8fa1cdb04b
To make this work nice, big changes to the boot unit handling was also required. From now only DEC HW unit numbering are used in boot, to easy match boot device in kernel.
144 lines
3.8 KiB
C
144 lines
3.8 KiB
C
/* $NetBSD: devopen.c,v 1.7 1997/03/15 13:04:26 ragge Exp $ */
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/*
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* Copyright (c) 1997 Ludd, University of Lule}, Sweden.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed at Ludd, University of
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* Lule}, Sweden and its contributors.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/reboot.h>
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#include "lib/libsa/stand.h"
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#include "samachdep.h"
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#include "vaxstand.h"
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unsigned int opendev;
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int
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devopen(f, fname, file)
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struct open_file *f;
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const char *fname;
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char **file;
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{
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int dev, ctlr, unit, part, adapt, i, a[4], x;
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struct devsw *dp;
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extern struct fs_ops nfs_system[];
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extern int cnvtab[];
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char *s, *c;
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dev = B_TYPE(bootdev);
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ctlr = B_CONTROLLER(bootdev);
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unit = B_UNIT(bootdev);
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part = B_PARTITION(bootdev);
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adapt = B_ADAPTOR(bootdev);
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for (i = 0, dp = 0; i < ndevs; i++)
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if (cnvtab[i] == dev)
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dp = devsw + i;
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if ((s = index(fname, '('))) {
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*s++ = 0;
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for (i = 0, dp = devsw; i < ndevs; i++, dp++)
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if (dp->dv_name && strcmp(dp->dv_name, fname) == 0)
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break;
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if (i == ndevs) {
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printf("No such device - Configured devices are:\n");
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for (dp = devsw, i = 0; i < ndevs; i++, dp++)
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if (dp->dv_name)
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printf(" %s", dp->dv_name);
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printf("\n");
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return -1;
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}
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dev = cnvtab[i];
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if ((c = index(s, ')')) == 0)
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goto usage;
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*c++ = 0;
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if (*s) do {
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a[x++] = atoi(s);
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while (*s >= '0' && *s <= '9')
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s++;
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if (*s != ',' && *s != 0)
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goto usage;
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} while (*s++);
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if (x)
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part = a[x - 1];
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if (x > 1)
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unit = a[x - 2];
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if (x > 2)
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ctlr = a[x - 3];
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if (x > 3)
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adapt = a[0];
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*file = c;
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} else
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*file = (char *)fname;
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#ifdef notyet
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if ((u = index(s, ' '))) {
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*u++ = 0;
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if (*u != '-')
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goto usage;
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while (*++u) {
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if (*u == 'a')
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bdev |= RB_ASKNAME;
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else if (*u == 'd')
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bdev |= RB_DEBUG;
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else if (*u == 's')
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bdev |= RB_SINGLE;
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else
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goto usage;
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}
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}
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#endif
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if (!dp->dv_open)
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return(ENODEV);
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f->f_dev = dp;
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opendev = MAKEBOOTDEV(dev, adapt, ctlr, unit, part);
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if (dev > 95) { /* MOP boot over network, root & swap over NFS */
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bcopy(nfs_system, file_system, sizeof(struct fs_ops));
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i = (*dp->dv_open)(f, dp->dv_name);
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} else
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i = (*dp->dv_open)(f, adapt, ctlr, unit, part);
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return i;
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usage:
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printf("usage: dev(adapter,controller,unit,partition)file -asd\n");
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return -1;
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}
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