Adding SUPL NI Emergency Extension Time

[android-x86/frameworks-base.git] / services / core / java / com / android / server / location / GnssLocationProvider.java

diff --git a/services/core/java/com/android/server/location/GnssLocationProvider.java b/services/core/java/com/android/server/location/GnssLocationProvider.java
index 7580cf4..45374b5 100644 (file)
--- a/services/core/java/com/android/server/location/GnssLocationProvider.java
+++ b/services/core/java/com/android/server/location/GnssLocationProvider.java
@@ -417,6 +417,12 @@ public class GnssLocationProvider implements LocationProviderInterface {
 
     private int mYearOfHardware = 0;
 
+    // Set lower than the current ITAR limit of 600m/s to allow this to trigger even if GPS HAL
+    // stops output right at 600m/s, depriving this of the information of a device that reaches
+    // greater than 600m/s, and higher than the speed of sound to avoid impacting most use cases.
+    private static final float ITAR_SPEED_LIMIT_METERS_PER_SECOND = 400.0F;
+    private boolean mItarSpeedLimitExceeded = false;
+
     private final IGnssStatusProvider mGnssStatusProvider = new IGnssStatusProvider.Stub() {
         @Override
         public void registerGnssStatusCallback(IGnssStatusListener callback) {
@@ -452,8 +458,12 @@ public class GnssLocationProvider implements LocationProviderInterface {
             new ConnectivityManager.NetworkCallback() {
         @Override
         public void onAvailable(Network network) {
-            requestUtcTime();
-            xtraDownloadRequest();
+            if (mInjectNtpTimePending == STATE_PENDING_NETWORK) {
+                requestUtcTime();
+            }
+            if (mDownloadXtraDataPending == STATE_PENDING_NETWORK) {
+                xtraDownloadRequest();
+            }
         }
     };
 
@@ -665,6 +675,17 @@ public class GnssLocationProvider implements LocationProviderInterface {
                 Log.e(TAG, "unable to parse SUPL_ES: " + suplESProperty);
             }
         }
+
+        String emergencyExtensionSecondsString
+                = properties.getProperty("ES_EXTENSION_SEC", "0");
+        try {
+            int emergencyExtensionSeconds =
+                    Integer.parseInt(emergencyExtensionSecondsString);
+            mNIHandler.setEmergencyExtensionSeconds(emergencyExtensionSeconds);
+        } catch (NumberFormatException e) {
+            Log.e(TAG, "unable to parse ES_EXTENSION_SEC: "
+                    + emergencyExtensionSecondsString);
+        }
     }
 
     private void loadPropertiesFromResource(Context context,
@@ -1002,6 +1023,11 @@ public class GnssLocationProvider implements LocationProviderInterface {
     }
 
     private void handleDownloadXtraData() {
+        if (!mSupportsXtra) {
+            // native code reports xtra not supported, don't try
+            Log.d(TAG, "handleDownloadXtraData() called when Xtra not supported");
+            return;
+        }
         if (mDownloadXtraDataPending == STATE_DOWNLOADING) {
             // already downloading data
             return;
@@ -1405,6 +1431,12 @@ public class GnssLocationProvider implements LocationProviderInterface {
             mStarted = true;
             mSingleShot = singleShot;
             mPositionMode = GPS_POSITION_MODE_STANDALONE;
+            // Notify about suppressed output, if speed limit was previously exceeded.
+            // Elsewhere, we check again with every speed output reported.
+            if (mItarSpeedLimitExceeded) {
+                Log.i(TAG, "startNavigating with ITAR limit in place. Output limited  " +
+                        "until slow enough speed reported.");
+            }
 
             boolean agpsEnabled =
                     (Settings.Global.getInt(mContext.getContentResolver(),
@@ -1491,7 +1523,17 @@ public class GnssLocationProvider implements LocationProviderInterface {
      * called from native code to update our position.
      */
     private void reportLocation(int flags, double latitude, double longitude, double altitude,
-            float speed, float bearing, float accuracy, long timestamp) {
+            float speedMetersPerSecond, float bearing, float accuracy, long timestamp) {
+        if ((flags & LOCATION_HAS_SPEED) == LOCATION_HAS_SPEED) {
+            mItarSpeedLimitExceeded = speedMetersPerSecond > ITAR_SPEED_LIMIT_METERS_PER_SECOND;
+        }
+
+        if (mItarSpeedLimitExceeded) {
+            Log.i(TAG, "Hal reported a speed in excess of ITAR limit." +
+                    "  GPS/GNSS Navigation output blocked.");
+            return;  // No output of location allowed
+        }
+
         if (VERBOSE) Log.v(TAG, "reportLocation lat: " + latitude + " long: " + longitude +
                 " timestamp: " + timestamp);
 
@@ -1511,7 +1553,7 @@ public class GnssLocationProvider implements LocationProviderInterface {
                 mLocation.removeAltitude();
             }
             if ((flags & LOCATION_HAS_SPEED) == LOCATION_HAS_SPEED) {
-                mLocation.setSpeed(speed);
+                mLocation.setSpeed(speedMetersPerSecond);
             } else {
                 mLocation.removeSpeed();
             }
@@ -1695,23 +1737,29 @@ public class GnssLocationProvider implements LocationProviderInterface {
      * called from native code to report NMEA data received
      */
     private void reportNmea(long timestamp) {
-        int length = native_read_nmea(mNmeaBuffer, mNmeaBuffer.length);
-        String nmea = new String(mNmeaBuffer, 0 /* offset */, length);
-        mListenerHelper.onNmeaReceived(timestamp, nmea);
+        if (!mItarSpeedLimitExceeded) {
+            int length = native_read_nmea(mNmeaBuffer, mNmeaBuffer.length);
+            String nmea = new String(mNmeaBuffer, 0 /* offset */, length);
+            mListenerHelper.onNmeaReceived(timestamp, nmea);
+        }
     }
 
     /**
      * called from native code - Gps measurements callback
      */
     private void reportMeasurementData(GnssMeasurementsEvent event) {
-        mGnssMeasurementsProvider.onMeasurementsAvailable(event);
+        if (!mItarSpeedLimitExceeded) {
+            mGnssMeasurementsProvider.onMeasurementsAvailable(event);
+        }
     }
 
     /**
      * called from native code - GPS navigation message callback
      */
     private void reportNavigationMessage(GnssNavigationMessage event) {
-        mGnssNavigationMessageProvider.onNavigationMessageAvailable(event);
+        if (!mItarSpeedLimitExceeded) {
+            mGnssNavigationMessageProvider.onNavigationMessageAvailable(event);
+        }
     }
 
     /**
@@ -2125,9 +2173,7 @@ public class GnssLocationProvider implements LocationProviderInterface {
                     handleInjectNtpTime();
                     break;
                 case DOWNLOAD_XTRA_DATA:
-                    if (mSupportsXtra) {
-                        handleDownloadXtraData();
-                    }
+                    handleDownloadXtraData();
                     break;
                 case INJECT_NTP_TIME_FINISHED:
                     mInjectNtpTimePending = STATE_IDLE;