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
28 struct input_dev;
29
30 /**
31 * enum snd_jack_types - Jack types which can be reported
32 * @SND_JACK_HEADPHONE: Headphone
33 * @SND_JACK_MICROPHONE: Microphone
34 * @SND_JACK_HEADSET: Headset
35 * @SND_JACK_LINEOUT: Line out
36 * @SND_JACK_MECHANICAL: Mechanical switch
37 * @SND_JACK_VIDEOOUT: Video out
38 * @SND_JACK_AVOUT: AV (Audio Video) out
39 * @SND_JACK_LINEIN: Line in
40 * @SND_JACK_BTN_0: Button 0
41 * @SND_JACK_BTN_1: Button 1
42 * @SND_JACK_BTN_2: Button 2
43 * @SND_JACK_BTN_3: Button 3
44 * @SND_JACK_BTN_4: Button 4
45 * @SND_JACK_BTN_5: Button 5
46 *
47 * These values are used as a bitmask.
48 *
49 * Note that this must be kept in sync with the lookup table in
50 * sound/core/jack.c.
51 */
52 enum snd_jack_types {
53 SND_JACK_HEADPHONE = 0x0001,
54 SND_JACK_MICROPHONE = 0x0002,
55 SND_JACK_HEADSET = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
56 SND_JACK_LINEOUT = 0x0004,
57 SND_JACK_MECHANICAL = 0x0008, /* If detected separately */
58 SND_JACK_VIDEOOUT = 0x0010,
59 SND_JACK_AVOUT = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
60 SND_JACK_LINEIN = 0x0020,
61
62 /* Kept separate from switches to facilitate implementation */
63 SND_JACK_BTN_0 = 0x4000,
64 SND_JACK_BTN_1 = 0x2000,
65 SND_JACK_BTN_2 = 0x1000,
66 SND_JACK_BTN_3 = 0x0800,
67 SND_JACK_BTN_4 = 0x0400,
68 SND_JACK_BTN_5 = 0x0200,
69 };
70
71 /* Keep in sync with definitions above */
72 #define SND_JACK_SWITCH_TYPES 6
73
74 struct snd_jack {
75 struct list_head kctl_list;
76 struct snd_card *card;
77 const char *id;
78 #ifdef CONFIG_SND_JACK_INPUT_DEV
79 struct input_dev *input_dev;
80 struct mutex input_dev_lock;
81 int registered;
82 int type;
83 char name[100];
84 unsigned int key[6]; /* Keep in sync with definitions above */
85 #endif /* CONFIG_SND_JACK_INPUT_DEV */
86 void *private_data;
87 void (*private_free)(struct snd_jack *);
88 };
89
90 #ifdef CONFIG_SND_JACK
91
92 int snd_jack_new(struct snd_card *card, const char *id, int type,
93 struct snd_jack **jack, bool initial_kctl, bool phantom_jack);
94 int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
95 #ifdef CONFIG_SND_JACK_INPUT_DEV
96 void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
97 int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
98 int keytype);
99 #endif
100 void snd_jack_report(struct snd_jack *jack, int status);
101
102 #else
snd_jack_new(struct snd_card * card,const char * id,int type,struct snd_jack ** jack,bool initial_kctl,bool phantom_jack)103 static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
104 struct snd_jack **jack, bool initial_kctl, bool phantom_jack)
105 {
106 return 0;
107 }
108
snd_jack_add_new_kctl(struct snd_jack * jack,const char * name,int mask)109 static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
110 {
111 return 0;
112 }
113
snd_jack_report(struct snd_jack * jack,int status)114 static inline void snd_jack_report(struct snd_jack *jack, int status)
115 {
116 }
117
118 #endif
119
120 #if !defined(CONFIG_SND_JACK) || !defined(CONFIG_SND_JACK_INPUT_DEV)
snd_jack_set_parent(struct snd_jack * jack,struct device * parent)121 static inline void snd_jack_set_parent(struct snd_jack *jack,
122 struct device *parent)
123 {
124 }
125
snd_jack_set_key(struct snd_jack * jack,enum snd_jack_types type,int keytype)126 static inline int snd_jack_set_key(struct snd_jack *jack,
127 enum snd_jack_types type,
128 int keytype)
129 {
130 return 0;
131 }
132 #endif /* !CONFIG_SND_JACK || !CONFIG_SND_JACK_INPUT_DEV */
133
134 #endif
135