}
else if (Feature == PORT_POWER)
{
+ LARGE_INTEGER Timeout;
+
//
// enable power
//
WRITE_REGISTER_ULONG((PULONG)((PUCHAR)m_Base + OHCI_RH_PORT_STATUS(PortId)), OHCI_RH_PORTSTATUS_PPS);
+
+ //
+ // read descriptor A for the delay data
+ //
+ Value = READ_REGISTER_ULONG((PULONG)((PUCHAR)m_Base + OHCI_RH_DESCRIPTOR_A_OFFSET));
+
+ //
+ // compute the delay
+ //
+ Timeout.QuadPart = OHCI_RH_GET_POWER_ON_TO_POWER_GOOD_TIME(Value);
+
+ //
+ // delay is multiplied by 2 ms
+ //
+ Timeout.QuadPart *= 2;
+ DPRINT1("Waiting %d milliseconds for port power up\n", Timeout.LowPart);
+
+ //
+ // convert to 100 ns units (absolute)
+ //
+ Timeout.QuadPart *= -10000;
+
+ //
+ // perform the wait
+ //
+ KeDelayExecutionThread(KernelMode, FALSE, &Timeout);
+
return STATUS_SUCCESS;
}
else if (Feature == PORT_SUSPEND)