/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */


#ifndef _DVBAUDIO_H_
#define _DVBAUDIO_H_

#include <linux/types.h>

typedef enum {
	AUDIO_SOURCE_DEMUX, 
	AUDIO_SOURCE_MEMORY 
} audio_stream_source_t;


typedef enum {
	AUDIO_STOPPED,      
	AUDIO_PLAYING,      
	AUDIO_PAUSED        
} audio_play_state_t;


typedef enum {
	AUDIO_STEREO,
	AUDIO_MONO_LEFT,
	AUDIO_MONO_RIGHT,
	AUDIO_MONO,
	AUDIO_STEREO_SWAPPED
} audio_channel_select_t;


typedef struct audio_mixer {
	unsigned int volume_left;
	unsigned int volume_right;
  
} audio_mixer_t;


typedef struct audio_status {
	int                    AV_sync_state;  
	int                    mute_state;     
	audio_play_state_t     play_state;     
	audio_stream_source_t  stream_source;  
	audio_channel_select_t channel_select; 
	int                    bypass_mode;    
	audio_mixer_t	       mixer_state;    
} audio_status_t;                              



#define AUDIO_CAP_DTS    1
#define AUDIO_CAP_LPCM   2
#define AUDIO_CAP_MP1    4
#define AUDIO_CAP_MP2    8
#define AUDIO_CAP_MP3   16
#define AUDIO_CAP_AAC   32
#define AUDIO_CAP_OGG   64
#define AUDIO_CAP_SDDS 128
#define AUDIO_CAP_AC3  256

#define AUDIO_STOP                 _IO('o', 1)
#define AUDIO_PLAY                 _IO('o', 2)
#define AUDIO_PAUSE                _IO('o', 3)
#define AUDIO_CONTINUE             _IO('o', 4)
#define AUDIO_SELECT_SOURCE        _IO('o', 5)
#define AUDIO_SET_MUTE             _IO('o', 6)
#define AUDIO_SET_AV_SYNC          _IO('o', 7)
#define AUDIO_SET_BYPASS_MODE      _IO('o', 8)
#define AUDIO_CHANNEL_SELECT       _IO('o', 9)
#define AUDIO_GET_STATUS           _IOR('o', 10, audio_status_t)

#define AUDIO_GET_CAPABILITIES     _IOR('o', 11, unsigned int)
#define AUDIO_CLEAR_BUFFER         _IO('o',  12)
#define AUDIO_SET_ID               _IO('o', 13)
#define AUDIO_SET_MIXER            _IOW('o', 14, audio_mixer_t)
#define AUDIO_SET_STREAMTYPE       _IO('o', 15)
#define AUDIO_BILINGUAL_CHANNEL_SELECT _IO('o', 20)

#endif 
