1 /* $NetBSD: pcnet_pci.c,v 1.5 1999/02/19 19:30:47 drochner Exp $ */ 2 3 /* 4 * Copyright (c) 1996 5 * Matthias Drochner. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the NetBSD Project 18 * by Matthias Drochner. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 */ 34 35 36 #include <sys/types.h> 37 #include <machine/pio.h> 38 #include <lib/libkern/libkern.h> 39 #include <lib/libsa/stand.h> 40 41 #include <libi386.h> 42 #include <pcivar.h> 43 #include <bootinfo.h> 44 45 #include "etherdrv.h" 46 #include "lance.h" 47 48 int lance_rap, lance_rdp; 49 50 static pcihdl_t hdl; 51 52 u_char eth_myaddr[6]; 53 54 extern void am7990_init __P((void)); 55 extern void am7990_stop __P((void)); 56 57 static struct btinfo_netif bi_netif; 58 59 int EtherInit(myadr) 60 unsigned char *myadr; 61 { 62 int iobase, pcicsr, i; 63 64 if(pcicheck() == -1) { 65 printf("cannot access PCI\n"); 66 return(0); 67 } 68 69 if(pcifinddev(0x1022, 0x2000, &hdl)) { 70 printf("cannot find PCNET\n"); 71 return(0); 72 } 73 74 if(pcicfgread(&hdl, 0x10, &iobase) || !(iobase & 1)) { 75 printf("cannot map IO space\n"); 76 return(0); 77 } 78 iobase &= 0xfffffffc; 79 80 lance_rap = iobase + 0x12; 81 lance_rdp = iobase + 0x10; 82 83 /* make sure it's stopped */ 84 am7990_stop(); 85 86 /* enable bus mastering in PCI command register */ 87 if(pcicfgread(&hdl, 0x04, &pcicsr) 88 || pcicfgwrite(&hdl, 0x04, pcicsr | 4)) { 89 printf("cannot enable DMA\n"); 90 return(0); 91 } 92 93 for(i=0; i<6; i++) 94 myadr[i] = eth_myaddr[i] = inb(iobase + i); 95 96 am7990_init(); 97 98 strncpy(bi_netif.ifname, "le", sizeof(bi_netif.ifname)); 99 bi_netif.bus = BI_BUS_PCI; 100 bi_netif.addr.tag = hdl; 101 102 BI_ADD(&bi_netif, BTINFO_NETIF, sizeof(bi_netif)); 103 104 return(1); 105 } 106