NetworkController.java revision c198bb1db8c16789a815b5fa2b393e113047bd47 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.systemui.statusbar.policy;
18
19import java.io.FileDescriptor;
20import java.io.PrintWriter;
21import java.util.ArrayList;
22import java.util.List;
23
24import android.content.BroadcastReceiver;
25import android.content.Context;
26import android.content.Intent;
27import android.content.IntentFilter;
28import android.content.res.Resources;
29import android.net.ConnectivityManager;
30import android.net.NetworkInfo;
31import android.net.wifi.SupplicantState;
32import android.net.wifi.WifiConfiguration;
33import android.net.wifi.WifiInfo;
34import android.net.wifi.WifiManager;
35import android.os.Binder;
36import android.os.RemoteException;
37import android.provider.Settings;
38import android.provider.Telephony;
39import android.telephony.PhoneStateListener;
40import android.telephony.ServiceState;
41import android.telephony.SignalStrength;
42import android.telephony.TelephonyManager;
43import android.util.Slog;
44import android.view.View;
45import android.widget.ImageView;
46import android.widget.TextView;
47
48import com.android.internal.app.IBatteryStats;
49import com.android.internal.telephony.IccCard;
50import com.android.internal.telephony.TelephonyIntents;
51import com.android.internal.telephony.cdma.EriInfo;
52import com.android.server.am.BatteryStatsService;
53
54import com.android.systemui.R;
55
56public class NetworkController extends BroadcastReceiver {
57    // debug
58    static final String TAG = "StatusBar.NetworkController";
59    static final boolean DEBUG = false;
60
61    // telephony
62    boolean mHspaDataDistinguishable;
63    final TelephonyManager mPhone;
64    boolean mDataConnected;
65    IccCard.State mSimState = IccCard.State.READY;
66    int mPhoneState = TelephonyManager.CALL_STATE_IDLE;
67    int mDataNetType = TelephonyManager.NETWORK_TYPE_UNKNOWN;
68    int mDataState = TelephonyManager.DATA_DISCONNECTED;
69    int mDataActivity = TelephonyManager.DATA_ACTIVITY_NONE;
70    ServiceState mServiceState;
71    SignalStrength mSignalStrength;
72    int[] mDataIconList = TelephonyIcons.DATA_G[0];
73    String mNetworkName;
74    String mNetworkNameDefault;
75    String mNetworkNameSeparator;
76    int mPhoneSignalIconId;
77    int mDataDirectionIconId;
78    int mDataSignalIconId;
79    int mDataActiveSignalIconId;
80    int mDataTypeIconId;
81    boolean mDataActive;
82
83    // wifi
84    final WifiManager mWifiManager;
85    boolean mWifiEnabled, mWifiConnected;
86    int mWifiLevel;
87    String mWifiSsid;
88    int mWifiIconId;
89
90    // bluetooth
91    private boolean mBluetoothTethered = false;
92    private int mBluetoothTetherIconId =
93        com.android.internal.R.drawable.stat_sys_tether_bluetooth;
94
95    // data connectivity (regardless of state, can we access the internet?)
96    // state of inet connection - 0 not connected, 100 connected
97    private int mInetCondition = 0;
98    private static final int INET_CONDITION_THRESHOLD = 50;
99
100    // our ui
101    Context mContext;
102    ArrayList<ImageView> mPhoneSignalIconViews = new ArrayList<ImageView>();
103    ArrayList<ImageView> mDataDirectionIconViews = new ArrayList<ImageView>();
104    ArrayList<ImageView> mWifiIconViews = new ArrayList<ImageView>();
105    ArrayList<ImageView> mCombinedSignalIconViews = new ArrayList<ImageView>();
106    ArrayList<ImageView> mDataTypeIconViews = new ArrayList<ImageView>();
107    ArrayList<TextView> mLabelViews = new ArrayList<TextView>();
108    int mLastPhoneSignalIconId = -1;
109    int mLastDataDirectionIconId = -1;
110    int mLastWifiIconId = -1;
111    int mLastCombinedSignalIconId = -1;
112    int mLastDataTypeIconId = -1;
113    String mLastLabel = "";
114
115    // yuck -- stop doing this here and put it in the framework
116    IBatteryStats mBatteryStats;
117
118    /**
119     * Construct this controller object and register for updates.
120     */
121    public NetworkController(Context context) {
122        mContext = context;
123
124        // telephony
125        mPhone = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
126        mPhone.listen(mPhoneStateListener,
127                          PhoneStateListener.LISTEN_SERVICE_STATE
128                        | PhoneStateListener.LISTEN_SIGNAL_STRENGTHS
129                        | PhoneStateListener.LISTEN_CALL_STATE
130                        | PhoneStateListener.LISTEN_DATA_CONNECTION_STATE
131                        | PhoneStateListener.LISTEN_DATA_ACTIVITY);
132        mHspaDataDistinguishable = mContext.getResources().getBoolean(
133                R.bool.config_hspa_data_distinguishable);
134        mNetworkNameSeparator = mContext.getString(R.string.status_bar_network_name_separator);
135        mNetworkNameDefault = mContext.getString(
136                com.android.internal.R.string.lockscreen_carrier_default);
137        mNetworkName = mNetworkNameDefault;
138
139        // wifi
140        mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
141
142        // broadcasts
143        IntentFilter filter = new IntentFilter();
144        filter.addAction(WifiManager.RSSI_CHANGED_ACTION);
145        filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
146        filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
147        filter.addAction(TelephonyIntents.ACTION_SIM_STATE_CHANGED);
148        filter.addAction(Telephony.Intents.SPN_STRINGS_UPDATED_ACTION);
149        filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
150        filter.addAction(ConnectivityManager.INET_CONDITION_ACTION);
151        filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
152        context.registerReceiver(this, filter);
153
154        // yuck
155        mBatteryStats = BatteryStatsService.getService();
156    }
157
158    public void addPhoneSignalIconView(ImageView v) {
159        mPhoneSignalIconViews.add(v);
160    }
161
162    public void addDataDirectionIconView(ImageView v) {
163        mDataDirectionIconViews.add(v);
164    }
165
166    public void addWifiIconView(ImageView v) {
167        mWifiIconViews.add(v);
168    }
169
170    public void addCombinedSignalIconView(ImageView v) {
171        mCombinedSignalIconViews.add(v);
172    }
173
174    public void addDataTypeIconView(ImageView v) {
175        mDataTypeIconViews.add(v);
176    }
177
178    public void addLabelView(TextView v) {
179        mLabelViews.add(v);
180    }
181
182    public void onReceive(Context context, Intent intent) {
183        final String action = intent.getAction();
184        if (action.equals(WifiManager.RSSI_CHANGED_ACTION)
185                || action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)
186                || action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {
187            updateWifiState(intent);
188            refreshViews();
189        } else if (action.equals(TelephonyIntents.ACTION_SIM_STATE_CHANGED)) {
190            updateSimState(intent);
191            updateDataIcon();
192            refreshViews();
193        } else if (action.equals(Telephony.Intents.SPN_STRINGS_UPDATED_ACTION)) {
194            updateNetworkName(intent.getBooleanExtra(Telephony.Intents.EXTRA_SHOW_SPN, false),
195                        intent.getStringExtra(Telephony.Intents.EXTRA_SPN),
196                        intent.getBooleanExtra(Telephony.Intents.EXTRA_SHOW_PLMN, false),
197                        intent.getStringExtra(Telephony.Intents.EXTRA_PLMN));
198            refreshViews();
199        } else if (action.equals(ConnectivityManager.CONNECTIVITY_ACTION) ||
200                 action.equals(ConnectivityManager.INET_CONDITION_ACTION)) {
201            updateConnectivity(intent);
202            refreshViews();
203        } else if (action.equals(Intent.ACTION_CONFIGURATION_CHANGED)) {
204            refreshViews();
205        }
206    }
207
208
209    // ===== Telephony ==============================================================
210
211    PhoneStateListener mPhoneStateListener = new PhoneStateListener() {
212        @Override
213        public void onSignalStrengthsChanged(SignalStrength signalStrength) {
214            if (DEBUG) {
215                Slog.d(TAG, "onSignalStrengthsChanged signalStrength=" + signalStrength);
216            }
217            mSignalStrength = signalStrength;
218            updateTelephonySignalStrength();
219            refreshViews();
220        }
221
222        @Override
223        public void onServiceStateChanged(ServiceState state) {
224            if (DEBUG) {
225                Slog.d(TAG, "onServiceStateChanged state=" + state.getState());
226            }
227            mServiceState = state;
228            updateTelephonySignalStrength();
229            updateDataIcon();
230            refreshViews();
231        }
232
233        @Override
234        public void onCallStateChanged(int state, String incomingNumber) {
235            if (DEBUG) {
236                Slog.d(TAG, "onCallStateChanged state=" + state);
237            }
238            // In cdma, if a voice call is made, RSSI should switch to 1x.
239            if (isCdma()) {
240                updateTelephonySignalStrength();
241                refreshViews();
242            }
243        }
244
245        @Override
246        public void onDataConnectionStateChanged(int state, int networkType) {
247            if (DEBUG) {
248                Slog.d(TAG, "onDataConnectionStateChanged: state=" + state
249                        + " type=" + networkType);
250            }
251            mDataState = state;
252            mDataNetType = networkType;
253            updateDataNetType();
254            updateDataIcon();
255            refreshViews();
256        }
257
258        @Override
259        public void onDataActivity(int direction) {
260            if (DEBUG) {
261                Slog.d(TAG, "onDataActivity: direction=" + direction);
262            }
263            mDataActivity = direction;
264            updateDataIcon();
265            refreshViews();
266        }
267    };
268
269    private final void updateSimState(Intent intent) {
270        String stateExtra = intent.getStringExtra(IccCard.INTENT_KEY_ICC_STATE);
271        if (IccCard.INTENT_VALUE_ICC_ABSENT.equals(stateExtra)) {
272            mSimState = IccCard.State.ABSENT;
273        }
274        else if (IccCard.INTENT_VALUE_ICC_READY.equals(stateExtra)) {
275            mSimState = IccCard.State.READY;
276        }
277        else if (IccCard.INTENT_VALUE_ICC_LOCKED.equals(stateExtra)) {
278            final String lockedReason = intent.getStringExtra(IccCard.INTENT_KEY_LOCKED_REASON);
279            if (IccCard.INTENT_VALUE_LOCKED_ON_PIN.equals(lockedReason)) {
280                mSimState = IccCard.State.PIN_REQUIRED;
281            }
282            else if (IccCard.INTENT_VALUE_LOCKED_ON_PUK.equals(lockedReason)) {
283                mSimState = IccCard.State.PUK_REQUIRED;
284            }
285            else {
286                mSimState = IccCard.State.NETWORK_LOCKED;
287            }
288        } else {
289            mSimState = IccCard.State.UNKNOWN;
290        }
291    }
292
293    private boolean isCdma() {
294        return (mSignalStrength != null) && !mSignalStrength.isGsm();
295    }
296
297    private boolean isEvdo() {
298        return ((mServiceState != null)
299             && ((mServiceState.getRadioTechnology() == ServiceState.RADIO_TECHNOLOGY_EVDO_0)
300                 || (mServiceState.getRadioTechnology() == ServiceState.RADIO_TECHNOLOGY_EVDO_A)
301                 || (mServiceState.getRadioTechnology() == ServiceState.RADIO_TECHNOLOGY_EVDO_B)));
302    }
303
304    private boolean hasService() {
305        if (mServiceState != null) {
306            switch (mServiceState.getState()) {
307                case ServiceState.STATE_OUT_OF_SERVICE:
308                case ServiceState.STATE_POWER_OFF:
309                    return false;
310                default:
311                    return true;
312            }
313        } else {
314            return false;
315        }
316    }
317
318    private int getCdmaLevel() {
319        if (mSignalStrength == null) return 0;
320        final int cdmaDbm = mSignalStrength.getCdmaDbm();
321        final int cdmaEcio = mSignalStrength.getCdmaEcio();
322        int levelDbm = 0;
323        int levelEcio = 0;
324
325        if (cdmaDbm >= -75) levelDbm = 4;
326        else if (cdmaDbm >= -85) levelDbm = 3;
327        else if (cdmaDbm >= -95) levelDbm = 2;
328        else if (cdmaDbm >= -100) levelDbm = 1;
329        else levelDbm = 0;
330
331        // Ec/Io are in dB*10
332        if (cdmaEcio >= -90) levelEcio = 4;
333        else if (cdmaEcio >= -110) levelEcio = 3;
334        else if (cdmaEcio >= -130) levelEcio = 2;
335        else if (cdmaEcio >= -150) levelEcio = 1;
336        else levelEcio = 0;
337
338        return (levelDbm < levelEcio) ? levelDbm : levelEcio;
339    }
340
341    private int getEvdoLevel() {
342        if (mSignalStrength == null) return 0;
343        int evdoDbm = mSignalStrength.getEvdoDbm();
344        int evdoSnr = mSignalStrength.getEvdoSnr();
345        int levelEvdoDbm = 0;
346        int levelEvdoSnr = 0;
347
348        if (evdoDbm >= -65) levelEvdoDbm = 4;
349        else if (evdoDbm >= -75) levelEvdoDbm = 3;
350        else if (evdoDbm >= -90) levelEvdoDbm = 2;
351        else if (evdoDbm >= -105) levelEvdoDbm = 1;
352        else levelEvdoDbm = 0;
353
354        if (evdoSnr >= 7) levelEvdoSnr = 4;
355        else if (evdoSnr >= 5) levelEvdoSnr = 3;
356        else if (evdoSnr >= 3) levelEvdoSnr = 2;
357        else if (evdoSnr >= 1) levelEvdoSnr = 1;
358        else levelEvdoSnr = 0;
359
360        return (levelEvdoDbm < levelEvdoSnr) ? levelEvdoDbm : levelEvdoSnr;
361    }
362
363    private final void updateTelephonySignalStrength() {
364        // Display signal strength while in "emergency calls only" mode
365        if (mServiceState == null || (!hasService() && !mServiceState.isEmergencyOnly())) {
366            //Slog.d(TAG, "updateTelephonySignalStrength: no service");
367            if (Settings.System.getInt(mContext.getContentResolver(),
368                    Settings.System.AIRPLANE_MODE_ON, 0) == 1) {
369                mPhoneSignalIconId = R.drawable.stat_sys_signal_flightmode;
370                mDataActiveSignalIconId = mDataSignalIconId = R.drawable.stat_sys_signal_flightmode;
371            } else {
372                mPhoneSignalIconId = R.drawable.stat_sys_signal_null;
373                // note we use 0 instead of null
374                mDataActiveSignalIconId = mDataSignalIconId = R.drawable.stat_sys_signal_0;
375            }
376        } else {
377            if (mSignalStrength == null) {
378                mPhoneSignalIconId = R.drawable.stat_sys_signal_null;
379                // note we use 0 instead of null
380                mDataActiveSignalIconId = mDataSignalIconId = R.drawable.stat_sys_signal_0;
381            } else if (isCdma()) {
382                // If 3G(EV) and 1x network are available than 3G should be
383                // displayed, displayed RSSI should be from the EV side.
384                // If a voice call is made then RSSI should switch to 1x.
385                int iconLevel;
386                if ((mPhoneState == TelephonyManager.CALL_STATE_IDLE) && isEvdo()){
387                    iconLevel = getEvdoLevel();
388                } else {
389                    iconLevel = getCdmaLevel();
390                }
391                int[] iconList;
392                if (isCdmaEri()) {
393                    iconList = TelephonyIcons.TELEPHONY_SIGNAL_STRENGTH_ROAMING[mInetCondition];
394                } else {
395                    iconList = TelephonyIcons.TELEPHONY_SIGNAL_STRENGTH[mInetCondition];
396                }
397                mPhoneSignalIconId = iconList[iconLevel];
398                mDataSignalIconId = TelephonyIcons.DATA_SIGNAL_STRENGTH[mInetCondition][iconLevel];
399                mDataActiveSignalIconId
400                        = TelephonyIcons.DATA_SIGNAL_STRENGTH_ACTIVE[mInetCondition][iconLevel];
401            } else {
402                int asu = mSignalStrength.getGsmSignalStrength();
403
404                // ASU ranges from 0 to 31 - TS 27.007 Sec 8.5
405                // asu = 0 (-113dB or less) is very weak
406                // signal, its better to show 0 bars to the user in such cases.
407                // asu = 99 is a special case, where the signal strength is unknown.
408                int iconLevel;
409                if (asu <= 2 || asu == 99) iconLevel = 0;
410                else if (asu >= 12) iconLevel = 4;
411                else if (asu >= 8)  iconLevel = 3;
412                else if (asu >= 5)  iconLevel = 2;
413                else iconLevel = 1;
414
415                // Though mPhone is a Manager, this call is not an IPC
416                int[] iconList;
417                if (mPhone.isNetworkRoaming()) {
418                    iconList = TelephonyIcons.TELEPHONY_SIGNAL_STRENGTH_ROAMING[mInetCondition];
419                } else {
420                    iconList = TelephonyIcons.TELEPHONY_SIGNAL_STRENGTH[mInetCondition];
421                }
422                mPhoneSignalIconId = iconList[iconLevel];
423                mDataSignalIconId = TelephonyIcons.DATA_SIGNAL_STRENGTH[mInetCondition][iconLevel];
424                mDataActiveSignalIconId
425                        = TelephonyIcons.DATA_SIGNAL_STRENGTH_ACTIVE[mInetCondition][iconLevel];
426            }
427        }
428    }
429
430    private final void updateDataNetType() {
431        switch (mDataNetType) {
432            case TelephonyManager.NETWORK_TYPE_UNKNOWN:
433                mDataIconList = TelephonyIcons.DATA_G[mInetCondition];
434                mDataTypeIconId = 0;
435                break;
436            case TelephonyManager.NETWORK_TYPE_EDGE:
437                mDataIconList = TelephonyIcons.DATA_E[mInetCondition];
438                mDataTypeIconId = R.drawable.stat_sys_signal_edge;
439                break;
440            case TelephonyManager.NETWORK_TYPE_UMTS:
441                mDataIconList = TelephonyIcons.DATA_3G[mInetCondition];
442                mDataTypeIconId = R.drawable.stat_sys_signal_3g;
443                break;
444            case TelephonyManager.NETWORK_TYPE_HSDPA:
445            case TelephonyManager.NETWORK_TYPE_HSUPA:
446            case TelephonyManager.NETWORK_TYPE_HSPA:
447                if (mHspaDataDistinguishable) {
448                    mDataIconList = TelephonyIcons.DATA_H[mInetCondition];
449                    mDataTypeIconId = R.drawable.stat_sys_signal_hsdpa;
450                } else {
451                    mDataIconList = TelephonyIcons.DATA_3G[mInetCondition];
452                    mDataTypeIconId = R.drawable.stat_sys_signal_3g;
453                }
454                break;
455            case TelephonyManager.NETWORK_TYPE_CDMA:
456                // display 1xRTT for IS95A/B
457                mDataIconList = TelephonyIcons.DATA_1X[mInetCondition];
458                mDataTypeIconId = R.drawable.stat_sys_signal_1x;
459                break;
460            case TelephonyManager.NETWORK_TYPE_1xRTT:
461                mDataIconList = TelephonyIcons.DATA_1X[mInetCondition];
462                mDataTypeIconId = R.drawable.stat_sys_signal_1x;
463                break;
464            case TelephonyManager.NETWORK_TYPE_EVDO_0: //fall through
465            case TelephonyManager.NETWORK_TYPE_EVDO_A:
466            case TelephonyManager.NETWORK_TYPE_EVDO_B:
467                mDataIconList = TelephonyIcons.DATA_3G[mInetCondition];
468                mDataTypeIconId = R.drawable.stat_sys_signal_3g;
469                break;
470            // TODO - add support for NETWORK_TYPE_LTE and NETWORK_TYPE_EHRPD
471            default:
472                mDataIconList = TelephonyIcons.DATA_G[mInetCondition];
473                mDataTypeIconId = R.drawable.stat_sys_signal_gprs;
474                break;
475        }
476        if ((isCdma() && isCdmaEri()) || mPhone.isNetworkRoaming()) {
477            mDataTypeIconId = R.drawable.stat_sys_signal_roam;
478        }
479    }
480
481    boolean isCdmaEri() {
482        final int iconIndex = mServiceState.getCdmaEriIconIndex();
483        if (iconIndex != EriInfo.ROAMING_INDICATOR_OFF) {
484            final int iconMode = mServiceState.getCdmaEriIconMode();
485            if (iconMode == EriInfo.ROAMING_ICON_MODE_NORMAL
486                    || iconMode == EriInfo.ROAMING_ICON_MODE_FLASH) {
487                return true;
488            }
489        }
490        return false;
491    }
492
493    private final void updateDataIcon() {
494        int iconId;
495        boolean visible = true;
496
497        if (!isCdma()) {
498            // GSM case, we have to check also the sim state
499            if (mSimState == IccCard.State.READY || mSimState == IccCard.State.UNKNOWN) {
500                if (hasService() && mDataState == TelephonyManager.DATA_CONNECTED) {
501                    switch (mDataActivity) {
502                        case TelephonyManager.DATA_ACTIVITY_IN:
503                            iconId = mDataIconList[1];
504                            break;
505                        case TelephonyManager.DATA_ACTIVITY_OUT:
506                            iconId = mDataIconList[2];
507                            break;
508                        case TelephonyManager.DATA_ACTIVITY_INOUT:
509                            iconId = mDataIconList[3];
510                            break;
511                        default:
512                            iconId = mDataIconList[0];
513                            break;
514                    }
515                    mDataDirectionIconId = iconId;
516                } else {
517                    iconId = 0;
518                    visible = false;
519                }
520            } else {
521                iconId = R.drawable.stat_sys_no_sim;
522            }
523        } else {
524            // CDMA case, mDataActivity can be also DATA_ACTIVITY_DORMANT
525            if (hasService() && mDataState == TelephonyManager.DATA_CONNECTED) {
526                switch (mDataActivity) {
527                    case TelephonyManager.DATA_ACTIVITY_IN:
528                        iconId = mDataIconList[1];
529                        break;
530                    case TelephonyManager.DATA_ACTIVITY_OUT:
531                        iconId = mDataIconList[2];
532                        break;
533                    case TelephonyManager.DATA_ACTIVITY_INOUT:
534                        iconId = mDataIconList[3];
535                        break;
536                    case TelephonyManager.DATA_ACTIVITY_DORMANT:
537                    default:
538                        iconId = mDataIconList[0];
539                        break;
540                }
541            } else {
542                iconId = 0;
543                visible = false;
544            }
545        }
546
547        // yuck - this should NOT be done by the status bar
548        long ident = Binder.clearCallingIdentity();
549        try {
550            mBatteryStats.notePhoneDataConnectionState(mPhone.getNetworkType(), visible);
551        } catch (RemoteException e) {
552        } finally {
553            Binder.restoreCallingIdentity(ident);
554        }
555
556        mDataDirectionIconId = iconId;
557        mDataConnected = visible;
558    }
559
560    void updateNetworkName(boolean showSpn, String spn, boolean showPlmn, String plmn) {
561        if (false) {
562            Slog.d("CarrierLabel", "updateNetworkName showSpn=" + showSpn + " spn=" + spn
563                    + " showPlmn=" + showPlmn + " plmn=" + plmn);
564        }
565        StringBuilder str = new StringBuilder();
566        boolean something = false;
567        if (showPlmn && plmn != null) {
568            str.append(plmn);
569            something = true;
570        }
571        if (showSpn && spn != null) {
572            if (something) {
573                str.append(mNetworkNameSeparator);
574            }
575            str.append(spn);
576            something = true;
577        }
578        if (something) {
579            mNetworkName = str.toString();
580        } else {
581            mNetworkName = mNetworkNameDefault;
582        }
583    }
584
585    // ===== Wifi ===================================================================
586
587    private void updateWifiState(Intent intent) {
588        final String action = intent.getAction();
589        if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) {
590            mWifiEnabled = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE,
591                    WifiManager.WIFI_STATE_UNKNOWN) == WifiManager.WIFI_STATE_ENABLED;
592
593        } else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {
594            final NetworkInfo networkInfo = (NetworkInfo)
595                    intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
596            boolean wasConnected = mWifiConnected;
597            mWifiConnected = networkInfo != null && networkInfo.isConnected();
598            // If we just connected, grab the inintial signal strength and ssid
599            if (mWifiConnected && !wasConnected) {
600                WifiInfo info = mWifiManager.getConnectionInfo();
601                if (info != null) {
602                    mWifiLevel = WifiManager.calculateSignalLevel(info.getRssi(),
603                            WifiIcons.WIFI_LEVEL_COUNT);
604                    mWifiSsid = huntForSsid(info);
605                } else {
606                    mWifiLevel = 0;
607                    mWifiSsid = null;
608                }
609            } else if (!mWifiConnected) {
610                mWifiLevel = 0;
611                mWifiSsid = null;
612            }
613
614        } else if (action.equals(WifiManager.RSSI_CHANGED_ACTION)) {
615            if (mWifiConnected) {
616                final int newRssi = intent.getIntExtra(WifiManager.EXTRA_NEW_RSSI, -200);
617                mWifiLevel = WifiManager.calculateSignalLevel(newRssi, WifiIcons.WIFI_LEVEL_COUNT);
618            }
619        }
620
621        updateWifiIcons();
622    }
623
624    private void updateWifiIcons() {
625        if (mWifiConnected) {
626            mWifiIconId = WifiIcons.WIFI_SIGNAL_STRENGTH[mInetCondition][mWifiLevel];
627        } else {
628            mWifiIconId = WifiIcons.WIFI_SIGNAL_STRENGTH[0][0];
629        }
630    }
631
632    private String huntForSsid(WifiInfo info) {
633        String ssid = info.getSSID();
634        if (ssid != null) {
635            return ssid;
636        }
637        // OK, it's not in the connectionInfo; we have to go hunting for it
638        List<WifiConfiguration> networks = mWifiManager.getConfiguredNetworks();
639        for (WifiConfiguration net : networks) {
640            if (net.networkId == info.getNetworkId()) {
641                return net.SSID;
642            }
643        }
644        return null;
645    }
646
647
648    // ===== Full or limited Internet connectivity ==================================
649
650    private void updateConnectivity(Intent intent) {
651        NetworkInfo info = (NetworkInfo)(intent.getParcelableExtra(
652                ConnectivityManager.EXTRA_NETWORK_INFO));
653        int connectionStatus = intent.getIntExtra(ConnectivityManager.EXTRA_INET_CONDITION, 0);
654
655        int inetCondition = (connectionStatus > INET_CONDITION_THRESHOLD ? 1 : 0);
656
657        switch (info.getType()) {
658            case ConnectivityManager.TYPE_MOBILE:
659                mInetCondition = inetCondition;
660                updateDataNetType();
661                updateDataIcon();
662                updateTelephonySignalStrength(); // apply any change in connectionStatus
663                break;
664            case ConnectivityManager.TYPE_WIFI:
665                mInetCondition = inetCondition;
666                updateWifiIcons();
667                break;
668            case ConnectivityManager.TYPE_BLUETOOTH:
669                mInetCondition = inetCondition;
670                if (info != null) {
671                    mBluetoothTethered = info.isConnected() ? true: false;
672                } else {
673                    mBluetoothTethered = false;
674                }
675                break;
676        }
677    }
678
679
680    // ===== Update the views =======================================================
681
682    // figure out what to show- there should be one connected network or nothing
683    // General order of preference is: wifi, 3G than bluetooth. This might vary by product.
684    void refreshViews() {
685        Context context = mContext;
686
687        int combinedSignalIconId;
688        int dataTypeIconId;
689        String label;
690        int N;
691
692        if (mWifiConnected) {
693            if (mWifiSsid == null) {
694                label = context.getString(R.string.status_bar_settings_signal_meter_wifi_nossid);
695            } else {
696                label = mWifiSsid;
697            }
698            combinedSignalIconId = mWifiIconId;
699            dataTypeIconId = 0;
700        } else if (mDataConnected) {
701            label = mNetworkName;
702            switch (mDataActivity) {
703                case TelephonyManager.DATA_ACTIVITY_IN:
704                case TelephonyManager.DATA_ACTIVITY_OUT:
705                case TelephonyManager.DATA_ACTIVITY_INOUT:
706                    combinedSignalIconId = mDataActiveSignalIconId;
707                    break;
708                default:
709                    combinedSignalIconId = mDataSignalIconId;
710                    break;
711            }
712            dataTypeIconId = mDataTypeIconId;
713        } else if (mBluetoothTethered) {
714            label = mContext.getString(R.string.bluetooth_tethered);
715            combinedSignalIconId = mBluetoothTetherIconId;
716            dataTypeIconId = 0;
717        } else {
718            label = context.getString(R.string.status_bar_settings_signal_meter_disconnected);
719            combinedSignalIconId = mDataSignalIconId;
720            dataTypeIconId = 0;
721        }
722
723        if (false) {
724            Slog.d(TAG, "refreshViews combinedSignalIconId=0x"
725                    + Integer.toHexString(combinedSignalIconId)
726                    + "/" + getResourceName(combinedSignalIconId)
727                    + " mDataActivity=" + mDataActivity
728                    + " mPhoneSignalIconId=0x" + Integer.toHexString(mPhoneSignalIconId)
729                    + " mDataDirectionIconId=0x" + Integer.toHexString(mDataDirectionIconId)
730                    + " mDataSignalIconId=0x" + Integer.toHexString(mDataSignalIconId)
731                    + " mDataActiveSignalIconId=0x" + Integer.toHexString(mDataActiveSignalIconId)
732                    + " mDataTypeIconId=0x" + Integer.toHexString(mDataTypeIconId)
733                    + " mWifiIconId=0x" + Integer.toHexString(mWifiIconId)
734                    + " mBluetoothTetherIconId=0x" + Integer.toHexString(mBluetoothTetherIconId));
735        }
736
737        // the phone icon on phones
738        if (mLastPhoneSignalIconId != mPhoneSignalIconId) {
739            mLastPhoneSignalIconId = mPhoneSignalIconId;
740            N = mPhoneSignalIconViews.size();
741            for (int i=0; i<N; i++) {
742                final ImageView v = mPhoneSignalIconViews.get(i);
743                v.setImageResource(mPhoneSignalIconId);
744            }
745        }
746
747        // the data icon on phones
748        if (mLastDataDirectionIconId != mDataDirectionIconId) {
749            mLastDataDirectionIconId = mDataDirectionIconId;
750            N = mDataDirectionIconViews.size();
751            for (int i=0; i<N; i++) {
752                final ImageView v = mDataDirectionIconViews.get(i);
753                v.setImageResource(mDataDirectionIconId);
754            }
755        }
756
757        // the wifi icon on phones
758        if (mLastWifiIconId != mWifiIconId) {
759            mLastWifiIconId = mWifiIconId;
760            N = mWifiIconViews.size();
761            for (int i=0; i<N; i++) {
762                final ImageView v = mWifiIconViews.get(i);
763                v.setImageResource(mWifiIconId);
764            }
765        }
766
767        // the combined data signal icon
768        if (mLastCombinedSignalIconId != combinedSignalIconId) {
769            mLastCombinedSignalIconId = combinedSignalIconId;
770            N = mCombinedSignalIconViews.size();
771            for (int i=0; i<N; i++) {
772                final ImageView v = mCombinedSignalIconViews.get(i);
773                v.setImageResource(combinedSignalIconId);
774            }
775        }
776
777        // the data network type overlay
778        if (mLastDataTypeIconId != dataTypeIconId) {
779            mLastDataTypeIconId = dataTypeIconId;
780            N = mDataTypeIconViews.size();
781            for (int i=0; i<N; i++) {
782                final ImageView v = mDataTypeIconViews.get(i);
783                if (dataTypeIconId == 0) {
784                    v.setVisibility(View.INVISIBLE);
785                } else {
786                    v.setVisibility(View.VISIBLE);
787                    v.setImageResource(dataTypeIconId);
788                }
789            }
790        }
791
792        // the label in the notification panel
793        if (!mLastLabel.equals(label)) {
794            mLastLabel = label;
795            N = mLabelViews.size();
796            for (int i=0; i<N; i++) {
797                TextView v = mLabelViews.get(i);
798                v.setText(label);
799            }
800        }
801    }
802
803    public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
804        pw.println("  - telephony ------");
805        pw.print("  mHspaDataDistinguishable=");
806        pw.println(mHspaDataDistinguishable);
807        pw.print("  mDataConnected=");
808        pw.println(mDataConnected);
809        pw.print("  mSimState=");
810        pw.println(mSimState);
811        pw.print("  mPhoneState=");
812        pw.println(mPhoneState);
813        pw.print("  mDataState=");
814        pw.println(mDataState);
815        pw.print("  mDataActivity=");
816        pw.println(mDataActivity);
817        pw.print("  mServiceState=");
818        pw.println(mServiceState.toString());
819        pw.print("  mNetworkName=");
820        pw.println(mNetworkName);
821        pw.print("  mNetworkNameDefault=");
822        pw.println(mNetworkNameDefault);
823        pw.print("  mNetworkNameSeparator=");
824        pw.println(mNetworkNameSeparator);
825        pw.print("  mPhoneSignalIconId=0x");
826        pw.print(Integer.toHexString(mPhoneSignalIconId));
827        pw.print("/");
828        pw.println(getResourceName(mPhoneSignalIconId));
829        pw.print("  mDataDirectionIconId=");
830        pw.print(Integer.toHexString(mDataDirectionIconId));
831        pw.print("/");
832        pw.println(getResourceName(mDataDirectionIconId));
833        pw.print("  mDataSignalIconId=");
834        pw.print(Integer.toHexString(mDataSignalIconId));
835        pw.print("/");
836        pw.println(getResourceName(mDataSignalIconId));
837        pw.print("  mDataActiveSignalIconId=");
838        pw.print(Integer.toHexString(mDataActiveSignalIconId));
839        pw.print("/");
840        pw.println(getResourceName(mDataActiveSignalIconId));
841        pw.print("  mDataTypeIconId=");
842        pw.print(Integer.toHexString(mDataTypeIconId));
843        pw.print("/");
844        pw.println(getResourceName(mDataTypeIconId));
845
846        pw.println("  - wifi ------");
847        pw.print("  mWifiEnabled=");
848        pw.println(mWifiEnabled);
849        pw.print("  mWifiConnected=");
850        pw.println(mWifiConnected);
851        pw.print("  mWifiLevel=");
852        pw.println(mWifiLevel);
853        pw.print("  mWifiSsid=");
854        pw.println(mWifiSsid);
855        pw.print("  mWifiIconId=");
856        pw.println(mWifiIconId);
857
858        pw.println("  - Bluetooth ----");
859        pw.print(" mBtReverseTethered=");
860        pw.println(mBluetoothTethered);
861
862        pw.println("  - connectivity ------");
863        pw.print("  mInetCondition=");
864        pw.println(mInetCondition);
865
866        pw.println("  - icons ------");
867        pw.print("  mLastPhoneSignalIconId=0x");
868        pw.print(Integer.toHexString(mLastPhoneSignalIconId));
869        pw.print("/");
870        pw.println(getResourceName(mLastPhoneSignalIconId));
871        pw.print("  mLastDataDirectionIconId=0x");
872        pw.print(Integer.toHexString(mLastDataDirectionIconId));
873        pw.print("/");
874        pw.println(getResourceName(mLastDataDirectionIconId));
875        pw.print("  mLastWifiIconId=0x");
876        pw.print(Integer.toHexString(mLastWifiIconId));
877        pw.print("/");
878        pw.println(getResourceName(mLastWifiIconId));
879        pw.print("  mLastCombinedSignalIconId=0x");
880        pw.print(Integer.toHexString(mLastCombinedSignalIconId));
881        pw.print("/");
882        pw.println(getResourceName(mLastCombinedSignalIconId));
883        pw.print("  mLastDataTypeIconId=0x");
884        pw.print(Integer.toHexString(mLastDataTypeIconId));
885        pw.print("/");
886        pw.println(getResourceName(mLastCombinedSignalIconId));
887        pw.print("  mLastLabel=");
888        pw.print(mLastLabel);
889    }
890
891    private String getResourceName(int resId) {
892        if (resId == 0) {
893            final Resources res = mContext.getResources();
894            try {
895                return res.getResourceName(resId);
896            } catch (android.content.res.Resources.NotFoundException ex) {
897                return "(unknown)";
898            }
899        } else {
900            return "(null)";
901        }
902    }
903
904}
905