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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 16:51:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 16:51:56 -0700
commita99a7d1436f9375662f35ccac8f1a1e1b0302a11 (patch)
tree0b3f411f6b1c4256063cf1d53773110f5a5f7482 /include
parentbdc7ccfc0631797636837b10df7f87bc1e2e4ae3 (diff)
parentded7c1ee9799fe0ca725b459f151402e3ca4d12b (diff)
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.h29
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 */