Support NB-IOT NTN modem states (d526789d) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/satellite/DatagramController.java

+40 −4

Original line number	Diff line number	Diff line
		@@ -16,6 +16,9 @@

		package com.android.internal.telephony.satellite;

		import static android.telephony.satellite.SatelliteManager.SATELLITE_MODEM_STATE_CONNECTED;
		import static android.telephony.satellite.SatelliteManager.SATELLITE_MODEM_STATE_DATAGRAM_TRANSFERRING;

		import android.annotation.NonNull;
		import android.content.Context;
		import android.os.Build;
		@@ -46,6 +49,8 @@ public class DatagramController {
		public static final long MAX_DATAGRAM_ID = (long) Math.pow(2, 16);
		public static final int ROUNDING_UNIT = 10;
		public static final long SATELLITE_ALIGN_TIMEOUT = TimeUnit.SECONDS.toMillis(30);
		public static final long DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMEOUT =
		TimeUnit.SECONDS.toMillis(60);
		private static final String ALLOW_MOCK_MODEM_PROPERTY = "persist.radio.allow_mock_modem";
		private static final boolean DEBUG = !"user".equals(Build.TYPE);

		@@ -74,6 +79,10 @@ public class DatagramController {
		private SatelliteDatagram mDemoModeDatagram;
		private boolean mIsDemoMode = false;
		private long mAlignTimeoutDuration = SATELLITE_ALIGN_TIMEOUT;
		private long mDatagramWaitTimeForConnectedState = DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMEOUT;
		@GuardedBy("mLock")
		@SatelliteManager.SatelliteModemState
		private int mSatelltieModemState = SatelliteManager.SATELLITE_MODEM_STATE_UNKNOWN;

		/**
		* @return The singleton instance of DatagramController.
		@@ -267,6 +276,9 @@ public class DatagramController {
		* @param state Current satellite modem state.
		*/
		public void onSatelliteModemStateChanged(@SatelliteManager.SatelliteModemState int state) {
		synchronized (mLock) {
		mSatelltieModemState = state;
		}
		mDatagramDispatcher.onSatelliteModemStateChanged(state);
		mDatagramReceiver.onSatelliteModemStateChanged(state);
		}
		@@ -284,17 +296,35 @@ public class DatagramController {
		}
		}

		/**
		* Check if Telephony needs to wait for the modem satellite connected to a satellite network
		* before transferring datagrams via satellite.
		*/
		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
		public boolean needsWaitingForSatelliteConnected() {
		synchronized (mLock) {
		if (SatelliteController.getInstance().isSatelliteAttachRequired()
		&& mSatelltieModemState != SATELLITE_MODEM_STATE_CONNECTED
		&& mSatelltieModemState != SATELLITE_MODEM_STATE_DATAGRAM_TRANSFERRING) {
		return true;
		}
		return false;
		}
		}

		public boolean isSendingInIdleState() {
		synchronized (mLock) {
		return mSendDatagramTransferState ==
		SatelliteManager.SATELLITE_DATAGRAM_TRANSFER_STATE_IDLE;
		return (mSendDatagramTransferState
		== SatelliteManager.SATELLITE_DATAGRAM_TRANSFER_STATE_IDLE)
		&& (mDatagramDispatcher.getPendingDatagramCount() == 0);
		}
		}

		public boolean isPollingInIdleState() {
		synchronized (mLock) {
		return mReceiveDatagramTransferState ==
		SatelliteManager.SATELLITE_DATAGRAM_TRANSFER_STATE_IDLE;
		return (mReceiveDatagramTransferState
		== SatelliteManager.SATELLITE_DATAGRAM_TRANSFER_STATE_IDLE)
		&& !mDatagramReceiver.isPollingPending();
		}
		}

		@@ -336,6 +366,11 @@ public class DatagramController {
		return mAlignTimeoutDuration;
		}

		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
		public long getDatagramWaitTimeForConnectedState() {
		return mDatagramWaitTimeForConnectedState;
		}

		/**
		* This API can be used by only CTS to update the timeout duration in milliseconds whether
		* the device is aligned with the satellite for demo mode
		@@ -351,6 +386,7 @@ public class DatagramController {

		logd("setSatelliteDeviceAlignedTimeoutDuration: timeoutMillis=" + timeoutMillis);
		mAlignTimeoutDuration = timeoutMillis;
		mDatagramWaitTimeForConnectedState = timeoutMillis;
		return true;
		}

src/java/com/android/internal/telephony/satellite/DatagramDispatcher.java

+53 −5

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

		package com.android.internal.telephony.satellite;

		import static android.telephony.satellite.SatelliteManager.SATELLITE_MODEM_STATE_CONNECTED;

		import static com.android.internal.telephony.satellite.DatagramController.ROUNDING_UNIT;

		import android.annotation.NonNull;
		@@ -51,6 +53,7 @@ public class DatagramDispatcher extends Handler {
		private static final int CMD_SEND_SATELLITE_DATAGRAM = 1;
		private static final int EVENT_SEND_SATELLITE_DATAGRAM_DONE = 2;
		private static final int EVENT_WAIT_FOR_DEVICE_ALIGNMENT_IN_DEMO_MODE_TIMED_OUT = 3;
		private static final int EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT = 4;

		@NonNull private static DatagramDispatcher sInstance;
		@NonNull private final Context mContext;
		@@ -308,6 +311,10 @@ public class DatagramDispatcher extends Handler {
		break;
		}

		case EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT:
		handleEventDatagramWaitForConnectedStateTimedOut();
		break;

		default:
		logw("DatagramDispatcherHandler: unexpected message code: " + msg.what);
		break;
		@@ -350,8 +357,13 @@ public class DatagramDispatcher extends Handler {
		mPendingNonEmergencyDatagramsMap.put(datagramId, datagramArgs);
		}

		// Modem can be busy receiving datagrams, so send datagram only when modem is not busy.
		if (!mSendingDatagramInProgress && mDatagramController.isPollingInIdleState()) {
		if (mDatagramController.needsWaitingForSatelliteConnected()) {
		logd("sendSatelliteDatagram: wait for satellite connected");
		SatelliteSessionController.getInstance().onSatelliteDatagramsTransferRequested();
		startDatagramWaitForConnectedStateTimer();
		} else if (!mSendingDatagramInProgress && mDatagramController.isPollingInIdleState()) {
		// Modem can be busy receiving datagrams, so send datagram only when modem is
		// not busy.
		mSendingDatagramInProgress = true;
		datagramArgs.setDatagramStartTime();
		mDatagramController.updateSendStatus(subId,
		@@ -525,10 +537,11 @@ public class DatagramDispatcher extends Handler {
		* Return pending datagram count
		* @return pending datagram count
		*/
		@GuardedBy("mLock")
		private int getPendingDatagramCount() {
		public int getPendingDatagramCount() {
		synchronized (mLock) {
		return mPendingEmergencyDatagramsMap.size() + mPendingNonEmergencyDatagramsMap.size();
		}
		}

		/**
		* Posts the specified command to be executed on the main thread and returns immediately.
		@@ -579,6 +592,12 @@ public class DatagramDispatcher extends Handler {
		} else if (state == SatelliteManager.SATELLITE_MODEM_STATE_IDLE) {
		sendPendingDatagrams();
		}

		if (state == SATELLITE_MODEM_STATE_CONNECTED
		&& isDatagramWaitForConnectedStateTimerStarted()) {
		stopDatagramWaitForConnectedStateTimer();
		sendPendingDatagrams();
		}
		}
		}

		@@ -598,11 +617,40 @@ public class DatagramDispatcher extends Handler {
		SatelliteManager.SATELLITE_RESULT_REQUEST_ABORTED);

		stopSatelliteAlignedTimer();
		stopDatagramWaitForConnectedStateTimer();
		mIsDemoMode = false;
		mSendSatelliteDatagramRequest = null;
		mIsAligned = false;
		}

		private void startDatagramWaitForConnectedStateTimer() {
		if (isDatagramWaitForConnectedStateTimerStarted()) {
		logd("DatagramWaitForConnectedStateTimer is already started");
		return;
		}
		sendMessageDelayed(obtainMessage(
		EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT),
		mDatagramController.getDatagramWaitTimeForConnectedState());
		}

		private void stopDatagramWaitForConnectedStateTimer() {
		removeMessages(EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT);
		}

		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PRIVATE)
		public boolean isDatagramWaitForConnectedStateTimerStarted() {
		return hasMessages(EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT);
		}

		private void handleEventDatagramWaitForConnectedStateTimedOut() {
		logw("Timed out to wait for satellite connected before sending datagrams");
		synchronized (mLock) {
		abortSendingPendingDatagrams(SubscriptionManager.DEFAULT_SUBSCRIPTION_ID,
		SatelliteManager.SATELLITE_RESULT_NOT_REACHABLE);
		SatelliteSessionController.getInstance().onDatagramWaitForConnectedStateTimerTimedOut();
		}
		}

		private static void logd(@NonNull String log) {
		Rlog.d(TAG, log);
		}

src/java/com/android/internal/telephony/satellite/DatagramReceiver.java

+116 −11

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

		package com.android.internal.telephony.satellite;

		import static android.telephony.satellite.SatelliteManager.SATELLITE_MODEM_STATE_CONNECTED;

		import static com.android.internal.telephony.satellite.DatagramController.ROUNDING_UNIT;

		import android.annotation.NonNull;
		@@ -65,6 +67,7 @@ public class DatagramReceiver extends Handler {
		private static final int CMD_POLL_PENDING_SATELLITE_DATAGRAMS = 1;
		private static final int EVENT_POLL_PENDING_SATELLITE_DATAGRAMS_DONE = 2;
		private static final int EVENT_WAIT_FOR_DEVICE_ALIGNMENT_IN_DEMO_MODE_TIMED_OUT = 3;
		private static final int EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT = 4;

		/** Key used to read/write satellite datagramId in shared preferences. */
		private static final String SATELLITE_DATAGRAM_ID_KEY = "satellite_datagram_id_key";
		@@ -82,7 +85,10 @@ public class DatagramReceiver extends Handler {
		private boolean mIsDemoMode = false;
		@GuardedBy("mLock")
		private boolean mIsAligned = false;
		private DatagramReceiverHandlerRequest mPollPendingSatelliteDatagramsRequest = null;
		@Nullable
		private DatagramReceiverHandlerRequest mDemoPollPendingSatelliteDatagramsRequest = null;
		@Nullable
		private DatagramReceiverHandlerRequest mPendingPollSatelliteDatagramsRequest = null;
		private final Object mLock = new Object();

		/**
		@@ -497,6 +503,14 @@ public class DatagramReceiver extends Handler {
		handleEventSatelliteAlignedTimeout((DatagramReceiverHandlerRequest) msg.obj);
		break;
		}

		case EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT:
		handleEventDatagramWaitForConnectedStateTimedOut();
		break;

		default:
		logw("DatagramDispatcherHandler: unexpected message code: " + msg.what);
		break;
		}
		}

		@@ -585,10 +599,38 @@ public class DatagramReceiver extends Handler {
		callback.accept(SatelliteManager.SATELLITE_RESULT_MODEM_BUSY);
		return;
		}

		pollPendingSatelliteDatagramsInternal(subId, callback);
		}

		/**
		* Check if DatagramReceiver is waiting for satellite modem connected to a satellite network
		* before pushing down the poll request to modem.
		*/
		public boolean isPollingPending() {
		synchronized (mLock) {
		return (mPendingPollSatelliteDatagramsRequest != null);
		}
		}

		private void handleSatelliteConnectedEvent() {
		synchronized (mLock) {
		if (isDatagramWaitForConnectedStateTimerStarted()) {
		stopDatagramWaitForConnectedStateTimer();
		if (mPendingPollSatelliteDatagramsRequest == null) {
		loge("handleSatelliteConnectedEvent: mPendingPollSatelliteDatagramsRequest is"
		+ " null");
		return;
		}

		Consumer<Integer> callback =
		(Consumer<Integer>) mPendingPollSatelliteDatagramsRequest.argument;
		pollPendingSatelliteDatagramsInternal(
		mPendingPollSatelliteDatagramsRequest.subId, callback);
		mPendingPollSatelliteDatagramsRequest = null;
		}
		}
		}

		private void pollPendingSatelliteDatagramsInternal(int subId,
		@NonNull Consumer<Integer> callback) {
		if (!mDatagramController.isSendingInIdleState()) {
		@@ -598,6 +640,17 @@ public class DatagramReceiver extends Handler {
		return;
		}

		if (mDatagramController.needsWaitingForSatelliteConnected()) {
		logd("pollPendingSatelliteDatagrams: wait for satellite connected");
		synchronized (mLock) {
		mPendingPollSatelliteDatagramsRequest = new DatagramReceiverHandlerRequest(
		callback, SatelliteServiceUtils.getPhone(), subId);
		SatelliteSessionController.getInstance().onSatelliteDatagramsTransferRequested();
		startDatagramWaitForConnectedStateTimer();
		}
		return;
		}

		mDatagramController.updateReceiveStatus(subId,
		SatelliteManager.SATELLITE_DATAGRAM_TRANSFER_STATE_RECEIVING,
		mDatagramController.getReceivePendingCount(),
		@@ -635,6 +688,8 @@ public class DatagramReceiver extends Handler {
		\|\| state == SatelliteManager.SATELLITE_MODEM_STATE_UNAVAILABLE) {
		logd("onSatelliteModemStateChanged: cleaning up resources");
		cleanUpResources();
		} else if (state == SATELLITE_MODEM_STATE_CONNECTED) {
		handleSatelliteConnectedEvent();
		}
		}
		}
		@@ -643,22 +698,31 @@ public class DatagramReceiver extends Handler {
		private void cleanupDemoModeResources() {
		if (isSatelliteAlignedTimerStarted()) {
		stopSatelliteAlignedTimer();
		if (mPollPendingSatelliteDatagramsRequest == null) {
		if (mDemoPollPendingSatelliteDatagramsRequest == null) {
		loge("Satellite aligned timer was started "
		+ "but mPollPendingSatelliteDatagramsRequest is null");
		+ "but mDemoPollPendingSatelliteDatagramsRequest is null");
		} else {
		Consumer<Integer> callback =
		(Consumer<Integer>) mPollPendingSatelliteDatagramsRequest.argument;
		(Consumer<Integer>) mDemoPollPendingSatelliteDatagramsRequest.argument;
		callback.accept(SatelliteManager.SATELLITE_RESULT_REQUEST_ABORTED);
		}
		}
		mIsDemoMode = false;
		mPollPendingSatelliteDatagramsRequest = null;
		mDemoPollPendingSatelliteDatagramsRequest = null;
		mIsAligned = false;
		}

		@GuardedBy("mLock")
		private void cleanUpResources() {
		synchronized (mLock) {
		if (mPendingPollSatelliteDatagramsRequest != null) {
		Consumer<Integer> callback =
		(Consumer<Integer>) mPendingPollSatelliteDatagramsRequest.argument;
		callback.accept(SatelliteManager.SATELLITE_RESULT_REQUEST_ABORTED);
		mPendingPollSatelliteDatagramsRequest = null;
		}
		stopDatagramWaitForConnectedStateTimer();
		}
		if (mDatagramController.isReceivingDatagrams()) {
		mDatagramController.updateReceiveStatus(SubscriptionManager.DEFAULT_SUBSCRIPTION_ID,
		SatelliteManager.SATELLITE_DATAGRAM_TRANSFER_STATE_RECEIVE_FAILED,
		@@ -736,7 +800,7 @@ public class DatagramReceiver extends Handler {
		logd("Satellite aligned timer was already started");
		return;
		}
		mPollPendingSatelliteDatagramsRequest = request;
		mDemoPollPendingSatelliteDatagramsRequest = request;
		sendMessageDelayed(
		obtainMessage(EVENT_WAIT_FOR_DEVICE_ALIGNMENT_IN_DEMO_MODE_TIMED_OUT, request),
		getSatelliteAlignedTimeoutDuration());
		@@ -751,13 +815,14 @@ public class DatagramReceiver extends Handler {
		if (isSatelliteAlignedTimerStarted()) {
		stopSatelliteAlignedTimer();

		if (mPollPendingSatelliteDatagramsRequest == null) {
		loge("handleSatelliteAlignedTimer: mPollPendingSatelliteDatagramsRequest is null");
		if (mDemoPollPendingSatelliteDatagramsRequest == null) {
		loge("handleSatelliteAlignedTimer: mDemoPollPendingSatelliteDatagramsRequest "
		+ "is null");
		} else {
		Message message = obtainMessage(
		EVENT_POLL_PENDING_SATELLITE_DATAGRAMS_DONE,
		mPollPendingSatelliteDatagramsRequest);
		mPollPendingSatelliteDatagramsRequest = null;
		mDemoPollPendingSatelliteDatagramsRequest);
		mDemoPollPendingSatelliteDatagramsRequest = null;
		AsyncResult.forMessage(message, null, null);
		message.sendToTarget();
		}
		@@ -781,6 +846,42 @@ public class DatagramReceiver extends Handler {
		removeMessages(EVENT_WAIT_FOR_DEVICE_ALIGNMENT_IN_DEMO_MODE_TIMED_OUT);
		}

		private void startDatagramWaitForConnectedStateTimer() {
		if (isDatagramWaitForConnectedStateTimerStarted()) {
		logd("DatagramWaitForConnectedStateTimer is already started");
		return;
		}
		sendMessageDelayed(obtainMessage(
		EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT),
		mDatagramController.getDatagramWaitTimeForConnectedState());
		}

		private void stopDatagramWaitForConnectedStateTimer() {
		removeMessages(EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT);
		}

		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PRIVATE)
		public boolean isDatagramWaitForConnectedStateTimerStarted() {
		return hasMessages(EVENT_DATAGRAM_WAIT_FOR_CONNECTED_STATE_TIMED_OUT);
		}

		private void handleEventDatagramWaitForConnectedStateTimedOut() {
		synchronized (mLock) {
		if (mPendingPollSatelliteDatagramsRequest == null) {
		logw("handleEventDatagramWaitForConnectedStateTimedOut: "
		+ "mPendingPollSatelliteDatagramsRequest is null");
		return;
		}

		logw("Timed out to wait for satellite connected before polling datagrams");
		Consumer<Integer> callback =
		(Consumer<Integer>) mPendingPollSatelliteDatagramsRequest.argument;
		callback.accept(SatelliteManager.SATELLITE_RESULT_NOT_REACHABLE);
		mPendingPollSatelliteDatagramsRequest = null;
		SatelliteSessionController.getInstance().onDatagramWaitForConnectedStateTimerTimedOut();
		}
		}

		/**
		* Destroys this DatagramDispatcher. Used for tearing down static resources during testing.
		*/
		@@ -796,4 +897,8 @@ public class DatagramReceiver extends Handler {
		private static void loge(@NonNull String log) {
		Rlog.e(TAG, log);
		}

		private static void logw(@NonNull String log) {
		Rlog.w(TAG, log);
		}
		}

src/java/com/android/internal/telephony/satellite/SatelliteController.java

+39 −3

Original line number	Diff line number	Diff line
		@@ -71,6 +71,7 @@ import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.telephony.CommandsInterface;
		import com.android.internal.telephony.IIntegerConsumer;
		import com.android.internal.telephony.Phone;
		import com.android.internal.telephony.flags.FeatureFlags;
		import com.android.internal.telephony.satellite.metrics.ControllerMetricsStats;
		import com.android.internal.telephony.satellite.metrics.ProvisionMetricsStats;
		import com.android.internal.telephony.satellite.metrics.SessionMetricsStats;
		@@ -242,6 +243,7 @@ public class SatelliteController extends Handler {
		* {@code true} for enabled and {@code false} for disabled. */
		@NonNull private final Map<Integer, Boolean> mIsSatelliteAttachEnabledForCarrierArrayPerSub =
		new HashMap<>();
		@NonNull private final FeatureFlags mFeatureFlags;
		/**
		* @return The singleton instance of SatelliteController.
		*/
		@@ -255,12 +257,13 @@ public class SatelliteController extends Handler {
		/**
		* Create the SatelliteController singleton instance.
		* @param context The Context to use to create the SatelliteController.
		* @param featureFlags The feature flag.
		*/
		public static void make(@NonNull Context context) {
		public static void make(@NonNull Context context, @NonNull FeatureFlags featureFlags) {
		if (sInstance == null) {
		HandlerThread satelliteThread = new HandlerThread(TAG);
		satelliteThread.start();
		sInstance = new SatelliteController(context, satelliteThread.getLooper());
		sInstance = new SatelliteController(context, satelliteThread.getLooper(), featureFlags);
		}
		}

		@@ -270,12 +273,15 @@ public class SatelliteController extends Handler {
		*
		* @param context The Context for the SatelliteController.
		* @param looper The looper for the handler. It does not run on main thread.
		* @param featureFlags The feature flag.
		*/
		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PRIVATE)
		public SatelliteController(@NonNull Context context, @NonNull Looper looper) {
		public SatelliteController(
		@NonNull Context context, @NonNull Looper looper, @NonNull FeatureFlags featureFlags) {
		super(looper);

		mContext = context;
		mFeatureFlags = featureFlags;
		Phone phone = SatelliteServiceUtils.getPhone();
		mCi = phone.mCi;
		// Create the SatelliteModemInterface singleton, which is used to manage connections
		@@ -2128,6 +2134,30 @@ public class SatelliteController extends Handler {
		}
		}

		/**
		* Check whether satellite modem has to attach to a satellite network before sending/receiving
		* datagrams.
		*
		* @return {@code true} if satellite attach is required, {@code false} otherwise.
		*/
		public boolean isSatelliteAttachRequired() {
		if (!mFeatureFlags.oemEnabledSatelliteFlag()) {
		return false;
		}

		synchronized (mSatelliteCapabilitiesLock) {
		if (mSatelliteCapabilities == null) {
		loge("isSatelliteAttachRequired: mSatelliteCapabilities is null");
		return false;
		}
		if (mSatelliteCapabilities.getSupportedRadioTechnologies().contains(
		SatelliteManager.NT_RADIO_TECHNOLOGY_NB_IOT_NTN)) {
		return true;
		}
		return false;
		}
		}

		/**
		* If we have not successfully queried the satellite modem for its satellite service support,
		* we will retry the query one more time. Otherwise, we will return the cached result.
		@@ -2477,6 +2507,12 @@ public class SatelliteController extends Handler {
		}
		mWaitingForSatelliteModemOff = false;
		}
		} else {
		if (mSatelliteSessionController != null) {
		mSatelliteSessionController.onSatelliteModemStateChanged(state);
		} else {
		loge("handleEventSatelliteModemStateChanged: mSatelliteSessionController is null");
		}
		}
		mDatagramController.onSatelliteModemStateChanged(state);
		}

src/java/com/android/internal/telephony/satellite/SatelliteServiceUtils.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -150,6 +150,10 @@ public class SatelliteServiceUtils {
		return SatelliteManager.SATELLITE_MODEM_STATE_OFF;
		case SatelliteModemState.SATELLITE_MODEM_STATE_UNAVAILABLE:
		return SatelliteManager.SATELLITE_MODEM_STATE_UNAVAILABLE;
		case SatelliteModemState.SATELLITE_MODEM_STATE_NOT_CONNECTED:
		return SatelliteManager.SATELLITE_MODEM_STATE_NOT_CONNECTED;
		case SatelliteModemState.SATELLITE_MODEM_STATE_CONNECTED:
		return SatelliteManager.SATELLITE_MODEM_STATE_CONNECTED;
		default:
		loge("Received invalid modem state: " + modemState);
		return SatelliteManager.SATELLITE_MODEM_STATE_UNKNOWN;