224 lines
7.1 KiB
C
224 lines
7.1 KiB
C
/* $NetBSD: a34kbbc.c,v 1.16 2005/12/30 16:12:11 is Exp $ */
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/*
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* Copyright (c) 1982, 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: clock.c 1.18 91/01/21$
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*
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* @(#)clock.c 7.6 (Berkeley) 5/7/91
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*/
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/*
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* Copyright (c) 1988 University of Utah.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: clock.c 1.18 91/01/21$
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*
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* @(#)clock.c 7.6 (Berkeley) 5/7/91
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: a34kbbc.c,v 1.16 2005/12/30 16:12:11 is Exp $");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <machine/psl.h>
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#include <machine/cpu.h>
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#include <amiga/amiga/device.h>
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#include <amiga/amiga/custom.h>
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#include <amiga/amiga/cia.h>
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#include <amiga/dev/rtc.h>
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#include <amiga/dev/zbusvar.h>
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#include <dev/clock_subr.h>
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int a34kbbc_match(struct device *, struct cfdata *, void *);
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void a34kbbc_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(a34kbbc, sizeof(struct device),
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a34kbbc_match, a34kbbc_attach, NULL, NULL);
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void *a34kclockaddr;
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int a34kugettod(struct timeval *);
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int a34kusettod(struct timeval *);
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int
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a34kbbc_match(struct device *pdp, struct cfdata *cfp, void *auxp)
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{
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static int a34kbbc_matched = 0;
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if (!matchname("a34kbbc", auxp))
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return(0);
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/* Allow only one instance. */
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if (a34kbbc_matched)
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return(0);
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if (!(is_a3000() || is_a4000()))
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return(0);
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a34kclockaddr = (void *)__UNVOLATILE(ztwomap(0xdc0000));
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if (a34kugettod(0) == 0)
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return(0);
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a34kbbc_matched = 1;
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return(1);
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}
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/*
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* Attach us to the rtc function pointers.
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*/
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void
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a34kbbc_attach(struct device *pdp, struct device *dp, void *auxp)
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{
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printf("\n");
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a34kclockaddr = (void *)__UNVOLATILE(ztwomap(0xdc0000));
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ugettod = a34kugettod;
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usettod = a34kusettod;
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}
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int
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a34kugettod(struct timeval *tvp)
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{
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struct rtclock3000 *rt;
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struct clock_ymdhms dt;
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time_t secs;
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rt = a34kclockaddr;
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/* hold clock */
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rt->control1 = A3CONTROL1_HOLD_CLOCK;
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/* Copy the info. Careful about the order! */
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dt.dt_sec = rt->second1 * 10 + rt->second2;
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dt.dt_min = rt->minute1 * 10 + rt->minute2;
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dt.dt_hour = rt->hour1 * 10 + rt->hour2;
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dt.dt_wday = rt->weekday;
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dt.dt_day = rt->day1 * 10 + rt->day2;
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dt.dt_mon = rt->month1 * 10 + rt->month2;
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dt.dt_year = rt->year1 * 10 + rt->year2;
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dt.dt_year += CLOCK_BASE_YEAR;
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/* let it run again.. */
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rt->control1 = A3CONTROL1_FREE_CLOCK;
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if (dt.dt_year < STARTOFTIME)
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dt.dt_year += 100;
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if ((dt.dt_hour > 23) ||
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(dt.dt_wday > 6) ||
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(dt.dt_day > 31) ||
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(dt.dt_mon > 12) ||
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/* (dt.dt_year < STARTOFTIME) || */ (dt.dt_year > 2036))
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return (0);
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secs = clock_ymdhms_to_secs(&dt);
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if (tvp)
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tvp->tv_sec = secs;
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return (1);
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}
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int
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a34kusettod(struct timeval *tvp)
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{
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struct rtclock3000 *rt;
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struct clock_ymdhms dt;
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time_t secs;
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rt = a34kclockaddr;
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secs = tvp->tv_sec;
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/*
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* there seem to be problems with the bitfield addressing
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* currently used..
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*/
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if (! rt)
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return (0);
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clock_secs_to_ymdhms(secs, &dt);
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rt->control1 = A3CONTROL1_HOLD_CLOCK; /* implies mode 0 */
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rt->second1 = dt.dt_sec / 10;
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rt->second2 = dt.dt_sec % 10;
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rt->minute1 = dt.dt_min / 10;
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rt->minute2 = dt.dt_min % 10;
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rt->hour1 = dt.dt_hour / 10;
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rt->hour2 = dt.dt_hour % 10;
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rt->weekday = dt.dt_wday;
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rt->day1 = dt.dt_day / 10;
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rt->day2 = dt.dt_day % 10;
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rt->month1 = dt.dt_mon / 10;
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rt->month2 = dt.dt_mon % 10;
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rt->year1 = (dt.dt_year / 10) % 10;
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rt->year2 = dt.dt_year % 10;
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rt->control1 = A3CONTROL1_HOLD_CLOCK | 1; /* mode 1 registers */
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rt->leapyear = dt.dt_year; /* XXX implicit % 4 */
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rt->control1 = A3CONTROL1_FREE_CLOCK; /* implies mode 1 */
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return (1);
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}
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