pcmcia.c revision 1.18
1 /* $NetBSD: pcmcia.c,v 1.18 2000/02/07 09:35:29 augustss Exp $ */ 2 3 #define PCMCIADEBUG 4 5 /* 6 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Marc Horowitz. 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 #include "opt_pcmciaverbose.h" 35 36 #include <sys/types.h> 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 42 #include <dev/pcmcia/pcmciareg.h> 43 #include <dev/pcmcia/pcmciachip.h> 44 #include <dev/pcmcia/pcmciavar.h> 45 46 #include "locators.h" 47 48 #ifdef PCMCIADEBUG 49 int pcmcia_debug = 0; 50 #define DPRINTF(arg) if (pcmcia_debug) printf arg 51 int pcmciaintr_debug = 0; 52 /* this is done this way to avoid doing lots of conditionals 53 at interrupt level. */ 54 #define PCMCIA_CARD_INTR (pcmciaintr_debug?pcmcia_card_intrdebug:pcmcia_card_intr) 55 #else 56 #define DPRINTF(arg) 57 #define PCMCIA_CARD_INTR (pcmcia_card_intr) 58 #endif 59 60 #ifdef PCMCIAVERBOSE 61 int pcmcia_verbose = 1; 62 #else 63 int pcmcia_verbose = 0; 64 #endif 65 66 int pcmcia_match __P((struct device *, struct cfdata *, void *)); 67 int pcmcia_submatch __P((struct device *, struct cfdata *, void *)); 68 void pcmcia_attach __P((struct device *, struct device *, void *)); 69 int pcmcia_print __P((void *, const char *)); 70 71 static inline void pcmcia_socket_enable __P((pcmcia_chipset_tag_t, 72 pcmcia_chipset_handle_t *)); 73 static inline void pcmcia_socket_disable __P((pcmcia_chipset_tag_t, 74 pcmcia_chipset_handle_t *)); 75 76 int pcmcia_card_intr __P((void *)); 77 #ifdef PCMCIADEBUG 78 int pcmcia_card_intrdebug __P((void *)); 79 #endif 80 81 struct cfattach pcmcia_ca = { 82 sizeof(struct pcmcia_softc), pcmcia_match, pcmcia_attach 83 }; 84 85 int 86 pcmcia_ccr_read(pf, ccr) 87 struct pcmcia_function *pf; 88 int ccr; 89 { 90 91 return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, 92 pf->pf_ccr_offset + ccr)); 93 } 94 95 void 96 pcmcia_ccr_write(pf, ccr, val) 97 struct pcmcia_function *pf; 98 int ccr; 99 int val; 100 { 101 102 if ((pf->ccr_mask) & (1 << (ccr / 2))) { 103 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, 104 pf->pf_ccr_offset + ccr, val); 105 } 106 } 107 108 int 109 pcmcia_match(parent, match, aux) 110 struct device *parent; 111 struct cfdata *match; 112 void *aux; 113 { 114 struct pcmciabus_attach_args *paa = aux; 115 116 if (strcmp(paa->paa_busname, match->cf_driver->cd_name)) { 117 return 0; 118 } 119 /* if the autoconfiguration got this far, there's a socket here */ 120 return (1); 121 } 122 123 void 124 pcmcia_attach(parent, self, aux) 125 struct device *parent, *self; 126 void *aux; 127 { 128 struct pcmciabus_attach_args *paa = aux; 129 struct pcmcia_softc *sc = (struct pcmcia_softc *) self; 130 131 printf("\n"); 132 133 sc->pct = paa->pct; 134 sc->pch = paa->pch; 135 sc->iobase = paa->iobase; 136 sc->iosize = paa->iosize; 137 138 sc->ih = NULL; 139 } 140 141 int 142 pcmcia_card_attach(dev) 143 struct device *dev; 144 { 145 struct pcmcia_softc *sc = (struct pcmcia_softc *) dev; 146 struct pcmcia_function *pf; 147 struct pcmcia_attach_args paa; 148 int attached; 149 150 /* 151 * this is here so that when socket_enable calls gettype, trt happens 152 */ 153 sc->card.pf_head.sqh_first = NULL; 154 155 pcmcia_chip_socket_enable(sc->pct, sc->pch); 156 157 pcmcia_read_cis(sc); 158 159 pcmcia_chip_socket_disable(sc->pct, sc->pch); 160 161 pcmcia_check_cis_quirks(sc); 162 163 /* 164 * bail now if the card has no functions, or if there was an error in 165 * the cis. 166 */ 167 168 if (sc->card.error) 169 return (1); 170 if (sc->card.pf_head.sqh_first == NULL) 171 return (1); 172 173 if (pcmcia_verbose) 174 pcmcia_print_cis(sc); 175 176 attached = 0; 177 178 for (pf = sc->card.pf_head.sqh_first; pf != NULL; 179 pf = pf->pf_list.sqe_next) { 180 if (pf->cfe_head.sqh_first == NULL) 181 continue; 182 183 #ifdef DIAGNOSTIC 184 if (pf->child != NULL) { 185 printf("%s: %s still attached to function %d!\n", 186 sc->dev.dv_xname, pf->child->dv_xname, 187 pf->number); 188 panic("pcmcia_card_attach"); 189 } 190 #endif 191 pf->sc = sc; 192 pf->child = NULL; 193 pf->cfe = NULL; 194 pf->ih_fct = NULL; 195 pf->ih_arg = NULL; 196 } 197 198 for (pf = sc->card.pf_head.sqh_first; pf != NULL; 199 pf = pf->pf_list.sqe_next) { 200 if (pf->cfe_head.sqh_first == NULL) 201 continue; 202 203 paa.manufacturer = sc->card.manufacturer; 204 paa.product = sc->card.product; 205 paa.card = &sc->card; 206 paa.pf = pf; 207 208 if ((pf->child = config_found_sm(&sc->dev, &paa, pcmcia_print, 209 pcmcia_submatch)) != NULL) { 210 attached++; 211 212 DPRINTF(("%s: function %d CCR at %d " 213 "offset %lx: %x %x %x %x, %x %x %x %x, %x\n", 214 sc->dev.dv_xname, pf->number, 215 pf->pf_ccr_window, 216 (unsigned long) pf->pf_ccr_offset, 217 pcmcia_ccr_read(pf, 0x00), 218 pcmcia_ccr_read(pf, 0x02), pcmcia_ccr_read(pf, 0x04), 219 pcmcia_ccr_read(pf, 0x06), pcmcia_ccr_read(pf, 0x0A), 220 pcmcia_ccr_read(pf, 0x0C), pcmcia_ccr_read(pf, 0x0E), 221 pcmcia_ccr_read(pf, 0x10), pcmcia_ccr_read(pf, 0x12))); 222 } 223 } 224 225 return (attached ? 0 : 1); 226 } 227 228 void 229 pcmcia_card_detach(dev, flags) 230 struct device *dev; 231 int flags; /* DETACH_* flags */ 232 { 233 struct pcmcia_softc *sc = (struct pcmcia_softc *) dev; 234 struct pcmcia_function *pf; 235 int error; 236 237 /* 238 * We are running on either the PCMCIA socket's event thread 239 * or in user context detaching a device by user request. 240 */ 241 for (pf = SIMPLEQ_FIRST(&sc->card.pf_head); pf != NULL; 242 pf = SIMPLEQ_NEXT(pf, pf_list)) { 243 if (SIMPLEQ_FIRST(&pf->cfe_head) == NULL) 244 continue; 245 if (pf->child == NULL) 246 continue; 247 DPRINTF(("%s: detaching %s (function %d)\n", 248 sc->dev.dv_xname, pf->child->dv_xname, pf->number)); 249 if ((error = config_detach(pf->child, flags)) != 0) { 250 printf("%s: error %d detaching %s (function %d)\n", 251 sc->dev.dv_xname, error, pf->child->dv_xname, 252 pf->number); 253 } else 254 pf->child = NULL; 255 } 256 } 257 258 void 259 pcmcia_card_deactivate(dev) 260 struct device *dev; 261 { 262 struct pcmcia_softc *sc = (struct pcmcia_softc *) dev; 263 struct pcmcia_function *pf; 264 265 /* 266 * We're in the chip's card removal interrupt handler. 267 * Deactivate the child driver. The PCMCIA socket's 268 * event thread will run later to finish the detach. 269 */ 270 for (pf = SIMPLEQ_FIRST(&sc->card.pf_head); pf != NULL; 271 pf = SIMPLEQ_NEXT(pf, pf_list)) { 272 if (SIMPLEQ_FIRST(&pf->cfe_head) == NULL) 273 continue; 274 if (pf->child == NULL) 275 continue; 276 DPRINTF(("%s: deactivating %s (function %d)\n", 277 sc->dev.dv_xname, pf->child->dv_xname, pf->number)); 278 config_deactivate(pf->child); 279 } 280 } 281 282 int 283 pcmcia_submatch(parent, cf, aux) 284 struct device *parent; 285 struct cfdata *cf; 286 void *aux; 287 { 288 struct pcmcia_attach_args *paa = aux; 289 290 if (cf->cf_loc[PCMCIACF_FUNCTION] != PCMCIACF_FUNCTION_DEFAULT && 291 cf->cf_loc[PCMCIACF_FUNCTION] != paa->pf->number) 292 return (0); 293 294 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 295 } 296 297 int 298 pcmcia_print(arg, pnp) 299 void *arg; 300 const char *pnp; 301 { 302 struct pcmcia_attach_args *pa = arg; 303 struct pcmcia_softc *sc = pa->pf->sc; 304 struct pcmcia_card *card = &sc->card; 305 char devinfo[256]; 306 307 if (pnp) { 308 pcmcia_devinfo(card, 1, devinfo, sizeof devinfo); 309 printf("%s", devinfo); 310 } 311 printf(" function %d", pa->pf->number); 312 313 return (UNCONF); 314 } 315 316 void 317 pcmcia_devinfo(card, showhex, cp, cplen) 318 struct pcmcia_card *card; 319 char *cp; 320 int cplen; 321 { 322 int i, n; 323 324 for (i = 0; i < 4 && card->cis1_info[i] != NULL && cplen > 0; i++) { 325 n = snprintf(cp, cplen, "%s%s", i ? ", " : "", 326 card->cis1_info[i]); 327 cp += n; 328 cplen -= n; 329 } 330 if (showhex && cplen > 0) 331 snprintf(cp, cplen, "%s(manufacturer 0x%04x, product 0x%04x)", 332 i ? " " : "", card->manufacturer, card->product); 333 } 334 335 const struct pcmcia_product * 336 pcmcia_product_lookup(pa, tab, ent_size, matchfn) 337 struct pcmcia_attach_args *pa; 338 const struct pcmcia_product *tab; 339 size_t ent_size; 340 pcmcia_product_match_fn matchfn; 341 { 342 const struct pcmcia_product *ent; 343 int matches; 344 345 #ifdef DIAGNOSTIC 346 if (sizeof *ent > ent_size) 347 panic("pcmcia_product_lookup: bogus ent_size %ld", 348 (long) ent_size); 349 #endif 350 351 for (ent = tab; 352 ent->pp_name != NULL; 353 ent = (const struct pcmcia_product *) 354 ((const char *)ent + ent_size)) { 355 356 /* see if it matches vendor/product/function */ 357 matches = (pa->manufacturer == ent->pp_vendor) && 358 (pa->product == ent->pp_product) && 359 (pa->pf->number == ent->pp_expfunc); 360 361 /* if a separate match function is given, let it override */ 362 if (matchfn != NULL) 363 matches = (*matchfn)(pa, ent, matches); 364 365 if (matches) 366 return (ent); 367 } 368 return (NULL); 369 } 370 371 int 372 pcmcia_card_gettype(dev) 373 struct device *dev; 374 { 375 struct pcmcia_softc *sc = (struct pcmcia_softc *)dev; 376 struct pcmcia_function *pf; 377 378 /* 379 * set the iftype to memory if this card has no functions (not yet 380 * probed), or only one function, and that is not initialized yet or 381 * that is memory. 382 */ 383 pf = SIMPLEQ_FIRST(&sc->card.pf_head); 384 if (pf == NULL || 385 (SIMPLEQ_NEXT(pf, pf_list) == NULL && 386 (pf->cfe == NULL || pf->cfe->iftype == PCMCIA_IFTYPE_MEMORY))) 387 return (PCMCIA_IFTYPE_MEMORY); 388 else 389 return (PCMCIA_IFTYPE_IO); 390 } 391 392 /* 393 * Initialize a PCMCIA function. May be called as long as the function is 394 * disabled. 395 */ 396 void 397 pcmcia_function_init(pf, cfe) 398 struct pcmcia_function *pf; 399 struct pcmcia_config_entry *cfe; 400 { 401 if (pf->pf_flags & PFF_ENABLED) 402 panic("pcmcia_function_init: function is enabled"); 403 404 /* Remember which configuration entry we are using. */ 405 pf->cfe = cfe; 406 } 407 408 static inline void pcmcia_socket_enable(pct, pch) 409 pcmcia_chipset_tag_t pct; 410 pcmcia_chipset_handle_t *pch; 411 { 412 pcmcia_chip_socket_enable(pct, pch); 413 } 414 415 static inline void pcmcia_socket_disable(pct, pch) 416 pcmcia_chipset_tag_t pct; 417 pcmcia_chipset_handle_t *pch; 418 { 419 pcmcia_chip_socket_disable(pct, pch); 420 } 421 422 /* Enable a PCMCIA function */ 423 int 424 pcmcia_function_enable(pf) 425 struct pcmcia_function *pf; 426 { 427 struct pcmcia_function *tmp; 428 int reg; 429 430 if (pf->cfe == NULL) 431 panic("pcmcia_function_enable: function not initialized"); 432 433 /* 434 * Increase the reference count on the socket, enabling power, if 435 * necessary. 436 */ 437 if (pf->sc->sc_enabled_count++ == 0) 438 pcmcia_chip_socket_enable(pf->sc->pct, pf->sc->pch); 439 DPRINTF(("%s: ++enabled_count = %d\n", pf->sc->dev.dv_xname, 440 pf->sc->sc_enabled_count)); 441 442 if (pf->pf_flags & PFF_ENABLED) { 443 /* 444 * Don't do anything if we're already enabled. 445 */ 446 return (0); 447 } 448 449 /* 450 * it's possible for different functions' CCRs to be in the same 451 * underlying page. Check for that. 452 */ 453 454 for (tmp = pf->sc->card.pf_head.sqh_first; tmp != NULL; 455 tmp = tmp->pf_list.sqe_next) { 456 if ((tmp->pf_flags & PFF_ENABLED) && 457 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && 458 ((pf->ccr_base + PCMCIA_CCR_SIZE) <= 459 (tmp->ccr_base - tmp->pf_ccr_offset + 460 tmp->pf_ccr_realsize))) { 461 pf->pf_ccrt = tmp->pf_ccrt; 462 pf->pf_ccrh = tmp->pf_ccrh; 463 pf->pf_ccr_realsize = tmp->pf_ccr_realsize; 464 465 /* 466 * pf->pf_ccr_offset = (tmp->pf_ccr_offset - 467 * tmp->ccr_base) + pf->ccr_base; 468 */ 469 pf->pf_ccr_offset = 470 (tmp->pf_ccr_offset + pf->ccr_base) - 471 tmp->ccr_base; 472 pf->pf_ccr_window = tmp->pf_ccr_window; 473 break; 474 } 475 } 476 477 if (tmp == NULL) { 478 if (pcmcia_mem_alloc(pf, PCMCIA_CCR_SIZE, &pf->pf_pcmh)) 479 goto bad; 480 481 if (pcmcia_mem_map(pf, PCMCIA_MEM_ATTR, pf->ccr_base, 482 PCMCIA_CCR_SIZE, &pf->pf_pcmh, &pf->pf_ccr_offset, 483 &pf->pf_ccr_window)) { 484 pcmcia_mem_free(pf, &pf->pf_pcmh); 485 goto bad; 486 } 487 } 488 489 reg = (pf->cfe->number & PCMCIA_CCR_OPTION_CFINDEX); 490 reg |= PCMCIA_CCR_OPTION_LEVIREQ; 491 if (pcmcia_mfc(pf->sc)) { 492 reg |= (PCMCIA_CCR_OPTION_FUNC_ENABLE | 493 PCMCIA_CCR_OPTION_ADDR_DECODE); 494 if (pf->ih_fct) 495 reg |= PCMCIA_CCR_OPTION_IREQ_ENABLE; 496 497 } 498 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 499 500 reg = 0; 501 502 if ((pf->cfe->flags & PCMCIA_CFE_IO16) == 0) 503 reg |= PCMCIA_CCR_STATUS_IOIS8; 504 if (pf->cfe->flags & PCMCIA_CFE_AUDIO) 505 reg |= PCMCIA_CCR_STATUS_AUDIO; 506 pcmcia_ccr_write(pf, PCMCIA_CCR_STATUS, reg); 507 508 pcmcia_ccr_write(pf, PCMCIA_CCR_SOCKETCOPY, 0); 509 510 if (pcmcia_mfc(pf->sc)) { 511 long tmp, iosize; 512 513 tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase; 514 /* round up to nearest (2^n)-1 */ 515 for (iosize = 1; iosize < tmp; iosize <<= 1) 516 ; 517 iosize--; 518 519 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE0, 520 pf->pf_mfc_iobase & 0xff); 521 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE1, 522 (pf->pf_mfc_iobase >> 8) & 0xff); 523 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE2, 0); 524 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE3, 0); 525 526 pcmcia_ccr_write(pf, PCMCIA_CCR_IOSIZE, iosize); 527 } 528 529 #ifdef PCMCIADEBUG 530 if (pcmcia_debug) { 531 for (tmp = pf->sc->card.pf_head.sqh_first; tmp != NULL; 532 tmp = tmp->pf_list.sqe_next) { 533 printf("%s: function %d CCR at %d offset %lx: " 534 "%x %x %x %x, %x %x %x %x, %x\n", 535 tmp->sc->dev.dv_xname, tmp->number, 536 tmp->pf_ccr_window, 537 (unsigned long) tmp->pf_ccr_offset, 538 pcmcia_ccr_read(tmp, 0x00), 539 pcmcia_ccr_read(tmp, 0x02), 540 pcmcia_ccr_read(tmp, 0x04), 541 pcmcia_ccr_read(tmp, 0x06), 542 543 pcmcia_ccr_read(tmp, 0x0A), 544 pcmcia_ccr_read(tmp, 0x0C), 545 pcmcia_ccr_read(tmp, 0x0E), 546 pcmcia_ccr_read(tmp, 0x10), 547 548 pcmcia_ccr_read(tmp, 0x12)); 549 } 550 } 551 #endif 552 553 pf->pf_flags |= PFF_ENABLED; 554 return (0); 555 556 bad: 557 /* 558 * Decrement the reference count, and power down the socket, if 559 * necessary. 560 */ 561 if (--pf->sc->sc_enabled_count == 0) 562 pcmcia_chip_socket_disable(pf->sc->pct, pf->sc->pch); 563 DPRINTF(("%s: --enabled_count = %d\n", pf->sc->dev.dv_xname, 564 pf->sc->sc_enabled_count)); 565 566 return (1); 567 } 568 569 /* Disable PCMCIA function. */ 570 void 571 pcmcia_function_disable(pf) 572 struct pcmcia_function *pf; 573 { 574 struct pcmcia_function *tmp; 575 576 if (pf->cfe == NULL) 577 panic("pcmcia_function_enable: function not initialized"); 578 579 if ((pf->pf_flags & PFF_ENABLED) == 0) { 580 /* 581 * Don't do anything if we're already disabled. 582 */ 583 return; 584 } 585 586 /* 587 * it's possible for different functions' CCRs to be in the same 588 * underlying page. Check for that. Note we mark us as disabled 589 * first to avoid matching ourself. 590 */ 591 592 pf->pf_flags &= ~PFF_ENABLED; 593 for (tmp = pf->sc->card.pf_head.sqh_first; tmp != NULL; 594 tmp = tmp->pf_list.sqe_next) { 595 if ((tmp->pf_flags & PFF_ENABLED) && 596 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && 597 ((pf->ccr_base + PCMCIA_CCR_SIZE) <= 598 (tmp->ccr_base - tmp->pf_ccr_offset + tmp->pf_ccr_realsize))) 599 break; 600 } 601 602 /* Not used by anyone else; unmap the CCR. */ 603 if (tmp == NULL) { 604 pcmcia_mem_unmap(pf, pf->pf_ccr_window); 605 pcmcia_mem_free(pf, &pf->pf_pcmh); 606 } 607 608 /* 609 * Decrement the reference count, and power down the socket, if 610 * necessary. 611 */ 612 if (--pf->sc->sc_enabled_count == 0) 613 pcmcia_chip_socket_disable(pf->sc->pct, pf->sc->pch); 614 DPRINTF(("%s: --enabled_count = %d\n", pf->sc->dev.dv_xname, 615 pf->sc->sc_enabled_count)); 616 } 617 618 int 619 pcmcia_io_map(pf, width, offset, size, pcihp, windowp) 620 struct pcmcia_function *pf; 621 int width; 622 bus_addr_t offset; 623 bus_size_t size; 624 struct pcmcia_io_handle *pcihp; 625 int *windowp; 626 { 627 int reg; 628 629 if (pcmcia_chip_io_map(pf->sc->pct, pf->sc->pch, 630 width, offset, size, pcihp, windowp)) 631 return (1); 632 633 /* 634 * XXX in the multifunction multi-iospace-per-function case, this 635 * needs to cooperate with io_alloc to make sure that the spaces 636 * don't overlap, and that the ccr's are set correctly 637 */ 638 639 if (pcmcia_mfc(pf->sc)) { 640 long tmp, iosize; 641 642 if (pf->pf_mfc_iomax == 0) { 643 pf->pf_mfc_iobase = pcihp->addr + offset; 644 pf->pf_mfc_iomax = pf->pf_mfc_iobase + size; 645 } else { 646 /* this makes the assumption that nothing overlaps */ 647 if (pf->pf_mfc_iobase > pcihp->addr + offset) 648 pf->pf_mfc_iobase = pcihp->addr + offset; 649 if (pf->pf_mfc_iomax < pcihp->addr + offset + size) 650 pf->pf_mfc_iomax = pcihp->addr + offset + size; 651 } 652 653 tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase; 654 /* round up to nearest (2^n)-1 */ 655 for (iosize = 1; iosize >= tmp; iosize <<= 1) 656 ; 657 iosize--; 658 659 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE0, 660 pf->pf_mfc_iobase & 0xff); 661 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE1, 662 (pf->pf_mfc_iobase >> 8) & 0xff); 663 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE2, 0); 664 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE3, 0); 665 666 pcmcia_ccr_write(pf, PCMCIA_CCR_IOSIZE, iosize); 667 668 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 669 reg |= PCMCIA_CCR_OPTION_ADDR_DECODE; 670 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 671 } 672 return (0); 673 } 674 675 void 676 pcmcia_io_unmap(pf, window) 677 struct pcmcia_function *pf; 678 int window; 679 { 680 681 pcmcia_chip_io_unmap(pf->sc->pct, pf->sc->pch, window); 682 683 /* XXX Anything for multi-function cards? */ 684 } 685 686 void * 687 pcmcia_intr_establish(pf, ipl, ih_fct, ih_arg) 688 struct pcmcia_function *pf; 689 int ipl; 690 int (*ih_fct) __P((void *)); 691 void *ih_arg; 692 { 693 void *ret; 694 695 /* behave differently if this is a multifunction card */ 696 697 if (pcmcia_mfc(pf->sc)) { 698 int s, ihcnt, hiipl, reg; 699 struct pcmcia_function *pf2; 700 701 /* 702 * mask all the ipl's which are already used by this card, 703 * and find the highest ipl number (lowest priority) 704 */ 705 706 ihcnt = 0; 707 s = 0; /* this is only here to keep the compiler 708 happy */ 709 hiipl = 0; /* this is only here to keep the compiler 710 happy */ 711 712 for (pf2 = pf->sc->card.pf_head.sqh_first; pf2 != NULL; 713 pf2 = pf2->pf_list.sqe_next) { 714 if (pf2->ih_fct) { 715 DPRINTF(("%s: function %d has ih_fct %p\n", 716 pf->sc->dev.dv_xname, pf2->number, 717 pf2->ih_fct)); 718 719 if (ihcnt == 0) { 720 hiipl = pf2->ih_ipl; 721 } else { 722 if (pf2->ih_ipl > hiipl) 723 hiipl = pf2->ih_ipl; 724 } 725 726 ihcnt++; 727 } 728 } 729 730 /* 731 * establish the real interrupt, changing the ipl if 732 * necessary 733 */ 734 735 if (ihcnt == 0) { 736 #ifdef DIAGNOSTIC 737 if (pf->sc->ih != NULL) 738 panic("card has intr handler, but no function does"); 739 #endif 740 s = splhigh(); 741 742 /* set up the handler for the new function */ 743 744 pf->ih_fct = ih_fct; 745 pf->ih_arg = ih_arg; 746 pf->ih_ipl = ipl; 747 748 pf->sc->ih = pcmcia_chip_intr_establish(pf->sc->pct, 749 pf->sc->pch, pf, ipl, PCMCIA_CARD_INTR, pf->sc); 750 splx(s); 751 } else if (ipl > hiipl) { 752 #ifdef DIAGNOSTIC 753 if (pf->sc->ih == NULL) 754 panic("functions have ih, but the card does not"); 755 #endif 756 757 /* XXX need #ifdef for splserial on x86 */ 758 s = splhigh(); 759 760 pcmcia_chip_intr_disestablish(pf->sc->pct, pf->sc->pch, 761 pf->sc->ih); 762 763 /* set up the handler for the new function */ 764 pf->ih_fct = ih_fct; 765 pf->ih_arg = ih_arg; 766 pf->ih_ipl = ipl; 767 768 pf->sc->ih = pcmcia_chip_intr_establish(pf->sc->pct, 769 pf->sc->pch, pf, ipl, PCMCIA_CARD_INTR, pf->sc); 770 771 splx(s); 772 } else { 773 s = splhigh(); 774 775 /* set up the handler for the new function */ 776 777 pf->ih_fct = ih_fct; 778 pf->ih_arg = ih_arg; 779 pf->ih_ipl = ipl; 780 781 splx(s); 782 } 783 784 ret = pf->sc->ih; 785 786 if (ret != NULL) { 787 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 788 reg |= PCMCIA_CCR_OPTION_IREQ_ENABLE; 789 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 790 791 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_STATUS); 792 reg |= PCMCIA_CCR_STATUS_INTRACK; 793 pcmcia_ccr_write(pf, PCMCIA_CCR_STATUS, reg); 794 } 795 } else { 796 ret = pcmcia_chip_intr_establish(pf->sc->pct, pf->sc->pch, 797 pf, ipl, ih_fct, ih_arg); 798 } 799 800 return (ret); 801 } 802 803 void 804 pcmcia_intr_disestablish(pf, ih) 805 struct pcmcia_function *pf; 806 void *ih; 807 { 808 /* behave differently if this is a multifunction card */ 809 810 if (pcmcia_mfc(pf->sc)) { 811 int s, ihcnt, hiipl; 812 struct pcmcia_function *pf2; 813 814 /* 815 * mask all the ipl's which are already used by this card, 816 * and find the highest ipl number (lowest priority). Skip 817 * the current function. 818 */ 819 820 ihcnt = 0; 821 s = 0; /* this is only here to keep the compipler 822 happy */ 823 hiipl = 0; /* this is only here to keep the compipler 824 happy */ 825 826 for (pf2 = pf->sc->card.pf_head.sqh_first; pf2 != NULL; 827 pf2 = pf2->pf_list.sqe_next) { 828 if (pf2 == pf) 829 continue; 830 831 if (pf2->ih_fct) { 832 if (ihcnt == 0) { 833 hiipl = pf2->ih_ipl; 834 } else { 835 if (pf2->ih_ipl > hiipl) 836 hiipl = pf2->ih_ipl; 837 } 838 ihcnt++; 839 } 840 } 841 842 /* 843 * if the ih being removed is lower priority than the lowest 844 * priority remaining interrupt, up the priority. 845 */ 846 847 /* ihcnt is the number of interrupt handlers *not* including 848 the one about to be removed. */ 849 850 if (ihcnt == 0) { 851 int reg; 852 853 #ifdef DIAGNOSTIC 854 if (pf->sc->ih == NULL) 855 panic("disestablishing last function, but card has no ih"); 856 #endif 857 pcmcia_chip_intr_disestablish(pf->sc->pct, pf->sc->pch, 858 pf->sc->ih); 859 860 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 861 reg &= ~PCMCIA_CCR_OPTION_IREQ_ENABLE; 862 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 863 864 pf->ih_fct = NULL; 865 pf->ih_arg = NULL; 866 867 pf->sc->ih = NULL; 868 } else if (pf->ih_ipl > hiipl) { 869 #ifdef DIAGNOSTIC 870 if (pf->sc->ih == NULL) 871 panic("changing ih ipl, but card has no ih"); 872 #endif 873 /* XXX need #ifdef for splserial on x86 */ 874 s = splhigh(); 875 876 pcmcia_chip_intr_disestablish(pf->sc->pct, pf->sc->pch, 877 pf->sc->ih); 878 pf->sc->ih = pcmcia_chip_intr_establish(pf->sc->pct, 879 pf->sc->pch, pf, hiipl, PCMCIA_CARD_INTR, pf->sc); 880 881 /* null out the handler for this function */ 882 883 pf->ih_fct = NULL; 884 pf->ih_arg = NULL; 885 886 splx(s); 887 } else { 888 s = splhigh(); 889 890 pf->ih_fct = NULL; 891 pf->ih_arg = NULL; 892 893 splx(s); 894 } 895 } else { 896 pcmcia_chip_intr_disestablish(pf->sc->pct, pf->sc->pch, ih); 897 } 898 } 899 900 int 901 pcmcia_card_intr(arg) 902 void *arg; 903 { 904 struct pcmcia_softc *sc = arg; 905 struct pcmcia_function *pf; 906 int reg, ret, ret2; 907 908 ret = 0; 909 910 for (pf = sc->card.pf_head.sqh_first; pf != NULL; 911 pf = pf->pf_list.sqe_next) { 912 if (pf->ih_fct != NULL && 913 (pf->ccr_mask & (1 << (PCMCIA_CCR_STATUS / 2)))) { 914 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_STATUS); 915 if (reg & PCMCIA_CCR_STATUS_INTR) { 916 ret2 = (*pf->ih_fct)(pf->ih_arg); 917 if (ret2 != 0 && ret == 0) 918 ret = ret2; 919 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_STATUS); 920 pcmcia_ccr_write(pf, PCMCIA_CCR_STATUS, 921 reg & ~PCMCIA_CCR_STATUS_INTR); 922 } 923 } 924 } 925 926 return (ret); 927 } 928 929 #ifdef PCMCIADEBUG 930 int 931 pcmcia_card_intrdebug(arg) 932 void *arg; 933 { 934 struct pcmcia_softc *sc = arg; 935 struct pcmcia_function *pf; 936 int reg, ret, ret2; 937 938 ret = 0; 939 940 for (pf = sc->card.pf_head.sqh_first; pf != NULL; 941 pf = pf->pf_list.sqe_next) { 942 printf("%s: intr flags=%x fct=%d cor=%02x csr=%02x pin=%02x", 943 sc->dev.dv_xname, pf->pf_flags, pf->number, 944 pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION), 945 pcmcia_ccr_read(pf, PCMCIA_CCR_STATUS), 946 pcmcia_ccr_read(pf, PCMCIA_CCR_PIN)); 947 if (pf->ih_fct != NULL && 948 (pf->ccr_mask & (1 << (PCMCIA_CCR_STATUS / 2)))) { 949 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_STATUS); 950 if (reg & PCMCIA_CCR_STATUS_INTR) { 951 ret2 = (*pf->ih_fct)(pf->ih_arg); 952 if (ret2 != 0 && ret == 0) 953 ret = ret2; 954 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_STATUS); 955 printf("; csr %02x->%02x", 956 reg, reg & ~PCMCIA_CCR_STATUS_INTR); 957 pcmcia_ccr_write(pf, PCMCIA_CCR_STATUS, 958 reg & ~PCMCIA_CCR_STATUS_INTR); 959 } 960 } 961 printf("\n"); 962 } 963 964 return (ret); 965 } 966 #endif 967
Indexes created Fri Sep 26 20:09:58 GMT 2025