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sys/dev/ic/awi.c
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1 /* $NetBSD: awi.c,v 1.62 2004/01/16 14:13:15 onoe Exp $ */ 2 3 /*- 4 * Copyright (c) 1999,2000,2001 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@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@NetBSD.org> 85 */ 86 87 #include <sys/cdefs.h> 88 #ifdef __NetBSD__ 89 __KERNEL_RCSID(0, "$NetBSD: awi.c,v 1.62 2004/01/16 14:13:15 onoe Exp $"); 90 #endif 91 #ifdef __FreeBSD__ 92 __FBSDID("$FreeBSD: src/sys/dev/awi/awi.c,v 1.30 2004/01/15 13:30:06 onoe Exp $"); 93 #endif 94 95 #include "opt_inet.h" 96 #ifdef __NetBSD__ 97 #include "bpfilter.h" 98 #endif 99 #ifdef __FreeBSD__ 100 #define NBPFILTER 1 101 #endif 102 103 #include <sys/param.h> 104 #include <sys/systm.h> 105 #include <sys/kernel.h> 106 #include <sys/mbuf.h> 107 #include <sys/malloc.h> 108 #include <sys/proc.h> 109 #include <sys/socket.h> 110 #include <sys/sockio.h> 111 #include <sys/errno.h> 112 #include <sys/endian.h> 113 #ifdef __FreeBSD__ 114 #include <sys/bus.h> 115 #endif 116 #ifdef __NetBSD__ 117 #include <sys/device.h> 118 #endif 119 120 #include <net/if.h> 121 #include <net/if_dl.h> 122 #ifdef __NetBSD__ 123 #include <net/if_ether.h> 124 #endif 125 #ifdef __FreeBSD__ 126 #include <net/ethernet.h> 127 #include <net/if_arp.h> 128 #endif 129 #include <net/if_media.h> 130 #include <net/if_llc.h> 131 132 #include <net80211/ieee80211_var.h> 133 #ifdef __NetBSD__ 134 #include <net80211/ieee80211_compat.h> 135 #endif 136 137 #if NBPFILTER > 0 138 #include <net/bpf.h> 139 #endif 140 141 #include <machine/cpu.h> 142 #include <machine/bus.h> 143 144 #ifdef __NetBSD__ 145 #include <dev/ic/am79c930reg.h> 146 #include <dev/ic/am79c930var.h> 147 #include <dev/ic/awireg.h> 148 #include <dev/ic/awivar.h> 149 #endif 150 #ifdef __FreeBSD__ 151 #include <dev/awi/am79c930reg.h> 152 #include <dev/awi/am79c930var.h> 153 #include <dev/awi/awireg.h> 154 #include <dev/awi/awivar.h> 155 #endif 156 157 #ifdef __FreeBSD__ 158 static void awi_init0(void *); 159 #endif 160 static int awi_init(struct ifnet *); 161 static void awi_stop(struct ifnet *, int); 162 static void awi_start(struct ifnet *); 163 static void awi_watchdog(struct ifnet *); 164 static int awi_ioctl(struct ifnet *, u_long, caddr_t); 165 static int awi_media_change(struct ifnet *); 166 static void awi_media_status(struct ifnet *, struct ifmediareq *); 167 static int awi_mode_init(struct awi_softc *); 168 static void awi_rx_int(struct awi_softc *); 169 static void awi_tx_int(struct awi_softc *); 170 static struct mbuf *awi_devget(struct awi_softc *, u_int32_t, u_int16_t); 171 static int awi_hw_init(struct awi_softc *); 172 static int awi_init_mibs(struct awi_softc *); 173 static int awi_mib(struct awi_softc *, u_int8_t, u_int8_t, int); 174 static int awi_cmd(struct awi_softc *, u_int8_t, int); 175 static int awi_cmd_wait(struct awi_softc *); 176 static void awi_cmd_done(struct awi_softc *); 177 static int awi_next_txd(struct awi_softc *, int, u_int32_t *, u_int32_t *); 178 static int awi_lock(struct awi_softc *); 179 static void awi_unlock(struct awi_softc *); 180 static int awi_intr_lock(struct awi_softc *); 181 static void awi_intr_unlock(struct awi_softc *); 182 static int awi_newstate(struct ieee80211com *, enum ieee80211_state, int); 183 static void awi_recv_mgmt(struct ieee80211com *, struct mbuf *, 184 struct ieee80211_node *, int, int, u_int32_t); 185 static int awi_send_mgmt(struct ieee80211com *, struct ieee80211_node *, int, 186 int); 187 static struct mbuf *awi_ether_encap(struct awi_softc *, struct mbuf *); 188 static struct mbuf *awi_ether_modcap(struct awi_softc *, struct mbuf *); 189 190 /* unaligned little endian access */ 191 #define LE_READ_2(p) \ 192 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)) 193 #define LE_READ_4(p) \ 194 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \ 195 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)) 196 #define LE_WRITE_2(p, v) \ 197 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 198 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff))) 199 #define LE_WRITE_4(p, v) \ 200 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 201 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff)), \ 202 (((u_int8_t *)(p))[2] = (((u_int32_t)(v) >> 16) & 0xff)), \ 203 (((u_int8_t *)(p))[3] = (((u_int32_t)(v) >> 24) & 0xff))) 204 205 struct awi_chanset awi_chanset[] = { 206 /* PHY type domain min max def */ 207 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_JP, 6, 17, 6 }, 208 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_ES, 0, 26, 1 }, 209 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_FR, 0, 32, 1 }, 210 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_US, 0, 77, 1 }, 211 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_CA, 0, 77, 1 }, 212 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_EU, 0, 77, 1 }, 213 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_JP, 14, 14, 14 }, 214 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_ES, 10, 11, 10 }, 215 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_FR, 10, 13, 10 }, 216 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_US, 1, 11, 3 }, 217 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_CA, 1, 11, 3 }, 218 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_EU, 1, 13, 3 }, 219 { 0, 0 } 220 }; 221 222 #ifdef __FreeBSD__ 223 devclass_t awi_devclass; 224 225 #if __FreeBSD_version < 500043 226 static char *ether_sprintf(u_int8_t *); 227 228 static char * 229 ether_sprintf(u_int8_t *enaddr) 230 { 231 static char strbuf[18]; 232 233 sprintf(strbuf, "%6D", enaddr, ":"); 234 return strbuf; 235 } 236 #endif 237 238 #define IFQ_PURGE(ifq) IF_DRAIN(ifq) 239 #define IF_POLL(ifq, m) ((m) = (ifq)->ifq_head) 240 #define IFQ_POLL(ifq, m) IF_POLL((ifq), (m)) 241 #define IFQ_DEQUEUE(ifq, m) IF_DEQUEUE((ifq), (m)) 242 243 #endif 244 245 #ifdef AWI_DEBUG 246 int awi_debug = 0; 247 248 #define DPRINTF(X) if (awi_debug) printf X 249 #define DPRINTF2(X) if (awi_debug > 1) printf X 250 #else 251 #define DPRINTF(X) 252 #define DPRINTF2(X) 253 #endif 254 255 int 256 awi_attach(struct awi_softc *sc) 257 { 258 struct ieee80211com *ic = &sc->sc_ic; 259 struct ifnet *ifp = &ic->ic_if; 260 int s, i, error, nrate; 261 int mword; 262 enum ieee80211_phymode mode; 263 264 s = splnet(); 265 sc->sc_busy = 1; 266 sc->sc_attached = 0; 267 sc->sc_substate = AWI_ST_NONE; 268 if ((error = awi_hw_init(sc)) != 0) { 269 sc->sc_invalid = 1; 270 splx(s); 271 return error; 272 } 273 error = awi_init_mibs(sc); 274 if (error != 0) { 275 sc->sc_invalid = 1; 276 splx(s); 277 return error; 278 } 279 ifp->if_softc = sc; 280 ifp->if_flags = 281 #ifdef IFF_NOTRAILERS 282 IFF_NOTRAILERS | 283 #endif 284 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; 285 ifp->if_ioctl = awi_ioctl; 286 ifp->if_start = awi_start; 287 ifp->if_watchdog = awi_watchdog; 288 #ifdef __NetBSD__ 289 ifp->if_init = awi_init; 290 ifp->if_stop = awi_stop; 291 IFQ_SET_READY(&ifp->if_snd); 292 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 293 #endif 294 #ifdef __FreeBSD__ 295 ifp->if_init = awi_init0; 296 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 297 if_initname(ifp, device_get_name(sc->sc_dev), 298 device_get_unit(sc->sc_dev)); 299 #endif 300 301 ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP; 302 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 303 ic->ic_phytype = IEEE80211_T_FH; 304 mode = IEEE80211_MODE_FH; 305 } else { 306 ic->ic_phytype = IEEE80211_T_DS; 307 ic->ic_caps |= IEEE80211_C_AHDEMO; 308 mode = IEEE80211_MODE_11B; 309 } 310 ic->ic_opmode = IEEE80211_M_STA; 311 nrate = sc->sc_mib_phy.aSuprt_Data_Rates[1]; 312 memcpy(ic->ic_sup_rates[mode].rs_rates, 313 sc->sc_mib_phy.aSuprt_Data_Rates + 2, nrate); 314 ic->ic_sup_rates[mode].rs_nrates = nrate; 315 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address); 316 317 printf("%s: IEEE802.11 %s (firmware %s)\n", ifp->if_xname, 318 (ic->ic_phytype == IEEE80211_T_FH) ? "FH" : "DS", sc->sc_banner); 319 printf("%s: 802.11 address: %s\n", ifp->if_xname, 320 ether_sprintf(ic->ic_myaddr)); 321 322 #ifdef __NetBSD__ 323 if_attach(ifp); 324 #endif 325 ieee80211_ifattach(ifp); 326 327 sc->sc_newstate = ic->ic_newstate; 328 ic->ic_newstate = awi_newstate; 329 330 sc->sc_recv_mgmt = ic->ic_recv_mgmt; 331 ic->ic_recv_mgmt = awi_recv_mgmt; 332 333 sc->sc_send_mgmt = ic->ic_send_mgmt; 334 ic->ic_send_mgmt = awi_send_mgmt; 335 336 ieee80211_media_init(ifp, awi_media_change, awi_media_status); 337 338 /* Melco compatibility mode. */ 339 #define ADD(s, o) ifmedia_add(&ic->ic_media, \ 340 IFM_MAKEWORD(IFM_IEEE80211, (s), (o), 0), 0, NULL) 341 ADD(IFM_AUTO, IFM_FLAG0); 342 343 for (i = 0; i < nrate; i++) { 344 mword = ieee80211_rate2media(ic, 345 ic->ic_sup_rates[mode].rs_rates[i], mode); 346 if (mword == 0) 347 continue; 348 ADD(mword, IFM_FLAG0); 349 } 350 #undef ADD 351 352 #ifdef __NetBSD__ 353 if ((sc->sc_sdhook = shutdownhook_establish(awi_shutdown, sc)) == NULL) 354 printf("%s: WARNING: unable to establish shutdown hook\n", 355 ifp->if_xname); 356 if ((sc->sc_powerhook = powerhook_establish(awi_power, sc)) == NULL) 357 printf("%s: WARNING: unable to establish power hook\n", 358 ifp->if_xname); 359 #endif 360 sc->sc_attached = 1; 361 splx(s); 362 363 /* ready to accept ioctl */ 364 awi_unlock(sc); 365 366 return 0; 367 } 368 369 int 370 awi_detach(struct awi_softc *sc) 371 { 372 struct ifnet *ifp = &sc->sc_ic.ic_if; 373 int s; 374 375 if (!sc->sc_attached) 376 return 0; 377 378 s = splnet(); 379 sc->sc_invalid = 1; 380 awi_stop(ifp, 1); 381 382 while (sc->sc_sleep_cnt > 0) { 383 wakeup(sc); 384 (void)tsleep(sc, PWAIT, "awidet", 1); 385 } 386 sc->sc_attached = 0; 387 ieee80211_ifdetach(ifp); 388 #ifdef __NetBSD__ 389 if_detach(ifp); 390 shutdownhook_disestablish(sc->sc_sdhook); 391 powerhook_disestablish(sc->sc_powerhook); 392 #endif 393 splx(s); 394 return 0; 395 } 396 397 #ifdef __NetBSD__ 398 int 399 awi_activate(struct device *self, enum devact act) 400 { 401 struct awi_softc *sc = (struct awi_softc *)self; 402 struct ifnet *ifp = &sc->sc_ic.ic_if; 403 int s, error = 0; 404 405 s = splnet(); 406 switch (act) { 407 case DVACT_ACTIVATE: 408 error = EOPNOTSUPP; 409 break; 410 case DVACT_DEACTIVATE: 411 sc->sc_invalid = 1; 412 if_deactivate(ifp); 413 break; 414 } 415 splx(s); 416 return error; 417 } 418 419 void 420 awi_power(int why, void *arg) 421 { 422 struct awi_softc *sc = arg; 423 struct ifnet *ifp = &sc->sc_ic.ic_if; 424 int s; 425 int ocansleep; 426 427 DPRINTF(("awi_power: %d\n", why)); 428 s = splnet(); 429 ocansleep = sc->sc_cansleep; 430 sc->sc_cansleep = 0; 431 switch (why) { 432 case PWR_SUSPEND: 433 case PWR_STANDBY: 434 awi_stop(ifp, 1); 435 break; 436 case PWR_RESUME: 437 if (ifp->if_flags & IFF_UP) { 438 awi_init(ifp); 439 (void)awi_intr(sc); /* make sure */ 440 } 441 break; 442 case PWR_SOFTSUSPEND: 443 case PWR_SOFTSTANDBY: 444 case PWR_SOFTRESUME: 445 break; 446 } 447 sc->sc_cansleep = ocansleep; 448 splx(s); 449 } 450 #endif /* __NetBSD__ */ 451 452 void 453 awi_shutdown(void *arg) 454 { 455 struct awi_softc *sc = arg; 456 struct ifnet *ifp = &sc->sc_ic.ic_if; 457 458 if (sc->sc_attached) 459 awi_stop(ifp, 1); 460 } 461 462 int 463 awi_intr(void *arg) 464 { 465 struct awi_softc *sc = arg; 466 u_int16_t status; 467 int handled = 0, ocansleep; 468 #ifdef AWI_DEBUG 469 static const char *intname[] = { 470 "CMD", "RX", "TX", "SCAN_CMPLT", 471 "CFP_START", "DTIM", "CFP_ENDING", "GROGGY", 472 "TXDATA", "TXBCAST", "TXPS", "TXCF", 473 "TXMGT", "#13", "RXDATA", "RXMGT" 474 }; 475 #endif 476 477 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) { 478 DPRINTF(("awi_intr: stray interrupt: " 479 "enabled %d enab_intr %d invalid %d\n", 480 sc->sc_enabled, sc->sc_enab_intr, sc->sc_invalid)); 481 return 0; 482 } 483 484 am79c930_gcr_setbits(&sc->sc_chip, 485 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 486 awi_write_1(sc, AWI_DIS_PWRDN, 1); 487 ocansleep = sc->sc_cansleep; 488 sc->sc_cansleep = 0; 489 490 for (;;) { 491 if (awi_intr_lock(sc) != 0) 492 break; 493 status = awi_read_1(sc, AWI_INTSTAT); 494 awi_write_1(sc, AWI_INTSTAT, 0); 495 awi_write_1(sc, AWI_INTSTAT, 0); 496 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 497 awi_write_1(sc, AWI_INTSTAT2, 0); 498 DELAY(10); 499 awi_intr_unlock(sc); 500 if (!sc->sc_cmd_inprog) 501 status &= ~AWI_INT_CMD; /* make sure */ 502 if (status == 0) 503 break; 504 #ifdef AWI_DEBUG 505 if (awi_debug > 1) { 506 int i; 507 508 printf("awi_intr: status 0x%04x", status); 509 for (i = 0; i < sizeof(intname)/sizeof(intname[0]); 510 i++) { 511 if (status & (1 << i)) 512 printf(" %s", intname[i]); 513 } 514 printf("\n"); 515 } 516 #endif 517 handled = 1; 518 if (status & AWI_INT_RX) 519 awi_rx_int(sc); 520 if (status & AWI_INT_TX) 521 awi_tx_int(sc); 522 if (status & AWI_INT_CMD) 523 awi_cmd_done(sc); 524 if (status & AWI_INT_SCAN_CMPLT) { 525 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN && 526 sc->sc_substate == AWI_ST_NONE) 527 ieee80211_next_scan(&sc->sc_ic.ic_if); 528 } 529 } 530 sc->sc_cansleep = ocansleep; 531 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 532 awi_write_1(sc, AWI_DIS_PWRDN, 0); 533 return handled; 534 } 535 536 #ifdef __FreeBSD__ 537 static void 538 awi_init0(void *arg) 539 { 540 struct awi_softc *sc = arg; 541 542 (void)awi_init(&sc->sc_ic.ic_if); 543 } 544 #endif 545 546 static int 547 awi_init(struct ifnet *ifp) 548 { 549 struct awi_softc *sc = ifp->if_softc; 550 struct ieee80211com *ic = &sc->sc_ic; 551 struct ieee80211_node *ni = ic->ic_bss; 552 struct ieee80211_rateset *rs; 553 int error, rate, i; 554 555 DPRINTF(("awi_init: enabled=%d\n", sc->sc_enabled)); 556 if (sc->sc_enabled) { 557 awi_stop(ifp, 0); 558 } else { 559 if (sc->sc_enable) 560 (*sc->sc_enable)(sc); 561 sc->sc_enabled = 1; 562 if ((error = awi_hw_init(sc)) != 0) { 563 if (sc->sc_disable) 564 (*sc->sc_disable)(sc); 565 sc->sc_enabled = 0; 566 return error; 567 } 568 } 569 ic->ic_state = IEEE80211_S_INIT; 570 571 ic->ic_flags &= ~IEEE80211_F_IBSSON; 572 switch (ic->ic_opmode) { 573 case IEEE80211_M_STA: 574 sc->sc_mib_local.Network_Mode = 1; 575 sc->sc_mib_local.Acting_as_AP = 0; 576 break; 577 case IEEE80211_M_IBSS: 578 ic->ic_flags |= IEEE80211_F_IBSSON; 579 /* FALLTHRU */ 580 case IEEE80211_M_AHDEMO: 581 sc->sc_mib_local.Network_Mode = 0; 582 sc->sc_mib_local.Acting_as_AP = 0; 583 break; 584 case IEEE80211_M_HOSTAP: 585 sc->sc_mib_local.Network_Mode = 1; 586 sc->sc_mib_local.Acting_as_AP = 1; 587 break; 588 case IEEE80211_M_MONITOR: 589 return ENODEV; 590 } 591 #if 0 592 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 593 #endif 594 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 595 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 596 sc->sc_mib_mac.aDesired_ESS_ID[1] = ic->ic_des_esslen; 597 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], ic->ic_des_essid, 598 ic->ic_des_esslen); 599 600 /* configure basic rate */ 601 if (ic->ic_phytype == IEEE80211_T_FH) 602 rs = &ic->ic_sup_rates[IEEE80211_MODE_FH]; 603 else 604 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 605 if (ic->ic_fixed_rate != -1) { 606 rate = rs->rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 607 } else { 608 rate = 0; 609 for (i = 0; i < rs->rs_nrates; i++) { 610 if ((rs->rs_rates[i] & IEEE80211_RATE_BASIC) && 611 rate < (rs->rs_rates[i] & IEEE80211_RATE_VAL)) 612 rate = rs->rs_rates[i] & IEEE80211_RATE_VAL; 613 } 614 } 615 rate *= 5; 616 LE_WRITE_2(&sc->sc_mib_mac.aStation_Basic_Rate, rate); 617 618 if ((error = awi_mode_init(sc)) != 0) { 619 DPRINTF(("awi_init: awi_mode_init failed %d\n", error)); 620 awi_stop(ifp, 1); 621 return error; 622 } 623 624 /* start transmitter */ 625 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 626 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 627 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 628 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 629 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 630 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 631 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 632 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 633 awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); 634 awi_write_4(sc, AWI_CA_TX_MGT, 0); 635 awi_write_4(sc, AWI_CA_TX_BCAST, 0); 636 awi_write_4(sc, AWI_CA_TX_PS, 0); 637 awi_write_4(sc, AWI_CA_TX_CF, 0); 638 if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { 639 DPRINTF(("awi_init: failed to start transmitter: %d\n", error)); 640 awi_stop(ifp, 1); 641 return error; 642 } 643 644 /* start receiver */ 645 if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { 646 DPRINTF(("awi_init: failed to start receiver: %d\n", error)); 647 awi_stop(ifp, 1); 648 return error; 649 } 650 sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); 651 sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); 652 653 ifp->if_flags |= IFF_RUNNING; 654 ifp->if_flags &= ~IFF_OACTIVE; 655 ic->ic_state = IEEE80211_S_INIT; 656 657 if (ic->ic_opmode == IEEE80211_M_AHDEMO || 658 ic->ic_opmode == IEEE80211_M_HOSTAP) { 659 ni->ni_chan = ic->ic_ibss_chan; 660 ni->ni_intval = ic->ic_lintval; 661 ni->ni_rssi = 0; 662 ni->ni_rstamp = 0; 663 memset(ni->ni_tstamp, 0, sizeof(ni->ni_tstamp)); 664 ni->ni_rates = 665 ic->ic_sup_rates[ieee80211_chan2mode(ic, ni->ni_chan)]; 666 IEEE80211_ADDR_COPY(ni->ni_macaddr, ic->ic_myaddr); 667 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 668 IEEE80211_ADDR_COPY(ni->ni_bssid, ic->ic_myaddr); 669 ni->ni_esslen = ic->ic_des_esslen; 670 memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); 671 ni->ni_capinfo = IEEE80211_CAPINFO_ESS; 672 if (ic->ic_phytype == IEEE80211_T_FH) { 673 ni->ni_fhdwell = 200; /* XXX */ 674 ni->ni_fhindex = 1; 675 } 676 } else { 677 ni->ni_capinfo = IEEE80211_CAPINFO_IBSS; 678 memset(ni->ni_bssid, 0, IEEE80211_ADDR_LEN); 679 ni->ni_esslen = 0; 680 } 681 if (ic->ic_flags & IEEE80211_F_WEPON) 682 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 683 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 684 ic->ic_flags |= IEEE80211_F_SIBSS; 685 ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ 686 sc->sc_substate = AWI_ST_NONE; 687 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 688 } else { 689 /* XXX check sc->sc_cur_chan */ 690 ni->ni_chan = &ic->ic_channels[sc->sc_cur_chan]; 691 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 692 } 693 return 0; 694 } 695 696 static void 697 awi_stop(struct ifnet *ifp, int disable) 698 { 699 struct awi_softc *sc = ifp->if_softc; 700 701 if (!sc->sc_enabled) 702 return; 703 704 DPRINTF(("awi_stop(%d)\n", disable)); 705 706 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); 707 708 if (!sc->sc_invalid) { 709 if (sc->sc_cmd_inprog) 710 (void)awi_cmd_wait(sc); 711 (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); 712 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 713 awi_write_1(sc, AWI_CA_FTX_DATA, 1); 714 awi_write_1(sc, AWI_CA_FTX_MGT, 0); 715 awi_write_1(sc, AWI_CA_FTX_BCAST, 0); 716 awi_write_1(sc, AWI_CA_FTX_PS, 0); 717 awi_write_1(sc, AWI_CA_FTX_CF, 0); 718 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); 719 } 720 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 721 ifp->if_timer = 0; 722 sc->sc_tx_timer = sc->sc_rx_timer = 0; 723 if (sc->sc_rxpend != NULL) { 724 m_freem(sc->sc_rxpend); 725 sc->sc_rxpend = NULL; 726 } 727 IFQ_PURGE(&ifp->if_snd); 728 729 if (disable) { 730 if (!sc->sc_invalid) 731 am79c930_gcr_setbits(&sc->sc_chip, 732 AM79C930_GCR_CORESET); 733 if (sc->sc_disable) 734 (*sc->sc_disable)(sc); 735 sc->sc_enabled = 0; 736 } 737 } 738 739 static void 740 awi_start(struct ifnet *ifp) 741 { 742 struct awi_softc *sc = ifp->if_softc; 743 struct ieee80211com *ic = &sc->sc_ic; 744 struct ieee80211_node *ni; 745 struct ieee80211_frame *wh; 746 struct mbuf *m, *m0; 747 int len, dowep; 748 u_int32_t txd, frame, ntxd; 749 u_int8_t rate; 750 751 if (!sc->sc_enabled || sc->sc_invalid) 752 return; 753 754 for (;;) { 755 txd = sc->sc_txnext; 756 IF_POLL(&ic->ic_mgtq, m0); 757 dowep = 0; 758 if (m0 != NULL) { 759 len = m0->m_pkthdr.len; 760 if (awi_next_txd(sc, len, &frame, &ntxd)) { 761 ifp->if_flags |= IFF_OACTIVE; 762 break; 763 } 764 IF_DEQUEUE(&ic->ic_mgtq, m0); 765 } else { 766 if (ic->ic_state != IEEE80211_S_RUN) 767 break; 768 IFQ_POLL(&ifp->if_snd, m0); 769 if (m0 == NULL) 770 break; 771 /* 772 * Need to calculate the real length to determine 773 * if the transmit buffer has a room for the packet. 774 */ 775 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 776 if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) 777 len += sizeof(struct llc) - 778 sizeof(struct ether_header); 779 if (ic->ic_flags & IEEE80211_F_WEPON) { 780 dowep = 1; 781 len += IEEE80211_WEP_IVLEN + 782 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 783 } 784 if (awi_next_txd(sc, len, &frame, &ntxd)) { 785 ifp->if_flags |= IFF_OACTIVE; 786 break; 787 } 788 IFQ_DEQUEUE(&ifp->if_snd, m0); 789 ifp->if_opackets++; 790 #if NBPFILTER > 0 791 if (ifp->if_bpf) 792 bpf_mtap(ifp->if_bpf, m0); 793 #endif 794 if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) 795 m0 = awi_ether_encap(sc, m0); 796 else 797 m0 = ieee80211_encap(ifp, m0, &ni); 798 if (m0 == NULL) { 799 ifp->if_oerrors++; 800 continue; 801 } 802 if (ni != NULL && ni != ic->ic_bss) 803 ieee80211_free_node(ic, ni); 804 wh = mtod(m0, struct ieee80211_frame *); 805 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) && 806 (ic->ic_opmode == IEEE80211_M_HOSTAP || 807 ic->ic_opmode == IEEE80211_M_IBSS) && 808 sc->sc_adhoc_ap == 0 && 809 (ifp->if_flags & IFF_LINK0) == 0 && 810 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 811 IEEE80211_FC0_TYPE_DATA && ni == NULL) { 812 m_freem(m0); 813 ifp->if_oerrors++; 814 continue; 815 } 816 } 817 #if NBPFILTER > 0 818 if (ic->ic_rawbpf) 819 bpf_mtap(ic->ic_rawbpf, m0); 820 #endif 821 if (dowep) { 822 if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) { 823 ifp->if_oerrors++; 824 continue; 825 } 826 } 827 #ifdef DIAGNOSTIC 828 if (m0->m_pkthdr.len != len) { 829 printf("%s: length %d should be %d\n", 830 ic->ic_if.if_xname, m0->m_pkthdr.len, len); 831 m_freem(m0); 832 ifp->if_oerrors++; 833 continue; 834 } 835 #endif 836 837 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 838 ieee80211_dump_pkt(m0->m_data, m0->m_len, 839 ic->ic_bss->ni_rates. 840 rs_rates[ic->ic_bss->ni_txrate] & 841 IEEE80211_RATE_VAL, -1); 842 843 for (m = m0, len = 0; m != NULL; m = m->m_next) { 844 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 845 m->m_len); 846 len += m->m_len; 847 } 848 m_freem(m0); 849 rate = (ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 850 IEEE80211_RATE_VAL) * 5; 851 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 852 awi_write_4(sc, txd + AWI_TXD_START, frame); 853 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 854 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 855 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 856 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 857 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 858 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 859 sc->sc_txnext = ntxd; 860 861 sc->sc_tx_timer = 5; 862 ifp->if_timer = 1; 863 } 864 } 865 866 static void 867 awi_watchdog(struct ifnet *ifp) 868 { 869 struct awi_softc *sc = ifp->if_softc; 870 u_int32_t prevdone; 871 int ocansleep; 872 873 ifp->if_timer = 0; 874 if (!sc->sc_enabled || sc->sc_invalid) 875 return; 876 877 ocansleep = sc->sc_cansleep; 878 sc->sc_cansleep = 0; 879 if (sc->sc_tx_timer) { 880 if (--sc->sc_tx_timer == 0) { 881 printf("%s: device timeout\n", ifp->if_xname); 882 prevdone = sc->sc_txdone; 883 awi_tx_int(sc); 884 if (sc->sc_txdone == prevdone) { 885 ifp->if_oerrors++; 886 awi_init(ifp); 887 goto out; 888 } 889 } 890 ifp->if_timer = 1; 891 } 892 if (sc->sc_rx_timer) { 893 if (--sc->sc_rx_timer == 0) { 894 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 895 ieee80211_new_state(&sc->sc_ic, 896 IEEE80211_S_SCAN, -1); 897 goto out; 898 } 899 } else 900 ifp->if_timer = 1; 901 } 902 /* TODO: rate control */ 903 ieee80211_watchdog(ifp); 904 out: 905 sc->sc_cansleep = ocansleep; 906 } 907 908 static int 909 awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 910 { 911 struct awi_softc *sc = ifp->if_softc; 912 struct ifreq *ifr = (struct ifreq *)data; 913 int s, error; 914 915 s = splnet(); 916 /* serialize ioctl, since we may sleep */ 917 if ((error = awi_lock(sc)) != 0) 918 goto cantlock; 919 920 switch (cmd) { 921 case SIOCSIFFLAGS: 922 if (ifp->if_flags & IFF_UP) { 923 if (sc->sc_enabled) { 924 /* 925 * To avoid rescanning another access point, 926 * do not call awi_init() here. Instead, 927 * only reflect promisc mode settings. 928 */ 929 error = awi_mode_init(sc); 930 } else 931 error = awi_init(ifp); 932 } else if (sc->sc_enabled) 933 awi_stop(ifp, 1); 934 break; 935 case SIOCSIFMEDIA: 936 case SIOCGIFMEDIA: 937 error = ifmedia_ioctl(ifp, ifr, &sc->sc_ic.ic_media, cmd); 938 break; 939 case SIOCADDMULTI: 940 case SIOCDELMULTI: 941 #ifdef __FreeBSD__ 942 error = ENETRESET; /* XXX */ 943 #else 944 error = (cmd == SIOCADDMULTI) ? 945 ether_addmulti(ifr, &sc->sc_ic.ic_ec) : 946 ether_delmulti(ifr, &sc->sc_ic.ic_ec); 947 #endif 948 if (error == ENETRESET) { 949 /* do not rescan */ 950 if (sc->sc_enabled) 951 error = awi_mode_init(sc); 952 else 953 error = 0; 954 } 955 break; 956 default: 957 error = ieee80211_ioctl(ifp, cmd, data); 958 if (error == ENETRESET) { 959 if (sc->sc_enabled) 960 error = awi_init(ifp); 961 else 962 error = 0; 963 } 964 break; 965 } 966 awi_unlock(sc); 967 cantlock: 968 splx(s); 969 return error; 970 } 971 972 /* 973 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 974 * 975 * TBD factor with ieee80211_media_change 976 */ 977 static int 978 awi_media_change(struct ifnet *ifp) 979 { 980 struct awi_softc *sc = ifp->if_softc; 981 struct ieee80211com *ic = &sc->sc_ic; 982 struct ifmedia_entry *ime; 983 enum ieee80211_opmode newmode; 984 int i, rate, newadhoc_ap, error = 0; 985 986 ime = ic->ic_media.ifm_cur; 987 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 988 i = -1; 989 } else { 990 struct ieee80211_rateset *rs = 991 &ic->ic_sup_rates[(ic->ic_phytype == IEEE80211_T_FH) 992 ? IEEE80211_MODE_FH : IEEE80211_MODE_11B]; 993 rate = ieee80211_media2rate(ime->ifm_media); 994 if (rate == 0) 995 return EINVAL; 996 for (i = 0; i < rs->rs_nrates; i++) { 997 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) 998 break; 999 } 1000 if (i == rs->rs_nrates) 1001 return EINVAL; 1002 } 1003 if (ic->ic_fixed_rate != i) { 1004 ic->ic_fixed_rate = i; 1005 error = ENETRESET; 1006 } 1007 1008 /* 1009 * combination of mediaopt 1010 * 1011 * hostap adhoc flag0 opmode adhoc_ap comment 1012 * + - - HOSTAP 0 HostAP 1013 * - + - IBSS 0 IBSS 1014 * - + + AHDEMO 0 WaveLAN adhoc 1015 * - - + IBSS 1 Melco old Sta 1016 * also LINK0 1017 * - - - STA 0 Infra Station 1018 */ 1019 newadhoc_ap = 0; 1020 if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 1021 newmode = IEEE80211_M_HOSTAP; 1022 else if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 1023 if (ic->ic_phytype == IEEE80211_T_DS && 1024 (ime->ifm_media & IFM_FLAG0)) 1025 newmode = IEEE80211_M_AHDEMO; 1026 else 1027 newmode = IEEE80211_M_IBSS; 1028 } else if (ime->ifm_media & IFM_FLAG0) { 1029 newmode = IEEE80211_M_IBSS; 1030 newadhoc_ap = 1; 1031 } else 1032 newmode = IEEE80211_M_STA; 1033 if (ic->ic_opmode != newmode || sc->sc_adhoc_ap != newadhoc_ap) { 1034 ic->ic_opmode = newmode; 1035 sc->sc_adhoc_ap = newadhoc_ap; 1036 error = ENETRESET; 1037 } 1038 1039 if (error == ENETRESET) { 1040 if (sc->sc_enabled) 1041 error = awi_init(ifp); 1042 else 1043 error = 0; 1044 } 1045 return error; 1046 } 1047 1048 static void 1049 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1050 { 1051 struct awi_softc *sc = ifp->if_softc; 1052 struct ieee80211com *ic = &sc->sc_ic; 1053 int rate; 1054 enum ieee80211_phymode mode; 1055 1056 imr->ifm_status = IFM_AVALID; 1057 if (ic->ic_state == IEEE80211_S_RUN) 1058 imr->ifm_status |= IFM_ACTIVE; 1059 imr->ifm_active = IFM_IEEE80211; 1060 if (ic->ic_phytype == IEEE80211_T_FH) 1061 mode = IEEE80211_MODE_FH; 1062 else 1063 mode = IEEE80211_MODE_11B; 1064 if (ic->ic_state == IEEE80211_S_RUN) { 1065 rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 1066 IEEE80211_RATE_VAL; 1067 } else { 1068 if (ic->ic_fixed_rate == -1) 1069 rate = 0; 1070 else 1071 rate = ic->ic_sup_rates[mode]. 1072 rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 1073 } 1074 imr->ifm_active |= ieee80211_rate2media(ic, rate, mode); 1075 switch (ic->ic_opmode) { 1076 case IEEE80211_M_MONITOR: /* we should never reach here */ 1077 break; 1078 case IEEE80211_M_STA: 1079 break; 1080 case IEEE80211_M_IBSS: 1081 if (sc->sc_adhoc_ap) 1082 imr->ifm_active |= IFM_FLAG0; 1083 else 1084 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1085 break; 1086 case IEEE80211_M_AHDEMO: 1087 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 1088 break; 1089 case IEEE80211_M_HOSTAP: 1090 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1091 break; 1092 } 1093 } 1094 1095 static int 1096 awi_mode_init(struct awi_softc *sc) 1097 { 1098 struct ifnet *ifp = &sc->sc_ic.ic_if; 1099 int n, error; 1100 #ifdef __FreeBSD__ 1101 struct ifmultiaddr *ifma; 1102 #else 1103 struct ether_multi *enm; 1104 struct ether_multistep step; 1105 #endif 1106 1107 /* reinitialize muticast filter */ 1108 n = 0; 1109 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 1110 if (sc->sc_ic.ic_opmode != IEEE80211_M_HOSTAP && 1111 (ifp->if_flags & IFF_PROMISC)) { 1112 sc->sc_mib_mac.aPromiscuous_Enable = 1; 1113 goto set_mib; 1114 } 1115 sc->sc_mib_mac.aPromiscuous_Enable = 0; 1116 #ifdef __FreeBSD__ 1117 if (ifp->if_amcount != 0) 1118 goto set_mib; 1119 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1120 if (ifma->ifma_addr->sa_family != AF_LINK) 1121 continue; 1122 if (n == AWI_GROUP_ADDR_SIZE) 1123 goto set_mib; 1124 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 1125 LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 1126 n++; 1127 } 1128 #else 1129 ETHER_FIRST_MULTI(step, &sc->sc_ic.ic_ec, enm); 1130 while (enm != NULL) { 1131 if (n == AWI_GROUP_ADDR_SIZE || 1132 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) 1133 goto set_mib; 1134 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 1135 enm->enm_addrlo); 1136 n++; 1137 ETHER_NEXT_MULTI(step, enm); 1138 } 1139 #endif 1140 for (; n < AWI_GROUP_ADDR_SIZE; n++) 1141 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, 1142 IEEE80211_ADDR_LEN); 1143 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1144 1145 set_mib: 1146 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 1147 ifp->if_flags &= ~IFF_ALLMULTI; 1148 else 1149 ifp->if_flags |= IFF_ALLMULTI; 1150 sc->sc_mib_mgt.Wep_Required = 1151 (sc->sc_ic.ic_flags & IEEE80211_F_WEPON) ? AWI_WEP_ON : AWI_WEP_OFF; 1152 1153 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1154 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1155 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1156 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1157 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1158 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 1159 return error; 1160 } 1161 return 0; 1162 } 1163 1164 static void 1165 awi_rx_int(struct awi_softc *sc) 1166 { 1167 struct ieee80211com *ic = &sc->sc_ic; 1168 struct ifnet *ifp = &ic->ic_if; 1169 struct ieee80211_frame *wh; 1170 struct ieee80211_node *ni; 1171 u_int8_t state, rate, rssi; 1172 u_int16_t len; 1173 u_int32_t frame, next, rstamp, rxoff; 1174 struct mbuf *m; 1175 1176 rxoff = sc->sc_rxdoff; 1177 for (;;) { 1178 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1179 if (state & AWI_RXD_ST_OWN) 1180 break; 1181 if (!(state & AWI_RXD_ST_CONSUMED)) { 1182 if (sc->sc_substate != AWI_ST_NONE) 1183 goto rx_next; 1184 if (state & AWI_RXD_ST_RXERROR) { 1185 ifp->if_ierrors++; 1186 goto rx_next; 1187 } 1188 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1189 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1190 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1191 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1192 0x7fff; 1193 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1194 m = awi_devget(sc, frame, len); 1195 if (m == NULL) { 1196 ifp->if_ierrors++; 1197 goto rx_next; 1198 } 1199 if (state & AWI_RXD_ST_LF) { 1200 /* TODO check my bss */ 1201 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1202 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1203 sc->sc_rx_timer = 10; 1204 ifp->if_timer = 1; 1205 } 1206 if ((ifp->if_flags & IFF_DEBUG) && 1207 (ifp->if_flags & IFF_LINK2)) 1208 ieee80211_dump_pkt(m->m_data, m->m_len, 1209 rate / 5, rssi); 1210 if ((ifp->if_flags & IFF_LINK0) || 1211 sc->sc_adhoc_ap) 1212 m = awi_ether_modcap(sc, m); 1213 else 1214 m = m_pullup(m, sizeof(*wh)); 1215 if (m == NULL) { 1216 ifp->if_ierrors++; 1217 goto rx_next; 1218 } 1219 wh = mtod(m, struct ieee80211_frame *); 1220 #ifdef __NetBSD__ 1221 ni = ieee80211_find_rxnode(ic, wh); 1222 #else 1223 if (ic->ic_opmode != IEEE80211_M_STA) { 1224 ni = ieee80211_find_node(ic, 1225 wh->i_addr2); 1226 if (ni == NULL) 1227 ni = ieee80211_ref_node( 1228 ic->ic_bss); 1229 } else 1230 ni = ieee80211_ref_node(ic->ic_bss); 1231 #endif 1232 ieee80211_input(ifp, m, ni, rssi, rstamp); 1233 /* 1234 * The frame may have caused the 1235 * node to be marked for reclamation 1236 * (e.g. in response to a DEAUTH 1237 * message) so use free_node here 1238 * instead of unref_node. 1239 */ 1240 if (ni == ic->ic_bss) 1241 ieee80211_unref_node(&ni); 1242 else 1243 ieee80211_free_node(ic, ni); 1244 } else 1245 sc->sc_rxpend = m; 1246 rx_next: 1247 state |= AWI_RXD_ST_CONSUMED; 1248 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1249 } 1250 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1251 if (next & AWI_RXD_NEXT_LAST) 1252 break; 1253 /* make sure the next pointer is correct */ 1254 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1255 break; 1256 state |= AWI_RXD_ST_OWN; 1257 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1258 rxoff = next & 0x7fff; 1259 } 1260 sc->sc_rxdoff = rxoff; 1261 } 1262 1263 static void 1264 awi_tx_int(struct awi_softc *sc) 1265 { 1266 struct ifnet *ifp = &sc->sc_ic.ic_if; 1267 u_int8_t flags; 1268 1269 while (sc->sc_txdone != sc->sc_txnext) { 1270 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1271 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1272 break; 1273 if (flags & AWI_TXD_ST_ERROR) 1274 ifp->if_oerrors++; 1275 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1276 0x7fff; 1277 } 1278 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1279 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1280 sc->sc_tx_timer = 0; 1281 ifp->if_flags &= ~IFF_OACTIVE; 1282 awi_start(ifp); 1283 } 1284 1285 static struct mbuf * 1286 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1287 { 1288 struct ifnet *ifp = &sc->sc_ic.ic_if; 1289 struct mbuf *m; 1290 struct mbuf *top, **mp; 1291 u_int tlen; 1292 1293 top = sc->sc_rxpend; 1294 mp = ⊤ 1295 if (top != NULL) { 1296 sc->sc_rxpend = NULL; 1297 top->m_pkthdr.len += len; 1298 m = top; 1299 while (*mp != NULL) { 1300 m = *mp; 1301 mp = &m->m_next; 1302 } 1303 if (m->m_flags & M_EXT) 1304 tlen = m->m_ext.ext_size; 1305 else if (m->m_flags & M_PKTHDR) 1306 tlen = MHLEN; 1307 else 1308 tlen = MLEN; 1309 tlen -= m->m_len; 1310 if (tlen > len) 1311 tlen = len; 1312 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1313 off += tlen; 1314 len -= tlen; 1315 } 1316 1317 while (len > 0) { 1318 if (top == NULL) { 1319 MGETHDR(m, M_DONTWAIT, MT_DATA); 1320 if (m == NULL) 1321 return NULL; 1322 m->m_pkthdr.rcvif = ifp; 1323 m->m_pkthdr.len = len; 1324 m->m_len = MHLEN; 1325 m->m_flags |= M_HASFCS; 1326 } else { 1327 MGET(m, M_DONTWAIT, MT_DATA); 1328 if (m == NULL) { 1329 m_freem(top); 1330 return NULL; 1331 } 1332 m->m_len = MLEN; 1333 } 1334 if (len >= MINCLSIZE) { 1335 MCLGET(m, M_DONTWAIT); 1336 if (m->m_flags & M_EXT) 1337 m->m_len = m->m_ext.ext_size; 1338 } 1339 if (top == NULL) { 1340 int hdrlen = sizeof(struct ieee80211_frame) + 1341 sizeof(struct llc); 1342 caddr_t newdata = (caddr_t) 1343 ALIGN(m->m_data + hdrlen) - hdrlen; 1344 m->m_len -= newdata - m->m_data; 1345 m->m_data = newdata; 1346 } 1347 if (m->m_len > len) 1348 m->m_len = len; 1349 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1350 off += m->m_len; 1351 len -= m->m_len; 1352 *mp = m; 1353 mp = &m->m_next; 1354 } 1355 return top; 1356 } 1357 1358 /* 1359 * Initialize hardware and start firmware to accept commands. 1360 * Called everytime after power on firmware. 1361 */ 1362 1363 static int 1364 awi_hw_init(struct awi_softc *sc) 1365 { 1366 u_int8_t status; 1367 u_int16_t intmask; 1368 int i, error; 1369 1370 sc->sc_enab_intr = 0; 1371 sc->sc_invalid = 0; /* XXX: really? */ 1372 awi_drvstate(sc, AWI_DRV_RESET); 1373 1374 /* reset firmware */ 1375 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1376 DELAY(100); 1377 awi_write_1(sc, AWI_SELFTEST, 0); 1378 awi_write_1(sc, AWI_CMD, 0); 1379 awi_write_1(sc, AWI_BANNER, 0); 1380 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1381 DELAY(100); 1382 1383 /* wait for selftest completion */ 1384 for (i = 0; ; i++) { 1385 if (sc->sc_invalid) 1386 return ENXIO; 1387 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1388 printf("%s: failed to complete selftest (timeout)\n", 1389 sc->sc_ic.ic_if.if_xname); 1390 return ENXIO; 1391 } 1392 status = awi_read_1(sc, AWI_SELFTEST); 1393 if ((status & 0xf0) == 0xf0) 1394 break; 1395 if (sc->sc_cansleep) { 1396 sc->sc_sleep_cnt++; 1397 (void)tsleep(sc, PWAIT, "awitst", 1); 1398 sc->sc_sleep_cnt--; 1399 } else { 1400 DELAY(1000*1000/hz); 1401 } 1402 } 1403 if (status != AWI_SELFTEST_PASSED) { 1404 printf("%s: failed to complete selftest (code %x)\n", 1405 sc->sc_ic.ic_if.if_xname, status); 1406 return ENXIO; 1407 } 1408 1409 /* check banner to confirm firmware write it */ 1410 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1411 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1412 printf("%s: failed to complete selftest (bad banner)\n", 1413 sc->sc_ic.ic_if.if_xname); 1414 for (i = 0; i < AWI_BANNER_LEN; i++) 1415 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1416 printf("\n"); 1417 return ENXIO; 1418 } 1419 1420 /* initializing interrupt */ 1421 sc->sc_enab_intr = 1; 1422 error = awi_intr_lock(sc); 1423 if (error) 1424 return error; 1425 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1426 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1427 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1428 awi_write_1(sc, AWI_INTMASK2, 0); 1429 awi_write_1(sc, AWI_INTSTAT, 0); 1430 awi_write_1(sc, AWI_INTSTAT2, 0); 1431 awi_intr_unlock(sc); 1432 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1433 1434 /* issuing interface test command */ 1435 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1436 if (error) { 1437 printf("%s: failed to complete selftest", 1438 sc->sc_ic.ic_if.if_xname); 1439 if (error == ENXIO) 1440 printf(" (no hardware)\n"); 1441 else if (error != EWOULDBLOCK) 1442 printf(" (error %d)\n", error); 1443 else if (sc->sc_cansleep) 1444 printf(" (lost interrupt)\n"); 1445 else 1446 printf(" (command timeout)\n"); 1447 return error; 1448 } 1449 1450 /* Initialize VBM */ 1451 awi_write_1(sc, AWI_VBM_OFFSET, 0); 1452 awi_write_1(sc, AWI_VBM_LENGTH, 1); 1453 awi_write_1(sc, AWI_VBM_BITMAP, 0); 1454 return 0; 1455 } 1456 1457 /* 1458 * Extract the factory default MIB value from firmware and assign the driver 1459 * default value. 1460 * Called once at attaching the interface. 1461 */ 1462 1463 static int 1464 awi_init_mibs(struct awi_softc *sc) 1465 { 1466 int chan, i, error; 1467 struct ieee80211com *ic = &sc->sc_ic; 1468 struct awi_chanset *cs; 1469 1470 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1471 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1472 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1473 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1474 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1475 printf("%s: failed to get default mib value (error %d)\n", 1476 ic->ic_if.if_xname, error); 1477 return error; 1478 } 1479 1480 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1481 for (cs = awi_chanset; ; cs++) { 1482 if (cs->cs_type == 0) { 1483 printf("%s: failed to set available channel\n", 1484 ic->ic_if.if_xname); 1485 return ENXIO; 1486 } 1487 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1488 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1489 break; 1490 } 1491 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1492 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1493 chan = IEEE80211_FH_CHAN(i % 3 + 1, i); 1494 setbit(sc->sc_ic.ic_chan_avail, chan); 1495 /* XXX for FHSS, does frequency matter? */ 1496 ic->ic_channels[chan].ic_freq = 0; 1497 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1498 /* 1499 * According to the IEEE 802.11 specification, 1500 * hop pattern parameter for FH phy should be 1501 * incremented by 3 for given hop chanset, i.e., 1502 * the chanset parameter is calculated for given 1503 * hop patter. However, BayStack 650 Access Points 1504 * apparently use fixed hop chanset parameter value 1505 * 1 for any hop pattern. So we also try this 1506 * combination of hop chanset and pattern. 1507 */ 1508 chan = IEEE80211_FH_CHAN(1, i); 1509 setbit(sc->sc_ic.ic_chan_avail, chan); 1510 ic->ic_channels[chan].ic_freq = 0; /* XXX */ 1511 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1512 } 1513 } else { 1514 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1515 setbit(sc->sc_ic.ic_chan_avail, i); 1516 ic->ic_channels[i].ic_freq = 1517 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 1518 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 1519 } 1520 } 1521 sc->sc_cur_chan = cs->cs_def; 1522 ic->ic_ibss_chan = &ic->ic_channels[cs->cs_def]; 1523 1524 sc->sc_mib_local.Fragmentation_Dis = 1; 1525 sc->sc_mib_local.Add_PLCP_Dis = 0; 1526 sc->sc_mib_local.MAC_Hdr_Prsv = 0; 1527 sc->sc_mib_local.Rx_Mgmt_Que_En = 0; 1528 sc->sc_mib_local.Re_Assembly_Dis = 1; 1529 sc->sc_mib_local.Strip_PLCP_Dis = 0; 1530 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1531 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1532 sc->sc_mib_local.Check_Seq_Cntl_Dis = 0; 1533 sc->sc_mib_local.Flush_CFP_Queue_On_CF_End = 0; 1534 sc->sc_mib_local.Network_Mode = 1; 1535 sc->sc_mib_local.PWD_Lvl = 0; 1536 sc->sc_mib_local.CFP_Mode = 0; 1537 1538 /* allocate buffers */ 1539 sc->sc_txbase = AWI_BUFFERS; 1540 sc->sc_txend = sc->sc_txbase + 1541 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1542 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1543 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1544 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1545 sc->sc_txend - sc->sc_txbase); 1546 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1547 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1548 AWI_BUFFERS_END - sc->sc_txend); 1549 sc->sc_mib_local.Acting_as_AP = 0; 1550 sc->sc_mib_local.Fill_CFP = 0; 1551 1552 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1553 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1554 1555 sc->sc_mib_mgt.aPower_Mgt_Mode = 0; 1556 sc->sc_mib_mgt.aDTIM_Period = 1; 1557 LE_WRITE_2(&sc->sc_mib_mgt.aATIM_Window, 0); 1558 return 0; 1559 } 1560 1561 static int 1562 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1563 { 1564 int error; 1565 u_int8_t size, *ptr; 1566 1567 switch (mib) { 1568 case AWI_MIB_LOCAL: 1569 ptr = (u_int8_t *)&sc->sc_mib_local; 1570 size = sizeof(sc->sc_mib_local); 1571 break; 1572 case AWI_MIB_ADDR: 1573 ptr = (u_int8_t *)&sc->sc_mib_addr; 1574 size = sizeof(sc->sc_mib_addr); 1575 break; 1576 case AWI_MIB_MAC: 1577 ptr = (u_int8_t *)&sc->sc_mib_mac; 1578 size = sizeof(sc->sc_mib_mac); 1579 break; 1580 case AWI_MIB_STAT: 1581 ptr = (u_int8_t *)&sc->sc_mib_stat; 1582 size = sizeof(sc->sc_mib_stat); 1583 break; 1584 case AWI_MIB_MGT: 1585 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1586 size = sizeof(sc->sc_mib_mgt); 1587 break; 1588 case AWI_MIB_PHY: 1589 ptr = (u_int8_t *)&sc->sc_mib_phy; 1590 size = sizeof(sc->sc_mib_phy); 1591 break; 1592 default: 1593 return EINVAL; 1594 } 1595 if (sc->sc_cmd_inprog) { 1596 if ((error = awi_cmd_wait(sc)) != 0) { 1597 if (error == EWOULDBLOCK) 1598 DPRINTF(("awi_mib: cmd %d inprog", 1599 sc->sc_cmd_inprog)); 1600 return error; 1601 } 1602 } 1603 sc->sc_cmd_inprog = cmd; 1604 if (cmd == AWI_CMD_SET_MIB) 1605 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1606 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1607 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1608 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1609 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1610 return error; 1611 if (cmd == AWI_CMD_GET_MIB) { 1612 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1613 #ifdef AWI_DEBUG 1614 if (awi_debug) { 1615 int i; 1616 1617 printf("awi_mib: #%d:", mib); 1618 for (i = 0; i < size; i++) 1619 printf(" %02x", ptr[i]); 1620 printf("\n"); 1621 } 1622 #endif 1623 } 1624 return 0; 1625 } 1626 1627 static int 1628 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1629 { 1630 u_int8_t status; 1631 int error = 0; 1632 #ifdef AWI_DEBUG 1633 static const char *cmdname[] = { 1634 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1635 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1636 }; 1637 #endif 1638 1639 #ifdef AWI_DEBUG 1640 if (awi_debug > 1) { 1641 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1642 printf("awi_cmd: #%d", cmd); 1643 else 1644 printf("awi_cmd: %s", cmdname[cmd]); 1645 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1646 } 1647 #endif 1648 sc->sc_cmd_inprog = cmd; 1649 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1650 awi_write_1(sc, AWI_CMD, cmd); 1651 if (wflag == AWI_NOWAIT) 1652 return EINPROGRESS; 1653 if ((error = awi_cmd_wait(sc)) != 0) 1654 return error; 1655 status = awi_read_1(sc, AWI_CMD_STATUS); 1656 awi_write_1(sc, AWI_CMD, 0); 1657 switch (status) { 1658 case AWI_STAT_OK: 1659 break; 1660 case AWI_STAT_BADPARM: 1661 return EINVAL; 1662 default: 1663 printf("%s: command %d failed %x\n", 1664 sc->sc_ic.ic_if.if_xname, cmd, status); 1665 return ENXIO; 1666 } 1667 return 0; 1668 } 1669 1670 static int 1671 awi_cmd_wait(struct awi_softc *sc) 1672 { 1673 int i, error = 0; 1674 1675 i = 0; 1676 while (sc->sc_cmd_inprog) { 1677 if (sc->sc_invalid) 1678 return ENXIO; 1679 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1680 printf("%s: failed to access hardware\n", 1681 sc->sc_ic.ic_if.if_xname); 1682 sc->sc_invalid = 1; 1683 return ENXIO; 1684 } 1685 if (sc->sc_cansleep) { 1686 sc->sc_sleep_cnt++; 1687 error = tsleep(sc, PWAIT, "awicmd", 1688 AWI_CMD_TIMEOUT*hz/1000); 1689 sc->sc_sleep_cnt--; 1690 } else { 1691 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1692 awi_cmd_done(sc); 1693 break; 1694 } 1695 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1696 error = EWOULDBLOCK; 1697 else 1698 DELAY(10); 1699 } 1700 if (error) 1701 break; 1702 } 1703 if (error) { 1704 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1705 sc->sc_cmd_inprog, error)); 1706 } 1707 return error; 1708 } 1709 1710 static void 1711 awi_cmd_done(struct awi_softc *sc) 1712 { 1713 u_int8_t cmd, status; 1714 1715 status = awi_read_1(sc, AWI_CMD_STATUS); 1716 if (status == AWI_STAT_IDLE) 1717 return; /* stray interrupt */ 1718 1719 cmd = sc->sc_cmd_inprog; 1720 sc->sc_cmd_inprog = 0; 1721 wakeup(sc); 1722 awi_write_1(sc, AWI_CMD, 0); 1723 1724 if (status != AWI_STAT_OK) { 1725 printf("%s: command %d failed %x\n", 1726 sc->sc_ic.ic_if.if_xname, cmd, status); 1727 sc->sc_substate = AWI_ST_NONE; 1728 return; 1729 } 1730 if (sc->sc_substate != AWI_ST_NONE) 1731 (void)ieee80211_new_state(&sc->sc_ic, sc->sc_nstate, -1); 1732 } 1733 1734 static int 1735 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1736 { 1737 u_int32_t txd, ntxd, frame; 1738 1739 txd = sc->sc_txnext; 1740 frame = txd + AWI_TXD_SIZE; 1741 if (frame + len > sc->sc_txend) 1742 frame = sc->sc_txbase; 1743 ntxd = frame + len; 1744 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1745 ntxd = sc->sc_txbase; 1746 *framep = frame; 1747 *ntxdp = ntxd; 1748 /* 1749 * Determine if there are any room in ring buffer. 1750 * --- send wait, === new data, +++ conflict (ENOBUFS) 1751 * base........................end 1752 * done----txd=====ntxd OK 1753 * --txd=====done++++ntxd-- full 1754 * --txd=====ntxd done-- OK 1755 * ==ntxd done----txd=== OK 1756 * ==done++++ntxd----txd=== full 1757 * ++ntxd txd=====done++ full 1758 */ 1759 if (txd < ntxd) { 1760 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1761 return ENOBUFS; 1762 } else { 1763 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1764 return ENOBUFS; 1765 } 1766 return 0; 1767 } 1768 1769 static int 1770 awi_lock(struct awi_softc *sc) 1771 { 1772 int error = 0; 1773 1774 #ifdef __NetBSD__ 1775 if (curlwp == NULL) 1776 #else 1777 if (curproc == NULL) 1778 #endif 1779 { 1780 /* 1781 * XXX 1782 * Though driver ioctl should be called with context, 1783 * KAME ipv6 stack calls ioctl in interrupt for now. 1784 * We simply abort the request if there are other 1785 * ioctl requests in progress. 1786 */ 1787 if (sc->sc_busy) { 1788 if (sc->sc_invalid) 1789 return ENXIO; 1790 return EWOULDBLOCK; 1791 } 1792 sc->sc_busy = 1; 1793 sc->sc_cansleep = 0; 1794 return 0; 1795 } 1796 while (sc->sc_busy) { 1797 if (sc->sc_invalid) 1798 return ENXIO; 1799 sc->sc_sleep_cnt++; 1800 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1801 sc->sc_sleep_cnt--; 1802 if (error) 1803 return error; 1804 } 1805 sc->sc_busy = 1; 1806 sc->sc_cansleep = 1; 1807 return 0; 1808 } 1809 1810 static void 1811 awi_unlock(struct awi_softc *sc) 1812 { 1813 sc->sc_busy = 0; 1814 sc->sc_cansleep = 0; 1815 if (sc->sc_sleep_cnt) 1816 wakeup(sc); 1817 } 1818 1819 static int 1820 awi_intr_lock(struct awi_softc *sc) 1821 { 1822 u_int8_t status; 1823 int i, retry; 1824 1825 status = 1; 1826 for (retry = 0; retry < 10; retry++) { 1827 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1828 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1829 break; 1830 DELAY(5); 1831 } 1832 if (status != 0) 1833 break; 1834 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1835 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1836 break; 1837 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1838 } 1839 if (status != 0) { 1840 printf("%s: failed to lock interrupt\n", 1841 sc->sc_ic.ic_if.if_xname); 1842 return ENXIO; 1843 } 1844 return 0; 1845 } 1846 1847 static void 1848 awi_intr_unlock(struct awi_softc *sc) 1849 { 1850 1851 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1852 } 1853 1854 static int 1855 awi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1856 { 1857 struct awi_softc *sc = ic->ic_softc; 1858 struct ieee80211_node *ni; 1859 struct ifnet *ifp = &ic->ic_if; 1860 int error; 1861 u_int8_t newmode; 1862 enum ieee80211_state ostate; 1863 #ifdef AWI_DEBUG 1864 static const char *stname[] = 1865 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1866 static const char *substname[] = 1867 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1868 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1869 #endif /* AWI_DEBUG */ 1870 1871 ostate = ic->ic_state; 1872 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1873 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1874 1875 /* set LED */ 1876 switch (nstate) { 1877 case IEEE80211_S_INIT: 1878 awi_drvstate(sc, AWI_DRV_RESET); 1879 break; 1880 case IEEE80211_S_SCAN: 1881 if (ic->ic_opmode == IEEE80211_M_IBSS || 1882 ic->ic_opmode == IEEE80211_M_AHDEMO) 1883 awi_drvstate(sc, AWI_DRV_ADHSC); 1884 else 1885 awi_drvstate(sc, AWI_DRV_INFSY); 1886 break; 1887 case IEEE80211_S_AUTH: 1888 awi_drvstate(sc, AWI_DRV_INFSY); 1889 break; 1890 case IEEE80211_S_ASSOC: 1891 awi_drvstate(sc, AWI_DRV_INFAUTH); 1892 break; 1893 case IEEE80211_S_RUN: 1894 if (ic->ic_opmode == IEEE80211_M_IBSS || 1895 ic->ic_opmode == IEEE80211_M_AHDEMO) 1896 awi_drvstate(sc, AWI_DRV_ADHSY); 1897 else 1898 awi_drvstate(sc, AWI_DRV_INFASSOC); 1899 break; 1900 } 1901 1902 if (nstate == IEEE80211_S_INIT) { 1903 sc->sc_substate = AWI_ST_NONE; 1904 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1905 return (*sc->sc_newstate)(ic, nstate, arg); 1906 } 1907 1908 /* state transition */ 1909 if (nstate == IEEE80211_S_SCAN) { 1910 /* SCAN substate */ 1911 if (sc->sc_substate == AWI_ST_NONE) { 1912 sc->sc_nstate = nstate; /* next state in transition */ 1913 sc->sc_substate = AWI_ST_SCAN_INIT; 1914 } 1915 switch (sc->sc_substate) { 1916 case AWI_ST_SCAN_INIT: 1917 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1918 switch (ostate) { 1919 case IEEE80211_S_RUN: 1920 /* beacon miss */ 1921 if (ifp->if_flags & IFF_DEBUG) 1922 printf("%s: no recent beacons from %s;" 1923 " rescanning\n", 1924 ifp->if_xname, 1925 ether_sprintf(ic->ic_bss->ni_bssid)); 1926 /* FALLTHRU */ 1927 case IEEE80211_S_AUTH: 1928 case IEEE80211_S_ASSOC: 1929 case IEEE80211_S_INIT: 1930 ieee80211_begin_scan(ifp); 1931 /* FALLTHRU */ 1932 case IEEE80211_S_SCAN: 1933 /* scan next */ 1934 break; 1935 } 1936 if (ic->ic_flags & IEEE80211_F_ASCAN) 1937 newmode = AWI_SCAN_ACTIVE; 1938 else 1939 newmode = AWI_SCAN_PASSIVE; 1940 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1941 sc->sc_mib_mgt.aScan_Mode = newmode; 1942 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1943 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1944 break; 1945 } 1946 /* FALLTHRU */ 1947 case AWI_ST_SCAN_SETMIB: 1948 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1949 if (sc->sc_cmd_inprog) { 1950 if ((error = awi_cmd_wait(sc)) != 0) 1951 break; 1952 } 1953 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1954 ni = ic->ic_bss; 1955 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1956 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1957 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1958 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1959 awi_write_1(sc, AWI_CA_SCAN_SET, 1960 IEEE80211_FH_CHANSET( 1961 ieee80211_chan2ieee(ic, ni->ni_chan))); 1962 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1963 IEEE80211_FH_CHANPAT( 1964 ieee80211_chan2ieee(ic, ni->ni_chan))); 1965 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1966 } else { 1967 awi_write_1(sc, AWI_CA_SCAN_SET, 1968 ieee80211_chan2ieee(ic, ni->ni_chan)); 1969 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1970 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1971 } 1972 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1973 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 1974 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1975 != 0) 1976 break; 1977 /* FALLTHRU */ 1978 case AWI_ST_SCAN_SCCMD: 1979 ic->ic_state = nstate; 1980 sc->sc_substate = AWI_ST_NONE; 1981 error = EINPROGRESS; 1982 break; 1983 default: 1984 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1985 stname[nstate], substname[sc->sc_substate])); 1986 sc->sc_substate = AWI_ST_NONE; 1987 error = EIO; 1988 break; 1989 } 1990 goto out; 1991 } 1992 1993 if (ostate == IEEE80211_S_SCAN) { 1994 /* set SSID and channel */ 1995 /* substate */ 1996 if (sc->sc_substate == AWI_ST_NONE) { 1997 sc->sc_nstate = nstate; /* next state in transition */ 1998 sc->sc_substate = AWI_ST_SUB_INIT; 1999 } 2000 ni = ic->ic_bss; 2001 switch (sc->sc_substate) { 2002 case AWI_ST_SUB_INIT: 2003 sc->sc_substate = AWI_ST_SUB_SETSS; 2004 IEEE80211_ADDR_COPY(&sc->sc_mib_mgt.aCurrent_BSS_ID, 2005 ni->ni_bssid); 2006 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 2007 AWI_ESS_ID_SIZE); 2008 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 2009 IEEE80211_ELEMID_SSID; 2010 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = ni->ni_esslen; 2011 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 2012 ni->ni_essid, ni->ni_esslen); 2013 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 2014 ni->ni_intval); 2015 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 2016 AWI_NOWAIT)) != 0) 2017 break; 2018 /* FALLTHRU */ 2019 case AWI_ST_SUB_SETSS: 2020 sc->sc_substate = AWI_ST_SUB_SYNC; 2021 if (sc->sc_cmd_inprog) { 2022 if ((error = awi_cmd_wait(sc)) != 0) 2023 break; 2024 } 2025 sc->sc_cmd_inprog = AWI_CMD_SYNC; 2026 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 2027 awi_write_1(sc, AWI_CA_SYNC_SET, 2028 IEEE80211_FH_CHANSET( 2029 ieee80211_chan2ieee(ic, ni->ni_chan))); 2030 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 2031 IEEE80211_FH_CHANPAT( 2032 ieee80211_chan2ieee(ic, ni->ni_chan))); 2033 awi_write_1(sc, AWI_CA_SYNC_IDX, 2034 ni->ni_fhindex); 2035 awi_write_2(sc, AWI_CA_SYNC_DWELL, 2036 ni->ni_fhdwell); 2037 } else { 2038 awi_write_1(sc, AWI_CA_SYNC_SET, 2039 ieee80211_chan2ieee(ic, ni->ni_chan)); 2040 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 2041 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 2042 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 2043 } 2044 if (ic->ic_flags & IEEE80211_F_SIBSS) { 2045 memset(ni->ni_tstamp, 0, sizeof(ni->ni_tstamp)); 2046 ni->ni_rstamp = 0; 2047 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 2048 } else 2049 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 2050 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 2051 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 2052 ni->ni_tstamp, 8); 2053 awi_write_4(sc, AWI_CA_SYNC_REFTIME, ni->ni_rstamp); 2054 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2055 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 2056 != 0) 2057 break; 2058 /* FALLTHRU */ 2059 case AWI_ST_SUB_SYNC: 2060 sc->sc_substate = AWI_ST_NONE; 2061 if (ic->ic_flags & IEEE80211_F_SIBSS) { 2062 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 2063 AWI_MIB_MGT, AWI_WAIT)) != 0) 2064 break; 2065 IEEE80211_ADDR_COPY(ni->ni_bssid, 2066 &sc->sc_mib_mgt.aCurrent_BSS_ID); 2067 } else { 2068 if (nstate == IEEE80211_S_RUN) { 2069 sc->sc_rx_timer = 10; 2070 ifp->if_timer = 1; 2071 } 2072 } 2073 error = 0; 2074 break; 2075 default: 2076 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 2077 stname[nstate], substname[sc->sc_substate])); 2078 sc->sc_substate = AWI_ST_NONE; 2079 error = EIO; 2080 break; 2081 } 2082 goto out; 2083 } 2084 2085 sc->sc_substate = AWI_ST_NONE; 2086 2087 return (*sc->sc_newstate)(ic, nstate, arg); 2088 out: 2089 if (error != 0) { 2090 if (error == EINPROGRESS) 2091 error = 0; 2092 return error; 2093 } 2094 return (*sc->sc_newstate)(ic, nstate, arg); 2095 } 2096 2097 static void 2098 awi_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0, 2099 struct ieee80211_node *ni, 2100 int subtype, int rssi, u_int32_t rstamp) 2101 { 2102 struct awi_softc *sc = ic->ic_softc; 2103 2104 /* probe request is handled by hardware */ 2105 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2106 return; 2107 (*sc->sc_recv_mgmt)(ic, m0, ni, subtype, rssi, rstamp); 2108 } 2109 2110 static int 2111 awi_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, 2112 int type, int arg) 2113 { 2114 struct awi_softc *sc = ic->ic_softc; 2115 2116 /* probe request is handled by hardware */ 2117 if (type == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2118 return 0; 2119 return (*sc->sc_send_mgmt)(ic, ni, type, arg); 2120 } 2121 2122 static struct mbuf * 2123 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 2124 { 2125 struct ieee80211com *ic = &sc->sc_ic; 2126 struct ieee80211_node *ni = ic->ic_bss; 2127 struct ether_header *eh; 2128 struct ieee80211_frame *wh; 2129 2130 if (m->m_len < sizeof(struct ether_header)) { 2131 m = m_pullup(m, sizeof(struct ether_header)); 2132 if (m == NULL) 2133 return NULL; 2134 } 2135 eh = mtod(m, struct ether_header *); 2136 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 2137 if (m == NULL) 2138 return NULL; 2139 wh = mtod(m, struct ieee80211_frame *); 2140 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 2141 *(u_int16_t *)wh->i_dur = 0; 2142 *(u_int16_t *)wh->i_seq = 2143 htole16(ni->ni_txseq << IEEE80211_SEQ_SEQ_SHIFT); 2144 ni->ni_txseq++; 2145 if (ic->ic_opmode == IEEE80211_M_IBSS || 2146 ic->ic_opmode == IEEE80211_M_AHDEMO) { 2147 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2148 if (sc->sc_adhoc_ap) 2149 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_macaddr); 2150 else 2151 IEEE80211_ADDR_COPY(wh->i_addr1, eh->ether_dhost); 2152 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2153 IEEE80211_ADDR_COPY(wh->i_addr3, ni->ni_bssid); 2154 } else { 2155 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 2156 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_bssid); 2157 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2158 IEEE80211_ADDR_COPY(wh->i_addr3, eh->ether_dhost); 2159 } 2160 return m; 2161 } 2162 2163 static struct mbuf * 2164 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 2165 { 2166 struct ieee80211com *ic = &sc->sc_ic; 2167 struct ether_header eh; 2168 struct ieee80211_frame wh; 2169 struct llc *llc; 2170 2171 if (m->m_len < sizeof(wh) + sizeof(eh)) { 2172 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 2173 if (m == NULL) 2174 return NULL; 2175 } 2176 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 2177 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 2178 return m; 2179 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 2180 m_adj(m, sizeof(eh) - sizeof(*llc)); 2181 if (ic->ic_opmode == IEEE80211_M_IBSS || 2182 ic->ic_opmode == IEEE80211_M_AHDEMO) 2183 IEEE80211_ADDR_COPY(wh.i_addr2, eh.ether_shost); 2184 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 2185 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 2186 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 2187 llc->llc_control = LLC_UI; 2188 llc->llc_snap.org_code[0] = 0; 2189 llc->llc_snap.org_code[1] = 0; 2190 llc->llc_snap.org_code[2] = 0; 2191 llc->llc_snap.ether_type = eh.ether_type; 2192 return m; 2193 }
Cache object: 9c123184e6cc2a875e4d88bb63840ac7
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