awi.c revision 1.19.2.4
1 /* $NetBSD: awi.c,v 1.19.2.4 2000/07/21 18:55:58 onoe Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Bill Sommerfeld 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 * Driver for AMD 802.11 firmware. 40 * Uses am79c930 chip driver to talk to firmware running on the am79c930. 41 * 42 * More-or-less a generic ethernet-like if driver, with 802.11 gorp added. 43 */ 44 45 /* 46 * todo: 47 * - flush tx queue on resynch. 48 * - clear oactive on "down". 49 * - rewrite copy-into-mbuf code 50 * - mgmt state machine gets stuck retransmitting assoc requests. 51 * - multicast filter. 52 * - fix device reset so it's more likely to work 53 * - show status goo through ifmedia. 54 * 55 * more todo: 56 * - deal with more 802.11 frames. 57 * - send reassoc request 58 * - deal with reassoc response 59 * - send/deal with disassociation 60 * - deal with "full" access points (no room for me). 61 * - power save mode 62 * 63 * later: 64 * - SSID preferences 65 * - need ioctls for poking at the MIBs 66 * - implement ad-hoc mode (including bss creation). 67 * - decide when to do "ad hoc" vs. infrastructure mode (IFF_LINK flags?) 68 * (focus on inf. mode since that will be needed for ietf) 69 * - deal with DH vs. FH versions of the card 70 * - deal with faster cards (2mb/s) 71 * - ?WEP goo (mmm, rc4) (it looks not particularly useful). 72 * - ifmedia revision. 73 * - common 802.11 mibish things. 74 * - common 802.11 media layer. 75 */ 76 77 /* 78 * Driver for AMD 802.11 PCnetMobile firmware. 79 * Uses am79c930 chip driver to talk to firmware running on the am79c930. 80 * 81 * The initial version of the driver was written by 82 * Bill Sommerfeld <sommerfeld (at) netbsd.org>. 83 * Then the driver module completely rewritten to support cards with DS phy 84 * and to support adhoc mode by Atsushi Onoe <onoe (at) netbsd.org> 85 */ 86 87 #include "opt_inet.h" 88 #if defined(__FreeBSD__) && __FreeBSD__ >= 4 89 #define NBPFILTER 1 90 #elif defined(__FreeBSD__) && __FreeBSD__ >= 3 91 #include "bpf.h" 92 #define NBPFILTER NBPF 93 #else 94 #include "bpfilter.h" 95 #endif 96 97 #include <sys/param.h> 98 #include <sys/systm.h> 99 #include <sys/kernel.h> 100 #include <sys/mbuf.h> 101 #include <sys/malloc.h> 102 #include <sys/proc.h> 103 #include <sys/socket.h> 104 #include <sys/sockio.h> 105 #include <sys/errno.h> 106 #include <sys/syslog.h> 107 #if defined(__FreeBSD__) && __FreeBSD__ >= 4 108 #include <sys/bus.h> 109 #else 110 #include <sys/device.h> 111 #endif 112 113 #include <net/if.h> 114 #include <net/if_dl.h> 115 #ifdef __FreeBSD__ 116 #include <net/ethernet.h> 117 #else 118 #include <net/if_ether.h> 119 #endif 120 #include <net/if_media.h> 121 #include <net/if_llc.h> 122 #include <net/if_ieee80211.h> 123 124 #ifdef INET 125 #include <netinet/in.h> 126 #include <netinet/in_systm.h> 127 #include <netinet/in_var.h> 128 #include <netinet/ip.h> 129 #ifdef __NetBSD__ 130 #include <netinet/if_inarp.h> 131 #else 132 #include <netinet/if_ether.h> 133 #endif 134 #endif 135 136 #if NBPFILTER > 0 137 #include <net/bpf.h> 138 #include <net/bpfdesc.h> 139 #endif 140 141 #include <machine/cpu.h> 142 #include <machine/bus.h> 143 #ifdef __NetBSD__ 144 #include <machine/intr.h> 145 #endif 146 #ifdef __FreeBSD__ 147 #include <machine/clock.h> 148 #endif 149 150 #ifdef __NetBSD__ 151 #include <dev/ic/am79c930reg.h> 152 #include <dev/ic/am79c930var.h> 153 #include <dev/ic/awireg.h> 154 #include <dev/ic/awivar.h> 155 #endif 156 #ifdef __FreeBSD__ 157 #include <dev/awi/am79c930reg.h> 158 #include <dev/awi/am79c930var.h> 159 #include <dev/awi/awireg.h> 160 #include <dev/awi/awivar.h> 161 #endif 162 163 static int awi_ioctl __P((struct ifnet *ifp, u_long cmd, caddr_t data)); 164 #ifdef IFM_IEEE80211 165 static int awi_media_rate2opt __P((struct awi_softc *sc, int rate)); 166 static int awi_media_opt2rate __P((struct awi_softc *sc, int opt)); 167 static int awi_media_change __P((struct ifnet *ifp)); 168 static void awi_media_status __P((struct ifnet *ifp, struct ifmediareq *imr)); 169 #endif 170 static void awi_watchdog __P((struct ifnet *ifp)); 171 static void awi_start __P((struct ifnet *ifp)); 172 static void awi_txint __P((struct awi_softc *sc)); 173 static struct mbuf * awi_fix_txhdr __P((struct awi_softc *sc, struct mbuf *m0)); 174 static struct mbuf * awi_fix_rxhdr __P((struct awi_softc *sc, struct mbuf *m0)); 175 static void awi_input __P((struct awi_softc *sc, struct mbuf *m, u_int32_t rxts, u_int8_t rssi)); 176 static void awi_rxint __P((struct awi_softc *sc)); 177 static struct mbuf * awi_devget __P((struct awi_softc *sc, u_int32_t off, u_int16_t len)); 178 static int awi_init_hw __P((struct awi_softc *sc)); 179 static int awi_init_mibs __P((struct awi_softc *sc)); 180 static int awi_init_txrx __P((struct awi_softc *sc)); 181 static void awi_stop_txrx __P((struct awi_softc *sc)); 182 static int awi_start_scan __P((struct awi_softc *sc)); 183 static int awi_next_scan __P((struct awi_softc *sc)); 184 static void awi_stop_scan __P((struct awi_softc *sc)); 185 static void awi_recv_beacon __P((struct awi_softc *sc, struct mbuf *m0, u_int32_t rxts, u_int8_t rssi)); 186 static int awi_set_ss __P((struct awi_softc *sc)); 187 static void awi_try_sync __P((struct awi_softc *sc)); 188 static void awi_sync_done __P((struct awi_softc *sc)); 189 static void awi_send_deauth __P((struct awi_softc *sc)); 190 static void awi_send_auth __P((struct awi_softc *sc, int seq)); 191 static void awi_recv_auth __P((struct awi_softc *sc, struct mbuf *m0)); 192 static void awi_send_asreq __P((struct awi_softc *sc, int reassoc)); 193 static void awi_recv_asresp __P((struct awi_softc *sc, struct mbuf *m0)); 194 static int awi_mib __P((struct awi_softc *sc, u_int8_t cmd, u_int8_t mib)); 195 static int awi_cmd_scan __P((struct awi_softc *sc)); 196 static int awi_cmd __P((struct awi_softc *sc, u_int8_t cmd)); 197 static void awi_cmd_done __P((struct awi_softc *sc)); 198 static int awi_next_txd __P((struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t*ntxdp)); 199 static int awi_lock __P((struct awi_softc *sc)); 200 static void awi_unlock __P((struct awi_softc *sc)); 201 static int awi_intr_lock __P((struct awi_softc *sc)); 202 static void awi_intr_unlock __P((struct awi_softc *sc)); 203 static int awi_cmd_wait __P((struct awi_softc *sc)); 204 static void awi_print_essid __P((u_int8_t *essid)); 205 206 #ifdef AWI_DEBUG 207 static void awi_dump_pkt __P((struct awi_softc *sc, struct mbuf *m, int rssi)); 208 int awi_verbose = 0; 209 int awi_dump = 0; 210 #define AWI_DUMP_MASK(fc0) (1 << (((fc0) & IEEE80211_FC0_SUBTYPE_MASK) >> 4)) 211 int awi_dump_mask = AWI_DUMP_MASK(IEEE80211_FC0_SUBTYPE_BEACON); 212 int awi_dump_hdr = 0; 213 int awi_dump_len = 28; 214 #endif 215 216 #if NBPFILTER > 0 217 #define AWI_BPF_NORM 0 218 #define AWI_BPF_RAW 1 219 #ifdef __FreeBSD__ 220 #define AWI_BPF_MTAP(sc, m, raw) do { \ 221 if ((sc)->sc_ifp->if_bpf && (sc)->sc_rawbpf == (raw)) \ 222 bpf_mtap((sc)->sc_ifp, (m)); \ 223 } while (0); 224 #else 225 #define AWI_BPF_MTAP(sc, m, raw) do { \ 226 if ((sc)->sc_ifp->if_bpf && (sc)->sc_rawbpf == (raw)) \ 227 bpf_mtap((sc)->sc_ifp->if_bpf, (m)); \ 228 } while (0); 229 #endif 230 #else 231 #define AWI_BPF_MTAP(sc, m, raw) 232 #endif 233 234 #ifndef llc_snap 235 #define llc_snap llc_un.type_snap 236 #endif 237 238 #ifdef __FreeBSD__ 239 #if __FreeBSD__ >= 4 240 devclass_t awi_devclass; 241 #endif 242 243 /* NetBSD compatible functions */ 244 static char * ether_sprintf __P((u_int8_t *)); 245 246 static char * 247 ether_sprintf(enaddr) 248 u_int8_t *enaddr; 249 { 250 static char strbuf[18]; 251 252 sprintf(strbuf, "%6D", enaddr, ":"); 253 return strbuf; 254 } 255 #endif 256 257 int 258 awi_attach(sc) 259 struct awi_softc *sc; 260 { 261 struct ifnet *ifp = sc->sc_ifp; 262 int s; 263 int error; 264 #ifdef IFM_IEEE80211 265 int i; 266 u_int8_t *phy_rates; 267 int mword; 268 struct ifmediareq imr; 269 #endif 270 271 s = splnet(); 272 /* 273 * Even if we can sleep in initialization state, 274 * all other processes (e.g. ifconfig) have to wait for 275 * completion of attaching interface. 276 */ 277 sc->sc_busy = 1; 278 sc->sc_status = AWI_ST_INIT; 279 TAILQ_INIT(&sc->sc_scan); 280 error = awi_init_hw(sc); 281 if (error) { 282 sc->sc_invalid = 1; 283 splx(s); 284 return error; 285 } 286 error = awi_init_mibs(sc); 287 splx(s); 288 if (error) { 289 sc->sc_invalid = 1; 290 return error; 291 } 292 293 ifp->if_softc = sc; 294 ifp->if_start = awi_start; 295 ifp->if_ioctl = awi_ioctl; 296 ifp->if_watchdog = awi_watchdog; 297 ifp->if_mtu = ETHERMTU; 298 ifp->if_hdrlen = sizeof(struct ieee80211_frame) + 299 sizeof(struct ether_header); 300 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 301 #ifdef IFF_NOTRAILERS 302 ifp->if_flags |= IFF_NOTRAILERS; 303 #endif 304 #ifdef __NetBSD__ 305 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 306 #endif 307 #ifdef __FreeBSD__ 308 ifp->if_output = ether_output; 309 ifp->if_snd.ifq_maxlen = ifqmaxlen; 310 memcpy(sc->sc_ec.ac_enaddr, sc->sc_mib_addr.aMAC_Address, 311 ETHER_ADDR_LEN); 312 #endif 313 314 printf("%s: IEEE802.11 %s %dMbps (firmware %s)\n", 315 sc->sc_dev.dv_xname, 316 sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH ? "FH" : "DS", 317 sc->sc_tx_rate / 10, sc->sc_banner); 318 printf("%s: address %s\n", 319 sc->sc_dev.dv_xname, ether_sprintf(sc->sc_mib_addr.aMAC_Address)); 320 if_attach(ifp); 321 #ifdef __FreeBSD__ 322 ether_ifattach(ifp); 323 #if NBPFILTER > 0 324 bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header)); 325 #endif 326 #else 327 ether_ifattach(ifp, sc->sc_mib_addr.aMAC_Address); 328 #if NBPFILTER > 0 329 bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); 330 #endif 331 #endif 332 333 #ifdef IFM_IEEE80211 334 ifmedia_init(&sc->sc_media, 0, awi_media_change, awi_media_status); 335 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 336 for (i = 0; i < phy_rates[1]; i++) { 337 mword = awi_media_rate2opt(sc, AWI_80211_RATE(phy_rates[2 + i])); 338 if (mword == 0) 339 continue; 340 mword |= IFM_IEEE80211; 341 ifmedia_add(&sc->sc_media, mword, 0, NULL); 342 ifmedia_add(&sc->sc_media, 343 mword | IFM_IEEE80211_ADHOC, 0, NULL); 344 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 345 ifmedia_add(&sc->sc_media, 346 mword | IFM_IEEE80211_ADHOC | IFM_FLAG0, 0, NULL); 347 } 348 awi_media_status(ifp, &imr); 349 ifmedia_set(&sc->sc_media, imr.ifm_active); 350 #endif 351 352 /* ready to accept ioctl */ 353 awi_unlock(sc); 354 355 /* Attach is successful. */ 356 sc->sc_attached = 1; 357 return 0; 358 } 359 360 #ifdef __NetBSD__ 361 int 362 awi_detach(sc) 363 struct awi_softc *sc; 364 { 365 struct ifnet *ifp = sc->sc_ifp; 366 int s; 367 368 /* Succeed if there is no work to do. */ 369 if (!sc->sc_attached) 370 return (0); 371 372 s = splnet(); 373 sc->sc_invalid = 1; 374 awi_stop(sc); 375 while (sc->sc_sleep_cnt > 0) { 376 wakeup(sc); 377 (void)tsleep(sc, PWAIT, "awidet", 1); 378 } 379 if (sc->sc_wep_ctx != NULL) 380 free(sc->sc_wep_ctx, M_DEVBUF); 381 #if NBPFILTER > 0 382 bpfdetach(ifp); 383 #endif 384 #ifdef IFM_IEEE80211 385 ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY); 386 #endif 387 ether_ifdetach(ifp); 388 if_detach(ifp); 389 if (sc->sc_enabled) { 390 if (sc->sc_disable) 391 (*sc->sc_disable)(sc); 392 sc->sc_enabled = 0; 393 } 394 splx(s); 395 return 0; 396 } 397 398 int 399 awi_activate(self, act) 400 struct device *self; 401 enum devact act; 402 { 403 struct awi_softc *sc = (struct awi_softc *)self; 404 int s, error = 0; 405 406 s = splnet(); 407 switch (act) { 408 case DVACT_ACTIVATE: 409 error = EOPNOTSUPP; 410 break; 411 412 case DVACT_DEACTIVATE: 413 sc->sc_invalid = 1; 414 if (sc->sc_ifp) 415 if_deactivate(sc->sc_ifp); 416 break; 417 } 418 splx(s); 419 420 return error; 421 } 422 423 void 424 awi_power(sc, why) 425 struct awi_softc *sc; 426 int why; 427 { 428 int s; 429 int ocansleep; 430 431 if (!sc->sc_enabled) 432 return; 433 434 s = splnet(); 435 ocansleep = sc->sc_cansleep; 436 sc->sc_cansleep = 0; 437 #ifdef needtobefixed /*ONOE*/ 438 if (why == PWR_RESUME) { 439 sc->sc_enabled = 0; 440 awi_init(sc); 441 (void)awi_intr(sc); 442 } else { 443 awi_stop(sc); 444 if (sc->sc_disable) 445 (*sc->sc_disable)(sc); 446 } 447 #endif 448 sc->sc_cansleep = ocansleep; 449 splx(s); 450 } 451 #endif /* __NetBSD__ */ 452 453 static int 454 awi_ioctl(ifp, cmd, data) 455 struct ifnet *ifp; 456 u_long cmd; 457 caddr_t data; 458 { 459 struct awi_softc *sc = ifp->if_softc; 460 struct ifreq *ifr = (struct ifreq *)data; 461 struct ifaddr *ifa = (struct ifaddr *)data; 462 int s, error; 463 struct ieee80211_nwid nwid; 464 u_int8_t *p; 465 466 s = splnet(); 467 468 /* serialize ioctl */ 469 error = awi_lock(sc); 470 if (error) 471 goto cantlock; 472 switch (cmd) { 473 case SIOCSIFADDR: 474 ifp->if_flags |= IFF_UP; 475 switch (ifa->ifa_addr->sa_family) { 476 #ifdef INET 477 case AF_INET: 478 arp_ifinit((void *)ifp, ifa); 479 break; 480 #endif 481 } 482 /* FALLTHROUGH */ 483 case SIOCSIFFLAGS: 484 sc->sc_format_llc = !(ifp->if_flags & IFF_LINK0); 485 if (!(ifp->if_flags & IFF_UP)) { 486 if (sc->sc_enabled) { 487 awi_stop(sc); 488 if (sc->sc_disable) 489 (*sc->sc_disable)(sc); 490 sc->sc_enabled = 0; 491 } 492 break; 493 } 494 error = awi_init(sc); 495 break; 496 497 case SIOCADDMULTI: 498 case SIOCDELMULTI: 499 #ifdef __FreeBSD__ 500 error = ENETRESET; /*XXX*/ 501 #else 502 error = (cmd == SIOCADDMULTI) ? 503 ether_addmulti(ifr, &sc->sc_ec) : 504 ether_delmulti(ifr, &sc->sc_ec); 505 #endif 506 /* 507 * Do not rescan BSS. Rather, just reset multicast filter. 508 */ 509 if (error == ENETRESET) { 510 if (sc->sc_enabled) 511 error = awi_init(sc); 512 else 513 error = 0; 514 } 515 break; 516 case SIOCSIFMTU: 517 if (ifr->ifr_mtu > ETHERMTU) 518 error = EINVAL; 519 else 520 ifp->if_mtu = ifr->ifr_mtu; 521 break; 522 case SIOCS80211NWID: 523 error = copyin(ifr->ifr_data, &nwid, sizeof(nwid)); 524 if (error) 525 break; 526 if (nwid.i_len > IEEE80211_NWID_LEN) { 527 error = EINVAL; 528 break; 529 } 530 if (sc->sc_mib_mac.aDesired_ESS_ID[1] == nwid.i_len && 531 memcmp(&sc->sc_mib_mac.aDesired_ESS_ID[2], nwid.i_nwid, 532 nwid.i_len) == 0) 533 break; 534 memset(sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 535 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 536 sc->sc_mib_mac.aDesired_ESS_ID[1] = nwid.i_len; 537 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], nwid.i_nwid, 538 nwid.i_len); 539 if (sc->sc_enabled) { 540 awi_stop(sc); 541 error = awi_init(sc); 542 } 543 break; 544 case SIOCG80211NWID: 545 if (ifp->if_flags & IFF_RUNNING) 546 p = sc->sc_bss.essid; 547 else 548 p = sc->sc_mib_mac.aDesired_ESS_ID; 549 error = copyout(p + 1, ifr->ifr_data, 1 + IEEE80211_NWID_LEN); 550 break; 551 case SIOCS80211NWKEY: 552 error = awi_wep_setnwkey(sc, (struct ieee80211_nwkey *)data); 553 break; 554 case SIOCG80211NWKEY: 555 error = awi_wep_getnwkey(sc, (struct ieee80211_nwkey *)data); 556 break; 557 #ifdef IFM_IEEE80211 558 case SIOCSIFMEDIA: 559 case SIOCGIFMEDIA: 560 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 561 break; 562 #endif 563 default: 564 error = awi_wicfg(ifp, cmd, data); 565 break; 566 } 567 awi_unlock(sc); 568 cantlock: 569 splx(s); 570 return error; 571 } 572 573 #ifdef IFM_IEEE80211 574 static int 575 awi_media_rate2opt(sc, rate) 576 struct awi_softc *sc; 577 int rate; 578 { 579 int mword; 580 581 mword = 0; 582 switch (rate) { 583 case 10: 584 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 585 mword = IFM_IEEE80211_FH1; 586 else 587 mword = IFM_IEEE80211_DS1; 588 break; 589 case 20: 590 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 591 mword = IFM_IEEE80211_FH2; 592 else 593 mword = IFM_IEEE80211_DS2; 594 break; 595 case 55: 596 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 597 mword = IFM_IEEE80211_DS5; 598 break; 599 case 110: 600 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 601 mword = IFM_IEEE80211_DS11; 602 break; 603 } 604 return mword; 605 } 606 607 static int 608 awi_media_opt2rate(sc, opt) 609 struct awi_softc *sc; 610 int opt; 611 { 612 int rate; 613 614 rate = 0; 615 switch (IFM_SUBTYPE(opt)) { 616 case IFM_IEEE80211_FH1: 617 case IFM_IEEE80211_FH2: 618 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 619 return 0; 620 break; 621 case IFM_IEEE80211_DS1: 622 case IFM_IEEE80211_DS2: 623 case IFM_IEEE80211_DS5: 624 case IFM_IEEE80211_DS11: 625 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_DS) 626 return 0; 627 break; 628 } 629 630 switch (IFM_SUBTYPE(opt)) { 631 case IFM_IEEE80211_FH1: 632 case IFM_IEEE80211_DS1: 633 rate = 10; 634 break; 635 case IFM_IEEE80211_FH2: 636 case IFM_IEEE80211_DS2: 637 rate = 20; 638 break; 639 case IFM_IEEE80211_DS5: 640 rate = 55; 641 break; 642 case IFM_IEEE80211_DS11: 643 rate = 110; 644 break; 645 } 646 return rate; 647 } 648 649 /* 650 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 651 */ 652 static int 653 awi_media_change(ifp) 654 struct ifnet *ifp; 655 { 656 struct awi_softc *sc = ifp->if_softc; 657 struct ifmedia_entry *ime; 658 u_int8_t *phy_rates; 659 int i, rate, error; 660 661 error = 0; 662 ime = sc->sc_media.ifm_cur; 663 rate = awi_media_opt2rate(sc, ime->ifm_media); 664 if (rate == 0) 665 return EINVAL; 666 if (rate != sc->sc_tx_rate) { 667 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 668 for (i = 0; i < phy_rates[1]; i++) { 669 if (rate == AWI_80211_RATE(phy_rates[2 + i])) 670 break; 671 } 672 if (i == phy_rates[1]) 673 return EINVAL; 674 } 675 if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 676 sc->sc_mib_local.Network_Mode = 0; 677 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 678 sc->sc_no_bssid = 0; 679 else 680 sc->sc_no_bssid = (ime->ifm_media & IFM_FLAG0) ? 1 : 0; 681 } else { 682 sc->sc_mib_local.Network_Mode = 1; 683 } 684 if (sc->sc_enabled) { 685 awi_stop(sc); 686 error = awi_init(sc); 687 } 688 return error; 689 } 690 691 static void 692 awi_media_status(ifp, imr) 693 struct ifnet *ifp; 694 struct ifmediareq *imr; 695 { 696 struct awi_softc *sc = ifp->if_softc; 697 698 imr->ifm_status = IFM_AVALID; 699 if (ifp->if_flags & IFF_RUNNING) 700 imr->ifm_status |= IFM_ACTIVE; 701 imr->ifm_active = IFM_IEEE80211; 702 imr->ifm_active |= awi_media_rate2opt(sc, sc->sc_tx_rate); 703 if (sc->sc_mib_local.Network_Mode == 0) { 704 imr->ifm_active |= IFM_IEEE80211_ADHOC; 705 if (sc->sc_no_bssid) 706 imr->ifm_active |= IFM_FLAG0; 707 } 708 } 709 #endif /* IFM_IEEE80211 */ 710 711 int 712 awi_intr(arg) 713 void *arg; 714 { 715 struct awi_softc *sc = arg; 716 u_int16_t status; 717 int error, handled = 0, ocansleep; 718 719 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) 720 return 0; 721 722 am79c930_gcr_setbits(&sc->sc_chip, 723 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 724 awi_write_1(sc, AWI_DIS_PWRDN, 1); 725 ocansleep = sc->sc_cansleep; 726 sc->sc_cansleep = 0; 727 728 for (;;) { 729 error = awi_intr_lock(sc); 730 if (error) 731 break; 732 status = awi_read_1(sc, AWI_INTSTAT); 733 awi_write_1(sc, AWI_INTSTAT, 0); 734 awi_write_1(sc, AWI_INTSTAT, 0); 735 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 736 awi_write_1(sc, AWI_INTSTAT2, 0); 737 DELAY(10); 738 awi_intr_unlock(sc); 739 if (!sc->sc_cmd_inprog) 740 status &= ~AWI_INT_CMD; /* make sure */ 741 if (status == 0) 742 break; 743 handled = 1; 744 if (status & AWI_INT_RX) 745 awi_rxint(sc); 746 if (status & AWI_INT_TX) 747 awi_txint(sc); 748 if (status & AWI_INT_CMD) 749 awi_cmd_done(sc); 750 if (status & AWI_INT_SCAN_CMPLT) { 751 if (sc->sc_status == AWI_ST_SCAN && 752 sc->sc_mgt_timer > 0) 753 (void)awi_next_scan(sc); 754 } 755 } 756 sc->sc_cansleep = ocansleep; 757 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 758 awi_write_1(sc, AWI_DIS_PWRDN, 0); 759 return handled; 760 } 761 762 int 763 awi_init(sc) 764 struct awi_softc *sc; 765 { 766 int error, ostatus; 767 int n; 768 struct ifnet *ifp = sc->sc_ifp; 769 #ifdef __FreeBSD__ 770 struct ifmultiaddr *ifma; 771 #else 772 struct ether_multi *enm; 773 struct ether_multistep step; 774 #endif 775 776 /* reinitialize muticast filter */ 777 n = 0; 778 ifp->if_flags |= IFF_ALLMULTI; 779 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 780 if (ifp->if_flags & IFF_PROMISC) { 781 sc->sc_mib_mac.aPromiscuous_Enable = 1; 782 goto set_mib; 783 } 784 sc->sc_mib_mac.aPromiscuous_Enable = 0; 785 #ifdef __FreeBSD__ 786 if (ifp->if_amcount != 0) 787 goto set_mib; 788 for (ifma = LIST_FIRST(&ifp->if_multiaddrs); ifma != NULL; 789 ifma = LIST_NEXT(ifma, ifma_link)) { 790 if (ifma->ifma_addr->sa_family != AF_LINK) 791 continue; 792 if (n == AWI_GROUP_ADDR_SIZE) 793 goto set_mib; 794 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], 795 LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 796 ETHER_ADDR_LEN); 797 n++; 798 } 799 #else 800 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 801 while (enm != NULL) { 802 if (n == AWI_GROUP_ADDR_SIZE || 803 memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN) 804 != 0) 805 goto set_mib; 806 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], enm->enm_addrlo, 807 ETHER_ADDR_LEN); 808 n++; 809 ETHER_NEXT_MULTI(step, enm); 810 } 811 #endif 812 for (; n < AWI_GROUP_ADDR_SIZE; n++) 813 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, ETHER_ADDR_LEN); 814 ifp->if_flags &= ~IFF_ALLMULTI; 815 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 816 817 set_mib: 818 #ifdef notdef /* allow non-encrypted frame for receiving. */ 819 sc->sc_mib_mgt.Wep_Required = sc->sc_wep_algo != NULL ? 1 : 0; 820 #endif 821 if (!sc->sc_enabled) { 822 sc->sc_enabled = 1; 823 if (sc->sc_enable) 824 (*sc->sc_enable)(sc); 825 sc->sc_status = AWI_ST_INIT; 826 error = awi_init_hw(sc); 827 if (error) 828 return error; 829 } 830 ostatus = sc->sc_status; 831 sc->sc_status = AWI_ST_INIT; 832 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL)) != 0 || 833 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR)) != 0 || 834 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC)) != 0 || 835 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT)) != 0 || 836 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY)) != 0) { 837 awi_stop(sc); 838 return error; 839 } 840 if (ifp->if_flags & IFF_RUNNING) 841 sc->sc_status = AWI_ST_RUNNING; 842 else { 843 if (ostatus == AWI_ST_INIT) { 844 error = awi_init_txrx(sc); 845 if (error) 846 return error; 847 } 848 error = awi_start_scan(sc); 849 } 850 return error; 851 } 852 853 void 854 awi_stop(sc) 855 struct awi_softc *sc; 856 { 857 struct ifnet *ifp = sc->sc_ifp; 858 struct awi_bss *bp; 859 struct mbuf *m; 860 861 sc->sc_status = AWI_ST_INIT; 862 if (!sc->sc_invalid) { 863 (void)awi_cmd_wait(sc); 864 if (sc->sc_mib_local.Network_Mode && 865 sc->sc_status > AWI_ST_AUTH) 866 awi_send_deauth(sc); 867 awi_stop_txrx(sc); 868 } 869 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 870 ifp->if_timer = 0; 871 sc->sc_tx_timer = sc->sc_rx_timer = sc->sc_mgt_timer = 0; 872 for (;;) { 873 IF_DEQUEUE(&sc->sc_mgtq, m); 874 if (m == NULL) 875 break; 876 m_freem(m); 877 } 878 for (;;) { 879 IF_DEQUEUE(&ifp->if_snd, m); 880 if (m == NULL) 881 break; 882 m_freem(m); 883 } 884 while ((bp = TAILQ_FIRST(&sc->sc_scan)) != NULL) { 885 TAILQ_REMOVE(&sc->sc_scan, bp, list); 886 free(bp, M_DEVBUF); 887 } 888 } 889 890 static void 891 awi_watchdog(ifp) 892 struct ifnet *ifp; 893 { 894 struct awi_softc *sc = ifp->if_softc; 895 int ocansleep; 896 897 if (sc->sc_invalid) { 898 ifp->if_timer = 0; 899 return; 900 } 901 902 ocansleep = sc->sc_cansleep; 903 sc->sc_cansleep = 0; 904 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 905 printf("%s: transmit timeout\n", sc->sc_dev.dv_xname); 906 awi_txint(sc); 907 } 908 if (sc->sc_rx_timer && --sc->sc_rx_timer == 0) { 909 if (ifp->if_flags & IFF_DEBUG) { 910 printf("%s: no recent beacons from %s; rescanning\n", 911 sc->sc_dev.dv_xname, 912 ether_sprintf(sc->sc_bss.bssid)); 913 } 914 ifp->if_flags &= ~IFF_RUNNING; 915 awi_start_scan(sc); 916 } 917 if (sc->sc_mgt_timer && --sc->sc_mgt_timer == 0) { 918 switch (sc->sc_status) { 919 case AWI_ST_SCAN: 920 awi_stop_scan(sc); 921 break; 922 case AWI_ST_AUTH: 923 case AWI_ST_ASSOC: 924 /* restart scan */ 925 awi_start_scan(sc); 926 break; 927 default: 928 break; 929 } 930 } 931 932 if (sc->sc_tx_timer == 0 && sc->sc_rx_timer == 0 && 933 sc->sc_mgt_timer == 0) 934 ifp->if_timer = 0; 935 else 936 ifp->if_timer = 1; 937 sc->sc_cansleep = ocansleep; 938 } 939 940 static void 941 awi_start(ifp) 942 struct ifnet *ifp; 943 { 944 struct awi_softc *sc = ifp->if_softc; 945 struct mbuf *m0, *m; 946 u_int32_t txd, frame, ntxd; 947 u_int8_t rate; 948 int len, sent = 0; 949 950 for (;;) { 951 txd = sc->sc_txnext; 952 IF_DEQUEUE(&sc->sc_mgtq, m0); 953 if (m0 != NULL) { 954 if (awi_next_txd(sc, m0->m_pkthdr.len, &frame, &ntxd)) { 955 IF_PREPEND(&sc->sc_mgtq, m0); 956 ifp->if_flags |= IFF_OACTIVE; 957 break; 958 } 959 } else { 960 if (!(ifp->if_flags & IFF_RUNNING)) 961 break; 962 IF_DEQUEUE(&ifp->if_snd, m0); 963 if (m0 == NULL) 964 break; 965 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 966 if (sc->sc_format_llc) 967 len += sizeof(struct llc) - 968 sizeof(struct ether_header); 969 if (sc->sc_wep_algo != NULL) 970 len += IEEE80211_WEP_IVLEN + 971 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 972 if (awi_next_txd(sc, len, &frame, &ntxd)) { 973 IF_PREPEND(&ifp->if_snd, m0); 974 ifp->if_flags |= IFF_OACTIVE; 975 break; 976 } 977 AWI_BPF_MTAP(sc, m0, AWI_BPF_NORM); 978 m0 = awi_fix_txhdr(sc, m0); 979 if (sc->sc_wep_algo != NULL && m0 != NULL) 980 m0 = awi_wep_encrypt(sc, m0, 1); 981 if (m0 == NULL) { 982 ifp->if_oerrors++; 983 continue; 984 } 985 ifp->if_opackets++; 986 } 987 #ifdef AWI_DEBUG 988 if (awi_dump) 989 awi_dump_pkt(sc, m0, -1); 990 #endif 991 AWI_BPF_MTAP(sc, m0, AWI_BPF_RAW); 992 len = 0; 993 for (m = m0; m != NULL; m = m->m_next) { 994 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 995 m->m_len); 996 len += m->m_len; 997 } 998 m_freem(m0); 999 rate = sc->sc_tx_rate; /*XXX*/ 1000 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 1001 awi_write_4(sc, txd + AWI_TXD_START, frame); 1002 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 1003 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 1004 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 1005 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 1006 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 1007 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 1008 sc->sc_txnext = ntxd; 1009 sent++; 1010 } 1011 if (sent) { 1012 if (sc->sc_tx_timer == 0) 1013 sc->sc_tx_timer = 5; 1014 ifp->if_timer = 1; 1015 #ifdef AWI_DEBUG 1016 if (awi_verbose) 1017 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); 1018 #endif 1019 } 1020 } 1021 1022 static void 1023 awi_txint(sc) 1024 struct awi_softc *sc; 1025 { 1026 struct ifnet *ifp = sc->sc_ifp; 1027 u_int8_t flags; 1028 1029 while (sc->sc_txdone != sc->sc_txnext) { 1030 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1031 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1032 break; 1033 if (flags & AWI_TXD_ST_ERROR) 1034 ifp->if_oerrors++; 1035 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1036 0x7fff; 1037 } 1038 sc->sc_tx_timer = 0; 1039 ifp->if_flags &= ~IFF_OACTIVE; 1040 #ifdef AWI_DEBUG 1041 if (awi_verbose) 1042 printf("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1043 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend); 1044 #endif 1045 awi_start(ifp); 1046 } 1047 1048 static struct mbuf * 1049 awi_fix_txhdr(sc, m0) 1050 struct awi_softc *sc; 1051 struct mbuf *m0; 1052 { 1053 struct ether_header eh; 1054 struct ieee80211_frame *wh; 1055 struct llc *llc; 1056 1057 if (m0->m_len < sizeof(eh)) { 1058 m0 = m_pullup(m0, sizeof(eh)); 1059 if (m0 == NULL) 1060 return NULL; 1061 } 1062 memcpy(&eh, mtod(m0, caddr_t), sizeof(eh)); 1063 if (sc->sc_format_llc) { 1064 m_adj(m0, sizeof(struct ether_header) - sizeof(struct llc)); 1065 llc = mtod(m0, struct llc *); 1066 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 1067 llc->llc_control = LLC_UI; 1068 llc->llc_snap.org_code[0] = llc->llc_snap.org_code[1] = 1069 llc->llc_snap.org_code[2] = 0; 1070 llc->llc_snap.ether_type = eh.ether_type; 1071 } 1072 M_PREPEND(m0, sizeof(struct ieee80211_frame), M_DONTWAIT); 1073 if (m0 == NULL) 1074 return NULL; 1075 wh = mtod(m0, struct ieee80211_frame *); 1076 1077 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 1078 LE_WRITE_2(wh->i_dur, 0); 1079 LE_WRITE_2(wh->i_seq, 0); 1080 if (sc->sc_mib_local.Network_Mode) { 1081 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 1082 memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN); 1083 memcpy(wh->i_addr2, eh.ether_shost, ETHER_ADDR_LEN); 1084 memcpy(wh->i_addr3, eh.ether_dhost, ETHER_ADDR_LEN); 1085 } else { 1086 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1087 memcpy(wh->i_addr1, eh.ether_dhost, ETHER_ADDR_LEN); 1088 memcpy(wh->i_addr2, eh.ether_shost, ETHER_ADDR_LEN); 1089 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 1090 } 1091 return m0; 1092 } 1093 1094 static struct mbuf * 1095 awi_fix_rxhdr(sc, m0) 1096 struct awi_softc *sc; 1097 struct mbuf *m0; 1098 { 1099 struct ieee80211_frame wh; 1100 struct ether_header *eh; 1101 struct llc *llc; 1102 1103 if (m0->m_len < sizeof(wh)) { 1104 m_freem(m0); 1105 return NULL; 1106 } 1107 llc = (struct llc *)(mtod(m0, caddr_t) + sizeof(wh)); 1108 if (llc->llc_dsap == LLC_SNAP_LSAP && 1109 llc->llc_ssap == LLC_SNAP_LSAP && 1110 llc->llc_control == LLC_UI && 1111 llc->llc_snap.org_code[0] == 0 && 1112 llc->llc_snap.org_code[1] == 0 && 1113 llc->llc_snap.org_code[2] == 0) { 1114 memcpy(&wh, mtod(m0, caddr_t), sizeof(wh)); 1115 m_adj(m0, sizeof(wh) + sizeof(*llc) - sizeof(*eh)); 1116 eh = mtod(m0, struct ether_header *); 1117 switch (wh.i_fc[1] & IEEE80211_FC1_DIR_MASK) { 1118 case IEEE80211_FC1_DIR_NODS: 1119 memcpy(eh->ether_dhost, wh.i_addr1, ETHER_ADDR_LEN); 1120 memcpy(eh->ether_shost, wh.i_addr2, ETHER_ADDR_LEN); 1121 break; 1122 case IEEE80211_FC1_DIR_TODS: 1123 memcpy(eh->ether_dhost, wh.i_addr3, ETHER_ADDR_LEN); 1124 memcpy(eh->ether_shost, wh.i_addr2, ETHER_ADDR_LEN); 1125 break; 1126 case IEEE80211_FC1_DIR_FROMDS: 1127 memcpy(eh->ether_dhost, wh.i_addr1, ETHER_ADDR_LEN); 1128 memcpy(eh->ether_shost, wh.i_addr3, ETHER_ADDR_LEN); 1129 break; 1130 case IEEE80211_FC1_DIR_DSTODS: 1131 m_freem(m0); 1132 return NULL; 1133 } 1134 } else { 1135 /* assuming ethernet encapsulation, just strip 802.11 header */ 1136 m_adj(m0, sizeof(wh)); 1137 } 1138 if (ALIGN(mtod(m0, caddr_t) + sizeof(struct ether_header)) != 1139 (u_int)(mtod(m0, caddr_t) + sizeof(struct ether_header))) { 1140 /* XXX: we loose to estimate the type of encapsulation */ 1141 struct mbuf *n, *n0, **np; 1142 caddr_t newdata; 1143 int off; 1144 1145 n0 = NULL; 1146 np = &n0; 1147 off = 0; 1148 while (m0->m_pkthdr.len > off) { 1149 if (n0 == NULL) { 1150 MGETHDR(n, M_DONTWAIT, MT_DATA); 1151 if (n == NULL) { 1152 m_freem(m0); 1153 return NULL; 1154 } 1155 M_COPY_PKTHDR(n, m0); 1156 n->m_len = MHLEN; 1157 } else { 1158 MGET(n, M_DONTWAIT, MT_DATA); 1159 if (n == NULL) { 1160 m_freem(m0); 1161 m_freem(n0); 1162 return NULL; 1163 } 1164 n->m_len = MLEN; 1165 } 1166 if (m0->m_pkthdr.len - off >= MINCLSIZE) { 1167 MCLGET(n, M_DONTWAIT); 1168 if (n->m_flags & M_EXT) 1169 n->m_len = n->m_ext.ext_size; 1170 } 1171 if (n0 == NULL) { 1172 newdata = (caddr_t) 1173 ALIGN(n->m_data 1174 + sizeof(struct ether_header)) 1175 - sizeof(struct ether_header); 1176 n->m_len -= newdata - n->m_data; 1177 n->m_data = newdata; 1178 } 1179 if (n->m_len > m0->m_pkthdr.len - off) 1180 n->m_len = m0->m_pkthdr.len - off; 1181 m_copydata(m0, off, n->m_len, mtod(n, caddr_t)); 1182 off += n->m_len; 1183 *np = n; 1184 np = &n->m_next; 1185 } 1186 m_freem(m0); 1187 m0 = n0; 1188 } 1189 return m0; 1190 } 1191 1192 static void 1193 awi_input(sc, m, rxts, rssi) 1194 struct awi_softc *sc; 1195 struct mbuf *m; 1196 u_int32_t rxts; 1197 u_int8_t rssi; 1198 { 1199 struct ifnet *ifp = sc->sc_ifp; 1200 struct ieee80211_frame *wh; 1201 #ifndef __NetBSD__ 1202 struct ether_header *eh; 1203 #endif 1204 1205 /* trim CRC here for WEP can find its own CRC at the end of packet. */ 1206 m_adj(m, -ETHER_CRC_LEN); 1207 AWI_BPF_MTAP(sc, m, AWI_BPF_RAW); 1208 wh = mtod(m, struct ieee80211_frame *); 1209 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) != 1210 IEEE80211_FC0_VERSION_0) { 1211 printf("%s; receive packet with wrong version: %x\n", 1212 sc->sc_dev.dv_xname, wh->i_fc[0]); 1213 m_freem(m); 1214 ifp->if_ierrors++; 1215 return; 1216 } 1217 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1218 m = awi_wep_encrypt(sc, m, 0); 1219 if (m == NULL) { 1220 ifp->if_ierrors++; 1221 return; 1222 } 1223 wh = mtod(m, struct ieee80211_frame *); 1224 } 1225 #ifdef AWI_DEBUG 1226 if (awi_dump) 1227 awi_dump_pkt(sc, m, rssi); 1228 #endif 1229 1230 if ((sc->sc_mib_local.Network_Mode || !sc->sc_no_bssid) && 1231 sc->sc_status == AWI_ST_RUNNING) { 1232 if (memcmp(wh->i_addr2, sc->sc_bss.bssid, ETHER_ADDR_LEN) == 0) { 1233 sc->sc_rx_timer = 10; 1234 sc->sc_bss.rssi = rssi; 1235 } 1236 } 1237 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 1238 case IEEE80211_FC0_TYPE_DATA: 1239 if (sc->sc_mib_local.Network_Mode) { 1240 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1241 IEEE80211_FC1_DIR_FROMDS) { 1242 m_freem(m); 1243 return; 1244 } 1245 } else { 1246 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1247 IEEE80211_FC1_DIR_NODS) { 1248 m_freem(m); 1249 return; 1250 } 1251 } 1252 m = awi_fix_rxhdr(sc, m); 1253 if (m == NULL) { 1254 ifp->if_ierrors++; 1255 break; 1256 } 1257 ifp->if_ipackets++; 1258 #if !(defined(__FreeBSD__) && __FreeBSD__ >= 4) 1259 AWI_BPF_MTAP(sc, m, AWI_BPF_NORM); 1260 #endif 1261 #ifdef __NetBSD__ 1262 (*ifp->if_input)(ifp, m); 1263 #else 1264 eh = mtod(m, struct ether_header *); 1265 m_adj(m, sizeof(*eh)); 1266 ether_input(ifp, eh, m); 1267 #endif 1268 break; 1269 case IEEE80211_FC0_TYPE_MGT: 1270 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1271 IEEE80211_FC1_DIR_NODS) { 1272 m_freem(m); 1273 return; 1274 } 1275 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 1276 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 1277 case IEEE80211_FC0_SUBTYPE_BEACON: 1278 awi_recv_beacon(sc, m, rxts, rssi); 1279 break; 1280 case IEEE80211_FC0_SUBTYPE_AUTH: 1281 awi_recv_auth(sc, m); 1282 break; 1283 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 1284 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 1285 awi_recv_asresp(sc, m); 1286 break; 1287 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1288 if (sc->sc_mib_local.Network_Mode) 1289 awi_send_auth(sc, 1); 1290 break; 1291 case IEEE80211_FC0_SUBTYPE_DISASSOC: 1292 if (sc->sc_mib_local.Network_Mode) 1293 awi_send_asreq(sc, 1); 1294 break; 1295 } 1296 m_freem(m); 1297 break; 1298 case IEEE80211_FC0_TYPE_CTL: 1299 default: 1300 /* should not come here */ 1301 m_freem(m); 1302 break; 1303 } 1304 } 1305 1306 static void 1307 awi_rxint(sc) 1308 struct awi_softc *sc; 1309 { 1310 u_int8_t state, rate, rssi; 1311 u_int16_t len; 1312 u_int32_t frame, next, rxts, rxoff; 1313 struct mbuf *m; 1314 1315 rxoff = sc->sc_rxdoff; 1316 for (;;) { 1317 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1318 if (state & AWI_RXD_ST_OWN) 1319 break; 1320 if (!(state & AWI_RXD_ST_CONSUMED)) { 1321 if (state & AWI_RXD_ST_RXERROR) 1322 sc->sc_ifp->if_ierrors++; 1323 else { 1324 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1325 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1326 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1327 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 0x7fff; 1328 rxts = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1329 m = awi_devget(sc, frame, len); 1330 if (state & AWI_RXD_ST_LF) 1331 awi_input(sc, m, rxts, rssi); 1332 else 1333 sc->sc_rxpend = m; 1334 } 1335 state |= AWI_RXD_ST_CONSUMED; 1336 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1337 } 1338 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1339 if (next & AWI_RXD_NEXT_LAST) 1340 break; 1341 /* make sure the next pointer is correct */ 1342 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1343 break; 1344 state |= AWI_RXD_ST_OWN; 1345 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1346 rxoff = next & 0x7fff; 1347 } 1348 sc->sc_rxdoff = rxoff; 1349 } 1350 1351 static struct mbuf * 1352 awi_devget(sc, off, len) 1353 struct awi_softc *sc; 1354 u_int32_t off; 1355 u_int16_t len; 1356 { 1357 struct mbuf *m; 1358 struct mbuf *top, **mp; 1359 u_int tlen; 1360 1361 top = sc->sc_rxpend; 1362 mp = ⊤ 1363 if (top != NULL) { 1364 sc->sc_rxpend = NULL; 1365 top->m_pkthdr.len += len; 1366 m = top; 1367 while (*mp != NULL) { 1368 m = *mp; 1369 mp = &m->m_next; 1370 } 1371 if (m->m_flags & M_EXT) 1372 tlen = m->m_ext.ext_size; 1373 else if (m->m_flags & M_PKTHDR) 1374 tlen = MHLEN; 1375 else 1376 tlen = MLEN; 1377 tlen -= m->m_len; 1378 if (tlen > len) 1379 tlen = len; 1380 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1381 off += tlen; 1382 len -= tlen; 1383 } 1384 1385 while (len > 0) { 1386 if (top == NULL) { 1387 MGETHDR(m, M_DONTWAIT, MT_DATA); 1388 if (m == NULL) 1389 return NULL; 1390 m->m_pkthdr.rcvif = sc->sc_ifp; 1391 m->m_pkthdr.len = len; 1392 m->m_len = MHLEN; 1393 } else { 1394 MGET(m, M_DONTWAIT, MT_DATA); 1395 if (m == NULL) { 1396 m_freem(top); 1397 return NULL; 1398 } 1399 m->m_len = MLEN; 1400 } 1401 if (len >= MINCLSIZE) { 1402 MCLGET(m, M_DONTWAIT); 1403 if (m->m_flags & M_EXT) 1404 m->m_len = m->m_ext.ext_size; 1405 } 1406 if (top == NULL) { 1407 int hdrlen = sizeof(struct ieee80211_frame) + 1408 (sc->sc_format_llc ? sizeof(struct llc) : 1409 sizeof(struct ether_header)); 1410 caddr_t newdata = (caddr_t) 1411 ALIGN(m->m_data + hdrlen) - hdrlen; 1412 m->m_len -= newdata - m->m_data; 1413 m->m_data = newdata; 1414 } 1415 if (m->m_len > len) 1416 m->m_len = len; 1417 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1418 off += m->m_len; 1419 len -= m->m_len; 1420 *mp = m; 1421 mp = &m->m_next; 1422 } 1423 return top; 1424 } 1425 1426 /* 1427 * Initialize hardware and start firmware to accept commands. 1428 * Called everytime after power on firmware. 1429 */ 1430 1431 static int 1432 awi_init_hw(sc) 1433 struct awi_softc *sc; 1434 { 1435 u_int8_t status; 1436 u_int16_t intmask; 1437 int i, error; 1438 1439 sc->sc_enab_intr = 0; 1440 sc->sc_invalid = 0; /* XXX: really? */ 1441 awi_drvstate(sc, AWI_DRV_RESET); 1442 1443 /* reset firmware */ 1444 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1445 DELAY(100); 1446 awi_write_1(sc, AWI_SELFTEST, 0); 1447 awi_write_1(sc, AWI_CMD, 0); 1448 awi_write_1(sc, AWI_BANNER, 0); 1449 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1450 DELAY(100); 1451 1452 /* wait for selftest completion */ 1453 for (i = 0; ; i++) { 1454 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1455 printf("%s: failed to complete selftest (timeout)\n", 1456 sc->sc_dev.dv_xname); 1457 return ENXIO; 1458 } 1459 status = awi_read_1(sc, AWI_SELFTEST); 1460 if ((status & 0xf0) == 0xf0) 1461 break; 1462 if (sc->sc_cansleep) { 1463 sc->sc_sleep_cnt++; 1464 (void)tsleep(sc, PWAIT, "awitst", 1); 1465 sc->sc_sleep_cnt--; 1466 } else { 1467 DELAY(1000*1000/hz); 1468 } 1469 } 1470 if (status != AWI_SELFTEST_PASSED) { 1471 printf("%s: failed to complete selftest (code %x)\n", 1472 sc->sc_dev.dv_xname, status); 1473 return ENXIO; 1474 } 1475 1476 /* check banner to confirm firmware write it */ 1477 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1478 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1479 printf("%s: failed to complete selftest (bad banner)\n", 1480 sc->sc_dev.dv_xname); 1481 for (i = 0; i < AWI_BANNER_LEN; i++) 1482 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1483 printf("\n"); 1484 return ENXIO; 1485 } 1486 1487 /* initializing interrupt */ 1488 sc->sc_enab_intr = 1; 1489 error = awi_intr_lock(sc); 1490 if (error) 1491 return error; 1492 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1493 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1494 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1495 awi_write_1(sc, AWI_INTMASK2, 0); 1496 awi_write_1(sc, AWI_INTSTAT, 0); 1497 awi_write_1(sc, AWI_INTSTAT2, 0); 1498 awi_intr_unlock(sc); 1499 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1500 1501 /* issueing interface test command */ 1502 error = awi_cmd(sc, AWI_CMD_NOP); 1503 if (error) { 1504 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1505 if (error == ENXIO) 1506 printf(" (no hardware)\n"); 1507 else if (error != EWOULDBLOCK) 1508 printf(" (error %d)\n", error); 1509 else if (sc->sc_cansleep) 1510 printf(" (lost interrupt)\n"); 1511 else 1512 printf(" (command timeout)\n"); 1513 } 1514 return error; 1515 } 1516 1517 /* 1518 * Extract the factory default MIB value from firmware and assign the driver 1519 * default value. 1520 * Called once at attaching the interface. 1521 */ 1522 1523 static int 1524 awi_init_mibs(sc) 1525 struct awi_softc *sc; 1526 { 1527 int i, error; 1528 u_int8_t *rate; 1529 1530 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL)) != 0 || 1531 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR)) != 0 || 1532 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC)) != 0 || 1533 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT)) != 0 || 1534 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY)) != 0) { 1535 printf("%s: failed to get default mib value (error %d)\n", 1536 sc->sc_dev.dv_xname, error); 1537 return error; 1538 } 1539 1540 rate = sc->sc_mib_phy.aSuprt_Data_Rates; 1541 sc->sc_tx_rate = AWI_RATE_1MBIT; 1542 for (i = 0; i < rate[1]; i++) { 1543 if (AWI_80211_RATE(rate[2 + i]) > sc->sc_tx_rate) 1544 sc->sc_tx_rate = AWI_80211_RATE(rate[2 + i]); 1545 } 1546 awi_init_region(sc); 1547 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1548 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1549 sc->sc_mib_local.Fragmentation_Dis = 1; 1550 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1551 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1552 1553 /* allocate buffers */ 1554 sc->sc_txbase = AWI_BUFFERS; 1555 sc->sc_txend = sc->sc_txbase + 1556 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1557 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1558 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1559 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1560 sc->sc_txend - sc->sc_txbase); 1561 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1562 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1563 AWI_BUFFERS_END - sc->sc_txend); 1564 sc->sc_mib_local.Network_Mode = 1; 1565 sc->sc_mib_local.Acting_as_AP = 0; 1566 return 0; 1567 } 1568 1569 /* 1570 * Start transmitter and receiver of firmware 1571 * Called after awi_init_hw() to start operation. 1572 */ 1573 1574 static int 1575 awi_init_txrx(sc) 1576 struct awi_softc *sc; 1577 { 1578 int error; 1579 1580 /* start transmitter */ 1581 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 1582 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 1583 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 1584 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 1585 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 1586 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 1587 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 1588 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 1589 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_DATA, sc->sc_txbase); 1590 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_MGT, 0); 1591 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_BCAST, 0); 1592 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_PS, 0); 1593 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_CF, 0); 1594 error = awi_cmd(sc, AWI_CMD_INIT_TX); 1595 if (error) 1596 return error; 1597 1598 /* start receiver */ 1599 if (sc->sc_rxpend) { 1600 m_freem(sc->sc_rxpend); 1601 sc->sc_rxpend = NULL; 1602 } 1603 error = awi_cmd(sc, AWI_CMD_INIT_RX); 1604 if (error) 1605 return error; 1606 sc->sc_rxdoff = awi_read_4(sc, AWI_CMD_PARAMS+AWI_CA_IRX_DATA_DESC); 1607 sc->sc_rxmoff = awi_read_4(sc, AWI_CMD_PARAMS+AWI_CA_IRX_PS_DESC); 1608 return 0; 1609 } 1610 1611 static void 1612 awi_stop_txrx(sc) 1613 struct awi_softc *sc; 1614 { 1615 1616 if (sc->sc_cmd_inprog) 1617 (void)awi_cmd_wait(sc); 1618 (void)awi_cmd(sc, AWI_CMD_KILL_RX); 1619 (void)awi_cmd_wait(sc); 1620 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 1621 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_DATA, 1); 1622 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_MGT, 0); 1623 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_BCAST, 0); 1624 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_PS, 0); 1625 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_CF, 0); 1626 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX); 1627 (void)awi_cmd_wait(sc); 1628 } 1629 1630 int 1631 awi_init_region(sc) 1632 struct awi_softc *sc; 1633 { 1634 1635 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1636 switch (sc->sc_mib_phy.aCurrent_Reg_Domain) { 1637 case AWI_REG_DOMAIN_US: 1638 case AWI_REG_DOMAIN_CA: 1639 case AWI_REG_DOMAIN_EU: 1640 sc->sc_scan_min = 0; 1641 sc->sc_scan_max = 77; 1642 break; 1643 case AWI_REG_DOMAIN_ES: 1644 sc->sc_scan_min = 0; 1645 sc->sc_scan_max = 26; 1646 break; 1647 case AWI_REG_DOMAIN_FR: 1648 sc->sc_scan_min = 0; 1649 sc->sc_scan_max = 32; 1650 break; 1651 case AWI_REG_DOMAIN_JP: 1652 sc->sc_scan_min = 6; 1653 sc->sc_scan_max = 17; 1654 break; 1655 default: 1656 return EINVAL; 1657 } 1658 sc->sc_scan_set = sc->sc_scan_cur % 3 + 1; 1659 } else { 1660 switch (sc->sc_mib_phy.aCurrent_Reg_Domain) { 1661 case AWI_REG_DOMAIN_US: 1662 case AWI_REG_DOMAIN_CA: 1663 sc->sc_scan_min = 1; 1664 sc->sc_scan_max = 11; 1665 sc->sc_scan_cur = 3; 1666 break; 1667 case AWI_REG_DOMAIN_EU: 1668 sc->sc_scan_min = 1; 1669 sc->sc_scan_max = 13; 1670 sc->sc_scan_cur = 3; 1671 break; 1672 case AWI_REG_DOMAIN_ES: 1673 sc->sc_scan_min = 10; 1674 sc->sc_scan_max = 11; 1675 sc->sc_scan_cur = 10; 1676 break; 1677 case AWI_REG_DOMAIN_FR: 1678 sc->sc_scan_min = 10; 1679 sc->sc_scan_max = 13; 1680 sc->sc_scan_cur = 10; 1681 break; 1682 case AWI_REG_DOMAIN_JP: 1683 sc->sc_scan_min = 14; 1684 sc->sc_scan_max = 14; 1685 sc->sc_scan_cur = 14; 1686 break; 1687 default: 1688 return EINVAL; 1689 } 1690 } 1691 sc->sc_ownch = sc->sc_scan_cur; 1692 return 0; 1693 } 1694 1695 static int 1696 awi_start_scan(sc) 1697 struct awi_softc *sc; 1698 { 1699 int error = 0; 1700 struct awi_bss *bp; 1701 1702 while ((bp = TAILQ_FIRST(&sc->sc_scan)) != NULL) { 1703 TAILQ_REMOVE(&sc->sc_scan, bp, list); 1704 free(bp, M_DEVBUF); 1705 } 1706 if (!sc->sc_mib_local.Network_Mode && sc->sc_no_bssid) { 1707 memset(&sc->sc_bss, 0, sizeof(sc->sc_bss)); 1708 sc->sc_bss.essid[0] = IEEE80211_ELEMID_SSID; 1709 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1710 sc->sc_bss.chanset = sc->sc_ownch % 3 + 1; 1711 sc->sc_bss.pattern = sc->sc_ownch; 1712 sc->sc_bss.index = 1; 1713 sc->sc_bss.dwell_time = 200; /*XXX*/ 1714 } else 1715 sc->sc_bss.chanset = sc->sc_ownch; 1716 sc->sc_status = AWI_ST_SETSS; 1717 error = awi_set_ss(sc); 1718 } else { 1719 if (sc->sc_mib_local.Network_Mode) 1720 awi_drvstate(sc, AWI_DRV_INFSC); 1721 else 1722 awi_drvstate(sc, AWI_DRV_ADHSC); 1723 sc->sc_start_bss = 0; 1724 sc->sc_active_scan = 1; 1725 sc->sc_mgt_timer = AWI_ASCAN_WAIT / 1000; 1726 sc->sc_ifp->if_timer = 1; 1727 sc->sc_status = AWI_ST_SCAN; 1728 error = awi_cmd_scan(sc); 1729 } 1730 return error; 1731 } 1732 1733 static int 1734 awi_next_scan(sc) 1735 struct awi_softc *sc; 1736 { 1737 int error; 1738 1739 for (;;) { 1740 /* 1741 * The pattern parameter for FH phy should be incremented 1742 * by 3. But BayStack 650 Access Points apparently always 1743 * assign hop pattern set parameter to 1 for any pattern. 1744 * So we try all combinations of pattern/set parameters. 1745 * Since this causes no error, it may be a bug of 1746 * PCnetMobile firmware. 1747 */ 1748 sc->sc_scan_cur++; 1749 if (sc->sc_scan_cur > sc->sc_scan_max) { 1750 sc->sc_scan_cur = sc->sc_scan_min; 1751 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 1752 sc->sc_scan_set = sc->sc_scan_set % 3 + 1; 1753 } 1754 error = awi_cmd_scan(sc); 1755 if (error != EINVAL) 1756 break; 1757 } 1758 return error; 1759 } 1760 1761 static void 1762 awi_stop_scan(sc) 1763 struct awi_softc *sc; 1764 { 1765 struct ifnet *ifp = sc->sc_ifp; 1766 struct awi_bss *bp, *sbp; 1767 int fail; 1768 1769 bp = TAILQ_FIRST(&sc->sc_scan); 1770 if (bp == NULL) { 1771 notfound: 1772 if (sc->sc_active_scan) { 1773 if (ifp->if_flags & IFF_DEBUG) 1774 printf("%s: entering passive scan mode\n", 1775 sc->sc_dev.dv_xname); 1776 sc->sc_active_scan = 0; 1777 } 1778 sc->sc_mgt_timer = AWI_PSCAN_WAIT / 1000; 1779 ifp->if_timer = 1; 1780 (void)awi_next_scan(sc); 1781 return; 1782 } 1783 sbp = NULL; 1784 if (ifp->if_flags & IFF_DEBUG) 1785 printf("%s:\tmacaddr ch/pat sig flag wep essid\n", 1786 sc->sc_dev.dv_xname); 1787 for (; bp != NULL; bp = TAILQ_NEXT(bp, list)) { 1788 if (bp->fails) { 1789 /* 1790 * The configuration of the access points may change 1791 * during my scan. So we retries to associate with 1792 * it unless there are any suitable AP. 1793 */ 1794 if (bp->fails++ < 3) 1795 continue; 1796 bp->fails = 0; 1797 } 1798 fail = 0; 1799 /* 1800 * Since the firmware apparently scans not only the specified 1801 * channel of SCAN command but all available channel within 1802 * the region, we should filter out unnecessary responses here. 1803 */ 1804 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1805 if (bp->pattern < sc->sc_scan_min || 1806 bp->pattern > sc->sc_scan_max) 1807 fail |= 0x01; 1808 } else { 1809 if (bp->chanset < sc->sc_scan_min || 1810 bp->chanset > sc->sc_scan_max) 1811 fail |= 0x01; 1812 } 1813 if (sc->sc_mib_local.Network_Mode) { 1814 if (!(bp->capinfo & IEEE80211_CAPINFO_ESS) || 1815 (bp->capinfo & IEEE80211_CAPINFO_IBSS)) 1816 fail |= 0x02; 1817 } else { 1818 if ((bp->capinfo & IEEE80211_CAPINFO_ESS) || 1819 !(bp->capinfo & IEEE80211_CAPINFO_IBSS)) 1820 fail |= 0x02; 1821 } 1822 if (sc->sc_wep_algo == NULL) { 1823 if (bp->capinfo & IEEE80211_CAPINFO_PRIVACY) 1824 fail |= 0x04; 1825 } else { 1826 if (!(bp->capinfo & IEEE80211_CAPINFO_PRIVACY)) 1827 fail |= 0x04; 1828 } 1829 if (sc->sc_mib_mac.aDesired_ESS_ID[1] != 0 && 1830 memcmp(&sc->sc_mib_mac.aDesired_ESS_ID, bp->essid, 1831 sizeof(bp->essid)) != 0) 1832 fail |= 0x08; 1833 if (ifp->if_flags & IFF_DEBUG) { 1834 printf(" %c %s", fail ? '-' : '+', 1835 ether_sprintf(bp->esrc)); 1836 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 1837 printf(" %2d/%d%c", bp->pattern, bp->chanset, 1838 fail & 0x01 ? '!' : ' '); 1839 else 1840 printf(" %4d%c", bp->chanset, 1841 fail & 0x01 ? '!' : ' '); 1842 printf(" %+4d", bp->rssi); 1843 printf(" %4s%c", 1844 (bp->capinfo & IEEE80211_CAPINFO_ESS) ? "ess" : 1845 (bp->capinfo & IEEE80211_CAPINFO_IBSS) ? "ibss" : 1846 "????", 1847 fail & 0x02 ? '!' : ' '); 1848 printf(" %3s%c ", 1849 (bp->capinfo & IEEE80211_CAPINFO_PRIVACY) ? "wep" : 1850 "no", 1851 fail & 0x04 ? '!' : ' '); 1852 awi_print_essid(bp->essid); 1853 printf("%s\n", fail & 0x08 ? "!" : ""); 1854 } 1855 if (!fail) { 1856 if (sbp == NULL || bp->rssi > sbp->rssi) 1857 sbp = bp; 1858 } 1859 } 1860 if (sbp == NULL) 1861 goto notfound; 1862 sc->sc_bss = *sbp; 1863 (void)awi_set_ss(sc); 1864 } 1865 1866 static void 1867 awi_recv_beacon(sc, m0, rxts, rssi) 1868 struct awi_softc *sc; 1869 struct mbuf *m0; 1870 u_int32_t rxts; 1871 u_int8_t rssi; 1872 { 1873 struct ieee80211_frame *wh; 1874 struct awi_bss *bp; 1875 u_int8_t *frame, *eframe; 1876 u_int8_t *tstamp, *bintval, *capinfo, *ssid, *rates, *parms; 1877 1878 if (sc->sc_status != AWI_ST_SCAN) 1879 return; 1880 wh = mtod(m0, struct ieee80211_frame *); 1881 1882 frame = (u_int8_t *)&wh[1]; 1883 eframe = mtod(m0, u_int8_t *) + m0->m_len; 1884 /* 1885 * XXX: 1886 * timestamp [8] 1887 * beacon interval [2] 1888 * capability information [2] 1889 * ssid [tlv] 1890 * supported rates [tlv] 1891 * parameter set [tlv] 1892 * ... 1893 */ 1894 if (frame + 12 > eframe) { 1895 #ifdef AWI_DEBUG 1896 if (awi_verbose) 1897 printf("awi_recv_beacon: frame too short \n"); 1898 #endif 1899 return; 1900 } 1901 tstamp = frame; 1902 frame += 8; 1903 bintval = frame; 1904 frame += 2; 1905 capinfo = frame; 1906 frame += 2; 1907 1908 ssid = rates = parms = NULL; 1909 while (frame < eframe) { 1910 switch (*frame) { 1911 case IEEE80211_ELEMID_SSID: 1912 ssid = frame; 1913 break; 1914 case IEEE80211_ELEMID_RATES: 1915 rates = frame; 1916 break; 1917 case IEEE80211_ELEMID_FHPARMS: 1918 case IEEE80211_ELEMID_DSPARMS: 1919 parms = frame; 1920 break; 1921 } 1922 frame += frame[1] + 2; 1923 } 1924 if (ssid == NULL || rates == NULL || parms == NULL) { 1925 #ifdef AWI_DEBUG 1926 if (awi_verbose) 1927 printf("awi_recv_beacon: ssid=%p, rates=%p, parms=%p\n", 1928 ssid, rates, parms); 1929 #endif 1930 return; 1931 } 1932 if (ssid[1] > IEEE80211_NWID_LEN) { 1933 #ifdef AWI_DEBUG 1934 if (awi_verbose) 1935 printf("awi_recv_beacon: bad ssid len: %d from %s\n", 1936 ssid[1], ether_sprintf(wh->i_addr2)); 1937 #endif 1938 return; 1939 } 1940 1941 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 1942 bp = TAILQ_NEXT(bp, list)) { 1943 if (memcmp(bp->esrc, wh->i_addr2, ETHER_ADDR_LEN) == 0 && 1944 memcmp(bp->bssid, wh->i_addr3, ETHER_ADDR_LEN) == 0) 1945 break; 1946 } 1947 if (bp == NULL) { 1948 bp = malloc(sizeof(struct awi_bss), M_DEVBUF, M_NOWAIT); 1949 if (bp == NULL) 1950 return; 1951 TAILQ_INSERT_TAIL(&sc->sc_scan, bp, list); 1952 memcpy(bp->esrc, wh->i_addr2, ETHER_ADDR_LEN); 1953 memcpy(bp->bssid, wh->i_addr3, ETHER_ADDR_LEN); 1954 memset(bp->essid, 0, sizeof(bp->essid)); 1955 memcpy(bp->essid, ssid, 2 + ssid[1]); 1956 } 1957 bp->rssi = rssi; 1958 bp->rxtime = rxts; 1959 memcpy(bp->timestamp, tstamp, sizeof(bp->timestamp)); 1960 bp->interval = LE_READ_2(bintval); 1961 bp->capinfo = LE_READ_2(capinfo); 1962 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1963 bp->chanset = parms[4]; 1964 bp->pattern = parms[5]; 1965 bp->index = parms[6]; 1966 bp->dwell_time = LE_READ_2(parms + 2); 1967 } else { 1968 bp->chanset = parms[2]; 1969 bp->pattern = 0; 1970 bp->index = 0; 1971 bp->dwell_time = 0; 1972 } 1973 if (sc->sc_mgt_timer == 0) 1974 awi_stop_scan(sc); 1975 } 1976 1977 static int 1978 awi_set_ss(sc) 1979 struct awi_softc *sc; 1980 { 1981 struct ifnet *ifp = sc->sc_ifp; 1982 struct awi_bss *bp; 1983 int error; 1984 1985 sc->sc_status = AWI_ST_SETSS; 1986 bp = &sc->sc_bss; 1987 if (ifp->if_flags & IFF_DEBUG) { 1988 printf("%s: ch %d pat %d id %d dw %d iv %d bss %s ssid ", 1989 sc->sc_dev.dv_xname, bp->chanset, 1990 bp->pattern, bp->index, bp->dwell_time, bp->interval, 1991 ether_sprintf(bp->bssid)); 1992 awi_print_essid(bp->essid); 1993 printf("\n"); 1994 } 1995 memcpy(&sc->sc_mib_mgt.aCurrent_BSS_ID, bp->bssid, ETHER_ADDR_LEN); 1996 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID, bp->essid, 1997 AWI_ESS_ID_SIZE); 1998 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, bp->interval); 1999 error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT); 2000 return error; 2001 } 2002 2003 static void 2004 awi_try_sync(sc) 2005 struct awi_softc *sc; 2006 { 2007 struct awi_bss *bp; 2008 2009 sc->sc_status = AWI_ST_SYNC; 2010 bp = &sc->sc_bss; 2011 2012 if (sc->sc_cmd_inprog) { 2013 if (awi_cmd_wait(sc)) 2014 return; 2015 } 2016 sc->sc_cmd_inprog = AWI_CMD_SYNC; 2017 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_SET, bp->chanset); 2018 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_PATTERN, bp->pattern); 2019 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_IDX, bp->index); 2020 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_STARTBSS, 2021 sc->sc_start_bss ? 1 : 0); 2022 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_DWELL, bp->dwell_time); 2023 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_MBZ, 0); 2024 awi_write_bytes(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_TIMESTAMP, 2025 bp->timestamp, 8); 2026 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_REFTIME, bp->rxtime); 2027 (void)awi_cmd(sc, AWI_CMD_SYNC); 2028 } 2029 2030 static void 2031 awi_sync_done(sc) 2032 struct awi_softc *sc; 2033 { 2034 struct ifnet *ifp = sc->sc_ifp; 2035 2036 if (sc->sc_mib_local.Network_Mode) { 2037 awi_drvstate(sc, AWI_DRV_INFSY); 2038 awi_send_auth(sc, 1); 2039 } else { 2040 if (ifp->if_flags & IFF_DEBUG) { 2041 printf("%s: synced with", sc->sc_dev.dv_xname); 2042 if (sc->sc_no_bssid) 2043 printf(" no-bssid"); 2044 else { 2045 printf(" %s ssid ", 2046 ether_sprintf(sc->sc_bss.bssid)); 2047 awi_print_essid(sc->sc_bss.essid); 2048 } 2049 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 2050 printf(" at chanset %d pattern %d\n", 2051 sc->sc_bss.chanset, sc->sc_bss.pattern); 2052 else 2053 printf(" at channel %d\n", sc->sc_bss.chanset); 2054 } 2055 awi_drvstate(sc, AWI_DRV_ADHSY); 2056 sc->sc_status = AWI_ST_RUNNING; 2057 ifp->if_flags |= IFF_RUNNING; 2058 awi_start(ifp); 2059 } 2060 } 2061 2062 static void 2063 awi_send_deauth(sc) 2064 struct awi_softc *sc; 2065 { 2066 struct ifnet *ifp = sc->sc_ifp; 2067 struct mbuf *m; 2068 struct ieee80211_frame *wh; 2069 u_int8_t *deauth; 2070 2071 MGETHDR(m, M_DONTWAIT, MT_DATA); 2072 if (m == NULL) 2073 return; 2074 if (ifp->if_flags & IFF_DEBUG) 2075 printf("%s: sending deauth to %s\n", sc->sc_dev.dv_xname, 2076 ether_sprintf(sc->sc_bss.bssid)); 2077 2078 wh = mtod(m, struct ieee80211_frame *); 2079 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2080 IEEE80211_FC0_SUBTYPE_AUTH; 2081 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2082 LE_WRITE_2(wh->i_dur, 0); 2083 LE_WRITE_2(wh->i_seq, 0); 2084 memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2085 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2086 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2087 2088 deauth = (u_int8_t *)&wh[1]; 2089 LE_WRITE_2(deauth, IEEE80211_REASON_AUTH_LEAVE); 2090 deauth += 2; 2091 2092 m->m_pkthdr.len = m->m_len = deauth - mtod(m, u_int8_t *); 2093 IF_ENQUEUE(&sc->sc_mgtq, m); 2094 awi_start(ifp); 2095 awi_drvstate(sc, AWI_DRV_INFTOSS); 2096 } 2097 2098 static void 2099 awi_send_auth(sc, seq) 2100 struct awi_softc *sc; 2101 int seq; 2102 { 2103 struct ifnet *ifp = sc->sc_ifp; 2104 struct mbuf *m; 2105 struct ieee80211_frame *wh; 2106 u_int8_t *auth; 2107 2108 MGETHDR(m, M_DONTWAIT, MT_DATA); 2109 if (m == NULL) 2110 return; 2111 sc->sc_status = AWI_ST_AUTH; 2112 if (ifp->if_flags & IFF_DEBUG) 2113 printf("%s: sending auth to %s\n", sc->sc_dev.dv_xname, 2114 ether_sprintf(sc->sc_bss.bssid)); 2115 2116 wh = mtod(m, struct ieee80211_frame *); 2117 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2118 IEEE80211_FC0_SUBTYPE_AUTH; 2119 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2120 LE_WRITE_2(wh->i_dur, 0); 2121 LE_WRITE_2(wh->i_seq, 0); 2122 memcpy(wh->i_addr1, sc->sc_bss.esrc, ETHER_ADDR_LEN); 2123 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2124 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2125 2126 auth = (u_int8_t *)&wh[1]; 2127 /* algorithm number */ 2128 LE_WRITE_2(auth, IEEE80211_AUTH_ALG_OPEN); 2129 auth += 2; 2130 /* sequence number */ 2131 LE_WRITE_2(auth, seq); 2132 auth += 2; 2133 /* status */ 2134 LE_WRITE_2(auth, 0); 2135 auth += 2; 2136 2137 m->m_pkthdr.len = m->m_len = auth - mtod(m, u_int8_t *); 2138 IF_ENQUEUE(&sc->sc_mgtq, m); 2139 awi_start(ifp); 2140 2141 sc->sc_mgt_timer = AWI_TRANS_TIMEOUT / 1000; 2142 ifp->if_timer = 1; 2143 } 2144 2145 static void 2146 awi_recv_auth(sc, m0) 2147 struct awi_softc *sc; 2148 struct mbuf *m0; 2149 { 2150 struct ieee80211_frame *wh; 2151 u_int8_t *auth, *eframe; 2152 struct awi_bss *bp; 2153 u_int16_t status; 2154 2155 wh = mtod(m0, struct ieee80211_frame *); 2156 auth = (u_int8_t *)&wh[1]; 2157 eframe = mtod(m0, u_int8_t *) + m0->m_len; 2158 if (sc->sc_ifp->if_flags & IFF_DEBUG) 2159 printf("%s: receive auth from %s\n", sc->sc_dev.dv_xname, 2160 ether_sprintf(wh->i_addr2)); 2161 2162 /* algorithm number */ 2163 if (LE_READ_2(auth) != IEEE80211_AUTH_ALG_OPEN) 2164 return; 2165 auth += 2; 2166 if (!sc->sc_mib_local.Network_Mode) { 2167 if (sc->sc_status != AWI_ST_RUNNING) 2168 return; 2169 if (LE_READ_2(auth) == 1) 2170 awi_send_auth(sc, 2); 2171 return; 2172 } 2173 if (sc->sc_status != AWI_ST_AUTH) 2174 return; 2175 /* sequence number */ 2176 if (LE_READ_2(auth) != 2) 2177 return; 2178 auth += 2; 2179 /* status */ 2180 status = LE_READ_2(auth); 2181 if (status != 0) { 2182 printf("%s: authentication failed (reason %d)\n", 2183 sc->sc_dev.dv_xname, status); 2184 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 2185 bp = TAILQ_NEXT(bp, list)) { 2186 if (memcmp(bp->esrc, sc->sc_bss.esrc, ETHER_ADDR_LEN) 2187 == 0) { 2188 bp->fails++; 2189 break; 2190 } 2191 } 2192 return; 2193 } 2194 sc->sc_mgt_timer = 0; 2195 awi_drvstate(sc, AWI_DRV_INFAUTH); 2196 awi_send_asreq(sc, 0); 2197 } 2198 2199 static void 2200 awi_send_asreq(sc, reassoc) 2201 struct awi_softc *sc; 2202 int reassoc; 2203 { 2204 struct ifnet *ifp = sc->sc_ifp; 2205 struct mbuf *m; 2206 struct ieee80211_frame *wh; 2207 u_int16_t lintval; 2208 u_int8_t *asreq; 2209 2210 MGETHDR(m, M_DONTWAIT, MT_DATA); 2211 if (m == NULL) 2212 return; 2213 sc->sc_status = AWI_ST_ASSOC; 2214 if (ifp->if_flags & IFF_DEBUG) 2215 printf("%s: sending %sassoc req to %s\n", sc->sc_dev.dv_xname, 2216 reassoc ? "re" : "", 2217 ether_sprintf(sc->sc_bss.bssid)); 2218 2219 wh = mtod(m, struct ieee80211_frame *); 2220 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT; 2221 if (reassoc) 2222 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_REASSOC_REQ; 2223 else 2224 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_ASSOC_REQ; 2225 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2226 LE_WRITE_2(wh->i_dur, 0); 2227 LE_WRITE_2(wh->i_seq, 0); 2228 memcpy(wh->i_addr1, sc->sc_bss.esrc, ETHER_ADDR_LEN); 2229 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2230 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2231 2232 asreq = (u_int8_t *)&wh[1]; 2233 2234 /* capability info */ 2235 if (sc->sc_wep_algo == NULL) 2236 LE_WRITE_2(asreq, IEEE80211_CAPINFO_CF_POLLABLE); 2237 else 2238 LE_WRITE_2(asreq, 2239 IEEE80211_CAPINFO_CF_POLLABLE | IEEE80211_CAPINFO_PRIVACY); 2240 asreq += 2; 2241 /* listen interval */ 2242 lintval = LE_READ_2(&sc->sc_mib_mgt.aListen_Interval); 2243 LE_WRITE_2(asreq, lintval); 2244 asreq += 2; 2245 if (reassoc) { 2246 /* current AP address */ 2247 memcpy(asreq, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2248 asreq += ETHER_ADDR_LEN; 2249 } 2250 /* ssid */ 2251 memcpy(asreq, sc->sc_bss.essid, 2 + sc->sc_bss.essid[1]); 2252 asreq += 2 + asreq[1]; 2253 /* supported rates */ 2254 memcpy(asreq, &sc->sc_mib_phy.aSuprt_Data_Rates, 4); 2255 asreq += 2 + asreq[1]; 2256 2257 m->m_pkthdr.len = m->m_len = asreq - mtod(m, u_int8_t *); 2258 IF_ENQUEUE(&sc->sc_mgtq, m); 2259 awi_start(ifp); 2260 2261 sc->sc_mgt_timer = AWI_TRANS_TIMEOUT / 1000; 2262 ifp->if_timer = 1; 2263 } 2264 2265 static void 2266 awi_recv_asresp(sc, m0) 2267 struct awi_softc *sc; 2268 struct mbuf *m0; 2269 { 2270 struct ieee80211_frame *wh; 2271 u_int8_t *asresp, *eframe; 2272 u_int16_t status; 2273 u_int8_t rate, *phy_rates; 2274 struct awi_bss *bp; 2275 int i, j; 2276 2277 wh = mtod(m0, struct ieee80211_frame *); 2278 asresp = (u_int8_t *)&wh[1]; 2279 eframe = mtod(m0, u_int8_t *) + m0->m_len; 2280 if (sc->sc_ifp->if_flags & IFF_DEBUG) 2281 printf("%s: receive assoc resp from %s\n", sc->sc_dev.dv_xname, 2282 ether_sprintf(wh->i_addr2)); 2283 2284 if (!sc->sc_mib_local.Network_Mode) 2285 return; 2286 2287 if (sc->sc_status != AWI_ST_ASSOC) 2288 return; 2289 /* capability info */ 2290 asresp += 2; 2291 /* status */ 2292 status = LE_READ_2(asresp); 2293 if (status != 0) { 2294 printf("%s: association failed (reason %d)\n", 2295 sc->sc_dev.dv_xname, status); 2296 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 2297 bp = TAILQ_NEXT(bp, list)) { 2298 if (memcmp(bp->esrc, sc->sc_bss.esrc, ETHER_ADDR_LEN) 2299 == 0) { 2300 bp->fails++; 2301 break; 2302 } 2303 } 2304 return; 2305 } 2306 asresp += 2; 2307 /* association id */ 2308 asresp += 2; 2309 /* supported rates */ 2310 rate = AWI_RATE_1MBIT; 2311 for (i = 0; i < asresp[1]; i++) { 2312 if (AWI_80211_RATE(asresp[2 + i]) <= rate) 2313 continue; 2314 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 2315 for (j = 0; j < phy_rates[1]; j++) { 2316 if (AWI_80211_RATE(asresp[2 + i]) == 2317 AWI_80211_RATE(phy_rates[2 + j])) 2318 rate = AWI_80211_RATE(asresp[2 + i]); 2319 } 2320 } 2321 if (sc->sc_ifp->if_flags & IFF_DEBUG) { 2322 printf("%s: associated with %s ssid ", 2323 sc->sc_dev.dv_xname, ether_sprintf(sc->sc_bss.bssid)); 2324 awi_print_essid(sc->sc_bss.essid); 2325 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 2326 printf(" chanset %d pattern %d\n", 2327 sc->sc_bss.chanset, sc->sc_bss.pattern); 2328 else 2329 printf(" channel %d\n", sc->sc_bss.chanset); 2330 } 2331 sc->sc_tx_rate = rate; 2332 sc->sc_mgt_timer = 0; 2333 sc->sc_rx_timer = 10; 2334 sc->sc_ifp->if_timer = 1; 2335 sc->sc_status = AWI_ST_RUNNING; 2336 sc->sc_ifp->if_flags |= IFF_RUNNING; 2337 awi_drvstate(sc, AWI_DRV_INFASSOC); 2338 awi_start(sc->sc_ifp); 2339 } 2340 2341 static int 2342 awi_mib(sc, cmd, mib) 2343 struct awi_softc *sc; 2344 u_int8_t cmd; 2345 u_int8_t mib; 2346 { 2347 int error; 2348 u_int8_t size, *ptr; 2349 2350 switch (mib) { 2351 case AWI_MIB_LOCAL: 2352 ptr = (u_int8_t *)&sc->sc_mib_local; 2353 size = sizeof(sc->sc_mib_local); 2354 break; 2355 case AWI_MIB_ADDR: 2356 ptr = (u_int8_t *)&sc->sc_mib_addr; 2357 size = sizeof(sc->sc_mib_addr); 2358 break; 2359 case AWI_MIB_MAC: 2360 ptr = (u_int8_t *)&sc->sc_mib_mac; 2361 size = sizeof(sc->sc_mib_mac); 2362 break; 2363 case AWI_MIB_STAT: 2364 ptr = (u_int8_t *)&sc->sc_mib_stat; 2365 size = sizeof(sc->sc_mib_stat); 2366 break; 2367 case AWI_MIB_MGT: 2368 ptr = (u_int8_t *)&sc->sc_mib_mgt; 2369 size = sizeof(sc->sc_mib_mgt); 2370 break; 2371 case AWI_MIB_PHY: 2372 ptr = (u_int8_t *)&sc->sc_mib_phy; 2373 size = sizeof(sc->sc_mib_phy); 2374 break; 2375 default: 2376 return EINVAL; 2377 } 2378 if (sc->sc_cmd_inprog) { 2379 error = awi_cmd_wait(sc); 2380 if (error) { 2381 if (error == EWOULDBLOCK) 2382 printf("awi_mib: cmd %d inprog", 2383 sc->sc_cmd_inprog); 2384 return error; 2385 } 2386 } 2387 sc->sc_cmd_inprog = cmd; 2388 if (cmd == AWI_CMD_SET_MIB) 2389 awi_write_bytes(sc, AWI_CMD_PARAMS+AWI_CA_MIB_DATA, ptr, size); 2390 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_TYPE, mib); 2391 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_SIZE, size); 2392 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_INDEX, 0); 2393 error = awi_cmd(sc, cmd); 2394 if (error) 2395 return error; 2396 if (cmd == AWI_CMD_GET_MIB) { 2397 awi_read_bytes(sc, AWI_CMD_PARAMS+AWI_CA_MIB_DATA, ptr, size); 2398 #ifdef AWI_DEBUG 2399 if (awi_verbose) { 2400 int i; 2401 2402 printf("awi_mib: #%d:", mib); 2403 for (i = 0; i < size; i++) 2404 printf(" %02x", ptr[i]); 2405 printf("\n"); 2406 } 2407 #endif 2408 } 2409 return 0; 2410 } 2411 2412 static int 2413 awi_cmd_scan(sc) 2414 struct awi_softc *sc; 2415 { 2416 int error; 2417 u_int8_t scan_mode; 2418 2419 if (sc->sc_active_scan) 2420 scan_mode = AWI_SCAN_ACTIVE; 2421 else 2422 scan_mode = AWI_SCAN_PASSIVE; 2423 if (sc->sc_mib_mgt.aScan_Mode != scan_mode) { 2424 sc->sc_mib_mgt.aScan_Mode = scan_mode; 2425 error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT); 2426 return error; 2427 } 2428 2429 if (sc->sc_cmd_inprog) { 2430 error = awi_cmd_wait(sc); 2431 if (error) 2432 return error; 2433 } 2434 sc->sc_cmd_inprog = AWI_CMD_SCAN; 2435 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_DURATION, 2436 sc->sc_active_scan ? AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 2437 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 2438 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SET, 2439 sc->sc_scan_set); 2440 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_PATTERN, 2441 sc->sc_scan_cur); 2442 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_IDX, 1); 2443 } else { 2444 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SET, 2445 sc->sc_scan_cur); 2446 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_PATTERN, 0); 2447 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_IDX, 0); 2448 } 2449 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SUSP, 0); 2450 return awi_cmd(sc, AWI_CMD_SCAN); 2451 } 2452 2453 static int 2454 awi_cmd(sc, cmd) 2455 struct awi_softc *sc; 2456 u_int8_t cmd; 2457 { 2458 u_int8_t status; 2459 int error = 0; 2460 2461 sc->sc_cmd_inprog = cmd; 2462 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 2463 awi_write_1(sc, AWI_CMD, cmd); 2464 if (sc->sc_status != AWI_ST_INIT) 2465 return 0; 2466 error = awi_cmd_wait(sc); 2467 if (error) 2468 return error; 2469 status = awi_read_1(sc, AWI_CMD_STATUS); 2470 awi_write_1(sc, AWI_CMD, 0); 2471 switch (status) { 2472 case AWI_STAT_OK: 2473 break; 2474 case AWI_STAT_BADPARM: 2475 return EINVAL; 2476 default: 2477 printf("%s: command %d failed %x\n", 2478 sc->sc_dev.dv_xname, cmd, status); 2479 return ENXIO; 2480 } 2481 return 0; 2482 } 2483 2484 static void 2485 awi_cmd_done(sc) 2486 struct awi_softc *sc; 2487 { 2488 u_int8_t cmd, status; 2489 2490 status = awi_read_1(sc, AWI_CMD_STATUS); 2491 if (status == AWI_STAT_IDLE) 2492 return; /* stray interrupt */ 2493 2494 cmd = sc->sc_cmd_inprog; 2495 sc->sc_cmd_inprog = 0; 2496 if (sc->sc_status == AWI_ST_INIT) { 2497 wakeup(sc); 2498 return; 2499 } 2500 awi_write_1(sc, AWI_CMD, 0); 2501 2502 if (status != AWI_STAT_OK) { 2503 printf("%s: command %d failed %x\n", 2504 sc->sc_dev.dv_xname, cmd, status); 2505 return; 2506 } 2507 switch (sc->sc_status) { 2508 case AWI_ST_SCAN: 2509 if (cmd == AWI_CMD_SET_MIB) 2510 awi_cmd_scan(sc); /* retry */ 2511 break; 2512 case AWI_ST_SETSS: 2513 awi_try_sync(sc); 2514 break; 2515 case AWI_ST_SYNC: 2516 awi_sync_done(sc); 2517 break; 2518 default: 2519 break; 2520 } 2521 } 2522 2523 static int 2524 awi_next_txd(sc, len, framep, ntxdp) 2525 struct awi_softc *sc; 2526 int len; 2527 u_int32_t *framep, *ntxdp; 2528 { 2529 u_int32_t txd, ntxd, frame; 2530 2531 txd = sc->sc_txnext; 2532 frame = txd + AWI_TXD_SIZE; 2533 if (frame + len > sc->sc_txend) 2534 frame = sc->sc_txbase; 2535 ntxd = frame + len; 2536 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 2537 ntxd = sc->sc_txbase; 2538 *framep = frame; 2539 *ntxdp = ntxd; 2540 /* 2541 * Determine if there are any room in ring buffer. 2542 * --- send wait, === new data, +++ conflict (ENOBUFS) 2543 * base........................end 2544 * done----txd=====ntxd OK 2545 * --txd=====done++++ntxd-- full 2546 * --txd=====ntxd done-- OK 2547 * ==ntxd done----txd=== OK 2548 * ==done++++ntxd----txd=== full 2549 * ++ntxd txd=====done++ full 2550 */ 2551 if (txd < ntxd) { 2552 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 2553 return ENOBUFS; 2554 } else { 2555 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 2556 return ENOBUFS; 2557 } 2558 return 0; 2559 } 2560 2561 static int 2562 awi_lock(sc) 2563 struct awi_softc *sc; 2564 { 2565 int error = 0; 2566 2567 if (curproc == NULL) { 2568 /* 2569 * XXX 2570 * Though driver ioctl should be called with context, 2571 * KAME ipv6 stack calls ioctl in interrupt for now. 2572 * We simply abort the request if there are other 2573 * ioctl requests in progress. 2574 */ 2575 if (sc->sc_busy) { 2576 return EWOULDBLOCK; 2577 if (sc->sc_invalid) 2578 return ENXIO; 2579 } 2580 sc->sc_busy = 1; 2581 sc->sc_cansleep = 0; 2582 return 0; 2583 } 2584 while (sc->sc_busy) { 2585 if (sc->sc_invalid) 2586 return ENXIO; 2587 sc->sc_sleep_cnt++; 2588 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 2589 sc->sc_sleep_cnt--; 2590 if (error) 2591 return error; 2592 } 2593 sc->sc_busy = 1; 2594 sc->sc_cansleep = 1; 2595 return 0; 2596 } 2597 2598 static void 2599 awi_unlock(sc) 2600 struct awi_softc *sc; 2601 { 2602 sc->sc_busy = 0; 2603 sc->sc_cansleep = 0; 2604 if (sc->sc_sleep_cnt) 2605 wakeup(sc); 2606 } 2607 2608 static int 2609 awi_intr_lock(sc) 2610 struct awi_softc *sc; 2611 { 2612 u_int8_t status; 2613 int i, retry; 2614 2615 status = 1; 2616 for (retry = 0; retry < 10; retry++) { 2617 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 2618 status = awi_read_1(sc, AWI_LOCKOUT_HOST); 2619 if (status == 0) 2620 break; 2621 DELAY(5); 2622 } 2623 if (status != 0) 2624 break; 2625 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 2626 status = awi_read_1(sc, AWI_LOCKOUT_HOST); 2627 if (status == 0) 2628 break; 2629 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 2630 } 2631 if (status != 0) { 2632 printf("%s: failed to lock interrupt\n", 2633 sc->sc_dev.dv_xname); 2634 return ENXIO; 2635 } 2636 return 0; 2637 } 2638 2639 static void 2640 awi_intr_unlock(sc) 2641 struct awi_softc *sc; 2642 { 2643 2644 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 2645 } 2646 2647 static int 2648 awi_cmd_wait(sc) 2649 struct awi_softc *sc; 2650 { 2651 int i, error = 0; 2652 2653 i = 0; 2654 while (sc->sc_cmd_inprog) { 2655 if (sc->sc_invalid) 2656 return ENXIO; 2657 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 2658 printf("%s: failed to access hardware\n", 2659 sc->sc_dev.dv_xname); 2660 sc->sc_invalid = 1; 2661 return ENXIO; 2662 } 2663 if (sc->sc_cansleep) { 2664 sc->sc_sleep_cnt++; 2665 error = tsleep(sc, PWAIT, "awicmd", 2666 AWI_CMD_TIMEOUT*hz/1000); 2667 sc->sc_sleep_cnt--; 2668 } else { 2669 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 2670 awi_cmd_done(sc); 2671 break; 2672 } 2673 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 2674 error = EWOULDBLOCK; 2675 else 2676 DELAY(10); 2677 } 2678 if (error) 2679 break; 2680 } 2681 return error; 2682 } 2683 2684 static void 2685 awi_print_essid(essid) 2686 u_int8_t *essid; 2687 { 2688 int i, len; 2689 u_int8_t *p; 2690 2691 len = essid[1]; 2692 if (len > IEEE80211_NWID_LEN) 2693 len = IEEE80211_NWID_LEN; /*XXX*/ 2694 /* determine printable or not */ 2695 for (i = 0, p = essid + 2; i < len; i++, p++) { 2696 if (*p < ' ' || *p > 0x7e) 2697 break; 2698 } 2699 if (i == len) { 2700 printf("\""); 2701 for (i = 0, p = essid + 2; i < len; i++, p++) 2702 printf("%c", *p); 2703 printf("\""); 2704 } else { 2705 printf("0x"); 2706 for (i = 0, p = essid + 2; i < len; i++, p++) 2707 printf("%02x", *p); 2708 } 2709 } 2710 2711 #ifdef AWI_DEBUG 2712 static void 2713 awi_dump_pkt(sc, m, rssi) 2714 struct awi_softc *sc; 2715 struct mbuf *m; 2716 int rssi; 2717 { 2718 struct ieee80211_frame *wh; 2719 int i, l; 2720 2721 wh = mtod(m, struct ieee80211_frame *); 2722 2723 if (awi_dump_mask != 0 && 2724 ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK)==IEEE80211_FC1_DIR_NODS) && 2725 ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK)==IEEE80211_FC0_TYPE_MGT)) { 2726 if ((AWI_DUMP_MASK(wh->i_fc[0]) & awi_dump_mask) != 0) 2727 return; 2728 } 2729 if (awi_dump_mask < 0 && 2730 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK)==IEEE80211_FC0_TYPE_DATA) 2731 return; 2732 2733 if (rssi < 0) 2734 printf("tx: "); 2735 else 2736 printf("rx: "); 2737 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 2738 case IEEE80211_FC1_DIR_NODS: 2739 printf("NODS %s", ether_sprintf(wh->i_addr2)); 2740 printf("->%s", ether_sprintf(wh->i_addr1)); 2741 printf("(%s)", ether_sprintf(wh->i_addr3)); 2742 break; 2743 case IEEE80211_FC1_DIR_TODS: 2744 printf("TODS %s", ether_sprintf(wh->i_addr2)); 2745 printf("->%s", ether_sprintf(wh->i_addr3)); 2746 printf("(%s)", ether_sprintf(wh->i_addr1)); 2747 break; 2748 case IEEE80211_FC1_DIR_FROMDS: 2749 printf("FRDS %s", ether_sprintf(wh->i_addr3)); 2750 printf("->%s", ether_sprintf(wh->i_addr1)); 2751 printf("(%s)", ether_sprintf(wh->i_addr2)); 2752 break; 2753 case IEEE80211_FC1_DIR_DSTODS: 2754 printf("DSDS %s", ether_sprintf((u_int8_t *)&wh[1])); 2755 printf("->%s", ether_sprintf(wh->i_addr3)); 2756 printf("(%s", ether_sprintf(wh->i_addr2)); 2757 printf("->%s)", ether_sprintf(wh->i_addr1)); 2758 break; 2759 } 2760 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 2761 case IEEE80211_FC0_TYPE_DATA: 2762 printf(" data"); 2763 break; 2764 case IEEE80211_FC0_TYPE_MGT: 2765 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 2766 case IEEE80211_FC0_SUBTYPE_PROBE_REQ: 2767 printf(" probe_req"); 2768 break; 2769 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 2770 printf(" probe_resp"); 2771 break; 2772 case IEEE80211_FC0_SUBTYPE_BEACON: 2773 printf(" beacon"); 2774 break; 2775 case IEEE80211_FC0_SUBTYPE_AUTH: 2776 printf(" auth"); 2777 break; 2778 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ: 2779 printf(" assoc_req"); 2780 break; 2781 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 2782 printf(" assoc_resp"); 2783 break; 2784 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ: 2785 printf(" reassoc_req"); 2786 break; 2787 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 2788 printf(" reassoc_resp"); 2789 break; 2790 case IEEE80211_FC0_SUBTYPE_DEAUTH: 2791 printf(" deauth"); 2792 break; 2793 case IEEE80211_FC0_SUBTYPE_DISASSOC: 2794 printf(" disassoc"); 2795 break; 2796 default: 2797 printf(" mgt#%d", 2798 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK); 2799 break; 2800 } 2801 break; 2802 default: 2803 printf(" type#%d", 2804 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 2805 break; 2806 } 2807 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 2808 printf(" WEP"); 2809 if (rssi >= 0) 2810 printf(" +%d", rssi); 2811 printf("\n"); 2812 if (awi_dump_len > 0) { 2813 l = m->m_len; 2814 if (l > awi_dump_len + sizeof(*wh)) 2815 l = awi_dump_len + sizeof(*wh); 2816 i = sizeof(*wh); 2817 if (awi_dump_hdr) 2818 i = 0; 2819 for (; i < l; i++) { 2820 if ((i & 1) == 0) 2821 printf(" "); 2822 printf("%02x", mtod(m, u_int8_t *)[i]); 2823 } 2824 printf("\n"); 2825 } 2826 } 2827 #endif 2828
Indexes created Sun Oct 19 02:09:48 GMT 2025