| /* |
| * Copyright (C) 2009 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.internal.os; |
| |
| import static android.os.BatteryStats.NETWORK_MOBILE_RX_DATA; |
| import static android.os.BatteryStats.NETWORK_MOBILE_TX_DATA; |
| import static android.os.BatteryStats.NETWORK_WIFI_RX_DATA; |
| import static android.os.BatteryStats.NETWORK_WIFI_TX_DATA; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.hardware.Sensor; |
| import android.hardware.SensorManager; |
| import android.net.ConnectivityManager; |
| import android.os.BatteryStats; |
| import android.os.BatteryStats.Uid; |
| import android.os.Bundle; |
| import android.os.Parcel; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.telephony.SignalStrength; |
| import android.util.Log; |
| import android.util.SparseArray; |
| |
| import com.android.internal.app.IBatteryStats; |
| import com.android.internal.os.BatterySipper.DrainType; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * A helper class for retrieving the power usage information for all applications and services. |
| * |
| * The caller must initialize this class as soon as activity object is ready to use (for example, in |
| * onAttach() for Fragment), call create() in onCreate() and call destroy() in onDestroy(). |
| */ |
| public class BatteryStatsHelper { |
| |
| private static final boolean DEBUG = false; |
| |
| private static final String TAG = BatteryStatsHelper.class.getSimpleName(); |
| |
| private static BatteryStats sStatsXfer; |
| private static Intent sBatteryBroadcastXfer; |
| |
| final private Context mContext; |
| final private boolean mCollectBatteryBroadcast; |
| |
| private IBatteryStats mBatteryInfo; |
| private BatteryStats mStats; |
| private Intent mBatteryBroadcast; |
| private PowerProfile mPowerProfile; |
| |
| private final List<BatterySipper> mUsageList = new ArrayList<BatterySipper>(); |
| private final List<BatterySipper> mWifiSippers = new ArrayList<BatterySipper>(); |
| private final List<BatterySipper> mBluetoothSippers = new ArrayList<BatterySipper>(); |
| private final SparseArray<List<BatterySipper>> mUserSippers |
| = new SparseArray<List<BatterySipper>>(); |
| private final SparseArray<Double> mUserPower = new SparseArray<Double>(); |
| |
| private final List<BatterySipper> mMobilemsppList = new ArrayList<BatterySipper>(); |
| |
| private int mStatsType = BatteryStats.STATS_SINCE_CHARGED; |
| private int mAsUser = 0; |
| |
| long mRawRealtime; |
| long mRawUptime; |
| long mBatteryRealtime; |
| long mBatteryUptime; |
| long mTypeBatteryRealtime; |
| long mTypeBatteryUptime; |
| long mBatteryTimeRemaining; |
| long mChargeTimeRemaining; |
| |
| private long mStatsPeriod = 0; |
| private double mMaxPower = 1; |
| private double mComputedPower; |
| private double mTotalPower; |
| private double mWifiPower; |
| private double mBluetoothPower; |
| private double mMinDrainedPower; |
| private double mMaxDrainedPower; |
| |
| // How much the apps together have kept the mobile radio active. |
| private long mAppMobileActive; |
| |
| // How much the apps together have left WIFI running. |
| private long mAppWifiRunning; |
| |
| public BatteryStatsHelper(Context context) { |
| this(context, true); |
| } |
| |
| public BatteryStatsHelper(Context context, boolean collectBatteryBroadcast) { |
| mContext = context; |
| mCollectBatteryBroadcast = collectBatteryBroadcast; |
| } |
| |
| /** Clears the current stats and forces recreating for future use. */ |
| public void clearStats() { |
| mStats = null; |
| } |
| |
| public BatteryStats getStats() { |
| if (mStats == null) { |
| load(); |
| } |
| return mStats; |
| } |
| |
| public Intent getBatteryBroadcast() { |
| if (mBatteryBroadcast == null && mCollectBatteryBroadcast) { |
| load(); |
| } |
| return mBatteryBroadcast; |
| } |
| |
| public PowerProfile getPowerProfile() { |
| return mPowerProfile; |
| } |
| |
| public void create(BatteryStats stats) { |
| mPowerProfile = new PowerProfile(mContext); |
| mStats = stats; |
| } |
| |
| public void create(Bundle icicle) { |
| if (icicle != null) { |
| mStats = sStatsXfer; |
| mBatteryBroadcast = sBatteryBroadcastXfer; |
| } |
| mBatteryInfo = IBatteryStats.Stub.asInterface( |
| ServiceManager.getService(BatteryStats.SERVICE_NAME)); |
| mPowerProfile = new PowerProfile(mContext); |
| } |
| |
| public void storeState() { |
| sStatsXfer = mStats; |
| sBatteryBroadcastXfer = mBatteryBroadcast; |
| } |
| |
| public static String makemAh(double power) { |
| if (power < .00001) return String.format("%.8f", power); |
| else if (power < .0001) return String.format("%.7f", power); |
| else if (power < .001) return String.format("%.6f", power); |
| else if (power < .01) return String.format("%.5f", power); |
| else if (power < .1) return String.format("%.4f", power); |
| else if (power < 1) return String.format("%.3f", power); |
| else if (power < 10) return String.format("%.2f", power); |
| else if (power < 100) return String.format("%.1f", power); |
| else return String.format("%.0f", power); |
| } |
| |
| /** |
| * Refreshes the power usage list. |
| */ |
| public void refreshStats(int statsType, int asUser) { |
| refreshStats(statsType, asUser, SystemClock.elapsedRealtime() * 1000, |
| SystemClock.uptimeMillis() * 1000); |
| } |
| |
| public void refreshStats(int statsType, int asUser, long rawRealtimeUs, long rawUptimeUs) { |
| // Initialize mStats if necessary. |
| getStats(); |
| |
| mMaxPower = 0; |
| mComputedPower = 0; |
| mTotalPower = 0; |
| mWifiPower = 0; |
| mBluetoothPower = 0; |
| mAppMobileActive = 0; |
| mAppWifiRunning = 0; |
| |
| mUsageList.clear(); |
| mWifiSippers.clear(); |
| mBluetoothSippers.clear(); |
| mUserSippers.clear(); |
| mUserPower.clear(); |
| mMobilemsppList.clear(); |
| |
| if (mStats == null) { |
| return; |
| } |
| |
| mStatsType = statsType; |
| mAsUser = asUser; |
| mRawUptime = rawUptimeUs; |
| mRawRealtime = rawRealtimeUs; |
| mBatteryUptime = mStats.getBatteryUptime(rawUptimeUs); |
| mBatteryRealtime = mStats.getBatteryRealtime(rawRealtimeUs); |
| mTypeBatteryUptime = mStats.computeBatteryUptime(rawUptimeUs, mStatsType); |
| mTypeBatteryRealtime = mStats.computeBatteryRealtime(rawRealtimeUs, mStatsType); |
| mBatteryTimeRemaining = mStats.computeBatteryTimeRemaining(rawRealtimeUs); |
| mChargeTimeRemaining = mStats.computeChargeTimeRemaining(rawRealtimeUs); |
| |
| if (DEBUG) { |
| Log.d(TAG, "Raw time: realtime=" + (rawRealtimeUs/1000) + " uptime=" |
| + (rawUptimeUs/1000)); |
| Log.d(TAG, "Battery time: realtime=" + (mBatteryRealtime/1000) + " uptime=" |
| + (mBatteryUptime/1000)); |
| Log.d(TAG, "Battery type time: realtime=" + (mTypeBatteryRealtime/1000) + " uptime=" |
| + (mTypeBatteryUptime/1000)); |
| } |
| mMinDrainedPower = (mStats.getLowDischargeAmountSinceCharge() |
| * mPowerProfile.getBatteryCapacity()) / 100; |
| mMaxDrainedPower = (mStats.getHighDischargeAmountSinceCharge() |
| * mPowerProfile.getBatteryCapacity()) / 100; |
| |
| processAppUsage(); |
| |
| // Before aggregating apps in to users, collect all apps to sort by their ms per packet. |
| for (int i=0; i<mUsageList.size(); i++) { |
| BatterySipper bs = mUsageList.get(i); |
| bs.computeMobilemspp(); |
| if (bs.mobilemspp != 0) { |
| mMobilemsppList.add(bs); |
| } |
| } |
| for (int i=0; i<mUserSippers.size(); i++) { |
| List<BatterySipper> user = mUserSippers.valueAt(i); |
| for (int j=0; j<user.size(); j++) { |
| BatterySipper bs = user.get(j); |
| bs.computeMobilemspp(); |
| if (bs.mobilemspp != 0) { |
| mMobilemsppList.add(bs); |
| } |
| } |
| } |
| Collections.sort(mMobilemsppList, new Comparator<BatterySipper>() { |
| @Override |
| public int compare(BatterySipper lhs, BatterySipper rhs) { |
| if (lhs.mobilemspp < rhs.mobilemspp) { |
| return 1; |
| } else if (lhs.mobilemspp > rhs.mobilemspp) { |
| return -1; |
| } |
| return 0; |
| } |
| }); |
| |
| processMiscUsage(); |
| |
| if (DEBUG) { |
| Log.d(TAG, "Accuracy: total computed=" + makemAh(mComputedPower) + ", min discharge=" |
| + makemAh(mMinDrainedPower) + ", max discharge=" + makemAh(mMaxDrainedPower)); |
| } |
| mTotalPower = mComputedPower; |
| if (mStats.getLowDischargeAmountSinceCharge() > 1) { |
| if (mMinDrainedPower > mComputedPower) { |
| double amount = mMinDrainedPower - mComputedPower; |
| mTotalPower = mMinDrainedPower; |
| addEntryNoTotal(BatterySipper.DrainType.UNACCOUNTED, 0, amount); |
| } else if (mMaxDrainedPower < mComputedPower) { |
| double amount = mComputedPower - mMaxDrainedPower; |
| addEntryNoTotal(BatterySipper.DrainType.OVERCOUNTED, 0, amount); |
| } |
| } |
| |
| Collections.sort(mUsageList); |
| } |
| |
| private void processAppUsage() { |
| SensorManager sensorManager = (SensorManager) mContext.getSystemService( |
| Context.SENSOR_SERVICE); |
| final int which = mStatsType; |
| final int speedSteps = mPowerProfile.getNumSpeedSteps(); |
| final double[] powerCpuNormal = new double[speedSteps]; |
| final long[] cpuSpeedStepTimes = new long[speedSteps]; |
| for (int p = 0; p < speedSteps; p++) { |
| powerCpuNormal[p] = mPowerProfile.getAveragePower(PowerProfile.POWER_CPU_ACTIVE, p); |
| } |
| final double mobilePowerPerPacket = getMobilePowerPerPacket(); |
| final double mobilePowerPerMs = getMobilePowerPerMs(); |
| final double wifiPowerPerPacket = getWifiPowerPerPacket(); |
| long appWakelockTimeUs = 0; |
| BatterySipper osApp = null; |
| mStatsPeriod = mTypeBatteryRealtime; |
| SparseArray<? extends Uid> uidStats = mStats.getUidStats(); |
| final int NU = uidStats.size(); |
| for (int iu = 0; iu < NU; iu++) { |
| Uid u = uidStats.valueAt(iu); |
| double p; // in mAs |
| double power = 0; // in mAs |
| double highestDrain = 0; |
| String packageWithHighestDrain = null; |
| Map<String, ? extends BatteryStats.Uid.Proc> processStats = u.getProcessStats(); |
| long cpuTime = 0; |
| long cpuFgTime = 0; |
| long wakelockTime = 0; |
| long gpsTime = 0; |
| if (processStats.size() > 0) { |
| // Process CPU time |
| for (Map.Entry<String, ? extends BatteryStats.Uid.Proc> ent |
| : processStats.entrySet()) { |
| Uid.Proc ps = ent.getValue(); |
| final long userTime = ps.getUserTime(which); |
| final long systemTime = ps.getSystemTime(which); |
| final long foregroundTime = ps.getForegroundTime(which); |
| cpuFgTime += foregroundTime * 10; // convert to millis |
| final long tmpCpuTime = (userTime + systemTime) * 10; // convert to millis |
| int totalTimeAtSpeeds = 0; |
| // Get the total first |
| for (int step = 0; step < speedSteps; step++) { |
| cpuSpeedStepTimes[step] = ps.getTimeAtCpuSpeedStep(step, which); |
| totalTimeAtSpeeds += cpuSpeedStepTimes[step]; |
| } |
| if (totalTimeAtSpeeds == 0) totalTimeAtSpeeds = 1; |
| // Then compute the ratio of time spent at each speed |
| double processPower = 0; |
| for (int step = 0; step < speedSteps; step++) { |
| double ratio = (double) cpuSpeedStepTimes[step] / totalTimeAtSpeeds; |
| if (DEBUG && ratio != 0) Log.d(TAG, "UID " + u.getUid() + ": CPU step #" |
| + step + " ratio=" + makemAh(ratio) + " power=" |
| + makemAh(ratio*tmpCpuTime*powerCpuNormal[step] / (60*60*1000))); |
| processPower += ratio * tmpCpuTime * powerCpuNormal[step]; |
| } |
| cpuTime += tmpCpuTime; |
| if (DEBUG && processPower != 0) { |
| Log.d(TAG, String.format("process %s, cpu power=%s", |
| ent.getKey(), makemAh(processPower / (60*60*1000)))); |
| } |
| power += processPower; |
| if (packageWithHighestDrain == null |
| || packageWithHighestDrain.startsWith("*")) { |
| highestDrain = processPower; |
| packageWithHighestDrain = ent.getKey(); |
| } else if (highestDrain < processPower |
| && !ent.getKey().startsWith("*")) { |
| highestDrain = processPower; |
| packageWithHighestDrain = ent.getKey(); |
| } |
| } |
| } |
| if (cpuFgTime > cpuTime) { |
| if (DEBUG && cpuFgTime > cpuTime + 10000) { |
| Log.d(TAG, "WARNING! Cputime is more than 10 seconds behind Foreground time"); |
| } |
| cpuTime = cpuFgTime; // Statistics may not have been gathered yet. |
| } |
| power /= (60*60*1000); |
| |
| // Process wake lock usage |
| Map<String, ? extends BatteryStats.Uid.Wakelock> wakelockStats = u.getWakelockStats(); |
| for (Map.Entry<String, ? extends BatteryStats.Uid.Wakelock> wakelockEntry |
| : wakelockStats.entrySet()) { |
| Uid.Wakelock wakelock = wakelockEntry.getValue(); |
| // Only care about partial wake locks since full wake locks |
| // are canceled when the user turns the screen off. |
| BatteryStats.Timer timer = wakelock.getWakeTime(BatteryStats.WAKE_TYPE_PARTIAL); |
| if (timer != null) { |
| wakelockTime += timer.getTotalTimeLocked(mRawRealtime, which); |
| } |
| } |
| appWakelockTimeUs += wakelockTime; |
| wakelockTime /= 1000; // convert to millis |
| |
| // Add cost of holding a wake lock |
| p = (wakelockTime |
| * mPowerProfile.getAveragePower(PowerProfile.POWER_CPU_AWAKE)) / (60*60*1000); |
| if (DEBUG && p != 0) Log.d(TAG, "UID " + u.getUid() + ": wake " |
| + wakelockTime + " power=" + makemAh(p)); |
| power += p; |
| |
| // Add cost of mobile traffic |
| final long mobileRx = u.getNetworkActivityPackets(NETWORK_MOBILE_RX_DATA, mStatsType); |
| final long mobileTx = u.getNetworkActivityPackets(NETWORK_MOBILE_TX_DATA, mStatsType); |
| final long mobileRxB = u.getNetworkActivityBytes(NETWORK_MOBILE_RX_DATA, mStatsType); |
| final long mobileTxB = u.getNetworkActivityBytes(NETWORK_MOBILE_TX_DATA, mStatsType); |
| final long mobileActive = u.getMobileRadioActiveTime(mStatsType); |
| if (mobileActive > 0) { |
| // We are tracking when the radio is up, so can use the active time to |
| // determine power use. |
| mAppMobileActive += mobileActive; |
| p = (mobilePowerPerMs * mobileActive) / 1000; |
| } else { |
| // We are not tracking when the radio is up, so must approximate power use |
| // based on the number of packets. |
| p = (mobileRx + mobileTx) * mobilePowerPerPacket; |
| } |
| if (DEBUG && p != 0) Log.d(TAG, "UID " + u.getUid() + ": mobile packets " |
| + (mobileRx+mobileTx) + " active time " + mobileActive |
| + " power=" + makemAh(p)); |
| power += p; |
| |
| // Add cost of wifi traffic |
| final long wifiRx = u.getNetworkActivityPackets(NETWORK_WIFI_RX_DATA, mStatsType); |
| final long wifiTx = u.getNetworkActivityPackets(NETWORK_WIFI_TX_DATA, mStatsType); |
| final long wifiRxB = u.getNetworkActivityBytes(NETWORK_WIFI_RX_DATA, mStatsType); |
| final long wifiTxB = u.getNetworkActivityBytes(NETWORK_WIFI_TX_DATA, mStatsType); |
| p = (wifiRx + wifiTx) * wifiPowerPerPacket; |
| if (DEBUG && p != 0) Log.d(TAG, "UID " + u.getUid() + ": wifi packets " |
| + (mobileRx+mobileTx) + " power=" + makemAh(p)); |
| power += p; |
| |
| // Add cost of keeping WIFI running. |
| long wifiRunningTimeMs = u.getWifiRunningTime(mRawRealtime, which) / 1000; |
| mAppWifiRunning += wifiRunningTimeMs; |
| p = (wifiRunningTimeMs |
| * mPowerProfile.getAveragePower(PowerProfile.POWER_WIFI_ON)) / (60*60*1000); |
| if (DEBUG && p != 0) Log.d(TAG, "UID " + u.getUid() + ": wifi running " |
| + wifiRunningTimeMs + " power=" + makemAh(p)); |
| power += p; |
| |
| // Add cost of WIFI scans |
| long wifiScanTimeMs = u.getWifiScanTime(mRawRealtime, which) / 1000; |
| p = (wifiScanTimeMs |
| * mPowerProfile.getAveragePower(PowerProfile.POWER_WIFI_SCAN)) / (60*60*1000); |
| if (DEBUG) Log.d(TAG, "UID " + u.getUid() + ": wifi scan " + wifiScanTimeMs |
| + " power=" + makemAh(p)); |
| power += p; |
| for (int bin = 0; bin < BatteryStats.Uid.NUM_WIFI_BATCHED_SCAN_BINS; bin++) { |
| long batchScanTimeMs = u.getWifiBatchedScanTime(bin, mRawRealtime, which) / 1000; |
| p = ((batchScanTimeMs |
| * mPowerProfile.getAveragePower(PowerProfile.POWER_WIFI_BATCHED_SCAN, bin)) |
| ) / (60*60*1000); |
| if (DEBUG && p != 0) Log.d(TAG, "UID " + u.getUid() + ": wifi batched scan # " + bin |
| + " time=" + batchScanTimeMs + " power=" + makemAh(p)); |
| power += p; |
| } |
| |
| // Process Sensor usage |
| Map<Integer, ? extends BatteryStats.Uid.Sensor> sensorStats = u.getSensorStats(); |
| for (Map.Entry<Integer, ? extends BatteryStats.Uid.Sensor> sensorEntry |
| : sensorStats.entrySet()) { |
| Uid.Sensor sensor = sensorEntry.getValue(); |
| int sensorHandle = sensor.getHandle(); |
| BatteryStats.Timer timer = sensor.getSensorTime(); |
| long sensorTime = timer.getTotalTimeLocked(mRawRealtime, which) / 1000; |
| double multiplier = 0; |
| switch (sensorHandle) { |
| case Uid.Sensor.GPS: |
| multiplier = mPowerProfile.getAveragePower(PowerProfile.POWER_GPS_ON); |
| gpsTime = sensorTime; |
| break; |
| default: |
| List<Sensor> sensorList = sensorManager.getSensorList( |
| android.hardware.Sensor.TYPE_ALL); |
| for (android.hardware.Sensor s : sensorList) { |
| if (s.getHandle() == sensorHandle) { |
| multiplier = s.getPower(); |
| break; |
| } |
| } |
| } |
| p = (multiplier * sensorTime) / (60*60*1000); |
| if (DEBUG && p != 0) Log.d(TAG, "UID " + u.getUid() + ": sensor #" + sensorHandle |
| + " time=" + sensorTime + " power=" + makemAh(p)); |
| power += p; |
| } |
| |
| if (DEBUG && power != 0) Log.d(TAG, String.format("UID %d: total power=%s", |
| u.getUid(), makemAh(power))); |
| |
| // Add the app to the list if it is consuming power |
| final int userId = UserHandle.getUserId(u.getUid()); |
| if (power != 0 || u.getUid() == 0) { |
| BatterySipper app = new BatterySipper(BatterySipper.DrainType.APP, u, |
| new double[] {power}); |
| app.cpuTime = cpuTime; |
| app.gpsTime = gpsTime; |
| app.wifiRunningTime = wifiRunningTimeMs; |
| app.cpuFgTime = cpuFgTime; |
| app.wakeLockTime = wakelockTime; |
| app.mobileRxPackets = mobileRx; |
| app.mobileTxPackets = mobileTx; |
| app.mobileActive = mobileActive / 1000; |
| app.mobileActiveCount = u.getMobileRadioActiveCount(mStatsType); |
| app.wifiRxPackets = wifiRx; |
| app.wifiTxPackets = wifiTx; |
| app.mobileRxBytes = mobileRxB; |
| app.mobileTxBytes = mobileTxB; |
| app.wifiRxBytes = wifiRxB; |
| app.wifiTxBytes = wifiTxB; |
| app.packageWithHighestDrain = packageWithHighestDrain; |
| if (u.getUid() == Process.WIFI_UID) { |
| mWifiSippers.add(app); |
| mWifiPower += power; |
| } else if (u.getUid() == Process.BLUETOOTH_UID) { |
| mBluetoothSippers.add(app); |
| mBluetoothPower += power; |
| } else if (mAsUser != UserHandle.USER_ALL && userId != mAsUser |
| && UserHandle.getAppId(u.getUid()) >= Process.FIRST_APPLICATION_UID) { |
| List<BatterySipper> list = mUserSippers.get(userId); |
| if (list == null) { |
| list = new ArrayList<BatterySipper>(); |
| mUserSippers.put(userId, list); |
| } |
| list.add(app); |
| if (power != 0) { |
| Double userPower = mUserPower.get(userId); |
| if (userPower == null) { |
| userPower = power; |
| } else { |
| userPower += power; |
| } |
| mUserPower.put(userId, userPower); |
| } |
| } else { |
| mUsageList.add(app); |
| if (power > mMaxPower) mMaxPower = power; |
| mComputedPower += power; |
| } |
| if (u.getUid() == 0) { |
| osApp = app; |
| } |
| } |
| } |
| |
| // The device has probably been awake for longer than the screen on |
| // time and application wake lock time would account for. Assign |
| // this remainder to the OS, if possible. |
| if (osApp != null) { |
| long wakeTimeMillis = mBatteryUptime / 1000; |
| wakeTimeMillis -= (appWakelockTimeUs / 1000) |
| + (mStats.getScreenOnTime(mRawRealtime, which) / 1000); |
| if (wakeTimeMillis > 0) { |
| double power = (wakeTimeMillis |
| * mPowerProfile.getAveragePower(PowerProfile.POWER_CPU_AWAKE)) |
| / (60*60*1000); |
| if (DEBUG) Log.d(TAG, "OS wakeLockTime " + wakeTimeMillis + " power " |
| + makemAh(power)); |
| osApp.wakeLockTime += wakeTimeMillis; |
| osApp.value += power; |
| osApp.values[0] += power; |
| if (osApp.value > mMaxPower) mMaxPower = osApp.value; |
| mComputedPower += power; |
| } |
| } |
| } |
| |
| private void addPhoneUsage() { |
| long phoneOnTimeMs = mStats.getPhoneOnTime(mRawRealtime, mStatsType) / 1000; |
| double phoneOnPower = mPowerProfile.getAveragePower(PowerProfile.POWER_RADIO_ACTIVE) |
| * phoneOnTimeMs / (60*60*1000); |
| if (phoneOnPower != 0) { |
| BatterySipper bs = addEntry(BatterySipper.DrainType.PHONE, phoneOnTimeMs, phoneOnPower); |
| } |
| } |
| |
| private void addScreenUsage() { |
| double power = 0; |
| long screenOnTimeMs = mStats.getScreenOnTime(mRawRealtime, mStatsType) / 1000; |
| power += screenOnTimeMs * mPowerProfile.getAveragePower(PowerProfile.POWER_SCREEN_ON); |
| final double screenFullPower = |
| mPowerProfile.getAveragePower(PowerProfile.POWER_SCREEN_FULL); |
| for (int i = 0; i < BatteryStats.NUM_SCREEN_BRIGHTNESS_BINS; i++) { |
| double screenBinPower = screenFullPower * (i + 0.5f) |
| / BatteryStats.NUM_SCREEN_BRIGHTNESS_BINS; |
| long brightnessTime = mStats.getScreenBrightnessTime(i, mRawRealtime, mStatsType) |
| / 1000; |
| double p = screenBinPower*brightnessTime; |
| if (DEBUG && p != 0) { |
| Log.d(TAG, "Screen bin #" + i + ": time=" + brightnessTime |
| + " power=" + makemAh(p / (60 * 60 * 1000))); |
| } |
| power += p; |
| } |
| power /= (60*60*1000); // To hours |
| if (power != 0) { |
| addEntry(BatterySipper.DrainType.SCREEN, screenOnTimeMs, power); |
| } |
| } |
| |
| private void addRadioUsage() { |
| double power = 0; |
| final int BINS = SignalStrength.NUM_SIGNAL_STRENGTH_BINS; |
| long signalTimeMs = 0; |
| long noCoverageTimeMs = 0; |
| for (int i = 0; i < BINS; i++) { |
| long strengthTimeMs = mStats.getPhoneSignalStrengthTime(i, mRawRealtime, mStatsType) |
| / 1000; |
| double p = (strengthTimeMs * mPowerProfile.getAveragePower(PowerProfile.POWER_RADIO_ON, i)) |
| / (60*60*1000); |
| if (DEBUG && p != 0) { |
| Log.d(TAG, "Cell strength #" + i + ": time=" + strengthTimeMs + " power=" |
| + makemAh(p)); |
| } |
| power += p; |
| signalTimeMs += strengthTimeMs; |
| if (i == 0) { |
| noCoverageTimeMs = strengthTimeMs; |
| } |
| } |
| long scanningTimeMs = mStats.getPhoneSignalScanningTime(mRawRealtime, mStatsType) |
| / 1000; |
| double p = (scanningTimeMs * mPowerProfile.getAveragePower( |
| PowerProfile.POWER_RADIO_SCANNING)) |
| / (60*60*1000); |
| if (DEBUG && p != 0) { |
| Log.d(TAG, "Cell radio scanning: time=" + scanningTimeMs + " power=" + makemAh(p)); |
| } |
| power += p; |
| long radioActiveTimeUs = mStats.getMobileRadioActiveTime(mRawRealtime, mStatsType); |
| long remainingActiveTime = (radioActiveTimeUs - mAppMobileActive) / 1000; |
| if (remainingActiveTime > 0) { |
| power += getMobilePowerPerMs() * remainingActiveTime; |
| } |
| if (power != 0) { |
| BatterySipper bs = |
| addEntry(BatterySipper.DrainType.CELL, signalTimeMs, power); |
| if (signalTimeMs != 0) { |
| bs.noCoveragePercent = noCoverageTimeMs * 100.0 / signalTimeMs; |
| } |
| bs.mobileActive = remainingActiveTime; |
| bs.mobileActiveCount = mStats.getMobileRadioActiveUnknownCount(mStatsType); |
| } |
| } |
| |
| private void aggregateSippers(BatterySipper bs, List<BatterySipper> from, String tag) { |
| for (int i=0; i<from.size(); i++) { |
| BatterySipper wbs = from.get(i); |
| if (DEBUG) Log.d(TAG, tag + " adding sipper " + wbs + ": cpu=" + wbs.cpuTime); |
| bs.cpuTime += wbs.cpuTime; |
| bs.gpsTime += wbs.gpsTime; |
| bs.wifiRunningTime += wbs.wifiRunningTime; |
| bs.cpuFgTime += wbs.cpuFgTime; |
| bs.wakeLockTime += wbs.wakeLockTime; |
| bs.mobileRxPackets += wbs.mobileRxPackets; |
| bs.mobileTxPackets += wbs.mobileTxPackets; |
| bs.mobileActive += wbs.mobileActive; |
| bs.mobileActiveCount += wbs.mobileActiveCount; |
| bs.wifiRxPackets += wbs.wifiRxPackets; |
| bs.wifiTxPackets += wbs.wifiTxPackets; |
| bs.mobileRxBytes += wbs.mobileRxBytes; |
| bs.mobileTxBytes += wbs.mobileTxBytes; |
| bs.wifiRxBytes += wbs.wifiRxBytes; |
| bs.wifiTxBytes += wbs.wifiTxBytes; |
| } |
| bs.computeMobilemspp(); |
| } |
| |
| private void addWiFiUsage() { |
| long onTimeMs = mStats.getWifiOnTime(mRawRealtime, mStatsType) / 1000; |
| long runningTimeMs = mStats.getGlobalWifiRunningTime(mRawRealtime, mStatsType) / 1000; |
| if (DEBUG) Log.d(TAG, "WIFI runningTime=" + runningTimeMs |
| + " app runningTime=" + mAppWifiRunning); |
| runningTimeMs -= mAppWifiRunning; |
| if (runningTimeMs < 0) runningTimeMs = 0; |
| double wifiPower = (onTimeMs * 0 /* TODO */ |
| * mPowerProfile.getAveragePower(PowerProfile.POWER_WIFI_ON) |
| + runningTimeMs * mPowerProfile.getAveragePower(PowerProfile.POWER_WIFI_ON)) |
| / (60*60*1000); |
| if (DEBUG && wifiPower != 0) { |
| Log.d(TAG, "Wifi: time=" + runningTimeMs + " power=" + makemAh(wifiPower)); |
| } |
| if ((wifiPower+mWifiPower) != 0) { |
| BatterySipper bs = addEntry(BatterySipper.DrainType.WIFI, runningTimeMs, |
| wifiPower + mWifiPower); |
| aggregateSippers(bs, mWifiSippers, "WIFI"); |
| } |
| } |
| |
| private void addIdleUsage() { |
| long idleTimeMs = (mTypeBatteryRealtime |
| - mStats.getScreenOnTime(mRawRealtime, mStatsType)) / 1000; |
| double idlePower = (idleTimeMs * mPowerProfile.getAveragePower(PowerProfile.POWER_CPU_IDLE)) |
| / (60*60*1000); |
| if (DEBUG && idlePower != 0) { |
| Log.d(TAG, "Idle: time=" + idleTimeMs + " power=" + makemAh(idlePower)); |
| } |
| if (idlePower != 0) { |
| addEntry(BatterySipper.DrainType.IDLE, idleTimeMs, idlePower); |
| } |
| } |
| |
| private void addBluetoothUsage() { |
| long btOnTimeMs = mStats.getBluetoothOnTime(mRawRealtime, mStatsType) / 1000; |
| double btPower = btOnTimeMs * mPowerProfile.getAveragePower(PowerProfile.POWER_BLUETOOTH_ON) |
| / (60*60*1000); |
| if (DEBUG && btPower != 0) { |
| Log.d(TAG, "Bluetooth: time=" + btOnTimeMs + " power=" + makemAh(btPower)); |
| } |
| int btPingCount = mStats.getBluetoothPingCount(); |
| double pingPower = (btPingCount |
| * mPowerProfile.getAveragePower(PowerProfile.POWER_BLUETOOTH_AT_CMD)) |
| / (60*60*1000); |
| if (DEBUG && pingPower != 0) { |
| Log.d(TAG, "Bluetooth ping: count=" + btPingCount + " power=" + makemAh(pingPower)); |
| } |
| btPower += pingPower; |
| if ((btPower+mBluetoothPower) != 0) { |
| BatterySipper bs = addEntry(BatterySipper.DrainType.BLUETOOTH, btOnTimeMs, |
| btPower + mBluetoothPower); |
| aggregateSippers(bs, mBluetoothSippers, "Bluetooth"); |
| } |
| } |
| |
| private void addUserUsage() { |
| for (int i=0; i<mUserSippers.size(); i++) { |
| final int userId = mUserSippers.keyAt(i); |
| final List<BatterySipper> sippers = mUserSippers.valueAt(i); |
| Double userPower = mUserPower.get(userId); |
| double power = (userPower != null) ? userPower : 0.0; |
| BatterySipper bs = addEntry(BatterySipper.DrainType.USER, 0, power); |
| bs.userId = userId; |
| aggregateSippers(bs, sippers, "User"); |
| } |
| } |
| |
| /** |
| * Return estimated power (in mAs) of sending or receiving a packet with the mobile radio. |
| */ |
| private double getMobilePowerPerPacket() { |
| final long MOBILE_BPS = 200000; // TODO: Extract average bit rates from system |
| final double MOBILE_POWER = mPowerProfile.getAveragePower(PowerProfile.POWER_RADIO_ACTIVE) |
| / 3600; |
| |
| final long mobileRx = mStats.getNetworkActivityPackets(NETWORK_MOBILE_RX_DATA, mStatsType); |
| final long mobileTx = mStats.getNetworkActivityPackets(NETWORK_MOBILE_TX_DATA, mStatsType); |
| final long mobileData = mobileRx + mobileTx; |
| |
| final long radioDataUptimeMs |
| = mStats.getMobileRadioActiveTime(mRawRealtime, mStatsType) / 1000; |
| final double mobilePps = (mobileData != 0 && radioDataUptimeMs != 0) |
| ? (mobileData / (double)radioDataUptimeMs) |
| : (((double)MOBILE_BPS) / 8 / 2048); |
| |
| return (MOBILE_POWER / mobilePps) / (60*60); |
| } |
| |
| /** |
| * Return estimated power (in mAs) of keeping the radio up |
| */ |
| private double getMobilePowerPerMs() { |
| return mPowerProfile.getAveragePower(PowerProfile.POWER_RADIO_ACTIVE) / (60*60*1000); |
| } |
| |
| /** |
| * Return estimated power (in mAs) of sending a byte with the Wi-Fi radio. |
| */ |
| private double getWifiPowerPerPacket() { |
| final long WIFI_BPS = 1000000; // TODO: Extract average bit rates from system |
| final double WIFI_POWER = mPowerProfile.getAveragePower(PowerProfile.POWER_WIFI_ACTIVE) |
| / 3600; |
| return (WIFI_POWER / (((double)WIFI_BPS) / 8 / 2048)) / (60*60); |
| } |
| |
| private void processMiscUsage() { |
| addUserUsage(); |
| addPhoneUsage(); |
| addScreenUsage(); |
| addWiFiUsage(); |
| addBluetoothUsage(); |
| addIdleUsage(); // Not including cellular idle power |
| // Don't compute radio usage if it's a wifi-only device |
| ConnectivityManager cm = (ConnectivityManager)mContext.getSystemService( |
| Context.CONNECTIVITY_SERVICE); |
| if (cm.isNetworkSupported(ConnectivityManager.TYPE_MOBILE)) { |
| addRadioUsage(); |
| } |
| } |
| |
| private BatterySipper addEntry(DrainType drainType, long time, double power) { |
| mComputedPower += power; |
| return addEntryNoTotal(drainType, time, power); |
| } |
| |
| private BatterySipper addEntryNoTotal(DrainType drainType, long time, double power) { |
| if (power > mMaxPower) mMaxPower = power; |
| BatterySipper bs = new BatterySipper(drainType, null, new double[] {power}); |
| bs.usageTime = time; |
| mUsageList.add(bs); |
| return bs; |
| } |
| |
| public List<BatterySipper> getUsageList() { |
| return mUsageList; |
| } |
| |
| public List<BatterySipper> getMobilemsppList() { |
| return mMobilemsppList; |
| } |
| |
| public long getStatsPeriod() { return mStatsPeriod; } |
| |
| public int getStatsType() { return mStatsType; }; |
| |
| public double getMaxPower() { return mMaxPower; } |
| |
| public double getTotalPower() { return mTotalPower; } |
| |
| public double getComputedPower() { return mComputedPower; } |
| |
| public double getMinDrainedPower() { |
| return mMinDrainedPower; |
| } |
| |
| public double getMaxDrainedPower() { |
| return mMaxDrainedPower; |
| } |
| |
| public long getBatteryTimeRemaining() { return mBatteryTimeRemaining; } |
| |
| public long getChargeTimeRemaining() { return mChargeTimeRemaining; } |
| |
| private void load() { |
| if (mBatteryInfo == null) { |
| return; |
| } |
| try { |
| byte[] data = mBatteryInfo.getStatistics(); |
| Parcel parcel = Parcel.obtain(); |
| parcel.unmarshall(data, 0, data.length); |
| parcel.setDataPosition(0); |
| BatteryStatsImpl stats = com.android.internal.os.BatteryStatsImpl.CREATOR |
| .createFromParcel(parcel); |
| stats.distributeWorkLocked(BatteryStats.STATS_SINCE_CHARGED); |
| mStats = stats; |
| } catch (RemoteException e) { |
| Log.e(TAG, "RemoteException:", e); |
| } |
| if (mCollectBatteryBroadcast) { |
| mBatteryBroadcast = mContext.registerReceiver(null, |
| new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); |
| } |
| } |
| } |
