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