xref: /freebsd/sys/dev/sound/pcm/mixer_if.m (revision d0b2dbfa) 
1#-
2# KOBJ
3#
4# Copyright (c) 2000 Cameron Grant <cg@freebsd.org>
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15#
16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26# SUCH DAMAGE.
27#
28#
29
30#include <dev/sound/pcm/sound.h>
31
32INTERFACE mixer;
33
34CODE {
35
36	static int
37	mixer_noreinit(struct snd_mixer *m)
38	{
39		return 0;
40	}
41
42};
43
44METHOD int init {
45	struct snd_mixer *m;
46};
47
48METHOD int reinit {
49	struct snd_mixer *m;
50} DEFAULT mixer_noreinit;
51
52METHOD int uninit {
53	struct snd_mixer *m;
54};
55
56METHOD int set {
57	struct snd_mixer *m;
58	unsigned dev;
59	unsigned left;
60	unsigned right;
61};
62
63METHOD u_int32_t setrecsrc {
64	struct snd_mixer *m;
65	u_int32_t src;
66};
67