EthConfig.cpp

00001 /*
00002  * EthSetup.cpp
00003  * Setup ethernet interface, based on config file
00004  * Read IP, Gateway, DNS and port for server.
00005  * if IP is not defined, or dhcp is set, use dhcp for Ethernet
00006  *
00007  * Copyright (c) 2011 Peter Brier
00008  *
00009  *   This file is part of the LaOS project (see: http://wiki.protospace.nl/index.php/LaOS)
00010  *
00011  *   LaOS is free software: you can redistribute it and/or modify
00012  *   it under the terms of the GNU General Public License as published by
00013  *   the Free Software Foundation, either version 3 of the License, or
00014  *   (at your option) any later version.
00015  *
00016  *   LaOS is distributed in the hope that it will be useful,
00017  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  *   MERCHANTABILITY or FpITNESS FOR A PARTICULAR PURPOSE.  See the
00019  *   GNU General Public License for more details.
00020  *
00021  *   You should have received a copy of the GNU General Public License
00022  *   along with LaOS.  If not, see <http://www.gnu.org/licenses/>.
00023  *
00024  */
00025 #include "EthConfig.h"
00026 
00027 // Ethernet connection status inputs (from phy) and outputs (to leds)
00028 #define ETH_LINK (1<<25)
00029 #define ETH_SPEED (1<<26)
00030 PortIn eth_conn(Port1, ETH_LINK | ETH_SPEED);   // p25: link, 0=connected, 1=NC, p26: speed, 0=100mbit, 1=10mbit
00031 
00032 
00033 /**
00034 *** Return Speed status, true==100mbps
00035 **/
00036 bool EthSpeed(void)
00037 {
00038   int s = eth_conn.read();
00039   return !(s & ETH_SPEED) && !(s & ETH_LINK);
00040 }
00041 
00042 /**
00043 *** Return Link status, true==connected
00044 **/
00045 bool EthLink(void)
00046 {
00047   int s = eth_conn.read();
00048   return !(s & ETH_LINK);
00049 }
00050 
00051 #define IP(x) IpAddr(x[0], x[1], x[2], x[3])
00052 
00053 
00054 /**
00055 *** EthConfig
00056 **/
00057 EthernetNetIf * EthConfig()
00058  {
00059     EthernetNetIf *eth;
00060     if ( cfg->dhcp )
00061     {
00062         printf("DHCP...\n");
00063         eth = new EthernetNetIf();
00064     }
00065     else
00066     {
00067         printf("FIXED IP...\n");
00068         eth = new EthernetNetIf(IP(cfg->ip), IP(cfg->nm), IP(cfg->gw), IP(cfg->dns));
00069     }
00070     printf("Ethernet Setup...\n");
00071     if ( eth->setup() == ETH_TIMEOUT ) 
00072     {
00073         printf("Timeout!\n");
00074         delete eth;
00075         eth = new EthernetNetIf(IP(cfg->ip), IP(cfg->nm), IP(cfg->gw), IP(cfg->dns));
00076     }
00077 
00078     IpAddr myip = eth->getIp();
00079     cfg->ip[0] = myip[0];
00080     cfg->ip[1] = myip[1];
00081     cfg->ip[2] = myip[2];
00082     cfg->ip[3] = myip[3];
00083     
00084     printf("mbed IP Address is %d.%d.%d.%d\r\n", myip[0], myip[1], myip[2], myip[3]);
00085     return eth;
00086 }