1 /* $OpenBSD: if_wi_pci.c,v 1.44 2009/03/29 21:53:52 sthen Exp $ */ 2 3 /* 4 * Copyright (c) 2001-2003 Todd C. Miller <Todd.Miller@courtesan.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 * 18 * Sponsored in part by the Defense Advanced Research Projects 19 * Agency (DARPA) and Air Force Research Laboratory, Air Force 20 * Materiel Command, USAF, under agreement number F39502-99-1-0512. 21 */ 22 23 /* 24 * PCI attachment for the Wavelan driver. There are two basic types 25 * of PCI card supported: 26 * 27 * 1) Cards based on the Prism2.5 Mini-PCI chipset 28 * 2) Cards that use a dumb PCMCIA->PCI bridge 29 * 30 * Only the first type are "true" PCI cards. 31 * 32 * The latter are simply PCMCIA cards (or the guts of same) with some 33 * type of dumb PCMCIA->PCI bridge. They are "dumb" in that they 34 * are not true PCMCIA bridges and really just serve to deal with 35 * the different interrupt types and timings of the ISA vs. PCI bus. 36 * 37 * The following bridge types are supported: 38 * o PLX 9052 (the most common) 39 * o TMD 7160 (found in some NDC/Sohoware NCP130 cards) 40 * o ACEX EP1K30 (really a PLD, found in Symbol cards and their OEMs) 41 */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 #include <sys/timeout.h> 47 #include <sys/socket.h> 48 #include <sys/tree.h> 49 50 #include <net/if.h> 51 #include <net/if_dl.h> 52 #include <net/if_media.h> 53 54 #ifdef INET 55 #include <netinet/in.h> 56 #include <netinet/if_ether.h> 57 #endif 58 59 #include <net80211/ieee80211_var.h> 60 #include <net80211/ieee80211_ioctl.h> 61 62 #include <machine/bus.h> 63 64 #include <dev/pci/pcireg.h> 65 #include <dev/pci/pcivar.h> 66 #include <dev/pci/pcidevs.h> 67 68 #include <dev/ic/if_wireg.h> 69 #include <dev/ic/if_wi_ieee.h> 70 #include <dev/ic/if_wivar.h> 71 72 /* For printing CIS of the actual PCMCIA card */ 73 #define CIS_MFG_NAME_OFFSET 0x16 74 #define CIS_INFO_SIZE 256 75 76 const struct wi_pci_product *wi_pci_lookup(struct pci_attach_args *pa); 77 int wi_pci_match(struct device *, void *, void *); 78 void wi_pci_attach(struct device *, struct device *, void *); 79 int wi_pci_acex_attach(struct pci_attach_args *pa, struct wi_softc *sc); 80 int wi_pci_plx_attach(struct pci_attach_args *pa, struct wi_softc *sc); 81 int wi_pci_tmd_attach(struct pci_attach_args *pa, struct wi_softc *sc); 82 int wi_pci_native_attach(struct pci_attach_args *pa, struct wi_softc *sc); 83 int wi_pci_common_attach(struct pci_attach_args *pa, struct wi_softc *sc); 84 void wi_pci_plx_print_cis(struct wi_softc *); 85 void wi_pci_power(int, void *); 86 87 struct wi_pci_softc { 88 struct wi_softc sc_wi; /* real softc */ 89 void *sc_powerhook; 90 }; 91 92 struct cfattach wi_pci_ca = { 93 sizeof (struct wi_pci_softc), wi_pci_match, wi_pci_attach 94 }; 95 96 static const struct wi_pci_product { 97 pci_vendor_id_t pp_vendor; 98 pci_product_id_t pp_product; 99 int (*pp_attach)(struct pci_attach_args *pa, struct wi_softc *sc); 100 } wi_pci_products[] = { 101 { PCI_VENDOR_GLOBALSUN, PCI_PRODUCT_GLOBALSUN_GL24110P, wi_pci_plx_attach }, 102 { PCI_VENDOR_GLOBALSUN, PCI_PRODUCT_GLOBALSUN_GL24110P02, wi_pci_plx_attach }, 103 { PCI_VENDOR_GLOBALSUN, PCI_PRODUCT_GLOBALSUN_GL24110P03, wi_pci_plx_attach }, 104 { PCI_VENDOR_GLOBALSUN, PCI_PRODUCT_GLOBALSUN_8031, wi_pci_plx_attach }, 105 { PCI_VENDOR_EUMITCOM, PCI_PRODUCT_EUMITCOM_WL11000P, wi_pci_plx_attach }, 106 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_WL11000P, wi_pci_plx_attach }, 107 { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CRWE777A, wi_pci_plx_attach }, 108 { PCI_VENDOR_NETGEAR, PCI_PRODUCT_NETGEAR_MA301, wi_pci_plx_attach }, 109 { PCI_VENDOR_EFFICIENTNETS, PCI_PRODUCT_EFFICIENTNETS_SS1023, wi_pci_plx_attach }, 110 { PCI_VENDOR_ADDTRON, PCI_PRODUCT_ADDTRON_AWA100, wi_pci_plx_attach }, 111 { PCI_VENDOR_BELKIN, PCI_PRODUCT_BELKIN_F5D6000, wi_pci_plx_attach }, 112 { PCI_VENDOR_NDC, PCI_PRODUCT_NDC_NCP130, wi_pci_plx_attach }, 113 { PCI_VENDOR_NDC, PCI_PRODUCT_NDC_NCP130A2, wi_pci_tmd_attach }, 114 { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_MINI_PCI_WLAN, wi_pci_native_attach }, 115 { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3872, wi_pci_native_attach }, 116 { PCI_VENDOR_SAMSUNG, PCI_PRODUCT_SAMSUNG_SWL2210P, wi_pci_native_attach }, 117 { PCI_VENDOR_NORTEL, PCI_PRODUCT_NORTEL_211818A, wi_pci_acex_attach }, 118 { PCI_VENDOR_SYMBOL, PCI_PRODUCT_SYMBOL_LA41X3, wi_pci_acex_attach }, 119 { 0, 0, 0 } 120 }; 121 122 const struct wi_pci_product * 123 wi_pci_lookup(struct pci_attach_args *pa) 124 { 125 const struct wi_pci_product *pp; 126 127 for (pp = wi_pci_products; pp->pp_product != 0; pp++) { 128 if (PCI_VENDOR(pa->pa_id) == pp->pp_vendor && 129 PCI_PRODUCT(pa->pa_id) == pp->pp_product) 130 return (pp); 131 } 132 133 return (NULL); 134 } 135 136 int 137 wi_pci_match(struct device *parent, void *match, void *aux) 138 { 139 return (wi_pci_lookup(aux) != NULL); 140 } 141 142 void 143 wi_pci_attach(struct device *parent, struct device *self, void *aux) 144 { 145 struct wi_pci_softc *psc = (struct wi_pci_softc *)self; 146 struct wi_softc *sc = (struct wi_softc *)self; 147 struct pci_attach_args *pa = aux; 148 const struct wi_pci_product *pp; 149 150 pp = wi_pci_lookup(pa); 151 if (pp->pp_attach(pa, sc) != 0) 152 return; 153 printf("\n"); 154 wi_attach(sc, &wi_func_io); 155 156 psc->sc_powerhook = powerhook_establish(wi_pci_power, sc); 157 } 158 159 void 160 wi_pci_power(int why, void *arg) 161 { 162 struct wi_softc *sc = (struct wi_softc *)arg; 163 164 if (why == PWR_RESUME) { 165 if (sc->sc_ic.ic_if.if_flags & IFF_UP) 166 wi_init(sc); 167 } 168 } 169 170 /* 171 * ACEX EP1K30-based PCMCIA->PCI bridge attachment. 172 * 173 * The ACEX EP1K30 is a programmable logic device (PLD) used as a 174 * PCMCIA->PCI bridge on the Symbol LA4123 and its OEM equivalents 175 * (such as the Nortel E-mobility 211818-A). There are 3 I/O ports: 176 * BAR0 at 0x10 appears to be a command port. 177 * BAR1 at 0x14 contains COR at offset 0xe0. 178 * BAR2 at 0x18 maps the actual PCMCIA card. 179 * 180 * The datasheet for the ACEX EP1K30 is available from Altera but that 181 * doesn't really help much since we don't know how it is programmed. 182 * Details for this attachment were gleaned from a version of the 183 * Linux orinoco driver modified by Tobias Hoffmann based on 184 * what he discoverd from the Windows driver. 185 */ 186 int 187 wi_pci_acex_attach(struct pci_attach_args *pa, struct wi_softc *sc) 188 { 189 bus_space_handle_t commandh, localh, ioh; 190 bus_space_tag_t commandt, localt; 191 bus_space_tag_t iot = pa->pa_iot; 192 bus_size_t commandsize, localsize, iosize; 193 int i; 194 195 if (pci_mapreg_map(pa, WI_ACEX_CMDRES, PCI_MAPREG_TYPE_IO, 196 0, &commandt, &commandh, NULL, &commandsize, 0) != 0) { 197 printf(": can't map command i/o space\n"); 198 return (ENXIO); 199 } 200 201 if (pci_mapreg_map(pa, WI_ACEX_LOCALRES, PCI_MAPREG_TYPE_IO, 202 0, &localt, &localh, NULL, &localsize, 0) != 0) { 203 printf(": can't map local i/o space\n"); 204 bus_space_unmap(commandt, commandh, commandsize); 205 return (ENXIO); 206 } 207 sc->wi_ltag = localt; 208 sc->wi_lhandle = localh; 209 210 if (pci_mapreg_map(pa, WI_TMD_IORES, PCI_MAPREG_TYPE_IO, 211 0, &iot, &ioh, NULL, &iosize, 0) != 0) { 212 printf(": can't map i/o space\n"); 213 bus_space_unmap(localt, localh, localsize); 214 bus_space_unmap(commandt, commandh, commandsize); 215 return (ENXIO); 216 } 217 sc->wi_btag = iot; 218 sc->wi_bhandle = ioh; 219 220 /* 221 * Setup bridge chip. 222 */ 223 if (bus_space_read_4(commandt, commandh, 0) & 1) { 224 printf(": bridge not ready\n"); 225 bus_space_unmap(iot, ioh, iosize); 226 bus_space_unmap(localt, localh, localsize); 227 bus_space_unmap(commandt, commandh, commandsize); 228 return (ENXIO); 229 } 230 bus_space_write_4(commandt, commandh, 2, 0x118); 231 bus_space_write_4(commandt, commandh, 2, 0x108); 232 DELAY(30 * 1000); 233 bus_space_write_4(commandt, commandh, 2, 0x8); 234 for (i = 0; i < 30; i++) { 235 DELAY(30 * 1000); 236 if (bus_space_read_4(commandt, commandh, 0) & 0x10) 237 break; 238 } 239 if (i == 30) { 240 printf(": bridge timeout\n"); 241 bus_space_unmap(iot, ioh, iosize); 242 bus_space_unmap(localt, localh, localsize); 243 bus_space_unmap(commandt, commandh, commandsize); 244 return (ENXIO); 245 } 246 if ((bus_space_read_4(localt, localh, 0xe0) & 1) || 247 (bus_space_read_4(localt, localh, 0xe2) & 1) || 248 (bus_space_read_4(localt, localh, 0xe4) & 1)) { 249 printf(": failed bridge setup\n"); 250 bus_space_unmap(iot, ioh, iosize); 251 bus_space_unmap(localt, localh, localsize); 252 bus_space_unmap(commandt, commandh, commandsize); 253 return (ENXIO); 254 } 255 256 if (wi_pci_common_attach(pa, sc) != 0) { 257 bus_space_unmap(iot, ioh, iosize); 258 bus_space_unmap(localt, localh, localsize); 259 bus_space_unmap(commandt, commandh, commandsize); 260 return (ENXIO); 261 } 262 263 /* 264 * Enable I/O mode and level interrupts on the embedded PCMCIA 265 * card. 266 */ 267 bus_space_write_1(localt, localh, WI_ACEX_COR_OFFSET, WI_COR_IOMODE); 268 sc->wi_cor_offset = WI_ACEX_COR_OFFSET; 269 270 /* Unmap registers we no longer need access to. */ 271 bus_space_unmap(commandt, commandh, commandsize); 272 273 return (0); 274 } 275 276 /* 277 * PLX 9052-based PCMCIA->PCI bridge attachment. 278 * 279 * These are often sold as "PCI wireless card adapters" and are 280 * sold by several vendors. Most are simply rebadged versions of the 281 * Eumitcom WL11000P or Global Sun Technology GL24110P02. 282 * These cards use the PLX 9052 dumb bridge chip to connect a PCMCIA 283 * wireless card to the PCI bus. Because it is a dumb bridge and 284 * not a true PCMCIA bridge, the PCMCIA subsystem is not involved 285 * (or even required). The PLX 9052 provides multiple PCI address 286 * space mappings. The primary mappings at PCI registers 0x10 (mem) 287 * and 0x14 (I/O) are for the PLX chip itself, *NOT* the PCMCIA card. 288 * The mem and I/O spaces for the PCMCIA card are mapped to 0x18 and 289 * 0x1C respectively. 290 * The PLX 9050/9052 datasheet may be downloaded from PLX at 291 * http://www.plxtech.com/products/toolbox/9050.htm 292 */ 293 int 294 wi_pci_plx_attach(struct pci_attach_args *pa, struct wi_softc *sc) 295 { 296 bus_space_handle_t localh, ioh, memh; 297 bus_space_tag_t localt; 298 bus_space_tag_t iot = pa->pa_iot; 299 bus_space_tag_t memt = pa->pa_memt; 300 bus_size_t localsize, memsize, iosize; 301 u_int32_t intcsr; 302 303 if (pci_mapreg_map(pa, WI_PLX_MEMRES, PCI_MAPREG_TYPE_MEM, 0, 304 &memt, &memh, NULL, &memsize, 0) != 0) { 305 printf(": can't map mem space\n"); 306 return (ENXIO); 307 } 308 sc->wi_ltag = memt; 309 sc->wi_lhandle = memh; 310 311 if (pci_mapreg_map(pa, WI_PLX_IORES, 312 PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, &iosize, 0) != 0) { 313 printf(": can't map i/o space\n"); 314 bus_space_unmap(memt, memh, memsize); 315 return (ENXIO); 316 } 317 sc->wi_btag = iot; 318 sc->wi_bhandle = ioh; 319 320 /* 321 * Some cards, such as the PLX version of the NDC NCP130, 322 * don't have the PLX local registers mapped. In general 323 * this is OK since on those cards the serial EEPROM has 324 * already set things up for us. 325 * As such, we don't consider an error here to be fatal. 326 */ 327 localsize = 0; 328 if (pci_mapreg_type(pa->pa_pc, pa->pa_tag, WI_PLX_LOCALRES) 329 == PCI_MAPREG_TYPE_IO) { 330 if (pci_mapreg_map(pa, WI_PLX_LOCALRES, PCI_MAPREG_TYPE_IO, 331 0, &localt, &localh, NULL, &localsize, 0) != 0) 332 printf(": can't map PLX I/O space\n"); 333 } 334 335 if (wi_pci_common_attach(pa, sc) != 0) { 336 if (localsize) 337 bus_space_unmap(localt, localh, localsize); 338 bus_space_unmap(iot, ioh, iosize); 339 bus_space_unmap(memt, memh, memsize); 340 return (ENXIO); 341 } 342 343 if (localsize != 0) { 344 intcsr = bus_space_read_4(localt, localh, 345 WI_PLX_INTCSR); 346 347 /* 348 * The Netgear MA301 has local interrupt 1 active 349 * when there is no card in the adapter. We bail 350 * early in this case since our attempt to check 351 * for the presence of a card later will hang the 352 * MA301. 353 */ 354 if (intcsr & WI_PLX_LINT1STAT) { 355 printf("\n%s: no PCMCIA card detected in bridge card\n", 356 WI_PRT_ARG(sc)); 357 pci_intr_disestablish(pa->pa_pc, sc->sc_ih); 358 if (localsize) 359 bus_space_unmap(localt, localh, localsize); 360 bus_space_unmap(iot, ioh, iosize); 361 bus_space_unmap(memt, memh, memsize); 362 return (ENXIO); 363 } 364 365 /* 366 * Enable PCI interrupts on the PLX chip if they are 367 * not already enabled. On most adapters the serial 368 * EEPROM has done this for us but some (such as 369 * the Netgear MA301) do not. 370 */ 371 if (!(intcsr & WI_PLX_INTEN)) { 372 intcsr |= WI_PLX_INTEN; 373 bus_space_write_4(localt, localh, WI_PLX_INTCSR, 374 intcsr); 375 } 376 } 377 378 /* 379 * Enable I/O mode and level interrupts on the PCMCIA card. 380 * The PCMCIA card's COR is the first byte after the CIS. 381 */ 382 bus_space_write_1(memt, memh, WI_PLX_COR_OFFSET, WI_COR_IOMODE); 383 sc->wi_cor_offset = WI_PLX_COR_OFFSET; 384 385 if (localsize != 0) { 386 /* 387 * Test the presence of a wi(4) card by writing 388 * a magic number to the first software support 389 * register and then reading it back. 390 */ 391 CSR_WRITE_2(sc, WI_SW0, WI_DRVR_MAGIC); 392 DELAY(1000); 393 if (CSR_READ_2(sc, WI_SW0) != WI_DRVR_MAGIC) { 394 printf("\n%s: no PCMCIA card detected in bridge card\n", 395 WI_PRT_ARG(sc)); 396 pci_intr_disestablish(pa->pa_pc, sc->sc_ih); 397 if (localsize) 398 bus_space_unmap(localt, localh, localsize); 399 bus_space_unmap(iot, ioh, iosize); 400 bus_space_unmap(memt, memh, memsize); 401 return (ENXIO); 402 } 403 404 /* Unmap registers we no longer need access to. */ 405 bus_space_unmap(localt, localh, localsize); 406 407 /* Print PCMCIA card's CIS strings. */ 408 wi_pci_plx_print_cis(sc); 409 } 410 411 return (0); 412 } 413 414 /* 415 * TMD 7160-based PCMCIA->PCI bridge attachment. 416 * 417 * The TMD7160 dumb bridge chip is used on some versions of the 418 * NDC/Sohoware NCP130. The TMD7160 provides two PCI I/O registers. 419 * The first, at 0x14, maps to the Prism2 COR. 420 * The second, at 0x18, is for the Prism2 chip itself. 421 * 422 * The datasheet for the TMD7160 does not seem to be publicly available. 423 * Details for this attachment were gleaned from a version of the 424 * Linux WLAN driver modified by NDC. 425 */ 426 int 427 wi_pci_tmd_attach(struct pci_attach_args *pa, struct wi_softc *sc) 428 { 429 bus_space_handle_t localh, ioh; 430 bus_space_tag_t localt; 431 bus_space_tag_t iot = pa->pa_iot; 432 bus_size_t localsize, iosize; 433 434 if (pci_mapreg_map(pa, WI_TMD_LOCALRES, PCI_MAPREG_TYPE_IO, 435 0, &localt, &localh, NULL, &localsize, 0) != 0) { 436 printf(": can't map TMD I/O space\n"); 437 return (ENXIO); 438 } 439 sc->wi_ltag = localt; 440 sc->wi_lhandle = localh; 441 442 if (pci_mapreg_map(pa, WI_TMD_IORES, PCI_MAPREG_TYPE_IO, 443 0, &iot, &ioh, NULL, &iosize, 0) != 0) { 444 printf(": can't map i/o space\n"); 445 bus_space_unmap(localt, localh, localsize); 446 return (ENXIO); 447 } 448 sc->wi_btag = iot; 449 sc->wi_bhandle = ioh; 450 451 if (wi_pci_common_attach(pa, sc) != 0) { 452 bus_space_unmap(iot, ioh, iosize); 453 bus_space_unmap(localt, localh, localsize); 454 return (ENXIO); 455 } 456 457 /* 458 * Enable I/O mode and level interrupts on the embedded PCMCIA 459 * card. The PCMCIA card's COR is the first byte of BAR 0. 460 */ 461 bus_space_write_1(localt, localh, 0, WI_COR_IOMODE); 462 sc->wi_cor_offset = 0; 463 464 return (0); 465 } 466 467 int 468 wi_pci_native_attach(struct pci_attach_args *pa, struct wi_softc *sc) 469 { 470 bus_space_handle_t ioh; 471 bus_space_tag_t iot = pa->pa_iot; 472 bus_size_t iosize; 473 474 if (pci_mapreg_map(pa, WI_PCI_CBMA, PCI_MAPREG_TYPE_MEM, 475 0, &iot, &ioh, NULL, &iosize, 0) != 0) { 476 printf(": can't map mem space\n"); 477 return (ENXIO); 478 } 479 sc->wi_ltag = iot; 480 sc->wi_lhandle = ioh; 481 sc->wi_btag = iot; 482 sc->wi_bhandle = ioh; 483 sc->sc_pci = 1; 484 485 if (wi_pci_common_attach(pa, sc) != 0) { 486 bus_space_unmap(iot, ioh, iosize); 487 return (ENXIO); 488 } 489 490 /* Do a soft reset of the HFA3842 MAC core */ 491 bus_space_write_2(iot, ioh, WI_PCI_COR_OFFSET, WI_COR_SOFT_RESET); 492 DELAY(100*1000); /* 100 m sec */ 493 bus_space_write_2(iot, ioh, WI_PCI_COR_OFFSET, WI_COR_CLEAR); 494 DELAY(100*1000); /* 100 m sec */ 495 sc->wi_cor_offset = WI_PCI_COR_OFFSET; 496 497 return (0); 498 } 499 500 int 501 wi_pci_common_attach(struct pci_attach_args *pa, struct wi_softc *sc) 502 { 503 pci_intr_handle_t ih; 504 pci_chipset_tag_t pc = pa->pa_pc; 505 const char *intrstr; 506 507 /* Make sure interrupts are disabled. */ 508 CSR_WRITE_2(sc, WI_INT_EN, 0); 509 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 510 511 /* Map and establish the interrupt. */ 512 if (pci_intr_map(pa, &ih)) { 513 printf(": couldn't map interrupt\n"); 514 return (ENXIO); 515 } 516 intrstr = pci_intr_string(pc, ih); 517 sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, wi_intr, sc, 518 sc->sc_dev.dv_xname); 519 if (sc->sc_ih == NULL) { 520 printf(": couldn't establish interrupt"); 521 if (intrstr != NULL) 522 printf(" at %s", intrstr); 523 printf("\n"); 524 return (ENXIO); 525 } 526 printf(": %s", intrstr); 527 528 return (0); 529 } 530 531 void 532 wi_pci_plx_print_cis(struct wi_softc *sc) 533 { 534 int i, stringno; 535 char cisbuf[CIS_INFO_SIZE]; 536 char *cis_strings[3]; 537 u_int8_t value; 538 const u_int8_t cis_magic[] = { 539 0x01, 0x03, 0x00, 0x00, 0xff, 0x17, 0x04, 0x67 540 }; 541 542 /* Make sure the CIS data is valid. */ 543 for (i = 0; i < 8; i++) { 544 value = bus_space_read_1(sc->wi_ltag, sc->wi_lhandle, i * 2); 545 if (value != cis_magic[i]) 546 return; 547 } 548 549 cis_strings[0] = cisbuf; 550 stringno = 0; 551 for (i = 0; i < CIS_INFO_SIZE && stringno < 3; i++) { 552 cisbuf[i] = bus_space_read_1(sc->wi_ltag, 553 sc->wi_lhandle, (CIS_MFG_NAME_OFFSET + i) * 2); 554 if (cisbuf[i] == '\0' && ++stringno < 3) 555 cis_strings[stringno] = &cisbuf[i + 1]; 556 } 557 cisbuf[CIS_INFO_SIZE - 1] = '\0'; 558 printf("\n%s: \"%s, %s, %s\"", WI_PRT_ARG(sc), 559 cis_strings[0], cis_strings[1], cis_strings[2]); 560 } 561