/* $OpenBSD: autoconf.c,v 1.31 2007/06/01 19:25:09 deraadt Exp $ */
/* $NetBSD: autoconf.c,v 1.16 1996/11/13 21:13:04 cgd Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
*
* @(#)autoconf.c 8.4 (Berkeley) 10/1/93
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/disklabel.h>
#include <sys/conf.h>
#include <sys/reboot.h>
#include <sys/device.h>
#include <uvm/uvm_extern.h>
#include <machine/autoconf.h>
#include <machine/rpb.h>
#include <machine/prom.h>
#include <machine/cpuconf.h>
#include <machine/intr.h>
#include <dev/cons.h>
extern char root_device[17]; /* XXX */
struct device *booted_device;
int booted_partition;
struct bootdev_data *bootdev_data;
char boot_dev[128];
void parse_prom_bootdev(void);
int atoi(char *);
/*
* cpu_configure:
* called at boot time, configure all devices on system
*/
void
cpu_configure()
{
parse_prom_bootdev();
softintr_init();
/*
* Disable interrupts during autoconfiguration. splhigh() won't
* work, because it simply _raises_ the IPL, so if machine checks
* are disabled, they'll stay disabled. Machine checks are needed
* during autoconfig.
*/
(void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH);
if (config_rootfound("mainbus", "mainbus") == NULL)
panic("no mainbus found");
(void)spl0();
hwrpb_restart_setup();
cold = 0;
}
void
diskconf(void)
{
struct device *bootdv;
int bootpartition;
if (booted_device == NULL)
printf("WARNING: can't figure what device matches \"%s\"\n",
boot_dev);
bootdv = booted_device;
bootpartition = booted_partition;
setroot(bootdv, bootpartition, RB_USERREQ);
dumpconf();
}
void
parse_prom_bootdev()
{
static char hacked_boot_dev[128];
static struct bootdev_data bd;
char *cp, *scp, *boot_fields[8];
int i, done;
booted_device = NULL;
booted_partition = 0;
bootdev_data = NULL;
bcopy(bootinfo.booted_dev, hacked_boot_dev, sizeof hacked_boot_dev);
#if 0
printf("parse_prom_bootdev: boot dev = \"%s\"\n", boot_dev);
#endif
i = 0;
scp = cp = hacked_boot_dev;
for (done = 0; !done; cp++) {
if (*cp != ' ' && *cp != '\0')
continue;
if (*cp == '\0')
done = 1;
*cp = '\0';
boot_fields[i++] = scp;
scp = cp + 1;
if (i == 8)
done = 1;
}
if (i != 8)
return; /* doesn't look like anything we know! */
#if 0
printf("i = %d, done = %d\n", i, done);
for (i--; i >= 0; i--)
printf("%d = %s\n", i, boot_fields[i]);
#endif
bd.protocol = boot_fields[0];
bd.bus = atoi(boot_fields[1]);
bd.slot = atoi(boot_fields[2]);
bd.channel = atoi(boot_fields[3]);
bd.remote_address = boot_fields[4];
bd.unit = atoi(boot_fields[5]);
bd.boot_dev_type = atoi(boot_fields[6]);
bd.ctrl_dev_type = boot_fields[7];
#if 0
printf("parsed: proto = %s, bus = %d, slot = %d, channel = %d,\n",
bd.protocol, bd.bus, bd.slot, bd.channel);
printf("\tremote = %s, unit = %d, dev_type = %d, ctrl_type = %s\n",
bd.remote_address, bd.unit, bd.boot_dev_type, bd.ctrl_dev_type);
#endif
bootdev_data = &bd;
}
int
atoi(s)
char *s;
{
int n, neg;
n = 0;
neg = 0;
while (*s == '-') {
s++;
neg = !neg;
}
while (*s != '\0') {
if (*s < '0' || *s > '9')
break;
n = (10 * n) + (*s - '0');
s++;
}
return (neg ? -n : n);
}
void
device_register(dev, aux)
struct device *dev;
void *aux;
{
if (bootdev_data == NULL) {
/*
* There is no hope.
*/
return;
}
if (platform.device_register)
(*platform.device_register)(dev, aux);
}
struct nam2blk nam2blk[] = {
{ "st", 2 },
{ "cd", 3 },
{ "fd", 4 },
{ "rd", 6 },
{ "sd", 8 },
{ "wd", 0 },
{ "raid", 16 },
{ NULL, -1 }
};