From f2a59d5973da2041f93264609698b9b3f4ec101b Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Mon, 14 Feb 2022 16:31:08 +0000 Subject: [console] Centralise handling of key modifiers Handle Ctrl and CapsLock key modifiers within key_remap(), to provide consistent behaviour across different console types. Signed-off-by: Michael Brown --- src/include/ipxe/keymap.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'src/include') diff --git a/src/include/ipxe/keymap.h b/src/include/ipxe/keymap.h index a64ab9cd4..3da25190b 100644 --- a/src/include/ipxe/keymap.h +++ b/src/include/ipxe/keymap.h @@ -40,9 +40,30 @@ struct keymap { /** Define a keyboard mapping */ #define __keymap __table_entry ( KEYMAP, 01 ) +/** Mappable character mask */ +#define KEYMAP_MASK 0xff + /** Pseudo key flag */ #define KEYMAP_PSEUDO 0x80 +/** Ctrl key flag */ +#define KEYMAP_CTRL 0x0100 + +/** CapsLock key flag */ +#define KEYMAP_CAPSLOCK 0x0200 + +/** 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 0x0400 + +/** Undo and redo CapsLock key flags */ +#define KEYMAP_CAPSLOCK_REDO ( KEYMAP_CAPSLOCK | KEYMAP_CAPSLOCK_UNDO ) + extern unsigned int key_remap ( unsigned int character ); #endif /* _IPXE_KEYMAP_H */ -- cgit v1.2.3-55-g7522