1ab9e81729
place timer handler functions into IRAM update timer port handlers fix communication issues fix offset issue in example add kconfig option to place handlers into IRAM
271 lines
11 KiB
C
271 lines
11 KiB
C
/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "esp_err.h" // for esp_err_t
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#include "mbc_master.h" // for master interface define
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#include "esp_modbus_master.h" // for public interface defines
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#include "mbc_serial_master.h" // for create function of the port
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#include "esp_modbus_callbacks.h" // for callback functions
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// This file implements public API for Modbus master controller.
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// These functions are wrappers for interface functions of the controller
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static mb_master_interface_t* master_interface_ptr = NULL;
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/**
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* Initialization of Modbus controller resources
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*/
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esp_err_t mbc_master_init(mb_port_type_t port_type, void** handler)
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{
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void* port_handler = NULL;
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esp_err_t error = ESP_ERR_NOT_SUPPORTED;
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switch(port_type)
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{
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case MB_PORT_SERIAL_MASTER:
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error = mbc_serial_master_create(port_type, &port_handler);
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break;
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case MB_PORT_TCP_MASTER:
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// TCP MAster is not yet supported
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//error = mbc_tcp_master_create(port_type, &port_handler);
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return ESP_ERR_NOT_SUPPORTED;
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default:
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return ESP_ERR_NOT_SUPPORTED;
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}
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MB_MASTER_CHECK((port_handler != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface initialization failure, error=(0x%x), port type=(0x%x).",
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error, (uint16_t)port_type);
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if ((port_handler != NULL) && (error == ESP_OK)) {
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master_interface_ptr = (mb_master_interface_t*) port_handler;
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*handler = port_handler;
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}
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return error;
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}
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/**
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* Modbus controller destroy function
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*/
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esp_err_t mbc_master_destroy(void)
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{
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esp_err_t error = ESP_OK;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->destroy != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->destroy();
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MB_MASTER_CHECK((error == ESP_OK),
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ESP_ERR_INVALID_STATE,
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"SERIAL master destroy failure error=(0x%x).",
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(uint16_t)error);
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return error;
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}
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esp_err_t mbc_master_get_cid_info(uint16_t cid, const mb_parameter_descriptor_t** param_info)
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{
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esp_err_t error = ESP_OK;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->get_cid_info != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->get_cid_info(cid, param_info);
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MB_MASTER_CHECK((error == ESP_OK),
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ESP_ERR_INVALID_STATE,
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"SERIAL master get cid info failure error=(0x%x).",
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(uint16_t)error);
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return error;
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}
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/**
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* Get parameter data for corresponding characteristic
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*/
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esp_err_t mbc_master_get_parameter(uint16_t cid, char* name, uint8_t* value, uint8_t* type)
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{
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esp_err_t error = ESP_OK;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->get_parameter != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->get_parameter(cid, name, value, type);
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MB_MASTER_CHECK((error == ESP_OK),
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error,
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"SERIAL master get parameter failure error=(0x%x) (%s).",
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error, esp_err_to_name(error));
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return error;
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}
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/**
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* Send custom Modbus request defined as mb_param_request_t structure
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*/
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esp_err_t mbc_master_send_request(mb_param_request_t* request, void* data_ptr)
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{
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esp_err_t error = ESP_OK;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->send_request != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->send_request(request, data_ptr);
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MB_MASTER_CHECK((error == ESP_OK),
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error,
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"SERIAL master send request failure error=(0x%x) (%s).",
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error, esp_err_to_name(error));
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return ESP_OK;
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}
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/**
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* Set Modbus parameter description table
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*/
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esp_err_t mbc_master_set_descriptor(const mb_parameter_descriptor_t* descriptor, const uint16_t num_elements)
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{
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esp_err_t error = ESP_OK;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->set_descriptor != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->set_descriptor(descriptor, num_elements);
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MB_MASTER_CHECK((error == ESP_OK),
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error,
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"SERIAL master set descriptor failure error=(0x%x) (%s).",
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error, esp_err_to_name(error));
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return ESP_OK;
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}
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/**
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* Set parameter value for characteristic selected by name and cid
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*/
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esp_err_t mbc_master_set_parameter(uint16_t cid, char* name, uint8_t* value, uint8_t* type)
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{
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esp_err_t error = ESP_OK;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->set_parameter != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->set_parameter(cid, name, value, type);
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MB_MASTER_CHECK((error == ESP_OK),
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error,
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"SERIAL master set parameter failure error=(0x%x) (%s).",
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error, esp_err_to_name(error));
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return ESP_OK;
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}
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/**
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* Setup Modbus controller parameters
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*/
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esp_err_t mbc_master_setup(void* comm_info)
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{
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esp_err_t error = ESP_OK;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->setup != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->setup(comm_info);
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MB_MASTER_CHECK((error == ESP_OK),
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error,
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"SERIAL master setup failure error=(0x%x) (%s).",
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error, esp_err_to_name(error));
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return ESP_OK;
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}
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/**
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* Modbus controller stack start function
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*/
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esp_err_t mbc_master_start(void)
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{
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esp_err_t error = ESP_OK;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->start != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->start();
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MB_MASTER_CHECK((error == ESP_OK),
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error,
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"SERIAL master start failure error=(0x%x) (%s).",
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error, esp_err_to_name(error));
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return ESP_OK;
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}
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eMBErrorCode eMBMasterRegDiscreteCB(UCHAR * pucRegBuffer, USHORT usAddress,
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USHORT usNDiscrete)
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{
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eMBErrorCode error = MB_ENOERR;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->master_reg_cb_discrete != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->master_reg_cb_discrete(pucRegBuffer, usAddress, usNDiscrete);
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return error;
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}
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eMBErrorCode eMBMasterRegCoilsCB(UCHAR* pucRegBuffer, USHORT usAddress,
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USHORT usNCoils, eMBRegisterMode eMode)
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{
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eMBErrorCode error = MB_ENOERR;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->master_reg_cb_coils != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->master_reg_cb_coils(pucRegBuffer, usAddress,
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usNCoils, eMode);
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return error;
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}
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eMBErrorCode eMBMasterRegHoldingCB(UCHAR * pucRegBuffer, USHORT usAddress,
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USHORT usNRegs, eMBRegisterMode eMode)
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{
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eMBErrorCode error = MB_ENOERR;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->master_reg_cb_holding != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->master_reg_cb_holding(pucRegBuffer, usAddress,
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usNRegs, eMode);
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return error;
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}
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eMBErrorCode eMBMasterRegInputCB(UCHAR * pucRegBuffer, USHORT usAddress,
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USHORT usNRegs)
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{
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eMBErrorCode error = MB_ENOERR;
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MB_MASTER_CHECK((master_interface_ptr != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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MB_MASTER_CHECK((master_interface_ptr->master_reg_cb_input != NULL),
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ESP_ERR_INVALID_STATE,
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"Master interface is not correctly initialized.");
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error = master_interface_ptr->master_reg_cb_input(pucRegBuffer, usAddress, usNRegs);
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return error;
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} |