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sys/dev/pccard/pccard.c
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1 /* $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 Marc Horowitz. 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 Marc Horowitz. 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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/malloc.h> 38 #include <sys/module.h> 39 #include <sys/kernel.h> 40 #include <sys/queue.h> 41 #include <sys/sysctl.h> 42 #include <sys/types.h> 43 44 #include <sys/bus.h> 45 #include <machine/bus.h> 46 #include <sys/rman.h> 47 #include <machine/resource.h> 48 49 #include <net/ethernet.h> 50 51 #include <dev/pccard/pccardreg.h> 52 #include <dev/pccard/pccardvar.h> 53 #include <dev/pccard/pccardvarp.h> 54 #include <dev/pccard/pccard_cis.h> 55 56 #include "power_if.h" 57 #include "card_if.h" 58 59 #define PCCARDDEBUG 60 61 /* sysctl vars */ 62 static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters"); 63 64 int pccard_debug = 0; 65 TUNABLE_INT("hw.pccard.debug", &pccard_debug); 66 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RW, 67 &pccard_debug, 0, 68 "pccard debug"); 69 70 int pccard_cis_debug = 0; 71 TUNABLE_INT("hw.pccard.cis_debug", &pccard_cis_debug); 72 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RW, 73 &pccard_cis_debug, 0, "pccard CIS debug"); 74 75 #ifdef PCCARDDEBUG 76 #define DPRINTF(arg) if (pccard_debug) printf arg 77 #define DEVPRINTF(arg) if (pccard_debug) device_printf arg 78 #define PRVERBOSE(arg) printf arg 79 #define DEVPRVERBOSE(arg) device_printf arg 80 #else 81 #define DPRINTF(arg) 82 #define DEVPRINTF(arg) 83 #define PRVERBOSE(arg) if (bootverbose) printf arg 84 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg 85 #endif 86 87 static int pccard_ccr_read(struct pccard_function *pf, int ccr); 88 static void pccard_ccr_write(struct pccard_function *pf, int ccr, int val); 89 static int pccard_attach_card(device_t dev); 90 static int pccard_detach_card(device_t dev); 91 static void pccard_function_init(struct pccard_function *pf, int entry); 92 static void pccard_function_free(struct pccard_function *pf); 93 static int pccard_function_enable(struct pccard_function *pf); 94 static void pccard_function_disable(struct pccard_function *pf); 95 static int pccard_probe(device_t dev); 96 static int pccard_attach(device_t dev); 97 static int pccard_detach(device_t dev); 98 static void pccard_print_resources(struct resource_list *rl, 99 const char *name, int type, int count, const char *format); 100 static int pccard_print_child(device_t dev, device_t child); 101 static int pccard_set_resource(device_t dev, device_t child, int type, 102 int rid, u_long start, u_long count); 103 static int pccard_get_resource(device_t dev, device_t child, int type, 104 int rid, u_long *startp, u_long *countp); 105 static void pccard_delete_resource(device_t dev, device_t child, int type, 106 int rid); 107 static int pccard_set_res_flags(device_t dev, device_t child, int type, 108 int rid, u_long flags); 109 static int pccard_set_memory_offset(device_t dev, device_t child, int rid, 110 uint32_t offset, uint32_t *deltap); 111 static int pccard_probe_and_attach_child(device_t dev, device_t child, 112 struct pccard_function *pf); 113 static void pccard_probe_nomatch(device_t cbdev, device_t child); 114 static int pccard_read_ivar(device_t bus, device_t child, int which, 115 uintptr_t *result); 116 static void pccard_driver_added(device_t dev, driver_t *driver); 117 static struct resource *pccard_alloc_resource(device_t dev, 118 device_t child, int type, int *rid, u_long start, 119 u_long end, u_long count, u_int flags); 120 static int pccard_release_resource(device_t dev, device_t child, int type, 121 int rid, struct resource *r); 122 static void pccard_child_detached(device_t parent, device_t dev); 123 static int pccard_filter(void *arg); 124 static void pccard_intr(void *arg); 125 static int pccard_setup_intr(device_t dev, device_t child, 126 struct resource *irq, int flags, driver_filter_t *filt, 127 driver_intr_t *intr, void *arg, void **cookiep); 128 static int pccard_teardown_intr(device_t dev, device_t child, 129 struct resource *r, void *cookie); 130 131 static const struct pccard_product * 132 pccard_do_product_lookup(device_t bus, device_t dev, 133 const struct pccard_product *tab, size_t ent_size, 134 pccard_product_match_fn matchfn); 135 136 137 static int 138 pccard_ccr_read(struct pccard_function *pf, int ccr) 139 { 140 return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, 141 pf->pf_ccr_offset + ccr)); 142 } 143 144 static void 145 pccard_ccr_write(struct pccard_function *pf, int ccr, int val) 146 { 147 if ((pf->ccr_mask) & (1 << (ccr / 2))) { 148 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, 149 pf->pf_ccr_offset + ccr, val); 150 } 151 } 152 153 static int 154 pccard_set_default_descr(device_t dev) 155 { 156 const char *vendorstr, *prodstr; 157 uint32_t vendor, prod; 158 char *str; 159 160 if (pccard_get_vendor_str(dev, &vendorstr)) 161 return (0); 162 if (pccard_get_product_str(dev, &prodstr)) 163 return (0); 164 if (vendorstr != NULL && prodstr != NULL) { 165 str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF, 166 M_WAITOK); 167 sprintf(str, "%s %s", vendorstr, prodstr); 168 device_set_desc_copy(dev, str); 169 free(str, M_DEVBUF); 170 } else { 171 if (pccard_get_vendor(dev, &vendor)) 172 return (0); 173 if (pccard_get_product(dev, &prod)) 174 return (0); 175 str = malloc(100, M_DEVBUF, M_WAITOK); 176 snprintf(str, 100, "vendor=%#x product=%#x", vendor, prod); 177 device_set_desc_copy(dev, str); 178 free(str, M_DEVBUF); 179 } 180 return (0); 181 } 182 183 static int 184 pccard_attach_card(device_t dev) 185 { 186 struct pccard_softc *sc = PCCARD_SOFTC(dev); 187 struct pccard_function *pf; 188 struct pccard_ivar *ivar; 189 device_t child; 190 int i; 191 192 if (!STAILQ_EMPTY(&sc->card.pf_head)) { 193 if (bootverbose || pccard_debug) 194 device_printf(dev, "Card already inserted.\n"); 195 } 196 197 DEVPRINTF((dev, "chip_socket_enable\n")); 198 POWER_ENABLE_SOCKET(device_get_parent(dev), dev); 199 200 DEVPRINTF((dev, "read_cis\n")); 201 pccard_read_cis(sc); 202 203 DEVPRINTF((dev, "check_cis_quirks\n")); 204 pccard_check_cis_quirks(dev); 205 206 /* 207 * bail now if the card has no functions, or if there was an error in 208 * the cis. 209 */ 210 211 if (sc->card.error) { 212 device_printf(dev, "CARD ERROR!\n"); 213 return (1); 214 } 215 if (STAILQ_EMPTY(&sc->card.pf_head)) { 216 device_printf(dev, "Card has no functions!\n"); 217 return (1); 218 } 219 220 if (bootverbose || pccard_debug) 221 pccard_print_cis(dev); 222 223 DEVPRINTF((dev, "functions scanning\n")); 224 i = -1; 225 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 226 i++; 227 if (STAILQ_EMPTY(&pf->cfe_head)) { 228 device_printf(dev, 229 "Function %d has no config entries.!\n", i); 230 continue; 231 } 232 pf->sc = sc; 233 pf->cfe = NULL; 234 pf->dev = NULL; 235 } 236 DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1, 237 pccard_mfc(sc))); 238 239 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 240 if (STAILQ_EMPTY(&pf->cfe_head)) 241 continue; 242 ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF, 243 M_WAITOK | M_ZERO); 244 resource_list_init(&ivar->resources); 245 child = device_add_child(dev, NULL, -1); 246 device_set_ivars(child, ivar); 247 ivar->pf = pf; 248 pf->dev = child; 249 pccard_probe_and_attach_child(dev, child, pf); 250 } 251 return (0); 252 } 253 254 static int 255 pccard_probe_and_attach_child(device_t dev, device_t child, 256 struct pccard_function *pf) 257 { 258 struct pccard_softc *sc = PCCARD_SOFTC(dev); 259 int error; 260 261 /* 262 * In NetBSD, the drivers are responsible for activating each 263 * function of a card and selecting the config to use. In 264 * FreeBSD, all that's done automatically in the typical lazy 265 * way we do device resoruce allocation (except we pick the 266 * cfe up front). This is the biggest depature from the 267 * inherited NetBSD model, apart from the FreeBSD resource code. 268 * 269 * This seems to work well in practice for most cards. 270 * However, there are two cases that are problematic. If a 271 * driver wishes to pick and chose which config entry to use, 272 * then this method falls down. These are usually older 273 * cards. In addition, there are some cards that have 274 * multiple hardware units on the cards, but presents only one 275 * CIS chain. These cards are combination cards, but only one 276 * of these units can be on at a time. 277 * 278 * To overcome this limitation, while preserving the basic 279 * model, the probe routine can select a cfe and try to 280 * activate it. If that succeeds, then we'll keep track of 281 * and let that information persist until we attach the card. 282 * Probe routines that do this MUST return 0, and cannot 283 * participate in the bidding process for a device. This 284 * seems harsh until you realize that if a probe routine knows 285 * enough to override the cfe we pick, then chances are very 286 * very good that it is the only driver that could hope to 287 * cope with the card. Bidding is for generic drivers, and 288 * while some of them may also match, none of them will do 289 * configuration override. 290 */ 291 error = device_probe(child); 292 if (error != 0) 293 goto out; 294 pccard_function_init(pf, -1); 295 if (sc->sc_enabled_count == 0) 296 POWER_ENABLE_SOCKET(device_get_parent(dev), dev); 297 if (pccard_function_enable(pf) == 0 && 298 pccard_set_default_descr(child) == 0 && 299 device_attach(child) == 0) { 300 DEVPRINTF((sc->dev, "function %d CCR at %d offset %#x " 301 "mask %#x: %#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n", 302 pf->number, pf->pf_ccr_window, pf->pf_ccr_offset, 303 pf->ccr_mask, pccard_ccr_read(pf, 0x00), 304 pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04), 305 pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A), 306 pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E), 307 pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12))); 308 return (0); 309 } 310 error = ENXIO; 311 out:; 312 /* 313 * Probe may fail AND also try to select a cfe, if so, free 314 * it. This is how we do cfe override. Or the attach fails. 315 * Either way, we have to clean up. 316 */ 317 if (pf->cfe != NULL) 318 pccard_function_disable(pf); 319 pf->cfe = NULL; 320 pccard_function_free(pf); 321 return error; 322 } 323 324 static int 325 pccard_detach_card(device_t dev) 326 { 327 struct pccard_softc *sc = PCCARD_SOFTC(dev); 328 struct pccard_function *pf; 329 struct pccard_config_entry *cfe; 330 struct pccard_ivar *devi; 331 int state; 332 333 /* 334 * We are running on either the PCCARD socket's event thread 335 * or in user context detaching a device by user request. 336 */ 337 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 338 if (pf->dev == NULL) 339 continue; 340 state = device_get_state(pf->dev); 341 if (state == DS_ATTACHED || state == DS_BUSY) 342 device_detach(pf->dev); 343 if (pf->cfe != NULL) 344 pccard_function_disable(pf); 345 pccard_function_free(pf); 346 devi = PCCARD_IVAR(pf->dev); 347 device_delete_child(dev, pf->dev); 348 free(devi, M_DEVBUF); 349 } 350 if (sc->sc_enabled_count == 0) 351 POWER_DISABLE_SOCKET(device_get_parent(dev), dev); 352 353 while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) { 354 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) { 355 STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list); 356 free(cfe, M_DEVBUF); 357 } 358 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list); 359 free(pf, M_DEVBUF); 360 } 361 STAILQ_INIT(&sc->card.pf_head); 362 return (0); 363 } 364 365 static const struct pccard_product * 366 pccard_do_product_lookup(device_t bus, device_t dev, 367 const struct pccard_product *tab, size_t ent_size, 368 pccard_product_match_fn matchfn) 369 { 370 const struct pccard_product *ent; 371 int matches; 372 uint32_t vendor; 373 uint32_t prod; 374 const char *vendorstr; 375 const char *prodstr; 376 const char *cis3str; 377 const char *cis4str; 378 379 #ifdef DIAGNOSTIC 380 if (sizeof *ent > ent_size) 381 panic("pccard_product_lookup: bogus ent_size %jd", 382 (intmax_t) ent_size); 383 #endif 384 if (pccard_get_vendor(dev, &vendor)) 385 return (NULL); 386 if (pccard_get_product(dev, &prod)) 387 return (NULL); 388 if (pccard_get_vendor_str(dev, &vendorstr)) 389 return (NULL); 390 if (pccard_get_product_str(dev, &prodstr)) 391 return (NULL); 392 if (pccard_get_cis3_str(dev, &cis3str)) 393 return (NULL); 394 if (pccard_get_cis4_str(dev, &cis4str)) 395 return (NULL); 396 for (ent = tab; ent->pp_vendor != 0; ent = 397 (const struct pccard_product *) ((const char *) ent + ent_size)) { 398 matches = 1; 399 if (ent->pp_vendor == PCCARD_VENDOR_ANY && 400 ent->pp_product == PCCARD_PRODUCT_ANY && 401 ent->pp_cis[0] == NULL && 402 ent->pp_cis[1] == NULL) { 403 if (ent->pp_name) 404 device_printf(dev, 405 "Total wildcard entry ignored for %s\n", 406 ent->pp_name); 407 continue; 408 } 409 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY && 410 vendor != ent->pp_vendor) 411 matches = 0; 412 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY && 413 prod != ent->pp_product) 414 matches = 0; 415 if (matches && ent->pp_cis[0] && 416 (vendorstr == NULL || 417 strcmp(ent->pp_cis[0], vendorstr) != 0)) 418 matches = 0; 419 if (matches && ent->pp_cis[1] && 420 (prodstr == NULL || 421 strcmp(ent->pp_cis[1], prodstr) != 0)) 422 matches = 0; 423 if (matches && ent->pp_cis[2] && 424 (cis3str == NULL || 425 strcmp(ent->pp_cis[2], cis3str) != 0)) 426 matches = 0; 427 if (matches && ent->pp_cis[3] && 428 (cis4str == NULL || 429 strcmp(ent->pp_cis[3], cis4str) != 0)) 430 matches = 0; 431 if (matchfn != NULL) 432 matches = (*matchfn)(dev, ent, matches); 433 if (matches) 434 return (ent); 435 } 436 return (NULL); 437 } 438 439 /** 440 * @brief pccard_select_cfe 441 * 442 * Select a cfe entry to use. Should be called from the pccard's probe 443 * routine after it knows for sure that it wants this card. 444 * 445 * XXX I think we need to make this symbol be static, ala the kobj stuff 446 * we do for everything else. This is a quick hack. 447 */ 448 int 449 pccard_select_cfe(device_t dev, int entry) 450 { 451 struct pccard_ivar *devi = PCCARD_IVAR(dev); 452 struct pccard_function *pf = devi->pf; 453 454 pccard_function_init(pf, entry); 455 return (pf->cfe ? 0 : ENOMEM); 456 } 457 458 /* 459 * Initialize a PCCARD function. May be called as long as the function is 460 * disabled. 461 * 462 * Note: pccard_function_init should not keep resources allocated. It should 463 * only set them up ala isa pnp, set the values in the rl lists, and return. 464 * Any resource held after pccard_function_init is called is a bug. However, 465 * the bus routines to get the resources also assume that pccard_function_init 466 * does this, so they need to be fixed too. 467 */ 468 static void 469 pccard_function_init(struct pccard_function *pf, int entry) 470 { 471 struct pccard_config_entry *cfe; 472 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); 473 struct resource_list *rl = &devi->resources; 474 struct resource_list_entry *rle; 475 struct resource *r = 0; 476 device_t bus; 477 u_long start, end, len; 478 int i, rid, spaces; 479 480 if (pf->pf_flags & PFF_ENABLED) { 481 printf("pccard_function_init: function is enabled"); 482 return; 483 } 484 485 /* 486 * Driver probe routine requested a specific entry already 487 * that succeeded. 488 */ 489 if (pf->cfe != NULL) 490 return; 491 492 /* 493 * walk the list of configuration entries until we find one that 494 * we can allocate all the resources to. 495 */ 496 bus = device_get_parent(pf->dev); 497 STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) { 498 if (cfe->iftype != PCCARD_IFTYPE_IO) 499 continue; 500 if (entry != -1 && cfe->number != entry) 501 continue; 502 spaces = 0; 503 for (i = 0; i < cfe->num_iospace; i++) { 504 start = cfe->iospace[i].start; 505 if (start) 506 end = start + cfe->iospace[i].length - 1; 507 else 508 end = ~0UL; 509 DEVPRINTF((bus, "I/O rid %d start %#lx end %#lx\n", 510 i, start, end)); 511 rid = i; 512 len = cfe->iospace[i].length; 513 r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid, 514 start, end, len, rman_make_alignment_flags(len)); 515 if (r == NULL) 516 goto not_this_one; 517 rle = resource_list_add(rl, SYS_RES_IOPORT, 518 rid, rman_get_start(r), rman_get_end(r), 519 cfe->iospace[i].length); 520 if (rle == NULL) 521 panic("Cannot add resource rid %d IOPORT", rid); 522 rle->res = r; 523 spaces++; 524 } 525 for (i = 0; i < cfe->num_memspace; i++) { 526 start = cfe->memspace[i].hostaddr; 527 if (start) 528 end = start + cfe->memspace[i].length - 1; 529 else 530 end = ~0UL; 531 DEVPRINTF((bus, "Memory rid %d start %#lx end %#lx\n", 532 i, start, end)); 533 rid = i; 534 len = cfe->memspace[i].length; 535 r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid, 536 start, end, len, rman_make_alignment_flags(len)); 537 if (r == NULL) 538 goto not_this_one; 539 rle = resource_list_add(rl, SYS_RES_MEMORY, 540 rid, rman_get_start(r), rman_get_end(r), 541 cfe->memspace[i].length); 542 if (rle == NULL) 543 panic("Cannot add resource rid %d MEM", rid); 544 rle->res = r; 545 spaces++; 546 } 547 if (spaces == 0) { 548 DEVPRINTF((bus, "Neither memory nor I/O mapped\n")); 549 goto not_this_one; 550 } 551 if (cfe->irqmask) { 552 rid = 0; 553 r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid, 554 RF_SHAREABLE); 555 if (r == NULL) 556 goto not_this_one; 557 rle = resource_list_add(rl, SYS_RES_IRQ, rid, 558 rman_get_start(r), rman_get_end(r), 1); 559 if (rle == NULL) 560 panic("Cannot add resource rid %d IRQ", rid); 561 rle->res = r; 562 } 563 /* If we get to here, we've allocated all we need */ 564 pf->cfe = cfe; 565 break; 566 not_this_one:; 567 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n", 568 cfe->number)); 569 resource_list_purge(rl); 570 } 571 } 572 573 /* 574 * Free resources allocated by pccard_function_init(), May be called as long 575 * as the function is disabled. 576 * 577 * NOTE: This function should be unnecessary. pccard_function_init should 578 * never keep resources initialized. 579 */ 580 static void 581 pccard_function_free(struct pccard_function *pf) 582 { 583 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); 584 struct resource_list_entry *rle; 585 586 if (pf->pf_flags & PFF_ENABLED) { 587 printf("pccard_function_free: function is enabled"); 588 return; 589 } 590 591 STAILQ_FOREACH(rle, &devi->resources, link) { 592 if (rle->res) { 593 if (rman_get_device(rle->res) != pf->sc->dev) 594 device_printf(pf->sc->dev, 595 "function_free: Resource still owned by " 596 "child, oops. " 597 "(type=%d, rid=%d, addr=%#lx)\n", 598 rle->type, rle->rid, 599 rman_get_start(rle->res)); 600 BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev), 601 pf->sc->dev, rle->type, rle->rid, rle->res); 602 rle->res = NULL; 603 } 604 } 605 resource_list_free(&devi->resources); 606 } 607 608 static void 609 pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr, 610 bus_addr_t offset, bus_size_t size) 611 { 612 bus_size_t iosize, tmp; 613 614 if (addr != 0) { 615 if (pf->pf_mfc_iomax == 0) { 616 pf->pf_mfc_iobase = addr + offset; 617 pf->pf_mfc_iomax = pf->pf_mfc_iobase + size; 618 } else { 619 /* this makes the assumption that nothing overlaps */ 620 if (pf->pf_mfc_iobase > addr + offset) 621 pf->pf_mfc_iobase = addr + offset; 622 if (pf->pf_mfc_iomax < addr + offset + size) 623 pf->pf_mfc_iomax = addr + offset + size; 624 } 625 } 626 627 tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase; 628 /* round up to nearest (2^n)-1 */ 629 for (iosize = 1; iosize < tmp; iosize <<= 1) 630 ; 631 iosize--; 632 633 DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n", 634 (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1))); 635 pccard_ccr_write(pf, PCCARD_CCR_IOBASE0, 636 pf->pf_mfc_iobase & 0xff); 637 pccard_ccr_write(pf, PCCARD_CCR_IOBASE1, 638 (pf->pf_mfc_iobase >> 8) & 0xff); 639 pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0); 640 pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0); 641 pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize); 642 } 643 644 /* Enable a PCCARD function */ 645 static int 646 pccard_function_enable(struct pccard_function *pf) 647 { 648 struct pccard_function *tmp; 649 int reg; 650 device_t dev = pf->sc->dev; 651 652 if (pf->cfe == NULL) { 653 DEVPRVERBOSE((dev, "No config entry could be allocated.\n")); 654 return (ENOMEM); 655 } 656 657 if (pf->pf_flags & PFF_ENABLED) 658 return (0); 659 pf->sc->sc_enabled_count++; 660 661 /* 662 * it's possible for different functions' CCRs to be in the same 663 * underlying page. Check for that. 664 */ 665 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { 666 if ((tmp->pf_flags & PFF_ENABLED) && 667 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && 668 ((pf->ccr_base + PCCARD_CCR_SIZE) <= 669 (tmp->ccr_base - tmp->pf_ccr_offset + 670 tmp->pf_ccr_realsize))) { 671 pf->pf_ccrt = tmp->pf_ccrt; 672 pf->pf_ccrh = tmp->pf_ccrh; 673 pf->pf_ccr_realsize = tmp->pf_ccr_realsize; 674 675 /* 676 * pf->pf_ccr_offset = (tmp->pf_ccr_offset - 677 * tmp->ccr_base) + pf->ccr_base; 678 */ 679 /* pf->pf_ccr_offset = 680 (tmp->pf_ccr_offset + pf->ccr_base) - 681 tmp->ccr_base; */ 682 pf->pf_ccr_window = tmp->pf_ccr_window; 683 break; 684 } 685 } 686 if (tmp == NULL) { 687 pf->ccr_rid = 0; 688 pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY, 689 &pf->ccr_rid, 0, ~0, PCCARD_MEM_PAGE_SIZE, RF_ACTIVE); 690 if (!pf->ccr_res) 691 goto bad; 692 DEVPRINTF((dev, "ccr_res == %#lx-%#lx, base=%#x\n", 693 rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res), 694 pf->ccr_base)); 695 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY, 696 pf->ccr_rid, PCCARD_A_MEM_ATTR); 697 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev, 698 pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset); 699 pf->pf_ccrt = rman_get_bustag(pf->ccr_res); 700 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res); 701 pf->pf_ccr_realsize = 1; 702 } 703 704 reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX); 705 reg |= PCCARD_CCR_OPTION_LEVIREQ; 706 if (pccard_mfc(pf->sc)) { 707 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE | 708 PCCARD_CCR_OPTION_ADDR_DECODE); 709 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */ 710 } 711 pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg); 712 713 reg = 0; 714 if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0) 715 reg |= PCCARD_CCR_STATUS_IOIS8; 716 if (pf->cfe->flags & PCCARD_CFE_AUDIO) 717 reg |= PCCARD_CCR_STATUS_AUDIO; 718 pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg); 719 720 pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0); 721 722 if (pccard_mfc(pf->sc)) 723 pccard_mfc_adjust_iobase(pf, 0, 0, 0); 724 725 #ifdef PCCARDDEBUG 726 if (pccard_debug) { 727 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { 728 device_printf(tmp->sc->dev, 729 "function %d CCR at %d offset %#x: " 730 "%#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n", 731 tmp->number, tmp->pf_ccr_window, 732 tmp->pf_ccr_offset, 733 pccard_ccr_read(tmp, 0x00), 734 pccard_ccr_read(tmp, 0x02), 735 pccard_ccr_read(tmp, 0x04), 736 pccard_ccr_read(tmp, 0x06), 737 pccard_ccr_read(tmp, 0x0A), 738 pccard_ccr_read(tmp, 0x0C), 739 pccard_ccr_read(tmp, 0x0E), 740 pccard_ccr_read(tmp, 0x10), 741 pccard_ccr_read(tmp, 0x12)); 742 } 743 } 744 #endif 745 pf->pf_flags |= PFF_ENABLED; 746 return (0); 747 748 bad: 749 /* 750 * Decrement the reference count, and power down the socket, if 751 * necessary. 752 */ 753 pf->sc->sc_enabled_count--; 754 DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count)); 755 756 return (1); 757 } 758 759 /* Disable PCCARD function. */ 760 static void 761 pccard_function_disable(struct pccard_function *pf) 762 { 763 struct pccard_function *tmp; 764 device_t dev = pf->sc->dev; 765 766 if (pf->cfe == NULL) 767 panic("pccard_function_disable: function not initialized"); 768 769 if ((pf->pf_flags & PFF_ENABLED) == 0) 770 return; 771 if (pf->intr_handler != NULL) { 772 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); 773 struct resource_list_entry *rle = 774 resource_list_find(&devi->resources, SYS_RES_IRQ, 0); 775 if (rle == NULL) 776 panic("Can't disable an interrupt with no IRQ res\n"); 777 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res, 778 pf->intr_handler_cookie); 779 } 780 781 /* 782 * it's possible for different functions' CCRs to be in the same 783 * underlying page. Check for that. Note we mark us as disabled 784 * first to avoid matching ourself. 785 */ 786 787 pf->pf_flags &= ~PFF_ENABLED; 788 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { 789 if ((tmp->pf_flags & PFF_ENABLED) && 790 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && 791 ((pf->ccr_base + PCCARD_CCR_SIZE) <= 792 (tmp->ccr_base - tmp->pf_ccr_offset + 793 tmp->pf_ccr_realsize))) 794 break; 795 } 796 797 /* Not used by anyone else; unmap the CCR. */ 798 if (tmp == NULL) { 799 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid, 800 pf->ccr_res); 801 pf->ccr_res = NULL; 802 } 803 804 /* 805 * Decrement the reference count, and power down the socket, if 806 * necessary. 807 */ 808 pf->sc->sc_enabled_count--; 809 } 810 811 #define PCCARD_NPORT 2 812 #define PCCARD_NMEM 5 813 #define PCCARD_NIRQ 1 814 #define PCCARD_NDRQ 0 815 816 static int 817 pccard_probe(device_t dev) 818 { 819 device_set_desc(dev, "16-bit PCCard bus"); 820 return (0); 821 } 822 823 static int 824 pccard_attach(device_t dev) 825 { 826 struct pccard_softc *sc = PCCARD_SOFTC(dev); 827 int err; 828 829 sc->dev = dev; 830 sc->sc_enabled_count = 0; 831 if ((err = pccard_device_create(sc)) != 0) 832 return (err); 833 STAILQ_INIT(&sc->card.pf_head); 834 return (bus_generic_attach(dev)); 835 } 836 837 static int 838 pccard_detach(device_t dev) 839 { 840 pccard_detach_card(dev); 841 pccard_device_destroy(device_get_softc(dev)); 842 return (0); 843 } 844 845 static int 846 pccard_suspend(device_t self) 847 { 848 pccard_detach_card(self); 849 return (0); 850 } 851 852 static 853 int 854 pccard_resume(device_t self) 855 { 856 return (0); 857 } 858 859 static void 860 pccard_print_resources(struct resource_list *rl, const char *name, int type, 861 int count, const char *format) 862 { 863 struct resource_list_entry *rle; 864 int printed; 865 int i; 866 867 printed = 0; 868 for (i = 0; i < count; i++) { 869 rle = resource_list_find(rl, type, i); 870 if (rle != NULL) { 871 if (printed == 0) 872 printf(" %s ", name); 873 else if (printed > 0) 874 printf(","); 875 printed++; 876 printf(format, rle->start); 877 if (rle->count > 1) { 878 printf("-"); 879 printf(format, rle->start + rle->count - 1); 880 } 881 } else if (i > 3) { 882 /* check the first few regardless */ 883 break; 884 } 885 } 886 } 887 888 static int 889 pccard_print_child(device_t dev, device_t child) 890 { 891 struct pccard_ivar *devi = PCCARD_IVAR(child); 892 struct resource_list *rl = &devi->resources; 893 int retval = 0; 894 895 retval += bus_print_child_header(dev, child); 896 retval += printf(" at"); 897 898 if (devi != NULL) { 899 pccard_print_resources(rl, "port", SYS_RES_IOPORT, 900 PCCARD_NPORT, "%#lx"); 901 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY, 902 PCCARD_NMEM, "%#lx"); 903 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ, 904 "%ld"); 905 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ, 906 "%ld"); 907 retval += printf(" function %d config %d", devi->pf->number, 908 devi->pf->cfe->number); 909 } 910 911 retval += bus_print_child_footer(dev, child); 912 913 return (retval); 914 } 915 916 static int 917 pccard_set_resource(device_t dev, device_t child, int type, int rid, 918 u_long start, u_long count) 919 { 920 struct pccard_ivar *devi = PCCARD_IVAR(child); 921 struct resource_list *rl = &devi->resources; 922 923 if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY 924 && type != SYS_RES_IRQ && type != SYS_RES_DRQ) 925 return (EINVAL); 926 if (rid < 0) 927 return (EINVAL); 928 if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT) 929 return (EINVAL); 930 if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM) 931 return (EINVAL); 932 if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ) 933 return (EINVAL); 934 if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ) 935 return (EINVAL); 936 937 resource_list_add(rl, type, rid, start, start + count - 1, count); 938 if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev, 939 type, &rid, start, start + count - 1, count, 0)) 940 return 0; 941 else 942 return ENOMEM; 943 } 944 945 static int 946 pccard_get_resource(device_t dev, device_t child, int type, int rid, 947 u_long *startp, u_long *countp) 948 { 949 struct pccard_ivar *devi = PCCARD_IVAR(child); 950 struct resource_list *rl = &devi->resources; 951 struct resource_list_entry *rle; 952 953 rle = resource_list_find(rl, type, rid); 954 if (rle == NULL) 955 return (ENOENT); 956 957 if (startp != NULL) 958 *startp = rle->start; 959 if (countp != NULL) 960 *countp = rle->count; 961 962 return (0); 963 } 964 965 static void 966 pccard_delete_resource(device_t dev, device_t child, int type, int rid) 967 { 968 struct pccard_ivar *devi = PCCARD_IVAR(child); 969 struct resource_list *rl = &devi->resources; 970 resource_list_delete(rl, type, rid); 971 } 972 973 static int 974 pccard_set_res_flags(device_t dev, device_t child, int type, int rid, 975 u_long flags) 976 { 977 return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type, 978 rid, flags)); 979 } 980 981 static int 982 pccard_set_memory_offset(device_t dev, device_t child, int rid, 983 uint32_t offset, uint32_t *deltap) 984 985 { 986 return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid, 987 offset, deltap)); 988 } 989 990 static void 991 pccard_probe_nomatch(device_t bus, device_t child) 992 { 993 struct pccard_ivar *devi = PCCARD_IVAR(child); 994 struct pccard_function *pf = devi->pf; 995 struct pccard_softc *sc = PCCARD_SOFTC(bus); 996 int i; 997 998 device_printf(bus, "<unknown card>"); 999 printf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) " 1000 "at function %d\n", sc->card.manufacturer, sc->card.product, 1001 pf->function, pf->number); 1002 device_printf(bus, " CIS info: "); 1003 for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++) 1004 printf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]); 1005 printf("\n"); 1006 return; 1007 } 1008 1009 static int 1010 pccard_child_location_str(device_t bus, device_t child, char *buf, 1011 size_t buflen) 1012 { 1013 struct pccard_ivar *devi = PCCARD_IVAR(child); 1014 struct pccard_function *pf = devi->pf; 1015 1016 snprintf(buf, buflen, "function=%d", pf->number); 1017 return (0); 1018 } 1019 1020 /* XXX Maybe this should be in subr_bus? */ 1021 static void 1022 pccard_safe_quote(char *dst, const char *src, size_t len) 1023 { 1024 char *walker = dst, *ep = dst + len - 1; 1025 1026 if (len == 0) 1027 return; 1028 while (src != NULL && walker < ep) 1029 { 1030 if (*src == '"') { 1031 if (ep - walker < 2) 1032 break; 1033 *walker++ = '\\'; 1034 } 1035 *walker++ = *src++; 1036 } 1037 *walker = '\0'; 1038 } 1039 1040 static int 1041 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf, 1042 size_t buflen) 1043 { 1044 struct pccard_ivar *devi = PCCARD_IVAR(child); 1045 struct pccard_function *pf = devi->pf; 1046 struct pccard_softc *sc = PCCARD_SOFTC(bus); 1047 char cis0[128], cis1[128]; 1048 1049 pccard_safe_quote(cis0, sc->card.cis1_info[0], sizeof(cis0)); 1050 pccard_safe_quote(cis1, sc->card.cis1_info[1], sizeof(cis1)); 1051 snprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x " 1052 "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d", 1053 sc->card.manufacturer, sc->card.product, cis0, cis1, pf->function); 1054 return (0); 1055 } 1056 1057 static int 1058 pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result) 1059 { 1060 struct pccard_ivar *devi = PCCARD_IVAR(child); 1061 struct pccard_function *pf = devi->pf; 1062 struct pccard_softc *sc = PCCARD_SOFTC(bus); 1063 1064 if (!pf) 1065 panic("No pccard function pointer"); 1066 switch (which) { 1067 default: 1068 return (EINVAL); 1069 case PCCARD_IVAR_FUNCE_DISK: 1070 *(uint16_t *)result = pf->pf_funce_disk_interface | 1071 (pf->pf_funce_disk_power << 8); 1072 break; 1073 case PCCARD_IVAR_ETHADDR: 1074 bcopy(pf->pf_funce_lan_nid, result, ETHER_ADDR_LEN); 1075 break; 1076 case PCCARD_IVAR_VENDOR: 1077 *(uint32_t *)result = sc->card.manufacturer; 1078 break; 1079 case PCCARD_IVAR_PRODUCT: 1080 *(uint32_t *)result = sc->card.product; 1081 break; 1082 case PCCARD_IVAR_PRODEXT: 1083 *(uint16_t *)result = sc->card.prodext; 1084 break; 1085 case PCCARD_IVAR_FUNCTION: 1086 *(uint32_t *)result = pf->function; 1087 break; 1088 case PCCARD_IVAR_FUNCTION_NUMBER: 1089 *(uint32_t *)result = pf->number; 1090 break; 1091 case PCCARD_IVAR_VENDOR_STR: 1092 *(const char **)result = sc->card.cis1_info[0]; 1093 break; 1094 case PCCARD_IVAR_PRODUCT_STR: 1095 *(const char **)result = sc->card.cis1_info[1]; 1096 break; 1097 case PCCARD_IVAR_CIS3_STR: 1098 *(const char **)result = sc->card.cis1_info[2]; 1099 break; 1100 case PCCARD_IVAR_CIS4_STR: 1101 *(const char **)result = sc->card.cis1_info[3]; 1102 break; 1103 } 1104 return (0); 1105 } 1106 1107 static void 1108 pccard_driver_added(device_t dev, driver_t *driver) 1109 { 1110 struct pccard_softc *sc = PCCARD_SOFTC(dev); 1111 struct pccard_function *pf; 1112 device_t child; 1113 1114 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 1115 if (STAILQ_EMPTY(&pf->cfe_head)) 1116 continue; 1117 child = pf->dev; 1118 if (device_get_state(child) != DS_NOTPRESENT) 1119 continue; 1120 pccard_probe_and_attach_child(dev, child, pf); 1121 } 1122 return; 1123 } 1124 1125 static struct resource * 1126 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid, 1127 u_long start, u_long end, u_long count, u_int flags) 1128 { 1129 struct pccard_ivar *dinfo; 1130 struct resource_list_entry *rle = 0; 1131 int passthrough = (device_get_parent(child) != dev); 1132 int isdefault = (start == 0 && end == ~0UL && count == 1); 1133 struct resource *r = NULL; 1134 1135 /* XXX I'm no longer sure this is right */ 1136 if (passthrough) { 1137 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 1138 type, rid, start, end, count, flags)); 1139 } 1140 1141 dinfo = device_get_ivars(child); 1142 rle = resource_list_find(&dinfo->resources, type, *rid); 1143 1144 if (rle == NULL && isdefault) 1145 return (NULL); /* no resource of that type/rid */ 1146 if (rle == NULL || rle->res == NULL) { 1147 /* XXX Need to adjust flags */ 1148 r = bus_alloc_resource(dev, type, rid, start, end, 1149 count, flags); 1150 if (r == NULL) 1151 goto bad; 1152 resource_list_add(&dinfo->resources, type, *rid, 1153 rman_get_start(r), rman_get_end(r), count); 1154 rle = resource_list_find(&dinfo->resources, type, *rid); 1155 if (!rle) 1156 goto bad; 1157 rle->res = r; 1158 } 1159 /* 1160 * If dev doesn't own the device, then we can't give this device 1161 * out. 1162 */ 1163 if (rman_get_device(rle->res) != dev) 1164 return (NULL); 1165 rman_set_device(rle->res, child); 1166 if (flags & RF_ACTIVE) 1167 BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res); 1168 return (rle->res); 1169 bad:; 1170 device_printf(dev, "WARNING: Resource not reserved by pccard\n"); 1171 return (NULL); 1172 } 1173 1174 static int 1175 pccard_release_resource(device_t dev, device_t child, int type, int rid, 1176 struct resource *r) 1177 { 1178 struct pccard_ivar *dinfo; 1179 int passthrough = (device_get_parent(child) != dev); 1180 struct resource_list_entry *rle = 0; 1181 1182 if (passthrough) 1183 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 1184 type, rid, r); 1185 1186 dinfo = device_get_ivars(child); 1187 1188 rle = resource_list_find(&dinfo->resources, type, rid); 1189 1190 if (!rle) { 1191 device_printf(dev, "Allocated resource not found, " 1192 "%d %#x %#lx %#lx\n", 1193 type, rid, rman_get_start(r), rman_get_size(r)); 1194 return ENOENT; 1195 } 1196 if (!rle->res) { 1197 device_printf(dev, "Allocated resource not recorded\n"); 1198 return ENOENT; 1199 } 1200 /* 1201 * Deactivate the resource (since it is being released), and 1202 * assign it to the bus. 1203 */ 1204 BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res); 1205 rman_set_device(rle->res, dev); 1206 return (0); 1207 } 1208 1209 static void 1210 pccard_child_detached(device_t parent, device_t dev) 1211 { 1212 struct pccard_ivar *ivar = PCCARD_IVAR(dev); 1213 struct pccard_function *pf = ivar->pf; 1214 1215 pccard_function_disable(pf); 1216 } 1217 1218 static int 1219 pccard_filter(void *arg) 1220 { 1221 struct pccard_function *pf = (struct pccard_function*) arg; 1222 int reg; 1223 int doisr = 1; 1224 1225 /* 1226 * MFC cards know if they interrupted, so we have to ack the 1227 * interrupt and call the ISR. Non-MFC cards don't have these 1228 * bits, so they always get called. Many non-MFC cards have 1229 * this bit set always upon read, but some do not. 1230 * 1231 * We always ack the interrupt, even if there's no ISR 1232 * for the card. This is done on the theory that acking 1233 * the interrupt will pacify the card enough to keep an 1234 * interrupt storm from happening. Of course this won't 1235 * help in the non-MFC case. 1236 * 1237 * This has no impact for MPSAFEness of the client drivers. 1238 * We register this with whatever flags the intr_handler 1239 * was registered with. All these functions are MPSAFE. 1240 */ 1241 if (pccard_mfc(pf->sc)) { 1242 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS); 1243 if (reg & PCCARD_CCR_STATUS_INTR) 1244 pccard_ccr_write(pf, PCCARD_CCR_STATUS, 1245 reg & ~PCCARD_CCR_STATUS_INTR); 1246 else 1247 doisr = 0; 1248 } 1249 if (doisr) { 1250 if (pf->intr_filter != NULL) 1251 return (pf->intr_filter(pf->intr_handler_arg)); 1252 return (FILTER_SCHEDULE_THREAD); 1253 } 1254 return (FILTER_STRAY); 1255 } 1256 1257 static void 1258 pccard_intr(void *arg) 1259 { 1260 struct pccard_function *pf = (struct pccard_function*) arg; 1261 1262 pf->intr_handler(pf->intr_handler_arg); 1263 } 1264 1265 static int 1266 pccard_setup_intr(device_t dev, device_t child, struct resource *irq, 1267 int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg, 1268 void **cookiep) 1269 { 1270 struct pccard_softc *sc = PCCARD_SOFTC(dev); 1271 struct pccard_ivar *ivar = PCCARD_IVAR(child); 1272 struct pccard_function *pf = ivar->pf; 1273 int err; 1274 1275 if (pf->intr_filter != NULL || pf->intr_handler != NULL) 1276 panic("Only one interrupt handler per function allowed"); 1277 err = bus_generic_setup_intr(dev, child, irq, flags, pccard_filter, 1278 intr ? pccard_intr : NULL, pf, cookiep); 1279 if (err != 0) 1280 return (err); 1281 pf->intr_filter = filt; 1282 pf->intr_handler = intr; 1283 pf->intr_handler_arg = arg; 1284 pf->intr_handler_cookie = *cookiep; 1285 if (pccard_mfc(sc)) { 1286 pccard_ccr_write(pf, PCCARD_CCR_OPTION, 1287 pccard_ccr_read(pf, PCCARD_CCR_OPTION) | 1288 PCCARD_CCR_OPTION_IREQ_ENABLE); 1289 } 1290 return (0); 1291 } 1292 1293 static int 1294 pccard_teardown_intr(device_t dev, device_t child, struct resource *r, 1295 void *cookie) 1296 { 1297 struct pccard_softc *sc = PCCARD_SOFTC(dev); 1298 struct pccard_ivar *ivar = PCCARD_IVAR(child); 1299 struct pccard_function *pf = ivar->pf; 1300 int ret; 1301 1302 if (pccard_mfc(sc)) { 1303 pccard_ccr_write(pf, PCCARD_CCR_OPTION, 1304 pccard_ccr_read(pf, PCCARD_CCR_OPTION) & 1305 ~PCCARD_CCR_OPTION_IREQ_ENABLE); 1306 } 1307 ret = bus_generic_teardown_intr(dev, child, r, cookie); 1308 if (ret == 0) { 1309 pf->intr_handler = NULL; 1310 pf->intr_handler_arg = NULL; 1311 pf->intr_handler_cookie = NULL; 1312 } 1313 1314 return (ret); 1315 } 1316 1317 static int 1318 pccard_activate_resource(device_t brdev, device_t child, int type, int rid, 1319 struct resource *r) 1320 { 1321 struct pccard_ivar *ivar = PCCARD_IVAR(child); 1322 struct pccard_function *pf = ivar->pf; 1323 1324 switch(type) { 1325 case SYS_RES_IOPORT: 1326 /* 1327 * We need to adjust IOBASE[01] and IOSIZE if we're an MFC 1328 * card. 1329 */ 1330 if (pccard_mfc(pf->sc)) 1331 pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0, 1332 rman_get_size(r)); 1333 break; 1334 default: 1335 break; 1336 } 1337 return (bus_generic_activate_resource(brdev, child, type, rid, r)); 1338 } 1339 1340 static int 1341 pccard_deactivate_resource(device_t brdev, device_t child, int type, 1342 int rid, struct resource *r) 1343 { 1344 /* XXX undo pccard_activate_resource? XXX */ 1345 return (bus_generic_deactivate_resource(brdev, child, type, rid, r)); 1346 } 1347 1348 static int 1349 pccard_attr_read_impl(device_t brdev, device_t child, uint32_t offset, 1350 uint8_t *val) 1351 { 1352 struct pccard_ivar *devi = PCCARD_IVAR(child); 1353 struct pccard_function *pf = devi->pf; 1354 1355 /* 1356 * Optimization. Most of the time, devices want to access 1357 * the same page of the attribute memory that the CCR is in. 1358 * We take advantage of this fact here. 1359 */ 1360 if (offset / PCCARD_MEM_PAGE_SIZE == 1361 pf->ccr_base / PCCARD_MEM_PAGE_SIZE) 1362 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, 1363 offset % PCCARD_MEM_PAGE_SIZE); 1364 else { 1365 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset, 1366 &offset); 1367 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset); 1368 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base, 1369 &offset); 1370 } 1371 return 0; 1372 } 1373 1374 static int 1375 pccard_attr_write_impl(device_t brdev, device_t child, uint32_t offset, 1376 uint8_t val) 1377 { 1378 struct pccard_ivar *devi = PCCARD_IVAR(child); 1379 struct pccard_function *pf = devi->pf; 1380 1381 /* 1382 * Optimization. Most of the time, devices want to access 1383 * the same page of the attribute memory that the CCR is in. 1384 * We take advantage of this fact here. 1385 */ 1386 if (offset / PCCARD_MEM_PAGE_SIZE == 1387 pf->ccr_base / PCCARD_MEM_PAGE_SIZE) 1388 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, 1389 offset % PCCARD_MEM_PAGE_SIZE, val); 1390 else { 1391 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset, 1392 &offset); 1393 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset, val); 1394 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base, 1395 &offset); 1396 } 1397 1398 return 0; 1399 } 1400 1401 static int 1402 pccard_ccr_read_impl(device_t brdev, device_t child, uint32_t offset, 1403 uint8_t *val) 1404 { 1405 struct pccard_ivar *devi = PCCARD_IVAR(child); 1406 1407 *val = pccard_ccr_read(devi->pf, offset); 1408 DEVPRINTF((child, "ccr_read of %#x (%#x) is %#x\n", offset, 1409 devi->pf->pf_ccr_offset, *val)); 1410 return 0; 1411 } 1412 1413 static int 1414 pccard_ccr_write_impl(device_t brdev, device_t child, uint32_t offset, 1415 uint8_t val) 1416 { 1417 struct pccard_ivar *devi = PCCARD_IVAR(child); 1418 struct pccard_function *pf = devi->pf; 1419 1420 /* 1421 * Can't use pccard_ccr_write since client drivers may access 1422 * registers not contained in the 'mask' if they are non-standard. 1423 */ 1424 DEVPRINTF((child, "ccr_write of %#x to %#x (%#x)\n", val, offset, 1425 devi->pf->pf_ccr_offset)); 1426 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + offset, 1427 val); 1428 return 0; 1429 } 1430 1431 1432 static device_method_t pccard_methods[] = { 1433 /* Device interface */ 1434 DEVMETHOD(device_probe, pccard_probe), 1435 DEVMETHOD(device_attach, pccard_attach), 1436 DEVMETHOD(device_detach, pccard_detach), 1437 DEVMETHOD(device_shutdown, bus_generic_shutdown), 1438 DEVMETHOD(device_suspend, pccard_suspend), 1439 DEVMETHOD(device_resume, pccard_resume), 1440 1441 /* Bus interface */ 1442 DEVMETHOD(bus_print_child, pccard_print_child), 1443 DEVMETHOD(bus_driver_added, pccard_driver_added), 1444 DEVMETHOD(bus_child_detached, pccard_child_detached), 1445 DEVMETHOD(bus_alloc_resource, pccard_alloc_resource), 1446 DEVMETHOD(bus_release_resource, pccard_release_resource), 1447 DEVMETHOD(bus_activate_resource, pccard_activate_resource), 1448 DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource), 1449 DEVMETHOD(bus_setup_intr, pccard_setup_intr), 1450 DEVMETHOD(bus_teardown_intr, pccard_teardown_intr), 1451 DEVMETHOD(bus_set_resource, pccard_set_resource), 1452 DEVMETHOD(bus_get_resource, pccard_get_resource), 1453 DEVMETHOD(bus_delete_resource, pccard_delete_resource), 1454 DEVMETHOD(bus_probe_nomatch, pccard_probe_nomatch), 1455 DEVMETHOD(bus_read_ivar, pccard_read_ivar), 1456 DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str), 1457 DEVMETHOD(bus_child_location_str, pccard_child_location_str), 1458 1459 /* Card Interface */ 1460 DEVMETHOD(card_set_res_flags, pccard_set_res_flags), 1461 DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset), 1462 DEVMETHOD(card_attach_card, pccard_attach_card), 1463 DEVMETHOD(card_detach_card, pccard_detach_card), 1464 DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup), 1465 DEVMETHOD(card_cis_scan, pccard_scan_cis), 1466 DEVMETHOD(card_attr_read, pccard_attr_read_impl), 1467 DEVMETHOD(card_attr_write, pccard_attr_write_impl), 1468 DEVMETHOD(card_ccr_read, pccard_ccr_read_impl), 1469 DEVMETHOD(card_ccr_write, pccard_ccr_write_impl), 1470 1471 { 0, 0 } 1472 }; 1473 1474 static driver_t pccard_driver = { 1475 "pccard", 1476 pccard_methods, 1477 sizeof(struct pccard_softc) 1478 }; 1479 1480 devclass_t pccard_devclass; 1481 1482 /* Maybe we need to have a slot device? */ 1483 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0); 1484 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0); 1485 MODULE_VERSION(pccard, 1);
Cache object: ff4a293b066d7008fea1d9525d202665
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