126 lines
4.3 KiB
C
126 lines
4.3 KiB
C
/* $NetBSD: sd_compat.c,v 1.3 1994/10/26 07:25:08 cgd Exp $ */
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/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Van Jacobson of Lawrence Berkeley Laboratory.
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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 by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)sd_compat.c 8.1 (Berkeley) 6/10/93
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*/
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/*
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* Compatibility for SCSI disks without labels.
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*/
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#include "sd.h"
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#if NSD > 0
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#include <sys/param.h>
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#include <sys/disklabel.h>
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#include <hp300/dev/device.h>
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#include <hp300/dev/sdvar.h>
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/*
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* Since the SCSI standard tends to hide the disk structure, we define
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* partitions in terms of DEV_BSIZE blocks. The default partition table
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* (for an unlabeled disk) reserves 512K for a boot area, has an 8 meg
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* root (A) and 32 meg of swap (B). The rest of the space on the drive
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* goes in the G partition. As usual, the C partition covers the entire
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* disk (including the boot area).
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*
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* We also define the D, E, F and H partitions as an alternative to B and G.
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* D is 48Mb, starts after A and is intended for swapping.
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* E is 50Mb, starts after D and is intended for /usr.
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* F starts after E and is what ever is left.
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* H starts after D and is what ever is left (i.e. combo of E and F).
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*/
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struct partition sddefaultpart[] = {
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{ 16384, 1024, 1024, FS_BSDFFS, 8 },
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{ 65536, 17408, 0, FS_SWAP, 0 },
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{ 0, 0, 0, FS_BOOT, 0 },
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{ 98304, 17408, 0, FS_SWAP, 0 },
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{ 102400, 115712, 1024, FS_BSDFFS, 8 },
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{ 0, 218112, 1024, FS_BSDFFS, 8 },
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{ 0, 82944, 1024, FS_BSDFFS, 8 },
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{ 0, 115712, 1024, FS_BSDFFS, 8 }
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};
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int sdnumdefaultpart = sizeof(sddefaultpart)/sizeof(sddefaultpart[0]);
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extern struct sd_softc sd_softc[];
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sdmakedisklabel(unit, lp)
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int unit;
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register struct disklabel *lp;
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{
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register struct sd_softc *sc = &sd_softc[unit];
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register struct partition *pi, *dpi;
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register int dcount;
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lp->d_secperunit = sc->sc_blks;
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lp->d_rpm = 3600;
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lp->d_interleave = 1;
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if (sc->sc_flags & SDF_RMEDIA)
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lp->d_flags |= D_REMOVABLE;
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lp->d_npartitions = sdnumdefaultpart;
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pi = lp->d_partitions;
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dpi = sddefaultpart;
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dcount = sdnumdefaultpart;
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while (dcount-- > 0)
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*pi++ = *dpi++;
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pi = lp->d_partitions;
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/*
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* C gets everything
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*/
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pi[2].p_size = sc->sc_blks;
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/*
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* G gets from end of B to end of disk
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*/
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pi[6].p_size = sc->sc_blks - pi[6].p_offset;
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/*
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* H gets from end of D to end of disk
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*/
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pi[7].p_size = sc->sc_blks - pi[7].p_offset;
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/*
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* If disk is big enough, define E and F
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*/
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if (sc->sc_blks > pi[5].p_offset)
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pi[5].p_size = sc->sc_blks - pi[5].p_offset;
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else {
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pi[4].p_offset = pi[4].p_size = 0;
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pi[5].p_offset = pi[5].p_size = 0;
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}
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}
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#endif
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