CPortPinDMus Class Reference

Inheritance diagram for CPortPinDMus:

Collaboration diagram for CPortPinDMus:

Public Member Functions
STDMETHODIMP	QueryInterface (REFIID InterfaceId, PVOID *Interface)
	CPortPinDMus (IUnknown *OuterUnknown)
virtual	~CPortPinDMus ()
Public Member Functions inherited from CUnknownImpl< IPortPinDMus >
	STDMETHODIMP_ (ULONG) AddRef()
	STDMETHODIMP_ (ULONG) Release()

Public Attributes
	IMP_IPortPinDMus
	IMP_IServiceSink
	IMP_IMasterClock
	IMP_IAllocatorMXF

Protected Member Functions
VOID	TransferMidiDataToDMus ()
VOID	TransferMidiData ()
Protected Member Functions inherited from CUnknownImpl< IPortPinDMus >
	CUnknownImpl ()
virtual	~CUnknownImpl ()

Protected Attributes
IPortDMus *	m_Port
IPortFilterDMus *	m_Filter
KSPIN_DESCRIPTOR *	m_KsPinDescriptor
PMINIPORTDMUS	m_Miniport
PSERVICEGROUP	m_ServiceGroup
PMXF	m_Mxf
ULONGLONG	m_SchedulePreFetch
NPAGED_LOOKASIDE_LIST	m_LookAsideEvent
NPAGED_LOOKASIDE_LIST	m_LookAsideBuffer
PMINIPORTMIDI	m_MidiMiniport
PMINIPORTMIDISTREAM	m_MidiStream
KSSTATE	m_State
PKSDATAFORMAT	m_Format
KSPIN_CONNECT *	m_ConnectDetails
DMUS_STREAM_TYPE	m_Capture
PDEVICE_OBJECT	m_DeviceObject
IIrpQueue *	m_IrpQueue
ULONG	m_TotalPackets
ULONG	m_PreCompleted
ULONG	m_PostCompleted
ULONG	m_LastTag

Detailed Description

Definition at line 17 of file pin_dmus.cpp.

Constructor & Destructor Documentation

CPortPinDMus()

CPortPinDMus::CPortPinDMus ( IUnknown *  OuterUnknown )

inline

Definition at line 27 of file pin_dmus.cpp.

{}

~CPortPinDMus()

virtual CPortPinDMus::~CPortPinDMus ( )

inlinevirtual

Definition at line 28 of file pin_dmus.cpp.

{}

Member Function Documentation

QueryInterface()

NTSTATUS NTAPI CPortPinDMus::QueryInterface	(	REFIID	InterfaceId,
		PVOID *	Interface
	)

Definition at line 300 of file pin_dmus.cpp.

{

    if (IsEqualGUIDAligned(refiid, IID_IIrpTarget) ||
        IsEqualGUIDAligned(refiid, IID_IUnknown))
    {
        *Output = PVOID(PUNKNOWN(this));
        PUNKNOWN(*Output)->AddRef();
        return STATUS_SUCCESS;
    }

    return STATUS_UNSUCCESSFUL;
}

TransferMidiData()

VOID CPortPinDMus::TransferMidiData ( )

protected

Definition at line 183 of file pin_dmus.cpp.

{
    NTSTATUS Status;
    PUCHAR Buffer;
    ULONG BufferSize;
    ULONG BytesWritten;

    do
    {
        Status = m_IrpQueue->GetMapping(&Buffer, &BufferSize);
        if (!NT_SUCCESS(Status))
        {
            return;
        }

        if (m_Capture)
        {
            Status = m_MidiStream->Read(Buffer, BufferSize, &BytesWritten);
            if (!NT_SUCCESS(Status))
            {
                DPRINT("Read failed with %x\n", Status);
                return;
            }
        }
        else
        {
            Status = m_MidiStream->Write(Buffer, BufferSize, &BytesWritten);
            if (!NT_SUCCESS(Status))
            {
                DPRINT("Write failed with %x\n", Status);
                return;
            }
        }

        if (!BytesWritten)
        {
            DPRINT("Device is busy retry later\n");
            return;
        }

        m_IrpQueue->UpdateMapping(BytesWritten);

    }while(TRUE);

}

TransferMidiDataToDMus()

VOID CPortPinDMus::TransferMidiDataToDMus ( )

protected

Definition at line 230 of file pin_dmus.cpp.

{
    NTSTATUS Status;
    PHYSICAL_ADDRESS  PhysicalAddress;
    ULONG BufferSize, Flags;
    PVOID Buffer;
    PDMUS_KERNEL_EVENT_WITH_TAG Event, LastEvent = NULL, Root = NULL;

    do
    {
        m_LastTag++;
        Status = m_IrpQueue->GetMappingWithTag(UlongToPtr(m_LastTag), &PhysicalAddress, &Buffer, &BufferSize, &Flags);
        if (!NT_SUCCESS(Status))
        {
            break;
        }

        Status = GetMessage((PDMUS_KERNEL_EVENT*)&Event);
        if (!NT_SUCCESS(Status))
            break;

        //FIXME
        //set up struct
        //Event->Event.usFlags = DMUS_KEF_EVENT_COMPLETE;
        Event->Event.cbStruct = sizeof(DMUS_KERNEL_EVENT);
        Event->Event.cbEvent = (USHORT)BufferSize;
        Event->Event.uData.pbData = (PBYTE)Buffer;


        if (!Root)
            Root = Event;
        else
            LastEvent->Event.pNextEvt = (struct _DMUS_KERNEL_EVENT *)Event;

        LastEvent = Event;
        LastEvent->Event.pNextEvt = NULL;
        LastEvent->Tag = UlongToPtr(m_LastTag);

    }while(TRUE);

    if (!Root)
    {
        return;
    }

    Status = m_Mxf->PutMessage((PDMUS_KERNEL_EVENT)Root);
    DPRINT("Status %x\n", Status);
}

Member Data Documentation

IMP_IAllocatorMXF

CPortPinDMus::IMP_IAllocatorMXF

Definition at line 25 of file pin_dmus.cpp.

IMP_IMasterClock

CPortPinDMus::IMP_IMasterClock

Definition at line 24 of file pin_dmus.cpp.

IMP_IPortPinDMus

CPortPinDMus::IMP_IPortPinDMus

Definition at line 22 of file pin_dmus.cpp.

IMP_IServiceSink

CPortPinDMus::IMP_IServiceSink

Definition at line 23 of file pin_dmus.cpp.

m_Capture

DMUS_STREAM_TYPE CPortPinDMus::m_Capture

protected

Definition at line 54 of file pin_dmus.cpp.

Referenced by TransferMidiData().

m_ConnectDetails

KSPIN_CONNECT* CPortPinDMus::m_ConnectDetails

protected

Definition at line 52 of file pin_dmus.cpp.

m_DeviceObject

PDEVICE_OBJECT CPortPinDMus::m_DeviceObject

protected

Definition at line 55 of file pin_dmus.cpp.

m_Filter

IPortFilterDMus* CPortPinDMus::m_Filter

protected

Definition at line 35 of file pin_dmus.cpp.

m_Format

PKSDATAFORMAT CPortPinDMus::m_Format

protected

Definition at line 51 of file pin_dmus.cpp.

m_IrpQueue

IIrpQueue* CPortPinDMus::m_IrpQueue

protected

Definition at line 56 of file pin_dmus.cpp.

Referenced by TransferMidiData(), and TransferMidiDataToDMus().

m_KsPinDescriptor

KSPIN_DESCRIPTOR* CPortPinDMus::m_KsPinDescriptor

protected

Definition at line 36 of file pin_dmus.cpp.

m_LastTag

ULONG CPortPinDMus::m_LastTag

protected

Definition at line 62 of file pin_dmus.cpp.

Referenced by TransferMidiDataToDMus().

m_LookAsideBuffer

NPAGED_LOOKASIDE_LIST CPortPinDMus::m_LookAsideBuffer

protected

Definition at line 44 of file pin_dmus.cpp.

m_LookAsideEvent

NPAGED_LOOKASIDE_LIST CPortPinDMus::m_LookAsideEvent

protected

Definition at line 43 of file pin_dmus.cpp.

m_MidiMiniport

PMINIPORTMIDI CPortPinDMus::m_MidiMiniport

protected

Definition at line 46 of file pin_dmus.cpp.

m_MidiStream

PMINIPORTMIDISTREAM CPortPinDMus::m_MidiStream

protected

Definition at line 47 of file pin_dmus.cpp.

Referenced by TransferMidiData().

m_Miniport

PMINIPORTDMUS CPortPinDMus::m_Miniport

protected

Definition at line 37 of file pin_dmus.cpp.

m_Mxf

PMXF CPortPinDMus::m_Mxf

protected

Definition at line 41 of file pin_dmus.cpp.

Referenced by TransferMidiDataToDMus().

m_Port

IPortDMus* CPortPinDMus::m_Port

protected

Definition at line 34 of file pin_dmus.cpp.

m_PostCompleted

ULONG CPortPinDMus::m_PostCompleted

protected

Definition at line 60 of file pin_dmus.cpp.

m_PreCompleted

ULONG CPortPinDMus::m_PreCompleted

protected

Definition at line 59 of file pin_dmus.cpp.

m_SchedulePreFetch

ULONGLONG CPortPinDMus::m_SchedulePreFetch

protected

Definition at line 42 of file pin_dmus.cpp.

m_ServiceGroup

PSERVICEGROUP CPortPinDMus::m_ServiceGroup

protected

Definition at line 39 of file pin_dmus.cpp.

m_State

KSSTATE CPortPinDMus::m_State

protected

Definition at line 50 of file pin_dmus.cpp.

m_TotalPackets

ULONG CPortPinDMus::m_TotalPackets

protected

Definition at line 58 of file pin_dmus.cpp.

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The documentation for this class was generated from the following file:

• drivers/wdm/audio/backpln/portcls/pin_dmus.cpp