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pmodeme.cxx
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pmodeme.cxx
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/*
* pmodeme.cxx
*
* T38FAX Pseudo Modem
*
* Copyright (c) 2001-2011 Vyacheslav Frolov
*
* Open H323 Project
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Open H323 Library.
*
* The Initial Developer of the Original Code is Vyacheslav Frolov
*
* Contributor(s): Equivalence Pty ltd
*
* $Log: pmodeme.cxx,v $
* Revision 1.107 2011-01-19 17:17:54 vfrolov
* Extended AT#CIDFMT command for setting value format for NMBR tag
*
* Revision 1.107 2011/01/19 17:17:54 vfrolov
* Extended AT#CIDFMT command for setting value format for NMBR tag
*
* Revision 1.106 2011/01/14 20:32:11 vfrolov
* Added DATE, TIME and NAME tags to Caller ID report
* Added AT#CIDFMT command
*
* Revision 1.105 2011/01/12 12:23:43 vfrolov
* Replaced hardcoded workaround for mgetty-voice by conditional one
*
* Revision 1.104 2010/12/28 12:29:07 vfrolov
* Disabled echo in non-command state
*
* Revision 1.103 2010/10/12 16:46:25 vfrolov
* Implemented fake streams
*
* Revision 1.102 2010/10/08 12:31:03 vfrolov
* Optimized Mutex usage
*
* Revision 1.101 2010/10/08 06:06:39 vfrolov
* Added diagErrorMask
*
* Revision 1.100 2010/10/06 16:54:19 vfrolov
* Redesigned engine opening/closing
*
* Revision 1.99 2010/10/06 10:13:23 vfrolov
* Fixed previous fix
*
* Revision 1.98 2010/10/06 09:06:48 vfrolov
* Fixed crash at dialing reset (reported by gorod225)
*
* Revision 1.97 2010/09/29 11:52:59 vfrolov
* Redesigned engine attaching/detaching
*
* Revision 1.96 2010/09/22 15:51:13 vfrolov
* Moved ResetModemState() to EngineBase
*
* Revision 1.95 2010/09/14 06:35:10 vfrolov
* Implemented dial string terminated by a semicolon ("ATD<dialstring>;[...]")
*
* Revision 1.94 2010/09/10 18:08:07 vfrolov
* Implemented +VTD command
* Cleaned up code
*
* Revision 1.93 2010/09/10 05:34:12 vfrolov
* Allowed "+ A B C D" dialing digits
* Added ignoring unrecognized dialing digits (V.250)
* Added missing on-hook's
*
* Revision 1.92 2010/09/08 17:22:23 vfrolov
* Redesigned modem engine (continue)
*
* Revision 1.91 2010/07/09 04:46:55 vfrolov
* Implemented alternate route
*
* Revision 1.90 2010/07/08 05:11:34 vfrolov
* Redesigned modem engine (continue)
*
* Revision 1.89 2010/07/07 13:40:56 vfrolov
* Fixed ussue with call clearing in stSend state
* Added missing responce tracing
*
* Revision 1.88 2010/07/07 08:22:47 vfrolov
* Redesigned modem engine
*
* Revision 1.87 2010/03/23 08:58:14 vfrolov
* Fixed issues with +FTS and +FRS
*
* Revision 1.86 2010/03/18 08:42:17 vfrolov
* Added named tracing of data types
*
* Revision 1.85 2010/02/05 14:55:33 vfrolov
* Used S7 timeout
*
* Revision 1.84 2010/02/02 09:51:11 vfrolov
* Added missing timerRing.Stop()
*
* Revision 1.83 2010/02/02 08:41:56 vfrolov
* Implemented ringing indication for voice class dialing
*
* Revision 1.82 2010/01/28 10:30:37 vfrolov
* Added cleaning user input buffers for non-audio classes
*
* Revision 1.81 2010/01/27 14:03:38 vfrolov
* Added missing mutexes
*
* Revision 1.80 2010/01/22 14:11:40 vfrolov
* Added missing characters # and * for extension numbers
* Thanks to Dmitry
*
* Revision 1.79 2009/12/02 09:06:42 vfrolov
* Added a short delay after transmitting of signal before call clearing
*
* Revision 1.78 2009/11/20 16:37:27 vfrolov
* Fixed audio class application blocking by forced T.38 mode
*
* Revision 1.77 2009/11/19 11:18:16 vfrolov
* Added handling T.38 CED indication
*
* Revision 1.76 2009/11/18 19:08:47 vfrolov
* Moved common code to class EngineBase
*
* Revision 1.75 2009/11/17 11:25:48 vfrolov
* Added missing delay before sending fax-no-force requestmode
* Redesigned handling stConnectHandle state
*
* Revision 1.74 2009/11/06 10:02:29 vfrolov
* Fixed typo in fax-no-force
*
* Revision 1.73 2009/11/02 18:06:33 vfrolov
* Added fax-no-forse requestmode
*
* Revision 1.72 2009/10/27 18:25:22 vfrolov
* Added reseting send state on detaching engines
*
* Revision 1.71 2009/10/01 13:31:12 vfrolov
* Ported to OPAL SVN trunk
*
* Revision 1.70 2009/07/29 17:12:35 vfrolov
* Wait audioEngine on stConnectHandle
*
* Revision 1.69 2009/07/10 15:23:31 vfrolov
* Implicitly dial modifier '@' will continue of called number
*
* Revision 1.68 2009/07/10 14:04:13 vfrolov
* Changed usage multiple dial modifiers '@'
* each next '@' overrides previous '@'
* ("ATD4444@123@456" eq "ATD4444@456", "ATD4444@123@" eq "ATD4444")
* Dial modifiers (except 'D') can be used after '@'
* Dial modifiers 'T' and 'P' can be used instead 'D'
*
* Revision 1.67 2009/07/06 08:28:44 vfrolov
* Added DTMF shielding
*
* Revision 1.66 2009/07/03 16:38:17 vfrolov
* Added more state tracing
*
* Revision 1.65 2009/07/03 16:22:56 vfrolov
* Added missing pPlayTone deletings
* Added more state tracing
*
* Revision 1.64 2009/07/02 15:09:48 vfrolov
* Improved state tracing
*
* Revision 1.63 2009/07/02 06:55:30 vfrolov
* Fixed +VSM=? and +VLS=? for modem type autodetecting by VentaFax
* Thanks Dmitry (gorod225)
*
* Revision 1.62 2009/07/02 05:41:37 vfrolov
* Enabled +VIT > 0 (for compatibility with some voice applications)
*
* Revision 1.61 2009/07/01 15:11:58 vfrolov
* Fixed codec 128,"8-BIT LINEAR"
*
* Revision 1.60 2009/07/01 10:52:06 vfrolov
* Enabled +VSM=<cml> w/o <vsr>
*
* Revision 1.59 2009/07/01 08:20:39 vfrolov
* Implemented +VIP command
*
* Revision 1.58 2009/06/30 13:55:27 vfrolov
* Added +VSM codecs
* 128,"8-BIT LINEAR",8,0,(8000),(0),(0)
* 130,"UNSIGNED PCM",8,0,(8000),(0),(0)
* 131,"G.711 ULAW",8,0,(8000),(0),(0)
* Added +VLS
* 5,"ST",00000000,00000000,00000000
*
* Revision 1.57 2009/06/30 10:50:33 vfrolov
* Added +VSM codecs
* 0,"SIGNED PCM",8,0,(8000),(0),(0)
* 1,"UNSIGNED PCM",8,0,(8000),(0),(0)
*
* Revision 1.56 2009/06/29 15:36:38 vfrolov
* Added ability to dial in connection establised state
*
* Revision 1.55 2009/06/29 13:28:42 vfrolov
* Added +VSM codecs
* 4,"G711U",8,0,(8000),(0),(0)
* 5,"G711A",8,0,(8000),(0),(0)
*
* Revision 1.54 2009/06/25 16:48:52 vfrolov
* Added stub for +VSD command
*
* Revision 1.53 2009/06/25 12:46:38 vfrolov
* Implemented dialing followed answering ("ATD<dialstring>;A")
*
* Revision 1.52 2009/06/24 13:12:58 vfrolov
* Implemented +VEM and +VIT commands
*
* Revision 1.51 2009/06/24 12:48:37 vfrolov
* Added stubs for +VGR and +VGT commands
*
* Revision 1.50 2009/06/24 12:19:01 vfrolov
* Added stubs for +VRA and +VRN
*
* Revision 1.49 2009/06/24 08:04:46 vfrolov
* Added semicolon concatenating of commands
*
* Revision 1.48 2009/06/22 16:05:48 vfrolov
* Added ability to dial extension numbers
*
* Revision 1.47 2009/05/06 09:17:23 vfrolov
* Enabled dialing characters # and *
*
* Revision 1.46 2008/09/10 11:15:00 frolov
* Ported to OPAL SVN trunk
*
* Revision 1.45 2008/09/10 07:05:06 frolov
* Fixed doubled mutex lock
*
* Revision 1.44 2007/08/27 10:55:21 vfrolov
* Added missing moreFrames = FALSE
*
* Revision 1.43 2007/08/24 16:12:14 vfrolov
* Disabled CNG sending in voice class mode
*
* Revision 1.42 2007/05/04 09:58:57 vfrolov
* Fixed Attach(audioEngine)
*
* Revision 1.41 2007/04/24 16:26:02 vfrolov
* Fixed unexpected state change
*
* Revision 1.40 2007/04/09 08:07:12 vfrolov
* Added symbolic logging ModemCallbackParam
*
* Revision 1.39 2007/03/30 07:56:36 vfrolov
* Included g711.c
*
* Revision 1.38 2007/03/23 14:54:20 vfrolov
* Fixed compiler warnings
*
* Revision 1.37 2007/03/23 10:14:35 vfrolov
* Implemented voice mode functionality
*
* Revision 1.36 2007/03/22 16:26:04 vfrolov
* Fixed compiler warnings
*
* Revision 1.35 2007/02/22 16:00:33 vfrolov
* Implemented AT#HCLR command
*
* Revision 1.34 2006/12/11 11:19:48 vfrolov
* Fixed race condition with modem Callback
*
* Revision 1.33 2006/12/07 10:53:24 vfrolov
* Added OnParentStop()
*
* Revision 1.32 2006/12/01 13:35:25 vfrolov
* Fixed modem locking after unexpected dial while connection
*
* Revision 1.31 2005/11/22 16:39:36 vfrolov
* Fixed MSVC compile warning
*
* Revision 1.30 2005/03/05 15:42:39 vfrolov
* Added missing check for PTRACING
* Fixed typo in T38DLE trace
*
* Revision 1.29 2005/03/04 16:35:38 vfrolov
* Implemented AT#DFRMC command
* Redisigned class Profile
*
* Revision 1.28 2005/02/16 12:14:47 vfrolov
* Send CONNECT just before data for AT+FRM command
*
* Revision 1.27 2005/02/10 10:35:18 vfrolov
* Fixed AT prefix searching
*
* Revision 1.26 2005/02/03 11:32:11 vfrolov
* Fixed MSVC compile warnings
*
* Revision 1.25 2005/02/01 11:43:46 vfrolov
* Implemented ATV0 command (numeric format for result codes)
* Implemented AT+FMI?, AT+FMM? and AT+FMR? commands
* Added stubs for ATBn, ATX3 and AT+FCLASS=0 commands
* Added stub for AT+FLO command
*
* Revision 1.24 2004/10/27 13:36:26 vfrolov
* Decreased binary, DLE, and callback tracing
*
* Revision 1.23 2004/07/06 16:07:24 vfrolov
* Included ptlib.h for precompiling
*
* Revision 1.22 2004/06/24 17:20:22 vfrolov
* Added stub for ATXn command
*
* Revision 1.21 2004/05/09 07:46:11 csoutheren
* Updated to compile with new PIsDescendant function
*
* Revision 1.20 2004/03/01 17:14:34 vfrolov
* Fixed binary log in command mode
*
* Revision 1.19 2003/12/04 16:09:51 vfrolov
* Implemented FCS generation
* Implemented ECM support
*
* Revision 1.18 2003/01/08 16:58:58 vfrolov
* Added cbpOutBufNoFull and isOutBufFull()
*
* Revision 1.17 2002/12/30 12:49:29 vfrolov
* Added tracing thread's CPU usage (Linux only)
*
* Revision 1.16 2002/12/20 10:12:50 vfrolov
* Implemented tracing with PID of thread (for LinuxThreads)
* or ID of thread (for other POSIX Threads)
*
* Revision 1.15 2002/12/19 10:31:33 vfrolov
* Changed usage multiple dial modifiers 'L' (for secure reasons)
* each next 'L' overrides previous 'L'
* ("ATD4444L123L456" eq "ATD4444L456", "ATD4444L123L" eq "ATD4444")
* Added dial modifier 'D' - continue dial number
* ("ATD000L123D4444" eq "ATD0004444L123")
* Added mising spaces into "NMBR = " and "NDID = "
*
* Revision 1.14 2002/11/05 13:59:11 vfrolov
* Implemented Local Party Number dial modifier 'L'
* (put dial string 1234L5678 to dial 1234 from 5678)
*
* Revision 1.13 2002/05/15 16:10:52 vfrolov
* Reimplemented AT+FTS and AT+FRS
* Added workaround "Reset state stSendAckWait"
*
* Revision 1.12 2002/05/07 10:36:16 vfrolov
* Added more code for case stResetHandle
* Changed duration of CED (T.30 requires 2.6...4.0 secs)
*
* Revision 1.11 2002/04/19 14:06:04 vfrolov
* Implemented T.38 mode request dial modifiers
* F - enable
* V - disable
*
* Revision 1.10 2002/04/03 02:45:36 vfrolov
* Implemented AT#CID=10 - ANI/DNIS reporting between RINGs
*
* Revision 1.9 2002/03/01 14:59:48 vfrolov
* Get data for Revision string from version.h
*
* Revision 1.8 2002/03/01 10:00:26 vfrolov
* Added Copyright header
* Implemented connection established handling and mode change request
* Implemented ATI8 command
* Fixed some deadlocks
* Added some other changes
*
* Revision 1.7 2002/02/11 08:40:15 vfrolov
* More clear call implementation
*
* Revision 1.6 2002/01/10 06:10:02 craigs
* Added MPL header
*
* Revision 1.5 2002/01/06 03:48:45 craigs
* Added changes to support efax 0.9
* Thanks to Vyacheslav Frolov
*
* Revision 1.4 2002/01/03 21:36:00 craigs
* Added change to use S1 register for number of rings on answer
* Thanks to Vyacheslav Frolov
*
* Revision 1.3 2002/01/02 04:49:37 craigs
* Added support for ATS0 register
*
* Revision 1.2 2002/01/01 23:59:52 craigs
* Lots of additional implementation thanks to Vyacheslav Frolov
*
*/
#include <ptlib.h>
#include <ptclib/dtmf.h>
#include "pmodemi.h"
#include "pmodeme.h"
#include "dle.h"
#include "fcs.h"
#include "t38engine.h"
#include "version.h"
///////////////////////////////////////////////////////////////
static const char Manufacturer[] = "Frolov,Holtschneider,Davidson";
static const char Model[] = "T38FAX";
#define _TOSTR(s) #s
#define TOSTR(s) _TOSTR(s)
static const char Revision[] = TOSTR(MAJOR_VERSION) "." TOSTR(MINOR_VERSION) "." TOSTR(BUILD_NUMBER);
///////////////////////////////////////////////////////////////
#define DeclareStringParam(name) \
public: \
void name(const PString &_s##name) { s##name = _s##name; } \
const PString &name() const { return s##name; } \
protected: \
PString s##name;
///////////////////////////////////////////////////////////////
class Profile
{
protected:
#define PROFILE_SIZE_STD 40
#define PROFILE_SIZE_EXT 10
#define PROFILE_SIZE_VOICE 10
#define PROFILE_SIZE (PROFILE_SIZE_STD + PROFILE_SIZE_EXT + PROFILE_SIZE_VOICE)
enum {
MinRegStd = 0,
MaxRegStd = MinRegStd + PROFILE_SIZE_STD - 1,
MinRegExt = MaxRegStd + 1,
MaxRegExt = MinRegExt + PROFILE_SIZE_EXT - 1,
MinRegVoice = MaxRegExt + 1,
MaxRegVoice = MinRegVoice + PROFILE_SIZE_VOICE - 1,
MaxBit = 7,
};
public:
Profile();
#define DeclareRegisterBit(name, byte, bit) \
void name(PBoolean val) { SetBit(byte, bit, val); } \
PBoolean name() const { PBoolean val; GetBit(byte, bit, val); return val; }
DeclareRegisterBit(Echo, 23, 0);
DeclareRegisterBit(asciiResultCodes, 23, 6);
DeclareRegisterBit(noResultCodes, 23, 7);
#define DeclareRegisterByte(name, byte) \
void name(BYTE val) { SetReg(byte, val); } \
BYTE name() const { BYTE val; GetReg(byte, val); return val; }
DeclareRegisterByte(AutoAnswer, 0);
DeclareRegisterByte(RingCount, 1);
DeclareRegisterByte(S7, 7);
DeclareRegisterByte(DialTimeComma, 8);
DeclareRegisterByte(DialTimeDTMF, 11);
DeclareRegisterByte(IfcByDCE, MinRegExt + 0);
DeclareRegisterByte(IfcByDTE, MinRegExt + 1);
DeclareRegisterByte(ClearMode, MinRegExt + 2);
DeclareRegisterByte(DelayFrmConnect, MinRegExt + 3);
DeclareRegisterByte(DidMode, MinRegExt + 4);
DeclareRegisterByte(CidMode, MinRegExt + 5);
#if 5 >= PROFILE_SIZE_EXT
#error *** The PROFILE_SIZE_EXT is too small to declare register ***
#endif
DeclareRegisterByte(Vtd, MinRegVoice + 0);
DeclareRegisterByte(Vcml, MinRegVoice + 1);
DeclareRegisterByte(Vsds, MinRegVoice + 2);
DeclareRegisterByte(Vsdi, MinRegVoice + 3);
DeclareRegisterByte(VgrInterval, MinRegVoice + 4);
DeclareRegisterByte(VgtInterval, MinRegVoice + 5);
DeclareRegisterByte(VraInterval, MinRegVoice + 6);
DeclareRegisterByte(VrnInterval, MinRegVoice + 7);
DeclareRegisterByte(CidNameFmt, MinRegVoice + 8);
DeclareRegisterByte(CidNmbrFmt, MinRegVoice + 9);
#if 9 >= PROFILE_SIZE_VOICE
#error *** The PROFILE_SIZE_VOICE is too small to declare register ***
#endif
void Flo(BYTE val) { IfcByDTE(val); IfcByDCE(val); }
BYTE Flo() const {
if (IfcByDTE() == IfcByDCE())
return IfcByDTE();
return 255;
}
PBoolean SetBit(PINDEX r, PINDEX b, PBoolean val) {
if( !ChkRB(r, b) ) return FALSE;
BYTE msk = MaskB(b);
if( val ) S[r] |= msk;
else S[r] &= ~msk;
return TRUE;
}
PBoolean GetBit(PINDEX r, PINDEX b, PBoolean &val) const {
if (!ChkRB(r, b)) {
val = 0;
return FALSE;
}
BYTE msk = MaskB(b);
val = (S[r] & msk) ? TRUE : FALSE;
return TRUE;
}
PBoolean SetReg(PINDEX r, BYTE val) {
if( !ChkR(r) ) return FALSE;
S[r] = val;
return TRUE;
}
PBoolean GetReg(PINDEX r, BYTE &val) const {
if (!ChkR(r)) {
val = 0;
return FALSE;
}
val = S[r];
return TRUE;
}
PBoolean SetBits(PINDEX r, PINDEX bl, PINDEX bh, BYTE val) {
if( !ChkRBB(r, bl, bh) ) return FALSE;
BYTE msk = MaskBB(bl, bh);
S[r] &= ~msk;
S[r] &= (val << bl) & msk;
return TRUE;
}
PBoolean GetBits(PINDEX r, PINDEX bl, PINDEX bh, BYTE &val) const {
if (!ChkRBB(r, bl, bh)) {
val = 0;
return FALSE;
}
BYTE msk = MaskBB(bl, bh);
val = BYTE((S[r] & msk) >> bl);
return TRUE;
}
Profile &operator=(const Profile &p);
Profile &SetVoiceProfile(const Profile &p);
void ModemClass(const PString &_modemClass) {
modemClass = _modemClass;
if (modemClass == "1") {
modemClassId = EngineBase::mcFax;
}
#ifdef AUD
else
if (modemClass == "8") {
modemClassId = EngineBase::mcAudio;
}
#endif
else {
modemClassId = EngineBase::mcUndefined;
}
}
const PString &ModemClass() const { return modemClass; }
EngineBase::ModemClass ModemClassId() const { return modemClassId; }
protected:
static PBoolean ChkR(PINDEX r) {
return r < PROFILE_SIZE;
}
static PBoolean ChkB(PINDEX b) {
return b <= MaxBit;
}
static PBoolean ChkRB(PINDEX r, PINDEX b) {
return ChkR(r) && ChkB(b);
}
static PBoolean ChkRBB(PINDEX r, PINDEX bl, PINDEX bh) {
return ChkR(r) && ChkB(bl) && ChkB(bh) && bl <= bh;
}
static BYTE MaskB(PINDEX b) {
return "\x01\x02\x04\x08\x10\x20\x40\x80"[b];
}
static BYTE MaskBB(PINDEX bl, PINDEX bh) { // bl <= bh
return BYTE(("\x01\x03\x07\x0F\x1F\x3F\x7F\xFF"[bh - bl]) << bl);
}
BYTE S[PROFILE_SIZE]; // S-registers
PString modemClass;
EngineBase::ModemClass modemClassId;
#undef PROFILE_SIZE
#undef PROFILE_SIZE_VOICE
#undef PROFILE_SIZE_EXT
#undef PROFILE_SIZE_STD
};
static const Profile Profiles[1];
///////////////////////////////////////////////////////////////
class Timeout : public PTimer
{
PCLASSINFO(Timeout, PTimer);
public:
Timeout(const PNotifier &callback, PBoolean _continuous = FALSE)
: state(0), continuous(_continuous) {
SetNotifier(callback);
}
void Start(unsigned period) {
PWaitAndSignal mutexWait(Mutex);
state = 1;
if( continuous ) {
RunContinuous(period);
OnTimeout();
} else {
PTimer::operator=(period);
}
}
void Stop() {
PWaitAndSignal mutexWait(Mutex);
state = 0;
PTimer::operator=(0);
}
PBoolean Get() {
PWaitAndSignal mutexWait(Mutex);
if (state == 2) {
state = continuous ? 1 : 0;
return TRUE;
}
return FALSE;
}
protected:
void OnTimeout() {
PWaitAndSignal mutexWait(Mutex);
if( state == 1 )
state = 2;
PTimer::OnTimeout();
}
int state;
PBoolean continuous;
PMutex Mutex;
};
///////////////////////////////////////////////////////////////
enum CallState { // ---------+---------------------------+--------+------------------------------------------------+
// | on sending command | on | on received command |
// +---------------------------+clearing+------------------------------------------------+
// |"dial"|"answer"|"clearcall"|off_hook|"call"|"alerting"|"established"| "clearcall" |
// ---------+------+--------+-----+-----+--------+------+----------+-------------+----------+-----+
// off_hook | true | true |true |false| true |false | true | true | true |false|
// ---------+------+--------+-----+-----+--------+------+----------+-------------+----------+-----+
cstCleared, // )--+ <--+ <--+ )--+ <--+ <--+ |
// | | | | | | |
// | | | | | | |
cstDialing, // <--+ )--+ )--+ )--+ | )--+ )--+ )--+ )--+ )--+ |
// | | | | | | | | |
cstAlerted, // )--+ )--+ )--+ | <--+ )--+ )--+ )--+ |
// | | | | | | | |
// | | | | | | | |
cstCalled, // )--+ )--+ )--+ | <--+ | | )--+ |
// | | | | | | | |
cstAnswering, // <--+ )--+ )--+ )--+ )--+ )--+ )--+ |
// | | | | | | |
// | | | | | | |
cstEstablished, // )--+ )--+ )--+ <--+ )--+ )--+ |
// | | | | | |
cstReleasing, // <--+ )--+ )--+ <--+ )--+ |
}; // ---------+------+--------+-----+-----+--------+------+----------+-------------+----------+-----+
#if PTRACING
static ostream & operator<<(ostream & out, CallState state)
{
switch (state) {
case cstCleared: return out << "cstCleared";
case cstDialing: return out << "cstDialing";
case cstAlerted: return out << "cstAlerted";
case cstCalled: return out << "cstCalled";
case cstAnswering: return out << "cstAnswering";
case cstEstablished: return out << "cstEstablished";
case cstReleasing: return out << "cstReleasing";
}
return out << "cst" << INT(state);
}
#endif
///////////////////////////////////////////////////////////////
#if PTRACING
struct CallStateAndSubState {
CallStateAndSubState(CallState s, int ss) : state(s), subState(ss) {}
CallState state;
int subState;
};
static ostream & operator<<(ostream & out, const CallStateAndSubState &stateAndSubState)
{
out << stateAndSubState.state;
if (stateAndSubState.state == cstReleasing)
out << "." << stateAndSubState.subState;
return out;
}
#endif
///////////////////////////////////////////////////////////////
enum State {
stCommand,
stDial,
stConnectWait,
stConnectHandle,
stReqModeAckWait,
stReqModeAckHandle,
stSend,
stSendBufEmptyHandle,
stSendAckWait,
stSendAckHandle,
stRecvBegWait,
stRecvBegHandle,
stRecv,
};
#if PTRACING
static ostream & operator<<(ostream & out, State state)
{
switch (state) {
case stCommand: return out << "stCommand";
case stDial: return out << "stDial";
case stConnectWait: return out << "stConnectWait";
case stConnectHandle: return out << "stConnectHandle";
case stReqModeAckWait: return out << "stReqModeAckWait";
case stReqModeAckHandle: return out << "stReqModeAckHandle";
case stSend: return out << "stSend";
case stSendBufEmptyHandle: return out << "stSendBufEmptyHandle";
case stSendAckWait: return out << "stSendAckWait";
case stSendAckHandle: return out << "stSendAckHandle";
case stRecvBegWait: return out << "stRecvBegWait";
case stRecvBegHandle: return out << "stRecvBegHandle";
case stRecv: return out << "stRecv";
}
return out << "st" << INT(state);
}
#endif
///////////////////////////////////////////////////////////////
enum SubStateConnectHandle {
chConnected,
#ifdef AUD
chWaitAudioEngine,
chAudioEngineAttached,
chWaitPlayTone,
chTonePlayed,
#endif
chConnectionEstablishDelay,
chConnectionEstablished,
};
#if PTRACING
static ostream & operator<<(ostream & out, SubStateConnectHandle subState)
{
switch (subState) {
case chConnected: return out << "chConnected";
#ifdef AUD
case chWaitAudioEngine: return out << "chWaitAudioEngine";
case chAudioEngineAttached: return out << "chAudioEngineAttached";
case chWaitPlayTone: return out << "chWaitPlayTone";
case chTonePlayed: return out << "chTonePlayed";
#endif
case chConnectionEstablishDelay: return out << "chConnectionEstablishDelay";
case chConnectionEstablished: return out << "chConnectionEstablished";
}
return out << "ch" << INT(subState);
}
#endif
///////////////////////////////////////////////////////////////
#if PTRACING
struct StateAndSubState {
StateAndSubState(State s, int ss) : state(s), subState(ss) {}
State state;
int subState;
};
static ostream & operator<<(ostream & out, const StateAndSubState &stateAndSubState)
{
out << stateAndSubState.state;
if (stateAndSubState.state == stConnectHandle)
out << "." << SubStateConnectHandle(stateAndSubState.subState);
return out;
}
#endif
///////////////////////////////////////////////////////////////
enum ModemClassEngine {
#ifdef AUD
mceAudio,
#endif
mceT38,
mceNumberOfItems,
};
#if PTRACING
static ostream & operator<<(ostream & out, ModemClassEngine mce)
{
switch (mce) {
#ifdef AUD
case mceAudio: return out << "mceAudio";
#endif
case mceT38: return out << "mceT38";
default: break;
}
return out << "mce" << INT(mce);
}
#endif
///////////////////////////////////////////////////////////////
#define DeclareResultCode(name, v0, v1) \
PString name() const { return P.asciiResultCodes() ? (v1) : (v0); }
///////////////////////////////////////////////////////////////
class ModemEngineBody : public PObject
{
PCLASSINFO(ModemEngineBody, PObject);
public:
/**@name Construction */
//@{
ModemEngineBody(ModemEngine &_parent, const PNotifier &_callbackEndPoint);
~ModemEngineBody();
//@}
/**@name Operations */
//@{
PBoolean Request(PStringToString &request);
EngineBase *NewPtrEngine(ModemClassEngine mce);
void OnParentStop();
void HandleData(const PBYTEArray &buf, PBYTEArray &bresp);
void CheckState(PBYTEArray &bresp);
void CheckStatePost();
PBoolean IsReady() const {
PWaitAndSignal mutexWait(Mutex);
return state == stCommand && !off_hook && callState == cstCleared && (PTime() - lastOnHookActivity) > 5*1000;
}
PBoolean isOutBufFull() const {
PWaitAndSignal mutexWait(Mutex);
return currentClassEngine && currentClassEngine->isOutBufFull();
}
//@}
protected:
PBoolean Echo() const { return P.Echo(); }
PBoolean HandleClass1Cmd(const char **ppCmd, PString &resp, PBoolean &ok, PBoolean &crlf);
PBoolean HandleClass8Cmd(const char **ppCmd, PString &resp, PBoolean &ok, PBoolean &crlf);
PBoolean Answer();
void HandleCmd(PString &resp);
void HandleCmdRest(PString &resp);
unsigned EstablishmentTimeout() const {
return unsigned(P.S7() ? P.S7() : Profiles[0].S7()) * 1000;
}
void ResetDleData() {
dleData.Clean();
dataCount = 0;
moreFrames = FALSE;
}
PBoolean SetBitRevDleData() {
switch (P.ModemClassId()) {
#ifdef AUD
case EngineBase::mcAudio:
dleData.BitRev(
#ifdef ALAW_132_BIT_REVERSE
P.Vcml() == 132 ? TRUE :
#endif
FALSE);
break;
#endif
case EngineBase::mcFax:
dleData.BitRev(TRUE);
break;
default:
return FALSE;
}
return TRUE;
}
PBoolean SendSilence(int ms) {
if (P.ModemClassId() == EngineBase::mcFax && currentClassEngine) {
dataType = EngineBase::dtSilence;
SetState(stSend);
if (currentClassEngine->SendStart(dataType, ms)) {
SetState(stSendAckWait);
if (currentClassEngine->SendStop(FALSE, NextSeq()))
return TRUE;
}
}
SetState(stCommand);
return FALSE;
}
PBoolean _SendStart(EngineBase::DataType dt, int br, PString &resp) {
dataType = dt;
ResetDleData();
SetBitRevDleData();
SetState(stSend);
if (!currentClassEngine || !currentClassEngine->SendStart(dataType, br)) {
SetState(stCommand);
return FALSE;
}
resp = RC_CONNECT();
return TRUE;
}
PBoolean SendStart(EngineBase::DataType dt, int br, PString &resp) {
PWaitAndSignal mutexWait(Mutex);
return _SendStart(dt, br, resp);
}
PBoolean RecvStart(EngineBase::DataType dt, int br) {
PBoolean done = FALSE;
PWaitAndSignal mutexWait(Mutex);
dataType = dt;
SetBitRevDleData();
SetState(stRecvBegWait);
timeout.Start(60000);
if (!currentClassEngine || !currentClassEngine->RecvWait(dataType, br, NextSeq(), done)) {
SetState(stCommand);
timeout.Stop();
return FALSE;
}
if (done) {
SetState(stRecvBegHandle);
timeout.Stop();
parent.SignalDataReady();
}
return TRUE;
}
void _AttachEngine(ModemClassEngine mce);
void _DetachEngine(ModemClassEngine mce);
void _ClearCall();
int NextSeq() { ++seq; return seq &= EngineBase::cbpUserDataMask; }
ModemEngine &parent;
EngineBase *activeEngines[mceNumberOfItems];
EngineBase *currentClassEngine;
PBoolean enableFakeIn[mceNumberOfItems];
PBoolean enableFakeOut[mceNumberOfItems];
const PNotifier callbackEndPoint;
PDECLARE_NOTIFIER(PObject, ModemEngineBody, OnEngineCallback);
PDECLARE_NOTIFIER(PObject, ModemEngineBody, OnTimerCallback);
const PNotifier engineCallback;
const PNotifier timerCallback;
Timeout timerRing;
Timeout timerBusy;
Timeout timeout;
PTime lastOnHookActivity;
int seq;
PBoolean forceFaxMode;
PBoolean connectionEstablished;
PBoolean off_hook;
int lockReleasingState;
enum CallDirection {
cdUndefined,
cdOutgoing,
cdIncoming,
};
CallDirection callDirection;
CallState callState;
int callSubState;
State state;
int subState;
#define TRACE_STATE(level, header) \
myPTRACE(level, "T38Modem\t" << header \
" " << (off_hook ? "off" : "on") << "-hook" \
" " << CallStateAndSubState(callState, callSubState) << \
" " << StateAndSubState(state, subState))
PBoolean OffHook() {
if (!off_hook) {
off_hook = TRUE;
TRACE_STATE(4, "ModemEngineBody::OffHook:");