/*
* ReactOS kernel
- * Copyright (C) 2001, 2002, 2003 ReactOS Team
+ * Copyright (C) 2001, 2002, 2003, 2004 ReactOS Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-/* $Id: disk.c,v 1.34 2004/01/09 20:21:31 gvg Exp $
+/* $Id$
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: services/storage/disk/disk.c
* PURPOSE: disk class driver
- * PROGRAMMER: Eric Kohl (ekohl@rz-online.de)
+ * PROGRAMMER: Eric Kohl
*/
/* INCLUDES *****************************************************************/
BOOLEAN DriveNotReady;
} DISK_DATA, *PDISK_DATA;
-
BOOLEAN STDCALL
DiskClassFindDevices(PDRIVER_OBJECT DriverObject,
PUNICODE_STRING RegistryPath,
DiskClassCheckReadWrite(IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp);
+static VOID
+DiskClassCreateMediaChangeEvent(IN PDEVICE_EXTENSION DeviceExtension,
+ IN ULONG DeviceNumber);
static NTSTATUS
DiskClassCreateDeviceObject(IN PDRIVER_OBJECT DriverObject,
OUT PULONG Checksum);
+static NTSTATUS
+DiskBuildPartitionTable(IN PDEVICE_OBJECT DiskDeviceObject,
+ IN PIRP Irp);
+
+
/* FUNCTIONS ****************************************************************/
/**********************************************************************
PCHAR Buffer;
ULONG Bus;
ULONG DeviceCount;
- BOOLEAN FoundDevice;
+ BOOLEAN FoundDevice = FALSE;
NTSTATUS Status;
DPRINT("DiskClassFindDevices() called.\n");
}
+static VOID
+DiskClassCreateMediaChangeEvent(IN PDEVICE_EXTENSION DeviceExtension,
+ IN ULONG DeviceNumber)
+{
+ WCHAR NameBuffer[MAX_PATH];
+ UNICODE_STRING Name;
+
+ swprintf (NameBuffer,
+ L"\\Device\\MediaChangeEvent%lu",
+ DeviceNumber);
+ RtlInitUnicodeString (&Name,
+ NameBuffer);
+
+ DeviceExtension->MediaChangeEvent =
+ IoCreateSynchronizationEvent (&Name,
+ &DeviceExtension->MediaChangeEventHandle);
+
+ KeClearEvent (DeviceExtension->MediaChangeEvent);
+}
+
+
+
/**********************************************************************
* NAME EXPORTED
* DiskClassCheckDevice
{
PDEVICE_EXTENSION DeviceExtension;
PDISK_DATA DiskData;
+ PIO_STACK_LOCATION IrpStack;
+ ULARGE_INTEGER EndingOffset;
DPRINT("DiskClassCheckReadWrite() called\n");
return(STATUS_INVALID_PARAMETER);
}
+
+
+ IrpStack = IoGetCurrentIrpStackLocation(Irp);
+ EndingOffset.QuadPart = IrpStack->Parameters.Read.ByteOffset.QuadPart +
+ IrpStack->Parameters.Read.Length;
+
+
+ DPRINT("Ending %I64d, and RealEnding %I64d! PartSize %I64d\n",EndingOffset.QuadPart,
+ DeviceExtension->PartitionLength.QuadPart,
+ DeviceExtension->PartitionLength.QuadPart /
+ DeviceExtension->DiskGeometry->BytesPerSector);
+
+ if ((DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) &&
+ (DeviceExtension->DiskGeometry->MediaType == RemovableMedia))
+ {
+/* Assume if removable media and if Partition length is 0, Partition not built yet! */
+ if (DeviceExtension->PartitionLength.QuadPart == 0)
+ return(STATUS_SUCCESS);
+ }
+
+ if (EndingOffset.QuadPart > DeviceExtension->PartitionLength.QuadPart)
+ {
+ Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
+ return(STATUS_INVALID_PARAMETER);
+ }
+
return(STATUS_SUCCESS);
}
DiskDeviceExtension->PathId = InquiryData->PathId;
DiskDeviceExtension->TargetId = InquiryData->TargetId;
DiskDeviceExtension->Lun = InquiryData->Lun;
+ DiskDeviceExtension->SrbFlags = 0;
+
+ /* Enable the command queueing, if it possible */
+ if (Capabilities->TaggedQueuing &&
+ ((PINQUIRYDATA)InquiryData->InquiryData)->CommandQueue)
+ {
+ DiskDeviceExtension->SrbFlags |= SRB_FLAGS_QUEUE_ACTION_ENABLE;
+ }
/* Get timeout value */
DiskDeviceExtension->TimeOutValue =
}
/* Allocate sense data buffer */
- DiskDeviceExtension->SenseData = ExAllocatePool(NonPagedPool,
- sizeof(SENSE_BUFFER_SIZE));
+ DiskDeviceExtension->SenseData = ExAllocatePool(NonPagedPoolCacheAligned,
+ SENSE_BUFFER_SIZE);
if (DiskDeviceExtension->SenseData == NULL)
{
DPRINT("Failed to allocate sense data buffer!\n");
if (!NT_SUCCESS(Status) &&
(DiskDeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) == 0)
{
- DPRINT1("Failed to retrieve drive capacity!\n");
+ DPRINT("Failed to retrieve drive capacity!\n");
return(STATUS_SUCCESS);
}
else
DPRINT("SectorSize: %lu\n", DiskDeviceExtension->DiskGeometry->BytesPerSector);
+ if ((DiskDeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) &&
+ (DiskDeviceExtension->DiskGeometry->MediaType == RemovableMedia))
+ {
+ DiskClassCreateMediaChangeEvent(DiskDeviceExtension,DiskNumber);
+ if (DiskDeviceExtension->MediaChangeEvent != NULL)
+ {
+ DPRINT("Allocated media change event!\n");
+ }
+ }
+
/* Check disk for presence of a disk manager */
HalExamineMBR(DiskDeviceObject,
DiskDeviceExtension->DiskGeometry->BytesPerSector,
PartitionEntry->PartitionNumber,
PartitionEntry->BootIndicator,
PartitionEntry->PartitionType,
- PartitionEntry->StartingOffset.QuadPart / 512 /*DrvParms.BytesPerSector*/,
- PartitionEntry->PartitionLength.QuadPart / 512 /* DrvParms.BytesPerSector*/);
+ PartitionEntry->StartingOffset.QuadPart /
+ DiskDeviceExtension->DiskGeometry->BytesPerSector,
+ PartitionEntry->PartitionLength.QuadPart /
+ DiskDeviceExtension->DiskGeometry->BytesPerSector);
/* Create partition device object */
sprintf(NameBuffer2,
Status = ScsiClassCreateDeviceObject(DriverObject,
NameBuffer2,
DiskDeviceObject,
- &PartitionDeviceObject,
+ &PartitionDeviceObject ,
InitializationData);
DPRINT("ScsiClassCreateDeviceObject(): Status %x\n", Status);
if (NT_SUCCESS(Status))
}
else
{
- DPRINT1("ScsiClassCreateDeviceObject() failed to create partition device object (Status %x)\n", Status);
+ DPRINT("ScsiClassCreateDeviceObject() failed to create partition device object (Status %x)\n", Status);
break;
}
}
+static NTSTATUS
+DiskBuildPartitionTable(IN PDEVICE_OBJECT DiskDeviceObject,
+ IN PIRP Irp)
+{
+ PDRIVE_LAYOUT_INFORMATION PartitionList = NULL;
+ PDEVICE_EXTENSION DiskDeviceExtension, DDE;
+ PDISK_DATA DiskData, DD;
+ PPARTITION_INFORMATION PartitionEntry;
+ ULONG PartitionNumber;
+ NTSTATUS Status;
+
+ DPRINT("DiskBuildPartitionTable() start\n");
+
+ DiskDeviceExtension = (PDEVICE_EXTENSION)DiskDeviceObject->DeviceExtension;
+ DiskData = (PDISK_DATA)(DiskDeviceExtension + 1);
+
+ DDE = (PDEVICE_EXTENSION) DiskDeviceExtension->PhysicalDevice->DeviceExtension;
+ DD = (PDISK_DATA)(DDE +1);
+
+ /* Clear flag for Partition0, just incase it was set. */
+ DD->DriveNotReady = FALSE;
+
+ Status = ScsiClassReadDriveCapacity(DiskDeviceObject);
+ if (!NT_SUCCESS(Status))
+ {
+ /* Drive is not ready. */
+ DPRINT("Drive not ready\n");
+ DiskData->DriveNotReady = TRUE;
+ return Status;
+ }
+
+ /* Read partition table */
+ Status = IoReadPartitionTable(DiskDeviceExtension->PhysicalDevice,
+ DiskDeviceExtension->DiskGeometry->BytesPerSector,
+ TRUE,
+ &PartitionList);
+
+ DPRINT("IoReadPartitionTable(): Status: %lx\n", Status);
+
+ if (!NT_SUCCESS(Status))
+ {
+ /* Drive is not ready. */
+ DPRINT("Drive not ready\n");
+ DiskData->DriveNotReady = TRUE;
+ if (PartitionList != NULL)
+ ExFreePool(PartitionList);
+ return Status;
+ }
+
+ if (NT_SUCCESS(Status))
+ {
+ DPRINT("Read partition table!\n");
+ DPRINT(" Number of partitions: %u\n", PartitionList->PartitionCount);
+
+ /* Set disk signature */
+ DiskData->Signature = PartitionList->Signature;
+
+ DiskData->NextPartition = NULL;
+
+ if (PartitionList->PartitionCount)
+ {
+ for (PartitionNumber = 0; PartitionNumber < PartitionList->PartitionCount; PartitionNumber++)
+ {
+ PartitionEntry = &PartitionList->PartitionEntry[PartitionNumber];
+
+ DiskData->PartitionType = PartitionEntry->PartitionType;
+ DiskData->PartitionNumber = PartitionNumber + 1;
+ DiskData->PartitionOrdinal = PartitionNumber + 1;
+ DiskData->HiddenSectors = PartitionEntry->HiddenSectors;
+ DiskData->BootIndicator = PartitionEntry->BootIndicator;
+ DiskData->DriveNotReady = FALSE;
+ DiskDeviceExtension->StartingOffset = PartitionEntry->StartingOffset;
+ DiskDeviceExtension->PartitionLength = PartitionEntry->PartitionLength;
+
+ DPRINT1("Partition %02ld: nr: %d boot: %1x type: %x offset: %I64d size: %I64d\n",
+ PartitionNumber,
+ DiskData->PartitionNumber,
+ DiskData->BootIndicator,
+ DiskData->PartitionType,
+ DiskDeviceExtension->StartingOffset.QuadPart /
+ DiskDeviceExtension->DiskGeometry->BytesPerSector,
+ DiskDeviceExtension->PartitionLength.QuadPart /
+ DiskDeviceExtension->DiskGeometry->BytesPerSector);
+ }
+ }
+ else
+ {
+ DiskData->PartitionType = 0;
+ DiskData->PartitionNumber = 1;
+ DiskData->PartitionOrdinal = 0;
+ DiskData->HiddenSectors = 0;
+ DiskData->BootIndicator = 0;
+ DiskData->DriveNotReady = FALSE;
+ DiskDeviceExtension->StartingOffset.QuadPart = 0;
+ DiskDeviceExtension->PartitionLength.QuadPart += DiskDeviceExtension->StartingOffset.QuadPart;
+ }
+ }
+
+ DPRINT("DiskBuildPartitionTable() done\n");
+ if (PartitionList != NULL)
+ ExFreePool(PartitionList);
+ return(STATUS_SUCCESS);
+}
+
+
/**********************************************************************
* NAME EXPORTED
* DiskClassDeviceControl
NTSTATUS STDCALL
DiskClassDeviceControl(IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
-{
+{
PDEVICE_EXTENSION DeviceExtension;
PIO_STACK_LOCATION IrpStack;
ULONG ControlCode, InputLength, OutputLength;
if (!NT_SUCCESS(Status))
{
/* Drive is not ready */
- DiskData->DriveNotReady = FALSE;
+ DiskData->DriveNotReady = TRUE;
break;
}
case IOCTL_DISK_GET_PARTITION_INFO:
DPRINT("IOCTL_DISK_GET_PARTITION_INFO\n");
+
+ if ((DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) &&
+ (DeviceExtension->DiskGeometry->MediaType == RemovableMedia))
+ {
+ /* Update a partition list for a single entry. */
+ Status = DiskBuildPartitionTable(DeviceObject,Irp);
+ }
+
if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(PARTITION_INFORMATION))
{
Status = STATUS_INVALID_DEVICE_REQUEST;
}
else
- {
+ {
PPARTITION_INFORMATION PartitionInfo;
PartitionInfo = (PPARTITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
case IOCTL_DISK_REQUEST_STRUCTURE:
case IOCTL_DISK_REQUEST_DATA:
/* If we get here, something went wrong. Inform the requestor */
- DPRINT1("Unhandled control code: %lx\n", ControlCode);
+ DPRINT("Unhandled control code: %lx\n", ControlCode);
Status = STATUS_INVALID_DEVICE_REQUEST;
Information = 0;
break;
DeviceExtension->PartitionLength.QuadPart))
continue;
- DPRINT1("Found matching partition entry for partition %lu\n",
+ DPRINT("Found matching partition entry for partition %lu\n",
DiskData->PartitionNumber);
/* Found matching partition */
&DeviceObject);
if (!NT_SUCCESS(Status))
{
- DPRINT1("IoCreateDevice() failed (Status %lx)\n", Status);
+ DPRINT("IoCreateDevice() failed (Status %lx)\n", Status);
continue;
}
1024);
if (ValueBuffer == NULL)
{
- DPRINT1("Failed to allocate value buffer\n");
+ DPRINT("Failed to allocate value buffer\n");
ZwClose(SystemKey);
return;
}
#if 0
for (i = 0; i< DriveParameters[0].NumberDrives; i++)
{
- DPRINT1("Drive %lu: %lu Cylinders %hu Heads %hu Sectors\n",
+ DPRINT("Drive %lu: %lu Cylinders %hu Heads %hu Sectors\n",
i,
DriveParameters[i].MaxCylinders,
DriveParameters[i].MaxHeads,
Length = TracksPerCylinder * SectorsPerTrack;
if (Length == 0)
{
- DPRINT1("Invalid track length 0\n");
+ DPRINT("Invalid track length 0\n");
ExFreePool(ValueBuffer);
return;
}
if (DeviceExtension->DMActive)
{
- DPRINT1("FIXME: Update geometry with respect to the installed disk manager!\n");
+ DPRINT("FIXME: Update geometry with respect to the installed disk manager!\n");
/* FIXME: Update geometry for disk managers */
projects / reactos.git / blobdiff