1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 #ifndef __SOUND_JACK_H
3 #define __SOUND_JACK_H
4
5 /*
6 * Jack abstraction layer
7 *
8 * Copyright 2008 Wolfson Microelectronics plc
9 */
10
11 #include <sound/core.h>
12
13 struct input_dev;
14
15 /**
16 * enum snd_jack_types - Jack types which can be reported
17 * @SND_JACK_HEADPHONE: Headphone
18 * @SND_JACK_MICROPHONE: Microphone
19 * @SND_JACK_HEADSET: Headset
20 * @SND_JACK_LINEOUT: Line out
21 * @SND_JACK_MECHANICAL: Mechanical switch
22 * @SND_JACK_VIDEOOUT: Video out
23 * @SND_JACK_AVOUT: AV (Audio Video) out
24 * @SND_JACK_LINEIN: Line in
25 * @SND_JACK_USB: USB audio device
26 * @SND_JACK_BTN_0: Button 0
27 * @SND_JACK_BTN_1: Button 1
28 * @SND_JACK_BTN_2: Button 2
29 * @SND_JACK_BTN_3: Button 3
30 * @SND_JACK_BTN_4: Button 4
31 * @SND_JACK_BTN_5: Button 5
32 *
33 * These values are used as a bitmask.
34 *
35 * Note that this must be kept in sync with the lookup table in
36 * sound/core/jack.c.
37 */
38 enum snd_jack_types {
39 SND_JACK_HEADPHONE = 0x0001,
40 SND_JACK_MICROPHONE = 0x0002,
41 SND_JACK_HEADSET = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
42 SND_JACK_LINEOUT = 0x0004,
43 SND_JACK_MECHANICAL = 0x0008, /* If detected separately */
44 SND_JACK_VIDEOOUT = 0x0010,
45 SND_JACK_AVOUT = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
46 SND_JACK_LINEIN = 0x0020,
47 SND_JACK_USB = 0x0040,
48
49 /* Kept separate from switches to facilitate implementation */
50 SND_JACK_BTN_0 = 0x4000,
51 SND_JACK_BTN_1 = 0x2000,
52 SND_JACK_BTN_2 = 0x1000,
53 SND_JACK_BTN_3 = 0x0800,
54 SND_JACK_BTN_4 = 0x0400,
55 SND_JACK_BTN_5 = 0x0200,
56 };
57
58 /* Keep in sync with definitions above */
59 #define SND_JACK_SWITCH_TYPES 7
60
61 struct snd_jack {
62 struct list_head kctl_list;
63 struct snd_card *card;
64 const char *id;
65 #ifdef CONFIG_SND_JACK_INPUT_DEV
66 struct input_dev *input_dev;
67 struct mutex input_dev_lock;
68 int registered;
69 int type;
70 char name[100];
71 unsigned int key[6]; /* Keep in sync with definitions above */
72 #endif /* CONFIG_SND_JACK_INPUT_DEV */
73 int hw_status_cache;
74 void *private_data;
75 void (*private_free)(struct snd_jack *);
76 };
77
78 #ifdef CONFIG_SND_JACK
79
80 int snd_jack_new(struct snd_card *card, const char *id, int type,
81 struct snd_jack **jack, bool initial_kctl, bool phantom_jack);
82 int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
83 #ifdef CONFIG_SND_JACK_INPUT_DEV
84 int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
85 int keytype);
86 #endif
87 void snd_jack_report(struct snd_jack *jack, int status);
88
89 #else
snd_jack_new(struct snd_card * card,const char * id,int type,struct snd_jack ** jack,bool initial_kctl,bool phantom_jack)90 static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
91 struct snd_jack **jack, bool initial_kctl, bool phantom_jack)
92 {
93 return 0;
94 }
95
snd_jack_add_new_kctl(struct snd_jack * jack,const char * name,int mask)96 static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
97 {
98 return 0;
99 }
100
snd_jack_report(struct snd_jack * jack,int status)101 static inline void snd_jack_report(struct snd_jack *jack, int status)
102 {
103 }
104
105 #endif
106
107 #if !defined(CONFIG_SND_JACK) || !defined(CONFIG_SND_JACK_INPUT_DEV)
snd_jack_set_key(struct snd_jack * jack,enum snd_jack_types type,int keytype)108 static inline int snd_jack_set_key(struct snd_jack *jack,
109 enum snd_jack_types type,
110 int keytype)
111 {
112 return 0;
113 }
114 #endif /* !CONFIG_SND_JACK || !CONFIG_SND_JACK_INPUT_DEV */
115
116 #endif
117