cardbus.c revision 1.19
1 /* $NetBSD: cardbus.c,v 1.19 2000/01/31 08:49:07 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 #include <sys/proc.h> 45 46 #include <machine/bus.h> 47 48 #include <dev/cardbus/cardbusvar.h> 49 #include <dev/cardbus/cardbusdevs.h> 50 #include <dev/cardbus/pccardcis.h> 51 52 #include <dev/cardbus/cardbus_exrom.h> 53 54 #include <dev/pci/pcivar.h> /* XXX */ 55 #include <dev/pci/pcireg.h> /* XXX */ 56 57 #include <dev/pcmcia/pcmciareg.h> /* XXX */ 58 59 #if defined CARDBUS_DEBUG 60 #define STATIC 61 #define DPRINTF(a) printf a 62 #else 63 #define STATIC static 64 #define DPRINTF(a) 65 #endif 66 67 68 69 STATIC void cardbusattach __P((struct device *, struct device *, void *)); 70 /* STATIC int cardbusprint __P((void *, const char *)); */ 71 int cardbus_attach_card __P((struct cardbus_softc *)); 72 73 #if !defined __BROKEN_INDIRECT_CONFIG 74 STATIC int cardbusmatch __P((struct device *, struct cfdata *, void *)); 75 static int cardbussubmatch __P((struct device *, struct cfdata *, void *)); 76 #else 77 STATIC int cardbusmatch __P((struct device *, void *, void *)); 78 static int cardbussubmatch __P((struct device *, void *, void *)); 79 #endif 80 static int cardbusprint __P((void *, const char *)); 81 82 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 83 84 static int decode_tuples __P((u_int8_t *, int, tuple_decode_func, void*)); 85 #ifdef CARDBUS_DEBUG 86 static void print_tuple __P((u_int8_t*, int, void*)); 87 #endif 88 89 static int cardbus_read_tuples __P((struct cardbus_attach_args *, 90 cardbusreg_t, u_int8_t *, size_t)); 91 92 static void enable_function __P((struct cardbus_softc *, int, int)); 93 static void disable_function __P((struct cardbus_softc *, int)); 94 95 96 struct cfattach cardbus_ca = { 97 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 98 }; 99 100 #ifndef __NetBSD_Version__ 101 struct cfdriver cardbus_cd = { 102 NULL, "cardbus", DV_DULL 103 }; 104 #endif 105 106 107 STATIC int 108 #if defined __BROKEN_INDIRECT_CONFIG 109 cardbusmatch(parent, match, aux) 110 struct device *parent; 111 void *match; 112 void *aux; 113 #else 114 cardbusmatch(parent, cf, aux) 115 struct device *parent; 116 struct cfdata *cf; 117 void *aux; 118 #endif 119 { 120 #if defined __BROKEN_INDIRECT_CONFIG 121 struct cfdata *cf = match; 122 #endif 123 struct cbslot_attach_args *cba = aux; 124 125 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 126 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 127 cba->cba_busname, cf->cf_driver->cd_name)); 128 return 0; 129 } 130 131 #if 0 132 /* which function? */ 133 if (cf->cbslotcf_func != CBSLOT_UNK_FUNC && 134 cf->cbslotcf_func != cba->cba_function) { 135 DPRINTF(("cardbusmatch: function differs %d <=> %d\n", 136 cf->cbslotcf_func, cba->cba_function)); 137 return 0; 138 } 139 #endif 140 141 if (cba->cba_function < 0 || cba->cba_function > 255) { 142 return 0; 143 } 144 145 return 1; 146 } 147 148 149 150 STATIC void 151 cardbusattach(parent, self, aux) 152 struct device *parent; 153 struct device *self; 154 void *aux; 155 { 156 struct cardbus_softc *sc = (void *)self; 157 struct cbslot_attach_args *cba = aux; 158 int cdstatus; 159 160 sc->sc_bus = cba->cba_bus; 161 sc->sc_device = cba->cba_function; 162 sc->sc_intrline = cba->cba_intrline; 163 sc->sc_cacheline = cba->cba_cacheline; 164 sc->sc_lattimer = cba->cba_lattimer; 165 166 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 167 printf(" cacheline 0x%x, lattimer 0x%x\n", sc->sc_cacheline,sc->sc_lattimer); 168 169 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 170 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 171 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 172 sc->sc_cc = cba->cba_cc; 173 sc->sc_cf = cba->cba_cf; 174 175 #if rbus 176 sc->sc_rbus_iot = cba->cba_rbus_iot; 177 sc->sc_rbus_memt = cba->cba_rbus_memt; 178 #endif 179 180 sc->sc_funcs = NULL; 181 182 cdstatus = 0; 183 } 184 185 static int 186 cardbus_read_tuples(ca, cis_ptr, tuples, len) 187 struct cardbus_attach_args *ca; 188 cardbusreg_t cis_ptr; 189 u_int8_t *tuples; 190 size_t len; 191 { 192 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 193 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 194 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 195 cardbustag_t tag = ca->ca_tag; 196 cardbusreg_t command; 197 int found = 0; 198 199 int i, j; 200 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 201 bus_space_handle_t bar_memh; 202 bus_size_t bar_size; 203 bus_addr_t bar_addr; 204 205 int reg; 206 207 memset(tuples, 0, len); 208 209 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 210 211 switch(cardbus_space) { 212 case CARDBUS_CIS_ASI_TUPLE: 213 DPRINTF(("%s: reading CIS data from configuration space\n", 214 sc->sc_dev.dv_xname)); 215 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 216 u_int32_t e = (cf->cardbus_conf_read)(cc, tag, i); 217 tuples[j] = 0xff & e; 218 e >>= 8; 219 tuples[j + 1] = 0xff & e; 220 e >>= 8; 221 tuples[j + 2] = 0xff & e; 222 e >>= 8; 223 tuples[j + 3] = 0xff & e; 224 j += 4; 225 } 226 found++; 227 break; 228 229 case CARDBUS_CIS_ASI_BAR0: 230 case CARDBUS_CIS_ASI_BAR1: 231 case CARDBUS_CIS_ASI_BAR2: 232 case CARDBUS_CIS_ASI_BAR3: 233 case CARDBUS_CIS_ASI_BAR4: 234 case CARDBUS_CIS_ASI_BAR5: 235 case CARDBUS_CIS_ASI_ROM: 236 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 237 reg = CARDBUS_ROM_REG; 238 DPRINTF(("%s: reading CIS data from ROM\n", 239 sc->sc_dev.dv_xname)); 240 } else { 241 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 242 DPRINTF(("%s: reading CIS data from BAR%d\n", 243 sc->sc_dev.dv_xname, cardbus_space - 1)); 244 } 245 246 /* XXX zero register so mapreg_map doesn't get confused by old 247 contents */ 248 cardbus_conf_write(cc, cf, tag, reg, 0); 249 if(Cardbus_mapreg_map(ca->ca_ct, reg, 250 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 251 0, 252 NULL, &bar_memh, &bar_addr, &bar_size)) { 253 printf("%s: failed to map memory\n", sc->sc_dev.dv_xname); 254 return 1; 255 } 256 257 258 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 259 cardbusreg_t exrom; 260 int save; 261 struct cardbus_rom_image_head rom_image; 262 struct cardbus_rom_image *p; 263 264 save = splhigh(); 265 /* enable rom address decoder */ 266 exrom = cardbus_conf_read(cc, cf, tag, reg); 267 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 268 269 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 270 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 271 command | CARDBUS_COMMAND_MEM_ENABLE); 272 273 if(cardbus_read_exrom(ca->ca_memt, bar_memh, &rom_image)) 274 goto out; 275 276 for(p = SIMPLEQ_FIRST(&rom_image); 277 p; 278 p = SIMPLEQ_NEXT(p, next)) { 279 if(p->rom_image == CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 280 bus_space_read_region_1(p->romt, p->romh, 281 CARDBUS_CIS_ADDR(cis_ptr), 282 tuples, 256); 283 found++; 284 } 285 break; 286 } 287 while((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 288 SIMPLEQ_REMOVE_HEAD(&rom_image, p, next); 289 free(p, M_DEVBUF); 290 } 291 out: 292 exrom = cardbus_conf_read(cc, cf, tag, reg); 293 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 294 splx(save); 295 } else { 296 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 297 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 298 command | CARDBUS_COMMAND_MEM_ENABLE); 299 /* XXX byte order? */ 300 bus_space_read_region_1(ca->ca_memt, bar_memh, 301 cis_ptr, tuples, 256); 302 found++; 303 } 304 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 305 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 306 command & ~CARDBUS_COMMAND_MEM_ENABLE); 307 cardbus_conf_write(cc, cf, tag, reg, 0); 308 #if 0 309 /* XXX unmap memory */ 310 (*ca->ca_ct->ct_cf->cardbus_space_free)(ca->ca_ct, 311 ca->ca_ct->ct_sc->sc_rbus_memt, 312 bar_memh, bar_size); 313 #endif 314 break; 315 316 #ifdef DIAGNOSTIC 317 default: 318 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, cardbus_space); 319 #endif 320 } 321 return !found; 322 } 323 324 static void 325 parse_tuple(u_int8_t *tuple, int len, void *data) 326 { 327 #ifdef CARDBUS_DEBUG 328 static const char __func__[] = "parse_tuple"; 329 #endif 330 struct cardbus_cis_info *cis = data; 331 int bar_index; 332 int i; 333 char *p; 334 switch(tuple[0]) { 335 case PCMCIA_CISTPL_MANFID: 336 if(tuple[1] != 5) { 337 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 338 __func__, tuple[1])); 339 break; 340 } 341 cis->manufacturer = tuple[2] | (tuple[3] << 8); 342 cis->product = tuple[4] | (tuple[5] << 8); 343 break; 344 case PCMCIA_CISTPL_VERS_1: 345 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 346 i = 0; 347 p = cis->cis1_info_buf + 2; 348 while(i < sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 349 cis->cis1_info[i++] = p; 350 while(*p != '\0' && *p != '\xff') 351 p++; 352 if(*p == '\xff') 353 break; 354 p++; 355 } 356 break; 357 case PCMCIA_CISTPL_BAR: 358 if(tuple[1] != 6) { 359 DPRINTF(("%s: BAR with short length (%d)\n", __func__, tuple[1])); 360 break; 361 } 362 bar_index = tuple[2] & 7; 363 if(bar_index == 0) { 364 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 365 break; 366 } 367 bar_index--; 368 cis->bar[bar_index].flags = tuple[2]; 369 cis->bar[bar_index].size = (tuple[4] << 0) | 370 (tuple[5] << 8) | 371 (tuple[6] << 16) | 372 (tuple[7] << 24); 373 break; 374 case PCMCIA_CISTPL_FUNCID: 375 cis->funcid = tuple[2]; 376 break; 377 378 case PCMCIA_CISTPL_FUNCE: 379 if(cis->funcid == PCMCIA_FUNCTION_NETWORK && tuple[1] >= 8) { 380 if(tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 381 if(tuple[3] > sizeof(cis->funce.network.netid)) { 382 DPRINTF(("%s: unknown network id type (len = %d)\n", 383 __func__, tuple[3])); 384 } else { 385 memcpy(cis->funce.network.netid, 386 tuple + 4, tuple[3]); 387 } 388 } 389 } 390 break; 391 } 392 } 393 394 /* 395 * int cardbus_attach_card(struct cardbus_softc *sc) 396 * 397 * This function attaches the card on the slot: turns on power, 398 * reads and analyses tuple, sets consifuration index. 399 * 400 * This function returns the number of recognised device functions. 401 * If no functions are recognised, return 0. 402 */ 403 int 404 cardbus_attach_card(sc) 405 struct cardbus_softc *sc; 406 { 407 cardbus_chipset_tag_t cc; 408 cardbus_function_tag_t cf; 409 int cdstatus; 410 cardbustag_t tag; 411 cardbusreg_t id, class, cis_ptr; 412 cardbusreg_t bhlc; 413 u_int8_t tuple[2048]; 414 int function, nfunction; 415 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 416 struct device *csc; 417 int no_work_funcs = 0; 418 cardbus_devfunc_t ct; 419 420 cc = sc->sc_cc; 421 cf = sc->sc_cf; 422 423 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 424 425 /* inspect initial voltage */ 426 if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) { 427 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", sc->sc_dev.dv_unit)); 428 return 0; 429 } 430 431 enable_function(sc, cdstatus, 8); /* XXX use fake function 8 to 432 keep power on during whole 433 configuration */ 434 function = 0; 435 436 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 437 438 /* 439 * Wait until power comes up. Maxmum 500 ms. 440 */ 441 { 442 int i; 443 for (i = 0; i < 5; ++i) { 444 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 445 if (id != 0xffffffff && id != 0) { 446 break; 447 } 448 if (cold) { /* before kernel thread invoked */ 449 delay(100*1000); 450 } else { /* thread context */ 451 if (tsleep((void *)sc, PCATCH, "cardbus", hz/10) != EWOULDBLOCK) { 452 break; 453 } 454 } 455 } 456 if (i == 5) { 457 return 0; 458 } 459 } 460 461 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 462 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 463 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 464 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 465 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 466 } 467 468 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 469 470 for(function = 0; function < nfunction; function++) { 471 struct cardbus_attach_args ca; 472 473 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 474 475 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 476 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 477 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 478 479 /* Invalid vendor ID value? */ 480 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 481 continue; 482 } 483 484 DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 485 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 486 487 enable_function(sc, cdstatus, function); 488 489 /* clean up every BAR */ 490 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 491 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 492 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 493 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 494 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 495 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 496 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 497 498 /* 499 * We need to allocate the ct here, since we might 500 * need it when reading the CIS 501 */ 502 if (NULL == (ct = (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc), 503 M_DEVBUF, M_NOWAIT))) { 504 panic("no room for cardbus_tag"); 505 } 506 507 ct->ct_cc = sc->sc_cc; 508 ct->ct_cf = sc->sc_cf; 509 ct->ct_bus = sc->sc_bus; 510 ct->ct_dev = sc->sc_device; 511 ct->ct_func = function; 512 ct->ct_sc = sc; 513 ct->ct_next = NULL; 514 *previous_next = ct; 515 516 memset(&ca, 0, sizeof(ca)); 517 518 ca.ca_unit = sc->sc_dev.dv_unit; 519 ca.ca_ct = ct; 520 521 ca.ca_iot = sc->sc_iot; 522 ca.ca_memt = sc->sc_memt; 523 ca.ca_dmat = sc->sc_dmat; 524 525 ca.ca_tag = tag; 526 ca.ca_device = sc->sc_device; 527 ca.ca_function = function; 528 ca.ca_id = id; 529 ca.ca_class = class; 530 531 ca.ca_intrline = sc->sc_intrline; 532 533 bzero(tuple, 2048); 534 535 if(cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 536 printf("cardbus_attach_card: failed to read CIS\n"); 537 } else { 538 #ifdef CARDBUS_DEBUG 539 decode_tuples(tuple, 2048, print_tuple, NULL); 540 #endif 541 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 542 } 543 544 if (NULL == (csc = config_found_sm((void *)sc, &ca, cardbusprint, cardbussubmatch))) { 545 /* do not match */ 546 disable_function(sc, function); 547 free(ct, M_DEVBUF); 548 *previous_next = NULL; 549 } else { 550 /* found */ 551 previous_next = &(ct->ct_next); 552 ct->ct_device = csc; 553 ++no_work_funcs; 554 } 555 } 556 /* 557 * XXX power down pseudo function 8 (this will power down the card 558 * if no functions were attached). 559 */ 560 disable_function(sc, 8); 561 562 return no_work_funcs; 563 } 564 565 566 static int 567 #ifdef __BROKEN_INDIRECT_CONFIG 568 cardbussubmatch(parent, match, aux) 569 #else 570 cardbussubmatch(parent, cf, aux) 571 #endif 572 struct device *parent; 573 #ifdef __BROKEN_INDIRECT_CONFIG 574 void *match; 575 #else 576 struct cfdata *cf; 577 #endif 578 void *aux; 579 { 580 #ifdef __BROKEN_INDIRECT_CONFIG 581 struct cfdata *cf = match; 582 #endif 583 struct cardbus_attach_args *ca = aux; 584 585 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 586 cf->cardbuscf_dev != ca->ca_unit) { 587 return 0; 588 } 589 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 590 cf->cardbuscf_function != ca->ca_function) { 591 return 0; 592 } 593 594 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 595 } 596 597 598 599 static int 600 cardbusprint(aux, pnp) 601 void *aux; 602 const char *pnp; 603 { 604 struct cardbus_attach_args *ca = aux; 605 char devinfo[256]; 606 int i; 607 if (pnp) { 608 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 609 for (i = 0; i < 4; i++) { 610 if (ca->ca_cis.cis1_info[i] == NULL) 611 break; 612 if (i) 613 printf(", "); 614 printf("%s", ca->ca_cis.cis1_info[i]); 615 } 616 if (i) 617 printf(" "); 618 printf("(manufacturer 0x%x, product 0x%x)", ca->ca_cis.manufacturer, 619 ca->ca_cis.product); 620 printf(" %s at %s", devinfo, pnp); 621 } 622 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 623 624 return UNCONF; 625 } 626 627 628 629 630 631 632 /* 633 * void cardbus_detach_card(struct cardbus_softc *sc) 634 * 635 * This function detaches the card on the slot: detach device data 636 * structure and turns off the power. 637 * 638 * This function must not be called under interrupt context. 639 */ 640 void 641 cardbus_detach_card(sc) 642 struct cardbus_softc *sc; 643 { 644 struct cardbus_devfunc *ct, *ct_next, **prev_next; 645 646 prev_next = &(sc->sc_funcs->ct_next); 647 648 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 649 struct device *fndev = ct->ct_device; 650 ct_next = ct->ct_next; 651 652 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, fndev->dv_xname)); 653 /* call device detach function */ 654 655 if (0 != config_detach(fndev, 0)) { 656 printf("%s: cannot detaching dev %s, function %d\n", 657 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 658 prev_next = &(ct->ct_next); 659 } else { 660 sc->sc_poweron_func &= ~(1 << ct->ct_func); 661 *prev_next = ct->ct_next; 662 free(ct, M_DEVBUF); 663 } 664 } 665 666 sc->sc_poweron_func = 0; 667 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); 668 } 669 670 671 672 673 /* 674 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 675 * Interrupt handler of pccard. 676 * args: 677 * cardbus_chipset_tag_t *cc 678 * int irq: 679 */ 680 void * 681 cardbus_intr_establish(cc, cf, irq, level, func, arg) 682 cardbus_chipset_tag_t cc; 683 cardbus_function_tag_t cf; 684 cardbus_intr_handle_t irq; 685 int level; 686 int (*func) __P((void *)); 687 void *arg; 688 { 689 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 690 691 return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg); 692 } 693 694 695 696 /* 697 * void cardbus_intr_disestablish(cc, cf, handler) 698 * Interrupt handler of pccard. 699 * args: 700 * cardbus_chipset_tag_t *cc 701 */ 702 void 703 cardbus_intr_disestablish(cc, cf, handler) 704 cardbus_chipset_tag_t cc; 705 cardbus_function_tag_t cf; 706 void *handler; 707 { 708 DPRINTF(("- pccard_intr_disestablish\n")); 709 710 (*cf->cardbus_intr_disestablish)(cc, handler); 711 return; 712 } 713 714 715 716 /* XXX this should be merged with cardbus_function_{enable,disable}, 717 but we don't have a ct when these functions are called */ 718 719 static void 720 enable_function(sc, cdstatus, function) 721 struct cardbus_softc *sc; 722 int cdstatus; 723 int function; 724 { 725 726 if(sc->sc_poweron_func == 0) { 727 if (cdstatus & CARDBUS_3V_CARD) { 728 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V); 729 } 730 (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 731 } 732 sc->sc_poweron_func |= (1 << function); 733 } 734 735 static void 736 disable_function(sc, function) 737 struct cardbus_softc *sc; 738 int function; 739 { 740 741 sc->sc_poweron_func &= ~(1 << function); 742 if(sc->sc_poweron_func == 0) { 743 /* power-off because no functions are enabled */ 744 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V); 745 } 746 } 747 748 /* 749 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 750 * 751 * This function enables a function on a card. When no power is 752 * applied on the card, power will be applied on it. 753 */ 754 int 755 cardbus_function_enable(sc, func) 756 struct cardbus_softc *sc; 757 int func; 758 { 759 cardbus_chipset_tag_t cc = sc->sc_cc; 760 cardbus_function_tag_t cf = sc->sc_cf; 761 cardbusreg_t command; 762 cardbustag_t tag; 763 764 DPRINTF(("entering cardbus_function_enable... ")); 765 766 /* entering critical area */ 767 768 enable_function(sc, CARDBUS_3V_CARD, func); /* XXX: sc_vold should be used */ 769 770 /* exiting critical area */ 771 772 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 773 774 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 775 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 776 777 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 778 779 cardbus_free_tag(cc, cf, tag); 780 781 DPRINTF(("%x\n", sc->sc_poweron_func)); 782 783 return 0; 784 } 785 786 787 /* 788 * int cardbus_function_disable(struct cardbus_softc *, int func) 789 * 790 * This function disable a function on a card. When no functions are 791 * enabled, it turns off the power. 792 */ 793 int 794 cardbus_function_disable(sc, func) 795 struct cardbus_softc *sc; 796 int func; 797 { 798 799 DPRINTF(("entering cardbus_function_disable... ")); 800 801 disable_function(sc, func); 802 803 return 0; 804 } 805 806 807 /* 808 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 809 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 810 * cardbusreg_t *value) 811 * 812 * Find the specified PCI capability. 813 */ 814 int 815 cardbus_get_capability(cc, cf, tag, capid, offset, value) 816 cardbus_chipset_tag_t cc; 817 cardbus_function_tag_t cf; 818 cardbustag_t tag; 819 int capid; 820 int *offset; 821 cardbusreg_t *value; 822 { 823 cardbusreg_t reg; 824 unsigned int ofs; 825 826 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 827 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 828 return (0); 829 830 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 831 PCI_CAPLISTPTR_REG)); 832 while (ofs != 0) { 833 #ifdef DIAGNOSTIC 834 if ((ofs & 3) || (ofs < 0x40)) 835 panic("cardbus_get_capability"); 836 #endif 837 reg = cardbus_conf_read(cc, cf, tag, ofs); 838 if (PCI_CAPLIST_CAP(reg) == capid) { 839 if (offset) 840 *offset = ofs; 841 if (value) 842 *value = reg; 843 return (1); 844 } 845 ofs = PCI_CAPLIST_NEXT(reg); 846 } 847 848 return (0); 849 } 850 851 852 /* 853 * below this line, there are some functions for decoding tuples. 854 * They should go out from this file. 855 */ 856 857 static u_int8_t * 858 decode_tuple __P((u_int8_t *tuple, tuple_decode_func func, void *data)); 859 860 static int 861 decode_tuples(tuple, buflen, func, data) 862 u_int8_t *tuple; 863 int buflen; 864 tuple_decode_func func; 865 void *data; 866 { 867 u_int8_t *tp = tuple; 868 869 if (CISTPL_LINKTARGET != *tuple) { 870 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 871 return 0; 872 } 873 874 while (NULL != (tp = decode_tuple(tp, func, data))) { 875 if (tuple + buflen < tp) { 876 break; 877 } 878 } 879 880 return 1; 881 } 882 883 884 static u_int8_t * 885 decode_tuple(tuple, func, data) 886 u_int8_t *tuple; 887 tuple_decode_func func; 888 void *data; 889 { 890 u_int8_t type; 891 u_int8_t len; 892 893 type = tuple[0]; 894 len = tuple[1] + 2; 895 896 (*func)(tuple, len, data); 897 898 if (CISTPL_END == type) { 899 return NULL; 900 } 901 902 return tuple + len; 903 } 904 905 906 #ifdef CARDBUS_DEBUG 907 static char *tuple_name __P((int type)); 908 909 static char * 910 tuple_name(type) 911 int type; 912 { 913 static char *tuple_name_s [] = { 914 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 915 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 916 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 917 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 918 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 919 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 920 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 921 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 922 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 923 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 924 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 925 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 926 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 927 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 928 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 929 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 930 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 931 "DATE", "BATTERY", "ORG" 932 }; 933 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 934 935 if (type > 0 && type < NAME_LEN(tuple_name_s)) { 936 return tuple_name_s[type]; 937 } else if (0xff == type) { 938 return "END"; 939 } else { 940 return "Reserved"; 941 } 942 } 943 944 static void 945 print_tuple(tuple, len, data) 946 u_int8_t *tuple; 947 int len; 948 void *data; 949 { 950 int i; 951 952 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 953 954 for (i = 0; i < len; ++i) { 955 if (i % 16 == 0) { 956 printf(" 0x%2x:", i); 957 } 958 printf(" %x",tuple[i]); 959 if (i % 16 == 15) { 960 printf("\n"); 961 } 962 } 963 if (i % 16 != 0) { 964 printf("\n"); 965 } 966 } 967 968 #endif 969 970
Indexes created Tue Sep 30 10:09:55 GMT 2025