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 /*
  * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 #ifndef _IOKIT_IOPMPRIVATE_H
 #define _IOKIT_IOPMPRIVATE_H
 
 #include <IOKit/pwr_mgt/IOPM.h>
 
+#pragma mark PM Timeline Logging
+/**************************************************
+*
+* Timeline API Keys - Reports timing details for 
+*   applications, drivers, and system during PM activity
+*
+* For kernel-internal use only
+**************************************************/
+
+// Keys for interfacing with IOPMrootDomain Timeline
+/* @constant kIOPMTimelineDictionaryKey
+ * @abstract RootDomain key for dictionary describing Timeline's info
+ */
+#define kIOPMTimelineDictionaryKey              "PMTimelineLogging"
+
+/* @constant kIOPMTimelineEnabledKey
+ * @abstract Boolean value indicating whether the system is recording PM events.
+ * @discussion Key may be found in the dictionary at IOPMrootDomain's property 
+ * kIOPMTimelineDictionaryKey. uint32_t value; may be 0.
+ */
+#define kIOPMTimelineEnabledKey                 "TimelineEnabled"
+
+/* @constant kIOMPTimelineSystemNumberTrackedKey
+ * @abstract The maximum number of system power events the system may record.
+ * @discussion Key may be found in the dictionary at IOPMrootDomain's property 
+ * kIOPMTimelineDictionaryKey. uint32_t value; may be 0.
+ */
+#define kIOPMTimelineSystemNumberTrackedKey     "TimelineSystemEventsTracked"
+
+/* @constant kIOPMTimelineSystemBufferSizeKey
+ * @abstract Size in bytes  of buffer recording system PM events
+ * @discussion Key may be found in the dictionary at IOPMrootDomain's property 
+ * kIOPMTimelineDictionaryKey. uint32_t value; may be 0.
+ */
+#define kIOPMTimelineSystemBufferSizeKey        "TimelineSystemBufferSize"
+
+
+
+/* @constant kIOPMEventTypeIntermediateFlag
+ * @abstract This bit indicates the event is an intermediate event
+ *      which must occur within a major system power event.
+ */
+#define kIOPMEventTypeIntermediateFlag              0x10000000
+
+/* @enum SystemEventTypes
+ * @abstract Potential system events logged in the system event record.
+ */
+enum {
+       kIOPMEventTypeUndefined                     = 0,
+
+    /* Event types mark driver events 
+     */
+    kIOPMEventTypeSetPowerStateImmediate        = 1001,
+    kIOPMEventTypeSetPowerStateDelayed          = 1002,
+    kIOPMEventTypePSWillChangeTo                = 1003,
+    kIOPMEventTypePSDidChangeTo                 = 1004,
+    kIOPMEventTypeAppResponse                   = 1005,
+
+
+    /* Start and stop event types bracket major
+     * system power management events.
+     */
+       kIOPMEventTypeSleep                         = 2001,
+       kIOPMEventTypeSleepDone                     = 2002,
+       kIOPMEventTypeWake                          = 3001,
+       kIOPMEventTypeWakeDone                      = 3002,
+       kIOPMEventTypeDoze                          = 4001,
+       kIOPMEventTypeDozeDone                      = 4002,
+       kIOPMEventTypeLiteWakeUp                    = 5001,
+       kIOPMEventTypeLiteWakeUpDone                = 5002,
+       kIOPMEventTypeLiteWakeDown                  = 5003,
+       kIOPMEventTypeLiteWakeDownDone              = 5004,
+       kIOPMEventTypeUUIDSet                       = 6001,
+       kIOPMEventTypeUUIDClear                     = 6002,
+
+    /* Intermediate events that may only occur within the bounds
+     * of a major system event (between the event's initiation and its "done event".)
+     * e.g. chronologically kIOPMEventTypeSleep may be followed by one or more
+     *      intermediate events, which then must be followed by kIOPMEventTypeSleepDone.
+     *
+     * The intermediate events below will always occur in a Sleep or Wake event, and may
+     *      or may not occur for any of the other events.
+     */
+    kIOPMEventTypeAppNotificationsFinished      = 501 | kIOPMEventTypeIntermediateFlag,
+    kIOPMEventTypeDriverNotificationsFinished   = 502 | kIOPMEventTypeIntermediateFlag,
+    kIOPMEventTypeCalTimeChange                 = 503 | kIOPMEventTypeIntermediateFlag
+};
+
+
+/* @enum SystemSleepReasons 
+ * @abstract The potential causes for system sleep as logged in the system event record.
+ */
+enum {
+    kIOPMSleepReasonClamshell                   = 101,
+    kIOPMSleepReasonPowerButton                 = 102,
+    kIOPMSleepReasonSoftware                    = 103,
+    kIOPMSleepReasonOSSwitchHibernate           = 104,
+    kIOPMSleepReasonIdle                        = 105,
+    kIOPMSleepReasonLowPower                    = 106,
+    kIOPMSleepReasonThermalEmergency            = 107,
+    kIOPMSleepReasonMaintenance                 = 108,
+    kIOPMSleepReasonSleepServiceExit            = 109,
+    kIOPMSleepReasonDarkWakeThermalEmergency    = 110
+};
+
+/*
+ * Possible C-string sleep reasons found under kRootDomainSleepReasonsKey
+ */
+#define kIOPMClamshellSleepKey                      "Clamshell Sleep"
+#define kIOPMPowerButtonSleepKey                    "Power Button Sleep"
+#define kIOPMSoftwareSleepKey                       "Software Sleep"
+#define kIOPMOSSwitchHibernationKey                 "OS Switch Sleep"
+#define kIOPMIdleSleepKey                           "Idle Sleep"
+#define kIOPMLowPowerSleepKey                       "Low Power Sleep"
+#define kIOPMThermalEmergencySleepKey               "Thermal Emergency Sleep"
+#define kIOPMSleepServiceExitKey                    "Sleep Service Back to Sleep"
+#define kIOPMDarkWakeThermalEmergencyKey            "Dark Wake Thermal Emergency"
+
+
+enum {
+    kIOPMMaxSystemEventsTracked = 25000,
+    kIOPMDefaultSystemEventsTracked = 1000,
+    kMaxPMStringLength = 40,
+};
+
+/* @struct IOPMSystemEventRecord
+ * @abstract Records a singe power event to a particular PM entity.
+ * This includes changes to a driver's power state, application responses
+ * to PM notifications, or system power management milestones.
+ */
+typedef struct {
+    union {
+        // For DRIVER events
+        char        ownerName[kMaxPMStringLength];
+        // For SYSTEM events, uuid contains the string describing the active UUID
+        char        uuid[kMaxPMStringLength];
+    };
+
+    // For DRIVER events - records the name of the driver who generated the notifications.
+    char        interestName[kMaxPMStringLength];
+    
+    // DRIVER & SYSTEM - Times are stored as uint64_t
+    // The high 32 bytes are the seconds returned from clock_get_calendar_microtime, 
+    // and the low 32 bytes are the accompanying microseconds.
+    uint64_t    timestamp;
+
+    union {
+        // For DRIVER events - ownerDisambiguateID is a unique descriptor of the driver, to disambiguate
+        // several similarly named drivers.
+        uint64_t    ownerDisambiguateID;
+        // For SYSTEM events - eventReason is a value in SystemSleepReason
+        uint64_t    eventReason;
+    };
+    
+    // DRIVER & SYSTEM - eventType is one of 'SystemEventTypes'
+    // The value of eventType determines, among ohter things, whether this is a SYSTEM or
+    //      DRIVER event type.
+    uint32_t    eventType;
+
+    // DRIVER & SYSTEM - eventResult is an IOReturn value
+    uint32_t    eventResult;
+
+    // DRIVER - If defined, elapsedTimeUS records the entire time a transaction took to complete
+    uint32_t    elapsedTimeUS;
+
+    // DRIVER - in power state changes, oldState & newState are PM power state indices.
+    uint8_t     oldState;
+    uint8_t     newState;
+} IOPMSystemEventRecord;
+
+/* @struct IOPMTraceBufferHeader
+ * Occupies the first bytes in the buffer allocated by IOPMrootDomain
+ * Describes the size and current index of the trace buffer
+ */
+typedef struct {
+       uint32_t        sizeBytes;
+       uint32_t    sizeEntries;
+       uint32_t    index;
+} IOPMTraceBufferHeader;
+
+/* Argument to IOPMrootDomain::clientMemoryForType to acquire
+ * memory mapping.
+ */
+enum {
+    kPMRootDomainMapTraceBuffer = 1
+};
+
+/**************************************************
+*
+* Accountability API Ends here
+*
+**************************************************/
+
+
+#pragma mark Stray Bitfields
 // Private power commands issued to root domain
 // bits 0-7 in IOPM.h
 
 enum {
-    kIOPMSetValue              = (1<<16),
+    kIOPMSetValue                   = (1<<16),
     // don't sleep on clamshell closure on a portable with AC connected
-    kIOPMSetDesktopMode                = (1<<17),
+    kIOPMSetDesktopMode             = (1<<17),
     // set state of AC adaptor connected
-    kIOPMSetACAdaptorConnected = (1<<18)
+    kIOPMSetACAdaptorConnected      = (1<<18)
 };
 
-#endif /* ! _IOKIT_IOPMPRIVATE_H */
+/*****************************************************************************/
+/*****************************************************************************/
+
+/*
+ * PM notification types
+ */
+
+/*! @constant kIOPMSleepServiceScheduleImmediate
+ *
+ * Setting type used in calls to IOPMrootDomain::registerPMSettingController
+ * Use this type between powerd and IOKit.framework
+ *
+ */
+#define kIOPMSleepServiceScheduleImmediate     "SleepServiceImmediate"
+
+/*! @constant kIOPMSettingSleepServiceScheduleImmediate
+ *
+ * Setting type used in calls to IOPMrootDomain::registerPMSettingController
+ * Use this type between xnu and AppleRTC
+ */
+#define kIOPMSettingSleepServiceWakeCalendarKey     "SleepServiceWakeCalendarKey"
+
+/*! @constant kIOPMCalendarWakeTypes 
+ *
+ * These are valid values for IOPM.h:IOPMCalendarStruct->selector
+ */
+enum {
+    kPMCalendarTypeMaintenance = 1,
+    kPMCalendarTypeSleepService = 2
+};
+
+
+/* @constant kIOPMStateConsoleShutdown
+ * @abstract Notification of GUI shutdown state available to kexts.
+ * @discussion This type can be passed as arguments to registerPMSettingController()
+ * to receive callbacks.
+ */
+#define kIOPMStateConsoleShutdown   "ConsoleShutdown"
+
+/* @enum ShutdownValues
+ * @abstract Potential values shared with key kIOPMStateConsoleShutdown
+ */
+enum {
+/* @constant kIOPMStateConsoleShutdownNone
+ * @abstract System shutdown (or restart) hasn't started; system is ON.
+ * @discussion Next state: 2
+ */
+    kIOPMStateConsoleShutdownNone   = 1,
+/* @constant kIOPMStateConsoleShutdownPossible
+ * @abstract User has been presented with the option to shutdown or restart. Shutdown may be cancelled.
+ * @discussion Next state may be: 1, 4
+ */
+    kIOPMStateConsoleShutdownPossible = 2,
+/* @constant kIOPMStateConsoleShutdownUnderway
+ * @abstract Shutdown or restart is proceeding. It may still be cancelled.
+ * @discussion Next state may be: 1, 4. This state is currently unused.
+ */
+    kIOPMStateConsoleShutdownUnderway = 3,
+/* @constant kIOPMStateConsoleShutdownCertain
+ * @abstract Shutdown is in progress and irrevocable.
+ * @discussion State remains 4 until power is removed from CPU.
+ */
+    kIOPMStateConsoleShutdownCertain = 4
+};
+
+/* @constant kIOPMSettingSilentRunningKey
+ * @abstract Notification of silent running mode changes to kexts.
+ * @discussion This key can be passed as an argument to registerPMSettingController()
+ * and also identifies the type of PMSetting notification callback.
+ */
+#define kIOPMSettingSilentRunningKey    "SilentRunning"
+#define kIOPMFeatureSilentRunningKey    kIOPMSettingSilentRunningKey
+
+/* @enum SilentRunningFlags
+ * @abstract The kIOPMSettingSilentRunningKey notification provides an OSNumber
+ * object with a value described by the following flags.
+ */
+enum {
+    kIOPMSilentRunningModeOn = 0x00000001
+};
+
+/*****************************************************************************/
+/*****************************************************************************/
+
+/* PM Statistics - event indices 
+ * These are arguments to IOPMrootDomain::pmStatsRecordEvent().
+ */
+enum {
+    kIOPMStatsHibernateImageWrite         = 1,
+    kIOPMStatsHibernateImageRead,
+    kIOPMStatsDriversNotify,
+    kIOPMStatsApplicationNotify,
+    kIOPMStatsLateDriverAcknowledge,
+    kIOPMStatsLateAppAcknowledge,
+    
+    // To designate if you're specifying the start or stop end of 
+    // each of the above events, do a bitwise OR of the appropriate
+    // Start/Stop flag and pass the result to IOPMrootDomain to record
+    // the event.
+    kIOPMStatsEventStartFlag              = (1 << 24),
+    kIOPMStatsEventStopFlag               = (1 << 25)
+};
+
+// Keys for IOPMrootDomain registry properties
+#define kIOPMSleepStatisticsKey                 "SleepStatistics"
+#define kIOPMSleepStatisticsAppsKey             "AppStatistics"
+
+// Application response statistics
+#define kIOPMStatsNameKey                       "Name"
+#define kIOPMStatsPIDKey                        "Pid"
+#define kIOPMStatsTimeMSKey                     "TimeMS"
+#define kIOPMStatsApplicationResponseTypeKey    "ResponseType"
+#define kIOPMStatsMessageTypeKey                "MessageType"
+// PM Statistics: potential values for the key kIOPMStatsApplicationResponseTypeKey
+// entry in the application results array.
+#define kIOPMStatsResponseTimedOut      "ResponseTimedOut"
+#define kIOPMStatsResponseCancel        "ResponseCancel"
+#define kIOPMStatsResponseSlow          "ResponseSlow"
+
+struct PMStatsBounds{
+    uint64_t start;
+    uint64_t stop;
+};
+typedef struct {
+    
+    struct PMStatsBounds    hibWrite;
+    struct PMStatsBounds    hibRead;
+//    bounds    driverNotifySleep;
+//    bounds    driverNotifyWake;
+//    bounds    appNotifySleep;
+//    bounds    appNotifyWake;  
+//    OSDictionary    *tardyApps;    
+//    OSDictionary    *tardyDrivers;
+} PMStatsStruct;
+
+/*****************************************************************************/
+
+/* PM RootDomain tracePoints
+ *
+ * In the sleep/wake process, we expect the sleep trace points to proceed
+ * in increasing order. Once sleep begins with code kIOPMTracePointSleepStarted,
+ * we expect sleep to continue in a monotonically increasing order of tracepoints
+ * to kIOPMTracePointSystemLoginwindowPhase. After trace point SystemLoginWindowPhase,
+ * the system will return to kIOPMTracePointSystemUp.
+ *
+ * If the trace point decreases (instead of increasing) before reaching kIOPMTracePointSystemUp,
+ * that indicates that the sleep process was cancelled. The cancel reason shall be indicated
+ * in the cancel tracepoint. (TBD)
+ */
+
+enum {
+/* When kTracePointSystemUp is the latest tracePoint,
+ * the system is awake. It is not asleep, sleeping, or waking.
+ *
+ * Phase begins: At boot, at completion of wake from sleep,
+ *      immediately following kIOPMTracePointSystemLoginwindowPhase.
+ * Phase ends: When a sleep attempt is initiated.
+ */
+    kIOPMTracePointSystemUp                     = 0,
+
+/* When kIOPMTracePointSleepStarted is the latest tracePoint,
+ * sleep has been initiated.
+ *
+ * Phase begins: At initiation of system sleep (idle or forced).
+ * Phase ends: PM starts to notify applications of system sleep.
+ */
+    kIOPMTracePointSleepStarted                 = 0x10,
+
+/* When kIOPMTracePointSleepApplications is the latest tracePoint,
+ * a system sleep has been initiated and PM waits for responses
+ * from notified applications.
+ *
+ * Phase begins: Begin to asynchronously fire kIOMessageSystemWillSleep
+ *      notifications, and also kIOMessageCanSystemSleep for the idle sleep case.
+ * Phase ends: When PM has received all application responses.
+ */
+    kIOPMTracePointSleepApplications            = 0x11,
+
+/* When kIOPMTracePointSleepPriorityClients is the latest tracePoint,
+ * PM is notifying priority clients and in-kernel system capability
+ * clients, and waiting for any asynchronous completions.
+ *
+ * Phase begins: Synchronous delivery of kIOMessageSystemWillSleep notifications.
+ * Phase ends: All notified clients have acknowledged.
+ */
+    kIOPMTracePointSleepPriorityClients         = 0x12,
+    
+/* When kIOPMTracePointSleepWillChangeInterests is the latest tracePoint,
+ * PM is calling powerStateWillChangeTo() on interested drivers of root domain.
+ *
+ * Phase begins: Dispatch a callout thread to call interested drivers.
+ * Phase ends: Callout thread work done, and acknowledgePowerChange() called
+ *      by drivers that indicated asynchronous completion.
+ */
+    kIOPMTracePointSleepWillChangeInterests     = 0x13,
+
+/* When kIOPMTracePointSleepPowerPlaneDrivers is the latest tracePoint,
+ * PM is directing power plane drivers to power off in leaf-to-root order.
+ *
+ * Phase begins: Root domain informs its power children that it will drop to
+ *      sleep state. This has a cascade effect and triggers all drivers in
+ *      the power plane to transition to a lower power state if necessary.
+ * Phase ends: All power transitions in response to the root domain power
+ *      change have completed.
+ */
+    kIOPMTracePointSleepPowerPlaneDrivers       = 0x14,
+    
+/* When kIOPMTracePointSleepDidChangeInterests is the latest tracePoint,
+ * PM is calling powerStateDidChangeTo() on interested drivers of root domain.
+ *
+ * Phase begins: Dispatch a callout thread to call interested drivers.
+ * Phase ends: Callout thread work done, and acknowledgePowerChange() called
+ *      by drivers that indicated asynchronous completion.
+ */
+    kIOPMTracePointSleepDidChangeInterests      = 0x15,
+
+/* When kIOPMTracePointSleepCapabilityClients is the latest tracePoint,
+ * PM is notifying system capability clients about system sleep.
+ *
+ * Phase begins: Send kIOMessageSystemCapabilityChange notifications to inform
+ *      capability clients that system has lost all capabilities.
+ * Phase ends: Finished sending notifications.
+ */
+    kIOPMTracePointSleepCapabilityClients       = 0x16,
+
+/* When kIOPMTracePointSleepPlatformActions is the latest tracePoint,
+ * PM is calling drivers that have registered a platform sleep action.
+ */
+    kIOPMTracePointSleepPlatformActions         = 0x17,
+
+/* When kIOPMTracePointSleepCPUs is the latest tracePoint,
+ * PM is shutting down all non-boot processors.
+ *
+ * Phase begins: Shutdown all non-boot processors.
+ * Phase ends: Reduced to only the boot processor running.
+ */
+    kIOPMTracePointSleepCPUs                    = 0x18,
+
+/* When kIOPMTracePointSleepPlatformDriver is the latest tracePoint,
+ * PM is executing platform dependent code to prepare for system sleep.
+ */
+    kIOPMTracePointSleepPlatformDriver          = 0x19,
+
+/* When kIOPMTracePointHibernate is the latest tracePoint,
+ * PM is writing the hibernate image to disk.
+ */
+    kIOPMTracePointHibernate                    = 0x1a,
+
+/* When kIOPMTracePointSystemSleep is the latest tracePoint,
+ * PM has recorded the final trace point before the hardware platform
+ * enters sleep state, or low level wakeup is underway - such as restoring
+ * the hibernate image from disk.
+ *
+ * Note: If a system is asleep and then loses power, and it does not have a
+ * hibernate image to restore from (e.g. hibernatemode = 0), then OS X will
+ * interpret this power loss as a failure in kIOPMTracePointSystemSleep.
+ *
+ * Phase begins: Before the OS directs the hardware to enter sleep state.
+ * Phase ends: Control returns to the OS on wake, but before recording the first
+ *      wake trace point.
+ */
+    kIOPMTracePointSystemSleep                  = 0x1f,
+
+/* When kIOPMTracePointWakePlatformDriver is the latest tracePoint,
+ * PM is executing platform dependent code to prepare for system wake.
+ */
+    kIOPMTracePointWakePlatformDriver           = 0x21,
+
+/* When kIOPMTracePointWakePlatformActions is the latest tracePoint,
+ * PM is calling drivers that have registered a platform wake action.
+ */
+    kIOPMTracePointWakePlatformActions          = 0x22,
+
+/* When kIOPMTracePointWakeCPUs is the latest tracePoint,
+ * PM is bringing all non-boot processors online.
+ */
+    kIOPMTracePointWakeCPUs                     = 0x23,
+
+/* When kIOPMTracePointWakeWillPowerOnClients is the latest tracePoint,
+ * PM is sending kIOMessageSystemWillPowerOn to both kernel clients and
+ * applications. PM also notifies system capability clients about the
+ * proposed capability change.
+ *
+ * Phase begins: Send kIOMessageSystemWillPowerOn and
+ *      kIOMessageSystemCapabilityChange notifications.
+ * Phase ends: Finished sending notifications.
+ */
+    kIOPMTracePointWakeWillPowerOnClients       = 0x24,
+
+/* When kIOPMTracePointWakeWillChangeInterests is the latest tracePoint,
+ * PM is calling powerStateWillChangeTo() on interested drivers of root domain.
+ *
+ * Phase begins: Dispatch a callout thread to call interested drivers.
+ * Phase ends: Callout thread work done, and acknowledgePowerChange() called
+ *      by drivers that indicated asynchronous completion.
+ */
+    kIOPMTracePointWakeWillChangeInterests      = 0x25,
+
+/* When kIOPMTracePointWakeDidChangeInterests is the latest tracePoint,
+ * PM is calling powerStateDidChangeTo() on interested drivers of root domain.
+ *
+ * Phase begins: Dispatch a callout thread to call interested drivers.
+ * Phase ends: Callout thread work done, and acknowledgePowerChange() called
+ *      by drivers that indicated asynchronous completion.
+ */
+    kIOPMTracePointWakeDidChangeInterests       = 0x26,
+
+/* When kIOPMTracePointWakePowerPlaneDrivers is the latest tracePoint,
+ * PM is directing power plane drivers to power up in root-to-leaf order.
+ *
+ * Phase begins: Root domain informs its power children that it transitioned
+ *      to ON state. This has a cascade effect and triggers all drivers in
+ *      the power plane to re-evaluate and potentially change power state.
+ * Phase ends: All power transitions in response to the root domain power
+ *      change have completed.
+ */
+    kIOPMTracePointWakePowerPlaneDrivers        = 0x27,
+
+/* When kIOPMTracePointWakeCapabilityClients is the latest tracePoint,
+ * PM is notifying system capability clients about system wake, and waiting
+ * for any asynchronous completions.
+ *
+ * Phase begins: Inform capability clients that system has gained capabilities.
+ * Phase ends: All notified clients have acknowledged.
+ */
+    kIOPMTracePointWakeCapabilityClients        = 0x28,
+
+/* When kIOPMTracePointWakeApplications is the latest tracePoint,
+ * System CPU is powered, PM has powered on each driver.
+ *
+ * Phase begins: Send asynchronous kIOMessageSystemHasPoweredOn notifications.
+ * Phase ends: Finished sending asynchronous notifications.
+ */
+    kIOPMTracePointWakeApplications             = 0x29,
+
+/* kIOPMTracePointSystemLoginwindowPhase
+ * This phase represents a several minute window after the system has powered on.
+ * Higher levels of system diagnostics are in a heightened state of alert in this phase,
+ * in case any user errors occurred that we could not detect in software.
+ *
+ * Phase begins: After IOPMrootDomain sends kIOMessageSystemHasPoweredOn message.
+ * Phase ends: When loginwindow calls IOPMSleepWakeSetUUID(NULL) the system shall 
+ *      be considered awake and usable. The next phase shall be kIOPMTracePointSystemUp.
+ */
+    kIOPMTracePointSystemLoginwindowPhase       = 0x30,
+
+/* When kIOPMTracePointDarkWakeEntry is the latest tracePoint,
+ * PM has started a transition from full wake to dark wake.
+ *
+ * Phase begins: Start transition to dark wake.
+ * Phase ends: System in dark wake. Before recording kIOPMTracePointSystemUp.
+ */
+    kIOPMTracePointDarkWakeEntry                = 0x31,
+
+/* When kIOPMTracePointDarkWakeExit is the latest tracePoint,
+ * PM has started a transition from dark wake to full wake.
+ *
+ * Phase begins: Start transition to full wake.
+ * Phase ends: System in full wake. Before recording kIOPMTracePointSystemUp.
+ */
+    kIOPMTracePointDarkWakeExit                 = 0x32
+};
+
+/*****************************************************************************/
+
+/*
+Ê* kIOPMLoginWindowSecurityDebugKey - identifies PM debug data specific to LoginWindow
+ *  for use with IOPMrootDomain.
+Ê*/
+#define kIOPMLoginWindowSecurityDebugKey        "LoginWindowSecurity"
+
+// For PM internal use only - key to locate sleep failure results within SCDynamicStore.
+#define kIOPMDynamicStoreSleepFailureKey        "SleepFailure"
 
+/*****************************************************************************/
+
+// For IOPMLibPrivate.h
+#define kIOPMSleepWakeFailureKey            "PMFailurePhase"
+#define kIOPMSleepWakeFailureCodeKey        "PMStatusCode"
+#define kIOPMSleepWakeFailureLoginKey       "LWFailurePhase"
+#define kIOPMSleepWakeFailureUUIDKey        "UUID"
+#define kIOPMSleepWakeFailureDateKey        "Date"
+
+/*****************************************************************************
+ *
+ * Root Domain private property keys
+ *
+ *****************************************************************************/
+
+/* kIOPMFeatureAutoPowerOffKey
+ * Feature published if Auto Power Off is supported
+ */
+#define kIOPMFeatureAutoPowerOffKey         "AutoPowerOff"
+
+/* kIOPMAutoPowerOffEnabledKey
+ * Indicates if Auto Power Off is enabled.
+ * It has a boolean value.
+ *  true        == Auto Power Off is enabled
+ *  false       == Auto Power Off is disabled
+ *  not present == Auto Power Off is not supported on this hardware
+ */
+#define kIOPMAutoPowerOffEnabledKey         "AutoPowerOff Enabled"
+
+/* kIOPMAutoPowerOffDelayKey
+ * Key refers to a CFNumberRef that represents the delay in seconds before
+ * entering the Auto Power Off state.  The property is not present if Auto
+ * Power Off is unsupported.
+ */
+#define kIOPMAutoPowerOffDelayKey           "AutoPowerOff Delay"
+
+/* kIOPMAutoPowerOffTimerKey
+ * Key refers to a CFNumberRef that indicates the time in seconds until the
+ * expiration of the Auto Power Off delay period. This value should be used
+ * to program a wake alarm before system sleep.
+ */
+#define kIOPMAutoPowerOffTimerKey           "AutoPowerOff Timer"
+
+/* kIOPMUserWakeAlarmScheduledKey
+ * Key refers to a boolean value that indicates if an user alarm was scheduled
+ * or pending.
+ */
+#define kIOPMUserWakeAlarmScheduledKey      "UserWakeAlarmScheduled"
+
+/* kIOPMDeepIdleSupportedKey
+ * Presence of this key indicates Deep Idle is supported on this platform.
+ * Key will always refer to a value of kOSBooleanTrue.
+ */
+#define kIOPMDeepIdleSupportedKey           "IOPMDeepIdleSupported"
+
+/*****************************************************************************
+ *
+ * System Sleep Policy
+ *
+ *****************************************************************************/
+
+#define kIOPMSystemSleepPolicySignature     0x54504c53
+#define kIOPMSystemSleepPolicyVersion       2
+
+/*!
+ * @defined kIOPMSystemSleepTypeKey
+ * @abstract Indicates the type of system sleep.
+ * @discussion An OSNumber property of root domain that describes the type
+ * of system sleep. This property is set after notifying priority sleep/wake
+ * clients, but before informing interested drivers and shutting down power
+ * plane drivers.
+ */
+#define kIOPMSystemSleepTypeKey             "IOPMSystemSleepType"
+
+struct IOPMSystemSleepPolicyVariables
+{
+    uint32_t    signature;                  // kIOPMSystemSleepPolicySignature
+    uint32_t    version;                    // kIOPMSystemSleepPolicyVersion
+
+    uint64_t    currentCapability;          // current system capability bits
+    uint64_t    highestCapability;          // highest system capability bits
+
+    uint64_t    sleepFactors;               // sleep factor bits
+    uint32_t    sleepReason;                // kIOPMSleepReason*
+    uint32_t    sleepPhase;                 // identify the sleep phase
+    uint32_t    hibernateMode;              // current hibernate mode
+
+    uint32_t    standbyDelay;               // standby delay in seconds
+    uint32_t    poweroffDelay;              // auto-poweroff delay in seconds
+    uint32_t    scheduledAlarms;            // bitmask of scheduled alarm types
+    uint32_t    poweroffTimer;              // auto-poweroff timer in seconds
+
+    uint32_t    reserved[49];               // pad sizeof 256 bytes
+};
+
+enum {
+    kIOPMAlarmBitDebugWake                  = 0x01,
+    kIOPMAlarmBitCalendarWake               = 0x02,
+    kIOPMAlarmBitMaintenanceWake            = 0x04,
+    kIOPMAlarmBitSleepServiceWake           = 0x08
+};
+
+enum {
+    kIOPMSleepPhase0 = 0,
+    kIOPMSleepPhase1,
+    kIOPMSleepPhase2
+};
+
+// Sleep Factor Mask / Bits
+enum {
+    kIOPMSleepFactorSleepTimerWake          = 0x00000001ULL,
+    kIOPMSleepFactorLidOpen                 = 0x00000002ULL,
+    kIOPMSleepFactorACPower                 = 0x00000004ULL,
+    kIOPMSleepFactorBatteryLow              = 0x00000008ULL,
+    kIOPMSleepFactorStandbyNoDelay          = 0x00000010ULL,
+    kIOPMSleepFactorStandbyForced           = 0x00000020ULL,
+    kIOPMSleepFactorStandbyDisabled         = 0x00000040ULL,
+    kIOPMSleepFactorUSBExternalDevice       = 0x00000080ULL,
+    kIOPMSleepFactorBluetoothHIDDevice      = 0x00000100ULL,
+    kIOPMSleepFactorExternalMediaMounted    = 0x00000200ULL,
+    kIOPMSleepFactorThunderboltDevice       = 0x00000400ULL,
+    kIOPMSleepFactorRTCAlarmScheduled       = 0x00000800ULL,
+    kIOPMSleepFactorMagicPacketWakeEnabled  = 0x00001000ULL,
+    kIOPMSleepFactorHibernateForced         = 0x00010000ULL,
+    kIOPMSleepFactorAutoPowerOffDisabled    = 0x00020000ULL,
+    kIOPMSleepFactorAutoPowerOffForced      = 0x00040000ULL,
+    kIOPMSleepFactorExternalDisplay         = 0x00080000ULL
+};
+
+// System Sleep Types
+enum {
+    kIOPMSleepTypeInvalid                   = 0,
+    kIOPMSleepTypeAbortedSleep              = 1,
+    kIOPMSleepTypeNormalSleep               = 2,
+    kIOPMSleepTypeSafeSleep                 = 3,
+    kIOPMSleepTypeHibernate                 = 4,
+    kIOPMSleepTypeStandby                   = 5,
+    kIOPMSleepTypePowerOff                  = 6,
+    kIOPMSleepTypeDeepIdle                  = 7,
+    kIOPMSleepTypeLast                      = 8
+};
+
+// System Sleep Flags
+enum {
+    kIOPMSleepFlagDisableHibernateAbort     = 0x00000001,
+    kIOPMSleepFlagDisableUSBWakeEvents      = 0x00000002,
+    kIOPMSleepFlagDisableBatlowAssertion    = 0x00000004
+};
+
+// System Wake Events
+enum {
+    kIOPMWakeEventLidOpen                   = 0x00000001,
+    kIOPMWakeEventLidClose                  = 0x00000002,
+    kIOPMWakeEventACAttach                  = 0x00000004,
+    kIOPMWakeEventACDetach                  = 0x00000008,
+    kIOPMWakeEventCDInsert                  = 0x00000010,
+    kIOPMWakeEventCDEject                   = 0x00000020,
+    kIOPMWakeEventHPDAttach                 = 0x00000040,
+    kIOPMWakeEventHPDDetach                 = 0x00000080,
+    kIOPMWakeEventPowerButton               = 0x00000100,
+    kIOPMWakeEventG3PowerOn                 = 0x00000200,
+    kIOPMWakeEventUserPME                   = 0x00000400,
+    kIOPMWakeEventSleepTimer                = 0x00000800,
+    kIOPMWakeEventBatteryLow                = 0x00001000,
+    kIOPMWakeEventDarkPME                   = 0x00002000
+};
+
+/*!
+ * @defined kIOPMSystemSleepParametersKey
+ * @abstract Sleep parameters describing the upcoming sleep
+ * @discussion Root domain updates this OSData property before system sleep
+ * to pass sleep parameters to the platform driver.  Some of the parameters
+ * are based on the chosen entry in the system sleep policy table.
+ */
+#define kIOPMSystemSleepParametersKey       "IOPMSystemSleepParameters"
+#define kIOPMSystemSleepParametersVersion   2
+
+struct IOPMSystemSleepParameters
+{
+    uint16_t    version;
+    uint16_t    reserved1;
+    uint32_t    sleepType;
+    uint32_t    sleepFlags;
+    uint32_t    ecWakeEvents;
+    uint32_t    ecWakeTimer;
+    uint32_t    ecPoweroffTimer;
+    uint32_t    reserved2[10];
+} __attribute__((packed));
+
+#if defined(KERNEL) && defined(__cplusplus)
+
+/*!
+ * @defined kIOPMInstallSystemSleepPolicyHandlerKey
+ * @abstract Name of the platform function to install a sleep policy handler.
+ * @discussion Pass to IOPMrootDomain::callPlatformFunction(), with a pointer
+ * to the C-function handler at param1, and an optional target at param2, to
+ * register a sleep policy handler. Only a single sleep policy handler can
+ * be installed.
+ */
+#define kIOPMInstallSystemSleepPolicyHandlerKey        \
+        "IOPMInstallSystemSleepPolicyHandler"
+
+typedef IOReturn (*IOPMSystemSleepPolicyHandler)(
+        void * target,
+        const IOPMSystemSleepPolicyVariables * vars,
+        IOPMSystemSleepParameters * params );
+
+#endif /* KERNEL */
+
+#endif /* ! _IOKIT_IOPMPRIVATE_H */