port.cpp

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/*
 * COPYRIGHT:       See COPYING in the top level directory
 * PROJECT:         ReactOS Kernel Streaming
 * FILE:            drivers/wdm/audio/backpln/portcls/port.cpp
 * PURPOSE:         Port construction API
 * PROGRAMMER:      Johannes Anderwald
 *                  Andrew Greenwood
 */
 
#include "private.hpp"
 
#ifndef YDEBUG
#define NDEBUG
#endif
 
#include <debug.h>
 
NTSTATUS
NTAPI
PcNewPort(
    OUT PPORT* OutPort,
    IN  REFCLSID ClassId)
{
    NTSTATUS Status;
    UNICODE_STRING GuidString;
 
    DPRINT("PcNewPort entered\n");
 
    PC_ASSERT_IRQL_EQUAL(PASSIVE_LEVEL);
 
    if (!OutPort)
    {
        DPRINT("PcNewPort was supplied a NULL OutPort parameter\n");
        return STATUS_INVALID_PARAMETER;
    }
 
    if (IsEqualGUIDAligned(ClassId, CLSID_PortMidi))
        Status = NewPortDMus(OutPort);
    else if (IsEqualGUIDAligned(ClassId, CLSID_PortDMus))
        Status = NewPortDMus(OutPort);
    else if (IsEqualGUIDAligned(ClassId, CLSID_PortTopology))
        Status = NewPortTopology(OutPort);
    else if (IsEqualGUIDAligned(ClassId, CLSID_PortWaveCyclic))
        Status = NewPortWaveCyclic(OutPort);
    else if (IsEqualGUIDAligned(ClassId, CLSID_PortWavePci))
        Status = NewPortWavePci(OutPort);
    else if (IsEqualGUIDAligned(ClassId, CLSID_PortWaveRT))
        Status = NewPortWaveRT(OutPort);
    else
    {
 
        if (RtlStringFromGUID(ClassId, &GuidString) == STATUS_SUCCESS)
        {
            DPRINT("unknown interface %S\n", GuidString.Buffer);
            RtlFreeUnicodeString(&GuidString);
        }
 
        Status = STATUS_NOT_SUPPORTED;
        return Status;
     }
    DPRINT("PcNewPort Status %lx\n", Status);
 
    return Status;
}