/*
* Copyright (C) 2006 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.test;
import android.os.Looper;
import android.os.Message;
import android.os.Handler;
import android.telephony.PhoneNumberUtils;
import com.android.internal.telephony.ATParseEx;
import com.android.internal.telephony.gsm.DriverCall;
import java.util.List;
import java.util.ArrayList;
import android.util.Log;
class CallInfo
{
enum State {
ACTIVE(0),
HOLDING(1),
DIALING(2), // MO call only
ALERTING(3), // MO call only
INCOMING(4), // MT call only
WAITING(5); // MT call only
State (int value) {this.value = value;}
private final int value;
public int value() {return value;};
};
boolean isMT;
State state;
boolean isMpty;
String number;
int TOA;
CallInfo (boolean isMT, State state, boolean isMpty, String number)
{
this.isMT = isMT;
this.state = state;
this.isMpty = isMpty;
this.number = number;
if (number.length() > 0 && number.charAt(0) == '+') {
TOA = PhoneNumberUtils.TOA_International;
} else {
TOA = PhoneNumberUtils.TOA_Unknown;
}
}
static CallInfo
createOutgoingCall(String number)
{
return new CallInfo (false, State.DIALING, false, number);
}
static CallInfo
createIncomingCall(String number)
{
return new CallInfo (true, State.INCOMING, false, number);
}
String
toCLCCLine(int index)
{
return
"+CLCC: "
+ index + "," + (isMT ? "1" : "0") +","
+ state.value() + ",0," + (isMpty ? "1" : "0")
+ ",\"" + number + "\"," + TOA;
}
DriverCall
toDriverCall(int index)
{
DriverCall ret;
ret = new DriverCall();
ret.index = index;
ret.isMT = isMT;
try {
ret.state = DriverCall.stateFromCLCC(state.value());
} catch (ATParseEx ex) {
throw new RuntimeException("should never happen", ex);
}
ret.isMpty = isMpty;
ret.number = number;
ret.TOA = TOA;
ret.isVoice = true;
ret.als = 0;
return ret;
}
boolean
isActiveOrHeld()
{
return state == State.ACTIVE || state == State.HOLDING;
}
boolean
isConnecting()
{
return state == State.DIALING || state == State.ALERTING;
}
boolean
isRinging()
{
return state == State.INCOMING || state == State.WAITING;
}
}
class InvalidStateEx extends Exception
{
InvalidStateEx()
{
}
}
class SimulatedGsmCallState extends Handler
{
//***** Instance Variables
CallInfo calls[] = new CallInfo[MAX_CALLS];
private boolean autoProgressConnecting = true;
private boolean nextDialFailImmediately;
//***** Event Constants
static final int EVENT_PROGRESS_CALL_STATE = 1;
//***** Constants
static final int MAX_CALLS = 7;
/** number of msec between dialing -> alerting and alerting->active */
static final int CONNECTING_PAUSE_MSEC = 5 * 100;
//***** Overridden from Handler
public SimulatedGsmCallState(Looper looper) {
super(looper);
}
public void
handleMessage(Message msg)
{
synchronized(this) { switch (msg.what) {
// PLEASE REMEMBER
// calls may have hung up by the time delayed events happen
case EVENT_PROGRESS_CALL_STATE:
progressConnectingCallState();
break;
}}
}
//***** Public Methods
/**
* Start the simulated phone ringing
* true if succeeded, false if failed
*/
public boolean
triggerRing(String number)
{
synchronized (this) {
int empty = -1;
boolean isCallWaiting = false;
// ensure there aren't already calls INCOMING or WAITING
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call == null && empty < 0) {
empty = i;
} else if (call != null
&& (call.state == CallInfo.State.INCOMING
|| call.state == CallInfo.State.WAITING)
) {
Log.w("ModelInterpreter",
"triggerRing failed; phone already ringing");
return false;
} else if (call != null) {
isCallWaiting = true;
}
}
if (empty < 0 ) {
Log.w("ModelInterpreter", "triggerRing failed; all full");
return false;
}
calls[empty] = CallInfo.createIncomingCall(
PhoneNumberUtils.extractNetworkPortion(number));
if (isCallWaiting) {
calls[empty].state = CallInfo.State.WAITING;
}
}
return true;
}
/** If a call is DIALING or ALERTING, progress it to the next state */
public void
progressConnectingCallState()
{
synchronized (this) {
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call != null && call.state == CallInfo.State.DIALING) {
call.state = CallInfo.State.ALERTING;
if (autoProgressConnecting) {
sendMessageDelayed(
obtainMessage(EVENT_PROGRESS_CALL_STATE, call),
CONNECTING_PAUSE_MSEC);
}
break;
} else if (call != null
&& call.state == CallInfo.State.ALERTING
) {
call.state = CallInfo.State.ACTIVE;
break;
}
}
}
}
/** If a call is DIALING or ALERTING, progress it all the way to ACTIVE */
public void
progressConnectingToActive()
{
synchronized (this) {
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call != null && (call.state == CallInfo.State.DIALING
|| call.state == CallInfo.State.ALERTING)
) {
call.state = CallInfo.State.ACTIVE;
break;
}
}
}
}
/** automatically progress mobile originated calls to ACTIVE.
* default to true
*/
public void
setAutoProgressConnectingCall(boolean b)
{
autoProgressConnecting = b;
}
public void
setNextDialFailImmediately(boolean b)
{
nextDialFailImmediately = b;
}
/**
* hangup ringing, dialing, or active calls
* returns true if call was hung up, false if not
*/
public boolean
triggerHangupForeground()
{
synchronized (this) {
boolean found;
found = false;
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call != null
&& (call.state == CallInfo.State.INCOMING
|| call.state == CallInfo.State.WAITING)
) {
calls[i] = null;
found = true;
}
}
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call != null
&& (call.state == CallInfo.State.DIALING
|| call.state == CallInfo.State.ACTIVE
|| call.state == CallInfo.State.ALERTING)
) {
calls[i] = null;
found = true;
}
}
return found;
}
}
/**
* hangup holding calls
* returns true if call was hung up, false if not
*/
public boolean
triggerHangupBackground()
{
synchronized (this) {
boolean found = false;
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call != null && call.state == CallInfo.State.HOLDING) {
calls[i] = null;
found = true;
}
}
return found;
}
}
/**
* hangup all
* returns true if call was hung up, false if not
*/
public boolean
triggerHangupAll()
{
synchronized(this) {
boolean found = false;
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (calls[i] != null) {
found = true;
}
calls[i] = null;
}
return found;
}
}
public boolean
onAnswer()
{
synchronized (this) {
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call != null
&& (call.state == CallInfo.State.INCOMING
|| call.state == CallInfo.State.WAITING)
) {
return switchActiveAndHeldOrWaiting();
}
}
}
return false;
}
public boolean
onHangup()
{
boolean found = false;
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call != null && call.state != CallInfo.State.WAITING) {
calls[i] = null;
found = true;
}
}
return found;
}
public boolean
onChld(char c0, char c1)
{
boolean ret;
int callIndex = 0;
if (c1 != 0) {
callIndex = c1 - '1';
if (callIndex < 0 || callIndex >= calls.length) {
return false;
}
}
switch (c0) {
case '0':
ret = releaseHeldOrUDUB();
break;
case '1':
if (c1 <= 0) {
ret = releaseActiveAcceptHeldOrWaiting();
} else {
if (calls[callIndex] == null) {
ret = false;
} else {
calls[callIndex] = null;
ret = true;
}
}
break;
case '2':
if (c1 <= 0) {
ret = switchActiveAndHeldOrWaiting();
} else {
ret = separateCall(callIndex);
}
break;
case '3':
ret = conference();
break;
case '4':
ret = explicitCallTransfer();
break;
case '5':
if (true) { //just so javac doesnt complain about break
//CCBS not impled
ret = false;
}
break;
default:
ret = false;
}
return ret;
}
public boolean
releaseHeldOrUDUB() {
boolean found = false;
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null && c.isRinging()) {
found = true;
calls[i] = null;
break;
}
}
if (!found) {
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null && c.state == CallInfo.State.HOLDING) {
found = true;
calls[i] = null;
// don't stop...there may be more than one
}
}
}
return true;
}
public boolean
releaseActiveAcceptHeldOrWaiting()
{
boolean foundHeld = false;
boolean foundActive = false;
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null && c.state == CallInfo.State.ACTIVE) {
calls[i] = null;
foundActive = true;
}
}
if (!foundActive) {
// FIXME this may not actually be how most basebands react
// CHLD=1 may not hang up dialing/alerting calls
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null
&& (c.state == CallInfo.State.DIALING
|| c.state == CallInfo.State.ALERTING)
) {
calls[i] = null;
foundActive = true;
}
}
}
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null && c.state == CallInfo.State.HOLDING) {
c.state = CallInfo.State.ACTIVE;
foundHeld = true;
}
}
if (foundHeld) {
return true;
}
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null && c.isRinging()) {
c.state = CallInfo.State.ACTIVE;
return true;
}
}
return true;
}
public boolean
switchActiveAndHeldOrWaiting()
{
boolean hasHeld = false;
// first, are there held calls?
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null && c.state == CallInfo.State.HOLDING) {
hasHeld = true;
break;
}
}
// Now, switch
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null) {
if (c.state == CallInfo.State.ACTIVE) {
c.state = CallInfo.State.HOLDING;
} else if (c.state == CallInfo.State.HOLDING) {
c.state = CallInfo.State.ACTIVE;
} else if (!hasHeld && c.isRinging()) {
c.state = CallInfo.State.ACTIVE;
}
}
}
return true;
}
public boolean
separateCall(int index)
{
try {
CallInfo c;
c = calls[index];
if (c == null || c.isConnecting() || countActiveLines() != 1) {
return false;
}
c.state = CallInfo.State.ACTIVE;
c.isMpty = false;
for (int i = 0 ; i < calls.length ; i++) {
int countHeld=0, lastHeld=0;
if (i != index) {
CallInfo cb = calls[i];
if (cb != null && cb.state == CallInfo.State.ACTIVE) {
cb.state = CallInfo.State.HOLDING;
countHeld++;
lastHeld = i;
}
}
if (countHeld == 1) {
// if there's only one left, clear the MPTY flag
calls[lastHeld].isMpty = false;
}
}
return true;
} catch (InvalidStateEx ex) {
return false;
}
}
public boolean
conference()
{
int countCalls = 0;
// if there's connecting calls, we can't do this yet
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null) {
countCalls++;
if (c.isConnecting()) {
return false;
}
}
}
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null) {
c.state = CallInfo.State.ACTIVE;
if (countCalls > 0) {
c.isMpty = true;
}
}
}
return true;
}
public boolean
explicitCallTransfer()
{
int countCalls = 0;
// if there's connecting calls, we can't do this yet
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null) {
countCalls++;
if (c.isConnecting()) {
return false;
}
}
}
// disconnect the subscriber from both calls
return triggerHangupAll();
}
public boolean
onDial(String address)
{
CallInfo call;
int freeSlot = -1;
Log.d("GSM", "SC> dial '" + address + "'");
if (nextDialFailImmediately) {
nextDialFailImmediately = false;
Log.d("GSM", "SC< dial fail (per request)");
return false;
}
String phNum = PhoneNumberUtils.extractNetworkPortion(address);
if (phNum.length() == 0) {
Log.d("GSM", "SC< dial fail (invalid ph num)");
return false;
}
// Ignore setting up GPRS
if (phNum.startsWith("*99") && phNum.endsWith("#")) {
Log.d("GSM", "SC< dial ignored (gprs)");
return true;
}
// There can be at most 1 active "line" when we initiate
// a new call
try {
if (countActiveLines() > 1) {
Log.d("GSM", "SC< dial fail (invalid call state)");
return false;
}
} catch (InvalidStateEx ex) {
Log.d("GSM", "SC< dial fail (invalid call state)");
return false;
}
for (int i = 0 ; i < calls.length ; i++) {
if (freeSlot < 0 && calls[i] == null) {
freeSlot = i;
}
if (calls[i] != null && !calls[i].isActiveOrHeld()) {
// Can't make outgoing calls when there is a ringing or
// connecting outgoing call
Log.d("GSM", "SC< dial fail (invalid call state)");
return false;
} else if (calls[i] != null && calls[i].state == CallInfo.State.ACTIVE) {
// All active calls behome held
calls[i].state = CallInfo.State.HOLDING;
}
}
if (freeSlot < 0) {
Log.d("GSM", "SC< dial fail (invalid call state)");
return false;
}
calls[freeSlot] = CallInfo.createOutgoingCall(phNum);
if (autoProgressConnecting) {
sendMessageDelayed(
obtainMessage(EVENT_PROGRESS_CALL_STATE, calls[freeSlot]),
CONNECTING_PAUSE_MSEC);
}
Log.d("GSM", "SC< dial (slot = " + freeSlot + ")");
return true;
}
public List<DriverCall>
getDriverCalls()
{
ArrayList<DriverCall> ret = new ArrayList<DriverCall>(calls.length);
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null) {
DriverCall dc;
dc = c.toDriverCall(i + 1);
ret.add(dc);
}
}
Log.d("GSM", "SC< getDriverCalls " + ret);
return ret;
}
public List<String>
getClccLines()
{
ArrayList<String> ret = new ArrayList<String>(calls.length);
for (int i = 0 ; i < calls.length ; i++) {
CallInfo c = calls[i];
if (c != null) {
ret.add((c.toCLCCLine(i + 1)));
}
}
return ret;
}
private int
countActiveLines() throws InvalidStateEx
{
boolean hasMpty = false;
boolean hasHeld = false;
boolean hasActive = false;
boolean hasConnecting = false;
boolean hasRinging = false;
boolean mptyIsHeld = false;
for (int i = 0 ; i < calls.length ; i++) {
CallInfo call = calls[i];
if (call != null) {
if (!hasMpty && call.isMpty) {
mptyIsHeld = call.state == CallInfo.State.HOLDING;
} else if (call.isMpty && mptyIsHeld
&& call.state == CallInfo.State.ACTIVE
) {
Log.e("ModelInterpreter", "Invalid state");
throw new InvalidStateEx();
} else if (!call.isMpty && hasMpty && mptyIsHeld
&& call.state == CallInfo.State.HOLDING
) {
Log.e("ModelInterpreter", "Invalid state");
throw new InvalidStateEx();
}
hasMpty |= call.isMpty;
hasHeld |= call.state == CallInfo.State.HOLDING;
hasActive |= call.state == CallInfo.State.ACTIVE;
hasConnecting |= call.isConnecting();
hasRinging |= call.isRinging();
}
}
int ret = 0;
if (hasHeld) ret++;
if (hasActive) ret++;
if (hasConnecting) ret++;
if (hasRinging) ret++;
return ret;
}
}
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