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2025-06-15 19:47:15 -07:00

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C

/**
* NEURON IIoT System for Industry 4.0
* Copyright (C) 2020-2022 EMQ Technologies Co., Ltd All rights reserved.
*
* This program 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 3 of the License, or (at your option) any later version.
*
* This program 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 program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#ifndef _NEU_M_PLUGIN_MODBUS_REQ_H_
#define _NEU_M_PLUGIN_MODBUS_REQ_H_
#include <neuron.h>
#include "modbus_stack.h"
struct neu_plugin {
neu_plugin_common_t common;
neu_conn_t * conn;
modbus_stack_t *stack;
void * plugin_group_data;
uint16_t cmd_idx;
neu_event_io_t *tcp_server_io;
bool is_server;
bool is_serial;
int client_fd;
neu_events_t * events;
modbus_protocol_e protocol;
modbus_endianess endianess;
modbus_endianess_64 endianess_64;
modbus_address_base address_base;
uint16_t interval;
uint16_t retry_interval;
uint16_t max_retries;
uint16_t check_header;
bool degradation;
uint16_t degrade_cycle;
uint16_t degrade_time;
bool backup;
bool current_backup;
bool first_attempt_done;
neu_conn_param_t param;
neu_conn_param_t param_backup;
};
void modbus_conn_connected(void *data, int fd);
void modbus_conn_disconnected(void *data, int fd);
void modbus_tcp_server_listen(void *data, int fd);
void modbus_tcp_server_stop(void *data, int fd);
int modbus_tcp_server_io_callback(enum neu_event_io_type type, int fd,
void *usr_data);
int modbus_group_timer(neu_plugin_t *plugin, neu_plugin_group_t *group,
uint16_t max_byte);
int modbus_send_msg(void *ctx, uint16_t n_byte, uint8_t *bytes);
int modbus_value_handle(void *ctx, uint8_t slave_id, uint16_t n_byte,
uint8_t *bytes, int error, void *trace);
int modbus_write(neu_plugin_t *plugin, void *req, neu_datatag_t *tag,
neu_value_u value, bool response);
int modbus_write_tag(neu_plugin_t *plugin, void *req, neu_datatag_t *tag,
neu_value_u value);
int modbus_write_tags(neu_plugin_t *plugin, void *req, UT_array *tags);
int modbus_write_resp(void *ctx, void *req, int error);
int modbus_test_read_tag(neu_plugin_t *plugin, void *req, neu_datatag_t tag);
int modbus_value_handle_test(neu_plugin_t *plugin, void *req,
modbus_point_t *point, uint16_t n_byte,
uint8_t *bytes);
#endif