44 lines
864 B
C
44 lines
864 B
C
/*-
|
|
* Kernel interface to machine-dependent clock driver.
|
|
* Garrett Wollman, September 1994.
|
|
* This file is in the public domain.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_CLOCK_H_
|
|
#define _MACHINE_CLOCK_H_
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* i386 to clock driver interface.
|
|
* XXX large parts of the driver and its interface are misplaced.
|
|
*/
|
|
extern int clkintr_pending;
|
|
extern int statclock_disable;
|
|
extern u_int i8254_freq;
|
|
extern int i8254_max_count;
|
|
extern uint64_t tsc_freq;
|
|
extern int tsc_is_broken;
|
|
extern int tsc_is_invariant;
|
|
|
|
void i8254_init(void);
|
|
|
|
/*
|
|
* Driver to clock driver interface.
|
|
*/
|
|
|
|
void startrtclock(void);
|
|
void timer_restore(void);
|
|
void init_TSC(void);
|
|
void init_TSC_tc(void);
|
|
|
|
#define HAS_TIMER_SPKR 1
|
|
int timer_spkr_acquire(void);
|
|
int timer_spkr_release(void);
|
|
void timer_spkr_setfreq(int freq);
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_MACHINE_CLOCK_H_ */
|