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[USBPORT] Add USB2_CheckTtEndpointInsert().

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This commit is contained in:
Vadim Galyant 2017-11-29 23:25:12 +09:00 committed by Amine Khaldi
parent e701da4923
commit c3803bed8a
1 changed files with 46 additions and 0 deletions
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46
drivers/usb/usbport/usb2.c
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@ -38,6 +38,52 @@ USB2_AddDataBitStuff(IN USHORT DataTime)
return (DataTime + (DataTime / 16));
}
BOOLEAN
NTAPI
USB2_CheckTtEndpointInsert(IN PUSB2_TT_ENDPOINT nextTtEndpoint,
IN PUSB2_TT_ENDPOINT TtEndpoint)
{
ULONG TransferType;
DPRINT("USB2_CheckTtEndpointInsert: nextTtEndpoint - %p, TtEndpoint - %p\n",
nextTtEndpoint,
TtEndpoint);
ASSERT(TtEndpoint);
if (TtEndpoint->CalcBusTime >= (USB2_FS_MAX_PERIODIC_ALLOCATION / 2))
{
DPRINT1("USB2_CheckTtEndpointInsert: Result - FALSE\n");
return FALSE;
}
if (!nextTtEndpoint)
{
DPRINT("USB2_CheckTtEndpointInsert: Result - TRUE\n");
return TRUE;
}
TransferType = TtEndpoint->TtEndpointParams.TransferType;
if (nextTtEndpoint->ActualPeriod < TtEndpoint->ActualPeriod &&
TransferType == USBPORT_TRANSFER_TYPE_INTERRUPT)
{
DPRINT("USB2_CheckTtEndpointInsert: Result - TRUE\n");
return TRUE;
}
if ((nextTtEndpoint->ActualPeriod <= TtEndpoint->ActualPeriod &&
TransferType == USBPORT_TRANSFER_TYPE_ISOCHRONOUS) ||
nextTtEndpoint == TtEndpoint)
{
DPRINT("USB2_CheckTtEndpointInsert: Result - TRUE\n");
return TRUE;
}
DPRINT("USB2_CheckTtEndpointInsert: Result - FALSE\n");
return FALSE;
}
ULONG
NTAPI
USB2_GetOverhead(IN PUSB2_TT_ENDPOINT TtEndpoint)