#ifndef _SPARSE_KEYMAP_H #define _SPARSE_KEYMAP_H /* * Copyright (c) 2009 Dmitry Torokhov * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ #define KE_END 0 /* Indicates end of keymap */ #define KE_KEY 1 /* Ordinary key/button */ #define KE_SW 2 /* Switch (predetermined value) */ #define KE_VSW 3 /* Switch (value supplied at runtime) */ #define KE_IGNORE 4 /* Known entry that should be ignored */ #define KE_LAST KE_IGNORE /** * struct key_entry - keymap entry for use in sparse keymap * @type: Type of the key entry (KE_KEY, KE_SW, KE_VSW, KE_END); * drivers are allowed to extend the list with their own * private definitions. * @code: Device-specific data identifying the button/switch * @keycode: KEY_* code assigned to a key/button * @sw.code: SW_* code assigned to a switch * @sw.value: Value that should be sent in an input even when KE_SW * switch is toggled. KE_VSW switches ignore this field and * expect driver to supply value for the event. * * This structure defines an entry in a sparse keymap used by some * input devices for which traditional table-based approach is not * suitable. */ struct key_entry { int type; /* See KE_* above */ u32 code; union { u16 keycode; /* For KE_KEY */ struct { /* For KE_SW, KE_VSW */ u8 code; u8 value; /* For KE_SW, ignored by KE_VSW */ } sw; }; }; struct key_entry *sparse_keymap_entry_from_scancode(struct input_dev *dev, unsigned int code); struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev, unsigned int code); int sparse_keymap_setup(struct input_dev *dev, const struct key_entry *keymap, int (*setup)(struct input_dev *, struct key_entry *)); void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *ke, unsigned int value, bool autorelease); bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code, unsigned int value, bool autorelease); #endif /* _SPARSE_KEYMAP_H */
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