wavecyclicstream.cpp File Reference

#include "wavecyclicminiport.h"
#include "wavecyclicstream.h"

Include dependency graph for wavecyclicstream.cpp:

Go to the source code of this file.

Macros
#define	STR_MODULENAME   "AC97 Cyclic Stream: "
#define	BUFFERTIME   10
#define	NBUFFERS   4

Functions
	IMP_CMiniportStream_QueryInterface (CMiniportWaveCyclicStream, IMiniportWavePciStream)
	IMP_CMiniport_SetState (CMiniportWaveCyclicStream)
NTSTATUS	CreateMiniportWaveCyclicStream (OUT CMiniportWaveCyclicStream **MiniportCyclicStream, IN PUNKNOWN pUnknownOuter, _When_((PoolType &NonPagedPoolMustSucceed) !=0, __drv_reportError("Must succeed pool allocations are forbidden. " "Allocation failures cause a system crash")) IN POOL_TYPE PoolType)
	STDMETHODIMP_ (NTSTATUS) CMiniportWaveCyclicStream
	STDMETHODIMP_ (ULONG) CMiniportWaveCyclicStream
	IMP_CMiniport_NormalizePhysicalPosition (CMiniportWaveCyclicStream)
	STDMETHODIMP_ (void) CMiniportWaveCyclicStream

Macro Definition Documentation

BUFFERTIME

#define BUFFERTIME   10

Definition at line 13 of file wavecyclicstream.cpp.

NBUFFERS

#define NBUFFERS   4

Definition at line 14 of file wavecyclicstream.cpp.

STR_MODULENAME

#define STR_MODULENAME   "AC97 Cyclic Stream: "

Definition at line 9 of file wavecyclicstream.cpp.

Function Documentation

CreateMiniportWaveCyclicStream()

NTSTATUS CreateMiniportWaveCyclicStream	(	OUT CMiniportWaveCyclicStream **	MiniportCyclicStream,
		IN PUNKNOWN	pUnknownOuter,
		_When_((PoolType &NonPagedPoolMustSucceed) !=0, __drv_reportError("Must succeed pool allocations are forbidden. " "Allocation failures cause a system crash")) IN POOL_TYPE	PoolType
	)

Definition at line 39 of file wavecyclicstream.cpp.

{
    PAGED_CODE ();
 
    DOUT (DBG_PRINT, ("[CreateMiniportWaveCyclicStream]"));
 
    //
    // This is basically like the macro at stdunk with the change that we
    // don't cast to interface unknown but to interface MiniportIchStream.
    //
    *MiniportCyclicStream = new (PoolType, PoolTag)
                        CMiniportWaveCyclicStream (pUnknownOuter);
    if (*MiniportCyclicStream)
    {
        (*MiniportCyclicStream)->AddRef ();
        return STATUS_SUCCESS;
    }
 
    return STATUS_INSUFFICIENT_RESOURCES;
}

IMP_CMiniport_NormalizePhysicalPosition()

IMP_CMiniport_NormalizePhysicalPosition

(

CMiniportWaveCyclicStream

)

IMP_CMiniport_SetState()

IMP_CMiniport_SetState

(

CMiniportWaveCyclicStream

)

IMP_CMiniportStream_QueryInterface()

IMP_CMiniportStream_QueryInterface	(	CMiniportWaveCyclicStream	,
		IMiniportWavePciStream
	)

STDMETHODIMP_() [1/3]

STDMETHODIMP_

(

NTSTATUS

)

Definition at line 113 of file wavecyclicstream.cpp.

{
    NTSTATUS ntStatus = CMiniportStream::SetFormat(Format);
    if (!NT_SUCCESS (ntStatus))
        return ntStatus;
    return ResizeBuffer();
}

STDMETHODIMP_() [2/3]

STDMETHODIMP_

(

ULONG

)

Definition at line 161 of file wavecyclicstream.cpp.

{
  *FrameSize = m_bufferSize;
  return BUFFERTIME;
}

STDMETHODIMP_() [3/3]

STDMETHODIMP_

(

void

)

Definition at line 182 of file wavecyclicstream.cpp.

{
    memset(Buffer, 0, ByteCount);
}