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/***************************************************************************
Name : T30.H Comment : Main include file for T30 driver. All common structire defns etc. Functions: (see Prototypes just below)
Revision Log Date Name Description -------- ----- ---------------------------------------------------------***************************************************************************/
#include "timeouts.h"
/**---------------------- #define of sizes of things ---------------------
Frames can be at most 2.55 secs (sent) or 3.45 secs (recvd) long, or 2.55 * 300/8 = 96 bytes and 132 bytes long respectively
For clumps of received frames, we collect them in a GlobalAlloced space for passing to teh WhatNext callback function. We arbitrarily decide to allow at most 10 frames and at most 500 bytes at a time. (500 bytes = 500/(300/8) = 13.33 secs, so that should be quite enough)
---------------------- #define of sizes of things ---------------------**/
//#define ECM_TOTALFRAMESIZE (ECM_FRAME_SIZE + 4)
// Used for calling ModemSync(). The shorter one during calls,
// the longer one only on hangup and stuff
#define RESYNC_TIMEOUT1 1100
#define RESYNC_TIMEOUT2 500
// This are way too long. We have built-in delays anyway, so don't need
// the full time, and the recvrs have to recv from other fax machines
// so take it easy here
// #define PHASEC_PAUSE 100 // how long to pause before TCF/phase C
#define RECV_PHASEC_PAUSE 55 // used by RecvSil() before TCF/phase C
// ModemRecvSilence() always waits a bit longer than the amount requested
// so to get it right we ask for the minimum required, i.e. 55ms
// However ModemSendSilence() is pretty accurate, so ask for teh exact
// nominal amount, i.e. 75ms
// How long to try for AT+FRM before timing out and trying
// for an AT+FRH instead. Must be 100% *sure* to get page if there
// is one, because there's no recovery after missing that. But must
// also be sure to get the 2nd CTC if there is one.
// Other critical situations:- MCF is missed, and sender resends MPS
// We miss this because we're in FRM, but we mustn't miss the 3rd one!
// Ditto with DCS-TCF-missedCFR. Can't get 2nd, but we'll get 3rd
// #define PHASEC_TIMEOUT 2800L // 2.8s
// increase this to 3200. Limit is 3550, but we need 200ms or so to restart
// receiving FRH=3
//#define PHASEC_TIMEOUT 3300L // 3.3s
// increase this to 5 seconds
// it appears fax macines accept this delay before entering phase C
#define PHASEC_TIMEOUT 5000L
// How long to try for AT+FRM in TCF before timing out and trying
// +FRH. Mustn't miss TCF, but if we do, must catch next DCS
// increase this to 3200. Limit is 3550, but we need 200ms or so to restart
// receiving FRH=3
#define TCF_TIMEOUT 3300L // 3.3s
// don't need this one. Besides don't want to send it at startup when
// we're already transmitting HDLC. This can cause problems, if we already
// have a delay (example after TCF, sending CFR. Delay is now 115, it will
// become 180 or so).
// #define LOWSPEED_PAUSE 60 // how long to pause before HDLC
// reduce this too
#define RECV_LOWSPEED_PAUSE 55 // used by RecvSil() before HDLC
// ModemRecvSilence() always waits a bit longer than the amount requested
// so to get it right we ask for the minimum required, i.e. 55ms
// However ModemSendSilence() is pretty accurate, so ask for teh exact
// nominal amount, i.e. 75ms
// How long of silence to look for before sending V.21. (IFAX/MDDI only)
// Use LOWSPEED_PAUSE defined above.
// How long of silence to look for before sending PhaseC. (IFAX/MDDI only)
// use 40ms or more (want to be pretty sure we got silenec)
// ---> we use PHASEC_PAUSE which is OK
// How long to look for silence before sending high-speed.
// If this fails we go ahead and send anyway, so we don't want
// it too long. But we want to try pretty hard to get silence,
// because otherwise the other side will miss my training.
// 3secs is about how long a NSF-DIS takes. If we hit one
// we want to wait until it's done, not timeout??
#define LONG_RECVSILENCE_TIMEOUT 3000 // how long to wait for silence before send HDLC or PIX
// when sending DIS, DCS or DTC we may collide with DCS, DIS or DIS coming
// from the other side. This can be really long (preamble+2NSFs+CSI+DIS > 5secs)
// so wait for upto 6 secs (preamble + 150+ bytes)
#define REALLY_LONG_RECVSILENCE_TIMEOUT 6000 // how long to wait for silence before send DIS/DCS/DTC
#define ECHOPROTECT(ifr, mode) { pTG->EchoProtect.ifrLastSent=ifr; pTG->EchoProtect.modePrevRecv=mode; pTG->EchoProtect.fGotWrongMode=0; }
extern USHORT TCFLen[];
#define GetResponse(pTG, ifr) GetCmdResp(pTG, FALSE, ifr)
#define GetCommand(pTG, ifr) GetCmdResp(pTG, TRUE, ifr)
/****************** begin prototypes from hdlc.c *****************/USHORT ModemRecvBuf(PThrdGlbl pTG, LPBUFFER far* lplpbf, ULONG ulTimeout);/***************** end of prototypes from hdlc.c *****************/
/****************** begin prototypes from t30.c *****************/IFR GetCmdResp(PThrdGlbl pTG, BOOL fCommand, USHORT ifrResp);/***************** end of prototypes from t30.c *****************/
/****************** begin prototypes from t30main.c *****************/USHORT T30MainBody(PThrdGlbl pTG, BOOL fCaller);/***************** end of prototypes from t30main.c *****************/
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