Initial commit of PowerStatsService (81601212) · Commits · e / os / android_frameworks_base

core/java/android/content/Context.java

+11 −0

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		@@ -3384,6 +3384,7 @@ public abstract class Context {
		/** @hide */
		@StringDef(suffix = { "_SERVICE" }, value = {
		POWER_SERVICE,
		//@hide: POWER_STATS_SERVICE,
		WINDOW_SERVICE,
		LAYOUT_INFLATER_SERVICE,
		ACCOUNT_SERVICE,
		@@ -3724,6 +3725,16 @@ public abstract class Context {
		*/
		public static final String POWER_SERVICE = "power";

		/**
		* Use with {@link #getSystemService(String)} to retrieve a
		* {@link android.os.PowerStatsService} for accessing power stats
		* service.
		*
		* @see #getSystemService(String)
		* @hide
		*/
		public static final String POWER_STATS_SERVICE = "power_stats";

		/**
		* Use with {@link #getSystemService(String)} to retrieve a
		* {@link android.os.RecoverySystem} for accessing the recovery system

core/proto/android/os/incident.proto

+6 −0

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		@@ -40,6 +40,7 @@ import "frameworks/base/core/proto/android/server/fingerprint.proto";
		import "frameworks/base/core/proto/android/server/jobscheduler.proto";
		import "frameworks/base/core/proto/android/server/location/context_hub.proto";
		import "frameworks/base/core/proto/android/server/powermanagerservice.proto";
		import "frameworks/base/core/proto/android/server/powerstatsservice.proto";
		import "frameworks/base/core/proto/android/server/rolemanagerservice.proto";
		import "frameworks/base/core/proto/android/server/windowmanagerservice.proto";
		import "frameworks/base/core/proto/android/service/appwidget.proto";
		@@ -510,6 +511,11 @@ message IncidentProto {
		(section).args = "sensorservice --proto"
		];

		optional com.android.server.powerstats.PowerStatsServiceProto powerstats = 3054 [
		(section).type = SECTION_DUMPSYS,
		(section).args = "power_stats --proto"
		];

		// Dumps in text format (on userdebug and eng builds only): 4000 ~ 4999
		optional android.util.TextDumpProto textdump_wifi = 4000 [
		(section).type = SECTION_TEXT_DUMPSYS,

core/proto/android/server/powerstatsservice.proto

0 → 100644

+67 −0

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		/*
		* 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.
		*/

		syntax = "proto2";

		package com.android.server.powerstats;

		option java_multiple_files = true;

		message IncidentReportProto {
		/** Section number matches that in incident.proto */
		optional PowerStatsServiceProto incident_report = 3054;
		}

		message PowerStatsServiceProto {
		repeated RailInfoProto rail_info = 1;
		repeated EnergyDataProto energy_data = 2;
		}

		/**
		* Rail information:
		* Reports information related to the rails being monitored.
		*/
		message RailInfoProto {
		/** Index corresponding to the rail */
		optional int32 index = 1;

		/** Name of the rail (opaque to the framework) */
		optional string rail_name = 2;

		/** Name of the subsystem to which this rail belongs (opaque to the framework) */
		optional string subsys_name = 3;

		/** Hardware sampling rate */
		optional int32 sampling_rate = 4;
		}

		/**
		* Rail level energy measurements:
		* Reports accumulated energy since boot on each rail.
		*/
		message EnergyDataProto {
		/**
		* Index corresponding to the rail. This index matches
		* the index returned in RailInfo
		*/
		optional int32 index = 1;

		/** Time since device boot(CLOCK_BOOTTIME) in milli-seconds */
		optional int64 timestamp_ms = 2;

		/** Accumulated energy since device boot in microwatt-seconds (uWs) */
		optional int64 energy_uws = 3;
		}

services/core/java/com/android/server/powerstats/BatteryTrigger.java

0 → 100644

+65 −0

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		/*
		* 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.powerstats;

		import android.content.BroadcastReceiver;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.os.BatteryManager;
		import android.util.Log;

		/**
		* BatteryTrigger instantiates a BroadcastReceiver that listens for changes
		* to the battery. When the battery level drops by 1% a message is sent to
		* the PowerStatsLogger to log the rail energy data to on-device storage.
		*/
		public final class BatteryTrigger extends PowerStatsLogTrigger {
		private static final String TAG = BatteryTrigger.class.getSimpleName();
		private static final boolean DEBUG = false;

		private int mBatteryLevel = 0;

		private final BroadcastReceiver mBatteryLevelReceiver = new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
		switch (intent.getAction()) {
		case Intent.ACTION_BATTERY_CHANGED:
		int newBatteryLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0);

		if (newBatteryLevel < mBatteryLevel) {
		if (DEBUG) Log.d(TAG, "Battery level dropped. Log rail data");
		logPowerStatsData();
		}

		mBatteryLevel = newBatteryLevel;
		break;
		}
		}
		};

		public BatteryTrigger(Context context, PowerStatsLogger powerStatsLogger,
		boolean triggerEnabled) {
		super(context, powerStatsLogger);

		if (triggerEnabled) {
		IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
		Intent batteryStatus = mContext.registerReceiver(mBatteryLevelReceiver, filter);
		mBatteryLevel = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, 0);
		}
		}
		}

services/core/java/com/android/server/powerstats/PowerStatsData.java

0 → 100644

+286 −0

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		/*
		* 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.powerstats;

		import android.util.Log;
		import android.util.proto.ProtoInputStream;
		import android.util.proto.ProtoOutputStream;
		import android.util.proto.ProtoUtils;
		import android.util.proto.WireTypeMismatchException;

		import java.io.IOException;
		import java.util.ArrayList;
		import java.util.Arrays;
		import java.util.List;

		/**
		* PowerStatsData is a class that performs two operations:
		* 1) Unpacks serialized protobuf byte arrays, as defined in powerstatsservice.proto,
		* into RailInfo or EnergyData object arrays.
		*
		* 2) Packs RailInfo or EnergyData object arrays in protobuf byte arrays as
		* defined in powerstatsservice.proto.
		*
		* Inside frameworks, proto source is generated with the genstream option
		* and therefore the getter/setter helper functions are not available.
		* The protos need to be packed/unpacked in a more manual way using
		* ProtoOutputStream/ProtoInputStream.
		*/
		public class PowerStatsData {
		private static final String TAG = PowerStatsData.class.getSimpleName();

		private List<Data> mDataList;

		public PowerStatsData(ProtoInputStream pis) throws IOException {
		mDataList = new ArrayList<Data>();
		unpackProto(pis);
		}

		public PowerStatsData(Data[] data) {
		mDataList = new ArrayList<Data>(Arrays.asList(data));
		}

		private void unpackProto(ProtoInputStream pis) throws IOException {
		long token;

		while (true) {
		try {
		switch (pis.nextField()) {
		case (int) PowerStatsServiceProto.RAIL_INFO:
		token = pis.start(PowerStatsServiceProto.RAIL_INFO);
		mDataList.add(new RailInfo(pis));
		pis.end(token);
		break;

		case (int) PowerStatsServiceProto.ENERGY_DATA:
		token = pis.start(PowerStatsServiceProto.ENERGY_DATA);
		mDataList.add(new EnergyData(pis));
		pis.end(token);
		break;

		case ProtoInputStream.NO_MORE_FIELDS:
		return;

		default:
		Log.e(TAG, "Unhandled field in proto: "
		+ ProtoUtils.currentFieldToString(pis));
		break;
		}
		} catch (WireTypeMismatchException wtme) {
		Log.e(TAG, "Wire Type mismatch in proto: " + ProtoUtils.currentFieldToString(pis));
		}
		}
		}

		/**
		* Write this object to an output stream in protobuf format.
		*
		* @param pos ProtoOutputStream of file where data is to be written. Data is
		* written in protobuf format as defined by powerstatsservice.proto.
		*/
		public void toProto(ProtoOutputStream pos) {
		long token;

		for (Data data : mDataList) {
		if (data instanceof RailInfo) {
		token = pos.start(PowerStatsServiceProto.RAIL_INFO);
		} else {
		token = pos.start(PowerStatsServiceProto.ENERGY_DATA);
		}
		data.toProto(pos);
		pos.end(token);
		}
		}

		/**
		* Convert mDataList to proto format and return the serialized byte array.
		*
		* @return byte array containing a serialized protobuf of mDataList.
		*/
		public byte[] getProtoBytes() {
		ProtoOutputStream pos = new ProtoOutputStream();
		long token;

		for (Data data : mDataList) {
		if (data instanceof RailInfo) {
		token = pos.start(PowerStatsServiceProto.RAIL_INFO);
		} else {
		token = pos.start(PowerStatsServiceProto.ENERGY_DATA);
		}
		data.toProto(pos);
		pos.end(token);
		}
		return pos.getBytes();
		}

		/**
		* Print this object to logcat.
		*/
		public void print() {
		for (Data data : mDataList) {
		Log.d(TAG, data.toString());
		}
		}

		/**
		* RailInfo is a class that stores a description for an individual ODPM
		* rail. It provides functionality to unpack a RailInfo object from a
		* serialized protobuf byte array, and to pack a RailInfo object into
		* a ProtoOutputStream.
		*/
		public static class RailInfo extends Data {
		public String mRailName;
		public String mSubSysName;
		public long mSamplingRate;

		public RailInfo(ProtoInputStream pis) throws IOException {
		unpackProto(pis);
		}

		public RailInfo(long index, String railName, String subSysName, long samplingRate) {
		mIndex = index;
		mRailName = railName;
		mSubSysName = subSysName;
		mSamplingRate = samplingRate;
		}

		@Override
		protected void unpackProto(ProtoInputStream pis) throws IOException {
		while (true) {
		try {
		switch (pis.nextField()) {
		case (int) RailInfoProto.INDEX:
		mIndex = pis.readInt(RailInfoProto.INDEX);
		break;

		case (int) RailInfoProto.RAIL_NAME:
		mRailName = pis.readString(RailInfoProto.RAIL_NAME);
		break;

		case (int) RailInfoProto.SUBSYS_NAME:
		mSubSysName = pis.readString(RailInfoProto.SUBSYS_NAME);
		break;

		case (int) RailInfoProto.SAMPLING_RATE:
		mSamplingRate = pis.readInt(RailInfoProto.SAMPLING_RATE);
		break;

		case ProtoInputStream.NO_MORE_FIELDS:
		return;

		default:
		Log.e(TAG, "Unhandled field in RailInfoProto: "
		+ ProtoUtils.currentFieldToString(pis));
		break;
		}
		} catch (WireTypeMismatchException wtme) {
		Log.e(TAG, "Wire Type mismatch in RailInfoProto: "
		+ ProtoUtils.currentFieldToString(pis));
		}
		}
		}

		@Override
		public void toProto(ProtoOutputStream pos) {
		pos.write(RailInfoProto.INDEX, mIndex);
		pos.write(RailInfoProto.RAIL_NAME, mRailName);
		pos.write(RailInfoProto.SUBSYS_NAME, mSubSysName);
		pos.write(RailInfoProto.SAMPLING_RATE, mSamplingRate);
		}

		@Override
		public String toString() {
		return String.format("Index = " + mIndex
		+ ", RailName = " + mRailName
		+ ", SubSysName = " + mSubSysName
		+ ", SamplingRate = " + mSamplingRate);
		}
		}

		/**
		* EnergyData is a class that stores an energy (uWs) data reading for an
		* individual ODPM rail. It provides functionality to unpack an EnergyData
		* object from a serialized protobuf byte array, and to pack an EnergyData
		* object into a ProtoOutputStream.
		*/
		public static class EnergyData extends Data {
		public long mTimestampMs;
		public long mEnergyUWs;

		public EnergyData(ProtoInputStream pis) throws IOException {
		unpackProto(pis);
		}

		public EnergyData(long index, long timestampMs, long energyUWs) {
		mIndex = index;
		mTimestampMs = timestampMs;
		mEnergyUWs = energyUWs;
		}

		@Override
		protected void unpackProto(ProtoInputStream pis) throws IOException {
		while (true) {
		try {
		switch (pis.nextField()) {
		case (int) EnergyDataProto.INDEX:
		mIndex = pis.readInt(EnergyDataProto.INDEX);
		break;

		case (int) EnergyDataProto.TIMESTAMP_MS:
		mTimestampMs = pis.readLong(EnergyDataProto.TIMESTAMP_MS);
		break;

		case (int) EnergyDataProto.ENERGY_UWS:
		mEnergyUWs = pis.readLong(EnergyDataProto.ENERGY_UWS);
		break;

		case ProtoInputStream.NO_MORE_FIELDS:
		return;

		default:
		Log.e(TAG, "Unhandled field in EnergyDataProto: "
		+ ProtoUtils.currentFieldToString(pis));
		break;
		}
		} catch (WireTypeMismatchException wtme) {
		Log.e(TAG, "Wire Type mismatch in EnergyDataProto: "
		+ ProtoUtils.currentFieldToString(pis));
		}
		}
		}

		@Override
		protected void toProto(ProtoOutputStream pos) {
		pos.write(EnergyDataProto.INDEX, mIndex);
		pos.write(EnergyDataProto.TIMESTAMP_MS, mTimestampMs);
		pos.write(EnergyDataProto.ENERGY_UWS, mEnergyUWs);
		}

		@Override
		public String toString() {
		return String.format("Index = " + mIndex
		+ ", Timestamp (ms) = " + mTimestampMs
		+ ", Energy (uWs) = " + mEnergyUWs);
		}
		}

		private abstract static class Data {
		public long mIndex;
		protected abstract void unpackProto(ProtoInputStream pis) throws IOException;
		protected abstract void toProto(ProtoOutputStream pos);
		}
		}