mirror of
https://github.com/reactos/reactos.git
synced 2025-08-03 21:45:41 +00:00
- Move IopInitialize/StartDevice to PnP Manager
- I/O Packet APIs fixes Part 1: - Clear the current IRP before parsing the Device Queues - Respect Cancelable parameter in IoStartNextPacket(ByKey) instead of ignoring it (acquire the cancel lock when it's requested) - Raise IRQL to DISPATCH_LEVEL in IoStartPacket instead of expecting the caller to do it and crashing. Also only use Cancel Lock if a Cancel Function was specified. - Actually handle the case where the IRP Was cancelled right after insert and the Cancel Routine has to be called. svn path=/trunk/; revision=22744
This commit is contained in:
Alex Ionescu
parent
036139907e
commit
51989fa847
2 changed files with 226 additions and 206 deletions
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@ -82,111 +82,6 @@ IoShutdownRegisteredDevices(VOID)
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}
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}
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}
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}
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NTSTATUS
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FASTCALL
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IopInitializeDevice(PDEVICE_NODE DeviceNode,
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PDRIVER_OBJECT DriverObject)
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{
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PDEVICE_OBJECT Fdo;
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NTSTATUS Status;
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BOOLEAN IsPnpDriver = FALSE;
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if (DriverObject->DriverExtension->AddDevice)
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{
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/* This is a Plug and Play driver */
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DPRINT("Plug and Play driver found\n");
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ASSERT(DeviceNode->PhysicalDeviceObject);
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DPRINT("Calling driver AddDevice entrypoint at %08lx\n",
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DriverObject->DriverExtension->AddDevice);
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IsPnpDriver = !IopDeviceNodeHasFlag(DeviceNode, DNF_LEGACY_DRIVER);
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Status = DriverObject->DriverExtension->AddDevice(
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DriverObject, IsPnpDriver ? DeviceNode->PhysicalDeviceObject : NULL);
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if (!NT_SUCCESS(Status))
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{
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return Status;
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}
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if (IsPnpDriver)
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{
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Fdo = IoGetAttachedDeviceReference(DeviceNode->PhysicalDeviceObject);
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if (Fdo == DeviceNode->PhysicalDeviceObject)
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{
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/* FIXME: What do we do? Unload the driver or just disable the device? */
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DbgPrint("An FDO was not attached\n");
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IopDeviceNodeSetFlag(DeviceNode, DNF_DISABLED);
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return STATUS_UNSUCCESSFUL;
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}
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if (Fdo->DeviceType == FILE_DEVICE_ACPI)
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{
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static BOOLEAN SystemPowerDeviceNodeCreated = FALSE;
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/* There can be only one system power device */
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if (!SystemPowerDeviceNodeCreated)
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{
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PopSystemPowerDeviceNode = DeviceNode;
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SystemPowerDeviceNodeCreated = TRUE;
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}
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}
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ObDereferenceObject(Fdo);
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}
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IopDeviceNodeSetFlag(DeviceNode, DNF_ADDED);
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IopDeviceNodeSetFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY);
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}
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return STATUS_SUCCESS;
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}
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NTSTATUS
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IopStartDevice(
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PDEVICE_NODE DeviceNode)
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{
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IO_STATUS_BLOCK IoStatusBlock;
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IO_STACK_LOCATION Stack;
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PDEVICE_OBJECT Fdo;
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NTSTATUS Status;
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DPRINT("Sending IRP_MN_START_DEVICE to driver\n");
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Fdo = IoGetAttachedDeviceReference(DeviceNode->PhysicalDeviceObject);
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Stack.Parameters.StartDevice.AllocatedResources = DeviceNode->ResourceList;
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Stack.Parameters.StartDevice.AllocatedResourcesTranslated = DeviceNode->ResourceListTranslated;
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Status = IopInitiatePnpIrp(
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Fdo,
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&IoStatusBlock,
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IRP_MN_START_DEVICE,
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&Stack);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("IopInitiatePnpIrp() failed\n");
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}
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else
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{
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if (IopDeviceNodeHasFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY))
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{
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DPRINT("Device needs enumeration, invalidating bus relations\n");
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Status = IopInvalidateDeviceRelations(DeviceNode, BusRelations);
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IopDeviceNodeClearFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY);
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}
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}
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ObDereferenceObject(Fdo);
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if (NT_SUCCESS(Status))
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DeviceNode->Flags |= DN_STARTED;
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return Status;
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}
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NTSTATUS
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NTSTATUS
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NTAPI
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NTAPI
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IopGetDeviceObjectPointer(IN PUNICODE_STRING ObjectName,
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IopGetDeviceObjectPointer(IN PUNICODE_STRING ObjectName,
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@ -1247,137 +1142,157 @@ IoSetStartIoAttributes(IN PDEVICE_OBJECT DeviceObject,
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/*
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/*
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* @implemented
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* @implemented
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*
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* FUNCTION: Dequeues the next packet from the given device object's
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* associated device queue according to a specified sort-key value and calls
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* the drivers StartIo routine with that IRP
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* ARGUMENTS:
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* DeviceObject = Device object for which the irp is to dequeued
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* Cancelable = True if IRPs in the key can be canceled
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* Key = Sort key specifing which entry to remove from the queue
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*/
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*/
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VOID
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VOID
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STDCALL
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NTAPI
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IoStartNextPacketByKey(PDEVICE_OBJECT DeviceObject,
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IoStartNextPacketByKey(IN PDEVICE_OBJECT DeviceObject,
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BOOLEAN Cancelable,
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IN BOOLEAN Cancelable,
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ULONG Key)
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IN ULONG Key)
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{
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{
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PKDEVICE_QUEUE_ENTRY entry;
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PKDEVICE_QUEUE_ENTRY Entry;
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PIRP Irp;
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PIRP Irp;
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KIRQL OldIrql;
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entry = KeRemoveByKeyDeviceQueue(&DeviceObject->DeviceQueue,
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/* Acquire the cancel lock if this is cancelable */
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Key);
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if (Cancelable) IoAcquireCancelSpinLock(&OldIrql);
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if (entry != NULL)
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/* Clear the current IRP */
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{
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DeviceObject->CurrentIrp = NULL;
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Irp = CONTAINING_RECORD(entry,
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IRP,
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/* Remove an entry from the queue */
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Tail.Overlay.DeviceQueueEntry);
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Entry = KeRemoveByKeyDeviceQueue(&DeviceObject->DeviceQueue, Key);
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if (Entry)
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{
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/* Get the IRP and set it */
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Irp = CONTAINING_RECORD(Entry, IRP, Tail.Overlay.DeviceQueueEntry);
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DeviceObject->CurrentIrp = Irp;
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DeviceObject->CurrentIrp = Irp;
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DPRINT("Next irp is 0x%p\n", Irp);
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DeviceObject->DriverObject->DriverStartIo(DeviceObject, Irp);
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/* Release the cancel lock if we had acquired it */
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}
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if (Cancelable) IoReleaseCancelSpinLock(OldIrql);
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else
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{
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/* Call the Start I/O Routine */
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DPRINT("No next irp\n");
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DeviceObject->DriverObject->DriverStartIo(DeviceObject, Irp);
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DeviceObject->CurrentIrp = NULL;
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}
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}
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else
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{
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/* Otherwise, release the cancel lock if we had acquired it */
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if (Cancelable) IoReleaseCancelSpinLock(OldIrql);
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}
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}
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}
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/*
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/*
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* @implemented
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* @implemented
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*
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* FUNCTION: Removes the next packet from the device's queue and calls
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* the driver's StartIO
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* ARGUMENTS:
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* DeviceObject = Device
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* Cancelable = True if irps in the queue can be canceled
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*/
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*/
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VOID
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VOID
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STDCALL
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NTAPI
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IoStartNextPacket(PDEVICE_OBJECT DeviceObject,
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IoStartNextPacket(IN PDEVICE_OBJECT DeviceObject,
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BOOLEAN Cancelable)
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IN BOOLEAN Cancelable)
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{
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{
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PKDEVICE_QUEUE_ENTRY entry;
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PKDEVICE_QUEUE_ENTRY Entry;
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PIRP Irp;
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PIRP Irp;
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KIRQL OldIrql;
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DPRINT("IoStartNextPacket(DeviceObject 0x%p, Cancelable %d)\n",
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/* Acquire the cancel lock if this is cancelable */
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DeviceObject, Cancelable);
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if (Cancelable) IoAcquireCancelSpinLock(&OldIrql);
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entry = KeRemoveDeviceQueue(&DeviceObject->DeviceQueue);
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/* Clear the current IRP */
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DeviceObject->CurrentIrp = NULL;
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if (entry!=NULL)
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/* Remove an entry from the queue */
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{
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Entry = KeRemoveDeviceQueue(&DeviceObject->DeviceQueue);
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Irp = CONTAINING_RECORD(entry,IRP,Tail.Overlay.DeviceQueueEntry);
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if (Entry)
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{
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/* Get the IRP and set it */
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Irp = CONTAINING_RECORD(Entry, IRP, Tail.Overlay.DeviceQueueEntry);
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DeviceObject->CurrentIrp = Irp;
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DeviceObject->CurrentIrp = Irp;
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DeviceObject->DriverObject->DriverStartIo(DeviceObject,Irp);
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}
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/* Call the Start I/O Routine */
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else
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DeviceObject->DriverObject->DriverStartIo(DeviceObject, Irp);
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{
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}
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DeviceObject->CurrentIrp = NULL;
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else
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}
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{
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/* Otherwise, release the cancel lock if we had acquired it */
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if (Cancelable) IoReleaseCancelSpinLock(OldIrql);
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}
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}
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}
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/*
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/*
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* @implemented
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* @implemented
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*
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* FUNCTION: Either call the device's StartIO routine with the packet or,
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* if the device is busy, queue it.
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* ARGUMENTS:
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* DeviceObject = Device to start the packet on
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* Irp = Irp to queue
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* Key = Where to insert the irp
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* If zero then insert in the tail of the queue
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* CancelFunction = Optional function to cancel the irqp
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*/
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*/
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VOID
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VOID
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STDCALL
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NTAPI
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IoStartPacket(PDEVICE_OBJECT DeviceObject,
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IoStartPacket(IN PDEVICE_OBJECT DeviceObject,
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PIRP Irp,
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IN PIRP Irp,
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PULONG Key,
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IN PULONG Key,
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PDRIVER_CANCEL CancelFunction)
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IN PDRIVER_CANCEL CancelFunction)
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{
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{
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BOOLEAN stat;
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BOOLEAN Stat;
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KIRQL oldirql;
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KIRQL OldIrql, CancelIrql;
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DPRINT("IoStartPacket(Irp 0x%p)\n", Irp);
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/* Raise to dispatch level */
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KeRaiseIrql(DISPATCH_LEVEL, &OldIrql);
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ASSERT_IRQL(DISPATCH_LEVEL);
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/* Check if we should acquire the cancel lock */
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if (CancelFunction)
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{
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/* Acquire and set it */
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IoAcquireCancelSpinLock(&CancelIrql);
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Irp->CancelRoutine = CancelFunction;
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}
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IoAcquireCancelSpinLock(&oldirql);
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/* Check if we have a key */
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if (Key)
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{
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/* Insert by key */
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Stat = KeInsertByKeyDeviceQueue(&DeviceObject->DeviceQueue,
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&Irp->Tail.Overlay.DeviceQueueEntry,
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*Key);
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}
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else
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{
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/* Insert without a key */
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Stat = KeInsertDeviceQueue(&DeviceObject->DeviceQueue,
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&Irp->Tail.Overlay.DeviceQueueEntry);
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}
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if (CancelFunction != NULL)
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/* Check if this was a first insert */
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{
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if (!Stat)
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Irp->CancelRoutine = CancelFunction;
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{
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}
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/* Set the IRP */
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if (Key!=0)
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{
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stat = KeInsertByKeyDeviceQueue(&DeviceObject->DeviceQueue,
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&Irp->Tail.Overlay.DeviceQueueEntry,
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*Key);
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}
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else
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{
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stat = KeInsertDeviceQueue(&DeviceObject->DeviceQueue,
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&Irp->Tail.Overlay.DeviceQueueEntry);
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}
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if (!stat)
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{
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IoReleaseCancelSpinLock(DISPATCH_LEVEL);
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DeviceObject->CurrentIrp = Irp;
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DeviceObject->CurrentIrp = Irp;
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DeviceObject->DriverObject->DriverStartIo(DeviceObject,Irp);
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if (oldirql < DISPATCH_LEVEL)
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/* Release the cancel lock if we had a cancel function */
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{
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if (CancelFunction) IoReleaseCancelSpinLock(CancelIrql);
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KeLowerIrql(oldirql);
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/* Call the Start I/O function */
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DeviceObject->DriverObject->DriverStartIo(DeviceObject, Irp);
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}
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else
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{
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/* The packet was inserted... check if we have a cancel function */
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if (CancelFunction)
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{
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/* Check if the IRP got cancelled */
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if (Irp->Cancel)
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{
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/*
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* Set the cancel IRQL, clear the currnet cancel routine and
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* call ours
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*/
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Irp->CancelIrql = CancelIrql;
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Irp->CancelRoutine = NULL;
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CancelFunction(DeviceObject, Irp);
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}
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else
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{
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/* Otherwise, release the lock */
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IoReleaseCancelSpinLock(CancelIrql);
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}
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}
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}
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}
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}
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else
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{
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/* Return back to previous IRQL */
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IoReleaseCancelSpinLock(oldirql);
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KeLowerIrql(OldIrql);
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}
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}
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}
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/* EOF */
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/* EOF */
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@ -44,6 +44,111 @@ IopGetDeviceNode(PDEVICE_OBJECT DeviceObject)
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return ((PEXTENDED_DEVOBJ_EXTENSION)DeviceObject->DeviceObjectExtension)->DeviceNode;
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return ((PEXTENDED_DEVOBJ_EXTENSION)DeviceObject->DeviceObjectExtension)->DeviceNode;
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}
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}
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NTSTATUS
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FASTCALL
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IopInitializeDevice(PDEVICE_NODE DeviceNode,
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PDRIVER_OBJECT DriverObject)
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{
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PDEVICE_OBJECT Fdo;
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NTSTATUS Status;
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BOOLEAN IsPnpDriver = FALSE;
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if (DriverObject->DriverExtension->AddDevice)
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{
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/* This is a Plug and Play driver */
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DPRINT("Plug and Play driver found\n");
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ASSERT(DeviceNode->PhysicalDeviceObject);
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DPRINT("Calling driver AddDevice entrypoint at %08lx\n",
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DriverObject->DriverExtension->AddDevice);
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IsPnpDriver = !IopDeviceNodeHasFlag(DeviceNode, DNF_LEGACY_DRIVER);
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Status = DriverObject->DriverExtension->AddDevice(
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DriverObject, IsPnpDriver ? DeviceNode->PhysicalDeviceObject : NULL);
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if (!NT_SUCCESS(Status))
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{
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return Status;
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}
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if (IsPnpDriver)
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{
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Fdo = IoGetAttachedDeviceReference(DeviceNode->PhysicalDeviceObject);
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if (Fdo == DeviceNode->PhysicalDeviceObject)
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{
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/* FIXME: What do we do? Unload the driver or just disable the device? */
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DbgPrint("An FDO was not attached\n");
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IopDeviceNodeSetFlag(DeviceNode, DNF_DISABLED);
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return STATUS_UNSUCCESSFUL;
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}
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if (Fdo->DeviceType == FILE_DEVICE_ACPI)
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{
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static BOOLEAN SystemPowerDeviceNodeCreated = FALSE;
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/* There can be only one system power device */
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if (!SystemPowerDeviceNodeCreated)
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{
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PopSystemPowerDeviceNode = DeviceNode;
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SystemPowerDeviceNodeCreated = TRUE;
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}
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}
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ObDereferenceObject(Fdo);
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}
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IopDeviceNodeSetFlag(DeviceNode, DNF_ADDED);
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IopDeviceNodeSetFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY);
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}
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||||||
|
|
||||||
|
return STATUS_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
NTSTATUS
|
||||||
|
IopStartDevice(
|
||||||
|
PDEVICE_NODE DeviceNode)
|
||||||
|
{
|
||||||
|
IO_STATUS_BLOCK IoStatusBlock;
|
||||||
|
IO_STACK_LOCATION Stack;
|
||||||
|
PDEVICE_OBJECT Fdo;
|
||||||
|
NTSTATUS Status;
|
||||||
|
|
||||||
|
DPRINT("Sending IRP_MN_START_DEVICE to driver\n");
|
||||||
|
|
||||||
|
Fdo = IoGetAttachedDeviceReference(DeviceNode->PhysicalDeviceObject);
|
||||||
|
Stack.Parameters.StartDevice.AllocatedResources = DeviceNode->ResourceList;
|
||||||
|
Stack.Parameters.StartDevice.AllocatedResourcesTranslated = DeviceNode->ResourceListTranslated;
|
||||||
|
|
||||||
|
Status = IopInitiatePnpIrp(
|
||||||
|
Fdo,
|
||||||
|
&IoStatusBlock,
|
||||||
|
IRP_MN_START_DEVICE,
|
||||||
|
&Stack);
|
||||||
|
|
||||||
|
if (!NT_SUCCESS(Status))
|
||||||
|
{
|
||||||
|
DPRINT("IopInitiatePnpIrp() failed\n");
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
if (IopDeviceNodeHasFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY))
|
||||||
|
{
|
||||||
|
DPRINT("Device needs enumeration, invalidating bus relations\n");
|
||||||
|
Status = IopInvalidateDeviceRelations(DeviceNode, BusRelations);
|
||||||
|
IopDeviceNodeClearFlag(DeviceNode, DNF_NEED_ENUMERATION_ONLY);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ObDereferenceObject(Fdo);
|
||||||
|
|
||||||
|
if (NT_SUCCESS(Status))
|
||||||
|
DeviceNode->Flags |= DN_STARTED;
|
||||||
|
|
||||||
|
return Status;
|
||||||
|
}
|
||||||
|
|
||||||
NTSTATUS
|
NTSTATUS
|
||||||
STDCALL
|
STDCALL
|
||||||
IopQueryDeviceCapabilities(PDEVICE_NODE DeviceNode,
|
IopQueryDeviceCapabilities(PDEVICE_NODE DeviceNode,
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue