NetBSD/sys/dev/ofw/ofbus.c

122 lines
3.7 KiB
C

/* $NetBSD: ofbus.c,v 1.16 2002/10/02 16:34:32 thorpej Exp $ */
/*
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* All rights reserved.
*
* 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 TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ofbus.c,v 1.16 2002/10/02 16:34:32 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/ofw/openfirm.h>
int ofbus_match __P((struct device *, struct cfdata *, void *));
void ofbus_attach __P((struct device *, struct device *, void *));
static int ofbus_print __P((void *, const char *));
CFATTACH_DECL(ofbus, sizeof(struct device),
ofbus_match, ofbus_attach, NULL, NULL);
static int
ofbus_print(aux, pnp)
void *aux;
const char *pnp;
{
struct ofbus_attach_args *oba = aux;
if (pnp)
printf("%s at %s", oba->oba_ofname, pnp);
else
printf(" (%s)", oba->oba_ofname);
return UNCONF;
}
int
ofbus_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct ofbus_attach_args *oba = aux;
if (strcmp(oba->oba_busname, "ofw"))
return (0);
if (!OF_child(oba->oba_phandle))
return (0);
return (1);
}
void
ofbus_attach(parent, dev, aux)
struct device *parent, *dev;
void *aux;
{
struct ofbus_attach_args *oba = aux;
struct ofbus_attach_args oba2;
char name[64];
int child, units;
printf("\n");
/*
* This is a hack to make the probe work on the scsi (and ide) bus.
* YES, I THINK IT IS A BUG IN THE OPENFIRMWARE TO NOT PROBE ALL
* DEVICES ON THESE BUSSES.
*/
units = 1;
name[0] = 0;
if (OF_getprop(oba->oba_phandle, "name", name, sizeof name) > 0) {
if (!strcmp(name, "scsi"))
units = 7; /* What about wide or hostid != 7? XXX */
else if (!strcmp(name, "ide"))
units = 2;
}
for (child = OF_child(oba->oba_phandle); child != 0;
child = OF_peer(child)) {
oba2.oba_busname = "ofw";
of_packagename(child, name, sizeof name);
oba2.oba_phandle = child;
for (oba2.oba_unit = 0; oba2.oba_unit < units;
oba2.oba_unit++) {
if (units > 1) {
sprintf(oba2.oba_ofname, "%s@%d", name,
oba2.oba_unit);
} else {
strcpy(oba2.oba_ofname, name);
}
config_found(dev, &oba2, ofbus_print);
}
}
}