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Commit 920510fe authored by Bruno Martins's avatar Bruno Martins
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Settings: Add FastCharge preference into Battery settings 

 * Several OEMs let the user decide whether to enable or disable quick
   charging technology when using a quickcharge charger.
   Samsung, for example, exposes a sysfs node to disable it at
   will, depending on what the user sets in battery settings UI.

 * Disabling fast charge may be useful for reducing the heat produced by
   the device while charging, or for extending the lifespan of the battery.

 * This commit introduces a switch preference for disabling fastcharge
   on devices that support said feature.

Change-Id: I7dd09d357e9bd555a8efeaf9ee191e52b9f2d151
parent e4faed91

Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -56,6 +56,7 @@ android_library { 
        "android.hardware.dumpstate-V1.0-java",

        "android.hardware.dumpstate-V1.1-java",

        "org.lineageos.platform.internal",

        "vendor.lineage.fastcharge-V1.0-java",

    ],



    libs: [

res/values/cm_strings.xml

+5 −1
Original line number Diff line number Diff line 
<?xml version="1.0" encoding="utf-8"?>

<!--

     Copyright (C) 2012-2016 The CyanogenMod Project

     Copyright (C) 2017-2020 The LineageOS Project

     Copyright (C) 2017-2021 The LineageOS Project



     Licensed under the Apache License, Version 2.0 (the "License");

     you may not use this file except in compliance with the License.
@@ -154,4 +154,8 @@ 


    <!-- Title for connected TWS device group [CHAR LIMIT=none]-->

    <string name="connected_tws_device_saved_title">Saved Earbuds</string>



    <!-- FastCharge feature -->

    <string name="fast_charging_title">Fast charging</string>

    <string name="fast_charging_summary">Disable to reduce the heat produced by the device while charging or to extend the lifespan of the battery</string>

</resources>

res/xml/power_usage_summary.xml

+5 −0
Original line number Diff line number Diff line
@@ -63,6 +63,11 @@ 
        android:summary="@string/battery_percentage_description"

        settings:controller="com.android.settings.display.BatteryPercentagePreferenceController" />



    <SwitchPreference

        android:key="fast_charging"

        android:title="@string/fast_charging_title"

        android:summary="@string/fast_charging_summary"

        settings:controller="com.android.settings.fuelgauge.FastChargingPreferenceController"/>



    <com.android.settings.fuelgauge.PowerGaugePreference

        android:key="last_full_charge"

src/com/android/settings/fuelgauge/FastChargingPreferenceController.java

0 → 100644
+84 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2021 The LineageOS 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.settings.fuelgauge;



import android.content.Context;

import android.os.RemoteException;

import android.util.Log;



import androidx.preference.Preference;

import androidx.preference.SwitchPreference;



import com.android.settings.core.BasePreferenceController;



import vendor.lineage.fastcharge.V1_0.IFastCharge;



import java.util.NoSuchElementException;



/**

 * Controller to change and update the fast charging toggle

 */

public class FastChargingPreferenceController extends BasePreferenceController

        implements Preference.OnPreferenceChangeListener {



    private static final String KEY_FAST_CHARGING = "fast_charging";

    private static final String TAG = "FastChargingPreferenceController";



    private IFastCharge mFastCharge = null;



    public FastChargingPreferenceController(Context context) {

        super(context, KEY_FAST_CHARGING);

        try {

            mFastCharge = IFastCharge.getService();

        } catch (NoSuchElementException | RemoteException e) {

            Log.e(TAG, "Failed to get IFastCharge interface", e);

        }

    }



    @Override

    public int getAvailabilityStatus() {

        return mFastCharge != null ? AVAILABLE : UNSUPPORTED_ON_DEVICE;

    }



    @Override

    public void updateState(Preference preference) {

        super.updateState(preference);

        boolean fastChargingEnabled = false;



        try {

            fastChargingEnabled = mFastCharge.isEnabled();

        } catch (RemoteException e) {

            Log.e(TAG, "isEnabled failed", e);

        }



        ((SwitchPreference) preference).setChecked(fastChargingEnabled);

    }



    @Override

    public boolean onPreferenceChange(Preference preference, Object newValue) {

        final boolean shouldEnableFastCharging = (Boolean) newValue;



        try {

            mFastCharge.setEnabled(shouldEnableFastCharging);

            updateState(preference);

        } catch (RemoteException e) {

            Log.e(TAG, "setEnabled failed", e);

        }



        return false;

    }

}