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 struct trapframe; 15 16 int sysbeep(int pitch, int period); 17 int acquire_timer2(int mode); 18 int release_timer2(void); 19 20 void decr_intr(struct trapframe *); 21 22 #endif 23 24 #endif /* !_MACHINE_CLOCK_H_ */ 25