+++ /dev/null
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS Kernel Streaming
- * FILE: drivers/wdm/audio/backpln/portcls/propertyhandler.cpp
- * PURPOSE: Pin property handler
- * PROGRAMMER: Johannes Anderwald
- */
-
-#include "private.hpp"
-
-#ifndef YDEBUG
-#define NDEBUG
-#endif
-
-#include <debug.h>
-
-NTSTATUS
-HandlePropertyInstances(
- IN PIO_STATUS_BLOCK IoStatus,
- IN PKSIDENTIFIER Request,
- IN OUT PVOID Data,
- IN PSUBDEVICE_DESCRIPTOR Descriptor,
- IN BOOL Global,
- IN ISubdevice *SubDevice)
-{
- KSPIN_CINSTANCES * Instances;
- KSP_PIN * Pin = (KSP_PIN*)Request;
- ULONG FilterNecessary, FilterCurrent, FilterPossible, GlobalCurrent, GlobalPossible;
- NTSTATUS Status;
-
- if (Pin->PinId >= Descriptor->Factory.PinDescriptorCount)
- {
- IoStatus->Information = 0;
- IoStatus->Status = STATUS_INVALID_PARAMETER;
- return STATUS_INVALID_PARAMETER;
- }
-
- Instances = (KSPIN_CINSTANCES*)Data;
-
- // check if the miniport supports the IPinCount interface
- Status = SubDevice->PinCount(Pin->PinId, &FilterNecessary, &FilterCurrent, &FilterPossible, &GlobalCurrent, &GlobalPossible);
-
- if (NT_SUCCESS(Status))
- {
- if (Global)
- {
- Instances->PossibleCount = GlobalPossible;
- Instances->CurrentCount = GlobalCurrent;
- }
- else
- {
- Instances->PossibleCount = FilterPossible;
- Instances->CurrentCount = FilterCurrent;
- }
- }
- else
- {
- if (Global)
- Instances->PossibleCount = Descriptor->Factory.Instances[Pin->PinId].MaxGlobalInstanceCount;
- else
- Instances->PossibleCount = Descriptor->Factory.Instances[Pin->PinId].MaxFilterInstanceCount;
-
- Instances->CurrentCount = Descriptor->Factory.Instances[Pin->PinId].CurrentPinInstanceCount;
- }
-
- IoStatus->Information = sizeof(KSPIN_CINSTANCES);
- IoStatus->Status = STATUS_SUCCESS;
- return STATUS_SUCCESS;
-}
-
-NTSTATUS
-HandleNecessaryPropertyInstances(
- IN PIO_STATUS_BLOCK IoStatus,
- IN PKSIDENTIFIER Request,
- IN OUT PVOID Data,
- IN PSUBDEVICE_DESCRIPTOR Descriptor,
- IN ISubdevice *SubDevice)
-{
- PULONG Result;
- KSP_PIN * Pin = (KSP_PIN*)Request;
- ULONG FilterNecessary, FilterCurrent, FilterPossible, GlobalCurrent, GlobalPossible;
- NTSTATUS Status;
-
- if (Pin->PinId >= Descriptor->Factory.PinDescriptorCount)
- {
- IoStatus->Information = 0;
- IoStatus->Status = STATUS_INVALID_PARAMETER;
- return STATUS_INVALID_PARAMETER;
- }
-
- Result = (PULONG)Data;
-
-
- // check if the miniport supports the IPinCount interface
- Status = SubDevice->PinCount(Pin->PinId, &FilterNecessary, &FilterCurrent, &FilterPossible, &GlobalCurrent, &GlobalPossible);
-
- if (NT_SUCCESS(Status))
- {
- *Result = FilterNecessary;
- }
- else
- {
- *Result = Descriptor->Factory.Instances[Pin->PinId].MinFilterInstanceCount;
- }
-
- IoStatus->Information = sizeof(ULONG);
- IoStatus->Status = STATUS_SUCCESS;
- return STATUS_SUCCESS;
-}
-
-NTSTATUS
-HandleDataIntersection(
- IN PIO_STATUS_BLOCK IoStatus,
- IN PKSIDENTIFIER Request,
- IN OUT PVOID Data,
- IN ULONG DataLength,
- IN PSUBDEVICE_DESCRIPTOR Descriptor,
- IN ISubdevice *SubDevice)
-{
- KSP_PIN * Pin = (KSP_PIN*)Request;
- PKSMULTIPLE_ITEM MultipleItem;
- PKSDATARANGE DataRange;
- NTSTATUS Status = STATUS_NO_MATCH;
- ULONG Index, Length;
-
- // Access parameters
- MultipleItem = (PKSMULTIPLE_ITEM)(Pin + 1);
- DataRange = (PKSDATARANGE)(MultipleItem + 1);
-
- for(Index = 0; Index < MultipleItem->Count; Index++)
- {
- // Call miniport's proprietary handler
- PC_ASSERT(Descriptor->Factory.KsPinDescriptor[Pin->PinId].DataRangesCount);
- PC_ASSERT(Descriptor->Factory.KsPinDescriptor[Pin->PinId].DataRanges[0]);
- Status = SubDevice->DataRangeIntersection(Pin->PinId, DataRange, (PKSDATARANGE)Descriptor->Factory.KsPinDescriptor[Pin->PinId].DataRanges[0],
- DataLength, Data, &Length);
-
- if (Status == STATUS_SUCCESS)
- {
- IoStatus->Information = Length;
- break;
- }
- DataRange = (PKSDATARANGE)((PUCHAR)DataRange + DataRange->FormatSize);
- }
-
- IoStatus->Status = Status;
- return Status;
-}
-
-NTSTATUS
-HandlePhysicalConnection(
- IN PIO_STATUS_BLOCK IoStatus,
- IN PKSIDENTIFIER Request,
- IN ULONG RequestLength,
- IN OUT PVOID Data,
- IN ULONG DataLength,
- IN PSUBDEVICE_DESCRIPTOR Descriptor)
-{
- PKSP_PIN Pin;
- PLIST_ENTRY Entry;
- //PKSPIN_PHYSICALCONNECTION Connection;
- PPHYSICAL_CONNECTION_ENTRY ConEntry;
-
- // get pin
- Pin = (PKSP_PIN)Request;
-
- if (RequestLength < sizeof(KSP_PIN))
- {
- // input buffer must be at least sizeof KSP_PIN
- DPRINT("input length too small\n");
- return STATUS_INVALID_PARAMETER;
- }
-
- if (IsListEmpty(&Descriptor->PhysicalConnectionList))
- {
- DPRINT("no connection\n");
- return STATUS_NOT_FOUND;
- }
-
- // get first item
- Entry = Descriptor->PhysicalConnectionList.Flink;
-
- do
- {
- ConEntry = (PPHYSICAL_CONNECTION_ENTRY)CONTAINING_RECORD(Entry, PHYSICAL_CONNECTION_ENTRY, Entry);
-
- if (ConEntry->FromPin == Pin->PinId)
- {
- //Connection = (PKSPIN_PHYSICALCONNECTION)Data;
- DPRINT("FoundEntry %S Size %u\n", ConEntry->Connection.SymbolicLinkName, ConEntry->Connection.Size);
- IoStatus->Information = ConEntry->Connection.Size;
-
- if (!DataLength)
- {
- IoStatus->Information = ConEntry->Connection.Size;
- return STATUS_MORE_ENTRIES;
- }
-
- if (DataLength < ConEntry->Connection.Size)
- {
- return STATUS_BUFFER_TOO_SMALL;
- }
-
- RtlMoveMemory(Data, &ConEntry->Connection, ConEntry->Connection.Size);
- return STATUS_SUCCESS;
- }
-
- // move to next item
- Entry = Entry->Flink;
- }while(Entry != &Descriptor->PhysicalConnectionList);
-
- IoStatus->Information = 0;
- return STATUS_NOT_FOUND;
-}
-
-NTSTATUS
-NTAPI
-PinPropertyHandler(
- IN PIRP Irp,
- IN PKSIDENTIFIER Request,
- IN OUT PVOID Data)
-{
- PIO_STACK_LOCATION IoStack;
- //PKSOBJECT_CREATE_ITEM CreateItem;
- PSUBDEVICE_DESCRIPTOR Descriptor;
- IIrpTarget * IrpTarget;
- IPort *Port;
- ISubdevice *SubDevice;
- PDISPATCH_CONTEXT DispatchContext;
-
- NTSTATUS Status = STATUS_UNSUCCESSFUL;
-
- Descriptor = (PSUBDEVICE_DESCRIPTOR)KSPROPERTY_ITEM_IRP_STORAGE(Irp);
- PC_ASSERT(Descriptor);
-
- // get current irp stack
- IoStack = IoGetCurrentIrpStackLocation(Irp);
-
- // get dispatch context
- DispatchContext = (PDISPATCH_CONTEXT)IoStack->FileObject->FsContext;
-
- // Get the IrpTarget
- IrpTarget = DispatchContext->Target;
- PC_ASSERT(IrpTarget);
-
- // Get the parent
- Status = IrpTarget->QueryInterface(IID_IPort, (PVOID*)&Port);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("Failed to obtain IPort interface from filter\n");
- Irp->IoStatus.Information = 0;
- Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
- return STATUS_UNSUCCESSFUL;
- }
-
- // Get private ISubdevice interface
- Status = Port->QueryInterface(IID_ISubdevice, (PVOID*)&SubDevice);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("Failed to obtain ISubdevice interface from port driver\n");
- DbgBreakPoint();
- while(TRUE);
- }
-
- // get current stack location
- IoStack = IoGetCurrentIrpStackLocation(Irp);
-
- switch(Request->Id)
- {
- case KSPROPERTY_PIN_CTYPES:
- case KSPROPERTY_PIN_DATAFLOW:
- case KSPROPERTY_PIN_DATARANGES:
- case KSPROPERTY_PIN_INTERFACES:
- case KSPROPERTY_PIN_MEDIUMS:
- case KSPROPERTY_PIN_COMMUNICATION:
- case KSPROPERTY_PIN_CATEGORY:
- case KSPROPERTY_PIN_NAME:
- case KSPROPERTY_PIN_PROPOSEDATAFORMAT:
- Status = KsPinPropertyHandler(Irp, Request, Data, Descriptor->Factory.PinDescriptorCount, Descriptor->Factory.KsPinDescriptor);
- break;
- case KSPROPERTY_PIN_GLOBALCINSTANCES:
- Status = HandlePropertyInstances(&Irp->IoStatus, Request, Data, Descriptor, TRUE, SubDevice);
- break;
- case KSPROPERTY_PIN_CINSTANCES:
- Status = HandlePropertyInstances(&Irp->IoStatus, Request, Data, Descriptor, FALSE, SubDevice);
- break;
- case KSPROPERTY_PIN_NECESSARYINSTANCES:
- Status = HandleNecessaryPropertyInstances(&Irp->IoStatus, Request, Data, Descriptor, SubDevice);
- break;
-
- case KSPROPERTY_PIN_DATAINTERSECTION:
- Status = HandleDataIntersection(&Irp->IoStatus, Request, Data, IoStack->Parameters.DeviceIoControl.OutputBufferLength, Descriptor, SubDevice);
- break;
- case KSPROPERTY_PIN_PHYSICALCONNECTION:
- Status = HandlePhysicalConnection(&Irp->IoStatus, Request, IoStack->Parameters.DeviceIoControl.InputBufferLength, Data, IoStack->Parameters.DeviceIoControl.OutputBufferLength, Descriptor);
- break;
- case KSPROPERTY_PIN_CONSTRAINEDDATARANGES:
- UNIMPLEMENTED;
- Status = STATUS_NOT_IMPLEMENTED;
- break;
- default:
- UNIMPLEMENTED;
- Status = STATUS_UNSUCCESSFUL;
- }
-
- // Release reference
- Port->Release();
-
- // Release subdevice reference
- SubDevice->Release();
-
- return Status;
-}
-
-NTSTATUS
-NTAPI
-TopologyPropertyHandler(
- IN PIRP Irp,
- IN PKSIDENTIFIER Request,
- IN OUT PVOID Data)
-{
- PSUBDEVICE_DESCRIPTOR Descriptor;
-
- Descriptor = (PSUBDEVICE_DESCRIPTOR)KSPROPERTY_ITEM_IRP_STORAGE(Irp);
-
- return KsTopologyPropertyHandler(Irp, Request, Data, Descriptor->Topology);
-}
projects / reactos.git / blobdiff