cardbus.c revision 1.52
1 /* $NetBSD: cardbus.c,v 1.52 2004/08/19 14:50:52 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 1.52 2004/08/19 14:50:52 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 sc->sc_funcs = NULL; 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, CARDBUSCF_FUNCTION 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 static struct cardbus_devfunc * 411 cb_findfunc(struct cardbus_softc *sc, int func) 412 { 413 struct cardbus_devfunc *ct; 414 415 for (ct = sc->sc_funcs; ct; ct = ct->ct_next) 416 if (ct->ct_func == func) 417 return (ct); 418 419 return (NULL); 420 } 421 422 int 423 cardbus_rescan(struct device *self, const char *ifattr, const int *locators) 424 { 425 struct cardbus_softc *sc = (struct cardbus_softc *)self; 426 cardbus_chipset_tag_t cc; 427 cardbus_function_tag_t cf; 428 cardbustag_t tag; 429 cardbusreg_t id, class, cis_ptr; 430 cardbusreg_t bhlc; 431 u_int8_t tuple[2048]; 432 int cdstatus; 433 int function, nfunction; 434 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 435 struct device *csc; 436 int no_work_funcs = 0; 437 cardbus_devfunc_t ct; 438 439 cc = sc->sc_cc; 440 cf = sc->sc_cf; 441 442 /* inspect initial voltage */ 443 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 444 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 445 sc->sc_dev.dv_unit)); 446 return (0); 447 } 448 449 /* 450 * XXX use fake function 8 to keep power on during whole 451 * configuration. 452 */ 453 enable_function(sc, cdstatus, 8); 454 function = 0; 455 456 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 457 458 /* 459 * Wait until power comes up. Maxmum 500 ms. 460 */ 461 { 462 int i; 463 464 for (i = 0; i < 5; ++i) { 465 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 466 if (id != 0xffffffff && id != 0) { 467 break; 468 } 469 if (cold) { /* before kernel thread invoked */ 470 delay(100 * 1000); 471 } else { /* thread context */ 472 if (tsleep((void *)sc, PCATCH, "cardbus", 473 hz / 10) != EWOULDBLOCK) { 474 break; 475 } 476 } 477 } 478 if (i == 5) { 479 return (EIO); 480 } 481 } 482 483 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 484 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 485 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 486 487 for (function = 0; function < nfunction; function++) { 488 struct cardbus_attach_args ca; 489 int help[3]; 490 locdesc_t *ldesc = (void *)&help; /* XXX */ 491 492 if (cb_findfunc(sc, function)) 493 continue; 494 495 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 496 function); 497 498 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 499 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 500 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 501 502 /* Invalid vendor ID value? */ 503 if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID) { 504 continue; 505 } 506 507 DPRINTF(("cardbus_attach_card: " 508 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 509 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 510 511 enable_function(sc, cdstatus, function); 512 513 /* clean up every BAR */ 514 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 515 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 516 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 517 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 518 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 519 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 520 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 521 522 /* set initial latency and cacheline size */ 523 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 524 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 525 function, bhlc)); 526 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 527 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 528 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 529 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 530 531 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 532 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 533 DPRINTF(("0x%08x\n", bhlc)); 534 535 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 536 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 537 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 538 cardbus_conf_write(cc, cf, tag, 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 ct->ct_next = NULL; 557 *previous_next = ct; 558 559 memset(&ca, 0, sizeof(ca)); 560 561 ca.ca_ct = ct; 562 563 ca.ca_iot = sc->sc_iot; 564 ca.ca_memt = sc->sc_memt; 565 ca.ca_dmat = sc->sc_dmat; 566 567 #if rbus 568 ca.ca_rbus_iot = sc->sc_rbus_iot; 569 ca.ca_rbus_memt= sc->sc_rbus_memt; 570 #endif 571 572 ca.ca_tag = tag; 573 ca.ca_bus = sc->sc_bus; 574 ca.ca_device = sc->sc_device; /* always 0 */ 575 ca.ca_function = function; 576 ca.ca_id = id; 577 ca.ca_class = class; 578 579 ca.ca_intrline = sc->sc_intrline; 580 581 if (cis_ptr != 0) { 582 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 583 printf("cardbus_attach_card: failed to read CIS\n"); 584 } else { 585 #ifdef CARDBUS_DEBUG 586 decode_tuples(tuple, 2048, print_tuple, NULL); 587 #endif 588 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 589 } 590 } 591 592 ldesc->len = 2; 593 ldesc->locs[CARDBUSCF_DEV] = sc->sc_device; /* always 0 */ 594 ldesc->locs[CARDBUSCF_FUNCTION] = function; 595 596 if ((csc = config_found_sm_loc((void *)sc, "cardbus", ldesc, 597 &ca, cardbusprint, cardbussubmatch)) == NULL) { 598 /* do not match */ 599 disable_function(sc, function); 600 free(ct, M_DEVBUF); 601 *previous_next = NULL; 602 } else { 603 /* found */ 604 previous_next = &(ct->ct_next); 605 ct->ct_device = csc; 606 ++no_work_funcs; 607 } 608 } 609 /* 610 * XXX power down pseudo function 8 (this will power down the card 611 * if no functions were attached). 612 */ 613 disable_function(sc, 8); 614 615 return (0); 616 } 617 618 static int 619 cardbussubmatch(struct device *parent, struct cfdata *cf, 620 const locdesc_t *ldesc, void *aux) 621 { 622 623 /* ldesc->locs[CARDBUSCF_DEV] is always 0 */ 624 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 625 cf->cardbuscf_dev != ldesc->locs[CARDBUSCF_DEV]) { 626 return (0); 627 } 628 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 629 cf->cardbuscf_function != ldesc->locs[CARDBUSCF_FUNCTION]) { 630 return (0); 631 } 632 633 return (config_match(parent, cf, aux)); 634 } 635 636 static int 637 cardbusprint(void *aux, const char *pnp) 638 { 639 struct cardbus_attach_args *ca = aux; 640 char devinfo[256]; 641 int i; 642 643 if (pnp) { 644 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 645 sizeof(devinfo)); 646 for (i = 0; i < 4; i++) { 647 if (ca->ca_cis.cis1_info[i] == NULL) 648 break; 649 if (i) 650 aprint_normal(", "); 651 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 652 } 653 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 654 i ? " " : "", 655 ca->ca_cis.manufacturer, ca->ca_cis.product); 656 aprint_normal(" %s at %s", devinfo, pnp); 657 } 658 aprint_normal(" dev %d function %d", ca->ca_device, ca->ca_function); 659 660 return (UNCONF); 661 } 662 663 /* 664 * void cardbus_detach_card(struct cardbus_softc *sc) 665 * 666 * This function detaches the card on the slot: detach device data 667 * structure and turns off the power. 668 * 669 * This function must not be called under interrupt context. 670 */ 671 void 672 cardbus_detach_card(struct cardbus_softc *sc) 673 { 674 struct cardbus_devfunc *ct, *ct_next; 675 676 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 677 struct device *fndev = ct->ct_device; 678 ct_next = ct->ct_next; 679 680 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 681 fndev->dv_xname)); 682 /* call device detach function */ 683 684 if (0 != config_detach(fndev, 0)) { 685 printf("%s: cannot detach dev %s, function %d\n", 686 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 687 } 688 } 689 690 sc->sc_poweron_func = 0; 691 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 692 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 693 } 694 695 void 696 cardbus_childdetached(struct device *self, struct device *child) 697 { 698 struct cardbus_softc *sc = (struct cardbus_softc *)self; 699 struct cardbus_devfunc *ct, *ct_next, **prev_next; 700 701 prev_next = &(sc->sc_funcs); 702 703 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 704 ct_next = ct->ct_next; 705 706 if (ct->ct_device == child) { 707 KASSERT(child->dv_locators[CARDBUSCF_FUNCTION] 708 == ct->ct_func); 709 sc->sc_poweron_func &= ~(1 << ct->ct_func); 710 *prev_next = ct->ct_next; 711 free(ct, M_DEVBUF); 712 return; 713 } 714 715 prev_next = &(ct->ct_next); 716 } 717 718 printf("%s: cardbus_childdetached: %s not found\n", 719 self->dv_xname, child->dv_xname); 720 } 721 722 /* 723 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 724 * Interrupt handler of pccard. 725 * args: 726 * cardbus_chipset_tag_t *cc 727 * int irq: 728 */ 729 void * 730 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 731 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 732 { 733 734 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 735 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 736 } 737 738 /* 739 * void cardbus_intr_disestablish(cc, cf, handler) 740 * Interrupt handler of pccard. 741 * args: 742 * cardbus_chipset_tag_t *cc 743 */ 744 void 745 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 746 void *handler) 747 { 748 749 DPRINTF(("- pccard_intr_disestablish\n")); 750 (*cf->cardbus_intr_disestablish)(cc, handler); 751 } 752 753 /* 754 * XXX this should be merged with cardbus_function_{enable,disable}, 755 * but we don't have a ct when these functions are called. 756 */ 757 static void 758 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 759 { 760 761 if (sc->sc_poweron_func == 0) { 762 /* switch to 3V and/or wait for power to stabilize */ 763 if (cdstatus & CARDBUS_3V_CARD) { 764 /* 765 * sc_poweron_func must be substituted before 766 * entering sleep, in order to avoid turn on 767 * power twice. 768 */ 769 sc->sc_poweron_func |= (1 << function); 770 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 771 } else { 772 /* No cards other than 3.3V cards. */ 773 return; 774 } 775 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 776 } 777 sc->sc_poweron_func |= (1 << function); 778 } 779 780 static void 781 disable_function(struct cardbus_softc *sc, int function) 782 { 783 784 sc->sc_poweron_func &= ~(1 << function); 785 if (sc->sc_poweron_func == 0) { 786 /* power-off because no functions are enabled */ 787 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 788 } 789 } 790 791 /* 792 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 793 * 794 * This function enables a function on a card. When no power is 795 * applied on the card, power will be applied on it. 796 */ 797 int 798 cardbus_function_enable(struct cardbus_softc *sc, int func) 799 { 800 cardbus_chipset_tag_t cc = sc->sc_cc; 801 cardbus_function_tag_t cf = sc->sc_cf; 802 cardbusreg_t command; 803 cardbustag_t tag; 804 805 DPRINTF(("entering cardbus_function_enable... ")); 806 807 /* entering critical area */ 808 809 /* XXX: sc_vold should be used */ 810 enable_function(sc, CARDBUS_3V_CARD, func); 811 812 /* exiting critical area */ 813 814 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 815 816 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 817 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 818 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 819 820 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 821 822 cardbus_free_tag(cc, cf, tag); 823 824 DPRINTF(("%x\n", sc->sc_poweron_func)); 825 826 return (0); 827 } 828 829 /* 830 * int cardbus_function_disable(struct cardbus_softc *, int func) 831 * 832 * This function disable a function on a card. When no functions are 833 * enabled, it turns off the power. 834 */ 835 int 836 cardbus_function_disable(struct cardbus_softc *sc, int func) 837 { 838 839 DPRINTF(("entering cardbus_function_disable... ")); 840 841 disable_function(sc, func); 842 843 return (0); 844 } 845 846 /* 847 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 848 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 849 * cardbusreg_t *value) 850 * 851 * Find the specified PCI capability. 852 */ 853 int 854 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 855 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 856 { 857 cardbusreg_t reg; 858 unsigned int ofs; 859 860 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 861 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 862 return (0); 863 864 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 865 PCI_CAPLISTPTR_REG)); 866 while (ofs != 0) { 867 #ifdef DIAGNOSTIC 868 if ((ofs & 3) || (ofs < 0x40)) 869 panic("cardbus_get_capability"); 870 #endif 871 reg = cardbus_conf_read(cc, cf, tag, ofs); 872 if (PCI_CAPLIST_CAP(reg) == capid) { 873 if (offset) 874 *offset = ofs; 875 if (value) 876 *value = reg; 877 return (1); 878 } 879 ofs = PCI_CAPLIST_NEXT(reg); 880 } 881 882 return (0); 883 } 884 885 /* 886 * below this line, there are some functions for decoding tuples. 887 * They should go out from this file. 888 */ 889 890 static u_int8_t * 891 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 892 893 static int 894 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 895 { 896 u_int8_t *tp = tuple; 897 898 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 899 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 900 return (0); 901 } 902 903 while (NULL != (tp = decode_tuple(tp, func, data))) { 904 if (tuple + buflen < tp) { 905 break; 906 } 907 } 908 909 return (1); 910 } 911 912 static u_int8_t * 913 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 914 { 915 u_int8_t type; 916 u_int8_t len; 917 918 type = tuple[0]; 919 len = tuple[1] + 2; 920 921 (*func)(tuple, len, data); 922 923 if (type == PCMCIA_CISTPL_END) { 924 return (NULL); 925 } 926 927 return (tuple + len); 928 } 929 930 /* 931 * XXX: this is another reason why this code should be shared with PCI. 932 */ 933 int 934 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 935 int *oldstate) 936 { 937 cardbus_chipset_tag_t cc = ct->ct_cc; 938 cardbus_function_tag_t cf = ct->ct_cf; 939 940 int offset; 941 pcireg_t value, cap, now; 942 943 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 944 &value)) 945 return EOPNOTSUPP; 946 947 cap = value >> 16; 948 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 949 now = value & PCI_PMCSR_STATE_MASK; 950 value &= ~PCI_PMCSR_STATE_MASK; 951 if (oldstate) { 952 switch (now) { 953 case PCI_PMCSR_STATE_D0: 954 *oldstate = PCI_PWR_D0; 955 break; 956 case PCI_PMCSR_STATE_D1: 957 *oldstate = PCI_PWR_D1; 958 break; 959 case PCI_PMCSR_STATE_D2: 960 *oldstate = PCI_PWR_D2; 961 break; 962 case PCI_PMCSR_STATE_D3: 963 *oldstate = PCI_PWR_D3; 964 break; 965 default: 966 return EINVAL; 967 } 968 } 969 if (newstate == NULL) 970 return 0; 971 switch (*newstate) { 972 case PCI_PWR_D0: 973 if (now == PCI_PMCSR_STATE_D0) 974 return 0; 975 value |= PCI_PMCSR_STATE_D0; 976 break; 977 case PCI_PWR_D1: 978 if (now == PCI_PMCSR_STATE_D1) 979 return 0; 980 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 981 return EINVAL; 982 if (!(cap & PCI_PMCR_D1SUPP)) 983 return EOPNOTSUPP; 984 value |= PCI_PMCSR_STATE_D1; 985 break; 986 case PCI_PWR_D2: 987 if (now == PCI_PMCSR_STATE_D2) 988 return 0; 989 if (now == PCI_PMCSR_STATE_D3) 990 return EINVAL; 991 if (!(cap & PCI_PMCR_D2SUPP)) 992 return EOPNOTSUPP; 993 value |= PCI_PMCSR_STATE_D2; 994 break; 995 case PCI_PWR_D3: 996 if (now == PCI_PMCSR_STATE_D3) 997 return 0; 998 value |= PCI_PMCSR_STATE_D3; 999 break; 1000 default: 1001 return EINVAL; 1002 } 1003 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 1004 DELAY(1000); 1005 1006 return 0; 1007 } 1008 1009 int 1010 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 1011 int newpwr) 1012 { 1013 int oldpwr, error; 1014 1015 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 1016 return error; 1017 1018 if (oldpwr == newpwr) 1019 return 0; 1020 1021 if (oldpwr > newpwr) { 1022 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 1023 return 0; 1024 } 1025 1026 /* oldpwr < newpwr */ 1027 switch (oldpwr) { 1028 case PCI_PWR_D3: 1029 /* 1030 * XXX: This is because none of the devices do 1031 * the necessary song and dance for now to wakeup 1032 * Once this 1033 */ 1034 printf("%s: cannot wake up from power state D%d\n", 1035 dvname, oldpwr); 1036 return EINVAL; 1037 default: 1038 printf("%s: waking up from power state D%d\n", 1039 dvname, oldpwr); 1040 return 0; 1041 } 1042 } 1043 1044 1045 #ifdef CARDBUS_DEBUG 1046 static const char *tuple_name(int); 1047 static const char *tuple_names[] = { 1048 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 1049 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 1050 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 1051 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 1052 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 1053 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 1054 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 1055 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 1056 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 1057 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 1058 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 1059 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 1060 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 1061 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 1062 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 1063 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 1064 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 1065 "DATE", "BATTERY", "ORG" 1066 }; 1067 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 1068 1069 static const char * 1070 tuple_name(int type) 1071 { 1072 1073 if (0 <= type && type < NAME_LEN(tuple_names)) { 1074 return (tuple_names[type]); 1075 } else if (type == 0xff) { 1076 return ("END"); 1077 } else { 1078 return ("Reserved"); 1079 } 1080 } 1081 1082 static void 1083 print_tuple(u_int8_t *tuple, int len, void *data) 1084 { 1085 int i; 1086 1087 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1088 1089 for (i = 0; i < len; ++i) { 1090 if (i % 16 == 0) { 1091 printf(" 0x%2x:", i); 1092 } 1093 printf(" %x", tuple[i]); 1094 if (i % 16 == 15) { 1095 printf("\n"); 1096 } 1097 } 1098 if (i % 16 != 0) { 1099 printf("\n"); 1100 } 1101 } 1102 #endif 1103
Indexes created Mon Sep 29 21:09:56 GMT 2025