BatteryService.java revision a1f1a3c573acd91024fda0ceb3b921c73b186963
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 17package com.android.server; 18 19import android.os.BatteryStats; 20import com.android.internal.app.IBatteryStats; 21import com.android.server.am.BatteryStatsService; 22import com.android.server.lights.Light; 23import com.android.server.lights.LightsManager; 24 25import android.app.ActivityManagerNative; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.pm.PackageManager; 30import android.os.BatteryManager; 31import android.os.BatteryProperties; 32import android.os.Binder; 33import android.os.FileUtils; 34import android.os.Handler; 35import android.os.IBatteryPropertiesListener; 36import android.os.IBatteryPropertiesRegistrar; 37import android.os.IBinder; 38import android.os.DropBoxManager; 39import android.os.RemoteException; 40import android.os.ServiceManager; 41import android.os.SystemClock; 42import android.os.UEventObserver; 43import android.os.UserHandle; 44import android.provider.Settings; 45import android.util.EventLog; 46import android.util.Slog; 47 48import java.io.File; 49import java.io.FileDescriptor; 50import java.io.FileOutputStream; 51import java.io.IOException; 52import java.io.PrintWriter; 53 54 55/** 56 * <p>BatteryService monitors the charging status, and charge level of the device 57 * battery. When these values change this service broadcasts the new values 58 * to all {@link android.content.BroadcastReceiver IntentReceivers} that are 59 * watching the {@link android.content.Intent#ACTION_BATTERY_CHANGED 60 * BATTERY_CHANGED} action.</p> 61 * <p>The new values are stored in the Intent data and can be retrieved by 62 * calling {@link android.content.Intent#getExtra Intent.getExtra} with the 63 * following keys:</p> 64 * <p>"scale" - int, the maximum value for the charge level</p> 65 * <p>"level" - int, charge level, from 0 through "scale" inclusive</p> 66 * <p>"status" - String, the current charging status.<br /> 67 * <p>"health" - String, the current battery health.<br /> 68 * <p>"present" - boolean, true if the battery is present<br /> 69 * <p>"icon-small" - int, suggested small icon to use for this state</p> 70 * <p>"plugged" - int, 0 if the device is not plugged in; 1 if plugged 71 * into an AC power adapter; 2 if plugged in via USB.</p> 72 * <p>"voltage" - int, current battery voltage in millivolts</p> 73 * <p>"temperature" - int, current battery temperature in tenths of 74 * a degree Centigrade</p> 75 * <p>"technology" - String, the type of battery installed, e.g. "Li-ion"</p> 76 * 77 * <p> 78 * The battery service may be called by the power manager while holding its locks so 79 * we take care to post all outcalls into the activity manager to a handler. 80 * 81 * FIXME: Ideally the power manager would perform all of its calls into the battery 82 * service asynchronously itself. 83 * </p> 84 */ 85public final class BatteryService extends Binder { 86 private static final String TAG = BatteryService.class.getSimpleName(); 87 88 private static final boolean DEBUG = false; 89 90 private static final int BATTERY_SCALE = 100; // battery capacity is a percentage 91 92 // Used locally for determining when to make a last ditch effort to log 93 // discharge stats before the device dies. 94 private int mCriticalBatteryLevel; 95 96 private static final int DUMP_MAX_LENGTH = 24 * 1024; 97 private static final String[] DUMPSYS_ARGS = new String[] { "--checkin", "--unplugged" }; 98 99 private static final String DUMPSYS_DATA_PATH = "/data/system/"; 100 101 // This should probably be exposed in the API, though it's not critical 102 private static final int BATTERY_PLUGGED_NONE = 0; 103 104 private final Context mContext; 105 private final IBatteryStats mBatteryStats; 106 private final Handler mHandler; 107 108 private final Object mLock = new Object(); 109 110 private BatteryProperties mBatteryProps; 111 private final BatteryProperties mLastBatteryProps = new BatteryProperties(); 112 private boolean mBatteryLevelCritical; 113 private int mLastBatteryStatus; 114 private int mLastBatteryHealth; 115 private boolean mLastBatteryPresent; 116 private int mLastBatteryLevel; 117 private int mLastBatteryVoltage; 118 private int mLastBatteryTemperature; 119 private boolean mLastBatteryLevelCritical; 120 121 private int mInvalidCharger; 122 private int mLastInvalidCharger; 123 124 private int mLowBatteryWarningLevel; 125 private int mLowBatteryCloseWarningLevel; 126 private int mShutdownBatteryTemperature; 127 128 private int mPlugType; 129 private int mLastPlugType = -1; // Extra state so we can detect first run 130 131 private long mDischargeStartTime; 132 private int mDischargeStartLevel; 133 134 private boolean mUpdatesStopped; 135 136 private Led mLed; 137 138 private boolean mSentLowBatteryBroadcast = false; 139 140 public BatteryService(Context context, LightsManager lightsManager) { 141 mContext = context; 142 mHandler = new Handler(true /*async*/); 143 mLed = new Led(context, lightsManager); 144 mBatteryStats = BatteryStatsService.getService(); 145 146 mCriticalBatteryLevel = mContext.getResources().getInteger( 147 com.android.internal.R.integer.config_criticalBatteryWarningLevel); 148 mLowBatteryWarningLevel = mContext.getResources().getInteger( 149 com.android.internal.R.integer.config_lowBatteryWarningLevel); 150 mLowBatteryCloseWarningLevel = mContext.getResources().getInteger( 151 com.android.internal.R.integer.config_lowBatteryCloseWarningLevel); 152 mShutdownBatteryTemperature = mContext.getResources().getInteger( 153 com.android.internal.R.integer.config_shutdownBatteryTemperature); 154 155 // watch for invalid charger messages if the invalid_charger switch exists 156 if (new File("/sys/devices/virtual/switch/invalid_charger/state").exists()) { 157 mInvalidChargerObserver.startObserving( 158 "DEVPATH=/devices/virtual/switch/invalid_charger"); 159 } 160 161 IBinder b = ServiceManager.getService("batteryproperties"); 162 final IBatteryPropertiesRegistrar batteryPropertiesRegistrar = 163 IBatteryPropertiesRegistrar.Stub.asInterface(b); 164 try { 165 batteryPropertiesRegistrar.registerListener(new BatteryListener()); 166 } catch (RemoteException e) { 167 // Should never happen. 168 } 169 } 170 171 void systemReady() { 172 // check our power situation now that it is safe to display the shutdown dialog. 173 synchronized (mLock) { 174 shutdownIfNoPowerLocked(); 175 shutdownIfOverTempLocked(); 176 } 177 } 178 179 /** 180 * Returns true if the device is plugged into any of the specified plug types. 181 */ 182 public boolean isPowered(int plugTypeSet) { 183 synchronized (mLock) { 184 return isPoweredLocked(plugTypeSet); 185 } 186 } 187 188 private boolean isPoweredLocked(int plugTypeSet) { 189 // assume we are powered if battery state is unknown so 190 // the "stay on while plugged in" option will work. 191 if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_UNKNOWN) { 192 return true; 193 } 194 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_AC) != 0 && mBatteryProps.chargerAcOnline) { 195 return true; 196 } 197 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_USB) != 0 && mBatteryProps.chargerUsbOnline) { 198 return true; 199 } 200 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_WIRELESS) != 0 && mBatteryProps.chargerWirelessOnline) { 201 return true; 202 } 203 return false; 204 } 205 206 /** 207 * Returns the current plug type. 208 */ 209 public int getPlugType() { 210 synchronized (mLock) { 211 return mPlugType; 212 } 213 } 214 215 /** 216 * Returns battery level as a percentage. 217 */ 218 public int getBatteryLevel() { 219 synchronized (mLock) { 220 return mBatteryProps.batteryLevel; 221 } 222 } 223 224 /** 225 * Returns true if battery level is below the first warning threshold. 226 */ 227 public boolean isBatteryLow() { 228 synchronized (mLock) { 229 return mBatteryProps.batteryPresent && mBatteryProps.batteryLevel <= mLowBatteryWarningLevel; 230 } 231 } 232 233 /** 234 * Returns a non-zero value if an unsupported charger is attached. 235 */ 236 public int getInvalidCharger() { 237 synchronized (mLock) { 238 return mInvalidCharger; 239 } 240 } 241 242 private void shutdownIfNoPowerLocked() { 243 // shut down gracefully if our battery is critically low and we are not powered. 244 // wait until the system has booted before attempting to display the shutdown dialog. 245 if (mBatteryProps.batteryLevel == 0 && !isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY)) { 246 mHandler.post(new Runnable() { 247 @Override 248 public void run() { 249 if (ActivityManagerNative.isSystemReady()) { 250 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 251 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 252 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 253 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 254 } 255 } 256 }); 257 } 258 } 259 260 private void shutdownIfOverTempLocked() { 261 // shut down gracefully if temperature is too high (> 68.0C by default) 262 // wait until the system has booted before attempting to display the 263 // shutdown dialog. 264 if (mBatteryProps.batteryTemperature > mShutdownBatteryTemperature) { 265 mHandler.post(new Runnable() { 266 @Override 267 public void run() { 268 if (ActivityManagerNative.isSystemReady()) { 269 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 270 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 271 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 272 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 273 } 274 } 275 }); 276 } 277 } 278 279 private void update(BatteryProperties props) { 280 synchronized (mLock) { 281 if (!mUpdatesStopped) { 282 mBatteryProps = props; 283 // Process the new values. 284 processValuesLocked(); 285 } else { 286 mLastBatteryProps.set(props); 287 } 288 } 289 } 290 291 private void processValuesLocked() { 292 boolean logOutlier = false; 293 long dischargeDuration = 0; 294 295 mBatteryLevelCritical = (mBatteryProps.batteryLevel <= mCriticalBatteryLevel); 296 if (mBatteryProps.chargerAcOnline) { 297 mPlugType = BatteryManager.BATTERY_PLUGGED_AC; 298 } else if (mBatteryProps.chargerUsbOnline) { 299 mPlugType = BatteryManager.BATTERY_PLUGGED_USB; 300 } else if (mBatteryProps.chargerWirelessOnline) { 301 mPlugType = BatteryManager.BATTERY_PLUGGED_WIRELESS; 302 } else { 303 mPlugType = BATTERY_PLUGGED_NONE; 304 } 305 306 if (DEBUG) { 307 Slog.d(TAG, "Processing new values: " 308 + "chargerAcOnline=" + mBatteryProps.chargerAcOnline 309 + ", chargerUsbOnline=" + mBatteryProps.chargerUsbOnline 310 + ", chargerWirelessOnline=" + mBatteryProps.chargerWirelessOnline 311 + ", batteryStatus=" + mBatteryProps.batteryStatus 312 + ", batteryHealth=" + mBatteryProps.batteryHealth 313 + ", batteryPresent=" + mBatteryProps.batteryPresent 314 + ", batteryLevel=" + mBatteryProps.batteryLevel 315 + ", batteryTechnology=" + mBatteryProps.batteryTechnology 316 + ", batteryVoltage=" + mBatteryProps.batteryVoltage 317 + ", batteryTemperature=" + mBatteryProps.batteryTemperature 318 + ", mBatteryLevelCritical=" + mBatteryLevelCritical 319 + ", mPlugType=" + mPlugType); 320 } 321 322 // Let the battery stats keep track of the current level. 323 try { 324 mBatteryStats.setBatteryState(mBatteryProps.batteryStatus, mBatteryProps.batteryHealth, 325 mPlugType, mBatteryProps.batteryLevel, mBatteryProps.batteryTemperature, 326 mBatteryProps.batteryVoltage); 327 } catch (RemoteException e) { 328 // Should never happen. 329 } 330 331 shutdownIfNoPowerLocked(); 332 shutdownIfOverTempLocked(); 333 334 if (mBatteryProps.batteryStatus != mLastBatteryStatus || 335 mBatteryProps.batteryHealth != mLastBatteryHealth || 336 mBatteryProps.batteryPresent != mLastBatteryPresent || 337 mBatteryProps.batteryLevel != mLastBatteryLevel || 338 mPlugType != mLastPlugType || 339 mBatteryProps.batteryVoltage != mLastBatteryVoltage || 340 mBatteryProps.batteryTemperature != mLastBatteryTemperature || 341 mInvalidCharger != mLastInvalidCharger) { 342 343 if (mPlugType != mLastPlugType) { 344 if (mLastPlugType == BATTERY_PLUGGED_NONE) { 345 // discharging -> charging 346 347 // There's no value in this data unless we've discharged at least once and the 348 // battery level has changed; so don't log until it does. 349 if (mDischargeStartTime != 0 && mDischargeStartLevel != mBatteryProps.batteryLevel) { 350 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 351 logOutlier = true; 352 EventLog.writeEvent(EventLogTags.BATTERY_DISCHARGE, dischargeDuration, 353 mDischargeStartLevel, mBatteryProps.batteryLevel); 354 // make sure we see a discharge event before logging again 355 mDischargeStartTime = 0; 356 } 357 } else if (mPlugType == BATTERY_PLUGGED_NONE) { 358 // charging -> discharging or we just powered up 359 mDischargeStartTime = SystemClock.elapsedRealtime(); 360 mDischargeStartLevel = mBatteryProps.batteryLevel; 361 } 362 } 363 if (mBatteryProps.batteryStatus != mLastBatteryStatus || 364 mBatteryProps.batteryHealth != mLastBatteryHealth || 365 mBatteryProps.batteryPresent != mLastBatteryPresent || 366 mPlugType != mLastPlugType) { 367 EventLog.writeEvent(EventLogTags.BATTERY_STATUS, 368 mBatteryProps.batteryStatus, mBatteryProps.batteryHealth, mBatteryProps.batteryPresent ? 1 : 0, 369 mPlugType, mBatteryProps.batteryTechnology); 370 } 371 if (mBatteryProps.batteryLevel != mLastBatteryLevel) { 372 // Don't do this just from voltage or temperature changes, that is 373 // too noisy. 374 EventLog.writeEvent(EventLogTags.BATTERY_LEVEL, 375 mBatteryProps.batteryLevel, mBatteryProps.batteryVoltage, mBatteryProps.batteryTemperature); 376 } 377 if (mBatteryLevelCritical && !mLastBatteryLevelCritical && 378 mPlugType == BATTERY_PLUGGED_NONE) { 379 // We want to make sure we log discharge cycle outliers 380 // if the battery is about to die. 381 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 382 logOutlier = true; 383 } 384 385 final boolean plugged = mPlugType != BATTERY_PLUGGED_NONE; 386 final boolean oldPlugged = mLastPlugType != BATTERY_PLUGGED_NONE; 387 388 /* The ACTION_BATTERY_LOW broadcast is sent in these situations: 389 * - is just un-plugged (previously was plugged) and battery level is 390 * less than or equal to WARNING, or 391 * - is not plugged and battery level falls to WARNING boundary 392 * (becomes <= mLowBatteryWarningLevel). 393 */ 394 final boolean sendBatteryLow = !plugged 395 && mBatteryProps.batteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN 396 && mBatteryProps.batteryLevel <= mLowBatteryWarningLevel 397 && (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel); 398 399 sendIntentLocked(); 400 401 // Separate broadcast is sent for power connected / not connected 402 // since the standard intent will not wake any applications and some 403 // applications may want to have smart behavior based on this. 404 if (mPlugType != 0 && mLastPlugType == 0) { 405 mHandler.post(new Runnable() { 406 @Override 407 public void run() { 408 Intent statusIntent = new Intent(Intent.ACTION_POWER_CONNECTED); 409 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 410 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 411 } 412 }); 413 } 414 else if (mPlugType == 0 && mLastPlugType != 0) { 415 mHandler.post(new Runnable() { 416 @Override 417 public void run() { 418 Intent statusIntent = new Intent(Intent.ACTION_POWER_DISCONNECTED); 419 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 420 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 421 } 422 }); 423 } 424 425 if (sendBatteryLow) { 426 mSentLowBatteryBroadcast = true; 427 mHandler.post(new Runnable() { 428 @Override 429 public void run() { 430 Intent statusIntent = new Intent(Intent.ACTION_BATTERY_LOW); 431 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 432 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 433 } 434 }); 435 } else if (mSentLowBatteryBroadcast && mLastBatteryLevel >= mLowBatteryCloseWarningLevel) { 436 mSentLowBatteryBroadcast = false; 437 mHandler.post(new Runnable() { 438 @Override 439 public void run() { 440 Intent statusIntent = new Intent(Intent.ACTION_BATTERY_OKAY); 441 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 442 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 443 } 444 }); 445 } 446 447 // Update the battery LED 448 mLed.updateLightsLocked(); 449 450 // This needs to be done after sendIntent() so that we get the lastest battery stats. 451 if (logOutlier && dischargeDuration != 0) { 452 logOutlierLocked(dischargeDuration); 453 } 454 455 mLastBatteryStatus = mBatteryProps.batteryStatus; 456 mLastBatteryHealth = mBatteryProps.batteryHealth; 457 mLastBatteryPresent = mBatteryProps.batteryPresent; 458 mLastBatteryLevel = mBatteryProps.batteryLevel; 459 mLastPlugType = mPlugType; 460 mLastBatteryVoltage = mBatteryProps.batteryVoltage; 461 mLastBatteryTemperature = mBatteryProps.batteryTemperature; 462 mLastBatteryLevelCritical = mBatteryLevelCritical; 463 mLastInvalidCharger = mInvalidCharger; 464 } 465 } 466 467 private void sendIntentLocked() { 468 // Pack up the values and broadcast them to everyone 469 final Intent intent = new Intent(Intent.ACTION_BATTERY_CHANGED); 470 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY 471 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 472 473 int icon = getIconLocked(mBatteryProps.batteryLevel); 474 475 intent.putExtra(BatteryManager.EXTRA_STATUS, mBatteryProps.batteryStatus); 476 intent.putExtra(BatteryManager.EXTRA_HEALTH, mBatteryProps.batteryHealth); 477 intent.putExtra(BatteryManager.EXTRA_PRESENT, mBatteryProps.batteryPresent); 478 intent.putExtra(BatteryManager.EXTRA_LEVEL, mBatteryProps.batteryLevel); 479 intent.putExtra(BatteryManager.EXTRA_SCALE, BATTERY_SCALE); 480 intent.putExtra(BatteryManager.EXTRA_ICON_SMALL, icon); 481 intent.putExtra(BatteryManager.EXTRA_PLUGGED, mPlugType); 482 intent.putExtra(BatteryManager.EXTRA_VOLTAGE, mBatteryProps.batteryVoltage); 483 intent.putExtra(BatteryManager.EXTRA_TEMPERATURE, mBatteryProps.batteryTemperature); 484 intent.putExtra(BatteryManager.EXTRA_TECHNOLOGY, mBatteryProps.batteryTechnology); 485 intent.putExtra(BatteryManager.EXTRA_INVALID_CHARGER, mInvalidCharger); 486 487 if (DEBUG) { 488 Slog.d(TAG, "Sending ACTION_BATTERY_CHANGED. level:" + mBatteryProps.batteryLevel + 489 ", scale:" + BATTERY_SCALE + ", status:" + mBatteryProps.batteryStatus + 490 ", health:" + mBatteryProps.batteryHealth + ", present:" + mBatteryProps.batteryPresent + 491 ", voltage: " + mBatteryProps.batteryVoltage + 492 ", temperature: " + mBatteryProps.batteryTemperature + 493 ", technology: " + mBatteryProps.batteryTechnology + 494 ", AC powered:" + mBatteryProps.chargerAcOnline + ", USB powered:" + mBatteryProps.chargerUsbOnline + 495 ", Wireless powered:" + mBatteryProps.chargerWirelessOnline + 496 ", icon:" + icon + ", invalid charger:" + mInvalidCharger); 497 } 498 499 mHandler.post(new Runnable() { 500 @Override 501 public void run() { 502 ActivityManagerNative.broadcastStickyIntent(intent, null, UserHandle.USER_ALL); 503 } 504 }); 505 } 506 507 private void logBatteryStatsLocked() { 508 IBinder batteryInfoService = ServiceManager.getService(BatteryStats.SERVICE_NAME); 509 if (batteryInfoService == null) return; 510 511 DropBoxManager db = (DropBoxManager) mContext.getSystemService(Context.DROPBOX_SERVICE); 512 if (db == null || !db.isTagEnabled("BATTERY_DISCHARGE_INFO")) return; 513 514 File dumpFile = null; 515 FileOutputStream dumpStream = null; 516 try { 517 // dump the service to a file 518 dumpFile = new File(DUMPSYS_DATA_PATH + BatteryStats.SERVICE_NAME + ".dump"); 519 dumpStream = new FileOutputStream(dumpFile); 520 batteryInfoService.dump(dumpStream.getFD(), DUMPSYS_ARGS); 521 FileUtils.sync(dumpStream); 522 523 // add dump file to drop box 524 db.addFile("BATTERY_DISCHARGE_INFO", dumpFile, DropBoxManager.IS_TEXT); 525 } catch (RemoteException e) { 526 Slog.e(TAG, "failed to dump battery service", e); 527 } catch (IOException e) { 528 Slog.e(TAG, "failed to write dumpsys file", e); 529 } finally { 530 // make sure we clean up 531 if (dumpStream != null) { 532 try { 533 dumpStream.close(); 534 } catch (IOException e) { 535 Slog.e(TAG, "failed to close dumpsys output stream"); 536 } 537 } 538 if (dumpFile != null && !dumpFile.delete()) { 539 Slog.e(TAG, "failed to delete temporary dumpsys file: " 540 + dumpFile.getAbsolutePath()); 541 } 542 } 543 } 544 545 private void logOutlierLocked(long duration) { 546 ContentResolver cr = mContext.getContentResolver(); 547 String dischargeThresholdString = Settings.Global.getString(cr, 548 Settings.Global.BATTERY_DISCHARGE_THRESHOLD); 549 String durationThresholdString = Settings.Global.getString(cr, 550 Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD); 551 552 if (dischargeThresholdString != null && durationThresholdString != null) { 553 try { 554 long durationThreshold = Long.parseLong(durationThresholdString); 555 int dischargeThreshold = Integer.parseInt(dischargeThresholdString); 556 if (duration <= durationThreshold && 557 mDischargeStartLevel - mBatteryProps.batteryLevel >= dischargeThreshold) { 558 // If the discharge cycle is bad enough we want to know about it. 559 logBatteryStatsLocked(); 560 } 561 if (DEBUG) Slog.v(TAG, "duration threshold: " + durationThreshold + 562 " discharge threshold: " + dischargeThreshold); 563 if (DEBUG) Slog.v(TAG, "duration: " + duration + " discharge: " + 564 (mDischargeStartLevel - mBatteryProps.batteryLevel)); 565 } catch (NumberFormatException e) { 566 Slog.e(TAG, "Invalid DischargeThresholds GService string: " + 567 durationThresholdString + " or " + dischargeThresholdString); 568 return; 569 } 570 } 571 } 572 573 private int getIconLocked(int level) { 574 if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_CHARGING) { 575 return com.android.internal.R.drawable.stat_sys_battery_charge; 576 } else if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_DISCHARGING) { 577 return com.android.internal.R.drawable.stat_sys_battery; 578 } else if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_NOT_CHARGING 579 || mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_FULL) { 580 if (isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY) 581 && mBatteryProps.batteryLevel >= 100) { 582 return com.android.internal.R.drawable.stat_sys_battery_charge; 583 } else { 584 return com.android.internal.R.drawable.stat_sys_battery; 585 } 586 } else { 587 return com.android.internal.R.drawable.stat_sys_battery_unknown; 588 } 589 } 590 591 @Override 592 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 593 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 594 != PackageManager.PERMISSION_GRANTED) { 595 596 pw.println("Permission Denial: can't dump Battery service from from pid=" 597 + Binder.getCallingPid() 598 + ", uid=" + Binder.getCallingUid()); 599 return; 600 } 601 602 synchronized (mLock) { 603 if (args == null || args.length == 0 || "-a".equals(args[0])) { 604 pw.println("Current Battery Service state:"); 605 if (mUpdatesStopped) { 606 pw.println(" (UPDATES STOPPED -- use 'reset' to restart)"); 607 } 608 pw.println(" AC powered: " + mBatteryProps.chargerAcOnline); 609 pw.println(" USB powered: " + mBatteryProps.chargerUsbOnline); 610 pw.println(" Wireless powered: " + mBatteryProps.chargerWirelessOnline); 611 pw.println(" status: " + mBatteryProps.batteryStatus); 612 pw.println(" health: " + mBatteryProps.batteryHealth); 613 pw.println(" present: " + mBatteryProps.batteryPresent); 614 pw.println(" level: " + mBatteryProps.batteryLevel); 615 pw.println(" scale: " + BATTERY_SCALE); 616 pw.println(" voltage: " + mBatteryProps.batteryVoltage); 617 pw.println(" temperature: " + mBatteryProps.batteryTemperature); 618 pw.println(" technology: " + mBatteryProps.batteryTechnology); 619 } else if (args.length == 3 && "set".equals(args[0])) { 620 String key = args[1]; 621 String value = args[2]; 622 try { 623 if (!mUpdatesStopped) { 624 mLastBatteryProps.set(mBatteryProps); 625 } 626 boolean update = true; 627 if ("ac".equals(key)) { 628 mBatteryProps.chargerAcOnline = Integer.parseInt(value) != 0; 629 } else if ("usb".equals(key)) { 630 mBatteryProps.chargerUsbOnline = Integer.parseInt(value) != 0; 631 } else if ("wireless".equals(key)) { 632 mBatteryProps.chargerWirelessOnline = Integer.parseInt(value) != 0; 633 } else if ("status".equals(key)) { 634 mBatteryProps.batteryStatus = Integer.parseInt(value); 635 } else if ("level".equals(key)) { 636 mBatteryProps.batteryLevel = Integer.parseInt(value); 637 } else if ("invalid".equals(key)) { 638 mInvalidCharger = Integer.parseInt(value); 639 } else { 640 pw.println("Unknown set option: " + key); 641 update = false; 642 } 643 if (update) { 644 long ident = Binder.clearCallingIdentity(); 645 try { 646 mUpdatesStopped = true; 647 processValuesLocked(); 648 } finally { 649 Binder.restoreCallingIdentity(ident); 650 } 651 } 652 } catch (NumberFormatException ex) { 653 pw.println("Bad value: " + value); 654 } 655 } else if (args.length == 1 && "reset".equals(args[0])) { 656 long ident = Binder.clearCallingIdentity(); 657 try { 658 if (mUpdatesStopped) { 659 mBatteryProps.set(mLastBatteryProps); 660 processValuesLocked(); 661 } 662 } finally { 663 Binder.restoreCallingIdentity(ident); 664 } 665 } else { 666 pw.println("Dump current battery state, or:"); 667 pw.println(" set [ac|usb|wireless|status|level|invalid] <value>"); 668 pw.println(" reset"); 669 } 670 } 671 } 672 673 private final UEventObserver mInvalidChargerObserver = new UEventObserver() { 674 @Override 675 public void onUEvent(UEventObserver.UEvent event) { 676 final int invalidCharger = "1".equals(event.get("SWITCH_STATE")) ? 1 : 0; 677 synchronized (mLock) { 678 if (mInvalidCharger != invalidCharger) { 679 mInvalidCharger = invalidCharger; 680 } 681 } 682 } 683 }; 684 685 private final class Led { 686 private final Light mBatteryLight; 687 688 private final int mBatteryLowARGB; 689 private final int mBatteryMediumARGB; 690 private final int mBatteryFullARGB; 691 private final int mBatteryLedOn; 692 private final int mBatteryLedOff; 693 694 public Led(Context context, LightsManager lights) { 695 mBatteryLight = lights.getLight(LightsManager.LIGHT_ID_BATTERY); 696 697 mBatteryLowARGB = context.getResources().getInteger( 698 com.android.internal.R.integer.config_notificationsBatteryLowARGB); 699 mBatteryMediumARGB = context.getResources().getInteger( 700 com.android.internal.R.integer.config_notificationsBatteryMediumARGB); 701 mBatteryFullARGB = context.getResources().getInteger( 702 com.android.internal.R.integer.config_notificationsBatteryFullARGB); 703 mBatteryLedOn = context.getResources().getInteger( 704 com.android.internal.R.integer.config_notificationsBatteryLedOn); 705 mBatteryLedOff = context.getResources().getInteger( 706 com.android.internal.R.integer.config_notificationsBatteryLedOff); 707 } 708 709 /** 710 * Synchronize on BatteryService. 711 */ 712 public void updateLightsLocked() { 713 final int level = mBatteryProps.batteryLevel; 714 final int status = mBatteryProps.batteryStatus; 715 if (level < mLowBatteryWarningLevel) { 716 if (status == BatteryManager.BATTERY_STATUS_CHARGING) { 717 // Solid red when battery is charging 718 mBatteryLight.setColor(mBatteryLowARGB); 719 } else { 720 // Flash red when battery is low and not charging 721 mBatteryLight.setFlashing(mBatteryLowARGB, Light.LIGHT_FLASH_TIMED, 722 mBatteryLedOn, mBatteryLedOff); 723 } 724 } else if (status == BatteryManager.BATTERY_STATUS_CHARGING 725 || status == BatteryManager.BATTERY_STATUS_FULL) { 726 if (status == BatteryManager.BATTERY_STATUS_FULL || level >= 90) { 727 // Solid green when full or charging and nearly full 728 mBatteryLight.setColor(mBatteryFullARGB); 729 } else { 730 // Solid orange when charging and halfway full 731 mBatteryLight.setColor(mBatteryMediumARGB); 732 } 733 } else { 734 // No lights if not charging and not low 735 mBatteryLight.turnOff(); 736 } 737 } 738 } 739 740 private final class BatteryListener extends IBatteryPropertiesListener.Stub { 741 @Override 742 public void batteryPropertiesChanged(BatteryProperties props) { 743 final long identity = Binder.clearCallingIdentity(); 744 try { 745 BatteryService.this.update(props); 746 } finally { 747 Binder.restoreCallingIdentity(identity); 748 } 749 } 750 } 751} 752