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Commit 70c62bf1 authored by Sebastian Pickl's avatar Sebastian Pickl Committed by Jack Yu
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[RESTRICT AUTOMERGE] Revert "Removed IWLAN legacy mode support" 

Revert submission 2370228-legacy_iwlan_removal

Reason for revert: try finding the culprit for b/275330844

Reverted changes: /q/submissionid:2370228-legacy_iwlan_removal

Change-Id: Ib20a8567fd468e7d80587d328285d512ddc93f05
parent e86b1c31

src/java/com/android/internal/telephony/ServiceStateTracker.java

+53 −12
Original line number Diff line number Diff line
@@ -669,7 +669,7 @@ public class ServiceStateTracker extends Handler { 


        mAccessNetworksManager = mPhone.getAccessNetworksManager();

        mOutOfServiceSS = new ServiceState();

        mOutOfServiceSS.setOutOfService(false);

        mOutOfServiceSS.setOutOfService(mAccessNetworksManager.isInLegacyMode(), false);



        for (int transportType : mAccessNetworksManager.getAvailableTransports()) {

            mRegStateManagers.append(transportType, new NetworkRegistrationManager(
@@ -771,9 +771,9 @@ public class ServiceStateTracker extends Handler { 
        }



        mSS = new ServiceState();

        mSS.setOutOfService(false);

        mSS.setOutOfService(mAccessNetworksManager.isInLegacyMode(), false);

        mNewSS = new ServiceState();

        mNewSS.setOutOfService(false);

        mNewSS.setOutOfService(mAccessNetworksManager.isInLegacyMode(), false);

        mLastCellInfoReqTime = 0;

        mLastCellInfoList = null;

        mStartedGprsRegCheck = false;
@@ -3341,7 +3341,7 @@ public class ServiceStateTracker extends Handler { 
                nri = mNewSS.getNetworkRegistrationInfo(

                        NetworkRegistrationInfo.DOMAIN_PS,

                        AccessNetworkConstants.TRANSPORT_TYPE_WLAN);

                mNewSS.setOutOfService(false);

                mNewSS.setOutOfService(mAccessNetworksManager.isInLegacyMode(), false);

                // Add the IWLAN registration info back to service state.

                if (nri != null) {

                    mNewSS.addNetworkRegistrationInfo(nri);
@@ -3358,7 +3358,7 @@ public class ServiceStateTracker extends Handler { 
                nri = mNewSS.getNetworkRegistrationInfo(

                        NetworkRegistrationInfo.DOMAIN_PS,

                        AccessNetworkConstants.TRANSPORT_TYPE_WLAN);

                mNewSS.setOutOfService(true);

                mNewSS.setOutOfService(mAccessNetworksManager.isInLegacyMode(), true);

                // Add the IWLAN registration info back to service state.

                if (nri != null) {

                    mNewSS.addNetworkRegistrationInfo(nri);
@@ -3485,10 +3485,14 @@ public class ServiceStateTracker extends Handler { 
                mSS.getState() == ServiceState.STATE_POWER_OFF

                        && mNewSS.getState() != ServiceState.STATE_POWER_OFF;



        SparseBooleanArray hasDataAttached = new SparseBooleanArray();

        SparseBooleanArray hasDataDetached = new SparseBooleanArray();

        SparseBooleanArray hasRilDataRadioTechnologyChanged = new SparseBooleanArray();

        SparseBooleanArray hasDataRegStateChanged = new SparseBooleanArray();

        SparseBooleanArray hasDataAttached = new SparseBooleanArray(

                mAccessNetworksManager.getAvailableTransports().length);

        SparseBooleanArray hasDataDetached = new SparseBooleanArray(

                mAccessNetworksManager.getAvailableTransports().length);

        SparseBooleanArray hasRilDataRadioTechnologyChanged = new SparseBooleanArray(

                mAccessNetworksManager.getAvailableTransports().length);

        SparseBooleanArray hasDataRegStateChanged = new SparseBooleanArray(

                mAccessNetworksManager.getAvailableTransports().length);

        boolean anyDataRegChanged = false;

        boolean anyDataRatChanged = false;

        boolean hasAlphaRawChanged =
@@ -3678,7 +3682,7 @@ public class ServiceStateTracker extends Handler { 
        ServiceState oldMergedSS = new ServiceState(mPhone.getServiceState());

        mSS = new ServiceState(mNewSS);



        mNewSS.setOutOfService(false);

        mNewSS.setOutOfService(mAccessNetworksManager.isInLegacyMode(), false);



        mCellIdentity = primaryCellIdentity;

        if (mSS.getState() == ServiceState.STATE_IN_SERVICE && primaryCellIdentity != null) {
@@ -5565,7 +5569,8 @@ public class ServiceStateTracker extends Handler { 




    /**

     * This method makes some adjustments when the device camps on IWLAN in airplane mode.

     * This method adds IWLAN registration info for legacy mode devices camped on IWLAN. It also

     * makes some adjustments when the device camps on IWLAN in airplane mode.

     */

    private void processIwlanRegistrationInfo() {

        if (mCi.getRadioState() == TelephonyManager.RADIO_POWER_OFF) {
@@ -5579,7 +5584,7 @@ public class ServiceStateTracker extends Handler { 
            }

            // operator info should be kept in SS

            String operator = mNewSS.getOperatorAlphaLong();

            mNewSS.setOutOfService(true);

            mNewSS.setOutOfService(mAccessNetworksManager.isInLegacyMode(), true);

            if (resetIwlanRatVal) {

                mNewSS.setDataRegState(ServiceState.STATE_IN_SERVICE);

                NetworkRegistrationInfo nri = new NetworkRegistrationInfo.Builder()
@@ -5589,6 +5594,17 @@ public class ServiceStateTracker extends Handler { 
                        .setRegistrationState(NetworkRegistrationInfo.REGISTRATION_STATE_HOME)

                        .build();

                mNewSS.addNetworkRegistrationInfo(nri);

                if (mAccessNetworksManager.isInLegacyMode()) {

                    // If in legacy mode, simulate the behavior that IWLAN registration info

                    // is reported through WWAN transport.

                    nri = new NetworkRegistrationInfo.Builder()

                            .setTransportType(AccessNetworkConstants.TRANSPORT_TYPE_WWAN)

                            .setDomain(NetworkRegistrationInfo.DOMAIN_PS)

                            .setAccessNetworkTechnology(TelephonyManager.NETWORK_TYPE_IWLAN)

                            .setRegistrationState(NetworkRegistrationInfo.REGISTRATION_STATE_HOME)

                            .build();

                    mNewSS.addNetworkRegistrationInfo(nri);

                }

                mNewSS.setOperatorAlphaLong(operator);

                // Since it's in airplane mode, cellular must be out of service. The only possible

                // transport for data to go through is the IWLAN transport. Setting this to true
@@ -5598,6 +5614,31 @@ public class ServiceStateTracker extends Handler { 
            }

            return;

        }



        // If the device operates in legacy mode and camps on IWLAN, modem reports IWLAN as a RAT

        // through WWAN registration info. To be consistent with the behavior with AP-assisted mode,

        // we manually make a WLAN registration info for clients to consume. In this scenario,

        // both WWAN and WLAN registration info are the IWLAN registration info and that's the

        // unfortunate limitation we have when the device operates in legacy mode. In AP-assisted

        // mode, the WWAN registration will correctly report the actual cellular registration info

        // when the device camps on IWLAN.

        if (mAccessNetworksManager.isInLegacyMode()) {

            NetworkRegistrationInfo wwanNri = mNewSS.getNetworkRegistrationInfo(

                    NetworkRegistrationInfo.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);

            if (wwanNri != null && wwanNri.getAccessNetworkTechnology()

                    == TelephonyManager.NETWORK_TYPE_IWLAN) {

                NetworkRegistrationInfo wlanNri = new NetworkRegistrationInfo.Builder()

                        .setTransportType(AccessNetworkConstants.TRANSPORT_TYPE_WLAN)

                        .setDomain(NetworkRegistrationInfo.DOMAIN_PS)

                        .setRegistrationState(wwanNri.getNetworkRegistrationState())

                        .setAccessNetworkTechnology(TelephonyManager.NETWORK_TYPE_IWLAN)

                        .setRejectCause(wwanNri.getRejectCause())

                        .setEmergencyOnly(wwanNri.isEmergencyEnabled())

                        .setAvailableServices(wwanNri.getAvailableServices())

                        .build();

                mNewSS.addNetworkRegistrationInfo(wlanNri);

            }

        }

    }



    /**

src/java/com/android/internal/telephony/data/AccessNetworksManager.java

+88 −15
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ package com.android.internal.telephony.data; 
import android.annotation.CallbackExecutor;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.annotation.StringDef;

import android.content.BroadcastReceiver;

import android.content.ComponentName;

import android.content.Context;
@@ -33,6 +34,7 @@ import android.os.PersistableBundle; 
import android.os.Registrant;

import android.os.RegistrantList;

import android.os.RemoteException;

import android.os.SystemProperties;

import android.os.UserHandle;

import android.telephony.AccessNetworkConstants;

import android.telephony.AccessNetworkConstants.AccessNetworkType;
@@ -54,11 +56,14 @@ import android.util.LocalLog; 
import android.util.SparseArray;



import com.android.internal.telephony.Phone;

import com.android.internal.telephony.RIL;

import com.android.internal.telephony.SlidingWindowEventCounter;

import com.android.telephony.Rlog;



import java.io.FileDescriptor;

import java.io.PrintWriter;

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;
@@ -76,6 +81,35 @@ import java.util.stream.Collectors; 
 */

public class AccessNetworksManager extends Handler {

    private static final boolean DBG = false;

    public static final String SYSTEM_PROPERTIES_IWLAN_OPERATION_MODE =

            "ro.telephony.iwlan_operation_mode";



    @Retention(RetentionPolicy.SOURCE)

    @StringDef(prefix = {"IWLAN_OPERATION_MODE_"},

            value = {

                    IWLAN_OPERATION_MODE_DEFAULT,

                    IWLAN_OPERATION_MODE_LEGACY,

                    IWLAN_OPERATION_MODE_AP_ASSISTED})

    public @interface IwlanOperationMode {}



    /**

     * IWLAN default mode. On device that has IRadio 1.4 or above, it means

     * {@link #IWLAN_OPERATION_MODE_AP_ASSISTED}. On device that has IRadio 1.3 or below, it means

     * {@link #IWLAN_OPERATION_MODE_LEGACY}.

     */

    public static final String IWLAN_OPERATION_MODE_DEFAULT = "default";



    /**

     * IWLAN legacy mode. IWLAN is completely handled by the modem, and when the device is on

     * IWLAN, modem reports IWLAN as a RAT.

     */

    public static final String IWLAN_OPERATION_MODE_LEGACY = "legacy";



    /**

     * IWLAN application processor assisted mode. IWLAN is handled by the bound IWLAN data service

     * and network service separately.

     */

    public static final String IWLAN_OPERATION_MODE_AP_ASSISTED = "AP-assisted";



    /**

     * The counters to detect frequent QNS attempt to change preferred network transport by ApnType.
@@ -332,6 +366,14 @@ public class AccessNetworksManager extends Handler { 
                Context.CARRIER_CONFIG_SERVICE);

        mLogTag = "ANM-" + mPhone.getPhoneId();

        mApnTypeToQnsChangeNetworkCounter = new SparseArray<>();



        if (isInLegacyMode()) {

            log("operates in legacy mode.");

            // For legacy mode, WWAN is the only transport to handle all data connections, even

            // the IWLAN ones.

            mAvailableTransports = new int[]{AccessNetworkConstants.TRANSPORT_TYPE_WWAN};

        } else {

            log("operates in AP-assisted mode.");

            mAvailableTransports = new int[]{AccessNetworkConstants.TRANSPORT_TYPE_WWAN,

                    AccessNetworkConstants.TRANSPORT_TYPE_WLAN};

            IntentFilter intentFilter = new IntentFilter();
@@ -345,6 +387,7 @@ public class AccessNetworksManager extends Handler { 
                loge("Package name not found: ", e);

            }

            bindQualifiedNetworksService();

        }



        // Using post to delay the registering because data retry manager and data config

        // manager instances are created later than access networks manager.
@@ -447,7 +490,8 @@ public class AccessNetworksManager extends Handler { 
    /**

     * Get the qualified network service package.

     *

     * @return package name of the qualified networks service package.

     * @return package name of the qualified networks service package. Return empty string when in

     * legacy mode (i.e. Dedicated IWLAN data/network service is not supported).

     */

    private String getQualifiedNetworksServicePackageName() {

        // Read package name from the resource
@@ -524,9 +568,30 @@ public class AccessNetworksManager extends Handler { 
    }



    /**

     * @return The available transports.

     * @return {@code true} if the device operates in legacy mode, otherwise {@code false}.

     */

    public @NonNull int[] getAvailableTransports() {

    public boolean isInLegacyMode() {

        // Get IWLAN operation mode from the system property. If the system property is configured

        // to default or not configured, the mode is tied to IRadio version. For 1.4 or above, it's

        // AP-assisted mode, for 1.3 or below, it's legacy mode.

        String mode = SystemProperties.get(SYSTEM_PROPERTIES_IWLAN_OPERATION_MODE);



        if (mode.equals(IWLAN_OPERATION_MODE_AP_ASSISTED)) {

            return false;

        } else if (mode.equals(IWLAN_OPERATION_MODE_LEGACY)) {

            return true;

        }



        return mPhone.getHalVersion().less(RIL.RADIO_HAL_VERSION_1_4);

    }



    /**

     * @return The available transports. Note that on legacy devices, the only available transport

     * would be WWAN only. If the device is configured as AP-assisted mode, the available transport

     * will always be WWAN and WLAN (even if the device is not camped on IWLAN).

     * See {@link #isInLegacyMode()} for mode details.

     */

    public synchronized @NonNull int[] getAvailableTransports() {

        return mAvailableTransports;

    }
@@ -561,6 +626,11 @@ public class AccessNetworksManager extends Handler { 
     * @return The preferred transport.

     */

    public @TransportType int getPreferredTransport(@ApnType int apnType) {

        // In legacy mode, always preferred on cellular.

        if (isInLegacyMode()) {

            return AccessNetworkConstants.TRANSPORT_TYPE_WWAN;

        }



        return mPreferredTransports.get(apnType) == null

                ? AccessNetworkConstants.TRANSPORT_TYPE_WWAN : mPreferredTransports.get(apnType);

    }
@@ -663,6 +733,9 @@ public class AccessNetworksManager extends Handler { 
        }



        pw.decreaseIndent();

        pw.println("isInLegacy=" + isInLegacyMode());

        pw.println("IWLAN operation mode="

                + SystemProperties.get(SYSTEM_PROPERTIES_IWLAN_OPERATION_MODE));

        pw.println("Local logs=");

        pw.increaseIndent();

        mLocalLog.dump(fd, pw, args);

src/java/com/android/internal/telephony/data/DataNetwork.java

+2 −3
Original line number Diff line number Diff line
@@ -912,9 +912,8 @@ public class DataNetwork extends StateMachine { 
        mDataAllowedReason = dataAllowedReason;

        dataProfile.setLastSetupTimestamp(SystemClock.elapsedRealtime());

        mAttachedNetworkRequestList.addAll(networkRequestList);

        for (int transportType : mAccessNetworksManager.getAvailableTransports()) {

            mCid.put(transportType, INVALID_CID);

        }

        mCid.put(AccessNetworkConstants.TRANSPORT_TYPE_WWAN, INVALID_CID);

        mCid.put(AccessNetworkConstants.TRANSPORT_TYPE_WLAN, INVALID_CID);

        mTelephonyDisplayInfo = mPhone.getDisplayInfoController().getTelephonyDisplayInfo();

        mTcpBufferSizes = mDataConfigManager.getTcpConfigString(mTelephonyDisplayInfo);

src/java/com/android/internal/telephony/data/DataNetworkController.java

+12 −8
Original line number Diff line number Diff line
@@ -779,11 +779,13 @@ public class DataNetworkController extends Handler { 
        log("DataNetworkController created.");



        mAccessNetworksManager = phone.getAccessNetworksManager();

        for (int transport : mAccessNetworksManager.getAvailableTransports()) {

            mDataServiceManagers.put(transport, new DataServiceManager(mPhone, looper,

                    AccessNetworkConstants.TRANSPORT_TYPE_WWAN));

        mDataServiceManagers.put(AccessNetworkConstants.TRANSPORT_TYPE_WWAN,

                new DataServiceManager(mPhone, looper, AccessNetworkConstants.TRANSPORT_TYPE_WWAN));

        if (!mAccessNetworksManager.isInLegacyMode()) {

            mDataServiceManagers.put(AccessNetworkConstants.TRANSPORT_TYPE_WLAN,

                    new DataServiceManager(mPhone, looper,

                            AccessNetworkConstants.TRANSPORT_TYPE_WLAN));

        }



        mDataConfigManager = new DataConfigManager(mPhone, looper);



        // ========== Anomaly counters ==========
@@ -986,10 +988,12 @@ public class DataNetworkController extends Handler { 
        mDataServiceManagers.get(AccessNetworkConstants.TRANSPORT_TYPE_WWAN)

                .registerForServiceBindingChanged(this, EVENT_DATA_SERVICE_BINDING_CHANGED);



        if (!mAccessNetworksManager.isInLegacyMode()) {

            mPhone.getServiceStateTracker().registerForServiceStateChanged(this,

                    EVENT_SERVICE_STATE_CHANGED, null);

            mDataServiceManagers.get(AccessNetworkConstants.TRANSPORT_TYPE_WLAN)

                    .registerForServiceBindingChanged(this, EVENT_DATA_SERVICE_BINDING_CHANGED);

        }



        mPhone.getContext().getSystemService(TelephonyRegistryManager.class)

                .addOnSubscriptionsChangedListener(new OnSubscriptionsChangedListener() {

src/java/com/android/internal/telephony/data/DataRetryManager.java

+4 −3
Original line number Diff line number Diff line
@@ -958,9 +958,10 @@ public class DataRetryManager extends Handler { 
                DataRetryManager.this.onCarrierConfigUpdated();

            }

        });



        for (int transport : mPhone.getAccessNetworksManager().getAvailableTransports()) {

            mDataServiceManagers.get(transport)

        mDataServiceManagers.get(AccessNetworkConstants.TRANSPORT_TYPE_WWAN)

                .registerForApnUnthrottled(this, EVENT_DATA_PROFILE_UNTHROTTLED);

        if (!mPhone.getAccessNetworksManager().isInLegacyMode()) {

            mDataServiceManagers.get(AccessNetworkConstants.TRANSPORT_TYPE_WLAN)

                    .registerForApnUnthrottled(this, EVENT_DATA_PROFILE_UNTHROTTLED);

        }

        mDataProfileManager.registerCallback(new DataProfileManagerCallback(this::post) {