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[src/trunk]: src/sys/arch/pica/pica Moved to /cvsroot/syssrc/sys/arch/arc/arc...



details:   https://anonhg.NetBSD.org/src/rev/e7fbbde290dd
branches:  trunk
changeset: 481094:e7fbbde290dd
user:      soda <soda%NetBSD.org@localhost>
date:      Sun Jan 23 20:09:03 2000 +0000

description:
Moved to /cvsroot/syssrc/sys/arch/arc/arc/clock.c,v

diffstat:

 sys/arch/pica/pica/clock.c |  314 ---------------------------------------------
 1 files changed, 0 insertions(+), 314 deletions(-)

diffs (truncated from 318 to 300 lines):

diff -r f0fbb43dcdcd -r e7fbbde290dd sys/arch/pica/pica/clock.c
--- a/sys/arch/pica/pica/clock.c        Sun Jan 23 20:09:02 2000 +0000
+++ /dev/null   Thu Jan 01 00:00:00 1970 +0000
@@ -1,314 +0,0 @@
-/*     $NetBSD: clock.c,v 1.7 1998/01/12 20:04:30 thorpej Exp $        */
-
-/*
- * Copyright (c) 1988 University of Utah.
- * Copyright (c) 1992, 1993
- *     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 and Ralph Campbell.
- *
- * 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
- *
- *     from: @(#)clock.c       8.1 (Berkeley) 6/10/93
- */
-
-#include <sys/param.h>
-#include <sys/kernel.h>
-#include <sys/systm.h>
-#include <sys/device.h>
-
-#include <machine/autoconf.h>
-#include <machine/machConst.h>
-#include <pica/pica/clockvar.h>
-#include <pica/pica/picatype.h>
-
-
-extern int cputype;    /* What kind of cpu we are running on */
-
-/* Definition of the driver for autoconfig. */
-static int     clockmatch __P((struct device *, void *, void *));
-static void    clockattach __P((struct device *, struct device *, void *));
-
-struct cfattach clock_ca = {
-       sizeof(struct clock_softc), clockmatch, clockattach
-};
-
-extern struct cfdriver clock_cd;
-
-void   mcclock_attach __P((struct device *, struct device *, void *));
-
-#define        SECMIN  ((unsigned)60)                  /* seconds per minute */
-#define        SECHOUR ((unsigned)(60*SECMIN))         /* seconds per hour */
-#define        SECDAY  ((unsigned)(24*SECHOUR))        /* seconds per day */
-#define        SECYR   ((unsigned)(365*SECDAY))        /* seconds per common year */
-
-#define        LEAPYEAR(year)  (((year) % 4) == 0)
-
-static int
-clockmatch(parent, cfdata, aux)
-       struct device *parent;
-       void *cfdata;
-       void *aux;
-{
-       struct cfdata *cf = cfdata;
-       struct confargs *ca = aux;
-
-       /* See how many clocks this system has */       
-       switch (cputype) {
-
-       case MIPS_PICA_61:
-               /* make sure that we're looking for this type of device. */
-               if (!BUS_MATCHNAME(ca, "dallas_rtc"))
-                       return (0);
-
-               if (cf->cf_unit >= 1)
-                       return (0);
-
-               break;
-
-       default:
-               panic("unknown CPU");
-       }
-
-       return (1);
-}
-
-static void
-clockattach(parent, self, aux)
-       struct device *parent;
-       struct device *self;
-       void *aux;
-{
-
-       switch (cputype) {
-
-       case MIPS_PICA_61:
-               mcclock_attach(parent, self, aux);
-               break;
-
-       default:
-               panic("clockattach: it didn't get here.  really.");
-       }
-
-
-       /*
-        * establish the clock interrupt; it's a special case
-        */
-       BUS_INTR_ESTABLISH((struct confargs *)aux,
-                          (intr_handler_t) hardclock, self);
-
-       printf("\n");
-}
-
-/*
- * Wait "n" microseconds.  This doesn't belong here.  XXX.
- */
-void
-delay(n)
-       int n;
-{
-       DELAY(n);
-}
-
-/*
- * Machine-dependent clock routines.
- *
- * Startrtclock restarts the real-time clock, which provides
- * hardclock interrupts to kern_clock.c.
- *
- * Inittodr initializes the time of day hardware which provides
- * date functions.  Its primary function is to use some file
- * system information in case the hardare clock lost state.
- *
- * Resettodr restores the time of day hardware after a time change.
- */
-
-
-/*
- * Start the real-time and statistics clocks. Leave stathz 0 since there
- * are no other timers available.
- */
-void
-cpu_initclocks()
-{
-       extern int tickadj;
-       struct clock_softc *csc = (struct clock_softc *)clock_cd.cd_devs[0];
-
-       hz = 100;               /* 100 Hz */
-       tick = 1000000 / hz;    /* number of micro-seconds between interrupts */
-
-       /*
-        * Start the clock.
-        */
-       (*csc->sc_init)(csc);
-}
-
-/*
- * We assume newhz is either stathz or profhz, and that neither will
- * change after being set up above.  Could recalculate intervals here
- * but that would be a drag.
- */
-void
-setstatclockrate(newhz)
-       int newhz;
-{
-}
-
-/*
- * This code is defunct after 2099.
- * Will Unix still be here then??
- */
-static short dayyr[12] = {
-       0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
-};
-
-/*
- * Initialze the time of day register, based on the time base which is, e.g.
- * from a filesystem.  Base provides the time to within six months,
- * and the time of year clock (if any) provides the rest.
- */
-void
-inittodr(base)
-       time_t base;
-{
-       struct tod_time c;
-       struct clock_softc *csc = (struct clock_softc *)clock_cd.cd_devs[0];
-       register int days, yr;
-       long deltat;
-       int badbase, s;
-
-       if (base < 5*SECYR) {
-               printf("WARNING: preposterous time in file system");
-               /* read the system clock anyway */
-               base = 6*SECYR + 186*SECDAY + SECDAY/2;
-               badbase = 1;
-       } else
-               badbase = 0;
-
-       /* Read RTC chip registers */ 
-       (*csc->sc_get)(csc, base, &c);
-
-       csc->sc_initted = 1;
-
-       /* simple sanity checks */
-       c.year = c.year+80; /* must be multiple of 4 because chip knows leap */
-       if (c.year < 70 || c.mon < 1 || c.mon > 12 || c.day < 1 ||
-           c.day > 31 || c.hour > 23 || c.min > 59 || c.sec > 59) {
-               /*
-                * Believe the time in the file system for lack of
-                * anything better, resetting the TODR.
-                */
-               time.tv_sec = base;
-               if (!badbase) {
-                       printf("WARNING: preposterous clock chip time\n");
-                       resettodr();
-               }
-               goto bad;
-       }
-       days = 0;
-       for (yr = 70; yr < c.year; yr++)
-               days += LEAPYEAR(yr) ? 366 : 365;
-       days += dayyr[c.mon - 1] + c.day - 1;
-       if (LEAPYEAR(yr) && c.mon > 2)
-               days++;
-       /* now have days since Jan 1, 1970; the rest is easy... */
-       time.tv_sec = days * SECDAY + c.hour * 3600 + c.min * 60 + c.sec;
-
-       if (!badbase) {
-               /*
-                * See if we gained/lost two or more days;
-                * if so, assume something is amiss.
-                */
-               deltat = time.tv_sec - base;
-               if (deltat < 0)
-                       deltat = -deltat;
-               if (deltat < 2 * SECDAY)
-                       return;
-               printf("WARNING: clock %s %d days",
-                   time.tv_sec < base ? "lost" : "gained", deltat / SECDAY);
-       }
-bad:
-       printf(" -- CHECK AND RESET THE DATE!\n");
-}
-
-/*
- * Reset the TODR based on the time value; used when the TODR
- * has a preposterous value and also when the time is reset
- * by the stime system call.  Also called when the TODR goes past
- * TODRZERO + 100*(SECYEAR+2*SECDAY) (e.g. on Jan 2 just after midnight)
- * to wrap the TODR around.
- */
-void
-resettodr()
-{
-       struct tod_time c;
-       struct clock_softc *csc = (struct clock_softc *)clock_cd.cd_devs[0];
-       register int t, t2;
-       int s;
-
-       if(!csc->sc_initted)
-               return;
-
-       /* compute the day of week. 1 is Sunday*/
-       t2 = time.tv_sec / SECDAY;
-       c.dow = (t2 + 5) % 7;   /* 1/1/1970 was thursday */
-
-       /* compute the year */
-       t2 = time.tv_sec / SECDAY;
-       c.year = 69;
-       while (t2 >= 0) {       /* whittle off years */
-               t = t2;
-               c.year++;
-               t2 -= LEAPYEAR(c.year) ? 366 : 365;
-       }
-
-       /* t = month + day; separate */
-       t2 = LEAPYEAR(c.year);



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