161 lines
3.8 KiB
C
161 lines
3.8 KiB
C
/* $NetBSD: 3c590.c,v 1.8 1998/02/25 12:15:49 drochner Exp $ */
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/* stripped down from freebsd:sys/i386/netboot/3c509.c */
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/**************************************************************************
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NETBOOT - BOOTP/TFTP Bootstrap Program
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Author: Martin Renters.
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Date: Mar 22 1995
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This code is based heavily on David Greenman's if_ed.c driver and
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Andres Vega Garcia's if_ep.c driver.
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Copyright (C) 1993-1994, David Greenman, Martin Renters.
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Copyright (C) 1993-1995, Andres Vega Garcia.
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Copyright (C) 1995, Serge Babkin.
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This software may be used, modified, copied, distributed, and sold, in
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both source and binary form provided that the above copyright and these
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terms are retained. Under no circumstances are the authors responsible for
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the proper functioning of this software, nor do the authors assume any
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responsibility for damages incurred with its use.
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3c509 support added by Serge Babkin (babkin@hq.icb.chel.su)
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3c509.c,v 1.2 1995/05/30 07:58:52 rgrimes Exp
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***************************************************************************/
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#include <sys/types.h>
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#include <machine/pio.h>
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#include <lib/libsa/stand.h>
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#include <libi386.h>
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#include <pcivar.h>
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#ifdef _STANDALONE
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#include <lib/libkern/libkern.h>
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#include <bootinfo.h>
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#endif
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#include "etherdrv.h"
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#include "3c509.h"
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#define EP_W3_INTERNAL_CONFIG 0x00 /* 32 bits */
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#define EP_W3_RESET_OPTIONS 0x08 /* 16 bits */
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int ether_medium;
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unsigned short eth_base;
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extern void epreset __P((void));
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extern int ep_get_e __P((int));
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u_char eth_myaddr[6];
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static struct mtabentry {
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int address_cfg; /* configured connector */
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int config_bit; /* connector present */
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char *name;
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} mediatab[] = { /* indexed by media type - etherdrv.h */
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{3, 0x10, "BNC"},
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{0, 0x08, "UTP"},
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{1, 0x20, "AUI"},
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{6, 0x40, "MII"},
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};
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#ifdef _STANDALONE
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static struct btinfo_netif bi_netif;
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#endif
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/**************************************************************************
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ETH_PROBE - Look for an adapter
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***************************************************************************/
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int EtherInit(myadr)
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char *myadr;
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{
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/* common variables */
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int i, j;
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/* variables for 3C509 */
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short *p;
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struct mtabentry *m;
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/*********************************************************
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Search for 3Com 590 card
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***********************************************************/
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pcihdl_t hdl;
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int iobase;
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if(pcicheck() == -1) {
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printf("cannot access PCI\n");
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return(0);
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}
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if (pcifinddev(0x10b7, 0x5900, &hdl) &&
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pcifinddev(0x10b7, 0x9000, &hdl) &&
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pcifinddev(0x10b7, 0x9001, &hdl) &&
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pcifinddev(0x10b7, 0x9050, &hdl)) {
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printf("cannot find 3c590 / 3c900\n");
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return(0);
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}
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if(pcicfgread(&hdl, 0x10, &iobase) || !(iobase & 1)) {
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printf("cannot map IO space\n");
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return(0);
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}
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eth_base = iobase & 0xfffffffc;
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/* test for presence of connectors */
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GO_WINDOW(3);
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i = inb(IS_BASE + EP_W3_RESET_OPTIONS);
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j = (inw(IS_BASE + EP_W3_INTERNAL_CONFIG + 2) >> 4) & 7;
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GO_WINDOW(0);
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for(ether_medium = 0, m = mediatab;
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ether_medium < sizeof(mediatab) / sizeof(mediatab[0]);
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ether_medium++, m++) {
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if(j == m->address_cfg) {
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if(!(i & m->config_bit)) {
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printf("%s not present\n", m->name);
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return(0);
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}
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printf("using %s\n", m->name);
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goto ok;
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}
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}
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printf("unknown connector\n");
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return(0);
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ok:
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/*
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* Read the station address from the eeprom
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*/
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p = (u_short *) eth_myaddr;
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for (i = 0; i < 3; i++) {
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u_short help;
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GO_WINDOW(0);
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help = ep_get_e(i);
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p[i] = ((help & 0xff) << 8) | ((help & 0xff00) >> 8);
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GO_WINDOW(2);
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outw(BASE + EP_W2_ADDR_0 + (i * 2), help);
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}
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for(i = 0; i < 6; i++)
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myadr[i] = eth_myaddr[i];
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epreset();
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#ifdef _STANDALONE
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strncpy(bi_netif.ifname, "ep", sizeof(bi_netif.ifname));
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bi_netif.bus = BI_BUS_PCI;
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bi_netif.addr.tag = hdl;
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BI_ADD(&bi_netif, BTINFO_NETIF, sizeof(bi_netif));
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#endif
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return(1);
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}
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