pcmcia.c revision 1.74
1 /* $NetBSD: pcmcia.c,v 1.74 2005/08/15 18:58:24 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2004 Charles M. Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles M. Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 */ 20 21 /* 22 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 23 * 24 * Redistribution and use in source and binary forms, with or without 25 * modification, are permitted provided that the following conditions 26 * are met: 27 * 1. Redistributions of source code must retain the above copyright 28 * notice, this list of conditions and the following disclaimer. 29 * 2. Redistributions in binary form must reproduce the above copyright 30 * notice, this list of conditions and the following disclaimer in the 31 * documentation and/or other materials provided with the distribution. 32 * 3. All advertising materials mentioning features or use of this software 33 * must display the following acknowledgement: 34 * This product includes software developed by Marc Horowitz. 35 * 4. The name of the author may not be used to endorse or promote products 36 * derived from this software without specific prior written permission. 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 39 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 40 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 41 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 42 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 43 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 44 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 45 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 47 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 48 */ 49 50 #include <sys/cdefs.h> 51 __KERNEL_RCSID(0, "$NetBSD: pcmcia.c,v 1.74 2005/08/15 18:58:24 christos Exp $"); 52 53 #include "opt_pcmciaverbose.h" 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/device.h> 58 59 #include <dev/pcmcia/pcmciareg.h> 60 #include <dev/pcmcia/pcmciachip.h> 61 #include <dev/pcmcia/pcmciavar.h> 62 #ifdef IT8368E_LEGACY_MODE /* XXX -uch */ 63 #include <arch/hpcmips/dev/it8368var.h> 64 #endif 65 66 #include "locators.h" 67 68 #ifdef PCMCIADEBUG 69 int pcmcia_debug = 0; 70 #define DPRINTF(arg) if (pcmcia_debug) printf arg 71 #else 72 #define DPRINTF(arg) 73 #endif 74 75 #ifdef PCMCIAVERBOSE 76 int pcmcia_verbose = 1; 77 #else 78 int pcmcia_verbose = 0; 79 #endif 80 81 int pcmcia_match(struct device *, struct cfdata *, void *); 82 int pcmcia_submatch(struct device *, struct cfdata *, 83 const locdesc_t *, void *); 84 void pcmcia_attach(struct device *, struct device *, void *); 85 int pcmcia_rescan(struct device *, const char *, const int *); 86 void pcmcia_childdetached(struct device *, struct device *); 87 int pcmcia_print(void *, const char *); 88 89 CFATTACH_DECL2(pcmcia, sizeof(struct pcmcia_softc), 90 pcmcia_match, pcmcia_attach, NULL, NULL, 91 pcmcia_rescan, pcmcia_childdetached); 92 93 int 94 pcmcia_ccr_read(pf, ccr) 95 struct pcmcia_function *pf; 96 int ccr; 97 { 98 99 return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, 100 pf->pf_ccr_offset + ccr * 2)); 101 } 102 103 void 104 pcmcia_ccr_write(pf, ccr, val) 105 struct pcmcia_function *pf; 106 int ccr; 107 int val; 108 { 109 110 if (pf->ccr_mask & (1 << ccr)) { 111 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, 112 pf->pf_ccr_offset + ccr * 2, val); 113 } 114 } 115 116 int 117 pcmcia_match(parent, match, aux) 118 struct device *parent; 119 struct cfdata *match; 120 void *aux; 121 { 122 struct pcmciabus_attach_args *paa = aux; 123 124 if (strcmp(paa->paa_busname, match->cf_name)) { 125 return 0; 126 } 127 /* if the autoconfiguration got this far, there's a socket here */ 128 return (1); 129 } 130 131 void 132 pcmcia_attach(parent, self, aux) 133 struct device *parent, *self; 134 void *aux; 135 { 136 struct pcmciabus_attach_args *paa = aux; 137 struct pcmcia_softc *sc = (struct pcmcia_softc *) self; 138 139 printf("\n"); 140 141 sc->pct = paa->pct; 142 sc->pch = paa->pch; 143 sc->iobase = paa->iobase; 144 sc->iosize = paa->iosize; 145 146 sc->ih = NULL; 147 } 148 149 int 150 pcmcia_card_attach(dev) 151 struct device *dev; 152 { 153 struct pcmcia_softc *sc = (struct pcmcia_softc *) dev; 154 struct pcmcia_function *pf; 155 int error; 156 static const int wildcard[2] = { 157 PCMCIACF_FUNCTION_DEFAULT, PCMCIACF_IRQ_DEFAULT 158 }; 159 160 /* 161 * this is here so that when socket_enable calls gettype, trt happens 162 */ 163 SIMPLEQ_FIRST(&sc->card.pf_head) = NULL; 164 165 pcmcia_socket_enable(dev); 166 167 pcmcia_read_cis(sc); 168 pcmcia_check_cis_quirks(sc); 169 170 #if 1 /* XXX remove this, done below ??? */ 171 /* 172 * bail now if the card has no functions, or if there was an error in 173 * the cis. 174 */ 175 if (sc->card.error || 176 SIMPLEQ_EMPTY(&sc->card.pf_head)) { 177 printf("%s: card appears to have bogus CIS\n", 178 sc->dev.dv_xname); 179 error = EIO; 180 goto done; 181 } 182 #endif 183 184 if (pcmcia_verbose) 185 pcmcia_print_cis(sc); 186 187 SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 188 if (SIMPLEQ_EMPTY(&pf->cfe_head)) 189 continue; 190 191 #ifdef DIAGNOSTIC 192 if (pf->child != NULL) { 193 printf("%s: %s still attached to function %d!\n", 194 sc->dev.dv_xname, pf->child->dv_xname, 195 pf->number); 196 panic("pcmcia_card_attach"); 197 } 198 #endif 199 pf->sc = sc; 200 pf->child = NULL; 201 pf->cfe = NULL; 202 pf->pf_ih = NULL; 203 } 204 205 error = pcmcia_rescan(dev, "pcmcia", wildcard); 206 done: 207 pcmcia_socket_disable(dev); 208 return (error); 209 } 210 211 int 212 pcmcia_rescan(struct device *self, const char *ifattr, const int *locators) 213 { 214 struct pcmcia_softc *sc = (struct pcmcia_softc *)self; 215 struct pcmcia_function *pf; 216 struct pcmcia_attach_args paa; 217 int help[3]; 218 locdesc_t *ldesc = (void *)&help; /* XXX */ 219 220 if (sc->card.error || 221 SIMPLEQ_EMPTY(&sc->card.pf_head)) { 222 /* XXX silently ignore if no card present? */ 223 return (EIO); 224 } 225 226 SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 227 if (SIMPLEQ_EMPTY(&pf->cfe_head)) 228 continue; 229 230 if ((locators[PCMCIACF_FUNCTION] != PCMCIACF_FUNCTION_DEFAULT) 231 && (locators[PCMCIACF_FUNCTION] != pf->number)) 232 continue; 233 234 if (pf->child) 235 continue; 236 237 ldesc->len = 2; 238 ldesc->locs[PCMCIACF_FUNCTION] = pf->number; 239 ldesc->locs[PCMCIACF_IRQ] = PCMCIACF_IRQ_DEFAULT; 240 241 paa.manufacturer = sc->card.manufacturer; 242 paa.product = sc->card.product; 243 paa.card = &sc->card; 244 paa.pf = pf; 245 246 pf->child = config_found_sm_loc(self, "pcmcia", ldesc, &paa, 247 pcmcia_print, pcmcia_submatch); 248 } 249 250 return (0); 251 } 252 253 void 254 pcmcia_card_detach(dev, flags) 255 struct device *dev; 256 int flags; /* DETACH_* flags */ 257 { 258 struct pcmcia_softc *sc = (struct pcmcia_softc *) dev; 259 struct pcmcia_function *pf; 260 int error; 261 262 /* 263 * We are running on either the PCMCIA socket's event thread 264 * or in user context detaching a device by user request. 265 */ 266 SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 267 pf->pf_flags |= PFF_DETACHED; 268 if (SIMPLEQ_EMPTY(&pf->cfe_head)) 269 continue; 270 if (pf->child == NULL) 271 continue; 272 DPRINTF(("%s: detaching %s (function %d)\n", 273 sc->dev.dv_xname, pf->child->dv_xname, pf->number)); 274 if ((error = config_detach(pf->child, flags)) != 0) { 275 printf("%s: error %d detaching %s (function %d)\n", 276 sc->dev.dv_xname, error, pf->child->dv_xname, 277 pf->number); 278 } 279 } 280 281 if (sc->sc_enabled_count != 0) { 282 #ifdef DIAGNOSTIC 283 printf("pcmcia_card_detach: enabled_count should be 0 here??\n"); 284 #endif 285 pcmcia_chip_socket_disable(sc->pct, sc->pch); 286 sc->sc_enabled_count = 0; 287 } 288 } 289 290 void 291 pcmcia_childdetached(struct device *self, struct device *child) 292 { 293 struct pcmcia_softc *sc = (struct pcmcia_softc *)self; 294 struct pcmcia_function *pf; 295 296 SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 297 if (SIMPLEQ_EMPTY(&pf->cfe_head)) 298 continue; 299 if (pf->child == child) { 300 KASSERT(child->dv_locators[PCMCIACF_FUNCTION] 301 == pf->number); 302 pf->child = NULL; 303 return; 304 } 305 } 306 307 printf("%s: pcmcia_childdetached: %s not found\n", 308 self->dv_xname, child->dv_xname); 309 } 310 311 void 312 pcmcia_card_deactivate(dev) 313 struct device *dev; 314 { 315 struct pcmcia_softc *sc = (struct pcmcia_softc *) dev; 316 struct pcmcia_function *pf; 317 318 /* 319 * We're in the chip's card removal interrupt handler. 320 * Deactivate the child driver. The PCMCIA socket's 321 * event thread will run later to finish the detach. 322 */ 323 SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 324 if (SIMPLEQ_EMPTY(&pf->cfe_head)) 325 continue; 326 if (pf->child == NULL) 327 continue; 328 DPRINTF(("%s: deactivating %s (function %d)\n", 329 sc->dev.dv_xname, pf->child->dv_xname, pf->number)); 330 config_deactivate(pf->child); 331 } 332 } 333 334 int 335 pcmcia_submatch(parent, cf, ldesc, aux) 336 struct device *parent; 337 const locdesc_t *ldesc; 338 struct cfdata *cf; 339 void *aux; 340 { 341 342 if (cf->cf_loc[PCMCIACF_FUNCTION] != PCMCIACF_FUNCTION_DEFAULT && 343 cf->cf_loc[PCMCIACF_FUNCTION] != ldesc->locs[PCMCIACF_FUNCTION]) 344 return (0); 345 346 return (config_match(parent, cf, aux)); 347 } 348 349 int 350 pcmcia_print(arg, pnp) 351 void *arg; 352 const char *pnp; 353 { 354 struct pcmcia_attach_args *pa = arg; 355 struct pcmcia_softc *sc = pa->pf->sc; 356 struct pcmcia_card *card = &sc->card; 357 char devinfo[256]; 358 359 if (pnp) 360 aprint_normal("%s", pnp); 361 362 pcmcia_devinfo(card, !!pnp, devinfo, sizeof(devinfo)); 363 364 aprint_normal(" function %d: %s\n", pa->pf->number, devinfo); 365 366 return (UNCONF); 367 } 368 369 void 370 pcmcia_devinfo(card, showhex, cp, cplen) 371 struct pcmcia_card *card; 372 int showhex; 373 char *cp; 374 size_t cplen; 375 { 376 int i, n; 377 378 if (cplen > 1) { 379 *cp++ = '<'; 380 *cp = '\0'; 381 cplen--; 382 } 383 384 for (i = 0; i < 4 && card->cis1_info[i] != NULL && cplen > 1; i++) { 385 n = snprintf(cp, cplen, "%s%s", i ? ", " : "", 386 card->cis1_info[i]); 387 cp += n; 388 if (cplen < n) 389 return; 390 cplen -= n; 391 } 392 393 if (cplen > 1) { 394 *cp++ = '>'; 395 *cp = '\0'; 396 cplen--; 397 } 398 399 if (showhex && cplen > 1) 400 snprintf(cp, cplen, " (manufacturer 0x%04x, product 0x%04x)", 401 card->manufacturer, card->product); 402 } 403 404 const void * 405 pcmcia_product_lookup(pa, tab, nent, ent_size, matchfn) 406 struct pcmcia_attach_args *pa; 407 const void *tab; 408 size_t nent; 409 size_t ent_size; 410 pcmcia_product_match_fn matchfn; 411 { 412 const struct pcmcia_product *pp; 413 int n; 414 int matches; 415 416 #ifdef DIAGNOSTIC 417 if (sizeof *pp > ent_size) 418 panic("pcmcia_product_lookup: bogus ent_size %ld", 419 (long) ent_size); 420 #endif 421 422 for (pp = tab, n = nent; n; pp = (const struct pcmcia_product *) 423 ((const char *)pp + ent_size), n--) { 424 /* see if it matches vendor/product */ 425 matches = 0; 426 if ((pp->pp_vendor != PCMCIA_VENDOR_INVALID && 427 pp->pp_vendor == pa->manufacturer) && 428 (pp->pp_product != PCMCIA_PRODUCT_INVALID && 429 pp->pp_product == pa->product)) 430 matches = 1; 431 if ((pp->pp_cisinfo[0] && pa->card->cis1_info[0] && 432 !strcmp(pp->pp_cisinfo[0], pa->card->cis1_info[0])) && 433 (pp->pp_cisinfo[1] && pa->card->cis1_info[1] && 434 !strcmp(pp->pp_cisinfo[1], pa->card->cis1_info[1])) && 435 (!pp->pp_cisinfo[2] || (pa->card->cis1_info[2] && 436 !strcmp(pp->pp_cisinfo[2], pa->card->cis1_info[2]))) && 437 (!pp->pp_cisinfo[3] || (pa->card->cis1_info[3] && 438 !strcmp(pp->pp_cisinfo[3], pa->card->cis1_info[3])))) 439 matches = 1; 440 441 /* if a separate match function is given, let it override */ 442 if (matchfn) 443 matches = (*matchfn)(pa, pp, matches); 444 445 if (matches) 446 return (pp); 447 } 448 return (0); 449 } 450 451 void 452 pcmcia_socket_settype(dev, type) 453 struct device *dev; 454 int type; 455 { 456 struct pcmcia_softc *sc = (void *)dev; 457 458 pcmcia_chip_socket_settype(sc->pct, sc->pch, type); 459 } 460 461 /* 462 * Initialize a PCMCIA function. May be called as long as the function is 463 * disabled. 464 */ 465 void 466 pcmcia_function_init(pf, cfe) 467 struct pcmcia_function *pf; 468 struct pcmcia_config_entry *cfe; 469 { 470 if (pf->pf_flags & PFF_ENABLED) 471 panic("pcmcia_function_init: function is enabled"); 472 473 /* Remember which configuration entry we are using. */ 474 pf->cfe = cfe; 475 } 476 477 void 478 pcmcia_socket_enable(dev) 479 struct device *dev; 480 { 481 struct pcmcia_softc *sc = (void *)dev; 482 483 if (sc->sc_enabled_count++ == 0) 484 pcmcia_chip_socket_enable(sc->pct, sc->pch); 485 DPRINTF(("%s: ++enabled_count = %d\n", sc->dev.dv_xname, 486 sc->sc_enabled_count)); 487 } 488 489 void 490 pcmcia_socket_disable(dev) 491 struct device *dev; 492 { 493 struct pcmcia_softc *sc = (void *)dev; 494 495 if (--sc->sc_enabled_count == 0) 496 pcmcia_chip_socket_disable(sc->pct, sc->pch); 497 DPRINTF(("%s: --enabled_count = %d\n", sc->dev.dv_xname, 498 sc->sc_enabled_count)); 499 } 500 501 /* Enable a PCMCIA function */ 502 int 503 pcmcia_function_enable(pf) 504 struct pcmcia_function *pf; 505 { 506 struct pcmcia_softc *sc = pf->sc; 507 struct pcmcia_function *tmp; 508 int reg; 509 int error; 510 511 if (pf->cfe == NULL) 512 panic("pcmcia_function_enable: function not initialized"); 513 514 /* 515 * Increase the reference count on the socket, enabling power, if 516 * necessary. 517 */ 518 pcmcia_socket_enable(&sc->dev); 519 pcmcia_socket_settype(&sc->dev, pf->cfe->iftype); 520 521 if (pf->pf_flags & PFF_ENABLED) { 522 /* 523 * Don't do anything if we're already enabled. 524 */ 525 return (0); 526 } 527 528 /* 529 * it's possible for different functions' CCRs to be in the same 530 * underlying page. Check for that. 531 */ 532 533 SIMPLEQ_FOREACH(tmp, &sc->card.pf_head, pf_list) { 534 if ((tmp->pf_flags & PFF_ENABLED) && 535 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && 536 ((pf->ccr_base + PCMCIA_CCR_SIZE) <= 537 (tmp->ccr_base - tmp->pf_ccr_offset + 538 tmp->pf_ccr_realsize))) { 539 pf->pf_ccrt = tmp->pf_ccrt; 540 pf->pf_ccrh = tmp->pf_ccrh; 541 pf->pf_ccr_realsize = tmp->pf_ccr_realsize; 542 543 /* 544 * pf->pf_ccr_offset = (tmp->pf_ccr_offset - 545 * tmp->ccr_base) + pf->ccr_base; 546 */ 547 pf->pf_ccr_offset = 548 (tmp->pf_ccr_offset + pf->ccr_base) - 549 tmp->ccr_base; 550 pf->pf_ccr_window = tmp->pf_ccr_window; 551 break; 552 } 553 } 554 555 if (tmp == NULL) { 556 error = pcmcia_mem_alloc(pf, PCMCIA_CCR_SIZE, &pf->pf_pcmh); 557 if (error) 558 goto bad; 559 560 error = pcmcia_mem_map(pf, PCMCIA_MEM_ATTR, pf->ccr_base, 561 PCMCIA_CCR_SIZE, &pf->pf_pcmh, &pf->pf_ccr_offset, 562 &pf->pf_ccr_window); 563 if (error) { 564 pcmcia_mem_free(pf, &pf->pf_pcmh); 565 goto bad; 566 } 567 } 568 569 if (pcmcia_mfc(sc) || 1) { 570 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE0, 571 (pf->pf_mfc_iobase >> 0) & 0xff); 572 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE1, 573 (pf->pf_mfc_iobase >> 8) & 0xff); 574 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE2, 575 (pf->pf_mfc_iobase >> 16) & 0xff); 576 pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE3, 577 (pf->pf_mfc_iobase >> 24) & 0xff); 578 pcmcia_ccr_write(pf, PCMCIA_CCR_IOLIMIT, 579 pf->pf_mfc_iomax - pf->pf_mfc_iobase); 580 } 581 582 reg = 0; 583 if (pf->cfe->flags & PCMCIA_CFE_AUDIO) 584 reg |= PCMCIA_CCR_STATUS_AUDIO; 585 pcmcia_ccr_write(pf, PCMCIA_CCR_STATUS, reg); 586 587 pcmcia_ccr_write(pf, PCMCIA_CCR_SOCKETCOPY, 0); 588 589 reg = (pf->cfe->number & PCMCIA_CCR_OPTION_CFINDEX); 590 reg |= PCMCIA_CCR_OPTION_LEVIREQ; 591 if (pcmcia_mfc(sc)) { 592 reg |= (PCMCIA_CCR_OPTION_FUNC_ENABLE | 593 PCMCIA_CCR_OPTION_ADDR_DECODE); 594 if (pf->pf_ih) 595 reg |= PCMCIA_CCR_OPTION_IREQ_ENABLE; 596 597 } 598 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 599 600 #ifdef PCMCIADEBUG 601 if (pcmcia_debug) { 602 SIMPLEQ_FOREACH(tmp, &sc->card.pf_head, pf_list) { 603 printf("%s: function %d CCR at %d offset %lx: " 604 "%x %x %x %x, %x %x %x %x, %x\n", 605 tmp->sc->dev.dv_xname, tmp->number, 606 tmp->pf_ccr_window, 607 (unsigned long) tmp->pf_ccr_offset, 608 pcmcia_ccr_read(tmp, 0), 609 pcmcia_ccr_read(tmp, 1), 610 pcmcia_ccr_read(tmp, 2), 611 pcmcia_ccr_read(tmp, 3), 612 613 pcmcia_ccr_read(tmp, 5), 614 pcmcia_ccr_read(tmp, 6), 615 pcmcia_ccr_read(tmp, 7), 616 pcmcia_ccr_read(tmp, 8), 617 618 pcmcia_ccr_read(tmp, 9)); 619 } 620 } 621 #endif 622 623 #ifdef IT8368E_LEGACY_MODE 624 /* return to I/O mode */ 625 it8368_mode(pf, IT8368_IO_MODE, IT8368_WIDTH_16); 626 #endif 627 628 pf->pf_flags |= PFF_ENABLED; 629 return (0); 630 631 bad: 632 /* 633 * Decrement the reference count, and power down the socket, if 634 * necessary. 635 */ 636 printf("%s: couldn't map the CCR\n", pf->child->dv_xname); 637 pcmcia_socket_disable(&sc->dev); 638 639 return (error); 640 } 641 642 /* Disable PCMCIA function. */ 643 void 644 pcmcia_function_disable(pf) 645 struct pcmcia_function *pf; 646 { 647 struct pcmcia_softc *sc = pf->sc; 648 struct pcmcia_function *tmp; 649 int reg; 650 651 if (pf->cfe == NULL) 652 panic("pcmcia_function_enable: function not initialized"); 653 654 if ((pf->pf_flags & PFF_ENABLED) == 0) { 655 /* 656 * Don't do anything but decrement if we're already disabled. 657 */ 658 goto out; 659 } 660 661 if (pcmcia_mfc(sc) && 662 (pf->pf_flags & PFF_DETACHED) == 0) { 663 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 664 reg &= ~(PCMCIA_CCR_OPTION_FUNC_ENABLE| 665 PCMCIA_CCR_OPTION_ADDR_DECODE| 666 PCMCIA_CCR_OPTION_IREQ_ENABLE); 667 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 668 } 669 670 /* 671 * it's possible for different functions' CCRs to be in the same 672 * underlying page. Check for that. Note we mark us as disabled 673 * first to avoid matching ourself. 674 */ 675 676 pf->pf_flags &= ~PFF_ENABLED; 677 SIMPLEQ_FOREACH(tmp, &sc->card.pf_head, pf_list) { 678 if ((tmp->pf_flags & PFF_ENABLED) && 679 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && 680 ((pf->ccr_base + PCMCIA_CCR_SIZE) <= 681 (tmp->ccr_base - tmp->pf_ccr_offset + tmp->pf_ccr_realsize))) 682 break; 683 } 684 685 /* Not used by anyone else; unmap the CCR. */ 686 if (tmp == NULL) { 687 pcmcia_mem_unmap(pf, pf->pf_ccr_window); 688 pcmcia_mem_free(pf, &pf->pf_pcmh); 689 } 690 691 out: 692 /* 693 * Decrement the reference count, and power down the socket, if 694 * necessary. 695 */ 696 pcmcia_socket_disable(&sc->dev); 697 } 698 699 int 700 pcmcia_io_map(pf, width, pcihp, windowp) 701 struct pcmcia_function *pf; 702 int width; 703 struct pcmcia_io_handle *pcihp; 704 int *windowp; 705 { 706 struct pcmcia_softc *sc = pf->sc; 707 int error; 708 709 if (pf->pf_flags & PFF_ENABLED) 710 printf("pcmcia_io_map: function is enabled!\n"); 711 712 error = pcmcia_chip_io_map(sc->pct, sc->pch, 713 width, 0, pcihp->size, pcihp, windowp); 714 if (error) 715 return (error); 716 717 /* 718 * XXX in the multifunction multi-iospace-per-function case, this 719 * needs to cooperate with io_alloc to make sure that the spaces 720 * don't overlap, and that the ccr's are set correctly 721 */ 722 723 if (pcmcia_mfc(sc) || 1) { 724 bus_addr_t iobase = pcihp->addr; 725 bus_addr_t iomax = pcihp->addr + pcihp->size - 1; 726 727 DPRINTF(("window iobase %lx iomax %lx\n", (long)iobase, 728 (long)iomax)); 729 if (pf->pf_mfc_iobase == 0) { 730 pf->pf_mfc_iobase = iobase; 731 pf->pf_mfc_iomax = iomax; 732 } else { 733 if (iobase < pf->pf_mfc_iobase) 734 pf->pf_mfc_iobase = iobase; 735 if (iomax > pf->pf_mfc_iomax) 736 pf->pf_mfc_iomax = iomax; 737 } 738 DPRINTF(("function iobase %lx iomax %lx\n", 739 (long)pf->pf_mfc_iobase, (long)pf->pf_mfc_iomax)); 740 } 741 742 return (0); 743 } 744 745 void 746 pcmcia_io_unmap(pf, window) 747 struct pcmcia_function *pf; 748 int window; 749 { 750 struct pcmcia_softc *sc = pf->sc; 751 752 if (pf->pf_flags & PFF_ENABLED) 753 printf("pcmcia_io_unmap: function is enabled!\n"); 754 755 pcmcia_chip_io_unmap(sc->pct, sc->pch, window); 756 } 757 758 void * 759 pcmcia_intr_establish(pf, ipl, ih_fct, ih_arg) 760 struct pcmcia_function *pf; 761 int ipl; 762 int (*ih_fct)(void *); 763 void *ih_arg; 764 { 765 766 if (pf->pf_flags & PFF_ENABLED) 767 printf("pcmcia_intr_establish: function is enabled!\n"); 768 if (pf->pf_ih) 769 panic("pcmcia_intr_establish: already done\n"); 770 771 pf->pf_ih = pcmcia_chip_intr_establish(pf->sc->pct, pf->sc->pch, 772 pf, ipl, ih_fct, ih_arg); 773 if (!pf->pf_ih) 774 printf("%s: interrupt establish failed\n", pf->child->dv_xname); 775 return (pf->pf_ih); 776 } 777 778 void 779 pcmcia_intr_disestablish(pf, ih) 780 struct pcmcia_function *pf; 781 void *ih; 782 { 783 784 if (pf->pf_flags & PFF_ENABLED) 785 printf("pcmcia_intr_disestablish: function is enabled!\n"); 786 if (!pf->pf_ih) 787 panic("pcmcia_intr_distestablish: already done\n"); 788 789 pcmcia_chip_intr_disestablish(pf->sc->pct, pf->sc->pch, ih); 790 pf->pf_ih = 0; 791 } 792 793 int 794 pcmcia_config_alloc(pf, cfe) 795 struct pcmcia_function *pf; 796 struct pcmcia_config_entry *cfe; 797 { 798 int error = 0; 799 int n, m; 800 801 for (n = 0; n < cfe->num_iospace; n++) { 802 bus_addr_t start = cfe->iospace[n].start; 803 bus_size_t length = cfe->iospace[n].length; 804 bus_size_t align = cfe->iomask ? (1 << cfe->iomask) : 805 length; 806 bus_size_t skew = start & (align - 1); 807 808 if ((start - skew) == 0 && align < 0x400) { 809 if (skew) 810 printf("Drats! I need a skew!\n"); 811 start = 0; 812 } 813 814 DPRINTF(("pcmcia_config_alloc: io %d start=%lx length=%lx align=%lx skew=%lx\n", 815 n, (long)start, (long)length, (long)align, (long)skew)); 816 817 error = pcmcia_io_alloc(pf, start, length, align, 818 &cfe->iospace[n].handle); 819 if (error) 820 break; 821 } 822 if (n < cfe->num_iospace) { 823 for (m = 0; m < n; m++) 824 pcmcia_io_free(pf, &cfe->iospace[m].handle); 825 return (error); 826 } 827 828 for (n = 0; n < cfe->num_memspace; n++) { 829 bus_size_t length = cfe->memspace[n].length; 830 831 DPRINTF(("pcmcia_config_alloc: mem %d length %lx\n", n, 832 (long)length)); 833 834 error = pcmcia_mem_alloc(pf, length, &cfe->memspace[n].handle); 835 if (error) 836 break; 837 } 838 if (n < cfe->num_memspace) { 839 for (m = 0; m < cfe->num_iospace; m++) 840 pcmcia_io_free(pf, &cfe->iospace[m].handle); 841 for (m = 0; m < n; m++) 842 pcmcia_mem_free(pf, &cfe->memspace[m].handle); 843 return (error); 844 } 845 846 /* This one's good! */ 847 return (error); 848 } 849 850 void 851 pcmcia_config_free(pf) 852 struct pcmcia_function *pf; 853 { 854 struct pcmcia_config_entry *cfe = pf->cfe; 855 int m; 856 857 for (m = 0; m < cfe->num_iospace; m++) 858 pcmcia_io_free(pf, &cfe->iospace[m].handle); 859 for (m = 0; m < cfe->num_memspace; m++) 860 pcmcia_mem_free(pf, &cfe->memspace[m].handle); 861 } 862 863 int 864 pcmcia_config_map(pf) 865 struct pcmcia_function *pf; 866 { 867 struct pcmcia_config_entry *cfe = pf->cfe; 868 int error = 0; 869 int n, m; 870 871 for (n = 0; n < cfe->num_iospace; n++) { 872 int width; 873 874 if (cfe->flags & PCMCIA_CFE_IO16) 875 width = PCMCIA_WIDTH_AUTO; 876 else 877 width = PCMCIA_WIDTH_IO8; 878 error = pcmcia_io_map(pf, width, &cfe->iospace[n].handle, 879 &cfe->iospace[n].window); 880 if (error) 881 break; 882 } 883 if (n < cfe->num_iospace) { 884 for (m = 0; m < n; m++) 885 pcmcia_io_unmap(pf, cfe->iospace[m].window); 886 return (error); 887 } 888 889 for (n = 0; n < cfe->num_memspace; n++) { 890 bus_size_t length = cfe->memspace[n].length; 891 int width; 892 893 DPRINTF(("pcmcia_config_alloc: mem %d length %lx\n", n, 894 (long)length)); 895 896 /*XXX*/ 897 width = PCMCIA_WIDTH_MEM8|PCMCIA_MEM_COMMON; 898 error = pcmcia_mem_map(pf, width, 0, length, 899 &cfe->memspace[n].handle, &cfe->memspace[n].offset, 900 &cfe->memspace[n].window); 901 if (error) 902 break; 903 } 904 if (n < cfe->num_memspace) { 905 for (m = 0; m < cfe->num_iospace; m++) 906 pcmcia_io_unmap(pf, cfe->iospace[m].window); 907 for (m = 0; m < n; m++) 908 pcmcia_mem_unmap(pf, cfe->memspace[m].window); 909 return (error); 910 } 911 912 /* This one's good! */ 913 return (error); 914 } 915 916 void 917 pcmcia_config_unmap(pf) 918 struct pcmcia_function *pf; 919 { 920 struct pcmcia_config_entry *cfe = pf->cfe; 921 int m; 922 923 for (m = 0; m < cfe->num_iospace; m++) 924 pcmcia_io_unmap(pf, cfe->iospace[m].window); 925 for (m = 0; m < cfe->num_memspace; m++) 926 pcmcia_mem_unmap(pf, cfe->memspace[m].window); 927 } 928 929 int 930 pcmcia_function_configure(pf, validator) 931 struct pcmcia_function *pf; 932 int (*validator)(struct pcmcia_config_entry *); 933 { 934 struct pcmcia_config_entry *cfe; 935 int error = ENOENT; 936 937 SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) { 938 error = validator(cfe); 939 if (error) 940 continue; 941 error = pcmcia_config_alloc(pf, cfe); 942 if (!error) 943 break; 944 } 945 if (!cfe) { 946 DPRINTF(("pcmcia_function_configure: no config entry found, error=%d\n", 947 error)); 948 return (error); 949 } 950 951 /* Remember which configuration entry we are using. */ 952 pf->cfe = cfe; 953 954 error = pcmcia_config_map(pf); 955 if (error) { 956 DPRINTF(("pcmcia_function_configure: map failed, error=%d\n", 957 error)); 958 return (error); 959 } 960 961 return (0); 962 } 963 964 void 965 pcmcia_function_unconfigure(pf) 966 struct pcmcia_function *pf; 967 { 968 969 pcmcia_config_unmap(pf); 970 pcmcia_config_free(pf); 971 } 972
Indexes created Mon Sep 29 21:09:56 GMT 2025