| 1 | /** @file
|
|---|
| 2 | *
|
|---|
| 3 | * VirtualBox interface to host's power notification service
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2008 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | */
|
|---|
| 17 |
|
|---|
| 18 | #include "HostPower.h"
|
|---|
| 19 | #include "Logging.h"
|
|---|
| 20 |
|
|---|
| 21 | #include <IOKit/IOMessage.h>
|
|---|
| 22 | #include <IOKit/ps/IOPowerSources.h>
|
|---|
| 23 | #include <IOKit/ps/IOPSKeys.h>
|
|---|
| 24 |
|
|---|
| 25 | #define POWER_SOURCE_OUTLET 1
|
|---|
| 26 | #define POWER_SOURCE_BATTERY 2
|
|---|
| 27 |
|
|---|
| 28 | HostPowerServiceDarwin::HostPowerServiceDarwin (VirtualBox *aVirtualBox)
|
|---|
| 29 | : HostPowerService (aVirtualBox)
|
|---|
| 30 | , mThread (NULL)
|
|---|
| 31 | , mRootPort (MACH_PORT_NULL)
|
|---|
| 32 | , mNotifyPort (nil)
|
|---|
| 33 | , mRunLoop (nil)
|
|---|
| 34 | , mCritical (false)
|
|---|
| 35 | {
|
|---|
| 36 | /* Create the new worker thread. */
|
|---|
| 37 | int rc = RTThreadCreate (&mThread, HostPowerServiceDarwin::powerChangeNotificationThread, this, 65536,
|
|---|
| 38 | RTTHREADTYPE_IO, RTTHREADFLAGS_WAITABLE, "MainPower");
|
|---|
| 39 |
|
|---|
| 40 | if (RT_FAILURE(rc))
|
|---|
| 41 | LogFlow (("RTThreadCreate failed with %Rrc\n", rc));
|
|---|
| 42 | }
|
|---|
| 43 |
|
|---|
| 44 | HostPowerServiceDarwin::~HostPowerServiceDarwin()
|
|---|
| 45 | {
|
|---|
| 46 | /* Jump out of the run loop. */
|
|---|
| 47 | CFRunLoopStop (mRunLoop);
|
|---|
| 48 | /* Remove the sleep notification port from the application runloop. */
|
|---|
| 49 | CFRunLoopRemoveSource (CFRunLoopGetCurrent(),
|
|---|
| 50 | IONotificationPortGetRunLoopSource (mNotifyPort),
|
|---|
| 51 | kCFRunLoopCommonModes);
|
|---|
| 52 | /* Deregister for system sleep notifications. */
|
|---|
| 53 | IODeregisterForSystemPower (&mNotifierObject);
|
|---|
| 54 | /* IORegisterForSystemPower implicitly opens the Root Power Domain
|
|---|
| 55 | * IOService so we close it here. */
|
|---|
| 56 | IOServiceClose (mRootPort);
|
|---|
| 57 | /* Destroy the notification port allocated by IORegisterForSystemPower */
|
|---|
| 58 | IONotificationPortDestroy (mNotifyPort);
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 |
|
|---|
| 62 | DECLCALLBACK(int) HostPowerServiceDarwin::powerChangeNotificationThread (RTTHREAD /* ThreadSelf */, void *pInstance)
|
|---|
| 63 | {
|
|---|
| 64 | HostPowerServiceDarwin *pPowerObj = static_cast<HostPowerServiceDarwin *> (pInstance);
|
|---|
| 65 |
|
|---|
| 66 | /* We have to initial set the critical state of the battery, cause we want
|
|---|
| 67 | * not the HostPowerService to inform about that state when a VM starts.
|
|---|
| 68 | * See lowPowerHandler for more info. */
|
|---|
| 69 | pPowerObj->checkBatteryCriticalLevel();
|
|---|
| 70 |
|
|---|
| 71 | /* Register to receive system sleep notifications */
|
|---|
| 72 | pPowerObj->mRootPort = IORegisterForSystemPower (pPowerObj, &pPowerObj->mNotifyPort,
|
|---|
| 73 | HostPowerServiceDarwin::powerChangeNotificationHandler,
|
|---|
| 74 | &pPowerObj->mNotifierObject);
|
|---|
| 75 | if (pPowerObj->mRootPort == MACH_PORT_NULL)
|
|---|
| 76 | {
|
|---|
| 77 | LogFlow (("IORegisterForSystemPower failed\n"));
|
|---|
| 78 | return VERR_NOT_SUPPORTED;
|
|---|
| 79 | }
|
|---|
| 80 | pPowerObj->mRunLoop = CFRunLoopGetCurrent();
|
|---|
| 81 | /* Add the notification port to the application runloop */
|
|---|
| 82 | CFRunLoopAddSource (pPowerObj->mRunLoop,
|
|---|
| 83 | IONotificationPortGetRunLoopSource (pPowerObj->mNotifyPort),
|
|---|
| 84 | kCFRunLoopCommonModes);
|
|---|
| 85 |
|
|---|
| 86 | /* Register for all battery change events. The handler will check for low
|
|---|
| 87 | * power events themself. */
|
|---|
| 88 | CFRunLoopSourceRef runLoopSource = IOPSNotificationCreateRunLoopSource(HostPowerServiceDarwin::lowPowerHandler,
|
|---|
| 89 | pPowerObj);
|
|---|
| 90 | CFRunLoopAddSource(pPowerObj->mRunLoop,
|
|---|
| 91 | runLoopSource,
|
|---|
| 92 | kCFRunLoopCommonModes);
|
|---|
| 93 |
|
|---|
| 94 | /* Start the run loop. This blocks. */
|
|---|
| 95 | CFRunLoopRun();
|
|---|
| 96 | return VINF_SUCCESS;
|
|---|
| 97 | }
|
|---|
| 98 |
|
|---|
| 99 | void HostPowerServiceDarwin::powerChangeNotificationHandler (void *pvData, io_service_t /* service */, natural_t messageType, void *pMessageArgument)
|
|---|
| 100 | {
|
|---|
| 101 | HostPowerServiceDarwin *pPowerObj = static_cast<HostPowerServiceDarwin *> (pvData);
|
|---|
| 102 | Log (( "powerChangeNotificationHandler: messageType %08lx, arg %08lx\n", (long unsigned int)messageType, (long unsigned int)pMessageArgument));
|
|---|
| 103 |
|
|---|
| 104 | switch (messageType)
|
|---|
| 105 | {
|
|---|
| 106 | case kIOMessageCanSystemSleep:
|
|---|
| 107 | {
|
|---|
| 108 | /* Idle sleep is about to kick in. This message will not be
|
|---|
| 109 | * sent for forced sleep. Applications have a chance to prevent
|
|---|
| 110 | * sleep by calling IOCancelPowerChange. Most applications
|
|---|
| 111 | * should not prevent idle sleep. Power Management waits up to
|
|---|
| 112 | * 30 seconds for you to either allow or deny idle sleep. If
|
|---|
| 113 | * you don't acknowledge this power change by calling either
|
|---|
| 114 | * IOAllowPowerChange or IOCancelPowerChange, the system will
|
|---|
| 115 | * wait 30 seconds then go to sleep. */
|
|---|
| 116 | IOAllowPowerChange (pPowerObj->mRootPort, reinterpret_cast<long> (pMessageArgument));
|
|---|
| 117 | break;
|
|---|
| 118 | }
|
|---|
| 119 | case kIOMessageSystemWillSleep:
|
|---|
| 120 | {
|
|---|
| 121 | /* The system will go for sleep. */
|
|---|
| 122 | pPowerObj->notify (HostPowerEvent_Suspend);
|
|---|
| 123 | /* If you do not call IOAllowPowerChange or IOCancelPowerChange to
|
|---|
| 124 | * acknowledge this message, sleep will be delayed by 30 seconds.
|
|---|
| 125 | * NOTE: If you call IOCancelPowerChange to deny sleep it returns
|
|---|
| 126 | * kIOReturnSuccess, however the system WILL still go to sleep. */
|
|---|
| 127 | IOAllowPowerChange (pPowerObj->mRootPort, reinterpret_cast<long> (pMessageArgument));
|
|---|
| 128 | break;
|
|---|
| 129 | }
|
|---|
| 130 | case kIOMessageSystemWillPowerOn:
|
|---|
| 131 | {
|
|---|
| 132 | /* System has started the wake up process. */
|
|---|
| 133 | break;
|
|---|
| 134 | }
|
|---|
| 135 | case kIOMessageSystemHasPoweredOn:
|
|---|
| 136 | {
|
|---|
| 137 | /* System has finished the wake up process. */
|
|---|
| 138 | pPowerObj->notify (HostPowerEvent_Resume);
|
|---|
| 139 | break;
|
|---|
| 140 | }
|
|---|
| 141 | default:
|
|---|
| 142 | break;
|
|---|
| 143 | }
|
|---|
| 144 | }
|
|---|
| 145 |
|
|---|
| 146 | void HostPowerServiceDarwin::lowPowerHandler (void *pvData)
|
|---|
| 147 | {
|
|---|
| 148 | HostPowerServiceDarwin *pPowerObj = static_cast<HostPowerServiceDarwin *> (pvData);
|
|---|
| 149 |
|
|---|
| 150 | /* Following role for sending the BatteryLow event (5% is critical):
|
|---|
| 151 | * - Not at VM start even if the battery is in an critical state already.
|
|---|
| 152 | * - When the power cord is removed so the power supply change from AC to
|
|---|
| 153 | * battery & the battery is in an critical state nothing is triggered.
|
|---|
| 154 | * This has to be discussed.
|
|---|
| 155 | * - When the power supply is the battery & the state of the battery level
|
|---|
| 156 | * changed from normal to critical. The state transition from critical to
|
|---|
| 157 | * normal triggers nothing. */
|
|---|
| 158 | bool fCriticalStateChanged = false;
|
|---|
| 159 | pPowerObj->checkBatteryCriticalLevel (&fCriticalStateChanged);
|
|---|
| 160 | if (fCriticalStateChanged)
|
|---|
| 161 | pPowerObj->notify (HostPowerEvent_BatteryLow);
|
|---|
| 162 | }
|
|---|
| 163 |
|
|---|
| 164 | void HostPowerServiceDarwin::checkBatteryCriticalLevel (bool *pfCriticalChanged)
|
|---|
| 165 | {
|
|---|
| 166 | CFTypeRef pBlob = IOPSCopyPowerSourcesInfo();
|
|---|
| 167 | CFArrayRef pSources = IOPSCopyPowerSourcesList (pBlob);
|
|---|
| 168 |
|
|---|
| 169 | CFDictionaryRef pSource = NULL;
|
|---|
| 170 | const void *psValue;
|
|---|
| 171 | bool result;
|
|---|
| 172 | int powerSource = POWER_SOURCE_OUTLET;
|
|---|
| 173 | bool critical = false;
|
|---|
| 174 |
|
|---|
| 175 | if (CFArrayGetCount (pSources) > 0)
|
|---|
| 176 | {
|
|---|
| 177 | for (int i = 0; i < CFArrayGetCount (pSources); ++i)
|
|---|
| 178 | {
|
|---|
| 179 | pSource = IOPSGetPowerSourceDescription (pBlob, CFArrayGetValueAtIndex (pSources, i));
|
|---|
| 180 | /* If the source is empty skip over to the next one. */
|
|---|
| 181 | if (!pSource)
|
|---|
| 182 | continue;
|
|---|
| 183 | /* Skip all power sources which are currently not present like a
|
|---|
| 184 | * second battery. */
|
|---|
| 185 | if (CFDictionaryGetValue (pSource, CFSTR (kIOPSIsPresentKey)) == kCFBooleanFalse)
|
|---|
| 186 | continue;
|
|---|
| 187 | /* Only internal power types are of interest. */
|
|---|
| 188 | result = CFDictionaryGetValueIfPresent (pSource, CFSTR (kIOPSTransportTypeKey), &psValue);
|
|---|
| 189 | if (result &&
|
|---|
| 190 | CFStringCompare ((CFStringRef)psValue, CFSTR (kIOPSInternalType), 0) == kCFCompareEqualTo)
|
|---|
| 191 | {
|
|---|
| 192 | /* First check which power source we are connect on. */
|
|---|
| 193 | result = CFDictionaryGetValueIfPresent (pSource, CFSTR (kIOPSPowerSourceStateKey), &psValue);
|
|---|
| 194 | if (result &&
|
|---|
| 195 | CFStringCompare ((CFStringRef)psValue, CFSTR (kIOPSACPowerValue), 0) == kCFCompareEqualTo)
|
|---|
| 196 | powerSource = POWER_SOURCE_OUTLET;
|
|---|
| 197 | else if (result &&
|
|---|
| 198 | CFStringCompare ((CFStringRef)psValue, CFSTR (kIOPSBatteryPowerValue), 0) == kCFCompareEqualTo)
|
|---|
| 199 | powerSource = POWER_SOURCE_BATTERY;
|
|---|
| 200 |
|
|---|
| 201 | int curCapacity = 0;
|
|---|
| 202 | int maxCapacity = 1;
|
|---|
| 203 | float remCapacity = 0.0f;
|
|---|
| 204 |
|
|---|
| 205 | /* Fetch the current capacity value of the power source */
|
|---|
| 206 | result = CFDictionaryGetValueIfPresent (pSource, CFSTR (kIOPSCurrentCapacityKey), &psValue);
|
|---|
| 207 | if (result)
|
|---|
| 208 | CFNumberGetValue ((CFNumberRef)psValue, kCFNumberSInt32Type, &curCapacity);
|
|---|
| 209 | /* Fetch the maximum capacity value of the power source */
|
|---|
| 210 | result = CFDictionaryGetValueIfPresent (pSource, CFSTR (kIOPSMaxCapacityKey), &psValue);
|
|---|
| 211 | if (result)
|
|---|
| 212 | CFNumberGetValue ((CFNumberRef)psValue, kCFNumberSInt32Type, &maxCapacity);
|
|---|
| 213 |
|
|---|
| 214 | /* Calculate the remaining capacity in percent */
|
|---|
| 215 | remCapacity = ((float)curCapacity/(float)maxCapacity * 100.0);
|
|---|
| 216 |
|
|---|
| 217 | /* Check for critical. 5 percent is default. */
|
|---|
| 218 | int criticalValue = 5;
|
|---|
| 219 | result = CFDictionaryGetValueIfPresent (pSource, CFSTR (kIOPSDeadWarnLevelKey), &psValue);
|
|---|
| 220 | if (result)
|
|---|
| 221 | CFNumberGetValue ((CFNumberRef)psValue, kCFNumberSInt32Type, &criticalValue);
|
|---|
| 222 | critical = (remCapacity < criticalValue);
|
|---|
| 223 | /* We have to take action only if we are on battery, the
|
|---|
| 224 | * previous state wasn't critical, the state has changed & the
|
|---|
| 225 | * user requested that info. */
|
|---|
| 226 | if (powerSource == POWER_SOURCE_BATTERY &&
|
|---|
| 227 | mCritical == false &&
|
|---|
| 228 | mCritical != critical &&
|
|---|
| 229 | pfCriticalChanged)
|
|---|
| 230 | *pfCriticalChanged = true;
|
|---|
| 231 | Log (("checkBatteryCriticalLevel: Remains: %d.%d%% Critical: %d Critical State Changed: %d\n", (int)remCapacity, (int)(remCapacity * 10) % 10, critical, pfCriticalChanged?*pfCriticalChanged:-1));
|
|---|
| 232 | }
|
|---|
| 233 | }
|
|---|
| 234 | }
|
|---|
| 235 | /* Save the new state */
|
|---|
| 236 | mCritical = critical;
|
|---|
| 237 |
|
|---|
| 238 | CFRelease (pBlob);
|
|---|
| 239 | CFRelease (pSources);
|
|---|
| 240 | }
|
|---|
| 241 |
|
|---|
