cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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audio.h (3550B)

      1/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
      2/*
      3 * audio.h - DEPRECATED MPEG-TS audio decoder API
      4 *
      5 * NOTE: should not be used on future drivers
      6 *
      7 * Copyright (C) 2000 Ralph  Metzler <ralph@convergence.de>
      8 *                  & Marcus Metzler <marcus@convergence.de>
      9 *                    for convergence integrated media GmbH
     10 *
     11 * This program is free software; you can redistribute it and/or
     12 * modify it under the terms of the GNU General Lesser Public License
     13 * as published by the Free Software Foundation; either version 2.1
     14 * of the License, or (at your option) any later version.
     15 *
     16 * This program is distributed in the hope that it will be useful,
     17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     19 * GNU General Public License for more details.
     20 *
     21 * You should have received a copy of the GNU Lesser General Public License
     22 * along with this program; if not, write to the Free Software
     23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
     24 *
     25 */
     26
     27#ifndef _DVBAUDIO_H_
     28#define _DVBAUDIO_H_
     29
     30#include <linux/types.h>
     31
     32typedef enum {
     33	AUDIO_SOURCE_DEMUX, /* Select the demux as the main source */
     34	AUDIO_SOURCE_MEMORY /* Select internal memory as the main source */
     35} audio_stream_source_t;
     36
     37
     38typedef enum {
     39	AUDIO_STOPPED,      /* Device is stopped */
     40	AUDIO_PLAYING,      /* Device is currently playing */
     41	AUDIO_PAUSED        /* Device is paused */
     42} audio_play_state_t;
     43
     44
     45typedef enum {
     46	AUDIO_STEREO,
     47	AUDIO_MONO_LEFT,
     48	AUDIO_MONO_RIGHT,
     49	AUDIO_MONO,
     50	AUDIO_STEREO_SWAPPED
     51} audio_channel_select_t;
     52
     53
     54typedef struct audio_mixer {
     55	unsigned int volume_left;
     56	unsigned int volume_right;
     57  /* what else do we need? bass, pass-through, ... */
     58} audio_mixer_t;
     59
     60
     61typedef struct audio_status {
     62	int                    AV_sync_state;  /* sync audio and video? */
     63	int                    mute_state;     /* audio is muted */
     64	audio_play_state_t     play_state;     /* current playback state */
     65	audio_stream_source_t  stream_source;  /* current stream source */
     66	audio_channel_select_t channel_select; /* currently selected channel */
     67	int                    bypass_mode;    /* pass on audio data to */
     68	audio_mixer_t	       mixer_state;    /* current mixer state */
     69} audio_status_t;                              /* separate decoder hardware */
     70
     71
     72/* for GET_CAPABILITIES and SET_FORMAT, the latter should only set one bit */
     73#define AUDIO_CAP_DTS    1
     74#define AUDIO_CAP_LPCM   2
     75#define AUDIO_CAP_MP1    4
     76#define AUDIO_CAP_MP2    8
     77#define AUDIO_CAP_MP3   16
     78#define AUDIO_CAP_AAC   32
     79#define AUDIO_CAP_OGG   64
     80#define AUDIO_CAP_SDDS 128
     81#define AUDIO_CAP_AC3  256
     82
     83#define AUDIO_STOP                 _IO('o', 1)
     84#define AUDIO_PLAY                 _IO('o', 2)
     85#define AUDIO_PAUSE                _IO('o', 3)
     86#define AUDIO_CONTINUE             _IO('o', 4)
     87#define AUDIO_SELECT_SOURCE        _IO('o', 5)
     88#define AUDIO_SET_MUTE             _IO('o', 6)
     89#define AUDIO_SET_AV_SYNC          _IO('o', 7)
     90#define AUDIO_SET_BYPASS_MODE      _IO('o', 8)
     91#define AUDIO_CHANNEL_SELECT       _IO('o', 9)
     92#define AUDIO_GET_STATUS           _IOR('o', 10, audio_status_t)
     93
     94#define AUDIO_GET_CAPABILITIES     _IOR('o', 11, unsigned int)
     95#define AUDIO_CLEAR_BUFFER         _IO('o',  12)
     96#define AUDIO_SET_ID               _IO('o', 13)
     97#define AUDIO_SET_MIXER            _IOW('o', 14, audio_mixer_t)
     98#define AUDIO_SET_STREAMTYPE       _IO('o', 15)
     99#define AUDIO_BILINGUAL_CHANNEL_SELECT _IO('o', 20)
    100
    101#endif /* _DVBAUDIO_H_ */