cardbus.c revision 1.53
1 /* $NetBSD: cardbus.c,v 1.53 2004/08/23 16:41:48 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 1.53 2004/08/23 16:41:48 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_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 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 /* XXX what a nonsense */ 443 if ((locators[CARDBUSCF_DEV] != CARDBUSCF_DEV_DEFAULT) && 444 (locators[CARDBUSCF_DEV] != sc->sc_device)) 445 return (0); 446 447 /* inspect initial voltage */ 448 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 449 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 450 sc->sc_dev.dv_unit)); 451 return (0); 452 } 453 454 /* 455 * XXX use fake function 8 to keep power on during whole 456 * configuration. 457 */ 458 enable_function(sc, cdstatus, 8); 459 function = 0; 460 461 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 462 463 /* 464 * Wait until power comes up. Maxmum 500 ms. 465 */ 466 { 467 int i; 468 469 for (i = 0; i < 5; ++i) { 470 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 471 if (id != 0xffffffff && id != 0) { 472 break; 473 } 474 if (cold) { /* before kernel thread invoked */ 475 delay(100 * 1000); 476 } else { /* thread context */ 477 if (tsleep((void *)sc, PCATCH, "cardbus", 478 hz / 10) != EWOULDBLOCK) { 479 break; 480 } 481 } 482 } 483 if (i == 5) { 484 return (EIO); 485 } 486 } 487 488 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 489 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 490 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 491 492 for (function = 0; function < nfunction; function++) { 493 struct cardbus_attach_args ca; 494 int help[3]; 495 locdesc_t *ldesc = (void *)&help; /* XXX */ 496 497 if ((locators[CARDBUSCF_FUNCTION] != CARDBUSCF_FUNCTION_DEFAULT) 498 && (locators[CARDBUSCF_FUNCTION] != function)) 499 continue; 500 501 if (cb_findfunc(sc, function)) 502 continue; 503 504 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 505 function); 506 507 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 508 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 509 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 510 511 /* Invalid vendor ID value? */ 512 if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID) { 513 continue; 514 } 515 516 DPRINTF(("cardbus_attach_card: " 517 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 518 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 519 520 enable_function(sc, cdstatus, function); 521 522 /* clean up every BAR */ 523 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 524 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 525 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 526 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 527 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 528 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 529 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 530 531 /* set initial latency and cacheline size */ 532 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 533 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 534 function, bhlc)); 535 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 536 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 537 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 538 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 539 540 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 541 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 542 DPRINTF(("0x%08x\n", bhlc)); 543 544 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 545 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 546 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 547 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 548 } 549 550 /* 551 * We need to allocate the ct here, since we might 552 * need it when reading the CIS 553 */ 554 if ((ct = malloc(sizeof(struct cardbus_devfunc), 555 M_DEVBUF, M_NOWAIT)) == NULL) { 556 panic("no room for cardbus_tag"); 557 } 558 559 ct->ct_cc = sc->sc_cc; 560 ct->ct_cf = sc->sc_cf; 561 ct->ct_bus = sc->sc_bus; 562 ct->ct_dev = sc->sc_device; 563 ct->ct_func = function; 564 ct->ct_sc = sc; 565 ct->ct_next = NULL; 566 *previous_next = ct; 567 568 memset(&ca, 0, sizeof(ca)); 569 570 ca.ca_ct = ct; 571 572 ca.ca_iot = sc->sc_iot; 573 ca.ca_memt = sc->sc_memt; 574 ca.ca_dmat = sc->sc_dmat; 575 576 #if rbus 577 ca.ca_rbus_iot = sc->sc_rbus_iot; 578 ca.ca_rbus_memt= sc->sc_rbus_memt; 579 #endif 580 581 ca.ca_tag = tag; 582 ca.ca_bus = sc->sc_bus; 583 ca.ca_device = sc->sc_device; /* always 0 */ 584 ca.ca_function = function; 585 ca.ca_id = id; 586 ca.ca_class = class; 587 588 ca.ca_intrline = sc->sc_intrline; 589 590 if (cis_ptr != 0) { 591 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 592 printf("cardbus_attach_card: failed to read CIS\n"); 593 } else { 594 #ifdef CARDBUS_DEBUG 595 decode_tuples(tuple, 2048, print_tuple, NULL); 596 #endif 597 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 598 } 599 } 600 601 ldesc->len = 2; 602 ldesc->locs[CARDBUSCF_DEV] = sc->sc_device; /* always 0 */ 603 ldesc->locs[CARDBUSCF_FUNCTION] = function; 604 605 if ((csc = config_found_sm_loc((void *)sc, "cardbus", ldesc, 606 &ca, cardbusprint, cardbussubmatch)) == NULL) { 607 /* do not match */ 608 disable_function(sc, function); 609 free(ct, M_DEVBUF); 610 *previous_next = NULL; 611 } else { 612 /* found */ 613 previous_next = &(ct->ct_next); 614 ct->ct_device = csc; 615 ++no_work_funcs; 616 } 617 } 618 /* 619 * XXX power down pseudo function 8 (this will power down the card 620 * if no functions were attached). 621 */ 622 disable_function(sc, 8); 623 624 return (0); 625 } 626 627 static int 628 cardbussubmatch(struct device *parent, struct cfdata *cf, 629 const locdesc_t *ldesc, void *aux) 630 { 631 632 /* ldesc->locs[CARDBUSCF_DEV] is always 0 */ 633 if (cf->cf_loc[CARDBUSCF_DEV] != CARDBUSCF_DEV_DEFAULT && 634 cf->cf_loc[CARDBUSCF_DEV] != ldesc->locs[CARDBUSCF_DEV]) { 635 return (0); 636 } 637 if (cf->cf_loc[CARDBUSCF_FUNCTION] != CARDBUSCF_FUNCTION_DEFAULT && 638 cf->cf_loc[CARDBUSCF_FUNCTION] != ldesc->locs[CARDBUSCF_FUNCTION]) { 639 return (0); 640 } 641 642 return (config_match(parent, cf, aux)); 643 } 644 645 static int 646 cardbusprint(void *aux, const char *pnp) 647 { 648 struct cardbus_attach_args *ca = aux; 649 char devinfo[256]; 650 int i; 651 652 if (pnp) { 653 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 654 sizeof(devinfo)); 655 for (i = 0; i < 4; i++) { 656 if (ca->ca_cis.cis1_info[i] == NULL) 657 break; 658 if (i) 659 aprint_normal(", "); 660 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 661 } 662 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 663 i ? " " : "", 664 ca->ca_cis.manufacturer, ca->ca_cis.product); 665 aprint_normal(" %s at %s", devinfo, pnp); 666 } 667 aprint_normal(" dev %d function %d", ca->ca_device, ca->ca_function); 668 669 return (UNCONF); 670 } 671 672 /* 673 * void cardbus_detach_card(struct cardbus_softc *sc) 674 * 675 * This function detaches the card on the slot: detach device data 676 * structure and turns off the power. 677 * 678 * This function must not be called under interrupt context. 679 */ 680 void 681 cardbus_detach_card(struct cardbus_softc *sc) 682 { 683 struct cardbus_devfunc *ct, *ct_next; 684 685 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 686 struct device *fndev = ct->ct_device; 687 ct_next = ct->ct_next; 688 689 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 690 fndev->dv_xname)); 691 /* call device detach function */ 692 693 if (0 != config_detach(fndev, 0)) { 694 printf("%s: cannot detach dev %s, function %d\n", 695 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 696 } 697 } 698 699 sc->sc_poweron_func = 0; 700 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 701 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 702 } 703 704 void 705 cardbus_childdetached(struct device *self, struct device *child) 706 { 707 struct cardbus_softc *sc = (struct cardbus_softc *)self; 708 struct cardbus_devfunc *ct, *ct_next, **prev_next; 709 710 prev_next = &(sc->sc_funcs); 711 712 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 713 ct_next = ct->ct_next; 714 715 if (ct->ct_device == child) { 716 KASSERT(child->dv_locators[CARDBUSCF_FUNCTION] 717 == ct->ct_func); 718 sc->sc_poweron_func &= ~(1 << ct->ct_func); 719 *prev_next = ct->ct_next; 720 free(ct, M_DEVBUF); 721 return; 722 } 723 724 prev_next = &(ct->ct_next); 725 } 726 727 printf("%s: cardbus_childdetached: %s not found\n", 728 self->dv_xname, child->dv_xname); 729 } 730 731 /* 732 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 733 * Interrupt handler of pccard. 734 * args: 735 * cardbus_chipset_tag_t *cc 736 * int irq: 737 */ 738 void * 739 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 740 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 741 { 742 743 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 744 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 745 } 746 747 /* 748 * void cardbus_intr_disestablish(cc, cf, handler) 749 * Interrupt handler of pccard. 750 * args: 751 * cardbus_chipset_tag_t *cc 752 */ 753 void 754 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 755 void *handler) 756 { 757 758 DPRINTF(("- pccard_intr_disestablish\n")); 759 (*cf->cardbus_intr_disestablish)(cc, handler); 760 } 761 762 /* 763 * XXX this should be merged with cardbus_function_{enable,disable}, 764 * but we don't have a ct when these functions are called. 765 */ 766 static void 767 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 768 { 769 770 if (sc->sc_poweron_func == 0) { 771 /* switch to 3V and/or wait for power to stabilize */ 772 if (cdstatus & CARDBUS_3V_CARD) { 773 /* 774 * sc_poweron_func must be substituted before 775 * entering sleep, in order to avoid turn on 776 * power twice. 777 */ 778 sc->sc_poweron_func |= (1 << function); 779 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 780 } else { 781 /* No cards other than 3.3V cards. */ 782 return; 783 } 784 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 785 } 786 sc->sc_poweron_func |= (1 << function); 787 } 788 789 static void 790 disable_function(struct cardbus_softc *sc, int function) 791 { 792 793 sc->sc_poweron_func &= ~(1 << function); 794 if (sc->sc_poweron_func == 0) { 795 /* power-off because no functions are enabled */ 796 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 797 } 798 } 799 800 /* 801 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 802 * 803 * This function enables a function on a card. When no power is 804 * applied on the card, power will be applied on it. 805 */ 806 int 807 cardbus_function_enable(struct cardbus_softc *sc, int func) 808 { 809 cardbus_chipset_tag_t cc = sc->sc_cc; 810 cardbus_function_tag_t cf = sc->sc_cf; 811 cardbusreg_t command; 812 cardbustag_t tag; 813 814 DPRINTF(("entering cardbus_function_enable... ")); 815 816 /* entering critical area */ 817 818 /* XXX: sc_vold should be used */ 819 enable_function(sc, CARDBUS_3V_CARD, func); 820 821 /* exiting critical area */ 822 823 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 824 825 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 826 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 827 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 828 829 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 830 831 cardbus_free_tag(cc, cf, tag); 832 833 DPRINTF(("%x\n", sc->sc_poweron_func)); 834 835 return (0); 836 } 837 838 /* 839 * int cardbus_function_disable(struct cardbus_softc *, int func) 840 * 841 * This function disable a function on a card. When no functions are 842 * enabled, it turns off the power. 843 */ 844 int 845 cardbus_function_disable(struct cardbus_softc *sc, int func) 846 { 847 848 DPRINTF(("entering cardbus_function_disable... ")); 849 850 disable_function(sc, func); 851 852 return (0); 853 } 854 855 /* 856 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 857 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 858 * cardbusreg_t *value) 859 * 860 * Find the specified PCI capability. 861 */ 862 int 863 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 864 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 865 { 866 cardbusreg_t reg; 867 unsigned int ofs; 868 869 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 870 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 871 return (0); 872 873 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 874 PCI_CAPLISTPTR_REG)); 875 while (ofs != 0) { 876 #ifdef DIAGNOSTIC 877 if ((ofs & 3) || (ofs < 0x40)) 878 panic("cardbus_get_capability"); 879 #endif 880 reg = cardbus_conf_read(cc, cf, tag, ofs); 881 if (PCI_CAPLIST_CAP(reg) == capid) { 882 if (offset) 883 *offset = ofs; 884 if (value) 885 *value = reg; 886 return (1); 887 } 888 ofs = PCI_CAPLIST_NEXT(reg); 889 } 890 891 return (0); 892 } 893 894 /* 895 * below this line, there are some functions for decoding tuples. 896 * They should go out from this file. 897 */ 898 899 static u_int8_t * 900 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 901 902 static int 903 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 904 { 905 u_int8_t *tp = tuple; 906 907 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 908 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 909 return (0); 910 } 911 912 while (NULL != (tp = decode_tuple(tp, func, data))) { 913 if (tuple + buflen < tp) { 914 break; 915 } 916 } 917 918 return (1); 919 } 920 921 static u_int8_t * 922 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 923 { 924 u_int8_t type; 925 u_int8_t len; 926 927 type = tuple[0]; 928 len = tuple[1] + 2; 929 930 (*func)(tuple, len, data); 931 932 if (type == PCMCIA_CISTPL_END) { 933 return (NULL); 934 } 935 936 return (tuple + len); 937 } 938 939 /* 940 * XXX: this is another reason why this code should be shared with PCI. 941 */ 942 int 943 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 944 int *oldstate) 945 { 946 cardbus_chipset_tag_t cc = ct->ct_cc; 947 cardbus_function_tag_t cf = ct->ct_cf; 948 949 int offset; 950 pcireg_t value, cap, now; 951 952 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 953 &value)) 954 return EOPNOTSUPP; 955 956 cap = value >> 16; 957 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 958 now = value & PCI_PMCSR_STATE_MASK; 959 value &= ~PCI_PMCSR_STATE_MASK; 960 if (oldstate) { 961 switch (now) { 962 case PCI_PMCSR_STATE_D0: 963 *oldstate = PCI_PWR_D0; 964 break; 965 case PCI_PMCSR_STATE_D1: 966 *oldstate = PCI_PWR_D1; 967 break; 968 case PCI_PMCSR_STATE_D2: 969 *oldstate = PCI_PWR_D2; 970 break; 971 case PCI_PMCSR_STATE_D3: 972 *oldstate = PCI_PWR_D3; 973 break; 974 default: 975 return EINVAL; 976 } 977 } 978 if (newstate == NULL) 979 return 0; 980 switch (*newstate) { 981 case PCI_PWR_D0: 982 if (now == PCI_PMCSR_STATE_D0) 983 return 0; 984 value |= PCI_PMCSR_STATE_D0; 985 break; 986 case PCI_PWR_D1: 987 if (now == PCI_PMCSR_STATE_D1) 988 return 0; 989 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 990 return EINVAL; 991 if (!(cap & PCI_PMCR_D1SUPP)) 992 return EOPNOTSUPP; 993 value |= PCI_PMCSR_STATE_D1; 994 break; 995 case PCI_PWR_D2: 996 if (now == PCI_PMCSR_STATE_D2) 997 return 0; 998 if (now == PCI_PMCSR_STATE_D3) 999 return EINVAL; 1000 if (!(cap & PCI_PMCR_D2SUPP)) 1001 return EOPNOTSUPP; 1002 value |= PCI_PMCSR_STATE_D2; 1003 break; 1004 case PCI_PWR_D3: 1005 if (now == PCI_PMCSR_STATE_D3) 1006 return 0; 1007 value |= PCI_PMCSR_STATE_D3; 1008 break; 1009 default: 1010 return EINVAL; 1011 } 1012 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 1013 DELAY(1000); 1014 1015 return 0; 1016 } 1017 1018 int 1019 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 1020 int newpwr) 1021 { 1022 int oldpwr, error; 1023 1024 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 1025 return error; 1026 1027 if (oldpwr == newpwr) 1028 return 0; 1029 1030 if (oldpwr > newpwr) { 1031 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 1032 return 0; 1033 } 1034 1035 /* oldpwr < newpwr */ 1036 switch (oldpwr) { 1037 case PCI_PWR_D3: 1038 /* 1039 * XXX: This is because none of the devices do 1040 * the necessary song and dance for now to wakeup 1041 * Once this 1042 */ 1043 printf("%s: cannot wake up from power state D%d\n", 1044 dvname, oldpwr); 1045 return EINVAL; 1046 default: 1047 printf("%s: waking up from power state D%d\n", 1048 dvname, oldpwr); 1049 return 0; 1050 } 1051 } 1052 1053 1054 #ifdef CARDBUS_DEBUG 1055 static const char *tuple_name(int); 1056 static const char *tuple_names[] = { 1057 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 1058 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 1059 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 1060 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 1061 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 1062 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 1063 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 1064 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 1065 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 1066 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 1067 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 1068 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 1069 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 1070 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 1071 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 1072 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 1073 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 1074 "DATE", "BATTERY", "ORG" 1075 }; 1076 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 1077 1078 static const char * 1079 tuple_name(int type) 1080 { 1081 1082 if (0 <= type && type < NAME_LEN(tuple_names)) { 1083 return (tuple_names[type]); 1084 } else if (type == 0xff) { 1085 return ("END"); 1086 } else { 1087 return ("Reserved"); 1088 } 1089 } 1090 1091 static void 1092 print_tuple(u_int8_t *tuple, int len, void *data) 1093 { 1094 int i; 1095 1096 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1097 1098 for (i = 0; i < len; ++i) { 1099 if (i % 16 == 0) { 1100 printf(" 0x%2x:", i); 1101 } 1102 printf(" %x", tuple[i]); 1103 if (i % 16 == 15) { 1104 printf("\n"); 1105 } 1106 } 1107 if (i % 16 != 0) { 1108 printf("\n"); 1109 } 1110 } 1111 #endif 1112
Indexes created Tue Sep 30 20:09:53 GMT 2025