EthernetV2_0.cpp

#include "w5200.h"
#include "EthernetV2_0.h"
#include "DhcpV2_0.h"

// XXX: don't make assumptions about the value of MAX_SOCK_NUM.
uint8_t EthernetClass::_state[MAX_SOCK_NUM] = {
    0, 0, 0, 0
};
uint16_t EthernetClass::_server_port[MAX_SOCK_NUM] = {
    0, 0, 0, 0
};

int EthernetClass::begin(uint8_t* mac_address) {
    _dhcp = new DhcpClass();


    // Initialise the basic info
    W5100.init();
    W5100.setMACAddress(mac_address);
    W5100.setIPAddress(IPAddress(0, 0, 0, 0).raw_address());

    // Now try to get our config info from a DHCP server
    int ret = _dhcp->beginWithDHCP(mac_address);
    if (ret == 1) {
        // We've successfully found a DHCP server and got our configuration info, so set things
        // accordingly
        W5100.setIPAddress(_dhcp->getLocalIp().raw_address());
        W5100.setGatewayIp(_dhcp->getGatewayIp().raw_address());
        W5100.setSubnetMask(_dhcp->getSubnetMask().raw_address());
        _dnsServerAddress = _dhcp->getDnsServerIp();
    }

    return ret;
}

void EthernetClass::begin(uint8_t* mac_address, IPAddress local_ip) {
    // Assume the DNS server will be the machine on the same network as the local IP
    // but with last octet being '1'
    IPAddress dns_server = local_ip;
    dns_server[3] = 1;
    begin(mac_address, local_ip, dns_server);
}

void EthernetClass::begin(uint8_t* mac_address, IPAddress local_ip, IPAddress dns_server) {
    // Assume the gateway will be the machine on the same network as the local IP
    // but with last octet being '1'
    IPAddress gateway = local_ip;
    gateway[3] = 1;
    begin(mac_address, local_ip, dns_server, gateway);
}

void EthernetClass::begin(uint8_t* mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway) {
    IPAddress subnet(255, 255, 255, 0);
    begin(mac_address, local_ip, dns_server, gateway, subnet);
}

void EthernetClass::begin(uint8_t* mac, IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet) {
    W5100.init();
    W5100.setMACAddress(mac);
    W5100.setIPAddress(local_ip.raw_address());
    W5100.setGatewayIp(gateway.raw_address());
    W5100.setSubnetMask(subnet.raw_address());
    _dnsServerAddress = dns_server;
}

int EthernetClass::maintain() {
    int rc = DHCP_CHECK_NONE;
    if (_dhcp != NULL) {
        //we have a pointer to dhcp, use it
        rc = _dhcp->checkLease();
        switch (rc) {
            case DHCP_CHECK_NONE:
                //nothing done
                break;
            case DHCP_CHECK_RENEW_OK:
            case DHCP_CHECK_REBIND_OK:
                //we might have got a new IP.
                W5100.setIPAddress(_dhcp->getLocalIp().raw_address());
                W5100.setGatewayIp(_dhcp->getGatewayIp().raw_address());
                W5100.setSubnetMask(_dhcp->getSubnetMask().raw_address());
                _dnsServerAddress = _dhcp->getDnsServerIp();
                break;
            default:
                //this is actually a error, it will retry though
                break;
        }
    }
    return rc;
}

IPAddress EthernetClass::localIP() {
    IPAddress ret;
    W5100.getIPAddress(ret.raw_address());
    return ret;
}

IPAddress EthernetClass::subnetMask() {
    IPAddress ret;
    W5100.getSubnetMask(ret.raw_address());
    return ret;
}

IPAddress EthernetClass::gatewayIP() {
    IPAddress ret;
    W5100.getGatewayIp(ret.raw_address());
    return ret;
}

IPAddress EthernetClass::dnsServerIP() {
    return _dnsServerAddress;
}

EthernetClass Ethernet;