reactos/ntoskrnl/po/poshtdwn.c
Amine Khaldi a00acb2a1b Sync with trunk head
svn path=/branches/header-work/; revision=46021
2010-03-09 00:19:55 +00:00

197 lines
5.8 KiB
C

/*
* PROJECT: ReactOS Kernel
* LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: ntoskrnl/po/poshtdwn.c
* PURPOSE: Power Manager Shutdown Code
* PROGRAMMERS: ReactOS Portable Systems Group
*/
/* INCLUDES ******************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
/* GLOBALS *******************************************************************/
ULONG PopShutdownPowerOffPolicy;
/* PRIVATE FUNCTIONS *********************************************************/
VOID
NTAPI
PopShutdownHandler(VOID)
{
PUCHAR Logo1, Logo2;
ULONG i;
/* Stop all interrupts */
KeRaiseIrqlToDpcLevel();
_disable();
/* Do we have boot video */
if (InbvIsBootDriverInstalled())
{
/* Yes we do, cleanup for shutdown screen */
if (!InbvCheckDisplayOwnership()) InbvAcquireDisplayOwnership();
InbvResetDisplay();
InbvSolidColorFill(0, 0, 639, 479, 0);
InbvEnableDisplayString(TRUE);
InbvSetScrollRegion(0, 0, 639, 479);
/* Display shutdown logo and message */
Logo1 = InbvGetResourceAddress(IDB_SHUTDOWN_LOGO);
Logo2 = InbvGetResourceAddress(IDB_LOGO);
if ((Logo1) && (Logo2))
{
InbvBitBlt(Logo1, 215, 352);
InbvBitBlt(Logo2, 217, 111);
}
}
else
{
/* Do it in text-mode */
for (i = 0; i < 25; i++) InbvDisplayString("\n");
InbvDisplayString(" ");
InbvDisplayString("The system may be powered off now.\n");
}
/* Hang the system */
for (;;) HalHaltSystem();
}
VOID
NTAPI
PopShutdownSystem(IN POWER_ACTION SystemAction)
{
/* Note should notify caller of NtPowerInformation(PowerShutdownNotification) */
/* Unload symbols */
DPRINT1("It's the final countdown...%lx\n", SystemAction);
DbgUnLoadImageSymbols(NULL, (PVOID)-1, 0);
/* Run the thread on the boot processor */
KeSetSystemAffinityThread(1);
/* Now check what the caller wants */
switch (SystemAction)
{
/* Reset */
case PowerActionShutdownReset:
/* Try platform driver first, then legacy */
//PopInvokeSystemStateHandler(PowerStateShutdownReset, NULL);
HalReturnToFirmware(HalRebootRoutine);
break;
case PowerActionShutdown:
/* Check for group policy that says to use "it is now safe" screen */
if (PopShutdownPowerOffPolicy)
{
/* FIXFIX: Switch to legacy shutdown handler */
//PopPowerStateHandlers[PowerStateShutdownOff].Handler = PopShutdownHandler;
}
case PowerActionShutdownOff:
/* Call shutdown handler */
//PopInvokeSystemStateHandler(PowerStateShutdownOff, NULL);
/* ReactOS Hack */
PopSetSystemPowerState(PowerSystemShutdown);
PopShutdownHandler();
/* If that didn't work, call the HAL */
HalReturnToFirmware(HalPowerDownRoutine);
break;
default:
break;
}
/* Anything else should not happen */
KeBugCheckEx(INTERNAL_POWER_ERROR, 5, 0, 0, 0);
}
VOID
NTAPI
PopGracefulShutdown(IN PVOID Context)
{
/* First, the HAL handles any "end of boot" special functionality */
DPRINT1("HAL shutting down\n");
HalEndOfBoot();
/* In this step, the I/O manager does first-chance shutdown notification */
DPRINT1("I/O manager shutting down in phase 0\n");
IoShutdownSystem(0);
/* In this step, all workers are killed and hives are flushed */
DPRINT1("Configuration Manager shutting down\n");
CmShutdownSystem();
/* Note that modified pages should be written here (MiShutdownSystem) */
/* In this step, the I/O manager does last-chance shutdown notification */
DPRINT1("I/O manager shutting down in phase 1\n");
IoShutdownSystem(1);
CcWaitForCurrentLazyWriterActivity();
/* Note that here, we should broadcast the power IRP to devices */
/* In this step, the HAL disables any wake timers */
DPRINT1("Disabling wake timers\n");
HalSetWakeEnable(FALSE);
/* And finally the power request is sent */
DPRINT1("Taking the system down\n");
PopShutdownSystem(PopAction.Action);
}
VOID
NTAPI
PopReadShutdownPolicy(VOID)
{
UNICODE_STRING KeyString;
OBJECT_ATTRIBUTES ObjectAttributes;
NTSTATUS Status;
HANDLE KeyHandle;
ULONG Length;
UCHAR Buffer[sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(ULONG)];
PKEY_VALUE_PARTIAL_INFORMATION Info = (PVOID)Buffer;
/* Setup object attributes */
RtlInitUnicodeString(&KeyString,
L"\\Registry\\Machine\\Software\\Policies\\Microsoft\\Windows NT");
InitializeObjectAttributes(&ObjectAttributes,
&KeyString,
OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
NULL,
NULL);
/* Open the key */
Status = ZwOpenKey(&KeyHandle, KEY_READ, &ObjectAttributes);
if (NT_SUCCESS(Status))
{
/* Open the policy value and query it */
RtlInitUnicodeString(&KeyString, L"DontPowerOffAfterShutdown");
Status = ZwQueryValueKey(KeyHandle,
&KeyString,
KeyValuePartialInformation,
&Info,
sizeof(Info),
&Length);
if ((NT_SUCCESS(Status)) && (Info->Type == REG_DWORD))
{
/* Read the policy */
PopShutdownPowerOffPolicy = *Info->Data == 1;
}
/* Close the key */
ZwClose(KeyHandle);
}
}
/* PUBLIC FUNCTIONS **********************************************************/