Current File : //usr/share/src/uts/i86pc/sys/machclock.h

/*
 * Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef	_SYS_MACHCLOCK_H
#define	_SYS_MACHCLOCK_H

#ifdef __cplusplus
extern "C" {
#endif

/*
 * tod module name and operations
 */

struct tod_ops;
typedef struct tod_ops tod_ops_t;

/*
 * TOD Ops.
 * The only functions that _must_ be defined are the tod_get() and
 * tod_set() functions.  All others may be unused, and need to be
 * checked for NULL before using.
 */
struct tod_ops {
	timestruc_t	(*tod_get)(tod_ops_t *);
	hrtime_t	(*tod_get_hires)(tod_ops_t *);
	void		(*tod_set)(tod_ops_t *, timestruc_t);
	uint_t		(*tod_set_watchdog_timer)(tod_ops_t *, int);
	uint_t		(*tod_clear_watchdog_timer)(tod_ops_t *);
	void		(*tod_set_wake_alarm)(tod_ops_t *, int);
	void		(*tod_clear_wake_alarm)(tod_ops_t *);
};

extern tod_ops_t	*tod_ops;
extern char		*tod_module_name;

#define	TODOP_GET(top)		((top)->tod_get(top))
#define	TODOP_GET_HIRES(top)	((top)->tod_get_hires(top))
#define	TODOP_SET(top, ts)	((top)->tod_set(top, ts))
#define	TODOP_SETWD(top, nsec)	((top)->tod_set_watchdog_timer(top, nsec))
#define	TODOP_CLRWD(top)	((top)->tod_clear_watchdog_timer(top))
#define	TODOP_SETWAKE(top, nsec) ((top)->tod_set_wake_alarm(top, nsec))
#define	TODOP_CLRWAKE(top)	((top)->tod_clear_wake_alarm(top))

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_MACHCLOCK_H */