awi.c revision 1.74.14.2
1 /* $NetBSD: awi.c,v 1.74.14.2 2007/10/26 15:44:39 joerg 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 1.74.14.2 2007/10/26 15:44:39 joerg 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 <sys/cpu.h> 140 #include <sys/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, void *); 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, CLLADDR(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, void *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 = ether_ioctl(ifp, cmd, data); 958 #endif 959 if (error == ENETRESET) { 960 /* do not rescan */ 961 if (ifp->if_flags & IFF_RUNNING) 962 error = awi_mode_init(sc); 963 else 964 error = 0; 965 } 966 break; 967 default: 968 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 969 if (error == ENETRESET) { 970 if (sc->sc_enabled) 971 error = awi_init(ifp); 972 else 973 error = 0; 974 } 975 break; 976 } 977 awi_unlock(sc); 978 cantlock: 979 splx(s); 980 return error; 981 } 982 983 /* 984 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 985 * 986 * TBD factor with ieee80211_media_change 987 */ 988 static int 989 awi_media_change(struct ifnet *ifp) 990 { 991 struct awi_softc *sc = ifp->if_softc; 992 struct ieee80211com *ic = &sc->sc_ic; 993 struct ifmedia_entry *ime; 994 enum ieee80211_opmode newmode; 995 int i, rate, newadhoc_ap, error = 0; 996 997 ime = ic->ic_media.ifm_cur; 998 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 999 i = -1; 1000 } else { 1001 struct ieee80211_rateset *rs = 1002 &ic->ic_sup_rates[(ic->ic_phytype == IEEE80211_T_FH) 1003 ? IEEE80211_MODE_FH : IEEE80211_MODE_11B]; 1004 rate = ieee80211_media2rate(ime->ifm_media); 1005 if (rate == 0) 1006 return EINVAL; 1007 for (i = 0; i < rs->rs_nrates; i++) { 1008 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) 1009 break; 1010 } 1011 if (i == rs->rs_nrates) 1012 return EINVAL; 1013 } 1014 if (ic->ic_fixed_rate != i) { 1015 ic->ic_fixed_rate = i; 1016 error = ENETRESET; 1017 } 1018 1019 /* 1020 * combination of mediaopt 1021 * 1022 * hostap adhoc flag0 opmode adhoc_ap comment 1023 * + - - HOSTAP 0 HostAP 1024 * - + - IBSS 0 IBSS 1025 * - + + AHDEMO 0 WaveLAN adhoc 1026 * - - + IBSS 1 Melco old Sta 1027 * also LINK0 1028 * - - - STA 0 Infra Station 1029 */ 1030 newadhoc_ap = 0; 1031 if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 1032 newmode = IEEE80211_M_HOSTAP; 1033 else if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 1034 if (ic->ic_phytype == IEEE80211_T_DS && 1035 (ime->ifm_media & IFM_FLAG0)) 1036 newmode = IEEE80211_M_AHDEMO; 1037 else 1038 newmode = IEEE80211_M_IBSS; 1039 } else if (ime->ifm_media & IFM_FLAG0) { 1040 newmode = IEEE80211_M_IBSS; 1041 newadhoc_ap = 1; 1042 } else 1043 newmode = IEEE80211_M_STA; 1044 if (ic->ic_opmode != newmode || sc->sc_adhoc_ap != newadhoc_ap) { 1045 ic->ic_opmode = newmode; 1046 sc->sc_adhoc_ap = newadhoc_ap; 1047 error = ENETRESET; 1048 } 1049 1050 if (error == ENETRESET) { 1051 if (sc->sc_enabled) 1052 error = awi_init(ifp); 1053 else 1054 error = 0; 1055 } 1056 return error; 1057 } 1058 1059 static void 1060 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1061 { 1062 struct awi_softc *sc = ifp->if_softc; 1063 struct ieee80211com *ic = &sc->sc_ic; 1064 int rate; 1065 enum ieee80211_phymode mode; 1066 1067 imr->ifm_status = IFM_AVALID; 1068 if (ic->ic_state == IEEE80211_S_RUN) 1069 imr->ifm_status |= IFM_ACTIVE; 1070 imr->ifm_active = IFM_IEEE80211; 1071 if (ic->ic_phytype == IEEE80211_T_FH) 1072 mode = IEEE80211_MODE_FH; 1073 else 1074 mode = IEEE80211_MODE_11B; 1075 if (ic->ic_state == IEEE80211_S_RUN) { 1076 rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 1077 IEEE80211_RATE_VAL; 1078 } else { 1079 if (ic->ic_fixed_rate == -1) 1080 rate = 0; 1081 else 1082 rate = ic->ic_sup_rates[mode]. 1083 rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 1084 } 1085 imr->ifm_active |= ieee80211_rate2media(ic, rate, mode); 1086 switch (ic->ic_opmode) { 1087 case IEEE80211_M_MONITOR: /* we should never reach here */ 1088 break; 1089 case IEEE80211_M_STA: 1090 break; 1091 case IEEE80211_M_IBSS: 1092 if (sc->sc_adhoc_ap) 1093 imr->ifm_active |= IFM_FLAG0; 1094 else 1095 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1096 break; 1097 case IEEE80211_M_AHDEMO: 1098 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 1099 break; 1100 case IEEE80211_M_HOSTAP: 1101 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1102 break; 1103 } 1104 } 1105 1106 static int 1107 awi_mode_init(struct awi_softc *sc) 1108 { 1109 struct ifnet *ifp = &sc->sc_if; 1110 int n, error; 1111 #ifdef __FreeBSD__ 1112 struct ifmultiaddr *ifma; 1113 #else 1114 struct ether_multi *enm; 1115 struct ether_multistep step; 1116 #endif 1117 1118 /* reinitialize muticast filter */ 1119 n = 0; 1120 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 1121 if (sc->sc_ic.ic_opmode != IEEE80211_M_HOSTAP && 1122 (ifp->if_flags & IFF_PROMISC)) { 1123 sc->sc_mib_mac.aPromiscuous_Enable = 1; 1124 goto set_mib; 1125 } 1126 sc->sc_mib_mac.aPromiscuous_Enable = 0; 1127 #ifdef __FreeBSD__ 1128 if (ifp->if_amcount != 0) 1129 goto set_mib; 1130 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1131 if (ifma->ifma_addr->sa_family != AF_LINK) 1132 continue; 1133 if (n == AWI_GROUP_ADDR_SIZE) 1134 goto set_mib; 1135 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 1136 CLLADDR(satocsdl(ifma->ifma_addr))); 1137 n++; 1138 } 1139 #else 1140 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 1141 while (enm != NULL) { 1142 if (n == AWI_GROUP_ADDR_SIZE || 1143 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) 1144 goto set_mib; 1145 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 1146 enm->enm_addrlo); 1147 n++; 1148 ETHER_NEXT_MULTI(step, enm); 1149 } 1150 #endif 1151 for (; n < AWI_GROUP_ADDR_SIZE; n++) 1152 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, 1153 IEEE80211_ADDR_LEN); 1154 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1155 1156 set_mib: 1157 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 1158 ifp->if_flags &= ~IFF_ALLMULTI; 1159 else 1160 ifp->if_flags |= IFF_ALLMULTI; 1161 sc->sc_mib_mgt.Wep_Required = 1162 (sc->sc_ic.ic_flags & IEEE80211_F_PRIVACY) ? AWI_WEP_ON : AWI_WEP_OFF; 1163 1164 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1165 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1166 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1167 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1168 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1169 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 1170 return error; 1171 } 1172 return 0; 1173 } 1174 1175 static void 1176 awi_rx_int(struct awi_softc *sc) 1177 { 1178 struct ieee80211com *ic = &sc->sc_ic; 1179 struct ifnet *ifp = &sc->sc_if; 1180 struct ieee80211_frame_min *wh; 1181 struct ieee80211_node *ni; 1182 u_int8_t state, rate, rssi; 1183 u_int16_t len; 1184 u_int32_t frame, next, rstamp, rxoff; 1185 struct mbuf *m; 1186 1187 rxoff = sc->sc_rxdoff; 1188 for (;;) { 1189 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1190 if (state & AWI_RXD_ST_OWN) 1191 break; 1192 if (!(state & AWI_RXD_ST_CONSUMED)) { 1193 if (sc->sc_substate != AWI_ST_NONE) 1194 goto rx_next; 1195 if (state & AWI_RXD_ST_RXERROR) { 1196 ifp->if_ierrors++; 1197 goto rx_next; 1198 } 1199 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1200 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1201 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1202 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1203 0x7fff; 1204 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1205 m = awi_devget(sc, frame, len); 1206 if (m == NULL) { 1207 ifp->if_ierrors++; 1208 goto rx_next; 1209 } 1210 if (state & AWI_RXD_ST_LF) { 1211 /* TODO check my bss */ 1212 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1213 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1214 sc->sc_rx_timer = 10; 1215 ifp->if_timer = 1; 1216 } 1217 if ((ifp->if_flags & IFF_DEBUG) && 1218 (ifp->if_flags & IFF_LINK2)) 1219 ieee80211_dump_pkt(m->m_data, m->m_len, 1220 rate / 5, rssi); 1221 if ((ifp->if_flags & IFF_LINK0) || 1222 sc->sc_adhoc_ap) 1223 m = awi_ether_modcap(sc, m); 1224 else 1225 m = m_pullup(m, sizeof(*wh)); 1226 if (m == NULL) { 1227 ifp->if_ierrors++; 1228 goto rx_next; 1229 } 1230 wh = mtod(m, struct ieee80211_frame_min *); 1231 ni = ieee80211_find_rxnode(ic, wh); 1232 ieee80211_input(ic, m, ni, rssi, rstamp); 1233 /* 1234 * The frame may have caused the 1235 * node to be marked for reclamation 1236 * (e.g. in response to a DEAUTH 1237 * message) so use release_node here 1238 * instead of unref_node. 1239 */ 1240 ieee80211_free_node(ni); 1241 } else 1242 sc->sc_rxpend = m; 1243 rx_next: 1244 state |= AWI_RXD_ST_CONSUMED; 1245 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1246 } 1247 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1248 if (next & AWI_RXD_NEXT_LAST) 1249 break; 1250 /* make sure the next pointer is correct */ 1251 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1252 break; 1253 state |= AWI_RXD_ST_OWN; 1254 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1255 rxoff = next & 0x7fff; 1256 } 1257 sc->sc_rxdoff = rxoff; 1258 } 1259 1260 static void 1261 awi_tx_int(struct awi_softc *sc) 1262 { 1263 struct ifnet *ifp = &sc->sc_if; 1264 u_int8_t flags; 1265 1266 while (sc->sc_txdone != sc->sc_txnext) { 1267 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1268 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1269 break; 1270 if (flags & AWI_TXD_ST_ERROR) 1271 ifp->if_oerrors++; 1272 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1273 0x7fff; 1274 } 1275 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1276 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1277 sc->sc_tx_timer = 0; 1278 ifp->if_flags &= ~IFF_OACTIVE; 1279 awi_start(ifp); 1280 } 1281 1282 static struct mbuf * 1283 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1284 { 1285 struct ifnet *ifp = &sc->sc_if; 1286 struct mbuf *m; 1287 struct mbuf *top, **mp; 1288 u_int tlen; 1289 1290 top = sc->sc_rxpend; 1291 mp = ⊤ 1292 if (top != NULL) { 1293 sc->sc_rxpend = NULL; 1294 top->m_pkthdr.len += len; 1295 m = top; 1296 while (*mp != NULL) { 1297 m = *mp; 1298 mp = &m->m_next; 1299 } 1300 if (m->m_flags & M_EXT) 1301 tlen = m->m_ext.ext_size; 1302 else if (m->m_flags & M_PKTHDR) 1303 tlen = MHLEN; 1304 else 1305 tlen = MLEN; 1306 tlen -= m->m_len; 1307 if (tlen > len) 1308 tlen = len; 1309 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1310 off += tlen; 1311 len -= tlen; 1312 } 1313 1314 while (len > 0) { 1315 if (top == NULL) { 1316 MGETHDR(m, M_DONTWAIT, MT_DATA); 1317 if (m == NULL) 1318 return NULL; 1319 m->m_pkthdr.rcvif = ifp; 1320 m->m_pkthdr.len = len; 1321 m->m_len = MHLEN; 1322 m->m_flags |= M_HASFCS; 1323 } else { 1324 MGET(m, M_DONTWAIT, MT_DATA); 1325 if (m == NULL) { 1326 m_freem(top); 1327 return NULL; 1328 } 1329 m->m_len = MLEN; 1330 } 1331 if (len >= MINCLSIZE) { 1332 MCLGET(m, M_DONTWAIT); 1333 if (m->m_flags & M_EXT) 1334 m->m_len = m->m_ext.ext_size; 1335 } 1336 if (top == NULL) { 1337 int hdrlen = sizeof(struct ieee80211_frame) + 1338 sizeof(struct llc); 1339 char *newdata = (char *) 1340 ALIGN(m->m_data + hdrlen) - hdrlen; 1341 m->m_len -= newdata - m->m_data; 1342 m->m_data = newdata; 1343 } 1344 if (m->m_len > len) 1345 m->m_len = len; 1346 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1347 off += m->m_len; 1348 len -= m->m_len; 1349 *mp = m; 1350 mp = &m->m_next; 1351 } 1352 return top; 1353 } 1354 1355 /* 1356 * Initialize hardware and start firmware to accept commands. 1357 * Called everytime after power on firmware. 1358 */ 1359 1360 static int 1361 awi_hw_init(struct awi_softc *sc) 1362 { 1363 u_int8_t status; 1364 u_int16_t intmask; 1365 int i, error; 1366 1367 sc->sc_enab_intr = 0; 1368 sc->sc_invalid = 0; /* XXX: really? */ 1369 awi_drvstate(sc, AWI_DRV_RESET); 1370 1371 /* reset firmware */ 1372 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1373 DELAY(100); 1374 awi_write_1(sc, AWI_SELFTEST, 0); 1375 awi_write_1(sc, AWI_CMD, 0); 1376 awi_write_1(sc, AWI_BANNER, 0); 1377 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1378 DELAY(100); 1379 1380 /* wait for selftest completion */ 1381 for (i = 0; ; i++) { 1382 if (sc->sc_invalid) 1383 return ENXIO; 1384 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1385 printf("%s: failed to complete selftest (timeout)\n", 1386 sc->sc_if.if_xname); 1387 return ENXIO; 1388 } 1389 status = awi_read_1(sc, AWI_SELFTEST); 1390 if ((status & 0xf0) == 0xf0) 1391 break; 1392 if (sc->sc_cansleep) { 1393 sc->sc_sleep_cnt++; 1394 (void)tsleep(sc, PWAIT, "awitst", 1); 1395 sc->sc_sleep_cnt--; 1396 } else { 1397 DELAY(1000*1000/hz); 1398 } 1399 } 1400 if (status != AWI_SELFTEST_PASSED) { 1401 printf("%s: failed to complete selftest (code %x)\n", 1402 sc->sc_if.if_xname, status); 1403 return ENXIO; 1404 } 1405 1406 /* check banner to confirm firmware write it */ 1407 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1408 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1409 printf("%s: failed to complete selftest (bad banner)\n", 1410 sc->sc_if.if_xname); 1411 for (i = 0; i < AWI_BANNER_LEN; i++) 1412 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1413 printf("\n"); 1414 return ENXIO; 1415 } 1416 1417 /* initializing interrupt */ 1418 sc->sc_enab_intr = 1; 1419 error = awi_intr_lock(sc); 1420 if (error) 1421 return error; 1422 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1423 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1424 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1425 awi_write_1(sc, AWI_INTMASK2, 0); 1426 awi_write_1(sc, AWI_INTSTAT, 0); 1427 awi_write_1(sc, AWI_INTSTAT2, 0); 1428 awi_intr_unlock(sc); 1429 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1430 1431 /* issuing interface test command */ 1432 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1433 if (error) { 1434 printf("%s: failed to complete selftest", 1435 sc->sc_if.if_xname); 1436 if (error == ENXIO) 1437 printf(" (no hardware)\n"); 1438 else if (error != EWOULDBLOCK) 1439 printf(" (error %d)\n", error); 1440 else if (sc->sc_cansleep) 1441 printf(" (lost interrupt)\n"); 1442 else 1443 printf(" (command timeout)\n"); 1444 return error; 1445 } 1446 1447 /* Initialize VBM */ 1448 awi_write_1(sc, AWI_VBM_OFFSET, 0); 1449 awi_write_1(sc, AWI_VBM_LENGTH, 1); 1450 awi_write_1(sc, AWI_VBM_BITMAP, 0); 1451 return 0; 1452 } 1453 1454 /* 1455 * Extract the factory default MIB value from firmware and assign the driver 1456 * default value. 1457 * Called once at attaching the interface. 1458 */ 1459 1460 static int 1461 awi_init_mibs(struct awi_softc *sc) 1462 { 1463 int chan, i, error; 1464 struct ieee80211com *ic = &sc->sc_ic; 1465 struct awi_chanset *cs; 1466 1467 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1468 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1469 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1470 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1471 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1472 printf("%s: failed to get default mib value (error %d)\n", 1473 sc->sc_if.if_xname, error); 1474 return error; 1475 } 1476 1477 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1478 for (cs = awi_chanset; ; cs++) { 1479 if (cs->cs_type == 0) { 1480 printf("%s: failed to set available channel\n", 1481 sc->sc_if.if_xname); 1482 return ENXIO; 1483 } 1484 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1485 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1486 break; 1487 } 1488 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1489 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1490 chan = IEEE80211_FH_CHAN(i % 3 + 1, i); 1491 setbit(sc->sc_ic.ic_chan_avail, chan); 1492 /* XXX for FHSS, does frequency matter? */ 1493 ic->ic_channels[chan].ic_freq = 0; 1494 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1495 /* 1496 * According to the IEEE 802.11 specification, 1497 * hop pattern parameter for FH phy should be 1498 * incremented by 3 for given hop chanset, i.e., 1499 * the chanset parameter is calculated for given 1500 * hop patter. However, BayStack 650 Access Points 1501 * apparently use fixed hop chanset parameter value 1502 * 1 for any hop pattern. So we also try this 1503 * combination of hop chanset and pattern. 1504 */ 1505 chan = IEEE80211_FH_CHAN(1, i); 1506 setbit(sc->sc_ic.ic_chan_avail, chan); 1507 ic->ic_channels[chan].ic_freq = 0; /* XXX */ 1508 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1509 } 1510 } else { 1511 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1512 setbit(sc->sc_ic.ic_chan_avail, i); 1513 ic->ic_channels[i].ic_freq = 1514 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 1515 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 1516 } 1517 } 1518 sc->sc_cur_chan = cs->cs_def; 1519 ic->ic_ibss_chan = &ic->ic_channels[cs->cs_def]; 1520 1521 sc->sc_mib_local.Fragmentation_Dis = 1; 1522 sc->sc_mib_local.Add_PLCP_Dis = 0; 1523 sc->sc_mib_local.MAC_Hdr_Prsv = 0; 1524 sc->sc_mib_local.Rx_Mgmt_Que_En = 0; 1525 sc->sc_mib_local.Re_Assembly_Dis = 1; 1526 sc->sc_mib_local.Strip_PLCP_Dis = 0; 1527 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1528 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1529 sc->sc_mib_local.Check_Seq_Cntl_Dis = 0; 1530 sc->sc_mib_local.Flush_CFP_Queue_On_CF_End = 0; 1531 sc->sc_mib_local.Network_Mode = 1; 1532 sc->sc_mib_local.PWD_Lvl = 0; 1533 sc->sc_mib_local.CFP_Mode = 0; 1534 1535 /* allocate buffers */ 1536 sc->sc_txbase = AWI_BUFFERS; 1537 sc->sc_txend = sc->sc_txbase + 1538 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1539 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1540 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1541 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1542 sc->sc_txend - sc->sc_txbase); 1543 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1544 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1545 AWI_BUFFERS_END - sc->sc_txend); 1546 sc->sc_mib_local.Acting_as_AP = 0; 1547 sc->sc_mib_local.Fill_CFP = 0; 1548 1549 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1550 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1551 1552 sc->sc_mib_mgt.aPower_Mgt_Mode = 0; 1553 sc->sc_mib_mgt.aDTIM_Period = 1; 1554 LE_WRITE_2(&sc->sc_mib_mgt.aATIM_Window, 0); 1555 return 0; 1556 } 1557 1558 static int 1559 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1560 { 1561 int error; 1562 u_int8_t size, *ptr; 1563 1564 switch (mib) { 1565 case AWI_MIB_LOCAL: 1566 ptr = (u_int8_t *)&sc->sc_mib_local; 1567 size = sizeof(sc->sc_mib_local); 1568 break; 1569 case AWI_MIB_ADDR: 1570 ptr = (u_int8_t *)&sc->sc_mib_addr; 1571 size = sizeof(sc->sc_mib_addr); 1572 break; 1573 case AWI_MIB_MAC: 1574 ptr = (u_int8_t *)&sc->sc_mib_mac; 1575 size = sizeof(sc->sc_mib_mac); 1576 break; 1577 case AWI_MIB_STAT: 1578 ptr = (u_int8_t *)&sc->sc_mib_stat; 1579 size = sizeof(sc->sc_mib_stat); 1580 break; 1581 case AWI_MIB_MGT: 1582 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1583 size = sizeof(sc->sc_mib_mgt); 1584 break; 1585 case AWI_MIB_PHY: 1586 ptr = (u_int8_t *)&sc->sc_mib_phy; 1587 size = sizeof(sc->sc_mib_phy); 1588 break; 1589 default: 1590 return EINVAL; 1591 } 1592 if (sc->sc_cmd_inprog) { 1593 if ((error = awi_cmd_wait(sc)) != 0) { 1594 if (error == EWOULDBLOCK) { 1595 DPRINTF(("awi_mib: cmd %d inprog", 1596 sc->sc_cmd_inprog)); 1597 } 1598 return error; 1599 } 1600 } 1601 sc->sc_cmd_inprog = cmd; 1602 if (cmd == AWI_CMD_SET_MIB) 1603 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1604 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1605 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1606 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1607 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1608 return error; 1609 if (cmd == AWI_CMD_GET_MIB) { 1610 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1611 #ifdef AWI_DEBUG 1612 if (awi_debug) { 1613 int i; 1614 1615 printf("awi_mib: #%d:", mib); 1616 for (i = 0; i < size; i++) 1617 printf(" %02x", ptr[i]); 1618 printf("\n"); 1619 } 1620 #endif 1621 } 1622 return 0; 1623 } 1624 1625 static int 1626 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1627 { 1628 u_int8_t status; 1629 int error = 0; 1630 #ifdef AWI_DEBUG 1631 static const char *cmdname[] = { 1632 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1633 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1634 }; 1635 #endif 1636 1637 #ifdef AWI_DEBUG 1638 if (awi_debug > 1) { 1639 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1640 printf("awi_cmd: #%d", cmd); 1641 else 1642 printf("awi_cmd: %s", cmdname[cmd]); 1643 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1644 } 1645 #endif 1646 sc->sc_cmd_inprog = cmd; 1647 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1648 awi_write_1(sc, AWI_CMD, cmd); 1649 if (wflag == AWI_NOWAIT) 1650 return EINPROGRESS; 1651 if ((error = awi_cmd_wait(sc)) != 0) 1652 return error; 1653 status = awi_read_1(sc, AWI_CMD_STATUS); 1654 awi_write_1(sc, AWI_CMD, 0); 1655 switch (status) { 1656 case AWI_STAT_OK: 1657 break; 1658 case AWI_STAT_BADPARM: 1659 return EINVAL; 1660 default: 1661 printf("%s: command %d failed %x\n", 1662 sc->sc_if.if_xname, cmd, status); 1663 return ENXIO; 1664 } 1665 return 0; 1666 } 1667 1668 static int 1669 awi_cmd_wait(struct awi_softc *sc) 1670 { 1671 int i, error = 0; 1672 1673 i = 0; 1674 while (sc->sc_cmd_inprog) { 1675 if (sc->sc_invalid) 1676 return ENXIO; 1677 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1678 printf("%s: failed to access hardware\n", 1679 sc->sc_if.if_xname); 1680 sc->sc_invalid = 1; 1681 return ENXIO; 1682 } 1683 if (sc->sc_cansleep) { 1684 sc->sc_sleep_cnt++; 1685 error = tsleep(sc, PWAIT, "awicmd", 1686 AWI_CMD_TIMEOUT*hz/1000); 1687 sc->sc_sleep_cnt--; 1688 } else { 1689 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1690 awi_cmd_done(sc); 1691 break; 1692 } 1693 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1694 error = EWOULDBLOCK; 1695 else 1696 DELAY(10); 1697 } 1698 if (error) 1699 break; 1700 } 1701 if (error) { 1702 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1703 sc->sc_cmd_inprog, error)); 1704 } 1705 return error; 1706 } 1707 1708 static void 1709 awi_cmd_done(struct awi_softc *sc) 1710 { 1711 u_int8_t cmd, status; 1712 1713 status = awi_read_1(sc, AWI_CMD_STATUS); 1714 if (status == AWI_STAT_IDLE) 1715 return; /* stray interrupt */ 1716 1717 cmd = sc->sc_cmd_inprog; 1718 sc->sc_cmd_inprog = 0; 1719 wakeup(sc); 1720 awi_write_1(sc, AWI_CMD, 0); 1721 1722 if (status != AWI_STAT_OK) { 1723 printf("%s: command %d failed %x\n", 1724 sc->sc_if.if_xname, cmd, status); 1725 sc->sc_substate = AWI_ST_NONE; 1726 return; 1727 } 1728 if (sc->sc_substate != AWI_ST_NONE) 1729 (void)ieee80211_new_state(&sc->sc_ic, sc->sc_nstate, -1); 1730 } 1731 1732 static int 1733 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1734 { 1735 u_int32_t txd, ntxd, frame; 1736 1737 txd = sc->sc_txnext; 1738 frame = txd + AWI_TXD_SIZE; 1739 if (frame + len > sc->sc_txend) 1740 frame = sc->sc_txbase; 1741 ntxd = frame + len; 1742 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1743 ntxd = sc->sc_txbase; 1744 *framep = frame; 1745 *ntxdp = ntxd; 1746 /* 1747 * Determine if there are any room in ring buffer. 1748 * --- send wait, === new data, +++ conflict (ENOBUFS) 1749 * base........................end 1750 * done----txd=====ntxd OK 1751 * --txd=====done++++ntxd-- full 1752 * --txd=====ntxd done-- OK 1753 * ==ntxd done----txd=== OK 1754 * ==done++++ntxd----txd=== full 1755 * ++ntxd txd=====done++ full 1756 */ 1757 if (txd < ntxd) { 1758 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1759 return ENOBUFS; 1760 } else { 1761 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1762 return ENOBUFS; 1763 } 1764 return 0; 1765 } 1766 1767 static int 1768 awi_lock(struct awi_softc *sc) 1769 { 1770 int error = 0; 1771 1772 #ifdef __NetBSD__ 1773 if (curlwp == NULL) 1774 #else 1775 if (curproc == NULL) 1776 #endif 1777 { 1778 /* 1779 * XXX 1780 * Though driver ioctl should be called with context, 1781 * KAME ipv6 stack calls ioctl in interrupt for now. 1782 * We simply abort the request if there are other 1783 * ioctl requests in progress. 1784 */ 1785 if (sc->sc_busy) { 1786 if (sc->sc_invalid) 1787 return ENXIO; 1788 return EWOULDBLOCK; 1789 } 1790 sc->sc_busy = 1; 1791 sc->sc_cansleep = 0; 1792 return 0; 1793 } 1794 while (sc->sc_busy) { 1795 if (sc->sc_invalid) 1796 return ENXIO; 1797 sc->sc_sleep_cnt++; 1798 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1799 sc->sc_sleep_cnt--; 1800 if (error) 1801 return error; 1802 } 1803 sc->sc_busy = 1; 1804 sc->sc_cansleep = 1; 1805 return 0; 1806 } 1807 1808 static void 1809 awi_unlock(struct awi_softc *sc) 1810 { 1811 sc->sc_busy = 0; 1812 sc->sc_cansleep = 0; 1813 if (sc->sc_sleep_cnt) 1814 wakeup(sc); 1815 } 1816 1817 static int 1818 awi_intr_lock(struct awi_softc *sc) 1819 { 1820 u_int8_t status; 1821 int i, retry; 1822 1823 status = 1; 1824 for (retry = 0; retry < 10; retry++) { 1825 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1826 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1827 break; 1828 DELAY(5); 1829 } 1830 if (status != 0) 1831 break; 1832 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1833 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1834 break; 1835 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1836 } 1837 if (status != 0) { 1838 printf("%s: failed to lock interrupt\n", 1839 sc->sc_if.if_xname); 1840 return ENXIO; 1841 } 1842 return 0; 1843 } 1844 1845 static void 1846 awi_intr_unlock(struct awi_softc *sc) 1847 { 1848 1849 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1850 } 1851 1852 static int 1853 awi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1854 { 1855 struct ifnet *ifp = ic->ic_ifp; 1856 struct awi_softc *sc = ifp->if_softc; 1857 struct ieee80211_node *ni; 1858 int error; 1859 u_int8_t newmode; 1860 enum ieee80211_state ostate; 1861 #ifdef AWI_DEBUG 1862 static const char *stname[] = 1863 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1864 static const char *substname[] = 1865 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1866 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1867 #endif /* AWI_DEBUG */ 1868 1869 ostate = ic->ic_state; 1870 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1871 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1872 1873 /* set LED */ 1874 switch (nstate) { 1875 case IEEE80211_S_INIT: 1876 awi_drvstate(sc, AWI_DRV_RESET); 1877 break; 1878 case IEEE80211_S_SCAN: 1879 if (ic->ic_opmode == IEEE80211_M_IBSS || 1880 ic->ic_opmode == IEEE80211_M_AHDEMO) 1881 awi_drvstate(sc, AWI_DRV_ADHSC); 1882 else 1883 awi_drvstate(sc, AWI_DRV_INFSY); 1884 break; 1885 case IEEE80211_S_AUTH: 1886 awi_drvstate(sc, AWI_DRV_INFSY); 1887 break; 1888 case IEEE80211_S_ASSOC: 1889 awi_drvstate(sc, AWI_DRV_INFAUTH); 1890 break; 1891 case IEEE80211_S_RUN: 1892 if (ic->ic_opmode == IEEE80211_M_IBSS || 1893 ic->ic_opmode == IEEE80211_M_AHDEMO) 1894 awi_drvstate(sc, AWI_DRV_ADHSY); 1895 else 1896 awi_drvstate(sc, AWI_DRV_INFASSOC); 1897 break; 1898 } 1899 1900 if (nstate == IEEE80211_S_INIT) { 1901 sc->sc_substate = AWI_ST_NONE; 1902 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1903 return (*sc->sc_newstate)(ic, nstate, arg); 1904 } 1905 1906 /* state transition */ 1907 if (nstate == IEEE80211_S_SCAN) { 1908 /* SCAN substate */ 1909 if (sc->sc_substate == AWI_ST_NONE) { 1910 sc->sc_nstate = nstate; /* next state in transition */ 1911 sc->sc_substate = AWI_ST_SCAN_INIT; 1912 } 1913 switch (sc->sc_substate) { 1914 case AWI_ST_SCAN_INIT: 1915 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1916 switch (ostate) { 1917 case IEEE80211_S_RUN: 1918 /* beacon miss */ 1919 if (ifp->if_flags & IFF_DEBUG) 1920 printf("%s: no recent beacons from %s;" 1921 " rescanning\n", 1922 ifp->if_xname, 1923 ether_sprintf(ic->ic_bss->ni_bssid)); 1924 /* FALLTHRU */ 1925 case IEEE80211_S_AUTH: 1926 case IEEE80211_S_ASSOC: 1927 case IEEE80211_S_INIT: 1928 ieee80211_begin_scan(ic, 1); 1929 /* FALLTHRU */ 1930 case IEEE80211_S_SCAN: 1931 /* scan next */ 1932 break; 1933 } 1934 if (ic->ic_flags & IEEE80211_F_ASCAN) 1935 newmode = AWI_SCAN_ACTIVE; 1936 else 1937 newmode = AWI_SCAN_PASSIVE; 1938 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1939 sc->sc_mib_mgt.aScan_Mode = newmode; 1940 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1941 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1942 break; 1943 } 1944 /* FALLTHRU */ 1945 case AWI_ST_SCAN_SETMIB: 1946 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1947 if (sc->sc_cmd_inprog) { 1948 if ((error = awi_cmd_wait(sc)) != 0) 1949 break; 1950 } 1951 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1952 ni = ic->ic_bss; 1953 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1954 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1955 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1956 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1957 awi_write_1(sc, AWI_CA_SCAN_SET, 1958 IEEE80211_FH_CHANSET( 1959 ieee80211_chan2ieee(ic, ni->ni_chan))); 1960 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1961 IEEE80211_FH_CHANPAT( 1962 ieee80211_chan2ieee(ic, ni->ni_chan))); 1963 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1964 } else { 1965 awi_write_1(sc, AWI_CA_SCAN_SET, 1966 ieee80211_chan2ieee(ic, ni->ni_chan)); 1967 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1968 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1969 } 1970 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1971 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 1972 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1973 != 0) 1974 break; 1975 /* FALLTHRU */ 1976 case AWI_ST_SCAN_SCCMD: 1977 ic->ic_state = nstate; 1978 sc->sc_substate = AWI_ST_NONE; 1979 error = EINPROGRESS; 1980 break; 1981 default: 1982 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1983 stname[nstate], substname[sc->sc_substate])); 1984 sc->sc_substate = AWI_ST_NONE; 1985 error = EIO; 1986 break; 1987 } 1988 goto out; 1989 } 1990 1991 if (ostate == IEEE80211_S_SCAN) { 1992 /* set SSID and channel */ 1993 /* substate */ 1994 if (sc->sc_substate == AWI_ST_NONE) { 1995 sc->sc_nstate = nstate; /* next state in transition */ 1996 sc->sc_substate = AWI_ST_SUB_INIT; 1997 } 1998 ni = ic->ic_bss; 1999 switch (sc->sc_substate) { 2000 case AWI_ST_SUB_INIT: 2001 sc->sc_substate = AWI_ST_SUB_SETSS; 2002 IEEE80211_ADDR_COPY(&sc->sc_mib_mgt.aCurrent_BSS_ID, 2003 ni->ni_bssid); 2004 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 2005 AWI_ESS_ID_SIZE); 2006 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 2007 IEEE80211_ELEMID_SSID; 2008 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = ni->ni_esslen; 2009 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 2010 ni->ni_essid, ni->ni_esslen); 2011 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 2012 ni->ni_intval); 2013 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 2014 AWI_NOWAIT)) != 0) 2015 break; 2016 /* FALLTHRU */ 2017 case AWI_ST_SUB_SETSS: 2018 sc->sc_substate = AWI_ST_SUB_SYNC; 2019 if (sc->sc_cmd_inprog) { 2020 if ((error = awi_cmd_wait(sc)) != 0) 2021 break; 2022 } 2023 sc->sc_cmd_inprog = AWI_CMD_SYNC; 2024 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 2025 awi_write_1(sc, AWI_CA_SYNC_SET, 2026 IEEE80211_FH_CHANSET( 2027 ieee80211_chan2ieee(ic, ni->ni_chan))); 2028 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 2029 IEEE80211_FH_CHANPAT( 2030 ieee80211_chan2ieee(ic, ni->ni_chan))); 2031 awi_write_1(sc, AWI_CA_SYNC_IDX, 2032 ni->ni_fhindex); 2033 awi_write_2(sc, AWI_CA_SYNC_DWELL, 2034 ni->ni_fhdwell); 2035 } else { 2036 awi_write_1(sc, AWI_CA_SYNC_SET, 2037 ieee80211_chan2ieee(ic, ni->ni_chan)); 2038 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 2039 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 2040 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 2041 } 2042 if (ic->ic_flags & IEEE80211_F_SIBSS) { 2043 memset(&ni->ni_tstamp, 0, 2044 sizeof(ni->ni_tstamp)); 2045 ni->ni_rstamp = 0; 2046 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 2047 } else 2048 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 2049 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 2050 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 2051 ni->ni_tstamp.data, sizeof(ni->ni_tstamp.data)); 2052 awi_write_4(sc, AWI_CA_SYNC_REFTIME, ni->ni_rstamp); 2053 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2054 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 2055 != 0) 2056 break; 2057 /* FALLTHRU */ 2058 case AWI_ST_SUB_SYNC: 2059 sc->sc_substate = AWI_ST_NONE; 2060 if (ic->ic_flags & IEEE80211_F_SIBSS) { 2061 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 2062 AWI_MIB_MGT, AWI_WAIT)) != 0) 2063 break; 2064 IEEE80211_ADDR_COPY(ni->ni_bssid, 2065 &sc->sc_mib_mgt.aCurrent_BSS_ID); 2066 } else { 2067 if (nstate == IEEE80211_S_RUN) { 2068 sc->sc_rx_timer = 10; 2069 ifp->if_timer = 1; 2070 } 2071 } 2072 error = 0; 2073 break; 2074 default: 2075 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 2076 stname[nstate], substname[sc->sc_substate])); 2077 sc->sc_substate = AWI_ST_NONE; 2078 error = EIO; 2079 break; 2080 } 2081 goto out; 2082 } 2083 2084 sc->sc_substate = AWI_ST_NONE; 2085 2086 return (*sc->sc_newstate)(ic, nstate, arg); 2087 out: 2088 if (error != 0) { 2089 if (error == EINPROGRESS) 2090 error = 0; 2091 return error; 2092 } 2093 return (*sc->sc_newstate)(ic, nstate, arg); 2094 } 2095 2096 static void 2097 awi_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0, 2098 struct ieee80211_node *ni, 2099 int subtype, int rssi, u_int32_t rstamp) 2100 { 2101 struct awi_softc *sc = ic->ic_ifp->if_softc; 2102 2103 /* probe request is handled by hardware */ 2104 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2105 return; 2106 (*sc->sc_recv_mgmt)(ic, m0, ni, subtype, rssi, rstamp); 2107 } 2108 2109 static int 2110 awi_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, 2111 int type, int arg) 2112 { 2113 struct awi_softc *sc = ic->ic_ifp->if_softc; 2114 2115 /* probe request is handled by hardware */ 2116 if (type == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2117 return 0; 2118 return (*sc->sc_send_mgmt)(ic, ni, type, arg); 2119 } 2120 2121 static struct mbuf * 2122 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 2123 { 2124 struct ieee80211com *ic = &sc->sc_ic; 2125 struct ieee80211_node *ni = ic->ic_bss; 2126 struct ether_header *eh; 2127 struct ieee80211_frame *wh; 2128 2129 if (m->m_len < sizeof(struct ether_header)) { 2130 m = m_pullup(m, sizeof(struct ether_header)); 2131 if (m == NULL) 2132 return NULL; 2133 } 2134 eh = mtod(m, struct ether_header *); 2135 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 2136 if (m == NULL) 2137 return NULL; 2138 wh = mtod(m, struct ieee80211_frame *); 2139 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 2140 *(u_int16_t *)wh->i_dur = 0; 2141 *(u_int16_t *)wh->i_seq = 2142 htole16(ni->ni_txseqs[0] << IEEE80211_SEQ_SEQ_SHIFT); 2143 ni->ni_txseqs[0]++; 2144 if (ic->ic_opmode == IEEE80211_M_IBSS || 2145 ic->ic_opmode == IEEE80211_M_AHDEMO) { 2146 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2147 if (sc->sc_adhoc_ap) 2148 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_macaddr); 2149 else 2150 IEEE80211_ADDR_COPY(wh->i_addr1, eh->ether_dhost); 2151 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2152 IEEE80211_ADDR_COPY(wh->i_addr3, ni->ni_bssid); 2153 } else { 2154 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 2155 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_bssid); 2156 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2157 IEEE80211_ADDR_COPY(wh->i_addr3, eh->ether_dhost); 2158 } 2159 return m; 2160 } 2161 2162 static struct mbuf * 2163 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 2164 { 2165 struct ieee80211com *ic = &sc->sc_ic; 2166 struct ether_header eh; 2167 struct ieee80211_frame wh; 2168 struct llc *llc; 2169 2170 if (m->m_len < sizeof(wh) + sizeof(eh)) { 2171 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 2172 if (m == NULL) 2173 return NULL; 2174 } 2175 memcpy(&wh, mtod(m, void *), sizeof(wh)); 2176 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 2177 return m; 2178 memcpy(&eh, mtod(m, char *) + sizeof(wh), sizeof(eh)); 2179 m_adj(m, sizeof(eh) - sizeof(*llc)); 2180 if (ic->ic_opmode == IEEE80211_M_IBSS || 2181 ic->ic_opmode == IEEE80211_M_AHDEMO) 2182 IEEE80211_ADDR_COPY(wh.i_addr2, eh.ether_shost); 2183 memcpy(mtod(m, void *), &wh, sizeof(wh)); 2184 llc = (struct llc *)(mtod(m, char *) + sizeof(wh)); 2185 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 2186 llc->llc_control = LLC_UI; 2187 llc->llc_snap.org_code[0] = 0; 2188 llc->llc_snap.org_code[1] = 0; 2189 llc->llc_snap.org_code[2] = 0; 2190 llc->llc_snap.ether_type = eh.ether_type; 2191 return m; 2192 } 2193
Indexes created Sat Oct 18 17:09:52 GMT 2025