/*++Copyright (c) 1997-2000 Microsoft Corporation All Rights Reserved Module Name: mintopo.cpp Abstract: Implementation of topology miniport.--*/ #pragma warning (disable : 4127) #include "scream.h"#include "common.h"#include "minwave.h"#include "mintopo.h"#include "toptable.h" PHYSICALCONNECTIONTABLE TopologyPhysicalConnections ={ KSPIN_TOPO_WAVEOUT_SOURCE, // TopologyIn (ULONG)-1, (ULONG)-1, KSPIN_WAVE_RENDER_SOURCE // WaveOut}; #pragma code_seg("PAGE") //=============================================================================NTSTATUS CreateMiniportTopologyMSVAD ( OUT PUNKNOWN* Unknown, IN REFCLSID, IN PUNKNOWN UnknownOuter OPTIONAL, IN POOL_TYPE PoolType )/*++Routine Description: Creates a new topology miniport. Arguments: Unknown - RefclsId - UnknownOuter - PoolType - Return Value: NT status code.--*/{ PAGED_CODE(); ASSERT(Unknown); STD_CREATE_BODY(CMiniportTopology, Unknown, UnknownOuter, PoolType);} // CreateMiniportTopologyMSVAD //=============================================================================CMiniportTopology::CMiniportTopology(PUNKNOWN outer) : CUnknown(outer)/*++Routine Description: Topology miniport constructor Arguments: Return Value: void--*/{ PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); m_AdapterCommon = NULL; m_FilterDescriptor = NULL;} // CMiniportTopology CMiniportTopology::~CMiniportTopology(void)/*++Routine Description: Topology miniport destructor Arguments: Return Value: NT status code.--*/{ PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); if (m_AdapterCommon) { m_AdapterCommon->Release(); }} // ~CMiniportTopology //=============================================================================NTSTATUS CMiniportTopology::DataRangeIntersection( IN ULONG PinId, IN PKSDATARANGE ClientDataRange, IN PKSDATARANGE MyDataRange, IN ULONG OutputBufferLength, OUT PVOID ResultantFormat OPTIONAL, 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. 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 that is placed at ResultantFormat. This should be less than or equal to OutputBufferLength. Return Value: NT status code.--*/{ UNREFERENCED_PARAMETER(PinId); UNREFERENCED_PARAMETER(ClientDataRange); UNREFERENCED_PARAMETER(MyDataRange); UNREFERENCED_PARAMETER(OutputBufferLength); UNREFERENCED_PARAMETER(ResultantFormat); UNREFERENCED_PARAMETER(ResultantFormatLength); PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); return (STATUS_NOT_IMPLEMENTED);} // DataRangeIntersection //=============================================================================STDMETHODIMP CMiniportTopology::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(("[%s]",__FUNCTION__)); *OutFilterDescriptor = m_FilterDescriptor; return (STATUS_SUCCESS);} // GetDescription //=============================================================================STDMETHODIMP CMiniportTopology::Init( IN PUNKNOWN UnknownAdapter, IN PRESOURCELIST ResourceList, IN PPORTTOPOLOGY 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.--*/{ UNREFERENCED_PARAMETER(ResourceList); UNREFERENCED_PARAMETER(Port_); PAGED_CODE(); ASSERT(UnknownAdapter); ASSERT(Port_); DPF_ENTER(("[CMiniportTopology::Init]")); NTSTATUS ntStatus; ntStatus = UnknownAdapter->QueryInterface(IID_IAdapterCommon, (PVOID *) &m_AdapterCommon); if (NT_SUCCESS(ntStatus)) { m_AdapterCommon->MixerReset(); m_FilterDescriptor = &MiniportFilterDescriptor; } else { // clean up AdapterCommon if (m_AdapterCommon) { m_AdapterCommon->Release(); m_AdapterCommon = NULL; } } return ntStatus;} // Init //=============================================================================STDMETHODIMP CMiniportTopology::NonDelegatingQueryInterface( IN REFIID Interface, OUT PVOID* Object )/*++Routine Description: QueryInterface for MiniportTopology Arguments: Interface - GUID of the interface Object - interface object to be returned. Return Value: NT status code.--*/{ PAGED_CODE(); ASSERT(Object); if (IsEqualGUIDAligned(Interface, IID_IUnknown)) { *Object = PVOID(PUNKNOWN(this)); } else if (IsEqualGUIDAligned(Interface, IID_IMiniport)) { *Object = PVOID(PMINIPORT(this)); } else if (IsEqualGUIDAligned(Interface, IID_IMiniportTopology)) { *Object = PVOID(PMINIPORTTOPOLOGY(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 CMiniportTopology::PropertyHandlerBasicSupportVolume(IN PPCPROPERTY_REQUEST PropertyRequest)/*++Routine Description: Handles BasicSupport for Volume nodes. Arguments: PropertyRequest - property request structure Return Value: NT status code.--*/{ PAGED_CODE(); NTSTATUS ntStatus = STATUS_SUCCESS; ULONG cbFullProperty = sizeof(KSPROPERTY_DESCRIPTION) + sizeof(KSPROPERTY_MEMBERSHEADER) + sizeof(KSPROPERTY_STEPPING_LONG); if (PropertyRequest->ValueSize >= (sizeof(KSPROPERTY_DESCRIPTION))) { PKSPROPERTY_DESCRIPTION PropDesc = PKSPROPERTY_DESCRIPTION(PropertyRequest->Value); PropDesc->AccessFlags = KSPROPERTY_TYPE_ALL; PropDesc->DescriptionSize = cbFullProperty; PropDesc->PropTypeSet.Set = KSPROPTYPESETID_General; PropDesc->PropTypeSet.Id = VT_I4; PropDesc->PropTypeSet.Flags = 0; PropDesc->MembersListCount = 1; PropDesc->Reserved = 0; // if return buffer can also hold a range description, return it too if(PropertyRequest->ValueSize >= cbFullProperty) { // fill in the members header PKSPROPERTY_MEMBERSHEADER Members = PKSPROPERTY_MEMBERSHEADER(PropDesc + 1); Members->MembersFlags = KSPROPERTY_MEMBER_STEPPEDRANGES; Members->MembersSize = sizeof(KSPROPERTY_STEPPING_LONG); Members->MembersCount = 1; Members->Flags = KSPROPERTY_MEMBER_FLAG_BASICSUPPORT_MULTICHANNEL; // fill in the stepped range PKSPROPERTY_STEPPING_LONG Range = PKSPROPERTY_STEPPING_LONG(Members + 1); Range->Bounds.SignedMaximum = 0x00000000; // 0 dB Range->Bounds.SignedMinimum = -96 * 0x10000; // -96 dB Range->SteppingDelta = 0x08000; // .5 dB Range->Reserved = 0; // set the return value size PropertyRequest->ValueSize = cbFullProperty; } else { PropertyRequest->ValueSize = sizeof(KSPROPERTY_DESCRIPTION); } } else if(PropertyRequest->ValueSize >= sizeof(ULONG)) { // if return buffer can hold a ULONG, return the access flags PULONG AccessFlags = PULONG(PropertyRequest->Value); PropertyRequest->ValueSize = sizeof(ULONG); *AccessFlags = KSPROPERTY_TYPE_ALL; } else { PropertyRequest->ValueSize = 0; ntStatus = STATUS_BUFFER_TOO_SMALL; } return ntStatus;} // PropertyHandlerBasicSupportVolume //=============================================================================NTSTATUS CMiniportTopology::PropertyHandlerCpuResources(IN PPCPROPERTY_REQUEST PropertyRequest)/*++Routine Description: Processes KSPROPERTY_AUDIO_CPURESOURCES Arguments: PropertyRequest - property request structure Return Value: NT status code.--*/{ PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST; if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) { ntStatus = PropertyHandler_BasicSupport(PropertyRequest, KSPROPERTY_TYPE_GET | KSPROPERTY_TYPE_BASICSUPPORT, VT_ILLEGAL); } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) { ntStatus = ValidatePropertyParams(PropertyRequest, sizeof(ULONG)); if (NT_SUCCESS(ntStatus)) { *(PLONG(PropertyRequest->Value)) = KSAUDIO_CPU_RESOURCES_HOST_CPU; PropertyRequest->ValueSize = sizeof(LONG); } } return ntStatus;} // PropertyHandlerCpuResources //=============================================================================NTSTATUS CMiniportTopology::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(); NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST; switch (PropertyRequest->PropertyItem->Id) { case KSPROPERTY_AUDIO_VOLUMELEVEL: ntStatus = PropertyHandlerVolume(PropertyRequest); break; case KSPROPERTY_AUDIO_CPU_RESOURCES: ntStatus = PropertyHandlerCpuResources(PropertyRequest); break; case KSPROPERTY_AUDIO_MUTE: ntStatus = PropertyHandlerMute(PropertyRequest); break; case KSPROPERTY_AUDIO_MUX_SOURCE: ntStatus = PropertyHandlerMuxSource(PropertyRequest); break; case KSPROPERTY_AUDIO_DEV_SPECIFIC: ntStatus = PropertyHandlerDevSpecific(PropertyRequest); break; default: DPF(D_TERSE, ("[PropertyHandlerGeneric: Invalid Device Request]")); } return ntStatus;} // PropertyHandlerGeneric //=============================================================================NTSTATUS CMiniportTopology::PropertyHandlerMute(IN PPCPROPERTY_REQUEST PropertyRequest)/*++Routine Description: Property handler for KSPROPERTY_AUDIO_MUTE Arguments: PropertyRequest - property request structure Return Value: NT status code.--*/{ PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); NTSTATUS ntStatus; LONG lChannel; PBOOL pfMute; if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) { ntStatus = PropertyHandler_BasicSupport(PropertyRequest, KSPROPERTY_TYPE_ALL, VT_BOOL); } else { ntStatus = ValidatePropertyParams(PropertyRequest, sizeof(BOOL), sizeof(LONG)); if (NT_SUCCESS(ntStatus)) { lChannel = * PLONG (PropertyRequest->Instance); pfMute = PBOOL (PropertyRequest->Value); if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) { *pfMute = m_AdapterCommon->MixerMuteRead(PropertyRequest->Node); PropertyRequest->ValueSize = sizeof(BOOL); } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_SET) { m_AdapterCommon->MixerMuteWrite(PropertyRequest->Node, *pfMute); } } else { DPF(D_TERSE, ("[%s - ntStatus=0x%08x]", __FUNCTION__, ntStatus)); } } return ntStatus;} // PropertyHandlerMute //=============================================================================NTSTATUS CMiniportTopology::PropertyHandlerMuxSource(IN PPCPROPERTY_REQUEST PropertyRequest)/*++Routine Description: PropertyHandler for KSPROPERTY_AUDIO_MUX_SOURCE. Arguments: PropertyRequest - property request structure Return Value: NT status code.--*/{ PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST; // // Validate node // This property is only valid for WAVEIN_MUX node. // // TODO if (WAVEIN_MUX == PropertyRequest->Node) { if (PropertyRequest->ValueSize >= sizeof(ULONG)) { PULONG pulMuxValue = PULONG(PropertyRequest->Value); if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) { *pulMuxValue = m_AdapterCommon->MixerMuxRead(); PropertyRequest->ValueSize = sizeof(ULONG); ntStatus = STATUS_SUCCESS; } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_SET) { m_AdapterCommon->MixerMuxWrite(*pulMuxValue); ntStatus = STATUS_SUCCESS; } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) { ntStatus = PropertyHandler_BasicSupport(PropertyRequest, KSPROPERTY_TYPE_ALL, VT_I4); } } else { DPF(D_TERSE, ("[PropertyHandlerMuxSource - Invalid parameter]")); ntStatus = STATUS_INVALID_PARAMETER; } } return ntStatus;} // PropertyHandlerMuxSource //=============================================================================NTSTATUS CMiniportTopology::PropertyHandlerVolume(IN PPCPROPERTY_REQUEST PropertyRequest)/*++Routine Description: Property handler for KSPROPERTY_AUDIO_VOLUMELEVEL Arguments: PropertyRequest - property request structure Return Value:Lines 1–500 of 809. 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/*++ Copyright (c) 1997-2000 Microsoft Corporation All Rights Reserved Module Name: mintopo.cpp Abstract: Implementation of topology miniport. --*/ #pragma warning (disable : 4127) #include "scream.h" #include "common.h" #include "minwave.h" #include "mintopo.h" #include "toptable.h" PHYSICALCONNECTIONTABLE TopologyPhysicalConnections = { KSPIN_TOPO_WAVEOUT_SOURCE, // TopologyIn (ULONG)-1, (ULONG)-1, KSPIN_WAVE_RENDER_SOURCE // WaveOut }; #pragma code_seg("PAGE") //============================================================================= NTSTATUS CreateMiniportTopologyMSVAD ( OUT PUNKNOWN* Unknown, IN REFCLSID, IN PUNKNOWN UnknownOuter OPTIONAL, IN POOL_TYPE PoolType ) /*++ Routine Description: Creates a new topology miniport. Arguments: Unknown - RefclsId - UnknownOuter - PoolType - Return Value: NT status code. --*/ { PAGED_CODE(); ASSERT(Unknown); STD_CREATE_BODY(CMiniportTopology, Unknown, UnknownOuter, PoolType); } // CreateMiniportTopologyMSVAD //============================================================================= CMiniportTopology::CMiniportTopology(PUNKNOWN outer) : CUnknown(outer) /*++ Routine Description: Topology miniport constructor Arguments: Return Value: void --*/ { PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); m_AdapterCommon = NULL; m_FilterDescriptor = NULL; } // CMiniportTopology CMiniportTopology::~CMiniportTopology(void) /*++ Routine Description: Topology miniport destructor Arguments: Return Value: NT status code. --*/ { PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); if (m_AdapterCommon) { m_AdapterCommon->Release(); } } // ~CMiniportTopology //============================================================================= NTSTATUS CMiniportTopology::DataRangeIntersection( IN ULONG PinId, IN PKSDATARANGE ClientDataRange, IN PKSDATARANGE MyDataRange, IN ULONG OutputBufferLength, OUT PVOID ResultantFormat OPTIONAL, 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. 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 that is placed at ResultantFormat. This should be less than or equal to OutputBufferLength. Return Value: NT status code. --*/ { UNREFERENCED_PARAMETER(PinId); UNREFERENCED_PARAMETER(ClientDataRange); UNREFERENCED_PARAMETER(MyDataRange); UNREFERENCED_PARAMETER(OutputBufferLength); UNREFERENCED_PARAMETER(ResultantFormat); UNREFERENCED_PARAMETER(ResultantFormatLength); PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); return (STATUS_NOT_IMPLEMENTED); } // DataRangeIntersection //============================================================================= STDMETHODIMP CMiniportTopology::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(("[%s]",__FUNCTION__)); *OutFilterDescriptor = m_FilterDescriptor; return (STATUS_SUCCESS); } // GetDescription //============================================================================= STDMETHODIMP CMiniportTopology::Init( IN PUNKNOWN UnknownAdapter, IN PRESOURCELIST ResourceList, IN PPORTTOPOLOGY 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. --*/ { UNREFERENCED_PARAMETER(ResourceList); UNREFERENCED_PARAMETER(Port_); PAGED_CODE(); ASSERT(UnknownAdapter); ASSERT(Port_); DPF_ENTER(("[CMiniportTopology::Init]")); NTSTATUS ntStatus; ntStatus = UnknownAdapter->QueryInterface(IID_IAdapterCommon, (PVOID *) &m_AdapterCommon); if (NT_SUCCESS(ntStatus)) { m_AdapterCommon->MixerReset(); m_FilterDescriptor = &MiniportFilterDescriptor; } else { // clean up AdapterCommon if (m_AdapterCommon) { m_AdapterCommon->Release(); m_AdapterCommon = NULL; } } return ntStatus; } // Init //============================================================================= STDMETHODIMP CMiniportTopology::NonDelegatingQueryInterface( IN REFIID Interface, OUT PVOID* Object ) /*++ Routine Description: QueryInterface for MiniportTopology Arguments: Interface - GUID of the interface Object - interface object to be returned. Return Value: NT status code. --*/ { PAGED_CODE(); ASSERT(Object); if (IsEqualGUIDAligned(Interface, IID_IUnknown)) { *Object = PVOID(PUNKNOWN(this)); } else if (IsEqualGUIDAligned(Interface, IID_IMiniport)) { *Object = PVOID(PMINIPORT(this)); } else if (IsEqualGUIDAligned(Interface, IID_IMiniportTopology)) { *Object = PVOID(PMINIPORTTOPOLOGY(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 CMiniportTopology::PropertyHandlerBasicSupportVolume(IN PPCPROPERTY_REQUEST PropertyRequest) /*++ Routine Description: Handles BasicSupport for Volume nodes. Arguments: PropertyRequest - property request structure Return Value: NT status code. --*/ { PAGED_CODE(); NTSTATUS ntStatus = STATUS_SUCCESS; ULONG cbFullProperty = sizeof(KSPROPERTY_DESCRIPTION) + sizeof(KSPROPERTY_MEMBERSHEADER) + sizeof(KSPROPERTY_STEPPING_LONG); if (PropertyRequest->ValueSize >= (sizeof(KSPROPERTY_DESCRIPTION))) { PKSPROPERTY_DESCRIPTION PropDesc = PKSPROPERTY_DESCRIPTION(PropertyRequest->Value); PropDesc->AccessFlags = KSPROPERTY_TYPE_ALL; PropDesc->DescriptionSize = cbFullProperty; PropDesc->PropTypeSet.Set = KSPROPTYPESETID_General; PropDesc->PropTypeSet.Id = VT_I4; PropDesc->PropTypeSet.Flags = 0; PropDesc->MembersListCount = 1; PropDesc->Reserved = 0; // if return buffer can also hold a range description, return it too if(PropertyRequest->ValueSize >= cbFullProperty) { // fill in the members header PKSPROPERTY_MEMBERSHEADER Members = PKSPROPERTY_MEMBERSHEADER(PropDesc + 1); Members->MembersFlags = KSPROPERTY_MEMBER_STEPPEDRANGES; Members->MembersSize = sizeof(KSPROPERTY_STEPPING_LONG); Members->MembersCount = 1; Members->Flags = KSPROPERTY_MEMBER_FLAG_BASICSUPPORT_MULTICHANNEL; // fill in the stepped range PKSPROPERTY_STEPPING_LONG Range = PKSPROPERTY_STEPPING_LONG(Members + 1); Range->Bounds.SignedMaximum = 0x00000000; // 0 dB Range->Bounds.SignedMinimum = -96 * 0x10000; // -96 dB Range->SteppingDelta = 0x08000; // .5 dB Range->Reserved = 0; // set the return value size PropertyRequest->ValueSize = cbFullProperty; } else { PropertyRequest->ValueSize = sizeof(KSPROPERTY_DESCRIPTION); } } else if(PropertyRequest->ValueSize >= sizeof(ULONG)) { // if return buffer can hold a ULONG, return the access flags PULONG AccessFlags = PULONG(PropertyRequest->Value); PropertyRequest->ValueSize = sizeof(ULONG); *AccessFlags = KSPROPERTY_TYPE_ALL; } else { PropertyRequest->ValueSize = 0; ntStatus = STATUS_BUFFER_TOO_SMALL; } return ntStatus; } // PropertyHandlerBasicSupportVolume //============================================================================= NTSTATUS CMiniportTopology::PropertyHandlerCpuResources(IN PPCPROPERTY_REQUEST PropertyRequest) /*++ Routine Description: Processes KSPROPERTY_AUDIO_CPURESOURCES Arguments: PropertyRequest - property request structure Return Value: NT status code. --*/ { PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST; if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) { ntStatus = PropertyHandler_BasicSupport(PropertyRequest, KSPROPERTY_TYPE_GET | KSPROPERTY_TYPE_BASICSUPPORT, VT_ILLEGAL); } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) { ntStatus = ValidatePropertyParams(PropertyRequest, sizeof(ULONG)); if (NT_SUCCESS(ntStatus)) { *(PLONG(PropertyRequest->Value)) = KSAUDIO_CPU_RESOURCES_HOST_CPU; PropertyRequest->ValueSize = sizeof(LONG); } } return ntStatus; } // PropertyHandlerCpuResources //============================================================================= NTSTATUS CMiniportTopology::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(); NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST; switch (PropertyRequest->PropertyItem->Id) { case KSPROPERTY_AUDIO_VOLUMELEVEL: ntStatus = PropertyHandlerVolume(PropertyRequest); break; case KSPROPERTY_AUDIO_CPU_RESOURCES: ntStatus = PropertyHandlerCpuResources(PropertyRequest); break; case KSPROPERTY_AUDIO_MUTE: ntStatus = PropertyHandlerMute(PropertyRequest); break; case KSPROPERTY_AUDIO_MUX_SOURCE: ntStatus = PropertyHandlerMuxSource(PropertyRequest); break; case KSPROPERTY_AUDIO_DEV_SPECIFIC: ntStatus = PropertyHandlerDevSpecific(PropertyRequest); break; default: DPF(D_TERSE, ("[PropertyHandlerGeneric: Invalid Device Request]")); } return ntStatus; } // PropertyHandlerGeneric //============================================================================= NTSTATUS CMiniportTopology::PropertyHandlerMute(IN PPCPROPERTY_REQUEST PropertyRequest) /*++ Routine Description: Property handler for KSPROPERTY_AUDIO_MUTE Arguments: PropertyRequest - property request structure Return Value: NT status code. --*/ { PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); NTSTATUS ntStatus; LONG lChannel; PBOOL pfMute; if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) { ntStatus = PropertyHandler_BasicSupport(PropertyRequest, KSPROPERTY_TYPE_ALL, VT_BOOL); } else { ntStatus = ValidatePropertyParams(PropertyRequest, sizeof(BOOL), sizeof(LONG)); if (NT_SUCCESS(ntStatus)) { lChannel = * PLONG (PropertyRequest->Instance); pfMute = PBOOL (PropertyRequest->Value); if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) { *pfMute = m_AdapterCommon->MixerMuteRead(PropertyRequest->Node); PropertyRequest->ValueSize = sizeof(BOOL); } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_SET) { m_AdapterCommon->MixerMuteWrite(PropertyRequest->Node, *pfMute); } } else { DPF(D_TERSE, ("[%s - ntStatus=0x%08x]", __FUNCTION__, ntStatus)); } } return ntStatus; } // PropertyHandlerMute //============================================================================= NTSTATUS CMiniportTopology::PropertyHandlerMuxSource(IN PPCPROPERTY_REQUEST PropertyRequest) /*++ Routine Description: PropertyHandler for KSPROPERTY_AUDIO_MUX_SOURCE. Arguments: PropertyRequest - property request structure Return Value: NT status code. --*/ { PAGED_CODE(); DPF_ENTER(("[%s]",__FUNCTION__)); NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST; // // Validate node // This property is only valid for WAVEIN_MUX node. // // TODO if (WAVEIN_MUX == PropertyRequest->Node) { if (PropertyRequest->ValueSize >= sizeof(ULONG)) { PULONG pulMuxValue = PULONG(PropertyRequest->Value); if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) { *pulMuxValue = m_AdapterCommon->MixerMuxRead(); PropertyRequest->ValueSize = sizeof(ULONG); ntStatus = STATUS_SUCCESS; } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_SET) { m_AdapterCommon->MixerMuxWrite(*pulMuxValue); ntStatus = STATUS_SUCCESS; } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) { ntStatus = PropertyHandler_BasicSupport(PropertyRequest, KSPROPERTY_TYPE_ALL, VT_I4); } } else { DPF(D_TERSE, ("[PropertyHandlerMuxSource - Invalid parameter]")); ntStatus = STATUS_INVALID_PARAMETER; } } return ntStatus; } // PropertyHandlerMuxSource //============================================================================= NTSTATUS CMiniportTopology::PropertyHandlerVolume(IN PPCPROPERTY_REQUEST PropertyRequest) /*++ Routine Description: Property handler for KSPROPERTY_AUDIO_VOLUMELEVEL Arguments: PropertyRequest - property request structure Return Value: