https://github.com/torvalds/linux
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Tip revision: 101142c37be8e5af9b847860219217e6b958c739 authored by Linus Torvalds on 15 February 2008, 20:57:20 UTC
Linux 2.6.25-rc2
Tip revision: 101142c
i8253.h
#ifndef __ASM_I8253_H__
#define __ASM_I8253_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);

#define inb_pit		inb_p
#define outb_pit	outb_p

#endif	/* __ASM_I8253_H__ */
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