From f98cf7d70f3d32e19ca6aabbd9601c0d432ea67f Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Wed, 16 Mar 2011 03:17:34 +0000 Subject: [console] Add facility for rudimentary keyboard mapping Allow for remapping of ASCII characters returned by the BIOS, using a map consisting of (from,to) pairs. Signed-off-by: Michael Brown --- src/arch/i386/firmware/pcbios/bios_console.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) (limited to 'src/arch') diff --git a/src/arch/i386/firmware/pcbios/bios_console.c b/src/arch/i386/firmware/pcbios/bios_console.c index 55ab21bbb..1ecd07ddd 100644 --- a/src/arch/i386/firmware/pcbios/bios_console.c +++ b/src/arch/i386/firmware/pcbios/bios_console.c @@ -22,6 +22,7 @@ FILE_LICENCE ( GPL2_OR_LATER ); #include #include #include +#include #define ATTR_BOLD 0x08 @@ -228,6 +229,22 @@ static const char * scancode_to_ansi_seq ( unsigned int scancode ) { return NULL; } +/** + * Map a key + * + * @v character Character read from console + * @ret character Mapped character + */ +static int bios_keymap ( unsigned int character ) { + struct key_mapping *mapping; + + for_each_table_entry ( mapping, KEYMAP ) { + if ( mapping->from == character ) + return mapping->to; + } + return character; +} + /** * Get character from BIOS console * @@ -251,9 +268,9 @@ static int bios_getchar ( void ) { : "=a" ( keypress ) : "a" ( 0x1000 ) ); character = ( keypress & 0xff ); - /* If it's a normal character, just return it */ + /* If it's a normal character, just map and return it */ if ( character && ( character < 0x80 ) ) - return character; + return bios_keymap ( character ); /* Otherwise, check for a special key that we know about */ if ( ( ansi_seq = scancode_to_ansi_seq ( keypress >> 8 ) ) ) { -- cgit v1.2.3-55-g7522