reactos/drivers/wdm/audio/backpln/portcls/port.cpp

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS Kernel Streaming
   4  * FILE:            drivers/wdm/audio/backpln/portcls/port.cpp
   5  * PURPOSE:         Port construction API
   6  * PROGRAMMER:      Johannes Anderwald
   7  *                  Andrew Greenwood
   8  */
   9
  10 #include "private.hpp"
  11
  12
  13
  14 NTSTATUS
  15 NTAPI
  16 PcNewPort(
  17     OUT PPORT* OutPort,
  18     IN  REFCLSID ClassId)
  19 {
  20     NTSTATUS Status;
  21     UNICODE_STRING GuidString;
  22
  23     DPRINT("PcNewPort entered\n");
  24
  25     PC_ASSERT_IRQL_EQUAL(PASSIVE_LEVEL);
  26
  27     if (!OutPort)
  28     {
  29         DPRINT("PcNewPort was supplied a NULL OutPort parameter\n");
  30         return STATUS_INVALID_PARAMETER;
  31     }
  32
  33     if (IsEqualGUIDAligned(ClassId, CLSID_PortMidi))
  34         Status = NewPortDMus(OutPort);
  35     else if (IsEqualGUIDAligned(ClassId, CLSID_PortDMus))
  36         Status = NewPortDMus(OutPort);
  37     else if (IsEqualGUIDAligned(ClassId, CLSID_PortTopology))
  38         Status = NewPortTopology(OutPort);
  39     else if (IsEqualGUIDAligned(ClassId, CLSID_PortWaveCyclic))
  40         Status = NewPortWaveCyclic(OutPort);
  41     else if (IsEqualGUIDAligned(ClassId, CLSID_PortWavePci))
  42         Status = NewPortWavePci(OutPort);
  43     else if (IsEqualGUIDAligned(ClassId, CLSID_PortWaveRT))
  44         Status = NewPortWaveRT(OutPort);
  45     else
  46     {
  47
  48         if (RtlStringFromGUID(ClassId, &GuidString) == STATUS_SUCCESS)
  49         {
  50             DPRINT("unknown interface %S\n", GuidString.Buffer);
  51             RtlFreeUnicodeString(&GuidString);
  52         }
  53
  54         Status = STATUS_NOT_SUPPORTED;
  55         return Status;
  56      }
  57     DPRINT("PcNewPort Status %lx\n", Status);
  58
  59     return Status;
  60 }