1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server; 18 19 import android.database.ContentObserver; 20 import android.os.BatteryStats; 21 22 import com.android.internal.app.IBatteryStats; 23 import com.android.server.am.BatteryStatsService; 24 import com.android.server.lights.Light; 25 import com.android.server.lights.LightsManager; 26 27 import android.app.ActivityManagerNative; 28 import android.content.ContentResolver; 29 import android.content.Context; 30 import android.content.Intent; 31 import android.content.pm.PackageManager; 32 import android.os.BatteryManager; 33 import android.os.BatteryManagerInternal; 34 import android.os.BatteryProperties; 35 import android.os.Binder; 36 import android.os.FileUtils; 37 import android.os.Handler; 38 import android.os.IBatteryPropertiesListener; 39 import android.os.IBatteryPropertiesRegistrar; 40 import android.os.IBinder; 41 import android.os.DropBoxManager; 42 import android.os.RemoteException; 43 import android.os.ServiceManager; 44 import android.os.SystemClock; 45 import android.os.UEventObserver; 46 import android.os.UserHandle; 47 import android.provider.Settings; 48 import android.util.EventLog; 49 import android.util.Slog; 50 51 import java.io.File; 52 import java.io.FileDescriptor; 53 import java.io.FileOutputStream; 54 import java.io.IOException; 55 import java.io.PrintWriter; 56 57 58 /** 59 * <p>BatteryService monitors the charging status, and charge level of the device 60 * battery. When these values change this service broadcasts the new values 61 * to all {@link android.content.BroadcastReceiver IntentReceivers} that are 62 * watching the {@link android.content.Intent#ACTION_BATTERY_CHANGED 63 * BATTERY_CHANGED} action.</p> 64 * <p>The new values are stored in the Intent data and can be retrieved by 65 * calling {@link android.content.Intent#getExtra Intent.getExtra} with the 66 * following keys:</p> 67 * <p>"scale" - int, the maximum value for the charge level</p> 68 * <p>"level" - int, charge level, from 0 through "scale" inclusive</p> 69 * <p>"status" - String, the current charging status.<br /> 70 * <p>"health" - String, the current battery health.<br /> 71 * <p>"present" - boolean, true if the battery is present<br /> 72 * <p>"icon-small" - int, suggested small icon to use for this state</p> 73 * <p>"plugged" - int, 0 if the device is not plugged in; 1 if plugged 74 * into an AC power adapter; 2 if plugged in via USB.</p> 75 * <p>"voltage" - int, current battery voltage in millivolts</p> 76 * <p>"temperature" - int, current battery temperature in tenths of 77 * a degree Centigrade</p> 78 * <p>"technology" - String, the type of battery installed, e.g. "Li-ion"</p> 79 * 80 * <p> 81 * The battery service may be called by the power manager while holding its locks so 82 * we take care to post all outcalls into the activity manager to a handler. 83 * 84 * FIXME: Ideally the power manager would perform all of its calls into the battery 85 * service asynchronously itself. 86 * </p> 87 */ 88 public final class BatteryService extends SystemService { 89 private static final String TAG = BatteryService.class.getSimpleName(); 90 91 private static final boolean DEBUG = false; 92 93 private static final int BATTERY_SCALE = 100; // battery capacity is a percentage 94 95 // Used locally for determining when to make a last ditch effort to log 96 // discharge stats before the device dies. 97 private int mCriticalBatteryLevel; 98 99 private static final int DUMP_MAX_LENGTH = 24 * 1024; 100 private static final String[] DUMPSYS_ARGS = new String[] { "--checkin", "--unplugged" }; 101 102 private static final String DUMPSYS_DATA_PATH = "/data/system/"; 103 104 // This should probably be exposed in the API, though it's not critical 105 private static final int BATTERY_PLUGGED_NONE = 0; 106 107 private final Context mContext; 108 private final IBatteryStats mBatteryStats; 109 private final Handler mHandler; 110 111 private final Object mLock = new Object(); 112 113 private BatteryProperties mBatteryProps; 114 private final BatteryProperties mLastBatteryProps = new BatteryProperties(); 115 private boolean mBatteryLevelCritical; 116 private int mLastBatteryStatus; 117 private int mLastBatteryHealth; 118 private boolean mLastBatteryPresent; 119 private int mLastBatteryLevel; 120 private int mLastBatteryVoltage; 121 private int mLastBatteryTemperature; 122 private boolean mLastBatteryLevelCritical; 123 124 private int mInvalidCharger; 125 private int mLastInvalidCharger; 126 127 private int mLowBatteryWarningLevel; 128 private int mLowBatteryCloseWarningLevel; 129 private int mShutdownBatteryTemperature; 130 131 private int mPlugType; 132 private int mLastPlugType = -1; // Extra state so we can detect first run 133 134 private boolean mBatteryLevelLow; 135 136 private long mDischargeStartTime; 137 private int mDischargeStartLevel; 138 139 private boolean mUpdatesStopped; 140 141 private Led mLed; 142 143 private boolean mSentLowBatteryBroadcast = false; 144 145 public BatteryService(Context context) { 146 super(context); 147 148 mContext = context; 149 mHandler = new Handler(true /*async*/); 150 mLed = new Led(context, getLocalService(LightsManager.class)); 151 mBatteryStats = BatteryStatsService.getService(); 152 153 mCriticalBatteryLevel = mContext.getResources().getInteger( 154 com.android.internal.R.integer.config_criticalBatteryWarningLevel); 155 mLowBatteryWarningLevel = mContext.getResources().getInteger( 156 com.android.internal.R.integer.config_lowBatteryWarningLevel); 157 mLowBatteryCloseWarningLevel = mLowBatteryWarningLevel + mContext.getResources().getInteger( 158 com.android.internal.R.integer.config_lowBatteryCloseWarningBump); 159 mShutdownBatteryTemperature = mContext.getResources().getInteger( 160 com.android.internal.R.integer.config_shutdownBatteryTemperature); 161 162 // watch for invalid charger messages if the invalid_charger switch exists 163 if (new File("/sys/devices/virtual/switch/invalid_charger/state").exists()) { 164 mInvalidChargerObserver.startObserving( 165 "DEVPATH=/devices/virtual/switch/invalid_charger"); 166 } 167 } 168 169 @Override 170 public void onStart() { 171 IBinder b = ServiceManager.getService("batteryproperties"); 172 final IBatteryPropertiesRegistrar batteryPropertiesRegistrar = 173 IBatteryPropertiesRegistrar.Stub.asInterface(b); 174 try { 175 batteryPropertiesRegistrar.registerListener(new BatteryListener()); 176 } catch (RemoteException e) { 177 // Should never happen. 178 } 179 180 publishBinderService("battery", new BinderService()); 181 publishLocalService(BatteryManagerInternal.class, new LocalService()); 182 } 183 184 @Override 185 public void onBootPhase(int phase) { 186 if (phase == PHASE_ACTIVITY_MANAGER_READY) { 187 // check our power situation now that it is safe to display the shutdown dialog. 188 synchronized (mLock) { 189 ContentObserver obs = new ContentObserver(mHandler) { 190 @Override 191 public void onChange(boolean selfChange) { 192 synchronized (mLock) { 193 updateBatteryWarningLevelLocked(); 194 } 195 } 196 }; 197 final ContentResolver resolver = mContext.getContentResolver(); 198 resolver.registerContentObserver(Settings.Global.getUriFor( 199 Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL), 200 false, obs, UserHandle.USER_ALL); 201 updateBatteryWarningLevelLocked(); 202 } 203 } 204 } 205 206 private void updateBatteryWarningLevelLocked() { 207 final ContentResolver resolver = mContext.getContentResolver(); 208 int defWarnLevel = mContext.getResources().getInteger( 209 com.android.internal.R.integer.config_lowBatteryWarningLevel); 210 mLowBatteryWarningLevel = Settings.Global.getInt(resolver, 211 Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, defWarnLevel); 212 if (mLowBatteryWarningLevel == 0) { 213 mLowBatteryWarningLevel = defWarnLevel; 214 } 215 if (mLowBatteryWarningLevel < mCriticalBatteryLevel) { 216 mLowBatteryWarningLevel = mCriticalBatteryLevel; 217 } 218 mLowBatteryCloseWarningLevel = mLowBatteryWarningLevel + mContext.getResources().getInteger( 219 com.android.internal.R.integer.config_lowBatteryCloseWarningBump); 220 processValuesLocked(true); 221 } 222 223 private boolean isPoweredLocked(int plugTypeSet) { 224 // assume we are powered if battery state is unknown so 225 // the "stay on while plugged in" option will work. 226 if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_UNKNOWN) { 227 return true; 228 } 229 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_AC) != 0 && mBatteryProps.chargerAcOnline) { 230 return true; 231 } 232 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_USB) != 0 && mBatteryProps.chargerUsbOnline) { 233 return true; 234 } 235 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_WIRELESS) != 0 && mBatteryProps.chargerWirelessOnline) { 236 return true; 237 } 238 return false; 239 } 240 241 private boolean shouldSendBatteryLowLocked() { 242 final boolean plugged = mPlugType != BATTERY_PLUGGED_NONE; 243 final boolean oldPlugged = mLastPlugType != BATTERY_PLUGGED_NONE; 244 245 /* The ACTION_BATTERY_LOW broadcast is sent in these situations: 246 * - is just un-plugged (previously was plugged) and battery level is 247 * less than or equal to WARNING, or 248 * - is not plugged and battery level falls to WARNING boundary 249 * (becomes <= mLowBatteryWarningLevel). 250 */ 251 return !plugged 252 && mBatteryProps.batteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN 253 && mBatteryProps.batteryLevel <= mLowBatteryWarningLevel 254 && (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel); 255 } 256 257 private void shutdownIfNoPowerLocked() { 258 // shut down gracefully if our battery is critically low and we are not powered. 259 // wait until the system has booted before attempting to display the shutdown dialog. 260 if (mBatteryProps.batteryLevel == 0 && !isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY)) { 261 mHandler.post(new Runnable() { 262 @Override 263 public void run() { 264 if (ActivityManagerNative.isSystemReady()) { 265 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 266 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 267 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 268 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 269 } 270 } 271 }); 272 } 273 } 274 275 private void shutdownIfOverTempLocked() { 276 // shut down gracefully if temperature is too high (> 68.0C by default) 277 // wait until the system has booted before attempting to display the 278 // shutdown dialog. 279 if (mBatteryProps.batteryTemperature > mShutdownBatteryTemperature) { 280 mHandler.post(new Runnable() { 281 @Override 282 public void run() { 283 if (ActivityManagerNative.isSystemReady()) { 284 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 285 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 286 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 287 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 288 } 289 } 290 }); 291 } 292 } 293 294 private void update(BatteryProperties props) { 295 synchronized (mLock) { 296 if (!mUpdatesStopped) { 297 mBatteryProps = props; 298 // Process the new values. 299 processValuesLocked(false); 300 } else { 301 mLastBatteryProps.set(props); 302 } 303 } 304 } 305 306 private void processValuesLocked(boolean force) { 307 boolean logOutlier = false; 308 long dischargeDuration = 0; 309 310 mBatteryLevelCritical = (mBatteryProps.batteryLevel <= mCriticalBatteryLevel); 311 if (mBatteryProps.chargerAcOnline) { 312 mPlugType = BatteryManager.BATTERY_PLUGGED_AC; 313 } else if (mBatteryProps.chargerUsbOnline) { 314 mPlugType = BatteryManager.BATTERY_PLUGGED_USB; 315 } else if (mBatteryProps.chargerWirelessOnline) { 316 mPlugType = BatteryManager.BATTERY_PLUGGED_WIRELESS; 317 } else { 318 mPlugType = BATTERY_PLUGGED_NONE; 319 } 320 321 if (DEBUG) { 322 Slog.d(TAG, "Processing new values: " 323 + "chargerAcOnline=" + mBatteryProps.chargerAcOnline 324 + ", chargerUsbOnline=" + mBatteryProps.chargerUsbOnline 325 + ", chargerWirelessOnline=" + mBatteryProps.chargerWirelessOnline 326 + ", batteryStatus=" + mBatteryProps.batteryStatus 327 + ", batteryHealth=" + mBatteryProps.batteryHealth 328 + ", batteryPresent=" + mBatteryProps.batteryPresent 329 + ", batteryLevel=" + mBatteryProps.batteryLevel 330 + ", batteryTechnology=" + mBatteryProps.batteryTechnology 331 + ", batteryVoltage=" + mBatteryProps.batteryVoltage 332 + ", batteryTemperature=" + mBatteryProps.batteryTemperature 333 + ", mBatteryLevelCritical=" + mBatteryLevelCritical 334 + ", mPlugType=" + mPlugType); 335 } 336 337 // Let the battery stats keep track of the current level. 338 try { 339 mBatteryStats.setBatteryState(mBatteryProps.batteryStatus, mBatteryProps.batteryHealth, 340 mPlugType, mBatteryProps.batteryLevel, mBatteryProps.batteryTemperature, 341 mBatteryProps.batteryVoltage); 342 } catch (RemoteException e) { 343 // Should never happen. 344 } 345 346 shutdownIfNoPowerLocked(); 347 shutdownIfOverTempLocked(); 348 349 if (force || (mBatteryProps.batteryStatus != mLastBatteryStatus || 350 mBatteryProps.batteryHealth != mLastBatteryHealth || 351 mBatteryProps.batteryPresent != mLastBatteryPresent || 352 mBatteryProps.batteryLevel != mLastBatteryLevel || 353 mPlugType != mLastPlugType || 354 mBatteryProps.batteryVoltage != mLastBatteryVoltage || 355 mBatteryProps.batteryTemperature != mLastBatteryTemperature || 356 mInvalidCharger != mLastInvalidCharger)) { 357 358 if (mPlugType != mLastPlugType) { 359 if (mLastPlugType == BATTERY_PLUGGED_NONE) { 360 // discharging -> charging 361 362 // There's no value in this data unless we've discharged at least once and the 363 // battery level has changed; so don't log until it does. 364 if (mDischargeStartTime != 0 && mDischargeStartLevel != mBatteryProps.batteryLevel) { 365 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 366 logOutlier = true; 367 EventLog.writeEvent(EventLogTags.BATTERY_DISCHARGE, dischargeDuration, 368 mDischargeStartLevel, mBatteryProps.batteryLevel); 369 // make sure we see a discharge event before logging again 370 mDischargeStartTime = 0; 371 } 372 } else if (mPlugType == BATTERY_PLUGGED_NONE) { 373 // charging -> discharging or we just powered up 374 mDischargeStartTime = SystemClock.elapsedRealtime(); 375 mDischargeStartLevel = mBatteryProps.batteryLevel; 376 } 377 } 378 if (mBatteryProps.batteryStatus != mLastBatteryStatus || 379 mBatteryProps.batteryHealth != mLastBatteryHealth || 380 mBatteryProps.batteryPresent != mLastBatteryPresent || 381 mPlugType != mLastPlugType) { 382 EventLog.writeEvent(EventLogTags.BATTERY_STATUS, 383 mBatteryProps.batteryStatus, mBatteryProps.batteryHealth, mBatteryProps.batteryPresent ? 1 : 0, 384 mPlugType, mBatteryProps.batteryTechnology); 385 } 386 if (mBatteryProps.batteryLevel != mLastBatteryLevel) { 387 // Don't do this just from voltage or temperature changes, that is 388 // too noisy. 389 EventLog.writeEvent(EventLogTags.BATTERY_LEVEL, 390 mBatteryProps.batteryLevel, mBatteryProps.batteryVoltage, mBatteryProps.batteryTemperature); 391 } 392 if (mBatteryLevelCritical && !mLastBatteryLevelCritical && 393 mPlugType == BATTERY_PLUGGED_NONE) { 394 // We want to make sure we log discharge cycle outliers 395 // if the battery is about to die. 396 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 397 logOutlier = true; 398 } 399 400 if (!mBatteryLevelLow) { 401 // Should we now switch in to low battery mode? 402 if (mPlugType == BATTERY_PLUGGED_NONE 403 && mBatteryProps.batteryLevel <= mLowBatteryWarningLevel) { 404 mBatteryLevelLow = true; 405 } 406 } else { 407 // Should we now switch out of low battery mode? 408 if (mPlugType != BATTERY_PLUGGED_NONE) { 409 mBatteryLevelLow = false; 410 } else if (mBatteryProps.batteryLevel >= mLowBatteryCloseWarningLevel) { 411 mBatteryLevelLow = false; 412 } else if (force && mBatteryProps.batteryLevel >= mLowBatteryWarningLevel) { 413 // If being forced, the previous state doesn't matter, we will just 414 // absolutely check to see if we are now above the warning level. 415 mBatteryLevelLow = false; 416 } 417 } 418 419 sendIntentLocked(); 420 421 // Separate broadcast is sent for power connected / not connected 422 // since the standard intent will not wake any applications and some 423 // applications may want to have smart behavior based on this. 424 if (mPlugType != 0 && mLastPlugType == 0) { 425 mHandler.post(new Runnable() { 426 @Override 427 public void run() { 428 Intent statusIntent = new Intent(Intent.ACTION_POWER_CONNECTED); 429 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 430 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 431 } 432 }); 433 } 434 else if (mPlugType == 0 && mLastPlugType != 0) { 435 mHandler.post(new Runnable() { 436 @Override 437 public void run() { 438 Intent statusIntent = new Intent(Intent.ACTION_POWER_DISCONNECTED); 439 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 440 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 441 } 442 }); 443 } 444 445 if (shouldSendBatteryLowLocked()) { 446 mSentLowBatteryBroadcast = true; 447 mHandler.post(new Runnable() { 448 @Override 449 public void run() { 450 Intent statusIntent = new Intent(Intent.ACTION_BATTERY_LOW); 451 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 452 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 453 } 454 }); 455 } else if (mSentLowBatteryBroadcast && mLastBatteryLevel >= mLowBatteryCloseWarningLevel) { 456 mSentLowBatteryBroadcast = false; 457 mHandler.post(new Runnable() { 458 @Override 459 public void run() { 460 Intent statusIntent = new Intent(Intent.ACTION_BATTERY_OKAY); 461 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 462 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 463 } 464 }); 465 } 466 467 // Update the battery LED 468 mLed.updateLightsLocked(); 469 470 // This needs to be done after sendIntent() so that we get the lastest battery stats. 471 if (logOutlier && dischargeDuration != 0) { 472 logOutlierLocked(dischargeDuration); 473 } 474 475 mLastBatteryStatus = mBatteryProps.batteryStatus; 476 mLastBatteryHealth = mBatteryProps.batteryHealth; 477 mLastBatteryPresent = mBatteryProps.batteryPresent; 478 mLastBatteryLevel = mBatteryProps.batteryLevel; 479 mLastPlugType = mPlugType; 480 mLastBatteryVoltage = mBatteryProps.batteryVoltage; 481 mLastBatteryTemperature = mBatteryProps.batteryTemperature; 482 mLastBatteryLevelCritical = mBatteryLevelCritical; 483 mLastInvalidCharger = mInvalidCharger; 484 } 485 } 486 487 private void sendIntentLocked() { 488 // Pack up the values and broadcast them to everyone 489 final Intent intent = new Intent(Intent.ACTION_BATTERY_CHANGED); 490 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY 491 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 492 493 int icon = getIconLocked(mBatteryProps.batteryLevel); 494 495 intent.putExtra(BatteryManager.EXTRA_STATUS, mBatteryProps.batteryStatus); 496 intent.putExtra(BatteryManager.EXTRA_HEALTH, mBatteryProps.batteryHealth); 497 intent.putExtra(BatteryManager.EXTRA_PRESENT, mBatteryProps.batteryPresent); 498 intent.putExtra(BatteryManager.EXTRA_LEVEL, mBatteryProps.batteryLevel); 499 intent.putExtra(BatteryManager.EXTRA_SCALE, BATTERY_SCALE); 500 intent.putExtra(BatteryManager.EXTRA_ICON_SMALL, icon); 501 intent.putExtra(BatteryManager.EXTRA_PLUGGED, mPlugType); 502 intent.putExtra(BatteryManager.EXTRA_VOLTAGE, mBatteryProps.batteryVoltage); 503 intent.putExtra(BatteryManager.EXTRA_TEMPERATURE, mBatteryProps.batteryTemperature); 504 intent.putExtra(BatteryManager.EXTRA_TECHNOLOGY, mBatteryProps.batteryTechnology); 505 intent.putExtra(BatteryManager.EXTRA_INVALID_CHARGER, mInvalidCharger); 506 507 if (DEBUG) { 508 Slog.d(TAG, "Sending ACTION_BATTERY_CHANGED. level:" + mBatteryProps.batteryLevel + 509 ", scale:" + BATTERY_SCALE + ", status:" + mBatteryProps.batteryStatus + 510 ", health:" + mBatteryProps.batteryHealth + ", present:" + mBatteryProps.batteryPresent + 511 ", voltage: " + mBatteryProps.batteryVoltage + 512 ", temperature: " + mBatteryProps.batteryTemperature + 513 ", technology: " + mBatteryProps.batteryTechnology + 514 ", AC powered:" + mBatteryProps.chargerAcOnline + ", USB powered:" + mBatteryProps.chargerUsbOnline + 515 ", Wireless powered:" + mBatteryProps.chargerWirelessOnline + 516 ", icon:" + icon + ", invalid charger:" + mInvalidCharger); 517 } 518 519 mHandler.post(new Runnable() { 520 @Override 521 public void run() { 522 ActivityManagerNative.broadcastStickyIntent(intent, null, UserHandle.USER_ALL); 523 } 524 }); 525 } 526 527 private void logBatteryStatsLocked() { 528 IBinder batteryInfoService = ServiceManager.getService(BatteryStats.SERVICE_NAME); 529 if (batteryInfoService == null) return; 530 531 DropBoxManager db = (DropBoxManager) mContext.getSystemService(Context.DROPBOX_SERVICE); 532 if (db == null || !db.isTagEnabled("BATTERY_DISCHARGE_INFO")) return; 533 534 File dumpFile = null; 535 FileOutputStream dumpStream = null; 536 try { 537 // dump the service to a file 538 dumpFile = new File(DUMPSYS_DATA_PATH + BatteryStats.SERVICE_NAME + ".dump"); 539 dumpStream = new FileOutputStream(dumpFile); 540 batteryInfoService.dump(dumpStream.getFD(), DUMPSYS_ARGS); 541 FileUtils.sync(dumpStream); 542 543 // add dump file to drop box 544 db.addFile("BATTERY_DISCHARGE_INFO", dumpFile, DropBoxManager.IS_TEXT); 545 } catch (RemoteException e) { 546 Slog.e(TAG, "failed to dump battery service", e); 547 } catch (IOException e) { 548 Slog.e(TAG, "failed to write dumpsys file", e); 549 } finally { 550 // make sure we clean up 551 if (dumpStream != null) { 552 try { 553 dumpStream.close(); 554 } catch (IOException e) { 555 Slog.e(TAG, "failed to close dumpsys output stream"); 556 } 557 } 558 if (dumpFile != null && !dumpFile.delete()) { 559 Slog.e(TAG, "failed to delete temporary dumpsys file: " 560 + dumpFile.getAbsolutePath()); 561 } 562 } 563 } 564 565 private void logOutlierLocked(long duration) { 566 ContentResolver cr = mContext.getContentResolver(); 567 String dischargeThresholdString = Settings.Global.getString(cr, 568 Settings.Global.BATTERY_DISCHARGE_THRESHOLD); 569 String durationThresholdString = Settings.Global.getString(cr, 570 Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD); 571 572 if (dischargeThresholdString != null && durationThresholdString != null) { 573 try { 574 long durationThreshold = Long.parseLong(durationThresholdString); 575 int dischargeThreshold = Integer.parseInt(dischargeThresholdString); 576 if (duration <= durationThreshold && 577 mDischargeStartLevel - mBatteryProps.batteryLevel >= dischargeThreshold) { 578 // If the discharge cycle is bad enough we want to know about it. 579 logBatteryStatsLocked(); 580 } 581 if (DEBUG) Slog.v(TAG, "duration threshold: " + durationThreshold + 582 " discharge threshold: " + dischargeThreshold); 583 if (DEBUG) Slog.v(TAG, "duration: " + duration + " discharge: " + 584 (mDischargeStartLevel - mBatteryProps.batteryLevel)); 585 } catch (NumberFormatException e) { 586 Slog.e(TAG, "Invalid DischargeThresholds GService string: " + 587 durationThresholdString + " or " + dischargeThresholdString); 588 return; 589 } 590 } 591 } 592 593 private int getIconLocked(int level) { 594 if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_CHARGING) { 595 return com.android.internal.R.drawable.stat_sys_battery_charge; 596 } else if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_DISCHARGING) { 597 return com.android.internal.R.drawable.stat_sys_battery; 598 } else if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_NOT_CHARGING 599 || mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_FULL) { 600 if (isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY) 601 && mBatteryProps.batteryLevel >= 100) { 602 return com.android.internal.R.drawable.stat_sys_battery_charge; 603 } else { 604 return com.android.internal.R.drawable.stat_sys_battery; 605 } 606 } else { 607 return com.android.internal.R.drawable.stat_sys_battery_unknown; 608 } 609 } 610 611 private void dumpInternal(PrintWriter pw, String[] args) { 612 synchronized (mLock) { 613 if (args == null || args.length == 0 || "-a".equals(args[0])) { 614 pw.println("Current Battery Service state:"); 615 if (mUpdatesStopped) { 616 pw.println(" (UPDATES STOPPED -- use 'reset' to restart)"); 617 } 618 pw.println(" AC powered: " + mBatteryProps.chargerAcOnline); 619 pw.println(" USB powered: " + mBatteryProps.chargerUsbOnline); 620 pw.println(" Wireless powered: " + mBatteryProps.chargerWirelessOnline); 621 pw.println(" status: " + mBatteryProps.batteryStatus); 622 pw.println(" health: " + mBatteryProps.batteryHealth); 623 pw.println(" present: " + mBatteryProps.batteryPresent); 624 pw.println(" level: " + mBatteryProps.batteryLevel); 625 pw.println(" scale: " + BATTERY_SCALE); 626 pw.println(" voltage: " + mBatteryProps.batteryVoltage); 627 pw.println(" temperature: " + mBatteryProps.batteryTemperature); 628 pw.println(" technology: " + mBatteryProps.batteryTechnology); 629 } else if (args.length == 3 && "set".equals(args[0])) { 630 String key = args[1]; 631 String value = args[2]; 632 try { 633 if (!mUpdatesStopped) { 634 mLastBatteryProps.set(mBatteryProps); 635 } 636 boolean update = true; 637 if ("ac".equals(key)) { 638 mBatteryProps.chargerAcOnline = Integer.parseInt(value) != 0; 639 } else if ("usb".equals(key)) { 640 mBatteryProps.chargerUsbOnline = Integer.parseInt(value) != 0; 641 } else if ("wireless".equals(key)) { 642 mBatteryProps.chargerWirelessOnline = Integer.parseInt(value) != 0; 643 } else if ("status".equals(key)) { 644 mBatteryProps.batteryStatus = Integer.parseInt(value); 645 } else if ("level".equals(key)) { 646 mBatteryProps.batteryLevel = Integer.parseInt(value); 647 } else if ("invalid".equals(key)) { 648 mInvalidCharger = Integer.parseInt(value); 649 } else { 650 pw.println("Unknown set option: " + key); 651 update = false; 652 } 653 if (update) { 654 long ident = Binder.clearCallingIdentity(); 655 try { 656 mUpdatesStopped = true; 657 processValuesLocked(false); 658 } finally { 659 Binder.restoreCallingIdentity(ident); 660 } 661 } 662 } catch (NumberFormatException ex) { 663 pw.println("Bad value: " + value); 664 } 665 } else if (args.length == 1 && "reset".equals(args[0])) { 666 long ident = Binder.clearCallingIdentity(); 667 try { 668 if (mUpdatesStopped) { 669 mUpdatesStopped = false; 670 mBatteryProps.set(mLastBatteryProps); 671 processValuesLocked(false); 672 } 673 } finally { 674 Binder.restoreCallingIdentity(ident); 675 } 676 } else { 677 pw.println("Dump current battery state, or:"); 678 pw.println(" set [ac|usb|wireless|status|level|invalid] <value>"); 679 pw.println(" reset"); 680 } 681 } 682 } 683 684 private final UEventObserver mInvalidChargerObserver = new UEventObserver() { 685 @Override 686 public void onUEvent(UEventObserver.UEvent event) { 687 final int invalidCharger = "1".equals(event.get("SWITCH_STATE")) ? 1 : 0; 688 synchronized (mLock) { 689 if (mInvalidCharger != invalidCharger) { 690 mInvalidCharger = invalidCharger; 691 } 692 } 693 } 694 }; 695 696 private final class Led { 697 private final Light mBatteryLight; 698 699 private final int mBatteryLowARGB; 700 private final int mBatteryMediumARGB; 701 private final int mBatteryFullARGB; 702 private final int mBatteryLedOn; 703 private final int mBatteryLedOff; 704 705 public Led(Context context, LightsManager lights) { 706 mBatteryLight = lights.getLight(LightsManager.LIGHT_ID_BATTERY); 707 708 mBatteryLowARGB = context.getResources().getInteger( 709 com.android.internal.R.integer.config_notificationsBatteryLowARGB); 710 mBatteryMediumARGB = context.getResources().getInteger( 711 com.android.internal.R.integer.config_notificationsBatteryMediumARGB); 712 mBatteryFullARGB = context.getResources().getInteger( 713 com.android.internal.R.integer.config_notificationsBatteryFullARGB); 714 mBatteryLedOn = context.getResources().getInteger( 715 com.android.internal.R.integer.config_notificationsBatteryLedOn); 716 mBatteryLedOff = context.getResources().getInteger( 717 com.android.internal.R.integer.config_notificationsBatteryLedOff); 718 } 719 720 /** 721 * Synchronize on BatteryService. 722 */ 723 public void updateLightsLocked() { 724 final int level = mBatteryProps.batteryLevel; 725 final int status = mBatteryProps.batteryStatus; 726 if (level < mLowBatteryWarningLevel) { 727 if (status == BatteryManager.BATTERY_STATUS_CHARGING) { 728 // Solid red when battery is charging 729 mBatteryLight.setColor(mBatteryLowARGB); 730 } else { 731 // Flash red when battery is low and not charging 732 mBatteryLight.setFlashing(mBatteryLowARGB, Light.LIGHT_FLASH_TIMED, 733 mBatteryLedOn, mBatteryLedOff); 734 } 735 } else if (status == BatteryManager.BATTERY_STATUS_CHARGING 736 || status == BatteryManager.BATTERY_STATUS_FULL) { 737 if (status == BatteryManager.BATTERY_STATUS_FULL || level >= 90) { 738 // Solid green when full or charging and nearly full 739 mBatteryLight.setColor(mBatteryFullARGB); 740 } else { 741 // Solid orange when charging and halfway full 742 mBatteryLight.setColor(mBatteryMediumARGB); 743 } 744 } else { 745 // No lights if not charging and not low 746 mBatteryLight.turnOff(); 747 } 748 } 749 } 750 751 private final class BatteryListener extends IBatteryPropertiesListener.Stub { 752 @Override 753 public void batteryPropertiesChanged(BatteryProperties props) { 754 final long identity = Binder.clearCallingIdentity(); 755 try { 756 BatteryService.this.update(props); 757 } finally { 758 Binder.restoreCallingIdentity(identity); 759 } 760 } 761 } 762 763 private final class BinderService extends Binder { 764 @Override 765 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 766 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 767 != PackageManager.PERMISSION_GRANTED) { 768 769 pw.println("Permission Denial: can't dump Battery service from from pid=" 770 + Binder.getCallingPid() 771 + ", uid=" + Binder.getCallingUid()); 772 return; 773 } 774 775 dumpInternal(pw, args); 776 } 777 } 778 779 private final class LocalService extends BatteryManagerInternal { 780 @Override 781 public boolean isPowered(int plugTypeSet) { 782 synchronized (mLock) { 783 return isPoweredLocked(plugTypeSet); 784 } 785 } 786 787 @Override 788 public int getPlugType() { 789 synchronized (mLock) { 790 return mPlugType; 791 } 792 } 793 794 @Override 795 public int getBatteryLevel() { 796 synchronized (mLock) { 797 return mBatteryProps.batteryLevel; 798 } 799 } 800 801 @Override 802 public boolean getBatteryLevelLow() { 803 synchronized (mLock) { 804 return mBatteryLevelLow; 805 } 806 } 807 808 @Override 809 public int getInvalidCharger() { 810 synchronized (mLock) { 811 return mInvalidCharger; 812 } 813 } 814 } 815 } 816
