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Commit b2fca14b authored by Shinru Han's avatar Shinru Han Committed by [A[A
Browse files

Support periodic PSDS download 

Support periodic PSDS download once a day.
This feature can be enabled by property ENABLE_PSDS_PERIODIC_DOWNLOAD.

Bug: 194871688
Test: PSDS data can be downloaded once a day.
Change-Id: Iea103f9e3d2b61215bb08f431786e1d14789faf9
parent e299f5d2

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

+17 −1
Original line number Diff line number Diff line
@@ -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

+14 −0
Original line number Diff line number Diff line
@@ -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

+4 −0
Original line number Diff line number Diff line
@@ -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

+9 −0
Original line number Diff line number Diff line
@@ -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