7165d3f691
too much damange. everything else here is the same in a 64bit vs. 32bit world, so keep it all simple. the alpha was the only port to have any real affect for this, and it only very recently begun to support some audio devices so it doesn't really apply here. 1.3/alpha did not support audio..
321 lines
9.9 KiB
C
321 lines
9.9 KiB
C
/* $NetBSD: audioio.h,v 1.24 1998/08/13 06:28:41 mrg Exp $ */
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/*
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* Copyright (c) 1991-1993 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Computer Systems
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* Engineering Group at Lawrence Berkeley Laboratory.
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* 4. Neither the name of the University nor of the Laboratory may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _SYS_AUDIOIO_H_
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#define _SYS_AUDIOIO_H_
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/*
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* Audio device
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*/
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struct audio_prinfo {
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u_int sample_rate; /* sample rate in bit/s */
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u_int channels; /* number of channels, usually 1 or 2 */
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u_int precision; /* number of bits/sample */
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u_int encoding; /* data encoding (AUDIO_ENCODING_* below) */
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u_int gain; /* volume level */
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u_int port; /* selected I/O port */
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u_int seek; /* BSD extension */
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u_int avail_ports; /* available I/O ports */
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u_int buffer_size; /* total size audio buffer */
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u_int _ispare[1];
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/* Current state of device: */
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u_int samples; /* number of samples */
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u_int eof; /* End Of File (zero-size writes) counter */
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u_char pause; /* non-zero if paused, zero to resume */
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u_char error; /* non-zero if underflow/overflow ocurred */
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u_char waiting; /* non-zero if another process hangs in open */
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u_char balance; /* stereo channel balance */
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u_char cspare[2];
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u_char open; /* non-zero if currently open */
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u_char active; /* non-zero if I/O is currently active */
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};
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typedef struct audio_prinfo audio_prinfo_t;
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struct audio_info {
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struct audio_prinfo play; /* Info for play (output) side */
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struct audio_prinfo record; /* Info for record (input) side */
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u_int monitor_gain; /* input to output mix */
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/* BSD extensions */
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u_int blocksize; /* H/W read/write block size */
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u_int hiwat; /* output high water mark */
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u_int lowat; /* output low water mark */
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u_int _ispare1;
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u_int mode; /* current device mode */
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#define AUMODE_PLAY 0x01
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#define AUMODE_RECORD 0x02
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#define AUMODE_PLAY_ALL 0x04 /* don't do real-time correction */
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};
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typedef struct audio_info audio_info_t;
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#define AUDIO_INITINFO(p) \
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(void)memset((void *)(p), 0xff, sizeof(struct audio_info))
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/*
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* Parameter for the AUDIO_GETDEV ioctl to determine current
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* audio devices.
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*/
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#define MAX_AUDIO_DEV_LEN 16
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typedef struct audio_device {
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char name[MAX_AUDIO_DEV_LEN];
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char version[MAX_AUDIO_DEV_LEN];
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char config[MAX_AUDIO_DEV_LEN];
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} audio_device_t;
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typedef struct audio_offset {
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u_int samples; /* Total number of bytes transferred */
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u_int deltablks; /* Blocks transferred since last checked */
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u_int offset; /* Physical transfer offset in buffer */
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} audio_offset_t;
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/*
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* Supported audio encodings
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*/
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/* Encoding ID's */
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#define AUDIO_ENCODING_NONE 0 /* no encoding assigned */
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#define AUDIO_ENCODING_ULAW 1 /* ITU G.711 mu-law */
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#define AUDIO_ENCODING_ALAW 2 /* ITU G.711 A-law */
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#define AUDIO_ENCODING_PCM16 3 /* signed linear PCM, obsolete */
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#define AUDIO_ENCODING_LINEAR AUDIO_ENCODING_PCM16 /* SunOS compat */
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#define AUDIO_ENCODING_PCM8 4 /* unsigned linear PCM, obsolete */
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#define AUDIO_ENCODING_LINEAR8 AUDIO_ENCODING_PCM8 /* SunOS compat */
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#define AUDIO_ENCODING_ADPCM 5 /* adaptive differential PCM */
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#define AUDIO_ENCODING_SLINEAR_LE 6
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#define AUDIO_ENCODING_SLINEAR_BE 7
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#define AUDIO_ENCODING_ULINEAR_LE 8
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#define AUDIO_ENCODING_ULINEAR_BE 9
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#define AUDIO_ENCODING_SLINEAR 10
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#define AUDIO_ENCODING_ULINEAR 11
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#define AUDIO_ENCODING_MPEG_L1_STREAM 12
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#define AUDIO_ENCODING_MPEG_L1_PACKETS 13
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#define AUDIO_ENCODING_MPEG_L1_SYSTEM 14
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#define AUDIO_ENCODING_MPEG_L2_STREAM 15
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#define AUDIO_ENCODING_MPEG_L2_PACKETS 16
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#define AUDIO_ENCODING_MPEG_L2_SYSTEM 17
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typedef struct audio_encoding {
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int index;
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char name[MAX_AUDIO_DEV_LEN];
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int encoding;
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int precision;
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int flags;
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#define AUDIO_ENCODINGFLAG_EMULATED 1 /* software emulation mode */
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} audio_encoding_t;
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/*
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* Balance settings.
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*/
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#define AUDIO_LEFT_BALANCE 0 /* left channel only */
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#define AUDIO_MID_BALANCE 32 /* equal left/right channel */
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#define AUDIO_RIGHT_BALANCE 64 /* right channel only */
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#define AUDIO_BALANCE_SHIFT 3
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/*
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* Output ports
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*/
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#define AUDIO_SPEAKER 0x01 /* built-in speaker */
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#define AUDIO_HEADPHONE 0x02 /* headphone jack */
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#define AUDIO_LINE_OUT 0x04 /* line out */
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/*
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* Input ports
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*/
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#define AUDIO_MICROPHONE 0x01 /* microphone */
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#define AUDIO_LINE_IN 0x02 /* line in */
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#define AUDIO_CD 0x04 /* on-board CD inputs */
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#define AUDIO_INTERNAL_CD_IN AUDIO_CD /* internal CDROM */
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/*
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* Audio device operations
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*/
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#define AUDIO_GETINFO _IOR('A', 21, struct audio_info)
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#define AUDIO_SETINFO _IOWR('A', 22, struct audio_info)
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#define AUDIO_DRAIN _IO('A', 23)
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#define AUDIO_FLUSH _IO('A', 24)
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#define AUDIO_WSEEK _IOR('A', 25, u_long)
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#define AUDIO_RERROR _IOR('A', 26, int)
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#define AUDIO_GETDEV _IOR('A', 27, struct audio_device)
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#define AUDIO_GETENC _IOWR('A', 28, struct audio_encoding)
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#define AUDIO_GETFD _IOR('A', 29, int)
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#define AUDIO_SETFD _IOWR('A', 30, int)
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#define AUDIO_PERROR _IOR('A', 31, int)
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#define AUDIO_GETIOFFS _IOR('A', 32, struct audio_offset)
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#define AUDIO_GETOOFFS _IOR('A', 33, struct audio_offset)
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#define AUDIO_GETPROPS _IOR('A', 34, int)
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#define AUDIO_PROP_FULLDUPLEX 0x01
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#define AUDIO_PROP_MMAP 0x02
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#define AUDIO_PROP_INDEPENDENT 0x04
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/*
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* Mixer device
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*/
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#define AUDIO_MIN_GAIN 0
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#define AUDIO_MAX_GAIN 255
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typedef struct mixer_level {
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int num_channels;
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u_char level[8]; /* [num_channels] */
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} mixer_level_t;
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#define AUDIO_MIXER_LEVEL_MONO 0
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#define AUDIO_MIXER_LEVEL_LEFT 0
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#define AUDIO_MIXER_LEVEL_RIGHT 1
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/*
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* Device operations
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*/
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typedef struct audio_mixer_name {
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char name[MAX_AUDIO_DEV_LEN];
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int msg_id;
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} audio_mixer_name_t;
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typedef struct mixer_devinfo {
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int index;
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audio_mixer_name_t label;
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int type;
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#define AUDIO_MIXER_CLASS 0
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#define AUDIO_MIXER_ENUM 1
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#define AUDIO_MIXER_SET 2
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#define AUDIO_MIXER_VALUE 3
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int mixer_class;
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int next, prev;
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#define AUDIO_MIXER_LAST -1
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union {
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struct audio_mixer_enum {
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int num_mem;
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struct {
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audio_mixer_name_t label;
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int ord;
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} member[32];
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} e;
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struct audio_mixer_set {
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int num_mem;
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struct {
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audio_mixer_name_t label;
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int mask;
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} member[32];
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} s;
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struct audio_mixer_value {
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audio_mixer_name_t units;
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int num_channels;
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} v;
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} un;
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} mixer_devinfo_t;
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typedef struct mixer_ctrl {
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int dev;
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int type;
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union {
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int ord; /* enum */
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int mask; /* set */
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mixer_level_t value; /* value */
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} un;
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} mixer_ctrl_t;
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/*
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* Mixer operations
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*/
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#define AUDIO_MIXER_READ _IOWR('M', 0, mixer_ctrl_t)
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#define AUDIO_MIXER_WRITE _IOWR('M', 1, mixer_ctrl_t)
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#define AUDIO_MIXER_DEVINFO _IOWR('M', 2, mixer_devinfo_t)
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/*
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* Well known device names
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*/
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#define AudioNmicrophone "mic"
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#define AudioNline "line"
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#define AudioNcd "cd"
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#define AudioNdac "dac"
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#define AudioNaux "aux"
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#define AudioNrecord "record"
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#define AudioNvolume "volume"
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#define AudioNmonitor "monitor"
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#define AudioNtreble "treble"
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#define AudioNmid "mid"
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#define AudioNbass "bass"
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#define AudioNbassboost "bassboost"
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#define AudioNspeaker "speaker"
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#define AudioNheadphone "headphones"
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#define AudioNoutput "output"
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#define AudioNinput "input"
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#define AudioNmaster "master"
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#define AudioNstereo "stereo"
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#define AudioNmono "mono"
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#define AudioNloudness "loudness"
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#define AudioNspatial "spatial"
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#define AudioNsurround "surround"
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#define AudioNpseudo "pseudo"
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#define AudioNmute "mute"
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#define AudioNenhanced "enhanced"
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#define AudioNpreamp "preamp"
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#define AudioNon "on"
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#define AudioNoff "off"
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#define AudioNmode "mode"
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#define AudioNsource "source"
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#define AudioNfmsynth "fmsynth"
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#define AudioNwave "wave"
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#define AudioNmidi "midi"
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#define AudioNmixerout "mixerout"
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#define AudioNswap "swap" /* swap left and right channels */
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#define AudioNagc "agc"
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#define AudioNdelay "delay"
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#define AudioNselect "select" /* select destination */
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#define AudioEmulaw "mulaw"
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#define AudioEalaw "alaw"
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#define AudioEadpcm "adpcm"
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#define AudioEslinear "slinear"
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#define AudioEslinear_le "slinear_le"
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#define AudioEslinear_be "slinear_be"
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#define AudioEulinear "ulinear"
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#define AudioEulinear_le "ulinear_le"
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#define AudioEulinear_be "ulinear_be"
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#define AudioEmpeg_l1_stream "mpeg_l1_stream"
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#define AudioEmpeg_l1_packets "mpeg_l1_packets"
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#define AudioEmpeg_l1_system "mpeg_l1_system"
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#define AudioEmpeg_l2_stream "mpeg_l2_stream"
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#define AudioEmpeg_l2_packets "mpeg_l2_packets"
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#define AudioEmpeg_l2_system "mpeg_l2_system"
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#define AudioCinputs "inputs"
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#define AudioCoutputs "outputs"
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#define AudioCrecord "record"
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#define AudioCmonitor "monitor"
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#define AudioCequalization "equalization"
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#endif /* !_SYS_AUDIOIO_H_ */
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