mbed IP library over Ethernet PHY KSZ8031
Dependencies: Socket lwip-eth lwip-sys lwip
Fork of EthernetInterface by
EthernetInterface.cpp
- Committer:
- emilmont
- Date:
- 2012-08-04
- Revision:
- 22:2a797ba9babe
- Parent:
- 21:8cd2de462559
- Child:
- 26:dd9794ce1d64
File content as of revision 22:2a797ba9babe:
/* 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 "arch/lpc17_emac.h" #include "lpc_phy.h" #include "lwip/tcpip.h" #include "mbed.h" /* TCP/IP and Network Interface Initialisation */ static struct netif lpcNetif; static Semaphore tcpip_inited(0); static Semaphore netif_inited(0); static char ip_addr[16]; static bool connected; static bool use_dhcp = false; static void tcpip_init_done(void *arg) { tcpip_inited.release(); } static void netif_status_callback(struct netif *netif) { strcpy(ip_addr, inet_ntoa(netif->ip_addr)); connected = netif_is_up(netif) ? true : false; netif_inited.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*) &lpcNetif, 0, sizeof(lpcNetif)); netif_add(&lpcNetif, ipaddr, netmask, gw, NULL, lpc_enetif_init, tcpip_input); netif_set_default(&lpcNetif); netif_set_status_callback(&lpcNetif, netif_status_callback); } int EthernetInterface::init() { use_dhcp = true; init_netif(NULL, NULL, NULL); return 0; } int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) { use_dhcp = false; 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::connect(unsigned int timeout_ms) { NVIC_SetPriority(ENET_IRQn, ((0x01 << 3) | 0x01)); NVIC_EnableIRQ(ENET_IRQn); if (use_dhcp) { dhcp_start(&lpcNetif); } else { netif_set_up(&lpcNetif); } // -1: error, 0: timeout int inited = netif_inited.wait(timeout_ms); return (inited > 0) ? (0) : (-1); } int EthernetInterface::disconnect() { if (use_dhcp) { dhcp_release(&lpcNetif); dhcp_stop(&lpcNetif); } else { netif_set_down(&lpcNetif); } NVIC_DisableIRQ(ENET_IRQn); return 0; } char* EthernetInterface::getIPAddress() { return (connected) ? (ip_addr) : (NULL); }