Daniel Peter / Net

if/eth/EthernetNetIf.cpp@0:d616ece2d859, 2010-09-18 (annotated)

Committer:
mbed714
Date:
Sat Sep 18 23:05:49 2010 +0000
Revision:
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/*





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Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)





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Permission is hereby granted, free of charge, to any person obtaining a copy





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of this software and associated documentation files (the "Software"), to deal





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in the Software without restriction, including without limitation the rights





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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell





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copies of the Software, and to permit persons to whom the Software is





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furnished to do so, subject to the following conditions:





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The above copyright notice and this permission notice shall be included in





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all copies or substantial portions of the Software.





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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR





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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,





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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE





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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER





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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,





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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN





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THE SOFTWARE.





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*/





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#include "EthernetNetIf.h"





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#include "netif/etharp.h"





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#include "lwip/dhcp.h"





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#include "lwip/dns.h"





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#include "lwip/igmp.h"





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#include "drv/eth/eth_drv.h"





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#include "mbed.h"





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#define __DEBUG





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#include "dbg/dbg.h"





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#include "netCfg.h"





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#if NET_ETH





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EthernetNetIf::EthernetNetIf() : LwipNetIf(), m_ethArpTimer(), m_dhcpCoarseTimer(), m_dhcpFineTimer(), m_igmpTimer(), m_pNetIf(NULL),





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m_netmask(255,255,255,255), m_gateway(), m_hostname(NULL)





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{





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  m_hostname = NULL;





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  m_pNetIf = new netif;





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  m_useDhcp = true;





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}





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EthernetNetIf::EthernetNetIf(IpAddr ip, IpAddr netmask, IpAddr gateway, IpAddr dns) : LwipNetIf(), m_ethArpTimer(), m_dhcpCoarseTimer(), m_dhcpFineTimer(), m_igmpTimer(), m_pNetIf(NULL), m_hostname(NULL) //W/o DHCP





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{





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  m_hostname = NULL;





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  m_netmask = netmask;





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  m_gateway = gateway;





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  m_ip = ip;





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  m_pNetIf = new netif;





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  dns_setserver(0, &dns.getStruct());





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  m_useDhcp = false;





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}





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EthernetNetIf::~EthernetNetIf()





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{





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  if(m_pNetIf)





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  {





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    igmp_stop(m_pNetIf); //Stop IGMP processing





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    netif_set_down(m_pNetIf);





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    netif_remove(m_pNetIf);





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    delete m_pNetIf;





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    eth_free();





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  }





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}





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EthernetErr EthernetNetIf::setup(int timeout_ms /*= 15000*/)





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{





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  LwipNetIf::init();





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  //m_ethArpTicker.attach_us(&etharp_tmr,  ARP_TMR_INTERVAL  * 1000); // = 5s in etharp.h





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  m_ethArpTimer.start();





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  if(m_useDhcp)





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  {





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    //m_dhcpCoarseTicker.attach(&dhcp_coarse_tmr, DHCP_COARSE_TIMER_SECS); // = 60s in dhcp.h





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    //m_dhcpFineTicker.attach_us(&dhcp_fine_tmr, DHCP_FINE_TIMER_MSECS * 1000); // = 500ms in dhcp.h





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    m_dhcpCoarseTimer.start();





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    m_dhcpFineTimer.start();





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  }





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  m_pNetIf->hwaddr_len = ETHARP_HWADDR_LEN; //6





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  eth_address((char *)m_pNetIf->hwaddr);





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  DBG("HW Addr is : %02x:%02x:%02x:%02x:%02x:%02x.\n", 





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  m_pNetIf->hwaddr[0], m_pNetIf->hwaddr[1], m_pNetIf->hwaddr[2],





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  m_pNetIf->hwaddr[3], m_pNetIf->hwaddr[4], m_pNetIf->hwaddr[5]);





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  m_pNetIf = netif_add(m_pNetIf, &(m_ip.getStruct()), &(m_netmask.getStruct()), &(m_gateway.getStruct()), NULL, eth_init, ip_input);//ethernet_input);// ip_input);





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  //m_pNetIf->hostname = "mbedDG";//(char *)m_hostname; //Not used for now





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  netif_set_default(m_pNetIf);





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  //DBG("\r\nStarting DHCP.\r\n");





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  if(m_useDhcp)





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  {





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    dhcp_start(m_pNetIf);





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    DBG("DHCP Started, waiting for IP...\n");





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  }





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  else





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  {





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    netif_set_up(m_pNetIf);





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  }





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  Timer timeout;





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  timeout.start();





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  while( !netif_is_up(m_pNetIf) ) //Wait until device is up





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  {





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    if(m_useDhcp)





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    {





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      if(m_dhcpFineTimer.read_ms()>=DHCP_FINE_TIMER_MSECS)





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      {





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        m_dhcpFineTimer.reset();





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        dhcp_fine_tmr();





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      }





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      if(m_dhcpCoarseTimer.read()>=DHCP_COARSE_TIMER_SECS)





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      {





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        m_dhcpCoarseTimer.reset();





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        dhcp_coarse_tmr();





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      }





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    }





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    poll();





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    if( timeout.read_ms() > timeout_ms )





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    {





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      //Abort





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      if(m_useDhcp)





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        dhcp_stop(m_pNetIf);





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      else





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        netif_set_down(m_pNetIf);





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      DBG("\r\nTimeout.\r\n");





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      return ETH_TIMEOUT;





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    }





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  }





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  #if LWIP_IGMP





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  igmp_start(m_pNetIf); //Start IGMP processing





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  #endif





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  m_ip = IpAddr(&(m_pNetIf->ip_addr));





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  DBG("Connected, IP : %d.%d.%d.%d\n", m_ip[0], m_ip[1], m_ip[2], m_ip[3]);





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  return ETH_OK;





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}





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void EthernetNetIf::poll()





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{





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  if(m_ethArpTimer.read_ms()>=ARP_TMR_INTERVAL)





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  {





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    m_ethArpTimer.reset();





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    etharp_tmr();





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  }





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  #if LWIP_IGMP





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  if(m_igmpTimer.read_ms()>=IGMP_TMR_INTERVAL)





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  {





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    m_igmpTimer.reset();





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    igmp_tmr();





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  }





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  #endif





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  LwipNetIf::poll();





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  eth_poll();





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}





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#endif