[janderwald] 47225: [SYSAUDIO] - Don't build the pin descriptor as this will make problems with dynamic audio devices which dynamically adjust their audio pins - Remove dead code

Author: janderwald
Date: Sat May 15 21:05:58 2010
New Revision: 47225

URL: http://svn.reactos.org/svn/reactos?rev=47225&view=rev
Log:
[SYSAUDIO]
- Don't build the pin descriptor as this will make problems with dynamic audio devices
which dynamically adjust their audio pins
- Remove dead code

Modified:
    trunk/reactos/drivers/wdm/audio/sysaudio/control.c
    trunk/reactos/drivers/wdm/audio/sysaudio/deviface.c
    trunk/reactos/drivers/wdm/audio/sysaudio/main.c
    trunk/reactos/drivers/wdm/audio/sysaudio/pin.c
    trunk/reactos/drivers/wdm/audio/sysaudio/sysaudio.h

Modified: trunk/reactos/drivers/wdm/audio/sysaudio/control.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/sysaudio…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/sysaudio/control.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/sysaudio/control.c [iso-8859-1] Sat May 15 21:05:58
2010
@@ -97,7 +97,6 @@
     NTSTATUS Status;
     PKSAUDIO_DEVICE_ENTRY Entry;
     ULONG BytesReturned;
-    PKSP_PIN Pin;
 
     // in order to access pin properties of a sysaudio device
     // the caller must provide a KSP_PIN struct, where
@@ -110,8 +109,6 @@
         return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(KSPROPERTY) +
sizeof(ULONG));
     }
 
-    Pin = (PKSP_PIN)Property;
-
     Entry = GetListEntry(&DeviceExtension->KsAudioDeviceList,
((KSP_PIN*)Property)->Reserved);
     if (!Entry)
     {
@@ -119,64 +116,15 @@
         return SetIrpIoStatus(Irp, STATUS_INVALID_PARAMETER, 0);
     }
 
-    if (!Entry->Pins)
-    {
-        /* expected pins */
-        return SetIrpIoStatus(Irp, STATUS_UNSUCCESSFUL, 0);
-    }
-
-    if (Entry->PinDescriptorsCount <= Pin->PinId)
-    {
-        /* invalid pin id */
-        return SetIrpIoStatus(Irp, STATUS_INVALID_PARAMETER, 0);
-    }
-
-    if (Property->Id == KSPROPERTY_PIN_CTYPES)
-    {
-        if (IoStack->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(ULONG))
-        {
-            /* too small buffer */
-            return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(ULONG));
-        }
-        /* store result */
-        *((PULONG)Irp->UserBuffer) = Entry->PinDescriptorsCount;
-        return SetIrpIoStatus(Irp, STATUS_SUCCESS, sizeof(ULONG));
-    }
-    else if (Property->Id == KSPROPERTY_PIN_COMMUNICATION)
-    {
-        if (IoStack->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(KSPIN_COMMUNICATION))
-        {
-            /* too small buffer */
-            return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL,
sizeof(KSPIN_COMMUNICATION));
-        }
-        /* store result */
-        *((KSPIN_COMMUNICATION*)Irp->UserBuffer) =
Entry->PinDescriptors[Pin->PinId].Communication;
-        return SetIrpIoStatus(Irp, STATUS_SUCCESS, sizeof(KSPIN_COMMUNICATION));
-
-    }
-    else if (Property->Id == KSPROPERTY_PIN_DATAFLOW)
-    {
-        if (IoStack->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(KSPIN_DATAFLOW))
-        {
-            /* too small buffer */
-            return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(KSPIN_DATAFLOW));
-        }
-        /* store result */
-        *((KSPIN_DATAFLOW*)Irp->UserBuffer) =
Entry->PinDescriptors[Pin->PinId].DataFlow;
-        return SetIrpIoStatus(Irp, STATUS_SUCCESS, sizeof(KSPIN_DATAFLOW));
-    }
-    else
-    {
-        /* forward request to the filter implementing the property */
-        Status = KsSynchronousIoControlDevice(Entry->FileObject, KernelMode,
IOCTL_KS_PROPERTY,
+    /* forward request to the filter implementing the property */
+    Status = KsSynchronousIoControlDevice(Entry->FileObject, KernelMode,
IOCTL_KS_PROPERTY,
                                             
(PVOID)IoStack->Parameters.DeviceIoControl.Type3InputBuffer,
                                             
IoStack->Parameters.DeviceIoControl.InputBufferLength,
                                              Irp->UserBuffer,
                                             
IoStack->Parameters.DeviceIoControl.OutputBufferLength,
                                              &BytesReturned);
 
-        return SetIrpIoStatus(Irp, Status, BytesReturned);
-    }
+    return SetIrpIoStatus(Irp, Status, BytesReturned);
 }
 
 
@@ -328,7 +276,7 @@
     PinRequest.Property.Set = KSPROPSETID_Pin;
     PinRequest.Property.Flags = KSPROPERTY_TYPE_GET;
     PinRequest.Property.Id = KSPROPERTY_PIN_CINSTANCES;
-
+	ASSERT(Entry->FileObject);
     return KsSynchronousIoControlDevice(Entry->FileObject, KernelMode,
IOCTL_KS_PROPERTY, (PVOID)&PinRequest, sizeof(KSP_PIN), (PVOID)PinInstances,
sizeof(KSPIN_CINSTANCES), &BytesReturned);
 
 }

Modified: trunk/reactos/drivers/wdm/audio/sysaudio/deviface.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/sysaudio…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/sysaudio/deviface.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/sysaudio/deviface.c [iso-8859-1] Sat May 15 21:05:58
2010
@@ -13,139 +13,6 @@
 const GUID KS_CATEGORY_AUDIO                   = {0x6994AD04L, 0x93EF, 0x11D0, {0xA3,
0xCC, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
 const GUID KS_CATEGORY_TOPOLOGY                = {0xDDA54A40, 0x1E4C, 0x11D1, {0xA0,
0x50, 0x40, 0x57, 0x05, 0xC1, 0x00, 0x00}};
 const GUID DMOCATEGORY_ACOUSTIC_ECHO_CANCEL    = {0xBF963D80L, 0xC559, 0x11D0, {0x8A,
0x2B, 0x00, 0xA0, 0xC9, 0x25, 0x5A, 0xC1}};
-
-NTSTATUS
-BuildPinDescriptor(
-    IN PKSAUDIO_DEVICE_ENTRY DeviceEntry,
-    IN ULONG Count)
-{
-    ULONG Index;
-    KSP_PIN PinRequest;
-    KSPIN_DATAFLOW DataFlow;
-    KSPIN_COMMUNICATION Communication;
-    ULONG NumWaveOutPin, NumWaveInPin;
-    NTSTATUS Status;
-    ULONG BytesReturned;
-
-    NumWaveInPin = 0;
-    NumWaveOutPin = 0;
-    for(Index = 0; Index < Count; Index++)
-    {
-        /* retrieve data flow */
-        PinRequest.PinId = Index;
-        PinRequest.Property.Set = KSPROPSETID_Pin;
-        PinRequest.Property.Flags = KSPROPERTY_TYPE_GET;
-
-        /* get dataflow direction */
-        PinRequest.Property.Id = KSPROPERTY_PIN_DATAFLOW;
-        Status = KsSynchronousIoControlDevice(DeviceEntry->FileObject, KernelMode,
IOCTL_KS_PROPERTY, (PVOID)&PinRequest, sizeof(KSP_PIN), (PVOID)&DataFlow,
sizeof(KSPIN_DATAFLOW), &BytesReturned);
-        if (NT_SUCCESS(Status))
-        {
-            DeviceEntry->PinDescriptors[Index].DataFlow = DataFlow;
-        }
-
-        /* get irp flow direction */
-        PinRequest.Property.Id = KSPROPERTY_PIN_COMMUNICATION;
-        Status = KsSynchronousIoControlDevice(DeviceEntry->FileObject, KernelMode,
IOCTL_KS_PROPERTY, (PVOID)&PinRequest, sizeof(KSP_PIN), (PVOID)&Communication,
sizeof(KSPIN_COMMUNICATION), &BytesReturned);
-        if (NT_SUCCESS(Status))
-        {
-            DeviceEntry->PinDescriptors[Index].Communication = Communication;
-        }
-
-        if (Communication == KSPIN_COMMUNICATION_SINK && DataFlow ==
KSPIN_DATAFLOW_IN)
-            NumWaveOutPin++;
-
-        if (Communication == KSPIN_COMMUNICATION_SINK && DataFlow ==
KSPIN_DATAFLOW_OUT)
-            NumWaveInPin++;
-
-        /* FIXME query for interface, dataformat etc */
-    }
-
-    DPRINT("Num Pins %u Num WaveIn Pins %u Name WaveOut Pins %u\n",
DeviceEntry->PinDescriptorsCount, NumWaveInPin, NumWaveOutPin);
-    return STATUS_SUCCESS;
-}
-
-VOID
-QueryFilterRoutine(
-    IN PKSAUDIO_DEVICE_ENTRY DeviceEntry)
-{
-    KSPROPERTY PropertyRequest;
-    ULONG Count;
-    NTSTATUS Status;
-    ULONG BytesReturned;
-
-    DPRINT("Querying filter...\n");
-
-    PropertyRequest.Set = KSPROPSETID_Pin;
-    PropertyRequest.Flags = KSPROPERTY_TYPE_GET;
-    PropertyRequest.Id = KSPROPERTY_PIN_CTYPES;
-
-    /* query for num of pins */
-    Status = KsSynchronousIoControlDevice(DeviceEntry->FileObject, KernelMode,
IOCTL_KS_PROPERTY, (PVOID)&PropertyRequest, sizeof(KSPROPERTY), (PVOID)&Count,
sizeof(ULONG), &BytesReturned);
-    if (!NT_SUCCESS(Status))
-    {
-        DPRINT1("Failed to query number of pins Status %x\n", Status);
-        return;
-    }
-
-    if (!Count)
-    {
-        DPRINT1("Filter has no pins!\n");
-        return;
-    }
-
-    /* allocate pin descriptor array */
-    DeviceEntry->PinDescriptors = ExAllocatePool(NonPagedPool, Count *
sizeof(KSPIN_DESCRIPTOR));
-    if (!DeviceEntry->PinDescriptors)
-    {
-        /* no memory */
-        return;
-    }
-
-    /* zero array pin descriptor array */
-    RtlZeroMemory(DeviceEntry->PinDescriptors, Count * sizeof(KSPIN_DESCRIPTOR));
-
-    /* build the device descriptor */
-    Status = BuildPinDescriptor(DeviceEntry, Count);
-    if (!NT_SUCCESS(Status))
-        return;
-
-
-    /* allocate pin array */
-    DeviceEntry->Pins = ExAllocatePool(NonPagedPool, Count * sizeof(PIN_INFO));
-    if (!DeviceEntry->Pins)
-    {
-        /* no memory */
-        DPRINT1("Failed to allocate memory Pins %u Block %x\n", Count, Count *
sizeof(PIN_INFO));
-        return;
-    }
-
-    /* clear array */
-    RtlZeroMemory(DeviceEntry->Pins, sizeof(PIN_INFO) * Count);
-    DeviceEntry->PinDescriptorsCount = Count;
-
-}
-
-VOID
-NTAPI
-FilterPinWorkerRoutine(
-    IN PDEVICE_OBJECT DeviceObject,
-    IN PVOID Context)
-{
-    PKSAUDIO_DEVICE_ENTRY DeviceEntry;
-    PFILTER_WORKER_CONTEXT Ctx = (PFILTER_WORKER_CONTEXT)Context;
-
-    DeviceEntry = Ctx->DeviceEntry;
-
-    QueryFilterRoutine(DeviceEntry);
-
-    /* free work item */
-    IoFreeWorkItem(Ctx->WorkItem);
-    /* free work item context */
-    ExFreePool(Ctx);
-    return;
-
-}
 
 NTSTATUS
 OpenDevice(
@@ -199,8 +66,6 @@
     IN PUNICODE_STRING DeviceName)
 {
     NTSTATUS Status = STATUS_SUCCESS;
-    PFILTER_WORKER_CONTEXT Ctx = NULL;
-    PIO_WORKITEM WorkItem = NULL;
     PSYSAUDIODEVEXT DeviceExtension;
     PKSAUDIO_DEVICE_ENTRY DeviceEntry = NULL;
 
@@ -214,24 +79,6 @@
 
     /* initialize audio device entry */
     RtlZeroMemory(DeviceEntry, sizeof(KSAUDIO_DEVICE_ENTRY));
-
-    /* allocate filter ctx */
-    Ctx = ExAllocatePool(NonPagedPool, sizeof(FILTER_WORKER_CONTEXT));
-    if (!Ctx)
-    {
-        /* no memory */
-        Status = STATUS_INSUFFICIENT_RESOURCES;
-        goto cleanup;
-    }
-
-    /* allocate work item */
-    WorkItem = IoAllocateWorkItem(DeviceObject);
-    if (!WorkItem)
-    {
-        /* no memory */
-        Status = STATUS_INSUFFICIENT_RESOURCES;
-        goto cleanup;
-    }
 
     /* set device name */
     DeviceEntry->DeviceName.Length = 0;
@@ -254,9 +101,6 @@
      {
          goto cleanup;
      }
-
-    Ctx->DeviceEntry = DeviceEntry;
-    Ctx->WorkItem = WorkItem;
 
     /* fetch device extension */
     DeviceExtension = (PSYSAUDIODEVEXT)DeviceObject->DeviceExtension;
@@ -265,16 +109,9 @@
     InterlockedIncrement((PLONG)&DeviceExtension->NumberOfKsAudioDevices);
 
     DPRINT("Successfully opened audio device %u Device %S\n",
DeviceExtension->NumberOfKsAudioDevices, DeviceEntry->DeviceName.Buffer);
-    IoQueueWorkItem(WorkItem, FilterPinWorkerRoutine, DelayedWorkQueue, (PVOID)Ctx);
     return Status;
 
 cleanup:
-    if (Ctx)
-        ExFreePool(Ctx);
-
-    if (WorkItem)
-        IoFreeWorkItem(WorkItem);
-
     if (DeviceEntry)
     {
         if (DeviceEntry->DeviceName.Buffer)

Modified: trunk/reactos/drivers/wdm/audio/sysaudio/main.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/sysaudio…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/sysaudio/main.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/sysaudio/main.c [iso-8859-1] Sat May 15 21:05:58 2010
@@ -53,10 +53,10 @@
 
         /* close audio device handle */
         ZwClose(DeviceEntry->Handle);
+
         /* free device string */
         RtlFreeUnicodeString(&DeviceEntry->DeviceName);
-        /* free pins */
-        ExFreePool(DeviceEntry->Pins);
+
         /* free audio device entry */
         ExFreePool(DeviceEntry);
     }

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] Sat May 15 21:05:58 2010
@@ -354,7 +354,7 @@
     }
 #endif
 
-    DeviceEntry->Pins[Connect->PinId].References = 0;
+    //DeviceEntry->Pins[Connect->PinId].References = 0;
 
     /* initialize dispatch context */
     DispatchContext->Handle = RealPinHandle;
@@ -386,6 +386,44 @@
 }
 
 NTSTATUS
+GetConnectRequest(
+    IN PIRP Irp,
+    OUT PKSPIN_CONNECT * Result)
+{
+    PIO_STACK_LOCATION IoStack;
+    ULONG ObjectLength, ParametersLength;
+    PVOID Buffer;
+
+    /* get current irp stack */
+    IoStack = IoGetCurrentIrpStackLocation(Irp);
+
+    /* get object class length */
+    ObjectLength = (wcslen(KSSTRING_Pin) + 2) * sizeof(WCHAR);
+
+    /* check for minium length requirement */
+    if (ObjectLength  + sizeof(KSPIN_CONNECT) >
IoStack->FileObject->FileName.MaximumLength)
+        return STATUS_UNSUCCESSFUL;
+
+    /* extract parameters length */
+    ParametersLength = IoStack->FileObject->FileName.MaximumLength - ObjectLength;
+
+    /* allocate buffer */
+    Buffer = ExAllocatePool(NonPagedPool, ParametersLength);
+    if (!Buffer)
+        return STATUS_INSUFFICIENT_RESOURCES;
+
+    /* copy parameters */
+    RtlMoveMemory(Buffer, &IoStack->FileObject->FileName.Buffer[ObjectLength /
sizeof(WCHAR)], ParametersLength);
+
+    /* store result */
+    *Result = (PKSPIN_CONNECT)Buffer;
+
+    return STATUS_SUCCESS;
+}
+
+
+
+NTSTATUS
 NTAPI
 DispatchCreateSysAudioPin(
     IN PDEVICE_OBJECT DeviceObject,
@@ -394,7 +432,7 @@
     NTSTATUS Status = STATUS_SUCCESS;
     PIO_STACK_LOCATION IoStack;
     PKSAUDIO_DEVICE_ENTRY DeviceEntry;
-    PKSPIN_CONNECT Connect = NULL;
+    PKSPIN_CONNECT Connect;
     PDISPATCH_CONTEXT DispatchContext;
 
     DPRINT("DispatchCreateSysAudioPin entered\n");
@@ -410,9 +448,6 @@
     /* get current attached virtual device */
     DeviceEntry =
(PKSAUDIO_DEVICE_ENTRY)IoStack->FileObject->RelatedFileObject->FsContext;
 
-    /* now validate pin connect request */
-    Status = KsValidateConnectRequest(Irp, DeviceEntry->PinDescriptorsCount,
DeviceEntry->PinDescriptors, &Connect);
-
     /* check for success */
     if (!NT_SUCCESS(Status))
     {
@@ -421,6 +456,19 @@
         IoCompleteRequest(Irp, IO_NO_INCREMENT);
         return Status;
     }
+
+    /* get connect details */
+    Status = GetConnectRequest(Irp, &Connect);
+
+    /* check for success */
+    if (!NT_SUCCESS(Status))
+    {
+        /* failed to obtain connect details */
+        Irp->IoStatus.Status = Status;
+        IoCompleteRequest(Irp, IO_NO_INCREMENT);
+        return Status;
+    }
+
 
     /* allocate dispatch context */
     DispatchContext = ExAllocatePool(NonPagedPool, sizeof(DISPATCH_CONTEXT));

Modified: trunk/reactos/drivers/wdm/audio/sysaudio/sysaudio.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/sysaudio…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/sysaudio/sysaudio.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/sysaudio/sysaudio.h [iso-8859-1] Sat May 15 21:05:58
2010
@@ -24,9 +24,7 @@
     HANDLE Handle;                          // handle to audio device
     PFILE_OBJECT FileObject;                // file objecto to audio device
 
-    PIN_INFO * Pins;                        // array of PIN_INFO
-    ULONG PinDescriptorsCount;              // number of pin descriptors
-    KSPIN_DESCRIPTOR *PinDescriptors;        // pin descriptors array
+    //PIN_INFO * Pins;                        // array of PIN_INFO
 }KSAUDIO_DEVICE_ENTRY, *PKSAUDIO_DEVICE_ENTRY;
 
 typedef struct
@@ -61,20 +59,6 @@
 
     HANDLE hMixerPin;                                    // handle to mixer pin
 }DISPATCH_CONTEXT, *PDISPATCH_CONTEXT;
-
-typedef struct
-{
-    PIO_WORKITEM WorkItem;
-    PKSAUDIO_DEVICE_ENTRY DeviceEntry;
-}FILTER_WORKER_CONTEXT, *PFILTER_WORKER_CONTEXT;
-
-typedef struct
-{
-    PIRP Irp;
-    IO_STATUS_BLOCK StatusBlock;
-}COMPLETION_CONTEXT, *PCOMPLETION_CONTEXT;
-
-
 
 NTSTATUS
 SysAudioAllocateDeviceHeader(