[janderwald] 43321: [WDMAUD] - Use KsProbeStreamIrp in wdmaud to probe user buffers - Remove a few hacks which were required to pass down irps to portcls [PORTCLS] - Check if there is an automation table [SYSAUDIO] - Release file object of pin to prevent reference leak -- - Audio stack now reacts faster as it now longer copies audio buffers in kernel mode and instead locks down the user buffers. In addition it uses less memory to do the same work.

Author: janderwald
Date: Wed Oct  7 12:41:34 2009
New Revision: 43321

URL: http://svn.reactos.org/svn/reactos?rev=43321&view=rev
Log:
[WDMAUD]
- Use KsProbeStreamIrp in wdmaud to probe user buffers
- Remove a few hacks which were required to pass down irps to portcls
[PORTCLS]
- Check if there is an automation table
[SYSAUDIO]
- Release file object of pin to prevent reference leak
--
- Audio stack now reacts faster as it now longer copies audio buffers in kernel mode and
instead locks down the user buffers. In addition it uses less memory to do the same work.


Modified:
    trunk/reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp
    trunk/reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp
    trunk/reactos/drivers/wdm/audio/backpln/portcls/pin_wavert.cpp
    trunk/reactos/drivers/wdm/audio/backpln/portcls/private.hpp
    trunk/reactos/drivers/wdm/audio/backpln/portcls/undoc.cpp
    trunk/reactos/drivers/wdm/audio/legacy/wdmaud/control.c
    trunk/reactos/drivers/wdm/audio/legacy/wdmaud/entry.c
    trunk/reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h
    trunk/reactos/drivers/wdm/audio/sysaudio/pin.c

Modified: trunk/reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/backpln/…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/backpln/portcls/irpstream.cpp [iso-8859-1] Wed Oct  7
12:41:34 2009
@@ -113,25 +113,32 @@
 
     if (!Buffer)
     {
-        // probe the stream irp
-        Status = KsProbeStreamIrp(Irp, KSSTREAM_WRITE | KSPROBE_ALLOCATEMDL |
KSPROBE_PROBEANDLOCK | KSPROBE_ALLOWFORMATCHANGE | KSPROBE_SYSTEMADDRESS, 0);
-
-        // check for success
-        if (!NT_SUCCESS(Status))
+        if (!Irp->MdlAddress)
         {
-            DPRINT1("KsProbeStreamIrp failed with %x\n", Status);
-            return Status;
+            // ioctl from KsStudio
+            // Wdmaud already probes buffers, therefore no need to probe it again
+            // probe the stream irp
+            Status = KsProbeStreamIrp(Irp, KSSTREAM_WRITE | KSPROBE_ALLOCATEMDL |
KSPROBE_PROBEANDLOCK | KSPROBE_ALLOWFORMATCHANGE | KSPROBE_SYSTEMADDRESS, 0);
+
+            // check for success
+            if (!NT_SUCCESS(Status))
+            {
+                DPRINT1("KsProbeStreamIrp failed with %x\n", Status);
+                return Status;
+            }
         }
-
         // get the stream header
         Header = (PKSSTREAM_HEADER)Irp->AssociatedIrp.SystemBuffer;
         PC_ASSERT(Header);
         PC_ASSERT(Irp->MdlAddress);
 
+        DPRINT("Size %u DataUsed %u FrameExtent %u SizeHeader %u\n",
Header->Size, Header->DataUsed, Header->FrameExtent, sizeof(KSSTREAM_HEADER));
+
         if (Irp->RequestorMode != KernelMode)
         {
            // use allocated mdl
            Header->Data = MmGetSystemAddressForMdlSafe(Irp->MdlAddress,
NormalPagePriority);
+           PC_ASSERT(Header->Data);
         }
     }
     else
@@ -227,7 +234,12 @@
     PC_ASSERT(StreamHeader);
 
     // store buffersize
-    *BufferSize = StreamHeader->DataUsed - Offset;
+    if (StreamHeader->DataUsed)
+        *BufferSize = StreamHeader->DataUsed - Offset;
+    else
+        *BufferSize = StreamHeader->FrameExtent - Offset;
+
+    PC_ASSERT(*BufferSize);
 
     // store buffer
     *Buffer = &((PUCHAR)StreamHeader->Data)[Offset];
@@ -243,8 +255,8 @@
 CIrpQueue::UpdateMapping(
     IN ULONG BytesWritten)
 {
-    //PIO_STACK_LOCATION IoStack;
     PKSSTREAM_HEADER StreamHeader;
+    ULONG Size;
 
     if (!m_Irp)
     {
@@ -252,16 +264,8 @@
         return;
     }
 
-#if 0
-    // get current irp stack location
-    IoStack = IoGetCurrentIrpStackLocation(m_Irp);
-
     // get stream header
-    StreamHeader =
(PKSSTREAM_HEADER)IoStack->Parameters.DeviceIoControl.Type3InputBuffer;
-#else
-    // HACK get stream header
     StreamHeader = (PKSSTREAM_HEADER)m_Irp->Tail.Overlay.DriverContext[2];
-#endif
 
     // sanity check
    // ASSERT(StreamHeader);
@@ -272,7 +276,14 @@
     // decrement available data counter
     m_NumDataAvailable -= BytesWritten;
 
-    if (m_CurrentOffset >= StreamHeader->DataUsed)
+    if (StreamHeader->DataUsed)
+        Size = StreamHeader->DataUsed;
+    else
+        Size = StreamHeader->FrameExtent;
+
+    PC_ASSERT(Size);
+
+    if (m_CurrentOffset >= Size)
     {
         // irp has been processed completly
         m_Irp->IoStatus.Status = STATUS_SUCCESS;
@@ -280,14 +291,14 @@
         // frame extend contains the original request size, DataUsed contains the real
buffer size
          //is different when kmixer performs channel conversion, upsampling etc
         
-        m_Irp->IoStatus.Information = StreamHeader->FrameExtent;
-
-        if (m_Irp->RequestorMode == KernelMode)
-        {
-            // HACK - WDMAUD should pass PKSSTREAM_HEADERs
-            ExFreePool(StreamHeader->Data);
-            ExFreePool(StreamHeader);
-        }
+        m_Irp->IoStatus.Information = Size;
+
+        PC_ASSERT_IRQL(DISPATCH_LEVEL);
+        MmUnlockPages(m_Irp->MdlAddress);
+        IoFreeMdl(m_Irp->MdlAddress);
+        m_Irp->MdlAddress = NULL;
+        ExFreePool(m_Irp->AssociatedIrp.SystemBuffer);
+        m_Irp->AssociatedIrp.SystemBuffer = NULL;
 
         // complete the request
         IoCompleteRequest(m_Irp, IO_SOUND_INCREMENT);
@@ -439,9 +450,6 @@
     
     Irp->IoStatus.Information = StreamHeader->FrameExtent;
 
-    // free stream data, no tag as wdmaud.drv does it atm
-    ExFreePool(StreamHeader->Data);
-
     // free stream header, no tag as wdmaud.drv allocates it atm
     ExFreePool(StreamHeader);
 

Modified: trunk/reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/backpln/…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp [iso-8859-1]
(original)
+++ trunk/reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp [iso-8859-1] Wed
Oct  7 12:41:34 2009
@@ -578,7 +578,7 @@
 {
     InterlockedIncrement((PLONG)&m_TotalPackets);
 
-    DPRINT("IPortPinWaveCyclic_HandleKsStream entered Total %u Pre %u Post %u State
%x MinData %u\n", m_TotalPackets, m_State, m_IrpQueue->NumData());
+    DPRINT("IPortPinWaveCyclic_HandleKsStream entered Total %u State %x MinData
%u\n", m_TotalPackets, m_State, m_IrpQueue->NumData());
 
     m_IrpQueue->AddMapping(NULL, 0, Irp);
 
@@ -729,6 +729,8 @@
     IN PIRP Irp)
 {
     PCLOSESTREAM_CONTEXT Ctx;
+
+    DPRINT1("CPortPinWaveCyclic::Close entered\n");
 
     if (m_Stream)
     {
@@ -828,27 +830,7 @@
     OUT PIO_STATUS_BLOCK StatusBlock,
     IN PDEVICE_OBJECT DeviceObject)
 {
-    NTSTATUS Status;
-    PCONTEXT_WRITE Packet;
-    PIRP Irp;
-
-    // HACK to be removed
-
-    DPRINT("CPortPinWaveCyclic::FastRead entered\n");
-
-    Packet = (PCONTEXT_WRITE)Buffer;
-
-    Irp = Packet->Irp;
-    StatusBlock->Status = STATUS_PENDING;
-
-    Status = m_IrpQueue->AddMapping((PUCHAR)Buffer, Length, Irp);
-
-    if (!NT_SUCCESS(Status))
-        return FALSE;
-
-    StatusBlock->Status = STATUS_PENDING;
-
-    return TRUE;
+    return KsDispatchFastReadFailure(FileObject, FileOffset, Length, Wait, LockKey,
Buffer, StatusBlock, DeviceObject);
 }
 
 
@@ -864,27 +846,7 @@
     OUT PIO_STATUS_BLOCK StatusBlock,
     IN PDEVICE_OBJECT DeviceObject)
 {
-    NTSTATUS Status;
-    PCONTEXT_WRITE Packet;
-    PIRP Irp;
-
-    // HACK to be removed
-
-    InterlockedIncrement((PLONG)&m_TotalPackets);
-
-    DPRINT("CPortPinWaveCyclic::FastWrite entered Total %u State %x MinData
%u\n", m_TotalPackets, m_State, m_IrpQueue->NumData());
-
-    Packet = (PCONTEXT_WRITE)Buffer;
-    Irp = Packet->Irp;
-
-    Status = m_IrpQueue->AddMapping((PUCHAR)Buffer, Length, Irp);
-
-    if (!NT_SUCCESS(Status))
-        return FALSE;
-
-    StatusBlock->Status = STATUS_PENDING;
-
-    return TRUE;
+    return KsDispatchFastReadFailure(FileObject, FileOffset, Length, Wait, LockKey,
Buffer, StatusBlock, DeviceObject);
 }
 
 

Modified: trunk/reactos/drivers/wdm/audio/backpln/portcls/pin_wavert.cpp
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/backpln/…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/backpln/portcls/pin_wavert.cpp [iso-8859-1]
(original)
+++ trunk/reactos/drivers/wdm/audio/backpln/portcls/pin_wavert.cpp [iso-8859-1] Wed Oct  7
12:41:34 2009
@@ -722,7 +722,6 @@
     OUT PIO_STATUS_BLOCK StatusBlock,
     IN PDEVICE_OBJECT DeviceObject)
 {
-    UNIMPLEMENTED
     return FALSE;
 }
 

Modified: trunk/reactos/drivers/wdm/audio/backpln/portcls/private.hpp
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/backpln/…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/backpln/portcls/private.hpp [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/backpln/portcls/private.hpp [iso-8859-1] Wed Oct  7
12:41:34 2009
@@ -355,12 +355,6 @@
 
 typedef struct
 {
-    KSSTREAM_HEADER Header;
-    PIRP Irp;
-}CONTEXT_WRITE, *PCONTEXT_WRITE;
-
-typedef struct
-{
     PVOID Pin;
     PIO_WORKITEM WorkItem;
     PIRP Irp;

Modified: trunk/reactos/drivers/wdm/audio/backpln/portcls/undoc.cpp
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/backpln/…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/backpln/portcls/undoc.cpp [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/backpln/portcls/undoc.cpp [iso-8859-1] Wed Oct  7
12:41:34 2009
@@ -90,6 +90,13 @@
 
             Node =
(PPCNODE_DESCRIPTOR)((ULONG_PTR)SubDeviceDescriptor->DeviceDescriptor->Nodes +
(Property->NodeId * SubDeviceDescriptor->DeviceDescriptor->NodeSize));
 
+            if (!Node->AutomationTable)
+            {
+                // request is out of bounds
+                Irp->IoStatus.Information = 0;
+                return STATUS_INVALID_PARAMETER;
+            }
+
             PC_ASSERT(Node->AutomationTable);
             PC_ASSERT(Node->AutomationTable->PropertyCount);
             PC_ASSERT(Node->AutomationTable->PropertyItemSize);
@@ -125,6 +132,13 @@
             }
 
             Node =
(PPCNODE_DESCRIPTOR)((ULONG_PTR)SubDeviceDescriptor->DeviceDescriptor->Nodes +
(Property->NodeId * SubDeviceDescriptor->DeviceDescriptor->NodeSize));
+
+            if (!Node->AutomationTable)
+            {
+                // request is out of bounds
+                Irp->IoStatus.Information = 0;
+                return STATUS_INVALID_PARAMETER;
+            }
 
             PC_ASSERT(Node->AutomationTable);
             PC_ASSERT(Node->AutomationTable->PropertyCount);

Modified: trunk/reactos/drivers/wdm/audio/legacy/wdmaud/control.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/legacy/w…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/legacy/wdmaud/control.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/legacy/wdmaud/control.c [iso-8859-1] Wed Oct  7
12:41:34 2009
@@ -266,7 +266,6 @@
             return WdmAudSetControlDetails(DeviceObject, Irp, DeviceInfo, ClientInfo);
         case IOCTL_GETCONTROLDETAILS:
             return WdmAudGetControlDetails(DeviceObject, Irp, DeviceInfo, ClientInfo);
-
         case IOCTL_GETPOS:
         case IOCTL_GETDEVID:
         case IOCTL_GETVOLUME:
@@ -279,206 +278,93 @@
     return SetIrpIoStatus(Irp, STATUS_NOT_IMPLEMENTED, 0);
 }
 
+
 NTSTATUS
 NTAPI
-WdmAudWriteCompletion(
-    IN PDEVICE_OBJECT  DeviceObject,
-    IN PIRP LowerIrp,
-    IN PVOID  Context)
-{
-    //PIRP Irp;
-    ASSERT(LowerIrp->PendingReturned == FALSE);
-    /* get original irp */
-    //Irp = (PIRP)Context;
-
-    /* save status */
-    //Irp->IoStatus.Status = LowerIrp->IoStatus.Status;
-    //Irp->IoStatus.Information = LowerIrp->IoStatus.Information;
-    /* complete request */
-    //IoCompleteRequest(Irp, IO_SOUND_INCREMENT);
-    /* return success to free irp */
-    return STATUS_SUCCESS;
-}
-
-
-NTSTATUS
-NTAPI
-WdmAudWrite(
+WdmAudReadWrite(
     IN  PDEVICE_OBJECT DeviceObject,
     IN  PIRP Irp)
 {
+    NTSTATUS Status;
+    PWDMAUD_DEVICE_INFO DeviceInfo;
+    PFILE_OBJECT FileObject;
     PIO_STACK_LOCATION IoStack;
-    PWDMAUD_DEVICE_INFO DeviceInfo;
-    PWDMAUD_CLIENT ClientInfo;
-    NTSTATUS Status = STATUS_SUCCESS;
-    PUCHAR Buffer;
-    PFILE_OBJECT FileObject;
+    ULONG Length;
     PMDL Mdl;
-    //PIRP LowerIrp;
-    PCONTEXT_WRITE Packet;
-    PVOID SystemBuffer;
-    //LARGE_INTEGER Offset;
-    IO_STATUS_BLOCK IoStatusBlock;
-
+
+    /* get current irp stack location */
     IoStack = IoGetCurrentIrpStackLocation(Irp);
 
-    //DPRINT("WdmAudWrite entered\n");
-
-    if (IoStack->Parameters.Write.Length < sizeof(WDMAUD_DEVICE_INFO))
-    {
-        /* invalid parameter */
-        DPRINT1("Input buffer too small size %u expected %u\n",
IoStack->Parameters.Write.Length, sizeof(WDMAUD_DEVICE_INFO));
-        return SetIrpIoStatus(Irp, STATUS_INVALID_PARAMETER, 0);
-    }
-
-    DeviceInfo = (PWDMAUD_DEVICE_INFO)MmGetMdlVirtualAddress(Irp->MdlAddress);
-
-
+    /* store the input buffer in UserBuffer - as KsProbeStreamIrp operates on
IRP_MJ_DEVICE_CONTROL */
+    Irp->UserBuffer = MmGetMdlVirtualAddress(Irp->MdlAddress);
+
+    /* sanity check */
+    ASSERT(Irp->UserBuffer);
+
+    /* get the length of the request length */
+    Length = IoStack->Parameters.Write.Length;
+
+    /* store outputbuffer length */
+    IoStack->Parameters.DeviceIoControl.OutputBufferLength = Length;
+
+    /* store mdl address */
+    Mdl = Irp->MdlAddress;
+
+    /* remove mdladdress as KsProbeStreamIrp will interprete it as an already probed
audio buffer */
+    Irp->MdlAddress = NULL;
+
+    /* check for success */
+
+    if (IoStack->MajorFunction == IRP_MJ_WRITE)
+    {
+        /* probe the write stream irp */
+        Status = KsProbeStreamIrp(Irp, KSPROBE_STREAMWRITE | KSPROBE_ALLOCATEMDL |
KSPROBE_PROBEANDLOCK, Length);
+    }
+    else
+    {
+        /* probe the read stream irp */
+        Status = KsProbeStreamIrp(Irp, KSPROBE_STREAMREAD | KSPROBE_ALLOCATEMDL |
KSPROBE_PROBEANDLOCK, Length);
+    }
+
+    /* now free the mdl */
+    IoFreeMdl(Mdl);
+
+    if (!NT_SUCCESS(Status))
+    {
+        DPRINT1("KsProbeStreamIrp failed with Status %x\n", Status);
+        return SetIrpIoStatus(Irp, Status, 0);
+    }
+
+    /* get device info */
+    DeviceInfo = (PWDMAUD_DEVICE_INFO)Irp->AssociatedIrp.SystemBuffer;
+    ASSERT(DeviceInfo);
+
+    /* now get sysaudio file object */
     Status = ObReferenceObjectByHandle(DeviceInfo->hDevice, GENERIC_WRITE,
IoFileObjectType, KernelMode, (PVOID*)&FileObject, NULL);
     if (!NT_SUCCESS(Status))
     {
-        DPRINT1("Invalid buffer handle %x\n", DeviceInfo->hDevice);
+        DPRINT1("Invalid pin handle %x\n", DeviceInfo->hDevice);
         return SetIrpIoStatus(Irp, Status, 0);
     }
 
-
-    //DPRINT("DeviceInfo %p %p %p\n", DeviceInfo,
Irp->MdlAddress->StartVa, Irp->MdlAddress->MappedSystemVa);
-    if (DeviceInfo->DeviceType < MIN_SOUND_DEVICE_TYPE || DeviceInfo->DeviceType
> MAX_SOUND_DEVICE_TYPE)
-    {
-        /* invalid parameter */
-        DPRINT1("Error: device type not set\n");
-        ObDereferenceObject(FileObject);
-        return SetIrpIoStatus(Irp, STATUS_INVALID_PARAMETER, 0);
-    }
-
-    if (!IoStack->FileObject)
-    {
-        /* file object parameter */
-        DPRINT1("Error: file object is not attached\n");
-        ObDereferenceObject(FileObject);
-        return SetIrpIoStatus(Irp, STATUS_UNSUCCESSFUL, 0);
-    }
-    ClientInfo = (PWDMAUD_CLIENT)IoStack->FileObject->FsContext;
-
-
-    /* setup stream context */
-    Packet = (PCONTEXT_WRITE)ExAllocatePool(NonPagedPool, sizeof(CONTEXT_WRITE));
-    if (!Packet)
-    {
-        /* no memory */
-        return SetIrpIoStatus(Irp, STATUS_NO_MEMORY, 0);
-    }
-
-    Packet->Header.FrameExtent = DeviceInfo->Header.FrameExtent;
-    Packet->Header.DataUsed = DeviceInfo->Header.DataUsed;
-    Packet->Header.Size = sizeof(KSSTREAM_HEADER);
-    Packet->Header.PresentationTime.Numerator = 1;
-    Packet->Header.PresentationTime.Denominator = 1;
-    Packet->Irp = Irp;
-
-    Buffer = ExAllocatePool(NonPagedPool, DeviceInfo->Header.DataUsed);
-    if (!Buffer)
-    {
-        /* no memory */
-        ExFreePool(Packet);
-        ObDereferenceObject(FileObject);
-        return SetIrpIoStatus(Irp, STATUS_NO_MEMORY, 0);
-    }
-    Packet->Header.Data = Buffer;
-
-    Mdl = IoAllocateMdl(DeviceInfo->Header.Data, DeviceInfo->Header.DataUsed,
FALSE, FALSE, FALSE);
-    if (!Mdl)
-    {
-        /* no memory */
-        ExFreePool(Packet);
-        ObDereferenceObject(FileObject);
-        ExFreePool(Buffer);
-        return SetIrpIoStatus(Irp, STATUS_NO_MEMORY, 0);
-    }
-
-    _SEH2_TRY
-    {
-        MmProbeAndLockPages(Mdl, UserMode, IoReadAccess);
-    }
-    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
-    {
-        /* Exception, get the error code */
-        Status = _SEH2_GetExceptionCode();
-    }
-    _SEH2_END;
-
-    if (!NT_SUCCESS(Status))
-    {
-        DPRINT1("Invalid buffer supplied\n");
-        ExFreePool(Buffer);
-        ExFreePool(Packet);
-        IoFreeMdl(Mdl);
-        ObDereferenceObject(FileObject);
-        return SetIrpIoStatus(Irp, Status, 0);
-    }
-
-    SystemBuffer = MmGetSystemAddressForMdlSafe(Mdl, NormalPagePriority );
-    if (!SystemBuffer)
-    {
-        DPRINT1("Invalid buffer supplied\n");
-        ExFreePool(Buffer);
-        ExFreePool(Packet);
-        IoFreeMdl(Mdl);
-        ObDereferenceObject(FileObject);
-        return SetIrpIoStatus(Irp, STATUS_INSUFFICIENT_RESOURCES, 0);
-    }
-
-    RtlMoveMemory(Buffer, SystemBuffer, DeviceInfo->Header.DataUsed);
-    MmUnlockPages(Mdl);
-    IoFreeMdl(Mdl);
-
-#if 1
-    KsStreamIo(FileObject, NULL, NULL, NULL, NULL, 0, &IoStatusBlock, Packet,
sizeof(CONTEXT_WRITE), KSSTREAM_WRITE, UserMode);
+    /* skip current irp stack location */
+    IoSkipCurrentIrpStackLocation(Irp);
+
+    /* get next stack location */
+    IoStack = IoGetNextIrpStackLocation(Irp);
+
+    /* attach file object */
+    IoStack->FileObject = FileObject;
+    IoStack->Parameters.Write.Length = sizeof(KSSTREAM_HEADER);
+    IoStack->MajorFunction = IRP_MJ_WRITE;
+
+    /* mark irp as pending */
+    IoMarkIrpPending(Irp);
+    /* call the driver */
+    Status = IoCallDriver(IoGetRelatedDeviceObject(FileObject), Irp);
+
     /* dereference file object */
     ObDereferenceObject(FileObject);
-    return IoStatusBlock.Status;
-#else
-    Offset.QuadPart = 0L;
-
-    /* now build the irp */
-    LowerIrp = IoBuildAsynchronousFsdRequest (IRP_MJ_WRITE,
-                                              IoGetRelatedDeviceObject(FileObject),
-                                              Packet,
-                                              sizeof(KSSTREAM_HEADER),
-                                              &Offset,
-                                              NULL);
-
-    if (!LowerIrp)
-    {
-        /* failed to create an associated irp */
-        ExFreePool(Buffer);
-        ExFreePool(Packet);
-        ObDereferenceObject(FileObject);
-
-        return SetIrpIoStatus(Irp, STATUS_INSUFFICIENT_RESOURCES, 0);
-    }
-
-    /* get next stack location */
-    IoStack = IoGetNextIrpStackLocation(LowerIrp);
-
-    /* attach file object */
-    IoStack->FileObject = FileObject;
-
-    /* set a completion routine */
-    IoSetCompletionRoutine(LowerIrp, WdmAudWriteCompletion, (PVOID)Irp, TRUE, TRUE,
TRUE);
-
-    /* mark irp as pending */
-    //IoMarkIrpPending(Irp);
-    Irp->IoStatus.Information = DeviceInfo->BufferSize;
-    Irp->IoStatus.Status = STATUS_SUCCESS;
-    IoCompleteRequest(Irp, IO_NO_INCREMENT);
-    DPRINT1("Wrote %u\n", DeviceInfo->BufferSize);
-    /* call the driver */
-    Status = IoCallDriver(IoGetRelatedDeviceObject(FileObject), LowerIrp);
-
-    /* dereference file object */
-    ObDereferenceObject(FileObject);
-
-    return STATUS_SUCCESS;
-#endif
-}
+
+    return Status;
+}

Modified: trunk/reactos/drivers/wdm/audio/legacy/wdmaud/entry.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/legacy/w…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/legacy/wdmaud/entry.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/legacy/wdmaud/entry.c [iso-8859-1] Wed Oct  7 12:41:34
2009
@@ -244,14 +244,14 @@
 
     Driver->DriverUnload = WdmAudUnload;
 
-
     Driver->MajorFunction[IRP_MJ_CREATE] = WdmAudCreate;
     Driver->MajorFunction[IRP_MJ_CLOSE] = WdmAudClose;
     Driver->MajorFunction[IRP_MJ_PNP] = WdmAudPnp;
     Driver->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = KsDefaultForwardIrp; 
     Driver->MajorFunction[IRP_MJ_CLEANUP] = WdmAudCleanup;
     Driver->MajorFunction[IRP_MJ_DEVICE_CONTROL] = WdmAudDeviceControl;
-    Driver->MajorFunction[IRP_MJ_WRITE] = WdmAudWrite;
+    Driver->MajorFunction[IRP_MJ_WRITE] = WdmAudReadWrite;
+    Driver->MajorFunction[IRP_MJ_READ] = WdmAudReadWrite;
     Driver->MajorFunction[IRP_MJ_POWER] = KsDefaultDispatchPower;
 
     return WdmAudInstallDevice(Driver);

Modified: trunk/reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/legacy/w…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h [iso-8859-1] Wed Oct  7
12:41:34 2009
@@ -118,12 +118,6 @@
 
 }WDMAUD_DEVICE_EXTENSION, *PWDMAUD_DEVICE_EXTENSION;
 
-typedef struct
-{
-    KSSTREAM_HEADER Header;
-    PIRP Irp;
-}CONTEXT_WRITE, *PCONTEXT_WRITE;
-
 NTSTATUS
 NTAPI
 OpenWavePin(
@@ -157,6 +151,12 @@
 
 NTSTATUS
 NTAPI
+WdmAudReadWrite(
+    IN  PDEVICE_OBJECT DeviceObject,
+    IN  PIRP Irp);
+
+NTSTATUS
+NTAPI
 WdmAudWrite(
     IN  PDEVICE_OBJECT DeviceObject,
     IN  PIRP Irp);

Modified: trunk/reactos/drivers/wdm/audio/sysaudio/pin.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/sysaudio…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/sysaudio/pin.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/sysaudio/pin.c [iso-8859-1] Wed Oct  7 12:41:34 2009
@@ -115,9 +115,16 @@
     IoStack->MajorFunction = IRP_MJ_DEVICE_CONTROL;
     IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_KS_WRITE_STREAM;
//FIXME
     IoStack->Parameters.DeviceIoControl.OutputBufferLength = Length;
+    ASSERT(Irp->AssociatedIrp.SystemBuffer);
 
     /* now call the driver */
-    return IoCallDriver(IoGetRelatedDeviceObject(FileObject), Irp);
+    Status = IoCallDriver(IoGetRelatedDeviceObject(FileObject), Irp);
+
+    /* dereference file object */
+    ObDereferenceObject(FileObject);
+
+    return Status;
+
 }
 
 NTSTATUS
@@ -149,57 +156,6 @@
     Irp->IoStatus.Information = 0;
     IoCompleteRequest(Irp, IO_NO_INCREMENT);
     return STATUS_SUCCESS;
-}
-
-BOOLEAN
-NTAPI
-Pin_fnFastWrite(
-    PFILE_OBJECT FileObject,
-    PLARGE_INTEGER FileOffset,
-    ULONG Length,
-    BOOLEAN Wait,
-    ULONG LockKey,
-    PVOID Buffer,
-    PIO_STATUS_BLOCK IoStatus,
-    PDEVICE_OBJECT DeviceObject)
-{
-    PDISPATCH_CONTEXT Context;
-    PFILE_OBJECT RealFileObject;
-    NTSTATUS Status;
-
-    DPRINT("Pin_fnFastWrite called DeviceObject %p Irp %p\n", DeviceObject);
-
-    Context = (PDISPATCH_CONTEXT)FileObject->FsContext;
-
-    if (Context->hMixerPin)
-    {
-        Status = ObReferenceObjectByHandle(Context->hMixerPin, GENERIC_WRITE,
IoFileObjectType, KernelMode, (PVOID*)&RealFileObject, NULL);
-        if (NT_SUCCESS(Status))
-        {
-            Status = KsStreamIo(RealFileObject, NULL, NULL, NULL, NULL, 0, IoStatus,
Buffer, Length, KSSTREAM_WRITE, UserMode);
-            ObDereferenceObject(RealFileObject);
-        }
-
-        if (!NT_SUCCESS(Status))
-        {
-            DPRINT1("Mixing stream failed with %lx\n", Status);
-            DbgBreakPoint();
-            return FALSE;
-        }
-    }
-
-    Status = ObReferenceObjectByHandle(Context->Handle, GENERIC_WRITE,
IoFileObjectType, KernelMode, (PVOID*)&RealFileObject, NULL);
-    if (!NT_SUCCESS(Status))
-        return FALSE;
-
-    Status = KsStreamIo(RealFileObject, NULL, NULL, NULL, NULL, 0, IoStatus, Buffer,
Length, KSSTREAM_WRITE, UserMode);
-
-    ObDereferenceObject(RealFileObject);
-
-    if (NT_SUCCESS(Status))
-        return TRUE;
-    else
-        return FALSE;
 }
 
 static KSDISPATCH_TABLE PinTable =
@@ -213,7 +169,7 @@
     KsDispatchInvalidDeviceRequest,
     KsDispatchFastIoDeviceControlFailure,
     KsDispatchFastReadFailure,
-    Pin_fnFastWrite,
+    KsDispatchFastWriteFailure,
 };
 
 NTSTATUS