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/**
******************************************************************************
* @file audioplayer_app.h
* @author MCD Application Team
* @brief header of audio player application file
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __AUDIO_IF_H
#define __AUDIO_IF_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Exported constants --------------------------------------------------------*/
#define AUDIO_OUT_BUFFER_SIZE (24 * 1024)
#define AUDIO_IN_BUFFER_SIZE (10 * 2304) /* buffer size in half-word */
#define AUDIO_IN_PDM_BUFFER_SIZE (INTERNAL_BUFF_SIZE)
/* Exported types ------------------------------------------------------------*/
/* Audio buffer control struct */
typedef enum
{
AUDIO_RECORDER_IDLE = 0,
AUDIO_RECORDER_SUSPENDED = 1,
AUDIO_RECORDER_RECORDING = 2,
AUDIO_RECORDER_PLAYING = 3,
AUDIO_RECORDER_RECORD_PAUSE = 4,
AUDIO_RECORDER_PLAY_PAUSE = 5,
AUDIO_RECORDER_RECORD_EOF = 6,
AUDIO_RECORDER_PLAY_EOF = 7,
AUDIO_RECORDER_ERROR = 0xFF,
}IN_StateTypdef;
typedef enum
{
BUFFER_OFFSET_NONE = 0,
REC_BUFFER_OFFSET_HALF,
REC_BUFFER_OFFSET_FULL,
PLAY_BUFFER_OFFSET_HALF,
PLAY_BUFFER_OFFSET_FULL,
}
BUFFER_StateTypeDef;
typedef enum
{
AUDIOPLAYER_STOP = 0,
AUDIOPLAYER_START,
AUDIOPLAYER_PLAY,
AUDIOPLAYER_PAUSE,
AUDIOPLAYER_EOF,
AUDIOPLAYER_ERROR,
}OUT_StateTypdef;
typedef struct {
uint32_t volume;
uint32_t mute;
OUT_StateTypdef state;
}OUT_Process_t;
typedef enum {
BUFFER_EMPTY = 0,
BUFFER_FULL,
}WR_BUFFER_StateTypeDef;
typedef struct {
uint32_t volume;
uint32_t fptr;
IN_StateTypdef state;
}IN_Process_t;
typedef struct
{
uint8_t buff[AUDIO_OUT_BUFFER_SIZE];
uint16_t pdm[AUDIO_IN_PDM_BUFFER_SIZE];
uint32_t ppcm;
OUT_Process_t out;
IN_Process_t in;
}AUDIO_ProcessTypdef ;
typedef struct
{
uint32_t ChunkID; /* 0 */
uint32_t FileSize; /* 4 */
uint32_t FileFormat; /* 8 */
uint32_t SubChunk1ID; /* 12 */
uint32_t SubChunk1Size; /* 16*/
uint16_t AudioFormat; /* 20 */
uint16_t NbrChannels; /* 22 */
uint32_t SampleRate; /* 24 */
uint32_t ByteRate; /* 28 */
uint16_t BlockAlign; /* 32 */
uint16_t BitPerSample; /* 34 */
uint32_t SubChunk2ID; /* 36 */
uint32_t SubChunk2Size; /* 40 */
}WAV_InfoTypedef ;
typedef struct
{
void (*TransferComplete_CallBack)(void);
void (*HalfTransfer_CallBack)(void);
void (*Error_CallBack)(void);
}AUDIO_IFTypeDef;
typedef void (*pFunc)(void);
/* Exported macros -----------------------------------------------------------*/
extern AUDIO_ProcessTypdef haudio;
/* Exported functions ------------------------------------------------------- */
void AUDIO_IF_RegisterCallbacks(pFunc tc_cb,
pFunc ht_cb,
pFunc err_cb);
#ifdef __cplusplus
}
#endif
#endif /*__AUDIO_IF_H */