+ static int ticks = 0;
+ int i = 15; /* Don't process more than 15 packets at a time; we don't want the host to get TOO badly slowed down... */
+
+ if (!_nic)
+ return;
+
+ smram_tseg_set_state(SMRAM_TSEG_OPEN);
+
+ if ((ticks % 1000) == 0) /* About a minute */
+ dhcp_coarse_tmr();
+ if ((ticks % 8) == 0) /* About 500msec*/
+ dhcp_fine_tmr();
+ if ((ticks % 4) == 0) /* About 250msec*/
+ tcp_tmr();
+ ticks++;
+
+ while (i > 0)
+ {
+ int n = _nic->recv(_nic);
+ i -= n;
+ if (n == 0)
+ break;
+ }
+}
+
+static err_t _transmit(struct netif *netif, struct pbuf *p)
+{
+ struct nic *nic = netif->state;
+
+// outputf("NIC: Transmit packet");
+
+ nic->transmit(p);
+
+ LINK_STATS_INC(link.xmit);
+
+ return ERR_OK;
+}
+
+static err_t _init(struct netif *netif)
+{
+ struct nic *nic = netif->state;
+
+ LWIP_ASSERT("netif != NULL", (netif != NULL));
+
+#if LWIP_NETIF_HOSTNAME
+ netif->hostname = "netwatch";
+#endif
+
+ NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 100000000);
+
+ netif->name[0] = 'e';
+ netif->name[1] = 'n';
+ netif->output = etharp_output;
+ netif->linkoutput = _transmit;
+
+ memcpy(netif->hwaddr, nic->hwaddr, 6);
+ netif->mtu = 1500;
+ netif->hwaddr_len = ETHARP_HWADDR_LEN;
+ netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
+
+ return ERR_OK;
+}
+
+int eth_register(struct nic *nic)
+{
+ static struct ip_addr ipa = { 0 } , netmask = { 0 } , gw = { 0 };
+
+ if (_nic)
+ return -1;
+ netif_add(&_netif, &ipa, &netmask, &gw, (void*)nic, _init, ethernet_input);
+ netif_set_default(&_netif);
+ netif_set_up(&_netif);
+ dhcp_start(&_netif);
+ _nic = nic;
+ return 0;