if_le.c revision 1.2
1 /* $NetBSD: if_le.c,v 1.2 2002/10/02 05:31:46 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Ralph Campbell and Rick Macklem. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 40 */ 41 42 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 43 44 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.2 2002/10/02 05:31:46 thorpej Exp $"); 45 46 #include "opt_inet.h" 47 #include "bpfilter.h" 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/mbuf.h> 52 #include <sys/socket.h> 53 #include <sys/device.h> 54 55 #include <net/if.h> 56 #include <net/if_ether.h> 57 #include <net/if_media.h> 58 59 #ifdef INET 60 #include <netinet/in.h> 61 #include <netinet/if_inarp.h> 62 #endif 63 64 #include <machine/cpu.h> 65 #include <machine/autoconf.h> 66 67 #include <luna68k/luna68k/isr.h> 68 69 #include <dev/ic/lancereg.h> 70 #include <dev/ic/lancevar.h> 71 #include <dev/ic/am7990reg.h> 72 #include <dev/ic/am7990var.h> 73 74 /* 75 * LANCE registers. 76 */ 77 struct lereg1 { 78 volatile u_int16_t ler1_rdp; /* data port */ 79 volatile u_int16_t ler1_rap; /* register select port */ 80 }; 81 82 /* 83 * Ethernet software status per interface. 84 * 85 * Each interface is referenced by a network interface structure, 86 * arpcom.ac_if, which the routing code uses to locate the interface. 87 * This structure contains the output queue for the interface, its address, ... 88 */ 89 struct le_softc { 90 struct am7990_softc sc_am7990; /* glue to MI code */ 91 92 struct lereg1 *sc_r1; /* LANCE registers */ 93 }; 94 95 static int le_match __P((struct device *, struct cfdata *, void *)); 96 static void le_attach __P((struct device *, struct device *, void *)); 97 98 CFATTACH_DECL(le, sizeof(struct le_softc), 99 le_match, le_attach, NULL, NULL); 100 extern struct cfdriver le_cd; 101 102 static void lesrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 103 static u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t)); 104 static void myetheraddr __P((u_int8_t *)); 105 106 static void 107 lesrcsr(sc, port, val) 108 struct lance_softc *sc; 109 u_int16_t port, val; 110 { 111 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 112 113 ler1->ler1_rap = port; 114 ler1->ler1_rdp = val; 115 } 116 117 static u_int16_t 118 lerdcsr(sc, port) 119 struct lance_softc *sc; 120 u_int16_t port; 121 { 122 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 123 u_int16_t val; 124 125 ler1->ler1_rap = port; 126 val = ler1->ler1_rdp; 127 return (val); 128 } 129 130 static int 131 le_match(parent, cf, aux) 132 struct device *parent; 133 struct cfdata *cf; 134 void *aux; 135 { 136 struct mainbus_attach_args *ma = aux; 137 138 if (strcmp(ma->ma_name, le_cd.cd_name)) 139 return (0); 140 141 return (1); 142 } 143 144 void 145 le_attach(parent, self, aux) 146 struct device *parent, *self; 147 void *aux; 148 { 149 struct le_softc *lesc = (void *)self; 150 struct lance_softc *sc = &lesc->sc_am7990.lsc; 151 struct mainbus_attach_args *ma = aux; 152 153 /* Map control registers. */ 154 lesc->sc_r1 = (struct lereg1 *)ma->ma_addr; /* LANCE */ 155 156 sc->sc_mem = (void *)0x71010000; /* SRAM */ 157 sc->sc_conf3 = LE_C3_BSWP; 158 sc->sc_addr = (u_long)sc->sc_mem & 0xffffff; 159 sc->sc_memsize = 64 * 1024; /* 64KB */ 160 161 myetheraddr(sc->sc_enaddr); 162 163 sc->sc_copytodesc = lance_copytobuf_contig; 164 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 165 sc->sc_copytobuf = lance_copytobuf_contig; 166 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 167 sc->sc_zerobuf = lance_zerobuf_contig; 168 169 sc->sc_rdcsr = lerdcsr; 170 sc->sc_wrcsr = lesrcsr; 171 sc->sc_hwinit = NULL; 172 173 am7990_config(&lesc->sc_am7990); 174 175 isrlink_autovec(am7990_intr, (void *)sc, ma->ma_ilvl, ISRPRI_NET); 176 } 177 178 /* 179 * LUNA-I has 1Mbit CPU ROM, which contains MAC address directly 180 * readable at 0x4100FFE0 as a sequence of 12 ASCII characters. 181 * 182 * LUNA-II has 16Kbit NVSRAM on its ethercard, whose contents are 183 * accessible 4bit-wise by ctl register operation. The register is 184 * mapped at 0xF1000004. 185 */ 186 void 187 myetheraddr(ether) 188 u_int8_t *ether; 189 { 190 unsigned i, loc; 191 u_int8_t *ea; 192 volatile struct { u_int32_t ctl; } *ds1220; 193 194 switch (machtype) { 195 case LUNA_I: 196 ea = (u_int8_t *)0x4101FFE0; 197 for (i = 0; i < 6; i++) { 198 int u, l; 199 200 u = ea[0]; 201 u = (u < 'A') ? u & 0xf : u - 'A' + 10; 202 l = ea[1]; 203 l = (l < 'A') ? l & 0xf : l - 'A' + 10; 204 205 ether[i] = l | (u << 4); 206 ea += 2; 207 } 208 break; 209 case LUNA_II: 210 ds1220 = (void *)0xF1000004; 211 loc = 12; 212 for (i = 0; i < 6; i++) { 213 unsigned u, l, hex; 214 215 ds1220->ctl = (loc) << 16; 216 u = 0xf0 & (ds1220->ctl >> 12); 217 ds1220->ctl = (loc + 1) << 16; 218 l = 0x0f & (ds1220->ctl >> 16); 219 hex = (u < '9') ? l : l + 9; 220 221 ds1220->ctl = (loc + 2) << 16; 222 u = 0xf0 & (ds1220->ctl >> 12); 223 ds1220->ctl = (loc + 3) << 16; 224 l = 0x0f & (ds1220->ctl >> 16); 225 226 ether[i] = ((u < '9') ? l : l + 9) | (hex << 4); 227 loc += 4; 228 } 229 break; 230 default: 231 ether[0] = 0x00; ether[1] = 0x00; ether[2] = 0x0a; 232 ether[3] = 0xDE; ether[4] = 0xAD; ether[5] = 0x00; 233 break; 234 } 235 } 236
Indexes created Fri Oct 03 02:09:57 GMT 2025