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