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Implemented RamdrvDispatchDeviceControl for IOCTL_DISK_GET_DRIVE_GEOMETRY.

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svn path=/trunk/; revision=2735
This commit is contained in:
Hartmut Birr 2002-03-17 22:31:11 +00:00
parent 933c073785
commit aac1177de4
1 changed files with 44 additions and 2 deletions
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46
reactos/drivers/dd/ramdrv/ramdrv.c
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@ -3,6 +3,47 @@
#include <debug.h>
#include "../../../lib/bzip2/bzlib.h"
NTSTATUS STDCALL RamdrvDispatchDeviceControl(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PIO_STACK_LOCATION IrpStack;
ULONG ControlCode, InputLength, OutputLength;
NTSTATUS Status;
DPRINT("RamdrvDispatchDeviceControl\n");
IrpStack = IoGetCurrentIrpStackLocation(Irp);
ControlCode = IrpStack->Parameters.DeviceIoControl.IoControlCode;
InputLength = IrpStack->Parameters.DeviceIoControl.InputBufferLength;
OutputLength = IrpStack->Parameters.DeviceIoControl.OutputBufferLength;
switch (ControlCode)
{
case IOCTL_DISK_GET_DRIVE_GEOMETRY:
if (OutputLength < sizeof(DISK_GEOMETRY))
{
Status = STATUS_INVALID_PARAMETER;
}
else
{
PDISK_GEOMETRY Geometry = Irp->AssociatedIrp.SystemBuffer;
Geometry->MediaType = F3_1Pt44_512;
Geometry->Cylinders.QuadPart = 80;
Geometry->TracksPerCylinder = 2 * 18;
Geometry->SectorsPerTrack = 18;
Geometry->BytesPerSector = 512;
Status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof(DISK_GEOMETRY);
}
break;
default:
Status = STATUS_INVALID_DEVICE_REQUEST;
}
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, NT_SUCCESS(Status) ? IO_DISK_INCREMENT : IO_NO_INCREMENT);
return Status;
}
NTSTATUS STDCALL RamdrvDispatchReadWrite(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
@ -64,8 +105,7 @@ NTSTATUS STDCALL DriverEntry(IN PDRIVER_OBJECT DriverObject,
DriverObject->MajorFunction[IRP_MJ_CLOSE] = RamdrvDispatchOpenClose;
DriverObject->MajorFunction[IRP_MJ_READ] = RamdrvDispatchReadWrite;
DriverObject->MajorFunction[IRP_MJ_WRITE] = RamdrvDispatchReadWrite;
// DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] =
// RamdrvDispatchDeviceControl;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = RamdrvDispatchDeviceControl;
// create device and symbolic link
@ -176,7 +216,9 @@ NTSTATUS STDCALL DriverEntry(IN PDRIVER_OBJECT DriverObject,
1,
0 );
if( err == 0 )
{
DPRINT( "RAMDRV: Image Decompressed\n");
}
else DbgPrint( "RAMDRV: Failed to decomparess image, error: %d\n", err );
ExFreePool( tbuff );
NtClose( file );