subsystems/win32/win32k/eng/device.c

   1 /*
   2  *  ReactOS W32 Subsystem
   3  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id$
  20  *
  21  * COPYRIGHT:         See COPYING in the top level directory
  22  * PROJECT:           ReactOS kernel
  23  * PURPOSE:           GDI Driver Device Functions
  24  * FILE:              subsys/win32k/eng/device.c
  25  * PROGRAMER:         Jason Filby
  26  * REVISION HISTORY:
  27  *                 3/7/1999: Created
  28  */
  29
  30 #include <w32k.h>
  31
  32 #define NDEBUG
  33 #include <debug.h>
  34
  35 /*
  36  * @implemented
  37  */
  38 DWORD STDCALL
  39 EngDeviceIoControl(HANDLE  hDevice,
  40                    DWORD   dwIoControlCode,
  41                    LPVOID  lpInBuffer,
  42                    DWORD   nInBufferSize,
  43                    LPVOID  lpOutBuffer,
  44                    DWORD   nOutBufferSize,
  45                    DWORD *lpBytesReturned)
  46 {
  47   PIRP Irp;
  48   NTSTATUS Status;
  49   KEVENT Event;
  50   IO_STATUS_BLOCK Iosb;
  51   PDEVICE_OBJECT DeviceObject;
  52
  53   DPRINT("EngDeviceIoControl() called\n");
  54
  55   KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
  56
  57   DeviceObject = (PDEVICE_OBJECT) hDevice;
  58
  59   Irp = IoBuildDeviceIoControlRequest(dwIoControlCode,
  60                                       DeviceObject,
  61                                       lpInBuffer,
  62                                       nInBufferSize,
  63                                       lpOutBuffer,
  64                                       nOutBufferSize, FALSE, &Event, &Iosb);
  65
  66   Status = IoCallDriver(DeviceObject, Irp);
  67
  68   if (Status == STATUS_PENDING)
  69     {
  70       (VOID)KeWaitForSingleObject(&Event, Executive, KernelMode, TRUE, 0);
  71       Status = Iosb.Status;
  72     }
  73
  74   DPRINT("EngDeviceIoControl(): Returning %X/%X\n", Iosb.Status,
  75          Iosb.Information);
  76
  77   /* Return information to the caller about the operation. */
  78   *lpBytesReturned = Iosb.Information;
  79
  80   /* Convert NT status values to win32 error codes. */
  81   switch (Status)
  82     {
  83     case STATUS_INSUFFICIENT_RESOURCES: return ERROR_NOT_ENOUGH_MEMORY;
  84     case STATUS_BUFFER_OVERFLOW: return ERROR_MORE_DATA;
  85     case STATUS_NOT_IMPLEMENTED: return ERROR_INVALID_FUNCTION;
  86     case STATUS_INVALID_PARAMETER: return ERROR_INVALID_PARAMETER;
  87     case STATUS_BUFFER_TOO_SMALL: return ERROR_INSUFFICIENT_BUFFER;
  88     case STATUS_DEVICE_DOES_NOT_EXIST: return ERROR_DEV_NOT_EXIST;
  89     case STATUS_PENDING: return ERROR_IO_PENDING;
  90     }
  91   return Status;
  92 }
  93
  94 /* EOF */