summaryrefslogtreecommitdiffstats
path: root/sound/pcmcia/vx/vxp_mixer.c
blob: 0f59e4cca56d6beafe7b248a3d5818410b0a5c6c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Driver for Digigram VXpocket soundcards
 *
 * VX-pocket mixer
 *
 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
 */

#include <sound/core.h>
#include <sound/control.h>
#include <sound/tlv.h>
#include "vxpocket.h"

#define MIC_LEVEL_MIN	0
#define MIC_LEVEL_MAX	8

/*
 * mic level control (for VXPocket)
 */
static int vx_mic_level_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = MIC_LEVEL_MAX;
	return 0;
}

static int vx_mic_level_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
	struct snd_vxpocket *chip = to_vxpocket(_chip);
	ucontrol->value.integer.value[0] = chip->mic_level;
	return 0;
}

static int vx_mic_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
	struct snd_vxpocket *chip = to_vxpocket(_chip);
	unsigned int val = ucontrol->value.integer.value[0];

	if (val > MIC_LEVEL_MAX)
		return -EINVAL;
	mutex_lock(&_chip->mixer_mutex);
	if (chip->mic_level != ucontrol->value.integer.value[0]) {
		vx_set_mic_level(_chip, ucontrol->value.integer.value[0]);
		chip->mic_level = ucontrol->value.integer.value[0];
		mutex_unlock(&_chip->mixer_mutex);
		return 1;
	}
	mutex_unlock(&_chip->mixer_mutex);
	return 0;
}

static const DECLARE_TLV_DB_SCALE(db_scale_mic, -21, 3, 0);

static const struct snd_kcontrol_new vx_control_mic_level = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.access =	(SNDRV_CTL_ELEM_ACCESS_READWRITE |
			 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
	.name =		"Mic Capture Volume",
	.info =		vx_mic_level_info,
	.get =		vx_mic_level_get,
	.put =		vx_mic_level_put,
	.tlv = { .p = db_scale_mic },
};

/*
 * mic boost level control (for VXP440)
 */
#define vx_mic_boost_info		snd_ctl_boolean_mono_info

static int vx_mic_boost_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
	struct snd_vxpocket *chip = to_vxpocket(_chip);
	ucontrol->value.integer.value[0] = chip->mic_level;
	return 0;
}

static int vx_mic_boost_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
	struct snd_vxpocket *chip = to_vxpocket(_chip);
	int val = !!ucontrol->value.integer.value[0];
	mutex_lock(&_chip->mixer_mutex);
	if (chip->mic_level != val) {
		vx_set_mic_boost(_chip, val);
		chip->mic_level = val;
		mutex_unlock(&_chip->mixer_mutex);
		return 1;
	}
	mutex_unlock(&_chip->mixer_mutex);
	return 0;
}

static const struct snd_kcontrol_new vx_control_mic_boost = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Mic Boost",
	.info =		vx_mic_boost_info,
	.get =		vx_mic_boost_get,
	.put =		vx_mic_boost_put,
};


int vxp_add_mic_controls(struct vx_core *_chip)
{
	struct snd_vxpocket *chip = to_vxpocket(_chip);
	int err;

	/* mute input levels */
	chip->mic_level = 0;
	switch (_chip->type) {
	case VX_TYPE_VXPOCKET:
		vx_set_mic_level(_chip, 0);
		break;
	case VX_TYPE_VXP440:
		vx_set_mic_boost(_chip, 0);
		break;
	}

	/* mic level */
	switch (_chip->type) {
	case VX_TYPE_VXPOCKET:
		if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_level, chip))) < 0)
			return err;
		break;
	case VX_TYPE_VXP440:
		if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_boost, chip))) < 0)
			return err;
		break;
	}

	return 0;
}