| /* |
| * 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 android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.hardware.SensorManager; |
| import android.net.ConnectivityManager; |
| import android.os.BatteryStats; |
| import android.os.BatteryStats.Uid; |
| import android.os.Bundle; |
| import android.os.MemoryFile; |
| import android.os.Parcel; |
| import android.os.ParcelFileDescriptor; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.util.ArrayMap; |
| import android.util.Log; |
| import android.util.SparseArray; |
| |
| import com.android.internal.app.IBatteryStats; |
| import com.android.internal.os.BatterySipper.DrainType; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| /** |
| * 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 final class BatteryStatsHelper { |
| static final boolean DEBUG = false; |
| |
| private static final String TAG = BatteryStatsHelper.class.getSimpleName(); |
| |
| private static BatteryStats sStatsXfer; |
| private static Intent sBatteryBroadcastXfer; |
| private static ArrayMap<File, BatteryStats> sFileXfer = new ArrayMap<>(); |
| |
| final private Context mContext; |
| final private boolean mCollectBatteryBroadcast; |
| final private boolean mWifiOnly; |
| |
| private IBatteryStats mBatteryInfo; |
| private BatteryStats mStats; |
| private Intent mBatteryBroadcast; |
| private PowerProfile mPowerProfile; |
| |
| /** |
| * List of apps using power. |
| */ |
| private final List<BatterySipper> mUsageList = new ArrayList<>(); |
| |
| /** |
| * List of apps using wifi power. |
| */ |
| private final List<BatterySipper> mWifiSippers = new ArrayList<>(); |
| |
| /** |
| * List of apps using bluetooth power. |
| */ |
| private final List<BatterySipper> mBluetoothSippers = new ArrayList<>(); |
| |
| private final SparseArray<List<BatterySipper>> mUserSippers = new SparseArray<>(); |
| |
| private final List<BatterySipper> mMobilemsppList = new ArrayList<>(); |
| |
| private int mStatsType = BatteryStats.STATS_SINCE_CHARGED; |
| |
| long mRawRealtime; |
| long mRawUptime; |
| long mBatteryRealtime; |
| long mBatteryUptime; |
| long mTypeBatteryRealtime; |
| long mTypeBatteryUptime; |
| long mBatteryTimeRemaining; |
| long mChargeTimeRemaining; |
| |
| private long mStatsPeriod = 0; |
| |
| // The largest entry by power. |
| private double mMaxPower = 1; |
| |
| // The largest real entry by power (not undercounted or overcounted). |
| private double mMaxRealPower = 1; |
| |
| // Total computed power. |
| private double mComputedPower; |
| private double mTotalPower; |
| private double mMinDrainedPower; |
| private double mMaxDrainedPower; |
| |
| PowerCalculator mCpuPowerCalculator; |
| PowerCalculator mWakelockPowerCalculator; |
| MobileRadioPowerCalculator mMobileRadioPowerCalculator; |
| PowerCalculator mWifiPowerCalculator; |
| PowerCalculator mBluetoothPowerCalculator; |
| PowerCalculator mSensorPowerCalculator; |
| |
| public static boolean checkWifiOnly(Context context) { |
| ConnectivityManager cm = (ConnectivityManager)context.getSystemService( |
| Context.CONNECTIVITY_SERVICE); |
| return !cm.isNetworkSupported(ConnectivityManager.TYPE_MOBILE); |
| } |
| |
| public static boolean checkHasWifiPowerReporting(BatteryStats stats, PowerProfile profile) { |
| return stats.hasWifiActivityReporting() && |
| profile.getAveragePower(PowerProfile.POWER_WIFI_CONTROLLER_IDLE) != 0 && |
| profile.getAveragePower(PowerProfile.POWER_WIFI_CONTROLLER_RX) != 0 && |
| profile.getAveragePower(PowerProfile.POWER_WIFI_CONTROLLER_TX) != 0; |
| } |
| |
| public static boolean checkHasBluetoothPowerReporting(BatteryStats stats, |
| PowerProfile profile) { |
| return stats.hasBluetoothActivityReporting() && |
| profile.getAveragePower(PowerProfile.POWER_BLUETOOTH_CONTROLLER_IDLE) != 0 && |
| profile.getAveragePower(PowerProfile.POWER_BLUETOOTH_CONTROLLER_RX) != 0 && |
| profile.getAveragePower(PowerProfile.POWER_BLUETOOTH_CONTROLLER_TX) != 0; |
| } |
| |
| public BatteryStatsHelper(Context context) { |
| this(context, true); |
| } |
| |
| public BatteryStatsHelper(Context context, boolean collectBatteryBroadcast) { |
| this(context, collectBatteryBroadcast, checkWifiOnly(context)); |
| } |
| |
| public BatteryStatsHelper(Context context, boolean collectBatteryBroadcast, boolean wifiOnly) { |
| mContext = context; |
| mCollectBatteryBroadcast = collectBatteryBroadcast; |
| mWifiOnly = wifiOnly; |
| } |
| |
| public void storeStatsHistoryInFile(String fname) { |
| synchronized (sFileXfer) { |
| File path = makeFilePath(mContext, fname); |
| sFileXfer.put(path, this.getStats()); |
| FileOutputStream fout = null; |
| try { |
| fout = new FileOutputStream(path); |
| Parcel hist = Parcel.obtain(); |
| getStats().writeToParcelWithoutUids(hist, 0); |
| byte[] histData = hist.marshall(); |
| fout.write(histData); |
| } catch (IOException e) { |
| Log.w(TAG, "Unable to write history to file", e); |
| } finally { |
| if (fout != null) { |
| try { |
| fout.close(); |
| } catch (IOException e) { |
| } |
| } |
| } |
| } |
| } |
| |
| public static BatteryStats statsFromFile(Context context, String fname) { |
| synchronized (sFileXfer) { |
| File path = makeFilePath(context, fname); |
| BatteryStats stats = sFileXfer.get(path); |
| if (stats != null) { |
| return stats; |
| } |
| FileInputStream fin = null; |
| try { |
| fin = new FileInputStream(path); |
| byte[] data = readFully(fin); |
| Parcel parcel = Parcel.obtain(); |
| parcel.unmarshall(data, 0, data.length); |
| parcel.setDataPosition(0); |
| return com.android.internal.os.BatteryStatsImpl.CREATOR.createFromParcel(parcel); |
| } catch (IOException e) { |
| Log.w(TAG, "Unable to read history to file", e); |
| } finally { |
| if (fin != null) { |
| try { |
| fin.close(); |
| } catch (IOException e) { |
| } |
| } |
| } |
| } |
| return getStats(IBatteryStats.Stub.asInterface( |
| ServiceManager.getService(BatteryStats.SERVICE_NAME))); |
| } |
| |
| public static void dropFile(Context context, String fname) { |
| makeFilePath(context, fname).delete(); |
| } |
| |
| private static File makeFilePath(Context context, String fname) { |
| return new File(context.getFilesDir(), fname); |
| } |
| |
| /** 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 == 0) return "0"; |
| else 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) { |
| SparseArray<UserHandle> users = new SparseArray<>(1); |
| users.put(asUser, new UserHandle(asUser)); |
| refreshStats(statsType, users); |
| } |
| |
| /** |
| * Refreshes the power usage list. |
| */ |
| public void refreshStats(int statsType, List<UserHandle> asUsers) { |
| final int n = asUsers.size(); |
| SparseArray<UserHandle> users = new SparseArray<>(n); |
| for (int i = 0; i < n; ++i) { |
| UserHandle userHandle = asUsers.get(i); |
| users.put(userHandle.getIdentifier(), userHandle); |
| } |
| refreshStats(statsType, users); |
| } |
| |
| /** |
| * Refreshes the power usage list. |
| */ |
| public void refreshStats(int statsType, SparseArray<UserHandle> asUsers) { |
| refreshStats(statsType, asUsers, SystemClock.elapsedRealtime() * 1000, |
| SystemClock.uptimeMillis() * 1000); |
| } |
| |
| public void refreshStats(int statsType, SparseArray<UserHandle> asUsers, long rawRealtimeUs, |
| long rawUptimeUs) { |
| // Initialize mStats if necessary. |
| getStats(); |
| |
| mMaxPower = 0; |
| mMaxRealPower = 0; |
| mComputedPower = 0; |
| mTotalPower = 0; |
| |
| mUsageList.clear(); |
| mWifiSippers.clear(); |
| mBluetoothSippers.clear(); |
| mUserSippers.clear(); |
| mMobilemsppList.clear(); |
| |
| if (mStats == null) { |
| return; |
| } |
| |
| if (mCpuPowerCalculator == null) { |
| mCpuPowerCalculator = new CpuPowerCalculator(mPowerProfile); |
| } |
| mCpuPowerCalculator.reset(); |
| |
| if (mWakelockPowerCalculator == null) { |
| mWakelockPowerCalculator = new WakelockPowerCalculator(mPowerProfile); |
| } |
| mWakelockPowerCalculator.reset(); |
| |
| if (mMobileRadioPowerCalculator == null) { |
| mMobileRadioPowerCalculator = new MobileRadioPowerCalculator(mPowerProfile, mStats); |
| } |
| mMobileRadioPowerCalculator.reset(mStats); |
| |
| if (mWifiPowerCalculator == null) { |
| if (checkHasWifiPowerReporting(mStats, mPowerProfile)) { |
| mWifiPowerCalculator = new WifiPowerCalculator(mPowerProfile); |
| } else { |
| mWifiPowerCalculator = new WifiPowerEstimator(mPowerProfile); |
| } |
| } |
| mWifiPowerCalculator.reset(); |
| |
| if (mBluetoothPowerCalculator == null) { |
| if (checkHasBluetoothPowerReporting(mStats, mPowerProfile)) { |
| mBluetoothPowerCalculator = new BluetoothPowerCalculator(); |
| } else { |
| mBluetoothPowerCalculator = new BluetoothPowerCalculator(); |
| } |
| } |
| mBluetoothPowerCalculator.reset(); |
| |
| if (mSensorPowerCalculator == null) { |
| mSensorPowerCalculator = new SensorPowerCalculator(mPowerProfile, |
| (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE)); |
| } |
| mSensorPowerCalculator.reset(); |
| |
| mStatsType = statsType; |
| 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(asUsers); |
| |
| // 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) { |
| return Double.compare(rhs.mobilemspp, lhs.mobilemspp); |
| } |
| }); |
| |
| processMiscUsage(); |
| |
| Collections.sort(mUsageList); |
| |
| // At this point, we've sorted the list so we are guaranteed the max values are at the top. |
| // We have only added real powers so far. |
| if (!mUsageList.isEmpty()) { |
| mMaxRealPower = mMaxPower = mUsageList.get(0).totalPowerMah; |
| final int usageListCount = mUsageList.size(); |
| for (int i = 0; i < usageListCount; i++) { |
| mComputedPower += mUsageList.get(i).totalPowerMah; |
| } |
| } |
| |
| 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; |
| BatterySipper bs = new BatterySipper(DrainType.UNACCOUNTED, null, amount); |
| |
| // Insert the BatterySipper in its sorted position. |
| int index = Collections.binarySearch(mUsageList, bs); |
| if (index < 0) { |
| index = -(index + 1); |
| } |
| mUsageList.add(index, bs); |
| mMaxPower = Math.max(mMaxPower, amount); |
| } else if (mMaxDrainedPower < mComputedPower) { |
| double amount = mComputedPower - mMaxDrainedPower; |
| |
| // Insert the BatterySipper in its sorted position. |
| BatterySipper bs = new BatterySipper(DrainType.OVERCOUNTED, null, amount); |
| int index = Collections.binarySearch(mUsageList, bs); |
| if (index < 0) { |
| index = -(index + 1); |
| } |
| mUsageList.add(index, bs); |
| mMaxPower = Math.max(mMaxPower, amount); |
| } |
| } |
| } |
| |
| private void processAppUsage(SparseArray<UserHandle> asUsers) { |
| final boolean forAllUsers = (asUsers.get(UserHandle.USER_ALL) != null); |
| mStatsPeriod = mTypeBatteryRealtime; |
| |
| final SparseArray<? extends Uid> uidStats = mStats.getUidStats(); |
| final int NU = uidStats.size(); |
| for (int iu = 0; iu < NU; iu++) { |
| final Uid u = uidStats.valueAt(iu); |
| final BatterySipper app = new BatterySipper(BatterySipper.DrainType.APP, u, 0); |
| |
| mCpuPowerCalculator.calculateApp(app, u, mRawRealtime, mRawUptime, mStatsType); |
| mWakelockPowerCalculator.calculateApp(app, u, mRawRealtime, mRawUptime, mStatsType); |
| mMobileRadioPowerCalculator.calculateApp(app, u, mRawRealtime, mRawUptime, mStatsType); |
| mWifiPowerCalculator.calculateApp(app, u, mRawRealtime, mRawUptime, mStatsType); |
| mBluetoothPowerCalculator.calculateApp(app, u, mRawRealtime, mRawUptime, mStatsType); |
| mSensorPowerCalculator.calculateApp(app, u, mRawRealtime, mRawUptime, mStatsType); |
| |
| final double totalPower = app.sumPower(); |
| if (DEBUG && totalPower != 0) { |
| Log.d(TAG, String.format("UID %d: total power=%s", u.getUid(), |
| makemAh(totalPower))); |
| } |
| |
| // Add the app to the list if it is consuming power. |
| if (totalPower != 0 || u.getUid() == 0) { |
| // |
| // Add the app to the app list, WiFi, Bluetooth, etc, or into "Other Users" list. |
| // |
| final int uid = app.getUid(); |
| final int userId = UserHandle.getUserId(uid); |
| if (uid == Process.WIFI_UID) { |
| mWifiSippers.add(app); |
| } else if (uid == Process.BLUETOOTH_UID) { |
| mBluetoothSippers.add(app); |
| } else if (!forAllUsers && asUsers.get(userId) == null |
| && UserHandle.getAppId(uid) >= Process.FIRST_APPLICATION_UID) { |
| // We are told to just report this user's apps as one large entry. |
| List<BatterySipper> list = mUserSippers.get(userId); |
| if (list == null) { |
| list = new ArrayList<>(); |
| mUserSippers.put(userId, list); |
| } |
| list.add(app); |
| } else { |
| mUsageList.add(app); |
| } |
| |
| if (uid == 0) { |
| // 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. |
| mWakelockPowerCalculator.calculateRemaining(app, mStats, mRawRealtime, |
| mRawUptime, mStatsType); |
| app.sumPower(); |
| } |
| } |
| } |
| } |
| |
| 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) { |
| 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() { |
| BatterySipper radio = new BatterySipper(BatterySipper.DrainType.CELL, null, 0); |
| mMobileRadioPowerCalculator.calculateRemaining(radio, mStats, mRawRealtime, mRawUptime, |
| mStatsType); |
| radio.sumPower(); |
| if (radio.totalPowerMah > 0) { |
| mUsageList.add(radio); |
| } |
| } |
| |
| 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.cpuTimeMs); |
| bs.add(wbs); |
| } |
| bs.computeMobilemspp(); |
| } |
| |
| 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); |
| } |
| } |
| |
| /** |
| * We do per-app blaming of WiFi activity. If energy info is reported from the controller, |
| * then only the WiFi process gets blamed here since we normalize power calculations and |
| * assign all the power drain to apps. If energy info is not reported, we attribute the |
| * difference between total running time of WiFi for all apps and the actual running time |
| * of WiFi to the WiFi subsystem. |
| */ |
| private void addWiFiUsage() { |
| BatterySipper bs = new BatterySipper(DrainType.WIFI, null, 0); |
| mWifiPowerCalculator.calculateRemaining(bs, mStats, mRawRealtime, mRawUptime, mStatsType); |
| bs.sumPower(); |
| if (bs.totalPowerMah > 0 || !mWifiSippers.isEmpty()) { |
| aggregateSippers(bs, mWifiSippers, "WIFI"); |
| mUsageList.add(bs); |
| } |
| } |
| |
| /** |
| * Bluetooth usage is not attributed to any apps yet, so the entire blame goes to the |
| * Bluetooth Category. |
| */ |
| private void addBluetoothUsage() { |
| BatterySipper bs = new BatterySipper(BatterySipper.DrainType.BLUETOOTH, null, 0); |
| mBluetoothPowerCalculator.calculateRemaining(bs, mStats, mRawRealtime, mRawUptime, |
| mStatsType); |
| if (bs.sumPower() > 0) { |
| aggregateSippers(bs, mBluetoothSippers, "Bluetooth"); |
| } |
| } |
| |
| private void addFlashlightUsage() { |
| long flashlightOnTimeMs = mStats.getFlashlightOnTime(mRawRealtime, mStatsType) / 1000; |
| double flashlightPower = flashlightOnTimeMs |
| * mPowerProfile.getAveragePower(PowerProfile.POWER_FLASHLIGHT) / (60*60*1000); |
| if (flashlightPower != 0) { |
| addEntry(BatterySipper.DrainType.FLASHLIGHT, flashlightOnTimeMs, flashlightPower); |
| } |
| } |
| |
| private void addUserUsage() { |
| for (int i = 0; i < mUserSippers.size(); i++) { |
| final int userId = mUserSippers.keyAt(i); |
| BatterySipper bs = new BatterySipper(DrainType.USER, null, 0); |
| bs.userId = userId; |
| aggregateSippers(bs, mUserSippers.valueAt(i), "User"); |
| bs.sumPower(); |
| mUsageList.add(bs); |
| } |
| } |
| |
| private void processMiscUsage() { |
| addUserUsage(); |
| addPhoneUsage(); |
| addScreenUsage(); |
| addFlashlightUsage(); |
| addWiFiUsage(); |
| addBluetoothUsage(); |
| addIdleUsage(); // Not including cellular idle power |
| // Don't compute radio usage if it's a wifi-only device |
| if (!mWifiOnly) { |
| addRadioUsage(); |
| } |
| } |
| |
| private BatterySipper addEntry(DrainType drainType, long time, double power) { |
| BatterySipper bs = new BatterySipper(drainType, null, 0); |
| bs.usagePowerMah = power; |
| bs.usageTimeMs = time; |
| bs.sumPower(); |
| 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 getMaxRealPower() { return mMaxRealPower; } |
| |
| 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; } |
| |
| public static byte[] readFully(FileInputStream stream) throws java.io.IOException { |
| return readFully(stream, stream.available()); |
| } |
| |
| public static byte[] readFully(FileInputStream stream, int avail) throws java.io.IOException { |
| int pos = 0; |
| byte[] data = new byte[avail]; |
| while (true) { |
| int amt = stream.read(data, pos, data.length-pos); |
| //Log.i("foo", "Read " + amt + " bytes at " + pos |
| // + " of avail " + data.length); |
| if (amt <= 0) { |
| //Log.i("foo", "**** FINISHED READING: pos=" + pos |
| // + " len=" + data.length); |
| return data; |
| } |
| pos += amt; |
| avail = stream.available(); |
| if (avail > data.length-pos) { |
| byte[] newData = new byte[pos+avail]; |
| System.arraycopy(data, 0, newData, 0, pos); |
| data = newData; |
| } |
| } |
| } |
| |
| private void load() { |
| if (mBatteryInfo == null) { |
| return; |
| } |
| mStats = getStats(mBatteryInfo); |
| if (mCollectBatteryBroadcast) { |
| mBatteryBroadcast = mContext.registerReceiver(null, |
| new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); |
| } |
| } |
| |
| private static BatteryStatsImpl getStats(IBatteryStats service) { |
| try { |
| ParcelFileDescriptor pfd = service.getStatisticsStream(); |
| if (pfd != null) { |
| FileInputStream fis = new ParcelFileDescriptor.AutoCloseInputStream(pfd); |
| try { |
| byte[] data = readFully(fis, MemoryFile.getSize(pfd.getFileDescriptor())); |
| 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); |
| return stats; |
| } catch (IOException e) { |
| Log.w(TAG, "Unable to read statistics stream", e); |
| } |
| } |
| } catch (RemoteException e) { |
| Log.w(TAG, "RemoteException:", e); |
| } |
| return new BatteryStatsImpl(); |
| } |
| } |