rosapps/drivers/green/dispatch.c

   1 /*
   2  * PROJECT:     ReactOS VT100 emulator
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        drivers/base/green/dispatch.c
   5  * PURPOSE:     Dispatch routines
   6  * PROGRAMMERS: Copyright 2005-2006 Hervé Poussineau (hpoussin@reactos.org)
   7  */
   8
   9 #include "green.h"
  10
  11 #define NDEBUG
  12 #include <debug.h>
  13
  14 NTSTATUS NTAPI
  15 GreenDispatch(
  16         IN PDEVICE_OBJECT DeviceObject,
  17         IN PIRP Irp)
  18 {
  19         ULONG MajorFunction;
  20         GREEN_DEVICE_TYPE DeviceType;
  21         ULONG_PTR Information;
  22         NTSTATUS Status;
  23
  24         MajorFunction = IoGetCurrentIrpStackLocation(Irp)->MajorFunction;
  25         DeviceType = ((PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->Type;
  26
  27         Information = Irp->IoStatus.Information;
  28         Status = Irp->IoStatus.Status;
  29
  30         DPRINT("Dispatching major function 0x%lx, DeviceType %u\n",
  31                 MajorFunction, DeviceType);
  32
  33         if (DeviceType == PassThroughFDO)
  34         {
  35                 IoSkipCurrentIrpStackLocation(Irp);
  36                 return IoCallDriver(((PCOMMON_FDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice, Irp);
  37         }
  38         else if (MajorFunction == IRP_MJ_CREATE && (DeviceType == GreenFDO || DeviceType == KeyboardPDO || DeviceType == ScreenPDO))
  39                 return GreenCreate(DeviceObject, Irp);
  40         else if (MajorFunction == IRP_MJ_CLOSE && (DeviceType == GreenFDO || DeviceType == KeyboardPDO || DeviceType == ScreenPDO))
  41                 return GreenClose(DeviceObject, Irp);
  42         else if ((MajorFunction == IRP_MJ_CREATE || MajorFunction == IRP_MJ_CLOSE || MajorFunction == IRP_MJ_CLEANUP)
  43                 && (DeviceType == KeyboardFDO || DeviceType == ScreenFDO))
  44         {
  45                 IoSkipCurrentIrpStackLocation(Irp);
  46                 return IoCallDriver(((PCOMMON_FDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice, Irp);
  47         }
  48         else if (MajorFunction == IRP_MJ_INTERNAL_DEVICE_CONTROL && DeviceType == GreenFDO)
  49         {
  50                 return KeyboardInternalDeviceControl(
  51                         ((PGREEN_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->KeyboardFdo,
  52                         Irp);
  53         }
  54         else if (MajorFunction == IRP_MJ_INTERNAL_DEVICE_CONTROL && DeviceType == KeyboardFDO)
  55                 return KeyboardInternalDeviceControl(DeviceObject, Irp);
  56         else if (MajorFunction == IRP_MJ_DEVICE_CONTROL && DeviceType == GreenFDO)
  57         {
  58                 return ScreenDeviceControl(
  59                         ((PGREEN_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->ScreenFdo,
  60                         Irp);
  61         }
  62         else if (MajorFunction == IRP_MJ_DEVICE_CONTROL && DeviceType == ScreenFDO)
  63                 return ScreenDeviceControl(DeviceObject, Irp);
  64         else if (MajorFunction == IRP_MJ_WRITE && DeviceType == ScreenFDO)
  65                 return ScreenWrite(DeviceObject, Irp);
  66         else if (MajorFunction == IRP_MJ_PNP && (DeviceType == KeyboardFDO || DeviceType == ScreenFDO))
  67         {
  68                 IoSkipCurrentIrpStackLocation(Irp);
  69                 return IoCallDriver(((PCOMMON_FDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice, Irp);
  70         }
  71         else if (MajorFunction == IRP_MJ_PNP && (DeviceType == GreenFDO || DeviceType == KeyboardPDO || DeviceType == ScreenPDO))
  72                 return GreenPnp(DeviceObject, Irp);
  73         else if (MajorFunction == IRP_MJ_POWER && DeviceType == GreenFDO)
  74                 return GreenPower(DeviceObject, Irp);
  75         else
  76         {
  77                 DPRINT1("Unknown combination: MajorFunction 0x%lx, DeviceType %d\n",
  78                         MajorFunction, DeviceType);
  79                 switch (DeviceType)
  80                 {
  81                         case KeyboardFDO:
  82                         case ScreenFDO:
  83                         {
  84                                 IoSkipCurrentIrpStackLocation(Irp);
  85                                 return IoCallDriver(((PCOMMON_FDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice, Irp);
  86                         }
  87                         case GreenFDO:
  88                         {
  89                                 PDRIVER_OBJECT DriverObject;
  90                                 PGREEN_DRIVER_EXTENSION DriverExtension;
  91                                 DriverObject = DeviceObject->DriverObject;
  92                                 DriverExtension = IoGetDriverObjectExtension(DriverObject, DriverObject);
  93                                 IoSkipCurrentIrpStackLocation(Irp);
  94                                 return IoCallDriver(DriverExtension->LowerDevice, Irp);
  95                         }
  96                         default:
  97                                 ASSERT(FALSE);
  98                 }
  99         }
 100
 101         Irp->IoStatus.Information = Information;
 102         Irp->IoStatus.Status = Status;
 103         IoCompleteRequest (Irp, IO_NO_INCREMENT);
 104         return Status;
 105 }