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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-23 11:16:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-23 11:16:40 -0700
commit44bc40e1489622234169786b0ad5a1f4a01e1090 (patch)
treecd247a6f130b8993e92ac62f76ced2b023491d09 /arch/x86/boot
parent02171b4a7c5b555d08c3321332e0c45776518276 (diff)
parentead91d4b8c3b1fb08a73aaa4a191230ecf717ee0 (diff)
downloadop-kernel-dev-44bc40e1489622234169786b0ad5a1f4a01e1090.zip
op-kernel-dev-44bc40e1489622234169786b0ad5a1f4a01e1090.tar.gz
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform changes from Ingo Molnar: "This tree includes assorted platform driver updates and a preparatory series for a platform with custom DMA remapping semantics (sta2x11 I/O hub)." * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/vsmp: Fix number of CPUs when vsmp is disabled keyboard: Use BIOS Keyboard variable to set Numlock x86/olpc/xo1/sci: Report RTC wakeup events x86/olpc/xo1/sci: Produce wakeup events for buttons and switches x86, platform: Initial support for sta2x11 I/O hub x86: Introduce CONFIG_X86_DMA_REMAP x86-32: Introduce CONFIG_X86_DEV_DMA_OPS
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/main.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c
index 40358c8..cf6083d 100644
--- a/arch/x86/boot/main.c
+++ b/arch/x86/boot/main.c
@@ -57,14 +57,20 @@ static void copy_boot_params(void)
}
/*
- * Set the keyboard repeat rate to maximum. Unclear why this
+ * Query the keyboard lock status as given by the BIOS, and
+ * set the keyboard repeat rate to maximum. Unclear why the latter
* is done here; this might be possible to kill off as stale code.
*/
-static void keyboard_set_repeat(void)
+static void keyboard_init(void)
{
- struct biosregs ireg;
+ struct biosregs ireg, oreg;
initregs(&ireg);
- ireg.ax = 0x0305;
+
+ ireg.ah = 0x02; /* Get keyboard status */
+ intcall(0x16, &ireg, &oreg);
+ boot_params.kbd_status = oreg.al;
+
+ ireg.ax = 0x0305; /* Set keyboard repeat rate */
intcall(0x16, &ireg, NULL);
}
@@ -151,8 +157,8 @@ void main(void)
/* Detect memory layout */
detect_memory();
- /* Set keyboard repeat rate (why?) */
- keyboard_set_repeat();
+ /* Set keyboard repeat rate (why?) and query the lock flags */
+ keyboard_init();
/* Query MCA information */
query_mca();
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