X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/6c744a5a5235383b230e3854db9458409ad8781a..bc9e1044fd166db4e75cdc39b2aaa17d942b3ca4:/net/net.c diff --git a/net/net.c b/net/net.c index 98571b0..5d0c75b 100644 --- a/net/net.c +++ b/net/net.c @@ -1,75 +1,136 @@ #include -#include -#include #include #include #include +#include +#include #include "net.h" +#include "lwip/opt.h" +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/pbuf.h" +#include "lwip/sys.h" +#include +#include +#include +#include +#include "netif/etharp.h" +#include "netif/ppp_oe.h" + +#include "rfb.h" + static struct nic *_nic = 0x0; +static struct netif _netif; extern struct pci_driver a3c90x_driver; -static char test[1024] = {0}; - -static unsigned char vga_read(unsigned char idx) +void eth_poll() { - outb(CRTC_IDX_REG, idx); - return inb(CRTC_DATA_REG); + struct pbuf *p; + struct eth_hdr *ethhdr; + 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 ((p = _nic->recv(_nic)) != NULL) + { +// outputf("NIC: Packet: %d bytes", p->tot_len); + + 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; + } + } } -static unsigned int vga_base() +static err_t _transmit(struct netif *netif, struct pbuf *p) { - return (((unsigned int) vga_read(CRTC_START_ADDR_MSB_IDX)) << 9) - + (((unsigned int) vga_read(CRTC_START_ADDR_LSB_IDX)) << 1); + struct nic *nic = netif->state; + +// outputf("NIC: Transmit packet"); + + nic->transmit(p); + + LINK_STATS_INC(link.xmit); + + return ERR_OK; } -void eth_poll() +static err_t _init(struct netif *netif) { - int i; -// static int c; - static short pos = 0x0; - unsigned short base = vga_base(); - unsigned char *p = (unsigned char *)0xB8000; - smram_state_t old_state; - - if (!_nic) - return; - - _nic->poll(_nic, 0); - smram_tseg_set_state(SMRAM_TSEG_OPEN); - old_state = smram_save_state(); + struct nic *nic = netif->state; -// if ((c++) % 2) -// return; + LWIP_ASSERT("netif != NULL", (netif != NULL)); + +#if LWIP_NETIF_HOSTNAME + netif->hostname = "netwatch"; +#endif - test[0] = pos >> 8; - test[1] = pos & 0xFF; - test[2] = base >> 8; - test[3] = base & 0xFF; + NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 100000000); - smram_aseg_set_state(SMRAM_ASEG_SMMCODE); + netif->name[0] = 'e'; + netif->name[1] = 'n'; + netif->output = etharp_output; + netif->linkoutput = _transmit; - for (i = 4; i < 1024; i++) - { - test[i] = p[pos++]; - pos %= 0x8000; - } - smram_restore_state(old_state); - _nic->transmit("\x00\x03\x93\x87\x84\x8C", 0x1337, 1024, test); + 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() { + extern void httpd_init(); + /* Required for DMA to work. :( */ smram_tseg_set_state(SMRAM_TSEG_OPEN); - pci_probe_driver(a3c90x_driver); + lwip_init(); + httpd_init(); + + rfb_init(); + }