release/src-rt-6.x/linux/linux-2.6/include/asm-sh/timer.h

   1 #ifndef __ASM_SH_TIMER_H
   2 #define __ASM_SH_TIMER_H
   3
   4 #include <linux/sysdev.h>
   5 #include <linux/clocksource.h>
   6 #include <asm/cpu/timer.h>
   7
   8 struct sys_timer_ops {
   9         int (*init)(void);
  10         int (*start)(void);
  11         int (*stop)(void);
  12         cycle_t (*read)(void);
  13 #ifndef CONFIG_GENERIC_TIME
  14         unsigned long (*get_offset)(void);
  15 #endif
  16 };
  17
  18 struct sys_timer {
  19         const char              *name;
  20
  21         struct sys_device       dev;
  22         struct sys_timer_ops    *ops;
  23 };
  24
  25 #define TICK_SIZE (tick_nsec / 1000)
  26
  27 extern struct sys_timer tmu_timer, cmt_timer, mtu2_timer;
  28 extern struct sys_timer *sys_timer;
  29
  30 #ifndef CONFIG_GENERIC_TIME
  31 static inline unsigned long get_timer_offset(void)
  32 {
  33         return sys_timer->ops->get_offset();
  34 }
  35 #endif
  36
  37 /* arch/sh/kernel/timers/timer.c */
  38 struct sys_timer *get_sys_timer(void);
  39
  40 /* arch/sh/kernel/time.c */
  41 void handle_timer_tick(void);
  42 extern unsigned long sh_hpt_frequency;
  43 extern struct clocksource clocksource_sh;
  44
  45 #endif /* __ASM_SH_TIMER_H */