cardbus.c revision 1.67
1 /* $NetBSD: cardbus.c,v 1.67 2005/10/25 16:37:50 drochner 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 1.67 2005/10/25 16:37:50 drochner 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 cardbusprint(void *, const char *); 77 78 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 79 80 static int decode_tuples(u_int8_t *, int, tuple_decode_func, void*); 81 #ifdef CARDBUS_DEBUG 82 static void print_tuple(u_int8_t*, int, void*); 83 #endif 84 85 static int cardbus_read_tuples(struct cardbus_attach_args *, 86 cardbusreg_t, u_int8_t *, size_t); 87 88 static void enable_function(struct cardbus_softc *, int, int); 89 static void disable_function(struct cardbus_softc *, int); 90 91 CFATTACH_DECL2(cardbus, sizeof(struct cardbus_softc), 92 cardbusmatch, cardbusattach, NULL, NULL, 93 cardbus_rescan, cardbus_childdetached); 94 95 #ifndef __NetBSD_Version__ 96 struct cfdriver cardbus_cd = { 97 NULL, "cardbus", DV_DULL 98 }; 99 #endif 100 101 102 STATIC int 103 cardbusmatch(struct device *parent, struct cfdata *cf, void *aux) 104 { 105 struct cbslot_attach_args *cba = aux; 106 107 if (strcmp(cba->cba_busname, cf->cf_name)) { 108 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 109 cba->cba_busname, cf->cf_name)); 110 return (0); 111 } 112 113 return (1); 114 } 115 116 STATIC void 117 cardbusattach(struct device *parent, struct device *self, void *aux) 118 { 119 struct cardbus_softc *sc = (void *)self; 120 struct cbslot_attach_args *cba = aux; 121 122 sc->sc_bus = cba->cba_bus; 123 sc->sc_intrline = cba->cba_intrline; 124 sc->sc_cacheline = cba->cba_cacheline; 125 sc->sc_lattimer = cba->cba_lattimer; 126 127 printf(": bus %d", sc->sc_bus); 128 if (bootverbose) 129 printf(" cacheline 0x%x, lattimer 0x%x", sc->sc_cacheline, 130 sc->sc_lattimer); 131 printf("\n"); 132 133 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 134 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 135 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 136 sc->sc_cc = cba->cba_cc; 137 sc->sc_cf = cba->cba_cf; 138 139 #if rbus 140 sc->sc_rbus_iot = cba->cba_rbus_iot; 141 sc->sc_rbus_memt = cba->cba_rbus_memt; 142 #endif 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 SIMPLEQ_FOREACH(p, &rom_image, next) { 237 if (p->rom_image == 238 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 239 bus_space_read_region_1(p->romt, 240 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 241 tuples, MIN(p->image_size, len)); 242 found++; 243 break; 244 } 245 } 246 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 247 SIMPLEQ_REMOVE_HEAD(&rom_image, next); 248 free(p, M_DEVBUF); 249 } 250 out: 251 exrom = cardbus_conf_read(cc, cf, tag, reg); 252 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 253 splx(save); 254 } else { 255 command = cardbus_conf_read(cc, cf, tag, 256 CARDBUS_COMMAND_STATUS_REG); 257 cardbus_conf_write(cc, cf, tag, 258 CARDBUS_COMMAND_STATUS_REG, 259 command | CARDBUS_COMMAND_MEM_ENABLE); 260 /* XXX byte order? */ 261 bus_space_read_region_1(ca->ca_memt, bar_memh, 262 cis_ptr, tuples, MIN(bar_size, len)); 263 found++; 264 } 265 command = cardbus_conf_read(cc, cf, tag, 266 CARDBUS_COMMAND_STATUS_REG); 267 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 268 command & ~CARDBUS_COMMAND_MEM_ENABLE); 269 cardbus_conf_write(cc, cf, tag, reg, 0); 270 271 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 272 bar_size); 273 break; 274 275 #ifdef DIAGNOSTIC 276 default: 277 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 278 cardbus_space); 279 #endif 280 } 281 return (!found); 282 } 283 284 static void 285 parse_tuple(u_int8_t *tuple, int len, void *data) 286 { 287 struct cardbus_cis_info *cis = data; 288 char *p; 289 int i, bar_index; 290 291 switch (tuple[0]) { 292 case PCMCIA_CISTPL_MANFID: 293 if (tuple[1] != 4) { 294 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 295 __func__, tuple[1])); 296 break; 297 } 298 cis->manufacturer = tuple[2] | (tuple[3] << 8); 299 cis->product = tuple[4] | (tuple[5] << 8); 300 break; 301 302 case PCMCIA_CISTPL_VERS_1: 303 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 304 i = 0; 305 p = cis->cis1_info_buf + 2; 306 while (i < 307 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 308 if (p >= cis->cis1_info_buf + tuple[1] || *p == '\xff') 309 break; 310 cis->cis1_info[i++] = p; 311 while (*p != '\0' && *p != '\xff') 312 p++; 313 if (*p == '\0') 314 p++; 315 } 316 break; 317 318 case PCMCIA_CISTPL_BAR: 319 if (tuple[1] != 6) { 320 DPRINTF(("%s: BAR with short length (%d)\n", 321 __func__, tuple[1])); 322 break; 323 } 324 bar_index = tuple[2] & 7; 325 if (bar_index == 0) { 326 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 327 break; 328 } 329 bar_index--; 330 cis->bar[bar_index].flags = tuple[2]; 331 cis->bar[bar_index].size = 332 (tuple[4] << 0) | 333 (tuple[5] << 8) | 334 (tuple[6] << 16) | 335 (tuple[7] << 24); 336 break; 337 338 case PCMCIA_CISTPL_FUNCID: 339 cis->funcid = tuple[2]; 340 break; 341 342 case PCMCIA_CISTPL_FUNCE: 343 switch (cis->funcid) { 344 case PCMCIA_FUNCTION_SERIAL: 345 if (tuple[1] >= 2 && 346 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */ 347 tuple[2] == 0) { 348 cis->funce.serial.uart_type = tuple[3] & 0x1f; 349 cis->funce.serial.uart_present = 1; 350 } 351 break; 352 353 case PCMCIA_FUNCTION_NETWORK: 354 if (tuple[1] >= 8 && 355 tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 356 if (tuple[3] > 357 sizeof(cis->funce.network.netid)) { 358 DPRINTF(("%s: unknown network id type " 359 "(len = %d)\n", 360 __func__, tuple[3])); 361 } else { 362 cis->funce.network.netid_present = 1; 363 memcpy(cis->funce.network.netid, 364 tuple + 4, tuple[3]); 365 } 366 } 367 break; 368 } 369 break; 370 } 371 } 372 373 /* 374 * int cardbus_attach_card(struct cardbus_softc *sc) 375 * 376 * This function attaches the card on the slot: turns on power, 377 * reads and analyses tuple, sets configuration index. 378 * 379 * This function returns the number of recognised device functions. 380 * If no functions are recognised, return 0. 381 */ 382 int 383 cardbus_attach_card(struct cardbus_softc *sc) 384 { 385 cardbus_chipset_tag_t cc; 386 cardbus_function_tag_t cf; 387 int cdstatus; 388 static int wildcard[CARDBUSCF_NLOCS] = { 389 CARDBUSCF_FUNCTION_DEFAULT 390 }; 391 392 cc = sc->sc_cc; 393 cf = sc->sc_cf; 394 395 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 396 397 /* inspect initial voltage */ 398 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 399 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 400 sc->sc_dev.dv_unit)); 401 return (0); 402 } 403 404 cardbus_rescan(&sc->sc_dev, "cardbus", wildcard); 405 return (1); /* XXX */ 406 } 407 408 int 409 cardbus_rescan(struct device *self, const char *ifattr, const int *locators) 410 { 411 struct cardbus_softc *sc = (struct cardbus_softc *)self; 412 cardbus_chipset_tag_t cc; 413 cardbus_function_tag_t cf; 414 cardbustag_t tag; 415 cardbusreg_t id, class, cis_ptr; 416 cardbusreg_t bhlc; 417 u_int8_t tuple[2048]; 418 int cdstatus; 419 int function, nfunction; 420 struct device *csc; 421 cardbus_devfunc_t ct; 422 423 cc = sc->sc_cc; 424 cf = sc->sc_cf; 425 426 /* inspect initial voltage */ 427 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 428 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 429 sc->sc_dev.dv_unit)); 430 return (0); 431 } 432 433 /* 434 * XXX use fake function 8 to keep power on during whole 435 * configuration. 436 */ 437 enable_function(sc, cdstatus, 8); 438 function = 0; 439 440 tag = cardbus_make_tag(cc, cf, sc->sc_bus, function); 441 442 /* 443 * Wait until power comes up. Maxmum 500 ms. 444 */ 445 { 446 int i; 447 448 for (i = 0; i < 5; ++i) { 449 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 450 if (id != 0xffffffff && id != 0) { 451 break; 452 } 453 if (cold) { /* before kernel thread invoked */ 454 delay(100 * 1000); 455 } else { /* thread context */ 456 if (tsleep((void *)sc, PCATCH, "cardbus", 457 hz / 10) != EWOULDBLOCK) { 458 break; 459 } 460 } 461 } 462 if (i == 5) { 463 return (EIO); 464 } 465 } 466 467 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 468 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 469 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 470 471 for (function = 0; function < nfunction; function++) { 472 struct cardbus_attach_args ca; 473 int locs[CARDBUSCF_NLOCS]; 474 475 if (locators[CARDBUSCF_FUNCTION] != 476 CARDBUSCF_FUNCTION_DEFAULT && 477 locators[CARDBUSCF_FUNCTION] != function) 478 continue; 479 480 if (sc->sc_funcs[function]) 481 continue; 482 483 tag = cardbus_make_tag(cc, cf, sc->sc_bus, function); 484 485 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 486 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 487 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 488 489 /* Invalid vendor ID value? */ 490 if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID) { 491 continue; 492 } 493 494 DPRINTF(("cardbus_attach_card: " 495 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 496 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 497 498 enable_function(sc, cdstatus, function); 499 500 /* clean up every BAR */ 501 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 502 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 503 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 504 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 505 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 506 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 507 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 508 509 /* set initial latency and cacheline size */ 510 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 511 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 512 function, bhlc)); 513 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 514 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 515 bhlc |= (sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << 516 CARDBUS_CACHELINE_SHIFT; 517 bhlc |= (sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << 518 CARDBUS_LATTIMER_SHIFT; 519 520 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 521 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 522 DPRINTF(("0x%08x\n", bhlc)); 523 524 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 525 bhlc &= ~(CARDBUS_LATTIMER_MASK << 526 CARDBUS_LATTIMER_SHIFT); 527 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 528 cardbus_conf_write(cc, cf, tag, 529 CARDBUS_BHLC_REG, bhlc); 530 } 531 532 /* 533 * We need to allocate the ct here, since we might 534 * need it when reading the CIS 535 */ 536 if ((ct = malloc(sizeof(struct cardbus_devfunc), 537 M_DEVBUF, M_NOWAIT)) == NULL) { 538 panic("no room for cardbus_tag"); 539 } 540 541 ct->ct_cc = sc->sc_cc; 542 ct->ct_cf = sc->sc_cf; 543 ct->ct_bus = sc->sc_bus; 544 ct->ct_func = function; 545 ct->ct_sc = sc; 546 sc->sc_funcs[function] = ct; 547 548 memset(&ca, 0, sizeof(ca)); 549 550 ca.ca_ct = ct; 551 552 ca.ca_iot = sc->sc_iot; 553 ca.ca_memt = sc->sc_memt; 554 ca.ca_dmat = sc->sc_dmat; 555 556 #if rbus 557 ca.ca_rbus_iot = sc->sc_rbus_iot; 558 ca.ca_rbus_memt= sc->sc_rbus_memt; 559 #endif 560 561 ca.ca_tag = tag; 562 ca.ca_bus = sc->sc_bus; 563 ca.ca_function = function; 564 ca.ca_id = id; 565 ca.ca_class = class; 566 567 ca.ca_intrline = sc->sc_intrline; 568 569 if (cis_ptr != 0) { 570 if (cardbus_read_tuples(&ca, cis_ptr, 571 tuple, sizeof(tuple))) { 572 printf("cardbus_attach_card: " 573 "failed to read CIS\n"); 574 } else { 575 #ifdef CARDBUS_DEBUG 576 decode_tuples(tuple, sizeof(tuple), 577 print_tuple, NULL); 578 #endif 579 decode_tuples(tuple, sizeof(tuple), 580 parse_tuple, &ca.ca_cis); 581 } 582 } 583 584 locs[CARDBUSCF_FUNCTION] = function; 585 586 if ((csc = config_found_sm_loc((void *)sc, "cardbus", locs, 587 &ca, cardbusprint, config_stdsubmatch)) == NULL) { 588 /* do not match */ 589 disable_function(sc, function); 590 sc->sc_funcs[function] = NULL; 591 free(ct, M_DEVBUF); 592 } else { 593 /* found */ 594 ct->ct_device = csc; 595 } 596 } 597 /* 598 * XXX power down pseudo function 8 (this will power down the card 599 * if no functions were attached). 600 */ 601 disable_function(sc, 8); 602 603 return (0); 604 } 605 606 static int 607 cardbusprint(void *aux, const char *pnp) 608 { 609 struct cardbus_attach_args *ca = aux; 610 char devinfo[256]; 611 int i; 612 613 if (pnp) { 614 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 615 sizeof(devinfo)); 616 for (i = 0; i < 4; i++) { 617 if (ca->ca_cis.cis1_info[i] == NULL) 618 break; 619 if (i) 620 aprint_normal(", "); 621 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 622 } 623 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 624 i ? " " : "", 625 ca->ca_cis.manufacturer, ca->ca_cis.product); 626 aprint_normal(" %s at %s", devinfo, pnp); 627 } 628 aprint_normal(" function %d", ca->ca_function); 629 630 return (UNCONF); 631 } 632 633 /* 634 * void cardbus_detach_card(struct cardbus_softc *sc) 635 * 636 * This function detaches the card on the slot: detach device data 637 * structure and turns off the power. 638 * 639 * This function must not be called under interrupt context. 640 */ 641 void 642 cardbus_detach_card(struct cardbus_softc *sc) 643 { 644 int f; 645 struct cardbus_devfunc *ct; 646 647 for (f = 0; f < 8; f++) { 648 ct = sc->sc_funcs[f]; 649 if (!ct) 650 continue; 651 652 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 653 ct->ct_device->dv_xname)); 654 /* call device detach function */ 655 656 if (config_detach(ct->ct_device, 0) != 0) { 657 printf("%s: cannot detach dev %s, function %d\n", 658 sc->sc_dev.dv_xname, ct->ct_device->dv_xname, 659 ct->ct_func); 660 } 661 } 662 663 sc->sc_poweron_func = 0; 664 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 665 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 666 } 667 668 void 669 cardbus_childdetached(struct device *self, struct device *child) 670 { 671 struct cardbus_softc *sc = (struct cardbus_softc *)self; 672 struct cardbus_devfunc *ct; 673 674 ct = sc->sc_funcs[child->dv_locators[CARDBUSCF_FUNCTION]]; 675 KASSERT(ct->ct_device == child); 676 677 sc->sc_poweron_func &= ~(1 << ct->ct_func); 678 sc->sc_funcs[ct->ct_func] = NULL; 679 free(ct, M_DEVBUF); 680 } 681 682 /* 683 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 684 * Interrupt handler of pccard. 685 * args: 686 * cardbus_chipset_tag_t *cc 687 * int irq: 688 */ 689 void * 690 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 691 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 692 { 693 694 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 695 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 696 } 697 698 /* 699 * void cardbus_intr_disestablish(cc, cf, handler) 700 * Interrupt handler of pccard. 701 * args: 702 * cardbus_chipset_tag_t *cc 703 */ 704 void 705 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 706 void *handler) 707 { 708 709 DPRINTF(("- pccard_intr_disestablish\n")); 710 (*cf->cardbus_intr_disestablish)(cc, handler); 711 } 712 713 /* 714 * XXX this should be merged with cardbus_function_{enable,disable}, 715 * but we don't have a ct when these functions are called. 716 */ 717 static void 718 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 719 { 720 721 if (sc->sc_poweron_func == 0) { 722 /* switch to 3V and/or wait for power to stabilize */ 723 if (cdstatus & CARDBUS_3V_CARD) { 724 /* 725 * sc_poweron_func must be substituted before 726 * entering sleep, in order to avoid turn on 727 * power twice. 728 */ 729 sc->sc_poweron_func |= (1 << function); 730 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 731 } else { 732 /* No cards other than 3.3V cards. */ 733 return; 734 } 735 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 736 } 737 sc->sc_poweron_func |= (1 << function); 738 } 739 740 static void 741 disable_function(struct cardbus_softc *sc, int function) 742 { 743 744 sc->sc_poweron_func &= ~(1 << function); 745 if (sc->sc_poweron_func == 0) { 746 /* power-off because no functions are enabled */ 747 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 748 } 749 } 750 751 /* 752 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 753 * 754 * This function enables a function on a card. When no power is 755 * applied on the card, power will be applied on it. 756 */ 757 int 758 cardbus_function_enable(struct cardbus_softc *sc, int func) 759 { 760 cardbus_chipset_tag_t cc = sc->sc_cc; 761 cardbus_function_tag_t cf = sc->sc_cf; 762 cardbusreg_t command; 763 cardbustag_t tag; 764 765 DPRINTF(("entering cardbus_function_enable... ")); 766 767 /* entering critical area */ 768 769 /* XXX: sc_vold should be used */ 770 enable_function(sc, CARDBUS_3V_CARD, func); 771 772 /* exiting critical area */ 773 774 tag = cardbus_make_tag(cc, cf, sc->sc_bus, func); 775 776 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 777 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 778 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 779 780 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 781 782 cardbus_free_tag(cc, cf, tag); 783 784 DPRINTF(("%x\n", sc->sc_poweron_func)); 785 786 return (0); 787 } 788 789 /* 790 * int cardbus_function_disable(struct cardbus_softc *, int func) 791 * 792 * This function disable a function on a card. When no functions are 793 * enabled, it turns off the power. 794 */ 795 int 796 cardbus_function_disable(struct cardbus_softc *sc, int func) 797 { 798 799 DPRINTF(("entering cardbus_function_disable... ")); 800 801 disable_function(sc, func); 802 803 return (0); 804 } 805 806 /* 807 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 808 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 809 * cardbusreg_t *value) 810 * 811 * Find the specified PCI capability. 812 */ 813 int 814 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 815 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 816 { 817 cardbusreg_t reg; 818 unsigned int ofs; 819 820 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 821 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 822 return (0); 823 824 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 825 PCI_CAPLISTPTR_REG)); 826 while (ofs != 0) { 827 #ifdef DIAGNOSTIC 828 if ((ofs & 3) || (ofs < 0x40)) 829 panic("cardbus_get_capability"); 830 #endif 831 reg = cardbus_conf_read(cc, cf, tag, ofs); 832 if (PCI_CAPLIST_CAP(reg) == capid) { 833 if (offset) 834 *offset = ofs; 835 if (value) 836 *value = reg; 837 return (1); 838 } 839 ofs = PCI_CAPLIST_NEXT(reg); 840 } 841 842 return (0); 843 } 844 845 /* 846 * below this line, there are some functions for decoding tuples. 847 * They should go out from this file. 848 */ 849 850 static u_int8_t * 851 decode_tuple(u_int8_t *, u_int8_t *, tuple_decode_func, void *); 852 853 static int 854 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, 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 ((tp = decode_tuple(tp, tuple + buflen, func, data)) != NULL) 864 ; 865 866 return (1); 867 } 868 869 static u_int8_t * 870 decode_tuple(u_int8_t *tuple, u_int8_t *end, 871 tuple_decode_func func, void *data) 872 { 873 u_int8_t type; 874 u_int8_t len; 875 876 type = tuple[0]; 877 switch (type) { 878 case PCMCIA_CISTPL_NULL: 879 case PCMCIA_CISTPL_END: 880 len = 1; 881 break; 882 default: 883 if (tuple + 2 > end) 884 return (NULL); 885 len = tuple[1] + 2; 886 break; 887 } 888 889 if (tuple + len > end) 890 return (NULL); 891 892 (*func)(tuple, len, data); 893 894 if (type == PCMCIA_CISTPL_END || tuple + len == end) 895 return (NULL); 896 897 return (tuple + len); 898 } 899 900 /* 901 * XXX: this is another reason why this code should be shared with PCI. 902 */ 903 int 904 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 905 int *oldstate) 906 { 907 cardbus_chipset_tag_t cc = ct->ct_cc; 908 cardbus_function_tag_t cf = ct->ct_cf; 909 910 int offset; 911 pcireg_t value, cap, now; 912 913 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 914 &value)) 915 return EOPNOTSUPP; 916 917 cap = value >> 16; 918 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 919 now = value & PCI_PMCSR_STATE_MASK; 920 value &= ~PCI_PMCSR_STATE_MASK; 921 if (oldstate) { 922 switch (now) { 923 case PCI_PMCSR_STATE_D0: 924 *oldstate = PCI_PWR_D0; 925 break; 926 case PCI_PMCSR_STATE_D1: 927 *oldstate = PCI_PWR_D1; 928 break; 929 case PCI_PMCSR_STATE_D2: 930 *oldstate = PCI_PWR_D2; 931 break; 932 case PCI_PMCSR_STATE_D3: 933 *oldstate = PCI_PWR_D3; 934 break; 935 default: 936 return EINVAL; 937 } 938 } 939 if (newstate == NULL) 940 return 0; 941 switch (*newstate) { 942 case PCI_PWR_D0: 943 if (now == PCI_PMCSR_STATE_D0) 944 return 0; 945 value |= PCI_PMCSR_STATE_D0; 946 break; 947 case PCI_PWR_D1: 948 if (now == PCI_PMCSR_STATE_D1) 949 return 0; 950 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 951 return EINVAL; 952 if (!(cap & PCI_PMCR_D1SUPP)) 953 return EOPNOTSUPP; 954 value |= PCI_PMCSR_STATE_D1; 955 break; 956 case PCI_PWR_D2: 957 if (now == PCI_PMCSR_STATE_D2) 958 return 0; 959 if (now == PCI_PMCSR_STATE_D3) 960 return EINVAL; 961 if (!(cap & PCI_PMCR_D2SUPP)) 962 return EOPNOTSUPP; 963 value |= PCI_PMCSR_STATE_D2; 964 break; 965 case PCI_PWR_D3: 966 if (now == PCI_PMCSR_STATE_D3) 967 return 0; 968 value |= PCI_PMCSR_STATE_D3; 969 break; 970 default: 971 return EINVAL; 972 } 973 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 974 DELAY(1000); 975 976 return 0; 977 } 978 979 int 980 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 981 int newpwr) 982 { 983 int oldpwr, error; 984 985 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 986 return error; 987 988 if (oldpwr == newpwr) 989 return 0; 990 991 if (oldpwr > newpwr) { 992 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 993 return 0; 994 } 995 996 /* oldpwr < newpwr */ 997 switch (oldpwr) { 998 case PCI_PWR_D3: 999 /* 1000 * XXX: This is because none of the devices do 1001 * the necessary song and dance for now to wakeup 1002 * Once this 1003 */ 1004 printf("%s: cannot wake up from power state D%d\n", 1005 dvname, oldpwr); 1006 return EINVAL; 1007 default: 1008 printf("%s: waking up from power state D%d\n", 1009 dvname, oldpwr); 1010 return 0; 1011 } 1012 } 1013 1014 1015 #ifdef CARDBUS_DEBUG 1016 static const char *tuple_name(int); 1017 static const char *tuple_names[] = { 1018 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 1019 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 1020 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 1021 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 1022 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 1023 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 1024 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 1025 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 1026 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 1027 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 1028 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 1029 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 1030 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 1031 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 1032 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 1033 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 1034 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 1035 "DATE", "BATTERY", "ORG" 1036 }; 1037 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 1038 1039 static const char * 1040 tuple_name(int type) 1041 { 1042 1043 if (0 <= type && type < NAME_LEN(tuple_names)) { 1044 return (tuple_names[type]); 1045 } else if (type == 0xff) { 1046 return ("END"); 1047 } else { 1048 return ("Reserved"); 1049 } 1050 } 1051 1052 static void 1053 print_tuple(u_int8_t *tuple, int len, void *data) 1054 { 1055 int i; 1056 1057 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1058 1059 for (i = 0; i < len; ++i) { 1060 if (i % 16 == 0) { 1061 printf(" 0x%2x:", i); 1062 } 1063 printf(" %x", tuple[i]); 1064 if (i % 16 == 15) { 1065 printf("\n"); 1066 } 1067 } 1068 if (i % 16 != 0) { 1069 printf("\n"); 1070 } 1071 } 1072 #endif 1073
Indexes created Tue Sep 30 11:09:46 GMT 2025