subsys/win32k/ntuser/input.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:        See COPYING in the top level directory
   4  * PROJECT:          ReactOS kernel
   5  * PURPOSE:          Window classes
   6  * FILE:             subsys/win32k/ntuser/class.c
   7  * PROGRAMER:        Casper S. Hornstrup (chorns@users.sourceforge.net)
   8  * REVISION HISTORY:
   9  *       06-06-2001  CSH  Created
  10  */
  11
  12 /* INCLUDES ******************************************************************/
  13
  14 #include <ddk/ntddk.h>
  15 #include <win32k/win32k.h>
  16 #include <win32k/userobj.h>
  17 #include <include/class.h>
  18 #include <include/error.h>
  19 #include <include/winsta.h>
  20 #include <include/msgqueue.h>
  21 #include "../../drivers/input/include/mouse.h"
  22
  23 #define NDEBUG
  24 #include <debug.h>
  25
  26 /* GLOBALS *******************************************************************/
  27
  28 static HANDLE MouseDeviceHandle;
  29 static HANDLE KeyboardThreadHandle;
  30 static CLIENT_ID KeyboardThreadId;
  31 static HANDLE KeyboardDeviceHandle;
  32 static KEVENT InputThreadsStart;
  33 static BOOLEAN InputThreadsRunning = FALSE;
  34
  35 VOID MouseGDICallBack(PMOUSE_INPUT_DATA Data, ULONG InputCount);
  36
  37 /* FUNCTIONS *****************************************************************/
  38
  39 NTSTATUS STDCALL STATIC
  40 KeyboardThreadMain(PVOID StartContext)
  41 {
  42   UNICODE_STRING KeyboardDeviceName;
  43   OBJECT_ATTRIBUTES KeyboardObjectAttributes;
  44   IO_STATUS_BLOCK Iosb;
  45   NTSTATUS Status;
  46
  47   RtlInitUnicodeStringFromLiteral(&KeyboardDeviceName, L"\\??\\Keyboard");
  48   InitializeObjectAttributes(&KeyboardObjectAttributes,
  49                              &KeyboardDeviceName,
  50                              0,
  51                              NULL,
  52                              NULL);
  53   Status = NtOpenFile(&KeyboardDeviceHandle,
  54                       FILE_ALL_ACCESS,
  55                       &KeyboardObjectAttributes,
  56                       &Iosb,
  57                       0,
  58                       FILE_SYNCHRONOUS_IO_ALERT);
  59   if (!NT_SUCCESS(Status))
  60     {
  61       DbgPrint("W32K: Failed to open keyboard.\n");
  62       return(Status);
  63     }
  64
  65   for (;;)
  66     {
  67       /*
  68        * Wait to start input.
  69        */
  70       Status = KeWaitForSingleObject(&InputThreadsStart,
  71                                      0,
  72                                      UserMode,
  73                                      TRUE,
  74                                      NULL);
  75       /*
  76        * Receive and process keyboard input.
  77        */
  78       while (InputThreadsRunning)
  79         {
  80           KEY_EVENT_RECORD KeyEvent;
  81           LPARAM lParam;
  82
  83           Status = NtReadFile (KeyboardDeviceHandle,
  84                                NULL,
  85                                NULL,
  86                                NULL,
  87                                &Iosb,
  88                                &KeyEvent,
  89                                sizeof(KEY_EVENT_RECORD),
  90                                NULL,
  91                                NULL);
  92           if (Status == STATUS_ALERTED && !InputThreadsRunning)
  93             {
  94               break;
  95             }
  96           if (!NT_SUCCESS(Status))
  97             {
  98               DbgPrint("W32K: Failed to read from keyboard.\n");
  99               return(Status);
 100             }
 101
 102           /*
 103            * Post a keyboard message.
 104            */
 105           if (KeyEvent.bKeyDown)
 106             {
 107               /* FIXME: Bit 24 indicates if this is an extended key. */
 108               lParam = KeyEvent.wRepeatCount |
 109                 ((KeyEvent.wVirtualScanCode << 16) & 0x00FF0000) | 0x40000000;
 110               MsqPostKeyboardMessage(WM_KEYDOWN, KeyEvent.wVirtualKeyCode,
 111                                      lParam);
 112             }
 113           else
 114             {
 115               /* FIXME: Bit 24 indicates if this is an extended key. */
 116               lParam = KeyEvent.wRepeatCount |
 117                 ((KeyEvent.wVirtualScanCode << 16) & 0x00FF0000) | 0xC0000000;
 118               MsqPostKeyboardMessage(WM_KEYUP, KeyEvent.wVirtualKeyCode,
 119                                      lParam);
 120             }
 121         }
 122     }
 123 }
 124
 125 NTSTATUS STDCALL
 126 NtUserAcquireOrReleaseInputOwnership(BOOLEAN Release)
 127 {
 128   if (Release && InputThreadsRunning)
 129     {
 130       KeClearEvent(&InputThreadsStart);
 131       InputThreadsRunning = FALSE;
 132       NtAlertThread(KeyboardThreadHandle);
 133     }
 134   else if (!Release && !InputThreadsRunning)
 135     {
 136       InputThreadsRunning = TRUE;
 137       KeSetEvent(&InputThreadsStart, IO_NO_INCREMENT, FALSE);
 138     }
 139   return(STATUS_SUCCESS);
 140 }
 141
 142 NTSTATUS
 143 InitInputImpl(VOID)
 144 {
 145   NTSTATUS Status;
 146   UNICODE_STRING MouseDeviceName;
 147   OBJECT_ATTRIBUTES MouseObjectAttributes;
 148   IO_STATUS_BLOCK Iosb;
 149   PIRP Irp;
 150   PFILE_OBJECT FileObject;
 151   GDI_INFORMATION GdiInfo;
 152   KEVENT IoEvent;
 153   PIO_STACK_LOCATION StackPtr;
 154
 155   KeInitializeEvent(&InputThreadsStart, NotificationEvent, FALSE);
 156
 157   Status = PsCreateSystemThread(&KeyboardThreadHandle,
 158                                 THREAD_ALL_ACCESS,
 159                                 NULL,
 160                                 NULL,
 161                                 &KeyboardThreadId,
 162                                 KeyboardThreadMain,
 163                                 NULL);
 164   if (!NT_SUCCESS(Status))
 165     {
 166       DbgPrint("W32K: Failed to create keyboard thread.\n");
 167     }
 168
 169   /*
 170    * Connect to the mouse class driver.
 171    */
 172   RtlInitUnicodeStringFromLiteral(&MouseDeviceName, L"\\??\\MouseClass");
 173   InitializeObjectAttributes(&MouseObjectAttributes,
 174                              &MouseDeviceName,
 175                              0,
 176                              NULL,
 177                              NULL);
 178   Status = NtOpenFile(&MouseDeviceHandle,
 179                       FILE_ALL_ACCESS,
 180                       &MouseObjectAttributes,
 181                       &Iosb,
 182                       0,
 183                       0);
 184   if (!NT_SUCCESS(Status))
 185     {
 186       DbgPrint("W32K: Failed to open mouse.\n");
 187       return(Status);
 188     }
 189   Status = ObReferenceObjectByHandle(MouseDeviceHandle,
 190                                      FILE_READ_DATA | FILE_WRITE_DATA,
 191                                      IoFileObjectType,
 192                                      KernelMode,
 193                                      (PVOID *) &FileObject,
 194                                      NULL);
 195
 196    if (!NT_SUCCESS(Status))
 197      {
 198        DbgPrint("W32K: Failed to reference mouse file object.\n");
 199        return(Status);
 200      }
 201    KeInitializeEvent(&IoEvent, FALSE, NotificationEvent);
 202    GdiInfo.CallBack = MouseGDICallBack;
 203    Irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_MOUSE_CONNECT,
 204                                        FileObject->DeviceObject,
 205                                        &GdiInfo,
 206                                        sizeof(GdiInfo),
 207                                        NULL,
 208                                        0,
 209                                        TRUE,
 210                                        &FileObject->Event,
 211                                        &Iosb);
 212    StackPtr = IoGetNextIrpStackLocation(Irp);
 213    StackPtr->FileObject = FileObject;
 214    StackPtr->DeviceObject = FileObject->DeviceObject;
 215    StackPtr->Parameters.DeviceIoControl.InputBufferLength = sizeof(GdiInfo);
 216    StackPtr->Parameters.DeviceIoControl.OutputBufferLength = 0;
 217
 218    Status = IoCallDriver(FileObject->DeviceObject, Irp);
 219    if (Status == STATUS_PENDING)
 220      {
 221        KeWaitForSingleObject(&FileObject->Event, Executive, KernelMode, FALSE,
 222                              NULL);
 223        Status = Iosb.Status;
 224      }
 225    if (!NT_SUCCESS(Status))
 226      {
 227        DbgPrint("W32K: Failed to connect to mouse driver.\n");
 228        return(Status);
 229      }
 230
 231    return(STATUS_SUCCESS);
 232 }
 233
 234 NTSTATUS
 235 CleanupInputImp(VOID)
 236 {
 237   return(STATUS_SUCCESS);
 238 }
 239
 240 /* EOF */