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[USBPORT] Add USB2_GetLastIsoTime().

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This commit is contained in:
Vadim Galyant 2017-11-29 23:50:26 +09:00 • committed by Amine Khaldi
parent c3803bed8a
commit 0216b033cc
1 changed files with 27 additions and 0 deletions
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27
drivers/usb/usbport/usb2.c
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@ -132,6 +132,33 @@ USB2_GetOverhead(IN PUSB2_TT_ENDPOINT TtEndpoint)
return Overhead; return Overhead;
} }
ULONG
NTAPI
USB2_GetLastIsoTime(IN PUSB2_TT_ENDPOINT TtEndpoint,
IN ULONG Frame)
{
PUSB2_TT_ENDPOINT nextTtEndpoint;
ULONG Result;
DPRINT("USB2_GetLastIsoTime: TtEndpoint - %p, Frame - %X\n",
TtEndpoint,
Frame);
nextTtEndpoint = TtEndpoint->Tt->FrameBudget[Frame].IsoEndpoint->NextTtEndpoint;
if (nextTtEndpoint ||
(nextTtEndpoint = TtEndpoint->Tt->FrameBudget[Frame].AltEndpoint) != NULL)
{
Result = nextTtEndpoint->StartTime + nextTtEndpoint->CalcBusTime;
}
else
{
Result = USB2_FS_SOF_TIME;
}
return Result;
}
VOID VOID
NTAPI NTAPI
USB2_InitTtEndpoint(IN PUSB2_TT_ENDPOINT TtEndpoint, USB2_InitTtEndpoint(IN PUSB2_TT_ENDPOINT TtEndpoint,