| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 |
- /* SPDX-License-Identifier: GPL-2.0-only */
- #ifndef _SPARSE_KEYMAP_H
- #define _SPARSE_KEYMAP_H
- /*
- * Copyright (c) 2009 Dmitry Torokhov
- */
- #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: struct with code/value used by KE_SW and KE_VSW
- * @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 */
|
