113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/* $NetBSD: mcclock_pad32.c,v 1.2 1996/04/17 22:22:58 cgd Exp $ */
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/*
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* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <alpha/alpha/clockvar.h>
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#include <alpha/alpha/mcclockvar.h>
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#include <dev/ic/mc146818reg.h>
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#include <dev/tc/tcreg.h>
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#include <dev/tc/tcvar.h>
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#include <dev/tc/ioasicvar.h> /* XXX */
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struct mcclock_ioasic_clockdatum {
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u_char datum;
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char pad[3];
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};
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struct mcclock_ioasic_softc {
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struct mcclock_softc sc_mcclock;
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struct mcclock_ioasic_clockdatum *sc_dp;
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};
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int mcclock_ioasic_match __P((struct device *, void *, void *));
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void mcclock_ioasic_attach __P((struct device *, struct device *, void *));
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struct cfattach mcclock_ioasic_ca = {
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sizeof (struct mcclock_ioasic_softc), mcclock_ioasic_match,
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mcclock_ioasic_attach,
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};
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void mcclock_ioasic_write __P((struct mcclock_softc *, u_int, u_int));
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u_int mcclock_ioasic_read __P((struct mcclock_softc *, u_int));
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const struct mcclock_busfns mcclock_ioasic_busfns = {
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mcclock_ioasic_write, mcclock_ioasic_read,
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};
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int
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mcclock_ioasic_match(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct ioasicdev_attach_args *d = aux;
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if (strncmp("TOY_RTC ", d->iada_modname, TC_ROM_LLEN))
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return (0);
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return (1);
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}
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void
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mcclock_ioasic_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct ioasicdev_attach_args *ioasicdev = aux;
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struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)self;
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sc->sc_dp = (struct mcclock_ioasic_clockdatum *)ioasicdev->iada_addr;
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mcclock_attach(&sc->sc_mcclock, &mcclock_ioasic_busfns);
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}
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void
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mcclock_ioasic_write(dev, reg, datum)
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struct mcclock_softc *dev;
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u_int reg, datum;
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{
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struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)dev;
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sc->sc_dp[reg].datum = datum;
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}
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u_int
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mcclock_ioasic_read(dev, reg)
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struct mcclock_softc *dev;
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u_int reg;
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{
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struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)dev;
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return (sc->sc_dp[reg].datum);
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}
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