cardbus.c revision 1.18
1 /* $NetBSD: cardbus.c,v 1.18 2000/01/26 09:04:59 haya Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998, 1999 and 2000 5 * HAYAKAWA Koichi. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by HAYAKAWA Koichi. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include "opt_cardbus.h" 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/kernel.h> 43 #include <sys/syslog.h> 44 45 #include <machine/bus.h> 46 47 #include <dev/cardbus/cardbusvar.h> 48 #include <dev/cardbus/cardbusdevs.h> 49 #include <dev/cardbus/pccardcis.h> 50 51 #include <dev/cardbus/cardbus_exrom.h> 52 53 #include <dev/pci/pcivar.h> /* XXX */ 54 #include <dev/pci/pcireg.h> /* XXX */ 55 56 #include <dev/pcmcia/pcmciareg.h> /* XXX */ 57 58 #if defined CARDBUS_DEBUG 59 #define STATIC 60 #define DPRINTF(a) printf a 61 #else 62 #define STATIC static 63 #define DPRINTF(a) 64 #endif 65 66 67 68 STATIC void cardbusattach __P((struct device *, struct device *, void *)); 69 /* STATIC int cardbusprint __P((void *, const char *)); */ 70 int cardbus_attach_card __P((struct cardbus_softc *)); 71 72 #if !defined __BROKEN_INDIRECT_CONFIG 73 STATIC int cardbusmatch __P((struct device *, struct cfdata *, void *)); 74 static int cardbussubmatch __P((struct device *, struct cfdata *, void *)); 75 #else 76 STATIC int cardbusmatch __P((struct device *, void *, void *)); 77 static int cardbussubmatch __P((struct device *, void *, void *)); 78 #endif 79 static int cardbusprint __P((void *, const char *)); 80 81 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 82 83 static int decode_tuples __P((u_int8_t *, int, tuple_decode_func, void*)); 84 #ifdef CARDBUS_DEBUG 85 static void print_tuple __P((u_int8_t*, int, void*)); 86 #endif 87 88 static int cardbus_read_tuples __P((struct cardbus_attach_args *, 89 cardbusreg_t, u_int8_t *, size_t)); 90 91 static void enable_function __P((struct cardbus_softc *, int, int)); 92 static void disable_function __P((struct cardbus_softc *, int)); 93 94 95 struct cfattach cardbus_ca = { 96 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 97 }; 98 99 #ifndef __NetBSD_Version__ 100 struct cfdriver cardbus_cd = { 101 NULL, "cardbus", DV_DULL 102 }; 103 #endif 104 105 106 STATIC int 107 #if defined __BROKEN_INDIRECT_CONFIG 108 cardbusmatch(parent, match, aux) 109 struct device *parent; 110 void *match; 111 void *aux; 112 #else 113 cardbusmatch(parent, cf, aux) 114 struct device *parent; 115 struct cfdata *cf; 116 void *aux; 117 #endif 118 { 119 #if defined __BROKEN_INDIRECT_CONFIG 120 struct cfdata *cf = match; 121 #endif 122 struct cbslot_attach_args *cba = aux; 123 124 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 125 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 126 cba->cba_busname, cf->cf_driver->cd_name)); 127 return 0; 128 } 129 130 #if 0 131 /* which function? */ 132 if (cf->cbslotcf_func != CBSLOT_UNK_FUNC && 133 cf->cbslotcf_func != cba->cba_function) { 134 DPRINTF(("cardbusmatch: function differs %d <=> %d\n", 135 cf->cbslotcf_func, cba->cba_function)); 136 return 0; 137 } 138 #endif 139 140 if (cba->cba_function < 0 || cba->cba_function > 255) { 141 return 0; 142 } 143 144 return 1; 145 } 146 147 148 149 STATIC void 150 cardbusattach(parent, self, aux) 151 struct device *parent; 152 struct device *self; 153 void *aux; 154 { 155 struct cardbus_softc *sc = (void *)self; 156 struct cbslot_attach_args *cba = aux; 157 int cdstatus; 158 159 sc->sc_bus = cba->cba_bus; 160 sc->sc_device = cba->cba_function; 161 sc->sc_intrline = cba->cba_intrline; 162 sc->sc_cacheline = cba->cba_cacheline; 163 sc->sc_lattimer = cba->cba_lattimer; 164 165 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 166 printf(" cacheline 0x%x, lattimer 0x%x\n", sc->sc_cacheline,sc->sc_lattimer); 167 168 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 169 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 170 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 171 sc->sc_cc = cba->cba_cc; 172 sc->sc_cf = cba->cba_cf; 173 174 #if rbus 175 sc->sc_rbus_iot = cba->cba_rbus_iot; 176 sc->sc_rbus_memt = cba->cba_rbus_memt; 177 #endif 178 179 sc->sc_funcs = NULL; 180 181 cdstatus = 0; 182 } 183 184 static int 185 cardbus_read_tuples(ca, cis_ptr, tuples, len) 186 struct cardbus_attach_args *ca; 187 cardbusreg_t cis_ptr; 188 u_int8_t *tuples; 189 size_t len; 190 { 191 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 192 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 193 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 194 cardbustag_t tag = ca->ca_tag; 195 cardbusreg_t command; 196 int found = 0; 197 198 int i, j; 199 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 200 bus_space_handle_t bar_memh; 201 bus_size_t bar_size; 202 bus_addr_t bar_addr; 203 204 int reg; 205 206 memset(tuples, 0, len); 207 208 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 209 210 switch(cardbus_space) { 211 case CARDBUS_CIS_ASI_TUPLE: 212 DPRINTF(("%s: reading CIS data from configuration space\n", 213 sc->sc_dev.dv_xname)); 214 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 215 u_int32_t e = (cf->cardbus_conf_read)(cc, tag, i); 216 tuples[j] = 0xff & e; 217 e >>= 8; 218 tuples[j + 1] = 0xff & e; 219 e >>= 8; 220 tuples[j + 2] = 0xff & e; 221 e >>= 8; 222 tuples[j + 3] = 0xff & e; 223 j += 4; 224 } 225 found++; 226 break; 227 228 case CARDBUS_CIS_ASI_BAR0: 229 case CARDBUS_CIS_ASI_BAR1: 230 case CARDBUS_CIS_ASI_BAR2: 231 case CARDBUS_CIS_ASI_BAR3: 232 case CARDBUS_CIS_ASI_BAR4: 233 case CARDBUS_CIS_ASI_BAR5: 234 case CARDBUS_CIS_ASI_ROM: 235 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 236 reg = CARDBUS_ROM_REG; 237 DPRINTF(("%s: reading CIS data from ROM\n", 238 sc->sc_dev.dv_xname)); 239 } else { 240 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 241 DPRINTF(("%s: reading CIS data from BAR%d\n", 242 sc->sc_dev.dv_xname, cardbus_space - 1)); 243 } 244 245 /* XXX zero register so mapreg_map doesn't get confused by old 246 contents */ 247 cardbus_conf_write(cc, cf, tag, reg, 0); 248 if(Cardbus_mapreg_map(ca->ca_ct, reg, 249 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 250 0, 251 NULL, &bar_memh, &bar_addr, &bar_size)) { 252 printf("%s: failed to map memory\n", sc->sc_dev.dv_xname); 253 return 1; 254 } 255 256 257 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 258 cardbusreg_t exrom; 259 int save; 260 struct cardbus_rom_image_head rom_image; 261 struct cardbus_rom_image *p; 262 263 save = splhigh(); 264 /* enable rom address decoder */ 265 exrom = cardbus_conf_read(cc, cf, tag, reg); 266 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 267 268 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 269 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 270 command | CARDBUS_COMMAND_MEM_ENABLE); 271 272 if(cardbus_read_exrom(ca->ca_memt, bar_memh, &rom_image)) 273 goto out; 274 275 for(p = SIMPLEQ_FIRST(&rom_image); 276 p; 277 p = SIMPLEQ_NEXT(p, next)) { 278 if(p->rom_image == CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 279 bus_space_read_region_1(p->romt, p->romh, 280 CARDBUS_CIS_ADDR(cis_ptr), 281 tuples, 256); 282 found++; 283 } 284 break; 285 } 286 while((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 287 SIMPLEQ_REMOVE_HEAD(&rom_image, p, next); 288 free(p, M_DEVBUF); 289 } 290 out: 291 exrom = cardbus_conf_read(cc, cf, tag, reg); 292 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 293 splx(save); 294 } else { 295 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 296 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 297 command | CARDBUS_COMMAND_MEM_ENABLE); 298 /* XXX byte order? */ 299 bus_space_read_region_1(ca->ca_memt, bar_memh, 300 cis_ptr, tuples, 256); 301 found++; 302 } 303 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 304 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 305 command & ~CARDBUS_COMMAND_MEM_ENABLE); 306 cardbus_conf_write(cc, cf, tag, reg, 0); 307 #if 0 308 /* XXX unmap memory */ 309 (*ca->ca_ct->ct_cf->cardbus_space_free)(ca->ca_ct, 310 ca->ca_ct->ct_sc->sc_rbus_memt, 311 bar_memh, bar_size); 312 #endif 313 break; 314 315 #ifdef DIAGNOSTIC 316 default: 317 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, cardbus_space); 318 #endif 319 } 320 return !found; 321 } 322 323 static void 324 parse_tuple(u_int8_t *tuple, int len, void *data) 325 { 326 #ifdef CARDBUS_DEBUG 327 static const char __func__[] = "parse_tuple"; 328 #endif 329 struct cardbus_cis_info *cis = data; 330 int bar_index; 331 int i; 332 char *p; 333 switch(tuple[0]) { 334 case PCMCIA_CISTPL_MANFID: 335 if(tuple[1] != 5) { 336 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 337 __func__, tuple[1])); 338 break; 339 } 340 cis->manufacturer = tuple[2] | (tuple[3] << 8); 341 cis->product = tuple[4] | (tuple[5] << 8); 342 break; 343 case PCMCIA_CISTPL_VERS_1: 344 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 345 i = 0; 346 p = cis->cis1_info_buf + 2; 347 while(i < sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 348 cis->cis1_info[i++] = p; 349 while(*p != '\0' && *p != '\xff') 350 p++; 351 if(*p == '\xff') 352 break; 353 p++; 354 } 355 break; 356 case PCMCIA_CISTPL_BAR: 357 if(tuple[1] != 6) { 358 DPRINTF(("%s: BAR with short length (%d)\n", __func__, tuple[1])); 359 break; 360 } 361 bar_index = tuple[2] & 7; 362 if(bar_index == 0) { 363 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 364 break; 365 } 366 bar_index--; 367 cis->bar[bar_index].flags = tuple[2]; 368 cis->bar[bar_index].size = (tuple[4] << 0) | 369 (tuple[5] << 8) | 370 (tuple[6] << 16) | 371 (tuple[7] << 24); 372 break; 373 case PCMCIA_CISTPL_FUNCID: 374 cis->funcid = tuple[2]; 375 break; 376 377 case PCMCIA_CISTPL_FUNCE: 378 if(cis->funcid == PCMCIA_FUNCTION_NETWORK && tuple[1] >= 8) { 379 if(tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 380 if(tuple[3] > sizeof(cis->funce.network.netid)) { 381 DPRINTF(("%s: unknown network id type (len = %d)\n", 382 __func__, tuple[3])); 383 } else { 384 memcpy(cis->funce.network.netid, 385 tuple + 4, tuple[3]); 386 } 387 } 388 } 389 break; 390 } 391 } 392 393 /* 394 * int cardbus_attach_card(struct cardbus_softc *sc) 395 * 396 * This function attaches the card on the slot: turns on power, 397 * reads and analyses tuple, sets consifuration index. 398 * 399 * This function returns the number of recognised device functions. 400 * If no functions are recognised, return 0. 401 */ 402 int 403 cardbus_attach_card(sc) 404 struct cardbus_softc *sc; 405 { 406 cardbus_chipset_tag_t cc; 407 cardbus_function_tag_t cf; 408 int cdstatus; 409 cardbustag_t tag; 410 cardbusreg_t id, class, cis_ptr; 411 cardbusreg_t bhlc; 412 u_int8_t tuple[2048]; 413 int function, nfunction; 414 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 415 struct device *csc; 416 int no_work_funcs = 0; 417 cardbus_devfunc_t ct; 418 419 cc = sc->sc_cc; 420 cf = sc->sc_cf; 421 422 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 423 424 /* inspect initial voltage */ 425 if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) { 426 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", sc->sc_dev.dv_unit)); 427 return 0; 428 } 429 430 enable_function(sc, cdstatus, 8); /* XXX use fake function 8 to 431 keep power on during whole 432 configuration */ 433 function = 0; 434 435 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 436 437 /* 438 * Wait until power comes up. Maxmum 500 ms. 439 */ 440 { 441 int i; 442 for (i = 0; i < 5; ++i) { 443 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 444 if (id != 0xffffffff && id != 0) { 445 break; 446 } 447 delay(100*1000); /* or tsleep */ 448 } 449 if (i == 5) { 450 return 0; 451 } 452 } 453 454 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 455 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 456 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 457 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 458 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 459 } 460 461 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 462 463 for(function = 0; function < nfunction; function++) { 464 struct cardbus_attach_args ca; 465 466 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 467 468 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 469 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 470 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 471 472 /* Invalid vendor ID value? */ 473 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 474 continue; 475 } 476 477 DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 478 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 479 480 enable_function(sc, cdstatus, function); 481 482 /* clean up every BAR */ 483 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 484 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 485 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 486 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 487 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 488 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 489 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 490 491 /* 492 * We need to allocate the ct here, since we might 493 * need it when reading the CIS 494 */ 495 if (NULL == (ct = (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc), 496 M_DEVBUF, M_NOWAIT))) { 497 panic("no room for cardbus_tag"); 498 } 499 500 ct->ct_cc = sc->sc_cc; 501 ct->ct_cf = sc->sc_cf; 502 ct->ct_bus = sc->sc_bus; 503 ct->ct_dev = sc->sc_device; 504 ct->ct_func = function; 505 ct->ct_sc = sc; 506 ct->ct_next = NULL; 507 *previous_next = ct; 508 509 memset(&ca, 0, sizeof(ca)); 510 511 ca.ca_unit = sc->sc_dev.dv_unit; 512 ca.ca_ct = ct; 513 514 ca.ca_iot = sc->sc_iot; 515 ca.ca_memt = sc->sc_memt; 516 ca.ca_dmat = sc->sc_dmat; 517 518 ca.ca_tag = tag; 519 ca.ca_device = sc->sc_device; 520 ca.ca_function = function; 521 ca.ca_id = id; 522 ca.ca_class = class; 523 524 ca.ca_intrline = sc->sc_intrline; 525 526 bzero(tuple, 2048); 527 528 if(cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 529 printf("cardbus_attach_card: failed to read CIS\n"); 530 } else { 531 #ifdef CARDBUS_DEBUG 532 decode_tuples(tuple, 2048, print_tuple, NULL); 533 #endif 534 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 535 } 536 537 if (NULL == (csc = config_found_sm((void *)sc, &ca, cardbusprint, cardbussubmatch))) { 538 /* do not match */ 539 disable_function(sc, function); 540 free(ct, M_DEVBUF); 541 *previous_next = NULL; 542 } else { 543 /* found */ 544 previous_next = &(ct->ct_next); 545 ct->ct_device = csc; 546 ++no_work_funcs; 547 } 548 } 549 /* 550 * XXX power down pseudo function 8 (this will power down the card 551 * if no functions were attached). 552 */ 553 disable_function(sc, 8); 554 555 return no_work_funcs; 556 } 557 558 559 static int 560 #ifdef __BROKEN_INDIRECT_CONFIG 561 cardbussubmatch(parent, match, aux) 562 #else 563 cardbussubmatch(parent, cf, aux) 564 #endif 565 struct device *parent; 566 #ifdef __BROKEN_INDIRECT_CONFIG 567 void *match; 568 #else 569 struct cfdata *cf; 570 #endif 571 void *aux; 572 { 573 #ifdef __BROKEN_INDIRECT_CONFIG 574 struct cfdata *cf = match; 575 #endif 576 struct cardbus_attach_args *ca = aux; 577 578 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 579 cf->cardbuscf_dev != ca->ca_unit) { 580 return 0; 581 } 582 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 583 cf->cardbuscf_function != ca->ca_function) { 584 return 0; 585 } 586 587 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 588 } 589 590 591 592 static int 593 cardbusprint(aux, pnp) 594 void *aux; 595 const char *pnp; 596 { 597 struct cardbus_attach_args *ca = aux; 598 char devinfo[256]; 599 int i; 600 if (pnp) { 601 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 602 for (i = 0; i < 4; i++) { 603 if (ca->ca_cis.cis1_info[i] == NULL) 604 break; 605 if (i) 606 printf(", "); 607 printf("%s", ca->ca_cis.cis1_info[i]); 608 } 609 if (i) 610 printf(" "); 611 printf("(manufacturer 0x%x, product 0x%x)", ca->ca_cis.manufacturer, 612 ca->ca_cis.product); 613 printf(" %s at %s", devinfo, pnp); 614 } 615 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 616 617 return UNCONF; 618 } 619 620 621 622 623 624 625 /* 626 * void cardbus_detach_card(struct cardbus_softc *sc) 627 * 628 * This function detaches the card on the slot: detach device data 629 * structure and turns off the power. 630 * 631 * This function must not be called under interrupt context. 632 */ 633 void 634 cardbus_detach_card(sc) 635 struct cardbus_softc *sc; 636 { 637 struct cardbus_devfunc *ct, *ct_next, **prev_next; 638 639 prev_next = &(sc->sc_funcs->ct_next); 640 641 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 642 struct device *fndev = ct->ct_device; 643 ct_next = ct->ct_next; 644 645 printf("%s: detaching %s\n", sc->sc_dev.dv_xname, fndev->dv_xname); 646 /* call device detach function */ 647 648 649 if (0 != config_detach(fndev, 0)) { 650 printf("%s: cannot detaching dev %s, function %d\n", 651 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 652 prev_next = &(ct->ct_next); 653 } else { 654 sc->sc_poweron_func &= ~(1 << ct->ct_func); 655 *prev_next = ct->ct_next; 656 free(ct, M_DEVBUF); 657 } 658 } 659 } 660 661 662 663 664 /* 665 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 666 * Interrupt handler of pccard. 667 * args: 668 * cardbus_chipset_tag_t *cc 669 * int irq: 670 */ 671 void * 672 cardbus_intr_establish(cc, cf, irq, level, func, arg) 673 cardbus_chipset_tag_t cc; 674 cardbus_function_tag_t cf; 675 cardbus_intr_handle_t irq; 676 int level; 677 int (*func) __P((void *)); 678 void *arg; 679 { 680 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 681 682 return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg); 683 } 684 685 686 687 /* 688 * void cardbus_intr_disestablish(cc, cf, handler) 689 * Interrupt handler of pccard. 690 * args: 691 * cardbus_chipset_tag_t *cc 692 */ 693 void 694 cardbus_intr_disestablish(cc, cf, handler) 695 cardbus_chipset_tag_t cc; 696 cardbus_function_tag_t cf; 697 void *handler; 698 { 699 DPRINTF(("- pccard_intr_disestablish\n")); 700 701 (*cf->cardbus_intr_disestablish)(cc, handler); 702 return; 703 } 704 705 706 707 /* XXX this should be merged with cardbus_function_{enable,disable}, 708 but we don't have a ct when these functions are called */ 709 710 static void 711 enable_function(sc, cdstatus, function) 712 struct cardbus_softc *sc; 713 int cdstatus; 714 int function; 715 { 716 717 if(sc->sc_poweron_func == 0) { 718 if (cdstatus & CARDBUS_3V_CARD) { 719 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V); 720 } 721 (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 722 } 723 sc->sc_poweron_func |= (1 << function); 724 } 725 726 static void 727 disable_function(sc, function) 728 struct cardbus_softc *sc; 729 int function; 730 { 731 732 sc->sc_poweron_func &= ~(1 << function); 733 if(sc->sc_poweron_func == 0) { 734 /* power-off because no functions are enabled */ 735 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V); 736 } 737 } 738 739 /* 740 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 741 * 742 * This function enables a function on a card. When no power is 743 * applied on the card, power will be applied on it. 744 */ 745 int 746 cardbus_function_enable(sc, func) 747 struct cardbus_softc *sc; 748 int func; 749 { 750 cardbus_chipset_tag_t cc = sc->sc_cc; 751 cardbus_function_tag_t cf = sc->sc_cf; 752 cardbusreg_t command; 753 cardbustag_t tag; 754 755 DPRINTF(("entering cardbus_function_enable... ")); 756 757 /* entering critical area */ 758 759 enable_function(sc, CARDBUS_3V_CARD, func); /* XXX: sc_vold should be used */ 760 761 /* exiting critical area */ 762 763 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 764 765 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 766 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 767 768 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 769 770 cardbus_free_tag(cc, cf, tag); 771 772 DPRINTF(("%x\n", sc->sc_poweron_func)); 773 774 return 0; 775 } 776 777 778 /* 779 * int cardbus_function_disable(struct cardbus_softc *, int func) 780 * 781 * This function disable a function on a card. When no functions are 782 * enabled, it turns off the power. 783 */ 784 int 785 cardbus_function_disable(sc, func) 786 struct cardbus_softc *sc; 787 int func; 788 { 789 790 DPRINTF(("entering cardbus_function_disable... ")); 791 792 disable_function(sc, func); 793 794 return 0; 795 } 796 797 798 /* 799 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 800 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 801 * cardbusreg_t *value) 802 * 803 * Find the specified PCI capability. 804 */ 805 int 806 cardbus_get_capability(cc, cf, tag, capid, offset, value) 807 cardbus_chipset_tag_t cc; 808 cardbus_function_tag_t cf; 809 cardbustag_t tag; 810 int capid; 811 int *offset; 812 cardbusreg_t *value; 813 { 814 cardbusreg_t reg; 815 unsigned int ofs; 816 817 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 818 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 819 return (0); 820 821 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 822 PCI_CAPLISTPTR_REG)); 823 while (ofs != 0) { 824 #ifdef DIAGNOSTIC 825 if ((ofs & 3) || (ofs < 0x40)) 826 panic("cardbus_get_capability"); 827 #endif 828 reg = cardbus_conf_read(cc, cf, tag, ofs); 829 if (PCI_CAPLIST_CAP(reg) == capid) { 830 if (offset) 831 *offset = ofs; 832 if (value) 833 *value = reg; 834 return (1); 835 } 836 ofs = PCI_CAPLIST_NEXT(reg); 837 } 838 839 return (0); 840 } 841 842 843 /* 844 * below this line, there are some functions for decoding tuples. 845 * They should go out from this file. 846 */ 847 848 static u_int8_t * 849 decode_tuple __P((u_int8_t *tuple, tuple_decode_func func, void *data)); 850 851 static int 852 decode_tuples(tuple, buflen, func, data) 853 u_int8_t *tuple; 854 int buflen; 855 tuple_decode_func func; 856 void *data; 857 { 858 u_int8_t *tp = tuple; 859 860 if (CISTPL_LINKTARGET != *tuple) { 861 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 862 return 0; 863 } 864 865 while (NULL != (tp = decode_tuple(tp, func, data))) { 866 if (tuple + buflen < tp) { 867 break; 868 } 869 } 870 871 return 1; 872 } 873 874 875 static u_int8_t * 876 decode_tuple(tuple, func, data) 877 u_int8_t *tuple; 878 tuple_decode_func func; 879 void *data; 880 { 881 u_int8_t type; 882 u_int8_t len; 883 884 type = tuple[0]; 885 len = tuple[1] + 2; 886 887 (*func)(tuple, len, data); 888 889 if (CISTPL_END == type) { 890 return NULL; 891 } 892 893 return tuple + len; 894 } 895 896 897 #ifdef CARDBUS_DEBUG 898 static char *tuple_name __P((int type)); 899 900 static char * 901 tuple_name(type) 902 int type; 903 { 904 static char *tuple_name_s [] = { 905 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 906 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 907 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 908 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 909 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 910 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 911 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 912 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 913 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 914 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 915 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 916 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 917 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 918 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 919 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 920 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 921 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 922 "DATE", "BATTERY", "ORG" 923 }; 924 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 925 926 if (type > 0 && type < NAME_LEN(tuple_name_s)) { 927 return tuple_name_s[type]; 928 } else if (0xff == type) { 929 return "END"; 930 } else { 931 return "Reserved"; 932 } 933 } 934 935 static void 936 print_tuple(tuple, len, data) 937 u_int8_t *tuple; 938 int len; 939 void *data; 940 { 941 int i; 942 943 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 944 945 for (i = 0; i < len; ++i) { 946 if (i % 16 == 0) { 947 printf(" 0x%2x:", i); 948 } 949 printf(" %x",tuple[i]); 950 if (i % 16 == 15) { 951 printf("\n"); 952 } 953 } 954 if (i % 16 != 0) { 955 printf("\n"); 956 } 957 } 958 959 #endif 960 961
Indexes created Tue Sep 30 07:10:03 GMT 2025