1 files changed, 163 insertions, 0 deletions
diff --git a/gnss/gnssUmdf/Device.cpp b/gnss/gnssUmdf/Device.cpp
new file mode 100644
index 00000000..905b3e94
--- /dev/null
+++ b/gnss/gnssUmdf/Device.cpp
@@ -0,0 +1,163 @@
+/*++
+
+Copyright (c) Microsoft Corporation.  All rights reserved.
+
+Module Name:
+
+    device.c
+
+Abstract:
+
+   This file contains the device entry points and callbacks.
+    
+Environment:
+
+    Windows User-Mode Driver Framework
+
+--*/
+
+#include "precomp.h"
+#include "Trace.h"
+#include "Defaults.h"
+#include "Device.h"
+#include "FixSession.h"
+#include "FixHandler.h"
+#include "Queue.h"
+
+#include "Device.tmh"
+
+
+CDevice::CDevice(
+    _In_ WDFDEVICE Device
+) :
+    _Device(Device),
+    _Queue(nullptr)
+{
+}
+
+CDevice::~CDevice()
+{
+    if (_Queue != nullptr)
+    {
+        _Queue = nullptr;
+    }
+}
+
+CQueue*
+CDevice::GetQueue()
+{
+    return _Queue;
+}
+
+NTSTATUS
+CDevice::OnDeviceAdd(
+    _In_ WDFDRIVER /*Driver*/,
+    _Inout_ PWDFDEVICE_INIT DeviceInit
+)
+{
+    NTSTATUS status = STATUS_SUCCESS;
+
+    WDF_PNPPOWER_EVENT_CALLBACKS powerCallbacks;
+    WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&powerCallbacks);
+
+    powerCallbacks.EvtDeviceD0Entry = CDevice::OnD0Entry;
+    powerCallbacks.EvtDeviceD0Exit = CDevice::OnD0Exit;
+
+    WdfDeviceInitSetPnpPowerEventCallbacks(DeviceInit, &powerCallbacks);
+
+    WDF_OBJECT_ATTRIBUTES deviceAttributes;
+    WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&deviceAttributes,
+                                            CDevice);
+        
+    deviceAttributes.EvtCleanupCallback = CDevice::OnCleanup;
+    deviceAttributes.SynchronizationScope = WdfSynchronizationScopeNone;
+    deviceAttributes.ExecutionLevel = WdfExecutionLevelPassive;
+
+    WDFDEVICE device;
+    status = WdfDeviceCreate(&DeviceInit, &deviceAttributes, &device);
+
+    if (!NT_SUCCESS(status))
+    {
+        TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_DEVICE, "WdfDeviceCreate failed with Status %!STATUS!", status);
+        goto Exit;
+    }
+
+    // Construct device object on the preallocated buffer using placement 'new'
+    CDevice* pDevice = new (GetDeviceObject(device)) CDevice(device);
+
+    status = pDevice->Initialize();
+
+Exit:
+    return status;
+}
+
+NTSTATUS
+CDevice::Initialize()
+{
+    NTSTATUS status = STATUS_SUCCESS;
+
+    status = CQueue::AddQueueToDevice(_Device, &_Queue);
+
+    // Register GNSS Device interface. Note that this sample is not publishing a symbolic link.
+    status = WdfDeviceCreateDeviceInterface(_Device,
+                                            (LPGUID)&GUID_DEVINTERFACE_GNSS,
+                                            nullptr);
+
+    if (!NT_SUCCESS(status))
+    {
+        TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_DEVICE, "WdfDeviceCreateDeviceInterface failed with %!STATUS!", status);
+        goto Exit;
+    }
+
+Exit:
+    return status;
+}
+
+void
+CDevice::OnCleanup(
+    _In_ WDFOBJECT Object
+)
+{
+    CDevice *pDevice = GetDeviceObject(Object);
+
+    // Device object constructed using placement 'new' so explicitly invoke destructor
+    pDevice->~CDevice();
+}
+
+NTSTATUS
+CDevice::OnD0Entry(
+    _In_ WDFDEVICE /*Device*/,
+    _In_ WDF_POWER_DEVICE_STATE /*PreviousState*/
+)
+{
+    NTSTATUS status;
+
+    //
+    // FIX ME:
+    // Add further functionality.
+    // Refer to power consideration from MSDN document: https://docs.microsoft.com/en-us/windows-hardware/drivers/gnss/gnss-driver-requirements
+    //
+
+    status = STATUS_SUCCESS;
+
+    return status;
+}
+
+NTSTATUS
+CDevice::OnD0Exit(
+    _In_ WDFDEVICE /*Device*/,
+    _In_ WDF_POWER_DEVICE_STATE /*TargetState*/
+)
+{
+    NTSTATUS status;
+    
+    //
+    // FIX ME:
+    // Add further functionality.
+    // Refer to power consideration from MSDN document: https://docs.microsoft.com/en-us/windows-hardware/drivers/gnss/gnss-driver-requirements
+    //
+
+    status = STATUS_SUCCESS;
+
+    return status;
+}