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: src/sys/i386/include/clock.h,v 1.38.2.1 2002/11/02 04:41:50 iwasaki Exp $ 7 * $DragonFly: src/sys/platform/pc32/include/clock.h,v 1.9 2008/05/10 17:24:08 dillon Exp $ 8 */ 9 10 #ifndef _MACHINE_CLOCK_H_ 11 #define _MACHINE_CLOCK_H_ 12 13 #ifdef _KERNEL 14 15 #ifndef _SYS_TYPES_H_ 16 #include <sys/types.h> 17 #endif 18 19 /* 20 * i386 to clock driver interface. 21 * XXX large parts of the driver and its interface are misplaced. 22 */ 23 extern int adjkerntz; 24 extern int disable_rtc_set; 25 extern int statclock_disable; 26 extern u_int timer_freq; 27 extern int timer0_max_count; 28 extern int tsc_present; 29 extern int64_t tsc_frequency; 30 extern int tsc_is_broken; 31 extern int wall_cmos_clock; 32 #ifdef APIC_IO 33 extern int apic_8254_intr; 34 #endif 35 36 /* 37 * Driver to clock driver interface. 38 */ 39 40 int rtcin (int val); 41 int acquire_timer2 (int mode); 42 int release_timer2 (void); 43 int sysbeep (int pitch, int period); 44 void timer_restore (void); 45 46 #endif /* _KERNEL */ 47 48 #endif /* !_MACHINE_CLOCK_H_ */ 49