esp-idf/examples/protocols/modbus_master/main/include/sense_modbus.h

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2.7 KiB
C

/*
* ESPRESSIF MIT License
*
* Copyright (c) 2018 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
*
* Permission is hereby granted for use on all ESPRESSIF SYSTEMS products, in which case,
* it is free of charge, to any person obtaining a copy of this software and associated
* documentation files (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef __SENSE_MB_H__
#define __SENSE_MB_H__
#include "mbcontroller.h"
#include "device_params.h"
#ifdef __cplusplus
extern "C" {
#endif /**< _cplusplus */
typedef struct
{
uint16_t cid; /*!< Characteristic cid */
const char* param_key; /*!< The key (name) of the parameter */
const char* param_units; /*!< The units of the parameter */
mb_parameter_opt_t param_opts; /*!< Parameter options */
mb_param_perms_t access; /*!< Access permissions based on mode */
void* instance_ptr; /*!< Data instance for the parameter */
mb_descr_type_t instance_type; /*!< Type of instance value */
size_t instance_size; /*!< Size of instance to save data */
uint8_t change_flag; /*!< Change value flag */
esp_err_t status; /*!< Status of the value */
uint64_t timestamp; /*!< Time stamp of last access to parameter */
} characteristic_descriptor_t;
esp_err_t sense_modbus_init(void);
esp_err_t sense_modbus_get_characteristics(characteristic_descriptor_t** cid_table, uint16_t* table_size);
esp_err_t sense_modbus_read_value(uint16_t cid, void* value);
esp_err_t sense_modbus_send_value(uint16_t cid, void* value);
esp_err_t sense_modbus_get_cid_data(uint16_t cid, characteristic_descriptor_t* cid_data);
#ifdef __cplusplus
}
#endif /**< _cplusplus */
#endif /**< __SENSE_MB_H__ */