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[USBPORT] Add USB2_GetStartTime().

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This commit is contained in:
Vadim Galyant
2017-11-30 00:11:48 +09:00
committed by Amine Khaldi
parent 0216b033cc
commit 22b8777f84
1 changed files with 43 additions and 0 deletions
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43
drivers/usb/usbport/usb2.c
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@@ -159,6 +159,49 @@ USB2_GetLastIsoTime(IN PUSB2_TT_ENDPOINT TtEndpoint,
return Result;
}
ULONG
NTAPI
USB2_GetStartTime(IN PUSB2_TT_ENDPOINT nextTtEndpoint,
IN PUSB2_TT_ENDPOINT TtEndpoint,
IN PUSB2_TT_ENDPOINT prevTtEndpoint,
IN ULONG Frame)
{
PUSB2_TT_ENDPOINT ttEndpoint;
ULONG TransferType;
DPRINT("USB2_GetStartTime: nextTtEndpoint - %p, TtEndpoint - %p, prevTtEndpoint - %p, Frame - %X\n",
nextTtEndpoint,
TtEndpoint,
prevTtEndpoint,
Frame);
TransferType = TtEndpoint->TtEndpointParams.TransferType;
if (nextTtEndpoint && TransferType == USBPORT_TRANSFER_TYPE_ISOCHRONOUS)
{
return nextTtEndpoint->StartTime + nextTtEndpoint->CalcBusTime;
}
if (TransferType == USBPORT_TRANSFER_TYPE_ISOCHRONOUS)
{
ttEndpoint = TtEndpoint->Tt->FrameBudget[Frame].AltEndpoint;
if (ttEndpoint)
return ttEndpoint->StartTime + ttEndpoint->CalcBusTime;
else
return USB2_FS_SOF_TIME;
}
else
{
ttEndpoint = prevTtEndpoint;
if (ttEndpoint == TtEndpoint->Tt->FrameBudget[Frame].IntEndpoint)
return USB2_GetLastIsoTime(TtEndpoint, Frame);
else
return ttEndpoint->StartTime + ttEndpoint->CalcBusTime;
}
}
VOID
NTAPI
USB2_InitTtEndpoint(IN PUSB2_TT_ENDPOINT TtEndpoint,