reactos/drivers/input/sermouse/internaldevctl.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS Serial mouse driver
   4  * FILE:            drivers/input/sermouse/internaldevctl.c
   5  * PURPOSE:         IRP_MJ_INTERNAL_DEVICE_CONTROL operations
   6  *
   7  * PROGRAMMERS:     Hervé Poussineau (hpoussin@reactos.org)
   8  */
   9
  10 #define NDEBUG
  11 #include <debug.h>
  12
  13 #include "sermouse.h"
  14
  15 NTSTATUS NTAPI
  16 SermouseInternalDeviceControl(
  17         IN PDEVICE_OBJECT DeviceObject,
  18         IN PIRP Irp)
  19 {
  20         PSERMOUSE_DEVICE_EXTENSION DeviceExtension;
  21         PIO_STACK_LOCATION Stack;
  22         NTSTATUS Status;
  23
  24         DeviceExtension = (PSERMOUSE_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  25         Stack = IoGetCurrentIrpStackLocation(Irp);
  26
  27         switch (Stack->Parameters.DeviceIoControl.IoControlCode)
  28         {
  29                 case IOCTL_INTERNAL_MOUSE_CONNECT:
  30                 {
  31                         DPRINT("IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_INTERNAL_MOUSE_CONNECT\n");
  32                         DeviceExtension->ConnectData =
  33                                 *((PCONNECT_DATA)Stack->Parameters.DeviceIoControl.Type3InputBuffer);
  34
  35                         /* Start read loop */
  36                         Status = PsCreateSystemThread(
  37                                 &DeviceExtension->WorkerThreadHandle,
  38                                 (ACCESS_MASK)0L,
  39                                 NULL,
  40                                 NULL,
  41                                 NULL,
  42                                 SermouseDeviceWorker,
  43                                 DeviceObject);
  44                         break;
  45                 }
  46                 case IOCTL_INTERNAL_MOUSE_DISCONNECT:
  47                 {
  48                         DPRINT("IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_INTERNAL_MOUSE_DISCONNECT\n");
  49
  50                         /* Ask read loop to end */
  51                         KeSetEvent(&DeviceExtension->StopWorkerThreadEvent, (KPRIORITY)0, FALSE);
  52                         Status = STATUS_SUCCESS;
  53                         break;
  54                 }
  55                 case IOCTL_MOUSE_QUERY_ATTRIBUTES:
  56                 {
  57                         DPRINT("IRP_MJ_INTERNAL_DEVICE_CONTROL / IOCTL_MOUSE_QUERY_ATTRIBUTES\n");
  58                         if (Stack->Parameters.DeviceIoControl.OutputBufferLength >= sizeof(MOUSE_ATTRIBUTES))
  59                         {
  60                                 *(PMOUSE_ATTRIBUTES)Irp->AssociatedIrp.SystemBuffer =
  61                                         DeviceExtension->AttributesInformation;
  62                                 Irp->IoStatus.Information = sizeof(MOUSE_ATTRIBUTES);
  63                                 Status = STATUS_SUCCESS;
  64                         } else {
  65                                 Status = STATUS_BUFFER_TOO_SMALL;
  66                         }
  67                         break;
  68                 }
  69                 default:
  70                 {
  71                         DPRINT1("IRP_MJ_INTERNAL_DEVICE_CONTROL / unknown ioctl code 0x%lx\n",
  72                                 Stack->Parameters.DeviceIoControl.IoControlCode);
  73                         Status = STATUS_INVALID_DEVICE_REQUEST;
  74                         break;
  75                 }
  76         }
  77
  78         Irp->IoStatus.Status = Status;
  79         if (Status == STATUS_PENDING)
  80         {
  81                 IoMarkIrpPending(Irp);
  82                 IoStartPacket(DeviceObject, Irp, NULL, NULL);
  83         }
  84         else
  85         {
  86                 IoCompleteRequest(Irp, IO_NO_INCREMENT);
  87         }
  88
  89         return Status;
  90 }