blob: 7032707d9f4fb9f29470cc667132f1afe27f1a41 [file] [log] [blame]
/*
* Copyright (C) 2012 Google Inc.
*/
/**
* Bluetooth Handset StateMachine
* (Disconnected)
* | ^
* CONNECT | | DISCONNECTED
* V |
* (Pending)
* | ^
* CONNECTED | | CONNECT
* V |
* (Connected)
* | ^
* CONNECT_AUDIO | | DISCONNECT_AUDIO
* V |
* (AudioOn)
*/
package com.android.bluetooth.hfp;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothHeadset;
import android.bluetooth.BluetoothProfile;
import android.bluetooth.BluetoothUuid;
import android.bluetooth.IBluetooth;
import android.bluetooth.IBluetoothHeadsetPhone;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.media.AudioManager;
import android.net.Uri;
import android.os.IBinder;
import android.os.Message;
import android.os.ParcelUuid;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.telephony.PhoneNumberUtils;
import android.util.Log;
import com.android.bluetooth.Utils;
import com.android.internal.util.IState;
import com.android.internal.util.State;
import com.android.internal.util.StateMachine;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
final class HeadsetStateMachine extends StateMachine {
private static final String TAG = "HeadsetStateMachine";
private static final boolean DBG = true;
static final int CONNECT = 1;
static final int DISCONNECT = 2;
static final int CONNECT_AUDIO = 3;
static final int DISCONNECT_AUDIO = 4;
static final int VOICE_RECOGNITION_START = 5;
static final int VOICE_RECOGNITION_STOP = 6;
// message.obj is an intent AudioManager.VOLUME_CHANGED_ACTION
// EXTRA_VOLUME_STREAM_TYPE is STREAM_BLUETOOTH_SCO
static final int INTENT_SCO_VOLUME_CHANGED = 7;
static final int SET_MIC_VOLUME = 8;
static final int CALL_STATE_CHANGED = 9;
static final int INTENT_BATTERY_CHANGED = 10;
static final int DEVICE_STATE_CHANGED = 11;
static final int ROAM_CHANGED = 12;
static final int SEND_CCLC_RESPONSE = 13;
private static final int STACK_EVENT = 101;
private static final int DIALING_OUT_TIMEOUT = 102;
private static final int CONNECT_TIMEOUT = 201;
private static final int DIALING_OUT_TIMEOUT_VALUE = 10000;
private static final ParcelUuid[] HEADSET_UUIDS = {
BluetoothUuid.HSP,
BluetoothUuid.Handsfree,
};
private Disconnected mDisconnected;
private Pending mPending;
private Connected mConnected;
private AudioOn mAudioOn;
private Context mContext;
private boolean mVoiceRecognitionStarted = false;
private boolean mDialingOut = false;
private AudioManager mAudioManager;
private AtPhonebook mPhonebook;
private HeadsetPhoneState mPhoneState;
private int mAudioState;
private BluetoothAdapter mAdapter;
private IBluetooth mAdapterService;
private IBluetoothHeadsetPhone mPhoneProxy;
// mCurrentDevice is the device connected before the state changes
// mTargetDevice is the device to be connected
// mIncomingDevice is the device connecting to us, valid only in Pending state
// when mIncomingDevice is not null, both mCurrentDevice
// and mTargetDevice are null
// when either mCurrentDevice or mTargetDevice is not null,
// mIncomingDevice is null
// Stable states
// No connection, Disconnected state
// both mCurrentDevice and mTargetDevice are null
// Connected, Connected state
// mCurrentDevice is not null, mTargetDevice is null
// Interim states
// Connecting to a device, Pending
// mCurrentDevice is null, mTargetDevice is not null
// Disconnecting device, Connecting to new device
// Pending
// Both mCurrentDevice and mTargetDevice are not null
// Disconnecting device Pending
// mCurrentDevice is not null, mTargetDevice is null
// Incoming connections Pending
// Both mCurrentDevice and mTargetDevice are null
private BluetoothDevice mCurrentDevice = null;
private BluetoothDevice mTargetDevice = null;
private BluetoothDevice mIncomingDevice = null;
static {
classInitNative();
}
HeadsetStateMachine(Context context) {
super(TAG);
mContext = context;
mVoiceRecognitionStarted = false;
mDialingOut = false;
mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
mPhonebook = new AtPhonebook(mContext);
mPhoneState = new HeadsetPhoneState(context, this);
mAudioState = BluetoothHeadset.STATE_AUDIO_DISCONNECTED;
mAdapter = BluetoothAdapter.getDefaultAdapter();
mAdapterService = IBluetooth.Stub.asInterface(ServiceManager.getService("bluetooth"));
if (!context.bindService(new Intent(IBluetoothHeadsetPhone.class.getName()),
mConnection, 0)) {
Log.e(TAG, "Could not bind to Bluetooth Headset Phone Service");
}
initializeNativeDataNative();
mDisconnected = new Disconnected();
mPending = new Pending();
mConnected = new Connected();
mAudioOn = new AudioOn();
addState(mDisconnected);
addState(mPending);
addState(mConnected);
addState(mAudioOn);
setInitialState(mDisconnected);
}
private class Disconnected extends State {
@Override
public void enter() {
log("Enter Disconnected: " + getCurrentMessage().what);
mPhoneState.listenForPhoneState(false);
}
@Override
public boolean processMessage(Message message) {
log("Disconnected process message: " + message.what);
if (DBG) {
if (mCurrentDevice != null || mTargetDevice != null || mIncomingDevice != null) {
log("ERROR: current, target, or mIncomingDevice not null in Disconnected");
return NOT_HANDLED;
}
}
boolean retValue = HANDLED;
switch(message.what) {
case CONNECT:
BluetoothDevice device = (BluetoothDevice) message.obj;
broadcastConnectionState(device, BluetoothProfile.STATE_CONNECTING,
BluetoothProfile.STATE_DISCONNECTED);
if (!connectHfpNative(getByteAddress(device)) ) {
broadcastConnectionState(device, BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_CONNECTING);
break;
}
synchronized (HeadsetStateMachine.this) {
mTargetDevice = device;
transitionTo(mPending);
}
// TODO(BT) remove CONNECT_TIMEOUT when the stack
// sends back events consistently
sendMessageDelayed(CONNECT_TIMEOUT, 30000);
break;
case DISCONNECT:
// ignore
break;
case INTENT_BATTERY_CHANGED:
processIntentBatteryChanged((Intent) message.obj);
break;
case ROAM_CHANGED:
processRoamChanged((Boolean) message.obj);
break;
case CALL_STATE_CHANGED:
processCallState((HeadsetCallState) message.obj);
break;
case STACK_EVENT:
StackEvent event = (StackEvent) message.obj;
switch (event.type) {
case EVENT_TYPE_CONNECTION_STATE_CHANGED:
processConnectionEvent(event.valueInt, event.device);
break;
default:
Log.e(TAG, "Unexpected stack event: " + event.type);
break;
}
break;
default:
return NOT_HANDLED;
}
return retValue;
}
@Override
public void exit() {
log("Exit Disconnected: " + getCurrentMessage().what);
mPhoneState.listenForPhoneState(true);
}
// in Disconnected state
private void processConnectionEvent(int state, BluetoothDevice device) {
switch (state) {
case HeadsetHalConstants.CONNECTION_STATE_DISCONNECTED:
Log.w(TAG, "Ignore HF DISCONNECTED event, device: " + device);
break;
case HeadsetHalConstants.CONNECTION_STATE_CONNECTING:
// TODO(BT) Assume it's incoming connection
// Do we need to check priority and accept/reject accordingly?
broadcastConnectionState(device, BluetoothProfile.STATE_CONNECTING,
BluetoothProfile.STATE_DISCONNECTED);
synchronized (HeadsetStateMachine.this) {
mIncomingDevice = device;
transitionTo(mPending);
}
break;
case HeadsetHalConstants.CONNECTION_STATE_CONNECTED:
Log.w(TAG, "HFP Connected from Disconnected state");
broadcastConnectionState(device, BluetoothProfile.STATE_CONNECTED,
BluetoothProfile.STATE_DISCONNECTED);
synchronized (HeadsetStateMachine.this) {
mCurrentDevice = device;
transitionTo(mConnected);
}
break;
case HeadsetHalConstants.CONNECTION_STATE_DISCONNECTING:
Log.w(TAG, "Ignore HF DISCONNECTING event, device: " + device);
break;
default:
Log.e(TAG, "Incorrect state: " + state);
break;
}
}
}
private class Pending extends State {
@Override
public void enter() {
log("Enter Pending: " + getCurrentMessage().what);
}
@Override
public boolean processMessage(Message message) {
log("Pending process message: " + message.what);
boolean retValue = HANDLED;
switch(message.what) {
case CONNECT:
deferMessage(message);
break;
case CONNECT_TIMEOUT:
onConnectionStateChanged(HeadsetHalConstants.CONNECTION_STATE_DISCONNECTED,
getByteAddress(mTargetDevice));
break;
case DISCONNECT:
BluetoothDevice device = (BluetoothDevice) message.obj;
if (mCurrentDevice != null && mTargetDevice != null &&
mTargetDevice.equals(device) ) {
// cancel connection to the mTargetDevice
broadcastConnectionState(device, BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_CONNECTING);
synchronized (HeadsetStateMachine.this) {
mTargetDevice = null;
}
} else {
deferMessage(message);
}
break;
case INTENT_BATTERY_CHANGED:
processIntentBatteryChanged((Intent) message.obj);
break;
case ROAM_CHANGED:
processRoamChanged((Boolean) message.obj);
break;
case CALL_STATE_CHANGED:
processCallState((HeadsetCallState) message.obj);
break;
case STACK_EVENT:
StackEvent event = (StackEvent) message.obj;
switch (event.type) {
case EVENT_TYPE_CONNECTION_STATE_CHANGED:
removeMessages(CONNECT_TIMEOUT);
processConnectionEvent(event.valueInt, event.device);
break;
default:
Log.e(TAG, "Unexpected event: " + event.type);
break;
}
break;
default:
return NOT_HANDLED;
}
return retValue;
}
// in Pending state
private void processConnectionEvent(int state, BluetoothDevice device) {
switch (state) {
case HeadsetHalConstants.CONNECTION_STATE_DISCONNECTED:
if ((mCurrentDevice != null) && mCurrentDevice.equals(device)) {
broadcastConnectionState(mCurrentDevice,
BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_DISCONNECTING);
synchronized (HeadsetStateMachine.this) {
mCurrentDevice = null;
}
if (mTargetDevice != null) {
if (!connectHfpNative(getByteAddress(mTargetDevice))) {
broadcastConnectionState(mTargetDevice,
BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_CONNECTING);
synchronized (HeadsetStateMachine.this) {
mTargetDevice = null;
transitionTo(mDisconnected);
}
}
} else {
synchronized (HeadsetStateMachine.this) {
mIncomingDevice = null;
transitionTo(mDisconnected);
}
}
} else if (mTargetDevice != null && mTargetDevice.equals(device)) {
// outgoing connection failed
broadcastConnectionState(mTargetDevice, BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_CONNECTING);
synchronized (HeadsetStateMachine.this) {
mTargetDevice = null;
transitionTo(mDisconnected);
}
} else if (mIncomingDevice != null && mIncomingDevice.equals(device)) {
broadcastConnectionState(mIncomingDevice,
BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_CONNECTING);
synchronized (HeadsetStateMachine.this) {
mIncomingDevice = null;
transitionTo(mDisconnected);
}
} else {
Log.e(TAG, "Unknown device Disconnected: " + device);
}
break;
case HeadsetHalConstants.CONNECTION_STATE_CONNECTED:
if ((mCurrentDevice != null) && mCurrentDevice.equals(device)) {
// disconnection failed
broadcastConnectionState(mCurrentDevice, BluetoothProfile.STATE_CONNECTED,
BluetoothProfile.STATE_DISCONNECTING);
if (mTargetDevice != null) {
broadcastConnectionState(mTargetDevice, BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_CONNECTING);
}
synchronized (HeadsetStateMachine.this) {
mTargetDevice = null;
transitionTo(mConnected);
}
} else if (mTargetDevice != null && mTargetDevice.equals(device)) {
broadcastConnectionState(mTargetDevice, BluetoothProfile.STATE_CONNECTED,
BluetoothProfile.STATE_CONNECTING);
synchronized (HeadsetStateMachine.this) {
mCurrentDevice = mTargetDevice;
mTargetDevice = null;
transitionTo(mConnected);
}
} else if (mIncomingDevice != null && mIncomingDevice.equals(device)) {
broadcastConnectionState(mIncomingDevice, BluetoothProfile.STATE_CONNECTED,
BluetoothProfile.STATE_CONNECTING);
synchronized (HeadsetStateMachine.this) {
mCurrentDevice = mIncomingDevice;
mIncomingDevice = null;
transitionTo(mConnected);
}
} else {
Log.e(TAG, "Unknown device Connected: " + device);
// something is wrong here, but sync our state with stack
broadcastConnectionState(device, BluetoothProfile.STATE_CONNECTED,
BluetoothProfile.STATE_DISCONNECTED);
synchronized (HeadsetStateMachine.this) {
mCurrentDevice = device;
mTargetDevice = null;
mIncomingDevice = null;
transitionTo(mConnected);
}
}
break;
case HeadsetHalConstants.CONNECTION_STATE_CONNECTING:
if ((mCurrentDevice != null) && mCurrentDevice.equals(device)) {
log("current device tries to connect back");
// TODO(BT) ignore or reject
} else if (mTargetDevice != null && mTargetDevice.equals(device)) {
// The stack is connecting to target device or
// there is an incoming connection from the target device at the same time
// we already broadcasted the intent, doing nothing here
if (DBG) {
log("Stack and target device are connecting");
}
}
else if (mIncomingDevice != null && mIncomingDevice.equals(device)) {
Log.e(TAG, "Another connecting event on the incoming device");
} else {
// We get an incoming connecting request while Pending
// TODO(BT) is stack handing this case? let's ignore it for now
log("Incoming connection while pending, ignore");
}
break;
case HeadsetHalConstants.CONNECTION_STATE_DISCONNECTING:
if ((mCurrentDevice != null) && mCurrentDevice.equals(device)) {
// we already broadcasted the intent, doing nothing here
if (DBG) {
log("stack is disconnecting mCurrentDevice");
}
} else if (mTargetDevice != null && mTargetDevice.equals(device)) {
Log.e(TAG, "TargetDevice is getting disconnected");
} else if (mIncomingDevice != null && mIncomingDevice.equals(device)) {
Log.e(TAG, "IncomingDevice is getting disconnected");
} else {
Log.e(TAG, "Disconnecting unknow device: " + device);
}
break;
default:
Log.e(TAG, "Incorrect state: " + state);
break;
}
}
}
private class Connected extends State {
@Override
public void enter() {
log("Enter Connected: " + getCurrentMessage().what);
if (isInCall()) {
sendMessage(CONNECT_AUDIO);
}
}
@Override
public boolean processMessage(Message message) {
log("Connected process message: " + message.what);
if (DBG) {
if (mCurrentDevice == null) {
log("ERROR: mCurrentDevice is null in Connected");
return NOT_HANDLED;
}
}
boolean retValue = HANDLED;
switch(message.what) {
case CONNECT:
{
BluetoothDevice device = (BluetoothDevice) message.obj;
if (mCurrentDevice.equals(device)) {
break;
}
broadcastConnectionState(device, BluetoothProfile.STATE_CONNECTING,
BluetoothProfile.STATE_DISCONNECTED);
if (!disconnectHfpNative(getByteAddress(mCurrentDevice))) {
broadcastConnectionState(device, BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_CONNECTING);
break;
}
synchronized (HeadsetStateMachine.this) {
mTargetDevice = device;
transitionTo(mPending);
}
}
break;
case DISCONNECT:
{
BluetoothDevice device = (BluetoothDevice) message.obj;
if (!mCurrentDevice.equals(device)) {
break;
}
broadcastConnectionState(device, BluetoothProfile.STATE_DISCONNECTING,
BluetoothProfile.STATE_CONNECTED);
if (!disconnectHfpNative(getByteAddress(device))) {
broadcastConnectionState(device, BluetoothProfile.STATE_CONNECTED,
BluetoothProfile.STATE_DISCONNECTED);
break;
}
transitionTo(mPending);
}
break;
case CONNECT_AUDIO:
// TODO(BT) when failure, broadcast audio connecting to disconnected intent
// check if device matches mCurrentDevice
connectAudioNative(getByteAddress(mCurrentDevice));
break;
case VOICE_RECOGNITION_START:
// TODO(BT) connect audio and do voice recognition in AudioOn state
break;
case CALL_STATE_CHANGED:
processCallState((HeadsetCallState) message.obj);
break;
case INTENT_BATTERY_CHANGED:
processIntentBatteryChanged((Intent) message.obj);
break;
case ROAM_CHANGED:
processRoamChanged((Boolean) message.obj);
break;
case DEVICE_STATE_CHANGED:
processDeviceStateChanged((HeadsetDeviceState) message.obj);
break;
case SEND_CCLC_RESPONSE:
processSendClccResponse((HeadsetClccResponse) message.obj);
break;
case DIALING_OUT_TIMEOUT:
if (mDialingOut) {
mDialingOut= false;
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_ERROR);
}
break;
case STACK_EVENT:
StackEvent event = (StackEvent) message.obj;
switch (event.type) {
case EVENT_TYPE_CONNECTION_STATE_CHANGED:
processConnectionEvent(event.valueInt, event.device);
break;
case EVENT_TYPE_AUDIO_STATE_CHANGED:
processAudioEvent(event.valueInt, event.device);
break;
case EVENT_TYPE_ANSWER_CALL:
// TODO(BT) could answer call happen on Connected state?
processAnswerCall();
break;
case EVENT_TYPE_HANGUP_CALL:
// TODO(BT) could hangup call happen on Connected state?
processHangupCall();
break;
case EVENT_TYPE_VOLUME_CHANGED:
processVolumeEvent(event.valueInt, event.valueInt2);
break;
case EVENT_TYPE_DIAL_CALL:
processDialCall(event.valueString);
break;
case EVENT_TYPE_SEND_DTMF:
processSendDtmf(event.valueInt);
break;
case EVENT_TYPE_AT_CHLD:
processAtChld(event.valueInt);
break;
case EVENT_TYPE_SUBSCRIBER_NUMBER_REQUEST:
processSubscriberNumberRequest();
break;
case EVENT_TYPE_AT_CIND:
processAtCind();
break;
case EVENT_TYPE_AT_COPS:
processAtCops();
break;
case EVENT_TYPE_AT_CLCC:
processAtClcc();
break;
case EVENT_TYPE_UNKNOWN_AT:
processUnknownAt(event.valueString);
break;
case EVENT_TYPE_KEY_PRESSED:
processKeyPressed();
break;
default:
Log.e(TAG, "Unknown stack event: " + event.type);
break;
}
break;
default:
return NOT_HANDLED;
}
return retValue;
}
// in Connected state
private void processConnectionEvent(int state, BluetoothDevice device) {
switch (state) {
case HeadsetHalConstants.CONNECTION_STATE_DISCONNECTED:
if (mCurrentDevice.equals(device)) {
broadcastConnectionState(mCurrentDevice, BluetoothProfile.STATE_DISCONNECTED,
BluetoothProfile.STATE_CONNECTED);
synchronized (HeadsetStateMachine.this) {
mCurrentDevice = null;
transitionTo(mDisconnected);
}
} else {
Log.e(TAG, "Disconnected from unknown device: " + device);
}
break;
default:
Log.e(TAG, "Connection State Device: " + device + " bad state: " + state);
break;
}
}
// in Connected state
private void processAudioEvent(int state, BluetoothDevice device) {
if (!mCurrentDevice.equals(device)) {
Log.e(TAG, "Audio changed on disconnected device: " + device);
return;
}
switch (state) {
case HeadsetHalConstants.AUDIO_STATE_CONNECTED:
// TODO(BT) should I save the state for next broadcast as the prevState?
mAudioState = BluetoothHeadset.STATE_AUDIO_CONNECTED;
mAudioManager.setBluetoothScoOn(true);
broadcastAudioState(device, BluetoothHeadset.STATE_AUDIO_CONNECTED,
BluetoothHeadset.STATE_AUDIO_CONNECTING);
transitionTo(mAudioOn);
break;
case HeadsetHalConstants.AUDIO_STATE_CONNECTING:
mAudioState = BluetoothHeadset.STATE_AUDIO_CONNECTING;
broadcastAudioState(device, BluetoothHeadset.STATE_AUDIO_CONNECTING,
BluetoothHeadset.STATE_AUDIO_DISCONNECTED);
break;
// TODO(BT) process other states
default:
Log.e(TAG, "Audio State Device: " + device + " bad state: " + state);
break;
}
}
}
private class AudioOn extends State {
// Audio parameters
private static final String HEADSET_NAME = "bt_headset_name";
private static final String HEADSET_NREC = "bt_headset_nrec";
@Override
public void enter() {
log("Enter Audio: " + getCurrentMessage().what);
mAudioManager.setParameters(HEADSET_NAME + "=" + getCurrentDeviceName() + ";" +
HEADSET_NREC + "=on");
}
@Override
public boolean processMessage(Message message) {
log("AudioOn process message: " + message.what);
if (DBG) {
if (mCurrentDevice == null) {
log("ERROR: mCurrentDevice is null in AudioOn");
return NOT_HANDLED;
}
}
boolean retValue = HANDLED;
switch(message.what) {
case DISCONNECT_AUDIO:
// TODO(BT) when failure broadcast a audio disconnecting to connected intent
// check if device matches mCurrentDevice
disconnectAudioNative(getByteAddress(mCurrentDevice));
break;
case VOICE_RECOGNITION_START:
// TODO(BT) should we check if device matches mCurrentDevice?
startVoiceRecognitionNative();
break;
case VOICE_RECOGNITION_STOP:
stopVoiceRecognitionNative();
break;
case INTENT_SCO_VOLUME_CHANGED:
processIntentScoVolume((Intent) message.obj);
break;
case CALL_STATE_CHANGED:
processCallState((HeadsetCallState) message.obj);
break;
case INTENT_BATTERY_CHANGED:
processIntentBatteryChanged((Intent) message.obj);
break;
case ROAM_CHANGED:
processRoamChanged((Boolean) message.obj);
break;
case DEVICE_STATE_CHANGED:
processDeviceStateChanged((HeadsetDeviceState) message.obj);
break;
case SEND_CCLC_RESPONSE:
processSendClccResponse((HeadsetClccResponse) message.obj);
break;
case DIALING_OUT_TIMEOUT:
if (mDialingOut) {
mDialingOut= false;
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_ERROR);
}
break;
case STACK_EVENT:
StackEvent event = (StackEvent) message.obj;
switch (event.type) {
case EVENT_TYPE_AUDIO_STATE_CHANGED:
processAudioEvent(event.valueInt, event.device);
break;
case EVENT_TYPE_VR_STATE_CHANGED:
processVrEvent(event.valueInt);
break;
case EVENT_TYPE_ANSWER_CALL:
processAnswerCall();
break;
case EVENT_TYPE_HANGUP_CALL:
processHangupCall();
break;
case EVENT_TYPE_VOLUME_CHANGED:
processVolumeEvent(event.valueInt, event.valueInt2);
break;
case EVENT_TYPE_DIAL_CALL:
processDialCall(event.valueString);
break;
case EVENT_TYPE_SEND_DTMF:
processSendDtmf(event.valueInt);
break;
case EVENT_TYPE_NOICE_REDUCTION:
processNoiceReductionEvent(event.valueInt);
break;
case EVENT_TYPE_AT_CHLD:
processAtChld(event.valueInt);
break;
case EVENT_TYPE_SUBSCRIBER_NUMBER_REQUEST:
processSubscriberNumberRequest();
break;
case EVENT_TYPE_AT_CIND:
processAtCind();
break;
case EVENT_TYPE_AT_COPS:
processAtCops();
break;
case EVENT_TYPE_AT_CLCC:
processAtClcc();
break;
case EVENT_TYPE_UNKNOWN_AT:
processUnknownAt(event.valueString);
break;
case EVENT_TYPE_KEY_PRESSED:
processKeyPressed();
break;
default:
Log.e(TAG, "Unknown stack event: " + event.type);
break;
}
break;
default:
return NOT_HANDLED;
}
return retValue;
}
// in AudioOn state
private void processAudioEvent(int state, BluetoothDevice device) {
if (!mCurrentDevice.equals(device)) {
Log.e(TAG, "Audio changed on disconnected device: " + device);
return;
}
switch (state) {
case HeadsetHalConstants.AUDIO_STATE_DISCONNECTED:
mAudioState = BluetoothHeadset.STATE_AUDIO_DISCONNECTED;
mAudioManager.setBluetoothScoOn(false);
broadcastAudioState(device, BluetoothHeadset.STATE_AUDIO_DISCONNECTED,
BluetoothHeadset.STATE_AUDIO_CONNECTED);
transitionTo(mConnected);
break;
case HeadsetHalConstants.AUDIO_STATE_DISCONNECTING:
// TODO(BT) adding STATE_AUDIO_DISCONNECTING in BluetoothHeadset?
//broadcastAudioState(device, BluetoothHeadset.STATE_AUDIO_DISCONNECTING,
// BluetoothHeadset.STATE_AUDIO_CONNECTED);
break;
default:
Log.e(TAG, "Audio State Device: " + device + " bad state: " + state);
break;
}
}
private void processVrEvent(int state) {
if (state == HeadsetHalConstants.VR_STATE_STARTED) {
mVoiceRecognitionStarted = true;
// TODO(BT) should we send out Intent.ACTION_VOICE_COMMAND intent
// and do expectVoiceRecognition, acquire wake lock etc
} else if (state == HeadsetHalConstants.VR_STATE_STOPPED) {
mVoiceRecognitionStarted = false;
} else {
Log.e(TAG, "Bad Voice Recognition state: " + state);
}
}
// enable 1 enable noice reduction
// 0 disable noice reduction
private void processNoiceReductionEvent(int enable) {
if (enable == 1) {
mAudioManager.setParameters(HEADSET_NREC + "=on");
} else {
mAudioManager.setParameters(HEADSET_NREC + "off");
}
}
private void processIntentScoVolume(Intent intent) {
int volumeValue = intent.getIntExtra(AudioManager.EXTRA_VOLUME_STREAM_VALUE, 0);
setVolumeNative(HeadsetHalConstants.VOLUME_TYPE_SPK, volumeValue);
}
}
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
if (DBG) Log.d(TAG, "Proxy object connected");
mPhoneProxy = IBluetoothHeadsetPhone.Stub.asInterface(service);
}
public void onServiceDisconnected(ComponentName className) {
if (DBG) Log.d(TAG, "Proxy object disconnected");
mPhoneProxy = null;
}
};
// HFP Connection state of the device could be changed by the state machine
// in separate thread while this method is executing.
int getConnectionState(BluetoothDevice device) {
if (getCurrentState() == mDisconnected) {
return BluetoothProfile.STATE_DISCONNECTED;
}
synchronized (this) {
IState currentState = getCurrentState();
if (currentState == mPending) {
if ((mTargetDevice != null) && mTargetDevice.equals(device)) {
return BluetoothProfile.STATE_CONNECTING;
}
if ((mCurrentDevice != null) && mCurrentDevice.equals(device)) {
return BluetoothProfile.STATE_DISCONNECTING;
}
if ((mIncomingDevice != null) && mIncomingDevice.equals(device)) {
return BluetoothProfile.STATE_CONNECTING; // incoming connection
}
return BluetoothProfile.STATE_DISCONNECTED;
}
if (currentState == mConnected || currentState == mAudioOn) {
if (mCurrentDevice.equals(device)) {
return BluetoothProfile.STATE_CONNECTED;
}
return BluetoothProfile.STATE_DISCONNECTED;
} else {
Log.e(TAG, "Bad currentState: " + currentState);
return BluetoothProfile.STATE_DISCONNECTED;
}
}
}
List<BluetoothDevice> getConnectedDevices() {
List<BluetoothDevice> devices = new ArrayList<BluetoothDevice>();
synchronized(this) {
if (isConnected()) {
devices.add(mCurrentDevice);
}
}
return devices;
}
boolean isAudioOn() {
return (getCurrentState() == mAudioOn);
}
boolean isAudioConnected(BluetoothDevice device) {
synchronized(this) {
if (getCurrentState() == mAudioOn && mCurrentDevice.equals(device)) {
return true;
}
}
return false;
}
int getAudioState(BluetoothDevice device) {
synchronized(this) {
if (mCurrentDevice == null || !mCurrentDevice.equals(device)) {
return BluetoothHeadset.STATE_AUDIO_DISCONNECTED;
}
}
return mAudioState;
}
List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) {
List<BluetoothDevice> deviceList = new ArrayList<BluetoothDevice>();
Set<BluetoothDevice> bondedDevices = mAdapter.getBondedDevices();
int connectionState;
synchronized (this) {
for (BluetoothDevice device : bondedDevices) {
ParcelUuid[] featureUuids = device.getUuids();
if (!BluetoothUuid.containsAnyUuid(featureUuids, HEADSET_UUIDS)) {
continue;
}
connectionState = getConnectionState(device);
for(int i = 0; i < states.length; i++) {
if (connectionState == states[i]) {
deviceList.add(device);
}
}
}
}
return deviceList;
}
// This method does not check for error conditon (newState == prevState)
private void broadcastConnectionState(BluetoothDevice device, int newState, int prevState) {
Intent intent = new Intent(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
intent.putExtra(BluetoothProfile.EXTRA_PREVIOUS_STATE, prevState);
intent.putExtra(BluetoothProfile.EXTRA_STATE, newState);
intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
mContext.sendBroadcast(intent, HeadsetService.BLUETOOTH_PERM);
if (DBG) log("Connection state " + device + ": " + prevState + "->" + newState);
try {
mAdapterService.sendConnectionStateChange(device, BluetoothProfile.HEADSET, newState,
prevState);
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
}
}
private void broadcastAudioState(BluetoothDevice device, int newState, int prevState) {
Intent intent = new Intent(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED);
intent.putExtra(BluetoothProfile.EXTRA_PREVIOUS_STATE, prevState);
intent.putExtra(BluetoothProfile.EXTRA_STATE, newState);
intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
mContext.sendBroadcast(intent, HeadsetService.BLUETOOTH_PERM);
if (DBG) log("Audio state " + device + ": " + prevState + "->" + newState);
}
private void processAnswerCall() {
if (mPhoneProxy != null) {
try {
mPhoneProxy.answerCall();
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
}
} else {
Log.e(TAG, "Handsfree phone proxy null for answering call");
}
}
private void processHangupCall() {
if (mPhoneProxy != null) {
try {
mPhoneProxy.hangupCall();
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
}
} else {
Log.e(TAG, "Handsfree phone proxy null for hanging up call");
}
}
private void processDialCall(String number) {
String dialNumber;
if (number == null) {
dialNumber = mPhonebook.getLastDialledNumber();
if (dialNumber == null) {
if (DBG) log("processDialCall, last dial number null");
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_ERROR);
return;
}
} else if (number.charAt(0) == '>') {
// Yuck - memory dialling requested.
// Just dial last number for now
if (number.startsWith(">9999")) { // for PTS test
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_ERROR);
return;
}
dialNumber = mPhonebook.getLastDialledNumber();
} else {
dialNumber = PhoneNumberUtils.convertPreDial(number);
}
// TODO(BT) do we need to terminate virtual call first
// like call terminateScoUsingVirtualVoiceCall()?
Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED,
Uri.fromParts(SCHEME_TEL, dialNumber, null));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivity(intent);
// TODO(BT) continue send OK reults code after call starts
// hold wait lock, start a timer, set wait call flag
// Get call started indication from bluetooth phone
mDialingOut = true;
sendMessageDelayed(DIALING_OUT_TIMEOUT, DIALING_OUT_TIMEOUT_VALUE);
}
private void processVolumeEvent(int volumeType, int volume) {
if (volumeType == HeadsetHalConstants.VOLUME_TYPE_SPK) {
int flag = (getCurrentState() == mAudioOn) ? AudioManager.FLAG_SHOW_UI : 0;
mAudioManager.setStreamVolume(AudioManager.STREAM_BLUETOOTH_SCO, volume, flag);
} // TODO(BT) handle MIC volume change
}
private void processSendDtmf(int dtmf) {
if (mPhoneProxy != null) {
try {
mPhoneProxy.sendDtmf(dtmf);
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
}
} else {
Log.e(TAG, "Handsfree phone proxy null for sending DTMF");
}
}
private void processCallState(HeadsetCallState callState) {
mPhoneState.setNumActiveCall(callState.mNumActive);
mPhoneState.setNumHeldCall(callState.mNumHeld);
mPhoneState.setCallState(callState.mCallState);
if (mDialingOut && callState.mCallState == HeadsetHalConstants.CALL_STATE_DIALING) {
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_OK);
removeMessages(DIALING_OUT_TIMEOUT);
mDialingOut = false;
}
log("mNumActive: " + callState.mNumActive + " mNumHeld: " + callState.mNumHeld +
" mCallState: " + callState.mCallState);
log("mNumber: " + callState.mNumber + " mType: " + callState.mType);
phoneStateChangeNative(callState.mNumActive, callState.mNumHeld, callState.mCallState,
callState.mNumber, callState.mType);
}
private void processAtChld(int chld) {
if (mPhoneProxy != null) {
try {
if (mPhoneProxy.processChld(chld)) {
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_OK);
} else {
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_ERROR);
}
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_ERROR);
}
} else {
Log.e(TAG, "Handsfree phone proxy null for At+Chld");
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_ERROR);
}
}
private void processSubscriberNumberRequest() {
if (mPhoneProxy != null) {
try {
String number = mPhoneProxy.getSubscriberNumber();
if (number != null) {
atResponseStringNative("+CNUM: ,\"" + number + "\"," +
PhoneNumberUtils.toaFromString(number) + ",,4");
}
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
}
} else {
Log.e(TAG, "Handsfree phone proxy null for At+CNUM");
}
}
private void processAtCind() {
cindResponseNative(mPhoneState.getService(), mPhoneState.getNumActiveCall(),
mPhoneState.getNumHeldCall(), mPhoneState.getCallState(),
mPhoneState.getSignal(), mPhoneState.getRoam(),
mPhoneState.getBatteryCharge());
}
private void processAtCops() {
if (mPhoneProxy != null) {
try {
String operatorName = mPhoneProxy.getNetworkOperator();
if (operatorName == null) {
operatorName = "";
}
copsResponseNative(operatorName);
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
copsResponseNative("");
}
} else {
Log.e(TAG, "Handsfree phone proxy null for At+COPS");
copsResponseNative("");
}
}
private void processAtClcc() {
if (mPhoneProxy != null) {
try {
if (!mPhoneProxy.listCurrentCalls()) {
clccResponseNative(0, 0, 0, 0, false, "", 0);
}
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
clccResponseNative(0, 0, 0, 0, false, "", 0);
}
} else {
Log.e(TAG, "Handsfree phone proxy null for At+CLCC");
clccResponseNative(0, 0, 0, 0, false, "", 0);
}
}
private void processUnknownAt(String atString) {
// TODO (BT)
atResponseCodeNative(HeadsetHalConstants.AT_RESPONSE_ERROR);
}
private void processKeyPressed() {
if (mPhoneState.getCallState() == HeadsetHalConstants.CALL_STATE_INCOMING) {
if (mPhoneProxy != null) {
try {
mPhoneProxy.answerCall();
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
}
} else {
Log.e(TAG, "Handsfree phone proxy null for answering call");
}
} else if (mPhoneState.getNumActiveCall() > 0) {
if (mPhoneProxy != null) {
try {
mPhoneProxy.answerCall();
} catch (RemoteException e) {
Log.e(TAG, Log.getStackTraceString(new Throwable()));
}
} else {
Log.e(TAG, "Handsfree phone proxy null for hangup call");
}
} else {
String dialNumber = mPhonebook.getLastDialledNumber();
if (dialNumber == null) {
if (DBG) log("processKeyPressed, last dial number null");
return;
}
Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED,
Uri.fromParts(SCHEME_TEL, dialNumber, null));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivity(intent);
}
}
private void onConnectionStateChanged(int state, byte[] address) {
StackEvent event = new StackEvent(EVENT_TYPE_CONNECTION_STATE_CHANGED);
event.valueInt = state;
event.device = getDevice(address);
sendMessage(STACK_EVENT, event);
}
private void onAudioStateChanged(int state, byte[] address) {
StackEvent event = new StackEvent(EVENT_TYPE_AUDIO_STATE_CHANGED);
event.valueInt = state;
event.device = getDevice(address);
sendMessage(STACK_EVENT, event);
}
private void onVrStateChanged(int state) {
StackEvent event = new StackEvent(EVENT_TYPE_VR_STATE_CHANGED);
event.valueInt = state;
sendMessage(STACK_EVENT, event);
}
private void onAnswerCall() {
StackEvent event = new StackEvent(EVENT_TYPE_ANSWER_CALL);
sendMessage(STACK_EVENT, event);
}
private void onHangupCall() {
StackEvent event = new StackEvent(EVENT_TYPE_HANGUP_CALL);
sendMessage(STACK_EVENT, event);
}
private void onVolumeChanged(int type, int volume) {
StackEvent event = new StackEvent(EVENT_TYPE_VOLUME_CHANGED);
event.valueInt = type;
event.valueInt2 = volume;
sendMessage(STACK_EVENT, event);
}
private void onDialCall(String number) {
StackEvent event = new StackEvent(EVENT_TYPE_DIAL_CALL);
event.valueString = number;
sendMessage(STACK_EVENT, event);
}
private void onSendDtmf(int dtmf) {
StackEvent event = new StackEvent(EVENT_TYPE_SEND_DTMF);
event.valueInt = dtmf;
sendMessage(STACK_EVENT, event);
}
private void onNoiceReductionEnable(boolean enable) {
StackEvent event = new StackEvent(EVENT_TYPE_NOICE_REDUCTION);
event.valueInt = enable ? 1 : 0;
sendMessage(STACK_EVENT, event);
}
private void onAtChld(int chld) {
StackEvent event = new StackEvent(EVENT_TYPE_AT_CHLD);
event.valueInt = chld;
sendMessage(STACK_EVENT, event);
}
private void onAtCnum() {
StackEvent event = new StackEvent(EVENT_TYPE_SUBSCRIBER_NUMBER_REQUEST);
sendMessage(STACK_EVENT, event);
}
private void onAtCind() {
StackEvent event = new StackEvent(EVENT_TYPE_AT_CIND);
sendMessage(STACK_EVENT, event);
}
private void onAtCops() {
StackEvent event = new StackEvent(EVENT_TYPE_AT_COPS);
sendMessage(STACK_EVENT, event);
}
private void onAtClcc() {
StackEvent event = new StackEvent(EVENT_TYPE_AT_CLCC);
sendMessage(STACK_EVENT, event);
}
private void onUnknownAt(String atString) {
StackEvent event = new StackEvent(EVENT_TYPE_UNKNOWN_AT);
event.valueString = atString;
sendMessage(STACK_EVENT, event);
}
private void onKeyPressed() {
StackEvent event = new StackEvent(EVENT_TYPE_KEY_PRESSED);
sendMessage(STACK_EVENT, event);
}
private void processIntentBatteryChanged(Intent intent) {
int batteryLevel = intent.getIntExtra("level", -1);
int scale = intent.getIntExtra("scale", -1);
if (batteryLevel == -1 || scale == -1 || scale == 0) {
Log.e(TAG, "Bad Battery Changed intent: " + batteryLevel + "," + scale);
return;
}
batteryLevel = batteryLevel * 5 / scale;
mPhoneState.setBatteryCharge(batteryLevel);
}
private void processRoamChanged(boolean roam) {
mPhoneState.setRoam(roam ? HeadsetHalConstants.SERVICE_TYPE_ROAMING :
HeadsetHalConstants.SERVICE_TYPE_HOME);
}
private void processDeviceStateChanged(HeadsetDeviceState deviceState) {
notifyDeviceStatusNative(deviceState.mService, deviceState.mRoam, deviceState.mSignal,
deviceState.mBatteryCharge);
}
private void processSendClccResponse(HeadsetClccResponse clcc) {
clccResponseNative(clcc.mIndex, clcc.mDirection, clcc.mStatus, clcc.mMode, clcc.mMpty,
clcc.mNumber, clcc.mType);
}
private String getCurrentDeviceName() {
String defaultName = "<unknown>";
if (mCurrentDevice == null) {
return defaultName;
}
String deviceName = mCurrentDevice.getName();
if (deviceName == null) {
return defaultName;
}
return deviceName;
}
private byte[] getByteAddress(BluetoothDevice device) {
return Utils.getBytesFromAddress(device.getAddress());
}
private BluetoothDevice getDevice(byte[] address) {
return mAdapter.getRemoteDevice(Utils.getAddressStringFromByte(address));
}
private boolean isInCall() {
return mPhoneState.isInCall();
}
boolean isConnected() {
IState currentState = getCurrentState();
return (currentState == mConnected || currentState == mAudioOn);
}
private void log(String msg) {
if (DBG) {
Log.d(TAG, msg);
}
}
private static final String SCHEME_TEL = "tel";
// Event types for STACK_EVENT message
final private static int EVENT_TYPE_NONE = 0;
final private static int EVENT_TYPE_CONNECTION_STATE_CHANGED = 1;
final private static int EVENT_TYPE_AUDIO_STATE_CHANGED = 2;
final private static int EVENT_TYPE_VR_STATE_CHANGED = 3;
final private static int EVENT_TYPE_ANSWER_CALL = 4;
final private static int EVENT_TYPE_HANGUP_CALL = 5;
final private static int EVENT_TYPE_VOLUME_CHANGED = 6;
final private static int EVENT_TYPE_DIAL_CALL = 7;
final private static int EVENT_TYPE_SEND_DTMF = 8;
final private static int EVENT_TYPE_NOICE_REDUCTION = 9;
final private static int EVENT_TYPE_AT_CHLD = 10;
final private static int EVENT_TYPE_SUBSCRIBER_NUMBER_REQUEST = 11;
final private static int EVENT_TYPE_AT_CIND = 12;
final private static int EVENT_TYPE_AT_COPS = 13;
final private static int EVENT_TYPE_AT_CLCC = 14;
final private static int EVENT_TYPE_UNKNOWN_AT = 15;
final private static int EVENT_TYPE_KEY_PRESSED = 16;
private class StackEvent {
int type = EVENT_TYPE_NONE;
int valueInt = 0;
int valueInt2 = 0;
String valueString = null;
BluetoothDevice device = null;
private StackEvent(int type) {
this.type = type;
}
}
private native static void classInitNative();
private native void initializeNativeDataNative();
private native boolean connectHfpNative(byte[] address);
private native boolean disconnectHfpNative(byte[] address);
private native boolean connectAudioNative(byte[] address);
private native boolean disconnectAudioNative(byte[] address);
private native boolean startVoiceRecognitionNative();
private native boolean stopVoiceRecognitionNative();
private native boolean setVolumeNative(int volumeType, int volume);
private native boolean cindResponseNative(int service, int numActive, int numHeld,
int callState, int signal, int roam,
int batteryCharge);
private native boolean notifyDeviceStatusNative(int networkState, int serviceType, int signal,
int batteryCharge);
private native boolean atResponseCodeNative(int responseCode);
private native boolean clccResponseNative(int index, int dir, int status, int mode,
boolean mpty, String number, int type);
private native boolean copsResponseNative(String operatorName);
private native boolean atResponseStringNative(String responseString);
private native boolean phoneStateChangeNative(int numActive, int numHeld, int callState,
String number, int type);
}