diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/include/bios.h | 4 | ||||
| -rw-r--r-- | src/arch/x86/interface/pcbios/bios_console.c | 12 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/arch/x86/include/bios.h b/src/arch/x86/include/bios.h index 3ba8264ec..6391a4958 100644 --- a/src/arch/x86/include/bios.h +++ b/src/arch/x86/include/bios.h @@ -7,6 +7,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #define BDA_EBDA 0x000e #define BDA_EQUIPMENT_WORD 0x0010 #define BDA_KB0 0x0017 +#define BDA_KB0_RSHIFT 0x01 +#define BDA_KB0_LSHIFT 0x02 #define BDA_KB0_CTRL 0x04 #define BDA_KB0_CAPSLOCK 0x040 #define BDA_FBMS 0x0013 @@ -16,5 +18,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #define BDA_REBOOT_WARM 0x1234 #define BDA_NUM_DRIVES 0x0075 #define BDA_CHAR_HEIGHT 0x0085 +#define BDA_KB2 0x0096 +#define BDA_KB2_RALT 0x08 #endif /* BIOS_H */ diff --git a/src/arch/x86/interface/pcbios/bios_console.c b/src/arch/x86/interface/pcbios/bios_console.c index 2664ac8a5..0220c8564 100644 --- a/src/arch/x86/interface/pcbios/bios_console.c +++ b/src/arch/x86/interface/pcbios/bios_console.c @@ -362,6 +362,7 @@ static const char * bios_ansi_seq ( unsigned int scancode ) { static int bios_getchar ( void ) { uint16_t keypress; uint8_t kb0; + uint8_t kb2; unsigned int scancode; unsigned int character; const char *ansi_seq; @@ -387,6 +388,7 @@ static int bios_getchar ( void ) { scancode = ( keypress >> 8 ); character = ( keypress & 0xff ); get_real ( kb0, BDA_SEG, BDA_KB0 ); + get_real ( kb2, BDA_SEG, BDA_KB2 ); /* If it's a normal character, map (if applicable) and return it */ if ( character && ( character < 0x80 ) ) { @@ -405,6 +407,16 @@ static int bios_getchar ( void ) { character |= KEYMAP_CTRL; if ( kb0 & BDA_KB0_CAPSLOCK ) character |= KEYMAP_CAPSLOCK_REDO; + if ( kb2 & BDA_KB2_RALT ) + character |= KEYMAP_ALTGR; + + /* Treat LShift+RShift as AltGr since many BIOSes will + * not return ASCII characters when AltGr is pressed. + */ + if ( ( kb0 & ( BDA_KB0_LSHIFT | BDA_KB0_RSHIFT ) ) == + ( BDA_KB0_LSHIFT | BDA_KB0_RSHIFT ) ) { + character |= KEYMAP_ALTGR; + } /* Map and return */ return key_remap ( character ); |