[janderwald] 42279: - Implement KsAcquireControl, KsReleaseControl - Add create item for creation of pins and topology nodes - Implement pin creation handler

Author: janderwald
Date: Tue Jul 28 21:32:22 2009
New Revision: 42279

URL: http://svn.reactos.org/svn/reactos?rev=42279&view=rev
Log:
- Implement KsAcquireControl, KsReleaseControl
- Add create item for creation of pins and topology nodes
- Implement pin creation handler

Modified:
    trunk/reactos/drivers/ksfilter/ks/api.c
    trunk/reactos/drivers/ksfilter/ks/device.c
    trunk/reactos/drivers/ksfilter/ks/filter.c
    trunk/reactos/drivers/ksfilter/ks/filterfactory.c
    trunk/reactos/drivers/ksfilter/ks/ksfunc.h
    trunk/reactos/drivers/ksfilter/ks/kstypes.h
    trunk/reactos/drivers/ksfilter/ks/pin.c

Modified: trunk/reactos/drivers/ksfilter/ks/api.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/api.c?…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/api.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/api.c [iso-8859-1] Tue Jul 28 21:32:22 2009
@@ -1449,7 +1449,7 @@
 }
 
 /*
-    @unimplemented
+    @implemented
 */
 KSDDKAPI
 VOID
@@ -1457,8 +1457,32 @@
 KsAcquireControl(
     IN PVOID Object)
 {
-    UNIMPLEMENTED
-}
+    PKSBASIC_HEADER BasicHeader = (PKSBASIC_HEADER)((ULONG_PTR)Object -
sizeof(KSBASIC_HEADER));
+
+    /* sanity check */
+    ASSERT(BasicHeader->Type == KsObjectTypeFilter || BasicHeader->Type ==
KsObjectTypePin);
+
+    KeWaitForSingleObject(&BasicHeader->ControlMutex, Executive, KernelMode,
FALSE, NULL);
+
+}
+
+/*
+    @implemented
+*/
+VOID
+NTAPI
+KsReleaseControl(
+    IN PVOID  Object)
+{
+    PKSBASIC_HEADER BasicHeader = (PKSBASIC_HEADER)((ULONG_PTR)Object -
sizeof(KSBASIC_HEADER));
+
+    /* sanity check */
+    ASSERT(BasicHeader->Type == KsObjectTypeFilter || BasicHeader->Type ==
KsObjectTypePin);
+
+    KeReleaseMutex(&BasicHeader->ControlMutex, FALSE);
+}
+
+
 
 /*
     @implemented
@@ -1796,17 +1820,6 @@
 /*
     @unimplemented
 */
-VOID
-NTAPI
-KsReleaseControl(
-    IN PVOID  Object)
-{
-    UNIMPLEMENTED
-}
-
-/*
-    @unimplemented
-*/
 NTSTATUS
 NTAPI
 KsRegisterFilterWithNoKSPins(

Modified: trunk/reactos/drivers/ksfilter/ks/device.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/device…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/device.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/device.c [iso-8859-1] Tue Jul 28 21:32:22 2009
@@ -683,7 +683,6 @@
     Header->KsDevice.Descriptor = Descriptor;
     KsSetDevicePnpAndBaseObject(Header, PhysicalDeviceObject, NextDeviceObject);
 
-
     /* FIXME Power state */
 
     if (Descriptor)

Modified: trunk/reactos/drivers/ksfilter/ks/filter.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/filter…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/filter.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/filter.c [iso-8859-1] Tue Jul 28 21:32:22 2009
@@ -899,6 +899,60 @@
     return STATUS_SUCCESS;
 }
 
+NTSTATUS
+NTAPI
+IKsFilter_DispatchCreatePin(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN PIRP Irp)
+{
+    IKsFilterImpl * This;
+    PKSOBJECT_CREATE_ITEM CreateItem;
+    PKSPIN_CONNECT Connect;
+    NTSTATUS Status;
+
+    /* get the create item */
+    CreateItem = KSCREATE_ITEM_IRP_STORAGE(Irp);
+
+    /* get the filter object */
+    This = (IKsFilterImpl*)CreateItem->Context;
+
+    /* acquire control mutex */
+    KeWaitForSingleObject(&This->Header.ControlMutex, Executive, KernelMode,
FALSE, NULL);
+
+    /* now validate the connect request */
+    Status = KsValidateConnectRequest(Irp, This->PinDescriptorCount,
This->PinDescriptors, &Connect);
+
+    if (NT_SUCCESS(Status))
+    {
+        /* create the pin */
+        Status = KspCreatePin(DeviceObject, Irp, This->Header.KsDevice,
This->FilterFactory, (IKsFilter*)&This->lpVtbl, Connect);
+    }
+
+    /* release control mutex */
+    KeReleaseMutex(&This->Header.ControlMutex, FALSE);
+
+    if (Status != STATUS_PENDING)
+    {
+        /* complete request */
+        Irp->IoStatus.Status = Status;
+        IoCompleteRequest(Irp, IO_NO_INCREMENT);
+    }
+    /* done */
+    return Status;
+}
+
+NTSTATUS
+NTAPI
+IKsFilter_DispatchCreateNode(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN PIRP Irp)
+{
+    UNIMPLEMENTED
+    Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
+    IoCompleteRequest(Irp, IO_NO_INCREMENT);
+    return STATUS_UNSUCCESSFUL;
+}
+
 
 NTSTATUS
 NTAPI
@@ -913,6 +967,7 @@
     PIO_STACK_LOCATION IoStack;
     PDEVICE_EXTENSION DeviceExtension;
     NTSTATUS Status;
+    PKSOBJECT_CREATE_ITEM CreateItem;
 
     /* get device extension */
     DeviceExtension = (PDEVICE_EXTENSION)DeviceObject->DeviceExtension;
@@ -943,7 +998,6 @@
     /* get current irp stack */
     IoStack = IoGetCurrentIrpStackLocation(Irp);
 
-
     /* initialize object bag */
     This->Filter.Bag = AllocateItem(NonPagedPool, sizeof(KSIOBJECT_BAG));
     if (!This->Filter.Bag)
@@ -953,6 +1007,25 @@
         return STATUS_INSUFFICIENT_RESOURCES;
     }
 
+    /* allocate create items */
+    CreateItem = AllocateItem(NonPagedPool, sizeof(KSOBJECT_CREATE_ITEM) * 2);
+    if (!CreateItem)
+    {
+        /* no memory */
+        FreeItem(This);
+        return STATUS_INSUFFICIENT_RESOURCES;
+    }
+
+    /* initialize pin create item */
+    CreateItem[0].Create = IKsFilter_DispatchCreatePin;
+    CreateItem[0].Context = (PVOID)This;
+    CreateItem[0].Flags = KSCREATE_ITEM_FREEONSTOP;
+    RtlInitUnicodeString(&CreateItem[0].ObjectClass, KSSTRING_Pin);
+    /* initialize node create item */
+    CreateItem[1].Create = IKsFilter_DispatchCreateNode;
+    CreateItem[1].Context = (PVOID)This;
+    CreateItem[1].Flags = KSCREATE_ITEM_FREEONSTOP;
+    RtlInitUnicodeString(&CreateItem[1].ObjectClass, KSSTRING_TopologyNode);
 
 
     KsDevice = (IKsDevice*)&DeviceExtension->DeviceHeader->lpVtblIKsDevice;
@@ -970,6 +1043,7 @@
     This->Header.KsDevice = &DeviceExtension->DeviceHeader->KsDevice;
     This->Header.Parent.KsFilterFactory = iface->lpVtbl->GetStruct(iface);
     This->Header.Type = KsObjectTypeFilter;
+    KeInitializeMutex(&This->Header.ControlMutex, 0);
     KeInitializeMutex(&This->ProcessingMutex, 0);
 
 
@@ -979,6 +1053,7 @@
     {
         /* what can go wrong, goes wrong */
         FreeItem(This);
+        FreeItem(CreateItem);
         return Status;
     }
 
@@ -989,7 +1064,7 @@
     {
         /* failed to add filter */
         FreeItem(This);
-
+        FreeItem(CreateItem);
         return Status;
     }
 
@@ -1006,12 +1081,12 @@
 
         /* free filter instance */
         FreeItem(This);
-
+        FreeItem(CreateItem);
         return Status;
     }
 
     /* now allocate the object header */
-    Status = KsAllocateObjectHeader((PVOID*)&This->ObjectHeader, 0, NULL, Irp,
&DispatchTable);
+    Status = KsAllocateObjectHeader((PVOID*)&This->ObjectHeader, 2, CreateItem,
Irp, &DispatchTable);
     if (!NT_SUCCESS(Status))
     {
         /* failed to allocate object header */

Modified: trunk/reactos/drivers/ksfilter/ks/filterfactory.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/filter…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/filterfactory.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/filterfactory.c [iso-8859-1] Tue Jul 28 21:32:22
2009
@@ -192,6 +192,9 @@
     InitializeListHead(&This->SymbolicLinkList);
     InitializeListHead(&This->FilterInstanceList);
 
+    /* initialize filter factory control mutex */
+    KeInitializeMutex(&This->Header.ControlMutex, 0);
+
     /* does the device use a reference string */
     if (RefString || !Descriptor->ReferenceGuid)
     {

Modified: trunk/reactos/drivers/ksfilter/ks/ksfunc.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/ksfunc…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/ksfunc.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/ksfunc.h [iso-8859-1] Tue Jul 28 21:32:22 2009
@@ -114,4 +114,14 @@
     IN OUT PULONG Size,
     OUT PVOID * Result);
 
+NTSTATUS
+KspCreatePin(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN PIRP Irp, 
+    IN PKSDEVICE KsDevice,
+    IN IKsFilterFactory * FilterFactory, 
+    IN IKsFilter* Filter,
+    IN PKSPIN_CONNECT Connect);
+
+
 #endif

Modified: trunk/reactos/drivers/ksfilter/ks/kstypes.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/kstype…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/kstypes.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/kstypes.h [iso-8859-1] Tue Jul 28 21:32:22 2009
@@ -59,6 +59,7 @@
 {
     KSOBJECTTYPE Type;
     PKSDEVICE KsDevice;
+    KMUTEX ControlMutex;
     union
     {
         PKSDEVICE KsDevice;

Modified: trunk/reactos/drivers/ksfilter/ks/pin.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/pin.c?…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/pin.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/pin.c [iso-8859-1] Tue Jul 28 21:32:22 2009
@@ -519,3 +519,17 @@
     UNIMPLEMENTED
     return NULL;
 }
+
+NTSTATUS
+KspCreatePin(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN PIRP Irp, 
+    IN PKSDEVICE KsDevice, 
+    IN IKsFilterFactory * FilterFactory, 
+    IN IKsFilter* Filter,
+    IN PKSPIN_CONNECT Connect)
+{
+
+    return STATUS_NOT_IMPLEMENTED;
+}
+