Zoltan Hudak / UIPEthernet Featured

Mbed library for ENC28J60 Ethernet modules. Full support for TCP/IP and UDP Server, Client and HTTP server (webserver). DHCP and DNS is included.

Dependents:   mBuino_ENC28_MQTT Nucleo_Web_ENC28J60 Nucleo_Web_ENC28J60_ADC Serial_over_Ethernet ... more

Library for ENC28J60 Ethernet modules.

/media/uploads/hudakz/enc28j60_module01.jpg

Ported to mbed from Norbert Truchsess's UIPEthernet library for Arduino. Thank you Norbert!

  • Full support for persistent (streaming) TCP/IP and UDP connections Client and Server each, ARP, ICMP, DHCP and DNS.
  • Works with both Mbed OS 2 and Mbed OS 5.

Usage:

  • Import the library into your project.
  • Add #include "UipEthernet.h" to main.cpp
  • Create one instance of the UipEthernet class initialized with the MAC address you'd like to use and SPI pins of the connected Mbed board.

Example programs:

Import programWebSwitch_ENC28J60

HTTP Server serving a simple webpage which enables to remotely turn a digital output on/off. Compile, download, run and type 'IP_address/secret/' (don't forget the last '/') into your web browser and hit ENTER.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programHTTPServer_Echo_ENC28J60

A simple HTTP server echoing received requests. Ethernet connection is over an ENC28J60 board. Usage: Type the server's IP address into you web browser and hit <ENTER>.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programTcpServer_ENC28J60

Simple TCP/IP Server using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programTcpClient_ENC28J60

Simple TCP/IP Client using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programUdpServer_ENC28J60

Simple UDP Server using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programUdpClient_ENC28J60

Simple UDP Client using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programMQTT_Hello_ENC28J60

MQTT Client example program. Ethernet connection is via an ENC28J60 module.

Last commit 23 Jul 2020 by Zoltan Hudak

TcpServer.cpp

Committer:
hudakz
Date:
2019-09-07
Revision:
15:53715cc81c63
Parent:
13:95c00132cd98

File content as of revision 15:53715cc81c63:

/*
 TcpServer.cpp - Arduino implementation of a UIP wrapper class.
 Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
 All rights reserved.

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
#include "UipEthernet.h"
#include "TcpServer.h"
extern "C"
{
#include "utility/uip-conf.h"
}
/**
 * @brief
 * @note
 * @param
 * @retval
 */
TcpServer::TcpServer() :
    _conns(1)
{}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
TcpClient* TcpServer::accept()
{
    TcpClient* result = NULL;

    UipEthernet::ethernet->tick();
    for (uip_userdata_t * data = &TcpClient::all_data[0]; data < &TcpClient::all_data[_conns]; data++) {
        if
        (
            data->packets_in[0] != NOBLOCK &&
            (
                ((data->state & UIP_CLIENT_CONNECTED) && uip_conns[data->state & UIP_CLIENT_SOCKETS].lport == _port) ||
                ((data->state & UIP_CLIENT_REMOTECLOSED) && ((uip_userdata_closed_t*)data)->lport == _port)
            )
        ) {
            data->ripaddr[0] =  uip_conns[data->state & UIP_CLIENT_SOCKETS].ripaddr[0];
            data->ripaddr[1] =  uip_conns[data->state & UIP_CLIENT_SOCKETS].ripaddr[1];
            result = new TcpClient(data);
            result->setInstance(result);
            return result;
        }
    }

    return result;
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
void TcpServer::open(UipEthernet* ethernet)
{
    if (UipEthernet::ethernet != ethernet)
        UipEthernet::ethernet = ethernet;
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
void TcpServer::bind(uint8_t port)
{
    _port = htons(port);
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
void TcpServer::bind(const char* ip, uint8_t port)
{
    _port = htons(port);
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
void TcpServer::listen(uint8_t conns)
{
    _conns = _conns < UIP_CONNS ? conns : UIP_CONNS;
    uip_listen(_port);
    UipEthernet::ethernet->tick();
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
size_t TcpServer::send(uint8_t c)
{
    return send(&c, 1);
}

/**
 * @brief
 * @note
 * @param
 * @retval
 */
size_t TcpServer::send(const uint8_t* buf, size_t size)
{
    size_t  ret = 0;
    for (uip_userdata_t * data = &TcpClient::all_data[0]; data < &TcpClient::all_data[_conns]; data++) {
        if ((data->state & UIP_CLIENT_CONNECTED) && uip_conns[data->state & UIP_CLIENT_SOCKETS].lport == _port)
            ret += TcpClient::_write(data, buf, size);
    }

    return ret;
}