mbed IP library over Ethernet with setName and setNewAddress
Dependencies: Socket lwip-eth lwip-sys lwip
Dependents: JRO_CR2 JRO_DDSv2 JRO_DDSv2_rev2019
Fork of EthernetInterface by
EthernetInterface.cpp
- Committer:
- miguelcordero191
- Date:
- 2015-02-05
- Revision:
- 47:3b0a475eb1ad
- Parent:
- 46:4cb91998b200
- Child:
- 48:303f4d8389a1
File content as of revision 47:3b0a475eb1ad:
/* EthernetInterface.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. */ #include "EthernetInterface.h" #include "lwip/inet.h" #include "lwip/netif.h" #include "netif/etharp.h" #include "lwip/dhcp.h" #include "eth_arch.h" #include "lwip/tcpip.h" #include "mbed.h" /* TCP/IP and Network Interface Initialisation */ static struct netif netif; static char mac_addr[19]; static char ip_addr[17] = "\0"; static char gateway[17] = "\0"; static char networkmask[17] = "\0"; static bool use_dhcp = false; static char myName[33]; // holds the name, when setName() is called. static Semaphore tcpip_inited(0); static Semaphore netif_linked(0); static Semaphore netif_up(0); static void tcpip_init_done(void *arg) { tcpip_inited.release(); } static void netif_link_callback(struct netif *netif) { if (netif_is_link_up(netif)) { netif_linked.release(); } } static void netif_status_callback(struct netif *netif) { if (netif_is_up(netif)) { strcpy(ip_addr, inet_ntoa(netif->ip_addr)); strcpy(gateway, inet_ntoa(netif->gw)); strcpy(networkmask, inet_ntoa(netif->netmask)); netif_up.release(); } } static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) { tcpip_init(tcpip_init_done, NULL); tcpip_inited.wait(); memset((void*) &netif, 0, sizeof(netif)); netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input); netif_set_default(&netif); netif_set_link_callback (&netif, netif_link_callback); netif_set_status_callback(&netif, netif_status_callback); } static void set_mac_address(void) { #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE) snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2, MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5); #else char mac[6]; mbed_mac_address(mac); snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); #endif } static void set_new_addr(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) { netif_set_addr(&netif, ipaddr, netmask, gw); } int EthernetInterface::init() { use_dhcp = true; set_mac_address(); init_netif(NULL, NULL, NULL); return 0; } int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) { use_dhcp = false; set_mac_address(); strcpy(ip_addr, ip); ip_addr_t ip_n, mask_n, gateway_n; inet_aton(ip, &ip_n); inet_aton(mask, &mask_n); inet_aton(gateway, &gateway_n); init_netif(&ip_n, &mask_n, &gateway_n); return 0; } int EthernetInterface::setNewAddr(const char* ip, const char* mask, const char* gateway) { use_dhcp = false; strcpy(ip_addr, ip); ip_addr_t ip_n, mask_n, gateway_n; inet_aton(ip, &ip_n); inet_aton(mask, &mask_n); inet_aton(gateway, &gateway_n); set_new_addr(&ip_n, &mask_n, &gateway_n); return 0; } int EthernetInterface::setName(const char * myname) { int i; strncpy(myName, myname, 32); myName[32] = '\0'; // be sure it is NULL terminated. // make the name 'safe' /* for (i=0; i<32 && myName[i]; i++) { if (!inRange(myName[i], '0', '9') && !inRange(myName[i], 'A', 'Z') && !inRange(myName[i], 'a', 'z')) myName[i] = '-'; } */ netif_set_hostname(&netif, myName); return 0; } int EthernetInterface::connect(unsigned int timeout_ms) { eth_arch_enable_interrupts(); int inited; if (use_dhcp) { dhcp_start(&netif); // Wait for an IP Address // -1: error, 0: timeout inited = netif_up.wait(timeout_ms); } else { netif_set_up(&netif); // Wait for the link up inited = netif_linked.wait(timeout_ms); } return (inited > 0) ? (0) : (-1); } int EthernetInterface::disconnect() { if (use_dhcp) { dhcp_release(&netif); dhcp_stop(&netif); } else { netif_set_down(&netif); } eth_arch_disable_interrupts(); return 0; } char* EthernetInterface::getMACAddress() { return mac_addr; } char* EthernetInterface::getIPAddress() { return ip_addr; } char* EthernetInterface::getGateway() { return gateway; } char* EthernetInterface::getNetworkMask() { return networkmask; }