awi.c revision 1.33
1 /* $NetBSD: awi.c,v 1.33 2001/06/25 12:09:51 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 #if defined(__FreeBSD__) && __FreeBSD__ >= 4 107 #include <sys/bus.h> 108 #else 109 #include <sys/device.h> 110 #endif 111 112 #include <net/if.h> 113 #include <net/if_dl.h> 114 #ifdef __FreeBSD__ 115 #include <net/ethernet.h> 116 #else 117 #include <net/if_ether.h> 118 #endif 119 #include <net/if_media.h> 120 #include <net/if_llc.h> 121 #include <net/if_ieee80211.h> 122 123 #ifdef INET 124 #include <netinet/in.h> 125 #include <netinet/in_systm.h> 126 #ifdef __NetBSD__ 127 #include <netinet/if_inarp.h> 128 #else 129 #include <netinet/if_ether.h> 130 #endif 131 #endif 132 133 #if NBPFILTER > 0 134 #include <net/bpf.h> 135 #endif 136 137 #include <machine/cpu.h> 138 #include <machine/bus.h> 139 #ifdef __NetBSD__ 140 #include <machine/intr.h> 141 #endif 142 #ifdef __FreeBSD__ 143 #include <machine/clock.h> 144 #endif 145 146 #ifdef __NetBSD__ 147 #include <dev/ic/am79c930reg.h> 148 #include <dev/ic/am79c930var.h> 149 #include <dev/ic/awireg.h> 150 #include <dev/ic/awivar.h> 151 #endif 152 #ifdef __FreeBSD__ 153 #include <dev/awi/am79c930reg.h> 154 #include <dev/awi/am79c930var.h> 155 #include <dev/awi/awireg.h> 156 #include <dev/awi/awivar.h> 157 #endif 158 159 static int awi_ioctl __P((struct ifnet *ifp, u_long cmd, caddr_t data)); 160 #ifdef IFM_IEEE80211 161 static int awi_media_rate2opt __P((struct awi_softc *sc, int rate)); 162 static int awi_media_opt2rate __P((struct awi_softc *sc, int opt)); 163 static int awi_media_change __P((struct ifnet *ifp)); 164 static void awi_media_status __P((struct ifnet *ifp, struct ifmediareq *imr)); 165 #endif 166 static void awi_watchdog __P((struct ifnet *ifp)); 167 static void awi_start __P((struct ifnet *ifp)); 168 static void awi_txint __P((struct awi_softc *sc)); 169 static struct mbuf * awi_fix_txhdr __P((struct awi_softc *sc, struct mbuf *m0)); 170 static struct mbuf * awi_fix_rxhdr __P((struct awi_softc *sc, struct mbuf *m0)); 171 static void awi_input __P((struct awi_softc *sc, struct mbuf *m, u_int32_t rxts, u_int8_t rssi)); 172 static void awi_rxint __P((struct awi_softc *sc)); 173 static struct mbuf * awi_devget __P((struct awi_softc *sc, u_int32_t off, u_int16_t len)); 174 static int awi_init_hw __P((struct awi_softc *sc)); 175 static int awi_init_mibs __P((struct awi_softc *sc)); 176 static int awi_init_txrx __P((struct awi_softc *sc)); 177 static void awi_stop_txrx __P((struct awi_softc *sc)); 178 static int awi_start_scan __P((struct awi_softc *sc)); 179 static int awi_next_scan __P((struct awi_softc *sc)); 180 static void awi_stop_scan __P((struct awi_softc *sc)); 181 static void awi_recv_beacon __P((struct awi_softc *sc, struct mbuf *m0, u_int32_t rxts, u_int8_t rssi)); 182 static int awi_set_ss __P((struct awi_softc *sc)); 183 static void awi_try_sync __P((struct awi_softc *sc)); 184 static void awi_sync_done __P((struct awi_softc *sc)); 185 static void awi_send_deauth __P((struct awi_softc *sc)); 186 static void awi_send_auth __P((struct awi_softc *sc, int seq)); 187 static void awi_recv_auth __P((struct awi_softc *sc, struct mbuf *m0)); 188 static void awi_send_asreq __P((struct awi_softc *sc, int reassoc)); 189 static void awi_recv_asresp __P((struct awi_softc *sc, struct mbuf *m0)); 190 static int awi_mib __P((struct awi_softc *sc, u_int8_t cmd, u_int8_t mib)); 191 static int awi_cmd_scan __P((struct awi_softc *sc)); 192 static int awi_cmd __P((struct awi_softc *sc, u_int8_t cmd)); 193 static void awi_cmd_done __P((struct awi_softc *sc)); 194 static int awi_next_txd __P((struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t*ntxdp)); 195 static int awi_lock __P((struct awi_softc *sc)); 196 static void awi_unlock __P((struct awi_softc *sc)); 197 static int awi_intr_lock __P((struct awi_softc *sc)); 198 static void awi_intr_unlock __P((struct awi_softc *sc)); 199 static int awi_cmd_wait __P((struct awi_softc *sc)); 200 static void awi_print_essid __P((u_int8_t *essid)); 201 202 #ifdef AWI_DEBUG 203 static void awi_dump_pkt __P((struct awi_softc *sc, struct mbuf *m, int rssi)); 204 int awi_verbose = 0; 205 int awi_dump = 0; 206 #define AWI_DUMP_MASK(fc0) (1 << (((fc0) & IEEE80211_FC0_SUBTYPE_MASK) >> 4)) 207 int awi_dump_mask = AWI_DUMP_MASK(IEEE80211_FC0_SUBTYPE_BEACON); 208 int awi_dump_hdr = 0; 209 int awi_dump_len = 28; 210 #endif 211 212 #if NBPFILTER > 0 213 #define AWI_BPF_NORM 0 214 #define AWI_BPF_RAW 1 215 #ifdef __FreeBSD__ 216 #define AWI_BPF_MTAP(sc, m, raw) do { \ 217 if ((sc)->sc_ifp->if_bpf && (sc)->sc_rawbpf == (raw)) \ 218 bpf_mtap((sc)->sc_ifp, (m)); \ 219 } while (0); 220 #else 221 #define AWI_BPF_MTAP(sc, m, raw) do { \ 222 if ((sc)->sc_ifp->if_bpf && (sc)->sc_rawbpf == (raw)) \ 223 bpf_mtap((sc)->sc_ifp->if_bpf, (m)); \ 224 } while (0); 225 #endif 226 #else 227 #define AWI_BPF_MTAP(sc, m, raw) 228 #endif 229 230 #ifndef llc_snap 231 #define llc_snap llc_un.type_snap 232 #endif 233 234 #ifdef __FreeBSD__ 235 #if __FreeBSD__ >= 4 236 devclass_t awi_devclass; 237 #endif 238 239 /* NetBSD compatible functions */ 240 static char * ether_sprintf __P((u_int8_t *)); 241 242 static char * 243 ether_sprintf(enaddr) 244 u_int8_t *enaddr; 245 { 246 static char strbuf[18]; 247 248 sprintf(strbuf, "%6D", enaddr, ":"); 249 return strbuf; 250 } 251 #endif 252 253 int 254 awi_attach(sc) 255 struct awi_softc *sc; 256 { 257 struct ifnet *ifp = sc->sc_ifp; 258 int s; 259 int error; 260 #ifdef IFM_IEEE80211 261 int i; 262 u_int8_t *phy_rates; 263 int mword; 264 struct ifmediareq imr; 265 #endif 266 267 s = splnet(); 268 /* 269 * Even if we can sleep in initialization state, 270 * all other processes (e.g. ifconfig) have to wait for 271 * completion of attaching interface. 272 */ 273 sc->sc_busy = 1; 274 sc->sc_status = AWI_ST_INIT; 275 TAILQ_INIT(&sc->sc_scan); 276 error = awi_init_hw(sc); 277 if (error) { 278 sc->sc_invalid = 1; 279 splx(s); 280 return error; 281 } 282 error = awi_init_mibs(sc); 283 splx(s); 284 if (error) { 285 sc->sc_invalid = 1; 286 return error; 287 } 288 289 ifp->if_softc = sc; 290 ifp->if_start = awi_start; 291 ifp->if_ioctl = awi_ioctl; 292 ifp->if_watchdog = awi_watchdog; 293 ifp->if_mtu = ETHERMTU; 294 ifp->if_hdrlen = sizeof(struct ieee80211_frame) + 295 sizeof(struct ether_header); 296 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 297 #ifdef IFF_NOTRAILERS 298 ifp->if_flags |= IFF_NOTRAILERS; 299 #endif 300 #ifdef __NetBSD__ 301 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 302 #endif 303 #ifdef __FreeBSD__ 304 ifp->if_output = ether_output; 305 ifp->if_snd.ifq_maxlen = ifqmaxlen; 306 memcpy(sc->sc_ec.ac_enaddr, sc->sc_mib_addr.aMAC_Address, 307 ETHER_ADDR_LEN); 308 #endif 309 IFQ_SET_READY(&ifp->if_snd); 310 311 printf("%s: IEEE802.11 %s %dMbps (firmware %s)\n", 312 sc->sc_dev.dv_xname, 313 sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH ? "FH" : "DS", 314 sc->sc_tx_rate / 10, sc->sc_banner); 315 printf("%s: address %s\n", 316 sc->sc_dev.dv_xname, ether_sprintf(sc->sc_mib_addr.aMAC_Address)); 317 if_attach(ifp); 318 #ifdef __FreeBSD__ 319 ether_ifattach(ifp); 320 #if NBPFILTER > 0 321 bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header)); 322 #endif 323 #else 324 ether_ifattach(ifp, sc->sc_mib_addr.aMAC_Address); 325 #endif 326 327 #ifdef IFM_IEEE80211 328 ifmedia_init(&sc->sc_media, 0, awi_media_change, awi_media_status); 329 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 330 for (i = 0; i < phy_rates[1]; i++) { 331 mword = awi_media_rate2opt(sc, AWI_80211_RATE(phy_rates[2 + i])); 332 if (mword == 0) 333 continue; 334 mword |= IFM_IEEE80211; 335 ifmedia_add(&sc->sc_media, mword, 0, NULL); 336 ifmedia_add(&sc->sc_media, 337 mword | IFM_IEEE80211_ADHOC, 0, NULL); 338 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 339 ifmedia_add(&sc->sc_media, 340 mword | IFM_IEEE80211_ADHOC | IFM_FLAG0, 0, NULL); 341 } 342 awi_media_status(ifp, &imr); 343 ifmedia_set(&sc->sc_media, imr.ifm_active); 344 #endif 345 346 /* ready to accept ioctl */ 347 awi_unlock(sc); 348 349 /* Attach is successful. */ 350 sc->sc_attached = 1; 351 return 0; 352 } 353 354 #ifdef __NetBSD__ 355 int 356 awi_detach(sc) 357 struct awi_softc *sc; 358 { 359 struct ifnet *ifp = sc->sc_ifp; 360 int s; 361 362 /* Succeed if there is no work to do. */ 363 if (!sc->sc_attached) 364 return (0); 365 366 s = splnet(); 367 sc->sc_invalid = 1; 368 awi_stop(sc); 369 while (sc->sc_sleep_cnt > 0) { 370 wakeup(sc); 371 (void)tsleep(sc, PWAIT, "awidet", 1); 372 } 373 if (sc->sc_wep_ctx != NULL) 374 free(sc->sc_wep_ctx, M_DEVBUF); 375 #ifdef IFM_IEEE80211 376 ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY); 377 #endif 378 ether_ifdetach(ifp); 379 if_detach(ifp); 380 if (sc->sc_enabled) { 381 if (sc->sc_disable) 382 (*sc->sc_disable)(sc); 383 sc->sc_enabled = 0; 384 } 385 splx(s); 386 return 0; 387 } 388 389 int 390 awi_activate(self, act) 391 struct device *self; 392 enum devact act; 393 { 394 struct awi_softc *sc = (struct awi_softc *)self; 395 int s, error = 0; 396 397 s = splnet(); 398 switch (act) { 399 case DVACT_ACTIVATE: 400 error = EOPNOTSUPP; 401 break; 402 403 case DVACT_DEACTIVATE: 404 sc->sc_invalid = 1; 405 if (sc->sc_ifp) 406 if_deactivate(sc->sc_ifp); 407 break; 408 } 409 splx(s); 410 411 return error; 412 } 413 414 void 415 awi_power(sc, why) 416 struct awi_softc *sc; 417 int why; 418 { 419 int s; 420 int ocansleep; 421 422 if (!sc->sc_enabled) 423 return; 424 425 s = splnet(); 426 ocansleep = sc->sc_cansleep; 427 sc->sc_cansleep = 0; 428 #ifdef needtobefixed /*ONOE*/ 429 switch (why) { 430 case PWR_SUSPEND: 431 case PWR_STANDBY: 432 awi_stop(sc); 433 if (sc->sc_disable) 434 (*sc->sc_disable)(sc); 435 break; 436 case PWR_RESUME: 437 sc->sc_enabled = 0; 438 awi_init(sc); 439 (void)awi_intr(sc); 440 break; 441 case PWR_SOFTSUSPEND: 442 case PWR_SOFTSTANDBY: 443 case PWR_SOFTRESUME: 444 break; 445 } 446 #endif 447 sc->sc_cansleep = ocansleep; 448 splx(s); 449 } 450 #endif /* __NetBSD__ */ 451 452 static int 453 awi_ioctl(ifp, cmd, data) 454 struct ifnet *ifp; 455 u_long cmd; 456 caddr_t data; 457 { 458 struct awi_softc *sc = ifp->if_softc; 459 struct ifreq *ifr = (struct ifreq *)data; 460 struct ifaddr *ifa = (struct ifaddr *)data; 461 int s, error; 462 struct ieee80211_nwid nwid; 463 u_int8_t *p; 464 465 s = splnet(); 466 467 /* serialize ioctl */ 468 error = awi_lock(sc); 469 if (error) 470 goto cantlock; 471 switch (cmd) { 472 case SIOCSIFADDR: 473 ifp->if_flags |= IFF_UP; 474 switch (ifa->ifa_addr->sa_family) { 475 #ifdef INET 476 case AF_INET: 477 arp_ifinit((void *)ifp, ifa); 478 break; 479 #endif 480 } 481 /* FALLTHROUGH */ 482 case SIOCSIFFLAGS: 483 sc->sc_format_llc = !(ifp->if_flags & IFF_LINK0); 484 if (!(ifp->if_flags & IFF_UP)) { 485 if (sc->sc_enabled) { 486 awi_stop(sc); 487 if (sc->sc_disable) 488 (*sc->sc_disable)(sc); 489 sc->sc_enabled = 0; 490 } 491 break; 492 } 493 error = awi_init(sc); 494 break; 495 496 case SIOCADDMULTI: 497 case SIOCDELMULTI: 498 #ifdef __FreeBSD__ 499 error = ENETRESET; /*XXX*/ 500 #else 501 error = (cmd == SIOCADDMULTI) ? 502 ether_addmulti(ifr, &sc->sc_ec) : 503 ether_delmulti(ifr, &sc->sc_ec); 504 #endif 505 /* 506 * Do not rescan BSS. Rather, just reset multicast filter. 507 */ 508 if (error == ENETRESET) { 509 if (sc->sc_enabled) 510 error = awi_init(sc); 511 else 512 error = 0; 513 } 514 break; 515 case SIOCSIFMTU: 516 if (ifr->ifr_mtu > ETHERMTU) 517 error = EINVAL; 518 else 519 ifp->if_mtu = ifr->ifr_mtu; 520 break; 521 case SIOCS80211NWID: 522 error = copyin(ifr->ifr_data, &nwid, sizeof(nwid)); 523 if (error) 524 break; 525 if (nwid.i_len > IEEE80211_NWID_LEN) { 526 error = EINVAL; 527 break; 528 } 529 if (sc->sc_mib_mac.aDesired_ESS_ID[1] == nwid.i_len && 530 memcmp(&sc->sc_mib_mac.aDesired_ESS_ID[2], nwid.i_nwid, 531 nwid.i_len) == 0) 532 break; 533 memset(sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 534 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 535 sc->sc_mib_mac.aDesired_ESS_ID[1] = nwid.i_len; 536 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], nwid.i_nwid, 537 nwid.i_len); 538 if (sc->sc_enabled) { 539 awi_stop(sc); 540 error = awi_init(sc); 541 } 542 break; 543 case SIOCG80211NWID: 544 if (ifp->if_flags & IFF_RUNNING) 545 p = sc->sc_bss.essid; 546 else 547 p = sc->sc_mib_mac.aDesired_ESS_ID; 548 error = copyout(p + 1, ifr->ifr_data, 1 + IEEE80211_NWID_LEN); 549 break; 550 case SIOCS80211NWKEY: 551 error = awi_wep_setnwkey(sc, (struct ieee80211_nwkey *)data); 552 break; 553 case SIOCG80211NWKEY: 554 error = awi_wep_getnwkey(sc, (struct ieee80211_nwkey *)data); 555 break; 556 #ifdef IFM_IEEE80211 557 case SIOCSIFMEDIA: 558 case SIOCGIFMEDIA: 559 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 560 break; 561 #endif 562 default: 563 error = awi_wicfg(ifp, cmd, data); 564 break; 565 } 566 awi_unlock(sc); 567 cantlock: 568 splx(s); 569 return error; 570 } 571 572 #ifdef IFM_IEEE80211 573 static int 574 awi_media_rate2opt(sc, rate) 575 struct awi_softc *sc; 576 int rate; 577 { 578 int mword; 579 580 mword = 0; 581 switch (rate) { 582 case 10: 583 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 584 mword = IFM_IEEE80211_FH1; 585 else 586 mword = IFM_IEEE80211_DS1; 587 break; 588 case 20: 589 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 590 mword = IFM_IEEE80211_FH2; 591 else 592 mword = IFM_IEEE80211_DS2; 593 break; 594 case 55: 595 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 596 mword = IFM_IEEE80211_DS5; 597 break; 598 case 110: 599 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 600 mword = IFM_IEEE80211_DS11; 601 break; 602 } 603 return mword; 604 } 605 606 static int 607 awi_media_opt2rate(sc, opt) 608 struct awi_softc *sc; 609 int opt; 610 { 611 int rate; 612 613 rate = 0; 614 switch (IFM_SUBTYPE(opt)) { 615 case IFM_IEEE80211_FH1: 616 case IFM_IEEE80211_FH2: 617 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 618 return 0; 619 break; 620 case IFM_IEEE80211_DS1: 621 case IFM_IEEE80211_DS2: 622 case IFM_IEEE80211_DS5: 623 case IFM_IEEE80211_DS11: 624 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_DS) 625 return 0; 626 break; 627 } 628 629 switch (IFM_SUBTYPE(opt)) { 630 case IFM_IEEE80211_FH1: 631 case IFM_IEEE80211_DS1: 632 rate = 10; 633 break; 634 case IFM_IEEE80211_FH2: 635 case IFM_IEEE80211_DS2: 636 rate = 20; 637 break; 638 case IFM_IEEE80211_DS5: 639 rate = 55; 640 break; 641 case IFM_IEEE80211_DS11: 642 rate = 110; 643 break; 644 } 645 return rate; 646 } 647 648 /* 649 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 650 */ 651 static int 652 awi_media_change(ifp) 653 struct ifnet *ifp; 654 { 655 struct awi_softc *sc = ifp->if_softc; 656 struct ifmedia_entry *ime; 657 u_int8_t *phy_rates; 658 int i, rate, error; 659 660 error = 0; 661 ime = sc->sc_media.ifm_cur; 662 rate = awi_media_opt2rate(sc, ime->ifm_media); 663 if (rate == 0) 664 return EINVAL; 665 if (rate != sc->sc_tx_rate) { 666 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 667 for (i = 0; i < phy_rates[1]; i++) { 668 if (rate == AWI_80211_RATE(phy_rates[2 + i])) 669 break; 670 } 671 if (i == phy_rates[1]) 672 return EINVAL; 673 } 674 if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 675 sc->sc_mib_local.Network_Mode = 0; 676 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 677 sc->sc_no_bssid = 0; 678 else 679 sc->sc_no_bssid = (ime->ifm_media & IFM_FLAG0) ? 1 : 0; 680 } else { 681 sc->sc_mib_local.Network_Mode = 1; 682 } 683 if (sc->sc_enabled) { 684 awi_stop(sc); 685 error = awi_init(sc); 686 } 687 return error; 688 } 689 690 static void 691 awi_media_status(ifp, imr) 692 struct ifnet *ifp; 693 struct ifmediareq *imr; 694 { 695 struct awi_softc *sc = ifp->if_softc; 696 697 imr->ifm_status = IFM_AVALID; 698 if (ifp->if_flags & IFF_RUNNING) 699 imr->ifm_status |= IFM_ACTIVE; 700 imr->ifm_active = IFM_IEEE80211; 701 imr->ifm_active |= awi_media_rate2opt(sc, sc->sc_tx_rate); 702 if (sc->sc_mib_local.Network_Mode == 0) { 703 imr->ifm_active |= IFM_IEEE80211_ADHOC; 704 if (sc->sc_no_bssid) 705 imr->ifm_active |= IFM_FLAG0; 706 } 707 } 708 #endif /* IFM_IEEE80211 */ 709 710 int 711 awi_intr(arg) 712 void *arg; 713 { 714 struct awi_softc *sc = arg; 715 u_int16_t status; 716 int error, handled = 0, ocansleep; 717 718 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) 719 return 0; 720 721 am79c930_gcr_setbits(&sc->sc_chip, 722 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 723 awi_write_1(sc, AWI_DIS_PWRDN, 1); 724 ocansleep = sc->sc_cansleep; 725 sc->sc_cansleep = 0; 726 727 for (;;) { 728 error = awi_intr_lock(sc); 729 if (error) 730 break; 731 status = awi_read_1(sc, AWI_INTSTAT); 732 awi_write_1(sc, AWI_INTSTAT, 0); 733 awi_write_1(sc, AWI_INTSTAT, 0); 734 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 735 awi_write_1(sc, AWI_INTSTAT2, 0); 736 DELAY(10); 737 awi_intr_unlock(sc); 738 if (!sc->sc_cmd_inprog) 739 status &= ~AWI_INT_CMD; /* make sure */ 740 if (status == 0) 741 break; 742 handled = 1; 743 if (status & AWI_INT_RX) 744 awi_rxint(sc); 745 if (status & AWI_INT_TX) 746 awi_txint(sc); 747 if (status & AWI_INT_CMD) 748 awi_cmd_done(sc); 749 if (status & AWI_INT_SCAN_CMPLT) { 750 if (sc->sc_status == AWI_ST_SCAN && 751 sc->sc_mgt_timer > 0) 752 (void)awi_next_scan(sc); 753 } 754 } 755 sc->sc_cansleep = ocansleep; 756 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 757 awi_write_1(sc, AWI_DIS_PWRDN, 0); 758 return handled; 759 } 760 761 int 762 awi_init(sc) 763 struct awi_softc *sc; 764 { 765 int error, ostatus; 766 int n; 767 struct ifnet *ifp = sc->sc_ifp; 768 #ifdef __FreeBSD__ 769 struct ifmultiaddr *ifma; 770 #else 771 struct ether_multi *enm; 772 struct ether_multistep step; 773 #endif 774 775 /* reinitialize muticast filter */ 776 n = 0; 777 ifp->if_flags |= IFF_ALLMULTI; 778 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 779 if (ifp->if_flags & IFF_PROMISC) { 780 sc->sc_mib_mac.aPromiscuous_Enable = 1; 781 goto set_mib; 782 } 783 sc->sc_mib_mac.aPromiscuous_Enable = 0; 784 #ifdef __FreeBSD__ 785 if (ifp->if_amcount != 0) 786 goto set_mib; 787 for (ifma = LIST_FIRST(&ifp->if_multiaddrs); ifma != NULL; 788 ifma = LIST_NEXT(ifma, ifma_link)) { 789 if (ifma->ifma_addr->sa_family != AF_LINK) 790 continue; 791 if (n == AWI_GROUP_ADDR_SIZE) 792 goto set_mib; 793 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], 794 LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 795 ETHER_ADDR_LEN); 796 n++; 797 } 798 #else 799 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 800 while (enm != NULL) { 801 if (n == AWI_GROUP_ADDR_SIZE || 802 memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN) 803 != 0) 804 goto set_mib; 805 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], enm->enm_addrlo, 806 ETHER_ADDR_LEN); 807 n++; 808 ETHER_NEXT_MULTI(step, enm); 809 } 810 #endif 811 for (; n < AWI_GROUP_ADDR_SIZE; n++) 812 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, ETHER_ADDR_LEN); 813 ifp->if_flags &= ~IFF_ALLMULTI; 814 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 815 816 set_mib: 817 #ifdef notdef /* allow non-encrypted frame for receiving. */ 818 sc->sc_mib_mgt.Wep_Required = sc->sc_wep_algo != NULL ? 1 : 0; 819 #endif 820 if (!sc->sc_enabled) { 821 sc->sc_enabled = 1; 822 if (sc->sc_enable) 823 (*sc->sc_enable)(sc); 824 sc->sc_status = AWI_ST_INIT; 825 error = awi_init_hw(sc); 826 if (error) 827 return error; 828 } 829 ostatus = sc->sc_status; 830 sc->sc_status = AWI_ST_INIT; 831 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL)) != 0 || 832 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR)) != 0 || 833 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC)) != 0 || 834 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT)) != 0 || 835 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY)) != 0) { 836 awi_stop(sc); 837 return error; 838 } 839 if (ifp->if_flags & IFF_RUNNING) 840 sc->sc_status = AWI_ST_RUNNING; 841 else { 842 if (ostatus == AWI_ST_INIT) { 843 error = awi_init_txrx(sc); 844 if (error) 845 return error; 846 } 847 error = awi_start_scan(sc); 848 } 849 return error; 850 } 851 852 void 853 awi_stop(sc) 854 struct awi_softc *sc; 855 { 856 struct ifnet *ifp = sc->sc_ifp; 857 struct awi_bss *bp; 858 859 sc->sc_status = AWI_ST_INIT; 860 if (!sc->sc_invalid) { 861 (void)awi_cmd_wait(sc); 862 if (sc->sc_mib_local.Network_Mode && 863 sc->sc_status > AWI_ST_AUTH) 864 awi_send_deauth(sc); 865 awi_stop_txrx(sc); 866 } 867 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 868 ifp->if_timer = 0; 869 sc->sc_tx_timer = sc->sc_rx_timer = sc->sc_mgt_timer = 0; 870 IF_PURGE(&sc->sc_mgtq); 871 IFQ_PURGE(&ifp->if_snd); 872 while ((bp = TAILQ_FIRST(&sc->sc_scan)) != NULL) { 873 TAILQ_REMOVE(&sc->sc_scan, bp, list); 874 free(bp, M_DEVBUF); 875 } 876 } 877 878 static void 879 awi_watchdog(ifp) 880 struct ifnet *ifp; 881 { 882 struct awi_softc *sc = ifp->if_softc; 883 int ocansleep; 884 885 if (sc->sc_invalid) { 886 ifp->if_timer = 0; 887 return; 888 } 889 890 ocansleep = sc->sc_cansleep; 891 sc->sc_cansleep = 0; 892 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 893 printf("%s: transmit timeout\n", sc->sc_dev.dv_xname); 894 awi_txint(sc); 895 } 896 if (sc->sc_rx_timer && --sc->sc_rx_timer == 0) { 897 if (ifp->if_flags & IFF_DEBUG) { 898 printf("%s: no recent beacons from %s; rescanning\n", 899 sc->sc_dev.dv_xname, 900 ether_sprintf(sc->sc_bss.bssid)); 901 } 902 ifp->if_flags &= ~IFF_RUNNING; 903 awi_start_scan(sc); 904 } 905 if (sc->sc_mgt_timer && --sc->sc_mgt_timer == 0) { 906 switch (sc->sc_status) { 907 case AWI_ST_SCAN: 908 awi_stop_scan(sc); 909 break; 910 case AWI_ST_AUTH: 911 case AWI_ST_ASSOC: 912 /* restart scan */ 913 awi_start_scan(sc); 914 break; 915 default: 916 break; 917 } 918 } 919 920 if (sc->sc_tx_timer == 0 && sc->sc_rx_timer == 0 && 921 sc->sc_mgt_timer == 0) 922 ifp->if_timer = 0; 923 else 924 ifp->if_timer = 1; 925 sc->sc_cansleep = ocansleep; 926 } 927 928 static void 929 awi_start(ifp) 930 struct ifnet *ifp; 931 { 932 struct awi_softc *sc = ifp->if_softc; 933 struct mbuf *m0, *m; 934 u_int32_t txd, frame, ntxd; 935 u_int8_t rate; 936 int len, sent = 0; 937 938 for (;;) { 939 txd = sc->sc_txnext; 940 IF_POLL(&sc->sc_mgtq, m0); 941 if (m0 != NULL) { 942 if (awi_next_txd(sc, m0->m_pkthdr.len, &frame, &ntxd)) { 943 ifp->if_flags |= IFF_OACTIVE; 944 break; 945 } 946 IF_DEQUEUE(&sc->sc_mgtq, m0); 947 #ifdef AWI_DEBUG 948 if (awi_dump) 949 awi_dump_pkt(sc, m0, -1); 950 #endif 951 } else { 952 if (!(ifp->if_flags & IFF_RUNNING)) 953 break; 954 IFQ_POLL(&ifp->if_snd, m0); 955 if (m0 == NULL) 956 break; 957 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 958 if (sc->sc_format_llc) 959 len += sizeof(struct llc) - 960 sizeof(struct ether_header); 961 if (sc->sc_wep_algo != NULL) 962 len += IEEE80211_WEP_IVLEN + 963 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 964 if (awi_next_txd(sc, len, &frame, &ntxd)) { 965 ifp->if_flags |= IFF_OACTIVE; 966 break; 967 } 968 IFQ_DEQUEUE(&ifp->if_snd, m0); 969 AWI_BPF_MTAP(sc, m0, AWI_BPF_NORM); 970 m0 = awi_fix_txhdr(sc, m0); 971 #ifdef AWI_DEBUG 972 if (awi_dump) 973 awi_dump_pkt(sc, m0, -1); 974 #endif 975 if (sc->sc_wep_algo != NULL && m0 != NULL) 976 m0 = awi_wep_encrypt(sc, m0, 1); 977 if (m0 == NULL) { 978 ifp->if_oerrors++; 979 continue; 980 } 981 ifp->if_opackets++; 982 } 983 AWI_BPF_MTAP(sc, m0, AWI_BPF_RAW); 984 len = 0; 985 for (m = m0; m != NULL; m = m->m_next) { 986 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 987 m->m_len); 988 len += m->m_len; 989 } 990 m_freem(m0); 991 rate = sc->sc_tx_rate; /*XXX*/ 992 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 993 awi_write_4(sc, txd + AWI_TXD_START, frame); 994 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 995 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 996 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 997 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 998 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 999 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 1000 sc->sc_txnext = ntxd; 1001 sent++; 1002 } 1003 if (sent) { 1004 if (sc->sc_tx_timer == 0) 1005 sc->sc_tx_timer = 5; 1006 ifp->if_timer = 1; 1007 #ifdef AWI_DEBUG 1008 if (awi_verbose) 1009 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); 1010 #endif 1011 } 1012 } 1013 1014 static void 1015 awi_txint(sc) 1016 struct awi_softc *sc; 1017 { 1018 struct ifnet *ifp = sc->sc_ifp; 1019 u_int8_t flags; 1020 1021 while (sc->sc_txdone != sc->sc_txnext) { 1022 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1023 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1024 break; 1025 if (flags & AWI_TXD_ST_ERROR) 1026 ifp->if_oerrors++; 1027 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1028 0x7fff; 1029 } 1030 sc->sc_tx_timer = 0; 1031 ifp->if_flags &= ~IFF_OACTIVE; 1032 #ifdef AWI_DEBUG 1033 if (awi_verbose) 1034 printf("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1035 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend); 1036 #endif 1037 awi_start(ifp); 1038 } 1039 1040 static struct mbuf * 1041 awi_fix_txhdr(sc, m0) 1042 struct awi_softc *sc; 1043 struct mbuf *m0; 1044 { 1045 struct ether_header eh; 1046 struct ieee80211_frame *wh; 1047 struct llc *llc; 1048 1049 if (m0->m_len < sizeof(eh)) { 1050 m0 = m_pullup(m0, sizeof(eh)); 1051 if (m0 == NULL) 1052 return NULL; 1053 } 1054 memcpy(&eh, mtod(m0, caddr_t), sizeof(eh)); 1055 if (sc->sc_format_llc) { 1056 m_adj(m0, sizeof(struct ether_header) - sizeof(struct llc)); 1057 llc = mtod(m0, struct llc *); 1058 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 1059 llc->llc_control = LLC_UI; 1060 llc->llc_snap.org_code[0] = llc->llc_snap.org_code[1] = 1061 llc->llc_snap.org_code[2] = 0; 1062 llc->llc_snap.ether_type = eh.ether_type; 1063 } 1064 M_PREPEND(m0, sizeof(struct ieee80211_frame), M_DONTWAIT); 1065 if (m0 == NULL) 1066 return NULL; 1067 wh = mtod(m0, struct ieee80211_frame *); 1068 1069 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 1070 LE_WRITE_2(wh->i_dur, 0); 1071 LE_WRITE_2(wh->i_seq, 0); 1072 if (sc->sc_mib_local.Network_Mode) { 1073 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 1074 memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN); 1075 memcpy(wh->i_addr2, eh.ether_shost, ETHER_ADDR_LEN); 1076 memcpy(wh->i_addr3, eh.ether_dhost, ETHER_ADDR_LEN); 1077 } else { 1078 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1079 memcpy(wh->i_addr1, eh.ether_dhost, ETHER_ADDR_LEN); 1080 memcpy(wh->i_addr2, eh.ether_shost, ETHER_ADDR_LEN); 1081 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 1082 } 1083 return m0; 1084 } 1085 1086 static struct mbuf * 1087 awi_fix_rxhdr(sc, m0) 1088 struct awi_softc *sc; 1089 struct mbuf *m0; 1090 { 1091 struct ieee80211_frame wh; 1092 struct ether_header *eh; 1093 struct llc *llc; 1094 1095 if (m0->m_len < sizeof(wh)) { 1096 m_freem(m0); 1097 return NULL; 1098 } 1099 llc = (struct llc *)(mtod(m0, caddr_t) + sizeof(wh)); 1100 if (llc->llc_dsap == LLC_SNAP_LSAP && 1101 llc->llc_ssap == LLC_SNAP_LSAP && 1102 llc->llc_control == LLC_UI && 1103 llc->llc_snap.org_code[0] == 0 && 1104 llc->llc_snap.org_code[1] == 0 && 1105 llc->llc_snap.org_code[2] == 0) { 1106 memcpy(&wh, mtod(m0, caddr_t), sizeof(wh)); 1107 m_adj(m0, sizeof(wh) + sizeof(*llc) - sizeof(*eh)); 1108 eh = mtod(m0, struct ether_header *); 1109 switch (wh.i_fc[1] & IEEE80211_FC1_DIR_MASK) { 1110 case IEEE80211_FC1_DIR_NODS: 1111 memcpy(eh->ether_dhost, wh.i_addr1, ETHER_ADDR_LEN); 1112 memcpy(eh->ether_shost, wh.i_addr2, ETHER_ADDR_LEN); 1113 break; 1114 case IEEE80211_FC1_DIR_TODS: 1115 memcpy(eh->ether_dhost, wh.i_addr3, ETHER_ADDR_LEN); 1116 memcpy(eh->ether_shost, wh.i_addr2, ETHER_ADDR_LEN); 1117 break; 1118 case IEEE80211_FC1_DIR_FROMDS: 1119 memcpy(eh->ether_dhost, wh.i_addr1, ETHER_ADDR_LEN); 1120 memcpy(eh->ether_shost, wh.i_addr3, ETHER_ADDR_LEN); 1121 break; 1122 case IEEE80211_FC1_DIR_DSTODS: 1123 m_freem(m0); 1124 return NULL; 1125 } 1126 } else { 1127 /* assuming ethernet encapsulation, just strip 802.11 header */ 1128 m_adj(m0, sizeof(wh)); 1129 } 1130 if (ALIGN(mtod(m0, caddr_t) + sizeof(struct ether_header)) != 1131 (u_int)(mtod(m0, caddr_t) + sizeof(struct ether_header))) { 1132 /* XXX: we loose to estimate the type of encapsulation */ 1133 struct mbuf *n, *n0, **np; 1134 caddr_t newdata; 1135 int off; 1136 1137 n0 = NULL; 1138 np = &n0; 1139 off = 0; 1140 while (m0->m_pkthdr.len > off) { 1141 if (n0 == NULL) { 1142 MGETHDR(n, M_DONTWAIT, MT_DATA); 1143 if (n == NULL) { 1144 m_freem(m0); 1145 return NULL; 1146 } 1147 M_COPY_PKTHDR(n, m0); 1148 n->m_len = MHLEN; 1149 } else { 1150 MGET(n, M_DONTWAIT, MT_DATA); 1151 if (n == NULL) { 1152 m_freem(m0); 1153 m_freem(n0); 1154 return NULL; 1155 } 1156 n->m_len = MLEN; 1157 } 1158 if (m0->m_pkthdr.len - off >= MINCLSIZE) { 1159 MCLGET(n, M_DONTWAIT); 1160 if (n->m_flags & M_EXT) 1161 n->m_len = n->m_ext.ext_size; 1162 } 1163 if (n0 == NULL) { 1164 newdata = (caddr_t) 1165 ALIGN(n->m_data 1166 + sizeof(struct ether_header)) 1167 - sizeof(struct ether_header); 1168 n->m_len -= newdata - n->m_data; 1169 n->m_data = newdata; 1170 } 1171 if (n->m_len > m0->m_pkthdr.len - off) 1172 n->m_len = m0->m_pkthdr.len - off; 1173 m_copydata(m0, off, n->m_len, mtod(n, caddr_t)); 1174 off += n->m_len; 1175 *np = n; 1176 np = &n->m_next; 1177 } 1178 m_freem(m0); 1179 m0 = n0; 1180 } 1181 return m0; 1182 } 1183 1184 static void 1185 awi_input(sc, m, rxts, rssi) 1186 struct awi_softc *sc; 1187 struct mbuf *m; 1188 u_int32_t rxts; 1189 u_int8_t rssi; 1190 { 1191 struct ifnet *ifp = sc->sc_ifp; 1192 struct ieee80211_frame *wh; 1193 #ifndef __NetBSD__ 1194 struct ether_header *eh; 1195 #endif 1196 1197 /* trim CRC here for WEP can find its own CRC at the end of packet. */ 1198 m_adj(m, -ETHER_CRC_LEN); 1199 AWI_BPF_MTAP(sc, m, AWI_BPF_RAW); 1200 wh = mtod(m, struct ieee80211_frame *); 1201 if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) != 1202 IEEE80211_FC0_VERSION_0) { 1203 printf("%s; receive packet with wrong version: %x\n", 1204 sc->sc_dev.dv_xname, wh->i_fc[0]); 1205 m_freem(m); 1206 ifp->if_ierrors++; 1207 return; 1208 } 1209 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1210 m = awi_wep_encrypt(sc, m, 0); 1211 if (m == NULL) { 1212 ifp->if_ierrors++; 1213 return; 1214 } 1215 wh = mtod(m, struct ieee80211_frame *); 1216 } 1217 #ifdef AWI_DEBUG 1218 if (awi_dump) 1219 awi_dump_pkt(sc, m, rssi); 1220 #endif 1221 1222 if ((sc->sc_mib_local.Network_Mode || !sc->sc_no_bssid) && 1223 sc->sc_status == AWI_ST_RUNNING) { 1224 if (memcmp(wh->i_addr2, sc->sc_bss.bssid, ETHER_ADDR_LEN) == 0) { 1225 sc->sc_rx_timer = 10; 1226 sc->sc_bss.rssi = rssi; 1227 } 1228 } 1229 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 1230 case IEEE80211_FC0_TYPE_DATA: 1231 if (sc->sc_mib_local.Network_Mode) { 1232 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1233 IEEE80211_FC1_DIR_FROMDS) { 1234 m_freem(m); 1235 return; 1236 } 1237 } else { 1238 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1239 IEEE80211_FC1_DIR_NODS) { 1240 m_freem(m); 1241 return; 1242 } 1243 } 1244 m = awi_fix_rxhdr(sc, m); 1245 if (m == NULL) { 1246 ifp->if_ierrors++; 1247 break; 1248 } 1249 ifp->if_ipackets++; 1250 #if !(defined(__FreeBSD__) && __FreeBSD__ >= 4) 1251 AWI_BPF_MTAP(sc, m, AWI_BPF_NORM); 1252 #endif 1253 #ifdef __NetBSD__ 1254 (*ifp->if_input)(ifp, m); 1255 #else 1256 eh = mtod(m, struct ether_header *); 1257 m_adj(m, sizeof(*eh)); 1258 ether_input(ifp, eh, m); 1259 #endif 1260 break; 1261 case IEEE80211_FC0_TYPE_MGT: 1262 if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != 1263 IEEE80211_FC1_DIR_NODS) { 1264 m_freem(m); 1265 return; 1266 } 1267 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 1268 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 1269 case IEEE80211_FC0_SUBTYPE_BEACON: 1270 awi_recv_beacon(sc, m, rxts, rssi); 1271 break; 1272 case IEEE80211_FC0_SUBTYPE_AUTH: 1273 awi_recv_auth(sc, m); 1274 break; 1275 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 1276 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 1277 awi_recv_asresp(sc, m); 1278 break; 1279 case IEEE80211_FC0_SUBTYPE_DEAUTH: 1280 if (sc->sc_mib_local.Network_Mode) 1281 awi_send_auth(sc, 1); 1282 break; 1283 case IEEE80211_FC0_SUBTYPE_DISASSOC: 1284 if (sc->sc_mib_local.Network_Mode) 1285 awi_send_asreq(sc, 1); 1286 break; 1287 } 1288 m_freem(m); 1289 break; 1290 case IEEE80211_FC0_TYPE_CTL: 1291 default: 1292 /* should not come here */ 1293 m_freem(m); 1294 break; 1295 } 1296 } 1297 1298 static void 1299 awi_rxint(sc) 1300 struct awi_softc *sc; 1301 { 1302 u_int8_t state, rate, rssi; 1303 u_int16_t len; 1304 u_int32_t frame, next, rxts, rxoff; 1305 struct mbuf *m; 1306 1307 rxoff = sc->sc_rxdoff; 1308 for (;;) { 1309 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1310 if (state & AWI_RXD_ST_OWN) 1311 break; 1312 if (!(state & AWI_RXD_ST_CONSUMED)) { 1313 if (state & AWI_RXD_ST_RXERROR) 1314 sc->sc_ifp->if_ierrors++; 1315 else { 1316 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1317 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1318 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1319 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 0x7fff; 1320 rxts = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1321 m = awi_devget(sc, frame, len); 1322 if (state & AWI_RXD_ST_LF) 1323 awi_input(sc, m, rxts, rssi); 1324 else 1325 sc->sc_rxpend = m; 1326 } 1327 state |= AWI_RXD_ST_CONSUMED; 1328 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1329 } 1330 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1331 if (next & AWI_RXD_NEXT_LAST) 1332 break; 1333 /* make sure the next pointer is correct */ 1334 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1335 break; 1336 state |= AWI_RXD_ST_OWN; 1337 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1338 rxoff = next & 0x7fff; 1339 } 1340 sc->sc_rxdoff = rxoff; 1341 } 1342 1343 static struct mbuf * 1344 awi_devget(sc, off, len) 1345 struct awi_softc *sc; 1346 u_int32_t off; 1347 u_int16_t len; 1348 { 1349 struct mbuf *m; 1350 struct mbuf *top, **mp; 1351 u_int tlen; 1352 1353 top = sc->sc_rxpend; 1354 mp = ⊤ 1355 if (top != NULL) { 1356 sc->sc_rxpend = NULL; 1357 top->m_pkthdr.len += len; 1358 m = top; 1359 while (*mp != NULL) { 1360 m = *mp; 1361 mp = &m->m_next; 1362 } 1363 if (m->m_flags & M_EXT) 1364 tlen = m->m_ext.ext_size; 1365 else if (m->m_flags & M_PKTHDR) 1366 tlen = MHLEN; 1367 else 1368 tlen = MLEN; 1369 tlen -= m->m_len; 1370 if (tlen > len) 1371 tlen = len; 1372 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1373 off += tlen; 1374 len -= tlen; 1375 } 1376 1377 while (len > 0) { 1378 if (top == NULL) { 1379 MGETHDR(m, M_DONTWAIT, MT_DATA); 1380 if (m == NULL) 1381 return NULL; 1382 m->m_pkthdr.rcvif = sc->sc_ifp; 1383 m->m_pkthdr.len = len; 1384 m->m_len = MHLEN; 1385 } else { 1386 MGET(m, M_DONTWAIT, MT_DATA); 1387 if (m == NULL) { 1388 m_freem(top); 1389 return NULL; 1390 } 1391 m->m_len = MLEN; 1392 } 1393 if (len >= MINCLSIZE) { 1394 MCLGET(m, M_DONTWAIT); 1395 if (m->m_flags & M_EXT) 1396 m->m_len = m->m_ext.ext_size; 1397 } 1398 if (top == NULL) { 1399 int hdrlen = sizeof(struct ieee80211_frame) + 1400 (sc->sc_format_llc ? sizeof(struct llc) : 1401 sizeof(struct ether_header)); 1402 caddr_t newdata = (caddr_t) 1403 ALIGN(m->m_data + hdrlen) - hdrlen; 1404 m->m_len -= newdata - m->m_data; 1405 m->m_data = newdata; 1406 } 1407 if (m->m_len > len) 1408 m->m_len = len; 1409 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1410 off += m->m_len; 1411 len -= m->m_len; 1412 *mp = m; 1413 mp = &m->m_next; 1414 } 1415 return top; 1416 } 1417 1418 /* 1419 * Initialize hardware and start firmware to accept commands. 1420 * Called everytime after power on firmware. 1421 */ 1422 1423 static int 1424 awi_init_hw(sc) 1425 struct awi_softc *sc; 1426 { 1427 u_int8_t status; 1428 u_int16_t intmask; 1429 int i, error; 1430 1431 sc->sc_enab_intr = 0; 1432 sc->sc_invalid = 0; /* XXX: really? */ 1433 awi_drvstate(sc, AWI_DRV_RESET); 1434 1435 /* reset firmware */ 1436 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1437 DELAY(100); 1438 awi_write_1(sc, AWI_SELFTEST, 0); 1439 awi_write_1(sc, AWI_CMD, 0); 1440 awi_write_1(sc, AWI_BANNER, 0); 1441 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1442 DELAY(100); 1443 1444 /* wait for selftest completion */ 1445 for (i = 0; ; i++) { 1446 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1447 printf("%s: failed to complete selftest (timeout)\n", 1448 sc->sc_dev.dv_xname); 1449 return ENXIO; 1450 } 1451 status = awi_read_1(sc, AWI_SELFTEST); 1452 if ((status & 0xf0) == 0xf0) 1453 break; 1454 if (sc->sc_cansleep) { 1455 sc->sc_sleep_cnt++; 1456 (void)tsleep(sc, PWAIT, "awitst", 1); 1457 sc->sc_sleep_cnt--; 1458 } else { 1459 DELAY(1000*1000/hz); 1460 } 1461 } 1462 if (status != AWI_SELFTEST_PASSED) { 1463 printf("%s: failed to complete selftest (code %x)\n", 1464 sc->sc_dev.dv_xname, status); 1465 return ENXIO; 1466 } 1467 1468 /* check banner to confirm firmware write it */ 1469 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1470 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1471 printf("%s: failed to complete selftest (bad banner)\n", 1472 sc->sc_dev.dv_xname); 1473 for (i = 0; i < AWI_BANNER_LEN; i++) 1474 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1475 printf("\n"); 1476 return ENXIO; 1477 } 1478 1479 /* initializing interrupt */ 1480 sc->sc_enab_intr = 1; 1481 error = awi_intr_lock(sc); 1482 if (error) 1483 return error; 1484 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1485 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1486 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1487 awi_write_1(sc, AWI_INTMASK2, 0); 1488 awi_write_1(sc, AWI_INTSTAT, 0); 1489 awi_write_1(sc, AWI_INTSTAT2, 0); 1490 awi_intr_unlock(sc); 1491 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1492 1493 /* issueing interface test command */ 1494 error = awi_cmd(sc, AWI_CMD_NOP); 1495 if (error) { 1496 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1497 if (error == ENXIO) 1498 printf(" (no hardware)\n"); 1499 else if (error != EWOULDBLOCK) 1500 printf(" (error %d)\n", error); 1501 else if (sc->sc_cansleep) 1502 printf(" (lost interrupt)\n"); 1503 else 1504 printf(" (command timeout)\n"); 1505 } 1506 return error; 1507 } 1508 1509 /* 1510 * Extract the factory default MIB value from firmware and assign the driver 1511 * default value. 1512 * Called once at attaching the interface. 1513 */ 1514 1515 static int 1516 awi_init_mibs(sc) 1517 struct awi_softc *sc; 1518 { 1519 int i, error; 1520 u_int8_t *rate; 1521 1522 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL)) != 0 || 1523 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR)) != 0 || 1524 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC)) != 0 || 1525 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT)) != 0 || 1526 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY)) != 0) { 1527 printf("%s: failed to get default mib value (error %d)\n", 1528 sc->sc_dev.dv_xname, error); 1529 return error; 1530 } 1531 1532 rate = sc->sc_mib_phy.aSuprt_Data_Rates; 1533 sc->sc_tx_rate = AWI_RATE_1MBIT; 1534 for (i = 0; i < rate[1]; i++) { 1535 if (AWI_80211_RATE(rate[2 + i]) > sc->sc_tx_rate) 1536 sc->sc_tx_rate = AWI_80211_RATE(rate[2 + i]); 1537 } 1538 awi_init_region(sc); 1539 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1540 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1541 sc->sc_mib_local.Fragmentation_Dis = 1; 1542 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1543 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1544 1545 /* allocate buffers */ 1546 sc->sc_txbase = AWI_BUFFERS; 1547 sc->sc_txend = sc->sc_txbase + 1548 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1549 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1550 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1551 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1552 sc->sc_txend - sc->sc_txbase); 1553 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1554 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1555 AWI_BUFFERS_END - sc->sc_txend); 1556 sc->sc_mib_local.Network_Mode = 1; 1557 sc->sc_mib_local.Acting_as_AP = 0; 1558 return 0; 1559 } 1560 1561 /* 1562 * Start transmitter and receiver of firmware 1563 * Called after awi_init_hw() to start operation. 1564 */ 1565 1566 static int 1567 awi_init_txrx(sc) 1568 struct awi_softc *sc; 1569 { 1570 int error; 1571 1572 /* start transmitter */ 1573 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 1574 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 1575 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 1576 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 1577 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 1578 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 1579 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 1580 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 1581 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_DATA, sc->sc_txbase); 1582 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_MGT, 0); 1583 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_BCAST, 0); 1584 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_PS, 0); 1585 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_CF, 0); 1586 error = awi_cmd(sc, AWI_CMD_INIT_TX); 1587 if (error) 1588 return error; 1589 1590 /* start receiver */ 1591 if (sc->sc_rxpend) { 1592 m_freem(sc->sc_rxpend); 1593 sc->sc_rxpend = NULL; 1594 } 1595 error = awi_cmd(sc, AWI_CMD_INIT_RX); 1596 if (error) 1597 return error; 1598 sc->sc_rxdoff = awi_read_4(sc, AWI_CMD_PARAMS+AWI_CA_IRX_DATA_DESC); 1599 sc->sc_rxmoff = awi_read_4(sc, AWI_CMD_PARAMS+AWI_CA_IRX_PS_DESC); 1600 return 0; 1601 } 1602 1603 static void 1604 awi_stop_txrx(sc) 1605 struct awi_softc *sc; 1606 { 1607 1608 if (sc->sc_cmd_inprog) 1609 (void)awi_cmd_wait(sc); 1610 (void)awi_cmd(sc, AWI_CMD_KILL_RX); 1611 (void)awi_cmd_wait(sc); 1612 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 1613 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_DATA, 1); 1614 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_MGT, 0); 1615 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_BCAST, 0); 1616 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_PS, 0); 1617 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_CF, 0); 1618 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX); 1619 (void)awi_cmd_wait(sc); 1620 } 1621 1622 int 1623 awi_init_region(sc) 1624 struct awi_softc *sc; 1625 { 1626 1627 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1628 switch (sc->sc_mib_phy.aCurrent_Reg_Domain) { 1629 case AWI_REG_DOMAIN_US: 1630 case AWI_REG_DOMAIN_CA: 1631 case AWI_REG_DOMAIN_EU: 1632 sc->sc_scan_min = 0; 1633 sc->sc_scan_max = 77; 1634 break; 1635 case AWI_REG_DOMAIN_ES: 1636 sc->sc_scan_min = 0; 1637 sc->sc_scan_max = 26; 1638 break; 1639 case AWI_REG_DOMAIN_FR: 1640 sc->sc_scan_min = 0; 1641 sc->sc_scan_max = 32; 1642 break; 1643 case AWI_REG_DOMAIN_JP: 1644 sc->sc_scan_min = 6; 1645 sc->sc_scan_max = 17; 1646 break; 1647 default: 1648 return EINVAL; 1649 } 1650 sc->sc_scan_set = sc->sc_scan_cur % 3 + 1; 1651 } else { 1652 switch (sc->sc_mib_phy.aCurrent_Reg_Domain) { 1653 case AWI_REG_DOMAIN_US: 1654 case AWI_REG_DOMAIN_CA: 1655 sc->sc_scan_min = 1; 1656 sc->sc_scan_max = 11; 1657 sc->sc_scan_cur = 3; 1658 break; 1659 case AWI_REG_DOMAIN_EU: 1660 sc->sc_scan_min = 1; 1661 sc->sc_scan_max = 13; 1662 sc->sc_scan_cur = 3; 1663 break; 1664 case AWI_REG_DOMAIN_ES: 1665 sc->sc_scan_min = 10; 1666 sc->sc_scan_max = 11; 1667 sc->sc_scan_cur = 10; 1668 break; 1669 case AWI_REG_DOMAIN_FR: 1670 sc->sc_scan_min = 10; 1671 sc->sc_scan_max = 13; 1672 sc->sc_scan_cur = 10; 1673 break; 1674 case AWI_REG_DOMAIN_JP: 1675 sc->sc_scan_min = 14; 1676 sc->sc_scan_max = 14; 1677 sc->sc_scan_cur = 14; 1678 break; 1679 default: 1680 return EINVAL; 1681 } 1682 } 1683 sc->sc_ownch = sc->sc_scan_cur; 1684 return 0; 1685 } 1686 1687 static int 1688 awi_start_scan(sc) 1689 struct awi_softc *sc; 1690 { 1691 int error = 0; 1692 struct awi_bss *bp; 1693 1694 while ((bp = TAILQ_FIRST(&sc->sc_scan)) != NULL) { 1695 TAILQ_REMOVE(&sc->sc_scan, bp, list); 1696 free(bp, M_DEVBUF); 1697 } 1698 if (!sc->sc_mib_local.Network_Mode && sc->sc_no_bssid) { 1699 memset(&sc->sc_bss, 0, sizeof(sc->sc_bss)); 1700 sc->sc_bss.essid[0] = IEEE80211_ELEMID_SSID; 1701 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1702 sc->sc_bss.chanset = sc->sc_ownch % 3 + 1; 1703 sc->sc_bss.pattern = sc->sc_ownch; 1704 sc->sc_bss.index = 1; 1705 sc->sc_bss.dwell_time = 200; /*XXX*/ 1706 } else 1707 sc->sc_bss.chanset = sc->sc_ownch; 1708 sc->sc_status = AWI_ST_SETSS; 1709 error = awi_set_ss(sc); 1710 } else { 1711 if (sc->sc_mib_local.Network_Mode) 1712 awi_drvstate(sc, AWI_DRV_INFSC); 1713 else 1714 awi_drvstate(sc, AWI_DRV_ADHSC); 1715 sc->sc_start_bss = 0; 1716 sc->sc_active_scan = 1; 1717 sc->sc_mgt_timer = AWI_ASCAN_WAIT / 1000; 1718 sc->sc_ifp->if_timer = 1; 1719 sc->sc_status = AWI_ST_SCAN; 1720 error = awi_cmd_scan(sc); 1721 } 1722 return error; 1723 } 1724 1725 static int 1726 awi_next_scan(sc) 1727 struct awi_softc *sc; 1728 { 1729 int error; 1730 1731 for (;;) { 1732 /* 1733 * The pattern parameter for FH phy should be incremented 1734 * by 3. But BayStack 650 Access Points apparently always 1735 * assign hop pattern set parameter to 1 for any pattern. 1736 * So we try all combinations of pattern/set parameters. 1737 * Since this causes no error, it may be a bug of 1738 * PCnetMobile firmware. 1739 */ 1740 sc->sc_scan_cur++; 1741 if (sc->sc_scan_cur > sc->sc_scan_max) { 1742 sc->sc_scan_cur = sc->sc_scan_min; 1743 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 1744 sc->sc_scan_set = sc->sc_scan_set % 3 + 1; 1745 } 1746 error = awi_cmd_scan(sc); 1747 if (error != EINVAL) 1748 break; 1749 } 1750 return error; 1751 } 1752 1753 static void 1754 awi_stop_scan(sc) 1755 struct awi_softc *sc; 1756 { 1757 struct ifnet *ifp = sc->sc_ifp; 1758 struct awi_bss *bp, *sbp; 1759 int fail; 1760 1761 bp = TAILQ_FIRST(&sc->sc_scan); 1762 if (bp == NULL) { 1763 notfound: 1764 if (sc->sc_active_scan) { 1765 if (ifp->if_flags & IFF_DEBUG) 1766 printf("%s: entering passive scan mode\n", 1767 sc->sc_dev.dv_xname); 1768 sc->sc_active_scan = 0; 1769 } 1770 sc->sc_mgt_timer = AWI_PSCAN_WAIT / 1000; 1771 ifp->if_timer = 1; 1772 (void)awi_next_scan(sc); 1773 return; 1774 } 1775 sbp = NULL; 1776 if (ifp->if_flags & IFF_DEBUG) 1777 printf("%s:\tmacaddr ch/pat sig flag wep essid\n", 1778 sc->sc_dev.dv_xname); 1779 for (; bp != NULL; bp = TAILQ_NEXT(bp, list)) { 1780 if (bp->fails) { 1781 /* 1782 * The configuration of the access points may change 1783 * during my scan. So we retries to associate with 1784 * it unless there are any suitable AP. 1785 */ 1786 if (bp->fails++ < 3) 1787 continue; 1788 bp->fails = 0; 1789 } 1790 fail = 0; 1791 /* 1792 * Since the firmware apparently scans not only the specified 1793 * channel of SCAN command but all available channel within 1794 * the region, we should filter out unnecessary responses here. 1795 */ 1796 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1797 if (bp->pattern < sc->sc_scan_min || 1798 bp->pattern > sc->sc_scan_max) 1799 fail |= 0x01; 1800 } else { 1801 if (bp->chanset < sc->sc_scan_min || 1802 bp->chanset > sc->sc_scan_max) 1803 fail |= 0x01; 1804 } 1805 if (sc->sc_mib_local.Network_Mode) { 1806 if (!(bp->capinfo & IEEE80211_CAPINFO_ESS) || 1807 (bp->capinfo & IEEE80211_CAPINFO_IBSS)) 1808 fail |= 0x02; 1809 } else { 1810 if ((bp->capinfo & IEEE80211_CAPINFO_ESS) || 1811 !(bp->capinfo & IEEE80211_CAPINFO_IBSS)) 1812 fail |= 0x02; 1813 } 1814 if (sc->sc_wep_algo == NULL) { 1815 if (bp->capinfo & IEEE80211_CAPINFO_PRIVACY) 1816 fail |= 0x04; 1817 } else { 1818 if (!(bp->capinfo & IEEE80211_CAPINFO_PRIVACY)) 1819 fail |= 0x04; 1820 } 1821 if (sc->sc_mib_mac.aDesired_ESS_ID[1] != 0 && 1822 memcmp(&sc->sc_mib_mac.aDesired_ESS_ID, bp->essid, 1823 sizeof(bp->essid)) != 0) 1824 fail |= 0x08; 1825 if (ifp->if_flags & IFF_DEBUG) { 1826 printf(" %c %s", fail ? '-' : '+', 1827 ether_sprintf(bp->esrc)); 1828 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 1829 printf(" %2d/%d%c", bp->pattern, bp->chanset, 1830 fail & 0x01 ? '!' : ' '); 1831 else 1832 printf(" %4d%c", bp->chanset, 1833 fail & 0x01 ? '!' : ' '); 1834 printf(" %+4d", bp->rssi); 1835 printf(" %4s%c", 1836 (bp->capinfo & IEEE80211_CAPINFO_ESS) ? "ess" : 1837 (bp->capinfo & IEEE80211_CAPINFO_IBSS) ? "ibss" : 1838 "????", 1839 fail & 0x02 ? '!' : ' '); 1840 printf(" %3s%c ", 1841 (bp->capinfo & IEEE80211_CAPINFO_PRIVACY) ? "wep" : 1842 "no", 1843 fail & 0x04 ? '!' : ' '); 1844 awi_print_essid(bp->essid); 1845 printf("%s\n", fail & 0x08 ? "!" : ""); 1846 } 1847 if (!fail) { 1848 if (sbp == NULL || bp->rssi > sbp->rssi) 1849 sbp = bp; 1850 } 1851 } 1852 if (sbp == NULL) 1853 goto notfound; 1854 sc->sc_bss = *sbp; 1855 (void)awi_set_ss(sc); 1856 } 1857 1858 static void 1859 awi_recv_beacon(sc, m0, rxts, rssi) 1860 struct awi_softc *sc; 1861 struct mbuf *m0; 1862 u_int32_t rxts; 1863 u_int8_t rssi; 1864 { 1865 struct ieee80211_frame *wh; 1866 struct awi_bss *bp; 1867 u_int8_t *frame, *eframe; 1868 u_int8_t *tstamp, *bintval, *capinfo, *ssid, *rates, *parms; 1869 1870 if (sc->sc_status != AWI_ST_SCAN) 1871 return; 1872 wh = mtod(m0, struct ieee80211_frame *); 1873 1874 frame = (u_int8_t *)&wh[1]; 1875 eframe = mtod(m0, u_int8_t *) + m0->m_len; 1876 /* 1877 * XXX: 1878 * timestamp [8] 1879 * beacon interval [2] 1880 * capability information [2] 1881 * ssid [tlv] 1882 * supported rates [tlv] 1883 * parameter set [tlv] 1884 * ... 1885 */ 1886 if (frame + 12 > eframe) { 1887 #ifdef AWI_DEBUG 1888 if (awi_verbose) 1889 printf("awi_recv_beacon: frame too short \n"); 1890 #endif 1891 return; 1892 } 1893 tstamp = frame; 1894 frame += 8; 1895 bintval = frame; 1896 frame += 2; 1897 capinfo = frame; 1898 frame += 2; 1899 1900 ssid = rates = parms = NULL; 1901 while (frame < eframe) { 1902 switch (*frame) { 1903 case IEEE80211_ELEMID_SSID: 1904 ssid = frame; 1905 break; 1906 case IEEE80211_ELEMID_RATES: 1907 rates = frame; 1908 break; 1909 case IEEE80211_ELEMID_FHPARMS: 1910 case IEEE80211_ELEMID_DSPARMS: 1911 parms = frame; 1912 break; 1913 } 1914 frame += frame[1] + 2; 1915 } 1916 if (ssid == NULL || rates == NULL || parms == NULL) { 1917 #ifdef AWI_DEBUG 1918 if (awi_verbose) 1919 printf("awi_recv_beacon: ssid=%p, rates=%p, parms=%p\n", 1920 ssid, rates, parms); 1921 #endif 1922 return; 1923 } 1924 if (ssid[1] > IEEE80211_NWID_LEN) { 1925 #ifdef AWI_DEBUG 1926 if (awi_verbose) 1927 printf("awi_recv_beacon: bad ssid len: %d from %s\n", 1928 ssid[1], ether_sprintf(wh->i_addr2)); 1929 #endif 1930 return; 1931 } 1932 1933 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 1934 bp = TAILQ_NEXT(bp, list)) { 1935 if (memcmp(bp->esrc, wh->i_addr2, ETHER_ADDR_LEN) == 0 && 1936 memcmp(bp->bssid, wh->i_addr3, ETHER_ADDR_LEN) == 0) 1937 break; 1938 } 1939 if (bp == NULL) { 1940 bp = malloc(sizeof(struct awi_bss), M_DEVBUF, M_NOWAIT); 1941 if (bp == NULL) 1942 return; 1943 TAILQ_INSERT_TAIL(&sc->sc_scan, bp, list); 1944 memcpy(bp->esrc, wh->i_addr2, ETHER_ADDR_LEN); 1945 memcpy(bp->bssid, wh->i_addr3, ETHER_ADDR_LEN); 1946 memset(bp->essid, 0, sizeof(bp->essid)); 1947 memcpy(bp->essid, ssid, 2 + ssid[1]); 1948 } 1949 bp->rssi = rssi; 1950 bp->rxtime = rxts; 1951 memcpy(bp->timestamp, tstamp, sizeof(bp->timestamp)); 1952 bp->interval = LE_READ_2(bintval); 1953 bp->capinfo = LE_READ_2(capinfo); 1954 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1955 bp->chanset = parms[4]; 1956 bp->pattern = parms[5]; 1957 bp->index = parms[6]; 1958 bp->dwell_time = LE_READ_2(parms + 2); 1959 } else { 1960 bp->chanset = parms[2]; 1961 bp->pattern = 0; 1962 bp->index = 0; 1963 bp->dwell_time = 0; 1964 } 1965 if (sc->sc_mgt_timer == 0) 1966 awi_stop_scan(sc); 1967 } 1968 1969 static int 1970 awi_set_ss(sc) 1971 struct awi_softc *sc; 1972 { 1973 struct ifnet *ifp = sc->sc_ifp; 1974 struct awi_bss *bp; 1975 int error; 1976 1977 sc->sc_status = AWI_ST_SETSS; 1978 bp = &sc->sc_bss; 1979 if (ifp->if_flags & IFF_DEBUG) { 1980 printf("%s: ch %d pat %d id %d dw %d iv %d bss %s ssid ", 1981 sc->sc_dev.dv_xname, bp->chanset, 1982 bp->pattern, bp->index, bp->dwell_time, bp->interval, 1983 ether_sprintf(bp->bssid)); 1984 awi_print_essid(bp->essid); 1985 printf("\n"); 1986 } 1987 memcpy(&sc->sc_mib_mgt.aCurrent_BSS_ID, bp->bssid, ETHER_ADDR_LEN); 1988 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID, bp->essid, 1989 AWI_ESS_ID_SIZE); 1990 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, bp->interval); 1991 error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT); 1992 return error; 1993 } 1994 1995 static void 1996 awi_try_sync(sc) 1997 struct awi_softc *sc; 1998 { 1999 struct awi_bss *bp; 2000 2001 sc->sc_status = AWI_ST_SYNC; 2002 bp = &sc->sc_bss; 2003 2004 if (sc->sc_cmd_inprog) { 2005 if (awi_cmd_wait(sc)) 2006 return; 2007 } 2008 sc->sc_cmd_inprog = AWI_CMD_SYNC; 2009 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_SET, bp->chanset); 2010 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_PATTERN, bp->pattern); 2011 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_IDX, bp->index); 2012 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_STARTBSS, 2013 sc->sc_start_bss ? 1 : 0); 2014 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_DWELL, bp->dwell_time); 2015 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_MBZ, 0); 2016 awi_write_bytes(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_TIMESTAMP, 2017 bp->timestamp, 8); 2018 awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_REFTIME, bp->rxtime); 2019 (void)awi_cmd(sc, AWI_CMD_SYNC); 2020 } 2021 2022 static void 2023 awi_sync_done(sc) 2024 struct awi_softc *sc; 2025 { 2026 struct ifnet *ifp = sc->sc_ifp; 2027 2028 if (sc->sc_mib_local.Network_Mode) { 2029 awi_drvstate(sc, AWI_DRV_INFSY); 2030 awi_send_auth(sc, 1); 2031 } else { 2032 if (ifp->if_flags & IFF_DEBUG) { 2033 printf("%s: synced with", sc->sc_dev.dv_xname); 2034 if (sc->sc_no_bssid) 2035 printf(" no-bssid"); 2036 else { 2037 printf(" %s ssid ", 2038 ether_sprintf(sc->sc_bss.bssid)); 2039 awi_print_essid(sc->sc_bss.essid); 2040 } 2041 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 2042 printf(" at chanset %d pattern %d\n", 2043 sc->sc_bss.chanset, sc->sc_bss.pattern); 2044 else 2045 printf(" at channel %d\n", sc->sc_bss.chanset); 2046 } 2047 awi_drvstate(sc, AWI_DRV_ADHSY); 2048 sc->sc_status = AWI_ST_RUNNING; 2049 ifp->if_flags |= IFF_RUNNING; 2050 awi_start(ifp); 2051 } 2052 } 2053 2054 static void 2055 awi_send_deauth(sc) 2056 struct awi_softc *sc; 2057 { 2058 struct ifnet *ifp = sc->sc_ifp; 2059 struct mbuf *m; 2060 struct ieee80211_frame *wh; 2061 u_int8_t *deauth; 2062 2063 MGETHDR(m, M_DONTWAIT, MT_DATA); 2064 if (m == NULL) 2065 return; 2066 if (ifp->if_flags & IFF_DEBUG) 2067 printf("%s: sending deauth to %s\n", sc->sc_dev.dv_xname, 2068 ether_sprintf(sc->sc_bss.bssid)); 2069 2070 wh = mtod(m, struct ieee80211_frame *); 2071 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2072 IEEE80211_FC0_SUBTYPE_AUTH; 2073 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2074 LE_WRITE_2(wh->i_dur, 0); 2075 LE_WRITE_2(wh->i_seq, 0); 2076 memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2077 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2078 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2079 2080 deauth = (u_int8_t *)&wh[1]; 2081 LE_WRITE_2(deauth, IEEE80211_REASON_AUTH_LEAVE); 2082 deauth += 2; 2083 2084 m->m_pkthdr.len = m->m_len = deauth - mtod(m, u_int8_t *); 2085 IF_ENQUEUE(&sc->sc_mgtq, m); 2086 awi_start(ifp); 2087 awi_drvstate(sc, AWI_DRV_INFTOSS); 2088 } 2089 2090 static void 2091 awi_send_auth(sc, seq) 2092 struct awi_softc *sc; 2093 int seq; 2094 { 2095 struct ifnet *ifp = sc->sc_ifp; 2096 struct mbuf *m; 2097 struct ieee80211_frame *wh; 2098 u_int8_t *auth; 2099 2100 MGETHDR(m, M_DONTWAIT, MT_DATA); 2101 if (m == NULL) 2102 return; 2103 sc->sc_status = AWI_ST_AUTH; 2104 if (ifp->if_flags & IFF_DEBUG) 2105 printf("%s: sending auth to %s\n", sc->sc_dev.dv_xname, 2106 ether_sprintf(sc->sc_bss.bssid)); 2107 2108 wh = mtod(m, struct ieee80211_frame *); 2109 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2110 IEEE80211_FC0_SUBTYPE_AUTH; 2111 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2112 LE_WRITE_2(wh->i_dur, 0); 2113 LE_WRITE_2(wh->i_seq, 0); 2114 memcpy(wh->i_addr1, sc->sc_bss.esrc, ETHER_ADDR_LEN); 2115 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2116 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2117 2118 auth = (u_int8_t *)&wh[1]; 2119 /* algorithm number */ 2120 LE_WRITE_2(auth, IEEE80211_AUTH_ALG_OPEN); 2121 auth += 2; 2122 /* sequence number */ 2123 LE_WRITE_2(auth, seq); 2124 auth += 2; 2125 /* status */ 2126 LE_WRITE_2(auth, 0); 2127 auth += 2; 2128 2129 m->m_pkthdr.len = m->m_len = auth - mtod(m, u_int8_t *); 2130 IF_ENQUEUE(&sc->sc_mgtq, m); 2131 awi_start(ifp); 2132 2133 sc->sc_mgt_timer = AWI_TRANS_TIMEOUT / 1000; 2134 ifp->if_timer = 1; 2135 } 2136 2137 static void 2138 awi_recv_auth(sc, m0) 2139 struct awi_softc *sc; 2140 struct mbuf *m0; 2141 { 2142 struct ieee80211_frame *wh; 2143 u_int8_t *auth, *eframe; 2144 struct awi_bss *bp; 2145 u_int16_t status; 2146 2147 wh = mtod(m0, struct ieee80211_frame *); 2148 auth = (u_int8_t *)&wh[1]; 2149 eframe = mtod(m0, u_int8_t *) + m0->m_len; 2150 if (sc->sc_ifp->if_flags & IFF_DEBUG) 2151 printf("%s: receive auth from %s\n", sc->sc_dev.dv_xname, 2152 ether_sprintf(wh->i_addr2)); 2153 2154 /* algorithm number */ 2155 if (LE_READ_2(auth) != IEEE80211_AUTH_ALG_OPEN) 2156 return; 2157 auth += 2; 2158 if (!sc->sc_mib_local.Network_Mode) { 2159 if (sc->sc_status != AWI_ST_RUNNING) 2160 return; 2161 if (LE_READ_2(auth) == 1) 2162 awi_send_auth(sc, 2); 2163 return; 2164 } 2165 if (sc->sc_status != AWI_ST_AUTH) 2166 return; 2167 /* sequence number */ 2168 if (LE_READ_2(auth) != 2) 2169 return; 2170 auth += 2; 2171 /* status */ 2172 status = LE_READ_2(auth); 2173 if (status != 0) { 2174 printf("%s: authentication failed (reason %d)\n", 2175 sc->sc_dev.dv_xname, status); 2176 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 2177 bp = TAILQ_NEXT(bp, list)) { 2178 if (memcmp(bp->esrc, sc->sc_bss.esrc, ETHER_ADDR_LEN) 2179 == 0) { 2180 bp->fails++; 2181 break; 2182 } 2183 } 2184 return; 2185 } 2186 sc->sc_mgt_timer = 0; 2187 awi_drvstate(sc, AWI_DRV_INFAUTH); 2188 awi_send_asreq(sc, 0); 2189 } 2190 2191 static void 2192 awi_send_asreq(sc, reassoc) 2193 struct awi_softc *sc; 2194 int reassoc; 2195 { 2196 struct ifnet *ifp = sc->sc_ifp; 2197 struct mbuf *m; 2198 struct ieee80211_frame *wh; 2199 u_int16_t capinfo, lintval; 2200 u_int8_t *asreq; 2201 2202 MGETHDR(m, M_DONTWAIT, MT_DATA); 2203 if (m == NULL) 2204 return; 2205 sc->sc_status = AWI_ST_ASSOC; 2206 if (ifp->if_flags & IFF_DEBUG) 2207 printf("%s: sending %sassoc req to %s\n", sc->sc_dev.dv_xname, 2208 reassoc ? "re" : "", 2209 ether_sprintf(sc->sc_bss.bssid)); 2210 2211 wh = mtod(m, struct ieee80211_frame *); 2212 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT; 2213 if (reassoc) 2214 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_REASSOC_REQ; 2215 else 2216 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_ASSOC_REQ; 2217 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2218 LE_WRITE_2(wh->i_dur, 0); 2219 LE_WRITE_2(wh->i_seq, 0); 2220 memcpy(wh->i_addr1, sc->sc_bss.esrc, ETHER_ADDR_LEN); 2221 memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN); 2222 memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2223 2224 asreq = (u_int8_t *)&wh[1]; 2225 2226 /* capability info */ 2227 capinfo = IEEE80211_CAPINFO_CF_POLLABLE; /*XXX*/ 2228 if (sc->sc_mib_local.Network_Mode) 2229 capinfo |= IEEE80211_CAPINFO_ESS; 2230 else 2231 capinfo |= IEEE80211_CAPINFO_IBSS; 2232 if (sc->sc_wep_algo != NULL) 2233 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2234 LE_WRITE_2(asreq, capinfo); 2235 asreq += 2; 2236 2237 /* listen interval */ 2238 lintval = LE_READ_2(&sc->sc_mib_mgt.aListen_Interval); 2239 LE_WRITE_2(asreq, lintval); 2240 asreq += 2; 2241 if (reassoc) { 2242 /* current AP address */ 2243 memcpy(asreq, sc->sc_bss.bssid, ETHER_ADDR_LEN); 2244 asreq += ETHER_ADDR_LEN; 2245 } 2246 /* ssid */ 2247 memcpy(asreq, sc->sc_bss.essid, 2 + sc->sc_bss.essid[1]); 2248 asreq += 2 + asreq[1]; 2249 /* supported rates */ 2250 memcpy(asreq, &sc->sc_mib_phy.aSuprt_Data_Rates, 4); 2251 asreq += 2 + asreq[1]; 2252 2253 m->m_pkthdr.len = m->m_len = asreq - mtod(m, u_int8_t *); 2254 IF_ENQUEUE(&sc->sc_mgtq, m); 2255 awi_start(ifp); 2256 2257 sc->sc_mgt_timer = AWI_TRANS_TIMEOUT / 1000; 2258 ifp->if_timer = 1; 2259 } 2260 2261 static void 2262 awi_recv_asresp(sc, m0) 2263 struct awi_softc *sc; 2264 struct mbuf *m0; 2265 { 2266 struct ieee80211_frame *wh; 2267 u_int8_t *asresp, *eframe; 2268 u_int16_t status; 2269 u_int8_t rate, *phy_rates; 2270 struct awi_bss *bp; 2271 int i, j; 2272 2273 wh = mtod(m0, struct ieee80211_frame *); 2274 asresp = (u_int8_t *)&wh[1]; 2275 eframe = mtod(m0, u_int8_t *) + m0->m_len; 2276 if (sc->sc_ifp->if_flags & IFF_DEBUG) 2277 printf("%s: receive assoc resp from %s\n", sc->sc_dev.dv_xname, 2278 ether_sprintf(wh->i_addr2)); 2279 2280 if (!sc->sc_mib_local.Network_Mode) 2281 return; 2282 2283 if (sc->sc_status != AWI_ST_ASSOC) 2284 return; 2285 /* capability info */ 2286 asresp += 2; 2287 /* status */ 2288 status = LE_READ_2(asresp); 2289 if (status != 0) { 2290 printf("%s: association failed (reason %d)\n", 2291 sc->sc_dev.dv_xname, status); 2292 for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL; 2293 bp = TAILQ_NEXT(bp, list)) { 2294 if (memcmp(bp->esrc, sc->sc_bss.esrc, ETHER_ADDR_LEN) 2295 == 0) { 2296 bp->fails++; 2297 break; 2298 } 2299 } 2300 return; 2301 } 2302 asresp += 2; 2303 /* association id */ 2304 asresp += 2; 2305 /* supported rates */ 2306 rate = AWI_RATE_1MBIT; 2307 for (i = 0; i < asresp[1]; i++) { 2308 if (AWI_80211_RATE(asresp[2 + i]) <= rate) 2309 continue; 2310 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates; 2311 for (j = 0; j < phy_rates[1]; j++) { 2312 if (AWI_80211_RATE(asresp[2 + i]) == 2313 AWI_80211_RATE(phy_rates[2 + j])) 2314 rate = AWI_80211_RATE(asresp[2 + i]); 2315 } 2316 } 2317 if (sc->sc_ifp->if_flags & IFF_DEBUG) { 2318 printf("%s: associated with %s ssid ", 2319 sc->sc_dev.dv_xname, ether_sprintf(sc->sc_bss.bssid)); 2320 awi_print_essid(sc->sc_bss.essid); 2321 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 2322 printf(" chanset %d pattern %d\n", 2323 sc->sc_bss.chanset, sc->sc_bss.pattern); 2324 else 2325 printf(" channel %d\n", sc->sc_bss.chanset); 2326 } 2327 sc->sc_tx_rate = rate; 2328 sc->sc_mgt_timer = 0; 2329 sc->sc_rx_timer = 10; 2330 sc->sc_ifp->if_timer = 1; 2331 sc->sc_status = AWI_ST_RUNNING; 2332 sc->sc_ifp->if_flags |= IFF_RUNNING; 2333 awi_drvstate(sc, AWI_DRV_INFASSOC); 2334 awi_start(sc->sc_ifp); 2335 } 2336 2337 static int 2338 awi_mib(sc, cmd, mib) 2339 struct awi_softc *sc; 2340 u_int8_t cmd; 2341 u_int8_t mib; 2342 { 2343 int error; 2344 u_int8_t size, *ptr; 2345 2346 switch (mib) { 2347 case AWI_MIB_LOCAL: 2348 ptr = (u_int8_t *)&sc->sc_mib_local; 2349 size = sizeof(sc->sc_mib_local); 2350 break; 2351 case AWI_MIB_ADDR: 2352 ptr = (u_int8_t *)&sc->sc_mib_addr; 2353 size = sizeof(sc->sc_mib_addr); 2354 break; 2355 case AWI_MIB_MAC: 2356 ptr = (u_int8_t *)&sc->sc_mib_mac; 2357 size = sizeof(sc->sc_mib_mac); 2358 break; 2359 case AWI_MIB_STAT: 2360 ptr = (u_int8_t *)&sc->sc_mib_stat; 2361 size = sizeof(sc->sc_mib_stat); 2362 break; 2363 case AWI_MIB_MGT: 2364 ptr = (u_int8_t *)&sc->sc_mib_mgt; 2365 size = sizeof(sc->sc_mib_mgt); 2366 break; 2367 case AWI_MIB_PHY: 2368 ptr = (u_int8_t *)&sc->sc_mib_phy; 2369 size = sizeof(sc->sc_mib_phy); 2370 break; 2371 default: 2372 return EINVAL; 2373 } 2374 if (sc->sc_cmd_inprog) { 2375 error = awi_cmd_wait(sc); 2376 if (error) { 2377 if (error == EWOULDBLOCK) 2378 printf("awi_mib: cmd %d inprog", 2379 sc->sc_cmd_inprog); 2380 return error; 2381 } 2382 } 2383 sc->sc_cmd_inprog = cmd; 2384 if (cmd == AWI_CMD_SET_MIB) 2385 awi_write_bytes(sc, AWI_CMD_PARAMS+AWI_CA_MIB_DATA, ptr, size); 2386 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_TYPE, mib); 2387 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_SIZE, size); 2388 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_INDEX, 0); 2389 error = awi_cmd(sc, cmd); 2390 if (error) 2391 return error; 2392 if (cmd == AWI_CMD_GET_MIB) { 2393 awi_read_bytes(sc, AWI_CMD_PARAMS+AWI_CA_MIB_DATA, ptr, size); 2394 #ifdef AWI_DEBUG 2395 if (awi_verbose) { 2396 int i; 2397 2398 printf("awi_mib: #%d:", mib); 2399 for (i = 0; i < size; i++) 2400 printf(" %02x", ptr[i]); 2401 printf("\n"); 2402 } 2403 #endif 2404 } 2405 return 0; 2406 } 2407 2408 static int 2409 awi_cmd_scan(sc) 2410 struct awi_softc *sc; 2411 { 2412 int error; 2413 u_int8_t scan_mode; 2414 2415 if (sc->sc_active_scan) 2416 scan_mode = AWI_SCAN_ACTIVE; 2417 else 2418 scan_mode = AWI_SCAN_PASSIVE; 2419 if (sc->sc_mib_mgt.aScan_Mode != scan_mode) { 2420 sc->sc_mib_mgt.aScan_Mode = scan_mode; 2421 error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT); 2422 return error; 2423 } 2424 2425 if (sc->sc_cmd_inprog) { 2426 error = awi_cmd_wait(sc); 2427 if (error) 2428 return error; 2429 } 2430 sc->sc_cmd_inprog = AWI_CMD_SCAN; 2431 awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_DURATION, 2432 sc->sc_active_scan ? AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 2433 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 2434 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SET, 2435 sc->sc_scan_set); 2436 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_PATTERN, 2437 sc->sc_scan_cur); 2438 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_IDX, 1); 2439 } else { 2440 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SET, 2441 sc->sc_scan_cur); 2442 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_PATTERN, 0); 2443 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_IDX, 0); 2444 } 2445 awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SUSP, 0); 2446 return awi_cmd(sc, AWI_CMD_SCAN); 2447 } 2448 2449 static int 2450 awi_cmd(sc, cmd) 2451 struct awi_softc *sc; 2452 u_int8_t cmd; 2453 { 2454 u_int8_t status; 2455 int error = 0; 2456 2457 sc->sc_cmd_inprog = cmd; 2458 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 2459 awi_write_1(sc, AWI_CMD, cmd); 2460 if (sc->sc_status != AWI_ST_INIT) 2461 return 0; 2462 error = awi_cmd_wait(sc); 2463 if (error) 2464 return error; 2465 status = awi_read_1(sc, AWI_CMD_STATUS); 2466 awi_write_1(sc, AWI_CMD, 0); 2467 switch (status) { 2468 case AWI_STAT_OK: 2469 break; 2470 case AWI_STAT_BADPARM: 2471 return EINVAL; 2472 default: 2473 printf("%s: command %d failed %x\n", 2474 sc->sc_dev.dv_xname, cmd, status); 2475 return ENXIO; 2476 } 2477 return 0; 2478 } 2479 2480 static void 2481 awi_cmd_done(sc) 2482 struct awi_softc *sc; 2483 { 2484 u_int8_t cmd, status; 2485 2486 status = awi_read_1(sc, AWI_CMD_STATUS); 2487 if (status == AWI_STAT_IDLE) 2488 return; /* stray interrupt */ 2489 2490 cmd = sc->sc_cmd_inprog; 2491 sc->sc_cmd_inprog = 0; 2492 if (sc->sc_status == AWI_ST_INIT) { 2493 wakeup(sc); 2494 return; 2495 } 2496 awi_write_1(sc, AWI_CMD, 0); 2497 2498 if (status != AWI_STAT_OK) { 2499 printf("%s: command %d failed %x\n", 2500 sc->sc_dev.dv_xname, cmd, status); 2501 return; 2502 } 2503 switch (sc->sc_status) { 2504 case AWI_ST_SCAN: 2505 if (cmd == AWI_CMD_SET_MIB) 2506 awi_cmd_scan(sc); /* retry */ 2507 break; 2508 case AWI_ST_SETSS: 2509 awi_try_sync(sc); 2510 break; 2511 case AWI_ST_SYNC: 2512 awi_sync_done(sc); 2513 break; 2514 default: 2515 break; 2516 } 2517 } 2518 2519 static int 2520 awi_next_txd(sc, len, framep, ntxdp) 2521 struct awi_softc *sc; 2522 int len; 2523 u_int32_t *framep, *ntxdp; 2524 { 2525 u_int32_t txd, ntxd, frame; 2526 2527 txd = sc->sc_txnext; 2528 frame = txd + AWI_TXD_SIZE; 2529 if (frame + len > sc->sc_txend) 2530 frame = sc->sc_txbase; 2531 ntxd = frame + len; 2532 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 2533 ntxd = sc->sc_txbase; 2534 *framep = frame; 2535 *ntxdp = ntxd; 2536 /* 2537 * Determine if there are any room in ring buffer. 2538 * --- send wait, === new data, +++ conflict (ENOBUFS) 2539 * base........................end 2540 * done----txd=====ntxd OK 2541 * --txd=====done++++ntxd-- full 2542 * --txd=====ntxd done-- OK 2543 * ==ntxd done----txd=== OK 2544 * ==done++++ntxd----txd=== full 2545 * ++ntxd txd=====done++ full 2546 */ 2547 if (txd < ntxd) { 2548 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 2549 return ENOBUFS; 2550 } else { 2551 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 2552 return ENOBUFS; 2553 } 2554 return 0; 2555 } 2556 2557 static int 2558 awi_lock(sc) 2559 struct awi_softc *sc; 2560 { 2561 int error = 0; 2562 2563 if (curproc == NULL) { 2564 /* 2565 * XXX 2566 * Though driver ioctl should be called with context, 2567 * KAME ipv6 stack calls ioctl in interrupt for now. 2568 * We simply abort the request if there are other 2569 * ioctl requests in progress. 2570 */ 2571 if (sc->sc_busy) { 2572 return EWOULDBLOCK; 2573 if (sc->sc_invalid) 2574 return ENXIO; 2575 } 2576 sc->sc_busy = 1; 2577 sc->sc_cansleep = 0; 2578 return 0; 2579 } 2580 while (sc->sc_busy) { 2581 if (sc->sc_invalid) 2582 return ENXIO; 2583 sc->sc_sleep_cnt++; 2584 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 2585 sc->sc_sleep_cnt--; 2586 if (error) 2587 return error; 2588 } 2589 sc->sc_busy = 1; 2590 sc->sc_cansleep = 1; 2591 return 0; 2592 } 2593 2594 static void 2595 awi_unlock(sc) 2596 struct awi_softc *sc; 2597 { 2598 sc->sc_busy = 0; 2599 sc->sc_cansleep = 0; 2600 if (sc->sc_sleep_cnt) 2601 wakeup(sc); 2602 } 2603 2604 static int 2605 awi_intr_lock(sc) 2606 struct awi_softc *sc; 2607 { 2608 u_int8_t status; 2609 int i, retry; 2610 2611 status = 1; 2612 for (retry = 0; retry < 10; retry++) { 2613 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 2614 status = awi_read_1(sc, AWI_LOCKOUT_HOST); 2615 if (status == 0) 2616 break; 2617 DELAY(5); 2618 } 2619 if (status != 0) 2620 break; 2621 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 2622 status = awi_read_1(sc, AWI_LOCKOUT_HOST); 2623 if (status == 0) 2624 break; 2625 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 2626 } 2627 if (status != 0) { 2628 printf("%s: failed to lock interrupt\n", 2629 sc->sc_dev.dv_xname); 2630 return ENXIO; 2631 } 2632 return 0; 2633 } 2634 2635 static void 2636 awi_intr_unlock(sc) 2637 struct awi_softc *sc; 2638 { 2639 2640 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 2641 } 2642 2643 static int 2644 awi_cmd_wait(sc) 2645 struct awi_softc *sc; 2646 { 2647 int i, error = 0; 2648 2649 i = 0; 2650 while (sc->sc_cmd_inprog) { 2651 if (sc->sc_invalid) 2652 return ENXIO; 2653 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 2654 printf("%s: failed to access hardware\n", 2655 sc->sc_dev.dv_xname); 2656 sc->sc_invalid = 1; 2657 return ENXIO; 2658 } 2659 if (sc->sc_cansleep) { 2660 sc->sc_sleep_cnt++; 2661 error = tsleep(sc, PWAIT, "awicmd", 2662 AWI_CMD_TIMEOUT*hz/1000); 2663 sc->sc_sleep_cnt--; 2664 } else { 2665 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 2666 awi_cmd_done(sc); 2667 break; 2668 } 2669 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 2670 error = EWOULDBLOCK; 2671 else 2672 DELAY(10); 2673 } 2674 if (error) 2675 break; 2676 } 2677 return error; 2678 } 2679 2680 static void 2681 awi_print_essid(essid) 2682 u_int8_t *essid; 2683 { 2684 int i, len; 2685 u_int8_t *p; 2686 2687 len = essid[1]; 2688 if (len > IEEE80211_NWID_LEN) 2689 len = IEEE80211_NWID_LEN; /*XXX*/ 2690 /* determine printable or not */ 2691 for (i = 0, p = essid + 2; i < len; i++, p++) { 2692 if (*p < ' ' || *p > 0x7e) 2693 break; 2694 } 2695 if (i == len) { 2696 printf("\""); 2697 for (i = 0, p = essid + 2; i < len; i++, p++) 2698 printf("%c", *p); 2699 printf("\""); 2700 } else { 2701 printf("0x"); 2702 for (i = 0, p = essid + 2; i < len; i++, p++) 2703 printf("%02x", *p); 2704 } 2705 } 2706 2707 #ifdef AWI_DEBUG 2708 static void 2709 awi_dump_pkt(sc, m, rssi) 2710 struct awi_softc *sc; 2711 struct mbuf *m; 2712 int rssi; 2713 { 2714 struct ieee80211_frame *wh; 2715 int i, l; 2716 2717 wh = mtod(m, struct ieee80211_frame *); 2718 2719 if (awi_dump_mask != 0 && 2720 ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK)==IEEE80211_FC1_DIR_NODS) && 2721 ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK)==IEEE80211_FC0_TYPE_MGT)) { 2722 if ((AWI_DUMP_MASK(wh->i_fc[0]) & awi_dump_mask) != 0) 2723 return; 2724 } 2725 if (awi_dump_mask < 0 && 2726 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK)==IEEE80211_FC0_TYPE_DATA) 2727 return; 2728 2729 if (rssi < 0) 2730 printf("tx: "); 2731 else 2732 printf("rx: "); 2733 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { 2734 case IEEE80211_FC1_DIR_NODS: 2735 printf("NODS %s", ether_sprintf(wh->i_addr2)); 2736 printf("->%s", ether_sprintf(wh->i_addr1)); 2737 printf("(%s)", ether_sprintf(wh->i_addr3)); 2738 break; 2739 case IEEE80211_FC1_DIR_TODS: 2740 printf("TODS %s", ether_sprintf(wh->i_addr2)); 2741 printf("->%s", ether_sprintf(wh->i_addr3)); 2742 printf("(%s)", ether_sprintf(wh->i_addr1)); 2743 break; 2744 case IEEE80211_FC1_DIR_FROMDS: 2745 printf("FRDS %s", ether_sprintf(wh->i_addr3)); 2746 printf("->%s", ether_sprintf(wh->i_addr1)); 2747 printf("(%s)", ether_sprintf(wh->i_addr2)); 2748 break; 2749 case IEEE80211_FC1_DIR_DSTODS: 2750 printf("DSDS %s", ether_sprintf((u_int8_t *)&wh[1])); 2751 printf("->%s", ether_sprintf(wh->i_addr3)); 2752 printf("(%s", ether_sprintf(wh->i_addr2)); 2753 printf("->%s)", ether_sprintf(wh->i_addr1)); 2754 break; 2755 } 2756 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 2757 case IEEE80211_FC0_TYPE_DATA: 2758 printf(" data"); 2759 break; 2760 case IEEE80211_FC0_TYPE_MGT: 2761 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 2762 case IEEE80211_FC0_SUBTYPE_PROBE_REQ: 2763 printf(" probe_req"); 2764 break; 2765 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 2766 printf(" probe_resp"); 2767 break; 2768 case IEEE80211_FC0_SUBTYPE_BEACON: 2769 printf(" beacon"); 2770 break; 2771 case IEEE80211_FC0_SUBTYPE_AUTH: 2772 printf(" auth"); 2773 break; 2774 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ: 2775 printf(" assoc_req"); 2776 break; 2777 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 2778 printf(" assoc_resp"); 2779 break; 2780 case IEEE80211_FC0_SUBTYPE_REASSOC_REQ: 2781 printf(" reassoc_req"); 2782 break; 2783 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 2784 printf(" reassoc_resp"); 2785 break; 2786 case IEEE80211_FC0_SUBTYPE_DEAUTH: 2787 printf(" deauth"); 2788 break; 2789 case IEEE80211_FC0_SUBTYPE_DISASSOC: 2790 printf(" disassoc"); 2791 break; 2792 default: 2793 printf(" mgt#%d", 2794 wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK); 2795 break; 2796 } 2797 break; 2798 default: 2799 printf(" type#%d", 2800 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK); 2801 break; 2802 } 2803 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 2804 printf(" WEP"); 2805 if (rssi >= 0) 2806 printf(" +%d", rssi); 2807 printf("\n"); 2808 if (awi_dump_len > 0) { 2809 l = m->m_len; 2810 if (l > awi_dump_len + sizeof(*wh)) 2811 l = awi_dump_len + sizeof(*wh); 2812 i = sizeof(*wh); 2813 if (awi_dump_hdr) 2814 i = 0; 2815 for (; i < l; i++) { 2816 if ((i & 1) == 0) 2817 printf(" "); 2818 printf("%02x", mtod(m, u_int8_t *)[i]); 2819 } 2820 printf("\n"); 2821 } 2822 } 2823 #endif 2824
Indexes created Sun Oct 19 02:09:48 GMT 2025