Root/include/sound/jack.h

1#ifndef __SOUND_JACK_H
2#define __SOUND_JACK_H
3
4/*
5 * Jack abstraction layer
6 *
7 * Copyright 2008 Wolfson Microelectronics plc
8 *
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26#include <sound/core.h>
27
28struct input_dev;
29
30/**
31 * Jack types which can be reported. These values are used as a
32 * bitmask.
33 *
34 * Note that this must be kept in sync with the lookup table in
35 * sound/core/jack.c.
36 */
37enum snd_jack_types {
38    SND_JACK_HEADPHONE = 0x0001,
39    SND_JACK_MICROPHONE = 0x0002,
40    SND_JACK_HEADSET = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
41    SND_JACK_LINEOUT = 0x0004,
42    SND_JACK_MECHANICAL = 0x0008, /* If detected separately */
43    SND_JACK_VIDEOOUT = 0x0010,
44    SND_JACK_AVOUT = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
45    SND_JACK_LINEIN = 0x0020,
46
47    /* Kept separate from switches to facilitate implementation */
48    SND_JACK_BTN_0 = 0x4000,
49    SND_JACK_BTN_1 = 0x2000,
50    SND_JACK_BTN_2 = 0x1000,
51    SND_JACK_BTN_3 = 0x0800,
52    SND_JACK_BTN_4 = 0x0400,
53    SND_JACK_BTN_5 = 0x0200,
54};
55
56/* Keep in sync with definitions above */
57#define SND_JACK_SWITCH_TYPES 6
58
59struct snd_jack {
60    struct input_dev *input_dev;
61    int registered;
62    int type;
63    const char *id;
64    char name[100];
65    unsigned int key[6]; /* Keep in sync with definitions above */
66    void *private_data;
67    void (*private_free)(struct snd_jack *);
68};
69
70#ifdef CONFIG_SND_JACK
71
72int snd_jack_new(struct snd_card *card, const char *id, int type,
73         struct snd_jack **jack);
74void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
75int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
76             int keytype);
77
78void snd_jack_report(struct snd_jack *jack, int status);
79
80#else
81
82static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
83                   struct snd_jack **jack)
84{
85    return 0;
86}
87
88static inline void snd_jack_set_parent(struct snd_jack *jack,
89                       struct device *parent)
90{
91}
92
93static inline void snd_jack_report(struct snd_jack *jack, int status)
94{
95}
96
97#endif
98
99#endif
100

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