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[USBPORT] Implement USBPORT_AllocateBandwidth().

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Vadim Galyant 2017-11-28 15:02:47 +09:00 committed by Amine Khaldi
parent c6ca2a8f02
commit aae6dd6073
1 changed files with 78 additions and 9 deletions
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87
drivers/usb/usbport/endpoint.c
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@ -68,9 +68,19 @@ USBPORT_AllocateBandwidth(IN PDEVICE_OBJECT FdoDevice,
ULONG TransferType;
ULONG TotalBusBandwidth;
ULONG EndpointBandwidth;
ULONG MinBandwidth;
PULONG Bandwidth;
ULONG MaxBandwidth = 0;
ULONG ix;
ULONG Offset;
LONG ScheduleOffset = -1;
ULONG Period;
ULONG Factor;
UCHAR Bit;
DPRINT("USBPORT_AllocateBandwidth: ... \n");
DPRINT("USBPORT_AllocateBandwidth: FdoDevice - %p, Endpoint - %p\n",
FdoDevice,
Endpoint);
FdoExtension = FdoDevice->DeviceExtension;
EndpointProperties = &Endpoint->EndpointProperties;
@ -87,16 +97,75 @@ USBPORT_AllocateBandwidth(IN PDEVICE_OBJECT FdoDevice,
TotalBusBandwidth = FdoExtension->TotalBusBandwidth;
EndpointBandwidth = EndpointProperties->UsbBandwidth;
Period = EndpointProperties->Period;
Factor = USB2_FRAMES / Period;
ASSERT(Factor);
DPRINT1("USBPORT_AllocateBandwidth: FIXME. \n");
DPRINT1("USBPORT_AllocateBandwidth: Endpoint - %p, Type - %x, TotalBandwidth - %x, EpBandwidth - %x, Period - %x\n",
Endpoint,
TransferType,
TotalBusBandwidth,
EndpointBandwidth,
Period);
for (Offset = 0; Offset < Period; Offset++)
{
MinBandwidth = TotalBusBandwidth;
Bandwidth = &FdoExtension->Bandwidth[Offset * Factor];
return TRUE;
for (ix = 0; *Bandwidth >= EndpointBandwidth; ix++)
{
if (MinBandwidth > *Bandwidth)
{
MinBandwidth = *Bandwidth;
}
Bandwidth++;
if (Factor <= (ix + 1))
{
if (MinBandwidth > MaxBandwidth)
{
MaxBandwidth = MinBandwidth;
ScheduleOffset = Offset;
DPRINT("USBPORT_AllocateBandwidth: ScheduleOffset - %X\n",
ScheduleOffset);
}
break;
}
}
}
DPRINT("USBPORT_AllocateBandwidth: ScheduleOffset - %X\n", ScheduleOffset);
if (ScheduleOffset != -1)
{
EndpointProperties->ScheduleOffset = ScheduleOffset;
Bandwidth = &FdoExtension->Bandwidth[ScheduleOffset * Factor];
for (Factor = USB2_FRAMES / Period; Factor; Factor--)
{
FdoExtension->Bandwidth[ScheduleOffset * Factor] -= EndpointBandwidth;
}
if (TransferType == USBPORT_TRANSFER_TYPE_INTERRUPT)
{
for (Bit = 0x80; Bit != 0; Bit >>= 1)
{
if ((Period & Bit) != 0)
{
Period = Bit;
break;
}
}
DPRINT("USBPORT_AllocateBandwidth: FIXME AllocedInterrupt_XXms\n");
}
else
{
DPRINT("USBPORT_AllocateBandwidth: FIXME AllocedIso\n");
}
}
DPRINT("USBPORT_AllocateBandwidth: FIXME USBPORT_UpdateAllocatedBw\n");
DPRINT("USBPORT_AllocateBandwidth: ScheduleOffset - %X\n", ScheduleOffset);
return ScheduleOffset != -1;
}
VOID