Ethernet Interface Library
Dependencies: Socket lwip-eth lwip-sys lwip
Fork of EthernetInterface by
Diff: EthernetInterface.cpp
- Revision:
- 3:f5776537f27f
- Child:
- 4:9a52c802be61
diff -r fa0875593d98 -r f5776537f27f EthernetInterface.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetInterface.cpp Tue Jun 26 14:30:34 2012 +0000 @@ -0,0 +1,145 @@ +/* Ethernetnetwork.cpp */ +/* Copyright (C) 2012 mbed.org, MIT License + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software + * and associated documentation files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all copies or + * substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#define __DEBUG__ 4 +#ifndef __MODULE__ +#define __MODULE__ "EthernetInterface.cpp" +#endif + +#include "core/fwk.h" + +#include "EthernetInterface.h" + +#include "lwip/inet.h" +#include "lwip/netif.h" +#include "netif/etharp.h" +#include "lwip/dhcp.h" +#include "arch/lpc17_emac.h" +#include "lpc_phy.h" /* For the PHY monitor support */ +#include "lwip/tcpip.h" + +#include "mbed.h" + + +EthernetInterface::EthernetInterface() : LwIPInterface(), m_lpcNetif(), m_netifStatusSphre(1), m_useDHCP(false) +{ + s_lpcNetifOff = (int32_t)( ((char*)this) - ((char*)&m_lpcNetif) ); + m_netifStatusSphre.wait(0); +} + +int EthernetInterface::init() //With DHCP +{ + m_useDHCP = true; + + DBG("Initializing LwIP"); + LwIPInterface::init(); //Init LwIP, NOT including PPP + + DBG("DHCP IP assignment"); + + memset((void*)&m_lpcNetif, 0, sizeof(m_lpcNetif)); + netif_add(&m_lpcNetif, NULL, NULL, NULL, NULL, lpc_enetif_init, ethernet_input/*tcpip_input???*/); + netif_set_default(&m_lpcNetif); + + netif_set_status_callback(&m_lpcNetif, &EthernetInterface::netifStatusCb); + + return OK; +} + +int EthernetInterface::init(const char* ip, const char* mask, const char* gateway, + const char* dns1, const char* dns2) //No DHCP +{ + ip_addr_t ip_n, mask_n, gateway_n, dns1_n, dns2_n; + + m_useDHCP = false; + + DBG("Initializing LwIP"); + LwIPInterface::init(); //Init LwIP + + DBG("Static IP assignment"); + inet_aton(ip, &ip_n); + inet_aton(mask, &mask_n); + inet_aton(gateway, &gateway_n); + inet_aton(dns1, &dns1_n); + inet_aton(dns2, &dns2_n); + + memset((void*)&m_lpcNetif, 0, sizeof(m_lpcNetif)); + netif_add(&m_lpcNetif, &ip_n, &mask_n, &gateway_n, NULL, lpc_enetif_init, ethernet_input/*tcpip_input???*/); + netif_set_default(&m_lpcNetif); + + netif_set_status_callback(&m_lpcNetif, &EthernetInterface::netifStatusCb); + + return OK; +} + +int EthernetInterface::connect() +{ + m_netifStatusSphre.wait(0); + + DBG("Enable MAC interrupts"); + NVIC_SetPriority(ENET_IRQn, ((0x01 << 3) | 0x01)); + NVIC_EnableIRQ(ENET_IRQn); + + if(m_useDHCP) + { + dhcp_start(&m_lpcNetif); //The DHCP client will set the interface up once the IP/Netmask/Getway/DNS Servers are recovered + } + else + { + netif_set_up(&m_lpcNetif); //Set interface up + } + + m_netifStatusSphre.wait(); + + DBG("Connected with IP %s", getIPAddress()); + + return OK; +} + +int EthernetInterface::disconnect() +{ + m_netifStatusSphre.wait(0); + + if(m_useDHCP) + { + dhcp_release(&m_lpcNetif); //Release the lease & bring interface down + dhcp_stop(&m_lpcNetif); + } + else + { + netif_set_down(&m_lpcNetif); + } + + DBG("Disable MAC interrupts"); + NVIC_DisableIRQ(ENET_IRQn); + + m_netifStatusSphre.wait(); + + return OK; +} + +/*static*/ void EthernetInterface::netifStatusCb(struct netif *netif) +{ + EthernetInterface* pIf = (EthernetInterface*)( ((int32_t)netif) + ((int32_t)s_lpcNetifOff) ); //Bad kludge + pIf->setIPAddress(inet_ntoa(netif->ip_addr)); + pIf->setConnected(netif_is_up(netif)?true:false); + pIf->m_netifStatusSphre.wait(0); //Clear if pending + pIf->m_netifStatusSphre.release(); +} + +/*static*/ int32_t EthernetInterface::s_lpcNetifOff = 0; \ No newline at end of file