include/asm-i386/i8253.h

   1 #ifndef __ASM_I8253_H__
   2 #define __ASM_I8253_H__
   3
   4 #include <linux/clockchips.h>
   5
   6 /* i8253A PIT registers */
   7 #define PIT_MODE                0x43
   8 #define PIT_CH0                 0x40
   9 #define PIT_CH2                 0x42
  10
  11 extern spinlock_t i8253_lock;
  12
  13 extern struct clock_event_device *global_clock_event;
  14
  15 extern void setup_pit_timer(void);
  16
  17 #endif  /* __ASM_I8253_H__ */