BatteryService.java revision c428aae6429c3fd5e2037c3793af399d9f6e23bf
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 com.android.internal.app.IBatteryStats; 20import com.android.server.am.BatteryStatsService; 21 22import android.app.ActivityManagerNative; 23import android.content.ContentResolver; 24import android.content.Context; 25import android.content.Intent; 26import android.content.pm.PackageManager; 27import android.os.BatteryManager; 28import android.os.Binder; 29import android.os.FileUtils; 30import android.os.IBinder; 31import android.os.DropBoxManager; 32import android.os.RemoteException; 33import android.os.ServiceManager; 34import android.os.SystemClock; 35import android.os.UEventObserver; 36import android.os.UserHandle; 37import android.provider.Settings; 38import android.util.EventLog; 39import android.util.Slog; 40 41import java.io.File; 42import java.io.FileDescriptor; 43import java.io.FileOutputStream; 44import java.io.IOException; 45import java.io.PrintWriter; 46 47 48/** 49 * <p>BatteryService monitors the charging status, and charge level of the device 50 * battery. When these values change this service broadcasts the new values 51 * to all {@link android.content.BroadcastReceiver IntentReceivers} that are 52 * watching the {@link android.content.Intent#ACTION_BATTERY_CHANGED 53 * BATTERY_CHANGED} action.</p> 54 * <p>The new values are stored in the Intent data and can be retrieved by 55 * calling {@link android.content.Intent#getExtra Intent.getExtra} with the 56 * following keys:</p> 57 * <p>"scale" - int, the maximum value for the charge level</p> 58 * <p>"level" - int, charge level, from 0 through "scale" inclusive</p> 59 * <p>"status" - String, the current charging status.<br /> 60 * <p>"health" - String, the current battery health.<br /> 61 * <p>"present" - boolean, true if the battery is present<br /> 62 * <p>"icon-small" - int, suggested small icon to use for this state</p> 63 * <p>"plugged" - int, 0 if the device is not plugged in; 1 if plugged 64 * into an AC power adapter; 2 if plugged in via USB.</p> 65 * <p>"voltage" - int, current battery voltage in millivolts</p> 66 * <p>"temperature" - int, current battery temperature in tenths of 67 * a degree Centigrade</p> 68 * <p>"technology" - String, the type of battery installed, e.g. "Li-ion"</p> 69 */ 70public final class BatteryService extends Binder { 71 private static final String TAG = BatteryService.class.getSimpleName(); 72 73 private static final boolean DEBUG = false; 74 75 private static final int BATTERY_SCALE = 100; // battery capacity is a percentage 76 77 // Used locally for determining when to make a last ditch effort to log 78 // discharge stats before the device dies. 79 private int mCriticalBatteryLevel; 80 81 private static final int DUMP_MAX_LENGTH = 24 * 1024; 82 private static final String[] DUMPSYS_ARGS = new String[] { "--checkin", "-u" }; 83 private static final String BATTERY_STATS_SERVICE_NAME = "batteryinfo"; 84 85 private static final String DUMPSYS_DATA_PATH = "/data/system/"; 86 87 // This should probably be exposed in the API, though it's not critical 88 private static final int BATTERY_PLUGGED_NONE = 0; 89 90 private final Context mContext; 91 private final IBatteryStats mBatteryStats; 92 93 private final Object mLock = new Object(); 94 95 /* Begin native fields: All of these fields are set by native code. */ 96 private boolean mAcOnline; 97 private boolean mUsbOnline; 98 private boolean mWirelessOnline; 99 private int mBatteryStatus; 100 private int mBatteryHealth; 101 private boolean mBatteryPresent; 102 private int mBatteryLevel; 103 private int mBatteryVoltage; 104 private int mBatteryTemperature; 105 private String mBatteryTechnology; 106 private boolean mBatteryLevelCritical; 107 /* End native fields. */ 108 109 private int mLastBatteryStatus; 110 private int mLastBatteryHealth; 111 private boolean mLastBatteryPresent; 112 private int mLastBatteryLevel; 113 private int mLastBatteryVoltage; 114 private int mLastBatteryTemperature; 115 private boolean mLastBatteryLevelCritical; 116 117 private int mInvalidCharger; 118 private int mLastInvalidCharger; 119 120 private int mLowBatteryWarningLevel; 121 private int mLowBatteryCloseWarningLevel; 122 private int mShutdownBatteryTemperature; 123 124 private int mPlugType; 125 private int mLastPlugType = -1; // Extra state so we can detect first run 126 127 private long mDischargeStartTime; 128 private int mDischargeStartLevel; 129 130 private boolean mUpdatesStopped; 131 132 private Led mLed; 133 134 private boolean mSentLowBatteryBroadcast = false; 135 136 private native void native_update(); 137 138 public BatteryService(Context context, LightsService lights) { 139 mContext = context; 140 mLed = new Led(context, lights); 141 mBatteryStats = BatteryStatsService.getService(); 142 143 mCriticalBatteryLevel = mContext.getResources().getInteger( 144 com.android.internal.R.integer.config_criticalBatteryWarningLevel); 145 mLowBatteryWarningLevel = mContext.getResources().getInteger( 146 com.android.internal.R.integer.config_lowBatteryWarningLevel); 147 mLowBatteryCloseWarningLevel = mContext.getResources().getInteger( 148 com.android.internal.R.integer.config_lowBatteryCloseWarningLevel); 149 mShutdownBatteryTemperature = mContext.getResources().getInteger( 150 com.android.internal.R.integer.config_shutdownBatteryTemperature); 151 152 mPowerSupplyObserver.startObserving("SUBSYSTEM=power_supply"); 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 // set initial status 161 synchronized (mLock) { 162 updateLocked(); 163 } 164 } 165 166 void systemReady() { 167 // check our power situation now that it is safe to display the shutdown dialog. 168 synchronized (mLock) { 169 shutdownIfNoPowerLocked(); 170 shutdownIfOverTempLocked(); 171 } 172 } 173 174 /** 175 * Returns true if the device is plugged into any of the specified plug types. 176 */ 177 public boolean isPowered(int plugTypeSet) { 178 synchronized (mLock) { 179 return isPoweredLocked(plugTypeSet); 180 } 181 } 182 183 private boolean isPoweredLocked(int plugTypeSet) { 184 // assume we are powered if battery state is unknown so 185 // the "stay on while plugged in" option will work. 186 if (mBatteryStatus == BatteryManager.BATTERY_STATUS_UNKNOWN) { 187 return true; 188 } 189 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_AC) != 0 && mAcOnline) { 190 return true; 191 } 192 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_USB) != 0 && mUsbOnline) { 193 return true; 194 } 195 if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_WIRELESS) != 0 && mWirelessOnline) { 196 return true; 197 } 198 return false; 199 } 200 201 /** 202 * Returns the current plug type. 203 */ 204 public int getPlugType() { 205 synchronized (mLock) { 206 return mPlugType; 207 } 208 } 209 210 /** 211 * Returns battery level as a percentage. 212 */ 213 public int getBatteryLevel() { 214 synchronized (mLock) { 215 return mBatteryLevel; 216 } 217 } 218 219 /** 220 * Returns true if battery level is below the first warning threshold. 221 */ 222 public boolean isBatteryLow() { 223 synchronized (mLock) { 224 return mBatteryPresent && mBatteryLevel <= mLowBatteryWarningLevel; 225 } 226 } 227 228 private void shutdownIfNoPowerLocked() { 229 // shut down gracefully if our battery is critically low and we are not powered. 230 // wait until the system has booted before attempting to display the shutdown dialog. 231 if (mBatteryLevel == 0 && !isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY) 232 && ActivityManagerNative.isSystemReady()) { 233 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 234 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 235 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 236 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 237 } 238 } 239 240 private void shutdownIfOverTempLocked() { 241 // shut down gracefully if temperature is too high (> 68.0C by default) 242 // wait until the system has booted before attempting to display the 243 // shutdown dialog. 244 if (mBatteryTemperature > mShutdownBatteryTemperature 245 && ActivityManagerNative.isSystemReady()) { 246 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 247 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 248 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 249 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 250 } 251 } 252 253 private void updateLocked() { 254 if (!mUpdatesStopped) { 255 // Update the values of mAcOnline, et. all. 256 native_update(); 257 258 // Process the new values. 259 processValuesLocked(); 260 } 261 } 262 263 private void processValuesLocked() { 264 boolean logOutlier = false; 265 long dischargeDuration = 0; 266 267 mBatteryLevelCritical = (mBatteryLevel <= mCriticalBatteryLevel); 268 if (mAcOnline) { 269 mPlugType = BatteryManager.BATTERY_PLUGGED_AC; 270 } else if (mUsbOnline) { 271 mPlugType = BatteryManager.BATTERY_PLUGGED_USB; 272 } else if (mWirelessOnline) { 273 mPlugType = BatteryManager.BATTERY_PLUGGED_WIRELESS; 274 } else { 275 mPlugType = BATTERY_PLUGGED_NONE; 276 } 277 278 if (DEBUG) { 279 Slog.d(TAG, "Processing new values: " 280 + "mAcOnline=" + mAcOnline 281 + ", mUsbOnline=" + mUsbOnline 282 + ", mWirelessOnline=" + mWirelessOnline 283 + ", mBatteryStatus=" + mBatteryStatus 284 + ", mBatteryHealth=" + mBatteryHealth 285 + ", mBatteryPresent=" + mBatteryPresent 286 + ", mBatteryLevel=" + mBatteryLevel 287 + ", mBatteryTechnology=" + mBatteryTechnology 288 + ", mBatteryVoltage=" + mBatteryVoltage 289 + ", mBatteryTemperature=" + mBatteryTemperature 290 + ", mBatteryLevelCritical=" + mBatteryLevelCritical 291 + ", mPlugType=" + mPlugType); 292 } 293 294 // Let the battery stats keep track of the current level. 295 try { 296 mBatteryStats.setBatteryState(mBatteryStatus, mBatteryHealth, 297 mPlugType, mBatteryLevel, mBatteryTemperature, 298 mBatteryVoltage); 299 } catch (RemoteException e) { 300 // Should never happen. 301 } 302 303 shutdownIfNoPowerLocked(); 304 shutdownIfOverTempLocked(); 305 306 if (mBatteryStatus != mLastBatteryStatus || 307 mBatteryHealth != mLastBatteryHealth || 308 mBatteryPresent != mLastBatteryPresent || 309 mBatteryLevel != mLastBatteryLevel || 310 mPlugType != mLastPlugType || 311 mBatteryVoltage != mLastBatteryVoltage || 312 mBatteryTemperature != mLastBatteryTemperature || 313 mInvalidCharger != mLastInvalidCharger) { 314 315 if (mPlugType != mLastPlugType) { 316 if (mLastPlugType == BATTERY_PLUGGED_NONE) { 317 // discharging -> charging 318 319 // There's no value in this data unless we've discharged at least once and the 320 // battery level has changed; so don't log until it does. 321 if (mDischargeStartTime != 0 && mDischargeStartLevel != mBatteryLevel) { 322 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 323 logOutlier = true; 324 EventLog.writeEvent(EventLogTags.BATTERY_DISCHARGE, dischargeDuration, 325 mDischargeStartLevel, mBatteryLevel); 326 // make sure we see a discharge event before logging again 327 mDischargeStartTime = 0; 328 } 329 } else if (mPlugType == BATTERY_PLUGGED_NONE) { 330 // charging -> discharging or we just powered up 331 mDischargeStartTime = SystemClock.elapsedRealtime(); 332 mDischargeStartLevel = mBatteryLevel; 333 } 334 } 335 if (mBatteryStatus != mLastBatteryStatus || 336 mBatteryHealth != mLastBatteryHealth || 337 mBatteryPresent != mLastBatteryPresent || 338 mPlugType != mLastPlugType) { 339 EventLog.writeEvent(EventLogTags.BATTERY_STATUS, 340 mBatteryStatus, mBatteryHealth, mBatteryPresent ? 1 : 0, 341 mPlugType, mBatteryTechnology); 342 } 343 if (mBatteryLevel != mLastBatteryLevel || 344 mBatteryVoltage != mLastBatteryVoltage || 345 mBatteryTemperature != mLastBatteryTemperature) { 346 EventLog.writeEvent(EventLogTags.BATTERY_LEVEL, 347 mBatteryLevel, mBatteryVoltage, mBatteryTemperature); 348 } 349 if (mBatteryLevelCritical && !mLastBatteryLevelCritical && 350 mPlugType == BATTERY_PLUGGED_NONE) { 351 // We want to make sure we log discharge cycle outliers 352 // if the battery is about to die. 353 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 354 logOutlier = true; 355 } 356 357 final boolean plugged = mPlugType != BATTERY_PLUGGED_NONE; 358 final boolean oldPlugged = mLastPlugType != BATTERY_PLUGGED_NONE; 359 360 /* The ACTION_BATTERY_LOW broadcast is sent in these situations: 361 * - is just un-plugged (previously was plugged) and battery level is 362 * less than or equal to WARNING, or 363 * - is not plugged and battery level falls to WARNING boundary 364 * (becomes <= mLowBatteryWarningLevel). 365 */ 366 final boolean sendBatteryLow = !plugged 367 && mBatteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN 368 && mBatteryLevel <= mLowBatteryWarningLevel 369 && (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel); 370 371 sendIntentLocked(); 372 373 // Separate broadcast is sent for power connected / not connected 374 // since the standard intent will not wake any applications and some 375 // applications may want to have smart behavior based on this. 376 Intent statusIntent = new Intent(); 377 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 378 if (mPlugType != 0 && mLastPlugType == 0) { 379 statusIntent.setAction(Intent.ACTION_POWER_CONNECTED); 380 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 381 } 382 else if (mPlugType == 0 && mLastPlugType != 0) { 383 statusIntent.setAction(Intent.ACTION_POWER_DISCONNECTED); 384 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 385 } 386 387 if (sendBatteryLow) { 388 mSentLowBatteryBroadcast = true; 389 statusIntent.setAction(Intent.ACTION_BATTERY_LOW); 390 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 391 } else if (mSentLowBatteryBroadcast && mLastBatteryLevel >= mLowBatteryCloseWarningLevel) { 392 mSentLowBatteryBroadcast = false; 393 statusIntent.setAction(Intent.ACTION_BATTERY_OKAY); 394 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 395 } 396 397 // Update the battery LED 398 mLed.updateLightsLocked(); 399 400 // This needs to be done after sendIntent() so that we get the lastest battery stats. 401 if (logOutlier && dischargeDuration != 0) { 402 logOutlierLocked(dischargeDuration); 403 } 404 405 mLastBatteryStatus = mBatteryStatus; 406 mLastBatteryHealth = mBatteryHealth; 407 mLastBatteryPresent = mBatteryPresent; 408 mLastBatteryLevel = mBatteryLevel; 409 mLastPlugType = mPlugType; 410 mLastBatteryVoltage = mBatteryVoltage; 411 mLastBatteryTemperature = mBatteryTemperature; 412 mLastBatteryLevelCritical = mBatteryLevelCritical; 413 mLastInvalidCharger = mInvalidCharger; 414 } 415 } 416 417 private void sendIntentLocked() { 418 // Pack up the values and broadcast them to everyone 419 Intent intent = new Intent(Intent.ACTION_BATTERY_CHANGED); 420 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY 421 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 422 423 int icon = getIconLocked(mBatteryLevel); 424 425 intent.putExtra(BatteryManager.EXTRA_STATUS, mBatteryStatus); 426 intent.putExtra(BatteryManager.EXTRA_HEALTH, mBatteryHealth); 427 intent.putExtra(BatteryManager.EXTRA_PRESENT, mBatteryPresent); 428 intent.putExtra(BatteryManager.EXTRA_LEVEL, mBatteryLevel); 429 intent.putExtra(BatteryManager.EXTRA_SCALE, BATTERY_SCALE); 430 intent.putExtra(BatteryManager.EXTRA_ICON_SMALL, icon); 431 intent.putExtra(BatteryManager.EXTRA_PLUGGED, mPlugType); 432 intent.putExtra(BatteryManager.EXTRA_VOLTAGE, mBatteryVoltage); 433 intent.putExtra(BatteryManager.EXTRA_TEMPERATURE, mBatteryTemperature); 434 intent.putExtra(BatteryManager.EXTRA_TECHNOLOGY, mBatteryTechnology); 435 intent.putExtra(BatteryManager.EXTRA_INVALID_CHARGER, mInvalidCharger); 436 437 if (DEBUG) { 438 Slog.d(TAG, "Sending ACTION_BATTERY_CHANGED. level:" + mBatteryLevel + 439 ", scale:" + BATTERY_SCALE + ", status:" + mBatteryStatus + 440 ", health:" + mBatteryHealth + ", present:" + mBatteryPresent + 441 ", voltage: " + mBatteryVoltage + 442 ", temperature: " + mBatteryTemperature + 443 ", technology: " + mBatteryTechnology + 444 ", AC powered:" + mAcOnline + ", USB powered:" + mUsbOnline + 445 ", Wireless powered:" + mWirelessOnline + 446 ", icon:" + icon + ", invalid charger:" + mInvalidCharger); 447 } 448 449 ActivityManagerNative.broadcastStickyIntent(intent, null, UserHandle.USER_ALL); 450 } 451 452 private void logBatteryStatsLocked() { 453 IBinder batteryInfoService = ServiceManager.getService(BATTERY_STATS_SERVICE_NAME); 454 if (batteryInfoService == null) return; 455 456 DropBoxManager db = (DropBoxManager) mContext.getSystemService(Context.DROPBOX_SERVICE); 457 if (db == null || !db.isTagEnabled("BATTERY_DISCHARGE_INFO")) return; 458 459 File dumpFile = null; 460 FileOutputStream dumpStream = null; 461 try { 462 // dump the service to a file 463 dumpFile = new File(DUMPSYS_DATA_PATH + BATTERY_STATS_SERVICE_NAME + ".dump"); 464 dumpStream = new FileOutputStream(dumpFile); 465 batteryInfoService.dump(dumpStream.getFD(), DUMPSYS_ARGS); 466 FileUtils.sync(dumpStream); 467 468 // add dump file to drop box 469 db.addFile("BATTERY_DISCHARGE_INFO", dumpFile, DropBoxManager.IS_TEXT); 470 } catch (RemoteException e) { 471 Slog.e(TAG, "failed to dump battery service", e); 472 } catch (IOException e) { 473 Slog.e(TAG, "failed to write dumpsys file", e); 474 } finally { 475 // make sure we clean up 476 if (dumpStream != null) { 477 try { 478 dumpStream.close(); 479 } catch (IOException e) { 480 Slog.e(TAG, "failed to close dumpsys output stream"); 481 } 482 } 483 if (dumpFile != null && !dumpFile.delete()) { 484 Slog.e(TAG, "failed to delete temporary dumpsys file: " 485 + dumpFile.getAbsolutePath()); 486 } 487 } 488 } 489 490 private void logOutlierLocked(long duration) { 491 ContentResolver cr = mContext.getContentResolver(); 492 String dischargeThresholdString = Settings.Global.getString(cr, 493 Settings.Global.BATTERY_DISCHARGE_THRESHOLD); 494 String durationThresholdString = Settings.Global.getString(cr, 495 Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD); 496 497 if (dischargeThresholdString != null && durationThresholdString != null) { 498 try { 499 long durationThreshold = Long.parseLong(durationThresholdString); 500 int dischargeThreshold = Integer.parseInt(dischargeThresholdString); 501 if (duration <= durationThreshold && 502 mDischargeStartLevel - mBatteryLevel >= dischargeThreshold) { 503 // If the discharge cycle is bad enough we want to know about it. 504 logBatteryStatsLocked(); 505 } 506 if (DEBUG) Slog.v(TAG, "duration threshold: " + durationThreshold + 507 " discharge threshold: " + dischargeThreshold); 508 if (DEBUG) Slog.v(TAG, "duration: " + duration + " discharge: " + 509 (mDischargeStartLevel - mBatteryLevel)); 510 } catch (NumberFormatException e) { 511 Slog.e(TAG, "Invalid DischargeThresholds GService string: " + 512 durationThresholdString + " or " + dischargeThresholdString); 513 return; 514 } 515 } 516 } 517 518 private int getIconLocked(int level) { 519 if (mBatteryStatus == BatteryManager.BATTERY_STATUS_CHARGING) { 520 return com.android.internal.R.drawable.stat_sys_battery_charge; 521 } else if (mBatteryStatus == BatteryManager.BATTERY_STATUS_DISCHARGING) { 522 return com.android.internal.R.drawable.stat_sys_battery; 523 } else if (mBatteryStatus == BatteryManager.BATTERY_STATUS_NOT_CHARGING 524 || mBatteryStatus == BatteryManager.BATTERY_STATUS_FULL) { 525 if (isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY) 526 && mBatteryLevel >= 100) { 527 return com.android.internal.R.drawable.stat_sys_battery_charge; 528 } else { 529 return com.android.internal.R.drawable.stat_sys_battery; 530 } 531 } else { 532 return com.android.internal.R.drawable.stat_sys_battery_unknown; 533 } 534 } 535 536 @Override 537 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 538 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 539 != PackageManager.PERMISSION_GRANTED) { 540 541 pw.println("Permission Denial: can't dump Battery service from from pid=" 542 + Binder.getCallingPid() 543 + ", uid=" + Binder.getCallingUid()); 544 return; 545 } 546 547 synchronized (mLock) { 548 if (args == null || args.length == 0 || "-a".equals(args[0])) { 549 pw.println("Current Battery Service state:"); 550 if (mUpdatesStopped) { 551 pw.println(" (UPDATES STOPPED -- use 'reset' to restart)"); 552 } 553 pw.println(" AC powered: " + mAcOnline); 554 pw.println(" USB powered: " + mUsbOnline); 555 pw.println(" Wireless powered: " + mWirelessOnline); 556 pw.println(" status: " + mBatteryStatus); 557 pw.println(" health: " + mBatteryHealth); 558 pw.println(" present: " + mBatteryPresent); 559 pw.println(" level: " + mBatteryLevel); 560 pw.println(" scale: " + BATTERY_SCALE); 561 pw.println(" voltage:" + mBatteryVoltage); 562 pw.println(" temperature: " + mBatteryTemperature); 563 pw.println(" technology: " + mBatteryTechnology); 564 } else if (args.length == 3 && "set".equals(args[0])) { 565 String key = args[1]; 566 String value = args[2]; 567 try { 568 boolean update = true; 569 if ("ac".equals(key)) { 570 mAcOnline = Integer.parseInt(value) != 0; 571 } else if ("usb".equals(key)) { 572 mUsbOnline = Integer.parseInt(value) != 0; 573 } else if ("wireless".equals(key)) { 574 mWirelessOnline = Integer.parseInt(value) != 0; 575 } else if ("status".equals(key)) { 576 mBatteryStatus = Integer.parseInt(value); 577 } else if ("level".equals(key)) { 578 mBatteryLevel = Integer.parseInt(value); 579 } else if ("invalid".equals(key)) { 580 mInvalidCharger = Integer.parseInt(value); 581 } else { 582 pw.println("Unknown set option: " + key); 583 update = false; 584 } 585 if (update) { 586 mUpdatesStopped = true; 587 processValuesLocked(); 588 } 589 } catch (NumberFormatException ex) { 590 pw.println("Bad value: " + value); 591 } 592 } else if (args.length == 1 && "reset".equals(args[0])) { 593 mUpdatesStopped = false; 594 updateLocked(); 595 } else { 596 pw.println("Dump current battery state, or:"); 597 pw.println(" set ac|usb|wireless|status|level|invalid <value>"); 598 pw.println(" reset"); 599 } 600 } 601 } 602 603 private final UEventObserver mPowerSupplyObserver = new UEventObserver() { 604 @Override 605 public void onUEvent(UEventObserver.UEvent event) { 606 synchronized (mLock) { 607 updateLocked(); 608 } 609 } 610 }; 611 612 private final UEventObserver mInvalidChargerObserver = new UEventObserver() { 613 @Override 614 public void onUEvent(UEventObserver.UEvent event) { 615 final int invalidCharger = "1".equals(event.get("SWITCH_STATE")) ? 1 : 0; 616 synchronized (mLock) { 617 if (mInvalidCharger != invalidCharger) { 618 mInvalidCharger = invalidCharger; 619 updateLocked(); 620 } 621 } 622 } 623 }; 624 625 private final class Led { 626 private final LightsService.Light mBatteryLight; 627 628 private final int mBatteryLowARGB; 629 private final int mBatteryMediumARGB; 630 private final int mBatteryFullARGB; 631 private final int mBatteryLedOn; 632 private final int mBatteryLedOff; 633 634 public Led(Context context, LightsService lights) { 635 mBatteryLight = lights.getLight(LightsService.LIGHT_ID_BATTERY); 636 637 mBatteryLowARGB = context.getResources().getInteger( 638 com.android.internal.R.integer.config_notificationsBatteryLowARGB); 639 mBatteryMediumARGB = context.getResources().getInteger( 640 com.android.internal.R.integer.config_notificationsBatteryMediumARGB); 641 mBatteryFullARGB = context.getResources().getInteger( 642 com.android.internal.R.integer.config_notificationsBatteryFullARGB); 643 mBatteryLedOn = context.getResources().getInteger( 644 com.android.internal.R.integer.config_notificationsBatteryLedOn); 645 mBatteryLedOff = context.getResources().getInteger( 646 com.android.internal.R.integer.config_notificationsBatteryLedOff); 647 } 648 649 /** 650 * Synchronize on BatteryService. 651 */ 652 public void updateLightsLocked() { 653 final int level = mBatteryLevel; 654 final int status = mBatteryStatus; 655 if (level < mLowBatteryWarningLevel) { 656 if (status == BatteryManager.BATTERY_STATUS_CHARGING) { 657 // Solid red when battery is charging 658 mBatteryLight.setColor(mBatteryLowARGB); 659 } else { 660 // Flash red when battery is low and not charging 661 mBatteryLight.setFlashing(mBatteryLowARGB, LightsService.LIGHT_FLASH_TIMED, 662 mBatteryLedOn, mBatteryLedOff); 663 } 664 } else if (status == BatteryManager.BATTERY_STATUS_CHARGING 665 || status == BatteryManager.BATTERY_STATUS_FULL) { 666 if (status == BatteryManager.BATTERY_STATUS_FULL || level >= 90) { 667 // Solid green when full or charging and nearly full 668 mBatteryLight.setColor(mBatteryFullARGB); 669 } else { 670 // Solid orange when charging and halfway full 671 mBatteryLight.setColor(mBatteryMediumARGB); 672 } 673 } else { 674 // No lights if not charging and not low 675 mBatteryLight.turnOff(); 676 } 677 } 678 } 679} 680