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.os.BatteryStats; 19 import android.util.ArrayMap; 20 import android.util.Log; 21 22 public class WakelockPowerCalculator extends PowerCalculator { 23 private static final String TAG = "WakelockPowerCalculator"; 24 private static final boolean DEBUG = BatteryStatsHelper.DEBUG; 25 private final double mPowerWakelock; 26 private long mTotalAppWakelockTimeMs = 0; 27 WakelockPowerCalculator(PowerProfile profile)28 public WakelockPowerCalculator(PowerProfile profile) { 29 mPowerWakelock = profile.getAveragePower(PowerProfile.POWER_CPU_IDLE); 30 } 31 32 @Override calculateApp(BatterySipper app, BatteryStats.Uid u, long rawRealtimeUs, long rawUptimeUs, int statsType)33 public void calculateApp(BatterySipper app, BatteryStats.Uid u, long rawRealtimeUs, 34 long rawUptimeUs, int statsType) { 35 long wakeLockTimeUs = 0; 36 final ArrayMap<String, ? extends BatteryStats.Uid.Wakelock> wakelockStats = 37 u.getWakelockStats(); 38 final int wakelockStatsCount = wakelockStats.size(); 39 for (int i = 0; i < wakelockStatsCount; i++) { 40 final BatteryStats.Uid.Wakelock wakelock = wakelockStats.valueAt(i); 41 42 // Only care about partial wake locks since full wake locks 43 // are canceled when the user turns the screen off. 44 BatteryStats.Timer timer = wakelock.getWakeTime(BatteryStats.WAKE_TYPE_PARTIAL); 45 if (timer != null) { 46 wakeLockTimeUs += timer.getTotalTimeLocked(rawRealtimeUs, statsType); 47 } 48 } 49 app.wakeLockTimeMs = wakeLockTimeUs / 1000; // convert to millis 50 mTotalAppWakelockTimeMs += app.wakeLockTimeMs; 51 52 // Add cost of holding a wake lock. 53 app.wakeLockPowerMah = (app.wakeLockTimeMs * mPowerWakelock) / (1000*60*60); 54 if (DEBUG && app.wakeLockPowerMah != 0) { 55 Log.d(TAG, "UID " + u.getUid() + ": wake " + app.wakeLockTimeMs 56 + " power=" + BatteryStatsHelper.makemAh(app.wakeLockPowerMah)); 57 } 58 } 59 60 @Override calculateRemaining(BatterySipper app, BatteryStats stats, long rawRealtimeUs, long rawUptimeUs, int statsType)61 public void calculateRemaining(BatterySipper app, BatteryStats stats, long rawRealtimeUs, 62 long rawUptimeUs, int statsType) { 63 long wakeTimeMillis = stats.getBatteryUptime(rawUptimeUs) / 1000; 64 wakeTimeMillis -= mTotalAppWakelockTimeMs 65 + (stats.getScreenOnTime(rawRealtimeUs, statsType) / 1000); 66 if (wakeTimeMillis > 0) { 67 final double power = (wakeTimeMillis * mPowerWakelock) / (1000*60*60); 68 if (DEBUG) { 69 Log.d(TAG, "OS wakeLockTime " + wakeTimeMillis + " power " 70 + BatteryStatsHelper.makemAh(power)); 71 } 72 app.wakeLockTimeMs += wakeTimeMillis; 73 app.wakeLockPowerMah += power; 74 } 75 } 76 77 @Override reset()78 public void reset() { 79 mTotalAppWakelockTimeMs = 0; 80 } 81 } 82