- Check that all pins have been closed when the last filter reference is gone

[reactos.git] / reactos / drivers / wdm / audio / backpln / portcls / propertyhandler.c

diff --git a/reactos/drivers/wdm/audio/backpln/portcls/propertyhandler.c b/reactos/drivers/wdm/audio/backpln/portcls/propertyhandler.c
index 9131ade..5305196 100644 (file)
--- a/reactos/drivers/wdm/audio/backpln/portcls/propertyhandler.c
+++ b/reactos/drivers/wdm/audio/backpln/portcls/propertyhandler.c
@@ -15,6 +15,7 @@ FindPropertyHandler(
     IN PKSPROPERTY Property,
     IN ULONG InputBufferLength,
     IN ULONG OutputBufferLength,
+    OUT PVOID OutputBuffer,
     OUT PFNKSHANDLER *PropertyHandler);
 
 NTSTATUS
@@ -237,7 +238,7 @@ FastPropertyHandler(
     }
 
     /* property handler is used to verify input parameters */
-    Status = FindPropertyHandler(IoStatus, Descriptor, Property, PropertyLength, DataLength, &PropertyHandler);
+    Status = FindPropertyHandler(IoStatus, Descriptor, Property, PropertyLength, DataLength, Data, &PropertyHandler);
     if (!NT_SUCCESS(Status))
     {
         DPRINT("FindPropertyHandler failed with %x\n", Status);
@@ -368,9 +369,12 @@ FindPropertyHandler(
     IN PKSPROPERTY Property,
     IN ULONG InputBufferLength,
     IN ULONG OutputBufferLength,
+    OUT PVOID OutputBuffer,
     OUT PFNKSHANDLER *PropertyHandler)
 {
     ULONG Index, ItemIndex;
+    PULONG Flags;
+    PKSPROPERTY_DESCRIPTION Description;
 
     for(Index = 0; Index < Descriptor->FilterPropertySet.FreeKsPropertySetOffset; Index++)
     {
@@ -386,6 +390,48 @@ FindPropertyHandler(
                     if (Property->Flags & KSPROPERTY_TYPE_GET)
                         *PropertyHandler = Descriptor->FilterPropertySet.Properties[Index].PropertyItem[ItemIndex].GetPropertyHandler;
 
+                    if (Property->Flags & KSPROPERTY_TYPE_BASICSUPPORT)
+                    {
+                        if (sizeof(ULONG) > OutputBufferLength)
+                        {
+                            /* too small buffer */
+                            return STATUS_INVALID_PARAMETER;
+                        }
+
+                        /* get output buffer */
+                        Flags = (PULONG)OutputBuffer;
+
+                        /* clear flags */
+                        *Flags = KSPROPERTY_TYPE_BASICSUPPORT;
+
+                        if (Descriptor->FilterPropertySet.Properties[Index].PropertyItem[ItemIndex].GetSupported)
+                            *Flags |= KSPROPERTY_TYPE_GET;
+
+                        if (Descriptor->FilterPropertySet.Properties[Index].PropertyItem[ItemIndex].SetSupported)
+                            *Flags |= KSPROPERTY_TYPE_SET;
+
+                        IoStatus->Information = sizeof(ULONG);
+
+                        if (OutputBufferLength >= sizeof(KSPROPERTY_DESCRIPTION))
+                        {
+                            /* get output buffer */
+                            Description = (PKSPROPERTY_DESCRIPTION)OutputBuffer;
+
+                            /* store result */
+                            Description->DescriptionSize = sizeof(KSPROPERTY_DESCRIPTION);
+                            Description->PropTypeSet.Set = KSPROPTYPESETID_General;
+                            Description->PropTypeSet.Id = 0;
+                            Description->PropTypeSet.Flags = 0;
+                            Description->MembersListCount = 0;
+                            Description->Reserved = 0;
+
+                            IoStatus->Information = sizeof(KSPROPERTY_DESCRIPTION);
+                        }
+
+                        return STATUS_SUCCESS;
+                    }
+
+
                     if (Descriptor->FilterPropertySet.Properties[Index].PropertyItem[ItemIndex].MinProperty > InputBufferLength)
                     {
                         /* too small input buffer */
@@ -536,14 +582,14 @@ PcPropertyHandler(
         }
     }
 
-    Status = FindPropertyHandler(&Irp->IoStatus, Descriptor, Property, IoStack->Parameters.DeviceIoControl.InputBufferLength, IoStack->Parameters.DeviceIoControl.OutputBufferLength, &PropertyHandler);
-    if (PropertyHandler)
+    Status = FindPropertyHandler(&Irp->IoStatus, Descriptor, Property, IoStack->Parameters.DeviceIoControl.InputBufferLength, IoStack->Parameters.DeviceIoControl.OutputBufferLength, Irp->UserBuffer, &PropertyHandler);
+    if (NT_SUCCESS(Status) && PropertyHandler)
     {
         KSPROPERTY_ITEM_IRP_STORAGE(Irp) = (PVOID)Descriptor;
         DPRINT("Calling property handler %p\n", PropertyHandler);
         Status = PropertyHandler(Irp, Property, Irp->UserBuffer);
     }
-    else
+    else if (!NT_SUCCESS(Status))
     {
         RtlStringFromGUID(&Property->Set, &GuidString);
         DPRINT1("Unhandeled property: Set %S Id %u Flags %x InputLength %u OutputLength %u\n", GuidString.Buffer, Property->Id, Property->Flags, IoStack->Parameters.DeviceIoControl.InputBufferLength, IoStack->Parameters.DeviceIoControl.OutputBufferLength);