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/* $OpenBSD: bsd_audioio.h,v 1.2 1997/08/08 08:26:05 downsj Exp $ */
/* $NetBSD: bsd_audioio.h,v 1.3 1995/03/04 09:58:45 pk Exp $ */
/*
* Copyright (c) 1991, 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)bsd_audioio.h 8.1 (Berkeley) 6/11/93
*/
#ifndef _BSD_AUDIOIO_H_
#define _BSD_AUDIOIO_H_
/*
* /dev/audio ioctls. needs comments!
*/
#define AUDIO_MIN_GAIN (0)
#define AUDIO_MAX_GAIN (255)
#define AUDIO_ENCODING_ULAW (1)
#define AUDIO_ENCODING_ALAW (2)
struct audio_prinfo {
u_int sample_rate;
u_int channels;
u_int precision;
u_int encoding;
u_int gain;
u_int port;
u_long seek; /* BSD extension */
u_int ispare[3];
u_int samples;
u_int eof;
u_char pause;
u_char error;
u_char waiting;
u_char cspare[3];
u_char open;
u_char active;
};
struct audio_info {
struct audio_prinfo play;
struct audio_prinfo record;
u_int monitor_gain;
/* BSD extensions */
u_int blocksize; /* input blocking threshold */
u_int hiwat; /* output high water mark */
u_int lowat; /* output low water mark */
u_int backlog; /* samples of output backlog to gen. */
u_int mode;
};
typedef struct audio_info audio_info_t;
#define AUDIO_INITINFO(p)\
(void)memset((void *)(p), 0xff, sizeof(struct audio_info))
#if (defined(sun) || defined(ibm032)) && !defined(__GNUC__)
#define AUDIO_GETINFO _IOR(A, 21, struct audio_info)
#define AUDIO_SETINFO _IOWR(A, 22, struct audio_info)
#define AUDIO_DRAIN _IO(A, 23)
#define AUDIO_FLUSH _IO(A, 24)
#define AUDIO_WSEEK _IOR(A, 25, u_long)
#define AUDIO_RERROR _IOR(A, 26, int)
#define AUDIO_GETMAP _IOR(A, 27, struct mapreg)
#define AUDIO_SETMAP _IOW(A, 28, struct mapreg)
#else
#define AUDIO_GETINFO _IOR('A', 21, struct audio_info)
#define AUDIO_SETINFO _IOWR('A', 22, struct audio_info)
#define AUDIO_DRAIN _IO('A', 23)
#define AUDIO_FLUSH _IO('A', 24)
#define AUDIO_WSEEK _IOR('A', 25, u_long)
#define AUDIO_RERROR _IOR('A', 26, int)
#define AUDIO_GETMAP _IOR('A', 27, struct mapreg)
#define AUDIO_SETMAP _IOW('A', 28, struct mapreg)
#endif
#define AUDIO_SPEAKER 1
#define AUDIO_HEADPHONE 2
/*
* Low level interface.
*/
struct mapreg {
u_short mr_x[8];
u_short mr_r[8];
u_short mr_gx;
u_short mr_gr;
u_short mr_ger;
u_short mr_stgr;
u_short mr_ftgr;
u_short mr_atgr;
u_char mr_mmr1;
u_char mr_mmr2;
};
#endif /* _BSD_AUDIOIO_H_ */
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