Used in Live Traffic Update Nokia LCD Display Project
Fork of NetServices by
drv/eth/eth_drv.cpp
- Committer:
- rrajan8
- Date:
- 2013-03-06
- Revision:
- 8:92b57208ab99
- Parent:
- 4:966a0265edfc
File content as of revision 8:92b57208ab99:
/* Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) 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 "netCfg.h" #if NET_ETH #include "mbed.h" Ethernet *pEth = NULL; #ifdef __cplusplus extern "C" { #endif #include "lwip/opt.h" #include "lwip/def.h" #include "lwip/pbuf.h" #include "lwip/sys.h" #include "lwip/stats.h" #include "netif/etharp.h" #include "string.h" //#include "eth_drv.h" #define IFNAME0 'E' #define IFNAME1 'X' #define min(x,y) (((x)<(y))?(x):(y)) struct netif* eth_netif; static err_t eth_output(struct netif *netif, struct pbuf *p) { #if ETH_PAD_SIZE pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */ #endif do { pEth->write((const char *)p->payload, p->len); } while((p = p->next)!=NULL); pEth->send(); #if ETH_PAD_SIZE pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */ #endif LINK_STATS_INC(link.xmit); return ERR_OK; } /* void show(char *buf, int size) { printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]); printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n", buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]); printf("Type %hd\n", htons((short)buf[12])); // hexview(buf, size); } */ void eth_poll() { struct eth_hdr *ethhdr; struct pbuf *frame, *p; int len, read; while((len = pEth->receive()) != 0) { frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL); if(frame == NULL) { return; } p = frame; /* no packet could be read, silently ignore this */ if (p == NULL) return; do { read = pEth->read((char *)p->payload, p->len); p = p->next; } while(p != NULL && read != 0); #if ETH_PAD_SIZE pbuf_header(p, ETH_PAD_SIZE); #endif ethhdr = (struct eth_hdr *)(frame->payload); // show((char*)ethhdr, 13); /* switch(htons(ethhdr->type)) { case ETHTYPE_IP: etharp_ip_input(gnetif, frame); pbuf_header(frame, -((s16_t) sizeof(struct eth_hdr))); gnetif->input(frame, gnetif); break; case ETHTYPE_ARP: etharp_arp_input(gnetif, (struct eth_addr *)(gnetif->hwaddr), frame); break; default: break; }*/ //ethernet_input(frame, gnetif); switch (htons(ethhdr->type)) { /* IP or ARP packet? */ case ETHTYPE_IP: case ETHTYPE_ARP: #if PPPOE_SUPPORT /* PPPoE packet? */ case ETHTYPE_PPPOEDISC: case ETHTYPE_PPPOE: #endif /* PPPOE_SUPPORT */ /* full packet send to tcpip_thread to process */ //if (netif->input(p, gnetif)!=ERR_OK) if (ethernet_input(frame, eth_netif)!=ERR_OK) { LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n")); pbuf_free(frame); frame = NULL; } break; default: pbuf_free(frame); frame = NULL; break; } /* pbuf_free(frame); */ } } err_t eth_init(struct netif *netif) { LWIP_ASSERT("netif != NULL", (netif != NULL)); NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA); /* maximum transfer unit */ netif->mtu = 0x2EA; /* device capabilities */ /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */ netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP | NETIF_FLAG_IGMP; netif->state = NULL; eth_netif = netif; netif->name[0] = IFNAME0; netif->name[1] = IFNAME1; /* We directly use etharp_output() here to save a function call. * You can instead declare your own function an call etharp_output() * from it if you have to do some checks before sending (e.g. if link * is available...) */ netif->output = etharp_output; netif->linkoutput = eth_output; if (!pEth) pEth = new Ethernet(); // only create Ethernet object if required return ERR_OK; } void eth_free() { if(pEth) delete pEth; pEth = NULL; } void eth_address(char* mac) { pEth->address(mac); } Ethernet* eth_interface() { return pEth; } #ifdef __cplusplus }; #endif #endif