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/* $OpenBSD: clock.c,v 1.4 1999/06/24 00:10:56 mickey Exp $ */
/*
* Copyright (c) 1998,1999 Michael Shalayeff
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/time.h>
#include <dev/clock_subr.h>
#include <machine/pdc.h>
#include <machine/iomod.h>
#include <machine/psl.h>
#include <machine/intr.h>
#include <machine/reg.h>
#include <machine/cpufunc.h>
#include <machine/autoconf.h>
struct timeval time;
void startrtclock __P((void));
void
cpu_initclocks()
{
extern u_int cpu_hzticks;
u_int time_inval;
#ifdef USELEDS
static u_int hbcnt = 0;
if (!(hbcnt % 50)) {
register u_int r = (hbcnt / 50) % 6;
heartbeat(r < 4 && !(r % 2));
}
#endif
/* Start the interval timer. */
mfctl(CR_ITMR, time_inval);
mtctl(time_inval + cpu_hzticks, CR_ITMR);
}
/*
* initialize the system time from the time of day clock
*/
void
inittodr(t)
time_t t;
{
static struct pdc_tod tod;
pdc_call((iodcio_t)PAGE0->mem_pdc, 1, PDC_TOD, PDC_TOD_READ,
&tod, 0, 0, 0, 0, 0);
time.tv_sec = tod.sec;
time.tv_usec = tod.usec;
if ((long)time.tv_sec < 0) {
time.tv_sec = SECYR * (1990 - 1970);
printf("WARNING: clock not initialized -- check and reset\n");
}
}
/*
* reset the time of day clock to the value in time
*/
void
resettodr()
{
static struct pdc_tod tod;
tod.sec = time.tv_sec;
tod.usec = time.tv_usec;
pdc_call((iodcio_t)PAGE0->mem_pdc, 1, PDC_TOD, PDC_TOD_WRITE, &tod);
}
void
setstatclockrate(newhz)
int newhz;
{
/* nothing we can do */
}
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