/* 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. */ #include "esp_err.h" // for esp_err_t #include "mbc_master.h" // for master interface define #include "esp_modbus_master.h" // for public slave defines #include "mbc_serial_master.h" // for public interface defines /** * Initialization of Modbus master serial */ esp_err_t mbc_master_init(mb_port_type_t port_type, void** handler) { void* port_handler = NULL; esp_err_t error = ESP_ERR_NOT_SUPPORTED; switch(port_type) { case MB_PORT_SERIAL_MASTER: error = mbc_serial_master_create(&port_handler); break; default: return ESP_ERR_NOT_SUPPORTED; } if ((port_handler != NULL) && (error == ESP_OK)) { mbc_master_init_iface(port_handler); *handler = port_handler; } return error; }