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1911 lines
58 KiB
C
1911 lines
58 KiB
C
// Copyright (c) 2004, Antony C. Roberts
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// Use of this file is subject to the terms
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// described in the LICENSE.TXT file that
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// accompanies this file.
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//
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// Your use of this file indicates your
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// acceptance of the terms described in
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// LICENSE.TXT.
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//
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// http://www.freebt.net
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#include "stdio.h"
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#include "fbtusb.h"
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#include "fbtpnp.h"
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#include "fbtpwr.h"
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#include "fbtdev.h"
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#include "fbtrwr.h"
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#include "fbtwmi.h"
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#include "fbtusr.h"
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// Handle PNP events
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NTSTATUS NTAPI FreeBT_DispatchPnP(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
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{
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PIO_STACK_LOCATION irpStack;
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PDEVICE_EXTENSION deviceExtension;
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//KEVENT startDeviceEvent;
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NTSTATUS ntStatus;
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irpStack = IoGetCurrentIrpStackLocation(Irp);
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deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
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// since the device is removed, fail the Irp.
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if (Removed == deviceExtension->DeviceState)
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{
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ntStatus = STATUS_DELETE_PENDING;
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Irp->IoStatus.Status = ntStatus;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return ntStatus;
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}
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FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_DispatchPnP::"));
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FreeBT_IoIncrement(deviceExtension);
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if (irpStack->MinorFunction == IRP_MN_START_DEVICE)
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{
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ASSERT(deviceExtension->IdleReqPend == 0);
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}
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else
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{
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if (deviceExtension->SSEnable)
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{
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CancelSelectSuspend(deviceExtension);
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}
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}
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FreeBT_DbgPrint(3, ("FBTUSB: ///////////////////////////////////////////\n"));
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FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_DispatchPnP::"));
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FreeBT_DbgPrint(2, (PnPMinorFunctionString(irpStack->MinorFunction)));
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switch (irpStack->MinorFunction)
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{
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case IRP_MN_START_DEVICE:
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ntStatus = HandleStartDevice(DeviceObject, Irp);
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break;
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case IRP_MN_QUERY_STOP_DEVICE:
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// if we cannot stop the device, we fail the query stop irp
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ntStatus = CanStopDevice(DeviceObject, Irp);
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if(NT_SUCCESS(ntStatus))
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{
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ntStatus = HandleQueryStopDevice(DeviceObject, Irp);
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return ntStatus;
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}
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break;
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case IRP_MN_CANCEL_STOP_DEVICE:
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ntStatus = HandleCancelStopDevice(DeviceObject, Irp);
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break;
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case IRP_MN_STOP_DEVICE:
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ntStatus = HandleStopDevice(DeviceObject, Irp);
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FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_DispatchPnP::IRP_MN_STOP_DEVICE::"));
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FreeBT_IoDecrement(deviceExtension);
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return ntStatus;
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case IRP_MN_QUERY_REMOVE_DEVICE:
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// if we cannot remove the device, we fail the query remove irp
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ntStatus = HandleQueryRemoveDevice(DeviceObject, Irp);
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return ntStatus;
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case IRP_MN_CANCEL_REMOVE_DEVICE:
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ntStatus = HandleCancelRemoveDevice(DeviceObject, Irp);
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break;
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case IRP_MN_SURPRISE_REMOVAL:
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ntStatus = HandleSurpriseRemoval(DeviceObject, Irp);
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FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_DispatchPnP::IRP_MN_SURPRISE_REMOVAL::"));
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FreeBT_IoDecrement(deviceExtension);
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return ntStatus;
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case IRP_MN_REMOVE_DEVICE:
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ntStatus = HandleRemoveDevice(DeviceObject, Irp);
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return ntStatus;
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case IRP_MN_QUERY_CAPABILITIES:
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ntStatus = HandleQueryCapabilities(DeviceObject, Irp);
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break;
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default:
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IoSkipCurrentIrpStackLocation(Irp);
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ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
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FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_DispatchPnP::default::"));
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FreeBT_IoDecrement(deviceExtension);
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return ntStatus;
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}
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Irp->IoStatus.Status = ntStatus;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_DispatchPnP::"));
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FreeBT_IoDecrement(deviceExtension);
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return ntStatus;
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}
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NTSTATUS NTAPI HandleStartDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
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{
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KIRQL oldIrql;
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KEVENT startDeviceEvent;
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NTSTATUS ntStatus;
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PDEVICE_EXTENSION deviceExtension;
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LARGE_INTEGER dueTime;
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FreeBT_DbgPrint(3, ("FBTUSB: HandleStartDevice: Entered\n"));
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deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
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deviceExtension->UsbConfigurationDescriptor = NULL;
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deviceExtension->UsbInterface = NULL;
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deviceExtension->PipeContext = NULL;
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// We cannot touch the device (send it any non pnp irps) until a
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// start device has been passed down to the lower drivers.
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// first pass the Irp down
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KeInitializeEvent(&startDeviceEvent, NotificationEvent, FALSE);
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IoCopyCurrentIrpStackLocationToNext(Irp);
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IoSetCompletionRoutine(Irp,
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(PIO_COMPLETION_ROUTINE)IrpCompletionRoutine,
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(PVOID)&startDeviceEvent,
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TRUE,
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TRUE,
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TRUE);
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ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
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if (ntStatus == STATUS_PENDING)
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{
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KeWaitForSingleObject(&startDeviceEvent, Executive, KernelMode, FALSE, NULL);
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ntStatus = Irp->IoStatus.Status;
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}
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if (!NT_SUCCESS(ntStatus))
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{
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FreeBT_DbgPrint(1, ("FBTUSB: HandleStartDevice: Lower drivers failed this Irp (0x%08x)\n", ntStatus));
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return ntStatus;
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}
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// Read the device descriptor, configuration descriptor
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// and select the interface descriptors
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ntStatus = ReadandSelectDescriptors(DeviceObject);
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if (!NT_SUCCESS(ntStatus))
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{
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FreeBT_DbgPrint(1, ("FBTUSB: HandleStartDevice: ReadandSelectDescriptors failed (0x%08x)\n", ntStatus));
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return ntStatus;
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}
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// enable the symbolic links for system components to open
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// handles to the device
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ntStatus = IoSetDeviceInterfaceState(&deviceExtension->InterfaceName, TRUE);
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if (!NT_SUCCESS(ntStatus))
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{
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FreeBT_DbgPrint(1, ("FBTUSB: HandleStartDevice: IoSetDeviceInterfaceState failed (0x%08x)\n", ntStatus));
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return ntStatus;
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}
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KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
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SET_NEW_PNP_STATE(deviceExtension, Working);
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deviceExtension->QueueState = AllowRequests;
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KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
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deviceExtension->FlagWWOutstanding = 0;
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deviceExtension->FlagWWCancel = 0;
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deviceExtension->WaitWakeIrp = NULL;
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if (deviceExtension->WaitWakeEnable)
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{
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IssueWaitWake(deviceExtension);
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}
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ProcessQueuedRequests(deviceExtension);
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if (WinXpOrBetter == deviceExtension->WdmVersion)
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{
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deviceExtension->SSEnable = deviceExtension->SSRegistryEnable;
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// set timer.for selective suspend requests
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if (deviceExtension->SSEnable)
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{
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dueTime.QuadPart = -10000 * IDLE_INTERVAL; // 5000 ms
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KeSetTimerEx(&deviceExtension->Timer, dueTime, IDLE_INTERVAL, &deviceExtension->DeferredProcCall);
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deviceExtension->FreeIdleIrpCount = 0;
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}
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}
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FreeBT_DbgPrint(3, ("FBTUSB: HandleStartDevice: Leaving\n"));
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return ntStatus;
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}
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NTSTATUS NTAPI ReadandSelectDescriptors(IN PDEVICE_OBJECT DeviceObject)
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{
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PURB urb;
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ULONG siz;
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NTSTATUS ntStatus;
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PUSB_DEVICE_DESCRIPTOR deviceDescriptor;
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urb = NULL;
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deviceDescriptor = NULL;
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// 1. Read the device descriptor
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urb = (PURB) ExAllocatePool(NonPagedPool, sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST));
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if(urb)
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{
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siz = sizeof(USB_DEVICE_DESCRIPTOR);
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deviceDescriptor = (PUSB_DEVICE_DESCRIPTOR) ExAllocatePool(NonPagedPool, siz);
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if (deviceDescriptor)
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{
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UsbBuildGetDescriptorRequest(
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urb,
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(USHORT) sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST),
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USB_DEVICE_DESCRIPTOR_TYPE,
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0,
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0,
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deviceDescriptor,
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NULL,
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siz,
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NULL);
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ntStatus = CallUSBD(DeviceObject, urb);
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if (NT_SUCCESS(ntStatus))
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{
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ASSERT(deviceDescriptor->bNumConfigurations);
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ntStatus = ConfigureDevice(DeviceObject);
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}
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ExFreePool(urb);
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ExFreePool(deviceDescriptor);
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}
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else
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{
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FreeBT_DbgPrint(1, ("FBTUSB: ReadandSelectDescriptors: Failed to allocate memory for deviceDescriptor"));
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ExFreePool(urb);
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ntStatus = STATUS_INSUFFICIENT_RESOURCES;
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}
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}
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else
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{
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FreeBT_DbgPrint(1, ("FBTUSB: ReadandSelectDescriptors: Failed to allocate memory for urb"));
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ntStatus = STATUS_INSUFFICIENT_RESOURCES;
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}
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return ntStatus;
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}
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NTSTATUS NTAPI ConfigureDevice(IN PDEVICE_OBJECT DeviceObject)
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{
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PURB urb;
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ULONG siz;
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NTSTATUS ntStatus;
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PDEVICE_EXTENSION deviceExtension;
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PUSB_CONFIGURATION_DESCRIPTOR configurationDescriptor;
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urb = NULL;
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configurationDescriptor = NULL;
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deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
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// Read the first configuration descriptor
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// This requires two steps:
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// 1. Read the fixed sized configuration desciptor (CD)
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// 2. Read the CD with all embedded interface and endpoint descriptors
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urb = (PURB) ExAllocatePool(NonPagedPool, sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST));
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if (urb)
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{
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siz = sizeof(USB_CONFIGURATION_DESCRIPTOR);
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configurationDescriptor = (PUSB_CONFIGURATION_DESCRIPTOR) ExAllocatePool(NonPagedPool, siz);
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if(configurationDescriptor)
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{
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UsbBuildGetDescriptorRequest(
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urb,
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(USHORT) sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST),
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USB_CONFIGURATION_DESCRIPTOR_TYPE,
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0,
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0,
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configurationDescriptor,
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NULL,
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sizeof(USB_CONFIGURATION_DESCRIPTOR),
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NULL);
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ntStatus = CallUSBD(DeviceObject, urb);
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if(!NT_SUCCESS(ntStatus))
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{
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FreeBT_DbgPrint(1, ("FBTUSB: ConfigureDevice: UsbBuildGetDescriptorRequest failed\n"));
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goto ConfigureDevice_Exit;
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}
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}
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else
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{
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FreeBT_DbgPrint(1, ("FBTUSB: ConfigureDevice: Failed to allocate mem for config Descriptor\n"));
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ntStatus = STATUS_INSUFFICIENT_RESOURCES;
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goto ConfigureDevice_Exit;
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}
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siz = configurationDescriptor->wTotalLength;
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ExFreePool(configurationDescriptor);
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configurationDescriptor = (PUSB_CONFIGURATION_DESCRIPTOR) ExAllocatePool(NonPagedPool, siz);
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if (configurationDescriptor)
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{
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UsbBuildGetDescriptorRequest(
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urb,
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(USHORT)sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST),
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USB_CONFIGURATION_DESCRIPTOR_TYPE,
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0,
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0,
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configurationDescriptor,
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NULL,
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siz,
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NULL);
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ntStatus = CallUSBD(DeviceObject, urb);
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if (!NT_SUCCESS(ntStatus))
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{
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FreeBT_DbgPrint(1,("FBTUSB: ConfigureDevice: Failed to read configuration descriptor"));
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goto ConfigureDevice_Exit;
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}
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}
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else
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{
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FreeBT_DbgPrint(1, ("FBTUSB: ConfigureDevice: Failed to alloc mem for config Descriptor\n"));
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ntStatus = STATUS_INSUFFICIENT_RESOURCES;
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goto ConfigureDevice_Exit;
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}
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}
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else
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{
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FreeBT_DbgPrint(1, ("FBTUSB: ConfigureDevice: Failed to allocate memory for urb\n"));
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ntStatus = STATUS_INSUFFICIENT_RESOURCES;
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goto ConfigureDevice_Exit;
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}
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if (configurationDescriptor)
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{
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// save a copy of configurationDescriptor in deviceExtension
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// remember to free it later.
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deviceExtension->UsbConfigurationDescriptor = configurationDescriptor;
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if (configurationDescriptor->bmAttributes & REMOTE_WAKEUP_MASK)
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{
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// this configuration supports remote wakeup
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deviceExtension->WaitWakeEnable = 1;
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}
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else
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{
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deviceExtension->WaitWakeEnable = 0;
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}
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ntStatus = SelectInterfaces(DeviceObject, configurationDescriptor);
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}
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else
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{
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deviceExtension->UsbConfigurationDescriptor = NULL;
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}
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ConfigureDevice_Exit:
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if (urb)
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{
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ExFreePool(urb);
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}
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return ntStatus;
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}
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NTSTATUS NTAPI SelectInterfaces(IN PDEVICE_OBJECT DeviceObject, IN PUSB_CONFIGURATION_DESCRIPTOR ConfigurationDescriptor)
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{
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LONG numberOfInterfaces, interfaceNumber, interfaceindex;
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ULONG i;
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PURB urb;
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//PUCHAR pInf;
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NTSTATUS ntStatus;
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PDEVICE_EXTENSION deviceExtension;
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PUSB_INTERFACE_DESCRIPTOR interfaceDescriptor;
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PUSBD_INTERFACE_LIST_ENTRY interfaceList,
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tmp;
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PUSBD_INTERFACE_INFORMATION Interface;
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urb = NULL;
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Interface = NULL;
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interfaceDescriptor = NULL;
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deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
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numberOfInterfaces = ConfigurationDescriptor->bNumInterfaces;
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interfaceindex = interfaceNumber = 0;
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// Parse the configuration descriptor for the interface;
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tmp = interfaceList = (PUSBD_INTERFACE_LIST_ENTRY)
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ExAllocatePool(NonPagedPool, sizeof(USBD_INTERFACE_LIST_ENTRY) * (numberOfInterfaces + 1));
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if (!tmp)
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{
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FreeBT_DbgPrint(1, ("FBTUSB: SelectInterfaces: Failed to allocate mem for interfaceList\n"));
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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FreeBT_DbgPrint(3, ("FBTUSB: -------------\n"));
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FreeBT_DbgPrint(3, ("FBTUSB: Number of interfaces %d\n", numberOfInterfaces));
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while (interfaceNumber < numberOfInterfaces)
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{
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interfaceDescriptor = USBD_ParseConfigurationDescriptorEx(
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ConfigurationDescriptor,
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ConfigurationDescriptor,
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interfaceindex,
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0, -1, -1, -1);
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if (interfaceDescriptor)
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{
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interfaceList->InterfaceDescriptor = interfaceDescriptor;
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interfaceList->Interface = NULL;
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interfaceList++;
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interfaceNumber++;
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}
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interfaceindex++;
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}
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interfaceList->InterfaceDescriptor = NULL;
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interfaceList->Interface = NULL;
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urb = USBD_CreateConfigurationRequestEx(ConfigurationDescriptor, tmp);
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if (urb)
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{
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Interface = &urb->UrbSelectConfiguration.Interface;
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for (i=0; i<Interface->NumberOfPipes; i++)
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{
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// perform pipe initialization here
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// set the transfer size and any pipe flags we use
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// USBD sets the rest of the Interface struct members
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Interface->Pipes[i].MaximumTransferSize = USBD_DEFAULT_MAXIMUM_TRANSFER_SIZE;
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}
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ntStatus = CallUSBD(DeviceObject, urb);
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if (NT_SUCCESS(ntStatus))
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{
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// save a copy of interface information in the device extension.
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deviceExtension->UsbInterface = (PUSBD_INTERFACE_INFORMATION) ExAllocatePool(NonPagedPool, Interface->Length);
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if (deviceExtension->UsbInterface)
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{
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RtlCopyMemory(deviceExtension->UsbInterface, Interface, Interface->Length);
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}
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else
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{
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ntStatus = STATUS_INSUFFICIENT_RESOURCES;
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FreeBT_DbgPrint(1, ("FBTUSB: SelectInterfaces: Memory alloc for UsbInterface failed\n"));
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}
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// Dump the interface to the debugger
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Interface = &urb->UrbSelectConfiguration.Interface;
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FreeBT_DbgPrint(3, ("FBTUSB: ---------\n"));
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FreeBT_DbgPrint(3, ("FBTUSB: NumberOfPipes 0x%x\n", Interface->NumberOfPipes));
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FreeBT_DbgPrint(3, ("FBTUSB: Length 0x%x\n", Interface->Length));
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FreeBT_DbgPrint(3, ("FBTUSB: Alt Setting 0x%x\n", Interface->AlternateSetting));
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FreeBT_DbgPrint(3, ("FBTUSB: Interface Number 0x%x\n", Interface->InterfaceNumber));
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FreeBT_DbgPrint(3, ("FBTUSB: Class, subclass, protocol 0x%x 0x%x 0x%x\n",
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Interface->Class,
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Interface->SubClass,
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Interface->Protocol));
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if (Interface->Class==FREEBT_USB_STDCLASS && Interface->SubClass==FREEBT_USB_STDSUBCLASS &&
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Interface->Protocol==FREEBT_USB_STDPROTOCOL)
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{
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FreeBT_DbgPrint(3, ("FBTUSB: This is a standard USB Bluetooth device\n"));
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}
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else
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{
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FreeBT_DbgPrint(3, ("FBTUSB: WARNING: This device does not report itself as a standard USB Bluetooth device\n"));
|
|
|
|
}
|
|
|
|
// Initialize the PipeContext
|
|
// Dump the pipe info
|
|
deviceExtension->PipeContext = (PFREEBT_PIPE_CONTEXT) ExAllocatePool(
|
|
NonPagedPool,
|
|
Interface->NumberOfPipes *
|
|
sizeof(FREEBT_PIPE_CONTEXT));
|
|
|
|
if (!deviceExtension->PipeContext)
|
|
{
|
|
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
|
|
FreeBT_DbgPrint(1, ("FBTUSB: Memory alloc for UsbInterface failed\n"));
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: SelectInterfaces: Allocated PipeContext %p\n", deviceExtension->PipeContext));
|
|
for (i=0; i<Interface->NumberOfPipes; i++)
|
|
{
|
|
deviceExtension->PipeContext[i].PipeOpen = FALSE;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ---------\n"));
|
|
FreeBT_DbgPrint(3, ("FBTUSB: PipeType 0x%x\n", Interface->Pipes[i].PipeType));
|
|
FreeBT_DbgPrint(3, ("FBTUSB: EndpointAddress 0x%x\n", Interface->Pipes[i].EndpointAddress));
|
|
FreeBT_DbgPrint(3, ("FBTUSB: MaxPacketSize 0x%x\n", Interface->Pipes[i].MaximumPacketSize));
|
|
FreeBT_DbgPrint(3, ("FBTUSB: Interval 0x%x\n", Interface->Pipes[i].Interval));
|
|
FreeBT_DbgPrint(3, ("FBTUSB: Handle 0x%x\n", Interface->Pipes[i].PipeHandle));
|
|
FreeBT_DbgPrint(3, ("FBTUSB: MaximumTransferSize 0x%x\n", Interface->Pipes[i].MaximumTransferSize));
|
|
|
|
// Log the pipes
|
|
// Note the HCI Command endpoint won't appear here, because the Default Control Pipe
|
|
// is used for this. The Default Control Pipe is always present at EndPointAddress 0x0
|
|
switch (Interface->Pipes[i].EndpointAddress)
|
|
{
|
|
case FREEBT_STDENDPOINT_HCIEVENT:
|
|
deviceExtension->PipeContext[i].PipeType=HciEventPipe;
|
|
deviceExtension->EventPipe=Interface->Pipes[i];
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HCI Event Endpoint\n"));
|
|
break;
|
|
|
|
case FREEBT_STDENDPOINT_ACLIN:
|
|
deviceExtension->PipeContext[i].PipeType=AclDataIn;
|
|
deviceExtension->DataInPipe=Interface->Pipes[i];
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ACL Data In Endpoint\n"));
|
|
break;
|
|
|
|
case FREEBT_STDENDPOINT_ACLOUT:
|
|
deviceExtension->PipeContext[i].PipeType=AclDataOut;
|
|
deviceExtension->DataOutPipe=Interface->Pipes[i];
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ACL Data Out Endpoint\n"));
|
|
break;
|
|
|
|
case FREEBT_STDENDPOINT_AUDIOIN:
|
|
deviceExtension->PipeContext[i].PipeType=SCODataIn;
|
|
deviceExtension->AudioInPipe=Interface->Pipes[i];
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ACL Data Out Endpoint\n"));
|
|
break;
|
|
|
|
case FREEBT_STDENDPOINT_AUDIOOUT:
|
|
deviceExtension->PipeContext[i].PipeType=SCODataOut;
|
|
deviceExtension->AudioOutPipe=Interface->Pipes[i];
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ACL Data Out Endpoint\n"));
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ---------\n"));
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(1, ("FBTUSB: SelectInterfaces: Failed to select an interface\n"));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(1, ("FBTUSB: SelectInterfaces: USBD_CreateConfigurationRequestEx failed\n"));
|
|
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
|
|
|
|
}
|
|
|
|
if (tmp)
|
|
{
|
|
ExFreePool(tmp);
|
|
|
|
}
|
|
|
|
if (urb)
|
|
{
|
|
ExFreePool(urb);
|
|
|
|
}
|
|
|
|
return ntStatus;
|
|
}
|
|
|
|
|
|
NTSTATUS NTAPI DeconfigureDevice(IN PDEVICE_OBJECT DeviceObject)
|
|
{
|
|
PURB urb;
|
|
ULONG siz;
|
|
NTSTATUS ntStatus;
|
|
|
|
siz = sizeof(struct _URB_SELECT_CONFIGURATION);
|
|
urb = (PURB) ExAllocatePool(NonPagedPool, siz);
|
|
if (urb)
|
|
{
|
|
UsbBuildSelectConfigurationRequest(urb, (USHORT)siz, NULL);
|
|
ntStatus = CallUSBD(DeviceObject, urb);
|
|
if(!NT_SUCCESS(ntStatus))
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: DeconfigureDevice: Failed to deconfigure device\n"));
|
|
|
|
}
|
|
|
|
ExFreePool(urb);
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(1, ("FBTUSB: DeconfigureDevice: Failed to allocate urb\n"));
|
|
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
|
|
|
|
}
|
|
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI CallUSBD(IN PDEVICE_OBJECT DeviceObject, IN PURB Urb)
|
|
{
|
|
PIRP irp;
|
|
KEVENT event;
|
|
NTSTATUS ntStatus;
|
|
IO_STATUS_BLOCK ioStatus;
|
|
PIO_STACK_LOCATION nextStack;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
|
|
irp = NULL;
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
|
|
KeInitializeEvent(&event, NotificationEvent, FALSE);
|
|
irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_USB_SUBMIT_URB,
|
|
deviceExtension->TopOfStackDeviceObject,
|
|
NULL,
|
|
0,
|
|
NULL,
|
|
0,
|
|
TRUE,
|
|
&event,
|
|
&ioStatus);
|
|
|
|
if (!irp)
|
|
{
|
|
FreeBT_DbgPrint(1, ("FBTUSB: CallUSBD: IoBuildDeviceIoControlRequest failed\n"));
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
|
|
}
|
|
|
|
nextStack = IoGetNextIrpStackLocation(irp);
|
|
ASSERT(nextStack != NULL);
|
|
nextStack->Parameters.Others.Argument1 = Urb;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: CallUSBD::"));
|
|
FreeBT_IoIncrement(deviceExtension);
|
|
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, irp);
|
|
if (ntStatus == STATUS_PENDING)
|
|
{
|
|
KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
|
|
ntStatus = ioStatus.Status;
|
|
|
|
}
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: CallUSBD::"));
|
|
FreeBT_IoDecrement(deviceExtension);
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI HandleQueryStopDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
KIRQL oldIrql;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleQueryStopDevice: Entered\n"));
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
|
|
// If we can stop the device, we need to set the QueueState to
|
|
// HoldRequests so further requests will be queued.
|
|
KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
|
|
|
|
SET_NEW_PNP_STATE(deviceExtension, PendingStop);
|
|
deviceExtension->QueueState = HoldRequests;
|
|
|
|
KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
|
|
|
|
// wait for the existing ones to be finished.
|
|
// first, decrement this operation
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleQueryStopDevice::"));
|
|
FreeBT_IoDecrement(deviceExtension);
|
|
|
|
KeWaitForSingleObject(&deviceExtension->StopEvent, Executive, KernelMode, FALSE, NULL);
|
|
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
IoSkipCurrentIrpStackLocation(Irp);
|
|
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleQueryStopDevice: Leaving\n"));
|
|
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI HandleCancelStopDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
KIRQL oldIrql;
|
|
KEVENT event;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleCancelStopDevice: Entered\n"));
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
|
|
// Send this IRP down and wait for it to come back.
|
|
// Set the QueueState flag to AllowRequests,
|
|
// and process all the previously queued up IRPs.
|
|
|
|
// First check to see whether you have received cancel-stop
|
|
// without first receiving a query-stop. This could happen if someone
|
|
// above us fails a query-stop and passes down the subsequent
|
|
// cancel-stop.
|
|
if(PendingStop == deviceExtension->DeviceState)
|
|
{
|
|
KeInitializeEvent(&event, NotificationEvent, FALSE);
|
|
|
|
IoCopyCurrentIrpStackLocationToNext(Irp);
|
|
IoSetCompletionRoutine(Irp,
|
|
(PIO_COMPLETION_ROUTINE)IrpCompletionRoutine,
|
|
(PVOID)&event,
|
|
TRUE,
|
|
TRUE,
|
|
TRUE);
|
|
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
|
|
if(ntStatus == STATUS_PENDING)
|
|
{
|
|
KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
|
|
ntStatus = Irp->IoStatus.Status;
|
|
|
|
}
|
|
|
|
if(NT_SUCCESS(ntStatus))
|
|
{
|
|
KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
|
|
|
|
RESTORE_PREVIOUS_PNP_STATE(deviceExtension);
|
|
deviceExtension->QueueState = AllowRequests;
|
|
ASSERT(deviceExtension->DeviceState == Working);
|
|
|
|
KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
|
|
|
|
ProcessQueuedRequests(deviceExtension);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
// spurious Irp
|
|
ntStatus = STATUS_SUCCESS;
|
|
|
|
}
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleCancelStopDevice: Leaving\n"));
|
|
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI HandleStopDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
KIRQL oldIrql;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleStopDevice: Entered\n"));
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
if(WinXpOrBetter == deviceExtension->WdmVersion)
|
|
{
|
|
if(deviceExtension->SSEnable)
|
|
{
|
|
// Cancel the timer so that the DPCs are no longer fired.
|
|
// Thus, we are making judicious usage of our resources.
|
|
// we do not need DPCs because the device is stopping.
|
|
// The timers are re-initialized while handling the start
|
|
// device irp.
|
|
KeCancelTimer(&deviceExtension->Timer);
|
|
|
|
// after the device is stopped, it can be surprise removed.
|
|
// we set this to 0, so that we do not attempt to cancel
|
|
// the timer while handling surprise remove or remove irps.
|
|
// when we get the start device request, this flag will be
|
|
// reinitialized.
|
|
deviceExtension->SSEnable = 0;
|
|
|
|
// make sure that if a DPC was fired before we called cancel timer,
|
|
// then the DPC and work-time have run to their completion
|
|
KeWaitForSingleObject(&deviceExtension->NoDpcWorkItemPendingEvent, Executive, KernelMode, FALSE, NULL);
|
|
|
|
// make sure that the selective suspend request has been completed.
|
|
KeWaitForSingleObject(&deviceExtension->NoIdleReqPendEvent, Executive, KernelMode, FALSE, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// after the stop Irp is sent to the lower driver object,
|
|
// the driver must not send any more Irps down that touch
|
|
// the device until another Start has occurred.
|
|
if (deviceExtension->WaitWakeEnable)
|
|
{
|
|
CancelWaitWake(deviceExtension);
|
|
|
|
}
|
|
|
|
KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
|
|
|
|
SET_NEW_PNP_STATE(deviceExtension, Stopped);
|
|
|
|
KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
|
|
|
|
// This is the right place to actually give up all the resources used
|
|
// This might include calls to IoDisconnectInterrupt, MmUnmapIoSpace,
|
|
// etc.
|
|
ReleaseMemory(DeviceObject);
|
|
|
|
ntStatus = DeconfigureDevice(DeviceObject);
|
|
|
|
Irp->IoStatus.Status = ntStatus;
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
IoSkipCurrentIrpStackLocation(Irp);
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleStopDevice: Leaving\n"));
|
|
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI HandleQueryRemoveDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
KIRQL oldIrql;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleQueryRemoveDevice: Entered\n"));
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
|
|
// If we can allow removal of the device, we should set the QueueState
|
|
// to HoldRequests so further requests will be queued. This is required
|
|
// so that we can process queued up requests in cancel-remove just in
|
|
// case somebody else in the stack fails the query-remove.
|
|
ntStatus = CanRemoveDevice(DeviceObject, Irp);
|
|
|
|
KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
|
|
|
|
deviceExtension->QueueState = HoldRequests;
|
|
SET_NEW_PNP_STATE(deviceExtension, PendingRemove);
|
|
|
|
KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleQueryRemoveDevice::"));
|
|
FreeBT_IoDecrement(deviceExtension);
|
|
|
|
// Wait for all the requests to be completed
|
|
KeWaitForSingleObject(&deviceExtension->StopEvent, Executive, KernelMode, FALSE, NULL);
|
|
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
IoSkipCurrentIrpStackLocation(Irp);
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleQueryRemoveDevice: Leaving\n"));
|
|
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI HandleCancelRemoveDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
KIRQL oldIrql;
|
|
KEVENT event;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleCancelRemoveDevice: Entered\n"));
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
|
|
// We need to reset the QueueState flag to ProcessRequest,
|
|
// since the device resume its normal activities.
|
|
|
|
// First check to see whether you have received cancel-remove
|
|
// without first receiving a query-remove. This could happen if
|
|
// someone above us fails a query-remove and passes down the
|
|
// subsequent cancel-remove.
|
|
if(PendingRemove == deviceExtension->DeviceState)
|
|
{
|
|
|
|
KeInitializeEvent(&event, NotificationEvent, FALSE);
|
|
|
|
IoCopyCurrentIrpStackLocationToNext(Irp);
|
|
IoSetCompletionRoutine(Irp,
|
|
(PIO_COMPLETION_ROUTINE)IrpCompletionRoutine,
|
|
(PVOID)&event,
|
|
TRUE,
|
|
TRUE,
|
|
TRUE);
|
|
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
|
|
if(ntStatus == STATUS_PENDING)
|
|
{
|
|
KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
|
|
ntStatus = Irp->IoStatus.Status;
|
|
|
|
}
|
|
|
|
if (NT_SUCCESS(ntStatus))
|
|
{
|
|
KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
|
|
|
|
deviceExtension->QueueState = AllowRequests;
|
|
RESTORE_PREVIOUS_PNP_STATE(deviceExtension);
|
|
|
|
KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
|
|
|
|
// process the queued requests that arrive between
|
|
// QUERY_REMOVE and CANCEL_REMOVE
|
|
ProcessQueuedRequests(deviceExtension);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
// spurious cancel-remove
|
|
ntStatus = STATUS_SUCCESS;
|
|
|
|
}
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleCancelRemoveDevice: Leaving\n"));
|
|
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI HandleSurpriseRemoval(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
KIRQL oldIrql;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleSurpriseRemoval: Entered\n"));
|
|
|
|
// initialize variables
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
|
|
// 1. fail pending requests
|
|
// 2. return device and memory resources
|
|
// 3. disable interfaces
|
|
if(deviceExtension->WaitWakeEnable)
|
|
{
|
|
CancelWaitWake(deviceExtension);
|
|
|
|
}
|
|
|
|
|
|
if (WinXpOrBetter == deviceExtension->WdmVersion)
|
|
{
|
|
if (deviceExtension->SSEnable)
|
|
{
|
|
// Cancel the timer so that the DPCs are no longer fired.
|
|
// we do not need DPCs because the device has been surprise
|
|
// removed
|
|
KeCancelTimer(&deviceExtension->Timer);
|
|
|
|
deviceExtension->SSEnable = 0;
|
|
|
|
// make sure that if a DPC was fired before we called cancel timer,
|
|
// then the DPC and work-time have run to their completion
|
|
KeWaitForSingleObject(&deviceExtension->NoDpcWorkItemPendingEvent, Executive, KernelMode, FALSE, NULL);
|
|
|
|
// make sure that the selective suspend request has been completed.
|
|
KeWaitForSingleObject(&deviceExtension->NoIdleReqPendEvent, Executive, KernelMode, FALSE, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
|
|
deviceExtension->QueueState = FailRequests;
|
|
SET_NEW_PNP_STATE(deviceExtension, SurpriseRemoved);
|
|
KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
|
|
|
|
ProcessQueuedRequests(deviceExtension);
|
|
|
|
ntStatus = IoSetDeviceInterfaceState(&deviceExtension->InterfaceName, FALSE);
|
|
if(!NT_SUCCESS(ntStatus))
|
|
{
|
|
FreeBT_DbgPrint(1, ("FBTUSB: HandleSurpriseRemoval: IoSetDeviceInterfaceState::disable:failed\n"));
|
|
|
|
}
|
|
|
|
FreeBT_AbortPipes(DeviceObject);
|
|
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
IoSkipCurrentIrpStackLocation(Irp);
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleSurpriseRemoval: Leaving\n"));
|
|
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI HandleRemoveDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
KIRQL oldIrql;
|
|
//KEVENT event;
|
|
ULONG requestCount;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleRemoveDevice: Entered\n"));
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
|
|
// The Plug & Play system has dictated the removal of this device. We
|
|
// have no choice but to detach and delete the device object.
|
|
// (If we wanted to express an interest in preventing this removal,
|
|
// we should have failed the query remove IRP).
|
|
if(SurpriseRemoved != deviceExtension->DeviceState)
|
|
{
|
|
|
|
// we are here after QUERY_REMOVE
|
|
KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
|
|
deviceExtension->QueueState = FailRequests;
|
|
KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
|
|
|
|
if(deviceExtension->WaitWakeEnable)
|
|
{
|
|
CancelWaitWake(deviceExtension);
|
|
|
|
}
|
|
|
|
if(WinXpOrBetter == deviceExtension->WdmVersion)
|
|
{
|
|
if (deviceExtension->SSEnable)
|
|
{
|
|
// Cancel the timer so that the DPCs are no longer fired.
|
|
// we do not need DPCs because the device has been removed
|
|
KeCancelTimer(&deviceExtension->Timer);
|
|
|
|
deviceExtension->SSEnable = 0;
|
|
|
|
// make sure that if a DPC was fired before we called cancel timer,
|
|
// then the DPC and work-time have run to their completion
|
|
KeWaitForSingleObject(&deviceExtension->NoDpcWorkItemPendingEvent, Executive, KernelMode, FALSE, NULL);
|
|
|
|
// make sure that the selective suspend request has been completed.
|
|
KeWaitForSingleObject(&deviceExtension->NoIdleReqPendEvent, Executive, KernelMode, FALSE, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
ProcessQueuedRequests(deviceExtension);
|
|
|
|
ntStatus = IoSetDeviceInterfaceState(&deviceExtension->InterfaceName, FALSE);
|
|
if(!NT_SUCCESS(ntStatus))
|
|
{
|
|
FreeBT_DbgPrint(1, ("FBTUSB: HandleRemoveDevice: IoSetDeviceInterfaceState::disable:failed\n"));
|
|
|
|
}
|
|
|
|
FreeBT_AbortPipes(DeviceObject);
|
|
|
|
}
|
|
|
|
KeAcquireSpinLock(&deviceExtension->DevStateLock, &oldIrql);
|
|
SET_NEW_PNP_STATE(deviceExtension, Removed);
|
|
KeReleaseSpinLock(&deviceExtension->DevStateLock, oldIrql);
|
|
#ifdef ENABLE_WMI
|
|
FreeBT_WmiDeRegistration(deviceExtension);
|
|
#endif
|
|
|
|
// Need 2 decrements
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleRemoveDevice::"));
|
|
requestCount = FreeBT_IoDecrement(deviceExtension);
|
|
|
|
ASSERT(requestCount > 0);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleRemoveDevice::"));
|
|
requestCount = FreeBT_IoDecrement(deviceExtension);
|
|
|
|
KeWaitForSingleObject(&deviceExtension->RemoveEvent,
|
|
Executive,
|
|
KernelMode,
|
|
FALSE,
|
|
NULL);
|
|
|
|
ReleaseMemory(DeviceObject);
|
|
|
|
// We need to send the remove down the stack before we detach,
|
|
// but we don't need to wait for the completion of this operation
|
|
// (and to register a completion routine).
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
IoSkipCurrentIrpStackLocation(Irp);
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
|
|
|
|
IoDetachDevice(deviceExtension->TopOfStackDeviceObject);
|
|
IoDeleteDevice(DeviceObject);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleRemoveDevice: Leaving\n"));
|
|
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI HandleQueryCapabilities(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
ULONG i;
|
|
KEVENT event;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
PDEVICE_CAPABILITIES pdc;
|
|
PIO_STACK_LOCATION irpStack;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleQueryCapabilities: Entered\n"));
|
|
|
|
irpStack = IoGetCurrentIrpStackLocation(Irp);
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
pdc = irpStack->Parameters.DeviceCapabilities.Capabilities;
|
|
|
|
if(pdc->Version < 1 || pdc->Size < sizeof(DEVICE_CAPABILITIES))
|
|
{
|
|
|
|
FreeBT_DbgPrint(1, ("FBTUSB: HandleQueryCapabilities::request failed\n"));
|
|
ntStatus = STATUS_UNSUCCESSFUL;
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
// Add in the SurpriseRemovalOK bit before passing it down.
|
|
pdc->SurpriseRemovalOK = TRUE;
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
|
|
KeInitializeEvent(&event, NotificationEvent, FALSE);
|
|
|
|
IoCopyCurrentIrpStackLocationToNext(Irp);
|
|
IoSetCompletionRoutine(Irp,
|
|
(PIO_COMPLETION_ROUTINE)IrpCompletionRoutine,
|
|
(PVOID)&event,
|
|
TRUE,
|
|
TRUE,
|
|
TRUE);
|
|
ntStatus = IoCallDriver(deviceExtension->TopOfStackDeviceObject, Irp);
|
|
if(ntStatus == STATUS_PENDING)
|
|
{
|
|
KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
|
|
ntStatus = Irp->IoStatus.Status;
|
|
|
|
}
|
|
|
|
// initialize PowerDownLevel to disabled
|
|
deviceExtension->PowerDownLevel = PowerDeviceUnspecified;
|
|
if(NT_SUCCESS(ntStatus))
|
|
{
|
|
deviceExtension->DeviceCapabilities = *pdc;
|
|
for(i = PowerSystemSleeping1; i <= PowerSystemSleeping3; i++)
|
|
{
|
|
if(deviceExtension->DeviceCapabilities.DeviceState[i] < PowerDeviceD3)
|
|
{
|
|
deviceExtension->PowerDownLevel = deviceExtension->DeviceCapabilities.DeviceState[i];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// since its safe to surprise-remove this device, we shall
|
|
// set the SurpriseRemoveOK flag to supress any dialog to
|
|
// user.
|
|
pdc->SurpriseRemovalOK = 1;
|
|
|
|
}
|
|
|
|
if(deviceExtension->PowerDownLevel == PowerDeviceUnspecified ||
|
|
deviceExtension->PowerDownLevel <= PowerDeviceD0)
|
|
{
|
|
deviceExtension->PowerDownLevel = PowerDeviceD2;
|
|
|
|
}
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: HandleQueryCapabilities: Leaving\n"));
|
|
|
|
return ntStatus;
|
|
}
|
|
|
|
|
|
VOID NTAPI DpcRoutine(IN PKDPC Dpc, IN PVOID DeferredContext, IN PVOID SystemArgument1, IN PVOID SystemArgument2)
|
|
/*++
|
|
|
|
DPC routine triggered by the timer to check the idle state
|
|
of the device and submit an idle request for the device.
|
|
|
|
--*/
|
|
{
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_OBJECT deviceObject;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
PIO_WORKITEM item;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: DpcRoutine: Entered\n"));
|
|
|
|
deviceObject = (PDEVICE_OBJECT)DeferredContext;
|
|
deviceExtension = (PDEVICE_EXTENSION)deviceObject->DeviceExtension;
|
|
|
|
// Clear this event since a DPC has been fired!
|
|
KeClearEvent(&deviceExtension->NoDpcWorkItemPendingEvent);
|
|
|
|
if(CanDeviceSuspend(deviceExtension))
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: DpcRoutine: Device is Idle\n"));
|
|
item = IoAllocateWorkItem(deviceObject);
|
|
|
|
if (item)
|
|
{
|
|
IoQueueWorkItem(item, IdleRequestWorkerRoutine, DelayedWorkQueue, item);
|
|
ntStatus = STATUS_PENDING;
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: DpcRoutine: Cannot alloc memory for work item\n"));
|
|
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
|
|
KeSetEvent(&deviceExtension->NoDpcWorkItemPendingEvent, IO_NO_INCREMENT, FALSE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: DpcRoutine: Idle event not signaled\n"));
|
|
KeSetEvent(&deviceExtension->NoDpcWorkItemPendingEvent, IO_NO_INCREMENT, FALSE);
|
|
|
|
}
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: DpcRoutine: Leaving\n"));
|
|
}
|
|
|
|
|
|
VOID NTAPI IdleRequestWorkerRoutine(IN PDEVICE_OBJECT DeviceObject, IN PVOID Context)
|
|
{
|
|
//PIRP irp;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
PIO_WORKITEM workItem;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: IdleRequestWorkerRoutine: Entered\n"));
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
workItem = (PIO_WORKITEM) Context;
|
|
|
|
if(CanDeviceSuspend(deviceExtension))
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: IdleRequestWorkerRoutine: Device is idle\n"));
|
|
ntStatus = SubmitIdleRequestIrp(deviceExtension);
|
|
if(!NT_SUCCESS(ntStatus))
|
|
{
|
|
FreeBT_DbgPrint(1, ("FBTUSB: IdleRequestWorkerRoutine: SubmitIdleRequestIrp failed\n"));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: IdleRequestWorkerRoutine: Device is not idle\n"));
|
|
|
|
}
|
|
|
|
IoFreeWorkItem(workItem);
|
|
|
|
KeSetEvent(&deviceExtension->NoDpcWorkItemPendingEvent, IO_NO_INCREMENT, FALSE);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: IdleRequestsWorkerRoutine: Leaving\n"));
|
|
|
|
}
|
|
|
|
|
|
VOID NTAPI ProcessQueuedRequests(IN OUT PDEVICE_EXTENSION DeviceExtension)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Remove and process the entries in the queue. If this routine is called
|
|
when processing IRP_MN_CANCEL_STOP_DEVICE, IRP_MN_CANCEL_REMOVE_DEVICE
|
|
or IRP_MN_START_DEVICE, the requests are passed to the next lower driver.
|
|
If the routine is called when IRP_MN_REMOVE_DEVICE is received, the IRPs
|
|
are complete with STATUS_DELETE_PENDING
|
|
|
|
Arguments:
|
|
|
|
DeviceExtension - pointer to device extension
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
KIRQL oldIrql;
|
|
PIRP nextIrp,
|
|
cancelledIrp;
|
|
PVOID cancelRoutine;
|
|
LIST_ENTRY cancelledIrpList;
|
|
PLIST_ENTRY listEntry;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ProcessQueuedRequests: Entered\n"));
|
|
|
|
cancelRoutine = NULL;
|
|
InitializeListHead(&cancelledIrpList);
|
|
|
|
// 1. dequeue the entries in the queue
|
|
// 2. reset the cancel routine
|
|
// 3. process them
|
|
// 3a. if the device is active, send them down
|
|
// 3b. else complete with STATUS_DELETE_PENDING
|
|
while(1)
|
|
{
|
|
KeAcquireSpinLock(&DeviceExtension->QueueLock, &oldIrql);
|
|
if(IsListEmpty(&DeviceExtension->NewRequestsQueue))
|
|
{
|
|
KeReleaseSpinLock(&DeviceExtension->QueueLock, oldIrql);
|
|
break;
|
|
|
|
}
|
|
|
|
listEntry = RemoveHeadList(&DeviceExtension->NewRequestsQueue);
|
|
nextIrp = CONTAINING_RECORD(listEntry, IRP, Tail.Overlay.ListEntry);
|
|
|
|
cancelRoutine = IoSetCancelRoutine(nextIrp, NULL);
|
|
|
|
// check if its already cancelled
|
|
if (nextIrp->Cancel)
|
|
{
|
|
if(cancelRoutine)
|
|
{
|
|
// the cancel routine for this IRP hasnt been called yet
|
|
// so queue the IRP in the cancelledIrp list and complete
|
|
// after releasing the lock
|
|
InsertTailList(&cancelledIrpList, listEntry);
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
// the cancel routine has run
|
|
// it must be waiting to hold the queue lock
|
|
// so initialize the IRPs listEntry
|
|
InitializeListHead(listEntry);
|
|
|
|
}
|
|
|
|
KeReleaseSpinLock(&DeviceExtension->QueueLock, oldIrql);
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
KeReleaseSpinLock(&DeviceExtension->QueueLock, oldIrql);
|
|
if(FailRequests == DeviceExtension->QueueState)
|
|
{
|
|
nextIrp->IoStatus.Information = 0;
|
|
nextIrp->IoStatus.Status = STATUS_DELETE_PENDING;
|
|
IoCompleteRequest(nextIrp, IO_NO_INCREMENT);
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
//PIO_STACK_LOCATION irpStack;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ProcessQueuedRequests::"));
|
|
FreeBT_IoIncrement(DeviceExtension);
|
|
|
|
IoSkipCurrentIrpStackLocation(nextIrp);
|
|
IoCallDriver(DeviceExtension->TopOfStackDeviceObject, nextIrp);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ProcessQueuedRequests::"));
|
|
FreeBT_IoDecrement(DeviceExtension);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
while(!IsListEmpty(&cancelledIrpList))
|
|
{
|
|
PLIST_ENTRY cancelEntry = RemoveHeadList(&cancelledIrpList);
|
|
|
|
cancelledIrp = CONTAINING_RECORD(cancelEntry, IRP, Tail.Overlay.ListEntry);
|
|
cancelledIrp->IoStatus.Status = STATUS_CANCELLED;
|
|
cancelledIrp->IoStatus.Information = 0;
|
|
|
|
IoCompleteRequest(cancelledIrp, IO_NO_INCREMENT);
|
|
|
|
}
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ProcessQueuedRequests: Leaving\n"));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI FreeBT_GetRegistryDword(IN PWCHAR RegPath, IN PWCHAR ValueName, IN OUT PULONG Value)
|
|
{
|
|
ULONG defaultData;
|
|
WCHAR buffer[MAXIMUM_FILENAME_LENGTH];
|
|
NTSTATUS ntStatus;
|
|
UNICODE_STRING regPath;
|
|
RTL_QUERY_REGISTRY_TABLE paramTable[2];
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_GetRegistryDword: Entered\n"));
|
|
|
|
regPath.Length = 0;
|
|
regPath.MaximumLength = MAXIMUM_FILENAME_LENGTH * sizeof(WCHAR);
|
|
regPath.Buffer = buffer;
|
|
|
|
RtlZeroMemory(regPath.Buffer, regPath.MaximumLength);
|
|
RtlMoveMemory(regPath.Buffer, RegPath, wcslen(RegPath) * sizeof(WCHAR));
|
|
RtlZeroMemory(paramTable, sizeof(paramTable));
|
|
|
|
paramTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
|
|
paramTable[0].Name = ValueName;
|
|
paramTable[0].EntryContext = Value;
|
|
paramTable[0].DefaultType = REG_DWORD;
|
|
paramTable[0].DefaultData = &defaultData;
|
|
paramTable[0].DefaultLength = sizeof(ULONG);
|
|
|
|
ntStatus = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE |
|
|
RTL_REGISTRY_OPTIONAL,
|
|
regPath.Buffer,
|
|
paramTable,
|
|
NULL,
|
|
NULL);
|
|
|
|
if (NT_SUCCESS(ntStatus))
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_GetRegistryDword: Success, Value = %X\n", *Value));
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_GetRegistryDword: Failed\n"));
|
|
*Value = 0;
|
|
return STATUS_UNSUCCESSFUL;
|
|
|
|
}
|
|
}
|
|
|
|
|
|
NTSTATUS NTAPI FreeBT_DispatchClean(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
KIRQL oldIrql;
|
|
LIST_ENTRY cleanupList;
|
|
PLIST_ENTRY thisEntry,
|
|
nextEntry,
|
|
listHead;
|
|
PIRP pendingIrp;
|
|
PIO_STACK_LOCATION pendingIrpStack,
|
|
irpStack;
|
|
//NTSTATUS ntStatus;
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
irpStack = IoGetCurrentIrpStackLocation(Irp);
|
|
InitializeListHead(&cleanupList);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_DispatchClean::"));
|
|
FreeBT_IoIncrement(deviceExtension);
|
|
|
|
KeAcquireSpinLock(&deviceExtension->QueueLock, &oldIrql);
|
|
|
|
listHead = &deviceExtension->NewRequestsQueue;
|
|
for(thisEntry = listHead->Flink, nextEntry = thisEntry->Flink;
|
|
thisEntry != listHead;
|
|
thisEntry = nextEntry, nextEntry = thisEntry->Flink)
|
|
{
|
|
pendingIrp = CONTAINING_RECORD(thisEntry, IRP, Tail.Overlay.ListEntry);
|
|
pendingIrpStack = IoGetCurrentIrpStackLocation(pendingIrp);
|
|
if (irpStack->FileObject == pendingIrpStack->FileObject)
|
|
{
|
|
RemoveEntryList(thisEntry);
|
|
|
|
if (NULL == IoSetCancelRoutine(pendingIrp, NULL))
|
|
{
|
|
InitializeListHead(thisEntry);
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
InsertTailList(&cleanupList, thisEntry);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
KeReleaseSpinLock(&deviceExtension->QueueLock, oldIrql);
|
|
|
|
while(!IsListEmpty(&cleanupList))
|
|
{
|
|
thisEntry = RemoveHeadList(&cleanupList);
|
|
pendingIrp = CONTAINING_RECORD(thisEntry, IRP, Tail.Overlay.ListEntry);
|
|
|
|
pendingIrp->IoStatus.Information = 0;
|
|
pendingIrp->IoStatus.Status = STATUS_CANCELLED;
|
|
IoCompleteRequest(pendingIrp, IO_NO_INCREMENT);
|
|
|
|
}
|
|
|
|
Irp->IoStatus.Information = 0;
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_DispatchClean::"));
|
|
FreeBT_IoDecrement(deviceExtension);
|
|
|
|
return STATUS_SUCCESS;
|
|
|
|
}
|
|
|
|
|
|
BOOLEAN NTAPI CanDeviceSuspend(IN PDEVICE_EXTENSION DeviceExtension)
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: CanDeviceSuspend: Entered\n"));
|
|
|
|
if ((DeviceExtension->OpenHandleCount == 0) && (DeviceExtension->OutStandingIO == 1))
|
|
return TRUE;
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI FreeBT_AbortPipes(IN PDEVICE_OBJECT DeviceObject)
|
|
{
|
|
PURB urb;
|
|
ULONG i;
|
|
NTSTATUS ntStatus;
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
PFREEBT_PIPE_CONTEXT pipeContext;
|
|
//PUSBD_PIPE_INFORMATION pipeInformation;
|
|
PUSBD_INTERFACE_INFORMATION interfaceInfo;
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
pipeContext = deviceExtension->PipeContext;
|
|
interfaceInfo = deviceExtension->UsbInterface;
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_AbortPipes: Entered\n"));
|
|
|
|
if(interfaceInfo == NULL || pipeContext == NULL)
|
|
return STATUS_SUCCESS;
|
|
|
|
for(i=0; i<interfaceInfo->NumberOfPipes; i++)
|
|
{
|
|
if(pipeContext[i].PipeOpen)
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_AbortPipes: Aborting open pipe %d\n", i));
|
|
|
|
urb = (PURB) ExAllocatePool(NonPagedPool, sizeof(struct _URB_PIPE_REQUEST));
|
|
if (urb)
|
|
{
|
|
urb->UrbHeader.Length = sizeof(struct _URB_PIPE_REQUEST);
|
|
urb->UrbHeader.Function = URB_FUNCTION_ABORT_PIPE;
|
|
urb->UrbPipeRequest.PipeHandle = interfaceInfo->Pipes[i].PipeHandle;
|
|
|
|
ntStatus = CallUSBD(DeviceObject, urb);
|
|
|
|
ExFreePool(urb);
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
FreeBT_DbgPrint(1, ("FBTUSB: FreeBT_AbortPipes: Failed to alloc memory for urb\n"));
|
|
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
|
|
return ntStatus;
|
|
|
|
}
|
|
|
|
if(NT_SUCCESS(ntStatus))
|
|
pipeContext[i].PipeOpen = FALSE;
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: FreeBT_AbortPipes: Leaving\n"));
|
|
|
|
return STATUS_SUCCESS;
|
|
|
|
}
|
|
|
|
// Completion routine for PNP IRPs
|
|
NTSTATUS NTAPI IrpCompletionRoutine(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID Context)
|
|
{
|
|
PKEVENT event = (PKEVENT) Context;
|
|
KeSetEvent(event, 0, FALSE);
|
|
|
|
return STATUS_MORE_PROCESSING_REQUIRED;
|
|
|
|
}
|
|
|
|
|
|
LONG NTAPI FreeBT_IoIncrement(IN OUT PDEVICE_EXTENSION DeviceExtension)
|
|
{
|
|
LONG result = 0;
|
|
KIRQL oldIrql;
|
|
|
|
KeAcquireSpinLock(&DeviceExtension->IOCountLock, &oldIrql);
|
|
result = InterlockedIncrement((PLONG)(&DeviceExtension->OutStandingIO));
|
|
|
|
// When OutStandingIO bumps from 1 to 2, clear the StopEvent
|
|
if (result == 2)
|
|
KeClearEvent(&DeviceExtension->StopEvent);
|
|
|
|
KeReleaseSpinLock(&DeviceExtension->IOCountLock, oldIrql);
|
|
|
|
FreeBT_DbgPrint(3, ("FreeBT_IoIncrement::%d\n", result));
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
LONG NTAPI FreeBT_IoDecrement(IN OUT PDEVICE_EXTENSION DeviceExtension)
|
|
{
|
|
LONG result = 0;
|
|
KIRQL oldIrql;
|
|
|
|
KeAcquireSpinLock(&DeviceExtension->IOCountLock, &oldIrql);
|
|
|
|
result = InterlockedDecrement((PLONG)(&DeviceExtension->OutStandingIO));
|
|
|
|
if (result == 1)
|
|
KeSetEvent(&DeviceExtension->StopEvent, IO_NO_INCREMENT, FALSE);
|
|
|
|
if(result == 0)
|
|
{
|
|
ASSERT(Removed == DeviceExtension->DeviceState);
|
|
KeSetEvent(&DeviceExtension->RemoveEvent, IO_NO_INCREMENT, FALSE);
|
|
|
|
}
|
|
|
|
KeReleaseSpinLock(&DeviceExtension->IOCountLock, oldIrql);
|
|
|
|
FreeBT_DbgPrint(3, ("FreeBT_IoDecrement::%d\n", result));
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI CanStopDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
{
|
|
// For the time being, just allow it to be stopped
|
|
UNREFERENCED_PARAMETER(DeviceObject);
|
|
UNREFERENCED_PARAMETER(Irp);
|
|
|
|
return STATUS_SUCCESS;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI CanRemoveDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
|
|
|
|
{
|
|
// For the time being, just allow it to be removed
|
|
UNREFERENCED_PARAMETER(DeviceObject);
|
|
UNREFERENCED_PARAMETER(Irp);
|
|
|
|
return STATUS_SUCCESS;
|
|
|
|
}
|
|
|
|
NTSTATUS NTAPI ReleaseMemory(IN PDEVICE_OBJECT DeviceObject)
|
|
{
|
|
// Disconnect from the interrupt and unmap any I/O ports
|
|
PDEVICE_EXTENSION deviceExtension;
|
|
UNICODE_STRING uniDeviceName;
|
|
NTSTATUS ntStatus;
|
|
|
|
deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
|
|
if (deviceExtension->UsbConfigurationDescriptor)
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ReleaseMemory: Freeing UsbConfigurationDescriptor\n"));
|
|
ExFreePool(deviceExtension->UsbConfigurationDescriptor);
|
|
deviceExtension->UsbConfigurationDescriptor = NULL;
|
|
|
|
}
|
|
|
|
if(deviceExtension->UsbInterface)
|
|
{
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ReleaseMemory: Freeing UsbInterface\n"));
|
|
ExFreePool(deviceExtension->UsbInterface);
|
|
deviceExtension->UsbInterface = NULL;
|
|
|
|
}
|
|
|
|
if(deviceExtension->PipeContext)
|
|
{
|
|
RtlInitUnicodeString(&uniDeviceName, deviceExtension->wszDosDeviceName);
|
|
ntStatus = IoDeleteSymbolicLink(&uniDeviceName);
|
|
if (!NT_SUCCESS(ntStatus))
|
|
FreeBT_DbgPrint(3, ("FBTUSB: Failed to delete symbolic link %ws\n", deviceExtension->wszDosDeviceName));
|
|
|
|
FreeBT_DbgPrint(3, ("FBTUSB: ReleaseMemory: Freeing PipeContext %p\n", deviceExtension->PipeContext));
|
|
ExFreePool(deviceExtension->PipeContext);
|
|
deviceExtension->PipeContext = NULL;
|
|
|
|
}
|
|
|
|
return STATUS_SUCCESS;
|
|
|
|
}
|
|
|
|
PCHAR NTAPI PnPMinorFunctionString (UCHAR MinorFunction)
|
|
{
|
|
switch (MinorFunction)
|
|
{
|
|
case IRP_MN_START_DEVICE:
|
|
return "IRP_MN_START_DEVICE\n";
|
|
|
|
case IRP_MN_QUERY_REMOVE_DEVICE:
|
|
return "IRP_MN_QUERY_REMOVE_DEVICE\n";
|
|
|
|
case IRP_MN_REMOVE_DEVICE:
|
|
return "IRP_MN_REMOVE_DEVICE\n";
|
|
|
|
case IRP_MN_CANCEL_REMOVE_DEVICE:
|
|
return "IRP_MN_CANCEL_REMOVE_DEVICE\n";
|
|
|
|
case IRP_MN_STOP_DEVICE:
|
|
return "IRP_MN_STOP_DEVICE\n";
|
|
|
|
case IRP_MN_QUERY_STOP_DEVICE:
|
|
return "IRP_MN_QUERY_STOP_DEVICE\n";
|
|
|
|
case IRP_MN_CANCEL_STOP_DEVICE:
|
|
return "IRP_MN_CANCEL_STOP_DEVICE\n";
|
|
|
|
case IRP_MN_QUERY_DEVICE_RELATIONS:
|
|
return "IRP_MN_QUERY_DEVICE_RELATIONS\n";
|
|
|
|
case IRP_MN_QUERY_INTERFACE:
|
|
return "IRP_MN_QUERY_INTERFACE\n";
|
|
|
|
case IRP_MN_QUERY_CAPABILITIES:
|
|
return "IRP_MN_QUERY_CAPABILITIES\n";
|
|
|
|
case IRP_MN_QUERY_RESOURCES:
|
|
return "IRP_MN_QUERY_RESOURCES\n";
|
|
|
|
case IRP_MN_QUERY_RESOURCE_REQUIREMENTS:
|
|
return "IRP_MN_QUERY_RESOURCE_REQUIREMENTS\n";
|
|
|
|
case IRP_MN_QUERY_DEVICE_TEXT:
|
|
return "IRP_MN_QUERY_DEVICE_TEXT\n";
|
|
|
|
case IRP_MN_FILTER_RESOURCE_REQUIREMENTS:
|
|
return "IRP_MN_FILTER_RESOURCE_REQUIREMENTS\n";
|
|
|
|
case IRP_MN_READ_CONFIG:
|
|
return "IRP_MN_READ_CONFIG\n";
|
|
|
|
case IRP_MN_WRITE_CONFIG:
|
|
return "IRP_MN_WRITE_CONFIG\n";
|
|
|
|
case IRP_MN_EJECT:
|
|
return "IRP_MN_EJECT\n";
|
|
|
|
case IRP_MN_SET_LOCK:
|
|
return "IRP_MN_SET_LOCK\n";
|
|
|
|
case IRP_MN_QUERY_ID:
|
|
return "IRP_MN_QUERY_ID\n";
|
|
|
|
case IRP_MN_QUERY_PNP_DEVICE_STATE:
|
|
return "IRP_MN_QUERY_PNP_DEVICE_STATE\n";
|
|
|
|
case IRP_MN_QUERY_BUS_INFORMATION:
|
|
return "IRP_MN_QUERY_BUS_INFORMATION\n";
|
|
|
|
case IRP_MN_DEVICE_USAGE_NOTIFICATION:
|
|
return "IRP_MN_DEVICE_USAGE_NOTIFICATION\n";
|
|
|
|
case IRP_MN_SURPRISE_REMOVAL:
|
|
return "IRP_MN_SURPRISE_REMOVAL\n";
|
|
|
|
default:
|
|
return "IRP_MN_?????\n";
|
|
|
|
}
|
|
|
|
}
|
|
|