pccard.c revision 296336
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: head/sys/dev/pccard/pccard.c 296336 2016-03-03 05:07:35Z jhibbits $"); 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 */ 62static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters"); 63 64int pccard_debug = 0; 65SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RWTUN, 66 &pccard_debug, 0, 67 "pccard debug"); 68 69int pccard_cis_debug = 0; 70SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RWTUN, 71 &pccard_cis_debug, 0, "pccard CIS debug"); 72 73#ifdef PCCARDDEBUG 74#define DPRINTF(arg) if (pccard_debug) printf arg 75#define DEVPRINTF(arg) if (pccard_debug) device_printf arg 76#define PRVERBOSE(arg) printf arg 77#define DEVPRVERBOSE(arg) device_printf arg 78#else 79#define DPRINTF(arg) 80#define DEVPRINTF(arg) 81#define PRVERBOSE(arg) if (bootverbose) printf arg 82#define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg 83#endif 84 85static int pccard_ccr_read(struct pccard_function *pf, int ccr); 86static void pccard_ccr_write(struct pccard_function *pf, int ccr, int val); 87static int pccard_attach_card(device_t dev); 88static int pccard_detach_card(device_t dev); 89static void pccard_function_init(struct pccard_function *pf, int entry); 90static void pccard_function_free(struct pccard_function *pf); 91static int pccard_function_enable(struct pccard_function *pf); 92static void pccard_function_disable(struct pccard_function *pf); 93static int pccard_probe(device_t dev); 94static int pccard_attach(device_t dev); 95static int pccard_detach(device_t dev); 96static void pccard_print_resources(struct resource_list *rl, 97 const char *name, int type, int count, const char *format); 98static int pccard_print_child(device_t dev, device_t child); 99static int pccard_set_resource(device_t dev, device_t child, int type, 100 int rid, rman_res_t start, rman_res_t count); 101static int pccard_get_resource(device_t dev, device_t child, int type, 102 int rid, rman_res_t *startp, rman_res_t *countp); 103static void pccard_delete_resource(device_t dev, device_t child, int type, 104 int rid); 105static int pccard_set_res_flags(device_t dev, device_t child, int type, 106 int rid, u_long flags); 107static int pccard_set_memory_offset(device_t dev, device_t child, int rid, 108 uint32_t offset, uint32_t *deltap); 109static int pccard_probe_and_attach_child(device_t dev, device_t child, 110 struct pccard_function *pf); 111static void pccard_probe_nomatch(device_t cbdev, device_t child); 112static int pccard_read_ivar(device_t bus, device_t child, int which, 113 uintptr_t *result); 114static void pccard_driver_added(device_t dev, driver_t *driver); 115static struct resource *pccard_alloc_resource(device_t dev, 116 device_t child, int type, int *rid, rman_res_t start, 117 rman_res_t end, rman_res_t count, u_int flags); 118static int pccard_release_resource(device_t dev, device_t child, int type, 119 int rid, struct resource *r); 120static void pccard_child_detached(device_t parent, device_t dev); 121static int pccard_filter(void *arg); 122static void pccard_intr(void *arg); 123static int pccard_setup_intr(device_t dev, device_t child, 124 struct resource *irq, int flags, driver_filter_t *filt, 125 driver_intr_t *intr, void *arg, void **cookiep); 126static int pccard_teardown_intr(device_t dev, device_t child, 127 struct resource *r, void *cookie); 128 129static const struct pccard_product * 130pccard_do_product_lookup(device_t bus, device_t dev, 131 const struct pccard_product *tab, size_t ent_size, 132 pccard_product_match_fn matchfn); 133 134 135static int 136pccard_ccr_read(struct pccard_function *pf, int ccr) 137{ 138 return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, 139 pf->pf_ccr_offset + ccr)); 140} 141 142static void 143pccard_ccr_write(struct pccard_function *pf, int ccr, int val) 144{ 145 if ((pf->ccr_mask) & (1 << (ccr / 2))) { 146 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, 147 pf->pf_ccr_offset + ccr, val); 148 } 149} 150 151static int 152pccard_set_default_descr(device_t dev) 153{ 154 const char *vendorstr, *prodstr; 155 uint32_t vendor, prod; 156 char *str; 157 158 if (pccard_get_vendor_str(dev, &vendorstr)) 159 return (0); 160 if (pccard_get_product_str(dev, &prodstr)) 161 return (0); 162 if (vendorstr != NULL && prodstr != NULL) { 163 str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF, 164 M_WAITOK); 165 sprintf(str, "%s %s", vendorstr, prodstr); 166 device_set_desc_copy(dev, str); 167 free(str, M_DEVBUF); 168 } else { 169 if (pccard_get_vendor(dev, &vendor)) 170 return (0); 171 if (pccard_get_product(dev, &prod)) 172 return (0); 173 str = malloc(100, M_DEVBUF, M_WAITOK); 174 snprintf(str, 100, "vendor=%#x product=%#x", vendor, prod); 175 device_set_desc_copy(dev, str); 176 free(str, M_DEVBUF); 177 } 178 return (0); 179} 180 181static int 182pccard_attach_card(device_t dev) 183{ 184 struct pccard_softc *sc = PCCARD_SOFTC(dev); 185 struct pccard_function *pf; 186 struct pccard_ivar *ivar; 187 device_t child; 188 int i; 189 190 if (!STAILQ_EMPTY(&sc->card.pf_head)) { 191 if (bootverbose || pccard_debug) 192 device_printf(dev, "Card already inserted.\n"); 193 } 194 195 DEVPRINTF((dev, "chip_socket_enable\n")); 196 POWER_ENABLE_SOCKET(device_get_parent(dev), dev); 197 198 DEVPRINTF((dev, "read_cis\n")); 199 pccard_read_cis(sc); 200 201 DEVPRINTF((dev, "check_cis_quirks\n")); 202 pccard_check_cis_quirks(dev); 203 204 /* 205 * bail now if the card has no functions, or if there was an error in 206 * the cis. 207 */ 208 209 if (sc->card.error) { 210 device_printf(dev, "CARD ERROR!\n"); 211 return (1); 212 } 213 if (STAILQ_EMPTY(&sc->card.pf_head)) { 214 device_printf(dev, "Card has no functions!\n"); 215 return (1); 216 } 217 218 if (bootverbose || pccard_debug) 219 pccard_print_cis(dev); 220 221 DEVPRINTF((dev, "functions scanning\n")); 222 i = -1; 223 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 224 i++; 225 if (STAILQ_EMPTY(&pf->cfe_head)) { 226 device_printf(dev, 227 "Function %d has no config entries.!\n", i); 228 continue; 229 } 230 pf->sc = sc; 231 pf->cfe = NULL; 232 pf->dev = NULL; 233 } 234 DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1, 235 pccard_mfc(sc))); 236 237 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 238 if (STAILQ_EMPTY(&pf->cfe_head)) 239 continue; 240 ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF, 241 M_WAITOK | M_ZERO); 242 resource_list_init(&ivar->resources); 243 child = device_add_child(dev, NULL, -1); 244 device_set_ivars(child, ivar); 245 ivar->pf = pf; 246 pf->dev = child; 247 pccard_probe_and_attach_child(dev, child, pf); 248 } 249 return (0); 250} 251 252static int 253pccard_probe_and_attach_child(device_t dev, device_t child, 254 struct pccard_function *pf) 255{ 256 struct pccard_softc *sc = PCCARD_SOFTC(dev); 257 int error; 258 259 /* 260 * In NetBSD, the drivers are responsible for activating each 261 * function of a card and selecting the config to use. In 262 * FreeBSD, all that's done automatically in the typical lazy 263 * way we do device resoruce allocation (except we pick the 264 * cfe up front). This is the biggest depature from the 265 * inherited NetBSD model, apart from the FreeBSD resource code. 266 * 267 * This seems to work well in practice for most cards. 268 * However, there are two cases that are problematic. If a 269 * driver wishes to pick and chose which config entry to use, 270 * then this method falls down. These are usually older 271 * cards. In addition, there are some cards that have 272 * multiple hardware units on the cards, but presents only one 273 * CIS chain. These cards are combination cards, but only one 274 * of these units can be on at a time. 275 * 276 * To overcome this limitation, while preserving the basic 277 * model, the probe routine can select a cfe and try to 278 * activate it. If that succeeds, then we'll keep track of 279 * and let that information persist until we attach the card. 280 * Probe routines that do this MUST return 0, and cannot 281 * participate in the bidding process for a device. This 282 * seems harsh until you realize that if a probe routine knows 283 * enough to override the cfe we pick, then chances are very 284 * very good that it is the only driver that could hope to 285 * cope with the card. Bidding is for generic drivers, and 286 * while some of them may also match, none of them will do 287 * configuration override. 288 */ 289 error = device_probe(child); 290 if (error != 0) 291 goto out; 292 pccard_function_init(pf, -1); 293 if (sc->sc_enabled_count == 0) 294 POWER_ENABLE_SOCKET(device_get_parent(dev), dev); 295 if (pccard_function_enable(pf) == 0 && 296 pccard_set_default_descr(child) == 0 && 297 device_attach(child) == 0) { 298 DEVPRINTF((sc->dev, "function %d CCR at %d offset %#x " 299 "mask %#x: %#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n", 300 pf->number, pf->pf_ccr_window, pf->pf_ccr_offset, 301 pf->ccr_mask, pccard_ccr_read(pf, 0x00), 302 pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04), 303 pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A), 304 pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E), 305 pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12))); 306 return (0); 307 } 308 error = ENXIO; 309out:; 310 /* 311 * Probe may fail AND also try to select a cfe, if so, free 312 * it. This is how we do cfe override. Or the attach fails. 313 * Either way, we have to clean up. 314 */ 315 if (pf->cfe != NULL) 316 pccard_function_disable(pf); 317 pf->cfe = NULL; 318 pccard_function_free(pf); 319 return error; 320} 321 322static int 323pccard_detach_card(device_t dev) 324{ 325 struct pccard_softc *sc = PCCARD_SOFTC(dev); 326 struct pccard_function *pf; 327 struct pccard_config_entry *cfe; 328 struct pccard_ivar *devi; 329 int state; 330 331 /* 332 * We are running on either the PCCARD socket's event thread 333 * or in user context detaching a device by user request. 334 */ 335 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 336 if (pf->dev == NULL) 337 continue; 338 state = device_get_state(pf->dev); 339 if (state == DS_ATTACHED || state == DS_BUSY) 340 device_detach(pf->dev); 341 if (pf->cfe != NULL) 342 pccard_function_disable(pf); 343 pccard_function_free(pf); 344 devi = PCCARD_IVAR(pf->dev); 345 device_delete_child(dev, pf->dev); 346 free(devi, M_DEVBUF); 347 } 348 if (sc->sc_enabled_count == 0) 349 POWER_DISABLE_SOCKET(device_get_parent(dev), dev); 350 351 while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) { 352 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) { 353 STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list); 354 free(cfe, M_DEVBUF); 355 } 356 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list); 357 free(pf, M_DEVBUF); 358 } 359 STAILQ_INIT(&sc->card.pf_head); 360 return (0); 361} 362 363static const struct pccard_product * 364pccard_do_product_lookup(device_t bus, device_t dev, 365 const struct pccard_product *tab, size_t ent_size, 366 pccard_product_match_fn matchfn) 367{ 368 const struct pccard_product *ent; 369 int matches; 370 uint32_t vendor; 371 uint32_t prod; 372 const char *vendorstr; 373 const char *prodstr; 374 const char *cis3str; 375 const char *cis4str; 376 377#ifdef DIAGNOSTIC 378 if (sizeof *ent > ent_size) 379 panic("pccard_product_lookup: bogus ent_size %jd", 380 (intmax_t) ent_size); 381#endif 382 if (pccard_get_vendor(dev, &vendor)) 383 return (NULL); 384 if (pccard_get_product(dev, &prod)) 385 return (NULL); 386 if (pccard_get_vendor_str(dev, &vendorstr)) 387 return (NULL); 388 if (pccard_get_product_str(dev, &prodstr)) 389 return (NULL); 390 if (pccard_get_cis3_str(dev, &cis3str)) 391 return (NULL); 392 if (pccard_get_cis4_str(dev, &cis4str)) 393 return (NULL); 394 for (ent = tab; ent->pp_vendor != 0; ent = 395 (const struct pccard_product *) ((const char *) ent + ent_size)) { 396 matches = 1; 397 if (ent->pp_vendor == PCCARD_VENDOR_ANY && 398 ent->pp_product == PCCARD_PRODUCT_ANY && 399 ent->pp_cis[0] == NULL && 400 ent->pp_cis[1] == NULL) { 401 if (ent->pp_name) 402 device_printf(dev, 403 "Total wildcard entry ignored for %s\n", 404 ent->pp_name); 405 continue; 406 } 407 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY && 408 vendor != ent->pp_vendor) 409 matches = 0; 410 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY && 411 prod != ent->pp_product) 412 matches = 0; 413 if (matches && ent->pp_cis[0] && 414 (vendorstr == NULL || 415 strcmp(ent->pp_cis[0], vendorstr) != 0)) 416 matches = 0; 417 if (matches && ent->pp_cis[1] && 418 (prodstr == NULL || 419 strcmp(ent->pp_cis[1], prodstr) != 0)) 420 matches = 0; 421 if (matches && ent->pp_cis[2] && 422 (cis3str == NULL || 423 strcmp(ent->pp_cis[2], cis3str) != 0)) 424 matches = 0; 425 if (matches && ent->pp_cis[3] && 426 (cis4str == NULL || 427 strcmp(ent->pp_cis[3], cis4str) != 0)) 428 matches = 0; 429 if (matchfn != NULL) 430 matches = (*matchfn)(dev, ent, matches); 431 if (matches) 432 return (ent); 433 } 434 return (NULL); 435} 436 437/** 438 * @brief pccard_select_cfe 439 * 440 * Select a cfe entry to use. Should be called from the pccard's probe 441 * routine after it knows for sure that it wants this card. 442 * 443 * XXX I think we need to make this symbol be static, ala the kobj stuff 444 * we do for everything else. This is a quick hack. 445 */ 446int 447pccard_select_cfe(device_t dev, int entry) 448{ 449 struct pccard_ivar *devi = PCCARD_IVAR(dev); 450 struct pccard_function *pf = devi->pf; 451 452 pccard_function_init(pf, entry); 453 return (pf->cfe ? 0 : ENOMEM); 454} 455 456/* 457 * Initialize a PCCARD function. May be called as long as the function is 458 * disabled. 459 * 460 * Note: pccard_function_init should not keep resources allocated. It should 461 * only set them up ala isa pnp, set the values in the rl lists, and return. 462 * Any resource held after pccard_function_init is called is a bug. However, 463 * the bus routines to get the resources also assume that pccard_function_init 464 * does this, so they need to be fixed too. 465 */ 466static void 467pccard_function_init(struct pccard_function *pf, int entry) 468{ 469 struct pccard_config_entry *cfe; 470 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); 471 struct resource_list *rl = &devi->resources; 472 struct resource_list_entry *rle; 473 struct resource *r = 0; 474 struct pccard_ce_iospace *ios; 475 struct pccard_ce_memspace *mems; 476 device_t bus; 477 rman_res_t 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 ios = cfe->iospace + i; 505 start = ios->start; 506 if (start) 507 end = start + ios->length - 1; 508 else 509 end = ~0; 510 DEVPRINTF((bus, "I/O rid %d start %#lx end %#lx\n", 511 i, start, end)); 512 rid = i; 513 len = ios->length; 514 r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid, 515 start, end, len, rman_make_alignment_flags(len)); 516 if (r == NULL) { 517 DEVPRINTF((bus, "I/O rid %d failed\n", i)); 518 goto not_this_one; 519 } 520 rle = resource_list_add(rl, SYS_RES_IOPORT, 521 rid, rman_get_start(r), rman_get_end(r), len); 522 if (rle == NULL) 523 panic("Cannot add resource rid %d IOPORT", rid); 524 rle->res = r; 525 spaces++; 526 } 527 for (i = 0; i < cfe->num_memspace; i++) { 528 mems = cfe->memspace + i; 529 start = mems->cardaddr + mems->hostaddr; 530 if (start) 531 end = start + mems->length - 1; 532 else 533 end = ~0; 534 DEVPRINTF((bus, "Memory rid %d start %#lx end %#lx\ncardaddr %#lx hostaddr %#lx length %#lx\n", 535 i, start, end, mems->cardaddr, mems->hostaddr, 536 mems->length)); 537 rid = i; 538 len = mems->length; 539 r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid, 540 start, end, len, rman_make_alignment_flags(len)); 541 if (r == NULL) { 542 DEVPRINTF((bus, "Memory rid %d failed\n", i)); 543// goto not_this_one; 544 continue; 545 } 546 rle = resource_list_add(rl, SYS_RES_MEMORY, 547 rid, rman_get_start(r), rman_get_end(r), len); 548 if (rle == NULL) 549 panic("Cannot add resource rid %d MEM", rid); 550 rle->res = r; 551 spaces++; 552 } 553 if (spaces == 0) { 554 DEVPRINTF((bus, "Neither memory nor I/O mapped\n")); 555 goto not_this_one; 556 } 557 if (cfe->irqmask) { 558 rid = 0; 559 r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid, 560 RF_SHAREABLE); 561 if (r == NULL) { 562 DEVPRINTF((bus, "IRQ rid %d failed\n", rid)); 563 goto not_this_one; 564 } 565 rle = resource_list_add(rl, SYS_RES_IRQ, rid, 566 rman_get_start(r), rman_get_end(r), 1); 567 if (rle == NULL) 568 panic("Cannot add resource rid %d IRQ", rid); 569 rle->res = r; 570 } 571 /* If we get to here, we've allocated all we need */ 572 pf->cfe = cfe; 573 break; 574 not_this_one:; 575 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n", 576 cfe->number)); 577 resource_list_purge(rl); 578 } 579} 580 581/* 582 * Free resources allocated by pccard_function_init(), May be called as long 583 * as the function is disabled. 584 * 585 * NOTE: This function should be unnecessary. pccard_function_init should 586 * never keep resources initialized. 587 */ 588static void 589pccard_function_free(struct pccard_function *pf) 590{ 591 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); 592 struct resource_list_entry *rle; 593 594 if (pf->pf_flags & PFF_ENABLED) { 595 printf("pccard_function_free: function is enabled"); 596 return; 597 } 598 599 STAILQ_FOREACH(rle, &devi->resources, link) { 600 if (rle->res) { 601 if (rman_get_device(rle->res) != pf->sc->dev) 602 device_printf(pf->sc->dev, 603 "function_free: Resource still owned by " 604 "child, oops. " 605 "(type=%d, rid=%d, addr=%#lx)\n", 606 rle->type, rle->rid, 607 rman_get_start(rle->res)); 608 BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev), 609 pf->sc->dev, rle->type, rle->rid, rle->res); 610 rle->res = NULL; 611 } 612 } 613 resource_list_free(&devi->resources); 614} 615 616static void 617pccard_mfc_adjust_iobase(struct pccard_function *pf, rman_res_t addr, 618 rman_res_t offset, rman_res_t size) 619{ 620 bus_size_t iosize, tmp; 621 622 if (addr != 0) { 623 if (pf->pf_mfc_iomax == 0) { 624 pf->pf_mfc_iobase = addr + offset; 625 pf->pf_mfc_iomax = pf->pf_mfc_iobase + size; 626 } else { 627 /* this makes the assumption that nothing overlaps */ 628 if (pf->pf_mfc_iobase > addr + offset) 629 pf->pf_mfc_iobase = addr + offset; 630 if (pf->pf_mfc_iomax < addr + offset + size) 631 pf->pf_mfc_iomax = addr + offset + size; 632 } 633 } 634 635 tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase; 636 /* round up to nearest (2^n)-1 */ 637 for (iosize = 1; iosize < tmp; iosize <<= 1) 638 ; 639 iosize--; 640 641 DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n", 642 (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1))); 643 pccard_ccr_write(pf, PCCARD_CCR_IOBASE0, 644 pf->pf_mfc_iobase & 0xff); 645 pccard_ccr_write(pf, PCCARD_CCR_IOBASE1, 646 (pf->pf_mfc_iobase >> 8) & 0xff); 647 pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0); 648 pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0); 649 pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize); 650} 651 652/* Enable a PCCARD function */ 653static int 654pccard_function_enable(struct pccard_function *pf) 655{ 656 struct pccard_function *tmp; 657 int reg; 658 device_t dev = pf->sc->dev; 659 660 if (pf->cfe == NULL) { 661 DEVPRVERBOSE((dev, "No config entry could be allocated.\n")); 662 return (ENOMEM); 663 } 664 665 if (pf->pf_flags & PFF_ENABLED) 666 return (0); 667 pf->sc->sc_enabled_count++; 668 669 /* 670 * it's possible for different functions' CCRs to be in the same 671 * underlying page. Check for that. 672 */ 673 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { 674 if ((tmp->pf_flags & PFF_ENABLED) && 675 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && 676 ((pf->ccr_base + PCCARD_CCR_SIZE) <= 677 (tmp->ccr_base - tmp->pf_ccr_offset + 678 tmp->pf_ccr_realsize))) { 679 pf->pf_ccrt = tmp->pf_ccrt; 680 pf->pf_ccrh = tmp->pf_ccrh; 681 pf->pf_ccr_realsize = tmp->pf_ccr_realsize; 682 683 /* 684 * pf->pf_ccr_offset = (tmp->pf_ccr_offset - 685 * tmp->ccr_base) + pf->ccr_base; 686 */ 687 /* pf->pf_ccr_offset = 688 (tmp->pf_ccr_offset + pf->ccr_base) - 689 tmp->ccr_base; */ 690 pf->pf_ccr_window = tmp->pf_ccr_window; 691 break; 692 } 693 } 694 if (tmp == NULL) { 695 pf->ccr_rid = 0; 696 pf->ccr_res = bus_alloc_resource_anywhere(dev, SYS_RES_MEMORY, 697 &pf->ccr_rid, PCCARD_MEM_PAGE_SIZE, RF_ACTIVE); 698 if (!pf->ccr_res) 699 goto bad; 700 DEVPRINTF((dev, "ccr_res == %#lx-%#lx, base=%#x\n", 701 rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res), 702 pf->ccr_base)); 703 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY, 704 pf->ccr_rid, PCCARD_A_MEM_ATTR); 705 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev, 706 pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset); 707 pf->pf_ccrt = rman_get_bustag(pf->ccr_res); 708 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res); 709 pf->pf_ccr_realsize = 1; 710 } 711 712 reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX); 713 reg |= PCCARD_CCR_OPTION_LEVIREQ; 714 if (pccard_mfc(pf->sc)) { 715 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE | 716 PCCARD_CCR_OPTION_ADDR_DECODE); 717 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */ 718 } 719 pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg); 720 721 reg = 0; 722 if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0) 723 reg |= PCCARD_CCR_STATUS_IOIS8; 724 if (pf->cfe->flags & PCCARD_CFE_AUDIO) 725 reg |= PCCARD_CCR_STATUS_AUDIO; 726 pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg); 727 728 pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0); 729 730 if (pccard_mfc(pf->sc)) 731 pccard_mfc_adjust_iobase(pf, 0, 0, 0); 732 733#ifdef PCCARDDEBUG 734 if (pccard_debug) { 735 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { 736 device_printf(tmp->sc->dev, 737 "function %d CCR at %d offset %#x: " 738 "%#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n", 739 tmp->number, tmp->pf_ccr_window, 740 tmp->pf_ccr_offset, 741 pccard_ccr_read(tmp, 0x00), 742 pccard_ccr_read(tmp, 0x02), 743 pccard_ccr_read(tmp, 0x04), 744 pccard_ccr_read(tmp, 0x06), 745 pccard_ccr_read(tmp, 0x0A), 746 pccard_ccr_read(tmp, 0x0C), 747 pccard_ccr_read(tmp, 0x0E), 748 pccard_ccr_read(tmp, 0x10), 749 pccard_ccr_read(tmp, 0x12)); 750 } 751 } 752#endif 753 pf->pf_flags |= PFF_ENABLED; 754 return (0); 755 756 bad: 757 /* 758 * Decrement the reference count, and power down the socket, if 759 * necessary. 760 */ 761 pf->sc->sc_enabled_count--; 762 DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count)); 763 764 return (1); 765} 766 767/* Disable PCCARD function. */ 768static void 769pccard_function_disable(struct pccard_function *pf) 770{ 771 struct pccard_function *tmp; 772 device_t dev = pf->sc->dev; 773 774 if (pf->cfe == NULL) 775 panic("pccard_function_disable: function not initialized"); 776 777 if ((pf->pf_flags & PFF_ENABLED) == 0) 778 return; 779 if (pf->intr_handler != NULL) { 780 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); 781 struct resource_list_entry *rle = 782 resource_list_find(&devi->resources, SYS_RES_IRQ, 0); 783 if (rle == NULL) 784 panic("Can't disable an interrupt with no IRQ res\n"); 785 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res, 786 pf->intr_handler_cookie); 787 } 788 789 /* 790 * it's possible for different functions' CCRs to be in the same 791 * underlying page. Check for that. Note we mark us as disabled 792 * first to avoid matching ourself. 793 */ 794 795 pf->pf_flags &= ~PFF_ENABLED; 796 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { 797 if ((tmp->pf_flags & PFF_ENABLED) && 798 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && 799 ((pf->ccr_base + PCCARD_CCR_SIZE) <= 800 (tmp->ccr_base - tmp->pf_ccr_offset + 801 tmp->pf_ccr_realsize))) 802 break; 803 } 804 805 /* Not used by anyone else; unmap the CCR. */ 806 if (tmp == NULL) { 807 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid, 808 pf->ccr_res); 809 pf->ccr_res = NULL; 810 } 811 812 /* 813 * Decrement the reference count, and power down the socket, if 814 * necessary. 815 */ 816 pf->sc->sc_enabled_count--; 817} 818 819#define PCCARD_NPORT 2 820#define PCCARD_NMEM 5 821#define PCCARD_NIRQ 1 822#define PCCARD_NDRQ 0 823 824static int 825pccard_probe(device_t dev) 826{ 827 device_set_desc(dev, "16-bit PCCard bus"); 828 return (0); 829} 830 831static int 832pccard_attach(device_t dev) 833{ 834 struct pccard_softc *sc = PCCARD_SOFTC(dev); 835 int err; 836 837 sc->dev = dev; 838 sc->sc_enabled_count = 0; 839 if ((err = pccard_device_create(sc)) != 0) 840 return (err); 841 STAILQ_INIT(&sc->card.pf_head); 842 return (bus_generic_attach(dev)); 843} 844 845static int 846pccard_detach(device_t dev) 847{ 848 pccard_detach_card(dev); 849 pccard_device_destroy(device_get_softc(dev)); 850 return (0); 851} 852 853static int 854pccard_suspend(device_t self) 855{ 856 pccard_detach_card(self); 857 return (0); 858} 859 860static 861int 862pccard_resume(device_t self) 863{ 864 return (0); 865} 866 867static void 868pccard_print_resources(struct resource_list *rl, const char *name, int type, 869 int count, const char *format) 870{ 871 struct resource_list_entry *rle; 872 int printed; 873 int i; 874 875 printed = 0; 876 for (i = 0; i < count; i++) { 877 rle = resource_list_find(rl, type, i); 878 if (rle != NULL) { 879 if (printed == 0) 880 printf(" %s ", name); 881 else if (printed > 0) 882 printf(","); 883 printed++; 884 printf(format, rle->start); 885 if (rle->count > 1) { 886 printf("-"); 887 printf(format, rle->start + rle->count - 1); 888 } 889 } else if (i > 3) { 890 /* check the first few regardless */ 891 break; 892 } 893 } 894} 895 896static int 897pccard_print_child(device_t dev, device_t child) 898{ 899 struct pccard_ivar *devi = PCCARD_IVAR(child); 900 struct resource_list *rl = &devi->resources; 901 int retval = 0; 902 903 retval += bus_print_child_header(dev, child); 904 retval += printf(" at"); 905 906 if (devi != NULL) { 907 pccard_print_resources(rl, "port", SYS_RES_IOPORT, 908 PCCARD_NPORT, "%#lx"); 909 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY, 910 PCCARD_NMEM, "%#lx"); 911 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ, 912 "%ld"); 913 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ, 914 "%ld"); 915 retval += printf(" function %d config %d", devi->pf->number, 916 devi->pf->cfe->number); 917 } 918 919 retval += bus_print_child_footer(dev, child); 920 921 return (retval); 922} 923 924static int 925pccard_set_resource(device_t dev, device_t child, int type, int rid, 926 rman_res_t start, rman_res_t count) 927{ 928 struct pccard_ivar *devi = PCCARD_IVAR(child); 929 struct resource_list *rl = &devi->resources; 930 931 if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY 932 && type != SYS_RES_IRQ && type != SYS_RES_DRQ) 933 return (EINVAL); 934 if (rid < 0) 935 return (EINVAL); 936 if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT) 937 return (EINVAL); 938 if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM) 939 return (EINVAL); 940 if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ) 941 return (EINVAL); 942 if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ) 943 return (EINVAL); 944 945 resource_list_add(rl, type, rid, start, start + count - 1, count); 946 if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev, 947 type, &rid, start, start + count - 1, count, 0)) 948 return 0; 949 else 950 return ENOMEM; 951} 952 953static int 954pccard_get_resource(device_t dev, device_t child, int type, int rid, 955 rman_res_t *startp, rman_res_t *countp) 956{ 957 struct pccard_ivar *devi = PCCARD_IVAR(child); 958 struct resource_list *rl = &devi->resources; 959 struct resource_list_entry *rle; 960 961 rle = resource_list_find(rl, type, rid); 962 if (rle == NULL) 963 return (ENOENT); 964 965 if (startp != NULL) 966 *startp = rle->start; 967 if (countp != NULL) 968 *countp = rle->count; 969 970 return (0); 971} 972 973static void 974pccard_delete_resource(device_t dev, device_t child, int type, int rid) 975{ 976 struct pccard_ivar *devi = PCCARD_IVAR(child); 977 struct resource_list *rl = &devi->resources; 978 resource_list_delete(rl, type, rid); 979} 980 981static int 982pccard_set_res_flags(device_t dev, device_t child, int type, int rid, 983 u_long flags) 984{ 985 return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type, 986 rid, flags)); 987} 988 989static int 990pccard_set_memory_offset(device_t dev, device_t child, int rid, 991 uint32_t offset, uint32_t *deltap) 992 993{ 994 return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid, 995 offset, deltap)); 996} 997 998static void 999pccard_probe_nomatch(device_t bus, device_t child) 1000{ 1001 struct pccard_ivar *devi = PCCARD_IVAR(child); 1002 struct pccard_function *pf = devi->pf; 1003 struct pccard_softc *sc = PCCARD_SOFTC(bus); 1004 int i; 1005 1006 device_printf(bus, "<unknown card>"); 1007 printf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) " 1008 "at function %d\n", sc->card.manufacturer, sc->card.product, 1009 pf->function, pf->number); 1010 device_printf(bus, " CIS info: "); 1011 for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++) 1012 printf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]); 1013 printf("\n"); 1014 return; 1015} 1016 1017static int 1018pccard_child_location_str(device_t bus, device_t child, char *buf, 1019 size_t buflen) 1020{ 1021 struct pccard_ivar *devi = PCCARD_IVAR(child); 1022 struct pccard_function *pf = devi->pf; 1023 1024 snprintf(buf, buflen, "function=%d", pf->number); 1025 return (0); 1026} 1027 1028/* XXX Maybe this should be in subr_bus? */ 1029static void 1030pccard_safe_quote(char *dst, const char *src, size_t len) 1031{ 1032 char *walker = dst, *ep = dst + len - 1; 1033 1034 if (len == 0) 1035 return; 1036 while (src != NULL && walker < ep) 1037 { 1038 if (*src == '"') { 1039 if (ep - walker < 2) 1040 break; 1041 *walker++ = '\\'; 1042 } 1043 *walker++ = *src++; 1044 } 1045 *walker = '\0'; 1046} 1047 1048static int 1049pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf, 1050 size_t buflen) 1051{ 1052 struct pccard_ivar *devi = PCCARD_IVAR(child); 1053 struct pccard_function *pf = devi->pf; 1054 struct pccard_softc *sc = PCCARD_SOFTC(bus); 1055 char cis0[128], cis1[128]; 1056 1057 pccard_safe_quote(cis0, sc->card.cis1_info[0], sizeof(cis0)); 1058 pccard_safe_quote(cis1, sc->card.cis1_info[1], sizeof(cis1)); 1059 snprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x " 1060 "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d", 1061 sc->card.manufacturer, sc->card.product, cis0, cis1, pf->function); 1062 return (0); 1063} 1064 1065static int 1066pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result) 1067{ 1068 struct pccard_ivar *devi = PCCARD_IVAR(child); 1069 struct pccard_function *pf = devi->pf; 1070 struct pccard_softc *sc = PCCARD_SOFTC(bus); 1071 1072 if (!pf) 1073 panic("No pccard function pointer"); 1074 switch (which) { 1075 default: 1076 return (EINVAL); 1077 case PCCARD_IVAR_FUNCE_DISK: 1078 *(uint16_t *)result = pf->pf_funce_disk_interface | 1079 (pf->pf_funce_disk_power << 8); 1080 break; 1081 case PCCARD_IVAR_ETHADDR: 1082 bcopy(pf->pf_funce_lan_nid, result, ETHER_ADDR_LEN); 1083 break; 1084 case PCCARD_IVAR_VENDOR: 1085 *(uint32_t *)result = sc->card.manufacturer; 1086 break; 1087 case PCCARD_IVAR_PRODUCT: 1088 *(uint32_t *)result = sc->card.product; 1089 break; 1090 case PCCARD_IVAR_PRODEXT: 1091 *(uint16_t *)result = sc->card.prodext; 1092 break; 1093 case PCCARD_IVAR_FUNCTION: 1094 *(uint32_t *)result = pf->function; 1095 break; 1096 case PCCARD_IVAR_FUNCTION_NUMBER: 1097 *(uint32_t *)result = pf->number; 1098 break; 1099 case PCCARD_IVAR_VENDOR_STR: 1100 *(const char **)result = sc->card.cis1_info[0]; 1101 break; 1102 case PCCARD_IVAR_PRODUCT_STR: 1103 *(const char **)result = sc->card.cis1_info[1]; 1104 break; 1105 case PCCARD_IVAR_CIS3_STR: 1106 *(const char **)result = sc->card.cis1_info[2]; 1107 break; 1108 case PCCARD_IVAR_CIS4_STR: 1109 *(const char **)result = sc->card.cis1_info[3]; 1110 break; 1111 } 1112 return (0); 1113} 1114 1115static void 1116pccard_driver_added(device_t dev, driver_t *driver) 1117{ 1118 struct pccard_softc *sc = PCCARD_SOFTC(dev); 1119 struct pccard_function *pf; 1120 device_t child; 1121 1122 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { 1123 if (STAILQ_EMPTY(&pf->cfe_head)) 1124 continue; 1125 child = pf->dev; 1126 if (device_get_state(child) != DS_NOTPRESENT) 1127 continue; 1128 pccard_probe_and_attach_child(dev, child, pf); 1129 } 1130 return; 1131} 1132 1133static struct resource * 1134pccard_alloc_resource(device_t dev, device_t child, int type, int *rid, 1135 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 1136{ 1137 struct pccard_ivar *dinfo; 1138 struct resource_list_entry *rle = 0; 1139 int passthrough = (device_get_parent(child) != dev); 1140 int isdefault = (RMAN_IS_DEFAULT_RANGE(start, end) && count == 1); 1141 struct resource *r = NULL; 1142 1143 /* XXX I'm no longer sure this is right */ 1144 if (passthrough) { 1145 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 1146 type, rid, start, end, count, flags)); 1147 } 1148 1149 dinfo = device_get_ivars(child); 1150 rle = resource_list_find(&dinfo->resources, type, *rid); 1151 1152 if (rle == NULL && isdefault) 1153 return (NULL); /* no resource of that type/rid */ 1154 if (rle == NULL || rle->res == NULL) { 1155 /* XXX Need to adjust flags */ 1156 r = bus_alloc_resource(dev, type, rid, start, end, 1157 count, flags); 1158 if (r == NULL) 1159 goto bad; 1160 resource_list_add(&dinfo->resources, type, *rid, 1161 rman_get_start(r), rman_get_end(r), count); 1162 rle = resource_list_find(&dinfo->resources, type, *rid); 1163 if (!rle) 1164 goto bad; 1165 rle->res = r; 1166 } 1167 /* 1168 * If dev doesn't own the device, then we can't give this device 1169 * out. 1170 */ 1171 if (rman_get_device(rle->res) != dev) 1172 return (NULL); 1173 rman_set_device(rle->res, child); 1174 if (flags & RF_ACTIVE) 1175 BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res); 1176 return (rle->res); 1177bad:; 1178 device_printf(dev, "WARNING: Resource not reserved by pccard\n"); 1179 return (NULL); 1180} 1181 1182static int 1183pccard_release_resource(device_t dev, device_t child, int type, int rid, 1184 struct resource *r) 1185{ 1186 struct pccard_ivar *dinfo; 1187 int passthrough = (device_get_parent(child) != dev); 1188 struct resource_list_entry *rle = 0; 1189 1190 if (passthrough) 1191 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 1192 type, rid, r); 1193 1194 dinfo = device_get_ivars(child); 1195 1196 rle = resource_list_find(&dinfo->resources, type, rid); 1197 1198 if (!rle) { 1199 device_printf(dev, "Allocated resource not found, " 1200 "%d %#x %#lx %#lx\n", 1201 type, rid, rman_get_start(r), rman_get_size(r)); 1202 return ENOENT; 1203 } 1204 if (!rle->res) { 1205 device_printf(dev, "Allocated resource not recorded\n"); 1206 return ENOENT; 1207 } 1208 /* 1209 * Deactivate the resource (since it is being released), and 1210 * assign it to the bus. 1211 */ 1212 BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res); 1213 rman_set_device(rle->res, dev); 1214 return (0); 1215} 1216 1217static void 1218pccard_child_detached(device_t parent, device_t dev) 1219{ 1220 struct pccard_ivar *ivar = PCCARD_IVAR(dev); 1221 struct pccard_function *pf = ivar->pf; 1222 1223 pccard_function_disable(pf); 1224} 1225 1226static int 1227pccard_filter(void *arg) 1228{ 1229 struct pccard_function *pf = (struct pccard_function*) arg; 1230 int reg; 1231 int doisr = 1; 1232 1233 /* 1234 * MFC cards know if they interrupted, so we have to ack the 1235 * interrupt and call the ISR. Non-MFC cards don't have these 1236 * bits, so they always get called. Many non-MFC cards have 1237 * this bit set always upon read, but some do not. 1238 * 1239 * We always ack the interrupt, even if there's no ISR 1240 * for the card. This is done on the theory that acking 1241 * the interrupt will pacify the card enough to keep an 1242 * interrupt storm from happening. Of course this won't 1243 * help in the non-MFC case. 1244 * 1245 * This has no impact for MPSAFEness of the client drivers. 1246 * We register this with whatever flags the intr_handler 1247 * was registered with. All these functions are MPSAFE. 1248 */ 1249 if (pccard_mfc(pf->sc)) { 1250 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS); 1251 if (reg & PCCARD_CCR_STATUS_INTR) 1252 pccard_ccr_write(pf, PCCARD_CCR_STATUS, 1253 reg & ~PCCARD_CCR_STATUS_INTR); 1254 else 1255 doisr = 0; 1256 } 1257 if (doisr) { 1258 if (pf->intr_filter != NULL) 1259 return (pf->intr_filter(pf->intr_handler_arg)); 1260 return (FILTER_SCHEDULE_THREAD); 1261 } 1262 return (FILTER_STRAY); 1263} 1264 1265static void 1266pccard_intr(void *arg) 1267{ 1268 struct pccard_function *pf = (struct pccard_function*) arg; 1269 1270 pf->intr_handler(pf->intr_handler_arg); 1271} 1272 1273static int 1274pccard_setup_intr(device_t dev, device_t child, struct resource *irq, 1275 int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg, 1276 void **cookiep) 1277{ 1278 struct pccard_softc *sc = PCCARD_SOFTC(dev); 1279 struct pccard_ivar *ivar = PCCARD_IVAR(child); 1280 struct pccard_function *pf = ivar->pf; 1281 int err; 1282 1283 if (pf->intr_filter != NULL || pf->intr_handler != NULL) 1284 panic("Only one interrupt handler per function allowed"); 1285 err = bus_generic_setup_intr(dev, child, irq, flags, pccard_filter, 1286 intr ? pccard_intr : NULL, pf, cookiep); 1287 if (err != 0) 1288 return (err); 1289 pf->intr_filter = filt; 1290 pf->intr_handler = intr; 1291 pf->intr_handler_arg = arg; 1292 pf->intr_handler_cookie = *cookiep; 1293 if (pccard_mfc(sc)) { 1294 pccard_ccr_write(pf, PCCARD_CCR_OPTION, 1295 pccard_ccr_read(pf, PCCARD_CCR_OPTION) | 1296 PCCARD_CCR_OPTION_IREQ_ENABLE); 1297 } 1298 return (0); 1299} 1300 1301static int 1302pccard_teardown_intr(device_t dev, device_t child, struct resource *r, 1303 void *cookie) 1304{ 1305 struct pccard_softc *sc = PCCARD_SOFTC(dev); 1306 struct pccard_ivar *ivar = PCCARD_IVAR(child); 1307 struct pccard_function *pf = ivar->pf; 1308 int ret; 1309 1310 if (pccard_mfc(sc)) { 1311 pccard_ccr_write(pf, PCCARD_CCR_OPTION, 1312 pccard_ccr_read(pf, PCCARD_CCR_OPTION) & 1313 ~PCCARD_CCR_OPTION_IREQ_ENABLE); 1314 } 1315 ret = bus_generic_teardown_intr(dev, child, r, cookie); 1316 if (ret == 0) { 1317 pf->intr_handler = NULL; 1318 pf->intr_handler_arg = NULL; 1319 pf->intr_handler_cookie = NULL; 1320 } 1321 1322 return (ret); 1323} 1324 1325static int 1326pccard_activate_resource(device_t brdev, device_t child, int type, int rid, 1327 struct resource *r) 1328{ 1329 struct pccard_ivar *ivar = PCCARD_IVAR(child); 1330 struct pccard_function *pf = ivar->pf; 1331 1332 switch(type) { 1333 case SYS_RES_IOPORT: 1334 /* 1335 * We need to adjust IOBASE[01] and IOSIZE if we're an MFC 1336 * card. 1337 */ 1338 if (pccard_mfc(pf->sc)) 1339 pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0, 1340 rman_get_size(r)); 1341 break; 1342 default: 1343 break; 1344 } 1345 return (bus_generic_activate_resource(brdev, child, type, rid, r)); 1346} 1347 1348static int 1349pccard_deactivate_resource(device_t brdev, device_t child, int type, 1350 int rid, struct resource *r) 1351{ 1352 /* XXX undo pccard_activate_resource? XXX */ 1353 return (bus_generic_deactivate_resource(brdev, child, type, rid, r)); 1354} 1355 1356static int 1357pccard_attr_read_impl(device_t brdev, device_t child, uint32_t offset, 1358 uint8_t *val) 1359{ 1360 struct pccard_ivar *devi = PCCARD_IVAR(child); 1361 struct pccard_function *pf = devi->pf; 1362 1363 /* 1364 * Optimization. Most of the time, devices want to access 1365 * the same page of the attribute memory that the CCR is in. 1366 * We take advantage of this fact here. 1367 */ 1368 if (offset / PCCARD_MEM_PAGE_SIZE == 1369 pf->ccr_base / PCCARD_MEM_PAGE_SIZE) 1370 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, 1371 offset % PCCARD_MEM_PAGE_SIZE); 1372 else { 1373 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset, 1374 &offset); 1375 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset); 1376 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base, 1377 &offset); 1378 } 1379 return 0; 1380} 1381 1382static int 1383pccard_attr_write_impl(device_t brdev, device_t child, uint32_t offset, 1384 uint8_t val) 1385{ 1386 struct pccard_ivar *devi = PCCARD_IVAR(child); 1387 struct pccard_function *pf = devi->pf; 1388 1389 /* 1390 * Optimization. Most of the time, devices want to access 1391 * the same page of the attribute memory that the CCR is in. 1392 * We take advantage of this fact here. 1393 */ 1394 if (offset / PCCARD_MEM_PAGE_SIZE == 1395 pf->ccr_base / PCCARD_MEM_PAGE_SIZE) 1396 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, 1397 offset % PCCARD_MEM_PAGE_SIZE, val); 1398 else { 1399 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset, 1400 &offset); 1401 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset, val); 1402 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base, 1403 &offset); 1404 } 1405 1406 return 0; 1407} 1408 1409static int 1410pccard_ccr_read_impl(device_t brdev, device_t child, uint32_t offset, 1411 uint8_t *val) 1412{ 1413 struct pccard_ivar *devi = PCCARD_IVAR(child); 1414 1415 *val = pccard_ccr_read(devi->pf, offset); 1416 DEVPRINTF((child, "ccr_read of %#x (%#x) is %#x\n", offset, 1417 devi->pf->pf_ccr_offset, *val)); 1418 return 0; 1419} 1420 1421static int 1422pccard_ccr_write_impl(device_t brdev, device_t child, uint32_t offset, 1423 uint8_t val) 1424{ 1425 struct pccard_ivar *devi = PCCARD_IVAR(child); 1426 struct pccard_function *pf = devi->pf; 1427 1428 /* 1429 * Can't use pccard_ccr_write since client drivers may access 1430 * registers not contained in the 'mask' if they are non-standard. 1431 */ 1432 DEVPRINTF((child, "ccr_write of %#x to %#x (%#x)\n", val, offset, 1433 devi->pf->pf_ccr_offset)); 1434 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + offset, 1435 val); 1436 return 0; 1437} 1438 1439 1440static device_method_t pccard_methods[] = { 1441 /* Device interface */ 1442 DEVMETHOD(device_probe, pccard_probe), 1443 DEVMETHOD(device_attach, pccard_attach), 1444 DEVMETHOD(device_detach, pccard_detach), 1445 DEVMETHOD(device_shutdown, bus_generic_shutdown), 1446 DEVMETHOD(device_suspend, pccard_suspend), 1447 DEVMETHOD(device_resume, pccard_resume), 1448 1449 /* Bus interface */ 1450 DEVMETHOD(bus_print_child, pccard_print_child), 1451 DEVMETHOD(bus_driver_added, pccard_driver_added), 1452 DEVMETHOD(bus_child_detached, pccard_child_detached), 1453 DEVMETHOD(bus_alloc_resource, pccard_alloc_resource), 1454 DEVMETHOD(bus_release_resource, pccard_release_resource), 1455 DEVMETHOD(bus_activate_resource, pccard_activate_resource), 1456 DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource), 1457 DEVMETHOD(bus_setup_intr, pccard_setup_intr), 1458 DEVMETHOD(bus_teardown_intr, pccard_teardown_intr), 1459 DEVMETHOD(bus_set_resource, pccard_set_resource), 1460 DEVMETHOD(bus_get_resource, pccard_get_resource), 1461 DEVMETHOD(bus_delete_resource, pccard_delete_resource), 1462 DEVMETHOD(bus_probe_nomatch, pccard_probe_nomatch), 1463 DEVMETHOD(bus_read_ivar, pccard_read_ivar), 1464 DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str), 1465 DEVMETHOD(bus_child_location_str, pccard_child_location_str), 1466 1467 /* Card Interface */ 1468 DEVMETHOD(card_set_res_flags, pccard_set_res_flags), 1469 DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset), 1470 DEVMETHOD(card_attach_card, pccard_attach_card), 1471 DEVMETHOD(card_detach_card, pccard_detach_card), 1472 DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup), 1473 DEVMETHOD(card_cis_scan, pccard_scan_cis), 1474 DEVMETHOD(card_attr_read, pccard_attr_read_impl), 1475 DEVMETHOD(card_attr_write, pccard_attr_write_impl), 1476 DEVMETHOD(card_ccr_read, pccard_ccr_read_impl), 1477 DEVMETHOD(card_ccr_write, pccard_ccr_write_impl), 1478 1479 { 0, 0 } 1480}; 1481 1482static driver_t pccard_driver = { 1483 "pccard", 1484 pccard_methods, 1485 sizeof(struct pccard_softc) 1486}; 1487 1488devclass_t pccard_devclass; 1489 1490/* Maybe we need to have a slot device? */ 1491DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0); 1492DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0); 1493MODULE_VERSION(pccard, 1); 1494