xref: /frameworks/opt/telephony/src/java/com/android/internal/telephony/ServiceStateTracker.java

/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.internal.telephony;

import android.app.AlarmManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.os.AsyncResult;
import android.os.BaseBundle;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.PersistableBundle;
import android.os.PowerManager;
import android.os.Registrant;
import android.os.RegistrantList;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.preference.PreferenceManager;
import android.provider.Settings;
import android.telephony.CarrierConfigManager;
import android.telephony.CellIdentityGsm;
import android.telephony.CellIdentityLte;
import android.telephony.CellIdentityWcdma;
import android.telephony.CellInfo;
import android.telephony.CellInfoCdma;
import android.telephony.CellInfoGsm;
import android.telephony.CellInfoLte;
import android.telephony.CellInfoWcdma;
import android.telephony.CellLocation;
import android.telephony.CellSignalStrengthLte;
import android.telephony.Rlog;
import android.telephony.ServiceState;
import android.telephony.SignalStrength;
import android.telephony.SubscriptionManager;
import android.telephony.SubscriptionManager.OnSubscriptionsChangedListener;
import android.telephony.TelephonyManager;
import android.telephony.cdma.CdmaCellLocation;
import android.telephony.gsm.GsmCellLocation;
import android.text.TextUtils;
import android.util.EventLog;
import android.util.LocalLog;
import android.util.Pair;
import android.util.TimeUtils;

import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
import java.util.concurrent.atomic.AtomicInteger;

import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.telephony.cdma.CdmaSubscriptionSourceManager;
import com.android.internal.telephony.cdma.EriInfo;
import com.android.internal.telephony.dataconnection.DcTracker;
import com.android.internal.telephony.metrics.TelephonyMetrics;
import com.android.internal.telephony.uicc.IccCardApplicationStatus.AppState;
import com.android.internal.telephony.uicc.IccRecords;
import com.android.internal.telephony.uicc.RuimRecords;
import com.android.internal.telephony.uicc.SIMRecords;
import com.android.internal.telephony.uicc.UiccCardApplication;
import com.android.internal.telephony.uicc.UiccController;
import com.android.internal.util.IndentingPrintWriter;

/**
 * {@hide}
 */
public class ServiceStateTracker extends Handler {
    private static final String LOG_TAG = "SST";
    private static final boolean DBG = true;
    private static final boolean VDBG = false;  // STOPSHIP if true

    private static final String PROP_FORCE_ROAMING = "telephony.test.forceRoaming";

    private CommandsInterface mCi;
    private UiccController mUiccController = null;
    private UiccCardApplication mUiccApplcation = null;
    private IccRecords mIccRecords = null;

    private boolean mVoiceCapable;

    public ServiceState mSS;
    private ServiceState mNewSS;

    private static final long LAST_CELL_INFO_LIST_MAX_AGE_MS = 2000;
    private long mLastCellInfoListTime;
    private List<CellInfo> mLastCellInfoList = null;

    private SignalStrength mSignalStrength;

    // TODO - this should not be public, right now used externally GsmConnetion.
    public RestrictedState mRestrictedState;

    /* The otaspMode passed to PhoneStateListener#onOtaspChanged */
    static public final int OTASP_UNINITIALIZED = 0;
    static public final int OTASP_UNKNOWN = 1;
    static public final int OTASP_NEEDED = 2;
    static public final int OTASP_NOT_NEEDED = 3;
    /**
     * OtaUtil has conflict enum 4: OtaUtils.OTASP_FAILURE_SPC_RETRIES
     */
    static public final int OTASP_SIM_UNPROVISIONED = 5;

    /**
     * A unique identifier to track requests associated with a poll
     * and ignore stale responses.  The value is a count-down of
     * expected responses in this pollingContext.
     */
    private int[] mPollingContext;
    private boolean mDesiredPowerState;

    /**
     * By default, strength polling is enabled.  However, if we're
     * getting unsolicited signal strength updates from the radio, set
     * value to true and don't bother polling any more.
     */
    private boolean mDontPollSignalStrength = false;

    private RegistrantList mVoiceRoamingOnRegistrants = new RegistrantList();
    private RegistrantList mVoiceRoamingOffRegistrants = new RegistrantList();
    private RegistrantList mDataRoamingOnRegistrants = new RegistrantList();
    private RegistrantList mDataRoamingOffRegistrants = new RegistrantList();
    protected RegistrantList mAttachedRegistrants = new RegistrantList();
    protected RegistrantList mDetachedRegistrants = new RegistrantList();
    private RegistrantList mDataRegStateOrRatChangedRegistrants = new RegistrantList();
    private RegistrantList mNetworkAttachedRegistrants = new RegistrantList();
    private RegistrantList mPsRestrictEnabledRegistrants = new RegistrantList();
    private RegistrantList mPsRestrictDisabledRegistrants = new RegistrantList();

    /* Radio power off pending flag and tag counter */
    private boolean mPendingRadioPowerOffAfterDataOff = false;
    private int mPendingRadioPowerOffAfterDataOffTag = 0;

    /** Signal strength poll rate. */
    private static final int POLL_PERIOD_MILLIS = 20 * 1000;

    /** Waiting period before recheck gprs and voice registration. */
    public static final int DEFAULT_GPRS_CHECK_PERIOD_MILLIS = 60 * 1000;

    /** GSM events */
    protected static final int EVENT_RADIO_STATE_CHANGED               = 1;
    protected static final int EVENT_NETWORK_STATE_CHANGED             = 2;
    protected static final int EVENT_GET_SIGNAL_STRENGTH               = 3;
    protected static final int EVENT_POLL_STATE_REGISTRATION           = 4;
    protected static final int EVENT_POLL_STATE_GPRS                   = 5;
    protected static final int EVENT_POLL_STATE_OPERATOR               = 6;
    protected static final int EVENT_POLL_SIGNAL_STRENGTH              = 10;
    protected static final int EVENT_NITZ_TIME                         = 11;
    protected static final int EVENT_SIGNAL_STRENGTH_UPDATE            = 12;
    protected static final int EVENT_RADIO_AVAILABLE                   = 13;
    protected static final int EVENT_POLL_STATE_NETWORK_SELECTION_MODE = 14;
    protected static final int EVENT_GET_LOC_DONE                      = 15;
    protected static final int EVENT_SIM_RECORDS_LOADED                = 16;
    protected static final int EVENT_SIM_READY                         = 17;
    protected static final int EVENT_LOCATION_UPDATES_ENABLED          = 18;
    protected static final int EVENT_GET_PREFERRED_NETWORK_TYPE        = 19;
    protected static final int EVENT_SET_PREFERRED_NETWORK_TYPE        = 20;
    protected static final int EVENT_RESET_PREFERRED_NETWORK_TYPE      = 21;
    protected static final int EVENT_CHECK_REPORT_GPRS                 = 22;
    protected static final int EVENT_RESTRICTED_STATE_CHANGED          = 23;

    /** CDMA events */
    protected static final int EVENT_RUIM_READY                        = 26;
    protected static final int EVENT_RUIM_RECORDS_LOADED               = 27;
    protected static final int EVENT_POLL_STATE_CDMA_SUBSCRIPTION      = 34;
    protected static final int EVENT_NV_READY                          = 35;
    protected static final int EVENT_ERI_FILE_LOADED                   = 36;
    protected static final int EVENT_OTA_PROVISION_STATUS_CHANGE       = 37;
    protected static final int EVENT_SET_RADIO_POWER_OFF               = 38;
    protected static final int EVENT_CDMA_SUBSCRIPTION_SOURCE_CHANGED  = 39;
    protected static final int EVENT_CDMA_PRL_VERSION_CHANGED          = 40;

    protected static final int EVENT_RADIO_ON                          = 41;
    public    static final int EVENT_ICC_CHANGED                       = 42;
    protected static final int EVENT_GET_CELL_INFO_LIST                = 43;
    protected static final int EVENT_UNSOL_CELL_INFO_LIST              = 44;
    protected static final int EVENT_CHANGE_IMS_STATE                  = 45;
    protected static final int EVENT_IMS_STATE_CHANGED                 = 46;
    protected static final int EVENT_IMS_STATE_DONE                    = 47;
    protected static final int EVENT_IMS_CAPABILITY_CHANGED            = 48;
    protected static final int EVENT_ALL_DATA_DISCONNECTED             = 49;
    protected static final int EVENT_PHONE_TYPE_SWITCHED               = 50;

    protected static final String TIMEZONE_PROPERTY = "persist.sys.timezone";

    /**
     * List of ISO codes for countries that can have an offset of
     * GMT+0 when not in daylight savings time.  This ignores some
     * small places such as the Canary Islands (Spain) and
     * Danmarkshavn (Denmark).  The list must be sorted by code.
    */
    protected static final String[] GMT_COUNTRY_CODES = {
        "bf", // Burkina Faso
        "ci", // Cote d'Ivoire
        "eh", // Western Sahara
        "fo", // Faroe Islands, Denmark
        "gb", // United Kingdom of Great Britain and Northern Ireland
        "gh", // Ghana
        "gm", // Gambia
        "gn", // Guinea
        "gw", // Guinea Bissau
        "ie", // Ireland
        "lr", // Liberia
        "is", // Iceland
        "ma", // Morocco
        "ml", // Mali
        "mr", // Mauritania
        "pt", // Portugal
        "sl", // Sierra Leone
        "sn", // Senegal
        "st", // Sao Tome and Principe
        "tg", // Togo
    };

    private class CellInfoResult {
        List<CellInfo> list;
        Object lockObj = new Object();
    }

    /** Reason for registration denial. */
    protected static final String REGISTRATION_DENIED_GEN  = "General";
    protected static final String REGISTRATION_DENIED_AUTH = "Authentication Failure";

    private boolean mImsRegistrationOnOff = false;
    private boolean mAlarmSwitch = false;
    /** Radio is disabled by carrier. Radio power will not be override if this field is set */
    private boolean mRadioDisabledByCarrier = false;
    private PendingIntent mRadioOffIntent = null;
    private static final String ACTION_RADIO_OFF = "android.intent.action.ACTION_RADIO_OFF";
    private boolean mPowerOffDelayNeed = true;
    private boolean mDeviceShuttingDown = false;
    /** Keep track of SPN display rules, so we only broadcast intent if something changes. */
    private boolean mSpnUpdatePending = false;
    private String mCurSpn = null;
    private String mCurDataSpn = null;
    private String mCurPlmn = null;
    private boolean mCurShowPlmn = false;
    private boolean mCurShowSpn = false;
    private int mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;

    private boolean mImsRegistered = false;

    private SubscriptionManager mSubscriptionManager;
    private SubscriptionController mSubscriptionController;
    private final SstSubscriptionsChangedListener mOnSubscriptionsChangedListener =
        new SstSubscriptionsChangedListener();


    private final RatRatcheter mRatRatcheter;

    private final LocalLog mRoamingLog = new LocalLog(10);
    private final LocalLog mAttachLog = new LocalLog(10);
    private final LocalLog mPhoneTypeLog = new LocalLog(10);
    private final LocalLog mRatLog = new LocalLog(20);

    private class SstSubscriptionsChangedListener extends OnSubscriptionsChangedListener {
        public final AtomicInteger mPreviousSubId =
                new AtomicInteger(SubscriptionManager.INVALID_SUBSCRIPTION_ID);

        /**
         * Callback invoked when there is any change to any SubscriptionInfo. Typically
         * this method would invoke {@link SubscriptionManager#getActiveSubscriptionInfoList}
         */
        @Override
        public void onSubscriptionsChanged() {
            if (DBG) log("SubscriptionListener.onSubscriptionInfoChanged");
            // Set the network type, in case the radio does not restore it.
            int subId = mPhone.getSubId();
            if (mPreviousSubId.getAndSet(subId) != subId) {
                if (SubscriptionManager.isValidSubscriptionId(subId)) {
                    Context context = mPhone.getContext();

                    mPhone.notifyPhoneStateChanged();
                    mPhone.notifyCallForwardingIndicator();

                    boolean restoreSelection = !context.getResources().getBoolean(
                            com.android.internal.R.bool.skip_restoring_network_selection);
                    mPhone.sendSubscriptionSettings(restoreSelection);

                    mPhone.setSystemProperty(TelephonyProperties.PROPERTY_DATA_NETWORK_TYPE,
                            ServiceState.rilRadioTechnologyToString(
                                    mSS.getRilDataRadioTechnology()));

                    if (mSpnUpdatePending) {
                        mSubscriptionController.setPlmnSpn(mPhone.getPhoneId(), mCurShowPlmn,
                                mCurPlmn, mCurShowSpn, mCurSpn);
                        mSpnUpdatePending = false;
                    }

                    // Remove old network selection sharedPreferences since SP key names are now
                    // changed to include subId. This will be done only once when upgrading from an
                    // older build that did not include subId in the names.
                    SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(
                            context);
                    String oldNetworkSelection = sp.getString(
                            Phone.NETWORK_SELECTION_KEY, "");
                    String oldNetworkSelectionName = sp.getString(
                            Phone.NETWORK_SELECTION_NAME_KEY, "");
                    String oldNetworkSelectionShort = sp.getString(
                            Phone.NETWORK_SELECTION_SHORT_KEY, "");
                    if (!TextUtils.isEmpty(oldNetworkSelection) ||
                            !TextUtils.isEmpty(oldNetworkSelectionName) ||
                            !TextUtils.isEmpty(oldNetworkSelectionShort)) {
                        SharedPreferences.Editor editor = sp.edit();
                        editor.putString(Phone.NETWORK_SELECTION_KEY + subId,
                                oldNetworkSelection);
                        editor.putString(Phone.NETWORK_SELECTION_NAME_KEY + subId,
                                oldNetworkSelectionName);
                        editor.putString(Phone.NETWORK_SELECTION_SHORT_KEY + subId,
                                oldNetworkSelectionShort);
                        editor.remove(Phone.NETWORK_SELECTION_KEY);
                        editor.remove(Phone.NETWORK_SELECTION_NAME_KEY);
                        editor.remove(Phone.NETWORK_SELECTION_SHORT_KEY);
                        editor.commit();
                    }

                    // Once sub id becomes valid, we need to update the service provider name
                    // displayed on the UI again. The old SPN update intents sent to
                    // MobileSignalController earlier were actually ignored due to invalid sub id.
                    updateSpnDisplay();
                }
                // update voicemail count and notify message waiting changed
                mPhone.updateVoiceMail();
            }
        }
    };

    //Common
    private GsmCdmaPhone mPhone;
    public CellLocation mCellLoc;
    private CellLocation mNewCellLoc;
    public static final int MS_PER_HOUR = 60 * 60 * 1000;
    /* Time stamp after 19 January 2038 is not supported under 32 bit */
    private static final int MAX_NITZ_YEAR = 2037;
    /**
     * Sometimes we get the NITZ time before we know what country we
     * are in. Keep the time zone information from the NITZ string so
     * we can fix the time zone once know the country.
     */
    private boolean mNeedFixZoneAfterNitz = false;
    private int mZoneOffset;
    private boolean mZoneDst;
    private long mZoneTime;
    private boolean mGotCountryCode = false;
    private String mSavedTimeZone;
    private long mSavedTime;
    private long mSavedAtTime;
    /** Wake lock used while setting time of day. */
    private PowerManager.WakeLock mWakeLock;
    public static final String WAKELOCK_TAG = "ServiceStateTracker";
    private ContentResolver mCr;
    private ContentObserver mAutoTimeObserver = new ContentObserver(new Handler()) {
        @Override
        public void onChange(boolean selfChange) {
            Rlog.i(LOG_TAG, "Auto time state changed");
            revertToNitzTime();
        }
    };

    private ContentObserver mAutoTimeZoneObserver = new ContentObserver(new Handler()) {
        @Override
        public void onChange(boolean selfChange) {
            Rlog.i(LOG_TAG, "Auto time zone state changed");
            revertToNitzTimeZone();
        }
    };

    //GSM
    private int mPreferredNetworkType;
    private int mMaxDataCalls = 1;
    private int mNewMaxDataCalls = 1;
    private int mReasonDataDenied = -1;
    private int mNewReasonDataDenied = -1;
    /**
     * GSM roaming status solely based on TS 27.007 7.2 CREG. Only used by
     * handlePollStateResult to store CREG roaming result.
     */
    private boolean mGsmRoaming = false;
    /**
     * Data roaming status solely based on TS 27.007 10.1.19 CGREG. Only used by
     * handlePollStateResult to store CGREG roaming result.
     */
    private boolean mDataRoaming = false;
    /**
     * Mark when service state is in emergency call only mode
     */
    private boolean mEmergencyOnly = false;
    /** Boolean is true is setTimeFromNITZString was called */
    private boolean mNitzUpdatedTime = false;
    /** Started the recheck process after finding gprs should registered but not. */
    private boolean mStartedGprsRegCheck;
    /** Already sent the event-log for no gprs register. */
    private boolean mReportedGprsNoReg;
    /**
     * The Notification object given to the NotificationManager.
     */
    private Notification mNotification;
    /** Notification type. */
    public static final int PS_ENABLED = 1001;            // Access Control blocks data service
    public static final int PS_DISABLED = 1002;           // Access Control enables data service
    public static final int CS_ENABLED = 1003;            // Access Control blocks all voice/sms service
    public static final int CS_DISABLED = 1004;           // Access Control enables all voice/sms service
    public static final int CS_NORMAL_ENABLED = 1005;     // Access Control blocks normal voice/sms service
    public static final int CS_EMERGENCY_ENABLED = 1006;  // Access Control blocks emergency call service
    /** Notification id. */
    public static final int PS_NOTIFICATION = 888;  // Id to update and cancel PS restricted
    public static final int CS_NOTIFICATION = 999;  // Id to update and cancel CS restricted
    private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (!mPhone.isPhoneTypeGsm()) {
                loge("Ignoring intent " + intent + " received on CDMA phone");
                return;
            }

            if (intent.getAction().equals(Intent.ACTION_LOCALE_CHANGED)) {
                // update emergency string whenever locale changed
                updateSpnDisplay();
            } else if (intent.getAction().equals(ACTION_RADIO_OFF)) {
                mAlarmSwitch = false;
                DcTracker dcTracker = mPhone.mDcTracker;
                powerOffRadioSafely(dcTracker);
            }
        }
    };

    //CDMA
    // Min values used to by getOtasp()
    public static final String UNACTIVATED_MIN2_VALUE = "000000";
    public static final String UNACTIVATED_MIN_VALUE = "1111110111";
    // Current Otasp value
    private int mCurrentOtaspMode = OTASP_UNINITIALIZED;
    /** if time between NITZ updates is less than mNitzUpdateSpacing the update may be ignored. */
    public static final int NITZ_UPDATE_SPACING_DEFAULT = 1000 * 60 * 10;
    private int mNitzUpdateSpacing = SystemProperties.getInt("ro.nitz_update_spacing",
            NITZ_UPDATE_SPACING_DEFAULT);
    /** If mNitzUpdateSpacing hasn't been exceeded but update is > mNitzUpdate do the update */
    public static final int NITZ_UPDATE_DIFF_DEFAULT = 2000;
    private int mNitzUpdateDiff = SystemProperties.getInt("ro.nitz_update_diff",
            NITZ_UPDATE_DIFF_DEFAULT);
    private int mRoamingIndicator;
    private boolean mIsInPrl;
    private int mDefaultRoamingIndicator;
    /**
     * Initially assume no data connection.
     */
    private int mRegistrationState = -1;
    private RegistrantList mCdmaForSubscriptionInfoReadyRegistrants = new RegistrantList();
    private String mMdn;
    private int mHomeSystemId[] = null;
    private int mHomeNetworkId[] = null;
    private String mMin;
    private String mPrlVersion;
    private boolean mIsMinInfoReady = false;
    private boolean mIsEriTextLoaded = false;
    private boolean mIsSubscriptionFromRuim = false;
    private CdmaSubscriptionSourceManager mCdmaSSM;
    public static final String INVALID_MCC = "000";
    public static final String DEFAULT_MNC = "00";
    private HbpcdUtils mHbpcdUtils = null;
    /* Used only for debugging purposes. */
    private String mRegistrationDeniedReason;
    private String mCurrentCarrier = null;

    public ServiceStateTracker(GsmCdmaPhone phone, CommandsInterface ci) {
        mPhone = phone;
        mCi = ci;

        mRatRatcheter = new RatRatcheter(mPhone);
        mVoiceCapable = mPhone.getContext().getResources().getBoolean(
                com.android.internal.R.bool.config_voice_capable);
        mUiccController = UiccController.getInstance();

        mUiccController.registerForIccChanged(this, EVENT_ICC_CHANGED, null);
        mCi.setOnSignalStrengthUpdate(this, EVENT_SIGNAL_STRENGTH_UPDATE, null);
        mCi.registerForCellInfoList(this, EVENT_UNSOL_CELL_INFO_LIST, null);

        mSubscriptionController = SubscriptionController.getInstance();
        mSubscriptionManager = SubscriptionManager.from(phone.getContext());
        mSubscriptionManager
                .addOnSubscriptionsChangedListener(mOnSubscriptionsChangedListener);

        mCi.registerForImsNetworkStateChanged(this, EVENT_IMS_STATE_CHANGED, null);

        PowerManager powerManager =
                (PowerManager)phone.getContext().getSystemService(Context.POWER_SERVICE);
        mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKELOCK_TAG);

        mCi.registerForRadioStateChanged(this, EVENT_RADIO_STATE_CHANGED, null);
        mCi.registerForVoiceNetworkStateChanged(this, EVENT_NETWORK_STATE_CHANGED, null);
        mCi.setOnNITZTime(this, EVENT_NITZ_TIME, null);

        mCr = phone.getContext().getContentResolver();
        // system setting property AIRPLANE_MODE_ON is set in Settings.
        int airplaneMode = Settings.Global.getInt(mCr, Settings.Global.AIRPLANE_MODE_ON, 0);
        int enableCellularOnBoot = Settings.Global.getInt(mCr,
                Settings.Global.ENABLE_CELLULAR_ON_BOOT, 1);
        mDesiredPowerState = (enableCellularOnBoot > 0) && ! (airplaneMode > 0);

        mCr.registerContentObserver(
                Settings.Global.getUriFor(Settings.Global.AUTO_TIME), true,
                mAutoTimeObserver);
        mCr.registerContentObserver(
                Settings.Global.getUriFor(Settings.Global.AUTO_TIME_ZONE), true,
                mAutoTimeZoneObserver);
        setSignalStrengthDefaultValues();

        // Monitor locale change
        Context context = mPhone.getContext();
        IntentFilter filter = new IntentFilter();
        filter.addAction(Intent.ACTION_LOCALE_CHANGED);
        context.registerReceiver(mIntentReceiver, filter);
        filter = new IntentFilter();
        filter.addAction(ACTION_RADIO_OFF);
        context.registerReceiver(mIntentReceiver, filter);

        mPhone.notifyOtaspChanged(OTASP_UNINITIALIZED);

        updatePhoneType();
    }

    @VisibleForTesting
    public void updatePhoneType() {
        mSS = new ServiceState();
        mNewSS = new ServiceState();
        mLastCellInfoListTime = 0;
        mLastCellInfoList = null;
        mSignalStrength = new SignalStrength();
        mRestrictedState = new RestrictedState();
        mStartedGprsRegCheck = false;
        mReportedGprsNoReg = false;
        mMdn = null;
        mMin = null;
        mPrlVersion = null;
        mIsMinInfoReady = false;
        mNitzUpdatedTime = false;

        //cancel any pending pollstate request on voice tech switching
        cancelPollState();

        if (mPhone.isPhoneTypeGsm()) {
            //clear CDMA registrations first
            if (mCdmaSSM != null) {
                mCdmaSSM.dispose(this);
            }

            mCi.unregisterForCdmaPrlChanged(this);
            mPhone.unregisterForEriFileLoaded(this);
            mCi.unregisterForCdmaOtaProvision(this);
            mPhone.unregisterForSimRecordsLoaded(this);

            mCellLoc = new GsmCellLocation();
            mNewCellLoc = new GsmCellLocation();
            mCi.registerForAvailable(this, EVENT_RADIO_AVAILABLE, null);
            mCi.setOnRestrictedStateChanged(this, EVENT_RESTRICTED_STATE_CHANGED, null);
        } else {
            //clear GSM regsitrations first
            mCi.unregisterForAvailable(this);
            mCi.unSetOnRestrictedStateChanged(this);

            if (mPhone.isPhoneTypeCdmaLte()) {
                mPhone.registerForSimRecordsLoaded(this, EVENT_SIM_RECORDS_LOADED, null);
            }
            mCellLoc = new CdmaCellLocation();
            mNewCellLoc = new CdmaCellLocation();
            mCdmaSSM = CdmaSubscriptionSourceManager.getInstance(mPhone.getContext(), mCi, this,
                    EVENT_CDMA_SUBSCRIPTION_SOURCE_CHANGED, null);
            mIsSubscriptionFromRuim = (mCdmaSSM.getCdmaSubscriptionSource() ==
                    CdmaSubscriptionSourceManager.SUBSCRIPTION_FROM_RUIM);

            mCi.registerForCdmaPrlChanged(this, EVENT_CDMA_PRL_VERSION_CHANGED, null);
            mPhone.registerForEriFileLoaded(this, EVENT_ERI_FILE_LOADED, null);
            mCi.registerForCdmaOtaProvision(this, EVENT_OTA_PROVISION_STATUS_CHANGE, null);

            mHbpcdUtils = new HbpcdUtils(mPhone.getContext());
            // update OTASP state in case previously set by another service
            updateOtaspState();
        }

        // This should be done after the technology specific initializations above since it relies
        // on fields like mIsSubscriptionFromRuim (which is updated above)
        onUpdateIccAvailability();

        mPhone.setSystemProperty(TelephonyProperties.PROPERTY_DATA_NETWORK_TYPE,
                ServiceState.rilRadioTechnologyToString(ServiceState.RIL_RADIO_TECHNOLOGY_UNKNOWN));
        // Query signal strength from the modem after service tracker is created (i.e. boot up,
        // switching between GSM and CDMA phone), because the unsolicited signal strength
        // information might come late or even never come. This will get the accurate signal
        // strength information displayed on the UI.
        mCi.getSignalStrength(obtainMessage(EVENT_GET_SIGNAL_STRENGTH));
        sendMessage(obtainMessage(EVENT_PHONE_TYPE_SWITCHED));

        logPhoneTypeChange();

        // Tell everybody that we've thrown away state and are starting over with
        // empty, detached ServiceStates.
        mVoiceRoamingOffRegistrants.notifyRegistrants();
        mDataRoamingOffRegistrants.notifyRegistrants();
        mDetachedRegistrants.notifyRegistrants();
        notifyDataRegStateRilRadioTechnologyChanged();
    }

    @VisibleForTesting
    public void requestShutdown() {
        if (mDeviceShuttingDown == true) return;
        mDeviceShuttingDown = true;
        mDesiredPowerState = false;
        setPowerStateToDesired();
    }

    public void dispose() {
        mCi.unSetOnSignalStrengthUpdate(this);
        mUiccController.unregisterForIccChanged(this);
        mCi.unregisterForCellInfoList(this);
        mSubscriptionManager
            .removeOnSubscriptionsChangedListener(mOnSubscriptionsChangedListener);
        mCi.unregisterForImsNetworkStateChanged(this);
    }

    public boolean getDesiredPowerState() {
        return mDesiredPowerState;
    }
    public boolean getPowerStateFromCarrier() { return !mRadioDisabledByCarrier; }

    private SignalStrength mLastSignalStrength = null;
    protected boolean notifySignalStrength() {
        boolean notified = false;
        if (!mSignalStrength.equals(mLastSignalStrength)) {
            try {
                mPhone.notifySignalStrength();
                notified = true;
            } catch (NullPointerException ex) {
                loge("updateSignalStrength() Phone already destroyed: " + ex
                        + "SignalStrength not notified");
            }
        }
        return notified;
    }

    /**
     * Notify all mDataConnectionRatChangeRegistrants using an
     * AsyncResult in msg.obj where AsyncResult#result contains the
     * new RAT as an Integer Object.
     */
    protected void notifyDataRegStateRilRadioTechnologyChanged() {
        int rat = mSS.getRilDataRadioTechnology();
        int drs = mSS.getDataRegState();
        if (DBG) log("notifyDataRegStateRilRadioTechnologyChanged: drs=" + drs + " rat=" + rat);

        mPhone.setSystemProperty(TelephonyProperties.PROPERTY_DATA_NETWORK_TYPE,
                ServiceState.rilRadioTechnologyToString(rat));
        mDataRegStateOrRatChangedRegistrants.notifyResult(new Pair<Integer, Integer>(drs, rat));
    }

    /**
     * Some operators have been known to report registration failure
     * data only devices, to fix that use DataRegState.
     */
    protected void useDataRegStateForDataOnlyDevices() {
        if (mVoiceCapable == false) {
            if (DBG) {
                log("useDataRegStateForDataOnlyDevice: VoiceRegState=" + mNewSS.getVoiceRegState()
                    + " DataRegState=" + mNewSS.getDataRegState());
            }
            // TODO: Consider not lying and instead have callers know the difference.
            mNewSS.setVoiceRegState(mNewSS.getDataRegState());
        }
    }

    protected void updatePhoneObject() {
        if (mPhone.getContext().getResources().
                getBoolean(com.android.internal.R.bool.config_switch_phone_on_voice_reg_state_change)) {
            // If the phone is not registered on a network, no need to update.
            boolean isRegistered = mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE ||
                    mSS.getVoiceRegState() == ServiceState.STATE_EMERGENCY_ONLY;
            if (!isRegistered) {
                log("updatePhoneObject: Ignore update");
                return;
            }
            mPhone.updatePhoneObject(mSS.getRilVoiceRadioTechnology());
        }
    }

    /**
     * Registration point for combined roaming on of mobile voice
     * combined roaming is true when roaming is true and ONS differs SPN
     *
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForVoiceRoamingOn(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mVoiceRoamingOnRegistrants.add(r);

        if (mSS.getVoiceRoaming()) {
            r.notifyRegistrant();
        }
    }

    public void unregisterForVoiceRoamingOn(Handler h) {
        mVoiceRoamingOnRegistrants.remove(h);
    }

    /**
     * Registration point for roaming off of mobile voice
     * combined roaming is true when roaming is true and ONS differs SPN
     *
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForVoiceRoamingOff(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mVoiceRoamingOffRegistrants.add(r);

        if (!mSS.getVoiceRoaming()) {
            r.notifyRegistrant();
        }
    }

    public void unregisterForVoiceRoamingOff(Handler h) {
        mVoiceRoamingOffRegistrants.remove(h);
    }

    /**
     * Registration point for combined roaming on of mobile data
     * combined roaming is true when roaming is true and ONS differs SPN
     *
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForDataRoamingOn(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mDataRoamingOnRegistrants.add(r);

        if (mSS.getDataRoaming()) {
            r.notifyRegistrant();
        }
    }

    public void unregisterForDataRoamingOn(Handler h) {
        mDataRoamingOnRegistrants.remove(h);
    }

    /**
     * Registration point for roaming off of mobile data
     * combined roaming is true when roaming is true and ONS differs SPN
     *
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForDataRoamingOff(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mDataRoamingOffRegistrants.add(r);

        if (!mSS.getDataRoaming()) {
            r.notifyRegistrant();
        }
    }

    public void unregisterForDataRoamingOff(Handler h) {
        mDataRoamingOffRegistrants.remove(h);
    }

    /**
     * Re-register network by toggling preferred network type.
     * This is a work-around to deregister and register network since there is
     * no ril api to set COPS=2 (deregister) only.
     *
     * @param onComplete is dispatched when this is complete.  it will be
     * an AsyncResult, and onComplete.obj.exception will be non-null
     * on failure.
     */
    public void reRegisterNetwork(Message onComplete) {
        mCi.getPreferredNetworkType(
                obtainMessage(EVENT_GET_PREFERRED_NETWORK_TYPE, onComplete));
    }

    public void
    setRadioPower(boolean power) {
        mDesiredPowerState = power;

        setPowerStateToDesired();
    }

    /**
     * Radio power set from carrier action. if set to false means carrier desire to turn radio off
     * and radio wont be re-enabled unless carrier explicitly turn it back on.
     * @param enable indicate if radio power is enabled or disabled from carrier action.
     */
    public void setRadioPowerFromCarrier(boolean enable) {
        mRadioDisabledByCarrier = !enable;
        setPowerStateToDesired();
    }

    /**
     * These two flags manage the behavior of the cell lock -- the
     * lock should be held if either flag is true.  The intention is
     * to allow temporary acquisition of the lock to get a single
     * update.  Such a lock grab and release can thus be made to not
     * interfere with more permanent lock holds -- in other words, the
     * lock will only be released if both flags are false, and so
     * releases by temporary users will only affect the lock state if
     * there is no continuous user.
     */
    private boolean mWantContinuousLocationUpdates;
    private boolean mWantSingleLocationUpdate;

    public void enableSingleLocationUpdate() {
        if (mWantSingleLocationUpdate || mWantContinuousLocationUpdates) return;
        mWantSingleLocationUpdate = true;
        mCi.setLocationUpdates(true, obtainMessage(EVENT_LOCATION_UPDATES_ENABLED));
    }

    public void enableLocationUpdates() {
        if (mWantSingleLocationUpdate || mWantContinuousLocationUpdates) return;
        mWantContinuousLocationUpdates = true;
        mCi.setLocationUpdates(true, obtainMessage(EVENT_LOCATION_UPDATES_ENABLED));
    }

    protected void disableSingleLocationUpdate() {
        mWantSingleLocationUpdate = false;
        if (!mWantSingleLocationUpdate && !mWantContinuousLocationUpdates) {
            mCi.setLocationUpdates(false, null);
        }
    }

    public void disableLocationUpdates() {
        mWantContinuousLocationUpdates = false;
        if (!mWantSingleLocationUpdate && !mWantContinuousLocationUpdates) {
            mCi.setLocationUpdates(false, null);
        }
    }

    @Override
    public void handleMessage(Message msg) {
        AsyncResult ar;
        int[] ints;
        Message message;
        switch (msg.what) {
            case EVENT_SET_RADIO_POWER_OFF:
                synchronized(this) {
                    if (mPendingRadioPowerOffAfterDataOff &&
                            (msg.arg1 == mPendingRadioPowerOffAfterDataOffTag)) {
                        if (DBG) log("EVENT_SET_RADIO_OFF, turn radio off now.");
                        hangupAndPowerOff();
                        mPendingRadioPowerOffAfterDataOffTag += 1;
                        mPendingRadioPowerOffAfterDataOff = false;
                    } else {
                        log("EVENT_SET_RADIO_OFF is stale arg1=" + msg.arg1 +
                                "!= tag=" + mPendingRadioPowerOffAfterDataOffTag);
                    }
                }
                break;

            case EVENT_ICC_CHANGED:
                onUpdateIccAvailability();
                break;

            case EVENT_GET_CELL_INFO_LIST: {
                ar = (AsyncResult) msg.obj;
                CellInfoResult result = (CellInfoResult) ar.userObj;
                synchronized(result.lockObj) {
                    if (ar.exception != null) {
                        log("EVENT_GET_CELL_INFO_LIST: error ret null, e=" + ar.exception);
                        result.list = null;
                    } else {
                        result.list = (List<CellInfo>) ar.result;

                        if (VDBG) {
                            log("EVENT_GET_CELL_INFO_LIST: size=" + result.list.size()
                                    + " list=" + result.list);
                        }
                    }
                    mLastCellInfoListTime = SystemClock.elapsedRealtime();
                    mLastCellInfoList = result.list;
                    result.lockObj.notify();
                }
                break;
            }

            case EVENT_UNSOL_CELL_INFO_LIST: {
                ar = (AsyncResult) msg.obj;
                if (ar.exception != null) {
                    log("EVENT_UNSOL_CELL_INFO_LIST: error ignoring, e=" + ar.exception);
                } else {
                    List<CellInfo> list = (List<CellInfo>) ar.result;
                    if (VDBG) {
                        log("EVENT_UNSOL_CELL_INFO_LIST: size=" + list.size() + " list=" + list);
                    }
                    mLastCellInfoListTime = SystemClock.elapsedRealtime();
                    mLastCellInfoList = list;
                    mPhone.notifyCellInfo(list);
                }
                break;
            }

            case  EVENT_IMS_STATE_CHANGED: // received unsol
                mCi.getImsRegistrationState(this.obtainMessage(EVENT_IMS_STATE_DONE));
                break;

            case EVENT_IMS_STATE_DONE:
                ar = (AsyncResult) msg.obj;
                if (ar.exception == null) {
                    int[] responseArray = (int[])ar.result;
                    mImsRegistered = (responseArray[0] == 1) ? true : false;
                }
                break;

            //GSM
            case EVENT_RADIO_AVAILABLE:
                //this is unnecessary
                //setPowerStateToDesired();
                break;

            case EVENT_SIM_READY:
                // Reset the mPreviousSubId so we treat a SIM power bounce
                // as a first boot.  See b/19194287
                mOnSubscriptionsChangedListener.mPreviousSubId.set(-1);
                pollState();
                // Signal strength polling stops when radio is off
                queueNextSignalStrengthPoll();
                break;

            case EVENT_RADIO_STATE_CHANGED:
            case EVENT_PHONE_TYPE_SWITCHED:
                if(!mPhone.isPhoneTypeGsm() &&
                        mCi.getRadioState() == CommandsInterface.RadioState.RADIO_ON) {
                    handleCdmaSubscriptionSource(mCdmaSSM.getCdmaSubscriptionSource());

                    // Signal strength polling stops when radio is off.
                    queueNextSignalStrengthPoll();
                }
                // This will do nothing in the 'radio not available' case
                setPowerStateToDesired();
                // These events are modem triggered, so pollState() needs to be forced
                modemTriggeredPollState();
                break;

            case EVENT_NETWORK_STATE_CHANGED:
                modemTriggeredPollState();
                break;

            case EVENT_GET_SIGNAL_STRENGTH:
                // This callback is called when signal strength is polled
                // all by itself

                if (!(mCi.getRadioState().isOn())) {
                    // Polling will continue when radio turns back on
                    return;
                }
                ar = (AsyncResult) msg.obj;
                onSignalStrengthResult(ar);
                queueNextSignalStrengthPoll();

                break;

            case EVENT_GET_LOC_DONE:
                ar = (AsyncResult) msg.obj;

                if (ar.exception == null) {
                    String states[] = (String[])ar.result;
                    if (mPhone.isPhoneTypeGsm()) {
                        int lac = -1;
                        int cid = -1;
                        if (states.length >= 3) {
                            try {
                                if (states[1] != null && states[1].length() > 0) {
                                    lac = Integer.parseInt(states[1], 16);
                                }
                                if (states[2] != null && states[2].length() > 0) {
                                    cid = Integer.parseInt(states[2], 16);
                                }
                            } catch (NumberFormatException ex) {
                                Rlog.w(LOG_TAG, "error parsing location: " + ex);
                            }
                        }
                        ((GsmCellLocation)mCellLoc).setLacAndCid(lac, cid);
                    } else {
                        int baseStationId = -1;
                        int baseStationLatitude = CdmaCellLocation.INVALID_LAT_LONG;
                        int baseStationLongitude = CdmaCellLocation.INVALID_LAT_LONG;
                        int systemId = -1;
                        int networkId = -1;

                        if (states.length > 9) {
                            try {
                                if (states[4] != null) {
                                    baseStationId = Integer.parseInt(states[4]);
                                }
                                if (states[5] != null) {
                                    baseStationLatitude = Integer.parseInt(states[5]);
                                }
                                if (states[6] != null) {
                                    baseStationLongitude = Integer.parseInt(states[6]);
                                }
                                // Some carriers only return lat-lngs of 0,0
                                if (baseStationLatitude == 0 && baseStationLongitude == 0) {
                                    baseStationLatitude  = CdmaCellLocation.INVALID_LAT_LONG;
                                    baseStationLongitude = CdmaCellLocation.INVALID_LAT_LONG;
                                }
                                if (states[8] != null) {
                                    systemId = Integer.parseInt(states[8]);
                                }
                                if (states[9] != null) {
                                    networkId = Integer.parseInt(states[9]);
                                }
                            } catch (NumberFormatException ex) {
                                loge("error parsing cell location data: " + ex);
                            }
                        }

                        ((CdmaCellLocation)mCellLoc).setCellLocationData(baseStationId,
                                baseStationLatitude, baseStationLongitude, systemId, networkId);
                    }
                    mPhone.notifyLocationChanged();
                }

                // Release any temporary cell lock, which could have been
                // acquired to allow a single-shot location update.
                disableSingleLocationUpdate();
                break;

            case EVENT_POLL_STATE_REGISTRATION:
            case EVENT_POLL_STATE_GPRS:
            case EVENT_POLL_STATE_OPERATOR:
                ar = (AsyncResult) msg.obj;
                handlePollStateResult(msg.what, ar);
                break;

            case EVENT_POLL_STATE_NETWORK_SELECTION_MODE:
                if (DBG) log("EVENT_POLL_STATE_NETWORK_SELECTION_MODE");
                ar = (AsyncResult) msg.obj;
                if (mPhone.isPhoneTypeGsm()) {
                    handlePollStateResult(msg.what, ar);
                } else {
                    if (ar.exception == null && ar.result != null) {
                        ints = (int[])ar.result;
                        if (ints[0] == 1) {  // Manual selection.
                            mPhone.setNetworkSelectionModeAutomatic(null);
                        }
                    } else {
                        log("Unable to getNetworkSelectionMode");
                    }
                }
                break;

            case EVENT_POLL_SIGNAL_STRENGTH:
                // Just poll signal strength...not part of pollState()

                mCi.getSignalStrength(obtainMessage(EVENT_GET_SIGNAL_STRENGTH));
                break;

            case EVENT_NITZ_TIME:
                ar = (AsyncResult) msg.obj;

                String nitzString = (String)((Object[])ar.result)[0];
                long nitzReceiveTime = ((Long)((Object[])ar.result)[1]).longValue();

                setTimeFromNITZString(nitzString, nitzReceiveTime);
                break;

            case EVENT_SIGNAL_STRENGTH_UPDATE:
                // This is a notification from CommandsInterface.setOnSignalStrengthUpdate

                ar = (AsyncResult) msg.obj;

                // The radio is telling us about signal strength changes
                // we don't have to ask it
                mDontPollSignalStrength = true;

                onSignalStrengthResult(ar);
                break;

            case EVENT_SIM_RECORDS_LOADED:
                log("EVENT_SIM_RECORDS_LOADED: what=" + msg.what);
                updatePhoneObject();
                updateOtaspState();
                if (mPhone.isPhoneTypeGsm()) {
                    updateSpnDisplay();
                }
                break;

            case EVENT_LOCATION_UPDATES_ENABLED:
                ar = (AsyncResult) msg.obj;

                if (ar.exception == null) {
                    mCi.getVoiceRegistrationState(obtainMessage(EVENT_GET_LOC_DONE, null));
                }
                break;

            case EVENT_SET_PREFERRED_NETWORK_TYPE:
                ar = (AsyncResult) msg.obj;
                // Don't care the result, only use for dereg network (COPS=2)
                message = obtainMessage(EVENT_RESET_PREFERRED_NETWORK_TYPE, ar.userObj);
                mCi.setPreferredNetworkType(mPreferredNetworkType, message);
                break;

            case EVENT_RESET_PREFERRED_NETWORK_TYPE:
                ar = (AsyncResult) msg.obj;
                if (ar.userObj != null) {
                    AsyncResult.forMessage(((Message) ar.userObj)).exception
                            = ar.exception;
                    ((Message) ar.userObj).sendToTarget();
                }
                break;

            case EVENT_GET_PREFERRED_NETWORK_TYPE:
                ar = (AsyncResult) msg.obj;

                if (ar.exception == null) {
                    mPreferredNetworkType = ((int[])ar.result)[0];
                } else {
                    mPreferredNetworkType = RILConstants.NETWORK_MODE_GLOBAL;
                }

                message = obtainMessage(EVENT_SET_PREFERRED_NETWORK_TYPE, ar.userObj);
                int toggledNetworkType = RILConstants.NETWORK_MODE_GLOBAL;

                mCi.setPreferredNetworkType(toggledNetworkType, message);
                break;

            case EVENT_CHECK_REPORT_GPRS:
                if (mPhone.isPhoneTypeGsm() && mSS != null &&
                        !isGprsConsistent(mSS.getDataRegState(), mSS.getVoiceRegState())) {

                    // Can't register data service while voice service is ok
                    // i.e. CREG is ok while CGREG is not
                    // possible a network or baseband side error
                    GsmCellLocation loc = ((GsmCellLocation)mPhone.getCellLocation());
                    EventLog.writeEvent(EventLogTags.DATA_NETWORK_REGISTRATION_FAIL,
                            mSS.getOperatorNumeric(), loc != null ? loc.getCid() : -1);
                    mReportedGprsNoReg = true;
                }
                mStartedGprsRegCheck = false;
                break;

            case EVENT_RESTRICTED_STATE_CHANGED:
                if (mPhone.isPhoneTypeGsm()) {
                    // This is a notification from
                    // CommandsInterface.setOnRestrictedStateChanged

                    if (DBG) log("EVENT_RESTRICTED_STATE_CHANGED");

                    ar = (AsyncResult) msg.obj;

                    onRestrictedStateChanged(ar);
                }
                break;

            case EVENT_ALL_DATA_DISCONNECTED:
                int dds = SubscriptionManager.getDefaultDataSubscriptionId();
                ProxyController.getInstance().unregisterForAllDataDisconnected(dds, this);
                synchronized(this) {
                    if (mPendingRadioPowerOffAfterDataOff) {
                        if (DBG) log("EVENT_ALL_DATA_DISCONNECTED, turn radio off now.");
                        hangupAndPowerOff();
                        mPendingRadioPowerOffAfterDataOff = false;
                    } else {
                        log("EVENT_ALL_DATA_DISCONNECTED is stale");
                    }
                }
                break;

            case EVENT_CHANGE_IMS_STATE:
                if (DBG) log("EVENT_CHANGE_IMS_STATE:");

                setPowerStateToDesired();
                break;

            case EVENT_IMS_CAPABILITY_CHANGED:
                if (DBG) log("EVENT_IMS_CAPABILITY_CHANGED");
                updateSpnDisplay();
                break;

            //CDMA
            case EVENT_CDMA_SUBSCRIPTION_SOURCE_CHANGED:
                handleCdmaSubscriptionSource(mCdmaSSM.getCdmaSubscriptionSource());
                break;

            case EVENT_RUIM_READY:
                if (mPhone.getLteOnCdmaMode() == PhoneConstants.LTE_ON_CDMA_TRUE) {
                    // Subscription will be read from SIM I/O
                    if (DBG) log("Receive EVENT_RUIM_READY");
                    pollState();
                } else {
                    if (DBG) log("Receive EVENT_RUIM_READY and Send Request getCDMASubscription.");
                    getSubscriptionInfoAndStartPollingThreads();
                }

                // Only support automatic selection mode in CDMA.
                mCi.getNetworkSelectionMode(obtainMessage(EVENT_POLL_STATE_NETWORK_SELECTION_MODE));

                break;

            case EVENT_NV_READY:
                updatePhoneObject();

                // Only support automatic selection mode in CDMA.
                mCi.getNetworkSelectionMode(obtainMessage(EVENT_POLL_STATE_NETWORK_SELECTION_MODE));

                // For Non-RUIM phones, the subscription information is stored in
                // Non Volatile. Here when Non-Volatile is ready, we can poll the CDMA
                // subscription info.
                getSubscriptionInfoAndStartPollingThreads();
                break;

            case EVENT_POLL_STATE_CDMA_SUBSCRIPTION: // Handle RIL_CDMA_SUBSCRIPTION
                if (!mPhone.isPhoneTypeGsm()) {
                    ar = (AsyncResult) msg.obj;

                    if (ar.exception == null) {
                        String cdmaSubscription[] = (String[]) ar.result;
                        if (cdmaSubscription != null && cdmaSubscription.length >= 5) {
                            mMdn = cdmaSubscription[0];
                            parseSidNid(cdmaSubscription[1], cdmaSubscription[2]);

                            mMin = cdmaSubscription[3];
                            mPrlVersion = cdmaSubscription[4];
                            if (DBG) log("GET_CDMA_SUBSCRIPTION: MDN=" + mMdn);

                            mIsMinInfoReady = true;

                            updateOtaspState();
                            // Notify apps subscription info is ready
                            notifyCdmaSubscriptionInfoReady();

                            if (!mIsSubscriptionFromRuim && mIccRecords != null) {
                                if (DBG) {
                                    log("GET_CDMA_SUBSCRIPTION set imsi in mIccRecords");
                                }
                                mIccRecords.setImsi(getImsi());
                            } else {
                                if (DBG) {
                                    log("GET_CDMA_SUBSCRIPTION either mIccRecords is null or NV " +
                                            "type device - not setting Imsi in mIccRecords");
                                }
                            }
                        } else {
                            if (DBG) {
                                log("GET_CDMA_SUBSCRIPTION: error parsing cdmaSubscription " +
                                        "params num=" + cdmaSubscription.length);
                            }
                        }
                    }
                }
                break;

            case EVENT_RUIM_RECORDS_LOADED:
                if (!mPhone.isPhoneTypeGsm()) {
                    log("EVENT_RUIM_RECORDS_LOADED: what=" + msg.what);
                    updatePhoneObject();
                    if (mPhone.isPhoneTypeCdma()) {
                        updateSpnDisplay();
                    } else {
                        RuimRecords ruim = (RuimRecords) mIccRecords;
                        if (ruim != null) {
                            if (ruim.isProvisioned()) {
                                mMdn = ruim.getMdn();
                                mMin = ruim.getMin();
                                parseSidNid(ruim.getSid(), ruim.getNid());
                                mPrlVersion = ruim.getPrlVersion();
                                mIsMinInfoReady = true;
                            }
                            updateOtaspState();
                            // Notify apps subscription info is ready
                            notifyCdmaSubscriptionInfoReady();
                        }
                        // SID/NID/PRL is loaded. Poll service state
                        // again to update to the roaming state with
                        // the latest variables.
                        pollState();
                    }
                }
                break;

            case EVENT_ERI_FILE_LOADED:
                // Repoll the state once the ERI file has been loaded.
                if (DBG) log("ERI file has been loaded, repolling.");
                pollState();
                break;

            case EVENT_OTA_PROVISION_STATUS_CHANGE:
                ar = (AsyncResult)msg.obj;
                if (ar.exception == null) {
                    ints = (int[]) ar.result;
                    int otaStatus = ints[0];
                    if (otaStatus == Phone.CDMA_OTA_PROVISION_STATUS_COMMITTED
                            || otaStatus == Phone.CDMA_OTA_PROVISION_STATUS_OTAPA_STOPPED) {
                        if (DBG) log("EVENT_OTA_PROVISION_STATUS_CHANGE: Complete, Reload MDN");
                        mCi.getCDMASubscription( obtainMessage(EVENT_POLL_STATE_CDMA_SUBSCRIPTION));
                    }
                }
                break;

            case EVENT_CDMA_PRL_VERSION_CHANGED:
                ar = (AsyncResult)msg.obj;
                if (ar.exception == null) {
                    ints = (int[]) ar.result;
                    mPrlVersion = Integer.toString(ints[0]);
                }
                break;

            default:
                log("Unhandled message with number: " + msg.what);
                break;
        }
    }

    protected boolean isSidsAllZeros() {
        if (mHomeSystemId != null) {
            for (int i=0; i < mHomeSystemId.length; i++) {
                if (mHomeSystemId[i] != 0) {
                    return false;
                }
            }
        }
        return true;
    }

    /**
     * Check whether a specified system ID that matches one of the home system IDs.
     */
    private boolean isHomeSid(int sid) {
        if (mHomeSystemId != null) {
            for (int i=0; i < mHomeSystemId.length; i++) {
                if (sid == mHomeSystemId[i]) {
                    return true;
                }
            }
        }
        return false;
    }

    public String getMdnNumber() {
        return mMdn;
    }

    public String getCdmaMin() {
        return mMin;
    }

    /** Returns null if NV is not yet ready */
    public String getPrlVersion() {
        return mPrlVersion;
    }

    /**
     * Returns IMSI as MCC + MNC + MIN
     */
    public String getImsi() {
        // TODO: When RUIM is enabled, IMSI will come from RUIM not build-time props.
        String operatorNumeric = ((TelephonyManager) mPhone.getContext().
                getSystemService(Context.TELEPHONY_SERVICE)).
                getSimOperatorNumericForPhone(mPhone.getPhoneId());

        if (!TextUtils.isEmpty(operatorNumeric) && getCdmaMin() != null) {
            return (operatorNumeric + getCdmaMin());
        } else {
            return null;
        }
    }

    /**
     * Check if subscription data has been assigned to mMin
     *
     * return true if MIN info is ready; false otherwise.
     */
    public boolean isMinInfoReady() {
        return mIsMinInfoReady;
    }

    /**
     * Returns OTASP_UNKNOWN, OTASP_UNINITIALIZED, OTASP_NEEDED or OTASP_NOT_NEEDED
     */
    public int getOtasp() {
        int provisioningState;
        // if sim is not loaded, return otasp uninitialized
        if(!mPhone.getIccRecordsLoaded()) {
            if(DBG) log("getOtasp: otasp uninitialized due to sim not loaded");
            return OTASP_UNINITIALIZED;
        }
        // if voice tech is Gsm, return otasp not needed
        if(mPhone.isPhoneTypeGsm()) {
            if(DBG) log("getOtasp: otasp not needed for GSM");
            return OTASP_NOT_NEEDED;
        }
        // for ruim, min is null means require otasp.
        if (mIsSubscriptionFromRuim && mMin == null) {
            return OTASP_NEEDED;
        }
        if (mMin == null || (mMin.length() < 6)) {
            if (DBG) log("getOtasp: bad mMin='" + mMin + "'");
            provisioningState = OTASP_UNKNOWN;
        } else {
            if ((mMin.equals(UNACTIVATED_MIN_VALUE)
                    || mMin.substring(0,6).equals(UNACTIVATED_MIN2_VALUE))
                    || SystemProperties.getBoolean("test_cdma_setup", false)) {
                provisioningState = OTASP_NEEDED;
            } else {
                provisioningState = OTASP_NOT_NEEDED;
            }
        }
        if (DBG) log("getOtasp: state=" + provisioningState);
        return provisioningState;
    }

    protected void parseSidNid (String sidStr, String nidStr) {
        if (sidStr != null) {
            String[] sid = sidStr.split(",");
            mHomeSystemId = new int[sid.length];
            for (int i = 0; i < sid.length; i++) {
                try {
                    mHomeSystemId[i] = Integer.parseInt(sid[i]);
                } catch (NumberFormatException ex) {
                    loge("error parsing system id: " + ex);
                }
            }
        }
        if (DBG) log("CDMA_SUBSCRIPTION: SID=" + sidStr);

        if (nidStr != null) {
            String[] nid = nidStr.split(",");
            mHomeNetworkId = new int[nid.length];
            for (int i = 0; i < nid.length; i++) {
                try {
                    mHomeNetworkId[i] = Integer.parseInt(nid[i]);
                } catch (NumberFormatException ex) {
                    loge("CDMA_SUBSCRIPTION: error parsing network id: " + ex);
                }
            }
        }
        if (DBG) log("CDMA_SUBSCRIPTION: NID=" + nidStr);
    }

    protected void updateOtaspState() {
        int otaspMode = getOtasp();
        int oldOtaspMode = mCurrentOtaspMode;
        mCurrentOtaspMode = otaspMode;

        if (oldOtaspMode != mCurrentOtaspMode) {
            if (DBG) {
                log("updateOtaspState: call notifyOtaspChanged old otaspMode=" +
                        oldOtaspMode + " new otaspMode=" + mCurrentOtaspMode);
            }
            mPhone.notifyOtaspChanged(mCurrentOtaspMode);
        }
    }

    protected Phone getPhone() {
        return mPhone;
    }

    protected void handlePollStateResult(int what, AsyncResult ar) {
        // Ignore stale requests from last poll
        if (ar.userObj != mPollingContext) return;

        if (ar.exception != null) {
            CommandException.Error err=null;

            if (ar.exception instanceof CommandException) {
                err = ((CommandException)(ar.exception)).getCommandError();
            }

            if (err == CommandException.Error.RADIO_NOT_AVAILABLE) {
                // Radio has crashed or turned off
                cancelPollState();
                return;
            }

            if (err != CommandException.Error.OP_NOT_ALLOWED_BEFORE_REG_NW) {
                loge("RIL implementation has returned an error where it must succeed" +
                        ar.exception);
            }
        } else try {
            handlePollStateResultMessage(what, ar);
        } catch (RuntimeException ex) {
            loge("Exception while polling service state. Probably malformed RIL response." + ex);
        }

        mPollingContext[0]--;

        if (mPollingContext[0] == 0) {
            if (mPhone.isPhoneTypeGsm()) {
                updateRoamingState();
                mNewSS.setEmergencyOnly(mEmergencyOnly);
            } else {
                boolean namMatch = false;
                if (!isSidsAllZeros() && isHomeSid(mNewSS.getSystemId())) {
                    namMatch = true;
                }

                // Setting SS Roaming (general)
                if (mIsSubscriptionFromRuim) {
                    mNewSS.setVoiceRoaming(isRoamingBetweenOperators(mNewSS.getVoiceRoaming(), mNewSS));
                }
                // For CDMA, voice and data should have the same roaming status
                final boolean isVoiceInService =
                        (mNewSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE);
                final int dataRegType = mNewSS.getRilDataRadioTechnology();
                if (isVoiceInService && ServiceState.isCdma(dataRegType)) {
                    mNewSS.setDataRoaming(mNewSS.getVoiceRoaming());
                }

                // Setting SS CdmaRoamingIndicator and CdmaDefaultRoamingIndicator
                mNewSS.setCdmaDefaultRoamingIndicator(mDefaultRoamingIndicator);
                mNewSS.setCdmaRoamingIndicator(mRoamingIndicator);
                boolean isPrlLoaded = true;
                if (TextUtils.isEmpty(mPrlVersion)) {
                    isPrlLoaded = false;
                }
                if (!isPrlLoaded || (mNewSS.getRilVoiceRadioTechnology()
                        == ServiceState.RIL_RADIO_TECHNOLOGY_UNKNOWN)) {
                    log("Turn off roaming indicator if !isPrlLoaded or voice RAT is unknown");
                    mNewSS.setCdmaRoamingIndicator(EriInfo.ROAMING_INDICATOR_OFF);
                } else if (!isSidsAllZeros()) {
                    if (!namMatch && !mIsInPrl) {
                        // Use default
                        mNewSS.setCdmaRoamingIndicator(mDefaultRoamingIndicator);
                    } else if (namMatch && !mIsInPrl) {
                        // TODO this will be removed when we handle roaming on LTE on CDMA+LTE phones
                        if (ServiceState.isLte(mNewSS.getRilVoiceRadioTechnology())) {
                            log("Turn off roaming indicator as voice is LTE");
                            mNewSS.setCdmaRoamingIndicator(EriInfo.ROAMING_INDICATOR_OFF);
                        } else {
                            mNewSS.setCdmaRoamingIndicator(EriInfo.ROAMING_INDICATOR_FLASH);
                        }
                    } else if (!namMatch && mIsInPrl) {
                        // Use the one from PRL/ERI
                        mNewSS.setCdmaRoamingIndicator(mRoamingIndicator);
                    } else {
                        // It means namMatch && mIsInPrl
                        if ((mRoamingIndicator <= 2)) {
                            mNewSS.setCdmaRoamingIndicator(EriInfo.ROAMING_INDICATOR_OFF);
                        } else {
                            // Use the one from PRL/ERI
                            mNewSS.setCdmaRoamingIndicator(mRoamingIndicator);
                        }
                    }
                }

                int roamingIndicator = mNewSS.getCdmaRoamingIndicator();
                mNewSS.setCdmaEriIconIndex(mPhone.mEriManager.getCdmaEriIconIndex(roamingIndicator,
                        mDefaultRoamingIndicator));
                mNewSS.setCdmaEriIconMode(mPhone.mEriManager.getCdmaEriIconMode(roamingIndicator,
                        mDefaultRoamingIndicator));

                // NOTE: Some operator may require overriding mCdmaRoaming
                // (set by the modem), depending on the mRoamingIndicator.

                if (DBG) {
                    log("Set CDMA Roaming Indicator to: " + mNewSS.getCdmaRoamingIndicator()
                            + ". voiceRoaming = " + mNewSS.getVoiceRoaming()
                            + ". dataRoaming = " + mNewSS.getDataRoaming()
                            + ", isPrlLoaded = " + isPrlLoaded
                            + ". namMatch = " + namMatch + " , mIsInPrl = " + mIsInPrl
                            + ", mRoamingIndicator = " + mRoamingIndicator
                            + ", mDefaultRoamingIndicator= " + mDefaultRoamingIndicator);
                }
            }
            pollStateDone();
        }

    }

    /**
     * Set roaming state when cdmaRoaming is true and ons is different from spn
     * @param cdmaRoaming TS 27.007 7.2 CREG registered roaming
     * @param s ServiceState hold current ons
     * @return true for roaming state set
     */
    private boolean isRoamingBetweenOperators(boolean cdmaRoaming, ServiceState s) {
        return cdmaRoaming && !isSameOperatorNameFromSimAndSS(s);
    }

    void handlePollStateResultMessage(int what, AsyncResult ar) {
        int ints[];
        String states[];
        switch (what) {
            case EVENT_POLL_STATE_REGISTRATION: {
                if (mPhone.isPhoneTypeGsm()) {
                    states = (String[]) ar.result;
                    int lac = -1;
                    int cid = -1;
                    int type = ServiceState.RIL_RADIO_TECHNOLOGY_UNKNOWN;
                    int regState = ServiceState.RIL_REG_STATE_UNKNOWN;
                    int reasonRegStateDenied = -1;
                    int psc = -1;
                    if (states.length > 0) {
                        try {
                            regState = Integer.parseInt(states[0]);
                            if (states.length >= 3) {
                                if (states[1] != null && states[1].length() > 0) {
                                    lac = Integer.parseInt(states[1], 16);
                                }
                                if (states[2] != null && states[2].length() > 0) {
                                    cid = Integer.parseInt(states[2], 16);
                                }

                                // states[3] (if present) is the current radio technology
                                if (states.length >= 4 && states[3] != null) {
                                    type = Integer.parseInt(states[3]);
                                }
                            }
                            if (states.length > 14) {
                                if (states[14] != null && states[14].length() > 0) {
                                    psc = Integer.parseInt(states[14], 16);
                                }
                            }
                        } catch (NumberFormatException ex) {
                            loge("error parsing RegistrationState: " + ex);
                        }
                    }

                    mGsmRoaming = regCodeIsRoaming(regState);
                    mNewSS.setVoiceRegState(regCodeToServiceState(regState));
                    mNewSS.setRilVoiceRadioTechnology(type);

                    boolean isVoiceCapable = mPhone.getContext().getResources()
                            .getBoolean(com.android.internal.R.bool.config_voice_capable);
                    if ((regState == ServiceState.RIL_REG_STATE_DENIED_EMERGENCY_CALL_ENABLED
                            || regState == ServiceState.RIL_REG_STATE_NOT_REG_EMERGENCY_CALL_ENABLED
                            || regState == ServiceState.RIL_REG_STATE_SEARCHING_EMERGENCY_CALL_ENABLED
                            || regState == ServiceState.RIL_REG_STATE_UNKNOWN_EMERGENCY_CALL_ENABLED)
                            && isVoiceCapable) {
                        mEmergencyOnly = true;
                    } else {
                        mEmergencyOnly = false;
                    }

                    // LAC and CID are -1 if not avail
                    ((GsmCellLocation)mNewCellLoc).setLacAndCid(lac, cid);
                    ((GsmCellLocation)mNewCellLoc).setPsc(psc);
                } else {
                    states = (String[])ar.result;

                    int registrationState = 4;     //[0] registrationState
                    int radioTechnology = -1;      //[3] radioTechnology
                    int baseStationId = -1;        //[4] baseStationId
                    //[5] baseStationLatitude
                    int baseStationLatitude = CdmaCellLocation.INVALID_LAT_LONG;
                    //[6] baseStationLongitude
                    int baseStationLongitude = CdmaCellLocation.INVALID_LAT_LONG;
                    int cssIndicator = 0;          //[7] init with 0, because it is treated as a boolean
                    int systemId = 0;              //[8] systemId
                    int networkId = 0;             //[9] networkId
                    int roamingIndicator = -1;     //[10] Roaming indicator
                    int systemIsInPrl = 0;         //[11] Indicates if current system is in PRL
                    int defaultRoamingIndicator = 0;  //[12] Is default roaming indicator from PRL
                    int reasonForDenial = 0;       //[13] Denial reason if registrationState = 3

                    if (states.length >= 14) {
                        try {
                            if (states[0] != null) {
                                registrationState = Integer.parseInt(states[0]);
                            }
                            if (states[3] != null) {
                                radioTechnology = Integer.parseInt(states[3]);
                            }
                            if (states[4] != null) {
                                baseStationId = Integer.parseInt(states[4]);
                            }
                            if (states[5] != null) {
                                baseStationLatitude = Integer.parseInt(states[5]);
                            }
                            if (states[6] != null) {
                                baseStationLongitude = Integer.parseInt(states[6]);
                            }
                            // Some carriers only return lat-lngs of 0,0
                            if (baseStationLatitude == 0 && baseStationLongitude == 0) {
                                baseStationLatitude  = CdmaCellLocation.INVALID_LAT_LONG;
                                baseStationLongitude = CdmaCellLocation.INVALID_LAT_LONG;
                            }
                            if (states[7] != null) {
                                cssIndicator = Integer.parseInt(states[7]);
                            }
                            if (states[8] != null) {
                                systemId = Integer.parseInt(states[8]);
                            }
                            if (states[9] != null) {
                                networkId = Integer.parseInt(states[9]);
                            }
                            if (states[10] != null) {
                                roamingIndicator = Integer.parseInt(states[10]);
                            }
                            if (states[11] != null) {
                                systemIsInPrl = Integer.parseInt(states[11]);
                            }
                            if (states[12] != null) {
                                defaultRoamingIndicator = Integer.parseInt(states[12]);
                            }
                            if (states[13] != null) {
                                reasonForDenial = Integer.parseInt(states[13]);
                            }
                        } catch (NumberFormatException ex) {
                            loge("EVENT_POLL_STATE_REGISTRATION_CDMA: error parsing: " + ex);
                        }
                    } else {
                        throw new RuntimeException("Warning! Wrong number of parameters returned from "
                                + "RIL_REQUEST_REGISTRATION_STATE: expected 14 or more "
                                + "strings and got " + states.length + " strings");
                    }

                    mRegistrationState = registrationState;
                    // When registration state is roaming and TSB58
                    // roaming indicator is not in the carrier-specified
                    // list of ERIs for home system, mCdmaRoaming is true.
                    boolean cdmaRoaming =
                            regCodeIsRoaming(registrationState) && !isRoamIndForHomeSystem(states[10]);
                    mNewSS.setVoiceRoaming(cdmaRoaming);
                    mNewSS.setVoiceRegState(regCodeToServiceState(registrationState));

                    mNewSS.setRilVoiceRadioTechnology(radioTechnology);

                    mNewSS.setCssIndicator(cssIndicator);
                    mNewSS.setSystemAndNetworkId(systemId, networkId);
                    mRoamingIndicator = roamingIndicator;
                    mIsInPrl = (systemIsInPrl == 0) ? false : true;
                    mDefaultRoamingIndicator = defaultRoamingIndicator;


                    // Values are -1 if not available.
                    ((CdmaCellLocation)mNewCellLoc).setCellLocationData(baseStationId,
                            baseStationLatitude, baseStationLongitude, systemId, networkId);

                    if (reasonForDenial == 0) {
                        mRegistrationDeniedReason = ServiceStateTracker.REGISTRATION_DENIED_GEN;
                    } else if (reasonForDenial == 1) {
                        mRegistrationDeniedReason = ServiceStateTracker.REGISTRATION_DENIED_AUTH;
                    } else {
                        mRegistrationDeniedReason = "";
                    }

                    if (mRegistrationState == 3) {
                        if (DBG) log("Registration denied, " + mRegistrationDeniedReason);
                    }
                }
                break;
            }

            case EVENT_POLL_STATE_GPRS: {
                if (mPhone.isPhoneTypeGsm()) {
                    states = (String[]) ar.result;

                    int type = 0;
                    int regState = ServiceState.RIL_REG_STATE_UNKNOWN;
                    mNewReasonDataDenied = -1;
                    mNewMaxDataCalls = 1;
                    if (states.length > 0) {
                        try {
                            regState = Integer.parseInt(states[0]);

                            // states[3] (if present) is the current radio technology
                            if (states.length >= 4 && states[3] != null) {
                                type = Integer.parseInt(states[3]);
                            }
                            if ((states.length >= 5) &&
                                    (regState == ServiceState.RIL_REG_STATE_DENIED)) {
                                mNewReasonDataDenied = Integer.parseInt(states[4]);
                            }
                            if (states.length >= 6) {
                                mNewMaxDataCalls = Integer.parseInt(states[5]);
                            }
                        } catch (NumberFormatException ex) {
                            loge("error parsing GprsRegistrationState: " + ex);
                        }
                    }
                    int dataRegState = regCodeToServiceState(regState);
                    mNewSS.setDataRegState(dataRegState);
                    mDataRoaming = regCodeIsRoaming(regState);
                    mNewSS.setRilDataRadioTechnology(type);
                    if (DBG) {
                        log("handlPollStateResultMessage: GsmSST setDataRegState=" + dataRegState
                                + " regState=" + regState
                                + " dataRadioTechnology=" + type);
                    }
                } else if (mPhone.isPhoneTypeCdma()) {
                    states = (String[])ar.result;
                    if (DBG) {
                        log("handlePollStateResultMessage: EVENT_POLL_STATE_GPRS states.length=" +
                                states.length + " states=" + states);
                    }

                    int regState = ServiceState.RIL_REG_STATE_UNKNOWN;
                    int dataRadioTechnology = 0;

                    if (states.length > 0) {
                        try {
                            regState = Integer.parseInt(states[0]);

                            // states[3] (if present) is the current radio technology
                            if (states.length >= 4 && states[3] != null) {
                                dataRadioTechnology = Integer.parseInt(states[3]);
                            }
                        } catch (NumberFormatException ex) {
                            loge("handlePollStateResultMessage: error parsing GprsRegistrationState: "
                                    + ex);
                        }
                    }

                    int dataRegState = regCodeToServiceState(regState);
                    mNewSS.setDataRegState(dataRegState);
                    mNewSS.setRilDataRadioTechnology(dataRadioTechnology);
                    mNewSS.setDataRoaming(regCodeIsRoaming(regState));
                    if (DBG) {
                        log("handlPollStateResultMessage: cdma setDataRegState=" + dataRegState
                                + " regState=" + regState
                                + " dataRadioTechnology=" + dataRadioTechnology);
                    }
                } else {
                    states = (String[])ar.result;
                    if (DBG) {
                        log("handlePollStateResultMessage: EVENT_POLL_STATE_GPRS states.length=" +
                                states.length + " states=" + states);
                    }

                    int newDataRAT = ServiceState.RIL_RADIO_TECHNOLOGY_UNKNOWN;
                    int regState = -1;
                    if (states.length > 0) {
                        try {
                            regState = Integer.parseInt(states[0]);

                            // states[3] (if present) is the current radio technology
                            if (states.length >= 4 && states[3] != null) {
                                newDataRAT = Integer.parseInt(states[3]);
                            }
                        } catch (NumberFormatException ex) {
                            loge("handlePollStateResultMessage: error parsing GprsRegistrationState: "
                                    + ex);
                        }
                    }

                    // If the unsolicited signal strength comes just before data RAT family changes
                    // (i.e. from UNKNOWN to LTE, CDMA to LTE, LTE to CDMA), the signal bar might
                    // display the wrong information until the next unsolicited signal strength
                    // information coming from the modem, which might take a long time to come or
                    // even not come at all.  In order to provide the best user experience, we
                    // query the latest signal information so it will show up on the UI on time.
                    int oldDataRAT = mSS.getRilDataRadioTechnology();
                    if ((oldDataRAT == ServiceState.RIL_RADIO_TECHNOLOGY_UNKNOWN &&
                            newDataRAT != ServiceState.RIL_RADIO_TECHNOLOGY_UNKNOWN) ||
                            (ServiceState.isCdma(oldDataRAT) && ServiceState.isLte(newDataRAT)) ||
                            (ServiceState.isLte(oldDataRAT) && ServiceState.isCdma(newDataRAT))) {
                        mCi.getSignalStrength(obtainMessage(EVENT_GET_SIGNAL_STRENGTH));
                    }

                    mNewSS.setRilDataRadioTechnology(newDataRAT);
                    int dataRegState = regCodeToServiceState(regState);
                    mNewSS.setDataRegState(dataRegState);
                    // voice roaming state in done while handling EVENT_POLL_STATE_REGISTRATION_CDMA
                    mNewSS.setDataRoaming(regCodeIsRoaming(regState));
                    if (DBG) {
                        log("handlPollStateResultMessage: CdmaLteSST setDataRegState=" + dataRegState
                                + " regState=" + regState
                                + " dataRadioTechnology=" + newDataRAT);
                    }
                }
                break;
            }

            case EVENT_POLL_STATE_OPERATOR: {
                if (mPhone.isPhoneTypeGsm()) {
                    String opNames[] = (String[]) ar.result;

                    if (opNames != null && opNames.length >= 3) {
                        // FIXME: Giving brandOverride higher precedence, is this desired?
                        String brandOverride = mUiccController.getUiccCard(getPhoneId()) != null ?
                                mUiccController.getUiccCard(getPhoneId()).getOperatorBrandOverride() : null;
                        if (brandOverride != null) {
                            log("EVENT_POLL_STATE_OPERATOR: use brandOverride=" + brandOverride);
                            mNewSS.setOperatorName(brandOverride, brandOverride, opNames[2]);
                        } else {
                            mNewSS.setOperatorName(opNames[0], opNames[1], opNames[2]);
                        }
                    }
                } else {
                    String opNames[] = (String[])ar.result;

                    if (opNames != null && opNames.length >= 3) {
                        // TODO: Do we care about overriding in this case.
                        // If the NUMERIC field isn't valid use PROPERTY_CDMA_HOME_OPERATOR_NUMERIC
                        if ((opNames[2] == null) || (opNames[2].length() < 5)
                                || ("00000".equals(opNames[2]))) {
                            opNames[2] = SystemProperties.get(
                                    GsmCdmaPhone.PROPERTY_CDMA_HOME_OPERATOR_NUMERIC, "00000");
                            if (DBG) {
                                log("RIL_REQUEST_OPERATOR.response[2], the numeric, " +
                                        " is bad. Using SystemProperties '" +
                                        GsmCdmaPhone.PROPERTY_CDMA_HOME_OPERATOR_NUMERIC +
                                        "'= " + opNames[2]);
                            }
                        }

                        if (!mIsSubscriptionFromRuim) {
                            // NV device (as opposed to CSIM)
                            mNewSS.setOperatorName(opNames[0], opNames[1], opNames[2]);
                        } else {
                            String brandOverride = mUiccController.getUiccCard(getPhoneId()) != null ?
                                    mUiccController.getUiccCard(getPhoneId()).getOperatorBrandOverride() : null;
                            if (brandOverride != null) {
                                mNewSS.setOperatorName(brandOverride, brandOverride, opNames[2]);
                            } else {
                                mNewSS.setOperatorName(opNames[0], opNames[1], opNames[2]);
                            }
                        }
                    } else {
                        if (DBG) log("EVENT_POLL_STATE_OPERATOR_CDMA: error parsing opNames");
                    }
                }
                break;
            }

            case EVENT_POLL_STATE_NETWORK_SELECTION_MODE: {
                ints = (int[])ar.result;
                mNewSS.setIsManualSelection(ints[0] == 1);
                if ((ints[0] == 1) && (!mPhone.isManualNetSelAllowed())) {
                        /*
                         * modem is currently in manual selection but manual
                         * selection is not allowed in the current mode so
                         * switch to automatic registration
                         */
                    mPhone.setNetworkSelectionModeAutomatic (null);
                    log(" Forcing Automatic Network Selection, " +
                            "manual selection is not allowed");
                }
                break;
            }

            default:
                loge("handlePollStateResultMessage: Unexpected RIL response received: " + what);
        }
    }

    /**
     * Determine whether a roaming indicator is in the carrier-specified list of ERIs for
     * home system
     *
     * @param roamInd roaming indicator in String
     * @return true if the roamInd is in the carrier-specified list of ERIs for home network
     */
    private boolean isRoamIndForHomeSystem(String roamInd) {
        // retrieve the carrier-specified list of ERIs for home system
        String[] homeRoamIndicators = mPhone.getContext().getResources()
                .getStringArray(com.android.internal.R.array.config_cdma_home_system);

        if (homeRoamIndicators != null) {
            // searches through the comma-separated list for a match,
            // return true if one is found.
            for (String homeRoamInd : homeRoamIndicators) {
                if (homeRoamInd.equals(roamInd)) {
                    return true;
                }
            }
            // no matches found against the list!
            return false;
        }

        // no system property found for the roaming indicators for home system
        return false;
    }

    /**
     * Query the carrier configuration to determine if there any network overrides
     * for roaming or not roaming for the current service state.
     */
    protected void updateRoamingState() {
        if (mPhone.isPhoneTypeGsm()) {
            /**
             * Since the roaming state of gsm service (from +CREG) and
             * data service (from +CGREG) could be different, the new SS
             * is set to roaming when either is true.
             *
             * There are exceptions for the above rule.
             * The new SS is not set as roaming while gsm service reports
             * roaming but indeed it is same operator.
             * And the operator is considered non roaming.
             *
             * The test for the operators is to handle special roaming
             * agreements and MVNO's.
             */
            boolean roaming = (mGsmRoaming || mDataRoaming);
            if (mGsmRoaming && !isOperatorConsideredRoaming(mNewSS) &&
                    (isSameNamedOperators(mNewSS) || isOperatorConsideredNonRoaming(mNewSS))) {
                roaming = false;
            }

            // Save the roaming state before carrier config possibly overrides it.
            mNewSS.setDataRoamingFromRegistration(roaming);

            CarrierConfigManager configLoader = (CarrierConfigManager)
                    mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);

            if (configLoader != null) {
                try {
                    PersistableBundle b = configLoader.getConfigForSubId(mPhone.getSubId());

                    if (alwaysOnHomeNetwork(b)) {
                        log("updateRoamingState: carrier config override always on home network");
                        roaming = false;
                    } else if (isNonRoamingInGsmNetwork(b, mNewSS.getOperatorNumeric())) {
                        log("updateRoamingState: carrier config override set non roaming:"
                                + mNewSS.getOperatorNumeric());
                        roaming = false;
                    } else if (isRoamingInGsmNetwork(b, mNewSS.getOperatorNumeric())) {
                        log("updateRoamingState: carrier config override set roaming:"
                                + mNewSS.getOperatorNumeric());
                        roaming = true;
                    }
                } catch (Exception e) {
                    loge("updateRoamingState: unable to access carrier config service");
                }
            } else {
                log("updateRoamingState: no carrier config service available");
            }

            mNewSS.setVoiceRoaming(roaming);
            mNewSS.setDataRoaming(roaming);
        } else {
            // Save the roaming state before carrier config possibly overrides it.
            mNewSS.setDataRoamingFromRegistration(mNewSS.getDataRoaming());

            CarrierConfigManager configLoader = (CarrierConfigManager)
                    mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);
            if (configLoader != null) {
                try {
                    PersistableBundle b = configLoader.getConfigForSubId(mPhone.getSubId());
                    String systemId = Integer.toString(mNewSS.getSystemId());

                    if (alwaysOnHomeNetwork(b)) {
                        log("updateRoamingState: carrier config override always on home network");
                        setRoamingOff();
                    } else if (isNonRoamingInGsmNetwork(b, mNewSS.getOperatorNumeric())
                            || isNonRoamingInCdmaNetwork(b, systemId)) {
                        log("updateRoamingState: carrier config override set non-roaming:"
                                + mNewSS.getOperatorNumeric() + ", " + systemId);
                        setRoamingOff();
                    } else if (isRoamingInGsmNetwork(b, mNewSS.getOperatorNumeric())
                            || isRoamingInCdmaNetwork(b, systemId)) {
                        log("updateRoamingState: carrier config override set roaming:"
                                + mNewSS.getOperatorNumeric() + ", " + systemId);
                        setRoamingOn();
                    }
                } catch (Exception e) {
                    loge("updateRoamingState: unable to access carrier config service");
                }
            } else {
                log("updateRoamingState: no carrier config service available");
            }

            if (Build.IS_DEBUGGABLE && SystemProperties.getBoolean(PROP_FORCE_ROAMING, false)) {
                mNewSS.setVoiceRoaming(true);
                mNewSS.setDataRoaming(true);
            }
        }
    }

    private void setRoamingOn() {
        mNewSS.setVoiceRoaming(true);
        mNewSS.setDataRoaming(true);
        mNewSS.setCdmaEriIconIndex(EriInfo.ROAMING_INDICATOR_ON);
        mNewSS.setCdmaEriIconMode(EriInfo.ROAMING_ICON_MODE_NORMAL);
    }

    private void setRoamingOff() {
        mNewSS.setVoiceRoaming(false);
        mNewSS.setDataRoaming(false);
        mNewSS.setCdmaEriIconIndex(EriInfo.ROAMING_INDICATOR_OFF);
    }

    protected void updateSpnDisplay() {
        updateOperatorNameFromEri();

        String wfcVoiceSpnFormat = null;
        String wfcDataSpnFormat = null;
        if (mPhone.getImsPhone() != null && mPhone.getImsPhone().isWifiCallingEnabled()) {
            // In Wi-Fi Calling mode show SPN+WiFi

            String[] wfcSpnFormats = mPhone.getContext().getResources().getStringArray(
                    com.android.internal.R.array.wfcSpnFormats);
            int voiceIdx = 0;
            int dataIdx = 0;
            CarrierConfigManager configLoader = (CarrierConfigManager)
                    mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);
            if (configLoader != null) {
                try {
                    PersistableBundle b = configLoader.getConfigForSubId(mPhone.getSubId());
                    if (b != null) {
                        voiceIdx = b.getInt(CarrierConfigManager.KEY_WFC_SPN_FORMAT_IDX_INT);
                        dataIdx = b.getInt(
                                CarrierConfigManager.KEY_WFC_DATA_SPN_FORMAT_IDX_INT);
                    }
                } catch (Exception e) {
                    loge("updateSpnDisplay: carrier config error: " + e);
                }
            }

            wfcVoiceSpnFormat = wfcSpnFormats[voiceIdx];
            wfcDataSpnFormat = wfcSpnFormats[dataIdx];
        }

        if (mPhone.isPhoneTypeGsm()) {
            // The values of plmn/showPlmn change in different scenarios.
            // 1) No service but emergency call allowed -> expected
            //    to show "Emergency call only"
            //    EXTRA_SHOW_PLMN = true
            //    EXTRA_PLMN = "Emergency call only"

            // 2) No service at all --> expected to show "No service"
            //    EXTRA_SHOW_PLMN = true
            //    EXTRA_PLMN = "No service"

            // 3) Normal operation in either home or roaming service
            //    EXTRA_SHOW_PLMN = depending on IccRecords rule
            //    EXTRA_PLMN = plmn

            // 4) No service due to power off, aka airplane mode
            //    EXTRA_SHOW_PLMN = false
            //    EXTRA_PLMN = null

            IccRecords iccRecords = mIccRecords;
            String plmn = null;
            boolean showPlmn = false;
            int rule = (iccRecords != null) ? iccRecords.getDisplayRule(mSS.getOperatorNumeric()) : 0;
            if (mSS.getVoiceRegState() == ServiceState.STATE_OUT_OF_SERVICE
                    || mSS.getVoiceRegState() == ServiceState.STATE_EMERGENCY_ONLY) {
                showPlmn = true;
                if (mEmergencyOnly) {
                    // No service but emergency call allowed
                    plmn = Resources.getSystem().
                            getText(com.android.internal.R.string.emergency_calls_only).toString();
                } else {
                    // No service at all
                    plmn = Resources.getSystem().
                            getText(com.android.internal.R.string.lockscreen_carrier_default).toString();
                }
                if (DBG) log("updateSpnDisplay: radio is on but out " +
                        "of service, set plmn='" + plmn + "'");
            } else if (mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE) {
                // In either home or roaming service
                plmn = mSS.getOperatorAlphaLong();
                showPlmn = !TextUtils.isEmpty(plmn) &&
                        ((rule & SIMRecords.SPN_RULE_SHOW_PLMN)
                                == SIMRecords.SPN_RULE_SHOW_PLMN);
            } else {
                // Power off state, such as airplane mode, show plmn as "No service"
                showPlmn = true;
                plmn = Resources.getSystem().
                        getText(com.android.internal.R.string.lockscreen_carrier_default).toString();
                if (DBG) log("updateSpnDisplay: radio is off w/ showPlmn="
                        + showPlmn + " plmn=" + plmn);
            }

            // The value of spn/showSpn are same in different scenarios.
            //    EXTRA_SHOW_SPN = depending on IccRecords rule and radio/IMS state
            //    EXTRA_SPN = spn
            //    EXTRA_DATA_SPN = dataSpn
            String spn = (iccRecords != null) ? iccRecords.getServiceProviderName() : "";
            String dataSpn = spn;
            boolean showSpn = !TextUtils.isEmpty(spn)
                    && ((rule & SIMRecords.SPN_RULE_SHOW_SPN)
                    == SIMRecords.SPN_RULE_SHOW_SPN);

            if (!TextUtils.isEmpty(spn) && !TextUtils.isEmpty(wfcVoiceSpnFormat) &&
                    !TextUtils.isEmpty(wfcDataSpnFormat)) {
                // In Wi-Fi Calling mode show SPN+WiFi

                String originalSpn = spn.trim();
                spn = String.format(wfcVoiceSpnFormat, originalSpn);
                dataSpn = String.format(wfcDataSpnFormat, originalSpn);
                showSpn = true;
                showPlmn = false;
            } else if (mSS.getVoiceRegState() == ServiceState.STATE_POWER_OFF
                    || (showPlmn && TextUtils.equals(spn, plmn))) {
                // airplane mode or spn equals plmn, do not show spn
                spn = null;
                showSpn = false;
            }

            int subId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
            int[] subIds = SubscriptionManager.getSubId(mPhone.getPhoneId());
            if (subIds != null && subIds.length > 0) {
                subId = subIds[0];
            }

            // Update SPN_STRINGS_UPDATED_ACTION IFF any value changes
            if (mSubId != subId ||
                    showPlmn != mCurShowPlmn
                    || showSpn != mCurShowSpn
                    || !TextUtils.equals(spn, mCurSpn)
                    || !TextUtils.equals(dataSpn, mCurDataSpn)
                    || !TextUtils.equals(plmn, mCurPlmn)) {
                if (DBG) {
                    log(String.format("updateSpnDisplay: changed sending intent rule=" + rule +
                            " showPlmn='%b' plmn='%s' showSpn='%b' spn='%s' dataSpn='%s' " +
                            "subId='%d'", showPlmn, plmn, showSpn, spn, dataSpn, subId));
                }
                Intent intent = new Intent(TelephonyIntents.SPN_STRINGS_UPDATED_ACTION);
                intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
                intent.putExtra(TelephonyIntents.EXTRA_SHOW_SPN, showSpn);
                intent.putExtra(TelephonyIntents.EXTRA_SPN, spn);
                intent.putExtra(TelephonyIntents.EXTRA_DATA_SPN, dataSpn);
                intent.putExtra(TelephonyIntents.EXTRA_SHOW_PLMN, showPlmn);
                intent.putExtra(TelephonyIntents.EXTRA_PLMN, plmn);
                SubscriptionManager.putPhoneIdAndSubIdExtra(intent, mPhone.getPhoneId());
                mPhone.getContext().sendStickyBroadcastAsUser(intent, UserHandle.ALL);

                if (!mSubscriptionController.setPlmnSpn(mPhone.getPhoneId(),
                        showPlmn, plmn, showSpn, spn)) {
                    mSpnUpdatePending = true;
                }
            }

            mSubId = subId;
            mCurShowSpn = showSpn;
            mCurShowPlmn = showPlmn;
            mCurSpn = spn;
            mCurDataSpn = dataSpn;
            mCurPlmn = plmn;
        } else {
            // mOperatorAlphaLong contains the ERI text
            String plmn = mSS.getOperatorAlphaLong();
            boolean showPlmn = false;

            showPlmn = plmn != null;

            int subId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
            int[] subIds = SubscriptionManager.getSubId(mPhone.getPhoneId());
            if (subIds != null && subIds.length > 0) {
                subId = subIds[0];
            }

            if (!TextUtils.isEmpty(plmn) && !TextUtils.isEmpty(wfcVoiceSpnFormat)) {
                // In Wi-Fi Calling mode show SPN+WiFi

                String originalPlmn = plmn.trim();
                plmn = String.format(wfcVoiceSpnFormat, originalPlmn);
            } else if (mCi.getRadioState() == CommandsInterface.RadioState.RADIO_OFF) {
                // todo: temporary hack; should have a better fix. This is to avoid using operator
                // name from ServiceState (populated in resetServiceStateInIwlanMode()) until
                // wifi calling is actually enabled
                log("updateSpnDisplay: overwriting plmn from " + plmn + " to null as radio " +
                        "state is off");
                plmn = null;
            }

            if (mSubId != subId || !TextUtils.equals(plmn, mCurPlmn)) {
                // Allow A blank plmn, "" to set showPlmn to true. Previously, we
                // would set showPlmn to true only if plmn was not empty, i.e. was not
                // null and not blank. But this would cause us to incorrectly display
                // "No Service". Now showPlmn is set to true for any non null string.
                if (DBG) {
                    log(String.format("updateSpnDisplay: changed sending intent" +
                            " showPlmn='%b' plmn='%s' subId='%d'", showPlmn, plmn, subId));
                }
                Intent intent = new Intent(TelephonyIntents.SPN_STRINGS_UPDATED_ACTION);
                intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
                intent.putExtra(TelephonyIntents.EXTRA_SHOW_SPN, false);
                intent.putExtra(TelephonyIntents.EXTRA_SPN, "");
                intent.putExtra(TelephonyIntents.EXTRA_SHOW_PLMN, showPlmn);
                intent.putExtra(TelephonyIntents.EXTRA_PLMN, plmn);
                SubscriptionManager.putPhoneIdAndSubIdExtra(intent, mPhone.getPhoneId());
                mPhone.getContext().sendStickyBroadcastAsUser(intent, UserHandle.ALL);

                if (!mSubscriptionController.setPlmnSpn(mPhone.getPhoneId(),
                        showPlmn, plmn, false, "")) {
                    mSpnUpdatePending = true;
                }
            }

            mSubId = subId;
            mCurShowSpn = false;
            mCurShowPlmn = showPlmn;
            mCurSpn = "";
            mCurPlmn = plmn;
        }
    }

    protected void setPowerStateToDesired() {
        if (DBG) {
            log("mDeviceShuttingDown=" + mDeviceShuttingDown +
                    ", mDesiredPowerState=" + mDesiredPowerState +
                    ", getRadioState=" + mCi.getRadioState() +
                    ", mPowerOffDelayNeed=" + mPowerOffDelayNeed +
                    ", mAlarmSwitch=" + mAlarmSwitch +
                    ", mRadioDisabledByCarrier=" + mRadioDisabledByCarrier);
        }

        if (mPhone.isPhoneTypeGsm() && mAlarmSwitch) {
            if(DBG) log("mAlarmSwitch == true");
            Context context = mPhone.getContext();
            AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
            am.cancel(mRadioOffIntent);
            mAlarmSwitch = false;
        }

        // If we want it on and it's off, turn it on
        if (mDesiredPowerState && !mRadioDisabledByCarrier
                && mCi.getRadioState() == CommandsInterface.RadioState.RADIO_OFF) {
            mCi.setRadioPower(true, null);
        } else if ((!mDesiredPowerState || mRadioDisabledByCarrier) && mCi.getRadioState().isOn()) {
            // If it's on and available and we want it off gracefully
            if (mPhone.isPhoneTypeGsm() && mPowerOffDelayNeed) {
                if (mImsRegistrationOnOff && !mAlarmSwitch) {
                    if(DBG) log("mImsRegistrationOnOff == true");
                    Context context = mPhone.getContext();
                    AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

                    Intent intent = new Intent(ACTION_RADIO_OFF);
                    mRadioOffIntent = PendingIntent.getBroadcast(context, 0, intent, 0);

                    mAlarmSwitch = true;
                    if (DBG) log("Alarm setting");
                    am.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
                            SystemClock.elapsedRealtime() + 3000, mRadioOffIntent);
                } else {
                    DcTracker dcTracker = mPhone.mDcTracker;
                    powerOffRadioSafely(dcTracker);
                }
            } else {
                DcTracker dcTracker = mPhone.mDcTracker;
                powerOffRadioSafely(dcTracker);
            }
        } else if (mDeviceShuttingDown && mCi.getRadioState().isAvailable()) {
            mCi.requestShutdown(null);
        }
    }

    protected void onUpdateIccAvailability() {
        if (mUiccController == null ) {
            return;
        }

        UiccCardApplication newUiccApplication = getUiccCardApplication();

        if (mUiccApplcation != newUiccApplication) {
            if (mUiccApplcation != null) {
                log("Removing stale icc objects.");
                mUiccApplcation.unregisterForReady(this);
                if (mIccRecords != null) {
                    mIccRecords.unregisterForRecordsLoaded(this);
                }
                mIccRecords = null;
                mUiccApplcation = null;
            }
            if (newUiccApplication != null) {
                log("New card found");
                mUiccApplcation = newUiccApplication;
                mIccRecords = mUiccApplcation.getIccRecords();
                if (mPhone.isPhoneTypeGsm()) {
                    mUiccApplcation.registerForReady(this, EVENT_SIM_READY, null);
                    if (mIccRecords != null) {
                        mIccRecords.registerForRecordsLoaded(this, EVENT_SIM_RECORDS_LOADED, null);
                    }
                } else if (mIsSubscriptionFromRuim) {
                    mUiccApplcation.registerForReady(this, EVENT_RUIM_READY, null);
                    if (mIccRecords != null) {
                        mIccRecords.registerForRecordsLoaded(this, EVENT_RUIM_RECORDS_LOADED, null);
                    }
                }
            }
        }
    }

    private void logRoamingChange() {
        mRoamingLog.log(mSS.toString());
    }

    private void logAttachChange() {
        mAttachLog.log(mSS.toString());
    }

    private void logPhoneTypeChange() {
        mPhoneTypeLog.log(Integer.toString(mPhone.getPhoneType()));
    }

    private void logRatChange() {
        mRatLog.log(mSS.toString());
    }

    protected void log(String s) {
        Rlog.d(LOG_TAG, s);
    }

    protected void loge(String s) {
        Rlog.e(LOG_TAG, s);
    }

    /**
     * @return The current GPRS state. IN_SERVICE is the same as "attached"
     * and OUT_OF_SERVICE is the same as detached.
     */
    public int getCurrentDataConnectionState() {
        return mSS.getDataRegState();
    }

    /**
     * @return true if phone is camping on a technology (eg UMTS)
     * that could support voice and data simultaneously.
     */
    public boolean isConcurrentVoiceAndDataAllowed() {
        if (mPhone.isPhoneTypeGsm()) {
            return (mSS.getRilVoiceRadioTechnology() >= ServiceState.RIL_RADIO_TECHNOLOGY_UMTS);
        } else if (mPhone.isPhoneTypeCdma()) {
            // Note: it needs to be confirmed which CDMA network types
            // can support voice and data calls concurrently.
            // For the time-being, the return value will be false.
            return false;
        } else {
            // Using the Conncurrent Service Supported flag for CdmaLte devices.
            return mSS.getCssIndicator() == 1;
        }
    }

    public void setImsRegistrationState(boolean registered) {
        log("ImsRegistrationState - registered : " + registered);

        if (mImsRegistrationOnOff && !registered) {
            if (mAlarmSwitch) {
                mImsRegistrationOnOff = registered;

                Context context = mPhone.getContext();
                AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
                am.cancel(mRadioOffIntent);
                mAlarmSwitch = false;

                sendMessage(obtainMessage(EVENT_CHANGE_IMS_STATE));
                return;
            }
        }
        mImsRegistrationOnOff = registered;
    }

    public void onImsCapabilityChanged() {
        sendMessage(obtainMessage(EVENT_IMS_CAPABILITY_CHANGED));
    }

    public boolean isRadioOn() {
        return mCi.getRadioState() == CommandsInterface.RadioState.RADIO_ON;
    }

    /**
     * A complete "service state" from our perspective is
     * composed of a handful of separate requests to the radio.
     *
     * We make all of these requests at once, but then abandon them
     * and start over again if the radio notifies us that some
     * event has changed
     */
    public void pollState() {
        pollState(false);
    }
    /**
     * We insist on polling even if the radio says its off.
     * Used when we get a network changed notification
     * but the radio is off - part of iwlan hack
     */
    private void modemTriggeredPollState() {
        pollState(true);
    }

    public void pollState(boolean modemTriggered) {
        mPollingContext = new int[1];
        mPollingContext[0] = 0;

        switch (mCi.getRadioState()) {
            case RADIO_UNAVAILABLE:
                mNewSS.setStateOutOfService();
                mNewCellLoc.setStateInvalid();
                setSignalStrengthDefaultValues();
                mGotCountryCode = false;
                mNitzUpdatedTime = false;
                pollStateDone();
                break;

            case RADIO_OFF:
                mNewSS.setStateOff();
                mNewCellLoc.setStateInvalid();
                setSignalStrengthDefaultValues();
                mGotCountryCode = false;
                mNitzUpdatedTime = false;
                // don't poll for state when the radio is off
                // EXCEPT, if the poll was modemTrigged (they sent us new radio data)
                // or we're on IWLAN
                if (!modemTriggered && ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN
                        != mSS.getRilDataRadioTechnology()) {
                    pollStateDone();
                    break;
                }

            default:
                // Issue all poll-related commands at once then count down the responses, which
                // are allowed to arrive out-of-order
                mPollingContext[0]++;
                mCi.getOperator(obtainMessage(EVENT_POLL_STATE_OPERATOR, mPollingContext));

                mPollingContext[0]++;
                mCi.getDataRegistrationState(obtainMessage(EVENT_POLL_STATE_GPRS, mPollingContext));

                mPollingContext[0]++;
                mCi.getVoiceRegistrationState(obtainMessage(EVENT_POLL_STATE_REGISTRATION,
                        mPollingContext));

                if (mPhone.isPhoneTypeGsm()) {
                    mPollingContext[0]++;
                    mCi.getNetworkSelectionMode(obtainMessage(
                            EVENT_POLL_STATE_NETWORK_SELECTION_MODE, mPollingContext));
                }
                break;
        }
    }

    //todo: try to merge pollstate functions
    private void pollStateDone() {
        if (mPhone.isPhoneTypeGsm()) {
            pollStateDoneGsm();
        } else if (mPhone.isPhoneTypeCdma()) {
            pollStateDoneCdma();
        } else {
            pollStateDoneCdmaLte();
        }
    }

    private void pollStateDoneGsm() {
        if (Build.IS_DEBUGGABLE && SystemProperties.getBoolean(PROP_FORCE_ROAMING, false)) {
            mNewSS.setVoiceRoaming(true);
            mNewSS.setDataRoaming(true);
        }
        useDataRegStateForDataOnlyDevices();
        resetServiceStateInIwlanMode();

        if (DBG) {
            log("Poll ServiceState done: " +
                    " oldSS=[" + mSS + "] newSS=[" + mNewSS + "]" +
                    " oldMaxDataCalls=" + mMaxDataCalls +
                    " mNewMaxDataCalls=" + mNewMaxDataCalls +
                    " oldReasonDataDenied=" + mReasonDataDenied +
                    " mNewReasonDataDenied=" + mNewReasonDataDenied);
        }

        boolean hasRegistered =
                mSS.getVoiceRegState() != ServiceState.STATE_IN_SERVICE
                        && mNewSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE;

        boolean hasDeregistered =
                mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE
                        && mNewSS.getVoiceRegState() != ServiceState.STATE_IN_SERVICE;

        boolean hasGprsAttached =
                mSS.getDataRegState() != ServiceState.STATE_IN_SERVICE
                        && mNewSS.getDataRegState() == ServiceState.STATE_IN_SERVICE;

        boolean hasGprsDetached =
                mSS.getDataRegState() == ServiceState.STATE_IN_SERVICE
                        && mNewSS.getDataRegState() != ServiceState.STATE_IN_SERVICE;

        boolean hasDataRegStateChanged =
                mSS.getDataRegState() != mNewSS.getDataRegState();

        boolean hasVoiceRegStateChanged =
                mSS.getVoiceRegState() != mNewSS.getVoiceRegState();

        boolean hasLocationChanged = !mNewCellLoc.equals(mCellLoc);

        // ratchet the new tech up through it's rat family but don't drop back down
        // until cell change
        if (hasLocationChanged == false) {
            mRatRatcheter.ratchetRat(mSS, mNewSS);
        }

        boolean hasRilVoiceRadioTechnologyChanged =
                mSS.getRilVoiceRadioTechnology() != mNewSS.getRilVoiceRadioTechnology();

        boolean hasRilDataRadioTechnologyChanged =
                mSS.getRilDataRadioTechnology() != mNewSS.getRilDataRadioTechnology();

        boolean hasChanged = !mNewSS.equals(mSS);

        boolean hasVoiceRoamingOn = !mSS.getVoiceRoaming() && mNewSS.getVoiceRoaming();

        boolean hasVoiceRoamingOff = mSS.getVoiceRoaming() && !mNewSS.getVoiceRoaming();

        boolean hasDataRoamingOn = !mSS.getDataRoaming() && mNewSS.getDataRoaming();

        boolean hasDataRoamingOff = mSS.getDataRoaming() && !mNewSS.getDataRoaming();

        TelephonyManager tm =
                (TelephonyManager) mPhone.getContext().getSystemService(Context.TELEPHONY_SERVICE);

        // Add an event log when connection state changes
        if (hasVoiceRegStateChanged || hasDataRegStateChanged) {
            EventLog.writeEvent(EventLogTags.GSM_SERVICE_STATE_CHANGE,
                    mSS.getVoiceRegState(), mSS.getDataRegState(),
                    mNewSS.getVoiceRegState(), mNewSS.getDataRegState());
        }

        // Add an event log when network type switched
        // TODO: we may add filtering to reduce the event logged,
        // i.e. check preferred network setting, only switch to 2G, etc
        if (hasRilVoiceRadioTechnologyChanged) {
            int cid = -1;
            GsmCellLocation loc = (GsmCellLocation)mNewCellLoc;
            if (loc != null) cid = loc.getCid();
            // NOTE: this code was previously located after mSS and mNewSS are swapped, so
            // existing logs were incorrectly using the new state for "network_from"
            // and STATE_OUT_OF_SERVICE for "network_to". To avoid confusion, use a new log tag
            // to record the correct states.
            EventLog.writeEvent(EventLogTags.GSM_RAT_SWITCHED_NEW, cid,
                    mSS.getRilVoiceRadioTechnology(),
                    mNewSS.getRilVoiceRadioTechnology());
            if (DBG) {
                log("RAT switched "
                        + ServiceState.rilRadioTechnologyToString(mSS.getRilVoiceRadioTechnology())
                        + " -> "
                        + ServiceState.rilRadioTechnologyToString(
                        mNewSS.getRilVoiceRadioTechnology()) + " at cell " + cid);
            }
        }

        // swap mSS and mNewSS to put new state in mSS
        ServiceState tss = mSS;
        mSS = mNewSS;
        mNewSS = tss;
        // clean slate for next time
        mNewSS.setStateOutOfService();

        // swap mCellLoc and mNewCellLoc to put new state in mCellLoc
        GsmCellLocation tcl = (GsmCellLocation)mCellLoc;
        mCellLoc = mNewCellLoc;
        mNewCellLoc = tcl;

        mReasonDataDenied = mNewReasonDataDenied;
        mMaxDataCalls = mNewMaxDataCalls;

        if (hasRilVoiceRadioTechnologyChanged) {
            updatePhoneObject();
        }

        if (hasRilDataRadioTechnologyChanged) {
            tm.setDataNetworkTypeForPhone(mPhone.getPhoneId(), mSS.getRilDataRadioTechnology());

            if (ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN
                    == mSS.getRilDataRadioTechnology()) {
                log("pollStateDone: IWLAN enabled");
            }
        }

        if (hasRegistered) {
            mNetworkAttachedRegistrants.notifyRegistrants();

            if (DBG) {
                log("pollStateDone: registering current mNitzUpdatedTime=" +
                        mNitzUpdatedTime + " changing to false");
            }
            mNitzUpdatedTime = false;
        }

        if (hasChanged) {
            String operatorNumeric;

            updateSpnDisplay();

            tm.setNetworkOperatorNameForPhone(mPhone.getPhoneId(), mSS.getOperatorAlphaLong());

            String prevOperatorNumeric = tm.getNetworkOperatorForPhone(mPhone.getPhoneId());
            operatorNumeric = mSS.getOperatorNumeric();
            tm.setNetworkOperatorNumericForPhone(mPhone.getPhoneId(), operatorNumeric);
            updateCarrierMccMncConfiguration(operatorNumeric,
                    prevOperatorNumeric, mPhone.getContext());
            if (operatorNumeric == null) {
                if (DBG) log("operatorNumeric is null");
                tm.setNetworkCountryIsoForPhone(mPhone.getPhoneId(), "");
                mGotCountryCode = false;
                mNitzUpdatedTime = false;
            } else {
                String iso = "";
                String mcc = "";
                try{
                    mcc = operatorNumeric.substring(0, 3);
                    iso = MccTable.countryCodeForMcc(Integer.parseInt(mcc));
                } catch ( NumberFormatException ex){
                    loge("pollStateDone: countryCodeForMcc error" + ex);
                } catch ( StringIndexOutOfBoundsException ex) {
                    loge("pollStateDone: countryCodeForMcc error" + ex);
                }

                tm.setNetworkCountryIsoForPhone(mPhone.getPhoneId(), iso);
                mGotCountryCode = true;

                TimeZone zone = null;

                if (!mNitzUpdatedTime && !mcc.equals("000") && !TextUtils.isEmpty(iso) &&
                        getAutoTimeZone()) {

                    // Test both paths if ignore nitz is true
                    boolean testOneUniqueOffsetPath = SystemProperties.getBoolean(
                            TelephonyProperties.PROPERTY_IGNORE_NITZ, false) &&
                            ((SystemClock.uptimeMillis() & 1) == 0);

                    ArrayList<TimeZone> uniqueZones = TimeUtils.getTimeZonesWithUniqueOffsets(iso);
                    if ((uniqueZones.size() == 1) || testOneUniqueOffsetPath) {
                        zone = uniqueZones.get(0);
                        if (DBG) {
                            log("pollStateDone: no nitz but one TZ for iso-cc=" + iso +
                                    " with zone.getID=" + zone.getID() +
                                    " testOneUniqueOffsetPath=" + testOneUniqueOffsetPath);
                        }
                        setAndBroadcastNetworkSetTimeZone(zone.getID());
                    } else {
                        if (DBG) {
                            log("pollStateDone: there are " + uniqueZones.size() +
                                    " unique offsets for iso-cc='" + iso +
                                    " testOneUniqueOffsetPath=" + testOneUniqueOffsetPath +
                                    "', do nothing");
                        }
                    }
                }

                if (shouldFixTimeZoneNow(mPhone, operatorNumeric, prevOperatorNumeric,
                        mNeedFixZoneAfterNitz)) {
                    fixTimeZone(iso);
                }
            }

            tm.setNetworkRoamingForPhone(mPhone.getPhoneId(), mSS.getVoiceRoaming());

            setRoamingType(mSS);
            log("Broadcasting ServiceState : " + mSS);
            mPhone.notifyServiceStateChanged(mSS);

            TelephonyMetrics.getInstance().writeServiceStateChanged(mPhone.getPhoneId(), mSS);
        }

        if (hasGprsAttached || hasGprsDetached || hasRegistered || hasDeregistered) {
            logAttachChange();
        }

        if (hasGprsAttached) {
            mAttachedRegistrants.notifyRegistrants();
        }

        if (hasGprsDetached) {
            mDetachedRegistrants.notifyRegistrants();
        }

        if (hasRilDataRadioTechnologyChanged || hasRilVoiceRadioTechnologyChanged) {
            logRatChange();
        }

        if (hasDataRegStateChanged || hasRilDataRadioTechnologyChanged) {
            notifyDataRegStateRilRadioTechnologyChanged();

            if (ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN
                    == mSS.getRilDataRadioTechnology()) {
                mPhone.notifyDataConnection(Phone.REASON_IWLAN_AVAILABLE);
            } else {
                mPhone.notifyDataConnection(null);
            }
        }

        if (hasVoiceRoamingOn || hasVoiceRoamingOff || hasDataRoamingOn || hasDataRoamingOff) {
            logRoamingChange();
        }

        if (hasVoiceRoamingOn) {
            mVoiceRoamingOnRegistrants.notifyRegistrants();
        }

        if (hasVoiceRoamingOff) {
            mVoiceRoamingOffRegistrants.notifyRegistrants();
        }

        if (hasDataRoamingOn) {
            mDataRoamingOnRegistrants.notifyRegistrants();
        }

        if (hasDataRoamingOff) {
            mDataRoamingOffRegistrants.notifyRegistrants();
        }

        if (hasLocationChanged) {
            mPhone.notifyLocationChanged();
        }

        if (!isGprsConsistent(mSS.getDataRegState(), mSS.getVoiceRegState())) {
            if (!mStartedGprsRegCheck && !mReportedGprsNoReg) {
                mStartedGprsRegCheck = true;

                int check_period = Settings.Global.getInt(
                        mPhone.getContext().getContentResolver(),
                        Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS,
                        DEFAULT_GPRS_CHECK_PERIOD_MILLIS);
                sendMessageDelayed(obtainMessage(EVENT_CHECK_REPORT_GPRS),
                        check_period);
            }
        } else {
            mReportedGprsNoReg = false;
        }
    }

    protected void pollStateDoneCdma() {
        updateRoamingState();

        useDataRegStateForDataOnlyDevices();
        resetServiceStateInIwlanMode();
        if (DBG) log("pollStateDone: cdma oldSS=[" + mSS + "] newSS=[" + mNewSS + "]");

        boolean hasRegistered =
                mSS.getVoiceRegState() != ServiceState.STATE_IN_SERVICE
                        && mNewSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE;

        boolean hasCdmaDataConnectionAttached =
                mSS.getDataRegState() != ServiceState.STATE_IN_SERVICE
                        && mNewSS.getDataRegState() == ServiceState.STATE_IN_SERVICE;

        boolean hasCdmaDataConnectionDetached =
                mSS.getDataRegState() == ServiceState.STATE_IN_SERVICE
                        && mNewSS.getDataRegState() != ServiceState.STATE_IN_SERVICE;

        boolean hasCdmaDataConnectionChanged =
                mSS.getDataRegState() != mNewSS.getDataRegState();

        boolean hasLocationChanged = !mNewCellLoc.equals(mCellLoc);

        // ratchet the new tech up through it's rat family but don't drop back down
        // until cell change
        if (hasLocationChanged == false) {
            mRatRatcheter.ratchetRat(mSS, mNewSS);
        }

        boolean hasRilVoiceRadioTechnologyChanged =
                mSS.getRilVoiceRadioTechnology() != mNewSS.getRilVoiceRadioTechnology();

        boolean hasRilDataRadioTechnologyChanged =
                mSS.getRilDataRadioTechnology() != mNewSS.getRilDataRadioTechnology();

        boolean hasChanged = !mNewSS.equals(mSS);

        boolean hasVoiceRoamingOn = !mSS.getVoiceRoaming() && mNewSS.getVoiceRoaming();

        boolean hasVoiceRoamingOff = mSS.getVoiceRoaming() && !mNewSS.getVoiceRoaming();

        boolean hasDataRoamingOn = !mSS.getDataRoaming() && mNewSS.getDataRoaming();

        boolean hasDataRoamingOff = mSS.getDataRoaming() && !mNewSS.getDataRoaming();

        TelephonyManager tm =
                (TelephonyManager) mPhone.getContext().getSystemService(Context.TELEPHONY_SERVICE);

        // Add an event log when connection state changes
        if (mSS.getVoiceRegState() != mNewSS.getVoiceRegState() ||
                mSS.getDataRegState() != mNewSS.getDataRegState()) {
            EventLog.writeEvent(EventLogTags.CDMA_SERVICE_STATE_CHANGE,
                    mSS.getVoiceRegState(), mSS.getDataRegState(),
                    mNewSS.getVoiceRegState(), mNewSS.getDataRegState());
        }

        ServiceState tss;
        tss = mSS;
        mSS = mNewSS;
        mNewSS = tss;
        // clean slate for next time
        mNewSS.setStateOutOfService();

        CdmaCellLocation tcl = (CdmaCellLocation)mCellLoc;
        mCellLoc = mNewCellLoc;
        mNewCellLoc = tcl;

        if (hasRilVoiceRadioTechnologyChanged) {
            updatePhoneObject();
        }

        if (hasRilDataRadioTechnologyChanged) {
            tm.setDataNetworkTypeForPhone(mPhone.getPhoneId(), mSS.getRilDataRadioTechnology());

            if (ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN
                    == mSS.getRilDataRadioTechnology()) {
                log("pollStateDone: IWLAN enabled");
            }
        }

        if (hasRegistered) {
            mNetworkAttachedRegistrants.notifyRegistrants();
        }

        if (hasChanged) {
            updateSpnDisplay();

            String operatorNumeric;

            tm.setNetworkOperatorNameForPhone(mPhone.getPhoneId(), mSS.getOperatorAlphaLong());

            String prevOperatorNumeric = tm.getNetworkOperatorForPhone(mPhone.getPhoneId());
            operatorNumeric = mSS.getOperatorNumeric();

            // try to fix the invalid Operator Numeric
            if (isInvalidOperatorNumeric(operatorNumeric)) {
                int sid = mSS.getSystemId();
                operatorNumeric = fixUnknownMcc(operatorNumeric, sid);
            }

            tm.setNetworkOperatorNumericForPhone(mPhone.getPhoneId(), operatorNumeric);
            updateCarrierMccMncConfiguration(operatorNumeric,
                    prevOperatorNumeric, mPhone.getContext());

            if (isInvalidOperatorNumeric(operatorNumeric)) {
                if (DBG) log("operatorNumeric "+ operatorNumeric +"is invalid");
                tm.setNetworkCountryIsoForPhone(mPhone.getPhoneId(), "");
                mGotCountryCode = false;
            } else {
                String isoCountryCode = "";
                String mcc = operatorNumeric.substring(0, 3);
                try{
                    isoCountryCode = MccTable.countryCodeForMcc(Integer.parseInt(
                            operatorNumeric.substring(0, 3)));
                } catch ( NumberFormatException ex){
                    loge("pollStateDone: countryCodeForMcc error" + ex);
                } catch ( StringIndexOutOfBoundsException ex) {
                    loge("pollStateDone: countryCodeForMcc error" + ex);
                }

                tm.setNetworkCountryIsoForPhone(mPhone.getPhoneId(), isoCountryCode);
                mGotCountryCode = true;

                setOperatorIdd(operatorNumeric);

                if (shouldFixTimeZoneNow(mPhone, operatorNumeric, prevOperatorNumeric,
                        mNeedFixZoneAfterNitz)) {
                    fixTimeZone(isoCountryCode);
                }
            }

            tm.setNetworkRoamingForPhone(mPhone.getPhoneId(),
                    (mSS.getVoiceRoaming() || mSS.getDataRoaming()));

            // set roaming type
            setRoamingType(mSS);
            log("Broadcasting ServiceState : " + mSS);
            mPhone.notifyServiceStateChanged(mSS);

            TelephonyMetrics.getInstance().writeServiceStateChanged(mPhone.getPhoneId(), mSS);
        }

        if (hasCdmaDataConnectionAttached || hasCdmaDataConnectionDetached || hasRegistered) {
            logAttachChange();
        }

        if (hasCdmaDataConnectionAttached) {
            mAttachedRegistrants.notifyRegistrants();
        }

        if (hasCdmaDataConnectionDetached) {
            mDetachedRegistrants.notifyRegistrants();
        }

        if (hasRilDataRadioTechnologyChanged || hasRilVoiceRadioTechnologyChanged) {
            logRatChange();
        }

        if (hasCdmaDataConnectionChanged || hasRilDataRadioTechnologyChanged) {
            notifyDataRegStateRilRadioTechnologyChanged();
            if (ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN
                    == mSS.getRilDataRadioTechnology()) {
                mPhone.notifyDataConnection(Phone.REASON_IWLAN_AVAILABLE);
            } else {
                mPhone.notifyDataConnection(null);
            }
        }

        if (hasVoiceRoamingOn) {
            mVoiceRoamingOnRegistrants.notifyRegistrants();
        }

        if (hasVoiceRoamingOff) {
            mVoiceRoamingOffRegistrants.notifyRegistrants();
        }

        if (hasVoiceRoamingOn || hasVoiceRoamingOff || hasDataRoamingOn || hasDataRoamingOff) {
            logRoamingChange();
        }

        if (hasDataRoamingOn) {
            mDataRoamingOnRegistrants.notifyRegistrants();
        }

        if (hasDataRoamingOff) {
            mDataRoamingOffRegistrants.notifyRegistrants();
        }

        if (hasLocationChanged) {
            mPhone.notifyLocationChanged();
        }
        // TODO: Add CdmaCellIdenity updating, see CdmaLteServiceStateTracker.
    }

    protected void pollStateDoneCdmaLte() {
        updateRoamingState();

        if (Build.IS_DEBUGGABLE && SystemProperties.getBoolean(PROP_FORCE_ROAMING, false)) {
            mNewSS.setVoiceRoaming(true);
            mNewSS.setDataRoaming(true);
        }

        useDataRegStateForDataOnlyDevices();
        resetServiceStateInIwlanMode();
        log("pollStateDone: lte 1 ss=[" + mSS + "] newSS=[" + mNewSS + "]");

        boolean hasRegistered = mSS.getVoiceRegState() != ServiceState.STATE_IN_SERVICE
                && mNewSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE;

        boolean hasDeregistered = mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE
                && mNewSS.getVoiceRegState() != ServiceState.STATE_IN_SERVICE;

        boolean hasCdmaDataConnectionAttached =
                mSS.getDataRegState() != ServiceState.STATE_IN_SERVICE
                        && mNewSS.getDataRegState() == ServiceState.STATE_IN_SERVICE;

        boolean hasCdmaDataConnectionDetached =
                mSS.getDataRegState() == ServiceState.STATE_IN_SERVICE
                        && mNewSS.getDataRegState() != ServiceState.STATE_IN_SERVICE;

        boolean hasCdmaDataConnectionChanged =
                mSS.getDataRegState() != mNewSS.getDataRegState();

        boolean hasLocationChanged = !mNewCellLoc.equals(mCellLoc);

        // ratchet the new tech up through it's rat family but don't drop back down
        // until cell change
        if (hasLocationChanged == false) {
            mRatRatcheter.ratchetRat(mSS, mNewSS);
        }

        boolean hasVoiceRadioTechnologyChanged = mSS.getRilVoiceRadioTechnology()
                != mNewSS.getRilVoiceRadioTechnology();

        boolean hasDataRadioTechnologyChanged = mSS.getRilDataRadioTechnology()
                != mNewSS.getRilDataRadioTechnology();

        boolean hasChanged = !mNewSS.equals(mSS);

        boolean hasVoiceRoamingOn = !mSS.getVoiceRoaming() && mNewSS.getVoiceRoaming();

        boolean hasVoiceRoamingOff = mSS.getVoiceRoaming() && !mNewSS.getVoiceRoaming();

        boolean hasDataRoamingOn = !mSS.getDataRoaming() && mNewSS.getDataRoaming();

        boolean hasDataRoamingOff = mSS.getDataRoaming() && !mNewSS.getDataRoaming();

        boolean has4gHandoff =
                mNewSS.getDataRegState() == ServiceState.STATE_IN_SERVICE &&
                ((ServiceState.isLte(mSS.getRilDataRadioTechnology()) &&
                (mNewSS.getRilDataRadioTechnology() == ServiceState.RIL_RADIO_TECHNOLOGY_EHRPD)) ||
                ((mSS.getRilDataRadioTechnology() == ServiceState.RIL_RADIO_TECHNOLOGY_EHRPD) &&
                ServiceState.isLte(mNewSS.getRilDataRadioTechnology())));

        boolean hasMultiApnSupport =
                ((ServiceState.isLte(mNewSS.getRilDataRadioTechnology()) ||
                (mNewSS.getRilDataRadioTechnology() == ServiceState.RIL_RADIO_TECHNOLOGY_EHRPD)) &&
                (!ServiceState.isLte(mSS.getRilDataRadioTechnology()) &&
                (mSS.getRilDataRadioTechnology() != ServiceState.RIL_RADIO_TECHNOLOGY_EHRPD)));

        boolean hasLostMultiApnSupport =
                ((mNewSS.getRilDataRadioTechnology() >= ServiceState.RIL_RADIO_TECHNOLOGY_IS95A) &&
                (mNewSS.getRilDataRadioTechnology() <= ServiceState.RIL_RADIO_TECHNOLOGY_EVDO_A));

        TelephonyManager tm =
                (TelephonyManager) mPhone.getContext().getSystemService(Context.TELEPHONY_SERVICE);

        if (DBG) {
            log("pollStateDone:"
                    + " hasRegistered=" + hasRegistered
                    + " hasDeegistered=" + hasDeregistered
                    + " hasCdmaDataConnectionAttached=" + hasCdmaDataConnectionAttached
                    + " hasCdmaDataConnectionDetached=" + hasCdmaDataConnectionDetached
                    + " hasCdmaDataConnectionChanged=" + hasCdmaDataConnectionChanged
                    + " hasVoiceRadioTechnologyChanged= " + hasVoiceRadioTechnologyChanged
                    + " hasDataRadioTechnologyChanged=" + hasDataRadioTechnologyChanged
                    + " hasChanged=" + hasChanged
                    + " hasVoiceRoamingOn=" + hasVoiceRoamingOn
                    + " hasVoiceRoamingOff=" + hasVoiceRoamingOff
                    + " hasDataRoamingOn=" + hasDataRoamingOn
                    + " hasDataRoamingOff=" + hasDataRoamingOff
                    + " hasLocationChanged=" + hasLocationChanged
                    + " has4gHandoff = " + has4gHandoff
                    + " hasMultiApnSupport=" + hasMultiApnSupport
                    + " hasLostMultiApnSupport=" + hasLostMultiApnSupport);
        }
        // Add an event log when connection state changes
        if (mSS.getVoiceRegState() != mNewSS.getVoiceRegState()
                || mSS.getDataRegState() != mNewSS.getDataRegState()) {
            EventLog.writeEvent(EventLogTags.CDMA_SERVICE_STATE_CHANGE, mSS.getVoiceRegState(),
                    mSS.getDataRegState(), mNewSS.getVoiceRegState(), mNewSS.getDataRegState());
        }

        ServiceState tss;
        tss = mSS;
        mSS = mNewSS;
        mNewSS = tss;
        // clean slate for next time
        mNewSS.setStateOutOfService();

        CdmaCellLocation tcl = (CdmaCellLocation)mCellLoc;
        mCellLoc = mNewCellLoc;
        mNewCellLoc = tcl;

        mNewSS.setStateOutOfService(); // clean slate for next time

        if (hasVoiceRadioTechnologyChanged) {
            updatePhoneObject();
        }

        if (hasDataRadioTechnologyChanged) {
            tm.setDataNetworkTypeForPhone(mPhone.getPhoneId(), mSS.getRilDataRadioTechnology());

            if (ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN
                    == mSS.getRilDataRadioTechnology()) {
                log("pollStateDone: IWLAN enabled");
            }
        }

        if (hasRegistered) {
            mNetworkAttachedRegistrants.notifyRegistrants();
        }

        if (hasChanged) {
            updateSpnDisplay();

            String operatorNumeric;

            tm.setNetworkOperatorNameForPhone(mPhone.getPhoneId(), mSS.getOperatorAlphaLong());

            String prevOperatorNumeric = tm.getNetworkOperatorForPhone(mPhone.getPhoneId());
            operatorNumeric = mSS.getOperatorNumeric();
            // try to fix the invalid Operator Numeric
            if (isInvalidOperatorNumeric(operatorNumeric)) {
                int sid = mSS.getSystemId();
                operatorNumeric = fixUnknownMcc(operatorNumeric, sid);
            }
            tm.setNetworkOperatorNumericForPhone(mPhone.getPhoneId(), operatorNumeric);
            updateCarrierMccMncConfiguration(operatorNumeric,
                    prevOperatorNumeric, mPhone.getContext());

            if (isInvalidOperatorNumeric(operatorNumeric)) {
                if (DBG) log("operatorNumeric is null");
                tm.setNetworkCountryIsoForPhone(mPhone.getPhoneId(), "");
                mGotCountryCode = false;
            } else {
                String isoCountryCode = "";
                String mcc = operatorNumeric.substring(0, 3);
                try {
                    isoCountryCode = MccTable.countryCodeForMcc(Integer.parseInt(operatorNumeric
                            .substring(0, 3)));
                } catch (NumberFormatException ex) {
                    loge("countryCodeForMcc error" + ex);
                } catch (StringIndexOutOfBoundsException ex) {
                    loge("countryCodeForMcc error" + ex);
                }

                tm.setNetworkCountryIsoForPhone(mPhone.getPhoneId(), isoCountryCode);
                mGotCountryCode = true;

                setOperatorIdd(operatorNumeric);

                if (shouldFixTimeZoneNow(mPhone, operatorNumeric, prevOperatorNumeric,
                        mNeedFixZoneAfterNitz)) {
                    fixTimeZone(isoCountryCode);
                }
            }

            tm.setNetworkRoamingForPhone(mPhone.getPhoneId(),
                    (mSS.getVoiceRoaming() || mSS.getDataRoaming()));

            setRoamingType(mSS);
            log("Broadcasting ServiceState : " + mSS);
            mPhone.notifyServiceStateChanged(mSS);

            TelephonyMetrics.getInstance().writeServiceStateChanged(mPhone.getPhoneId(), mSS);
        }

        if (hasCdmaDataConnectionAttached || has4gHandoff || hasCdmaDataConnectionDetached ||
                hasRegistered || hasDeregistered) {
            logAttachChange();
        }

        if (hasCdmaDataConnectionAttached || has4gHandoff) {
            mAttachedRegistrants.notifyRegistrants();
        }

        if (hasCdmaDataConnectionDetached) {
            mDetachedRegistrants.notifyRegistrants();
        }

        if (hasDataRadioTechnologyChanged || hasVoiceRadioTechnologyChanged) {
            logRatChange();
        }

        if ((hasCdmaDataConnectionChanged || hasDataRadioTechnologyChanged)) {
            notifyDataRegStateRilRadioTechnologyChanged();
            if (ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN
                    == mSS.getRilDataRadioTechnology()) {
                mPhone.notifyDataConnection(Phone.REASON_IWLAN_AVAILABLE);
            } else {
                mPhone.notifyDataConnection(null);
            }
        }

        if (hasVoiceRoamingOn || hasVoiceRoamingOff || hasDataRoamingOn || hasDataRoamingOff) {
            logRoamingChange();
        }

        if (hasVoiceRoamingOn) {
            mVoiceRoamingOnRegistrants.notifyRegistrants();
        }

        if (hasVoiceRoamingOff) {
            mVoiceRoamingOffRegistrants.notifyRegistrants();
        }

        if (hasDataRoamingOn) {
            mDataRoamingOnRegistrants.notifyRegistrants();
        }

        if (hasDataRoamingOff) {
            mDataRoamingOffRegistrants.notifyRegistrants();
        }

        if (hasLocationChanged) {
            mPhone.notifyLocationChanged();
        }
    }

    private void updateOperatorNameFromEri() {
        if (mPhone.isPhoneTypeCdma()) {
            if ((mCi.getRadioState().isOn()) && (!mIsSubscriptionFromRuim)) {
                String eriText;
                // Now the Phone sees the new ServiceState so it can get the new ERI text
                if (mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE) {
                    eriText = mPhone.getCdmaEriText();
                } else {
                    // Note that ServiceState.STATE_OUT_OF_SERVICE is valid used for
                    // mRegistrationState 0,2,3 and 4
                    eriText = mPhone.getContext().getText(
                            com.android.internal.R.string.roamingTextSearching).toString();
                }
                mSS.setOperatorAlphaLong(eriText);
            }
        } else if (mPhone.isPhoneTypeCdmaLte()) {
            boolean hasBrandOverride = mUiccController.getUiccCard(getPhoneId()) != null &&
                    mUiccController.getUiccCard(getPhoneId()).getOperatorBrandOverride() != null;
            if (!hasBrandOverride && (mCi.getRadioState().isOn()) && (mPhone.isEriFileLoaded()) &&
                    (!ServiceState.isLte(mSS.getRilVoiceRadioTechnology()) ||
                            mPhone.getContext().getResources().getBoolean(com.android.internal.R.
                                    bool.config_LTE_eri_for_network_name))) {
                // Only when CDMA is in service, ERI will take effect
                String eriText = mSS.getOperatorAlphaLong();
                // Now the Phone sees the new ServiceState so it can get the new ERI text
                if (mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE) {
                    eriText = mPhone.getCdmaEriText();
                } else if (mSS.getVoiceRegState() == ServiceState.STATE_POWER_OFF) {
                    eriText = (mIccRecords != null) ? mIccRecords.getServiceProviderName() : null;
                    if (TextUtils.isEmpty(eriText)) {
                        // Sets operator alpha property by retrieving from
                        // build-time system property
                        eriText = SystemProperties.get("ro.cdma.home.operator.alpha");
                    }
                } else if (mSS.getDataRegState() != ServiceState.STATE_IN_SERVICE) {
                    // Note that ServiceState.STATE_OUT_OF_SERVICE is valid used
                    // for mRegistrationState 0,2,3 and 4
                    eriText = mPhone.getContext()
                            .getText(com.android.internal.R.string.roamingTextSearching).toString();
                }
                mSS.setOperatorAlphaLong(eriText);
            }

            if (mUiccApplcation != null && mUiccApplcation.getState() == AppState.APPSTATE_READY &&
                    mIccRecords != null && (mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE)
                    && !ServiceState.isLte(mSS.getRilVoiceRadioTechnology())) {
                // SIM is found on the device. If ERI roaming is OFF, and SID/NID matches
                // one configured in SIM, use operator name from CSIM record. Note that ERI, SID,
                // and NID are CDMA only, not applicable to LTE.
                boolean showSpn =
                        ((RuimRecords) mIccRecords).getCsimSpnDisplayCondition();
                int iconIndex = mSS.getCdmaEriIconIndex();

                if (showSpn && (iconIndex == EriInfo.ROAMING_INDICATOR_OFF) &&
                        isInHomeSidNid(mSS.getSystemId(), mSS.getNetworkId()) &&
                        mIccRecords != null) {
                    mSS.setOperatorAlphaLong(mIccRecords.getServiceProviderName());
                }
            }
        }
    }

    /**
     * Check whether the specified SID and NID pair appears in the HOME SID/NID list
     * read from NV or SIM.
     *
     * @return true if provided sid/nid pair belongs to operator's home network.
     */
    private boolean isInHomeSidNid(int sid, int nid) {
        // if SID/NID is not available, assume this is home network.
        if (isSidsAllZeros()) return true;

        // length of SID/NID shold be same
        if (mHomeSystemId.length != mHomeNetworkId.length) return true;

        if (sid == 0) return true;

        for (int i = 0; i < mHomeSystemId.length; i++) {
            // Use SID only if NID is a reserved value.
            // SID 0 and NID 0 and 65535 are reserved. (C.0005 2.6.5.2)
            if ((mHomeSystemId[i] == sid) &&
                    ((mHomeNetworkId[i] == 0) || (mHomeNetworkId[i] == 65535) ||
                            (nid == 0) || (nid == 65535) || (mHomeNetworkId[i] == nid))) {
                return true;
            }
        }
        // SID/NID are not in the list. So device is not in home network
        return false;
    }

    protected void setOperatorIdd(String operatorNumeric) {
        // Retrieve the current country information
        // with the MCC got from opeatorNumeric.
        String idd = mHbpcdUtils.getIddByMcc(
                Integer.parseInt(operatorNumeric.substring(0,3)));
        if (idd != null && !idd.isEmpty()) {
            mPhone.setSystemProperty(TelephonyProperties.PROPERTY_OPERATOR_IDP_STRING,
                    idd);
        } else {
            // use default "+", since we don't know the current IDP
            mPhone.setSystemProperty(TelephonyProperties.PROPERTY_OPERATOR_IDP_STRING, "+");
        }
    }

    protected boolean isInvalidOperatorNumeric(String operatorNumeric) {
        return operatorNumeric == null || operatorNumeric.length() < 5 ||
                operatorNumeric.startsWith(INVALID_MCC);
    }

    protected String fixUnknownMcc(String operatorNumeric, int sid) {
        if (sid <= 0) {
            // no cdma information is available, do nothing
            return operatorNumeric;
        }

        // resolve the mcc from sid;
        // if mSavedTimeZone is null, TimeZone would get the default timeZone,
        // and the fixTimeZone couldn't help, because it depends on operator Numeric;
        // if the sid is conflict and timezone is unavailable, the mcc may be not right.
        boolean isNitzTimeZone = false;
        int timeZone = 0;
        TimeZone tzone = null;
        if (mSavedTimeZone != null) {
            timeZone =
                    TimeZone.getTimeZone(mSavedTimeZone).getRawOffset()/MS_PER_HOUR;
            isNitzTimeZone = true;
        } else {
            tzone = getNitzTimeZone(mZoneOffset, mZoneDst, mZoneTime);
            if (tzone != null)
                timeZone = tzone.getRawOffset()/MS_PER_HOUR;
        }

        int mcc = mHbpcdUtils.getMcc(sid,
                timeZone, (mZoneDst ? 1 : 0), isNitzTimeZone);
        if (mcc > 0) {
            operatorNumeric = Integer.toString(mcc) + DEFAULT_MNC;
        }
        return operatorNumeric;
    }

    protected void fixTimeZone(String isoCountryCode) {
        TimeZone zone = null;
        // If the offset is (0, false) and the time zone property
        // is set, use the time zone property rather than GMT.
        String zoneName = SystemProperties.get(TIMEZONE_PROPERTY);
        if (DBG) {
            log("fixTimeZone zoneName='" + zoneName +
                    "' mZoneOffset=" + mZoneOffset + " mZoneDst=" + mZoneDst +
                    " iso-cc='" + isoCountryCode +
                    "' iso-cc-idx=" + Arrays.binarySearch(GMT_COUNTRY_CODES, isoCountryCode));
        }
        if ("".equals(isoCountryCode) && mNeedFixZoneAfterNitz) {
            // Country code not found.  This is likely a test network.
            // Get a TimeZone based only on the NITZ parameters (best guess).
            zone = getNitzTimeZone(mZoneOffset, mZoneDst, mZoneTime);
            if (DBG) log("pollStateDone: using NITZ TimeZone");
        } else if ((mZoneOffset == 0) && (mZoneDst == false) && (zoneName != null)
                && (zoneName.length() > 0)
                && (Arrays.binarySearch(GMT_COUNTRY_CODES, isoCountryCode) < 0)) {
            // For NITZ string without time zone,
            // need adjust time to reflect default time zone setting
            zone = TimeZone.getDefault();
            if (mNeedFixZoneAfterNitz) {
                long ctm = System.currentTimeMillis();
                long tzOffset = zone.getOffset(ctm);
                if (DBG) {
                    log("fixTimeZone: tzOffset=" + tzOffset +
                            " ltod=" + TimeUtils.logTimeOfDay(ctm));
                }
                if (getAutoTime()) {
                    long adj = ctm - tzOffset;
                    if (DBG) log("fixTimeZone: adj ltod=" + TimeUtils.logTimeOfDay(adj));
                    setAndBroadcastNetworkSetTime(adj);
                } else {
                    // Adjust the saved NITZ time to account for tzOffset.
                    mSavedTime = mSavedTime - tzOffset;
                    if (DBG) log("fixTimeZone: adj mSavedTime=" + mSavedTime);
                }
            }
            if (DBG) log("fixTimeZone: using default TimeZone");
        } else {
            zone = TimeUtils.getTimeZone(mZoneOffset, mZoneDst, mZoneTime, isoCountryCode);
            if (DBG) log("fixTimeZone: using getTimeZone(off, dst, time, iso)");
        }

        mNeedFixZoneAfterNitz = false;

        if (zone != null) {
            log("fixTimeZone: zone != null zone.getID=" + zone.getID());
            if (getAutoTimeZone()) {
                setAndBroadcastNetworkSetTimeZone(zone.getID());
            } else {
                log("fixTimeZone: skip changing zone as getAutoTimeZone was false");
            }
            saveNitzTimeZone(zone.getID());
        } else {
            log("fixTimeZone: zone == null, do nothing for zone");
        }
    }

    /**
     * Check if GPRS got registered while voice is registered.
     *
     * @param dataRegState i.e. CGREG in GSM
     * @param voiceRegState i.e. CREG in GSM
     * @return false if device only register to voice but not gprs
     */
    private boolean isGprsConsistent(int dataRegState, int voiceRegState) {
        return !((voiceRegState == ServiceState.STATE_IN_SERVICE) &&
                (dataRegState != ServiceState.STATE_IN_SERVICE));
    }

    /**
     * Returns a TimeZone object based only on parameters from the NITZ string.
     */
    private TimeZone getNitzTimeZone(int offset, boolean dst, long when) {
        TimeZone guess = findTimeZone(offset, dst, when);
        if (guess == null) {
            // Couldn't find a proper timezone.  Perhaps the DST data is wrong.
            guess = findTimeZone(offset, !dst, when);
        }
        if (DBG) log("getNitzTimeZone returning " + (guess == null ? guess : guess.getID()));
        return guess;
    }

    private TimeZone findTimeZone(int offset, boolean dst, long when) {
        int rawOffset = offset;
        if (dst) {
            rawOffset -= MS_PER_HOUR;
        }
        String[] zones = TimeZone.getAvailableIDs(rawOffset);
        TimeZone guess = null;
        Date d = new Date(when);
        for (String zone : zones) {
            TimeZone tz = TimeZone.getTimeZone(zone);
            if (tz.getOffset(when) == offset &&
                    tz.inDaylightTime(d) == dst) {
                guess = tz;
                break;
            }
        }

        return guess;
    }

    /** code is registration state 0-5 from TS 27.007 7.2 */
    private int regCodeToServiceState(int code) {
        switch (code) {
            case 0:
            case 2: // 2 is "searching"
            case 3: // 3 is "registration denied"
            case 4: // 4 is "unknown" no vaild in current baseband
            case 10:// same as 0, but indicates that emergency call is possible.
            case 12:// same as 2, but indicates that emergency call is possible.
            case 13:// same as 3, but indicates that emergency call is possible.
            case 14:// same as 4, but indicates that emergency call is possible.
                return ServiceState.STATE_OUT_OF_SERVICE;

            case 1:
            case 5: // 5 is "registered, roaming"
                return ServiceState.STATE_IN_SERVICE;

            default:
                loge("regCodeToServiceState: unexpected service state " + code);
                return ServiceState.STATE_OUT_OF_SERVICE;
        }
    }

    /**
     * code is registration state 0-5 from TS 27.007 7.2
     * returns true if registered roam, false otherwise
     */
    private boolean regCodeIsRoaming (int code) {
        return ServiceState.RIL_REG_STATE_ROAMING == code;
    }

    private boolean isSameOperatorNameFromSimAndSS(ServiceState s) {
        String spn = ((TelephonyManager) mPhone.getContext().
                getSystemService(Context.TELEPHONY_SERVICE)).
                getSimOperatorNameForPhone(getPhoneId());

        // NOTE: in case of RUIM we should completely ignore the ERI data file and
        // mOperatorAlphaLong is set from RIL_REQUEST_OPERATOR response 0 (alpha ONS)
        String onsl = s.getOperatorAlphaLong();
        String onss = s.getOperatorAlphaShort();

        boolean equalsOnsl = !TextUtils.isEmpty(spn) && spn.equalsIgnoreCase(onsl);
        boolean equalsOnss = !TextUtils.isEmpty(spn) && spn.equalsIgnoreCase(onss);

        return (equalsOnsl || equalsOnss);
    }

    /**
     * Set roaming state if operator mcc is the same as sim mcc
     * and ons is not different from spn
     *
     * @param s ServiceState hold current ons
     * @return true if same operator
     */
    private boolean isSameNamedOperators(ServiceState s) {
        return currentMccEqualsSimMcc(s) && isSameOperatorNameFromSimAndSS(s);
    }

    /**
     * Compare SIM MCC with Operator MCC
     *
     * @param s ServiceState hold current ons
     * @return true if both are same
     */
    private boolean currentMccEqualsSimMcc(ServiceState s) {
        String simNumeric = ((TelephonyManager) mPhone.getContext().
                getSystemService(Context.TELEPHONY_SERVICE)).
                getSimOperatorNumericForPhone(getPhoneId());
        String operatorNumeric = s.getOperatorNumeric();
        boolean equalsMcc = true;

        try {
            equalsMcc = simNumeric.substring(0, 3).
                    equals(operatorNumeric.substring(0, 3));
        } catch (Exception e){
        }
        return equalsMcc;
    }

    /**
     * Do not set roaming state in case of oprators considered non-roaming.
     *
     * Can use mcc or mcc+mnc as item of config_operatorConsideredNonRoaming.
     * For example, 302 or 21407. If mcc or mcc+mnc match with operator,
     * don't set roaming state.
     *
     * @param s ServiceState hold current ons
     * @return false for roaming state set
     */
    private boolean isOperatorConsideredNonRoaming(ServiceState s) {
        String operatorNumeric = s.getOperatorNumeric();
        String[] numericArray = mPhone.getContext().getResources().getStringArray(
                com.android.internal.R.array.config_operatorConsideredNonRoaming);

        if (numericArray.length == 0 || operatorNumeric == null) {
            return false;
        }

        for (String numeric : numericArray) {
            if (operatorNumeric.startsWith(numeric)) {
                return true;
            }
        }
        return false;
    }

    private boolean isOperatorConsideredRoaming(ServiceState s) {
        String operatorNumeric = s.getOperatorNumeric();
        String[] numericArray = mPhone.getContext().getResources().getStringArray(
                com.android.internal.R.array.config_sameNamedOperatorConsideredRoaming);

        if (numericArray.length == 0 || operatorNumeric == null) {
            return false;
        }

        for (String numeric : numericArray) {
            if (operatorNumeric.startsWith(numeric)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Set restricted state based on the OnRestrictedStateChanged notification
     * If any voice or packet restricted state changes, trigger a UI
     * notification and notify registrants when sim is ready.
     *
     * @param ar an int value of RIL_RESTRICTED_STATE_*
     */
    private void onRestrictedStateChanged(AsyncResult ar) {
        RestrictedState newRs = new RestrictedState();

        if (DBG) log("onRestrictedStateChanged: E rs "+ mRestrictedState);

        if (ar.exception == null) {
            int[] ints = (int[])ar.result;
            int state = ints[0];

            newRs.setCsEmergencyRestricted(
                    ((state & RILConstants.RIL_RESTRICTED_STATE_CS_EMERGENCY) != 0) ||
                            ((state & RILConstants.RIL_RESTRICTED_STATE_CS_ALL) != 0) );
            //ignore the normal call and data restricted state before SIM READY
            if (mUiccApplcation != null && mUiccApplcation.getState() == AppState.APPSTATE_READY) {
                newRs.setCsNormalRestricted(
                        ((state & RILConstants.RIL_RESTRICTED_STATE_CS_NORMAL) != 0) ||
                                ((state & RILConstants.RIL_RESTRICTED_STATE_CS_ALL) != 0) );
                newRs.setPsRestricted(
                        (state & RILConstants.RIL_RESTRICTED_STATE_PS_ALL)!= 0);
            }

            if (DBG) log("onRestrictedStateChanged: new rs "+ newRs);

            if (!mRestrictedState.isPsRestricted() && newRs.isPsRestricted()) {
                mPsRestrictEnabledRegistrants.notifyRegistrants();
                setNotification(PS_ENABLED);
            } else if (mRestrictedState.isPsRestricted() && !newRs.isPsRestricted()) {
                mPsRestrictDisabledRegistrants.notifyRegistrants();
                setNotification(PS_DISABLED);
            }

            /**
             * There are two kind of cs restriction, normal and emergency. So
             * there are 4 x 4 combinations in current and new restricted states
             * and we only need to notify when state is changed.
             */
            if (mRestrictedState.isCsRestricted()) {
                if (!newRs.isCsRestricted()) {
                    // remove all restriction
                    setNotification(CS_DISABLED);
                } else if (!newRs.isCsNormalRestricted()) {
                    // remove normal restriction
                    setNotification(CS_EMERGENCY_ENABLED);
                } else if (!newRs.isCsEmergencyRestricted()) {
                    // remove emergency restriction
                    setNotification(CS_NORMAL_ENABLED);
                }
            } else if (mRestrictedState.isCsEmergencyRestricted() &&
                    !mRestrictedState.isCsNormalRestricted()) {
                if (!newRs.isCsRestricted()) {
                    // remove all restriction
                    setNotification(CS_DISABLED);
                } else if (newRs.isCsRestricted()) {
                    // enable all restriction
                    setNotification(CS_ENABLED);
                } else if (newRs.isCsNormalRestricted()) {
                    // remove emergency restriction and enable normal restriction
                    setNotification(CS_NORMAL_ENABLED);
                }
            } else if (!mRestrictedState.isCsEmergencyRestricted() &&
                    mRestrictedState.isCsNormalRestricted()) {
                if (!newRs.isCsRestricted()) {
                    // remove all restriction
                    setNotification(CS_DISABLED);
                } else if (newRs.isCsRestricted()) {
                    // enable all restriction
                    setNotification(CS_ENABLED);
                } else if (newRs.isCsEmergencyRestricted()) {
                    // remove normal restriction and enable emergency restriction
                    setNotification(CS_EMERGENCY_ENABLED);
                }
            } else {
                if (newRs.isCsRestricted()) {
                    // enable all restriction
                    setNotification(CS_ENABLED);
                } else if (newRs.isCsEmergencyRestricted()) {
                    // enable emergency restriction
                    setNotification(CS_EMERGENCY_ENABLED);
                } else if (newRs.isCsNormalRestricted()) {
                    // enable normal restriction
                    setNotification(CS_NORMAL_ENABLED);
                }
            }

            mRestrictedState = newRs;
        }
        log("onRestrictedStateChanged: X rs "+ mRestrictedState);
    }

    /**
     * @return the current cell location information. Prefer Gsm location
     * information if available otherwise return LTE location information
     */
    public CellLocation getCellLocation() {
        if (((GsmCellLocation)mCellLoc).getLac() >= 0 &&
                ((GsmCellLocation)mCellLoc).getCid() >= 0) {
            if (DBG) log("getCellLocation(): X good mCellLoc=" + mCellLoc);
            return mCellLoc;
        } else {
            List<CellInfo> result = getAllCellInfo();
            if (result != null) {
                // A hack to allow tunneling of LTE information via GsmCellLocation
                // so that older Network Location Providers can return some information
                // on LTE only networks, see bug 9228974.
                //
                // We'll search the return CellInfo array preferring GSM/WCDMA
                // data, but if there is none we'll tunnel the first LTE information
                // in the list.
                //
                // The tunnel'd LTE information is returned as follows:
                //   LAC = TAC field
                //   CID = CI field
                //   PSC = 0.
                GsmCellLocation cellLocOther = new GsmCellLocation();
                for (CellInfo ci : result) {
                    if (ci instanceof CellInfoGsm) {
                        CellInfoGsm cellInfoGsm = (CellInfoGsm)ci;
                        CellIdentityGsm cellIdentityGsm = cellInfoGsm.getCellIdentity();
                        cellLocOther.setLacAndCid(cellIdentityGsm.getLac(),
                                cellIdentityGsm.getCid());
                        cellLocOther.setPsc(cellIdentityGsm.getPsc());
                        if (DBG) log("getCellLocation(): X ret GSM info=" + cellLocOther);
                        return cellLocOther;
                    } else if (ci instanceof CellInfoWcdma) {
                        CellInfoWcdma cellInfoWcdma = (CellInfoWcdma)ci;
                        CellIdentityWcdma cellIdentityWcdma = cellInfoWcdma.getCellIdentity();
                        cellLocOther.setLacAndCid(cellIdentityWcdma.getLac(),
                                cellIdentityWcdma.getCid());
                        cellLocOther.setPsc(cellIdentityWcdma.getPsc());
                        if (DBG) log("getCellLocation(): X ret WCDMA info=" + cellLocOther);
                        return cellLocOther;
                    } else if ((ci instanceof CellInfoLte) &&
                            ((cellLocOther.getLac() < 0) || (cellLocOther.getCid() < 0))) {
                        // We'll return the first good LTE info we get if there is no better answer
                        CellInfoLte cellInfoLte = (CellInfoLte)ci;
                        CellIdentityLte cellIdentityLte = cellInfoLte.getCellIdentity();
                        if ((cellIdentityLte.getTac() != Integer.MAX_VALUE)
                                && (cellIdentityLte.getCi() != Integer.MAX_VALUE)) {
                            cellLocOther.setLacAndCid(cellIdentityLte.getTac(),
                                    cellIdentityLte.getCi());
                            cellLocOther.setPsc(0);
                            if (DBG) {
                                log("getCellLocation(): possible LTE cellLocOther=" + cellLocOther);
                            }
                        }
                    }
                }
                if (DBG) {
                    log("getCellLocation(): X ret best answer cellLocOther=" + cellLocOther);
                }
                return cellLocOther;
            } else {
                if (DBG) {
                    log("getCellLocation(): X empty mCellLoc and CellInfo mCellLoc=" + mCellLoc);
                }
                return mCellLoc;
            }
        }
    }

    /**
     * nitzReceiveTime is time_t that the NITZ time was posted
     */
    private void setTimeFromNITZString (String nitz, long nitzReceiveTime) {
        // "yy/mm/dd,hh:mm:ss(+/-)tz"
        // tz is in number of quarter-hours

        long start = SystemClock.elapsedRealtime();
        if (DBG) {log("NITZ: " + nitz + "," + nitzReceiveTime +
                " start=" + start + " delay=" + (start - nitzReceiveTime));
        }

        try {
            /* NITZ time (hour:min:sec) will be in UTC but it supplies the timezone
             * offset as well (which we won't worry about until later) */
            Calendar c = Calendar.getInstance(TimeZone.getTimeZone("GMT"));

            c.clear();
            c.set(Calendar.DST_OFFSET, 0);

            String[] nitzSubs = nitz.split("[/:,+-]");

            int year = 2000 + Integer.parseInt(nitzSubs[0]);
            if (year > MAX_NITZ_YEAR) {
                if (DBG) loge("NITZ year: " + year + " exceeds limit, skip NITZ time update");
                return;
            }
            c.set(Calendar.YEAR, year);

            // month is 0 based!
            int month = Integer.parseInt(nitzSubs[1]) - 1;
            c.set(Calendar.MONTH, month);

            int date = Integer.parseInt(nitzSubs[2]);
            c.set(Calendar.DATE, date);

            int hour = Integer.parseInt(nitzSubs[3]);
            c.set(Calendar.HOUR, hour);

            int minute = Integer.parseInt(nitzSubs[4]);
            c.set(Calendar.MINUTE, minute);

            int second = Integer.parseInt(nitzSubs[5]);
            c.set(Calendar.SECOND, second);

            boolean sign = (nitz.indexOf('-') == -1);

            int tzOffset = Integer.parseInt(nitzSubs[6]);

            int dst = (nitzSubs.length >= 8 ) ? Integer.parseInt(nitzSubs[7]) : 0;

            // The zone offset received from NITZ is for current local time,
            // so DST correction is already applied.  Don't add it again.
            //
            // tzOffset += dst * 4;
            //
            // We could unapply it if we wanted the raw offset.

            tzOffset = (sign ? 1 : -1) * tzOffset * 15 * 60 * 1000;

            TimeZone    zone = null;

            // As a special extension, the Android emulator appends the name of
            // the host computer's timezone to the nitz string. this is zoneinfo
            // timezone name of the form Area!Location or Area!Location!SubLocation
            // so we need to convert the ! into /
            if (nitzSubs.length >= 9) {
                String  tzname = nitzSubs[8].replace('!','/');
                zone = TimeZone.getTimeZone( tzname );
            }

            String iso = ((TelephonyManager) mPhone.getContext().
                    getSystemService(Context.TELEPHONY_SERVICE)).
                    getNetworkCountryIsoForPhone(mPhone.getPhoneId());

            if (zone == null) {

                if (mGotCountryCode) {
                    if (iso != null && iso.length() > 0) {
                        zone = TimeUtils.getTimeZone(tzOffset, dst != 0,
                                c.getTimeInMillis(),
                                iso);
                    } else {
                        // We don't have a valid iso country code.  This is
                        // most likely because we're on a test network that's
                        // using a bogus MCC (eg, "001"), so get a TimeZone
                        // based only on the NITZ parameters.
                        zone = getNitzTimeZone(tzOffset, (dst != 0), c.getTimeInMillis());
                    }
                }
            }

            if ((zone == null) || (mZoneOffset != tzOffset) || (mZoneDst != (dst != 0))){
                // We got the time before the country or the zone has changed
                // so we don't know how to identify the DST rules yet.  Save
                // the information and hope to fix it up later.

                mNeedFixZoneAfterNitz = true;
                mZoneOffset  = tzOffset;
                mZoneDst     = dst != 0;
                mZoneTime    = c.getTimeInMillis();
            }
            if (DBG) {
                log("NITZ: tzOffset=" + tzOffset + " dst=" + dst + " zone=" +
                        (zone!=null ? zone.getID() : "NULL") +
                        " iso=" + iso + " mGotCountryCode=" + mGotCountryCode +
                        " mNeedFixZoneAfterNitz=" + mNeedFixZoneAfterNitz);
            }

            if (zone != null) {
                if (getAutoTimeZone()) {
                    setAndBroadcastNetworkSetTimeZone(zone.getID());
                }
                saveNitzTimeZone(zone.getID());
            }

            String ignore = SystemProperties.get("gsm.ignore-nitz");
            if (ignore != null && ignore.equals("yes")) {
                log("NITZ: Not setting clock because gsm.ignore-nitz is set");
                return;
            }

            try {
                mWakeLock.acquire();

                if (!mPhone.isPhoneTypeGsm() || getAutoTime()) {
                    long millisSinceNitzReceived
                            = SystemClock.elapsedRealtime() - nitzReceiveTime;

                    if (millisSinceNitzReceived < 0) {
                        // Sanity check: something is wrong
                        if (DBG) {
                            log("NITZ: not setting time, clock has rolled "
                                    + "backwards since NITZ time was received, "
                                    + nitz);
                        }
                        return;
                    }

                    if (millisSinceNitzReceived > Integer.MAX_VALUE) {
                        // If the time is this far off, something is wrong > 24 days!
                        if (DBG) {
                            log("NITZ: not setting time, processing has taken "
                                    + (millisSinceNitzReceived / (1000 * 60 * 60 * 24))
                                    + " days");
                        }
                        return;
                    }

                    // Note: with range checks above, cast to int is safe
                    c.add(Calendar.MILLISECOND, (int)millisSinceNitzReceived);

                    if (DBG) {
                        log("NITZ: Setting time of day to " + c.getTime()
                                + " NITZ receive delay(ms): " + millisSinceNitzReceived
                                + " gained(ms): "
                                + (c.getTimeInMillis() - System.currentTimeMillis())
                                + " from " + nitz);
                    }
                    if (mPhone.isPhoneTypeGsm()) {
                        setAndBroadcastNetworkSetTime(c.getTimeInMillis());
                        Rlog.i(LOG_TAG, "NITZ: after Setting time of day");
                    } else {
                        if (getAutoTime()) {
                            /**
                             * Update system time automatically
                             */
                            long gained = c.getTimeInMillis() - System.currentTimeMillis();
                            long timeSinceLastUpdate = SystemClock.elapsedRealtime() - mSavedAtTime;
                            int nitzUpdateSpacing = Settings.Global.getInt(mCr,
                                    Settings.Global.NITZ_UPDATE_SPACING, mNitzUpdateSpacing);
                            int nitzUpdateDiff = Settings.Global.getInt(mCr,
                                    Settings.Global.NITZ_UPDATE_DIFF, mNitzUpdateDiff);

                            if ((mSavedAtTime == 0) || (timeSinceLastUpdate > nitzUpdateSpacing)
                                    || (Math.abs(gained) > nitzUpdateDiff)) {
                                if (DBG) {
                                    log("NITZ: Auto updating time of day to " + c.getTime()
                                            + " NITZ receive delay=" + millisSinceNitzReceived
                                            + "ms gained=" + gained + "ms from " + nitz);
                                }

                                setAndBroadcastNetworkSetTime(c.getTimeInMillis());
                            } else {
                                if (DBG) {
                                    log("NITZ: ignore, a previous update was "
                                            + timeSinceLastUpdate + "ms ago and gained=" + gained + "ms");
                                }
                                return;
                            }
                        }
                    }
                }
                SystemProperties.set("gsm.nitz.time", String.valueOf(c.getTimeInMillis()));
                saveNitzTime(c.getTimeInMillis());
                mNitzUpdatedTime = true;
            } finally {
                if (DBG) {
                    long end = SystemClock.elapsedRealtime();
                    log("NITZ: end=" + end + " dur=" + (end - start));
                }
                mWakeLock.release();
            }
        } catch (RuntimeException ex) {
            loge("NITZ: Parsing NITZ time " + nitz + " ex=" + ex);
        }
    }

    private boolean getAutoTime() {
        try {
            return Settings.Global.getInt(mCr, Settings.Global.AUTO_TIME) > 0;
        } catch (Settings.SettingNotFoundException snfe) {
            return true;
        }
    }

    private boolean getAutoTimeZone() {
        try {
            return Settings.Global.getInt(mCr, Settings.Global.AUTO_TIME_ZONE) > 0;
        } catch (Settings.SettingNotFoundException snfe) {
            return true;
        }
    }

    private void saveNitzTimeZone(String zoneId) {
        mSavedTimeZone = zoneId;
    }

    private void saveNitzTime(long time) {
        mSavedTime = time;
        mSavedAtTime = SystemClock.elapsedRealtime();
    }

    /**
     * Set the timezone and send out a sticky broadcast so the system can
     * determine if the timezone was set by the carrier.
     *
     * @param zoneId timezone set by carrier
     */
    private void setAndBroadcastNetworkSetTimeZone(String zoneId) {
        if (DBG) log("setAndBroadcastNetworkSetTimeZone: setTimeZone=" + zoneId);
        AlarmManager alarm =
                (AlarmManager) mPhone.getContext().getSystemService(Context.ALARM_SERVICE);
        alarm.setTimeZone(zoneId);
        Intent intent = new Intent(TelephonyIntents.ACTION_NETWORK_SET_TIMEZONE);
        intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
        intent.putExtra("time-zone", zoneId);
        mPhone.getContext().sendStickyBroadcastAsUser(intent, UserHandle.ALL);
        if (DBG) {
            log("setAndBroadcastNetworkSetTimeZone: call alarm.setTimeZone and broadcast zoneId=" +
                    zoneId);
        }
    }

    /**
     * Set the time and Send out a sticky broadcast so the system can determine
     * if the time was set by the carrier.
     *
     * @param time time set by network
     */
    private void setAndBroadcastNetworkSetTime(long time) {
        if (DBG) log("setAndBroadcastNetworkSetTime: time=" + time + "ms");
        SystemClock.setCurrentTimeMillis(time);
        Intent intent = new Intent(TelephonyIntents.ACTION_NETWORK_SET_TIME);
        intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
        intent.putExtra("time", time);
        mPhone.getContext().sendStickyBroadcastAsUser(intent, UserHandle.ALL);

        TelephonyMetrics.getInstance().writeNITZEvent(mPhone.getPhoneId(), time);
    }

    private void revertToNitzTime() {
        if (Settings.Global.getInt(mCr, Settings.Global.AUTO_TIME, 0) == 0) {
            return;
        }
        if (DBG) {
            log("Reverting to NITZ Time: mSavedTime=" + mSavedTime + " mSavedAtTime=" +
                    mSavedAtTime);
        }
        if (mSavedTime != 0 && mSavedAtTime != 0) {
            setAndBroadcastNetworkSetTime(mSavedTime
                    + (SystemClock.elapsedRealtime() - mSavedAtTime));
        }
    }

    private void revertToNitzTimeZone() {
        if (Settings.Global.getInt(mCr, Settings.Global.AUTO_TIME_ZONE, 0) == 0) {
            return;
        }
        if (DBG) log("Reverting to NITZ TimeZone: tz='" + mSavedTimeZone);
        if (mSavedTimeZone != null) {
            setAndBroadcastNetworkSetTimeZone(mSavedTimeZone);
        }
    }

    /**
     * Post a notification to NotificationManager for restricted state
     *
     * @param notifyType is one state of PS/CS_*_ENABLE/DISABLE
     */
    private void setNotification(int notifyType) {
        if (DBG) log("setNotification: create notification " + notifyType);

        // Needed because sprout RIL sends these when they shouldn't?
        boolean isSetNotification = mPhone.getContext().getResources().getBoolean(
                com.android.internal.R.bool.config_user_notification_of_restrictied_mobile_access);
        if (!isSetNotification) {
            if (DBG) log("Ignore all the notifications");
            return;
        }

        Context context = mPhone.getContext();


        CharSequence details = "";
        CharSequence title = context.getText(com.android.internal.R.string.RestrictedOnData);
        int notificationId = CS_NOTIFICATION;

        switch (notifyType) {
            case PS_ENABLED:
                long dataSubId = SubscriptionManager.getDefaultDataSubscriptionId();
                if (dataSubId != mPhone.getSubId()) {
                    return;
                }
                notificationId = PS_NOTIFICATION;
                details = context.getText(com.android.internal.R.string.RestrictedOnData);
                break;
            case PS_DISABLED:
                notificationId = PS_NOTIFICATION;
                break;
            case CS_ENABLED:
                details = context.getText(com.android.internal.R.string.RestrictedOnAllVoice);
                break;
            case CS_NORMAL_ENABLED:
                details = context.getText(com.android.internal.R.string.RestrictedOnNormal);
                break;
            case CS_EMERGENCY_ENABLED:
                details = context.getText(com.android.internal.R.string.RestrictedOnEmergency);
                break;
            case CS_DISABLED:
                // do nothing and cancel the notification later
                break;
        }

        if (DBG) log("setNotification: put notification " + title + " / " +details);
        mNotification = new Notification.Builder(context)
                .setWhen(System.currentTimeMillis())
                .setAutoCancel(true)
                .setSmallIcon(com.android.internal.R.drawable.stat_sys_warning)
                .setTicker(title)
                .setColor(context.getResources().getColor(
                        com.android.internal.R.color.system_notification_accent_color))
                .setContentTitle(title)
                .setContentText(details)
                .build();

        NotificationManager notificationManager = (NotificationManager)
                context.getSystemService(Context.NOTIFICATION_SERVICE);

        if (notifyType == PS_DISABLED || notifyType == CS_DISABLED) {
            // cancel previous post notification
            notificationManager.cancel(notificationId);
        } else {
            // update restricted state notification
            notificationManager.notify(notificationId, mNotification);
        }
    }

    private UiccCardApplication getUiccCardApplication() {
        if (mPhone.isPhoneTypeGsm()) {
            return mUiccController.getUiccCardApplication(mPhone.getPhoneId(),
                    UiccController.APP_FAM_3GPP);
        } else {
            return mUiccController.getUiccCardApplication(mPhone.getPhoneId(),
                    UiccController.APP_FAM_3GPP2);
        }
    }

    private void queueNextSignalStrengthPoll() {
        if (mDontPollSignalStrength) {
            // The radio is telling us about signal strength changes
            // we don't have to ask it
            return;
        }

        Message msg;

        msg = obtainMessage();
        msg.what = EVENT_POLL_SIGNAL_STRENGTH;

        long nextTime;

        // TODO Don't poll signal strength if screen is off
        sendMessageDelayed(msg, POLL_PERIOD_MILLIS);
    }

    private void notifyCdmaSubscriptionInfoReady() {
        if (mCdmaForSubscriptionInfoReadyRegistrants != null) {
            if (DBG) log("CDMA_SUBSCRIPTION: call notifyRegistrants()");
            mCdmaForSubscriptionInfoReadyRegistrants.notifyRegistrants();
        }
    }

    /**
     * Registration point for transition into DataConnection attached.
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForDataConnectionAttached(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mAttachedRegistrants.add(r);

        if (getCurrentDataConnectionState() == ServiceState.STATE_IN_SERVICE) {
            r.notifyRegistrant();
        }
    }
    public void unregisterForDataConnectionAttached(Handler h) {
        mAttachedRegistrants.remove(h);
    }

    /**
     * Registration point for transition into DataConnection detached.
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForDataConnectionDetached(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mDetachedRegistrants.add(r);

        if (getCurrentDataConnectionState() != ServiceState.STATE_IN_SERVICE) {
            r.notifyRegistrant();
        }
    }
    public void unregisterForDataConnectionDetached(Handler h) {
        mDetachedRegistrants.remove(h);
    }

    /**
     * Registration for DataConnection RIL Data Radio Technology changing. The
     * new radio technology will be returned AsyncResult#result as an Integer Object.
     * The AsyncResult will be in the notification Message#obj.
     *
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForDataRegStateOrRatChanged(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mDataRegStateOrRatChangedRegistrants.add(r);
        notifyDataRegStateRilRadioTechnologyChanged();
    }
    public void unregisterForDataRegStateOrRatChanged(Handler h) {
        mDataRegStateOrRatChangedRegistrants.remove(h);
    }

    /**
     * Registration point for transition into network attached.
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj in Message.obj
     */
    public void registerForNetworkAttached(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);

        mNetworkAttachedRegistrants.add(r);
        if (mSS.getVoiceRegState() == ServiceState.STATE_IN_SERVICE) {
            r.notifyRegistrant();
        }
    }
    public void unregisterForNetworkAttached(Handler h) {
        mNetworkAttachedRegistrants.remove(h);
    }

    /**
     * Registration point for transition into packet service restricted zone.
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForPsRestrictedEnabled(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mPsRestrictEnabledRegistrants.add(r);

        if (mRestrictedState.isPsRestricted()) {
            r.notifyRegistrant();
        }
    }

    public void unregisterForPsRestrictedEnabled(Handler h) {
        mPsRestrictEnabledRegistrants.remove(h);
    }

    /**
     * Registration point for transition out of packet service restricted zone.
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForPsRestrictedDisabled(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mPsRestrictDisabledRegistrants.add(r);

        if (mRestrictedState.isPsRestricted()) {
            r.notifyRegistrant();
        }
    }

    public void unregisterForPsRestrictedDisabled(Handler h) {
        mPsRestrictDisabledRegistrants.remove(h);
    }

    /**
     * Clean up existing voice and data connection then turn off radio power.
     *
     * Hang up the existing voice calls to decrease call drop rate.
     */
    public void powerOffRadioSafely(DcTracker dcTracker) {
        synchronized (this) {
            if (!mPendingRadioPowerOffAfterDataOff) {
                if (mPhone.isPhoneTypeGsm() || mPhone.isPhoneTypeCdmaLte()) {
                    int dds = SubscriptionManager.getDefaultDataSubscriptionId();
                    // To minimize race conditions we call cleanUpAllConnections on
                    // both if else paths instead of before this isDisconnected test.
                    if (dcTracker.isDisconnected()
                            && (dds == mPhone.getSubId()
                            || (dds != mPhone.getSubId()
                            && ProxyController.getInstance().isDataDisconnected(dds)))) {
                        // To minimize race conditions we do this after isDisconnected
                        dcTracker.cleanUpAllConnections(Phone.REASON_RADIO_TURNED_OFF);
                        if (DBG) log("Data disconnected, turn off radio right away.");
                        hangupAndPowerOff();
                    } else {
                        // hang up all active voice calls first
                        if (mPhone.isPhoneTypeGsm() && mPhone.isInCall()) {
                            mPhone.mCT.mRingingCall.hangupIfAlive();
                            mPhone.mCT.mBackgroundCall.hangupIfAlive();
                            mPhone.mCT.mForegroundCall.hangupIfAlive();
                        }
                        dcTracker.cleanUpAllConnections(Phone.REASON_RADIO_TURNED_OFF);
                        if (dds != mPhone.getSubId()
                                && !ProxyController.getInstance().isDataDisconnected(dds)) {
                            if (DBG) log("Data is active on DDS.  Wait for all data disconnect");
                            // Data is not disconnected on DDS. Wait for the data disconnect complete
                            // before sending the RADIO_POWER off.
                            ProxyController.getInstance().registerForAllDataDisconnected(dds, this,
                                    EVENT_ALL_DATA_DISCONNECTED, null);
                            mPendingRadioPowerOffAfterDataOff = true;
                        }
                        Message msg = Message.obtain(this);
                        msg.what = EVENT_SET_RADIO_POWER_OFF;
                        msg.arg1 = ++mPendingRadioPowerOffAfterDataOffTag;
                        if (sendMessageDelayed(msg, 30000)) {
                            if (DBG) log("Wait upto 30s for data to disconnect, then turn off radio.");
                            mPendingRadioPowerOffAfterDataOff = true;
                        } else {
                            log("Cannot send delayed Msg, turn off radio right away.");
                            hangupAndPowerOff();
                            mPendingRadioPowerOffAfterDataOff = false;
                        }
                    }
                } else {
                    // In some network, deactivate PDP connection cause releasing of RRC connection,
                    // which MM/IMSI detaching request needs. Without this detaching, network can
                    // not release the network resources previously attached.
                    // So we are avoiding data detaching on these networks.
                    String[] networkNotClearData = mPhone.getContext().getResources()
                            .getStringArray(com.android.internal.R.array.networks_not_clear_data);
                    String currentNetwork = mSS.getOperatorNumeric();
                    if ((networkNotClearData != null) && (currentNetwork != null)) {
                        for (int i = 0; i < networkNotClearData.length; i++) {
                            if (currentNetwork.equals(networkNotClearData[i])) {
                                // Don't clear data connection for this carrier
                                if (DBG)
                                    log("Not disconnecting data for " + currentNetwork);
                                hangupAndPowerOff();
                                return;
                            }
                        }
                    }
                    // To minimize race conditions we call cleanUpAllConnections on
                    // both if else paths instead of before this isDisconnected test.
                    if (dcTracker.isDisconnected()) {
                        // To minimize race conditions we do this after isDisconnected
                        dcTracker.cleanUpAllConnections(Phone.REASON_RADIO_TURNED_OFF);
                        if (DBG) log("Data disconnected, turn off radio right away.");
                        hangupAndPowerOff();
                    } else {
                        dcTracker.cleanUpAllConnections(Phone.REASON_RADIO_TURNED_OFF);
                        Message msg = Message.obtain(this);
                        msg.what = EVENT_SET_RADIO_POWER_OFF;
                        msg.arg1 = ++mPendingRadioPowerOffAfterDataOffTag;
                        if (sendMessageDelayed(msg, 30000)) {
                            if (DBG)
                                log("Wait upto 30s for data to disconnect, then turn off radio.");
                            mPendingRadioPowerOffAfterDataOff = true;
                        } else {
                            log("Cannot send delayed Msg, turn off radio right away.");
                            hangupAndPowerOff();
                        }
                    }
                }
            }
        }
    }

    /**
     * process the pending request to turn radio off after data is disconnected
     *
     * return true if there is pending request to process; false otherwise.
     */
    public boolean processPendingRadioPowerOffAfterDataOff() {
        synchronized(this) {
            if (mPendingRadioPowerOffAfterDataOff) {
                if (DBG) log("Process pending request to turn radio off.");
                mPendingRadioPowerOffAfterDataOffTag += 1;
                hangupAndPowerOff();
                mPendingRadioPowerOffAfterDataOff = false;
                return true;
            }
            return false;
        }
    }

    /**
     * send signal-strength-changed notification if changed Called both for
     * solicited and unsolicited signal strength updates
     *
     * @return true if the signal strength changed and a notification was sent.
     */
    protected boolean onSignalStrengthResult(AsyncResult ar) {
        boolean isGsm = false;
        //override isGsm for CDMA LTE
        if (mPhone.isPhoneTypeGsm() ||
                (mPhone.isPhoneTypeCdmaLte() &&
                        ServiceState.isLte(mSS.getRilDataRadioTechnology()))) {
            isGsm = true;
        }

        // This signal is used for both voice and data radio signal so parse
        // all fields

        if ((ar.exception == null) && (ar.result != null)) {
            mSignalStrength = (SignalStrength) ar.result;
            mSignalStrength.validateInput();
            mSignalStrength.setGsm(isGsm);
        } else {
            log("onSignalStrengthResult() Exception from RIL : " + ar.exception);
            mSignalStrength = new SignalStrength(isGsm);
        }

        boolean ssChanged = notifySignalStrength();

        return ssChanged;
    }

    /**
     * Hang up all voice call and turn off radio. Implemented by derived class.
     */
    protected void hangupAndPowerOff() {
        // hang up all active voice calls
        if (!mPhone.isPhoneTypeGsm() || mPhone.isInCall()) {
            mPhone.mCT.mRingingCall.hangupIfAlive();
            mPhone.mCT.mBackgroundCall.hangupIfAlive();
            mPhone.mCT.mForegroundCall.hangupIfAlive();
        }

        mCi.setRadioPower(false, null);

    }

    /** Cancel a pending (if any) pollState() operation */
    protected void cancelPollState() {
        // This will effectively cancel the rest of the poll requests.
        mPollingContext = new int[1];
    }

    /**
     * Return true if time zone needs fixing.
     *
     * @param phone
     * @param operatorNumeric
     * @param prevOperatorNumeric
     * @param needToFixTimeZone
     * @return true if time zone needs to be fixed
     */
    protected boolean shouldFixTimeZoneNow(Phone phone, String operatorNumeric,
            String prevOperatorNumeric, boolean needToFixTimeZone) {
        // Return false if the mcc isn't valid as we don't know where we are.
        // Return true if we have an IccCard and the mcc changed or we
        // need to fix it because when the NITZ time came in we didn't
        // know the country code.

        // If mcc is invalid then we'll return false
        int mcc;
        try {
            mcc = Integer.parseInt(operatorNumeric.substring(0, 3));
        } catch (Exception e) {
            if (DBG) {
                log("shouldFixTimeZoneNow: no mcc, operatorNumeric=" + operatorNumeric +
                        " retVal=false");
            }
            return false;
        }

        // If prevMcc is invalid will make it different from mcc
        // so we'll return true if the card exists.
        int prevMcc;
        try {
            prevMcc = Integer.parseInt(prevOperatorNumeric.substring(0, 3));
        } catch (Exception e) {
            prevMcc = mcc + 1;
        }

        // Determine if the Icc card exists
        boolean iccCardExist = false;
        if (mUiccApplcation != null) {
            iccCardExist = mUiccApplcation.getState() != AppState.APPSTATE_UNKNOWN;
        }

        // Determine retVal
        boolean retVal = ((iccCardExist && (mcc != prevMcc)) || needToFixTimeZone);
        if (DBG) {
            long ctm = System.currentTimeMillis();
            log("shouldFixTimeZoneNow: retVal=" + retVal +
                    " iccCardExist=" + iccCardExist +
                    " operatorNumeric=" + operatorNumeric + " mcc=" + mcc +
                    " prevOperatorNumeric=" + prevOperatorNumeric + " prevMcc=" + prevMcc +
                    " needToFixTimeZone=" + needToFixTimeZone +
                    " ltod=" + TimeUtils.logTimeOfDay(ctm));
        }
        return retVal;
    }

    public String getSystemProperty(String property, String defValue) {
        return TelephonyManager.getTelephonyProperty(mPhone.getPhoneId(), property, defValue);
    }

    /**
     * @return all available cell information or null if none.
     */
    public List<CellInfo> getAllCellInfo() {
        CellInfoResult result = new CellInfoResult();
        if (VDBG) log("SST.getAllCellInfo(): E");
        int ver = mCi.getRilVersion();
        if (ver >= 8) {
            if (isCallerOnDifferentThread()) {
                if ((SystemClock.elapsedRealtime() - mLastCellInfoListTime)
                        > LAST_CELL_INFO_LIST_MAX_AGE_MS) {
                    Message msg = obtainMessage(EVENT_GET_CELL_INFO_LIST, result);
                    synchronized(result.lockObj) {
                        result.list = null;
                        mCi.getCellInfoList(msg);
                        try {
                            result.lockObj.wait(5000);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                } else {
                    if (DBG) log("SST.getAllCellInfo(): return last, back to back calls");
                    result.list = mLastCellInfoList;
                }
            } else {
                if (DBG) log("SST.getAllCellInfo(): return last, same thread can't block");
                result.list = mLastCellInfoList;
            }
        } else {
            if (DBG) log("SST.getAllCellInfo(): not implemented");
            result.list = null;
        }
        synchronized(result.lockObj) {
            if (result.list != null) {
                if (VDBG) log("SST.getAllCellInfo(): X size=" + result.list.size()
                        + " list=" + result.list);
                return result.list;
            } else {
                if (DBG) log("SST.getAllCellInfo(): X size=0 list=null");
                return null;
            }
        }
    }

    /**
     * @return signal strength
     */
    public SignalStrength getSignalStrength() {
        return mSignalStrength;
    }

    /**
     * Registration point for subscription info ready
     * @param h handler to notify
     * @param what what code of message when delivered
     * @param obj placed in Message.obj
     */
    public void registerForSubscriptionInfoReady(Handler h, int what, Object obj) {
        Registrant r = new Registrant(h, what, obj);
        mCdmaForSubscriptionInfoReadyRegistrants.add(r);

        if (isMinInfoReady()) {
            r.notifyRegistrant();
        }
    }

    public void unregisterForSubscriptionInfoReady(Handler h) {
        mCdmaForSubscriptionInfoReadyRegistrants.remove(h);
    }

    /**
     * Save current source of cdma subscription
     * @param source - 1 for NV, 0 for RUIM
     */
    private void saveCdmaSubscriptionSource(int source) {
        log("Storing cdma subscription source: " + source);
        Settings.Global.putInt(mPhone.getContext().getContentResolver(),
                Settings.Global.CDMA_SUBSCRIPTION_MODE,
                source);
        log("Read from settings: " + Settings.Global.getInt(mPhone.getContext().getContentResolver(),
                Settings.Global.CDMA_SUBSCRIPTION_MODE, -1));
    }

    private void getSubscriptionInfoAndStartPollingThreads() {
        mCi.getCDMASubscription(obtainMessage(EVENT_POLL_STATE_CDMA_SUBSCRIPTION));

        // Get Registration Information
        pollState();
    }

    private void handleCdmaSubscriptionSource(int newSubscriptionSource) {
        log("Subscription Source : " + newSubscriptionSource);
        mIsSubscriptionFromRuim =
                (newSubscriptionSource == CdmaSubscriptionSourceManager.SUBSCRIPTION_FROM_RUIM);
        log("isFromRuim: " + mIsSubscriptionFromRuim);
        saveCdmaSubscriptionSource(newSubscriptionSource);
        if (!mIsSubscriptionFromRuim) {
            // NV is ready when subscription source is NV
            sendMessage(obtainMessage(EVENT_NV_READY));
        }
    }

    public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
        pw.println("ServiceStateTracker:");
        pw.println(" mSubId=" + mSubId);
        pw.println(" mSS=" + mSS);
        pw.println(" mNewSS=" + mNewSS);
        pw.println(" mVoiceCapable=" + mVoiceCapable);
        pw.println(" mRestrictedState=" + mRestrictedState);
        pw.println(" mPollingContext=" + mPollingContext + " - " +
                (mPollingContext != null ? mPollingContext[0] : ""));
        pw.println(" mDesiredPowerState=" + mDesiredPowerState);
        pw.println(" mDontPollSignalStrength=" + mDontPollSignalStrength);
        pw.println(" mSignalStrength=" + mSignalStrength);
        pw.println(" mLastSignalStrength=" + mLastSignalStrength);
        pw.println(" mRestrictedState=" + mRestrictedState);
        pw.println(" mPendingRadioPowerOffAfterDataOff=" + mPendingRadioPowerOffAfterDataOff);
        pw.println(" mPendingRadioPowerOffAfterDataOffTag=" + mPendingRadioPowerOffAfterDataOffTag);
        pw.println(" mCellLoc=" + mCellLoc);
        pw.println(" mNewCellLoc=" + mNewCellLoc);
        pw.println(" mLastCellInfoListTime=" + mLastCellInfoListTime);
        pw.println(" mPreferredNetworkType=" + mPreferredNetworkType);
        pw.println(" mMaxDataCalls=" + mMaxDataCalls);
        pw.println(" mNewMaxDataCalls=" + mNewMaxDataCalls);
        pw.println(" mReasonDataDenied=" + mReasonDataDenied);
        pw.println(" mNewReasonDataDenied=" + mNewReasonDataDenied);
        pw.println(" mGsmRoaming=" + mGsmRoaming);
        pw.println(" mDataRoaming=" + mDataRoaming);
        pw.println(" mEmergencyOnly=" + mEmergencyOnly);
        pw.println(" mNeedFixZoneAfterNitz=" + mNeedFixZoneAfterNitz);
        pw.flush();
        pw.println(" mZoneOffset=" + mZoneOffset);
        pw.println(" mZoneDst=" + mZoneDst);
        pw.println(" mZoneTime=" + mZoneTime);
        pw.println(" mGotCountryCode=" + mGotCountryCode);
        pw.println(" mNitzUpdatedTime=" + mNitzUpdatedTime);
        pw.println(" mSavedTimeZone=" + mSavedTimeZone);
        pw.println(" mSavedTime=" + mSavedTime);
        pw.println(" mSavedAtTime=" + mSavedAtTime);
        pw.println(" mStartedGprsRegCheck=" + mStartedGprsRegCheck);
        pw.println(" mReportedGprsNoReg=" + mReportedGprsNoReg);
        pw.println(" mNotification=" + mNotification);
        pw.println(" mWakeLock=" + mWakeLock);
        pw.println(" mCurSpn=" + mCurSpn);
        pw.println(" mCurDataSpn=" + mCurDataSpn);
        pw.println(" mCurShowSpn=" + mCurShowSpn);
        pw.println(" mCurPlmn=" + mCurPlmn);
        pw.println(" mCurShowPlmn=" + mCurShowPlmn);
        pw.flush();
        pw.println(" mCurrentOtaspMode=" + mCurrentOtaspMode);
        pw.println(" mRoamingIndicator=" + mRoamingIndicator);
        pw.println(" mIsInPrl=" + mIsInPrl);
        pw.println(" mDefaultRoamingIndicator=" + mDefaultRoamingIndicator);
        pw.println(" mRegistrationState=" + mRegistrationState);
        pw.println(" mMdn=" + mMdn);
        pw.println(" mHomeSystemId=" + mHomeSystemId);
        pw.println(" mHomeNetworkId=" + mHomeNetworkId);
        pw.println(" mMin=" + mMin);
        pw.println(" mPrlVersion=" + mPrlVersion);
        pw.println(" mIsMinInfoReady=" + mIsMinInfoReady);
        pw.println(" mIsEriTextLoaded=" + mIsEriTextLoaded);
        pw.println(" mIsSubscriptionFromRuim=" + mIsSubscriptionFromRuim);
        pw.println(" mCdmaSSM=" + mCdmaSSM);
        pw.println(" mRegistrationDeniedReason=" + mRegistrationDeniedReason);
        pw.println(" mCurrentCarrier=" + mCurrentCarrier);
        pw.flush();
        pw.println(" mImsRegistered=" + mImsRegistered);
        pw.println(" mImsRegistrationOnOff=" + mImsRegistrationOnOff);
        pw.println(" mAlarmSwitch=" + mAlarmSwitch);
        pw.println(" mRadioDisabledByCarrier" + mRadioDisabledByCarrier);
        pw.println(" mPowerOffDelayNeed=" + mPowerOffDelayNeed);
        pw.println(" mDeviceShuttingDown=" + mDeviceShuttingDown);
        pw.println(" mSpnUpdatePending=" + mSpnUpdatePending);

        pw.println(" Roaming Log:");
        IndentingPrintWriter ipw = new IndentingPrintWriter(pw, "  ");
        ipw.increaseIndent();
        mRoamingLog.dump(fd, ipw, args);
        ipw.decreaseIndent();

        ipw.println(" Attach Log:");
        ipw.increaseIndent();
        mAttachLog.dump(fd, ipw, args);
        ipw.decreaseIndent();

        ipw.println(" Phone Change Log:");
        ipw.increaseIndent();
        mPhoneTypeLog.dump(fd, ipw, args);
        ipw.decreaseIndent();

        ipw.println(" Rat Change Log:");
        ipw.increaseIndent();
        mRatLog.dump(fd, ipw, args);
        ipw.decreaseIndent();
    }

    public boolean isImsRegistered() {
        return mImsRegistered;
    }
    /**
     * Verifies the current thread is the same as the thread originally
     * used in the initialization of this instance. Throws RuntimeException
     * if not.
     *
     * @exception RuntimeException if the current thread is not
     * the thread that originally obtained this Phone instance.
     */
    protected void checkCorrectThread() {
        if (Thread.currentThread() != getLooper().getThread()) {
            throw new RuntimeException(
                    "ServiceStateTracker must be used from within one thread");
        }
    }

    protected boolean isCallerOnDifferentThread() {
        boolean value = Thread.currentThread() != getLooper().getThread();
        if (VDBG) log("isCallerOnDifferentThread: " + value);
        return value;
    }

    protected void updateCarrierMccMncConfiguration(String newOp, String oldOp, Context context) {
        // if we have a change in operator, notify wifi (even to/from none)
        if (((newOp == null) && (TextUtils.isEmpty(oldOp) == false)) ||
                ((newOp != null) && (newOp.equals(oldOp) == false))) {
            log("update mccmnc=" + newOp + " fromServiceState=true");
            MccTable.updateMccMncConfiguration(context, newOp, true);
        }
    }

    /**
     * Check ISO country by MCC to see if phone is roaming in same registered country
     */
    protected boolean inSameCountry(String operatorNumeric) {
        if (TextUtils.isEmpty(operatorNumeric) || (operatorNumeric.length() < 5)) {
            // Not a valid network
            return false;
        }
        final String homeNumeric = getHomeOperatorNumeric();
        if (TextUtils.isEmpty(homeNumeric) || (homeNumeric.length() < 5)) {
            // Not a valid SIM MCC
            return false;
        }
        boolean inSameCountry = true;
        final String networkMCC = operatorNumeric.substring(0, 3);
        final String homeMCC = homeNumeric.substring(0, 3);
        final String networkCountry = MccTable.countryCodeForMcc(Integer.parseInt(networkMCC));
        final String homeCountry = MccTable.countryCodeForMcc(Integer.parseInt(homeMCC));
        if (networkCountry.isEmpty() || homeCountry.isEmpty()) {
            // Not a valid country
            return false;
        }
        inSameCountry = homeCountry.equals(networkCountry);
        if (inSameCountry) {
            return inSameCountry;
        }
        // special same country cases
        if ("us".equals(homeCountry) && "vi".equals(networkCountry)) {
            inSameCountry = true;
        } else if ("vi".equals(homeCountry) && "us".equals(networkCountry)) {
            inSameCountry = true;
        }
        return inSameCountry;
    }

    /**
     * Set both voice and data roaming type,
     * judging from the ISO country of SIM VS network.
     */
    protected void setRoamingType(ServiceState currentServiceState) {
        final boolean isVoiceInService =
                (currentServiceState.getVoiceRegState() == ServiceState.STATE_IN_SERVICE);
        if (isVoiceInService) {
            if (currentServiceState.getVoiceRoaming()) {
                if (mPhone.isPhoneTypeGsm()) {
                    // check roaming type by MCC
                    if (inSameCountry(currentServiceState.getVoiceOperatorNumeric())) {
                        currentServiceState.setVoiceRoamingType(
                                ServiceState.ROAMING_TYPE_DOMESTIC);
                    } else {
                        currentServiceState.setVoiceRoamingType(
                                ServiceState.ROAMING_TYPE_INTERNATIONAL);
                    }
                } else {
                    // some carrier defines international roaming by indicator
                    int[] intRoamingIndicators = mPhone.getContext().getResources().getIntArray(
                            com.android.internal.R.array.config_cdma_international_roaming_indicators);
                    if ((intRoamingIndicators != null) && (intRoamingIndicators.length > 0)) {
                        // It's domestic roaming at least now
                        currentServiceState.setVoiceRoamingType(ServiceState.ROAMING_TYPE_DOMESTIC);
                        int curRoamingIndicator = currentServiceState.getCdmaRoamingIndicator();
                        for (int i = 0; i < intRoamingIndicators.length; i++) {
                            if (curRoamingIndicator == intRoamingIndicators[i]) {
                                currentServiceState.setVoiceRoamingType(
                                        ServiceState.ROAMING_TYPE_INTERNATIONAL);
                                break;
                            }
                        }
                    } else {
                        // check roaming type by MCC
                        if (inSameCountry(currentServiceState.getVoiceOperatorNumeric())) {
                            currentServiceState.setVoiceRoamingType(
                                    ServiceState.ROAMING_TYPE_DOMESTIC);
                        } else {
                            currentServiceState.setVoiceRoamingType(
                                    ServiceState.ROAMING_TYPE_INTERNATIONAL);
                        }
                    }
                }
            } else {
                currentServiceState.setVoiceRoamingType(ServiceState.ROAMING_TYPE_NOT_ROAMING);
            }
        }
        final boolean isDataInService =
                (currentServiceState.getDataRegState() == ServiceState.STATE_IN_SERVICE);
        final int dataRegType = currentServiceState.getRilDataRadioTechnology();
        if (isDataInService) {
            if (!currentServiceState.getDataRoaming()) {
                currentServiceState.setDataRoamingType(ServiceState.ROAMING_TYPE_NOT_ROAMING);
            } else {
                if (mPhone.isPhoneTypeGsm()) {
                    if (ServiceState.isGsm(dataRegType)) {
                        if (isVoiceInService) {
                            // GSM data should have the same state as voice
                            currentServiceState.setDataRoamingType(currentServiceState
                                    .getVoiceRoamingType());
                        } else {
                            // we can not decide GSM data roaming type without voice
                            currentServiceState.setDataRoamingType(ServiceState.ROAMING_TYPE_UNKNOWN);
                        }
                    } else {
                        // we can not decide 3gpp2 roaming state here
                        currentServiceState.setDataRoamingType(ServiceState.ROAMING_TYPE_UNKNOWN);
                    }
                } else {
                    if (ServiceState.isCdma(dataRegType)) {
                        if (isVoiceInService) {
                            // CDMA data should have the same state as voice
                            currentServiceState.setDataRoamingType(currentServiceState
                                    .getVoiceRoamingType());
                        } else {
                            // we can not decide CDMA data roaming type without voice
                            // set it as same as last time
                            currentServiceState.setDataRoamingType(ServiceState.ROAMING_TYPE_UNKNOWN);
                        }
                    } else {
                        // take it as 3GPP roaming
                        if (inSameCountry(currentServiceState.getDataOperatorNumeric())) {
                            currentServiceState.setDataRoamingType(ServiceState.ROAMING_TYPE_DOMESTIC);
                        } else {
                            currentServiceState.setDataRoamingType(
                                    ServiceState.ROAMING_TYPE_INTERNATIONAL);
                        }
                    }
                }
            }
        }
    }

    private void setSignalStrengthDefaultValues() {
        mSignalStrength = new SignalStrength(true);
    }

    protected String getHomeOperatorNumeric() {
        String numeric = ((TelephonyManager) mPhone.getContext().
                getSystemService(Context.TELEPHONY_SERVICE)).
                getSimOperatorNumericForPhone(mPhone.getPhoneId());
        if (!mPhone.isPhoneTypeGsm() && TextUtils.isEmpty(numeric)) {
            numeric = SystemProperties.get(GsmCdmaPhone.PROPERTY_CDMA_HOME_OPERATOR_NUMERIC, "");
        }
        return numeric;
    }

    protected int getPhoneId() {
        return mPhone.getPhoneId();
    }

    /* Reset Service state when IWLAN is enabled as polling in airplane mode
     * causes state to go to OUT_OF_SERVICE state instead of STATE_OFF
     */
    protected void resetServiceStateInIwlanMode() {
        if (mCi.getRadioState() == CommandsInterface.RadioState.RADIO_OFF) {
            boolean resetIwlanRatVal = false;
            log("set service state as POWER_OFF");
            if (ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN
                        == mNewSS.getRilDataRadioTechnology()) {
                log("pollStateDone: mNewSS = " + mNewSS);
                log("pollStateDone: reset iwlan RAT value");
                resetIwlanRatVal = true;
            }
            // operator info should be kept in SS
            String operator = mNewSS.getOperatorAlphaLong();
            mNewSS.setStateOff();
            if (resetIwlanRatVal) {
                mNewSS.setRilDataRadioTechnology(ServiceState.RIL_RADIO_TECHNOLOGY_IWLAN);
                mNewSS.setDataRegState(ServiceState.STATE_IN_SERVICE);
                mNewSS.setOperatorAlphaLong(operator);
                log("pollStateDone: mNewSS = " + mNewSS);
            }
        }
    }

    /**
     * Check if device is non-roaming and always on home network.
     *
     * @param b carrier config bundle obtained from CarrierConfigManager
     * @return true if network is always on home network, false otherwise
     * @see CarrierConfigManager
     */
    protected final boolean alwaysOnHomeNetwork(BaseBundle b) {
        return b.getBoolean(CarrierConfigManager.KEY_FORCE_HOME_NETWORK_BOOL);
    }

    /**
     * Check if the network identifier has membership in the set of
     * network identifiers stored in the carrier config bundle.
     *
     * @param b carrier config bundle obtained from CarrierConfigManager
     * @param network The network identifier to check network existence in bundle
     * @param key The key to index into the bundle presenting a string array of
     *            networks to check membership
     * @return true if network has membership in bundle networks, false otherwise
     * @see CarrierConfigManager
     */
    private boolean isInNetwork(BaseBundle b, String network, String key) {
        String[] networks = b.getStringArray(key);

        if (networks != null && Arrays.asList(networks).contains(network)) {
            return true;
        }
        return false;
    }

    protected final boolean isRoamingInGsmNetwork(BaseBundle b, String network) {
        return isInNetwork(b, network, CarrierConfigManager.KEY_GSM_ROAMING_NETWORKS_STRING_ARRAY);
    }

    protected final boolean isNonRoamingInGsmNetwork(BaseBundle b, String network) {
        return isInNetwork(b, network, CarrierConfigManager.KEY_GSM_NONROAMING_NETWORKS_STRING_ARRAY);
    }

    protected final boolean isRoamingInCdmaNetwork(BaseBundle b, String network) {
        return isInNetwork(b, network, CarrierConfigManager.KEY_CDMA_ROAMING_NETWORKS_STRING_ARRAY);
    }

    protected final boolean isNonRoamingInCdmaNetwork(BaseBundle b, String network) {
        return isInNetwork(b, network, CarrierConfigManager.KEY_CDMA_NONROAMING_NETWORKS_STRING_ARRAY);
    }

    /** Check if the device is shutting down. */
    public boolean isDeviceShuttingDown() {
        return mDeviceShuttingDown;
    }
}