reactos/ntoskrnl/ex/power.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS kernel
   4  * FILE:            ntoskrnl/ex/power.c
   5  * PURPOSE:         Power managment
   6  * PROGRAMMER:      David Welch (welch@cwcom.net)
   7  * UPDATE HISTORY:
   8  *                  Created 22/05/98
   9  *                  Added reboot support 30/01/99
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ntoskrnl.h>
  15 #include <internal/debug.h>
  16
  17 /* FUNCTIONS *****************************************************************/
  18
  19 NTSTATUS STDCALL
  20 NtSetSystemPowerState(IN POWER_ACTION SystemAction,
  21                       IN SYSTEM_POWER_STATE MinSystemState,
  22                       IN ULONG Flags)
  23 {
  24   /* Windows 2000 only */
  25   return(STATUS_NOT_IMPLEMENTED);
  26 }
  27
  28 /*
  29  * @implemented
  30  */
  31 NTSTATUS STDCALL
  32 NtShutdownSystem(IN SHUTDOWN_ACTION Action)
  33 {
  34    if (Action > ShutdownPowerOff)
  35      return STATUS_INVALID_PARAMETER;
  36
  37    IoShutdownRegisteredDevices();
  38    CmShutdownRegistry();
  39    IoShutdownRegisteredFileSystems();
  40
  41    PiShutdownProcessManager();
  42    MiShutdownMemoryManager();
  43
  44    if (Action == ShutdownNoReboot)
  45      {
  46 #if 0
  47         /* Switch off */
  48         HalReturnToFirmware (FIRMWARE_OFF);
  49 #else
  50         PopSetSystemPowerState(PowerSystemShutdown);
  51
  52         Ke386DisableInterrupts();
  53
  54         while (TRUE)
  55           {
  56             ;
  57           }
  58 #endif
  59      }
  60    else if (Action == ShutdownReboot)
  61      {
  62         HalReturnToFirmware (FIRMWARE_REBOOT);
  63      }
  64    else
  65      {
  66         HalReturnToFirmware (FIRMWARE_HALT);
  67      }
  68
  69    return STATUS_SUCCESS;
  70 }
  71
  72 /* EOF */
  73