drivers/serial/serenum/serenum.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS Serial enumerator driver
   4  * FILE:            drivers/bus/serenum/serenum.c
   5  * PURPOSE:         Serial enumerator driver entry point
   6  *
   7  * PROGRAMMERS:     Hervé Poussineau (hpoussin@reactos.org)
   8  */
   9
  10 #include "serenum.h"
  11
  12 #include <debug.h>
  13
  14 static DRIVER_DISPATCH SerenumPnp;
  15 static DRIVER_DISPATCH IrpStub;
  16 static DRIVER_UNLOAD DriverUnload;
  17 DRIVER_INITIALIZE DriverEntry;
  18
  19 static NTSTATUS NTAPI
  20 SerenumPnp(
  21         IN PDEVICE_OBJECT DeviceObject,
  22         IN PIRP Irp)
  23 {
  24         if (((PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->IsFDO)
  25                 return SerenumFdoPnp(DeviceObject, Irp);
  26         else
  27                 return SerenumPdoPnp(DeviceObject, Irp);
  28 }
  29
  30 static VOID NTAPI
  31 DriverUnload(IN PDRIVER_OBJECT DriverObject)
  32 {
  33         // nothing to do here yet
  34 }
  35
  36 static NTSTATUS NTAPI
  37 IrpStub(
  38         IN PDEVICE_OBJECT DeviceObject,
  39         IN PIRP Irp)
  40 {
  41         if (((PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->IsFDO)
  42         {
  43                 /* Forward IRPs to lower device */
  44                 return ForwardIrpToLowerDeviceAndForget(DeviceObject, Irp);
  45         }
  46         else
  47         {
  48                 /* Forward IRPs to attached FDO */
  49                 return ForwardIrpToAttachedFdoAndForget(DeviceObject, Irp);
  50         }
  51 }
  52
  53 /*
  54  * Standard DriverEntry method.
  55  */
  56 NTSTATUS NTAPI
  57 DriverEntry(
  58         IN PDRIVER_OBJECT DriverObject,
  59         IN PUNICODE_STRING RegPath)
  60 {
  61         ULONG i;
  62
  63         DriverObject->DriverUnload = DriverUnload;
  64         DriverObject->DriverExtension->AddDevice = SerenumAddDevice;
  65
  66         for (i = 0; i <= IRP_MJ_MAXIMUM_FUNCTION; i++)
  67                 DriverObject->MajorFunction[i] = IrpStub;
  68
  69         //DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = SerialQueryInformation;
  70         DriverObject->MajorFunction[IRP_MJ_PNP] = SerenumPnp;
  71         //DriverObject->MajorFunction[IRP_MJ_POWER] = SerialPower;
  72
  73         return STATUS_SUCCESS;
  74 }