Merge "Support periodic PSDS download"

services/core/java/com/android/server/location/gnss/GnssConfiguration.java

@@ -71,7 +71,8 @@ public class GnssConfiguration {
     private static final String CONFIG_GPS_LOCK = "GPS_LOCK";
     private static final String CONFIG_ES_EXTENSION_SEC = "ES_EXTENSION_SEC";
     public static final String CONFIG_NFW_PROXY_APPS = "NFW_PROXY_APPS";
-
+    public static final String CONFIG_ENABLE_PSDS_PERIODIC_DOWNLOAD =
+            "ENABLE_PSDS_PERIODIC_DOWNLOAD";
     // Limit on NI emergency mode time extension after emergency sessions ends
     private static final int MAX_EMERGENCY_MODE_EXTENSION_SECONDS = 300;  // 5 minute maximum
 
@@ -193,6 +194,13 @@ public class GnssConfiguration {
         return Arrays.asList(proxyAppsArray);
     }
 
+    /**
+     * Returns true if PSDS periodic download is enabled, false otherwise.
+     */
+    boolean isPsdsPeriodicDownloadEnabled() {
+        return getBooleanConfig(CONFIG_ENABLE_PSDS_PERIODIC_DOWNLOAD, false);
+    }
+
     /**
      * Updates the GNSS HAL satellite denylist.
      */
@@ -374,6 +382,14 @@ public class GnssConfiguration {
         }
     }
 
+    private boolean getBooleanConfig(String configParameter, boolean defaultValue) {
+        String valueString = mProperties.getProperty(configParameter);
+        if (TextUtils.isEmpty(valueString)) {
+            return defaultValue;
+        }
+        return Boolean.parseBoolean(valueString);
+    }
+
     private static boolean isConfigEsExtensionSecSupported(
             HalInterfaceVersion gnssConfiguartionIfaceVersion) {
         // ES_EXTENSION_SEC is introduced in @2.0::IGnssConfiguration.hal

services/core/java/com/android/server/location/gnss/GnssLocationProvider.java

@@ -16,6 +16,8 @@
 
 package com.android.server.location.gnss;
 
+import static android.content.pm.PackageManager.FEATURE_WATCH;
+
 import static android.app.AlarmManager.ELAPSED_REALTIME_WAKEUP;
 import static android.location.provider.ProviderProperties.ACCURACY_FINE;
 import static android.location.provider.ProviderProperties.POWER_USAGE_HIGH;
@@ -55,6 +57,7 @@ import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.pm.PackageManager;
 import android.database.ContentObserver;
 import android.location.GnssCapabilities;
 import android.location.GnssStatus;
@@ -142,6 +145,9 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
     private static final int AGPS_SUPL_MODE_MSA = 0x02;
     private static final int AGPS_SUPL_MODE_MSB = 0x01;
 
+    // PSDS stands for Predicted Satellite Data Service
+    private static final int DOWNLOAD_PSDS_DATA = 6;
+
     // TCP/IP constants.
     // Valid TCP/UDP port range is (0, 65535].
     private static final int TCP_MIN_PORT = 0;
@@ -651,6 +657,14 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
                         mPsdsBackOff.reset();
                     }
                 });
+                PackageManager pm = mContext.getPackageManager();
+                if (pm != null && pm.hasSystemFeature(FEATURE_WATCH)
+                        && mGnssConfiguration.isPsdsPeriodicDownloadEnabled()) {
+                    if (DEBUG) Log.d(TAG, "scheduling next Psds download");
+                    mHandler.removeMessages(DOWNLOAD_PSDS_DATA);
+                    mHandler.sendEmptyMessageDelayed(DOWNLOAD_PSDS_DATA,
+                            GnssPsdsDownloader.PSDS_INTERVAL);
+                }
             } else {
                 // Try download PSDS data again later according to backoff time.
                 // Since this is delayed and not urgent, we do not hold a wake lock here.

services/core/java/com/android/server/location/gnss/GnssPsdsDownloader.java

@@ -38,6 +38,10 @@ import java.util.concurrent.TimeUnit;
  */
 class GnssPsdsDownloader {
 
+    // how often to request PSDS download, in milliseconds
+    // current setting 24 hours
+    static final long PSDS_INTERVAL = 24 * 60 * 60 * 1000;
+
     private static final String TAG = "GnssPsdsDownloader";
     private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
     private static final long MAXIMUM_CONTENT_LENGTH_BYTES = 1000000;  // 1MB.

services/core/java/com/android/server/location/gnss/gps_debug.conf

@@ -50,3 +50,12 @@
 # Set bit 0x2 if NI GPS functionalities are to be locked
 # default - non is locked for backward compatibility
 #GPS_LOCK = 0
+
+################################
+##### PSDS download settings #####
+################################
+# For wear devices only.
+# Enable periodic PSDS download once a day.
+# true: Enable periodic PSDS download
+# false: Disable periodic PSDS download
+#ENABLE_PSDS_PERIODIC_DOWNLOAD=false