#ifndef _ASM_X86_I8253_H | |
#define _ASM_X86_I8253_H | |
/* i8253A PIT registers */ | |
#define PIT_MODE 0x43 | |
#define PIT_CH0 0x40 | |
#define PIT_CH2 0x42 | |
#define PIT_LATCH LATCH | |
extern raw_spinlock_t i8253_lock; | |
extern struct clock_event_device *global_clock_event; | |
extern void setup_pit_timer(void); | |
#define inb_pit inb_p | |
#define outb_pit outb_p | |
#endif /* _ASM_X86_I8253_H */ |