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.Log; 20 21 public class BluetoothPowerCalculator extends PowerCalculator { 22 private static final boolean DEBUG = BatteryStatsHelper.DEBUG; 23 private static final String TAG = "BluetoothPowerCalculator"; 24 private final double mIdleMa; 25 private final double mRxMa; 26 private final double mTxMa; 27 private double mAppTotalPowerMah = 0; 28 private long mAppTotalTimeMs = 0; 29 30 public BluetoothPowerCalculator(PowerProfile profile) { 31 mIdleMa = profile.getAveragePower(PowerProfile.POWER_BLUETOOTH_CONTROLLER_IDLE); 32 mRxMa = profile.getAveragePower(PowerProfile.POWER_BLUETOOTH_CONTROLLER_RX); 33 mTxMa = profile.getAveragePower(PowerProfile.POWER_BLUETOOTH_CONTROLLER_TX); 34 } 35 36 @Override 37 public void calculateApp(BatterySipper app, BatteryStats.Uid u, long rawRealtimeUs, 38 long rawUptimeUs, int statsType) { 39 40 final BatteryStats.ControllerActivityCounter counter = u.getBluetoothControllerActivity(); 41 if (counter == null) { 42 return; 43 } 44 45 final long idleTimeMs = counter.getIdleTimeCounter().getCountLocked(statsType); 46 final long rxTimeMs = counter.getRxTimeCounter().getCountLocked(statsType); 47 final long txTimeMs = counter.getTxTimeCounters()[0].getCountLocked(statsType); 48 final long totalTimeMs = idleTimeMs + txTimeMs + rxTimeMs; 49 double powerMah = counter.getPowerCounter().getCountLocked(statsType) 50 / (double)(1000*60*60); 51 52 if (powerMah == 0) { 53 powerMah = ((idleTimeMs * mIdleMa) + (rxTimeMs * mRxMa) + (txTimeMs * mTxMa)) 54 / (1000*60*60); 55 } 56 57 app.bluetoothPowerMah = powerMah; 58 app.bluetoothRunningTimeMs = totalTimeMs; 59 app.btRxBytes = u.getNetworkActivityBytes(BatteryStats.NETWORK_BT_RX_DATA, statsType); 60 app.btTxBytes = u.getNetworkActivityBytes(BatteryStats.NETWORK_BT_TX_DATA, statsType); 61 62 mAppTotalPowerMah += powerMah; 63 mAppTotalTimeMs += totalTimeMs; 64 } 65 66 @Override 67 public void calculateRemaining(BatterySipper app, BatteryStats stats, long rawRealtimeUs, 68 long rawUptimeUs, int statsType) { 69 final BatteryStats.ControllerActivityCounter counter = 70 stats.getBluetoothControllerActivity(); 71 72 final long idleTimeMs = counter.getIdleTimeCounter().getCountLocked(statsType); 73 final long txTimeMs = counter.getTxTimeCounters()[0].getCountLocked(statsType); 74 final long rxTimeMs = counter.getRxTimeCounter().getCountLocked(statsType); 75 final long totalTimeMs = idleTimeMs + txTimeMs + rxTimeMs; 76 double powerMah = counter.getPowerCounter().getCountLocked(statsType) 77 / (double)(1000*60*60); 78 79 if (powerMah == 0) { 80 // Some devices do not report the power, so calculate it. 81 powerMah = ((idleTimeMs * mIdleMa) + (rxTimeMs * mRxMa) + (txTimeMs * mTxMa)) 82 / (1000*60*60); 83 } 84 85 // Subtract what the apps used, but clamp to 0. 86 powerMah = Math.max(0, powerMah - mAppTotalPowerMah); 87 88 if (DEBUG && powerMah != 0) { 89 Log.d(TAG, "Bluetooth active: time=" + (totalTimeMs) 90 + " power=" + BatteryStatsHelper.makemAh(powerMah)); 91 } 92 93 app.bluetoothPowerMah = powerMah; 94 app.bluetoothRunningTimeMs = Math.max(0, totalTimeMs - mAppTotalTimeMs); 95 } 96 97 @Override 98 public void reset() { 99 mAppTotalPowerMah = 0; 100 mAppTotalTimeMs = 0; 101 } 102 } 103
