awi.c revision 1.12
1 /* $NetBSD: awi.c,v 1.12 2000/03/23 05:26:00 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Atsushi Onoe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Driver for AMD 802.11 PCnetMobile firmware. 41 * Uses am79c930 chip driver to talk to firmware running on the am79c930. 42 * 43 * The awi device driver first appeared in NetBSD 1.5. 44 * 45 * The initial version of the driver was written by 46 * Bill Sommerfeld <sommerfeld (at) netbsd.org>. 47 * Then the driver module completely rewritten to support cards with DS phy 48 * and to support adhoc mode by Atsushi Onoe <onoe (at) netbsd.org> 49 */ 50 51 #ifdef __NetBSD__ 52 #include "opt_inet.h" 53 #include "opt_ns.h" 54 #include "bpfilter.h" 55 #include "rnd.h" 56 #endif 57 #ifdef __FreeBSD__ 58 #if __FreeBSD__ >= 3 59 #include "opt_inet.h" 60 #endif 61 #if __FreeBSD__ >= 4 62 #include "bpf.h" 63 #define NBPFILTER NBPF 64 #else 65 #include "bpfilter.h" 66 #endif 67 #endif 68 69 #include <sys/param.h> 70 #include <sys/systm.h> 71 #include <sys/kernel.h> 72 #include <sys/mbuf.h> 73 #include <sys/malloc.h> 74 #include <sys/proc.h> 75 #include <sys/socket.h> 76 #ifdef __FreeBSD__ 77 #include <sys/sockio.h> 78 #else 79 #include <sys/ioctl.h> 80 #endif 81 #include <sys/errno.h> 82 #include <sys/syslog.h> 83 #include <sys/select.h> 84 #if defined(__FreeBSD__) && __FreeBSD__ >= 4 85 #include <sys/bus.h> 86 #else 87 #include <sys/device.h> 88 #endif 89 #if NRND > 0 90 #include <sys/rnd.h> 91 #endif 92 93 #include <net/if.h> 94 #include <net/if_dl.h> 95 #ifdef __FreeBSD__ 96 #include <net/ethernet.h> 97 #else 98 #include <net/if_ether.h> 99 #endif 100 #include <net/if_media.h> 101 #include <net/if_llc.h> 102 #include <net/if_ieee80211.h> 103 104 #ifdef INET 105 #include <netinet/in.h> 106 #include <netinet/in_systm.h> 107 #include <netinet/in_var.h> 108 #include <netinet/ip.h> 109 #ifdef __NetBSD__ 110 #include <netinet/if_inarp.h> 111 #else 112 #include <netinet/if_ether.h> 113 #endif 114 #endif 115 116 #ifdef NS 117 #include <netns/ns.h> 118 #include <netns/ns_if.h> 119 #endif 120 121 #if NBPFILTER > 0 122 #include <net/bpf.h> 123 #include <net/bpfdesc.h> 124 #endif 125 126 #include <machine/cpu.h> 127 #include <machine/bus.h> 128 #ifdef __NetBSD__ 129 #include <machine/intr.h> 130 #endif 131 #ifdef __FreeBSD__ 132 #include <machine/clock.h> 133 #endif 134 135 #ifdef __NetBSD__ 136 #include <dev/ic/am79c930reg.h> 137 #include <dev/ic/am79c930var.h> 138 #include <dev/ic/awireg.h> 139 #include <dev/ic/awivar.h> 140 #if 0 141 #include <dev/ic/awictl.h> 142 #endif 143 #endif 144 #ifdef __FreeBSD__ 145 #include <dev/awi/am79c930reg.h> 146 #include <dev/awi/am79c930var.h> 147 #include <dev/awi/awireg.h> 148 #include <dev/awi/awivar.h> 149 #include <dev/awi/awictl.h> 150 #endif 151 152 static int awi_ioctl __P((struct ifnet *ifp, u_long cmd, caddr_t data)); 153 #ifdef IFM_IEEE80211 154 static int awi_media_rate2opt __P((struct awi_softc *sc, int rate)); 155 static int awi_media_opt2rate __P((struct awi_softc *sc, int opt)); 156 static int awi_media_change __P((struct ifnet *ifp)); 157 static void awi_media_status __P((struct ifnet *ifp, struct ifmediareq *imr)); 158 #endif 159 static int awi_drvget __P((struct ifnet *ifp, u_long cmd, caddr_t data)); 160 static int awi_drvset __P((struct ifnet *ifp, u_long cmd, caddr_t data)); 161 static int awi_init __P((struct awi_softc *sc)); 162 static void awi_stop __P((struct awi_softc *sc)); 163 static void awi_watchdog __P((struct ifnet *ifp)); 164 static void awi_start __P((struct ifnet *ifp)); 165 static void awi_txint __P((struct awi_softc *sc)); 166 static struct mbuf * awi_fix_txhdr __P((struct awi_softc *sc, struct mbuf *m0)); 167 static struct mbuf * awi_fix_rxhdr __P((struct awi_softc *sc, struct mbuf *m0)); 168 static void awi_input __P((struct awi_softc *sc, struct mbuf *m, u_int32_t rxts, u_int8_t rssi)); 169 static void awi_rxint __P((struct awi_softc *sc)); 170 struct mbuf * awi_devget __P((struct awi_softc *sc, u_int32_t off, u_int16_t len)); 171 static int awi_init_hw __P((struct awi_softc *sc)); 172 static int awi_init_mibs __P((struct awi_softc *sc)); 173 static int awi_init_txrx __P((struct awi_softc *sc)); 174 static void awi_stop_txrx __P((struct awi_softc *sc)); 175 static int awi_init_region __P((struct awi_softc *sc)); 176 static int awi_start_scan __P((struct awi_softc *sc)); 177 static int awi_next_scan __P((struct awi_softc *sc)); 178 static void awi_stop_scan __P((struct awi_softc *sc)); 179 static void awi_recv_beacon __P((struct awi_softc *sc, struct mbuf *m0, u_int32_t rxts, u_int8_t rssi)); 180 static int awi_set_ss __P((struct awi_softc *sc)); 181 static void awi_try_sync __P((struct awi_softc *sc)); 182 static void awi_sync_done __P((struct awi_softc *sc)); 183 static void awi_send_deauth __P((struct awi_softc *sc)); 184 static void awi_send_auth __P((struct awi_softc *sc)); 185 static void awi_recv_auth __P((struct awi_softc *sc, struct mbuf *m0)); 186 static void awi_send_asreq __P((struct awi_softc *sc, int reassoc)); 187 static void awi_recv_asresp __P((struct awi_softc *sc, struct mbuf *m0)); 188 static int awi_mib __P((struct awi_softc *sc, u_int8_t cmd, u_int8_t mib)); 189 static int awi_cmd_scan __P((struct awi_softc *sc)); 190 static int awi_cmd __P((struct awi_softc *sc, u_int8_t cmd)); 191 static void awi_cmd_done __P((struct awi_softc *sc)); 192 static int awi_next_txd __P((struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t*ntxdp)); 193 static int awi_lock __P((struct awi_softc *sc)); 194 static void awi_unlock __P((struct awi_softc *sc)); 195 static int awi_intr_lock __P((struct awi_softc *sc)); 196 static void awi_intr_unlock __P((struct awi_softc *sc)); 197 static int awi_cmd_wait __P((struct awi_softc *sc)); 198 199 #ifdef AWI_DEBUG 200 static void awi_dump_pkt __P((struct awi_softc *sc, struct mbuf *m, u_int8_t rssi)); 201 int awi_verbose = 0; 202 int awi_dump = 0; 203 #define AWI_DUMP_MASK(fc0) (1 << (((fc0) & IEEE80211_FC0_SUBTYPE_MASK) >> 4)) 204 int awi_dump_mask = AWI_DUMP_MASK(IEEE80211_FC0_SUBTYPE_BEACON); 205 int awi_dump_hdr = 0; 206 int awi_dump_len = 28; 207 #endif 208 209 #if NBPFILTER > 0 210 #define AWI_BPF_NORM 0 211 #define AWI_BPF_RAW 1 212 #ifdef __FreeBSD__ 213 #define AWI_BPF_MTAP(sc, m, raw) do { \ 214 if ((sc)->sc_ifp->if_bpf && (sc)->sc_rawbpf == (raw)) \ 215 bpf_mtap((sc)->sc_ifp, (m)); \ 216 } while (0); 217 #else 218 #define AWI_BPF_MTAP(sc, m, raw) do { \ 219 if ((sc)->sc_ifp->if_bpf && (sc)->sc_rawbpf == (raw)) \ 220 bpf_mtap((sc)->sc_ifp->if_bpf, (m)); \ 221 } while (0); 222 #endif 223 #else 224 #define AWI_BPF_MTAP(sc, m, raw) 225 #endif 226 227 #ifndef llc_snap 228 #define llc_snap llc_un.type_snap 229 #endif 230 231 #ifdef __FreeBSD__ 232 #if __FreeBSD__ < 4 233 #define memset(p, v, n) bzero(p, n) /*XXX*/ 234 #endif 235 236 #if __FreeBSD__ >= 4 237 devclass_t awi_devclass; 238 #endif 239 240 /* NetBSD compatible functions */ 241 static char * ether_sprintf __P((u_int8_t *)); 242 243 static char * 244 ether_sprintf(enaddr) 245 u_int8_t *enaddr; 246 { 247 static char strbuf[18]; 248 249 sprintf(strbuf, "%6D", enaddr, ":"); 250 return strbuf; 251 } 252 #endif 253 254 int 255 awi_attach(sc) 256 struct awi_softc *sc; 257 { 258 struct ifnet *ifp = sc->sc_ifp; 259 #ifdef IFM_IEEE80211 260 int i; 261 u_int8_t *phy_rates; 262 int mword; 263 struct ifmediareq imr; 264 #endif 265 int s; 266 int error; 267 268 s = splnet(); 269 270 /* 271 * Even if we can sleep in initialization state, 272 * all other processes (e.g. ifconfig) have to wait for 273 * completion of attaching interface. 274 */ 275 sc->sc_busy = 1; 276 sc->sc_status = AWI_ST_INIT; 277 TAILQ_INIT(&sc->sc_scan); 278 error = awi_init_hw(sc); 279 if (error) { 280 sc->sc_invalid = 1; 281 splx(s); 282 return error; 283 } 284 error = awi_init_mibs(sc); 285 splx(s); 286 if (error) { 287 sc->sc_invalid = 1; 288 return error; 289 } 290 291 ifp->if_softc = sc; 292 ifp->if_start = awi_start; 293 ifp->if_ioctl = awi_ioctl; 294 ifp->if_watchdog = awi_watchdog; 295 ifp->if_mtu = ETHERMTU; 296 ifp->if_hdrlen = sizeof(struct ieee80211_frame) + 297 sizeof(struct ether_header); 298 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 299 #ifdef IFF_NOTRAILERS 300 ifp->if_flags |= IFF_NOTRAILERS; 301 #endif 302 #ifdef __NetBSD__ 303 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 304 #endif 305 #ifdef __FreeBSD__ 306 ifp->if_output = ether_output; 307 ifp->if_snd.ifq_maxlen = ifqmaxlen; 308 memcpy(sc->sc_ec.ac_enaddr, sc->sc_mib_addr.aMAC_Address, 309 ETHER_ADDR_LEN); 310 #endif 311 312 printf("%s: IEEE802.11 (%s %dMbps) address %s\n", 313 sc->sc_dev.dv_xname, 314 sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH ? "FH" : "DS", 315 sc->sc_tx_rate / 10, ether_sprintf(sc->sc_mib_addr.aMAC_Address)); 316 if_attach(ifp); 317 #ifdef __FreeBSD__ 318 ether_ifattach(ifp); 319 #if NBPFILTER > 0 320 bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header)); 321 #endif 322 #else 323 ether_ifattach(ifp, sc->sc_mib_addr.aMAC_Address); 324 #if NBPFILTER > 0 325 bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); 326 #endif 327 #endif 328 329 #ifdef IFM_IEEE80211 330 ifmedia_init(&sc->sc_media, 0, awi_media_change, awi_media_status); 331 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 332 for (i = 0; i < phy_rates[1]; i++) { 333 mword = awi_media_rate2opt(sc, AWI_80211_RATE(phy_rates[2 + i])); 334 if (mword == 0) 335 continue; 336 mword |= IFM_IEEE80211; 337 ifmedia_add(&sc->sc_media, mword, 0, NULL); 338 ifmedia_add(&sc->sc_media, 339 mword | IFM_IEEE80211_ADHOC, 0, NULL); 340 ifmedia_add(&sc->sc_media, 341 mword | IFM_IEEE80211_ADHOC | IFM_FLAG0, 0, NULL); 342 } 343 awi_media_status(ifp, &imr); 344 ifmedia_set(&sc->sc_media, imr.ifm_active); 345 #endif 346 347 /* ready to accept ioctl */ 348 awi_unlock(sc); 349 return 0; 350 } 351 352 #ifdef __NetBSD__ 353 int 354 awi_detach(sc) 355 struct awi_softc *sc; 356 { 357 struct ifnet *ifp = sc->sc_ifp; 358 int s; 359 360 s = splnet(); 361 sc->sc_invalid = 1; 362 awi_stop(sc); 363 while (sc->sc_sleep_cnt > 0) { 364 wakeup(sc); 365 (void)tsleep(sc, PWAIT, "awidet", 1); 366 } 367 #if NBPFILTER > 0 368 bpfdetach(ifp); 369 #endif 370 #ifdef IFM_IEEE80211 371 ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY); 372 #endif 373 ether_ifdetach(ifp); 374 if_detach(ifp); 375 if (sc->sc_enabled) { 376 if (sc->sc_disable) 377 (*sc->sc_disable)(sc); 378 sc->sc_enabled = 0; 379 } 380 splx(s); 381 return 0; 382 } 383 384 int 385 awi_activate(self, act) 386 struct device *self; 387 enum devact act; 388 { 389 struct awi_softc *sc = (struct awi_softc *)self; 390 int s, error = 0; 391 392 s = splnet(); 393 switch (act) { 394 case DVACT_ACTIVATE: 395 error = EOPNOTSUPP; 396 break; 397 398 case DVACT_DEACTIVATE: 399 sc->sc_invalid = 1; 400 if_deactivate(sc->sc_ifp); 401 break; 402 } 403 splx(s); 404 405 return error; 406 } 407 #endif /* __NetBSD__ */ 408 409 void 410 awi_reset(sc) 411 struct awi_softc *sc; 412 { 413 int s; 414 415 if (!sc->sc_enabled) 416 return; 417 s = splnet(); 418 sc->sc_invalid = 1; 419 awi_stop(sc); 420 if (sc->sc_disable) 421 (*sc->sc_disable)(sc); 422 sc->sc_enabled = 0; 423 DELAY(1000); 424 sc->sc_invalid = 0; 425 (void)awi_init(sc); 426 splx(s); 427 } 428 429 static int 430 awi_ioctl(ifp, cmd, data) 431 struct ifnet *ifp; 432 u_long cmd; 433 caddr_t data; 434 { 435 struct awi_softc *sc = ifp->if_softc; 436 struct ifreq *ifr = (struct ifreq *)data; 437 struct ifaddr *ifa = (struct ifaddr *)data; 438 int s, error; 439 size_t nwidlen; 440 u_int8_t nwid[IEEE80211_NWID_LEN + 1]; 441 u_int8_t *p; 442 443 s = splnet(); 444 445 /* serialize ioctl */ 446 error = awi_lock(sc); 447 if (error) 448 goto cantlock; 449 switch (cmd) { 450 case SIOCSIFADDR: 451 ifp->if_flags |= IFF_UP; 452 switch (ifa->ifa_addr->sa_family) { 453 #ifdef INET 454 case AF_INET: 455 arp_ifinit((void *)ifp, ifa); 456 break; 457 #endif 458 } 459 /* FALLTHROUGH */ 460 case SIOCSIFFLAGS: 461 sc->sc_format_llc = !(ifp->if_flags & IFF_LINK0); 462 if (!(ifp->if_flags & IFF_UP)) { 463 if (sc->sc_enabled) { 464 awi_stop(sc); 465 if (sc->sc_disable) 466 (*sc->sc_disable)(sc); 467 sc->sc_enabled = 0; 468 } 469 break; 470 } 471 error = awi_init(sc); 472 break; 473 474 case SIOCADDMULTI: 475 case SIOCDELMULTI: 476 #ifdef __FreeBSD__ 477 error = ENETRESET; /*XXX*/ 478 #else 479 error = (cmd == SIOCADDMULTI) ? 480 ether_addmulti(ifr, &sc->sc_ec) : 481 ether_delmulti(ifr, &sc->sc_ec); 482 #endif 483 if (error == ENETRESET) { 484 if (sc->sc_enabled) 485 error = awi_init(sc); 486 else 487 error = 0; 488 } 489 break; 490 case SIOCSIFMTU: 491 if (ifr->ifr_mtu > ETHERMTU) 492 error = EINVAL; 493 else 494 ifp->if_mtu = ifr->ifr_mtu; 495 break; 496 case SIOCS80211NWID: 497 error = copyinstr(ifr->ifr_data, nwid, sizeof(nwid), &nwidlen); 498 if (error) 499 break; 500 nwidlen--; /* eliminate trailing '\0' */ 501 if (nwidlen > IEEE80211_NWID_LEN) { 502 error = EINVAL; 503 break; 504 } 505 if (sc->sc_mib_mac.aDesired_ESS_ID[1] == nwidlen && 506 memcmp(&sc->sc_mib_mac.aDesired_ESS_ID[2], nwid, 507 nwidlen) == 0) 508 break; 509 memset(sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 510 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 511 sc->sc_mib_mac.aDesired_ESS_ID[1] = nwidlen; 512 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], nwid, nwidlen); 513 if (sc->sc_enabled) { 514 awi_stop(sc); 515 error = awi_init(sc); 516 } 517 break; 518 case SIOCG80211NWID: 519 if (ifp->if_flags & IFF_RUNNING) 520 p = sc->sc_bss.essid; 521 else 522 p = sc->sc_mib_mac.aDesired_ESS_ID; 523 error = copyout(p + 2, ifr->ifr_data, IEEE80211_NWID_LEN); 524 break; 525 #ifdef IFM_IEEE80211 526 case SIOCSIFMEDIA: 527 case SIOCGIFMEDIA: 528 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 529 break; 530 #endif 531 case SIOCGDRVSPEC: 532 error = awi_drvget(ifp, cmd, data); 533 break; 534 case SIOCSDRVSPEC: 535 error = awi_drvset(ifp, cmd, data); 536 break; 537 default: 538 error = EINVAL; 539 break; 540 } 541 awi_unlock(sc); 542 cantlock: 543 splx(s); 544 return error; 545 } 546 547 #ifdef IFM_IEEE80211 548 static int 549 awi_media_rate2opt(sc, rate) 550 struct awi_softc *sc; 551 int rate; 552 { 553 int mword; 554 555 mword = 0; 556 switch (rate) { 557 case 10: 558 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 559 mword = IFM_IEEE80211_FH1; 560 else 561 mword = IFM_IEEE80211_DS1; 562 break; 563 case 20: 564 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 565 mword = IFM_IEEE80211_FH2; 566 else 567 mword = IFM_IEEE80211_DS2; 568 break; 569 case 55: 570 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 571 mword = IFM_IEEE80211_DS5; 572 break; 573 case 110: 574 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 575 mword = IFM_IEEE80211_DS11; 576 break; 577 } 578 return mword; 579 } 580 581 static int 582 awi_media_opt2rate(sc, opt) 583 struct awi_softc *sc; 584 int opt; 585 { 586 int rate; 587 588 rate = 0; 589 switch (IFM_SUBTYPE(opt)) { 590 case IFM_IEEE80211_FH1: 591 case IFM_IEEE80211_FH2: 592 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 593 return 0; 594 break; 595 case IFM_IEEE80211_DS1: 596 case IFM_IEEE80211_DS2: 597 case IFM_IEEE80211_DS5: 598 case IFM_IEEE80211_DS11: 599 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_DS) 600 return 0; 601 break; 602 } 603 604 switch (IFM_SUBTYPE(opt)) { 605 case IFM_IEEE80211_FH1: 606 case IFM_IEEE80211_DS1: 607 rate = 10; 608 break; 609 case IFM_IEEE80211_FH2: 610 case IFM_IEEE80211_DS2: 611 rate = 20; 612 break; 613 case IFM_IEEE80211_DS5: 614 rate = 55; 615 break; 616 case IFM_IEEE80211_DS11: 617 rate = 110; 618 break; 619 } 620 return rate; 621 } 622 623 /* 624 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 625 */ 626 static int 627 awi_media_change(ifp) 628 struct ifnet *ifp; 629 { 630 struct awi_softc *sc = ifp->if_softc; 631 struct ifmedia_entry *ime; 632 u_int8_t *phy_rates; 633 int i, rate, error; 634 635 error = 0; 636 ime = sc->sc_media.ifm_cur; 637 rate = awi_media_opt2rate(sc, ime->ifm_media); 638 if (rate == 0) 639 return EINVAL; 640 if (rate != sc->sc_tx_rate) { 641 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 642 for (i = 0; i < phy_rates[1]; i++) { 643 if (rate == AWI_80211_RATE(phy_rates[2 + i])) 644 break; 645 } 646 if (i == phy_rates[1]) 647 return EINVAL; 648 } 649 if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 650 sc->sc_mib_local.Network_Mode = 0; 651 sc->sc_no_bssid = (ime->ifm_media & IFM_FLAG0) ? 1 : 0; 652 } else { 653 sc->sc_mib_local.Network_Mode = 1; 654 } 655 if (sc->sc_enabled) { 656 awi_stop(sc); 657 error = awi_init(sc); 658 } 659 return error; 660 } 661 662 static void 663 awi_media_status(ifp, imr) 664 struct ifnet *ifp; 665 struct ifmediareq *imr; 666 { 667 struct awi_softc *sc = ifp->if_softc; 668 669 imr->ifm_status = IFM_AVALID; 670 if (ifp->if_flags & IFF_RUNNING) 671 imr->ifm_status |= IFM_ACTIVE; 672 imr->ifm_active = IFM_IEEE80211; 673 imr->ifm_active |= awi_media_rate2opt(sc, sc->sc_tx_rate); 674 if (sc->sc_mib_local.Network_Mode == 0) { 675 imr->ifm_active |= IFM_IEEE80211_ADHOC; 676 if (sc->sc_no_bssid) 677 imr->ifm_active |= IFM_FLAG0; 678 } 679 } 680 #endif /* IFM_IEEE80211 */ 681 682 static int 683 awi_drvget(ifp, cmd, data) 684 struct ifnet *ifp; 685 u_long cmd; 686 caddr_t data; 687 { 688 #if 0 689 struct awi_softc *sc = ifp->if_softc; 690 struct ifdrv *ifd = (struct ifdrv *)data; 691 u_int8_t buf[AWICTL_BUFSIZE]; 692 int error = 0; 693 694 switch (ifd->ifd_cmd) { 695 case AWICTL_REGION: 696 if (ifd->ifd_len < 1) 697 return ENOSPC; 698 ifd->ifd_len = 1; 699 buf[0] = sc->sc_mib_phy.aCurrent_Reg_Domain; 700 break; 701 case AWICTL_CHANSET: 702 if (ifd->ifd_len < 3) 703 return ENOSPC; 704 ifd->ifd_len = 3; 705 buf[0] = sc->sc_bss.chanset; 706 buf[1] = sc->sc_scan_min; 707 buf[2] = sc->sc_scan_max; 708 break; 709 case AWICTL_RAWBPF: 710 if (ifd->ifd_len < 1) 711 return ENOSPC; 712 ifd->ifd_len = 1; 713 buf[0] = sc->sc_rawbpf; 714 break; 715 default: 716 error = EINVAL; 717 break; 718 } 719 if (error == 0 && ifd->ifd_len > 0) 720 error = copyout(ifd->ifd_data, buf, ifd->ifd_len); 721 return error; 722 #else 723 return EINVAL; 724 #endif 725 } 726 727 static int 728 awi_drvset(ifp, cmd, data) 729 struct ifnet *ifp; 730 u_long cmd; 731 caddr_t data; 732 { 733 #if 0 734 struct awi_softc *sc = ifp->if_softc; 735 struct ifdrv *ifd = (struct ifdrv *)data; 736 u_int8_t buf[AWICTL_BUFSIZE]; 737 u_int8_t oregion; 738 int error = 0; 739 740 if (ifd->ifd_len > sizeof(buf)) 741 return EINVAL; 742 error = copyin(ifd->ifd_data, buf, ifd->ifd_len); 743 if (error) 744 return error; 745 746 switch (ifd->ifd_cmd) { 747 case AWICTL_REGION: 748 if (ifd->ifd_len != 1) 749 return EINVAL; 750 oregion = sc->sc_mib_phy.aCurrent_Reg_Domain; 751 if (buf[0] == oregion) 752 break; 753 sc->sc_mib_phy.aCurrent_Reg_Domain = buf[0]; 754 error = awi_init_region(sc); 755 if (error) { 756 sc->sc_mib_phy.aCurrent_Reg_Domain = oregion; 757 break; 758 } 759 if (sc->sc_enabled) { 760 awi_stop(sc); 761 error = awi_init(sc); 762 } 763 break; 764 case AWICTL_CHANSET: 765 if (ifd->ifd_len != 3) 766 return EINVAL; 767 /* reset scan min/max */ 768 awi_init_region(sc); 769 if (buf[0] < sc->sc_scan_min || buf[0] > sc->sc_scan_max || 770 buf[1] < sc->sc_scan_min || buf[1] > sc->sc_scan_max || 771 buf[2] < sc->sc_scan_min || buf[2] > sc->sc_scan_max) 772 return EINVAL; 773 sc->sc_scan_cur = buf[0]; 774 sc->sc_scan_min = buf[1]; 775 sc->sc_scan_max = buf[2]; 776 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 777 sc->sc_scan_set = sc->sc_scan_cur % 3 + 1; 778 if (sc->sc_enabled) { 779 awi_stop(sc); 780 error = awi_init(sc); 781 } 782 break; 783 case AWICTL_RAWBPF: 784 if (ifd->ifd_len != 1) 785 return EINVAL; 786 sc->sc_rawbpf = buf[0]; 787 break; 788 default: 789 error = EINVAL; 790 break; 791 } 792 return error; 793 #else 794 return EINVAL; 795 #endif 796 } 797 798 int 799 awi_intr(arg) 800 void *arg; 801 { 802 struct awi_softc *sc = arg; 803 u_int16_t status; 804 int error, handled = 0, ocansleep; 805 806 if (sc->sc_invalid) 807 return 0; 808 809 am79c930_gcr_setbits(&sc->sc_chip, 810 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 811 awi_write_1(sc, AWI_DIS_PWRDN, 1); 812 ocansleep = sc->sc_cansleep; 813 sc->sc_cansleep = 0; 814 815 for (;;) { 816 error = awi_intr_lock(sc); 817 if (error) 818 break; 819 status = awi_read_1(sc, AWI_INTSTAT); 820 awi_write_1(sc, AWI_INTSTAT, 0); 821 awi_write_1(sc, AWI_INTSTAT, 0); 822 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 823 awi_write_1(sc, AWI_INTSTAT2, 0); 824 DELAY(10); 825 awi_intr_unlock(sc); 826 if (!sc->sc_cmd_inprog) 827 status &= ~AWI_INT_CMD; /* make sure */ 828 if (status == 0) 829 break; 830 handled = 1; 831 if (status & AWI_INT_RX) 832 awi_rxint(sc); 833 if (status & AWI_INT_TX) 834 awi_txint(sc); 835 if (status & AWI_INT_CMD) 836 awi_cmd_done(sc); 837 if (status & AWI_INT_SCAN_CMPLT) { 838 if (sc->sc_status == AWI_ST_SCAN && 839 sc->sc_mgt_timer > 0) 840 (void)awi_next_scan(sc); 841 } 842 } 843 sc->sc_cansleep = ocansleep; 844 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 845 awi_write_1(sc, AWI_DIS_PWRDN, 0); 846 return handled; 847 } 848 849 static int 850 awi_init(sc) 851 struct awi_softc *sc; 852 { 853 int error, ostatus; 854 int n; 855 struct ifnet *ifp = sc->sc_ifp; 856 #ifdef __FreeBSD__ 857 struct ifmultiaddr *ifma; 858 #else 859 struct ether_multi *enm; 860 struct ether_multistep step; 861 #endif 862 863 n = 0; 864 ifp->if_flags |= IFF_ALLMULTI; 865 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 866 if (ifp->if_flags & IFF_PROMISC) { 867 sc->sc_mib_mac.aPromiscuous_Enable = 1; 868 goto set_mib; 869 } 870 sc->sc_mib_mac.aPromiscuous_Enable = 0; 871 ifp->if_flags &= ~IFF_ALLMULTI; 872 #ifdef __FreeBSD__ 873 if (ifp->if_amcount != 0) 874 goto set_mib; 875 for (ifma = LIST_FIRST(&ifp->if_multiaddrs); ifma != NULL; 876 ifma = LIST_NEXT(ifma, ifma_link)) { 877 if (ifma->ifma_addr->sa_family != AF_LINK) 878 continue; 879 if (n == AWI_GROUP_ADDR_SIZE) 880 goto set_mib; 881 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], 882 LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 883 ETHER_ADDR_LEN); 884 n++; 885 } 886 #else 887 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 888 while (enm != NULL) { 889 if (n == AWI_GROUP_ADDR_SIZE || 890 memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN) 891 != 0) 892 goto set_mib; 893 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], enm->enm_addrlo, 894 ETHER_ADDR_LEN); 895 n++; 896 ETHER_NEXT_MULTI(step, enm); 897 } 898 #endif 899 ifp->if_flags &= ~IFF_ALLMULTI; 900 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 901 902 set_mib: 903 if (!sc->sc_enabled) { 904 sc->sc_enabled = 1; 905 if (sc->sc_enable) 906 (*sc->sc_enable)(sc); 907 sc->sc_status = AWI_ST_INIT; 908 error = awi_init_hw(sc); 909 if (error) 910 return error; 911 } 912 ostatus = sc->sc_status; 913 sc->sc_status = AWI_ST_INIT; 914 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL)) != 0 || 915 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR)) != 0 || 916 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC)) != 0 || 917 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT)) != 0 || 918 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY)) != 0) { 919 awi_stop(sc); 920 return error; 921 } 922 if (ifp->if_flags & IFF_RUNNING) 923 sc->sc_status = AWI_ST_RUNNING; 924 else { 925 if (ostatus == AWI_ST_INIT) { 926 error = awi_init_txrx(sc); 927 if (error) 928 return error; 929 } 930 error = awi_start_scan(sc); 931 } 932 return error; 933 } 934 935 static void 936 awi_stop(sc) 937 struct awi_softc *sc; 938 { 939 struct ifnet *ifp = sc->sc_ifp; 940 struct awi_bss *bp; 941 struct mbuf *m; 942 943 sc->sc_status = AWI_ST_INIT; 944 if (!sc->sc_invalid) { 945 (void)awi_cmd_wait(sc); 946 if (sc->sc_mib_local.Network_Mode && 947 sc->sc_status > AWI_ST_AUTH) 948 awi_send_deauth(sc); 949 awi_stop_txrx(sc); 950 } 951 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 952 ifp->if_timer = 0; 953 sc->sc_tx_timer = sc->sc_rx_timer = sc->sc_mgt_timer = 0; 954 for (;;) { 955 IF_DEQUEUE(&sc->sc_mgtq, m); 956 if (m == NULL) 957 break; 958 m_freem(m); 959 } 960 for (;;) { 961 IF_DEQUEUE(&ifp->if_snd, m); 962 if (m == NULL) 963 break; 964 m_freem(m); 965 } 966 while ((bp = TAILQ_FIRST(&sc->sc_scan)) != NULL) 967 TAILQ_REMOVE(&sc->sc_scan, bp, list); 968 } 969 970 static void 971 awi_watchdog(ifp) 972 struct ifnet *ifp; 973 { 974 struct awi_softc *sc = ifp->if_softc; 975 int ocansleep; 976 977 if (sc->sc_invalid) { 978 ifp->if_timer = 0; 979 return; 980 } 981 982 ocansleep = sc->sc_cansleep; 983 sc->sc_cansleep = 0; 984 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 985 printf("%s: transmit timeout\n", sc->sc_dev.dv_xname); 986 awi_txint(sc); 987 } 988 if (sc->sc_rx_timer && --sc->sc_rx_timer == 0) { 989 printf("%s: no recent beacons from %s; rescanning\n", 990 sc->sc_dev.dv_xname, ether_sprintf(sc->sc_bss.bssid)); 991 awi_start_scan(sc); 992 } 993 if (sc->sc_mgt_timer && --sc->sc_mgt_timer == 0) { 994 switch (sc->sc_status) { 995 case AWI_ST_SCAN: 996 awi_stop_scan(sc); 997 break; 998 case AWI_ST_AUTH: 999 case AWI_ST_ASSOC: 1000 /* restart scan */ 1001 awi_start_scan(sc); 1002 break; 1003 default: 1004 break; 1005 } 1006 } 1007 1008 if (sc->sc_tx_timer == 0 && sc->sc_rx_timer == 0 && 1009 sc->sc_mgt_timer == 0) 1010 ifp->if_timer = 0; 1011 else 1012 ifp->if_timer = 1; 1013 sc->sc_cansleep = ocansleep; 1014 } 1015 1016 static void 1017 awi_start(ifp) 1018 struct ifnet *ifp; 1019 { 1020 struct awi_softc *sc = ifp->if_softc; 1021 struct mbuf *m0, *m; 1022 u_int32_t txd, frame, ntxd; 1023 u_int8_t rate; 1024 int len, sent = 0; 1025 1026 for (;;) { 1027 txd = sc->sc_txnext; 1028 IF_DEQUEUE(&sc->sc_mgtq, m0); 1029 if (m0 != NULL) { 1030 if (awi_next_txd(sc, m0->m_pkthdr.len, &frame, &ntxd)) { 1031 IF_PREPEND(&sc->sc_mgtq, m0); 1032 ifp->if_flags |= IFF_OACTIVE; 1033 break; 1034 } 1035 } else { 1036 if (!(ifp->if_flags & IFF_RUNNING)) 1037 break; 1038 IF_DEQUEUE(&ifp->if_snd, m0); 1039 if (m0 == NULL) 1040 break; 1041 if (awi_next_txd(sc, m0->m_pkthdr.len + 1042 sizeof(struct ieee80211_frame), &frame, &ntxd)) { 1043 IF_PREPEND(&ifp->if_snd, m0); 1044 ifp->if_flags |= IFF_OACTIVE; 1045 break; 1046 } 1047 AWI_BPF_MTAP(sc, m0, AWI_BPF_NORM); 1048 m0 = awi_fix_txhdr(sc, m0); 1049 if (m0 == NULL) { 1050 ifp->if_oerrors++; 1051 continue; 1052 } 1053 ifp->if_opackets++; 1054 } 1055 AWI_BPF_MTAP(sc, m0, AWI_BPF_RAW); 1056 len = 0; 1057 for (m = m0; m != NULL; m = m->m_next) { 1058 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 1059 m->m_len); 1060 len += m->m_len; 1061 } 1062 m_freem(m0); 1063 rate = sc->sc_tx_rate; /*XXX*/ 1064 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 1065 awi_write_4(sc, txd + AWI_TXD_START, frame); 1066 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 1067 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 1068 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 1069 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 1070 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 1071 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 1072 sc->sc_txnext = ntxd; 1073 sent++; 1074 } 1075 if (sent) { 1076 if (sc->sc_tx_timer == 0) 1077 sc->sc_tx_timer = 5; 1078 ifp->if_timer = 1; 1079 #ifdef AWI_DEBUG 1080 if (awi_verbose) 1081 printf("awi_start: sent %d txdone %d txnext %d txbase %d txend %d\n", sent, sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend); 1082 #endif 1083 } 1084 } 1085 1086 static void 1087 awi_txint(sc) 1088 struct awi_softc *sc; 1089 { 1090 struct ifnet *ifp = sc->sc_ifp; 1091 u_int8_t flags; 1092 1093 while (sc->sc_txdone != sc->sc_txnext) { 1094 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1095 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1096 break; 1097 if (flags & AWI_TXD_ST_ERROR) 1098 ifp->if_oerrors++; 1099 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1100 0x7fff; 1101 } 1102 sc->sc_tx_timer = 0; 1103 ifp->if_flags &= ~IFF_OACTIVE; 1104 #ifdef AWI_DEBUG 1105 if (awi_verbose) 1106 printf("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1107 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend); 1108 #endif 1109 awi_start(ifp); 1110 } 1111 1112 static struct mbuf * 1113 awi_fix_txhdr(sc, m0) 1114 struct awi_softc *sc; 1115 struct mbuf *m0; 1116 { 1117 struct ether_header eh; 1118 struct ieee80211_frame *wh; 1119 struct llc *llc; 1120 1121 if (m0->m_len < sizeof(eh)) { 1122 m0 = m_pullup(m0, sizeof(eh)); 1123 if (m0 == NULL) 1124 return NULL; 1125 } 1126 memcpy(&eh, mtod(m0, caddr_t), sizeof(eh)); 1127 if (sc->sc_format_llc) { 1128 m_adj(m0, sizeof(struct ether_header) - sizeof(struct llc)); 1129 llc = mtod(m0, struct llc *); 1130 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 1131 llc->llc_control = LLC_UI; 1132 llc->llc_snap.org_code[0] = llc->llc_snap.org_code[1] = 1133 llc->llc_snap.org_code[2] = 0; 1134 llc->llc_snap.ether_type = eh.ether_type; 1135 } 1136 M_PREPEND(m0, sizeof(struct ieee80211_frame), M_DONTWAIT); 1137 if (m0 == NULL) 1138 return NULL; 1139 wh = mtod(m0, struct ieee80211_frame *); 1140 1141 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 1142 LE_WRITE_2(wh->i_dur, 0); 1143 LE_WRITE_2(wh->i_seq, 0); 1144 if (sc->sc_mib_local.Network_Mode) { 1145 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 1146 memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN); 1147 memcpy(wh->i_addr2, eh.ether_shost, ETHER_ADDR_LEN); 1148 memcpy(wh->i_addr3, eh.ether_dhost, ETHER_ADDR_LEN); 1149 } else { 1150 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1151 memcpy(wh->i_addr1, eh.ether_dhost, ETHER_ADDR_LEN); 1152 memcpy(wh->i_addr2, eh.ether_shost, ETHER_ADDR_LEN); 1153 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 1154 } 1155 return m0; 1156 } 1157 1158 static struct mbuf * 1159 awi_fix_rxhdr(sc, m0) 1160 struct awi_softc *sc; 1161 struct mbuf *m0; 1162 { 1163 struct ieee80211_frame wh; 1164 struct ether_header *eh; 1165 struct llc *llc; 1166 1167 if (m0->m_len < sizeof(wh)) { 1168 m_freem(m0); 1169 return NULL; 1170 } 1171 llc = (struct llc *)(mtod(m0, caddr_t) + sizeof(wh)); 1172 if (llc->llc_dsap == LLC_SNAP_LSAP && 1173 llc->llc_ssap == LLC_SNAP_LSAP && 1174 llc->llc_control == LLC_UI && 1175 llc->llc_snap.org_code[0] == 0 && 1176 llc->llc_snap.org_code[1] == 0 && 1177 llc->llc_snap.org_code[2] == 0) { 1178 memcpy(&wh, mtod(m0, caddr_t), sizeof(wh)); 1179 m_adj(m0, sizeof(wh) + sizeof(*llc) - sizeof(*eh)); 1180 eh = mtod(m0, struct ether_header *); 1181 switch (wh.i_fc[1] & IEEE80211_FC1_DIR_MASK) { 1182 case IEEE80211_FC1_DIR_NODS: 1183 memcpy(eh->ether_dhost, wh.i_addr1, ETHER_ADDR_LEN); 1184 memcpy(eh->ether_shost, wh.i_addr2, ETHER_ADDR_LEN); 1185 break; 1186 case IEEE80211_FC1_DIR_TODS: 1187 memcpy(eh->ether_dhost, wh.i_addr3, ETHER_ADDR_LEN); 1188 memcpy(eh->ether_shost, wh.i_addr2, ETHER_ADDR_LEN); 1189 break; 1190 case IEEE80211_FC1_DIR_FROMDS: 1191 memcpy(eh->ether_dhost, wh.i_addr1, ETHER_ADDR_LEN); 1192 memcpy(eh->ether_shost, wh.i_addr3, ETHER_ADDR_LEN); 1193 break; 1194 case IEEE80211_FC1_DIR_DSTODS: 1195 m_freem(m0); 1196 return NULL; 1197 } 1198 } else { 1199 /* assuming ethernet encapsulation, just strip 802.11 header */ 1200 m_adj(m0, sizeof(wh)); 1201 } 1202 return m0; 1203 } 1204 1205 static void 1206 awi_input(sc, m, rxts, rssi) 1207 struct awi_softc *sc; 1208 struct mbuf *m; 1209 u_int32_t rxts; 1210 u_int8_t rssi; 1211 { 1212 struct ifnet *ifp = sc->sc_ifp; 1213 struct ieee80211_frame *wh; 1214 #ifndef __NetBSD__ 1215 struct ether_header *eh; 1216 #endif 1217 1218 AWI_BPF_MTAP(sc, m, AWI_BPF_RAW); 1219 wh = mtod(m, struct ieee80211_frame *); 1220 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) != 1221 IEEE80211_FC0_VERSION_0) { 1222 printf("%s; receive packet with wrong version: %x\n", 1223 sc->sc_dev.dv_xname, wh->i_fc[0]); 1224 m_freem(m); 1225 return; 1226 } 1227 #ifdef AWI_DEBUG 1228 if (awi_dump) 1229 awi_dump_pkt(sc, m, rssi); 1230 #endif 1231 1232 if ((sc->sc_mib_local.Network_Mode || !sc->sc_no_bssid) && 1233 sc->sc_status == AWI_ST_RUNNING) { 1234 if (memcmp(wh->i_addr2, sc->sc_bss.bssid, ETHER_ADDR_LEN) == 0) { 1235 sc->sc_rx_timer = 10; 1236 sc->sc_bss.rssi = rssi; 1237 } 1238 } 1239 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 1240 case IEEE80211_FC0_TYPE_DATA: 1241 if (sc->sc_mib_local.Network_Mode) { 1242 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1243 IEEE80211_FC1_DIR_FROMDS) { 1244 m_freem(m); 1245 return; 1246 } 1247 } else { 1248 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1249 IEEE80211_FC1_DIR_NODS) { 1250 m_freem(m); 1251 return; 1252 } 1253 } 1254 m = awi_fix_rxhdr(sc, m); 1255 if (m == NULL) { 1256 ifp->if_ierrors++; 1257 break; 1258 } 1259 ifp->if_ipackets++; 1260 AWI_BPF_MTAP(sc, m, AWI_BPF_NORM); 1261 #ifdef __NetBSD__ 1262 m->m_flags |= M_HASFCS; 1263 (*ifp->if_input)(ifp, m); 1264 #else 1265 eh = mtod(m, struct ether_header *); 1266 m_adj(m, sizeof(*eh)); 1267 m_adj(m, -ETHER_CRC_LEN); 1268 ether_input(ifp, eh, m); 1269 #endif 1270 break; 1271 case IEEE80211_FC0_TYPE_MGT: 1272 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1273 IEEE80211_FC1_DIR_NODS) { 1274 m_freem(m); 1275 return; 1276 } 1277 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 1278 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 1279 case IEEE80211_FC0_SUBTYPE_BEACON: 1280 awi_recv_beacon(sc, m, rxts, rssi); 1281 break; 1282 case IEEE80211_FC0_SUBTYPE_AUTH: 1283 awi_recv_auth(sc, m); 1284 break; 1285 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 1286 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 1287 awi_recv_asresp(sc, m); 1288 break; 1289 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1290 if (sc->sc_mib_local.Network_Mode) 1291 awi_send_auth(sc); 1292 break; 1293 case IEEE80211_FC0_SUBTYPE_DISASSOC: 1294 if (sc->sc_mib_local.Network_Mode) 1295 awi_send_asreq(sc, 1); 1296 break; 1297 } 1298 m_freem(m); 1299 break; 1300 case IEEE80211_FC0_TYPE_CTL: 1301 default: 1302 /* should not come here */ 1303 m_freem(m); 1304 break; 1305 } 1306 } 1307 1308 static void 1309 awi_rxint(sc) 1310 struct awi_softc *sc; 1311 { 1312 u_int8_t state, rate, rssi; 1313 u_int16_t len; 1314 u_int32_t frame, next, rxts, rxoff; 1315 struct mbuf *m; 1316 1317 rxoff = sc->sc_rxdoff; 1318 for (;;) { 1319 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1320 if (state & AWI_RXD_ST_OWN) 1321 break; 1322 if (!(state & AWI_RXD_ST_CONSUMED)) { 1323 if (state & AWI_RXD_ST_RXERROR) 1324 sc->sc_ifp->if_ierrors++; 1325 else { 1326 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1327 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1328 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1329 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 0x7fff; 1330 rxts = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1331 m = awi_devget(sc, frame, len); 1332 if (state & AWI_RXD_ST_LF) 1333 awi_input(sc, m, rxts, rssi); 1334 else 1335 sc->sc_rxpend = m; 1336 } 1337 state |= AWI_RXD_ST_CONSUMED; 1338 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1339 } 1340 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1341 if (next & AWI_RXD_NEXT_LAST) 1342 break; 1343 /* make sure the next pointer is correct */ 1344 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1345 break; 1346 state |= AWI_RXD_ST_OWN; 1347 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1348 rxoff = next & 0x7fff; 1349 } 1350 sc->sc_rxdoff = rxoff; 1351 } 1352 1353 struct mbuf * 1354 awi_devget(sc, off, len) 1355 struct awi_softc *sc; 1356 u_int32_t off; 1357 u_int16_t len; 1358 { 1359 struct mbuf *m; 1360 struct mbuf *top, **mp = ⊤ 1361 u_int tlen; 1362 1363 top = sc->sc_rxpend; 1364 if (top != NULL) { 1365 sc->sc_rxpend = NULL; 1366 top->m_pkthdr.len += len; 1367 while ((m = *mp) != NULL) 1368 mp = &m->m_next; 1369 if (m->m_flags & M_EXT) 1370 tlen = m->m_ext.ext_size; 1371 else if (m->m_flags & M_PKTHDR) 1372 tlen = MHLEN; 1373 else 1374 tlen = MLEN; 1375 tlen -= m->m_len; 1376 if (tlen > len) 1377 tlen = len; 1378 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1379 off += tlen; 1380 len -= tlen; 1381 } 1382 1383 while (len > 0) { 1384 if (top == NULL) { 1385 MGETHDR(m, M_DONTWAIT, MT_DATA); 1386 if (m == NULL) 1387 return NULL; 1388 m->m_pkthdr.rcvif = sc->sc_ifp; 1389 m->m_pkthdr.len = len; 1390 m->m_len = MHLEN; 1391 } else { 1392 MGET(m, M_DONTWAIT, MT_DATA); 1393 if (m == NULL) { 1394 m_freem(top); 1395 return NULL; 1396 } 1397 m->m_len = MLEN; 1398 } 1399 if (len >= MINCLSIZE) { 1400 MCLGET(m, M_DONTWAIT); 1401 if (m->m_flags & M_EXT) 1402 m->m_len = m->m_ext.ext_size; 1403 } 1404 if (m->m_len > len) 1405 m->m_len = len; 1406 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1407 off += m->m_len; 1408 len -= m->m_len; 1409 *mp = m; 1410 mp = &m->m_next; 1411 } 1412 return top; 1413 } 1414 1415 /* 1416 * Initialize hardware and start firmware to accept commands. 1417 * Called everytime after power on firmware. 1418 */ 1419 1420 static int 1421 awi_init_hw(sc) 1422 struct awi_softc *sc; 1423 { 1424 u_int8_t status; 1425 u_int16_t intmask; 1426 int i, error; 1427 u_int8_t banner[AWI_BANNER_LEN]; 1428 1429 awi_drvstate(sc, AWI_DRV_RESET); 1430 1431 /* reset firmware */ 1432 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1433 DELAY(100); 1434 awi_write_1(sc, AWI_SELFTEST, 0); 1435 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1436 DELAY(100); 1437 1438 /* wait for selftest completion */ 1439 for (i = 0; ; i++) { 1440 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1441 printf("%s: failed to complete selftest (timeout)\n", 1442 sc->sc_dev.dv_xname); 1443 return ENXIO; 1444 } 1445 status = awi_read_1(sc, AWI_SELFTEST); 1446 if ((status & 0xf0) == 0xf0) 1447 break; 1448 if (sc->sc_cansleep) { 1449 sc->sc_sleep_cnt++; 1450 (void)tsleep(sc, PWAIT, "awitst", 1); 1451 sc->sc_sleep_cnt--; 1452 } else { 1453 DELAY(1000*1000/hz); 1454 } 1455 } 1456 if (status != AWI_SELFTEST_PASSED) { 1457 printf("%s: failed to complete selftest (code %x)\n", 1458 sc->sc_dev.dv_xname, status); 1459 return ENXIO; 1460 } 1461 1462 /* check banner to confirm firmware write it */ 1463 awi_read_bytes(sc, AWI_BANNER, banner, AWI_BANNER_LEN); 1464 if (memcmp(banner, "PCnetMobile:", 12) != 0) { 1465 printf("%s: failed to complete selftest (bad banner)\n", 1466 sc->sc_dev.dv_xname); 1467 for (i = 0; i < AWI_BANNER_LEN; i++) 1468 printf("%s%02x", i ? ":" : "\t", banner[i]); 1469 printf("\n"); 1470 return ENXIO; 1471 } 1472 1473 /* initializing interrupt */ 1474 error = awi_intr_lock(sc); 1475 if (error) 1476 return error; 1477 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1478 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1479 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1480 awi_write_1(sc, AWI_INTMASK2, 0); 1481 awi_write_1(sc, AWI_INTSTAT, 0); 1482 awi_write_1(sc, AWI_INTSTAT2, 0); 1483 awi_intr_unlock(sc); 1484 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1485 1486 /* issueing interface test command */ 1487 error = awi_cmd(sc, AWI_CMD_NOP); 1488 if (error) { 1489 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1490 if (error != EWOULDBLOCK) 1491 printf(" (error %d)\n", error); 1492 else if (sc->sc_cansleep) 1493 printf(" (lost interrupt)\n"); 1494 else 1495 printf(" (command timeout)\n"); 1496 } 1497 return error; 1498 } 1499 1500 /* 1501 * Extract the factory default MIB value from firmware and assign the driver 1502 * default value. 1503 * Called once at attaching the interface. 1504 */ 1505 1506 static int 1507 awi_init_mibs(sc) 1508 struct awi_softc *sc; 1509 { 1510 int i, error; 1511 u_int8_t *rate; 1512 1513 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL)) != 0 || 1514 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR)) != 0 || 1515 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC)) != 0 || 1516 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT)) != 0 || 1517 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY)) != 0) { 1518 printf("%s: failed to get default mib value (error %d)\n", 1519 sc->sc_dev.dv_xname, error); 1520 return error; 1521 } 1522 1523 rate = sc->sc_mib_phy.aSuprt_Data_Rates; 1524 sc->sc_tx_rate = AWI_RATE_1MBIT; 1525 for (i = 0; i < rate[1]; i++) { 1526 if (AWI_80211_RATE(rate[2 + i]) > sc->sc_tx_rate) 1527 sc->sc_tx_rate = AWI_80211_RATE(rate[2 + i]); 1528 } 1529 awi_init_region(sc); 1530 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1531 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1532 sc->sc_mib_local.Fragmentation_Dis = 1; 1533 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1534 1535 /* allocate buffers */ 1536 sc->sc_txbase = AWI_BUFFERS; 1537 sc->sc_txend = sc->sc_txbase + 1538 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1539 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1540 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1541 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1542 sc->sc_txend - sc->sc_txbase); 1543 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1544 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1545 AWI_BUFFERS_END - sc->sc_txend); 1546 sc->sc_mib_local.Network_Mode = 1; 1547 sc->sc_mib_local.Acting_as_AP = 0; 1548 return 0; 1549 } 1550 1551 /* 1552 * Start transmitter and receiver of firmware 1553 * Called after awi_init_hw() to start operation. 1554 */ 1555 1556 static int 1557 awi_init_txrx(sc) 1558 struct awi_softc *sc; 1559 { 1560 int error; 1561 1562 /* start transmitter */ 1563 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 1564 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 1565 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 1566 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 1567 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 1568 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 1569 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 1570 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 1571 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_DATA, sc->sc_txbase); 1572 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_MGT, 0); 1573 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_BCAST, 0); 1574 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_PS, 0); 1575 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_CF, 0); 1576 error = awi_cmd(sc, AWI_CMD_INIT_TX); 1577 if (error) 1578 return error; 1579 1580 /* start receiver */ 1581 if (sc->sc_rxpend) { 1582 m_freem(sc->sc_rxpend); 1583 sc->sc_rxpend = NULL; 1584 } 1585 error = awi_cmd(sc, AWI_CMD_INIT_RX); 1586 if (error) 1587 return error; 1588 sc->sc_rxdoff = awi_read_4(sc, AWI_CMD_PARAMS+AWI_CA_IRX_DATA_DESC); 1589 sc->sc_rxmoff = awi_read_4(sc, AWI_CMD_PARAMS+AWI_CA_IRX_PS_DESC); 1590 return 0; 1591 } 1592 1593 static void 1594 awi_stop_txrx(sc) 1595 struct awi_softc *sc; 1596 { 1597 1598 (void)awi_cmd(sc, AWI_CMD_KILL_RX); 1599 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_DATA, 1); 1600 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_MGT, 0); 1601 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_BCAST, 0); 1602 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_PS, 0); 1603 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_CF, 0); 1604 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX); 1605 } 1606 1607 static int 1608 awi_init_region(sc) 1609 struct awi_softc *sc; 1610 { 1611 1612 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1613 switch (sc->sc_mib_phy.aCurrent_Reg_Domain) { 1614 case AWI_REG_DOMAIN_US: 1615 case AWI_REG_DOMAIN_CA: 1616 case AWI_REG_DOMAIN_EU: 1617 sc->sc_scan_min = 0; 1618 sc->sc_scan_max = 77; 1619 break; 1620 case AWI_REG_DOMAIN_ES: 1621 sc->sc_scan_min = 0; 1622 sc->sc_scan_max = 26; 1623 break; 1624 case AWI_REG_DOMAIN_FR: 1625 sc->sc_scan_min = 0; 1626 sc->sc_scan_max = 32; 1627 break; 1628 case AWI_REG_DOMAIN_JP: 1629 sc->sc_scan_min = 6; 1630 sc->sc_scan_max = 17; 1631 break; 1632 default: 1633 return EINVAL; 1634 } 1635 sc->sc_scan_cur = sc->sc_scan_min; 1636 sc->sc_scan_set = sc->sc_scan_cur % 3 + 1; 1637 } else { 1638 switch (sc->sc_mib_phy.aCurrent_Reg_Domain) { 1639 case AWI_REG_DOMAIN_US: 1640 case AWI_REG_DOMAIN_CA: 1641 sc->sc_scan_min = 1; 1642 sc->sc_scan_max = 11; 1643 sc->sc_scan_cur = 3; 1644 break; 1645 case AWI_REG_DOMAIN_EU: 1646 sc->sc_scan_min = 1; 1647 sc->sc_scan_max = 13; 1648 sc->sc_scan_cur = 3; 1649 break; 1650 case AWI_REG_DOMAIN_ES: 1651 sc->sc_scan_min = 10; 1652 sc->sc_scan_max = 11; 1653 sc->sc_scan_cur = 10; 1654 break; 1655 case AWI_REG_DOMAIN_FR: 1656 sc->sc_scan_min = 10; 1657 sc->sc_scan_max = 13; 1658 sc->sc_scan_cur = 10; 1659 break; 1660 case AWI_REG_DOMAIN_JP: 1661 sc->sc_scan_min = 14; 1662 sc->sc_scan_max = 14; 1663 sc->sc_scan_cur = 14; 1664 break; 1665 default: 1666 return EINVAL; 1667 } 1668 } 1669 return 0; 1670 } 1671 1672 static int 1673 awi_start_scan(sc) 1674 struct awi_softc *sc; 1675 { 1676 int error = 0; 1677 1678 if (!sc->sc_mib_local.Network_Mode && sc->sc_no_bssid) { 1679 memset(&sc->sc_bss, 0, sizeof(sc->sc_bss)); 1680 sc->sc_bss.rxtime = 0; 1681 memcpy(sc->sc_bss.essid, &sc->sc_mib_mac.aDesired_ESS_ID, 1682 sizeof(sc->sc_bss.essid)); 1683 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1684 sc->sc_bss.chanset = sc->sc_scan_set; 1685 sc->sc_bss.pattern = sc->sc_scan_cur; 1686 sc->sc_bss.index = 1; 1687 sc->sc_bss.dwell_time = 19; /*XXX*/ 1688 } else 1689 sc->sc_bss.chanset = sc->sc_scan_cur; 1690 sc->sc_status = AWI_ST_SETSS; 1691 error = awi_set_ss(sc); 1692 } else { 1693 if (sc->sc_mib_local.Network_Mode) 1694 awi_drvstate(sc, AWI_DRV_INFSC); 1695 else 1696 awi_drvstate(sc, AWI_DRV_ADHSC); 1697 sc->sc_start_bss = 0; 1698 sc->sc_active_scan = 1; 1699 sc->sc_mgt_timer = AWI_ASCAN_WAIT / 1000; 1700 sc->sc_ifp->if_timer = 1; 1701 sc->sc_status = AWI_ST_SCAN; 1702 error = awi_cmd_scan(sc); 1703 } 1704 return error; 1705 } 1706 1707 static int 1708 awi_next_scan(sc) 1709 struct awi_softc *sc; 1710 { 1711 int error; 1712 1713 for (;;) { 1714 /* 1715 * The pattern parameter for FH phy should be incremented 1716 * by 3. But BayStack 650 Access Points apparently always 1717 * assign hop pattern set parameter to 1 for any pattern. 1718 * So we try all combinations of pattern/set parameters. 1719 * Since this causes no error, it may be a bug of 1720 * PCnetMobile firmware. 1721 */ 1722 sc->sc_scan_cur++; 1723 if (sc->sc_scan_cur > sc->sc_scan_max) { 1724 sc->sc_scan_cur = sc->sc_scan_min; 1725 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 1726 sc->sc_scan_set = (sc->sc_scan_set + 1) % 3; 1727 } 1728 error = awi_cmd_scan(sc); 1729 if (error != EINVAL) 1730 break; 1731 } 1732 return error; 1733 } 1734 1735 static void 1736 awi_stop_scan(sc) 1737 struct awi_softc *sc; 1738 { 1739 struct ifnet *ifp = sc->sc_ifp; 1740 struct awi_bss *bp, *sbp; 1741 1742 bp = TAILQ_FIRST(&sc->sc_scan); 1743 if (bp == NULL) { 1744 notfound: 1745 if (sc->sc_active_scan) { 1746 if (ifp->if_flags & IFF_DEBUG) 1747 printf("%s: entering passive scan mode\n", 1748 sc->sc_dev.dv_xname); 1749 sc->sc_active_scan = 0; 1750 } 1751 sc->sc_mgt_timer = AWI_PSCAN_WAIT / 1000; 1752 ifp->if_timer = 1; 1753 (void)awi_next_scan(sc); 1754 return; 1755 } 1756 sbp = NULL; 1757 for (; bp != NULL; bp = TAILQ_NEXT(bp, list)) { 1758 if (bp->fails) { 1759 /* 1760 * The configuration of the access points may change 1761 * during my scan. So we retries to associate with 1762 * it unless there are any suitable AP. 1763 */ 1764 if (bp->fails < 3) 1765 continue; 1766 bp->fails = 0; 1767 } 1768 if (sc->sc_mib_mac.aDesired_ESS_ID[1] != 0 && 1769 memcmp(&sc->sc_mib_mac.aDesired_ESS_ID, bp->essid, 1770 sizeof(bp->essid) != 0)) 1771 continue; 1772 /* 1773 * Since the firmware apparently scans not only the specified 1774 * channel of SCAN command but all available channel within 1775 * the region, we should filter out unnecessary responses here. 1776 */ 1777 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1778 if (bp->pattern < sc->sc_scan_min || 1779 bp->pattern > sc->sc_scan_max) 1780 continue; 1781 } else { 1782 if (bp->chanset < sc->sc_scan_min || 1783 bp->chanset > sc->sc_scan_max) 1784 continue; 1785 } 1786 if (sbp == NULL || bp->rssi > sbp->rssi) 1787 sbp = bp; 1788 } 1789 if (sbp == NULL) 1790 goto notfound; 1791 sc->sc_bss = *sbp; 1792 (void)awi_set_ss(sc); 1793 } 1794 1795 static void 1796 awi_recv_beacon(sc, m0, rxts, rssi) 1797 struct awi_softc *sc; 1798 struct mbuf *m0; 1799 u_int32_t rxts; 1800 u_int8_t rssi; 1801 { 1802 struct ieee80211_frame *wh; 1803 struct awi_bss *bp; 1804 u_int8_t *frame, *eframe; 1805 u_int8_t *tstamp, *capinfo, *ssid, *rates, *parms; 1806 u_int16_t bintval; 1807 1808 if (sc->sc_status != AWI_ST_SCAN) 1809 return; 1810 wh = mtod(m0, struct ieee80211_frame *); 1811 1812 frame = (u_int8_t *)&wh[1]; 1813 eframe = mtod(m0, u_int8_t *) + m0->m_len; 1814 /* 1815 * XXX: 1816 * timestamp [8] 1817 * beacon interval [2] 1818 * capability information [2] 1819 * ssid [tlv] 1820 * supported rates [tlv] 1821 * parameter set [tlv] 1822 * ... 1823 */ 1824 if (frame + 12 > eframe) { 1825 #ifdef AWI_DEBUG 1826 if (awi_verbose) 1827 printf("awi_recv_beacon: frame too short \n"); 1828 #endif 1829 return; 1830 } 1831 tstamp = frame; 1832 frame += 8; 1833 bintval = LE_READ_2(frame); 1834 frame += 2; 1835 capinfo = frame; 1836 frame += 2; 1837 1838 if (sc->sc_mib_local.Network_Mode) { 1839 if (!(capinfo[0] & IEEE80211_CAPINFO_ESS) || 1840 (capinfo[0] & IEEE80211_CAPINFO_IBSS)) { 1841 #ifdef AWI_DEBUG 1842 if (awi_verbose) 1843 printf("awi_recv_beacon: non ESS \n"); 1844 #endif 1845 return; 1846 } 1847 } else { 1848 if ((capinfo[0] & IEEE80211_CAPINFO_ESS) || 1849 !(capinfo[0] & IEEE80211_CAPINFO_IBSS)) { 1850 #ifdef AWI_DEBUG 1851 if (awi_verbose) 1852 printf("awi_recv_beacon: non IBSS \n"); 1853 #endif 1854 return; 1855 } 1856 } 1857 1858 ssid = rates = parms = NULL; 1859 while (frame < eframe) { 1860 switch (*frame) { 1861 case IEEE80211_ELEMID_SSID: 1862 ssid = frame; 1863 break; 1864 case IEEE80211_ELEMID_RATES: 1865 rates = frame; 1866 break; 1867 case IEEE80211_ELEMID_FHPARMS: 1868 case IEEE80211_ELEMID_DSPARMS: 1869 parms = frame; 1870 break; 1871 } 1872 frame += frame[1] + 2; 1873 } 1874 if (ssid == NULL || rates == NULL || parms == NULL) { 1875 #ifdef AWI_DEBUG 1876 if (awi_verbose) 1877 printf("awi_recv_beacon: ssid=%p, rates=%p, parms=%p\n", 1878 ssid, rates, parms); 1879 #endif 1880 return; 1881 } 1882 if (ssid[1] > IEEE80211_NWID_LEN) { 1883 #ifdef AWI_DEBUG 1884 if (awi_verbose) 1885 printf("awi_recv_beacon: bad ssid len: %d from %s\n", 1886 ssid[1], ether_sprintf(wh->i_addr2)); 1887 #endif 1888 return; 1889 } 1890 1891 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 1892 bp = TAILQ_NEXT(bp, list)) { 1893 if (memcmp(bp->esrc, wh->i_addr2, ETHER_ADDR_LEN) == 0 && 1894 memcmp(bp->bssid, wh->i_addr3, ETHER_ADDR_LEN) == 0) 1895 break; 1896 } 1897 if (bp == NULL) { 1898 bp = malloc(sizeof(struct awi_bss), M_DEVBUF, M_NOWAIT); 1899 if (bp == NULL) 1900 return; 1901 TAILQ_INSERT_TAIL(&sc->sc_scan, bp, list); 1902 memcpy(bp->esrc, wh->i_addr2, ETHER_ADDR_LEN); 1903 memcpy(bp->bssid, wh->i_addr3, ETHER_ADDR_LEN); 1904 memset(bp->essid, 0, sizeof(bp->essid)); 1905 memcpy(bp->essid, ssid, 2 + ssid[1]); 1906 } 1907 bp->rssi = rssi; 1908 bp->rxtime = rxts; 1909 memcpy(bp->timestamp, tstamp, sizeof(bp->timestamp)); 1910 bp->interval = bintval; 1911 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1912 bp->chanset = parms[4]; 1913 bp->pattern = parms[5]; 1914 bp->index = parms[6]; 1915 bp->dwell_time = LE_READ_2(parms + 2); 1916 } else { 1917 bp->chanset = parms[2]; 1918 bp->pattern = 0; 1919 bp->index = 0; 1920 bp->dwell_time = 0; 1921 } 1922 if (sc->sc_mgt_timer == 0) 1923 awi_stop_scan(sc); 1924 } 1925 1926 static int 1927 awi_set_ss(sc) 1928 struct awi_softc *sc; 1929 { 1930 struct ifnet *ifp = sc->sc_ifp; 1931 struct awi_bss *bp; 1932 int error; 1933 1934 sc->sc_status = AWI_ST_SETSS; 1935 bp = &sc->sc_bss; 1936 if (ifp->if_flags & IFF_DEBUG) { 1937 printf("%s: ch %d pat %d id %d dw %d iv %d bss %s ssid \"%s\"\n", 1938 sc->sc_dev.dv_xname, bp->chanset, 1939 bp->pattern, bp->index, bp->dwell_time, bp->interval, 1940 ether_sprintf(bp->bssid), bp->essid + 2); 1941 } 1942 memcpy(&sc->sc_mib_mgt.aCurrent_BSS_ID, bp->bssid, ETHER_ADDR_LEN); 1943 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID, bp->essid, 1944 AWI_ESS_ID_SIZE); 1945 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, bp->interval); 1946 error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT); 1947 return error; 1948 } 1949 1950 static void 1951 awi_try_sync(sc) 1952 struct awi_softc *sc; 1953 { 1954 struct awi_bss *bp; 1955 1956 sc->sc_status = AWI_ST_SYNC; 1957 bp = &sc->sc_bss; 1958 1959 if (sc->sc_cmd_inprog) { 1960 if (awi_cmd_wait(sc)) 1961 return; 1962 } 1963 sc->sc_cmd_inprog = 1; 1964 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_SET, bp->chanset); 1965 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_PATTERN, bp->pattern); 1966 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_IDX, bp->index); 1967 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_STARTBSS, 1968 sc->sc_start_bss ? 1 : 0); 1969 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_DWELL, bp->dwell_time); 1970 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_MBZ, 0); 1971 awi_write_bytes(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_TIMESTAMP, 1972 bp->timestamp, 8); 1973 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_REFTIME, bp->rxtime); 1974 (void)awi_cmd(sc, AWI_CMD_SYNC); 1975 } 1976 1977 static void 1978 awi_sync_done(sc) 1979 struct awi_softc *sc; 1980 { 1981 struct ifnet *ifp = sc->sc_ifp; 1982 1983 if (sc->sc_mib_local.Network_Mode) { 1984 awi_drvstate(sc, AWI_DRV_INFSY); 1985 awi_send_auth(sc); 1986 } else { 1987 printf("%s: synced with %s ssid \"%s\" at chanset %d\n", 1988 sc->sc_dev.dv_xname, ether_sprintf(sc->sc_bss.bssid), 1989 sc->sc_bss.essid + 2, sc->sc_bss.chanset); 1990 awi_drvstate(sc, AWI_DRV_ADHSY); 1991 sc->sc_status = AWI_ST_RUNNING; 1992 ifp->if_flags |= IFF_RUNNING; 1993 awi_start(ifp); 1994 } 1995 } 1996 1997 static void 1998 awi_send_deauth(sc) 1999 struct awi_softc *sc; 2000 { 2001 struct ifnet *ifp = sc->sc_ifp; 2002 struct mbuf *m; 2003 struct ieee80211_frame *wh; 2004 u_int8_t *deauth; 2005 2006 MGETHDR(m, M_DONTWAIT, MT_DATA); 2007 if (m == NULL) 2008 return; 2009 if (ifp->if_flags & IFF_DEBUG) 2010 printf("%s: sending deauth to %s\n", sc->sc_dev.dv_xname, 2011 ether_sprintf(sc->sc_bss.bssid)); 2012 2013 wh = mtod(m, struct ieee80211_frame *); 2014 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2015 IEEE80211_FC0_SUBTYPE_AUTH; 2016 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2017 LE_WRITE_2(wh->i_dur, 0); 2018 LE_WRITE_2(wh->i_seq, 0); 2019 memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2020 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2021 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2022 2023 deauth = (u_int8_t *)&wh[1]; 2024 LE_WRITE_2(deauth, IEEE80211_REASON_AUTH_LEAVE); 2025 deauth += 2; 2026 2027 m->m_pkthdr.len = m->m_len = deauth - mtod(m, u_int8_t *); 2028 IF_ENQUEUE(&sc->sc_mgtq, m); 2029 awi_start(ifp); 2030 awi_drvstate(sc, AWI_DRV_INFTOSS); 2031 } 2032 2033 static void 2034 awi_send_auth(sc) 2035 struct awi_softc *sc; 2036 { 2037 struct ifnet *ifp = sc->sc_ifp; 2038 struct mbuf *m; 2039 struct ieee80211_frame *wh; 2040 u_int8_t *auth; 2041 2042 MGETHDR(m, M_DONTWAIT, MT_DATA); 2043 if (m == NULL) 2044 return; 2045 sc->sc_status = AWI_ST_AUTH; 2046 if (ifp->if_flags & IFF_DEBUG) 2047 printf("%s: sending auth to %s\n", sc->sc_dev.dv_xname, 2048 ether_sprintf(sc->sc_bss.bssid)); 2049 2050 wh = mtod(m, struct ieee80211_frame *); 2051 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2052 IEEE80211_FC0_SUBTYPE_AUTH; 2053 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2054 LE_WRITE_2(wh->i_dur, 0); 2055 LE_WRITE_2(wh->i_seq, 0); 2056 memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2057 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2058 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2059 2060 auth = (u_int8_t *)&wh[1]; 2061 /* algorithm number */ 2062 LE_WRITE_2(auth, IEEE80211_AUTH_ALG_OPEN); 2063 auth += 2; 2064 /* sequence number */ 2065 LE_WRITE_2(auth, 1); 2066 auth += 2; 2067 /* status */ 2068 LE_WRITE_2(auth, 0); 2069 auth += 2; 2070 2071 m->m_pkthdr.len = m->m_len = auth - mtod(m, u_int8_t *); 2072 IF_ENQUEUE(&sc->sc_mgtq, m); 2073 awi_start(ifp); 2074 2075 sc->sc_mgt_timer = AWI_TRANS_TIMEOUT / 1000; 2076 ifp->if_timer = 1; 2077 } 2078 2079 static void 2080 awi_recv_auth(sc, m0) 2081 struct awi_softc *sc; 2082 struct mbuf *m0; 2083 { 2084 struct ieee80211_frame *wh; 2085 u_int8_t *auth, *eframe; 2086 struct awi_bss *bp; 2087 u_int16_t status; 2088 2089 wh = mtod(m0, struct ieee80211_frame *); 2090 auth = (u_int8_t *)&wh[1]; 2091 eframe = mtod(m0, u_int8_t *) + m0->m_len; 2092 if (sc->sc_ifp->if_flags & IFF_DEBUG) 2093 printf("%s: receive auth from %s\n", sc->sc_dev.dv_xname, 2094 ether_sprintf(wh->i_addr2)); 2095 2096 if (!sc->sc_mib_local.Network_Mode) { 2097 /* XXX: 802.11 allow auth for IBSS */ 2098 return; 2099 } 2100 if (sc->sc_status != AWI_ST_AUTH) 2101 return; 2102 /* algorithm number */ 2103 if (LE_READ_2(auth) != IEEE80211_AUTH_ALG_OPEN) 2104 return; 2105 auth += 2; 2106 /* sequence number */ 2107 if (LE_READ_2(auth) != 2) 2108 return; 2109 auth += 2; 2110 /* status */ 2111 status = LE_READ_2(auth); 2112 if (status != 0) { 2113 printf("%s: authentication failed (reason %d)\n", 2114 sc->sc_dev.dv_xname, status); 2115 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 2116 bp = TAILQ_NEXT(bp, list)) { 2117 if (memcmp(bp->esrc, sc->sc_bss.esrc, ETHER_ADDR_LEN) 2118 == 0) { 2119 bp->fails++; 2120 break; 2121 } 2122 } 2123 return; 2124 } 2125 sc->sc_mgt_timer = 0; 2126 awi_drvstate(sc, AWI_DRV_INFAUTH); 2127 awi_send_asreq(sc, 0); 2128 } 2129 2130 static void 2131 awi_send_asreq(sc, reassoc) 2132 struct awi_softc *sc; 2133 int reassoc; 2134 { 2135 struct ifnet *ifp = sc->sc_ifp; 2136 struct mbuf *m; 2137 struct ieee80211_frame *wh; 2138 u_int16_t lintval; 2139 u_int8_t *asreq; 2140 2141 MGETHDR(m, M_DONTWAIT, MT_DATA); 2142 if (m == NULL) 2143 return; 2144 sc->sc_status = AWI_ST_ASSOC; 2145 if (ifp->if_flags & IFF_DEBUG) 2146 printf("%s: sending %sassoc req to %s\n", sc->sc_dev.dv_xname, 2147 reassoc ? "re" : "", 2148 ether_sprintf(sc->sc_bss.bssid)); 2149 2150 wh = mtod(m, struct ieee80211_frame *); 2151 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT; 2152 if (reassoc) 2153 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_REASSOC_REQ; 2154 else 2155 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_ASSOC_REQ; 2156 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2157 LE_WRITE_2(wh->i_dur, 0); 2158 LE_WRITE_2(wh->i_seq, 0); 2159 memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2160 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2161 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2162 2163 asreq = (u_int8_t *)&wh[1]; 2164 2165 /* capability info */ 2166 LE_WRITE_2(asreq, IEEE80211_CAPINFO_CF_POLLABLE); 2167 asreq += 2; 2168 /* listen interval */ 2169 lintval = LE_READ_2(&sc->sc_mib_mgt.aListen_Interval); 2170 LE_WRITE_2(asreq, lintval); 2171 asreq += 2; 2172 if (reassoc) { 2173 /* current AP address */ 2174 memcpy(asreq, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2175 asreq += ETHER_ADDR_LEN; 2176 } 2177 /* ssid */ 2178 memcpy(asreq, sc->sc_bss.essid, 2 + sc->sc_bss.essid[1]); 2179 asreq += 2 + asreq[1]; 2180 /* supported rates */ 2181 memcpy(asreq, &sc->sc_mib_phy.aSuprt_Data_Rates, 4); 2182 asreq += 2 + asreq[1]; 2183 2184 m->m_pkthdr.len = m->m_len = asreq - mtod(m, u_int8_t *); 2185 IF_ENQUEUE(&sc->sc_mgtq, m); 2186 awi_start(ifp); 2187 2188 sc->sc_mgt_timer = AWI_TRANS_TIMEOUT / 1000; 2189 ifp->if_timer = 1; 2190 } 2191 2192 static void 2193 awi_recv_asresp(sc, m0) 2194 struct awi_softc *sc; 2195 struct mbuf *m0; 2196 { 2197 struct ieee80211_frame *wh; 2198 u_int8_t *asresp, *eframe; 2199 u_int16_t status; 2200 u_int8_t rate, *phy_rates; 2201 struct awi_bss *bp; 2202 int i, j; 2203 2204 wh = mtod(m0, struct ieee80211_frame *); 2205 asresp = (u_int8_t *)&wh[1]; 2206 eframe = mtod(m0, u_int8_t *) + m0->m_len; 2207 if (sc->sc_ifp->if_flags & IFF_DEBUG) 2208 printf("%s: receive assoc resp from %s\n", sc->sc_dev.dv_xname, 2209 ether_sprintf(wh->i_addr2)); 2210 2211 if (!sc->sc_mib_local.Network_Mode) 2212 return; 2213 2214 if (sc->sc_status != AWI_ST_ASSOC) 2215 return; 2216 /* capability info */ 2217 asresp += 2; 2218 /* status */ 2219 status = LE_READ_2(asresp); 2220 if (status != 0) { 2221 printf("%s: association failed (reason %d)\n", 2222 sc->sc_dev.dv_xname, status); 2223 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 2224 bp = TAILQ_NEXT(bp, list)) { 2225 if (memcmp(bp->esrc, sc->sc_bss.esrc, ETHER_ADDR_LEN) 2226 == 0) { 2227 bp->fails++; 2228 break; 2229 } 2230 } 2231 return; 2232 } 2233 asresp += 2; 2234 /* association id */ 2235 asresp += 2; 2236 /* supported rates */ 2237 rate = AWI_RATE_1MBIT; 2238 for (i = 0; i < asresp[1]; i++) { 2239 if (AWI_80211_RATE(asresp[2 + i]) <= rate) 2240 continue; 2241 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 2242 for (j = 0; j < phy_rates[1]; j++) { 2243 if (AWI_80211_RATE(asresp[2 + i]) == 2244 AWI_80211_RATE(phy_rates[2 + j])) 2245 rate = AWI_80211_RATE(asresp[2 + i]); 2246 } 2247 } 2248 printf("%s: associated with %s ssid \"%s\"", 2249 sc->sc_dev.dv_xname, ether_sprintf(sc->sc_bss.bssid), 2250 sc->sc_bss.essid + 2); 2251 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 2252 printf(" chanset %d pattern %d", 2253 sc->sc_bss.chanset, sc->sc_bss.pattern); 2254 else 2255 printf(" channel %d", sc->sc_bss.chanset); 2256 printf(" signal %d\n", sc->sc_bss.rssi); 2257 sc->sc_tx_rate = rate; 2258 sc->sc_mgt_timer = 0; 2259 sc->sc_rx_timer = 10; 2260 sc->sc_ifp->if_timer = 1; 2261 sc->sc_status = AWI_ST_RUNNING; 2262 sc->sc_ifp->if_flags |= IFF_RUNNING; 2263 awi_drvstate(sc, AWI_DRV_INFASSOC); 2264 while ((bp = TAILQ_FIRST(&sc->sc_scan)) != NULL) 2265 TAILQ_REMOVE(&sc->sc_scan, bp, list); 2266 awi_start(sc->sc_ifp); 2267 } 2268 2269 static int 2270 awi_mib(sc, cmd, mib) 2271 struct awi_softc *sc; 2272 u_int8_t cmd; 2273 u_int8_t mib; 2274 { 2275 int error; 2276 u_int8_t size, *ptr; 2277 2278 switch (mib) { 2279 case AWI_MIB_LOCAL: 2280 ptr = (u_int8_t *)&sc->sc_mib_local; 2281 size = sizeof(sc->sc_mib_local); 2282 break; 2283 case AWI_MIB_ADDR: 2284 ptr = (u_int8_t *)&sc->sc_mib_addr; 2285 size = sizeof(sc->sc_mib_addr); 2286 break; 2287 case AWI_MIB_MAC: 2288 ptr = (u_int8_t *)&sc->sc_mib_mac; 2289 size = sizeof(sc->sc_mib_mac); 2290 break; 2291 case AWI_MIB_STAT: 2292 ptr = (u_int8_t *)&sc->sc_mib_stat; 2293 size = sizeof(sc->sc_mib_stat); 2294 break; 2295 case AWI_MIB_MGT: 2296 ptr = (u_int8_t *)&sc->sc_mib_mgt; 2297 size = sizeof(sc->sc_mib_mgt); 2298 break; 2299 case AWI_MIB_PHY: 2300 ptr = (u_int8_t *)&sc->sc_mib_phy; 2301 size = sizeof(sc->sc_mib_phy); 2302 break; 2303 default: 2304 return EINVAL; 2305 } 2306 if (sc->sc_cmd_inprog) { 2307 error = awi_cmd_wait(sc); 2308 if (error) { 2309 printf("awi_mib: cmd %d inprog\n", 2310 awi_read_1(sc, AWI_CMD)); 2311 return error; 2312 } 2313 } 2314 sc->sc_cmd_inprog = 1; 2315 if (cmd == AWI_CMD_SET_MIB) 2316 awi_write_bytes(sc, AWI_CMD_PARAMS+AWI_CA_MIB_DATA, ptr, size); 2317 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_TYPE, mib); 2318 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_SIZE, size); 2319 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_INDEX, 0); 2320 error = awi_cmd(sc, cmd); 2321 if (error) 2322 return error; 2323 if (cmd == AWI_CMD_GET_MIB) { 2324 awi_read_bytes(sc, AWI_CMD_PARAMS+AWI_CA_MIB_DATA, ptr, size); 2325 #ifdef AWI_DEBUG 2326 if (awi_verbose) { 2327 int i; 2328 2329 printf("awi_mib: #%d:", mib); 2330 for (i = 0; i < size; i++) 2331 printf(" %02x", ptr[i]); 2332 printf("\n"); 2333 } 2334 #endif 2335 } 2336 return 0; 2337 } 2338 2339 static int 2340 awi_cmd_scan(sc) 2341 struct awi_softc *sc; 2342 { 2343 int error; 2344 u_int8_t scan_mode; 2345 2346 if (sc->sc_active_scan) 2347 scan_mode = AWI_SCAN_ACTIVE; 2348 else 2349 scan_mode = AWI_SCAN_PASSIVE; 2350 if (sc->sc_mib_mgt.aScan_Mode != scan_mode) { 2351 sc->sc_mib_mgt.aScan_Mode = scan_mode; 2352 error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT); 2353 return error; 2354 } 2355 2356 if (sc->sc_cmd_inprog) { 2357 error = awi_cmd_wait(sc); 2358 if (error) 2359 return error; 2360 } 2361 sc->sc_cmd_inprog = 1; 2362 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_DURATION, 2363 sc->sc_active_scan ? AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 2364 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 2365 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SET, 2366 sc->sc_scan_set); 2367 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_PATTERN, 2368 sc->sc_scan_cur); 2369 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_IDX, 1); 2370 } else { 2371 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SET, 2372 sc->sc_scan_cur); 2373 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_PATTERN, 0); 2374 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_IDX, 0); 2375 } 2376 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SUSP, 0); 2377 return awi_cmd(sc, AWI_CMD_SCAN); 2378 } 2379 2380 static int 2381 awi_cmd(sc, cmd) 2382 struct awi_softc *sc; 2383 u_int8_t cmd; 2384 { 2385 u_int8_t status; 2386 int error = 0; 2387 2388 sc->sc_cmd_inprog = 1; 2389 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 2390 awi_write_1(sc, AWI_CMD, cmd); 2391 if (sc->sc_status != AWI_ST_INIT) 2392 return 0; 2393 error = awi_cmd_wait(sc); 2394 if (error) 2395 return error; 2396 status = awi_read_1(sc, AWI_CMD_STATUS); 2397 awi_write_1(sc, AWI_CMD, 0); 2398 switch (status) { 2399 case AWI_STAT_OK: 2400 break; 2401 case AWI_STAT_BADPARM: 2402 return EINVAL; 2403 default: 2404 printf("%s: command %d failed %x\n", 2405 sc->sc_dev.dv_xname, cmd, status); 2406 return ENXIO; 2407 } 2408 return 0; 2409 } 2410 2411 static void 2412 awi_cmd_done(sc) 2413 struct awi_softc *sc; 2414 { 2415 u_int8_t cmd, status; 2416 2417 status = awi_read_1(sc, AWI_CMD_STATUS); 2418 if (status == AWI_STAT_IDLE) 2419 return; /* stray interrupt */ 2420 2421 sc->sc_cmd_inprog = 0; 2422 if (sc->sc_status == AWI_ST_INIT) { 2423 wakeup(sc); 2424 return; 2425 } 2426 cmd = awi_read_1(sc, AWI_CMD); 2427 awi_write_1(sc, AWI_CMD, 0); 2428 2429 if (status != AWI_STAT_OK) { 2430 printf("%s: command %d failed %x\n", 2431 sc->sc_dev.dv_xname, cmd, status); 2432 return; 2433 } 2434 switch (sc->sc_status) { 2435 case AWI_ST_SCAN: 2436 if (cmd == AWI_CMD_SET_MIB) 2437 awi_cmd_scan(sc); /* retry */ 2438 break; 2439 case AWI_ST_SETSS: 2440 awi_try_sync(sc); 2441 break; 2442 case AWI_ST_SYNC: 2443 awi_sync_done(sc); 2444 break; 2445 default: 2446 break; 2447 } 2448 } 2449 2450 static int 2451 awi_next_txd(sc, len, framep, ntxdp) 2452 struct awi_softc *sc; 2453 int len; 2454 u_int32_t *framep, *ntxdp; 2455 { 2456 u_int32_t txd, ntxd, frame; 2457 2458 txd = sc->sc_txnext; 2459 frame = txd + AWI_TXD_SIZE; 2460 if (frame + len > sc->sc_txend) 2461 frame = sc->sc_txbase; 2462 ntxd = frame + len; 2463 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 2464 ntxd = sc->sc_txbase; 2465 *framep = frame; 2466 *ntxdp = ntxd; 2467 /* 2468 * Determine if there are any room in ring buffer. 2469 * --- send wait, === new data, +++ conflict (ENOBUFS) 2470 * base........................end 2471 * done----txd=====ntxd OK 2472 * --txd=====done++++ntxd-- full 2473 * --txd=====ntxd done-- OK 2474 * ==ntxd done----txd=== OK 2475 * ==done++++ntxd----txd=== full 2476 * ++ntxd txd=====done++ full 2477 */ 2478 if (txd < ntxd) { 2479 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 2480 return ENOBUFS; 2481 } else { 2482 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 2483 return ENOBUFS; 2484 } 2485 return 0; 2486 } 2487 2488 static int 2489 awi_lock(sc) 2490 struct awi_softc *sc; 2491 { 2492 int error = 0; 2493 2494 if (sc->sc_invalid) 2495 return ENXIO; 2496 if (curproc == NULL) { 2497 /* 2498 * XXX 2499 * Though driver ioctl should be called with context, 2500 * KAME ipv6 stack calls ioctl in interrupt for now. 2501 * We simply abort the request if there are other 2502 * ioctl requests in progress. 2503 */ 2504 if (sc->sc_busy) 2505 return EWOULDBLOCK; 2506 sc->sc_busy = 1; 2507 sc->sc_cansleep = 0; 2508 return 0; 2509 } 2510 while (sc->sc_busy) { 2511 sc->sc_sleep_cnt++; 2512 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 2513 sc->sc_sleep_cnt--; 2514 if (error) 2515 return error; 2516 if (sc->sc_invalid) 2517 return ENXIO; 2518 } 2519 sc->sc_busy = 1; 2520 sc->sc_cansleep = 1; 2521 return 0; 2522 } 2523 2524 static void 2525 awi_unlock(sc) 2526 struct awi_softc *sc; 2527 { 2528 sc->sc_busy = 0; 2529 sc->sc_cansleep = 0; 2530 if (sc->sc_sleep_cnt) 2531 wakeup(sc); 2532 } 2533 2534 static int 2535 awi_intr_lock(sc) 2536 struct awi_softc *sc; 2537 { 2538 u_int8_t status; 2539 int i, retry; 2540 2541 status = 1; 2542 for (retry = 0; retry < 10; retry++) { 2543 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 2544 status = awi_read_1(sc, AWI_LOCKOUT_HOST); 2545 if (status == 0) 2546 break; 2547 DELAY(5); 2548 } 2549 if (status != 0) 2550 break; 2551 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 2552 status = awi_read_1(sc, AWI_LOCKOUT_HOST); 2553 if (status == 0) 2554 break; 2555 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 2556 } 2557 if (status != 0) { 2558 printf("%s: failed to lock interrupt\n", 2559 sc->sc_dev.dv_xname); 2560 return ENXIO; 2561 } 2562 return 0; 2563 } 2564 2565 static void 2566 awi_intr_unlock(sc) 2567 struct awi_softc *sc; 2568 { 2569 2570 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 2571 } 2572 2573 static int 2574 awi_cmd_wait(sc) 2575 struct awi_softc *sc; 2576 { 2577 int i, error = 0; 2578 2579 i = 0; 2580 while (sc->sc_cmd_inprog) { 2581 if (sc->sc_invalid) 2582 return ENXIO; 2583 if (sc->sc_cansleep) { 2584 sc->sc_sleep_cnt++; 2585 error = tsleep(sc, PWAIT, "awicmd", 2586 AWI_CMD_TIMEOUT*hz/1000); 2587 sc->sc_sleep_cnt--; 2588 } else { 2589 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 2590 awi_cmd_done(sc); 2591 break; 2592 } 2593 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 2594 error = EWOULDBLOCK; 2595 else 2596 DELAY(10); 2597 } 2598 if (error) 2599 break; 2600 } 2601 return error; 2602 } 2603 2604 #ifdef AWI_DEBUG 2605 static void 2606 awi_dump_pkt(sc, m, rssi) 2607 struct awi_softc *sc; 2608 struct mbuf *m; 2609 u_int8_t rssi; 2610 { 2611 struct ieee80211_frame *wh; 2612 int i, l; 2613 2614 wh = mtod(m, struct ieee80211_frame *); 2615 2616 if (awi_dump_mask != 0 && 2617 ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK)==IEEE80211_FC1_DIR_NODS) && 2618 ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK)==IEEE80211_FC0_TYPE_MGT)) { 2619 if ((AWI_DUMP_MASK(wh->i_fc[0]) & awi_dump_mask) != 0) 2620 return; 2621 } 2622 if (awi_dump_mask < 0 && 2623 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK)==IEEE80211_FC0_TYPE_DATA) 2624 return; 2625 2626 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 2627 case IEEE80211_FC1_DIR_NODS: 2628 printf("rx: NODS %s", ether_sprintf(wh->i_addr2)); 2629 printf("->%s", ether_sprintf(wh->i_addr1)); 2630 printf("(%s)", ether_sprintf(wh->i_addr3)); 2631 break; 2632 case IEEE80211_FC1_DIR_TODS: 2633 printf("rx: TODS %s", ether_sprintf(wh->i_addr2)); 2634 printf("->%s", ether_sprintf(wh->i_addr3)); 2635 printf("(%s)", ether_sprintf(wh->i_addr1)); 2636 break; 2637 case IEEE80211_FC1_DIR_FROMDS: 2638 printf("rx: FRDS %s", ether_sprintf(wh->i_addr3)); 2639 printf("->%s", ether_sprintf(wh->i_addr1)); 2640 printf("(%s)", ether_sprintf(wh->i_addr2)); 2641 break; 2642 case IEEE80211_FC1_DIR_DSTODS: 2643 printf("rx: DSDS %s", ether_sprintf((u_int8_t *)&wh[1])); 2644 printf("->%s", ether_sprintf(wh->i_addr3)); 2645 printf("(%s", ether_sprintf(wh->i_addr2)); 2646 printf("->%s)", ether_sprintf(wh->i_addr1)); 2647 break; 2648 } 2649 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 2650 case IEEE80211_FC0_TYPE_DATA: 2651 printf(" data"); 2652 break; 2653 case IEEE80211_FC0_TYPE_MGT: 2654 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 2655 case IEEE80211_FC0_SUBTYPE_PROBE_REQ: 2656 printf(" probe_req"); 2657 break; 2658 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 2659 printf(" probe_resp"); 2660 break; 2661 case IEEE80211_FC0_SUBTYPE_BEACON: 2662 printf(" beacon"); 2663 break; 2664 case IEEE80211_FC0_SUBTYPE_AUTH: 2665 printf(" auth"); 2666 break; 2667 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ: 2668 printf(" assoc_req"); 2669 break; 2670 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 2671 printf(" assoc_resp"); 2672 break; 2673 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ: 2674 printf(" reassoc_req"); 2675 break; 2676 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 2677 printf(" reassoc_resp"); 2678 break; 2679 case IEEE80211_FC0_SUBTYPE_DEAUTH: 2680 printf(" deauth"); 2681 break; 2682 case IEEE80211_FC0_SUBTYPE_DISASSOC: 2683 printf(" disassoc"); 2684 break; 2685 default: 2686 printf(" mgt#%d", 2687 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK); 2688 break; 2689 } 2690 break; 2691 default: 2692 printf(" type#%d", 2693 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 2694 break; 2695 } 2696 printf(" +%d\n", rssi); 2697 if (awi_dump_len > 0) { 2698 l = m->m_len; 2699 if (l > awi_dump_len + sizeof(*wh)) 2700 l = awi_dump_len + sizeof(*wh); 2701 i = sizeof(*wh); 2702 if (awi_dump_hdr) 2703 i = 0; 2704 for (; i < l; i++) { 2705 if ((i & 1) == 0) 2706 printf(" "); 2707 printf("%02x", mtod(m, u_int8_t *)[i]); 2708 } 2709 printf("\n"); 2710 } 2711 } 2712 #endif 2713
Indexes created Sun Oct 19 16:10:00 GMT 2025