BatteryService.java revision 9158825f9c41869689d6b1786d7c7aa8bdd524ce
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 boolean mBatteryLevelCritical; 112 private int mLastBatteryStatus; 113 private int mLastBatteryHealth; 114 private boolean mLastBatteryPresent; 115 private int mLastBatteryLevel; 116 private int mLastBatteryVoltage; 117 private int mLastBatteryTemperature; 118 private boolean mLastBatteryLevelCritical; 119 120 private int mInvalidCharger; 121 private int mLastInvalidCharger; 122 123 private int mLowBatteryWarningLevel; 124 private int mLowBatteryCloseWarningLevel; 125 private int mShutdownBatteryTemperature; 126 127 private int mPlugType; 128 private int mLastPlugType = -1; // Extra state so we can detect first run 129 130 private long mDischargeStartTime; 131 private int mDischargeStartLevel; 132 133 private boolean mUpdatesStopped; 134 135 private Led mLed; 136 137 private boolean mSentLowBatteryBroadcast = false; 138 139 public BatteryService(Context context, LightsManager lightsManager) { 140 mContext = context; 141 mHandler = new Handler(true /*async*/); 142 mLed = new Led(context, lightsManager); 143 mBatteryStats = BatteryStatsService.getService(); 144 145 mCriticalBatteryLevel = mContext.getResources().getInteger( 146 com.android.internal.R.integer.config_criticalBatteryWarningLevel); 147 mLowBatteryWarningLevel = mContext.getResources().getInteger( 148 com.android.internal.R.integer.config_lowBatteryWarningLevel); 149 mLowBatteryCloseWarningLevel = mContext.getResources().getInteger( 150 com.android.internal.R.integer.config_lowBatteryCloseWarningLevel); 151 mShutdownBatteryTemperature = mContext.getResources().getInteger( 152 com.android.internal.R.integer.config_shutdownBatteryTemperature); 153 154 // watch for invalid charger messages if the invalid_charger switch exists 155 if (new File("/sys/devices/virtual/switch/invalid_charger/state").exists()) { 156 mInvalidChargerObserver.startObserving( 157 "DEVPATH=/devices/virtual/switch/invalid_charger"); 158 } 159 160 IBinder b = ServiceManager.getService("batterypropreg"); 161 final IBatteryPropertiesRegistrar batteryPropertiesRegistrar = 162 IBatteryPropertiesRegistrar.Stub.asInterface(b); 163 try { 164 batteryPropertiesRegistrar.registerListener(new BatteryListener()); 165 } catch (RemoteException e) { 166 // Should never happen. 167 } 168 } 169 170 void systemReady() { 171 // check our power situation now that it is safe to display the shutdown dialog. 172 synchronized (mLock) { 173 shutdownIfNoPowerLocked(); 174 shutdownIfOverTempLocked(); 175 } 176 } 177 178 /** 179 * Returns true if the device is plugged into any of the specified plug types. 180 */ 181 public boolean isPowered(int plugTypeSet) { 182 synchronized (mLock) { 183 return isPoweredLocked(plugTypeSet); 184 } 185 } 186 187 private boolean isPoweredLocked(int plugTypeSet) { 188 // assume we are powered if battery state is unknown so 189 // the "stay on while plugged in" option will work. 190 if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_UNKNOWN) { 191 return true; 192 } 193 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_AC) != 0 && mBatteryProps.chargerAcOnline) { 194 return true; 195 } 196 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_USB) != 0 && mBatteryProps.chargerUsbOnline) { 197 return true; 198 } 199 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_WIRELESS) != 0 && mBatteryProps.chargerWirelessOnline) { 200 return true; 201 } 202 return false; 203 } 204 205 /** 206 * Returns the current plug type. 207 */ 208 public int getPlugType() { 209 synchronized (mLock) { 210 return mPlugType; 211 } 212 } 213 214 /** 215 * Returns battery level as a percentage. 216 */ 217 public int getBatteryLevel() { 218 synchronized (mLock) { 219 return mBatteryProps.batteryLevel; 220 } 221 } 222 223 /** 224 * Returns true if battery level is below the first warning threshold. 225 */ 226 public boolean isBatteryLow() { 227 synchronized (mLock) { 228 return mBatteryProps.batteryPresent && mBatteryProps.batteryLevel <= mLowBatteryWarningLevel; 229 } 230 } 231 232 /** 233 * Returns a non-zero value if an unsupported charger is attached. 234 */ 235 public int getInvalidCharger() { 236 synchronized (mLock) { 237 return mInvalidCharger; 238 } 239 } 240 241 private void shutdownIfNoPowerLocked() { 242 // shut down gracefully if our battery is critically low and we are not powered. 243 // wait until the system has booted before attempting to display the shutdown dialog. 244 if (mBatteryProps.batteryLevel == 0 && !isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY)) { 245 mHandler.post(new Runnable() { 246 @Override 247 public void run() { 248 if (ActivityManagerNative.isSystemReady()) { 249 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 250 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 251 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 252 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 253 } 254 } 255 }); 256 } 257 } 258 259 private void shutdownIfOverTempLocked() { 260 // shut down gracefully if temperature is too high (> 68.0C by default) 261 // wait until the system has booted before attempting to display the 262 // shutdown dialog. 263 if (mBatteryProps.batteryTemperature > mShutdownBatteryTemperature) { 264 mHandler.post(new Runnable() { 265 @Override 266 public void run() { 267 if (ActivityManagerNative.isSystemReady()) { 268 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 269 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 270 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 271 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 272 } 273 } 274 }); 275 } 276 } 277 278 private void update(BatteryProperties props) { 279 synchronized (mLock) { 280 if (!mUpdatesStopped) { 281 mBatteryProps = props; 282 // Process the new values. 283 processValuesLocked(); 284 } 285 } 286 } 287 288 private void processValuesLocked() { 289 boolean logOutlier = false; 290 long dischargeDuration = 0; 291 292 mBatteryLevelCritical = (mBatteryProps.batteryLevel <= mCriticalBatteryLevel); 293 if (mBatteryProps.chargerAcOnline) { 294 mPlugType = BatteryManager.BATTERY_PLUGGED_AC; 295 } else if (mBatteryProps.chargerUsbOnline) { 296 mPlugType = BatteryManager.BATTERY_PLUGGED_USB; 297 } else if (mBatteryProps.chargerWirelessOnline) { 298 mPlugType = BatteryManager.BATTERY_PLUGGED_WIRELESS; 299 } else { 300 mPlugType = BATTERY_PLUGGED_NONE; 301 } 302 303 if (DEBUG) { 304 Slog.d(TAG, "Processing new values: " 305 + "chargerAcOnline=" + mBatteryProps.chargerAcOnline 306 + ", chargerUsbOnline=" + mBatteryProps.chargerUsbOnline 307 + ", chargerWirelessOnline=" + mBatteryProps.chargerWirelessOnline 308 + ", batteryStatus=" + mBatteryProps.batteryStatus 309 + ", batteryHealth=" + mBatteryProps.batteryHealth 310 + ", batteryPresent=" + mBatteryProps.batteryPresent 311 + ", batteryLevel=" + mBatteryProps.batteryLevel 312 + ", batteryTechnology=" + mBatteryProps.batteryTechnology 313 + ", batteryVoltage=" + mBatteryProps.batteryVoltage 314 + ", batteryCurrentNow=" + mBatteryProps.batteryCurrentNow 315 + ", batteryChargeCounter=" + mBatteryProps.batteryChargeCounter 316 + ", batteryTemperature=" + mBatteryProps.batteryTemperature 317 + ", mBatteryLevelCritical=" + mBatteryLevelCritical 318 + ", mPlugType=" + mPlugType); 319 } 320 321 // Let the battery stats keep track of the current level. 322 try { 323 mBatteryStats.setBatteryState(mBatteryProps.batteryStatus, mBatteryProps.batteryHealth, 324 mPlugType, mBatteryProps.batteryLevel, mBatteryProps.batteryTemperature, 325 mBatteryProps.batteryVoltage); 326 } catch (RemoteException e) { 327 // Should never happen. 328 } 329 330 shutdownIfNoPowerLocked(); 331 shutdownIfOverTempLocked(); 332 333 if (mBatteryProps.batteryStatus != mLastBatteryStatus || 334 mBatteryProps.batteryHealth != mLastBatteryHealth || 335 mBatteryProps.batteryPresent != mLastBatteryPresent || 336 mBatteryProps.batteryLevel != mLastBatteryLevel || 337 mPlugType != mLastPlugType || 338 mBatteryProps.batteryVoltage != mLastBatteryVoltage || 339 mBatteryProps.batteryTemperature != mLastBatteryTemperature || 340 mInvalidCharger != mLastInvalidCharger) { 341 342 if (mPlugType != mLastPlugType) { 343 if (mLastPlugType == BATTERY_PLUGGED_NONE) { 344 // discharging -> charging 345 346 // There's no value in this data unless we've discharged at least once and the 347 // battery level has changed; so don't log until it does. 348 if (mDischargeStartTime != 0 && mDischargeStartLevel != mBatteryProps.batteryLevel) { 349 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 350 logOutlier = true; 351 EventLog.writeEvent(EventLogTags.BATTERY_DISCHARGE, dischargeDuration, 352 mDischargeStartLevel, mBatteryProps.batteryLevel); 353 // make sure we see a discharge event before logging again 354 mDischargeStartTime = 0; 355 } 356 } else if (mPlugType == BATTERY_PLUGGED_NONE) { 357 // charging -> discharging or we just powered up 358 mDischargeStartTime = SystemClock.elapsedRealtime(); 359 mDischargeStartLevel = mBatteryProps.batteryLevel; 360 } 361 } 362 if (mBatteryProps.batteryStatus != mLastBatteryStatus || 363 mBatteryProps.batteryHealth != mLastBatteryHealth || 364 mBatteryProps.batteryPresent != mLastBatteryPresent || 365 mPlugType != mLastPlugType) { 366 EventLog.writeEvent(EventLogTags.BATTERY_STATUS, 367 mBatteryProps.batteryStatus, mBatteryProps.batteryHealth, mBatteryProps.batteryPresent ? 1 : 0, 368 mPlugType, mBatteryProps.batteryTechnology); 369 } 370 if (mBatteryProps.batteryLevel != mLastBatteryLevel) { 371 // Don't do this just from voltage or temperature changes, that is 372 // too noisy. 373 EventLog.writeEvent(EventLogTags.BATTERY_LEVEL, 374 mBatteryProps.batteryLevel, mBatteryProps.batteryVoltage, mBatteryProps.batteryTemperature); 375 } 376 if (mBatteryLevelCritical && !mLastBatteryLevelCritical && 377 mPlugType == BATTERY_PLUGGED_NONE) { 378 // We want to make sure we log discharge cycle outliers 379 // if the battery is about to die. 380 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 381 logOutlier = true; 382 } 383 384 final boolean plugged = mPlugType != BATTERY_PLUGGED_NONE; 385 final boolean oldPlugged = mLastPlugType != BATTERY_PLUGGED_NONE; 386 387 /* The ACTION_BATTERY_LOW broadcast is sent in these situations: 388 * - is just un-plugged (previously was plugged) and battery level is 389 * less than or equal to WARNING, or 390 * - is not plugged and battery level falls to WARNING boundary 391 * (becomes <= mLowBatteryWarningLevel). 392 */ 393 final boolean sendBatteryLow = !plugged 394 && mBatteryProps.batteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN 395 && mBatteryProps.batteryLevel <= mLowBatteryWarningLevel 396 && (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel); 397 398 sendIntentLocked(); 399 400 // Separate broadcast is sent for power connected / not connected 401 // since the standard intent will not wake any applications and some 402 // applications may want to have smart behavior based on this. 403 if (mPlugType != 0 && mLastPlugType == 0) { 404 mHandler.post(new Runnable() { 405 @Override 406 public void run() { 407 Intent statusIntent = new Intent(Intent.ACTION_POWER_CONNECTED); 408 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 409 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 410 } 411 }); 412 } 413 else if (mPlugType == 0 && mLastPlugType != 0) { 414 mHandler.post(new Runnable() { 415 @Override 416 public void run() { 417 Intent statusIntent = new Intent(Intent.ACTION_POWER_DISCONNECTED); 418 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 419 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 420 } 421 }); 422 } 423 424 if (sendBatteryLow) { 425 mSentLowBatteryBroadcast = true; 426 mHandler.post(new Runnable() { 427 @Override 428 public void run() { 429 Intent statusIntent = new Intent(Intent.ACTION_BATTERY_LOW); 430 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 431 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 432 } 433 }); 434 } else if (mSentLowBatteryBroadcast && mLastBatteryLevel >= mLowBatteryCloseWarningLevel) { 435 mSentLowBatteryBroadcast = false; 436 mHandler.post(new Runnable() { 437 @Override 438 public void run() { 439 Intent statusIntent = new Intent(Intent.ACTION_BATTERY_OKAY); 440 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 441 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 442 } 443 }); 444 } 445 446 // Update the battery LED 447 mLed.updateLightsLocked(); 448 449 // This needs to be done after sendIntent() so that we get the lastest battery stats. 450 if (logOutlier && dischargeDuration != 0) { 451 logOutlierLocked(dischargeDuration); 452 } 453 454 mLastBatteryStatus = mBatteryProps.batteryStatus; 455 mLastBatteryHealth = mBatteryProps.batteryHealth; 456 mLastBatteryPresent = mBatteryProps.batteryPresent; 457 mLastBatteryLevel = mBatteryProps.batteryLevel; 458 mLastPlugType = mPlugType; 459 mLastBatteryVoltage = mBatteryProps.batteryVoltage; 460 mLastBatteryTemperature = mBatteryProps.batteryTemperature; 461 mLastBatteryLevelCritical = mBatteryLevelCritical; 462 mLastInvalidCharger = mInvalidCharger; 463 } 464 } 465 466 private void sendIntentLocked() { 467 // Pack up the values and broadcast them to everyone 468 final Intent intent = new Intent(Intent.ACTION_BATTERY_CHANGED); 469 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY 470 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 471 472 int icon = getIconLocked(mBatteryProps.batteryLevel); 473 474 intent.putExtra(BatteryManager.EXTRA_STATUS, mBatteryProps.batteryStatus); 475 intent.putExtra(BatteryManager.EXTRA_HEALTH, mBatteryProps.batteryHealth); 476 intent.putExtra(BatteryManager.EXTRA_PRESENT, mBatteryProps.batteryPresent); 477 intent.putExtra(BatteryManager.EXTRA_LEVEL, mBatteryProps.batteryLevel); 478 intent.putExtra(BatteryManager.EXTRA_SCALE, BATTERY_SCALE); 479 intent.putExtra(BatteryManager.EXTRA_ICON_SMALL, icon); 480 intent.putExtra(BatteryManager.EXTRA_PLUGGED, mPlugType); 481 intent.putExtra(BatteryManager.EXTRA_VOLTAGE, mBatteryProps.batteryVoltage); 482 intent.putExtra(BatteryManager.EXTRA_TEMPERATURE, mBatteryProps.batteryTemperature); 483 intent.putExtra(BatteryManager.EXTRA_TECHNOLOGY, mBatteryProps.batteryTechnology); 484 intent.putExtra(BatteryManager.EXTRA_INVALID_CHARGER, mInvalidCharger); 485 486 if (DEBUG) { 487 Slog.d(TAG, "Sending ACTION_BATTERY_CHANGED. level:" + mBatteryProps.batteryLevel + 488 ", scale:" + BATTERY_SCALE + ", status:" + mBatteryProps.batteryStatus + 489 ", health:" + mBatteryProps.batteryHealth + ", present:" + mBatteryProps.batteryPresent + 490 ", voltage: " + mBatteryProps.batteryVoltage + 491 ", temperature: " + mBatteryProps.batteryTemperature + 492 ", technology: " + mBatteryProps.batteryTechnology + 493 ", AC powered:" + mBatteryProps.chargerAcOnline + ", USB powered:" + mBatteryProps.chargerUsbOnline + 494 ", Wireless powered:" + mBatteryProps.chargerWirelessOnline + 495 ", icon:" + icon + ", invalid charger:" + mInvalidCharger); 496 } 497 498 mHandler.post(new Runnable() { 499 @Override 500 public void run() { 501 ActivityManagerNative.broadcastStickyIntent(intent, null, UserHandle.USER_ALL); 502 } 503 }); 504 } 505 506 private void logBatteryStatsLocked() { 507 IBinder batteryInfoService = ServiceManager.getService(BatteryStats.SERVICE_NAME); 508 if (batteryInfoService == null) return; 509 510 DropBoxManager db = (DropBoxManager) mContext.getSystemService(Context.DROPBOX_SERVICE); 511 if (db == null || !db.isTagEnabled("BATTERY_DISCHARGE_INFO")) return; 512 513 File dumpFile = null; 514 FileOutputStream dumpStream = null; 515 try { 516 // dump the service to a file 517 dumpFile = new File(DUMPSYS_DATA_PATH + BatteryStats.SERVICE_NAME + ".dump"); 518 dumpStream = new FileOutputStream(dumpFile); 519 batteryInfoService.dump(dumpStream.getFD(), DUMPSYS_ARGS); 520 FileUtils.sync(dumpStream); 521 522 // add dump file to drop box 523 db.addFile("BATTERY_DISCHARGE_INFO", dumpFile, DropBoxManager.IS_TEXT); 524 } catch (RemoteException e) { 525 Slog.e(TAG, "failed to dump battery service", e); 526 } catch (IOException e) { 527 Slog.e(TAG, "failed to write dumpsys file", e); 528 } finally { 529 // make sure we clean up 530 if (dumpStream != null) { 531 try { 532 dumpStream.close(); 533 } catch (IOException e) { 534 Slog.e(TAG, "failed to close dumpsys output stream"); 535 } 536 } 537 if (dumpFile != null && !dumpFile.delete()) { 538 Slog.e(TAG, "failed to delete temporary dumpsys file: " 539 + dumpFile.getAbsolutePath()); 540 } 541 } 542 } 543 544 private void logOutlierLocked(long duration) { 545 ContentResolver cr = mContext.getContentResolver(); 546 String dischargeThresholdString = Settings.Global.getString(cr, 547 Settings.Global.BATTERY_DISCHARGE_THRESHOLD); 548 String durationThresholdString = Settings.Global.getString(cr, 549 Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD); 550 551 if (dischargeThresholdString != null && durationThresholdString != null) { 552 try { 553 long durationThreshold = Long.parseLong(durationThresholdString); 554 int dischargeThreshold = Integer.parseInt(dischargeThresholdString); 555 if (duration <= durationThreshold && 556 mDischargeStartLevel - mBatteryProps.batteryLevel >= dischargeThreshold) { 557 // If the discharge cycle is bad enough we want to know about it. 558 logBatteryStatsLocked(); 559 } 560 if (DEBUG) Slog.v(TAG, "duration threshold: " + durationThreshold + 561 " discharge threshold: " + dischargeThreshold); 562 if (DEBUG) Slog.v(TAG, "duration: " + duration + " discharge: " + 563 (mDischargeStartLevel - mBatteryProps.batteryLevel)); 564 } catch (NumberFormatException e) { 565 Slog.e(TAG, "Invalid DischargeThresholds GService string: " + 566 durationThresholdString + " or " + dischargeThresholdString); 567 return; 568 } 569 } 570 } 571 572 private int getIconLocked(int level) { 573 if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_CHARGING) { 574 return com.android.internal.R.drawable.stat_sys_battery_charge; 575 } else if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_DISCHARGING) { 576 return com.android.internal.R.drawable.stat_sys_battery; 577 } else if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_NOT_CHARGING 578 || mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_FULL) { 579 if (isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY) 580 && mBatteryProps.batteryLevel >= 100) { 581 return com.android.internal.R.drawable.stat_sys_battery_charge; 582 } else { 583 return com.android.internal.R.drawable.stat_sys_battery; 584 } 585 } else { 586 return com.android.internal.R.drawable.stat_sys_battery_unknown; 587 } 588 } 589 590 @Override 591 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 592 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 593 != PackageManager.PERMISSION_GRANTED) { 594 595 pw.println("Permission Denial: can't dump Battery service from from pid=" 596 + Binder.getCallingPid() 597 + ", uid=" + Binder.getCallingUid()); 598 return; 599 } 600 601 synchronized (mLock) { 602 if (args == null || args.length == 0 || "-a".equals(args[0])) { 603 pw.println("Current Battery Service state:"); 604 if (mUpdatesStopped) { 605 pw.println(" (UPDATES STOPPED -- use 'reset' to restart)"); 606 } 607 pw.println(" AC powered: " + mBatteryProps.chargerAcOnline); 608 pw.println(" USB powered: " + mBatteryProps.chargerUsbOnline); 609 pw.println(" Wireless powered: " + mBatteryProps.chargerWirelessOnline); 610 pw.println(" status: " + mBatteryProps.batteryStatus); 611 pw.println(" health: " + mBatteryProps.batteryHealth); 612 pw.println(" present: " + mBatteryProps.batteryPresent); 613 pw.println(" level: " + mBatteryProps.batteryLevel); 614 pw.println(" scale: " + BATTERY_SCALE); 615 pw.println(" voltage: " + mBatteryProps.batteryVoltage); 616 617 if (mBatteryProps.batteryCurrentNow != Integer.MIN_VALUE) { 618 pw.println(" current now: " + mBatteryProps.batteryCurrentNow); 619 } 620 621 if (mBatteryProps.batteryChargeCounter != Integer.MIN_VALUE) { 622 pw.println(" charge counter: " + mBatteryProps.batteryChargeCounter); 623 } 624 625 pw.println(" temperature: " + mBatteryProps.batteryTemperature); 626 pw.println(" technology: " + mBatteryProps.batteryTechnology); 627 } else if (args.length == 3 && "set".equals(args[0])) { 628 String key = args[1]; 629 String value = args[2]; 630 try { 631 boolean update = true; 632 if ("ac".equals(key)) { 633 mBatteryProps.chargerAcOnline = Integer.parseInt(value) != 0; 634 } else if ("usb".equals(key)) { 635 mBatteryProps.chargerUsbOnline = Integer.parseInt(value) != 0; 636 } else if ("wireless".equals(key)) { 637 mBatteryProps.chargerWirelessOnline = Integer.parseInt(value) != 0; 638 } else if ("status".equals(key)) { 639 mBatteryProps.batteryStatus = Integer.parseInt(value); 640 } else if ("level".equals(key)) { 641 mBatteryProps.batteryLevel = Integer.parseInt(value); 642 } else if ("invalid".equals(key)) { 643 mInvalidCharger = Integer.parseInt(value); 644 } else { 645 pw.println("Unknown set option: " + key); 646 update = false; 647 } 648 if (update) { 649 long ident = Binder.clearCallingIdentity(); 650 try { 651 mUpdatesStopped = true; 652 processValuesLocked(); 653 } finally { 654 Binder.restoreCallingIdentity(ident); 655 } 656 } 657 } catch (NumberFormatException ex) { 658 pw.println("Bad value: " + value); 659 } 660 } else if (args.length == 1 && "reset".equals(args[0])) { 661 long ident = Binder.clearCallingIdentity(); 662 try { 663 mUpdatesStopped = false; 664 } finally { 665 Binder.restoreCallingIdentity(ident); 666 } 667 } else { 668 pw.println("Dump current battery state, or:"); 669 pw.println(" set ac|usb|wireless|status|level|invalid <value>"); 670 pw.println(" reset"); 671 } 672 } 673 } 674 675 private final UEventObserver mInvalidChargerObserver = new UEventObserver() { 676 @Override 677 public void onUEvent(UEventObserver.UEvent event) { 678 final int invalidCharger = "1".equals(event.get("SWITCH_STATE")) ? 1 : 0; 679 synchronized (mLock) { 680 if (mInvalidCharger != invalidCharger) { 681 mInvalidCharger = invalidCharger; 682 } 683 } 684 } 685 }; 686 687 private final class Led { 688 private final Light mBatteryLight; 689 690 private final int mBatteryLowARGB; 691 private final int mBatteryMediumARGB; 692 private final int mBatteryFullARGB; 693 private final int mBatteryLedOn; 694 private final int mBatteryLedOff; 695 696 public Led(Context context, LightsManager lights) { 697 mBatteryLight = lights.getLight(LightsManager.LIGHT_ID_BATTERY); 698 699 mBatteryLowARGB = context.getResources().getInteger( 700 com.android.internal.R.integer.config_notificationsBatteryLowARGB); 701 mBatteryMediumARGB = context.getResources().getInteger( 702 com.android.internal.R.integer.config_notificationsBatteryMediumARGB); 703 mBatteryFullARGB = context.getResources().getInteger( 704 com.android.internal.R.integer.config_notificationsBatteryFullARGB); 705 mBatteryLedOn = context.getResources().getInteger( 706 com.android.internal.R.integer.config_notificationsBatteryLedOn); 707 mBatteryLedOff = context.getResources().getInteger( 708 com.android.internal.R.integer.config_notificationsBatteryLedOff); 709 } 710 711 /** 712 * Synchronize on BatteryService. 713 */ 714 public void updateLightsLocked() { 715 final int level = mBatteryProps.batteryLevel; 716 final int status = mBatteryProps.batteryStatus; 717 if (level < mLowBatteryWarningLevel) { 718 if (status == BatteryManager.BATTERY_STATUS_CHARGING) { 719 // Solid red when battery is charging 720 mBatteryLight.setColor(mBatteryLowARGB); 721 } else { 722 // Flash red when battery is low and not charging 723 mBatteryLight.setFlashing(mBatteryLowARGB, Light.LIGHT_FLASH_TIMED, 724 mBatteryLedOn, mBatteryLedOff); 725 } 726 } else if (status == BatteryManager.BATTERY_STATUS_CHARGING 727 || status == BatteryManager.BATTERY_STATUS_FULL) { 728 if (status == BatteryManager.BATTERY_STATUS_FULL || level >= 90) { 729 // Solid green when full or charging and nearly full 730 mBatteryLight.setColor(mBatteryFullARGB); 731 } else { 732 // Solid orange when charging and halfway full 733 mBatteryLight.setColor(mBatteryMediumARGB); 734 } 735 } else { 736 // No lights if not charging and not low 737 mBatteryLight.turnOff(); 738 } 739 } 740 } 741 742 private final class BatteryListener extends IBatteryPropertiesListener.Stub { 743 @Override 744 public void batteryPropertiesChanged(BatteryProperties props) { 745 final long identity = Binder.clearCallingIdentity(); 746 try { 747 BatteryService.this.update(props); 748 } finally { 749 Binder.restoreCallingIdentity(identity); 750 } 751 } 752 } 753} 754