clock.h revision 110370 
1/*
2 * Kernel interface to machine-dependent clock driver.
3 * Garrett Wollman, September 1994.
4 * This file is in the public domain.
5 *
6 * $FreeBSD: head/sys/amd64/include/clock.h 110370 2003-02-05 09:20:40Z phk $
7 */
8
9#ifndef _MACHINE_CLOCK_H_
10#define	_MACHINE_CLOCK_H_
11
12#ifdef _KERNEL
13/*
14 * i386 to clock driver interface.
15 * XXX large parts of the driver and its interface are misplaced.
16 */
17extern int	adjkerntz;
18extern int	disable_rtc_set;
19extern int	pscnt;
20extern int	psdiv;
21extern int	statclock_disable;
22extern u_int	timer_freq;
23extern int	timer0_max_count;
24extern uint64_t	tsc_freq;
25extern int	tsc_is_broken;
26extern int	wall_cmos_clock;
27#ifdef APIC_IO
28extern int	apic_8254_intr;
29#endif
30
31/*
32 * Driver to clock driver interface.
33 */
34struct clockframe;
35
36int	acquire_timer0(int rate, void (*function)(struct clockframe *frame));
37int	acquire_timer2(int mode);
38int	release_timer0(void);
39int	release_timer2(void);
40#ifndef PC98
41int	rtcin(int val);
42#else
43int	acquire_timer1(int mode);
44int	release_timer1(void);
45#endif
46int	sysbeep(int pitch, int period);
47void	timer_restore(void);
48void	init_TSC(void);
49
50#endif /* _KERNEL */
51
52#endif /* !_MACHINE_CLOCK_H_ */
53