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| author | Joshua Cov <joshuacov@googlemail.com> | 2012-04-13 21:08:26 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-05-08 14:19:41 -0700 |
| commit | b2d0b7a061bfddd27155c7dcd53f365d9dc0c7c3 (patch) | |
| tree | 8063c6df479723b7adc509ee2aad728889faa9a4 /arch/x86/include | |
| parent | c2c21e9bb17549e8add4ff76931bcec2e2d3ad48 (diff) | |
| download | op-kernel-dev-b2d0b7a061bfddd27155c7dcd53f365d9dc0c7c3.zip op-kernel-dev-b2d0b7a061bfddd27155c7dcd53f365d9dc0c7c3.tar.gz | |
keyboard: Use BIOS Keyboard variable to set Numlock
The PC BIOS does provide a NUMLOCK flag containing the desired state
of this LED. This patch sets the current state according to the data
in the bios.
[ hpa: fixed __weak declaration without definition, changed "inline"
to "static inline" ]
Signed-Off-By: Joshua Cov <joshuacov@googlemail.com>
Link: http://lkml.kernel.org/r/CAKL7Q7rvq87TNS1T_Km8fW_5OzS%2BSbYazLXKxW-6ztOxo3zorg@mail.gmail.com
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/bootparam.h | 3 | ||||
| -rw-r--r-- | arch/x86/include/asm/kbdleds.h | 17 |
2 files changed, 19 insertions, 1 deletions
diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h index 2f90c51..eb45aa6 100644 --- a/arch/x86/include/asm/bootparam.h +++ b/arch/x86/include/asm/bootparam.h @@ -112,7 +112,8 @@ struct boot_params { __u8 e820_entries; /* 0x1e8 */ __u8 eddbuf_entries; /* 0x1e9 */ __u8 edd_mbr_sig_buf_entries; /* 0x1ea */ - __u8 _pad6[6]; /* 0x1eb */ + __u8 kbd_status; /* 0x1eb */ + __u8 _pad6[5]; /* 0x1ec */ struct setup_header hdr; /* setup header */ /* 0x1f1 */ __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)]; __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ diff --git a/arch/x86/include/asm/kbdleds.h b/arch/x86/include/asm/kbdleds.h new file mode 100644 index 0000000..f27ac5f --- /dev/null +++ b/arch/x86/include/asm/kbdleds.h @@ -0,0 +1,17 @@ +#ifndef _ASM_X86_KBDLEDS_H +#define _ASM_X86_KBDLEDS_H + +/* + * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on. + * This seems a good reason to start with NumLock off. That's why on X86 we + * ask the bios for the correct state. + */ + +#include <asm/setup.h> + +static inline int kbd_defleds(void) +{ + return boot_params.kbd_status & 0x20 ? (1 << VC_NUMLOCK) : 0; +} + +#endif /* _ASM_X86_KBDLEDS_H */ |
