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sys/dev/cardbus/cardbus.c
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1 /* $OpenBSD: cardbus.c,v 1.53 2022/04/06 18:59:27 naddy Exp $ */ 2 /* $NetBSD: cardbus.c,v 1.24 2000/04/02 19:11:37 mycroft Exp $ */ 3 4 /* 5 * Copyright (c) 1997, 1998, 1999 and 2000 6 * HAYAKAWA Koichi. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/device.h> 34 #include <sys/malloc.h> 35 #include <sys/kernel.h> 36 37 #include <machine/bus.h> 38 39 #include <dev/cardbus/cardbusvar.h> 40 #include <dev/pci/pcidevs.h> 41 42 #include <dev/cardbus/cardbus_exrom.h> 43 44 #include <dev/pci/pcivar.h> /* XXX */ 45 #include <dev/pci/pcireg.h> /* XXX */ 46 47 #include <dev/pcmcia/pcmciareg.h> 48 49 #ifdef CARDBUS_DEBUG 50 #define STATIC 51 #define DPRINTF(a) printf a 52 #else 53 #ifdef DDB 54 #define STATIC 55 #else 56 #define STATIC static 57 #endif 58 #define DPRINTF(a) 59 #endif 60 61 STATIC void cardbusattach(struct device *, struct device *, void *); 62 /* STATIC int cardbusprint(void *, const char *); */ 63 64 STATIC int cardbusmatch(struct device *, void *, void *); 65 STATIC int cardbussubmatch(struct device *, void *, void *); 66 STATIC int cardbusprint(void *, const char *); 67 68 typedef void (*tuple_decode_func)(u_int8_t *, int, void *); 69 70 STATIC int decode_tuples(u_int8_t *, int, tuple_decode_func, void *); 71 STATIC void parse_tuple(u_int8_t *, int, void *); 72 #ifdef CARDBUS_DEBUG 73 static void print_tuple(u_int8_t *, int, void *); 74 #endif 75 76 STATIC int cardbus_read_tuples(struct cardbus_attach_args *, 77 pcireg_t, u_int8_t *, size_t); 78 79 STATIC void enable_function(struct cardbus_softc *, int, int); 80 STATIC void disable_function(struct cardbus_softc *, int); 81 82 83 const struct cfattach cardbus_ca = { 84 sizeof(struct cardbus_softc), cardbusmatch, cardbusattach 85 }; 86 87 struct cfdriver cardbus_cd = { 88 NULL, "cardbus", DV_DULL 89 }; 90 91 STATIC int 92 cardbusmatch(struct device *parent, void *match, void *aux) 93 { 94 struct cfdata *cf = match; 95 struct cbslot_attach_args *cba = aux; 96 97 if (strcmp(cba->cba_busname, cf->cf_driver->cd_name)) { 98 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 99 cba->cba_busname, cf->cf_driver->cd_name)); 100 return (0); 101 } 102 103 return (1); 104 } 105 106 STATIC void 107 cardbusattach(struct device *parent, struct device *self, void *aux) 108 { 109 struct cardbus_softc *sc = (void *)self; 110 struct cbslot_attach_args *cba = aux; 111 int cdstatus; 112 113 sc->sc_bus = cba->cba_bus; 114 sc->sc_device = 0; 115 sc->sc_intrline = cba->cba_intrline; 116 sc->sc_cacheline = cba->cba_cacheline; 117 sc->sc_lattimer = cba->cba_lattimer; 118 119 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 120 printf(" cacheline 0x%x, lattimer 0x%x\n", 121 sc->sc_cacheline,sc->sc_lattimer); 122 123 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 124 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 125 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 126 sc->sc_cc = cba->cba_cc; 127 sc->sc_pc = cba->cba_pc; 128 sc->sc_cf = cba->cba_cf; 129 sc->sc_rbus_iot = cba->cba_rbus_iot; 130 sc->sc_rbus_memt = cba->cba_rbus_memt; 131 132 cdstatus = 0; 133 } 134 135 STATIC int 136 cardbus_read_tuples(struct cardbus_attach_args *ca, pcireg_t cis_ptr, 137 u_int8_t *tuples, size_t len) 138 { 139 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 140 pci_chipset_tag_t pc = ca->ca_pc; 141 pcitag_t tag = ca->ca_tag; 142 pcireg_t command; 143 int found = 0; 144 145 int i, j; 146 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 147 bus_space_tag_t bar_tag; 148 bus_space_handle_t bar_memh; 149 bus_size_t bar_size; 150 bus_addr_t bar_addr; 151 152 int reg; 153 154 memset(tuples, 0, len); 155 156 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 157 158 switch (cardbus_space) { 159 case CARDBUS_CIS_ASI_TUPLE: 160 DPRINTF(("%s: reading CIS data from configuration space\n", 161 sc->sc_dev.dv_xname)); 162 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 163 u_int32_t e = pci_conf_read(pc, tag, i); 164 tuples[j] = 0xff & e; 165 e >>= 8; 166 tuples[j + 1] = 0xff & e; 167 e >>= 8; 168 tuples[j + 2] = 0xff & e; 169 e >>= 8; 170 tuples[j + 3] = 0xff & e; 171 j += 4; 172 } 173 found++; 174 break; 175 176 case CARDBUS_CIS_ASI_BAR0: 177 case CARDBUS_CIS_ASI_BAR1: 178 case CARDBUS_CIS_ASI_BAR2: 179 case CARDBUS_CIS_ASI_BAR3: 180 case CARDBUS_CIS_ASI_BAR4: 181 case CARDBUS_CIS_ASI_BAR5: 182 case CARDBUS_CIS_ASI_ROM: 183 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 184 reg = CARDBUS_ROM_REG; 185 DPRINTF(("%s: reading CIS data from ROM\n", 186 sc->sc_dev.dv_xname)); 187 } else { 188 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 189 DPRINTF(("%s: reading CIS data from BAR%d\n", 190 sc->sc_dev.dv_xname, cardbus_space - 1)); 191 } 192 193 /* XXX zero register so mapreg_map doesn't get confused by old 194 contents */ 195 pci_conf_write(pc, tag, reg, 0); 196 if (Cardbus_mapreg_map(ca->ca_ct, reg, 197 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 198 &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 199 printf("%s: can't map memory\n", 200 sc->sc_dev.dv_xname); 201 return (1); 202 } 203 204 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 205 pcireg_t exrom; 206 int save; 207 struct cardbus_rom_image_head rom_image; 208 struct cardbus_rom_image *p; 209 210 save = splhigh(); 211 /* enable rom address decoder */ 212 exrom = pci_conf_read(pc, tag, reg); 213 pci_conf_write(pc, tag, reg, exrom | 1); 214 215 command = pci_conf_read(pc, tag, 216 PCI_COMMAND_STATUS_REG); 217 pci_conf_write(pc, tag, 218 PCI_COMMAND_STATUS_REG, 219 command | PCI_COMMAND_MEM_ENABLE); 220 221 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 222 &rom_image)) 223 goto out; 224 225 for (p = SIMPLEQ_FIRST(&rom_image); p; 226 p = SIMPLEQ_NEXT(p, next)) { 227 if (p->rom_image == 228 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 229 bus_space_read_region_1(p->romt, 230 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 231 tuples, MIN(p->image_size, len)); 232 found++; 233 break; 234 } 235 } 236 237 out: 238 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 239 SIMPLEQ_REMOVE_HEAD(&rom_image, next); 240 free(p, M_DEVBUF, sizeof(*p)); 241 } 242 exrom = pci_conf_read(pc, tag, reg); 243 pci_conf_write(pc, tag, reg, exrom & ~1); 244 splx(save); 245 } else { 246 command = pci_conf_read(pc, tag, 247 PCI_COMMAND_STATUS_REG); 248 pci_conf_write(pc, tag, 249 PCI_COMMAND_STATUS_REG, 250 command | PCI_COMMAND_MEM_ENABLE); 251 /* XXX byte order? */ 252 bus_space_read_region_1(ca->ca_memt, bar_memh, 253 cis_ptr, tuples, 256); 254 found++; 255 } 256 command = pci_conf_read(pc, tag, 257 PCI_COMMAND_STATUS_REG); 258 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 259 command & ~PCI_COMMAND_MEM_ENABLE); 260 pci_conf_write(pc, tag, reg, 0); 261 262 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 263 bar_size); 264 break; 265 266 #ifdef DIAGNOSTIC 267 default: 268 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 269 cardbus_space); 270 #endif 271 } 272 return (!found); 273 } 274 275 STATIC void 276 parse_tuple(u_int8_t *tuple, int len, void *data) 277 { 278 struct cardbus_cis_info *cis = data; 279 int bar_index; 280 int i; 281 char *p; 282 283 switch (tuple[0]) { 284 case PCMCIA_CISTPL_MANFID: 285 if (tuple[1] < 4) { 286 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 287 __func__, tuple[1])); 288 break; 289 } 290 cis->manufacturer = tuple[2] | (tuple[3] << 8); 291 cis->product = tuple[4] | (tuple[5] << 8); 292 break; 293 case PCMCIA_CISTPL_VERS_1: 294 bcopy(tuple + 2, cis->cis1_info_buf, tuple[1]); 295 i = 0; 296 p = cis->cis1_info_buf + 2; 297 while (i < 298 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 299 if (p >= cis->cis1_info_buf + tuple[1] || *p == '\xff') 300 break; 301 cis->cis1_info[i++] = p; 302 while (*p != '\0' && *p != '\xff') 303 p++; 304 if (*p == '\0') 305 p++; 306 } 307 break; 308 case PCMCIA_CISTPL_BAR: 309 if (tuple[1] != 6) { 310 DPRINTF(("%s: BAR with short length (%d)\n", 311 __func__, tuple[1])); 312 break; 313 } 314 bar_index = tuple[2] & 7; 315 if (bar_index == 0) { 316 DPRINTF(("%s: invalid ASI in BAR tuple\n", 317 __func__)); 318 break; 319 } 320 bar_index--; 321 cis->bar[bar_index].flags = tuple[2]; 322 cis->bar[bar_index].size = (tuple[4] << 0) | 323 (tuple[5] << 8) | (tuple[6] << 16) | (tuple[7] << 24); 324 break; 325 case PCMCIA_CISTPL_FUNCID: 326 cis->funcid = tuple[2]; 327 break; 328 329 case PCMCIA_CISTPL_FUNCE: 330 switch (cis->funcid) { 331 case PCMCIA_FUNCTION_SERIAL: 332 if (tuple[1] >= 2 && 333 tuple[2] == 0 334 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */) { 335 cis->funce.serial.uart_type = tuple[3] & 0x1f; 336 cis->funce.serial.uart_present = 1; 337 } 338 break; 339 case PCMCIA_FUNCTION_NETWORK: 340 if (tuple[1] >= 8 && tuple[2] == 341 PCMCIA_TPLFE_TYPE_LAN_NID) { 342 if (tuple[3] > 343 sizeof(cis->funce.network.netid)) { 344 DPRINTF(("%s: unknown network id type" 345 " (len = %d)\n", __func__, 346 tuple[3])); 347 } else { 348 cis->funce.network.netid_present = 1; 349 bcopy(tuple + 4, 350 cis->funce.network.netid, tuple[3]); 351 } 352 } 353 } 354 break; 355 } 356 } 357 358 /* 359 * int cardbus_attach_card(struct cardbus_softc *sc) 360 * 361 * This function attaches the card on the slot: turns on power, 362 * reads and analyses tuple, sets configuration index. 363 * 364 * This function returns the number of recognised device functions. 365 * If no functions are recognised, return 0. 366 */ 367 int 368 cardbus_attach_card(struct cardbus_softc *sc) 369 { 370 cardbus_chipset_tag_t cc; 371 cardbus_function_tag_t cf; 372 int cdstatus; 373 pcitag_t tag; 374 pcireg_t id, class, cis_ptr; 375 pcireg_t bhlc; 376 u_int8_t *tuple; 377 int function, nfunction; 378 struct device *csc; 379 int no_work_funcs = 0; 380 cardbus_devfunc_t ct; 381 pci_chipset_tag_t pc = sc->sc_pc; 382 int i; 383 384 cc = sc->sc_cc; 385 cf = sc->sc_cf; 386 387 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 388 389 /* inspect initial voltage */ 390 if (0 == (cdstatus = (cf->cardbus_ctrl)(cc, CARDBUS_CD))) { 391 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 392 sc->sc_dev.dv_unit)); 393 return (0); 394 } 395 396 /* XXX use fake function 8 to keep power on during whole configuration */ 397 enable_function(sc, cdstatus, 8); 398 399 function = 0; 400 401 tag = pci_make_tag(pc, sc->sc_bus, sc->sc_device, function); 402 403 /* Wait until power comes up. Maximum 500 ms. */ 404 for (i = 0; i < 5; ++i) { 405 id = pci_conf_read(pc, tag, PCI_ID_REG); 406 if (id != 0xffffffff && id != 0) 407 break; 408 if (cold) { /* before kernel thread invoked */ 409 delay(100*1000); 410 } else { /* thread context */ 411 if (tsleep_nsec(sc, PCATCH, "cardbus", 412 MSEC_TO_NSEC(100)) != EWOULDBLOCK) { 413 break; 414 } 415 } 416 } 417 if (i == 5) 418 return (0); 419 420 bhlc = pci_conf_read(pc, tag, PCI_BHLC_REG); 421 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 422 nfunction = PCI_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 423 424 tuple = malloc(2048, M_TEMP, M_NOWAIT); 425 if (tuple == NULL) 426 panic("no room for cardbus tuples"); 427 428 for (function = 0; function < nfunction; function++) { 429 struct cardbus_attach_args ca; 430 431 tag = pci_make_tag(pc, sc->sc_bus, sc->sc_device, 432 function); 433 434 id = pci_conf_read(pc, tag, PCI_ID_REG); 435 class = pci_conf_read(pc, tag, PCI_CLASS_REG); 436 cis_ptr = pci_conf_read(pc, tag, CARDBUS_CIS_REG); 437 438 /* Invalid vendor ID value? */ 439 if (PCI_VENDOR(id) == PCI_VENDOR_INVALID) 440 continue; 441 442 DPRINTF(("cardbus_attach_card: Vendor 0x%x, Product 0x%x, " 443 "CIS 0x%x\n", PCI_VENDOR(id), PCI_PRODUCT(id), 444 cis_ptr)); 445 446 enable_function(sc, cdstatus, function); 447 448 /* clean up every BAR */ 449 pci_conf_write(pc, tag, CARDBUS_BASE0_REG, 0); 450 pci_conf_write(pc, tag, CARDBUS_BASE1_REG, 0); 451 pci_conf_write(pc, tag, CARDBUS_BASE2_REG, 0); 452 pci_conf_write(pc, tag, CARDBUS_BASE3_REG, 0); 453 pci_conf_write(pc, tag, CARDBUS_BASE4_REG, 0); 454 pci_conf_write(pc, tag, CARDBUS_BASE5_REG, 0); 455 pci_conf_write(pc, tag, CARDBUS_ROM_REG, 0); 456 457 /* set initial latency and cacheline size */ 458 bhlc = pci_conf_read(pc, tag, PCI_BHLC_REG); 459 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 460 function, bhlc)); 461 bhlc &= ~((PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT) | 462 (PCI_CACHELINE_MASK << PCI_CACHELINE_SHIFT)); 463 bhlc |= ((sc->sc_cacheline & PCI_CACHELINE_MASK) << 464 PCI_CACHELINE_SHIFT); 465 bhlc |= ((sc->sc_lattimer & PCI_LATTIMER_MASK) << 466 PCI_LATTIMER_SHIFT); 467 468 pci_conf_write(pc, tag, PCI_BHLC_REG, bhlc); 469 bhlc = pci_conf_read(pc, tag, PCI_BHLC_REG); 470 DPRINTF(("0x%08x\n", bhlc)); 471 472 if (PCI_LATTIMER(bhlc) < 0x10) { 473 bhlc &= ~(PCI_LATTIMER_MASK << 474 PCI_LATTIMER_SHIFT); 475 bhlc |= (0x10 << PCI_LATTIMER_SHIFT); 476 pci_conf_write(pc, tag, PCI_BHLC_REG, 477 bhlc); 478 } 479 480 /* 481 * We need to allocate the ct here, since we might 482 * need it when reading the CIS 483 */ 484 if ((ct = 485 (cardbus_devfunc_t)malloc(sizeof(struct cardbus_devfunc), 486 M_DEVBUF, M_NOWAIT)) == NULL) 487 panic("no room for cardbus_tag"); 488 489 ct->ct_cc = sc->sc_cc; 490 ct->ct_cf = sc->sc_cf; 491 ct->ct_bus = sc->sc_bus; 492 ct->ct_dev = sc->sc_device; 493 ct->ct_func = function; 494 ct->ct_sc = sc; 495 sc->sc_funcs[function] = ct; 496 497 memset(&ca, 0, sizeof(ca)); 498 499 ca.ca_unit = sc->sc_dev.dv_unit; 500 ca.ca_ct = ct; 501 502 ca.ca_iot = sc->sc_iot; 503 ca.ca_memt = sc->sc_memt; 504 ca.ca_dmat = sc->sc_dmat; 505 ca.ca_rbus_iot = sc->sc_rbus_iot; 506 ca.ca_rbus_memt = sc->sc_rbus_memt; 507 ca.ca_tag = tag; 508 ca.ca_bus = sc->sc_bus; 509 ca.ca_device = sc->sc_device; 510 ca.ca_function = function; 511 ca.ca_id = id; 512 ca.ca_class = class; 513 ca.ca_pc = sc->sc_pc; 514 515 ca.ca_intrline = sc->sc_intrline; 516 517 if (cis_ptr != 0) { 518 if (cardbus_read_tuples(&ca, cis_ptr, tuple, 2048)) { 519 printf("cardbus_attach_card: failed to " 520 "read CIS\n"); 521 } else { 522 #ifdef CARDBUS_DEBUG 523 decode_tuples(tuple, 2048, print_tuple, NULL); 524 #endif 525 decode_tuples(tuple, 2048, parse_tuple, 526 &ca.ca_cis); 527 } 528 } 529 530 if ((csc = config_found_sm((void *)sc, &ca, cardbusprint, 531 cardbussubmatch)) == NULL) { 532 /* do not match */ 533 disable_function(sc, function); 534 sc->sc_funcs[function] = NULL; 535 free(ct, M_DEVBUF, sizeof(struct cardbus_devfunc)); 536 } else { 537 /* found */ 538 ct->ct_device = csc; 539 ++no_work_funcs; 540 } 541 } 542 /* 543 * XXX power down pseudo function 8 (this will power down the card 544 * if no functions were attached). 545 */ 546 disable_function(sc, 8); 547 free(tuple, M_TEMP, 2048); 548 549 return (no_work_funcs); 550 } 551 552 STATIC int 553 cardbussubmatch(struct device *parent, void *match, void *aux) 554 { 555 struct cfdata *cf = match; 556 struct cardbus_attach_args *ca = aux; 557 558 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 559 cf->cardbuscf_dev != ca->ca_unit) { 560 return (0); 561 } 562 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 563 cf->cardbuscf_function != ca->ca_function) { 564 return (0); 565 } 566 567 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 568 } 569 570 STATIC int 571 cardbusprint(void *aux, const char *pnp) 572 { 573 struct cardbus_attach_args *ca = aux; 574 char devinfo[256]; 575 576 if (pnp) { 577 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 578 sizeof(devinfo)); 579 printf("%s at %s", devinfo, pnp); 580 } 581 printf(" dev %d function %d", ca->ca_device, ca->ca_function); 582 if (!pnp) { 583 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, 584 sizeof(devinfo)); 585 printf(" %s", devinfo); 586 } 587 588 return (UNCONF); 589 } 590 591 /* 592 * void cardbus_detach_card(struct cardbus_softc *sc) 593 * 594 * This function detaches the card on the slot: detach device data 595 * structure and turns off the power. 596 * 597 * This function must not be called under interrupt context. 598 */ 599 void 600 cardbus_detach_card(struct cardbus_softc *sc) 601 { 602 struct cardbus_devfunc *ct; 603 int f; 604 605 for (f = 0; f < 8; f++) { 606 ct = sc->sc_funcs[f]; 607 if (ct == NULL) 608 continue; 609 610 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 611 ct->ct_device->dv_xname)); 612 613 if (config_detach(ct->ct_device, 0) != 0) { 614 printf("%s: cannot detach dev %s, function %d\n", 615 sc->sc_dev.dv_xname, ct->ct_device->dv_xname, 616 ct->ct_func); 617 } else { 618 sc->sc_poweron_func &= ~(1 << ct->ct_func); 619 sc->sc_funcs[ct->ct_func] = NULL; 620 free(ct, M_DEVBUF, sizeof(struct cardbus_devfunc)); 621 } 622 } 623 624 sc->sc_poweron_func = 0; 625 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); 626 } 627 628 /* 629 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg, name) 630 * Interrupt handler of pccard. 631 * args: 632 * cardbus_chipset_tag_t *cc 633 * int irq: 634 */ 635 void * 636 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 637 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg, 638 const char *name) 639 { 640 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 641 642 return (*cf->cardbus_intr_establish)(cc, irq, level, func, arg, name); 643 } 644 645 /* 646 * void cardbus_intr_disestablish(cc, cf, handler) 647 * Interrupt handler of pccard. 648 * args: 649 * cardbus_chipset_tag_t *cc 650 */ 651 void 652 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 653 void *handler) 654 { 655 DPRINTF(("- pccard_intr_disestablish\n")); 656 657 (*cf->cardbus_intr_disestablish)(cc, handler); 658 } 659 660 /* XXX this should be merged with cardbus_function_{enable,disable}, 661 but we don't have a ct when these functions are called */ 662 663 STATIC void 664 enable_function(struct cardbus_softc *sc, int cdstatus, int function) 665 { 666 if (sc->sc_poweron_func == 0) { 667 /* switch to 3V and/or wait for power to stabilize */ 668 if (cdstatus & CARDBUS_3V_CARD) { 669 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_3V); 670 } else { 671 /* No cards other than 3.3V cards. */ 672 return; 673 } 674 (sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 675 } 676 sc->sc_poweron_func |= (1 << function); 677 } 678 679 STATIC void 680 disable_function(struct cardbus_softc *sc, int function) 681 { 682 sc->sc_poweron_func &= ~(1 << function); 683 if (sc->sc_poweron_func == 0) { 684 /* power-off because no functions are enabled */ 685 sc->sc_cf->cardbus_power(sc->sc_cc, CARDBUS_VCC_0V); 686 } 687 } 688 689 /* 690 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 691 * 692 * This function enables a function on a card. When no power is 693 * applied on the card, power will be applied on it. 694 */ 695 int 696 cardbus_function_enable(struct cardbus_softc *sc, int func) 697 { 698 pci_chipset_tag_t pc = sc->sc_pc; 699 pcireg_t command; 700 pcitag_t tag; 701 702 DPRINTF(("entering cardbus_function_enable... ")); 703 704 /* entering critical area */ 705 706 /* XXX: sc_vold should be used */ 707 enable_function(sc, CARDBUS_3V_CARD, func); 708 709 /* exiting critical area */ 710 711 tag = pci_make_tag(pc, sc->sc_bus, sc->sc_device, func); 712 713 command = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 714 command |= (PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_IO_ENABLE | 715 PCI_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 716 717 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, command); 718 719 DPRINTF(("%x\n", sc->sc_poweron_func)); 720 721 return (0); 722 } 723 724 /* 725 * int cardbus_function_disable(struct cardbus_softc *, int func) 726 * 727 * This function disable a function on a card. When no functions are 728 * enabled, it turns off the power. 729 */ 730 int 731 cardbus_function_disable(struct cardbus_softc *sc, int func) 732 { 733 DPRINTF(("entering cardbus_function_disable... ")); 734 735 disable_function(sc, func); 736 737 return (0); 738 } 739 740 int 741 cardbus_matchbyid(struct cardbus_attach_args *ca, 742 const struct pci_matchid *ids, int nent) 743 { 744 const struct pci_matchid *pm; 745 int i; 746 747 for (i = 0, pm = ids; i < nent; i++, pm++) 748 if (PCI_VENDOR(ca->ca_id) == pm->pm_vid && 749 PCI_PRODUCT(ca->ca_id) == pm->pm_pid) 750 return (1); 751 return (0); 752 } 753 754 /* 755 * below this line, there are some functions for decoding tuples. 756 * They should go out from this file. 757 */ 758 759 STATIC u_int8_t * 760 decode_tuple(u_int8_t *, u_int8_t *, tuple_decode_func, void *); 761 762 STATIC int 763 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 764 { 765 u_int8_t *tp = tuple; 766 767 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 768 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 769 return (0); 770 } 771 772 while ((tp = decode_tuple(tp, tuple + buflen, func, data)) != NULL) 773 ; 774 775 return (1); 776 } 777 778 STATIC u_int8_t * 779 decode_tuple(u_int8_t *tuple, u_int8_t *end, tuple_decode_func func, 780 void *data) 781 { 782 u_int8_t type; 783 u_int8_t len; 784 785 type = tuple[0]; 786 switch (type) { 787 case PCMCIA_CISTPL_NULL: 788 case PCMCIA_CISTPL_END: 789 len = 1; 790 break; 791 default: 792 if (tuple + 2 > end) 793 return (NULL); 794 len = tuple[1] + 2; 795 break; 796 } 797 798 if (tuple + len > end) 799 return (NULL); 800 801 (*func)(tuple, len, data); 802 803 if (PCMCIA_CISTPL_END == type || tuple + len == end) 804 return (NULL); 805 806 return (tuple + len); 807 } 808 809 #ifdef CARDBUS_DEBUG 810 static char *tuple_name(int type); 811 812 static char * 813 tuple_name(int type) 814 { 815 static char *tuple_name_s [] = { 816 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 817 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 818 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 819 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 820 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 821 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", /* 14-17 */ 822 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", /* 18-1B */ 823 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", /* 1C-1E */ 824 "DEVICE_GEO_A", "MANFID", "FUNCID", "FUNCE", "SWIL", /* 1F-23 */ 825 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 826 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 827 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 828 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 829 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 830 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 831 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 832 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", /* 40-43 */ 833 "DATE", "BATTERY", "ORG", "FORMAT_A" /* 44-47 */ 834 }; 835 836 if (type > 0 && type < nitems(tuple_name_s)) 837 return (tuple_name_s[type]); 838 else if (0xff == type) 839 return ("END"); 840 else 841 return ("Reserved"); 842 } 843 844 static void 845 print_tuple(u_int8_t *tuple, int len, void *data) 846 { 847 int i; 848 849 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 850 851 for (i = 0; i < len; ++i) { 852 if (i % 16 == 0) 853 printf(" 0x%02x:", i); 854 printf(" %x",tuple[i]); 855 if (i % 16 == 15) 856 printf("\n"); 857 } 858 if (i % 16 != 0) 859 printf("\n"); 860 } 861 #endif
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