Files
ViGEmBus/sys/EmulationTargetPDO.cpp
Benjamin Höglinger-Stelzer 45ea4c870d Ported everything
2020-05-11 17:27:15 +02:00

746 lines
19 KiB
C++

#include "EmulationTargetPDO.hpp"
#include "CRTCPP.hpp"
#include "trace.h"
#include "EmulationTargetPDO.tmh"
#define NTSTRSAFE_LIB
#include <ntstrsafe.h>
#include <usbioctl.h>
#include <usbiodef.h>
PCWSTR ViGEm::Bus::Core::EmulationTargetPDO::_deviceLocation = L"Virtual Gamepad Emulation Bus";
NTSTATUS ViGEm::Bus::Core::EmulationTargetPDO::PdoCreateDevice(WDFDEVICE ParentDevice, PWDFDEVICE_INIT DeviceInit)
{
NTSTATUS status = STATUS_UNSUCCESSFUL;
WDF_DEVICE_PNP_CAPABILITIES pnpCaps;
WDF_DEVICE_POWER_CAPABILITIES powerCaps;
WDF_PNPPOWER_EVENT_CALLBACKS pnpPowerCallbacks;
WDF_OBJECT_ATTRIBUTES pdoAttributes;
WDF_IO_QUEUE_CONFIG defaultPdoQueueConfig;
WDFQUEUE defaultPdoQueue;
UNICODE_STRING deviceDescription;
WDF_OBJECT_ATTRIBUTES attributes;
WDF_IO_QUEUE_CONFIG usbInQueueConfig;
WDF_IO_QUEUE_CONFIG notificationsQueueConfig;
PEMULATION_TARGET_PDO_CONTEXT pPdoContext;
DECLARE_CONST_UNICODE_STRING(deviceLocation, L"Virtual Gamepad Emulation Bus");
DECLARE_UNICODE_STRING_SIZE(buffer, MAX_INSTANCE_ID_LEN);
// reserve space for device id
DECLARE_UNICODE_STRING_SIZE(deviceId, MAX_INSTANCE_ID_LEN);
UNREFERENCED_PARAMETER(ParentDevice);
PAGED_CODE();
// set device type
WdfDeviceInitSetDeviceType(DeviceInit, FILE_DEVICE_BUS_EXTENDER);
// Bus is power policy owner
WdfDeviceInitSetPowerPolicyOwnership(DeviceInit, FALSE);
do
{
#pragma region Enter RAW device mode
status = WdfPdoInitAssignRawDevice(DeviceInit, &GUID_DEVCLASS_VIGEM_RAWPDO);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfPdoInitAssignRawDevice failed with status %!STATUS!",
status);
break;
}
WdfDeviceInitSetCharacteristics(DeviceInit, FILE_AUTOGENERATED_DEVICE_NAME, TRUE);
status = WdfDeviceInitAssignSDDLString(DeviceInit, &SDDL_DEVOBJ_SYS_ALL_ADM_RWX_WORLD_RWX_RES_RWX);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfDeviceInitAssignSDDLString failed with status %!STATUS!",
status);
break;
}
#pragma endregion
#pragma region Prepare PDO
status = this->PdoPrepareDevice(DeviceInit, &deviceId, &deviceDescription);
if (!NT_SUCCESS(status))
break;
// set device id
status = WdfPdoInitAssignDeviceID(DeviceInit, &deviceId);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfPdoInitAssignDeviceID failed with status %!STATUS!",
status);
break;
}
// prepare instance id
status = RtlUnicodeStringPrintf(&buffer, L"%02d", this->_SerialNo);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"RtlUnicodeStringPrintf failed with status %!STATUS!",
status);
break;
}
// set instance id
status = WdfPdoInitAssignInstanceID(DeviceInit, &buffer);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfPdoInitAssignInstanceID failed with status %!STATUS!",
status);
break;
}
// set device description (for English operating systems)
status = WdfPdoInitAddDeviceText(DeviceInit, &deviceDescription, &deviceLocation, 0x409);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfPdoInitAddDeviceText failed with status %!STATUS!",
status);
break;
}
// default locale is English
// TODO: add more locales
WdfPdoInitSetDefaultLocale(DeviceInit, 0x409);
#pragma region PNP/Power event callbacks
WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&pnpPowerCallbacks);
pnpPowerCallbacks.EvtDevicePrepareHardware = EvtDevicePrepareHardware;
WdfDeviceInitSetPnpPowerEventCallbacks(DeviceInit, &pnpPowerCallbacks);
#pragma endregion
// NOTE: not utilized at the moment
WdfPdoInitAllowForwardingRequestToParent(DeviceInit);
#pragma endregion
#pragma region Create PDO
// Add common device data context
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&pdoAttributes, EMULATION_TARGET_PDO_CONTEXT);
status = WdfDeviceCreate(&DeviceInit, &pdoAttributes, &this->_PdoDevice);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfDeviceCreate failed with status %!STATUS!",
status);
break;
}
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
"Created PDO 0x%p",
this->_PdoDevice);
#pragma endregion
#pragma region Expose USB Interface
status = WdfDeviceCreateDeviceInterface(
ParentDevice,
const_cast<LPGUID>(&GUID_DEVINTERFACE_USB_DEVICE),
nullptr
);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfDeviceCreateDeviceInterface failed with status %!STATUS!",
status);
break;
}
#pragma endregion
#pragma region Set PDO contexts
//
// Bind this object and device context together
//
pPdoContext = EmulationTargetPdoGetContext(this->_PdoDevice);
pPdoContext->Target = this;
status = this->PdoInitContext();
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"Couldn't initialize additional contexts: %!STATUS!",
status);
break;
}
#pragma endregion
#pragma region Create Queues & Locks
WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
attributes.ParentObject = this->_PdoDevice;
// Create and assign queue for incoming interrupt transfer
WDF_IO_QUEUE_CONFIG_INIT(&usbInQueueConfig, WdfIoQueueDispatchManual);
status = WdfIoQueueCreate(
this->_PdoDevice,
&usbInQueueConfig,
WDF_NO_OBJECT_ATTRIBUTES,
&this->_PendingUsbInRequests
);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfIoQueueCreate (PendingUsbInRequests) failed with status %!STATUS!",
status);
break;
}
// Create and assign queue for user-land notification requests
WDF_IO_QUEUE_CONFIG_INIT(&notificationsQueueConfig, WdfIoQueueDispatchManual);
status = WdfIoQueueCreate(
ParentDevice,
&notificationsQueueConfig,
WDF_NO_OBJECT_ATTRIBUTES,
&this->_PendingNotificationRequests
);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfIoQueueCreate (PendingNotificationRequests) failed with status %!STATUS!",
status);
break;
}
#pragma endregion
#pragma region Default I/O queue setup
WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE(&defaultPdoQueueConfig, WdfIoQueueDispatchParallel);
defaultPdoQueueConfig.EvtIoInternalDeviceControl = EvtIoInternalDeviceControl;
status = WdfIoQueueCreate(
this->_PdoDevice,
&defaultPdoQueueConfig,
WDF_NO_OBJECT_ATTRIBUTES,
&defaultPdoQueue
);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR,
TRACE_BUSPDO,
"WdfIoQueueCreate (Default) failed with status %!STATUS!",
status);
break;
}
#pragma endregion
#pragma region PNP capabilities
WDF_DEVICE_PNP_CAPABILITIES_INIT(&pnpCaps);
pnpCaps.Removable = WdfTrue;
pnpCaps.EjectSupported = WdfTrue;
pnpCaps.SurpriseRemovalOK = WdfTrue;
pnpCaps.Address = this->_SerialNo;
pnpCaps.UINumber = this->_SerialNo;
WdfDeviceSetPnpCapabilities(this->_PdoDevice, &pnpCaps);
#pragma endregion
#pragma region Power capabilities
WDF_DEVICE_POWER_CAPABILITIES_INIT(&powerCaps);
powerCaps.DeviceD1 = WdfTrue;
powerCaps.WakeFromD1 = WdfTrue;
powerCaps.DeviceWake = PowerDeviceD1;
powerCaps.DeviceState[PowerSystemWorking] = PowerDeviceD0;
powerCaps.DeviceState[PowerSystemSleeping1] = PowerDeviceD1;
powerCaps.DeviceState[PowerSystemSleeping2] = PowerDeviceD3;
powerCaps.DeviceState[PowerSystemSleeping3] = PowerDeviceD3;
powerCaps.DeviceState[PowerSystemHibernate] = PowerDeviceD3;
powerCaps.DeviceState[PowerSystemShutdown] = PowerDeviceD3;
WdfDeviceSetPowerCapabilities(this->_PdoDevice, &powerCaps);
#pragma endregion
}
while (FALSE);
TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSPDO, "%!FUNC! Exit with status %!STATUS!", status);
return status;
}
VOID ViGEm::Bus::Core::EmulationTargetPDO::SetSerial(ULONG Serial)
{
this->_SerialNo = Serial;
}
ULONG ViGEm::Bus::Core::EmulationTargetPDO::GetSerial() const
{
return this->_SerialNo;
}
NTSTATUS ViGEm::Bus::Core::EmulationTargetPDO::EnqueueNotification(WDFREQUEST Request) const
{
return (this->IsOwnerProcess())
? WdfRequestForwardToIoQueue(Request, this->_PendingNotificationRequests)
: STATUS_ACCESS_DENIED;
}
bool ViGEm::Bus::Core::EmulationTargetPDO::IsOwnerProcess() const
{
return this->_OwnerProcessId == current_process_id();
}
unsigned long ViGEm::Bus::Core::EmulationTargetPDO::current_process_id()
{
return static_cast<DWORD>((DWORD_PTR)PsGetCurrentProcessId() & 0xFFFFFFFF);
}
#pragma region USB Interface Functions
BOOLEAN USB_BUSIFFN ViGEm::Bus::Core::EmulationTargetPDO::UsbInterfaceIsDeviceHighSpeed(IN PVOID BusContext)
{
UNREFERENCED_PARAMETER(BusContext);
return TRUE;
}
NTSTATUS USB_BUSIFFN ViGEm::Bus::Core::EmulationTargetPDO::UsbInterfaceQueryBusInformation(
IN PVOID BusContext, IN ULONG Level,
IN OUT PVOID BusInformationBuffer,
IN OUT PULONG BusInformationBufferLength,
OUT PULONG BusInformationActualLength)
{
UNREFERENCED_PARAMETER(BusContext);
UNREFERENCED_PARAMETER(Level);
UNREFERENCED_PARAMETER(BusInformationBuffer);
UNREFERENCED_PARAMETER(BusInformationBufferLength);
UNREFERENCED_PARAMETER(BusInformationActualLength);
return STATUS_UNSUCCESSFUL;
}
NTSTATUS USB_BUSIFFN ViGEm::Bus::Core::EmulationTargetPDO::UsbInterfaceSubmitIsoOutUrb(IN PVOID BusContext, IN PURB Urb)
{
UNREFERENCED_PARAMETER(BusContext);
UNREFERENCED_PARAMETER(Urb);
return STATUS_UNSUCCESSFUL;
}
NTSTATUS USB_BUSIFFN ViGEm::Bus::Core::EmulationTargetPDO::UsbInterfaceQueryBusTime(
IN PVOID BusContext, IN OUT PULONG CurrentUsbFrame)
{
UNREFERENCED_PARAMETER(BusContext);
UNREFERENCED_PARAMETER(CurrentUsbFrame);
return STATUS_UNSUCCESSFUL;
}
VOID USB_BUSIFFN ViGEm::Bus::Core::EmulationTargetPDO::UsbInterfaceGetUSBDIVersion(IN PVOID BusContext,
IN OUT PUSBD_VERSION_INFORMATION
VersionInformation,
IN OUT PULONG HcdCapabilities)
{
UNREFERENCED_PARAMETER(BusContext);
if (VersionInformation != nullptr)
{
VersionInformation->USBDI_Version = 0x500; /* Usbport */
VersionInformation->Supported_USB_Version = 0x200; /* USB 2.0 */
}
if (HcdCapabilities != nullptr)
{
*HcdCapabilities = 0;
}
}
#pragma endregion
void ViGEm::Bus::Core::EmulationTargetPDO::UsbAbortPipe()
{
this->AbortPipe();
// Higher driver shutting down, emptying PDOs queues
WdfIoQueuePurge(this->_PendingUsbInRequests, nullptr, nullptr);
WdfIoQueuePurge(this->_PendingNotificationRequests, nullptr, nullptr);
}
NTSTATUS ViGEm::Bus::Core::EmulationTargetPDO::UsbGetConfigurationDescriptorType(PURB Urb)
{
const PUCHAR Buffer = static_cast<PUCHAR>(Urb->UrbControlDescriptorRequest.TransferBuffer);
// First request just gets required buffer size back
if (Urb->UrbControlDescriptorRequest.TransferBufferLength == sizeof(USB_CONFIGURATION_DESCRIPTOR))
{
const ULONG length = sizeof(USB_CONFIGURATION_DESCRIPTOR);
this->GetConfigurationDescriptorType(Buffer, length);
return STATUS_SUCCESS;
}
const ULONG length = Urb->UrbControlDescriptorRequest.TransferBufferLength;
// Second request can store the whole descriptor
if (length >= _UsbConfigurationDescriptionSize)
{
this->GetConfigurationDescriptorType(Buffer, _UsbConfigurationDescriptionSize);
return STATUS_SUCCESS;
}
return STATUS_UNSUCCESSFUL;
}
NTSTATUS ViGEm::Bus::Core::EmulationTargetPDO::UsbSelectConfiguration(PURB Urb)
{
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_USBPDO,
">> >> >> URB_FUNCTION_SELECT_CONFIGURATION: TotalLength %d",
Urb->UrbHeader.Length);
if (Urb->UrbHeader.Length == sizeof(struct _URB_SELECT_CONFIGURATION))
{
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_USBPDO,
">> >> >> URB_FUNCTION_SELECT_CONFIGURATION: NULL ConfigurationDescriptor");
return STATUS_SUCCESS;
}
return this->SelectConfiguration(Urb);
}
ViGEm::Bus::Core::EmulationTargetPDO::
EmulationTargetPDO(ULONG Serial, LONG SessionId, USHORT VendorId, USHORT ProductId) : _SerialNo(Serial),
_SessionId(SessionId),
_VendorId(VendorId),
_ProductId(ProductId)
{
this->_OwnerProcessId = current_process_id();
KeInitializeEvent(&this->_PdoBootNotificationEvent, NotificationEvent, FALSE);
}
ViGEm::Bus::Core::EmulationTargetPDO* ViGEm::Bus::Core::EmulationTargetPDO::GetPdoBySerial(
IN WDFDEVICE ParentDevice, IN ULONG SerialNo)
{
WDF_CHILD_RETRIEVE_INFO info;
const WDFCHILDLIST list = WdfFdoGetDefaultChildList(ParentDevice);
PDO_IDENTIFICATION_DESCRIPTION description;
WDF_CHILD_IDENTIFICATION_DESCRIPTION_HEADER_INIT(&description.Header, sizeof(description));
description.SerialNo = SerialNo;
WDF_CHILD_RETRIEVE_INFO_INIT(&info, &description.Header);
const WDFDEVICE pdoDevice = WdfChildListRetrievePdo(list, &info);
if (pdoDevice == nullptr)
return nullptr;
return EmulationTargetPdoGetContext(pdoDevice)->Target;
}
NTSTATUS ViGEm::Bus::Core::EmulationTargetPDO::EvtDevicePrepareHardware(
_In_ WDFDEVICE Device,
_In_ WDFCMRESLIST ResourcesRaw,
_In_ WDFCMRESLIST ResourcesTranslated
)
{
UNREFERENCED_PARAMETER(ResourcesRaw);
UNREFERENCED_PARAMETER(ResourcesTranslated);
const auto ctx = EmulationTargetPdoGetContext(Device);
return ctx->Target->PdoPrepareHardware();
}
VOID ViGEm::Bus::Core::EmulationTargetPDO::EvtIoInternalDeviceControl(
_In_ WDFQUEUE Queue,
_In_ WDFREQUEST Request,
_In_ size_t OutputBufferLength,
_In_ size_t InputBufferLength,
_In_ ULONG IoControlCode
)
{
const auto ctx = EmulationTargetPdoGetContext(WdfIoQueueGetDevice(Queue));
UNREFERENCED_PARAMETER(OutputBufferLength);
UNREFERENCED_PARAMETER(InputBufferLength);
NTSTATUS status = STATUS_INVALID_PARAMETER;
PIRP irp;
PURB urb;
PIO_STACK_LOCATION irpStack;
TraceDbg(TRACE_BUSPDO, "%!FUNC! Entry");
// No help from the framework available from here on
irp = WdfRequestWdmGetIrp(Request);
irpStack = IoGetCurrentIrpStackLocation(irp);
switch (IoControlCode)
{
case IOCTL_INTERNAL_USB_SUBMIT_URB:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> IOCTL_INTERNAL_USB_SUBMIT_URB");
urb = static_cast<PURB>(URB_FROM_IRP(irp));
switch (urb->UrbHeader.Function)
{
case URB_FUNCTION_CONTROL_TRANSFER:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_CONTROL_TRANSFER");
status = ctx->Target->UsbControlTransfer(urb);
break;
case URB_FUNCTION_CONTROL_TRANSFER_EX:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_CONTROL_TRANSFER_EX");
status = STATUS_UNSUCCESSFUL;
break;
case URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER:
TraceDbg(
TRACE_BUSPDO,
">> >> URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER");
status = ctx->Target->UsbBulkOrInterruptTransfer(&urb->UrbBulkOrInterruptTransfer, Request);
break;
case URB_FUNCTION_SELECT_CONFIGURATION:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_SELECT_CONFIGURATION");
status = ctx->Target->UsbSelectConfiguration(urb);
break;
case URB_FUNCTION_SELECT_INTERFACE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_SELECT_INTERFACE");
status = ctx->Target->UsbSelectInterface(urb);
break;
case URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE");
switch (urb->UrbControlDescriptorRequest.DescriptorType)
{
case USB_DEVICE_DESCRIPTOR_TYPE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> >> USB_DEVICE_DESCRIPTOR_TYPE");
ctx->Target->UsbGetDeviceDescriptorType(
static_cast<PUSB_DEVICE_DESCRIPTOR>(urb->UrbControlDescriptorRequest.TransferBuffer));
break;
case USB_CONFIGURATION_DESCRIPTOR_TYPE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> >> USB_CONFIGURATION_DESCRIPTOR_TYPE");
status = ctx->Target->UsbGetConfigurationDescriptorType(urb);
break;
case USB_STRING_DESCRIPTOR_TYPE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> >> USB_STRING_DESCRIPTOR_TYPE");
status = ctx->Target->UsbGetStringDescriptorType(urb);
break;
default:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> >> Unknown descriptor type");
break;
}
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
"<< <<");
break;
case URB_FUNCTION_GET_STATUS_FROM_DEVICE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_GET_STATUS_FROM_DEVICE");
// Defaults always succeed
status = STATUS_SUCCESS;
break;
case URB_FUNCTION_ABORT_PIPE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_ABORT_PIPE");
ctx->Target->UsbAbortPipe();
break;
case URB_FUNCTION_CLASS_INTERFACE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_CLASS_INTERFACE");
status = ctx->Target->UsbClassInterface(urb);
break;
case URB_FUNCTION_GET_DESCRIPTOR_FROM_INTERFACE:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> URB_FUNCTION_GET_DESCRIPTOR_FROM_INTERFACE");
status = ctx->Target->UsbGetDescriptorFromInterface(urb);
break;
default:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> >> Unknown function: 0x%X",
urb->UrbHeader.Function);
break;
}
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
"<<");
break;
case IOCTL_INTERNAL_USB_GET_PORT_STATUS:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> IOCTL_INTERNAL_USB_GET_PORT_STATUS");
// We report the (virtual) port as always active
*static_cast<unsigned long*>(irpStack->Parameters.Others.Argument1) = USBD_PORT_ENABLED | USBD_PORT_CONNECTED;
status = STATUS_SUCCESS;
break;
case IOCTL_INTERNAL_USB_RESET_PORT:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> IOCTL_INTERNAL_USB_RESET_PORT");
// Sure, why not ;)
status = STATUS_SUCCESS;
break;
case IOCTL_INTERNAL_USB_SUBMIT_IDLE_NOTIFICATION:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> IOCTL_INTERNAL_USB_SUBMIT_IDLE_NOTIFICATION");
// TODO: implement?
// This happens if the I/O latency is too high so HIDUSB aborts communication.
status = STATUS_SUCCESS;
break;
default:
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_BUSPDO,
">> Unknown I/O control code 0x%X",
IoControlCode);
break;
}
if (status != STATUS_PENDING)
{
WdfRequestComplete(Request, status);
}
TraceDbg(TRACE_BUSPDO, "%!FUNC! Exit with status %!STATUS!", status);
}