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[src/trunk]: src/sys/arch/pica/pica Moved to /cvsroot/syssrc/sys/arch/arc/arc...
details: https://anonhg.NetBSD.org/src/rev/a70575c6c720
branches: trunk
changeset: 481103:a70575c6c720
user: soda <soda%NetBSD.org@localhost>
date: Sun Jan 23 20:09:09 2000 +0000
description:
Moved to /cvsroot/syssrc/sys/arch/arc/arc/disksubr.c,v
diffstat:
sys/arch/pica/pica/disksubr.c | 340 ------------------------------------------
1 files changed, 0 insertions(+), 340 deletions(-)
diffs (truncated from 344 to 300 lines):
diff -r 28fd0b246602 -r a70575c6c720 sys/arch/pica/pica/disksubr.c
--- a/sys/arch/pica/pica/disksubr.c Sun Jan 23 20:09:08 2000 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,340 +0,0 @@
-/* $NetBSD: disksubr.c,v 1.5 1997/08/27 11:24:11 bouyer Exp $ */
-
-/*
- * Copyright (c) 1994, 1995 Carnegie-Mellon University.
- * All rights reserved.
- *
- * Authors: Keith Bostic, Chris G. Demetriou, Per Fogelstrom (R4000)
- *
- * Permission to use, copy, modify and distribute this software and
- * its documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
- * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution%CS.CMU.EDU@localhost
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie the
- * rights to redistribute these changes.
- */
-
-#include <sys/param.h>
-#include <sys/buf.h>
-#include <sys/ioccom.h>
-#include <sys/device.h>
-#include <sys/disklabel.h>
-#include <sys/disk.h>
-
-#include <dev/scsipi/scsi_all.h>
-#include <dev/scsipi/scsipi_all.h>
-#include <dev/scsipi/scsiconf.h>
-
-#include <machine/cpu.h>
-#include <machine/autoconf.h>
-
-extern struct device *bootdv;
-
-/* was this the boot device ? */
-void
-dk_establish(dk, dev)
- struct disk *dk;
- struct device *dev;
-{
-#ifdef NOTDEF
- /* XXX: sd -> scsibus -> esp */
- struct bootpath *bp = ((struct esp_softc *)dev->dv_parent->dv_parent)->sc_bp;
- char name[10];
-
-#define CRAZYMAP(v) ((v) == 3 ? 0 : (v) == 0 ? 3 : (v))
-
- if (bp == NULL) {
- printf("no boot path\n");
- return;
- }
- sprintf(name, "%s%d", bp->name, CRAZYMAP(bp->val[0]));
- if (strcmp(name, dev->dv_xname) == 0) {
- bootdv = dev; /* got it! */
- }
-#endif
- return;
-}
-
-/*
- * Attempt to read a disk label from a device
- * using the indicated stategy routine.
- * The label must be partly set up before this:
- * secpercyl and anything required in the strategy routine
- * (e.g., sector size) must be filled in before calling us.
- * Returns null on success and an error string on failure.
- */
-char *
-readdisklabel(dev, strat, lp, clp)
- dev_t dev;
- void (*strat)();
- struct disklabel *lp;
- struct cpu_disklabel *clp;
-{
- struct buf *bp;
- struct disklabel *dlp;
- struct dos_partition *dp = clp->dosparts;
- char *msg = NULL;
- int dospartoff = 0;
- int i;
-
- /* minimal requirements for archtypal disk label */
- if (lp->d_secperunit == 0)
- lp->d_secperunit = 0x1fffffff;
- lp->d_npartitions = RAW_PART + 1;
- for(i = 0; i < RAW_PART; i++) {
- lp->d_partitions[i].p_size = 0;
- lp->d_partitions[i].p_offset = 0;
- }
- if (lp->d_partitions[RAW_PART].p_size == 0)
- lp->d_partitions[RAW_PART].p_size = 0x1fffffff;
- lp->d_partitions[RAW_PART].p_offset = 0;
-
- /* obtain buffer to probe drive with */
- bp = geteblk((int)lp->d_secsize);
- bp->b_dev = dev;
-
- /* do dos partitions in the process of getting disklabel? */
- if (dp) {
- /* read master boot record */
- bp->b_blkno = DOSBBSECTOR;
- bp->b_bcount = lp->d_secsize;
- bp->b_flags = B_BUSY | B_READ;
- bp->b_resid = 0;
- (*strat)(bp);
-
- /* if successful, wander through dos partition table */
- if (biowait(bp)) {
- msg = "dos partition I/O error";
- goto done;
- } else if (*(unsigned int *)(bp->b_data) == 0x8ec033fa) {
- /* XXX how do we check veracity/bounds of this? */
- bcopy(bp->b_data + DOSPARTOFF, dp, NDOSPART * sizeof(*dp));
- for (i = 0; i < NDOSPART; i++, dp++) {
- /* is this ours? */
- if (dp->dp_size && dp->dp_typ == DOSPTYP_386BSD
- && dospartoff == 0) {
- dospartoff = dp->dp_start;
-
- /* set part a to show NetBSD part */
- lp->d_partitions[0].p_size = dp->dp_size;
- lp->d_partitions[0].p_offset = dp->dp_start;
- lp->d_ntracks = dp->dp_ehd + 1;
- lp->d_nsectors = DPSECT(dp->dp_esect);
- lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors;
- }
- }
- }
-
- }
- /* next, dig out disk label */
- bp->b_blkno = dospartoff + LABELSECTOR;
- bp->b_resid = 0;
- bp->b_bcount = lp->d_secsize;
- bp->b_flags = B_BUSY | B_READ;
- (*strat)(bp);
-
- /* if successful, locate disk label within block and validate */
- if (biowait(bp)) {
- msg = "disk label read error";
- goto done;
- }
-
- dlp = (struct disklabel *)(bp->b_un.b_addr + LABELOFFSET);
- if (dlp->d_magic == DISKMAGIC) {
- if (dkcksum(dlp)) {
- msg = "NetBSD disk label corrupted";
- goto done;
- }
- *lp = *dlp;
- goto done;
- }
- msg = "no disk label";
-done:
- bp->b_flags = B_INVAL | B_AGE | B_READ;
- brelse(bp);
- return (msg);
-}
-
-/*
- * Check new disk label for sensibility before setting it.
- */
-int
-setdisklabel(olp, nlp, openmask, clp)
- register struct disklabel *olp, *nlp;
- u_long openmask;
- struct cpu_disklabel *clp;
-{
- register i;
- register struct partition *opp, *npp;
-
- /* sanity clause */
- if (nlp->d_secpercyl == 0 || nlp->d_secsize == 0 ||
- (nlp->d_secsize % DEV_BSIZE) != 0)
- return(EINVAL);
-
-#ifdef notdef
- /* XXX WHY WAS THIS HERE?! */
- /* special case to allow disklabel to be invalidated */
- if (nlp->d_magic == 0xffffffff) {
- *olp = *nlp;
- return (0);
- }
-#endif
-
- if (nlp->d_magic != DISKMAGIC || nlp->d_magic2 != DISKMAGIC ||
- dkcksum(nlp) != 0)
- return (EINVAL);
-
- while ((i = ffs((long)openmask)) != 0) {
- i--;
- openmask &= ~(1 << i);
- if (nlp->d_npartitions <= i)
- return (EBUSY);
- opp = &olp->d_partitions[i];
- npp = &nlp->d_partitions[i];
- if (npp->p_offset != opp->p_offset || npp->p_size < opp->p_size)
- return (EBUSY);
- /*
- * Copy internally-set partition information
- * if new label doesn't include it. XXX
- */
- if (npp->p_fstype == FS_UNUSED && opp->p_fstype != FS_UNUSED) {
- npp->p_fstype = opp->p_fstype;
- npp->p_fsize = opp->p_fsize;
- npp->p_frag = opp->p_frag;
- npp->p_cpg = opp->p_cpg;
- }
- }
- nlp->d_checksum = 0;
- nlp->d_checksum = dkcksum(nlp);
- *olp = *nlp;
- return (0);
-}
-
-/*
- * Write disk label back to device after modification.
- * this means write out the Rigid disk blocks to represent the
- * label. Hope the user was carefull.
- */
-int
-writedisklabel(dev, strat, lp, clp)
- dev_t dev;
- void (*strat)();
- register struct disklabel *lp;
- struct cpu_disklabel *clp;
-{
- struct buf *bp;
- struct disklabel *dlp;
- struct dos_partition *dp = clp->dosparts;
- int error = 0, i;
- int dospartoff = 0;
-
- bp = geteblk((int)lp->d_secsize);
- bp->b_dev = dev;
-
- /* do dos partitions in the process of getting disklabel? */
- if (dp) {
- /* read master boot record */
- bp->b_blkno = DOSBBSECTOR;
- bp->b_bcount = lp->d_secsize;
- bp->b_flags = B_BUSY | B_READ;
- bp->b_resid = 0;
- (*strat)(bp);
-
- if (((error = biowait(bp)) == 0)
- && *(unsigned int *)(bp->b_data) == 0x8ec033fa) {
- /* XXX how do we check veracity/bounds of this? */
- bcopy(bp->b_data + DOSPARTOFF, dp, NDOSPART * sizeof(*dp));
- for (i = 0; i < NDOSPART; i++, dp++) {
- /* is this ours? */
- if (dp->dp_size && dp->dp_typ == DOSPTYP_386BSD
- && dospartoff == 0) {
- dospartoff = dp->dp_start;
- }
- }
- }
-
- }
- bp->b_blkno = dospartoff + LABELSECTOR;
- bp->b_resid = 0;
- bp->b_bcount = lp->d_secsize;
- bp->b_flags = B_READ; /* get current label */
- (*strat)(bp);
- if (error = biowait(bp))
- goto done;
-
- dlp = (struct disklabel *)(bp->b_un.b_addr + LABELOFFSET);
- *dlp = *lp; /* struct assignment */
-
- bp->b_flags = B_WRITE;
- (*strat)(bp);
- error = biowait(bp);
-
-done:
- brelse(bp);
- return (error);
-}
-
-
-/*
- * Determine the size of the transfer, and make sure it is
- * within the boundaries of the partition. Adjust transfer
- * if needed, and signal errors or early completion.
- */
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