mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 14:34:28 +08:00
aa01666df3
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>
43 lines
805 B
C
43 lines
805 B
C
#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 */
|
|
|