cardbus.c revision 1.17
1 /* $NetBSD: cardbus.c,v 1.17 2000/01/13 10:27:31 joda Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998 and 1999 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 #define DDELAY(x) delay((x)*1000*1000) 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 delay(100*1000); /* or tsleep */ 449 } 450 if (i == 5) { 451 return 0; 452 } 453 } 454 455 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 456 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 457 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 458 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 459 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 460 } 461 462 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 463 464 for(function = 0; function < nfunction; function++) { 465 struct cardbus_attach_args ca; 466 467 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 468 469 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 470 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 471 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 472 473 /* Invalid vendor ID value? */ 474 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 475 continue; 476 } 477 478 DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 479 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 480 481 enable_function(sc, cdstatus, function); 482 483 /* clean up every BAR */ 484 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 485 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 486 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 487 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 488 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 489 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 490 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 491 492 /* 493 * We need to allocate the ct here, since we might 494 * need it when reading the CIS 495 */ 496 if (NULL == (ct = (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc), 497 M_DEVBUF, M_NOWAIT))) { 498 panic("no room for cardbus_tag"); 499 } 500 501 ct->ct_cc = sc->sc_cc; 502 ct->ct_cf = sc->sc_cf; 503 ct->ct_bus = sc->sc_bus; 504 ct->ct_dev = sc->sc_device; 505 ct->ct_func = function; 506 ct->ct_sc = sc; 507 ct->ct_next = NULL; 508 *previous_next = ct; 509 510 memset(&ca, 0, sizeof(ca)); 511 512 ca.ca_unit = sc->sc_dev.dv_unit; 513 ca.ca_ct = ct; 514 515 ca.ca_iot = sc->sc_iot; 516 ca.ca_memt = sc->sc_memt; 517 ca.ca_dmat = sc->sc_dmat; 518 519 ca.ca_tag = tag; 520 ca.ca_device = sc->sc_device; 521 ca.ca_function = function; 522 ca.ca_id = id; 523 ca.ca_class = class; 524 525 ca.ca_intrline = sc->sc_intrline; 526 527 bzero(tuple, 2048); 528 529 if(cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 530 printf("cardbus_attach_card: failed to read CIS\n"); 531 } else { 532 #ifdef CARDBUS_DEBUG 533 decode_tuples(tuple, 2048, print_tuple, NULL); 534 #endif 535 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 536 } 537 538 if (NULL == (csc = config_found_sm((void *)sc, &ca, cardbusprint, cardbussubmatch))) { 539 /* do not match */ 540 disable_function(sc, function); 541 free(ct, M_DEVBUF); 542 *previous_next = NULL; 543 } else { 544 /* found */ 545 previous_next = &(ct->ct_next); 546 ct->ct_device = csc; 547 ++no_work_funcs; 548 } 549 } 550 /* 551 * XXX power down pseudo function 8 (this will power down the card 552 * if no functions were attached). 553 */ 554 disable_function(sc, 8); 555 556 return no_work_funcs; 557 } 558 559 560 static int 561 #ifdef __BROKEN_INDIRECT_CONFIG 562 cardbussubmatch(parent, match, aux) 563 #else 564 cardbussubmatch(parent, cf, aux) 565 #endif 566 struct device *parent; 567 #ifdef __BROKEN_INDIRECT_CONFIG 568 void *match; 569 #else 570 struct cfdata *cf; 571 #endif 572 void *aux; 573 { 574 #ifdef __BROKEN_INDIRECT_CONFIG 575 struct cfdata *cf = match; 576 #endif 577 struct cardbus_attach_args *ca = aux; 578 579 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 580 cf->cardbuscf_dev != ca->ca_unit) { 581 return 0; 582 } 583 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 584 cf->cardbuscf_function != ca->ca_function) { 585 return 0; 586 } 587 588 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 589 } 590 591 592 593 static int 594 cardbusprint(aux, pnp) 595 void *aux; 596 const char *pnp; 597 { 598 struct cardbus_attach_args *ca = aux; 599 char devinfo[256]; 600 int i; 601 if (pnp) { 602 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 603 for (i = 0; i < 4; i++) { 604 if (ca->ca_cis.cis1_info[i] == NULL) 605 break; 606 if (i) 607 printf(", "); 608 printf("%s", ca->ca_cis.cis1_info[i]); 609 } 610 if (i) 611 printf(" "); 612 printf("(manufacturer 0x%x, product 0x%x)", ca->ca_cis.manufacturer, 613 ca->ca_cis.product); 614 printf(" %s at %s", devinfo, pnp); 615 } 616 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 617 618 return UNCONF; 619 } 620 621 622 623 624 625 626 /* 627 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 628 * Interrupt handler of pccard. 629 * args: 630 * cardbus_chipset_tag_t *cc 631 * int irq: 632 */ 633 void * 634 cardbus_intr_establish(cc, cf, irq, level, func, arg) 635 cardbus_chipset_tag_t cc; 636 cardbus_function_tag_t cf; 637 cardbus_intr_handle_t irq; 638 int level; 639 int (*func) __P((void *)); 640 void *arg; 641 { 642 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 643 644 return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg); 645 } 646 647 648 649 /* 650 * void cardbus_intr_disestablish(cc, cf, handler) 651 * Interrupt handler of pccard. 652 * args: 653 * cardbus_chipset_tag_t *cc 654 */ 655 void 656 cardbus_intr_disestablish(cc, cf, handler) 657 cardbus_chipset_tag_t cc; 658 cardbus_function_tag_t cf; 659 void *handler; 660 { 661 DPRINTF(("- pccard_intr_disestablish\n")); 662 663 (*cf->cardbus_intr_disestablish)(cc, handler); 664 return; 665 } 666 667 668 669 /* XXX this should be merged with cardbus_function_{enable,disable}, 670 but we don't have a ct when these functions are called */ 671 672 static void 673 enable_function(sc, cdstatus, function) 674 struct cardbus_softc *sc; 675 int cdstatus; 676 int function; 677 { 678 if(sc->sc_poweron_func == 0) { 679 if (cdstatus & CARDBUS_3V_CARD) { 680 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V); 681 } 682 (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 683 } 684 sc->sc_poweron_func |= (1 << function); 685 } 686 687 static void 688 disable_function(sc, function) 689 struct cardbus_softc *sc; 690 int function; 691 { 692 sc->sc_poweron_func &= ~(1 << function); 693 if(sc->sc_poweron_func == 0) { 694 /* power-off because no functions are enabled */ 695 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V); 696 } 697 } 698 699 /* 700 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 701 * 702 * This function enables a function on a card. When no power is 703 * applied on the card, power will be applied on it. 704 */ 705 int 706 cardbus_function_enable(sc, func) 707 struct cardbus_softc *sc; 708 int func; 709 { 710 cardbus_chipset_tag_t cc = sc->sc_cc; 711 cardbus_function_tag_t cf = sc->sc_cf; 712 cardbusreg_t command; 713 cardbustag_t tag; 714 715 DPRINTF(("entering cardbus_function_enable... ")); 716 717 /* entering critical area */ 718 719 enable_function(sc, CARDBUS_3V_CARD, func); /* XXX: sc_vold should be used */ 720 721 /* exiting critical area */ 722 723 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 724 725 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 726 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 727 728 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 729 730 cardbus_free_tag(cc, cf, tag); 731 732 DPRINTF(("%x\n", sc->sc_poweron_func)); 733 734 return 0; 735 } 736 737 738 /* 739 * int cardbus_function_disable(struct cardbus_softc *, int func) 740 * 741 * This function disable a function on a card. When no functions are 742 * enabled, it turns off the power. 743 */ 744 int 745 cardbus_function_disable(sc, func) 746 struct cardbus_softc *sc; 747 int func; 748 { 749 750 DPRINTF(("entering cardbus_function_disable... ")); 751 752 disable_function(sc, func); 753 754 return 0; 755 } 756 757 758 /* 759 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 760 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 761 * cardbusreg_t *value) 762 * 763 * Find the specified PCI capability. 764 */ 765 int 766 cardbus_get_capability(cc, cf, tag, capid, offset, value) 767 cardbus_chipset_tag_t cc; 768 cardbus_function_tag_t cf; 769 cardbustag_t tag; 770 int capid; 771 int *offset; 772 cardbusreg_t *value; 773 { 774 cardbusreg_t reg; 775 unsigned int ofs; 776 777 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 778 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 779 return (0); 780 781 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 782 PCI_CAPLISTPTR_REG)); 783 while (ofs != 0) { 784 #ifdef DIAGNOSTIC 785 if ((ofs & 3) || (ofs < 0x40)) 786 panic("cardbus_get_capability"); 787 #endif 788 reg = cardbus_conf_read(cc, cf, tag, ofs); 789 if (PCI_CAPLIST_CAP(reg) == capid) { 790 if (offset) 791 *offset = ofs; 792 if (value) 793 *value = reg; 794 return (1); 795 } 796 ofs = PCI_CAPLIST_NEXT(reg); 797 } 798 799 return (0); 800 } 801 802 803 /* 804 * below this line, there are some functions for decoding tuples. 805 * They should go out from this file. 806 */ 807 808 static u_int8_t * 809 decode_tuple __P((u_int8_t *tuple, tuple_decode_func func, void *data)); 810 811 static int 812 decode_tuples(tuple, buflen, func, data) 813 u_int8_t *tuple; 814 int buflen; 815 tuple_decode_func func; 816 void *data; 817 { 818 u_int8_t *tp = tuple; 819 820 if (CISTPL_LINKTARGET != *tuple) { 821 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 822 return 0; 823 } 824 825 while (NULL != (tp = decode_tuple(tp, func, data))) { 826 if (tuple + buflen < tp) { 827 break; 828 } 829 } 830 831 return 1; 832 } 833 834 835 static u_int8_t * 836 decode_tuple(tuple, func, data) 837 u_int8_t *tuple; 838 tuple_decode_func func; 839 void *data; 840 { 841 u_int8_t type; 842 u_int8_t len; 843 844 type = tuple[0]; 845 len = tuple[1] + 2; 846 847 (*func)(tuple, len, data); 848 849 if (CISTPL_END == type) { 850 return NULL; 851 } 852 853 return tuple + len; 854 } 855 856 857 #ifdef CARDBUS_DEBUG 858 static char *tuple_name __P((int type)); 859 860 static char * 861 tuple_name(type) 862 int type; 863 { 864 static char *tuple_name_s [] = { 865 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 866 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 867 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 868 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 869 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 870 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 871 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 872 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 873 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 874 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 875 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 876 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 877 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 878 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 879 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 880 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 881 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 882 "DATE", "BATTERY", "ORG" 883 }; 884 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 885 886 if (type > 0 && type < NAME_LEN(tuple_name_s)) { 887 return tuple_name_s[type]; 888 } else if (0xff == type) { 889 return "END"; 890 } else { 891 return "Reserved"; 892 } 893 } 894 895 static void 896 print_tuple(tuple, len, data) 897 u_int8_t *tuple; 898 int len; 899 void *data; 900 { 901 int i; 902 903 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 904 905 for (i = 0; i < len; ++i) { 906 if (i % 16 == 0) { 907 printf(" 0x%2x:", i); 908 } 909 printf(" %x",tuple[i]); 910 if (i % 16 == 15) { 911 printf("\n"); 912 } 913 } 914 if (i % 16 != 0) { 915 printf("\n"); 916 } 917 } 918 919 #endif 920 921
Indexes created Tue Sep 30 07:10:03 GMT 2025