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Commit 3e340ca1 authored by Diogo Ferreira's avatar Diogo Ferreira Committed by Ricardo Cerqueira
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PhoneBase: Add auto-rat switching on capability changes 

Certain modems have a configuration where the primary data subscription
can do 3/4G while secondary ones will only do 2G.

This patchset updates preferred types for each Phone when its
capabilities change. So if a modem has a limitation as described
above and correctly reports it, the telephony stack will automatically
upgrade/downgrade the RAT accordingly.

Change-Id: I1ca4f6ef94e03666d575588b2c30c78182b37598
parent 1bcee712

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

+12 −0
Original line number Original line Diff line number Diff line
@@ -2637,10 +2637,22 @@ public abstract class PhoneBase extends Handler implements Phone { 
        mRadioCapability.set(rc);

        mRadioCapability.set(rc);





        if (SubscriptionManager.isValidSubscriptionId(getSubId())) {

        if (SubscriptionManager.isValidSubscriptionId(getSubId())) {

            updatePreferredType();

            sendSubscriptionSettings(true);

            sendSubscriptionSettings(true);

        }

        }

    }

    }





    private void updatePreferredType() {

        int preferredRaf = getRadioAccessFamily();

        int userNwType = SubscriptionController.getInstance().getUserNwMode(getPhoneId());

        if (userNwType != SubscriptionManager.DEFAULT_NW_MODE) {

            preferredRaf &= RadioAccessFamily.getRafFromNetworkType(userNwType);

        }

        int filteredType = RadioAccessFamily.getNetworkTypeFromRaf(preferredRaf);

        TelephonyManager.putIntAtIndex(mContext.getContentResolver(),

                Settings.Global.PREFERRED_NETWORK_MODE, getPhoneId(), filteredType);

    }



    public void sendSubscriptionSettings(boolean restoreNetworkSelection) {

    public void sendSubscriptionSettings(boolean restoreNetworkSelection) {

        // Send settings down

        // Send settings down

        int type = PhoneFactory.calculatePreferredNetworkType(mContext, getSubId());

        int type = PhoneFactory.calculatePreferredNetworkType(mContext, getSubId());