655 lines
18 KiB
C
655 lines
18 KiB
C
/*++ BUILD Version: 0001 // Increment this if a change has global effects
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Copyright (c) Microsoft Corporation. All rights reserved.
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Module Name:
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ntpoapi.h
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Abstract:
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This module contains the user APIs for the NT Power Management.
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Author:
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Revision History:
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--*/
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#ifndef _NTPOAPI_
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#define _NTPOAPI_
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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//
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// Power Management user APIs
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//
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// begin_ntddk begin_ntifs begin_nthal begin_ntminiport begin_wdm
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#ifndef _PO_DDK_
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#define _PO_DDK_
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// begin_winnt
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typedef enum _SYSTEM_POWER_STATE {
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PowerSystemUnspecified = 0,
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PowerSystemWorking = 1,
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PowerSystemSleeping1 = 2,
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PowerSystemSleeping2 = 3,
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PowerSystemSleeping3 = 4,
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PowerSystemHibernate = 5,
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PowerSystemShutdown = 6,
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PowerSystemMaximum = 7
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} SYSTEM_POWER_STATE, *PSYSTEM_POWER_STATE;
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#define POWER_SYSTEM_MAXIMUM 7
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typedef enum {
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PowerActionNone = 0,
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PowerActionReserved,
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PowerActionSleep,
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PowerActionHibernate,
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PowerActionShutdown,
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PowerActionShutdownReset,
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PowerActionShutdownOff,
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PowerActionWarmEject
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} POWER_ACTION, *PPOWER_ACTION;
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typedef enum _DEVICE_POWER_STATE {
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PowerDeviceUnspecified = 0,
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PowerDeviceD0,
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PowerDeviceD1,
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PowerDeviceD2,
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PowerDeviceD3,
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PowerDeviceMaximum
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} DEVICE_POWER_STATE, *PDEVICE_POWER_STATE;
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// end_winnt
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typedef union _POWER_STATE {
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SYSTEM_POWER_STATE SystemState;
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DEVICE_POWER_STATE DeviceState;
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} POWER_STATE, *PPOWER_STATE;
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typedef enum _POWER_STATE_TYPE {
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SystemPowerState = 0,
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DevicePowerState
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} POWER_STATE_TYPE, *PPOWER_STATE_TYPE;
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//
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// Generic power related IOCTLs
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//
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#define IOCTL_QUERY_DEVICE_POWER_STATE \
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CTL_CODE(FILE_DEVICE_BATTERY, 0x0, METHOD_BUFFERED, FILE_READ_ACCESS)
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#define IOCTL_SET_DEVICE_WAKE \
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CTL_CODE(FILE_DEVICE_BATTERY, 0x1, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#define IOCTL_CANCEL_DEVICE_WAKE \
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CTL_CODE(FILE_DEVICE_BATTERY, 0x2, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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//
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// Defines for W32 interfaces
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//
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// begin_winnt
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#define ES_SYSTEM_REQUIRED ((ULONG)0x00000001)
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#define ES_DISPLAY_REQUIRED ((ULONG)0x00000002)
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#define ES_USER_PRESENT ((ULONG)0x00000004)
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#define ES_CONTINUOUS ((ULONG)0x80000000)
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typedef ULONG EXECUTION_STATE;
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typedef enum {
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LT_DONT_CARE,
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LT_LOWEST_LATENCY
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} LATENCY_TIME;
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// end_ntminiport end_ntifs end_wdm end_ntddk
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//-----------------------------------------------------------------------------
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// Device Power Information
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// Accessable via CM_Get_DevInst_Registry_Property_Ex(CM_DRP_DEVICE_POWER_DATA)
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//-----------------------------------------------------------------------------
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#define PDCAP_D0_SUPPORTED 0x00000001
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#define PDCAP_D1_SUPPORTED 0x00000002
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#define PDCAP_D2_SUPPORTED 0x00000004
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#define PDCAP_D3_SUPPORTED 0x00000008
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#define PDCAP_WAKE_FROM_D0_SUPPORTED 0x00000010
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#define PDCAP_WAKE_FROM_D1_SUPPORTED 0x00000020
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#define PDCAP_WAKE_FROM_D2_SUPPORTED 0x00000040
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#define PDCAP_WAKE_FROM_D3_SUPPORTED 0x00000080
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#define PDCAP_WARM_EJECT_SUPPORTED 0x00000100
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typedef struct CM_Power_Data_s {
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ULONG PD_Size;
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DEVICE_POWER_STATE PD_MostRecentPowerState;
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ULONG PD_Capabilities;
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ULONG PD_D1Latency;
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ULONG PD_D2Latency;
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ULONG PD_D3Latency;
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DEVICE_POWER_STATE PD_PowerStateMapping[POWER_SYSTEM_MAXIMUM];
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SYSTEM_POWER_STATE PD_DeepestSystemWake;
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} CM_POWER_DATA, *PCM_POWER_DATA;
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// begin_ntddk
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typedef enum {
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SystemPowerPolicyAc,
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SystemPowerPolicyDc,
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VerifySystemPolicyAc,
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VerifySystemPolicyDc,
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SystemPowerCapabilities,
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SystemBatteryState,
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SystemPowerStateHandler,
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ProcessorStateHandler,
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SystemPowerPolicyCurrent,
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AdministratorPowerPolicy,
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SystemReserveHiberFile,
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ProcessorInformation,
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SystemPowerInformation,
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ProcessorStateHandler2,
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LastWakeTime, // Compare with KeQueryInterruptTime()
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LastSleepTime, // Compare with KeQueryInterruptTime()
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SystemExecutionState,
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SystemPowerStateNotifyHandler,
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ProcessorPowerPolicyAc,
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ProcessorPowerPolicyDc,
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VerifyProcessorPowerPolicyAc,
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VerifyProcessorPowerPolicyDc,
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ProcessorPowerPolicyCurrent
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} POWER_INFORMATION_LEVEL;
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// begin_wdm
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//
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// System power manager capabilities
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//
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typedef struct {
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ULONG Granularity;
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ULONG Capacity;
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} BATTERY_REPORTING_SCALE, *PBATTERY_REPORTING_SCALE;
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// end_winnt
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// begin_ntminiport
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// begin_ntifs
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#endif // !_PO_DDK_
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// end_ntddk end_ntminiport end_wdm end_ntifs
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#define POWER_PERF_SCALE 100
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#define PERF_LEVEL_TO_PERCENT(_x_) ((_x_ * 1000) / (POWER_PERF_SCALE * 10))
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#define PERCENT_TO_PERF_LEVEL(_x_) ((_x_ * POWER_PERF_SCALE * 10) / 1000)
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//
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// Policy manager state handler interfaces
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//
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// power state handlers
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typedef enum {
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PowerStateSleeping1,
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PowerStateSleeping2,
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PowerStateSleeping3,
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PowerStateSleeping4,
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PowerStateSleeping4Firmware,
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PowerStateShutdownReset,
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PowerStateShutdownOff,
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PowerStateMaximum
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} POWER_STATE_HANDLER_TYPE, *PPOWER_STATE_HANDLER_TYPE;
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typedef
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NTSTATUS
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(*PENTER_STATE_SYSTEM_HANDLER)(
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IN PVOID SystemContext
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);
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typedef
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NTSTATUS
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(*PENTER_STATE_HANDLER)(
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IN PVOID Context,
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IN PENTER_STATE_SYSTEM_HANDLER SystemHandler OPTIONAL,
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IN PVOID SystemContext,
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IN LONG NumberProcessors,
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IN volatile PLONG Number
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);
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typedef struct {
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POWER_STATE_HANDLER_TYPE Type;
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BOOLEAN RtcWake;
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UCHAR Spare[3];
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PENTER_STATE_HANDLER Handler;
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PVOID Context;
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} POWER_STATE_HANDLER, *PPOWER_STATE_HANDLER;
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typedef
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NTSTATUS
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(*PENTER_STATE_NOTIFY_HANDLER)(
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IN POWER_STATE_HANDLER_TYPE State,
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IN PVOID Context,
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IN BOOLEAN Entering
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);
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typedef struct {
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PENTER_STATE_NOTIFY_HANDLER Handler;
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PVOID Context;
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} POWER_STATE_NOTIFY_HANDLER, *PPOWER_STATE_NOTIFY_HANDLER;
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NTSYSCALLAPI
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NTSTATUS
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NTAPI
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NtPowerInformation(
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IN POWER_INFORMATION_LEVEL InformationLevel,
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IN PVOID InputBuffer OPTIONAL,
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IN ULONG InputBufferLength,
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OUT PVOID OutputBuffer OPTIONAL,
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IN ULONG OutputBufferLength
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);
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// processor idle functions
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typedef struct {
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ULONGLONG StartTime;
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ULONGLONG EndTime;
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ULONG IdleHandlerReserved[4];
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} PROCESSOR_IDLE_TIMES, *PPROCESSOR_IDLE_TIMES;
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typedef
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BOOLEAN
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(FASTCALL *PPROCESSOR_IDLE_HANDLER) (
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IN OUT PPROCESSOR_IDLE_TIMES IdleTimes
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);
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typedef struct {
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ULONG HardwareLatency;
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PPROCESSOR_IDLE_HANDLER Handler;
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} PROCESSOR_IDLE_HANDLER_INFO, *PPROCESSOR_IDLE_HANDLER_INFO;
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typedef
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VOID
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(FASTCALL *PSET_PROCESSOR_THROTTLE) (
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IN UCHAR Throttle
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);
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typedef
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NTSTATUS
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(FASTCALL *PSET_PROCESSOR_THROTTLE2) (
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IN UCHAR Throttle
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);
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#define MAX_IDLE_HANDLERS 3
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typedef struct {
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UCHAR ThrottleScale;
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BOOLEAN ThrottleOnIdle;
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PSET_PROCESSOR_THROTTLE SetThrottle;
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ULONG NumIdleHandlers;
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PROCESSOR_IDLE_HANDLER_INFO IdleHandler[MAX_IDLE_HANDLERS];
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} PROCESSOR_STATE_HANDLER, *PPROCESSOR_STATE_HANDLER;
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// Processor_Perf_Level Flags
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#define PROCESSOR_STATE_TYPE_PERFORMANCE 0x1
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#define PROCESSOR_STATE_TYPE_THROTTLE 0x2
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typedef struct {
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UCHAR PercentFrequency; // max == POWER_PERF_SCALE
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UCHAR Reserved;
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USHORT Flags;
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} PROCESSOR_PERF_LEVEL, *PPROCESSOR_PERF_LEVEL;
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typedef struct {
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UCHAR PercentFrequency; // max == POWER_PERF_SCALE
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UCHAR MinCapacity; // battery capacity %
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USHORT Power; // in milliwatts
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UCHAR IncreaseLevel; // goto higher state
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UCHAR DecreaseLevel; // goto lower state
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USHORT Flags;
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ULONG IncreaseTime; // in tick counts
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ULONG DecreaseTime; // in tick counts
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ULONG IncreaseCount; // goto higher state
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ULONG DecreaseCount; // goto lower state
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ULONGLONG PerformanceTime; // Tick count
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} PROCESSOR_PERF_STATE, *PPROCESSOR_PERF_STATE;
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typedef struct {
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ULONG NumIdleHandlers;
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PROCESSOR_IDLE_HANDLER_INFO IdleHandler[MAX_IDLE_HANDLERS];
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PSET_PROCESSOR_THROTTLE2 SetPerfLevel;
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ULONG HardwareLatency;
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UCHAR NumPerfStates;
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PROCESSOR_PERF_LEVEL PerfLevel[1]; // variable size
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} PROCESSOR_STATE_HANDLER2, *PPROCESSOR_STATE_HANDLER2;
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// begin_winnt
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//
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// Power Policy Management interfaces
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//
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typedef struct {
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POWER_ACTION Action;
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ULONG Flags;
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ULONG EventCode;
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} POWER_ACTION_POLICY, *PPOWER_ACTION_POLICY;
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// POWER_ACTION_POLICY->Flags:
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#define POWER_ACTION_QUERY_ALLOWED 0x00000001
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#define POWER_ACTION_UI_ALLOWED 0x00000002
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#define POWER_ACTION_OVERRIDE_APPS 0x00000004
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#define POWER_ACTION_LIGHTEST_FIRST 0x10000000
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#define POWER_ACTION_LOCK_CONSOLE 0x20000000
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#define POWER_ACTION_DISABLE_WAKES 0x40000000
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#define POWER_ACTION_CRITICAL 0x80000000
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// POWER_ACTION_POLICY->EventCode flags
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#define POWER_LEVEL_USER_NOTIFY_TEXT 0x00000001
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#define POWER_LEVEL_USER_NOTIFY_SOUND 0x00000002
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#define POWER_LEVEL_USER_NOTIFY_EXEC 0x00000004
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#define POWER_USER_NOTIFY_BUTTON 0x00000008
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#define POWER_USER_NOTIFY_SHUTDOWN 0x00000010
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#define POWER_FORCE_TRIGGER_RESET 0x80000000
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// system battery drain policies
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typedef struct {
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BOOLEAN Enable;
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UCHAR Spare[3];
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ULONG BatteryLevel;
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POWER_ACTION_POLICY PowerPolicy;
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SYSTEM_POWER_STATE MinSystemState;
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} SYSTEM_POWER_LEVEL, *PSYSTEM_POWER_LEVEL;
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// Discharge policy constants
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#define NUM_DISCHARGE_POLICIES 4
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#define DISCHARGE_POLICY_CRITICAL 0
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#define DISCHARGE_POLICY_LOW 1
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//
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// Throttling policies
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//
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#define PO_THROTTLE_NONE 0
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#define PO_THROTTLE_CONSTANT 1
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#define PO_THROTTLE_DEGRADE 2
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#define PO_THROTTLE_ADAPTIVE 3
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#define PO_THROTTLE_MAXIMUM 4 // not a policy, just a limit
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// system power policies
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typedef struct _SYSTEM_POWER_POLICY {
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ULONG Revision; // 1
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// events
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POWER_ACTION_POLICY PowerButton;
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POWER_ACTION_POLICY SleepButton;
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POWER_ACTION_POLICY LidClose;
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SYSTEM_POWER_STATE LidOpenWake;
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ULONG Reserved;
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// "system idle" detection
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POWER_ACTION_POLICY Idle;
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ULONG IdleTimeout;
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UCHAR IdleSensitivity;
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// dynamic throttling policy
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// PO_THROTTLE_NONE, PO_THROTTLE_CONSTANT, PO_THROTTLE_DEGRADE, or PO_THROTTLE_ADAPTIVE
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UCHAR DynamicThrottle;
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UCHAR Spare2[2];
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// meaning of power action "sleep"
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SYSTEM_POWER_STATE MinSleep;
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SYSTEM_POWER_STATE MaxSleep;
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SYSTEM_POWER_STATE ReducedLatencySleep;
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ULONG WinLogonFlags;
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// parameters for dozing
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ULONG Spare3;
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ULONG DozeS4Timeout;
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// battery policies
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ULONG BroadcastCapacityResolution;
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SYSTEM_POWER_LEVEL DischargePolicy[NUM_DISCHARGE_POLICIES];
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// video policies
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ULONG VideoTimeout;
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BOOLEAN VideoDimDisplay;
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ULONG VideoReserved[3];
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// hard disk policies
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ULONG SpindownTimeout;
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// processor policies
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BOOLEAN OptimizeForPower;
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UCHAR FanThrottleTolerance;
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UCHAR ForcedThrottle;
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UCHAR MinThrottle;
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POWER_ACTION_POLICY OverThrottled;
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} SYSTEM_POWER_POLICY, *PSYSTEM_POWER_POLICY;
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// processor power policy state
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typedef struct _PROCESSOR_POWER_POLICY_INFO {
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// Time based information (will be converted to kernel units)
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ULONG TimeCheck; // in US
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ULONG DemoteLimit; // in US
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ULONG PromoteLimit; // in US
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// Percentage based information
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UCHAR DemotePercent;
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UCHAR PromotePercent;
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UCHAR Spare[2];
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// Flags
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ULONG AllowDemotion:1;
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ULONG AllowPromotion:1;
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ULONG Reserved:30;
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} PROCESSOR_POWER_POLICY_INFO, *PPROCESSOR_POWER_POLICY_INFO;
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// processor power policy
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typedef struct _PROCESSOR_POWER_POLICY {
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ULONG Revision; // 1
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// Dynamic Throttling Policy
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UCHAR DynamicThrottle;
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UCHAR Spare[3];
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// Flags
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ULONG Reserved;
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// System policy information
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// The Array is last, in case it needs to be grown and the structure
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// revision incremented.
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ULONG PolicyCount;
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PROCESSOR_POWER_POLICY_INFO Policy[3];
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} PROCESSOR_POWER_POLICY, *PPROCESSOR_POWER_POLICY;
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// administrator power policy overrides
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typedef struct _ADMINISTRATOR_POWER_POLICY {
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// meaning of power action "sleep"
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SYSTEM_POWER_STATE MinSleep;
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SYSTEM_POWER_STATE MaxSleep;
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// video policies
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ULONG MinVideoTimeout;
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ULONG MaxVideoTimeout;
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// disk policies
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ULONG MinSpindownTimeout;
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ULONG MaxSpindownTimeout;
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} ADMINISTRATOR_POWER_POLICY, *PADMINISTRATOR_POWER_POLICY;
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// end_winnt
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NTSYSCALLAPI
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NTSTATUS
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NTAPI
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NtSetThreadExecutionState(
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IN EXECUTION_STATE esFlags, // ES_xxx flags
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OUT EXECUTION_STATE *PreviousFlags
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);
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NTSYSCALLAPI
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NTSTATUS
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NTAPI
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NtRequestWakeupLatency(
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IN LATENCY_TIME latency
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);
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NTSYSCALLAPI
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NTSTATUS
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NTAPI
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NtInitiatePowerAction(
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IN POWER_ACTION SystemAction,
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IN SYSTEM_POWER_STATE MinSystemState,
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IN ULONG Flags, // POWER_ACTION_xxx flags
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IN BOOLEAN Asynchronous
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);
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NTSYSCALLAPI // only called by WinLogon
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NTSTATUS
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NTAPI
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NtSetSystemPowerState(
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IN POWER_ACTION SystemAction,
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IN SYSTEM_POWER_STATE MinSystemState,
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IN ULONG Flags // POWER_ACTION_xxx flags
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);
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NTSYSCALLAPI
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NTSTATUS
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NTAPI
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NtGetDevicePowerState(
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IN HANDLE Device,
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OUT DEVICE_POWER_STATE *State
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);
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NTSYSCALLAPI
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NTSTATUS
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NTAPI
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NtCancelDeviceWakeupRequest(
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IN HANDLE Device
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);
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NTSYSCALLAPI
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BOOLEAN
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NTAPI
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NtIsSystemResumeAutomatic(
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VOID
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);
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NTSYSCALLAPI
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NTSTATUS
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NTAPI
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NtRequestDeviceWakeup(
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IN HANDLE Device
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);
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|
|
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|
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// WinLogonFlags:
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|
#define WINLOGON_LOCK_ON_SLEEP 0x00000001
|
|
|
|
// begin_winnt
|
|
|
|
typedef struct {
|
|
// Misc supported system features
|
|
BOOLEAN PowerButtonPresent;
|
|
BOOLEAN SleepButtonPresent;
|
|
BOOLEAN LidPresent;
|
|
BOOLEAN SystemS1;
|
|
BOOLEAN SystemS2;
|
|
BOOLEAN SystemS3;
|
|
BOOLEAN SystemS4; // hibernate
|
|
BOOLEAN SystemS5; // off
|
|
BOOLEAN HiberFilePresent;
|
|
BOOLEAN FullWake;
|
|
BOOLEAN VideoDimPresent;
|
|
BOOLEAN ApmPresent;
|
|
BOOLEAN UpsPresent;
|
|
|
|
// Processors
|
|
BOOLEAN ThermalControl;
|
|
BOOLEAN ProcessorThrottle;
|
|
UCHAR ProcessorMinThrottle;
|
|
UCHAR ProcessorMaxThrottle;
|
|
UCHAR spare2[4];
|
|
|
|
// Disk
|
|
BOOLEAN DiskSpinDown;
|
|
UCHAR spare3[8];
|
|
|
|
// System Battery
|
|
BOOLEAN SystemBatteriesPresent;
|
|
BOOLEAN BatteriesAreShortTerm;
|
|
BATTERY_REPORTING_SCALE BatteryScale[3];
|
|
|
|
// Wake
|
|
SYSTEM_POWER_STATE AcOnLineWake;
|
|
SYSTEM_POWER_STATE SoftLidWake;
|
|
SYSTEM_POWER_STATE RtcWake;
|
|
SYSTEM_POWER_STATE MinDeviceWakeState; // note this may change on driver load
|
|
SYSTEM_POWER_STATE DefaultLowLatencyWake;
|
|
} SYSTEM_POWER_CAPABILITIES, *PSYSTEM_POWER_CAPABILITIES;
|
|
|
|
typedef struct {
|
|
BOOLEAN AcOnLine;
|
|
BOOLEAN BatteryPresent;
|
|
BOOLEAN Charging;
|
|
BOOLEAN Discharging;
|
|
BOOLEAN Spare1[4];
|
|
|
|
ULONG MaxCapacity;
|
|
ULONG RemainingCapacity;
|
|
ULONG Rate;
|
|
ULONG EstimatedTime;
|
|
|
|
ULONG DefaultAlert1;
|
|
ULONG DefaultAlert2;
|
|
} SYSTEM_BATTERY_STATE, *PSYSTEM_BATTERY_STATE;
|
|
|
|
// end_winnt
|
|
// end_nthal
|
|
|
|
typedef struct _PROCESSOR_POWER_INFORMATION {
|
|
ULONG Number;
|
|
ULONG MaxMhz;
|
|
ULONG CurrentMhz;
|
|
ULONG MhzLimit;
|
|
ULONG MaxIdleState;
|
|
ULONG CurrentIdleState;
|
|
} PROCESSOR_POWER_INFORMATION, *PPROCESSOR_POWER_INFORMATION;
|
|
|
|
typedef struct _SYSTEM_POWER_INFORMATION {
|
|
ULONG MaxIdlenessAllowed;
|
|
ULONG Idleness;
|
|
ULONG TimeRemaining;
|
|
UCHAR CoolingMode;
|
|
} SYSTEM_POWER_INFORMATION, *PSYSTEM_POWER_INFORMATION;
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // _NTPOAPI_
|