awi.c revision 1.38
1 /* $NetBSD: awi.c,v 1.38 2001/09/18 23:19:08 onoe Exp $ */ 2 3 /*- 4 * Copyright (c) 1999,2000,2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Bill Sommerfeld 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 /* 39 * Driver for AMD 802.11 firmware. 40 * Uses am79c930 chip driver to talk to firmware running on the am79c930. 41 * 42 * More-or-less a generic ethernet-like if driver, with 802.11 gorp added. 43 */ 44 45 /* 46 * todo: 47 * - flush tx queue on resynch. 48 * - clear oactive on "down". 49 * - rewrite copy-into-mbuf code 50 * - mgmt state machine gets stuck retransmitting assoc requests. 51 * - multicast filter. 52 * - fix device reset so it's more likely to work 53 * - show status goo through ifmedia. 54 * 55 * more todo: 56 * - deal with more 802.11 frames. 57 * - send reassoc request 58 * - deal with reassoc response 59 * - send/deal with disassociation 60 * - deal with "full" access points (no room for me). 61 * - power save mode 62 * 63 * later: 64 * - SSID preferences 65 * - need ioctls for poking at the MIBs 66 * - implement ad-hoc mode (including bss creation). 67 * - decide when to do "ad hoc" vs. infrastructure mode (IFF_LINK flags?) 68 * (focus on inf. mode since that will be needed for ietf) 69 * - deal with DH vs. FH versions of the card 70 * - deal with faster cards (2mb/s) 71 * - ?WEP goo (mmm, rc4) (it looks not particularly useful). 72 * - ifmedia revision. 73 * - common 802.11 mibish things. 74 * - common 802.11 media layer. 75 */ 76 77 /* 78 * Driver for AMD 802.11 PCnetMobile firmware. 79 * Uses am79c930 chip driver to talk to firmware running on the am79c930. 80 * 81 * The initial version of the driver was written by 82 * Bill Sommerfeld <sommerfeld (at) netbsd.org>. 83 * Then the driver module completely rewritten to support cards with DS phy 84 * and to support adhoc mode by Atsushi Onoe <onoe (at) netbsd.org> 85 */ 86 87 #include "opt_inet.h" 88 #include "bpfilter.h" 89 90 #include <sys/param.h> 91 #include <sys/systm.h> 92 #include <sys/kernel.h> 93 #include <sys/mbuf.h> 94 #include <sys/malloc.h> 95 #include <sys/proc.h> 96 #include <sys/socket.h> 97 #include <sys/sockio.h> 98 #include <sys/errno.h> 99 #include <sys/device.h> 100 101 #include <net/if.h> 102 #include <net/if_dl.h> 103 #include <net/if_ether.h> 104 #include <net/if_media.h> 105 #include <net/if_llc.h> 106 #include <net/if_ieee80211.h> 107 108 #ifdef INET 109 #include <netinet/in.h> 110 #include <netinet/in_systm.h> 111 #ifdef __NetBSD__ 112 #include <netinet/if_inarp.h> 113 #else 114 #include <netinet/if_ether.h> 115 #endif 116 #endif 117 118 #if NBPFILTER > 0 119 #include <net/bpf.h> 120 #endif 121 122 #include <machine/cpu.h> 123 #include <machine/bus.h> 124 #include <machine/intr.h> 125 126 #include <dev/ic/am79c930reg.h> 127 #include <dev/ic/am79c930var.h> 128 #include <dev/ic/awireg.h> 129 #include <dev/ic/awivar.h> 130 131 static int awi_init(struct ifnet *); 132 static void awi_stop(struct ifnet *, int); 133 static void awi_start(struct ifnet *); 134 static void awi_watchdog(struct ifnet *); 135 static int awi_ioctl(struct ifnet *, u_long, caddr_t); 136 static int awi_media_change(struct ifnet *); 137 static void awi_media_status(struct ifnet *, struct ifmediareq *); 138 static int awi_mode_init(struct awi_softc *); 139 static int awi_media_rate2opt(struct awi_softc *, int); 140 static int awi_media_opt2rate(struct awi_softc *, int); 141 static void awi_rx_int(struct awi_softc *); 142 static void awi_tx_int(struct awi_softc *); 143 static struct mbuf *awi_devget(struct awi_softc *, u_int32_t, u_int16_t); 144 static int awi_hw_init(struct awi_softc *); 145 static int awi_init_mibs(struct awi_softc *); 146 static int awi_chan_check(void *, u_char *); 147 static int awi_mib(struct awi_softc *, u_int8_t, u_int8_t, int); 148 static int awi_cmd(struct awi_softc *, u_int8_t, int); 149 static int awi_cmd_wait(struct awi_softc *); 150 static void awi_cmd_done(struct awi_softc *); 151 static int awi_next_txd(struct awi_softc *, int, u_int32_t *, u_int32_t *); 152 static int awi_lock(struct awi_softc *); 153 static void awi_unlock(struct awi_softc *); 154 static int awi_intr_lock(struct awi_softc *); 155 static void awi_intr_unlock(struct awi_softc *); 156 static int awi_newstate(void *, enum ieee80211_state); 157 static struct mbuf *awi_ether_encap(struct awi_softc *, struct mbuf *); 158 static struct mbuf *awi_ether_modcap(struct awi_softc *, struct mbuf *); 159 160 /* unalligned little endian access */ 161 #define LE_READ_2(p) \ 162 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)) 163 #define LE_READ_4(p) \ 164 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \ 165 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)) 166 #define LE_WRITE_2(p, v) \ 167 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 168 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff))) 169 #define LE_WRITE_4(p, v) \ 170 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 171 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff)), \ 172 (((u_int8_t *)(p))[2] = (((u_int32_t)(v) >> 16) & 0xff)), \ 173 (((u_int8_t *)(p))[3] = (((u_int32_t)(v) >> 24) & 0xff))) 174 175 struct awi_chanset awi_chanset[] = { 176 /* PHY type domain min max def */ 177 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_JP, 6, 17, 6 }, 178 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_ES, 0, 26, 1 }, 179 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_FR, 0, 32, 1 }, 180 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_US, 0, 77, 1 }, 181 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_CA, 0, 77, 1 }, 182 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_EU, 0, 77, 1 }, 183 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_JP, 14, 14, 14 }, 184 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_ES, 10, 11, 10 }, 185 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_FR, 10, 13, 10 }, 186 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_US, 1, 11, 3 }, 187 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_CA, 1, 11, 3 }, 188 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_EU, 1, 13, 3 }, 189 { 0, 0 } 190 }; 191 192 #ifdef AWI_DEBUG 193 int awi_debug; 194 195 #define DPRINTF(X) if (awi_debug) printf X 196 #define DPRINTF2(X) if (awi_debug > 1) printf X 197 #else 198 #define DPRINTF(X) 199 #define DPRINTF2(X) 200 #endif 201 202 int 203 awi_attach(struct awi_softc *sc) 204 { 205 struct ieee80211com *ic = &sc->sc_ic; 206 struct ifnet *ifp = &ic->ic_if; 207 int s, i, error, nrate; 208 int mword; 209 struct ifmediareq imr; 210 211 s = splnet(); 212 sc->sc_busy = 1; 213 ic->ic_state = IEEE80211_S_INIT; 214 sc->sc_substate = AWI_ST_NONE; 215 if ((error = awi_hw_init(sc)) != 0) { 216 sc->sc_invalid = 1; 217 splx(s); 218 return error; 219 } 220 error = awi_init_mibs(sc); 221 if (error != 0) { 222 sc->sc_invalid = 1; 223 splx(s); 224 return error; 225 } 226 ifp->if_softc = sc; 227 ifp->if_flags = 228 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST | IFF_NOTRAILERS; 229 ifp->if_ioctl = awi_ioctl; 230 ifp->if_start = awi_start; 231 ifp->if_init = awi_init; 232 ifp->if_stop = awi_stop; 233 ifp->if_watchdog = awi_watchdog; 234 IFQ_SET_READY(&ifp->if_snd); 235 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 236 237 ic->ic_flags = IEEE80211_F_HASWEP | IEEE80211_F_HASIBSS; 238 ic->ic_newstate = awi_newstate; 239 ic->ic_chancheck = awi_chan_check; 240 nrate = sc->sc_mib_phy.aSuprt_Data_Rates[1]; 241 memcpy(ic->ic_sup_rates, sc->sc_mib_phy.aSuprt_Data_Rates + 2, nrate); 242 memcpy(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address, IEEE80211_ADDR_LEN); 243 244 printf("%s: IEEE802.11 %s %dMbps (firmware %s)\n", 245 sc->sc_dev.dv_xname, 246 sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH ? "FH" : "DS", 247 (ic->ic_sup_rates[nrate - 1] & IEEE80211_RATE_VAL) / 2, 248 sc->sc_banner); 249 printf("%s: 802.11 address: %s\n", sc->sc_dev.dv_xname, 250 ether_sprintf(ic->ic_myaddr)); 251 252 if_attach(ifp); 253 ieee80211_ifattach(ifp); 254 255 ifmedia_init(&sc->sc_media, 0, awi_media_change, awi_media_status); 256 mword = IFM_MAKEWORD(IFM_IEEE80211, IFM_AUTO, 0, 0); 257 ifmedia_add(&sc->sc_media, mword, 0, NULL); 258 ifmedia_add(&sc->sc_media, mword | IFM_FLAG0, 0, NULL); 259 mword |= IFM_IEEE80211_ADHOC; 260 ifmedia_add(&sc->sc_media, mword, 0, NULL); 261 ifmedia_add(&sc->sc_media, mword | IFM_FLAG0, 0, NULL); 262 for (i = 0; i < nrate; i++) { 263 mword = awi_media_rate2opt(sc, ic->ic_sup_rates[i]); 264 if (mword == 0) 265 continue; 266 mword |= IFM_IEEE80211; 267 ifmedia_add(&sc->sc_media, mword, 0, NULL); 268 ifmedia_add(&sc->sc_media, mword | IFM_FLAG0, 0, NULL); 269 mword |= IFM_IEEE80211_ADHOC; 270 ifmedia_add(&sc->sc_media, mword, 0, NULL); 271 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 272 ifmedia_add(&sc->sc_media, mword | IFM_FLAG0, 0, NULL); 273 } 274 awi_media_status(ifp, &imr); 275 ifmedia_set(&sc->sc_media, imr.ifm_active); 276 277 if ((sc->sc_sdhook = shutdownhook_establish(awi_shutdown, sc)) == NULL) 278 printf("%s: WARNING: unable to establish shutdown hook\n", 279 sc->sc_dev.dv_xname); 280 if ((sc->sc_powerhook = powerhook_establish(awi_power, sc)) == NULL) 281 printf("%s: WARNING: unable to establish power hook\n", 282 sc->sc_dev.dv_xname); 283 sc->sc_attached = 1; 284 splx(s); 285 286 /* ready to accept ioctl */ 287 awi_unlock(sc); 288 289 return 0; 290 } 291 292 int 293 awi_detach(struct awi_softc *sc) 294 { 295 struct ifnet *ifp = &sc->sc_ic.ic_if; 296 int s; 297 298 if (!sc->sc_attached) 299 return 0; 300 301 s = splnet(); 302 sc->sc_invalid = 1; 303 awi_stop(ifp, 1); 304 while (sc->sc_sleep_cnt > 0) { 305 wakeup(sc); 306 (void)tsleep(sc, PWAIT, "awidet", 1); 307 } 308 ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY); 309 ieee80211_ifdetach(ifp); 310 if_detach(ifp); 311 shutdownhook_disestablish(sc->sc_sdhook); 312 powerhook_disestablish(sc->sc_powerhook); 313 splx(s); 314 return 0; 315 } 316 317 int 318 awi_activate(struct device *self, enum devact act) 319 { 320 struct awi_softc *sc = (struct awi_softc *)self; 321 struct ifnet *ifp = &sc->sc_ic.ic_if; 322 int s, error = 0; 323 324 s = splnet(); 325 switch (act) { 326 case DVACT_ACTIVATE: 327 error = EOPNOTSUPP; 328 break; 329 case DVACT_DEACTIVATE: 330 sc->sc_invalid = 1; 331 if_deactivate(ifp); 332 break; 333 } 334 splx(s); 335 return error; 336 } 337 338 void 339 awi_power(int why, void *arg) 340 { 341 struct awi_softc *sc = arg; 342 struct ifnet *ifp = &sc->sc_ic.ic_if; 343 int s; 344 int ocansleep; 345 346 DPRINTF(("awi_power: %d\n", why)); 347 s = splnet(); 348 ocansleep = sc->sc_cansleep; 349 sc->sc_cansleep = 0; 350 switch (why) { 351 case PWR_SUSPEND: 352 case PWR_STANDBY: 353 awi_stop(ifp, 1); 354 break; 355 case PWR_RESUME: 356 if (ifp->if_flags & IFF_UP) { 357 awi_init(ifp); 358 (void)awi_intr(sc); /* make sure */ 359 } 360 break; 361 case PWR_SOFTSUSPEND: 362 case PWR_SOFTSTANDBY: 363 case PWR_SOFTRESUME: 364 break; 365 } 366 sc->sc_cansleep = ocansleep; 367 splx(s); 368 } 369 370 void 371 awi_shutdown(void *arg) 372 { 373 struct awi_softc *sc = arg; 374 struct ifnet *ifp = &sc->sc_ic.ic_if; 375 376 if (sc->sc_attached) 377 awi_stop(ifp, 1); 378 } 379 380 int 381 awi_intr(void *arg) 382 { 383 struct awi_softc *sc = arg; 384 u_int16_t status; 385 int error, handled = 0, ocansleep; 386 #ifdef AWI_DEBUG 387 static const char *intname[] = { 388 "CMD", "RX", "TX", "SCAN_CMPLT", 389 "CFP_START", "DTIM", "CFP_ENDING", "GROGGY", 390 "TXDATA", "TXBCAST", "TXPS", "TXCF", 391 "TXMGT", "#13", "RXDATA", "RXMGT" 392 }; 393 #endif 394 395 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) 396 return 0; 397 398 am79c930_gcr_setbits(&sc->sc_chip, 399 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 400 awi_write_1(sc, AWI_DIS_PWRDN, 1); 401 ocansleep = sc->sc_cansleep; 402 sc->sc_cansleep = 0; 403 404 for (;;) { 405 if ((error = awi_intr_lock(sc)) != 0) 406 break; 407 status = awi_read_1(sc, AWI_INTSTAT); 408 awi_write_1(sc, AWI_INTSTAT, 0); 409 awi_write_1(sc, AWI_INTSTAT, 0); 410 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 411 awi_write_1(sc, AWI_INTSTAT2, 0); 412 DELAY(10); 413 awi_intr_unlock(sc); 414 if (!sc->sc_cmd_inprog) 415 status &= ~AWI_INT_CMD; /* make sure */ 416 if (status == 0) 417 break; 418 #ifdef AWI_DEBUG 419 if (awi_debug > 1) { 420 int i; 421 422 printf("awi_intr: status 0x%04x", status); 423 for (i = 0; i < sizeof(intname)/sizeof(intname[0]); 424 i++) { 425 if (status & (1 << i)) 426 printf(" %s", intname[i]); 427 } 428 printf("\n"); 429 } 430 #endif 431 handled = 1; 432 if (status & AWI_INT_RX) 433 awi_rx_int(sc); 434 if (status & AWI_INT_TX) 435 awi_tx_int(sc); 436 if (status & AWI_INT_CMD) 437 awi_cmd_done(sc); 438 if (status & AWI_INT_SCAN_CMPLT) { 439 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN) 440 ieee80211_next_scan(&sc->sc_ic.ic_if); 441 } 442 } 443 sc->sc_cansleep = ocansleep; 444 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 445 awi_write_1(sc, AWI_DIS_PWRDN, 0); 446 return handled; 447 } 448 449 static int 450 awi_init(struct ifnet *ifp) 451 { 452 struct awi_softc *sc = ifp->if_softc; 453 struct ieee80211com *ic = &sc->sc_ic; 454 struct ieee80211_bss *bs = &ic->ic_bss; 455 int i, error; 456 457 DPRINTF(("awi_init: enabled=%d\n", sc->sc_enabled)); 458 if (sc->sc_enabled) { 459 awi_stop(ifp, 0); 460 } else { 461 if (sc->sc_enable) 462 (*sc->sc_enable)(sc); 463 sc->sc_enabled = 1; 464 if ((error = awi_hw_init(sc)) != 0) { 465 awi_stop(ifp, 1); 466 return error; 467 } 468 } 469 ic->ic_state = IEEE80211_S_INIT; 470 471 sc->sc_mib_local.Network_Mode = 472 (ic->ic_flags & IEEE80211_F_ADHOC) ? 0 : 1; 473 474 if ((error = awi_mode_init(sc)) != 0) { 475 DPRINTF(("awi_init: awi_mode_init failed %d\n", error)); 476 awi_stop(ifp, 1); 477 return error; 478 } 479 480 /* start transmitter */ 481 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 482 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 483 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 484 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 485 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 486 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 487 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 488 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 489 awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); 490 awi_write_4(sc, AWI_CA_TX_MGT, 0); 491 awi_write_4(sc, AWI_CA_TX_BCAST, 0); 492 awi_write_4(sc, AWI_CA_TX_PS, 0); 493 awi_write_4(sc, AWI_CA_TX_CF, 0); 494 if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { 495 DPRINTF(("awi_init: failed to start transmitter: %d\n", error)); 496 awi_stop(ifp, 1); 497 return error; 498 } 499 500 /* start receiver */ 501 if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { 502 DPRINTF(("awi_init: failed to start receiver: %d\n", error)); 503 awi_stop(ifp, 1); 504 return error; 505 } 506 sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); 507 sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); 508 509 ifp->if_flags |= IFF_RUNNING; 510 ifp->if_flags &= ~IFF_OACTIVE; 511 512 if ((sc->sc_ic.ic_flags & IEEE80211_F_ADHOC) && sc->sc_no_bssid) { 513 bs->bs_chan = ic->ic_ibss_chan; 514 bs->bs_intval = ic->ic_lintval; 515 bs->bs_nrate = 0; 516 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 517 if (ic->ic_sup_rates[i]) 518 bs->bs_rates[bs->bs_nrate++] = 519 ic->ic_sup_rates[i]; 520 } 521 memcpy(bs->bs_macaddr, ic->ic_myaddr, IEEE80211_ADDR_LEN); 522 memset(bs->bs_bssid, 0, IEEE80211_ADDR_LEN); 523 bs->bs_esslen = 0; 524 ic->ic_flags |= IEEE80211_F_SIBSS; 525 ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ 526 sc->sc_substate = AWI_ST_NONE; 527 ieee80211_new_state(&ic->ic_if, IEEE80211_S_RUN, -1); 528 } else { 529 bs->bs_chan = sc->sc_cur_chan; 530 ieee80211_new_state(&ic->ic_if, IEEE80211_S_SCAN, -1); 531 } 532 return 0; 533 } 534 535 static void 536 awi_stop(struct ifnet *ifp, int disable) 537 { 538 struct awi_softc *sc = ifp->if_softc; 539 540 if (!sc->sc_enabled) 541 return; 542 543 DPRINTF(("awi_stop(%d)\n", disable)); 544 545 ieee80211_new_state(&sc->sc_ic.ic_if, IEEE80211_S_INIT, -1); 546 547 if (!sc->sc_invalid) { 548 if (sc->sc_cmd_inprog) 549 (void)awi_cmd_wait(sc); 550 (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); 551 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 552 awi_write_1(sc, AWI_CA_FTX_DATA, 1); 553 awi_write_1(sc, AWI_CA_FTX_MGT, 0); 554 awi_write_1(sc, AWI_CA_FTX_BCAST, 0); 555 awi_write_1(sc, AWI_CA_FTX_PS, 0); 556 awi_write_1(sc, AWI_CA_FTX_CF, 0); 557 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); 558 } 559 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 560 ifp->if_timer = 0; 561 sc->sc_tx_timer = sc->sc_rx_timer = 0; 562 if (sc->sc_rxpend != NULL) { 563 m_freem(sc->sc_rxpend); 564 sc->sc_rxpend = NULL; 565 } 566 IFQ_PURGE(&ifp->if_snd); 567 568 if (disable) { 569 if (sc->sc_disable) 570 (*sc->sc_disable)(sc); 571 sc->sc_enabled = 0; 572 } 573 } 574 575 static void 576 awi_start(struct ifnet *ifp) 577 { 578 struct awi_softc *sc = ifp->if_softc; 579 struct ieee80211com *ic = &sc->sc_ic; 580 struct mbuf *m, *m0; 581 int len; 582 u_int32_t txd, frame, ntxd; 583 u_int8_t rate; 584 585 if (!sc->sc_enabled || sc->sc_invalid) 586 return; 587 588 for (;;) { 589 txd = sc->sc_txnext; 590 IF_POLL(&ic->ic_mgtq, m0); 591 if (m0 != NULL) { 592 if (awi_next_txd(sc, m0->m_pkthdr.len, &frame, &ntxd)) { 593 ifp->if_flags |= IFF_OACTIVE; 594 break; 595 } 596 IF_DEQUEUE(&ic->ic_mgtq, m0); 597 } else { 598 if (ic->ic_state != IEEE80211_S_RUN) 599 break; 600 IFQ_POLL(&ifp->if_snd, m0); 601 if (m0 == NULL) 602 break; 603 /* 604 * Need to calculate the real length to determine 605 * if the transmit buffer has a room for the packet. 606 */ 607 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 608 if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) 609 len += sizeof(struct llc) - 610 sizeof(struct ether_header); 611 if (ic->ic_flags & IEEE80211_F_WEPON) 612 len += IEEE80211_WEP_IVLEN + 613 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 614 if (awi_next_txd(sc, len, &frame, &ntxd)) { 615 ifp->if_flags |= IFF_OACTIVE; 616 break; 617 } 618 IFQ_DEQUEUE(&ifp->if_snd, m0); 619 ifp->if_opackets++; 620 #if NBPFILTER > 0 621 if (ifp->if_bpf) 622 bpf_mtap(ifp->if_bpf, m0); 623 #endif 624 if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) 625 m0 = awi_ether_encap(sc, m0); 626 else 627 m0 = ieee80211_encap(ifp, m0); 628 if ((ic->ic_flags & IEEE80211_F_WEPON) && m0 != NULL) 629 m0 = ieee80211_wep_crypt(ifp, m0, 1); 630 if (m0 == NULL) { 631 ifp->if_oerrors++; 632 continue; 633 } 634 #ifdef DIAGNOSTIC 635 if (m0->m_pkthdr.len != len) { 636 printf("%s: length %d should be %d\n", 637 ifp->if_xname, m0->m_pkthdr.len, len); 638 m_freem(m0); 639 ifp->if_oerrors++; 640 continue; 641 } 642 #endif 643 } 644 645 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 646 ieee80211_dump_pkt(m0->m_data, m0->m_len, 647 ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 648 IEEE80211_RATE_VAL, -1); 649 650 for (m = m0, len = 0; m != NULL; m = m->m_next) { 651 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 652 m->m_len); 653 len += m->m_len; 654 } 655 m_freem(m0); 656 rate = (ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 657 IEEE80211_RATE_VAL) * 5; 658 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 659 awi_write_4(sc, txd + AWI_TXD_START, frame); 660 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 661 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 662 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 663 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 664 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 665 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 666 sc->sc_txnext = ntxd; 667 668 sc->sc_tx_timer = 5; 669 ifp->if_timer = 1; 670 } 671 } 672 673 static void 674 awi_watchdog(struct ifnet *ifp) 675 { 676 struct awi_softc *sc = ifp->if_softc; 677 u_int32_t prevdone; 678 int ocansleep; 679 680 ifp->if_timer = 0; 681 if (!sc->sc_enabled || sc->sc_invalid) 682 return; 683 684 ocansleep = sc->sc_cansleep; 685 sc->sc_cansleep = 0; 686 if (sc->sc_tx_timer) { 687 if (--sc->sc_tx_timer == 0) { 688 printf("%s: device timeout\n", ifp->if_xname); 689 prevdone = sc->sc_txdone; 690 awi_tx_int(sc); 691 if (sc->sc_txdone == prevdone) { 692 ifp->if_oerrors++; 693 awi_init(ifp); 694 goto out; 695 } 696 } 697 ifp->if_timer = 1; 698 } 699 if (sc->sc_rx_timer) { 700 if (--sc->sc_rx_timer == 0) { 701 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 702 ieee80211_new_state(ifp, IEEE80211_S_SCAN, -1); 703 goto out; 704 } 705 } else 706 ifp->if_timer = 1; 707 } 708 /* TODO: rate control */ 709 ieee80211_watchdog(ifp); 710 out: 711 sc->sc_cansleep = ocansleep; 712 } 713 714 static int 715 awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 716 { 717 struct awi_softc *sc = ifp->if_softc; 718 struct ifreq *ifr = (struct ifreq *)data; 719 int s, error; 720 721 s = splnet(); 722 /* serialize ioctl, since we may sleep */ 723 if ((error = awi_lock(sc)) != 0) 724 goto cantlock; 725 726 switch (cmd) { 727 case SIOCSIFFLAGS: 728 if (ifp->if_flags & IFF_UP) { 729 if (sc->sc_enabled) { 730 /* 731 * To avoid rescanning another access point, 732 * do not call awi_init() here. Instead, 733 * only reflect promisc mode settings. 734 */ 735 error = awi_mode_init(sc); 736 } else 737 error = awi_init(ifp); 738 } else if (sc->sc_enabled) 739 awi_stop(ifp, 1); 740 break; 741 case SIOCSIFMEDIA: 742 case SIOCGIFMEDIA: 743 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 744 break; 745 case SIOCADDMULTI: 746 case SIOCDELMULTI: 747 error = (cmd == SIOCADDMULTI) ? 748 ether_addmulti(ifr, &sc->sc_ic.ic_ec) : 749 ether_delmulti(ifr, &sc->sc_ic.ic_ec); 750 if (error == ENETRESET) { 751 /* do not rescan */ 752 if (sc->sc_enabled) 753 error = awi_mode_init(sc); 754 else 755 error = 0; 756 } 757 break; 758 default: 759 error = ieee80211_ioctl(ifp, cmd, data); 760 if (error == ENETRESET) { 761 if (sc->sc_enabled) 762 error = awi_init(ifp); 763 else 764 error = 0; 765 } 766 break; 767 } 768 awi_unlock(sc); 769 cantlock: 770 splx(s); 771 return error; 772 } 773 774 /* 775 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 776 */ 777 static int 778 awi_media_change(struct ifnet *ifp) 779 { 780 struct awi_softc *sc = ifp->if_softc; 781 struct ieee80211com *ic = &sc->sc_ic; 782 struct ifmedia_entry *ime; 783 int i, rate, error = 0; 784 785 ime = sc->sc_media.ifm_cur; 786 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 787 ic->ic_fixed_rate = -1; 788 } else { 789 rate = awi_media_opt2rate(sc, ime->ifm_media); 790 if (rate == 0) 791 return EINVAL; 792 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 793 if ((ic->ic_sup_rates[i] & IEEE80211_RATE_VAL) == rate) 794 break; 795 } 796 if (i == IEEE80211_RATE_SIZE) 797 return EINVAL; 798 ic->ic_fixed_rate = i; 799 } 800 801 /* 802 * ADHOC,-FLAG0 ADHOC, !no_bssid, !adhoc_ap IBSS 803 * ADHOC, FLAG0 ADHOC no_bssid, !adhoc_ap WaveLAN adhoc 804 * -ADHOC,-FLAG0 ~ADHOC, !no_bssid, !adhoc_ap Infra 805 * -ADHOC, FLAG0 ADHOC, !no_bssid, adhoc_ap Melco old AP 806 * also LINK0 807 */ 808 if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 809 if ((ic->ic_flags & IEEE80211_F_ADHOC) == 0) { 810 ic->ic_flags |= IEEE80211_F_ADHOC; 811 error = ENETRESET; 812 } 813 ic->ic_flags |= IEEE80211_F_IBSSON; 814 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH && 815 (ime->ifm_media & IFM_FLAG0)) { 816 if (sc->sc_no_bssid == 0) { 817 sc->sc_no_bssid = 1; 818 error = ENETRESET; 819 } 820 } else { 821 if (sc->sc_no_bssid) { 822 sc->sc_no_bssid = 0; 823 error = ENETRESET; 824 } 825 } 826 if (sc->sc_adhoc_ap) { 827 sc->sc_adhoc_ap = 0; 828 error = ENETRESET; 829 } 830 } else { 831 ic->ic_flags &= ~IEEE80211_F_IBSSON; 832 if (sc->sc_no_bssid) { 833 sc->sc_no_bssid = 0; 834 error = ENETRESET; 835 } 836 if (ime->ifm_media & IFM_FLAG0) { 837 if ((ic->ic_flags & IEEE80211_F_ADHOC) == 0) { 838 ic->ic_flags |= IEEE80211_F_ADHOC; 839 error = ENETRESET; 840 } 841 if (!sc->sc_adhoc_ap) { 842 sc->sc_adhoc_ap = 1; 843 error = ENETRESET; 844 } 845 } else { 846 if (ic->ic_flags & IEEE80211_F_ADHOC) { 847 ic->ic_flags &= ~IEEE80211_F_ADHOC; 848 error = ENETRESET; 849 } 850 if (sc->sc_adhoc_ap) { 851 sc->sc_adhoc_ap = 0; 852 error = ENETRESET; 853 } 854 } 855 } 856 if (error == ENETRESET) { 857 if (sc->sc_enabled) 858 error = awi_init(ifp); 859 else 860 error = 0; 861 } 862 return error; 863 } 864 865 static void 866 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 867 { 868 struct awi_softc *sc = ifp->if_softc; 869 struct ieee80211com *ic = &sc->sc_ic; 870 int rate; 871 872 imr->ifm_status = IFM_AVALID; 873 if (ic->ic_state == IEEE80211_S_RUN) 874 imr->ifm_status |= IFM_ACTIVE; 875 imr->ifm_active = IFM_IEEE80211; 876 if (ic->ic_state == IEEE80211_S_RUN) 877 rate = ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 878 IEEE80211_RATE_VAL; 879 else { 880 if (ic->ic_fixed_rate == -1) 881 rate = 0; 882 else 883 rate = ic->ic_sup_rates[ic->ic_fixed_rate] & 884 IEEE80211_RATE_VAL; 885 } 886 imr->ifm_active |= awi_media_rate2opt(sc, rate); 887 if (ic->ic_flags & IEEE80211_F_ADHOC) { 888 if (sc->sc_adhoc_ap) 889 imr->ifm_active |= IFM_FLAG0; 890 else { 891 imr->ifm_active |= IFM_IEEE80211_ADHOC; 892 if (sc->sc_no_bssid) 893 imr->ifm_active |= IFM_FLAG0; 894 } 895 } 896 } 897 898 static int 899 awi_mode_init(struct awi_softc *sc) 900 { 901 struct ifnet *ifp = &sc->sc_ic.ic_if; 902 int n, error; 903 struct ether_multi *enm; 904 struct ether_multistep step; 905 906 /* reinitialize muticast filter */ 907 n = 0; 908 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 909 if (ifp->if_flags & IFF_PROMISC) { 910 sc->sc_mib_mac.aPromiscuous_Enable = 1; 911 goto set_mib; 912 } 913 sc->sc_mib_mac.aPromiscuous_Enable = 0; 914 ETHER_FIRST_MULTI(step, &sc->sc_ic.ic_ec, enm); 915 while (enm != NULL) { 916 if (n == AWI_GROUP_ADDR_SIZE || 917 memcmp(enm->enm_addrlo, enm->enm_addrhi, IEEE80211_ADDR_LEN) 918 != 0) 919 goto set_mib; 920 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], enm->enm_addrlo, 921 IEEE80211_ADDR_LEN); 922 n++; 923 ETHER_NEXT_MULTI(step, enm); 924 } 925 for (; n < AWI_GROUP_ADDR_SIZE; n++) 926 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, IEEE80211_ADDR_LEN); 927 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 928 929 set_mib: 930 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 931 ifp->if_flags &= ~IFF_ALLMULTI; 932 else 933 ifp->if_flags |= IFF_ALLMULTI; 934 sc->sc_mib_mgt.Wep_Required = 935 (sc->sc_ic.ic_flags & IEEE80211_F_WEPON) ? 1 : 0; 936 937 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 938 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 939 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 940 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 941 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 942 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 943 return error; 944 } 945 return 0; 946 } 947 948 /* XXX should be moved to if_ieee80211subr.c ? */ 949 static int 950 awi_media_rate2opt(struct awi_softc *sc, int rate) 951 { 952 int mword; 953 954 mword = 0; 955 switch (rate & IEEE80211_RATE_VAL) { 956 case 2: 957 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 958 mword = IFM_IEEE80211_FH1; 959 else 960 mword = IFM_IEEE80211_DS1; 961 break; 962 case 4: 963 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 964 mword = IFM_IEEE80211_FH2; 965 else 966 mword = IFM_IEEE80211_DS2; 967 break; 968 case 11: 969 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 970 mword = IFM_IEEE80211_DS5; 971 break; 972 case 22: 973 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 974 mword = IFM_IEEE80211_DS11; 975 break; 976 } 977 return mword; 978 } 979 980 static int 981 awi_media_opt2rate(struct awi_softc *sc, int opt) 982 { 983 int rate; 984 985 rate = 0; 986 switch (IFM_SUBTYPE(opt)) { 987 case IFM_IEEE80211_FH1: 988 case IFM_IEEE80211_FH2: 989 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 990 return 0; 991 break; 992 case IFM_IEEE80211_DS1: 993 case IFM_IEEE80211_DS2: 994 case IFM_IEEE80211_DS5: 995 case IFM_IEEE80211_DS11: 996 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_DS) 997 return 0; 998 break; 999 } 1000 1001 switch (IFM_SUBTYPE(opt)) { 1002 case IFM_IEEE80211_FH1: 1003 case IFM_IEEE80211_DS1: 1004 rate = 2; 1005 break; 1006 case IFM_IEEE80211_FH2: 1007 case IFM_IEEE80211_DS2: 1008 rate = 4; 1009 break; 1010 case IFM_IEEE80211_DS5: 1011 rate = 11; 1012 break; 1013 case IFM_IEEE80211_DS11: 1014 rate = 22; 1015 break; 1016 } 1017 return rate; 1018 } 1019 1020 static void 1021 awi_rx_int(struct awi_softc *sc) 1022 { 1023 struct ifnet *ifp = &sc->sc_ic.ic_if; 1024 u_int8_t state, rate, rssi; 1025 u_int16_t len; 1026 u_int32_t frame, next, timoff, rxoff; 1027 struct mbuf *m; 1028 1029 rxoff = sc->sc_rxdoff; 1030 for (;;) { 1031 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1032 if (state & AWI_RXD_ST_OWN) 1033 break; 1034 if (!(state & AWI_RXD_ST_CONSUMED)) { 1035 if (state & AWI_RXD_ST_RXERROR) { 1036 ifp->if_ierrors++; 1037 goto rx_next; 1038 } 1039 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1040 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1041 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1042 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1043 0x7fff; 1044 timoff = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1045 m = awi_devget(sc, frame, len); 1046 if (m == NULL) { 1047 ifp->if_ierrors++; 1048 goto rx_next; 1049 } 1050 if (state & AWI_RXD_ST_LF) { 1051 /* TODO check my bss */ 1052 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1053 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1054 sc->sc_rx_timer = 10; 1055 ifp->if_timer = 1; 1056 } 1057 if ((ifp->if_flags & IFF_DEBUG) && 1058 (ifp->if_flags & IFF_LINK2)) 1059 ieee80211_dump_pkt(m->m_data, m->m_len, 1060 rate / 5, rssi); 1061 if ((ifp->if_flags & IFF_LINK0) || 1062 sc->sc_adhoc_ap) 1063 m = awi_ether_modcap(sc, m); 1064 if (m == NULL) 1065 ifp->if_ierrors++; 1066 else 1067 ieee80211_input(ifp, m, rssi, timoff); 1068 } else 1069 sc->sc_rxpend = m; 1070 rx_next: 1071 state |= AWI_RXD_ST_CONSUMED; 1072 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1073 } 1074 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1075 if (next & AWI_RXD_NEXT_LAST) 1076 break; 1077 /* make sure the next pointer is correct */ 1078 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1079 break; 1080 state |= AWI_RXD_ST_OWN; 1081 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1082 rxoff = next & 0x7fff; 1083 } 1084 sc->sc_rxdoff = rxoff; 1085 } 1086 1087 static void 1088 awi_tx_int(struct awi_softc *sc) 1089 { 1090 struct ifnet *ifp = &sc->sc_ic.ic_if; 1091 u_int8_t flags; 1092 1093 while (sc->sc_txdone != sc->sc_txnext) { 1094 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1095 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1096 break; 1097 if (flags & AWI_TXD_ST_ERROR) 1098 ifp->if_oerrors++; 1099 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1100 0x7fff; 1101 } 1102 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1103 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1104 sc->sc_tx_timer = 0; 1105 ifp->if_flags &= ~IFF_OACTIVE; 1106 awi_start(ifp); 1107 } 1108 1109 static struct mbuf * 1110 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1111 { 1112 struct ifnet *ifp = &sc->sc_ic.ic_if; 1113 struct mbuf *m; 1114 struct mbuf *top, **mp; 1115 u_int tlen; 1116 1117 top = sc->sc_rxpend; 1118 mp = ⊤ 1119 if (top != NULL) { 1120 sc->sc_rxpend = NULL; 1121 top->m_pkthdr.len += len; 1122 m = top; 1123 while (*mp != NULL) { 1124 m = *mp; 1125 mp = &m->m_next; 1126 } 1127 if (m->m_flags & M_EXT) 1128 tlen = m->m_ext.ext_size; 1129 else if (m->m_flags & M_PKTHDR) 1130 tlen = MHLEN; 1131 else 1132 tlen = MLEN; 1133 tlen -= m->m_len; 1134 if (tlen > len) 1135 tlen = len; 1136 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1137 off += tlen; 1138 len -= tlen; 1139 } 1140 1141 while (len > 0) { 1142 if (top == NULL) { 1143 MGETHDR(m, M_DONTWAIT, MT_DATA); 1144 if (m == NULL) 1145 return NULL; 1146 m->m_pkthdr.rcvif = ifp; 1147 m->m_pkthdr.len = len; 1148 m->m_len = MHLEN; 1149 m->m_flags |= M_HASFCS; 1150 } else { 1151 MGET(m, M_DONTWAIT, MT_DATA); 1152 if (m == NULL) { 1153 m_freem(top); 1154 return NULL; 1155 } 1156 m->m_len = MLEN; 1157 } 1158 if (len >= MINCLSIZE) { 1159 MCLGET(m, M_DONTWAIT); 1160 if (m->m_flags & M_EXT) 1161 m->m_len = m->m_ext.ext_size; 1162 } 1163 if (top == NULL) { 1164 int hdrlen = sizeof(struct ieee80211_frame) + 1165 sizeof(struct llc); 1166 caddr_t newdata = (caddr_t) 1167 ALIGN(m->m_data + hdrlen) - hdrlen; 1168 m->m_len -= newdata - m->m_data; 1169 m->m_data = newdata; 1170 } 1171 if (m->m_len > len) 1172 m->m_len = len; 1173 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1174 off += m->m_len; 1175 len -= m->m_len; 1176 *mp = m; 1177 mp = &m->m_next; 1178 } 1179 return top; 1180 } 1181 1182 /* 1183 * Initialize hardware and start firmware to accept commands. 1184 * Called everytime after power on firmware. 1185 */ 1186 1187 static int 1188 awi_hw_init(struct awi_softc *sc) 1189 { 1190 u_int8_t status; 1191 u_int16_t intmask; 1192 int i, error; 1193 1194 sc->sc_enab_intr = 0; 1195 sc->sc_invalid = 0; /* XXX: really? */ 1196 awi_drvstate(sc, AWI_DRV_RESET); 1197 1198 /* reset firmware */ 1199 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1200 DELAY(100); 1201 awi_write_1(sc, AWI_SELFTEST, 0); 1202 awi_write_1(sc, AWI_CMD, 0); 1203 awi_write_1(sc, AWI_BANNER, 0); 1204 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1205 DELAY(100); 1206 1207 /* wait for selftest completion */ 1208 for (i = 0; ; i++) { 1209 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1210 printf("%s: failed to complete selftest (timeout)\n", 1211 sc->sc_dev.dv_xname); 1212 return ENXIO; 1213 } 1214 status = awi_read_1(sc, AWI_SELFTEST); 1215 if ((status & 0xf0) == 0xf0) 1216 break; 1217 if (sc->sc_cansleep) { 1218 sc->sc_sleep_cnt++; 1219 (void)tsleep(sc, PWAIT, "awitst", 1); 1220 sc->sc_sleep_cnt--; 1221 } else { 1222 DELAY(1000*1000/hz); 1223 } 1224 } 1225 if (status != AWI_SELFTEST_PASSED) { 1226 printf("%s: failed to complete selftest (code %x)\n", 1227 sc->sc_dev.dv_xname, status); 1228 return ENXIO; 1229 } 1230 1231 /* check banner to confirm firmware write it */ 1232 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1233 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1234 printf("%s: failed to complete selftest (bad banner)\n", 1235 sc->sc_dev.dv_xname); 1236 for (i = 0; i < AWI_BANNER_LEN; i++) 1237 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1238 printf("\n"); 1239 return ENXIO; 1240 } 1241 1242 /* initializing interrupt */ 1243 sc->sc_enab_intr = 1; 1244 error = awi_intr_lock(sc); 1245 if (error) 1246 return error; 1247 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1248 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1249 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1250 awi_write_1(sc, AWI_INTMASK2, 0); 1251 awi_write_1(sc, AWI_INTSTAT, 0); 1252 awi_write_1(sc, AWI_INTSTAT2, 0); 1253 awi_intr_unlock(sc); 1254 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1255 1256 /* issuing interface test command */ 1257 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1258 if (error) { 1259 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1260 if (error == ENXIO) 1261 printf(" (no hardware)\n"); 1262 else if (error != EWOULDBLOCK) 1263 printf(" (error %d)\n", error); 1264 else if (sc->sc_cansleep) 1265 printf(" (lost interrupt)\n"); 1266 else 1267 printf(" (command timeout)\n"); 1268 } 1269 return error; 1270 } 1271 1272 /* 1273 * Extract the factory default MIB value from firmware and assign the driver 1274 * default value. 1275 * Called once at attaching the interface. 1276 */ 1277 1278 static int 1279 awi_init_mibs(struct awi_softc *sc) 1280 { 1281 int i, error; 1282 struct awi_chanset *cs; 1283 1284 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1285 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1286 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1287 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1288 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1289 printf("%s: failed to get default mib value (error %d)\n", 1290 sc->sc_dev.dv_xname, error); 1291 return error; 1292 } 1293 1294 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1295 for (cs = awi_chanset; ; cs++) { 1296 if (cs->cs_type == 0) { 1297 printf("%s: failed to set available channel\n", 1298 sc->sc_dev.dv_xname); 1299 return ENXIO; 1300 } 1301 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1302 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1303 break; 1304 } 1305 for (i = cs->cs_min; i <= cs->cs_max; i++) 1306 setbit(sc->sc_ic.ic_chan_avail, i); 1307 sc->sc_cur_chan = cs->cs_def; 1308 1309 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1310 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1311 sc->sc_mib_local.Fragmentation_Dis = 1; 1312 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1313 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1314 1315 /* allocate buffers */ 1316 sc->sc_txbase = AWI_BUFFERS; 1317 sc->sc_txend = sc->sc_txbase + 1318 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1319 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1320 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1321 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1322 sc->sc_txend - sc->sc_txbase); 1323 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1324 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1325 AWI_BUFFERS_END - sc->sc_txend); 1326 sc->sc_mib_local.Network_Mode = 1; 1327 sc->sc_mib_local.Acting_as_AP = 0; 1328 return 0; 1329 } 1330 1331 static int 1332 awi_chan_check(void *arg, u_char *chanreq) 1333 { 1334 struct awi_softc *sc = arg; 1335 int i; 1336 struct awi_chanset *cs; 1337 u_char chanlist[(IEEE80211_CHAN_MAX+1)/NBBY]; 1338 1339 for (cs = awi_chanset; cs->cs_type != 0; cs++) { 1340 if (cs->cs_type != sc->sc_mib_phy.IEEE_PHY_Type) 1341 continue; 1342 memset(chanlist, 0, sizeof(chanlist)); 1343 for (i = 0; ; i++) { 1344 if (i == IEEE80211_CHAN_MAX) { 1345 sc->sc_mib_phy.aCurrent_Reg_Domain = 1346 cs->cs_region; 1347 memcpy(sc->sc_ic.ic_chan_avail, chanlist, 1348 sizeof(sc->sc_ic.ic_chan_avail)); 1349 sc->sc_cur_chan = cs->cs_def; 1350 return 0; 1351 } 1352 if (i >= cs->cs_min && i <= cs->cs_max) 1353 setbit(chanlist, i); 1354 else if (isset(chanreq, i)) 1355 break; 1356 } 1357 } 1358 return EINVAL; 1359 } 1360 1361 static int 1362 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1363 { 1364 int error; 1365 u_int8_t size, *ptr; 1366 1367 switch (mib) { 1368 case AWI_MIB_LOCAL: 1369 ptr = (u_int8_t *)&sc->sc_mib_local; 1370 size = sizeof(sc->sc_mib_local); 1371 break; 1372 case AWI_MIB_ADDR: 1373 ptr = (u_int8_t *)&sc->sc_mib_addr; 1374 size = sizeof(sc->sc_mib_addr); 1375 break; 1376 case AWI_MIB_MAC: 1377 ptr = (u_int8_t *)&sc->sc_mib_mac; 1378 size = sizeof(sc->sc_mib_mac); 1379 break; 1380 case AWI_MIB_STAT: 1381 ptr = (u_int8_t *)&sc->sc_mib_stat; 1382 size = sizeof(sc->sc_mib_stat); 1383 break; 1384 case AWI_MIB_MGT: 1385 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1386 size = sizeof(sc->sc_mib_mgt); 1387 break; 1388 case AWI_MIB_PHY: 1389 ptr = (u_int8_t *)&sc->sc_mib_phy; 1390 size = sizeof(sc->sc_mib_phy); 1391 break; 1392 default: 1393 return EINVAL; 1394 } 1395 if (sc->sc_cmd_inprog) { 1396 if ((error = awi_cmd_wait(sc)) != 0) { 1397 if (error == EWOULDBLOCK) 1398 DPRINTF(("awi_mib: cmd %d inprog", 1399 sc->sc_cmd_inprog)); 1400 return error; 1401 } 1402 } 1403 sc->sc_cmd_inprog = cmd; 1404 if (cmd == AWI_CMD_SET_MIB) 1405 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1406 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1407 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1408 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1409 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1410 return error; 1411 if (cmd == AWI_CMD_GET_MIB) { 1412 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1413 #ifdef AWI_DEBUG 1414 if (awi_debug) { 1415 int i; 1416 1417 printf("awi_mib: #%d:", mib); 1418 for (i = 0; i < size; i++) 1419 printf(" %02x", ptr[i]); 1420 printf("\n"); 1421 } 1422 #endif 1423 } 1424 return 0; 1425 } 1426 1427 static int 1428 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1429 { 1430 u_int8_t status; 1431 int error = 0; 1432 #ifdef AWI_DEBUG 1433 static const char *cmdname[] = { 1434 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1435 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1436 }; 1437 #endif 1438 1439 #ifdef AWI_DEBUG 1440 if (awi_debug > 1) { 1441 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1442 printf("awi_cmd: #%d", cmd); 1443 else 1444 printf("awi_cmd: %s", cmdname[cmd]); 1445 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1446 } 1447 #endif 1448 sc->sc_cmd_inprog = cmd; 1449 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1450 awi_write_1(sc, AWI_CMD, cmd); 1451 if (wflag == AWI_NOWAIT) 1452 return EINPROGRESS; 1453 if ((error = awi_cmd_wait(sc)) != 0) 1454 return error; 1455 status = awi_read_1(sc, AWI_CMD_STATUS); 1456 awi_write_1(sc, AWI_CMD, 0); 1457 switch (status) { 1458 case AWI_STAT_OK: 1459 break; 1460 case AWI_STAT_BADPARM: 1461 return EINVAL; 1462 default: 1463 printf("%s: command %d failed %x\n", 1464 sc->sc_dev.dv_xname, cmd, status); 1465 return ENXIO; 1466 } 1467 return 0; 1468 } 1469 1470 static int 1471 awi_cmd_wait(struct awi_softc *sc) 1472 { 1473 int i, error = 0; 1474 1475 i = 0; 1476 while (sc->sc_cmd_inprog) { 1477 if (sc->sc_invalid) 1478 return ENXIO; 1479 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1480 printf("%s: failed to access hardware\n", 1481 sc->sc_dev.dv_xname); 1482 sc->sc_invalid = 1; 1483 return ENXIO; 1484 } 1485 if (sc->sc_cansleep) { 1486 sc->sc_sleep_cnt++; 1487 error = tsleep(sc, PWAIT, "awicmd", 1488 AWI_CMD_TIMEOUT*hz/1000); 1489 sc->sc_sleep_cnt--; 1490 } else { 1491 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1492 awi_cmd_done(sc); 1493 break; 1494 } 1495 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1496 error = EWOULDBLOCK; 1497 else 1498 DELAY(10); 1499 } 1500 if (error) 1501 break; 1502 } 1503 if (error) { 1504 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1505 sc->sc_cmd_inprog, error)); 1506 } 1507 return error; 1508 } 1509 1510 static void 1511 awi_cmd_done(struct awi_softc *sc) 1512 { 1513 u_int8_t cmd, status; 1514 1515 status = awi_read_1(sc, AWI_CMD_STATUS); 1516 if (status == AWI_STAT_IDLE) 1517 return; /* stray interrupt */ 1518 1519 cmd = sc->sc_cmd_inprog; 1520 sc->sc_cmd_inprog = 0; 1521 wakeup(sc); 1522 awi_write_1(sc, AWI_CMD, 0); 1523 1524 if (status != AWI_STAT_OK) { 1525 printf("%s: command %d failed %x\n", 1526 sc->sc_dev.dv_xname, cmd, status); 1527 sc->sc_substate = AWI_ST_NONE; 1528 return; 1529 } 1530 if (sc->sc_substate != AWI_ST_NONE) 1531 (void)ieee80211_new_state(&sc->sc_ic.ic_if, sc->sc_nstate, -1); 1532 } 1533 1534 static int 1535 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1536 { 1537 u_int32_t txd, ntxd, frame; 1538 1539 txd = sc->sc_txnext; 1540 frame = txd + AWI_TXD_SIZE; 1541 if (frame + len > sc->sc_txend) 1542 frame = sc->sc_txbase; 1543 ntxd = frame + len; 1544 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1545 ntxd = sc->sc_txbase; 1546 *framep = frame; 1547 *ntxdp = ntxd; 1548 /* 1549 * Determine if there are any room in ring buffer. 1550 * --- send wait, === new data, +++ conflict (ENOBUFS) 1551 * base........................end 1552 * done----txd=====ntxd OK 1553 * --txd=====done++++ntxd-- full 1554 * --txd=====ntxd done-- OK 1555 * ==ntxd done----txd=== OK 1556 * ==done++++ntxd----txd=== full 1557 * ++ntxd txd=====done++ full 1558 */ 1559 if (txd < ntxd) { 1560 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1561 return ENOBUFS; 1562 } else { 1563 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1564 return ENOBUFS; 1565 } 1566 return 0; 1567 } 1568 1569 static int 1570 awi_lock(struct awi_softc *sc) 1571 { 1572 int error = 0; 1573 1574 if (curproc == NULL) { 1575 /* 1576 * XXX 1577 * Though driver ioctl should be called with context, 1578 * KAME ipv6 stack calls ioctl in interrupt for now. 1579 * We simply abort the request if there are other 1580 * ioctl requests in progress. 1581 */ 1582 if (sc->sc_busy) { 1583 return EWOULDBLOCK; 1584 if (sc->sc_invalid) 1585 return ENXIO; 1586 } 1587 sc->sc_busy = 1; 1588 sc->sc_cansleep = 0; 1589 return 0; 1590 } 1591 while (sc->sc_busy) { 1592 if (sc->sc_invalid) 1593 return ENXIO; 1594 sc->sc_sleep_cnt++; 1595 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1596 sc->sc_sleep_cnt--; 1597 if (error) 1598 return error; 1599 } 1600 sc->sc_busy = 1; 1601 sc->sc_cansleep = 1; 1602 return 0; 1603 } 1604 1605 static void 1606 awi_unlock(struct awi_softc *sc) 1607 { 1608 sc->sc_busy = 0; 1609 sc->sc_cansleep = 0; 1610 if (sc->sc_sleep_cnt) 1611 wakeup(sc); 1612 } 1613 1614 static int 1615 awi_intr_lock(struct awi_softc *sc) 1616 { 1617 u_int8_t status; 1618 int i, retry; 1619 1620 status = 1; 1621 for (retry = 0; retry < 10; retry++) { 1622 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1623 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1624 break; 1625 DELAY(5); 1626 } 1627 if (status != 0) 1628 break; 1629 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1630 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1631 break; 1632 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1633 } 1634 if (status != 0) { 1635 printf("%s: failed to lock interrupt\n", 1636 sc->sc_dev.dv_xname); 1637 return ENXIO; 1638 } 1639 return 0; 1640 } 1641 1642 static void 1643 awi_intr_unlock(struct awi_softc *sc) 1644 { 1645 1646 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1647 } 1648 1649 static int 1650 awi_newstate(void *arg, enum ieee80211_state nstate) 1651 { 1652 struct awi_softc *sc = arg; 1653 struct ieee80211com *ic = &sc->sc_ic; 1654 struct ieee80211_bss *bs = &ic->ic_bss; 1655 struct ifnet *ifp = &ic->ic_if; 1656 int i, error; 1657 u_int8_t newmode; 1658 enum ieee80211_state ostate; 1659 #ifdef AWI_DEBUG 1660 static const char *stname[] = 1661 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1662 static const char *substname[] = 1663 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1664 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1665 #endif /* AWI_DEBUG */ 1666 1667 ostate = ic->ic_state; 1668 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1669 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1670 1671 /* set LED */ 1672 switch (nstate) { 1673 case IEEE80211_S_INIT: 1674 awi_drvstate(sc, AWI_DRV_RESET); 1675 break; 1676 case IEEE80211_S_SCAN: 1677 if (ic->ic_flags & IEEE80211_F_ADHOC) 1678 awi_drvstate(sc, AWI_DRV_ADHSC); 1679 else 1680 awi_drvstate(sc, AWI_DRV_INFSY); 1681 break; 1682 case IEEE80211_S_AUTH: 1683 awi_drvstate(sc, AWI_DRV_INFSY); 1684 break; 1685 case IEEE80211_S_ASSOC: 1686 awi_drvstate(sc, AWI_DRV_INFAUTH); 1687 break; 1688 case IEEE80211_S_RUN: 1689 if (ic->ic_flags & IEEE80211_F_ADHOC) 1690 awi_drvstate(sc, AWI_DRV_ADHSY); 1691 else 1692 awi_drvstate(sc, AWI_DRV_INFASSOC); 1693 break; 1694 } 1695 1696 if (nstate == IEEE80211_S_INIT) { 1697 sc->sc_substate = AWI_ST_NONE; 1698 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1699 return 0; 1700 } 1701 1702 /* state transition */ 1703 if (nstate == IEEE80211_S_SCAN) { 1704 if (ostate == IEEE80211_S_SCAN && 1705 (ic->ic_flags & IEEE80211_F_ASCAN) == 0 && 1706 (ic->ic_flags & IEEE80211_F_ADHOC) != 0 && 1707 (ic->ic_flags & IEEE80211_F_IBSSON) != 0 && 1708 sc->sc_adhoc_ap == 0 && 1709 ic->ic_des_esslen != 0) { 1710 /* create IBSS */ 1711 if (ifp->if_flags & IFF_DEBUG) 1712 printf("%s: creating ibss\n", ifp->if_xname); 1713 ic->ic_flags |= IEEE80211_F_SIBSS; 1714 bs->bs_chan = ic->ic_ibss_chan; 1715 bs->bs_intval = ic->ic_lintval; 1716 bs->bs_nrate = 0; 1717 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 1718 if (ic->ic_sup_rates[i]) 1719 bs->bs_rates[bs->bs_nrate++] = 1720 ic->ic_sup_rates[i]; 1721 } 1722 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 1723 bs->bs_dwell = 200; /* XXX */ 1724 memcpy(bs->bs_macaddr, ic->ic_myaddr, 1725 IEEE80211_ADDR_LEN); 1726 bs->bs_esslen = ic->ic_des_esslen; 1727 memcpy(bs->bs_essid, ic->ic_des_essid, bs->bs_esslen); 1728 nstate = IEEE80211_S_RUN; 1729 sc->sc_substate = AWI_ST_NONE; 1730 /* TODO */ 1731 goto set_ssid; 1732 } 1733 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1734 1735 /* SCAN substate */ 1736 if (sc->sc_substate == AWI_ST_NONE) { 1737 sc->sc_nstate = nstate; /* next state in transition */ 1738 sc->sc_substate = AWI_ST_SCAN_INIT; 1739 } 1740 switch (sc->sc_substate) { 1741 case AWI_ST_SCAN_INIT: 1742 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1743 switch (ostate) { 1744 case IEEE80211_S_RUN: 1745 /* beacon miss */ 1746 if (ifp->if_flags & IFF_DEBUG) 1747 printf("%s: no recent beacons from %s;" 1748 " rescanning\n", 1749 ifp->if_xname, 1750 ether_sprintf(ic->ic_bss.bs_bssid)); 1751 /* FALLTHRU */ 1752 case IEEE80211_S_AUTH: 1753 case IEEE80211_S_ASSOC: 1754 /* timeout restart scan */ 1755 ieee80211_free_scan(ifp); 1756 /* FALLTHRU */ 1757 case IEEE80211_S_INIT: 1758 ic->ic_flags |= IEEE80211_F_ASCAN; 1759 ic->ic_scan_timer = 0; 1760 /* FALLTHRU */ 1761 case IEEE80211_S_SCAN: 1762 /* scan next */ 1763 break; 1764 } 1765 if (ic->ic_flags & IEEE80211_F_ASCAN) 1766 newmode = AWI_SCAN_ACTIVE; 1767 else 1768 newmode = AWI_SCAN_PASSIVE; 1769 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1770 sc->sc_mib_mgt.aScan_Mode = newmode; 1771 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1772 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1773 break; 1774 } 1775 /* FALLTHRU */ 1776 case AWI_ST_SCAN_SETMIB: 1777 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1778 if (sc->sc_cmd_inprog) { 1779 if ((error = awi_cmd_wait(sc)) != 0) 1780 break; 1781 } 1782 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1783 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1784 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1785 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1786 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1787 if (bs->bs_chan < sc->sc_cur_chan) 1788 sc->sc_fhset_one = ~sc->sc_fhset_one; 1789 if (sc->sc_fhset_one) 1790 awi_write_1(sc, AWI_CA_SCAN_SET, 1); 1791 else 1792 awi_write_1(sc, AWI_CA_SCAN_SET, 1793 bs->bs_chan % 3 + 1); 1794 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1795 bs->bs_chan); 1796 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1797 } else { 1798 awi_write_1(sc, AWI_CA_SCAN_SET, bs->bs_chan); 1799 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1800 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1801 } 1802 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1803 sc->sc_cur_chan = bs->bs_chan; 1804 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1805 != 0) 1806 break; 1807 /* FALLTHRU */ 1808 case AWI_ST_SCAN_SCCMD: 1809 if (ic->ic_scan_timer == 0) 1810 ic->ic_scan_timer = 1811 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1812 IEEE80211_ASCAN_WAIT : IEEE80211_PSCAN_WAIT; 1813 ifp->if_timer = 1; 1814 ic->ic_state = nstate; 1815 sc->sc_substate = AWI_ST_NONE; 1816 error = EINPROGRESS; 1817 break; 1818 default: 1819 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1820 stname[nstate], substname[sc->sc_substate])); 1821 sc->sc_substate = AWI_ST_NONE; 1822 error = EIO; 1823 break; 1824 } 1825 return error; 1826 } 1827 1828 if (ostate == IEEE80211_S_SCAN) { 1829 /* set SSID and channel */ 1830 set_ssid: 1831 /* substate */ 1832 if (sc->sc_substate == AWI_ST_NONE) { 1833 sc->sc_nstate = nstate; /* next state in transition */ 1834 sc->sc_substate = AWI_ST_SUB_INIT; 1835 } 1836 switch (sc->sc_substate) { 1837 case AWI_ST_SUB_INIT: 1838 sc->sc_substate = AWI_ST_SUB_SETSS; 1839 memcpy(&sc->sc_mib_mgt.aCurrent_BSS_ID, bs->bs_bssid, 1840 IEEE80211_ADDR_LEN); 1841 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 1842 AWI_ESS_ID_SIZE); 1843 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 1844 IEEE80211_ELEMID_SSID; 1845 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = bs->bs_esslen; 1846 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 1847 bs->bs_essid, bs->bs_esslen); 1848 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 1849 bs->bs_intval); 1850 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 1851 AWI_NOWAIT)) != 0) 1852 break; 1853 /* FALLTHRU */ 1854 case AWI_ST_SUB_SETSS: 1855 sc->sc_substate = AWI_ST_SUB_SYNC; 1856 if (sc->sc_cmd_inprog) { 1857 if (awi_cmd_wait(sc)) 1858 break; 1859 } 1860 sc->sc_cmd_inprog = AWI_CMD_SYNC; 1861 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1862 if (sc->sc_fhset_one) 1863 awi_write_1(sc, AWI_CA_SYNC_SET, 1); 1864 else 1865 awi_write_1(sc, AWI_CA_SYNC_SET, 1866 bs->bs_chan % 3 + 1); 1867 awi_write_1(sc, AWI_CA_SYNC_IDX, 1); 1868 } else { 1869 awi_write_1(sc, AWI_CA_SYNC_SET, bs->bs_chan); 1870 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 1871 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 1872 } 1873 if ((ic->ic_flags & IEEE80211_F_SIBSS) && 1874 !sc->sc_no_bssid) 1875 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 1876 else 1877 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 1878 awi_write_2(sc, AWI_CA_SYNC_DWELL, bs->bs_dwell); 1879 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 1880 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 1881 bs->bs_tstamp, 8); 1882 awi_write_4(sc, AWI_CA_SYNC_REFTIME, bs->bs_timoff); 1883 sc->sc_cur_chan = bs->bs_chan; 1884 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 1885 != 0) 1886 break; 1887 /* FALLTHRU */ 1888 case AWI_ST_SUB_SYNC: 1889 sc->sc_substate = AWI_ST_NONE; 1890 if (ic->ic_flags & IEEE80211_F_SIBSS) { 1891 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 1892 AWI_MIB_MGT, AWI_WAIT)) != 0) 1893 break; 1894 memcpy(bs->bs_bssid, 1895 &sc->sc_mib_mgt.aCurrent_BSS_ID, 1896 IEEE80211_ADDR_LEN); 1897 } else { 1898 if (nstate == IEEE80211_S_RUN) { 1899 sc->sc_rx_timer = 10; 1900 ifp->if_timer = 1; 1901 } 1902 } 1903 error = 0; 1904 break; 1905 default: 1906 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1907 stname[nstate], substname[sc->sc_substate])); 1908 sc->sc_substate = AWI_ST_NONE; 1909 error = EIO; 1910 break; 1911 } 1912 return error; 1913 } 1914 1915 sc->sc_substate = AWI_ST_NONE; 1916 1917 return 0; 1918 } 1919 1920 static struct mbuf * 1921 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 1922 { 1923 struct ieee80211com *ic = &sc->sc_ic; 1924 struct ieee80211_bss *bs = &ic->ic_bss; 1925 struct ether_header *eh; 1926 struct ieee80211_frame *wh; 1927 1928 if (m->m_len < sizeof(struct ether_header)) { 1929 m = m_pullup(m, sizeof(struct ether_header)); 1930 if (m == NULL) 1931 return NULL; 1932 } 1933 eh = mtod(m, struct ether_header *); 1934 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 1935 if (m == NULL) 1936 return NULL; 1937 wh = mtod(m, struct ieee80211_frame *); 1938 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 1939 *(u_int16_t *)wh->i_dur = 0; 1940 *(u_int16_t *)wh->i_seq = 1941 htole16(bs->bs_txseq << IEEE80211_SEQ_SEQ_SHIFT); 1942 bs->bs_txseq++; 1943 if (ic->ic_flags & IEEE80211_F_ADHOC) { 1944 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1945 if (sc->sc_adhoc_ap) 1946 memcpy(wh->i_addr1, bs->bs_macaddr, IEEE80211_ADDR_LEN); 1947 else 1948 memcpy(wh->i_addr1, eh->ether_dhost, 1949 IEEE80211_ADDR_LEN); 1950 memcpy(wh->i_addr2, eh->ether_shost, IEEE80211_ADDR_LEN); 1951 memcpy(wh->i_addr3, bs->bs_bssid, IEEE80211_ADDR_LEN); 1952 } else { 1953 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 1954 memcpy(wh->i_addr1, bs->bs_bssid, IEEE80211_ADDR_LEN); 1955 memcpy(wh->i_addr2, eh->ether_shost, IEEE80211_ADDR_LEN); 1956 memcpy(wh->i_addr3, eh->ether_dhost, IEEE80211_ADDR_LEN); 1957 } 1958 return m; 1959 } 1960 1961 static struct mbuf * 1962 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 1963 { 1964 struct ieee80211com *ic = &sc->sc_ic; 1965 struct ether_header eh; 1966 struct ieee80211_frame wh; 1967 struct llc *llc; 1968 1969 if (m->m_len < sizeof(wh) + sizeof(eh)) { 1970 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 1971 if (m == NULL) 1972 return NULL; 1973 } 1974 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 1975 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 1976 return m; 1977 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 1978 m_adj(m, sizeof(eh) - sizeof(*llc)); 1979 if (ic->ic_flags & IEEE80211_F_ADHOC) 1980 memcpy(wh.i_addr2, eh.ether_shost, IEEE80211_ADDR_LEN); 1981 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 1982 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 1983 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 1984 llc->llc_control = LLC_UI; 1985 llc->llc_snap.org_code[0] = 0; 1986 llc->llc_snap.org_code[1] = 0; 1987 llc->llc_snap.org_code[2] = 0; 1988 llc->llc_snap.ether_type = eh.ether_type; 1989 return m; 1990 } 1991
Indexes created Tue Oct 21 12:09:54 GMT 2025