linux_old1/include/asm-sh/timer.h

63 lines
1.3 KiB
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);
int (*start)(void);
int (*stop)(void);
#ifndef CONFIG_GENERIC_TIME
unsigned long (*get_offset)(void);
#endif
};
struct sys_timer {
const char *name;
struct sys_device dev;
struct sys_timer_ops *ops;
#ifdef CONFIG_NO_IDLE_HZ
struct dyn_tick_timer *dyn_tick;
#endif
};
#ifdef CONFIG_NO_IDLE_HZ
#define DYN_TICK_ENABLED (1 << 1)
struct dyn_tick_timer {
spinlock_t lock;
unsigned int state; /* Current state */
int (*enable)(void); /* Enables dynamic tick */
int (*disable)(void); /* Disables dynamic tick */
void (*reprogram)(unsigned long); /* Reprograms the timer */
int (*handler)(int, void *);
};
void timer_dyn_reprogram(void);
#else
#define timer_dyn_reprogram() do { } while (0)
#endif
#define TICK_SIZE (tick_nsec / 1000)
extern struct sys_timer tmu_timer, cmt_timer, mtu2_timer;
extern struct sys_timer *sys_timer;
#ifndef CONFIG_GENERIC_TIME
static inline unsigned long get_timer_offset(void)
{
return sys_timer->ops->get_offset();
}
#endif
/* arch/sh/kernel/timers/timer.c */
struct sys_timer *get_sys_timer(void);
/* arch/sh/kernel/time.c */
void handle_timer_tick(void);
#endif /* __ASM_SH_TIMER_H */