1 /* $OpenBSD: isapnp.c,v 1.40 2011/06/29 12:17:40 tedu Exp $ */ 2 /* $NetBSD: isapnp.c,v 1.9.4.3 1997/10/29 00:40:43 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1996 Christos Zoulas. 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 by Christos Zoulas. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * ISA PnP bus autoconfiguration. 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 42 #include <machine/bus.h> 43 44 #include <dev/isa/isapnpreg.h> 45 46 #include <dev/isa/isavar.h> 47 #include <dev/isa/isadmavar.h> 48 49 #include <dev/isa/pnpdevs.h> 50 51 #include "isadma.h" 52 53 void isapnp_init(struct isapnp_softc *); 54 static __inline u_char isapnp_shift_bit(struct isapnp_softc *); 55 int isapnp_findcard(struct isapnp_softc *); 56 void isapnp_free_region(bus_space_tag_t, struct isapnp_region *); 57 int isapnp_alloc_region(bus_space_tag_t, struct isapnp_region *); 58 int isapnp_alloc_irq(isa_chipset_tag_t, struct isapnp_pin *); 59 int isapnp_alloc_drq(struct device *, struct isapnp_pin *); 60 int isapnp_testconfig(bus_space_tag_t, bus_space_tag_t, 61 struct isa_attach_args *, int); 62 struct isa_attach_args *isapnp_bestconfig(struct device *, 63 struct isapnp_softc *, struct isa_attach_args **); 64 void isapnp_print_region(const char *, struct isapnp_region *, 65 size_t); 66 void isapnp_configure(struct isapnp_softc *, 67 const struct isa_attach_args *); 68 void isapnp_print_pin(const char *, struct isapnp_pin *, size_t); 69 int isapnp_print(void *, const char *); 70 int isapnp_submatch(struct device *, void *, void *); 71 int isapnp_com_submatch(struct device *, void *, void *); 72 int isapnp_find(struct isapnp_softc *, int); 73 int isapnp_match(struct device *, void *, void *); 74 void isapnp_attach(struct device *, struct device *, void *); 75 76 #ifdef DEBUG_ISAPNP 77 # define DPRINTF(a) printf a 78 #else 79 # define DPRINTF(a) 80 #endif 81 82 struct cfattach isapnp_ca = { 83 sizeof(struct isapnp_softc), isapnp_match, isapnp_attach 84 }; 85 86 struct cfdriver isapnp_cd = { 87 NULL, "isapnp", DV_DULL 88 }; 89 90 91 /* isapnp_init(): 92 * Write the PNP initiation key to wake up the cards... 93 */ 94 void 95 isapnp_init(sc) 96 struct isapnp_softc *sc; 97 { 98 int i; 99 u_char v = ISAPNP_LFSR_INIT; 100 101 /* First write 0's twice to enter the Wait for Key state */ 102 ISAPNP_WRITE_ADDR(sc, 0); 103 ISAPNP_WRITE_ADDR(sc, 0); 104 105 /* Send the 32 byte sequence to awake the logic */ 106 for (i = 0; i < ISAPNP_LFSR_LENGTH; i++) { 107 ISAPNP_WRITE_ADDR(sc, v); 108 v = ISAPNP_LFSR_NEXT(v); 109 } 110 } 111 112 113 /* isapnp_shift_bit(): 114 * Read a bit at a time from the config card. 115 */ 116 static __inline u_char 117 isapnp_shift_bit(sc) 118 struct isapnp_softc *sc; 119 { 120 u_char c1, c2; 121 122 DELAY(250); 123 c1 = ISAPNP_READ_DATA(sc); 124 DELAY(250); 125 c2 = ISAPNP_READ_DATA(sc); 126 127 if (c1 == 0x55 && c2 == 0xAA) 128 return 0x80; 129 else 130 return 0; 131 } 132 133 134 /* isapnp_findcard(): 135 * Attempt to read the vendor/serial/checksum for a card 136 * If a card is found [the checksum matches], assign the 137 * next card number to it and return 1 138 */ 139 int 140 isapnp_findcard(sc) 141 struct isapnp_softc *sc; 142 { 143 u_char v = ISAPNP_LFSR_INIT, csum, w; 144 int i, b; 145 146 if (sc->sc_ncards == ISAPNP_MAX_CARDS) { 147 printf("%s: Too many pnp cards\n", sc->sc_dev.dv_xname); 148 return 0; 149 } 150 151 /* Set the read port */ 152 isapnp_write_reg(sc, ISAPNP_WAKE, 0); 153 isapnp_write_reg(sc, ISAPNP_SET_RD_PORT, sc->sc_read_port >> 2); 154 sc->sc_read_port |= 3; 155 DELAY(1000); 156 157 ISAPNP_WRITE_ADDR(sc, ISAPNP_SERIAL_ISOLATION); 158 DELAY(1000); 159 160 /* Read the 8 bytes of the Vendor ID and Serial Number */ 161 for(i = 0; i < 8; i++) { 162 /* Read each bit separately */ 163 for (w = 0, b = 0; b < 8; b++) { 164 u_char neg = isapnp_shift_bit(sc); 165 166 w >>= 1; 167 w |= neg; 168 v = ISAPNP_LFSR_NEXT(v) ^ neg; 169 } 170 sc->sc_id[sc->sc_ncards][i] = w; 171 } 172 173 /* Read the remaining checksum byte */ 174 for (csum = 0, b = 0; b < 8; b++) { 175 u_char neg = isapnp_shift_bit(sc); 176 177 csum >>= 1; 178 csum |= neg; 179 } 180 sc->sc_id[sc->sc_ncards][8] = csum; 181 182 if (csum == v) { 183 sc->sc_ncards++; 184 isapnp_write_reg(sc, ISAPNP_CARD_SELECT_NUM, sc->sc_ncards); 185 return 1; 186 } 187 return 0; 188 } 189 190 191 /* isapnp_free_region(): 192 * Free a region 193 */ 194 void 195 isapnp_free_region(t, r) 196 bus_space_tag_t t; 197 struct isapnp_region *r; 198 { 199 if (r->length == 0) 200 return; 201 202 bus_space_unmap(t, r->h, r->length); 203 r->h = 0; 204 } 205 206 207 /* isapnp_alloc_region(): 208 * Allocate a single region if possible 209 */ 210 int 211 isapnp_alloc_region(t, r) 212 bus_space_tag_t t; 213 struct isapnp_region *r; 214 { 215 int error = 0; 216 217 if (r->length == 0) 218 return 0; 219 220 r->h = 0; 221 for (r->base = r->minbase; r->base <= r->maxbase; 222 r->base += r->align) { 223 error = bus_space_map(t, r->base, r->length, 0, &r->h); 224 if (error == 0) 225 return 0; 226 } 227 return error; 228 } 229 230 231 /* isapnp_alloc_irq(): 232 * Allocate an irq 233 */ 234 int 235 isapnp_alloc_irq(ic, i) 236 isa_chipset_tag_t ic; 237 struct isapnp_pin *i; 238 { 239 int irq; 240 #define LEVEL_IRQ (ISAPNP_IRQTYPE_LEVEL_PLUS|ISAPNP_IRQTYPE_LEVEL_MINUS) 241 i->type = (i->flags & LEVEL_IRQ) ? IST_LEVEL : IST_EDGE; 242 243 if (i->bits == 0) { 244 i->num = 0; 245 return 0; 246 } 247 248 if (isa_intr_alloc(ic, i->bits, i->type, &irq) == 0) { 249 i->num = irq; 250 return 0; 251 } 252 253 return EINVAL; 254 } 255 256 /* isapnp_alloc_drq(): 257 * Allocate a drq 258 */ 259 int 260 isapnp_alloc_drq(isa, i) 261 struct device *isa; 262 struct isapnp_pin *i; 263 { 264 #if NISADMA > 0 265 int b; 266 267 if (i->bits == 0) { 268 i->num = 0; 269 return 0; 270 } 271 272 for (b = 0; b < 16; b++) 273 if ((i->bits & (1 << b)) && isa_drq_isfree(isa, b)) { 274 i->num = b; 275 return 0; 276 } 277 #endif 278 279 return EINVAL; 280 } 281 282 /* isapnp_testconfig(): 283 * Test/Allocate the regions used 284 */ 285 int 286 isapnp_testconfig(iot, memt, ipa, alloc) 287 bus_space_tag_t iot, memt; 288 struct isa_attach_args *ipa; 289 int alloc; 290 { 291 int nio = 0, nmem = 0, nmem32 = 0, nirq = 0, ndrq = 0; 292 int error = 0; 293 294 #ifdef DEBUG_ISAPNP 295 isapnp_print_attach(ipa); 296 #endif 297 298 for (; nio < ipa->ipa_nio; nio++) { 299 error = isapnp_alloc_region(iot, &ipa->ipa_io[nio]); 300 if (error) 301 goto bad; 302 } 303 304 for (; nmem < ipa->ipa_nmem; nmem++) { 305 error = isapnp_alloc_region(memt, &ipa->ipa_mem[nmem]); 306 if (error) 307 goto bad; 308 } 309 310 for (; nmem32 < ipa->ipa_nmem32; nmem32++) { 311 error = isapnp_alloc_region(memt, &ipa->ipa_mem32[nmem32]); 312 if (error) 313 goto bad; 314 } 315 316 for (; nirq < ipa->ipa_nirq; nirq++) { 317 error = isapnp_alloc_irq(ipa->ia_ic, &ipa->ipa_irq[nirq]); 318 if (error) 319 goto bad; 320 } 321 322 for (; ndrq < ipa->ipa_ndrq; ndrq++) { 323 error = isapnp_alloc_drq(ipa->ia_isa, &ipa->ipa_drq[ndrq]); 324 if (error) 325 goto bad; 326 } 327 328 if (alloc) 329 return error; 330 331 bad: 332 for (nmem32--; nmem32 >= 0; nmem32--) 333 isapnp_free_region(memt, &ipa->ipa_mem32[nmem32]); 334 335 for (nmem--; nmem >= 0; nmem--) 336 isapnp_free_region(memt, &ipa->ipa_mem[nmem]); 337 338 for (nio--; nio >= 0; nio--) 339 isapnp_free_region(iot, &ipa->ipa_io[nio]); 340 341 return error; 342 } 343 344 345 /* isapnp_config(): 346 * Test/Allocate the regions used 347 */ 348 int 349 isapnp_config(iot, memt, ipa) 350 bus_space_tag_t iot, memt; 351 struct isa_attach_args *ipa; 352 { 353 return isapnp_testconfig(iot, memt, ipa, 1); 354 } 355 356 357 /* isapnp_unconfig(): 358 * Free the regions used 359 */ 360 void 361 isapnp_unconfig(iot, memt, ipa) 362 bus_space_tag_t iot, memt; 363 struct isa_attach_args *ipa; 364 { 365 int i; 366 367 for (i = 0; i < ipa->ipa_nmem32; i++) 368 isapnp_free_region(memt, &ipa->ipa_mem32[i]); 369 370 for (i = 0; i < ipa->ipa_nmem; i++) 371 isapnp_free_region(memt, &ipa->ipa_mem[i]); 372 373 for (i = 0; i < ipa->ipa_nio; i++) 374 isapnp_free_region(iot, &ipa->ipa_io[i]); 375 } 376 377 378 /* isapnp_bestconfig(): 379 * Return the best configuration for each logical device, remove and 380 * free all other configurations. 381 */ 382 struct isa_attach_args * 383 isapnp_bestconfig(isa, sc, ipa) 384 struct device *isa; 385 struct isapnp_softc *sc; 386 struct isa_attach_args **ipa; 387 { 388 struct isa_attach_args *c, *best, *f = *ipa; 389 int error; 390 391 for (;;) { 392 if (f == NULL) 393 return NULL; 394 395 #define SAMEDEV(a, b) (strcmp((a)->ipa_devlogic, (b)->ipa_devlogic) == 0) 396 397 /* Find the best config */ 398 for (best = c = f; c != NULL; c = c->ipa_sibling) { 399 if (!SAMEDEV(c, f)) 400 continue; 401 if (c->ipa_pref < best->ipa_pref) 402 best = c; 403 } 404 405 best->ia_isa = isa; 406 /* Test the best config */ 407 error = isapnp_testconfig(sc->sc_iot, sc->sc_memt, best, 0); 408 409 /* Remove this config from the list */ 410 if (best == f) 411 f = f->ipa_sibling; 412 else { 413 for (c = f; c->ipa_sibling != best; c = c->ipa_sibling) 414 continue; 415 c->ipa_sibling = best->ipa_sibling; 416 } 417 418 if (error) { 419 best->ipa_pref = ISAPNP_DEP_CONFLICTING; 420 421 for (c = f; c != NULL; c = c->ipa_sibling) 422 if (c != best && SAMEDEV(c, best)) 423 break; 424 /* Last config for this logical device is conflicting */ 425 if (c == NULL) { 426 *ipa = f; 427 return best; 428 } 429 430 free(best, M_DEVBUF); 431 continue; 432 } 433 else { 434 /* Remove all other configs for this device */ 435 struct isa_attach_args *l = NULL, *n = NULL, *d; 436 437 for (c = f; c; ) { 438 if (c == best) 439 continue; 440 d = c->ipa_sibling; 441 if (SAMEDEV(c, best)) 442 free(c, M_DEVBUF); 443 else { 444 if (n) 445 n->ipa_sibling = c; 446 447 else 448 l = c; 449 n = c; 450 c->ipa_sibling = NULL; 451 } 452 c = d; 453 } 454 f = l; 455 } 456 *ipa = f; 457 return best; 458 } 459 } 460 461 462 /* isapnp_id_to_vendor(): 463 * Convert a pnp ``compressed ascii'' vendor id to a string 464 */ 465 char * 466 isapnp_id_to_vendor(v, id) 467 char *v; 468 const u_char *id; 469 { 470 static const char hex[] = "0123456789ABCDEF"; 471 char *p = v; 472 473 *p++ = 'A' + (id[0] >> 2) - 1; 474 *p++ = 'A' + ((id[0] & 3) << 3) + (id[1] >> 5) - 1; 475 *p++ = 'A' + (id[1] & 0x1f) - 1; 476 *p++ = hex[id[2] >> 4]; 477 *p++ = hex[id[2] & 0x0f]; 478 *p++ = hex[id[3] >> 4]; 479 *p++ = hex[id[3] & 0x0f]; 480 *p = '\0'; 481 482 return v; 483 } 484 485 486 /* isapnp_print_region(): 487 * Print a region allocation 488 */ 489 void 490 isapnp_print_region(str, r, n) 491 const char *str; 492 struct isapnp_region *r; 493 size_t n; 494 { 495 size_t i; 496 497 if (n == 0) 498 return; 499 500 printf(" %s ", str); 501 for (i = 0; i < n; i++, r++) { 502 printf("0x%x", r->base); 503 if (r->length) 504 printf("/%d", r->length); 505 if (i != n - 1) 506 printf(","); 507 } 508 } 509 510 511 /* isapnp_print_pin(): 512 * Print an irq/drq assignment 513 */ 514 void 515 isapnp_print_pin(str, p, n) 516 const char *str; 517 struct isapnp_pin *p; 518 size_t n; 519 { 520 size_t i; 521 522 if (n == 0) 523 return; 524 525 printf(" %s ", str); 526 for (i = 0; i < n; i++, p++) { 527 printf("%d", p->num); 528 if (i != n - 1) 529 printf(","); 530 } 531 } 532 533 /* isapnp_print(): 534 * Print the configuration line for an ISA PnP card. 535 */ 536 int 537 isapnp_print(aux, str) 538 void *aux; 539 const char *str; 540 { 541 struct isa_attach_args *ipa = aux; 542 543 if (!str) 544 printf(" "); 545 printf("\"%s, %s, %s, %s\"", ipa->ipa_devident, 546 ipa->ipa_devlogic, ipa->ipa_devcompat, ipa->ipa_devclass); 547 548 if (str) 549 printf(" at %s", str); 550 551 isapnp_print_region("port", ipa->ipa_io, ipa->ipa_nio); 552 isapnp_print_region("mem", ipa->ipa_mem, ipa->ipa_nmem); 553 isapnp_print_region("mem32", ipa->ipa_mem32, ipa->ipa_nmem32); 554 isapnp_print_pin("irq", ipa->ipa_irq, ipa->ipa_nirq); 555 isapnp_print_pin("drq", ipa->ipa_drq, ipa->ipa_ndrq); 556 return UNCONF; 557 } 558 559 560 /* isapnp_submatch(): 561 * Special case. 562 * A lot of com devices do not have the PNPxxx identifiers 563 * they should have. If it looks like a modem..... let's try it. 564 */ 565 int 566 isapnp_com_submatch(parent, match, aux) 567 struct device *parent; 568 void *match, *aux; 569 { 570 struct cfdata *cf = match; 571 struct isa_attach_args *ipa = aux; 572 573 if (strcmp("com", cf->cf_driver->cd_name) == 0 && 574 ipa->ipa_nio == 1 && ipa->ipa_nirq == 1 && 575 ipa->ipa_ndrq == 0 && ipa->ipa_nmem == 0 && 576 ipa->ipa_io[0].length == 8) { 577 if (isapnp_config(ipa->ia_iot, ipa->ia_memt, ipa)) { 578 printf("%s: error in region allocation\n", 579 cf->cf_driver->cd_name); 580 return (0); 581 } 582 return ((*cf->cf_attach->ca_match)(parent, match, ipa)); 583 } 584 return (0); 585 } 586 587 /* isapnp_submatch(): 588 * Probe the logical device... 589 */ 590 int 591 isapnp_submatch(parent, match, aux) 592 struct device *parent; 593 void *match, *aux; 594 { 595 struct cfdata *cf = match; 596 struct isa_attach_args *ipa = aux; 597 const char *dname; 598 int i; 599 600 for (i = 0; i < nitems(isapnp_knowndevs); i++) { 601 dname = NULL; 602 603 if (strcmp(isapnp_knowndevs[i].pnpid, ipa->ipa_devlogic) == 0) 604 dname = isapnp_knowndevs[i].driver; 605 else if (strcmp(isapnp_knowndevs[i].pnpid, ipa->ipa_devcompat) == 0) 606 dname = isapnp_knowndevs[i].driver; 607 608 if (dname && strcmp(dname, cf->cf_driver->cd_name) == 0) { 609 /* 610 * We found a match. Configure the card and call the 611 * ISA probe... 612 */ 613 if (isapnp_config(ipa->ia_iot, ipa->ia_memt, ipa)) { 614 printf("%s: error in region allocation\n", 615 cf->cf_driver->cd_name); 616 return (0); 617 } 618 619 return ((*cf->cf_attach->ca_match)(parent, match, ipa)); 620 } 621 } 622 623 return (0); 624 } 625 626 /* isapnp_find(): 627 * Probe and add cards 628 */ 629 int 630 isapnp_find(sc, all) 631 struct isapnp_softc *sc; 632 int all; 633 { 634 int p; 635 636 isapnp_init(sc); 637 638 isapnp_write_reg(sc, ISAPNP_CONFIG_CONTROL, ISAPNP_CC_RESET_DRV); 639 DELAY(2000); 640 641 isapnp_init(sc); 642 DELAY(2000); 643 644 for (p = ISAPNP_RDDATA_MIN; p <= ISAPNP_RDDATA_MAX; p += 4) { 645 sc->sc_read_port = p; 646 if (isapnp_map_readport(sc)) 647 continue; 648 DPRINTF(("%s: Trying port %x\n", sc->sc_dev.dv_xname, p)); 649 if (isapnp_findcard(sc)) 650 break; 651 isapnp_unmap_readport(sc); 652 } 653 654 if (p > ISAPNP_RDDATA_MAX) { 655 sc->sc_read_port = 0; 656 return 0; 657 } 658 659 if (all) 660 while (isapnp_findcard(sc)) 661 continue; 662 663 return 1; 664 } 665 666 667 /* isapnp_configure(): 668 * Configure a PnP card 669 * XXX: The memory configuration code is wrong. We need to check the 670 * range/length bit an do appropriate sets. 671 */ 672 void 673 isapnp_configure(sc, ipa) 674 struct isapnp_softc *sc; 675 const struct isa_attach_args *ipa; 676 { 677 int i; 678 static u_char isapnp_mem_range[] = ISAPNP_MEM_DESC; 679 static u_char isapnp_io_range[] = ISAPNP_IO_DESC; 680 static u_char isapnp_irq_range[] = ISAPNP_IRQ_DESC; 681 static u_char isapnp_drq_range[] = ISAPNP_DRQ_DESC; 682 static u_char isapnp_mem32_range[] = ISAPNP_MEM32_DESC; 683 const struct isapnp_region *r; 684 const struct isapnp_pin *p; 685 struct isapnp_region rz; 686 struct isapnp_pin pz; 687 688 bzero(&pz, sizeof(pz)); 689 bzero(&rz, sizeof(rz)); 690 691 #define B0(a) ((a) & 0xff) 692 #define B1(a) (((a) >> 8) & 0xff) 693 #define B2(a) (((a) >> 16) & 0xff) 694 #define B3(a) (((a) >> 24) & 0xff) 695 696 for (i = 0; i < sizeof(isapnp_io_range); i++) { 697 if (i < ipa->ipa_nio) 698 r = &ipa->ipa_io[i]; 699 else 700 r = &rz; 701 702 isapnp_write_reg(sc, 703 isapnp_io_range[i] + ISAPNP_IO_BASE_15_8, B1(r->base)); 704 isapnp_write_reg(sc, 705 isapnp_io_range[i] + ISAPNP_IO_BASE_7_0, B0(r->base)); 706 } 707 708 for (i = 0; i < sizeof(isapnp_mem_range); i++) { 709 if (i < ipa->ipa_nmem) 710 r = &ipa->ipa_mem[i]; 711 else 712 r = &rz; 713 714 isapnp_write_reg(sc, 715 isapnp_mem_range[i] + ISAPNP_MEM_BASE_23_16, B2(r->base)); 716 isapnp_write_reg(sc, 717 isapnp_mem_range[i] + ISAPNP_MEM_BASE_15_8, B1(r->base)); 718 719 isapnp_write_reg(sc, 720 isapnp_mem_range[i] + ISAPNP_MEM_LRANGE_23_16, 721 B2(r->length)); 722 isapnp_write_reg(sc, 723 isapnp_mem_range[i] + ISAPNP_MEM_LRANGE_15_8, 724 B1(r->length)); 725 } 726 727 for (i = 0; i < sizeof(isapnp_irq_range); i++) { 728 u_char v; 729 730 if (i < ipa->ipa_nirq) 731 p = &ipa->ipa_irq[i]; 732 else 733 p = &pz; 734 735 isapnp_write_reg(sc, 736 isapnp_irq_range[i] + ISAPNP_IRQ_NUMBER, p->num); 737 738 switch (p->flags) { 739 case ISAPNP_IRQTYPE_LEVEL_PLUS: 740 v = ISAPNP_IRQ_LEVEL|ISAPNP_IRQ_HIGH; 741 break; 742 743 case ISAPNP_IRQTYPE_EDGE_PLUS: 744 v = ISAPNP_IRQ_HIGH; 745 break; 746 747 case ISAPNP_IRQTYPE_LEVEL_MINUS: 748 v = ISAPNP_IRQ_LEVEL; 749 break; 750 751 default: 752 case ISAPNP_IRQTYPE_EDGE_MINUS: 753 v = 0; 754 break; 755 } 756 isapnp_write_reg(sc, 757 isapnp_irq_range[i] + ISAPNP_IRQ_CONTROL, v); 758 } 759 760 for (i = 0; i < sizeof(isapnp_drq_range); i++) { 761 u_char v; 762 763 if (i < ipa->ipa_ndrq) 764 v = ipa->ipa_drq[i].num; 765 else 766 v = 4; 767 768 isapnp_write_reg(sc, isapnp_drq_range[i], v); 769 } 770 771 for (i = 0; i < sizeof(isapnp_mem32_range); i++) { 772 if (i < ipa->ipa_nmem32) 773 r = &ipa->ipa_mem32[i]; 774 else 775 r = &rz; 776 777 isapnp_write_reg(sc, 778 isapnp_mem32_range[i] + ISAPNP_MEM32_BASE_31_24, 779 B3(r->base)); 780 isapnp_write_reg(sc, 781 isapnp_mem32_range[i] + ISAPNP_MEM32_BASE_23_16, 782 B2(r->base)); 783 isapnp_write_reg(sc, 784 isapnp_mem32_range[i] + ISAPNP_MEM32_BASE_15_8, 785 B1(r->base)); 786 isapnp_write_reg(sc, 787 isapnp_mem32_range[i] + ISAPNP_MEM32_BASE_7_0, 788 B0(r->base)); 789 790 isapnp_write_reg(sc, 791 isapnp_mem32_range[i] + ISAPNP_MEM32_LRANGE_31_24, 792 B3(r->length)); 793 isapnp_write_reg(sc, 794 isapnp_mem32_range[i] + ISAPNP_MEM32_LRANGE_23_16, 795 B2(r->length)); 796 isapnp_write_reg(sc, 797 isapnp_mem32_range[i] + ISAPNP_MEM32_LRANGE_15_8, 798 B1(r->length)); 799 isapnp_write_reg(sc, 800 isapnp_mem32_range[i] + ISAPNP_MEM32_LRANGE_7_0, 801 B0(r->length)); 802 } 803 } 804 805 806 /* 807 * Some BIOSes take the liberty of configuring our ISA cards for us. 808 * This code undoes the PNP card configuration. 809 */ 810 811 void 812 isapnp_isa_attach_hook(isa_sc) 813 struct isa_softc *isa_sc; 814 815 { 816 struct isapnp_softc sc; 817 818 bzero(&sc, sizeof sc); 819 sc.sc_iot = isa_sc->sc_iot; 820 sc.sc_ncards = 0; 821 822 if (isapnp_map(&sc)) 823 return; 824 825 isapnp_init(&sc); 826 827 isapnp_write_reg(&sc, ISAPNP_CONFIG_CONTROL, ISAPNP_CC_RESET_DRV); 828 DELAY(2000); 829 830 isapnp_unmap(&sc); 831 } 832 833 /* isapnp_match(): 834 * Probe routine 835 */ 836 int 837 isapnp_match(parent, match, aux) 838 struct device *parent; 839 void *match; 840 void *aux; 841 { 842 int rv; 843 struct isapnp_softc sc; 844 struct isa_attach_args *ia = aux; 845 846 sc.sc_iot = ia->ia_iot; 847 sc.sc_ncards = 0; 848 (void) strlcpy(sc.sc_dev.dv_xname, "(isapnp probe)", 849 sizeof sc.sc_dev.dv_xname); 850 851 if (isapnp_map(&sc)) 852 return 0; 853 854 rv = isapnp_find(&sc, 0); 855 ia->ia_iobase = ISAPNP_ADDR; 856 ia->ia_iosize = 1; 857 858 isapnp_unmap(&sc); 859 if (rv) 860 isapnp_unmap_readport(&sc); 861 862 return (rv); 863 } 864 865 866 /* isapnp_attach 867 * Find and attach PnP cards. 868 */ 869 void 870 isapnp_attach(parent, self, aux) 871 struct device *parent, *self; 872 void *aux; 873 { 874 struct isapnp_softc *sc = (struct isapnp_softc *) self; 875 struct isa_attach_args *ia = aux; 876 void *match; 877 int c, d; 878 879 sc->sc_iot = ia->ia_iot; 880 sc->sc_memt = ia->ia_memt; 881 #if NISADMA > 0 882 sc->sc_dmat = ia->ia_dmat; 883 #endif 884 sc->sc_ncards = 0; 885 886 if (isapnp_map(sc)) 887 panic("%s: bus map failed", sc->sc_dev.dv_xname); 888 889 if (!isapnp_find(sc, 1)) { 890 printf(": no cards found\n"); 891 return; 892 } 893 894 printf(": read port 0x%x\n", sc->sc_read_port); 895 896 for (c = 0; c < sc->sc_ncards; c++) { 897 struct isa_attach_args *ipa, *lpa; 898 899 /* Good morning card c */ 900 isapnp_write_reg(sc, ISAPNP_WAKE, c + 1); 901 902 if ((ipa = isapnp_get_resource(sc, c, ia)) == NULL) 903 continue; 904 905 DPRINTF(("Selecting attachments\n")); 906 for (d = 0; 907 (lpa = isapnp_bestconfig(parent, sc, &ipa)) != NULL; d++) { 908 isapnp_write_reg(sc, ISAPNP_LOGICAL_DEV_NUM, d); 909 isapnp_configure(sc, lpa); 910 #ifdef DEBUG_ISAPNP 911 { 912 struct isa_attach_args pa; 913 914 isapnp_get_config(sc, &pa); 915 isapnp_print_config(&pa); 916 } 917 #endif 918 919 DPRINTF(("%s: configuring <%s, %s, %s, %s>\n", 920 sc->sc_dev.dv_xname, 921 lpa->ipa_devident, lpa->ipa_devlogic, 922 lpa->ipa_devcompat, lpa->ipa_devclass)); 923 if (lpa->ipa_pref == ISAPNP_DEP_CONFLICTING) { 924 isapnp_print(lpa, self->dv_xname); 925 printf(" resource conflict\n"); 926 free(lpa, M_DEVBUF); 927 continue; 928 } 929 930 lpa->ia_ic = ia->ia_ic; 931 lpa->ia_iot = ia->ia_iot; 932 lpa->ia_memt = ia->ia_memt; 933 #if NISADMA > 0 934 lpa->ia_dmat = ia->ia_dmat; 935 #endif 936 lpa->ia_delaybah = ia->ia_delaybah; 937 938 isapnp_write_reg(sc, ISAPNP_ACTIVATE, 1); 939 940 if ((match = config_search(isapnp_submatch, 941 self, lpa))) 942 config_attach(self, match, lpa, isapnp_print); 943 else if ((match = config_search(isapnp_com_submatch, 944 self, lpa))) 945 config_attach(self, match, lpa, isapnp_print); 946 else { 947 isapnp_print(lpa, self->dv_xname); 948 printf(" not configured\n"); 949 isapnp_write_reg(sc, ISAPNP_ACTIVATE, 0); 950 } 951 free(lpa, M_DEVBUF); 952 } 953 isapnp_write_reg(sc, ISAPNP_WAKE, 0); /* Good night cards */ 954 } 955 } 956