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[USBPORT] Implement USB2_RebalanceEndpoint().

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This commit is contained in:
Vadim Galyant 2017-12-15 19:01:36 +09:00 committed by Amine Khaldi
parent 522c0d3c69
commit 5ad7a2faa5
1 changed files with 84 additions and 2 deletions
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86
drivers/usb/usbport/usb2.c
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@ -877,8 +877,90 @@ NTAPI
USB2_RebalanceEndpoint(IN PDEVICE_OBJECT FdoDevice,
IN PLIST_ENTRY List)
{
DPRINT1("USB2_RebalanceEndpoint: UNIMPLEMENTED. FIXME\n");
ASSERT(FALSE);
PUSBPORT_DEVICE_EXTENSION FdoExtension;
PUSBPORT_REGISTRATION_PACKET Packet;
PUSBPORT_ENDPOINT Endpoint;
PLIST_ENTRY Entry;
ULONG AllocedBusTime;
ULONG EndpointBandwidth;
ULONG Factor;
ULONG ScheduleOffset;
ULONG Bandwidth;
ULONG n;
ULONG ix;
KIRQL OldIrql;
UCHAR NewPeriod;
UCHAR SMask;
UCHAR CMask;
FdoExtension = FdoDevice->DeviceExtension;
Packet = &FdoExtension->MiniPortInterface->Packet;
while (!IsListEmpty(List))
{
Entry = RemoveHeadList(List);
Endpoint = CONTAINING_RECORD(Entry,
USBPORT_ENDPOINT,
RebalanceLink.Flink);
DPRINT("USB2_RebalanceEndpoint: Endpoint - %p\n", Endpoint);
Endpoint->RebalanceLink.Flink = NULL;
Endpoint->RebalanceLink.Blink = NULL;
KeAcquireSpinLock(&Endpoint->EndpointSpinLock,
&Endpoint->EndpointOldIrql);
SMask = USB2_GetSMASK(Endpoint->TtEndpoint);
CMask = USB2_GetCMASK(Endpoint->TtEndpoint);
ScheduleOffset = Endpoint->TtEndpoint->StartFrame;
NewPeriod = Endpoint->TtEndpoint->ActualPeriod;
AllocedBusTime = Endpoint->TtEndpoint->CalcBusTime;
EndpointBandwidth = USB2_MICROFRAMES * AllocedBusTime;
Endpoint->EndpointProperties.InterruptScheduleMask = SMask;
Endpoint->EndpointProperties.SplitCompletionMask = CMask;
if (Endpoint->EndpointProperties.Period != NewPeriod)
{
Factor = USB2_FRAMES / Endpoint->EndpointProperties.Period;
ASSERT(Factor);
for (ix = 0; ix < Factor; ix++)
{
Bandwidth = Endpoint->EndpointProperties.UsbBandwidth;
n = Factor * Endpoint->EndpointProperties.ScheduleOffset;
Endpoint->TtExtension->Bandwidth[n + ix] += Bandwidth;
}
Endpoint->EndpointProperties.Period = NewPeriod;
Endpoint->EndpointProperties.ScheduleOffset = ScheduleOffset;
Endpoint->EndpointProperties.UsbBandwidth = EndpointBandwidth;
Factor = USB2_FRAMES / NewPeriod;
ASSERT(Factor);
for (ix = 0; ix < Factor; ix++)
{
n = Factor * ScheduleOffset;
Endpoint->TtExtension->Bandwidth[n + ix] += EndpointBandwidth;
}
}
KeAcquireSpinLock(&FdoExtension->MiniportSpinLock, &OldIrql);
Packet->RebalanceEndpoint(FdoExtension->MiniPortExt,
&Endpoint->EndpointProperties,
(PVOID)((ULONG_PTR)Endpoint + sizeof(USBPORT_ENDPOINT)));
KeReleaseSpinLock(&FdoExtension->MiniportSpinLock, OldIrql);
KeReleaseSpinLock(&Endpoint->EndpointSpinLock,
Endpoint->EndpointOldIrql);
}
}
VOID