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Removed unused code

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This commit is contained in:
Benjamin Höglinger-Stelzer
2020-05-13 21:37:57 +02:00
parent 9e4b91d105
commit 225c536205
7 changed files with 34 additions and 410 deletions
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216
sys/ByteArray.c
View File

@@ -1,216 +0,0 @@
/*
* Virtual Gamepad Emulation Framework - Windows kernel-mode bus driver
*
* MIT License
*
* Copyright (c) 2016-2020 Nefarius Software Solutions e.U. and Contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "ByteArray.h"
//
// Helpers
//
ULONG_PTR align_to_page_size(ULONG_PTR val)
{
return (val + (PAGE_SIZE - 1)) & -PAGE_SIZE;
}
//
// Forward declarations
//
NTSTATUS IncreaseCapacityByteArray(IN PBYTE_ARRAY Array, IN ULONG NumElements);
//
// Implementation
//
NTSTATUS InitByteArray(IN OUT PBYTE_ARRAY Array)
{
//
// Initialize size and default capacity
Array->Size = 0;
Array->Capacity = INITIAL_ARRAY_CAPACITY;
//
// Allocate memory
Array->Data = (UCHAR*)ExAllocatePoolWithTag(PagedPool, Array->Capacity, ARRAY_POOL_TAG);
if (Array->Data == NULL)
return STATUS_INSUFFICIENT_RESOURCES;
return STATUS_SUCCESS;
}
NTSTATUS AppendElementByteArray(IN PBYTE_ARRAY Array, IN PVOID Element)
{
//
// Make sure there is room to expand into
if (((Array->Size + 1) * sizeof(UCHAR)) > Array->Capacity)
{
//
// Increase capacity
NTSTATUS status = IncreaseCapacityByteArray(Array, sizeof(UCHAR));
if (!NT_SUCCESS(status))
return status;
}
//
// Append the element and increment the size
RtlCopyMemory(Array->Data + (Array->Size * sizeof(UCHAR)), Element, sizeof(UCHAR));
//
// Increment size
Array->Size += 1;
return STATUS_SUCCESS;
}
NTSTATUS AppendElementsByteArray(IN PBYTE_ARRAY Array, IN PVOID Elements, IN ULONG NumElements)
{
//
// Make sure there is room to expand into
if ((Array->Size + NumElements) * sizeof(UCHAR) > Array->Capacity)
{
//
// Increase capacity
NTSTATUS status = IncreaseCapacityByteArray(Array, NumElements);
if (!NT_SUCCESS(status))
return status;
}
//
// Append the elements and increase the size
RtlCopyMemory(Array->Data + (Array->Size * sizeof(UCHAR)), Elements, NumElements * sizeof(UCHAR));
//
// Increase size
Array->Size += NumElements;
return STATUS_SUCCESS;
}
NTSTATUS IncreaseCapacityByteArray(IN PBYTE_ARRAY Array, IN ULONG NumElements)
{
UCHAR* NewData = NULL;
//
// Align new size to the immediate next page boundary
Array->Capacity = align_to_page_size((Array->Size + NumElements) * sizeof(UCHAR));
//
// Allocate new data with new capacity
NewData = (UCHAR*)ExAllocatePoolWithTag(PagedPool, Array->Capacity, ARRAY_POOL_TAG);
if (NewData == NULL)
return STATUS_INSUFFICIENT_RESOURCES;
//
// Copy old data over
RtlCopyMemory(NewData, Array->Data, Array->Size * sizeof(UCHAR));
//
// Free old data
ExFreePoolWithTag(Array->Data, ARRAY_POOL_TAG);
//
// Set data pointer to new allocation
Array->Data = NewData;
return STATUS_SUCCESS;
}
NTSTATUS GetElementByteArray(IN PBYTE_ARRAY Array, IN ULONG Index, OUT PVOID Element)
{
//
// Check array bounds
if (Index >= Array->Size || (LONG)Index < 0)
return STATUS_ARRAY_BOUNDS_EXCEEDED;
//
// Copy data over
RtlCopyMemory(Element, Array->Data + (Index * sizeof(UCHAR)), sizeof(UCHAR));
return STATUS_SUCCESS;
}
NTSTATUS GetElementsByteArray(IN PBYTE_ARRAY Array, IN ULONG Index, OUT PVOID Elements, IN ULONG NumElements)
{
//
// Check array bounds
if (Index >= Array->Size || (LONG)Index < 0)
return STATUS_ARRAY_BOUNDS_EXCEEDED;
//
// Copy data over
RtlCopyMemory(Elements, Array->Data + (Index * sizeof(UCHAR)), NumElements * sizeof(UCHAR));
return STATUS_SUCCESS;
}
NTSTATUS SetElementByteArray(IN PBYTE_ARRAY Array, IN ULONG Index, IN PVOID Element)
{
//
// Check array bounds
if (Index >= Array->Size || (LONG)Index < 0)
return STATUS_ARRAY_BOUNDS_EXCEEDED;
//
// Copy data over
RtlCopyMemory(Array->Data + (Index * sizeof(UCHAR)), Element, sizeof(UCHAR));
return STATUS_SUCCESS;
}
NTSTATUS SetElementsByteArray(IN PBYTE_ARRAY Array, IN ULONG Index, IN PVOID Elements, IN ULONG NumElements)
{
//
// Check array bounds
if (Index >= Array->Size || (LONG)Index < 0)
return STATUS_ARRAY_BOUNDS_EXCEEDED;
//
// Copy data over
RtlCopyMemory(Array->Data + (Index * sizeof(UCHAR)), Elements, NumElements * sizeof(UCHAR));
return STATUS_SUCCESS;
}
NTSTATUS FreeByteArray(IN PBYTE_ARRAY Array)
{
if (Array->Data == NULL)
return STATUS_MEMORY_NOT_ALLOCATED;
//
// Free data
ExFreePoolWithTag(Array->Data, ARRAY_POOL_TAG);
//
// Null out everything
Array->Data = NULL;
Array->Size = 0;
Array->Capacity = 0;
return STATUS_SUCCESS;
}

60
sys/ByteArray.h
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@@ -1,60 +0,0 @@
/*
* Virtual Gamepad Emulation Framework - Windows kernel-mode bus driver
*
* MIT License
*
* Copyright (c) 2016-2020 Nefarius Software Solutions e.U. and Contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include <ntifs.h>
EXTERN_C_START
#define INITIAL_ARRAY_CAPACITY PAGE_SIZE
#define ARRAY_POOL_TAG 'arrA'
typedef struct _BYTE_ARRAY
{
UCHAR* Data; //> array of data we're storing
ULONG_PTR Size; //> slots used so far
ULONG_PTR Capacity; //> total available memory
} BYTE_ARRAY, *PBYTE_ARRAY;
NTSTATUS InitByteArray(IN OUT PBYTE_ARRAY Array);
NTSTATUS AppendElementByteArray(IN PBYTE_ARRAY Array, IN PVOID Element);
NTSTATUS AppendElementsByteArray(IN PBYTE_ARRAY Array, IN PVOID Elements, IN ULONG NumElements);
NTSTATUS GetElementByteArray(IN PBYTE_ARRAY Array, IN ULONG Index, OUT PVOID Element);
NTSTATUS GetElementsByteArray(IN PBYTE_ARRAY Array, IN ULONG Index, OUT PVOID Elements, IN ULONG NumElements);
NTSTATUS SetElementByteArray(IN PBYTE_ARRAY Array, IN ULONG Index, IN PVOID Element);
NTSTATUS SetElementsByteArray(IN PBYTE_ARRAY Array, IN ULONG Index, IN PVOID Elements, IN ULONG NumElements);
NTSTATUS FreeByteArray(IN PBYTE_ARRAY Array);
EXTERN_C_END

95
sys/Context.h
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@@ -1,95 +0,0 @@
/*
* Virtual Gamepad Emulation Framework - Windows kernel-mode bus driver
*
* MIT License
*
* Copyright (c) 2016-2020 Nefarius Software Solutions e.U. and Contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
//
// FDO (bus device) context data
//
typedef struct _FDO_DEVICE_DATA
{
//
// Counter of interface references
//
LONG InterfaceReferenceCounter;
//
// Next SessionId to assign to a file handle
//
LONG NextSessionId;
//
// Periodic timer sweeping up orphaned requests
//
WDFTIMER PendingPluginRequestsCleanupTimer;
} FDO_DEVICE_DATA, *PFDO_DEVICE_DATA;
#define FDO_FIRST_SESSION_ID 100
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(FDO_DEVICE_DATA, FdoGetData)
//
// Context data associated with file objects created by user mode applications
//
typedef struct _FDO_FILE_DATA
{
//
// SessionId associated with file handle. Used to map file handles to emulated gamepad devices
//
LONG SessionId;
} FDO_FILE_DATA, *PFDO_FILE_DATA;
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(FDO_FILE_DATA, FileObjectGetData)
//
// Context data for plugin requests
//
typedef struct _FDO_PLUGIN_REQUEST_DATA
{
//
// Unique serial number of the device on the bus
//
ULONG Serial;
//
// High resolution timestamp taken when this request got moved to pending state
//
LARGE_INTEGER Timestamp;
//
// Performance counter system frequency taken upon fetching timestamp
//
LARGE_INTEGER Frequency;
} FDO_PLUGIN_REQUEST_DATA, *PFDO_PLUGIN_REQUEST_DATA;
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(FDO_PLUGIN_REQUEST_DATA, PluginRequestGetData)

7
sys/Util.h
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@@ -27,13 +27,6 @@
#pragma once
//
// Returns the current caller process id.
//
#define CURRENT_PROCESS_ID() ((DWORD)((DWORD_PTR)PsGetCurrentProcessId() & 0xFFFFFFFF))
#define IS_OWNER(_pdo_) (_pdo_->OwnerProcessId == CURRENT_PROCESS_ID())
//
// Represents a MAC address.
//

6
sys/ViGEmBus.vcxproj
View File

@@ -188,8 +188,6 @@
<ClInclude Include="$(SolutionDir)\Include\ViGEmBusDriver.h" />
<ClInclude Include="..\client\include\ViGEm\km\BusShared.h" />
<ClInclude Include="busenum.h" />
<ClInclude Include="ByteArray.h" />
<ClInclude Include="Context.h" />
<ClInclude Include="CRTCPP.hpp" />
<ClInclude Include="Ds4Pdo.hpp" />
<ClInclude Include="EmulationTargetPDO.hpp" />
@@ -205,7 +203,6 @@
<ItemGroup>
<ClCompile Include="busenum.cpp" />
<ClCompile Include="buspdo.cpp" />
<ClCompile Include="ByteArray.c" />
<ClCompile Include="Driver.cpp" />
<ClCompile Include="Ds4Pdo.cpp" />
<ClCompile Include="EmulationTargetPDO.cpp" />
@@ -213,9 +210,6 @@
<ClCompile Include="Util.c" />
<ClCompile Include="XusbPdo.cpp" />
</ItemGroup>
<ItemGroup>
<None Include="cpp.hint" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>

12
sys/ViGEmBus.vcxproj.filters
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@@ -39,15 +39,9 @@
<ClInclude Include="busenum.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="Context.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="Util.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="ByteArray.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="$(SolutionDir)\Include\ViGEmBusDriver.h">
<Filter>Header Files\Common</Filter>
</ClInclude>
@@ -80,9 +74,6 @@
<ClCompile Include="Util.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="ByteArray.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="XusbPdo.cpp">
<Filter>Source Files\Targets</Filter>
</ClCompile>
@@ -110,7 +101,4 @@
<Filter>Resource Files</Filter>
</ResourceCompile>
</ItemGroup>
<ItemGroup>
<None Include="cpp.hint" />
</ItemGroup>
</Project>

48
sys/busenum.h
View File

@@ -39,27 +39,51 @@
#include "Queue.hpp"
#include <usb.h>
#include <usbbusif.h>
#include "Context.h"
#include "Util.h"
#pragma region Macros
#define HID_LANGUAGE_ID_LENGTH 0x04
#define VIGEM_POOL_TAG 0x45476956 // "EGiV"
#define DRIVERNAME "ViGEm: "
#define ORC_PC_FREQUENCY_DIVIDER 1000
#define ORC_TIMER_START_DELAY 500 // ms
#define ORC_TIMER_PERIODIC_DUE_TIME 500 // ms
#define ORC_REQUEST_MAX_AGE 500 // ms
#pragma endregion
//
// FDO (bus device) context data
//
typedef struct _FDO_DEVICE_DATA
{
//
// Counter of interface references
//
LONG InterfaceReferenceCounter;
//
// Next SessionId to assign to a file handle
//
LONG NextSessionId;
} FDO_DEVICE_DATA, * PFDO_DEVICE_DATA;
#define FDO_FIRST_SESSION_ID 100
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(FDO_DEVICE_DATA, FdoGetData)
//
// Context data associated with file objects created by user mode applications
//
typedef struct _FDO_FILE_DATA
{
//
// SessionId associated with file handle. Used to map file handles to emulated gamepad devices
//
LONG SessionId;
} FDO_FILE_DATA, * PFDO_FILE_DATA;
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(FDO_FILE_DATA, FileObjectGetData)
EXTERN_C_START
@@ -78,10 +102,6 @@ EVT_WDF_CHILD_LIST_CREATE_DEVICE Bus_EvtDeviceListCreatePdo;
EVT_WDF_CHILD_LIST_IDENTIFICATION_DESCRIPTION_COMPARE Bus_EvtChildListIdentificationDescriptionCompare;
EVT_WDF_DEVICE_PREPARE_HARDWARE Pdo_EvtDevicePrepareHardware;
EVT_WDF_IO_QUEUE_IO_INTERNAL_DEVICE_CONTROL Pdo_EvtIoInternalDeviceControl;
EVT_WDF_OBJECT_CONTEXT_CLEANUP Bus_EvtDriverContextCleanup;
#pragma endregion