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/*
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* Copyright (c) 2002,2016 Mario de Sousa (msousa@fe.up.pt)
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*
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* This file is part of the Modbus library for Beremiz and matiec.
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*
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* This Modbus library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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* General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this Modbus library. If not, see <http://www.gnu.org/licenses/>.
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*
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* This code is made available on the understanding that it will not be
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* used in safety-critical situations without a full and competent review.
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*/
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#ifndef MODBUS_LAYER2_H
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#define MODBUS_LAYER2_H
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#include <time.h> /* struct timespec data type */
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//#include <sys/socket.h>
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//#include <netinet/in.h>
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#include <netinet/ip.h> /* superset of previous */ // Required for INADDR_ANY
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/* Library Error codes */
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#define PORT_FAILURE -101
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#define INTERNAL_ERROR -102
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#define TIMEOUT -103
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#define INVALID_FRAME -104
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#define MODBUS_ERROR -105
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/* NOTE: Modbus error codes are defined in mb_util.h */
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typedef enum {optimize_speed, optimize_size} optimization_t;
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typedef enum {
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naf_ascii,
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naf_rtu,
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naf_tcp,
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} node_addr_family_t;
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typedef struct {
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const char *host;
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const char *service;
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int close_on_silence;
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} node_addr_tcp_t;
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typedef struct {
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const char *device;
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int baud; /* plain baud rate, eg 2400; zero for the default 9600 */
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int parity; /* 0 for none, 1 for odd, 2 for even */
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int data_bits;
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int stop_bits;
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int ignore_echo; /* 1 => ignore echo; 0 => do not ignore echo */
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} node_addr_rtu_t;
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typedef node_addr_rtu_t node_addr_ascii_t;
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typedef union {
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node_addr_ascii_t ascii;
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node_addr_rtu_t rtu;
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node_addr_tcp_t tcp;
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} node_addr_common_t;
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typedef struct {
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node_addr_family_t naf;
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node_addr_common_t addr;
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} node_addr_t;
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#endif /* MODBUS_LAYER2_H */
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