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/* $OpenBSD: mainbus.c,v 1.2 2001/11/06 22:45:54 miod Exp $ */
/*
* Copyright (c) 1994, 1995 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/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <machine/autoconf.h>
struct mainbus_softc {
struct device sc_dv;
struct bushook sc_bus;
};
/* Definition of the mainbus driver. */
static int mbmatch __P((struct device *, void *, void *));
static void mbattach __P((struct device *, struct device *, void *));
static int mbprint __P((void *, const char *));
struct cfattach mainbus_ca = {
sizeof(struct device), mbmatch, mbattach
};
struct cfdriver mainbus_cd = {
NULL, "mainbus", DV_DULL, NULL, 0
};
void mb_intr_establish __P((struct confargs *, int (*)(void *), void *));
void mb_intr_disestablish __P((struct confargs *));
caddr_t mb_cvtaddr __P((struct confargs *));
int mb_matchname __P((struct confargs *, char *));
static int attached = 0;
static int
mbmatch(parent, cfdata, aux)
struct device *parent;
void *cfdata;
void *aux;
{
/*
* That one mainbus is always here.
*/
if (!attached) {
return(1);
} else {
return(0);
}
}
static void
mbattach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct mainbus_softc *sc = (struct mainbus_softc *)self;
struct confargs nca;
printf("\n");
attached = 1;
sc->sc_bus.bh_dv = (struct device *)sc;
sc->sc_bus.bh_type = BUS_MAIN;
sc->sc_bus.bh_intr_establish = mb_intr_establish;
sc->sc_bus.bh_intr_disestablish = mb_intr_disestablish;
sc->sc_bus.bh_matchname = mb_matchname;
/*
* Try to find and attach all of the CPUs in the machine.
* ( Right now only one CPU so code is simple )
*/
nca.ca_name = "cpu";
nca.ca_bus = &sc->sc_bus;
config_found(self, &nca, mbprint);
/* The following machines have an ISA bus */
/* Do ISA first so the interrupt controller is set up! */
nca.ca_name = "isabr";
nca.ca_bus = &sc->sc_bus;
config_found(self, &nca, mbprint);
nca.ca_name = "mpcpcibr";
nca.ca_bus = &sc->sc_bus;
config_found(self, &nca, mbprint);
}
static int
mbprint(aux, pnp)
void *aux;
const char *pnp;
{
if (pnp)
return (QUIET);
return (UNCONF);
}
void
mb_intr_establish(ca, handler, val)
struct confargs *ca;
int (*handler) __P((void *));
void *val;
{
panic("can never mb_intr_establish");
}
void
mb_intr_disestablish(ca)
struct confargs *ca;
{
panic("can never mb_intr_disestablish");
}
caddr_t
mb_cvtaddr(ca)
struct confargs *ca;
{
return (NULL);
}
int
mb_matchname(ca, name)
struct confargs *ca;
char *name;
{
return (strcmp(name, ca->ca_name) == 0);
}
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