clock.h revision 120596 
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 120596 2003-09-30 06:38:11Z peter $
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
28/*
29 * Driver to clock driver interface.
30 */
31struct clockframe;
32
33#ifndef BURN_BRIDGES
34int	acquire_timer0(int rate, void (*function)(struct clockframe *frame));
35int	release_timer0(void);
36#endif
37int	acquire_timer2(int mode);
38int	release_timer2(void);
39int	rtcin(int val);
40int	sysbeep(int pitch, int period);
41void	init_TSC(void);
42void	init_TSC_tc(void);
43
44#endif /* _KERNEL */
45
46#endif /* !_MACHINE_CLOCK_H_ */
47