File content as of revision 38:eb1e46561a19:

/* ESP8266Interface Example
 * Copyright (c) 2015 ARM Limited
 *
 * 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 "ESP8266Interface.h"
#include "ESP8266SocketInterface.h"

ESP8266Interface::ESP8266Interface(PinName tx, PinName rx, bool debug)
    : _esp(tx, rx, debug)
{
    memset(_ids, 0, sizeof(_ids));
}

int32_t ESP8266Interface::connect(
    const char *ap, 
    const char *pass_phrase, 
    wifi_security_t)
{
    _esp.setTimeout(getTimeout());

    if (!_esp.startup(3)) return -1;
    if (!_esp.dhcp(true, 1)) return -1;
    if (!_esp.connect(ap, pass_phrase)) return -1;

    _ip_address = _esp.getIPAddress();
    _mac_address = _esp.getMACAddress();
    if (!_ip_address || !_mac_address) return -1;

    return 0;
}

int32_t ESP8266Interface::disconnect()
{
    if (!_esp.disconnect()) return -1;

    return 0;
}

const char *ESP8266Interface::getIPAddress()
{
    return _ip_address;
}

const char *ESP8266Interface::getMACAddress()
{
    return _mac_address;
}

void ESP8266Interface::setTimeout(uint32_t timeout)
{
    NetworkInterface::setTimeout(timeout);
    _esp.setTimeout(timeout);
}

SocketInterface *ESP8266Interface::createSocket(socket_protocol_t proto)
{
    // Look for an unused socket
    int id = -1;

    for (int i = 0; i < ESP8266_SOCKET_COUNT; i++) {
        if (!_ids[i]) {
            id = i;
            _ids[i] = true;
            break;
        }
    }

    if (id == -1) {
        return 0;
    }

    return new ESP8266SocketInterface(&_esp, proto, id);
}

void ESP8266Interface::destroySocket(SocketInterface *iface)
{
    ESP8266SocketInterface *socket = (ESP8266SocketInterface *)iface;
    _ids[socket->getID()] = false;
}