Joshua Wise's Git repositories - netwatch.git/blame_incremental

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Commit	Line	Data
	1	#include <pci.h>
	2	#include <smram.h>
	3	#include <pci-bother.h>
	4	#include <output.h>
	5	#include <minilib.h>
	6	#include <lwip/init.h>
	7	#include "net.h"
	8
	9	#include "lwip/opt.h"
	10	#include "lwip/def.h"
	11	#include "lwip/mem.h"
	12	#include "lwip/pbuf.h"
	13	#include "lwip/sys.h"
	14	#include <lwip/stats.h>
	15	#include <lwip/snmp.h>
	16	#include <lwip/dhcp.h>
	17	#include <lwip/tcp.h>
	18	#include "netif/etharp.h"
	19	#include "netif/ppp_oe.h"
	20
	21	static struct nic *_nic = 0x0;
	22	static struct netif _netif;
	23
	24	extern struct pci_driver a3c90x_driver;
	25
	26	void eth_poll()
	27	{
	28	unsigned char pkt[1600];
	29	int len;
	30	struct pbuf p, q;
	31	struct eth_hdr *ethhdr;
	32	int pos = 0;
	33	static int ticks = 0;
	34
	35	if (!_nic)
	36	return;
	37
	38	smram_tseg_set_state(SMRAM_TSEG_OPEN);
	39
	40	if ((ticks % 1000) == 0) /* About a minute */
	41	dhcp_coarse_tmr();
	42	if ((ticks % 8) == 0) /* About 500msec*/
	43	dhcp_fine_tmr();
	44	if ((ticks % 4) == 0) /* About 250msec*/
	45	tcp_tmr();
	46	ticks++;
	47
	48	if (_nic->poll(_nic, 0))
	49	{
	50	_nic->packet = pkt;
	51	_nic->poll(_nic, 1);
	52
	53	len = _nic->packetlen;
	54
	55	outputf("NIC: Packet: %d bytes", len);
	56
	57	p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
	58	if (p == NULL)
	59	{
	60	outputf("NIC: out of memory for packet?");
	61	LINK_STATS_INC(link.memerr);
	62	LINK_STATS_INC(link.drop);
	63	return;
	64	}
	65
	66	for(q = p; q != NULL; q = q->next)
	67	{
	68	memcpy(q->payload, pkt+pos, q->len);
	69	pos += q->len;
	70	}
	71
	72	LINK_STATS_INC(link.recv);
	73
	74	ethhdr = p->payload;
	75
	76	switch (htons(ethhdr->type)) {
	77	case ETHTYPE_IP:
	78	case ETHTYPE_ARP:
	79	if (_netif.input(p, &_netif) != ERR_OK)
	80	{
	81	LWIP_DEBUGF(NETIF_DEBUG, ("netdev_input: IP input error\n"));
	82	pbuf_free(p);
	83	}
	84	break;
	85
	86	default:
	87	outputf("Unhandled packet type %04x input", ethhdr->type);
	88	pbuf_free(p);
	89	break;
	90	}
	91	}
	92	}
	93
	94	static err_t _transmit(struct netif netif, struct pbuf p)
	95	{
	96	struct nic *nic = netif->state;
	97	struct pbuf *q;
	98	unsigned char pkt[1600];
	99	unsigned int len = 0;
	100
	101	for(q = p; q != NULL; q = q->next)
	102	{
	103	memcpy(pkt + len, q->payload, q->len);
	104	len += q->len;
	105	}
	106
	107	outputf("NIC: Transmit packet: %d bytes", len);
	108
	109	nic->transmit(len, pkt);
	110
	111	LINK_STATS_INC(link.xmit);
	112
	113	return ERR_OK;
	114	}
	115
	116	static err_t _init(struct netif *netif)
	117	{
	118	struct nic *nic = netif->state;
	119
	120	LWIP_ASSERT("netif != NULL", (netif != NULL));
	121
	122	#if LWIP_NETIF_HOSTNAME
	123	netif->hostname = "netwatch";
	124	#endif
	125
	126	NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 100000000);
	127
	128	netif->name[0] = 'e';
	129	netif->name[1] = 'n';
	130	netif->output = etharp_output;
	131	netif->linkoutput = _transmit;
	132
	133	memcpy(netif->hwaddr, nic->hwaddr, 6);
	134	netif->mtu = 1500;
	135	netif->hwaddr_len = ETHARP_HWADDR_LEN;
	136	netif->flags = NETIF_FLAG_BROADCAST \| NETIF_FLAG_ETHARP \| NETIF_FLAG_LINK_UP;
	137
	138	return ERR_OK;
	139	}
	140
	141	int eth_register(struct nic *nic)
	142	{
	143	static struct ip_addr ipa = { 0 } , netmask = { 0 } , gw = { 0 };
	144
	145	if (_nic)
	146	return -1;
	147	netif_add(&_netif, &ipa, &netmask, &gw, (void*)nic, _init, ethernet_input);
	148	netif_set_default(&_netif);
	149	netif_set_up(&_netif);
	150	dhcp_start(&_netif);
	151	_nic = nic;
	152	return 0;
	153	}
	154
	155	void eth_init()
	156	{
	157	extern void httpd_init();
	158
	159	/* Required for DMA to work. :( */
	160	smram_tseg_set_state(SMRAM_TSEG_OPEN);
	161	lwip_init();
	162	pci_probe_driver(a3c90x_driver);
	163	httpd_init();
	164	}