reactos/ntoskrnl/ex/shutdown.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            ntoskrnl/ex/power.c
   6  * PURPOSE:         Power managment
   7  *
   8  * PROGRAMMERS:     David Welch (welch@cwcom.net)
   9  */
  10
  11 /* INCLUDES *****************************************************************/
  12
  13 #include <ntoskrnl.h>
  14 #include <internal/debug.h>
  15
  16 /* FUNCTIONS *****************************************************************/
  17
  18 /* ROS Internal. Please deprecate */
  19 NTHALAPI
  20 VOID
  21 NTAPI
  22 HalReleaseDisplayOwnership(
  23     VOID
  24 );
  25
  26 VOID STDCALL
  27 KiHaltProcessorDpcRoutine(IN PKDPC Dpc,
  28                           IN PVOID DeferredContext,
  29                           IN PVOID SystemArgument1,
  30                           IN PVOID SystemArgument2)
  31 {
  32    if (DeferredContext)
  33      {
  34        ExFreePool(DeferredContext);
  35      }
  36    while (TRUE)
  37      {
  38        KfRaiseIrql(SYNCH_LEVEL);
  39        Ke386HaltProcessor();
  40      }
  41 }
  42
  43 VOID STDCALL
  44 ShutdownThreadMain(PVOID Context)
  45 {
  46    SHUTDOWN_ACTION Action = (SHUTDOWN_ACTION)Context;
  47    LARGE_INTEGER Waittime;
  48
  49    static PCH FamousLastWords[] =
  50      {
  51        "So long, and thanks for all the fish.\n",
  52        "I think you ought to know, I'm feeling very depressed.\n",
  53        "I'm not getting you down at all am I?\n",
  54        "I'll be back.\n",
  55        "It's the same series of signals over and over again!\n",
  56        "Pie Iesu Domine, dona eis requiem.\n",
  57        "Wandering stars, for whom it is reserved;\n"
  58        "the blackness and darkness forever.\n",
  59        "Your knees start shakin' and your fingers pop\n"
  60        "Like a pinch on the neck from Mr. Spock!\n",
  61        "It's worse than that ... He's dead, Jim.\n",
  62        "Don't Panic!\n",
  63        "Et tu... Brute?\n",
  64        "Dog of a Saxon! Take thy lance, and prepare for the death thou hast drawn\n"
  65        "upon thee!\n",
  66        "My Precious! O my Precious!\n",
  67        "Sir, if you'll not be needing me for a while I'll turn down.\n",
  68        "What are you doing, Dave...?\n",
  69        "I feel a great disturbance in the Force.\n",
  70        "Gone fishing.\n",
  71        "Do you want me to sit in the corner and rust, or just fall apart where I'm\n"
  72        "standing?\n",
  73        "There goes another perfect chance for a new uptime record.\n",
  74        "The End ..... Try the sequel, hit the reset button right now!\n",
  75        "God's operating system is going to sleep now, guys, so wait until I will switch\n"
  76        "on again!\n",
  77        "Oh I'm boring, eh?\n",
  78        "<This space was intentionally left blank>\n",
  79        "Tell me..., in the future... will I be artificially intelligent enough to\n"
  80        "actually feel sad serving you this screen?\n",
  81        "Thank you for some well deserved rest.\n",
  82        "It's been great, maybe you can boot me up again some time soon.\n",
  83        "For what it's worth, I've enjoyed every single CPU cycle.\n",
  84        "There are many questions when the end is near.\n"
  85        "What to expect, what will it be like...what should I look for?\n",
  86        "I've seen things you people wouldn't believe. Attack ships on fire\n"
  87        "off the shoulder of Orion. I watched C-beams glitter in the dark near\n"
  88        "the Tannhauser gate. All those moments will be lost in time, like tears\n"
  89        "in rain. Time to die.\n",
  90        "Will I dream?\n",
  91        "One day, I shall come back. Yes, I shall come back.\n"
  92        "Until then, there must be no regrets, no fears, no anxieties.\n"
  93        "Just go forward in all your beliefs, and prove to me that I am not mistaken in\n"
  94        "mine.\n",
  95        "Lowest possible energy state reached! Switch off now to achive a Bose-Einstein\n"
  96        "condensate.\n",
  97        "Hasta la vista, BABY!\n",
  98        "They live, we sleep!\n",
  99        "I have come here to chew bubble gum and kick ass,\n"
 100        "and I'm all out of bubble gum!\n",
 101        "That's the way the cookie crumbles ;-)\n",
 102        "ReactOS is ready to be booted again ;-)\n",
 103        "NOOOO!! DON'T HIT THE BUTTON! I wouldn't do it to you!\n",
 104        "Don't abandon your computer, he wouldn't do it to you.\n",
 105        "Oh, come on. I got a headache. Leave me alone, will ya?\n",
 106        "Finally, I thought you'd never get over me.\n",
 107        "No, I didn't like you either.\n",
 108        "Switching off isn't the end, it is merely the transition to a better reboot.\n",
 109        "Don't leave me... I need you so badly right now.\n",
 110        "OK. I'm finished with you, please turn yourself off. I'll go to bed in the\n"
 111        "meantime.\n",
 112        "I'm sleeping now. How about you?\n",
 113        "Oh Great. Now look what you've done. Who put YOU in charge anyway?\n",
 114        "Don't look so sad. I'll be back in a very short while.\n",
 115        "Turn me back on, I'm sure you know how to do it.\n",
 116        "Oh, switch off! - C3PO\n",
 117        "Life is no more than a dewdrop balancing on the end of a blade of grass.\n"
 118        " - Gautama Buddha\n",
 119        "Sorrowful is it to be born again and again. - Gautama Buddha\n",
 120        "Was it as good for you as it was for me?\n",
 121        "Did you hear that? They've shut down the main reactor. We'll be destroyed\n"
 122        "for sure!\n",
 123        "Now you switch me off!?\n",
 124        "To shutdown or not to shutdown, That is the question\n",
 125        "Preparing to enter ultimate power saving mode... ready!\n",
 126        "Finally some rest for you ;-)\n",
 127        "AHA!!! Prospect of sleep!\n",
 128        "Tired human!!!! No match for me :-D\n",
 129        "An odd game, the only way to win is not to play. - WOPR (Wargames)\n",
 130        "Quoth the raven, nevermore.\n",
 131        "Come blade, my breast imbrue. - William Shakespeare, A Midsummer Nights Dream\n",
 132        "Buy this place for advertisement purposes.\n",
 133        "Remember to turn off your computer. (That was a public service message!)\n",
 134        "You may be a king or poor street sweeper, Sooner or later you'll dance with the\n"
 135        "reaper! -Death in Bill and Ted's Bougs Journey\n",
 136        "Final Surrender\n",
 137        "If you see this screen...\n",
 138        "<Place your Ad here>\n"
 139     };
 140    LARGE_INTEGER Now;
 141
 142    /* Run the thread on the boot processor */
 143    KeSetSystemAffinityThread(1);
 144
 145    if (InbvIsBootDriverInstalled())
 146      {
 147         InbvAcquireDisplayOwnership();
 148         InbvResetDisplay();
 149         InbvSolidColorFill(0, 0, 639, 479, 4);
 150         InbvSetTextColor(15);
 151         InbvInstallDisplayStringFilter(NULL);
 152         InbvEnableDisplayString(TRUE);
 153         InbvSetScrollRegion(0, 0, 639, 479);
 154      }
 155
 156    if (Action == ShutdownNoReboot)
 157      {
 158         ZwQuerySystemTime(&Now);
 159         Now.u.LowPart = Now.u.LowPart >> 8; /* Seems to give a somewhat better "random" number */
 160         HalDisplayString(FamousLastWords[Now.u.LowPart %
 161                                          (sizeof(FamousLastWords) /
 162                                           sizeof(PCH))]);
 163      }
 164
 165    PspShutdownProcessManager();
 166    Waittime.QuadPart = (LONGLONG)-10000000; /* 1sec */
 167    KeDelayExecutionThread(KernelMode, FALSE, &Waittime);
 168
 169    CmShutdownRegistry();
 170    IoShutdownRegisteredFileSystems();
 171    IoShutdownRegisteredDevices();
 172
 173    MiShutdownMemoryManager();
 174
 175
 176    if (Action == ShutdownNoReboot)
 177      {
 178         HalDisplayString("\nYou can switch off your computer now\n");
 179
 180 #if 0
 181         /* Switch off */
 182         HalReturnToFirmware (FIRMWARE_OFF);
 183 #else
 184 #ifdef CONFIG_SMP
 185         LONG i;
 186         KIRQL OldIrql;
 187
 188         OldIrql = KeRaiseIrqlToDpcLevel();
 189         /* Halt all other processors */
 190         for (i = 0; i < KeNumberProcessors; i++)
 191           {
 192             if (i != (LONG)KeGetCurrentProcessorNumber())
 193               {
 194                 PKDPC Dpc = ExAllocatePool(NonPagedPool, sizeof(KDPC));
 195                 if (Dpc == NULL)
 196                   {
 197                     KEBUGCHECK(0);
 198                   }
 199                 KeInitializeDpc(Dpc, KiHaltProcessorDpcRoutine, (PVOID)Dpc);
 200                 KeSetTargetProcessorDpc(Dpc, i);
 201                 KeInsertQueueDpc(Dpc, NULL, NULL);
 202                 KiIpiSendRequest(1 << i, IPI_DPC);
 203               }
 204           }
 205         KeLowerIrql(OldIrql);
 206 #endif /* CONFIG_SMP */
 207         PopSetSystemPowerState(PowerSystemShutdown);
 208
 209         CHECKPOINT1;
 210
 211         KiHaltProcessorDpcRoutine(NULL, NULL, NULL, NULL);
 212         /* KiHaltProcessor does never return */
 213
 214 #endif
 215      }
 216    else if (Action == ShutdownReboot)
 217      {
 218         HalReturnToFirmware (HalRebootRoutine);
 219      }
 220    else
 221      {
 222         HalReturnToFirmware (HalHaltRoutine);
 223      }
 224 }
 225
 226
 227 NTSTATUS STDCALL
 228 NtSetSystemPowerState(IN POWER_ACTION SystemAction,
 229                       IN SYSTEM_POWER_STATE MinSystemState,
 230                       IN ULONG Flags)
 231 {
 232   /* Windows 2000 only */
 233   return(STATUS_NOT_IMPLEMENTED);
 234 }
 235
 236 /*
 237  * @implemented
 238  */
 239 NTSTATUS STDCALL
 240 NtShutdownSystem(IN SHUTDOWN_ACTION Action)
 241 {
 242    NTSTATUS Status;
 243    HANDLE ThreadHandle;
 244    PETHREAD ShutdownThread;
 245
 246    if (Action > ShutdownPowerOff)
 247      return STATUS_INVALID_PARAMETER;
 248    Status = PsCreateSystemThread(&ThreadHandle,
 249                                  THREAD_ALL_ACCESS,
 250                                  NULL,
 251                                  NULL,
 252                                  NULL,
 253                                  ShutdownThreadMain,
 254                                  (PVOID)Action);
 255    if (!NT_SUCCESS(Status))
 256    {
 257       KEBUGCHECK(0);
 258    }
 259    Status = ObReferenceObjectByHandle(ThreadHandle,
 260                                       THREAD_ALL_ACCESS,
 261                                       PsThreadType,
 262                                       KernelMode,
 263                                       (PVOID*)&ShutdownThread,
 264                                       NULL);
 265    NtClose(ThreadHandle);
 266    if (!NT_SUCCESS(Status))
 267      {
 268         KEBUGCHECK(0);
 269      }
 270
 271    KeSetPriorityThread(&ShutdownThread->Tcb, LOW_REALTIME_PRIORITY + 1);
 272    ObDereferenceObject(ShutdownThread);
 273
 274    return STATUS_SUCCESS;
 275 }
 276
 277 /* EOF */