cardbus.c revision 1.49
1 /* $NetBSD: cardbus.c,v 1.49 2004/05/08 23:40:01 christos 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 1.49 2004/05/08 23:40:01 christos 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 CFATTACH_DECL(cardbus, sizeof(struct cardbus_softc), 91 cardbusmatch, cardbusattach, NULL, NULL); 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(struct device *parent, struct cfdata *cf, void *aux) 102 { 103 struct cbslot_attach_args *cba = aux; 104 105 if (strcmp(cba->cba_busname, cf->cf_name)) { 106 DPRINTF(("cardbusmatch: busname differs %s <=> %s\n", 107 cba->cba_busname, cf->cf_name)); 108 return (0); 109 } 110 111 return (1); 112 } 113 114 STATIC void 115 cardbusattach(struct device *parent, struct device *self, void *aux) 116 { 117 struct cardbus_softc *sc = (void *)self; 118 struct cbslot_attach_args *cba = aux; 119 120 sc->sc_bus = cba->cba_bus; 121 sc->sc_device = 0; 122 sc->sc_intrline = cba->cba_intrline; 123 sc->sc_cacheline = cba->cba_cacheline; 124 sc->sc_lattimer = cba->cba_lattimer; 125 126 printf(": bus %d device %d", sc->sc_bus, sc->sc_device); 127 if (bootverbose) 128 printf(" cacheline 0x%x, lattimer 0x%x", sc->sc_cacheline, 129 sc->sc_lattimer); 130 printf("\n"); 131 132 sc->sc_iot = cba->cba_iot; /* CardBus I/O space tag */ 133 sc->sc_memt = cba->cba_memt; /* CardBus MEM space tag */ 134 sc->sc_dmat = cba->cba_dmat; /* DMA tag */ 135 sc->sc_cc = cba->cba_cc; 136 sc->sc_cf = cba->cba_cf; 137 138 #if rbus 139 sc->sc_rbus_iot = cba->cba_rbus_iot; 140 sc->sc_rbus_memt = cba->cba_rbus_memt; 141 #endif 142 143 sc->sc_funcs = NULL; 144 } 145 146 static int 147 cardbus_read_tuples(struct cardbus_attach_args *ca, cardbusreg_t cis_ptr, 148 u_int8_t *tuples, size_t len) 149 { 150 struct cardbus_softc *sc = ca->ca_ct->ct_sc; 151 cardbus_chipset_tag_t cc = ca->ca_ct->ct_cc; 152 cardbus_function_tag_t cf = ca->ca_ct->ct_cf; 153 cardbustag_t tag = ca->ca_tag; 154 cardbusreg_t command; 155 bus_space_tag_t bar_tag; 156 bus_space_handle_t bar_memh; 157 bus_size_t bar_size; 158 bus_addr_t bar_addr; 159 cardbusreg_t reg; 160 int found = 0; 161 int cardbus_space = cis_ptr & CARDBUS_CIS_ASIMASK; 162 int i, j; 163 164 memset(tuples, 0, len); 165 166 cis_ptr = cis_ptr & CARDBUS_CIS_ADDRMASK; 167 168 switch (cardbus_space) { 169 case CARDBUS_CIS_ASI_TUPLE: 170 DPRINTF(("%s: reading CIS data from configuration space\n", 171 sc->sc_dev.dv_xname)); 172 for (i = cis_ptr, j = 0; i < 0xff; i += 4) { 173 u_int32_t e = (*cf->cardbus_conf_read)(cc, tag, i); 174 tuples[j] = 0xff & e; 175 e >>= 8; 176 tuples[j + 1] = 0xff & e; 177 e >>= 8; 178 tuples[j + 2] = 0xff & e; 179 e >>= 8; 180 tuples[j + 3] = 0xff & e; 181 j += 4; 182 } 183 found++; 184 break; 185 186 case CARDBUS_CIS_ASI_BAR0: 187 case CARDBUS_CIS_ASI_BAR1: 188 case CARDBUS_CIS_ASI_BAR2: 189 case CARDBUS_CIS_ASI_BAR3: 190 case CARDBUS_CIS_ASI_BAR4: 191 case CARDBUS_CIS_ASI_BAR5: 192 case CARDBUS_CIS_ASI_ROM: 193 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 194 reg = CARDBUS_ROM_REG; 195 DPRINTF(("%s: reading CIS data from ROM\n", 196 sc->sc_dev.dv_xname)); 197 } else { 198 reg = CARDBUS_BASE0_REG + (cardbus_space - 1) * 4; 199 DPRINTF(("%s: reading CIS data from BAR%d\n", 200 sc->sc_dev.dv_xname, cardbus_space - 1)); 201 } 202 203 /* 204 * XXX zero register so mapreg_map doesn't get confused by old 205 * contents. 206 */ 207 cardbus_conf_write(cc, cf, tag, reg, 0); 208 if (Cardbus_mapreg_map(ca->ca_ct, reg, 209 CARDBUS_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 210 0, &bar_tag, &bar_memh, &bar_addr, &bar_size)) { 211 printf("%s: failed to map memory\n", 212 sc->sc_dev.dv_xname); 213 return (1); 214 } 215 216 if (cardbus_space == CARDBUS_CIS_ASI_ROM) { 217 cardbusreg_t exrom; 218 int save; 219 struct cardbus_rom_image_head rom_image; 220 struct cardbus_rom_image *p; 221 222 save = splhigh(); 223 /* enable rom address decoder */ 224 exrom = cardbus_conf_read(cc, cf, tag, reg); 225 cardbus_conf_write(cc, cf, tag, reg, exrom | 1); 226 227 command = cardbus_conf_read(cc, cf, tag, 228 CARDBUS_COMMAND_STATUS_REG); 229 cardbus_conf_write(cc, cf, tag, 230 CARDBUS_COMMAND_STATUS_REG, 231 command | CARDBUS_COMMAND_MEM_ENABLE); 232 233 if (cardbus_read_exrom(ca->ca_memt, bar_memh, 234 &rom_image)) 235 goto out; 236 237 SIMPLEQ_FOREACH(p, &rom_image, next) { 238 if (p->rom_image == 239 CARDBUS_CIS_ASI_ROM_IMAGE(cis_ptr)) { 240 bus_space_read_region_1(p->romt, 241 p->romh, CARDBUS_CIS_ADDR(cis_ptr), 242 tuples, 256); 243 found++; 244 } 245 break; 246 } 247 while ((p = SIMPLEQ_FIRST(&rom_image)) != NULL) { 248 SIMPLEQ_REMOVE_HEAD(&rom_image, next); 249 free(p, M_DEVBUF); 250 } 251 out: 252 exrom = cardbus_conf_read(cc, cf, tag, reg); 253 cardbus_conf_write(cc, cf, tag, reg, exrom & ~1); 254 splx(save); 255 } else { 256 command = cardbus_conf_read(cc, cf, tag, 257 CARDBUS_COMMAND_STATUS_REG); 258 cardbus_conf_write(cc, cf, tag, 259 CARDBUS_COMMAND_STATUS_REG, 260 command | CARDBUS_COMMAND_MEM_ENABLE); 261 /* XXX byte order? */ 262 bus_space_read_region_1(ca->ca_memt, bar_memh, 263 cis_ptr, tuples, 256); 264 found++; 265 } 266 command = cardbus_conf_read(cc, cf, tag, 267 CARDBUS_COMMAND_STATUS_REG); 268 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, 269 command & ~CARDBUS_COMMAND_MEM_ENABLE); 270 cardbus_conf_write(cc, cf, tag, reg, 0); 271 272 Cardbus_mapreg_unmap(ca->ca_ct, reg, bar_tag, bar_memh, 273 bar_size); 274 break; 275 276 #ifdef DIAGNOSTIC 277 default: 278 panic("%s: bad CIS space (%d)", sc->sc_dev.dv_xname, 279 cardbus_space); 280 #endif 281 } 282 return (!found); 283 } 284 285 static void 286 parse_tuple(u_int8_t *tuple, int len, void *data) 287 { 288 struct cardbus_cis_info *cis = data; 289 char *p; 290 int i, bar_index; 291 292 switch (tuple[0]) { 293 case PCMCIA_CISTPL_MANFID: 294 if (tuple[1] != 5) { 295 DPRINTF(("%s: wrong length manufacturer id (%d)\n", 296 __func__, tuple[1])); 297 break; 298 } 299 cis->manufacturer = tuple[2] | (tuple[3] << 8); 300 cis->product = tuple[4] | (tuple[5] << 8); 301 break; 302 303 case PCMCIA_CISTPL_VERS_1: 304 memcpy(cis->cis1_info_buf, tuple + 2, tuple[1]); 305 i = 0; 306 p = cis->cis1_info_buf + 2; 307 while (i < 308 sizeof(cis->cis1_info) / sizeof(cis->cis1_info[0])) { 309 cis->cis1_info[i++] = p; 310 while (*p != '\0' && *p != '\xff') 311 p++; 312 if (*p == '\xff') 313 break; 314 p++; 315 } 316 break; 317 318 case PCMCIA_CISTPL_BAR: 319 if (tuple[1] != 6) { 320 DPRINTF(("%s: BAR with short length (%d)\n", 321 __func__, tuple[1])); 322 break; 323 } 324 bar_index = tuple[2] & 7; 325 if (bar_index == 0) { 326 DPRINTF(("%s: invalid ASI in BAR tuple\n", __func__)); 327 break; 328 } 329 bar_index--; 330 cis->bar[bar_index].flags = tuple[2]; 331 cis->bar[bar_index].size = 332 (tuple[4] << 0) | 333 (tuple[5] << 8) | 334 (tuple[6] << 16) | 335 (tuple[7] << 24); 336 break; 337 338 case PCMCIA_CISTPL_FUNCID: 339 cis->funcid = tuple[2]; 340 break; 341 342 case PCMCIA_CISTPL_FUNCE: 343 switch (cis->funcid) { 344 case PCMCIA_FUNCTION_SERIAL: 345 if (tuple[1] >= 2 && 346 /* XXX PCMCIA_TPLFE_TYPE_SERIAL_??? */ 347 tuple[2] == 0) { 348 cis->funce.serial.uart_type = tuple[3] & 0x1f; 349 cis->funce.serial.uart_present = 1; 350 } 351 break; 352 353 case PCMCIA_FUNCTION_NETWORK: 354 if (tuple[1] >= 8 && 355 tuple[2] == PCMCIA_TPLFE_TYPE_LAN_NID) { 356 if (tuple[3] > 357 sizeof(cis->funce.network.netid)) { 358 DPRINTF(("%s: unknown network id type " 359 "(len = %d)\n", 360 __func__, tuple[3])); 361 } else { 362 cis->funce.network.netid_present = 1; 363 memcpy(cis->funce.network.netid, 364 tuple + 4, tuple[3]); 365 } 366 } 367 break; 368 } 369 break; 370 } 371 } 372 373 /* 374 * int cardbus_attach_card(struct cardbus_softc *sc) 375 * 376 * This function attaches the card on the slot: turns on power, 377 * reads and analyses tuple, sets configuration index. 378 * 379 * This function returns the number of recognised device functions. 380 * If no functions are recognised, return 0. 381 */ 382 int 383 cardbus_attach_card(struct cardbus_softc *sc) 384 { 385 cardbus_chipset_tag_t cc; 386 cardbus_function_tag_t cf; 387 cardbustag_t tag; 388 cardbusreg_t id, class, cis_ptr; 389 cardbusreg_t bhlc; 390 u_int8_t tuple[2048]; 391 int cdstatus; 392 int function, nfunction; 393 struct cardbus_devfunc **previous_next = &(sc->sc_funcs); 394 struct device *csc; 395 int no_work_funcs = 0; 396 cardbus_devfunc_t ct; 397 398 cc = sc->sc_cc; 399 cf = sc->sc_cf; 400 401 DPRINTF(("cardbus_attach_card: cb%d start\n", sc->sc_dev.dv_unit)); 402 403 /* inspect initial voltage */ 404 if ((cdstatus = (*cf->cardbus_ctrl)(cc, CARDBUS_CD)) == 0) { 405 DPRINTF(("cardbusattach: no CardBus card on cb%d\n", 406 sc->sc_dev.dv_unit)); 407 return (0); 408 } 409 410 /* 411 * XXX use fake function 8 to keep power on during whole 412 * configuration. 413 */ 414 enable_function(sc, cdstatus, 8); 415 function = 0; 416 417 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, function); 418 419 /* 420 * Wait until power comes up. Maxmum 500 ms. 421 */ 422 { 423 int i; 424 425 for (i = 0; i < 5; ++i) { 426 id = cardbus_conf_read(cc, cf, tag, CARDBUS_ID_REG); 427 if (id != 0xffffffff && id != 0) { 428 break; 429 } 430 if (cold) { /* before kernel thread invoked */ 431 delay(100 * 1000); 432 } else { /* thread context */ 433 if (tsleep((void *)sc, PCATCH, "cardbus", 434 hz / 10) != EWOULDBLOCK) { 435 break; 436 } 437 } 438 } 439 if (i == 5) { 440 return (0); 441 } 442 } 443 444 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 445 DPRINTF(("%s bhlc 0x%08x -> ", sc->sc_dev.dv_xname, bhlc)); 446 nfunction = CARDBUS_HDRTYPE_MULTIFN(bhlc) ? 8 : 1; 447 448 for (function = 0; function < nfunction; function++) { 449 struct cardbus_attach_args ca; 450 451 tag = cardbus_make_tag(cc, cf, sc->sc_bus, sc->sc_device, 452 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: " 464 "Vendor 0x%x, Product 0x%x, CIS 0x%x\n", 465 CARDBUS_VENDOR(id), CARDBUS_PRODUCT(id), cis_ptr)); 466 467 enable_function(sc, cdstatus, function); 468 469 /* clean up every BAR */ 470 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE0_REG, 0); 471 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE1_REG, 0); 472 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE2_REG, 0); 473 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE3_REG, 0); 474 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE4_REG, 0); 475 cardbus_conf_write(cc, cf, tag, CARDBUS_BASE5_REG, 0); 476 cardbus_conf_write(cc, cf, tag, CARDBUS_ROM_REG, 0); 477 478 /* set initial latency and cacheline size */ 479 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 480 DPRINTF(("%s func%d bhlc 0x%08x -> ", sc->sc_dev.dv_xname, 481 function, bhlc)); 482 bhlc &= ~((CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT) | 483 (CARDBUS_CACHELINE_MASK << CARDBUS_CACHELINE_SHIFT)); 484 bhlc |= ((sc->sc_cacheline & CARDBUS_CACHELINE_MASK) << CARDBUS_CACHELINE_SHIFT); 485 bhlc |= ((sc->sc_lattimer & CARDBUS_LATTIMER_MASK) << CARDBUS_LATTIMER_SHIFT); 486 487 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 488 bhlc = cardbus_conf_read(cc, cf, tag, CARDBUS_BHLC_REG); 489 DPRINTF(("0x%08x\n", bhlc)); 490 491 if (CARDBUS_LATTIMER(bhlc) < 0x10) { 492 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 493 bhlc |= (0x10 << CARDBUS_LATTIMER_SHIFT); 494 cardbus_conf_write(cc, cf, tag, CARDBUS_BHLC_REG, bhlc); 495 } 496 497 /* 498 * We need to allocate the ct here, since we might 499 * need it when reading the CIS 500 */ 501 if ((ct = malloc(sizeof(struct cardbus_devfunc), 502 M_DEVBUF, M_NOWAIT)) == NULL) { 503 panic("no room for cardbus_tag"); 504 } 505 506 ct->ct_cc = sc->sc_cc; 507 ct->ct_cf = sc->sc_cf; 508 ct->ct_bus = sc->sc_bus; 509 ct->ct_dev = sc->sc_device; 510 ct->ct_func = function; 511 ct->ct_sc = sc; 512 ct->ct_next = NULL; 513 *previous_next = ct; 514 515 memset(&ca, 0, sizeof(ca)); 516 517 ca.ca_unit = sc->sc_dev.dv_unit; 518 ca.ca_ct = ct; 519 520 ca.ca_iot = sc->sc_iot; 521 ca.ca_memt = sc->sc_memt; 522 ca.ca_dmat = sc->sc_dmat; 523 524 #if rbus 525 ca.ca_rbus_iot = sc->sc_rbus_iot; 526 ca.ca_rbus_memt= sc->sc_rbus_memt; 527 #endif 528 529 ca.ca_tag = tag; 530 ca.ca_bus = sc->sc_bus; 531 ca.ca_device = sc->sc_device; 532 ca.ca_function = function; 533 ca.ca_id = id; 534 ca.ca_class = class; 535 536 ca.ca_intrline = sc->sc_intrline; 537 538 if (cardbus_read_tuples(&ca, cis_ptr, tuple, sizeof(tuple))) { 539 printf("cardbus_attach_card: failed to read CIS\n"); 540 } else { 541 #ifdef CARDBUS_DEBUG 542 decode_tuples(tuple, 2048, print_tuple, NULL); 543 #endif 544 decode_tuples(tuple, 2048, parse_tuple, &ca.ca_cis); 545 } 546 547 if ((csc = config_found_sm((void *)sc, &ca, cardbusprint, 548 cardbussubmatch)) == NULL) { 549 /* do not match */ 550 disable_function(sc, function); 551 free(ct, M_DEVBUF); 552 *previous_next = NULL; 553 } else { 554 /* found */ 555 previous_next = &(ct->ct_next); 556 ct->ct_device = csc; 557 ++no_work_funcs; 558 } 559 } 560 /* 561 * XXX power down pseudo function 8 (this will power down the card 562 * if no functions were attached). 563 */ 564 disable_function(sc, 8); 565 566 return (no_work_funcs); 567 } 568 569 static int 570 cardbussubmatch(struct device *parent, struct cfdata *cf, void *aux) 571 { 572 struct cardbus_attach_args *ca = aux; 573 574 if (cf->cardbuscf_dev != CARDBUS_UNK_DEV && 575 cf->cardbuscf_dev != ca->ca_unit) { 576 return (0); 577 } 578 if (cf->cardbuscf_function != CARDBUS_UNK_FUNCTION && 579 cf->cardbuscf_function != ca->ca_function) { 580 return (0); 581 } 582 583 return (config_match(parent, cf, aux)); 584 } 585 586 static int 587 cardbusprint(void *aux, const char *pnp) 588 { 589 struct cardbus_attach_args *ca = aux; 590 char devinfo[256]; 591 int i; 592 593 if (pnp) { 594 pci_devinfo(ca->ca_id, ca->ca_class, 1, devinfo, 595 sizeof(devinfo)); 596 for (i = 0; i < 4; i++) { 597 if (ca->ca_cis.cis1_info[i] == NULL) 598 break; 599 if (i) 600 aprint_normal(", "); 601 aprint_normal("%s", ca->ca_cis.cis1_info[i]); 602 } 603 aprint_verbose("%s(manufacturer 0x%x, product 0x%x)", 604 i ? " " : "", 605 ca->ca_cis.manufacturer, ca->ca_cis.product); 606 aprint_normal(" %s at %s", devinfo, pnp); 607 } 608 aprint_normal(" dev %d function %d", ca->ca_device, ca->ca_function); 609 610 return (UNCONF); 611 } 612 613 /* 614 * void cardbus_detach_card(struct cardbus_softc *sc) 615 * 616 * This function detaches the card on the slot: detach device data 617 * structure and turns off the power. 618 * 619 * This function must not be called under interrupt context. 620 */ 621 void 622 cardbus_detach_card(struct cardbus_softc *sc) 623 { 624 struct cardbus_devfunc *ct, *ct_next, **prev_next; 625 626 prev_next = &(sc->sc_funcs->ct_next); 627 628 for (ct = sc->sc_funcs; ct != NULL; ct = ct_next) { 629 struct device *fndev = ct->ct_device; 630 ct_next = ct->ct_next; 631 632 DPRINTF(("%s: detaching %s\n", sc->sc_dev.dv_xname, 633 fndev->dv_xname)); 634 /* call device detach function */ 635 636 if (0 != config_detach(fndev, 0)) { 637 printf("%s: cannot detach dev %s, function %d\n", 638 sc->sc_dev.dv_xname, fndev->dv_xname, ct->ct_func); 639 prev_next = &(ct->ct_next); 640 } else { 641 sc->sc_poweron_func &= ~(1 << ct->ct_func); 642 *prev_next = ct->ct_next; 643 free(ct, M_DEVBUF); 644 } 645 } 646 647 sc->sc_poweron_func = 0; 648 (*sc->sc_cf->cardbus_power)(sc->sc_cc, 649 CARDBUS_VCC_0V | CARDBUS_VPP_0V); 650 } 651 652 /* 653 * void *cardbus_intr_establish(cc, cf, irq, level, func, arg) 654 * Interrupt handler of pccard. 655 * args: 656 * cardbus_chipset_tag_t *cc 657 * int irq: 658 */ 659 void * 660 cardbus_intr_establish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 661 cardbus_intr_handle_t irq, int level, int (*func)(void *), void *arg) 662 { 663 664 DPRINTF(("- cardbus_intr_establish: irq %d\n", irq)); 665 return ((*cf->cardbus_intr_establish)(cc, irq, level, func, arg)); 666 } 667 668 /* 669 * void cardbus_intr_disestablish(cc, cf, handler) 670 * Interrupt handler of pccard. 671 * args: 672 * cardbus_chipset_tag_t *cc 673 */ 674 void 675 cardbus_intr_disestablish(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 676 void *handler) 677 { 678 679 DPRINTF(("- pccard_intr_disestablish\n")); 680 (*cf->cardbus_intr_disestablish)(cc, handler); 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(struct cardbus_softc *sc, int cdstatus, int function) 689 { 690 691 if (sc->sc_poweron_func == 0) { 692 /* switch to 3V and/or wait for power to stabilize */ 693 if (cdstatus & CARDBUS_3V_CARD) { 694 /* 695 * sc_poweron_func must be substituted before 696 * entering sleep, in order to avoid turn on 697 * power twice. 698 */ 699 sc->sc_poweron_func |= (1 << function); 700 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_3V); 701 } else { 702 /* No cards other than 3.3V cards. */ 703 return; 704 } 705 (*sc->sc_cf->cardbus_ctrl)(sc->sc_cc, CARDBUS_RESET); 706 } 707 sc->sc_poweron_func |= (1 << function); 708 } 709 710 static void 711 disable_function(struct cardbus_softc *sc, int function) 712 { 713 714 sc->sc_poweron_func &= ~(1 << function); 715 if (sc->sc_poweron_func == 0) { 716 /* power-off because no functions are enabled */ 717 (*sc->sc_cf->cardbus_power)(sc->sc_cc, CARDBUS_VCC_0V); 718 } 719 } 720 721 /* 722 * int cardbus_function_enable(struct cardbus_softc *sc, int func) 723 * 724 * This function enables a function on a card. When no power is 725 * applied on the card, power will be applied on it. 726 */ 727 int 728 cardbus_function_enable(struct cardbus_softc *sc, int func) 729 { 730 cardbus_chipset_tag_t cc = sc->sc_cc; 731 cardbus_function_tag_t cf = sc->sc_cf; 732 cardbusreg_t command; 733 cardbustag_t tag; 734 735 DPRINTF(("entering cardbus_function_enable... ")); 736 737 /* entering critical area */ 738 739 /* XXX: sc_vold should be used */ 740 enable_function(sc, CARDBUS_3V_CARD, func); 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 | 748 CARDBUS_COMMAND_MASTER_ENABLE); /* XXX: good guess needed */ 749 750 cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG, command); 751 752 cardbus_free_tag(cc, cf, tag); 753 754 DPRINTF(("%x\n", sc->sc_poweron_func)); 755 756 return (0); 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(struct cardbus_softc *sc, int func) 767 { 768 769 DPRINTF(("entering cardbus_function_disable... ")); 770 771 disable_function(sc, func); 772 773 return (0); 774 } 775 776 /* 777 * int cardbus_get_capability(cardbus_chipset_tag_t cc, 778 * cardbus_function_tag_t cf, cardbustag_t tag, int capid, int *offset, 779 * cardbusreg_t *value) 780 * 781 * Find the specified PCI capability. 782 */ 783 int 784 cardbus_get_capability(cardbus_chipset_tag_t cc, cardbus_function_tag_t cf, 785 cardbustag_t tag, int capid, int *offset, cardbusreg_t *value) 786 { 787 cardbusreg_t reg; 788 unsigned int ofs; 789 790 reg = cardbus_conf_read(cc, cf, tag, PCI_COMMAND_STATUS_REG); 791 if (!(reg & PCI_STATUS_CAPLIST_SUPPORT)) 792 return (0); 793 794 ofs = PCI_CAPLIST_PTR(cardbus_conf_read(cc, cf, tag, 795 PCI_CAPLISTPTR_REG)); 796 while (ofs != 0) { 797 #ifdef DIAGNOSTIC 798 if ((ofs & 3) || (ofs < 0x40)) 799 panic("cardbus_get_capability"); 800 #endif 801 reg = cardbus_conf_read(cc, cf, tag, ofs); 802 if (PCI_CAPLIST_CAP(reg) == capid) { 803 if (offset) 804 *offset = ofs; 805 if (value) 806 *value = reg; 807 return (1); 808 } 809 ofs = PCI_CAPLIST_NEXT(reg); 810 } 811 812 return (0); 813 } 814 815 /* 816 * below this line, there are some functions for decoding tuples. 817 * They should go out from this file. 818 */ 819 820 static u_int8_t * 821 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data); 822 823 static int 824 decode_tuples(u_int8_t *tuple, int buflen, tuple_decode_func func, void *data) 825 { 826 u_int8_t *tp = tuple; 827 828 if (PCMCIA_CISTPL_LINKTARGET != *tuple) { 829 DPRINTF(("WRONG TUPLE: 0x%x\n", *tuple)); 830 return (0); 831 } 832 833 while (NULL != (tp = decode_tuple(tp, func, data))) { 834 if (tuple + buflen < tp) { 835 break; 836 } 837 } 838 839 return (1); 840 } 841 842 static u_int8_t * 843 decode_tuple(u_int8_t *tuple, tuple_decode_func func, void *data) 844 { 845 u_int8_t type; 846 u_int8_t len; 847 848 type = tuple[0]; 849 len = tuple[1] + 2; 850 851 (*func)(tuple, len, data); 852 853 if (type == PCMCIA_CISTPL_END) { 854 return (NULL); 855 } 856 857 return (tuple + len); 858 } 859 860 /* 861 * XXX: this is another reason why this code should be shared with PCI. 862 */ 863 int 864 cardbus_powerstate(cardbus_devfunc_t ct, pcitag_t tag, const int *newstate, 865 int *oldstate) 866 { 867 cardbus_chipset_tag_t cc = ct->ct_cc; 868 cardbus_function_tag_t cf = ct->ct_cf; 869 870 int offset; 871 pcireg_t value, cap, now; 872 873 if (!cardbus_get_capability(cc, cf, tag, PCI_CAP_PWRMGMT, &offset, 874 &value)) 875 return EOPNOTSUPP; 876 877 cap = value >> 16; 878 value = cardbus_conf_read(cc, cf, tag, offset + PCI_PMCSR); 879 now = value & PCI_PMCSR_STATE_MASK; 880 value &= ~PCI_PMCSR_STATE_MASK; 881 if (oldstate) { 882 switch (now) { 883 case PCI_PMCSR_STATE_D0: 884 *oldstate = PCI_PWR_D0; 885 break; 886 case PCI_PMCSR_STATE_D1: 887 *oldstate = PCI_PWR_D1; 888 break; 889 case PCI_PMCSR_STATE_D2: 890 *oldstate = PCI_PWR_D2; 891 break; 892 case PCI_PMCSR_STATE_D3: 893 *oldstate = PCI_PWR_D3; 894 break; 895 default: 896 return EINVAL; 897 } 898 } 899 if (newstate == NULL) 900 return 0; 901 switch (*newstate) { 902 case PCI_PWR_D0: 903 if (now == PCI_PMCSR_STATE_D0) 904 return 0; 905 value |= PCI_PMCSR_STATE_D0; 906 break; 907 case PCI_PWR_D1: 908 if (now == PCI_PMCSR_STATE_D1) 909 return 0; 910 if (now == PCI_PMCSR_STATE_D2 || now == PCI_PMCSR_STATE_D3) 911 return EINVAL; 912 if (!(cap & PCI_PMCR_D1SUPP)) 913 return EOPNOTSUPP; 914 value |= PCI_PMCSR_STATE_D1; 915 break; 916 case PCI_PWR_D2: 917 if (now == PCI_PMCSR_STATE_D2) 918 return 0; 919 if (now == PCI_PMCSR_STATE_D3) 920 return EINVAL; 921 if (!(cap & PCI_PMCR_D2SUPP)) 922 return EOPNOTSUPP; 923 value |= PCI_PMCSR_STATE_D2; 924 break; 925 case PCI_PWR_D3: 926 if (now == PCI_PMCSR_STATE_D3) 927 return 0; 928 value |= PCI_PMCSR_STATE_D3; 929 break; 930 default: 931 return EINVAL; 932 } 933 cardbus_conf_write(cc, cf, tag, offset + PCI_PMCSR, value); 934 DELAY(1000); 935 936 return 0; 937 } 938 939 int 940 cardbus_setpowerstate(const char *dvname, cardbus_devfunc_t ct, pcitag_t tag, 941 int newpwr) 942 { 943 int oldpwr, error; 944 945 if ((error = cardbus_powerstate(ct, tag, &newpwr, &oldpwr)) != 0) 946 return error; 947 948 if (oldpwr == newpwr) 949 return 0; 950 951 if (oldpwr > newpwr) { 952 printf("%s: sleeping to power state D%d\n", dvname, oldpwr); 953 return 0; 954 } 955 956 /* oldpwr < newpwr */ 957 switch (oldpwr) { 958 case PCI_PWR_D3: 959 /* 960 * XXX: This is because none of the devices do 961 * the necessary song and dance for now to wakeup 962 * Once this 963 */ 964 printf("%s: cannot wake up from power state D%d\n", 965 dvname, oldpwr); 966 return EINVAL; 967 default: 968 printf("%s: waking up from power state D%d\n", 969 dvname, oldpwr); 970 return 0; 971 } 972 } 973 974 975 #ifdef CARDBUS_DEBUG 976 static const char *tuple_name(int); 977 static const char *tuple_names[] = { 978 "TPL_NULL", "TPL_DEVICE", "Reserved", "Reserved", /* 0-3 */ 979 "CONFIG_CB", "CFTABLE_ENTRY_CB", "Reserved", "BAR", /* 4-7 */ 980 "Reserved", "Reserved", "Reserved", "Reserved", /* 8-B */ 981 "Reserved", "Reserved", "Reserved", "Reserved", /* C-F */ 982 "CHECKSUM", "LONGLINK_A", "LONGLINK_C", "LINKTARGET", /* 10-13 */ 983 "NO_LINK", "VERS_1", "ALTSTR", "DEVICE_A", 984 "JEDEC_C", "JEDEC_A", "CONFIG", "CFTABLE_ENTRY", 985 "DEVICE_OC", "DEVICE_OA", "DEVICE_GEO", "DEVICE_GEO_A", 986 "MANFID", "FUNCID", "FUNCE", "SWIL", /* 20-23 */ 987 "Reserved", "Reserved", "Reserved", "Reserved", /* 24-27 */ 988 "Reserved", "Reserved", "Reserved", "Reserved", /* 28-2B */ 989 "Reserved", "Reserved", "Reserved", "Reserved", /* 2C-2F */ 990 "Reserved", "Reserved", "Reserved", "Reserved", /* 30-33 */ 991 "Reserved", "Reserved", "Reserved", "Reserved", /* 34-37 */ 992 "Reserved", "Reserved", "Reserved", "Reserved", /* 38-3B */ 993 "Reserved", "Reserved", "Reserved", "Reserved", /* 3C-3F */ 994 "VERS_2", "FORMAT", "GEOMETRY", "BYTEORDER", 995 "DATE", "BATTERY", "ORG" 996 }; 997 #define NAME_LEN(x) (sizeof x / sizeof(x[0])) 998 999 static const char * 1000 tuple_name(int type) 1001 { 1002 1003 if (0 <= type && type < NAME_LEN(tuple_names)) { 1004 return (tuple_names[type]); 1005 } else if (type == 0xff) { 1006 return ("END"); 1007 } else { 1008 return ("Reserved"); 1009 } 1010 } 1011 1012 static void 1013 print_tuple(u_int8_t *tuple, int len, void *data) 1014 { 1015 int i; 1016 1017 printf("tuple: %s len %d\n", tuple_name(tuple[0]), len); 1018 1019 for (i = 0; i < len; ++i) { 1020 if (i % 16 == 0) { 1021 printf(" 0x%2x:", i); 1022 } 1023 printf(" %x", tuple[i]); 1024 if (i % 16 == 15) { 1025 printf("\n"); 1026 } 1027 } 1028 if (i % 16 != 0) { 1029 printf("\n"); 1030 } 1031 } 1032 #endif 1033
Indexes created Mon Sep 29 21:09:56 GMT 2025