| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server; |
| |
| import android.app.AppOpsManager; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.content.res.Resources; |
| import android.database.ContentObserver; |
| import android.hardware.input.InputManager; |
| import android.hardware.vibrator.V1_0.Constants.EffectStrength; |
| import android.media.AudioManager; |
| import android.os.PowerSaveState; |
| import android.os.BatteryStats; |
| import android.os.Handler; |
| import android.os.IVibratorService; |
| import android.os.PowerManager; |
| import android.os.PowerManagerInternal; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ResultReceiver; |
| import android.os.IBinder; |
| import android.os.Binder; |
| import android.os.ServiceManager; |
| import android.os.ShellCallback; |
| import android.os.ShellCommand; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.os.Vibrator; |
| import android.os.VibrationEffect; |
| import android.os.WorkSource; |
| import android.provider.Settings; |
| import android.provider.Settings.SettingNotFoundException; |
| import android.util.DebugUtils; |
| import android.util.Slog; |
| import android.view.InputDevice; |
| import android.media.AudioAttributes; |
| |
| import com.android.internal.app.IAppOpsService; |
| import com.android.internal.app.IBatteryStats; |
| import com.android.internal.util.DumpUtils; |
| import com.android.server.power.BatterySaverPolicy.ServiceType; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.LinkedList; |
| |
| public class VibratorService extends IVibratorService.Stub |
| implements InputManager.InputDeviceListener { |
| private static final String TAG = "VibratorService"; |
| private static final boolean DEBUG = false; |
| private static final String SYSTEM_UI_PACKAGE = "com.android.systemui"; |
| |
| private final LinkedList<VibrationInfo> mPreviousVibrations; |
| private final int mPreviousVibrationsLimit; |
| private final boolean mAllowPriorityVibrationsInLowPowerMode; |
| private final boolean mSupportsAmplitudeControl; |
| private final int mDefaultVibrationAmplitude; |
| private final VibrationEffect[] mFallbackEffects; |
| private final WorkSource mTmpWorkSource = new WorkSource(); |
| private final Handler mH = new Handler(); |
| private final Object mLock = new Object(); |
| |
| private final Context mContext; |
| private final PowerManager.WakeLock mWakeLock; |
| private final IAppOpsService mAppOpsService; |
| private final IBatteryStats mBatteryStatsService; |
| private PowerManagerInternal mPowerManagerInternal; |
| private InputManager mIm; |
| |
| private volatile VibrateThread mThread; |
| |
| // mInputDeviceVibrators lock should be acquired after mLock, if both are |
| // to be acquired |
| private final ArrayList<Vibrator> mInputDeviceVibrators = new ArrayList<Vibrator>(); |
| private boolean mVibrateInputDevicesSetting; // guarded by mInputDeviceVibrators |
| private boolean mInputDeviceListenerRegistered; // guarded by mInputDeviceVibrators |
| |
| private Vibration mCurrentVibration; |
| private int mCurVibUid = -1; |
| private boolean mLowPowerMode; |
| private SettingsObserver mSettingObserver; |
| |
| native static boolean vibratorExists(); |
| native static void vibratorInit(); |
| native static void vibratorOn(long milliseconds); |
| native static void vibratorOff(); |
| native static boolean vibratorSupportsAmplitudeControl(); |
| native static void vibratorSetAmplitude(int amplitude); |
| native static long vibratorPerformEffect(long effect, long strength); |
| |
| private class Vibration implements IBinder.DeathRecipient { |
| private final IBinder mToken; |
| private final VibrationEffect mEffect; |
| private final long mStartTime; |
| private final int mUsageHint; |
| private final int mUid; |
| private final String mOpPkg; |
| |
| private Vibration(IBinder token, VibrationEffect effect, |
| int usageHint, int uid, String opPkg) { |
| mToken = token; |
| mEffect = effect; |
| mStartTime = SystemClock.uptimeMillis(); |
| mUsageHint = usageHint; |
| mUid = uid; |
| mOpPkg = opPkg; |
| } |
| |
| public void binderDied() { |
| synchronized (mLock) { |
| if (this == mCurrentVibration) { |
| doCancelVibrateLocked(); |
| } |
| } |
| } |
| |
| public boolean hasLongerTimeout(long millis) { |
| // If the current effect is a one shot vibration that will end after the given timeout |
| // for the new one shot vibration, then just let the current vibration finish. All |
| // other effect types will get pre-empted. |
| if (mEffect instanceof VibrationEffect.OneShot) { |
| VibrationEffect.OneShot oneShot = (VibrationEffect.OneShot) mEffect; |
| return mStartTime + oneShot.getTiming() > SystemClock.uptimeMillis() + millis; |
| } |
| return false; |
| } |
| |
| public boolean isSystemHapticFeedback() { |
| boolean repeating = false; |
| if (mEffect instanceof VibrationEffect.Waveform) { |
| VibrationEffect.Waveform waveform = (VibrationEffect.Waveform) mEffect; |
| repeating = (waveform.getRepeatIndex() < 0); |
| } |
| return (mUid == Process.SYSTEM_UID || mUid == 0 || SYSTEM_UI_PACKAGE.equals(mOpPkg)) |
| && !repeating; |
| } |
| } |
| |
| private static class VibrationInfo { |
| private final long mStartTime; |
| private final VibrationEffect mEffect; |
| private final int mUsageHint; |
| private final int mUid; |
| private final String mOpPkg; |
| |
| public VibrationInfo(long startTime, VibrationEffect effect, |
| int usageHint, int uid, String opPkg) { |
| mStartTime = startTime; |
| mEffect = effect; |
| mUsageHint = usageHint; |
| mUid = uid; |
| mOpPkg = opPkg; |
| } |
| |
| @Override |
| public String toString() { |
| return new StringBuilder() |
| .append(", startTime: ") |
| .append(mStartTime) |
| .append(", effect: ") |
| .append(mEffect) |
| .append(", usageHint: ") |
| .append(mUsageHint) |
| .append(", uid: ") |
| .append(mUid) |
| .append(", opPkg: ") |
| .append(mOpPkg) |
| .toString(); |
| } |
| } |
| |
| VibratorService(Context context) { |
| vibratorInit(); |
| // Reset the hardware to a default state, in case this is a runtime |
| // restart instead of a fresh boot. |
| vibratorOff(); |
| |
| mSupportsAmplitudeControl = vibratorSupportsAmplitudeControl(); |
| |
| mContext = context; |
| PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE); |
| mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "*vibrator*"); |
| mWakeLock.setReferenceCounted(true); |
| |
| mAppOpsService = |
| IAppOpsService.Stub.asInterface(ServiceManager.getService(Context.APP_OPS_SERVICE)); |
| mBatteryStatsService = IBatteryStats.Stub.asInterface(ServiceManager.getService( |
| BatteryStats.SERVICE_NAME)); |
| |
| mPreviousVibrationsLimit = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_previousVibrationsDumpLimit); |
| |
| mDefaultVibrationAmplitude = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_defaultVibrationAmplitude); |
| |
| mAllowPriorityVibrationsInLowPowerMode = mContext.getResources().getBoolean( |
| com.android.internal.R.bool.config_allowPriorityVibrationsInLowPowerMode); |
| |
| mPreviousVibrations = new LinkedList<>(); |
| |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_SCREEN_OFF); |
| context.registerReceiver(mIntentReceiver, filter); |
| |
| long[] clickEffectTimings = getLongIntArray(context.getResources(), |
| com.android.internal.R.array.config_virtualKeyVibePattern); |
| VibrationEffect clickEffect = createEffect(clickEffectTimings); |
| VibrationEffect doubleClickEffect = VibrationEffect.createWaveform( |
| new long[] {0, 30, 100, 30} /*timings*/, -1); |
| long[] tickEffectTimings = getLongIntArray(context.getResources(), |
| com.android.internal.R.array.config_clockTickVibePattern); |
| VibrationEffect tickEffect = createEffect(tickEffectTimings); |
| |
| mFallbackEffects = new VibrationEffect[] { clickEffect, doubleClickEffect, tickEffect }; |
| } |
| |
| private static VibrationEffect createEffect(long[] timings) { |
| if (timings == null || timings.length == 0) { |
| return null; |
| } else if (timings.length == 1) { |
| return VibrationEffect.createOneShot(timings[0], VibrationEffect.DEFAULT_AMPLITUDE); |
| } else { |
| return VibrationEffect.createWaveform(timings, -1); |
| } |
| } |
| |
| public void systemReady() { |
| mIm = mContext.getSystemService(InputManager.class); |
| mSettingObserver = new SettingsObserver(mH); |
| |
| mPowerManagerInternal = LocalServices.getService(PowerManagerInternal.class); |
| mPowerManagerInternal.registerLowPowerModeObserver( |
| new PowerManagerInternal.LowPowerModeListener() { |
| @Override |
| public int getServiceType() { |
| return ServiceType.VIBRATION; |
| } |
| |
| @Override |
| public void onLowPowerModeChanged(PowerSaveState result) { |
| updateVibrators(); |
| } |
| }); |
| |
| mContext.getContentResolver().registerContentObserver( |
| Settings.System.getUriFor(Settings.System.VIBRATE_INPUT_DEVICES), |
| true, mSettingObserver, UserHandle.USER_ALL); |
| |
| mContext.registerReceiver(new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| updateVibrators(); |
| } |
| }, new IntentFilter(Intent.ACTION_USER_SWITCHED), null, mH); |
| |
| updateVibrators(); |
| } |
| |
| private final class SettingsObserver extends ContentObserver { |
| public SettingsObserver(Handler handler) { |
| super(handler); |
| } |
| |
| @Override |
| public void onChange(boolean SelfChange) { |
| updateVibrators(); |
| } |
| } |
| |
| @Override // Binder call |
| public boolean hasVibrator() { |
| return doVibratorExists(); |
| } |
| |
| @Override // Binder call |
| public boolean hasAmplitudeControl() { |
| synchronized (mInputDeviceVibrators) { |
| // Input device vibrators don't support amplitude controls yet, but are still used over |
| // the system vibrator when connected. |
| return mSupportsAmplitudeControl && mInputDeviceVibrators.isEmpty(); |
| } |
| } |
| |
| private void verifyIncomingUid(int uid) { |
| if (uid == Binder.getCallingUid()) { |
| return; |
| } |
| if (Binder.getCallingPid() == Process.myPid()) { |
| return; |
| } |
| mContext.enforcePermission(android.Manifest.permission.UPDATE_APP_OPS_STATS, |
| Binder.getCallingPid(), Binder.getCallingUid(), null); |
| } |
| |
| /** |
| * Validate the incoming VibrationEffect. |
| * |
| * We can't throw exceptions here since we might be called from some system_server component, |
| * which would bring the whole system down. |
| * |
| * @return whether the VibrationEffect is valid |
| */ |
| private static boolean verifyVibrationEffect(VibrationEffect effect) { |
| if (effect == null) { |
| // Effect must not be null. |
| Slog.wtf(TAG, "effect must not be null"); |
| return false; |
| } |
| try { |
| effect.validate(); |
| } catch (Exception e) { |
| Slog.wtf(TAG, "Encountered issue when verifying VibrationEffect.", e); |
| return false; |
| } |
| return true; |
| } |
| |
| private static long[] getLongIntArray(Resources r, int resid) { |
| int[] ar = r.getIntArray(resid); |
| if (ar == null) { |
| return null; |
| } |
| long[] out = new long[ar.length]; |
| for (int i = 0; i < ar.length; i++) { |
| out[i] = ar[i]; |
| } |
| return out; |
| } |
| |
| @Override // Binder call |
| public void vibrate(int uid, String opPkg, VibrationEffect effect, int usageHint, |
| IBinder token) { |
| if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.VIBRATE) |
| != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException("Requires VIBRATE permission"); |
| } |
| if (token == null) { |
| Slog.e(TAG, "token must not be null"); |
| return; |
| } |
| verifyIncomingUid(uid); |
| if (!verifyVibrationEffect(effect)) { |
| return; |
| } |
| |
| // If our current vibration is longer than the new vibration and is the same amplitude, |
| // then just let the current one finish. |
| if (effect instanceof VibrationEffect.OneShot |
| && mCurrentVibration != null |
| && mCurrentVibration.mEffect instanceof VibrationEffect.OneShot) { |
| VibrationEffect.OneShot newOneShot = (VibrationEffect.OneShot) effect; |
| VibrationEffect.OneShot currentOneShot = |
| (VibrationEffect.OneShot) mCurrentVibration.mEffect; |
| if (mCurrentVibration.hasLongerTimeout(newOneShot.getTiming()) |
| && newOneShot.getAmplitude() == currentOneShot.getAmplitude()) { |
| if (DEBUG) { |
| Slog.d(TAG, "Ignoring incoming vibration in favor of current vibration"); |
| } |
| return; |
| } |
| } |
| |
| // If the current vibration is repeating and the incoming one is non-repeating, then ignore |
| // the non-repeating vibration. This is so that we don't cancel vibrations that are meant |
| // to grab the attention of the user, like ringtones and alarms, in favor of one-shot |
| // vibrations that are likely quite short. |
| if (!isRepeatingVibration(effect) |
| && mCurrentVibration != null && isRepeatingVibration(mCurrentVibration.mEffect)) { |
| if (DEBUG) { |
| Slog.d(TAG, "Ignoring incoming vibration in favor of alarm vibration"); |
| } |
| return; |
| } |
| |
| Vibration vib = new Vibration(token, effect, usageHint, uid, opPkg); |
| |
| // Only link against waveforms since they potentially don't have a finish if |
| // they're repeating. Let other effects just play out until they're done. |
| if (effect instanceof VibrationEffect.Waveform) { |
| try { |
| token.linkToDeath(vib, 0); |
| } catch (RemoteException e) { |
| return; |
| } |
| } |
| |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| synchronized (mLock) { |
| doCancelVibrateLocked(); |
| startVibrationLocked(vib); |
| addToPreviousVibrationsLocked(vib); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| private static boolean isRepeatingVibration(VibrationEffect effect) { |
| if (effect instanceof VibrationEffect.Waveform) { |
| final VibrationEffect.Waveform waveform = (VibrationEffect.Waveform) effect; |
| if (waveform.getRepeatIndex() >= 0) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private void addToPreviousVibrationsLocked(Vibration vib) { |
| if (mPreviousVibrations.size() > mPreviousVibrationsLimit) { |
| mPreviousVibrations.removeFirst(); |
| } |
| mPreviousVibrations.addLast(new VibrationInfo( |
| vib.mStartTime, vib.mEffect, vib.mUsageHint, vib.mUid, vib.mOpPkg)); |
| } |
| |
| @Override // Binder call |
| public void cancelVibrate(IBinder token) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.VIBRATE, |
| "cancelVibrate"); |
| |
| synchronized (mLock) { |
| if (mCurrentVibration != null && mCurrentVibration.mToken == token) { |
| if (DEBUG) { |
| Slog.d(TAG, "Canceling vibration."); |
| } |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| doCancelVibrateLocked(); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| } |
| |
| private final Runnable mVibrationEndRunnable = new Runnable() { |
| @Override |
| public void run() { |
| onVibrationFinished(); |
| } |
| }; |
| |
| private void doCancelVibrateLocked() { |
| mH.removeCallbacks(mVibrationEndRunnable); |
| if (mThread != null) { |
| mThread.cancel(); |
| mThread = null; |
| } |
| doVibratorOff(); |
| reportFinishVibrationLocked(); |
| } |
| |
| // Callback for whenever the current vibration has finished played out |
| public void onVibrationFinished() { |
| if (DEBUG) { |
| Slog.e(TAG, "Vibration finished, cleaning up"); |
| } |
| synchronized (mLock) { |
| // Make sure the vibration is really done. This also reports that the vibration is |
| // finished. |
| doCancelVibrateLocked(); |
| } |
| } |
| |
| private void startVibrationLocked(final Vibration vib) { |
| if (!isAllowedToVibrate(vib)) { |
| if (DEBUG) { |
| Slog.e(TAG, "Vibrate ignored, low power mode"); |
| } |
| return; |
| } |
| |
| if (vib.mUsageHint == AudioAttributes.USAGE_NOTIFICATION_RINGTONE && |
| !shouldVibrateForRingtone()) { |
| if (DEBUG) { |
| Slog.e(TAG, "Vibrate ignored, not vibrating for ringtones"); |
| } |
| return; |
| } |
| |
| final int mode = getAppOpMode(vib); |
| if (mode != AppOpsManager.MODE_ALLOWED) { |
| if (mode == AppOpsManager.MODE_ERRORED) { |
| // We might be getting calls from within system_server, so we don't actually want |
| // to throw a SecurityException here. |
| Slog.w(TAG, "Would be an error: vibrate from uid " + vib.mUid); |
| } |
| return; |
| } |
| startVibrationInnerLocked(vib); |
| } |
| |
| private void startVibrationInnerLocked(Vibration vib) { |
| mCurrentVibration = vib; |
| if (vib.mEffect instanceof VibrationEffect.OneShot) { |
| VibrationEffect.OneShot oneShot = (VibrationEffect.OneShot) vib.mEffect; |
| doVibratorOn(oneShot.getTiming(), oneShot.getAmplitude(), vib.mUid, vib.mUsageHint); |
| mH.postDelayed(mVibrationEndRunnable, oneShot.getTiming()); |
| } else if (vib.mEffect instanceof VibrationEffect.Waveform) { |
| // mThread better be null here. doCancelVibrate should always be |
| // called before startNextVibrationLocked or startVibrationLocked. |
| VibrationEffect.Waveform waveform = (VibrationEffect.Waveform) vib.mEffect; |
| mThread = new VibrateThread(waveform, vib.mUid, vib.mUsageHint); |
| mThread.start(); |
| } else if (vib.mEffect instanceof VibrationEffect.Prebaked) { |
| long timeout = doVibratorPrebakedEffectLocked(vib); |
| if (timeout > 0) { |
| mH.postDelayed(mVibrationEndRunnable, timeout); |
| } |
| } else { |
| Slog.e(TAG, "Unknown vibration type, ignoring"); |
| } |
| } |
| |
| private boolean isAllowedToVibrate(Vibration vib) { |
| if (!mLowPowerMode) { |
| return true; |
| } |
| if (vib.mUsageHint == AudioAttributes.USAGE_NOTIFICATION_RINGTONE) { |
| return true; |
| } |
| if (!mAllowPriorityVibrationsInLowPowerMode) { |
| return false; |
| } |
| if (vib.mUsageHint == AudioAttributes.USAGE_ALARM || |
| vib.mUsageHint == AudioAttributes.USAGE_ASSISTANCE_ACCESSIBILITY || |
| vib.mUsageHint == AudioAttributes.USAGE_NOTIFICATION_COMMUNICATION_REQUEST) { |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| private boolean shouldVibrateForRingtone() { |
| AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); |
| int ringerMode = audioManager.getRingerModeInternal(); |
| // "Also vibrate for calls" Setting in Sound |
| if (Settings.System.getInt( |
| mContext.getContentResolver(), Settings.System.VIBRATE_WHEN_RINGING, 0) != 0) { |
| return ringerMode != AudioManager.RINGER_MODE_SILENT; |
| } else { |
| return ringerMode == AudioManager.RINGER_MODE_VIBRATE; |
| } |
| } |
| |
| private int getAppOpMode(Vibration vib) { |
| int mode; |
| try { |
| mode = mAppOpsService.checkAudioOperation(AppOpsManager.OP_VIBRATE, |
| vib.mUsageHint, vib.mUid, vib.mOpPkg); |
| if (mode == AppOpsManager.MODE_ALLOWED) { |
| mode = mAppOpsService.startOperation(AppOpsManager.getToken(mAppOpsService), |
| AppOpsManager.OP_VIBRATE, vib.mUid, vib.mOpPkg); |
| } |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to get appop mode for vibration!", e); |
| mode = AppOpsManager.MODE_IGNORED; |
| } |
| return mode; |
| } |
| |
| private void reportFinishVibrationLocked() { |
| if (mCurrentVibration != null) { |
| try { |
| mAppOpsService.finishOperation(AppOpsManager.getToken(mAppOpsService), |
| AppOpsManager.OP_VIBRATE, mCurrentVibration.mUid, |
| mCurrentVibration.mOpPkg); |
| } catch (RemoteException e) { } |
| mCurrentVibration = null; |
| } |
| } |
| |
| private void unlinkVibration(Vibration vib) { |
| if (vib.mEffect instanceof VibrationEffect.Waveform) { |
| vib.mToken.unlinkToDeath(vib, 0); |
| } |
| } |
| |
| private void updateVibrators() { |
| synchronized (mLock) { |
| boolean devicesUpdated = updateInputDeviceVibratorsLocked(); |
| boolean lowPowerModeUpdated = updateLowPowerModeLocked(); |
| |
| if (devicesUpdated || lowPowerModeUpdated) { |
| // If the state changes out from under us then just reset. |
| doCancelVibrateLocked(); |
| } |
| } |
| } |
| |
| private boolean updateInputDeviceVibratorsLocked() { |
| boolean changed = false; |
| boolean vibrateInputDevices = false; |
| try { |
| vibrateInputDevices = Settings.System.getIntForUser( |
| mContext.getContentResolver(), |
| Settings.System.VIBRATE_INPUT_DEVICES, UserHandle.USER_CURRENT) > 0; |
| } catch (SettingNotFoundException snfe) { |
| } |
| if (vibrateInputDevices != mVibrateInputDevicesSetting) { |
| changed = true; |
| mVibrateInputDevicesSetting = vibrateInputDevices; |
| } |
| |
| if (mVibrateInputDevicesSetting) { |
| if (!mInputDeviceListenerRegistered) { |
| mInputDeviceListenerRegistered = true; |
| mIm.registerInputDeviceListener(this, mH); |
| } |
| } else { |
| if (mInputDeviceListenerRegistered) { |
| mInputDeviceListenerRegistered = false; |
| mIm.unregisterInputDeviceListener(this); |
| } |
| } |
| |
| mInputDeviceVibrators.clear(); |
| if (mVibrateInputDevicesSetting) { |
| int[] ids = mIm.getInputDeviceIds(); |
| for (int i = 0; i < ids.length; i++) { |
| InputDevice device = mIm.getInputDevice(ids[i]); |
| Vibrator vibrator = device.getVibrator(); |
| if (vibrator.hasVibrator()) { |
| mInputDeviceVibrators.add(vibrator); |
| } |
| } |
| return true; |
| } |
| return changed; |
| } |
| |
| private boolean updateLowPowerModeLocked() { |
| boolean lowPowerMode = mPowerManagerInternal |
| .getLowPowerState(ServiceType.VIBRATION).batterySaverEnabled; |
| if (lowPowerMode != mLowPowerMode) { |
| mLowPowerMode = lowPowerMode; |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public void onInputDeviceAdded(int deviceId) { |
| updateVibrators(); |
| } |
| |
| @Override |
| public void onInputDeviceChanged(int deviceId) { |
| updateVibrators(); |
| } |
| |
| @Override |
| public void onInputDeviceRemoved(int deviceId) { |
| updateVibrators(); |
| } |
| |
| private boolean doVibratorExists() { |
| // For now, we choose to ignore the presence of input devices that have vibrators |
| // when reporting whether the device has a vibrator. Applications often use this |
| // information to decide whether to enable certain features so they expect the |
| // result of hasVibrator() to be constant. For now, just report whether |
| // the device has a built-in vibrator. |
| //synchronized (mInputDeviceVibrators) { |
| // return !mInputDeviceVibrators.isEmpty() || vibratorExists(); |
| //} |
| return vibratorExists(); |
| } |
| |
| private void doVibratorOn(long millis, int amplitude, int uid, int usageHint) { |
| synchronized (mInputDeviceVibrators) { |
| if (amplitude == VibrationEffect.DEFAULT_AMPLITUDE) { |
| amplitude = mDefaultVibrationAmplitude; |
| } |
| if (DEBUG) { |
| Slog.d(TAG, "Turning vibrator on for " + millis + " ms" + |
| " with amplitude " + amplitude + "."); |
| } |
| noteVibratorOnLocked(uid, millis); |
| final int vibratorCount = mInputDeviceVibrators.size(); |
| if (vibratorCount != 0) { |
| final AudioAttributes attributes = |
| new AudioAttributes.Builder().setUsage(usageHint).build(); |
| for (int i = 0; i < vibratorCount; i++) { |
| mInputDeviceVibrators.get(i).vibrate(millis, attributes); |
| } |
| } else { |
| // Note: ordering is important here! Many haptic drivers will reset their amplitude |
| // when enabled, so we always have to enable frst, then set the amplitude. |
| vibratorOn(millis); |
| doVibratorSetAmplitude(amplitude); |
| } |
| } |
| } |
| |
| private void doVibratorSetAmplitude(int amplitude) { |
| if (mSupportsAmplitudeControl) { |
| vibratorSetAmplitude(amplitude); |
| } |
| } |
| |
| private void doVibratorOff() { |
| synchronized (mInputDeviceVibrators) { |
| if (DEBUG) { |
| Slog.d(TAG, "Turning vibrator off."); |
| } |
| noteVibratorOffLocked(); |
| final int vibratorCount = mInputDeviceVibrators.size(); |
| if (vibratorCount != 0) { |
| for (int i = 0; i < vibratorCount; i++) { |
| mInputDeviceVibrators.get(i).cancel(); |
| } |
| } else { |
| vibratorOff(); |
| } |
| } |
| } |
| |
| private long doVibratorPrebakedEffectLocked(Vibration vib) { |
| synchronized (mInputDeviceVibrators) { |
| VibrationEffect.Prebaked prebaked = (VibrationEffect.Prebaked) vib.mEffect; |
| // Input devices don't support prebaked effect, so skip trying it with them. |
| final int vibratorCount = mInputDeviceVibrators.size(); |
| if (vibratorCount == 0) { |
| long timeout = vibratorPerformEffect(prebaked.getId(), EffectStrength.MEDIUM); |
| if (timeout > 0) { |
| noteVibratorOnLocked(vib.mUid, timeout); |
| return timeout; |
| } |
| } |
| if (!prebaked.shouldFallback()) { |
| return 0; |
| } |
| final int id = prebaked.getId(); |
| if (id < 0 || id >= mFallbackEffects.length || mFallbackEffects[id] == null) { |
| Slog.w(TAG, "Failed to play prebaked effect, no fallback"); |
| return 0; |
| } |
| VibrationEffect effect = mFallbackEffects[id]; |
| Vibration fallbackVib = |
| new Vibration(vib.mToken, effect, vib.mUsageHint, vib.mUid, vib.mOpPkg); |
| startVibrationInnerLocked(fallbackVib); |
| } |
| return 0; |
| } |
| |
| private void noteVibratorOnLocked(int uid, long millis) { |
| try { |
| mBatteryStatsService.noteVibratorOn(uid, millis); |
| mCurVibUid = uid; |
| } catch (RemoteException e) { |
| } |
| } |
| |
| private void noteVibratorOffLocked() { |
| if (mCurVibUid >= 0) { |
| try { |
| mBatteryStatsService.noteVibratorOff(mCurVibUid); |
| } catch (RemoteException e) { } |
| mCurVibUid = -1; |
| } |
| } |
| |
| private class VibrateThread extends Thread { |
| private final VibrationEffect.Waveform mWaveform; |
| private final int mUid; |
| private final int mUsageHint; |
| |
| private boolean mForceStop; |
| |
| VibrateThread(VibrationEffect.Waveform waveform, int uid, int usageHint) { |
| mWaveform = waveform; |
| mUid = uid; |
| mUsageHint = usageHint; |
| mTmpWorkSource.set(uid); |
| mWakeLock.setWorkSource(mTmpWorkSource); |
| } |
| |
| private long delayLocked(long duration) { |
| long durationRemaining = duration; |
| if (duration > 0) { |
| final long bedtime = duration + SystemClock.uptimeMillis(); |
| do { |
| try { |
| this.wait(durationRemaining); |
| } |
| catch (InterruptedException e) { } |
| if (mForceStop) { |
| break; |
| } |
| durationRemaining = bedtime - SystemClock.uptimeMillis(); |
| } while (durationRemaining > 0); |
| return duration - durationRemaining; |
| } |
| return 0; |
| } |
| |
| public void run() { |
| Process.setThreadPriority(Process.THREAD_PRIORITY_URGENT_DISPLAY); |
| mWakeLock.acquire(); |
| try { |
| boolean finished = playWaveform(); |
| if (finished) { |
| onVibrationFinished(); |
| } |
| } finally { |
| mWakeLock.release(); |
| } |
| } |
| |
| /** |
| * Play the waveform. |
| * |
| * @return true if it finished naturally, false otherwise (e.g. it was canceled). |
| */ |
| public boolean playWaveform() { |
| synchronized (this) { |
| final long[] timings = mWaveform.getTimings(); |
| final int[] amplitudes = mWaveform.getAmplitudes(); |
| final int len = timings.length; |
| final int repeat = mWaveform.getRepeatIndex(); |
| |
| int index = 0; |
| long onDuration = 0; |
| while (!mForceStop) { |
| if (index < len) { |
| final int amplitude = amplitudes[index]; |
| final long duration = timings[index++]; |
| if (duration <= 0) { |
| continue; |
| } |
| if (amplitude != 0) { |
| if (onDuration <= 0) { |
| // Telling the vibrator to start multiple times usually causes |
| // effects to feel "choppy" because the motor resets at every on |
| // command. Instead we figure out how long our next "on" period is |
| // going to be, tell the motor to stay on for the full duration, |
| // and then wake up to change the amplitude at the appropriate |
| // intervals. |
| onDuration = |
| getTotalOnDuration(timings, amplitudes, index - 1, repeat); |
| doVibratorOn(onDuration, amplitude, mUid, mUsageHint); |
| } else { |
| doVibratorSetAmplitude(amplitude); |
| } |
| } |
| |
| long waitTime = delayLocked(duration); |
| if (amplitude != 0) { |
| onDuration -= waitTime; |
| } |
| } else if (repeat < 0) { |
| break; |
| } else { |
| index = repeat; |
| } |
| } |
| return !mForceStop; |
| } |
| } |
| |
| public void cancel() { |
| synchronized (this) { |
| mThread.mForceStop = true; |
| mThread.notify(); |
| } |
| } |
| |
| /** |
| * Get the duration the vibrator will be on starting at startIndex until the next time it's |
| * off. |
| */ |
| private long getTotalOnDuration( |
| long[] timings, int[] amplitudes, int startIndex, int repeatIndex) { |
| int i = startIndex; |
| long timing = 0; |
| while(amplitudes[i] != 0) { |
| timing += timings[i++]; |
| if (i >= timings.length) { |
| if (repeatIndex >= 0) { |
| i = repeatIndex; |
| } else { |
| break; |
| } |
| } |
| if (i == startIndex) { |
| return 1000; |
| } |
| } |
| return timing; |
| } |
| } |
| |
| BroadcastReceiver mIntentReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) { |
| synchronized (mLock) { |
| // When the system is entering a non-interactive state, we want |
| // to cancel vibrations in case a misbehaving app has abandoned |
| // them. However it may happen that the system is currently playing |
| // haptic feedback as part of the transition. So we don't cancel |
| // system vibrations. |
| if (mCurrentVibration != null |
| && !mCurrentVibration.isSystemHapticFeedback()) { |
| doCancelVibrateLocked(); |
| } |
| } |
| } |
| } |
| }; |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; |
| |
| pw.println("Previous vibrations:"); |
| synchronized (mLock) { |
| for (VibrationInfo info : mPreviousVibrations) { |
| pw.print(" "); |
| pw.println(info.toString()); |
| } |
| } |
| } |
| |
| @Override |
| public void onShellCommand(FileDescriptor in, FileDescriptor out, FileDescriptor err, |
| String[] args, ShellCallback callback, ResultReceiver resultReceiver) |
| throws RemoteException { |
| new VibratorShellCommand(this).exec(this, in, out, err, args, callback, resultReceiver); |
| } |
| |
| private final class VibratorShellCommand extends ShellCommand { |
| |
| private static final long MAX_VIBRATION_MS = 200; |
| |
| private final IBinder mToken; |
| |
| private VibratorShellCommand(IBinder token) { |
| mToken = token; |
| } |
| |
| @Override |
| public int onCommand(String cmd) { |
| if ("vibrate".equals(cmd)) { |
| return runVibrate(); |
| } |
| return handleDefaultCommands(cmd); |
| } |
| |
| private int runVibrate() { |
| try { |
| final int zenMode = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.ZEN_MODE); |
| if (zenMode != Settings.Global.ZEN_MODE_OFF) { |
| try (PrintWriter pw = getOutPrintWriter();) { |
| pw.print("Ignoring because device is on DND mode "); |
| pw.println(DebugUtils.flagsToString(Settings.Global.class, "ZEN_MODE_", |
| zenMode)); |
| return 0; |
| } |
| } |
| } catch (SettingNotFoundException e) { |
| // ignore |
| } |
| |
| final long duration = Long.parseLong(getNextArgRequired()); |
| if (duration > MAX_VIBRATION_MS) { |
| throw new IllegalArgumentException("maximum duration is " + MAX_VIBRATION_MS); |
| } |
| String description = getNextArg(); |
| if (description == null) { |
| description = "Shell command"; |
| } |
| |
| VibrationEffect effect = |
| VibrationEffect.createOneShot(duration, VibrationEffect.DEFAULT_AMPLITUDE); |
| vibrate(Binder.getCallingUid(), description, effect, AudioAttributes.USAGE_UNKNOWN, |
| mToken); |
| return 0; |
| } |
| |
| @Override |
| public void onHelp() { |
| try (PrintWriter pw = getOutPrintWriter();) { |
| pw.println("Vibrator commands:"); |
| pw.println(" help"); |
| pw.println(" Prints this help text."); |
| pw.println(""); |
| pw.println(" vibrate duration [description]"); |
| pw.println(" Vibrates for duration milliseconds; ignored when device is on DND "); |
| pw.println(" (Do Not Disturb) mode."); |
| pw.println(""); |
| } |
| } |
| } |
| |
| } |
