1 package com.android.internal.os; 2 3 import android.os.BatteryStats; 4 import android.util.Log; 5 import android.util.LongSparseArray; 6 7 public class MemoryPowerCalculator extends PowerCalculator { 8 9 public static final String TAG = "MemoryPowerCalculator"; 10 private static final boolean DEBUG = BatteryStatsHelper.DEBUG; 11 private final double[] powerAverages; 12 13 public MemoryPowerCalculator(PowerProfile profile) { 14 int numBuckets = profile.getNumElements(PowerProfile.POWER_MEMORY); 15 powerAverages = new double[numBuckets]; 16 for (int i = 0; i < numBuckets; i++) { 17 powerAverages[i] = profile.getAveragePower(PowerProfile.POWER_MEMORY, i); 18 if (powerAverages[i] == 0 && DEBUG) { 19 Log.d(TAG, "Problem with PowerProfile. Received 0 value in MemoryPowerCalculator"); 20 } 21 } 22 } 23 24 @Override 25 public void calculateApp(BatterySipper app, BatteryStats.Uid u, long rawRealtimeUs, 26 long rawUptimeUs, int statsType) {} 27 28 @Override 29 public void calculateRemaining(BatterySipper app, BatteryStats stats, long rawRealtimeUs, 30 long rawUptimeUs, int statsType) { 31 double totalMah = 0; 32 long totalTimeMs = 0; 33 LongSparseArray<? extends BatteryStats.Timer> timers = stats.getKernelMemoryStats(); 34 for (int i = 0; i < timers.size() && i < powerAverages.length; i++) { 35 double mAatRail = powerAverages[(int) timers.keyAt(i)]; 36 long timeMs = timers.valueAt(i).getTotalTimeLocked(rawRealtimeUs, statsType); 37 double mAm = (mAatRail * timeMs) / (1000*60); 38 if(DEBUG) { 39 Log.d(TAG, "Calculating mAh for bucket " + timers.keyAt(i) + " while unplugged"); 40 Log.d(TAG, "Converted power profile number from " 41 + powerAverages[(int) timers.keyAt(i)] + " into " + mAatRail); 42 Log.d(TAG, "Calculated mAm " + mAm); 43 } 44 totalMah += mAm/60; 45 totalTimeMs += timeMs; 46 } 47 app.usagePowerMah = totalMah; 48 app.usageTimeMs = totalTimeMs; 49 if (DEBUG) { 50 Log.d(TAG, String.format("Calculated total mAh for memory %f while unplugged %d ", 51 totalMah, totalTimeMs)); 52 } 53 } 54 } 55
