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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-22 16:51:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-22 16:51:56 -0700 |
| commit | a99a7d1436f9375662f35ccac8f1a1e1b0302a11 (patch) | |
| tree | 0b3f411f6b1c4256063cf1d53773110f5a5f7482 /include | |
| parent | Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip (diff) | |
| parent | mips: Fix i8253 clockevent fallout (diff) | |
| download | linux-dev-a99a7d1436f9375662f35ccac8f1a1e1b0302a11.tar.xz linux-dev-a99a7d1436f9375662f35ccac8f1a1e1b0302a11.zip | |
Merge branch 'timers-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
mips: Fix i8253 clockevent fallout
i8253: Cleanup outb/inb magic
arm: Footbridge: Use common i8253 clockevent
mips: Use common i8253 clockevent
x86: Use common i8253 clockevent
i8253: Create common clockevent implementation
i8253: Export i8253_lock unconditionally
pcpskr: MIPS: Make config dependencies finer grained
pcspkr: Cleanup Kconfig dependencies
i8253: Move remaining content and delete asm/i8253.h
i8253: Consolidate definitions of PIT_LATCH
x86: i8253: Consolidate definitions of global_clock_event
i8253: Alpha, PowerPC: Remove unused asm/8253pit.h
alpha: i8253: Cleanup remaining users of i8253pit.h
i8253: Remove I8253_LOCK config
i8253: Make pcsp sound driver use the shared i8253_lock
i8253: Make pcspkr input driver use the shared i8253_lock
i8253: Consolidate all kernel definitions of i8253_lock
i8253: Unify all kernel declarations of i8253_lock
i8253: Create linux/i8253.h and use it in all 8253 related files
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/i8253.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/i8253.h b/include/linux/i8253.h new file mode 100644 index 000000000000..e6bb36a97519 --- /dev/null +++ b/include/linux/i8253.h @@ -0,0 +1,29 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Machine specific IO port address definition for generic. + * Written by Osamu Tomita <tomita@cinet.co.jp> + */ +#ifndef __LINUX_I8253_H +#define __LINUX_I8253_H + +#include <linux/param.h> +#include <linux/spinlock.h> +#include <linux/timex.h> + +/* i8253A PIT registers */ +#define PIT_MODE 0x43 +#define PIT_CH0 0x40 +#define PIT_CH2 0x42 + +#define PIT_LATCH ((PIT_TICK_RATE + HZ/2) / HZ) + +extern raw_spinlock_t i8253_lock; +extern struct clock_event_device i8253_clockevent; +extern void clockevent_i8253_init(bool oneshot); + +extern void setup_pit_timer(void); + +#endif /* __LINUX_I8253_H */ |