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CnC_Remastered_Collection/REDALERT/NULLMGR.CPP
PG-SteveT 03416d24e1 Initial Source Code commit 
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
2020-05-27 12:16:20 -07:00

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//
// Copyright 2020 Electronic Arts Inc.
//
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
// software: you can redistribute it and/or modify it under the terms of
// the GNU General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
// in the hope that it will be useful, but with permitted additional restrictions
// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
// distributed with this program. You should have received a copy of the
// GNU General Public License along with permitted additional restrictions
// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
/* $Header: /counterstrike/NULLMGR.CPP 2 3/07/97 6:40p Steve_tall $ */
/***************************************************************************
*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
***************************************************************************
* *
* Project Name : Command & Conquer *
* *
* File Name : NULLMGR.CPP *
* *
* Programmer : Bill Randolph *
* *
* Start Date : April 5, 1995 *
* *
* Last Update : May 1, 1995 [BRR] *
* *
*-------------------------------------------------------------------------*
* Functions: *
* NullModemClass::NullModemClass -- class constructor *
* NullModemClass::~NullModemClass -- class destructor *
* NullModemClass::Init -- initialization *
* NullModemClass::Send_Message -- sends a message *
* NullModemClass::Get_Message -- polls the Queue for a message *
* NullModemClass::Service -- main polling routine *
* NullModemClass::Num_Send -- Returns # of unACK'd send entries *
* NullModemClass::Num_Receive -- Returns # entries in the receive queue *
* NullModemClass::Response_Time -- Returns Queue's avg response time *
* NullModemClass::Reset_Response_Time -- Resets response time computatio*
* NullModemClass::Oldest_Send -- Returns ptr to oldest unACK'd send buf *
* NullModemClass::Detect_Modem -- Detects and initializes the modem *
* NullModemClass::Dial_Modem -- dials a number passed *
* NullModemClass::Answer_Modem -- waits for call and answers *
* NullModemClass::Hangup_Modem -- hangs up the modem *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#if (0)//PG
#include "function.h"
#ifdef WIN32
#include "wincomm.h"
#include "modemreg.h"
extern ModemRegistryEntryClass *ModemRegistry;
#endif //WIN32
#include "i86.h"
// Turn off "expression is not meaningful".
#pragma warning 628 9
// the following line was taken from Greenleaf's <ibmkeys.h> <asciidef.h>
// because of other define conflicts
#define ESC 27
#define NOKEY 0xffff
#define INIT_COMMAND_RETRIES 2
// this time is in milliseconds
#define DEFAULT_TIMEOUT 1500
//
// the following is for a fix around a greenleaf bug
// where they do not check for the value of abortkey
// to determine whether or not they call the abort modem function.
//
extern "C" {
extern void (*_AbortModemFunctionPtr)(int);
}
static void (*NullModemClass::OrigAbortModemFunc)(int);
static KeyNumType NullModemClass::Input;
static GadgetClass *NullModemClass::Commands; // button list
/*
** Ugly hack: this string stores the string received from the modem
*/
char ModemRXString[80];
/***************************************************************************
* NullModemClass::NullModemClass -- class constructor *
* *
* INPUT: *
* numsend # desired entries for the send queue *
* numreceive # desired entries for the receive queue *
* maxlen application's max packet length *
* magicnum application-specific magic # (so we don't *
* accidentally end up talking to another one of our own *
* products using the same protocol) *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 12/20/1994 BR : Created. *
*=========================================================================*/
NullModemClass::NullModemClass (int numsend, int numreceive, int maxlen,
unsigned short magicnum) : ConnManClass()
{
/*------------------------------------------------------------------------
Init Port to NULL; we haven't opened Greenleaf yet.
------------------------------------------------------------------------*/
#ifdef WIN32
PortHandle = NULL;
#else //WIN32
Port = NULL;
#endif //WIN32
Connection = NULL;
NumSend = numsend;
NumReceive = numreceive;
MaxLen = maxlen;
MagicNum = magicnum;
RXBuf = 0;
BuildBuf = 0;
EchoSize = 500;
EchoBuf = 0;
OldIRQPri = -1;
ModemVerboseOn = false; // default true
ModemEchoOn = false; // default true
ModemWaitCarrier = 50000; // default 50 * 1000ms = 50 secs
ModemCarrierDetect = 600; // default 6 * 100ms = .6 secs
ModemCarrierLoss = 1400; // default 14 * 100ms = 1.4 secs
ModemHangupDelay = 20000; // default 20 * 1000ms = 20 secs
ModemGuardTime = 1000; // default 50 * 20ms = 1 sec
ModemEscapeCode = '+'; // default ASCII 43
SendOverflows = 0;
ReceiveOverflows = 0;
CRCErrors = 0;
NumConnections = 0;
/*------------------------------------------------------------------------
Init timing parameters
------------------------------------------------------------------------*/
RetryDelta = 60; // 60 ticks between retries
MaxRetries = -1; // disregard # retries
Timeout = 1200; // report bad connection after 20 seconds
} /* end of NullModemClass */
/***************************************************************************
* NullModemClass::~NullModemClass -- class destructor *
* *
* INPUT: *
* none. *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 12/20/1994 BR : Created. *
*=========================================================================*/
NullModemClass::~NullModemClass ()
{
Delete_Connection();
} /* end of ~NullModemClass */
/***************************************************************************
* NullModemClass::Init -- initialization *
* *
* INPUT: *
* port address *
* irq 2-15 *
* dev_name name of communications device (win32 only) *
* baud 300, 1200, 9600, etc *
* parity 'O' (odd), 'E' (even), 'N' (none), 'S' (space), *
* 'M' (mark) *
* wordlength 5, 6, 7, or 8 *
* stopbits 1 or 2 *
* *
* OUTPUT: *
* 1 = OK, 0 = error *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 12/20/1994 BR : Created. *
* 10/9/1996 ST : Modified to take device name in win32 *
*=========================================================================*/
int NullModemClass::Init (int port, int irq, char *dev_name, int baud, char parity, int wordlen, int stopbits, int flowcontrol)
{
int com;
#ifdef WIN32
/*
** Get rid of the 'no reference to' warning
*/
irq = irq;
/*
** Make sure the port is closed before we start
*/
if (PortHandle) {
CloseHandle (PortHandle);
PortHandle = NULL;
}
if (!Connection) {
#else //WIN32
int irqnum;
int address;
int status;
/*
** Get rid of the 'no reference to' warning
*/
dev_name = dev_name;
if (Port) {
PortClose(Port);
Port = NULL;
}else {
#endif //WIN32
/*------------------------------------------------------------------------
Init our Connection
------------------------------------------------------------------------*/
Connection = new NullModemConnClass (NumSend, NumReceive, MaxLen,
MagicNum);
Connection->Set_Retry_Delta (RetryDelta);
Connection->Set_Max_Retries (MaxRetries);
Connection->Set_TimeOut (Timeout);
/*---------------------------------------------------------------------
Allocate our packet parsing buffer; make it the same # of packets as the
# of receive queue entries the application has requested. Use the
"Actual" maximum packet size, given from the connection; this allows for
both headers that get added to the packet.
---------------------------------------------------------------------*/
RXSize = Connection->Actual_Max_Packet() * NumReceive;
RXBuf = new char [RXSize];
BuildBuf = new char [MaxLen];
EchoBuf = new char [ EchoSize ];
}
RXCount = 0;
EchoCount = 0;
/*------------------------------------------------------------------------
This call allocates all necessary queue buffers
------------------------------------------------------------------------*/
switch (port) {
case 0x3f8:
com = COM1;
break;
case 0x2f8:
com = COM2;
break;
case 0x3e8:
com = COM3;
break;
case 0x2e8:
com = COM4;
break;
default:
com = COM5;
break;
}
#ifdef WIN32
int i;
/*
** Create a new modem class for our com port
*/
if (!SerialPort) {
SerialPort = new WinModemClass;
}
/*
** Shift up the baud rate to sensible values
*/
// if (baud == 14400) baud = 19200;
// if (baud == 28800) baud = 38400;
static char com_ids[9][5]={
"COM1",
"COM2",
"COM3",
"COM4",
"COM5",
"COM6",
"COM7",
"COM8",
"COM9"
};
char *device;
switch ( port ) {
case 0x3f8:
device = com_ids[0];
break;
case 0x2f8:
device = com_ids[1];
break;
case 0x3e8:
device = com_ids[2];
break;
case 0x2e8:
device = com_ids[3];
break;
case 1:
/*
** 1 is a special value. It means use the device name not the port address.
*/
device = dev_name;
/*
** If we can match a registry entry with the device name then use that, otherwise use
** the device name directly to open the port with.
*/
if (ModemRegistry){
delete ModemRegistry;
ModemRegistry = NULL;
}
for ( i=0 ; i<10 ; i++ ){
ModemRegistry = new ModemRegistryEntryClass (i);
if (ModemRegistry->Get_Modem_Name()){
if (!strcmp (dev_name, ModemRegistry->Get_Modem_Name() )){
device = ModemRegistry->Get_Modem_Device_Name();
break;
}
}
delete ModemRegistry;
ModemRegistry = NULL;
}
break;
default:
device = NULL;
}
/*
** Open the com port
*/
PortHandle = SerialPort->Serial_Port_Open (device, baud, parity, wordlen, stopbits, flowcontrol);
if (PortHandle == INVALID_HANDLE_VALUE) {
Shutdown();
return(false);
}
Connection->Init (PortHandle);
#else //WIN32
status = FastGetPortHardware( com, &irqnum, &address );
if (status == ASSUCCESS) {
if (port != address || irq != irqnum) {
status = FastSetPortHardware( com, irq, port );
if (status < ASSUCCESS) {
Mono_Printf( "Unable to set Com port status %d\n", status );
Mono_Printf( "Com port number %d with address %x, irq %d\n",
com + 1, port, irq );
} else {
Mono_Printf( "Changed Com port number %d to address %x, irq %d\n",
com + 1, port, irq );
}
} else {
Mono_Printf( "No changes to Com port number %d with address %x, irq %d\n",
com + 1, port, irq );
}
} else {
Mono_Printf( "Com port number %d\n", com + 1 );
}
if (status != ASSUCCESS) {
Delete_Connection();
return(false);
}
/*------------------------------------------------------------------------
Open the Greenleaf port
------------------------------------------------------------------------*/
Port = PortOpenGreenleafFast (com, baud, parity, wordlen, stopbits);
if (Port->status != ASSUCCESS) {
Shutdown();
return(false);
}
// UseRtsCts( Port, 1 ); // use RTS CTS hardware flow control
/*------------------------------------------------------------------------
Init the Connection
------------------------------------------------------------------------*/
Connection->Init(Port);
//because Watcom is so stupid
flowcontrol = flowcontrol;
#endif //WIN32
NumConnections = 1;
return(true);
}
/***********************************************************************************************
* NMC::Num_Connections -- returns NumConnections member *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: NumConnections *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 11:44AM ST : Documented / Win32 support *
*=============================================================================================*/
int NullModemClass::Num_Connections( void )
{
return(NumConnections);
}
/***********************************************************************************************
* NMC::Delete_Connection -- removes the connection *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: true *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 11:44AM ST : Documented / Win32 support *
*=============================================================================================*/
int NullModemClass::Delete_Connection( void )
{
if (Connection) {
delete Connection;
Connection = NULL;
}
if (RXBuf) {
delete [] RXBuf;
RXBuf = NULL;
}
if (BuildBuf) {
delete [] BuildBuf;
BuildBuf = NULL;
}
if (EchoBuf) {
delete [] EchoBuf;
EchoBuf = NULL;
}
NumConnections = 0;
return( true );
} /* end of Delete_Connection */
/***********************************************************************************************
* NMC::Init_Send_Queue -- Initialises the connections send queue *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: true *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 11:46AM ST : Documented / Win32 support *
*=============================================================================================*/
int NullModemClass::Init_Send_Queue( void )
{
/*------------------------------------------------------------------------
Init the send queue
------------------------------------------------------------------------*/
if ( Connection ) {
Connection->Queue->Init_Send_Queue();
}
return(true);
}
/***********************************************************************************************
* NMC::Detect_Port -- Checks that the specified com port exists *
* *
* *
* *
* INPUT: ptr to SerialSettingsType *
* *
* OUTPUT: true if port is valid *
* *
* WARNINGS: Win32 version always returns true as win95 shouldnt allow us to open the *
* port if it doesnt exist or is in use by the mouse *
* *
* HISTORY: *
* 8/2/96 11:47AM ST : Documented / Win32 support *
*=============================================================================================*/
DetectPortType NullModemClass::Detect_Port( SerialSettingsType *settings )
{
#ifdef WIN32
static char com_ids[9][5]={
"COM1",
"COM2",
"COM3",
"COM4",
"COM5",
"COM6",
"COM7",
"COM8",
"COM9"
};
int i;
/*
** Create a new modem class for our com port
*/
if (!SerialPort) {
SerialPort = new WinModemClass;
}else{
SerialPort->Serial_Port_Close();
}
/*
** Shift up the baud rate to sensible values
*/
int baud = settings->Baud;
// if (baud == 14400) baud = 19200;
// if (baud == 28800) baud = 38400;
/*
** Translate the port address into a usable device name
*/
char *device;
switch ( settings->Port ) {
case 0x3f8:
device = com_ids[0];
break;
case 0x2f8:
device = com_ids[1];
break;
case 0x3e8:
device = com_ids[2];
break;
case 0x2e8:
device = com_ids[3];
break;
case 1:
/*
** 1 is a special value. It means use the device name not the port address.
*/
device = settings->ModemName;
/*
** If we can match a registry entry with the device name then use that, otherwise use
** the device name directly to open the port with.
*/
if (ModemRegistry){
delete ModemRegistry;
ModemRegistry = NULL;
}
for ( i=0 ; i<10 ; i++){
ModemRegistry = new ModemRegistryEntryClass (i);
if (ModemRegistry->Get_Modem_Name()){
if (!strcmp (device, ModemRegistry->Get_Modem_Name() )){
/*
** Got a match. Break out leaving the registry info intact.
*/
device = ModemRegistry->Get_Modem_Device_Name();
break;
}
}
delete ModemRegistry;
ModemRegistry = NULL;
}
break;
default:
return (PORT_INVALID);
}
/*
** Open the com port
*/
HANDLE porthandle = SerialPort->Serial_Port_Open (device, baud, 0, 8, 1, settings->HardwareFlowControl);
if (porthandle == INVALID_HANDLE_VALUE){
return (PORT_INVALID);
}
SerialPort->Serial_Port_Close();
return (PORT_VALID);
#else //WIN32
union REGS regs ;
int com;
int irqnum;
int address;
int status;
// shutdown previous port
Shutdown();
if (settings->IRQ > 0xf) {
return( PORT_INVALID );
}
//
// check if the IRQ is the same as the mouse
// call mouse func to get mouse IRQ number
//
regs.x.eax = 0x0024;
int386( 0x33, &regs, &regs );
//
// check for error
//
if (regs.w.ax != 0xffff) {
//
// is the mouse IRQ the same as that they selected
//
if (regs.h.cl == 0) { // PS/2 IRQ 0xc
if (settings->IRQ == 0xc) {
return( PORT_IRQ_INUSE );
}
} else if (regs.h.cl == (unsigned char)(settings->IRQ)) {
return( PORT_IRQ_INUSE );
}
}
if (settings->IRQ < 2 // 0 timer, 1 keyboard
|| settings->IRQ == 6 // floppy disk
|| settings->IRQ == 8 // CMOS real-time clock
|| settings->IRQ == 0xd // math coprocessor error
|| settings->IRQ == 0xe) { // hard disk
return( PORT_IRQ_INUSE );
}
/*------------------------------------------------------------------------
This call allocates all necessary queue buffers
------------------------------------------------------------------------*/
switch ( settings->Port ) {
case 0x3f8:
com = COM1;
break;
case 0x2f8:
com = COM2;
break;
case 0x3e8:
com = COM3;
break;
case 0x2e8:
com = COM4;
break;
default:
com = COM5;
break;
}
status = FastGetPortHardware( com, &irqnum, &address );
if (status == ASSUCCESS) {
if (settings->Port != address || settings->IRQ != irqnum) {
status = FastSetPortHardware( com, settings->IRQ, settings->Port );
}
}
if (status != ASSUCCESS) {
return( PORT_INVALID );
}
/*------------------------------------------------------------------------
Open the Greenleaf port
------------------------------------------------------------------------*/
Port = PortOpenGreenleafFast (com, settings->Baud, 'N', 8, 1);
status = Port->status;
PortClose(Port);
Port = NULL;
if (status == ASIRQINUSE) {
return( PORT_IRQ_INUSE );
} else if (status != ASSUCCESS) {
return( PORT_INVALID );
}
return( PORT_VALID );
#endif //WIN32
}
/***********************************************************************************************
* NullModemClass::ShutDown -- Closes serial port and removes the connection *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 11:43AM ST : Documented / Win32 support *
*=============================================================================================*/
void NullModemClass::Shutdown ( void )
{
#ifdef WIN32
if (PortHandle && SerialPort) {
SerialPort->Serial_Port_Close();
delete SerialPort;
SerialPort = NULL;
PortHandle = NULL;
Delete_Connection();
}
#else //WIN32
if (Port) {
PortClose(Port);
Port = NULL;
Delete_Connection();
}
#endif //WIN32
} /* end of Shutdown */
/***************************************************************************
* NullModemClass::Set_Timing -- sets timing for all connections *
* *
* This will set the timing parameters. This allows an application to *
* measure the Response_Time while running, and adjust timing accordingly. *
* *
* INPUT: *
* retrydelta value to set for retry delta *
* maxretries value to set for max # retries *
* timeout value to set for connection timeout *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 08/07/1995 DRD : Created. *
*=========================================================================*/
void NullModemClass::Set_Timing (unsigned long retrydelta,
unsigned long maxretries, unsigned long timeout)
{
RetryDelta = retrydelta;
MaxRetries = maxretries;
Timeout = timeout;
Connection->Set_Retry_Delta (RetryDelta);
Connection->Set_Max_Retries (MaxRetries);
Connection->Set_TimeOut (Timeout);
} /* end of Set_Timing */
/***************************************************************************
* NullModemClass::Send_Message -- sends a message *
* *
* For clarity's sake, here's what happens to the buffer passed in: *
* - It gets passed to the Connection's Send_Packet() routine *
* - The CommHeaderType header gets tacked onto it *
* - The resulting buffer gets added to the Connection's Send Queue *
* - When Service() determines that it needs to send the data, it *
* copies the entire packet (CommHeaderType and all) into its local *
* SendBuf, adds the packet start ID, length, and CRC, then sends it out.*
* *
* The ack_req argument will almost always be '1' (the default). The only *
* reason to use 0 is if you don't know whether the other system is *
* ready or not, so you have to periodically send out a query packet, *
* and wait for a response. (Using the connection's built-in retry *
* system would just blast out useless data if the other system isn't *
* even there.) *
* *
* INPUT: *
* buf buffer to send *
* buflen length of buffer *
* ack_req 1 = ACK is required; 0 = not *
* *
* OUTPUT: *
* 1 = OK; 0 = error *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 12/20/1994 BR : Created. *
*=========================================================================*/
int NullModemClass::Send_Message (void *buf, int buflen, int ack_req)
{
int rc;
if (NumConnections == 0) {
return( false );
}
rc = Connection->Send_Packet(buf,buflen,ack_req);
if (!rc)
SendOverflows++;
return(rc);
} /* end of Send_Message */
/***************************************************************************
* NullModemClass::Get_Message -- polls the Queue for a message *
* *
* INPUT: *
* buf buffer to store message in *
* buflen ptr filled in with length of message *
* *
* OUTPUT: *
* 1 = message was received; 0 = wasn't *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 12/20/1994 BR : Created. *
*=========================================================================*/
int NullModemClass::Get_Message (void *buf, int *buflen)
{
if (NumConnections == 0) {
return( false );
}
return( Connection->Get_Packet( buf, buflen ) );
}
/***************************************************************************
* NullModemClass::Service -- main polling routine *
* *
* INPUT: *
* none. *
* *
* OUTPUT: *
* 1 = OK, 0 = connection has gone bad *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 12/20/1994 BR : Created. *
* 8/2/96 ST : Win32 support *
*=========================================================================*/
int NullModemClass::Service (void)
{
int pos; // current position in RXBuf
int i; // loop counter
unsigned short length;
SerialHeaderType *header; // decoded packet start, length
SerialCRCType *crc; // decoded packet CRC
char moredata = 0;
if (NumConnections == 0) {
return( false );
}
#ifdef WIN32
RXCount += SerialPort->Read_From_Serial_Port((unsigned char*)(RXBuf + RXCount), int(RXSize - RXCount) );
#else //WIN32
int status;
static unsigned long last_time = 0;
/*------------------------------------------------------------------------
First, copy all the bytes we can from the Greenleaf RX buffer to our
own buffer.
(For Win95, only call GetLineStatus() 60 times a second at most.
Otherwise, we don't receive any packets!)
------------------------------------------------------------------------*/
if ( (TickCount - last_time) > 0) {
if ( GetLineStatus( Port ) ) {
Mono_Set_Cursor(0,0);
ClearLineStatus( Port );
}
last_time = TickCount;
}
status = SpaceUsedInRXBuffer( Port );
if ( status < ASSUCCESS) {
// Smart_Printf( "SpaceUsedInRXBuffer status = %d, port status = %d \n", status, Port->status );
if ( Port->status < ASSUCCESS ) {
ClearError( Port );
}
} else if (status > 0) {
status = ReadBuffer( Port, RXBuf + RXCount, RXSize - RXCount );
#if (CONN_DEBUG)
printf( "ReadBuffer status = %d, port status = %d, count = %d \n", status, Port->status, Port->count );
#endif
// Smart_Printf( "ReadBuffer status = %d, port status = %d, count = %d \n", status, Port->status, Port->count );
if (status < ASSUCCESS && status != ASBUFREMPTY) {
// Smart_Printf( "ReadBuffer ERRRRRRORRRRRR! \n" );
} else {
moredata = 1;
}
if ( Port->status < ASSUCCESS ) {
ClearError( Port );
}
RXCount += Port->count;
}
#endif //WIN32
// minimum packet size
if ( RXCount < (PACKET_SERIAL_OVERHEAD_SIZE + 1) ) {
return( Connection->Service() );
}
/*------------------------------------------------------------------------
Now scan the buffer for the start of a packet.
------------------------------------------------------------------------*/
pos = -1;
for (i = 0; i <= RXCount - sizeof( short ); i++) {
if ( *((unsigned short *)(RXBuf + i)) == PACKET_SERIAL_START ) {
pos = i;
break;
}
}
/*------------------------------------------------------------------------
No start code was found; throw away all bytes except the last few, and
return.
------------------------------------------------------------------------*/
if (pos==-1) {
// Smart_Printf( "No magic number found \n" );
/*.....................................................................
move the remaining, un-checked bytes to the start of the buffer
.....................................................................*/
memmove (RXBuf, RXBuf + i, sizeof( short ) - 1);
RXCount = sizeof( short ) - 1;
return( Connection->Service() );
}
/*------------------------------------------------------------------------
Check to see if there are enough bytes for the header to be decoded
------------------------------------------------------------------------*/
if ( (RXCount - pos) < sizeof( SerialHeaderType ) ) {
memmove (RXBuf, RXBuf + pos, RXCount - pos);
RXCount -= pos;
return(Connection->Service());
}
/*------------------------------------------------------------------------
A start code was found; check the packet's length & CRC
------------------------------------------------------------------------*/
header = (SerialHeaderType *)(RXBuf + pos);
/*------------------------------------------------------------------------
If we lost a byte in the length, we may end up waiting a very long time
for the buffer to get to the right length; check the verify value to
make sure this didn't happen.
------------------------------------------------------------------------*/
if ( header->MagicNumber2 != PACKET_SERIAL_VERIFY ) {
// Smart_Printf( "Verify failed\n");
// Hex_Dump_Data( (RXBuf + pos), PACKET_SERIAL_OVERHEAD_SIZE );
pos += sizeof ( short ); // throw away the bogus start code
memmove (RXBuf, RXBuf + pos, RXCount - pos);
RXCount -= pos;
return(Connection->Service());
}
length = header->Length;
/*------------------------------------------------------------------------
Special case: if the length comes out too long for us to process:
- Assume the packet is bad
- Throw away the bogus packet-start code
- Return; we'll search for another packet-start code next time.
------------------------------------------------------------------------*/
if (length > MaxLen) {
#if (CONN_DEBUG)
printf( "length too lonnng\n" );
#endif
// Smart_Printf( "length too lonnng %d, max %d \n", length, MaxLen );
pos += sizeof ( short ); // throw away the bogus start code
memmove (RXBuf, RXBuf + pos, RXCount - pos);
RXCount -= pos;
return(Connection->Service());
}
/*------------------------------------------------------------------------
If the entire packet isn't stored in our buffer, copy the remaining bytes
to the front of the buffer & return.
------------------------------------------------------------------------*/
if ( (pos + length + PACKET_SERIAL_OVERHEAD_SIZE) > RXCount) {
if ( moredata ) {
// Smart_Printf( "waiting for more data %d, pos = %d \n", ((length + PACKET_SERIAL_OVERHEAD_SIZE) - (RXCount - pos)), pos );
}
if (pos) {
memmove (RXBuf, RXBuf + pos, RXCount - pos);
RXCount -= pos;
}
return(Connection->Service());
}
/*------------------------------------------------------------------------
Now grab the CRC value in the packet, & compare it to the CRC value
computed from the actual data. If they don't match, throw away the bogus
start-code, move the rest to the front of the buffer, & return.
We'll continue parsing this data when we're called next time.
------------------------------------------------------------------------*/
crc = (SerialCRCType *)(RXBuf + pos + sizeof( SerialHeaderType ) + length);
if (NullModemConnClass::Compute_CRC(RXBuf + pos +
sizeof( SerialHeaderType ), length) != crc->SerialCRC) {
CRCErrors++;
#if (CONN_DEBUG)
printf( "CRC check failed\n" );
#endif
// Smart_Printf( "CRC check failed for packet of length %d \n", length );
// if (length < 100) {
// Hex_Dump_Data( (RXBuf + pos), (PACKET_SERIAL_OVERHEAD_SIZE + length) );
// }
pos += sizeof ( short ); // throw away the bogus start code
memmove (RXBuf, RXBuf + pos, RXCount - pos);
RXCount -= pos;
return(Connection->Service());
}
#if(0)
// Mono_Printf( "received %d bytes \n", sendlen );
Debug_Modem_Dump = true;
Smart_Printf( "Received tick=%d, Protocol=%d \n", TickCount, Session.CommProtocol );
Hex_Dump_Data( (RXBuf + pos), (sizeof( SerialHeaderType) + length) );
Debug_Modem_Dump = false;
#endif
/*------------------------------------------------------------------------
Give the new packet to the Connection to process.
------------------------------------------------------------------------*/
if (!Connection->Receive_Packet(RXBuf + pos + sizeof( SerialHeaderType ), length)) {
ReceiveOverflows++;
// Smart_Printf( "Received overflows %d \n", ReceiveOverflows );
}
#if(0)
else {
// Mono_Printf( "added packet \n", sendlen );
Debug_Modem_Dump = true;
Smart_Printf( "Received Packet \n" );
Debug_Modem_Dump = false;
}
#endif
#if (0)
Hex_Dump_Data( (RXBuf + pos), (PACKET_SERIAL_OVERHEAD_SIZE + length) );
#endif
/*------------------------------------------------------------------------
Move all data past this packet to the front of the buffer.
------------------------------------------------------------------------*/
pos += (PACKET_SERIAL_OVERHEAD_SIZE + length);
memmove (RXBuf, RXBuf + pos, RXCount - pos);
RXCount -= pos;
/*------------------------------------------------------------------------
Now, service the connection's Queue's; this will handle ACK & Retries.
------------------------------------------------------------------------*/
return(Connection->Service());
} /* end of Service */
/***************************************************************************
* NullModemClass::Num_Send -- Returns # of unACK'd send entries *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 05/01/1995 BRR : Created. *
*=========================================================================*/
int NullModemClass::Num_Send(void)
{
if (Connection)
return( Connection->Queue->Num_Send() );
else
return (0);
} /* end of Num_Send */
/***************************************************************************
* NullModemClass::Num_Receive -- Returns # entries in the receive queue *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 05/01/1995 BRR : Created. *
*=========================================================================*/
int NullModemClass::Num_Receive(void)
{
if (Connection)
return( Connection->Queue->Num_Receive() );
else
return (0);
} /* end of Num_Receive */
/***************************************************************************
* NullModemClass::Response_Time -- Returns Queue's avg response time *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 05/01/1995 BRR : Created. *
*=========================================================================*/
unsigned long NullModemClass::Response_Time(void)
{
if (Connection)
return( Connection->Queue->Avg_Response_Time() );
else
return (0);
} /* end of Response_Time */
/***************************************************************************
* NullModemClass::Reset_Response_Time -- Resets response time computation *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 05/01/1995 BRR : Created. *
*=========================================================================*/
void NullModemClass::Reset_Response_Time(void)
{
if (Connection)
Connection->Queue->Reset_Response_Time();
} /* end of Reset_Response_Time */
/***************************************************************************
* Oldest_Send -- Returns ptr to oldest unACK'd send buffer *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 05/01/1995 BRR : Created. *
*=========================================================================*/
void * NullModemClass::Oldest_Send(void)
{
int i;
SendQueueType *send_entry; // ptr to send entry header
CommHeaderType *packet;
void *buf = NULL;
for (i = 0; i < Connection->Queue->Num_Send(); i++) {
send_entry = Connection->Queue->Get_Send(i);
if (send_entry) {
packet = (CommHeaderType *)send_entry->Buffer;
if (packet->Code == ConnectionClass::PACKET_DATA_ACK && send_entry->IsACK == 0) {
buf = send_entry->Buffer;
break;
}
}
}
return(buf);
} /* end of Oldest_Send */
/***************************************************************************
* NullModemClass::Configure_Debug -- sets up special debug values *
* *
* Mono_Debug_Print2() can look into a packet to pull out a particular *
* ID, and can print both that ID and a string corresponding to *
* that ID. This routine configures these values so it can find *
* and decode the ID. This ID is used in addition to the normal *
* CommHeaderType values. *
* *
* INPUT: *
* index (not used) *
* type_offset ID's byte offset into packet *
* type_size size of ID, in bytes; 0 if none *
* names ptr to array of names; use ID as an index into this *
* namestart numerical start of the 1st name value *
* namecount # in the names array; 0 if none. *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* Names shouldn't be longer than 12 characters. *
* *
* HISTORY: *
* 05/31/1995 BRR : Created. *
*=========================================================================*/
void NullModemClass::Configure_Debug(int, int type_offset, int type_size,
char **names, int namestart, int namecount)
{
if (Connection)
Connection->Queue->Configure_Debug (type_offset, type_size, names,
namestart, namecount);
}
#ifdef CHEAT_KEYS
/***************************************************************************
* Mono_Debug_Print -- Debug output routine *
* *
* INPUT: *
* index (not used) *
* refresh 1 = clear screen & completely refresh *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/02/1995 BRR : Created. *
*=========================================================================*/
void NullModemClass::Mono_Debug_Print(int,int refresh)
{
if (!Connection)
return;
Connection->Queue->Mono_Debug_Print (refresh);
if (refresh) {
Mono_Set_Cursor (31,1);
Mono_Printf ("Serial Port Queues");
Mono_Set_Cursor (9,2);
Mono_Printf ("Average Response Time:");
Mono_Set_Cursor (20,3);
Mono_Printf ("CRC Errors:");
Mono_Set_Cursor (43,2);
Mono_Printf ("Send Overflows:");
Mono_Set_Cursor (40,3);
Mono_Printf ("Receive Overflows:");
}
Mono_Set_Cursor (32,2);
Mono_Printf ("%d ", Connection->Queue->Avg_Response_Time());
Mono_Set_Cursor (32,3);
Mono_Printf ("%d ", CRCErrors);
Mono_Set_Cursor (59,2);
Mono_Printf ("%d ", SendOverflows);
Mono_Set_Cursor (59,3);
Mono_Printf ("%d ", ReceiveOverflows);
Mono_Set_Cursor (2,5);
Mono_Printf ("%d ", Num_Send());
Mono_Set_Cursor (41,5);
Mono_Printf ("%d ", Num_Receive());
} /* end of Mono_Debug_Print */
#endif
/***************************************************************************
* NullModemClass::Detect_Modem -- Detects and initializes the modem *
* *
* INPUT: *
* settings ptr to SerialSettings structure *
* *
* OUTPUT: *
* -1 init string invalid *
* 0 no modem found *
* 1 modem found *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 06/02/1995 DRD : Created. *
* 8/2/96 ST : Added Win32 support *
*=========================================================================*/
int NullModemClass::Detect_Modem( SerialSettingsType *settings, bool reconnect )
{
/*------------------------------------------------------------------------
Button Enumerations
------------------------------------------------------------------------*/
int status;
int error_count = 0;
int x,y,width,height; // dialog dimensions
char buffer[80*3];
/*
** Get resolution factor
*/
// int factor = SeenBuff.Get_Width()/320;
/*------------------------------------------------------------------------
Determine the dimensions of the text to be used for the dialog box.
These dimensions will control how the dialog box looks.
------------------------------------------------------------------------*/
strcpy( buffer, Text_String( TXT_INITIALIZING_MODEM ) );
Fancy_Text_Print(TXT_NONE, 0, 0, TBLACK, TBLACK, TPF_TEXT);
int lines = Format_Window_String(buffer, SeenBuff.Get_Height(), width, height);
width = max(width, 90 * RESFACTOR);
width += 40 * RESFACTOR;
height += 40 * RESFACTOR;
x = (SeenBuff.Get_Width() - width) / 2;
y = (SeenBuff.Get_Height() - height) / 2;
/*------------------------------------------------------------------------
Initialize
------------------------------------------------------------------------*/
Set_Logic_Page(SeenBuff);
/*------------------------------------------------------------------------
Draw the dialog
------------------------------------------------------------------------*/
Hide_Mouse();
if ( !reconnect ) {
Load_Title_Page(true);
}
Dialog_Box(x, y, width, height);
Draw_Caption(TXT_NONE, x, y, width);
if (lines == 1) {
Fancy_Text_Print(buffer, x + width/2, y + 25, GadgetClass::Get_Color_Scheme(), TBLACK, TPF_TEXT|TPF_CENTER);
} else {
Fancy_Text_Print(buffer, x + 20*RESFACTOR, y + 25, GadgetClass::Get_Color_Scheme(), TBLACK, TPF_TEXT);
}
Show_Mouse();
HMWaitForOK( 0, NULL );
/*
** OK, lets not mess about any more. Just turn on echo, verbose, and result codes
** before we even begin. At least this way when we get an error later on we have already
** removed all the steps we use to try and recover.
** The timeouts need to be quite small in case the modem is turned off.
*/
/*
** Turn on result codes.
*/
Send_Modem_Command ( "ATQ0", '\r', buffer, 81, DEFAULT_TIMEOUT / 2, 2);
/*
** Make result codes verbose.
*/
Send_Modem_Command ( "ATV1", '\r', buffer, 81, DEFAULT_TIMEOUT / 2, 2);
/*
** Turn on echo.
*/
Send_Modem_Command ( "ATE1", '\r', buffer, 81, DEFAULT_TIMEOUT / 2, 2);
ModemVerboseOn = true;
ModemEchoOn = true;
/*
** Try sending a plain old AT command to the modem. Now that we have theoretically
** turned on verbose result codes we should get an 'OK' back.
**
*/
status = Send_Modem_Command( "AT", '\r', buffer, 81, DEFAULT_TIMEOUT, 2 );
if (status < ASSUCCESS) {
#ifdef FIXIT_MULTI_SAVE
return(false);
#else
if (WWMessageBox().Process(TXT_ERROR_NO_RESP, TXT_IGNORE, TXT_CANCEL)) return( false );
error_count++;
#endif
}
/*
** Send the user supplied modem init string
*/
if (settings->InitStringIndex == -1) {
status = Send_Modem_Command( "", '\r', buffer, 81, 300, 1 );
} else {
/*
** Split up the init string into seperate strings if it contains one or more '|' characters.
** This character acts as a carriage return/pause.
*/
char *istr = new char [2 + strlen( Session.InitStrings [settings->InitStringIndex] )];
char *tokenptr;
strcpy (istr, Session.InitStrings [settings->InitStringIndex] );
/*
** Tokenise the string and send it in chunks
*/
tokenptr = strtok ( istr, "|" );
while ( tokenptr ) {
status = Send_Modem_Command( tokenptr, '\r', buffer, 81, 3000, 1 );
/*
** Handle error case.
*/
if (status < ASSUCCESS) {
if (WWMessageBox().Process(TXT_ERROR_NO_INIT, TXT_IGNORE, TXT_CANCEL)) {
delete istr;
return( false );
}
#ifdef WIN32
error_count++;
#endif //WIN32
break;
}
tokenptr = strtok ( NULL, "|");
}
}
#ifdef WIN32
if (settings->Port == 1 && ModemRegistry) {
/*
** Send the init strings from the registry if available
*/
char send_string[256] = {"AT"};
/*
** Send the init string for hardware flow control
*/
if (settings->HardwareFlowControl){
if (ModemRegistry->Get_Modem_Hardware_Flow_Control()) {
strcpy (&send_string[2], ModemRegistry->Get_Modem_Hardware_Flow_Control());
status = Send_Modem_Command (send_string, '\r', buffer, 81, 300, 1);
if (status != MODEM_CMD_OK && status != MODEM_CMD_0) {
if (WWMessageBox().Process(TXT_NO_FLOW_CONTROL_RESPONSE, TXT_IGNORE, TXT_CANCEL)) return (false);
}
}
}else{
/*
** Send the init string for no flow control
*/
if (ModemRegistry->Get_Modem_No_Flow_Control()) {
strcpy (&send_string[2], ModemRegistry->Get_Modem_No_Flow_Control());
status = Send_Modem_Command (send_string, '\r', buffer, 81, DEFAULT_TIMEOUT, 1);
if (status != MODEM_CMD_OK && status != MODEM_CMD_0) {
if (WWMessageBox().Process(TXT_NO_FLOW_CONTROL_RESPONSE, TXT_IGNORE, TXT_CANCEL)) return (false);
}
}
}
/*
** Send the string for data compresseion
*/
if (settings->Compression){
if (ModemRegistry->Get_Modem_Compression_Enable()) {
strcpy (&send_string[2], ModemRegistry->Get_Modem_Compression_Enable());
Send_Modem_Command (send_string, '\r', buffer, 81, DEFAULT_TIMEOUT, 1);
if (status != MODEM_CMD_OK && status != MODEM_CMD_0) {
if (WWMessageBox().Process(TXT_NO_COMPRESSION_RESPONSE, TXT_IGNORE, TXT_CANCEL)) return (false);
}
}
}else{
if (ModemRegistry->Get_Modem_Compression_Disable()) {
strcpy (&send_string[2], ModemRegistry->Get_Modem_Compression_Disable());
Send_Modem_Command (send_string, '\r', buffer, 81, DEFAULT_TIMEOUT, 1);
if (status != MODEM_CMD_OK && status != MODEM_CMD_0) {
if (WWMessageBox().Process(TXT_NO_COMPRESSION_RESPONSE, TXT_IGNORE, TXT_CANCEL)) return (false);
}
}
}
/*
** Send the string for error correction
*/
if (settings->ErrorCorrection){
if (ModemRegistry->Get_Modem_Error_Correction_Enable()) {
strcpy (&send_string[2], ModemRegistry->Get_Modem_Error_Correction_Enable());
Send_Modem_Command (send_string, '\r', buffer, 81, DEFAULT_TIMEOUT, 1);
if (status != MODEM_CMD_OK && status != MODEM_CMD_0) {
if (WWMessageBox().Process(TXT_NO_ERROR_CORRECTION_RESPONSE, TXT_IGNORE, TXT_CANCEL)) return (false);
}
}
}else{
if (ModemRegistry->Get_Modem_Error_Correction_Disable()) {
strcpy (&send_string[2], ModemRegistry->Get_Modem_Error_Correction_Disable());
Send_Modem_Command (send_string, '\r', buffer, 81, DEFAULT_TIMEOUT, 1);
if (status != MODEM_CMD_OK && status != MODEM_CMD_0) {
if (WWMessageBox().Process(TXT_NO_ERROR_CORRECTION_RESPONSE, TXT_IGNORE, TXT_CANCEL)) return (false);
}
}
}
}
#endif //WIN32
/*
** We require that auto-answer be disabled so turn it off now.
*/
status = Send_Modem_Command( "ATS0=0", '\r', buffer, 81, DEFAULT_TIMEOUT, INIT_COMMAND_RETRIES );
if (status != MODEM_CMD_OK) {
if (WWMessageBox().Process(TXT_ERROR_NO_DISABLE, TXT_IGNORE, TXT_CANCEL)) return( false );
error_count++;
}
/*
** If we had an unreasonable number of ignored errors then return failure
*/
if (error_count >= 3) {
WWMessageBox().Process(TXT_ERROR_TOO_MANY, TXT_OK);
return (false);
}
return( true );
}
/***************************************************************************
* NullModemClass::Dial_Modem -- dials a number passed *
* *
* INPUT: *
* settings ptr to SerialSettings structure *
* *
* OUTPUT: *
* status DialStatus *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 06/02/1995 DRD : Created. *
* 8/2/96 ST : Win32 support *
*=========================================================================*/
DialStatusType NullModemClass::Dial_Modem( char *string, DialMethodType method, bool reconnect )
{
/*
** Get the resolution factor
*/
// int factor = SeenBuff.Get_Width()/320;
/*------------------------------------------------------------------------
Button Enumerations
------------------------------------------------------------------------*/
enum {
BUTTON_CANCEL = 100,
};
/*------------------------------------------------------------------------
Dialog variables
------------------------------------------------------------------------*/
bool process = true; // process while true
#ifndef WIN32
int status;
#endif //WIN32
int delay;
DialStatusType dialstatus;
int x,y,width,height; // dialog dimensions
char buffer[80*3];
/*------------------------------------------------------------------------
Determine the dimensions of the text to be used for the dialog box.
These dimensions will control how the dialog box looks.
------------------------------------------------------------------------*/
if (reconnect) {
strcpy( buffer, Text_String( TXT_MODEM_CONNERR_REDIALING ) );
} else {
strcpy( buffer, Text_String( TXT_DIALING ) );
}
Fancy_Text_Print(TXT_NONE,0,0,TBLACK,TBLACK,TPF_TEXT);
Format_Window_String(buffer, SeenBuff.Get_Height(), width, height);
int text_width = width;
width = max(width, 90 * RESFACTOR);
width += 40 * RESFACTOR;
height += 60 * RESFACTOR;
x = (SeenBuff.Get_Width() - width) / 2;
y = (SeenBuff.Get_Height() - height) / 2;
TextButtonClass cancelbtn(BUTTON_CANCEL, TXT_CANCEL, TPF_BUTTON,
x + ((width - (String_Pixel_Width( Text_String( TXT_CANCEL ) ) + 8 * RESFACTOR)) >> 1),
y + height - (FontHeight + FontYSpacing + 2 * RESFACTOR) - 10 * RESFACTOR);
/*------------------------------------------------------------------------
Initialize
------------------------------------------------------------------------*/
Set_Logic_Page(SeenBuff);
/*------------------------------------------------------------------------
Create the list
------------------------------------------------------------------------*/
Commands = &cancelbtn;
Commands->Flag_List_To_Redraw();
/*------------------------------------------------------------------------
Draw the dialog
------------------------------------------------------------------------*/
Hide_Mouse();
if ( !reconnect ) {
Load_Title_Page(true);
}
Dialog_Box(x, y, width, height);
Draw_Caption(TXT_NONE, x, y, width);
Fancy_Text_Print(buffer, SeenBuff.Get_Width()/2 - text_width/2, y + 25 *RESFACTOR, GadgetClass::Get_Color_Scheme(), TBLACK, TPF_TEXT);
Commands->Draw_All();
Show_Mouse();
/*
** Start waiting for connection response
*/
#ifdef WIN32
SerialPort->Set_Modem_Dial_Type((WinCommDialMethodType) method);
/*
** Clear out any old modem results that might be hanging around
*/
SerialPort->Get_Modem_Result(60, buffer, 81);
/*
** Dial that sucker
*/
SerialPort->Dial_Modem(string);
#else //WIN32
HMSetDialingMethod( Port, (int)method );
status = HMDial( Port, string );
#endif //WIN32
/*
** Sets up the ability to abort modem commands when any input is in the
** Keyboard buffer. This also calls the game CallBack().
*/
Setup_Abort_Modem();
/*------------------------------------------------------------------------
Main Processing Loop
------------------------------------------------------------------------*/
process = true;
delay = ModemWaitCarrier;
while (process) {
#ifdef WIN32
/*
** If we have just received input focus again after running in the background then
** we need to redraw.
*/
if (AllSurfaces.SurfacesRestored) {
AllSurfaces.SurfacesRestored=FALSE;
Commands->Draw_All();
}
delay = SerialPort->Get_Modem_Result(delay, buffer, 81);
#else //WIN32
delay = HMInputLine( Port, delay, buffer, 81 );
#endif //WIN32
/*.....................................................................
Process input
.....................................................................*/
switch (Input) {
case (KN_ESC):
case (BUTTON_CANCEL | KN_BUTTON):
dialstatus = DIAL_CANCELED;
process = false;
break;
default:
break;
}
if (process) {
if ( strncmp( buffer, "CON", 3 ) == 0 ) {
memset (ModemRXString, 0, 80);
strncpy (ModemRXString, buffer, 79);
dialstatus = DIAL_CONNECTED;
process = false;
} else if ( strncmp( buffer, "BUSY", 4 ) == 0 ) {
dialstatus = DIAL_BUSY;
process = false;
} else if ( strncmp( buffer, "NO C", 4 ) == 0 ) {
dialstatus = DIAL_NO_CARRIER;
process = false;
} else if ( strncmp( buffer, "NO D", 4 ) == 0 ) {
dialstatus = DIAL_NO_DIAL_TONE;
process = false;
} else if ( strncmp( buffer, "ERRO", 4 ) == 0 ) {
dialstatus = DIAL_ERROR;
process = false;
}
}
if (delay <= 0) {
process = false;
}
}
Remove_Abort_Modem();
return( dialstatus );
} /* end of Dial_Modem */
/***************************************************************************
* NullModemClass::Answer_Modem -- waits for call and answers *
* *
* INPUT: *
* reconnect whether this is to reconnect *
* *
* OUTPUT: *
* status DialStatus *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 06/02/1995 DRD : Created. *
* 8/2/96 ST : Added Win32 support *
*=========================================================================*/
DialStatusType NullModemClass::Answer_Modem( bool reconnect )
{
/*
** Get the resolution factor
*/
// int factor = (SeenBuff.Get_Width() == 320) ? 1 : 2;
/*------------------------------------------------------------------------
Button Enumerations
------------------------------------------------------------------------*/
enum {
BUTTON_CANCEL = 100,
};
/*------------------------------------------------------------------------
Redraw values: in order from "top" to "bottom" layer of the dialog
------------------------------------------------------------------------*/
typedef enum {
REDRAW_NONE = 0,
REDRAW_BUTTONS,
REDRAW_BACKGROUND,
REDRAW_ALL = REDRAW_BACKGROUND
} RedrawType;
/*------------------------------------------------------------------------
Dialog variables
------------------------------------------------------------------------*/
RedrawType display = REDRAW_ALL; // redraw level
bool process = true; // process while true
#ifndef WIN32
int status;
#endif //WIN32
int delay;
DialStatusType dialstatus;
bool ring = false;
int x,y,width,height; // dialog dimensions
int text_width;
char text_buffer[80*3];
char comm_buffer[80*3];
/*------------------------------------------------------------------------
Determine the dimensions of the text to be used for the dialog box.
These dimensions will control how the dialog box looks.
------------------------------------------------------------------------*/
if (reconnect) {
strcpy( text_buffer, Text_String( TXT_MODEM_CONNERR_WAITING ) );
} else {
strcpy( text_buffer, Text_String( TXT_WAITING_FOR_CALL ) );
}
Fancy_Text_Print(TXT_NONE, 0, 0, TBLACK, TBLACK, TPF_TEXT);
Format_Window_String(text_buffer, SeenBuff.Get_Height(), width, height);
text_width = width;
width = max(width, 90 * RESFACTOR);
width += 40 * RESFACTOR;
height += 60 * RESFACTOR;
x = (SeenBuff.Get_Width() - width) / 2;
y = (SeenBuff.Get_Height() - height) / 2;
TextButtonClass cancelbtn(BUTTON_CANCEL, TXT_CANCEL, TPF_BUTTON,
x + ((width - (String_Pixel_Width( Text_String( TXT_CANCEL ) ) + 8 * RESFACTOR)) >> 1),
y + height - (FontHeight + FontYSpacing + 2 * RESFACTOR) - 10 * RESFACTOR);
/*------------------------------------------------------------------------
Initialize
------------------------------------------------------------------------*/
Set_Logic_Page(SeenBuff);
Load_Title_Page(true);
Input = KN_NONE;
/*------------------------------------------------------------------------
Create the list
------------------------------------------------------------------------*/
Commands = &cancelbtn;
Commands->Flag_List_To_Redraw();
/*
** Sets up the ability to abort modem commands when any input is in the
** Keyboard buffer. This also calls the game CallBack() and Input().
*/
Setup_Abort_Modem();
/*------------------------------------------------------------------------
Main Processing Loop
------------------------------------------------------------------------*/
process = true;
delay = 60000;
while (process) {
#ifdef WIN32
/*
** If we have just received input focus again after running in the background then
** we need to redraw.
*/
if (AllSurfaces.SurfacesRestored) {
AllSurfaces.SurfacesRestored=FALSE;
display=REDRAW_ALL;
}
#endif //WIN32
/*.....................................................................
Refresh display if needed
.....................................................................*/
if (display) {
Hide_Mouse();
if (display >= REDRAW_BACKGROUND) {
/*...............................................................
Refresh the backdrop
...............................................................*/
if ( !reconnect ) {
Load_Title_Page(true);
}
/*...............................................................
Draw the background
...............................................................*/
Dialog_Box(x, y, width, height);
/*...............................................................
Draw the labels
...............................................................*/
Draw_Caption(TXT_NONE, x, y, width);
Fancy_Text_Print(text_buffer, SeenBuff.Get_Width()/2 - text_width/2, y + 25 * RESFACTOR,
GadgetClass::Get_Color_Scheme(), TBLACK, TPF_TEXT);
Commands->Draw_All();
}
Show_Mouse();
display = REDRAW_NONE;
}
#ifdef WIN32
delay = SerialPort->Get_Modem_Result(delay, comm_buffer, 81);
#else //WIN32
delay = HMInputLine( Port, delay, comm_buffer, 81 );
#endif //WIN32
/*.....................................................................
Process input
.....................................................................*/
if (!Input) Input = Commands->Input();
switch (Input) {
case (KN_ESC):
case (BUTTON_CANCEL | KN_BUTTON):
dialstatus = DIAL_CANCELED;
process = false;
break;
default:
break;
}
if (process) {
if ( strncmp( comm_buffer, "RING", 4 ) == 0 ) {
strcpy( text_buffer, Text_String( TXT_ANSWERING ) );
Fancy_Text_Print(TXT_NONE,0,0,TBLACK,TBLACK,TPF_TEXT);
Format_Window_String(text_buffer, SeenBuff.Get_Height(), width, height);
text_width = width;
width = max(width, 90 * RESFACTOR);
width += 40 * RESFACTOR;
height += 60 * RESFACTOR;
x = (SeenBuff.Get_Width() - width) / 2;
y = (SeenBuff.Get_Height() - height) / 2;
#ifdef WIN32
SerialPort->Write_To_Serial_Port ((unsigned char*)"ATA\r", strlen("ATA\r"));
#else //WIN32
PortKillTime( Port, 100 );
HMWaitForOK( 0, NULL );
status = HMAnswer( Port );
#endif //WIN32
ring = true;
delay = ModemWaitCarrier;
display = REDRAW_ALL;
} else if ( strncmp( comm_buffer, "CON", 3 ) == 0 ) {
memset (ModemRXString, 0, 80);
strncpy (ModemRXString, comm_buffer, 79);
dialstatus = DIAL_CONNECTED;
process = false;
} else if ( strncmp( comm_buffer, "BUSY", 4 ) == 0 ) {
dialstatus = DIAL_BUSY;
process = false;
} else if ( strncmp( comm_buffer, "NO C", 4 ) == 0 ) {
dialstatus = DIAL_NO_CARRIER;
process = false;
} else if ( strncmp( comm_buffer, "ERRO", 4 ) == 0 ) {
dialstatus = DIAL_ERROR;
WWMessageBox().Process(TXT_ERROR_ERROR, TXT_OK);
process = false;
}
}
#ifdef WIN32
if (delay <= 0) {
if (ring) {
if (SerialPort->Get_Modem_Status() & CD_SET) {
sprintf(ModemRXString, "%s", "Connected");
dialstatus = DIAL_CONNECTED;
} else {
dialstatus = DIAL_ERROR;
WWMessageBox().Process(TXT_ERROR_TIMEOUT, TXT_OK);
}
process = false;
} else {
delay = 60000;
}
}
#else //WIN32
if (delay <= 0) {
if (ring) {
process = false;
} else {
delay = 60000;
}
}
#endif //WIN32
}
Remove_Abort_Modem();
return( dialstatus );
} /* end of Answer_Modem */
/***************************************************************************
* NullModemClass::Hangup_Modem -- hangs up the modem *
* *
* INPUT: *
* none *
* *
* OUTPUT: *
* status successful or not *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 06/02/1995 DRD : Created. *
* 8/2/96 : Added Win32 support *
*=========================================================================*/
bool NullModemClass::Hangup_Modem( void )
{
int status;
int delay;
char buffer[81];
char escape[4];
/*
** Turn modem servicing off in the callback routine.
*/
Session.ModemService = false;
status = Send_Modem_Command( "AT", '\r', buffer, 81, DEFAULT_TIMEOUT, 1 );
if (status == MODEM_CMD_OK) {
Session.ModemService = true;
return( true );
}
/*
** Toggle DTR low then high
*/
#ifdef WIN32
SerialPort->Set_Serial_DTR(FALSE);
Delay(3200/60);
SerialPort->Set_Serial_DTR(TRUE);
#else //WIN32
SetDtr( Port, 0 );
PortKillTime( Port, 3200 );
SetDtr( Port, 1 );
#endif //WIN32
status = Send_Modem_Command( "AT", '\r', buffer, 81, DEFAULT_TIMEOUT, 1 );
if (status == MODEM_CMD_OK) {
Session.ModemService = true;
return( true );
}
delay = ModemGuardTime;
while ( delay > 0 ) {
#ifdef WIN32
delay = SerialPort->Get_Modem_Result(delay, buffer, 81);
#else //WIN32
delay = HMInputLine( Port, delay, buffer, 81 );
#endif //WIN32
}
/*
** Send modem break commmand
*/
escape[0] = ModemEscapeCode;
escape[1] = ModemEscapeCode;
escape[2] = ModemEscapeCode;
escape[3] = 0;
#ifdef WIN32
SerialPort->Write_To_Serial_Port((unsigned char*)escape, 3);
#else //WIN32
status = HMSendStringNoWait( Port, escape, -1 );
#endif //WIN32
delay = ModemGuardTime;
while ( delay > 0 ) {
#ifdef WIN32
delay = SerialPort->Get_Modem_Result(delay, buffer, 81);
#else //WIN32
delay = HMInputLine( Port, delay, buffer, 81 );
#endif //WIN32
if ( strncmp( buffer, "OK", 2 ) == 0 ) {
break;
}
}
/*
** Send the hangup command
*/
status = Send_Modem_Command( "ATH", '\r', buffer, 81, ModemHangupDelay, 1 );
if (status == MODEM_CMD_OK) {
} else {
Session.ModemService = true;
return( false );
}
/*
** Send spurious ATZ command for no apparent reason
*/
status = Send_Modem_Command( "ATZ", '\r', buffer, 81, 5000, 1 );
if (status != MODEM_CMD_OK) {
Session.ModemService = true;
return( false );
}
Session.ModemService = true;
return( true );
} /* end of Hangup_Modem */
/***********************************************************************************************
* NMC::Setup_Modem_Echo -- Sets the echo callback function pointer *
* *
* *
* *
* INPUT: Ptr to callback function *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 12:48PM ST : Documented and added WIn32 support *
*=============================================================================================*/
void NullModemClass::Setup_Modem_Echo( void ( *func )( char c) )
{
#ifdef WIN32
SerialPort->Set_Echo_Function(func);
#else //WIN32
HMSetUpEchoRoutine( func );
#endif //WIN32
} /* end of Setup_Modem_Echo */
/***********************************************************************************************
* NMC::Remove_Modem_Echo -- Set the echo function callback pointer to null *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 12:50PM ST : Documented / Win32 support added *
*=============================================================================================*/
void NullModemClass::Remove_Modem_Echo( void )
{
// Smart_Printf( "Remove Echo modem code\n" );
HMSetUpEchoRoutine( NULL );
} /* end of Remove_Modem_Echo */
/***********************************************************************************************
* NMC::Print_EchoBuf -- Print out the contents of the echo buffer *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 12:51PM ST : Documented *
*=============================================================================================*/
void NullModemClass::Print_EchoBuf( void )
{
for (int i = 0; i < strlen(NullModem.EchoBuf); i++) {
if (NullModem.EchoBuf[i] == '\r') {
NullModem.EchoBuf[i] = 1;
} else {
if (NullModem.EchoBuf[i] == '\n') {
NullModem.EchoBuf[i] = 2;
}
}
}
// Smart_Printf( "Echo buffer length %d (%s)\n", NullModem.EchoCount, NullModem.EchoBuf );
}
/***********************************************************************************************
* NMC::Reset_EchoBuf -- Empties the echo buffer *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 12:51PM ST : Documented *
*=============================================================================================*/
void NullModemClass::Reset_EchoBuf( void )
{
*EchoBuf = 0;
EchoCount = 0;
}
/***********************************************************************************************
* NMC::Abort_Modem -- Checks for user input so that modem operations can be aborted *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: ASUSERABORT if abort key pressed. ASSUCESS otherwise. *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 12:52PM ST : Documented *
*=============================================================================================*/
int NullModemClass::Abort_Modem( PORT * )
{
/*
** Button Enumerations
*/
enum {
BUTTON_CANCEL = 100,
};
/*
** Invoke game callback
*/
Call_Back();
/*
** Get user input
*/
Input = Commands->Input();
switch ( Input ) {
case (KN_ESC):
case (BUTTON_CANCEL | KN_BUTTON):
return( ASUSERABORT );
}
return( ASSUCCESS );
} /* end of Abort_Modem */
/***********************************************************************************************
* NMC::Setup_Abort_Modem -- sets the modem abort function pointer *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 2:59PM ST : Documented / Win32 support added *
*=============================================================================================*/
void NullModemClass::Setup_Abort_Modem( void )
{
#ifdef WIN32
SerialPort->Set_Abort_Function((int(*)(void))Abort_Modem);
#else //WIN32
/*
** save off original abort modem function to later restore
*/
OrigAbortModemFunc = _AbortModemFunctionPtr;
HMSetUpAbortKey( ESC );
SetAbortModemFunctionPtr( Abort_Modem );
#endif //WIN32
} /* end of Setup_Abort_Modem */
/***********************************************************************************************
* NMC::Remove_Abort_Modem -- Removes the modem abort function pointer *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 3:01PM ST : Documented / Win32 support added *
*=============================================================================================*/
void NullModemClass::Remove_Abort_Modem( void )
{
#ifdef WIN32
SerialPort->Set_Abort_Function(NULL);
#else //WIN32
HMSetUpAbortKey( NOKEY );
/*
** Restore the original abort modem function
*/
_AbortModemFunctionPtr = OrigAbortModemFunc;
#endif //WIN32
} /* end of Remove_Abort_Modem */
/***********************************************************************************************
* NMC::Change_IRQ_Priority -- Increases the priority of the serial interrupt *
* *
* *
* *
* INPUT: Interrupt request number *
* *
* OUTPUT: ASSUCCESS if changed *
* *
* WARNINGS: The Win32 version of this function does nothing. *
* Priorities are controlled by windoze *
* *
* HISTORY: *
* 8/2/96 3:03PM ST : Documented / Win32 support added *
*=============================================================================================*/
int NullModemClass::Change_IRQ_Priority( int irq )
{
#ifdef WIN32
irq = irq;
return ( ASSUCCESS );
#else //WIN32
if (irq != OldIRQPri) {
OldIRQPri = irq;
return( Change8259Priority( irq ) );
} else {
return( ASSUCCESS );
}
#endif //WIN32
} /* end of Change_IRQ_Priority */
/***********************************************************************************************
* NMC::Get_Modem_Status -- returns status of modem control bits *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Modem status *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 3:06PM ST : Documented / Win32 support added *
*=============================================================================================*/
int NullModemClass::Get_Modem_Status( void )
{
int modemstatus;
int status;
char buffer[81];
#ifdef WIN32
modemstatus = SerialPort->Get_Modem_Status();
#else //WIN32
modemstatus = GetModemStatus( Port );
#endif //WIN32
status = Send_Modem_Command( "AT", '\r', buffer, 81, DEFAULT_TIMEOUT, 1 );
if (status == MODEM_CMD_OK) {
modemstatus &= (~CD_SET);
}
return( modemstatus );
} /* end of Get_Modem_Status */
/***********************************************************************************************
* NMC::Send_Modem_Command -- Sends an 'AT' command to the modem and gets the response *
* *
* *
* *
* INPUT: command to send to modem. e.g. 'ATZ' *
* terminator byte for command string *
* buffer to put modem response into *
* length of above buffer *
* delay to wait for response *
* number of times to retry when modem doesnt respond *
* *
* OUTPUT: input delay less the time it took the modem to respond *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 3:09PM ST : Documented / Win32 support added *
*=============================================================================================*/
int NullModemClass::Send_Modem_Command( char *command, char terminator, char *buffer, int buflen, int delay, int retries )
{
#ifdef WIN32
return (SerialPort->Send_Command_To_Modem(command, terminator, buffer, buflen, delay, retries));
#else //WIN32
int status, tmpdelay, retry;
char tempbuf[81];
*buffer = 0;
for ( retry = 0; retry < retries; retry++ ) {
PortKillTime( Port, 100 );
status = HMSendStringNoWait( Port, command, terminator );
if (status < ASSUCCESS) {
return( status );
}
tmpdelay = delay;
while ( tmpdelay > 0 ) {
tmpdelay = HMInputLine( Port, tmpdelay, tempbuf, 81 );
if ( strcmp( tempbuf, "OK" ) == 0 ) {
return( MODEM_CMD_OK );
} else if ( strcmp( tempbuf, "0" ) == 0 ) {
return( MODEM_CMD_0 );
} else if ( strcmp( tempbuf, "ERROR" ) == 0 ) {
return( MODEM_CMD_ERROR );
} else if ( tempbuf[0] != 0 ) {
strncpy( buffer, tempbuf, buflen );
}
}
PortKillTime( Port, 100 );
/*
** Send and extra return to help clear out any problems with the modem (if any).
*/
HMWaitForOK( 300, NULL );
status = HMSendString( Port, "" );
HMWaitForOK( 0, NULL );
}
return( tmpdelay );
#endif //WIN32
}
/***********************************************************************************************
* NMC::Verify_And_Convert_To_Int -- converts a text string of numbers to an int *
* *
* *
* *
* INPUT: ptr to buffer *
* *
* OUTPUT: value of text number in buffer *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 8/2/96 3:13PM ST : Documented *
*=============================================================================================*/
int NullModemClass::Verify_And_Convert_To_Int( char *buffer )
{
int value = 0;
int len = strlen(buffer);
for (int i = 0; i < len; i++) {
if ( !isdigit( *(buffer + i) ) ) {
value = -1;
break;
}
}
if (value == 0) {
value = atoi( buffer );
}
return( value );
} /* end of Verify_And_Convert_To_Int */
/*************************** end of nullmgr.cpp ****************************/
#endif
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