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