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/*

 * audio_drv.h

 *

 *  Created on: Jun 22, 2014

 *      Author: AlexO

 */

#ifndef AUDIO_DRV_H_

#define AUDIO_DRV_H_

#include "sys/alt_dev.h"

// -------------------- TLV320AIC1106 definitions

#define AIC1106_p3db                    0

#define AIC1106_0db                             1

#define AIC1106_m3db                    2

#define AIC1106_m6db                    3

#define AIC1106_m9db                    4

#define AIC1106_m12db                   5

#define AIC1106_m15db                   6

#define AIC1106_m18db                   7

#define AIC1106_off                             AIC1106_MUTE

#define AIC1106_MUTE                    0x08

#define AIC1106_ENABLE                  0x10

#define AIC1106_LOOPBACK                0x20

#define AIC1106_RESET                   0x40

#define AIC1106_ALMOST_EMPTY    16

#define AIC1106_ALMOST_FULL             AIC1106_OUTPUT_FIFO_IN_FIFO_DEPTH - 16

#define AIC1106_SAMPLE_RATE     8000

#define AIC1106_BITS_PER_SAMPLE 16

// ioctl codes

#define AUDIO_IOCTL_SET_VOL             0

#define AUDIO_IOCTL_GET_VOL             1

#define AUDIO_IOCTL_RESET               2

#define AUDIO_IOCTL_LOOPBACK    3

#define AUDIO_IOCTL_IOCANCEL    4

#define AUDIO_FAIL                              -1

#define AUDIO_SUCCESS                   0

int             audio_driver_init();

void    audio_set_volume(int volume);

int             audio_get_volume();

int             audio_beep(int volume, int freq, int duration_ms, int pause_ms, int beep_count);

alt_16* audio_read_wav(char* fname, int* samples_num);

int             audio_write_wav(char* fname, alt_16 *sample_ptr, int samples_num);

int             audio_play_wav(char* fname);

int             audio_record_wav(char* fname, int (*rec_callback)(int time));

int     audio_io_cancel();

void    audio_set_idle_callback(void (*idle_fn)(alt_fd* fd));

int     audio_write_direct(char* ptr, int len);

/*

 * Old API compatible functions

 * */

int             PlayWavFile(char* fname, int volume);

void    SoundToneAlarm(int volume, int freq, int duration_ms, int pause_ms, int beep_count);

#endif /* AUDIO_DRV_H_ */