1 /*
2 * Mixer Interface - HDA 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
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 *
21 */
22
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <unistd.h>
26 #include <string.h>
27 #include <fcntl.h>
28 #include <sys/ioctl.h>
29 #include <math.h>
30 #include "asoundlib.h"
31 #include "mixer_abst.h"
32 #include "sbase.h"
33
34 static struct sm_elem_ops simple_hda_ops;
35
36 struct melem_sids sids[] = {
37 {
38 .sid = SID_FRONT,
39 .sname = "Front",
40 .sindex = 0,
41 .weight = 1,
42 .chanmap = { 3, 0 },
43 .sops = &simple_hda_ops,
44 }
45 };
46
47 #define SELECTORS (sizeof(selectors)/sizeof(selectors[0]))
48
49 struct helem_selector selectors[] = {
50 {
51 .iface = SND_CTL_ELEM_IFACE_MIXER,
52 .name = "Front Playback Volume",
53 .index = 0,
54 .sid = SID_FRONT,
55 .purpose = PURPOSE_VOLUME,
56 .caps = SM_CAP_PVOLUME,
57 },
58 {
59 .iface = SND_CTL_ELEM_IFACE_MIXER,
60 .name = "Front Playback Switch",
61 .index = 0,
62 .sid = SID_FRONT,
63 .purpose = PURPOSE_SWITCH,
64 .caps = SM_CAP_PSWITCH,
65 }
66 };
67
alsa_mixer_simple_event(snd_mixer_class_t * class,unsigned int mask,snd_hctl_elem_t * helem,snd_mixer_elem_t * melem)68 int alsa_mixer_simple_event(snd_mixer_class_t *class, unsigned int mask,
69 snd_hctl_elem_t *helem, snd_mixer_elem_t *melem)
70 {
71 struct bclass_private *priv = snd_mixer_sbasic_get_private(class);
72 return priv->ops.event(class, mask, helem, melem);
73 }
74
alsa_mixer_simple_init(snd_mixer_class_t * class)75 int alsa_mixer_simple_init(snd_mixer_class_t *class)
76 {
77 struct bclass_base_ops *ops;
78 int err;
79
80 err = mixer_simple_basic_dlopen(class, &ops);
81 if (err < 0)
82 return 0;
83 err = ops->selreg(class, selectors, SELECTORS);
84 if (err < 0)
85 return err;
86 err = ops->sidreg(class, sids, SELECTORS);
87 if (err < 0)
88 return err;
89 return 0;
90 }
91