text: /*
   * This file is part of the MicroPython project, http://micropython.org/
   *
   * The MIT License (MIT)
   *
   * Copyright (c) 2014 Damien P. George
   *
   * Permission is hereby granted, 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.
   */
  
  #include <stdio.h>
  #include <stdint.h>
  #include <string.h>
  
  #include "py/objlist.h"
  #include "py/runtime.h"
  #include "py/mphal.h"
  #include "lib/netutils/netutils.h"
  #include "modnetwork.h"
  
  #if MICROPY_PY_NETWORK
  
  #if MICROPY_PY_LWIP
  
  #include "lwip/netif.h"
  #include "lwip/timeouts.h"
  #include "lwip/dns.h"
  #include "lwip/dhcp.h"
  
  u32_t sys_now(void) {
      return mp_hal_ticks_ms();
  }
  
  #endif
  
  // module network - network configuration
  // This module provides network drivers and routing configuration.
  
  void mod_network_init(void) {
  
  	MP_STATE_PORT(modnetwork_nic) = NULL;
  }
  
  void mod_network_deinit(void) {
  }
   
  void mod_network_register_nic(mp_obj_t nic) {
  	MP_STATE_PORT(modnetwork_nic) = MP_OBJ_TO_PTR(nic);
  }
  
  mp_obj_t mod_network_find_nic(const uint8_t *ip) {
      //TODO: find a NIC that is suited to given IP address
  	if(MP_STATE_PORT(modnetwork_nic) != NULL)
      {
  		return MP_OBJ_FROM_PTR(MP_STATE_PORT(modnetwork_nic));
      }
      nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "no available NIC"));
  }
  
  STATIC mp_obj_t network_route(void) {
      return MP_OBJ_FROM_PTR(MP_STATE_PORT(modnetwork_nic));
  }
  STATIC MP_DEFINE_CONST_FUN_OBJ_0(network_route_obj, network_route);
  
  STATIC const mp_rom_map_elem_t mp_module_network_globals_table[] = {
      { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_network) },
      
      { MP_ROM_QSTR(MP_QSTR_ESP8285), MP_ROM_PTR(&mod_network_nic_type_esp8285) },
  
      { MP_ROM_QSTR(MP_QSTR_ESP32_SPI), MP_ROM_PTR(&mod_network_nic_type_esp32) },
  
      { MP_ROM_QSTR(MP_QSTR_route), MP_ROM_PTR(&network_route_obj) },
  };
  
  STATIC MP_DEFINE_CONST_DICT(mp_module_network_globals, mp_module_network_globals_table);
  
  const mp_obj_module_t network_module = {
      .base = { &mp_type_module },
      .globals = (mp_obj_dict_t*)&mp_module_network_globals,
  };
  
  #endif  // MICROPY_PY_NETWORK
  