cardbus.c revision 1.40
1 /* $NetBSD: cardbus.c,v 1.40 2001/11/23 10:20:47 enami 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 1.40 2001/11/23 10:20:47 enami 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 for (p = SIMPLEQ_FIRST(&rom_image); p != NULL; 239 p = SIMPLEQ_NEXT(p, next)) { 240 if (p->rom_image == 241 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 242 bus_space_read_region_1(p->romt, 243 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 244 tuples, 256); 245 found++; 246 } 247 break; 248 } 249 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 250 SIMPLEQ_REMOVE_HEAD(&rom_image, p, next); 251 free(p, M_DEVBUF); 252 } 253 out: 254 exrom = cardbus_conf_read(cc, cf, tag, reg); 255 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 256 splx(save); 257 } else { 258 command = cardbus_conf_read(cc, cf, tag, 259 CARDBUS_COMMAND_STATUS_REG); 260 cardbus_conf_write(cc, cf, tag, 261 CARDBUS_COMMAND_STATUS_REG, 262 command | CARDBUS_COMMAND_MEM_ENABLE); 263 /* XXX byte order? */ 264 bus_space_read_region_1(ca->ca_memt, bar_memh, 265 cis_ptr, tuples, 256); 266 found++; 267 } 268 command = cardbus_conf_read(cc, cf, tag, 269 CARDBUS_COMMAND_STATUS_REG); 270 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 271 command & ~CARDBUS_COMMAND_MEM_ENABLE); 272 cardbus_conf_write(cc, cf, tag, reg, 0); 273 274 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 275 bar_size); 276 break; 277 278 #ifdef DIAGNOSTIC 279 default: 280 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 281 cardbus_space); 282 #endif 283 } 284 return (!found); 285 } 286 287 static void 288 parse_tuple(u_int8_t *tuple, int len, void *data) 289 { 290 struct cardbus_cis_info *cis = data; 291 char *p; 292 int i, bar_index; 293 294 switch (tuple[0]) { 295 case PCMCIA_CISTPL_MANFID: 296 if (tuple[1] != 5) { 297 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 298 __func__, tuple[1])); 299 break; 300 } 301 cis->manufacturer = tuple[2] | (tuple[3] << 8); 302 cis->product = tuple[4] | (tuple[5] << 8); 303 break; 304 305 case PCMCIA_CISTPL_VERS_1: 306 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 307 i = 0; 308 p = cis->cis1_info_buf + 2; 309 while (i < 310 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 311 cis->cis1_info[i++] = p; 312 while (*p != '\0' && *p != '\xff') 313 p++; 314 if (*p == '\xff') 315 break; 316 p++; 317 } 318 break; 319 320 case PCMCIA_CISTPL_BAR: 321 if (tuple[1] != 6) { 322 DPRINTF(("%s: BAR with short length (%d)\n", 323 __func__, tuple[1])); 324 break; 325 } 326 bar_index = tuple[2] & 7; 327 if (bar_index == 0) { 328 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 329 break; 330 } 331 bar_index--; 332 cis->bar[bar_index].flags = tuple[2]; 333 cis->bar[bar_index].size = 334 (tuple[4] << 0) | 335 (tuple[5] << 8) | 336 (tuple[6] << 16) | 337 (tuple[7] << 24); 338 break; 339 340 case PCMCIA_CISTPL_FUNCID: 341 cis->funcid = tuple[2]; 342 break; 343 344 case PCMCIA_CISTPL_FUNCE: 345 switch (cis->funcid) { 346 case PCMCIA_FUNCTION_SERIAL: 347 if (tuple[1] >= 2 && 348 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */ 349 tuple[2] == 0) { 350 cis->funce.serial.uart_type = tuple[3] & 0x1f; 351 cis->funce.serial.uart_present = 1; 352 } 353 break; 354 355 case PCMCIA_FUNCTION_NETWORK: 356 if (tuple[1] >= 8 && 357 tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 358 if (tuple[3] > 359 sizeof(cis->funce.network.netid)) { 360 DPRINTF(("%s: unknown network id type " 361 "(len = %d)\n", 362 __func__, tuple[3])); 363 } else { 364 cis->funce.network.netid_present = 1; 365 memcpy(cis->funce.network.netid, 366 tuple + 4, tuple[3]); 367 } 368 } 369 break; 370 } 371 break; 372 } 373 } 374 375 /* 376 * int cardbus_attach_card(struct cardbus_softc *sc) 377 * 378 * This function attaches the card on the slot: turns on power, 379 * reads and analyses tuple, sets configuration index. 380 * 381 * This function returns the number of recognised device functions. 382 * If no functions are recognised, return 0. 383 */ 384 int 385 cardbus_attach_card(struct cardbus_softc *sc) 386 { 387 cardbus_chipset_tag_t cc; 388 cardbus_function_tag_t cf; 389 cardbustag_t tag; 390 cardbusreg_t id, class, cis_ptr; 391 cardbusreg_t bhlc; 392 u_int8_t tuple[2048]; 393 int cdstatus; 394 int function, nfunction; 395 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 396 struct device *csc; 397 int no_work_funcs = 0; 398 cardbus_devfunc_t ct; 399 400 cc = sc->sc_cc; 401 cf = sc->sc_cf; 402 403 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 404 405 /* inspect initial voltage */ 406 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 407 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 408 sc->sc_dev.dv_unit)); 409 return (0); 410 } 411 412 /* 413 * XXX use fake function 8 to keep power on during whole 414 * configuration. 415 */ 416 enable_function(sc, cdstatus, 8); 417 function = 0; 418 419 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 420 421 /* 422 * Wait until power comes up. Maxmum 500 ms. 423 */ 424 { 425 int i; 426 427 for (i = 0; i < 5; ++i) { 428 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 429 if (id != 0xffffffff && id != 0) { 430 break; 431 } 432 if (cold) { /* before kernel thread invoked */ 433 delay(100 * 1000); 434 } else { /* thread context */ 435 if (tsleep((void *)sc, PCATCH, "cardbus", 436 hz / 10) != EWOULDBLOCK) { 437 break; 438 } 439 } 440 } 441 if (i == 5) { 442 return (0); 443 } 444 } 445 446 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 447 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 448 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 449 450 for (function = 0; function < nfunction; function++) { 451 struct cardbus_attach_args ca; 452 453 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 454 function); 455 456 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 457 class = cardbus_conf_read(cc, cf, tag, CARDBUS_CLASS_REG); 458 cis_ptr = cardbus_conf_read(cc, cf, tag, CARDBUS_CIS_REG); 459 460 /* Invalid vendor ID value? */ 461 if (CARDBUS_VENDOR(id) == CARDBUS_VENDOR_INVALID) { 462 continue; 463 } 464 465 DPRINTF(("cardbus_attach_card: " 466 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 467 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 468 469 enable_function(sc, cdstatus, function); 470 471 /* clean up every BAR */ 472 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 473 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 474 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 475 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 476 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 477 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 478 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 479 480 /* set initial latency and cacheline size */ 481 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 482 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 483 function, bhlc)); 484 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 485 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 486 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 487 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 488 489 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 490 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 491 DPRINTF(("0x%08x\n", bhlc)); 492 493 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 494 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 495 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 496 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 497 } 498 499 /* 500 * We need to allocate the ct here, since we might 501 * need it when reading the CIS 502 */ 503 if ((ct = malloc(sizeof(struct cardbus_devfunc), 504 M_DEVBUF, M_NOWAIT)) == NULL) { 505 panic("no room for cardbus_tag"); 506 } 507 508 ct->ct_cc = sc->sc_cc; 509 ct->ct_cf = sc->sc_cf; 510 ct->ct_bus = sc->sc_bus; 511 ct->ct_dev = sc->sc_device; 512 ct->ct_func = function; 513 ct->ct_sc = sc; 514 ct->ct_next = NULL; 515 *previous_next = ct; 516 517 memset(&ca, 0, sizeof(ca)); 518 519 ca.ca_unit = sc->sc_dev.dv_unit; 520 ca.ca_ct = ct; 521 522 ca.ca_iot = sc->sc_iot; 523 ca.ca_memt = sc->sc_memt; 524 ca.ca_dmat = sc->sc_dmat; 525 526 #if rbus 527 ca.ca_rbus_iot = sc->sc_rbus_iot; 528 ca.ca_rbus_memt= sc->sc_rbus_memt; 529 #endif 530 531 ca.ca_tag = tag; 532 ca.ca_bus = sc->sc_bus; 533 ca.ca_device = sc->sc_device; 534 ca.ca_function = function; 535 ca.ca_id = id; 536 ca.ca_class = class; 537 538 ca.ca_intrline = sc->sc_intrline; 539 540 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 541 printf("cardbus_attach_card: failed to read CIS\n"); 542 } else { 543 #ifdef CARDBUS_DEBUG 544 decode_tuples(tuple, 2048, print_tuple, NULL); 545 #endif 546 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 547 } 548 549 if ((csc = config_found_sm((void *)sc, &ca, cardbusprint, 550 cardbussubmatch)) == NULL) { 551 /* do not match */ 552 disable_function(sc, function); 553 free(ct, M_DEVBUF); 554 *previous_next = NULL; 555 } else { 556 /* found */ 557 previous_next = &(ct->ct_next); 558 ct->ct_device = csc; 559 ++no_work_funcs; 560 } 561 } 562 /* 563 * XXX power down pseudo function 8 (this will power down the card 564 * if no functions were attached). 565 */ 566 disable_function(sc, 8); 567 568 return (no_work_funcs); 569 } 570 571 static int 572 cardbussubmatch(struct device *parent, struct cfdata *cf, void *aux) 573 { 574 struct cardbus_attach_args *ca = aux; 575 576 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 577 cf->cardbuscf_dev != ca->ca_unit) { 578 return (0); 579 } 580 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 581 cf->cardbuscf_function != ca->ca_function) { 582 return (0); 583 } 584 585 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 586 } 587 588 static int 589 cardbusprint(void *aux, const char *pnp) 590 { 591 struct cardbus_attach_args *ca = aux; 592 char devinfo[256]; 593 int i; 594 595 if (pnp) { 596 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo); 597 for (i = 0; i < 4; i++) { 598 if (ca->ca_cis.cis1_info[i] == NULL) 599 break; 600 if (i) 601 printf(", "); 602 printf("%s", ca->ca_cis.cis1_info[i]); 603 } 604 if (bootverbose) { 605 if (i) 606 printf(" "); 607 printf("(manufacturer 0x%x, product 0x%x)", 608 ca->ca_cis.manufacturer, ca->ca_cis.product); 609 } 610 printf(" %s at %s", devinfo, pnp); 611 } 612 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 613 614 return (UNCONF); 615 } 616 617 /* 618 * void cardbus_detach_card(struct cardbus_softc *sc) 619 * 620 * This function detaches the card on the slot: detach device data 621 * structure and turns off the power. 622 * 623 * This function must not be called under interrupt context. 624 */ 625 void 626 cardbus_detach_card(struct cardbus_softc *sc) 627 { 628 struct cardbus_devfunc *ct, *ct_next, **prev_next; 629 630 prev_next = &(sc->sc_funcs->ct_next); 631 632 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 633 struct device *fndev = ct->ct_device; 634 ct_next = ct->ct_next; 635 636 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 637 fndev->dv_xname)); 638 /* call device detach function */ 639 640 if (0 != config_detach(fndev, 0)) { 641 printf("%s: cannot detach dev %s, function %d\n", 642 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 643 prev_next = &(ct->ct_next); 644 } else { 645 sc->sc_poweron_func &= ~(1 << ct->ct_func); 646 *prev_next = ct->ct_next; 647 free(ct, M_DEVBUF); 648 } 649 } 650 651 sc->sc_poweron_func = 0; 652 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 653 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 654 } 655 656 /* 657 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 658 * Interrupt handler of pccard. 659 * args: 660 * cardbus_chipset_tag_t *cc 661 * int irq: 662 */ 663 void * 664 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 665 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 666 { 667 668 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 669 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 670 } 671 672 /* 673 * void cardbus_intr_disestablish(cc, cf, handler) 674 * Interrupt handler of pccard. 675 * args: 676 * cardbus_chipset_tag_t *cc 677 */ 678 void 679 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 680 void *handler) 681 { 682 683 DPRINTF(("- pccard_intr_disestablish\n")); 684 (*cf->cardbus_intr_disestablish)(cc, handler); 685 } 686 687 /* 688 * XXX this should be merged with cardbus_function_{enable,disable}, 689 * but we don't have a ct when these functions are called. 690 */ 691 static void 692 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 693 { 694 695 if (sc->sc_poweron_func == 0) { 696 /* switch to 3V and/or wait for power to stabilize */ 697 if (cdstatus & CARDBUS_3V_CARD) { 698 /* 699 * sc_poweron_func must be substituted before 700 * entering sleep, in order to avoid turn on 701 * power twice. 702 */ 703 sc->sc_poweron_func |= (1 << function); 704 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 705 } else { 706 /* No cards other than 3.3V cards. */ 707 return; 708 } 709 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 710 } 711 sc->sc_poweron_func |= (1 << function); 712 } 713 714 static void 715 disable_function(struct cardbus_softc *sc, int function) 716 { 717 718 sc->sc_poweron_func &= ~(1 << function); 719 if (sc->sc_poweron_func == 0) { 720 /* power-off because no functions are enabled */ 721 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 722 } 723 } 724 725 /* 726 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 727 * 728 * This function enables a function on a card. When no power is 729 * applied on the card, power will be applied on it. 730 */ 731 int 732 cardbus_function_enable(struct cardbus_softc *sc, int func) 733 { 734 cardbus_chipset_tag_t cc = sc->sc_cc; 735 cardbus_function_tag_t cf = sc->sc_cf; 736 cardbusreg_t command; 737 cardbustag_t tag; 738 739 DPRINTF(("entering cardbus_function_enable... ")); 740 741 /* entering critical area */ 742 743 /* XXX: sc_vold should be used */ 744 enable_function(sc, CARDBUS_3V_CARD, func); 745 746 /* exiting critical area */ 747 748 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, func); 749 750 command = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG); 751 command |= (CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_IO_ENABLE | 752 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 753 754 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 755 756 cardbus_free_tag(cc, cf, tag); 757 758 DPRINTF(("%x\n", sc->sc_poweron_func)); 759 760 return (0); 761 } 762 763 /* 764 * int cardbus_function_disable(struct cardbus_softc *, int func) 765 * 766 * This function disable a function on a card. When no functions are 767 * enabled, it turns off the power. 768 */ 769 int 770 cardbus_function_disable(struct cardbus_softc *sc, int func) 771 { 772 773 DPRINTF(("entering cardbus_function_disable... ")); 774 775 disable_function(sc, func); 776 777 return (0); 778 } 779 780 /* 781 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 782 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 783 * cardbusreg_t *value) 784 * 785 * Find the specified PCI capability. 786 */ 787 int 788 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 789 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 790 { 791 cardbusreg_t reg; 792 unsigned int ofs; 793 794 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 795 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 796 return (0); 797 798 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 799 PCI_CAPLISTPTR_REG)); 800 while (ofs != 0) { 801 #ifdef DIAGNOSTIC 802 if ((ofs & 3) || (ofs < 0x40)) 803 panic("cardbus_get_capability"); 804 #endif 805 reg = cardbus_conf_read(cc, cf, tag, ofs); 806 if (PCI_CAPLIST_CAP(reg) == capid) { 807 if (offset) 808 *offset = ofs; 809 if (value) 810 *value = reg; 811 return (1); 812 } 813 ofs = PCI_CAPLIST_NEXT(reg); 814 } 815 816 return (0); 817 } 818 819 /* 820 * below this line, there are some functions for decoding tuples. 821 * They should go out from this file. 822 */ 823 824 static u_int8_t * 825 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 826 827 static int 828 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 829 { 830 u_int8_t *tp = tuple; 831 832 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 833 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 834 return (0); 835 } 836 837 while (NULL != (tp = decode_tuple(tp, func, data))) { 838 if (tuple + buflen < tp) { 839 break; 840 } 841 } 842 843 return (1); 844 } 845 846 static u_int8_t * 847 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 848 { 849 u_int8_t type; 850 u_int8_t len; 851 852 type = tuple[0]; 853 len = tuple[1] + 2; 854 855 (*func)(tuple, len, data); 856 857 if (type == PCMCIA_CISTPL_END) { 858 return (NULL); 859 } 860 861 return (tuple + len); 862 } 863 864 #ifdef CARDBUS_DEBUG 865 static const char *tuple_name(int); 866 static const char *tuple_names[] = { 867 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 868 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 869 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 870 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 871 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 872 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 873 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 874 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 875 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 876 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 877 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 878 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 879 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 880 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 881 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 882 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 883 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 884 "DATE", "BATTERY", "ORG" 885 }; 886 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 887 888 static const char * 889 tuple_name(int type) 890 { 891 892 if (0 <= type && type < NAME_LEN(tuple_names)) { 893 return (tuple_names[type]); 894 } else if (type == 0xff) { 895 return ("END"); 896 } else { 897 return ("Reserved"); 898 } 899 } 900 901 static void 902 print_tuple(u_int8_t *tuple, int len, void *data) 903 { 904 int i; 905 906 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 907 908 for (i = 0; i < len; ++i) { 909 if (i % 16 == 0) { 910 printf(" 0x%2x:", i); 911 } 912 printf(" %x", tuple[i]); 913 if (i % 16 == 15) { 914 printf("\n"); 915 } 916 } 917 if (i % 16 != 0) { 918 printf("\n"); 919 } 920 } 921 #endif 922
Indexes created Tue Sep 30 11:09:46 GMT 2025