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[USBPORT] Add USB2_CommonFrames().

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This commit is contained in:
Vadim Galyant 2017-12-11 18:01:07 +09:00 • committed by Amine Khaldi
parent ae800da85b
commit 3031695100
1 changed files with 27 additions and 0 deletions
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27
drivers/usb/usbport/usb2.c
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@ -711,6 +711,33 @@ USB2_MoveTtEndpoint(IN PUSB2_TT_ENDPOINT TtEndpoint,
return TRUE; return TRUE;
} }
BOOLEAN
NTAPI
USB2_CommonFrames(IN PUSB2_TT_ENDPOINT NextTtEndpoint,
IN PUSB2_TT_ENDPOINT TtEndpoint)
{
UCHAR Frame;
DPRINT("USB2_CommonFrames: \n");
if (NextTtEndpoint->ActualPeriod == ENDPOINT_INTERRUPT_1ms ||
TtEndpoint->ActualPeriod == ENDPOINT_INTERRUPT_1ms)
{
return TRUE;
}
if (NextTtEndpoint->ActualPeriod < TtEndpoint->ActualPeriod)
{
Frame = TtEndpoint->StartFrame % TtEndpoint->ActualPeriod;
}
else
{
Frame = NextTtEndpoint->StartFrame % TtEndpoint->ActualPeriod;
}
return (Frame == TtEndpoint->StartFrame);
}
VOID VOID
NTAPI NTAPI
USB2_ConvertFrame(IN UCHAR Frame, USB2_ConvertFrame(IN UCHAR Frame,