1/*
2 * Copyright (C) 2006-2007 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.server.am;
18
19import android.bluetooth.BluetoothAdapter;
20import android.bluetooth.BluetoothHeadset;
21import android.bluetooth.BluetoothProfile;
22import android.content.Context;
23import android.content.pm.ApplicationInfo;
24import android.content.pm.PackageManager;
25import android.os.Binder;
26import android.os.IBinder;
27import android.os.Parcel;
28import android.os.Process;
29import android.os.ServiceManager;
30import android.os.WorkSource;
31import android.telephony.SignalStrength;
32import android.telephony.TelephonyManager;
33import android.util.Slog;
34
35import com.android.internal.app.IBatteryStats;
36import com.android.internal.os.BatteryStatsImpl;
37import com.android.internal.os.PowerProfile;
38
39import java.io.FileDescriptor;
40import java.io.PrintWriter;
41import java.util.List;
42
43/**
44 * All information we are collecting about things that can happen that impact
45 * battery life.
46 */
47public final class BatteryStatsService extends IBatteryStats.Stub {
48    static IBatteryStats sService;
49
50    final BatteryStatsImpl mStats;
51    Context mContext;
52    private boolean mBluetoothPendingStats;
53    private BluetoothHeadset mBluetoothHeadset;
54
55    BatteryStatsService(String filename) {
56        mStats = new BatteryStatsImpl(filename);
57    }
58
59    public void publish(Context context) {
60        mContext = context;
61        ServiceManager.addService("batteryinfo", asBinder());
62        mStats.setNumSpeedSteps(new PowerProfile(mContext).getNumSpeedSteps());
63        mStats.setRadioScanningTimeout(mContext.getResources().getInteger(
64                com.android.internal.R.integer.config_radioScanningTimeout)
65                * 1000L);
66    }
67
68    public void shutdown() {
69        Slog.w("BatteryStats", "Writing battery stats before shutdown...");
70        synchronized (mStats) {
71            mStats.shutdownLocked();
72        }
73    }
74
75    public static IBatteryStats getService() {
76        if (sService != null) {
77            return sService;
78        }
79        IBinder b = ServiceManager.getService("batteryinfo");
80        sService = asInterface(b);
81        return sService;
82    }
83
84    /**
85     * @return the current statistics object, which may be modified
86     * to reflect events that affect battery usage.  You must lock the
87     * stats object before doing anything with it.
88     */
89    public BatteryStatsImpl getActiveStatistics() {
90        return mStats;
91    }
92
93    public byte[] getStatistics() {
94        mContext.enforceCallingPermission(
95                android.Manifest.permission.BATTERY_STATS, null);
96        //Slog.i("foo", "SENDING BATTERY INFO:");
97        //mStats.dumpLocked(new LogPrinter(Log.INFO, "foo", Log.LOG_ID_SYSTEM));
98        Parcel out = Parcel.obtain();
99        mStats.writeToParcel(out, 0);
100        byte[] data = out.marshall();
101        out.recycle();
102        return data;
103    }
104
105    public void noteStartWakelock(int uid, int pid, String name, int type) {
106        enforceCallingPermission();
107        synchronized (mStats) {
108            mStats.noteStartWakeLocked(uid, pid, name, type);
109        }
110    }
111
112    public void noteStopWakelock(int uid, int pid, String name, int type) {
113        enforceCallingPermission();
114        synchronized (mStats) {
115            mStats.noteStopWakeLocked(uid, pid, name, type);
116        }
117    }
118
119    public void noteStartWakelockFromSource(WorkSource ws, int pid, String name, int type) {
120        enforceCallingPermission();
121        synchronized (mStats) {
122            mStats.noteStartWakeFromSourceLocked(ws, pid, name, type);
123        }
124    }
125
126    public void noteStopWakelockFromSource(WorkSource ws, int pid, String name, int type) {
127        enforceCallingPermission();
128        synchronized (mStats) {
129            mStats.noteStopWakeFromSourceLocked(ws, pid, name, type);
130        }
131    }
132
133    public void noteStartSensor(int uid, int sensor) {
134        enforceCallingPermission();
135        synchronized (mStats) {
136            mStats.noteStartSensorLocked(uid, sensor);
137        }
138    }
139
140    public void noteStopSensor(int uid, int sensor) {
141        enforceCallingPermission();
142        synchronized (mStats) {
143            mStats.noteStopSensorLocked(uid, sensor);
144        }
145    }
146
147    public void noteStartGps(int uid) {
148        enforceCallingPermission();
149        synchronized (mStats) {
150            mStats.noteStartGpsLocked(uid);
151        }
152    }
153
154    public void noteStopGps(int uid) {
155        enforceCallingPermission();
156        synchronized (mStats) {
157            mStats.noteStopGpsLocked(uid);
158        }
159    }
160
161    public void noteScreenOn() {
162        enforceCallingPermission();
163        synchronized (mStats) {
164            mStats.noteScreenOnLocked();
165        }
166    }
167
168    public void noteScreenBrightness(int brightness) {
169        enforceCallingPermission();
170        synchronized (mStats) {
171            mStats.noteScreenBrightnessLocked(brightness);
172        }
173    }
174
175    public void noteScreenOff() {
176        enforceCallingPermission();
177        synchronized (mStats) {
178            mStats.noteScreenOffLocked();
179        }
180    }
181
182    public void noteInputEvent() {
183        enforceCallingPermission();
184        mStats.noteInputEventAtomic();
185    }
186
187    public void noteUserActivity(int uid, int event) {
188        enforceCallingPermission();
189        synchronized (mStats) {
190            mStats.noteUserActivityLocked(uid, event);
191        }
192    }
193
194    public void notePhoneOn() {
195        enforceCallingPermission();
196        synchronized (mStats) {
197            mStats.notePhoneOnLocked();
198        }
199    }
200
201    public void notePhoneOff() {
202        enforceCallingPermission();
203        synchronized (mStats) {
204            mStats.notePhoneOffLocked();
205        }
206    }
207
208    public void notePhoneSignalStrength(SignalStrength signalStrength) {
209        enforceCallingPermission();
210        synchronized (mStats) {
211            mStats.notePhoneSignalStrengthLocked(signalStrength);
212        }
213    }
214
215    public void notePhoneDataConnectionState(int dataType, boolean hasData) {
216        enforceCallingPermission();
217        synchronized (mStats) {
218            mStats.notePhoneDataConnectionStateLocked(dataType, hasData);
219        }
220    }
221
222    public void notePhoneState(int state) {
223        enforceCallingPermission();
224        int simState = TelephonyManager.getDefault().getSimState();
225        synchronized (mStats) {
226            mStats.notePhoneStateLocked(state, simState);
227        }
228    }
229
230    public void noteWifiOn() {
231        enforceCallingPermission();
232        synchronized (mStats) {
233            mStats.noteWifiOnLocked();
234        }
235    }
236
237    public void noteWifiOff() {
238        enforceCallingPermission();
239        synchronized (mStats) {
240            mStats.noteWifiOffLocked();
241        }
242    }
243
244    public void noteStartAudio(int uid) {
245        enforceCallingPermission();
246        synchronized (mStats) {
247            mStats.noteAudioOnLocked(uid);
248        }
249    }
250
251    public void noteStopAudio(int uid) {
252        enforceCallingPermission();
253        synchronized (mStats) {
254            mStats.noteAudioOffLocked(uid);
255        }
256    }
257
258    public void noteStartVideo(int uid) {
259        enforceCallingPermission();
260        synchronized (mStats) {
261            mStats.noteVideoOnLocked(uid);
262        }
263    }
264
265    public void noteStopVideo(int uid) {
266        enforceCallingPermission();
267        synchronized (mStats) {
268            mStats.noteVideoOffLocked(uid);
269        }
270    }
271
272    public void noteWifiRunning(WorkSource ws) {
273        enforceCallingPermission();
274        synchronized (mStats) {
275            mStats.noteWifiRunningLocked(ws);
276        }
277    }
278
279    public void noteWifiRunningChanged(WorkSource oldWs, WorkSource newWs) {
280        enforceCallingPermission();
281        synchronized (mStats) {
282            mStats.noteWifiRunningChangedLocked(oldWs, newWs);
283        }
284    }
285
286    public void noteWifiStopped(WorkSource ws) {
287        enforceCallingPermission();
288        synchronized (mStats) {
289            mStats.noteWifiStoppedLocked(ws);
290        }
291    }
292
293    public void noteBluetoothOn() {
294        enforceCallingPermission();
295        BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
296        if (adapter != null) {
297            adapter.getProfileProxy(mContext, mBluetoothProfileServiceListener,
298                                    BluetoothProfile.HEADSET);
299        }
300        synchronized (mStats) {
301            if (mBluetoothHeadset != null) {
302                mStats.noteBluetoothOnLocked();
303                mStats.setBtHeadset(mBluetoothHeadset);
304            } else {
305                mBluetoothPendingStats = true;
306            }
307        }
308    }
309
310    private BluetoothProfile.ServiceListener mBluetoothProfileServiceListener =
311        new BluetoothProfile.ServiceListener() {
312        public void onServiceConnected(int profile, BluetoothProfile proxy) {
313            mBluetoothHeadset = (BluetoothHeadset) proxy;
314            synchronized (mStats) {
315                if (mBluetoothPendingStats) {
316                    mStats.noteBluetoothOnLocked();
317                    mStats.setBtHeadset(mBluetoothHeadset);
318                    mBluetoothPendingStats = false;
319                }
320            }
321        }
322
323        public void onServiceDisconnected(int profile) {
324            mBluetoothHeadset = null;
325        }
326    };
327
328    public void noteBluetoothOff() {
329        enforceCallingPermission();
330        synchronized (mStats) {
331            mBluetoothPendingStats = false;
332            mStats.noteBluetoothOffLocked();
333        }
334    }
335
336    public void noteFullWifiLockAcquired(int uid) {
337        enforceCallingPermission();
338        synchronized (mStats) {
339            mStats.noteFullWifiLockAcquiredLocked(uid);
340        }
341    }
342
343    public void noteFullWifiLockReleased(int uid) {
344        enforceCallingPermission();
345        synchronized (mStats) {
346            mStats.noteFullWifiLockReleasedLocked(uid);
347        }
348    }
349
350    public void noteWifiScanStarted(int uid) {
351        enforceCallingPermission();
352        synchronized (mStats) {
353            mStats.noteWifiScanStartedLocked(uid);
354        }
355    }
356
357    public void noteWifiScanStopped(int uid) {
358        enforceCallingPermission();
359        synchronized (mStats) {
360            mStats.noteWifiScanStoppedLocked(uid);
361        }
362    }
363
364    public void noteWifiMulticastEnabled(int uid) {
365        enforceCallingPermission();
366        synchronized (mStats) {
367            mStats.noteWifiMulticastEnabledLocked(uid);
368        }
369    }
370
371    public void noteWifiMulticastDisabled(int uid) {
372        enforceCallingPermission();
373        synchronized (mStats) {
374            mStats.noteWifiMulticastDisabledLocked(uid);
375        }
376    }
377
378    public void noteFullWifiLockAcquiredFromSource(WorkSource ws) {
379        enforceCallingPermission();
380        synchronized (mStats) {
381            mStats.noteFullWifiLockAcquiredFromSourceLocked(ws);
382        }
383    }
384
385    public void noteFullWifiLockReleasedFromSource(WorkSource ws) {
386        enforceCallingPermission();
387        synchronized (mStats) {
388            mStats.noteFullWifiLockReleasedFromSourceLocked(ws);
389        }
390    }
391
392    public void noteWifiScanStartedFromSource(WorkSource ws) {
393        enforceCallingPermission();
394        synchronized (mStats) {
395            mStats.noteWifiScanStartedFromSourceLocked(ws);
396        }
397    }
398
399    public void noteWifiScanStoppedFromSource(WorkSource ws) {
400        enforceCallingPermission();
401        synchronized (mStats) {
402            mStats.noteWifiScanStoppedFromSourceLocked(ws);
403        }
404    }
405
406    public void noteWifiMulticastEnabledFromSource(WorkSource ws) {
407        enforceCallingPermission();
408        synchronized (mStats) {
409            mStats.noteWifiMulticastEnabledFromSourceLocked(ws);
410        }
411    }
412
413    public void noteWifiMulticastDisabledFromSource(WorkSource ws) {
414        enforceCallingPermission();
415        synchronized (mStats) {
416            mStats.noteWifiMulticastDisabledFromSourceLocked(ws);
417        }
418    }
419
420    public void noteNetworkInterfaceType(String iface, int type) {
421        enforceCallingPermission();
422        synchronized (mStats) {
423            mStats.noteNetworkInterfaceTypeLocked(iface, type);
424        }
425    }
426
427    public boolean isOnBattery() {
428        return mStats.isOnBattery();
429    }
430
431    public void setBatteryState(int status, int health, int plugType, int level,
432            int temp, int volt) {
433        enforceCallingPermission();
434        mStats.setBatteryState(status, health, plugType, level, temp, volt);
435    }
436
437    public long getAwakeTimeBattery() {
438        mContext.enforceCallingOrSelfPermission(
439                android.Manifest.permission.BATTERY_STATS, null);
440        return mStats.getAwakeTimeBattery();
441    }
442
443    public long getAwakeTimePlugged() {
444        mContext.enforceCallingOrSelfPermission(
445                android.Manifest.permission.BATTERY_STATS, null);
446        return mStats.getAwakeTimePlugged();
447    }
448
449    public void enforceCallingPermission() {
450        if (Binder.getCallingPid() == Process.myPid()) {
451            return;
452        }
453        mContext.enforcePermission(android.Manifest.permission.UPDATE_DEVICE_STATS,
454                Binder.getCallingPid(), Binder.getCallingUid(), null);
455    }
456
457    private void dumpHelp(PrintWriter pw) {
458        pw.println("Battery stats (batteryinfo) dump options:");
459        pw.println("  [--checkin] [--reset] [--write] [-h]");
460        pw.println("  --checkin: format output for a checkin report.");
461        pw.println("  --reset: reset the stats, clearing all current data.");
462        pw.println("  --write: force write current collected stats to disk.");
463        pw.println("  -h: print this help text.");
464    }
465
466    @Override
467    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
468        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
469                != PackageManager.PERMISSION_GRANTED) {
470            pw.println("Permission Denial: can't dump BatteryStats from from pid="
471                    + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
472                    + " without permission " + android.Manifest.permission.DUMP);
473            return;
474        }
475
476        boolean isCheckin = false;
477        boolean noOutput = false;
478        if (args != null) {
479            for (String arg : args) {
480                if ("--checkin".equals(arg)) {
481                    isCheckin = true;
482                } else if ("--reset".equals(arg)) {
483                    synchronized (mStats) {
484                        mStats.resetAllStatsLocked();
485                        pw.println("Battery stats reset.");
486                        noOutput = true;
487                    }
488                } else if ("--write".equals(arg)) {
489                    synchronized (mStats) {
490                        mStats.writeSyncLocked();
491                        pw.println("Battery stats written.");
492                        noOutput = true;
493                    }
494                } else if ("-h".equals(arg)) {
495                    dumpHelp(pw);
496                    return;
497                } else if ("-a".equals(arg)) {
498                    // fall through
499                } else {
500                    pw.println("Unknown option: " + arg);
501                    dumpHelp(pw);
502                }
503            }
504        }
505        if (noOutput) {
506            return;
507        }
508        if (isCheckin) {
509            List<ApplicationInfo> apps = mContext.getPackageManager().getInstalledApplications(0);
510            synchronized (mStats) {
511                mStats.dumpCheckinLocked(pw, args, apps);
512            }
513        } else {
514            synchronized (mStats) {
515                mStats.dumpLocked(pw);
516            }
517        }
518    }
519}
520