Hostname can now be set
Dependencies: Socket lwip-eth lwip-sys lwip
Dependents: GolemTemperaturCheck
Fork of EthernetInterface by
EthernetInterface.cpp
00001 /* EthernetInterface.cpp */ 00002 /* Copyright (C) 2012 mbed.org, MIT License 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 00005 * and associated documentation files (the "Software"), to deal in the Software without restriction, 00006 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 00007 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 00008 * furnished to do so, subject to the following conditions: 00009 * 00010 * The above copyright notice and this permission notice shall be included in all copies or 00011 * substantial portions of the Software. 00012 * 00013 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 00014 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00015 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 00016 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00017 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00018 */ 00019 #include "EthernetInterface.h" 00020 00021 #include "lwip/inet.h" 00022 #include "lwip/netif.h" 00023 #include "netif/etharp.h" 00024 #include "lwip/dhcp.h" 00025 #include "eth_arch.h" 00026 #include "lwip/tcpip.h" 00027 00028 #include "mbed.h" 00029 00030 /* TCP/IP and Network Interface Initialisation */ 00031 static struct netif netif; 00032 00033 static char mac_addr[19]; 00034 static char ip_addr[17] = "\0"; 00035 static char gateway[17] = "\0"; 00036 static char networkmask[17] = "\0"; 00037 static bool use_dhcp = false; 00038 00039 static Semaphore tcpip_inited(0); 00040 static Semaphore netif_linked(0); 00041 static Semaphore netif_up(0); 00042 00043 static void tcpip_init_done(void *arg) { 00044 tcpip_inited.release(); 00045 } 00046 00047 static void netif_link_callback(struct netif *netif) { 00048 if (netif_is_link_up(netif)) { 00049 netif_linked.release(); 00050 } 00051 } 00052 00053 static void netif_status_callback(struct netif *netif) { 00054 if (netif_is_up(netif)) { 00055 strcpy(ip_addr, inet_ntoa(netif->ip_addr)); 00056 strcpy(gateway, inet_ntoa(netif->gw)); 00057 strcpy(networkmask, inet_ntoa(netif->netmask)); 00058 netif_up.release(); 00059 } 00060 } 00061 00062 static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw, char * hostname) { 00063 tcpip_init(tcpip_init_done, NULL); 00064 tcpip_inited.wait(); 00065 00066 memset((void*) &netif, 0, sizeof(netif)); 00067 netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input); 00068 netif_set_default(&netif); 00069 00070 if (hostname != NULL) 00071 { 00072 netif.hostname = hostname; 00073 } 00074 00075 netif_set_link_callback (&netif, netif_link_callback); 00076 netif_set_status_callback(&netif, netif_status_callback); 00077 } 00078 00079 static void set_mac_address(void) { 00080 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE) 00081 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2, 00082 MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5); 00083 #else 00084 char mac[6]; 00085 mbed_mac_address(mac); 00086 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); 00087 #endif 00088 } 00089 00090 int EthernetInterface::init(char * hostname) { 00091 use_dhcp = true; 00092 set_mac_address(); 00093 init_netif(NULL, NULL, NULL, hostname); 00094 return 0; 00095 } 00096 00097 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway, char * hostname) { 00098 use_dhcp = false; 00099 00100 set_mac_address(); 00101 strcpy(ip_addr, ip); 00102 00103 ip_addr_t ip_n, mask_n, gateway_n; 00104 inet_aton(ip, &ip_n); 00105 inet_aton(mask, &mask_n); 00106 inet_aton(gateway, &gateway_n); 00107 init_netif(&ip_n, &mask_n, &gateway_n, hostname); 00108 00109 return 0; 00110 } 00111 00112 /*int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) { 00113 use_dhcp = false; 00114 00115 set_mac_address(); 00116 strcpy(ip_addr, ip); 00117 00118 ip_addr_t ip_n, mask_n, gateway_n; 00119 inet_aton(ip, &ip_n); 00120 inet_aton(mask, &mask_n); 00121 inet_aton(gateway, &gateway_n); 00122 init_netif(&ip_n, &mask_n, &gateway_n); 00123 00124 return 0; 00125 }*/ 00126 00127 int EthernetInterface::connect(unsigned int timeout_ms) { 00128 eth_arch_enable_interrupts(); 00129 00130 int inited; 00131 if (use_dhcp) { 00132 dhcp_start(&netif); 00133 00134 // Wait for an IP Address 00135 // -1: error, 0: timeout 00136 inited = netif_up.wait(timeout_ms); 00137 } else { 00138 netif_set_up(&netif); 00139 00140 // Wait for the link up 00141 inited = netif_linked.wait(timeout_ms); 00142 } 00143 00144 return (inited > 0) ? (0) : (-1); 00145 } 00146 00147 int EthernetInterface::disconnect() { 00148 if (use_dhcp) { 00149 dhcp_release(&netif); 00150 dhcp_stop(&netif); 00151 } else { 00152 netif_set_down(&netif); 00153 } 00154 00155 eth_arch_disable_interrupts(); 00156 00157 return 0; 00158 } 00159 00160 char* EthernetInterface::getMACAddress() { 00161 return mac_addr; 00162 } 00163 00164 char* EthernetInterface::getIPAddress() { 00165 return ip_addr; 00166 } 00167 00168 char* EthernetInterface::getGateway() { 00169 return gateway; 00170 } 00171 00172 char* EthernetInterface::getNetworkMask() { 00173 return networkmask; 00174 } 00175 00176
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