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Merge change 1095 into donut

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* changes:
  gps: Move GPS scheduling from libgps to GpsLocationProvider.
This commit is contained in:
Android (Google) Code Review
2009-05-06 11:58:27 -07:00
parent f3af740bdf 29c84340a1
commit fd445d3510
1 changed files with 47 additions and 13 deletions
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60
location/java/com/android/internal/location/GpsLocationProvider.java
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@@ -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;
@@ -59,6 +61,9 @@ import java.util.Properties;
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
@@ -151,6 +156,9 @@ 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] +