-/* $Id$
- *
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS kernel
+/*
+ * PROJECT: ReactOS Kernel
+ * LICENSE: GPL - See COPYING in the top level directory
* FILE: ntoskrnl/po/power.c
* PURPOSE: Power Manager
- *
* PROGRAMMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
* Hervé Poussineau (hpoussin@reactos.com)
*/
+/* INCLUDES ******************************************************************/
+
#include <ntoskrnl.h>
#define NDEBUG
-#include <internal/debug.h>
+#include <debug.h>
+
+/* GLOBALS *******************************************************************/
extern ULONG ExpInitialiationPhase;
typedef struct _REQUEST_POWER_ITEM
{
- PREQUEST_POWER_COMPLETE CompletionRoutine;
- POWER_STATE PowerState;
- PVOID Context;
+ PREQUEST_POWER_COMPLETE CompletionRoutine;
+ POWER_STATE PowerState;
+ PVOID Context;
} REQUEST_POWER_ITEM, *PREQUEST_POWER_ITEM;
PDEVICE_NODE PopSystemPowerDeviceNode = NULL;
BOOLEAN PopAcpiPresent = FALSE;
-/*
- * @implemented
- */
-NTSTATUS
-STDCALL
-PoCallDriver(
- IN PDEVICE_OBJECT DeviceObject,
- IN OUT PIRP Irp)
-{
- NTSTATUS Status;
-
- Status = IoCallDriver(DeviceObject, Irp);
-
- return Status;
-}
-
-/*
- * @unimplemented
- */
-PULONG
-STDCALL
-PoRegisterDeviceForIdleDetection(
- IN PDEVICE_OBJECT DeviceObject,
- IN ULONG ConservationIdleTime,
- IN ULONG PerformanceIdleTime,
- IN DEVICE_POWER_STATE State)
-{
- return NULL;
-}
-
-/*
- * @unimplemented
- */
-PVOID
-STDCALL
-PoRegisterSystemState(
- IN PVOID StateHandle,
- IN EXECUTION_STATE Flags)
-{
- return NULL;
-}
+/* PRIVATE FUNCTIONS *********************************************************/
static
-NTSTATUS STDCALL
-PopRequestPowerIrpCompletion(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp,
- IN PVOID Context)
-{
- PIO_STACK_LOCATION Stack;
- PREQUEST_POWER_ITEM RequestPowerItem;
-
- Stack = IoGetNextIrpStackLocation(Irp);
- RequestPowerItem = (PREQUEST_POWER_ITEM)Context;
-
- RequestPowerItem->CompletionRoutine(
- DeviceObject,
- Stack->MinorFunction,
- RequestPowerItem->PowerState,
- RequestPowerItem->Context,
- &Irp->IoStatus);
-
- ExFreePool(&Irp->IoStatus);
- ExFreePool(Context);
- return STATUS_SUCCESS;
-}
-
-/*
- * @implemented
- */
NTSTATUS
-STDCALL
-PoRequestPowerIrp(
- IN PDEVICE_OBJECT DeviceObject,
- IN UCHAR MinorFunction,
- IN POWER_STATE PowerState,
- IN PREQUEST_POWER_COMPLETE CompletionFunction,
- IN PVOID Context,
- OUT PIRP *pIrp OPTIONAL)
+NTAPI
+PopRequestPowerIrpCompletion(IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp,
+ IN PVOID Context)
{
- PDEVICE_OBJECT TopDeviceObject;
- PIO_STACK_LOCATION Stack;
- PIRP Irp;
- PIO_STATUS_BLOCK IoStatusBlock;
- PREQUEST_POWER_ITEM RequestPowerItem;
- NTSTATUS Status;
-
- if (MinorFunction != IRP_MN_QUERY_POWER
- && MinorFunction != IRP_MN_SET_POWER
- && MinorFunction != IRP_MN_WAIT_WAKE)
- return STATUS_INVALID_PARAMETER_2;
-
- RequestPowerItem = ExAllocatePool(NonPagedPool, sizeof(REQUEST_POWER_ITEM));
- if (!RequestPowerItem)
- return STATUS_INSUFFICIENT_RESOURCES;
- IoStatusBlock = ExAllocatePool(NonPagedPool, sizeof(IO_STATUS_BLOCK));
- if (!IoStatusBlock)
- {
- ExFreePool(RequestPowerItem);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- /* Always call the top of the device stack */
- TopDeviceObject = IoGetAttachedDeviceReference(DeviceObject);
-
- Irp = IoBuildSynchronousFsdRequest(
- IRP_MJ_PNP,
- TopDeviceObject,
- NULL,
- 0,
- NULL,
- NULL,
- IoStatusBlock);
- if (!Irp)
- {
- ExFreePool(RequestPowerItem);
- ExFreePool(IoStatusBlock);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- /* POWER IRPs are always initialized with a status code of
- STATUS_NOT_IMPLEMENTED */
- Irp->IoStatus.Status = STATUS_NOT_IMPLEMENTED;
- Irp->IoStatus.Information = 0;
-
- Stack = IoGetNextIrpStackLocation(Irp);
- Stack->MinorFunction = MinorFunction;
- if (MinorFunction == IRP_MN_WAIT_WAKE)
- Stack->Parameters.WaitWake.PowerState = PowerState.SystemState;
- else
- Stack->Parameters.WaitWake.PowerState = PowerState.DeviceState;
+ PIO_STACK_LOCATION Stack;
+ PREQUEST_POWER_ITEM RequestPowerItem;
- RequestPowerItem->CompletionRoutine = CompletionFunction;
- RequestPowerItem->PowerState = PowerState;
- RequestPowerItem->Context = Context;
+ Stack = IoGetNextIrpStackLocation(Irp);
+ RequestPowerItem = (PREQUEST_POWER_ITEM)Context;
- if (pIrp != NULL)
- *pIrp = Irp;
+ RequestPowerItem->CompletionRoutine(DeviceObject,
+ Stack->MinorFunction,
+ RequestPowerItem->PowerState,
+ RequestPowerItem->Context,
+ &Irp->IoStatus);
- IoSetCompletionRoutine(Irp, PopRequestPowerIrpCompletion, RequestPowerItem, TRUE, TRUE, TRUE);
- Status = IoCallDriver(TopDeviceObject, Irp);
-
- /* Always return STATUS_PENDING. The completion routine
- * will call CompletionFunction and complete the Irp.
- */
- return STATUS_PENDING;
-}
+ ExFreePool(&Irp->IoStatus);
+ ExFreePool(Context);
-#undef PoSetDeviceBusy
-VOID
-NTAPI
-PoSetDeviceBusy(IN PULONG IdlePointer)
-{
- *IdlePointer = 0;
+ return STATUS_SUCCESS;
}
VOID
NTAPI
PopCleanupPowerState(IN PPOWER_STATE PowerState)
{
- /* FIXME */
-}
-
-/*
- * @unimplemented
- */
-POWER_STATE
-STDCALL
-PoSetPowerState(
- IN PDEVICE_OBJECT DeviceObject,
- IN POWER_STATE_TYPE Type,
- IN POWER_STATE State)
-{
- POWER_STATE ps;
-
- ASSERT_IRQL(DISPATCH_LEVEL);
-
- ps.SystemState = PowerSystemWorking; // Fully on
- ps.DeviceState = PowerDeviceD0; // Fully on
-
- return ps;
-}
-
-/*
- * @unimplemented
- */
-VOID
-STDCALL
-PoSetSystemState(
- IN EXECUTION_STATE Flags)
-{
-}
-
-/*
- * @unimplemented
- */
-VOID
-STDCALL
-PoStartNextPowerIrp(
- IN PIRP Irp)
-{
-}
-
-/*
- * @unimplemented
- */
-VOID
-STDCALL
-PoUnregisterSystemState(
- IN PVOID StateHandle)
-{
+ //UNIMPLEMENTED;
}
NTSTATUS
NTAPI
-PopSetSystemPowerState(
- SYSTEM_POWER_STATE PowerState)
+PopSetSystemPowerState(SYSTEM_POWER_STATE PowerState)
{
- IO_STATUS_BLOCK IoStatusBlock;
- PDEVICE_OBJECT DeviceObject;
- PIO_STACK_LOCATION IrpSp;
- PDEVICE_OBJECT Fdo;
- NTSTATUS Status;
- KEVENT Event;
- PIRP Irp;
-
- if (!PopAcpiPresent) return STATUS_NOT_IMPLEMENTED;
-
- Status = IopGetSystemPowerDeviceObject(&DeviceObject);
- if (!NT_SUCCESS(Status)) {
- CPRINT("No system power driver available\n");
- return STATUS_UNSUCCESSFUL;
- }
+ IO_STATUS_BLOCK IoStatusBlock;
+ PDEVICE_OBJECT DeviceObject;
+ PIO_STACK_LOCATION IrpSp;
+ PDEVICE_OBJECT Fdo;
+ NTSTATUS Status;
+ KEVENT Event;
+ PIRP Irp;
+
+ if (!PopAcpiPresent) return STATUS_NOT_IMPLEMENTED;
+
+ Status = IopGetSystemPowerDeviceObject(&DeviceObject);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("No system power driver available\n");
+ return STATUS_UNSUCCESSFUL;
+ }
- Fdo = IoGetAttachedDeviceReference(DeviceObject);
+ Fdo = IoGetAttachedDeviceReference(DeviceObject);
- if (Fdo == DeviceObject)
+ if (Fdo == DeviceObject)
{
- DPRINT("An FDO was not attached\n");
- return STATUS_UNSUCCESSFUL;
+ DPRINT("An FDO was not attached\n");
+ return STATUS_UNSUCCESSFUL;
}
- KeInitializeEvent(&Event,
- NotificationEvent,
- FALSE);
-
- Irp = IoBuildSynchronousFsdRequest(IRP_MJ_POWER,
- Fdo,
- NULL,
- 0,
- NULL,
- &Event,
- &IoStatusBlock);
-
- IrpSp = IoGetNextIrpStackLocation(Irp);
- IrpSp->MinorFunction = IRP_MN_SET_POWER;
- IrpSp->Parameters.Power.Type = SystemPowerState;
- IrpSp->Parameters.Power.State.SystemState = PowerState;
-
- Status = PoCallDriver(Fdo, Irp);
- if (Status == STATUS_PENDING)
- {
- KeWaitForSingleObject(&Event,
- Executive,
- KernelMode,
- FALSE,
- NULL);
+ KeInitializeEvent(&Event,
+ NotificationEvent,
+ FALSE);
+
+ Irp = IoBuildSynchronousFsdRequest(IRP_MJ_POWER,
+ Fdo,
+ NULL,
+ 0,
+ NULL,
+ &Event,
+ &IoStatusBlock);
+
+ IrpSp = IoGetNextIrpStackLocation(Irp);
+ IrpSp->MinorFunction = IRP_MN_SET_POWER;
+ IrpSp->Parameters.Power.Type = SystemPowerState;
+ IrpSp->Parameters.Power.State.SystemState = PowerState;
+
+ DPRINT("Calling ACPI driver");
+ Status = PoCallDriver(Fdo, Irp);
+ if (Status == STATUS_PENDING)
+ {
+ KeWaitForSingleObject(&Event,
+ Executive,
+ KernelMode,
+ FALSE,
+ NULL);
Status = IoStatusBlock.Status;
}
- ObDereferenceObject(Fdo);
+ ObDereferenceObject(Fdo);
- return Status;
+ return Status;
}
BOOLEAN
KeInitializeTimerEx(&Prcb->PowerState.PerfTimer, SynchronizationTimer);
}
+/* PUBLIC FUNCTIONS **********************************************************/
+
/*
* @unimplemented
*/
NTSTATUS
-STDCALL
-NtInitiatePowerAction (
- IN POWER_ACTION SystemAction,
- IN SYSTEM_POWER_STATE MinSystemState,
- IN ULONG Flags,
- IN BOOLEAN Asynchronous)
+NTAPI
+PoCancelDeviceNotify(IN PVOID NotifyBlock)
{
- UNIMPLEMENTED;
- return STATUS_NOT_IMPLEMENTED;
+ UNIMPLEMENTED;
+ return STATUS_NOT_IMPLEMENTED;
}
/*
* @unimplemented
*/
NTSTATUS
-STDCALL
-NtPowerInformation(
- IN POWER_INFORMATION_LEVEL PowerInformationLevel,
- IN PVOID InputBuffer OPTIONAL,
- IN ULONG InputBufferLength,
- OUT PVOID OutputBuffer OPTIONAL,
- IN ULONG OutputBufferLength
- )
+NTAPI
+PoRegisterDeviceNotify(OUT PVOID Unknown0,
+ IN ULONG Unknown1,
+ IN ULONG Unknown2,
+ IN ULONG Unknown3,
+ IN PVOID Unknown4,
+ IN PVOID Unknown5)
{
- NTSTATUS Status;
-
- PAGED_CODE();
-
- DPRINT("NtPowerInformation(PowerInformationLevel 0x%x, InputBuffer 0x%x, "
- "InputBufferLength 0x%x, OutputBuffer 0x%x, OutputBufferLength 0x%x)\n",
- PowerInformationLevel,
- InputBuffer, InputBufferLength,
- OutputBuffer, OutputBufferLength);
- switch (PowerInformationLevel)
- {
- case SystemBatteryState:
- {
- PSYSTEM_BATTERY_STATE BatteryState = (PSYSTEM_BATTERY_STATE)OutputBuffer;
-
- if (InputBuffer != NULL)
- return STATUS_INVALID_PARAMETER;
- if (OutputBufferLength < sizeof(SYSTEM_BATTERY_STATE))
- return STATUS_BUFFER_TOO_SMALL;
-
- /* Just zero the struct (and thus set BatteryState->BatteryPresent = FALSE) */
- RtlZeroMemory(BatteryState, sizeof(SYSTEM_BATTERY_STATE));
- BatteryState->EstimatedTime = (ULONG)-1;
-
- Status = STATUS_SUCCESS;
- break;
- }
-
- default:
- Status = STATUS_NOT_IMPLEMENTED;
- DPRINT1("PowerInformationLevel 0x%x is UNIMPLEMENTED! Have a nice day.\n",
- PowerInformationLevel);
- break;
- }
-
- return Status;
+ UNIMPLEMENTED;
+ return STATUS_NOT_IMPLEMENTED;
}
+/*
+ * @unimplemented
+ */
+VOID
+NTAPI
+PoShutdownBugCheck(IN BOOLEAN LogError,
+ IN ULONG BugCheckCode,
+ IN ULONG_PTR BugCheckParameter1,
+ IN ULONG_PTR BugCheckParameter2,
+ IN ULONG_PTR BugCheckParameter3,
+ IN ULONG_PTR BugCheckParameter4)
+{
+ DPRINT1("PoShutdownBugCheck called\n");
+
+ /* FIXME: Log error if requested */
+ /* FIXME: Initiate a shutdown */
+
+ /* Bugcheck the system */
+ KeBugCheckEx(BugCheckCode,
+ BugCheckParameter1,
+ BugCheckParameter2,
+ BugCheckParameter3,
+ BugCheckParameter4);
+}
+
+/*
+ * @unimplemented
+ */
+NTSTATUS
+NTAPI
+PoRequestShutdownEvent(OUT PVOID *Event)
+{
+ UNIMPLEMENTED;
+ return STATUS_NOT_IMPLEMENTED;
+}
+
+/*
+ * @unimplemented
+ */
+VOID
+NTAPI
+PoSetHiberRange(IN PVOID HiberContext,
+ IN ULONG Flags,
+ IN OUT PVOID StartPage,
+ IN ULONG Length,
+ IN ULONG PageTag)
+{
+ UNIMPLEMENTED;
+ return;
+}
+/*
+ * @implemented
+ */
NTSTATUS
-STDCALL
-PoQueueShutdownWorkItem(
- IN PWORK_QUEUE_ITEM WorkItem
- )
+NTAPI
+PoCallDriver(IN PDEVICE_OBJECT DeviceObject,
+ IN OUT PIRP Irp)
{
- PAGED_CODE();
+ NTSTATUS Status;
- DPRINT1("PoQueueShutdownWorkItem(%p)\n", WorkItem);
+ /* Forward to Io -- FIXME! */
+ Status = IoCallDriver(DeviceObject, Irp);
- return STATUS_NOT_IMPLEMENTED;
+ /* Return status */
+ return Status;
+}
+
+/*
+ * @unimplemented
+ */
+PULONG
+NTAPI
+PoRegisterDeviceForIdleDetection(IN PDEVICE_OBJECT DeviceObject,
+ IN ULONG ConservationIdleTime,
+ IN ULONG PerformanceIdleTime,
+ IN DEVICE_POWER_STATE State)
+{
+ UNIMPLEMENTED;
+ return NULL;
+}
+
+/*
+ * @unimplemented
+ */
+PVOID
+NTAPI
+PoRegisterSystemState(IN PVOID StateHandle,
+ IN EXECUTION_STATE Flags)
+{
+ UNIMPLEMENTED;
+ return NULL;
+}
+
+/*
+ * @implemented
+ */
+NTSTATUS
+NTAPI
+PoRequestPowerIrp(IN PDEVICE_OBJECT DeviceObject,
+ IN UCHAR MinorFunction,
+ IN POWER_STATE PowerState,
+ IN PREQUEST_POWER_COMPLETE CompletionFunction,
+ IN PVOID Context,
+ OUT PIRP *pIrp OPTIONAL)
+{
+ PDEVICE_OBJECT TopDeviceObject;
+ PIO_STACK_LOCATION Stack;
+ PIRP Irp;
+ PIO_STATUS_BLOCK IoStatusBlock;
+ PREQUEST_POWER_ITEM RequestPowerItem;
+ NTSTATUS Status;
+
+ if (MinorFunction != IRP_MN_QUERY_POWER
+ && MinorFunction != IRP_MN_SET_POWER
+ && MinorFunction != IRP_MN_WAIT_WAKE)
+ return STATUS_INVALID_PARAMETER_2;
+
+ RequestPowerItem = ExAllocatePool(NonPagedPool, sizeof(REQUEST_POWER_ITEM));
+ if (!RequestPowerItem)
+ return STATUS_INSUFFICIENT_RESOURCES;
+ IoStatusBlock = ExAllocatePool(NonPagedPool, sizeof(IO_STATUS_BLOCK));
+ if (!IoStatusBlock)
+ {
+ ExFreePool(RequestPowerItem);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* Always call the top of the device stack */
+ TopDeviceObject = IoGetAttachedDeviceReference(DeviceObject);
+
+ Irp = IoBuildSynchronousFsdRequest(IRP_MJ_PNP,
+ TopDeviceObject,
+ NULL,
+ 0,
+ NULL,
+ NULL,
+ IoStatusBlock);
+ if (!Irp)
+ {
+ ExFreePool(RequestPowerItem);
+ ExFreePool(IoStatusBlock);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* POWER IRPs are always initialized with a status code of
+ STATUS_NOT_IMPLEMENTED */
+ Irp->IoStatus.Status = STATUS_NOT_IMPLEMENTED;
+ Irp->IoStatus.Information = 0;
+
+ Stack = IoGetNextIrpStackLocation(Irp);
+ Stack->MinorFunction = MinorFunction;
+ if (MinorFunction == IRP_MN_WAIT_WAKE)
+ Stack->Parameters.WaitWake.PowerState = PowerState.SystemState;
+ else
+ Stack->Parameters.WaitWake.PowerState = PowerState.DeviceState;
+
+ RequestPowerItem->CompletionRoutine = CompletionFunction;
+ RequestPowerItem->PowerState = PowerState;
+ RequestPowerItem->Context = Context;
+
+ if (pIrp != NULL)
+ *pIrp = Irp;
+
+ IoSetCompletionRoutine(Irp, PopRequestPowerIrpCompletion, RequestPowerItem, TRUE, TRUE, TRUE);
+ Status = IoCallDriver(TopDeviceObject, Irp);
+
+ /* Always return STATUS_PENDING. The completion routine
+ * will call CompletionFunction and complete the Irp.
+ */
+ return STATUS_PENDING;
+}
+
+/*
+ * @unimplemented
+ */
+POWER_STATE
+NTAPI
+PoSetPowerState(IN PDEVICE_OBJECT DeviceObject,
+ IN POWER_STATE_TYPE Type,
+ IN POWER_STATE State)
+{
+ POWER_STATE ps;
+
+ ASSERT_IRQL_LESS_OR_EQUAL(DISPATCH_LEVEL);
+
+ ps.SystemState = PowerSystemWorking; // Fully on
+ ps.DeviceState = PowerDeviceD0; // Fully on
+
+ return ps;
+}
+
+/*
+ * @unimplemented
+ */
+VOID
+NTAPI
+PoSetSystemState(IN EXECUTION_STATE Flags)
+{
+ UNIMPLEMENTED;
+}
+
+/*
+ * @unimplemented
+ */
+VOID
+NTAPI
+PoStartNextPowerIrp(IN PIRP Irp)
+{
+ UNIMPLEMENTED;
+}
+
+/*
+ * @unimplemented
+ */
+VOID
+NTAPI
+PoUnregisterSystemState(IN PVOID StateHandle)
+{
+ UNIMPLEMENTED;
+}
+
+/*
+ * @unimplemented
+ */
+NTSTATUS
+NTAPI
+PoQueueShutdownWorkItem(IN PWORK_QUEUE_ITEM WorkItem)
+{
+ PAGED_CODE();
+
+ UNIMPLEMENTED;
+ return STATUS_NOT_IMPLEMENTED;
+}
+
+/*
+ * @unimplemented
+ */
+NTSTATUS
+NTAPI
+NtInitiatePowerAction (IN POWER_ACTION SystemAction,
+ IN SYSTEM_POWER_STATE MinSystemState,
+ IN ULONG Flags,
+ IN BOOLEAN Asynchronous)
+{
+ UNIMPLEMENTED;
+ return STATUS_NOT_IMPLEMENTED;
+}
+
+/*
+ * @unimplemented
+ */
+NTSTATUS
+NTAPI
+NtPowerInformation(IN POWER_INFORMATION_LEVEL PowerInformationLevel,
+ IN PVOID InputBuffer OPTIONAL,
+ IN ULONG InputBufferLength,
+ OUT PVOID OutputBuffer OPTIONAL,
+ IN ULONG OutputBufferLength)
+{
+ NTSTATUS Status;
+
+ PAGED_CODE();
+
+ DPRINT("NtPowerInformation(PowerInformationLevel 0x%x, InputBuffer 0x%x, "
+ "InputBufferLength 0x%x, OutputBuffer 0x%x, OutputBufferLength 0x%x)\n",
+ PowerInformationLevel,
+ InputBuffer, InputBufferLength,
+ OutputBuffer, OutputBufferLength);
+
+ switch (PowerInformationLevel)
+ {
+ case SystemBatteryState:
+ {
+ PSYSTEM_BATTERY_STATE BatteryState = (PSYSTEM_BATTERY_STATE)OutputBuffer;
+
+ if (InputBuffer != NULL)
+ return STATUS_INVALID_PARAMETER;
+ if (OutputBufferLength < sizeof(SYSTEM_BATTERY_STATE))
+ return STATUS_BUFFER_TOO_SMALL;
+
+ /* Just zero the struct (and thus set BatteryState->BatteryPresent = FALSE) */
+ RtlZeroMemory(BatteryState, sizeof(SYSTEM_BATTERY_STATE));
+ BatteryState->EstimatedTime = (ULONG)-1;
+
+ Status = STATUS_SUCCESS;
+ break;
+ }
+ case SystemPowerCapabilities:
+ {
+ PSYSTEM_POWER_CAPABILITIES PowerCapabilities = (PSYSTEM_POWER_CAPABILITIES)OutputBuffer;
+
+ if (InputBuffer != NULL)
+ return STATUS_INVALID_PARAMETER;
+ if (OutputBufferLength < sizeof(SYSTEM_POWER_CAPABILITIES))
+ return STATUS_BUFFER_TOO_SMALL;
+
+ /* Just zero the struct (and thus set BatteryState->BatteryPresent = FALSE) */
+ RtlZeroMemory(PowerCapabilities, sizeof(SYSTEM_POWER_CAPABILITIES));
+ //PowerCapabilities->SystemBatteriesPresent = 0;
+
+ Status = STATUS_SUCCESS;
+ break;
+ }
+
+ default:
+ Status = STATUS_NOT_IMPLEMENTED;
+ DPRINT1("PowerInformationLevel 0x%x is UNIMPLEMENTED! Have a nice day.\n",
+ PowerInformationLevel);
+ break;
+ }
+
+ return Status;
}
NTSTATUS
NtSetThreadExecutionState(IN EXECUTION_STATE esFlags,
OUT EXECUTION_STATE *PreviousFlags)
{
- UNIMPLEMENTED;
- return STATUS_NOT_IMPLEMENTED;
-}
+ PKTHREAD Thread = KeGetCurrentThread();
+ KPROCESSOR_MODE PreviousMode = KeGetPreviousMode();
+ EXECUTION_STATE PreviousState;
+ PAGED_CODE();
+
+ /* Validate flags */
+ if (esFlags & ~(ES_CONTINUOUS | ES_USER_PRESENT))
+ {
+ /* Fail the request */
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Check for user parameters */
+ if (PreviousMode != KernelMode)
+ {
+ /* Protect the probes */
+ _SEH2_TRY
+ {
+ /* Check if the pointer is valid */
+ ProbeForWriteUlong(PreviousFlags);
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* It isn't -- fail */
+ _SEH2_YIELD(return _SEH2_GetExceptionCode());
+ }
+ _SEH2_END;
+ }
-/* EOF */
+ /* Save the previous state, always masking in the continous flag */
+ PreviousState = Thread->PowerState | ES_CONTINUOUS;
+
+ /* Check if we need to update the power state */
+ if (esFlags & ES_CONTINUOUS) Thread->PowerState = esFlags;
+
+ /* Protect the write back to user mode */
+ _SEH2_TRY
+ {
+ /* Return the previous flags */
+ *PreviousFlags = PreviousState;
+ }
+ _SEH2_EXCEPT(ExSystemExceptionFilter())
+ {
+ /* Something's wrong, fail */
+ _SEH2_YIELD(return _SEH2_GetExceptionCode());
+ }
+ _SEH2_END;
+
+ /* All is good */
+ return STATUS_SUCCESS;
+}
projects / reactos.git / blobdiff