awi.c revision 1.66
1 /* $NetBSD: awi.c,v 1.66 2004/10/30 18:08:36 thorpej 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 (at) NetBSD.org>. 83 * Then the driver module completely rewritten to support cards with DS phy 84 * and to support adhoc mode by Atsushi Onoe <onoe (at) NetBSD.org> 85 */ 86 87 #include <sys/cdefs.h> 88 #ifdef __NetBSD__ 89 __KERNEL_RCSID(0, "$NetBSD: awi.c,v 1.66 2004/10/30 18:08:36 thorpej 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); 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_PRIVACY) 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_PRIVACY) { 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) 803 ieee80211_release_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 (ifp->if_flags & IFF_RUNNING) 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_PRIVACY) ? 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 ni = ieee80211_find_rxnode(ic, wh); 1221 ieee80211_input(ifp, m, ni, rssi, rstamp); 1222 /* 1223 * The frame may have caused the 1224 * node to be marked for reclamation 1225 * (e.g. in response to a DEAUTH 1226 * message) so use release_node here 1227 * instead of unref_node. 1228 */ 1229 ieee80211_release_node(ic, ni); 1230 } else 1231 sc->sc_rxpend = m; 1232 rx_next: 1233 state |= AWI_RXD_ST_CONSUMED; 1234 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1235 } 1236 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1237 if (next & AWI_RXD_NEXT_LAST) 1238 break; 1239 /* make sure the next pointer is correct */ 1240 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1241 break; 1242 state |= AWI_RXD_ST_OWN; 1243 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1244 rxoff = next & 0x7fff; 1245 } 1246 sc->sc_rxdoff = rxoff; 1247 } 1248 1249 static void 1250 awi_tx_int(struct awi_softc *sc) 1251 { 1252 struct ifnet *ifp = &sc->sc_ic.ic_if; 1253 u_int8_t flags; 1254 1255 while (sc->sc_txdone != sc->sc_txnext) { 1256 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1257 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1258 break; 1259 if (flags & AWI_TXD_ST_ERROR) 1260 ifp->if_oerrors++; 1261 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1262 0x7fff; 1263 } 1264 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1265 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1266 sc->sc_tx_timer = 0; 1267 ifp->if_flags &= ~IFF_OACTIVE; 1268 awi_start(ifp); 1269 } 1270 1271 static struct mbuf * 1272 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1273 { 1274 struct ifnet *ifp = &sc->sc_ic.ic_if; 1275 struct mbuf *m; 1276 struct mbuf *top, **mp; 1277 u_int tlen; 1278 1279 top = sc->sc_rxpend; 1280 mp = ⊤ 1281 if (top != NULL) { 1282 sc->sc_rxpend = NULL; 1283 top->m_pkthdr.len += len; 1284 m = top; 1285 while (*mp != NULL) { 1286 m = *mp; 1287 mp = &m->m_next; 1288 } 1289 if (m->m_flags & M_EXT) 1290 tlen = m->m_ext.ext_size; 1291 else if (m->m_flags & M_PKTHDR) 1292 tlen = MHLEN; 1293 else 1294 tlen = MLEN; 1295 tlen -= m->m_len; 1296 if (tlen > len) 1297 tlen = len; 1298 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1299 off += tlen; 1300 len -= tlen; 1301 } 1302 1303 while (len > 0) { 1304 if (top == NULL) { 1305 MGETHDR(m, M_DONTWAIT, MT_DATA); 1306 if (m == NULL) 1307 return NULL; 1308 m->m_pkthdr.rcvif = ifp; 1309 m->m_pkthdr.len = len; 1310 m->m_len = MHLEN; 1311 m->m_flags |= M_HASFCS; 1312 } else { 1313 MGET(m, M_DONTWAIT, MT_DATA); 1314 if (m == NULL) { 1315 m_freem(top); 1316 return NULL; 1317 } 1318 m->m_len = MLEN; 1319 } 1320 if (len >= MINCLSIZE) { 1321 MCLGET(m, M_DONTWAIT); 1322 if (m->m_flags & M_EXT) 1323 m->m_len = m->m_ext.ext_size; 1324 } 1325 if (top == NULL) { 1326 int hdrlen = sizeof(struct ieee80211_frame) + 1327 sizeof(struct llc); 1328 caddr_t newdata = (caddr_t) 1329 ALIGN(m->m_data + hdrlen) - hdrlen; 1330 m->m_len -= newdata - m->m_data; 1331 m->m_data = newdata; 1332 } 1333 if (m->m_len > len) 1334 m->m_len = len; 1335 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1336 off += m->m_len; 1337 len -= m->m_len; 1338 *mp = m; 1339 mp = &m->m_next; 1340 } 1341 return top; 1342 } 1343 1344 /* 1345 * Initialize hardware and start firmware to accept commands. 1346 * Called everytime after power on firmware. 1347 */ 1348 1349 static int 1350 awi_hw_init(struct awi_softc *sc) 1351 { 1352 u_int8_t status; 1353 u_int16_t intmask; 1354 int i, error; 1355 1356 sc->sc_enab_intr = 0; 1357 sc->sc_invalid = 0; /* XXX: really? */ 1358 awi_drvstate(sc, AWI_DRV_RESET); 1359 1360 /* reset firmware */ 1361 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1362 DELAY(100); 1363 awi_write_1(sc, AWI_SELFTEST, 0); 1364 awi_write_1(sc, AWI_CMD, 0); 1365 awi_write_1(sc, AWI_BANNER, 0); 1366 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1367 DELAY(100); 1368 1369 /* wait for selftest completion */ 1370 for (i = 0; ; i++) { 1371 if (sc->sc_invalid) 1372 return ENXIO; 1373 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1374 printf("%s: failed to complete selftest (timeout)\n", 1375 sc->sc_ic.ic_if.if_xname); 1376 return ENXIO; 1377 } 1378 status = awi_read_1(sc, AWI_SELFTEST); 1379 if ((status & 0xf0) == 0xf0) 1380 break; 1381 if (sc->sc_cansleep) { 1382 sc->sc_sleep_cnt++; 1383 (void)tsleep(sc, PWAIT, "awitst", 1); 1384 sc->sc_sleep_cnt--; 1385 } else { 1386 DELAY(1000*1000/hz); 1387 } 1388 } 1389 if (status != AWI_SELFTEST_PASSED) { 1390 printf("%s: failed to complete selftest (code %x)\n", 1391 sc->sc_ic.ic_if.if_xname, status); 1392 return ENXIO; 1393 } 1394 1395 /* check banner to confirm firmware write it */ 1396 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1397 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1398 printf("%s: failed to complete selftest (bad banner)\n", 1399 sc->sc_ic.ic_if.if_xname); 1400 for (i = 0; i < AWI_BANNER_LEN; i++) 1401 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1402 printf("\n"); 1403 return ENXIO; 1404 } 1405 1406 /* initializing interrupt */ 1407 sc->sc_enab_intr = 1; 1408 error = awi_intr_lock(sc); 1409 if (error) 1410 return error; 1411 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1412 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1413 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1414 awi_write_1(sc, AWI_INTMASK2, 0); 1415 awi_write_1(sc, AWI_INTSTAT, 0); 1416 awi_write_1(sc, AWI_INTSTAT2, 0); 1417 awi_intr_unlock(sc); 1418 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1419 1420 /* issuing interface test command */ 1421 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1422 if (error) { 1423 printf("%s: failed to complete selftest", 1424 sc->sc_ic.ic_if.if_xname); 1425 if (error == ENXIO) 1426 printf(" (no hardware)\n"); 1427 else if (error != EWOULDBLOCK) 1428 printf(" (error %d)\n", error); 1429 else if (sc->sc_cansleep) 1430 printf(" (lost interrupt)\n"); 1431 else 1432 printf(" (command timeout)\n"); 1433 return error; 1434 } 1435 1436 /* Initialize VBM */ 1437 awi_write_1(sc, AWI_VBM_OFFSET, 0); 1438 awi_write_1(sc, AWI_VBM_LENGTH, 1); 1439 awi_write_1(sc, AWI_VBM_BITMAP, 0); 1440 return 0; 1441 } 1442 1443 /* 1444 * Extract the factory default MIB value from firmware and assign the driver 1445 * default value. 1446 * Called once at attaching the interface. 1447 */ 1448 1449 static int 1450 awi_init_mibs(struct awi_softc *sc) 1451 { 1452 int chan, i, error; 1453 struct ieee80211com *ic = &sc->sc_ic; 1454 struct awi_chanset *cs; 1455 1456 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1457 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1458 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1459 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1460 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1461 printf("%s: failed to get default mib value (error %d)\n", 1462 ic->ic_if.if_xname, error); 1463 return error; 1464 } 1465 1466 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1467 for (cs = awi_chanset; ; cs++) { 1468 if (cs->cs_type == 0) { 1469 printf("%s: failed to set available channel\n", 1470 ic->ic_if.if_xname); 1471 return ENXIO; 1472 } 1473 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1474 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1475 break; 1476 } 1477 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1478 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1479 chan = IEEE80211_FH_CHAN(i % 3 + 1, i); 1480 setbit(sc->sc_ic.ic_chan_avail, chan); 1481 /* XXX for FHSS, does frequency matter? */ 1482 ic->ic_channels[chan].ic_freq = 0; 1483 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1484 /* 1485 * According to the IEEE 802.11 specification, 1486 * hop pattern parameter for FH phy should be 1487 * incremented by 3 for given hop chanset, i.e., 1488 * the chanset parameter is calculated for given 1489 * hop patter. However, BayStack 650 Access Points 1490 * apparently use fixed hop chanset parameter value 1491 * 1 for any hop pattern. So we also try this 1492 * combination of hop chanset and pattern. 1493 */ 1494 chan = IEEE80211_FH_CHAN(1, i); 1495 setbit(sc->sc_ic.ic_chan_avail, chan); 1496 ic->ic_channels[chan].ic_freq = 0; /* XXX */ 1497 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1498 } 1499 } else { 1500 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1501 setbit(sc->sc_ic.ic_chan_avail, i); 1502 ic->ic_channels[i].ic_freq = 1503 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 1504 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 1505 } 1506 } 1507 sc->sc_cur_chan = cs->cs_def; 1508 ic->ic_ibss_chan = &ic->ic_channels[cs->cs_def]; 1509 1510 sc->sc_mib_local.Fragmentation_Dis = 1; 1511 sc->sc_mib_local.Add_PLCP_Dis = 0; 1512 sc->sc_mib_local.MAC_Hdr_Prsv = 0; 1513 sc->sc_mib_local.Rx_Mgmt_Que_En = 0; 1514 sc->sc_mib_local.Re_Assembly_Dis = 1; 1515 sc->sc_mib_local.Strip_PLCP_Dis = 0; 1516 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1517 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1518 sc->sc_mib_local.Check_Seq_Cntl_Dis = 0; 1519 sc->sc_mib_local.Flush_CFP_Queue_On_CF_End = 0; 1520 sc->sc_mib_local.Network_Mode = 1; 1521 sc->sc_mib_local.PWD_Lvl = 0; 1522 sc->sc_mib_local.CFP_Mode = 0; 1523 1524 /* allocate buffers */ 1525 sc->sc_txbase = AWI_BUFFERS; 1526 sc->sc_txend = sc->sc_txbase + 1527 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1528 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1529 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1530 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1531 sc->sc_txend - sc->sc_txbase); 1532 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1533 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1534 AWI_BUFFERS_END - sc->sc_txend); 1535 sc->sc_mib_local.Acting_as_AP = 0; 1536 sc->sc_mib_local.Fill_CFP = 0; 1537 1538 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1539 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1540 1541 sc->sc_mib_mgt.aPower_Mgt_Mode = 0; 1542 sc->sc_mib_mgt.aDTIM_Period = 1; 1543 LE_WRITE_2(&sc->sc_mib_mgt.aATIM_Window, 0); 1544 return 0; 1545 } 1546 1547 static int 1548 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1549 { 1550 int error; 1551 u_int8_t size, *ptr; 1552 1553 switch (mib) { 1554 case AWI_MIB_LOCAL: 1555 ptr = (u_int8_t *)&sc->sc_mib_local; 1556 size = sizeof(sc->sc_mib_local); 1557 break; 1558 case AWI_MIB_ADDR: 1559 ptr = (u_int8_t *)&sc->sc_mib_addr; 1560 size = sizeof(sc->sc_mib_addr); 1561 break; 1562 case AWI_MIB_MAC: 1563 ptr = (u_int8_t *)&sc->sc_mib_mac; 1564 size = sizeof(sc->sc_mib_mac); 1565 break; 1566 case AWI_MIB_STAT: 1567 ptr = (u_int8_t *)&sc->sc_mib_stat; 1568 size = sizeof(sc->sc_mib_stat); 1569 break; 1570 case AWI_MIB_MGT: 1571 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1572 size = sizeof(sc->sc_mib_mgt); 1573 break; 1574 case AWI_MIB_PHY: 1575 ptr = (u_int8_t *)&sc->sc_mib_phy; 1576 size = sizeof(sc->sc_mib_phy); 1577 break; 1578 default: 1579 return EINVAL; 1580 } 1581 if (sc->sc_cmd_inprog) { 1582 if ((error = awi_cmd_wait(sc)) != 0) { 1583 if (error == EWOULDBLOCK) 1584 DPRINTF(("awi_mib: cmd %d inprog", 1585 sc->sc_cmd_inprog)); 1586 return error; 1587 } 1588 } 1589 sc->sc_cmd_inprog = cmd; 1590 if (cmd == AWI_CMD_SET_MIB) 1591 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1592 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1593 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1594 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1595 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1596 return error; 1597 if (cmd == AWI_CMD_GET_MIB) { 1598 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1599 #ifdef AWI_DEBUG 1600 if (awi_debug) { 1601 int i; 1602 1603 printf("awi_mib: #%d:", mib); 1604 for (i = 0; i < size; i++) 1605 printf(" %02x", ptr[i]); 1606 printf("\n"); 1607 } 1608 #endif 1609 } 1610 return 0; 1611 } 1612 1613 static int 1614 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1615 { 1616 u_int8_t status; 1617 int error = 0; 1618 #ifdef AWI_DEBUG 1619 static const char *cmdname[] = { 1620 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1621 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1622 }; 1623 #endif 1624 1625 #ifdef AWI_DEBUG 1626 if (awi_debug > 1) { 1627 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1628 printf("awi_cmd: #%d", cmd); 1629 else 1630 printf("awi_cmd: %s", cmdname[cmd]); 1631 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1632 } 1633 #endif 1634 sc->sc_cmd_inprog = cmd; 1635 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1636 awi_write_1(sc, AWI_CMD, cmd); 1637 if (wflag == AWI_NOWAIT) 1638 return EINPROGRESS; 1639 if ((error = awi_cmd_wait(sc)) != 0) 1640 return error; 1641 status = awi_read_1(sc, AWI_CMD_STATUS); 1642 awi_write_1(sc, AWI_CMD, 0); 1643 switch (status) { 1644 case AWI_STAT_OK: 1645 break; 1646 case AWI_STAT_BADPARM: 1647 return EINVAL; 1648 default: 1649 printf("%s: command %d failed %x\n", 1650 sc->sc_ic.ic_if.if_xname, cmd, status); 1651 return ENXIO; 1652 } 1653 return 0; 1654 } 1655 1656 static int 1657 awi_cmd_wait(struct awi_softc *sc) 1658 { 1659 int i, error = 0; 1660 1661 i = 0; 1662 while (sc->sc_cmd_inprog) { 1663 if (sc->sc_invalid) 1664 return ENXIO; 1665 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1666 printf("%s: failed to access hardware\n", 1667 sc->sc_ic.ic_if.if_xname); 1668 sc->sc_invalid = 1; 1669 return ENXIO; 1670 } 1671 if (sc->sc_cansleep) { 1672 sc->sc_sleep_cnt++; 1673 error = tsleep(sc, PWAIT, "awicmd", 1674 AWI_CMD_TIMEOUT*hz/1000); 1675 sc->sc_sleep_cnt--; 1676 } else { 1677 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1678 awi_cmd_done(sc); 1679 break; 1680 } 1681 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1682 error = EWOULDBLOCK; 1683 else 1684 DELAY(10); 1685 } 1686 if (error) 1687 break; 1688 } 1689 if (error) { 1690 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1691 sc->sc_cmd_inprog, error)); 1692 } 1693 return error; 1694 } 1695 1696 static void 1697 awi_cmd_done(struct awi_softc *sc) 1698 { 1699 u_int8_t cmd, status; 1700 1701 status = awi_read_1(sc, AWI_CMD_STATUS); 1702 if (status == AWI_STAT_IDLE) 1703 return; /* stray interrupt */ 1704 1705 cmd = sc->sc_cmd_inprog; 1706 sc->sc_cmd_inprog = 0; 1707 wakeup(sc); 1708 awi_write_1(sc, AWI_CMD, 0); 1709 1710 if (status != AWI_STAT_OK) { 1711 printf("%s: command %d failed %x\n", 1712 sc->sc_ic.ic_if.if_xname, cmd, status); 1713 sc->sc_substate = AWI_ST_NONE; 1714 return; 1715 } 1716 if (sc->sc_substate != AWI_ST_NONE) 1717 (void)ieee80211_new_state(&sc->sc_ic, sc->sc_nstate, -1); 1718 } 1719 1720 static int 1721 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1722 { 1723 u_int32_t txd, ntxd, frame; 1724 1725 txd = sc->sc_txnext; 1726 frame = txd + AWI_TXD_SIZE; 1727 if (frame + len > sc->sc_txend) 1728 frame = sc->sc_txbase; 1729 ntxd = frame + len; 1730 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1731 ntxd = sc->sc_txbase; 1732 *framep = frame; 1733 *ntxdp = ntxd; 1734 /* 1735 * Determine if there are any room in ring buffer. 1736 * --- send wait, === new data, +++ conflict (ENOBUFS) 1737 * base........................end 1738 * done----txd=====ntxd OK 1739 * --txd=====done++++ntxd-- full 1740 * --txd=====ntxd done-- OK 1741 * ==ntxd done----txd=== OK 1742 * ==done++++ntxd----txd=== full 1743 * ++ntxd txd=====done++ full 1744 */ 1745 if (txd < ntxd) { 1746 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1747 return ENOBUFS; 1748 } else { 1749 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1750 return ENOBUFS; 1751 } 1752 return 0; 1753 } 1754 1755 static int 1756 awi_lock(struct awi_softc *sc) 1757 { 1758 int error = 0; 1759 1760 #ifdef __NetBSD__ 1761 if (curlwp == NULL) 1762 #else 1763 if (curproc == NULL) 1764 #endif 1765 { 1766 /* 1767 * XXX 1768 * Though driver ioctl should be called with context, 1769 * KAME ipv6 stack calls ioctl in interrupt for now. 1770 * We simply abort the request if there are other 1771 * ioctl requests in progress. 1772 */ 1773 if (sc->sc_busy) { 1774 if (sc->sc_invalid) 1775 return ENXIO; 1776 return EWOULDBLOCK; 1777 } 1778 sc->sc_busy = 1; 1779 sc->sc_cansleep = 0; 1780 return 0; 1781 } 1782 while (sc->sc_busy) { 1783 if (sc->sc_invalid) 1784 return ENXIO; 1785 sc->sc_sleep_cnt++; 1786 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1787 sc->sc_sleep_cnt--; 1788 if (error) 1789 return error; 1790 } 1791 sc->sc_busy = 1; 1792 sc->sc_cansleep = 1; 1793 return 0; 1794 } 1795 1796 static void 1797 awi_unlock(struct awi_softc *sc) 1798 { 1799 sc->sc_busy = 0; 1800 sc->sc_cansleep = 0; 1801 if (sc->sc_sleep_cnt) 1802 wakeup(sc); 1803 } 1804 1805 static int 1806 awi_intr_lock(struct awi_softc *sc) 1807 { 1808 u_int8_t status; 1809 int i, retry; 1810 1811 status = 1; 1812 for (retry = 0; retry < 10; retry++) { 1813 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1814 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1815 break; 1816 DELAY(5); 1817 } 1818 if (status != 0) 1819 break; 1820 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1821 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1822 break; 1823 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1824 } 1825 if (status != 0) { 1826 printf("%s: failed to lock interrupt\n", 1827 sc->sc_ic.ic_if.if_xname); 1828 return ENXIO; 1829 } 1830 return 0; 1831 } 1832 1833 static void 1834 awi_intr_unlock(struct awi_softc *sc) 1835 { 1836 1837 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1838 } 1839 1840 static int 1841 awi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1842 { 1843 struct awi_softc *sc = ic->ic_softc; 1844 struct ieee80211_node *ni; 1845 struct ifnet *ifp = &ic->ic_if; 1846 int error; 1847 u_int8_t newmode; 1848 enum ieee80211_state ostate; 1849 #ifdef AWI_DEBUG 1850 static const char *stname[] = 1851 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1852 static const char *substname[] = 1853 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1854 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1855 #endif /* AWI_DEBUG */ 1856 1857 ostate = ic->ic_state; 1858 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1859 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1860 1861 /* set LED */ 1862 switch (nstate) { 1863 case IEEE80211_S_INIT: 1864 awi_drvstate(sc, AWI_DRV_RESET); 1865 break; 1866 case IEEE80211_S_SCAN: 1867 if (ic->ic_opmode == IEEE80211_M_IBSS || 1868 ic->ic_opmode == IEEE80211_M_AHDEMO) 1869 awi_drvstate(sc, AWI_DRV_ADHSC); 1870 else 1871 awi_drvstate(sc, AWI_DRV_INFSY); 1872 break; 1873 case IEEE80211_S_AUTH: 1874 awi_drvstate(sc, AWI_DRV_INFSY); 1875 break; 1876 case IEEE80211_S_ASSOC: 1877 awi_drvstate(sc, AWI_DRV_INFAUTH); 1878 break; 1879 case IEEE80211_S_RUN: 1880 if (ic->ic_opmode == IEEE80211_M_IBSS || 1881 ic->ic_opmode == IEEE80211_M_AHDEMO) 1882 awi_drvstate(sc, AWI_DRV_ADHSY); 1883 else 1884 awi_drvstate(sc, AWI_DRV_INFASSOC); 1885 break; 1886 } 1887 1888 if (nstate == IEEE80211_S_INIT) { 1889 sc->sc_substate = AWI_ST_NONE; 1890 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1891 return (*sc->sc_newstate)(ic, nstate, arg); 1892 } 1893 1894 /* state transition */ 1895 if (nstate == IEEE80211_S_SCAN) { 1896 /* SCAN substate */ 1897 if (sc->sc_substate == AWI_ST_NONE) { 1898 sc->sc_nstate = nstate; /* next state in transition */ 1899 sc->sc_substate = AWI_ST_SCAN_INIT; 1900 } 1901 switch (sc->sc_substate) { 1902 case AWI_ST_SCAN_INIT: 1903 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1904 switch (ostate) { 1905 case IEEE80211_S_RUN: 1906 /* beacon miss */ 1907 if (ifp->if_flags & IFF_DEBUG) 1908 printf("%s: no recent beacons from %s;" 1909 " rescanning\n", 1910 ifp->if_xname, 1911 ether_sprintf(ic->ic_bss->ni_bssid)); 1912 /* FALLTHRU */ 1913 case IEEE80211_S_AUTH: 1914 case IEEE80211_S_ASSOC: 1915 case IEEE80211_S_INIT: 1916 ieee80211_begin_scan(ic); 1917 /* FALLTHRU */ 1918 case IEEE80211_S_SCAN: 1919 /* scan next */ 1920 break; 1921 } 1922 if (ic->ic_flags & IEEE80211_F_ASCAN) 1923 newmode = AWI_SCAN_ACTIVE; 1924 else 1925 newmode = AWI_SCAN_PASSIVE; 1926 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1927 sc->sc_mib_mgt.aScan_Mode = newmode; 1928 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1929 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1930 break; 1931 } 1932 /* FALLTHRU */ 1933 case AWI_ST_SCAN_SETMIB: 1934 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1935 if (sc->sc_cmd_inprog) { 1936 if ((error = awi_cmd_wait(sc)) != 0) 1937 break; 1938 } 1939 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1940 ni = ic->ic_bss; 1941 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1942 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1943 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1944 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1945 awi_write_1(sc, AWI_CA_SCAN_SET, 1946 IEEE80211_FH_CHANSET( 1947 ieee80211_chan2ieee(ic, ni->ni_chan))); 1948 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1949 IEEE80211_FH_CHANPAT( 1950 ieee80211_chan2ieee(ic, ni->ni_chan))); 1951 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1952 } else { 1953 awi_write_1(sc, AWI_CA_SCAN_SET, 1954 ieee80211_chan2ieee(ic, ni->ni_chan)); 1955 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1956 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1957 } 1958 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1959 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 1960 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1961 != 0) 1962 break; 1963 /* FALLTHRU */ 1964 case AWI_ST_SCAN_SCCMD: 1965 ic->ic_state = nstate; 1966 sc->sc_substate = AWI_ST_NONE; 1967 error = EINPROGRESS; 1968 break; 1969 default: 1970 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1971 stname[nstate], substname[sc->sc_substate])); 1972 sc->sc_substate = AWI_ST_NONE; 1973 error = EIO; 1974 break; 1975 } 1976 goto out; 1977 } 1978 1979 if (ostate == IEEE80211_S_SCAN) { 1980 /* set SSID and channel */ 1981 /* substate */ 1982 if (sc->sc_substate == AWI_ST_NONE) { 1983 sc->sc_nstate = nstate; /* next state in transition */ 1984 sc->sc_substate = AWI_ST_SUB_INIT; 1985 } 1986 ni = ic->ic_bss; 1987 switch (sc->sc_substate) { 1988 case AWI_ST_SUB_INIT: 1989 sc->sc_substate = AWI_ST_SUB_SETSS; 1990 IEEE80211_ADDR_COPY(&sc->sc_mib_mgt.aCurrent_BSS_ID, 1991 ni->ni_bssid); 1992 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 1993 AWI_ESS_ID_SIZE); 1994 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 1995 IEEE80211_ELEMID_SSID; 1996 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = ni->ni_esslen; 1997 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 1998 ni->ni_essid, ni->ni_esslen); 1999 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 2000 ni->ni_intval); 2001 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 2002 AWI_NOWAIT)) != 0) 2003 break; 2004 /* FALLTHRU */ 2005 case AWI_ST_SUB_SETSS: 2006 sc->sc_substate = AWI_ST_SUB_SYNC; 2007 if (sc->sc_cmd_inprog) { 2008 if ((error = awi_cmd_wait(sc)) != 0) 2009 break; 2010 } 2011 sc->sc_cmd_inprog = AWI_CMD_SYNC; 2012 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 2013 awi_write_1(sc, AWI_CA_SYNC_SET, 2014 IEEE80211_FH_CHANSET( 2015 ieee80211_chan2ieee(ic, ni->ni_chan))); 2016 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 2017 IEEE80211_FH_CHANPAT( 2018 ieee80211_chan2ieee(ic, ni->ni_chan))); 2019 awi_write_1(sc, AWI_CA_SYNC_IDX, 2020 ni->ni_fhindex); 2021 awi_write_2(sc, AWI_CA_SYNC_DWELL, 2022 ni->ni_fhdwell); 2023 } else { 2024 awi_write_1(sc, AWI_CA_SYNC_SET, 2025 ieee80211_chan2ieee(ic, ni->ni_chan)); 2026 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 2027 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 2028 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 2029 } 2030 if (ic->ic_flags & IEEE80211_F_SIBSS) { 2031 memset(ni->ni_tstamp, 0, sizeof(ni->ni_tstamp)); 2032 ni->ni_rstamp = 0; 2033 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 2034 } else 2035 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 2036 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 2037 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 2038 ni->ni_tstamp, 8); 2039 awi_write_4(sc, AWI_CA_SYNC_REFTIME, ni->ni_rstamp); 2040 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2041 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 2042 != 0) 2043 break; 2044 /* FALLTHRU */ 2045 case AWI_ST_SUB_SYNC: 2046 sc->sc_substate = AWI_ST_NONE; 2047 if (ic->ic_flags & IEEE80211_F_SIBSS) { 2048 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 2049 AWI_MIB_MGT, AWI_WAIT)) != 0) 2050 break; 2051 IEEE80211_ADDR_COPY(ni->ni_bssid, 2052 &sc->sc_mib_mgt.aCurrent_BSS_ID); 2053 } else { 2054 if (nstate == IEEE80211_S_RUN) { 2055 sc->sc_rx_timer = 10; 2056 ifp->if_timer = 1; 2057 } 2058 } 2059 error = 0; 2060 break; 2061 default: 2062 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 2063 stname[nstate], substname[sc->sc_substate])); 2064 sc->sc_substate = AWI_ST_NONE; 2065 error = EIO; 2066 break; 2067 } 2068 goto out; 2069 } 2070 2071 sc->sc_substate = AWI_ST_NONE; 2072 2073 return (*sc->sc_newstate)(ic, nstate, arg); 2074 out: 2075 if (error != 0) { 2076 if (error == EINPROGRESS) 2077 error = 0; 2078 return error; 2079 } 2080 return (*sc->sc_newstate)(ic, nstate, arg); 2081 } 2082 2083 static void 2084 awi_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0, 2085 struct ieee80211_node *ni, 2086 int subtype, int rssi, u_int32_t rstamp) 2087 { 2088 struct awi_softc *sc = ic->ic_softc; 2089 2090 /* probe request is handled by hardware */ 2091 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2092 return; 2093 (*sc->sc_recv_mgmt)(ic, m0, ni, subtype, rssi, rstamp); 2094 } 2095 2096 static int 2097 awi_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, 2098 int type, int arg) 2099 { 2100 struct awi_softc *sc = ic->ic_softc; 2101 2102 /* probe request is handled by hardware */ 2103 if (type == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2104 return 0; 2105 return (*sc->sc_send_mgmt)(ic, ni, type, arg); 2106 } 2107 2108 static struct mbuf * 2109 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 2110 { 2111 struct ieee80211com *ic = &sc->sc_ic; 2112 struct ieee80211_node *ni = ic->ic_bss; 2113 struct ether_header *eh; 2114 struct ieee80211_frame *wh; 2115 2116 if (m->m_len < sizeof(struct ether_header)) { 2117 m = m_pullup(m, sizeof(struct ether_header)); 2118 if (m == NULL) 2119 return NULL; 2120 } 2121 eh = mtod(m, struct ether_header *); 2122 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 2123 if (m == NULL) 2124 return NULL; 2125 wh = mtod(m, struct ieee80211_frame *); 2126 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 2127 *(u_int16_t *)wh->i_dur = 0; 2128 *(u_int16_t *)wh->i_seq = 2129 htole16(ni->ni_txseq << IEEE80211_SEQ_SEQ_SHIFT); 2130 ni->ni_txseq++; 2131 if (ic->ic_opmode == IEEE80211_M_IBSS || 2132 ic->ic_opmode == IEEE80211_M_AHDEMO) { 2133 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2134 if (sc->sc_adhoc_ap) 2135 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_macaddr); 2136 else 2137 IEEE80211_ADDR_COPY(wh->i_addr1, eh->ether_dhost); 2138 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2139 IEEE80211_ADDR_COPY(wh->i_addr3, ni->ni_bssid); 2140 } else { 2141 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 2142 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_bssid); 2143 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2144 IEEE80211_ADDR_COPY(wh->i_addr3, eh->ether_dhost); 2145 } 2146 return m; 2147 } 2148 2149 static struct mbuf * 2150 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 2151 { 2152 struct ieee80211com *ic = &sc->sc_ic; 2153 struct ether_header eh; 2154 struct ieee80211_frame wh; 2155 struct llc *llc; 2156 2157 if (m->m_len < sizeof(wh) + sizeof(eh)) { 2158 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 2159 if (m == NULL) 2160 return NULL; 2161 } 2162 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 2163 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 2164 return m; 2165 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 2166 m_adj(m, sizeof(eh) - sizeof(*llc)); 2167 if (ic->ic_opmode == IEEE80211_M_IBSS || 2168 ic->ic_opmode == IEEE80211_M_AHDEMO) 2169 IEEE80211_ADDR_COPY(wh.i_addr2, eh.ether_shost); 2170 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 2171 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 2172 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 2173 llc->llc_control = LLC_UI; 2174 llc->llc_snap.org_code[0] = 0; 2175 llc->llc_snap.org_code[1] = 0; 2176 llc->llc_snap.org_code[2] = 0; 2177 llc->llc_snap.ether_type = eh.ether_type; 2178 return m; 2179 } 2180
Indexes created Sat Oct 18 17:09:52 GMT 2025