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/* $NetBSD: swapgeneric.c,v 1.9 1996/10/13 03:39:55 christos Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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 the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* @(#)swapgeneric.c 8.1 (Berkeley) 6/16/93
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/buf.h>
#include <sys/systm.h>
#include <sys/reboot.h>
#include <pmax/dev/device.h>
extern int ffs_mountroot();
int (*mountroot)() = ffs_mountroot;
/*
* Generic configuration; all in one
*/
dev_t rootdev = NODEV;
dev_t argdev = NODEV;
dev_t dumpdev = NODEV;
int nswap;
struct swdevt swdevt[] = {
{ -1, 1, 0 },
{ NODEV, 0, 0 },
};
int dmmin, dmmax, dmtext;
extern struct driver rzdriver;
struct genericconf {
caddr_t gc_driver;
char *gc_name;
dev_t gc_root;
} genericconf[] = {
{ (caddr_t)&rzdriver, "rz", makedev(21, 0), },
{ 0 },
};
setconf()
{
register struct pmax_scsi_device *dp;
register struct genericconf *gc;
register char *cp, *gp;
int unit, swaponroot = 0;
char *root_swap;
/*
* If we are running on the in memory, mini-root; then we just need
* to set the swap device.
*/
if (boothowto & RB_MINIROOT)
root_swap = "swap";
else {
if (rootdev != NODEV) {
swdevt[0].sw_dev = argdev = dumpdev =
makedev(major(rootdev), minor(rootdev)+1);
return;
}
root_swap = "root";
}
unit = 0;
if (boothowto & RB_ASKNAME) {
char name[128];
retry:
printf("%s device? ", root_swap);
gets(name);
for (gc = genericconf; gc->gc_driver; gc++)
for (cp = name, gp = gc->gc_name; *cp == *gp; cp++)
if (*++gp == 0)
goto gotit;
printf("use one of:");
for (gc = genericconf; gc->gc_driver; gc++)
printf(" %s%%d", gc->gc_name);
printf("\n");
goto retry;
gotit:
if (*++cp < '0' || *cp > '9') {
printf("bad/missing unit number\n");
goto retry;
}
while (*cp >= '0' && *cp <= '9')
unit = 10 * unit + *cp++ - '0';
if (*cp == '*')
swaponroot++;
goto found;
}
for (gc = genericconf; gc->gc_driver; gc++) {
for (dp = scsi_dinit; dp->sd_driver; dp++) {
if (dp->sd_alive == 0)
continue;
if (dp->sd_unit == unit &&
(caddr_t) dp->sd_driver == gc->gc_driver) {
printf("root on %s%d%c\n",
dp->sd_driver->d_name, unit,
"ab"[swaponroot]);
goto found;
}
}
}
printf("no suitable %s\n", root_swap);
goto retry;
found:
if (boothowto & RB_MINIROOT) {
swdevt[0].sw_dev = argdev = dumpdev =
makedev(major(gc->gc_root), unit*8+1);
} else {
rootdev = makedev(major(gc->gc_root), unit*8);
swdevt[0].sw_dev = argdev = dumpdev =
makedev(major(rootdev), minor(rootdev)+1);
/* swap size and dumplo set during autoconfigure */
if (swaponroot)
rootdev = dumpdev;
}
}
gets(cp)
char *cp;
{
register char *lp;
register c;
int s;
lp = cp;
s = spltty();
for (;;) {
cnputc(c = cngetc());
switch (c) {
case '\r':
cnputc('\n');
*lp++ = '\0';
break;
case '\n':
cnputc('\r');
*lp++ = '\0';
break;
case '\b':
case '\177':
if (lp > cp) {
lp--;
cnputc(' ');
cnputc('\b');
}
continue;
case '#':
lp--;
if (lp < cp)
lp = cp;
continue;
case '@':
case 'u'&037:
lp = cp;
cnputc('\n');
continue;
default:
*lp++ = c;
continue;
}
break;
}
splx(s);
}
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