cardbus.c revision 1.36
1 /* $NetBSD: cardbus.c,v 1.36 2001/11/06 03:11:10 augustss 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 #include <sys/reboot.h> /* for AB_* needed by bootverbose */ 46 47 #include <machine/bus.h> 48 49 #include <dev/cardbus/cardbusvar.h> 50 #include <dev/cardbus/cardbusdevs.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> 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 STATIC void cardbusattach(struct device *, struct device *, void *); 69 int cardbus_attach_card(struct cardbus_softc *); 70 71 STATIC int cardbusmatch(struct device *, struct cfdata *, void *); 72 static int cardbussubmatch(struct device *, struct cfdata *, void *); 73 static int cardbusprint(void *, const char *); 74 75 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 76 77 static int decode_tuples(u_int8_t *, int, tuple_decode_func, void*); 78 #ifdef CARDBUS_DEBUG 79 static void print_tuple(u_int8_t*, int, void*); 80 #endif 81 82 static int cardbus_read_tuples(struct cardbus_attach_args *, 83 cardbusreg_t, u_int8_t *, size_t); 84 85 static void enable_function(struct cardbus_softc *, int, int); 86 static void disable_function(struct cardbus_softc *, int); 87 88 struct cfattach cardbus_ca = { 89 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 90 }; 91 92 #ifndef __NetBSD_Version__ 93 struct cfdriver cardbus_cd = { 94 NULL, "cardbus", DV_DULL 95 }; 96 #endif 97 98 99 STATIC int 100 cardbusmatch(struct device *parent, struct cfdata *cf, void *aux) 101 { 102 struct cbslot_attach_args *cba = aux; 103 104 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 105 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 106 cba->cba_busname, cf->cf_driver->cd_name)); 107 return (0); 108 } 109 110 return (1); 111 } 112 113 STATIC void 114 cardbusattach(struct device *parent, struct device *self, void *aux) 115 { 116 struct cardbus_softc *sc = (void *)self; 117 struct cbslot_attach_args *cba = aux; 118 119 sc->sc_bus = cba->cba_bus; 120 sc->sc_device = 0; 121 sc->sc_intrline = cba->cba_intrline; 122 sc->sc_cacheline = cba->cba_cacheline; 123 sc->sc_lattimer = cba->cba_lattimer; 124 125 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 126 if (bootverbose) 127 printf(" cacheline 0x%x, lattimer 0x%x", sc->sc_cacheline, 128 sc->sc_lattimer); 129 printf("\n"); 130 131 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 132 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 133 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 134 sc->sc_cc = cba->cba_cc; 135 sc->sc_cf = cba->cba_cf; 136 137 #if rbus 138 sc->sc_rbus_iot = cba->cba_rbus_iot; 139 sc->sc_rbus_memt = cba->cba_rbus_memt; 140 #endif 141 142 sc->sc_funcs = NULL; 143 } 144 145 static int 146 cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr, 147 u_int8_t *tuples, size_t len) 148 { 149 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 150 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 151 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 152 cardbustag_t tag = ca->ca_tag; 153 cardbusreg_t command; 154 bus_space_tag_t bar_tag; 155 bus_space_handle_t bar_memh; 156 bus_size_t bar_size; 157 bus_addr_t bar_addr; 158 cardbusreg_t reg; 159 int found = 0; 160 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 161 int i, j; 162 163 memset(tuples, 0, len); 164 165 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 166 167 switch (cardbus_space) { 168 case CARDBUS_CIS_ASI_TUPLE: 169 DPRINTF(("%s: reading CIS data from configuration space\n", 170 sc->sc_dev.dv_xname)); 171 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 172 u_int32_t e = (*cf->cardbus_conf_read)(cc, tag, i); 173 tuples[j] = 0xff & e; 174 e >>= 8; 175 tuples[j + 1] = 0xff & e; 176 e >>= 8; 177 tuples[j + 2] = 0xff & e; 178 e >>= 8; 179 tuples[j + 3] = 0xff & e; 180 j += 4; 181 } 182 found++; 183 break; 184 185 case CARDBUS_CIS_ASI_BAR0: 186 case CARDBUS_CIS_ASI_BAR1: 187 case CARDBUS_CIS_ASI_BAR2: 188 case CARDBUS_CIS_ASI_BAR3: 189 case CARDBUS_CIS_ASI_BAR4: 190 case CARDBUS_CIS_ASI_BAR5: 191 case CARDBUS_CIS_ASI_ROM: 192 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 193 reg = CARDBUS_ROM_REG; 194 DPRINTF(("%s: reading CIS data from ROM\n", 195 sc->sc_dev.dv_xname)); 196 } else { 197 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 198 DPRINTF(("%s: reading CIS data from BAR%d\n", 199 sc->sc_dev.dv_xname, cardbus_space - 1)); 200 } 201 202 /* 203 * XXX zero register so mapreg_map doesn't get confused by old 204 * contents. 205 */ 206 cardbus_conf_write(cc, cf, tag, reg, 0); 207 if (Cardbus_mapreg_map(ca->ca_ct, reg, 208 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 209 0, &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 210 printf("%s: failed to map memory\n", 211 sc->sc_dev.dv_xname); 212 return (1); 213 } 214 215 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 216 cardbusreg_t exrom; 217 int save; 218 struct cardbus_rom_image_head rom_image; 219 struct cardbus_rom_image *p; 220 221 save = splhigh(); 222 /* enable rom address decoder */ 223 exrom = cardbus_conf_read(cc, cf, tag, reg); 224 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 225 226 command = cardbus_conf_read(cc, cf, tag, 227 CARDBUS_COMMAND_STATUS_REG); 228 cardbus_conf_write(cc, cf, tag, 229 CARDBUS_COMMAND_STATUS_REG, 230 command | CARDBUS_COMMAND_MEM_ENABLE); 231 232 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 233 &rom_image)) 234 goto out; 235 236 for (p = SIMPLEQ_FIRST(&rom_image); p != NULL; 237 p = SIMPLEQ_NEXT(p, next)) { 238 if (p->rom_image == 239 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 240 bus_space_read_region_1(p->romt, 241 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 242 tuples, 256); 243 found++; 244 } 245 break; 246 } 247 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 248 SIMPLEQ_REMOVE_HEAD(&rom_image, p, next); 249 free(p, M_DEVBUF); 250 } 251 out: 252 exrom = cardbus_conf_read(cc, cf, tag, reg); 253 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 254 splx(save); 255 } else { 256 command = cardbus_conf_read(cc, cf, tag, 257 CARDBUS_COMMAND_STATUS_REG); 258 cardbus_conf_write(cc, cf, tag, 259 CARDBUS_COMMAND_STATUS_REG, 260 command | CARDBUS_COMMAND_MEM_ENABLE); 261 /* XXX byte order? */ 262 bus_space_read_region_1(ca->ca_memt, bar_memh, 263 cis_ptr, tuples, 256); 264 found++; 265 } 266 command = cardbus_conf_read(cc, cf, tag, 267 CARDBUS_COMMAND_STATUS_REG); 268 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 269 command & ~CARDBUS_COMMAND_MEM_ENABLE); 270 cardbus_conf_write(cc, cf, tag, reg, 0); 271 272 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 273 bar_size); 274 break; 275 276 #ifdef DIAGNOSTIC 277 default: 278 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 279 cardbus_space); 280 #endif 281 } 282 return (!found); 283 } 284 285 static void 286 parse_tuple(u_int8_t *tuple, int len, void *data) 287 { 288 #ifdef CARDBUS_DEBUG 289 static const char __func__[] = "parse_tuple"; 290 #endif 291 struct cardbus_cis_info *cis = data; 292 char *p; 293 int i, bar_index; 294 295 switch (tuple[0]) { 296 case PCMCIA_CISTPL_MANFID: 297 if (tuple[1] != 5) { 298 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 299 __func__, tuple[1])); 300 break; 301 } 302 cis->manufacturer = tuple[2] | (tuple[3] << 8); 303 cis->product = tuple[4] | (tuple[5] << 8); 304 break; 305 306 case PCMCIA_CISTPL_VERS_1: 307 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 308 i = 0; 309 p = cis->cis1_info_buf + 2; 310 while (i < 311 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 312 cis->cis1_info[i++] = p; 313 while (*p != '\0' && *p != '\xff') 314 p++; 315 if (*p == '\xff') 316 break; 317 p++; 318 } 319 break; 320 321 case PCMCIA_CISTPL_BAR: 322 if (tuple[1] != 6) { 323 DPRINTF(("%s: BAR with short length (%d)\n", 324 __func__, tuple[1])); 325 break; 326 } 327 bar_index = tuple[2] & 7; 328 if (bar_index == 0) { 329 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 330 break; 331 } 332 bar_index--; 333 cis->bar[bar_index].flags = tuple[2]; 334 cis->bar[bar_index].size = 335 (tuple[4] << 0) | 336 (tuple[5] << 8) | 337 (tuple[6] << 16) | 338 (tuple[7] << 24); 339 break; 340 341 case PCMCIA_CISTPL_FUNCID: 342 cis->funcid = tuple[2]; 343 break; 344 345 case PCMCIA_CISTPL_FUNCE: 346 switch (cis->funcid) { 347 case PCMCIA_FUNCTION_SERIAL: 348 if (tuple[1] >= 2 && 349 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */ 350 tuple[2] == 0) { 351 cis->funce.serial.uart_type = tuple[3] & 0x1f; 352 cis->funce.serial.uart_present = 1; 353 } 354 break; 355 356 case PCMCIA_FUNCTION_NETWORK: 357 if (tuple[1] >= 8 && 358 tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 359 if (tuple[3] > 360 sizeof(cis->funce.network.netid)) { 361 DPRINTF(("%s: unknown network id type " 362 "(len = %d)\n", 363 __func__, tuple[3])); 364 } else { 365 cis->funce.network.netid_present = 1; 366 memcpy(cis->funce.network.netid, 367 tuple + 4, tuple[3]); 368 } 369 } 370 break; 371 } 372 break; 373 } 374 } 375 376 /* 377 * int cardbus_attach_card(struct cardbus_softc *sc) 378 * 379 * This function attaches the card on the slot: turns on power, 380 * reads and analyses tuple, sets configuration index. 381 * 382 * This function returns the number of recognised device functions. 383 * If no functions are recognised, return 0. 384 */ 385 int 386 cardbus_attach_card(struct cardbus_softc *sc) 387 { 388 cardbus_chipset_tag_t cc; 389 cardbus_function_tag_t cf; 390 cardbustag_t tag; 391 cardbusreg_t id, class, cis_ptr; 392 cardbusreg_t bhlc; 393 u_int8_t tuple[2048]; 394 int cdstatus; 395 int function, nfunction; 396 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 397 struct device *csc; 398 int no_work_funcs = 0; 399 cardbus_devfunc_t ct; 400 401 cc = sc->sc_cc; 402 cf = sc->sc_cf; 403 404 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 405 406 /* inspect initial voltage */ 407 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 408 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 409 sc->sc_dev.dv_unit)); 410 return (0); 411 } 412 413 /* 414 * XXX use fake function 8 to keep power on during whole 415 * configuration. 416 */ 417 enable_function(sc, cdstatus, 8); 418 function = 0; 419 420 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 421 422 /* 423 * Wait until power comes up. Maxmum 500 ms. 424 */ 425 { 426 int i; 427 428 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", 437 hz / 10) != EWOULDBLOCK) { 438 break; 439 } 440 } 441 } 442 if (i == 5) { 443 return (0); 444 } 445 } 446 447 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 448 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 449 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 450 451 for (function = 0; function < nfunction; function++) { 452 struct cardbus_attach_args ca; 453 454 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 455 function); 456 457 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 458 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 459 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 460 461 /* Invalid vendor ID value? */ 462 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 463 continue; 464 } 465 466 DPRINTF(("cardbus_attach_card: " 467 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 468 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 469 470 enable_function(sc, cdstatus, function); 471 472 /* clean up every BAR */ 473 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 474 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 475 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 476 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 477 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 478 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 479 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 480 481 /* set initial latency and cacheline size */ 482 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 483 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 484 function, bhlc)); 485 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 486 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 487 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 488 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 489 490 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 491 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 492 DPRINTF(("0x%08x\n", bhlc)); 493 494 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 495 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 496 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 497 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 498 } 499 500 /* 501 * We need to allocate the ct here, since we might 502 * need it when reading the CIS 503 */ 504 if ((ct = malloc(sizeof(struct cardbus_devfunc), 505 M_DEVBUF, M_NOWAIT)) == NULL) { 506 panic("no room for cardbus_tag"); 507 } 508 509 ct->ct_cc = sc->sc_cc; 510 ct->ct_cf = sc->sc_cf; 511 ct->ct_bus = sc->sc_bus; 512 ct->ct_dev = sc->sc_device; 513 ct->ct_func = function; 514 ct->ct_sc = sc; 515 ct->ct_next = NULL; 516 *previous_next = ct; 517 518 memset(&ca, 0, sizeof(ca)); 519 520 ca.ca_unit = sc->sc_dev.dv_unit; 521 ca.ca_ct = ct; 522 523 ca.ca_iot = sc->sc_iot; 524 ca.ca_memt = sc->sc_memt; 525 ca.ca_dmat = sc->sc_dmat; 526 527 #if rbus 528 ca.ca_rbus_iot = sc->sc_rbus_iot; 529 ca.ca_rbus_memt= sc->sc_rbus_memt; 530 #endif 531 532 ca.ca_tag = tag; 533 ca.ca_bus = sc->sc_bus; 534 ca.ca_device = sc->sc_device; 535 ca.ca_function = function; 536 ca.ca_id = id; 537 ca.ca_class = class; 538 539 ca.ca_intrline = sc->sc_intrline; 540 541 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 542 printf("cardbus_attach_card: failed to read CIS\n"); 543 } else { 544 #ifdef CARDBUS_DEBUG 545 decode_tuples(tuple, 2048, print_tuple, NULL); 546 #endif 547 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 548 } 549 550 if ((csc = config_found_sm((void *)sc, &ca, cardbusprint, 551 cardbussubmatch)) == NULL) { 552 /* do not match */ 553 disable_function(sc, function); 554 free(ct, M_DEVBUF); 555 *previous_next = NULL; 556 } else { 557 /* found */ 558 previous_next = &(ct->ct_next); 559 ct->ct_device = csc; 560 ++no_work_funcs; 561 } 562 } 563 /* 564 * XXX power down pseudo function 8 (this will power down the card 565 * if no functions were attached). 566 */ 567 disable_function(sc, 8); 568 569 return (no_work_funcs); 570 } 571 572 static int 573 cardbussubmatch(struct device *parent, struct cfdata *cf, void *aux) 574 { 575 struct cardbus_attach_args *ca = aux; 576 577 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 578 cf->cardbuscf_dev != ca->ca_unit) { 579 return (0); 580 } 581 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 582 cf->cardbuscf_function != ca->ca_function) { 583 return (0); 584 } 585 586 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 587 } 588 589 static int 590 cardbusprint(void *aux, const char *pnp) 591 { 592 struct cardbus_attach_args *ca = aux; 593 char devinfo[256]; 594 int i; 595 596 if (pnp) { 597 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 598 for (i = 0; i < 4; i++) { 599 if (ca->ca_cis.cis1_info[i] == NULL) 600 break; 601 if (i) 602 printf(", "); 603 printf("%s", ca->ca_cis.cis1_info[i]); 604 } 605 if (bootverbose) { 606 if (i) 607 printf(" "); 608 printf("(manufacturer 0x%x, product 0x%x)", 609 ca->ca_cis.manufacturer, ca->ca_cis.product); 610 } 611 printf(" %s at %s", devinfo, pnp); 612 } 613 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 614 615 return (UNCONF); 616 } 617 618 /* 619 * void cardbus_detach_card(struct cardbus_softc *sc) 620 * 621 * This function detaches the card on the slot: detach device data 622 * structure and turns off the power. 623 * 624 * This function must not be called under interrupt context. 625 */ 626 void 627 cardbus_detach_card(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, 638 fndev->dv_xname)); 639 /* call device detach function */ 640 641 if (0 != config_detach(fndev, 0)) { 642 printf("%s: cannot detach dev %s, function %d\n", 643 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 644 prev_next = &(ct->ct_next); 645 } else { 646 sc->sc_poweron_func &= ~(1 << ct->ct_func); 647 *prev_next = ct->ct_next; 648 free(ct, M_DEVBUF); 649 } 650 } 651 652 sc->sc_poweron_func = 0; 653 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 654 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 655 } 656 657 /* 658 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 659 * Interrupt handler of pccard. 660 * args: 661 * cardbus_chipset_tag_t *cc 662 * int irq: 663 */ 664 void * 665 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 666 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 667 { 668 669 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 670 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 671 } 672 673 /* 674 * void cardbus_intr_disestablish(cc, cf, handler) 675 * Interrupt handler of pccard. 676 * args: 677 * cardbus_chipset_tag_t *cc 678 */ 679 void 680 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 681 void *handler) 682 { 683 684 DPRINTF(("- pccard_intr_disestablish\n")); 685 (*cf->cardbus_intr_disestablish)(cc, handler); 686 } 687 688 /* 689 * XXX this should be merged with cardbus_function_{enable,disable}, 690 * but we don't have a ct when these functions are called. 691 */ 692 static void 693 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 694 { 695 696 if (sc->sc_poweron_func == 0) { 697 /* switch to 3V and/or wait for power to stabilize */ 698 if (cdstatus & CARDBUS_3V_CARD) { 699 /* 700 * sc_poweron_func must be substituted before 701 * entering sleep, in order to avoid turn on 702 * power twice. 703 */ 704 sc->sc_poweron_func |= (1 << function); 705 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 706 } else { 707 /* No cards other than 3.3V cards. */ 708 return; 709 } 710 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 711 } 712 sc->sc_poweron_func |= (1 << function); 713 } 714 715 static void 716 disable_function(struct cardbus_softc *sc, int function) 717 { 718 719 sc->sc_poweron_func &= ~(1 << function); 720 if (sc->sc_poweron_func == 0) { 721 /* power-off because no functions are enabled */ 722 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 723 } 724 } 725 726 /* 727 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 728 * 729 * This function enables a function on a card. When no power is 730 * applied on the card, power will be applied on it. 731 */ 732 int 733 cardbus_function_enable(struct cardbus_softc *sc, int func) 734 { 735 cardbus_chipset_tag_t cc = sc->sc_cc; 736 cardbus_function_tag_t cf = sc->sc_cf; 737 cardbusreg_t command; 738 cardbustag_t tag; 739 740 DPRINTF(("entering cardbus_function_enable... ")); 741 742 /* entering critical area */ 743 744 /* XXX: sc_vold should be used */ 745 enable_function(sc, CARDBUS_3V_CARD, func); 746 747 /* exiting critical area */ 748 749 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 750 751 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 752 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 753 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 754 755 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 756 757 cardbus_free_tag(cc, cf, tag); 758 759 DPRINTF(("%x\n", sc->sc_poweron_func)); 760 761 return (0); 762 } 763 764 /* 765 * int cardbus_function_disable(struct cardbus_softc *, int func) 766 * 767 * This function disable a function on a card. When no functions are 768 * enabled, it turns off the power. 769 */ 770 int 771 cardbus_function_disable(struct cardbus_softc *sc, int func) 772 { 773 774 DPRINTF(("entering cardbus_function_disable... ")); 775 776 disable_function(sc, func); 777 778 return (0); 779 } 780 781 /* 782 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 783 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 784 * cardbusreg_t *value) 785 * 786 * Find the specified PCI capability. 787 */ 788 int 789 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 790 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 791 { 792 cardbusreg_t reg; 793 unsigned int ofs; 794 795 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 796 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 797 return (0); 798 799 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 800 PCI_CAPLISTPTR_REG)); 801 while (ofs != 0) { 802 #ifdef DIAGNOSTIC 803 if ((ofs & 3) || (ofs < 0x40)) 804 panic("cardbus_get_capability"); 805 #endif 806 reg = cardbus_conf_read(cc, cf, tag, ofs); 807 if (PCI_CAPLIST_CAP(reg) == capid) { 808 if (offset) 809 *offset = ofs; 810 if (value) 811 *value = reg; 812 return (1); 813 } 814 ofs = PCI_CAPLIST_NEXT(reg); 815 } 816 817 return (0); 818 } 819 820 /* 821 * below this line, there are some functions for decoding tuples. 822 * They should go out from this file. 823 */ 824 825 static u_int8_t * 826 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 827 828 static int 829 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 830 { 831 u_int8_t *tp = tuple; 832 833 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 834 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 835 return (0); 836 } 837 838 while (NULL != (tp = decode_tuple(tp, func, data))) { 839 if (tuple + buflen < tp) { 840 break; 841 } 842 } 843 844 return (1); 845 } 846 847 static u_int8_t * 848 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 849 { 850 u_int8_t type; 851 u_int8_t len; 852 853 type = tuple[0]; 854 len = tuple[1] + 2; 855 856 (*func)(tuple, len, data); 857 858 if (type == PCMCIA_CISTPL_END) { 859 return (NULL); 860 } 861 862 return (tuple + len); 863 } 864 865 #ifdef CARDBUS_DEBUG 866 static const char *tuple_name(int); 867 static const char *tuple_names[] = { 868 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 869 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 870 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 871 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 872 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 873 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 874 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 875 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 876 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 877 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 878 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 879 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 880 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 881 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 882 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 883 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 884 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 885 "DATE", "BATTERY", "ORG" 886 }; 887 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 888 889 static const char * 890 tuple_name(int type) 891 { 892 893 if (0 <= type && type < NAME_LEN(tuple_names)) { 894 return (tuple_names[type]); 895 } else if (type == 0xff) { 896 return ("END"); 897 } else { 898 return ("Reserved"); 899 } 900 } 901 902 static void 903 print_tuple(u_int8_t *tuple, int len, void *data) 904 { 905 int i; 906 907 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 908 909 for (i = 0; i < len; ++i) { 910 if (i % 16 == 0) { 911 printf(" 0x%2x:", i); 912 } 913 printf(" %x", tuple[i]); 914 if (i % 16 == 15) { 915 printf("\n"); 916 } 917 } 918 if (i % 16 != 0) { 919 printf("\n"); 920 } 921 } 922 #endif 923
Indexes created Tue Sep 30 11:09:46 GMT 2025