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122 lines
3.0 KiB
122 lines
3.0 KiB
void |
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eth_mac_irq() |
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{ |
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/* Service MAC IRQ here */ |
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/* Allocate pbuf from pool (avoid using heap in interrupts) */ |
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struct pbuf* p = pbuf_alloc(PBUF_RAW, eth_data_count, PBUF_POOL); |
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if(p != NULL) { |
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/* Copy ethernet frame into pbuf */ |
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pbuf_take(p, eth_data, eth_data_count); |
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/* Put in a queue which is processed in main loop */ |
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if(!queue_try_put(&queue, p)) { |
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/* queue is full -> packet loss */ |
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pbuf_free(p); |
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} |
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} |
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} |
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static err_t |
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netif_output(struct netif *netif, struct pbuf *p) |
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{ |
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LINK_STATS_INC(link.xmit); |
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/* Update SNMP stats (only if you use SNMP) */ |
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MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p->tot_len); |
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int unicast = ((p->payload[0] & 0x01) == 0); |
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if (unicast) { |
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MIB2_STATS_NETIF_INC(netif, ifoutucastpkts); |
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} else { |
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MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts); |
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} |
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lock_interrupts(); |
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pbuf_copy_partial(p, mac_send_buffer, p->tot_len, 0); |
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/* Start MAC transmit here */ |
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unlock_interrupts(); |
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return ERR_OK; |
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} |
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static void |
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netif_status_callback(struct netif *netif) |
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{ |
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printf("netif status changed %s\n", ip4addr_ntoa(netif_ip4_addr(netif))); |
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} |
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static err_t |
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netif_init(struct netif *netif) |
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{ |
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netif->linkoutput = netif_output; |
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netif->output = etharp_output; |
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netif->output_ip6 = ethip6_output; |
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netif->mtu = ETHERNET_MTU; |
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netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP | NETIF_FLAG_MLD6; |
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MIB2_INIT_NETIF(netif, snmp_ifType_ethernet_csmacd, 100000000); |
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SMEMCPY(netif->hwaddr, your_mac_address_goes_here, ETH_HWADDR_LEN); |
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netif->hwaddr_len = ETH_HWADDR_LEN; |
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return ERR_OK; |
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} |
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void |
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main(void) |
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{ |
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struct netif netif; |
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lwip_init(); |
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netif_add(&netif, IP4_ADDR_ANY, IP4_ADDR_ANY, IP4_ADDR_ANY, NULL, netif_init, netif_input); |
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netif.name[0] = 'e'; |
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netif.name[1] = '0'; |
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netif_create_ip6_linklocal_address(&netif, 1); |
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netif.ip6_autoconfig_enabled = 1; |
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netif_set_status_callback(&netif, netif_status_callback); |
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netif_set_default(&netif); |
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netif_set_up(&netif); |
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/* Start DHCP and HTTPD */ |
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dhcp_start(&netif ); |
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httpd_init(); |
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while(1) { |
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/* Check link state, e.g. via MDIO communication with PHY */ |
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if(link_state_changed()) { |
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if(link_is_up()) { |
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netif_set_link_up(&netif); |
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} else { |
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netif_set_link_down(&netif); |
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} |
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} |
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/* Check for received frames, feed them to lwIP */ |
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lock_interrupts(); |
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struct pbuf* p = queue_try_get(&queue); |
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unlock_interrupts(); |
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if(p != NULL) { |
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LINK_STATS_INC(link.recv); |
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/* Update SNMP stats (only if you use SNMP) */ |
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MIB2_STATS_NETIF_ADD(netif, ifinoctets, p->tot_len); |
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int unicast = ((p->payload[0] & 0x01) == 0); |
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if (unicast) { |
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MIB2_STATS_NETIF_INC(netif, ifinucastpkts); |
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} else { |
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MIB2_STATS_NETIF_INC(netif, ifinnucastpkts); |
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} |
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if(netif.input(p, &netif) != ERR_OK) { |
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pbuf_free(p); |
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} |
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} |
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/* Cyclic lwIP timers check */ |
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sys_check_timeouts(); |
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/* your application goes here */ |
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} |
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}
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