1 /* $NetBSD: if_ef.c,v 1.31 2011/06/03 16:28:40 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Rafal K. Boni. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: if_ef.c,v 1.31 2011/06/03 16:28:40 tsutsui Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/mbuf.h> 38 #include <sys/errno.h> 39 #include <sys/device.h> 40 #include <sys/protosw.h> 41 #include <sys/socket.h> 42 43 #include <net/if.h> 44 #include <net/if_dl.h> 45 #include <net/if_types.h> 46 #include <net/if_media.h> 47 #include <net/if_ether.h> 48 49 #include <sys/cpu.h> 50 #include <sys/bus.h> 51 #include <sys/intr.h> 52 53 #include <dev/isa/isareg.h> 54 #include <dev/isa/isavar.h> 55 56 #include <dev/ic/i82586reg.h> 57 #include <dev/ic/i82586var.h> 58 #include <dev/isa/if_efreg.h> 59 #include <dev/isa/elink.h> 60 61 #ifdef EF_DEBUG 62 #define DPRINTF(x) printf x 63 #else 64 #define DPRINTF(x) 65 #endif 66 67 struct ef_softc { 68 struct ie_softc sc_ie; 69 70 bus_space_tag_t sc_regt; /* space tag for registers */ 71 bus_space_handle_t sc_regh; /* space handle for registers */ 72 73 void* sc_ih; /* interrupt handle */ 74 75 u_int8_t card_rev; /* hardware revision */ 76 u_int8_t card_type; /* card model -- AUI/BNC or TP */ 77 }; 78 79 int ef_media[] = { 80 IFM_ETHER | IFM_10_5, 81 IFM_ETHER | IFM_10_2, 82 }; 83 #define NEF_MEDIA (sizeof(ef_media) / sizeof(ef_media[0])) 84 85 int eftp_media[] = { 86 IFM_ETHER | IFM_10_T, 87 }; 88 #define NEFTP_MEDIA (sizeof(eftp_media) / sizeof(eftp_media[0])) 89 90 /* Routines required by the MI i82586 driver API */ 91 static void ef_reset(struct ie_softc *, int); 92 static void ef_hwinit(struct ie_softc *); 93 static void ef_atten(struct ie_softc *, int); 94 static int ef_intrhook(struct ie_softc *, int); 95 96 static void ef_copyin(struct ie_softc *, void *, int, size_t); 97 static void ef_copyout(struct ie_softc *, const void *, int, size_t); 98 99 static u_int16_t ef_read_16(struct ie_softc *, int); 100 static void ef_write_16(struct ie_softc *, int, u_int16_t); 101 static void ef_write_24(struct ie_softc *, int, int); 102 103 static void ef_mediastatus(struct ie_softc *, struct ifmediareq *); 104 105 /* Local routines */ 106 static int ef_port_check(bus_space_tag_t, bus_space_handle_t); 107 108 int ef_match(device_t, cfdata_t, void *); 109 void ef_attach(device_t, device_t, void *); 110 111 /* 112 * This keeps track of which ISAs have been through an ie probe sequence. 113 * A simple static variable isn't enough, since it's conceivable that 114 * a system might have more than one ISA bus. 115 * 116 * The "isa_bus" member is a pointer to the parent ISA bus device struct 117 * which will unique per ISA bus. 118 */ 119 120 #define MAXCARDS_PER_ISABUS 8 /* if you have more than 8, you lose */ 121 122 struct ef_isabus { 123 LIST_ENTRY(ef_isabus) isa_link; 124 device_t isa_bus; 125 126 int bus_state; 127 128 struct card { 129 bus_addr_t iobase; 130 bus_addr_t maddr; 131 bus_size_t msize; 132 int irq; 133 int available; 134 } isa_cards[MAXCARDS_PER_ISABUS]; 135 }; 136 137 static LIST_HEAD(, ef_isabus) ef_isa_buses; 138 static int ef_isa_buses_inited; 139 140 static void 141 ef_card_add( 142 struct ef_isabus *bus, 143 bus_addr_t iobase, 144 bus_addr_t maddr, 145 bus_size_t msiz, 146 int irq) 147 { 148 int idx; 149 150 DPRINTF(("Adding 3c507 at 0x%x, IRQ %d, Mem 0x%lx/%ld\n", 151 (u_int) iobase, irq, (u_long) maddr, msiz)); 152 153 for (idx = 0; idx < MAXCARDS_PER_ISABUS; idx++) { 154 if (bus->isa_cards[idx].available == 0) { 155 bus->isa_cards[idx].iobase = iobase; 156 bus->isa_cards[idx].maddr = maddr; 157 bus->isa_cards[idx].msize = msiz; 158 bus->isa_cards[idx].irq = irq; 159 bus->isa_cards[idx].available = 1; 160 break; 161 } 162 } 163 } 164 165 /* 166 * 3C507 support routines 167 */ 168 static void 169 ef_reset(struct ie_softc *sc, int why) 170 { 171 struct ef_softc* esc = (struct ef_softc *) sc; 172 173 switch (why) { 174 case CHIP_PROBE: 175 /* reset to chip to see if it responds */ 176 bus_space_write_1(esc->sc_regt, esc->sc_regh, 177 EF_CTRL, EF_CTRL_RESET); 178 DELAY(100); 179 bus_space_write_1(esc->sc_regt, esc->sc_regh, 180 EF_CTRL, EF_CTRL_NORMAL); 181 DELAY(100); 182 break; 183 184 case CARD_RESET: 185 /* 186 * this takes around 10sec, and we can get 187 * by quite well w/out it... 188 */ 189 break; 190 } 191 } 192 193 static void 194 ef_atten(struct ie_softc *sc, int why) 195 { 196 struct ef_softc* esc = (struct ef_softc *) sc; 197 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ATTN, 1); 198 } 199 200 static void 201 ef_hwinit(struct ie_softc *sc) 202 { 203 struct ef_softc* esc = (struct ef_softc *) sc; 204 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1); 205 } 206 207 static int 208 ef_intrhook(struct ie_softc *sc, int where) 209 { 210 unsigned char cr; 211 struct ef_softc* esc = (struct ef_softc *) sc; 212 213 switch (where) { 214 case INTR_ENTER: 215 /* entering ISR: disable, ack card interrupts */ 216 cr = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_CTRL); 217 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL, 218 cr & ~EF_CTRL_IEN); 219 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1); 220 break; 221 222 case INTR_EXIT: 223 /* exiting ISR: re-enable card interrupts */ 224 cr = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_CTRL); 225 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL, 226 cr | EF_CTRL_IEN); 227 break; 228 229 case INTR_LOOP: 230 /* looping in ISR: ack new interrupts */ 231 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1); 232 break; 233 } 234 235 return 1; 236 } 237 238 static u_int16_t 239 ef_read_16 (struct ie_softc *sc, int offset) 240 { 241 bus_space_barrier(sc->bt, sc->bh, offset, 2, BUS_SPACE_BARRIER_READ); 242 return bus_space_read_2(sc->bt, sc->bh, offset); 243 } 244 245 static void 246 ef_copyin (struct ie_softc *sc, void *dst, int offset, size_t size) 247 { 248 int dribble; 249 u_int8_t* bptr = dst; 250 251 bus_space_barrier(sc->bt, sc->bh, offset, size, 252 BUS_SPACE_BARRIER_READ); 253 254 if (offset % 2) { 255 *bptr = bus_space_read_1(sc->bt, sc->bh, offset); 256 offset++; bptr++; size--; 257 } 258 259 dribble = size % 2; 260 bus_space_read_region_2(sc->bt, sc->bh, offset, (u_int16_t *) bptr, 261 size >> 1); 262 263 if (dribble) { 264 bptr += size - 1; 265 offset += size - 1; 266 *bptr = bus_space_read_1(sc->bt, sc->bh, offset); 267 } 268 } 269 270 static void 271 ef_copyout (struct ie_softc *sc, const void *src, int offset, size_t size) 272 { 273 int dribble; 274 int osize = size; 275 int ooffset = offset; 276 const u_int8_t* bptr = src; 277 278 if (offset % 2) { 279 bus_space_write_1(sc->bt, sc->bh, offset, *bptr); 280 offset++; bptr++; size--; 281 } 282 283 dribble = size % 2; 284 bus_space_write_region_2(sc->bt, sc->bh, offset, 285 (const u_int16_t *)bptr, size >> 1); 286 if (dribble) { 287 bptr += size - 1; 288 offset += size - 1; 289 bus_space_write_1(sc->bt, sc->bh, offset, *bptr); 290 } 291 292 bus_space_barrier(sc->bt, sc->bh, ooffset, osize, 293 BUS_SPACE_BARRIER_WRITE); 294 } 295 296 static void 297 ef_write_16 (struct ie_softc *sc, int offset, u_int16_t value) 298 { 299 bus_space_write_2(sc->bt, sc->bh, offset, value); 300 bus_space_barrier(sc->bt, sc->bh, offset, 2, BUS_SPACE_BARRIER_WRITE); 301 } 302 303 static void 304 ef_write_24 (struct ie_softc *sc, int offset, int addr) 305 { 306 bus_space_write_4(sc->bt, sc->bh, offset, addr + 307 (u_long) sc->sc_maddr - (u_long) sc->sc_iobase); 308 bus_space_barrier(sc->bt, sc->bh, offset, 4, BUS_SPACE_BARRIER_WRITE); 309 } 310 311 static void 312 ef_mediastatus(struct ie_softc *sc, struct ifmediareq *ifmr) 313 { 314 struct ifmedia *ifm = &sc->sc_media; 315 316 /* 317 * The currently selected media is always the active media. 318 */ 319 ifmr->ifm_active = ifm->ifm_cur->ifm_media; 320 } 321 322 int 323 ef_match(device_t parent, cfdata_t cf, void *aux) 324 { 325 struct isa_attach_args * const ia = aux; 326 327 int idx; 328 struct ef_isabus *bus; 329 330 bus_space_handle_t ioh; 331 bus_space_tag_t iot = ia->ia_iot; 332 333 if (ISA_DIRECT_CONFIG(ia)) 334 return (0); 335 336 if (ef_isa_buses_inited == 0) { 337 LIST_INIT(&ef_isa_buses); 338 ef_isa_buses_inited = 1; 339 } 340 341 /* 342 * Probe this bus if we haven't done so already. 343 */ 344 for (bus = ef_isa_buses.lh_first; bus != NULL; 345 bus = bus->isa_link.le_next) { 346 if (bus->isa_bus == parent) 347 break; 348 } 349 350 if (bus == NULL) { 351 bus_addr_t iobase; 352 353 /* 354 * Mark this bus so we don't probe it again. 355 */ 356 bus = (struct ef_isabus *) 357 malloc(sizeof(struct ef_isabus), M_DEVBUF, M_NOWAIT); 358 if (bus == NULL) 359 panic("ef_isa_probe: can't allocate state storage for %s", 360 device_xname(parent)); 361 362 bus->bus_state = 0; /* nothing done yet */ 363 bus->isa_bus = parent; 364 365 LIST_INSERT_HEAD(&ef_isa_buses, bus, isa_link); 366 367 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) { 368 DPRINTF(("3c507 probe: can't map Etherlink ID port\n")); 369 return 0; 370 } 371 372 /* 373 * Reset and put card in CONFIG state without 374 * changing address. 375 */ 376 elink_reset(iot, ioh, device_unit(parent)); 377 elink_idseq(iot, ioh, ELINK_507_POLY); 378 elink_idseq(iot, ioh, ELINK_507_POLY); 379 bus_space_write_1(iot, ioh, 0, 0xff); 380 381 /* Unmap the ID port */ 382 bus_space_unmap(iot, ioh, 1); 383 384 bus->bus_state++; /* cards now in CONFIG state */ 385 386 for (iobase = EF_IOBASE_LOW; iobase <= EF_IOBASE_HIGH; 387 iobase += EF_IOSIZE) { 388 /* 389 * Map the 507's port-space for the probe sequence. 390 */ 391 if (bus_space_map(iot, iobase, EF_IOSIZE, 392 0, &ioh) != 0) 393 continue; 394 395 /* Now look for the 3Com magic bytes */ 396 397 if (ef_port_check(iot, ioh)) { 398 int irq; 399 u_int8_t v; 400 bus_addr_t maddr; 401 bus_addr_t msiz1; 402 bus_space_handle_t memh; 403 404 irq = bus_space_read_1(iot, ioh, EF_IRQ) & 405 EF_IRQ_MASK; 406 407 v = bus_space_read_1(iot, ioh, EF_MADDR); 408 maddr = EF_MADDR_BASE + 409 ((v & EF_MADDR_MASK) << EF_MADDR_SHIFT); 410 msiz1 = ((v & EF_MSIZE_MASK) + 1) * 411 EF_MSIZE_STEP; 412 413 if (bus_space_map(ia->ia_memt, maddr, 414 msiz1, 0, &memh) == 0) { 415 ef_card_add(bus, iobase, maddr, 416 msiz1, irq); 417 bus_space_unmap(ia->ia_memt, 418 memh, msiz1); 419 } 420 } 421 bus_space_unmap(iot, ioh, EF_IOSIZE); 422 } 423 } 424 425 if (ia->ia_nio < 1) 426 return (0); 427 if (ia->ia_niomem < 1) 428 return (0); 429 if (ia->ia_nirq < 1) 430 return (0); 431 432 for (idx = 0; idx < MAXCARDS_PER_ISABUS; idx++) { 433 if (bus->isa_cards[idx].available != 1) 434 continue; 435 436 if (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT && 437 ia->ia_io[0].ir_addr != bus->isa_cards[idx].iobase) 438 continue; 439 440 if (ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM && 441 ia->ia_iomem[0].ir_addr != bus->isa_cards[idx].maddr) 442 continue; 443 444 if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ && 445 ia->ia_irq[0].ir_irq != bus->isa_cards[idx].irq) 446 continue; 447 448 break; 449 } 450 451 if (idx == MAXCARDS_PER_ISABUS) 452 return (0); 453 454 bus->isa_cards[idx].available++; 455 456 ia->ia_nio = 1; 457 ia->ia_io[0].ir_addr = bus->isa_cards[idx].iobase; 458 ia->ia_io[0].ir_size = EF_IOSIZE; 459 460 ia->ia_niomem = 1; 461 ia->ia_iomem[0].ir_addr = bus->isa_cards[idx].maddr; 462 ia->ia_iomem[0].ir_size = bus->isa_cards[idx].msize; 463 464 ia->ia_nirq = 1; 465 ia->ia_irq[0].ir_irq = bus->isa_cards[idx].irq; 466 467 ia->ia_ndrq = 0; 468 469 return (1); 470 } 471 472 void 473 ef_attach(device_t parent, device_t self, void *aux) 474 { 475 struct ef_softc *esc = device_private(self); 476 struct ie_softc *sc = &esc->sc_ie; 477 struct isa_attach_args *ia = aux; 478 bus_space_tag_t iot = ia->ia_iot; 479 480 int i; 481 char vers[20]; 482 struct ef_isabus *bus; 483 u_int8_t partno[EF_TYPE_LEN]; 484 bus_space_handle_t ioh, memh; 485 u_int8_t ethaddr[ETHER_ADDR_LEN]; 486 487 sc->sc_dev = self; 488 sc->hwinit = ef_hwinit; 489 sc->hwreset = ef_reset; 490 sc->chan_attn = ef_atten; 491 sc->intrhook = ef_intrhook; 492 493 sc->ie_bus_barrier = NULL; 494 495 sc->memcopyin = ef_copyin; 496 sc->memcopyout = ef_copyout; 497 sc->ie_bus_read16 = ef_read_16; 498 sc->ie_bus_write16 = ef_write_16; 499 sc->ie_bus_write24 = ef_write_24; 500 501 sc->sc_msize = 0; 502 503 /* 504 * NOP chains don't give any advantage on this card, in fact they 505 * seem to slow it down some. As the doctor says, "if it hurts, 506 * don't do it". 507 */ 508 sc->do_xmitnopchain = 0; 509 510 sc->sc_mediachange = NULL; 511 sc->sc_mediastatus = ef_mediastatus; 512 513 /* Find the cards parent bus */ 514 for (bus = ef_isa_buses.lh_first; bus != NULL; 515 bus = bus->isa_link.le_next) { 516 517 if (bus->isa_bus == parent) 518 break; 519 } 520 521 if (bus == NULL) 522 panic("%s: Can't find parent bus!", device_xname(self)); 523 524 525 /* If the bus hasn't been transitioned to the RUN state, do so now */ 526 if (bus->bus_state == 1) { 527 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh) != 0) { 528 DPRINTF(("\n%s: Can't map Elink ID port!\n", 529 device_xname(self))); 530 return; 531 } 532 533 bus_space_write_1(ia->ia_iot, ioh, 0, 0x00); 534 elink_idseq(ia->ia_iot, ioh, ELINK_507_POLY); 535 bus_space_write_1(ia->ia_iot, ioh, 0, 0x00); 536 bus_space_unmap(ia->ia_iot, ioh, 1); 537 538 bus->bus_state++; 539 } 540 541 /* Map i/o space. */ 542 if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, 543 ia->ia_io[0].ir_size, 0, &ioh) != 0) { 544 545 DPRINTF(("\n%s: can't map i/o space 0x%x-0x%x\n", 546 device_xname(self), ia->ia_io[0].ir_addr, 547 ia->ia_io[0].ir_addr + ia->ia_io[0].ir_size - 1)); 548 return; 549 } 550 551 esc->sc_regt = ia->ia_iot; 552 esc->sc_regh = ioh; 553 554 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, 555 ia->ia_iomem[0].ir_size, 0, &memh) != 0) { 556 557 DPRINTF(("\n%s: can't map iomem space 0x%x-0x%x\n", 558 device_xname(self), ia->ia_maddr, 559 ia->ia_maddr + ia->ia_msize - 1)); 560 bus_space_unmap(ia->ia_iot, ioh, ia->ia_io[0].ir_size); 561 return; 562 } 563 564 sc->bt = ia->ia_memt; 565 sc->bh = memh; 566 567 sc->sc_msize = ia->ia_iomem[0].ir_size; 568 sc->sc_maddr = (void *)memh; 569 sc->sc_iobase = (char *)sc->sc_maddr + sc->sc_msize - (1 << 24); 570 571 /* set up pointers to important on-card control structures */ 572 sc->iscp = 0; 573 sc->scb = IE_ISCP_SZ; 574 sc->scp = sc->sc_msize + IE_SCP_ADDR - (1 << 24); 575 576 sc->buf_area = sc->scb + IE_SCB_SZ; 577 sc->buf_area_sz = sc->sc_msize - IE_ISCP_SZ - IE_SCB_SZ - IE_SCP_SZ; 578 579 /* zero card memory */ 580 bus_space_set_region_1(sc->bt, sc->bh, 0, 0, sc->sc_msize); 581 582 /* set card to 16-bit bus mode */ 583 bus_space_write_1(sc->bt, sc->bh, IE_SCP_BUS_USE((u_long)sc->scp), 584 IE_SYSBUS_16BIT); 585 586 /* set up pointers to key structures */ 587 ef_write_24(sc, IE_SCP_ISCP((u_long)sc->scp), (u_long) sc->iscp); 588 ef_write_16(sc, IE_ISCP_SCB((u_long)sc->iscp), (u_long) sc->scb); 589 ef_write_24(sc, IE_ISCP_BASE((u_long)sc->iscp), (u_long) sc->iscp); 590 591 /* flush setup of pointers, check if chip answers */ 592 bus_space_barrier(sc->bt, sc->bh, 0, sc->sc_msize, 593 BUS_SPACE_BARRIER_WRITE); 594 if (!i82586_proberam(sc)) { 595 DPRINTF(("\n%s: can't talk to i82586!\n", 596 device_xname(self))); 597 bus_space_unmap(ia->ia_iot, ioh, ia->ia_io[0].ir_size); 598 bus_space_unmap(ia->ia_memt, memh, ia->ia_iomem[0].ir_size); 599 return; 600 } 601 602 /* set bank 2 for card part number and revision */ 603 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL, 604 EF_CTRL_NRST | EF_CTRL_BNK2); 605 606 /* card revision is encoded in BCD */ 607 i = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_REV); 608 esc->card_rev = 10 * (i / 16) + (i % 16); 609 610 for (i = 0; i < EF_TYPE_LEN; i++) 611 partno[i] = bus_space_read_1(esc->sc_regt, esc->sc_regh, 612 EF_TYPE + i); 613 614 /* use part number to guess if card is TP or AUI/BNC model */ 615 esc->card_type = EF_IS_TP(partno) ? EF_CARD_TP : EF_CARD_BNC; 616 617 /* set bank 0 for ethernet address */ 618 bus_space_write_1(esc->sc_regt, esc->sc_regh, 619 EF_CTRL, EF_CTRL_NORMAL); 620 621 for (i = 0; i < EF_ADDR_LEN; i++) 622 ethaddr[i] = bus_space_read_1(esc->sc_regt, esc->sc_regh, 623 EF_ADDR + i); 624 625 snprintf(vers, sizeof(vers), "%s, rev. %d", 626 (esc->card_type == EF_CARD_TP) ? "3C507-TP" : "3C507", 627 esc->card_rev); 628 629 if (esc->card_type == EF_CARD_TP) 630 i82586_attach(sc, vers, ethaddr, eftp_media, NEFTP_MEDIA, 631 eftp_media[0]); 632 else { 633 u_int8_t media = bus_space_read_1(esc->sc_regt, esc->sc_regh, 634 EF_MEDIA); 635 media = (media & EF_MEDIA_MASK) >> EF_MEDIA_SHIFT; 636 637 i82586_attach(sc, vers, ethaddr, ef_media, NEF_MEDIA, 638 ef_media[media]); 639 } 640 641 /* Clear the interrupt latch just in case. */ 642 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1); 643 644 esc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 645 IST_EDGE, IPL_NET, i82586_intr, sc); 646 if (esc->sc_ih == NULL) { 647 DPRINTF(("\n%s: can't establish interrupt\n", 648 device_xname(self))); 649 } 650 } 651 652 static int 653 ef_port_check(bus_space_tag_t iot, bus_space_handle_t ioh) 654 { 655 int i; 656 u_char ch; 657 const u_char* signature = EF_SIGNATURE; 658 659 for (i = 0; i < strlen(signature); i++) { 660 ch = bus_space_read_1(iot, ioh, i); 661 if (ch != signature[i]) 662 return 0; 663 } 664 665 /* If card is mapped in high memory (above 15Meg), we can't use it */ 666 ch = bus_space_read_1(iot, ioh, EF_MADDR); 667 if (ch & EF_MADDR_HIGH) 668 return 0; /* XXX: maybe we should panic?? */ 669 670 return 1; 671 } 672 673 CFATTACH_DECL_NEW(ef, sizeof(struct ef_softc), 674 ef_match, ef_attach, NULL, NULL); 675 676