reactos/drivers/bus/acpi/ospm/acpisys.c

   1 /* $Id$
   2  *
   3  * PROJECT:         ReactOS ACPI bus driver
   4  * FILE:            acpi/ospm/acpisys.c
   5  * PURPOSE:         Driver entry
   6  * PROGRAMMERS:     Casper S. Hornstrup (chorns@users.sourceforge.net)
   7  * UPDATE HISTORY:
   8  *      01-05-2001  CSH  Created
   9  */
  10 #include <acpisys.h>
  11 #include <bm.h>
  12 #include <bn.h>
  13
  14 #define NDEBUG
  15 #include <debug.h>
  16
  17 #ifdef  ALLOC_PRAGMA
  18
  19 // Make the initialization routines discardable, so that they
  20 // don't waste space
  21
  22 #pragma  alloc_text(init, DriverEntry)
  23
  24 #endif  /*  ALLOC_PRAGMA  */
  25
  26
  27 NTSTATUS
  28 STDCALL
  29 ACPIDispatchDeviceControl(
  30   IN PDEVICE_OBJECT DeviceObject,
  31   IN PIRP Irp)
  32 {
  33   PIO_STACK_LOCATION IrpSp;
  34   NTSTATUS Status;
  35
  36   DPRINT("Called. IRP is at (0x%X)\n", Irp);
  37
  38   Irp->IoStatus.Information = 0;
  39
  40   IrpSp  = IoGetCurrentIrpStackLocation(Irp);
  41   switch (IrpSp->Parameters.DeviceIoControl.IoControlCode) {
  42   default:
  43     DPRINT("Unknown IOCTL 0x%X\n", IrpSp->Parameters.DeviceIoControl.IoControlCode);
  44     Status = STATUS_NOT_IMPLEMENTED;
  45     break;
  46   }
  47
  48   if (Status != STATUS_PENDING) {
  49     Irp->IoStatus.Status = Status;
  50
  51     DPRINT("Completing IRP at 0x%X\n", Irp);
  52
  53     IoCompleteRequest(Irp, IO_NO_INCREMENT);
  54   }
  55
  56   DPRINT("Leaving. Status 0x%X\n", Status);
  57
  58   return Status;
  59 }
  60
  61
  62 NTSTATUS
  63 STDCALL
  64 ACPIPnpControl(
  65   IN PDEVICE_OBJECT DeviceObject,
  66   IN PIRP Irp)
  67 /*
  68  * FUNCTION: Handle Plug and Play IRPs
  69  * ARGUMENTS:
  70  *     DeviceObject = Pointer to PDO or FDO
  71  *     Irp          = Pointer to IRP that should be handled
  72  * RETURNS:
  73  *     Status
  74  */
  75 {
  76   PCOMMON_DEVICE_EXTENSION DeviceExtension;
  77   NTSTATUS Status;
  78
  79   DPRINT("Called\n");
  80
  81   DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  82
  83   if (DeviceExtension->IsFDO) {
  84     Status = FdoPnpControl(DeviceObject, Irp);
  85   } else {
  86     Status = PdoPnpControl(DeviceObject, Irp);
  87   }
  88
  89   return Status;
  90 }
  91
  92
  93 NTSTATUS
  94 STDCALL
  95 ACPIPowerControl(
  96   IN PDEVICE_OBJECT DeviceObject,
  97   IN PIRP Irp)
  98 {
  99   PCOMMON_DEVICE_EXTENSION DeviceExtension;
 100   NTSTATUS Status;
 101
 102   DPRINT("Called\n");
 103
 104   DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
 105
 106   if (DeviceExtension->IsFDO) {
 107     Status = FdoPowerControl(DeviceObject, Irp);
 108   } else {
 109     Status = PdoPowerControl(DeviceObject, Irp);
 110   }
 111
 112   return Status;
 113 }
 114
 115
 116 NTSTATUS
 117 STDCALL
 118 ACPIAddDevice(
 119   IN PDRIVER_OBJECT DriverObject,
 120   IN PDEVICE_OBJECT PhysicalDeviceObject)
 121 {
 122   PFDO_DEVICE_EXTENSION DeviceExtension;
 123   PDEVICE_OBJECT Fdo;
 124   NTSTATUS Status;
 125
 126   DPRINT("Called\n");
 127
 128   Status = IoCreateDevice(DriverObject,
 129                           sizeof(FDO_DEVICE_EXTENSION),
 130                           NULL,
 131                           FILE_DEVICE_ACPI,
 132                           FILE_DEVICE_SECURE_OPEN,
 133                           TRUE,
 134                           &Fdo);
 135   if (!NT_SUCCESS(Status))
 136   {
 137     DPRINT("IoCreateDevice() failed with status 0x%X\n", Status);
 138     return Status;
 139   }
 140
 141   DeviceExtension = (PFDO_DEVICE_EXTENSION)Fdo->DeviceExtension;
 142
 143   DeviceExtension->Pdo = PhysicalDeviceObject;
 144   DeviceExtension->Common.IsFDO = TRUE;
 145
 146   DeviceExtension->Common.Ldo =
 147     IoAttachDeviceToDeviceStack(Fdo, PhysicalDeviceObject);
 148
 149   DeviceExtension->State = dsStopped;
 150
 151   Fdo->Flags &= ~DO_DEVICE_INITIALIZING;
 152
 153   DPRINT("Done AddDevice\n");
 154
 155   return STATUS_SUCCESS;
 156 }
 157
 158
 159 NTSTATUS
 160 STDCALL
 161 DriverEntry(
 162   IN PDRIVER_OBJECT DriverObject,
 163   IN PUNICODE_STRING RegistryPath)
 164 {
 165   DPRINT("Advanced Configuration and Power Interface Bus Driver\n");
 166
 167   DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = (PDRIVER_DISPATCH) ACPIDispatchDeviceControl;
 168   DriverObject->MajorFunction[IRP_MJ_PNP] = (PDRIVER_DISPATCH) ACPIPnpControl;
 169   DriverObject->MajorFunction[IRP_MJ_POWER] = (PDRIVER_DISPATCH) ACPIPowerControl;
 170   DriverObject->DriverExtension->AddDevice = ACPIAddDevice;
 171
 172   return STATUS_SUCCESS;
 173 }
 174
 175 /* EOF */