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Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz
[android-x86/external-alsa-lib.git] / modules / mixer / simple / ac97.c
1 /*
2  *  Mixer Interface - AC97 simple abstact module
3  *  Copyright (c) 2005 by Jaroslav Kysela <perex@perex.cz>
4  *
5  *
6  *   This library is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU Lesser General Public License as
8  *   published by the Free Software Foundation; either version 2.1 of
9  *   the License, or (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU Lesser General Public License for more details.
15  *
16  *   You should have received a copy of the GNU Lesser General Public
17  *   License along with this library; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <unistd.h>
25 #include <string.h>
26 #include <fcntl.h>
27 #include <sys/ioctl.h>
28 #include <math.h>
29 #include "asoundlib.h"
30 #include "mixer_abst.h"
31 #include "sbase.h"
32
33 static struct sm_elem_ops simple_ac97_ops;
34
35 struct melem_sids sids[] = {
36         {
37                 .sid    = SID_MASTER,
38                 .sname  = "Master",
39                 .sindex = 0,
40                 .weight = 1,
41                 .chanmap = { 3, 0 },
42                 .sops = &simple_ac97_ops,
43         }
44 };
45
46 #define SELECTORS (sizeof(selectors)/sizeof(selectors[0]))
47
48 struct helem_selector selectors[] = {
49         {
50                 .iface =        SND_CTL_ELEM_IFACE_MIXER,
51                 .name =         "Master Playback Volume",
52                 .index =        0,
53                 .sid =          SID_MASTER,
54                 .purpose =      PURPOSE_VOLUME,
55                 .caps =         SM_CAP_PVOLUME,
56         },
57         {
58                 .iface =        SND_CTL_ELEM_IFACE_MIXER,
59                 .name =         "Master Playback Switch",
60                 .index =        0,
61                 .sid =          SID_MASTER,
62                 .purpose =      PURPOSE_SWITCH,
63                 .caps =         SM_CAP_PSWITCH,
64         }
65 };
66
67 int alsa_mixer_simple_event(snd_mixer_class_t *class, unsigned int mask,
68                             snd_hctl_elem_t *helem, snd_mixer_elem_t *melem)
69 {
70         struct bclass_private *priv = snd_mixer_sbasic_get_private(class);
71         return priv->ops.event(class, mask, helem, melem);
72 }
73
74 int alsa_mixer_simple_init(snd_mixer_class_t *class)
75 {
76         struct bclass_base_ops *ops;
77         int err;
78         
79         err = mixer_simple_basic_dlopen(class, &ops);
80         if (err < 0)
81                 return 0;
82         err = ops->selreg(class, selectors, SELECTORS);
83         if (err < 0)
84                 return err;
85         err = ops->sidreg(class, sids, SELECTORS);
86         if (err < 0)
87                 return err;
88         return 0;
89 }