reactos/ntoskrnl/ex/shutdown.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  *
   7  * PROGRAMMERS:     David Welch (welch@cwcom.net)
   8  */
   9
  10 /* INCLUDES *****************************************************************/
  11
  12 #include <ntoskrnl.h>
  13 #include <internal/debug.h>
  14
  15 /* FUNCTIONS *****************************************************************/
  16
  17 VOID STDCALL
  18 KiHaltProcessorDpcRoutine(IN PKDPC Dpc,
  19                           IN PVOID DeferredContext,
  20                           IN PVOID SystemArgument1,
  21                           IN PVOID SystemArgument2)
  22 {
  23    KIRQL OldIrql;
  24    if (DeferredContext)
  25      {
  26        ExFreePool(DeferredContext);
  27      }
  28    while (TRUE)
  29      {
  30        KeRaiseIrql(SYNCH_LEVEL, &OldIrql);
  31 #if defined(_M_X86)
  32        Ke386HaltProcessor();
  33 #else
  34        HalProcessorIdle();
  35 #endif
  36      }
  37 }
  38
  39 VOID STDCALL
  40 ShutdownThreadMain(PVOID Context)
  41 {
  42    SHUTDOWN_ACTION Action = (SHUTDOWN_ACTION)Context;
  43
  44    static PCH FamousLastWords[] =
  45      {
  46        "So long, and thanks for all the fish.\n",
  47        "I think you ought to know, I'm feeling very depressed.\n",
  48        "I'm not getting you down at all am I?\n",
  49        "I'll be back.\n",
  50        "It's the same series of signals over and over again!\n",
  51        "Pie Iesu Domine, dona eis requiem.\n",
  52        "Wandering stars, for whom it is reserved;\n"
  53        "the blackness and darkness forever.\n",
  54        "Your knees start shakin' and your fingers pop\n"
  55        "Like a pinch on the neck from Mr. Spock!\n",
  56        "It's worse than that ... He's dead, Jim.\n",
  57        "Don't Panic!\n",
  58        "Et tu... Brute?\n",
  59        "Dog of a Saxon! Take thy lance, and prepare for the death thou hast drawn\n"
  60        "upon thee!\n",
  61        "My Precious! O my Precious!\n",
  62        "Sir, if you'll not be needing me for a while I'll turn down.\n",
  63        "What are you doing, Dave...?\n",
  64        "I feel a great disturbance in the Force.\n",
  65        "Gone fishing.\n",
  66        "Do you want me to sit in the corner and rust, or just fall apart where I'm\n"
  67        "standing?\n",
  68        "There goes another perfect chance for a new uptime record.\n",
  69        "The End ..... Try the sequel, hit the reset button right now!\n",
  70        "God's operating system is going to sleep now, guys, so wait until I will switch\n"
  71        "on again!\n",
  72        "Oh I'm boring, eh?\n",
  73        "<This space was intentionally left blank>\n",
  74        "Tell me..., in the future... will I be artificially intelligent enough to\n"
  75        "actually feel sad serving you this screen?\n",
  76        "Thank you for some well deserved rest.\n",
  77        "It's been great, maybe you can boot me up again some time soon.\n",
  78        "For what it's worth, I've enjoyed every single CPU cycle.\n",
  79        "There are many questions when the end is near.\n"
  80        "What to expect, what will it be like...what should I look for?\n",
  81        "I've seen things you people wouldn't believe. Attack ships on fire\n"
  82        "off the shoulder of Orion. I watched C-beams glitter in the dark near\n"
  83        "the Tannhauser gate. All those moments will be lost in time, like tears\n"
  84        "in rain. Time to die.\n",
  85        "Will I dream?\n",
  86        "One day, I shall come back. Yes, I shall come back.\n"
  87        "Until then, there must be no regrets, no fears, no anxieties.\n"
  88        "Just go forward in all your beliefs, and prove to me that I am not mistaken in\n"
  89        "mine.\n",
  90        "Lowest possible energy state reached! Switch off now to achive a Bose-Einstein\n"
  91        "condensate.\n",
  92        "Hasta la vista, BABY!\n",
  93        "They live, we sleep!\n",
  94        "I have come here to chew bubble gum and kick ass,\n"
  95        "and I'm all out of bubble gum!\n",
  96        "That's the way the cookie crumbles ;-)\n",
  97        "ReactOS is ready to be booted again ;-)\n",
  98        "NOOOO!! DON'T HIT THE BUTTON! I wouldn't do it to you!\n",
  99        "Don't abandon your computer, he wouldn't do it to you.\n",
 100        "Oh, come on. I got a headache. Leave me alone, will ya?\n",
 101        "Finally, I thought you'd never get over me.\n",
 102        "No, I didn't like you either.\n",
 103        "Switching off isn't the end, it is merely the transition to a better reboot.\n",
 104        "Don't leave me... I need you so badly right now.\n",
 105        "OK. I'm finished with you, please turn yourself off. I'll go to bed in the\n"
 106        "meantime.\n",
 107        "I'm sleeping now. How about you?\n",
 108        "Oh Great. Now look what you've done. Who put YOU in charge anyway?\n",
 109        "Don't look so sad. I'll be back in a very short while.\n",
 110        "Turn me back on, I'm sure you know how to do it.\n",
 111        "Oh, switch off! - C3PO\n",
 112        "Life is no more than a dewdrop balancing on the end of a blade of grass.\n"
 113        " - Gautama Buddha\n",
 114        "Sorrowful is it to be born again and again. - Gautama Buddha\n",
 115        "Was it as good for you as it was for me?\n",
 116        "Did you hear that? They've shut down the main reactor. We'll be destroyed\n"
 117        "for sure!\n",
 118        "Now you switch me off!?\n",
 119        "To shutdown or not to shutdown, That is the question\n",
 120        "Preparing to enter ultimate power saving mode... ready!\n",
 121        "Finally some rest for you ;-)\n",
 122        "AHA!!! Prospect of sleep!\n",
 123        "Tired human!!!! No match for me :-D\n",
 124        "An odd game, the only way to win is not to play. - WOPR (Wargames)\n",
 125        "Quoth the raven, nevermore.\n",
 126        "Come blade, my breast imbrue. - William Shakespeare, A Midsummer Nights Dream\n",
 127        "Buy this place for advertisement purposes.\n",
 128        "Remember to turn off your computer. (That was a public service message!)\n",
 129        "You may be a king or poor street sweeper, Sooner or later you'll dance with the\n"
 130        "reaper! -Death in Bill and Ted's Bougs Journey\n",
 131        "Final Surrender\n",
 132        "If you see this screen...\n",
 133        "<Place your Ad here>\n"
 134     };
 135    LARGE_INTEGER Now;
 136
 137    /* Run the thread on the boot processor */
 138    KeSetSystemAffinityThread(1);
 139
 140    if (InbvIsBootDriverInstalled())
 141      {
 142         InbvAcquireDisplayOwnership();
 143         InbvResetDisplay();
 144         InbvSolidColorFill(0, 0, 639, 479, 4);
 145         InbvSetTextColor(15);
 146         InbvInstallDisplayStringFilter(NULL);
 147         InbvEnableDisplayString(TRUE);
 148         InbvSetScrollRegion(0, 0, 639, 479);
 149      }
 150
 151    if (Action == ShutdownNoReboot)
 152      {
 153         ZwQuerySystemTime(&Now);
 154         Now.u.LowPart = Now.u.LowPart >> 8; /* Seems to give a somewhat better "random" number */
 155         HalDisplayString(FamousLastWords[Now.u.LowPart %
 156                                          (sizeof(FamousLastWords) /
 157                                           sizeof(PCH))]);
 158      }
 159
 160    PspShutdownProcessManager();
 161
 162    CmShutdownSystem();
 163    MiShutdownMemoryManager();
 164    IoShutdownRegisteredFileSystems();
 165    IoShutdownRegisteredDevices();
 166
 167    if (Action == ShutdownNoReboot)
 168      {
 169         HalDisplayString("\nYou can switch off your computer now\n");
 170
 171 #if 0
 172         /* Switch off */
 173         HalReturnToFirmware (FIRMWARE_OFF);
 174 #else
 175 #ifdef CONFIG_SMP
 176         LONG i;
 177         KIRQL OldIrql;
 178
 179         OldIrql = KeRaiseIrqlToDpcLevel();
 180         /* Halt all other processors */
 181         for (i = 0; i < KeNumberProcessors; i++)
 182           {
 183             if (i != (LONG)KeGetCurrentProcessorNumber())
 184               {
 185                 PKDPC Dpc = ExAllocatePool(NonPagedPool, sizeof(KDPC));
 186                 if (Dpc == NULL)
 187                   {
 188                     ASSERT(FALSE);
 189                   }
 190                 KeInitializeDpc(Dpc, KiHaltProcessorDpcRoutine, (PVOID)Dpc);
 191                 KeSetTargetProcessorDpc(Dpc, i);
 192                 KeInsertQueueDpc(Dpc, NULL, NULL);
 193                 KiIpiSendRequest(1 << i, IPI_DPC);
 194               }
 195           }
 196         KeLowerIrql(OldIrql);
 197 #endif /* CONFIG_SMP */
 198         PopSetSystemPowerState(PowerSystemShutdown);
 199
 200         CHECKPOINT1;
 201
 202         KiHaltProcessorDpcRoutine(NULL, NULL, NULL, NULL);
 203         /* KiHaltProcessor does never return */
 204
 205 #endif
 206      }
 207    else if (Action == ShutdownReboot)
 208      {
 209         HalReturnToFirmware (HalRebootRoutine);
 210      }
 211    else
 212      {
 213         HalReturnToFirmware (HalHaltRoutine);
 214      }
 215 }
 216
 217
 218 NTSTATUS STDCALL
 219 NtSetSystemPowerState(IN POWER_ACTION SystemAction,
 220                       IN SYSTEM_POWER_STATE MinSystemState,
 221                       IN ULONG Flags)
 222 {
 223   /* Windows 2000 only */
 224   return(STATUS_NOT_IMPLEMENTED);
 225 }
 226
 227 /*
 228  * @implemented
 229  */
 230 NTSTATUS STDCALL
 231 NtShutdownSystem(IN SHUTDOWN_ACTION Action)
 232 {
 233    NTSTATUS Status;
 234    HANDLE ThreadHandle;
 235    PETHREAD ShutdownThread;
 236
 237    if (Action > ShutdownPowerOff)
 238      return STATUS_INVALID_PARAMETER;
 239    Status = PsCreateSystemThread(&ThreadHandle,
 240                                  THREAD_ALL_ACCESS,
 241                                  NULL,
 242                                  NULL,
 243                                  NULL,
 244                                  ShutdownThreadMain,
 245                                  (PVOID)Action);
 246    if (!NT_SUCCESS(Status))
 247    {
 248       ASSERT(FALSE);
 249    }
 250    Status = ObReferenceObjectByHandle(ThreadHandle,
 251                                       THREAD_ALL_ACCESS,
 252                                       PsThreadType,
 253                                       KernelMode,
 254                                       (PVOID*)&ShutdownThread,
 255                                       NULL);
 256    NtClose(ThreadHandle);
 257    if (!NT_SUCCESS(Status))
 258      {
 259         ASSERT(FALSE);
 260      }
 261
 262    KeSetPriorityThread(&ShutdownThread->Tcb, LOW_REALTIME_PRIORITY + 1);
 263    ObDereferenceObject(ShutdownThread);
 264
 265    return STATUS_SUCCESS;
 266 }
 267
 268 /* EOF */