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[USBPORT] Add USB2_GetOverhead().

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This commit is contained in:
Vadim Galyant
2018-01-21 19:35:42 +01:00
committed by Amine Khaldi
parent c2ae849dab
commit 754f749cfd
1 changed files with 48 additions and 0 deletions
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drivers/usb/usbport/usb2.c
+48
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@@ -10,6 +10,54 @@
//#define NDEBUG
#include <debug.h>
ULONG
NTAPI
USB2_GetOverhead(IN PUSB2_TT_ENDPOINT TtEndpoint)
{
ULONG TransferType;
ULONG Direction;
ULONG DeviceSpeed;
ULONG Overhead;
ULONG HostDelay;
TransferType = TtEndpoint->TtEndpointParams.TransferType;
Direction = TtEndpoint->TtEndpointParams.Direction;
DeviceSpeed = TtEndpoint->TtEndpointParams.Direction;
HostDelay = TtEndpoint->Tt->HcExtension->HcDelayTime;
if (DeviceSpeed == UsbHighSpeed)
{
if (Direction == USBPORT_TRANSFER_DIRECTION_OUT)
{
if (TransferType == USBPORT_TRANSFER_TYPE_ISOCHRONOUS)
Overhead = HostDelay + USB2_HS_ISOCHRONOUS_OUT_OVERHEAD;
else
Overhead = HostDelay + USB2_HS_INTERRUPT_OUT_OVERHEAD;
}
else
{
if (TransferType == USBPORT_TRANSFER_TYPE_ISOCHRONOUS)
Overhead = HostDelay + USB2_HS_ISOCHRONOUS_IN_OVERHEAD;
else
Overhead = HostDelay + USB2_HS_ISOCHRONOUS_OUT_OVERHEAD;
}
}
else if (DeviceSpeed == UsbFullSpeed)
{
if (TransferType == USBPORT_TRANSFER_TYPE_ISOCHRONOUS)
Overhead = HostDelay + USB2_FS_ISOCHRONOUS_OVERHEAD;
else
Overhead = HostDelay + USB2_FS_INTERRUPT_OVERHEAD;
}
else
{
Overhead = HostDelay + USB2_LS_INTERRUPT_OVERHEAD;
}
return Overhead;
}
VOID
NTAPI
USB2_InitTtEndpoint(IN PUSB2_TT_ENDPOINT TtEndpoint,