Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/cardbus/cardbus.c
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1 /*- 2 * Copyright (c) 2003 M. Warner Losh. All Rights Reserved. 3 * Copyright (c) 2000,2001 Jonathan Chen. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/malloc.h> 33 #include <sys/module.h> 34 #include <sys/kernel.h> 35 #include <sys/sysctl.h> 36 37 #include <sys/bus.h> 38 #include <machine/bus.h> 39 #include <sys/rman.h> 40 #include <machine/resource.h> 41 42 #include <sys/pciio.h> 43 #include <dev/pci/pcivar.h> 44 #include <dev/pci/pcireg.h> 45 #include <dev/pci/pci_private.h> 46 47 #include <dev/cardbus/cardbusreg.h> 48 #include <dev/cardbus/cardbusvar.h> 49 #include <dev/cardbus/cardbus_cis.h> 50 #include <dev/pccard/pccard_cis.h> 51 #include <dev/pccard/pccardvar.h> 52 53 #include "power_if.h" 54 #include "pcib_if.h" 55 56 /* sysctl vars */ 57 SYSCTL_NODE(_hw, OID_AUTO, cardbus, CTLFLAG_RD, 0, "CardBus parameters"); 58 59 int cardbus_debug = 0; 60 TUNABLE_INT("hw.cardbus.debug", &cardbus_debug); 61 SYSCTL_INT(_hw_cardbus, OID_AUTO, debug, CTLFLAG_RW, 62 &cardbus_debug, 0, 63 "CardBus debug"); 64 65 int cardbus_cis_debug = 0; 66 TUNABLE_INT("hw.cardbus.cis_debug", &cardbus_cis_debug); 67 SYSCTL_INT(_hw_cardbus, OID_AUTO, cis_debug, CTLFLAG_RW, 68 &cardbus_cis_debug, 0, 69 "CardBus CIS debug"); 70 71 #define DPRINTF(a) if (cardbus_debug) printf a 72 #define DEVPRINTF(x) if (cardbus_debug) device_printf x 73 74 75 static void cardbus_add_map(device_t cbdev, device_t child, int reg); 76 static int cardbus_alloc_resources(device_t cbdev, device_t child); 77 static int cardbus_attach(device_t cbdev); 78 static int cardbus_attach_card(device_t cbdev); 79 static int cardbus_barsort(const void *a, const void *b); 80 static int cardbus_detach(device_t cbdev); 81 static int cardbus_detach_card(device_t cbdev); 82 static void cardbus_device_setup_regs(device_t brdev, int b, int s, int f, 83 pcicfgregs *cfg); 84 static void cardbus_driver_added(device_t cbdev, driver_t *driver); 85 static void cardbus_pickup_maps(device_t cbdev, device_t child); 86 static int cardbus_probe(device_t cbdev); 87 static int cardbus_read_ivar(device_t cbdev, device_t child, int which, 88 uintptr_t *result); 89 static void cardbus_release_all_resources(device_t cbdev, 90 struct cardbus_devinfo *dinfo); 91 static int cardbus_write_ivar(device_t cbdev, device_t child, int which, 92 uintptr_t value); 93 94 /* 95 * Resource allocation 96 */ 97 /* 98 * Adding a memory/io resource (sans CIS) 99 */ 100 101 static void 102 cardbus_add_map(device_t cbdev, device_t child, int reg) 103 { 104 struct cardbus_devinfo *dinfo = device_get_ivars(child); 105 struct resource_list_entry *rle; 106 uint32_t size; 107 uint32_t testval; 108 int type; 109 110 STAILQ_FOREACH(rle, &dinfo->pci.resources, link) { 111 if (rle->rid == reg) 112 return; 113 } 114 115 if (reg == CARDBUS_ROM_REG) 116 testval = CARDBUS_ROM_ADDRMASK; 117 else 118 testval = ~0; 119 120 pci_write_config(child, reg, testval, 4); 121 testval = pci_read_config(child, reg, 4); 122 123 if (testval == ~0 || testval == 0) 124 return; 125 126 if ((testval & 1) == 0) 127 type = SYS_RES_MEMORY; 128 else 129 type = SYS_RES_IOPORT; 130 131 size = CARDBUS_MAPREG_MEM_SIZE(testval); 132 device_printf(cbdev, "Resource not specified in CIS: id=%x, size=%x\n", 133 reg, size); 134 resource_list_add(&dinfo->pci.resources, type, reg, 0UL, ~0UL, size); 135 } 136 137 static void 138 cardbus_pickup_maps(device_t cbdev, device_t child) 139 { 140 struct cardbus_devinfo *dinfo = device_get_ivars(child); 141 int reg; 142 143 /* 144 * Try to pick up any resources that was not specified in CIS. 145 * Maybe this isn't any longer necessary now that we have fixed 146 * CIS parsing and we should filter things here? XXX 147 */ 148 for (reg = 0; reg < dinfo->pci.cfg.nummaps; reg++) 149 cardbus_add_map(cbdev, child, PCIR_BAR(reg)); 150 } 151 152 static int 153 cardbus_barsort(const void *a, const void *b) 154 { 155 return ((*(const struct resource_list_entry * const *)b)->count - 156 (*(const struct resource_list_entry * const *)a)->count); 157 } 158 159 /* XXX this function is too long */ 160 static int 161 cardbus_alloc_resources(device_t cbdev, device_t child) 162 { 163 struct cardbus_devinfo *dinfo = device_get_ivars(child); 164 int count; 165 struct resource_list_entry *rle; 166 struct resource_list_entry **barlist; 167 int tmp; 168 uint32_t mem_psize = 0, mem_nsize = 0, io_size = 0; 169 struct resource *res; 170 uint32_t start,end; 171 int rid, flags; 172 173 count = 0; 174 STAILQ_FOREACH(rle, &dinfo->pci.resources, link) { 175 count++; 176 } 177 if (count == 0) 178 return (0); 179 barlist = malloc(sizeof(struct resource_list_entry*) * count, M_DEVBUF, 180 M_WAITOK); 181 count = 0; 182 STAILQ_FOREACH(rle, &dinfo->pci.resources, link) { 183 barlist[count] = rle; 184 if (rle->type == SYS_RES_IOPORT) { 185 io_size += rle->count; 186 } else if (rle->type == SYS_RES_MEMORY) { 187 if (dinfo->mprefetchable & BARBIT(rle->rid)) 188 mem_psize += rle->count; 189 else 190 mem_nsize += rle->count; 191 } 192 count++; 193 } 194 195 /* 196 * We want to allocate the largest resource first, so that our 197 * allocated memory is packed. 198 */ 199 qsort(barlist, count, sizeof(struct resource_list_entry *), 200 cardbus_barsort); 201 202 /* Allocate prefetchable memory */ 203 flags = 0; 204 for (tmp = 0; tmp < count; tmp++) { 205 rle = barlist[tmp]; 206 if (rle->res == NULL && 207 rle->type == SYS_RES_MEMORY && 208 dinfo->mprefetchable & BARBIT(rle->rid)) { 209 flags = rman_make_alignment_flags(rle->count); 210 break; 211 } 212 } 213 if (flags > 0) { /* If any prefetchable memory is requested... */ 214 /* 215 * First we allocate one big space for all resources of this 216 * type. We do this because our parent, pccbb, needs to open 217 * a window to forward all addresses within the window, and 218 * it would be best if nobody else has resources allocated 219 * within the window. 220 * (XXX: Perhaps there might be a better way to do this?) 221 */ 222 rid = 0; 223 res = bus_alloc_resource(cbdev, SYS_RES_MEMORY, &rid, 0, 224 (dinfo->mprefetchable & dinfo->mbelow1mb)?0xFFFFF:~0UL, 225 mem_psize, flags); 226 if (res == NULL) { 227 device_printf(cbdev, 228 "Can't get memory for prefetch mem\n"); 229 free(barlist, M_DEVBUF); 230 return (EIO); 231 } 232 start = rman_get_start(res); 233 end = rman_get_end(res); 234 DEVPRINTF((cbdev, "Prefetchable memory at %x-%x\n", start, end)); 235 /* 236 * Now that we know the region is free, release it and hand it 237 * out piece by piece. 238 */ 239 bus_release_resource(cbdev, SYS_RES_MEMORY, rid, res); 240 for (tmp = 0; tmp < count; tmp++) { 241 rle = barlist[tmp]; 242 if (rle->type == SYS_RES_MEMORY && 243 dinfo->mprefetchable & BARBIT(rle->rid)) { 244 rle->res = bus_alloc_resource(cbdev, 245 rle->type, &rle->rid, start, end, 246 rle->count, 247 rman_make_alignment_flags(rle->count)); 248 if (rle->res != NULL) { 249 rle->start = rman_get_start(rle->res); 250 rle->end = rman_get_end(rle->res); 251 pci_write_config(child, 252 rle->rid, rle->start, 4); 253 } 254 } 255 } 256 } 257 258 /* Allocate non-prefetchable memory */ 259 flags = 0; 260 for (tmp = 0; tmp < count; tmp++) { 261 rle = barlist[tmp]; 262 if (rle->type == SYS_RES_MEMORY && 263 (dinfo->mprefetchable & BARBIT(rle->rid)) == 0) { 264 flags = rman_make_alignment_flags(rle->count); 265 break; 266 } 267 } 268 if (flags > 0) { /* If any non-prefetchable memory is requested... */ 269 /* 270 * First we allocate one big space for all resources of this 271 * type. We do this because our parent, pccbb, needs to open 272 * a window to forward all addresses within the window, and 273 * it would be best if nobody else has resources allocated 274 * within the window. 275 * (XXX: Perhaps there might be a better way to do this?) 276 */ 277 rid = 0; 278 res = bus_alloc_resource(cbdev, SYS_RES_MEMORY, &rid, 0, 279 ((~dinfo->mprefetchable) & dinfo->mbelow1mb)?0xFFFFF:~0UL, 280 mem_nsize, flags); 281 if (res == NULL) { 282 device_printf(cbdev, 283 "Can't get memory for non-prefetch mem\n"); 284 free(barlist, M_DEVBUF); 285 return (EIO); 286 } 287 start = rman_get_start(res); 288 end = rman_get_end(res); 289 DEVPRINTF((cbdev, "Non-prefetchable memory at %x-%x\n", 290 start, end)); 291 /* 292 * Now that we know the region is free, release it and hand it 293 * out piece by piece. 294 */ 295 bus_release_resource(cbdev, SYS_RES_MEMORY, rid, res); 296 for (tmp = 0; tmp < count; tmp++) { 297 rle = barlist[tmp]; 298 if (rle->type == SYS_RES_MEMORY && 299 (dinfo->mprefetchable & BARBIT(rle->rid)) == 0) { 300 rle->res = bus_alloc_resource(cbdev, 301 rle->type, &rle->rid, start, end, 302 rle->count, 303 rman_make_alignment_flags(rle->count)); 304 if (rle->res == NULL) { 305 DEVPRINTF((cbdev, "Cannot pre-allocate " 306 "memory for cardbus device\n")); 307 free(barlist, M_DEVBUF); 308 return (ENOMEM); 309 } 310 rle->start = rman_get_start(rle->res); 311 rle->end = rman_get_end(rle->res); 312 pci_write_config(child, 313 rle->rid, rle->start, 4); 314 } 315 } 316 } 317 318 /* Allocate IO ports */ 319 flags = 0; 320 for (tmp = 0; tmp < count; tmp++) { 321 rle = barlist[tmp]; 322 if (rle->type == SYS_RES_IOPORT) { 323 flags = rman_make_alignment_flags(rle->count); 324 break; 325 } 326 } 327 if (flags > 0) { /* If any IO port is requested... */ 328 /* 329 * First we allocate one big space for all resources of this 330 * type. We do this because our parent, pccbb, needs to open 331 * a window to forward all addresses within the window, and 332 * it would be best if nobody else has resources allocated 333 * within the window. 334 * (XXX: Perhaps there might be a better way to do this?) 335 */ 336 rid = 0; 337 res = bus_alloc_resource(cbdev, SYS_RES_IOPORT, &rid, 0, 338 (dinfo->ibelow1mb)?0xFFFFF:~0UL, io_size, flags); 339 if (res == NULL) { 340 device_printf(cbdev, 341 "Can't get memory for IO ports\n"); 342 free(barlist, M_DEVBUF); 343 return (EIO); 344 } 345 start = rman_get_start(res); 346 end = rman_get_end(res); 347 DEVPRINTF((cbdev, "IO port at %x-%x\n", start, end)); 348 /* 349 * Now that we know the region is free, release it and hand it 350 * out piece by piece. 351 */ 352 bus_release_resource(cbdev, SYS_RES_IOPORT, rid, res); 353 for (tmp = 0; tmp < count; tmp++) { 354 rle = barlist[tmp]; 355 if (rle->type == SYS_RES_IOPORT) { 356 rle->res = bus_alloc_resource(cbdev, 357 rle->type, &rle->rid, start, end, 358 rle->count, 359 rman_make_alignment_flags(rle->count)); 360 if (rle->res == NULL) { 361 DEVPRINTF((cbdev, "Cannot pre-allocate " 362 "IO port for cardbus device\n")); 363 free(barlist, M_DEVBUF); 364 return (ENOMEM); 365 } 366 rle->start = rman_get_start(rle->res); 367 rle->end = rman_get_end(rle->res); 368 pci_write_config(child, 369 rle->rid, rle->start, 4); 370 } 371 } 372 } 373 374 /* Allocate IRQ */ 375 rid = 0; 376 res = bus_alloc_resource_any(cbdev, SYS_RES_IRQ, &rid, RF_SHAREABLE); 377 if (res == NULL) { 378 device_printf(cbdev, "Can't get memory for irq\n"); 379 free(barlist, M_DEVBUF); 380 return (EIO); 381 } 382 start = rman_get_start(res); 383 end = rman_get_end(res); 384 resource_list_add(&dinfo->pci.resources, SYS_RES_IRQ, rid, start, end, 385 1); 386 rle = resource_list_find(&dinfo->pci.resources, SYS_RES_IRQ, rid); 387 rle->res = res; 388 dinfo->pci.cfg.intline = start; 389 pci_write_config(child, PCIR_INTLINE, start, 1); 390 391 free(barlist, M_DEVBUF); 392 return (0); 393 } 394 395 /************************************************************************/ 396 /* Probe/Attach */ 397 /************************************************************************/ 398 399 static int 400 cardbus_probe(device_t cbdev) 401 { 402 device_set_desc(cbdev, "CardBus bus"); 403 return 0; 404 } 405 406 static int 407 cardbus_attach(device_t cbdev) 408 { 409 return 0; 410 } 411 412 static int 413 cardbus_detach(device_t cbdev) 414 { 415 cardbus_detach_card(cbdev); 416 return 0; 417 } 418 419 static int 420 cardbus_suspend(device_t self) 421 { 422 cardbus_detach_card(self); 423 return (0); 424 } 425 426 static int 427 cardbus_resume(device_t self) 428 { 429 return (0); 430 } 431 432 /************************************************************************/ 433 /* Attach/Detach card */ 434 /************************************************************************/ 435 436 static void 437 cardbus_device_setup_regs(device_t brdev, int b, int s, int f, pcicfgregs *cfg) 438 { 439 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_INTLINE, 440 pci_get_irq(device_get_parent(brdev)), 1); 441 cfg->intline = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_INTLINE, 1); 442 443 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_CACHELNSZ, 0x08, 1); 444 cfg->cachelnsz = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_CACHELNSZ, 1); 445 446 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_LATTIMER, 0xa8, 1); 447 cfg->lattimer = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_LATTIMER, 1); 448 449 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_MINGNT, 0x14, 1); 450 cfg->mingnt = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_MINGNT, 1); 451 452 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_MAXLAT, 0x14, 1); 453 cfg->maxlat = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_MAXLAT, 1); 454 } 455 456 static int 457 cardbus_attach_card(device_t cbdev) 458 { 459 device_t brdev = device_get_parent(cbdev); 460 device_t child; 461 int cardattached = 0; 462 int bus, slot, func; 463 464 cardbus_detach_card(cbdev); /* detach existing cards */ 465 POWER_ENABLE_SOCKET(brdev, cbdev); 466 bus = pcib_get_bus(cbdev); 467 /* For each function, set it up and try to attach a driver to it */ 468 for (slot = 0; slot <= CARDBUS_SLOTMAX; slot++) { 469 int cardbusfunchigh = 0; 470 for (func = 0; func <= cardbusfunchigh; func++) { 471 struct cardbus_devinfo *dinfo; 472 473 dinfo = (struct cardbus_devinfo *) 474 pci_read_device(brdev, bus, slot, func, 475 sizeof(struct cardbus_devinfo)); 476 if (dinfo == NULL) 477 continue; 478 if (dinfo->pci.cfg.mfdev) 479 cardbusfunchigh = CARDBUS_FUNCMAX; 480 481 cardbus_device_setup_regs(brdev, bus, slot, func, 482 &dinfo->pci.cfg); 483 child = device_add_child(cbdev, NULL, -1); 484 if (child == NULL) { 485 DEVPRINTF((cbdev, "Cannot add child!\n")); 486 pci_freecfg((struct pci_devinfo *)dinfo); 487 continue; 488 } 489 dinfo->pci.cfg.dev = child; 490 resource_list_init(&dinfo->pci.resources); 491 device_set_ivars(child, dinfo); 492 if (cardbus_do_cis(cbdev, child) != 0) { 493 DEVPRINTF((cbdev, "Can't parse cis\n")); 494 pci_freecfg((struct pci_devinfo *)dinfo); 495 continue; 496 } 497 cardbus_pickup_maps(cbdev, child); 498 cardbus_alloc_resources(cbdev, child); 499 pci_print_verbose(&dinfo->pci); 500 if (device_probe_and_attach(child) != 0) 501 cardbus_release_all_resources(cbdev, dinfo); 502 else 503 cardattached++; 504 } 505 } 506 507 if (cardattached > 0) 508 return (0); 509 POWER_DISABLE_SOCKET(brdev, cbdev); 510 return (ENOENT); 511 } 512 513 static int 514 cardbus_detach_card(device_t cbdev) 515 { 516 int numdevs; 517 device_t *devlist; 518 int tmp; 519 int err = 0; 520 521 device_get_children(cbdev, &devlist, &numdevs); 522 523 if (numdevs == 0) { 524 free(devlist, M_TEMP); 525 return (ENOENT); 526 } 527 528 for (tmp = 0; tmp < numdevs; tmp++) { 529 struct cardbus_devinfo *dinfo = device_get_ivars(devlist[tmp]); 530 int status = device_get_state(devlist[tmp]); 531 532 if (dinfo->pci.cfg.dev != devlist[tmp]) 533 device_printf(cbdev, "devinfo dev mismatch\n"); 534 if (status == DS_ATTACHED || status == DS_BUSY) 535 device_detach(devlist[tmp]); 536 cardbus_release_all_resources(cbdev, dinfo); 537 device_delete_child(cbdev, devlist[tmp]); 538 pci_freecfg((struct pci_devinfo *)dinfo); 539 } 540 POWER_DISABLE_SOCKET(device_get_parent(cbdev), cbdev); 541 free(devlist, M_TEMP); 542 return (err); 543 } 544 545 static void 546 cardbus_driver_added(device_t cbdev, driver_t *driver) 547 { 548 int numdevs; 549 device_t *devlist; 550 device_t dev; 551 int i; 552 struct cardbus_devinfo *dinfo; 553 554 DEVICE_IDENTIFY(driver, cbdev); 555 device_get_children(cbdev, &devlist, &numdevs); 556 /* 557 * If there are no drivers attached, but there are children, 558 * then power the card up. 559 */ 560 for (i = 0; i < numdevs; i++) { 561 dev = devlist[i]; 562 if (device_get_state(dev) != DS_NOTPRESENT) 563 break; 564 } 565 if (i > 0 && i == numdevs) 566 POWER_ENABLE_SOCKET(device_get_parent(cbdev), cbdev); 567 for (i = 0; i < numdevs; i++) { 568 dev = devlist[i]; 569 if (device_get_state(dev) != DS_NOTPRESENT) 570 continue; 571 dinfo = device_get_ivars(dev); 572 pci_print_verbose(&dinfo->pci); 573 resource_list_init(&dinfo->pci.resources); 574 cardbus_do_cis(cbdev, dev); 575 cardbus_pickup_maps(cbdev, dev); 576 cardbus_alloc_resources(cbdev, dev); 577 if (device_probe_and_attach(dev) != 0) 578 cardbus_release_all_resources(cbdev, dinfo); 579 } 580 free(devlist, M_TEMP); 581 } 582 583 static void 584 cardbus_release_all_resources(device_t cbdev, struct cardbus_devinfo *dinfo) 585 { 586 struct resource_list_entry *rle; 587 588 /* Free all allocated resources */ 589 STAILQ_FOREACH(rle, &dinfo->pci.resources, link) { 590 if (rle->res) { 591 if (rman_get_device(rle->res) != cbdev) 592 device_printf(cbdev, "release_all_resource: " 593 "Resource still owned by child, oops. " 594 "(type=%d, rid=%d, addr=%lx)\n", 595 rle->type, rle->rid, 596 rman_get_start(rle->res)); 597 BUS_RELEASE_RESOURCE(device_get_parent(cbdev), 598 cbdev, rle->type, rle->rid, rle->res); 599 rle->res = NULL; 600 /* 601 * zero out config so the card won't acknowledge 602 * access to the space anymore 603 */ 604 pci_write_config(dinfo->pci.cfg.dev, rle->rid, 0, 4); 605 } 606 } 607 resource_list_free(&dinfo->pci.resources); 608 } 609 610 /************************************************************************/ 611 /* Other Bus Methods */ 612 /************************************************************************/ 613 614 static int 615 cardbus_read_ivar(device_t cbdev, device_t child, int which, uintptr_t *result) 616 { 617 struct cardbus_devinfo *dinfo; 618 pcicfgregs *cfg; 619 620 dinfo = device_get_ivars(child); 621 cfg = &dinfo->pci.cfg; 622 623 switch (which) { 624 case PCI_IVAR_ETHADDR: 625 /* 626 * The generic accessor doesn't deal with failure, so 627 * we set the return value, then return an error. 628 */ 629 if (dinfo->fepresent & (1 << PCCARD_TPLFE_TYPE_LAN_NID)) { 630 *((uint8_t **) result) = dinfo->funce.lan.nid; 631 break; 632 } 633 *((uint8_t **) result) = NULL; 634 return (EINVAL); 635 default: 636 return (pci_read_ivar(cbdev, child, which, result)); 637 } 638 return 0; 639 } 640 641 static int 642 cardbus_write_ivar(device_t cbdev, device_t child, int which, uintptr_t value) 643 { 644 return(pci_write_ivar(cbdev, child, which, value)); 645 } 646 647 static device_method_t cardbus_methods[] = { 648 /* Device interface */ 649 DEVMETHOD(device_probe, cardbus_probe), 650 DEVMETHOD(device_attach, cardbus_attach), 651 DEVMETHOD(device_detach, cardbus_detach), 652 DEVMETHOD(device_suspend, cardbus_suspend), 653 DEVMETHOD(device_resume, cardbus_resume), 654 655 /* Bus interface */ 656 DEVMETHOD(bus_read_ivar, cardbus_read_ivar), 657 DEVMETHOD(bus_write_ivar, cardbus_write_ivar), 658 DEVMETHOD(bus_driver_added, cardbus_driver_added), 659 660 /* Card Interface */ 661 DEVMETHOD(card_attach_card, cardbus_attach_card), 662 DEVMETHOD(card_detach_card, cardbus_detach_card), 663 664 {0,0} 665 }; 666 667 DEFINE_CLASS_1(cardbus, cardbus_driver, cardbus_methods, 0, pci_driver); 668 669 static devclass_t cardbus_devclass; 670 671 DRIVER_MODULE(cardbus, cbb, cardbus_driver, cardbus_devclass, 0, 0); 672 MODULE_VERSION(cardbus, 1);
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