if_le.c revision 1.19
1 /* $NetBSD: if_le.c,v 1.19 2000/06/26 14:21:04 mrg Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 9 * Simulation Facility, NASA Ames Research Center. 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 NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /*- 41 * Copyright (c) 1992, 1993 42 * The Regents of the University of California. All rights reserved. 43 * 44 * This code is derived from software contributed to Berkeley by 45 * Ralph Campbell and Rick Macklem. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. All advertising materials mentioning features or use of this software 56 * must display the following acknowledgement: 57 * This product includes software developed by the University of 58 * California, Berkeley and its contributors. 59 * 4. Neither the name of the University nor the names of its contributors 60 * may be used to endorse or promote products derived from this software 61 * without specific prior written permission. 62 * 63 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 64 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 66 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 69 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 70 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 71 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 72 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 73 * SUCH DAMAGE. 74 * 75 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 76 */ 77 78 #include "opt_inet.h" 79 #include "bpfilter.h" 80 81 #include <sys/param.h> 82 #include <sys/syslog.h> 83 #include <sys/socket.h> 84 #include <sys/device.h> 85 #include <sys/reboot.h> 86 87 #include <vm/vm.h> 88 89 #include <uvm/uvm_extern.h> 90 91 #include <net/if.h> 92 #include <net/if_ether.h> 93 #include <net/if_media.h> 94 95 #if INET 96 #include <netinet/in.h> 97 #include <netinet/if_inarp.h> 98 #endif 99 100 #include <machine/cpu.h> 101 #include <machine/nexus.h> 102 #include <machine/scb.h> 103 104 #include <dev/ic/lancereg.h> 105 #include <dev/ic/lancevar.h> 106 #include <dev/ic/am7990reg.h> 107 #include <dev/ic/am7990var.h> 108 109 #include "ioconf.h" 110 111 #define LEVEC 0xd4 /* Interrupt vector on 3300/3400 */ 112 113 struct le_softc { 114 struct am7990_softc sc_am7990; /* Must be first */ 115 struct evcnt sc_intrcnt; 116 volatile u_short *sc_rap; 117 volatile u_short *sc_rdp; 118 }; 119 120 int le_ibus_match __P((struct device *, struct cfdata *, void *)); 121 void le_ibus_attach __P((struct device *, struct device *, void *)); 122 void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 123 u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t)); 124 void lance_copytobuf_gap2 __P((struct lance_softc *, void *, int, int)); 125 void lance_copyfrombuf_gap2 __P((struct lance_softc *, void *, int, int)); 126 void lance_zerobuf_gap2 __P((struct lance_softc *, int, int)); 127 128 struct cfattach le_ibus_ca = { 129 sizeof(struct le_softc), le_ibus_match, le_ibus_attach 130 }; 131 132 void 133 lewrcsr(ls, port, val) 134 struct lance_softc *ls; 135 u_int16_t port, val; 136 { 137 struct le_softc *sc = (void *)ls; 138 139 *sc->sc_rap = port; 140 *sc->sc_rdp = val; 141 } 142 143 u_int16_t 144 lerdcsr(ls, port) 145 struct lance_softc *ls; 146 u_int16_t port; 147 { 148 struct le_softc *sc = (void *)ls; 149 150 *sc->sc_rap = port; 151 return *sc->sc_rdp; 152 } 153 154 int 155 le_ibus_match(parent, cf, aux) 156 struct device *parent; 157 struct cfdata *cf; 158 void *aux; 159 { 160 struct bp_conf *bp = aux; 161 162 if (strcmp("lance", bp->type)) 163 return 0; 164 return 1; 165 } 166 167 void 168 le_ibus_attach(parent, self, aux) 169 struct device *parent, *self; 170 void *aux; 171 { 172 struct le_softc *sc = (void *)self; 173 int *lance_addr; 174 int i, vec, br; 175 176 sc->sc_rdp = (short *)vax_map_physmem(0x20084400, 1); 177 sc->sc_rap = sc->sc_rdp + 2; 178 179 /* 180 * Set interrupt vector, by forcing an interrupt. 181 */ 182 scb_vecref(0, 0); /* Clear vector ref */ 183 *sc->sc_rap = LE_CSR0; 184 *sc->sc_rdp = LE_C0_STOP; 185 DELAY(100); 186 *sc->sc_rdp = LE_C0_INIT|LE_C0_INEA; 187 DELAY(100000); 188 i = scb_vecref(&vec, &br); 189 if (i == 0 || vec == 0) 190 return; 191 scb_vecalloc(vec, (void (*)(void *))am7990_intr, sc, 192 SCB_ISTACK, &sc->sc_intrcnt); 193 evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 194 self->dv_xname, "intr"); 195 196 printf(": vec %o ipl %x\n%s", vec, br, self->dv_xname); 197 /* 198 * MD functions. 199 */ 200 sc->sc_am7990.lsc.sc_rdcsr = lerdcsr; 201 sc->sc_am7990.lsc.sc_wrcsr = lewrcsr; 202 sc->sc_am7990.lsc.sc_nocarrier = NULL; 203 204 sc->sc_am7990.lsc.sc_mem = 205 (void *)uvm_km_valloc(kernel_map, (128 * 1024)); 206 if (sc->sc_am7990.lsc.sc_mem == 0) 207 return; 208 209 ioaccess((vaddr_t)sc->sc_am7990.lsc.sc_mem, 0x20120000, 210 (128 * 1024) >> VAX_PGSHIFT); 211 212 213 sc->sc_am7990.lsc.sc_addr = 0; 214 sc->sc_am7990.lsc.sc_memsize = (64 * 1024); 215 216 sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_gap2; 217 sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_gap2; 218 sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_gap2; 219 sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_gap2; 220 sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_gap2; 221 222 /* 223 * Get the ethernet address out of rom 224 */ 225 lance_addr = (int *)vax_map_physmem(0x20084200, 1); 226 for (i = 0; i < 6; i++) 227 sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i]; 228 vax_unmap_physmem((vaddr_t)lance_addr, 1); 229 230 bcopy(self->dv_xname, sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname, 231 IFNAMSIZ); 232 am7990_config(&sc->sc_am7990); 233 } 234 235 /* 236 * gap2: two bytes of data followed by two bytes of pad. 237 * 238 * Buffers must be 4-byte aligned. The code doesn't worry about 239 * doing an extra byte. 240 */ 241 242 void 243 lance_copytobuf_gap2(sc, fromv, boff, len) 244 struct lance_softc *sc; 245 void *fromv; 246 int boff; 247 register int len; 248 { 249 volatile caddr_t buf = sc->sc_mem; 250 register caddr_t from = fromv; 251 register volatile u_int16_t *bptr; 252 253 if (boff & 0x1) { 254 /* handle unaligned first byte */ 255 bptr = ((volatile u_int16_t *)buf) + (boff - 1); 256 *bptr = (*from++ << 8) | (*bptr & 0xff); 257 bptr += 2; 258 len--; 259 } else 260 bptr = ((volatile u_int16_t *)buf) + boff; 261 while (len > 1) { 262 *bptr = (from[1] << 8) | (from[0] & 0xff); 263 bptr += 2; 264 from += 2; 265 len -= 2; 266 } 267 if (len == 1) 268 *bptr = (u_int16_t)*from; 269 } 270 271 void 272 lance_copyfrombuf_gap2(sc, tov, boff, len) 273 struct lance_softc *sc; 274 void *tov; 275 int boff, len; 276 { 277 volatile caddr_t buf = sc->sc_mem; 278 register caddr_t to = tov; 279 register volatile u_int16_t *bptr; 280 register u_int16_t tmp; 281 282 if (boff & 0x1) { 283 /* handle unaligned first byte */ 284 bptr = ((volatile u_int16_t *)buf) + (boff - 1); 285 *to++ = (*bptr >> 8) & 0xff; 286 bptr += 2; 287 len--; 288 } else 289 bptr = ((volatile u_int16_t *)buf) + boff; 290 while (len > 1) { 291 tmp = *bptr; 292 *to++ = tmp & 0xff; 293 *to++ = (tmp >> 8) & 0xff; 294 bptr += 2; 295 len -= 2; 296 } 297 if (len == 1) 298 *to = *bptr & 0xff; 299 } 300 301 void 302 lance_zerobuf_gap2(sc, boff, len) 303 struct lance_softc *sc; 304 int boff, len; 305 { 306 volatile caddr_t buf = sc->sc_mem; 307 register volatile u_int16_t *bptr; 308 309 if ((unsigned)boff & 0x1) { 310 bptr = ((volatile u_int16_t *)buf) + (boff - 1); 311 *bptr &= 0xff; 312 bptr += 2; 313 len--; 314 } else 315 bptr = ((volatile u_int16_t *)buf) + boff; 316 while (len > 0) { 317 *bptr = 0; 318 bptr += 2; 319 len -= 2; 320 } 321 } 322
Indexes created Tue Sep 23 20:09:58 GMT 2025