Proper fix for zero signal strength and no_service. Fixes #2176141

Track phone service state changes and use a separate timer for out-of-service
since the hunting can timeout on some devices.

Store the timeout value in the config.xml, as it is device/network specific.

Settings App will also change to use the hunting duration to compute the cost
of zero signal.

2 files changed, 6 insertions, 3 deletions

diff --git a/services/java/com/android/server/TelephonyRegistry.java b/services/java/com/android/server/TelephonyRegistry.java
index 101b075..47cb6ad 100644
--- a/services/java/com/android/server/TelephonyRegistry.java
+++ b/services/java/com/android/server/TelephonyRegistry.java
@@ -477,7 +477,7 @@ class TelephonyRegistry extends ITelephonyRegistry.Stub {
     private void broadcastServiceStateChanged(ServiceState state) {
         long ident = Binder.clearCallingIdentity();
         try {
-            mBatteryStats.noteAirplaneMode(state.getState() == ServiceState.STATE_POWER_OFF);
+            mBatteryStats.notePhoneState(state.getState());
         } catch (RemoteException re) {
             // Can't do much
         } finally {
diff --git a/services/java/com/android/server/am/BatteryStatsService.java b/services/java/com/android/server/am/BatteryStatsService.java
index 61537f5..5a1619a 100644
--- a/services/java/com/android/server/am/BatteryStatsService.java
+++ b/services/java/com/android/server/am/BatteryStatsService.java
@@ -51,6 +51,9 @@ public final class BatteryStatsService extends IBatteryStats.Stub {
         mContext = context;
         ServiceManager.addService("batteryinfo", asBinder());
         mStats.setNumSpeedSteps(new PowerProfile(mContext).getNumSpeedSteps());
+        mStats.setRadioScanningTimeout(mContext.getResources().getInteger(
+                com.android.internal.R.integer.config_radioScanningTimeout)
+                * 1000L);
     }
     
     public void shutdown() {
@@ -195,10 +198,10 @@ public final class BatteryStatsService extends IBatteryStats.Stub {
         }
     }
 
-    public void noteAirplaneMode(boolean airplaneMode) {
+    public void notePhoneState(int state) {
         enforceCallingPermission();
         synchronized (mStats) {
-            mStats.noteAirplaneModeLocked(airplaneMode);
+            mStats.notePhoneStateLocked(state);
         }
     }