cardbus.c revision 1.32
1 /* $NetBSD: cardbus.c,v 1.32 2001/04/25 09:29:36 haya 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 "opt_cardbus.h" 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/kernel.h> 43 #include <sys/syslog.h> 44 #include <sys/proc.h> 45 46 #include <machine/bus.h> 47 48 #include <dev/cardbus/cardbusvar.h> 49 #include <dev/cardbus/cardbusdevs.h> 50 51 #include <dev/cardbus/cardbus_exrom.h> 52 53 #include <dev/pci/pcivar.h> /* XXX */ 54 #include <dev/pci/pcireg.h> /* XXX */ 55 56 #include <dev/pcmcia/pcmciareg.h> 57 58 #if defined CARDBUS_DEBUG 59 #define STATIC 60 #define DPRINTF(a) printf a 61 #else 62 #define STATIC static 63 #define DPRINTF(a) 64 #endif 65 66 67 STATIC void cardbusattach(struct device *, struct device *, void *); 68 int cardbus_attach_card(struct cardbus_softc *); 69 70 STATIC int cardbusmatch(struct device *, struct cfdata *, void *); 71 static int cardbussubmatch(struct device *, struct cfdata *, void *); 72 static int cardbusprint(void *, const char *); 73 74 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 75 76 static int decode_tuples(u_int8_t *, int, tuple_decode_func, void*); 77 #ifdef CARDBUS_DEBUG 78 static void print_tuple(u_int8_t*, int, void*); 79 #endif 80 81 static int cardbus_read_tuples(struct cardbus_attach_args *, 82 cardbusreg_t, u_int8_t *, size_t); 83 84 static void enable_function(struct cardbus_softc *, int, int); 85 static void disable_function(struct cardbus_softc *, int); 86 87 struct cfattach cardbus_ca = { 88 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 89 }; 90 91 #ifndef __NetBSD_Version__ 92 struct cfdriver cardbus_cd = { 93 NULL, "cardbus", DV_DULL 94 }; 95 #endif 96 97 98 STATIC int 99 cardbusmatch(struct device *parent, struct cfdata *cf, void *aux) 100 { 101 struct cbslot_attach_args *cba = aux; 102 103 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 104 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 105 cba->cba_busname, cf->cf_driver->cd_name)); 106 return (0); 107 } 108 109 return (1); 110 } 111 112 STATIC void 113 cardbusattach(struct device *parent, struct device *self, void *aux) 114 { 115 struct cardbus_softc *sc = (void *)self; 116 struct cbslot_attach_args *cba = aux; 117 118 sc->sc_bus = cba->cba_bus; 119 sc->sc_device = 0; 120 sc->sc_intrline = cba->cba_intrline; 121 sc->sc_cacheline = cba->cba_cacheline; 122 sc->sc_lattimer = cba->cba_lattimer; 123 124 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 125 printf(" cacheline 0x%x, lattimer 0x%x\n", sc->sc_cacheline, 126 sc->sc_lattimer); 127 128 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 129 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 130 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 131 sc->sc_cc = cba->cba_cc; 132 sc->sc_cf = cba->cba_cf; 133 134 #if rbus 135 sc->sc_rbus_iot = cba->cba_rbus_iot; 136 sc->sc_rbus_memt = cba->cba_rbus_memt; 137 #endif 138 139 sc->sc_funcs = NULL; 140 } 141 142 static int 143 cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr, 144 u_int8_t *tuples, size_t len) 145 { 146 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 147 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 148 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 149 cardbustag_t tag = ca->ca_tag; 150 cardbusreg_t command; 151 bus_space_tag_t bar_tag; 152 bus_space_handle_t bar_memh; 153 bus_size_t bar_size; 154 bus_addr_t bar_addr; 155 cardbusreg_t reg; 156 int found = 0; 157 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 158 int i, j; 159 160 memset(tuples, 0, len); 161 162 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 163 164 switch (cardbus_space) { 165 case CARDBUS_CIS_ASI_TUPLE: 166 DPRINTF(("%s: reading CIS data from configuration space\n", 167 sc->sc_dev.dv_xname)); 168 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 169 u_int32_t e = (*cf->cardbus_conf_read)(cc, tag, i); 170 tuples[j] = 0xff & e; 171 e >>= 8; 172 tuples[j + 1] = 0xff & e; 173 e >>= 8; 174 tuples[j + 2] = 0xff & e; 175 e >>= 8; 176 tuples[j + 3] = 0xff & e; 177 j += 4; 178 } 179 found++; 180 break; 181 182 case CARDBUS_CIS_ASI_BAR0: 183 case CARDBUS_CIS_ASI_BAR1: 184 case CARDBUS_CIS_ASI_BAR2: 185 case CARDBUS_CIS_ASI_BAR3: 186 case CARDBUS_CIS_ASI_BAR4: 187 case CARDBUS_CIS_ASI_BAR5: 188 case CARDBUS_CIS_ASI_ROM: 189 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 190 reg = CARDBUS_ROM_REG; 191 DPRINTF(("%s: reading CIS data from ROM\n", 192 sc->sc_dev.dv_xname)); 193 } else { 194 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 195 DPRINTF(("%s: reading CIS data from BAR%d\n", 196 sc->sc_dev.dv_xname, cardbus_space - 1)); 197 } 198 199 /* 200 * XXX zero register so mapreg_map doesn't get confused by old 201 * contents. 202 */ 203 cardbus_conf_write(cc, cf, tag, reg, 0); 204 if (Cardbus_mapreg_map(ca->ca_ct, reg, 205 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 206 0, &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 207 printf("%s: failed to map memory\n", 208 sc->sc_dev.dv_xname); 209 return (1); 210 } 211 212 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 213 cardbusreg_t exrom; 214 int save; 215 struct cardbus_rom_image_head rom_image; 216 struct cardbus_rom_image *p; 217 218 save = splhigh(); 219 /* enable rom address decoder */ 220 exrom = cardbus_conf_read(cc, cf, tag, reg); 221 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 222 223 command = cardbus_conf_read(cc, cf, tag, 224 CARDBUS_COMMAND_STATUS_REG); 225 cardbus_conf_write(cc, cf, tag, 226 CARDBUS_COMMAND_STATUS_REG, 227 command | CARDBUS_COMMAND_MEM_ENABLE); 228 229 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 230 &rom_image)) 231 goto out; 232 233 for (p = SIMPLEQ_FIRST(&rom_image); p != NULL; 234 p = SIMPLEQ_NEXT(p, next)) { 235 if (p->rom_image == 236 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 237 bus_space_read_region_1(p->romt, 238 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 239 tuples, 256); 240 found++; 241 } 242 break; 243 } 244 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 245 SIMPLEQ_REMOVE_HEAD(&rom_image, p, next); 246 free(p, M_DEVBUF); 247 } 248 out: 249 exrom = cardbus_conf_read(cc, cf, tag, reg); 250 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 251 splx(save); 252 } else { 253 command = cardbus_conf_read(cc, cf, tag, 254 CARDBUS_COMMAND_STATUS_REG); 255 cardbus_conf_write(cc, cf, tag, 256 CARDBUS_COMMAND_STATUS_REG, 257 command | CARDBUS_COMMAND_MEM_ENABLE); 258 /* XXX byte order? */ 259 bus_space_read_region_1(ca->ca_memt, bar_memh, 260 cis_ptr, tuples, 256); 261 found++; 262 } 263 command = cardbus_conf_read(cc, cf, tag, 264 CARDBUS_COMMAND_STATUS_REG); 265 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 266 command & ~CARDBUS_COMMAND_MEM_ENABLE); 267 cardbus_conf_write(cc, cf, tag, reg, 0); 268 269 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 270 bar_size); 271 break; 272 273 #ifdef DIAGNOSTIC 274 default: 275 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 276 cardbus_space); 277 #endif 278 } 279 return (!found); 280 } 281 282 static void 283 parse_tuple(u_int8_t *tuple, int len, void *data) 284 { 285 #ifdef CARDBUS_DEBUG 286 static const char __func__[] = "parse_tuple"; 287 #endif 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 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 445 446 for (function = 0; function < nfunction; function++) { 447 struct cardbus_attach_args ca; 448 449 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 450 function); 451 452 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 453 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 454 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 455 456 /* Invalid vendor ID value? */ 457 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 458 continue; 459 } 460 461 DPRINTF(("cardbus_attach_card: " 462 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 463 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 464 465 enable_function(sc, cdstatus, function); 466 467 /* clean up every BAR */ 468 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 469 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 470 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 471 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 472 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 473 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 474 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 475 476 /* set initial latency and cacheline size */ 477 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 478 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 479 function, bhlc)); 480 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 481 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 482 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 483 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 484 485 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 486 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 487 DPRINTF(("0x%08x\n", bhlc)); 488 489 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 490 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 491 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 492 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 493 } 494 495 /* 496 * We need to allocate the ct here, since we might 497 * need it when reading the CIS 498 */ 499 if ((ct = malloc(sizeof(struct cardbus_devfunc), 500 M_DEVBUF, M_NOWAIT)) == NULL) { 501 panic("no room for cardbus_tag"); 502 } 503 504 ct->ct_cc = sc->sc_cc; 505 ct->ct_cf = sc->sc_cf; 506 ct->ct_bus = sc->sc_bus; 507 ct->ct_dev = sc->sc_device; 508 ct->ct_func = function; 509 ct->ct_sc = sc; 510 ct->ct_next = NULL; 511 *previous_next = ct; 512 513 memset(&ca, 0, sizeof(ca)); 514 515 ca.ca_unit = sc->sc_dev.dv_unit; 516 ca.ca_ct = ct; 517 518 ca.ca_iot = sc->sc_iot; 519 ca.ca_memt = sc->sc_memt; 520 ca.ca_dmat = sc->sc_dmat; 521 522 ca.ca_tag = tag; 523 ca.ca_device = sc->sc_device; 524 ca.ca_function = function; 525 ca.ca_id = id; 526 ca.ca_class = class; 527 528 ca.ca_intrline = sc->sc_intrline; 529 530 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 531 printf("cardbus_attach_card: failed to read CIS\n"); 532 } else { 533 #ifdef CARDBUS_DEBUG 534 decode_tuples(tuple, 2048, print_tuple, NULL); 535 #endif 536 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 537 } 538 539 if ((csc = config_found_sm((void *)sc, &ca, cardbusprint, 540 cardbussubmatch)) == NULL) { 541 /* do not match */ 542 disable_function(sc, function); 543 free(ct, M_DEVBUF); 544 *previous_next = NULL; 545 } else { 546 /* found */ 547 previous_next = &(ct->ct_next); 548 ct->ct_device = csc; 549 ++no_work_funcs; 550 } 551 } 552 /* 553 * XXX power down pseudo function 8 (this will power down the card 554 * if no functions were attached). 555 */ 556 disable_function(sc, 8); 557 558 return (no_work_funcs); 559 } 560 561 static int 562 cardbussubmatch(struct device *parent, struct cfdata *cf, void *aux) 563 { 564 struct cardbus_attach_args *ca = aux; 565 566 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 567 cf->cardbuscf_dev != ca->ca_unit) { 568 return (0); 569 } 570 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 571 cf->cardbuscf_function != ca->ca_function) { 572 return (0); 573 } 574 575 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 576 } 577 578 static int 579 cardbusprint(void *aux, const char *pnp) 580 { 581 struct cardbus_attach_args *ca = aux; 582 char devinfo[256]; 583 int i; 584 585 if (pnp) { 586 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 587 for (i = 0; i < 4; i++) { 588 if (ca->ca_cis.cis1_info[i] == NULL) 589 break; 590 if (i) 591 printf(", "); 592 printf("%s", ca->ca_cis.cis1_info[i]); 593 } 594 if (i) 595 printf(" "); 596 printf("(manufacturer 0x%x, product 0x%x)", 597 ca->ca_cis.manufacturer, ca->ca_cis.product); 598 printf(" %s at %s", devinfo, pnp); 599 } 600 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 601 602 return (UNCONF); 603 } 604 605 /* 606 * void cardbus_detach_card(struct cardbus_softc *sc) 607 * 608 * This function detaches the card on the slot: detach device data 609 * structure and turns off the power. 610 * 611 * This function must not be called under interrupt context. 612 */ 613 void 614 cardbus_detach_card(struct cardbus_softc *sc) 615 { 616 struct cardbus_devfunc *ct, *ct_next, **prev_next; 617 618 prev_next = &(sc->sc_funcs->ct_next); 619 620 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 621 struct device *fndev = ct->ct_device; 622 ct_next = ct->ct_next; 623 624 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 625 fndev->dv_xname)); 626 /* call device detach function */ 627 628 if (0 != config_detach(fndev, 0)) { 629 printf("%s: cannot detaching dev %s, function %d\n", 630 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 631 prev_next = &(ct->ct_next); 632 } else { 633 sc->sc_poweron_func &= ~(1 << ct->ct_func); 634 *prev_next = ct->ct_next; 635 free(ct, M_DEVBUF); 636 } 637 } 638 639 sc->sc_poweron_func = 0; 640 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 641 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 642 } 643 644 /* 645 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 646 * Interrupt handler of pccard. 647 * args: 648 * cardbus_chipset_tag_t *cc 649 * int irq: 650 */ 651 void * 652 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 653 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 654 { 655 656 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 657 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 658 } 659 660 /* 661 * void cardbus_intr_disestablish(cc, cf, handler) 662 * Interrupt handler of pccard. 663 * args: 664 * cardbus_chipset_tag_t *cc 665 */ 666 void 667 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 668 void *handler) 669 { 670 671 DPRINTF(("- pccard_intr_disestablish\n")); 672 (*cf->cardbus_intr_disestablish)(cc, handler); 673 } 674 675 /* 676 * XXX this should be merged with cardbus_function_{enable,disable}, 677 * but we don't have a ct when these functions are called. 678 */ 679 static void 680 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 681 { 682 683 if (sc->sc_poweron_func == 0) { 684 /* switch to 3V and/or wait for power to stabilize */ 685 if (cdstatus & CARDBUS_3V_CARD) { 686 /* 687 * sc_poweron_func must be substituted before 688 * entering sleep, in order to avoid turn on 689 * power twice. 690 */ 691 sc->sc_poweron_func |= (1 << function); 692 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 693 } else { 694 /* No cards other than 3.3V cards. */ 695 return; 696 } 697 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 698 } 699 sc->sc_poweron_func |= (1 << function); 700 } 701 702 static void 703 disable_function(struct cardbus_softc *sc, int function) 704 { 705 706 sc->sc_poweron_func &= ~(1 << function); 707 if (sc->sc_poweron_func == 0) { 708 /* power-off because no functions are enabled */ 709 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 710 } 711 } 712 713 /* 714 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 715 * 716 * This function enables a function on a card. When no power is 717 * applied on the card, power will be applied on it. 718 */ 719 int 720 cardbus_function_enable(struct cardbus_softc *sc, int func) 721 { 722 cardbus_chipset_tag_t cc = sc->sc_cc; 723 cardbus_function_tag_t cf = sc->sc_cf; 724 cardbusreg_t command; 725 cardbustag_t tag; 726 727 DPRINTF(("entering cardbus_function_enable... ")); 728 729 /* entering critical area */ 730 731 /* XXX: sc_vold should be used */ 732 enable_function(sc, CARDBUS_3V_CARD, func); 733 734 /* exiting critical area */ 735 736 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 737 738 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 739 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 740 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 741 742 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 743 744 cardbus_free_tag(cc, cf, tag); 745 746 DPRINTF(("%x\n", sc->sc_poweron_func)); 747 748 return (0); 749 } 750 751 /* 752 * int cardbus_function_disable(struct cardbus_softc *, int func) 753 * 754 * This function disable a function on a card. When no functions are 755 * enabled, it turns off the power. 756 */ 757 int 758 cardbus_function_disable(struct cardbus_softc *sc, int func) 759 { 760 761 DPRINTF(("entering cardbus_function_disable... ")); 762 763 disable_function(sc, func); 764 765 return (0); 766 } 767 768 /* 769 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 770 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 771 * cardbusreg_t *value) 772 * 773 * Find the specified PCI capability. 774 */ 775 int 776 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 777 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 778 { 779 cardbusreg_t reg; 780 unsigned int ofs; 781 782 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 783 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 784 return (0); 785 786 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 787 PCI_CAPLISTPTR_REG)); 788 while (ofs != 0) { 789 #ifdef DIAGNOSTIC 790 if ((ofs & 3) || (ofs < 0x40)) 791 panic("cardbus_get_capability"); 792 #endif 793 reg = cardbus_conf_read(cc, cf, tag, ofs); 794 if (PCI_CAPLIST_CAP(reg) == capid) { 795 if (offset) 796 *offset = ofs; 797 if (value) 798 *value = reg; 799 return (1); 800 } 801 ofs = PCI_CAPLIST_NEXT(reg); 802 } 803 804 return (0); 805 } 806 807 /* 808 * below this line, there are some functions for decoding tuples. 809 * They should go out from this file. 810 */ 811 812 static u_int8_t * 813 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 814 815 static int 816 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 817 { 818 u_int8_t *tp = tuple; 819 820 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 821 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 822 return (0); 823 } 824 825 while (NULL != (tp = decode_tuple(tp, func, data))) { 826 if (tuple + buflen < tp) { 827 break; 828 } 829 } 830 831 return (1); 832 } 833 834 static u_int8_t * 835 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 836 { 837 u_int8_t type; 838 u_int8_t len; 839 840 type = tuple[0]; 841 len = tuple[1] + 2; 842 843 (*func)(tuple, len, data); 844 845 if (type == PCMCIA_CISTPL_END) { 846 return (NULL); 847 } 848 849 return (tuple + len); 850 } 851 852 #ifdef CARDBUS_DEBUG 853 static const char *tuple_name(int); 854 static const char *tuple_names[] = { 855 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 856 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 857 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 858 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 859 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 860 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 861 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 862 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 863 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 864 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 865 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 866 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 867 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 868 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 869 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 870 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 871 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 872 "DATE", "BATTERY", "ORG" 873 }; 874 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 875 876 static const char * 877 tuple_name(int type) 878 { 879 880 if (0 <= type && type < NAME_LEN(tuple_names)) { 881 return (tuple_names[type]); 882 } else if (type == 0xff) { 883 return ("END"); 884 } else { 885 return ("Reserved"); 886 } 887 } 888 889 static void 890 print_tuple(u_int8_t *tuple, int len, void *data) 891 { 892 int i; 893 894 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 895 896 for (i = 0; i < len; ++i) { 897 if (i % 16 == 0) { 898 printf(" 0x%2x:", i); 899 } 900 printf(" %x", tuple[i]); 901 if (i % 16 == 15) { 902 printf("\n"); 903 } 904 } 905 if (i % 16 != 0) { 906 printf("\n"); 907 } 908 } 909 #endif 910
Indexes created Tue Sep 30 07:10:03 GMT 2025