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Detect and print BIOS disk geometry.
svn path=/trunk/; revision=4602
This commit is contained in:
parent
0f71890bc8
commit
392883e81f
1 changed files with 121 additions and 3 deletions
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@ -16,7 +16,7 @@
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* along with this program; if not, write to the Free Software
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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*/
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/* $Id: disk.c,v 1.25 2003/04/27 10:50:07 ekohl Exp $
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/* $Id: disk.c,v 1.26 2003/04/27 18:10:38 ekohl Exp $
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*
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*
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* COPYRIGHT: See COPYING in the top level directory
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PROJECT: ReactOS kernel
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@ -87,6 +87,9 @@ static VOID
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DiskClassUpdatePartitionDeviceObjects (IN PDEVICE_OBJECT DeviceObject,
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DiskClassUpdatePartitionDeviceObjects (IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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IN PIRP Irp);
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static VOID
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ScsiDiskUpdateFixedDiskGeometry(IN PDEVICE_EXTENSION DeviceExtension);
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/* FUNCTIONS ****************************************************************/
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/* FUNCTIONS ****************************************************************/
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@ -628,6 +631,8 @@ DiskClassCreateDeviceObject(IN PDRIVER_OBJECT DriverObject,
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DPRINT(" Number of partitions: %u\n", PartitionList->PartitionCount);
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DPRINT(" Number of partitions: %u\n", PartitionList->PartitionCount);
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ScsiDiskUpdateFixedDiskGeometry(DiskDeviceExtension);
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for (PartitionNumber = 0; PartitionNumber < PartitionList->PartitionCount; PartitionNumber++)
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for (PartitionNumber = 0; PartitionNumber < PartitionList->PartitionCount; PartitionNumber++)
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{
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{
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PartitionEntry = &PartitionList->PartitionEntry[PartitionNumber];
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PartitionEntry = &PartitionList->PartitionEntry[PartitionNumber];
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@ -1086,7 +1091,7 @@ DiskClassShutdownFlush(IN PDEVICE_OBJECT DeviceObject,
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*/
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*/
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static VOID
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static VOID
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DiskClassUpdatePartitionDeviceObjects (IN PDEVICE_OBJECT DiskDeviceObject,
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DiskClassUpdatePartitionDeviceObjects(IN PDEVICE_OBJECT DiskDeviceObject,
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IN PIRP Irp)
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IN PIRP Irp)
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{
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{
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PDRIVE_LAYOUT_INFORMATION PartitionList;
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PDRIVE_LAYOUT_INFORMATION PartitionList;
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@ -1105,6 +1110,8 @@ DiskClassUpdatePartitionDeviceObjects (IN PDEVICE_OBJECT DiskDeviceObject,
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PDEVICE_OBJECT DeviceObject;
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PDEVICE_OBJECT DeviceObject;
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NTSTATUS Status;
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NTSTATUS Status;
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DPRINT("ScsiDiskUpdatePartitionDeviceObjects() called\n");
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/* Get partition list */
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/* Get partition list */
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PartitionList = Irp->AssociatedIrp.SystemBuffer;
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PartitionList = Irp->AssociatedIrp.SystemBuffer;
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@ -1311,6 +1318,117 @@ DiskClassUpdatePartitionDeviceObjects (IN PDEVICE_OBJECT DiskDeviceObject,
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DiskData->PartitionOrdinal,
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DiskData->PartitionOrdinal,
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DiskData->PartitionNumber);
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DiskData->PartitionNumber);
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}
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}
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DPRINT("ScsiDiskUpdatePartitionDeviceObjects() done\n");
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}
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/**********************************************************************
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* NAME INTERNAL
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* DiskClassUpdateFixedDiskGeometry
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*
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* DESCRIPTION
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* Updated the geometry of a disk if the disk can be accessed
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* by the BIOS.
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*
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* RUN LEVEL
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* PASSIVE_LEVEL
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*
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* ARGUMENTS
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* DeviceExtension
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* Disk device extension.
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*
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* RETURN VALUE
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* None
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*/
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static VOID
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ScsiDiskUpdateFixedDiskGeometry(IN PDEVICE_EXTENSION DeviceExtension)
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{
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PCM_FULL_RESOURCE_DESCRIPTOR ResourceDescriptor;
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PCM_INT13_DRIVE_PARAMETER DriveParameters;
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PKEY_VALUE_FULL_INFORMATION ValueBuffer;
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OBJECT_ATTRIBUTES ObjectAttributes;
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UNICODE_STRING KeyName;
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UNICODE_STRING ValueName;
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HANDLE SystemKey;
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ULONG Length;
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ULONG i;
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NTSTATUS Status;
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DPRINT1("ScsiDiskUpdateFixedDiskGeometry() called\n");
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RtlInitUnicodeString(&KeyName,
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L"\\Registry\\Machine\\Hardware\\Description\\System");
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InitializeObjectAttributes(&ObjectAttributes,
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&KeyName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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/* Open the adapter key */
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Status = ZwOpenKey(&SystemKey,
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KEY_READ,
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&ObjectAttributes);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("ZwOpenKey() failed (Status %lx)\n", Status);
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return;
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}
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/* Allocate value buffer */
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ValueBuffer = ExAllocatePool(PagedPool,
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1024);
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if (ValueBuffer == NULL)
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{
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DPRINT1("Failed to allocate value buffer\n");
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ZwClose(SystemKey);
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return;
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}
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RtlInitUnicodeString(&ValueName,
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L"Configuration Data");
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/* Query 'Configuration Data' value */
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Status = ZwQueryValueKey(SystemKey,
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&ValueName,
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KeyValueFullInformation,
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ValueBuffer,
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1024,
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&Length);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("ZwQueryValueKey() failed (Status %lx)\n", Status);
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ExFreePool(ValueBuffer);
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ZwClose(SystemKey);
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return;
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}
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ZwClose(SystemKey);
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ResourceDescriptor = (PCM_FULL_RESOURCE_DESCRIPTOR)
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((PUCHAR)ValueBuffer + ValueBuffer->DataOffset);
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DriveParameters = (PCM_INT13_DRIVE_PARAMETER)
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((PUCHAR)ResourceDescriptor + sizeof(CM_FULL_RESOURCE_DESCRIPTOR));
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for (i = 0; i< DriveParameters[0].NumberDrives; i++)
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{
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DPRINT1("Drive %lu: %lu Cylinders %hu Heads %hu Sectors\n",
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i,
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DriveParameters[i].MaxCylinders,
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DriveParameters[i].MaxHeads,
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DriveParameters[i].SectorsPerTrack);
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}
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DPRINT1("*** System stopped ***\n");
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for(;;);
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ExFreePool(ValueBuffer);
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DPRINT1("ScsiDiskUpdateFixedDiskGeometry() done\n");
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}
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}
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/* EOF */
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/* EOF */
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