[src/trunk]: src/sys/arch/amiga/amiga Support for a ... somewhat strange meth...

[is <is%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1801d76cd588
branches:  trunk
changeset: 473358:1801d76cd588
user:      is <is%NetBSD.org@localhost>
date:      Sun May 30 21:21:36 1999 +0000

description:
Support for a ... somewhat strange method of doing >512 byte/block
ADOSFS partitions. By Matthias Scheler via PR 2559. A diagnostic
check was updated by myself.

diffstat:

 sys/arch/amiga/amiga/disksubr.c |  33 +++++++++++++++++++++++++--------
 1 files changed, 25 insertions(+), 8 deletions(-)

diffs (61 lines):

diff -r 72e569eee022 -r 1801d76cd588 sys/arch/amiga/amiga/disksubr.c
--- a/sys/arch/amiga/amiga/disksubr.c   Sun May 30 21:13:04 1999 +0000
+++ b/sys/arch/amiga/amiga/disksubr.c   Sun May 30 21:21:36 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: disksubr.c,v 1.29 1999/04/28 22:35:27 is Exp $ */
+/*     $NetBSD: disksubr.c,v 1.30 1999/05/30 21:21:36 is Exp $ */
 
 /*
  * Copyright (c) 1994 Christian E. Hopps
@@ -313,7 +313,8 @@
                        lp->d_npartitions = (pp - lp->d_partitions) + 1;
 
 #ifdef DIAGNOSTIC
-               if (lp->d_secpercyl != (pbp->e.secpertrk * pbp->e.numheads)) {
+               if (lp->d_secpercyl * lp->d_secsize !=
+                   (pbp->e.secpertrk * pbp->e.numheads * pbp->e.sizeblock<<2)) {
                        if (pbp->partname[0] < sizeof(pbp->partname))
                                pbp->partname[pbp->partname[0] + 1] = 0;
                        else
@@ -360,19 +361,35 @@
                }
 
                pp->p_size = (pbp->e.highcyl - pbp->e.lowcyl + 1)
-                   * pbp->e.secpertrk * pbp->e.numheads;
+                   * pbp->e.secpertrk * pbp->e.numheads
+                   * (pbp->e.sizeblock >> 7);
                pp->p_offset = pbp->e.lowcyl * pbp->e.secpertrk
-                   * pbp->e.numheads;
+                   * pbp->e.numheads
+                   * (pbp->e.sizeblock >> 7);
                pp->p_fstype = adt.fstype;
                if (adt.archtype == ADT_AMIGADOS) {
                        /*
                         * Save reserved blocks at begin in cpg and
                         *  adjust size by reserved blocks at end
                         */
-                       pp->p_fsize = 512;
-                       pp->p_frag = pbp->e.secperblk;
-                       pp->p_cpg = pbp->e.resvblocks;
-                       pp->p_size -= pbp->e.prefac;
+                       int bsize,secperblk;
+
+                       bsize = pbp->e.sizeblock << 2;
+                       secperblk = pbp->e.secperblk;
+                       while (bsize > 512) {
+                               bsize >>= 1;
+                               secperblk <<= 1;
+                       }
+                       if (bsize == 512) {
+                               pp->p_fsize = bsize;
+                               pp->p_frag = secperblk;
+                               pp->p_cpg = pbp->e.resvblocks;
+                               pp->p_size -= pbp->e.prefac
+                                             * (pbp->e.sizeblock >> 7);
+                       } else {
+                               adt.archtype = ADT_UNKNOWN;
+                               adt.fstype = FS_UNUSED;
+                       }
                } else if (pbp->e.tabsize > 22 && ISFSARCH_NETBSD(adt)) {
                        pp->p_fsize = pbp->e.fsize;
                        pp->p_frag = pbp->e.frag;