diff options
Diffstat (limited to 'include/linux/input/sparse-keymap.h')
-rw-r--r-- | include/linux/input/sparse-keymap.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/linux/input/sparse-keymap.h b/include/linux/input/sparse-keymap.h new file mode 100644 index 000000000000..52db62064c6e --- /dev/null +++ b/include/linux/input/sparse-keymap.h | |||
@@ -0,0 +1,62 @@ | |||
1 | #ifndef _SPARSE_KEYMAP_H | ||
2 | #define _SPARSE_KEYMAP_H | ||
3 | |||
4 | /* | ||
5 | * Copyright (c) 2009 Dmitry Torokhov | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify it | ||
8 | * under the terms of the GNU General Public License version 2 as published by | ||
9 | * the Free Software Foundation. | ||
10 | */ | ||
11 | |||
12 | #define KE_END 0 /* Indicates end of keymap */ | ||
13 | #define KE_KEY 1 /* Ordinary key/button */ | ||
14 | #define KE_SW 2 /* Switch (predetermined value) */ | ||
15 | #define KE_VSW 3 /* Switch (value supplied at runtime) */ | ||
16 | #define KE_IGNORE 4 /* Known entry that should be ignored */ | ||
17 | #define KE_LAST KE_IGNORE | ||
18 | |||
19 | /** | ||
20 | * struct key_entry - keymap entry for use in sparse keymap | ||
21 | * @type: Type of the key entry (KE_KEY, KE_SW, KE_VSW, KE_END); | ||
22 | * drivers are allowed to extend the list with their own | ||
23 | * private definitions. | ||
24 | * @code: Device-specific data identifying the button/switch | ||
25 | * @keycode: KEY_* code assigned to a key/button | ||
26 | * @sw.code: SW_* code assigned to a switch | ||
27 | * @sw.value: Value that should be sent in an input even when KE_SW | ||
28 | * switch is toggled. KE_VSW switches ignore this field and | ||
29 | * expect driver to supply value for the event. | ||
30 | * | ||
31 | * This structure defines an entry in a sparse keymap used by some | ||
32 | * input devices for which traditional table-based approach is not | ||
33 | * suitable. | ||
34 | */ | ||
35 | struct key_entry { | ||
36 | int type; /* See KE_* above */ | ||
37 | u32 code; | ||
38 | union { | ||
39 | u16 keycode; /* For KE_KEY */ | ||
40 | struct { /* For KE_SW, KE_VSW */ | ||
41 | u8 code; | ||
42 | u8 value; /* For KE_SW, ignored by KE_VSW */ | ||
43 | } sw; | ||
44 | }; | ||
45 | }; | ||
46 | |||
47 | struct key_entry *sparse_keymap_entry_from_scancode(struct input_dev *dev, | ||
48 | unsigned int code); | ||
49 | struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev, | ||
50 | unsigned int code); | ||
51 | int sparse_keymap_setup(struct input_dev *dev, | ||
52 | const struct key_entry *keymap, | ||
53 | int (*setup)(struct input_dev *, struct key_entry *)); | ||
54 | void sparse_keymap_free(struct input_dev *dev); | ||
55 | |||
56 | void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *ke, | ||
57 | unsigned int value, bool autorelease); | ||
58 | |||
59 | bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code, | ||
60 | unsigned int value, bool autorelease); | ||
61 | |||
62 | #endif /* _SPARSE_KEYMAP_H */ | ||