1 /* Copyright 2018 Espressif Systems (Shanghai) PTE LTD 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "esp_err.h" // for esp_err_t 17 #include "sdkconfig.h" // for KConfig defines 18 #include "mbc_slave.h" // for slave interface define 19 #include "esp_modbus_slave.h" // for public slave defines 20 #include "mbc_serial_slave.h" // for public interface defines 21 22 /** 23 * Initialization of Modbus Serial slave controller 24 */ mbc_slave_init(mb_port_type_t port_type,void ** handler)25esp_err_t mbc_slave_init(mb_port_type_t port_type, void** handler) 26 { 27 void* port_handler = NULL; 28 esp_err_t error = ESP_ERR_NOT_SUPPORTED; 29 switch(port_type) 30 { 31 case MB_PORT_SERIAL_SLAVE: 32 // Call constructor function of actual port implementation 33 error = mbc_serial_slave_create(&port_handler); 34 break; 35 default: 36 return ESP_ERR_NOT_SUPPORTED; 37 } 38 if ((port_handler != NULL) && (error == ESP_OK)) { 39 mbc_slave_init_iface(port_handler); 40 *handler = port_handler; 41 } 42 return error; 43 } 44
