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/* $OpenBSD: a34kbbc.c,v 1.2 2000/01/24 16:02:04 espie Exp $ */
/* $NetBSD: a34kbbc.c,v 1.1 1997/07/19 00:01:42 is Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* from: Utah $Hdr: clock.c 1.18 91/01/21$
*
* @(#)clock.c 7.6 (Berkeley) 5/7/91
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <machine/psl.h>
#include <machine/cpu.h>
#include <amiga/amiga/device.h>
#include <amiga/amiga/custom.h>
#include <amiga/amiga/cia.h>
#include <amiga/dev/rtc.h>
#include <amiga/dev/zbusvar.h>
#include <dev/clock_subr.h>
int a34kbbc_match __P((struct device *, void *, void *));
void a34kbbc_attach __P((struct device *, struct device *, void *));
struct cfattach a34kbbc_ca = {
sizeof(struct device), a34kbbc_match, a34kbbc_attach
};
struct cfdriver a34kbbc_cd = {
NULL, "a34kbbc", DV_DULL, NULL, 0
};
void *a34kclockaddr;
time_t a3gettod __P((void));
int a3settod __P((time_t));
int
a34kbbc_match(pdp, match, auxp)
struct device *pdp;
void *match;
void *auxp;
{
struct cfdata *cfp = match;
if (!matchname("a34kbbc", auxp))
return(0);
if (cfp->cf_unit)
return(0); /* only one of us please */
if (!(is_a3000() || is_a4000()))
return(0);
a34kclockaddr = (void *)ztwomap(0xdc0000);
if (a3gettod() == 0)
return(0);
return(1);
}
/*
* Attach us to the rtc function pointers.
*/
void
a34kbbc_attach(pdp, dp, auxp)
struct device *pdp, *dp;
void *auxp;
{
printf("\n");
a34kclockaddr = (void *)ztwomap(0xdc0000);
gettod = a3gettod;
settod = a3settod;
}
time_t
a3gettod()
{
struct rtclock3000 *rt;
struct clock_ymdhms dt;
time_t secs;
rt = a34kclockaddr;
/* hold clock */
rt->control1 = A3CONTROL1_HOLD_CLOCK;
/* Copy the info. Careful about the order! */
dt.dt_sec = rt->second1 * 10 + rt->second2;
dt.dt_min = rt->minute1 * 10 + rt->minute2;
dt.dt_hour = rt->hour1 * 10 + rt->hour2;
dt.dt_wday = rt->weekday;
dt.dt_day = rt->day1 * 10 + rt->day2;
dt.dt_mon = rt->month1 * 10 + rt->month2;
dt.dt_year = rt->year1 * 10 + rt->year2;
dt.dt_year += CLOCK_BASE_YEAR;
/* let it run again.. */
rt->control1 = A3CONTROL1_FREE_CLOCK;
/* year too low: must be >= 2000 */
if (dt.dt_year < STARTOFTIME)
dt.dt_year += 100;
if ((dt.dt_hour > 23) ||
(dt.dt_wday > 6) ||
(dt.dt_day > 31) ||
(dt.dt_mon > 12) ||
(dt.dt_year < STARTOFTIME) || (dt.dt_year > 2036))
return (0);
secs = clock_ymdhms_to_secs(&dt);
return (secs);
}
int
a3settod(secs)
time_t secs;
{
struct rtclock3000 *rt;
struct clock_ymdhms dt;
rt = a34kclockaddr;
/*
* there seem to be problems with the bitfield addressing
* currently used..
*/
if (! rt)
return (0);
clock_secs_to_ymdhms(secs, &dt);
rt->control1 = A3CONTROL1_HOLD_CLOCK;
rt->second1 = dt.dt_sec / 10;
rt->second2 = dt.dt_sec % 10;
rt->minute1 = dt.dt_min / 10;
rt->minute2 = dt.dt_min % 10;
rt->hour1 = dt.dt_hour / 10;
rt->hour2 = dt.dt_hour % 10;
rt->weekday = dt.dt_wday;
rt->day1 = dt.dt_day / 10;
rt->day2 = dt.dt_day % 10;
rt->month1 = dt.dt_mon / 10;
rt->month2 = dt.dt_mon % 10;
/* Store two digit year */
rt->year1 = (dt.dt_year / 10) % 10;
rt->year2 = dt.dt_year % 10;
rt->control1 = A3CONTROL1_FREE_CLOCK;
rt->control1 = A3CONTROL1_HOLD_CLOCK | 1; /* mode 1 registers */
rt->leapyear = dt.dt_year; /* XXX implicit % 4 */
rt->control1 = A3CONTROL1_FREE_CLOCK; /* implied mode 1 */
return (1);
}
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