cardbus.c revision 1.24
1 /* $NetBSD: cardbus.c,v 1.24 2000/04/02 19:11:37 mycroft 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 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> 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 STATIC void cardbusattach __P((struct device *, struct device *, void *)); 68 /* STATIC int cardbusprint __P((void *, const char *)); */ 69 int cardbus_attach_card __P((struct cardbus_softc *)); 70 71 #if !defined __BROKEN_INDIRECT_CONFIG 72 STATIC int cardbusmatch __P((struct device *, struct cfdata *, void *)); 73 static int cardbussubmatch __P((struct device *, struct cfdata *, void *)); 74 #else 75 STATIC int cardbusmatch __P((struct device *, void *, void *)); 76 static int cardbussubmatch __P((struct device *, void *, void *)); 77 #endif 78 static int cardbusprint __P((void *, const char *)); 79 80 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 81 82 static int decode_tuples __P((u_int8_t *, int, tuple_decode_func, void*)); 83 #ifdef CARDBUS_DEBUG 84 static void print_tuple __P((u_int8_t*, int, void*)); 85 #endif 86 87 static int cardbus_read_tuples __P((struct cardbus_attach_args *, 88 cardbusreg_t, u_int8_t *, size_t)); 89 90 static void enable_function __P((struct cardbus_softc *, int, int)); 91 static void disable_function __P((struct cardbus_softc *, int)); 92 93 94 struct cfattach cardbus_ca = { 95 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 96 }; 97 98 #ifndef __NetBSD_Version__ 99 struct cfdriver cardbus_cd = { 100 NULL, "cardbus", DV_DULL 101 }; 102 #endif 103 104 105 STATIC int 106 #if defined __BROKEN_INDIRECT_CONFIG 107 cardbusmatch(parent, match, aux) 108 struct device *parent; 109 void *match; 110 void *aux; 111 #else 112 cardbusmatch(parent, cf, aux) 113 struct device *parent; 114 struct cfdata *cf; 115 void *aux; 116 #endif 117 { 118 #if defined __BROKEN_INDIRECT_CONFIG 119 struct cfdata *cf = match; 120 #endif 121 struct cbslot_attach_args *cba = aux; 122 123 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 124 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 125 cba->cba_busname, cf->cf_driver->cd_name)); 126 return 0; 127 } 128 129 return 1; 130 } 131 132 133 134 STATIC void 135 cardbusattach(parent, self, aux) 136 struct device *parent; 137 struct device *self; 138 void *aux; 139 { 140 struct cardbus_softc *sc = (void *)self; 141 struct cbslot_attach_args *cba = aux; 142 int cdstatus; 143 144 sc->sc_bus = cba->cba_bus; 145 sc->sc_device = 0; 146 sc->sc_intrline = cba->cba_intrline; 147 sc->sc_cacheline = cba->cba_cacheline; 148 sc->sc_lattimer = cba->cba_lattimer; 149 150 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 151 printf(" cacheline 0x%x, lattimer 0x%x\n", sc->sc_cacheline,sc->sc_lattimer); 152 153 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 154 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 155 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 156 sc->sc_cc = cba->cba_cc; 157 sc->sc_cf = cba->cba_cf; 158 159 #if rbus 160 sc->sc_rbus_iot = cba->cba_rbus_iot; 161 sc->sc_rbus_memt = cba->cba_rbus_memt; 162 #endif 163 164 sc->sc_funcs = NULL; 165 166 cdstatus = 0; 167 } 168 169 static int 170 cardbus_read_tuples(ca, cis_ptr, tuples, len) 171 struct cardbus_attach_args *ca; 172 cardbusreg_t cis_ptr; 173 u_int8_t *tuples; 174 size_t len; 175 { 176 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 177 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 178 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 179 cardbustag_t tag = ca->ca_tag; 180 cardbusreg_t command; 181 int found = 0; 182 183 int i, j; 184 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 185 bus_space_handle_t bar_memh; 186 bus_size_t bar_size; 187 bus_addr_t bar_addr; 188 189 int reg; 190 191 memset(tuples, 0, len); 192 193 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 194 195 switch(cardbus_space) { 196 case CARDBUS_CIS_ASI_TUPLE: 197 DPRINTF(("%s: reading CIS data from configuration space\n", 198 sc->sc_dev.dv_xname)); 199 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 200 u_int32_t e = (cf->cardbus_conf_read)(cc, tag, i); 201 tuples[j] = 0xff & e; 202 e >>= 8; 203 tuples[j + 1] = 0xff & e; 204 e >>= 8; 205 tuples[j + 2] = 0xff & e; 206 e >>= 8; 207 tuples[j + 3] = 0xff & e; 208 j += 4; 209 } 210 found++; 211 break; 212 213 case CARDBUS_CIS_ASI_BAR0: 214 case CARDBUS_CIS_ASI_BAR1: 215 case CARDBUS_CIS_ASI_BAR2: 216 case CARDBUS_CIS_ASI_BAR3: 217 case CARDBUS_CIS_ASI_BAR4: 218 case CARDBUS_CIS_ASI_BAR5: 219 case CARDBUS_CIS_ASI_ROM: 220 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 221 reg = CARDBUS_ROM_REG; 222 DPRINTF(("%s: reading CIS data from ROM\n", 223 sc->sc_dev.dv_xname)); 224 } else { 225 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 226 DPRINTF(("%s: reading CIS data from BAR%d\n", 227 sc->sc_dev.dv_xname, cardbus_space - 1)); 228 } 229 230 /* XXX zero register so mapreg_map doesn't get confused by old 231 contents */ 232 cardbus_conf_write(cc, cf, tag, reg, 0); 233 if(Cardbus_mapreg_map(ca->ca_ct, reg, 234 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 235 0, 236 NULL, &bar_memh, &bar_addr, &bar_size)) { 237 printf("%s: failed to map memory\n", sc->sc_dev.dv_xname); 238 return 1; 239 } 240 241 242 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 243 cardbusreg_t exrom; 244 int save; 245 struct cardbus_rom_image_head rom_image; 246 struct cardbus_rom_image *p; 247 248 save = splhigh(); 249 /* enable rom address decoder */ 250 exrom = cardbus_conf_read(cc, cf, tag, reg); 251 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 252 253 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 254 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 255 command | CARDBUS_COMMAND_MEM_ENABLE); 256 257 if(cardbus_read_exrom(ca->ca_memt, bar_memh, &rom_image)) 258 goto out; 259 260 for(p = SIMPLEQ_FIRST(&rom_image); 261 p; 262 p = SIMPLEQ_NEXT(p, next)) { 263 if(p->rom_image == CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 264 bus_space_read_region_1(p->romt, p->romh, 265 CARDBUS_CIS_ADDR(cis_ptr), 266 tuples, 256); 267 found++; 268 } 269 break; 270 } 271 while((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 272 SIMPLEQ_REMOVE_HEAD(&rom_image, p, next); 273 free(p, M_DEVBUF); 274 } 275 out: 276 exrom = cardbus_conf_read(cc, cf, tag, reg); 277 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 278 splx(save); 279 } else { 280 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 281 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 282 command | CARDBUS_COMMAND_MEM_ENABLE); 283 /* XXX byte order? */ 284 bus_space_read_region_1(ca->ca_memt, bar_memh, 285 cis_ptr, tuples, 256); 286 found++; 287 } 288 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 289 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 290 command & ~CARDBUS_COMMAND_MEM_ENABLE); 291 cardbus_conf_write(cc, cf, tag, reg, 0); 292 #if 0 293 /* XXX unmap memory */ 294 (*ca->ca_ct->ct_cf->cardbus_space_free)(ca->ca_ct, 295 ca->ca_ct->ct_sc->sc_rbus_memt, 296 bar_memh, bar_size); 297 #endif 298 break; 299 300 #ifdef DIAGNOSTIC 301 default: 302 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, cardbus_space); 303 #endif 304 } 305 return !found; 306 } 307 308 static void 309 parse_tuple(u_int8_t *tuple, int len, void *data) 310 { 311 #ifdef CARDBUS_DEBUG 312 static const char __func__[] = "parse_tuple"; 313 #endif 314 struct cardbus_cis_info *cis = data; 315 int bar_index; 316 int i; 317 char *p; 318 switch(tuple[0]) { 319 case PCMCIA_CISTPL_MANFID: 320 if(tuple[1] != 5) { 321 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 322 __func__, tuple[1])); 323 break; 324 } 325 cis->manufacturer = tuple[2] | (tuple[3] << 8); 326 cis->product = tuple[4] | (tuple[5] << 8); 327 break; 328 case PCMCIA_CISTPL_VERS_1: 329 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 330 i = 0; 331 p = cis->cis1_info_buf + 2; 332 while(i < sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 333 cis->cis1_info[i++] = p; 334 while(*p != '\0' && *p != '\xff') 335 p++; 336 if(*p == '\xff') 337 break; 338 p++; 339 } 340 break; 341 case PCMCIA_CISTPL_BAR: 342 if(tuple[1] != 6) { 343 DPRINTF(("%s: BAR with short length (%d)\n", __func__, tuple[1])); 344 break; 345 } 346 bar_index = tuple[2] & 7; 347 if(bar_index == 0) { 348 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 349 break; 350 } 351 bar_index--; 352 cis->bar[bar_index].flags = tuple[2]; 353 cis->bar[bar_index].size = (tuple[4] << 0) | 354 (tuple[5] << 8) | 355 (tuple[6] << 16) | 356 (tuple[7] << 24); 357 break; 358 case PCMCIA_CISTPL_FUNCID: 359 cis->funcid = tuple[2]; 360 break; 361 362 case PCMCIA_CISTPL_FUNCE: 363 if(cis->funcid == PCMCIA_FUNCTION_NETWORK && tuple[1] >= 8) { 364 if(tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 365 if(tuple[3] > sizeof(cis->funce.network.netid)) { 366 DPRINTF(("%s: unknown network id type (len = %d)\n", 367 __func__, tuple[3])); 368 } else { 369 cis->funce.network.netid_present = 1; 370 memcpy(cis->funce.network.netid, 371 tuple + 4, tuple[3]); 372 } 373 } 374 } 375 break; 376 } 377 } 378 379 /* 380 * int cardbus_attach_card(struct cardbus_softc *sc) 381 * 382 * This function attaches the card on the slot: turns on power, 383 * reads and analyses tuple, sets consifuration index. 384 * 385 * This function returns the number of recognised device functions. 386 * If no functions are recognised, return 0. 387 */ 388 int 389 cardbus_attach_card(sc) 390 struct cardbus_softc *sc; 391 { 392 cardbus_chipset_tag_t cc; 393 cardbus_function_tag_t cf; 394 int cdstatus; 395 cardbustag_t tag; 396 cardbusreg_t id, class, cis_ptr; 397 cardbusreg_t bhlc; 398 u_int8_t tuple[2048]; 399 int function, nfunction; 400 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 401 struct device *csc; 402 int no_work_funcs = 0; 403 cardbus_devfunc_t ct; 404 405 cc = sc->sc_cc; 406 cf = sc->sc_cf; 407 408 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 409 410 /* inspect initial voltage */ 411 if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) { 412 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", sc->sc_dev.dv_unit)); 413 return 0; 414 } 415 416 enable_function(sc, cdstatus, 8); /* XXX use fake function 8 to 417 keep power on during whole 418 configuration */ 419 function = 0; 420 421 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 422 423 /* 424 * Wait until power comes up. Maxmum 500 ms. 425 */ 426 { 427 int i; 428 for (i = 0; i < 5; ++i) { 429 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 430 if (id != 0xffffffff && id != 0) { 431 break; 432 } 433 if (cold) { /* before kernel thread invoked */ 434 delay(100*1000); 435 } else { /* thread context */ 436 if (tsleep((void *)sc, PCATCH, "cardbus", hz/10) != EWOULDBLOCK) { 437 break; 438 } 439 } 440 } 441 if (i == 5) { 442 return 0; 443 } 444 } 445 446 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 447 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 448 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 449 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 450 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 451 } 452 453 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 454 455 for(function = 0; function < nfunction; function++) { 456 struct cardbus_attach_args ca; 457 458 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 459 460 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 461 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 462 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 463 464 /* Invalid vendor ID value? */ 465 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 466 continue; 467 } 468 469 DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 470 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 471 472 enable_function(sc, cdstatus, function); 473 474 /* clean up every BAR */ 475 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 476 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 477 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 478 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 479 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 480 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 481 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 482 483 /* 484 * We need to allocate the ct here, since we might 485 * need it when reading the CIS 486 */ 487 if (NULL == (ct = (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc), 488 M_DEVBUF, M_NOWAIT))) { 489 panic("no room for cardbus_tag"); 490 } 491 492 ct->ct_cc = sc->sc_cc; 493 ct->ct_cf = sc->sc_cf; 494 ct->ct_bus = sc->sc_bus; 495 ct->ct_dev = sc->sc_device; 496 ct->ct_func = function; 497 ct->ct_sc = sc; 498 ct->ct_next = NULL; 499 *previous_next = ct; 500 501 memset(&ca, 0, sizeof(ca)); 502 503 ca.ca_unit = sc->sc_dev.dv_unit; 504 ca.ca_ct = ct; 505 506 ca.ca_iot = sc->sc_iot; 507 ca.ca_memt = sc->sc_memt; 508 ca.ca_dmat = sc->sc_dmat; 509 510 ca.ca_tag = tag; 511 ca.ca_device = sc->sc_device; 512 ca.ca_function = function; 513 ca.ca_id = id; 514 ca.ca_class = class; 515 516 ca.ca_intrline = sc->sc_intrline; 517 518 bzero(tuple, 2048); 519 520 if(cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 521 printf("cardbus_attach_card: failed to read CIS\n"); 522 } else { 523 #ifdef CARDBUS_DEBUG 524 decode_tuples(tuple, 2048, print_tuple, NULL); 525 #endif 526 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 527 } 528 529 if (NULL == (csc = config_found_sm((void *)sc, &ca, cardbusprint, cardbussubmatch))) { 530 /* do not match */ 531 disable_function(sc, function); 532 free(ct, M_DEVBUF); 533 *previous_next = NULL; 534 } else { 535 /* found */ 536 previous_next = &(ct->ct_next); 537 ct->ct_device = csc; 538 ++no_work_funcs; 539 } 540 } 541 /* 542 * XXX power down pseudo function 8 (this will power down the card 543 * if no functions were attached). 544 */ 545 disable_function(sc, 8); 546 547 return no_work_funcs; 548 } 549 550 551 static int 552 #ifdef __BROKEN_INDIRECT_CONFIG 553 cardbussubmatch(parent, match, aux) 554 #else 555 cardbussubmatch(parent, cf, aux) 556 #endif 557 struct device *parent; 558 #ifdef __BROKEN_INDIRECT_CONFIG 559 void *match; 560 #else 561 struct cfdata *cf; 562 #endif 563 void *aux; 564 { 565 #ifdef __BROKEN_INDIRECT_CONFIG 566 struct cfdata *cf = match; 567 #endif 568 struct cardbus_attach_args *ca = aux; 569 570 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 571 cf->cardbuscf_dev != ca->ca_unit) { 572 return 0; 573 } 574 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 575 cf->cardbuscf_function != ca->ca_function) { 576 return 0; 577 } 578 579 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 580 } 581 582 583 584 static int 585 cardbusprint(aux, pnp) 586 void *aux; 587 const char *pnp; 588 { 589 struct cardbus_attach_args *ca = aux; 590 char devinfo[256]; 591 int i; 592 if (pnp) { 593 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 594 for (i = 0; i < 4; i++) { 595 if (ca->ca_cis.cis1_info[i] == NULL) 596 break; 597 if (i) 598 printf(", "); 599 printf("%s", ca->ca_cis.cis1_info[i]); 600 } 601 if (i) 602 printf(" "); 603 printf("(manufacturer 0x%x, product 0x%x)", ca->ca_cis.manufacturer, 604 ca->ca_cis.product); 605 printf(" %s at %s", devinfo, pnp); 606 } 607 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 608 609 return UNCONF; 610 } 611 612 613 614 615 616 617 /* 618 * void cardbus_detach_card(struct cardbus_softc *sc) 619 * 620 * This function detaches the card on the slot: detach device data 621 * structure and turns off the power. 622 * 623 * This function must not be called under interrupt context. 624 */ 625 void 626 cardbus_detach_card(sc) 627 struct cardbus_softc *sc; 628 { 629 struct cardbus_devfunc *ct, *ct_next, **prev_next; 630 631 prev_next = &(sc->sc_funcs->ct_next); 632 633 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 634 struct device *fndev = ct->ct_device; 635 ct_next = ct->ct_next; 636 637 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, fndev->dv_xname)); 638 /* call device detach function */ 639 640 if (0 != config_detach(fndev, 0)) { 641 printf("%s: cannot detaching dev %s, function %d\n", 642 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 643 prev_next = &(ct->ct_next); 644 } else { 645 sc->sc_poweron_func &= ~(1 << ct->ct_func); 646 *prev_next = ct->ct_next; 647 free(ct, M_DEVBUF); 648 } 649 } 650 651 sc->sc_poweron_func = 0; 652 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); 653 } 654 655 656 657 658 /* 659 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 660 * Interrupt handler of pccard. 661 * args: 662 * cardbus_chipset_tag_t *cc 663 * int irq: 664 */ 665 void * 666 cardbus_intr_establish(cc, cf, irq, level, func, arg) 667 cardbus_chipset_tag_t cc; 668 cardbus_function_tag_t cf; 669 cardbus_intr_handle_t irq; 670 int level; 671 int (*func) __P((void *)); 672 void *arg; 673 { 674 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 675 676 return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg); 677 } 678 679 680 681 /* 682 * void cardbus_intr_disestablish(cc, cf, handler) 683 * Interrupt handler of pccard. 684 * args: 685 * cardbus_chipset_tag_t *cc 686 */ 687 void 688 cardbus_intr_disestablish(cc, cf, handler) 689 cardbus_chipset_tag_t cc; 690 cardbus_function_tag_t cf; 691 void *handler; 692 { 693 DPRINTF(("- pccard_intr_disestablish\n")); 694 695 (*cf->cardbus_intr_disestablish)(cc, handler); 696 return; 697 } 698 699 700 701 /* XXX this should be merged with cardbus_function_{enable,disable}, 702 but we don't have a ct when these functions are called */ 703 704 static void 705 enable_function(sc, cdstatus, function) 706 struct cardbus_softc *sc; 707 int cdstatus; 708 int function; 709 { 710 711 if (sc->sc_poweron_func == 0) { 712 /* switch to 3V and/or wait for power to stabilize */ 713 if (cdstatus & CARDBUS_3V_CARD) { 714 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V); 715 } else { 716 /* No cards other than 3.3V cards. */ 717 return; 718 } 719 (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 720 } 721 sc->sc_poweron_func |= (1 << function); 722 } 723 724 static void 725 disable_function(sc, function) 726 struct cardbus_softc *sc; 727 int function; 728 { 729 730 sc->sc_poweron_func &= ~(1 << function); 731 if (sc->sc_poweron_func == 0) { 732 /* power-off because no functions are enabled */ 733 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V); 734 } 735 } 736 737 /* 738 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 739 * 740 * This function enables a function on a card. When no power is 741 * applied on the card, power will be applied on it. 742 */ 743 int 744 cardbus_function_enable(sc, func) 745 struct cardbus_softc *sc; 746 int func; 747 { 748 cardbus_chipset_tag_t cc = sc->sc_cc; 749 cardbus_function_tag_t cf = sc->sc_cf; 750 cardbusreg_t command; 751 cardbustag_t tag; 752 753 DPRINTF(("entering cardbus_function_enable... ")); 754 755 /* entering critical area */ 756 757 enable_function(sc, CARDBUS_3V_CARD, func); /* XXX: sc_vold should be used */ 758 759 /* exiting critical area */ 760 761 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 762 763 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 764 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 765 766 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 767 768 cardbus_free_tag(cc, cf, tag); 769 770 DPRINTF(("%x\n", sc->sc_poweron_func)); 771 772 return 0; 773 } 774 775 776 /* 777 * int cardbus_function_disable(struct cardbus_softc *, int func) 778 * 779 * This function disable a function on a card. When no functions are 780 * enabled, it turns off the power. 781 */ 782 int 783 cardbus_function_disable(sc, func) 784 struct cardbus_softc *sc; 785 int func; 786 { 787 788 DPRINTF(("entering cardbus_function_disable... ")); 789 790 disable_function(sc, func); 791 792 return 0; 793 } 794 795 796 /* 797 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 798 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 799 * cardbusreg_t *value) 800 * 801 * Find the specified PCI capability. 802 */ 803 int 804 cardbus_get_capability(cc, cf, tag, capid, offset, value) 805 cardbus_chipset_tag_t cc; 806 cardbus_function_tag_t cf; 807 cardbustag_t tag; 808 int capid; 809 int *offset; 810 cardbusreg_t *value; 811 { 812 cardbusreg_t reg; 813 unsigned int ofs; 814 815 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 816 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 817 return (0); 818 819 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 820 PCI_CAPLISTPTR_REG)); 821 while (ofs != 0) { 822 #ifdef DIAGNOSTIC 823 if ((ofs & 3) || (ofs < 0x40)) 824 panic("cardbus_get_capability"); 825 #endif 826 reg = cardbus_conf_read(cc, cf, tag, ofs); 827 if (PCI_CAPLIST_CAP(reg) == capid) { 828 if (offset) 829 *offset = ofs; 830 if (value) 831 *value = reg; 832 return (1); 833 } 834 ofs = PCI_CAPLIST_NEXT(reg); 835 } 836 837 return (0); 838 } 839 840 841 /* 842 * below this line, there are some functions for decoding tuples. 843 * They should go out from this file. 844 */ 845 846 static u_int8_t * 847 decode_tuple __P((u_int8_t *tuple, tuple_decode_func func, void *data)); 848 849 static int 850 decode_tuples(tuple, buflen, func, data) 851 u_int8_t *tuple; 852 int buflen; 853 tuple_decode_func func; 854 void *data; 855 { 856 u_int8_t *tp = tuple; 857 858 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 859 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 860 return 0; 861 } 862 863 while (NULL != (tp = decode_tuple(tp, func, data))) { 864 if (tuple + buflen < tp) { 865 break; 866 } 867 } 868 869 return 1; 870 } 871 872 873 static u_int8_t * 874 decode_tuple(tuple, func, data) 875 u_int8_t *tuple; 876 tuple_decode_func func; 877 void *data; 878 { 879 u_int8_t type; 880 u_int8_t len; 881 882 type = tuple[0]; 883 len = tuple[1] + 2; 884 885 (*func)(tuple, len, data); 886 887 if (PCMCIA_CISTPL_END == type) { 888 return NULL; 889 } 890 891 return tuple + len; 892 } 893 894 895 #ifdef CARDBUS_DEBUG 896 static char *tuple_name __P((int type)); 897 898 static char * 899 tuple_name(type) 900 int type; 901 { 902 static char *tuple_name_s [] = { 903 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 904 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 905 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 906 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 907 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 908 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 909 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 910 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 911 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 912 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 913 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 914 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 915 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 916 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 917 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 918 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 919 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 920 "DATE", "BATTERY", "ORG" 921 }; 922 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 923 924 if (type > 0 && type < NAME_LEN(tuple_name_s)) { 925 return tuple_name_s[type]; 926 } else if (0xff == type) { 927 return "END"; 928 } else { 929 return "Reserved"; 930 } 931 } 932 933 static void 934 print_tuple(tuple, len, data) 935 u_int8_t *tuple; 936 int len; 937 void *data; 938 { 939 int i; 940 941 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 942 943 for (i = 0; i < len; ++i) { 944 if (i % 16 == 0) { 945 printf(" 0x%2x:", i); 946 } 947 printf(" %x",tuple[i]); 948 if (i % 16 == 15) { 949 printf("\n"); 950 } 951 } 952 if (i % 16 != 0) { 953 printf("\n"); 954 } 955 } 956 957 #endif 958
Indexes created Tue Sep 30 20:09:53 GMT 2025