[ros-diffs] [janderwald] 44311: - Implement IOCTL_RESET_STREAM which is required for waveInReset waveOutReset

Author: janderwald
Date: Sat Nov 28 18:06:22 2009
New Revision: 44311

URL: http://svn.reactos.org/svn/reactos?rev=44311&view=rev
Log:
- Implement IOCTL_RESET_STREAM which is required for waveInReset waveOutReset

Modified:
    trunk/reactos/drivers/wdm/audio/legacy/wdmaud/control.c
    trunk/reactos/drivers/wdm/audio/legacy/wdmaud/interface.h

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] Sat Nov 28
18:06:22 2009
@@ -314,6 +314,38 @@
     }
 
     return SetIrpIoStatus(Irp, STATUS_INVALID_DEVICE_REQUEST,
sizeof(WDMAUD_DEVICE_INFO));
+}
+
+NTSTATUS
+NTAPI
+WdmAudResetStream(
+    IN  PDEVICE_OBJECT DeviceObject,
+    IN  PIRP Irp,
+    IN  PWDMAUD_DEVICE_INFO DeviceInfo)
+{
+    KSRESET ResetStream;
+    NTSTATUS Status;
+    ULONG BytesReturned;
+    PFILE_OBJECT FileObject;
+
+    DPRINT("WdmAudResetStream\n");
+
+    Status = ObReferenceObjectByHandle(DeviceInfo->hDevice, GENERIC_READ |
GENERIC_WRITE, IoFileObjectType, KernelMode, (PVOID*)&FileObject, NULL);
+    if (!NT_SUCCESS(Status))
+    {
+        DPRINT1("Error: invalid device handle provided %p Type %x\n",
DeviceInfo->hDevice, DeviceInfo->DeviceType);
+        return SetIrpIoStatus(Irp, STATUS_UNSUCCESSFUL, 0);
+    }
+
+    ResetStream = DeviceInfo->u.ResetStream;
+    ASSERT(ResetStream == KSRESET_BEGIN || ResetStream == KSRESET_END);
+
+    Status = KsSynchronousIoControlDevice(FileObject, KernelMode, IOCTL_KS_RESET_STATE,
(PVOID)&ResetStream, sizeof(KSRESET), NULL, 0, &BytesReturned);
+
+    ObDereferenceObject(FileObject);
+
+    DPRINT("WdmAudResetStream Status %x\n", Status);
+    return SetIrpIoStatus(Irp, Status, sizeof(WDMAUD_DEVICE_INFO));
 }
 
 NTSTATUS
@@ -382,6 +414,8 @@
             return WdmAudGetDeviceInterface(DeviceObject, Irp, DeviceInfo);
         case IOCTL_GET_MIXER_EVENT:
             return WdmAudGetMixerEvent(DeviceObject, Irp, DeviceInfo, ClientInfo);
+        case IOCTL_RESET_STREAM:
+            return WdmAudResetStream(DeviceObject, Irp, DeviceInfo);
         case IOCTL_GETPOS:
         case IOCTL_GETDEVID:
         case IOCTL_GETVOLUME:

Modified: trunk/reactos/drivers/wdm/audio/legacy/wdmaud/interface.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/legacy/w…
==============================================================================
--- trunk/reactos/drivers/wdm/audio/legacy/wdmaud/interface.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/legacy/wdmaud/interface.h [iso-8859-1] Sat Nov 28
18:06:22 2009
@@ -57,6 +57,7 @@
             ULONG Value;
         }MixerEvent;
         KSSTATE State;
+        KSRESET ResetStream;
         ULONG Volume;
         ULONG FrameSize;
         HANDLE hNotifyEvent;
@@ -346,7 +347,7 @@
 
 /// IOCTL_GET_MIXER_EVENT
 ///
-/// Description: This IOCTL queries for 
+/// Description: This IOCTL queries for wdmaud driver if there any new kernel streaming
events available
 ///
 /// Arguments:  InputBuffer is a pointer to a WDMAUD_DEVICE_INFO structure,
 ///             InputBufferSize is size of WDMAUD_DEVICE_INFO structure
@@ -360,5 +361,18 @@
              METHOD_BUFFERED, \
              FILE_CREATE_TREE_CONNECTION | FILE_ANY_ACCESS)
 
-
+/// IOCTL_RESET_STREAM
+///
+/// Description: This IOCTL instructs wdmaud to reset a stream
+///
+/// Arguments:  InputBuffer is a pointer to a WDMAUD_DEVICE_INFO structure,
+///             InputBufferSize is size of WDMAUD_DEVICE_INFO structure
+/// Note:       The hDevice member must be set and DeviceType
+/// ReturnCode:  STATUS_SUCCESS indicates success
+
+#define IOCTL_RESET_STREAM \
+    CTL_CODE(FILE_DEVICE_SOUND, \
+             17, \
+             METHOD_BUFFERED, \
+             FILE_CREATE_TREE_CONNECTION | FILE_ANY_ACCESS)
 #endif