cardbus.c revision 1.28
1 /* $NetBSD: cardbus.c,v 1.28 2000/10/12 12:42:03 wiz 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 STATIC int cardbusmatch __P((struct device *, struct cfdata *, void *)); 72 static int cardbussubmatch __P((struct device *, struct cfdata *, void *)); 73 static int cardbusprint __P((void *, const char *)); 74 75 typedef void (*tuple_decode_func)(u_int8_t*, int, void*); 76 77 static int decode_tuples __P((u_int8_t *, int, tuple_decode_func, void*)); 78 #ifdef CARDBUS_DEBUG 79 static void print_tuple __P((u_int8_t*, int, void*)); 80 #endif 81 82 static int cardbus_read_tuples __P((struct cardbus_attach_args *, 83 cardbusreg_t, u_int8_t *, size_t)); 84 85 static void enable_function __P((struct cardbus_softc *, int, int)); 86 static void disable_function __P((struct cardbus_softc *, int)); 87 88 89 struct cfattach cardbus_ca = { 90 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 91 }; 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(parent, cf, aux) 102 struct device *parent; 103 struct cfdata *cf; 104 void *aux; 105 { 106 struct cbslot_attach_args *cba = aux; 107 108 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 109 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 110 cba->cba_busname, cf->cf_driver->cd_name)); 111 return 0; 112 } 113 114 return 1; 115 } 116 117 118 119 STATIC void 120 cardbusattach(parent, self, aux) 121 struct device *parent; 122 struct device *self; 123 void *aux; 124 { 125 struct cardbus_softc *sc = (void *)self; 126 struct cbslot_attach_args *cba = aux; 127 int cdstatus; 128 129 sc->sc_bus = cba->cba_bus; 130 sc->sc_device = 0; 131 sc->sc_intrline = cba->cba_intrline; 132 sc->sc_cacheline = cba->cba_cacheline; 133 sc->sc_lattimer = cba->cba_lattimer; 134 135 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 136 printf(" cacheline 0x%x, lattimer 0x%x\n", sc->sc_cacheline,sc->sc_lattimer); 137 138 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 139 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 140 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 141 sc->sc_cc = cba->cba_cc; 142 sc->sc_cf = cba->cba_cf; 143 144 #if rbus 145 sc->sc_rbus_iot = cba->cba_rbus_iot; 146 sc->sc_rbus_memt = cba->cba_rbus_memt; 147 #endif 148 149 sc->sc_funcs = NULL; 150 151 cdstatus = 0; 152 } 153 154 static int 155 cardbus_read_tuples(ca, cis_ptr, tuples, len) 156 struct cardbus_attach_args *ca; 157 cardbusreg_t cis_ptr; 158 u_int8_t *tuples; 159 size_t len; 160 { 161 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 162 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 163 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 164 cardbustag_t tag = ca->ca_tag; 165 cardbusreg_t command; 166 int found = 0; 167 168 int i, j; 169 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 170 bus_space_handle_t bar_memh; 171 bus_size_t bar_size; 172 bus_addr_t bar_addr; 173 174 int reg; 175 176 memset(tuples, 0, len); 177 178 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 179 180 switch(cardbus_space) { 181 case CARDBUS_CIS_ASI_TUPLE: 182 DPRINTF(("%s: reading CIS data from configuration space\n", 183 sc->sc_dev.dv_xname)); 184 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 185 u_int32_t e = (cf->cardbus_conf_read)(cc, tag, i); 186 tuples[j] = 0xff & e; 187 e >>= 8; 188 tuples[j + 1] = 0xff & e; 189 e >>= 8; 190 tuples[j + 2] = 0xff & e; 191 e >>= 8; 192 tuples[j + 3] = 0xff & e; 193 j += 4; 194 } 195 found++; 196 break; 197 198 case CARDBUS_CIS_ASI_BAR0: 199 case CARDBUS_CIS_ASI_BAR1: 200 case CARDBUS_CIS_ASI_BAR2: 201 case CARDBUS_CIS_ASI_BAR3: 202 case CARDBUS_CIS_ASI_BAR4: 203 case CARDBUS_CIS_ASI_BAR5: 204 case CARDBUS_CIS_ASI_ROM: 205 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 206 reg = CARDBUS_ROM_REG; 207 DPRINTF(("%s: reading CIS data from ROM\n", 208 sc->sc_dev.dv_xname)); 209 } else { 210 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 211 DPRINTF(("%s: reading CIS data from BAR%d\n", 212 sc->sc_dev.dv_xname, cardbus_space - 1)); 213 } 214 215 /* XXX zero register so mapreg_map doesn't get confused by old 216 contents */ 217 cardbus_conf_write(cc, cf, tag, reg, 0); 218 if(Cardbus_mapreg_map(ca->ca_ct, reg, 219 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 220 0, 221 NULL, &bar_memh, &bar_addr, &bar_size)) { 222 printf("%s: failed to map memory\n", sc->sc_dev.dv_xname); 223 return 1; 224 } 225 226 227 if(cardbus_space == CARDBUS_CIS_ASI_ROM) { 228 cardbusreg_t exrom; 229 int save; 230 struct cardbus_rom_image_head rom_image; 231 struct cardbus_rom_image *p; 232 233 save = splhigh(); 234 /* enable rom address decoder */ 235 exrom = cardbus_conf_read(cc, cf, tag, reg); 236 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 237 238 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 239 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 240 command | CARDBUS_COMMAND_MEM_ENABLE); 241 242 if(cardbus_read_exrom(ca->ca_memt, bar_memh, &rom_image)) 243 goto out; 244 245 for(p = SIMPLEQ_FIRST(&rom_image); 246 p; 247 p = SIMPLEQ_NEXT(p, next)) { 248 if(p->rom_image == CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 249 bus_space_read_region_1(p->romt, p->romh, 250 CARDBUS_CIS_ADDR(cis_ptr), 251 tuples, 256); 252 found++; 253 } 254 break; 255 } 256 while((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 257 SIMPLEQ_REMOVE_HEAD(&rom_image, p, next); 258 free(p, M_DEVBUF); 259 } 260 out: 261 exrom = cardbus_conf_read(cc, cf, tag, reg); 262 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 263 splx(save); 264 } else { 265 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 266 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 267 command | CARDBUS_COMMAND_MEM_ENABLE); 268 /* XXX byte order? */ 269 bus_space_read_region_1(ca->ca_memt, bar_memh, 270 cis_ptr, tuples, 256); 271 found++; 272 } 273 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 274 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 275 command & ~CARDBUS_COMMAND_MEM_ENABLE); 276 cardbus_conf_write(cc, cf, tag, reg, 0); 277 #if 0 278 /* XXX unmap memory */ 279 (*ca->ca_ct->ct_cf->cardbus_space_free)(ca->ca_ct, 280 ca->ca_ct->ct_sc->sc_rbus_memt, 281 bar_memh, bar_size); 282 #endif 283 break; 284 285 #ifdef DIAGNOSTIC 286 default: 287 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, cardbus_space); 288 #endif 289 } 290 return !found; 291 } 292 293 static void 294 parse_tuple(u_int8_t *tuple, int len, void *data) 295 { 296 #ifdef CARDBUS_DEBUG 297 static const char __func__[] = "parse_tuple"; 298 #endif 299 struct cardbus_cis_info *cis = data; 300 int bar_index; 301 int i; 302 char *p; 303 switch(tuple[0]) { 304 case PCMCIA_CISTPL_MANFID: 305 if(tuple[1] != 5) { 306 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 307 __func__, tuple[1])); 308 break; 309 } 310 cis->manufacturer = tuple[2] | (tuple[3] << 8); 311 cis->product = tuple[4] | (tuple[5] << 8); 312 break; 313 case PCMCIA_CISTPL_VERS_1: 314 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 315 i = 0; 316 p = cis->cis1_info_buf + 2; 317 while(i < sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 318 cis->cis1_info[i++] = p; 319 while(*p != '\0' && *p != '\xff') 320 p++; 321 if(*p == '\xff') 322 break; 323 p++; 324 } 325 break; 326 case PCMCIA_CISTPL_BAR: 327 if(tuple[1] != 6) { 328 DPRINTF(("%s: BAR with short length (%d)\n", __func__, tuple[1])); 329 break; 330 } 331 bar_index = tuple[2] & 7; 332 if(bar_index == 0) { 333 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 334 break; 335 } 336 bar_index--; 337 cis->bar[bar_index].flags = tuple[2]; 338 cis->bar[bar_index].size = (tuple[4] << 0) | 339 (tuple[5] << 8) | 340 (tuple[6] << 16) | 341 (tuple[7] << 24); 342 break; 343 case PCMCIA_CISTPL_FUNCID: 344 cis->funcid = tuple[2]; 345 break; 346 347 case PCMCIA_CISTPL_FUNCE: 348 switch(cis->funcid) { 349 case PCMCIA_FUNCTION_SERIAL: 350 if(tuple[1] >= 2 && 351 tuple[2] == 0 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */) { 352 cis->funce.serial.uart_type = tuple[3] & 0x1f; 353 cis->funce.serial.uart_present = 1; 354 } 355 break; 356 case PCMCIA_FUNCTION_NETWORK: 357 if(tuple[1] >= 8 && tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 358 if(tuple[3] > sizeof(cis->funce.network.netid)) { 359 DPRINTF(("%s: unknown network id type (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(sc) 384 struct cardbus_softc *sc; 385 { 386 cardbus_chipset_tag_t cc; 387 cardbus_function_tag_t cf; 388 int cdstatus; 389 cardbustag_t tag; 390 cardbusreg_t id, class, cis_ptr; 391 cardbusreg_t bhlc; 392 u_int8_t tuple[2048]; 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 (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) { 406 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", sc->sc_dev.dv_unit)); 407 return 0; 408 } 409 410 enable_function(sc, cdstatus, 8); /* XXX use fake function 8 to 411 keep power on during whole 412 configuration */ 413 function = 0; 414 415 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 416 417 /* 418 * Wait until power comes up. Maxmum 500 ms. 419 */ 420 { 421 int i; 422 for (i = 0; i < 5; ++i) { 423 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 424 if (id != 0xffffffff && id != 0) { 425 break; 426 } 427 if (cold) { /* before kernel thread invoked */ 428 delay(100*1000); 429 } else { /* thread context */ 430 if (tsleep((void *)sc, PCATCH, "cardbus", hz/10) != EWOULDBLOCK) { 431 break; 432 } 433 } 434 } 435 if (i == 5) { 436 return 0; 437 } 438 } 439 440 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 441 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 442 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 443 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 444 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 445 } 446 447 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, 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) == CARDBUS_VENDOR_INVALID) { 460 continue; 461 } 462 463 DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 464 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 465 466 enable_function(sc, cdstatus, function); 467 468 /* clean up every BAR */ 469 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 470 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 471 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 472 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 473 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 474 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 475 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 476 477 /* 478 * We need to allocate the ct here, since we might 479 * need it when reading the CIS 480 */ 481 if (NULL == (ct = (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc), 482 M_DEVBUF, M_NOWAIT))) { 483 panic("no room for cardbus_tag"); 484 } 485 486 ct->ct_cc = sc->sc_cc; 487 ct->ct_cf = sc->sc_cf; 488 ct->ct_bus = sc->sc_bus; 489 ct->ct_dev = sc->sc_device; 490 ct->ct_func = function; 491 ct->ct_sc = sc; 492 ct->ct_next = NULL; 493 *previous_next = ct; 494 495 memset(&ca, 0, sizeof(ca)); 496 497 ca.ca_unit = sc->sc_dev.dv_unit; 498 ca.ca_ct = ct; 499 500 ca.ca_iot = sc->sc_iot; 501 ca.ca_memt = sc->sc_memt; 502 ca.ca_dmat = sc->sc_dmat; 503 504 ca.ca_tag = tag; 505 ca.ca_device = sc->sc_device; 506 ca.ca_function = function; 507 ca.ca_id = id; 508 ca.ca_class = class; 509 510 ca.ca_intrline = sc->sc_intrline; 511 512 bzero(tuple, 2048); 513 514 if(cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 515 printf("cardbus_attach_card: failed to read CIS\n"); 516 } else { 517 #ifdef CARDBUS_DEBUG 518 decode_tuples(tuple, 2048, print_tuple, NULL); 519 #endif 520 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 521 } 522 523 if (NULL == (csc = config_found_sm((void *)sc, &ca, cardbusprint, cardbussubmatch))) { 524 /* do not match */ 525 disable_function(sc, function); 526 free(ct, M_DEVBUF); 527 *previous_next = NULL; 528 } else { 529 /* found */ 530 previous_next = &(ct->ct_next); 531 ct->ct_device = csc; 532 ++no_work_funcs; 533 } 534 } 535 /* 536 * XXX power down pseudo function 8 (this will power down the card 537 * if no functions were attached). 538 */ 539 disable_function(sc, 8); 540 541 return no_work_funcs; 542 } 543 544 545 static int 546 cardbussubmatch(parent, cf, aux) 547 struct device *parent; 548 struct cfdata *cf; 549 void *aux; 550 { 551 struct cardbus_attach_args *ca = aux; 552 553 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 554 cf->cardbuscf_dev != ca->ca_unit) { 555 return 0; 556 } 557 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 558 cf->cardbuscf_function != ca->ca_function) { 559 return 0; 560 } 561 562 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 563 } 564 565 566 567 static int 568 cardbusprint(aux, pnp) 569 void *aux; 570 const char *pnp; 571 { 572 struct cardbus_attach_args *ca = aux; 573 char devinfo[256]; 574 int i; 575 if (pnp) { 576 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 577 for (i = 0; i < 4; i++) { 578 if (ca->ca_cis.cis1_info[i] == NULL) 579 break; 580 if (i) 581 printf(", "); 582 printf("%s", ca->ca_cis.cis1_info[i]); 583 } 584 if (i) 585 printf(" "); 586 printf("(manufacturer 0x%x, product 0x%x)", ca->ca_cis.manufacturer, 587 ca->ca_cis.product); 588 printf(" %s at %s", devinfo, pnp); 589 } 590 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 591 592 return UNCONF; 593 } 594 595 596 597 598 599 600 /* 601 * void cardbus_detach_card(struct cardbus_softc *sc) 602 * 603 * This function detaches the card on the slot: detach device data 604 * structure and turns off the power. 605 * 606 * This function must not be called under interrupt context. 607 */ 608 void 609 cardbus_detach_card(sc) 610 struct cardbus_softc *sc; 611 { 612 struct cardbus_devfunc *ct, *ct_next, **prev_next; 613 614 prev_next = &(sc->sc_funcs->ct_next); 615 616 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 617 struct device *fndev = ct->ct_device; 618 ct_next = ct->ct_next; 619 620 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, fndev->dv_xname)); 621 /* call device detach function */ 622 623 if (0 != config_detach(fndev, 0)) { 624 printf("%s: cannot detaching dev %s, function %d\n", 625 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 626 prev_next = &(ct->ct_next); 627 } else { 628 sc->sc_poweron_func &= ~(1 << ct->ct_func); 629 *prev_next = ct->ct_next; 630 free(ct, M_DEVBUF); 631 } 632 } 633 634 sc->sc_poweron_func = 0; 635 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); 636 } 637 638 639 640 641 /* 642 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 643 * Interrupt handler of pccard. 644 * args: 645 * cardbus_chipset_tag_t *cc 646 * int irq: 647 */ 648 void * 649 cardbus_intr_establish(cc, cf, irq, level, func, arg) 650 cardbus_chipset_tag_t cc; 651 cardbus_function_tag_t cf; 652 cardbus_intr_handle_t irq; 653 int level; 654 int (*func) __P((void *)); 655 void *arg; 656 { 657 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 658 659 return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg); 660 } 661 662 663 664 /* 665 * void cardbus_intr_disestablish(cc, cf, handler) 666 * Interrupt handler of pccard. 667 * args: 668 * cardbus_chipset_tag_t *cc 669 */ 670 void 671 cardbus_intr_disestablish(cc, cf, handler) 672 cardbus_chipset_tag_t cc; 673 cardbus_function_tag_t cf; 674 void *handler; 675 { 676 DPRINTF(("- pccard_intr_disestablish\n")); 677 678 (*cf->cardbus_intr_disestablish)(cc, handler); 679 return; 680 } 681 682 683 684 /* XXX this should be merged with cardbus_function_{enable,disable}, 685 but we don't have a ct when these functions are called */ 686 687 static void 688 enable_function(sc, cdstatus, function) 689 struct cardbus_softc *sc; 690 int cdstatus; 691 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 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V); 698 } else { 699 /* No cards other than 3.3V cards. */ 700 return; 701 } 702 (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 703 } 704 sc->sc_poweron_func |= (1 << function); 705 } 706 707 static void 708 disable_function(sc, function) 709 struct cardbus_softc *sc; 710 int function; 711 { 712 713 sc->sc_poweron_func &= ~(1 << function); 714 if (sc->sc_poweron_func == 0) { 715 /* power-off because no functions are enabled */ 716 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V); 717 } 718 } 719 720 /* 721 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 722 * 723 * This function enables a function on a card. When no power is 724 * applied on the card, power will be applied on it. 725 */ 726 int 727 cardbus_function_enable(sc, func) 728 struct cardbus_softc *sc; 729 int func; 730 { 731 cardbus_chipset_tag_t cc = sc->sc_cc; 732 cardbus_function_tag_t cf = sc->sc_cf; 733 cardbusreg_t command; 734 cardbustag_t tag; 735 736 DPRINTF(("entering cardbus_function_enable... ")); 737 738 /* entering critical area */ 739 740 enable_function(sc, CARDBUS_3V_CARD, func); /* XXX: sc_vold should be used */ 741 742 /* exiting critical area */ 743 744 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 745 746 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 747 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 748 749 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 750 751 cardbus_free_tag(cc, cf, tag); 752 753 DPRINTF(("%x\n", sc->sc_poweron_func)); 754 755 return 0; 756 } 757 758 759 /* 760 * int cardbus_function_disable(struct cardbus_softc *, int func) 761 * 762 * This function disable a function on a card. When no functions are 763 * enabled, it turns off the power. 764 */ 765 int 766 cardbus_function_disable(sc, func) 767 struct cardbus_softc *sc; 768 int func; 769 { 770 771 DPRINTF(("entering cardbus_function_disable... ")); 772 773 disable_function(sc, func); 774 775 return 0; 776 } 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(cc, cf, tag, capid, offset, value) 788 cardbus_chipset_tag_t cc; 789 cardbus_function_tag_t cf; 790 cardbustag_t tag; 791 int capid; 792 int *offset; 793 cardbusreg_t *value; 794 { 795 cardbusreg_t reg; 796 unsigned int ofs; 797 798 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 799 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 800 return (0); 801 802 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 803 PCI_CAPLISTPTR_REG)); 804 while (ofs != 0) { 805 #ifdef DIAGNOSTIC 806 if ((ofs & 3) || (ofs < 0x40)) 807 panic("cardbus_get_capability"); 808 #endif 809 reg = cardbus_conf_read(cc, cf, tag, ofs); 810 if (PCI_CAPLIST_CAP(reg) == capid) { 811 if (offset) 812 *offset = ofs; 813 if (value) 814 *value = reg; 815 return (1); 816 } 817 ofs = PCI_CAPLIST_NEXT(reg); 818 } 819 820 return (0); 821 } 822 823 824 /* 825 * below this line, there are some functions for decoding tuples. 826 * They should go out from this file. 827 */ 828 829 static u_int8_t * 830 decode_tuple __P((u_int8_t *tuple, tuple_decode_func func, void *data)); 831 832 static int 833 decode_tuples(tuple, buflen, func, data) 834 u_int8_t *tuple; 835 int buflen; 836 tuple_decode_func func; 837 void *data; 838 { 839 u_int8_t *tp = tuple; 840 841 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 842 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 843 return 0; 844 } 845 846 while (NULL != (tp = decode_tuple(tp, func, data))) { 847 if (tuple + buflen < tp) { 848 break; 849 } 850 } 851 852 return 1; 853 } 854 855 856 static u_int8_t * 857 decode_tuple(tuple, func, data) 858 u_int8_t *tuple; 859 tuple_decode_func func; 860 void *data; 861 { 862 u_int8_t type; 863 u_int8_t len; 864 865 type = tuple[0]; 866 len = tuple[1] + 2; 867 868 (*func)(tuple, len, data); 869 870 if (PCMCIA_CISTPL_END == type) { 871 return NULL; 872 } 873 874 return tuple + len; 875 } 876 877 878 #ifdef CARDBUS_DEBUG 879 static char *tuple_name __P((int type)); 880 881 static char * 882 tuple_name(type) 883 int type; 884 { 885 static char *tuple_name_s [] = { 886 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 887 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 888 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 889 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 890 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 891 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 892 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 893 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 894 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 895 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 896 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 897 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 898 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 899 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 900 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 901 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 902 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 903 "DATE", "BATTERY", "ORG" 904 }; 905 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 906 907 if (type > 0 && type < NAME_LEN(tuple_name_s)) { 908 return tuple_name_s[type]; 909 } else if (0xff == type) { 910 return "END"; 911 } else { 912 return "Reserved"; 913 } 914 } 915 916 static void 917 print_tuple(tuple, len, data) 918 u_int8_t *tuple; 919 int len; 920 void *data; 921 { 922 int i; 923 924 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 925 926 for (i = 0; i < len; ++i) { 927 if (i % 16 == 0) { 928 printf(" 0x%2x:", i); 929 } 930 printf(" %x",tuple[i]); 931 if (i % 16 == 15) { 932 printf("\n"); 933 } 934 } 935 if (i % 16 != 0) { 936 printf("\n"); 937 } 938 } 939 940 #endif 941
Indexes created Tue Sep 30 20:09:53 GMT 2025