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/*
* 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.ActivityManagerNative;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.UEventObserver;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.util.Log;
import android.os.ServiceManager;
import android.os.RemoteException;
import android.os.Vibrator;
import android.view.VolumePanel;
import android.media.AudioService;
import android.media.IAudioService;
import android.media.AudioManager;
import com.android.internal.app.ThemeUtils;
import java.io.FileReader;
import java.io.FileNotFoundException;
/**
* <p>RingerSwitchObserver monitors the ONE's mute switch
*/
class RingerSwitchObserver extends UEventObserver {
private static final String TAG = RingerSwitchObserver.class.getSimpleName();
private static final boolean LOG = false;
private static final String RINGER_SWITCH_UEVENT_MATCH = "DEVPATH=/devices/virtual/switch/ringer_switch";
private static final String RINGER_SWITCH_STATE_PATH = "/sys/class/switch/ringer_switch/state";
private static final String RINGER_SWITCH_NAME_PATH = "/sys/class/switch/ringer_switch/name";
private int mRingerswitchState;
private String mRingerswitchName;
private IAudioService mAudioService;
private Context mContext;
private Context mUiContext;
private VolumePanel mVolumePanel;
private final WakeLock mWakeLock; // held while there is a pending route change
public RingerSwitchObserver(Context context) {
mContext = context;
ThemeUtils.registerThemeChangeReceiver(context, new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
mUiContext = null;
}
});
PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "RingerSwitchObserver");
mWakeLock.setReferenceCounted(false);
startObserving(RINGER_SWITCH_UEVENT_MATCH);
init(); // set initial status
}
@Override
public void onUEvent(UEventObserver.UEvent event) {
if (LOG) Log.v(TAG, "Ringerswitch UEVENT: " + event.toString());
try {
update(event.get("SWITCH_NAME"), Integer.parseInt(event.get("SWITCH_STATE")));
} catch (NumberFormatException e) {
Log.e(TAG, "Could not parse switch state from event " + event);
}
}
private synchronized final void init() {
char[] buffer = new char[1024];
String newName = mRingerswitchName;
int newState = mRingerswitchState;
try {
FileReader file = new FileReader(RINGER_SWITCH_STATE_PATH);
int len = file.read(buffer, 0, 1024);
newState = Integer.valueOf((new String(buffer, 0, len)).trim());
file = new FileReader(RINGER_SWITCH_NAME_PATH);
len = file.read(buffer, 0, 1024);
newName = new String(buffer, 0, len).trim();
} catch (FileNotFoundException e) {
Log.w(TAG, "This kernel does not have ringer switch support");
return;
} catch (Exception e) {
Log.e(TAG, "" , e);
}
mAudioService = IAudioService.Stub.asInterface(ServiceManager.checkService(Context.AUDIO_SERVICE));
}
private synchronized final VolumePanel getVolumePanel() {
if (mUiContext == null || mVolumePanel == null) {
if (mUiContext == null) {
mUiContext = ThemeUtils.createUiContext(mContext);
}
final Context context = mUiContext != null ? mUiContext : mContext;
mVolumePanel = new VolumePanel(mContext, (AudioService) mAudioService);
}
return mVolumePanel;
}
private synchronized final void update(String newName, int newState) {
if (newName != mRingerswitchName || newState != mRingerswitchState) {
boolean isRingerOn = (newState == 0 && mRingerswitchState == 1);
mRingerswitchName = newName;
mRingerswitchState = newState;
try {
if (isRingerOn) {
//Log.w(TAG,"Got ringer on");
mAudioService.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
} else {
//Log.w(TAG,"Got ringer off");
AudioManager mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
boolean vibrateSetting = mAudioManager.getVibrateSetting(AudioManager.VIBRATE_TYPE_RINGER) == AudioManager.VIBRATE_SETTING_ON;
// We probably lowered the volume on the way "down", so
// raise it a notch before muting
mAudioService.adjustStreamVolume(AudioManager.STREAM_RING, AudioManager.ADJUST_RAISE, 0 );
mAudioService.setRingerMode(vibrateSetting ? AudioManager.RINGER_MODE_VIBRATE : AudioManager.RINGER_MODE_SILENT);
}
// Raise UI
getVolumePanel().postVolumeChanged(AudioManager.STREAM_RING,AudioManager.FLAG_SHOW_UI | AudioManager.FLAG_VIBRATE);
} catch (RemoteException e) {
}
}
}
}
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