sys/platform/vkernel64/include/clock.h

   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  */
   8
   9 #ifndef _MACHINE_CLOCK_H_
  10 #define _MACHINE_CLOCK_H_
  11
  12 #ifdef _KERNEL
  13
  14 #ifndef _SYS_TYPES_H_
  15 #include <sys/types.h>
  16 #endif
  17
  18 typedef uint64_t tsc_uclock_t;
  19 typedef int64_t tsc_sclock_t;
  20
  21 /*
  22  * i386 to clock driver interface.
  23  * XXX large parts of the driver and its interface are misplaced.
  24  */
  25 extern int      adjkerntz;
  26 extern int      disable_rtc_set;
  27 extern u_int    timer_freq;
  28 extern int      timer0_max_count;
  29 extern int      tsc_present;
  30 extern int      tsc_invariant;
  31 extern int      tsc_mpsync;
  32 extern int      tsc_is_broken;
  33 extern int      wall_cmos_clock;
  34 extern tsc_uclock_t tsc_frequency;
  35 extern tsc_uclock_t tsc_oneus_approx;   /* do not use for fine calc, min 1 */
  36
  37 /*
  38  * Driver to clock driver interface.
  39  */
  40
  41 int     rtcin (int val);
  42 int     acquire_timer2 (int mode);
  43 int     release_timer2 (void);
  44 int     sysbeep (int pitch, int period);
  45 void    timer_restore (void);
  46
  47 #endif /* _KERNEL */
  48
  49 #endif /* !_MACHINE_CLOCK_H_ */