diff options
Diffstat (limited to 'sys/arch/amiga/dev/a34kbbc.c')
| -rw-r--r-- | sys/arch/amiga/dev/a34kbbc.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/sys/arch/amiga/dev/a34kbbc.c b/sys/arch/amiga/dev/a34kbbc.c new file mode 100644 index 00000000000..3f4cc8af7db --- /dev/null +++ b/sys/arch/amiga/dev/a34kbbc.c @@ -0,0 +1,188 @@ +/* $OpenBSD: a34kbbc.c,v 1.1 1997/09/18 13:39:42 niklas 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; + + 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); + dt.dt_year -= CLOCK_BASE_YEAR; + + 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; + rt->year1 = dt.dt_year / 10; + rt->year2 = dt.dt_year % 10; + rt->control1 = A3CONTROL1_FREE_CLOCK; + + return (1); +} |