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[USBPORT] Add USB2_GetCMASK().

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This commit is contained in:
Vadim Galyant 2017-12-09 17:15:40 +09:00 committed by Amine Khaldi
parent f3c869a16b
commit 5ffefbe945
1 changed files with 73 additions and 0 deletions
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73
drivers/usb/usbport/usb2.c
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@ -564,6 +564,79 @@ USB2_GetSMASK(IN PUSB2_TT_ENDPOINT TtEndpoint)
return SMask; return SMask;
} }
UCHAR
NTAPI
USB2_GetCMASK(IN PUSB2_TT_ENDPOINT TtEndpoint)
{
ULONG NumCompletes;
ULONG TransferType;
ULONG DeviceSpeed;
ULONG Direction;
UCHAR Result;
UCHAR MicroFrameCS;
UCHAR HcFrame;
UCHAR HcMicroFrame;
UCHAR MaskCS = 0;
static const UCHAR CMASKS[USB2_MICROFRAMES] = {
0x1C, 0x38, 0x70, 0xE0, 0xC1, 0x83, 0x07, 0x0E
};
TransferType = TtEndpoint->TtEndpointParams.TransferType;
DeviceSpeed = TtEndpoint->TtEndpointParams.DeviceSpeed;
Direction = TtEndpoint->TtEndpointParams.Direction;
if (DeviceSpeed == UsbHighSpeed)
{
return 0;
}
if (TransferType == USBPORT_TRANSFER_TYPE_INTERRUPT)
{
USB2_ConvertFrame(TtEndpoint->StartFrame,
TtEndpoint->StartMicroframe,
&HcFrame,
&HcMicroFrame);
Result = CMASKS[HcMicroFrame];
}
else
{
if (Direction == USBPORT_TRANSFER_DIRECTION_OUT)
{
return 0;
}
USB2_ConvertFrame(TtEndpoint->StartFrame,
TtEndpoint->StartMicroframe,
&HcFrame,
&HcMicroFrame);
NumCompletes = TtEndpoint->Nums.NumCompletes;
for (MicroFrameCS = HcMicroFrame + 2;
MicroFrameCS < USB2_MICROFRAMES;
MicroFrameCS++)
{
MaskCS |= (1 << MicroFrameCS);
NumCompletes--;
if (!NumCompletes)
{
return MaskCS;
}
}
for (; NumCompletes; NumCompletes--)
{
MaskCS |= (1 << (MicroFrameCS - USB2_MICROFRAMES));
}
Result = MaskCS;
}
return Result;
}
BOOLEAN BOOLEAN
NTAPI NTAPI
USB2_DeallocateEndpointBudget(IN PUSB2_TT_ENDPOINT TtEndpoint, USB2_DeallocateEndpointBudget(IN PUSB2_TT_ENDPOINT TtEndpoint,