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 /** 240 * Returns a non-zero value if an unsupported charger is attached. 241 */ 242 public int getInvalidCharger() { 243 synchronized (mLock) { 244 return mInvalidCharger; 245 } 246 } 247 248 private void shutdownIfNoPowerLocked() { 249 // shut down gracefully if our battery is critically low and we are not powered. 250 // wait until the system has booted before attempting to display the shutdown dialog. 251 if (mBatteryLevel == 0 && !isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY)) { 252 mHandler.post(new Runnable() { 253 @Override 254 public void run() { 255 if (ActivityManagerNative.isSystemReady()) { 256 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 257 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 258 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 259 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 260 } 261 } 262 }); 263 } 264 } 265 266 private void shutdownIfOverTempLocked() { 267 // shut down gracefully if temperature is too high (> 68.0C by default) 268 // wait until the system has booted before attempting to display the 269 // shutdown dialog. 270 if (mBatteryTemperature > mShutdownBatteryTemperature) { 271 mHandler.post(new Runnable() { 272 @Override 273 public void run() { 274 if (ActivityManagerNative.isSystemReady()) { 275 Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); 276 intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); 277 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 278 mContext.startActivityAsUser(intent, UserHandle.CURRENT); 279 } 280 } 281 }); 282 } 283 } 284 285 private void updateLocked() { 286 if (!mUpdatesStopped) { 287 // Update the values of mAcOnline, et. all. 288 native_update(); 289 290 // Process the new values. 291 processValuesLocked(); 292 } 293 } 294 295 private void processValuesLocked() { 296 boolean logOutlier = false; 297 long dischargeDuration = 0; 298 299 mBatteryLevelCritical = (mBatteryLevel <= mCriticalBatteryLevel); 300 if (mAcOnline) { 301 mPlugType = BatteryManager.BATTERY_PLUGGED_AC; 302 } else if (mUsbOnline) { 303 mPlugType = BatteryManager.BATTERY_PLUGGED_USB; 304 } else if (mWirelessOnline) { 305 mPlugType = BatteryManager.BATTERY_PLUGGED_WIRELESS; 306 } else { 307 mPlugType = BATTERY_PLUGGED_NONE; 308 } 309 310 if (DEBUG) { 311 Slog.d(TAG, "Processing new values: " 312 + "mAcOnline=" + mAcOnline 313 + ", mUsbOnline=" + mUsbOnline 314 + ", mWirelessOnline=" + mWirelessOnline 315 + ", mBatteryStatus=" + mBatteryStatus 316 + ", mBatteryHealth=" + mBatteryHealth 317 + ", mBatteryPresent=" + mBatteryPresent 318 + ", mBatteryLevel=" + mBatteryLevel 319 + ", mBatteryTechnology=" + mBatteryTechnology 320 + ", mBatteryVoltage=" + mBatteryVoltage 321 + ", mBatteryTemperature=" + mBatteryTemperature 322 + ", mBatteryLevelCritical=" + mBatteryLevelCritical 323 + ", mPlugType=" + mPlugType); 324 } 325 326 // Let the battery stats keep track of the current level. 327 try { 328 mBatteryStats.setBatteryState(mBatteryStatus, mBatteryHealth, 329 mPlugType, mBatteryLevel, mBatteryTemperature, 330 mBatteryVoltage); 331 } catch (RemoteException e) { 332 // Should never happen. 333 } 334 335 shutdownIfNoPowerLocked(); 336 shutdownIfOverTempLocked(); 337 338 if (mBatteryStatus != mLastBatteryStatus || 339 mBatteryHealth != mLastBatteryHealth || 340 mBatteryPresent != mLastBatteryPresent || 341 mBatteryLevel != mLastBatteryLevel || 342 mPlugType != mLastPlugType || 343 mBatteryVoltage != mLastBatteryVoltage || 344 mBatteryTemperature != mLastBatteryTemperature || 345 mInvalidCharger != mLastInvalidCharger) { 346 347 if (mPlugType != mLastPlugType) { 348 if (mLastPlugType == BATTERY_PLUGGED_NONE) { 349 // discharging -> charging 350 351 // There's no value in this data unless we've discharged at least once and the 352 // battery level has changed; so don't log until it does. 353 if (mDischargeStartTime != 0 && mDischargeStartLevel != mBatteryLevel) { 354 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 355 logOutlier = true; 356 EventLog.writeEvent(EventLogTags.BATTERY_DISCHARGE, dischargeDuration, 357 mDischargeStartLevel, mBatteryLevel); 358 // make sure we see a discharge event before logging again 359 mDischargeStartTime = 0; 360 } 361 } else if (mPlugType == BATTERY_PLUGGED_NONE) { 362 // charging -> discharging or we just powered up 363 mDischargeStartTime = SystemClock.elapsedRealtime(); 364 mDischargeStartLevel = mBatteryLevel; 365 } 366 } 367 if (mBatteryStatus != mLastBatteryStatus || 368 mBatteryHealth != mLastBatteryHealth || 369 mBatteryPresent != mLastBatteryPresent || 370 mPlugType != mLastPlugType) { 371 EventLog.writeEvent(EventLogTags.BATTERY_STATUS, 372 mBatteryStatus, mBatteryHealth, mBatteryPresent ? 1 : 0, 373 mPlugType, mBatteryTechnology); 374 } 375 if (mBatteryLevel != mLastBatteryLevel || 376 mBatteryVoltage != mLastBatteryVoltage || 377 mBatteryTemperature != mLastBatteryTemperature) { 378 EventLog.writeEvent(EventLogTags.BATTERY_LEVEL, 379 mBatteryLevel, mBatteryVoltage, mBatteryTemperature); 380 } 381 if (mBatteryLevelCritical && !mLastBatteryLevelCritical && 382 mPlugType == BATTERY_PLUGGED_NONE) { 383 // We want to make sure we log discharge cycle outliers 384 // if the battery is about to die. 385 dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; 386 logOutlier = true; 387 } 388 389 final boolean plugged = mPlugType != BATTERY_PLUGGED_NONE; 390 final boolean oldPlugged = mLastPlugType != BATTERY_PLUGGED_NONE; 391 392 /* The ACTION_BATTERY_LOW broadcast is sent in these situations: 393 * - is just un-plugged (previously was plugged) and battery level is 394 * less than or equal to WARNING, or 395 * - is not plugged and battery level falls to WARNING boundary 396 * (becomes <= mLowBatteryWarningLevel). 397 */ 398 final boolean sendBatteryLow = !plugged 399 && mBatteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN 400 && mBatteryLevel <= mLowBatteryWarningLevel 401 && (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel); 402 403 sendIntentLocked(); 404 405 // Separate broadcast is sent for power connected / not connected 406 // since the standard intent will not wake any applications and some 407 // applications may want to have smart behavior based on this. 408 if (mPlugType != 0 && mLastPlugType == 0) { 409 mHandler.post(new Runnable() { 410 @Override 411 public void run() { 412 Intent statusIntent = new Intent(Intent.ACTION_POWER_CONNECTED); 413 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 414 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 415 } 416 }); 417 } 418 else if (mPlugType == 0 && mLastPlugType != 0) { 419 mHandler.post(new Runnable() { 420 @Override 421 public void run() { 422 Intent statusIntent = new Intent(Intent.ACTION_POWER_DISCONNECTED); 423 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 424 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 425 } 426 }); 427 } 428 429 if (sendBatteryLow) { 430 mSentLowBatteryBroadcast = true; 431 mHandler.post(new Runnable() { 432 @Override 433 public void run() { 434 Intent statusIntent = new Intent(Intent.ACTION_BATTERY_LOW); 435 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 436 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 437 } 438 }); 439 } else if (mSentLowBatteryBroadcast && mLastBatteryLevel >= mLowBatteryCloseWarningLevel) { 440 mSentLowBatteryBroadcast = false; 441 mHandler.post(new Runnable() { 442 @Override 443 public void run() { 444 Intent statusIntent = new Intent(Intent.ACTION_BATTERY_OKAY); 445 statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 446 mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); 447 } 448 }); 449 } 450 451 // Update the battery LED 452 mLed.updateLightsLocked(); 453 454 // This needs to be done after sendIntent() so that we get the lastest battery stats. 455 if (logOutlier && dischargeDuration != 0) { 456 logOutlierLocked(dischargeDuration); 457 } 458 459 mLastBatteryStatus = mBatteryStatus; 460 mLastBatteryHealth = mBatteryHealth; 461 mLastBatteryPresent = mBatteryPresent; 462 mLastBatteryLevel = mBatteryLevel; 463 mLastPlugType = mPlugType; 464 mLastBatteryVoltage = mBatteryVoltage; 465 mLastBatteryTemperature = mBatteryTemperature; 466 mLastBatteryLevelCritical = mBatteryLevelCritical; 467 mLastInvalidCharger = mInvalidCharger; 468 } 469 } 470 471 private void sendIntentLocked() { 472 // Pack up the values and broadcast them to everyone 473 final Intent intent = new Intent(Intent.ACTION_BATTERY_CHANGED); 474 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY 475 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 476 477 int icon = getIconLocked(mBatteryLevel); 478 479 intent.putExtra(BatteryManager.EXTRA_STATUS, mBatteryStatus); 480 intent.putExtra(BatteryManager.EXTRA_HEALTH, mBatteryHealth); 481 intent.putExtra(BatteryManager.EXTRA_PRESENT, mBatteryPresent); 482 intent.putExtra(BatteryManager.EXTRA_LEVEL, mBatteryLevel); 483 intent.putExtra(BatteryManager.EXTRA_SCALE, BATTERY_SCALE); 484 intent.putExtra(BatteryManager.EXTRA_ICON_SMALL, icon); 485 intent.putExtra(BatteryManager.EXTRA_PLUGGED, mPlugType); 486 intent.putExtra(BatteryManager.EXTRA_VOLTAGE, mBatteryVoltage); 487 intent.putExtra(BatteryManager.EXTRA_TEMPERATURE, mBatteryTemperature); 488 intent.putExtra(BatteryManager.EXTRA_TECHNOLOGY, mBatteryTechnology); 489 intent.putExtra(BatteryManager.EXTRA_INVALID_CHARGER, mInvalidCharger); 490 491 if (DEBUG) { 492 Slog.d(TAG, "Sending ACTION_BATTERY_CHANGED. level:" + mBatteryLevel + 493 ", scale:" + BATTERY_SCALE + ", status:" + mBatteryStatus + 494 ", health:" + mBatteryHealth + ", present:" + mBatteryPresent + 495 ", voltage: " + mBatteryVoltage + 496 ", temperature: " + mBatteryTemperature + 497 ", technology: " + mBatteryTechnology + 498 ", AC powered:" + mAcOnline + ", USB powered:" + mUsbOnline + 499 ", Wireless powered:" + mWirelessOnline + 500 ", icon:" + icon + ", invalid charger:" + mInvalidCharger); 501 } 502 503 mHandler.post(new Runnable() { 504 @Override 505 public void run() { 506 ActivityManagerNative.broadcastStickyIntent(intent, null, UserHandle.USER_ALL); 507 } 508 }); 509 } 510 511 private void logBatteryStatsLocked() { 512 IBinder batteryInfoService = ServiceManager.getService(BATTERY_STATS_SERVICE_NAME); 513 if (batteryInfoService == null) return; 514 515 DropBoxManager db = (DropBoxManager) mContext.getSystemService(Context.DROPBOX_SERVICE); 516 if (db == null || !db.isTagEnabled("BATTERY_DISCHARGE_INFO")) return; 517 518 File dumpFile = null; 519 FileOutputStream dumpStream = null; 520 try { 521 // dump the service to a file 522 dumpFile = new File(DUMPSYS_DATA_PATH + BATTERY_STATS_SERVICE_NAME + ".dump"); 523 dumpStream = new FileOutputStream(dumpFile); 524 batteryInfoService.dump(dumpStream.getFD(), DUMPSYS_ARGS); 525 FileUtils.sync(dumpStream); 526 527 // add dump file to drop box 528 db.addFile("BATTERY_DISCHARGE_INFO", dumpFile, DropBoxManager.IS_TEXT); 529 } catch (RemoteException e) { 530 Slog.e(TAG, "failed to dump battery service", e); 531 } catch (IOException e) { 532 Slog.e(TAG, "failed to write dumpsys file", e); 533 } finally { 534 // make sure we clean up 535 if (dumpStream != null) { 536 try { 537 dumpStream.close(); 538 } catch (IOException e) { 539 Slog.e(TAG, "failed to close dumpsys output stream"); 540 } 541 } 542 if (dumpFile != null && !dumpFile.delete()) { 543 Slog.e(TAG, "failed to delete temporary dumpsys file: " 544 + dumpFile.getAbsolutePath()); 545 } 546 } 547 } 548 549 private void logOutlierLocked(long duration) { 550 ContentResolver cr = mContext.getContentResolver(); 551 String dischargeThresholdString = Settings.Global.getString(cr, 552 Settings.Global.BATTERY_DISCHARGE_THRESHOLD); 553 String durationThresholdString = Settings.Global.getString(cr, 554 Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD); 555 556 if (dischargeThresholdString != null && durationThresholdString != null) { 557 try { 558 long durationThreshold = Long.parseLong(durationThresholdString); 559 int dischargeThreshold = Integer.parseInt(dischargeThresholdString); 560 if (duration <= durationThreshold && 561 mDischargeStartLevel - mBatteryLevel >= dischargeThreshold) { 562 // If the discharge cycle is bad enough we want to know about it. 563 logBatteryStatsLocked(); 564 } 565 if (DEBUG) Slog.v(TAG, "duration threshold: " + durationThreshold + 566 " discharge threshold: " + dischargeThreshold); 567 if (DEBUG) Slog.v(TAG, "duration: " + duration + " discharge: " + 568 (mDischargeStartLevel - mBatteryLevel)); 569 } catch (NumberFormatException e) { 570 Slog.e(TAG, "Invalid DischargeThresholds GService string: " + 571 durationThresholdString + " or " + dischargeThresholdString); 572 return; 573 } 574 } 575 } 576 577 private int getIconLocked(int level) { 578 if (mBatteryStatus == BatteryManager.BATTERY_STATUS_CHARGING) { 579 return com.android.internal.R.drawable.stat_sys_battery_charge; 580 } else if (mBatteryStatus == BatteryManager.BATTERY_STATUS_DISCHARGING) { 581 return com.android.internal.R.drawable.stat_sys_battery; 582 } else if (mBatteryStatus == BatteryManager.BATTERY_STATUS_NOT_CHARGING 583 || mBatteryStatus == BatteryManager.BATTERY_STATUS_FULL) { 584 if (isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY) 585 && mBatteryLevel >= 100) { 586 return com.android.internal.R.drawable.stat_sys_battery_charge; 587 } else { 588 return com.android.internal.R.drawable.stat_sys_battery; 589 } 590 } else { 591 return com.android.internal.R.drawable.stat_sys_battery_unknown; 592 } 593 } 594 595 @Override 596 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 597 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 598 != PackageManager.PERMISSION_GRANTED) { 599 600 pw.println("Permission Denial: can't dump Battery service from from pid=" 601 + Binder.getCallingPid() 602 + ", uid=" + Binder.getCallingUid()); 603 return; 604 } 605 606 synchronized (mLock) { 607 if (args == null || args.length == 0 || "-a".equals(args[0])) { 608 pw.println("Current Battery Service state:"); 609 if (mUpdatesStopped) { 610 pw.println(" (UPDATES STOPPED -- use 'reset' to restart)"); 611 } 612 pw.println(" AC powered: " + mAcOnline); 613 pw.println(" USB powered: " + mUsbOnline); 614 pw.println(" Wireless powered: " + mWirelessOnline); 615 pw.println(" status: " + mBatteryStatus); 616 pw.println(" health: " + mBatteryHealth); 617 pw.println(" present: " + mBatteryPresent); 618 pw.println(" level: " + mBatteryLevel); 619 pw.println(" scale: " + BATTERY_SCALE); 620 pw.println(" voltage:" + mBatteryVoltage); 621 pw.println(" temperature: " + mBatteryTemperature); 622 pw.println(" technology: " + mBatteryTechnology); 623 } else if (args.length == 3 && "set".equals(args[0])) { 624 String key = args[1]; 625 String value = args[2]; 626 try { 627 boolean update = true; 628 if ("ac".equals(key)) { 629 mAcOnline = Integer.parseInt(value) != 0; 630 } else if ("usb".equals(key)) { 631 mUsbOnline = Integer.parseInt(value) != 0; 632 } else if ("wireless".equals(key)) { 633 mWirelessOnline = Integer.parseInt(value) != 0; 634 } else if ("status".equals(key)) { 635 mBatteryStatus = Integer.parseInt(value); 636 } else if ("level".equals(key)) { 637 mBatteryLevel = Integer.parseInt(value); 638 } else if ("invalid".equals(key)) { 639 mInvalidCharger = Integer.parseInt(value); 640 } else { 641 pw.println("Unknown set option: " + key); 642 update = false; 643 } 644 if (update) { 645 mUpdatesStopped = true; 646 processValuesLocked(); 647 } 648 } catch (NumberFormatException ex) { 649 pw.println("Bad value: " + value); 650 } 651 } else if (args.length == 1 && "reset".equals(args[0])) { 652 mUpdatesStopped = false; 653 updateLocked(); 654 } else { 655 pw.println("Dump current battery state, or:"); 656 pw.println(" set ac|usb|wireless|status|level|invalid <value>"); 657 pw.println(" reset"); 658 } 659 } 660 } 661 662 private final UEventObserver mPowerSupplyObserver = new UEventObserver() { 663 @Override 664 public void onUEvent(UEventObserver.UEvent event) { 665 synchronized (mLock) { 666 updateLocked(); 667 } 668 } 669 }; 670 671 private final UEventObserver mInvalidChargerObserver = new UEventObserver() { 672 @Override 673 public void onUEvent(UEventObserver.UEvent event) { 674 final int invalidCharger = "1".equals(event.get("SWITCH_STATE")) ? 1 : 0; 675 synchronized (mLock) { 676 if (mInvalidCharger != invalidCharger) { 677 mInvalidCharger = invalidCharger; 678 updateLocked(); 679 } 680 } 681 } 682 }; 683 684 private final class Led { 685 private final LightsService.Light mBatteryLight; 686 687 private final int mBatteryLowARGB; 688 private final int mBatteryMediumARGB; 689 private final int mBatteryFullARGB; 690 private final int mBatteryLedOn; 691 private final int mBatteryLedOff; 692 693 public Led(Context context, LightsService lights) { 694 mBatteryLight = lights.getLight(LightsService.LIGHT_ID_BATTERY); 695 696 mBatteryLowARGB = context.getResources().getInteger( 697 com.android.internal.R.integer.config_notificationsBatteryLowARGB); 698 mBatteryMediumARGB = context.getResources().getInteger( 699 com.android.internal.R.integer.config_notificationsBatteryMediumARGB); 700 mBatteryFullARGB = context.getResources().getInteger( 701 com.android.internal.R.integer.config_notificationsBatteryFullARGB); 702 mBatteryLedOn = context.getResources().getInteger( 703 com.android.internal.R.integer.config_notificationsBatteryLedOn); 704 mBatteryLedOff = context.getResources().getInteger( 705 com.android.internal.R.integer.config_notificationsBatteryLedOff); 706 } 707 708 /** 709 * Synchronize on BatteryService. 710 */ 711 public void updateLightsLocked() { 712 final int level = mBatteryLevel; 713 final int status = mBatteryStatus; 714 if (level < mLowBatteryWarningLevel) { 715 if (status == BatteryManager.BATTERY_STATUS_CHARGING) { 716 // Solid red when battery is charging 717 mBatteryLight.setColor(mBatteryLowARGB); 718 } else { 719 // Flash red when battery is low and not charging 720 mBatteryLight.setFlashing(mBatteryLowARGB, LightsService.LIGHT_FLASH_TIMED, 721 mBatteryLedOn, mBatteryLedOff); 722 } 723 } else if (status == BatteryManager.BATTERY_STATUS_CHARGING 724 || status == BatteryManager.BATTERY_STATUS_FULL) { 725 if (status == BatteryManager.BATTERY_STATUS_FULL || level >= 90) { 726 // Solid green when full or charging and nearly full 727 mBatteryLight.setColor(mBatteryFullARGB); 728 } else { 729 // Solid orange when charging and halfway full 730 mBatteryLight.setColor(mBatteryMediumARGB); 731 } 732 } else { 733 // No lights if not charging and not low 734 mBatteryLight.turnOff(); 735 } 736 } 737 } 738 } 739