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https://github.com/emqx/neuron.git
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hxy7yx
58 lines
2.4 KiB
C
58 lines
2.4 KiB
C
/**
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* NEURON IIoT System for Industry 4.0
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* Copyright (C) 2020-2022 EMQ Technologies Co., Ltd All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser 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 program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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#ifndef _NEU_M_PLUGIN_MODBUS_STACK_H_
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#define _NEU_M_PLUGIN_MODBUS_STACK_H_
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#include <stdint.h>
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#include <neuron.h>
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#include "modbus.h"
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typedef struct modbus_stack modbus_stack_t;
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typedef int (*modbus_stack_send)(void *ctx, uint16_t n_byte, uint8_t *bytes);
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typedef int (*modbus_stack_value)(void *ctx, uint8_t slave_id, uint16_t n_byte,
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uint8_t *bytes, int error);
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typedef int (*modbus_stack_write_resp)(void *ctx, void *req, int error);
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typedef enum modbus_protocol {
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MODBUS_PROTOCOL_TCP = 1,
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MODBUS_PROTOCOL_RTU = 2,
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} modbus_protocol_e;
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modbus_stack_t *modbus_stack_create(void *ctx, modbus_protocol_e protocol,
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modbus_stack_send send_fn,
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modbus_stack_value value_fn,
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modbus_stack_write_resp write_resp);
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void modbus_stack_destroy(modbus_stack_t *stack);
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int modbus_stack_recv(modbus_stack_t *stack, uint8_t slave_id,
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neu_protocol_unpack_buf_t *buf);
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int modbus_stack_read(modbus_stack_t *stack, uint8_t slave_id,
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enum modbus_area area, uint16_t start_address,
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uint16_t n_reg, uint16_t *response_size);
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int modbus_stack_write(modbus_stack_t *stack, void *req, uint8_t slave_id,
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enum modbus_area area, uint16_t start_address,
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uint16_t n_reg, uint8_t *bytes, uint8_t n_byte,
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uint16_t *response_size);
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bool modbus_stack_is_rtu(modbus_stack_t *stack);
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#endif |