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--- xnu/xnu-792.10.96/iokit/Kernel/IOPMrootDomain.cpp
+++ xnu/xnu-517/iokit/Kernel/IOPMrootDomain.cpp
@@ -1,21 +1,24 @@
-/*
- * Copyright (c) 1998-2005 Apple Computer, Inc. All rights reserved.
+ /*
+ * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
*
* @APPLE_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.
+ * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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. 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@
*/
@@ -27,37 +30,29 @@
#include <IOKit/IOTimeStamp.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>
-#include <IOKit/IOHibernatePrivate.h>
-
-#ifdef __ppc__
-#include <ppc/pms.h>
-#endif
-
-extern "C" {
-IOReturn OSMetaClassSystemSleepOrWake( UInt32 );
-}
+
+extern "C" void kprintf(const char *, ...);
extern const IORegistryPlane * gIOPowerPlane;
+
+// debug trace function
+static inline void
+ioSPMTrace(unsigned int csc,
+ unsigned int a = 0, unsigned int b = 0,
+ unsigned int c = 0, unsigned int d = 0)
+{
+ if (gIOKitDebug & kIOLogTracePower)
+ IOTimeStampConstant(IODBG_POWER(csc), a, b, c, d);
+}
IOReturn broadcast_aggressiveness ( OSObject *, void *, void *, void *, void * );
static void sleepTimerExpired(thread_call_param_t);
static void wakeupClamshellTimerExpired ( thread_call_param_t us);
-// "IOPMSetSleepSupported" callPlatformFunction name
-static const OSSymbol *sleepSupportedPEFunction = NULL;
-
-#define kIOSleepSupportedKey "IOSleepSupported"
-
-#define kRD_AllPowerSources (kIOPMSupportedOnAC \
- | kIOPMSupportedOnBatt \
- | kIOPMSupportedOnUPS)
#define number_of_power_states 5
#define OFF_STATE 0
@@ -71,63 +66,29 @@
#define SLEEP_POWER kIOPMAuxPowerOn
#define DOZE_POWER kIOPMDoze
-#define kLocalEvalClamshellCommand (1 << 15)
-
static IOPMPowerState ourPowerStates[number_of_power_states] = {
- // state 0, off
- {1,0, 0, 0,0,0,0,0,0,0,0,0},
- // state 1, restart
- {1,kIOPMRestartCapability, kIOPMRestart, RESTART_POWER,0,0,0,0,0,0,0,0},
- // state 2, sleep
- {1,kIOPMSleepCapability, kIOPMSleep, SLEEP_POWER,0,0,0,0,0,0,0,0},
- // state 3, doze
- {1,kIOPMDoze, kIOPMDoze, DOZE_POWER,0,0,0,0,0,0,0,0},
- // state 4, on
- {1,kIOPMPowerOn, kIOPMPowerOn, ON_POWER,0,0,0,0,0,0,0,0},
+ {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
};
static IOPMrootDomain * gRootDomain;
static UInt32 gSleepOrShutdownPending = 0;
-class PMSettingObject : public OSObject
-{
- OSDeclareDefaultStructors(PMSettingObject)
-private:
- IOPMrootDomain *parent;
- IOPMSettingControllerCallback func;
- OSObject *target;
- uintptr_t refcon;
- uint32_t *publishedFeatureID;
- int releaseAtCount;
-public:
- static PMSettingObject *pmSettingObject(
- IOPMrootDomain *parent_arg,
- IOPMSettingControllerCallback handler_arg,
- OSObject *target_arg,
- uintptr_t refcon_arg,
- uint32_t supportedPowerSources,
- const OSSymbol *settings[]);
-
- void setPMSetting(const OSSymbol *type, OSObject *obj);
-
- void taggedRelease(const void *tag, const int when) const;
- void free(void);
-};
-
-
-
#define super IOService
OSDefineMetaClassAndStructors(IOPMrootDomain,IOService)
extern "C"
{
- IONotifier * registerSleepWakeInterest(IOServiceInterestHandler handler, void * self, void * ref)
+ IONotifier * registerSleepWakeInterest(IOServiceInterestHandler handler, void * self, void * ref = 0)
{
return gRootDomain->registerInterest( gIOGeneralInterest, handler, self, ref );
}
- IONotifier * registerPrioritySleepWakeInterest(IOServiceInterestHandler handler, void * self, void * ref)
+ IONotifier * registerPrioritySleepWakeInterest(IOServiceInterestHandler handler, void * self, void * ref = 0)
{
return gRootDomain->registerInterest( gIOPriorityPowerStateInterest, handler, self, ref );
}
@@ -154,7 +115,6 @@
void IOSystemShutdownNotification ( void )
{
- IOCatalogue::disableExternalLinker();
for ( int i = 0; i < 100; i++ )
{
if ( OSCompareAndSwap( 0, 1, &gSleepOrShutdownPending ) ) break;
@@ -206,6 +166,7 @@
to be tickled)).
*/
+
// **********************************************************************************
IOPMrootDomain * IOPMrootDomain::construct( void )
@@ -226,7 +187,6 @@
IOService *rootDomain = (IOService *) p0;
unsigned long pmRef = (unsigned long) p1;
- IOHibernateSystemSleep();
sync_internal();
rootDomain->allowPowerChange(pmRef);
}
@@ -238,88 +198,41 @@
// expert informs us we are the root.
// **********************************************************************************
-#define kRootDomainSettingsCount 12
bool IOPMrootDomain::start ( IOService * nub )
{
- OSIterator *psIterator;
- OSDictionary *tmpDict;
- const OSSymbol *settingsArr[kRootDomainSettingsCount] =
- {
- OSSymbol::withCString(kIOPMSettingSleepOnPowerButtonKey),
- OSSymbol::withCString(kIOPMSettingAutoWakeSecondsKey),
- OSSymbol::withCString(kIOPMSettingAutoPowerSecondsKey),
- OSSymbol::withCString(kIOPMSettingAutoWakeCalendarKey),
- OSSymbol::withCString(kIOPMSettingAutoPowerCalendarKey),
- OSSymbol::withCString(kIOPMSettingDebugWakeRelativeKey),
- OSSymbol::withCString(kIOPMSettingDebugPowerRelativeKey),
- OSSymbol::withCString(kIOPMSettingWakeOnRingKey),
- OSSymbol::withCString(kIOPMSettingRestartOnPowerLossKey),
- OSSymbol::withCString(kIOPMSettingWakeOnClamshellKey),
- OSSymbol::withCString(kIOPMSettingWakeOnACChangeKey),
- OSSymbol::withCString(kIOPMSettingTimeZoneOffsetKey)
- };
-
+ OSDictionary *tmpDict;
pmPowerStateQueue = 0;
- _reserved = (ExpansionData *)IOMalloc(sizeof(ExpansionData));
- if(!_reserved) return false;
-
super::start(nub);
gRootDomain = this;
PMinit();
-
- sleepSupportedPEFunction = OSSymbol::withCString("IOPMSetSleepSupported");
- canSleep = true;
- setProperty(kIOSleepSupportedKey,true);
-
+ setProperty("IOSleepSupported","");
allowSleep = true;
sleepIsSupported = true;
systemBooting = true;
+ ignoringClamshell = true;
sleepSlider = 0;
idleSleepPending = false;
+ canSleep = true;
wrangler = NULL;
sleepASAP = false;
- clamshellIsClosed = false;
- clamshellExists = false;
- ignoringClamshell = true;
ignoringClamshellDuringWakeup = false;
- acAdaptorConnect = true;
tmpDict = OSDictionary::withCapacity(1);
setProperty(kRootDomainSupportedFeatures, tmpDict);
tmpDict->release();
-
- 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);
-
+
pm_vars->PMworkloop = IOWorkLoop::workLoop();
pmPowerStateQueue = IOPMPowerStateQueue::PMPowerStateQueue(this);
pm_vars->PMworkloop->addEventSource(pmPowerStateQueue);
- featuresDictLock = IOLockAlloc();
- settingsCtrlLock = IORecursiveLockAlloc();
-
- 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);
+ 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);
// create our parent
patriarch = new IORootParent;
@@ -329,7 +242,7 @@
patriarch->youAreRoot();
patriarch->wakeSystem();
patriarch->addPowerChild(this);
-
+
registerPowerDriver(this,ourPowerStates,number_of_power_states);
setPMRootDomain(this);
@@ -340,35 +253,11 @@
registerPrioritySleepWakeInterest( &sysPowerDownHandler, this, 0);
// Register for a notification when IODisplayWrangler is published
- _displayWranglerNotifier = addNotification(
- gIOPublishNotification, serviceMatching("IODisplayWrangler"),
- &displayWranglerPublished, this, 0);
-
- // Battery location published - ApplePMU support only
- _batteryPublishNotifier = addNotification(
- gIOPublishNotification, serviceMatching("IOPMPowerSource"),
- &batteryPublished, this, this);
-
+ addNotification( gIOPublishNotification, serviceMatching("IODisplayWrangler"), &displayWranglerPublished, this, 0);
const OSSymbol *ucClassName = OSSymbol::withCStringNoCopy("RootDomainUserClient");
- setProperty(gIOUserClientClassKey, (OSObject *) ucClassName);
+ setProperty(gIOUserClientClassKey, (OSMetaClassBase *) ucClassName);
ucClassName->release();
-
- // 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() )
- {
- // There's at least one battery on the system, so we publish
- // 'DisplayDims' support for the LCD.
- publishFeature("DisplayDims");
- }
- if(psIterator) {
- psIterator->release();
- }
-
- IOHibernateSystemInit(this);
registerService(); // let clients find us
@@ -383,94 +272,24 @@
// **********************************************************************************
IOReturn IOPMrootDomain::setProperties ( OSObject *props_obj)
{
- IOReturn return_value = kIOReturnSuccess;
- OSDictionary *dict = OSDynamicCast(OSDictionary, props_obj);
- OSBoolean *b;
- OSNumber *n;
- OSString *str;
- OSSymbol *type;
- OSObject *obj;
- unsigned int i;
-
- const OSSymbol *boot_complete_string =
- OSSymbol::withCString("System Boot Complete");
- const OSSymbol *stall_halt_string =
- OSSymbol::withCString("StallSystemAtHalt");
- 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);
-
- if(!dict)
- {
- return_value = kIOReturnBadArgument;
- goto exit;
- }
-
- if( systemBooting
- && boot_complete_string
- && dict->getObject(boot_complete_string))
+ OSDictionary *dict = OSDynamicCast(OSDictionary, props_obj);
+ OSBoolean *b;
+
+ if(!dict) return kIOReturnBadArgument;
+
+ if(systemBooting && dict->getObject(OSString::withCString("System Boot Complete")))
{
systemBooting = false;
+ //kprintf("IOPM: received System Boot Complete property\n");
adjustPowerState();
-
- // If lid is closed, re-send lid closed notification
- // now that booting is complete.
- if( clamshellIsClosed )
- {
- this->receivePowerNotification(kLocalEvalClamshellCommand);
- }
- }
-
- if( stall_halt_string
- && (b = OSDynamicCast(OSBoolean, dict->getObject(stall_halt_string))) )
- {
- setProperty(stall_halt_string, b);
- }
-
- if ( hibernatemode_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatemode_string))))
- {
- setProperty(hibernatemode_string, n);
- }
- if ( hibernatefreeratio_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatefreeratio_string))))
- {
- setProperty(hibernatefreeratio_string, n);
- }
- if ( hibernatefreetime_string
- && (n = OSDynamicCast(OSNumber, dict->getObject(hibernatefreetime_string))))
- {
- setProperty(hibernatefreetime_string, n);
- }
- if ( hibernatefile_string
- && (str = OSDynamicCast(OSString, dict->getObject(hibernatefile_string))))
- {
- setProperty(hibernatefile_string, str);
- }
-
- // 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(b = dict->getObject(OSString::withCString("DisablePowerButtonSleep")))
+ {
+ setProperty(OSString::withCString("DisablePowerButtonSleep"), b);
+ }
- return_value = setPMSetting(type, obj);
-
- if(kIOReturnSuccess != return_value) goto exit;
- }
-
- exit:
- if(boot_complete_string) boot_complete_string->release();
- if(stall_halt_string) stall_halt_string->release();
- return return_value;
+ return kIOReturnSuccess;
}
@@ -584,12 +403,13 @@
void IOPMrootDomain::stopIgnoringClamshellEventsDuringWakeup(void)
{
+ OSObject * state;
+
// Allow clamshell-induced sleep now
ignoringClamshellDuringWakeup = false;
- // Re-send clamshell event, in case it causes a sleep
- if(clamshellIsClosed)
- this->receivePowerNotification( kLocalEvalClamshellCommand );
+ if ((state = getProperty(kAppleClamshellStateKey)))
+ publishResource(kAppleClamshellStateKey, state);
}
//*********************************************************************************
@@ -601,24 +421,8 @@
// same thread.
//*********************************************************************************
-static int pmsallsetup = 0;
-
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
-
if ( pm_vars->PMcommandGate ) {
pm_vars->PMcommandGate->runAction(broadcast_aggressiveness,(void *)type,(void *)newLevel);
}
@@ -633,9 +437,9 @@
// **********************************************************************************
IOReturn IOPMrootDomain::sleepSystem ( void )
{
+ //kprintf("sleep demand received\n");
if ( !systemBooting && allowSleep && sleepIsSupported ) {
patriarch->sleepSystem();
-
return kIOReturnSuccess;
}
if ( !systemBooting && allowSleep && !sleepIsSupported ) {
@@ -692,18 +496,14 @@
{
// re-enable this timer for next sleep
idleSleepPending = false;
-
- IOLog("System %sSleep\n", gIOHibernateState ? "Safe" : "");
-
- IOHibernateSystemHasSlept();
-
+ IOLog("System Sleep\n");
pm_vars->thePlatform->sleepKernel();
// The CPU(s) are off at this point. When they're awakened by CPU interrupt,
- // code will resume execution here.
-
+ // code will resume exeuction here.
+
// Now we're waking...
- IOHibernateSystemWake();
+ ioSPMTrace(IOPOWER_WAKE, * (int *) this);
// stay awake for at least 30 seconds
clock_interval_to_deadline(30, kSecondScale, &deadline);
@@ -728,7 +528,7 @@
tellClients(kIOMessageSystemWillPowerOn);
// tell the tree we're waking
- IOLog("System %sWake\n", gIOHibernateState ? "SafeSleep " : "");
+ IOLog("System Wake\n");
systemWake();
// Allow drivers to request extra processing time before clamshell
@@ -737,9 +537,7 @@
if(getProperty(kIOREMSleepEnabledKey)) {
// clamshellWakeupIgnore callout clears ignoreClamshellDuringWakeup bit
clock_interval_to_deadline(5, kSecondScale, &deadline);
- if(clamshellWakeupIgnore) {
- thread_call_enter_delayed(clamshellWakeupIgnore, deadline);
- }
+ if(clamshellWakeupIgnore) thread_call_enter_delayed(clamshellWakeupIgnore, deadline);
} else ignoringClamshellDuringWakeup = false;
// Find out what woke us
@@ -804,11 +602,8 @@
{
if ( pm_vars->myCurrentState == DOZE_STATE )
{
- // Reset sleep support till next sleep attempt.
- // A machine's support of sleep vs. doze can change over the course of
- // a running system, so we recalculate it before every sleep.
- setSleepSupported(0);
-
+ // reset this till next attempt
+ canSleep = true;
powerOverrideOffPriv();
// early wake notification
@@ -820,499 +615,65 @@
}
-// *****************************************************************************
+// **********************************************************************************
// publishFeature
//
// Adds a new feature to the supported features dictionary
//
//
-// *****************************************************************************
+// **********************************************************************************
void IOPMrootDomain::publishFeature( const char * feature )
{
- publishFeature(feature, kIOPMSupportedOnAC
- | kIOPMSupportedOnBatt
- | kIOPMSupportedOnUPS,
- NULL);
- return;
-}
-
-
-// *****************************************************************************
-// 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 = supportedWhere + (next_feature_id << 16);
- 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);
- existing_feature_arr->setObject(new_feature_data);
- features->setObject(feature, existing_feature_arr);
- } else if(( existing_feature_arr = OSDynamicCast(OSArray, osObj) ))
- {
- // Add object to existing array
- existing_feature_arr->setObject(new_feature_data);
- }
- } 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();
-
- // Notify EnergySaver and all those in user space so they might
- // re-populate their feature specific UI
- messageClients(kIOPMMessageFeatureChange, this);
-
- if(featuresDictLock) IOLockUnlock(featuresDictLock);
-}
-
-// *****************************************************************************
-// 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;
-
- 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 just remove the element in question.
- arrayMember->removeObject(i);
- }
-
- 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
- messageClients(kIOPMMessageFeatureChange, this);
- } else {
- ret = kIOReturnNotFound;
- }
-
-exit:
- if(features) features->release();
- if(featuresDictLock) IOLockUnlock(featuresDictLock);
- return ret;
-}
-
-
-// **********************************************************************************
-// unIdleDevice
-//
-// Enqueues unidle event to be performed later in a serialized context.
-//
-// **********************************************************************************
+ OSDictionary *features = (OSDictionary *)getProperty(kRootDomainSupportedFeatures);
+
+ features->setObject(feature, kOSBooleanTrue);
+}
+
void IOPMrootDomain::unIdleDevice( IOService *theDevice, unsigned long theState )
{
if(pmPowerStateQueue)
pmPowerStateQueue->unIdleOccurred(theDevice, theState);
}
-// **********************************************************************************
-// announcePowerSourceChange
-//
-// Notifies "interested parties" that the batteries have changed state
-//
-// **********************************************************************************
void IOPMrootDomain::announcePowerSourceChange( void )
{
- IORegistryEntry *_batteryRegEntry = (IORegistryEntry *) getProperty("BatteryEntry");
-
- // (if possible) re-publish power source state under IOPMrootDomain;
- // only do so if the battery controller publishes an IOResource
- // defining battery location. Called from ApplePMU battery driver.
-
- if(_batteryRegEntry)
- {
- OSArray *batt_info;
- batt_info = (OSArray *) _batteryRegEntry->getProperty(kIOBatteryInfoKey);
- if(batt_info)
- setProperty(kIOBatteryInfoKey, batt_info);
- }
-
-}
-
-
-// *****************************************************************************
-// 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 *obj)
-{
- OSArray *arr = NULL;
- PMSettingObject *p_obj = NULL;
- int count;
- int i;
-
- if(NULL == type) return kIOReturnBadArgument;
-
- IORecursiveLockLock(settingsCtrlLock);
-
- fPMSettingsDict->setObject(type, obj);
-
- arr = (OSArray *)settingsCallbacks->getObject(type);
- if(NULL == arr) goto exit;
- count = arr->getCount();
- for(i=0; i<count; i++) {
- p_obj = (PMSettingObject *)OSDynamicCast(PMSettingObject, arr->getObject(i));
- if(p_obj) p_obj->setPMSetting(type, obj);
- }
-
-exit:
- IORecursiveLockUnlock(settingsCtrlLock);
- 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;
-
- IORecursiveLockLock(settingsCtrlLock);
- obj = fPMSettingsDict->getObject(whichSetting);
- if(obj) {
- obj->retain();
- }
- IORecursiveLockUnlock(settingsCtrlLock);
-
- 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;
- OSArray *list = NULL;
- IOReturn ret = kIOReturnSuccess;
- int i;
-
- if( NULL == settings ||
- NULL == func ||
- NULL == handle)
- {
- return kIOReturnBadArgument;
- }
-
-
- pmso = PMSettingObject::pmSettingObject(
- (IOPMrootDomain *)this, func, target,
- refcon, supportedPowerSources, settings);
-
- if(!pmso) {
- ret = kIOReturnInternalError;
- goto bail_no_unlock;
- }
-
- IORecursiveLockLock(settingsCtrlLock);
- 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);
- }
-
- ret = kIOReturnSuccess;
-
- // Track this instance by its OSData ptr from now on
- *handle = pmso;
-
- IORecursiveLockUnlock(settingsCtrlLock);
-
-bail_no_unlock:
- if(kIOReturnSuccess != ret)
- {
- // Error return case
- if(pmso) pmso->release();
- if(handle) *handle = NULL;
- }
- return ret;
-}
-
-//******************************************************************************
-// sleepOnClamshellClosed
-//
-// contains the logic to determine if the system should sleep when the clamshell
-// is closed.
-//******************************************************************************
-
-bool IOPMrootDomain::shouldSleepOnClamshellClosed ( void )
-{
- return ( !ignoringClamshell
- && !ignoringClamshellDuringWakeup
- && !(desktopMode && acAdaptorConnect) );
-}
-
-void IOPMrootDomain::sendClientClamshellNotification ( void )
-{
- /* Only broadcast clamshell alert if clamshell exists. */
- if(!clamshellExists)
- return;
-
- setProperty(kAppleClamshellStateKey,
- clamshellIsClosed ? kOSBooleanTrue : kOSBooleanFalse);
-
- setProperty(kAppleClamshellCausesSleepKey,
- shouldSleepOnClamshellClosed() ? kOSBooleanTrue : kOSBooleanFalse);
-
-
- /* Argument to message is a bitfiel of
- * ( kClamshellStateBit | kClamshellSleepBit )
- */
- messageClients(kIOPMMessageClamshellStateChange,
- (void *) ( (clamshellIsClosed ? kClamshellStateBit : 0)
- | ( shouldSleepOnClamshellClosed() ? kClamshellSleepBit : 0)) );
-}
-
-//******************************************************************************
+ messageClients(kIOPMMessageBatteryStatusHasChanged);
+}
+
+//*********************************************************************************
// receivePowerNotification
//
// 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)
{
- bool eval_clamshell = false;
-
- /*
- * Local (IOPMrootDomain only) eval clamshell command
- */
- if (msg & kLocalEvalClamshellCommand)
- {
- eval_clamshell = true;
- }
-
- /*
- * Overtemp
- */
if (msg & kIOPMOverTemp)
{
- IOLog("PowerManagement emergency overtemp signal. Going to sleep!");
+ IOLog("Power Management received emergency overtemp signal. Going to sleep.");
(void) sleepSystem ();
}
-
- /*
- * PMU Processor Speed Change
- */
+ 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;
+ }
+
if (msg & kIOPMProcessorSpeedChange)
{
IOService *pmu = waitForService(serviceMatching("ApplePMU"));
@@ -1321,138 +682,26 @@
pmu->callPlatformFunction("recoverFromSleep", false, 0, 0, 0, 0);
}
- /*
- * Sleep Now!
- */
if (msg & kIOPMSleepNow)
{
(void) sleepSystem ();
}
- /*
- * Power Emergency
- */
if (msg & kIOPMPowerEmergency)
{
(void) sleepSystem ();
}
-
- /*
- * Clamshell OPEN
- */
- if (msg & kIOPMClamshellOpened)
- {
- // Received clamshel open message from clamshell controlling driver
- // Update our internal state and tell general interest clients
- clamshellIsClosed = false;
- clamshellExists = true;
-
- sendClientClamshellNotification();
- }
-
- /*
- * 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
- clamshellIsClosed = true;
- clamshellExists = true;
-
- 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( clamshellIsClosed )
+ if (msg & kIOPMClamshellClosed)
+ {
+ if ( !ignoringClamshell && !ignoringClamshellDuringWakeup
+ && (!desktopMode || !acAdaptorConnect) )
{
- eval_clamshell = true;
+
+ (void) sleepSystem ();
}
}
-
- /*
- * AC Adaptor connected
- *
- * -> reevaluate lid state
- */
- if (msg & kIOPMSetACAdaptorConnected)
- {
- acAdaptorConnect = (0 != (msg & kIOPMSetValue));
- msg &= ~(kIOPMSetACAdaptorConnected | kIOPMSetValue);
-
- sendClientClamshellNotification();
-
- // Re-evaluate the lid state
- if( clamshellIsClosed )
- {
- 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( clamshellIsClosed && (true == ignoringClamshell) )
- {
- eval_clamshell = true;
- }
-
- ignoringClamshell = 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)
- {
- ignoringClamshell = true;
-
- sendClientClamshellNotification();
- }
-
- /*
- * Evaluate clamshell and SLEEP if appropiate
- */
- if ( eval_clamshell && shouldSleepOnClamshellClosed() )
- {
-
-
- // SLEEP!
- sleepSystem();
- }
-
- /*
- * Power Button
- */
+
if (msg & kIOPMPowerButton)
{
// toggle state of sleep/wake
@@ -1465,29 +714,23 @@
reportUserInput();
}
else {
- OSString *pbs = OSString::withCString("DisablePowerButtonSleep");
// Check that power button sleep is enabled
- if( pbs ) {
- if( kOSBooleanTrue != getProperty(pbs))
+ if(kOSBooleanTrue != getProperty(OSString::withCString("DisablePowerButtonSleep")))
sleepSystem();
- }
}
}
- /*
- * Allow Sleep
- *
- */
+ // if the case has been closed, we allow
+ // the machine to be put to sleep or to idle sleep
+
if ( (msg & kIOPMAllowSleep) && !allowSleep )
{
allowSleep = true;
adjustPowerState();
}
- /*
- * Prevent Sleep
- *
- */
+ // if the case has been opened, we disallow sleep/doze
+
if (msg & kIOPMPreventSleep) {
allowSleep = false;
// are we dozing?
@@ -1519,11 +762,8 @@
{
canSleep = false;
} else {
- canSleep = true;
platformSleepSupport = flags;
}
-
- setProperty(kIOSleepSupportedKey, canSleep);
}
@@ -1622,23 +862,10 @@
switch ( stateNum ) {
case DOZE_STATE:
case SLEEP_STATE:
-
- // Direct callout into OSMetaClass so it can disable kmod unloads
- // during sleep/wake to prevent deadlocks.
- OSMetaClassSystemSleepOrWake( kIOMessageSystemWillSleep );
-
return super::tellClientsWithResponse(kIOMessageSystemWillSleep);
case RESTART_STATE:
- // Unsupported shutdown ordering hack on RESTART only
- // For Bluetooth and USB (4368327)
- super::tellClients(iokit_common_msg(0x759));
-
return super::tellClientsWithResponse(kIOMessageSystemWillRestart);
case OFF_STATE:
- // Unsupported shutdown ordering hack on SHUTDOWN only
- // For Bluetooth and USB (4554440)
- super::tellClients(iokit_common_msg(0x749));
-
return super::tellClientsWithResponse(kIOMessageSystemWillPowerOff);
}
// this shouldn't execute
@@ -1692,11 +919,6 @@
{
if ( stateNum == ON_STATE )
{
- // Direct callout into OSMetaClass so it can disable kmod unloads
- // during sleep/wake to prevent deadlocks.
- OSMetaClassSystemSleepOrWake( kIOMessageSystemHasPoweredOn );
-
- IOHibernateSystemPostWake();
return tellClients(kIOMessageSystemHasPoweredOn);
}
}
@@ -1752,25 +974,14 @@
IOReturn IOPMrootDomain::changePowerStateTo ( unsigned long ordinal )
{
+ ioSPMTrace(IOPOWER_ROOT, * (int *) this, (int) true, (int) ordinal);
+
return super::changePowerStateTo(ordinal);
}
IOReturn IOPMrootDomain::changePowerStateToPriv ( unsigned long ordinal )
{
- IOReturn ret;
-
- if( SLEEP_STATE == ordinal && sleepSupportedPEFunction )
- {
-
- // Determine if the machine supports sleep, or must doze.
- ret = getPlatform()->callPlatformFunction(
- sleepSupportedPEFunction, false,
- NULL, NULL, NULL, NULL);
-
- // If the machine only supports doze, the callPlatformFunction call
- // boils down toIOPMrootDomain::setSleepSupported(kPCICantSleep),
- // otherwise nothing.
- }
+ ioSPMTrace(IOPOWER_ROOT, * (int *) this, (int) false, (int) ordinal);
return super::changePowerStateToPriv(ordinal);
}
@@ -1811,8 +1022,6 @@
// 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
if ( ! OSCompareAndSwap( 0, 1, &gSleepOrShutdownPending ) )
{
@@ -1931,13 +1140,10 @@
//
//*********************************************************************************
-bool IOPMrootDomain::displayWranglerPublished(
- void * target,
- void * refCon,
- IOService * newService)
-{
- IOPMrootDomain *rootDomain =
- OSDynamicCast(IOPMrootDomain, (IOService *)target);
+bool IOPMrootDomain::displayWranglerPublished( void * target, void * refCon,
+ IOService * newService)
+{
+ IOPMrootDomain * rootDomain = OSDynamicCast(IOPMrootDomain, (IOService *)target);
if(!rootDomain)
return false;
@@ -1945,38 +1151,13 @@
rootDomain->wrangler = newService;
// we found the display wrangler, now install a handler
- if( !rootDomain->wrangler->registerInterest( gIOGeneralInterest,
- &displayWranglerNotification, target, 0) )
- {
+ if( !rootDomain->wrangler->registerInterest( gIOGeneralInterest, &displayWranglerNotification, target, 0) ) {
+ IOLog("IOPMrootDomain::displayWranglerPublished registerInterest failed\n");
return false;
}
return true;
}
-
-
-//*********************************************************************************
-// batteryPublished
-//
-// Notification on battery class IOPowerSource appearance
-//
-//******************************************************************************
-
-bool IOPMrootDomain::batteryPublished(
- void * target,
- void * root_domain,
- IOService * resourceService )
-{
- // 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);
-}
-
//*********************************************************************************
@@ -2021,117 +1202,6 @@
}
}
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-
-
-#undef super
-#define super OSObject
-OSDefineMetaClassAndStructors(PMSettingObject, OSObject)
-
-void PMSettingObject::setPMSetting(const OSSymbol *type, OSObject *obj)
-{
- (*func)(target, type, obj, refcon);
-}
-
-/*
- * 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[])
-{
- uint32_t objCount = 0;
- PMSettingObject *pmso;
-
- if( !parent_arg || !handler_arg || !settings ) return NULL;
-
- // count OSSymbol entries in NULL terminated settings array
- while( settings[objCount] ) {
- objCount++;
- }
- if(0 == objCount) return NULL;
-
- pmso = new PMSettingObject;
- if(!pmso || !pmso->init()) return NULL;
-
- pmso->parent = parent_arg;
- pmso->func = handler_arg;
- pmso->target = target_arg;
- pmso->refcon = refcon_arg;
- pmso->releaseAtCount = objCount + 1; // release when it has count+1 retains
-
- pmso->publishedFeatureID = (uint32_t *)IOMalloc(sizeof(uint32_t)*objCount);
- if(pmso->publishedFeatureID) {
- for(unsigned int i=0; i<objCount; 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] );
- }
- }
-
- return pmso;
-}
-
-void PMSettingObject::free(void)
-{
- OSCollectionIterator *settings_iter;
- OSSymbol *sym;
- OSArray *arr;
- int arr_idx;
- int i;
- int objCount = releaseAtCount - 1;
-
- if(publishedFeatureID) {
- for(i=0; i<objCount; i++) {
- if(0 != publishedFeatureID[i]) {
- parent->removePublishedFeature( publishedFeatureID[i] );
- }
- }
-
- IOFree(publishedFeatureID, sizeof(uint32_t) * objCount);
- }
-
- IORecursiveLockLock(parent->settingsCtrlLock);
-
- // Search each PM settings array in the kernel.
- settings_iter = OSCollectionIterator::withCollection(parent->settingsCallbacks);
- if(settings_iter)
- {
- while(( sym = OSDynamicCast(OSSymbol, settings_iter->getNextObject()) ))
- {
- arr = (OSArray *)parent->settingsCallbacks->getObject(sym);
- arr_idx = arr->getNextIndexOfObject(this, 0);
- if(-1 != arr_idx) {
- // 'this' was found in the array; remove it
- arr->removeObject(arr_idx);
- }
- }
-
- settings_iter->release();
- }
-
- IORecursiveLockUnlock(parent->settingsCtrlLock);
-
- super::free();
-}
-
-void PMSettingObject::taggedRelease(const void *tag, const int when) const
-{
- // We have n+1 retains - 1 per array that this PMSettingObject is a member
- // of, and 1 retain to ourself. When we get a release with n+1 retains
- // remaining, we go ahead and free ourselves, cleaning up array pointers
- // in free();
-
- super::taggedRelease(tag, releaseAtCount);
-}
-
-
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
@@ -2211,23 +1281,3 @@
changePowerStateToPriv(ON_STATE);
}
-IOReturn IORootParent::changePowerStateToPriv ( unsigned long ordinal )
-{
- IOReturn ret;
-
- if( SLEEP_STATE == ordinal && sleepSupportedPEFunction )
- {
-
- // Determine if the machine supports sleep, or must doze.
- ret = getPlatform()->callPlatformFunction(
- sleepSupportedPEFunction, false,
- NULL, NULL, NULL, NULL);
-
- // If the machine only supports doze, the callPlatformFunction call
- // boils down toIOPMrootDomain::setSleepSupported(kPCICantSleep),
- // otherwise nothing.
- }
-
- return super::changePowerStateToPriv(ordinal);
-}
-