mixer.h revision 70944 
1/*
2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/dev/sound/pcm/mixer.h 70944 2001-01-11 23:26:16Z jhb $
27 */
28
29extern int mixer_init(device_t dev, kobj_class_t cls, void *devinfo);
30extern int mixer_uninit(device_t dev);
31extern int mixer_reinit(device_t dev);
32extern int mixer_ioctl(snddev_info *d, u_long cmd, caddr_t arg);
33extern int mixer_busy(snd_mixer *m, int busy);
34extern int mixer_isbusy(snd_mixer *m);
35
36int mixer_hwvol_init(device_t dev);
37void mixer_hwvol_mute(device_t dev);
38void mixer_hwvol_step(device_t dev, int left_step, int right_step);
39
40extern void change_bits(mixer_tab *t, u_char *regval, int dev, int chn, int newval);
41
42void mix_setdevs(snd_mixer *m, u_int32_t v);
43void mix_setrecdevs(snd_mixer *m, u_int32_t v);
44u_int32_t mix_getdevs(snd_mixer *m);
45u_int32_t mix_getrecdevs(snd_mixer *m);
46void *mix_getdevinfo(snd_mixer *m);
47
48#define MIXER_DECLARE(name) DEFINE_CLASS(name, name ## _methods, sizeof(snd_mixer))
49