From 96eb96dfb613e4c745db6bd1f53a92fe7e2290fc Mon Sep 17 00:00:00 2001
From: karlf <karlf@microsoft.com>
Date: Thu, 11 Aug 2016 13:28:13 -0700
Subject: Updated for "Windows 10 Anniversary Update" (Version 1607)

---
 usb/wdf_osrfx2_lab/umdf/step3/ControlQueue.cpp | 246 +++++++++++++++++++++++++
 1 file changed, 246 insertions(+)
 create mode 100644 usb/wdf_osrfx2_lab/umdf/step3/ControlQueue.cpp

(limited to 'usb/wdf_osrfx2_lab/umdf/step3/ControlQueue.cpp')

diff --git a/usb/wdf_osrfx2_lab/umdf/step3/ControlQueue.cpp b/usb/wdf_osrfx2_lab/umdf/step3/ControlQueue.cpp
new file mode 100644
index 00000000..48de237d
--- /dev/null
+++ b/usb/wdf_osrfx2_lab/umdf/step3/ControlQueue.cpp
@@ -0,0 +1,246 @@
+/*++
+
+Copyright (c) Microsoft Corporation, All Rights Reserved
+
+Module Name:
+
+    ControlQueue.cpp
+
+Abstract:
+
+    This file implements the I/O queue interface and performs
+    the ioctl operations.
+
+Environment:
+
+    Windows User-Mode Driver Framework (WUDF)
+
+--*/
+
+#include "internal.h"
+
+#include "winioctl.h"
+
+#include "ControlQueue.tmh"
+
+CMyControlQueue::CMyControlQueue(
+    _In_ PCMyDevice Device
+    ) : CMyQueue(Device)
+{
+
+}
+
+HRESULT
+STDMETHODCALLTYPE
+CMyControlQueue::QueryInterface(
+    _In_ REFIID InterfaceId,
+    _Out_ PVOID *Object
+    )
+/*++
+
+Routine Description:
+
+
+    Query Interface
+
+Aruments:
+    
+    Follows COM specifications
+
+Return Value:
+
+    HRESULT indicatin success or failure
+
+--*/
+{
+    HRESULT hr;
+
+
+    if (IsEqualIID(InterfaceId, __uuidof(IQueueCallbackDeviceIoControl))) 
+    {
+        hr = S_OK;
+        *Object = QueryIQueueCallbackDeviceIoControl(); 
+
+    } 
+    else 
+    {
+        hr = CMyQueue::QueryInterface(InterfaceId, Object);
+    }
+
+    return hr;
+}
+
+//
+// Initialize 
+//
+
+HRESULT 
+CMyControlQueue::CreateInstance(
+    _In_ PCMyDevice Device,
+    _Out_ PCMyControlQueue *Queue
+    )
+/*++
+
+Routine Description:
+
+
+    CreateInstance creates an instance of the queue object.
+
+Aruments:
+    
+    ppUkwn - OUT parameter is an IUnknown interface to the queue object
+
+Return Value:
+
+    HRESULT indicatin success or failure
+
+--*/
+{
+    PCMyControlQueue queue = NULL;
+    HRESULT hr = S_OK;
+
+    queue = new CMyControlQueue(Device);
+
+    if (NULL == queue)
+    {
+        hr = E_OUTOFMEMORY;
+    }
+
+    //
+    // Call the queue callback object to initialize itself.  This will create 
+    // its partner queue framework object.
+    //
+
+    if (SUCCEEDED(hr))
+    {
+        hr = queue->Initialize();
+    }
+
+    if (SUCCEEDED(hr)) 
+    {
+        *Queue = queue;
+    }
+    else
+    {
+        SAFE_RELEASE(queue);
+    }
+
+    return hr;
+}
+
+HRESULT
+CMyControlQueue::Initialize(
+    VOID
+    )
+{
+    HRESULT hr;
+
+    //
+    // First initialize the base class.  This will create the partner FxIoQueue
+    // object and setup automatic forwarding of I/O controls.
+    //
+    
+    hr = __super::Initialize(WdfIoQueueDispatchSequential, 
+                             false, 
+                             true);
+
+    //
+    // return the status.
+    //
+
+    return hr;
+}
+
+VOID
+STDMETHODCALLTYPE
+CMyControlQueue::OnDeviceIoControl(
+    _In_ IWDFIoQueue *FxQueue,
+    _In_ IWDFIoRequest *FxRequest,
+    _In_ ULONG ControlCode,
+    _In_ SIZE_T InputBufferSizeInBytes,
+    _In_ SIZE_T OutputBufferSizeInBytes
+    )
+/*++
+
+Routine Description:
+
+
+    DeviceIoControl dispatch routine
+
+Aruments:
+    
+    FxQueue - Framework Queue instance
+    FxRequest - Framework Request  instance
+    ControlCode - IO Control Code
+    InputBufferSizeInBytes - Lenth of input buffer
+    OutputBufferSizeInBytes - Lenth of output buffer
+
+    Always succeeds DeviceIoIoctl
+Return Value:
+
+    VOID
+
+--*/
+{
+    UNREFERENCED_PARAMETER(FxQueue);
+    UNREFERENCED_PARAMETER(OutputBufferSizeInBytes);    
+    
+    IWDFMemory *memory = NULL;
+    PVOID buffer;
+
+    SIZE_T bigBufferCb;
+
+    ULONG information = 0;
+
+    bool completeRequest = true;
+
+    HRESULT hr = S_OK;
+
+    switch (ControlCode)
+    {
+        case IOCTL_OSRUSBFX2_SET_BAR_GRAPH_DISPLAY:
+        {
+            //
+            // Make sure the buffer is big enough to hold the input for the
+            // control transfer.
+            //
+
+            if (InputBufferSizeInBytes < sizeof(BAR_GRAPH_STATE))
+            {
+                hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
+            }
+            else
+            {
+                FxRequest->GetInputMemory(&memory);
+            }
+
+            //
+            // Get the data buffer and use it to set the bar graph on the
+            // device.
+            //
+
+            if (SUCCEEDED(hr)) 
+            {
+                buffer = memory->GetDataBuffer(&bigBufferCb);
+                memory->Release();
+
+                hr = m_Device->SetBarGraphDisplay((PBAR_GRAPH_STATE) buffer);
+            }
+
+            break;
+        }
+
+        default:
+        {
+            hr = HRESULT_FROM_WIN32(ERROR_INVALID_FUNCTION);
+            break;
+        }
+    }
+
+    if (completeRequest)
+    {
+        FxRequest->CompleteWithInformation(hr, information);
+    }
+
+    return;
+}
-- 
cgit v1.3.1