Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[linux-2.6-block.git] / sound / pcmcia / vx / vxp_mixer.c
CommitLineData
1da177e4
LT
1/*
2 * Driver for Digigram VXpocket soundcards
3 *
4 * VX-pocket mixer
5 *
6 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
1da177e4
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23#include <sound/core.h>
24#include <sound/control.h>
d0ae4847 25#include <sound/tlv.h>
1da177e4
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26#include "vxpocket.h"
27
28#define MIC_LEVEL_MIN 0
29#define MIC_LEVEL_MAX 8
30
31/*
32 * mic level control (for VXPocket)
33 */
af26367f 34static int vx_mic_level_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
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35{
36 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
37 uinfo->count = 1;
38 uinfo->value.integer.min = 0;
39 uinfo->value.integer.max = MIC_LEVEL_MAX;
40 return 0;
41}
42
af26367f 43static int vx_mic_level_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 44{
af26367f 45 struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
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46 struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
47 ucontrol->value.integer.value[0] = chip->mic_level;
48 return 0;
49}
50
af26367f 51static int vx_mic_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 52{
af26367f 53 struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
1da177e4 54 struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
d05ab185
TI
55 unsigned int val = ucontrol->value.integer.value[0];
56
57 if (val > MIC_LEVEL_MAX)
58 return -EINVAL;
12aa7579 59 mutex_lock(&_chip->mixer_mutex);
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60 if (chip->mic_level != ucontrol->value.integer.value[0]) {
61 vx_set_mic_level(_chip, ucontrol->value.integer.value[0]);
62 chip->mic_level = ucontrol->value.integer.value[0];
12aa7579 63 mutex_unlock(&_chip->mixer_mutex);
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64 return 1;
65 }
12aa7579 66 mutex_unlock(&_chip->mixer_mutex);
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67 return 0;
68}
69
0cb29ea0 70static const DECLARE_TLV_DB_SCALE(db_scale_mic, -21, 3, 0);
d0ae4847 71
af26367f 72static struct snd_kcontrol_new vx_control_mic_level = {
1da177e4 73 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
d0ae4847
TI
74 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
75 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
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76 .name = "Mic Capture Volume",
77 .info = vx_mic_level_info,
78 .get = vx_mic_level_get,
79 .put = vx_mic_level_put,
d0ae4847 80 .tlv = { .p = db_scale_mic },
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81};
82
83/*
84 * mic boost level control (for VXP440)
85 */
a5ce8890 86#define vx_mic_boost_info snd_ctl_boolean_mono_info
1da177e4 87
af26367f 88static int vx_mic_boost_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 89{
af26367f 90 struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
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91 struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
92 ucontrol->value.integer.value[0] = chip->mic_level;
93 return 0;
94}
95
af26367f 96static int vx_mic_boost_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 97{
af26367f 98 struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
1da177e4 99 struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
d05ab185 100 int val = !!ucontrol->value.integer.value[0];
12aa7579 101 mutex_lock(&_chip->mixer_mutex);
d05ab185
TI
102 if (chip->mic_level != val) {
103 vx_set_mic_boost(_chip, val);
104 chip->mic_level = val;
12aa7579 105 mutex_unlock(&_chip->mixer_mutex);
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106 return 1;
107 }
12aa7579 108 mutex_unlock(&_chip->mixer_mutex);
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109 return 0;
110}
111
af26367f 112static struct snd_kcontrol_new vx_control_mic_boost = {
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113 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
114 .name = "Mic Boost",
115 .info = vx_mic_boost_info,
116 .get = vx_mic_boost_get,
117 .put = vx_mic_boost_put,
118};
119
120
af26367f 121int vxp_add_mic_controls(struct vx_core *_chip)
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122{
123 struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
124 int err;
125
126 /* mute input levels */
127 chip->mic_level = 0;
128 switch (_chip->type) {
129 case VX_TYPE_VXPOCKET:
130 vx_set_mic_level(_chip, 0);
131 break;
132 case VX_TYPE_VXP440:
133 vx_set_mic_boost(_chip, 0);
134 break;
135 }
136
137 /* mic level */
138 switch (_chip->type) {
139 case VX_TYPE_VXPOCKET:
140 if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_level, chip))) < 0)
141 return err;
142 break;
143 case VX_TYPE_VXP440:
144 if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_boost, chip))) < 0)
145 return err;
146 break;
147 }
148
149 return 0;
150}
151