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/* Classic Ladder Project */
/* Copyright (C) 2001-2003 Marc Le Douarain */
/* mavati@club-internet.fr */
/* http://www.multimania.com/mavati/classicladder */
/* May 2003 */
/* Part written by Thomas Gleixner */
/* --------------------------------- */
/* Config file sizes to alloc parser */
/* --------------------------------- */
/* This library is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU Lesser General Public */
/* License as published by the Free Software Foundation; either */
/* version 2.1 of the License, or (at your option) any later version. */
/* This library is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
/* Lesser General Public License for more details. */
/* You should have received a copy of the GNU Lesser General Public */
/* License along with this library; if not, write to the Free Software */
/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include "classicladder.h"
#include "global.h"
#define TYPE_INT 1
#define TYPE_STRING 2
struct cfg_cfg {
char *name;
int type;
void *data;
};
/* Main configuration */
static struct cfg_cfg maincfg[] = {
{ "NBR_RUNGS", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_rungs },
{ "NBR_BITS", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_bits },
{ "NBR_WORDS", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_words },
#ifdef OLD_TIMERS_MONOS_SUPPORT
{ "NBR_TIMERS", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_timers },
{ "NBR_MONOSTABLES", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_monostables },
#endif
{ "NBR_PHYS_INPUTS", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_phys_inputs },
{ "NBR_PHYS_OUTPUTS", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_phys_outputs },
{ "NBR_ARITHM_EXPR", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_arithm_expr },
{ "NBR_SECTIONS", TYPE_INT, (void *) &GeneralParamsMirror.SizesInfos.nbr_sections },
#ifdef MODBUS_IO_MASTER
{ "MODBUS_MASTER_SERIAL_PORT", TYPE_STRING, (void *) ModbusSerialPortNameUsed },
{ "MODBUS_MASTER_SERIAL_SPEED", TYPE_INT, (void *) &ModbusSerialSpeed },
{ "MODBUS_MASTER_SERIAL_USE_RTS_TO_SEND", TYPE_INT, (void *) &ModbusSerialUseRtsToSend },
{ "MODBUS_MASTER_ELEMENT_OFFSET", TYPE_INT, (void *) &ModbusEleOffset },
{ "MODBUS_MASTER_TIME_INTER_FRAME", TYPE_INT, (void *) &ModbusTimeInterFrame },
{ "MODBUS_MASTER_TIME_OUT_RECEIPT", TYPE_INT, (void *) &ModbusTimeOutReceipt },
{ "MODBUS_MASTER_TIME_AFTER_TRANSMIT", TYPE_INT, (void *) &ModbusTimeAfterTransmit },
#endif
{ NULL, 0, NULL },
};
/**
* Read a config file and find matching entries
* Store the configuration value
*/
static int read_configfile (char *fname, struct cfg_cfg *cfg)
{
FILE *fp;
char line[255];
char *val;
int i;
printf("INFO CLASSICLADDER---Reading MODBUS config file -%s\n",fname);
fp = fopen (fname, "r");
if (fp == NULL) {
fprintf (stderr, "Cannot open %s file !!!\n", fname);
return -1;
}
while (!feof(fp)) {
if (fgets (line, 254, fp) == NULL)
break;
if (line[0] == '#')
continue;
val = strchr (line, '=');
if (!val)
continue;
*val++ = 0x0;
for (i = 0; cfg[i].name != NULL; i++) {
if (strcmp (cfg[i].name, line) != 0)
continue;
switch (cfg[i].type) {
case TYPE_INT:
*((int *)(cfg[i].data)) = atoi (val);
break;
case TYPE_STRING: {
char *p = strchr (val, '\n');
if (p)
*p = 0x0;
strcpy ((char *)cfg[i].data, val);
break;
}
default:
fprintf (stderr, "Unknown configtype for %s: %d\n", line, cfg[i].type);
break;
}
break;
}
}
fclose (fp);
return 0;
}
int read_config (char * fname)
{
return read_configfile (fname, maincfg);
}
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