cardbus.c revision 1.51
1 /* $NetBSD: cardbus.c,v 1.51 2004/08/02 19:14:28 mycroft 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 1.51 2004/08/02 19:14:28 mycroft 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 int cardbus_attach_card(struct cardbus_softc *); 72 73 STATIC int cardbusmatch(struct device *, struct cfdata *, void *); 74 static int cardbussubmatch(struct device *, struct cfdata *, void *); 75 static int cardbusprint(void *, const char *); 76 77 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 78 79 static int decode_tuples(u_int8_t *, int, tuple_decode_func, void*); 80 #ifdef CARDBUS_DEBUG 81 static void print_tuple(u_int8_t*, int, void*); 82 #endif 83 84 static int cardbus_read_tuples(struct cardbus_attach_args *, 85 cardbusreg_t, u_int8_t *, size_t); 86 87 static void enable_function(struct cardbus_softc *, int, int); 88 static void disable_function(struct cardbus_softc *, int); 89 90 CFATTACH_DECL(cardbus, sizeof(struct cardbus_softc), 91 cardbusmatch, cardbusattach, NULL, NULL); 92 93 #ifndef __NetBSD_Version__ 94 struct cfdriver cardbus_cd = { 95 NULL, "cardbus", DV_DULL 96 }; 97 #endif 98 99 100 STATIC int 101 cardbusmatch(struct device *parent, struct cfdata *cf, void *aux) 102 { 103 struct cbslot_attach_args *cba = aux; 104 105 if (strcmp(cba->cba_busname, cf->cf_name)) { 106 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 107 cba->cba_busname, cf->cf_name)); 108 return (0); 109 } 110 111 return (1); 112 } 113 114 STATIC void 115 cardbusattach(struct device *parent, struct device *self, void *aux) 116 { 117 struct cardbus_softc *sc = (void *)self; 118 struct cbslot_attach_args *cba = aux; 119 120 sc->sc_bus = cba->cba_bus; 121 sc->sc_device = 0; 122 sc->sc_intrline = cba->cba_intrline; 123 sc->sc_cacheline = cba->cba_cacheline; 124 sc->sc_lattimer = cba->cba_lattimer; 125 126 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 127 if (bootverbose) 128 printf(" cacheline 0x%x, lattimer 0x%x", sc->sc_cacheline, 129 sc->sc_lattimer); 130 printf("\n"); 131 132 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 133 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 134 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 135 sc->sc_cc = cba->cba_cc; 136 sc->sc_cf = cba->cba_cf; 137 138 #if rbus 139 sc->sc_rbus_iot = cba->cba_rbus_iot; 140 sc->sc_rbus_memt = cba->cba_rbus_memt; 141 #endif 142 143 sc->sc_funcs = NULL; 144 } 145 146 static int 147 cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr, 148 u_int8_t *tuples, size_t len) 149 { 150 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 151 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 152 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 153 cardbustag_t tag = ca->ca_tag; 154 cardbusreg_t command; 155 bus_space_tag_t bar_tag; 156 bus_space_handle_t bar_memh; 157 bus_size_t bar_size; 158 bus_addr_t bar_addr; 159 cardbusreg_t reg; 160 int found = 0; 161 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 162 int i, j; 163 164 memset(tuples, 0, len); 165 166 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 167 168 switch (cardbus_space) { 169 case CARDBUS_CIS_ASI_TUPLE: 170 DPRINTF(("%s: reading CIS data from configuration space\n", 171 sc->sc_dev.dv_xname)); 172 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 173 u_int32_t e = (*cf->cardbus_conf_read)(cc, tag, i); 174 tuples[j] = 0xff & e; 175 e >>= 8; 176 tuples[j + 1] = 0xff & e; 177 e >>= 8; 178 tuples[j + 2] = 0xff & e; 179 e >>= 8; 180 tuples[j + 3] = 0xff & e; 181 j += 4; 182 } 183 found++; 184 break; 185 186 case CARDBUS_CIS_ASI_BAR0: 187 case CARDBUS_CIS_ASI_BAR1: 188 case CARDBUS_CIS_ASI_BAR2: 189 case CARDBUS_CIS_ASI_BAR3: 190 case CARDBUS_CIS_ASI_BAR4: 191 case CARDBUS_CIS_ASI_BAR5: 192 case CARDBUS_CIS_ASI_ROM: 193 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 194 reg = CARDBUS_ROM_REG; 195 DPRINTF(("%s: reading CIS data from ROM\n", 196 sc->sc_dev.dv_xname)); 197 } else { 198 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 199 DPRINTF(("%s: reading CIS data from BAR%d\n", 200 sc->sc_dev.dv_xname, cardbus_space - 1)); 201 } 202 203 /* 204 * XXX zero register so mapreg_map doesn't get confused by old 205 * contents. 206 */ 207 cardbus_conf_write(cc, cf, tag, reg, 0); 208 if (Cardbus_mapreg_map(ca->ca_ct, reg, 209 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 210 0, &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 211 printf("%s: failed to map memory\n", 212 sc->sc_dev.dv_xname); 213 return (1); 214 } 215 216 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 217 cardbusreg_t exrom; 218 int save; 219 struct cardbus_rom_image_head rom_image; 220 struct cardbus_rom_image *p; 221 222 save = splhigh(); 223 /* enable rom address decoder */ 224 exrom = cardbus_conf_read(cc, cf, tag, reg); 225 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 226 227 command = cardbus_conf_read(cc, cf, tag, 228 CARDBUS_COMMAND_STATUS_REG); 229 cardbus_conf_write(cc, cf, tag, 230 CARDBUS_COMMAND_STATUS_REG, 231 command | CARDBUS_COMMAND_MEM_ENABLE); 232 233 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 234 &rom_image)) 235 goto out; 236 237 SIMPLEQ_FOREACH(p, &rom_image, next) { 238 if (p->rom_image == 239 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 240 bus_space_read_region_1(p->romt, 241 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 242 tuples, 256); 243 found++; 244 } 245 break; 246 } 247 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 248 SIMPLEQ_REMOVE_HEAD(&rom_image, next); 249 free(p, M_DEVBUF); 250 } 251 out: 252 exrom = cardbus_conf_read(cc, cf, tag, reg); 253 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 254 splx(save); 255 } else { 256 command = cardbus_conf_read(cc, cf, tag, 257 CARDBUS_COMMAND_STATUS_REG); 258 cardbus_conf_write(cc, cf, tag, 259 CARDBUS_COMMAND_STATUS_REG, 260 command | CARDBUS_COMMAND_MEM_ENABLE); 261 /* XXX byte order? */ 262 bus_space_read_region_1(ca->ca_memt, bar_memh, 263 cis_ptr, tuples, 256); 264 found++; 265 } 266 command = cardbus_conf_read(cc, cf, tag, 267 CARDBUS_COMMAND_STATUS_REG); 268 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 269 command & ~CARDBUS_COMMAND_MEM_ENABLE); 270 cardbus_conf_write(cc, cf, tag, reg, 0); 271 272 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 273 bar_size); 274 break; 275 276 #ifdef DIAGNOSTIC 277 default: 278 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 279 cardbus_space); 280 #endif 281 } 282 return (!found); 283 } 284 285 static void 286 parse_tuple(u_int8_t *tuple, int len, void *data) 287 { 288 struct cardbus_cis_info *cis = data; 289 char *p; 290 int i, bar_index; 291 292 switch (tuple[0]) { 293 case PCMCIA_CISTPL_MANFID: 294 if (tuple[1] != 5) { 295 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 296 __func__, tuple[1])); 297 break; 298 } 299 cis->manufacturer = tuple[2] | (tuple[3] << 8); 300 cis->product = tuple[4] | (tuple[5] << 8); 301 break; 302 303 case PCMCIA_CISTPL_VERS_1: 304 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 305 i = 0; 306 p = cis->cis1_info_buf + 2; 307 while (i < 308 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 309 cis->cis1_info[i++] = p; 310 while (*p != '\0' && *p != '\xff') 311 p++; 312 if (*p == '\xff') 313 break; 314 p++; 315 } 316 break; 317 318 case PCMCIA_CISTPL_BAR: 319 if (tuple[1] != 6) { 320 DPRINTF(("%s: BAR with short length (%d)\n", 321 __func__, tuple[1])); 322 break; 323 } 324 bar_index = tuple[2] & 7; 325 if (bar_index == 0) { 326 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 327 break; 328 } 329 bar_index--; 330 cis->bar[bar_index].flags = tuple[2]; 331 cis->bar[bar_index].size = 332 (tuple[4] << 0) | 333 (tuple[5] << 8) | 334 (tuple[6] << 16) | 335 (tuple[7] << 24); 336 break; 337 338 case PCMCIA_CISTPL_FUNCID: 339 cis->funcid = tuple[2]; 340 break; 341 342 case PCMCIA_CISTPL_FUNCE: 343 switch (cis->funcid) { 344 case PCMCIA_FUNCTION_SERIAL: 345 if (tuple[1] >= 2 && 346 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */ 347 tuple[2] == 0) { 348 cis->funce.serial.uart_type = tuple[3] & 0x1f; 349 cis->funce.serial.uart_present = 1; 350 } 351 break; 352 353 case PCMCIA_FUNCTION_NETWORK: 354 if (tuple[1] >= 8 && 355 tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 356 if (tuple[3] > 357 sizeof(cis->funce.network.netid)) { 358 DPRINTF(("%s: unknown network id type " 359 "(len = %d)\n", 360 __func__, tuple[3])); 361 } else { 362 cis->funce.network.netid_present = 1; 363 memcpy(cis->funce.network.netid, 364 tuple + 4, tuple[3]); 365 } 366 } 367 break; 368 } 369 break; 370 } 371 } 372 373 /* 374 * int cardbus_attach_card(struct cardbus_softc *sc) 375 * 376 * This function attaches the card on the slot: turns on power, 377 * reads and analyses tuple, sets configuration index. 378 * 379 * This function returns the number of recognised device functions. 380 * If no functions are recognised, return 0. 381 */ 382 int 383 cardbus_attach_card(struct cardbus_softc *sc) 384 { 385 cardbus_chipset_tag_t cc; 386 cardbus_function_tag_t cf; 387 cardbustag_t tag; 388 cardbusreg_t id, class, cis_ptr; 389 cardbusreg_t bhlc; 390 u_int8_t tuple[2048]; 391 int cdstatus; 392 int function, nfunction; 393 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 394 struct device *csc; 395 int no_work_funcs = 0; 396 cardbus_devfunc_t ct; 397 398 cc = sc->sc_cc; 399 cf = sc->sc_cf; 400 401 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 402 403 /* inspect initial voltage */ 404 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 405 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 406 sc->sc_dev.dv_unit)); 407 return (0); 408 } 409 410 /* 411 * XXX use fake function 8 to keep power on during whole 412 * configuration. 413 */ 414 enable_function(sc, cdstatus, 8); 415 function = 0; 416 417 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 418 419 /* 420 * Wait until power comes up. Maxmum 500 ms. 421 */ 422 { 423 int i; 424 425 for (i = 0; i < 5; ++i) { 426 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 427 if (id != 0xffffffff && id != 0) { 428 break; 429 } 430 if (cold) { /* before kernel thread invoked */ 431 delay(100 * 1000); 432 } else { /* thread context */ 433 if (tsleep((void *)sc, PCATCH, "cardbus", 434 hz / 10) != EWOULDBLOCK) { 435 break; 436 } 437 } 438 } 439 if (i == 5) { 440 return (0); 441 } 442 } 443 444 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 445 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 446 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 447 448 for (function = 0; function < nfunction; function++) { 449 struct cardbus_attach_args ca; 450 451 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 452 function); 453 454 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 455 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 456 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 457 458 /* Invalid vendor ID value? */ 459 if (CARDBUS_VENDOR(id) == PCI_VENDOR_INVALID) { 460 continue; 461 } 462 463 DPRINTF(("cardbus_attach_card: " 464 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 465 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 466 467 enable_function(sc, cdstatus, function); 468 469 /* clean up every BAR */ 470 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 471 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 472 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 473 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 474 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 475 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 476 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 477 478 /* set initial latency and cacheline size */ 479 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 480 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 481 function, bhlc)); 482 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 483 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 484 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 485 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 486 487 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 488 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 489 DPRINTF(("0x%08x\n", bhlc)); 490 491 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 492 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 493 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 494 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 495 } 496 497 /* 498 * We need to allocate the ct here, since we might 499 * need it when reading the CIS 500 */ 501 if ((ct = malloc(sizeof(struct cardbus_devfunc), 502 M_DEVBUF, M_NOWAIT)) == NULL) { 503 panic("no room for cardbus_tag"); 504 } 505 506 ct->ct_cc = sc->sc_cc; 507 ct->ct_cf = sc->sc_cf; 508 ct->ct_bus = sc->sc_bus; 509 ct->ct_dev = sc->sc_device; 510 ct->ct_func = function; 511 ct->ct_sc = sc; 512 ct->ct_next = NULL; 513 *previous_next = ct; 514 515 memset(&ca, 0, sizeof(ca)); 516 517 ca.ca_unit = sc->sc_dev.dv_unit; 518 ca.ca_ct = ct; 519 520 ca.ca_iot = sc->sc_iot; 521 ca.ca_memt = sc->sc_memt; 522 ca.ca_dmat = sc->sc_dmat; 523 524 #if rbus 525 ca.ca_rbus_iot = sc->sc_rbus_iot; 526 ca.ca_rbus_memt= sc->sc_rbus_memt; 527 #endif 528 529 ca.ca_tag = tag; 530 ca.ca_bus = sc->sc_bus; 531 ca.ca_device = sc->sc_device; 532 ca.ca_function = function; 533 ca.ca_id = id; 534 ca.ca_class = class; 535 536 ca.ca_intrline = sc->sc_intrline; 537 538 if (cis_ptr != 0) { 539 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 540 printf("cardbus_attach_card: failed to read CIS\n"); 541 } else { 542 #ifdef CARDBUS_DEBUG 543 decode_tuples(tuple, 2048, print_tuple, NULL); 544 #endif 545 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 546 } 547 } 548 549 if ((csc = config_found_sm((void *)sc, &ca, cardbusprint, 550 cardbussubmatch)) == NULL) { 551 /* do not match */ 552 disable_function(sc, function); 553 free(ct, M_DEVBUF); 554 *previous_next = NULL; 555 } else { 556 /* found */ 557 previous_next = &(ct->ct_next); 558 ct->ct_device = csc; 559 ++no_work_funcs; 560 } 561 } 562 /* 563 * XXX power down pseudo function 8 (this will power down the card 564 * if no functions were attached). 565 */ 566 disable_function(sc, 8); 567 568 return (no_work_funcs); 569 } 570 571 static int 572 cardbussubmatch(struct device *parent, struct cfdata *cf, void *aux) 573 { 574 struct cardbus_attach_args *ca = aux; 575 576 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 577 cf->cardbuscf_dev != ca->ca_unit) { 578 return (0); 579 } 580 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 581 cf->cardbuscf_function != ca->ca_function) { 582 return (0); 583 } 584 585 return (config_match(parent, cf, aux)); 586 } 587 588 static int 589 cardbusprint(void *aux, const char *pnp) 590 { 591 struct cardbus_attach_args *ca = aux; 592 char devinfo[256]; 593 int i; 594 595 if (pnp) { 596 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 597 sizeof(devinfo)); 598 for (i = 0; i < 4; i++) { 599 if (ca->ca_cis.cis1_info[i] == NULL) 600 break; 601 if (i) 602 aprint_normal(", "); 603 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 604 } 605 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 606 i ? " " : "", 607 ca->ca_cis.manufacturer, ca->ca_cis.product); 608 aprint_normal(" %s at %s", devinfo, pnp); 609 } 610 aprint_normal(" dev %d function %d", ca->ca_device, ca->ca_function); 611 612 return (UNCONF); 613 } 614 615 /* 616 * void cardbus_detach_card(struct cardbus_softc *sc) 617 * 618 * This function detaches the card on the slot: detach device data 619 * structure and turns off the power. 620 * 621 * This function must not be called under interrupt context. 622 */ 623 void 624 cardbus_detach_card(struct cardbus_softc *sc) 625 { 626 struct cardbus_devfunc *ct, *ct_next, **prev_next; 627 628 prev_next = &(sc->sc_funcs->ct_next); 629 630 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 631 struct device *fndev = ct->ct_device; 632 ct_next = ct->ct_next; 633 634 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 635 fndev->dv_xname)); 636 /* call device detach function */ 637 638 if (0 != config_detach(fndev, 0)) { 639 printf("%s: cannot detach dev %s, function %d\n", 640 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 641 prev_next = &(ct->ct_next); 642 } else { 643 sc->sc_poweron_func &= ~(1 << ct->ct_func); 644 *prev_next = ct->ct_next; 645 free(ct, M_DEVBUF); 646 } 647 } 648 649 sc->sc_poweron_func = 0; 650 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 651 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 652 } 653 654 /* 655 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 656 * Interrupt handler of pccard. 657 * args: 658 * cardbus_chipset_tag_t *cc 659 * int irq: 660 */ 661 void * 662 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 663 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 664 { 665 666 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 667 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 668 } 669 670 /* 671 * void cardbus_intr_disestablish(cc, cf, handler) 672 * Interrupt handler of pccard. 673 * args: 674 * cardbus_chipset_tag_t *cc 675 */ 676 void 677 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 678 void *handler) 679 { 680 681 DPRINTF(("- pccard_intr_disestablish\n")); 682 (*cf->cardbus_intr_disestablish)(cc, handler); 683 } 684 685 /* 686 * XXX this should be merged with cardbus_function_{enable,disable}, 687 * but we don't have a ct when these functions are called. 688 */ 689 static void 690 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 691 { 692 693 if (sc->sc_poweron_func == 0) { 694 /* switch to 3V and/or wait for power to stabilize */ 695 if (cdstatus & CARDBUS_3V_CARD) { 696 /* 697 * sc_poweron_func must be substituted before 698 * entering sleep, in order to avoid turn on 699 * power twice. 700 */ 701 sc->sc_poweron_func |= (1 << function); 702 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 703 } else { 704 /* No cards other than 3.3V cards. */ 705 return; 706 } 707 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 708 } 709 sc->sc_poweron_func |= (1 << function); 710 } 711 712 static void 713 disable_function(struct cardbus_softc *sc, int function) 714 { 715 716 sc->sc_poweron_func &= ~(1 << function); 717 if (sc->sc_poweron_func == 0) { 718 /* power-off because no functions are enabled */ 719 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 720 } 721 } 722 723 /* 724 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 725 * 726 * This function enables a function on a card. When no power is 727 * applied on the card, power will be applied on it. 728 */ 729 int 730 cardbus_function_enable(struct cardbus_softc *sc, int func) 731 { 732 cardbus_chipset_tag_t cc = sc->sc_cc; 733 cardbus_function_tag_t cf = sc->sc_cf; 734 cardbusreg_t command; 735 cardbustag_t tag; 736 737 DPRINTF(("entering cardbus_function_enable... ")); 738 739 /* entering critical area */ 740 741 /* XXX: sc_vold should be used */ 742 enable_function(sc, CARDBUS_3V_CARD, func); 743 744 /* exiting critical area */ 745 746 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 747 748 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 749 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 750 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 751 752 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 753 754 cardbus_free_tag(cc, cf, tag); 755 756 DPRINTF(("%x\n", sc->sc_poweron_func)); 757 758 return (0); 759 } 760 761 /* 762 * int cardbus_function_disable(struct cardbus_softc *, int func) 763 * 764 * This function disable a function on a card. When no functions are 765 * enabled, it turns off the power. 766 */ 767 int 768 cardbus_function_disable(struct cardbus_softc *sc, int func) 769 { 770 771 DPRINTF(("entering cardbus_function_disable... ")); 772 773 disable_function(sc, func); 774 775 return (0); 776 } 777 778 /* 779 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 780 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 781 * cardbusreg_t *value) 782 * 783 * Find the specified PCI capability. 784 */ 785 int 786 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 787 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 788 { 789 cardbusreg_t reg; 790 unsigned int ofs; 791 792 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 793 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 794 return (0); 795 796 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 797 PCI_CAPLISTPTR_REG)); 798 while (ofs != 0) { 799 #ifdef DIAGNOSTIC 800 if ((ofs & 3) || (ofs < 0x40)) 801 panic("cardbus_get_capability"); 802 #endif 803 reg = cardbus_conf_read(cc, cf, tag, ofs); 804 if (PCI_CAPLIST_CAP(reg) == capid) { 805 if (offset) 806 *offset = ofs; 807 if (value) 808 *value = reg; 809 return (1); 810 } 811 ofs = PCI_CAPLIST_NEXT(reg); 812 } 813 814 return (0); 815 } 816 817 /* 818 * below this line, there are some functions for decoding tuples. 819 * They should go out from this file. 820 */ 821 822 static u_int8_t * 823 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 824 825 static int 826 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 827 { 828 u_int8_t *tp = tuple; 829 830 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 831 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 832 return (0); 833 } 834 835 while (NULL != (tp = decode_tuple(tp, func, data))) { 836 if (tuple + buflen < tp) { 837 break; 838 } 839 } 840 841 return (1); 842 } 843 844 static u_int8_t * 845 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 846 { 847 u_int8_t type; 848 u_int8_t len; 849 850 type = tuple[0]; 851 len = tuple[1] + 2; 852 853 (*func)(tuple, len, data); 854 855 if (type == PCMCIA_CISTPL_END) { 856 return (NULL); 857 } 858 859 return (tuple + len); 860 } 861 862 /* 863 * XXX: this is another reason why this code should be shared with PCI. 864 */ 865 int 866 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 867 int *oldstate) 868 { 869 cardbus_chipset_tag_t cc = ct->ct_cc; 870 cardbus_function_tag_t cf = ct->ct_cf; 871 872 int offset; 873 pcireg_t value, cap, now; 874 875 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 876 &value)) 877 return EOPNOTSUPP; 878 879 cap = value >> 16; 880 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 881 now = value & PCI_PMCSR_STATE_MASK; 882 value &= ~PCI_PMCSR_STATE_MASK; 883 if (oldstate) { 884 switch (now) { 885 case PCI_PMCSR_STATE_D0: 886 *oldstate = PCI_PWR_D0; 887 break; 888 case PCI_PMCSR_STATE_D1: 889 *oldstate = PCI_PWR_D1; 890 break; 891 case PCI_PMCSR_STATE_D2: 892 *oldstate = PCI_PWR_D2; 893 break; 894 case PCI_PMCSR_STATE_D3: 895 *oldstate = PCI_PWR_D3; 896 break; 897 default: 898 return EINVAL; 899 } 900 } 901 if (newstate == NULL) 902 return 0; 903 switch (*newstate) { 904 case PCI_PWR_D0: 905 if (now == PCI_PMCSR_STATE_D0) 906 return 0; 907 value |= PCI_PMCSR_STATE_D0; 908 break; 909 case PCI_PWR_D1: 910 if (now == PCI_PMCSR_STATE_D1) 911 return 0; 912 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 913 return EINVAL; 914 if (!(cap & PCI_PMCR_D1SUPP)) 915 return EOPNOTSUPP; 916 value |= PCI_PMCSR_STATE_D1; 917 break; 918 case PCI_PWR_D2: 919 if (now == PCI_PMCSR_STATE_D2) 920 return 0; 921 if (now == PCI_PMCSR_STATE_D3) 922 return EINVAL; 923 if (!(cap & PCI_PMCR_D2SUPP)) 924 return EOPNOTSUPP; 925 value |= PCI_PMCSR_STATE_D2; 926 break; 927 case PCI_PWR_D3: 928 if (now == PCI_PMCSR_STATE_D3) 929 return 0; 930 value |= PCI_PMCSR_STATE_D3; 931 break; 932 default: 933 return EINVAL; 934 } 935 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 936 DELAY(1000); 937 938 return 0; 939 } 940 941 int 942 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 943 int newpwr) 944 { 945 int oldpwr, error; 946 947 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 948 return error; 949 950 if (oldpwr == newpwr) 951 return 0; 952 953 if (oldpwr > newpwr) { 954 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 955 return 0; 956 } 957 958 /* oldpwr < newpwr */ 959 switch (oldpwr) { 960 case PCI_PWR_D3: 961 /* 962 * XXX: This is because none of the devices do 963 * the necessary song and dance for now to wakeup 964 * Once this 965 */ 966 printf("%s: cannot wake up from power state D%d\n", 967 dvname, oldpwr); 968 return EINVAL; 969 default: 970 printf("%s: waking up from power state D%d\n", 971 dvname, oldpwr); 972 return 0; 973 } 974 } 975 976 977 #ifdef CARDBUS_DEBUG 978 static const char *tuple_name(int); 979 static const char *tuple_names[] = { 980 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 981 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 982 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 983 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 984 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 985 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 986 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 987 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 988 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 989 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 990 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 991 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 992 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 993 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 994 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 995 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 996 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 997 "DATE", "BATTERY", "ORG" 998 }; 999 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 1000 1001 static const char * 1002 tuple_name(int type) 1003 { 1004 1005 if (0 <= type && type < NAME_LEN(tuple_names)) { 1006 return (tuple_names[type]); 1007 } else if (type == 0xff) { 1008 return ("END"); 1009 } else { 1010 return ("Reserved"); 1011 } 1012 } 1013 1014 static void 1015 print_tuple(u_int8_t *tuple, int len, void *data) 1016 { 1017 int i; 1018 1019 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1020 1021 for (i = 0; i < len; ++i) { 1022 if (i % 16 == 0) { 1023 printf(" 0x%2x:", i); 1024 } 1025 printf(" %x", tuple[i]); 1026 if (i % 16 == 15) { 1027 printf("\n"); 1028 } 1029 } 1030 if (i % 16 != 0) { 1031 printf("\n"); 1032 } 1033 } 1034 #endif 1035
Indexes created Mon Sep 29 21:09:56 GMT 2025