cardbus.c revision 1.25
1 /* $NetBSD: cardbus.c,v 1.25 2000/04/17 09:16:38 joda 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 __P((struct device *, struct device *, void *)); 68 /* STATIC int cardbusprint __P((void *, const char *)); */ 69 int cardbus_attach_card __P((struct cardbus_softc *)); 70 71 #if !defined __BROKEN_INDIRECT_CONFIG 72 STATIC int cardbusmatch __P((struct device *, struct cfdata *, void *)); 73 static int cardbussubmatch __P((struct device *, struct cfdata *, void *)); 74 #else 75 STATIC int cardbusmatch __P((struct device *, void *, void *)); 76 static int cardbussubmatch __P((struct device *, void *, void *)); 77 #endif 78 static int cardbusprint __P((void *, const char *)); 79 80 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 81 82 static int decode_tuples __P((u_int8_t *, int, tuple_decode_func, void*)); 83 #ifdef CARDBUS_DEBUG 84 static void print_tuple __P((u_int8_t*, int, void*)); 85 #endif 86 87 static int cardbus_read_tuples __P((struct cardbus_attach_args *, 88 cardbusreg_t, u_int8_t *, size_t)); 89 90 static void enable_function __P((struct cardbus_softc *, int, int)); 91 static void disable_function __P((struct cardbus_softc *, int)); 92 93 94 struct cfattach cardbus_ca = { 95 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 96 }; 97 98 #ifndef __NetBSD_Version__ 99 struct cfdriver cardbus_cd = { 100 NULL, "cardbus", DV_DULL 101 }; 102 #endif 103 104 105 STATIC int 106 #if defined __BROKEN_INDIRECT_CONFIG 107 cardbusmatch(parent, match, aux) 108 struct device *parent; 109 void *match; 110 void *aux; 111 #else 112 cardbusmatch(parent, cf, aux) 113 struct device *parent; 114 struct cfdata *cf; 115 void *aux; 116 #endif 117 { 118 #if defined __BROKEN_INDIRECT_CONFIG 119 struct cfdata *cf = match; 120 #endif 121 struct cbslot_attach_args *cba = aux; 122 123 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 124 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 125 cba->cba_busname, cf->cf_driver->cd_name)); 126 return 0; 127 } 128 129 return 1; 130 } 131 132 133 134 STATIC void 135 cardbusattach(parent, self, aux) 136 struct device *parent; 137 struct device *self; 138 void *aux; 139 { 140 struct cardbus_softc *sc = (void *)self; 141 struct cbslot_attach_args *cba = aux; 142 int cdstatus; 143 144 sc->sc_bus = cba->cba_bus; 145 sc->sc_device = 0; 146 sc->sc_intrline = cba->cba_intrline; 147 sc->sc_cacheline = cba->cba_cacheline; 148 sc->sc_lattimer = cba->cba_lattimer; 149 150 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 151 printf(" cacheline 0x%x, lattimer 0x%x\n", sc->sc_cacheline,sc->sc_lattimer); 152 153 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 154 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 155 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 156 sc->sc_cc = cba->cba_cc; 157 sc->sc_cf = cba->cba_cf; 158 159 #if rbus 160 sc->sc_rbus_iot = cba->cba_rbus_iot; 161 sc->sc_rbus_memt = cba->cba_rbus_memt; 162 #endif 163 164 sc->sc_funcs = NULL; 165 166 cdstatus = 0; 167 } 168 169 static int 170 cardbus_read_tuples(ca, cis_ptr, tuples, len) 171 struct cardbus_attach_args *ca; 172 cardbusreg_t cis_ptr; 173 u_int8_t *tuples; 174 size_t len; 175 { 176 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 177 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 178 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 179 cardbustag_t tag = ca->ca_tag; 180 cardbusreg_t command; 181 int found = 0; 182 183 int i, j; 184 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 185 bus_space_handle_t bar_memh; 186 bus_size_t bar_size; 187 bus_addr_t bar_addr; 188 189 int reg; 190 191 memset(tuples, 0, len); 192 193 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 194 195 switch(cardbus_space) { 196 case CARDBUS_CIS_ASI_TUPLE: 197 DPRINTF(("%s: reading CIS data from configuration space\n", 198 sc->sc_dev.dv_xname)); 199 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 200 u_int32_t e = (cf->cardbus_conf_read)(cc, tag, i); 201 tuples[j] = 0xff & e; 202 e >>= 8; 203 tuples[j + 1] = 0xff & e; 204 e >>= 8; 205 tuples[j + 2] = 0xff & e; 206 e >>= 8; 207 tuples[j + 3] = 0xff & e; 208 j += 4; 209 } 210 found++; 211 break; 212 213 case CARDBUS_CIS_ASI_BAR0: 214 case CARDBUS_CIS_ASI_BAR1: 215 case CARDBUS_CIS_ASI_BAR2: 216 case CARDBUS_CIS_ASI_BAR3: 217 case CARDBUS_CIS_ASI_BAR4: 218 case CARDBUS_CIS_ASI_BAR5: 219 case CARDBUS_CIS_ASI_ROM: 220 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 221 reg = CARDBUS_ROM_REG; 222 DPRINTF(("%s: reading CIS data from ROM\n", 223 sc->sc_dev.dv_xname)); 224 } else { 225 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 226 DPRINTF(("%s: reading CIS data from BAR%d\n", 227 sc->sc_dev.dv_xname, cardbus_space - 1)); 228 } 229 230 /* XXX zero register so mapreg_map doesn't get confused by old 231 contents */ 232 cardbus_conf_write(cc, cf, tag, reg, 0); 233 if(Cardbus_mapreg_map(ca->ca_ct, reg, 234 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 235 0, 236 NULL, &bar_memh, &bar_addr, &bar_size)) { 237 printf("%s: failed to map memory\n", sc->sc_dev.dv_xname); 238 return 1; 239 } 240 241 242 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 243 cardbusreg_t exrom; 244 int save; 245 struct cardbus_rom_image_head rom_image; 246 struct cardbus_rom_image *p; 247 248 save = splhigh(); 249 /* enable rom address decoder */ 250 exrom = cardbus_conf_read(cc, cf, tag, reg); 251 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 252 253 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 254 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 255 command | CARDBUS_COMMAND_MEM_ENABLE); 256 257 if(cardbus_read_exrom(ca->ca_memt, bar_memh, &rom_image)) 258 goto out; 259 260 for(p = SIMPLEQ_FIRST(&rom_image); 261 p; 262 p = SIMPLEQ_NEXT(p, next)) { 263 if(p->rom_image == CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 264 bus_space_read_region_1(p->romt, p->romh, 265 CARDBUS_CIS_ADDR(cis_ptr), 266 tuples, 256); 267 found++; 268 } 269 break; 270 } 271 while((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 272 SIMPLEQ_REMOVE_HEAD(&rom_image, p, next); 273 free(p, M_DEVBUF); 274 } 275 out: 276 exrom = cardbus_conf_read(cc, cf, tag, reg); 277 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 278 splx(save); 279 } else { 280 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 281 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 282 command | CARDBUS_COMMAND_MEM_ENABLE); 283 /* XXX byte order? */ 284 bus_space_read_region_1(ca->ca_memt, bar_memh, 285 cis_ptr, tuples, 256); 286 found++; 287 } 288 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 289 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 290 command & ~CARDBUS_COMMAND_MEM_ENABLE); 291 cardbus_conf_write(cc, cf, tag, reg, 0); 292 #if 0 293 /* XXX unmap memory */ 294 (*ca->ca_ct->ct_cf->cardbus_space_free)(ca->ca_ct, 295 ca->ca_ct->ct_sc->sc_rbus_memt, 296 bar_memh, bar_size); 297 #endif 298 break; 299 300 #ifdef DIAGNOSTIC 301 default: 302 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, cardbus_space); 303 #endif 304 } 305 return !found; 306 } 307 308 static void 309 parse_tuple(u_int8_t *tuple, int len, void *data) 310 { 311 #ifdef CARDBUS_DEBUG 312 static const char __func__[] = "parse_tuple"; 313 #endif 314 struct cardbus_cis_info *cis = data; 315 int bar_index; 316 int i; 317 char *p; 318 switch(tuple[0]) { 319 case PCMCIA_CISTPL_MANFID: 320 if(tuple[1] != 5) { 321 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 322 __func__, tuple[1])); 323 break; 324 } 325 cis->manufacturer = tuple[2] | (tuple[3] << 8); 326 cis->product = tuple[4] | (tuple[5] << 8); 327 break; 328 case PCMCIA_CISTPL_VERS_1: 329 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 330 i = 0; 331 p = cis->cis1_info_buf + 2; 332 while(i < sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 333 cis->cis1_info[i++] = p; 334 while(*p != '\0' && *p != '\xff') 335 p++; 336 if(*p == '\xff') 337 break; 338 p++; 339 } 340 break; 341 case PCMCIA_CISTPL_BAR: 342 if(tuple[1] != 6) { 343 DPRINTF(("%s: BAR with short length (%d)\n", __func__, tuple[1])); 344 break; 345 } 346 bar_index = tuple[2] & 7; 347 if(bar_index == 0) { 348 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 349 break; 350 } 351 bar_index--; 352 cis->bar[bar_index].flags = tuple[2]; 353 cis->bar[bar_index].size = (tuple[4] << 0) | 354 (tuple[5] << 8) | 355 (tuple[6] << 16) | 356 (tuple[7] << 24); 357 break; 358 case PCMCIA_CISTPL_FUNCID: 359 cis->funcid = tuple[2]; 360 break; 361 362 case PCMCIA_CISTPL_FUNCE: 363 switch(cis->funcid) { 364 case PCMCIA_FUNCTION_SERIAL: 365 if(tuple[1] >= 2 && 366 tuple[2] == 0 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */) { 367 cis->funce.serial.uart_type = tuple[3] & 0x1f; 368 cis->funce.serial.uart_present = 1; 369 } 370 break; 371 case PCMCIA_FUNCTION_NETWORK: 372 if(tuple[1] >= 8 && tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 373 if(tuple[3] > sizeof(cis->funce.network.netid)) { 374 DPRINTF(("%s: unknown network id type (len = %d)\n", 375 __func__, tuple[3])); 376 } else { 377 cis->funce.network.netid_present = 1; 378 memcpy(cis->funce.network.netid, 379 tuple + 4, tuple[3]); 380 } 381 } 382 break; 383 } 384 break; 385 } 386 } 387 388 /* 389 * int cardbus_attach_card(struct cardbus_softc *sc) 390 * 391 * This function attaches the card on the slot: turns on power, 392 * reads and analyses tuple, sets consifuration index. 393 * 394 * This function returns the number of recognised device functions. 395 * If no functions are recognised, return 0. 396 */ 397 int 398 cardbus_attach_card(sc) 399 struct cardbus_softc *sc; 400 { 401 cardbus_chipset_tag_t cc; 402 cardbus_function_tag_t cf; 403 int cdstatus; 404 cardbustag_t tag; 405 cardbusreg_t id, class, cis_ptr; 406 cardbusreg_t bhlc; 407 u_int8_t tuple[2048]; 408 int function, nfunction; 409 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 410 struct device *csc; 411 int no_work_funcs = 0; 412 cardbus_devfunc_t ct; 413 414 cc = sc->sc_cc; 415 cf = sc->sc_cf; 416 417 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 418 419 /* inspect initial voltage */ 420 if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) { 421 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", sc->sc_dev.dv_unit)); 422 return 0; 423 } 424 425 enable_function(sc, cdstatus, 8); /* XXX use fake function 8 to 426 keep power on during whole 427 configuration */ 428 function = 0; 429 430 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 431 432 /* 433 * Wait until power comes up. Maxmum 500 ms. 434 */ 435 { 436 int i; 437 for (i = 0; i < 5; ++i) { 438 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 439 if (id != 0xffffffff && id != 0) { 440 break; 441 } 442 if (cold) { /* before kernel thread invoked */ 443 delay(100*1000); 444 } else { /* thread context */ 445 if (tsleep((void *)sc, PCATCH, "cardbus", hz/10) != EWOULDBLOCK) { 446 break; 447 } 448 } 449 } 450 if (i == 5) { 451 return 0; 452 } 453 } 454 455 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 456 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 457 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 458 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 459 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 460 } 461 462 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 463 464 for(function = 0; function < nfunction; function++) { 465 struct cardbus_attach_args ca; 466 467 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 468 469 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 470 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 471 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 472 473 /* Invalid vendor ID value? */ 474 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 475 continue; 476 } 477 478 DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 479 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 480 481 enable_function(sc, cdstatus, function); 482 483 /* clean up every BAR */ 484 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 485 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 486 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 487 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 488 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 489 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 490 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 491 492 /* 493 * We need to allocate the ct here, since we might 494 * need it when reading the CIS 495 */ 496 if (NULL == (ct = (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc), 497 M_DEVBUF, M_NOWAIT))) { 498 panic("no room for cardbus_tag"); 499 } 500 501 ct->ct_cc = sc->sc_cc; 502 ct->ct_cf = sc->sc_cf; 503 ct->ct_bus = sc->sc_bus; 504 ct->ct_dev = sc->sc_device; 505 ct->ct_func = function; 506 ct->ct_sc = sc; 507 ct->ct_next = NULL; 508 *previous_next = ct; 509 510 memset(&ca, 0, sizeof(ca)); 511 512 ca.ca_unit = sc->sc_dev.dv_unit; 513 ca.ca_ct = ct; 514 515 ca.ca_iot = sc->sc_iot; 516 ca.ca_memt = sc->sc_memt; 517 ca.ca_dmat = sc->sc_dmat; 518 519 ca.ca_tag = tag; 520 ca.ca_device = sc->sc_device; 521 ca.ca_function = function; 522 ca.ca_id = id; 523 ca.ca_class = class; 524 525 ca.ca_intrline = sc->sc_intrline; 526 527 bzero(tuple, 2048); 528 529 if(cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 530 printf("cardbus_attach_card: failed to read CIS\n"); 531 } else { 532 #ifdef CARDBUS_DEBUG 533 decode_tuples(tuple, 2048, print_tuple, NULL); 534 #endif 535 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 536 } 537 538 if (NULL == (csc = config_found_sm((void *)sc, &ca, cardbusprint, cardbussubmatch))) { 539 /* do not match */ 540 disable_function(sc, function); 541 free(ct, M_DEVBUF); 542 *previous_next = NULL; 543 } else { 544 /* found */ 545 previous_next = &(ct->ct_next); 546 ct->ct_device = csc; 547 ++no_work_funcs; 548 } 549 } 550 /* 551 * XXX power down pseudo function 8 (this will power down the card 552 * if no functions were attached). 553 */ 554 disable_function(sc, 8); 555 556 return no_work_funcs; 557 } 558 559 560 static int 561 #ifdef __BROKEN_INDIRECT_CONFIG 562 cardbussubmatch(parent, match, aux) 563 #else 564 cardbussubmatch(parent, cf, aux) 565 #endif 566 struct device *parent; 567 #ifdef __BROKEN_INDIRECT_CONFIG 568 void *match; 569 #else 570 struct cfdata *cf; 571 #endif 572 void *aux; 573 { 574 #ifdef __BROKEN_INDIRECT_CONFIG 575 struct cfdata *cf = match; 576 #endif 577 struct cardbus_attach_args *ca = aux; 578 579 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 580 cf->cardbuscf_dev != ca->ca_unit) { 581 return 0; 582 } 583 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 584 cf->cardbuscf_function != ca->ca_function) { 585 return 0; 586 } 587 588 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 589 } 590 591 592 593 static int 594 cardbusprint(aux, pnp) 595 void *aux; 596 const char *pnp; 597 { 598 struct cardbus_attach_args *ca = aux; 599 char devinfo[256]; 600 int i; 601 if (pnp) { 602 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 603 for (i = 0; i < 4; i++) { 604 if (ca->ca_cis.cis1_info[i] == NULL) 605 break; 606 if (i) 607 printf(", "); 608 printf("%s", ca->ca_cis.cis1_info[i]); 609 } 610 if (i) 611 printf(" "); 612 printf("(manufacturer 0x%x, product 0x%x)", ca->ca_cis.manufacturer, 613 ca->ca_cis.product); 614 printf(" %s at %s", devinfo, pnp); 615 } 616 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 617 618 return UNCONF; 619 } 620 621 622 623 624 625 626 /* 627 * void cardbus_detach_card(struct cardbus_softc *sc) 628 * 629 * This function detaches the card on the slot: detach device data 630 * structure and turns off the power. 631 * 632 * This function must not be called under interrupt context. 633 */ 634 void 635 cardbus_detach_card(sc) 636 struct cardbus_softc *sc; 637 { 638 struct cardbus_devfunc *ct, *ct_next, **prev_next; 639 640 prev_next = &(sc->sc_funcs->ct_next); 641 642 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 643 struct device *fndev = ct->ct_device; 644 ct_next = ct->ct_next; 645 646 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, fndev->dv_xname)); 647 /* call device detach function */ 648 649 if (0 != config_detach(fndev, 0)) { 650 printf("%s: cannot detaching dev %s, function %d\n", 651 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 652 prev_next = &(ct->ct_next); 653 } else { 654 sc->sc_poweron_func &= ~(1 << ct->ct_func); 655 *prev_next = ct->ct_next; 656 free(ct, M_DEVBUF); 657 } 658 } 659 660 sc->sc_poweron_func = 0; 661 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); 662 } 663 664 665 666 667 /* 668 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 669 * Interrupt handler of pccard. 670 * args: 671 * cardbus_chipset_tag_t *cc 672 * int irq: 673 */ 674 void * 675 cardbus_intr_establish(cc, cf, irq, level, func, arg) 676 cardbus_chipset_tag_t cc; 677 cardbus_function_tag_t cf; 678 cardbus_intr_handle_t irq; 679 int level; 680 int (*func) __P((void *)); 681 void *arg; 682 { 683 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 684 685 return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg); 686 } 687 688 689 690 /* 691 * void cardbus_intr_disestablish(cc, cf, handler) 692 * Interrupt handler of pccard. 693 * args: 694 * cardbus_chipset_tag_t *cc 695 */ 696 void 697 cardbus_intr_disestablish(cc, cf, handler) 698 cardbus_chipset_tag_t cc; 699 cardbus_function_tag_t cf; 700 void *handler; 701 { 702 DPRINTF(("- pccard_intr_disestablish\n")); 703 704 (*cf->cardbus_intr_disestablish)(cc, handler); 705 return; 706 } 707 708 709 710 /* XXX this should be merged with cardbus_function_{enable,disable}, 711 but we don't have a ct when these functions are called */ 712 713 static void 714 enable_function(sc, cdstatus, function) 715 struct cardbus_softc *sc; 716 int cdstatus; 717 int function; 718 { 719 720 if (sc->sc_poweron_func == 0) { 721 /* switch to 3V and/or wait for power to stabilize */ 722 if (cdstatus & CARDBUS_3V_CARD) { 723 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V); 724 } else { 725 /* No cards other than 3.3V cards. */ 726 return; 727 } 728 (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 729 } 730 sc->sc_poweron_func |= (1 << function); 731 } 732 733 static void 734 disable_function(sc, function) 735 struct cardbus_softc *sc; 736 int function; 737 { 738 739 sc->sc_poweron_func &= ~(1 << function); 740 if (sc->sc_poweron_func == 0) { 741 /* power-off because no functions are enabled */ 742 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V); 743 } 744 } 745 746 /* 747 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 748 * 749 * This function enables a function on a card. When no power is 750 * applied on the card, power will be applied on it. 751 */ 752 int 753 cardbus_function_enable(sc, func) 754 struct cardbus_softc *sc; 755 int func; 756 { 757 cardbus_chipset_tag_t cc = sc->sc_cc; 758 cardbus_function_tag_t cf = sc->sc_cf; 759 cardbusreg_t command; 760 cardbustag_t tag; 761 762 DPRINTF(("entering cardbus_function_enable... ")); 763 764 /* entering critical area */ 765 766 enable_function(sc, CARDBUS_3V_CARD, func); /* XXX: sc_vold should be used */ 767 768 /* exiting critical area */ 769 770 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 771 772 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 773 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 774 775 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 776 777 cardbus_free_tag(cc, cf, tag); 778 779 DPRINTF(("%x\n", sc->sc_poweron_func)); 780 781 return 0; 782 } 783 784 785 /* 786 * int cardbus_function_disable(struct cardbus_softc *, int func) 787 * 788 * This function disable a function on a card. When no functions are 789 * enabled, it turns off the power. 790 */ 791 int 792 cardbus_function_disable(sc, func) 793 struct cardbus_softc *sc; 794 int func; 795 { 796 797 DPRINTF(("entering cardbus_function_disable... ")); 798 799 disable_function(sc, func); 800 801 return 0; 802 } 803 804 805 /* 806 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 807 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 808 * cardbusreg_t *value) 809 * 810 * Find the specified PCI capability. 811 */ 812 int 813 cardbus_get_capability(cc, cf, tag, capid, offset, value) 814 cardbus_chipset_tag_t cc; 815 cardbus_function_tag_t cf; 816 cardbustag_t tag; 817 int capid; 818 int *offset; 819 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 /* 851 * below this line, there are some functions for decoding tuples. 852 * They should go out from this file. 853 */ 854 855 static u_int8_t * 856 decode_tuple __P((u_int8_t *tuple, tuple_decode_func func, void *data)); 857 858 static int 859 decode_tuples(tuple, buflen, func, data) 860 u_int8_t *tuple; 861 int buflen; 862 tuple_decode_func func; 863 void *data; 864 { 865 u_int8_t *tp = tuple; 866 867 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 868 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 869 return 0; 870 } 871 872 while (NULL != (tp = decode_tuple(tp, func, data))) { 873 if (tuple + buflen < tp) { 874 break; 875 } 876 } 877 878 return 1; 879 } 880 881 882 static u_int8_t * 883 decode_tuple(tuple, func, data) 884 u_int8_t *tuple; 885 tuple_decode_func func; 886 void *data; 887 { 888 u_int8_t type; 889 u_int8_t len; 890 891 type = tuple[0]; 892 len = tuple[1] + 2; 893 894 (*func)(tuple, len, data); 895 896 if (PCMCIA_CISTPL_END == type) { 897 return NULL; 898 } 899 900 return tuple + len; 901 } 902 903 904 #ifdef CARDBUS_DEBUG 905 static char *tuple_name __P((int type)); 906 907 static char * 908 tuple_name(type) 909 int type; 910 { 911 static char *tuple_name_s [] = { 912 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 913 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 914 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 915 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 916 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 917 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 918 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 919 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 920 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 921 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 922 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 923 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 924 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 925 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 926 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 927 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 928 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 929 "DATE", "BATTERY", "ORG" 930 }; 931 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 932 933 if (type > 0 && type < NAME_LEN(tuple_name_s)) { 934 return tuple_name_s[type]; 935 } else if (0xff == type) { 936 return "END"; 937 } else { 938 return "Reserved"; 939 } 940 } 941 942 static void 943 print_tuple(tuple, len, data) 944 u_int8_t *tuple; 945 int len; 946 void *data; 947 { 948 int i; 949 950 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 951 952 for (i = 0; i < len; ++i) { 953 if (i % 16 == 0) { 954 printf(" 0x%2x:", i); 955 } 956 printf(" %x",tuple[i]); 957 if (i % 16 == 15) { 958 printf("\n"); 959 } 960 } 961 if (i % 16 != 0) { 962 printf("\n"); 963 } 964 } 965 966 #endif 967
Indexes created Wed Oct 01 07:09:59 GMT 2025