118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/* $NetBSD: mcclock_ioasic.c,v 1.8 1997/09/02 13:20:14 thorpej Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Chris G. Demetriou
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
|
|
|
|
__KERNEL_RCSID(0, "$NetBSD: mcclock_ioasic.c,v 1.8 1997/09/02 13:20:14 thorpej Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <dev/dec/clockvar.h>
|
|
#include <dev/dec/mcclockvar.h>
|
|
#include <dev/ic/mc146818reg.h>
|
|
#include <dev/tc/tcreg.h>
|
|
#include <dev/tc/tcvar.h>
|
|
#include <dev/tc/ioasicvar.h> /* XXX */
|
|
|
|
struct mcclock_ioasic_clockdatum {
|
|
u_char datum;
|
|
char pad[3];
|
|
};
|
|
|
|
struct mcclock_ioasic_softc {
|
|
struct mcclock_softc sc_mcclock;
|
|
|
|
struct mcclock_ioasic_clockdatum *sc_dp;
|
|
};
|
|
|
|
int mcclock_ioasic_match __P((struct device *, struct cfdata *, void *));
|
|
void mcclock_ioasic_attach __P((struct device *, struct device *, void *));
|
|
|
|
struct cfattach mcclock_ioasic_ca = {
|
|
sizeof (struct mcclock_ioasic_softc), mcclock_ioasic_match,
|
|
mcclock_ioasic_attach,
|
|
};
|
|
|
|
void mcclock_ioasic_write __P((struct mcclock_softc *, u_int, u_int));
|
|
u_int mcclock_ioasic_read __P((struct mcclock_softc *, u_int));
|
|
|
|
const struct mcclock_busfns mcclock_ioasic_busfns = {
|
|
mcclock_ioasic_write, mcclock_ioasic_read,
|
|
};
|
|
|
|
int
|
|
mcclock_ioasic_match(parent, match, aux)
|
|
struct device *parent;
|
|
struct cfdata *match;
|
|
void *aux;
|
|
{
|
|
struct ioasicdev_attach_args *d = aux;
|
|
|
|
if (strncmp("TOY_RTC ", d->iada_modname, TC_ROM_LLEN))
|
|
return (0);
|
|
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
mcclock_ioasic_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct ioasicdev_attach_args *ioasicdev = aux;
|
|
struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)self;
|
|
|
|
sc->sc_dp = (struct mcclock_ioasic_clockdatum *)ioasicdev->iada_addr;
|
|
|
|
mcclock_attach(&sc->sc_mcclock, &mcclock_ioasic_busfns);
|
|
}
|
|
|
|
void
|
|
mcclock_ioasic_write(dev, reg, datum)
|
|
struct mcclock_softc *dev;
|
|
u_int reg, datum;
|
|
{
|
|
struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)dev;
|
|
|
|
sc->sc_dp[reg].datum = datum;
|
|
}
|
|
|
|
u_int
|
|
mcclock_ioasic_read(dev, reg)
|
|
struct mcclock_softc *dev;
|
|
u_int reg;
|
|
{
|
|
struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)dev;
|
|
|
|
return (sc->sc_dp[reg].datum);
|
|
}
|