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.internal.telephony; 18 19 import android.os.AsyncResult; 20 import android.os.Handler; 21 import android.os.Message; 22 import android.os.Registrant; 23 import android.os.RegistrantList; 24 import android.os.SystemClock; 25 import android.telephony.CellInfo; 26 import android.telephony.ServiceState; 27 import android.telephony.SignalStrength; 28 import android.util.TimeUtils; 29 30 import java.io.FileDescriptor; 31 import java.io.PrintWriter; 32 import java.util.ArrayList; 33 import java.util.List; 34 35 import com.android.internal.telephony.dataconnection.DcTrackerBase; 36 import com.android.internal.telephony.uicc.IccCardApplicationStatus.AppState; 37 import com.android.internal.telephony.uicc.IccRecords; 38 import com.android.internal.telephony.uicc.UiccCardApplication; 39 import com.android.internal.telephony.uicc.UiccController; 40 41 /** 42 * {@hide} 43 */ 44 public abstract class ServiceStateTracker extends Handler { 45 protected static final boolean DBG = true; 46 protected static final boolean VDBG = false; 47 48 protected static final String PROP_FORCE_ROAMING = "telephony.test.forceRoaming"; 49 50 protected CommandsInterface mCi; 51 protected UiccController mUiccController = null; 52 protected UiccCardApplication mUiccApplcation = null; 53 protected IccRecords mIccRecords = null; 54 55 protected PhoneBase mPhoneBase; 56 57 protected boolean mVoiceCapable; 58 59 public ServiceState mSS = new ServiceState(); 60 protected ServiceState mNewSS = new ServiceState(); 61 62 private static final long LAST_CELL_INFO_LIST_MAX_AGE_MS = 2000; 63 protected long mLastCellInfoListTime; 64 protected List<CellInfo> mLastCellInfoList = null; 65 66 // This is final as subclasses alias to a more specific type 67 // so we don't want the reference to change. 68 protected final CellInfo mCellInfo; 69 70 protected SignalStrength mSignalStrength = new SignalStrength(); 71 72 // TODO - this should not be public, right now used externally GsmConnetion. 73 public RestrictedState mRestrictedState = new RestrictedState(); 74 75 /* The otaspMode passed to PhoneStateListener#onOtaspChanged */ 76 static public final int OTASP_UNINITIALIZED = 0; 77 static public final int OTASP_UNKNOWN = 1; 78 static public final int OTASP_NEEDED = 2; 79 static public final int OTASP_NOT_NEEDED = 3; 80 81 /** 82 * A unique identifier to track requests associated with a poll 83 * and ignore stale responses. The value is a count-down of 84 * expected responses in this pollingContext. 85 */ 86 protected int[] mPollingContext; 87 protected boolean mDesiredPowerState; 88 89 /** 90 * By default, strength polling is enabled. However, if we're 91 * getting unsolicited signal strength updates from the radio, set 92 * value to true and don't bother polling any more. 93 */ 94 protected boolean mDontPollSignalStrength = false; 95 96 protected RegistrantList mRoamingOnRegistrants = new RegistrantList(); 97 protected RegistrantList mRoamingOffRegistrants = new RegistrantList(); 98 protected RegistrantList mAttachedRegistrants = new RegistrantList(); 99 protected RegistrantList mDetachedRegistrants = new RegistrantList(); 100 protected RegistrantList mNetworkAttachedRegistrants = new RegistrantList(); 101 protected RegistrantList mPsRestrictEnabledRegistrants = new RegistrantList(); 102 protected RegistrantList mPsRestrictDisabledRegistrants = new RegistrantList(); 103 104 /* Radio power off pending flag and tag counter */ 105 private boolean mPendingRadioPowerOffAfterDataOff = false; 106 private int mPendingRadioPowerOffAfterDataOffTag = 0; 107 108 /** Signal strength poll rate. */ 109 protected static final int POLL_PERIOD_MILLIS = 20 * 1000; 110 111 /** Waiting period before recheck gprs and voice registration. */ 112 public static final int DEFAULT_GPRS_CHECK_PERIOD_MILLIS = 60 * 1000; 113 114 /** GSM events */ 115 protected static final int EVENT_RADIO_STATE_CHANGED = 1; 116 protected static final int EVENT_NETWORK_STATE_CHANGED = 2; 117 protected static final int EVENT_GET_SIGNAL_STRENGTH = 3; 118 protected static final int EVENT_POLL_STATE_REGISTRATION = 4; 119 protected static final int EVENT_POLL_STATE_GPRS = 5; 120 protected static final int EVENT_POLL_STATE_OPERATOR = 6; 121 protected static final int EVENT_POLL_SIGNAL_STRENGTH = 10; 122 protected static final int EVENT_NITZ_TIME = 11; 123 protected static final int EVENT_SIGNAL_STRENGTH_UPDATE = 12; 124 protected static final int EVENT_RADIO_AVAILABLE = 13; 125 protected static final int EVENT_POLL_STATE_NETWORK_SELECTION_MODE = 14; 126 protected static final int EVENT_GET_LOC_DONE = 15; 127 protected static final int EVENT_SIM_RECORDS_LOADED = 16; 128 protected static final int EVENT_SIM_READY = 17; 129 protected static final int EVENT_LOCATION_UPDATES_ENABLED = 18; 130 protected static final int EVENT_GET_PREFERRED_NETWORK_TYPE = 19; 131 protected static final int EVENT_SET_PREFERRED_NETWORK_TYPE = 20; 132 protected static final int EVENT_RESET_PREFERRED_NETWORK_TYPE = 21; 133 protected static final int EVENT_CHECK_REPORT_GPRS = 22; 134 protected static final int EVENT_RESTRICTED_STATE_CHANGED = 23; 135 136 /** CDMA events */ 137 protected static final int EVENT_POLL_STATE_REGISTRATION_CDMA = 24; 138 protected static final int EVENT_POLL_STATE_OPERATOR_CDMA = 25; 139 protected static final int EVENT_RUIM_READY = 26; 140 protected static final int EVENT_RUIM_RECORDS_LOADED = 27; 141 protected static final int EVENT_POLL_SIGNAL_STRENGTH_CDMA = 28; 142 protected static final int EVENT_GET_SIGNAL_STRENGTH_CDMA = 29; 143 protected static final int EVENT_NETWORK_STATE_CHANGED_CDMA = 30; 144 protected static final int EVENT_GET_LOC_DONE_CDMA = 31; 145 //protected static final int EVENT_UNUSED = 32; 146 protected static final int EVENT_NV_LOADED = 33; 147 protected static final int EVENT_POLL_STATE_CDMA_SUBSCRIPTION = 34; 148 protected static final int EVENT_NV_READY = 35; 149 protected static final int EVENT_ERI_FILE_LOADED = 36; 150 protected static final int EVENT_OTA_PROVISION_STATUS_CHANGE = 37; 151 protected static final int EVENT_SET_RADIO_POWER_OFF = 38; 152 protected static final int EVENT_CDMA_SUBSCRIPTION_SOURCE_CHANGED = 39; 153 protected static final int EVENT_CDMA_PRL_VERSION_CHANGED = 40; 154 protected static final int EVENT_RADIO_ON = 41; 155 protected static final int EVENT_ICC_CHANGED = 42; 156 protected static final int EVENT_GET_CELL_INFO_LIST = 43; 157 protected static final int EVENT_UNSOL_CELL_INFO_LIST = 44; 158 159 protected static final String TIMEZONE_PROPERTY = "persist.sys.timezone"; 160 161 /** 162 * List of ISO codes for countries that can have an offset of 163 * GMT+0 when not in daylight savings time. This ignores some 164 * small places such as the Canary Islands (Spain) and 165 * Danmarkshavn (Denmark). The list must be sorted by code. 166 */ 167 protected static final String[] GMT_COUNTRY_CODES = { 168 "bf", // Burkina Faso 169 "ci", // Cote d'Ivoire 170 "eh", // Western Sahara 171 "fo", // Faroe Islands, Denmark 172 "gb", // United Kingdom of Great Britain and Northern Ireland 173 "gh", // Ghana 174 "gm", // Gambia 175 "gn", // Guinea 176 "gw", // Guinea Bissau 177 "ie", // Ireland 178 "lr", // Liberia 179 "is", // Iceland 180 "ma", // Morocco 181 "ml", // Mali 182 "mr", // Mauritania 183 "pt", // Portugal 184 "sl", // Sierra Leone 185 "sn", // Senegal 186 "st", // Sao Tome and Principe 187 "tg", // Togo 188 }; 189 190 private class CellInfoResult { 191 List<CellInfo> list; 192 Object lockObj = new Object(); 193 } 194 195 /** Reason for registration denial. */ 196 protected static final String REGISTRATION_DENIED_GEN = "General"; 197 protected static final String REGISTRATION_DENIED_AUTH = "Authentication Failure"; 198 199 protected ServiceStateTracker(PhoneBase phoneBase, CommandsInterface ci, CellInfo cellInfo) { 200 mPhoneBase = phoneBase; 201 mCellInfo = cellInfo; 202 mCi = ci; 203 mVoiceCapable = mPhoneBase.getContext().getResources().getBoolean( 204 com.android.internal.R.bool.config_voice_capable); 205 mUiccController = UiccController.getInstance(); 206 mUiccController.registerForIccChanged(this, EVENT_ICC_CHANGED, null); 207 mCi.setOnSignalStrengthUpdate(this, EVENT_SIGNAL_STRENGTH_UPDATE, null); 208 mCi.registerForCellInfoList(this, EVENT_UNSOL_CELL_INFO_LIST, null); 209 } 210 211 public void dispose() { 212 mCi.unSetOnSignalStrengthUpdate(this); 213 mUiccController.unregisterForIccChanged(this); 214 mCi.unregisterForCellInfoList(this); 215 } 216 217 public boolean getDesiredPowerState() { 218 return mDesiredPowerState; 219 } 220 221 private SignalStrength mLastSignalStrength = null; 222 protected boolean notifySignalStrength() { 223 boolean notified = false; 224 synchronized(mCellInfo) { 225 if (!mSignalStrength.equals(mLastSignalStrength)) { 226 try { 227 mPhoneBase.notifySignalStrength(); 228 notified = true; 229 } catch (NullPointerException ex) { 230 loge("updateSignalStrength() Phone already destroyed: " + ex 231 + "SignalStrength not notified"); 232 } 233 } 234 } 235 return notified; 236 } 237 238 /** 239 * Some operators have been known to report registration failure 240 * data only devices, to fix that use DataRegState. 241 */ 242 protected void useDataRegStateForDataOnlyDevices() { 243 if (mVoiceCapable == false) { 244 if (DBG) { 245 log("useDataRegStateForDataOnlyDevice: VoiceRegState=" + mNewSS.getVoiceRegState() 246 + " DataRegState=" + mNewSS.getDataRegState()); 247 } 248 // TODO: Consider not lying and instead have callers know the difference. 249 mNewSS.setVoiceRegState(mNewSS.getDataRegState()); 250 } 251 } 252 253 254 /** 255 * Registration point for combined roaming on 256 * combined roaming is true when roaming is true and ONS differs SPN 257 * 258 * @param h handler to notify 259 * @param what what code of message when delivered 260 * @param obj placed in Message.obj 261 */ 262 public void registerForRoamingOn(Handler h, int what, Object obj) { 263 Registrant r = new Registrant(h, what, obj); 264 mRoamingOnRegistrants.add(r); 265 266 if (mSS.getRoaming()) { 267 r.notifyRegistrant(); 268 } 269 } 270 271 public void unregisterForRoamingOn(Handler h) { 272 mRoamingOnRegistrants.remove(h); 273 } 274 275 /** 276 * Registration point for combined roaming off 277 * combined roaming is true when roaming is true and ONS differs SPN 278 * 279 * @param h handler to notify 280 * @param what what code of message when delivered 281 * @param obj placed in Message.obj 282 */ 283 public void registerForRoamingOff(Handler h, int what, Object obj) { 284 Registrant r = new Registrant(h, what, obj); 285 mRoamingOffRegistrants.add(r); 286 287 if (!mSS.getRoaming()) { 288 r.notifyRegistrant(); 289 } 290 } 291 292 public void unregisterForRoamingOff(Handler h) { 293 mRoamingOffRegistrants.remove(h); 294 } 295 296 /** 297 * Re-register network by toggling preferred network type. 298 * This is a work-around to deregister and register network since there is 299 * no ril api to set COPS=2 (deregister) only. 300 * 301 * @param onComplete is dispatched when this is complete. it will be 302 * an AsyncResult, and onComplete.obj.exception will be non-null 303 * on failure. 304 */ 305 public void reRegisterNetwork(Message onComplete) { 306 mCi.getPreferredNetworkType( 307 obtainMessage(EVENT_GET_PREFERRED_NETWORK_TYPE, onComplete)); 308 } 309 310 public void 311 setRadioPower(boolean power) { 312 mDesiredPowerState = power; 313 314 setPowerStateToDesired(); 315 } 316 317 /** 318 * These two flags manage the behavior of the cell lock -- the 319 * lock should be held if either flag is true. The intention is 320 * to allow temporary acquisition of the lock to get a single 321 * update. Such a lock grab and release can thus be made to not 322 * interfere with more permanent lock holds -- in other words, the 323 * lock will only be released if both flags are false, and so 324 * releases by temporary users will only affect the lock state if 325 * there is no continuous user. 326 */ 327 private boolean mWantContinuousLocationUpdates; 328 private boolean mWantSingleLocationUpdate; 329 330 public void enableSingleLocationUpdate() { 331 if (mWantSingleLocationUpdate || mWantContinuousLocationUpdates) return; 332 mWantSingleLocationUpdate = true; 333 mCi.setLocationUpdates(true, obtainMessage(EVENT_LOCATION_UPDATES_ENABLED)); 334 } 335 336 public void enableLocationUpdates() { 337 if (mWantSingleLocationUpdate || mWantContinuousLocationUpdates) return; 338 mWantContinuousLocationUpdates = true; 339 mCi.setLocationUpdates(true, obtainMessage(EVENT_LOCATION_UPDATES_ENABLED)); 340 } 341 342 protected void disableSingleLocationUpdate() { 343 mWantSingleLocationUpdate = false; 344 if (!mWantSingleLocationUpdate && !mWantContinuousLocationUpdates) { 345 mCi.setLocationUpdates(false, null); 346 } 347 } 348 349 public void disableLocationUpdates() { 350 mWantContinuousLocationUpdates = false; 351 if (!mWantSingleLocationUpdate && !mWantContinuousLocationUpdates) { 352 mCi.setLocationUpdates(false, null); 353 } 354 } 355 356 @Override 357 public void handleMessage(Message msg) { 358 switch (msg.what) { 359 case EVENT_SET_RADIO_POWER_OFF: 360 synchronized(this) { 361 if (mPendingRadioPowerOffAfterDataOff && 362 (msg.arg1 == mPendingRadioPowerOffAfterDataOffTag)) { 363 if (DBG) log("EVENT_SET_RADIO_OFF, turn radio off now."); 364 hangupAndPowerOff(); 365 mPendingRadioPowerOffAfterDataOffTag += 1; 366 mPendingRadioPowerOffAfterDataOff = false; 367 } else { 368 log("EVENT_SET_RADIO_OFF is stale arg1=" + msg.arg1 + 369 "!= tag=" + mPendingRadioPowerOffAfterDataOffTag); 370 } 371 } 372 break; 373 374 case EVENT_ICC_CHANGED: 375 onUpdateIccAvailability(); 376 break; 377 378 case EVENT_GET_CELL_INFO_LIST: { 379 AsyncResult ar = (AsyncResult) msg.obj; 380 CellInfoResult result = (CellInfoResult) ar.userObj; 381 synchronized(result.lockObj) { 382 if (ar.exception != null) { 383 log("EVENT_GET_CELL_INFO_LIST: error ret null, e=" + ar.exception); 384 result.list = null; 385 } else { 386 result.list = (List<CellInfo>) ar.result; 387 388 if (VDBG) { 389 log("EVENT_GET_CELL_INFO_LIST: size=" + result.list.size() 390 + " list=" + result.list); 391 } 392 } 393 mLastCellInfoListTime = SystemClock.elapsedRealtime(); 394 mLastCellInfoList = result.list; 395 result.lockObj.notify(); 396 } 397 break; 398 } 399 400 case EVENT_UNSOL_CELL_INFO_LIST: { 401 AsyncResult ar = (AsyncResult) msg.obj; 402 if (ar.exception != null) { 403 log("EVENT_UNSOL_CELL_INFO_LIST: error ignoring, e=" + ar.exception); 404 } else { 405 List<CellInfo> list = (List<CellInfo>) ar.result; 406 if (DBG) { 407 log("EVENT_UNSOL_CELL_INFO_LIST: size=" + list.size() 408 + " list=" + list); 409 } 410 mLastCellInfoListTime = SystemClock.elapsedRealtime(); 411 mLastCellInfoList = list; 412 mPhoneBase.notifyCellInfo(list); 413 } 414 break; 415 } 416 417 default: 418 log("Unhandled message with number: " + msg.what); 419 break; 420 } 421 } 422 423 protected abstract Phone getPhone(); 424 protected abstract void handlePollStateResult(int what, AsyncResult ar); 425 protected abstract void updateSpnDisplay(); 426 protected abstract void setPowerStateToDesired(); 427 protected abstract void onUpdateIccAvailability(); 428 protected abstract void log(String s); 429 protected abstract void loge(String s); 430 431 public abstract int getCurrentDataConnectionState(); 432 public abstract boolean isConcurrentVoiceAndDataAllowed(); 433 434 /** 435 * Registration point for transition into DataConnection attached. 436 * @param h handler to notify 437 * @param what what code of message when delivered 438 * @param obj placed in Message.obj 439 */ 440 public void registerForDataConnectionAttached(Handler h, int what, Object obj) { 441 Registrant r = new Registrant(h, what, obj); 442 mAttachedRegistrants.add(r); 443 444 if (getCurrentDataConnectionState() == ServiceState.STATE_IN_SERVICE) { 445 r.notifyRegistrant(); 446 } 447 } 448 public void unregisterForDataConnectionAttached(Handler h) { 449 mAttachedRegistrants.remove(h); 450 } 451 452 /** 453 * Registration point for transition into DataConnection detached. 454 * @param h handler to notify 455 * @param what what code of message when delivered 456 * @param obj placed in Message.obj 457 */ 458 public void registerForDataConnectionDetached(Handler h, int what, Object obj) { 459 Registrant r = new Registrant(h, what, obj); 460 mDetachedRegistrants.add(r); 461 462 if (getCurrentDataConnectionState() != ServiceState.STATE_IN_SERVICE) { 463 r.notifyRegistrant(); 464 } 465 } 466 public void unregisterForDataConnectionDetached(Handler h) { 467 mDetachedRegistrants.remove(h); 468 } 469 470 /** 471 * Registration point for transition into network attached. 472 * @param h handler to notify 473 * @param what what code of message when delivered 474 * @param obj in Message.obj 475 */ 476 public void registerForNetworkAttached(Handler h, int what, Object obj) { 477 Registrant r = new Registrant(h, what, obj); 478 479 mNetworkAttachedRegistrants.add(r); 480 if (mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE) { 481 r.notifyRegistrant(); 482 } 483 } 484 public void unregisterForNetworkAttached(Handler h) { 485 mNetworkAttachedRegistrants.remove(h); 486 } 487 488 /** 489 * Registration point for transition into packet service restricted zone. 490 * @param h handler to notify 491 * @param what what code of message when delivered 492 * @param obj placed in Message.obj 493 */ 494 public void registerForPsRestrictedEnabled(Handler h, int what, Object obj) { 495 Registrant r = new Registrant(h, what, obj); 496 mPsRestrictEnabledRegistrants.add(r); 497 498 if (mRestrictedState.isPsRestricted()) { 499 r.notifyRegistrant(); 500 } 501 } 502 503 public void unregisterForPsRestrictedEnabled(Handler h) { 504 mPsRestrictEnabledRegistrants.remove(h); 505 } 506 507 /** 508 * Registration point for transition out of packet service restricted zone. 509 * @param h handler to notify 510 * @param what what code of message when delivered 511 * @param obj placed in Message.obj 512 */ 513 public void registerForPsRestrictedDisabled(Handler h, int what, Object obj) { 514 Registrant r = new Registrant(h, what, obj); 515 mPsRestrictDisabledRegistrants.add(r); 516 517 if (mRestrictedState.isPsRestricted()) { 518 r.notifyRegistrant(); 519 } 520 } 521 522 public void unregisterForPsRestrictedDisabled(Handler h) { 523 mPsRestrictDisabledRegistrants.remove(h); 524 } 525 526 /** 527 * Clean up existing voice and data connection then turn off radio power. 528 * 529 * Hang up the existing voice calls to decrease call drop rate. 530 */ 531 public void powerOffRadioSafely(DcTrackerBase dcTracker) { 532 synchronized (this) { 533 if (!mPendingRadioPowerOffAfterDataOff) { 534 // To minimize race conditions we call cleanUpAllConnections on 535 // both if else paths instead of before this isDisconnected test. 536 if (dcTracker.isDisconnected()) { 537 // To minimize race conditions we do this after isDisconnected 538 dcTracker.cleanUpAllConnections(Phone.REASON_RADIO_TURNED_OFF); 539 if (DBG) log("Data disconnected, turn off radio right away."); 540 hangupAndPowerOff(); 541 } else { 542 dcTracker.cleanUpAllConnections(Phone.REASON_RADIO_TURNED_OFF); 543 Message msg = Message.obtain(this); 544 msg.what = EVENT_SET_RADIO_POWER_OFF; 545 msg.arg1 = ++mPendingRadioPowerOffAfterDataOffTag; 546 if (sendMessageDelayed(msg, 30000)) { 547 if (DBG) log("Wait upto 30s for data to disconnect, then turn off radio."); 548 mPendingRadioPowerOffAfterDataOff = true; 549 } else { 550 log("Cannot send delayed Msg, turn off radio right away."); 551 hangupAndPowerOff(); 552 } 553 } 554 } 555 } 556 } 557 558 /** 559 * process the pending request to turn radio off after data is disconnected 560 * 561 * return true if there is pending request to process; false otherwise. 562 */ 563 public boolean processPendingRadioPowerOffAfterDataOff() { 564 synchronized(this) { 565 if (mPendingRadioPowerOffAfterDataOff) { 566 if (DBG) log("Process pending request to turn radio off."); 567 mPendingRadioPowerOffAfterDataOffTag += 1; 568 hangupAndPowerOff(); 569 mPendingRadioPowerOffAfterDataOff = false; 570 return true; 571 } 572 return false; 573 } 574 } 575 576 /** 577 * send signal-strength-changed notification if changed Called both for 578 * solicited and unsolicited signal strength updates 579 * 580 * @return true if the signal strength changed and a notification was sent. 581 */ 582 protected boolean onSignalStrengthResult(AsyncResult ar, boolean isGsm) { 583 SignalStrength oldSignalStrength = mSignalStrength; 584 585 // This signal is used for both voice and data radio signal so parse 586 // all fields 587 588 if ((ar.exception == null) && (ar.result != null)) { 589 mSignalStrength = (SignalStrength) ar.result; 590 mSignalStrength.validateInput(); 591 mSignalStrength.setGsm(isGsm); 592 } else { 593 log("onSignalStrengthResult() Exception from RIL : " + ar.exception); 594 mSignalStrength = new SignalStrength(isGsm); 595 } 596 597 return notifySignalStrength(); 598 } 599 600 /** 601 * Hang up all voice call and turn off radio. Implemented by derived class. 602 */ 603 protected abstract void hangupAndPowerOff(); 604 605 /** Cancel a pending (if any) pollState() operation */ 606 protected void cancelPollState() { 607 // This will effectively cancel the rest of the poll requests. 608 mPollingContext = new int[1]; 609 } 610 611 /** 612 * Return true if time zone needs fixing. 613 * 614 * @param phoneBase 615 * @param operatorNumeric 616 * @param prevOperatorNumeric 617 * @param needToFixTimeZone 618 * @return true if time zone needs to be fixed 619 */ 620 protected boolean shouldFixTimeZoneNow(PhoneBase phoneBase, String operatorNumeric, 621 String prevOperatorNumeric, boolean needToFixTimeZone) { 622 // Return false if the mcc isn't valid as we don't know where we are. 623 // Return true if we have an IccCard and the mcc changed or we 624 // need to fix it because when the NITZ time came in we didn't 625 // know the country code. 626 627 // If mcc is invalid then we'll return false 628 int mcc; 629 try { 630 mcc = Integer.parseInt(operatorNumeric.substring(0, 3)); 631 } catch (Exception e) { 632 if (DBG) { 633 log("shouldFixTimeZoneNow: no mcc, operatorNumeric=" + operatorNumeric + 634 " retVal=false"); 635 } 636 return false; 637 } 638 639 // If prevMcc is invalid will make it different from mcc 640 // so we'll return true if the card exists. 641 int prevMcc; 642 try { 643 prevMcc = Integer.parseInt(prevOperatorNumeric.substring(0, 3)); 644 } catch (Exception e) { 645 prevMcc = mcc + 1; 646 } 647 648 // Determine if the Icc card exists 649 boolean iccCardExist = false; 650 if (mUiccApplcation != null) { 651 iccCardExist = mUiccApplcation.getState() != AppState.APPSTATE_UNKNOWN; 652 } 653 654 // Determine retVal 655 boolean retVal = ((iccCardExist && (mcc != prevMcc)) || needToFixTimeZone); 656 if (DBG) { 657 long ctm = System.currentTimeMillis(); 658 log("shouldFixTimeZoneNow: retVal=" + retVal + 659 " iccCardExist=" + iccCardExist + 660 " operatorNumeric=" + operatorNumeric + " mcc=" + mcc + 661 " prevOperatorNumeric=" + prevOperatorNumeric + " prevMcc=" + prevMcc + 662 " needToFixTimeZone=" + needToFixTimeZone + 663 " ltod=" + TimeUtils.logTimeOfDay(ctm)); 664 } 665 return retVal; 666 } 667 668 /** 669 * @return all available cell information or null if none. 670 */ 671 public List<CellInfo> getAllCellInfo() { 672 CellInfoResult result = new CellInfoResult(); 673 if (VDBG) log("SST.getAllCellInfo(): E"); 674 int ver = mCi.getRilVersion(); 675 if (ver >= 8) { 676 if (isCallerOnDifferentThread()) { 677 if ((SystemClock.elapsedRealtime() - mLastCellInfoListTime) 678 > LAST_CELL_INFO_LIST_MAX_AGE_MS) { 679 Message msg = obtainMessage(EVENT_GET_CELL_INFO_LIST, result); 680 synchronized(result.lockObj) { 681 mCi.getCellInfoList(msg); 682 try { 683 result.lockObj.wait(); 684 } catch (InterruptedException e) { 685 e.printStackTrace(); 686 result.list = null; 687 } 688 } 689 } else { 690 if (DBG) log("SST.getAllCellInfo(): return last, back to back calls"); 691 result.list = mLastCellInfoList; 692 } 693 } else { 694 if (DBG) log("SST.getAllCellInfo(): return last, same thread can't block"); 695 result.list = mLastCellInfoList; 696 } 697 } else { 698 if (DBG) log("SST.getAllCellInfo(): not implemented"); 699 result.list = null; 700 } 701 if (DBG) { 702 if (result.list != null) { 703 log("SST.getAllCellInfo(): X size=" + result.list.size() 704 + " list=" + result.list); 705 } else { 706 log("SST.getAllCellInfo(): X size=0 list=null"); 707 } 708 } 709 return result.list; 710 } 711 712 /** 713 * @return signal strength 714 */ 715 public SignalStrength getSignalStrength() { 716 synchronized(mCellInfo) { 717 return mSignalStrength; 718 } 719 } 720 721 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 722 pw.println("ServiceStateTracker:"); 723 pw.println(" mSS=" + mSS); 724 pw.println(" mNewSS=" + mNewSS); 725 pw.println(" mCellInfo=" + mCellInfo); 726 pw.println(" mRestrictedState=" + mRestrictedState); 727 pw.println(" mPollingContext=" + mPollingContext); 728 pw.println(" mDesiredPowerState=" + mDesiredPowerState); 729 pw.println(" mDontPollSignalStrength=" + mDontPollSignalStrength); 730 pw.println(" mPendingRadioPowerOffAfterDataOff=" + mPendingRadioPowerOffAfterDataOff); 731 pw.println(" mPendingRadioPowerOffAfterDataOffTag=" + mPendingRadioPowerOffAfterDataOffTag); 732 } 733 734 /** 735 * Verifies the current thread is the same as the thread originally 736 * used in the initialization of this instance. Throws RuntimeException 737 * if not. 738 * 739 * @exception RuntimeException if the current thread is not 740 * the thread that originally obtained this PhoneBase instance. 741 */ 742 protected void checkCorrectThread() { 743 if (Thread.currentThread() != getLooper().getThread()) { 744 throw new RuntimeException( 745 "ServiceStateTracker must be used from within one thread"); 746 } 747 } 748 749 protected boolean isCallerOnDifferentThread() { 750 boolean value = Thread.currentThread() != getLooper().getThread(); 751 if (VDBG) log("isCallerOnDifferentThread: " + value); 752 return value; 753 } 754 } 755
