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/*
* Copyright (C) 2015 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.internal.telephony;
import android.compat.annotation.UnsupportedAppUsage;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.AsyncResult;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PersistableBundle;
import android.os.Registrant;
import android.os.RegistrantList;
import android.sysprop.TelephonyProperties;
import android.telecom.TelecomManager;
import android.telephony.CarrierConfigManager;
import android.telephony.CellLocation;
import android.telephony.DisconnectCause;
import android.telephony.PhoneNumberUtils;
import android.telephony.ServiceState.RilRadioTechnology;
import android.telephony.TelephonyManager;
import android.telephony.cdma.CdmaCellLocation;
import android.telephony.gsm.GsmCellLocation;
import android.text.TextUtils;
import android.util.EventLog;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.telephony.cdma.CdmaCallWaitingNotification;
import com.android.internal.telephony.metrics.TelephonyMetrics;
import com.android.telephony.Rlog;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* {@hide}
*/
public class GsmCdmaCallTracker extends CallTracker {
private static final String LOG_TAG = "GsmCdmaCallTracker";
private static final boolean REPEAT_POLLING = false;
private static final boolean DBG_POLL = false;
private static final boolean VDBG = false;
//***** Constants
public static final int MAX_CONNECTIONS_GSM = 19; //7 allowed in GSM + 12 from IMS for SRVCC
private static final int MAX_CONNECTIONS_PER_CALL_GSM = 5; //only 5 connections allowed per call
private static final int MAX_CONNECTIONS_CDMA = 8;
private static final int MAX_CONNECTIONS_PER_CALL_CDMA = 1; //only 1 connection allowed per call
//***** Instance Variables
@VisibleForTesting
public GsmCdmaConnection[] mConnections;
private RegistrantList mVoiceCallEndedRegistrants = new RegistrantList();
private RegistrantList mVoiceCallStartedRegistrants = new RegistrantList();
// connections dropped during last poll
private ArrayList<GsmCdmaConnection> mDroppedDuringPoll =
new ArrayList<GsmCdmaConnection>(MAX_CONNECTIONS_GSM);
@UnsupportedAppUsage
public GsmCdmaCall mRingingCall = new GsmCdmaCall(this);
// A call that is ringing or (call) waiting
@UnsupportedAppUsage
public GsmCdmaCall mForegroundCall = new GsmCdmaCall(this);
@UnsupportedAppUsage
public GsmCdmaCall mBackgroundCall = new GsmCdmaCall(this);
@UnsupportedAppUsage
private GsmCdmaConnection mPendingMO;
private boolean mHangupPendingMO;
@UnsupportedAppUsage
private GsmCdmaPhone mPhone;
private boolean mDesiredMute = false; // false = mute off
@UnsupportedAppUsage
public PhoneConstants.State mState = PhoneConstants.State.IDLE;
private TelephonyMetrics mMetrics = TelephonyMetrics.getInstance();
// Following member variables are for CDMA only
private RegistrantList mCallWaitingRegistrants = new RegistrantList();
private boolean mPendingCallInEcm;
private boolean mIsInEmergencyCall;
private int mPendingCallClirMode;
private int m3WayCallFlashDelay;
/**
* Listens for Emergency Callback Mode state change intents
*/
private BroadcastReceiver mEcmExitReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(
TelephonyIntents.ACTION_EMERGENCY_CALLBACK_MODE_CHANGED)) {
boolean isInEcm = intent.getBooleanExtra(
TelephonyManager.EXTRA_PHONE_IN_ECM_STATE, false);
log("Received ACTION_EMERGENCY_CALLBACK_MODE_CHANGED isInEcm = " + isInEcm);
// If we exit ECM mode, notify all connections.
if (!isInEcm) {
// Although mConnections seems to be the place to look, it is not guaranteed
// to have all of the connections we're tracking. THe best place to look is in
// the Call objects associated with the tracker.
List<Connection> toNotify = new ArrayList<Connection>();
toNotify.addAll(mRingingCall.getConnections());
toNotify.addAll(mForegroundCall.getConnections());
toNotify.addAll(mBackgroundCall.getConnections());
if (mPendingMO != null) {
toNotify.add(mPendingMO);
}
// Notify connections that ECM mode exited.
for (Connection connection : toNotify) {
if (connection != null) {
connection.onExitedEcmMode();
}
}
}
}
}
};
//***** Events
//***** Constructors
public GsmCdmaCallTracker (GsmCdmaPhone phone) {
this.mPhone = phone;
mCi = phone.mCi;
mCi.registerForCallStateChanged(this, EVENT_CALL_STATE_CHANGE, null);
mCi.registerForOn(this, EVENT_RADIO_AVAILABLE, null);
mCi.registerForNotAvailable(this, EVENT_RADIO_NOT_AVAILABLE, null);
// Register receiver for ECM exit
IntentFilter filter = new IntentFilter();
filter.addAction(TelephonyIntents.ACTION_EMERGENCY_CALLBACK_MODE_CHANGED);
mPhone.getContext().registerReceiver(mEcmExitReceiver, filter);
updatePhoneType(true);
}
public void updatePhoneType() {
updatePhoneType(false);
}
private void updatePhoneType(boolean duringInit) {
if (!duringInit) {
reset();
pollCallsWhenSafe();
}
if (mPhone.isPhoneTypeGsm()) {
mConnections = new GsmCdmaConnection[MAX_CONNECTIONS_GSM];
mCi.unregisterForCallWaitingInfo(this);
// Prior to phone switch to GSM, if CDMA has any emergency call
// data will be in disabled state, after switching to GSM enable data.
if (mIsInEmergencyCall) {
mPhone.getDataEnabledSettings().setInternalDataEnabled(true);
}
} else {
mConnections = new GsmCdmaConnection[MAX_CONNECTIONS_CDMA];
mPendingCallInEcm = false;
mIsInEmergencyCall = false;
mPendingCallClirMode = CommandsInterface.CLIR_DEFAULT;
mPhone.setEcmCanceledForEmergency(false /*isCanceled*/);
m3WayCallFlashDelay = 0;
mCi.registerForCallWaitingInfo(this, EVENT_CALL_WAITING_INFO_CDMA, null);
}
}
private void reset() {
Rlog.d(LOG_TAG, "reset");
for (GsmCdmaConnection gsmCdmaConnection : mConnections) {
if (gsmCdmaConnection != null) {
gsmCdmaConnection.onDisconnect(DisconnectCause.ERROR_UNSPECIFIED);
gsmCdmaConnection.dispose();
}
}
if (mPendingMO != null) {
// Send the notification that the pending call was disconnected to the higher layers.
mPendingMO.onDisconnect(DisconnectCause.ERROR_UNSPECIFIED);
mPendingMO.dispose();
}
mConnections = null;
mPendingMO = null;
clearDisconnected();
}
@Override
protected void finalize() {
Rlog.d(LOG_TAG, "GsmCdmaCallTracker finalized");
}
//***** Instance Methods
//***** Public Methods
@Override
public void registerForVoiceCallStarted(Handler h, int what, Object obj) {
Registrant r = new Registrant(h, what, obj);
mVoiceCallStartedRegistrants.add(r);
// Notify if in call when registering
if (mState != PhoneConstants.State.IDLE) {
r.notifyRegistrant(new AsyncResult(null, null, null));
}
}
@Override
public void unregisterForVoiceCallStarted(Handler h) {
mVoiceCallStartedRegistrants.remove(h);
}
@Override
public void registerForVoiceCallEnded(Handler h, int what, Object obj) {
Registrant r = new Registrant(h, what, obj);
mVoiceCallEndedRegistrants.add(r);
}
@Override
public void unregisterForVoiceCallEnded(Handler h) {
mVoiceCallEndedRegistrants.remove(h);
}
public void registerForCallWaiting(Handler h, int what, Object obj) {
Registrant r = new Registrant (h, what, obj);
mCallWaitingRegistrants.add(r);
}
public void unregisterForCallWaiting(Handler h) {
mCallWaitingRegistrants.remove(h);
}
@UnsupportedAppUsage
private void fakeHoldForegroundBeforeDial() {
// We need to make a copy here, since fakeHoldBeforeDial()
// modifies the lists, and we don't want to reverse the order
ArrayList<Connection> connCopy = mForegroundCall.getConnections();
for (Connection conn : connCopy) {
GsmCdmaConnection gsmCdmaConn = (GsmCdmaConnection) conn;
gsmCdmaConn.fakeHoldBeforeDial();
}
}
//GSM
/**
* clirMode is one of the CLIR_ constants
*/
public synchronized Connection dialGsm(String dialString, int clirMode, UUSInfo uusInfo,
Bundle intentExtras)
throws CallStateException {
// note that this triggers call state changed notif
clearDisconnected();
// Check for issues which would preclude dialing and throw a CallStateException.
boolean isEmergencyCall = PhoneNumberUtils.isLocalEmergencyNumber(mPhone.getContext(),
dialString);
checkForDialIssues(isEmergencyCall);
String origNumber = dialString;
dialString = convertNumberIfNecessary(mPhone, dialString);
// The new call must be assigned to the foreground call.
// That call must be idle, so place anything that's
// there on hold
if (mForegroundCall.getState() == GsmCdmaCall.State.ACTIVE) {
// this will probably be done by the radio anyway
// but the dial might fail before this happens
// and we need to make sure the foreground call is clear
// for the newly dialed connection
switchWaitingOrHoldingAndActive();
// This is a hack to delay DIAL so that it is sent out to RIL only after
// EVENT_SWITCH_RESULT is received. We've seen failures when adding a new call to
// multi-way conference calls due to DIAL being sent out before SWITCH is processed
// TODO: setup duration metrics won't capture this
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// do nothing
}
// Fake local state so that
// a) foregroundCall is empty for the newly dialed connection
// b) hasNonHangupStateChanged remains false in the
// next poll, so that we don't clear a failed dialing call
fakeHoldForegroundBeforeDial();
}
if (mForegroundCall.getState() != GsmCdmaCall.State.IDLE) {
//we should have failed in !canDial() above before we get here
throw new CallStateException("cannot dial in current state");
}
mPendingMO = new GsmCdmaConnection(mPhone, dialString, this, mForegroundCall,
isEmergencyCall);
if (intentExtras != null) {
Rlog.d(LOG_TAG, "dialGsm - emergency dialer: " + intentExtras.getBoolean(
TelecomManager.EXTRA_IS_USER_INTENT_EMERGENCY_CALL));
mPendingMO.setHasKnownUserIntentEmergency(intentExtras.getBoolean(
TelecomManager.EXTRA_IS_USER_INTENT_EMERGENCY_CALL));
}
mHangupPendingMO = false;
mMetrics.writeRilDial(mPhone.getPhoneId(), mPendingMO, clirMode, uusInfo);
mPhone.getVoiceCallSessionStats().onRilDial(mPendingMO);
if ( mPendingMO.getAddress() == null || mPendingMO.getAddress().length() == 0
|| mPendingMO.getAddress().indexOf(PhoneNumberUtils.WILD) >= 0) {
// Phone number is invalid
mPendingMO.mCause = DisconnectCause.INVALID_NUMBER;
// handlePollCalls() will notice this call not present
// and will mark it as dropped.
pollCallsWhenSafe();
} else {
// Always unmute when initiating a new call
setMute(false);
mCi.dial(mPendingMO.getAddress(), mPendingMO.isEmergencyCall(),
mPendingMO.getEmergencyNumberInfo(), mPendingMO.hasKnownUserIntentEmergency(),
clirMode, uusInfo, obtainCompleteMessage());
}
if (mNumberConverted) {
mPendingMO.restoreDialedNumberAfterConversion(origNumber);
mNumberConverted = false;
}
updatePhoneState();
mPhone.notifyPreciseCallStateChanged();
return mPendingMO;
}
//CDMA
/**
* Handle Ecm timer to be canceled or re-started
*/
@UnsupportedAppUsage
private void handleEcmTimer(int action) {
mPhone.handleTimerInEmergencyCallbackMode(action);
}
//CDMA
/**
* Disable data call when emergency call is connected
*/
@UnsupportedAppUsage
private void disableDataCallInEmergencyCall(String dialString) {
if (PhoneNumberUtils.isLocalEmergencyNumber(mPhone.getContext(), dialString)) {
if (Phone.DEBUG_PHONE) log("disableDataCallInEmergencyCall");
setIsInEmergencyCall();
}
}
//CDMA
public void setIsInEmergencyCall() {
mIsInEmergencyCall = true;
mPhone.getDataEnabledSettings().setInternalDataEnabled(false);
mPhone.notifyEmergencyCallRegistrants(true);
mPhone.sendEmergencyCallStateChange(true);
}
//CDMA
/**
* clirMode is one of the CLIR_ constants
*/
private Connection dialCdma(String dialString, int clirMode, Bundle intentExtras)
throws CallStateException {
// note that this triggers call state changed notif
clearDisconnected();
boolean isEmergencyCall =
PhoneNumberUtils.isLocalEmergencyNumber(mPhone.getContext(), dialString);
// Check for issues which would preclude dialing and throw a CallStateException.
checkForDialIssues(isEmergencyCall);
TelephonyManager tm =
(TelephonyManager) mPhone.getContext().getSystemService(Context.TELEPHONY_SERVICE);
String origNumber = dialString;
String operatorIsoContry = tm.getNetworkCountryIso(mPhone.getPhoneId());
String simIsoContry = tm.getSimCountryIsoForPhone(mPhone.getPhoneId());
boolean internationalRoaming = !TextUtils.isEmpty(operatorIsoContry)
&& !TextUtils.isEmpty(simIsoContry)
&& !simIsoContry.equals(operatorIsoContry);
if (internationalRoaming) {
if ("us".equals(simIsoContry)) {
internationalRoaming = internationalRoaming && !"vi".equals(operatorIsoContry);
} else if ("vi".equals(simIsoContry)) {
internationalRoaming = internationalRoaming && !"us".equals(operatorIsoContry);
}
}
if (internationalRoaming) {
dialString = convertNumberIfNecessary(mPhone, dialString);
}
boolean isPhoneInEcmMode = mPhone.isInEcm();
// Cancel Ecm timer if a second emergency call is originating in Ecm mode
if (isPhoneInEcmMode && isEmergencyCall) {
mPhone.handleTimerInEmergencyCallbackMode(GsmCdmaPhone.CANCEL_ECM_TIMER);
}
// The new call must be assigned to the foreground call.
// That call must be idle, so place anything that's
// there on hold
if (mForegroundCall.getState() == GsmCdmaCall.State.ACTIVE) {
return dialThreeWay(dialString, intentExtras);
}
mPendingMO = new GsmCdmaConnection(mPhone, dialString, this, mForegroundCall,
isEmergencyCall);
if (intentExtras != null) {
Rlog.d(LOG_TAG, "dialGsm - emergency dialer: " + intentExtras.getBoolean(
TelecomManager.EXTRA_IS_USER_INTENT_EMERGENCY_CALL));
mPendingMO.setHasKnownUserIntentEmergency(intentExtras.getBoolean(
TelecomManager.EXTRA_IS_USER_INTENT_EMERGENCY_CALL));
}
mHangupPendingMO = false;
if ( mPendingMO.getAddress() == null || mPendingMO.getAddress().length() == 0
|| mPendingMO.getAddress().indexOf(PhoneNumberUtils.WILD) >= 0 ) {
// Phone number is invalid
mPendingMO.mCause = DisconnectCause.INVALID_NUMBER;
// handlePollCalls() will notice this call not present
// and will mark it as dropped.
pollCallsWhenSafe();
} else {
// Always unmute when initiating a new call
setMute(false);
// Check data call
disableDataCallInEmergencyCall(dialString);
// In Ecm mode, if another emergency call is dialed, Ecm mode will not exit.
if(!isPhoneInEcmMode || (isPhoneInEcmMode && isEmergencyCall)) {
mCi.dial(mPendingMO.getAddress(), mPendingMO.isEmergencyCall(),
mPendingMO.getEmergencyNumberInfo(),
mPendingMO.hasKnownUserIntentEmergency(),
clirMode, obtainCompleteMessage());
} else {
mPhone.exitEmergencyCallbackMode();
mPhone.setOnEcbModeExitResponse(this,EVENT_EXIT_ECM_RESPONSE_CDMA, null);
mPendingCallClirMode=clirMode;
mPendingCallInEcm=true;
}
}
if (mNumberConverted) {
mPendingMO.restoreDialedNumberAfterConversion(origNumber);
mNumberConverted = false;
}
updatePhoneState();
mPhone.notifyPreciseCallStateChanged();
return mPendingMO;
}
//CDMA
private Connection dialThreeWay(String dialString, Bundle intentExtras) {
if (!mForegroundCall.isIdle()) {
// Check data call and possibly set mIsInEmergencyCall
disableDataCallInEmergencyCall(dialString);
// Attach the new connection to foregroundCall
mPendingMO = new GsmCdmaConnection(mPhone, dialString, this, mForegroundCall,
mIsInEmergencyCall);
if (intentExtras != null) {
Rlog.d(LOG_TAG, "dialThreeWay - emergency dialer " + intentExtras.getBoolean(
TelecomManager.EXTRA_IS_USER_INTENT_EMERGENCY_CALL));
mPendingMO.setHasKnownUserIntentEmergency(intentExtras.getBoolean(
TelecomManager.EXTRA_IS_USER_INTENT_EMERGENCY_CALL));
}
// Some networks need an empty flash before sending the normal one
CarrierConfigManager configManager = (CarrierConfigManager)
mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);
PersistableBundle bundle = configManager.getConfigForSubId(mPhone.getSubId());
if (bundle != null) {
m3WayCallFlashDelay =
bundle.getInt(CarrierConfigManager.KEY_CDMA_3WAYCALL_FLASH_DELAY_INT);
} else {
// The default 3-way call flash delay is 0s
m3WayCallFlashDelay = 0;
}
if (m3WayCallFlashDelay > 0) {
mCi.sendCDMAFeatureCode("", obtainMessage(EVENT_THREE_WAY_DIAL_BLANK_FLASH));
} else {
mCi.sendCDMAFeatureCode(mPendingMO.getAddress(),
obtainMessage(EVENT_THREE_WAY_DIAL_L2_RESULT_CDMA));
}
return mPendingMO;
}
return null;
}
public Connection dial(String dialString, Bundle intentExtras) throws CallStateException {
if (isPhoneTypeGsm()) {
return dialGsm(dialString, CommandsInterface.CLIR_DEFAULT, intentExtras);
} else {
return dialCdma(dialString, CommandsInterface.CLIR_DEFAULT, intentExtras);
}
}
//GSM
public Connection dialGsm(String dialString, UUSInfo uusInfo, Bundle intentExtras)
throws CallStateException {
return dialGsm(dialString, CommandsInterface.CLIR_DEFAULT, uusInfo, intentExtras);
}
//GSM
private Connection dialGsm(String dialString, int clirMode, Bundle intentExtras)
throws CallStateException {
return dialGsm(dialString, clirMode, null, intentExtras);
}
public void acceptCall() throws CallStateException {
// FIXME if SWITCH fails, should retry with ANSWER
// in case the active/holding call disappeared and this
// is no longer call waiting
if (mRingingCall.getState() == GsmCdmaCall.State.INCOMING) {
Rlog.i("phone", "acceptCall: incoming...");
// Always unmute when answering a new call
setMute(false);
mPhone.getVoiceCallSessionStats().onRilAcceptCall(mRingingCall.getConnections());
mCi.acceptCall(obtainCompleteMessage());
} else if (mRingingCall.getState() == GsmCdmaCall.State.WAITING) {
if (isPhoneTypeGsm()) {
setMute(false);
} else {
GsmCdmaConnection cwConn = (GsmCdmaConnection)(mRingingCall.getLatestConnection());
// Since there is no network response for supplimentary
// service for CDMA, we assume call waiting is answered.
// ringing Call state change to idle is in GsmCdmaCall.detach
// triggered by updateParent.
cwConn.updateParent(mRingingCall, mForegroundCall);
cwConn.onConnectedInOrOut();
updatePhoneState();
}
switchWaitingOrHoldingAndActive();
} else {
throw new CallStateException("phone not ringing");
}
}
public void rejectCall() throws CallStateException {
// AT+CHLD=0 means "release held or UDUB"
// so if the phone isn't ringing, this could hang up held
if (mRingingCall.getState().isRinging()) {
mCi.rejectCall(obtainCompleteMessage());
} else {
throw new CallStateException("phone not ringing");
}
}
//CDMA
private void flashAndSetGenericTrue() {
mCi.sendCDMAFeatureCode("", obtainMessage(EVENT_SWITCH_RESULT));
mPhone.notifyPreciseCallStateChanged();
}
@UnsupportedAppUsage
public void switchWaitingOrHoldingAndActive() throws CallStateException {
// Should we bother with this check?
if (mRingingCall.getState() == GsmCdmaCall.State.INCOMING) {
throw new CallStateException("cannot be in the incoming state");
} else {
if (isPhoneTypeGsm()) {
mCi.switchWaitingOrHoldingAndActive(
obtainCompleteMessage(EVENT_SWITCH_RESULT));
} else {
if (mForegroundCall.getConnectionsCount() > 1) {
flashAndSetGenericTrue();
} else {
// Send a flash command to CDMA network for putting the other party on hold.
// For CDMA networks which do not support this the user would just hear a beep
// from the network. For CDMA networks which do support it will put the other
// party on hold.
mCi.sendCDMAFeatureCode("", obtainMessage(EVENT_SWITCH_RESULT));
}
}
}
}
public void conference() {
if (isPhoneTypeGsm()) {
mCi.conference(obtainCompleteMessage(EVENT_CONFERENCE_RESULT));
} else {
// Should we be checking state?
flashAndSetGenericTrue();
}
}
public void explicitCallTransfer() {
mCi.explicitCallTransfer(obtainCompleteMessage(EVENT_ECT_RESULT));
}
@UnsupportedAppUsage
public void clearDisconnected() {
internalClearDisconnected();
updatePhoneState();
mPhone.notifyPreciseCallStateChanged();
}
public boolean canConference() {
return mForegroundCall.getState() == GsmCdmaCall.State.ACTIVE
&& mBackgroundCall.getState() == GsmCdmaCall.State.HOLDING
&& !mBackgroundCall.isFull()
&& !mForegroundCall.isFull();
}
/**
* Determines if there are issues which would preclude dialing an outgoing call. Throws a
* {@link CallStateException} if there is an issue.
* @throws CallStateException
*/
public void checkForDialIssues(boolean isEmergencyCall) throws CallStateException {
boolean disableCall = TelephonyProperties.disable_call().orElse(false);
if (mCi.getRadioState() != TelephonyManager.RADIO_POWER_ON) {
throw new CallStateException(CallStateException.ERROR_POWER_OFF,
"Modem not powered");
}
if (disableCall) {
throw new CallStateException(CallStateException.ERROR_CALLING_DISABLED,
"Calling disabled via ro.telephony.disable-call property");
}
if (mPendingMO != null) {
throw new CallStateException(CallStateException.ERROR_ALREADY_DIALING,
"A call is already dialing.");
}
if (mRingingCall.isRinging()) {
throw new CallStateException(CallStateException.ERROR_CALL_RINGING,
"Can't call while a call is ringing.");
}
if (isPhoneTypeGsm()
&& mForegroundCall.getState().isAlive() && mBackgroundCall.getState().isAlive()) {
throw new CallStateException(CallStateException.ERROR_TOO_MANY_CALLS,
"There is already a foreground and background call.");
}
if (!isPhoneTypeGsm()
// Essentially foreground call state is one of:
// HOLDING, DIALING, ALERTING, INCOMING, WAITING
&& mForegroundCall.getState().isAlive()
&& mForegroundCall.getState() != GsmCdmaCall.State.ACTIVE
&& mBackgroundCall.getState().isAlive()) {
throw new CallStateException(CallStateException.ERROR_TOO_MANY_CALLS,
"There is already a foreground and background call.");
}
if (!isEmergencyCall && isInOtaspCall()) {
throw new CallStateException(CallStateException.ERROR_OTASP_PROVISIONING_IN_PROCESS,
"OTASP provisioning is in process.");
}
}
public boolean canTransfer() {
if (isPhoneTypeGsm()) {
return (mForegroundCall.getState() == GsmCdmaCall.State.ACTIVE
|| mForegroundCall.getState() == GsmCdmaCall.State.ALERTING
|| mForegroundCall.getState() == GsmCdmaCall.State.DIALING)
&& mBackgroundCall.getState() == GsmCdmaCall.State.HOLDING;
} else {
Rlog.e(LOG_TAG, "canTransfer: not possible in CDMA");
return false;
}
}
//***** Private Instance Methods
private void internalClearDisconnected() {
mRingingCall.clearDisconnected();
mForegroundCall.clearDisconnected();
mBackgroundCall.clearDisconnected();
}
/**
* Obtain a message to use for signalling "invoke getCurrentCalls() when
* this operation and all other pending operations are complete
*/
@UnsupportedAppUsage
private Message obtainCompleteMessage() {
return obtainCompleteMessage(EVENT_OPERATION_COMPLETE);
}
/**
* Obtain a message to use for signalling "invoke getCurrentCalls() when
* this operation and all other pending operations are complete
*/
@UnsupportedAppUsage
private Message obtainCompleteMessage(int what) {
mPendingOperations++;
mLastRelevantPoll = null;
mNeedsPoll = true;
if (DBG_POLL) log("obtainCompleteMessage: pendingOperations=" +
mPendingOperations + ", needsPoll=" + mNeedsPoll);
return obtainMessage(what);
}
private void operationComplete() {
mPendingOperations--;
if (DBG_POLL) log("operationComplete: pendingOperations=" +
mPendingOperations + ", needsPoll=" + mNeedsPoll);
if (mPendingOperations == 0 && mNeedsPoll) {
mLastRelevantPoll = obtainMessage(EVENT_POLL_CALLS_RESULT);
mCi.getCurrentCalls(mLastRelevantPoll);
} else if (mPendingOperations < 0) {
// this should never happen
Rlog.e(LOG_TAG,"GsmCdmaCallTracker.pendingOperations < 0");
mPendingOperations = 0;
}
}
@UnsupportedAppUsage
private void updatePhoneState() {
PhoneConstants.State oldState = mState;
if (mRingingCall.isRinging()) {
mState = PhoneConstants.State.RINGING;
} else if (mPendingMO != null ||
!(mForegroundCall.isIdle() && mBackgroundCall.isIdle())) {
mState = PhoneConstants.State.OFFHOOK;
} else {
Phone imsPhone = mPhone.getImsPhone();
if ( mState == PhoneConstants.State.OFFHOOK && (imsPhone != null)){
imsPhone.callEndCleanupHandOverCallIfAny();
}
mState = PhoneConstants.State.IDLE;
}
if (mState == PhoneConstants.State.IDLE && oldState != mState) {
mVoiceCallEndedRegistrants.notifyRegistrants(
new AsyncResult(null, null, null));
} else if (oldState == PhoneConstants.State.IDLE && oldState != mState) {
mVoiceCallStartedRegistrants.notifyRegistrants (
new AsyncResult(null, null, null));
}
if (Phone.DEBUG_PHONE) {
log("update phone state, old=" + oldState + " new="+ mState);
}
if (mState != oldState) {
mPhone.notifyPhoneStateChanged();
mMetrics.writePhoneState(mPhone.getPhoneId(), mState);
}
}
// ***** Overwritten from CallTracker
@Override
protected synchronized void handlePollCalls(AsyncResult ar) {
List polledCalls;
if (VDBG) log("handlePollCalls");
if (ar.exception == null) {
polledCalls = (List)ar.result;
} else if (isCommandExceptionRadioNotAvailable(ar.exception)) {
// just a dummy empty ArrayList to cause the loop
// to hang up all the calls
polledCalls = new ArrayList();
} else {
// Radio probably wasn't ready--try again in a bit
// But don't keep polling if the channel is closed
pollCallsAfterDelay();
return;
}
Connection newRinging = null; //or waiting
ArrayList<Connection> newUnknownConnectionsGsm = new ArrayList<Connection>();
Connection newUnknownConnectionCdma = null;
boolean hasNonHangupStateChanged = false; // Any change besides
// a dropped connection
boolean hasAnyCallDisconnected = false;
boolean needsPollDelay = false;
boolean unknownConnectionAppeared = false;
int handoverConnectionsSize = mHandoverConnections.size();
//CDMA
boolean noConnectionExists = true;
for (int i = 0, curDC = 0, dcSize = polledCalls.size()
; i < mConnections.length; i++) {
GsmCdmaConnection conn = mConnections[i];
DriverCall dc = null;
// polledCall list is sparse
if (curDC < dcSize) {
dc = (DriverCall) polledCalls.get(curDC);
if (dc.index == i+1) {
curDC++;
} else {
dc = null;
}
}
//CDMA
if (conn != null || dc != null) {
noConnectionExists = false;
}
if (DBG_POLL) log("poll: conn[i=" + i + "]=" +
conn+", dc=" + dc);
if (conn == null && dc != null) {
// Connection appeared in CLCC response that we don't know about
if (mPendingMO != null && mPendingMO.compareTo(dc)) {
if (DBG_POLL) log("poll: pendingMO=" + mPendingMO);
// It's our pending mobile originating call
mConnections[i] = mPendingMO;
mPendingMO.mIndex = i;
mPendingMO.update(dc);
mPendingMO = null;
// Someone has already asked to hangup this call
if (mHangupPendingMO) {
mHangupPendingMO = false;
// Re-start Ecm timer when an uncompleted emergency call ends
if (!isPhoneTypeGsm() && mPhone.isEcmCanceledForEmergency()) {
mPhone.handleTimerInEmergencyCallbackMode(
GsmCdmaPhone.RESTART_ECM_TIMER);
}
try {
if (Phone.DEBUG_PHONE) log(
"poll: hangupPendingMO, hangup conn " + i);
hangup(mConnections[i]);
} catch (CallStateException ex) {
Rlog.e(LOG_TAG, "unexpected error on hangup");
}
// Do not continue processing this poll
// Wait for hangup and repoll
return;
}
} else {
if (Phone.DEBUG_PHONE) {
log("pendingMo=" + mPendingMO + ", dc=" + dc);
}
mConnections[i] = new GsmCdmaConnection(mPhone, dc, this, i);
Connection hoConnection = getHoConnection(dc);
if (hoConnection != null) {
// Single Radio Voice Call Continuity (SRVCC) completed
mConnections[i].migrateFrom(hoConnection);
// Updating connect time for silent redial cases (ex: Calls are transferred
// from DIALING/ALERTING/INCOMING/WAITING to ACTIVE)
if (hoConnection.mPreHandoverState != GsmCdmaCall.State.ACTIVE &&
hoConnection.mPreHandoverState != GsmCdmaCall.State.HOLDING &&
dc.state == DriverCall.State.ACTIVE) {
mConnections[i].onConnectedInOrOut();
}
mHandoverConnections.remove(hoConnection);
if (isPhoneTypeGsm()) {
for (Iterator<Connection> it = mHandoverConnections.iterator();
it.hasNext(); ) {
Connection c = it.next();
Rlog.i(LOG_TAG, "HO Conn state is " + c.mPreHandoverState);
if (c.mPreHandoverState == mConnections[i].getState()) {
Rlog.i(LOG_TAG, "Removing HO conn "
+ hoConnection + c.mPreHandoverState);
it.remove();
}
}
}
mPhone.notifyHandoverStateChanged(mConnections[i]);
} else {
// find if the MT call is a new ring or unknown connection
newRinging = checkMtFindNewRinging(dc,i);
if (newRinging == null) {
unknownConnectionAppeared = true;
if (isPhoneTypeGsm()) {
newUnknownConnectionsGsm.add(mConnections[i]);
} else {
newUnknownConnectionCdma = mConnections[i];
}
}
}
}
hasNonHangupStateChanged = true;
} else if (conn != null && dc == null) {
if (isPhoneTypeGsm()) {
// Connection missing in CLCC response that we were
// tracking.
mDroppedDuringPoll.add(conn);
} else {
// This case means the RIL has no more active call anymore and
// we need to clean up the foregroundCall and ringingCall.
// Loop through foreground call connections as
// it contains the known logical connections.
ArrayList<Connection> connections = mForegroundCall.getConnections();
for (Connection cn : connections) {
if (Phone.DEBUG_PHONE) {
log("adding fgCall cn " + cn + "to droppedDuringPoll");
}
mDroppedDuringPoll.add((GsmCdmaConnection) cn);
}
connections = mRingingCall.getConnections();
// Loop through ringing call connections as
// it may contain the known logical connections.
for (Connection cn : connections) {
if (Phone.DEBUG_PHONE) {
log("adding rgCall cn " + cn + "to droppedDuringPoll");
}
mDroppedDuringPoll.add((GsmCdmaConnection) cn);
}
// Re-start Ecm timer when the connected emergency call ends
if (mPhone.isEcmCanceledForEmergency()) {
mPhone.handleTimerInEmergencyCallbackMode(GsmCdmaPhone.RESTART_ECM_TIMER);
}
// If emergency call is not going through while dialing
checkAndEnableDataCallAfterEmergencyCallDropped();
}
// Dropped connections are removed from the CallTracker
// list but kept in the Call list
mConnections[i] = null;
} else if (conn != null && dc != null && !conn.compareTo(dc) && isPhoneTypeGsm()) {
// Connection in CLCC response does not match what
// we were tracking. Assume dropped call and new call
mDroppedDuringPoll.add(conn);
mConnections[i] = new GsmCdmaConnection (mPhone, dc, this, i);
if (mConnections[i].getCall() == mRingingCall) {
newRinging = mConnections[i];
} // else something strange happened
hasNonHangupStateChanged = true;
} else if (conn != null && dc != null) { /* implicit conn.compareTo(dc) */
// Call collision case
if (!isPhoneTypeGsm() && conn.isIncoming() != dc.isMT) {
if (dc.isMT == true) {
// Mt call takes precedence than Mo,drops Mo
mDroppedDuringPoll.add(conn);
// find if the MT call is a new ring or unknown connection
newRinging = checkMtFindNewRinging(dc,i);
if (newRinging == null) {
unknownConnectionAppeared = true;
newUnknownConnectionCdma = conn;
}
checkAndEnableDataCallAfterEmergencyCallDropped();
} else {
// Call info stored in conn is not consistent with the call info from dc.
// We should follow the rule of MT calls taking precedence over MO calls
// when there is conflict, so here we drop the call info from dc and
// continue to use the call info from conn, and only take a log.
Rlog.e(LOG_TAG,"Error in RIL, Phantom call appeared " + dc);
}
} else {
boolean changed;
changed = conn.update(dc);
hasNonHangupStateChanged = hasNonHangupStateChanged || changed;
}
}
if (REPEAT_POLLING) {
if (dc != null) {
// FIXME with RIL, we should not need this anymore
if ((dc.state == DriverCall.State.DIALING
/*&& cm.getOption(cm.OPTION_POLL_DIALING)*/)
|| (dc.state == DriverCall.State.ALERTING
/*&& cm.getOption(cm.OPTION_POLL_ALERTING)*/)
|| (dc.state == DriverCall.State.INCOMING
/*&& cm.getOption(cm.OPTION_POLL_INCOMING)*/)
|| (dc.state == DriverCall.State.WAITING
/*&& cm.getOption(cm.OPTION_POLL_WAITING)*/)) {
// Sometimes there's no unsolicited notification
// for state transitions
needsPollDelay = true;
}
}
}
}
// Safety check so that obj is not stuck with mIsInEmergencyCall set to true (and data
// disabled). This should never happen though.
if (!isPhoneTypeGsm() && noConnectionExists) {
checkAndEnableDataCallAfterEmergencyCallDropped();
}
// This is the first poll after an ATD.
// We expect the pending call to appear in the list
// If it does not, we land here
if (mPendingMO != null) {
Rlog.d(LOG_TAG, "Pending MO dropped before poll fg state:"
+ mForegroundCall.getState());
mDroppedDuringPoll.add(mPendingMO);
mPendingMO = null;
mHangupPendingMO = false;
if (!isPhoneTypeGsm()) {
if( mPendingCallInEcm) {
mPendingCallInEcm = false;
}
checkAndEnableDataCallAfterEmergencyCallDropped();
}
}
if (newRinging != null) {
mPhone.notifyNewRingingConnection(newRinging);
}
// clear the "local hangup" and "missed/rejected call"
// cases from the "dropped during poll" list
// These cases need no "last call fail" reason
ArrayList<GsmCdmaConnection> locallyDisconnectedConnections = new ArrayList<>();
for (int i = mDroppedDuringPoll.size() - 1; i >= 0 ; i--) {
GsmCdmaConnection conn = mDroppedDuringPoll.get(i);
//CDMA
boolean wasDisconnected = false;
if (conn.isIncoming() && conn.getConnectTime() == 0) {
// Missed or rejected call
int cause;
if (conn.mCause == DisconnectCause.LOCAL) {
cause = DisconnectCause.INCOMING_REJECTED;
} else {
cause = DisconnectCause.INCOMING_MISSED;
}
if (Phone.DEBUG_PHONE) {
log("missed/rejected call, conn.cause=" + conn.mCause);
log("setting cause to " + cause);
}
mDroppedDuringPoll.remove(i);
hasAnyCallDisconnected |= conn.onDisconnect(cause);
wasDisconnected = true;
locallyDisconnectedConnections.add(conn);
} else if (conn.mCause == DisconnectCause.LOCAL
|| conn.mCause == DisconnectCause.INVALID_NUMBER) {
mDroppedDuringPoll.remove(i);
hasAnyCallDisconnected |= conn.onDisconnect(conn.mCause);
wasDisconnected = true;
locallyDisconnectedConnections.add(conn);
}
if (!isPhoneTypeGsm() && wasDisconnected && unknownConnectionAppeared
&& conn == newUnknownConnectionCdma) {
unknownConnectionAppeared = false;
newUnknownConnectionCdma = null;
}
}
if (locallyDisconnectedConnections.size() > 0) {
mMetrics.writeRilCallList(mPhone.getPhoneId(), locallyDisconnectedConnections,
getNetworkCountryIso());
mPhone.getVoiceCallSessionStats().onRilCallListChanged(locallyDisconnectedConnections);
}
/* Disconnect any pending Handover connections */
for (Iterator<Connection> it = mHandoverConnections.iterator();
it.hasNext();) {
Connection hoConnection = it.next();
log("handlePollCalls - disconnect hoConn= " + hoConnection +
" hoConn.State= " + hoConnection.getState());
if (hoConnection.getState().isRinging()) {
hoConnection.onDisconnect(DisconnectCause.INCOMING_MISSED);
} else {
hoConnection.onDisconnect(DisconnectCause.NOT_VALID);
}
// TODO: Do we need to update these hoConnections in Metrics ?
it.remove();
}
// Any non-local disconnects: determine cause
if (mDroppedDuringPoll.size() > 0) {
mCi.getLastCallFailCause(
obtainNoPollCompleteMessage(EVENT_GET_LAST_CALL_FAIL_CAUSE));
}
if (needsPollDelay) {
pollCallsAfterDelay();
}
// Cases when we can no longer keep disconnected Connection's
// with their previous calls
// 1) the phone has started to ring
// 2) A Call/Connection object has changed state...
// we may have switched or held or answered (but not hung up)
if (newRinging != null || hasNonHangupStateChanged || hasAnyCallDisconnected) {
internalClearDisconnected();
}
if (VDBG) log("handlePollCalls calling updatePhoneState()");
updatePhoneState();
if (unknownConnectionAppeared) {
if (isPhoneTypeGsm()) {
for (Connection c : newUnknownConnectionsGsm) {
log("Notify unknown for " + c);
mPhone.notifyUnknownConnection(c);
}
} else {
mPhone.notifyUnknownConnection(newUnknownConnectionCdma);
}
}
if (hasNonHangupStateChanged || newRinging != null || hasAnyCallDisconnected) {
mPhone.notifyPreciseCallStateChanged();
updateMetrics(mConnections);
}
// If all handover connections are mapped during this poll process clean it up
if (handoverConnectionsSize > 0 && mHandoverConnections.size() == 0) {
Phone imsPhone = mPhone.getImsPhone();
if (imsPhone != null) {
imsPhone.callEndCleanupHandOverCallIfAny();
}
}
//dumpState();
}
private void updateMetrics(GsmCdmaConnection[] connections) {
ArrayList<GsmCdmaConnection> activeConnections = new ArrayList<>();
for (GsmCdmaConnection conn : connections) {
if (conn != null) activeConnections.add(conn);
}
mMetrics.writeRilCallList(mPhone.getPhoneId(), activeConnections, getNetworkCountryIso());
mPhone.getVoiceCallSessionStats().onRilCallListChanged(activeConnections);
}
private void handleRadioNotAvailable() {
// handlePollCalls will clear out its
// call list when it gets the CommandException
// error result from this
pollCallsWhenSafe();
}
private void dumpState() {
List l;
Rlog.i(LOG_TAG,"Phone State:" + mState);
Rlog.i(LOG_TAG,"Ringing call: " + mRingingCall.toString());
l = mRingingCall.getConnections();
for (int i = 0, s = l.size(); i < s; i++) {
Rlog.i(LOG_TAG,l.get(i).toString());
}
Rlog.i(LOG_TAG,"Foreground call: " + mForegroundCall.toString());
l = mForegroundCall.getConnections();
for (int i = 0, s = l.size(); i < s; i++) {
Rlog.i(LOG_TAG,l.get(i).toString());
}
Rlog.i(LOG_TAG,"Background call: " + mBackgroundCall.toString());
l = mBackgroundCall.getConnections();
for (int i = 0, s = l.size(); i < s; i++) {
Rlog.i(LOG_TAG,l.get(i).toString());
}
}
//***** Called from GsmCdmaConnection
public void hangup(GsmCdmaConnection conn) throws CallStateException {
if (conn.mOwner != this) {
throw new CallStateException ("GsmCdmaConnection " + conn
+ "does not belong to GsmCdmaCallTracker " + this);
}
if (conn == mPendingMO) {
// We're hanging up an outgoing call that doesn't have it's
// GsmCdma index assigned yet
if (Phone.DEBUG_PHONE) log("hangup: set hangupPendingMO to true");
mHangupPendingMO = true;
} else if (!isPhoneTypeGsm()
&& conn.getCall() == mRingingCall
&& mRingingCall.getState() == GsmCdmaCall.State.WAITING) {
// Handle call waiting hang up case.
//
// The ringingCall state will change to IDLE in GsmCdmaCall.detach
// if the ringing call connection size is 0. We don't specifically
// set the ringing call state to IDLE here to avoid a race condition
// where a new call waiting could get a hang up from an old call
// waiting ringingCall.
//
// PhoneApp does the call log itself since only PhoneApp knows
// the hangup reason is user ignoring or timing out. So conn.onDisconnect()
// is not called here. Instead, conn.onLocalDisconnect() is called.
conn.onLocalDisconnect();
updatePhoneState();
mPhone.notifyPreciseCallStateChanged();
return;
} else {
try {
mMetrics.writeRilHangup(mPhone.getPhoneId(), conn, conn.getGsmCdmaIndex(),
getNetworkCountryIso());
mCi.hangupConnection (conn.getGsmCdmaIndex(), obtainCompleteMessage());
} catch (CallStateException ex) {
// Ignore "connection not found"
// Call may have hung up already
Rlog.w(LOG_TAG,"GsmCdmaCallTracker WARN: hangup() on absent connection "
+ conn);
}
}
conn.onHangupLocal();
}
public void separate(GsmCdmaConnection conn) throws CallStateException {
if (conn.mOwner != this) {
throw new CallStateException ("GsmCdmaConnection " + conn
+ "does not belong to GsmCdmaCallTracker " + this);
}
try {
mCi.separateConnection (conn.getGsmCdmaIndex(),
obtainCompleteMessage(EVENT_SEPARATE_RESULT));
} catch (CallStateException ex) {
// Ignore "connection not found"
// Call may have hung up already
Rlog.w(LOG_TAG,"GsmCdmaCallTracker WARN: separate() on absent connection " + conn);
}
}
//***** Called from GsmCdmaPhone
@UnsupportedAppUsage
public void setMute(boolean mute) {
mDesiredMute = mute;
mCi.setMute(mDesiredMute, null);
}
public boolean getMute() {
return mDesiredMute;
}
//***** Called from GsmCdmaCall
public void hangup(GsmCdmaCall call) throws CallStateException {
if (call.getConnectionsCount() == 0) {
throw new CallStateException("no connections in call");
}
if (call == mRingingCall) {
if (Phone.DEBUG_PHONE) log("(ringing) hangup waiting or background");
logHangupEvent(call);
mCi.hangupWaitingOrBackground(obtainCompleteMessage());
} else if (call == mForegroundCall) {
if (call.isDialingOrAlerting()) {
if (Phone.DEBUG_PHONE) {
log("(foregnd) hangup dialing or alerting...");
}
hangup((GsmCdmaConnection)(call.getConnections().get(0)));
} else if (isPhoneTypeGsm()
&& mRingingCall.isRinging()) {
// Do not auto-answer ringing on CHUP, instead just end active calls
log("hangup all conns in active/background call, without affecting ringing call");
hangupAllConnections(call);
} else {
logHangupEvent(call);
hangupForegroundResumeBackground();
}
} else if (call == mBackgroundCall) {
if (mRingingCall.isRinging()) {
if (Phone.DEBUG_PHONE) {
log("hangup all conns in background call");
}
hangupAllConnections(call);
} else {
hangupWaitingOrBackground();
}
} else {
throw new RuntimeException ("GsmCdmaCall " + call +
"does not belong to GsmCdmaCallTracker " + this);
}
call.onHangupLocal();
mPhone.notifyPreciseCallStateChanged();
}
private void logHangupEvent(GsmCdmaCall call) {
for (Connection conn : call.getConnections()) {
GsmCdmaConnection c = (GsmCdmaConnection) conn;
int call_index;
try {
call_index = c.getGsmCdmaIndex();
} catch (CallStateException e) {
call_index = -1;
}
mMetrics.writeRilHangup(mPhone.getPhoneId(), c, call_index, getNetworkCountryIso());
}
if (VDBG) {
Rlog.v(LOG_TAG, "logHangupEvent logged " + call.getConnectionsCount()
+ " Connections ");
}
}
public void hangupWaitingOrBackground() {
if (Phone.DEBUG_PHONE) log("hangupWaitingOrBackground");
logHangupEvent(mBackgroundCall);
mCi.hangupWaitingOrBackground(obtainCompleteMessage());
}
public void hangupForegroundResumeBackground() {
if (Phone.DEBUG_PHONE) log("hangupForegroundResumeBackground");
mCi.hangupForegroundResumeBackground(obtainCompleteMessage());
}
public void hangupConnectionByIndex(GsmCdmaCall call, int index)
throws CallStateException {
for (Connection conn : call.getConnections()) {
GsmCdmaConnection c = (GsmCdmaConnection) conn;
if (!c.mDisconnected && c.getGsmCdmaIndex() == index) {
mMetrics.writeRilHangup(mPhone.getPhoneId(), c, c.getGsmCdmaIndex(),
getNetworkCountryIso());
mCi.hangupConnection(index, obtainCompleteMessage());
return;
}
}
throw new CallStateException("no GsmCdma index found");
}
public void hangupAllConnections(GsmCdmaCall call) {
try {
for (Connection conn : call.getConnections()) {
GsmCdmaConnection c = (GsmCdmaConnection) conn;
if (!c.mDisconnected) {
mMetrics.writeRilHangup(mPhone.getPhoneId(), c, c.getGsmCdmaIndex(),
getNetworkCountryIso());
mCi.hangupConnection(c.getGsmCdmaIndex(), obtainCompleteMessage());
}
}
} catch (CallStateException ex) {
Rlog.e(LOG_TAG, "hangupConnectionByIndex caught " + ex);
}
}
public GsmCdmaConnection getConnectionByIndex(GsmCdmaCall call, int index)
throws CallStateException {
for (Connection conn : call.getConnections()) {
GsmCdmaConnection c = (GsmCdmaConnection) conn;
if (!c.mDisconnected && c.getGsmCdmaIndex() == index) {
return c;
}
}
return null;
}
//CDMA
private void notifyCallWaitingInfo(CdmaCallWaitingNotification obj) {
if (mCallWaitingRegistrants != null) {
mCallWaitingRegistrants.notifyRegistrants(new AsyncResult(null, obj, null));
}
}
//CDMA
private void handleCallWaitingInfo(CdmaCallWaitingNotification cw) {
// Create a new GsmCdmaConnection which attaches itself to ringingCall.
new GsmCdmaConnection(mPhone.getContext(), cw, this, mRingingCall);
updatePhoneState();
// Finally notify application
notifyCallWaitingInfo(cw);
}
private Phone.SuppService getFailedService(int what) {
switch (what) {
case EVENT_SWITCH_RESULT:
return Phone.SuppService.SWITCH;
case EVENT_CONFERENCE_RESULT:
return Phone.SuppService.CONFERENCE;
case EVENT_SEPARATE_RESULT:
return Phone.SuppService.SEPARATE;
case EVENT_ECT_RESULT:
return Phone.SuppService.TRANSFER;
}
return Phone.SuppService.UNKNOWN;
}
//****** Overridden from Handler
@Override
public void handleMessage(Message msg) {
AsyncResult ar;
switch (msg.what) {
case EVENT_POLL_CALLS_RESULT:
Rlog.d(LOG_TAG, "Event EVENT_POLL_CALLS_RESULT Received");
if (msg == mLastRelevantPoll) {
if (DBG_POLL) log(
"handle EVENT_POLL_CALL_RESULT: set needsPoll=F");
mNeedsPoll = false;
mLastRelevantPoll = null;
handlePollCalls((AsyncResult)msg.obj);
}
break;
case EVENT_OPERATION_COMPLETE:
operationComplete();
break;
case EVENT_CONFERENCE_RESULT:
if (isPhoneTypeGsm()) {
ar = (AsyncResult) msg.obj;
if (ar.exception != null) {
// The conference merge failed, so notify listeners. Ultimately this
// bubbles up to Telecom, which will inform the InCall UI of the failure.
Connection connection = mForegroundCall.getLatestConnection();
if (connection != null) {
connection.onConferenceMergeFailed();
}
}
}
// fall through
case EVENT_SEPARATE_RESULT:
case EVENT_ECT_RESULT:
case EVENT_SWITCH_RESULT:
if (isPhoneTypeGsm()) {
ar = (AsyncResult) msg.obj;
if (ar.exception != null) {
if (msg.what == EVENT_SWITCH_RESULT) {
Connection connection = mForegroundCall.getLatestConnection();
if (connection != null) {
if (mBackgroundCall.getState() != GsmCdmaCall.State.HOLDING) {
connection.onConnectionEvent(
android.telecom.Connection.EVENT_CALL_HOLD_FAILED,
null);
} else {
connection.onConnectionEvent(
android.telecom.Connection.EVENT_CALL_SWITCH_FAILED,
null);
}
}
}
mPhone.notifySuppServiceFailed(getFailedService(msg.what));
}
operationComplete();
} else {
if (msg.what != EVENT_SWITCH_RESULT) {
// EVENT_SWITCH_RESULT in GSM call triggers operationComplete() which gets
// the current call list. But in CDMA there is no list so there is nothing
// to do. Other messages however are not expected in CDMA.
throw new RuntimeException("unexpected event " + msg.what + " not handled by " +
"phone type " + mPhone.getPhoneType());
}
}
break;
case EVENT_GET_LAST_CALL_FAIL_CAUSE:
int causeCode;
String vendorCause = null;
ar = (AsyncResult)msg.obj;
operationComplete();
if (ar.exception != null) {
if (ar.exception instanceof CommandException) {
// If we get a CommandException, there are some modem-reported command
// errors which are truly exceptional. We shouldn't treat these as
// NORMAL_CLEARING, so we'll re-map to ERROR_UNSPECIFIED.
CommandException commandException = (CommandException) ar.exception;
switch (commandException.getCommandError()) {
case RADIO_NOT_AVAILABLE:
// Intentional fall-through.
case NO_MEMORY:
// Intentional fall-through.
case INTERNAL_ERR:
// Intentional fall-through.
case NO_RESOURCES:
causeCode = CallFailCause.ERROR_UNSPECIFIED;
// Report the actual internal command error as the vendor cause;
// this will ensure it gets bubbled up into the Telecom logs.
vendorCause = commandException.getCommandError().toString();
break;
default:
causeCode = CallFailCause.NORMAL_CLEARING;
}
} else {
// An exception occurred...just treat the disconnect
// cause as "normal"
causeCode = CallFailCause.NORMAL_CLEARING;
Rlog.i(LOG_TAG,
"Exception during getLastCallFailCause, assuming normal "
+ "disconnect");
}
} else {
LastCallFailCause failCause = (LastCallFailCause)ar.result;
causeCode = failCause.causeCode;
vendorCause = failCause.vendorCause;
}
// Log the causeCode if its not normal
if (causeCode == CallFailCause.NO_CIRCUIT_AVAIL ||
causeCode == CallFailCause.TEMPORARY_FAILURE ||
causeCode == CallFailCause.SWITCHING_CONGESTION ||
causeCode == CallFailCause.CHANNEL_NOT_AVAIL ||
causeCode == CallFailCause.QOS_NOT_AVAIL ||
causeCode == CallFailCause.BEARER_NOT_AVAIL ||
causeCode == CallFailCause.ERROR_UNSPECIFIED) {
CellLocation loc = mPhone.getCellIdentity().asCellLocation();
int cid = -1;
if (loc != null) {
if (loc instanceof GsmCellLocation) {
cid = ((GsmCellLocation)loc).getCid();
} else if (loc instanceof CdmaCellLocation) {
cid = ((CdmaCellLocation)loc).getBaseStationId();
}
}
EventLog.writeEvent(EventLogTags.CALL_DROP, causeCode, cid,
TelephonyManager.getDefault().getNetworkType());
}
if (isEmcRetryCause(causeCode)) {
String dialString = "";
for(Connection conn : mForegroundCall.mConnections) {
GsmCdmaConnection gsmCdmaConnection = (GsmCdmaConnection)conn;
dialString = gsmCdmaConnection.getOrigDialString();
gsmCdmaConnection.getCall().detach(gsmCdmaConnection);
mDroppedDuringPoll.remove(gsmCdmaConnection);
}
mPhone.notifyVolteSilentRedial(dialString, causeCode);
updatePhoneState();
if (mDroppedDuringPoll.isEmpty()) {
log("LAST_CALL_FAIL_CAUSE - no Dropped normal Call");
return;
}
}
for (int i = 0, s = mDroppedDuringPoll.size(); i < s ; i++) {
GsmCdmaConnection conn = mDroppedDuringPoll.get(i);
conn.onRemoteDisconnect(causeCode, vendorCause);
}
updatePhoneState();
mPhone.notifyPreciseCallStateChanged();
mMetrics.writeRilCallList(mPhone.getPhoneId(), mDroppedDuringPoll,
getNetworkCountryIso());
mPhone.getVoiceCallSessionStats().onRilCallListChanged(mDroppedDuringPoll);
mDroppedDuringPoll.clear();
break;
case EVENT_REPOLL_AFTER_DELAY:
case EVENT_CALL_STATE_CHANGE:
pollCallsWhenSafe();
break;
case EVENT_RADIO_AVAILABLE:
handleRadioAvailable();
break;
case EVENT_RADIO_NOT_AVAILABLE:
handleRadioNotAvailable();
break;
case EVENT_EXIT_ECM_RESPONSE_CDMA:
if (!isPhoneTypeGsm()) {
// no matter the result, we still do the same here
if (mPendingCallInEcm) {
mCi.dial(mPendingMO.getAddress(), mPendingMO.isEmergencyCall(),
mPendingMO.getEmergencyNumberInfo(),
mPendingMO.hasKnownUserIntentEmergency(),
mPendingCallClirMode, obtainCompleteMessage());
mPendingCallInEcm = false;
}
mPhone.unsetOnEcbModeExitResponse(this);
} else {
throw new RuntimeException("unexpected event " + msg.what + " not handled by " +
"phone type " + mPhone.getPhoneType());
}
break;
case EVENT_CALL_WAITING_INFO_CDMA:
if (!isPhoneTypeGsm()) {
ar = (AsyncResult)msg.obj;
if (ar.exception == null) {
handleCallWaitingInfo((CdmaCallWaitingNotification)ar.result);
Rlog.d(LOG_TAG, "Event EVENT_CALL_WAITING_INFO_CDMA Received");
}
} else {
throw new RuntimeException("unexpected event " + msg.what + " not handled by " +
"phone type " + mPhone.getPhoneType());
}
break;
case EVENT_THREE_WAY_DIAL_L2_RESULT_CDMA:
if (!isPhoneTypeGsm()) {
ar = (AsyncResult)msg.obj;
if (ar.exception == null) {
// Assume 3 way call is connected
mPendingMO.onConnectedInOrOut();
mPendingMO = null;
}
} else {
throw new RuntimeException("unexpected event " + msg.what + " not handled by " +
"phone type " + mPhone.getPhoneType());
}
break;
case EVENT_THREE_WAY_DIAL_BLANK_FLASH:
if (!isPhoneTypeGsm()) {
ar = (AsyncResult) msg.obj;
if (ar.exception == null) {
postDelayed(
new Runnable() {
public void run() {
if (mPendingMO != null) {
mCi.sendCDMAFeatureCode(mPendingMO.getAddress(),
obtainMessage(EVENT_THREE_WAY_DIAL_L2_RESULT_CDMA));
}
}
}, m3WayCallFlashDelay);
} else {
mPendingMO = null;
Rlog.w(LOG_TAG, "exception happened on Blank Flash for 3-way call");
}
} else {
throw new RuntimeException("unexpected event " + msg.what + " not handled by " +
"phone type " + mPhone.getPhoneType());
}
break;
default:{
throw new RuntimeException("unexpected event " + msg.what + " not handled by " +
"phone type " + mPhone.getPhoneType());
}
}
}
/**
* Dispatches the CS call radio technology to all exist connections.
*
* @param vrat the RIL voice radio technology for CS calls,
* see {@code RIL_RADIO_TECHNOLOGY_*} in {@link android.telephony.ServiceState}.
*/
public void dispatchCsCallRadioTech(@RilRadioTechnology int vrat) {
if (mConnections == null) {
log("dispatchCsCallRadioTech: mConnections is null");
return;
}
for (GsmCdmaConnection gsmCdmaConnection : mConnections) {
if (gsmCdmaConnection != null) {
gsmCdmaConnection.setCallRadioTech(vrat);
}
}
}
//CDMA
/**
* Check and enable data call after an emergency call is dropped if it's
* not in ECM
*/
private void checkAndEnableDataCallAfterEmergencyCallDropped() {
if (mIsInEmergencyCall) {
mIsInEmergencyCall = false;
boolean inEcm = mPhone.isInEcm();
if (Phone.DEBUG_PHONE) {
log("checkAndEnableDataCallAfterEmergencyCallDropped,inEcm=" + inEcm);
}
if (!inEcm) {
// Re-initiate data connection
mPhone.getDataEnabledSettings().setInternalDataEnabled(true);
mPhone.notifyEmergencyCallRegistrants(false);
}
mPhone.sendEmergencyCallStateChange(false);
}
}
/**
* Check the MT call to see if it's a new ring or
* a unknown connection.
*/
private Connection checkMtFindNewRinging(DriverCall dc, int i) {
Connection newRinging = null;
// it's a ringing call
if (mConnections[i].getCall() == mRingingCall) {
newRinging = mConnections[i];
if (Phone.DEBUG_PHONE) log("Notify new ring " + dc);
} else {
// Something strange happened: a call which is neither
// a ringing call nor the one we created. It could be the
// call collision result from RIL
Rlog.e(LOG_TAG,"Phantom call appeared " + dc);
// If it's a connected call, set the connect time so that
// it's non-zero. It may not be accurate, but at least
// it won't appear as a Missed Call.
if (dc.state != DriverCall.State.ALERTING
&& dc.state != DriverCall.State.DIALING) {
mConnections[i].onConnectedInOrOut();
if (dc.state == DriverCall.State.HOLDING) {
// We've transitioned into HOLDING
mConnections[i].onStartedHolding();
}
}
}
return newRinging;
}
//CDMA
/**
* Check if current call is in emergency call
*
* @return true if it is in emergency call
* false if it is not in emergency call
*/
public boolean isInEmergencyCall() {
return mIsInEmergencyCall;
}
/**
* @return {@code true} if the pending outgoing call or active call is an OTASP call,
* {@code false} otherwise.
*/
public boolean isInOtaspCall() {
return mPendingMO != null && mPendingMO.isOtaspCall()
|| (mForegroundCall.getConnections().stream()
.filter(connection -> ((connection instanceof GsmCdmaConnection)
&& (((GsmCdmaConnection) connection).isOtaspCall())))
.count() > 0);
}
@UnsupportedAppUsage
private boolean isPhoneTypeGsm() {
return mPhone.getPhoneType() == PhoneConstants.PHONE_TYPE_GSM;
}
@UnsupportedAppUsage
@Override
public GsmCdmaPhone getPhone() {
return mPhone;
}
private boolean isEmcRetryCause(int causeCode) {
if (causeCode == CallFailCause.EMC_REDIAL_ON_IMS ||
causeCode == CallFailCause.EMC_REDIAL_ON_VOWIFI) {
return true;
}
return false;
}
@UnsupportedAppUsage
@Override
protected void log(String msg) {
Rlog.d(LOG_TAG, "[" + mPhone.getPhoneId() + "] " + msg);
}
@Override
public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
pw.println("GsmCdmaCallTracker extends:");
super.dump(fd, pw, args);
pw.println("mConnections: length=" + mConnections.length);
for(int i=0; i < mConnections.length; i++) {
pw.printf(" mConnections[%d]=%s\n", i, mConnections[i]);
}
pw.println(" mVoiceCallEndedRegistrants=" + mVoiceCallEndedRegistrants);
pw.println(" mVoiceCallStartedRegistrants=" + mVoiceCallStartedRegistrants);
if (!isPhoneTypeGsm()) {
pw.println(" mCallWaitingRegistrants=" + mCallWaitingRegistrants);
}
pw.println(" mDroppedDuringPoll: size=" + mDroppedDuringPoll.size());
for(int i = 0; i < mDroppedDuringPoll.size(); i++) {
pw.printf( " mDroppedDuringPoll[%d]=%s\n", i, mDroppedDuringPoll.get(i));
}
pw.println(" mRingingCall=" + mRingingCall);
pw.println(" mForegroundCall=" + mForegroundCall);
pw.println(" mBackgroundCall=" + mBackgroundCall);
pw.println(" mPendingMO=" + mPendingMO);
pw.println(" mHangupPendingMO=" + mHangupPendingMO);
pw.println(" mPhone=" + mPhone);
pw.println(" mDesiredMute=" + mDesiredMute);
pw.println(" mState=" + mState);
if (!isPhoneTypeGsm()) {
pw.println(" mPendingCallInEcm=" + mPendingCallInEcm);
pw.println(" mIsInEmergencyCall=" + mIsInEmergencyCall);
pw.println(" mPendingCallClirMode=" + mPendingCallClirMode);
}
}
@Override
public PhoneConstants.State getState() {
return mState;
}
public int getMaxConnectionsPerCall() {
return mPhone.isPhoneTypeGsm() ?
MAX_CONNECTIONS_PER_CALL_GSM :
MAX_CONNECTIONS_PER_CALL_CDMA;
}
private String getNetworkCountryIso() {
String countryIso = "";
if (mPhone != null) {
ServiceStateTracker sst = mPhone.getServiceStateTracker();
if (sst != null) {
LocaleTracker lt = sst.getLocaleTracker();
if (lt != null) {
countryIso = lt.getCurrentCountry();
}
}
}
return countryIso;
}
/**
* Called to force the call tracker to cleanup any stale calls. Does this by triggering
* {@code GET_CURRENT_CALLS} on the RIL.
*/
@Override
public void cleanupCalls() {
pollCallsWhenSafe();
}
}