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 #include <debug.h>
  12
  13 NTSTATUS NTAPI
  14 SermouseInternalDeviceControl(
  15         IN PDEVICE_OBJECT DeviceObject,
  16         IN PIRP Irp)
  17 {
  18         PSERMOUSE_DEVICE_EXTENSION DeviceExtension;
  19         PIO_STACK_LOCATION Stack;
  20         NTSTATUS Status;
  21
  22         DeviceExtension = (PSERMOUSE_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  23         Stack = IoGetCurrentIrpStackLocation(Irp);
  24
  25         switch (Stack->Parameters.DeviceIoControl.IoControlCode)
  26         {
  27                 case IOCTL_INTERNAL_MOUSE_CONNECT:
  28                 {
  29                         TRACE_(SERMOUSE, "IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_INTERNAL_MOUSE_CONNECT\n");
  30                         DeviceExtension->ConnectData =
  31                                 *((PCONNECT_DATA)Stack->Parameters.DeviceIoControl.Type3InputBuffer);
  32                         Status = STATUS_SUCCESS;
  33                         break;
  34                 }
  35                 case IOCTL_INTERNAL_MOUSE_DISCONNECT:
  36                 {
  37                         TRACE_(SERMOUSE, "IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_INTERNAL_MOUSE_DISCONNECT\n");
  38
  39                         /* Ask read loop to end */
  40                         KeSetEvent(&DeviceExtension->StopWorkerThreadEvent, (KPRIORITY)0, FALSE);
  41                         Status = STATUS_SUCCESS;
  42                         break;
  43                 }
  44                 case IOCTL_MOUSE_QUERY_ATTRIBUTES:
  45                 {
  46                         TRACE_(SERMOUSE, "IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_MOUSE_QUERY_ATTRIBUTES\n");
  47                         if (Stack->Parameters.DeviceIoControl.OutputBufferLength >= sizeof(MOUSE_ATTRIBUTES))
  48                         {
  49                                 *(PMOUSE_ATTRIBUTES)Irp->AssociatedIrp.SystemBuffer =
  50                                         DeviceExtension->AttributesInformation;
  51                                 Irp->IoStatus.Information = sizeof(MOUSE_ATTRIBUTES);
  52                                 Status = STATUS_SUCCESS;
  53                         }
  54                         else
  55                         {
  56                                 Status = STATUS_BUFFER_TOO_SMALL;
  57                         }
  58                         break;
  59                 }
  60                 default:
  61                 {
  62                         WARN_(SERMOUSE, "IRP_MJ_INTERNAL_DEVICE_CONTROL / unknown ioctl code 0x%lx\n",
  63                                 Stack->Parameters.DeviceIoControl.IoControlCode);
  64                         ASSERT(FALSE);
  65                         Status = STATUS_INVALID_DEVICE_REQUEST;
  66                         break;
  67                 }
  68         }
  69
  70         Irp->IoStatus.Status = Status;
  71         if (Status == STATUS_PENDING)
  72         {
  73                 IoMarkIrpPending(Irp);
  74                 IoStartPacket(DeviceObject, Irp, NULL, NULL);
  75         }
  76         else
  77         {
  78                 IoCompleteRequest(Irp, IO_NO_INCREMENT);
  79         }
  80
  81         return Status;
  82 }