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#ifndef _IPXE_KEYMAP_H
#define _IPXE_KEYMAP_H
/**
* @file
*
* Keyboard mappings
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <ipxe/tables.h>
/** A remapped key
*
* Represents a mapping from an ASCII character (as interpreted from a
* keyboard scancode by the US-only keyboard driver provided by the
* BIOS) to the appropriate ASCII value for the keyboard layout.
*/
struct keymap_key {
/** Character read from keyboard */
uint8_t from;
/** Character to be used instead */
uint8_t to;
} __attribute__ (( packed ));
/** A keyboard mapping */
struct keymap {
/** Name */
const char *name;
/** Basic remapping table (zero-terminated) */
struct keymap_key *basic;
/** AltGr remapping table (zero-terminated) */
struct keymap_key *altgr;
};
/** Keyboard mapping table */
#define KEYMAP __table ( struct keymap, "keymap" )
/** Define a default keyboard mapping */
#define __keymap_default __table_entry ( KEYMAP, 01 )
/** Define a keyboard mapping */
#define __keymap __table_entry ( KEYMAP, 02 )
/** Mappable character mask */
#define KEYMAP_MASK 0xff
/** Pseudo key flag */
#define KEYMAP_PSEUDO 0x80
/** Ctrl key flag */
#define KEYMAP_CTRL 0x01000000
/** CapsLock key flag */
#define KEYMAP_CAPSLOCK 0x02000000
/** Undo CapsLock key flag
*
* Used when the keyboard driver has already interpreted the CapsLock
* key, in which case the effect needs to be undone before remapping
* in order to correctly handle keyboard mappings that swap alphabetic
* and non-alphabetic keys.
*/
#define KEYMAP_CAPSLOCK_UNDO 0x04000000
/** Undo and redo CapsLock key flags */
#define KEYMAP_CAPSLOCK_REDO ( KEYMAP_CAPSLOCK | KEYMAP_CAPSLOCK_UNDO )
/** AltGr key flag */
#define KEYMAP_ALTGR 0x08000000
extern unsigned int key_remap ( unsigned int character );
extern struct keymap * keymap_find ( const char *name );
extern void keymap_set ( struct keymap *keymap );
#endif /* _IPXE_KEYMAP_H */
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