/*
- * Copyright (c) 1998-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2008 Apple 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@
*/
+#include <libkern/c++/OSKext.h>
+#include <libkern/c++/OSMetaClass.h>
+#include <libkern/OSAtomic.h>
+#include <libkern/OSDebug.h>
#include <IOKit/IOWorkLoop.h>
#include <IOKit/IOCommandGate.h>
-#include <IOKit/IOTimerEventSource.h>
#include <IOKit/IOPlatformExpert.h>
#include <IOKit/IOKitDebug.h>
#include <IOKit/IOTimeStamp.h>
+#include <IOKit/pwr_mgt/IOPMlog.h>
#include <IOKit/pwr_mgt/RootDomain.h>
#include <IOKit/pwr_mgt/IOPMPrivate.h>
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/IOMessage.h>
+#include <IOKit/IOReturn.h>
#include "RootDomainUserClient.h"
#include "IOKit/pwr_mgt/IOPowerConnection.h"
#include "IOPMPowerStateQueue.h"
#include <IOKit/IOCatalogue.h>
+#if HIBERNATION
#include <IOKit/IOHibernatePrivate.h>
-
-#ifdef __ppc__
-#include <ppc/pms.h>
#endif
+#include <sys/syslog.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+#include "IOServicePrivate.h" // _IOServiceInterestNotifier
+#include "IOServicePMPrivate.h"
+
+__BEGIN_DECLS
+#include <mach/shared_region.h>
+__END_DECLS
+
+#if defined(__i386__) || defined(__x86_64__)
+__BEGIN_DECLS
+#include "IOPMrootDomainInternal.h"
+__END_DECLS
+#endif
+
+#define kIOPMrootDomainClass "IOPMrootDomain"
+#define LOG_PREFIX "PMRD: "
+
+#define MSG(x...) \
+ do { kprintf(LOG_PREFIX x); IOLog(x); } while (false)
+
+#define LOG(x...) \
+ do { kprintf(LOG_PREFIX x); } while (false)
+
+#define DLOG(x...) do { \
+ if (kIOLogPMRootDomain & gIOKitDebug) \
+ kprintf(LOG_PREFIX x); } while (false)
+
+#define _LOG(x...)
+
+#define CHECK_THREAD_CONTEXT
+#ifdef CHECK_THREAD_CONTEXT
+static IOWorkLoop * gIOPMWorkLoop = 0;
+#define ASSERT_GATED() \
+do { \
+ if (gIOPMWorkLoop && gIOPMWorkLoop->inGate() != true) { \
+ panic("RootDomain: not inside PM gate"); \
+ } \
+} while(false)
+#else
+#define ASSERT_GATED()
+#endif /* CHECK_THREAD_CONTEXT */
+
+#define CAP_LOSS(c) \
+ (((_pendingCapability & (c)) == 0) && \
+ ((_currentCapability & (c)) != 0))
+
+#define CAP_GAIN(c) \
+ (((_currentCapability & (c)) == 0) && \
+ ((_pendingCapability & (c)) != 0))
+
+#define CAP_CHANGE(c) \
+ (((_currentCapability ^ _pendingCapability) & (c)) != 0)
+
+#define CAP_CURRENT(c) \
+ ((_currentCapability & (c)) != 0)
+
+#define CAP_HIGHEST(c) \
+ ((_highestCapability & (c)) != 0)
+
+#define DARK_TO_FULL_EVALUATE_CLAMSHELL 0
+
+// Event types for IOPMPowerStateQueue::submitPowerEvent()
+enum {
+ kPowerEventFeatureChanged = 1, // 1
+ kPowerEventReceivedPowerNotification, // 2
+ kPowerEventSystemBootCompleted, // 3
+ kPowerEventSystemShutdown, // 4
+ kPowerEventUserDisabledSleep, // 5
+ kPowerEventRegisterSystemCapabilityClient, // 6
+ kPowerEventRegisterKernelCapabilityClient, // 7
+ kPowerEventPolicyStimulus, // 8
+ kPowerEventAssertionCreate, // 9
+ kPowerEventAssertionRelease, // 10
+ kPowerEventAssertionSetLevel, // 11
+ kPowerEventQueueSleepWakeUUID, // 12
+ kPowerEventPublishSleepWakeUUID // 13
+};
+
+// For evaluatePolicy()
+// List of stimuli that affects the root domain policy.
+enum {
+ kStimulusDisplayWranglerSleep, // 0
+ kStimulusDisplayWranglerWake, // 1
+ kStimulusAggressivenessChanged, // 2
+ kStimulusDemandSystemSleep, // 3
+ kStimulusAllowSystemSleepChanged, // 4
+ kStimulusDarkWakeActivityTickle, // 5
+ kStimulusDarkWakeEntry, // 6
+ kStimulusDarkWakeReentry, // 7
+ kStimulusDarkWakeEvaluate // 8
+};
+
+extern "C" {
+IOReturn OSKextSystemSleepOrWake( UInt32 );
+}
+
+static void idleSleepTimerExpired( thread_call_param_t, thread_call_param_t );
+static void notifySystemShutdown( IOService * root, unsigned long event );
+static void handleAggressivesFunction( thread_call_param_t, thread_call_param_t );
+static void pmEventTimeStamp(uint64_t *recordTS);
+
+// "IOPMSetSleepSupported" callPlatformFunction name
+static const OSSymbol *sleepSupportedPEFunction = NULL;
+static const OSSymbol *sleepMessagePEFunction = NULL;
+
+#define kIOSleepSupportedKey "IOSleepSupported"
+#define kIOPMSystemCapabilitiesKey "System Capabilities"
+
+#define kRD_AllPowerSources (kIOPMSupportedOnAC \
+ | kIOPMSupportedOnBatt \
+ | kIOPMSupportedOnUPS)
+
+enum
+{
+ // not idle around autowake time, secs
+ kAutoWakePreWindow = 45,
+ kAutoWakePostWindow = 15
+};
-extern "C" void kprintf(const char *, ...);
+#define kLocalEvalClamshellCommand (1 << 15)
-extern const IORegistryPlane * gIOPowerPlane;
+enum {
+ OFF_STATE = 0,
+ RESTART_STATE = 1,
+ SLEEP_STATE = 2,
+ ON_STATE = 3,
+ NUM_POWER_STATES
+};
+
+#define ON_POWER kIOPMPowerOn
+#define RESTART_POWER kIOPMRestart
+#define SLEEP_POWER kIOPMAuxPowerOn
+
+static IOPMPowerState ourPowerStates[NUM_POWER_STATES] =
+{
+ {1, 0, 0, 0, 0,0,0,0,0,0,0,0},
+ {1, kIOPMRestartCapability, kIOPMRestart, RESTART_POWER, 0,0,0,0,0,0,0,0},
+ {1, kIOPMSleepCapability, kIOPMSleep, SLEEP_POWER, 0,0,0,0,0,0,0,0},
+ {1, kIOPMPowerOn, kIOPMPowerOn, ON_POWER, 0,0,0,0,0,0,0,0}
+};
+
+#define kIOPMRootDomainWakeTypeMaintenance "Maintenance"
+#define kIOPMRootDomainWakeTypeSleepTimer "SleepTimer"
+#define kIOPMrootDomainWakeTypeLowBattery "LowBattery"
+#define kIOPMRootDomainWakeTypeUser "User"
+#define kIOPMRootDomainWakeTypeAlarm "Alarm"
+#define kIOPMRootDomainWakeTypeNetwork "Network"
+
+// Special interest that entitles the interested client from receiving
+// all system messages. Only used by powerd.
+//
+#define kIOPMSystemCapabilityInterest "IOPMSystemCapabilityInterest"
-IOReturn broadcast_aggressiveness ( OSObject *, void *, void *, void *, void * );
-static void sleepTimerExpired(thread_call_param_t);
-static void wakeupClamshellTimerExpired ( thread_call_param_t us);
+/*
+ * Aggressiveness
+ */
+#define AGGRESSIVES_LOCK() IOLockLock(featuresDictLock)
+#define AGGRESSIVES_UNLOCK() IOLockUnlock(featuresDictLock)
+
+#define kAggressivesMinValue 1
+
+enum {
+ kAggressivesStateBusy = 0x01,
+ kAggressivesStateQuickSpindown = 0x02
+};
+struct AggressivesRecord {
+ uint32_t flags;
+ uint32_t type;
+ uint32_t value;
+};
-#define number_of_power_states 5
-#define OFF_STATE 0
-#define RESTART_STATE 1
-#define SLEEP_STATE 2
-#define DOZE_STATE 3
-#define ON_STATE 4
+struct AggressivesRequest {
+ queue_chain_t chain;
+ uint32_t options;
+ uint32_t dataType;
+ union {
+ IOService * service;
+ AggressivesRecord record;
+ } data;
+};
-#define ON_POWER kIOPMPowerOn
-#define RESTART_POWER kIOPMRestart
-#define SLEEP_POWER kIOPMAuxPowerOn
-#define DOZE_POWER kIOPMDoze
+enum {
+ kAggressivesRequestTypeService = 1,
+ kAggressivesRequestTypeRecord
+};
-static IOPMPowerState ourPowerStates[number_of_power_states] = {
- {1,0, 0, 0,0,0,0,0,0,0,0,0}, // state 0, off
- {1,kIOPMRestartCapability, kIOPMRestart, RESTART_POWER,0,0,0,0,0,0,0,0}, // state 1, restart
- {1,kIOPMSleepCapability, kIOPMSleep, SLEEP_POWER,0,0,0,0,0,0,0,0}, // state 2, sleep
- {1,kIOPMDoze, kIOPMDoze, DOZE_POWER,0,0,0,0,0,0,0,0}, // state 3, doze
- {1,kIOPMPowerOn, kIOPMPowerOn, ON_POWER,0,0,0,0,0,0,0,0}, // state 4, on
+enum {
+ kAggressivesOptionSynchronous = 0x00000001,
+ kAggressivesOptionQuickSpindownEnable = 0x00000100,
+ kAggressivesOptionQuickSpindownDisable = 0x00000200,
+ kAggressivesOptionQuickSpindownMask = 0x00000300
};
-// RESERVED IOPMrootDomain class variables
-#define diskSyncCalloutEntry _reserved->diskSyncCalloutEntry
-#define _settingController _reserved->_settingController
-#define _batteryLocationNotifier _reserved->_batteryLocationNotifier
-#define _displayWranglerNotifier _reserved->_displayWranglerNotifier
+enum {
+ kAggressivesRecordFlagModified = 0x00000001,
+ kAggressivesRecordFlagMinValue = 0x00000002
+};
+// gDarkWakeFlags
+enum {
+ kDarkWakeFlagHIDTickleEarly = 0x01, // hid tickle before gfx suppression
+ kDarkWakeFlagHIDTickleLate = 0x02, // hid tickle after gfx suppression
+ kDarkWakeFlagHIDTickleNone = 0x03, // hid tickle is not posted
+ kDarkWakeFlagHIDTickleMask = 0x03,
+ kDarkWakeFlagIgnoreDiskIOInDark = 0x04, // ignore disk idle in DW
+ kDarkWakeFlagIgnoreDiskIOAlways = 0x08, // always ignore disk idle
+ kDarkWakeFlagIgnoreDiskIOMask = 0x0C,
+ kDarkWakeFlagAlarmIsDark = 0x0100
+};
static IOPMrootDomain * gRootDomain;
+static IONotifier * gSysPowerDownNotifier = 0;
static UInt32 gSleepOrShutdownPending = 0;
+static UInt32 gWillShutdown = 0;
+static UInt32 gPagingOff = 0;
+static UInt32 gSleepWakeUUIDIsSet = false;
+static uint32_t gAggressivesState = 0;
+static uint32_t gDarkWakeFlags = kDarkWakeFlagHIDTickleNone;
+static bool gRAMDiskImageBoot = false;
+
+struct timeval gIOLastSleepTime;
+struct timeval gIOLastWakeTime;
+
+// Constants used as arguments to IOPMrootDomain::informCPUStateChange
+#define kCPUUnknownIndex 9999999
+enum {
+ kInformAC = 0,
+ kInformLid = 1,
+ kInformableCount = 2
+};
+
+const OSSymbol *gIOPMStatsApplicationResponseTimedOut;
+const OSSymbol *gIOPMStatsApplicationResponseCancel;
+const OSSymbol *gIOPMStatsApplicationResponseSlow;
+
+/*
+ * PMSettingHandle
+ * Opaque handle passed to clients of registerPMSettingController()
+ */
+class PMSettingHandle : public OSObject
+{
+ OSDeclareFinalStructors( PMSettingHandle )
+ friend class PMSettingObject;
+
+private:
+ PMSettingObject *pmso;
+ void free(void);
+};
+
+/*
+ * PMSettingObject
+ * Internal object to track each PM setting controller
+ */
+class PMSettingObject : public OSObject
+{
+ OSDeclareFinalStructors( PMSettingObject )
+ friend class IOPMrootDomain;
+
+private:
+ queue_head_t calloutQueue;
+ thread_t waitThread;
+ IOPMrootDomain *parent;
+ PMSettingHandle *pmsh;
+ IOPMSettingControllerCallback func;
+ OSObject *target;
+ uintptr_t refcon;
+ uint32_t *publishedFeatureID;
+ uint32_t settingCount;
+ bool disabled;
+
+ void free(void);
+
+public:
+ static PMSettingObject *pmSettingObject(
+ IOPMrootDomain *parent_arg,
+ IOPMSettingControllerCallback handler_arg,
+ OSObject *target_arg,
+ uintptr_t refcon_arg,
+ uint32_t supportedPowerSources,
+ const OSSymbol *settings[],
+ OSObject **handle_obj);
+
+ void dispatchPMSetting(const OSSymbol *type, OSObject *object);
+ void clientHandleFreed(void);
+};
+
+struct PMSettingCallEntry {
+ queue_chain_t link;
+ thread_t thread;
+};
+
+#define PMSETTING_LOCK() IOLockLock(settingsCtrlLock)
+#define PMSETTING_UNLOCK() IOLockUnlock(settingsCtrlLock)
+#define PMSETTING_WAIT(p) IOLockSleep(settingsCtrlLock, p, THREAD_UNINT)
+#define PMSETTING_WAKEUP(p) IOLockWakeup(settingsCtrlLock, p, true)
+
+//*********************************************************************************
+//*********************************************************************************
+//*********************************************************************************
+
+/* @class IOPMTimeline
+ * @astract Tracks & records PM activity.
+ * @discussion Intended for use only as a helper-class to IOPMrootDomain.
+ * Do not subclass or directly invoke iOPMTimeline
+ */
+class IOPMTimeline : public OSObject
+{
+ OSDeclareDefaultStructors( IOPMTimeline );
+
+public:
+ static IOPMTimeline* timeline(IOPMrootDomain *root_domain);
+
+ bool setProperties(OSDictionary *d);
+ OSDictionary *copyInfoDictionary(void);
+
+ IOReturn recordSystemPowerEvent( PMEventDetails *details );
+
+ IOReturn recordDetailedPowerEvent( PMEventDetails *details );
+
+ IOMemoryDescriptor *getPMTraceMemoryDescriptor();
+
+ uint32_t getNumEventsLoggedThisPeriod();
+ void setNumEventsLoggedThisPeriod(uint32_t newCount);
+ bool isSleepCycleInProgress();
+ void setSleepCycleInProgressFlag(bool flag);
+private:
+ bool init(void);
+ void free(void);
+
+ void setEventsTrackedCount(uint32_t newTracked);
+ void setEventsRecordingLevel(uint32_t eventsTrackedBits);
+ static uint32_t _atomicIndexIncrement(uint32_t *index, uint32_t limit);
+
+ enum {
+ kPMTimelineRecordTardyDrivers = 1 << 0,
+ kPMTmielineRecordSystemEvents = 1 << 1,
+ kPMTimelineRecordAllDrivers = 1 << 2,
+ kPMTimelineRecordOff = 0,
+ kPMTimelineRecordDefault = 3,
+ kPMTimelineRecordDebug = 7
+ };
+
+ // eventsRecordingLevel is a bitfield defining which PM driver events will get logged
+ // into the PM buffer.
+ uint32_t eventsRecordingLevel;
+
+ // pmTraceMemoryDescriptor represents the memory block that IOPMTimeLine records PM trace points into.
+ IOBufferMemoryDescriptor *pmTraceMemoryDescriptor;
+
+ // Pointer to starting address in pmTraceMemoryDescriptor
+ IOPMSystemEventRecord *traceBuffer;
+ IOPMTraceBufferHeader *hdr;
+
+ uint16_t systemState;
+
+ IOLock *logLock;
+ IOPMrootDomain *owner;
+
+ uint32_t numEventsLoggedThisPeriod;
+ bool sleepCycleInProgress;
+};
+
+OSDefineMetaClassAndStructors( IOPMTimeline, OSObject )
+
+/*
+ * PMTraceWorker
+ * Internal helper object for logging trace points to RTC
+ * IOPMrootDomain and only IOPMrootDomain should instantiate
+ * exactly one of these.
+ */
+
+typedef void (*IOPMTracePointHandler)(
+ void * target, uint32_t code, uint32_t data );
+
+class PMTraceWorker : public OSObject
+{
+ OSDeclareDefaultStructors(PMTraceWorker)
+public:
+ typedef enum { kPowerChangeStart, kPowerChangeCompleted } change_t;
+
+ static PMTraceWorker *tracer( IOPMrootDomain * );
+ void tracePCIPowerChange(change_t, IOService *, uint32_t, uint32_t);
+ void tracePoint(uint8_t phase);
+ void tracePoint(uint8_t phase, uint8_t data8);
+ void traceDetail(uint32_t detail);
+ void traceLoginWindowPhase(uint8_t phase);
+ int recordTopLevelPCIDevice(IOService *);
+ void RTC_TRACE(void);
+ virtual bool serialize(OSSerialize *s) const;
+
+ IOPMTracePointHandler tracePointHandler;
+ void * tracePointTarget;
+private:
+ IOPMrootDomain *owner;
+ IOLock *pciMappingLock;
+ OSArray *pciDeviceBitMappings;
+
+ uint8_t addedToRegistry;
+ uint8_t tracePhase;
+ uint8_t loginWindowPhase;
+ uint8_t traceData8;
+ uint32_t traceData32;
+};
+
+/*
+ * PMAssertionsTracker
+ * Tracks kernel and user space PM assertions
+ */
+class PMAssertionsTracker : public OSObject
+{
+ OSDeclareFinalStructors(PMAssertionsTracker)
+public:
+ static PMAssertionsTracker *pmAssertionsTracker( IOPMrootDomain * );
+
+ IOReturn createAssertion(IOPMDriverAssertionType, IOPMDriverAssertionLevel, IOService *, const char *, IOPMDriverAssertionID *);
+ IOReturn releaseAssertion(IOPMDriverAssertionID);
+ IOReturn setAssertionLevel(IOPMDriverAssertionID, IOPMDriverAssertionLevel);
+ IOReturn setUserAssertionLevels(IOPMDriverAssertionType);
+
+ OSArray *copyAssertionsArray(void);
+ IOPMDriverAssertionType getActivatedAssertions(void);
+ IOPMDriverAssertionLevel getAssertionLevel(IOPMDriverAssertionType);
+
+ IOReturn handleCreateAssertion(OSData *);
+ IOReturn handleReleaseAssertion(IOPMDriverAssertionID);
+ IOReturn handleSetAssertionLevel(IOPMDriverAssertionID, IOPMDriverAssertionLevel);
+ IOReturn handleSetUserAssertionLevels(void * arg0);
+ void publishProperties(void);
+
+private:
+ typedef struct {
+ IOPMDriverAssertionID id;
+ IOPMDriverAssertionType assertionBits;
+ uint64_t createdTime;
+ uint64_t modifiedTime;
+ const OSSymbol *ownerString;
+ IOService *ownerService;
+ IOPMDriverAssertionLevel level;
+ } PMAssertStruct;
+
+ uint32_t tabulateProducerCount;
+ uint32_t tabulateConsumerCount;
+
+ PMAssertStruct *detailsForID(IOPMDriverAssertionID, int *);
+ void tabulate(void);
+
+ IOPMrootDomain *owner;
+ OSArray *assertionsArray;
+ IOLock *assertionsArrayLock;
+ IOPMDriverAssertionID issuingUniqueID __attribute__((aligned(8))); /* aligned for atomic access */
+ IOPMDriverAssertionType assertionsKernel;
+ IOPMDriverAssertionType assertionsUser;
+ IOPMDriverAssertionType assertionsCombined;
+};
+
+OSDefineMetaClassAndFinalStructors(PMAssertionsTracker, OSObject);
+
+/*
+ * PMHaltWorker
+ * Internal helper object for Shutdown/Restart notifications.
+ */
+#define kPMHaltMaxWorkers 8
+#define kPMHaltTimeoutMS 100
+
+class PMHaltWorker : public OSObject
+{
+ OSDeclareFinalStructors( PMHaltWorker )
+
+public:
+ IOService * service; // service being worked on
+ AbsoluteTime startTime; // time when work started
+ int depth; // work on nubs at this PM-tree depth
+ int visits; // number of nodes visited (debug)
+ IOLock * lock;
+ bool timeout; // service took too long
+
+ static PMHaltWorker * worker( void );
+ static void main( void * arg, wait_result_t waitResult );
+ static void work( PMHaltWorker * me );
+ static void checkTimeout( PMHaltWorker * me, AbsoluteTime * now );
+ virtual void free( void );
+};
+
+OSDefineMetaClassAndFinalStructors( PMHaltWorker, OSObject )
#define super IOService
-OSDefineMetaClassAndStructors(IOPMrootDomain,IOService)
+OSDefineMetaClassAndFinalStructors(IOPMrootDomain, IOService)
+
+static void IOPMRootDomainWillShutdown(void)
+{
+ if (OSCompareAndSwap(0, 1, &gWillShutdown))
+ {
+ OSKext::willShutdown();
+ for (int i = 0; i < 100; i++)
+ {
+ if (OSCompareAndSwap(0, 1, &gSleepOrShutdownPending)) break;
+ IOSleep( 100 );
+ }
+ }
+}
extern "C"
{
return gRootDomain->shutdownSystem();
}
- void IOSystemShutdownNotification ( void )
+ void IOSystemShutdownNotification(void)
{
- IOCatalogue::disableExternalLinker();
- for ( int i = 0; i < 100; i++ )
- {
- if ( OSCompareAndSwap( 0, 1, &gSleepOrShutdownPending ) ) break;
- IOSleep( 100 );
- }
+ IOPMRootDomainWillShutdown();
+ if (OSCompareAndSwap(0, 1, &gPagingOff))
+ {
+#if !CONFIG_EMBEDDED
+ gRootDomain->handlePlatformHaltRestart(kPEPagingOff);
+#endif
+ }
}
int sync_internal(void);
}
/*
-A device is always in the highest power state which satisfies its driver, its policy-maker, and any power domain
-children it has, but within the constraint of the power state provided by its parent. The driver expresses its desire by
-calling changePowerStateTo(), the policy-maker expresses its desire by calling changePowerStateToPriv(), and the children
-express their desires by calling requestPowerDomainState().
-
-The Root Power Domain owns the policy for idle and demand sleep and doze for the system. It is a power-managed IOService just
-like the others in the system. It implements several power states which correspond to what we see as Sleep, Doze, etc.
-
-The sleep/doze policy is as follows:
-Sleep and Doze are prevented if the case is open so that nobody will think the machine is off and plug/unplug cards.
-Sleep and Doze are prevented if the sleep timeout slider in the preferences panel is at zero.
-The system cannot Sleep, but can Doze if some object in the tree is in a power state marked kIOPMPreventSystemSleep.
-
-These three conditions are enforced using the "driver clamp" by calling changePowerStateTo(). For example, if the case is
-opened, changePowerStateTo(ON_STATE) is called to hold the system on regardless of the desires of the children of the root or
-the state of the other clamp.
-
-Demand Sleep/Doze is initiated by pressing the front panel power button, closing the clamshell, or selecting the menu item.
-In this case the root's parent actually initiates the power state change so that the root has no choice and does not give
-applications the opportunity to veto the change.
-
-Idle Sleep/Doze occurs if no objects in the tree are in a state marked kIOPMPreventIdleSleep. When this is true, the root's
-children are not holding the root on, so it sets the "policy-maker clamp" by calling changePowerStateToPriv(ON_STATE)
-to hold itself on until the sleep timer expires. This timer is set for the difference between the sleep timeout slider and
-the larger of the display dim timeout slider and the disk spindown timeout slider in the Preferences panel. For example, if
-the system is set to sleep after thirty idle minutes, and the display and disk are set to sleep after five idle minutes,
-when there is no longer an object in the tree holding the system out of Idle Sleep (via kIOPMPreventIdleSleep), the root
-sets its timer for 25 minutes (30 - 5). When the timer expires, it releases its clamp and now nothing is holding it awake,
-so it falls asleep.
-
-Demand sleep is prevented when the system is booting. When preferences are transmitted by the loginwindow at the end of
-boot, a flag is cleared, and this allows subsequent Demand Sleep.
-
-The system will not Sleep, but will Doze if some object calls setSleepSupported(kPCICantSleep) during a power change to the sleep state (this can be done by the PCI Aux Power Supply drivers, Slots99, MacRISC299, etc.). This is not enforced with
-a clamp, but sets a flag which is noticed before actually sleeping the kernel. If the flag is set, the root steps up
-one power state from Sleep to Doze, and any objects in the tree for which this is relevent will act appropriately (USB and
-ADB will turn on again so that they can wake the system out of Doze (keyboard/mouse activity will cause the Display Wrangler
-to be tickled)).
+A device is always in the highest power state which satisfies its driver,
+its policy-maker, and any power children it has, but within the constraint
+of the power state provided by its parent. The driver expresses its desire by
+calling changePowerStateTo(), the policy-maker expresses its desire by calling
+changePowerStateToPriv(), and the children express their desires by calling
+requestPowerDomainState().
+
+The Root Power Domain owns the policy for idle and demand sleep for the system.
+It is a power-managed IOService just like the others in the system.
+It implements several power states which map to what we see as Sleep and On.
+
+The sleep policy is as follows:
+1. Sleep is prevented if the case is open so that nobody will think the machine
+ is off and plug/unplug cards.
+2. Sleep is prevented if the sleep timeout slider in the prefs panel is zero.
+3. System cannot Sleep if some object in the tree is in a power state marked
+ kIOPMPreventSystemSleep.
+
+These three conditions are enforced using the "driver clamp" by calling
+changePowerStateTo(). For example, if the case is opened,
+changePowerStateTo(ON_STATE) is called to hold the system on regardless
+of the desires of the children of the root or the state of the other clamp.
+
+Demand Sleep is initiated by pressing the front panel power button, closing
+the clamshell, or selecting the menu item. In this case the root's parent
+actually initiates the power state change so that the root domain has no
+choice and does not give applications the opportunity to veto the change.
+
+Idle Sleep occurs if no objects in the tree are in a state marked
+kIOPMPreventIdleSleep. When this is true, the root's children are not holding
+the root on, so it sets the "policy-maker clamp" by calling
+changePowerStateToPriv(ON_STATE) to hold itself on until the sleep timer expires.
+This timer is set for the difference between the sleep timeout slider and the
+display dim timeout slider. When the timer expires, it releases its clamp and
+now nothing is holding it awake, so it falls asleep.
+
+Demand sleep is prevented when the system is booting. When preferences are
+transmitted by the loginwindow at the end of boot, a flag is cleared,
+and this allows subsequent Demand Sleep.
*/
-// **********************************************************************************
+//******************************************************************************
IOPMrootDomain * IOPMrootDomain::construct( void )
{
- IOPMrootDomain *root;
+ IOPMrootDomain *root;
root = new IOPMrootDomain;
if( root)
return( root );
}
-// **********************************************************************************
+//******************************************************************************
-static void disk_sync_callout(thread_call_param_t p0, thread_call_param_t p1)
+static void disk_sync_callout( thread_call_param_t p0, thread_call_param_t p1 )
{
- IOService *rootDomain = (IOService *) p0;
- unsigned long pmRef = (unsigned long) p1;
+ IOService * rootDomain = (IOService *) p0;
+ uint32_t notifyRef = (uint32_t)(uintptr_t) p1;
+ uint32_t powerState = rootDomain->getPowerState();
+
+ DLOG("disk_sync_callout ps=%u\n", powerState);
+
+ if (ON_STATE == powerState)
+ {
+#if HIBERNATION
+ IOHibernateSystemSleep();
+#endif
+ sync_internal();
+ }
+#if HIBERNATION
+ else
+ {
+ IOHibernateSystemPostWake();
+ }
+#endif
- IOHibernateSystemSleep();
- sync_internal();
- rootDomain->allowPowerChange(pmRef);
+ rootDomain->allowPowerChange(notifyRef);
+ DLOG("disk_sync_callout finish\n");
}
-// **********************************************************************************
-// start
-//
-// We don't do much here. The real initialization occurs when the platform
-// expert informs us we are the root.
-// **********************************************************************************
+//******************************************************************************
+
+static UInt32 computeDeltaTimeMS( const AbsoluteTime * startTime )
+{
+ AbsoluteTime endTime;
+ UInt64 nano = 0;
+
+ clock_get_uptime(&endTime);
+ if (CMP_ABSOLUTETIME(&endTime, startTime) > 0)
+ {
+ SUB_ABSOLUTETIME(&endTime, startTime);
+ absolutetime_to_nanoseconds(endTime, &nano);
+ }
+
+ return (UInt32)(nano / 1000000ULL);
+}
+
+//******************************************************************************
+
+static int
+sysctl_sleepwaketime SYSCTL_HANDLER_ARGS
+{
+ struct timeval *swt = (struct timeval *)arg1;
+ struct proc *p = req->p;
+
+ if (p == kernproc) {
+ return sysctl_io_opaque(req, swt, sizeof(*swt), NULL);
+ } else if(proc_is64bit(p)) {
+ struct user64_timeval t;
+ t.tv_sec = swt->tv_sec;
+ t.tv_usec = swt->tv_usec;
+ return sysctl_io_opaque(req, &t, sizeof(t), NULL);
+ } else {
+ struct user32_timeval t;
+ t.tv_sec = swt->tv_sec;
+ t.tv_usec = swt->tv_usec;
+ return sysctl_io_opaque(req, &t, sizeof(t), NULL);
+ }
+}
+
+static SYSCTL_PROC(_kern, OID_AUTO, sleeptime,
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &gIOLastSleepTime, 0, sysctl_sleepwaketime, "S,timeval", "");
+
+static SYSCTL_PROC(_kern, OID_AUTO, waketime,
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &gIOLastWakeTime, 0, sysctl_sleepwaketime, "S,timeval", "");
+
+
+static int
+sysctl_willshutdown
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, gWillShutdown, sizeof(int), &new_value, &changed);
+ if (changed) {
+ if (!gWillShutdown && (new_value == 1)) {
+ IOPMRootDomainWillShutdown();
+ } else
+ error = EINVAL;
+ }
+ return(error);
+}
+
+static SYSCTL_PROC(_kern, OID_AUTO, willshutdown,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_willshutdown, "I", "");
+
+#if !CONFIG_EMBEDDED
+
+static int
+sysctl_progressmeterenable
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int error;
+ int new_value, changed;
+
+ error = sysctl_io_number(req, vc_progress_meter_enable, sizeof(int), &new_value, &changed);
+ if (changed)
+ vc_enable_progressmeter(new_value);
+
+ return (error);
+}
-bool IOPMrootDomain::start ( IOService * nub )
+static int
+sysctl_progressmeter
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
- OSDictionary *tmpDict;
+ int error;
+ int new_value, changed;
+
+ error = sysctl_io_number(req, vc_progress_meter_value, sizeof(int), &new_value, &changed);
+
+ if (changed)
+ vc_set_progressmeter(new_value);
+
+ return (error);
+}
+
+static SYSCTL_PROC(_kern, OID_AUTO, progressmeterenable,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_progressmeterenable, "I", "");
+
+static SYSCTL_PROC(_kern, OID_AUTO, progressmeter,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_progressmeter, "I", "");
+
+#endif
+
+static SYSCTL_INT(_debug, OID_AUTO, darkwake, CTLFLAG_RW, &gDarkWakeFlags, 0, "");
+
+static const OSSymbol * gIOPMSettingAutoWakeSecondsKey;
+static const OSSymbol * gIOPMSettingDebugWakeRelativeKey;
+static const OSSymbol * gIOPMSettingMaintenanceWakeCalendarKey;
+
+//******************************************************************************
+// start
+//
+//******************************************************************************
- pmPowerStateQueue = 0;
+#define kRootDomainSettingsCount 16
- _reserved = (ExpansionData *)IOMalloc(sizeof(ExpansionData));
- if(!_reserved) return false;
+bool IOPMrootDomain::start( IOService * nub )
+{
+ OSIterator *psIterator;
+ OSDictionary *tmpDict;
+ IORootParent * patriarch;
super::start(nub);
gRootDomain = this;
+ gIOPMSettingAutoWakeSecondsKey = OSSymbol::withCString(kIOPMSettingAutoWakeSecondsKey);
+ gIOPMSettingDebugWakeRelativeKey = OSSymbol::withCString(kIOPMSettingDebugWakeRelativeKey);
+ gIOPMSettingMaintenanceWakeCalendarKey =
+ OSSymbol::withCString(kIOPMSettingMaintenanceWakeCalendarKey);
- PMinit();
- setProperty("IOSleepSupported","");
+ gIOPMStatsApplicationResponseTimedOut = OSSymbol::withCString(kIOPMStatsResponseTimedOut);
+ gIOPMStatsApplicationResponseCancel = OSSymbol::withCString(kIOPMStatsResponseCancel);
+ gIOPMStatsApplicationResponseSlow = OSSymbol::withCString(kIOPMStatsResponseSlow);
+
+ sleepSupportedPEFunction = OSSymbol::withCString("IOPMSetSleepSupported");
+ sleepMessagePEFunction = OSSymbol::withCString("IOPMSystemSleepMessage");
+
+ const OSSymbol *settingsArr[kRootDomainSettingsCount] =
+ {
+ OSSymbol::withCString(kIOPMSettingSleepOnPowerButtonKey),
+ gIOPMSettingAutoWakeSecondsKey,
+ OSSymbol::withCString(kIOPMSettingAutoPowerSecondsKey),
+ OSSymbol::withCString(kIOPMSettingAutoWakeCalendarKey),
+ OSSymbol::withCString(kIOPMSettingAutoPowerCalendarKey),
+ gIOPMSettingDebugWakeRelativeKey,
+ OSSymbol::withCString(kIOPMSettingDebugPowerRelativeKey),
+ OSSymbol::withCString(kIOPMSettingWakeOnRingKey),
+ OSSymbol::withCString(kIOPMSettingRestartOnPowerLossKey),
+ OSSymbol::withCString(kIOPMSettingWakeOnClamshellKey),
+ OSSymbol::withCString(kIOPMSettingWakeOnACChangeKey),
+ OSSymbol::withCString(kIOPMSettingTimeZoneOffsetKey),
+ OSSymbol::withCString(kIOPMSettingDisplaySleepUsesDimKey),
+ OSSymbol::withCString(kIOPMSettingMobileMotionModuleKey),
+ OSSymbol::withCString(kIOPMSettingGraphicsSwitchKey),
+ OSSymbol::withCString(kIOPMStateConsoleShutdown)
+ };
+
+ PE_parse_boot_argn("darkwake", &gDarkWakeFlags, sizeof(gDarkWakeFlags));
+
+ IORegistryEntry * chosenEntry = IORegistryEntry::fromPath("/chosen", gIODTPlane);
+ if (chosenEntry)
+ {
+ if (chosenEntry->getProperty("boot-ramdmg-size") &&
+ chosenEntry->getProperty("boot-ramdmg-extents"))
+ {
+ gRAMDiskImageBoot = true;
+ }
+ chosenEntry->release();
+ }
+
+ queue_init(&aggressivesQueue);
+ aggressivesThreadCall = thread_call_allocate(handleAggressivesFunction, this);
+ aggressivesData = OSData::withCapacity(
+ sizeof(AggressivesRecord) * (kPMLastAggressivenessType + 4));
+
+ featuresDictLock = IOLockAlloc();
+ settingsCtrlLock = IOLockAlloc();
+ setPMRootDomain(this);
+
+ extraSleepTimer = thread_call_allocate(
+ idleSleepTimerExpired,
+ (thread_call_param_t) this);
- allowSleep = true;
- sleepIsSupported = true;
+ diskSyncCalloutEntry = thread_call_allocate(
+ &disk_sync_callout,
+ (thread_call_param_t) this);
+
+ setProperty(kIOSleepSupportedKey, true);
+
+ bzero(&pmStats, sizeof(pmStats));
+
+ pmTracer = PMTraceWorker::tracer(this);
+
+ pmAssertions = PMAssertionsTracker::pmAssertionsTracker(this);
+
+ userDisabledAllSleep = false;
systemBooting = true;
- ignoringClamshell = true;
sleepSlider = 0;
- idleSleepPending = false;
- canSleep = true;
+ idleSleepTimerPending = false;
wrangler = NULL;
- sleepASAP = false;
- _settingController = NULL;
- ignoringClamshellDuringWakeup = false;
-
+ clamshellClosed = false;
+ clamshellExists = false;
+ clamshellDisabled = true;
+ acAdaptorConnected = true;
+
+ // Set the default system capabilities at boot.
+ _currentCapability = kIOPMSystemCapabilityCPU |
+ kIOPMSystemCapabilityGraphics |
+ kIOPMSystemCapabilityAudio |
+ kIOPMSystemCapabilityNetwork;
+
+ _pendingCapability = _currentCapability;
+ _desiredCapability = _currentCapability;
+ _highestCapability = _currentCapability;
+ setProperty(kIOPMSystemCapabilitiesKey, _currentCapability, 64);
+
+ queuedSleepWakeUUIDString = NULL;
+ pmStatsAppResponses = OSArray::withCapacity(5);
+ _statsNameKey = OSSymbol::withCString(kIOPMStatsNameKey);
+ _statsPIDKey = OSSymbol::withCString(kIOPMStatsPIDKey);
+ _statsTimeMSKey = OSSymbol::withCString(kIOPMStatsTimeMSKey);
+ _statsResponseTypeKey = OSSymbol::withCString(kIOPMStatsApplicationResponseTypeKey);
+ _statsMessageTypeKey = OSSymbol::withCString(kIOPMStatsMessageTypeKey);
+
+ idxPMCPUClamshell = kCPUUnknownIndex;
+ idxPMCPULimitedPower = kCPUUnknownIndex;
+
tmpDict = OSDictionary::withCapacity(1);
setProperty(kRootDomainSupportedFeatures, tmpDict);
tmpDict->release();
- pm_vars->PMworkloop = IOWorkLoop::workLoop();
- pmPowerStateQueue = IOPMPowerStateQueue::PMPowerStateQueue(this);
- pm_vars->PMworkloop->addEventSource(pmPowerStateQueue);
-
- featuresDictLock = IOLockAlloc();
-
- extraSleepTimer = thread_call_allocate((thread_call_func_t)sleepTimerExpired, (thread_call_param_t) this);
- clamshellWakeupIgnore = thread_call_allocate((thread_call_func_t)wakeupClamshellTimerExpired, (thread_call_param_t) this);
- diskSyncCalloutEntry = thread_call_allocate(&disk_sync_callout, (thread_call_param_t) this);
+ settingsCallbacks = OSDictionary::withCapacity(1);
+
+ // Create a list of the valid PM settings that we'll relay to
+ // interested clients in setProperties() => setPMSetting()
+ allowedPMSettings = OSArray::withObjects(
+ (const OSObject **)settingsArr,
+ kRootDomainSettingsCount,
+ 0);
+
+ fPMSettingsDict = OSDictionary::withCapacity(5);
+
+ PMinit(); // creates gIOPMWorkLoop
+
+ // Create IOPMPowerStateQueue used to queue external power
+ // events, and to handle those events on the PM work loop.
+ pmPowerStateQueue = IOPMPowerStateQueue::PMPowerStateQueue(
+ this, OSMemberFunctionCast(IOEventSource::Action, this,
+ &IOPMrootDomain::dispatchPowerEvent));
+ getPMworkloop()->addEventSource(pmPowerStateQueue);
+#ifdef CHECK_THREAD_CONTEXT
+ gIOPMWorkLoop = getPMworkloop();
+#endif
- // create our parent
+ // create our power parent
patriarch = new IORootParent;
patriarch->init();
patriarch->attach(this);
patriarch->start(this);
- patriarch->youAreRoot();
- patriarch->wakeSystem();
patriarch->addPowerChild(this);
-
- registerPowerDriver(this,ourPowerStates,number_of_power_states);
- setPMRootDomain(this);
- // set a clamp until we sleep
+ registerPowerDriver(this, ourPowerStates, NUM_POWER_STATES);
changePowerStateToPriv(ON_STATE);
+ if (gIOKitDebug & (kIOLogDriverPower1 | kIOLogDriverPower2))
+ {
+ // Setup our PM logging & recording code
+ timeline = IOPMTimeline::timeline(this);
+ if (timeline) {
+ OSDictionary *tlInfo = timeline->copyInfoDictionary();
+
+ if (tlInfo)
+ {
+ setProperty(kIOPMTimelineDictionaryKey, tlInfo);
+ tlInfo->release();
+ }
+ }
+ }
+
// install power change handler
- registerPrioritySleepWakeInterest( &sysPowerDownHandler, this, 0);
+ gSysPowerDownNotifier = registerPrioritySleepWakeInterest( &sysPowerDownHandler, this, 0);
+#if !NO_KERNEL_HID
// Register for a notification when IODisplayWrangler is published
- _displayWranglerNotifier = addNotification( gIOPublishNotification,
- serviceMatching("IODisplayWrangler"),
- &displayWranglerPublished, this, 0);
-
- _batteryLocationNotifier = addNotification( gIOPublishNotification,
- resourceMatching("battery"),
- &batteryLocationPublished, this, this);
+ if ((tmpDict = serviceMatching("IODisplayWrangler")))
+ {
+ _displayWranglerNotifier = addMatchingNotification(
+ gIOPublishNotification, tmpDict,
+ (IOServiceMatchingNotificationHandler) &displayWranglerMatchPublished,
+ this, 0);
+ tmpDict->release();
+ }
+#endif
const OSSymbol *ucClassName = OSSymbol::withCStringNoCopy("RootDomainUserClient");
setProperty(gIOUserClientClassKey, (OSObject *) ucClassName);
ucClassName->release();
- IORegistryEntry *temp_entry = NULL;
- if( (temp_entry = IORegistryEntry::fromPath("mac-io/battery", gIODTPlane)) ||
- (temp_entry = IORegistryEntry::fromPath("mac-io/via-pmu/battery", gIODTPlane)))
+ // IOBacklightDisplay can take a long time to load at boot, or it may
+ // not load at all if you're booting with clamshell closed. We publish
+ // 'DisplayDims' here redundantly to get it published early and at all.
+ psIterator = getMatchingServices( serviceMatching("IOPMPowerSource") );
+ if( psIterator && psIterator->getNextObject() )
{
- // If this machine has a battery, publish the fact that the backlight
- // supports dimming.
- // Notice similar call in IOPMrootDomain::batteryLocationPublished() to
- // detect batteries on SMU machines.
+ // There's at least one battery on the system, so we publish
+ // 'DisplayDims' support for the LCD.
publishFeature("DisplayDims");
- temp_entry->release();
}
+ if(psIterator) {
+ psIterator->release();
+ }
+
+ sysctl_register_oid(&sysctl__kern_sleeptime);
+ sysctl_register_oid(&sysctl__kern_waketime);
+ sysctl_register_oid(&sysctl__kern_willshutdown);
+#if !CONFIG_EMBEDDED
+ sysctl_register_oid(&sysctl__kern_progressmeterenable);
+ sysctl_register_oid(&sysctl__kern_progressmeter);
+#endif /* !CONFIG_EMBEDDED */
+#if HIBERNATION
IOHibernateSystemInit(this);
+#endif
registerService(); // let clients find us
return true;
}
-IOReturn IOPMrootDomain::setPMSetting(int type, OSNumber *n)
-{
- if(_settingController && _settingController->func) {
- int seconds;
- seconds = n->unsigned32BitValue();
- return (*(_settingController->func))(type, seconds, _settingController->refcon);
- } else {
- return kIOReturnNoDevice;
- }
-}
-
-// **********************************************************************************
+//******************************************************************************
// setProperties
//
// Receive a setProperty call
// The "System Boot" property means the system is completely booted.
-// **********************************************************************************
-IOReturn IOPMrootDomain::setProperties ( OSObject *props_obj)
-{
- IOReturn return_value = kIOReturnSuccess;
- OSDictionary *dict = OSDynamicCast(OSDictionary, props_obj);
- OSBoolean *b;
- OSNumber *n;
- OSString *str;
- const OSSymbol *boot_complete_string = OSSymbol::withCString("System Boot Complete");
- const OSSymbol *power_button_string = OSSymbol::withCString("DisablePowerButtonSleep");
- const OSSymbol *stall_halt_string = OSSymbol::withCString("StallSystemAtHalt");
- const OSSymbol *auto_wake_string = OSSymbol::withCString("wake");
- const OSSymbol *auto_power_string = OSSymbol::withCString("poweron");
- const OSSymbol *wakeonring_string = OSSymbol::withCString("WakeOnRing");
- const OSSymbol *fileserver_string = OSSymbol::withCString("AutoRestartOnPowerLoss");
- const OSSymbol *wakeonlid_string = OSSymbol::withCString("WakeOnLid");
- const OSSymbol *wakeonac_string = OSSymbol::withCString("WakeOnACChange");
- const OSSymbol *hibernatemode_string = OSSymbol::withCString(kIOHibernateModeKey);
- const OSSymbol *hibernatefile_string = OSSymbol::withCString(kIOHibernateFileKey);
- const OSSymbol *hibernatefreeratio_string = OSSymbol::withCString(kIOHibernateFreeRatioKey);
- const OSSymbol *hibernatefreetime_string = OSSymbol::withCString(kIOHibernateFreeTimeKey);
- const OSSymbol *timezone_string = OSSymbol::withCString("TimeZoneOffsetSeconds");
-
- if(!dict)
+//******************************************************************************
+
+IOReturn IOPMrootDomain::setProperties( OSObject * props_obj )
+{
+ IOReturn return_value = kIOReturnSuccess;
+ OSDictionary *dict = OSDynamicCast(OSDictionary, props_obj);
+ OSBoolean *b;
+ OSNumber *n;
+ OSDictionary *d;
+ OSSymbol *type;
+ OSObject *obj;
+ unsigned int i;
+
+ const OSSymbol *publish_simulated_battery_string = OSSymbol::withCString("SoftwareSimulatedBatteries");
+ const OSSymbol *boot_complete_string = OSSymbol::withCString("System Boot Complete");
+ const OSSymbol *sys_shutdown_string = OSSymbol::withCString("System Shutdown");
+ const OSSymbol *stall_halt_string = OSSymbol::withCString("StallSystemAtHalt");
+ const OSSymbol *battery_warning_disabled_string = OSSymbol::withCString("BatteryWarningsDisabled");
+ const OSSymbol *idle_seconds_string = OSSymbol::withCString("System Idle Seconds");
+ const OSSymbol *sleepdisabled_string = OSSymbol::withCString("SleepDisabled");
+ const OSSymbol *ondeck_sleepwake_uuid_string = OSSymbol::withCString(kIOPMSleepWakeUUIDKey);
+ const OSSymbol *loginwindow_tracepoint_string = OSSymbol::withCString(kIOPMLoginWindowSecurityDebugKey);
+ const OSSymbol *pmTimelineLogging_string = OSSymbol::withCString(kIOPMTimelineDictionaryKey);
+#if HIBERNATION
+ const OSSymbol *hibernatemode_string = OSSymbol::withCString(kIOHibernateModeKey);
+ const OSSymbol *hibernatefile_string = OSSymbol::withCString(kIOHibernateFileKey);
+ const OSSymbol *hibernatefreeratio_string = OSSymbol::withCString(kIOHibernateFreeRatioKey);
+ const OSSymbol *hibernatefreetime_string = OSSymbol::withCString(kIOHibernateFreeTimeKey);
+#endif
+
+ if (!dict)
{
return_value = kIOReturnBadArgument;
goto exit;
}
- if( systemBooting
- && boot_complete_string
- && dict->getObject(boot_complete_string))
+ if ((b = OSDynamicCast(OSBoolean, dict->getObject(publish_simulated_battery_string))))
{
- systemBooting = false;
- adjustPowerState();
+ publishResource(publish_simulated_battery_string, kOSBooleanTrue);
+ }
+
+ if ((n = OSDynamicCast(OSNumber, dict->getObject(idle_seconds_string))))
+ {
+ setProperty(idle_seconds_string, n);
+ idleSeconds = n->unsigned32BitValue();
+ }
+
+ if (boot_complete_string && dict->getObject(boot_complete_string))
+ {
+ pmPowerStateQueue->submitPowerEvent( kPowerEventSystemBootCompleted );
+ }
+
+ if( battery_warning_disabled_string && dict->getObject(battery_warning_disabled_string))
+ {
+ setProperty( battery_warning_disabled_string, dict->getObject(battery_warning_disabled_string));
}
- if( power_button_string
- && (b = OSDynamicCast(OSBoolean, dict->getObject(power_button_string))) )
+ if (pmTimelineLogging_string && (d = OSDynamicCast(OSDictionary, dict->getObject(pmTimelineLogging_string))))
{
- setProperty(power_button_string, b);
+ if (timeline && timeline->setProperties(d))
+ {
+ OSDictionary *tlInfo = timeline->copyInfoDictionary();
+ if (tlInfo) {
+ setProperty(kIOPMTimelineDictionaryKey, tlInfo);
+ tlInfo->release();
+ }
+ }
}
- if( stall_halt_string
- && (b = OSDynamicCast(OSBoolean, dict->getObject(stall_halt_string))) )
+ if( sys_shutdown_string && (b = OSDynamicCast(OSBoolean, dict->getObject(sys_shutdown_string))))
+ {
+ pmPowerStateQueue->submitPowerEvent(kPowerEventSystemShutdown, (void *) b);
+ }
+
+ if( stall_halt_string && (b = OSDynamicCast(OSBoolean, dict->getObject(stall_halt_string))) )
{
setProperty(stall_halt_string, b);
}
+#if HIBERNATION
if ( hibernatemode_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatemode_string))))
+ && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatemode_string))))
{
- setProperty(hibernatemode_string, n);
+ setProperty(hibernatemode_string, n);
}
if ( hibernatefreeratio_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatefreeratio_string))))
+ && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatefreeratio_string))))
{
- setProperty(hibernatefreeratio_string, n);
+ setProperty(hibernatefreeratio_string, n);
}
if ( hibernatefreetime_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatefreetime_string))))
+ && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatefreetime_string))))
{
- setProperty(hibernatefreetime_string, n);
- }
+ setProperty(hibernatefreetime_string, n);
+ }
+ OSString *str;
if ( hibernatefile_string
- && (str = OSDynamicCast(OSString, dict->getObject(hibernatefile_string))))
+ && (str = OSDynamicCast(OSString, dict->getObject(hibernatefile_string))))
{
- setProperty(hibernatefile_string, str);
+ setProperty(hibernatefile_string, str);
}
-
- // Relay AutoWake setting to its controller
- if( auto_wake_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(auto_wake_string))) )
+#endif
+
+ if( sleepdisabled_string
+ && (b = OSDynamicCast(OSBoolean, dict->getObject(sleepdisabled_string))) )
{
- return_value = setPMSetting(kIOPMAutoWakeSetting, n);
- if(kIOReturnSuccess != return_value) goto exit;
+ setProperty(sleepdisabled_string, b);
+ pmPowerStateQueue->submitPowerEvent(kPowerEventUserDisabledSleep, (void *) b);
}
-
- // Relay AutoPower setting to its controller
- if( auto_power_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(auto_power_string))) )
+ if (ondeck_sleepwake_uuid_string
+ && (obj = dict->getObject(ondeck_sleepwake_uuid_string)))
{
- return_value = setPMSetting(kIOPMAutoPowerOnSetting, n);
- if(kIOReturnSuccess != return_value) goto exit;
- }
+ if(pmPowerStateQueue) {
+ obj->retain();
+ pmPowerStateQueue->submitPowerEvent(kPowerEventQueueSleepWakeUUID, (void *)obj);
+ }
- // Relay WakeOnRing setting to its controller
- if( wakeonring_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(wakeonring_string))) )
+ }
+
+ if (loginwindow_tracepoint_string
+ && (n = OSDynamicCast(OSNumber, dict->getObject(loginwindow_tracepoint_string)))
+ && pmTracer)
{
- return_value = setPMSetting(kIOPMWakeOnRingSetting, n);
- if(kIOReturnSuccess != return_value) goto exit;
+ pmTracer->traceLoginWindowPhase( n->unsigned8BitValue() );
}
- // Relay FileServer setting to its controller
- if( fileserver_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(fileserver_string))) )
+ if ((b = OSDynamicCast(OSBoolean, dict->getObject(kIOPMDeepSleepEnabledKey))))
{
- return_value = setPMSetting(kIOPMAutoRestartOnPowerLossSetting, n);
- if(kIOReturnSuccess != return_value) goto exit;
+ setProperty(kIOPMDeepSleepEnabledKey, b);
}
-
- // Relay WakeOnLid setting to its controller
- if( wakeonlid_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(wakeonlid_string))) )
+ if ((n = OSDynamicCast(OSNumber, dict->getObject(kIOPMDeepSleepDelayKey))))
{
- return_value = setPMSetting(kIOPMWakeOnLidSetting, n);
- if(kIOReturnSuccess != return_value) goto exit;
+ setProperty(kIOPMDeepSleepDelayKey, n);
}
-
- // Relay WakeOnACChange setting to its controller
- if( wakeonac_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(wakeonac_string))) )
+ if ((b = OSDynamicCast(OSBoolean, dict->getObject(kIOPMDestroyFVKeyOnStandbyKey))))
{
- return_value = setPMSetting(kIOPMWakeOnACChangeSetting, n);
- if(kIOReturnSuccess != return_value) goto exit;
+ setProperty(kIOPMDestroyFVKeyOnStandbyKey, b);
}
- // Relay timezone offset in seconds to SMU
- if( timezone_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(timezone_string))) )
- {
- return_value = setPMSetting(kIOPMTimeZoneSetting, n);
+ // Relay our allowed PM settings onto our registered PM clients
+ for(i = 0; i < allowedPMSettings->getCount(); i++) {
+
+ type = (OSSymbol *)allowedPMSettings->getObject(i);
+ if(!type) continue;
+
+ obj = dict->getObject(type);
+ if(!obj) continue;
+
+ if ((gIOPMSettingAutoWakeSecondsKey == type) && ((n = OSDynamicCast(OSNumber, obj))))
+ {
+ UInt32 rsecs = n->unsigned32BitValue();
+ if (!rsecs)
+ autoWakeStart = autoWakeEnd = 0;
+ else
+ {
+ AbsoluteTime deadline;
+ clock_interval_to_deadline(rsecs + kAutoWakePostWindow, kSecondScale, &deadline);
+ autoWakeEnd = AbsoluteTime_to_scalar(&deadline);
+ if (rsecs > kAutoWakePreWindow)
+ rsecs -= kAutoWakePreWindow;
+ else
+ rsecs = 0;
+ clock_interval_to_deadline(rsecs, kSecondScale, &deadline);
+ autoWakeStart = AbsoluteTime_to_scalar(&deadline);
+ }
+ }
+ if (gIOPMSettingDebugWakeRelativeKey == type)
+ {
+ if ((n = OSDynamicCast(OSNumber, obj)))
+ _debugWakeSeconds = n->unsigned32BitValue();
+ else
+ _debugWakeSeconds = 0;
+ }
+
+ return_value = setPMSetting(type, obj);
+
if(kIOReturnSuccess != return_value) goto exit;
}
-
- exit:
+exit:
+ if(publish_simulated_battery_string) publish_simulated_battery_string->release();
if(boot_complete_string) boot_complete_string->release();
- if(power_button_string) power_button_string->release();
+ if(sys_shutdown_string) sys_shutdown_string->release();
if(stall_halt_string) stall_halt_string->release();
- if(auto_wake_string) auto_wake_string->release();
- if(auto_power_string) auto_power_string->release();
- if(wakeonring_string) wakeonring_string->release();
- if(fileserver_string) fileserver_string->release();
- if(wakeonlid_string) wakeonlid_string->release();
- if(wakeonac_string) wakeonac_string->release();
- if(timezone_string) timezone_string->release();
+ if(battery_warning_disabled_string) battery_warning_disabled_string->release();
+ if(idle_seconds_string) idle_seconds_string->release();
+ if(sleepdisabled_string) sleepdisabled_string->release();
+ if(ondeck_sleepwake_uuid_string) ondeck_sleepwake_uuid_string->release();
+ if(loginwindow_tracepoint_string) loginwindow_tracepoint_string->release();
+ if(pmTimelineLogging_string) pmTimelineLogging_string->release();
+#if HIBERNATION
+ if(hibernatemode_string) hibernatemode_string->release();
+ if(hibernatefile_string) hibernatefile_string->release();
+ if(hibernatefreeratio_string) hibernatefreeratio_string->release();
+ if(hibernatefreetime_string) hibernatefreetime_string->release();
+#endif
return return_value;
}
+// MARK: -
+// MARK: Aggressiveness
-//*********************************************************************************
-// youAreRoot
+//******************************************************************************
+// setAggressiveness
//
-// Power Managment is informing us that we are the root power domain.
-// We know we are not the root however, since we have just instantiated a parent
-// for ourselves and made it the root. We override this method so it will have
-// no effect
-//*********************************************************************************
-IOReturn IOPMrootDomain::youAreRoot ( void )
+// Override IOService::setAggressiveness()
+//******************************************************************************
+
+IOReturn IOPMrootDomain::setAggressiveness(
+ unsigned long type,
+ unsigned long value )
{
- return IOPMNoErr;
+ return setAggressiveness( type, value, 0 );
}
-// **********************************************************************************
-// command_received
-//
-// No longer used
-// **********************************************************************************
-void IOPMrootDomain::command_received ( void * w, void * x, void * y, void * z )
+/*
+ * Private setAggressiveness() with an internal options argument.
+ */
+IOReturn IOPMrootDomain::setAggressiveness(
+ unsigned long type,
+ unsigned long value,
+ IOOptionBits options )
{
- super::command_received(w,x,y,z);
-}
+ AggressivesRequest * entry;
+ AggressivesRequest * request;
+ bool found = false;
+ DLOG("setAggressiveness(%x) 0x%x = %u\n",
+ (uint32_t) options, (uint32_t) type, (uint32_t) value);
-// **********************************************************************************
-// broadcast_aggressiveness
-//
-// **********************************************************************************
-IOReturn broadcast_aggressiveness ( OSObject * root, void * x, void * y, void *, void * )
-{
- ((IOPMrootDomain *)root)->broadcast_it((unsigned long)x,(unsigned long)y);
- return IOPMNoErr;
-}
+ request = IONew(AggressivesRequest, 1);
+ if (!request)
+ return kIOReturnNoMemory;
+ memset(request, 0, sizeof(*request));
+ request->options = options;
+ request->dataType = kAggressivesRequestTypeRecord;
+ request->data.record.type = (uint32_t) type;
+ request->data.record.value = (uint32_t) value;
-// **********************************************************************************
-// broadcast_it
-//
-// We are behind the command gate to broadcast an aggressiveness factor. We let the
-// superclass do it, but we need to snoop on factors that affect idle sleep.
-// **********************************************************************************
-void IOPMrootDomain::broadcast_it (unsigned long type, unsigned long value)
-{
- super::setAggressiveness(type,value);
+ AGGRESSIVES_LOCK();
- // Save user's spin down timer to restore after we replace it for idle sleep
- if( type == kPMMinutesToSpinDown ) user_spindown = value;
-
- // Use longestNonSleepSlider to calculate dimming adjust idle sleep timer
- longestNonSleepSlider = pm_vars->current_aggressiveness_values[kPMMinutesToDim];
+ // Update disk quick spindown flag used by getAggressiveness().
+ // Never merge requests with quick spindown flags set.
+ if (options & kAggressivesOptionQuickSpindownEnable)
+ gAggressivesState |= kAggressivesStateQuickSpindown;
+ else if (options & kAggressivesOptionQuickSpindownDisable)
+ gAggressivesState &= ~kAggressivesStateQuickSpindown;
+ else
+ {
+ // Coalesce requests with identical aggressives types.
+ // Deal with callers that calls us too "aggressively".
- if ( type == kPMMinutesToSleep ) {
- if ( (sleepSlider == 0) && (value != 0) ) {
- sleepSlider = value;
- // idle sleep is now enabled, maybe sleep now
- adjustPowerState();
- }
- sleepSlider = value;
- if ( sleepSlider == 0 ) {
- // idle sleep is now disabled
- adjustPowerState();
- // make sure we're powered
- patriarch->wakeSystem();
+ queue_iterate(&aggressivesQueue, entry, AggressivesRequest *, chain)
+ {
+ if ((entry->dataType == kAggressivesRequestTypeRecord) &&
+ (entry->data.record.type == type) &&
+ ((entry->options & kAggressivesOptionQuickSpindownMask) == 0))
+ {
+ entry->data.record.value = value;
+ found = true;
+ break;
+ }
}
}
- if ( sleepSlider > longestNonSleepSlider ) {
- extraSleepDelay = sleepSlider - longestNonSleepSlider ;
- }
- else {
- extraSleepDelay = 0;
+
+ if (!found)
+ {
+ queue_enter(&aggressivesQueue, request, AggressivesRequest *, chain);
}
-}
+ AGGRESSIVES_UNLOCK();
-// **********************************************************************************
-// sleepTimerExpired
-//
-// **********************************************************************************
-static void sleepTimerExpired ( thread_call_param_t us)
-{
- ((IOPMrootDomain *)us)->handleSleepTimerExpiration();
- }
-
-
-static void wakeupClamshellTimerExpired ( thread_call_param_t us)
-{
- ((IOPMrootDomain *)us)->stopIgnoringClamshellEventsDuringWakeup();
-}
+ if (found)
+ IODelete(request, AggressivesRequest, 1);
-
-// **********************************************************************************
-// handleSleepTimerExpiration
-//
-// The time between the sleep idle timeout and the next longest one has elapsed.
-// It's time to sleep. Start that by removing the clamp that's holding us awake.
-// **********************************************************************************
-void IOPMrootDomain::handleSleepTimerExpiration ( void )
-{
- // accelerate disk spin down if spin down timer is non-zero (zero = never spin down)
- if(0 != user_spindown)
- setQuickSpinDownTimeout();
+ if (options & kAggressivesOptionSynchronous)
+ handleAggressivesRequests(); // not truly synchronous
+ else
+ thread_call_enter(aggressivesThreadCall);
- sleepASAP = true;
- adjustPowerState();
+ return kIOReturnSuccess;
}
+//******************************************************************************
+// getAggressiveness
+//
+// Override IOService::setAggressiveness()
+// Fetch the aggressiveness factor with the given type.
+//******************************************************************************
-void IOPMrootDomain::stopIgnoringClamshellEventsDuringWakeup(void)
+IOReturn IOPMrootDomain::getAggressiveness (
+ unsigned long type,
+ unsigned long * outLevel )
{
- OSObject * state;
+ uint32_t value = 0;
+ int source = 0;
- // Allow clamshell-induced sleep now
- ignoringClamshellDuringWakeup = false;
+ if (!outLevel)
+ return kIOReturnBadArgument;
- if ((state = getProperty(kAppleClamshellStateKey)))
- publishResource(kAppleClamshellStateKey, state);
-}
+ AGGRESSIVES_LOCK();
-//*********************************************************************************
-// setAggressiveness
-//
-// Some aggressiveness factor has changed. We broadcast it to the hierarchy while on
-// the Power Mangement workloop thread. This enables objects in the
-// hierarchy to successfully alter their idle timers, which are all on the
-// same thread.
-//*********************************************************************************
+ // Disk quick spindown in effect, report value = 1
-static int pmsallsetup = 0;
+ if ((gAggressivesState & kAggressivesStateQuickSpindown) &&
+ (type == kPMMinutesToSpinDown))
+ {
+ value = kAggressivesMinValue;
+ source = 1;
+ }
-IOReturn IOPMrootDomain::setAggressiveness ( unsigned long type, unsigned long newLevel )
-{
-#ifdef __ppc__
- if(pmsExperimental & 3) kprintf("setAggressiveness: type = %08X, newlevel = %08X\n", type, newLevel);
- if(pmsExperimental & 1) { /* Is experimental mode enabled? */
- if(pmsInstalled && (type == kPMSetProcessorSpeed)) { /* We want to look at all processor speed changes if stepper is installed */
- if(pmsallsetup) return kIOReturnSuccess; /* If already running, just eat this */
- kprintf("setAggressiveness: starting stepper...\n");
- pmsallsetup = 1; /* Remember we did this */
- pmsPark();
- pmsStart(); /* Get it all started up... */
- return kIOReturnSuccess; /* Leave now... */
- }
- }
-#endif
+ // Consult the pending request queue.
+
+ if (!source)
+ {
+ AggressivesRequest * entry;
- if ( pm_vars->PMcommandGate ) {
- pm_vars->PMcommandGate->runAction(broadcast_aggressiveness,(void *)type,(void *)newLevel);
+ queue_iterate(&aggressivesQueue, entry, AggressivesRequest *, chain)
+ {
+ if ((entry->dataType == kAggressivesRequestTypeRecord) &&
+ (entry->data.record.type == type) &&
+ ((entry->options & kAggressivesOptionQuickSpindownMask) == 0))
+ {
+ value = entry->data.record.value;
+ source = 2;
+ break;
+ }
+ }
}
-
- return kIOReturnSuccess;
-}
+ // Consult the backend records.
-// **********************************************************************************
-// sleepSystem
-//
-// **********************************************************************************
-IOReturn IOPMrootDomain::sleepSystem ( void )
-{
- //kprintf("sleep demand received\n");
- if ( !systemBooting && allowSleep && sleepIsSupported ) {
- patriarch->sleepSystem();
+ if (!source && aggressivesData)
+ {
+ AggressivesRecord * record;
+ int i, count;
- return kIOReturnSuccess;
+ count = aggressivesData->getLength() / sizeof(AggressivesRecord);
+ record = (AggressivesRecord *) aggressivesData->getBytesNoCopy();
+
+ for (i = 0; i < count; i++, record++)
+ {
+ if (record->type == type)
+ {
+ value = record->value;
+ source = 3;
+ break;
+ }
+ }
}
- if ( !systemBooting && allowSleep && !sleepIsSupported ) {
- patriarch->dozeSystem();
+
+ AGGRESSIVES_UNLOCK();
+
+ if (source)
+ {
+ DLOG("getAggressiveness(%d) 0x%x = %u\n",
+ source, (uint32_t) type, value);
+ *outLevel = (unsigned long) value;
return kIOReturnSuccess;
}
- return kIOReturnSuccess;
+ else
+ {
+ DLOG("getAggressiveness type 0x%x not found\n", (uint32_t) type);
+ *outLevel = 0; // default return = 0, driver may not check for error
+ return kIOReturnInvalid;
+ }
}
-
-// **********************************************************************************
-// shutdownSystem
+//******************************************************************************
+// joinAggressiveness
//
-// **********************************************************************************
-IOReturn IOPMrootDomain::shutdownSystem ( void )
+// Request from IOService to join future aggressiveness broadcasts.
+//******************************************************************************
+
+IOReturn IOPMrootDomain::joinAggressiveness(
+ IOService * service )
{
- //patriarch->shutDownSystem();
- return kIOReturnUnsupported;
-}
+ AggressivesRequest * request;
+ if (!service || (service == this))
+ return kIOReturnBadArgument;
-// **********************************************************************************
-// restartSystem
+ DLOG("joinAggressiveness %s %p\n", service->getName(), service);
+
+ request = IONew(AggressivesRequest, 1);
+ if (!request)
+ return kIOReturnNoMemory;
+
+ service->retain(); // released by synchronizeAggressives()
+
+ memset(request, 0, sizeof(*request));
+ request->dataType = kAggressivesRequestTypeService;
+ request->data.service = service;
+
+ AGGRESSIVES_LOCK();
+ queue_enter(&aggressivesQueue, request, AggressivesRequest *, chain);
+ AGGRESSIVES_UNLOCK();
+
+ thread_call_enter(aggressivesThreadCall);
+
+ return kIOReturnSuccess;
+}
+
+//******************************************************************************
+// handleAggressivesRequests
//
-// **********************************************************************************
-IOReturn IOPMrootDomain::restartSystem ( void )
+// Backend thread processes all incoming aggressiveness requests in the queue.
+//******************************************************************************
+
+static void
+handleAggressivesFunction(
+ thread_call_param_t param1,
+ thread_call_param_t param2 )
{
- //patriarch->restartSystem();
- return kIOReturnUnsupported;
+ if (param1)
+ {
+ ((IOPMrootDomain *) param1)->handleAggressivesRequests();
+ }
}
-
-// **********************************************************************************
-// powerChangeDone
-//
-// This overrides powerChangeDone in IOService.
-//
-// Finder sleep and idle sleep move us from the ON state to the SLEEP_STATE.
-// In this case:
-// If we just finished going to the SLEEP_STATE, and the platform is capable of true sleep,
-// sleep the kernel. Otherwise switch up to the DOZE_STATE which will keep almost
-// everything as off as it can get.
-//
-// **********************************************************************************
-void IOPMrootDomain::powerChangeDone ( unsigned long previousState )
+void IOPMrootDomain::handleAggressivesRequests( void )
{
- OSNumber * propertyPtr;
- unsigned short theProperty;
- AbsoluteTime deadline;
-
- switch ( pm_vars->myCurrentState ) {
- case SLEEP_STATE:
- if ( canSleep && sleepIsSupported )
+ AggressivesRecord * start;
+ AggressivesRecord * record;
+ AggressivesRequest * request;
+ queue_head_t joinedQueue;
+ int i, count;
+ bool broadcast;
+ bool found;
+ bool pingSelf = false;
+
+ AGGRESSIVES_LOCK();
+
+ if ((gAggressivesState & kAggressivesStateBusy) || !aggressivesData ||
+ queue_empty(&aggressivesQueue))
+ goto unlock_done;
+
+ gAggressivesState |= kAggressivesStateBusy;
+ count = aggressivesData->getLength() / sizeof(AggressivesRecord);
+ start = (AggressivesRecord *) aggressivesData->getBytesNoCopy();
+
+ do
+ {
+ broadcast = false;
+ queue_init(&joinedQueue);
+
+ do
+ {
+ // Remove request from the incoming queue in FIFO order.
+ queue_remove_first(&aggressivesQueue, request, AggressivesRequest *, chain);
+ switch (request->dataType)
{
- // re-enable this timer for next sleep
- idleSleepPending = false;
+ case kAggressivesRequestTypeRecord:
+ // Update existing record if found.
+ found = false;
+ for (i = 0, record = start; i < count; i++, record++)
+ {
+ if (record->type == request->data.record.type)
+ {
+ found = true;
+
+ if (request->options & kAggressivesOptionQuickSpindownEnable)
+ {
+ if ((record->flags & kAggressivesRecordFlagMinValue) == 0)
+ {
+ broadcast = true;
+ record->flags |= (kAggressivesRecordFlagMinValue |
+ kAggressivesRecordFlagModified);
+ DLOG("disk spindown accelerated, was %u min\n",
+ record->value);
+ }
+ }
+ else if (request->options & kAggressivesOptionQuickSpindownDisable)
+ {
+ if (record->flags & kAggressivesRecordFlagMinValue)
+ {
+ broadcast = true;
+ record->flags |= kAggressivesRecordFlagModified;
+ record->flags &= ~kAggressivesRecordFlagMinValue;
+ DLOG("disk spindown restored to %u min\n",
+ record->value);
+ }
+ }
+ else if (record->value != request->data.record.value)
+ {
+ record->value = request->data.record.value;
+ if ((record->flags & kAggressivesRecordFlagMinValue) == 0)
+ {
+ broadcast = true;
+ record->flags |= kAggressivesRecordFlagModified;
+ }
+ }
+ break;
+ }
+ }
- IOLog("System %sSleep\n", gIOHibernateState ? "Safe" : "");
+ // No matching record, append a new record.
+ if (!found &&
+ ((request->options & kAggressivesOptionQuickSpindownDisable) == 0))
+ {
+ AggressivesRecord newRecord;
+
+ newRecord.flags = kAggressivesRecordFlagModified;
+ newRecord.type = request->data.record.type;
+ newRecord.value = request->data.record.value;
+ if (request->options & kAggressivesOptionQuickSpindownEnable)
+ {
+ newRecord.flags |= kAggressivesRecordFlagMinValue;
+ DLOG("disk spindown accelerated\n");
+ }
+
+ aggressivesData->appendBytes(&newRecord, sizeof(newRecord));
+
+ // OSData may have switched to another (larger) buffer.
+ count = aggressivesData->getLength() / sizeof(AggressivesRecord);
+ start = (AggressivesRecord *) aggressivesData->getBytesNoCopy();
+ broadcast = true;
+ }
- IOHibernateSystemHasSlept();
+ // Finished processing the request, release it.
+ IODelete(request, AggressivesRequest, 1);
+ break;
- pm_vars->thePlatform->sleepKernel();
+ case kAggressivesRequestTypeService:
+ // synchronizeAggressives() will free request.
+ queue_enter(&joinedQueue, request, AggressivesRequest *, chain);
+ break;
- // The CPU(s) are off at this point. When they're awakened by CPU interrupt,
- // code will resume execution here.
+ default:
+ panic("bad aggressives request type %x\n", request->dataType);
+ break;
+ }
+ } while (!queue_empty(&aggressivesQueue));
- // Now we're waking...
- IOHibernateSystemWake();
+ // Release the lock to perform work, with busy flag set.
+ if (!queue_empty(&joinedQueue) || broadcast)
+ {
+ AGGRESSIVES_UNLOCK();
+ if (!queue_empty(&joinedQueue))
+ synchronizeAggressives(&joinedQueue, start, count);
+ if (broadcast)
+ broadcastAggressives(start, count);
+ AGGRESSIVES_LOCK();
+ }
- // stay awake for at least 30 seconds
- clock_interval_to_deadline(30, kSecondScale, &deadline);
- thread_call_enter_delayed(extraSleepTimer, deadline);
- // this gets turned off when we sleep again
- idleSleepPending = true;
-
- // Ignore closed clamshell during wakeup and for a few seconds
- // after wakeup is complete
- ignoringClamshellDuringWakeup = true;
+ // Remove the modified flag from all records.
+ for (i = 0, record = start; i < count; i++, record++)
+ {
+ if ((record->flags & kAggressivesRecordFlagModified) &&
+ ((record->type == kPMMinutesToDim) ||
+ (record->type == kPMMinutesToSleep)))
+ pingSelf = true;
- // sleep transition complete
- gSleepOrShutdownPending = 0;
+ record->flags &= ~kAggressivesRecordFlagModified;
+ }
- // trip the reset of the calendar clock
- clock_wakeup_calendar();
+ // Check the incoming queue again since new entries may have been
+ // added while lock was released above.
- // get us some power
- patriarch->wakeSystem();
-
- // early stage wake notification
- tellClients(kIOMessageSystemWillPowerOn);
+ } while (!queue_empty(&aggressivesQueue));
- // tell the tree we're waking
- IOLog("System %sWake\n", gIOHibernateState ? "SafeSleep " : "");
- systemWake();
-
- // Allow drivers to request extra processing time before clamshell
- // sleep if kIOREMSleepEnabledKey is present.
- // Ignore clamshell events for at least 5 seconds
- if(getProperty(kIOREMSleepEnabledKey)) {
- // clamshellWakeupIgnore callout clears ignoreClamshellDuringWakeup bit
- clock_interval_to_deadline(5, kSecondScale, &deadline);
- if(clamshellWakeupIgnore) thread_call_enter_delayed(clamshellWakeupIgnore, deadline);
- } else ignoringClamshellDuringWakeup = false;
-
- // Find out what woke us
- propertyPtr = OSDynamicCast(OSNumber,getProperty("WakeEvent"));
- if ( propertyPtr ) {
- theProperty = propertyPtr->unsigned16BitValue();
- IOLog("Wake event %04x\n",theProperty);
- if ( (theProperty & 0x0008) || //lid
- (theProperty & 0x0800) || // front panel button
- (theProperty & 0x0020) || // external keyboard
- (theProperty & 0x0001) ) { // internal keyboard
- // We've identified the wakeup event as UI driven
- reportUserInput();
- }
- } else {
- // Since we can't identify the wakeup event, treat it as UI activity
- reportUserInput();
- }
-
- // Wake for thirty seconds
- changePowerStateToPriv(ON_STATE);
- powerOverrideOffPriv();
- } else {
- // allow us to step up a power state
- patriarch->sleepToDoze();
- // and do it
- changePowerStateToPriv(DOZE_STATE);
- }
- break;
+ gAggressivesState &= ~kAggressivesStateBusy;
- case DOZE_STATE:
- if ( previousState != DOZE_STATE )
- {
- IOLog("System Doze\n");
- }
- // re-enable this timer for next sleep
- idleSleepPending = false;
- gSleepOrShutdownPending = 0;
- break;
-
- case RESTART_STATE:
- IOLog("System Restart\n");
- PEHaltRestart(kPERestartCPU);
- break;
-
- case OFF_STATE:
- IOLog("System Halt\n");
- PEHaltRestart(kPEHaltCPU);
- break;
+unlock_done:
+ AGGRESSIVES_UNLOCK();
+
+ // Root domain is interested in system and display sleep slider changes.
+ // Submit a power event to handle those changes on the PM work loop.
+
+ if (pingSelf && pmPowerStateQueue) {
+ pmPowerStateQueue->submitPowerEvent(
+ kPowerEventPolicyStimulus,
+ (void *) kStimulusAggressivenessChanged );
}
}
-
-// **********************************************************************************
-// wakeFromDoze
+//******************************************************************************
+// synchronizeAggressives
//
-// The Display Wrangler calls here when it switches to its highest state. If the
-// system is currently dozing, allow it to wake by making sure the parent is
-// providing power.
-// **********************************************************************************
-void IOPMrootDomain::wakeFromDoze( void )
+// Push all known aggressiveness records to one or more IOService.
+//******************************************************************************
+
+void IOPMrootDomain::synchronizeAggressives(
+ queue_head_t * joinedQueue,
+ const AggressivesRecord * array,
+ int count )
{
- if ( pm_vars->myCurrentState == DOZE_STATE )
+ IOService * service;
+ AggressivesRequest * request;
+ const AggressivesRecord * record;
+ IOPMDriverCallEntry callEntry;
+ uint32_t value;
+ int i;
+
+ while (!queue_empty(joinedQueue))
{
- // reset this till next attempt
- canSleep = true;
- powerOverrideOffPriv();
+ queue_remove_first(joinedQueue, request, AggressivesRequest *, chain);
+ if (request->dataType == kAggressivesRequestTypeService)
+ service = request->data.service;
+ else
+ service = 0;
- // early wake notification
- tellClients(kIOMessageSystemWillPowerOn);
+ IODelete(request, AggressivesRequest, 1);
+ request = 0;
+
+ if (service)
+ {
+ if (service->assertPMDriverCall(&callEntry))
+ {
+ for (i = 0, record = array; i < count; i++, record++)
+ {
+ value = record->value;
+ if (record->flags & kAggressivesRecordFlagMinValue)
+ value = kAggressivesMinValue;
- // allow us to wake if children so desire
- patriarch->wakeSystem();
+ _LOG("synchronizeAggressives 0x%x = %u to %s\n",
+ record->type, value, service->getName());
+ service->setAggressiveness(record->type, value);
+ }
+ service->deassertPMDriverCall(&callEntry);
+ }
+ service->release(); // retained by joinAggressiveness()
+ }
}
}
-
-// **********************************************************************************
-// publishFeature
+//******************************************************************************
+// broadcastAggressives
//
-// Adds a new feature to the supported features dictionary
-//
-//
-// **********************************************************************************
-void IOPMrootDomain::publishFeature( const char * feature )
+// Traverse PM tree and call setAggressiveness() for records that have changed.
+//******************************************************************************
+
+void IOPMrootDomain::broadcastAggressives(
+ const AggressivesRecord * array,
+ int count )
{
- if(featuresDictLock) IOLockLock(featuresDictLock);
- OSDictionary *features =
- (OSDictionary *) getProperty(kRootDomainSupportedFeatures);
-
- if ( features && OSDynamicCast(OSDictionary, features))
- features = OSDictionary::withDictionary(features);
- else
- features = OSDictionary::withCapacity(1);
+ IORegistryIterator * iter;
+ IORegistryEntry * entry;
+ IOPowerConnection * connect;
+ IOService * service;
+ const AggressivesRecord * record;
+ IOPMDriverCallEntry callEntry;
+ uint32_t value;
+ int i;
+
+ iter = IORegistryIterator::iterateOver(
+ this, gIOPowerPlane, kIORegistryIterateRecursively);
+ if (iter)
+ {
+ do
+ {
+ iter->reset();
+ while ((entry = iter->getNextObject()))
+ {
+ connect = OSDynamicCast(IOPowerConnection, entry);
+ if (!connect || !connect->getReadyFlag())
+ continue;
- features->setObject(feature, kOSBooleanTrue);
- setProperty(kRootDomainSupportedFeatures, features);
- features->release();
- if(featuresDictLock) IOLockUnlock(featuresDictLock);
+ if ((service = (IOService *) connect->copyChildEntry(gIOPowerPlane)))
+ {
+ if (service->assertPMDriverCall(&callEntry))
+ {
+ for (i = 0, record = array; i < count; i++, record++)
+ {
+ if (record->flags & kAggressivesRecordFlagModified)
+ {
+ value = record->value;
+ if (record->flags & kAggressivesRecordFlagMinValue)
+ value = kAggressivesMinValue;
+ _LOG("broadcastAggressives %x = %u to %s\n",
+ record->type, value, service->getName());
+ service->setAggressiveness(record->type, value);
+ }
+ }
+ service->deassertPMDriverCall(&callEntry);
+ }
+ service->release();
+ }
+ }
+ }
+ while (!entry && !iter->isValid());
+ iter->release();
+ }
}
+// MARK: -
+// MARK: System Sleep
-void IOPMrootDomain::unIdleDevice( IOService *theDevice, unsigned long theState )
-{
- if(pmPowerStateQueue)
- pmPowerStateQueue->unIdleOccurred(theDevice, theState);
-}
+//******************************************************************************
+// startIdleSleepTimer
+//
+//******************************************************************************
-void IOPMrootDomain::announcePowerSourceChange( void )
+void IOPMrootDomain::startIdleSleepTimer( uint32_t inSeconds )
{
- IORegistryEntry *_batteryRegEntry = (IORegistryEntry *) getProperty("BatteryEntry");
+ AbsoluteTime deadline;
- // (if possible) re-publish power source state under IOPMrootDomain
- // (only done if the battery controller publishes an IOResource defining battery location)
- if(_batteryRegEntry)
+ ASSERT_GATED();
+ if (inSeconds)
{
- OSArray *batt_info;
- batt_info = (OSArray *) _batteryRegEntry->getProperty(kIOBatteryInfoKey);
- if(batt_info)
- setProperty(kIOBatteryInfoKey, batt_info);
+ clock_interval_to_deadline(inSeconds, kSecondScale, &deadline);
+ thread_call_enter_delayed(extraSleepTimer, deadline);
+ idleSleepTimerPending = true;
+ DLOG("idle timer set for %u seconds\n", inSeconds);
}
-
- messageClients(kIOPMMessageBatteryStatusHasChanged);
}
-IOReturn IOPMrootDomain::registerPMSettingController
- (IOPMSettingControllerCallback func, void *info)
+//******************************************************************************
+// cancelIdleSleepTimer
+//
+//******************************************************************************
+
+void IOPMrootDomain::cancelIdleSleepTimer( void )
{
- if(_settingController) return kIOReturnExclusiveAccess;
-
- _settingController = (PMSettingCtrl *)IOMalloc(sizeof(PMSettingCtrl));
- if(!_settingController) return kIOReturnNoMemory;
-
- _settingController->func = func;
- _settingController->refcon = info;
- return kIOReturnSuccess;
+ ASSERT_GATED();
+ if (idleSleepTimerPending)
+ {
+ DLOG("idle timer cancelled\n");
+ thread_call_cancel(extraSleepTimer);
+ idleSleepTimerPending = false;
+ }
}
-
-//*********************************************************************************
-// receivePowerNotification
+//******************************************************************************
+// idleSleepTimerExpired
//
-// The power controller is notifying us of a hardware-related power management
-// event that we must handle. This is a result of an 'environment' interrupt from
-// the power mgt micro.
-//*********************************************************************************
+//******************************************************************************
-IOReturn IOPMrootDomain::receivePowerNotification (UInt32 msg)
+static void idleSleepTimerExpired(
+ thread_call_param_t us, thread_call_param_t )
{
- if (msg & kIOPMOverTemp)
- {
- IOLog("Power Management received emergency overtemp signal. Going to sleep.");
- (void) sleepSystem ();
- }
- if (msg & kIOPMSetDesktopMode)
- {
- desktopMode = (0 != (msg & kIOPMSetValue));
- msg &= ~(kIOPMSetDesktopMode | kIOPMSetValue);
- }
- if (msg & kIOPMSetACAdaptorConnected)
- {
- acAdaptorConnect = (0 != (msg & kIOPMSetValue));
- msg &= ~(kIOPMSetACAdaptorConnected | kIOPMSetValue);
- }
- if (msg & kIOPMEnableClamshell)
- {
- ignoringClamshell = false;
- }
- if (msg & kIOPMDisableClamshell)
- {
- ignoringClamshell = true;
- }
+ ((IOPMrootDomain *)us)->handleSleepTimerExpiration();
+}
- if (msg & kIOPMProcessorSpeedChange)
- {
- IOService *pmu = waitForService(serviceMatching("ApplePMU"));
- pmu->callPlatformFunction("prepareForSleep", false, 0, 0, 0, 0);
- pm_vars->thePlatform->sleepKernel();
- pmu->callPlatformFunction("recoverFromSleep", false, 0, 0, 0, 0);
- }
+//******************************************************************************
+// handleSleepTimerExpiration
+//
+// The time between the sleep idle timeout and the next longest one has elapsed.
+// It's time to sleep. Start that by removing the clamp that's holding us awake.
+//******************************************************************************
- if (msg & kIOPMSleepNow)
- {
- (void) sleepSystem ();
- }
-
- if (msg & kIOPMPowerEmergency)
+void IOPMrootDomain::handleSleepTimerExpiration( void )
+{
+ if (!getPMworkloop()->inGate())
{
- (void) sleepSystem ();
+ getPMworkloop()->runAction(
+ OSMemberFunctionCast(IOWorkLoop::Action, this,
+ &IOPMrootDomain::handleSleepTimerExpiration),
+ this);
+ return;
}
- if (msg & kIOPMClamshellClosed)
- {
- if ( !ignoringClamshell && !ignoringClamshellDuringWakeup
- && (!desktopMode || !acAdaptorConnect) )
- {
-
- (void) sleepSystem ();
- }
- }
+ AbsoluteTime time;
- if (msg & kIOPMPowerButton)
- {
- // toggle state of sleep/wake
- // are we dozing?
- if ( pm_vars->myCurrentState == DOZE_STATE )
- {
- // yes, tell the tree we're waking
- systemWake();
- // wake the Display Wrangler
- reportUserInput();
- }
- else {
- // Check that power button sleep is enabled
- if(kOSBooleanTrue != getProperty(OSString::withCString("DisablePowerButtonSleep")))
- sleepSystem();
- }
- }
+ DLOG("sleep timer expired\n");
+ ASSERT_GATED();
- // if the case has been closed, we allow
- // the machine to be put to sleep or to idle sleep
+ idleSleepTimerPending = false;
- if ( (msg & kIOPMAllowSleep) && !allowSleep )
+ clock_get_uptime(&time);
+ if ((AbsoluteTime_to_scalar(&time) > autoWakeStart) &&
+ (AbsoluteTime_to_scalar(&time) < autoWakeEnd))
{
- allowSleep = true;
- adjustPowerState();
+ thread_call_enter_delayed(extraSleepTimer, *((AbsoluteTime *) &autoWakeEnd));
+ return;
}
- // if the case has been opened, we disallow sleep/doze
+ setQuickSpinDownTimeout();
+ adjustPowerState(true);
+}
- if (msg & kIOPMPreventSleep) {
- allowSleep = false;
- // are we dozing?
- if ( pm_vars->myCurrentState == DOZE_STATE ) {
- // yes, tell the tree we're waking
- systemWake();
- adjustPowerState();
- // wake the Display Wrangler
- reportUserInput();
- } else {
- adjustPowerState();
- // make sure we have power to clamp
- patriarch->wakeSystem();
- }
- }
+//******************************************************************************
+// setQuickSpinDownTimeout
+//
+//******************************************************************************
- return 0;
+void IOPMrootDomain::setQuickSpinDownTimeout( void )
+{
+ ASSERT_GATED();
+ setAggressiveness(
+ kPMMinutesToSpinDown, 0, kAggressivesOptionQuickSpindownEnable );
}
+//******************************************************************************
+// restoreUserSpinDownTimeout
+//
+//******************************************************************************
-//*********************************************************************************
-// sleepSupported
+void IOPMrootDomain::restoreUserSpinDownTimeout( void )
+{
+ ASSERT_GATED();
+ setAggressiveness(
+ kPMMinutesToSpinDown, 0, kAggressivesOptionQuickSpindownDisable );
+}
+
+//******************************************************************************
+// sleepSystem
//
-//*********************************************************************************
+//******************************************************************************
-void IOPMrootDomain::setSleepSupported( IOOptionBits flags )
+/* public */
+IOReturn IOPMrootDomain::sleepSystem( void )
+{
+ return sleepSystemOptions(NULL);
+}
+
+/* private */
+IOReturn IOPMrootDomain::sleepSystemOptions( OSDictionary *options )
{
- if ( flags & kPCICantSleep )
+ /* sleepSystem is a public function, and may be called by any kernel driver.
+ * And that's bad - drivers should sleep the system by calling
+ * receivePowerNotification() instead. Drivers should not use sleepSystem.
+ *
+ * Note that user space app calls to IOPMSleepSystem() will also travel
+ * this code path and thus be correctly identified as software sleeps.
+ */
+
+ if (options && options->getObject("OSSwitch"))
{
- canSleep = false;
+ // Log specific sleep cause for OS Switch hibernation
+ return privateSleepSystem( kIOPMSleepReasonOSSwitchHibernate);
} else {
- platformSleepSupport = flags;
+ return privateSleepSystem( kIOPMSleepReasonSoftware);
}
-
}
-//*********************************************************************************
-// requestPowerDomainState
-//
-// The root domain intercepts this call to the superclass.
-//
-// If the clamp bit is not set in the desire, then the child doesn't need the power
-// state it's requesting; it just wants it. The root ignores desires but not needs.
-// If the clamp bit is not set, the root takes it that the child can tolerate no
-// power and interprets the request accordingly. If all children can thus tolerate
-// no power, we are on our way to idle sleep.
-//*********************************************************************************
-
-IOReturn IOPMrootDomain::requestPowerDomainState ( IOPMPowerFlags desiredState, IOPowerConnection * whichChild, unsigned long specification )
+/* private */
+IOReturn IOPMrootDomain::privateSleepSystem( uint32_t sleepReason )
{
- OSIterator *iter;
- OSObject *next;
- IOPowerConnection *connection;
- unsigned long powerRequestFlag = 0;
- IOPMPowerFlags editedDesire = desiredState;
+ static const char * IOPMSleepReasons[] = {
+ "",
+ kIOPMClamshellSleepKey,
+ kIOPMPowerButtonSleepKey,
+ kIOPMSoftwareSleepKey,
+ kIOPMOSSwitchHibernationKey,
+ kIOPMIdleSleepKey,
+ kIOPMLowPowerSleepKey,
+ kIOPMClamshellSleepKey,
+ kIOPMThermalEmergencySleepKey,
+ kIOPMMaintenanceSleepKey
+ };
+
+ PMEventDetails *details;
+
+ if (!checkSystemCanSleep())
+ {
+ // Record why the system couldn't sleep
+ details = PMEventDetails::eventDetails(kIOPMEventTypeSleep, NULL,
+ sleepReason, kIOReturnNotPermitted);
+
+ recordAndReleasePMEvent( details );
+ return kIOReturnNotPermitted;
+ }
- // if they don't really need it, they don't get it
- if ( !(desiredState & kIOPMPreventIdleSleep) ) {
- editedDesire = 0;
+ if (timeline)
+ timeline->setSleepCycleInProgressFlag(true);
+
+ // Time to publish a UUID for the Sleep --> Wake cycle
+ if(pmPowerStateQueue) {
+ pmPowerStateQueue->submitPowerEvent(kPowerEventPublishSleepWakeUUID, (void *)true);
}
+
+ // Log the beginning of system sleep.
+ details = PMEventDetails::eventDetails(kIOPMEventTypeSleep, NULL,
+ sleepReason, kIOReturnSuccess);
+
+ recordAndReleasePMEvent( details );
+
+ // Record sleep cause in IORegistry
+ lastSleepReason = sleepReason;
+ sleepReason -= (kIOPMSleepReasonClamshell - 1);
+ if (sleepReason && (sleepReason < sizeof(IOPMSleepReasons)/sizeof(IOPMSleepReasons[0]))) {
+ setProperty(kRootDomainSleepReasonKey, IOPMSleepReasons[sleepReason]);
+ }
- IOLockLock(pm_vars->childLock);
+ if (pmPowerStateQueue)
+ pmPowerStateQueue->submitPowerEvent(
+ kPowerEventPolicyStimulus,
+ (void *) kStimulusDemandSystemSleep );
+
+ return kIOReturnSuccess;
+}
+
+IOReturn IOPMrootDomain::recordPMEventGated(PMEventDetails *record)
+{
+ // If we don't have a place to log to, we can't actually
+ // log anything. Chances are, the person who is asking us to do
+ // the PM logging has forgotten to set the right bootflags
+ if(!timeline)
+ return kIOReturnSuccess;
+
+ if(gIOPMWorkLoop->inGate() == false) {
+
+ IOReturn ret = gIOPMWorkLoop->runAction(
+ OSMemberFunctionCast(IOWorkLoop::Action, this, &IOPMrootDomain::recordPMEventGated),
+ (OSObject *)this,
+ (void *)record);
+
+ return ret;
+ }
+ else {
+ // Now that we're guaranteed to be running in gate ...
+
+ // Check the validity of the argument we are given
+ if(!record)
+ return kIOReturnBadArgument;
+
+ // Record a driver event, or a system event
+ if(record->eventClassifier == kIOPMEventClassDriverEvent
+ || record->eventClassifier == kIOPMEventClassSystemEvent)
+ return this->recordPMEvent(record);
+
+ else
+ return kIOReturnBadArgument;
+ }
+}
+
+IOReturn IOPMrootDomain::recordAndReleasePMEventGated(PMEventDetails *record)
+{
+ IOReturn ret = kIOReturnBadArgument;
+
+ if (record)
+ {
+ ret = recordPMEventGated(record);
+ record->release();
+ }
+
+ return ret;
+}
+
+//******************************************************************************
+// powerChangeDone
+//
+// This overrides powerChangeDone in IOService.
+//******************************************************************************
+
+void IOPMrootDomain::powerChangeDone( unsigned long previousPowerState )
+{
+ PMEventDetails *details;
+
+ ASSERT_GATED();
+ DLOG("PowerChangeDone: %u->%u\n",
+ (uint32_t) previousPowerState, (uint32_t) getPowerState());
+
+ switch ( getPowerState() )
+ {
+ case SLEEP_STATE: {
+ if (previousPowerState != ON_STATE)
+ break;
+
+ details = PMEventDetails::eventDetails(
+ kIOPMEventTypeSleepDone,
+ NULL,
+ NULL,
+ kIOReturnSuccess);
+
+ recordAndReleasePMEvent( details );
+
+ // re-enable this timer for next sleep
+ cancelIdleSleepTimer();
+
+ clock_sec_t secs;
+ clock_usec_t microsecs;
+ clock_get_calendar_microtime(&secs, µsecs);
+ logtime(secs);
+ gIOLastSleepTime.tv_sec = secs;
+ gIOLastSleepTime.tv_usec = microsecs;
+ gIOLastWakeTime.tv_sec = 0;
+ gIOLastWakeTime.tv_usec = 0;
+
+#if HIBERNATION
+ LOG("System %sSleep\n", gIOHibernateState ? "Safe" : "");
+
+ IOHibernateSystemHasSlept();
+
+ evaluateSystemSleepPolicyFinal();
+#else
+ LOG("System Sleep\n");
+#endif
+
+ getPlatform()->sleepKernel();
+
+ // The CPU(s) are off at this point,
+ // Code will resume execution here upon wake.
+
+ clock_get_uptime(&systemWakeTime);
+
+#if HIBERNATION
+ IOHibernateSystemWake();
+#endif
+
+ // sleep transition complete
+ gSleepOrShutdownPending = 0;
+
+ // trip the reset of the calendar clock
+ clock_wakeup_calendar();
+
+#if HIBERNATION
+ LOG("System %sWake\n", gIOHibernateState ? "SafeSleep " : "");
+#endif
+
+ // log system wake
+ getPlatform()->PMLog(kIOPMrootDomainClass, kPMLogSystemWake, 0, 0);
+ lowBatteryCondition = false;
+ lastSleepReason = 0;
+
+ // And start logging the wake event here
+ // TODO: Publish the wakeReason string as an integer
+ details = PMEventDetails::eventDetails(
+ kIOPMEventTypeWake,
+ NULL,
+ 0,
+ kIOReturnSuccess);
+
+ recordAndReleasePMEvent( details );
+
+
+#ifndef __LP64__
+ systemWake();
+#endif
+
+#if defined(__i386__) || defined(__x86_64__)
+ wranglerTickled = false;
+ graphicsSuppressed = false;
+ darkWakePostTickle = false;
+ logGraphicsClamp = true;
+ logWranglerTickle = true;
+ sleepTimerMaintenance = false;
+
+ OSString * wakeType = OSDynamicCast(
+ OSString, getProperty(kIOPMRootDomainWakeTypeKey));
+ OSString * wakeReason = OSDynamicCast(
+ OSString, getProperty(kIOPMRootDomainWakeReasonKey));
+
+ if (wakeType && wakeType->isEqualTo(kIOPMrootDomainWakeTypeLowBattery))
+ {
+ lowBatteryCondition = true;
+ darkWakeMaintenance = true;
+ darkWakeToSleepASAP = true;
+ }
+ else if ((gDarkWakeFlags & kDarkWakeFlagHIDTickleMask) != 0)
+ {
+ OSNumber * hibOptions = OSDynamicCast(
+ OSNumber, getProperty(kIOHibernateOptionsKey));
+
+ if (hibernateAborted ||
+ ((hibOptions &&
+ !(hibOptions->unsigned32BitValue() & kIOHibernateOptionDarkWake))) ||
+ ((_debugWakeSeconds != 0) &&
+ ((gDarkWakeFlags & kDarkWakeFlagAlarmIsDark) == 0)) ||
+ (wakeType && (
+ wakeType->isEqualTo(kIOPMRootDomainWakeTypeUser) ||
+ wakeType->isEqualTo(kIOPMRootDomainWakeTypeAlarm))))
+ {
+ wranglerTickled = true;
+ }
+ else
+ if (wakeType &&
+ wakeType->isEqualTo(kIOPMRootDomainWakeTypeMaintenance))
+ {
+ darkWakeMaintenance = true;
+ darkWakeToSleepASAP = true;
+ }
+ else
+ if (wakeType &&
+ wakeType->isEqualTo(kIOPMRootDomainWakeTypeSleepTimer))
+ {
+ darkWakeMaintenance = true;
+ darkWakeToSleepASAP = true;
+ sleepTimerMaintenance = true;
+ }
+ else
+ {
+ // Unidentified wake source, resume to full wake if debug
+ // alarm is pending.
+
+ if (_debugWakeSeconds && (!wakeReason || wakeReason->isEqualTo("")))
+ wranglerTickled = true;
+ else
+ darkWakeToSleepASAP = true;
+ }
+ }
+ else
+ {
+ // Post a HID tickle immediately - except for maintenance wake.
+
+ if (hibernateAborted || !wakeType ||
+ !wakeType->isEqualTo(kIOPMRootDomainWakeTypeMaintenance))
+ {
+ wranglerTickled = true;
+ }
+ else
+ {
+ darkWakeMaintenance = true;
+ darkWakeToSleepASAP = true;
+ }
+ }
+
+ if (wranglerTickled)
+ reportUserInput();
+ else if (!darkWakeMaintenance)
+ {
+ // Early/late tickle for non-maintenance wake.
+ if (((gDarkWakeFlags & kDarkWakeFlagHIDTickleMask) ==
+ kDarkWakeFlagHIDTickleEarly) ||
+ ((gDarkWakeFlags & kDarkWakeFlagHIDTickleMask) ==
+ kDarkWakeFlagHIDTickleLate))
+ {
+ darkWakePostTickle = true;
+ }
+ }
+#else /* !__i386__ && !__x86_64__ */
+ // stay awake for at least 30 seconds
+ wranglerTickled = true;
+ startIdleSleepTimer(30);
+#endif
+
+ changePowerStateToPriv(ON_STATE);
+ } break;
+
+ case ON_STATE: {
+ bool wasPrevented = childPreventSystemSleep;
+
+ details = PMEventDetails::eventDetails(
+ kIOPMEventTypeWakeDone,
+ NULL,
+ 0,
+ kIOReturnSuccess);
+
+ recordAndReleasePMEvent( details );
+
+ if (previousPowerState != ON_STATE)
+ _debugWakeSeconds = 0;
+
+ // Update childPreventSystemSleep flag using the capability computed
+ // by IOSevice::rebuildChildClampBits().
+
+ childPreventSystemSleep =
+ ((currentCapability() & kIOPMChildClamp2) != 0);
+
+ if (wasPrevented && !childPreventSystemSleep)
+ {
+ evaluatePolicy( kStimulusDarkWakeEvaluate );
+ }
+ } break;
+ }
+}
+
+//******************************************************************************
+// requestPowerDomainState
+//
+// Extend implementation in IOService. Running on PM work loop thread.
+//
+// Examine children desires and initiate idle-sleep if all children are idle,
+// prevent idle and system sleep flags are not set.
+//******************************************************************************
+
+IOReturn IOPMrootDomain::requestPowerDomainState (
+ IOPMPowerFlags childDesire,
+ IOPowerConnection * childConnection,
+ unsigned long specification )
+{
+ OSIterator *iter;
+ OSObject *next;
+ IOPowerConnection *connection;
+ IOPMPowerFlags mergedChildDesire = 0;
+ IOPMPowerFlags editedChildDesire;
+ IOPMPowerFlags thisDesire;
+ bool sleepASAP = false;
+
+ ASSERT_GATED();
+
+ // Disregard disk I/O (anything besides the display wrangler) as a
+ // factor in preventing idle sleep - based on a runtime setting.
+
+ if ((gDarkWakeFlags & kDarkWakeFlagIgnoreDiskIOAlways) &&
+ (kIOPMPreventIdleSleep & childDesire) &&
+ (childConnection != wranglerConnection))
+ {
+ childDesire &= ~kIOPMPreventIdleSleep;
+ }
+
+ // Force the child's input power requirement to 0 unless the prevent
+ // idle-sleep flag is set. Nil input power flags maps to our state 0.
+ // Our power clamp (deviceDesire) clamps the lowest power state at 2.
+
+ editedChildDesire = 0;
+ if (childDesire & kIOPMPreventIdleSleep)
+ editedChildDesire |= (kIOPMPowerOn | kIOPMPreventIdleSleep);
+ if (childDesire & kIOPMPreventSystemSleep)
+ editedChildDesire |= (kIOPMPowerOn | kIOPMPreventSystemSleep);
- // recompute sleepIsSupported and see if all children are asleep
iter = getChildIterator(gIOPowerPlane);
- sleepIsSupported = true;
- if ( iter )
+ if ( iter )
{
- while ( (next = iter->getNextObject()) )
+ while ( (next = iter->getNextObject()) )
{
- if ( (connection = OSDynamicCast(IOPowerConnection,next)) )
+ if ( (connection = OSDynamicCast(IOPowerConnection, next)) )
{
- if ( connection == whichChild )
+ // Ignore child that are in the process of joining.
+ if (connection->getReadyFlag() == false)
+ continue;
+
+ // OR in the child's input power requirements.
+ // Is this connection attached to the child that called
+ // requestPowerDomainState()?
+
+ if (connection == childConnection)
{
- powerRequestFlag += editedDesire;
- if ( desiredState & kIOPMPreventSystemSleep )
- {
- sleepIsSupported = false;
- }
- } else {
- powerRequestFlag += connection->getDesiredDomainState();
- if ( connection->getPreventSystemSleepFlag() )
- {
- sleepIsSupported = false;
- }
+ thisDesire = editedChildDesire;
+ }
+ else
+ {
+ thisDesire = 0;
+ if (connection->getPreventIdleSleepFlag())
+ thisDesire |= (kIOPMPowerOn | kIOPMPreventIdleSleep);
+ if (connection->getPreventSystemSleepFlag())
+ thisDesire |= (kIOPMPowerOn | kIOPMPreventSystemSleep);
+ }
+
+ mergedChildDesire |= thisDesire;
+ if (thisDesire && (kIOLogPMRootDomain & gIOKitDebug))
+ {
+ IOService * child =
+ (IOService *) connection->getChildEntry(gIOPowerPlane);
+ LOG("child %p, noIdle %d, noSleep %d - %s\n",
+ child,
+ ((thisDesire & kIOPMPreventIdleSleep) != 0),
+ ((thisDesire & kIOPMPreventSystemSleep) != 0),
+ child ? child->getName() : "?");
}
}
}
iter->release();
}
-
- if ( (extraSleepDelay == 0) && (powerRequestFlag == 0) )
+
+ DLOG("mergedChildDesire 0x%lx, extraSleepDelay %ld\n",
+ mergedChildDesire, extraSleepDelay);
+
+ if ( !mergedChildDesire && !systemBooting )
{
- sleepASAP = true;
+ if (!wrangler)
+ {
+ changePowerStateToPriv(ON_STATE);
+ if (idleSeconds)
+ {
+ // stay awake for at least idleSeconds
+ startIdleSleepTimer(idleSeconds);
+ }
+ }
+ else if (!extraSleepDelay && !idleSleepTimerPending && !systemDarkWake)
+ {
+ sleepASAP = true;
+ }
}
-
- // this may put the system to sleep
- adjustPowerState();
-
- IOLockUnlock(pm_vars->childLock);
- editedDesire |= desiredState & kIOPMPreventSystemSleep;
+ // Drop our power clamp to SLEEP_STATE when all children became idle,
+ // and system sleep and display sleep slider values are equal.
- return super::requestPowerDomainState(editedDesire,whichChild,specification);
+ adjustPowerState(sleepASAP);
+
+ // If our power clamp has already dropped to SLEEP_STATE, and no child
+ // is keeping us at ON_STATE, then the following will trigger idle sleep.
+
+ return super::requestPowerDomainState(
+ editedChildDesire, childConnection, specification);
}
+//******************************************************************************
+// tellChangeDown
+//
+// Override the superclass implementation to send a different message type.
+//******************************************************************************
+
+bool IOPMrootDomain::tellChangeDown( unsigned long stateNum )
+{
+ DLOG("tellChangeDown %u->%u\n",
+ (uint32_t) getPowerState(), (uint32_t) stateNum);
-//*********************************************************************************
-// getSleepSupported
+ if (SLEEP_STATE == stateNum)
+ {
+ if (!ignoreTellChangeDown)
+ tracePoint( kIOPMTracePointSleepApplications );
+ else
+ tracePoint( kIOPMTracePointSleepPriorityClients );
+ }
+
+ if ((SLEEP_STATE == stateNum) && !ignoreTellChangeDown)
+ {
+ userActivityAtSleep = userActivityCount;
+ hibernateAborted = false;
+ DLOG("tellChangeDown::userActivityAtSleep %d\n", userActivityAtSleep);
+
+ // Direct callout into OSKext so it can disable kext unloads
+ // during sleep/wake to prevent deadlocks.
+ OSKextSystemSleepOrWake( kIOMessageSystemWillSleep );
+
+ IOService::updateConsoleUsers(NULL, kIOMessageSystemWillSleep);
+
+ // Notify platform that sleep has begun
+ getPlatform()->callPlatformFunction(
+ sleepMessagePEFunction, false,
+ (void *)(uintptr_t) kIOMessageSystemWillSleep,
+ NULL, NULL, NULL);
+
+ // Two change downs are sent by IOServicePM. Ignore the 2nd.
+ // But tellClientsWithResponse() must be called for both.
+ ignoreTellChangeDown = true;
+ }
+
+ return super::tellClientsWithResponse( kIOMessageSystemWillSleep );
+}
+
+//******************************************************************************
+// askChangeDown
//
-//*********************************************************************************
+// Override the superclass implementation to send a different message type.
+// This must be idle sleep since we don't ask during any other power change.
+//******************************************************************************
-IOOptionBits IOPMrootDomain::getSleepSupported( void )
+bool IOPMrootDomain::askChangeDown( unsigned long stateNum )
{
- return( platformSleepSupport );
+ DLOG("askChangeDown %u->%u\n",
+ (uint32_t) getPowerState(), (uint32_t) stateNum);
+
+ // Don't log for dark wake entry
+ if (kSystemTransitionSleep == _systemTransitionType)
+ tracePoint( kIOPMTracePointSleepApplications );
+
+ return super::tellClientsWithResponse( kIOMessageCanSystemSleep );
}
+//******************************************************************************
+// askChangeDownDone
+//
+// Called by PM after all apps have responded to kIOMessageCanSystemSleep.
+// pmconfigd may create a deny sleep assertion before ack'ing.
+//******************************************************************************
-//*********************************************************************************
-// tellChangeDown
+void IOPMrootDomain::askChangeDownDone(
+ IOPMPowerChangeFlags * inOutChangeFlags, bool * cancel )
+{
+ DLOG("askChangeDownDone(0x%x, %u) type %x, cap %x->%x\n",
+ *inOutChangeFlags, *cancel,
+ _systemTransitionType,
+ _currentCapability, _pendingCapability);
+
+ if ((false == *cancel) && (kSystemTransitionSleep == _systemTransitionType))
+ {
+ // Dark->Sleep transition.
+ // Check if there are any deny sleep assertions.
+ // Full->Dark transition is never cancelled.
+
+ if (!checkSystemCanSleep(true))
+ {
+ // Cancel dark wake to sleep transition.
+ // Must re-scan assertions upon entering dark wake.
+
+ *cancel = true;
+ DLOG("cancel dark->sleep\n");
+ }
+ }
+}
+
+//******************************************************************************
+// tellNoChangeDown
+//
+// Notify registered applications and kernel clients that we are not dropping
+// power.
//
// We override the superclass implementation so we can send a different message
// type to the client or application being notified.
-//*********************************************************************************
+//
+// This must be a vetoed idle sleep, since no other power change can be vetoed.
+//******************************************************************************
-bool IOPMrootDomain::tellChangeDown ( unsigned long stateNum )
+void IOPMrootDomain::tellNoChangeDown( unsigned long stateNum )
{
- switch ( stateNum ) {
- case DOZE_STATE:
- case SLEEP_STATE:
- return super::tellClientsWithResponse(kIOMessageSystemWillSleep);
- case RESTART_STATE:
- return super::tellClientsWithResponse(kIOMessageSystemWillRestart);
- case OFF_STATE:
- return super::tellClientsWithResponse(kIOMessageSystemWillPowerOff);
+ DLOG("tellNoChangeDown %u->%u\n",
+ (uint32_t) getPowerState(), (uint32_t) stateNum);
+
+ if (idleSeconds && !wrangler)
+ {
+ // stay awake for at least idleSeconds
+ startIdleSleepTimer(idleSeconds);
}
- // this shouldn't execute
- return super::tellChangeDown(stateNum);
+ return tellClients( kIOMessageSystemWillNotSleep );
}
-
-//*********************************************************************************
-// askChangeDown
+//******************************************************************************
+// tellChangeUp
+//
+// Notify registered applications and kernel clients that we are raising power.
//
// We override the superclass implementation so we can send a different message
// type to the client or application being notified.
+//******************************************************************************
+
+void IOPMrootDomain::tellChangeUp( unsigned long stateNum )
+{
+ OSData *publishPMStats = NULL;
+
+ DLOG("tellChangeUp %u->%u\n",
+ (uint32_t) getPowerState(), (uint32_t) stateNum);
+
+ ignoreTellChangeDown = false;
+
+ if ( stateNum == ON_STATE )
+ {
+ // Direct callout into OSKext so it can disable kext unloads
+ // during sleep/wake to prevent deadlocks.
+ OSKextSystemSleepOrWake( kIOMessageSystemHasPoweredOn );
+
+ // Notify platform that sleep was cancelled or resumed.
+ getPlatform()->callPlatformFunction(
+ sleepMessagePEFunction, false,
+ (void *)(uintptr_t) kIOMessageSystemHasPoweredOn,
+ NULL, NULL, NULL);
+
+ if (getPowerState() == ON_STATE)
+ {
+ // this is a quick wake from aborted sleep
+ if (idleSeconds && !wrangler)
+ {
+ // stay awake for at least idleSeconds
+ startIdleSleepTimer(idleSeconds);
+ }
+ tellClients( kIOMessageSystemWillPowerOn );
+ }
+
+ tracePoint( kIOPMTracePointWakeApplications );
+ publishPMStats = OSData::withBytes(&pmStats, sizeof(pmStats));
+ setProperty(kIOPMSleepStatisticsKey, publishPMStats);
+ publishPMStats->release();
+ bzero(&pmStats, sizeof(pmStats));
+
+ if (pmStatsAppResponses)
+ {
+ setProperty(kIOPMSleepStatisticsAppsKey, pmStatsAppResponses);
+ pmStatsAppResponses->release();
+ pmStatsAppResponses = OSArray::withCapacity(5);
+ }
+
+ tellClients( kIOMessageSystemHasPoweredOn );
+ }
+}
+
+//******************************************************************************
+// sysPowerDownHandler
//
-// This must be idle sleep since we don't ask apps during any other power change.
-//*********************************************************************************
+// Perform a vfs sync before system sleep.
+//******************************************************************************
+
+IOReturn IOPMrootDomain::sysPowerDownHandler(
+ void * target, void * refCon,
+ UInt32 messageType, IOService * service,
+ void * messageArgs, vm_size_t argSize )
+{
+ IOReturn ret;
+
+ DLOG("sysPowerDownHandler message %s\n", getIOMessageString(messageType));
+
+ if (!gRootDomain)
+ return kIOReturnUnsupported;
+
+ if (messageType == kIOMessageSystemCapabilityChange)
+ {
+ IOPMSystemCapabilityChangeParameters * params =
+ (IOPMSystemCapabilityChangeParameters *) messageArgs;
+
+ // Interested applications have been notified of an impending power
+ // change and have acked (when applicable).
+ // This is our chance to save whatever state we can before powering
+ // down.
+ // We call sync_internal defined in xnu/bsd/vfs/vfs_syscalls.c,
+ // via callout
+
+ DLOG("sysPowerDownHandler cap %x -> %x (flags %x)\n",
+ params->fromCapabilities, params->toCapabilities,
+ params->changeFlags);
+
+ if ((params->changeFlags & kIOPMSystemCapabilityWillChange) &&
+ (params->fromCapabilities & kIOPMSystemCapabilityCPU) &&
+ (params->toCapabilities & kIOPMSystemCapabilityCPU) == 0)
+ {
+ // We will ack within 20 seconds
+ params->maxWaitForReply = 20 * 1000 * 1000;
+#if HIBERNATION
+ gRootDomain->evaluateSystemSleepPolicyEarly();
+
+ // add in time we could spend freeing pages
+ if (gRootDomain->hibernateMode && !gRootDomain->hibernateDisabled)
+ {
+ params->maxWaitForReply = kCapabilityClientMaxWait;
+ }
+ DLOG("sysPowerDownHandler timeout %d s\n", (int) (params->maxWaitForReply / 1000 / 1000));
+#endif
+
+ if ( !OSCompareAndSwap( 0, 1, &gSleepOrShutdownPending ) )
+ {
+ // Purposely delay the ack and hope that shutdown occurs quickly.
+ // Another option is not to schedule the thread and wait for
+ // ack timeout...
+ AbsoluteTime deadline;
+ clock_interval_to_deadline( 30, kSecondScale, &deadline );
+ thread_call_enter1_delayed(
+ gRootDomain->diskSyncCalloutEntry,
+ (thread_call_param_t) params->notifyRef,
+ deadline );
+ }
+ else
+ thread_call_enter1(
+ gRootDomain->diskSyncCalloutEntry,
+ (thread_call_param_t) params->notifyRef);
+ }
+#if HIBERNATION
+ else
+ if ((params->changeFlags & kIOPMSystemCapabilityDidChange) &&
+ (params->toCapabilities & kIOPMSystemCapabilityCPU) &&
+ (params->fromCapabilities & kIOPMSystemCapabilityCPU) == 0)
+ {
+ // We will ack within 110 seconds
+ params->maxWaitForReply = 110 * 1000 * 1000;
+
+ thread_call_enter1(
+ gRootDomain->diskSyncCalloutEntry,
+ (thread_call_param_t) params->notifyRef);
+ }
+#endif
+ ret = kIOReturnSuccess;
+ }
+
+ return ret;
+}
+
+//******************************************************************************
+// handleQueueSleepWakeUUID
+//
+// Called from IOPMrootDomain when we're initiating a sleep,
+// or indirectly from PM configd when PM decides to clear the UUID.
+// PM clears the UUID several minutes after successful wake from sleep,
+// so that we might associate App spindumps with the immediately previous
+// sleep/wake.
+//
+// @param obj has a retain on it. We're responsible for releasing that retain.
+//******************************************************************************
+
+void IOPMrootDomain::handleQueueSleepWakeUUID(OSObject *obj)
+{
+ OSString *str = NULL;
+
+ if (kOSBooleanFalse == obj)
+ {
+ handlePublishSleepWakeUUID(NULL);
+ }
+ else if ((str = OSDynamicCast(OSString, obj)))
+ {
+ // This branch caches the UUID for an upcoming sleep/wake
+ if (queuedSleepWakeUUIDString) {
+ queuedSleepWakeUUIDString->release();
+ queuedSleepWakeUUIDString = NULL;
+ }
+ queuedSleepWakeUUIDString = str;
+ queuedSleepWakeUUIDString->retain();
+
+ DLOG("SleepWake UUID queued: %s\n", queuedSleepWakeUUIDString->getCStringNoCopy());
+ }
+
+ if (obj) {
+ obj->release();
+ }
+ return;
+
+}
+//******************************************************************************
+// handlePublishSleepWakeUUID
+//
+// Called from IOPMrootDomain when we're initiating a sleep,
+// or indirectly from PM configd when PM decides to clear the UUID.
+// PM clears the UUID several minutes after successful wake from sleep,
+// so that we might associate App spindumps with the immediately previous
+// sleep/wake.
+//******************************************************************************
+
+void IOPMrootDomain::handlePublishSleepWakeUUID( bool shouldPublish )
+{
+ ASSERT_GATED();
+
+ /*
+ * Clear the current UUID
+ */
+ if (gSleepWakeUUIDIsSet)
+ {
+ DLOG("SleepWake UUID cleared\n");
+
+ OSString *UUIDstring = NULL;
+
+ if (timeline &&
+ (UUIDstring = OSDynamicCast(OSString, getProperty(kIOPMSleepWakeUUIDKey))))
+ {
+ PMEventDetails *details = PMEventDetails::eventDetails(kIOPMEventTypeUUIDClear,
+ UUIDstring->getCStringNoCopy(), NULL, 0);
+ if (details) {
+ timeline->recordSystemPowerEvent( details );
+ details->release();
+ }
+ timeline->setNumEventsLoggedThisPeriod(0);
+ }
-bool IOPMrootDomain::askChangeDown ( unsigned long )
+ gSleepWakeUUIDIsSet = false;
+
+ removeProperty(kIOPMSleepWakeUUIDKey);
+ messageClients(kIOPMMessageSleepWakeUUIDChange, kIOPMMessageSleepWakeUUIDCleared);
+ }
+
+ /*
+ * Optionally, publish a new UUID
+ */
+ if (queuedSleepWakeUUIDString && shouldPublish) {
+
+ OSString *publishThisUUID = NULL;
+
+ publishThisUUID = queuedSleepWakeUUIDString;
+ publishThisUUID->retain();
+
+ if (timeline) {
+ PMEventDetails *details;
+ details = PMEventDetails::eventDetails(kIOPMEventTypeUUIDSet,
+ publishThisUUID->getCStringNoCopy(), NULL, 0);
+ if (details) {
+ timeline->recordSystemPowerEvent( details );
+ details->release();
+ }
+ }
+
+ if (publishThisUUID)
+ {
+ setProperty(kIOPMSleepWakeUUIDKey, publishThisUUID);
+ publishThisUUID->release();
+ }
+
+ gSleepWakeUUIDIsSet = true;
+ messageClients(kIOPMMessageSleepWakeUUIDChange, kIOPMMessageSleepWakeUUIDSet);
+
+ queuedSleepWakeUUIDString->release();
+ queuedSleepWakeUUIDString = NULL;
+ }
+}
+
+//******************************************************************************
+// changePowerStateTo & changePowerStateToPriv
+//
+// Override of these methods for logging purposes.
+//******************************************************************************
+
+IOReturn IOPMrootDomain::changePowerStateTo( unsigned long ordinal )
+{
+ return kIOReturnUnsupported; // ignored
+}
+
+IOReturn IOPMrootDomain::changePowerStateToPriv( unsigned long ordinal )
+{
+ DLOG("changePowerStateToPriv(%lu)\n", ordinal);
+
+ if ((ordinal != ON_STATE) && (ordinal != SLEEP_STATE))
+ return kIOReturnUnsupported;
+
+ return super::changePowerStateToPriv(ordinal);
+}
+
+//******************************************************************************
+// activity detect
+//
+//******************************************************************************
+
+bool IOPMrootDomain::activitySinceSleep(void)
+{
+ return (userActivityCount != userActivityAtSleep);
+}
+
+bool IOPMrootDomain::abortHibernation(void)
+{
+ bool ret = activitySinceSleep();
+
+ if (ret && !hibernateAborted)
+ {
+ DLOG("activitySinceSleep ABORT [%d, %d]\n", userActivityCount, userActivityAtSleep);
+ hibernateAborted = true;
+ }
+ return (ret);
+}
+
+extern "C" int
+hibernate_should_abort(void)
+{
+ if (gRootDomain)
+ return (gRootDomain->abortHibernation());
+ else
+ return (0);
+}
+
+//******************************************************************************
+// sleepOnClamshellClosed
+//
+// contains the logic to determine if the system should sleep when the clamshell
+// is closed.
+//******************************************************************************
+
+bool IOPMrootDomain::shouldSleepOnClamshellClosed( void )
+{
+ if (!clamshellExists)
+ return false;
+
+ DLOG("clamshell closed %d, disabled %d, desktopMode %d, ac %d\n",
+ clamshellClosed, clamshellDisabled, desktopMode, acAdaptorConnected);
+
+ return ( !clamshellDisabled && !(desktopMode && acAdaptorConnected) );
+}
+
+void IOPMrootDomain::sendClientClamshellNotification( void )
+{
+ /* Only broadcast clamshell alert if clamshell exists. */
+ if (!clamshellExists)
+ return;
+
+ setProperty(kAppleClamshellStateKey,
+ clamshellClosed ? kOSBooleanTrue : kOSBooleanFalse);
+
+ setProperty(kAppleClamshellCausesSleepKey,
+ shouldSleepOnClamshellClosed() ? kOSBooleanTrue : kOSBooleanFalse);
+
+ /* Argument to message is a bitfiel of
+ * ( kClamshellStateBit | kClamshellSleepBit )
+ */
+ messageClients(kIOPMMessageClamshellStateChange,
+ (void *) ( (clamshellClosed ? kClamshellStateBit : 0)
+ | ( shouldSleepOnClamshellClosed() ? kClamshellSleepBit : 0)) );
+}
+
+//******************************************************************************
+// getSleepSupported
+//
+// Deprecated
+//******************************************************************************
+
+IOOptionBits IOPMrootDomain::getSleepSupported( void )
+{
+ return( platformSleepSupport );
+}
+
+//******************************************************************************
+// setSleepSupported
+//
+// Deprecated
+//******************************************************************************
+
+void IOPMrootDomain::setSleepSupported( IOOptionBits flags )
+{
+ DLOG("setSleepSupported(%x)\n", (uint32_t) flags);
+ OSBitOrAtomic(flags, &platformSleepSupport);
+}
+
+//******************************************************************************
+// wakeFromDoze
+//
+// Deprecated.
+//******************************************************************************
+
+void IOPMrootDomain::wakeFromDoze( void )
+{
+ // Preserve symbol for familes (IOUSBFamily and IOGraphics)
+}
+
+// MARK: -
+// MARK: Features
+
+//******************************************************************************
+// publishFeature
+//
+// Adds a new feature to the supported features dictionary
+//******************************************************************************
+
+void IOPMrootDomain::publishFeature( const char * feature )
+{
+ publishFeature(feature, kRD_AllPowerSources, NULL);
+}
+
+//******************************************************************************
+// publishFeature (with supported power source specified)
+//
+// Adds a new feature to the supported features dictionary
+//******************************************************************************
+
+void IOPMrootDomain::publishFeature(
+ const char *feature,
+ uint32_t supportedWhere,
+ uint32_t *uniqueFeatureID)
+{
+ static uint16_t next_feature_id = 500;
+
+ OSNumber *new_feature_data = NULL;
+ OSNumber *existing_feature = NULL;
+ OSArray *existing_feature_arr = NULL;
+ OSObject *osObj = NULL;
+ uint32_t feature_value = 0;
+
+ supportedWhere &= kRD_AllPowerSources; // mask off any craziness!
+
+ if(!supportedWhere) {
+ // Feature isn't supported anywhere!
+ return;
+ }
+
+ if(next_feature_id > 5000) {
+ // Far, far too many features!
+ return;
+ }
+
+ if(featuresDictLock) IOLockLock(featuresDictLock);
+
+ OSDictionary *features =
+ (OSDictionary *) getProperty(kRootDomainSupportedFeatures);
+
+ // Create new features dict if necessary
+ if ( features && OSDynamicCast(OSDictionary, features)) {
+ features = OSDictionary::withDictionary(features);
+ } else {
+ features = OSDictionary::withCapacity(1);
+ }
+
+ // Create OSNumber to track new feature
+
+ next_feature_id += 1;
+ if( uniqueFeatureID ) {
+ // We don't really mind if the calling kext didn't give us a place
+ // to stash their unique id. Many kexts don't plan to unload, and thus
+ // have no need to remove themselves later.
+ *uniqueFeatureID = next_feature_id;
+ }
+
+ feature_value = (uint32_t)next_feature_id;
+ feature_value <<= 16;
+ feature_value += supportedWhere;
+
+ new_feature_data = OSNumber::withNumber(
+ (unsigned long long)feature_value, 32);
+
+ // Does features object already exist?
+ if( (osObj = features->getObject(feature)) )
+ {
+ if(( existing_feature = OSDynamicCast(OSNumber, osObj) ))
+ {
+ // We need to create an OSArray to hold the now 2 elements.
+ existing_feature_arr = OSArray::withObjects(
+ (const OSObject **)&existing_feature, 1, 2);
+ } else if(( existing_feature_arr = OSDynamicCast(OSArray, osObj) ))
+ {
+ // Add object to existing array
+ existing_feature_arr = OSArray::withArray(
+ existing_feature_arr,
+ existing_feature_arr->getCount() + 1);
+ }
+
+ if (existing_feature_arr)
+ {
+ existing_feature_arr->setObject(new_feature_data);
+ features->setObject(feature, existing_feature_arr);
+ existing_feature_arr->release();
+ existing_feature_arr = 0;
+ }
+ } else {
+ // The easy case: no previously existing features listed. We simply
+ // set the OSNumber at key 'feature' and we're on our way.
+ features->setObject(feature, new_feature_data);
+ }
+
+ new_feature_data->release();
+
+ setProperty(kRootDomainSupportedFeatures, features);
+
+ features->release();
+
+ if(featuresDictLock) IOLockUnlock(featuresDictLock);
+
+ // Notify EnergySaver and all those in user space so they might
+ // re-populate their feature specific UI
+ if(pmPowerStateQueue) {
+ pmPowerStateQueue->submitPowerEvent( kPowerEventFeatureChanged );
+ }
+}
+
+//******************************************************************************
+// removePublishedFeature
+//
+// Removes previously published feature
+//******************************************************************************
+
+IOReturn IOPMrootDomain::removePublishedFeature( uint32_t removeFeatureID )
+{
+ IOReturn ret = kIOReturnError;
+ uint32_t feature_value = 0;
+ uint16_t feature_id = 0;
+ bool madeAChange = false;
+
+ OSSymbol *dictKey = NULL;
+ OSCollectionIterator *dictIterator = NULL;
+ OSArray *arrayMember = NULL;
+ OSNumber *numberMember = NULL;
+ OSObject *osObj = NULL;
+ OSNumber *osNum = NULL;
+ OSArray *arrayMemberCopy;
+
+ if(featuresDictLock) IOLockLock(featuresDictLock);
+
+ OSDictionary *features =
+ (OSDictionary *) getProperty(kRootDomainSupportedFeatures);
+
+ if ( features && OSDynamicCast(OSDictionary, features) )
+ {
+ // Any modifications to the dictionary are made to the copy to prevent
+ // races & crashes with userland clients. Dictionary updated
+ // automically later.
+ features = OSDictionary::withDictionary(features);
+ } else {
+ features = NULL;
+ ret = kIOReturnNotFound;
+ goto exit;
+ }
+
+ // We iterate 'features' dictionary looking for an entry tagged
+ // with 'removeFeatureID'. If found, we remove it from our tracking
+ // structures and notify the OS via a general interest message.
+
+ dictIterator = OSCollectionIterator::withCollection(features);
+ if(!dictIterator) {
+ goto exit;
+ }
+
+ while( (dictKey = OSDynamicCast(OSSymbol, dictIterator->getNextObject())) )
+ {
+ osObj = features->getObject(dictKey);
+
+ // Each Feature is either tracked by an OSNumber
+ if( osObj && (numberMember = OSDynamicCast(OSNumber, osObj)) )
+ {
+ feature_value = numberMember->unsigned32BitValue();
+ feature_id = (uint16_t)(feature_value >> 16);
+
+ if( feature_id == (uint16_t)removeFeatureID )
+ {
+ // Remove this node
+ features->removeObject(dictKey);
+ madeAChange = true;
+ break;
+ }
+
+ // Or tracked by an OSArray of OSNumbers
+ } else if( osObj && (arrayMember = OSDynamicCast(OSArray, osObj)) )
+ {
+ unsigned int arrayCount = arrayMember->getCount();
+
+ for(unsigned int i=0; i<arrayCount; i++)
+ {
+ osNum = OSDynamicCast(OSNumber, arrayMember->getObject(i));
+ if(!osNum) {
+ continue;
+ }
+
+ feature_value = osNum->unsigned32BitValue();
+ feature_id = (uint16_t)(feature_value >> 16);
+
+ if( feature_id == (uint16_t)removeFeatureID )
+ {
+ // Remove this node
+ if( 1 == arrayCount ) {
+ // If the array only contains one element, remove
+ // the whole thing.
+ features->removeObject(dictKey);
+ } else {
+ // Otherwise remove the element from a copy of the array.
+ arrayMemberCopy = OSArray::withArray(arrayMember);
+ if (arrayMemberCopy)
+ {
+ arrayMemberCopy->removeObject(i);
+ features->setObject(dictKey, arrayMemberCopy);
+ arrayMemberCopy->release();
+ }
+ }
+
+ madeAChange = true;
+ break;
+ }
+ }
+ }
+ }
+
+ dictIterator->release();
+
+ if( madeAChange )
+ {
+ ret = kIOReturnSuccess;
+
+ setProperty(kRootDomainSupportedFeatures, features);
+
+ // Notify EnergySaver and all those in user space so they might
+ // re-populate their feature specific UI
+ if(pmPowerStateQueue) {
+ pmPowerStateQueue->submitPowerEvent( kPowerEventFeatureChanged );
+ }
+ } else {
+ ret = kIOReturnNotFound;
+ }
+
+exit:
+ if(features) features->release();
+ if(featuresDictLock) IOLockUnlock(featuresDictLock);
+ return ret;
+}
+
+//******************************************************************************
+// setPMSetting (private)
+//
+// Internal helper to relay PM settings changes from user space to individual
+// drivers. Should be called only by IOPMrootDomain::setProperties.
+//******************************************************************************
+
+IOReturn IOPMrootDomain::setPMSetting(
+ const OSSymbol *type,
+ OSObject *object )
+{
+ PMSettingCallEntry *entries = 0;
+ OSArray *chosen = 0;
+ const OSArray *array;
+ PMSettingObject *pmso;
+ thread_t thisThread;
+ int i, j, count, capacity;
+
+ if (NULL == type)
+ return kIOReturnBadArgument;
+
+ PMSETTING_LOCK();
+
+ // Update settings dict so changes are visible from copyPMSetting().
+ fPMSettingsDict->setObject(type, object);
+
+ // Prep all PMSetting objects with the given 'type' for callout.
+ array = (const OSArray *) settingsCallbacks->getObject(type);
+ if (!array || ((capacity = array->getCount()) == 0))
+ goto unlock_exit;
+
+ // Array to retain PMSetting objects targeted for callout.
+ chosen = OSArray::withCapacity(capacity);
+ if (!chosen)
+ goto unlock_exit; // error
+
+ entries = IONew(PMSettingCallEntry, capacity);
+ if (!entries)
+ goto unlock_exit; // error
+ memset(entries, 0, sizeof(PMSettingCallEntry) * capacity);
+
+ thisThread = current_thread();
+
+ for (i = 0, j = 0; i<capacity; i++)
+ {
+ pmso = (PMSettingObject *) array->getObject(i);
+ if (pmso->disabled)
+ continue;
+ entries[j].thread = thisThread;
+ queue_enter(&pmso->calloutQueue, &entries[j], PMSettingCallEntry *, link);
+ chosen->setObject(pmso);
+ j++;
+ }
+ count = j;
+ if (!count)
+ goto unlock_exit;
+
+ PMSETTING_UNLOCK();
+
+ // Call each pmso in the chosen array.
+ for (i=0; i<count; i++)
+ {
+ pmso = (PMSettingObject *) chosen->getObject(i);
+ pmso->dispatchPMSetting(type, object);
+ }
+
+ PMSETTING_LOCK();
+ for (i=0; i<count; i++)
+ {
+ pmso = (PMSettingObject *) chosen->getObject(i);
+ queue_remove(&pmso->calloutQueue, &entries[i], PMSettingCallEntry *, link);
+ if (pmso->waitThread)
+ {
+ PMSETTING_WAKEUP(pmso);
+ }
+ }
+unlock_exit:
+ PMSETTING_UNLOCK();
+
+ if (chosen) chosen->release();
+ if (entries) IODelete(entries, PMSettingCallEntry, capacity);
+
+ return kIOReturnSuccess;
+}
+
+//******************************************************************************
+// copyPMSetting (public)
+//
+// Allows kexts to safely read setting values, without being subscribed to
+// notifications.
+//******************************************************************************
+
+OSObject * IOPMrootDomain::copyPMSetting(
+ OSSymbol *whichSetting)
+{
+ OSObject *obj = NULL;
+
+ if(!whichSetting) return NULL;
+
+ PMSETTING_LOCK();
+ obj = fPMSettingsDict->getObject(whichSetting);
+ if(obj) {
+ obj->retain();
+ }
+ PMSETTING_UNLOCK();
+
+ return obj;
+}
+
+//******************************************************************************
+// registerPMSettingController (public)
+//
+// direct wrapper to registerPMSettingController with uint32_t power source arg
+//******************************************************************************
+
+IOReturn IOPMrootDomain::registerPMSettingController(
+ const OSSymbol * settings[],
+ IOPMSettingControllerCallback func,
+ OSObject *target,
+ uintptr_t refcon,
+ OSObject **handle)
+{
+ return registerPMSettingController(
+ settings,
+ (kIOPMSupportedOnAC | kIOPMSupportedOnBatt | kIOPMSupportedOnUPS),
+ func, target, refcon, handle);
+}
+
+//******************************************************************************
+// registerPMSettingController (public)
+//
+// Kexts may register for notifications when a particular setting is changed.
+// A list of settings is available in IOPM.h.
+// Arguments:
+// * settings - An OSArray containing OSSymbols. Caller should populate this
+// array with a list of settings caller wants notifications from.
+// * func - A C function callback of the type IOPMSettingControllerCallback
+// * target - caller may provide an OSObject *, which PM will pass as an
+// target to calls to "func"
+// * refcon - caller may provide an void *, which PM will pass as an
+// argument to calls to "func"
+// * handle - This is a return argument. We will populate this pointer upon
+// call success. Hold onto this and pass this argument to
+// IOPMrootDomain::deRegisterPMSettingCallback when unloading your kext
+// Returns:
+// kIOReturnSuccess on success
+//******************************************************************************
+
+IOReturn IOPMrootDomain::registerPMSettingController(
+ const OSSymbol * settings[],
+ uint32_t supportedPowerSources,
+ IOPMSettingControllerCallback func,
+ OSObject *target,
+ uintptr_t refcon,
+ OSObject **handle)
+{
+ PMSettingObject *pmso = NULL;
+ OSObject *pmsh = NULL;
+ OSArray *list = NULL;
+ int i;
+
+ if (NULL == settings ||
+ NULL == func ||
+ NULL == handle)
+ {
+ return kIOReturnBadArgument;
+ }
+
+ pmso = PMSettingObject::pmSettingObject(
+ (IOPMrootDomain *) this, func, target,
+ refcon, supportedPowerSources, settings, &pmsh);
+
+ if (!pmso) {
+ *handle = NULL;
+ return kIOReturnInternalError;
+ }
+
+ PMSETTING_LOCK();
+ for (i=0; settings[i]; i++)
+ {
+ list = (OSArray *) settingsCallbacks->getObject(settings[i]);
+ if (!list) {
+ // New array of callbacks for this setting
+ list = OSArray::withCapacity(1);
+ settingsCallbacks->setObject(settings[i], list);
+ list->release();
+ }
+
+ // Add caller to the callback list
+ list->setObject(pmso);
+ }
+ PMSETTING_UNLOCK();
+
+ // Return handle to the caller, the setting object is private.
+ *handle = pmsh;
+
+ return kIOReturnSuccess;
+}
+
+//******************************************************************************
+// deregisterPMSettingObject (private)
+//
+// Only called from PMSettingObject.
+//******************************************************************************
+
+void IOPMrootDomain::deregisterPMSettingObject( PMSettingObject * pmso )
+{
+ thread_t thisThread = current_thread();
+ PMSettingCallEntry *callEntry;
+ OSCollectionIterator *iter;
+ OSSymbol *sym;
+ OSArray *array;
+ int index;
+ bool wait;
+
+ PMSETTING_LOCK();
+
+ pmso->disabled = true;
+
+ // Wait for all callout threads to finish.
+ do {
+ wait = false;
+ queue_iterate(&pmso->calloutQueue, callEntry, PMSettingCallEntry *, link)
+ {
+ if (callEntry->thread != thisThread)
+ {
+ wait = true;
+ break;
+ }
+ }
+ if (wait)
+ {
+ assert(0 == pmso->waitThread);
+ pmso->waitThread = thisThread;
+ PMSETTING_WAIT(pmso);
+ pmso->waitThread = 0;
+ }
+ } while (wait);
+
+ // Search each PM settings array in the kernel.
+ iter = OSCollectionIterator::withCollection(settingsCallbacks);
+ if (iter)
+ {
+ while ((sym = OSDynamicCast(OSSymbol, iter->getNextObject())))
+ {
+ array = (OSArray *) settingsCallbacks->getObject(sym);
+ index = array->getNextIndexOfObject(pmso, 0);
+ if (-1 != index) {
+ array->removeObject(index);
+ }
+ }
+ iter->release();
+ }
+
+ PMSETTING_UNLOCK();
+
+ pmso->release();
+}
+
+//******************************************************************************
+// informCPUStateChange
+//
+// Call into PM CPU code so that CPU power savings may dynamically adjust for
+// running on battery, with the lid closed, etc.
+//
+// informCPUStateChange is a no-op on non x86 systems
+// only x86 has explicit support in the IntelCPUPowerManagement kext
+//******************************************************************************
+
+void IOPMrootDomain::informCPUStateChange(
+ uint32_t type,
+ uint32_t value )
+{
+#if defined(__i386__) || defined(__x86_64__)
+
+ pmioctlVariableInfo_t varInfoStruct;
+ int pmCPUret = 0;
+ const char *varNameStr = NULL;
+ int32_t *varIndex = NULL;
+
+ if (kInformAC == type) {
+ varNameStr = kIOPMRootDomainBatPowerCString;
+ varIndex = &idxPMCPULimitedPower;
+ } else if (kInformLid == type) {
+ varNameStr = kIOPMRootDomainLidCloseCString;
+ varIndex = &idxPMCPUClamshell;
+ } else {
+ return;
+ }
+
+ // Set the new value!
+ // pmCPUControl will assign us a new ID if one doesn't exist yet
+ bzero(&varInfoStruct, sizeof(pmioctlVariableInfo_t));
+ varInfoStruct.varID = *varIndex;
+ varInfoStruct.varType = vBool;
+ varInfoStruct.varInitValue = value;
+ varInfoStruct.varCurValue = value;
+ strncpy( (char *)varInfoStruct.varName,
+ (const char *)varNameStr,
+ strlen(varNameStr) + 1 );
+
+ // Set!
+ pmCPUret = pmCPUControl( PMIOCSETVARINFO, (void *)&varInfoStruct );
+
+ // pmCPU only assigns numerical id's when a new varName is specified
+ if ((0 == pmCPUret)
+ && (*varIndex == kCPUUnknownIndex))
+ {
+ // pmCPUControl has assigned us a new variable ID.
+ // Let's re-read the structure we just SET to learn that ID.
+ pmCPUret = pmCPUControl( PMIOCGETVARNAMEINFO, (void *)&varInfoStruct );
+
+ if (0 == pmCPUret)
+ {
+ // Store it in idxPMCPUClamshell or idxPMCPULimitedPower
+ *varIndex = varInfoStruct.varID;
+ }
+ }
+
+ return;
+
+#endif /* __i386__ || __x86_64__ */
+}
+
+// MARK: -
+// MARK: Deep Sleep Policy
+
+#if HIBERNATION
+
+//******************************************************************************
+// evaluateSystemSleepPolicy
+//******************************************************************************
+
+struct IOPMSystemSleepPolicyEntry
+{
+ uint32_t factorMask;
+ uint32_t factorBits;
+ uint32_t sleepFlags;
+ uint32_t wakeEvents;
+};
+
+struct IOPMSystemSleepPolicyTable
+{
+ uint8_t signature[4];
+ uint16_t version;
+ uint16_t entryCount;
+ IOPMSystemSleepPolicyEntry entries[];
+};
+
+enum {
+ kIOPMSleepFactorSleepTimerWake = 0x00000001,
+ kIOPMSleepFactorLidOpen = 0x00000002,
+ kIOPMSleepFactorACPower = 0x00000004,
+ kIOPMSleepFactorLowBattery = 0x00000008,
+ kIOPMSleepFactorDeepSleepNoDelay = 0x00000010,
+ kIOPMSleepFactorDeepSleepDemand = 0x00000020,
+ kIOPMSleepFactorDeepSleepDisable = 0x00000040,
+ kIOPMSleepFactorUSBExternalDevice = 0x00000080,
+ kIOPMSleepFactorBluetoothHIDDevice = 0x00000100,
+ kIOPMSleepFactorExternalMediaMounted = 0x00000200,
+ kIOPMSleepFactorDriverAssertBit5 = 0x00000400, /* Reserved for ThunderBolt */
+ kIOPMSleepFactorDriverAssertBit6 = 0x00000800,
+ kIOPMSleepFactorDriverAssertBit7 = 0x00001000
+};
+
+bool IOPMrootDomain::evaluateSystemSleepPolicy( IOPMSystemSleepParameters * p )
+{
+ const IOPMSystemSleepPolicyTable * pt;
+ OSObject * prop = 0;
+ OSData * policyData;
+ uint32_t currentFactors;
+ uint32_t deepSleepDelay = 0;
+ bool success = false;
+
+ if (getProperty(kIOPMDeepSleepEnabledKey) != kOSBooleanTrue)
+ return false;
+
+ getSleepOption(kIOPMDeepSleepDelayKey, &deepSleepDelay);
+
+ prop = getServiceRoot()->copyProperty(kIOPlatformSystemSleepPolicyKey);
+ if (!prop)
+ return false;
+
+ policyData = OSDynamicCast(OSData, prop);
+ if (!policyData ||
+ (policyData->getLength() < sizeof(IOPMSystemSleepPolicyTable)))
+ {
+ goto done;
+ }
+
+ pt = (const IOPMSystemSleepPolicyTable *) policyData->getBytesNoCopy();
+ if ((pt->signature[0] != 'S') ||
+ (pt->signature[1] != 'L') ||
+ (pt->signature[2] != 'P') ||
+ (pt->signature[3] != 'T') ||
+ (pt->version != 1) ||
+ (pt->entryCount == 0))
+ {
+ goto done;
+ }
+
+ if ((policyData->getLength() - sizeof(IOPMSystemSleepPolicyTable)) !=
+ (sizeof(IOPMSystemSleepPolicyEntry) * pt->entryCount))
+ {
+ goto done;
+ }
+
+ currentFactors = 0;
+ if (getPMAssertionLevel(kIOPMDriverAssertionUSBExternalDeviceBit) !=
+ kIOPMDriverAssertionLevelOff)
+ currentFactors |= kIOPMSleepFactorUSBExternalDevice;
+ if (getPMAssertionLevel(kIOPMDriverAssertionBluetoothHIDDevicePairedBit) !=
+ kIOPMDriverAssertionLevelOff)
+ currentFactors |= kIOPMSleepFactorBluetoothHIDDevice;
+ if (getPMAssertionLevel(kIOPMDriverAssertionExternalMediaMountedBit) !=
+ kIOPMDriverAssertionLevelOff)
+ currentFactors |= kIOPMSleepFactorExternalMediaMounted;
+ if (getPMAssertionLevel(kIOPMDriverAssertionReservedBit5) != /* AssertionBit5 = Thunderbolt */
+ kIOPMDriverAssertionLevelOff)
+ currentFactors |= kIOPMSleepFactorDriverAssertBit5;
+ if (getPMAssertionLevel(kIOPMDriverAssertionReservedBit7) !=
+ kIOPMDriverAssertionLevelOff)
+ currentFactors |= kIOPMSleepFactorDriverAssertBit7;
+ if (0 == deepSleepDelay)
+ currentFactors |= kIOPMSleepFactorDeepSleepNoDelay;
+ if (!clamshellClosed)
+ currentFactors |= kIOPMSleepFactorLidOpen;
+ if (acAdaptorConnected)
+ currentFactors |= kIOPMSleepFactorACPower;
+ if (lowBatteryCondition)
+ currentFactors |= kIOPMSleepFactorLowBattery;
+ if (sleepTimerMaintenance)
+ currentFactors |= kIOPMSleepFactorSleepTimerWake;
+
+ // pmset overrides
+ if ((hibernateMode & kIOHibernateModeOn) == 0)
+ currentFactors |= kIOPMSleepFactorDeepSleepDisable;
+ else if ((hibernateMode & kIOHibernateModeSleep) == 0)
+ currentFactors |= kIOPMSleepFactorDeepSleepDemand;
+
+ DLOG("Sleep policy %u entries, current factors 0x%x\n",
+ pt->entryCount, currentFactors);
+
+ for (uint32_t i = 0; i < pt->entryCount; i++)
+ {
+ const IOPMSystemSleepPolicyEntry * policyEntry = &pt->entries[i];
+
+ DLOG("factor mask 0x%08x, bits 0x%08x, flags 0x%08x, wake 0x%08x\n",
+ policyEntry->factorMask, policyEntry->factorBits,
+ policyEntry->sleepFlags, policyEntry->wakeEvents);
+
+ if ((currentFactors ^ policyEntry->factorBits) & policyEntry->factorMask)
+ continue; // mismatch, try next
+
+ if (p)
+ {
+ p->version = 1;
+ p->sleepFlags = policyEntry->sleepFlags;
+ p->sleepTimer = 0;
+ p->wakeEvents = policyEntry->wakeEvents;
+ if (p->sleepFlags & kIOPMSleepFlagSleepTimerEnable)
+ {
+ p->sleepTimer = deepSleepDelay;
+ }
+ }
+
+ DLOG("matched policy entry %u\n", i);
+ success = true;
+ break;
+ }
+
+done:
+ if (prop)
+ prop->release();
+
+ return success;
+}
+
+void IOPMrootDomain::evaluateSystemSleepPolicyEarly( void )
+{
+ IOPMSystemSleepParameters params;
+
+ // Evaluate sleep policy before driver sleep phase.
+
+ DLOG("%s\n", __FUNCTION__);
+ removeProperty(kIOPMSystemSleepParametersKey);
+
+ hibernateDisabled = false;
+ hibernateMode = 0;
+ getSleepOption(kIOHibernateModeKey, &hibernateMode);
+
+ if (!hibernateNoDefeat &&
+ evaluateSystemSleepPolicy(¶ms) &&
+ ((params.sleepFlags & kIOPMSleepFlagHibernate) == 0))
+ {
+ hibernateDisabled = true;
+ }
+}
+
+void IOPMrootDomain::evaluateSystemSleepPolicyFinal( void )
+{
+ IOPMSystemSleepParameters params;
+ OSData * paramsData;
+
+ // Evaluate sleep policy after drivers but before platform sleep.
+
+ DLOG("%s\n", __FUNCTION__);
+
+ if (evaluateSystemSleepPolicy(¶ms))
+ {
+ if ((hibernateDisabled || hibernateAborted) &&
+ (params.sleepFlags & kIOPMSleepFlagHibernate))
+ {
+ // Should hibernate but unable to or aborted.
+ // Arm timer for a short sleep and retry or wake fully.
+
+ params.sleepFlags &= ~kIOPMSleepFlagHibernate;
+ params.sleepFlags |= kIOPMSleepFlagSleepTimerEnable;
+ params.sleepTimer = 1;
+ hibernateNoDefeat = true;
+ DLOG("wake in %u secs for hibernateDisabled %d, hibernateAborted %d\n",
+ params.sleepTimer, hibernateDisabled, hibernateAborted);
+ }
+ else
+ hibernateNoDefeat = false;
+
+ paramsData = OSData::withBytes(¶ms, sizeof(params));
+ if (paramsData)
+ {
+ setProperty(kIOPMSystemSleepParametersKey, paramsData);
+ paramsData->release();
+ }
+
+ if (params.sleepFlags & kIOPMSleepFlagHibernate)
+ {
+ // Force hibernate
+ gIOHibernateMode &= ~kIOHibernateModeSleep;
+ }
+ }
+}
+
+bool IOPMrootDomain::getHibernateSettings(
+ uint32_t * hibernateMode,
+ uint32_t * hibernateFreeRatio,
+ uint32_t * hibernateFreeTime )
+{
+ bool ok = getSleepOption(kIOHibernateModeKey, hibernateMode);
+ getSleepOption(kIOHibernateFreeRatioKey, hibernateFreeRatio);
+ getSleepOption(kIOHibernateFreeTimeKey, hibernateFreeTime);
+ if (hibernateDisabled)
+ *hibernateMode = 0;
+ DLOG("hibernateMode 0x%x\n", *hibernateMode);
+ return ok;
+}
+
+bool IOPMrootDomain::getSleepOption( const char * key, uint32_t * option )
+{
+ OSObject * optionsProp;
+ OSDictionary * optionsDict;
+ OSObject * obj = 0;
+ OSNumber * num;
+ bool ok = false;
+
+ optionsProp = copyProperty(kRootDomainSleepOptionsKey);
+ optionsDict = OSDynamicCast(OSDictionary, optionsProp);
+
+ if (optionsDict)
+ {
+ obj = optionsDict->getObject(key);
+ if (obj) obj->retain();
+ }
+ if (!obj)
+ {
+ obj = copyProperty(key);
+ }
+ if (obj && (num = OSDynamicCast(OSNumber, obj)))
+ {
+ *option = num->unsigned32BitValue();
+ ok = true;
+ }
+
+ if (obj)
+ obj->release();
+ if (optionsProp)
+ optionsProp->release();
+
+ return true;
+}
+#endif /* HIBERNATION */
+
+// MARK: -
+// MARK: Shutdown and Restart
+
+//******************************************************************************
+// handlePlatformHaltRestart
+//
+//******************************************************************************
+
+struct HaltRestartApplierContext {
+ IOPMrootDomain * RootDomain;
+ unsigned long PowerState;
+ IOPMPowerFlags PowerFlags;
+ UInt32 MessageType;
+ UInt32 Counter;
+};
+
+static void
+platformHaltRestartApplier( OSObject * object, void * context )
+{
+ IOPowerStateChangeNotification notify;
+ HaltRestartApplierContext * ctx;
+ AbsoluteTime startTime;
+ UInt32 deltaTime;
+
+ ctx = (HaltRestartApplierContext *) context;
+
+ memset(¬ify, 0, sizeof(notify));
+ notify.powerRef = (void *)ctx->Counter;
+ notify.returnValue = 0;
+ notify.stateNumber = ctx->PowerState;
+ notify.stateFlags = ctx->PowerFlags;
+
+ clock_get_uptime(&startTime);
+ ctx->RootDomain->messageClient( ctx->MessageType, object, (void *)¬ify );
+ deltaTime = computeDeltaTimeMS(&startTime);
+
+ if ((deltaTime > kPMHaltTimeoutMS) ||
+ (gIOKitDebug & kIOLogPMRootDomain))
+ {
+ _IOServiceInterestNotifier * notifier;
+ notifier = OSDynamicCast(_IOServiceInterestNotifier, object);
+
+ // IOService children of IOPMrootDomain are not instrumented.
+ // Only IORootParent currently falls under that group.
+
+ if (notifier)
+ {
+ LOG("%s handler %p took %u ms\n",
+ (ctx->MessageType == kIOMessageSystemWillPowerOff) ? "PowerOff" :
+ (ctx->MessageType == kIOMessageSystemPagingOff) ? "PagingOff" : "Restart",
+ notifier->handler, (uint32_t) deltaTime );
+ }
+ }
+
+ ctx->Counter++;
+}
+
+void IOPMrootDomain::handlePlatformHaltRestart( UInt32 pe_type )
+{
+ HaltRestartApplierContext ctx;
+ AbsoluteTime startTime;
+ UInt32 deltaTime;
+
+ memset(&ctx, 0, sizeof(ctx));
+ ctx.RootDomain = this;
+
+ clock_get_uptime(&startTime);
+ switch (pe_type)
+ {
+ case kPEHaltCPU:
+ case kPEUPSDelayHaltCPU:
+ ctx.PowerState = OFF_STATE;
+ ctx.MessageType = kIOMessageSystemWillPowerOff;
+ break;
+
+ case kPERestartCPU:
+ ctx.PowerState = RESTART_STATE;
+ ctx.MessageType = kIOMessageSystemWillRestart;
+ break;
+
+ case kPEPagingOff:
+ ctx.PowerState = ON_STATE;
+ ctx.MessageType = kIOMessageSystemPagingOff;
+ IOService::updateConsoleUsers(NULL, kIOMessageSystemPagingOff);
+ break;
+
+ default:
+ return;
+ }
+
+ // Notify legacy clients
+ applyToInterested(gIOPriorityPowerStateInterest, platformHaltRestartApplier, &ctx);
+
+ // For normal shutdown, turn off File Server Mode.
+ if (kPEHaltCPU == pe_type)
+ {
+ const OSSymbol * setting = OSSymbol::withCString(kIOPMSettingRestartOnPowerLossKey);
+ OSNumber * num = OSNumber::withNumber((unsigned long long) 0, 32);
+ if (setting && num)
+ {
+ setPMSetting(setting, num);
+ setting->release();
+ num->release();
+ }
+ }
+
+ if (kPEPagingOff != pe_type)
+ {
+ // Notify in power tree order
+ notifySystemShutdown(this, ctx.MessageType);
+ }
+
+ deltaTime = computeDeltaTimeMS(&startTime);
+ LOG("%s all drivers took %u ms\n",
+ (ctx.MessageType == kIOMessageSystemWillPowerOff) ? "PowerOff" :
+ (ctx.MessageType == kIOMessageSystemPagingOff) ? "PagingOff" : "Restart",
+ (uint32_t) deltaTime );
+}
+
+//******************************************************************************
+// shutdownSystem
+//
+//******************************************************************************
+
+IOReturn IOPMrootDomain::shutdownSystem( void )
+{
+ return kIOReturnUnsupported;
+}
+
+//******************************************************************************
+// restartSystem
+//
+//******************************************************************************
+
+IOReturn IOPMrootDomain::restartSystem( void )
+{
+ return kIOReturnUnsupported;
+}
+
+// MARK: -
+// MARK: System Capability
+
+//******************************************************************************
+// tagPowerPlaneService
+//
+// Running on PM work loop thread.
+//******************************************************************************
+
+void IOPMrootDomain::tagPowerPlaneService(
+ IOService * service,
+ IOPMActions * actions )
+{
+ uint32_t flags = 0;
+ bool isDisplayWrangler;
+
+ memset(actions, 0, sizeof(*actions));
+ actions->target = this;
+
+ if (service == this)
+ {
+ actions->actionPowerChangeStart =
+ OSMemberFunctionCast(
+ IOPMActionPowerChangeStart, this,
+ &IOPMrootDomain::handleOurPowerChangeStart);
+
+ actions->actionPowerChangeDone =
+ OSMemberFunctionCast(
+ IOPMActionPowerChangeDone, this,
+ &IOPMrootDomain::handleOurPowerChangeDone);
+
+ actions->actionPowerChangeOverride =
+ OSMemberFunctionCast(
+ IOPMActionPowerChangeOverride, this,
+ &IOPMrootDomain::overrideOurPowerChange);
+ return;
+ }
+
+#if !NO_KERNEL_HID
+ isDisplayWrangler = (0 != service->metaCast("IODisplayWrangler"));
+ if (isDisplayWrangler)
+ {
+ wrangler = service;
+ wranglerConnection = (IOService *) service->getParentEntry(gIOPowerPlane);
+ }
+#else
+ isDisplayWrangler = false;
+#endif
+
+#if defined(__i386__) || defined(__x86_64__)
+ if (isDisplayWrangler)
+ flags |= kPMActionsFlagIsDisplayWrangler;
+ if (service->getProperty("IOPMStrictTreeOrder"))
+ flags |= kPMActionsFlagIsGraphicsDevice;
+ if (service->getProperty("IOPMUnattendedWakePowerState"))
+ flags |= kPMActionsFlagIsAudioDevice;
+#endif
+
+ // Find the power connection object that is a child of the PCI host
+ // bridge, and has a graphics/audio device attached below. Mark the
+ // power branch for delayed child notifications.
+
+ if (flags)
+ {
+ IORegistryEntry * child = service;
+ IORegistryEntry * parent = child->getParentEntry(gIOPowerPlane);
+
+ while (child != this)
+ {
+ if ((parent == pciHostBridgeDriver) ||
+ (parent == this))
+ {
+ if (OSDynamicCast(IOPowerConnection, child))
+ {
+ IOPowerConnection * conn = (IOPowerConnection *) child;
+ conn->delayChildNotification = true;
+ }
+ break;
+ }
+ child = parent;
+ parent = child->getParentEntry(gIOPowerPlane);
+ }
+ }
+
+ if (flags)
+ {
+ DLOG("%s tag flags %x\n", service->getName(), flags);
+ actions->parameter |= flags;
+ actions->actionPowerChangeOverride =
+ OSMemberFunctionCast(
+ IOPMActionPowerChangeOverride, this,
+ &IOPMrootDomain::overridePowerChangeForUIService);
+
+ if (flags & kPMActionsFlagIsDisplayWrangler)
+ {
+ actions->actionActivityTickle =
+ OSMemberFunctionCast(
+ IOPMActionActivityTickle, this,
+ &IOPMrootDomain::handleActivityTickleForDisplayWrangler);
+ }
+ return;
+ }
+
+ // Locate the first PCI host bridge for PMTrace.
+ if (!pciHostBridgeDevice && service->metaCast("IOPCIBridge"))
+ {
+ IOService * provider = service->getProvider();
+ if (OSDynamicCast(IOPlatformDevice, provider) &&
+ provider->inPlane(gIODTPlane))
+ {
+ pciHostBridgeDevice = provider;
+ pciHostBridgeDriver = service;
+ DLOG("PMTrace found PCI host bridge %s->%s\n",
+ provider->getName(), service->getName());
+ }
+ }
+
+ // Tag top-level PCI devices. The order of PMinit() call does not
+ // change across boots and is used as the PCI bit number.
+ if (pciHostBridgeDevice && service->metaCast("IOPCIDevice"))
+ {
+ // Would prefer to check built-in property, but tagPowerPlaneService()
+ // is called before pciDevice->registerService().
+ IORegistryEntry * parent = service->getParentEntry(gIODTPlane);
+ if ((parent == pciHostBridgeDevice) && service->getProperty("acpi-device"))
+ {
+ int bit = pmTracer->recordTopLevelPCIDevice( service );
+ if (bit >= 0)
+ {
+ // Save the assigned bit for fast lookup.
+ actions->parameter |= (bit & kPMActionsPCIBitNumberMask);
+
+ actions->actionPowerChangeStart =
+ OSMemberFunctionCast(
+ IOPMActionPowerChangeStart, this,
+ &IOPMrootDomain::handlePowerChangeStartForPCIDevice);
+
+ actions->actionPowerChangeDone =
+ OSMemberFunctionCast(
+ IOPMActionPowerChangeDone, this,
+ &IOPMrootDomain::handlePowerChangeDoneForPCIDevice);
+ }
+ }
+ }
+}
+
+//******************************************************************************
+// PM actions for root domain
+//******************************************************************************
+
+void IOPMrootDomain::overrideOurPowerChange(
+ IOService * service,
+ IOPMActions * actions,
+ unsigned long * inOutPowerState,
+ uint32_t * inOutChangeFlags )
+{
+ uint32_t powerState = (uint32_t) *inOutPowerState;
+ uint32_t changeFlags = *inOutChangeFlags;
+ uint32_t currentPowerState = (uint32_t) getPowerState();
+
+ if ((currentPowerState == powerState) ||
+ (changeFlags & kIOPMParentInitiated))
+ {
+ // FIXME: cancel any parent change (unexpected)
+ // Root parent is permanently pegged at max power,
+ // kIOPMParentInitiated is unexpected.
+ return;
+ }
+
+ if (powerState < currentPowerState)
+ {
+ if ((changeFlags & kIOPMSkipAskPowerDown) == 0)
+ {
+ /* Convenient place to run any code at idle sleep time
+ * IOPMrootDomain initiates an idle sleep here
+ *
+ * Set last sleep cause accordingly.
+ */
+ pmPowerStateQueue->submitPowerEvent(kPowerEventPublishSleepWakeUUID, (void *)true);
+
+ lastSleepReason = kIOPMSleepReasonIdle;
+ setProperty(kRootDomainSleepReasonKey, kIOPMIdleSleepKey);
+ }
+ if (CAP_CURRENT(kIOPMSystemCapabilityGraphics))
+ {
+ // Root domain is dropping power state ON->SLEEP.
+ // If system is in full wake, first drop to dark wake.
+
+ darkWakeToSleepASAP = true;
+
+ // Drop graphics capability.
+ // No transition if system is already in dark wake.
+
+ _desiredCapability &= ~(
+ kIOPMSystemCapabilityGraphics |
+ kIOPMSystemCapabilityAudio );
+
+ *inOutPowerState = ON_STATE;
+ *inOutChangeFlags |= kIOPMSynchronize;
+
+ // Revert device desire from SLEEP->ON.
+ changePowerStateToPriv(ON_STATE);
+ }
+ }
+}
+
+void IOPMrootDomain::handleOurPowerChangeStart(
+ IOService * service,
+ IOPMActions * actions,
+ uint32_t powerState,
+ uint32_t * inOutChangeFlags )
+{
+ uint32_t changeFlags = *inOutChangeFlags;
+ uint32_t currentPowerState = (uint32_t) getPowerState();
+
+ _systemTransitionType = kSystemTransitionNone;
+ _systemMessageClientMask = 0;
+ capabilityLoss = false;
+
+ // 1. Explicit capability change.
+
+ if (changeFlags & kIOPMSynchronize)
+ {
+ if (powerState == ON_STATE)
+ {
+ if (changeFlags & kIOPMSyncNoChildNotify)
+ _systemTransitionType = kSystemTransitionNewCapClient;
+ else
+ _systemTransitionType = kSystemTransitionCapability;
+ }
+ }
+
+ // 2. Going to sleep (cancellation still possible).
+
+ else if (powerState < currentPowerState)
+ _systemTransitionType = kSystemTransitionSleep;
+
+ // 3. Woke from (idle or demand) sleep.
+
+ else if (!systemBooting &&
+ (changeFlags & kIOPMSelfInitiated) &&
+ (powerState > currentPowerState))
+ {
+ _systemTransitionType = kSystemTransitionWake;
+ _desiredCapability = kIOPMSystemCapabilityCPU |
+ kIOPMSystemCapabilityNetwork;
+
+ // Check for early HID events (e.g. LID open)
+ if (wranglerTickled)
+ {
+ _desiredCapability |= (
+ kIOPMSystemCapabilityGraphics |
+ kIOPMSystemCapabilityAudio );
+ }
+ }
+
+ // Update pending wake capability at the beginning of every
+ // state transition (including synchronize). This will become
+ // the current capability at the end of the transition.
+
+ if (kSystemTransitionSleep == _systemTransitionType)
+ {
+ _pendingCapability = 0;
+ capabilityLoss = true;
+ }
+ else if (kSystemTransitionNewCapClient != _systemTransitionType)
+ {
+ _pendingCapability = _desiredCapability |
+ kIOPMSystemCapabilityCPU |
+ kIOPMSystemCapabilityNetwork;
+
+ if (_pendingCapability & kIOPMSystemCapabilityGraphics)
+ _pendingCapability |= kIOPMSystemCapabilityAudio;
+
+ if ((kSystemTransitionCapability == _systemTransitionType) &&
+ (_pendingCapability == _currentCapability))
+ {
+ // Cancel the PM state change.
+ _systemTransitionType = kSystemTransitionNone;
+ *inOutChangeFlags |= kIOPMNotDone;
+ }
+ if (__builtin_popcount(_pendingCapability) <
+ __builtin_popcount(_currentCapability))
+ capabilityLoss = true;
+ if (CAP_LOSS(kIOPMSystemCapabilityGraphics))
+ rejectWranglerTickle = true;
+ }
+
+ // 1. Capability change.
+
+ if (kSystemTransitionCapability == _systemTransitionType)
+ {
+ // Dark to Full transition.
+ if (CAP_GAIN(kIOPMSystemCapabilityGraphics))
+ {
+ tracePoint( kIOPMTracePointDarkWakeExit );
+ wranglerSleepIgnored = false;
+ sleepTimerMaintenance = false;
+ hibernateNoDefeat = false;
+ _systemMessageClientMask = kSystemMessageClientUser;
+ if ((_highestCapability & kIOPMSystemCapabilityGraphics) == 0)
+ _systemMessageClientMask |= kSystemMessageClientKernel;
+
+ tellClients(kIOMessageSystemWillPowerOn);
+ }
+
+ // Full to Dark transition.
+ if (CAP_LOSS(kIOPMSystemCapabilityGraphics))
+ {
+ tracePoint( kIOPMTracePointDarkWakeEntry );
+ *inOutChangeFlags |= kIOPMSyncTellPowerDown;
+ _systemMessageClientMask = kSystemMessageClientUser;
+ }
+ }
+
+ // 2. System sleep.
+
+ else if (kSystemTransitionSleep == _systemTransitionType)
+ {
+ // Beginning of a system sleep transition.
+ // Cancellation is still possible.
+ tracePoint( kIOPMTracePointSleepStarted, lastSleepReason );
+
+ _systemMessageClientMask = kSystemMessageClientAll;
+ if ((_currentCapability & kIOPMSystemCapabilityGraphics) == 0)
+ _systemMessageClientMask &= ~kSystemMessageClientApp;
+ if ((_highestCapability & kIOPMSystemCapabilityGraphics) == 0)
+ _systemMessageClientMask &= ~kSystemMessageClientKernel;
+
+ // Optimization to ignore wrangler power down thus skipping
+ // the disk spindown and arming the idle timer for demand sleep.
+
+ if (changeFlags & kIOPMIgnoreChildren)
+ {
+ wranglerSleepIgnored = true;
+ }
+
+ logWranglerTickle = false;
+ }
+
+ // 3. System wake.
+
+ else if (kSystemTransitionWake == _systemTransitionType)
+ {
+ wranglerSleepIgnored = false;
+
+ if (_pendingCapability & kIOPMSystemCapabilityGraphics)
+ {
+ _systemMessageClientMask = kSystemMessageClientAll;
+ }
+ else
+ {
+ _systemMessageClientMask = kSystemMessageClientConfigd;
+ }
+
+ tracePoint( kIOPMTracePointWakeWillPowerOnClients );
+ tellClients(kIOMessageSystemWillPowerOn);
+ }
+
+ if ((kSystemTransitionNone != _systemTransitionType) &&
+ (kSystemTransitionNewCapClient != _systemTransitionType))
+ {
+ _systemStateGeneration++;
+ systemDarkWake = false;
+
+ DLOG("=== START (%u->%u, 0x%x) type %u, gen %u, msg %x, "
+ "dcp %x:%x:%x\n",
+ currentPowerState, powerState, *inOutChangeFlags,
+ _systemTransitionType, _systemStateGeneration,
+ _systemMessageClientMask,
+ _desiredCapability, _currentCapability, _pendingCapability);
+ }
+}
+
+void IOPMrootDomain::handleOurPowerChangeDone(
+ IOService * service,
+ IOPMActions * actions,
+ uint32_t powerState,
+ uint32_t changeFlags )
+{
+ if (kSystemTransitionNewCapClient == _systemTransitionType)
+ {
+ _systemTransitionType = kSystemTransitionNone;
+ return;
+ }
+
+ if (_systemTransitionType != kSystemTransitionNone)
+ {
+ uint32_t currentPowerState = (uint32_t) getPowerState();
+
+ if (changeFlags & kIOPMNotDone)
+ {
+ // Power down was cancelled or vetoed.
+ _pendingCapability = _currentCapability;
+ lastSleepReason = 0;
+
+ if (((_currentCapability & kIOPMSystemCapabilityGraphics) == 0) &&
+ (_currentCapability & kIOPMSystemCapabilityCPU))
+ {
+ pmPowerStateQueue->submitPowerEvent(
+ kPowerEventPolicyStimulus,
+ (void *) kStimulusDarkWakeReentry,
+ _systemStateGeneration );
+ }
+
+ // Revert device desire to max.
+ changePowerStateToPriv(ON_STATE);
+ }
+ else
+ {
+ // Send message on dark wake to full wake promotion.
+ // tellChangeUp() handles the normal SLEEP->ON case.
+
+ if (kSystemTransitionCapability == _systemTransitionType)
+ {
+ if (CAP_GAIN(kIOPMSystemCapabilityGraphics))
+ {
+ tellClients(kIOMessageSystemHasPoweredOn);
+#if DARK_TO_FULL_EVALUATE_CLAMSHELL
+ // Re-evaluate clamshell state ourselves when graphics
+ // will not get kIOMessageSystemHasPoweredOn.
+
+ if (clamshellClosed &&
+ ((_systemMessageClientMask & kSystemMessageClientKernel) == 0))
+ {
+ receivePowerNotification( kLocalEvalClamshellCommand );
+ }
+#endif
+ }
+ if (CAP_LOSS(kIOPMSystemCapabilityGraphics))
+ wranglerTickled = false;
+ }
+
+ // Reset state after exiting from dark wake.
+
+ if (CAP_GAIN(kIOPMSystemCapabilityGraphics) ||
+ CAP_LOSS(kIOPMSystemCapabilityCPU))
+ {
+ darkWakeMaintenance = false;
+ darkWakeToSleepASAP = false;
+ pciCantSleepValid = false;
+ rejectWranglerTickle = false;
+ }
+
+ // Entered dark mode.
+
+ if (((_pendingCapability & kIOPMSystemCapabilityGraphics) == 0) &&
+ (_pendingCapability & kIOPMSystemCapabilityCPU))
+ {
+ if (((gDarkWakeFlags & kDarkWakeFlagIgnoreDiskIOInDark) == 0) &&
+ (kSystemTransitionWake == _systemTransitionType) &&
+ (_debugWakeSeconds == 0))
+ {
+ OSObject * prop = copyProperty(kIOPMRootDomainWakeTypeKey);
+ if (prop)
+ {
+ OSString * wakeType = OSDynamicCast(OSString, prop);
+ if (wakeType &&
+ wakeType->isEqualTo(kIOPMRootDomainWakeTypeNetwork))
+ {
+ // Woke from network and entered dark wake.
+ if (darkWakeToSleepASAP)
+ {
+ DLOG("cleared darkWakeToSleepASAP\n");
+ darkWakeToSleepASAP = false;
+ }
+ }
+ prop->release();
+ }
+ }
+
+ // Queue an evaluation of whether to remain in dark wake,
+ // and for how long. This serves the purpose of draining
+ // any assertions from the queue.
+
+ pmPowerStateQueue->submitPowerEvent(
+ kPowerEventPolicyStimulus,
+ (void *) kStimulusDarkWakeEntry,
+ _systemStateGeneration );
+ }
+ }
+
+ DLOG("=== FINISH (%u->%u, 0x%x) type %u, gen %u, msg %x, "
+ "dcp %x:%x:%x, dbgtimer %u\n",
+ currentPowerState, powerState, changeFlags,
+ _systemTransitionType, _systemStateGeneration,
+ _systemMessageClientMask,
+ _desiredCapability, _currentCapability, _pendingCapability,
+ _debugWakeSeconds);
+
+ // Update current system capability.
+
+ if (_currentCapability != _pendingCapability)
+ _currentCapability = _pendingCapability;
+
+ // Update highest system capability.
+
+ if (!CAP_CURRENT(kIOPMSystemCapabilityCPU))
+ _highestCapability = 0; // reset at sleep state
+ else
+ _highestCapability |= _currentCapability;
+
+ if (darkWakePostTickle &&
+ (kSystemTransitionWake == _systemTransitionType) &&
+ (gDarkWakeFlags & kDarkWakeFlagHIDTickleMask) ==
+ kDarkWakeFlagHIDTickleLate)
+ {
+ darkWakePostTickle = false;
+ reportUserInput();
+ }
+
+ // Reset tracepoint at completion of capability change,
+ // completion of wake transition, and aborted sleep transition.
+
+ if ((_systemTransitionType == kSystemTransitionCapability) ||
+ (_systemTransitionType == kSystemTransitionWake) ||
+ ((_systemTransitionType == kSystemTransitionSleep) &&
+ (changeFlags & kIOPMNotDone)))
+ {
+ setProperty(kIOPMSystemCapabilitiesKey, _currentCapability, 64);
+ tracePoint( kIOPMTracePointSystemUp, 0 );
+ }
+
+ _systemTransitionType = kSystemTransitionNone;
+ _systemMessageClientMask = 0;
+
+ logGraphicsClamp = false;
+ }
+}
+
+//******************************************************************************
+// PM actions for graphics and audio.
+//******************************************************************************
+
+void IOPMrootDomain::overridePowerChangeForUIService(
+ IOService * service,
+ IOPMActions * actions,
+ unsigned long * inOutPowerState,
+ uint32_t * inOutChangeFlags )
+{
+ uint32_t powerState = (uint32_t) *inOutPowerState;
+ uint32_t changeFlags = (uint32_t) *inOutChangeFlags;
+
+ if (kSystemTransitionNone == _systemTransitionType)
+ {
+ // Not in midst of a system transition.
+ // Do not modify power limit enable state.
+ }
+ else if ((actions->parameter & kPMActionsFlagLimitPower) == 0)
+ {
+ // Activate power limiter.
+
+ if ((actions->parameter & kPMActionsFlagIsDisplayWrangler) &&
+ ((_pendingCapability & kIOPMSystemCapabilityGraphics) == 0))
+ {
+ actions->parameter |= kPMActionsFlagLimitPower;
+ }
+ else if ((actions->parameter & kPMActionsFlagIsAudioDevice) &&
+ ((_pendingCapability & kIOPMSystemCapabilityAudio) == 0))
+ {
+ actions->parameter |= kPMActionsFlagLimitPower;
+ }
+ else if ((actions->parameter & kPMActionsFlagIsGraphicsDevice) &&
+ (_systemTransitionType == kSystemTransitionSleep))
+ {
+ // For graphics devices, arm the limiter when entering
+ // system sleep. Not when dropping to dark wake.
+ actions->parameter |= kPMActionsFlagLimitPower;
+ }
+
+ if (actions->parameter & kPMActionsFlagLimitPower)
+ {
+ DLOG("+ plimit %s %p\n",
+ service->getName(), service);
+ }
+ }
+ else
+ {
+ // Remove power limit.
+
+ if ((actions->parameter & (
+ kPMActionsFlagIsDisplayWrangler |
+ kPMActionsFlagIsGraphicsDevice )) &&
+ (_pendingCapability & kIOPMSystemCapabilityGraphics))
+ {
+ actions->parameter &= ~kPMActionsFlagLimitPower;
+ }
+ else if ((actions->parameter & kPMActionsFlagIsAudioDevice) &&
+ (_pendingCapability & kIOPMSystemCapabilityAudio))
+ {
+ actions->parameter &= ~kPMActionsFlagLimitPower;
+ }
+
+ if ((actions->parameter & kPMActionsFlagLimitPower) == 0)
+ {
+ DLOG("- plimit %s %p\n",
+ service->getName(), service);
+ }
+ }
+
+ if (gRAMDiskImageBoot &&
+ (actions->parameter & kPMActionsFlagIsDisplayWrangler))
+ {
+ // Tag devices subject to power suppression.
+ *inOutChangeFlags |= kIOPMPowerSuppressed;
+ }
+
+ if (actions->parameter & kPMActionsFlagLimitPower)
+ {
+ uint32_t maxPowerState = (uint32_t)(-1);
+
+ if (changeFlags & (kIOPMDomainDidChange | kIOPMDomainWillChange))
+ {
+ // Enforce limit for system power/cap transitions.
+
+ maxPowerState = 0;
+ if ((actions->parameter & kPMActionsFlagIsDisplayWrangler) &&
+ (!gRAMDiskImageBoot || (service->getPowerState() > 0)))
+ {
+ // Forces a 3->1 transition sequence
+ if (changeFlags & kIOPMDomainWillChange)
+ maxPowerState = 3;
+ else
+ maxPowerState = 1;
+ }
+ }
+ else
+ {
+ // Deny all self-initiated changes when power is limited.
+ // Wrangler tickle should never defeat the limiter.
+
+ maxPowerState = service->getPowerState();
+ }
+
+ if (powerState > maxPowerState)
+ {
+ DLOG("> plimit %s %p (%u->%u, 0x%x)\n",
+ service->getName(), service, powerState, maxPowerState,
+ changeFlags);
+ *inOutPowerState = maxPowerState;
+
+ if (darkWakePostTickle &&
+ (actions->parameter & kPMActionsFlagIsDisplayWrangler) &&
+ (changeFlags & kIOPMDomainWillChange) &&
+ ((gDarkWakeFlags & kDarkWakeFlagHIDTickleMask) ==
+ kDarkWakeFlagHIDTickleEarly))
+ {
+ darkWakePostTickle = false;
+ reportUserInput();
+ }
+ }
+
+ if (!graphicsSuppressed && (changeFlags & kIOPMDomainDidChange))
+ {
+ if (logGraphicsClamp)
+ {
+ AbsoluteTime now;
+ uint64_t nsec;
+
+ clock_get_uptime(&now);
+ SUB_ABSOLUTETIME(&now, &systemWakeTime);
+ absolutetime_to_nanoseconds(now, &nsec);
+ MSG("Graphics suppressed %u ms\n",
+ ((int)((nsec) / 1000000ULL)));
+ }
+ graphicsSuppressed = true;
+ }
+ }
+}
+
+void IOPMrootDomain::handleActivityTickleForDisplayWrangler(
+ IOService * service,
+ IOPMActions * actions )
+{
+ // Warning: Not running in PM work loop context - don't modify state !!!
+ // Trap tickle directed to IODisplayWrangler while running with graphics
+ // capability suppressed.
+
+ assert(service == wrangler);
+
+ if (service == wrangler)
+ {
+ bool aborting = ((lastSleepReason == kIOPMSleepReasonIdle)
+ || (lastSleepReason == kIOPMSleepReasonMaintenance));
+ if (aborting) {
+ userActivityCount++;
+ DLOG("display wrangler tickled1 %d lastSleepReason %d\n", userActivityCount, lastSleepReason);
+ }
+ }
+
+ if (!wranglerTickled && !lowBatteryCondition &&
+ ((_pendingCapability & kIOPMSystemCapabilityGraphics) == 0))
+ {
+ DLOG("display wrangler tickled\n");
+ if (kIOLogPMRootDomain & gIOKitDebug)
+ OSReportWithBacktrace("Dark wake display tickle");
+ if (pmPowerStateQueue)
+ {
+ pmPowerStateQueue->submitPowerEvent(
+ kPowerEventPolicyStimulus,
+ (void *) kStimulusDarkWakeActivityTickle );
+ }
+ }
+}
+
+//******************************************************************************
+// Approve usage of delayed child notification by PM.
+//******************************************************************************
+
+bool IOPMrootDomain::shouldDelayChildNotification(
+ IOService * service )
+{
+ if (((gDarkWakeFlags & kDarkWakeFlagHIDTickleMask) != 0) &&
+ !wranglerTickled &&
+ (kSystemTransitionWake == _systemTransitionType))
+ {
+ DLOG("%s: delay child notify\n", service->getName());
+ return true;
+ }
+ return false;
+}
+
+//******************************************************************************
+// PM actions for PCI device.
+//******************************************************************************
+
+void IOPMrootDomain::handlePowerChangeStartForPCIDevice(
+ IOService * service,
+ IOPMActions * actions,
+ uint32_t powerState,
+ uint32_t * inOutChangeFlags )
+{
+ pmTracer->tracePCIPowerChange(
+ PMTraceWorker::kPowerChangeStart,
+ service, *inOutChangeFlags,
+ (actions->parameter & kPMActionsPCIBitNumberMask));
+}
+
+void IOPMrootDomain::handlePowerChangeDoneForPCIDevice(
+ IOService * service,
+ IOPMActions * actions,
+ uint32_t powerState,
+ uint32_t changeFlags )
+{
+ pmTracer->tracePCIPowerChange(
+ PMTraceWorker::kPowerChangeCompleted,
+ service, changeFlags,
+ (actions->parameter & kPMActionsPCIBitNumberMask));
+}
+
+//******************************************************************************
+// registerInterest
+//
+// Override IOService::registerInterest() to intercept special clients.
+//******************************************************************************
+
+IONotifier * IOPMrootDomain::registerInterest(
+ const OSSymbol * typeOfInterest,
+ IOServiceInterestHandler handler,
+ void * target, void * ref )
+{
+ IONotifier * notifier;
+ bool isSystemCapabilityClient;
+ bool isKernelCapabilityClient;
+
+ isSystemCapabilityClient =
+ typeOfInterest &&
+ typeOfInterest->isEqualTo(kIOPMSystemCapabilityInterest);
+
+ isKernelCapabilityClient =
+ typeOfInterest &&
+ typeOfInterest->isEqualTo(gIOPriorityPowerStateInterest);
+
+ if (isSystemCapabilityClient)
+ typeOfInterest = gIOAppPowerStateInterest;
+
+ notifier = super::registerInterest(typeOfInterest, handler, target, ref);
+ if (notifier && pmPowerStateQueue)
+ {
+ if (isSystemCapabilityClient)
+ {
+ notifier->retain();
+ if (pmPowerStateQueue->submitPowerEvent(
+ kPowerEventRegisterSystemCapabilityClient, notifier) == false)
+ notifier->release();
+ }
+
+ if (isKernelCapabilityClient)
+ {
+ notifier->retain();
+ if (pmPowerStateQueue->submitPowerEvent(
+ kPowerEventRegisterKernelCapabilityClient, notifier) == false)
+ notifier->release();
+ }
+ }
+
+ return notifier;
+}
+
+//******************************************************************************
+// systemMessageFilter
+//
+//******************************************************************************
+
+bool IOPMrootDomain::systemMessageFilter(
+ void * object, void * arg1, void * arg2, void * arg3 )
+{
+ const IOPMInterestContext * context = (const IOPMInterestContext *) arg1;
+ bool isCapMsg = (context->messageType == kIOMessageSystemCapabilityChange);
+ bool isCapClient = false;
+ bool allow = false;
+
+ do {
+ if ((kSystemTransitionNewCapClient == _systemTransitionType) &&
+ (!isCapMsg || !_joinedCapabilityClients ||
+ !_joinedCapabilityClients->containsObject((OSObject *) object)))
+ break;
+
+ // Capability change message for app and kernel clients.
+
+ if (isCapMsg)
+ {
+ if ((context->notifyType == kNotifyPriority) ||
+ (context->notifyType == kNotifyCapabilityChangePriority))
+ isCapClient = true;
+
+ if ((context->notifyType == kNotifyCapabilityChangeApps) &&
+ (object == (void *) systemCapabilityNotifier))
+ isCapClient = true;
+ }
+
+ if (isCapClient)
+ {
+ IOPMSystemCapabilityChangeParameters * capArgs =
+ (IOPMSystemCapabilityChangeParameters *) arg2;
+
+ if (kSystemTransitionNewCapClient == _systemTransitionType)
+ {
+ capArgs->fromCapabilities = 0;
+ capArgs->toCapabilities = _currentCapability;
+ capArgs->changeFlags = 0;
+ }
+ else
+ {
+ capArgs->fromCapabilities = _currentCapability;
+ capArgs->toCapabilities = _pendingCapability;
+
+ if (context->isPreChange)
+ capArgs->changeFlags = kIOPMSystemCapabilityWillChange;
+ else
+ capArgs->changeFlags = kIOPMSystemCapabilityDidChange;
+ }
+
+ // Capability change messages only go to the PM configd plugin.
+ // Wait for response post-change if capabilitiy is increasing.
+ // Wait for response pre-change if capability is decreasing.
+
+ if ((context->notifyType == kNotifyCapabilityChangeApps) && arg3 &&
+ ( (capabilityLoss && context->isPreChange) ||
+ (!capabilityLoss && !context->isPreChange) ) )
+ {
+ // app has not replied yet, wait for it
+ *((OSObject **) arg3) = kOSBooleanFalse;
+ }
+
+ allow = true;
+ break;
+ }
+
+ // Capability client will always see kIOMessageCanSystemSleep,
+ // even for demand sleep.
+
+ if ((kIOMessageCanSystemSleep == context->messageType) ||
+ (kIOMessageSystemWillNotSleep == context->messageType))
+ {
+ if (object == (OSObject *) systemCapabilityNotifier)
+ {
+ allow = true;
+ break;
+ }
+
+ // Not idle sleep, don't ask apps.
+ if (context->changeFlags & kIOPMSkipAskPowerDown)
+ {
+ break;
+ }
+ }
+
+ // Reject capability change messages for legacy clients.
+ // Reject legacy system sleep messages for capability client.
+
+ if (isCapMsg || (object == (OSObject *) systemCapabilityNotifier))
+ {
+ break;
+ }
+
+ // Filter system sleep messages.
+
+ if ((context->notifyType == kNotifyApps) &&
+ (_systemMessageClientMask & kSystemMessageClientApp))
+ {
+ allow = true;
+ }
+ else if ((context->notifyType == kNotifyPriority) &&
+ (_systemMessageClientMask & kSystemMessageClientKernel))
+ {
+ allow = true;
+ }
+ }
+ while (false);
+
+ if (allow && isCapMsg && _joinedCapabilityClients)
+ {
+ _joinedCapabilityClients->removeObject((OSObject *) object);
+ if (_joinedCapabilityClients->getCount() == 0)
+ {
+ DLOG("destroyed capability client set %p\n",
+ _joinedCapabilityClients);
+ _joinedCapabilityClients->release();
+ _joinedCapabilityClients = 0;
+ }
+ }
+
+ return allow;
+}
+
+//******************************************************************************
+// setMaintenanceWakeCalendar
+//
+//******************************************************************************
+
+IOReturn IOPMrootDomain::setMaintenanceWakeCalendar(
+ const IOPMCalendarStruct * calendar )
+{
+ OSData * data;
+ IOReturn ret;
+
+ if (!calendar)
+ return kIOReturnBadArgument;
+
+ data = OSData::withBytesNoCopy((void *) calendar, sizeof(*calendar));
+ if (!data)
+ return kIOReturnNoMemory;
+
+ ret = setPMSetting(gIOPMSettingMaintenanceWakeCalendarKey, data);
+
+ data->release();
+ return ret;
+}
+
+// MARK: -
+// MARK: Display Wrangler
+
+//******************************************************************************
+// displayWranglerNotification
+//
+// Handle the notification when the IODisplayWrangler changes power state.
+//******************************************************************************
+
+IOReturn IOPMrootDomain::displayWranglerNotification(
+ void * target, void * refCon,
+ UInt32 messageType, IOService * service,
+ void * messageArgument, vm_size_t argSize )
+{
+#if !NO_KERNEL_HID
+ int displayPowerState;
+ IOPowerStateChangeNotification * params =
+ (IOPowerStateChangeNotification *) messageArgument;
+
+ if ((messageType != kIOMessageDeviceWillPowerOff) &&
+ (messageType != kIOMessageDeviceHasPoweredOn))
+ return kIOReturnUnsupported;
+
+ ASSERT_GATED();
+ if (!gRootDomain)
+ return kIOReturnUnsupported;
+
+ displayPowerState = params->stateNumber;
+ DLOG("DisplayWrangler message 0x%x, power state %d\n",
+ (uint32_t) messageType, displayPowerState);
+
+ switch (messageType) {
+ case kIOMessageDeviceWillPowerOff:
+
+ // Display wrangler has dropped power due to display idle
+ // or force system sleep.
+ //
+ // 4 Display ON
+ // 3 Display Dim
+ // 2 Display Sleep
+ // 1 Not visible to user
+ // 0 Not visible to user
+
+ if (displayPowerState > 2)
+ break;
+
+ gRootDomain->evaluatePolicy( kStimulusDisplayWranglerSleep );
+ break;
+
+ case kIOMessageDeviceHasPoweredOn:
+
+ // Display wrangler has powered on due to user activity
+ // or wake from sleep.
+
+ if ( 4 != displayPowerState )
+ break;
+
+ gRootDomain->evaluatePolicy( kStimulusDisplayWranglerWake );
+ break;
+ }
+#endif
+ return kIOReturnUnsupported;
+}
+
+//*********************************************************************************
+// displayWranglerMatchPublished
+//
+// Receives a notification when the IODisplayWrangler is published.
+// When it's published we install a power state change handler.
+//******************************************************************************
+
+bool IOPMrootDomain::displayWranglerMatchPublished(
+ void * target,
+ void * refCon,
+ IOService * newService,
+ IONotifier * notifier __unused)
+{
+#if !NO_KERNEL_HID
+ // found the display wrangler, now install a handler
+ if( !newService->registerInterest( gIOGeneralInterest,
+ &displayWranglerNotification, target, 0) )
+ {
+ return false;
+ }
+#endif
+ return true;
+}
+
+//******************************************************************************
+// reportUserInput
+//
+//******************************************************************************
+
+void IOPMrootDomain::reportUserInput( void )
+{
+#if !NO_KERNEL_HID
+ OSIterator * iter;
+
+ if(!wrangler)
+ {
+ iter = getMatchingServices(serviceMatching("IODisplayWrangler"));
+ if(iter)
+ {
+ wrangler = (IOService *) iter->getNextObject();
+ iter->release();
+ }
+ }
+
+ if(wrangler)
+ wrangler->activityTickle(0,0);
+#endif
+}
+
+// MARK: -
+// MARK: Battery
+
+//******************************************************************************
+// batteryPublished
+//
+// Notification on battery class IOPowerSource appearance
+//******************************************************************************
+
+bool IOPMrootDomain::batteryPublished(
+ void * target,
+ void * root_domain,
+ IOService * resourceService,
+ IONotifier * notifier __unused )
+{
+ // rdar://2936060&4435589
+ // All laptops have dimmable LCD displays
+ // All laptops have batteries
+ // So if this machine has a battery, publish the fact that the backlight
+ // supports dimming.
+ ((IOPMrootDomain *)root_domain)->publishFeature("DisplayDims");
+
+ return (true);
+}
+
+// MARK: -
+// MARK: System PM Policy
+
+//******************************************************************************
+// checkSystemCanSleep
+//
+//******************************************************************************
+
+bool IOPMrootDomain::checkSystemCanSleep( IOOptionBits options )
+{
+ int err = 0;
+
+ // Conditions that prevent idle and demand system sleep.
+
+ do {
+ if (userDisabledAllSleep)
+ {
+ err = 1; // 1. user-space sleep kill switch
+ break;
+ }
+
+ if (systemBooting || systemShutdown)
+ {
+ err = 2; // 2. restart or shutdown in progress
+ break;
+ }
+
+ if (options == 0)
+ break;
+
+ // Conditions above pegs the system at full wake.
+ // Conditions below prevent system sleep but does not prevent
+ // dark wake, and must be called from gated context.
+
+#if !CONFIG_SLEEP
+ err = 3; // 3. config does not support sleep
+ break;
+#endif
+
+ if (lowBatteryCondition)
+ {
+ break; // always sleep on low battery
+ }
+
+ if (childPreventSystemSleep)
+ {
+ err = 4; // 4. child prevent system sleep clamp
+ break;
+ }
+
+ if (getPMAssertionLevel( kIOPMDriverAssertionCPUBit ) ==
+ kIOPMDriverAssertionLevelOn)
+ {
+ err = 5; // 5. CPU assertion
+ break;
+ }
+
+ if (pciCantSleepValid)
+ {
+ if (pciCantSleepFlag)
+ err = 6; // 6. PCI card does not support PM (cached)
+ break;
+ }
+ else if (sleepSupportedPEFunction &&
+ CAP_HIGHEST(kIOPMSystemCapabilityGraphics))
+ {
+ IOReturn ret;
+ OSBitAndAtomic(~kPCICantSleep, &platformSleepSupport);
+ ret = getPlatform()->callPlatformFunction(
+ sleepSupportedPEFunction, false,
+ NULL, NULL, NULL, NULL);
+ pciCantSleepValid = true;
+ pciCantSleepFlag = false;
+ if ((platformSleepSupport & kPCICantSleep) ||
+ ((ret != kIOReturnSuccess) && (ret != kIOReturnUnsupported)))
+ {
+ err = 6; // 6. PCI card does not support PM
+ pciCantSleepFlag = true;
+ break;
+ }
+ }
+ }
+ while (false);
+
+ if (err)
+ {
+ DLOG("System sleep prevented by %d\n", err);
+ return false;
+ }
+ return true;
+}
+
+//******************************************************************************
+// adjustPowerState
+//
+// Conditions that affect our wake/sleep decision has changed.
+// If conditions dictate that the system must remain awake, clamp power
+// state to max with changePowerStateToPriv(ON). Otherwise if sleepASAP
+// is TRUE, then remove the power clamp and allow the power state to drop
+// to SLEEP_STATE.
+//******************************************************************************
+
+void IOPMrootDomain::adjustPowerState( bool sleepASAP )
+{
+ DLOG("adjustPowerState ps %u, asap %d, slider %ld\n",
+ (uint32_t) getPowerState(), sleepASAP, sleepSlider);
+
+ ASSERT_GATED();
+
+ if ((sleepSlider == 0) || !checkSystemCanSleep())
+ {
+ changePowerStateToPriv(ON_STATE);
+ }
+ else if ( sleepASAP )
+ {
+ changePowerStateToPriv(SLEEP_STATE);
+ }
+}
+
+//******************************************************************************
+// dispatchPowerEvent
+//
+// IOPMPowerStateQueue callback function. Running on PM work loop thread.
+//******************************************************************************
+
+void IOPMrootDomain::dispatchPowerEvent(
+ uint32_t event, void * arg0, uint64_t arg1 )
+{
+ DLOG("power event %u args %p 0x%llx\n", event, arg0, arg1);
+ ASSERT_GATED();
+
+ switch (event)
+ {
+ case kPowerEventFeatureChanged:
+ messageClients(kIOPMMessageFeatureChange, this);
+ break;
+
+ case kPowerEventReceivedPowerNotification:
+ handlePowerNotification( (UInt32)(uintptr_t) arg0 );
+ break;
+
+ case kPowerEventSystemBootCompleted:
+ if (systemBooting)
+ {
+ systemBooting = false;
+
+ // If lid is closed, re-send lid closed notification
+ // now that booting is complete.
+ if ( clamshellClosed )
+ {
+ handlePowerNotification(kLocalEvalClamshellCommand);
+ }
+ evaluatePolicy( kStimulusAllowSystemSleepChanged );
+ }
+ break;
+
+ case kPowerEventSystemShutdown:
+ if (kOSBooleanTrue == (OSBoolean *) arg0)
+ {
+ /* We set systemShutdown = true during shutdown
+ to prevent sleep at unexpected times while loginwindow is trying
+ to shutdown apps and while the OS is trying to transition to
+ complete power of.
+
+ Set to true during shutdown, as soon as loginwindow shows
+ the "shutdown countdown dialog", through individual app
+ termination, and through black screen kernel shutdown.
+ */
+ systemShutdown = true;
+ } else {
+ /*
+ A shutdown was initiated, but then the shutdown
+ was cancelled, clearing systemShutdown to false here.
+ */
+ systemShutdown = false;
+ }
+ break;
+
+ case kPowerEventUserDisabledSleep:
+ userDisabledAllSleep = (kOSBooleanTrue == (OSBoolean *) arg0);
+ break;
+
+ case kPowerEventRegisterSystemCapabilityClient:
+ if (systemCapabilityNotifier)
+ {
+ systemCapabilityNotifier->release();
+ systemCapabilityNotifier = 0;
+ }
+ if (arg0)
+ {
+ systemCapabilityNotifier = (IONotifier *) arg0;
+ systemCapabilityNotifier->retain();
+ }
+ /* intentional fall-through */
+
+ case kPowerEventRegisterKernelCapabilityClient:
+ if (!_joinedCapabilityClients)
+ _joinedCapabilityClients = OSSet::withCapacity(8);
+ if (arg0)
+ {
+ IONotifier * notify = (IONotifier *) arg0;
+ if (_joinedCapabilityClients)
+ {
+ _joinedCapabilityClients->setObject(notify);
+ synchronizePowerTree( kIOPMSyncNoChildNotify );
+ }
+ notify->release();
+ }
+ break;
+
+ case kPowerEventPolicyStimulus:
+ if (arg0)
+ {
+ int stimulus = (uintptr_t) arg0;
+ evaluatePolicy( stimulus, (uint32_t) arg1 );
+ }
+ break;
+
+ case kPowerEventAssertionCreate:
+ if (pmAssertions) {
+ pmAssertions->handleCreateAssertion((OSData *)arg0);
+ }
+ break;
+
+
+ case kPowerEventAssertionRelease:
+ if (pmAssertions) {
+ pmAssertions->handleReleaseAssertion(arg1);
+ }
+ break;
+
+ case kPowerEventAssertionSetLevel:
+ if (pmAssertions) {
+ pmAssertions->handleSetAssertionLevel(arg1, (IOPMDriverAssertionLevel)(uintptr_t)arg0);
+ }
+ break;
+
+ case kPowerEventQueueSleepWakeUUID:
+ handleQueueSleepWakeUUID((OSObject *)arg0);
+ break;
+ case kPowerEventPublishSleepWakeUUID:
+ handlePublishSleepWakeUUID((bool)arg0);
+ break;
+ }
+}
+
+//******************************************************************************
+// systemPowerEventOccurred
+//
+// The power controller is notifying us of a hardware-related power management
+// event that we must handle.
+//
+// systemPowerEventOccurred covers the same functionality that
+// receivePowerNotification does; it simply provides a richer API for conveying
+// more information.
+//******************************************************************************
+
+IOReturn IOPMrootDomain::systemPowerEventOccurred(
+ const OSSymbol *event,
+ uint32_t intValue)
+{
+ IOReturn attempt = kIOReturnSuccess;
+ OSNumber *newNumber = NULL;
+
+ if (!event)
+ return kIOReturnBadArgument;
+
+ newNumber = OSNumber::withNumber(intValue, 8*sizeof(intValue));
+ if (!newNumber)
+ return kIOReturnInternalError;
+
+ attempt = systemPowerEventOccurred(event, (OSObject *)newNumber);
+
+ newNumber->release();
+
+ return attempt;
+}
+
+IOReturn IOPMrootDomain::systemPowerEventOccurred(
+ const OSSymbol *event,
+ OSObject *value)
+{
+ OSDictionary *thermalsDict = NULL;
+ bool shouldUpdate = true;
+
+ if (!event || !value)
+ return kIOReturnBadArgument;
+
+ // LOCK
+ // We reuse featuresDict Lock because it already exists and guards
+ // the very infrequently used publish/remove feature mechanism; so there's zero rsk
+ // of stepping on that lock.
+ if (featuresDictLock) IOLockLock(featuresDictLock);
+
+ thermalsDict = (OSDictionary *)getProperty(kIOPMRootDomainPowerStatusKey);
+
+ if (thermalsDict && OSDynamicCast(OSDictionary, thermalsDict)) {
+ thermalsDict = OSDictionary::withDictionary(thermalsDict);
+ } else {
+ thermalsDict = OSDictionary::withCapacity(1);
+ }
+
+ if (!thermalsDict) {
+ shouldUpdate = false;
+ goto exit;
+ }
+
+ thermalsDict->setObject (event, value);
+
+ setProperty (kIOPMRootDomainPowerStatusKey, thermalsDict);
+
+ thermalsDict->release();
+
+exit:
+ // UNLOCK
+ if (featuresDictLock) IOLockUnlock(featuresDictLock);
+
+ if (shouldUpdate)
+ messageClients (kIOPMMessageSystemPowerEventOccurred, (void *)NULL);
+
+ return kIOReturnSuccess;
+}
+
+//******************************************************************************
+// receivePowerNotification
+//
+// The power controller is notifying us of a hardware-related power management
+// event that we must handle. This may be a result of an 'environment' interrupt
+// from the power mgt micro.
+//******************************************************************************
+
+IOReturn IOPMrootDomain::receivePowerNotification( UInt32 msg )
+{
+ pmPowerStateQueue->submitPowerEvent(
+ kPowerEventReceivedPowerNotification, (void *) msg );
+ return kIOReturnSuccess;
+}
+
+void IOPMrootDomain::handlePowerNotification( UInt32 msg )
+{
+ bool eval_clamshell = false;
+
+ ASSERT_GATED();
+
+ /*
+ * Local (IOPMrootDomain only) eval clamshell command
+ */
+ if (msg & kLocalEvalClamshellCommand)
+ {
+ eval_clamshell = true;
+ }
+
+ /*
+ * Overtemp
+ */
+ if (msg & kIOPMOverTemp)
+ {
+ MSG("PowerManagement emergency overtemp signal. Going to sleep!");
+ privateSleepSystem (kIOPMSleepReasonThermalEmergency);
+ }
+
+ /*
+ * Sleep Now!
+ */
+ if (msg & kIOPMSleepNow)
+ {
+ privateSleepSystem (kIOPMSleepReasonSoftware);
+ }
+
+ /*
+ * Power Emergency
+ */
+ if (msg & kIOPMPowerEmergency)
+ {
+ lowBatteryCondition = true;
+ privateSleepSystem (kIOPMSleepReasonLowPower);
+ }
+
+ /*
+ * Clamshell OPEN
+ */
+ if (msg & kIOPMClamshellOpened)
+ {
+ // Received clamshel open message from clamshell controlling driver
+ // Update our internal state and tell general interest clients
+ clamshellClosed = false;
+ clamshellExists = true;
+
+ if (msg & kIOPMSetValue)
+ {
+ reportUserInput();
+ }
+
+ // Tell PMCPU
+ informCPUStateChange(kInformLid, 0);
+
+ // Tell general interest clients
+ sendClientClamshellNotification();
+
+ bool aborting = ((lastSleepReason == kIOPMSleepReasonClamshell)
+ || (lastSleepReason == kIOPMSleepReasonIdle)
+ || (lastSleepReason == kIOPMSleepReasonMaintenance));
+ if (aborting) userActivityCount++;
+ DLOG("clamshell tickled %d lastSleepReason %d\n", userActivityCount, lastSleepReason);
+ }
+
+ /*
+ * Clamshell CLOSED
+ * Send the clamshell interest notification since the lid is closing.
+ */
+ if (msg & kIOPMClamshellClosed)
+ {
+ // Received clamshel open message from clamshell controlling driver
+ // Update our internal state and tell general interest clients
+ clamshellClosed = true;
+ clamshellExists = true;
+
+ // Tell PMCPU
+ informCPUStateChange(kInformLid, 1);
+
+ // Tell general interest clients
+ sendClientClamshellNotification();
+
+ // And set eval_clamshell = so we can attempt
+ eval_clamshell = true;
+ }
+
+ /*
+ * Set Desktop mode (sent from graphics)
+ *
+ * -> reevaluate lid state
+ */
+ if (msg & kIOPMSetDesktopMode)
+ {
+ desktopMode = (0 != (msg & kIOPMSetValue));
+ msg &= ~(kIOPMSetDesktopMode | kIOPMSetValue);
+
+ sendClientClamshellNotification();
+
+ // Re-evaluate the lid state
+ if( clamshellClosed )
+ {
+ eval_clamshell = true;
+ }
+ }
+
+ /*
+ * AC Adaptor connected
+ *
+ * -> reevaluate lid state
+ */
+ if (msg & kIOPMSetACAdaptorConnected)
+ {
+ acAdaptorConnected = (0 != (msg & kIOPMSetValue));
+ msg &= ~(kIOPMSetACAdaptorConnected | kIOPMSetValue);
+
+ // Tell CPU PM
+ informCPUStateChange(kInformAC, !acAdaptorConnected);
+
+ // Tell BSD if AC is connected
+ // 0 == external power source; 1 == on battery
+ post_sys_powersource(acAdaptorConnected ? 0:1);
+
+ sendClientClamshellNotification();
+
+ // Re-evaluate the lid state
+ if( clamshellClosed )
+ {
+ eval_clamshell = true;
+ }
+ }
+
+ /*
+ * Enable Clamshell (external display disappear)
+ *
+ * -> reevaluate lid state
+ */
+ if (msg & kIOPMEnableClamshell)
+ {
+ // Re-evaluate the lid state
+ // System should sleep on external display disappearance
+ // in lid closed operation.
+ if( clamshellClosed && (true == clamshellDisabled) )
+ {
+ eval_clamshell = true;
+ }
+
+ clamshellDisabled = false;
+
+ sendClientClamshellNotification();
+ }
+
+ /*
+ * Disable Clamshell (external display appeared)
+ * We don't bother re-evaluating clamshell state. If the system is awake,
+ * the lid is probably open.
+ */
+ if (msg & kIOPMDisableClamshell)
+ {
+ clamshellDisabled = true;
+
+ sendClientClamshellNotification();
+ }
+
+ /*
+ * Evaluate clamshell and SLEEP if appropiate
+ */
+ if ( eval_clamshell && shouldSleepOnClamshellClosed() )
+ {
+
+
+ // SLEEP!
+ privateSleepSystem (kIOPMSleepReasonClamshell);
+ }
+ else if ( eval_clamshell )
+ {
+ evaluatePolicy(kStimulusDarkWakeEvaluate);
+ }
+
+ /*
+ * Power Button
+ */
+ if (msg & kIOPMPowerButton)
+ {
+ if (!wranglerAsleep)
+ {
+ OSString *pbs = OSString::withCString("DisablePowerButtonSleep");
+ // Check that power button sleep is enabled
+ if( pbs ) {
+ if( kOSBooleanTrue != getProperty(pbs))
+ privateSleepSystem (kIOPMSleepReasonPowerButton);
+ }
+ }
+ else
+ reportUserInput();
+ }
+}
+
+//******************************************************************************
+// evaluatePolicy
+//
+// Evaluate root-domain policy in response to external changes.
+//******************************************************************************
+
+void IOPMrootDomain::evaluatePolicy( int stimulus, uint32_t arg )
+{
+ union {
+ struct {
+ int idleSleepEnabled : 1;
+ int idleSleepDisabled : 1;
+ int displaySleep : 1;
+ int sleepDelayChanged : 1;
+ int evaluateDarkWake : 1;
+ } bit;
+ uint32_t u32;
+ } flags;
+
+ DLOG("evaluatePolicy( %d, 0x%x )\n", stimulus, arg);
+
+ ASSERT_GATED();
+ flags.u32 = 0;
+
+ switch (stimulus)
+ {
+ case kStimulusDisplayWranglerSleep:
+ if (!wranglerAsleep)
+ {
+ wranglerAsleep = true;
+ clock_get_uptime(&wranglerSleepTime);
+ flags.bit.displaySleep = true;
+ }
+ break;
+
+ case kStimulusDisplayWranglerWake:
+ wranglerAsleep = false;
+ flags.bit.idleSleepDisabled = true;
+ break;
+
+ case kStimulusAggressivenessChanged:
+ {
+ unsigned long minutesToIdleSleep = 0;
+ unsigned long minutesToDisplayDim = 0;
+ unsigned long minutesDelta = 0;
+
+ // Fetch latest display and system sleep slider values.
+ getAggressiveness(kPMMinutesToSleep, &minutesToIdleSleep);
+ getAggressiveness(kPMMinutesToDim, &minutesToDisplayDim);
+ DLOG("aggressiveness changed: system %u->%u, display %u\n",
+ (uint32_t) sleepSlider,
+ (uint32_t) minutesToIdleSleep,
+ (uint32_t) minutesToDisplayDim);
+
+ DLOG("idle time -> %ld secs (ena %d)\n",
+ idleSeconds, (minutesToIdleSleep != 0));
+
+ if (0x7fffffff == minutesToIdleSleep)
+ minutesToIdleSleep = idleSeconds;
+
+ // How long to wait before sleeping the system once
+ // the displays turns off is indicated by 'extraSleepDelay'.
+
+ if ( minutesToIdleSleep > minutesToDisplayDim )
+ minutesDelta = minutesToIdleSleep - minutesToDisplayDim;
+
+ if ((sleepSlider == 0) && (minutesToIdleSleep != 0))
+ flags.bit.idleSleepEnabled = true;
+
+ if ((sleepSlider != 0) && (minutesToIdleSleep == 0))
+ flags.bit.idleSleepDisabled = true;
+
+ if ((minutesDelta != extraSleepDelay) &&
+ !flags.bit.idleSleepEnabled && !flags.bit.idleSleepDisabled)
+ flags.bit.sleepDelayChanged = true;
+
+ if (systemDarkWake && !darkWakeToSleepASAP &&
+ (flags.bit.idleSleepEnabled || flags.bit.idleSleepDisabled))
+ {
+ // Reconsider decision to remain in dark wake
+ flags.bit.evaluateDarkWake = true;
+ }
+
+ sleepSlider = minutesToIdleSleep;
+ extraSleepDelay = minutesDelta;
+ } break;
+
+ case kStimulusDemandSystemSleep:
+ changePowerStateWithOverrideTo( SLEEP_STATE );
+ break;
+
+ case kStimulusAllowSystemSleepChanged:
+ // FIXME: de-compose to change flags.
+ adjustPowerState();
+ break;
+
+ case kStimulusDarkWakeActivityTickle:
+ if (false == wranglerTickled)
+ {
+ uint32_t options = 0;
+ IOService * pciRoot = 0;
+
+ if (rejectWranglerTickle)
+ {
+ DLOG("rejected tickle, type %u capability %x:%x\n",
+ _systemTransitionType,
+ _currentCapability, _pendingCapability);
+ break;
+ }
+
+ _desiredCapability |=
+ (kIOPMSystemCapabilityGraphics |
+ kIOPMSystemCapabilityAudio);
+
+ if ((kSystemTransitionWake == _systemTransitionType) &&
+ !(_pendingCapability & kIOPMSystemCapabilityGraphics) &&
+ !graphicsSuppressed)
+ {
+ DLOG("Promoting to full wake\n");
+
+ // Elevate to full wake while waking up to dark wake.
+ // PM will hold off notifying the graphics subsystem about
+ // system wake as late as possible, so if a HID event does
+ // arrive, we can turn on graphics on this wake cycle, and
+ // not have to wait till the following cycle. That latency
+ // can be huge on some systems. However, once any graphics
+ // suppression has taken effect, it is too late. All other
+ // graphics devices must be similarly suppressed. But the
+ // delay till the following cycle should be very short.
+
+ _pendingCapability |=
+ (kIOPMSystemCapabilityGraphics |
+ kIOPMSystemCapabilityAudio);
+
+ // Immediately bring up audio and graphics.
+ pciRoot = pciHostBridgeDriver;
+
+ // Notify clients about full wake.
+ _systemMessageClientMask = kSystemMessageClientAll;
+ tellClients(kIOMessageSystemWillPowerOn);
+ }
+
+ // Unsafe to cancel once graphics was powered.
+ // If system woke from dark wake, the return to sleep can
+ // be cancelled. But "awake -> dark -> sleep" transition
+ // cannot be cancelled.
+
+ if (!CAP_HIGHEST(kIOPMSystemCapabilityGraphics)) {
+ options |= kIOPMSyncCancelPowerDown;
+ }
+
+ synchronizePowerTree( options, pciRoot );
+ wranglerTickled = true;
+ // IOGraphics doesn't lit the display even though graphics
+ // is enanbled in kIOMessageSystemCapabilityChange message(radar 9502104)
+ // So, do an explicit activity tickle
+ if(wrangler)
+ wrangler->activityTickle(0,0);
+
+ if (logWranglerTickle)
+ {
+ AbsoluteTime now;
+ uint64_t nsec;
+
+ clock_get_uptime(&now);
+ SUB_ABSOLUTETIME(&now, &systemWakeTime);
+ absolutetime_to_nanoseconds(now, &nsec);
+ MSG("HID tickle %u ms\n",
+ ((int)((nsec) / 1000000ULL)));
+ logWranglerTickle = false;
+ }
+ }
+ break;
+
+ case kStimulusDarkWakeEntry:
+ case kStimulusDarkWakeReentry:
+ // Any system transitions since the last dark wake transition
+ // will invalid the stimulus.
+
+ if (arg == _systemStateGeneration)
+ {
+ DLOG("dark wake entry\n");
+ systemDarkWake = true;
+ wranglerAsleep = true;
+ clock_get_uptime(&wranglerSleepTime);
+
+ // Always accelerate disk spindown while in dark wake,
+ // even if system does not support/allow sleep.
+
+ cancelIdleSleepTimer();
+ setQuickSpinDownTimeout();
+ flags.bit.evaluateDarkWake = true;
+ }
+ break;
+
+ case kStimulusDarkWakeEvaluate:
+ if (systemDarkWake)
+ {
+ flags.bit.evaluateDarkWake = true;
+ }
+#if !DARK_TO_FULL_EVALUATE_CLAMSHELL
+ else
+ {
+ // Not through kLocalEvalClamshellCommand to avoid loop.
+ if (clamshellClosed && shouldSleepOnClamshellClosed() &&
+ checkSystemCanSleep(true))
+ {
+ privateSleepSystem( kIOPMSleepReasonClamshell );
+ }
+ }
+#endif
+ break;
+
+ } /* switch(stimulus) */
+
+ if (flags.bit.evaluateDarkWake && !wranglerTickled)
+ {
+ if (darkWakeToSleepASAP ||
+ (clamshellClosed && !(desktopMode && acAdaptorConnected)))
+ {
+ // System currently in dark wake, and no children and
+ // assertion prevent system sleep.
+
+ if (checkSystemCanSleep(true))
+ {
+ if (lowBatteryCondition)
+ {
+ lastSleepReason = kIOPMSleepReasonLowPower;
+ setProperty(kRootDomainSleepReasonKey, kIOPMLowPowerSleepKey);
+ }
+ else if (darkWakeMaintenance)
+ {
+ lastSleepReason = kIOPMSleepReasonMaintenance;
+ setProperty(kRootDomainSleepReasonKey, kIOPMMaintenanceSleepKey);
+ }
+ changePowerStateWithOverrideTo( SLEEP_STATE );
+ }
+ else
+ {
+ // Parked in dark wake, a tickle will return to full wake
+ rejectWranglerTickle = false;
+ }
+ } else // non-maintenance (network) dark wake
+ {
+ if (checkSystemCanSleep(true))
+ {
+ // Release power clamp, and wait for children idle.
+ adjustPowerState(true);
+ }
+ else
+ {
+ changePowerStateToPriv(ON_STATE);
+ }
+ rejectWranglerTickle = false;
+ }
+ }
+
+ if (systemDarkWake)
+ {
+ // The rest are irrelevant while system is in dark wake.
+ flags.u32 = 0;
+ }
+
+ if (flags.bit.displaySleep || flags.bit.sleepDelayChanged)
+ {
+ bool cancelQuickSpindown = false;
+
+ if (flags.bit.sleepDelayChanged)
+ {
+ DLOG("extra sleep timer changed\n");
+ cancelIdleSleepTimer();
+ cancelQuickSpindown = true;
+ }
+ else
+ {
+ DLOG("display sleep\n");
+ }
+
+ if (wranglerAsleep && !wranglerSleepIgnored)
+ {
+ if ( extraSleepDelay )
+ {
+ // Start a timer here if the System Sleep timer is greater
+ // than the Display Sleep timer.
+
+ startIdleSleepTimer(gRootDomain->extraSleepDelay * 60);
+ }
+ else if ( sleepSlider )
+ {
+ // Accelerate disk spindown if system sleep and display sleep
+ // sliders are set to the same value (e.g. both set to 5 min),
+ // and display is about to go dark. Check the system sleep is
+ // not set to never sleep. Disk sleep setting is ignored.
+
+ setQuickSpinDownTimeout();
+ cancelQuickSpindown = false;
+ }
+ }
+
+ if (cancelQuickSpindown)
+ restoreUserSpinDownTimeout();
+ }
+
+ if (flags.bit.idleSleepEnabled)
+ {
+ DLOG("idle sleep timer enabled\n");
+ if (!wrangler)
+ {
+ changePowerStateToPriv(ON_STATE);
+ if (idleSeconds)
+ {
+ startIdleSleepTimer( idleSeconds );
+ }
+ }
+ else
+ {
+ // Start idle sleep timer if wrangler went to sleep
+ // while system sleep was disabled. Disk spindown is
+ // accelerated upon timer expiration.
+
+ if (wranglerAsleep)
+ {
+ AbsoluteTime now;
+ uint64_t nanos;
+ uint32_t minutesSinceDisplaySleep = 0;
+ uint32_t sleepDelay;
+
+ clock_get_uptime(&now);
+ if (CMP_ABSOLUTETIME(&now, &wranglerSleepTime) > 0)
+ {
+ SUB_ABSOLUTETIME(&now, &wranglerSleepTime);
+ absolutetime_to_nanoseconds(now, &nanos);
+ minutesSinceDisplaySleep = nanos / (60000000000ULL);
+ }
+
+ if (extraSleepDelay > minutesSinceDisplaySleep)
+ {
+ sleepDelay = extraSleepDelay - minutesSinceDisplaySleep;
+ }
+ else
+ {
+ sleepDelay = 1; // 1 min
+ }
+
+ startIdleSleepTimer(sleepDelay * 60);
+ DLOG("display slept %u min, set idle timer to %u min\n",
+ minutesSinceDisplaySleep, sleepDelay);
+ }
+ }
+ }
+
+ if (flags.bit.idleSleepDisabled)
+ {
+ DLOG("idle sleep timer disabled\n");
+ cancelIdleSleepTimer();
+ restoreUserSpinDownTimeout();
+ adjustPowerState();
+ }
+}
+
+// MARK: -
+// MARK: Statistics
+
+//******************************************************************************
+// pmStats
+//
+//******************************************************************************
+
+void IOPMrootDomain::pmStatsRecordEvent(
+ int eventIndex,
+ AbsoluteTime timestamp)
+{
+ bool starting = eventIndex & kIOPMStatsEventStartFlag ? true:false;
+ bool stopping = eventIndex & kIOPMStatsEventStopFlag ? true:false;
+ uint64_t delta;
+ uint64_t nsec;
+
+ eventIndex &= ~(kIOPMStatsEventStartFlag | kIOPMStatsEventStopFlag);
+
+ absolutetime_to_nanoseconds(timestamp, &nsec);
+
+ switch (eventIndex) {
+ case kIOPMStatsHibernateImageWrite:
+ if (starting)
+ pmStats.hibWrite.start = nsec;
+ else if (stopping)
+ pmStats.hibWrite.stop = nsec;
+
+ if (stopping) {
+ delta = pmStats.hibWrite.stop - pmStats.hibWrite.start;
+ IOLog("PMStats: Hibernate write took %qd ms\n", delta/1000000ULL);
+ }
+ break;
+ case kIOPMStatsHibernateImageRead:
+ if (starting)
+ pmStats.hibRead.start = nsec;
+ else if (stopping)
+ pmStats.hibRead.stop = nsec;
+
+ if (stopping) {
+ delta = pmStats.hibRead.stop - pmStats.hibRead.start;
+ IOLog("PMStats: Hibernate read took %qd ms\n", delta/1000000ULL);
+ }
+ break;
+ }
+}
+
+/*
+ * Appends a record of the application response to
+ * IOPMrootDomain::pmStatsAppResponses
+ */
+void IOPMrootDomain::pmStatsRecordApplicationResponse(
+ const OSSymbol *response,
+ const char *name,
+ int messageType,
+ uint32_t delay_ms,
+ int app_pid)
+{
+ OSDictionary *responseDescription = NULL;
+ OSNumber *delayNum = NULL;
+ OSNumber *pidNum = NULL;
+ OSNumber *msgNum = NULL;
+ const OSSymbol *appname;
+ const OSSymbol *entryName;
+ OSObject *entryType;
+ int i;
+
+ if (!pmStatsAppResponses || pmStatsAppResponses->getCount() > 50)
+ return;
+
+ i = 0;
+ while ((responseDescription = (OSDictionary *) pmStatsAppResponses->getObject(i++)))
+ {
+ entryType = responseDescription->getObject(_statsResponseTypeKey);
+ entryName = (OSSymbol *) responseDescription->getObject(_statsNameKey);
+ if (entryName && (entryType == response) && entryName->isEqualTo(name))
+ {
+ OSNumber * entryValue;
+ entryValue = (OSNumber *) responseDescription->getObject(_statsTimeMSKey);
+ if (entryValue && (entryValue->unsigned32BitValue() < delay_ms))
+ entryValue->setValue(delay_ms);
+ return;
+ }
+ }
+
+ responseDescription = OSDictionary::withCapacity(5);
+ if (responseDescription)
+ {
+ if (response) {
+ responseDescription->setObject(_statsResponseTypeKey, response);
+ }
+
+ if (messageType != 0) {
+ msgNum = OSNumber::withNumber(messageType, 32);
+ if (msgNum) {
+ responseDescription->setObject(_statsMessageTypeKey, msgNum);
+ msgNum->release();
+ }
+ }
+
+ if (name && (strlen(name) > 0))
+ {
+ appname = OSSymbol::withCString(name);
+ if (appname) {
+ responseDescription->setObject(_statsNameKey, appname);
+ appname->release();
+ }
+ }
+
+ if (app_pid != -1) {
+ pidNum = OSNumber::withNumber(app_pid, 32);
+ if (pidNum) {
+ responseDescription->setObject(_statsPIDKey, pidNum);
+ pidNum->release();
+ }
+ }
+
+ delayNum = OSNumber::withNumber(delay_ms, 32);
+ if (delayNum) {
+ responseDescription->setObject(_statsTimeMSKey, delayNum);
+ delayNum->release();
+ }
+
+ if (pmStatsAppResponses) {
+ pmStatsAppResponses->setObject(responseDescription);
+ }
+
+ responseDescription->release();
+ }
+ return;
+}
+
+// MARK: -
+// MARK: PMTraceWorker
+
+//******************************************************************************
+// TracePoint support
+//
+//******************************************************************************
+
+#define kIOPMRegisterNVRAMTracePointHandlerKey \
+ "IOPMRegisterNVRAMTracePointHandler"
+
+IOReturn IOPMrootDomain::callPlatformFunction(
+ const OSSymbol * functionName,
+ bool waitForFunction,
+ void * param1, void * param2,
+ void * param3, void * param4 )
+{
+ if (pmTracer && functionName &&
+ functionName->isEqualTo(kIOPMRegisterNVRAMTracePointHandlerKey) &&
+ !pmTracer->tracePointHandler && !pmTracer->tracePointTarget)
+ {
+ uint32_t tracePointPhases, tracePointPCI;
+ uint64_t statusCode;
+
+ pmTracer->tracePointHandler = (IOPMTracePointHandler) param1;
+ pmTracer->tracePointTarget = (void *) param2;
+ tracePointPCI = (uint32_t)(uintptr_t) param3;
+ tracePointPhases = (uint32_t)(uintptr_t) param4;
+ statusCode = (((uint64_t)tracePointPCI) << 32) | tracePointPhases;
+ if ((tracePointPhases >> 24) != kIOPMTracePointSystemUp)
+ {
+ MSG("Sleep failure code 0x%08x 0x%08x\n",
+ tracePointPCI, tracePointPhases);
+ }
+ setProperty(kIOPMSleepWakeFailureCodeKey, statusCode, 64);
+ pmTracer->tracePointHandler( pmTracer->tracePointTarget, 0, 0 );
+
+ return kIOReturnSuccess;
+ }
+
+ return super::callPlatformFunction(
+ functionName, waitForFunction, param1, param2, param3, param4);
+}
+
+void IOPMrootDomain::tracePoint( uint8_t point )
+{
+ if (!systemBooting)
+ pmTracer->tracePoint(point);
+}
+
+void IOPMrootDomain::tracePoint( uint8_t point, uint8_t data )
+{
+ if (!systemBooting)
+ pmTracer->tracePoint(point, data);
+}
+
+void IOPMrootDomain::traceDetail( uint32_t detail )
+{
+ if (!systemBooting)
+ pmTracer->traceDetail( detail );
+}
+
+//******************************************************************************
+// PMTraceWorker Class
+//
+//******************************************************************************
+
+#undef super
+#define super OSObject
+OSDefineMetaClassAndStructors(PMTraceWorker, OSObject)
+
+#define kPMBestGuessPCIDevicesCount 25
+#define kPMMaxRTCBitfieldSize 32
+
+PMTraceWorker *PMTraceWorker::tracer(IOPMrootDomain *owner)
+{
+ PMTraceWorker *me;
+
+ me = OSTypeAlloc( PMTraceWorker );
+ if (!me || !me->init())
+ {
+ return NULL;
+ }
+
+ DLOG("PMTraceWorker %p\n", me);
+
+ // Note that we cannot instantiate the PCI device -> bit mappings here, since
+ // the IODeviceTree has not yet been created by IOPlatformExpert. We create
+ // this dictionary lazily.
+ me->owner = owner;
+ me->pciDeviceBitMappings = NULL;
+ me->pciMappingLock = IOLockAlloc();
+ me->tracePhase = kIOPMTracePointSystemUp;
+ me->loginWindowPhase = 0;
+ me->traceData32 = 0;
+ return me;
+}
+
+void PMTraceWorker::RTC_TRACE(void)
+{
+ if (tracePointHandler && tracePointTarget)
+ {
+ uint32_t wordA;
+
+ wordA = (tracePhase << 24) | (loginWindowPhase << 16) |
+ (traceData8 << 8);
+
+ tracePointHandler( tracePointTarget, traceData32, wordA );
+ _LOG("RTC_TRACE wrote 0x%08x 0x%08x\n", traceData32, wordA);
+ }
+}
+
+int PMTraceWorker::recordTopLevelPCIDevice(IOService * pciDevice)
+{
+ const OSSymbol * deviceName;
+ int index = -1;
+
+ IOLockLock(pciMappingLock);
+
+ if (!pciDeviceBitMappings)
+ {
+ pciDeviceBitMappings = OSArray::withCapacity(kPMBestGuessPCIDevicesCount);
+ if (!pciDeviceBitMappings)
+ goto exit;
+ }
+
+ // Check for bitmask overflow.
+ if (pciDeviceBitMappings->getCount() >= kPMMaxRTCBitfieldSize)
+ goto exit;
+
+ if ((deviceName = pciDevice->copyName()) &&
+ (pciDeviceBitMappings->getNextIndexOfObject(deviceName, 0) == (unsigned int)-1) &&
+ pciDeviceBitMappings->setObject(deviceName))
+ {
+ index = pciDeviceBitMappings->getCount() - 1;
+ _LOG("PMTrace PCI array: set object %s => %d\n",
+ deviceName->getCStringNoCopy(), index);
+ }
+ if (deviceName)
+ deviceName->release();
+ if (!addedToRegistry && (index >= 0))
+ addedToRegistry = owner->setProperty("PCITopLevel", this);
+
+exit:
+ IOLockUnlock(pciMappingLock);
+ return index;
+}
+
+bool PMTraceWorker::serialize(OSSerialize *s) const
+{
+ bool ok = false;
+ if (pciDeviceBitMappings)
+ {
+ IOLockLock(pciMappingLock);
+ ok = pciDeviceBitMappings->serialize(s);
+ IOLockUnlock(pciMappingLock);
+ }
+ return ok;
+}
+
+void PMTraceWorker::tracePoint(uint8_t phase)
+{
+ // clear trace detail when phase begins
+ if (tracePhase != phase)
+ traceData32 = 0;
+
+ tracePhase = phase;
+
+ DLOG("trace point 0x%02x\n", tracePhase);
+ RTC_TRACE();
+}
+
+void PMTraceWorker::tracePoint(uint8_t phase, uint8_t data8)
+{
+ // clear trace detail when phase begins
+ if (tracePhase != phase)
+ traceData32 = 0;
+
+ tracePhase = phase;
+ traceData8 = data8;
+
+ DLOG("trace point 0x%02x 0x%02x\n", tracePhase, traceData8);
+ RTC_TRACE();
+}
+
+void PMTraceWorker::traceDetail(uint32_t detail)
+{
+ if (kIOPMTracePointSleepPriorityClients != tracePhase)
+ return;
+
+ traceData32 = detail;
+ DLOG("trace point 0x%02x detail 0x%08x\n", tracePhase, traceData32);
+
+ RTC_TRACE();
+}
+
+void PMTraceWorker::traceLoginWindowPhase(uint8_t phase)
+{
+ loginWindowPhase = phase;
+
+ DLOG("loginwindow tracepoint 0x%02x\n", loginWindowPhase);
+ RTC_TRACE();
+}
+
+void PMTraceWorker::tracePCIPowerChange(
+ change_t type, IOService *service, uint32_t changeFlags, uint32_t bitNum)
+{
+ uint32_t bitMask;
+ uint32_t expectedFlag;
+
+ // Ignore PCI changes outside of system sleep/wake.
+ if ((kIOPMTracePointSleepPowerPlaneDrivers != tracePhase) &&
+ (kIOPMTracePointWakePowerPlaneDrivers != tracePhase))
+ return;
+
+ // Only record the WillChange transition when going to sleep,
+ // and the DidChange on the way up.
+ changeFlags &= (kIOPMDomainWillChange | kIOPMDomainDidChange);
+ expectedFlag = (kIOPMTracePointSleepPowerPlaneDrivers == tracePhase) ?
+ kIOPMDomainWillChange : kIOPMDomainDidChange;
+ if (changeFlags != expectedFlag)
+ return;
+
+ // Mark this device off in our bitfield
+ if (bitNum < kPMMaxRTCBitfieldSize)
+ {
+ bitMask = (1 << bitNum);
+
+ if (kPowerChangeStart == type)
+ {
+ traceData32 |= bitMask;
+ _LOG("PMTrace: Device %s started - bit %2d mask 0x%08x => 0x%08x\n",
+ service->getName(), bitNum, bitMask, traceData32);
+ }
+ else
+ {
+ traceData32 &= ~bitMask;
+ _LOG("PMTrace: Device %s finished - bit %2d mask 0x%08x => 0x%08x\n",
+ service->getName(), bitNum, bitMask, traceData32);
+ }
+
+ RTC_TRACE();
+ }
+}
+
+// MARK: -
+// MARK: PMHaltWorker
+
+//******************************************************************************
+// PMHaltWorker Class
+//
+//******************************************************************************
+
+static unsigned int gPMHaltBusyCount;
+static unsigned int gPMHaltIdleCount;
+static int gPMHaltDepth;
+static unsigned long gPMHaltEvent;
+static IOLock * gPMHaltLock = 0;
+static OSArray * gPMHaltArray = 0;
+static const OSSymbol * gPMHaltClientAcknowledgeKey = 0;
+
+PMHaltWorker * PMHaltWorker::worker( void )
+{
+ PMHaltWorker * me;
+ IOThread thread;
+
+ do {
+ me = OSTypeAlloc( PMHaltWorker );
+ if (!me || !me->init())
+ break;
+
+ me->lock = IOLockAlloc();
+ if (!me->lock)
+ break;
+
+ DLOG("PMHaltWorker %p\n", me);
+ me->retain(); // thread holds extra retain
+ if (KERN_SUCCESS != kernel_thread_start(&PMHaltWorker::main, (void *) me, &thread))
+ {
+ me->release();
+ break;
+ }
+ thread_deallocate(thread);
+ return me;
+
+ } while (false);
+
+ if (me) me->release();
+ return 0;
+}
+
+void PMHaltWorker::free( void )
+{
+ DLOG("PMHaltWorker free %p\n", this);
+ if (lock)
+ {
+ IOLockFree(lock);
+ lock = 0;
+ }
+ return OSObject::free();
+}
+
+void PMHaltWorker::main( void * arg, wait_result_t waitResult )
+{
+ PMHaltWorker * me = (PMHaltWorker *) arg;
+
+ IOLockLock( gPMHaltLock );
+ gPMHaltBusyCount++;
+ me->depth = gPMHaltDepth;
+ IOLockUnlock( gPMHaltLock );
+
+ while (me->depth >= 0)
+ {
+ PMHaltWorker::work( me );
+
+ IOLockLock( gPMHaltLock );
+ if (++gPMHaltIdleCount >= gPMHaltBusyCount)
+ {
+ // This is the last thread to finish work on this level,
+ // inform everyone to start working on next lower level.
+ gPMHaltDepth--;
+ me->depth = gPMHaltDepth;
+ gPMHaltIdleCount = 0;
+ thread_wakeup((event_t) &gPMHaltIdleCount);
+ }
+ else
+ {
+ // One or more threads are still working on this level,
+ // this thread must wait.
+ me->depth = gPMHaltDepth - 1;
+ do {
+ IOLockSleep(gPMHaltLock, &gPMHaltIdleCount, THREAD_UNINT);
+ } while (me->depth != gPMHaltDepth);
+ }
+ IOLockUnlock( gPMHaltLock );
+ }
+
+ // No more work to do, terminate thread
+ DLOG("All done for worker: %p (visits = %u)\n", me, me->visits);
+ thread_wakeup( &gPMHaltDepth );
+ me->release();
+}
+
+void PMHaltWorker::work( PMHaltWorker * me )
+{
+ IOService * service;
+ OSSet * inner;
+ AbsoluteTime startTime;
+ UInt32 deltaTime;
+ bool timeout;
+
+ while (true)
+ {
+ service = 0;
+ timeout = false;
+
+ // Claim an unit of work from the shared pool
+ IOLockLock( gPMHaltLock );
+ inner = (OSSet *)gPMHaltArray->getObject(me->depth);
+ if (inner)
+ {
+ service = (IOService *)inner->getAnyObject();
+ if (service)
+ {
+ service->retain();
+ inner->removeObject(service);
+ }
+ }
+ IOLockUnlock( gPMHaltLock );
+ if (!service)
+ break; // no more work at this depth
+
+ clock_get_uptime(&startTime);
+
+ if (!service->isInactive() &&
+ service->setProperty(gPMHaltClientAcknowledgeKey, me))
+ {
+ IOLockLock(me->lock);
+ me->startTime = startTime;
+ me->service = service;
+ me->timeout = false;
+ IOLockUnlock(me->lock);
+
+ service->systemWillShutdown( gPMHaltEvent );
+
+ // Wait for driver acknowledgement
+ IOLockLock(me->lock);
+ while (service->getProperty(gPMHaltClientAcknowledgeKey))
+ {
+ IOLockSleep(me->lock, me, THREAD_UNINT);
+ }
+ me->service = 0;
+ timeout = me->timeout;
+ IOLockUnlock(me->lock);
+ }
+
+ deltaTime = computeDeltaTimeMS(&startTime);
+ if ((deltaTime > kPMHaltTimeoutMS) || timeout ||
+ (gIOKitDebug & kIOLogPMRootDomain))
+ {
+ LOG("%s driver %s (%p) took %u ms\n",
+ (gPMHaltEvent == kIOMessageSystemWillPowerOff) ?
+ "PowerOff" : "Restart",
+ service->getName(), service,
+ (uint32_t) deltaTime );
+ }
+
+ service->release();
+ me->visits++;
+ }
+}
+
+void PMHaltWorker::checkTimeout( PMHaltWorker * me, AbsoluteTime * now )
+{
+ UInt64 nano;
+ AbsoluteTime startTime;
+ AbsoluteTime endTime;
+
+ endTime = *now;
+
+ IOLockLock(me->lock);
+ if (me->service && !me->timeout)
+ {
+ startTime = me->startTime;
+ nano = 0;
+ if (CMP_ABSOLUTETIME(&endTime, &startTime) > 0)
+ {
+ SUB_ABSOLUTETIME(&endTime, &startTime);
+ absolutetime_to_nanoseconds(endTime, &nano);
+ }
+ if (nano > 3000000000ULL)
+ {
+ me->timeout = true;
+ MSG("%s still waiting on %s\n",
+ (gPMHaltEvent == kIOMessageSystemWillPowerOff) ?
+ "PowerOff" : "Restart",
+ me->service->getName());
+ }
+ }
+ IOLockUnlock(me->lock);
+}
+
+
+//******************************************************************************
+// acknowledgeSystemWillShutdown
+//
+// Acknowledgement from drivers that they have prepared for shutdown/restart.
+//******************************************************************************
+
+void IOPMrootDomain::acknowledgeSystemWillShutdown( IOService * from )
+{
+ PMHaltWorker * worker;
+ OSObject * prop;
+
+ if (!from)
+ return;
+
+ //DLOG("%s acknowledged\n", from->getName());
+ prop = from->copyProperty( gPMHaltClientAcknowledgeKey );
+ if (prop)
+ {
+ worker = (PMHaltWorker *) prop;
+ IOLockLock(worker->lock);
+ from->removeProperty( gPMHaltClientAcknowledgeKey );
+ thread_wakeup((event_t) worker);
+ IOLockUnlock(worker->lock);
+ worker->release();
+ }
+ else
+ {
+ DLOG("%s acknowledged without worker property\n",
+ from->getName());
+ }
+}
+
+
+//******************************************************************************
+// notifySystemShutdown
+//
+// Notify all objects in PM tree that system will shutdown or restart
+//******************************************************************************
+
+static void
+notifySystemShutdown( IOService * root, unsigned long event )
+{
+#define PLACEHOLDER ((OSSet *)gPMHaltArray)
+ IORegistryIterator * iter;
+ IORegistryEntry * entry;
+ IOService * node;
+ OSSet * inner;
+ PMHaltWorker * workers[kPMHaltMaxWorkers];
+ AbsoluteTime deadline;
+ unsigned int totalNodes = 0;
+ unsigned int depth;
+ unsigned int rootDepth;
+ unsigned int numWorkers;
+ unsigned int count;
+ int waitResult;
+ void * baseFunc;
+ bool ok;
+
+ DLOG("%s event = %lx\n", __FUNCTION__, event);
+
+ baseFunc = OSMemberFunctionCast(void *, root, &IOService::systemWillShutdown);
+
+ // Iterate the entire PM tree starting from root
+
+ rootDepth = root->getDepth( gIOPowerPlane );
+ if (!rootDepth) goto done;
+
+ // debug - for repeated test runs
+ while (PMHaltWorker::metaClass->getInstanceCount())
+ IOSleep(1);
+
+ if (!gPMHaltArray)
+ {
+ gPMHaltArray = OSArray::withCapacity(40);
+ if (!gPMHaltArray) goto done;
+ }
+ else // debug
+ gPMHaltArray->flushCollection();
+
+ if (!gPMHaltLock)
+ {
+ gPMHaltLock = IOLockAlloc();
+ if (!gPMHaltLock) goto done;
+ }
+
+ if (!gPMHaltClientAcknowledgeKey)
+ {
+ gPMHaltClientAcknowledgeKey =
+ OSSymbol::withCStringNoCopy("PMShutdown");
+ if (!gPMHaltClientAcknowledgeKey) goto done;
+ }
+
+ gPMHaltEvent = event;
+
+ // Depth-first walk of PM plane
+
+ iter = IORegistryIterator::iterateOver(
+ root, gIOPowerPlane, kIORegistryIterateRecursively);
+
+ if (iter)
+ {
+ while ((entry = iter->getNextObject()))
+ {
+ node = OSDynamicCast(IOService, entry);
+ if (!node)
+ continue;
+
+ if (baseFunc ==
+ OSMemberFunctionCast(void *, node, &IOService::systemWillShutdown))
+ continue;
+
+ depth = node->getDepth( gIOPowerPlane );
+ if (depth <= rootDepth)
+ continue;
+
+ ok = false;
+
+ // adjust to zero based depth
+ depth -= (rootDepth + 1);
+
+ // gPMHaltArray is an array of containers, each container
+ // refers to nodes with the same depth.
+
+ count = gPMHaltArray->getCount();
+ while (depth >= count)
+ {
+ // expand array and insert placeholders
+ gPMHaltArray->setObject(PLACEHOLDER);
+ count++;
+ }
+ count = gPMHaltArray->getCount();
+ if (depth < count)
+ {
+ inner = (OSSet *)gPMHaltArray->getObject(depth);
+ if (inner == PLACEHOLDER)
+ {
+ inner = OSSet::withCapacity(40);
+ if (inner)
+ {
+ gPMHaltArray->replaceObject(depth, inner);
+ inner->release();
+ }
+ }
+
+ // PM nodes that appear more than once in the tree will have
+ // the same depth, OSSet will refuse to add the node twice.
+ if (inner)
+ ok = inner->setObject(node);
+ }
+ if (!ok)
+ DLOG("Skipped PM node %s\n", node->getName());
+ }
+ iter->release();
+ }
+
+ // debug only
+ for (int i = 0; (inner = (OSSet *)gPMHaltArray->getObject(i)); i++)
+ {
+ count = 0;
+ if (inner != PLACEHOLDER)
+ count = inner->getCount();
+ DLOG("Nodes at depth %u = %u\n", i, count);
+ }
+
+ // strip placeholders (not all depths are populated)
+ numWorkers = 0;
+ for (int i = 0; (inner = (OSSet *)gPMHaltArray->getObject(i)); )
+ {
+ if (inner == PLACEHOLDER)
+ {
+ gPMHaltArray->removeObject(i);
+ continue;
+ }
+ count = inner->getCount();
+ if (count > numWorkers)
+ numWorkers = count;
+ totalNodes += count;
+ i++;
+ }
+
+ if (gPMHaltArray->getCount() == 0 || !numWorkers)
+ goto done;
+
+ gPMHaltBusyCount = 0;
+ gPMHaltIdleCount = 0;
+ gPMHaltDepth = gPMHaltArray->getCount() - 1;
+
+ // Create multiple workers (and threads)
+
+ if (numWorkers > kPMHaltMaxWorkers)
+ numWorkers = kPMHaltMaxWorkers;
+
+ DLOG("PM nodes = %u, maxDepth = %u, workers = %u\n",
+ totalNodes, gPMHaltArray->getCount(), numWorkers);
+
+ for (unsigned int i = 0; i < numWorkers; i++)
+ workers[i] = PMHaltWorker::worker();
+
+ // Wait for workers to exhaust all available work
+
+ IOLockLock(gPMHaltLock);
+ while (gPMHaltDepth >= 0)
+ {
+ clock_interval_to_deadline(1000, kMillisecondScale, &deadline);
+
+ waitResult = IOLockSleepDeadline(
+ gPMHaltLock, &gPMHaltDepth, deadline, THREAD_UNINT);
+ if (THREAD_TIMED_OUT == waitResult)
+ {
+ AbsoluteTime now;
+ clock_get_uptime(&now);
+
+ IOLockUnlock(gPMHaltLock);
+ for (unsigned int i = 0 ; i < numWorkers; i++)
+ {
+ if (workers[i])
+ PMHaltWorker::checkTimeout(workers[i], &now);
+ }
+ IOLockLock(gPMHaltLock);
+ }
+ }
+ IOLockUnlock(gPMHaltLock);
+
+ // Release all workers
+
+ for (unsigned int i = 0; i < numWorkers; i++)
+ {
+ if (workers[i])
+ workers[i]->release();
+ // worker also retained by it's own thread
+ }
+
+done:
+ DLOG("%s done\n", __FUNCTION__);
+ return;
+}
+
+//*********************************************************************************
+// Sleep/Wake logging
+//
+//*********************************************************************************
+
+IOMemoryDescriptor *IOPMrootDomain::getPMTraceMemoryDescriptor(void)
+{
+ if (timeline)
+ return timeline->getPMTraceMemoryDescriptor();
+ else
+ return NULL;
+}
+
+// Forwards external reports of detailed events to IOPMTimeline
+IOReturn IOPMrootDomain::recordPMEvent(PMEventDetails *details)
+{
+ if (timeline && details) {
+
+ IOReturn rc;
+
+ // Record a detailed driver power change event, or...
+ if(details->eventClassifier == kIOPMEventClassDriverEvent) {
+ rc = timeline->recordDetailedPowerEvent( details );
+ }
+
+ // Record a system power management event
+ else if(details->eventClassifier == kIOPMEventClassSystemEvent) {
+ rc = timeline->recordSystemPowerEvent( details );
+ }
+ else {
+ return kIOReturnBadArgument;
+ }
+
+ // If we get to record this message, then we've reached the
+ // end of another successful Sleep --> Wake cycle
+ // At this point, we pat ourselves in the back and allow
+ // our Sleep --> Wake UUID to be published
+ if(details->eventType == kIOPMEventTypeWakeDone) {
+ timeline->setSleepCycleInProgressFlag(false);
+ }
+
+/*
+ // Check if its time to clear the timeline buffer
+ if(getProperty(kIOPMSleepWakeUUIDKey)
+ && timeline->isSleepCycleInProgress() == false
+ && timeline->getNumEventsLoggedThisPeriod() > 500) {
+
+ // Clear the old UUID
+ if(pmPowerStateQueue) {
+ pmPowerStateQueue->submitPowerEvent(kPowerEventPublishSleepWakeUUID, (void *)false );
+ }
+ }
+*/
+ return rc;
+ }
+ else
+ return kIOReturnNotReady;
+}
+
+IOReturn IOPMrootDomain::recordAndReleasePMEvent(PMEventDetails *details)
+{
+ IOReturn ret = kIOReturnBadArgument;
+
+ if (details)
+ {
+ ret = recordPMEvent(details);
+ details->release();
+ }
+
+ return ret;
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+IOPMDriverAssertionID IOPMrootDomain::createPMAssertion(
+ IOPMDriverAssertionType whichAssertionBits,
+ IOPMDriverAssertionLevel assertionLevel,
+ IOService *ownerService,
+ const char *ownerDescription)
+{
+ IOReturn ret;
+ IOPMDriverAssertionID newAssertion;
+
+ if (!pmAssertions)
+ return 0;
+
+ ret = pmAssertions->createAssertion(whichAssertionBits, assertionLevel, ownerService, ownerDescription, &newAssertion);
+
+ if (kIOReturnSuccess == ret)
+ return newAssertion;
+ else
+ return 0;
+}
+
+IOReturn IOPMrootDomain::releasePMAssertion(IOPMDriverAssertionID releaseAssertion)
+{
+ if (!pmAssertions)
+ return kIOReturnInternalError;
+
+ return pmAssertions->releaseAssertion(releaseAssertion);
+}
+
+IOReturn IOPMrootDomain::setPMAssertionLevel(
+ IOPMDriverAssertionID assertionID,
+ IOPMDriverAssertionLevel assertionLevel)
+{
+ return pmAssertions->setAssertionLevel(assertionID, assertionLevel);
+}
+
+IOPMDriverAssertionLevel IOPMrootDomain::getPMAssertionLevel(IOPMDriverAssertionType whichAssertion)
+{
+ IOPMDriverAssertionType sysLevels;
+
+ if (!pmAssertions || whichAssertion == 0)
+ return kIOPMDriverAssertionLevelOff;
+
+ sysLevels = pmAssertions->getActivatedAssertions();
+
+ // Check that every bit set in argument 'whichAssertion' is asserted
+ // in the aggregate bits.
+ if ((sysLevels & whichAssertion) == whichAssertion)
+ return kIOPMDriverAssertionLevelOn;
+ else
+ return kIOPMDriverAssertionLevelOff;
+}
+
+IOReturn IOPMrootDomain::setPMAssertionUserLevels(IOPMDriverAssertionType inLevels)
+{
+ if (!pmAssertions)
+ return kIOReturnNotFound;
+
+ return pmAssertions->setUserAssertionLevels(inLevels);
+}
+
+bool IOPMrootDomain::serializeProperties( OSSerialize * s ) const
+{
+ if (pmAssertions)
+ {
+ pmAssertions->publishProperties();
+ }
+ return( IOService::serializeProperties(s) );
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+// MARK: -
+// MARK: PMSettingHandle
+
+OSDefineMetaClassAndStructors( PMSettingHandle, OSObject )
+
+void PMSettingHandle::free( void )
+{
+ if (pmso)
+ {
+ pmso->clientHandleFreed();
+ pmso->release();
+ pmso = 0;
+ }
+
+ OSObject::free();
+}
+
+// MARK: -
+// MARK: PMSettingObject
+
+#undef super
+#define super OSObject
+OSDefineMetaClassAndFinalStructors( PMSettingObject, OSObject )
+
+/*
+ * Static constructor/initializer for PMSettingObject
+ */
+PMSettingObject *PMSettingObject::pmSettingObject(
+ IOPMrootDomain *parent_arg,
+ IOPMSettingControllerCallback handler_arg,
+ OSObject *target_arg,
+ uintptr_t refcon_arg,
+ uint32_t supportedPowerSources,
+ const OSSymbol * settings[],
+ OSObject **handle_obj)
+{
+ uint32_t settingCount = 0;
+ PMSettingObject *pmso = 0;
+ PMSettingHandle *pmsh = 0;
+
+ if ( !parent_arg || !handler_arg || !settings || !handle_obj )
+ return NULL;
+
+ // count OSSymbol entries in NULL terminated settings array
+ while (settings[settingCount]) {
+ settingCount++;
+ }
+ if (0 == settingCount)
+ return NULL;
+
+ pmso = new PMSettingObject;
+ if (!pmso || !pmso->init())
+ goto fail;
+
+ pmsh = new PMSettingHandle;
+ if (!pmsh || !pmsh->init())
+ goto fail;
+
+ queue_init(&pmso->calloutQueue);
+ pmso->parent = parent_arg;
+ pmso->func = handler_arg;
+ pmso->target = target_arg;
+ pmso->refcon = refcon_arg;
+ pmso->settingCount = settingCount;
+
+ pmso->retain(); // handle holds a retain on pmso
+ pmsh->pmso = pmso;
+ pmso->pmsh = pmsh;
+
+ pmso->publishedFeatureID = (uint32_t *)IOMalloc(sizeof(uint32_t)*settingCount);
+ if (pmso->publishedFeatureID) {
+ for (unsigned int i=0; i<settingCount; i++) {
+ // Since there is now at least one listener to this setting, publish
+ // PM root domain support for it.
+ parent_arg->publishFeature( settings[i]->getCStringNoCopy(),
+ supportedPowerSources, &pmso->publishedFeatureID[i] );
+ }
+ }
+
+ *handle_obj = pmsh;
+ return pmso;
+
+fail:
+ if (pmso) pmso->release();
+ if (pmsh) pmsh->release();
+ return NULL;
+}
+
+void PMSettingObject::free( void )
+{
+ if (publishedFeatureID) {
+ for (uint32_t i=0; i<settingCount; i++) {
+ if (publishedFeatureID[i]) {
+ parent->removePublishedFeature( publishedFeatureID[i] );
+ }
+ }
+
+ IOFree(publishedFeatureID, sizeof(uint32_t) * settingCount);
+ }
+
+ super::free();
+}
+
+void PMSettingObject::dispatchPMSetting( const OSSymbol * type, OSObject * object )
+{
+ (*func)(target, type, object, refcon);
+}
+
+void PMSettingObject::clientHandleFreed( void )
+{
+ parent->deregisterPMSettingObject(this);
+}
+
+// MARK: -
+// MARK: IOPMTimeline
+
+#undef super
+#define super OSObject
+
+//*********************************************************************************
+//*********************************************************************************
+//*********************************************************************************
+
+IOPMTimeline *IOPMTimeline::timeline(IOPMrootDomain *root_domain)
+{
+ IOPMTimeline *myself;
+
+ if (!root_domain)
+ return NULL;
+
+ myself = new IOPMTimeline;
+
+ if (myself) {
+ myself->owner = root_domain;
+ myself->init();
+ }
+
+ return myself;
+}
+
+bool IOPMTimeline::init(void)
+{
+ if (!super::init()) {
+ return false;
+ }
+
+ logLock = IOLockAlloc();
+
+ // Fresh timeline, no events logged yet
+ this->numEventsLoggedThisPeriod = 0;
+ this->sleepCycleInProgress = false;
+
+ //this->setEventsRecordingLevel(1); // TODO
+ this->setEventsTrackedCount(kIOPMDefaultSystemEventsTracked);
+
+ return true;
+}
+
+void IOPMTimeline::free(void)
+{
+ if (pmTraceMemoryDescriptor) {
+ pmTraceMemoryDescriptor->release();
+ pmTraceMemoryDescriptor = NULL;
+ }
+
+ IOLockFree(logLock);
+
+ super::free();
+}
+
+IOMemoryDescriptor *IOPMTimeline::getPMTraceMemoryDescriptor()
+{
+ return pmTraceMemoryDescriptor;
+}
+
+//*********************************************************************************
+//*********************************************************************************
+//*********************************************************************************
+
+bool IOPMTimeline::setProperties(OSDictionary *d)
+{
+ OSNumber *n = NULL;
+ OSBoolean *b = NULL;
+ bool changed = false;
+
+ /* Changes size of detailed events buffer */
+ n = (OSNumber *)d->getObject(kIOPMTimelineSystemNumberTrackedKey);
+ if (OSDynamicCast(OSNumber, n))
+ {
+ changed = true;
+ this->setEventsTrackedCount(n->unsigned32BitValue());
+ }
+
+
+ /* enables or disables system events */
+ b = (OSBoolean *)d->getObject(kIOPMTimelineEnabledKey);
+ if (b)
+ {
+ changed = true;
+ this->setEventsRecordingLevel((int)(kOSBooleanTrue == b));
+ }
+
+ return changed;
+}
+
+//*********************************************************************************
+//*********************************************************************************
+//*********************************************************************************
+
+OSDictionary *IOPMTimeline::copyInfoDictionary(void)
+{
+ OSDictionary *out = OSDictionary::withCapacity(3);
+ OSNumber *n = NULL;
+
+ if (!out || !hdr)
+ return NULL;
+
+ n = OSNumber::withNumber(hdr->sizeEntries, 32);
+ out->setObject(kIOPMTimelineSystemNumberTrackedKey, n);
+ n->release();
+
+ n = OSNumber::withNumber(hdr->sizeBytes, 32);
+ out->setObject(kIOPMTimelineSystemBufferSizeKey, n);
+ n->release();
+
+ // bool
+ out->setObject(kIOPMTimelineEnabledKey, eventsRecordingLevel ? kOSBooleanTrue : kOSBooleanFalse);
+
+ return out;
+}
+
+//*********************************************************************************
+//*********************************************************************************
+//*********************************************************************************
+
+/* IOPMTimeline::recordSystemPowerEvent()
+ *
+ * Expected "type" arguments are listed in IOPMPrivate.h under enum "SystemEventTypes"
+ * Type arguments include "system events", and "Intermediate events"
+ *
+ * - System Events have paired "start" and "stop" events.
+ * - A start event shall be followed by a stop event.
+ * - Any number of Intermediate Events may fall between the
+ * start and stop events.
+ * - Intermediate events are meaningless outside the bounds of a system event's
+ * start & stoup routines.
+ * - It's invalid to record a Start event without a following Stop event; e.g. two
+ * Start events without an intervenining Stop event is invalid.
+ *
+ * Buffer invariants
+ * - The first recorded system event shall be preceded by an entry with type == 0
+ * - IOPMTimeline may choose not to record intermediate events while there's not
+ * a system event in process.
+ */
+IOReturn IOPMTimeline::recordSystemPowerEvent( PMEventDetails *details )
+{
+ static bool wakeDonePending = true;
+ IOPMSystemEventRecord *record_to = NULL;
+ OSString *swUUIDKey = NULL;
+ uint32_t useIndex = 0;
+
+ if (!details)
+ return kIOReturnBadArgument;
+
+ if (!traceBuffer)
+ return kIOReturnNotReady;
+
+ if (details->eventType == kIOPMEventTypeWakeDone)
+ {
+ if(!wakeDonePending)
+ return kIOReturnBadArgument;
+ }
+
+ IOLockLock(logLock);
+
+ if (details->eventType == kIOPMEventTypeWake) {
+ wakeDonePending = true;
+ } else if (details->eventType == kIOPMEventTypeWakeDone) {
+ wakeDonePending = false;
+ }
+
+ systemState = details->eventType;
+
+ useIndex = _atomicIndexIncrement(&hdr->index, hdr->sizeEntries);
+
+ // The entry immediately after the latest entry (and thus
+ // immediately before the first entry) shall have a type 0.
+ if (useIndex + 1 >= hdr->sizeEntries) {
+ traceBuffer[useIndex + 1].eventType = 0;
+ } else {
+ traceBuffer[0].eventType = 0;
+ }
+
+ record_to = &traceBuffer[useIndex];
+ bzero(record_to, sizeof(IOPMSystemEventRecord));
+
+ /*****/
+ record_to->eventType = details->eventType;
+ record_to->eventReason = details->reason;
+ record_to->eventResult = details->result;
+ pmEventTimeStamp(&record_to->timestamp);
+
+ // If caller doesn't provide a UUID, we'll use the UUID that's posted
+ // on IOPMrootDomain under key kIOPMSleepWakeUUIDKey
+ if (!details->uuid) {
+ swUUIDKey = OSDynamicCast(OSString, owner->copyProperty(kIOPMSleepWakeUUIDKey));
+
+ if (swUUIDKey)
+ details->uuid = swUUIDKey->getCStringNoCopy();
+ }
+
+ if (details->uuid)
+ strncpy(record_to->uuid, details->uuid, kMaxPMStringLength);
+
+ if (swUUIDKey)
+ swUUIDKey->release();
+
+ numEventsLoggedThisPeriod++;
+ /*****/
+
+ IOLockUnlock(logLock);
+
+ return kIOReturnSuccess;
+
+}
+
+//*********************************************************************************
+//*********************************************************************************
+//*********************************************************************************
+
+IOReturn IOPMTimeline::recordDetailedPowerEvent( PMEventDetails *details )
+{
+ IOPMSystemEventRecord *record_to = NULL;
+ uint32_t useIndex;
+
+ if (!details->eventType || !details->ownerName)
+ return kIOReturnBadArgument;
+
+ IOLockLock(logLock);
+
+ useIndex = _atomicIndexIncrement(&hdr->index, hdr->sizeEntries);
+
+ record_to = (IOPMSystemEventRecord *)&traceBuffer[useIndex];
+ bzero(record_to, sizeof(IOPMSystemEventRecord));
+
+ /*****/
+ record_to->eventType = details->eventType;
+ if (details->ownerName && (strlen(details->ownerName) > 1)) {
+ strlcpy( record_to->ownerName,
+ details->ownerName,
+ sizeof(record_to->ownerName));
+ }
+
+ record_to->ownerDisambiguateID = details->ownerUnique;
+
+ if (details->interestName && (strlen(details->interestName) > 1)) {
+ strlcpy(record_to->interestName,
+ details->interestName,
+ sizeof(record_to->interestName));
+ }
+
+ record_to->oldState = details->oldState;
+ record_to->newState = details->newState;
+ record_to->eventResult = details->result;
+ record_to->elapsedTimeUS = details->elapsedTimeUS;
+ pmEventTimeStamp(&record_to->timestamp);
+
+ numEventsLoggedThisPeriod++;
+ /*****/
+
+ IOLockUnlock(logLock);
+ return kIOReturnSuccess;
+}
+
+uint32_t IOPMTimeline::getNumEventsLoggedThisPeriod() {
+ return this->numEventsLoggedThisPeriod;
+}
+
+void IOPMTimeline::setNumEventsLoggedThisPeriod(uint32_t newCount) {
+ this->numEventsLoggedThisPeriod = newCount;
+}
+
+bool IOPMTimeline::isSleepCycleInProgress() {
+ return this->sleepCycleInProgress;
+}
+
+void IOPMTimeline::setSleepCycleInProgressFlag(bool flag) {
+ this->sleepCycleInProgress = flag;
+}
+//*********************************************************************************
+//*********************************************************************************
+//*********************************************************************************
+
+void IOPMTimeline::setEventsTrackedCount(uint32_t newTracked)
+{
+ size_t make_buf_size = 0;
+
+ make_buf_size = sizeof(IOPMTraceBufferHeader) + (newTracked * sizeof(IOPMSystemEventRecord));
+
+ IOLockLock(logLock);
+
+ if (pmTraceMemoryDescriptor) {
+ pmTraceMemoryDescriptor->release();
+ pmTraceMemoryDescriptor = NULL;
+ }
+
+ hdr = NULL;
+ traceBuffer = NULL;
+
+ if (0 == newTracked)
+ {
+ IOLog("IOPMrootDomain -> erased buffer.\n");
+ goto exit;
+ }
+
+ pmTraceMemoryDescriptor = IOBufferMemoryDescriptor::withOptions(
+ kIOMemoryKernelUserShared | kIODirectionIn, make_buf_size);
+
+ if (!pmTraceMemoryDescriptor)
+ {
+ IOLog("IOPMRootDomain -> IOBufferMemoryDescriptor(%d) returns NULL\n", (int)make_buf_size);
+ goto exit;
+ }
+
+ pmTraceMemoryDescriptor->prepare(kIODirectionIn);
+
+ // Header occupies the first sizeof(IOPMTraceBufferHeader) bytes
+ hdr = (IOPMTraceBufferHeader *)pmTraceMemoryDescriptor->getBytesNoCopy();
+
+ // Recorded events occupy the remaining bulk of the buffer
+ traceBuffer = (IOPMSystemEventRecord *)((uint8_t *)hdr + sizeof(IOPMTraceBufferHeader));
+
+ bzero(hdr, make_buf_size);
+
+ hdr->sizeBytes = make_buf_size;
+ hdr->sizeEntries = newTracked;
+
+ IOLog("IOPMRootDomain -> IOBufferMemoryDescriptor(%d) returns bufferMB with address 0x%08x\n", (int)make_buf_size, (unsigned int)(uintptr_t)traceBuffer);
+
+exit:
+ IOLockUnlock(logLock);
+}
+
+//*********************************************************************************
+//*********************************************************************************
+//*********************************************************************************
+
+void IOPMTimeline::setEventsRecordingLevel(uint32_t eventsTrackedBits)
+{
+
+ // TODO
+
+ return;
+
+}
+
+/* static helper to IOPMTimeline
+ */
+uint32_t IOPMTimeline::_atomicIndexIncrement(uint32_t *index, uint32_t limit)
{
- return super::tellClientsWithResponse(kIOMessageCanSystemSleep);
+ uint32_t was_index;
+ uint32_t inc_index;
+
+ if(!index)
+ return NULL;
+
+ do {
+ was_index = *index;
+ inc_index = (was_index+1)%limit;
+ } while (!OSCompareAndSwap(was_index, inc_index, index));
+
+ return inc_index;
}
+// MARK: -
+// MARK: PMAssertionsTracker
//*********************************************************************************
-// tellNoChangeDown
-//
-// Notify registered applications and kernel clients that we are not
-// dropping power.
-//
-// We override the superclass implementation so we can send a different message
-// type to the client or application being notified.
-//
-// This must be a vetoed idle sleep, since no other power change can be vetoed.
//*********************************************************************************
+//*********************************************************************************
+// class PMAssertionsTracker Implementation
+
+#define kAssertUniqueIDStart 500
-void IOPMrootDomain::tellNoChangeDown ( unsigned long )
+PMAssertionsTracker *PMAssertionsTracker::pmAssertionsTracker( IOPMrootDomain *rootDomain )
{
- return tellClients(kIOMessageSystemWillNotSleep);
+ PMAssertionsTracker *myself;
+
+ myself = new PMAssertionsTracker;
+
+ if (myself) {
+ myself->init();
+ myself->owner = rootDomain;
+ myself->issuingUniqueID = kAssertUniqueIDStart;
+ myself->assertionsArray = OSArray::withCapacity(5);
+ myself->assertionsKernel = 0;
+ myself->assertionsUser = 0;
+ myself->assertionsCombined = 0;
+ myself->assertionsArrayLock = IOLockAlloc();
+ myself->tabulateProducerCount = myself->tabulateConsumerCount = 0;
+
+ if (!myself->assertionsArray || !myself->assertionsArrayLock)
+ myself = NULL;
+ }
+
+ return myself;
}
+/* tabulate
+ * - Update assertionsKernel to reflect the state of all
+ * assertions in the kernel.
+ * - Update assertionsCombined to reflect both kernel & user space.
+ */
+void PMAssertionsTracker::tabulate(void)
+{
+ int i;
+ int count;
+ PMAssertStruct *_a = NULL;
+ OSData *_d = NULL;
-//*********************************************************************************
-// tellChangeUp
-//
-// Notify registered applications and kernel clients that we are raising power.
-//
-// We override the superclass implementation so we can send a different message
-// type to the client or application being notified.
-//*********************************************************************************
+ IOPMDriverAssertionType oldKernel = assertionsKernel;
+ IOPMDriverAssertionType oldCombined = assertionsCombined;
-void IOPMrootDomain::tellChangeUp ( unsigned long stateNum)
-{
- if ( stateNum == ON_STATE )
+ ASSERT_GATED();
+
+ assertionsKernel = 0;
+ assertionsCombined = 0;
+
+ if (!assertionsArray)
+ return;
+
+ if ((count = assertionsArray->getCount()))
{
- IOHibernateSystemPostWake();
- return tellClients(kIOMessageSystemHasPoweredOn);
+ for (i=0; i<count; i++)
+ {
+ _d = OSDynamicCast(OSData, assertionsArray->getObject(i));
+ if (_d)
+ {
+ _a = (PMAssertStruct *)_d->getBytesNoCopy();
+ if (_a && (kIOPMDriverAssertionLevelOn == _a->level))
+ assertionsKernel |= _a->assertionBits;
+ }
+ }
}
-}
-//*********************************************************************************
-// reportUserInput
-//
-//*********************************************************************************
+ tabulateProducerCount++;
+ assertionsCombined = assertionsKernel | assertionsUser;
+
+ if ((assertionsKernel != oldKernel) ||
+ (assertionsCombined != oldCombined))
+ {
+ owner->messageClients(kIOPMMessageDriverAssertionsChanged);
+
+ if (((assertionsCombined & kIOPMDriverAssertionPreventDisplaySleepBit) != 0)
+ && ((oldCombined & kIOPMDriverAssertionPreventDisplaySleepBit) == 0))
+ {
+ /* We react to a new PreventDisplaySleep assertion by waking the display
+ * with an activityTickle
+ */
+ owner->evaluatePolicy(kStimulusDarkWakeActivityTickle);
+ } else {
+ owner->evaluatePolicy(kStimulusDarkWakeEvaluate);
+ }
+ }
+}
-void IOPMrootDomain::reportUserInput ( void )
+void PMAssertionsTracker::publishProperties( void )
{
- OSIterator * iter;
+ OSArray *assertionsSummary = NULL;
- if(!wrangler)
+ if (tabulateConsumerCount != tabulateProducerCount)
{
- iter = getMatchingServices(serviceMatching("IODisplayWrangler"));
- if(iter)
+ IOLockLock(assertionsArrayLock);
+
+ tabulateConsumerCount = tabulateProducerCount;
+
+ /* Publish the IOPMrootDomain property "DriverPMAssertionsDetailed"
+ */
+ assertionsSummary = copyAssertionsArray();
+ if (assertionsSummary)
{
- wrangler = (IOService *) iter->getNextObject();
- iter->release();
+ owner->setProperty(kIOPMAssertionsDriverDetailedKey, assertionsSummary);
+ assertionsSummary->release();
+ }
+ else
+ {
+ owner->removeProperty(kIOPMAssertionsDriverDetailedKey);
}
- }
- if(wrangler)
- wrangler->activityTickle(0,0);
-}
+ /* Publish the IOPMrootDomain property "DriverPMAssertions"
+ */
+ owner->setProperty(kIOPMAssertionsDriverKey, assertionsKernel, 64);
-//*********************************************************************************
-// setQuickSpinDownTimeout
-//
-//*********************************************************************************
+ IOLockUnlock(assertionsArrayLock);
+ }
+}
-void IOPMrootDomain::setQuickSpinDownTimeout ( void )
+PMAssertionsTracker::PMAssertStruct *PMAssertionsTracker::detailsForID(IOPMDriverAssertionID _id, int *index)
{
- super::setAggressiveness((unsigned long)kPMMinutesToSpinDown,(unsigned long)1);
-}
+ PMAssertStruct *_a = NULL;
+ OSData *_d = NULL;
+ int found = -1;
+ int count = 0;
+ int i = 0;
+
+ if (assertionsArray
+ && (count = assertionsArray->getCount()))
+ {
+ for (i=0; i<count; i++)
+ {
+ _d = OSDynamicCast(OSData, assertionsArray->getObject(i));
+ if (_d)
+ {
+ _a = (PMAssertStruct *)_d->getBytesNoCopy();
+ if (_a && (_id == _a->id)) {
+ found = i;
+ break;
+ }
+ }
+ }
+ }
-//*********************************************************************************
-// restoreUserSpinDownTimeout
-//
-//*********************************************************************************
+ if (-1 == found) {
+ return NULL;
+ } else {
+ if (index)
+ *index = found;
+ return _a;
+ }
+}
-void IOPMrootDomain::restoreUserSpinDownTimeout ( void )
+/* PMAssertionsTracker::handleCreateAssertion
+ * Perform assertion work on the PM workloop. Do not call directly.
+ */
+IOReturn PMAssertionsTracker::handleCreateAssertion(OSData *newAssertion)
{
- super::setAggressiveness((unsigned long)kPMMinutesToSpinDown,(unsigned long)user_spindown);
-}
+ ASSERT_GATED();
-//*********************************************************************************
-// changePowerStateTo & changePowerStateToPriv
-//
-// Override of these methods for logging purposes.
-//*********************************************************************************
+ if (newAssertion)
+ {
+ IOLockLock(assertionsArrayLock);
+ assertionsArray->setObject(newAssertion);
+ IOLockUnlock(assertionsArrayLock);
+ newAssertion->release();
-IOReturn IOPMrootDomain::changePowerStateTo ( unsigned long ordinal )
-{
- return super::changePowerStateTo(ordinal);
+ tabulate();
+ }
+ return kIOReturnSuccess;
}
-IOReturn IOPMrootDomain::changePowerStateToPriv ( unsigned long ordinal )
+/* PMAssertionsTracker::createAssertion
+ * createAssertion allocates memory for a new PM assertion, and affects system behavior, if
+ * appropiate.
+ */
+IOReturn PMAssertionsTracker::createAssertion(
+ IOPMDriverAssertionType which,
+ IOPMDriverAssertionLevel level,
+ IOService *serviceID,
+ const char *whoItIs,
+ IOPMDriverAssertionID *outID)
{
- return super::changePowerStateToPriv(ordinal);
+ OSData *dataStore = NULL;
+ PMAssertStruct track;
+
+ // Warning: trillions and trillions of created assertions may overflow the unique ID.
+ track.id = OSIncrementAtomic64((SInt64*) &issuingUniqueID);
+ track.level = level;
+ track.assertionBits = which;
+ track.ownerString = whoItIs ? OSSymbol::withCString(whoItIs) : 0;
+ track.ownerService = serviceID;
+ track.modifiedTime = 0;
+ pmEventTimeStamp(&track.createdTime);
+
+ dataStore = OSData::withBytes(&track, sizeof(PMAssertStruct));
+ if (!dataStore)
+ {
+ if (track.ownerString)
+ track.ownerString->release();
+ return kIOReturnNoMemory;
+ }
+
+ *outID = track.id;
+
+ if (owner && owner->pmPowerStateQueue) {
+ owner->pmPowerStateQueue->submitPowerEvent(kPowerEventAssertionCreate, (void *)dataStore);
+ }
+
+ return kIOReturnSuccess;
}
+/* PMAssertionsTracker::handleReleaseAssertion
+ * Runs in PM workloop. Do not call directly.
+ */
+IOReturn PMAssertionsTracker::handleReleaseAssertion(
+ IOPMDriverAssertionID _id)
+{
+ ASSERT_GATED();
-//*********************************************************************************
-// sysPowerDownHandler
-//
-// Receives a notification when the RootDomain changes state.
-//
-// Allows us to take action on system sleep, power down, and restart after
-// applications have received their power change notifications and replied,
-// but before drivers have powered down. We perform a vfs sync on power down.
-//*********************************************************************************
+ int index;
+ PMAssertStruct *assertStruct = detailsForID(_id, &index);
+
+ if (!assertStruct)
+ return kIOReturnNotFound;
-IOReturn IOPMrootDomain::sysPowerDownHandler( void * target, void * refCon,
- UInt32 messageType, IOService * service,
- void * messageArgument, vm_size_t argSize )
-{
- IOReturn ret;
- IOPowerStateChangeNotification *params = (IOPowerStateChangeNotification *) messageArgument;
- IOPMrootDomain *rootDomain = OSDynamicCast(IOPMrootDomain, service);
+ IOLockLock(assertionsArrayLock);
+ if (assertStruct->ownerString)
+ assertStruct->ownerString->release();
- if(!rootDomain)
- return kIOReturnUnsupported;
+ assertionsArray->removeObject(index);
+ IOLockUnlock(assertionsArrayLock);
+
+ tabulate();
+ return kIOReturnSuccess;
+}
- switch (messageType) {
- case kIOMessageSystemWillSleep:
- rootDomain->powerOverrideOnPriv(); // start ignoring children's requests
- // (fall through to other cases)
+/* PMAssertionsTracker::releaseAssertion
+ * Releases an assertion and affects system behavior if appropiate.
+ * Actual work happens on PM workloop.
+ */
+IOReturn PMAssertionsTracker::releaseAssertion(
+ IOPMDriverAssertionID _id)
+{
+ if (owner && owner->pmPowerStateQueue) {
+ owner->pmPowerStateQueue->submitPowerEvent(kPowerEventAssertionRelease, 0, _id);
+ }
+ return kIOReturnSuccess;
+}
- // Interested applications have been notified of an impending power
- // change and have acked (when applicable).
- // This is our chance to save whatever state we can before powering
- // down.
- // We call sync_internal defined in xnu/bsd/vfs/vfs_syscalls.c,
- // via callout
+/* PMAssertionsTracker::handleSetAssertionLevel
+ * Runs in PM workloop. Do not call directly.
+ */
+IOReturn PMAssertionsTracker::handleSetAssertionLevel(
+ IOPMDriverAssertionID _id,
+ IOPMDriverAssertionLevel _level)
+{
+ PMAssertStruct *assertStruct = detailsForID(_id, NULL);
- // We will ack within 20 seconds
- params->returnValue = 20 * 1000 * 1000;
- if (gIOHibernateState)
- params->returnValue += gIOHibernateFreeTime * 1000; //add in time we could spend freeing pages
+ ASSERT_GATED();
- if ( ! OSCompareAndSwap( 0, 1, &gSleepOrShutdownPending ) )
- {
- // Purposely delay the ack and hope that shutdown occurs quickly.
- // Another option is not to schedule the thread and wait for
- // ack timeout...
- AbsoluteTime deadline;
- clock_interval_to_deadline( 30, kSecondScale, &deadline );
- thread_call_enter1_delayed( rootDomain->diskSyncCalloutEntry,
- (thread_call_param_t)params->powerRef,
- deadline );
- }
- else
- thread_call_enter1(rootDomain->diskSyncCalloutEntry, (thread_call_param_t)params->powerRef);
- ret = kIOReturnSuccess;
- break;
+ if (!assertStruct) {
+ return kIOReturnNotFound;
+ }
- case kIOMessageSystemWillPowerOff:
- case kIOMessageSystemWillRestart:
- ret = kIOReturnUnsupported;
- break;
+ IOLockLock(assertionsArrayLock);
+ pmEventTimeStamp(&assertStruct->modifiedTime);
+ assertStruct->level = _level;
+ IOLockUnlock(assertionsArrayLock);
- default:
- ret = kIOReturnUnsupported;
- break;
+ tabulate();
+ return kIOReturnSuccess;
+}
+
+/* PMAssertionsTracker::setAssertionLevel
+ */
+IOReturn PMAssertionsTracker::setAssertionLevel(
+ IOPMDriverAssertionID _id,
+ IOPMDriverAssertionLevel _level)
+{
+ if (owner && owner->pmPowerStateQueue) {
+ owner->pmPowerStateQueue->submitPowerEvent(kPowerEventAssertionSetLevel,
+ (void *)_level, _id);
}
- return ret;
+
+ return kIOReturnSuccess;
}
-
-//*********************************************************************************
-// displayWranglerNotification
-//
-// Receives a notification when the IODisplayWrangler changes state.
-//
-// Allows us to take action on display dim/undim.
-//
-// When the display goes dim we:
-// - Start the idle sleep timer
-// - set the quick spin down timeout
-//
-// On wake from display dim:
-// - Cancel the idle sleep timer
-// - restore the user's chosen spindown timer from the "quick" spin down value
-//*********************************************************************************
-IOReturn IOPMrootDomain::displayWranglerNotification( void * target, void * refCon,
- UInt32 messageType, IOService * service,
- void * messageArgument, vm_size_t argSize )
+IOReturn PMAssertionsTracker::handleSetUserAssertionLevels(void * arg0)
{
- IOPMrootDomain * rootDomain = OSDynamicCast(IOPMrootDomain, (IOService *)target);
- AbsoluteTime deadline;
- static bool deviceAlreadyPoweredOff = false;
+ IOPMDriverAssertionType new_user_levels = *(IOPMDriverAssertionType *) arg0;
- if(!rootDomain)
- return kIOReturnUnsupported;
+ ASSERT_GATED();
- switch (messageType) {
- case kIOMessageDeviceWillPowerOff:
- // The IODisplayWrangler has powered off either because of idle display sleep
- // or force system sleep.
-
- // The display wrangler will send the DeviceWillPowerOff message 4 times until
- // it gets into its lowest state. We only want to act on the first of those 4.
- if( deviceAlreadyPoweredOff ) return kIOReturnUnsupported;
-
- deviceAlreadyPoweredOff = true;
-
- if( rootDomain->extraSleepDelay )
- {
- // start the extra sleep timer
- clock_interval_to_deadline(rootDomain->extraSleepDelay*60, kSecondScale, &deadline );
- thread_call_enter_delayed(rootDomain->extraSleepTimer, deadline);
- rootDomain->idleSleepPending = true;
- } else {
- // accelerate disk spin down if spin down timer is non-zero (zero = never spin down)
- // and if system sleep is non-Never
- if( (0 != rootDomain->user_spindown) && (0 != rootDomain->sleepSlider) )
- rootDomain->setQuickSpinDownTimeout();
- }
+ if (new_user_levels != assertionsUser)
+ {
+ assertionsUser = new_user_levels;
+ DLOG("assertionsUser 0x%llx\n", assertionsUser);
+ }
- break;
+ tabulate();
+ return kIOReturnSuccess;
+}
- case kIOMessageDeviceHasPoweredOn:
+IOReturn PMAssertionsTracker::setUserAssertionLevels(
+ IOPMDriverAssertionType new_user_levels)
+{
+ if (gIOPMWorkLoop) {
+ gIOPMWorkLoop->runAction(
+ OSMemberFunctionCast(
+ IOWorkLoop::Action,
+ this,
+ &PMAssertionsTracker::handleSetUserAssertionLevels),
+ this,
+ (void *) &new_user_levels, 0, 0, 0);
+ }
- // The display has powered on either because of UI activity or wake from sleep/doze
- deviceAlreadyPoweredOff = false;
- rootDomain->adjustPowerState();
-
+ return kIOReturnSuccess;
+}
- // cancel any pending idle sleep
- if(rootDomain->idleSleepPending)
- {
- thread_call_cancel(rootDomain->extraSleepTimer);
- rootDomain->idleSleepPending = false;
- }
- // Change the spindown value back to the user's selection from our accelerated setting
- if(0 != rootDomain->user_spindown)
- rootDomain->restoreUserSpinDownTimeout();
+OSArray *PMAssertionsTracker::copyAssertionsArray(void)
+{
+ int count;
+ int i;
+ OSArray *outArray = NULL;
- // Put on the policy maker's on clamp.
+ if (!assertionsArray ||
+ (0 == (count = assertionsArray->getCount())) ||
+ (NULL == (outArray = OSArray::withCapacity(count))))
+ {
+ goto exit;
+ }
- break;
+ for (i=0; i<count; i++)
+ {
+ PMAssertStruct *_a = NULL;
+ OSData *_d = NULL;
+ OSDictionary *details = NULL;
- default:
- break;
- }
- return kIOReturnUnsupported;
- }
+ _d = OSDynamicCast(OSData, assertionsArray->getObject(i));
+ if (_d && (_a = (PMAssertStruct *)_d->getBytesNoCopy()))
+ {
+ OSNumber *_n = NULL;
-//*********************************************************************************
-// displayWranglerPublished
-//
-// Receives a notification when the IODisplayWrangler is published.
-// When it's published we install a power state change handler.
-//
-//*********************************************************************************
+ details = OSDictionary::withCapacity(7);
+ if (!details)
+ continue;
-bool IOPMrootDomain::displayWranglerPublished( void * target, void * refCon,
- IOService * newService)
-{
- IOPMrootDomain * rootDomain = OSDynamicCast(IOPMrootDomain, (IOService *)target);
+ outArray->setObject(details);
+ details->release();
+
+ _n = OSNumber::withNumber(_a->id, 64);
+ if (_n) {
+ details->setObject(kIOPMDriverAssertionIDKey, _n);
+ _n->release();
+ }
+ _n = OSNumber::withNumber(_a->createdTime, 64);
+ if (_n) {
+ details->setObject(kIOPMDriverAssertionCreatedTimeKey, _n);
+ _n->release();
+ }
+ _n = OSNumber::withNumber(_a->modifiedTime, 64);
+ if (_n) {
+ details->setObject(kIOPMDriverAssertionModifiedTimeKey, _n);
+ _n->release();
+ }
+ _n = OSNumber::withNumber((uintptr_t)_a->ownerService, 64);
+ if (_n) {
+ details->setObject(kIOPMDriverAssertionOwnerServiceKey, _n);
+ _n->release();
+ }
+ _n = OSNumber::withNumber(_a->level, 64);
+ if (_n) {
+ details->setObject(kIOPMDriverAssertionLevelKey, _n);
+ _n->release();
+ }
+ _n = OSNumber::withNumber(_a->assertionBits, 64);
+ if (_n) {
+ details->setObject(kIOPMDriverAssertionAssertedKey, _n);
+ _n->release();
+ }
+
+ if (_a->ownerString) {
+ details->setObject(kIOPMDriverAssertionOwnerStringKey, _a->ownerString);
+ }
+ }
+ }
- if(!rootDomain)
- return false;
+exit:
+ return outArray;
+}
- rootDomain->wrangler = newService;
-
- // we found the display wrangler, now install a handler
- if( !rootDomain->wrangler->registerInterest( gIOGeneralInterest, &displayWranglerNotification, target, 0) ) {
- IOLog("IOPMrootDomain::displayWranglerPublished registerInterest failed\n");
- return false;
+IOPMDriverAssertionType PMAssertionsTracker::getActivatedAssertions(void)
+{
+ return assertionsCombined;
+}
+
+IOPMDriverAssertionLevel PMAssertionsTracker::getAssertionLevel(
+ IOPMDriverAssertionType type)
+{
+ if (type && ((type & assertionsKernel) == assertionsKernel))
+ {
+ return kIOPMDriverAssertionLevelOn;
+ } else {
+ return kIOPMDriverAssertionLevelOff;
}
-
- return true;
}
//*********************************************************************************
-// batteryLocationPublished
-//
-// Notification on AppleSMU publishing location of battery data
-//
+//*********************************************************************************
//*********************************************************************************
-bool IOPMrootDomain::batteryLocationPublished( void * target, void * root_domain,
- IOService * resourceService )
+
+static void pmEventTimeStamp(uint64_t *recordTS)
{
- IORegistryEntry *battery_location;
+ clock_sec_t tsec;
+ clock_usec_t tusec;
- battery_location = (IORegistryEntry *) resourceService->getProperty("battery");
- if (!battery_location || !OSDynamicCast(IORegistryEntry, battery_location))
- return (true);
-
- ((IOPMrootDomain *)root_domain)->setProperty("BatteryEntry", battery_location);
-
- // rdar://2936060
- // All laptops have dimmable LCD displays
- // All laptops have batteries
- // So if this machine has a battery, publish the fact that the backlight
- // supports dimming.
- ((IOPMrootDomain *)root_domain)->publishFeature("DisplayDims");
+ if (!recordTS)
+ return;
- ((IOPMrootDomain *)root_domain)->announcePowerSourceChange();
- return (true);
-}
+ // We assume tsec fits into 32 bits; 32 bits holds enough
+ // seconds for 136 years since the epoch in 1970.
+ clock_get_calendar_microtime(&tsec, &tusec);
+ // Pack the sec & microsec calendar time into a uint64_t, for fun.
+ *recordTS = 0;
+ *recordTS |= (uint32_t)tusec;
+ *recordTS |= ((uint64_t)tsec << 32);
-//*********************************************************************************
-// adjustPowerState
-//
-// Some condition that affects our wake/sleep/doze decision has changed.
-//
-// If the sleep slider is in the off position, we cannot sleep or doze.
-// If the enclosure is open, we cannot sleep or doze.
-// If the system is still booting, we cannot sleep or doze.
-//
-// In those circumstances, we prevent sleep and doze by holding power on with
-// changePowerStateToPriv(ON).
-//
-// If the above conditions do not exist, and also the sleep timer has expired, we
-// allow sleep or doze to occur with either changePowerStateToPriv(SLEEP) or
-// changePowerStateToPriv(DOZE) depending on whether or not we already know the
-// platform cannot sleep.
-//
-// In this case, sleep or doze will either occur immediately or at the next time
-// that no children are holding the system out of idle sleep via the
-// kIOPMPreventIdleSleep flag in their power state arrays.
-//*********************************************************************************
-
-void IOPMrootDomain::adjustPowerState( void )
-{
- if ( (sleepSlider == 0) ||
- ! allowSleep ||
- systemBooting ) {
- changePowerStateToPriv(ON_STATE);
- } else {
- if ( sleepASAP )
- {
- sleepASAP = false;
- if ( sleepIsSupported )
- {
- changePowerStateToPriv(SLEEP_STATE);
- } else {
- changePowerStateToPriv(DOZE_STATE);
- }
- }
- }
+ return;
}
+// MARK: -
+// MARK: IORootParent
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-#undef super
-#define super IOService
+OSDefineMetaClassAndFinalStructors(IORootParent, IOService)
-OSDefineMetaClassAndStructors(IORootParent, IOService)
+// The reason that root domain needs a root parent is to facilitate demand
+// sleep, since a power change from the root parent cannot be vetoed.
+//
+// The above statement is no longer true since root domain now performs
+// demand sleep using overrides. But root parent remains to avoid changing
+// the power tree stacking. Root parent is parked at the max power state.
-// This array exactly parallels the state array for the root domain.
-// Power state changes initiated by a device can be vetoed by a client of the device, and
-// power state changes initiated by the parent of a device cannot be vetoed by a client of the device,
-// so when the root domain wants a power state change that cannot be vetoed (e.g. demand sleep), it asks
-// its parent to make the change. That is the reason for this complexity.
-static IOPMPowerState patriarchPowerStates[number_of_power_states] = {
- {1,0,0,0,0,0,0,0,0,0,0,0}, // off
- {1,0,RESTART_POWER,0,0,0,0,0,0,0,0,0}, // reset
- {1,0,SLEEP_POWER,0,0,0,0,0,0,0,0,0}, // sleep
- {1,0,DOZE_POWER,0,0,0,0,0,0,0,0,0}, // doze
- {1,0,ON_POWER,0,0,0,0,0,0,0,0,0} // running
+static IOPMPowerState patriarchPowerStates[2] =
+{
+ {1,0,ON_POWER,0,0,0,0,0,0,0,0,0},
+ {1,0,ON_POWER,0,0,0,0,0,0,0,0,0},
};
-bool IORootParent::start ( IOService * nub )
+void IORootParent::initialize( void )
{
- mostRecentChange = ON_STATE;
- super::start(nub);
+}
+
+bool IORootParent::start( IOService * nub )
+{
+ IOService::start(nub);
+ attachToParent( getRegistryRoot(), gIOPowerPlane );
PMinit();
- registerPowerDriver(this,patriarchPowerStates,number_of_power_states);
- powerOverrideOnPriv();
+ registerPowerDriver(this, patriarchPowerStates, 2);
+ makeUsable();
return true;
}
-
-void IORootParent::shutDownSystem ( void )
+void IORootParent::shutDownSystem( void )
{
- mostRecentChange = OFF_STATE;
- changePowerStateToPriv(OFF_STATE);
}
-
-void IORootParent::restartSystem ( void )
+void IORootParent::restartSystem( void )
{
- mostRecentChange = RESTART_STATE;
- changePowerStateToPriv(RESTART_STATE);
}
-
-void IORootParent::sleepSystem ( void )
+void IORootParent::sleepSystem( void )
{
- mostRecentChange = SLEEP_STATE;
- changePowerStateToPriv(SLEEP_STATE);
}
-
-void IORootParent::dozeSystem ( void )
+void IORootParent::dozeSystem( void )
{
- mostRecentChange = DOZE_STATE;
- changePowerStateToPriv(DOZE_STATE);
}
-// Called in demand sleep when sleep discovered to be impossible after actually attaining that state.
-// This brings the parent to doze, which allows the root to step up from sleep to doze.
-
-// In idle sleep, do nothing because the parent is still on and the root can freely change state.
-
-void IORootParent::sleepToDoze ( void )
+void IORootParent::sleepToDoze( void )
{
- if ( mostRecentChange == SLEEP_STATE ) {
- changePowerStateToPriv(DOZE_STATE);
- }
}
+void IORootParent::wakeSystem( void )
+{
+}
-void IORootParent::wakeSystem ( void )
+OSObject * IORootParent::copyProperty( const char * aKey) const
{
- mostRecentChange = ON_STATE;
- changePowerStateToPriv(ON_STATE);
+ return (IOService::copyProperty(aKey));
}
projects / apple / xnu.git / blobdiff