X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/c61d5f405f2f7fcdcc0a883e18ae7873f4fcd9d7..d0dc32550bab5d545b91dd76003f04b827968f41:/net/net.c

diff --git a/net/net.c b/net/net.c
index 7f1932f..7fa7c46 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1,38 +1,168 @@
 #include <pci.h>
+#include <smram.h>
+#include <pci-bother.h>
 #include <output.h>
+#include <minilib.h>
+#include <lwip/init.h>
 #include "net.h"
 
-static int found = 0, _bus, _dev, _fn;
+#include "lwip/opt.h"
+#include "lwip/def.h"
+#include "lwip/mem.h"
+#include "lwip/pbuf.h"
+#include "lwip/sys.h"
+#include <lwip/stats.h>
+#include <lwip/snmp.h>
+#include <lwip/dhcp.h>
+#include <lwip/tcp.h>
+#include "netif/etharp.h"
+#include "netif/ppp_oe.h"
 
-struct nic nic;
+#include "rfb.h"
 
-static int bother_3c905(pci_dev_t *dev, void *nutrinus)
+static struct nic *_nic = 0x0;
+static struct netif _netif;
+
+extern struct pci_driver a3c90x_driver;
+
+void eth_poll()
 {
-	if (dev->vid == 0x10B7 || dev->did == 0x9200)
+	unsigned char pkt[1600];
+	int len;
+	struct pbuf *p, *q;
+	struct eth_hdr *ethhdr;
+	int pos = 0;
+	static int ticks = 0;
+	
+	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++;
+
+	if (_nic->poll(_nic, 0))
 	{
-		outputf("Found a 3c905 to bother");
+		_nic->packet = pkt;
+		_nic->poll(_nic, 1);
 		
-		_bus = dev->bus;
-		_dev = dev->dev;
-		_fn = dev->fn;
-		found = 1;
+		len = _nic->packetlen;
+		
+		outputf("NIC: Packet: %d bytes", len);
+			
+		p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
+		if (p == NULL)
+		{
+			outputf("NIC: out of memory for packet?");
+			LINK_STATS_INC(link.memerr);
+			LINK_STATS_INC(link.drop);
+			return;
+		}
+	
+		for(q = p; q != NULL; q = q->next)
+		{
+			memcpy(q->payload, pkt+pos, q->len);
+			pos += q->len;
+		}
 		
-		return 1;
+		LINK_STATS_INC(link.recv);
+		
+		ethhdr = p->payload;
+		
+		switch (htons(ethhdr->type)) {
+		case ETHTYPE_IP:
+		case ETHTYPE_ARP:
+			if (_netif.input(p, &_netif) != ERR_OK)
+			{
+				LWIP_DEBUGF(NETIF_DEBUG, ("netdev_input: IP input error\n"));
+				pbuf_free(p);
+			}
+			break;
+			
+		default:
+			outputf("Unhandled packet type %04x input", ethhdr->type);
+			pbuf_free(p);
+			break;
+		}
 	}
-	return 0;
 }
 
-void eth_poll()
+static err_t _transmit(struct netif *netif, struct pbuf *p)
 {
-	if (!found)
-		return;
+	struct nic *nic = netif->state;
+	struct pbuf *q;
+	unsigned char pkt[1600];
+	unsigned int len = 0;
+
+	for(q = p; q != NULL; q = q->next)
+	{
+		memcpy(pkt + len, q->payload, q->len);
+		len += q->len;
+	}
+
+	outputf("NIC: Transmit packet: %d bytes", len);
+
+	nic->transmit(len, pkt);
+
+	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));
 		
-	pci_write16(_bus, _dev, _fn, 0x04, 0xFF);
+#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;
 	
-	pci_write16(_bus, _dev, _fn, 0x04, 0x00);
+	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;
 }
 
 void eth_init()
 {
-	pci_probe(bother_3c905, 0x0);
+	extern void httpd_init();
+	
+	/* Required for DMA to work. :( */
+	smram_tseg_set_state(SMRAM_TSEG_OPEN);
+	lwip_init();
+	httpd_init();
+
+	rfb_init();
+
 }