linux_old1/include/asm-i386/i8253.h

18 lines
328 B
C

#ifndef __ASM_I8253_H__
#define __ASM_I8253_H__
#include <linux/clockchips.h>
/* i8253A PIT registers */
#define PIT_MODE 0x43
#define PIT_CH0 0x40
#define PIT_CH2 0x42
extern spinlock_t i8253_lock;
extern struct clock_event_device *global_clock_event;
extern void setup_pit_timer(void);
#endif /* __ASM_I8253_H__ */