[WDF] Add Windows Driver Framework files

Takern from Microsoft GitHub repo:
d9c6040fe9

Licensed under MIT

sdk/lib/drivers/wdf/shared/inc/private/common/fxdrivercallbacks.hpp

@@ -0,0 +1,107 @@
+/*++
+
+Copyright (c) Microsoft Corporation
+
+Module Name:
+
+    FxDriverCallbacks.h
+
+Abstract:
+
+    This module implements the FxDriver object callbacks
+
+Author:
+
+
+
+
+Environment:
+
+    Both kernel and user mode
+
+Revision History:
+
+--*/
+
+#ifndef _FXDRIVERCALLBACKS_H_
+#define _FXDRIVERCALLBACKS_H_
+
+//
+// These delegates are in a seperate file
+//
+
+//
+// DrvDeviceInitialize callback delegate
+//
+class FxDriverDeviceAdd : public FxLockedCallback {
+
+public:
+    PFN_WDF_DRIVER_DEVICE_ADD Method;
+
+    FxDriverDeviceAdd(
+        VOID
+        ) :
+        FxLockedCallback()
+    {
+        Method = NULL;
+    }
+
+    _Must_inspect_result_
+    NTSTATUS
+    Invoke(
+        __in WDFDRIVER  Driver,
+        __in PWDFDEVICE_INIT DeviceInit
+        )
+    {
+        if (Method != NULL) {
+            NTSTATUS status;
+            KIRQL irql = 0;
+
+            CallbackStart(&irql);
+            status = Method(Driver, DeviceInit);
+            CallbackEnd(irql);
+
+            return status;
+        }
+        else {
+            return STATUS_UNSUCCESSFUL;
+        }
+    }
+};
+
+//
+// DrvUnload callback delegate
+//
+class FxDriverUnload : public FxCallback {
+
+public:
+
+    PFN_WDF_DRIVER_UNLOAD Method;
+
+    FxDriverUnload(
+        VOID
+        ) :
+        FxCallback()
+    {
+        Method = NULL;
+    }
+
+    void
+    Invoke(
+        __in WDFDRIVER Driver
+        )
+    {
+        if (Method != NULL) {
+
+            CallbackStart();
+            Method(Driver);
+            CallbackEnd();
+            return;
+        }
+        else {
+            return;
+        }
+    }
+};
+
+#endif // _FXDRIVERCALLBACKS_H_