Merge change 1095 into donut (fd445d35) · Commits · e / os / android_frameworks_base

location/java/com/android/internal/location/GpsLocationProvider.java

+47 −13

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@

		package com.android.internal.location;

		import android.app.AlarmManager;
		import android.app.PendingIntent;
		import android.content.BroadcastReceiver;
		import android.content.Context;
		import android.content.Intent;
		@@ -60,6 +62,9 @@ public class GpsLocationProvider extends ILocationProvider.Stub {

		private static final String TAG = "GpsLocationProvider";

		private static final boolean DEBUG = true;
		private static final boolean VERBOSE = false;

		/**
		* Broadcast intent action indicating that the GPS has either been
		* enabled or disabled. An intent extra provides this state as a boolean,
		@@ -152,6 +157,9 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		// turn off GPS fix icon if we haven't received a fix in 10 seconds
		private static final long RECENT_FIX_TIMEOUT = 10 * 1000;

		// number of fixes to receive before disabling GPS
		private static final int MIN_FIX_COUNT = 10;

		// true if we are enabled
		private boolean mEnabled;

		@@ -164,6 +172,9 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		// requested frequency of fixes, in seconds
		private int mFixInterval = 1;

		// number of fixes we have received since we started navigating
		private int mFixCount;

		private int mPositionMode = GPS_POSITION_MODE_STANDALONE;

		// true if we started navigation
		@@ -196,6 +207,11 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		private int mSuplDataConnectionState;
		private final ConnectivityManager mConnMgr;

		// Alarms
		private final static String ALARM_WAKEUP = "com.android.internal.location.ALARM_WAKEUP";
		private final AlarmManager mAlarmManager;
		private final PendingIntent mWakeupIntent;

		private final IBatteryStats mBatteryStats;
		private final SparseIntArray mClientUids = new SparseIntArray();

		@@ -257,11 +273,14 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		return mGpsStatusProvider;
		}

		private class TelephonyBroadcastReceiver extends BroadcastReceiver {
		private final BroadcastReceiver mBroadcastReciever = new BroadcastReceiver() {
		@Override public void onReceive(Context context, Intent intent) {
		String action = intent.getAction();

		if (action.equals(TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED)) {
		if (action.equals(ALARM_WAKEUP)) {
		if (DEBUG) Log.d(TAG, "ALARM_WAKEUP");
		startNavigating();
		} else if (action.equals(TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED)) {
		String state = intent.getStringExtra(Phone.STATE_KEY);
		String apnName = intent.getStringExtra(Phone.DATA_APN_KEY);
		String reason = intent.getStringExtra(Phone.STATE_CHANGE_REASON_KEY);
		@@ -278,7 +297,7 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		}
		}
		}
		}
		};

		public static boolean isSupported() {
		return native_is_supported();
		@@ -288,10 +307,13 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		mContext = context;
		mLocationManager = locationManager;

		TelephonyBroadcastReceiver receiver = new TelephonyBroadcastReceiver();
		mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE);
		mWakeupIntent = PendingIntent.getBroadcast(mContext, 0, new Intent(ALARM_WAKEUP), 0);

		IntentFilter intentFilter = new IntentFilter();
		intentFilter.addAction(ALARM_WAKEUP);
		intentFilter.addAction(TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED);
		context.registerReceiver(receiver, intentFilter);
		context.registerReceiver(mBroadcastReciever, intentFilter);

		mConnMgr = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

		@@ -512,11 +534,11 @@ public class GpsLocationProvider extends ILocationProvider.Stub {

		public void enableLocationTracking(boolean enable) {
		if (enable) {
		mFixRequestTime = System.currentTimeMillis();
		mTTFF = 0;
		mLastFixTime = 0;
		startNavigating();
		} else {
		mAlarmManager.cancel(mWakeupIntent);
		stopNavigating();
		}
		}
		@@ -622,7 +644,7 @@ public class GpsLocationProvider extends ILocationProvider.Stub {

		public void startNavigating() {
		if (!mStarted) {
		if (Config.LOGV) Log.v(TAG, "startNavigating");
		if (DEBUG) Log.d(TAG, "startNavigating");
		mStarted = true;
		if (!native_start(mPositionMode, false, mFixInterval)) {
		mStarted = false;
		@@ -631,11 +653,13 @@ public class GpsLocationProvider extends ILocationProvider.Stub {

		// reset SV count to zero
		updateStatus(LocationProvider.TEMPORARILY_UNAVAILABLE, 0);
		mFixCount = 0;
		mFixRequestTime = System.currentTimeMillis();
		}
		}

		public void stopNavigating() {
		if (Config.LOGV) Log.v(TAG, "stopNavigating");
		if (DEBUG) Log.d(TAG, "stopNavigating");
		if (mStarted) {
		mStarted = false;
		native_stop();
		@@ -653,7 +677,7 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		*/
		private void reportLocation(int flags, double latitude, double longitude, double altitude,
		float speed, float bearing, float accuracy, long timestamp) {
		if (Config.LOGV) Log.v(TAG, "reportLocation lat: " + latitude + " long: " + longitude +
		if (VERBOSE) Log.v(TAG, "reportLocation lat: " + latitude + " long: " + longitude +
		" timestamp: " + timestamp);

		mLastFixTime = System.currentTimeMillis();
		@@ -721,13 +745,23 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		mContext.sendBroadcast(intent);
		updateStatus(LocationProvider.AVAILABLE, mSvCount);
		}

		if (mFixCount++ >= MIN_FIX_COUNT && mFixInterval > 1) {
		if (DEBUG) Log.d(TAG, "exceeded MIN_FIX_COUNT");
		stopNavigating();
		mFixCount = 0;
		mAlarmManager.cancel(mWakeupIntent);
		long now = SystemClock.elapsedRealtime();
		mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
		SystemClock.elapsedRealtime() + mFixInterval * 1000, mWakeupIntent);
		}
		}

		/**
		* called from native code to update our status
		*/
		private void reportStatus(int status) {
		if (Config.LOGV) Log.v(TAG, "reportStatus status: " + status);
		if (VERBOSE) Log.v(TAG, "reportStatus status: " + status);

		boolean wasNavigating = mNavigating;
		mNavigating = (status == GPS_STATUS_SESSION_BEGIN);
		@@ -797,12 +831,12 @@ public class GpsLocationProvider extends ILocationProvider.Stub {
		}
		}

		if (Config.LOGD) {
		if (Config.LOGV) Log.v(TAG, "SV count: " + svCount +
		if (VERBOSE) {
		Log.v(TAG, "SV count: " + svCount +
		" ephemerisMask: " + Integer.toHexString(mSvMasks[EPHEMERIS_MASK]) +
		" almanacMask: " + Integer.toHexString(mSvMasks[ALMANAC_MASK]));
		for (int i = 0; i < svCount; i++) {
		if (Config.LOGV) Log.v(TAG, "sv: " + mSvs[i] +
		Log.v(TAG, "sv: " + mSvs[i] +
		" snr: " + (float)mSnrs[i]/10 +
		" elev: " + mSvElevations[i] +
		" azimuth: " + mSvAzimuths[i] +