cardbus.c revision 1.55
1 /* $NetBSD: cardbus.c,v 1.55 2004/08/23 18:21:51 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 1.55 2004/08/23 18:21:51 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 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, 256); 245 found++; 246 } 247 break; 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, 256); 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] != CARDBUSCF_FUNCTION_DEFAULT) 484 && (locators[CARDBUSCF_FUNCTION] != function)) 485 continue; 486 487 if (sc->sc_funcs[function]) 488 continue; 489 490 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 491 function); 492 493 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 494 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 495 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 496 497 /* Invalid vendor ID value? */ 498 if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID) { 499 continue; 500 } 501 502 DPRINTF(("cardbus_attach_card: " 503 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 504 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 505 506 enable_function(sc, cdstatus, function); 507 508 /* clean up every BAR */ 509 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 510 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 511 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 512 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 513 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 514 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 515 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 516 517 /* set initial latency and cacheline size */ 518 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 519 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 520 function, bhlc)); 521 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 522 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 523 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 524 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 525 526 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 527 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 528 DPRINTF(("0x%08x\n", bhlc)); 529 530 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 531 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 532 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 533 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 534 } 535 536 /* 537 * We need to allocate the ct here, since we might 538 * need it when reading the CIS 539 */ 540 if ((ct = malloc(sizeof(struct cardbus_devfunc), 541 M_DEVBUF, M_NOWAIT)) == NULL) { 542 panic("no room for cardbus_tag"); 543 } 544 545 ct->ct_cc = sc->sc_cc; 546 ct->ct_cf = sc->sc_cf; 547 ct->ct_bus = sc->sc_bus; 548 ct->ct_dev = sc->sc_device; 549 ct->ct_func = function; 550 ct->ct_sc = sc; 551 sc->sc_funcs[function] = ct; 552 553 memset(&ca, 0, sizeof(ca)); 554 555 ca.ca_ct = ct; 556 557 ca.ca_iot = sc->sc_iot; 558 ca.ca_memt = sc->sc_memt; 559 ca.ca_dmat = sc->sc_dmat; 560 561 #if rbus 562 ca.ca_rbus_iot = sc->sc_rbus_iot; 563 ca.ca_rbus_memt= sc->sc_rbus_memt; 564 #endif 565 566 ca.ca_tag = tag; 567 ca.ca_bus = sc->sc_bus; 568 ca.ca_device = sc->sc_device; /* always 0 */ 569 ca.ca_function = function; 570 ca.ca_id = id; 571 ca.ca_class = class; 572 573 ca.ca_intrline = sc->sc_intrline; 574 575 if (cis_ptr != 0) { 576 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 577 printf("cardbus_attach_card: failed to read CIS\n"); 578 } else { 579 #ifdef CARDBUS_DEBUG 580 decode_tuples(tuple, 2048, print_tuple, NULL); 581 #endif 582 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 583 } 584 } 585 586 ldesc->len = 2; 587 ldesc->locs[CARDBUSCF_DEV] = sc->sc_device; /* always 0 */ 588 ldesc->locs[CARDBUSCF_FUNCTION] = function; 589 590 if ((csc = config_found_sm_loc((void *)sc, "cardbus", ldesc, 591 &ca, cardbusprint, cardbussubmatch)) == NULL) { 592 /* do not match */ 593 disable_function(sc, function); 594 sc->sc_funcs[function] = NULL; 595 free(ct, M_DEVBUF); 596 } else { 597 /* found */ 598 ct->ct_device = csc; 599 } 600 } 601 /* 602 * XXX power down pseudo function 8 (this will power down the card 603 * if no functions were attached). 604 */ 605 disable_function(sc, 8); 606 607 return (0); 608 } 609 610 static int 611 cardbussubmatch(struct device *parent, struct cfdata *cf, 612 const locdesc_t *ldesc, void *aux) 613 { 614 615 /* ldesc->locs[CARDBUSCF_DEV] is always 0 */ 616 if (cf->cf_loc[CARDBUSCF_DEV] != CARDBUSCF_DEV_DEFAULT && 617 cf->cf_loc[CARDBUSCF_DEV] != ldesc->locs[CARDBUSCF_DEV]) { 618 return (0); 619 } 620 if (cf->cf_loc[CARDBUSCF_FUNCTION] != CARDBUSCF_FUNCTION_DEFAULT && 621 cf->cf_loc[CARDBUSCF_FUNCTION] != ldesc->locs[CARDBUSCF_FUNCTION]) { 622 return (0); 623 } 624 625 return (config_match(parent, cf, aux)); 626 } 627 628 static int 629 cardbusprint(void *aux, const char *pnp) 630 { 631 struct cardbus_attach_args *ca = aux; 632 char devinfo[256]; 633 int i; 634 635 if (pnp) { 636 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 637 sizeof(devinfo)); 638 for (i = 0; i < 4; i++) { 639 if (ca->ca_cis.cis1_info[i] == NULL) 640 break; 641 if (i) 642 aprint_normal(", "); 643 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 644 } 645 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 646 i ? " " : "", 647 ca->ca_cis.manufacturer, ca->ca_cis.product); 648 aprint_normal(" %s at %s", devinfo, pnp); 649 } 650 aprint_normal(" dev %d function %d", ca->ca_device, ca->ca_function); 651 652 return (UNCONF); 653 } 654 655 /* 656 * void cardbus_detach_card(struct cardbus_softc *sc) 657 * 658 * This function detaches the card on the slot: detach device data 659 * structure and turns off the power. 660 * 661 * This function must not be called under interrupt context. 662 */ 663 void 664 cardbus_detach_card(struct cardbus_softc *sc) 665 { 666 int f; 667 struct cardbus_devfunc *ct; 668 669 for (f = 0; f < 8; f++) { 670 ct = sc->sc_funcs[f]; 671 if (!ct) 672 continue; 673 674 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 675 ct->ct_device->dv_xname)); 676 /* call device detach function */ 677 678 if (0 != config_detach(ct->ct_device, 0)) { 679 printf("%s: cannot detach dev %s, function %d\n", 680 sc->sc_dev.dv_xname, ct->ct_device->dv_xname, 681 ct->ct_func); 682 } 683 } 684 685 sc->sc_poweron_func = 0; 686 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 687 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 688 } 689 690 void 691 cardbus_childdetached(struct device *self, struct device *child) 692 { 693 struct cardbus_softc *sc = (struct cardbus_softc *)self; 694 struct cardbus_devfunc *ct; 695 696 ct = sc->sc_funcs[child->dv_locators[CARDBUSCF_FUNCTION]]; 697 KASSERT(ct->ct_device == child); 698 699 sc->sc_poweron_func &= ~(1 << ct->ct_func); 700 sc->sc_funcs[ct->ct_func] = NULL; 701 free(ct, M_DEVBUF); 702 } 703 704 /* 705 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 706 * Interrupt handler of pccard. 707 * args: 708 * cardbus_chipset_tag_t *cc 709 * int irq: 710 */ 711 void * 712 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 713 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 714 { 715 716 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 717 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 718 } 719 720 /* 721 * void cardbus_intr_disestablish(cc, cf, handler) 722 * Interrupt handler of pccard. 723 * args: 724 * cardbus_chipset_tag_t *cc 725 */ 726 void 727 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 728 void *handler) 729 { 730 731 DPRINTF(("- pccard_intr_disestablish\n")); 732 (*cf->cardbus_intr_disestablish)(cc, handler); 733 } 734 735 /* 736 * XXX this should be merged with cardbus_function_{enable,disable}, 737 * but we don't have a ct when these functions are called. 738 */ 739 static void 740 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 741 { 742 743 if (sc->sc_poweron_func == 0) { 744 /* switch to 3V and/or wait for power to stabilize */ 745 if (cdstatus & CARDBUS_3V_CARD) { 746 /* 747 * sc_poweron_func must be substituted before 748 * entering sleep, in order to avoid turn on 749 * power twice. 750 */ 751 sc->sc_poweron_func |= (1 << function); 752 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 753 } else { 754 /* No cards other than 3.3V cards. */ 755 return; 756 } 757 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 758 } 759 sc->sc_poweron_func |= (1 << function); 760 } 761 762 static void 763 disable_function(struct cardbus_softc *sc, int function) 764 { 765 766 sc->sc_poweron_func &= ~(1 << function); 767 if (sc->sc_poweron_func == 0) { 768 /* power-off because no functions are enabled */ 769 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 770 } 771 } 772 773 /* 774 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 775 * 776 * This function enables a function on a card. When no power is 777 * applied on the card, power will be applied on it. 778 */ 779 int 780 cardbus_function_enable(struct cardbus_softc *sc, int func) 781 { 782 cardbus_chipset_tag_t cc = sc->sc_cc; 783 cardbus_function_tag_t cf = sc->sc_cf; 784 cardbusreg_t command; 785 cardbustag_t tag; 786 787 DPRINTF(("entering cardbus_function_enable... ")); 788 789 /* entering critical area */ 790 791 /* XXX: sc_vold should be used */ 792 enable_function(sc, CARDBUS_3V_CARD, func); 793 794 /* exiting critical area */ 795 796 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 797 798 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 799 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 800 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 801 802 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 803 804 cardbus_free_tag(cc, cf, tag); 805 806 DPRINTF(("%x\n", sc->sc_poweron_func)); 807 808 return (0); 809 } 810 811 /* 812 * int cardbus_function_disable(struct cardbus_softc *, int func) 813 * 814 * This function disable a function on a card. When no functions are 815 * enabled, it turns off the power. 816 */ 817 int 818 cardbus_function_disable(struct cardbus_softc *sc, int func) 819 { 820 821 DPRINTF(("entering cardbus_function_disable... ")); 822 823 disable_function(sc, func); 824 825 return (0); 826 } 827 828 /* 829 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 830 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 831 * cardbusreg_t *value) 832 * 833 * Find the specified PCI capability. 834 */ 835 int 836 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 837 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 838 { 839 cardbusreg_t reg; 840 unsigned int ofs; 841 842 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 843 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 844 return (0); 845 846 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 847 PCI_CAPLISTPTR_REG)); 848 while (ofs != 0) { 849 #ifdef DIAGNOSTIC 850 if ((ofs & 3) || (ofs < 0x40)) 851 panic("cardbus_get_capability"); 852 #endif 853 reg = cardbus_conf_read(cc, cf, tag, ofs); 854 if (PCI_CAPLIST_CAP(reg) == capid) { 855 if (offset) 856 *offset = ofs; 857 if (value) 858 *value = reg; 859 return (1); 860 } 861 ofs = PCI_CAPLIST_NEXT(reg); 862 } 863 864 return (0); 865 } 866 867 /* 868 * below this line, there are some functions for decoding tuples. 869 * They should go out from this file. 870 */ 871 872 static u_int8_t * 873 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 874 875 static int 876 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 877 { 878 u_int8_t *tp = tuple; 879 880 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 881 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 882 return (0); 883 } 884 885 while (NULL != (tp = decode_tuple(tp, func, data))) { 886 if (tuple + buflen < tp) { 887 break; 888 } 889 } 890 891 return (1); 892 } 893 894 static u_int8_t * 895 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 896 { 897 u_int8_t type; 898 u_int8_t len; 899 900 type = tuple[0]; 901 len = tuple[1] + 2; 902 903 (*func)(tuple, len, data); 904 905 if (type == PCMCIA_CISTPL_END) { 906 return (NULL); 907 } 908 909 return (tuple + len); 910 } 911 912 /* 913 * XXX: this is another reason why this code should be shared with PCI. 914 */ 915 int 916 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 917 int *oldstate) 918 { 919 cardbus_chipset_tag_t cc = ct->ct_cc; 920 cardbus_function_tag_t cf = ct->ct_cf; 921 922 int offset; 923 pcireg_t value, cap, now; 924 925 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 926 &value)) 927 return EOPNOTSUPP; 928 929 cap = value >> 16; 930 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 931 now = value & PCI_PMCSR_STATE_MASK; 932 value &= ~PCI_PMCSR_STATE_MASK; 933 if (oldstate) { 934 switch (now) { 935 case PCI_PMCSR_STATE_D0: 936 *oldstate = PCI_PWR_D0; 937 break; 938 case PCI_PMCSR_STATE_D1: 939 *oldstate = PCI_PWR_D1; 940 break; 941 case PCI_PMCSR_STATE_D2: 942 *oldstate = PCI_PWR_D2; 943 break; 944 case PCI_PMCSR_STATE_D3: 945 *oldstate = PCI_PWR_D3; 946 break; 947 default: 948 return EINVAL; 949 } 950 } 951 if (newstate == NULL) 952 return 0; 953 switch (*newstate) { 954 case PCI_PWR_D0: 955 if (now == PCI_PMCSR_STATE_D0) 956 return 0; 957 value |= PCI_PMCSR_STATE_D0; 958 break; 959 case PCI_PWR_D1: 960 if (now == PCI_PMCSR_STATE_D1) 961 return 0; 962 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 963 return EINVAL; 964 if (!(cap & PCI_PMCR_D1SUPP)) 965 return EOPNOTSUPP; 966 value |= PCI_PMCSR_STATE_D1; 967 break; 968 case PCI_PWR_D2: 969 if (now == PCI_PMCSR_STATE_D2) 970 return 0; 971 if (now == PCI_PMCSR_STATE_D3) 972 return EINVAL; 973 if (!(cap & PCI_PMCR_D2SUPP)) 974 return EOPNOTSUPP; 975 value |= PCI_PMCSR_STATE_D2; 976 break; 977 case PCI_PWR_D3: 978 if (now == PCI_PMCSR_STATE_D3) 979 return 0; 980 value |= PCI_PMCSR_STATE_D3; 981 break; 982 default: 983 return EINVAL; 984 } 985 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 986 DELAY(1000); 987 988 return 0; 989 } 990 991 int 992 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 993 int newpwr) 994 { 995 int oldpwr, error; 996 997 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 998 return error; 999 1000 if (oldpwr == newpwr) 1001 return 0; 1002 1003 if (oldpwr > newpwr) { 1004 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 1005 return 0; 1006 } 1007 1008 /* oldpwr < newpwr */ 1009 switch (oldpwr) { 1010 case PCI_PWR_D3: 1011 /* 1012 * XXX: This is because none of the devices do 1013 * the necessary song and dance for now to wakeup 1014 * Once this 1015 */ 1016 printf("%s: cannot wake up from power state D%d\n", 1017 dvname, oldpwr); 1018 return EINVAL; 1019 default: 1020 printf("%s: waking up from power state D%d\n", 1021 dvname, oldpwr); 1022 return 0; 1023 } 1024 } 1025 1026 1027 #ifdef CARDBUS_DEBUG 1028 static const char *tuple_name(int); 1029 static const char *tuple_names[] = { 1030 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 1031 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 1032 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 1033 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 1034 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 1035 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 1036 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 1037 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 1038 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 1039 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 1040 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 1041 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 1042 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 1043 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 1044 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 1045 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 1046 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 1047 "DATE", "BATTERY", "ORG" 1048 }; 1049 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 1050 1051 static const char * 1052 tuple_name(int type) 1053 { 1054 1055 if (0 <= type && type < NAME_LEN(tuple_names)) { 1056 return (tuple_names[type]); 1057 } else if (type == 0xff) { 1058 return ("END"); 1059 } else { 1060 return ("Reserved"); 1061 } 1062 } 1063 1064 static void 1065 print_tuple(u_int8_t *tuple, int len, void *data) 1066 { 1067 int i; 1068 1069 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1070 1071 for (i = 0; i < len; ++i) { 1072 if (i % 16 == 0) { 1073 printf(" 0x%2x:", i); 1074 } 1075 printf(" %x", tuple[i]); 1076 if (i % 16 == 15) { 1077 printf("\n"); 1078 } 1079 } 1080 if (i % 16 != 0) { 1081 printf("\n"); 1082 } 1083 } 1084 #endif 1085
Indexes created Mon Sep 29 21:09:56 GMT 2025