11387Ssos/*- 2230132Suqs * Copyright (c) 1994 S��ren Schmidt 31387Ssos * All rights reserved. 41387Ssos * 51387Ssos * Redistribution and use in source and binary forms, with or without 61387Ssos * modification, are permitted provided that the following conditions 71387Ssos * are met: 81387Ssos * 1. Redistributions of source code must retain the above copyright 93187Ssos * notice, this list of conditions and the following disclaimer 103187Ssos * in this position and unchanged. 111387Ssos * 2. Redistributions in binary form must reproduce the above copyright 121387Ssos * notice, this list of conditions and the following disclaimer in the 131387Ssos * documentation and/or other materials provided with the distribution. 141387Ssos * 3. The name of the author may not be used to endorse or promote products 1513765Smpp * derived from this software without specific prior written permission 161387Ssos * 171387Ssos * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 181387Ssos * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 191387Ssos * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 201387Ssos * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 211387Ssos * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 221387Ssos * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 231387Ssos * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 241387Ssos * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 251387Ssos * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 261387Ssos * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 271387Ssos * 2850477Speter * $FreeBSD$ 291387Ssos */ 301387Ssos 3118444Sbde#ifndef _MACHINE_PCAUDIOIO_H_ 3218444Sbde#define _MACHINE_PCAUDIOIO_H_ 331387Ssos 3418444Sbde#include <sys/ioccom.h> 3518444Sbde 361387Ssostypedef struct audio_prinfo { 371387Ssos unsigned sample_rate; /* samples per second */ 381387Ssos unsigned channels; /* # of channels (interleaved) */ 391387Ssos unsigned precision; /* sample size in bits */ 401387Ssos unsigned encoding; /* encoding method used */ 411387Ssos 421387Ssos unsigned gain; /* volume level: 0 - 255 */ 431387Ssos unsigned port; /* input/output device */ 441387Ssos unsigned _fill1[4]; 451387Ssos 461387Ssos unsigned samples; /* samples played */ 471387Ssos unsigned eof; /* ?!? */ 481387Ssos unsigned char pause; /* !=0 pause, ==0 continue */ 491387Ssos unsigned char error; /* !=0 if overflow/underflow */ 501387Ssos unsigned char waiting; /* !=0 if others wants access */ 511387Ssos unsigned char _fill2[3]; 521387Ssos 531387Ssos unsigned char open; /* is device open */ 541387Ssos unsigned char active; /* !=0 if sound hardware is active */ 551387Ssos} audio_prinfo_t; 561387Ssos 571387Ssostypedef struct audio_info { 581387Ssos audio_prinfo_t play; 598876Srgrimes audio_prinfo_t record; 601387Ssos unsigned monitor_gain; 611387Ssos unsigned _fill[4]; 621387Ssos} audio_info_t; 631387Ssos 641387Ssos#define AUDIO_ENCODING_ULAW (1) /* u-law encoding */ 651387Ssos#define AUDIO_ENCODING_ALAW (2) /* A-law encoding */ 661387Ssos#define AUDIO_ENCODING_RAW (3) /* linear encoding */ 671387Ssos 681387Ssos#define AUDIO_MIN_GAIN (0) /* minimum volume value */ 691387Ssos#define AUDIO_MAX_GAIN (255) /* maximum volume value */ 701387Ssos 711387Ssos#define AUDIO_INITINFO(i) memset((void*)i, 0xff, sizeof(audio_info_t)) 721387Ssos 731387Ssos#define AUDIO_GETINFO _IOR('A', 1, audio_info_t) 741387Ssos#define AUDIO_SETINFO _IOWR('A', 2, audio_info_t) 751387Ssos#define AUDIO_DRAIN _IO('A', 3) 761387Ssos#define AUDIO_FLUSH _IO('A', 4) 771387Ssos 7817203Sjoerg/* compatibility to /dev/audio */ 7917203Sjoerg#define AUDIO_COMPAT_DRAIN _IO('P', 1) 8017203Sjoerg#define AUDIO_COMPAT_FLUSH _IO('P', 0) 8117203Sjoerg 8218444Sbde#endif /* !_MACHINE_PCAUDIOIO_H_ */ 83