/*      $NetBSD: clock.h,v 1.10 2017/05/22 17:12:11 ragge Exp $ */
/*
* Copyright (c) 1996 Ludd, University of Lule}, Sweden.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _VAX_CLOCK_H_
#define _VAX_CLOCK_H_

#include <dev/clock_subr.h>

/*
* Time constants. These are unlikely to change.
*/
#define TODRBASE        (1 << 28) /* Rumours says it comes from VMS */

#define SEC_OFF         0
#define MIN_OFF         2
#define HR_OFF          4
#define WDAY_OFF        6
#define DAY_OFF         7
#define MON_OFF         8
#define YR_OFF          9
#define CSRA_OFF        10
#define CSRB_OFF        11
#define CSRD_OFF        13

#define CSRA_UIP        0200
#define CSRB_SET        0200
#define CSRB_24         0002
#define CSRB_DM         0004
#define CSRD_VRT        0200

/* Var's used when dealing with clock chip */
extern  volatile short *clk_page;
extern  int clk_adrshift, clk_tweak;

/* Prototypes */
int generic_gettime(struct timeval *);
void generic_settime(struct timeval *);
int chip_gettime(struct timeval *);
void chip_settime(struct timeval *);
int yeartonum(int);
int numtoyear(int);

#endif /* _VAX_CLOCK_H_ */