1 /* 2 * Kernel interface to machine-dependent clock driver. 3 * Garrett Wollman, September 1994. 4 * This file is in the public domain. 5 * 6 * $FreeBSD$ 7 */ 8 9 #ifndef _MACHINE_CLOCK_H_ 10 #define _MACHINE_CLOCK_H_ 11 12 #ifdef _KERNEL 13 14 extern int disable_rtc_set; 15 extern int wall_cmos_clock; 16 extern int adjkerntz; 17 18 void DELAY __P((int usec)); 19 int sysbeep __P((int pitch, int period)); 20 int acquire_timer2 __P((int mode)); 21 int release_timer2 __P((void)); 22 23 #endif 24 25 #endif /* !_MACHINE_CLOCK_H_ */ 26