drivers/input/sermouse/internaldevctl.c

   1 /*
   2  * PROJECT:     ReactOS Serial mouse driver
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        drivers/input/sermouse/fdo.c
   5  * PURPOSE:     IRP_MJ_INTERNAL_DEVICE_CONTROL operations
   6  * PROGRAMMERS: Copyright 2005-2006 Hervé Poussineau (hpoussin@reactos.org)
   7  */
   8
   9 #include "sermouse.h"
  10
  11 NTSTATUS NTAPI
  12 SermouseInternalDeviceControl(
  13         IN PDEVICE_OBJECT DeviceObject,
  14         IN PIRP Irp)
  15 {
  16         PSERMOUSE_DEVICE_EXTENSION DeviceExtension;
  17         PIO_STACK_LOCATION Stack;
  18         NTSTATUS Status;
  19
  20         DeviceExtension = (PSERMOUSE_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  21         Stack = IoGetCurrentIrpStackLocation(Irp);
  22
  23         switch (Stack->Parameters.DeviceIoControl.IoControlCode)
  24         {
  25                 case IOCTL_INTERNAL_MOUSE_CONNECT:
  26                 {
  27                         TRACE_(SERMOUSE, "IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_INTERNAL_MOUSE_CONNECT\n");
  28                         DeviceExtension->ConnectData =
  29                                 *((PCONNECT_DATA)Stack->Parameters.DeviceIoControl.Type3InputBuffer);
  30                         Status = STATUS_SUCCESS;
  31                         break;
  32                 }
  33                 case IOCTL_INTERNAL_MOUSE_DISCONNECT:
  34                 {
  35                         TRACE_(SERMOUSE, "IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_INTERNAL_MOUSE_DISCONNECT\n");
  36
  37                         /* Ask read loop to end */
  38                         KeSetEvent(&DeviceExtension->StopWorkerThreadEvent, (KPRIORITY)0, FALSE);
  39                         Status = STATUS_SUCCESS;
  40                         break;
  41                 }
  42                 case IOCTL_MOUSE_QUERY_ATTRIBUTES:
  43                 {
  44                         TRACE_(SERMOUSE, "IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_MOUSE_QUERY_ATTRIBUTES\n");
  45                         if (Stack->Parameters.DeviceIoControl.OutputBufferLength >= sizeof(MOUSE_ATTRIBUTES))
  46                         {
  47                                 *(PMOUSE_ATTRIBUTES)Irp->AssociatedIrp.SystemBuffer =
  48                                         DeviceExtension->AttributesInformation;
  49                                 Irp->IoStatus.Information = sizeof(MOUSE_ATTRIBUTES);
  50                                 Status = STATUS_SUCCESS;
  51                         }
  52                         else
  53                         {
  54                                 Status = STATUS_BUFFER_TOO_SMALL;
  55                         }
  56                         break;
  57                 }
  58                 default:
  59                 {
  60                         WARN_(SERMOUSE, "IRP_MJ_INTERNAL_DEVICE_CONTROL / unknown ioctl code 0x%lx\n",
  61                                 Stack->Parameters.DeviceIoControl.IoControlCode);
  62                         ASSERT(FALSE);
  63                         Status = STATUS_INVALID_DEVICE_REQUEST;
  64                         break;
  65                 }
  66         }
  67
  68         Irp->IoStatus.Status = Status;
  69         if (Status == STATUS_PENDING)
  70         {
  71                 IoMarkIrpPending(Irp);
  72                 IoStartPacket(DeviceObject, Irp, NULL, NULL);
  73         }
  74         else
  75         {
  76                 IoCompleteRequest(Irp, IO_NO_INCREMENT);
  77         }
  78
  79         return Status;
  80 }