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Merge "msm: pcie: Add proper check before accessing variables"
[sagit-ice-cold/kernel_xiaomi_msm8998.git] / 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
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         SND_JACK_OC_HPHL        = 0x0040,
62         SND_JACK_OC_HPHR        = 0x0080,
63         SND_JACK_UNSUPPORTED    = 0x0100,
64         SND_JACK_MICROPHONE2    = 0x0200,
65         SND_JACK_ANC_HEADPHONE = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
66                                  SND_JACK_MICROPHONE2,
67
68         /* Kept separate from switches to facilitate implementation */
69         SND_JACK_BTN_0          = 0x8000,
70         SND_JACK_BTN_1          = 0x4000,
71         SND_JACK_BTN_2          = 0x2000,
72         SND_JACK_BTN_3          = 0x1000,
73         SND_JACK_BTN_4          = 0x0800,
74         SND_JACK_BTN_5          = 0x0400,
75 };
76
77 /* Keep in sync with definitions above */
78 #define SND_JACK_SWITCH_TYPES 6
79
80 struct snd_jack {
81         struct input_dev *input_dev;
82         struct list_head kctl_list;
83         struct snd_card *card;
84         int registered;
85         int type;
86         const char *id;
87         char name[100];
88         unsigned int key[6];   /* Keep in sync with definitions above */
89         void *private_data;
90         void (*private_free)(struct snd_jack *);
91 };
92
93 #ifdef CONFIG_SND_JACK
94
95 int snd_jack_new(struct snd_card *card, const char *id, int type,
96                  struct snd_jack **jack, bool initial_kctl, bool phantom_jack);
97 int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
98 void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
99 int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
100                      int keytype);
101
102 void snd_jack_report(struct snd_jack *jack, int status);
103
104 #else
105 static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
106                                struct snd_jack **jack, bool initial_kctl, bool phantom_jack)
107 {
108         return 0;
109 }
110
111 static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
112 {
113         return 0;
114 }
115
116 static inline void snd_jack_set_parent(struct snd_jack *jack,
117                                        struct device *parent)
118 {
119 }
120
121 static inline int snd_jack_set_key(struct snd_jack *jack,
122                                    enum snd_jack_types type,
123                                    int keytype)
124 {
125         return 0;
126 }
127
128 static inline void snd_jack_report(struct snd_jack *jack, int status)
129 {
130 }
131
132 #endif
133
134 #endif