package com.android.internal.os;
import android.os.BatteryStats;
import android.util.Log;
public class WifiPowerCalculator extends PowerCalculator {
private static final boolean DEBUG = BatteryStatsHelper.DEBUG;
private static final String TAG = "WifiPowerCalculator";
private final double mIdleCurrentMa;
private final double mTxCurrentMa;
private final double mRxCurrentMa;
private double mTotalAppPowerDrain = 0;
private long mTotalAppRunningTime = 0;
public WifiPowerCalculator(PowerProfile profile) {
mIdleCurrentMa = profile.getAveragePower(PowerProfile.POWER_WIFI_CONTROLLER_IDLE);
mTxCurrentMa = profile.getAveragePower(PowerProfile.POWER_WIFI_CONTROLLER_TX);
mRxCurrentMa = profile.getAveragePower(PowerProfile.POWER_WIFI_CONTROLLER_RX);
}
@Override
public void calculateApp(BatterySipper app, BatteryStats.Uid u, long rawRealtimeUs,
long rawUptimeUs, int statsType) {
final BatteryStats.ControllerActivityCounter counter = u.getWifiControllerActivity();
if (counter == null) {
return;
}
final long idleTime = counter.getIdleTimeCounter().getCountLocked(statsType);
final long txTime = counter.getTxTimeCounters()[0].getCountLocked(statsType);
final long rxTime = counter.getRxTimeCounter().getCountLocked(statsType);
app.wifiRunningTimeMs = idleTime + rxTime + txTime;
mTotalAppRunningTime += app.wifiRunningTimeMs;
app.wifiPowerMah =
((idleTime * mIdleCurrentMa) + (txTime * mTxCurrentMa) + (rxTime * mRxCurrentMa))
/ (1000*60*60);
mTotalAppPowerDrain += app.wifiPowerMah;
app.wifiRxPackets = u.getNetworkActivityPackets(BatteryStats.NETWORK_WIFI_RX_DATA,
statsType);
app.wifiTxPackets = u.getNetworkActivityPackets(BatteryStats.NETWORK_WIFI_TX_DATA,
statsType);
app.wifiRxBytes = u.getNetworkActivityBytes(BatteryStats.NETWORK_WIFI_RX_DATA,
statsType);
app.wifiTxBytes = u.getNetworkActivityBytes(BatteryStats.NETWORK_WIFI_TX_DATA,
statsType);
if (DEBUG && app.wifiPowerMah != 0) {
Log.d(TAG, "UID " + u.getUid() + ": idle=" + idleTime + "ms rx=" + rxTime + "ms tx=" +
txTime + "ms power=" + BatteryStatsHelper.makemAh(app.wifiPowerMah));
}
}
@Override
public void calculateRemaining(BatterySipper app, BatteryStats stats, long rawRealtimeUs,
long rawUptimeUs, int statsType) {
final BatteryStats.ControllerActivityCounter counter = stats.getWifiControllerActivity();
final long idleTimeMs = counter.getIdleTimeCounter().getCountLocked(statsType);
final long txTimeMs = counter.getTxTimeCounters()[0].getCountLocked(statsType);
final long rxTimeMs = counter.getRxTimeCounter().getCountLocked(statsType);
app.wifiRunningTimeMs = Math.max(0,
(idleTimeMs + rxTimeMs + txTimeMs) - mTotalAppRunningTime);
double powerDrainMah = counter.getPowerCounter().getCountLocked(statsType)
/ (double)(1000*60*60);
if (powerDrainMah == 0) {
powerDrainMah = ((idleTimeMs * mIdleCurrentMa) + (txTimeMs * mTxCurrentMa)
+ (rxTimeMs * mRxCurrentMa)) / (1000*60*60);
}
app.wifiPowerMah = Math.max(0, powerDrainMah - mTotalAppPowerDrain);
if (DEBUG) {
Log.d(TAG, "left over WiFi power: " + BatteryStatsHelper.makemAh(app.wifiPowerMah));
}
}
@Override
public void reset() {
mTotalAppPowerDrain = 0;
mTotalAppRunningTime = 0;
}
}