cardbus.c revision 1.41
1 /* $NetBSD: cardbus.c,v 1.41 2002/06/01 23:50:56 lukem 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 1.41 2002/06/01 23:50:56 lukem 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/cardbus/cardbusdevs.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 struct cfattach cardbus_ca = { 91 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 92 }; 93 94 #ifndef __NetBSD_Version__ 95 struct cfdriver cardbus_cd = { 96 NULL, "cardbus", DV_DULL 97 }; 98 #endif 99 100 101 STATIC int 102 cardbusmatch(struct device *parent, struct cfdata *cf, void *aux) 103 { 104 struct cbslot_attach_args *cba = aux; 105 106 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 107 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 108 cba->cba_busname, cf->cf_driver->cd_name)); 109 return (0); 110 } 111 112 return (1); 113 } 114 115 STATIC void 116 cardbusattach(struct device *parent, struct device *self, void *aux) 117 { 118 struct cardbus_softc *sc = (void *)self; 119 struct cbslot_attach_args *cba = aux; 120 121 sc->sc_bus = cba->cba_bus; 122 sc->sc_device = 0; 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 device %d", sc->sc_bus, sc->sc_device); 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 sc->sc_funcs = NULL; 145 } 146 147 static int 148 cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr, 149 u_int8_t *tuples, size_t len) 150 { 151 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 152 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 153 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 154 cardbustag_t tag = ca->ca_tag; 155 cardbusreg_t command; 156 bus_space_tag_t bar_tag; 157 bus_space_handle_t bar_memh; 158 bus_size_t bar_size; 159 bus_addr_t bar_addr; 160 cardbusreg_t reg; 161 int found = 0; 162 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 163 int i, j; 164 165 memset(tuples, 0, len); 166 167 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 168 169 switch (cardbus_space) { 170 case CARDBUS_CIS_ASI_TUPLE: 171 DPRINTF(("%s: reading CIS data from configuration space\n", 172 sc->sc_dev.dv_xname)); 173 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 174 u_int32_t e = (*cf->cardbus_conf_read)(cc, tag, i); 175 tuples[j] = 0xff & e; 176 e >>= 8; 177 tuples[j + 1] = 0xff & e; 178 e >>= 8; 179 tuples[j + 2] = 0xff & e; 180 e >>= 8; 181 tuples[j + 3] = 0xff & e; 182 j += 4; 183 } 184 found++; 185 break; 186 187 case CARDBUS_CIS_ASI_BAR0: 188 case CARDBUS_CIS_ASI_BAR1: 189 case CARDBUS_CIS_ASI_BAR2: 190 case CARDBUS_CIS_ASI_BAR3: 191 case CARDBUS_CIS_ASI_BAR4: 192 case CARDBUS_CIS_ASI_BAR5: 193 case CARDBUS_CIS_ASI_ROM: 194 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 195 reg = CARDBUS_ROM_REG; 196 DPRINTF(("%s: reading CIS data from ROM\n", 197 sc->sc_dev.dv_xname)); 198 } else { 199 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 200 DPRINTF(("%s: reading CIS data from BAR%d\n", 201 sc->sc_dev.dv_xname, cardbus_space - 1)); 202 } 203 204 /* 205 * XXX zero register so mapreg_map doesn't get confused by old 206 * contents. 207 */ 208 cardbus_conf_write(cc, cf, tag, reg, 0); 209 if (Cardbus_mapreg_map(ca->ca_ct, reg, 210 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 211 0, &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 212 printf("%s: failed to map memory\n", 213 sc->sc_dev.dv_xname); 214 return (1); 215 } 216 217 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 218 cardbusreg_t exrom; 219 int save; 220 struct cardbus_rom_image_head rom_image; 221 struct cardbus_rom_image *p; 222 223 save = splhigh(); 224 /* enable rom address decoder */ 225 exrom = cardbus_conf_read(cc, cf, tag, reg); 226 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 227 228 command = cardbus_conf_read(cc, cf, tag, 229 CARDBUS_COMMAND_STATUS_REG); 230 cardbus_conf_write(cc, cf, tag, 231 CARDBUS_COMMAND_STATUS_REG, 232 command | CARDBUS_COMMAND_MEM_ENABLE); 233 234 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 235 &rom_image)) 236 goto out; 237 238 SIMPLEQ_FOREACH(p, &rom_image, next) { 239 if (p->rom_image == 240 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 241 bus_space_read_region_1(p->romt, 242 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 243 tuples, 256); 244 found++; 245 } 246 break; 247 } 248 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 249 SIMPLEQ_REMOVE_HEAD(&rom_image, next); 250 free(p, M_DEVBUF); 251 } 252 out: 253 exrom = cardbus_conf_read(cc, cf, tag, reg); 254 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 255 splx(save); 256 } else { 257 command = cardbus_conf_read(cc, cf, tag, 258 CARDBUS_COMMAND_STATUS_REG); 259 cardbus_conf_write(cc, cf, tag, 260 CARDBUS_COMMAND_STATUS_REG, 261 command | CARDBUS_COMMAND_MEM_ENABLE); 262 /* XXX byte order? */ 263 bus_space_read_region_1(ca->ca_memt, bar_memh, 264 cis_ptr, tuples, 256); 265 found++; 266 } 267 command = cardbus_conf_read(cc, cf, tag, 268 CARDBUS_COMMAND_STATUS_REG); 269 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 270 command & ~CARDBUS_COMMAND_MEM_ENABLE); 271 cardbus_conf_write(cc, cf, tag, reg, 0); 272 273 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 274 bar_size); 275 break; 276 277 #ifdef DIAGNOSTIC 278 default: 279 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 280 cardbus_space); 281 #endif 282 } 283 return (!found); 284 } 285 286 static void 287 parse_tuple(u_int8_t *tuple, int len, void *data) 288 { 289 struct cardbus_cis_info *cis = data; 290 char *p; 291 int i, bar_index; 292 293 switch (tuple[0]) { 294 case PCMCIA_CISTPL_MANFID: 295 if (tuple[1] != 5) { 296 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 297 __func__, tuple[1])); 298 break; 299 } 300 cis->manufacturer = tuple[2] | (tuple[3] << 8); 301 cis->product = tuple[4] | (tuple[5] << 8); 302 break; 303 304 case PCMCIA_CISTPL_VERS_1: 305 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 306 i = 0; 307 p = cis->cis1_info_buf + 2; 308 while (i < 309 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 310 cis->cis1_info[i++] = p; 311 while (*p != '\0' && *p != '\xff') 312 p++; 313 if (*p == '\xff') 314 break; 315 p++; 316 } 317 break; 318 319 case PCMCIA_CISTPL_BAR: 320 if (tuple[1] != 6) { 321 DPRINTF(("%s: BAR with short length (%d)\n", 322 __func__, tuple[1])); 323 break; 324 } 325 bar_index = tuple[2] & 7; 326 if (bar_index == 0) { 327 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 328 break; 329 } 330 bar_index--; 331 cis->bar[bar_index].flags = tuple[2]; 332 cis->bar[bar_index].size = 333 (tuple[4] << 0) | 334 (tuple[5] << 8) | 335 (tuple[6] << 16) | 336 (tuple[7] << 24); 337 break; 338 339 case PCMCIA_CISTPL_FUNCID: 340 cis->funcid = tuple[2]; 341 break; 342 343 case PCMCIA_CISTPL_FUNCE: 344 switch (cis->funcid) { 345 case PCMCIA_FUNCTION_SERIAL: 346 if (tuple[1] >= 2 && 347 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */ 348 tuple[2] == 0) { 349 cis->funce.serial.uart_type = tuple[3] & 0x1f; 350 cis->funce.serial.uart_present = 1; 351 } 352 break; 353 354 case PCMCIA_FUNCTION_NETWORK: 355 if (tuple[1] >= 8 && 356 tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 357 if (tuple[3] > 358 sizeof(cis->funce.network.netid)) { 359 DPRINTF(("%s: unknown network id type " 360 "(len = %d)\n", 361 __func__, tuple[3])); 362 } else { 363 cis->funce.network.netid_present = 1; 364 memcpy(cis->funce.network.netid, 365 tuple + 4, tuple[3]); 366 } 367 } 368 break; 369 } 370 break; 371 } 372 } 373 374 /* 375 * int cardbus_attach_card(struct cardbus_softc *sc) 376 * 377 * This function attaches the card on the slot: turns on power, 378 * reads and analyses tuple, sets configuration index. 379 * 380 * This function returns the number of recognised device functions. 381 * If no functions are recognised, return 0. 382 */ 383 int 384 cardbus_attach_card(struct cardbus_softc *sc) 385 { 386 cardbus_chipset_tag_t cc; 387 cardbus_function_tag_t cf; 388 cardbustag_t tag; 389 cardbusreg_t id, class, cis_ptr; 390 cardbusreg_t bhlc; 391 u_int8_t tuple[2048]; 392 int cdstatus; 393 int function, nfunction; 394 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 395 struct device *csc; 396 int no_work_funcs = 0; 397 cardbus_devfunc_t ct; 398 399 cc = sc->sc_cc; 400 cf = sc->sc_cf; 401 402 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 403 404 /* inspect initial voltage */ 405 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 406 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 407 sc->sc_dev.dv_unit)); 408 return (0); 409 } 410 411 /* 412 * XXX use fake function 8 to keep power on during whole 413 * configuration. 414 */ 415 enable_function(sc, cdstatus, 8); 416 function = 0; 417 418 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 419 420 /* 421 * Wait until power comes up. Maxmum 500 ms. 422 */ 423 { 424 int i; 425 426 for (i = 0; i < 5; ++i) { 427 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 428 if (id != 0xffffffff && id != 0) { 429 break; 430 } 431 if (cold) { /* before kernel thread invoked */ 432 delay(100 * 1000); 433 } else { /* thread context */ 434 if (tsleep((void *)sc, PCATCH, "cardbus", 435 hz / 10) != EWOULDBLOCK) { 436 break; 437 } 438 } 439 } 440 if (i == 5) { 441 return (0); 442 } 443 } 444 445 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 446 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 447 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 448 449 for (function = 0; function < nfunction; function++) { 450 struct cardbus_attach_args ca; 451 452 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 453 function); 454 455 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 456 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 457 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 458 459 /* Invalid vendor ID value? */ 460 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 461 continue; 462 } 463 464 DPRINTF(("cardbus_attach_card: " 465 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 466 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 467 468 enable_function(sc, cdstatus, function); 469 470 /* clean up every BAR */ 471 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 472 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 473 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 474 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 475 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 476 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 477 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 478 479 /* set initial latency and cacheline size */ 480 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 481 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 482 function, bhlc)); 483 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 484 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 485 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 486 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 487 488 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 489 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 490 DPRINTF(("0x%08x\n", bhlc)); 491 492 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 493 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 494 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 495 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 496 } 497 498 /* 499 * We need to allocate the ct here, since we might 500 * need it when reading the CIS 501 */ 502 if ((ct = malloc(sizeof(struct cardbus_devfunc), 503 M_DEVBUF, M_NOWAIT)) == NULL) { 504 panic("no room for cardbus_tag"); 505 } 506 507 ct->ct_cc = sc->sc_cc; 508 ct->ct_cf = sc->sc_cf; 509 ct->ct_bus = sc->sc_bus; 510 ct->ct_dev = sc->sc_device; 511 ct->ct_func = function; 512 ct->ct_sc = sc; 513 ct->ct_next = NULL; 514 *previous_next = ct; 515 516 memset(&ca, 0, sizeof(ca)); 517 518 ca.ca_unit = sc->sc_dev.dv_unit; 519 ca.ca_ct = ct; 520 521 ca.ca_iot = sc->sc_iot; 522 ca.ca_memt = sc->sc_memt; 523 ca.ca_dmat = sc->sc_dmat; 524 525 #if rbus 526 ca.ca_rbus_iot = sc->sc_rbus_iot; 527 ca.ca_rbus_memt= sc->sc_rbus_memt; 528 #endif 529 530 ca.ca_tag = tag; 531 ca.ca_bus = sc->sc_bus; 532 ca.ca_device = sc->sc_device; 533 ca.ca_function = function; 534 ca.ca_id = id; 535 ca.ca_class = class; 536 537 ca.ca_intrline = sc->sc_intrline; 538 539 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 if ((csc = config_found_sm((void *)sc, &ca, cardbusprint, 549 cardbussubmatch)) == NULL) { 550 /* do not match */ 551 disable_function(sc, function); 552 free(ct, M_DEVBUF); 553 *previous_next = NULL; 554 } else { 555 /* found */ 556 previous_next = &(ct->ct_next); 557 ct->ct_device = csc; 558 ++no_work_funcs; 559 } 560 } 561 /* 562 * XXX power down pseudo function 8 (this will power down the card 563 * if no functions were attached). 564 */ 565 disable_function(sc, 8); 566 567 return (no_work_funcs); 568 } 569 570 static int 571 cardbussubmatch(struct device *parent, struct cfdata *cf, void *aux) 572 { 573 struct cardbus_attach_args *ca = aux; 574 575 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 576 cf->cardbuscf_dev != ca->ca_unit) { 577 return (0); 578 } 579 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 580 cf->cardbuscf_function != ca->ca_function) { 581 return (0); 582 } 583 584 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 585 } 586 587 static int 588 cardbusprint(void *aux, const char *pnp) 589 { 590 struct cardbus_attach_args *ca = aux; 591 char devinfo[256]; 592 int i; 593 594 if (pnp) { 595 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 596 for (i = 0; i < 4; i++) { 597 if (ca->ca_cis.cis1_info[i] == NULL) 598 break; 599 if (i) 600 printf(", "); 601 printf("%s", ca->ca_cis.cis1_info[i]); 602 } 603 if (bootverbose) { 604 if (i) 605 printf(" "); 606 printf("(manufacturer 0x%x, product 0x%x)", 607 ca->ca_cis.manufacturer, ca->ca_cis.product); 608 } 609 printf(" %s at %s", devinfo, pnp); 610 } 611 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 612 613 return (UNCONF); 614 } 615 616 /* 617 * void cardbus_detach_card(struct cardbus_softc *sc) 618 * 619 * This function detaches the card on the slot: detach device data 620 * structure and turns off the power. 621 * 622 * This function must not be called under interrupt context. 623 */ 624 void 625 cardbus_detach_card(struct cardbus_softc *sc) 626 { 627 struct cardbus_devfunc *ct, *ct_next, **prev_next; 628 629 prev_next = &(sc->sc_funcs->ct_next); 630 631 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 632 struct device *fndev = ct->ct_device; 633 ct_next = ct->ct_next; 634 635 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 636 fndev->dv_xname)); 637 /* call device detach function */ 638 639 if (0 != config_detach(fndev, 0)) { 640 printf("%s: cannot detach dev %s, function %d\n", 641 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 642 prev_next = &(ct->ct_next); 643 } else { 644 sc->sc_poweron_func &= ~(1 << ct->ct_func); 645 *prev_next = ct->ct_next; 646 free(ct, M_DEVBUF); 647 } 648 } 649 650 sc->sc_poweron_func = 0; 651 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 652 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 653 } 654 655 /* 656 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 657 * Interrupt handler of pccard. 658 * args: 659 * cardbus_chipset_tag_t *cc 660 * int irq: 661 */ 662 void * 663 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 664 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 665 { 666 667 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 668 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 669 } 670 671 /* 672 * void cardbus_intr_disestablish(cc, cf, handler) 673 * Interrupt handler of pccard. 674 * args: 675 * cardbus_chipset_tag_t *cc 676 */ 677 void 678 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 679 void *handler) 680 { 681 682 DPRINTF(("- pccard_intr_disestablish\n")); 683 (*cf->cardbus_intr_disestablish)(cc, handler); 684 } 685 686 /* 687 * XXX this should be merged with cardbus_function_{enable,disable}, 688 * but we don't have a ct when these functions are called. 689 */ 690 static void 691 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 692 { 693 694 if (sc->sc_poweron_func == 0) { 695 /* switch to 3V and/or wait for power to stabilize */ 696 if (cdstatus & CARDBUS_3V_CARD) { 697 /* 698 * sc_poweron_func must be substituted before 699 * entering sleep, in order to avoid turn on 700 * power twice. 701 */ 702 sc->sc_poweron_func |= (1 << function); 703 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 704 } else { 705 /* No cards other than 3.3V cards. */ 706 return; 707 } 708 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 709 } 710 sc->sc_poweron_func |= (1 << function); 711 } 712 713 static void 714 disable_function(struct cardbus_softc *sc, int function) 715 { 716 717 sc->sc_poweron_func &= ~(1 << function); 718 if (sc->sc_poweron_func == 0) { 719 /* power-off because no functions are enabled */ 720 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 721 } 722 } 723 724 /* 725 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 726 * 727 * This function enables a function on a card. When no power is 728 * applied on the card, power will be applied on it. 729 */ 730 int 731 cardbus_function_enable(struct cardbus_softc *sc, int func) 732 { 733 cardbus_chipset_tag_t cc = sc->sc_cc; 734 cardbus_function_tag_t cf = sc->sc_cf; 735 cardbusreg_t command; 736 cardbustag_t tag; 737 738 DPRINTF(("entering cardbus_function_enable... ")); 739 740 /* entering critical area */ 741 742 /* XXX: sc_vold should be used */ 743 enable_function(sc, CARDBUS_3V_CARD, func); 744 745 /* exiting critical area */ 746 747 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 748 749 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 750 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 751 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 752 753 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 754 755 cardbus_free_tag(cc, cf, tag); 756 757 DPRINTF(("%x\n", sc->sc_poweron_func)); 758 759 return (0); 760 } 761 762 /* 763 * int cardbus_function_disable(struct cardbus_softc *, int func) 764 * 765 * This function disable a function on a card. When no functions are 766 * enabled, it turns off the power. 767 */ 768 int 769 cardbus_function_disable(struct cardbus_softc *sc, int func) 770 { 771 772 DPRINTF(("entering cardbus_function_disable... ")); 773 774 disable_function(sc, func); 775 776 return (0); 777 } 778 779 /* 780 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 781 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 782 * cardbusreg_t *value) 783 * 784 * Find the specified PCI capability. 785 */ 786 int 787 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 788 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 789 { 790 cardbusreg_t reg; 791 unsigned int ofs; 792 793 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 794 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 795 return (0); 796 797 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 798 PCI_CAPLISTPTR_REG)); 799 while (ofs != 0) { 800 #ifdef DIAGNOSTIC 801 if ((ofs & 3) || (ofs < 0x40)) 802 panic("cardbus_get_capability"); 803 #endif 804 reg = cardbus_conf_read(cc, cf, tag, ofs); 805 if (PCI_CAPLIST_CAP(reg) == capid) { 806 if (offset) 807 *offset = ofs; 808 if (value) 809 *value = reg; 810 return (1); 811 } 812 ofs = PCI_CAPLIST_NEXT(reg); 813 } 814 815 return (0); 816 } 817 818 /* 819 * below this line, there are some functions for decoding tuples. 820 * They should go out from this file. 821 */ 822 823 static u_int8_t * 824 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 825 826 static int 827 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 828 { 829 u_int8_t *tp = tuple; 830 831 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 832 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 833 return (0); 834 } 835 836 while (NULL != (tp = decode_tuple(tp, func, data))) { 837 if (tuple + buflen < tp) { 838 break; 839 } 840 } 841 842 return (1); 843 } 844 845 static u_int8_t * 846 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 847 { 848 u_int8_t type; 849 u_int8_t len; 850 851 type = tuple[0]; 852 len = tuple[1] + 2; 853 854 (*func)(tuple, len, data); 855 856 if (type == PCMCIA_CISTPL_END) { 857 return (NULL); 858 } 859 860 return (tuple + len); 861 } 862 863 #ifdef CARDBUS_DEBUG 864 static const char *tuple_name(int); 865 static const char *tuple_names[] = { 866 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 867 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 868 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 869 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 870 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 871 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 872 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 873 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 874 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 875 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 876 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 877 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 878 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 879 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 880 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 881 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 882 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 883 "DATE", "BATTERY", "ORG" 884 }; 885 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 886 887 static const char * 888 tuple_name(int type) 889 { 890 891 if (0 <= type && type < NAME_LEN(tuple_names)) { 892 return (tuple_names[type]); 893 } else if (type == 0xff) { 894 return ("END"); 895 } else { 896 return ("Reserved"); 897 } 898 } 899 900 static void 901 print_tuple(u_int8_t *tuple, int len, void *data) 902 { 903 int i; 904 905 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 906 907 for (i = 0; i < len; ++i) { 908 if (i % 16 == 0) { 909 printf(" 0x%2x:", i); 910 } 911 printf(" %x", tuple[i]); 912 if (i % 16 == 15) { 913 printf("\n"); 914 } 915 } 916 if (i % 16 != 0) { 917 printf("\n"); 918 } 919 } 920 #endif 921
Indexes created Mon Sep 29 13:09:55 GMT 2025