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    KIRQL OldIrql;
  33    if (DeferredContext)
  34      {
  35        ExFreePool(DeferredContext);
  36      }
  37    while (TRUE)
  38      {
  39        KeRaiseIrql(SYNCH_LEVEL, &OldIrql);
  40 #if defined(_M_X86)
  41        Ke386HaltProcessor();
  42 #else
  43        HalProcessorIdle();
  44 #endif
  45      }
  46 }
  47
  48 VOID STDCALL
  49 ShutdownThreadMain(PVOID Context)
  50 {
  51    SHUTDOWN_ACTION Action = (SHUTDOWN_ACTION)Context;
  52
  53    static PCH FamousLastWords[] =
  54      {
  55        "So long, and thanks for all the fish.\n",
  56        "I think you ought to know, I'm feeling very depressed.\n",
  57        "I'm not getting you down at all am I?\n",
  58        "I'll be back.\n",
  59        "It's the same series of signals over and over again!\n",
  60        "Pie Iesu Domine, dona eis requiem.\n",
  61        "Wandering stars, for whom it is reserved;\n"
  62        "the blackness and darkness forever.\n",
  63        "Your knees start shakin' and your fingers pop\n"
  64        "Like a pinch on the neck from Mr. Spock!\n",
  65        "It's worse than that ... He's dead, Jim.\n",
  66        "Don't Panic!\n",
  67        "Et tu... Brute?\n",
  68        "Dog of a Saxon! Take thy lance, and prepare for the death thou hast drawn\n"
  69        "upon thee!\n",
  70        "My Precious! O my Precious!\n",
  71        "Sir, if you'll not be needing me for a while I'll turn down.\n",
  72        "What are you doing, Dave...?\n",
  73        "I feel a great disturbance in the Force.\n",
  74        "Gone fishing.\n",
  75        "Do you want me to sit in the corner and rust, or just fall apart where I'm\n"
  76        "standing?\n",
  77        "There goes another perfect chance for a new uptime record.\n",
  78        "The End ..... Try the sequel, hit the reset button right now!\n",
  79        "God's operating system is going to sleep now, guys, so wait until I will switch\n"
  80        "on again!\n",
  81        "Oh I'm boring, eh?\n",
  82        "<This space was intentionally left blank>\n",
  83        "Tell me..., in the future... will I be artificially intelligent enough to\n"
  84        "actually feel sad serving you this screen?\n",
  85        "Thank you for some well deserved rest.\n",
  86        "It's been great, maybe you can boot me up again some time soon.\n",
  87        "For what it's worth, I've enjoyed every single CPU cycle.\n",
  88        "There are many questions when the end is near.\n"
  89        "What to expect, what will it be like...what should I look for?\n",
  90        "I've seen things you people wouldn't believe. Attack ships on fire\n"
  91        "off the shoulder of Orion. I watched C-beams glitter in the dark near\n"
  92        "the Tannhauser gate. All those moments will be lost in time, like tears\n"
  93        "in rain. Time to die.\n",
  94        "Will I dream?\n",
  95        "One day, I shall come back. Yes, I shall come back.\n"
  96        "Until then, there must be no regrets, no fears, no anxieties.\n"
  97        "Just go forward in all your beliefs, and prove to me that I am not mistaken in\n"
  98        "mine.\n",
  99        "Lowest possible energy state reached! Switch off now to achive a Bose-Einstein\n"
 100        "condensate.\n",
 101        "Hasta la vista, BABY!\n",
 102        "They live, we sleep!\n",
 103        "I have come here to chew bubble gum and kick ass,\n"
 104        "and I'm all out of bubble gum!\n",
 105        "That's the way the cookie crumbles ;-)\n",
 106        "ReactOS is ready to be booted again ;-)\n",
 107        "NOOOO!! DON'T HIT THE BUTTON! I wouldn't do it to you!\n",
 108        "Don't abandon your computer, he wouldn't do it to you.\n",
 109        "Oh, come on. I got a headache. Leave me alone, will ya?\n",
 110        "Finally, I thought you'd never get over me.\n",
 111        "No, I didn't like you either.\n",
 112        "Switching off isn't the end, it is merely the transition to a better reboot.\n",
 113        "Don't leave me... I need you so badly right now.\n",
 114        "OK. I'm finished with you, please turn yourself off. I'll go to bed in the\n"
 115        "meantime.\n",
 116        "I'm sleeping now. How about you?\n",
 117        "Oh Great. Now look what you've done. Who put YOU in charge anyway?\n",
 118        "Don't look so sad. I'll be back in a very short while.\n",
 119        "Turn me back on, I'm sure you know how to do it.\n",
 120        "Oh, switch off! - C3PO\n",
 121        "Life is no more than a dewdrop balancing on the end of a blade of grass.\n"
 122        " - Gautama Buddha\n",
 123        "Sorrowful is it to be born again and again. - Gautama Buddha\n",
 124        "Was it as good for you as it was for me?\n",
 125        "Did you hear that? They've shut down the main reactor. We'll be destroyed\n"
 126        "for sure!\n",
 127        "Now you switch me off!?\n",
 128        "To shutdown or not to shutdown, That is the question\n",
 129        "Preparing to enter ultimate power saving mode... ready!\n",
 130        "Finally some rest for you ;-)\n",
 131        "AHA!!! Prospect of sleep!\n",
 132        "Tired human!!!! No match for me :-D\n",
 133        "An odd game, the only way to win is not to play. - WOPR (Wargames)\n",
 134        "Quoth the raven, nevermore.\n",
 135        "Come blade, my breast imbrue. - William Shakespeare, A Midsummer Nights Dream\n",
 136        "Buy this place for advertisement purposes.\n",
 137        "Remember to turn off your computer. (That was a public service message!)\n",
 138        "You may be a king or poor street sweeper, Sooner or later you'll dance with the\n"
 139        "reaper! -Death in Bill and Ted's Bougs Journey\n",
 140        "Final Surrender\n",
 141        "If you see this screen...\n",
 142        "<Place your Ad here>\n"
 143     };
 144    LARGE_INTEGER Now;
 145
 146    /* Run the thread on the boot processor */
 147    KeSetSystemAffinityThread(1);
 148
 149    if (InbvIsBootDriverInstalled())
 150      {
 151         InbvAcquireDisplayOwnership();
 152         InbvResetDisplay();
 153         InbvSolidColorFill(0, 0, 639, 479, 4);
 154         InbvSetTextColor(15);
 155         InbvInstallDisplayStringFilter(NULL);
 156         InbvEnableDisplayString(TRUE);
 157         InbvSetScrollRegion(0, 0, 639, 479);
 158      }
 159
 160    if (Action == ShutdownNoReboot)
 161      {
 162         ZwQuerySystemTime(&Now);
 163         Now.u.LowPart = Now.u.LowPart >> 8; /* Seems to give a somewhat better "random" number */
 164         HalDisplayString(FamousLastWords[Now.u.LowPart %
 165                                          (sizeof(FamousLastWords) /
 166                                           sizeof(PCH))]);
 167      }
 168
 169    PspShutdownProcessManager();
 170
 171    CmShutdownSystem();
 172    IoShutdownRegisteredFileSystems();
 173    IoShutdownRegisteredDevices();
 174
 175    MiShutdownMemoryManager();
 176
 177    if (Action == ShutdownNoReboot)
 178      {
 179         HalDisplayString("\nYou can switch off your computer now\n");
 180
 181 #if 0
 182         /* Switch off */
 183         HalReturnToFirmware (FIRMWARE_OFF);
 184 #else
 185 #ifdef CONFIG_SMP
 186         LONG i;
 187         KIRQL OldIrql;
 188
 189         OldIrql = KeRaiseIrqlToDpcLevel();
 190         /* Halt all other processors */
 191         for (i = 0; i < KeNumberProcessors; i++)
 192           {
 193             if (i != (LONG)KeGetCurrentProcessorNumber())
 194               {
 195                 PKDPC Dpc = ExAllocatePool(NonPagedPool, sizeof(KDPC));
 196                 if (Dpc == NULL)
 197                   {
 198                     KEBUGCHECK(0);
 199                   }
 200                 KeInitializeDpc(Dpc, KiHaltProcessorDpcRoutine, (PVOID)Dpc);
 201                 KeSetTargetProcessorDpc(Dpc, i);
 202                 KeInsertQueueDpc(Dpc, NULL, NULL);
 203                 KiIpiSendRequest(1 << i, IPI_DPC);
 204               }
 205           }
 206         KeLowerIrql(OldIrql);
 207 #endif /* CONFIG_SMP */
 208         PopSetSystemPowerState(PowerSystemShutdown);
 209
 210         CHECKPOINT1;
 211
 212         KiHaltProcessorDpcRoutine(NULL, NULL, NULL, NULL);
 213         /* KiHaltProcessor does never return */
 214
 215 #endif
 216      }
 217    else if (Action == ShutdownReboot)
 218      {
 219         HalReturnToFirmware (HalRebootRoutine);
 220      }
 221    else
 222      {
 223         HalReturnToFirmware (HalHaltRoutine);
 224      }
 225 }
 226
 227
 228 NTSTATUS STDCALL
 229 NtSetSystemPowerState(IN POWER_ACTION SystemAction,
 230                       IN SYSTEM_POWER_STATE MinSystemState,
 231                       IN ULONG Flags)
 232 {
 233   /* Windows 2000 only */
 234   return(STATUS_NOT_IMPLEMENTED);
 235 }
 236
 237 /*
 238  * @implemented
 239  */
 240 NTSTATUS STDCALL
 241 NtShutdownSystem(IN SHUTDOWN_ACTION Action)
 242 {
 243    NTSTATUS Status;
 244    HANDLE ThreadHandle;
 245    PETHREAD ShutdownThread;
 246
 247    if (Action > ShutdownPowerOff)
 248      return STATUS_INVALID_PARAMETER;
 249    Status = PsCreateSystemThread(&ThreadHandle,
 250                                  THREAD_ALL_ACCESS,
 251                                  NULL,
 252                                  NULL,
 253                                  NULL,
 254                                  ShutdownThreadMain,
 255                                  (PVOID)Action);
 256    if (!NT_SUCCESS(Status))
 257    {
 258       KEBUGCHECK(0);
 259    }
 260    Status = ObReferenceObjectByHandle(ThreadHandle,
 261                                       THREAD_ALL_ACCESS,
 262                                       PsThreadType,
 263                                       KernelMode,
 264                                       (PVOID*)&ShutdownThread,
 265                                       NULL);
 266    NtClose(ThreadHandle);
 267    if (!NT_SUCCESS(Status))
 268      {
 269         KEBUGCHECK(0);
 270      }
 271
 272    KeSetPriorityThread(&ShutdownThread->Tcb, LOW_REALTIME_PRIORITY + 1);
 273    ObDereferenceObject(ShutdownThread);
 274
 275    return STATUS_SUCCESS;
 276 }
 277
 278 /* EOF */