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sys/dev/ic/awi.c
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1 /* $NetBSD: awi.c,v 1.73 2006/10/04 15:36:23 christos 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 1.73 2006/10/04 15:36:23 christos 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_netbsd.h> 133 #include <net80211/ieee80211_var.h> 134 135 #if NBPFILTER > 0 136 #include <net/bpf.h> 137 #endif 138 139 #include <machine/cpu.h> 140 #include <machine/bus.h> 141 142 #ifdef __NetBSD__ 143 #include <dev/ic/am79c930reg.h> 144 #include <dev/ic/am79c930var.h> 145 #include <dev/ic/awireg.h> 146 #include <dev/ic/awivar.h> 147 #endif 148 #ifdef __FreeBSD__ 149 #include <dev/awi/am79c930reg.h> 150 #include <dev/awi/am79c930var.h> 151 #include <dev/awi/awireg.h> 152 #include <dev/awi/awivar.h> 153 #endif 154 155 #ifdef __FreeBSD__ 156 static void awi_init0(void *); 157 #endif 158 static int awi_init(struct ifnet *); 159 static void awi_stop(struct ifnet *, int); 160 static void awi_start(struct ifnet *); 161 static void awi_watchdog(struct ifnet *); 162 static int awi_ioctl(struct ifnet *, u_long, caddr_t); 163 static int awi_media_change(struct ifnet *); 164 static void awi_media_status(struct ifnet *, struct ifmediareq *); 165 static int awi_mode_init(struct awi_softc *); 166 static void awi_rx_int(struct awi_softc *); 167 static void awi_tx_int(struct awi_softc *); 168 static struct mbuf *awi_devget(struct awi_softc *, u_int32_t, u_int16_t); 169 static int awi_hw_init(struct awi_softc *); 170 static int awi_init_mibs(struct awi_softc *); 171 static int awi_mib(struct awi_softc *, u_int8_t, u_int8_t, int); 172 static int awi_cmd(struct awi_softc *, u_int8_t, int); 173 static int awi_cmd_wait(struct awi_softc *); 174 static void awi_cmd_done(struct awi_softc *); 175 static int awi_next_txd(struct awi_softc *, int, u_int32_t *, u_int32_t *); 176 static int awi_lock(struct awi_softc *); 177 static void awi_unlock(struct awi_softc *); 178 static int awi_intr_lock(struct awi_softc *); 179 static void awi_intr_unlock(struct awi_softc *); 180 static int awi_newstate(struct ieee80211com *, enum ieee80211_state, int); 181 static void awi_recv_mgmt(struct ieee80211com *, struct mbuf *, 182 struct ieee80211_node *, int, int, u_int32_t); 183 static int awi_send_mgmt(struct ieee80211com *, struct ieee80211_node *, int, 184 int); 185 static struct mbuf *awi_ether_encap(struct awi_softc *, struct mbuf *); 186 static struct mbuf *awi_ether_modcap(struct awi_softc *, struct mbuf *); 187 188 /* unaligned little endian access */ 189 #define LE_READ_2(p) \ 190 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)) 191 #define LE_READ_4(p) \ 192 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \ 193 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)) 194 #define LE_WRITE_2(p, v) \ 195 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 196 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff))) 197 #define LE_WRITE_4(p, v) \ 198 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 199 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff)), \ 200 (((u_int8_t *)(p))[2] = (((u_int32_t)(v) >> 16) & 0xff)), \ 201 (((u_int8_t *)(p))[3] = (((u_int32_t)(v) >> 24) & 0xff))) 202 203 struct awi_chanset awi_chanset[] = { 204 /* PHY type domain min max def */ 205 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_JP, 6, 17, 6 }, 206 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_ES, 0, 26, 1 }, 207 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_FR, 0, 32, 1 }, 208 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_US, 0, 77, 1 }, 209 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_CA, 0, 77, 1 }, 210 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_EU, 0, 77, 1 }, 211 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_JP, 14, 14, 14 }, 212 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_ES, 10, 11, 10 }, 213 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_FR, 10, 13, 10 }, 214 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_US, 1, 11, 3 }, 215 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_CA, 1, 11, 3 }, 216 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_EU, 1, 13, 3 }, 217 { 0, 0, 0, 0, 0 } 218 }; 219 220 #ifdef __FreeBSD__ 221 devclass_t awi_devclass; 222 223 #if __FreeBSD_version < 500043 224 static char *ether_sprintf(u_int8_t *); 225 226 static char * 227 ether_sprintf(u_int8_t *enaddr) 228 { 229 static char strbuf[18]; 230 231 sprintf(strbuf, "%6D", enaddr, ":"); 232 return strbuf; 233 } 234 #endif 235 236 #define IFQ_PURGE(ifq) IF_DRAIN(ifq) 237 #define IF_POLL(ifq, m) ((m) = (ifq)->ifq_head) 238 #define IFQ_POLL(ifq, m) IF_POLL((ifq), (m)) 239 #define IFQ_DEQUEUE(ifq, m) IF_DEQUEUE((ifq), (m)) 240 241 #endif 242 243 #ifdef AWI_DEBUG 244 int awi_debug = 0; 245 246 #define DPRINTF(X) if (awi_debug) printf X 247 #define DPRINTF2(X) if (awi_debug > 1) printf X 248 #else 249 #define DPRINTF(X) 250 #define DPRINTF2(X) 251 #endif 252 253 int 254 awi_attach(struct awi_softc *sc) 255 { 256 struct ieee80211com *ic = &sc->sc_ic; 257 struct ifnet *ifp = &sc->sc_if; 258 int s, i, error, nrate; 259 int mword; 260 enum ieee80211_phymode mode; 261 262 s = splnet(); 263 sc->sc_busy = 1; 264 sc->sc_attached = 0; 265 sc->sc_substate = AWI_ST_NONE; 266 if ((error = awi_hw_init(sc)) != 0) { 267 sc->sc_invalid = 1; 268 splx(s); 269 return error; 270 } 271 error = awi_init_mibs(sc); 272 if (error != 0) { 273 sc->sc_invalid = 1; 274 splx(s); 275 return error; 276 } 277 ifp->if_softc = sc; 278 ifp->if_flags = 279 #ifdef IFF_NOTRAILERS 280 IFF_NOTRAILERS | 281 #endif 282 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; 283 ifp->if_ioctl = awi_ioctl; 284 ifp->if_start = awi_start; 285 ifp->if_watchdog = awi_watchdog; 286 #ifdef __NetBSD__ 287 ifp->if_init = awi_init; 288 ifp->if_stop = awi_stop; 289 IFQ_SET_READY(&ifp->if_snd); 290 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 291 #endif 292 #ifdef __FreeBSD__ 293 ifp->if_init = awi_init0; 294 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 295 if_initname(ifp, device_get_name(sc->sc_dev), 296 device_get_unit(sc->sc_dev)); 297 #endif 298 299 ic->ic_ifp = ifp; 300 ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP; 301 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 302 ic->ic_phytype = IEEE80211_T_FH; 303 mode = IEEE80211_MODE_FH; 304 } else { 305 ic->ic_phytype = IEEE80211_T_DS; 306 ic->ic_caps |= IEEE80211_C_AHDEMO; 307 mode = IEEE80211_MODE_11B; 308 } 309 ic->ic_opmode = IEEE80211_M_STA; 310 nrate = sc->sc_mib_phy.aSuprt_Data_Rates[1]; 311 memcpy(ic->ic_sup_rates[mode].rs_rates, 312 sc->sc_mib_phy.aSuprt_Data_Rates + 2, nrate); 313 ic->ic_sup_rates[mode].rs_nrates = nrate; 314 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address); 315 316 printf("%s: IEEE802.11 %s (firmware %s)\n", ifp->if_xname, 317 (ic->ic_phytype == IEEE80211_T_FH) ? "FH" : "DS", sc->sc_banner); 318 printf("%s: 802.11 address: %s\n", ifp->if_xname, 319 ether_sprintf(ic->ic_myaddr)); 320 321 #ifdef __NetBSD__ 322 if_attach(ifp); 323 #endif 324 ieee80211_ifattach(ic); 325 326 sc->sc_newstate = ic->ic_newstate; 327 ic->ic_newstate = awi_newstate; 328 329 sc->sc_recv_mgmt = ic->ic_recv_mgmt; 330 ic->ic_recv_mgmt = awi_recv_mgmt; 331 332 sc->sc_send_mgmt = ic->ic_send_mgmt; 333 ic->ic_send_mgmt = awi_send_mgmt; 334 335 ieee80211_media_init(ic, awi_media_change, awi_media_status); 336 337 /* Melco compatibility mode. */ 338 #define ADD(s, o) ifmedia_add(&ic->ic_media, \ 339 IFM_MAKEWORD(IFM_IEEE80211, (s), (o), 0), 0, NULL) 340 ADD(IFM_AUTO, IFM_FLAG0); 341 342 for (i = 0; i < nrate; i++) { 343 mword = ieee80211_rate2media(ic, 344 ic->ic_sup_rates[mode].rs_rates[i], mode); 345 if (mword == 0) 346 continue; 347 ADD(mword, IFM_FLAG0); 348 } 349 #undef ADD 350 351 #ifdef __NetBSD__ 352 if ((sc->sc_sdhook = shutdownhook_establish(awi_shutdown, sc)) == NULL) 353 printf("%s: WARNING: unable to establish shutdown hook\n", 354 ifp->if_xname); 355 if ((sc->sc_powerhook = 356 powerhook_establish(ifp->if_xname, 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 ieee80211com *ic = &sc->sc_ic; 373 struct ifnet *ifp = &sc->sc_if; 374 int s; 375 376 if (!sc->sc_attached) 377 return 0; 378 379 s = splnet(); 380 sc->sc_invalid = 1; 381 awi_stop(ifp, 1); 382 383 while (sc->sc_sleep_cnt > 0) { 384 wakeup(sc); 385 (void)tsleep(sc, PWAIT, "awidet", 1); 386 } 387 sc->sc_attached = 0; 388 ieee80211_ifdetach(ic); 389 #ifdef __NetBSD__ 390 if_detach(ifp); 391 shutdownhook_disestablish(sc->sc_sdhook); 392 powerhook_disestablish(sc->sc_powerhook); 393 #endif 394 splx(s); 395 return 0; 396 } 397 398 #ifdef __NetBSD__ 399 int 400 awi_activate(struct device *self, enum devact act) 401 { 402 struct awi_softc *sc = (struct awi_softc *)self; 403 struct ifnet *ifp = &sc->sc_if; 404 int s, error = 0; 405 406 s = splnet(); 407 switch (act) { 408 case DVACT_ACTIVATE: 409 error = EOPNOTSUPP; 410 break; 411 case DVACT_DEACTIVATE: 412 sc->sc_invalid = 1; 413 if_deactivate(ifp); 414 break; 415 } 416 splx(s); 417 return error; 418 } 419 420 void 421 awi_power(int why, void *arg) 422 { 423 struct awi_softc *sc = arg; 424 struct ifnet *ifp = &sc->sc_if; 425 int s; 426 int ocansleep; 427 428 DPRINTF(("awi_power: %d\n", why)); 429 s = splnet(); 430 ocansleep = sc->sc_cansleep; 431 sc->sc_cansleep = 0; 432 switch (why) { 433 case PWR_SUSPEND: 434 case PWR_STANDBY: 435 awi_stop(ifp, 1); 436 break; 437 case PWR_RESUME: 438 if (ifp->if_flags & IFF_UP) { 439 awi_init(ifp); 440 (void)awi_intr(sc); /* make sure */ 441 } 442 break; 443 case PWR_SOFTSUSPEND: 444 case PWR_SOFTSTANDBY: 445 case PWR_SOFTRESUME: 446 break; 447 } 448 sc->sc_cansleep = ocansleep; 449 splx(s); 450 } 451 #endif /* __NetBSD__ */ 452 453 void 454 awi_shutdown(void *arg) 455 { 456 struct awi_softc *sc = arg; 457 struct ifnet *ifp = &sc->sc_if; 458 459 if (sc->sc_attached) 460 awi_stop(ifp, 1); 461 } 462 463 int 464 awi_intr(void *arg) 465 { 466 struct awi_softc *sc = arg; 467 u_int16_t status; 468 int handled = 0, ocansleep; 469 #ifdef AWI_DEBUG 470 static const char *intname[] = { 471 "CMD", "RX", "TX", "SCAN_CMPLT", 472 "CFP_START", "DTIM", "CFP_ENDING", "GROGGY", 473 "TXDATA", "TXBCAST", "TXPS", "TXCF", 474 "TXMGT", "#13", "RXDATA", "RXMGT" 475 }; 476 #endif 477 478 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) { 479 DPRINTF(("awi_intr: stray interrupt: " 480 "enabled %d enab_intr %d invalid %d\n", 481 sc->sc_enabled, sc->sc_enab_intr, sc->sc_invalid)); 482 return 0; 483 } 484 485 am79c930_gcr_setbits(&sc->sc_chip, 486 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 487 awi_write_1(sc, AWI_DIS_PWRDN, 1); 488 ocansleep = sc->sc_cansleep; 489 sc->sc_cansleep = 0; 490 491 for (;;) { 492 if (awi_intr_lock(sc) != 0) 493 break; 494 status = awi_read_1(sc, AWI_INTSTAT); 495 awi_write_1(sc, AWI_INTSTAT, 0); 496 awi_write_1(sc, AWI_INTSTAT, 0); 497 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 498 awi_write_1(sc, AWI_INTSTAT2, 0); 499 DELAY(10); 500 awi_intr_unlock(sc); 501 if (!sc->sc_cmd_inprog) 502 status &= ~AWI_INT_CMD; /* make sure */ 503 if (status == 0) 504 break; 505 #ifdef AWI_DEBUG 506 if (awi_debug > 1) { 507 int i; 508 509 printf("awi_intr: status 0x%04x", status); 510 for (i = 0; i < sizeof(intname)/sizeof(intname[0]); 511 i++) { 512 if (status & (1 << i)) 513 printf(" %s", intname[i]); 514 } 515 printf("\n"); 516 } 517 #endif 518 handled = 1; 519 if (status & AWI_INT_RX) 520 awi_rx_int(sc); 521 if (status & AWI_INT_TX) 522 awi_tx_int(sc); 523 if (status & AWI_INT_CMD) 524 awi_cmd_done(sc); 525 if (status & AWI_INT_SCAN_CMPLT) { 526 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN && 527 sc->sc_substate == AWI_ST_NONE) 528 ieee80211_next_scan(&sc->sc_ic); 529 } 530 } 531 sc->sc_cansleep = ocansleep; 532 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 533 awi_write_1(sc, AWI_DIS_PWRDN, 0); 534 return handled; 535 } 536 537 #ifdef __FreeBSD__ 538 static void 539 awi_init0(void *arg) 540 { 541 struct awi_softc *sc = arg; 542 543 (void)awi_init(&sc->sc_if); 544 } 545 #endif 546 547 static int 548 awi_init(struct ifnet *ifp) 549 { 550 struct awi_softc *sc = ifp->if_softc; 551 struct ieee80211com *ic = &sc->sc_ic; 552 struct ieee80211_node *ni = ic->ic_bss; 553 struct ieee80211_rateset *rs; 554 int error, rate, i; 555 556 DPRINTF(("awi_init: enabled=%d\n", sc->sc_enabled)); 557 if (sc->sc_enabled) { 558 awi_stop(ifp, 0); 559 } else { 560 if (sc->sc_enable) 561 (*sc->sc_enable)(sc); 562 sc->sc_enabled = 1; 563 if ((error = awi_hw_init(sc)) != 0) { 564 if (sc->sc_disable) 565 (*sc->sc_disable)(sc); 566 sc->sc_enabled = 0; 567 return error; 568 } 569 } 570 ic->ic_state = IEEE80211_S_INIT; 571 572 ic->ic_flags &= ~IEEE80211_F_IBSSON; 573 switch (ic->ic_opmode) { 574 case IEEE80211_M_STA: 575 sc->sc_mib_local.Network_Mode = 1; 576 sc->sc_mib_local.Acting_as_AP = 0; 577 break; 578 case IEEE80211_M_IBSS: 579 ic->ic_flags |= IEEE80211_F_IBSSON; 580 /* FALLTHRU */ 581 case IEEE80211_M_AHDEMO: 582 sc->sc_mib_local.Network_Mode = 0; 583 sc->sc_mib_local.Acting_as_AP = 0; 584 break; 585 case IEEE80211_M_HOSTAP: 586 sc->sc_mib_local.Network_Mode = 1; 587 sc->sc_mib_local.Acting_as_AP = 1; 588 break; 589 case IEEE80211_M_MONITOR: 590 return ENODEV; 591 } 592 #if 0 593 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 594 #endif 595 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 596 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 597 sc->sc_mib_mac.aDesired_ESS_ID[1] = ic->ic_des_esslen; 598 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], ic->ic_des_essid, 599 ic->ic_des_esslen); 600 601 /* configure basic rate */ 602 if (ic->ic_phytype == IEEE80211_T_FH) 603 rs = &ic->ic_sup_rates[IEEE80211_MODE_FH]; 604 else 605 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 606 if (ic->ic_fixed_rate != -1) { 607 rate = rs->rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 608 } else { 609 rate = 0; 610 for (i = 0; i < rs->rs_nrates; i++) { 611 if ((rs->rs_rates[i] & IEEE80211_RATE_BASIC) && 612 rate < (rs->rs_rates[i] & IEEE80211_RATE_VAL)) 613 rate = rs->rs_rates[i] & IEEE80211_RATE_VAL; 614 } 615 } 616 rate *= 5; 617 LE_WRITE_2(&sc->sc_mib_mac.aStation_Basic_Rate, rate); 618 619 if ((error = awi_mode_init(sc)) != 0) { 620 DPRINTF(("awi_init: awi_mode_init failed %d\n", error)); 621 awi_stop(ifp, 1); 622 return error; 623 } 624 625 /* start transmitter */ 626 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 627 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 628 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 629 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 630 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 631 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 632 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 633 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 634 awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); 635 awi_write_4(sc, AWI_CA_TX_MGT, 0); 636 awi_write_4(sc, AWI_CA_TX_BCAST, 0); 637 awi_write_4(sc, AWI_CA_TX_PS, 0); 638 awi_write_4(sc, AWI_CA_TX_CF, 0); 639 if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { 640 DPRINTF(("awi_init: failed to start transmitter: %d\n", error)); 641 awi_stop(ifp, 1); 642 return error; 643 } 644 645 /* start receiver */ 646 if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { 647 DPRINTF(("awi_init: failed to start receiver: %d\n", error)); 648 awi_stop(ifp, 1); 649 return error; 650 } 651 sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); 652 sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); 653 654 ifp->if_flags |= IFF_RUNNING; 655 ifp->if_flags &= ~IFF_OACTIVE; 656 ic->ic_state = IEEE80211_S_INIT; 657 658 if (ic->ic_opmode == IEEE80211_M_AHDEMO || 659 ic->ic_opmode == IEEE80211_M_HOSTAP) { 660 ni->ni_chan = ic->ic_ibss_chan; 661 ni->ni_intval = ic->ic_lintval; 662 ni->ni_rssi = 0; 663 ni->ni_rstamp = 0; 664 memset(&ni->ni_tstamp, 0, sizeof(ni->ni_tstamp)); 665 ni->ni_rates = 666 ic->ic_sup_rates[ieee80211_chan2mode(ic, ni->ni_chan)]; 667 IEEE80211_ADDR_COPY(ni->ni_macaddr, ic->ic_myaddr); 668 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 669 IEEE80211_ADDR_COPY(ni->ni_bssid, ic->ic_myaddr); 670 ni->ni_esslen = ic->ic_des_esslen; 671 memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); 672 ni->ni_capinfo = IEEE80211_CAPINFO_ESS; 673 if (ic->ic_phytype == IEEE80211_T_FH) { 674 ni->ni_fhdwell = 200; /* XXX */ 675 ni->ni_fhindex = 1; 676 } 677 } else { 678 ni->ni_capinfo = IEEE80211_CAPINFO_IBSS; 679 memset(ni->ni_bssid, 0, IEEE80211_ADDR_LEN); 680 ni->ni_esslen = 0; 681 } 682 if (ic->ic_flags & IEEE80211_F_PRIVACY) 683 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 684 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 685 ic->ic_flags |= IEEE80211_F_SIBSS; 686 ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ 687 sc->sc_substate = AWI_ST_NONE; 688 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 689 } else { 690 /* XXX check sc->sc_cur_chan */ 691 ni->ni_chan = &ic->ic_channels[sc->sc_cur_chan]; 692 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 693 } 694 return 0; 695 } 696 697 static void 698 awi_stop(struct ifnet *ifp, int disable) 699 { 700 struct awi_softc *sc = ifp->if_softc; 701 702 if (!sc->sc_enabled) 703 return; 704 705 DPRINTF(("awi_stop(%d)\n", disable)); 706 707 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); 708 709 if (!sc->sc_invalid) { 710 if (sc->sc_cmd_inprog) 711 (void)awi_cmd_wait(sc); 712 (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); 713 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 714 awi_write_1(sc, AWI_CA_FTX_DATA, 1); 715 awi_write_1(sc, AWI_CA_FTX_MGT, 0); 716 awi_write_1(sc, AWI_CA_FTX_BCAST, 0); 717 awi_write_1(sc, AWI_CA_FTX_PS, 0); 718 awi_write_1(sc, AWI_CA_FTX_CF, 0); 719 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); 720 } 721 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 722 ifp->if_timer = 0; 723 sc->sc_tx_timer = sc->sc_rx_timer = 0; 724 if (sc->sc_rxpend != NULL) { 725 m_freem(sc->sc_rxpend); 726 sc->sc_rxpend = NULL; 727 } 728 IFQ_PURGE(&ifp->if_snd); 729 730 if (disable) { 731 if (!sc->sc_invalid) 732 am79c930_gcr_setbits(&sc->sc_chip, 733 AM79C930_GCR_CORESET); 734 if (sc->sc_disable) 735 (*sc->sc_disable)(sc); 736 sc->sc_enabled = 0; 737 } 738 } 739 740 static void 741 awi_start(struct ifnet *ifp) 742 { 743 struct awi_softc *sc = ifp->if_softc; 744 struct ieee80211com *ic = &sc->sc_ic; 745 struct ether_header *eh; 746 struct ieee80211_node *ni; 747 struct ieee80211_frame *wh; 748 struct mbuf *m, *m0; 749 int len, dowep; 750 u_int32_t txd, frame, ntxd; 751 u_int8_t rate; 752 753 if (!sc->sc_enabled || sc->sc_invalid) 754 return; 755 756 for (;;) { 757 txd = sc->sc_txnext; 758 IF_POLL(&ic->ic_mgtq, m0); 759 dowep = 0; 760 if (m0 != NULL) { 761 len = m0->m_pkthdr.len; 762 if (awi_next_txd(sc, len, &frame, &ntxd)) { 763 ifp->if_flags |= IFF_OACTIVE; 764 break; 765 } 766 IF_DEQUEUE(&ic->ic_mgtq, m0); 767 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; 768 } else { 769 if (ic->ic_state != IEEE80211_S_RUN) 770 break; 771 IFQ_POLL(&ifp->if_snd, m0); 772 if (m0 == NULL) 773 break; 774 /* 775 * Need to calculate the real length to determine 776 * if the transmit buffer has a room for the packet. 777 */ 778 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 779 if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) 780 len += sizeof(struct llc) - 781 sizeof(struct ether_header); 782 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 783 dowep = 1; 784 len += IEEE80211_WEP_IVLEN + 785 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 786 } 787 if (awi_next_txd(sc, len, &frame, &ntxd)) { 788 ifp->if_flags |= IFF_OACTIVE; 789 break; 790 } 791 IFQ_DEQUEUE(&ifp->if_snd, m0); 792 ifp->if_opackets++; 793 #if NBPFILTER > 0 794 if (ifp->if_bpf) 795 bpf_mtap(ifp->if_bpf, m0); 796 #endif 797 eh = mtod(m0, struct ether_header *); 798 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 799 if (ni == NULL) { 800 ifp->if_oerrors++; 801 continue; 802 } 803 if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) 804 m0 = awi_ether_encap(sc, m0); 805 else { 806 m0 = ieee80211_encap(ic, m0, ni); 807 } 808 if (m0 == NULL) { 809 ieee80211_free_node(ni); 810 ifp->if_oerrors++; 811 continue; 812 } 813 wh = mtod(m0, struct ieee80211_frame *); 814 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) && 815 (ic->ic_opmode == IEEE80211_M_HOSTAP || 816 ic->ic_opmode == IEEE80211_M_IBSS) && 817 sc->sc_adhoc_ap == 0 && 818 (ifp->if_flags & IFF_LINK0) == 0 && 819 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 820 IEEE80211_FC0_TYPE_DATA) { 821 m_freem(m0); 822 ieee80211_free_node(ni); 823 ifp->if_oerrors++; 824 continue; 825 } 826 } 827 #if NBPFILTER > 0 828 if (ic->ic_rawbpf) 829 bpf_mtap(ic->ic_rawbpf, m0); 830 #endif 831 if (dowep) { 832 if ((ieee80211_crypto_encap(ic, ni, m0)) == NULL) { 833 m_freem(m0); 834 ieee80211_free_node(ni); 835 ifp->if_oerrors++; 836 continue; 837 } 838 } 839 ieee80211_free_node(ni); 840 #ifdef DIAGNOSTIC 841 if (m0->m_pkthdr.len != len) { 842 printf("%s: length %d should be %d\n", 843 sc->sc_if.if_xname, m0->m_pkthdr.len, len); 844 m_freem(m0); 845 ifp->if_oerrors++; 846 continue; 847 } 848 #endif 849 850 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 851 ieee80211_dump_pkt(m0->m_data, m0->m_len, 852 ic->ic_bss->ni_rates. 853 rs_rates[ic->ic_bss->ni_txrate] & 854 IEEE80211_RATE_VAL, -1); 855 856 for (m = m0, len = 0; m != NULL; m = m->m_next) { 857 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 858 m->m_len); 859 len += m->m_len; 860 } 861 m_freem(m0); 862 rate = (ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 863 IEEE80211_RATE_VAL) * 5; 864 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 865 awi_write_4(sc, txd + AWI_TXD_START, frame); 866 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 867 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 868 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 869 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 870 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 871 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 872 sc->sc_txnext = ntxd; 873 874 sc->sc_tx_timer = 5; 875 ifp->if_timer = 1; 876 } 877 } 878 879 static void 880 awi_watchdog(struct ifnet *ifp) 881 { 882 struct awi_softc *sc = ifp->if_softc; 883 u_int32_t prevdone; 884 int ocansleep; 885 886 ifp->if_timer = 0; 887 if (!sc->sc_enabled || sc->sc_invalid) 888 return; 889 890 ocansleep = sc->sc_cansleep; 891 sc->sc_cansleep = 0; 892 if (sc->sc_tx_timer) { 893 if (--sc->sc_tx_timer == 0) { 894 printf("%s: device timeout\n", ifp->if_xname); 895 prevdone = sc->sc_txdone; 896 awi_tx_int(sc); 897 if (sc->sc_txdone == prevdone) { 898 ifp->if_oerrors++; 899 awi_init(ifp); 900 goto out; 901 } 902 } 903 ifp->if_timer = 1; 904 } 905 if (sc->sc_rx_timer) { 906 if (--sc->sc_rx_timer == 0) { 907 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 908 ieee80211_new_state(&sc->sc_ic, 909 IEEE80211_S_SCAN, -1); 910 goto out; 911 } 912 } else 913 ifp->if_timer = 1; 914 } 915 /* TODO: rate control */ 916 ieee80211_watchdog(&sc->sc_ic); 917 out: 918 sc->sc_cansleep = ocansleep; 919 } 920 921 static int 922 awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 923 { 924 struct awi_softc *sc = ifp->if_softc; 925 struct ifreq *ifr = (struct ifreq *)data; 926 int s, error; 927 928 s = splnet(); 929 /* serialize ioctl, since we may sleep */ 930 if ((error = awi_lock(sc)) != 0) 931 goto cantlock; 932 933 switch (cmd) { 934 case SIOCSIFFLAGS: 935 if (ifp->if_flags & IFF_UP) { 936 if (sc->sc_enabled) { 937 /* 938 * To avoid rescanning another access point, 939 * do not call awi_init() here. Instead, 940 * only reflect promisc mode settings. 941 */ 942 error = awi_mode_init(sc); 943 } else 944 error = awi_init(ifp); 945 } else if (sc->sc_enabled) 946 awi_stop(ifp, 1); 947 break; 948 case SIOCSIFMEDIA: 949 case SIOCGIFMEDIA: 950 error = ifmedia_ioctl(ifp, ifr, &sc->sc_ic.ic_media, cmd); 951 break; 952 case SIOCADDMULTI: 953 case SIOCDELMULTI: 954 #ifdef __FreeBSD__ 955 error = ENETRESET; /* XXX */ 956 #else 957 error = (cmd == SIOCADDMULTI) ? 958 ether_addmulti(ifr, &sc->sc_ec) : 959 ether_delmulti(ifr, &sc->sc_ec); 960 #endif 961 if (error == ENETRESET) { 962 /* do not rescan */ 963 if (ifp->if_flags & IFF_RUNNING) 964 error = awi_mode_init(sc); 965 else 966 error = 0; 967 } 968 break; 969 default: 970 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 971 if (error == ENETRESET) { 972 if (sc->sc_enabled) 973 error = awi_init(ifp); 974 else 975 error = 0; 976 } 977 break; 978 } 979 awi_unlock(sc); 980 cantlock: 981 splx(s); 982 return error; 983 } 984 985 /* 986 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 987 * 988 * TBD factor with ieee80211_media_change 989 */ 990 static int 991 awi_media_change(struct ifnet *ifp) 992 { 993 struct awi_softc *sc = ifp->if_softc; 994 struct ieee80211com *ic = &sc->sc_ic; 995 struct ifmedia_entry *ime; 996 enum ieee80211_opmode newmode; 997 int i, rate, newadhoc_ap, error = 0; 998 999 ime = ic->ic_media.ifm_cur; 1000 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 1001 i = -1; 1002 } else { 1003 struct ieee80211_rateset *rs = 1004 &ic->ic_sup_rates[(ic->ic_phytype == IEEE80211_T_FH) 1005 ? IEEE80211_MODE_FH : IEEE80211_MODE_11B]; 1006 rate = ieee80211_media2rate(ime->ifm_media); 1007 if (rate == 0) 1008 return EINVAL; 1009 for (i = 0; i < rs->rs_nrates; i++) { 1010 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) 1011 break; 1012 } 1013 if (i == rs->rs_nrates) 1014 return EINVAL; 1015 } 1016 if (ic->ic_fixed_rate != i) { 1017 ic->ic_fixed_rate = i; 1018 error = ENETRESET; 1019 } 1020 1021 /* 1022 * combination of mediaopt 1023 * 1024 * hostap adhoc flag0 opmode adhoc_ap comment 1025 * + - - HOSTAP 0 HostAP 1026 * - + - IBSS 0 IBSS 1027 * - + + AHDEMO 0 WaveLAN adhoc 1028 * - - + IBSS 1 Melco old Sta 1029 * also LINK0 1030 * - - - STA 0 Infra Station 1031 */ 1032 newadhoc_ap = 0; 1033 if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 1034 newmode = IEEE80211_M_HOSTAP; 1035 else if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 1036 if (ic->ic_phytype == IEEE80211_T_DS && 1037 (ime->ifm_media & IFM_FLAG0)) 1038 newmode = IEEE80211_M_AHDEMO; 1039 else 1040 newmode = IEEE80211_M_IBSS; 1041 } else if (ime->ifm_media & IFM_FLAG0) { 1042 newmode = IEEE80211_M_IBSS; 1043 newadhoc_ap = 1; 1044 } else 1045 newmode = IEEE80211_M_STA; 1046 if (ic->ic_opmode != newmode || sc->sc_adhoc_ap != newadhoc_ap) { 1047 ic->ic_opmode = newmode; 1048 sc->sc_adhoc_ap = newadhoc_ap; 1049 error = ENETRESET; 1050 } 1051 1052 if (error == ENETRESET) { 1053 if (sc->sc_enabled) 1054 error = awi_init(ifp); 1055 else 1056 error = 0; 1057 } 1058 return error; 1059 } 1060 1061 static void 1062 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1063 { 1064 struct awi_softc *sc = ifp->if_softc; 1065 struct ieee80211com *ic = &sc->sc_ic; 1066 int rate; 1067 enum ieee80211_phymode mode; 1068 1069 imr->ifm_status = IFM_AVALID; 1070 if (ic->ic_state == IEEE80211_S_RUN) 1071 imr->ifm_status |= IFM_ACTIVE; 1072 imr->ifm_active = IFM_IEEE80211; 1073 if (ic->ic_phytype == IEEE80211_T_FH) 1074 mode = IEEE80211_MODE_FH; 1075 else 1076 mode = IEEE80211_MODE_11B; 1077 if (ic->ic_state == IEEE80211_S_RUN) { 1078 rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 1079 IEEE80211_RATE_VAL; 1080 } else { 1081 if (ic->ic_fixed_rate == -1) 1082 rate = 0; 1083 else 1084 rate = ic->ic_sup_rates[mode]. 1085 rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 1086 } 1087 imr->ifm_active |= ieee80211_rate2media(ic, rate, mode); 1088 switch (ic->ic_opmode) { 1089 case IEEE80211_M_MONITOR: /* we should never reach here */ 1090 break; 1091 case IEEE80211_M_STA: 1092 break; 1093 case IEEE80211_M_IBSS: 1094 if (sc->sc_adhoc_ap) 1095 imr->ifm_active |= IFM_FLAG0; 1096 else 1097 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1098 break; 1099 case IEEE80211_M_AHDEMO: 1100 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 1101 break; 1102 case IEEE80211_M_HOSTAP: 1103 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1104 break; 1105 } 1106 } 1107 1108 static int 1109 awi_mode_init(struct awi_softc *sc) 1110 { 1111 struct ifnet *ifp = &sc->sc_if; 1112 int n, error; 1113 #ifdef __FreeBSD__ 1114 struct ifmultiaddr *ifma; 1115 #else 1116 struct ether_multi *enm; 1117 struct ether_multistep step; 1118 #endif 1119 1120 /* reinitialize muticast filter */ 1121 n = 0; 1122 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 1123 if (sc->sc_ic.ic_opmode != IEEE80211_M_HOSTAP && 1124 (ifp->if_flags & IFF_PROMISC)) { 1125 sc->sc_mib_mac.aPromiscuous_Enable = 1; 1126 goto set_mib; 1127 } 1128 sc->sc_mib_mac.aPromiscuous_Enable = 0; 1129 #ifdef __FreeBSD__ 1130 if (ifp->if_amcount != 0) 1131 goto set_mib; 1132 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1133 if (ifma->ifma_addr->sa_family != AF_LINK) 1134 continue; 1135 if (n == AWI_GROUP_ADDR_SIZE) 1136 goto set_mib; 1137 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 1138 LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 1139 n++; 1140 } 1141 #else 1142 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 1143 while (enm != NULL) { 1144 if (n == AWI_GROUP_ADDR_SIZE || 1145 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) 1146 goto set_mib; 1147 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 1148 enm->enm_addrlo); 1149 n++; 1150 ETHER_NEXT_MULTI(step, enm); 1151 } 1152 #endif 1153 for (; n < AWI_GROUP_ADDR_SIZE; n++) 1154 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, 1155 IEEE80211_ADDR_LEN); 1156 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1157 1158 set_mib: 1159 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 1160 ifp->if_flags &= ~IFF_ALLMULTI; 1161 else 1162 ifp->if_flags |= IFF_ALLMULTI; 1163 sc->sc_mib_mgt.Wep_Required = 1164 (sc->sc_ic.ic_flags & IEEE80211_F_PRIVACY) ? AWI_WEP_ON : AWI_WEP_OFF; 1165 1166 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1167 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1168 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1169 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1170 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1171 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 1172 return error; 1173 } 1174 return 0; 1175 } 1176 1177 static void 1178 awi_rx_int(struct awi_softc *sc) 1179 { 1180 struct ieee80211com *ic = &sc->sc_ic; 1181 struct ifnet *ifp = &sc->sc_if; 1182 struct ieee80211_frame_min *wh; 1183 struct ieee80211_node *ni; 1184 u_int8_t state, rate, rssi; 1185 u_int16_t len; 1186 u_int32_t frame, next, rstamp, rxoff; 1187 struct mbuf *m; 1188 1189 rxoff = sc->sc_rxdoff; 1190 for (;;) { 1191 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1192 if (state & AWI_RXD_ST_OWN) 1193 break; 1194 if (!(state & AWI_RXD_ST_CONSUMED)) { 1195 if (sc->sc_substate != AWI_ST_NONE) 1196 goto rx_next; 1197 if (state & AWI_RXD_ST_RXERROR) { 1198 ifp->if_ierrors++; 1199 goto rx_next; 1200 } 1201 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1202 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1203 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1204 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1205 0x7fff; 1206 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1207 m = awi_devget(sc, frame, len); 1208 if (m == NULL) { 1209 ifp->if_ierrors++; 1210 goto rx_next; 1211 } 1212 if (state & AWI_RXD_ST_LF) { 1213 /* TODO check my bss */ 1214 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1215 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1216 sc->sc_rx_timer = 10; 1217 ifp->if_timer = 1; 1218 } 1219 if ((ifp->if_flags & IFF_DEBUG) && 1220 (ifp->if_flags & IFF_LINK2)) 1221 ieee80211_dump_pkt(m->m_data, m->m_len, 1222 rate / 5, rssi); 1223 if ((ifp->if_flags & IFF_LINK0) || 1224 sc->sc_adhoc_ap) 1225 m = awi_ether_modcap(sc, m); 1226 else 1227 m = m_pullup(m, sizeof(*wh)); 1228 if (m == NULL) { 1229 ifp->if_ierrors++; 1230 goto rx_next; 1231 } 1232 wh = mtod(m, struct ieee80211_frame_min *); 1233 ni = ieee80211_find_rxnode(ic, wh); 1234 ieee80211_input(ic, m, ni, rssi, rstamp); 1235 /* 1236 * The frame may have caused the 1237 * node to be marked for reclamation 1238 * (e.g. in response to a DEAUTH 1239 * message) so use release_node here 1240 * instead of unref_node. 1241 */ 1242 ieee80211_free_node(ni); 1243 } else 1244 sc->sc_rxpend = m; 1245 rx_next: 1246 state |= AWI_RXD_ST_CONSUMED; 1247 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1248 } 1249 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1250 if (next & AWI_RXD_NEXT_LAST) 1251 break; 1252 /* make sure the next pointer is correct */ 1253 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1254 break; 1255 state |= AWI_RXD_ST_OWN; 1256 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1257 rxoff = next & 0x7fff; 1258 } 1259 sc->sc_rxdoff = rxoff; 1260 } 1261 1262 static void 1263 awi_tx_int(struct awi_softc *sc) 1264 { 1265 struct ifnet *ifp = &sc->sc_if; 1266 u_int8_t flags; 1267 1268 while (sc->sc_txdone != sc->sc_txnext) { 1269 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1270 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1271 break; 1272 if (flags & AWI_TXD_ST_ERROR) 1273 ifp->if_oerrors++; 1274 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1275 0x7fff; 1276 } 1277 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1278 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1279 sc->sc_tx_timer = 0; 1280 ifp->if_flags &= ~IFF_OACTIVE; 1281 awi_start(ifp); 1282 } 1283 1284 static struct mbuf * 1285 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1286 { 1287 struct ifnet *ifp = &sc->sc_if; 1288 struct mbuf *m; 1289 struct mbuf *top, **mp; 1290 u_int tlen; 1291 1292 top = sc->sc_rxpend; 1293 mp = ⊤ 1294 if (top != NULL) { 1295 sc->sc_rxpend = NULL; 1296 top->m_pkthdr.len += len; 1297 m = top; 1298 while (*mp != NULL) { 1299 m = *mp; 1300 mp = &m->m_next; 1301 } 1302 if (m->m_flags & M_EXT) 1303 tlen = m->m_ext.ext_size; 1304 else if (m->m_flags & M_PKTHDR) 1305 tlen = MHLEN; 1306 else 1307 tlen = MLEN; 1308 tlen -= m->m_len; 1309 if (tlen > len) 1310 tlen = len; 1311 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1312 off += tlen; 1313 len -= tlen; 1314 } 1315 1316 while (len > 0) { 1317 if (top == NULL) { 1318 MGETHDR(m, M_DONTWAIT, MT_DATA); 1319 if (m == NULL) 1320 return NULL; 1321 m->m_pkthdr.rcvif = ifp; 1322 m->m_pkthdr.len = len; 1323 m->m_len = MHLEN; 1324 m->m_flags |= M_HASFCS; 1325 } else { 1326 MGET(m, M_DONTWAIT, MT_DATA); 1327 if (m == NULL) { 1328 m_freem(top); 1329 return NULL; 1330 } 1331 m->m_len = MLEN; 1332 } 1333 if (len >= MINCLSIZE) { 1334 MCLGET(m, M_DONTWAIT); 1335 if (m->m_flags & M_EXT) 1336 m->m_len = m->m_ext.ext_size; 1337 } 1338 if (top == NULL) { 1339 int hdrlen = sizeof(struct ieee80211_frame) + 1340 sizeof(struct llc); 1341 caddr_t newdata = (caddr_t) 1342 ALIGN(m->m_data + hdrlen) - hdrlen; 1343 m->m_len -= newdata - m->m_data; 1344 m->m_data = newdata; 1345 } 1346 if (m->m_len > len) 1347 m->m_len = len; 1348 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1349 off += m->m_len; 1350 len -= m->m_len; 1351 *mp = m; 1352 mp = &m->m_next; 1353 } 1354 return top; 1355 } 1356 1357 /* 1358 * Initialize hardware and start firmware to accept commands. 1359 * Called everytime after power on firmware. 1360 */ 1361 1362 static int 1363 awi_hw_init(struct awi_softc *sc) 1364 { 1365 u_int8_t status; 1366 u_int16_t intmask; 1367 int i, error; 1368 1369 sc->sc_enab_intr = 0; 1370 sc->sc_invalid = 0; /* XXX: really? */ 1371 awi_drvstate(sc, AWI_DRV_RESET); 1372 1373 /* reset firmware */ 1374 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1375 DELAY(100); 1376 awi_write_1(sc, AWI_SELFTEST, 0); 1377 awi_write_1(sc, AWI_CMD, 0); 1378 awi_write_1(sc, AWI_BANNER, 0); 1379 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1380 DELAY(100); 1381 1382 /* wait for selftest completion */ 1383 for (i = 0; ; i++) { 1384 if (sc->sc_invalid) 1385 return ENXIO; 1386 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1387 printf("%s: failed to complete selftest (timeout)\n", 1388 sc->sc_if.if_xname); 1389 return ENXIO; 1390 } 1391 status = awi_read_1(sc, AWI_SELFTEST); 1392 if ((status & 0xf0) == 0xf0) 1393 break; 1394 if (sc->sc_cansleep) { 1395 sc->sc_sleep_cnt++; 1396 (void)tsleep(sc, PWAIT, "awitst", 1); 1397 sc->sc_sleep_cnt--; 1398 } else { 1399 DELAY(1000*1000/hz); 1400 } 1401 } 1402 if (status != AWI_SELFTEST_PASSED) { 1403 printf("%s: failed to complete selftest (code %x)\n", 1404 sc->sc_if.if_xname, status); 1405 return ENXIO; 1406 } 1407 1408 /* check banner to confirm firmware write it */ 1409 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1410 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1411 printf("%s: failed to complete selftest (bad banner)\n", 1412 sc->sc_if.if_xname); 1413 for (i = 0; i < AWI_BANNER_LEN; i++) 1414 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1415 printf("\n"); 1416 return ENXIO; 1417 } 1418 1419 /* initializing interrupt */ 1420 sc->sc_enab_intr = 1; 1421 error = awi_intr_lock(sc); 1422 if (error) 1423 return error; 1424 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1425 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1426 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1427 awi_write_1(sc, AWI_INTMASK2, 0); 1428 awi_write_1(sc, AWI_INTSTAT, 0); 1429 awi_write_1(sc, AWI_INTSTAT2, 0); 1430 awi_intr_unlock(sc); 1431 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1432 1433 /* issuing interface test command */ 1434 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1435 if (error) { 1436 printf("%s: failed to complete selftest", 1437 sc->sc_if.if_xname); 1438 if (error == ENXIO) 1439 printf(" (no hardware)\n"); 1440 else if (error != EWOULDBLOCK) 1441 printf(" (error %d)\n", error); 1442 else if (sc->sc_cansleep) 1443 printf(" (lost interrupt)\n"); 1444 else 1445 printf(" (command timeout)\n"); 1446 return error; 1447 } 1448 1449 /* Initialize VBM */ 1450 awi_write_1(sc, AWI_VBM_OFFSET, 0); 1451 awi_write_1(sc, AWI_VBM_LENGTH, 1); 1452 awi_write_1(sc, AWI_VBM_BITMAP, 0); 1453 return 0; 1454 } 1455 1456 /* 1457 * Extract the factory default MIB value from firmware and assign the driver 1458 * default value. 1459 * Called once at attaching the interface. 1460 */ 1461 1462 static int 1463 awi_init_mibs(struct awi_softc *sc) 1464 { 1465 int chan, i, error; 1466 struct ieee80211com *ic = &sc->sc_ic; 1467 struct awi_chanset *cs; 1468 1469 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1470 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1471 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1472 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1473 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1474 printf("%s: failed to get default mib value (error %d)\n", 1475 sc->sc_if.if_xname, error); 1476 return error; 1477 } 1478 1479 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1480 for (cs = awi_chanset; ; cs++) { 1481 if (cs->cs_type == 0) { 1482 printf("%s: failed to set available channel\n", 1483 sc->sc_if.if_xname); 1484 return ENXIO; 1485 } 1486 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1487 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1488 break; 1489 } 1490 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1491 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1492 chan = IEEE80211_FH_CHAN(i % 3 + 1, i); 1493 setbit(sc->sc_ic.ic_chan_avail, chan); 1494 /* XXX for FHSS, does frequency matter? */ 1495 ic->ic_channels[chan].ic_freq = 0; 1496 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1497 /* 1498 * According to the IEEE 802.11 specification, 1499 * hop pattern parameter for FH phy should be 1500 * incremented by 3 for given hop chanset, i.e., 1501 * the chanset parameter is calculated for given 1502 * hop patter. However, BayStack 650 Access Points 1503 * apparently use fixed hop chanset parameter value 1504 * 1 for any hop pattern. So we also try this 1505 * combination of hop chanset and pattern. 1506 */ 1507 chan = IEEE80211_FH_CHAN(1, i); 1508 setbit(sc->sc_ic.ic_chan_avail, chan); 1509 ic->ic_channels[chan].ic_freq = 0; /* XXX */ 1510 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1511 } 1512 } else { 1513 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1514 setbit(sc->sc_ic.ic_chan_avail, i); 1515 ic->ic_channels[i].ic_freq = 1516 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 1517 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 1518 } 1519 } 1520 sc->sc_cur_chan = cs->cs_def; 1521 ic->ic_ibss_chan = &ic->ic_channels[cs->cs_def]; 1522 1523 sc->sc_mib_local.Fragmentation_Dis = 1; 1524 sc->sc_mib_local.Add_PLCP_Dis = 0; 1525 sc->sc_mib_local.MAC_Hdr_Prsv = 0; 1526 sc->sc_mib_local.Rx_Mgmt_Que_En = 0; 1527 sc->sc_mib_local.Re_Assembly_Dis = 1; 1528 sc->sc_mib_local.Strip_PLCP_Dis = 0; 1529 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1530 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1531 sc->sc_mib_local.Check_Seq_Cntl_Dis = 0; 1532 sc->sc_mib_local.Flush_CFP_Queue_On_CF_End = 0; 1533 sc->sc_mib_local.Network_Mode = 1; 1534 sc->sc_mib_local.PWD_Lvl = 0; 1535 sc->sc_mib_local.CFP_Mode = 0; 1536 1537 /* allocate buffers */ 1538 sc->sc_txbase = AWI_BUFFERS; 1539 sc->sc_txend = sc->sc_txbase + 1540 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1541 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1542 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1543 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1544 sc->sc_txend - sc->sc_txbase); 1545 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1546 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1547 AWI_BUFFERS_END - sc->sc_txend); 1548 sc->sc_mib_local.Acting_as_AP = 0; 1549 sc->sc_mib_local.Fill_CFP = 0; 1550 1551 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1552 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1553 1554 sc->sc_mib_mgt.aPower_Mgt_Mode = 0; 1555 sc->sc_mib_mgt.aDTIM_Period = 1; 1556 LE_WRITE_2(&sc->sc_mib_mgt.aATIM_Window, 0); 1557 return 0; 1558 } 1559 1560 static int 1561 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1562 { 1563 int error; 1564 u_int8_t size, *ptr; 1565 1566 switch (mib) { 1567 case AWI_MIB_LOCAL: 1568 ptr = (u_int8_t *)&sc->sc_mib_local; 1569 size = sizeof(sc->sc_mib_local); 1570 break; 1571 case AWI_MIB_ADDR: 1572 ptr = (u_int8_t *)&sc->sc_mib_addr; 1573 size = sizeof(sc->sc_mib_addr); 1574 break; 1575 case AWI_MIB_MAC: 1576 ptr = (u_int8_t *)&sc->sc_mib_mac; 1577 size = sizeof(sc->sc_mib_mac); 1578 break; 1579 case AWI_MIB_STAT: 1580 ptr = (u_int8_t *)&sc->sc_mib_stat; 1581 size = sizeof(sc->sc_mib_stat); 1582 break; 1583 case AWI_MIB_MGT: 1584 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1585 size = sizeof(sc->sc_mib_mgt); 1586 break; 1587 case AWI_MIB_PHY: 1588 ptr = (u_int8_t *)&sc->sc_mib_phy; 1589 size = sizeof(sc->sc_mib_phy); 1590 break; 1591 default: 1592 return EINVAL; 1593 } 1594 if (sc->sc_cmd_inprog) { 1595 if ((error = awi_cmd_wait(sc)) != 0) { 1596 if (error == EWOULDBLOCK) { 1597 DPRINTF(("awi_mib: cmd %d inprog", 1598 sc->sc_cmd_inprog)); 1599 } 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_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_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_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_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 ifnet *ifp = ic->ic_ifp; 1858 struct awi_softc *sc = ifp->if_softc; 1859 struct ieee80211_node *ni; 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(ic, 1); 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, 2046 sizeof(ni->ni_tstamp)); 2047 ni->ni_rstamp = 0; 2048 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 2049 } else 2050 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 2051 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 2052 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 2053 ni->ni_tstamp.data, sizeof(ni->ni_tstamp.data)); 2054 awi_write_4(sc, AWI_CA_SYNC_REFTIME, ni->ni_rstamp); 2055 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2056 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 2057 != 0) 2058 break; 2059 /* FALLTHRU */ 2060 case AWI_ST_SUB_SYNC: 2061 sc->sc_substate = AWI_ST_NONE; 2062 if (ic->ic_flags & IEEE80211_F_SIBSS) { 2063 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 2064 AWI_MIB_MGT, AWI_WAIT)) != 0) 2065 break; 2066 IEEE80211_ADDR_COPY(ni->ni_bssid, 2067 &sc->sc_mib_mgt.aCurrent_BSS_ID); 2068 } else { 2069 if (nstate == IEEE80211_S_RUN) { 2070 sc->sc_rx_timer = 10; 2071 ifp->if_timer = 1; 2072 } 2073 } 2074 error = 0; 2075 break; 2076 default: 2077 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 2078 stname[nstate], substname[sc->sc_substate])); 2079 sc->sc_substate = AWI_ST_NONE; 2080 error = EIO; 2081 break; 2082 } 2083 goto out; 2084 } 2085 2086 sc->sc_substate = AWI_ST_NONE; 2087 2088 return (*sc->sc_newstate)(ic, nstate, arg); 2089 out: 2090 if (error != 0) { 2091 if (error == EINPROGRESS) 2092 error = 0; 2093 return error; 2094 } 2095 return (*sc->sc_newstate)(ic, nstate, arg); 2096 } 2097 2098 static void 2099 awi_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0, 2100 struct ieee80211_node *ni, 2101 int subtype, int rssi, u_int32_t rstamp) 2102 { 2103 struct awi_softc *sc = ic->ic_ifp->if_softc; 2104 2105 /* probe request is handled by hardware */ 2106 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2107 return; 2108 (*sc->sc_recv_mgmt)(ic, m0, ni, subtype, rssi, rstamp); 2109 } 2110 2111 static int 2112 awi_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, 2113 int type, int arg) 2114 { 2115 struct awi_softc *sc = ic->ic_ifp->if_softc; 2116 2117 /* probe request is handled by hardware */ 2118 if (type == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2119 return 0; 2120 return (*sc->sc_send_mgmt)(ic, ni, type, arg); 2121 } 2122 2123 static struct mbuf * 2124 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 2125 { 2126 struct ieee80211com *ic = &sc->sc_ic; 2127 struct ieee80211_node *ni = ic->ic_bss; 2128 struct ether_header *eh; 2129 struct ieee80211_frame *wh; 2130 2131 if (m->m_len < sizeof(struct ether_header)) { 2132 m = m_pullup(m, sizeof(struct ether_header)); 2133 if (m == NULL) 2134 return NULL; 2135 } 2136 eh = mtod(m, struct ether_header *); 2137 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 2138 if (m == NULL) 2139 return NULL; 2140 wh = mtod(m, struct ieee80211_frame *); 2141 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 2142 *(u_int16_t *)wh->i_dur = 0; 2143 *(u_int16_t *)wh->i_seq = 2144 htole16(ni->ni_txseqs[0] << IEEE80211_SEQ_SEQ_SHIFT); 2145 ni->ni_txseqs[0]++; 2146 if (ic->ic_opmode == IEEE80211_M_IBSS || 2147 ic->ic_opmode == IEEE80211_M_AHDEMO) { 2148 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2149 if (sc->sc_adhoc_ap) 2150 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_macaddr); 2151 else 2152 IEEE80211_ADDR_COPY(wh->i_addr1, eh->ether_dhost); 2153 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2154 IEEE80211_ADDR_COPY(wh->i_addr3, ni->ni_bssid); 2155 } else { 2156 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 2157 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_bssid); 2158 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2159 IEEE80211_ADDR_COPY(wh->i_addr3, eh->ether_dhost); 2160 } 2161 return m; 2162 } 2163 2164 static struct mbuf * 2165 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 2166 { 2167 struct ieee80211com *ic = &sc->sc_ic; 2168 struct ether_header eh; 2169 struct ieee80211_frame wh; 2170 struct llc *llc; 2171 2172 if (m->m_len < sizeof(wh) + sizeof(eh)) { 2173 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 2174 if (m == NULL) 2175 return NULL; 2176 } 2177 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 2178 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 2179 return m; 2180 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 2181 m_adj(m, sizeof(eh) - sizeof(*llc)); 2182 if (ic->ic_opmode == IEEE80211_M_IBSS || 2183 ic->ic_opmode == IEEE80211_M_AHDEMO) 2184 IEEE80211_ADDR_COPY(wh.i_addr2, eh.ether_shost); 2185 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 2186 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 2187 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 2188 llc->llc_control = LLC_UI; 2189 llc->llc_snap.org_code[0] = 0; 2190 llc->llc_snap.org_code[1] = 0; 2191 llc->llc_snap.org_code[2] = 0; 2192 llc->llc_snap.ether_type = eh.ether_type; 2193 return m; 2194 }
Cache object: 7013af799639ca24b6c048b347cbf84f
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