Wifi: Add scanning, activity time and API
Addition of Wifi Scanning time to Aggregate BatteryStats
Addition of Wifi Active time to BatteryStats (aggregate)
Addition of API to obtain Wifi battery stats for power drain diagnostics.
BUG:67213886
Test: Manual
Change-Id: I4f4c27ba839017d44feca685a4fae2f130d31765
diff --git a/core/java/android/os/BatteryStats.java b/core/java/android/os/BatteryStats.java
index 49879a8..03a8dba 100644
--- a/core/java/android/os/BatteryStats.java
+++ b/core/java/android/os/BatteryStats.java
@@ -336,6 +336,9 @@
private final StringBuilder mFormatBuilder = new StringBuilder(32);
private final Formatter mFormatter = new Formatter(mFormatBuilder);
+ private static final String CELLULAR_CONTROLLER_NAME = "Cellular";
+ private static final String WIFI_CONTROLLER_NAME = "WiFi";
+
/**
* Indicates times spent by the uid at each cpu frequency in all process states.
*
@@ -413,6 +416,13 @@
/**
* @return a non-null {@link LongCounter} representing time spent (milliseconds) in the
+ * scan state.
+ */
+ public abstract LongCounter getScanTimeCounter();
+
+
+ /**
+ * @return a non-null {@link LongCounter} representing time spent (milliseconds) in the
* receive state.
*/
public abstract LongCounter getRxTimeCounter();
@@ -2399,6 +2409,14 @@
public abstract long getWifiOnTime(long elapsedRealtimeUs, int which);
/**
+ * Returns the time in microseconds that wifi has been active while the device was
+ * running on battery.
+ *
+ * {@hide}
+ */
+ public abstract long getWifiActiveTime(long elapsedRealtimeUs, int which);
+
+ /**
* Returns the time in microseconds that wifi has been on and the driver has
* been in the running state while the device was running on battery.
*
@@ -3345,6 +3363,20 @@
final long sleepTimeMs
= totalControllerActivityTimeMs - (idleTimeMs + rxTimeMs + totalTxTimeMs);
+ if (controllerName.equals(WIFI_CONTROLLER_NAME)) {
+ final long scanTimeMs = counter.getScanTimeCounter().getCountLocked(which);
+ sb.setLength(0);
+ sb.append(prefix);
+ sb.append(" ");
+ sb.append(controllerName);
+ sb.append(" Scan time: ");
+ formatTimeMs(sb, scanTimeMs);
+ sb.append("(");
+ sb.append(formatRatioLocked(scanTimeMs, totalControllerActivityTimeMs));
+ sb.append(")");
+ pw.println(sb.toString());
+ }
+
sb.setLength(0);
sb.append(prefix);
sb.append(" ");
@@ -3386,7 +3418,7 @@
String [] powerLevel;
switch(controllerName) {
- case "Cellular":
+ case CELLULAR_CONTROLLER_NAME:
powerLevel = new String[] {
" less than 0dBm: ",
" 0dBm to 8dBm: ",
@@ -4674,7 +4706,7 @@
if (!didOne) sb.append(" (no activity)");
pw.println(sb.toString());
- printControllerActivity(pw, sb, prefix, "Cellular",
+ printControllerActivity(pw, sb, prefix, CELLULAR_CONTROLLER_NAME,
getModemControllerActivity(), which);
pw.print(prefix);
@@ -4683,6 +4715,16 @@
sb.append(" Wifi Statistics:");
pw.println(sb.toString());
+ pw.print(prefix);
+ sb.setLength(0);
+ sb.append(prefix);
+ sb.append(" Wifi kernel active time: ");
+ final long wifiActiveTime = getWifiActiveTime(rawRealtime, which);
+ formatTimeMs(sb, wifiActiveTime / 1000);
+ sb.append("("); sb.append(formatRatioLocked(wifiActiveTime, whichBatteryRealtime));
+ sb.append(")");
+ pw.println(sb.toString());
+
pw.print(" Wifi data received: "); pw.println(formatBytesLocked(wifiRxTotalBytes));
pw.print(" Wifi data sent: "); pw.println(formatBytesLocked(wifiTxTotalBytes));
pw.print(" Wifi packets received: "); pw.println(wifiRxTotalPackets);
@@ -4760,7 +4802,8 @@
if (!didOne) sb.append(" (no activity)");
pw.println(sb.toString());
- printControllerActivity(pw, sb, prefix, "WiFi", getWifiControllerActivity(), which);
+ printControllerActivity(pw, sb, prefix, WIFI_CONTROLLER_NAME,
+ getWifiControllerActivity(), which);
pw.print(prefix);
sb.setLength(0);
@@ -5238,8 +5281,8 @@
pw.println(sb.toString());
}
- printControllerActivityIfInteresting(pw, sb, prefix + " ", "Modem",
- u.getModemControllerActivity(), which);
+ printControllerActivityIfInteresting(pw, sb, prefix + " ",
+ CELLULAR_CONTROLLER_NAME, u.getModemControllerActivity(), which);
if (wifiRxBytes > 0 || wifiTxBytes > 0 || wifiRxPackets > 0 || wifiTxPackets > 0) {
pw.print(prefix); pw.print(" Wi-Fi network: ");
@@ -5293,7 +5336,7 @@
pw.println(sb.toString());
}
- printControllerActivityIfInteresting(pw, sb, prefix + " ", "WiFi",
+ printControllerActivityIfInteresting(pw, sb, prefix + " ", WIFI_CONTROLLER_NAME,
u.getWifiControllerActivity(), which);
if (btRxBytes > 0 || btTxBytes > 0) {