kopia lustrzana https://github.com/espressif/esp-idf
124 wiersze
4.0 KiB
C
124 wiersze
4.0 KiB
C
/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef _ESP_MB_SLAVE_INTERFACE_H
|
|
#define _ESP_MB_SLAVE_INTERFACE_H
|
|
|
|
// Public interface header for slave
|
|
#include <stdint.h> // for standard int types definition
|
|
#include <stddef.h> // for NULL and std defines
|
|
#include "soc/soc.h" // for BITN definitions
|
|
#include "freertos/FreeRTOS.h" // for task creation and queues access
|
|
#include "freertos/event_groups.h" // for event groups
|
|
#include "esp_modbus_common.h" // for common types
|
|
|
|
/**
|
|
* @brief Parameter access event information type
|
|
*/
|
|
typedef struct {
|
|
uint32_t time_stamp; /*!< Timestamp of Modbus Event (uS)*/
|
|
uint16_t mb_offset; /*!< Modbus register offset */
|
|
mb_event_group_t type; /*!< Modbus event type */
|
|
uint8_t* address; /*!< Modbus data storage address */
|
|
size_t size; /*!< Modbus event register size (number of registers)*/
|
|
} mb_param_info_t;
|
|
|
|
/**
|
|
* @brief Parameter storage area descriptor
|
|
*/
|
|
typedef struct {
|
|
uint16_t start_offset; /*!< Modbus start address for area descriptor */
|
|
mb_param_type_t type; /*!< Type of storage area descriptor */
|
|
void* address; /*!< Instance address for storage area descriptor */
|
|
size_t size; /*!< Instance size for area descriptor (bytes) */
|
|
} mb_register_area_descriptor_t;
|
|
|
|
/**
|
|
* @brief Initialize Modbus controller and stack
|
|
*
|
|
* @param[out] handler handler(pointer) to master data structure
|
|
* @param[in] port_type type of stack
|
|
* @return
|
|
* - ESP_OK Success
|
|
* - ESP_ERR_NO_MEM Parameter error
|
|
*/
|
|
//esp_err_t mbc_slave_init(mb_port_type_t port_type, void** handler);
|
|
esp_err_t mbc_slave_init(mb_port_type_t port_type, void** handler);
|
|
|
|
/**
|
|
* @brief Destroy Modbus controller and stack
|
|
*
|
|
* @return
|
|
* - ESP_OK Success
|
|
* - ESP_ERR_INVALID_STATE Parameter error
|
|
*/
|
|
esp_err_t mbc_slave_destroy(void);
|
|
|
|
/**
|
|
* @brief Start Modbus communication stack
|
|
*
|
|
* @return
|
|
* - ESP_OK Success
|
|
* - ESP_ERR_INVALID_ARG Modbus stack start error
|
|
*/
|
|
esp_err_t mbc_slave_start(void);
|
|
|
|
/**
|
|
* @brief Set Modbus communication parameters for the controller
|
|
*
|
|
* @param comm_info Communication parameters structure.
|
|
*
|
|
* @return
|
|
* - ESP_OK Success
|
|
* - ESP_ERR_INVALID_ARG Incorrect parameter data
|
|
*/
|
|
esp_err_t mbc_slave_setup(void* comm_info);
|
|
|
|
/**
|
|
* @brief Wait for specific event on parameter change.
|
|
*
|
|
* @param group Group event bit mask to wait for change
|
|
*
|
|
* @return
|
|
* - mb_event_group_t event bits triggered
|
|
*/
|
|
mb_event_group_t mbc_slave_check_event(mb_event_group_t group);
|
|
|
|
/**
|
|
* @brief Get parameter information
|
|
*
|
|
* @param[out] reg_info parameter info structure
|
|
* @param timeout Timeout in milliseconds to read information from
|
|
* parameter queue
|
|
* @return
|
|
* - ESP_OK Success
|
|
* - ESP_ERR_TIMEOUT Can not get data from parameter queue
|
|
* or queue overflow
|
|
*/
|
|
esp_err_t mbc_slave_get_param_info(mb_param_info_t* reg_info, uint32_t timeout);
|
|
|
|
/**
|
|
* @brief Set Modbus area descriptor
|
|
*
|
|
* @param descr_data Modbus registers area descriptor structure
|
|
*
|
|
* @return
|
|
* - ESP_OK: The appropriate descriptor is set
|
|
* - ESP_ERR_INVALID_ARG: The argument is incorrect
|
|
*/
|
|
esp_err_t mbc_slave_set_descriptor(mb_register_area_descriptor_t descr_data);
|
|
|
|
#endif
|