL3LD	1:1556bcaaf759	822	/* SAI data transfer preparation:
DL3LD	1:1556bcaaf759	823	Prepare the Media to be used for the audio transfer from SAI peripheral to memory */
DL3LD	1:1556bcaaf759	824	haudio_in_sai.Instance = AUDIO_IN_SAIx;
DL3LD	1:1556bcaaf759	825	if(HAL_SAI_GetState(&haudio_in_sai) == HAL_SAI_STATE_RESET)
DL3LD	1:1556bcaaf759	826	{
DL3LD	1:1556bcaaf759	827	/* Init the SAI MSP: this __weak function can be redefined by the application*/
DL3LD	1:1556bcaaf759	828	BSP_AUDIO_OUT_MspInit(&haudio_in_sai, NULL); /* Initialize GPIOs for SAI2 block A Master signals */
DL3LD	1:1556bcaaf759	829	BSP_AUDIO_IN_MspInit(&haudio_in_sai, NULL);
DL3LD	1:1556bcaaf759	830	}
DL3LD	1:1556bcaaf759	831
DL3LD	1:1556bcaaf759	832	/* Configure SAI in master RX mode :
DL3LD	1:1556bcaaf759	833	* - SAI2_block_A in master RX mode
DL3LD	1:1556bcaaf759	834	* - SAI2_block_B in slave RX mode synchronous from SAI2_block_A
DL3LD	1:1556bcaaf759	835	*/
DL3LD	1:1556bcaaf759	836	if (InputDevice == INPUT_DEVICE_DIGITAL_MICROPHONE_2)
DL3LD	1:1556bcaaf759	837	{
DL3LD	1:1556bcaaf759	838	slot_active = CODEC_AUDIOFRAME_SLOT_13;
DL3LD	1:1556bcaaf759	839	}
DL3LD	1:1556bcaaf759	840	else
DL3LD	1:1556bcaaf759	841	{
DL3LD	1:1556bcaaf759	842	slot_active = CODEC_AUDIOFRAME_SLOT_02;
DL3LD	1:1556bcaaf759	843	}
DL3LD	1:1556bcaaf759	844	SAIx_In_Init(SAI_MODEMASTER_RX, slot_active, AudioFreq);
DL3LD	1:1556bcaaf759	845
DL3LD	1:1556bcaaf759	846	/* wm8994 codec initialization */
DL3LD	1:1556bcaaf759	847	deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS);
DL3LD	1:1556bcaaf759	848
DL3LD	1:1556bcaaf759	849	if((deviceid) == WM8994_ID)
DL3LD	1:1556bcaaf759	850	{
DL3LD	1:1556bcaaf759	851	/* Reset the Codec Registers */
DL3LD	1:1556bcaaf759	852	wm8994_drv.Reset(AUDIO_I2C_ADDRESS);
DL3LD	1:1556bcaaf759	853	/* Initialize the audio driver structure */
DL3LD	1:1556bcaaf759	854	audio_drv = &wm8994_drv;
DL3LD	1:1556bcaaf759	855	ret = AUDIO_OK;
DL3LD	1:1556bcaaf759	856	}
DL3LD	1:1556bcaaf759	857	else
DL3LD	1:1556bcaaf759	858	{
DL3LD	1:1556bcaaf759	859	ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	860	}
DL3LD	1:1556bcaaf759	861
DL3LD	1:1556bcaaf759	862	if(ret == AUDIO_OK)
DL3LD	1:1556bcaaf759	863	{
DL3LD	1:1556bcaaf759	864	/* Initialize the codec internal registers */
DL3LD	1:1556bcaaf759	865	audio_drv->Init(AUDIO_I2C_ADDRESS, InputDevice, Volume, AudioFreq);
DL3LD	1:1556bcaaf759	866	}
DL3LD	1:1556bcaaf759	867	}
DL3LD	1:1556bcaaf759	868	return ret;
DL3LD	1:1556bcaaf759	869	}
DL3LD	1:1556bcaaf759	870
DL3LD	1:1556bcaaf759	871	/**
DL3LD	1:1556bcaaf759	872	* @brief Initializes wave recording and playback in parallel.
DL3LD	1:1556bcaaf759	873	* @param InputDevice: INPUT_DEVICE_DIGITAL_MICROPHONE_2
DL3LD	1:1556bcaaf759	874	* @param OutputDevice: OUTPUT_DEVICE_SPEAKER, OUTPUT_DEVICE_HEADPHONE,
DL3LD	1:1556bcaaf759	875	* or OUTPUT_DEVICE_BOTH.
DL3LD	1:1556bcaaf759	876	* @param Volume: Initial volume level (in range 0(Mute)..80(+0dB)..100(+17.625dB))
DL3LD	1:1556bcaaf759	877	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
DL3LD	1:1556bcaaf759	878	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	879	*/
DL3LD	1:1556bcaaf759	880	uint8_t BSP_AUDIO_IN_OUT_Init(uint16_t InputDevice, uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq)
DL3LD	1:1556bcaaf759	881	{
DL3LD	1:1556bcaaf759	882	uint8_t ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	883	uint32_t deviceid = 0x00;
DL3LD	1:1556bcaaf759	884	uint32_t slot_active;
DL3LD	1:1556bcaaf759	885
DL3LD	1:1556bcaaf759	886	if (InputDevice != INPUT_DEVICE_DIGITAL_MICROPHONE_2) /* Only MICROPHONE_2 input supported */
DL3LD	1:1556bcaaf759	887	{
DL3LD	1:1556bcaaf759	888	ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	889	}
DL3LD	1:1556bcaaf759	890	else
DL3LD	1:1556bcaaf759	891	{
DL3LD	1:1556bcaaf759	892	/* Disable SAI */
DL3LD	1:1556bcaaf759	893	SAIx_In_DeInit();
DL3LD	1:1556bcaaf759	894	SAIx_Out_DeInit();
DL3LD	1:1556bcaaf759	895
DL3LD	1:1556bcaaf759	896	/* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */
DL3LD	1:1556bcaaf759	897	BSP_AUDIO_OUT_ClockConfig(&haudio_in_sai, AudioFreq, NULL); /* Clock config is shared between AUDIO IN and OUT */
DL3LD	1:1556bcaaf759	898
DL3LD	1:1556bcaaf759	899	/* SAI data transfer preparation:
DL3LD	1:1556bcaaf759	900	Prepare the Media to be used for the audio transfer from SAI peripheral to memory */
DL3LD	1:1556bcaaf759	901	haudio_in_sai.Instance = AUDIO_IN_SAIx;
DL3LD	1:1556bcaaf759	902	if(HAL_SAI_GetState(&haudio_in_sai) == HAL_SAI_STATE_RESET)
DL3LD	1:1556bcaaf759	903	{
DL3LD	1:1556bcaaf759	904	/* Init the SAI MSP: this __weak function can be redefined by the application*/
DL3LD	1:1556bcaaf759	905	BSP_AUDIO_IN_MspInit(&haudio_in_sai, NULL);
DL3LD	1:1556bcaaf759	906	}
DL3LD	1:1556bcaaf759	907
DL3LD	1:1556bcaaf759	908	/* SAI data transfer preparation:
DL3LD	1:1556bcaaf759	909	Prepare the Media to be used for the audio transfer from memory to SAI peripheral */
DL3LD	1:1556bcaaf759	910	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
DL3LD	1:1556bcaaf759	911	if(HAL_SAI_GetState(&haudio_out_sai) == HAL_SAI_STATE_RESET)
DL3LD	1:1556bcaaf759	912	{
DL3LD	1:1556bcaaf759	913	/* Init the SAI MSP: this __weak function can be redefined by the application*/
DL3LD	1:1556bcaaf759	914	BSP_AUDIO_OUT_MspInit(&haudio_out_sai, NULL);
DL3LD	1:1556bcaaf759	915	}
DL3LD	1:1556bcaaf759	916
DL3LD	1:1556bcaaf759	917	/* Configure SAI in master mode :
DL3LD	1:1556bcaaf759	918	* - SAI2_block_A in master TX mode
DL3LD	1:1556bcaaf759	919	* - SAI2_block_B in slave RX mode synchronous from SAI2_block_A
DL3LD	1:1556bcaaf759	920	*/
DL3LD	1:1556bcaaf759	921	if (InputDevice == INPUT_DEVICE_DIGITAL_MICROPHONE_2)
DL3LD	1:1556bcaaf759	922	{
DL3LD	1:1556bcaaf759	923	slot_active = CODEC_AUDIOFRAME_SLOT_13;
DL3LD	1:1556bcaaf759	924	}
DL3LD	1:1556bcaaf759	925	else
DL3LD	1:1556bcaaf759	926	{
DL3LD	1:1556bcaaf759	927	slot_active = CODEC_AUDIOFRAME_SLOT_02;
DL3LD	1:1556bcaaf759	928	}
DL3LD	1:1556bcaaf759	929	SAIx_In_Init(SAI_MODEMASTER_TX, slot_active, AudioFreq);
DL3LD	1:1556bcaaf759	930
DL3LD	1:1556bcaaf759	931	/* wm8994 codec initialization */
DL3LD	1:1556bcaaf759	932	deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS);
DL3LD	1:1556bcaaf759	933
DL3LD	1:1556bcaaf759	934	if((deviceid) == WM8994_ID)
DL3LD	1:1556bcaaf759	935	{
DL3LD	1:1556bcaaf759	936	/* Reset the Codec Registers */
DL3LD	1:1556bcaaf759	937	wm8994_drv.Reset(AUDIO_I2C_ADDRESS);
DL3LD	1:1556bcaaf759	938	/* Initialize the audio driver structure */
DL3LD	1:1556bcaaf759	939	audio_drv = &wm8994_drv;
DL3LD	1:1556bcaaf759	940	ret = AUDIO_OK;
DL3LD	1:1556bcaaf759	941	}
DL3LD	1:1556bcaaf759	942	else
DL3LD	1:1556bcaaf759	943	{
DL3LD	1:1556bcaaf759	944	ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	945	}
DL3LD	1:1556bcaaf759	946
DL3LD	1:1556bcaaf759	947	if(ret == AUDIO_OK)
DL3LD	1:1556bcaaf759	948	{
DL3LD	1:1556bcaaf759	949	/* Initialize the codec internal registers */
DL3LD	1:1556bcaaf759	950	audio_drv->Init(AUDIO_I2C_ADDRESS, InputDevice \| OutputDevice, Volume, AudioFreq);
DL3LD	1:1556bcaaf759	951	}
DL3LD	1:1556bcaaf759	952	}
DL3LD	1:1556bcaaf759	953	return ret;
DL3LD	1:1556bcaaf759	954	}
DL3LD	1:1556bcaaf759	955
DL3LD	1:1556bcaaf759	956
DL3LD	1:1556bcaaf759	957	/**
DL3LD	1:1556bcaaf759	958	* @brief Starts audio recording.
DL3LD	1:1556bcaaf759	959	* @param pbuf: Main buffer pointer for the recorded data storing
DL3LD	1:1556bcaaf759	960	* @param size: size of the recorded buffer in number of elements (typically number of half-words)
DL3LD	1:1556bcaaf759	961	* Be careful that it is not the same unit than BSP_AUDIO_OUT_Play function
DL3LD	1:1556bcaaf759	962	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	963	*/
DL3LD	1:1556bcaaf759	964	uint8_t BSP_AUDIO_IN_Record(uint16_t* pbuf, uint32_t size)
DL3LD	1:1556bcaaf759	965	{
DL3LD	1:1556bcaaf759	966	uint32_t ret = AUDIO_ERROR;
DL3LD	1:1556bcaaf759	967
DL3LD	1:1556bcaaf759	968	/* Start the process receive DMA */
DL3LD	1:1556bcaaf759	969	HAL_SAI_Receive_DMA(&haudio_in_sai, (uint8_t*)pbuf, size);
DL3LD	1:1556bcaaf759	970
DL3LD	1:1556bcaaf759	971	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	972	ret = AUDIO_OK;
DL3LD	1:1556bcaaf759	973
DL3LD	1:1556bcaaf759	974	return ret;
DL3LD	1:1556bcaaf759	975	}
DL3LD	1:1556bcaaf759	976
DL3LD	1:1556bcaaf759	977	/**
DL3LD	1:1556bcaaf759	978	* @brief Stops audio recording.
DL3LD	1:1556bcaaf759	979	* @param Option: could be one of the following parameters
DL3LD	1:1556bcaaf759	980	* - CODEC_PDWN_SW: for software power off (by writing registers).
DL3LD	1:1556bcaaf759	981	* Then no need to reconfigure the Codec after power on.
DL3LD	1:1556bcaaf759	982	* - CODEC_PDWN_HW: completely shut down the codec (physically).
DL3LD	1:1556bcaaf759	983	* Then need to reconfigure the Codec after power on.
DL3LD	1:1556bcaaf759	984	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	985	*/
DL3LD	1:1556bcaaf759	986	uint8_t BSP_AUDIO_IN_Stop(uint32_t Option)
DL3LD	1:1556bcaaf759	987	{
DL3LD	1:1556bcaaf759	988	/* Call the Media layer stop function */
DL3LD	1:1556bcaaf759	989	HAL_SAI_DMAStop(&haudio_in_sai);
DL3LD	1:1556bcaaf759	990
DL3LD	1:1556bcaaf759	991	/* Call Audio Codec Stop function */
DL3LD	1:1556bcaaf759	992	if(audio_drv->Stop(AUDIO_I2C_ADDRESS, Option) != 0)
DL3LD	1:1556bcaaf759	993	{
DL3LD	1:1556bcaaf759	994	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	995	}
DL3LD	1:1556bcaaf759	996	else
DL3LD	1:1556bcaaf759	997	{
DL3LD	1:1556bcaaf759	998	if(Option == CODEC_PDWN_HW)
DL3LD	1:1556bcaaf759	999	{
DL3LD	1:1556bcaaf759	1000	/* Wait at least 100us */
DL3LD	1:1556bcaaf759	1001	HAL_Delay(1);
DL3LD	1:1556bcaaf759	1002	}
DL3LD	1:1556bcaaf759	1003	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	1004	return AUDIO_OK;
DL3LD	1:1556bcaaf759	1005	}
DL3LD	1:1556bcaaf759	1006	}
DL3LD	1:1556bcaaf759	1007
DL3LD	1:1556bcaaf759	1008	/**
DL3LD	1:1556bcaaf759	1009	* @brief Pauses the audio file stream.
DL3LD	1:1556bcaaf759	1010	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	1011	*/
DL3LD	1:1556bcaaf759	1012	uint8_t BSP_AUDIO_IN_Pause(void)
DL3LD	1:1556bcaaf759	1013	{
DL3LD	1:1556bcaaf759	1014	/* Call the Media layer pause function */
DL3LD	1:1556bcaaf759	1015	HAL_SAI_DMAPause(&haudio_in_sai);
DL3LD	1:1556bcaaf759	1016	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	1017	return AUDIO_OK;
DL3LD	1:1556bcaaf759	1018	}
DL3LD	1:1556bcaaf759	1019
DL3LD	1:1556bcaaf759	1020	/**
DL3LD	1:1556bcaaf759	1021	* @brief Resumes the audio file stream.
DL3LD	1:1556bcaaf759	1022	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	1023	*/
DL3LD	1:1556bcaaf759	1024	uint8_t BSP_AUDIO_IN_Resume(void)
DL3LD	1:1556bcaaf759	1025	{
DL3LD	1:1556bcaaf759	1026	/* Call the Media layer pause/resume function */
DL3LD	1:1556bcaaf759	1027	HAL_SAI_DMAResume(&haudio_in_sai);
DL3LD	1:1556bcaaf759	1028	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	1029	return AUDIO_OK;
DL3LD	1:1556bcaaf759	1030	}
DL3LD	1:1556bcaaf759	1031
DL3LD	1:1556bcaaf759	1032	/**
DL3LD	1:1556bcaaf759	1033	* @brief Controls the audio in volume level.
DL3LD	1:1556bcaaf759	1034	* @param Volume: Volume level in range 0(Mute)..80(+0dB)..100(+17.625dB)
DL3LD	1:1556bcaaf759	1035	* @retval AUDIO_OK if correct communication, else wrong communication
DL3LD	1:1556bcaaf759	1036	*/
DL3LD	1:1556bcaaf759	1037	uint8_t BSP_AUDIO_IN_SetVolume(uint8_t Volume)
DL3LD	1:1556bcaaf759	1038	{
DL3LD	1:1556bcaaf759	1039	/* Call the codec volume control function with converted volume value */
DL3LD	1:1556bcaaf759	1040	if(audio_drv->SetVolume(AUDIO_I2C_ADDRESS, Volume) != 0)
DL3LD	1:1556bcaaf759	1041	{
DL3LD	1:1556bcaaf759	1042	return AUDIO_ERROR;
DL3LD	1:1556bcaaf759	1043	}
DL3LD	1:1556bcaaf759	1044	else
DL3LD	1:1556bcaaf759	1045	{
DL3LD	1:1556bcaaf759	1046	/* Set the Global variable AudioInVolume */
DL3LD	1:1556bcaaf759	1047	AudioInVolume = Volume;
DL3LD	1:1556bcaaf759	1048	/* Return AUDIO_OK when all operations are correctly done */
DL3LD	1:1556bcaaf759	1049	return AUDIO_OK;
DL3LD	1:1556bcaaf759	1050	}
DL3LD	1:1556bcaaf759	1051	}
DL3LD	1:1556bcaaf759	1052
DL3LD	1:1556bcaaf759	1053	/**
DL3LD	1:1556bcaaf759	1054	* @brief Deinit the audio IN peripherals.
DL3LD	1:1556bcaaf759	1055	* @retval None
DL3LD	1:1556bcaaf759	1056	*/
DL3LD	1:1556bcaaf759	1057	void BSP_AUDIO_IN_DeInit(void)
DL3LD	1:1556bcaaf759	1058	{
DL3LD	1:1556bcaaf759	1059	SAIx_In_DeInit();
DL3LD	1:1556bcaaf759	1060	/* DeInit the SAI MSP : this __weak function can be rewritten by the application */
DL3LD	1:1556bcaaf759	1061	BSP_AUDIO_IN_MspDeInit(&haudio_in_sai, NULL);
DL3LD	1:1556bcaaf759	1062	}
DL3LD	1:1556bcaaf759	1063
DL3LD	1:1556bcaaf759	1064	/**
DL3LD	1:1556bcaaf759	1065	* @brief Rx Transfer completed callbacks.
DL3LD	1:1556bcaaf759	1066	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	1067	* @retval None
DL3LD	1:1556bcaaf759	1068	*/
DL3LD	1:1556bcaaf759	1069	void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hsai)
DL3LD	1:1556bcaaf759	1070	{
DL3LD	1:1556bcaaf759	1071	/* Call the record update function to get the next buffer to fill and its size (size is ignored) */
DL3LD	1:1556bcaaf759	1072	BSP_AUDIO_IN_TransferComplete_CallBack();
DL3LD	1:1556bcaaf759	1073	}
DL3LD	1:1556bcaaf759	1074
DL3LD	1:1556bcaaf759	1075	/**
DL3LD	1:1556bcaaf759	1076	* @brief Rx Half Transfer completed callbacks.
DL3LD	1:1556bcaaf759	1077	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	1078	* @retval None
DL3LD	1:1556bcaaf759	1079	*/
DL3LD	1:1556bcaaf759	1080	void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hsai)
DL3LD	1:1556bcaaf759	1081	{
DL3LD	1:1556bcaaf759	1082	/* Manage the remaining file size and new address offset: This function
DL3LD	1:1556bcaaf759	1083	should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */
DL3LD	1:1556bcaaf759	1084	BSP_AUDIO_IN_HalfTransfer_CallBack();
DL3LD	1:1556bcaaf759	1085	}
DL3LD	1:1556bcaaf759	1086
DL3LD	1:1556bcaaf759	1087	/**
DL3LD	1:1556bcaaf759	1088	* @brief User callback when record buffer is filled.
DL3LD	1:1556bcaaf759	1089	* @retval None
DL3LD	1:1556bcaaf759	1090	*/
DL3LD	1:1556bcaaf759	1091	__weak void BSP_AUDIO_IN_TransferComplete_CallBack(void)
DL3LD	1:1556bcaaf759	1092	{
DL3LD	1:1556bcaaf759	1093	/* This function should be implemented by the user application.
DL3LD	1:1556bcaaf759	1094	It is called into this driver when the current buffer is filled
DL3LD	1:1556bcaaf759	1095	to prepare the next buffer pointer and its size. */
DL3LD	1:1556bcaaf759	1096	}
DL3LD	1:1556bcaaf759	1097
DL3LD	1:1556bcaaf759	1098	/**
DL3LD	1:1556bcaaf759	1099	* @brief Manages the DMA Half Transfer complete event.
DL3LD	1:1556bcaaf759	1100	* @retval None
DL3LD	1:1556bcaaf759	1101	*/
DL3LD	1:1556bcaaf759	1102	__weak void BSP_AUDIO_IN_HalfTransfer_CallBack(void)
DL3LD	1:1556bcaaf759	1103	{
DL3LD	1:1556bcaaf759	1104	/* This function should be implemented by the user application.
DL3LD	1:1556bcaaf759	1105	It is called into this driver when the current buffer is filled
DL3LD	1:1556bcaaf759	1106	to prepare the next buffer pointer and its size. */
DL3LD	1:1556bcaaf759	1107	}
DL3LD	1:1556bcaaf759	1108
DL3LD	1:1556bcaaf759	1109	/**
DL3LD	1:1556bcaaf759	1110	* @brief Audio IN Error callback function.
DL3LD	1:1556bcaaf759	1111	* @retval None
DL3LD	1:1556bcaaf759	1112	*/
DL3LD	1:1556bcaaf759	1113	__weak void BSP_AUDIO_IN_Error_CallBack(void)
DL3LD	1:1556bcaaf759	1114	{
DL3LD	1:1556bcaaf759	1115	/* This function is called when an Interrupt due to transfer error on or peripheral
DL3LD	1:1556bcaaf759	1116	error occurs. */
DL3LD	1:1556bcaaf759	1117	}
DL3LD	1:1556bcaaf759	1118
DL3LD	1:1556bcaaf759	1119	/**
DL3LD	1:1556bcaaf759	1120	* @brief Initializes BSP_AUDIO_IN MSP.
DL3LD	1:1556bcaaf759	1121	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	1122	* @param Params
DL3LD	1:1556bcaaf759	1123	* @retval None
DL3LD	1:1556bcaaf759	1124	*/
DL3LD	1:1556bcaaf759	1125	__weak void BSP_AUDIO_IN_MspInit(SAI_HandleTypeDef hsai, void Params)
DL3LD	1:1556bcaaf759	1126	{
DL3LD	1:1556bcaaf759	1127	static DMA_HandleTypeDef hdma_sai_rx;
DL3LD	1:1556bcaaf759	1128	GPIO_InitTypeDef gpio_init_structure;
DL3LD	1:1556bcaaf759	1129
DL3LD	1:1556bcaaf759	1130	/* Enable SAI clock */
DL3LD	1:1556bcaaf759	1131	AUDIO_IN_SAIx_CLK_ENABLE();
DL3LD	1:1556bcaaf759	1132
DL3LD	1:1556bcaaf759	1133	/* Enable SD GPIO clock */
DL3LD	1:1556bcaaf759	1134	AUDIO_IN_SAIx_SD_ENABLE();
DL3LD	1:1556bcaaf759	1135	/* CODEC_SAI pin configuration: SD pin */
DL3LD	1:1556bcaaf759	1136	gpio_init_structure.Pin = AUDIO_IN_SAIx_SD_PIN;
DL3LD	1:1556bcaaf759	1137	gpio_init_structure.Mode = GPIO_MODE_AF_PP;
DL3LD	1:1556bcaaf759	1138	gpio_init_structure.Pull = GPIO_NOPULL;
DL3LD	1:1556bcaaf759	1139	gpio_init_structure.Speed = GPIO_SPEED_FAST;
DL3LD	1:1556bcaaf759	1140	gpio_init_structure.Alternate = AUDIO_IN_SAIx_SD_AF;
DL3LD	1:1556bcaaf759	1141	HAL_GPIO_Init(AUDIO_IN_SAIx_SD_GPIO_PORT, &gpio_init_structure);
DL3LD	1:1556bcaaf759	1142
DL3LD	1:1556bcaaf759	1143	/* Enable Audio INT GPIO clock */
DL3LD	1:1556bcaaf759	1144	AUDIO_IN_INT_GPIO_ENABLE();
DL3LD	1:1556bcaaf759	1145	/* Audio INT pin configuration: input */
DL3LD	1:1556bcaaf759	1146	gpio_init_structure.Pin = AUDIO_IN_INT_GPIO_PIN;
DL3LD	1:1556bcaaf759	1147	gpio_init_structure.Mode = GPIO_MODE_INPUT;
DL3LD	1:1556bcaaf759	1148	gpio_init_structure.Pull = GPIO_NOPULL;
DL3LD	1:1556bcaaf759	1149	gpio_init_structure.Speed = GPIO_SPEED_FAST;
DL3LD	1:1556bcaaf759	1150	HAL_GPIO_Init(AUDIO_IN_INT_GPIO_PORT, &gpio_init_structure);
DL3LD	1:1556bcaaf759	1151
DL3LD	1:1556bcaaf759	1152	/* Enable the DMA clock */
DL3LD	1:1556bcaaf759	1153	AUDIO_IN_SAIx_DMAx_CLK_ENABLE();
DL3LD	1:1556bcaaf759	1154
DL3LD	1:1556bcaaf759	1155	if(hsai->Instance == AUDIO_IN_SAIx)
DL3LD	1:1556bcaaf759	1156	{
DL3LD	1:1556bcaaf759	1157	/* Configure the hdma_sai_rx handle parameters */
DL3LD	1:1556bcaaf759	1158	hdma_sai_rx.Init.Channel = AUDIO_IN_SAIx_DMAx_CHANNEL;
DL3LD	1:1556bcaaf759	1159	hdma_sai_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
DL3LD	1:1556bcaaf759	1160	hdma_sai_rx.Init.PeriphInc = DMA_PINC_DISABLE;
DL3LD	1:1556bcaaf759	1161	hdma_sai_rx.Init.MemInc = DMA_MINC_ENABLE;
DL3LD	1:1556bcaaf759	1162	hdma_sai_rx.Init.PeriphDataAlignment = AUDIO_IN_SAIx_DMAx_PERIPH_DATA_SIZE;
DL3LD	1:1556bcaaf759	1163	hdma_sai_rx.Init.MemDataAlignment = AUDIO_IN_SAIx_DMAx_MEM_DATA_SIZE;
DL3LD	1:1556bcaaf759	1164	hdma_sai_rx.Init.Mode = DMA_CIRCULAR;
DL3LD	1:1556bcaaf759	1165	hdma_sai_rx.Init.Priority = DMA_PRIORITY_HIGH;
DL3LD	1:1556bcaaf759	1166	hdma_sai_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
DL3LD	1:1556bcaaf759	1167	hdma_sai_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
DL3LD	1:1556bcaaf759	1168	hdma_sai_rx.Init.MemBurst = DMA_MBURST_SINGLE;
DL3LD	1:1556bcaaf759	1169	hdma_sai_rx.Init.PeriphBurst = DMA_MBURST_SINGLE;
DL3LD	1:1556bcaaf759	1170
DL3LD	1:1556bcaaf759	1171	hdma_sai_rx.Instance = AUDIO_IN_SAIx_DMAx_STREAM;
DL3LD	1:1556bcaaf759	1172
DL3LD	1:1556bcaaf759	1173	/* Associate the DMA handle */
DL3LD	1:1556bcaaf759	1174	__HAL_LINKDMA(hsai, hdmarx, hdma_sai_rx);
DL3LD	1:1556bcaaf759	1175
DL3LD	1:1556bcaaf759	1176	/* Deinitialize the Stream for new transfer */
DL3LD	1:1556bcaaf759	1177	HAL_DMA_DeInit(&hdma_sai_rx);
DL3LD	1:1556bcaaf759	1178
DL3LD	1:1556bcaaf759	1179	/* Configure the DMA Stream */
DL3LD	1:1556bcaaf759	1180	HAL_DMA_Init(&hdma_sai_rx);
DL3LD	1:1556bcaaf759	1181	}
DL3LD	1:1556bcaaf759	1182
DL3LD	1:1556bcaaf759	1183	/* SAI DMA IRQ Channel configuration */
DL3LD	1:1556bcaaf759	1184	#if ( __MBED__ == 1)
DL3LD	1:1556bcaaf759	1185	IRQn_Type irqn = (IRQn_Type)(AUDIO_IN_SAIx_DMAx_IRQ);
DL3LD	1:1556bcaaf759	1186	NVIC_ClearPendingIRQ(irqn);
DL3LD	1:1556bcaaf759	1187	NVIC_DisableIRQ(irqn);
DL3LD	1:1556bcaaf759	1188	NVIC_SetPriority(irqn, AUDIO_IN_IRQ_PREPRIO);
DL3LD	1:1556bcaaf759	1189	NVIC_SetVector(irqn, (uint32_t)AUDIO_IN_SAIx_DMAx_IRQHandler);
DL3LD	1:1556bcaaf759	1190	NVIC_EnableIRQ(irqn);
DL3LD	1:1556bcaaf759	1191	#else
DL3LD	1:1556bcaaf759	1192	HAL_NVIC_SetPriority(AUDIO_IN_SAIx_DMAx_IRQ, AUDIO_IN_IRQ_PREPRIO, 0);
DL3LD	1:1556bcaaf759	1193	HAL_NVIC_EnableIRQ(AUDIO_IN_SAIx_DMAx_IRQ);
DL3LD	1:1556bcaaf759	1194	#endif
DL3LD	1:1556bcaaf759	1195
DL3LD	1:1556bcaaf759	1196	/* Audio INT IRQ Channel configuration */
DL3LD	1:1556bcaaf759	1197	#if ( __MBED__ == 1)
DL3LD	1:1556bcaaf759	1198	irqn = (IRQn_Type)(AUDIO_IN_INT_IRQ);
DL3LD	1:1556bcaaf759	1199	NVIC_ClearPendingIRQ(irqn);
DL3LD	1:1556bcaaf759	1200	NVIC_DisableIRQ(irqn);
DL3LD	1:1556bcaaf759	1201	NVIC_SetPriority(irqn, AUDIO_IN_IRQ_PREPRIO);
DL3LD	1:1556bcaaf759	1202	NVIC_SetVector(irqn, (uint32_t)AUDIO_IN_INT_IRQHandler);
DL3LD	1:1556bcaaf759	1203	NVIC_EnableIRQ(irqn);
DL3LD	1:1556bcaaf759	1204	#else
DL3LD	1:1556bcaaf759	1205	HAL_NVIC_SetPriority(AUDIO_IN_INT_IRQ, AUDIO_IN_IRQ_PREPRIO, 0);
DL3LD	1:1556bcaaf759	1206	HAL_NVIC_EnableIRQ(AUDIO_IN_INT_IRQ);
DL3LD	1:1556bcaaf759	1207	#endif
DL3LD	1:1556bcaaf759	1208	}
DL3LD	1:1556bcaaf759	1209
DL3LD	1:1556bcaaf759	1210	/**
DL3LD	1:1556bcaaf759	1211	* @brief DeInitializes BSP_AUDIO_IN MSP.
DL3LD	1:1556bcaaf759	1212	* @param hsai: SAI handle
DL3LD	1:1556bcaaf759	1213	* @param Params
DL3LD	1:1556bcaaf759	1214	* @retval None
DL3LD	1:1556bcaaf759	1215	*/
DL3LD	1:1556bcaaf759	1216	__weak void BSP_AUDIO_IN_MspDeInit(SAI_HandleTypeDef hsai, void Params)
DL3LD	1:1556bcaaf759	1217	{
DL3LD	1:1556bcaaf759	1218	GPIO_InitTypeDef gpio_init_structure;
DL3LD	1:1556bcaaf759	1219
DL3LD	1:1556bcaaf759	1220	static DMA_HandleTypeDef hdma_sai_rx;
DL3LD	1:1556bcaaf759	1221
DL3LD	1:1556bcaaf759	1222	/* SAI IN DMA IRQ Channel deactivation */
DL3LD	1:1556bcaaf759	1223	HAL_NVIC_DisableIRQ(AUDIO_IN_SAIx_DMAx_IRQ);
DL3LD	1:1556bcaaf759	1224
DL3LD	1:1556bcaaf759	1225	if(hsai->Instance == AUDIO_IN_SAIx)
DL3LD	1:1556bcaaf759	1226	{
DL3LD	1:1556bcaaf759	1227	/* Deinitialize the Stream for new transfer */
DL3LD	1:1556bcaaf759	1228	HAL_DMA_DeInit(&hdma_sai_rx);
DL3LD	1:1556bcaaf759	1229	}
DL3LD	1:1556bcaaf759	1230
DL3LD	1:1556bcaaf759	1231	/* Disable SAI block */
DL3LD	1:1556bcaaf759	1232	__HAL_SAI_DISABLE(hsai);
DL3LD	1:1556bcaaf759	1233
DL3LD	1:1556bcaaf759	1234	/* Disable pin: SD pin */
DL3LD	1:1556bcaaf759	1235	gpio_init_structure.Pin = AUDIO_IN_SAIx_SD_PIN;
DL3LD	1:1556bcaaf759	1236	HAL_GPIO_DeInit(AUDIO_IN_SAIx_SD_GPIO_PORT, gpio_init_structure.Pin);
DL3LD	1:1556bcaaf759	1237
DL3LD	1:1556bcaaf759	1238	/* Disable SAI clock */
DL3LD	1:1556bcaaf759	1239	AUDIO_IN_SAIx_CLK_DISABLE();
DL3LD	1:1556bcaaf759	1240
DL3LD	1:1556bcaaf759	1241	/* GPIO pins clock and DMA clock can be shut down in the application
DL3LD	1:1556bcaaf759	1242	by surcharging this __weak function */
DL3LD	1:1556bcaaf759	1243	}
DL3LD	1:1556bcaaf759	1244
DL3LD	1:1556bcaaf759	1245
DL3LD	1:1556bcaaf759	1246	/*******************************************************************************
DL3LD	1:1556bcaaf759	1247	Static Functions
DL3LD	1:1556bcaaf759	1248	*******************************************************************************/
DL3LD	1:1556bcaaf759	1249
DL3LD	1:1556bcaaf759	1250	/**
DL3LD	1:1556bcaaf759	1251	* @brief Initializes the input Audio Codec audio interface (SAI).
DL3LD	1:1556bcaaf759	1252	* @param SaiOutMode: SAI_MODEMASTER_TX (for record and playback in parallel)
DL3LD	1:1556bcaaf759	1253	* or SAI_MODEMASTER_RX (for record only).
DL3LD	1:1556bcaaf759	1254	* @param SlotActive: CODEC_AUDIOFRAME_SLOT_02 or CODEC_AUDIOFRAME_SLOT_13
DL3LD	1:1556bcaaf759	1255	* @param AudioFreq: Audio frequency to be configured for the SAI peripheral.
DL3LD	1:1556bcaaf759	1256	* @retval None
DL3LD	1:1556bcaaf759	1257	*/
DL3LD	1:1556bcaaf759	1258	static void SAIx_In_Init(uint32_t SaiOutMode, uint32_t SlotActive, uint32_t AudioFreq)
DL3LD	1:1556bcaaf759	1259	{
DL3LD	1:1556bcaaf759	1260	/* Initialize SAI2 block A in MASTER RX */
DL3LD	1:1556bcaaf759	1261	/* Initialize the haudio_out_sai Instance parameter */
DL3LD	1:1556bcaaf759	1262	haudio_out_sai.Instance = AUDIO_OUT_SAIx;
DL3LD	1:1556bcaaf759	1263
DL3LD	1:1556bcaaf759	1264	/* Disable SAI peripheral to allow access to SAI internal registers */
DL3LD	1:1556bcaaf759	1265	__HAL_SAI_DISABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	1266
DL3LD	1:1556bcaaf759	1267	/* Configure SAI_Block_x
DL3LD	1:1556bcaaf759	1268	LSBFirst: Disabled
DL3LD	1:1556bcaaf759	1269	DataSize: 16 */
DL3LD	1:1556bcaaf759	1270	haudio_out_sai.Init.AudioFrequency = AudioFreq;
DL3LD	1:1556bcaaf759	1271	haudio_out_sai.Init.AudioMode = SaiOutMode;
DL3LD	1:1556bcaaf759	1272	haudio_out_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED;
DL3LD	1:1556bcaaf759	1273	haudio_out_sai.Init.Protocol = SAI_FREE_PROTOCOL;
DL3LD	1:1556bcaaf759	1274	haudio_out_sai.Init.DataSize = SAI_DATASIZE_16;
DL3LD	1:1556bcaaf759	1275	haudio_out_sai.Init.FirstBit = SAI_FIRSTBIT_MSB;
DL3LD	1:1556bcaaf759	1276	haudio_out_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE;
DL3LD	1:1556bcaaf759	1277	haudio_out_sai.Init.Synchro = SAI_ASYNCHRONOUS;
DL3LD	1:1556bcaaf759	1278	haudio_out_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLED;
DL3LD	1:1556bcaaf759	1279	haudio_out_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF;
DL3LD	1:1556bcaaf759	1280
DL3LD	1:1556bcaaf759	1281	/* Configure SAI_Block_x Frame
DL3LD	1:1556bcaaf759	1282	Frame Length: 64
DL3LD	1:1556bcaaf759	1283	Frame active Length: 32
DL3LD	1:1556bcaaf759	1284	FS Definition: Start frame + Channel Side identification
DL3LD	1:1556bcaaf759	1285	FS Polarity: FS active Low
DL3LD	1:1556bcaaf759	1286	FS Offset: FS asserted one bit before the first bit of slot 0 */
DL3LD	1:1556bcaaf759	1287	haudio_out_sai.FrameInit.FrameLength = 64;
DL3LD	1:1556bcaaf759	1288	haudio_out_sai.FrameInit.ActiveFrameLength = 32;
DL3LD	1:1556bcaaf759	1289	haudio_out_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
DL3LD	1:1556bcaaf759	1290	haudio_out_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
DL3LD	1:1556bcaaf759	1291	haudio_out_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
DL3LD	1:1556bcaaf759	1292
DL3LD	1:1556bcaaf759	1293	/* Configure SAI Block_x Slot
DL3LD	1:1556bcaaf759	1294	Slot First Bit Offset: 0
DL3LD	1:1556bcaaf759	1295	Slot Size : 16
DL3LD	1:1556bcaaf759	1296	Slot Number: 4
DL3LD	1:1556bcaaf759	1297	Slot Active: All slot actives */
DL3LD	1:1556bcaaf759	1298	haudio_out_sai.SlotInit.FirstBitOffset = 0;
DL3LD	1:1556bcaaf759	1299	haudio_out_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE;
DL3LD	1:1556bcaaf759	1300	haudio_out_sai.SlotInit.SlotNumber = 4;
DL3LD	1:1556bcaaf759	1301	haudio_out_sai.SlotInit.SlotActive = SlotActive;
DL3LD	1:1556bcaaf759	1302
DL3LD	1:1556bcaaf759	1303	HAL_SAI_Init(&haudio_out_sai);
DL3LD	1:1556bcaaf759	1304
DL3LD	1:1556bcaaf759	1305	/* Initialize SAI2 block B in SLAVE RX synchronous from SAI2 block A */
DL3LD	1:1556bcaaf759	1306	/* Initialize the haudio_in_sai Instance parameter */
DL3LD	1:1556bcaaf759	1307	haudio_in_sai.Instance = AUDIO_IN_SAIx;
DL3LD	1:1556bcaaf759	1308
DL3LD	1:1556bcaaf759	1309	/* Disable SAI peripheral to allow access to SAI internal registers */
DL3LD	1:1556bcaaf759	1310	__HAL_SAI_DISABLE(&haudio_in_sai);
DL3LD	1:1556bcaaf759	1311
DL3LD	1:1556bcaaf759	1312	/* Configure SAI_Block_x
DL3LD	1:1556bcaaf759	1313	LSBFirst: Disabled
DL3LD	1:1556bcaaf759	1314	DataSize: 16 */
DL3LD	1:1556bcaaf759	1315	haudio_in_sai.Init.AudioFrequency = AudioFreq;
DL3LD	1:1556bcaaf759	1316	haudio_in_sai.Init.AudioMode = SAI_MODESLAVE_RX;
DL3LD	1:1556bcaaf759	1317	haudio_in_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED;
DL3LD	1:1556bcaaf759	1318	haudio_in_sai.Init.Protocol = SAI_FREE_PROTOCOL;
DL3LD	1:1556bcaaf759	1319	haudio_in_sai.Init.DataSize = SAI_DATASIZE_16;
DL3LD	1:1556bcaaf759	1320	haudio_in_sai.Init.FirstBit = SAI_FIRSTBIT_MSB;
DL3LD	1:1556bcaaf759	1321	haudio_in_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE;
DL3LD	1:1556bcaaf759	1322	haudio_in_sai.Init.Synchro = SAI_SYNCHRONOUS;
DL3LD	1:1556bcaaf759	1323	haudio_in_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_DISABLED;
DL3LD	1:1556bcaaf759	1324	haudio_in_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF;
DL3LD	1:1556bcaaf759	1325
DL3LD	1:1556bcaaf759	1326	/* Configure SAI_Block_x Frame
DL3LD	1:1556bcaaf759	1327	Frame Length: 64
DL3LD	1:1556bcaaf759	1328	Frame active Length: 32
DL3LD	1:1556bcaaf759	1329	FS Definition: Start frame + Channel Side identification
DL3LD	1:1556bcaaf759	1330	FS Polarity: FS active Low
DL3LD	1:1556bcaaf759	1331	FS Offset: FS asserted one bit before the first bit of slot 0 */
DL3LD	1:1556bcaaf759	1332	haudio_in_sai.FrameInit.FrameLength = 64;
DL3LD	1:1556bcaaf759	1333	haudio_in_sai.FrameInit.ActiveFrameLength = 32;
DL3LD	1:1556bcaaf759	1334	haudio_in_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
DL3LD	1:1556bcaaf759	1335	haudio_in_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
DL3LD	1:1556bcaaf759	1336	haudio_in_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
DL3LD	1:1556bcaaf759	1337
DL3LD	1:1556bcaaf759	1338	/* Configure SAI Block_x Slot
DL3LD	1:1556bcaaf759	1339	Slot First Bit Offset: 0
DL3LD	1:1556bcaaf759	1340	Slot Size : 16
DL3LD	1:1556bcaaf759	1341	Slot Number: 4
DL3LD	1:1556bcaaf759	1342	Slot Active: All slot active */
DL3LD	1:1556bcaaf759	1343	haudio_in_sai.SlotInit.FirstBitOffset = 0;
DL3LD	1:1556bcaaf759	1344	haudio_in_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE;
DL3LD	1:1556bcaaf759	1345	haudio_in_sai.SlotInit.SlotNumber = 4;
DL3LD	1:1556bcaaf759	1346	haudio_in_sai.SlotInit.SlotActive = SlotActive;
DL3LD	1:1556bcaaf759	1347
DL3LD	1:1556bcaaf759	1348	HAL_SAI_Init(&haudio_in_sai);
DL3LD	1:1556bcaaf759	1349
DL3LD	1:1556bcaaf759	1350	/* Enable SAI peripheral to generate MCLK */
DL3LD	1:1556bcaaf759	1351	__HAL_SAI_ENABLE(&haudio_out_sai);
DL3LD	1:1556bcaaf759	1352
DL3LD	1:1556bcaaf759	1353	/* Enable SAI peripheral */
DL3LD	1:1556bcaaf759	1354	__HAL_SAI_ENABLE(&haudio_in_sai);
DL3LD	1:1556bcaaf759	1355	}
DL3LD	1:1556bcaaf759	1356
DL3LD	1:1556bcaaf759	1357
DL3LD	1:1556bcaaf759	1358
DL3LD	1:1556bcaaf759	1359	/**
DL3LD	1:1556bcaaf759	1360	* @brief Deinitializes the output Audio Codec audio interface (SAI).
DL3LD	1:1556bcaaf759	1361	* @retval None
DL3LD	1:1556bcaaf759	1362	*/
DL3LD	1:1556bcaaf759	1363	static void SAIx_In_DeInit(void)
DL3LD	1:1556bcaaf759	1364	{
DL3LD	1:1556bcaaf759	1365	/* Initialize the haudio_in_sai Instance parameter */
DL3LD	1:1556bcaaf759	1366	haudio_in_sai.Instance = AUDIO_IN_SAIx;
DL3LD	1:1556bcaaf759	1367
DL3LD	1:1556bcaaf759	1368	/* Disable SAI peripheral */
DL3LD	1:1556bcaaf759	1369	__HAL_SAI_DISABLE(&haudio_in_sai);
DL3LD	1:1556bcaaf759	1370
DL3LD	1:1556bcaaf759	1371	HAL_SAI_DeInit(&haudio_in_sai);
DL3LD	1:1556bcaaf759	1372	}
DL3LD	1:1556bcaaf759	1373
DL3LD	1:1556bcaaf759	1374	/**
DL3LD	1:1556bcaaf759	1375	* @brief This function handles External line 15_10 interrupt request.
DL3LD	1:1556bcaaf759	1376	* @param None
DL3LD	1:1556bcaaf759	1377	* @retval None
DL3LD	1:1556bcaaf759	1378	*/
DL3LD	1:1556bcaaf759	1379	static void AUDIO_IN_INT_IRQHandler(void)
DL3LD	1:1556bcaaf759	1380	{
DL3LD	1:1556bcaaf759	1381	/* Interrupt handler shared between SD_DETECT pin, USER_KEY button and touch screen interrupt */
DL3LD	1:1556bcaaf759	1382	if (__HAL_GPIO_EXTI_GET_IT(AUDIO_IN_INT_GPIO_PIN) != RESET)
DL3LD	1:1556bcaaf759	1383	{
DL3LD	1:1556bcaaf759	1384	HAL_GPIO_EXTI_IRQHandler(AUDIO_IN_INT_GPIO_PIN); /* Audio Interrupt */
DL3LD	1:1556bcaaf759	1385	}
DL3LD	1:1556bcaaf759	1386	}
DL3LD	1:1556bcaaf759	1387
DL3LD	1:1556bcaaf759	1388	/**
DL3LD	1:1556bcaaf759	1389	* @brief This function handles DMA2 Stream 7 interrupt request.
DL3LD	1:1556bcaaf759	1390	* @param None
DL3LD	1:1556bcaaf759	1391	* @retval None
DL3LD	1:1556bcaaf759	1392	*/
DL3LD	1:1556bcaaf759	1393	static void AUDIO_IN_SAIx_DMAx_IRQHandler(void)
DL3LD	1:1556bcaaf759	1394	{
DL3LD	1:1556bcaaf759	1395	HAL_DMA_IRQHandler(haudio_in_sai.hdmarx);
DL3LD	1:1556bcaaf759	1396	}
DL3LD	1:1556bcaaf759	1397
DL3LD	1:1556bcaaf759	1398	/**
DL3LD	1:1556bcaaf759	1399	* @brief This function handles DMA2 Stream 6 interrupt request.
DL3LD	1:1556bcaaf759	1400	* @param None
DL3LD	1:1556bcaaf759	1401	* @retval None
DL3LD	1:1556bcaaf759	1402	*/
DL3LD	1:1556bcaaf759	1403	static void AUDIO_OUT_SAIx_DMAx_IRQHandler(void)
DL3LD	1:1556bcaaf759	1404	{
DL3LD	1:1556bcaaf759	1405	HAL_DMA_IRQHandler(haudio_out_sai.hdmatx);
DL3LD	1:1556bcaaf759	1406	}
DL3LD	1:1556bcaaf759	1407
DL3LD	1:1556bcaaf759	1408	/**
DL3LD	1:1556bcaaf759	1409	* @}
DL3LD	1:1556bcaaf759	1410	*/
DL3LD	1:1556bcaaf759	1411
DL3LD	1:1556bcaaf759	1412	/**
DL3LD	1:1556bcaaf759	1413	* @}
DL3LD	1:1556bcaaf759	1414	*/
DL3LD	1:1556bcaaf759	1415
DL3LD	1:1556bcaaf759	1416	/**
DL3LD	1:1556bcaaf759	1417	* @}
DL3LD	1:1556bcaaf759	1418	*/
DL3LD	1:1556bcaaf759	1419
DL3LD	1:1556bcaaf759	1420	/**
DL3LD	1:1556bcaaf759	1421	* @}
DL3LD	1:1556bcaaf759	1422	*/
DL3LD	1:1556bcaaf759	1423
DL3LD	1:1556bcaaf759	1424	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/
DL3LD	1:1556bcaaf759	1425

Repository toolbox

Export to desktop IDE

Build repository

Repository details

Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	27 Mar 2016
Imports:	6
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	1
Followers:	1

BSP_F746NG/stm32746g_discovery_audio.c@1:1556bcaaf759, 2016-03-27 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning