cardbus.c revision 1.60
1 /* $NetBSD: cardbus.c,v 1.60 2004/10/14 03:24:00 enami 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 <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: cardbus.c,v 1.60 2004/10/14 03:24:00 enami Exp $"); 37 38 #include "opt_cardbus.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/device.h> 43 #include <sys/malloc.h> 44 #include <sys/kernel.h> 45 #include <sys/syslog.h> 46 #include <sys/proc.h> 47 #include <sys/reboot.h> /* for AB_* needed by bootverbose */ 48 49 #include <machine/bus.h> 50 51 #include <dev/cardbus/cardbusvar.h> 52 #include <dev/pci/pcidevs.h> 53 54 #include <dev/cardbus/cardbus_exrom.h> 55 56 #include <dev/pci/pcivar.h> /* XXX */ 57 #include <dev/pci/pcireg.h> /* XXX */ 58 59 #include <dev/pcmcia/pcmciareg.h> 60 61 #include "locators.h" 62 63 #if defined CARDBUS_DEBUG 64 #define STATIC 65 #define DPRINTF(a) printf a 66 #else 67 #define STATIC static 68 #define DPRINTF(a) 69 #endif 70 71 72 STATIC void cardbusattach(struct device *, struct device *, void *); 73 STATIC int cardbusmatch(struct device *, struct cfdata *, void *); 74 int cardbus_rescan(struct device *, const char *, const int *); 75 void cardbus_childdetached(struct device *, struct device *); 76 static int cardbussubmatch(struct device *, struct cfdata *, 77 const locdesc_t *, void *); 78 static int cardbusprint(void *, const char *); 79 80 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 81 82 static int decode_tuples(u_int8_t *, int, tuple_decode_func, void*); 83 #ifdef CARDBUS_DEBUG 84 static void print_tuple(u_int8_t*, int, void*); 85 #endif 86 87 static int cardbus_read_tuples(struct cardbus_attach_args *, 88 cardbusreg_t, u_int8_t *, size_t); 89 90 static void enable_function(struct cardbus_softc *, int, int); 91 static void disable_function(struct cardbus_softc *, int); 92 93 CFATTACH_DECL2(cardbus, sizeof(struct cardbus_softc), 94 cardbusmatch, cardbusattach, NULL, NULL, 95 cardbus_rescan, cardbus_childdetached); 96 97 #ifndef __NetBSD_Version__ 98 struct cfdriver cardbus_cd = { 99 NULL, "cardbus", DV_DULL 100 }; 101 #endif 102 103 104 STATIC int 105 cardbusmatch(struct device *parent, struct cfdata *cf, void *aux) 106 { 107 struct cbslot_attach_args *cba = aux; 108 109 if (strcmp(cba->cba_busname, cf->cf_name)) { 110 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 111 cba->cba_busname, cf->cf_name)); 112 return (0); 113 } 114 115 return (1); 116 } 117 118 STATIC void 119 cardbusattach(struct device *parent, struct device *self, void *aux) 120 { 121 struct cardbus_softc *sc = (void *)self; 122 struct cbslot_attach_args *cba = aux; 123 124 sc->sc_bus = cba->cba_bus; 125 sc->sc_device = 0; 126 sc->sc_intrline = cba->cba_intrline; 127 sc->sc_cacheline = cba->cba_cacheline; 128 sc->sc_lattimer = cba->cba_lattimer; 129 130 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 131 if (bootverbose) 132 printf(" cacheline 0x%x, lattimer 0x%x", sc->sc_cacheline, 133 sc->sc_lattimer); 134 printf("\n"); 135 136 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 137 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 138 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 139 sc->sc_cc = cba->cba_cc; 140 sc->sc_cf = cba->cba_cf; 141 142 #if rbus 143 sc->sc_rbus_iot = cba->cba_rbus_iot; 144 sc->sc_rbus_memt = cba->cba_rbus_memt; 145 #endif 146 } 147 148 static int 149 cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr, 150 u_int8_t *tuples, size_t len) 151 { 152 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 153 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 154 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 155 cardbustag_t tag = ca->ca_tag; 156 cardbusreg_t command; 157 bus_space_tag_t bar_tag; 158 bus_space_handle_t bar_memh; 159 bus_size_t bar_size; 160 bus_addr_t bar_addr; 161 cardbusreg_t reg; 162 int found = 0; 163 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 164 int i, j; 165 166 memset(tuples, 0, len); 167 168 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 169 170 switch (cardbus_space) { 171 case CARDBUS_CIS_ASI_TUPLE: 172 DPRINTF(("%s: reading CIS data from configuration space\n", 173 sc->sc_dev.dv_xname)); 174 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 175 u_int32_t e = (*cf->cardbus_conf_read)(cc, tag, i); 176 tuples[j] = 0xff & e; 177 e >>= 8; 178 tuples[j + 1] = 0xff & e; 179 e >>= 8; 180 tuples[j + 2] = 0xff & e; 181 e >>= 8; 182 tuples[j + 3] = 0xff & e; 183 j += 4; 184 } 185 found++; 186 break; 187 188 case CARDBUS_CIS_ASI_BAR0: 189 case CARDBUS_CIS_ASI_BAR1: 190 case CARDBUS_CIS_ASI_BAR2: 191 case CARDBUS_CIS_ASI_BAR3: 192 case CARDBUS_CIS_ASI_BAR4: 193 case CARDBUS_CIS_ASI_BAR5: 194 case CARDBUS_CIS_ASI_ROM: 195 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 196 reg = CARDBUS_ROM_REG; 197 DPRINTF(("%s: reading CIS data from ROM\n", 198 sc->sc_dev.dv_xname)); 199 } else { 200 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 201 DPRINTF(("%s: reading CIS data from BAR%d\n", 202 sc->sc_dev.dv_xname, cardbus_space - 1)); 203 } 204 205 /* 206 * XXX zero register so mapreg_map doesn't get confused by old 207 * contents. 208 */ 209 cardbus_conf_write(cc, cf, tag, reg, 0); 210 if (Cardbus_mapreg_map(ca->ca_ct, reg, 211 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 212 0, &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 213 printf("%s: failed to map memory\n", 214 sc->sc_dev.dv_xname); 215 return (1); 216 } 217 218 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 219 cardbusreg_t exrom; 220 int save; 221 struct cardbus_rom_image_head rom_image; 222 struct cardbus_rom_image *p; 223 224 save = splhigh(); 225 /* enable rom address decoder */ 226 exrom = cardbus_conf_read(cc, cf, tag, reg); 227 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 228 229 command = cardbus_conf_read(cc, cf, tag, 230 CARDBUS_COMMAND_STATUS_REG); 231 cardbus_conf_write(cc, cf, tag, 232 CARDBUS_COMMAND_STATUS_REG, 233 command | CARDBUS_COMMAND_MEM_ENABLE); 234 235 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 236 &rom_image)) 237 goto out; 238 239 SIMPLEQ_FOREACH(p, &rom_image, next) { 240 if (p->rom_image == 241 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 242 bus_space_read_region_1(p->romt, 243 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 244 tuples, MIN(p->image_size, len)); 245 found++; 246 break; 247 } 248 } 249 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 250 SIMPLEQ_REMOVE_HEAD(&rom_image, next); 251 free(p, M_DEVBUF); 252 } 253 out: 254 exrom = cardbus_conf_read(cc, cf, tag, reg); 255 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 256 splx(save); 257 } else { 258 command = cardbus_conf_read(cc, cf, tag, 259 CARDBUS_COMMAND_STATUS_REG); 260 cardbus_conf_write(cc, cf, tag, 261 CARDBUS_COMMAND_STATUS_REG, 262 command | CARDBUS_COMMAND_MEM_ENABLE); 263 /* XXX byte order? */ 264 bus_space_read_region_1(ca->ca_memt, bar_memh, 265 cis_ptr, tuples, MIN(bar_size, len)); 266 found++; 267 } 268 command = cardbus_conf_read(cc, cf, tag, 269 CARDBUS_COMMAND_STATUS_REG); 270 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 271 command & ~CARDBUS_COMMAND_MEM_ENABLE); 272 cardbus_conf_write(cc, cf, tag, reg, 0); 273 274 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 275 bar_size); 276 break; 277 278 #ifdef DIAGNOSTIC 279 default: 280 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 281 cardbus_space); 282 #endif 283 } 284 return (!found); 285 } 286 287 static void 288 parse_tuple(u_int8_t *tuple, int len, void *data) 289 { 290 struct cardbus_cis_info *cis = data; 291 char *p; 292 int i, bar_index; 293 294 switch (tuple[0]) { 295 case PCMCIA_CISTPL_MANFID: 296 if (tuple[1] != 5) { 297 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 298 __func__, tuple[1])); 299 break; 300 } 301 cis->manufacturer = tuple[2] | (tuple[3] << 8); 302 cis->product = tuple[4] | (tuple[5] << 8); 303 break; 304 305 case PCMCIA_CISTPL_VERS_1: 306 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 307 i = 0; 308 p = cis->cis1_info_buf + 2; 309 while (i < 310 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 311 cis->cis1_info[i++] = p; 312 while (*p != '\0' && *p != '\xff') 313 p++; 314 if (*p == '\xff') 315 break; 316 p++; 317 } 318 break; 319 320 case PCMCIA_CISTPL_BAR: 321 if (tuple[1] != 6) { 322 DPRINTF(("%s: BAR with short length (%d)\n", 323 __func__, tuple[1])); 324 break; 325 } 326 bar_index = tuple[2] & 7; 327 if (bar_index == 0) { 328 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 329 break; 330 } 331 bar_index--; 332 cis->bar[bar_index].flags = tuple[2]; 333 cis->bar[bar_index].size = 334 (tuple[4] << 0) | 335 (tuple[5] << 8) | 336 (tuple[6] << 16) | 337 (tuple[7] << 24); 338 break; 339 340 case PCMCIA_CISTPL_FUNCID: 341 cis->funcid = tuple[2]; 342 break; 343 344 case PCMCIA_CISTPL_FUNCE: 345 switch (cis->funcid) { 346 case PCMCIA_FUNCTION_SERIAL: 347 if (tuple[1] >= 2 && 348 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */ 349 tuple[2] == 0) { 350 cis->funce.serial.uart_type = tuple[3] & 0x1f; 351 cis->funce.serial.uart_present = 1; 352 } 353 break; 354 355 case PCMCIA_FUNCTION_NETWORK: 356 if (tuple[1] >= 8 && 357 tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 358 if (tuple[3] > 359 sizeof(cis->funce.network.netid)) { 360 DPRINTF(("%s: unknown network id type " 361 "(len = %d)\n", 362 __func__, tuple[3])); 363 } else { 364 cis->funce.network.netid_present = 1; 365 memcpy(cis->funce.network.netid, 366 tuple + 4, tuple[3]); 367 } 368 } 369 break; 370 } 371 break; 372 } 373 } 374 375 /* 376 * int cardbus_attach_card(struct cardbus_softc *sc) 377 * 378 * This function attaches the card on the slot: turns on power, 379 * reads and analyses tuple, sets configuration index. 380 * 381 * This function returns the number of recognised device functions. 382 * If no functions are recognised, return 0. 383 */ 384 int 385 cardbus_attach_card(struct cardbus_softc *sc) 386 { 387 cardbus_chipset_tag_t cc; 388 cardbus_function_tag_t cf; 389 int cdstatus; 390 static int wildcard[] = { 391 CARDBUSCF_DEV_DEFAULT, CARDBUSCF_FUNCTION_DEFAULT 392 }; 393 394 cc = sc->sc_cc; 395 cf = sc->sc_cf; 396 397 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 398 399 /* inspect initial voltage */ 400 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 401 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 402 sc->sc_dev.dv_unit)); 403 return (0); 404 } 405 406 cardbus_rescan(&sc->sc_dev, "cardbus", wildcard); 407 return (1); /* XXX */ 408 } 409 410 int 411 cardbus_rescan(struct device *self, const char *ifattr, const int *locators) 412 { 413 struct cardbus_softc *sc = (struct cardbus_softc *)self; 414 cardbus_chipset_tag_t cc; 415 cardbus_function_tag_t cf; 416 cardbustag_t tag; 417 cardbusreg_t id, class, cis_ptr; 418 cardbusreg_t bhlc; 419 u_int8_t tuple[2048]; 420 int cdstatus; 421 int function, nfunction; 422 struct device *csc; 423 cardbus_devfunc_t ct; 424 425 cc = sc->sc_cc; 426 cf = sc->sc_cf; 427 428 /* XXX what a nonsense */ 429 if (locators[CARDBUSCF_DEV] != CARDBUSCF_DEV_DEFAULT && 430 locators[CARDBUSCF_DEV] != sc->sc_device) 431 return (0); 432 433 /* inspect initial voltage */ 434 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 435 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 436 sc->sc_dev.dv_unit)); 437 return (0); 438 } 439 440 /* 441 * XXX use fake function 8 to keep power on during whole 442 * configuration. 443 */ 444 enable_function(sc, cdstatus, 8); 445 function = 0; 446 447 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 448 449 /* 450 * Wait until power comes up. Maxmum 500 ms. 451 */ 452 { 453 int i; 454 455 for (i = 0; i < 5; ++i) { 456 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 457 if (id != 0xffffffff && id != 0) { 458 break; 459 } 460 if (cold) { /* before kernel thread invoked */ 461 delay(100 * 1000); 462 } else { /* thread context */ 463 if (tsleep((void *)sc, PCATCH, "cardbus", 464 hz / 10) != EWOULDBLOCK) { 465 break; 466 } 467 } 468 } 469 if (i == 5) { 470 return (EIO); 471 } 472 } 473 474 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 475 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 476 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 477 478 for (function = 0; function < nfunction; function++) { 479 struct cardbus_attach_args ca; 480 int help[3]; 481 locdesc_t *ldesc = (void *)&help; /* XXX */ 482 483 if (locators[CARDBUSCF_FUNCTION] != 484 CARDBUSCF_FUNCTION_DEFAULT && 485 locators[CARDBUSCF_FUNCTION] != function) 486 continue; 487 488 if (sc->sc_funcs[function]) 489 continue; 490 491 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 492 function); 493 494 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 495 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 496 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 497 498 /* Invalid vendor ID value? */ 499 if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID) { 500 continue; 501 } 502 503 DPRINTF(("cardbus_attach_card: " 504 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 505 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 506 507 enable_function(sc, cdstatus, function); 508 509 /* clean up every BAR */ 510 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 511 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 512 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 513 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 514 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 515 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 516 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 517 518 /* set initial latency and cacheline size */ 519 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 520 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 521 function, bhlc)); 522 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 523 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 524 bhlc |= (sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << 525 CARDBUS_CACHELINE_SHIFT; 526 bhlc |= (sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << 527 CARDBUS_LATTIMER_SHIFT; 528 529 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 530 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 531 DPRINTF(("0x%08x\n", bhlc)); 532 533 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 534 bhlc &= ~(CARDBUS_LATTIMER_MASK << 535 CARDBUS_LATTIMER_SHIFT); 536 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 537 cardbus_conf_write(cc, cf, tag, 538 CARDBUS_BHLC_REG, bhlc); 539 } 540 541 /* 542 * We need to allocate the ct here, since we might 543 * need it when reading the CIS 544 */ 545 if ((ct = malloc(sizeof(struct cardbus_devfunc), 546 M_DEVBUF, M_NOWAIT)) == NULL) { 547 panic("no room for cardbus_tag"); 548 } 549 550 ct->ct_cc = sc->sc_cc; 551 ct->ct_cf = sc->sc_cf; 552 ct->ct_bus = sc->sc_bus; 553 ct->ct_dev = sc->sc_device; 554 ct->ct_func = function; 555 ct->ct_sc = sc; 556 sc->sc_funcs[function] = ct; 557 558 memset(&ca, 0, sizeof(ca)); 559 560 ca.ca_ct = ct; 561 562 ca.ca_iot = sc->sc_iot; 563 ca.ca_memt = sc->sc_memt; 564 ca.ca_dmat = sc->sc_dmat; 565 566 #if rbus 567 ca.ca_rbus_iot = sc->sc_rbus_iot; 568 ca.ca_rbus_memt= sc->sc_rbus_memt; 569 #endif 570 571 ca.ca_tag = tag; 572 ca.ca_bus = sc->sc_bus; 573 ca.ca_device = sc->sc_device; /* always 0 */ 574 ca.ca_function = function; 575 ca.ca_id = id; 576 ca.ca_class = class; 577 578 ca.ca_intrline = sc->sc_intrline; 579 580 if (cis_ptr != 0) { 581 if (cardbus_read_tuples(&ca, cis_ptr, 582 tuple, sizeof(tuple))) { 583 printf("cardbus_attach_card: " 584 "failed to read CIS\n"); 585 } else { 586 #ifdef CARDBUS_DEBUG 587 decode_tuples(tuple, sizeof(tuple), 588 print_tuple, NULL); 589 #endif 590 decode_tuples(tuple, sizeof(tuple), 591 parse_tuple, &ca.ca_cis); 592 } 593 } 594 595 ldesc->len = 2; 596 ldesc->locs[CARDBUSCF_DEV] = sc->sc_device; /* always 0 */ 597 ldesc->locs[CARDBUSCF_FUNCTION] = function; 598 599 if ((csc = config_found_sm_loc((void *)sc, "cardbus", ldesc, 600 &ca, cardbusprint, cardbussubmatch)) == NULL) { 601 /* do not match */ 602 disable_function(sc, function); 603 sc->sc_funcs[function] = NULL; 604 free(ct, M_DEVBUF); 605 } else { 606 /* found */ 607 ct->ct_device = csc; 608 } 609 } 610 /* 611 * XXX power down pseudo function 8 (this will power down the card 612 * if no functions were attached). 613 */ 614 disable_function(sc, 8); 615 616 return (0); 617 } 618 619 static int 620 cardbussubmatch(struct device *parent, struct cfdata *cf, 621 const locdesc_t *ldesc, void *aux) 622 { 623 624 /* ldesc->locs[CARDBUSCF_DEV] is always 0 */ 625 if (cf->cf_loc[CARDBUSCF_DEV] != CARDBUSCF_DEV_DEFAULT && 626 cf->cf_loc[CARDBUSCF_DEV] != ldesc->locs[CARDBUSCF_DEV]) { 627 return (0); 628 } 629 if (cf->cf_loc[CARDBUSCF_FUNCTION] != CARDBUSCF_FUNCTION_DEFAULT && 630 cf->cf_loc[CARDBUSCF_FUNCTION] != ldesc->locs[CARDBUSCF_FUNCTION]) { 631 return (0); 632 } 633 634 return (config_match(parent, cf, aux)); 635 } 636 637 static int 638 cardbusprint(void *aux, const char *pnp) 639 { 640 struct cardbus_attach_args *ca = aux; 641 char devinfo[256]; 642 int i; 643 644 if (pnp) { 645 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 646 sizeof(devinfo)); 647 for (i = 0; i < 4; i++) { 648 if (ca->ca_cis.cis1_info[i] == NULL) 649 break; 650 if (i) 651 aprint_normal(", "); 652 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 653 } 654 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 655 i ? " " : "", 656 ca->ca_cis.manufacturer, ca->ca_cis.product); 657 aprint_normal(" %s at %s", devinfo, pnp); 658 } 659 aprint_normal(" dev %d function %d", ca->ca_device, ca->ca_function); 660 661 return (UNCONF); 662 } 663 664 /* 665 * void cardbus_detach_card(struct cardbus_softc *sc) 666 * 667 * This function detaches the card on the slot: detach device data 668 * structure and turns off the power. 669 * 670 * This function must not be called under interrupt context. 671 */ 672 void 673 cardbus_detach_card(struct cardbus_softc *sc) 674 { 675 int f; 676 struct cardbus_devfunc *ct; 677 678 for (f = 0; f < 8; f++) { 679 ct = sc->sc_funcs[f]; 680 if (!ct) 681 continue; 682 683 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 684 ct->ct_device->dv_xname)); 685 /* call device detach function */ 686 687 if (config_detach(ct->ct_device, 0) != 0) { 688 printf("%s: cannot detach dev %s, function %d\n", 689 sc->sc_dev.dv_xname, ct->ct_device->dv_xname, 690 ct->ct_func); 691 } 692 } 693 694 sc->sc_poweron_func = 0; 695 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 696 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 697 } 698 699 void 700 cardbus_childdetached(struct device *self, struct device *child) 701 { 702 struct cardbus_softc *sc = (struct cardbus_softc *)self; 703 struct cardbus_devfunc *ct; 704 705 ct = sc->sc_funcs[child->dv_locators[CARDBUSCF_FUNCTION]]; 706 KASSERT(ct->ct_device == child); 707 708 sc->sc_poweron_func &= ~(1 << ct->ct_func); 709 sc->sc_funcs[ct->ct_func] = NULL; 710 free(ct, M_DEVBUF); 711 } 712 713 /* 714 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 715 * Interrupt handler of pccard. 716 * args: 717 * cardbus_chipset_tag_t *cc 718 * int irq: 719 */ 720 void * 721 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 722 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 723 { 724 725 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 726 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 727 } 728 729 /* 730 * void cardbus_intr_disestablish(cc, cf, handler) 731 * Interrupt handler of pccard. 732 * args: 733 * cardbus_chipset_tag_t *cc 734 */ 735 void 736 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 737 void *handler) 738 { 739 740 DPRINTF(("- pccard_intr_disestablish\n")); 741 (*cf->cardbus_intr_disestablish)(cc, handler); 742 } 743 744 /* 745 * XXX this should be merged with cardbus_function_{enable,disable}, 746 * but we don't have a ct when these functions are called. 747 */ 748 static void 749 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 750 { 751 752 if (sc->sc_poweron_func == 0) { 753 /* switch to 3V and/or wait for power to stabilize */ 754 if (cdstatus & CARDBUS_3V_CARD) { 755 /* 756 * sc_poweron_func must be substituted before 757 * entering sleep, in order to avoid turn on 758 * power twice. 759 */ 760 sc->sc_poweron_func |= (1 << function); 761 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 762 } else { 763 /* No cards other than 3.3V cards. */ 764 return; 765 } 766 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 767 } 768 sc->sc_poweron_func |= (1 << function); 769 } 770 771 static void 772 disable_function(struct cardbus_softc *sc, int function) 773 { 774 775 sc->sc_poweron_func &= ~(1 << function); 776 if (sc->sc_poweron_func == 0) { 777 /* power-off because no functions are enabled */ 778 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 779 } 780 } 781 782 /* 783 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 784 * 785 * This function enables a function on a card. When no power is 786 * applied on the card, power will be applied on it. 787 */ 788 int 789 cardbus_function_enable(struct cardbus_softc *sc, int func) 790 { 791 cardbus_chipset_tag_t cc = sc->sc_cc; 792 cardbus_function_tag_t cf = sc->sc_cf; 793 cardbusreg_t command; 794 cardbustag_t tag; 795 796 DPRINTF(("entering cardbus_function_enable... ")); 797 798 /* entering critical area */ 799 800 /* XXX: sc_vold should be used */ 801 enable_function(sc, CARDBUS_3V_CARD, func); 802 803 /* exiting critical area */ 804 805 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 806 807 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 808 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 809 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 810 811 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 812 813 cardbus_free_tag(cc, cf, tag); 814 815 DPRINTF(("%x\n", sc->sc_poweron_func)); 816 817 return (0); 818 } 819 820 /* 821 * int cardbus_function_disable(struct cardbus_softc *, int func) 822 * 823 * This function disable a function on a card. When no functions are 824 * enabled, it turns off the power. 825 */ 826 int 827 cardbus_function_disable(struct cardbus_softc *sc, int func) 828 { 829 830 DPRINTF(("entering cardbus_function_disable... ")); 831 832 disable_function(sc, func); 833 834 return (0); 835 } 836 837 /* 838 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 839 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 840 * cardbusreg_t *value) 841 * 842 * Find the specified PCI capability. 843 */ 844 int 845 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 846 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 847 { 848 cardbusreg_t reg; 849 unsigned int ofs; 850 851 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 852 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 853 return (0); 854 855 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 856 PCI_CAPLISTPTR_REG)); 857 while (ofs != 0) { 858 #ifdef DIAGNOSTIC 859 if ((ofs & 3) || (ofs < 0x40)) 860 panic("cardbus_get_capability"); 861 #endif 862 reg = cardbus_conf_read(cc, cf, tag, ofs); 863 if (PCI_CAPLIST_CAP(reg) == capid) { 864 if (offset) 865 *offset = ofs; 866 if (value) 867 *value = reg; 868 return (1); 869 } 870 ofs = PCI_CAPLIST_NEXT(reg); 871 } 872 873 return (0); 874 } 875 876 /* 877 * below this line, there are some functions for decoding tuples. 878 * They should go out from this file. 879 */ 880 881 static u_int8_t * 882 decode_tuple(u_int8_t *, u_int8_t *, tuple_decode_func, void *); 883 884 static int 885 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 886 { 887 u_int8_t *tp = tuple; 888 889 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 890 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 891 return (0); 892 } 893 894 while ((tp = decode_tuple(tp, tuple + buflen, func, data)) != NULL) 895 ; 896 897 return (1); 898 } 899 900 static u_int8_t * 901 decode_tuple(u_int8_t *tuple, u_int8_t *end, 902 tuple_decode_func func, void *data) 903 { 904 u_int8_t type; 905 u_int8_t len; 906 907 type = tuple[0]; 908 switch (type) { 909 case PCMCIA_CISTPL_NULL: 910 case PCMCIA_CISTPL_END: 911 len = 1; 912 break; 913 default: 914 if (tuple + 2 > end) 915 return (NULL); 916 len = tuple[1] + 2; 917 break; 918 } 919 920 if (tuple + len > end) 921 return (NULL); 922 923 (*func)(tuple, len, data); 924 925 if (type == PCMCIA_CISTPL_END || tuple + len == end) 926 return (NULL); 927 928 return (tuple + len); 929 } 930 931 /* 932 * XXX: this is another reason why this code should be shared with PCI. 933 */ 934 int 935 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 936 int *oldstate) 937 { 938 cardbus_chipset_tag_t cc = ct->ct_cc; 939 cardbus_function_tag_t cf = ct->ct_cf; 940 941 int offset; 942 pcireg_t value, cap, now; 943 944 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 945 &value)) 946 return EOPNOTSUPP; 947 948 cap = value >> 16; 949 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 950 now = value & PCI_PMCSR_STATE_MASK; 951 value &= ~PCI_PMCSR_STATE_MASK; 952 if (oldstate) { 953 switch (now) { 954 case PCI_PMCSR_STATE_D0: 955 *oldstate = PCI_PWR_D0; 956 break; 957 case PCI_PMCSR_STATE_D1: 958 *oldstate = PCI_PWR_D1; 959 break; 960 case PCI_PMCSR_STATE_D2: 961 *oldstate = PCI_PWR_D2; 962 break; 963 case PCI_PMCSR_STATE_D3: 964 *oldstate = PCI_PWR_D3; 965 break; 966 default: 967 return EINVAL; 968 } 969 } 970 if (newstate == NULL) 971 return 0; 972 switch (*newstate) { 973 case PCI_PWR_D0: 974 if (now == PCI_PMCSR_STATE_D0) 975 return 0; 976 value |= PCI_PMCSR_STATE_D0; 977 break; 978 case PCI_PWR_D1: 979 if (now == PCI_PMCSR_STATE_D1) 980 return 0; 981 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 982 return EINVAL; 983 if (!(cap & PCI_PMCR_D1SUPP)) 984 return EOPNOTSUPP; 985 value |= PCI_PMCSR_STATE_D1; 986 break; 987 case PCI_PWR_D2: 988 if (now == PCI_PMCSR_STATE_D2) 989 return 0; 990 if (now == PCI_PMCSR_STATE_D3) 991 return EINVAL; 992 if (!(cap & PCI_PMCR_D2SUPP)) 993 return EOPNOTSUPP; 994 value |= PCI_PMCSR_STATE_D2; 995 break; 996 case PCI_PWR_D3: 997 if (now == PCI_PMCSR_STATE_D3) 998 return 0; 999 value |= PCI_PMCSR_STATE_D3; 1000 break; 1001 default: 1002 return EINVAL; 1003 } 1004 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 1005 DELAY(1000); 1006 1007 return 0; 1008 } 1009 1010 int 1011 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 1012 int newpwr) 1013 { 1014 int oldpwr, error; 1015 1016 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 1017 return error; 1018 1019 if (oldpwr == newpwr) 1020 return 0; 1021 1022 if (oldpwr > newpwr) { 1023 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 1024 return 0; 1025 } 1026 1027 /* oldpwr < newpwr */ 1028 switch (oldpwr) { 1029 case PCI_PWR_D3: 1030 /* 1031 * XXX: This is because none of the devices do 1032 * the necessary song and dance for now to wakeup 1033 * Once this 1034 */ 1035 printf("%s: cannot wake up from power state D%d\n", 1036 dvname, oldpwr); 1037 return EINVAL; 1038 default: 1039 printf("%s: waking up from power state D%d\n", 1040 dvname, oldpwr); 1041 return 0; 1042 } 1043 } 1044 1045 1046 #ifdef CARDBUS_DEBUG 1047 static const char *tuple_name(int); 1048 static const char *tuple_names[] = { 1049 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 1050 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 1051 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 1052 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 1053 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 1054 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 1055 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 1056 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 1057 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 1058 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 1059 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 1060 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 1061 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 1062 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 1063 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 1064 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 1065 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 1066 "DATE", "BATTERY", "ORG" 1067 }; 1068 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 1069 1070 static const char * 1071 tuple_name(int type) 1072 { 1073 1074 if (0 <= type && type < NAME_LEN(tuple_names)) { 1075 return (tuple_names[type]); 1076 } else if (type == 0xff) { 1077 return ("END"); 1078 } else { 1079 return ("Reserved"); 1080 } 1081 } 1082 1083 static void 1084 print_tuple(u_int8_t *tuple, int len, void *data) 1085 { 1086 int i; 1087 1088 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1089 1090 for (i = 0; i < len; ++i) { 1091 if (i % 16 == 0) { 1092 printf(" 0x%2x:", i); 1093 } 1094 printf(" %x", tuple[i]); 1095 if (i % 16 == 15) { 1096 printf("\n"); 1097 } 1098 } 1099 if (i % 16 != 0) { 1100 printf("\n"); 1101 } 1102 } 1103 #endif 1104
Indexes created Tue Sep 30 20:09:53 GMT 2025