| /* |
| * Copyright (C) 2020 The Android Open Source 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.server.power.stats; |
| |
| import static com.android.internal.os.PowerProfile.POWER_GROUP_DISPLAY_AMBIENT; |
| |
| import android.os.BatteryConsumer; |
| import android.os.BatteryStats; |
| import android.os.BatteryUsageStats; |
| import android.os.BatteryUsageStatsQuery; |
| |
| import com.android.internal.os.PowerProfile; |
| |
| /** |
| * Estimates power consumed by the ambient display |
| */ |
| public class AmbientDisplayPowerCalculator extends PowerCalculator { |
| private final UsageBasedPowerEstimator[] mPowerEstimators; |
| |
| @Override |
| public boolean isPowerComponentSupported(@BatteryConsumer.PowerComponent int powerComponent) { |
| return powerComponent == BatteryConsumer.POWER_COMPONENT_AMBIENT_DISPLAY; |
| } |
| |
| public AmbientDisplayPowerCalculator(PowerProfile powerProfile) { |
| final int numDisplays = powerProfile.getNumDisplays(); |
| mPowerEstimators = new UsageBasedPowerEstimator[numDisplays]; |
| for (int display = 0; display < numDisplays; display++) { |
| mPowerEstimators[display] = new UsageBasedPowerEstimator( |
| powerProfile.getAveragePowerForOrdinal(POWER_GROUP_DISPLAY_AMBIENT, display)); |
| } |
| } |
| |
| /** |
| * Ambient display power is the additional power the screen takes while in ambient display/ |
| * screen doze/always-on display (interchangeable terms) mode. |
| */ |
| @Override |
| public void calculate(BatteryUsageStats.Builder builder, BatteryStats batteryStats, |
| long rawRealtimeUs, long rawUptimeUs, BatteryUsageStatsQuery query) { |
| final long energyConsumerUC = batteryStats.getScreenDozeEnergyConsumptionUC(); |
| final int powerModel = getPowerModel(energyConsumerUC, query); |
| final long durationMs = calculateDuration(batteryStats, rawRealtimeUs, |
| BatteryStats.STATS_SINCE_CHARGED); |
| final double powerMah = calculateTotalPower(powerModel, batteryStats, rawRealtimeUs, |
| energyConsumerUC); |
| builder.getAggregateBatteryConsumerBuilder( |
| BatteryUsageStats.AGGREGATE_BATTERY_CONSUMER_SCOPE_DEVICE) |
| .setUsageDurationMillis(BatteryConsumer.POWER_COMPONENT_AMBIENT_DISPLAY, durationMs) |
| .setConsumedPower(BatteryConsumer.POWER_COMPONENT_AMBIENT_DISPLAY, |
| powerMah, powerModel); |
| } |
| |
| private long calculateDuration(BatteryStats batteryStats, long rawRealtimeUs, int statsType) { |
| return batteryStats.getScreenDozeTime(rawRealtimeUs, statsType) / 1000; |
| } |
| |
| private double calculateTotalPower(@BatteryConsumer.PowerModel int powerModel, |
| BatteryStats batteryStats, long rawRealtimeUs, long consumptionUC) { |
| switch (powerModel) { |
| case BatteryConsumer.POWER_MODEL_ENERGY_CONSUMPTION: |
| return uCtoMah(consumptionUC); |
| case BatteryConsumer.POWER_MODEL_POWER_PROFILE: |
| default: |
| return calculateEstimatedPower(batteryStats, rawRealtimeUs); |
| } |
| } |
| |
| private double calculateEstimatedPower(BatteryStats batteryStats, long rawRealtimeUs) { |
| final int numDisplays = mPowerEstimators.length; |
| double power = 0; |
| for (int display = 0; display < numDisplays; display++) { |
| final long dozeTime = batteryStats.getDisplayScreenDozeTime(display, rawRealtimeUs) |
| / 1000; |
| power += mPowerEstimators[display].calculatePower(dozeTime); |
| } |
| return power; |
| } |
| } |