patch-1.3.99 linux/arch/m68k/atari/atapart.c

• Lines: 159
• Date: Thu Jan 1 02:00:00 1970
• Orig file: v1.3.98/linux/arch/m68k/atari/atapart.c
• Orig date: Sat Apr 27 15:19:45 1996

diff -u --recursive --new-file v1.3.98/linux/arch/m68k/atari/atapart.c linux/arch/m68k/atari/atapart.c
@@ -1,158 +0,0 @@
-/*
- * linux/atari/atapart.c
- *
- * Atari partition checking driver for 680x0 Linux
- * Written by Andreas Schwab (schwab@ls5.informatik.uni-dortmund.de)
- *
- * 5/3/94 Roman Hodek:
- *   Added some sanity checks
- *   Linux device names start from 1 not 0, so I changed the initial value
- *   for i to 1.
- *
- * 10/09/94 Guenther Kelleter:
- *   Added support for ICD/Supra partition info.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file README.legal in the main directory of this archive
- * for more details.
- */
-
-#include <linux/fs.h>
-#include <linux/genhd.h>
-#include <linux/kernel.h>
-
-#include <asm/atari_rootsec.h>
-
-/* ++guenther: this should be settable by the user ("make config")?.
- */
-#define ICD_PARTS
-
-extern int current_minor;
-
-void
-atari_check_partition (struct gendisk *hd, unsigned int dev)
-{
-  int i, minor = current_minor, m_lim = current_minor + hd->max_p;
-  struct buffer_head *bh;
-  struct rootsector *rs;
-  struct partition_info *pi;
-  ulong extensect;
-#ifdef ICD_PARTS
-  int part_fmt = 0; /* 0:unknown, 1:AHDI, 2:ICD/Supra */
-#endif
-
-  bh = bread (dev, 0, 1024);
-  if (!bh)
-    {
-      printk (" unable to read block 0\n");
-      return;
-    }
-
-  rs = (struct rootsector *) bh->b_data;
-  printk ("  %s%c:", hd->major_name, 'a' + (minor >> hd->minor_shift));
-
-  pi = &rs->part[0];
-  for (i = 1; pi < &rs->part[4] && minor < m_lim; i++, minor++, pi++)
-    {
-      if (pi->flg & 1)
-  /* active partition */
-  {
-    if (memcmp (pi->id, "XGM", 3) == 0)
-      /* extension partition */
-      {
-        struct rootsector *xrs;
-        struct buffer_head *xbh;
-        ulong partsect;
-
-#ifdef ICD_PARTS
-        part_fmt = 1;
-#endif
-        partsect = extensect = pi->st;
-        while (1)
-      {
-        xbh = bread (dev, partsect / 2, 1024);
-        if (!xbh)
-          {
-            printk (" block %ld read failed\n", partsect);
-            return;
-          }
-        if (partsect & 1)
-          xrs = (struct rootsector *) &xbh->b_data[512];
-        else
-          xrs = (struct rootsector *) &xbh->b_data[0];
-
-		/* ++roman: sanity check: bit 0 of flg field must be set */
-		if (!(xrs->part[0].flg & 1)) {
-			printk( "\nFirst sub-partition in extended partition is not valid!\n" );
-			break;
-		}
-		
-        hd->part[minor].start_sect = partsect + xrs->part[0].st;
-        hd->part[minor].nr_sects = xrs->part[0].siz;
-        printk (" %s%c%d", hd->major_name,
-            'a' + (minor >> hd->minor_shift), i);
-
-		if (!(xrs->part[1].flg & 1)) {
-			/* end of linked partition list */
-			brelse( xbh );
-			break;
-		}
-		if (memcmp( xrs->part[1].id, "XGM", 3 ) != 0) {
-			printk( "\nID of extended partition is not XGM!\n" );
-			brelse( xbh );
-			break;
-		}
-		
-		partsect = xrs->part[1].st + extensect;
-        brelse (xbh);
-        i++;
-        minor++;
-        if (minor >= m_lim) {
-			printk( "\nMaximum number of partitions reached!\n" );
-			break;
-		}
-      }
-      }
-    else
-      {
-        /* we don't care about other id's */
-        hd->part[minor].start_sect = pi->st;
-        hd->part[minor].nr_sects = pi->siz;
-        printk (" %s%c%d", hd->major_name,
-            'a' + (minor >> hd->minor_shift), i);
-
-      }
-  }
-    }
-#ifdef ICD_PARTS
-  if ( part_fmt!=1 ) /* no extended partitions -> test ICD-format */
-  {
-    pi = &rs->icdpart[0];
-    /* sanity check: no ICD format if first partition invalid */
-    if (memcmp (pi->id, "GEM", 3) == 0 ||
-        memcmp (pi->id, "BGM", 3) == 0 ||
-        memcmp (pi->id, "RAW", 3) == 0 )
-    {
-      for (i = 1; pi < &rs->icdpart[8] && minor < m_lim; i++, minor++, pi++)
-      {
-        /* accept only GEM,BGM,RAW partitions */
-        if (pi->flg & 1 && 
-            (memcmp (pi->id, "GEM", 3) == 0 ||
-             memcmp (pi->id, "BGM", 3) == 0 ||
-             memcmp (pi->id, "RAW", 3) == 0) )
-        {
-          part_fmt = 2;
-          hd->part[minor].start_sect = pi->st;
-          hd->part[minor].nr_sects = pi->siz;
-          printk (" %s%c%d", hd->major_name,
-              'a' + (minor >> hd->minor_shift), i);
-        }
-      }
-    }
-  }
-#endif
-  brelse (bh);
-
-  printk ("\n");
-}
-