cardbus.c revision 1.75
1 /* $NetBSD: cardbus.c,v 1.75 2007/02/17 20:20:08 dyoung 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 1.75 2007/02/17 20:20:08 dyoung Exp $"); 37 38 #include "opt_cardbus.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/device.h> 43 #include <sys/malloc.h> 44 #include <sys/kernel.h> 45 #include <sys/syslog.h> 46 #include <sys/proc.h> 47 #include <sys/reboot.h> /* for AB_* needed by bootverbose */ 48 49 #include <machine/bus.h> 50 51 #include <dev/cardbus/cardbusvar.h> 52 #include <dev/pci/pcidevs.h> 53 54 #include <dev/cardbus/cardbus_exrom.h> 55 56 #include <dev/pci/pcivar.h> /* XXX */ 57 #include <dev/pci/pcireg.h> /* XXX */ 58 59 #include <dev/pcmcia/pcmciareg.h> 60 61 #include "locators.h" 62 63 #if defined CARDBUS_DEBUG 64 #define STATIC 65 #define DPRINTF(a) printf a 66 #else 67 #define STATIC static 68 #define DPRINTF(a) 69 #endif 70 71 72 STATIC void cardbusattach(struct device *, struct device *, void *); 73 STATIC int cardbusmatch(struct device *, struct cfdata *, void *); 74 int cardbus_rescan(struct device *, const char *, const int *); 75 void cardbus_childdetached(struct device *, struct device *); 76 static int cardbusprint(void *, const char *); 77 78 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 79 80 static int decode_tuples(u_int8_t *, int, tuple_decode_func, void*); 81 #ifdef CARDBUS_DEBUG 82 static void print_tuple(u_int8_t*, int, void*); 83 #endif 84 85 static int cardbus_read_tuples(struct cardbus_attach_args *, 86 cardbusreg_t, u_int8_t *, size_t); 87 88 static void enable_function(struct cardbus_softc *, int, int); 89 static void disable_function(struct cardbus_softc *, int); 90 91 CFATTACH_DECL2(cardbus, sizeof(struct cardbus_softc), 92 cardbusmatch, cardbusattach, NULL, NULL, 93 cardbus_rescan, cardbus_childdetached); 94 95 #ifndef __NetBSD_Version__ 96 struct cfdriver cardbus_cd = { 97 NULL, "cardbus", DV_DULL 98 }; 99 #endif 100 101 102 STATIC int 103 cardbusmatch(struct device *parent, struct cfdata *cf, void *aux) 104 { 105 struct cbslot_attach_args *cba = aux; 106 107 if (strcmp(cba->cba_busname, cf->cf_name)) { 108 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 109 cba->cba_busname, cf->cf_name)); 110 return (0); 111 } 112 113 return (1); 114 } 115 116 STATIC void 117 cardbusattach(struct device *parent, struct device *self, void *aux) 118 { 119 struct cardbus_softc *sc = device_private(self); 120 struct cbslot_attach_args *cba = aux; 121 122 sc->sc_bus = cba->cba_bus; 123 sc->sc_intrline = cba->cba_intrline; 124 sc->sc_cacheline = cba->cba_cacheline; 125 sc->sc_lattimer = cba->cba_lattimer; 126 127 printf(": bus %d", sc->sc_bus); 128 if (bootverbose) 129 printf(" cacheline 0x%x, lattimer 0x%x", sc->sc_cacheline, 130 sc->sc_lattimer); 131 printf("\n"); 132 133 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 134 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 135 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 136 sc->sc_cc = cba->cba_cc; 137 sc->sc_cf = cba->cba_cf; 138 139 #if rbus 140 sc->sc_rbus_iot = cba->cba_rbus_iot; 141 sc->sc_rbus_memt = cba->cba_rbus_memt; 142 #endif 143 } 144 145 static int 146 cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr, 147 u_int8_t *tuples, size_t len) 148 { 149 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 150 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 151 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 152 cardbustag_t tag = ca->ca_tag; 153 cardbusreg_t command; 154 bus_space_tag_t bar_tag; 155 bus_space_handle_t bar_memh; 156 bus_size_t bar_size; 157 bus_addr_t bar_addr; 158 cardbusreg_t reg; 159 int found = 0; 160 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 161 int i, j; 162 163 memset(tuples, 0, len); 164 165 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 166 167 switch (cardbus_space) { 168 case CARDBUS_CIS_ASI_TUPLE: 169 DPRINTF(("%s: reading CIS data from configuration space\n", 170 sc->sc_dev.dv_xname)); 171 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 172 u_int32_t e = (*cf->cardbus_conf_read)(cc, tag, i); 173 tuples[j] = 0xff & e; 174 e >>= 8; 175 tuples[j + 1] = 0xff & e; 176 e >>= 8; 177 tuples[j + 2] = 0xff & e; 178 e >>= 8; 179 tuples[j + 3] = 0xff & e; 180 j += 4; 181 } 182 found++; 183 break; 184 185 case CARDBUS_CIS_ASI_BAR0: 186 case CARDBUS_CIS_ASI_BAR1: 187 case CARDBUS_CIS_ASI_BAR2: 188 case CARDBUS_CIS_ASI_BAR3: 189 case CARDBUS_CIS_ASI_BAR4: 190 case CARDBUS_CIS_ASI_BAR5: 191 case CARDBUS_CIS_ASI_ROM: 192 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 193 reg = CARDBUS_ROM_REG; 194 DPRINTF(("%s: reading CIS data from ROM\n", 195 sc->sc_dev.dv_xname)); 196 } else { 197 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 198 DPRINTF(("%s: reading CIS data from BAR%d\n", 199 sc->sc_dev.dv_xname, cardbus_space - 1)); 200 } 201 202 /* 203 * XXX zero register so mapreg_map doesn't get confused by old 204 * contents. 205 */ 206 cardbus_conf_write(cc, cf, tag, reg, 0); 207 if (Cardbus_mapreg_map(ca->ca_ct, reg, 208 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 209 0, &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 210 printf("%s: failed to map memory\n", 211 sc->sc_dev.dv_xname); 212 return (1); 213 } 214 215 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 216 cardbusreg_t exrom; 217 int save; 218 struct cardbus_rom_image_head rom_image; 219 struct cardbus_rom_image *p; 220 221 save = splhigh(); 222 /* enable rom address decoder */ 223 exrom = cardbus_conf_read(cc, cf, tag, reg); 224 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 225 226 command = cardbus_conf_read(cc, cf, tag, 227 CARDBUS_COMMAND_STATUS_REG); 228 cardbus_conf_write(cc, cf, tag, 229 CARDBUS_COMMAND_STATUS_REG, 230 command | CARDBUS_COMMAND_MEM_ENABLE); 231 232 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 233 &rom_image)) 234 goto out; 235 236 SIMPLEQ_FOREACH(p, &rom_image, next) { 237 if (p->rom_image == 238 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 239 bus_space_read_region_1(p->romt, 240 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 241 tuples, MIN(p->image_size, len)); 242 found++; 243 break; 244 } 245 } 246 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 247 SIMPLEQ_REMOVE_HEAD(&rom_image, next); 248 free(p, M_DEVBUF); 249 } 250 out: 251 exrom = cardbus_conf_read(cc, cf, tag, reg); 252 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 253 splx(save); 254 } else { 255 command = cardbus_conf_read(cc, cf, tag, 256 CARDBUS_COMMAND_STATUS_REG); 257 cardbus_conf_write(cc, cf, tag, 258 CARDBUS_COMMAND_STATUS_REG, 259 command | CARDBUS_COMMAND_MEM_ENABLE); 260 /* XXX byte order? */ 261 bus_space_read_region_1(ca->ca_memt, bar_memh, 262 cis_ptr, tuples, MIN(bar_size, len)); 263 found++; 264 } 265 command = cardbus_conf_read(cc, cf, tag, 266 CARDBUS_COMMAND_STATUS_REG); 267 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 268 command & ~CARDBUS_COMMAND_MEM_ENABLE); 269 cardbus_conf_write(cc, cf, tag, reg, 0); 270 271 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 272 bar_size); 273 break; 274 275 #ifdef DIAGNOSTIC 276 default: 277 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 278 cardbus_space); 279 #endif 280 } 281 return (!found); 282 } 283 284 static void 285 parse_tuple(u_int8_t *tuple, int len, void *data) 286 { 287 struct cardbus_cis_info *cis = data; 288 char *p; 289 int i, bar_index; 290 291 switch (tuple[0]) { 292 case PCMCIA_CISTPL_MANFID: 293 if (tuple[1] != 4) { 294 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 295 __func__, tuple[1])); 296 break; 297 } 298 cis->manufacturer = tuple[2] | (tuple[3] << 8); 299 cis->product = tuple[4] | (tuple[5] << 8); 300 break; 301 302 case PCMCIA_CISTPL_VERS_1: 303 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 304 i = 0; 305 p = cis->cis1_info_buf + 2; 306 while (i < 307 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 308 if (p >= cis->cis1_info_buf + tuple[1] || *p == '\xff') 309 break; 310 cis->cis1_info[i++] = p; 311 while (*p != '\0' && *p != '\xff') 312 p++; 313 if (*p == '\0') 314 p++; 315 } 316 break; 317 318 case PCMCIA_CISTPL_BAR: 319 if (tuple[1] != 6) { 320 DPRINTF(("%s: BAR with short length (%d)\n", 321 __func__, tuple[1])); 322 break; 323 } 324 bar_index = tuple[2] & 7; 325 if (bar_index == 0) { 326 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 327 break; 328 } 329 bar_index--; 330 cis->bar[bar_index].flags = tuple[2]; 331 cis->bar[bar_index].size = 332 (tuple[4] << 0) | 333 (tuple[5] << 8) | 334 (tuple[6] << 16) | 335 (tuple[7] << 24); 336 break; 337 338 case PCMCIA_CISTPL_FUNCID: 339 cis->funcid = tuple[2]; 340 break; 341 342 case PCMCIA_CISTPL_FUNCE: 343 switch (cis->funcid) { 344 case PCMCIA_FUNCTION_SERIAL: 345 if (tuple[1] >= 2 && 346 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */ 347 tuple[2] == 0) { 348 cis->funce.serial.uart_type = tuple[3] & 0x1f; 349 cis->funce.serial.uart_present = 1; 350 } 351 break; 352 353 case PCMCIA_FUNCTION_NETWORK: 354 if (tuple[1] >= 8 && 355 tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 356 if (tuple[3] > 357 sizeof(cis->funce.network.netid)) { 358 DPRINTF(("%s: unknown network id type " 359 "(len = %d)\n", 360 __func__, tuple[3])); 361 } else { 362 cis->funce.network.netid_present = 1; 363 memcpy(cis->funce.network.netid, 364 tuple + 4, tuple[3]); 365 } 366 } 367 break; 368 } 369 break; 370 } 371 } 372 373 /* 374 * int cardbus_attach_card(struct cardbus_softc *sc) 375 * 376 * This function attaches the card on the slot: turns on power, 377 * reads and analyses tuple, sets configuration index. 378 * 379 * This function returns the number of recognised device functions. 380 * If no functions are recognised, return 0. 381 */ 382 int 383 cardbus_attach_card(struct cardbus_softc *sc) 384 { 385 cardbus_chipset_tag_t cc; 386 cardbus_function_tag_t cf; 387 int cdstatus; 388 static int wildcard[CARDBUSCF_NLOCS] = { 389 CARDBUSCF_FUNCTION_DEFAULT 390 }; 391 392 cc = sc->sc_cc; 393 cf = sc->sc_cf; 394 395 DPRINTF(("cardbus_attach_card: cb%d start\n", 396 device_unit(&sc->sc_dev))); 397 398 /* inspect initial voltage */ 399 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 400 DPRINTF(("%s: no CardBus card on cb%d\n", __func__, 401 device_unit(&sc->sc_dev))); 402 return (0); 403 } 404 405 cardbus_rescan(&sc->sc_dev, "cardbus", wildcard); 406 return (1); /* XXX */ 407 } 408 409 int 410 cardbus_rescan(struct device *self, const char *ifattr, 411 const int *locators) 412 { 413 struct cardbus_softc *sc = device_private(self); 414 cardbus_chipset_tag_t cc; 415 cardbus_function_tag_t cf; 416 cardbustag_t tag; 417 cardbusreg_t id, class, cis_ptr; 418 cardbusreg_t bhlc; 419 int cdstatus; 420 int function, nfunction; 421 struct device *csc; 422 cardbus_devfunc_t ct; 423 424 cc = sc->sc_cc; 425 cf = sc->sc_cf; 426 427 /* inspect initial voltage */ 428 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 429 DPRINTF(("%s: no CardBus card on cb%d\n", __func__, 430 device_unit(&sc->sc_dev))); 431 return (0); 432 } 433 434 /* 435 * XXX use fake function 8 to keep power on during whole 436 * configuration. 437 */ 438 enable_function(sc, cdstatus, 8); 439 function = 0; 440 441 tag = cardbus_make_tag(cc, cf, sc->sc_bus, function); 442 443 /* 444 * Wait until power comes up. Maxmum 500 ms. 445 */ 446 { 447 int i; 448 449 for (i = 0; i < 5; ++i) { 450 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 451 if (id != 0xffffffff && id != 0) { 452 break; 453 } 454 if (cold) { /* before kernel thread invoked */ 455 delay(100 * 1000); 456 } else { /* thread context */ 457 if (tsleep((void *)sc, PCATCH, "cardbus", 458 hz / 10) != EWOULDBLOCK) { 459 break; 460 } 461 } 462 } 463 if (i == 5) { 464 return (EIO); 465 } 466 } 467 468 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 469 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 470 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 471 472 for (function = 0; function < nfunction; function++) { 473 struct cardbus_attach_args ca; 474 int locs[CARDBUSCF_NLOCS]; 475 476 if (locators[CARDBUSCF_FUNCTION] != 477 CARDBUSCF_FUNCTION_DEFAULT && 478 locators[CARDBUSCF_FUNCTION] != function) 479 continue; 480 481 if (sc->sc_funcs[function]) 482 continue; 483 484 tag = cardbus_make_tag(cc, cf, sc->sc_bus, function); 485 486 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 487 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 488 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 489 490 /* Invalid vendor ID value? */ 491 if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID) { 492 continue; 493 } 494 495 DPRINTF(("cardbus_attach_card: " 496 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 497 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 498 499 enable_function(sc, cdstatus, function); 500 501 /* clean up every BAR */ 502 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 503 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 504 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 505 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 506 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 507 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 508 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 509 510 /* set initial latency and cacheline size */ 511 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 512 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 513 function, bhlc)); 514 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 515 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 516 bhlc |= (sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << 517 CARDBUS_CACHELINE_SHIFT; 518 bhlc |= (sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << 519 CARDBUS_LATTIMER_SHIFT; 520 521 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 522 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 523 DPRINTF(("0x%08x\n", bhlc)); 524 525 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 526 bhlc &= ~(CARDBUS_LATTIMER_MASK << 527 CARDBUS_LATTIMER_SHIFT); 528 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 529 cardbus_conf_write(cc, cf, tag, 530 CARDBUS_BHLC_REG, bhlc); 531 } 532 533 /* 534 * We need to allocate the ct here, since we might 535 * need it when reading the CIS 536 */ 537 if ((ct = malloc(sizeof(struct cardbus_devfunc), 538 M_DEVBUF, M_NOWAIT)) == NULL) { 539 panic("no room for cardbus_tag"); 540 } 541 542 ct->ct_cc = sc->sc_cc; 543 ct->ct_cf = sc->sc_cf; 544 ct->ct_bus = sc->sc_bus; 545 ct->ct_func = function; 546 ct->ct_sc = sc; 547 sc->sc_funcs[function] = ct; 548 549 memset(&ca, 0, sizeof(ca)); 550 551 ca.ca_ct = ct; 552 553 ca.ca_iot = sc->sc_iot; 554 ca.ca_memt = sc->sc_memt; 555 ca.ca_dmat = sc->sc_dmat; 556 557 #if rbus 558 ca.ca_rbus_iot = sc->sc_rbus_iot; 559 ca.ca_rbus_memt= sc->sc_rbus_memt; 560 #endif 561 562 ca.ca_tag = tag; 563 ca.ca_bus = sc->sc_bus; 564 ca.ca_function = function; 565 ca.ca_id = id; 566 ca.ca_class = class; 567 568 ca.ca_intrline = sc->sc_intrline; 569 570 if (cis_ptr != 0) { 571 #define TUPLESIZE 2048 572 u_int8_t *tuple = malloc(TUPLESIZE, M_DEVBUF, M_WAITOK); 573 if (cardbus_read_tuples(&ca, cis_ptr, 574 tuple, TUPLESIZE)) { 575 printf("cardbus_attach_card: " 576 "failed to read CIS\n"); 577 } else { 578 #ifdef CARDBUS_DEBUG 579 decode_tuples(tuple, TUPLESIZE, 580 print_tuple, NULL); 581 #endif 582 decode_tuples(tuple, TUPLESIZE, 583 parse_tuple, &ca.ca_cis); 584 } 585 free(tuple, M_DEVBUF); 586 } 587 588 locs[CARDBUSCF_FUNCTION] = function; 589 590 if ((csc = config_found_sm_loc((void *)sc, "cardbus", locs, 591 &ca, cardbusprint, config_stdsubmatch)) == NULL) { 592 /* do not match */ 593 disable_function(sc, function); 594 sc->sc_funcs[function] = NULL; 595 free(ct, M_DEVBUF); 596 } else { 597 /* found */ 598 ct->ct_device = csc; 599 } 600 } 601 /* 602 * XXX power down pseudo function 8 (this will power down the card 603 * if no functions were attached). 604 */ 605 disable_function(sc, 8); 606 607 return (0); 608 } 609 610 static int 611 cardbusprint(void *aux, const char *pnp) 612 { 613 struct cardbus_attach_args *ca = aux; 614 char devinfo[256]; 615 int i; 616 617 if (pnp) { 618 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 619 sizeof(devinfo)); 620 for (i = 0; i < 4; i++) { 621 if (ca->ca_cis.cis1_info[i] == NULL) 622 break; 623 if (i) 624 aprint_normal(", "); 625 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 626 } 627 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 628 i ? " " : "", 629 ca->ca_cis.manufacturer, ca->ca_cis.product); 630 aprint_normal(" %s at %s", devinfo, pnp); 631 } 632 aprint_normal(" function %d", ca->ca_function); 633 634 return (UNCONF); 635 } 636 637 /* 638 * void cardbus_detach_card(struct cardbus_softc *sc) 639 * 640 * This function detaches the card on the slot: detach device data 641 * structure and turns off the power. 642 * 643 * This function must not be called under interrupt context. 644 */ 645 void 646 cardbus_detach_card(struct cardbus_softc *sc) 647 { 648 int f; 649 struct cardbus_devfunc *ct; 650 651 for (f = 0; f < 8; f++) { 652 ct = sc->sc_funcs[f]; 653 if (!ct) 654 continue; 655 656 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 657 ct->ct_device->dv_xname)); 658 /* call device detach function */ 659 660 if (config_detach(ct->ct_device, 0) != 0) { 661 printf("%s: cannot detach dev %s, function %d\n", 662 sc->sc_dev.dv_xname, ct->ct_device->dv_xname, 663 ct->ct_func); 664 } 665 } 666 667 sc->sc_poweron_func = 0; 668 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 669 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 670 } 671 672 void 673 cardbus_childdetached(struct device *self, struct device *child) 674 { 675 struct cardbus_softc *sc = device_private(self); 676 struct cardbus_devfunc *ct; 677 678 ct = sc->sc_funcs[device_locator(child, CARDBUSCF_FUNCTION)]; 679 KASSERT(ct->ct_device == child); 680 681 sc->sc_poweron_func &= ~(1 << ct->ct_func); 682 sc->sc_funcs[ct->ct_func] = NULL; 683 free(ct, M_DEVBUF); 684 } 685 686 /* 687 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 688 * Interrupt handler of pccard. 689 * args: 690 * cardbus_chipset_tag_t *cc 691 * int irq: 692 */ 693 void * 694 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 695 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 696 { 697 698 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 699 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 700 } 701 702 /* 703 * void cardbus_intr_disestablish(cc, cf, handler) 704 * Interrupt handler of pccard. 705 * args: 706 * cardbus_chipset_tag_t *cc 707 */ 708 void 709 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 710 void *handler) 711 { 712 713 DPRINTF(("- pccard_intr_disestablish\n")); 714 (*cf->cardbus_intr_disestablish)(cc, handler); 715 } 716 717 /* 718 * XXX this should be merged with cardbus_function_{enable,disable}, 719 * but we don't have a ct when these functions are called. 720 */ 721 static void 722 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 723 { 724 725 if (sc->sc_poweron_func == 0) { 726 /* switch to 3V and/or wait for power to stabilize */ 727 if (cdstatus & CARDBUS_3V_CARD) { 728 /* 729 * sc_poweron_func must be substituted before 730 * entering sleep, in order to avoid turn on 731 * power twice. 732 */ 733 sc->sc_poweron_func |= (1 << function); 734 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 735 } else { 736 /* No cards other than 3.3V cards. */ 737 return; 738 } 739 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 740 } 741 sc->sc_poweron_func |= (1 << function); 742 } 743 744 static void 745 disable_function(struct cardbus_softc *sc, int function) 746 { 747 748 sc->sc_poweron_func &= ~(1 << function); 749 if (sc->sc_poweron_func == 0) { 750 /* power-off because no functions are enabled */ 751 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 752 } 753 } 754 755 /* 756 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 757 * 758 * This function enables a function on a card. When no power is 759 * applied on the card, power will be applied on it. 760 */ 761 int 762 cardbus_function_enable(struct cardbus_softc *sc, int func) 763 { 764 cardbus_chipset_tag_t cc = sc->sc_cc; 765 cardbus_function_tag_t cf = sc->sc_cf; 766 cardbusreg_t command; 767 cardbustag_t tag; 768 769 DPRINTF(("entering cardbus_function_enable... ")); 770 771 /* entering critical area */ 772 773 /* XXX: sc_vold should be used */ 774 enable_function(sc, CARDBUS_3V_CARD, func); 775 776 /* exiting critical area */ 777 778 tag = cardbus_make_tag(cc, cf, sc->sc_bus, func); 779 780 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 781 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 782 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 783 784 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 785 786 cardbus_free_tag(cc, cf, tag); 787 788 DPRINTF(("%x\n", sc->sc_poweron_func)); 789 790 return (0); 791 } 792 793 /* 794 * int cardbus_function_disable(struct cardbus_softc *, int func) 795 * 796 * This function disable a function on a card. When no functions are 797 * enabled, it turns off the power. 798 */ 799 int 800 cardbus_function_disable(struct cardbus_softc *sc, int func) 801 { 802 803 DPRINTF(("entering cardbus_function_disable... ")); 804 805 disable_function(sc, func); 806 807 return (0); 808 } 809 810 /* 811 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 812 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 813 * cardbusreg_t *value) 814 * 815 * Find the specified PCI capability. 816 */ 817 int 818 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 819 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 820 { 821 cardbusreg_t reg; 822 unsigned int ofs; 823 824 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 825 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 826 return (0); 827 828 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 829 PCI_CAPLISTPTR_REG)); 830 while (ofs != 0) { 831 #ifdef DIAGNOSTIC 832 if ((ofs & 3) || (ofs < 0x40)) 833 panic("cardbus_get_capability"); 834 #endif 835 reg = cardbus_conf_read(cc, cf, tag, ofs); 836 if (PCI_CAPLIST_CAP(reg) == capid) { 837 if (offset) 838 *offset = ofs; 839 if (value) 840 *value = reg; 841 return (1); 842 } 843 ofs = PCI_CAPLIST_NEXT(reg); 844 } 845 846 return (0); 847 } 848 849 /* 850 * below this line, there are some functions for decoding tuples. 851 * They should go out from this file. 852 */ 853 854 static u_int8_t * 855 decode_tuple(u_int8_t *, u_int8_t *, tuple_decode_func, void *); 856 857 static int 858 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 859 { 860 u_int8_t *tp = tuple; 861 862 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 863 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 864 return (0); 865 } 866 867 while ((tp = decode_tuple(tp, tuple + buflen, func, data)) != NULL) 868 ; 869 870 return (1); 871 } 872 873 static u_int8_t * 874 decode_tuple(u_int8_t *tuple, u_int8_t *end, 875 tuple_decode_func func, void *data) 876 { 877 u_int8_t type; 878 u_int8_t len; 879 880 type = tuple[0]; 881 switch (type) { 882 case PCMCIA_CISTPL_NULL: 883 case PCMCIA_CISTPL_END: 884 len = 1; 885 break; 886 default: 887 if (tuple + 2 > end) 888 return (NULL); 889 len = tuple[1] + 2; 890 break; 891 } 892 893 if (tuple + len > end) 894 return (NULL); 895 896 (*func)(tuple, len, data); 897 898 if (type == PCMCIA_CISTPL_END || tuple + len == end) 899 return (NULL); 900 901 return (tuple + len); 902 } 903 904 /* 905 * XXX: this is another reason why this code should be shared with PCI. 906 */ 907 int 908 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 909 int *oldstate) 910 { 911 cardbus_chipset_tag_t cc = ct->ct_cc; 912 cardbus_function_tag_t cf = ct->ct_cf; 913 914 int offset; 915 pcireg_t value, cap, now; 916 917 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 918 &value)) 919 return EOPNOTSUPP; 920 921 cap = value >> 16; 922 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 923 now = value & PCI_PMCSR_STATE_MASK; 924 value &= ~PCI_PMCSR_STATE_MASK; 925 if (oldstate) { 926 switch (now) { 927 case PCI_PMCSR_STATE_D0: 928 *oldstate = PCI_PWR_D0; 929 break; 930 case PCI_PMCSR_STATE_D1: 931 *oldstate = PCI_PWR_D1; 932 break; 933 case PCI_PMCSR_STATE_D2: 934 *oldstate = PCI_PWR_D2; 935 break; 936 case PCI_PMCSR_STATE_D3: 937 *oldstate = PCI_PWR_D3; 938 break; 939 default: 940 return EINVAL; 941 } 942 } 943 if (newstate == NULL) 944 return 0; 945 switch (*newstate) { 946 case PCI_PWR_D0: 947 if (now == PCI_PMCSR_STATE_D0) 948 return 0; 949 value |= PCI_PMCSR_STATE_D0; 950 break; 951 case PCI_PWR_D1: 952 if (now == PCI_PMCSR_STATE_D1) 953 return 0; 954 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 955 return EINVAL; 956 if (!(cap & PCI_PMCR_D1SUPP)) 957 return EOPNOTSUPP; 958 value |= PCI_PMCSR_STATE_D1; 959 break; 960 case PCI_PWR_D2: 961 if (now == PCI_PMCSR_STATE_D2) 962 return 0; 963 if (now == PCI_PMCSR_STATE_D3) 964 return EINVAL; 965 if (!(cap & PCI_PMCR_D2SUPP)) 966 return EOPNOTSUPP; 967 value |= PCI_PMCSR_STATE_D2; 968 break; 969 case PCI_PWR_D3: 970 if (now == PCI_PMCSR_STATE_D3) 971 return 0; 972 value |= PCI_PMCSR_STATE_D3; 973 break; 974 default: 975 return EINVAL; 976 } 977 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 978 DELAY(1000); 979 980 return 0; 981 } 982 983 int 984 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 985 int newpwr) 986 { 987 int oldpwr, error; 988 989 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 990 return error; 991 992 if (oldpwr == newpwr) 993 return 0; 994 995 if (oldpwr > newpwr) { 996 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 997 return 0; 998 } 999 1000 /* oldpwr < newpwr */ 1001 switch (oldpwr) { 1002 case PCI_PWR_D3: 1003 /* 1004 * XXX: This is because none of the devices do 1005 * the necessary song and dance for now to wakeup 1006 * Once this 1007 */ 1008 printf("%s: cannot wake up from power state D%d\n", 1009 dvname, oldpwr); 1010 return EINVAL; 1011 default: 1012 printf("%s: waking up from power state D%d\n", 1013 dvname, oldpwr); 1014 return 0; 1015 } 1016 } 1017 1018 1019 #ifdef CARDBUS_DEBUG 1020 static const char *tuple_name(int); 1021 static const char *tuple_names[] = { 1022 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 1023 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 1024 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 1025 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 1026 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 1027 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 1028 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 1029 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 1030 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 1031 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 1032 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 1033 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 1034 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 1035 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 1036 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 1037 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 1038 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 1039 "DATE", "BATTERY", "ORG" 1040 }; 1041 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 1042 1043 static const char * 1044 tuple_name(int type) 1045 { 1046 1047 if (0 <= type && type < NAME_LEN(tuple_names)) { 1048 return (tuple_names[type]); 1049 } else if (type == 0xff) { 1050 return ("END"); 1051 } else { 1052 return ("Reserved"); 1053 } 1054 } 1055 1056 static void 1057 print_tuple(u_int8_t *tuple, int len, void *data) 1058 { 1059 int i; 1060 1061 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1062 1063 for (i = 0; i < len; ++i) { 1064 if (i % 16 == 0) { 1065 printf(" 0x%2x:", i); 1066 } 1067 printf(" %x", tuple[i]); 1068 if (i % 16 == 15) { 1069 printf("\n"); 1070 } 1071 } 1072 if (i % 16 != 0) { 1073 printf("\n"); 1074 } 1075 } 1076 #endif 1077
Indexes created Sat Sep 27 22:09:54 GMT 2025