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Fixed partition table bug

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svn path=/trunk/; revision=1938
This commit is contained in:
Eric Kohl 2001-06-02 15:53:26 +00:00
parent 4ce8aabb3c
commit c3b862d61d
1 changed files with 32 additions and 5 deletions
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37
reactos/drivers/dd/ide/ide.c
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@ -1,4 +1,4 @@
/* $Id: ide.c,v 1.40 2001/04/30 05:28:17 rex Exp $
/* $Id: ide.c,v 1.41 2001/06/02 15:53:26 ekohl Exp $
*
* IDE.C - IDE Disk driver
* written by Rex Jolliff
@ -76,6 +76,9 @@
#define VERSION "V0.1.4"
/* remove this to activate the old behaviour of partition chain code (EK) */
#define PARTITION_FIX
// ------------------------------------------------------- File Static Data
typedef struct _IDE_CONTROLLER_PARAMETERS
@ -492,6 +495,9 @@ IDECreateDevices(IN PDRIVER_OBJECT DriverObject,
BOOLEAN ExtendedPart = FALSE;
ULONG PartitionOffset = 0;
ULONG offsetToNextPartition = 0;
#ifdef PARTITION_FIX
ULONG ExtendedOffset;
#endif
// Copy I/O port offsets for convenience
CommandPort = ControllerExtension->CommandPortBase;
@ -541,6 +547,7 @@ IDECreateDevices(IN PDRIVER_OBJECT DriverObject,
SectorCount =
(ULONG)(DrvParms.LogicalCyls * DrvParms.LogicalHeads * DrvParms.SectorsPerTrack);
}
DPRINT("SectorCount %lu\n", SectorCount);
RC = IDECreateDevice(DriverObject,
&RawDeviceObject,
@ -577,6 +584,9 @@ IDECreateDevices(IN PDRIVER_OBJECT DriverObject,
// read the partition table (chain)
PartitionOffset = 0;
#ifdef PARTITION_FIX
ExtendedOffset = 0;
#endif
PartitionNum = 1;
do
@ -594,8 +604,8 @@ IDECreateDevices(IN PDRIVER_OBJECT DriverObject,
else
{
// build devices for all partitions in table
DPRINT("Read partition on %wZ at %ld\n",
&UnicodeDeviceDirName,
DPRINT("Read partition on %wZ at %ld\n",
&UnicodeDeviceDirName,
PartitionOffset);
for (PartitionIdx = 0; PartitionIdx < 4; PartitionIdx++)
{
@ -605,7 +615,8 @@ IDECreateDevices(IN PDRIVER_OBJECT DriverObject,
// if the partition entry is in use, create a device for it
if (IsRecognizedPartition(p->PartitionType))
{
DPRINT("%wZ ptbl entry:%d type:%02x Start:%lu Size:%lu\n", &UnicodeDeviceDirName,
DPRINT("Partition: %wZ entry:%d type:%02x Start:%lu Size:%lu\n",
&UnicodeDeviceDirName,
PartitionIdx,
p->PartitionType,
p->StartingBlock,
@ -632,16 +643,32 @@ IDECreateDevices(IN PDRIVER_OBJECT DriverObject,
else if (IsExtendedPartition(p->PartitionType))
{
// Create devices for logical partitions within an extended partition
DPRINT("Extended found: entry:%d type:%02x Start:%lu Size:%lu\n", &UnicodeDeviceDirName,
DPRINT("Extended: entry:%d type:%02x Start:%lu Size:%lu\n",
PartitionIdx,
p->PartitionType,
p->StartingBlock,
p->SectorCount);
ExtendedPart = TRUE;
#ifdef PARTITION_FIX
if (ExtendedOffset == 0)
{
ExtendedOffset = p->StartingBlock;
offsetToNextPartition = 0;
}
else
{
offsetToNextPartition = p->StartingBlock;
}
#else
offsetToNextPartition = p->StartingBlock;
#endif
}
}
#ifdef PARTITION_FIX
PartitionOffset = ExtendedOffset + offsetToNextPartition;
#else
PartitionOffset += offsetToNextPartition;
#endif
}
}
while (ExtendedPart == TRUE);