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50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
/*
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* Kernel interface to machine-dependent clock driver.
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* Garrett Wollman, September 1994.
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* This file is in the public domain.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_CLOCK_H_
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#define _MACHINE_CLOCK_H_
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#ifdef _KERNEL
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/*
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* i386 to clock driver interface.
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* XXX large parts of the driver and its interface are misplaced.
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*/
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extern int adjkerntz;
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extern int disable_rtc_set;
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extern int statclock_disable;
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extern u_int timer_freq;
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extern int timer0_max_count;
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extern u_int tsc_freq;
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extern int tsc_is_broken;
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extern int wall_cmos_clock;
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#ifdef APIC_IO
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extern int apic_8254_intr;
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#endif
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/*
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* Driver to clock driver interface.
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*/
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struct clockframe;
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int acquire_timer0(int rate, void (*function)(struct clockframe *frame));
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int acquire_timer2(int mode);
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int release_timer0(void);
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int release_timer2(void);
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#ifndef PC98
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int rtcin(int val);
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#else
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int acquire_timer1(int mode);
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int release_timer1(void);
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#endif
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int sysbeep(int pitch, int period);
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void timer_restore(void);
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#endif /* _KERNEL */
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#endif /* !_MACHINE_CLOCK_H_ */
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