Add code to use Gservices provided values for throtting NITZ updates.
bug: 2251845
Change-Id: Ie122606fb852868bb76a9930bb5e6ba906273619
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index cb3dc16..7433a79 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -3638,6 +3638,19 @@
public static final String LAST_KMSG_KB = "last_kmsg_kb";
/**
+ * The length of time in milli-seconds that automatic small adjustments to
+ * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
+ */
+ public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
+
+ /**
+ * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
+ * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
+ * exceeded.
+ */
+ public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
+
+ /**
* @deprecated
* @hide
*/
diff --git a/telephony/java/com/android/internal/telephony/cdma/CdmaServiceStateTracker.java b/telephony/java/com/android/internal/telephony/cdma/CdmaServiceStateTracker.java
index bb3f2a7..425682a 100644
--- a/telephony/java/com/android/internal/telephony/cdma/CdmaServiceStateTracker.java
+++ b/telephony/java/com/android/internal/telephony/cdma/CdmaServiceStateTracker.java
@@ -76,6 +76,7 @@
private static final int NITZ_UPDATE_DIFF_DEFAULT = 2000;
private int mNitzUpdateDiff = SystemProperties.getInt("ro.nitz_update_diff",
NITZ_UPDATE_DIFF_DEFAULT);
+
/**
* Values correspond to ServiceStateTracker.DATA_ACCESS_ definitions.
*/
@@ -159,6 +160,7 @@
super();
this.phone = phone;
+ cr = phone.getContext().getContentResolver();
cm = phone.mCM;
ss = new ServiceState();
newSS = new ServiceState();
@@ -184,12 +186,9 @@
cm.registerForCdmaOtaProvision(this,EVENT_OTA_PROVISION_STATUS_CHANGE, null);
// System setting property AIRPLANE_MODE_ON is set in Settings.
- int airplaneMode = Settings.System.getInt(
- phone.getContext().getContentResolver(),
- Settings.System.AIRPLANE_MODE_ON, 0);
+ int airplaneMode = Settings.System.getInt(cr, Settings.System.AIRPLANE_MODE_ON, 0);
mDesiredPowerState = ! (airplaneMode > 0);
- cr = phone.getContext().getContentResolver();
cr.registerContentObserver(
Settings.System.getUriFor(Settings.System.AUTO_TIME), true,
mAutoTimeObserver);
@@ -1021,8 +1020,7 @@
}
if (hasRegistered) {
- Checkin.updateStats(phone.getContext().getContentResolver(),
- Checkin.Stats.Tag.PHONE_CDMA_REGISTERED, 1, 0.0);
+ Checkin.updateStats(cr, Checkin.Stats.Tag.PHONE_CDMA_REGISTERED, 1, 0.0);
networkAttachedRegistrants.notifyRegistrants();
}
@@ -1460,9 +1458,13 @@
*/
long gained = c.getTimeInMillis() - System.currentTimeMillis();
long timeSinceLastUpdate = SystemClock.elapsedRealtime() - mSavedAtTime;
+ int nitzUpdateSpacing = Settings.Gservices.getInt(cr,
+ Settings.Gservices.NITZ_UPDATE_SPACING, mNitzUpdateSpacing);
+ int nitzUpdateDiff = Settings.Gservices.getInt(cr,
+ Settings.Gservices.NITZ_UPDATE_DIFF, mNitzUpdateDiff);
- if ((timeSinceLastUpdate > mNitzUpdateSpacing)
- || (Math.abs(gained) > mNitzUpdateDiff)) {
+ if ((mSavedAtTime == 0) || (timeSinceLastUpdate > nitzUpdateSpacing)
+ || (Math.abs(gained) > nitzUpdateDiff)) {
Log.i(LOG_TAG, "NITZ: Auto updating time of day to " + c.getTime()
+ " NITZ receive delay=" + millisSinceNitzReceived
+ "ms gained=" + gained + "ms from " + nitz);
@@ -1494,8 +1496,7 @@
private boolean getAutoTime() {
try {
- return Settings.System.getInt(phone.getContext().getContentResolver(),
- Settings.System.AUTO_TIME) > 0;
+ return Settings.System.getInt(cr, Settings.System.AUTO_TIME) > 0;
} catch (SettingNotFoundException snfe) {
return true;
}
@@ -1534,8 +1535,7 @@
}
private void revertToNitz() {
- if (Settings.System.getInt(phone.getContext().getContentResolver(),
- Settings.System.AUTO_TIME, 0) == 0) {
+ if (Settings.System.getInt(cr, Settings.System.AUTO_TIME, 0) == 0) {
return;
}
Log.d(LOG_TAG, "Reverting to NITZ: tz='" + mSavedTimeZone
