summaryrefslogtreecommitdiffstats
path: root/sound/drivers/pcsp/pcsp_mixer.c
blob: f1e1defc09b1e70beaf32921a3e6124aeab06747 (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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
/*
 * PC-Speaker driver for Linux
 *
 * Mixer implementation.
 * Copyright (C) 2001-2008  Stas Sergeev
 */

#include <sound/core.h>
#include <sound/control.h>
#include "pcsp.h"


static int pcsp_enable_info(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int pcsp_enable_get(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = chip->enable;
	return 0;
}

static int pcsp_enable_put(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
	int changed = 0;
	int enab = ucontrol->value.integer.value[0];
	if (enab != chip->enable) {
		chip->enable = enab;
		changed = 1;
	}
	return changed;
}

static int pcsp_treble_info(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_info *uinfo)
{
	struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = chip->max_treble + 1;
	if (uinfo->value.enumerated.item > chip->max_treble)
		uinfo->value.enumerated.item = chip->max_treble;
	sprintf(uinfo->value.enumerated.name, "%lu",
		(unsigned long)PCSP_CALC_RATE(uinfo->value.enumerated.item));
	return 0;
}

static int pcsp_treble_get(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
	ucontrol->value.enumerated.item[0] = chip->treble;
	return 0;
}

static int pcsp_treble_put(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
	int changed = 0;
	int treble = ucontrol->value.enumerated.item[0];
	if (treble != chip->treble) {
		chip->treble = treble;
#if PCSP_DEBUG
		printk(KERN_INFO "PCSP: rate set to %li\n", PCSP_RATE());
#endif
		changed = 1;
	}
	return changed;
}

static int pcsp_pcspkr_info(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int pcsp_pcspkr_get(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = chip->pcspkr;
	return 0;
}

static int pcsp_pcspkr_put(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
	int changed = 0;
	int spkr = ucontrol->value.integer.value[0];
	if (spkr != chip->pcspkr) {
		chip->pcspkr = spkr;
		changed = 1;
	}
	return changed;
}

#define PCSP_MIXER_CONTROL(ctl_type, ctl_name) \
{ \
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER, \
	.name =		ctl_name, \
	.info =		pcsp_##ctl_type##_info, \
	.get =		pcsp_##ctl_type##_get, \
	.put =		pcsp_##ctl_type##_put, \
}

static struct snd_kcontrol_new snd_pcsp_controls_pcm[] = {
	PCSP_MIXER_CONTROL(enable, "Master Playback Switch"),
	PCSP_MIXER_CONTROL(treble, "BaseFRQ Playback Volume"),
};

static struct snd_kcontrol_new snd_pcsp_controls_spkr[] = {
	PCSP_MIXER_CONTROL(pcspkr, "Beep Playback Switch"),
};

static int snd_pcsp_ctls_add(struct snd_pcsp *chip,
			     struct snd_kcontrol_new *ctls, int num)
{
	int i, err;
	struct snd_card *card = chip->card;
	for (i = 0; i < num; i++) {
		err = snd_ctl_add(card, snd_ctl_new1(ctls + i, chip));
		if (err < 0)
			return err;
	}
	return 0;
}

int snd_pcsp_new_mixer(struct snd_pcsp *chip, int nopcm)
{
	int err;
	struct snd_card *card = chip->card;

	if (!nopcm) {
		err = snd_pcsp_ctls_add(chip, snd_pcsp_controls_pcm,
			ARRAY_SIZE(snd_pcsp_controls_pcm));
		if (err < 0)
			return err;
	}
	err = snd_pcsp_ctls_add(chip, snd_pcsp_controls_spkr,
		ARRAY_SIZE(snd_pcsp_controls_spkr));
	if (err < 0)
		return err;

	strcpy(card->mixername, "PC-Speaker");

	return 0;
}
OpenPOWER on IntegriCloud