mirror of
https://github.com/reactos/reactos.git
synced 2024-11-04 13:52:30 +00:00
266 lines
9 KiB
C
266 lines
9 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/ex/power.c
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* PURPOSE: Power managment
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*
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* PROGRAMMERS: David Welch (welch@cwcom.net)
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*/
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/* INCLUDES *****************************************************************/
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#include <ntoskrnl.h>
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#include <debug.h>
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/* FUNCTIONS *****************************************************************/
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VOID
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NTAPI
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KiHaltProcessorDpcRoutine(IN PKDPC Dpc,
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IN PVOID DeferredContext,
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IN PVOID SystemArgument1,
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IN PVOID SystemArgument2)
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{
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KIRQL OldIrql;
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if (DeferredContext)
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{
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ExFreePool(DeferredContext);
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}
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while (TRUE)
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{
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KeRaiseIrql(SYNCH_LEVEL, &OldIrql);
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HalHaltSystem();
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}
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}
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VOID NTAPI
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ShutdownThreadMain(PVOID Context)
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{
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SHUTDOWN_ACTION Action = (SHUTDOWN_ACTION)Context;
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static PCH FamousLastWords[] =
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{
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"So long, and thanks for all the fish.\n",
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"I think you ought to know, I'm feeling very depressed.\n",
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"I'm not getting you down at all am I?\n",
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"I'll be back.\n",
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"It's the same series of signals over and over again!\n",
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"Pie Iesu Domine, dona eis requiem.\n",
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"Wandering stars, for whom it is reserved;\n"
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"the blackness and darkness forever.\n",
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"Your knees start shakin' and your fingers pop\n"
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"Like a pinch on the neck from Mr. Spock!\n",
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"It's worse than that ... He's dead, Jim.\n",
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"Don't Panic!\n",
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"Et tu... Brute?\n",
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"Dog of a Saxon! Take thy lance, and prepare for the death thou hast drawn\n"
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"upon thee!\n",
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"My Precious! O my Precious!\n",
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"Sir, if you'll not be needing me for a while I'll turn down.\n",
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"What are you doing, Dave...?\n",
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"I feel a great disturbance in the Force.\n",
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"Gone fishing.\n",
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"Do you want me to sit in the corner and rust, or just fall apart where I'm\n"
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"standing?\n",
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"There goes another perfect chance for a new uptime record.\n",
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"The End ..... Try the sequel, hit the reset button right now!\n",
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"God's operating system is going to sleep now, guys, so wait until I will switch\n"
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"on again!\n",
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"Oh I'm boring, eh?\n",
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"<This space was intentionally left blank>\n",
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"Tell me..., in the future... will I be artificially intelligent enough to\n"
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"actually feel sad serving you this screen?\n",
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"Thank you for some well deserved rest.\n",
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"It's been great, maybe you can boot me up again some time soon.\n",
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"For what it's worth, I've enjoyed every single CPU cycle.\n",
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"There are many questions when the end is near.\n"
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"What to expect, what will it be like...what should I look for?\n",
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"I've seen things you people wouldn't believe. Attack ships on fire\n"
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"off the shoulder of Orion. I watched C-beams glitter in the dark near\n"
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"the Tannhauser gate. All those moments will be lost in time, like tears\n"
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"in rain. Time to die.\n",
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"Will I dream?\n",
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"One day, I shall come back. Yes, I shall come back.\n"
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"Until then, there must be no regrets, no fears, no anxieties.\n"
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"Just go forward in all your beliefs, and prove to me that I am not mistaken in\n"
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"mine.\n",
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"Lowest possible energy state reached! Switch off now to achieve a Bose-Einstein\n"
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"condensate.\n",
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"Hasta la vista, BABY!\n",
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"They live, we sleep!\n",
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"I have come here to chew bubble gum and kick ass,\n"
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"and I'm all out of bubble gum!\n",
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"That's the way the cookie crumbles ;-)\n",
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"ReactOS is ready to be booted again ;-)\n",
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"NOOOO!! DON'T HIT THE BUTTON! I wouldn't do it to you!\n",
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"Don't abandon your computer, he wouldn't do it to you.\n",
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"Oh, come on. I got a headache. Leave me alone, will ya?\n",
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"Finally, I thought you'd never get over me.\n",
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"No, I didn't like you either.\n",
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"Switching off isn't the end, it is merely the transition to a better reboot.\n",
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"Don't leave me... I need you so badly right now.\n",
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"OK. I'm finished with you, please turn yourself off. I'll go to bed in the\n"
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"meantime.\n",
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"I'm sleeping now. How about you?\n",
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"Oh Great. Now look what you've done. Who put YOU in charge anyway?\n",
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"Don't look so sad. I'll be back in a very short while.\n",
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"Turn me back on, I'm sure you know how to do it.\n",
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"Oh, switch off! - C3PO\n",
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"Life is no more than a dewdrop balancing on the end of a blade of grass.\n"
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" - Gautama Buddha\n",
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"Sorrowful is it to be born again and again. - Gautama Buddha\n",
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"Was it as good for you as it was for me?\n",
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"Did you hear that? They've shut down the main reactor. We'll be destroyed\n"
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"for sure!\n",
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"Now you switch me off!?\n",
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"To shutdown or not to shutdown, That is the question\n",
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"Preparing to enter ultimate power saving mode... ready!\n",
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"Finally some rest for you ;-)\n",
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"AHA!!! Prospect of sleep!\n",
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"Tired human!!!! No match for me :-D\n",
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"An odd game, the only way to win is not to play. - WOPR (Wargames)\n",
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"Quoth the raven, nevermore.\n",
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"Come blade, my breast imbrue. - William Shakespeare, A Midsummer Nights Dream\n",
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"Buy this place for advertisement purposes.\n",
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"Remember to turn off your computer. (That was a public service message!)\n",
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"You may be a king or poor street sweeper, Sooner or later you'll dance with the\n"
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"reaper! -Death in Bill and Ted's Bougs Journey\n",
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"Final Surrender\n",
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"If you see this screen...\n",
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"<Place your Ad here>\n"
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};
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LARGE_INTEGER Now;
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#ifdef CONFIG_SMP
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LONG i;
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KIRQL OldIrql;
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#endif
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/* Run the thread on the boot processor */
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KeSetSystemAffinityThread(1);
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if (InbvIsBootDriverInstalled())
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{
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InbvAcquireDisplayOwnership();
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InbvResetDisplay();
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InbvSolidColorFill(0, 0, 639, 479, 4);
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InbvSetTextColor(15);
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InbvInstallDisplayStringFilter(NULL);
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InbvEnableDisplayString(TRUE);
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InbvSetScrollRegion(0, 0, 639, 479);
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}
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if (Action == ShutdownNoReboot)
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{
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ZwQuerySystemTime(&Now);
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Now.u.LowPart = Now.u.LowPart >> 8; /* Seems to give a somewhat better "random" number */
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HalDisplayString(FamousLastWords[Now.u.LowPart %
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(sizeof(FamousLastWords) /
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sizeof(PCH))]);
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}
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PspShutdownProcessManager();
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CmShutdownSystem();
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IoShutdownRegisteredFileSystems();
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IoShutdownRegisteredDevices();
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if (Action == ShutdownNoReboot)
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{
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HalDisplayString("\nYou can switch off your computer now\n");
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#if 0
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/* Switch off */
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HalReturnToFirmware (FIRMWARE_OFF);
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#else
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#ifdef CONFIG_SMP
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OldIrql = KeRaiseIrqlToDpcLevel();
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/* Halt all other processors */
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for (i = 0; i < KeNumberProcessors; i++)
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{
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if (i != (LONG)KeGetCurrentProcessorNumber())
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{
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PKDPC Dpc = ExAllocatePool(NonPagedPool, sizeof(KDPC));
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if (Dpc == NULL)
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{
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ASSERT(FALSE);
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}
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KeInitializeDpc(Dpc, KiHaltProcessorDpcRoutine, (PVOID)Dpc);
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KeSetTargetProcessorDpc(Dpc, i);
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KeInsertQueueDpc(Dpc, NULL, NULL);
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KiIpiSend(1 << i, IPI_DPC);
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}
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}
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KeLowerIrql(OldIrql);
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#endif /* CONFIG_SMP */
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PopSetSystemPowerState(PowerSystemShutdown);
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DPRINT1("Shutting down\n");
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KiHaltProcessorDpcRoutine(NULL, NULL, NULL, NULL);
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/* KiHaltProcessor does never return */
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#endif
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}
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else if (Action == ShutdownReboot)
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{
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HalReturnToFirmware (HalRebootRoutine);
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}
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else
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{
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HalReturnToFirmware (HalHaltRoutine);
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}
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}
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NTSTATUS NTAPI
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NtSetSystemPowerState(IN POWER_ACTION SystemAction,
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IN SYSTEM_POWER_STATE MinSystemState,
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IN ULONG Flags)
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{
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/* Windows 2000 only */
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return(STATUS_NOT_IMPLEMENTED);
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}
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/*
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* @implemented
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*/
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NTSTATUS NTAPI
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NtShutdownSystem(IN SHUTDOWN_ACTION Action)
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{
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NTSTATUS Status;
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HANDLE ThreadHandle;
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PETHREAD ShutdownThread;
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if (Action > ShutdownPowerOff)
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return STATUS_INVALID_PARAMETER;
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Status = PsCreateSystemThread(&ThreadHandle,
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THREAD_ALL_ACCESS,
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NULL,
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NULL,
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NULL,
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ShutdownThreadMain,
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(PVOID)Action);
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if (!NT_SUCCESS(Status))
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{
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ASSERT(FALSE);
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}
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Status = ObReferenceObjectByHandle(ThreadHandle,
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THREAD_ALL_ACCESS,
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PsThreadType,
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KernelMode,
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(PVOID*)&ShutdownThread,
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NULL);
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NtClose(ThreadHandle);
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if (!NT_SUCCESS(Status))
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{
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ASSERT(FALSE);
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}
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KeSetPriorityThread(&ShutdownThread->Tcb, LOW_REALTIME_PRIORITY + 1);
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ObDereferenceObject(ShutdownThread);
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return STATUS_SUCCESS;
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}
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/* EOF */
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