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Implemented new DS4_SUBMIT_REPORT_EX

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This commit is contained in:
Benjamin Höglinger-Stelzer
2020-09-07 21:44:46 +02:00
parent 0c920602e7
commit 5611bbd3fa
3 changed files with 93 additions and 24 deletions
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56
sys/Ds4Pdo.cpp
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@@ -1088,8 +1088,13 @@ NTSTATUS ViGEm::Bus::Targets::EmulationTargetDS4::UsbControlTransfer(PURB Urb)
NTSTATUS ViGEm::Bus::Targets::EmulationTargetDS4::SubmitReportImpl(PVOID NewReport)
{
NTSTATUS status;
WDFREQUEST usbRequest;
NTSTATUS status;
WDFREQUEST usbRequest;
/*
* The logic here is unusual to keep backwards compatibility with the
* original API that didn't allow submitting the full report.
*/
status = WdfIoQueueRetrieveNextRequest(this->_PendingUsbInRequests, &usbRequest);
@@ -1100,19 +1105,52 @@ NTSTATUS ViGEm::Bus::Targets::EmulationTargetDS4::SubmitReportImpl(PVOID NewRepo
PIRP pendingIrp = WdfRequestWdmGetIrp(usbRequest);
// Get USB request block
PURB urb = static_cast<PURB>(URB_FROM_IRP(pendingIrp));
const auto urb = static_cast<PURB>(URB_FROM_IRP(pendingIrp));
// Get transfer buffer
auto Buffer = static_cast<PUCHAR>(urb->UrbBulkOrInterruptTransfer.TransferBuffer);
const auto buffer = static_cast<PUCHAR>(urb->UrbBulkOrInterruptTransfer.TransferBuffer);
// Set correct buffer size
urb->UrbBulkOrInterruptTransfer.TransferBufferLength = DS4_REPORT_SIZE;
/* Copy report to cache and transfer buffer
* Skip first byte as it contains the never changing report id */
RtlCopyBytes(this->_Report + 1, &(static_cast<PDS4_SUBMIT_REPORT>(NewReport))->Report, sizeof(DS4_REPORT));
// Cast to expected struct
const auto pSubmit = static_cast<PDS4_SUBMIT_REPORT>(NewReport);
if (Buffer)
RtlCopyBytes(Buffer, this->_Report, DS4_REPORT_SIZE);
/*
* Copy report to cache and transfer buffer
* Skip first byte as it contains the never changing report ID
*/
//
// "Old" API which only allows to update partial report
//
if (pSubmit->Size == sizeof(DS4_SUBMIT_REPORT))
{
TraceDbg(TRACE_DS4, "Received DS4_SUBMIT_REPORT update");
RtlCopyBytes(
&this->_Report[1],
&(static_cast<PDS4_SUBMIT_REPORT>(NewReport))->Report,
sizeof((static_cast<PDS4_SUBMIT_REPORT>(NewReport))->Report)
);
}
//
// "Extended" API allowing complete report update
//
if (pSubmit->Size == sizeof(DS4_SUBMIT_REPORT_EX))
{
TraceDbg(TRACE_DS4, "Received DS4_SUBMIT_REPORT_EX update");
RtlCopyBytes(
&this->_Report[1],
&(static_cast<PDS4_SUBMIT_REPORT_EX>(NewReport))->Report,
sizeof((static_cast<PDS4_SUBMIT_REPORT_EX>(NewReport))->Report)
);
}
if (buffer)
RtlCopyBytes(buffer, this->_Report, DS4_REPORT_SIZE);
// Complete pending request
WdfRequestComplete(usbRequest, status);