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76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
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* PROJECT: ReactOS FAT file system driver
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* LICENSE: GNU GPLv3 as published by the Free Software Foundation
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* FILE: drivers/filesystems/fastfat/device.c
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* PURPOSE: Device control
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* PROGRAMMERS: Aleksey Bragin (aleksey@reactos.org)
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*/
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/* INCLUDES *****************************************************************/
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#define NDEBUG
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#include "fastfat.h"
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/* FUNCTIONS ****************************************************************/
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NTSTATUS
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NTAPI
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FatDeviceControl(PDEVICE_OBJECT DeviceObject, PIRP Irp)
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{
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DPRINT1("FatDeviceControl()\n");
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return STATUS_NOT_IMPLEMENTED;
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}
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NTSTATUS
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FatPerformDevIoCtrl(PDEVICE_OBJECT DeviceObject,
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ULONG ControlCode,
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PVOID InputBuffer,
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ULONG InputBufferSize,
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PVOID OutputBuffer,
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ULONG OutputBufferSize,
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BOOLEAN Override)
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{
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PIRP Irp;
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KEVENT Event;
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NTSTATUS Status;
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PIO_STACK_LOCATION Stack;
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IO_STATUS_BLOCK IoStatus;
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/* Initialize the event for waiting */
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KeInitializeEvent(&Event, NotificationEvent, FALSE);
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/* Build the device I/O control request */
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Irp = IoBuildDeviceIoControlRequest(ControlCode,
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DeviceObject,
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InputBuffer,
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InputBufferSize,
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OutputBuffer,
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OutputBufferSize,
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FALSE,
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&Event,
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&IoStatus);
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/* Fail if IRP hasn't been allocated */
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if (!Irp) return STATUS_INSUFFICIENT_RESOURCES;
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/* Set verify override flag if requested */
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if (Override)
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{
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Stack = IoGetNextIrpStackLocation(Irp);
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Stack->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
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}
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/* Call the driver */
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Status = IoCallDriver(DeviceObject, Irp);
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/* Wait if needed */
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if (Status == STATUS_PENDING)
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{
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KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
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Status = IoStatus.Status;
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}
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return Status;
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}
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/* EOF */
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