_Use_decl_annotations_
VOID
ToastMon_EvtDeviceContextCleanup(
WDFOBJECT Device
)
/*++
Routine Description:
EvtDeviceContextCleanup event callback must perform any operations that are
necessary before the specified device is removed. The framework calls
the driver's EvtDeviceRemove callback when the PnP manager sends
an IRP_MN_REMOVE_DEVICE request to the driver stack. Function driver
typically undo whatever they did in EvtDeviceAdd callback - free
structures, cleanup collections, etc.
Arguments:
Device - Handle to a framework device object.
Return Value:
VOID
--*/
{
PDEVICE_EXTENSION deviceExtension;
KdPrint( ("ToastMon_EvtDeviceContextCleanup\n"));
PAGED_CODE();
deviceExtension = GetDeviceExtension((WDFDEVICE)Device);
//
// Unregister the interface notification
//
if(deviceExtension->NotificationHandle) {
IoUnregisterPlugPlayNotification(deviceExtension->NotificationHandle);
}
//
// TargetDeviceCollection will get deleted automatically when
// the Device is deleted due to the association we made when
// we created the object in EvtDeviceAdd.
//
// Any targets remaining in the collection will also be automaticaly closed
// and deleted.
//
deviceExtension->TargetDeviceCollection = NULL;
UnregisterForWMINotification(deviceExtension);
return;
}
/*++
Routine Description:
EvtDeviceReleaseHardware for Vchiq.
Arguments:
Device - A handle to a framework device object.
ResourcesTranslated - A handle to a resource list object that identifies
the translated hardware resources that the Plug and Play manager has
assigned to the device.
Return Value:
NTSTATUS value
--*/
_Use_decl_annotations_
NTSTATUS VchiqReleaseHardware (
WDFDEVICE Device,
WDFCMRESLIST ResourcesTranslated
)
{
NTSTATUS status;
DEVICE_CONTEXT* deviceContextPtr;
UNREFERENCED_PARAMETER(ResourcesTranslated);
PAGED_CODE();
deviceContextPtr = VchiqGetDeviceContext(Device);
if (deviceContextPtr->VchiqRegisterPtr != NULL) {
MmUnmapIoSpace(deviceContextPtr->VchiqRegisterPtr,
deviceContextPtr->VchiqRegisterLength);
deviceContextPtr->VchiqRegisterPtr = NULL;
}
status = VchiqRelease(deviceContextPtr);
if (!NT_SUCCESS(status)) {
VCHIQ_LOG_ERROR("Fail to release VCHIQ resource %!STATUS!", status);
}
if (deviceContextPtr->RpiqNotificationHandle != NULL) {
status = IoUnregisterPlugPlayNotification(
deviceContextPtr->RpiqNotificationHandle);
if (!NT_SUCCESS(status)) {
VCHIQ_LOG_ERROR(
"Rpiq interface notification deregistration fails %!STATUS!",
status);
}
deviceContextPtr->RpiqNotificationHandle = NULL;
}
NT_ASSERT(deviceContextPtr->AllocPhyMemCount == 0);
return STATUS_SUCCESS;
}
static
VOID
Test_IoRegisterPlugPlayNotification(VOID)
{
NTSTATUS Status;
PVOID NotificationEntry;
Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
(PVOID)&GUID_DEVICE_SYS_BUTTON,
KmtDriverObject,
NotificationCallback,
&NotificationContext,
&NotificationEntry);
ok_eq_hex(Status, STATUS_SUCCESS);
if (!skip(NT_SUCCESS(Status), "PlugPlayNotification not registered\n"))
{
Status = IoUnregisterPlugPlayNotification(NotificationEntry);
ok_eq_hex(Status, STATUS_SUCCESS);
}
}
NTSTATUS
NTAPI
WdmAudClose(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
/* nothing to do complete request */
#if KS_IMPLEMENTED
Status = KsDereferenceSoftwareBusObject(DeviceExtension->DeviceHeader);
if (NT_SUCCESS(Status))
{
if (DeviceExtension->SysAudioNotification)
Status = IoUnregisterPlugPlayNotification(DeviceExtension->SysAudioNotification);
}
#endif
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
/* done */
return STATUS_SUCCESS;
}
