AudioPlayer.h

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/*
 * AudioPlayer.h
 *
 *  Created on: May 28, 2016
 *      Author: Torsten
 */

#ifndef AUDIOPLAYER_H_
#define AUDIOPLAYER_H_

/* Includes ------------------------------------------------------------------*/
#include "main.h"

#include "usbd_audio.h"

/* Exported constants --------------------------------------------------------*/
#define AUDIO_OUT_BUFFER_SIZE               2*AUDIO_TOTAL_BUF_SIZE

/* Exported types ------------------------------------------------------------*/
typedef enum {
  BUFFER_OFFSET_NONE = 0,
  BUFFER_OFFSET_HALF,
  BUFFER_OFFSET_FULL,
}BUFFER_StateTypeDef;

/* Audio buffer control struct */
typedef struct {
  uint8_t buff[AUDIO_OUT_BUFFER_SIZE];
  volatile BUFFER_StateTypeDef state;
  volatile uint32_t fptr;
  volatile int clockState;
}AUDIO_OUT_BufferTypeDef;

typedef enum {
  AUDIO_ERROR_NONE = 0,
  AUDIO_ERROR_IO,
  AUDIO_ERROR_EOF,
  AUDIO_ERROR_INVALID_VALUE,
}AUDIO_ErrorTypeDef;

/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
AUDIO_ErrorTypeDef AUDIO_PLAYER_Init(int outSelection, int sampleFreq);
AUDIO_ErrorTypeDef AUDIO_PLAYER_Start(void);
void AUDIO_PLAYER_Restart(void);
AUDIO_ErrorTypeDef AUDIO_PLAYER_Process(void);
AUDIO_ErrorTypeDef AUDIO_PLAYER_Stop(void);
int  AUDIO_PLAYER_GetClock(void);
void AUDIO_PLAYER_ReleaseClock(int trig);
int  AUDIO_PLAYER_GetBuffer(uint8_t **out_BufAddr);
void AUDIO_Player_CpyBuf(uint8_t *buf);
void AUDIO_Player_QueueBuf(uint8_t *buf, int len);
int  AUDIO_PLAYER_GetState(void);
void AUDIO_Player_IncHeartbeat(void);
unsigned long AUDIO_Player_GetHeartbeat(void);
void AUDIO_Player_UDANTERestart(void);

#endif /* AUDIOPLAYER_H_ */