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authorPaul Mundt <lethal@linux-sh.org>2006-01-16 22:14:18 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-16 23:15:28 -0800
commitaa01666df35cd769c0957d4b3ae6ee99d680ab88 (patch)
tree7dd68a8522cc6f9e8eb49fb9af630fca8b3e464d /include/asm-sh
parent36ddf31b689a8c11d424e43565d2aa440b77bbf4 (diff)
[PATCH] sh: Simple timer framework
This builds on some of the clock framework code to support a simple system timer interface. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-sh')
-rw-r--r--include/asm-sh/timer.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/include/asm-sh/timer.h b/include/asm-sh/timer.h
new file mode 100644
index 000000000000..dd6579c0b04c
--- /dev/null
+++ b/include/asm-sh/timer.h
@@ -0,0 +1,42 @@
+#ifndef __ASM_SH_TIMER_H
+#define __ASM_SH_TIMER_H
+
+#include <linux/sysdev.h>
+#include <asm/cpu/timer.h>
+
+struct sys_timer_ops {
+ int (*init)(void);
+ unsigned long (*get_offset)(void);
+ unsigned long (*get_frequency)(void);
+};
+
+struct sys_timer {
+ const char *name;
+
+ struct sys_device dev;
+ struct sys_timer_ops *ops;
+};
+
+#define TICK_SIZE (tick_nsec / 1000)
+
+extern struct sys_timer tmu_timer;
+extern struct sys_timer *sys_timer;
+
+static inline unsigned long get_timer_offset(void)
+{
+ return sys_timer->ops->get_offset();
+}
+
+static inline unsigned long get_timer_frequency(void)
+{
+ return sys_timer->ops->get_frequency();
+}
+
+/* arch/sh/kernel/timers/timer.c */
+struct sys_timer *get_sys_timer(void);
+
+/* arch/sh/kernel/time.c */
+void handle_timer_tick(struct pt_regs *);
+
+#endif /* __ASM_SH_TIMER_H */
+