Partially populate WifiUsabilityStatsEntry even without vendor HAL

Some devices do not have a vendor HAL, in particular the
Android Virtual Device used for testing. So fill in the fields
that we can, so that the API can be tested on these devices.

Bug: 152910948
Test: atest android.net.wifi.cts.ConnectedNetworkScorerTest
Change-Id: I91a70e4f7f58020667969bc2e68ae1d7f85bdd99

1 files changed, 10 insertions, 1 deletions

diff --git a/service/java/com/android/server/wifi/WifiMetrics.java b/service/java/com/android/server/wifi/WifiMetrics.java
index fb6173732..9b51fe38c 100644
--- a/service/java/com/android/server/wifi/WifiMetrics.java
+++ b/service/java/com/android/server/wifi/WifiMetrics.java
@@ -4844,9 +4844,18 @@ public class WifiMetrics {
      */
     public void updateWifiUsabilityStatsEntries(WifiInfo info, WifiLinkLayerStats stats) {
         synchronized (mLock) {
-            if (info == null || stats == null) {
+            if (info == null) {
                 return;
             }
+            if (stats == null) {
+                // For devices lacking vendor hal, fill in the parts that we can
+                stats = new WifiLinkLayerStats();
+                stats.timeStampInMs = mClock.getElapsedSinceBootMillis();
+                stats.txmpdu_be = info.txSuccess;
+                stats.retries_be = info.txRetries;
+                stats.lostmpdu_be = info.txBad;
+                stats.rxmpdu_be = info.rxSuccess;
+            }
             WifiUsabilityStatsEntry wifiUsabilityStatsEntry =
                     mWifiUsabilityStatsEntriesList.size()
                     < MAX_WIFI_USABILITY_STATS_ENTRIES_LIST_SIZE