BSD 4_4_Lite1 release

[unix-history] / usr / src / sys / luna68k / luna68k / swapgeneric.c

/*
* Copyright (c) 1992 OMRON Corporation.
* Copyright (c) 1982, 1986, 1992, 1993
*      The Regents of the University of California.  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 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.
*
* from: hp300/hp300/swapgeneric.c      7.9 (Berkeley) 6/16/93
*
*      @(#)swapgeneric.c       8.2 (Berkeley) 12/6/93
*/

#include <sys/param.h>
#include <sys/conf.h>
#include <sys/buf.h>
#include <sys/systm.h>
#include <sys/reboot.h>

#include <luna68k/dev/device.h>

/*
* 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 sddriver;
extern struct hp_ctlr hp_cinit[];
extern struct hp_device hp_dinit[];

struct  genericconf {
       caddr_t gc_driver;
       char    *gc_name;
       dev_t   gc_root;
} genericconf[] = {
       { (caddr_t)&sddriver,   "sd",   makedev(4, 0) },
       { 0 },
};

setconf()
{
       register struct hp_ctlr *hc;
       register struct hp_device *hd;
       register struct genericconf *gc;
       register char *cp;
       int unit, part, swaponroot = 0;

       if (rootdev != NODEV)
               goto doswap;
       unit = 0;
       part = 0;
       if (boothowto & RB_ASKNAME) {
               char name[128];
retry:
               printf("root device? ");
               gets(name);
               for (gc = genericconf; gc->gc_driver; gc++)
                       if (gc->gc_name[0] == name[0] &&
                           gc->gc_name[1] == name[1])
                               goto gotit;
               printf("use one of:");
               for (gc = genericconf; gc->gc_driver; gc++)
                       printf(" %s%%d", gc->gc_name);
               printf("\n");
               goto retry;
gotit:
               cp = &name[2];
               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 < 'a' || *cp > 'h') {
                       printf("bad/missing partiiton number\n");
                       goto retry;
               }
               part = *cp++ - 'a';
/*
               if (*cp == '*')
                       swaponroot++;
*/
               goto found;
       }

       for (gc = genericconf; gc->gc_driver; gc++) {
               for (hd = hp_dinit; hd->hp_driver; hd++) {
                       if (hd->hp_alive == 0)
                               continue;
                       if (hd->hp_unit == 0 && hd->hp_driver ==
                           (struct driver *)gc->gc_driver) {
                               printf("root on %s0\n", hd->hp_driver->d_name);
                               goto found;
                       }
               }
       }
       printf("no suitable root\n");
       asm("stop #0x2700");
found:
       gc->gc_root = makedev(major(gc->gc_root), (unit * 8) + part );
       rootdev = gc->gc_root;
/*
       printf("using root device: %s%d%c\n", gc->gc_name, unit, 'a' + part);
*/
doswap:
       swdevt[0].sw_dev = argdev = dumpdev =
           makedev(major(rootdev), (minor(rootdev) & ~0x7) + 1);
/*
       printf("using swap device: %s%d%c\n",
              gc->gc_name, unit, 'a' + (minor(swdevt[0].sw_dev) & 0x7));
*/
       /* swap size and dumplo set during autoconfigure */
       if (swaponroot)
               rootdev = dumpdev;
}

gets(cp)
       char *cp;
{
       register char *lp;
       register c;

       lp = cp;
       for (;;) {
               cnputc(c = cngetc());
               switch (c) {
               case '\n':
               case '\r':
                       *lp++ = '\0';
                       return;
               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;
               }
       }
}