83ef78be95
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1994 Søren Schmidt
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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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* in this position and unchanged.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_PCAUDIOIO_H_
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#define _MACHINE_PCAUDIOIO_H_
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#include <sys/ioccom.h>
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typedef struct audio_prinfo {
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unsigned sample_rate; /* samples per second */
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unsigned channels; /* # of channels (interleaved) */
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unsigned precision; /* sample size in bits */
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unsigned encoding; /* encoding method used */
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unsigned gain; /* volume level: 0 - 255 */
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unsigned port; /* input/output device */
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unsigned _fill1[4];
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unsigned samples; /* samples played */
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unsigned eof; /* ?!? */
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unsigned char pause; /* !=0 pause, ==0 continue */
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unsigned char error; /* !=0 if overflow/underflow */
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unsigned char waiting; /* !=0 if others wants access */
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unsigned char _fill2[3];
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unsigned char open; /* is device open */
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unsigned char active; /* !=0 if sound hardware is active */
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} audio_prinfo_t;
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typedef struct audio_info {
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audio_prinfo_t play;
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audio_prinfo_t record;
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unsigned monitor_gain;
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unsigned _fill[4];
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} audio_info_t;
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#define AUDIO_ENCODING_ULAW (1) /* u-law encoding */
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#define AUDIO_ENCODING_ALAW (2) /* A-law encoding */
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#define AUDIO_ENCODING_RAW (3) /* linear encoding */
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#define AUDIO_MIN_GAIN (0) /* minimum volume value */
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#define AUDIO_MAX_GAIN (255) /* maximum volume value */
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#define AUDIO_INITINFO(i) memset((void*)i, 0xff, sizeof(audio_info_t))
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#define AUDIO_GETINFO _IOR('A', 1, audio_info_t)
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#define AUDIO_SETINFO _IOWR('A', 2, audio_info_t)
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#define AUDIO_DRAIN _IO('A', 3)
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#define AUDIO_FLUSH _IO('A', 4)
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/* compatibility to /dev/audio */
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#define AUDIO_COMPAT_DRAIN _IO('P', 1)
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#define AUDIO_COMPAT_FLUSH _IO('P', 0)
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#endif /* !_MACHINE_PCAUDIOIO_H_ */
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