return WdmAudSetControlDetails(DeviceObject, Irp, DeviceInfo, ClientInfo);
case IOCTL_GETCONTROLDETAILS:
return WdmAudGetControlDetails(DeviceObject, Irp, DeviceInfo, ClientInfo);
-
case IOCTL_GETPOS:
case IOCTL_GETDEVID:
case IOCTL_GETVOLUME:
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)
{
- PIO_STACK_LOCATION IoStack;
+ NTSTATUS Status;
PWDMAUD_DEVICE_INFO DeviceInfo;
- PWDMAUD_CLIENT ClientInfo;
- NTSTATUS Status = STATUS_SUCCESS;
- PUCHAR Buffer;
PFILE_OBJECT FileObject;
+ PIO_STACK_LOCATION IoStack;
+ 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");
+ /* store the input buffer in UserBuffer - as KsProbeStreamIrp operates on IRP_MJ_DEVICE_CONTROL */
+ Irp->UserBuffer = MmGetMdlVirtualAddress(Irp->MdlAddress);
- 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);
- }
+ /* sanity check */
+ ASSERT(Irp->UserBuffer);
- DeviceInfo = (PWDMAUD_DEVICE_INFO)MmGetMdlVirtualAddress(Irp->MdlAddress);
+ /* get the length of the request length */
+ Length = IoStack->Parameters.Write.Length;
+ /* store outputbuffer length */
+ IoStack->Parameters.DeviceIoControl.OutputBufferLength = Length;
- Status = ObReferenceObjectByHandle(DeviceInfo->hDevice, GENERIC_WRITE, IoFileObjectType, KernelMode, (PVOID*)&FileObject, NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Invalid buffer handle %x\n", DeviceInfo->hDevice);
- return SetIrpIoStatus(Irp, Status, 0);
- }
+ /* store mdl address */
+ Mdl = Irp->MdlAddress;
+ /* remove mdladdress as KsProbeStreamIrp will interprete it as an already probed audio buffer */
+ Irp->MdlAddress = NULL;
- //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);
- }
+ /* check for success */
- if (!IoStack->FileObject)
+ if (IoStack->MajorFunction == IRP_MJ_WRITE)
{
- /* file object parameter */
- DPRINT1("Error: file object is not attached\n");
- ObDereferenceObject(FileObject);
- return SetIrpIoStatus(Irp, STATUS_UNSUCCESSFUL, 0);
+ /* probe the write stream irp */
+ Status = KsProbeStreamIrp(Irp, KSPROBE_STREAMWRITE | KSPROBE_ALLOCATEMDL | KSPROBE_PROBEANDLOCK, Length);
}
- ClientInfo = (PWDMAUD_CLIENT)IoStack->FileObject->FsContext;
-
-
- /* setup stream context */
- Packet = (PCONTEXT_WRITE)ExAllocatePool(NonPagedPool, sizeof(CONTEXT_WRITE));
- if (!Packet)
+ else
{
- /* no memory */
- return SetIrpIoStatus(Irp, STATUS_NO_MEMORY, 0);
+ /* probe the read stream irp */
+ Status = KsProbeStreamIrp(Irp, KSPROBE_STREAMREAD | KSPROBE_ALLOCATEMDL | KSPROBE_PROBEANDLOCK, Length);
}
- 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;
+ /* now free the mdl */
+ IoFreeMdl(Mdl);
- Mdl = IoAllocateMdl(DeviceInfo->Header.Data, DeviceInfo->Header.DataUsed, FALSE, FALSE, FALSE);
- if (!Mdl)
+ if (!NT_SUCCESS(Status))
{
- /* no memory */
- ExFreePool(Packet);
- ObDereferenceObject(FileObject);
- ExFreePool(Buffer);
- return SetIrpIoStatus(Irp, STATUS_NO_MEMORY, 0);
+ DPRINT1("KsProbeStreamIrp failed with Status %x\n", Status);
+ return SetIrpIoStatus(Irp, Status, 0);
}
- _SEH2_TRY
- {
- MmProbeAndLockPages(Mdl, UserMode, IoReadAccess);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- /* Exception, get the error code */
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END;
+ /* 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 supplied\n");
- ExFreePool(Buffer);
- ExFreePool(Packet);
- IoFreeMdl(Mdl);
- ObDereferenceObject(FileObject);
+ DPRINT1("Invalid pin handle %x\n", DeviceInfo->hDevice);
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);
- /* 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);
- }
+ /* skip current irp stack location */
+ IoSkipCurrentIrpStackLocation(Irp);
/* get next stack location */
- IoStack = IoGetNextIrpStackLocation(LowerIrp);
+ IoStack = IoGetNextIrpStackLocation(Irp);
/* attach file object */
IoStack->FileObject = FileObject;
-
- /* set a completion routine */
- IoSetCompletionRoutine(LowerIrp, WdmAudWriteCompletion, (PVOID)Irp, TRUE, TRUE, TRUE);
+ IoStack->Parameters.Write.Length = sizeof(KSSTREAM_HEADER);
+ IoStack->MajorFunction = IRP_MJ_WRITE;
/* 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);
+ IoMarkIrpPending(Irp);
/* call the driver */
- Status = IoCallDriver(IoGetRelatedDeviceObject(FileObject), LowerIrp);
+ Status = IoCallDriver(IoGetRelatedDeviceObject(FileObject), Irp);
/* dereference file object */
ObDereferenceObject(FileObject);
- return STATUS_SUCCESS;
-#endif
+ return Status;
}
projects / reactos.git / blobdiff