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rtsdwave.cpp
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rtsdwave.cpp
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/*
Module Name:
rtsdwave.cpp
Abstract:
Implementation of wavecyclic miniport.
*/
#include "rtsdaudio.h"
#include "common.h"
#include "rtsdwave.h"
#include "rtsdwavestream.h"
#include "wavtable.h"
#pragma code_seg("PAGE")
//=============================================================================
// CMiniportWaveCyclic
//=============================================================================
//=============================================================================
NTSTATUS CreateMiniportWaveCyclic(
OUT PUNKNOWN * Unknown,
IN REFCLSID,
IN PUNKNOWN UnknownOuter OPTIONAL,
IN POOL_TYPE PoolType
)
/*
Routine Description:
Create the wavecyclic miniport.
Arguments:
Unknown -
RefClsId -
UnknownOuter -
PoolType -
Return Value:
NT status code.
*/
{
PAGED_CODE();
ASSERT(Unknown);
STD_CREATE_BODY(CMiniportWaveCyclic, Unknown, UnknownOuter, PoolType);
}
//=============================================================================
CMiniportWaveCyclic::~CMiniportWaveCyclic(void)
/*
Routine Description:
Destructor for wavecyclic miniport
Arguments:
Return Value:
NT status code.
*/
{
PAGED_CODE();
DPF_ENTER(("[CMiniportWaveCyclic::~CMiniportWaveCyclic]"));
if (m_Port)
m_Port->Release();
if (m_ServiceGroup)
m_ServiceGroup->Release();
if (m_AdapterCommon)
m_AdapterCommon->Release();
}
//=============================================================================
STDMETHODIMP_(NTSTATUS) CMiniportWaveCyclic::DataRangeIntersection(
IN ULONG PinId,
IN PKSDATARANGE ClientDataRange,
IN PKSDATARANGE MyDataRange,
IN ULONG OutputBufferLength,
OUT PVOID ResultantFormat,
OUT PULONG ResultantFormatLength
)
/*
Routine Description:
The DataRangeIntersection function determines the highest quality
intersection of two data ranges.
Arguments:
PinId - Pin for which data intersection is being determined.
ClientDataRange - Pointer to KSDATARANGE structure which contains the data
range submitted by client in the data range intersection
property request.
MyDataRange - Pin's data range to be compared with client's data
range. In this case we actually ignore our own data
range, because we know that we only support one range.
OutputBufferLength - Size of the buffer pointed to by the resultant format
parameter.
ResultantFormat - Pointer to value where the resultant format should be
returned.
ResultantFormatLength - Actual length of the resultant format placed in
ResultantFormat. This should be less than or equal
to OutputBufferLength.
Return Value:
NT status code.
*/
{
PAGED_CODE();
// This driver only supports PCM formats.
// Portcls will handle the request for us.
return STATUS_NOT_IMPLEMENTED;
} // DataRangeIntersection
//=============================================================================
STDMETHODIMP_(NTSTATUS) CMiniportWaveCyclic::GetDescription(OUT PPCFILTER_DESCRIPTOR * OutFilterDescriptor)
/*
Routine Description:
The GetDescription function gets a pointer to a filter description.
It provides a location to deposit a pointer in miniport's description
structure. This is the placeholder for the FromNode or ToNode fields in
connections which describe connections to the filter's pins.
Arguments:
OutFilterDescriptor - Pointer to the filter description.
Return Value:
NT status code.
*/
{
PAGED_CODE();
ASSERT(OutFilterDescriptor);
DPF_ENTER(("[CMiniportWaveCyclic::GetDescription]"));
*OutFilterDescriptor = m_FilterDescriptor;
return (STATUS_SUCCESS);
} // GetDescription
//=============================================================================
STDMETHODIMP_(NTSTATUS) CMiniportWaveCyclic::Init(
IN PUNKNOWN UnknownAdapter_,
IN PRESOURCELIST ResourceList_,
IN PPORTWAVECYCLIC Port_
)
/*
Routine Description:
The Init function initializes the miniport. Callers of this function
should run at IRQL PASSIVE_LEVEL
Arguments:
UnknownAdapter - A pointer to the Iuknown interface of the adapter object.
ResourceList - Pointer to the resource list to be supplied to the miniport
during initialization. The port driver is free to examine the
contents of the ResourceList. The port driver will not be
modify the ResourceList contents.
Port - Pointer to the topology port object that is linked with this miniport.
Return Value:
NT status code.
*/
{
PAGED_CODE();
ASSERT(UnknownAdapter_);
ASSERT(Port_);
DPF_ENTER(("[CMiniportWaveCyclic::Init]"));
NTSTATUS ntStatus;
m_AdapterCommon = NULL;
m_Port = NULL;
m_FilterDescriptor = NULL;
m_NotificationInterval = 0;
m_SamplingFrequency = 0;
m_ServiceGroup = NULL;
m_MaxDmaBufferSize = DMA_BUFFER_SIZE;
m_MaxOutputStreams = MAX_OUTPUT_STREAMS;
m_MaxInputStreams = MAX_INPUT_STREAMS;
m_MaxTotalStreams = MAX_TOTAL_STREAMS;
m_MinChannels = MIN_CHANNELS;
m_MaxChannelsPcm = MAX_CHANNELS_PCM;
m_MinBitsPerSamplePcm = MIN_BITS_PER_SAMPLE_PCM;
m_MaxBitsPerSamplePcm = MAX_BITS_PER_SAMPLE_PCM;
m_MinSampleRatePcm = MIN_SAMPLE_RATE;
m_MaxSampleRatePcm = MAX_SAMPLE_RATE;
// eigenes
myBuffer=NULL;
myBufferSize = 0;
myBufferLocked = TRUE;
myBufferWritePos = 0;
myBufferReadPos = 0;
myBufferReading = FALSE;
// eigenes
// AddRef() is required because we are keeping this pointer.
m_Port = Port_;
m_Port->AddRef();
// We want the IAdapterCommon interface on the adapter common object,
// which is given to us as a IUnknown. The QueryInterface call gives us
// an AddRefed pointer to the interface we want.
ntStatus = UnknownAdapter_->QueryInterface(IID_IAdapterCommon, (PVOID *) &m_AdapterCommon);
if (NT_SUCCESS(ntStatus)) {
KeInitializeMutex(&m_SampleRateSync, 1);
ntStatus = PcNewServiceGroup(&m_ServiceGroup, NULL);
if (NT_SUCCESS(ntStatus)) {
m_AdapterCommon->SetWaveServiceGroup(m_ServiceGroup);
}
}
if (!NT_SUCCESS(ntStatus)) {
// clean up AdapterCommon
if (m_AdapterCommon) {
// clean up the service group
if (m_ServiceGroup) {
m_AdapterCommon->SetWaveServiceGroup(NULL);
m_ServiceGroup->Release();
m_ServiceGroup = NULL;
}
m_AdapterCommon->Release();
m_AdapterCommon = NULL;
}
// release the port
m_Port->Release();
m_Port = NULL;
}
if (NT_SUCCESS(ntStatus)) {
// Set filter descriptor.
m_FilterDescriptor = &MiniportFilterDescriptor;
m_fCaptureAllocated = FALSE;
m_fRenderAllocated = FALSE;
}
return ntStatus;
} // Init
//=============================================================================
STDMETHODIMP_(NTSTATUS) CMiniportWaveCyclic::NewStream(
OUT PMINIPORTWAVECYCLICSTREAM * OutStream,
IN PUNKNOWN OuterUnknown,
IN POOL_TYPE PoolType,
IN ULONG Pin,
IN BOOLEAN Capture,
IN PKSDATAFORMAT DataFormat,
OUT PDMACHANNEL * OutDmaChannel,
OUT PSERVICEGROUP * OutServiceGroup
)
/*
Routine Description:
The NewStream function creates a new instance of a logical stream
associated with a specified physical channel. Callers of NewStream should
run at IRQL PASSIVE_LEVEL.
Arguments:
OutStream -
OuterUnknown -
PoolType -
Pin -
Capture -
DataFormat -
OutDmaChannel -
OutServiceGroup -
Return Value:
NT status code.
*/
{
PAGED_CODE();
ASSERT(OutStream);
ASSERT(DataFormat);
ASSERT(OutDmaChannel);
ASSERT(OutServiceGroup);
DPF_ENTER(("[CMiniportWaveCyclic::NewStream]"));
NTSTATUS ntStatus = STATUS_SUCCESS;
PCMiniportWaveCyclicStream stream = NULL;
// Check if we have enough streams.
if (Capture) {
if (m_fCaptureAllocated) {
DPF(D_TERSE, ("[Only one capture stream supported]"));
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
}
} else {
if (m_fRenderAllocated) {
DPF(D_TERSE, ("[Only one render stream supported]"));
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
}
}
// Determine if the format is valid.
if (NT_SUCCESS(ntStatus)) {
ntStatus = ValidateFormat(DataFormat);
}
// Instantiate a stream. Stream must be in
// NonPagedPool because of file saving.
if (NT_SUCCESS(ntStatus)) {
stream = new (NonPagedPool, RTSDAUDIO_POOLTAG) CMiniportWaveCyclicStream(OuterUnknown);
if (stream) {
stream->AddRef();
ntStatus = stream->Init(this, Pin, Capture, DataFormat);
} else {
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
}
}
if (NT_SUCCESS(ntStatus)) {
if (Capture) {
m_fCaptureAllocated = TRUE;
} else {
m_fRenderAllocated = TRUE;
}
*OutStream = PMINIPORTWAVECYCLICSTREAM(stream);
(*OutStream)->AddRef();
*OutDmaChannel = PDMACHANNEL(stream);
(*OutDmaChannel)->AddRef();
*OutServiceGroup = m_ServiceGroup;
(*OutServiceGroup)->AddRef();
// The stream, the DMA channel, and the service group have
// references now for the caller. The caller expects these
// references to be there.
}
// This is our private reference to the stream. The caller has
// its own, so we can release in any case.
if (stream)
stream->Release();
return ntStatus;
} // NewStream
//=============================================================================
STDMETHODIMP_(NTSTATUS) CMiniportWaveCyclic::NonDelegatingQueryInterface(
IN REFIID Interface,
OUT PVOID * Object
)
/*
Routine Description:
QueryInterface
Arguments:
Interface - GUID
Object - interface pointer to be returned.
Return Value:
NT status code.
*/
{
PAGED_CODE();
ASSERT(Object);
if (IsEqualGUIDAligned(Interface, IID_IUnknown)) {
*Object = PVOID(PUNKNOWN(PMINIPORTWAVECYCLIC(this)));
} else if (IsEqualGUIDAligned(Interface, IID_IMiniport)) {
*Object = PVOID(PMINIPORT(this));
} else if (IsEqualGUIDAligned(Interface, IID_IMiniportWaveCyclic)) {
*Object = PVOID(PMINIPORTWAVECYCLIC(this));
} else {
*Object = NULL;
}
if (*Object) {
// We reference the interface for the caller.
PUNKNOWN(*Object)->AddRef();
return STATUS_SUCCESS;
}
return STATUS_INVALID_PARAMETER;
} // NonDelegatingQueryInterface
//=============================================================================
NTSTATUS CMiniportWaveCyclic::PropertyHandlerComponentId(
IN PPCPROPERTY_REQUEST PropertyRequest
)
/*
Routine Description:
Handles KSPROPERTY_GENERAL_COMPONENTID
Arguments:
PropertyRequest -
Return Value:
NT status code.
*/
{
PAGED_CODE();
DPF_ENTER(("[PropertyHandlerComponentId]"));
NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST;
if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) {
ntStatus = PropertyHandler_BasicSupport(
PropertyRequest,
KSPROPERTY_TYPE_BASICSUPPORT | KSPROPERTY_TYPE_GET,
VT_ILLEGAL
);
} else {
ntStatus = ValidatePropertyParams(PropertyRequest, sizeof(KSCOMPONENTID), 0);
if (NT_SUCCESS(ntStatus)) {
if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) {
PKSCOMPONENTID pComponentId = (PKSCOMPONENTID) PropertyRequest->Value;
INIT_MMREG_MID(&pComponentId->Manufacturer, MM_MICROSOFT);
pComponentId->Product = PID_RTSDAUDIO;
pComponentId->Name = NAME_RTSDAUDIO;
pComponentId->Component = GUID_NULL; // Not used for extended caps.
pComponentId->Version = RTSDAUDIO_VERSION;
pComponentId->Revision = RTSDAUDIO_REVISION;
PropertyRequest->ValueSize = sizeof(KSCOMPONENTID);
ntStatus = STATUS_SUCCESS;
}
} else {
DPF(D_TERSE, ("[PropertyHandlerComponentId - Invalid parameter]"));
ntStatus = STATUS_INVALID_PARAMETER;
}
}
return ntStatus;
} // PropertyHandlerComponentId
//=============================================================================
NTSTATUS PropertyHandler_WaveFilter(
IN PPCPROPERTY_REQUEST PropertyRequest
)
/*
Routine Description:
Redirects general property request to miniport object
Arguments:
PropertyRequest -
Return Value:
NT status code.
*/
{
PAGED_CODE();
NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST;
PCMiniportWaveCyclic pWave = (PCMiniportWaveCyclic) PropertyRequest->MajorTarget;
switch (PropertyRequest->PropertyItem->Id) {
case KSPROPERTY_GENERAL_COMPONENTID:
ntStatus = pWave->PropertyHandlerComponentId(PropertyRequest);
break;
default:
DPF(D_TERSE, ("[PropertyHandler_WaveFilter: Invalid Device Request]"));
}
return ntStatus;
} // PropertyHandler_WaveFilter
//=============================================================================
NTSTATUS CMiniportWaveCyclic::PropertyHandlerCpuResources(
IN PPCPROPERTY_REQUEST PropertyRequest
)
/*
Routine Description:
Processes KSPROPERTY_AUDIO_CPURESOURCES
Arguments:
PropertyRequest - property request structure
Return Value:
NT status code.
*/
{
PAGED_CODE();
ASSERT(PropertyRequest);
DPF_ENTER(("[CMiniportWaveCyclic::PropertyHandlerCpuResources]"));
NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST;
if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) {
ntStatus = ValidatePropertyParams(PropertyRequest, sizeof(LONG), 0);
if (NT_SUCCESS(ntStatus)) {
*(PLONG(PropertyRequest->Value)) = KSAUDIO_CPU_RESOURCES_NOT_HOST_CPU;
PropertyRequest->ValueSize = sizeof(LONG);
ntStatus = STATUS_SUCCESS;
}
} else if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) {
ntStatus =PropertyHandler_BasicSupport(PropertyRequest, KSPROPERTY_TYPE_GET | KSPROPERTY_TYPE_BASICSUPPORT, VT_I4);
}
return ntStatus;
} // PropertyHandlerCpuResources
//=============================================================================
NTSTATUS CMiniportWaveCyclic::PropertyHandlerGeneric(
IN PPCPROPERTY_REQUEST PropertyRequest
)
/*
Routine Description:
Handles all properties for this miniport.
Arguments:
PropertyRequest - property request structure
Return Value:
NT status code.
*/
{
PAGED_CODE();
ASSERT(PropertyRequest);
ASSERT(PropertyRequest->PropertyItem);
NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST;
switch (PropertyRequest->PropertyItem->Id) {
case KSPROPERTY_AUDIO_CPU_RESOURCES:
ntStatus = PropertyHandlerCpuResources(PropertyRequest);
break;
default:
DPF(D_TERSE, ("[PropertyHandlerGeneric: Invalid Device Request]"));
ntStatus = STATUS_INVALID_DEVICE_REQUEST;
}
return ntStatus;
} // PropertyHandlerGeneric
//=============================================================================
NTSTATUS CMiniportWaveCyclic::ValidateFormat(
IN PKSDATAFORMAT pDataFormat
)
/*
Routine Description:
Validates that the given dataformat is valid.
This version of the driver only supports PCM.
Arguments:
pDataFormat - The dataformat for validation.
Return Value:
NT status code.
*/
{
PAGED_CODE();
ASSERT(pDataFormat);
DPF_ENTER(("[CMiniportWaveCyclic::ValidateFormat]"));
NTSTATUS ntStatus = STATUS_INVALID_PARAMETER;
PWAVEFORMATEX pwfx;
pwfx = GetWaveFormatEx(pDataFormat);
if (pwfx) {
if (IS_VALID_WAVEFORMATEX_GUID(&pDataFormat->SubFormat)) {
USHORT wfxID = EXTRACT_WAVEFORMATEX_ID(&pDataFormat->SubFormat);
switch (wfxID) {
case WAVE_FORMAT_PCM:
switch (pwfx->wFormatTag) {
case WAVE_FORMAT_PCM:
ntStatus = ValidatePcm(pwfx);
break;
}
break;
default:
DPF(D_TERSE, ("Invalid format EXTRACT_WAVEFORMATEX_ID!"));
break;
}
} else {
DPF(D_TERSE, ("Invalid pDataFormat->SubFormat!") );
}
}
return ntStatus;
} // ValidateFormat
//=============================================================================
NTSTATUS CMiniportWaveCyclic::ValidatePcm(
IN PWAVEFORMATEX pWfx
)
/*
Routine Description:
Given a waveformatex and format size validates that the format is in device
datarange.
Arguments:
pWfx - wave format structure.
Return Value:
NT status code.
*/
{
PAGED_CODE();
DPF_ENTER(("CMiniportWaveCyclic::ValidatePcm"));
if ( pWfx &&
(pWfx->cbSize == 0) &&
(pWfx->nChannels >= m_MinChannels) &&
(pWfx->nChannels <= m_MaxChannelsPcm) &&
(pWfx->nSamplesPerSec >= m_MinSampleRatePcm) &&
(pWfx->nSamplesPerSec <= m_MaxSampleRatePcm) &&
(pWfx->wBitsPerSample >= m_MinBitsPerSamplePcm) &&
(pWfx->wBitsPerSample <= m_MaxBitsPerSamplePcm))
{
return STATUS_SUCCESS;
}
DPF(D_TERSE, ("Invalid PCM format"));
return STATUS_INVALID_PARAMETER;
} // ValidatePcm
//=============================================================================
void TimerNotify(
IN PKDPC Dpc,
IN PVOID DeferredContext,
IN PVOID SA1,
IN PVOID SA2
)
/*
Routine Description:
Dpc routine. This simulates an interrupt service routine. The Dpc will be
called whenever CMiniportWaveCyclicStreamMSVAD::m_pTimer triggers.
Arguments:
Dpc - the Dpc object
DeferredContext - Pointer to a caller-supplied context to be passed to
the DeferredRoutine when it is called
SA1 - System argument 1
SA2 - System argument 2
Return Value:
NT status code.
*/
{
PCMiniportWaveCyclic pMiniport = (PCMiniportWaveCyclic) DeferredContext;
if (pMiniport && pMiniport->m_Port) {
pMiniport->m_Port->Notify(pMiniport->m_ServiceGroup);
}
} // TimerNotify