NetBSD/sys/arch/pmax/ibus/mcclock_ibus.c

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2000-01-14 18:52:00 +03:00
/* $NetBSD: mcclock_ibus.c,v 1.7 2000/01/14 15:52:00 ad 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 */
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__KERNEL_RCSID(0, "$NetBSD: mcclock_ibus.c,v 1.7 2000/01/14 15:52:00 ad Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <dev/dec/mcclockvar.h>
#include <dev/dec/mcclock_pad32.h>
#include <pmax/ibus/ibusvar.h>
static int mcclock_ibus_match __P((struct device *, struct cfdata *,
void *));
static void mcclock_ibus_attach __P((struct device *, struct device *,
void *));
struct cfattach mcclock_ibus_ca = {
sizeof (struct mcclock_pad32_softc),
(void *)mcclock_ibus_match, mcclock_ibus_attach,
};
extern struct cfdriver ibus_cd;
static int
mcclock_ibus_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct ibus_attach_args *ia = aux;
if (parent->dv_cfdata->cf_driver != &ibus_cd)
return (0);
if (strcmp("mc146818", ia->ia_name) != 0)
return (0);
if (badaddr((void *)ia->ia_addr, sizeof(u_int32_t)))
return (0);
return (1);
}
static void
mcclock_ibus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct ibus_attach_args *ia =aux;
struct mcclock_pad32_softc *sc = (struct mcclock_pad32_softc *)self;
sc->sc_dp = (struct mcclock_pad32_clockdatum*)ia->ia_addr;
/* Attach MI driver, using busfns with TC-style register padding */
mcclock_attach(&sc->sc_mcclock, &mcclock_pad32_busfns);
}