1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.internal.os; 17 18 import android.hardware.Sensor; 19 import android.hardware.SensorManager; 20 import android.os.BatteryStats; 21 import android.util.SparseArray; 22 23 import java.util.List; 24 25 public class SensorPowerCalculator extends PowerCalculator { 26 private final List<Sensor> mSensors; 27 private final double mGpsPowerOn; 28 SensorPowerCalculator(PowerProfile profile, SensorManager sensorManager)29 public SensorPowerCalculator(PowerProfile profile, SensorManager sensorManager) { 30 mSensors = sensorManager.getSensorList(Sensor.TYPE_ALL); 31 mGpsPowerOn = profile.getAveragePower(PowerProfile.POWER_GPS_ON); 32 } 33 34 @Override calculateApp(BatterySipper app, BatteryStats.Uid u, long rawRealtimeUs, long rawUptimeUs, int statsType)35 public void calculateApp(BatterySipper app, BatteryStats.Uid u, long rawRealtimeUs, 36 long rawUptimeUs, int statsType) { 37 // Process Sensor usage 38 final SparseArray<? extends BatteryStats.Uid.Sensor> sensorStats = u.getSensorStats(); 39 final int NSE = sensorStats.size(); 40 for (int ise = 0; ise < NSE; ise++) { 41 final BatteryStats.Uid.Sensor sensor = sensorStats.valueAt(ise); 42 final int sensorHandle = sensorStats.keyAt(ise); 43 final BatteryStats.Timer timer = sensor.getSensorTime(); 44 final long sensorTime = timer.getTotalTimeLocked(rawRealtimeUs, statsType) / 1000; 45 switch (sensorHandle) { 46 case BatteryStats.Uid.Sensor.GPS: 47 app.gpsTimeMs = sensorTime; 48 app.gpsPowerMah = (app.gpsTimeMs * mGpsPowerOn) / (1000*60*60); 49 break; 50 default: 51 final int sensorsCount = mSensors.size(); 52 for (int i = 0; i < sensorsCount; i++) { 53 final Sensor s = mSensors.get(i); 54 if (s.getHandle() == sensorHandle) { 55 app.sensorPowerMah += (sensorTime * s.getPower()) / (1000*60*60); 56 break; 57 } 58 } 59 break; 60 } 61 } 62 } 63 } 64