cardbus.c revision 1.54
1 /* $NetBSD: cardbus.c,v 1.54 2004/08/23 17:52:45 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 1.54 2004/08/23 17:52:45 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 #if defined CARDBUS_DEBUG 62 #define STATIC 63 #define DPRINTF(a) printf a 64 #else 65 #define STATIC static 66 #define DPRINTF(a) 67 #endif 68 69 70 STATIC void cardbusattach(struct device *, struct device *, void *); 71 STATIC int cardbusmatch(struct device *, struct cfdata *, void *); 72 int cardbus_rescan(struct device *, const char *, const int *); 73 void cardbus_childdetached(struct device *, struct device *); 74 static int cardbussubmatch(struct device *, struct cfdata *, 75 const locdesc_t *, void *); 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_device = 0; 124 sc->sc_intrline = cba->cba_intrline; 125 sc->sc_cacheline = cba->cba_cacheline; 126 sc->sc_lattimer = cba->cba_lattimer; 127 128 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 129 if (bootverbose) 130 printf(" cacheline 0x%x, lattimer 0x%x", sc->sc_cacheline, 131 sc->sc_lattimer); 132 printf("\n"); 133 134 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 135 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 136 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 137 sc->sc_cc = cba->cba_cc; 138 sc->sc_cf = cba->cba_cf; 139 140 #if rbus 141 sc->sc_rbus_iot = cba->cba_rbus_iot; 142 sc->sc_rbus_memt = cba->cba_rbus_memt; 143 #endif 144 } 145 146 static int 147 cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr, 148 u_int8_t *tuples, size_t len) 149 { 150 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 151 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 152 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 153 cardbustag_t tag = ca->ca_tag; 154 cardbusreg_t command; 155 bus_space_tag_t bar_tag; 156 bus_space_handle_t bar_memh; 157 bus_size_t bar_size; 158 bus_addr_t bar_addr; 159 cardbusreg_t reg; 160 int found = 0; 161 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 162 int i, j; 163 164 memset(tuples, 0, len); 165 166 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 167 168 switch (cardbus_space) { 169 case CARDBUS_CIS_ASI_TUPLE: 170 DPRINTF(("%s: reading CIS data from configuration space\n", 171 sc->sc_dev.dv_xname)); 172 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 173 u_int32_t e = (*cf->cardbus_conf_read)(cc, tag, i); 174 tuples[j] = 0xff & e; 175 e >>= 8; 176 tuples[j + 1] = 0xff & e; 177 e >>= 8; 178 tuples[j + 2] = 0xff & e; 179 e >>= 8; 180 tuples[j + 3] = 0xff & e; 181 j += 4; 182 } 183 found++; 184 break; 185 186 case CARDBUS_CIS_ASI_BAR0: 187 case CARDBUS_CIS_ASI_BAR1: 188 case CARDBUS_CIS_ASI_BAR2: 189 case CARDBUS_CIS_ASI_BAR3: 190 case CARDBUS_CIS_ASI_BAR4: 191 case CARDBUS_CIS_ASI_BAR5: 192 case CARDBUS_CIS_ASI_ROM: 193 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 194 reg = CARDBUS_ROM_REG; 195 DPRINTF(("%s: reading CIS data from ROM\n", 196 sc->sc_dev.dv_xname)); 197 } else { 198 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 199 DPRINTF(("%s: reading CIS data from BAR%d\n", 200 sc->sc_dev.dv_xname, cardbus_space - 1)); 201 } 202 203 /* 204 * XXX zero register so mapreg_map doesn't get confused by old 205 * contents. 206 */ 207 cardbus_conf_write(cc, cf, tag, reg, 0); 208 if (Cardbus_mapreg_map(ca->ca_ct, reg, 209 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 210 0, &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 211 printf("%s: failed to map memory\n", 212 sc->sc_dev.dv_xname); 213 return (1); 214 } 215 216 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 217 cardbusreg_t exrom; 218 int save; 219 struct cardbus_rom_image_head rom_image; 220 struct cardbus_rom_image *p; 221 222 save = splhigh(); 223 /* enable rom address decoder */ 224 exrom = cardbus_conf_read(cc, cf, tag, reg); 225 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 226 227 command = cardbus_conf_read(cc, cf, tag, 228 CARDBUS_COMMAND_STATUS_REG); 229 cardbus_conf_write(cc, cf, tag, 230 CARDBUS_COMMAND_STATUS_REG, 231 command | CARDBUS_COMMAND_MEM_ENABLE); 232 233 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 234 &rom_image)) 235 goto out; 236 237 SIMPLEQ_FOREACH(p, &rom_image, 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, 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 struct cardbus_cis_info *cis = data; 289 char *p; 290 int i, bar_index; 291 292 switch (tuple[0]) { 293 case PCMCIA_CISTPL_MANFID: 294 if (tuple[1] != 5) { 295 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 296 __func__, tuple[1])); 297 break; 298 } 299 cis->manufacturer = tuple[2] | (tuple[3] << 8); 300 cis->product = tuple[4] | (tuple[5] << 8); 301 break; 302 303 case PCMCIA_CISTPL_VERS_1: 304 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 305 i = 0; 306 p = cis->cis1_info_buf + 2; 307 while (i < 308 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 309 cis->cis1_info[i++] = p; 310 while (*p != '\0' && *p != '\xff') 311 p++; 312 if (*p == '\xff') 313 break; 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[] = { 389 CARDBUSCF_DEV_DEFAULT, 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 /* XXX what a nonsense */ 427 if ((locators[CARDBUSCF_DEV] != CARDBUSCF_DEV_DEFAULT) && 428 (locators[CARDBUSCF_DEV] != sc->sc_device)) 429 return (0); 430 431 /* inspect initial voltage */ 432 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 433 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 434 sc->sc_dev.dv_unit)); 435 return (0); 436 } 437 438 /* 439 * XXX use fake function 8 to keep power on during whole 440 * configuration. 441 */ 442 enable_function(sc, cdstatus, 8); 443 function = 0; 444 445 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 446 447 /* 448 * Wait until power comes up. Maxmum 500 ms. 449 */ 450 { 451 int i; 452 453 for (i = 0; i < 5; ++i) { 454 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 455 if (id != 0xffffffff && id != 0) { 456 break; 457 } 458 if (cold) { /* before kernel thread invoked */ 459 delay(100 * 1000); 460 } else { /* thread context */ 461 if (tsleep((void *)sc, PCATCH, "cardbus", 462 hz / 10) != EWOULDBLOCK) { 463 break; 464 } 465 } 466 } 467 if (i == 5) { 468 return (EIO); 469 } 470 } 471 472 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 473 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 474 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 475 476 for (function = 0; function < nfunction; function++) { 477 struct cardbus_attach_args ca; 478 int help[3]; 479 locdesc_t *ldesc = (void *)&help; /* XXX */ 480 481 if ((locators[CARDBUSCF_FUNCTION] != CARDBUSCF_FUNCTION_DEFAULT) 482 && (locators[CARDBUSCF_FUNCTION] != function)) 483 continue; 484 485 if (sc->sc_funcs[function]) 486 continue; 487 488 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 489 function); 490 491 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 492 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 493 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 494 495 /* Invalid vendor ID value? */ 496 if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID) { 497 continue; 498 } 499 500 DPRINTF(("cardbus_attach_card: " 501 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 502 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 503 504 enable_function(sc, cdstatus, function); 505 506 /* clean up every BAR */ 507 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 508 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 509 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 510 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 511 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 512 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 513 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 514 515 /* set initial latency and cacheline size */ 516 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 517 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 518 function, bhlc)); 519 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 520 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 521 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 522 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 523 524 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 525 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 526 DPRINTF(("0x%08x\n", bhlc)); 527 528 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 529 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 530 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 531 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 532 } 533 534 /* 535 * We need to allocate the ct here, since we might 536 * need it when reading the CIS 537 */ 538 if ((ct = malloc(sizeof(struct cardbus_devfunc), 539 M_DEVBUF, M_NOWAIT)) == NULL) { 540 panic("no room for cardbus_tag"); 541 } 542 543 ct->ct_cc = sc->sc_cc; 544 ct->ct_cf = sc->sc_cf; 545 ct->ct_bus = sc->sc_bus; 546 ct->ct_dev = sc->sc_device; 547 ct->ct_func = function; 548 ct->ct_sc = sc; 549 sc->sc_funcs[function] = ct; 550 551 memset(&ca, 0, sizeof(ca)); 552 553 ca.ca_ct = ct; 554 555 ca.ca_iot = sc->sc_iot; 556 ca.ca_memt = sc->sc_memt; 557 ca.ca_dmat = sc->sc_dmat; 558 559 #if rbus 560 ca.ca_rbus_iot = sc->sc_rbus_iot; 561 ca.ca_rbus_memt= sc->sc_rbus_memt; 562 #endif 563 564 ca.ca_tag = tag; 565 ca.ca_bus = sc->sc_bus; 566 ca.ca_device = sc->sc_device; /* always 0 */ 567 ca.ca_function = function; 568 ca.ca_id = id; 569 ca.ca_class = class; 570 571 ca.ca_intrline = sc->sc_intrline; 572 573 if (cis_ptr != 0) { 574 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 575 printf("cardbus_attach_card: failed to read CIS\n"); 576 } else { 577 #ifdef CARDBUS_DEBUG 578 decode_tuples(tuple, 2048, print_tuple, NULL); 579 #endif 580 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 581 } 582 } 583 584 ldesc->len = 2; 585 ldesc->locs[CARDBUSCF_DEV] = sc->sc_device; /* always 0 */ 586 ldesc->locs[CARDBUSCF_FUNCTION] = function; 587 588 if ((csc = config_found_sm_loc((void *)sc, "cardbus", ldesc, 589 &ca, cardbusprint, cardbussubmatch)) == NULL) { 590 /* do not match */ 591 disable_function(sc, function); 592 sc->sc_funcs[function] = NULL; 593 free(ct, M_DEVBUF); 594 } else { 595 /* found */ 596 ct->ct_device = csc; 597 } 598 } 599 /* 600 * XXX power down pseudo function 8 (this will power down the card 601 * if no functions were attached). 602 */ 603 disable_function(sc, 8); 604 605 return (0); 606 } 607 608 static int 609 cardbussubmatch(struct device *parent, struct cfdata *cf, 610 const locdesc_t *ldesc, void *aux) 611 { 612 613 /* ldesc->locs[CARDBUSCF_DEV] is always 0 */ 614 if (cf->cf_loc[CARDBUSCF_DEV] != CARDBUSCF_DEV_DEFAULT && 615 cf->cf_loc[CARDBUSCF_DEV] != ldesc->locs[CARDBUSCF_DEV]) { 616 return (0); 617 } 618 if (cf->cf_loc[CARDBUSCF_FUNCTION] != CARDBUSCF_FUNCTION_DEFAULT && 619 cf->cf_loc[CARDBUSCF_FUNCTION] != ldesc->locs[CARDBUSCF_FUNCTION]) { 620 return (0); 621 } 622 623 return (config_match(parent, cf, aux)); 624 } 625 626 static int 627 cardbusprint(void *aux, const char *pnp) 628 { 629 struct cardbus_attach_args *ca = aux; 630 char devinfo[256]; 631 int i; 632 633 if (pnp) { 634 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 635 sizeof(devinfo)); 636 for (i = 0; i < 4; i++) { 637 if (ca->ca_cis.cis1_info[i] == NULL) 638 break; 639 if (i) 640 aprint_normal(", "); 641 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 642 } 643 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 644 i ? " " : "", 645 ca->ca_cis.manufacturer, ca->ca_cis.product); 646 aprint_normal(" %s at %s", devinfo, pnp); 647 } 648 aprint_normal(" dev %d function %d", ca->ca_device, ca->ca_function); 649 650 return (UNCONF); 651 } 652 653 /* 654 * void cardbus_detach_card(struct cardbus_softc *sc) 655 * 656 * This function detaches the card on the slot: detach device data 657 * structure and turns off the power. 658 * 659 * This function must not be called under interrupt context. 660 */ 661 void 662 cardbus_detach_card(struct cardbus_softc *sc) 663 { 664 int f; 665 struct cardbus_devfunc *ct; 666 667 for (f = 0; f < 8; f++) { 668 ct = sc->sc_funcs[f]; 669 if (!ct) 670 continue; 671 672 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 673 ct->ct_device->dv_xname)); 674 /* call device detach function */ 675 676 if (0 != config_detach(ct->ct_device, 0)) { 677 printf("%s: cannot detach dev %s, function %d\n", 678 sc->sc_dev.dv_xname, ct->ct_device->dv_xname, 679 ct->ct_func); 680 } 681 } 682 683 sc->sc_poweron_func = 0; 684 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 685 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 686 } 687 688 void 689 cardbus_childdetached(struct device *self, struct device *child) 690 { 691 struct cardbus_softc *sc = (struct cardbus_softc *)self; 692 struct cardbus_devfunc *ct; 693 694 ct = sc->sc_funcs[child->dv_locators[CARDBUSCF_FUNCTION]]; 695 KASSERT(ct->ct_device == child); 696 697 sc->sc_poweron_func &= ~(1 << ct->ct_func); 698 sc->sc_funcs[ct->ct_func] = NULL; 699 free(ct, M_DEVBUF); 700 } 701 702 /* 703 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 704 * Interrupt handler of pccard. 705 * args: 706 * cardbus_chipset_tag_t *cc 707 * int irq: 708 */ 709 void * 710 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 711 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 712 { 713 714 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 715 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 716 } 717 718 /* 719 * void cardbus_intr_disestablish(cc, cf, handler) 720 * Interrupt handler of pccard. 721 * args: 722 * cardbus_chipset_tag_t *cc 723 */ 724 void 725 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 726 void *handler) 727 { 728 729 DPRINTF(("- pccard_intr_disestablish\n")); 730 (*cf->cardbus_intr_disestablish)(cc, handler); 731 } 732 733 /* 734 * XXX this should be merged with cardbus_function_{enable,disable}, 735 * but we don't have a ct when these functions are called. 736 */ 737 static void 738 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 739 { 740 741 if (sc->sc_poweron_func == 0) { 742 /* switch to 3V and/or wait for power to stabilize */ 743 if (cdstatus & CARDBUS_3V_CARD) { 744 /* 745 * sc_poweron_func must be substituted before 746 * entering sleep, in order to avoid turn on 747 * power twice. 748 */ 749 sc->sc_poweron_func |= (1 << function); 750 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 751 } else { 752 /* No cards other than 3.3V cards. */ 753 return; 754 } 755 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 756 } 757 sc->sc_poweron_func |= (1 << function); 758 } 759 760 static void 761 disable_function(struct cardbus_softc *sc, int function) 762 { 763 764 sc->sc_poweron_func &= ~(1 << function); 765 if (sc->sc_poweron_func == 0) { 766 /* power-off because no functions are enabled */ 767 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 768 } 769 } 770 771 /* 772 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 773 * 774 * This function enables a function on a card. When no power is 775 * applied on the card, power will be applied on it. 776 */ 777 int 778 cardbus_function_enable(struct cardbus_softc *sc, int func) 779 { 780 cardbus_chipset_tag_t cc = sc->sc_cc; 781 cardbus_function_tag_t cf = sc->sc_cf; 782 cardbusreg_t command; 783 cardbustag_t tag; 784 785 DPRINTF(("entering cardbus_function_enable... ")); 786 787 /* entering critical area */ 788 789 /* XXX: sc_vold should be used */ 790 enable_function(sc, CARDBUS_3V_CARD, func); 791 792 /* exiting critical area */ 793 794 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 795 796 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 797 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 798 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 799 800 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 801 802 cardbus_free_tag(cc, cf, tag); 803 804 DPRINTF(("%x\n", sc->sc_poweron_func)); 805 806 return (0); 807 } 808 809 /* 810 * int cardbus_function_disable(struct cardbus_softc *, int func) 811 * 812 * This function disable a function on a card. When no functions are 813 * enabled, it turns off the power. 814 */ 815 int 816 cardbus_function_disable(struct cardbus_softc *sc, int func) 817 { 818 819 DPRINTF(("entering cardbus_function_disable... ")); 820 821 disable_function(sc, func); 822 823 return (0); 824 } 825 826 /* 827 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 828 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 829 * cardbusreg_t *value) 830 * 831 * Find the specified PCI capability. 832 */ 833 int 834 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 835 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 836 { 837 cardbusreg_t reg; 838 unsigned int ofs; 839 840 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 841 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 842 return (0); 843 844 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 845 PCI_CAPLISTPTR_REG)); 846 while (ofs != 0) { 847 #ifdef DIAGNOSTIC 848 if ((ofs & 3) || (ofs < 0x40)) 849 panic("cardbus_get_capability"); 850 #endif 851 reg = cardbus_conf_read(cc, cf, tag, ofs); 852 if (PCI_CAPLIST_CAP(reg) == capid) { 853 if (offset) 854 *offset = ofs; 855 if (value) 856 *value = reg; 857 return (1); 858 } 859 ofs = PCI_CAPLIST_NEXT(reg); 860 } 861 862 return (0); 863 } 864 865 /* 866 * below this line, there are some functions for decoding tuples. 867 * They should go out from this file. 868 */ 869 870 static u_int8_t * 871 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 872 873 static int 874 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 875 { 876 u_int8_t *tp = tuple; 877 878 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 879 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 880 return (0); 881 } 882 883 while (NULL != (tp = decode_tuple(tp, func, data))) { 884 if (tuple + buflen < tp) { 885 break; 886 } 887 } 888 889 return (1); 890 } 891 892 static u_int8_t * 893 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 894 { 895 u_int8_t type; 896 u_int8_t len; 897 898 type = tuple[0]; 899 len = tuple[1] + 2; 900 901 (*func)(tuple, len, data); 902 903 if (type == PCMCIA_CISTPL_END) { 904 return (NULL); 905 } 906 907 return (tuple + len); 908 } 909 910 /* 911 * XXX: this is another reason why this code should be shared with PCI. 912 */ 913 int 914 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 915 int *oldstate) 916 { 917 cardbus_chipset_tag_t cc = ct->ct_cc; 918 cardbus_function_tag_t cf = ct->ct_cf; 919 920 int offset; 921 pcireg_t value, cap, now; 922 923 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 924 &value)) 925 return EOPNOTSUPP; 926 927 cap = value >> 16; 928 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 929 now = value & PCI_PMCSR_STATE_MASK; 930 value &= ~PCI_PMCSR_STATE_MASK; 931 if (oldstate) { 932 switch (now) { 933 case PCI_PMCSR_STATE_D0: 934 *oldstate = PCI_PWR_D0; 935 break; 936 case PCI_PMCSR_STATE_D1: 937 *oldstate = PCI_PWR_D1; 938 break; 939 case PCI_PMCSR_STATE_D2: 940 *oldstate = PCI_PWR_D2; 941 break; 942 case PCI_PMCSR_STATE_D3: 943 *oldstate = PCI_PWR_D3; 944 break; 945 default: 946 return EINVAL; 947 } 948 } 949 if (newstate == NULL) 950 return 0; 951 switch (*newstate) { 952 case PCI_PWR_D0: 953 if (now == PCI_PMCSR_STATE_D0) 954 return 0; 955 value |= PCI_PMCSR_STATE_D0; 956 break; 957 case PCI_PWR_D1: 958 if (now == PCI_PMCSR_STATE_D1) 959 return 0; 960 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 961 return EINVAL; 962 if (!(cap & PCI_PMCR_D1SUPP)) 963 return EOPNOTSUPP; 964 value |= PCI_PMCSR_STATE_D1; 965 break; 966 case PCI_PWR_D2: 967 if (now == PCI_PMCSR_STATE_D2) 968 return 0; 969 if (now == PCI_PMCSR_STATE_D3) 970 return EINVAL; 971 if (!(cap & PCI_PMCR_D2SUPP)) 972 return EOPNOTSUPP; 973 value |= PCI_PMCSR_STATE_D2; 974 break; 975 case PCI_PWR_D3: 976 if (now == PCI_PMCSR_STATE_D3) 977 return 0; 978 value |= PCI_PMCSR_STATE_D3; 979 break; 980 default: 981 return EINVAL; 982 } 983 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 984 DELAY(1000); 985 986 return 0; 987 } 988 989 int 990 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 991 int newpwr) 992 { 993 int oldpwr, error; 994 995 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 996 return error; 997 998 if (oldpwr == newpwr) 999 return 0; 1000 1001 if (oldpwr > newpwr) { 1002 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 1003 return 0; 1004 } 1005 1006 /* oldpwr < newpwr */ 1007 switch (oldpwr) { 1008 case PCI_PWR_D3: 1009 /* 1010 * XXX: This is because none of the devices do 1011 * the necessary song and dance for now to wakeup 1012 * Once this 1013 */ 1014 printf("%s: cannot wake up from power state D%d\n", 1015 dvname, oldpwr); 1016 return EINVAL; 1017 default: 1018 printf("%s: waking up from power state D%d\n", 1019 dvname, oldpwr); 1020 return 0; 1021 } 1022 } 1023 1024 1025 #ifdef CARDBUS_DEBUG 1026 static const char *tuple_name(int); 1027 static const char *tuple_names[] = { 1028 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 1029 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 1030 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 1031 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 1032 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 1033 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 1034 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 1035 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 1036 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 1037 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 1038 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 1039 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 1040 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 1041 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 1042 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 1043 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 1044 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 1045 "DATE", "BATTERY", "ORG" 1046 }; 1047 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 1048 1049 static const char * 1050 tuple_name(int type) 1051 { 1052 1053 if (0 <= type && type < NAME_LEN(tuple_names)) { 1054 return (tuple_names[type]); 1055 } else if (type == 0xff) { 1056 return ("END"); 1057 } else { 1058 return ("Reserved"); 1059 } 1060 } 1061 1062 static void 1063 print_tuple(u_int8_t *tuple, int len, void *data) 1064 { 1065 int i; 1066 1067 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1068 1069 for (i = 0; i < len; ++i) { 1070 if (i % 16 == 0) { 1071 printf(" 0x%2x:", i); 1072 } 1073 printf(" %x", tuple[i]); 1074 if (i % 16 == 15) { 1075 printf("\n"); 1076 } 1077 } 1078 if (i % 16 != 0) { 1079 printf("\n"); 1080 } 1081 } 1082 #endif 1083
Indexes created Tue Sep 30 11:09:46 GMT 2025