awi.c revision 1.41.8.1
1 /* $NetBSD: awi.c,v 1.41.8.1 2002/08/29 05:22:25 gehenna 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 __KERNEL_RCSID(0, "$NetBSD: awi.c,v 1.41.8.1 2002/08/29 05:22:25 gehenna Exp $"); 89 90 #include "opt_inet.h" 91 #include "bpfilter.h" 92 93 #include <sys/param.h> 94 #include <sys/systm.h> 95 #include <sys/kernel.h> 96 #include <sys/mbuf.h> 97 #include <sys/malloc.h> 98 #include <sys/proc.h> 99 #include <sys/socket.h> 100 #include <sys/sockio.h> 101 #include <sys/errno.h> 102 #include <sys/device.h> 103 104 #include <net/if.h> 105 #include <net/if_dl.h> 106 #include <net/if_ether.h> 107 #include <net/if_media.h> 108 #include <net/if_llc.h> 109 #include <net/if_ieee80211.h> 110 111 #ifdef INET 112 #include <netinet/in.h> 113 #include <netinet/in_systm.h> 114 #ifdef __NetBSD__ 115 #include <netinet/if_inarp.h> 116 #else 117 #include <netinet/if_ether.h> 118 #endif 119 #endif 120 121 #if NBPFILTER > 0 122 #include <net/bpf.h> 123 #endif 124 125 #include <machine/cpu.h> 126 #include <machine/bus.h> 127 #include <machine/intr.h> 128 129 #include <dev/ic/am79c930reg.h> 130 #include <dev/ic/am79c930var.h> 131 #include <dev/ic/awireg.h> 132 #include <dev/ic/awivar.h> 133 134 static int awi_init(struct ifnet *); 135 static void awi_stop(struct ifnet *, int); 136 static void awi_start(struct ifnet *); 137 static void awi_watchdog(struct ifnet *); 138 static int awi_ioctl(struct ifnet *, u_long, caddr_t); 139 static int awi_media_change(struct ifnet *); 140 static void awi_media_status(struct ifnet *, struct ifmediareq *); 141 static int awi_mode_init(struct awi_softc *); 142 static int awi_media_rate2opt(struct awi_softc *, int); 143 static int awi_media_opt2rate(struct awi_softc *, int); 144 static void awi_rx_int(struct awi_softc *); 145 static void awi_tx_int(struct awi_softc *); 146 static struct mbuf *awi_devget(struct awi_softc *, u_int32_t, u_int16_t); 147 static int awi_hw_init(struct awi_softc *); 148 static int awi_init_mibs(struct awi_softc *); 149 static int awi_chan_check(void *, u_char *); 150 static int awi_mib(struct awi_softc *, u_int8_t, u_int8_t, int); 151 static int awi_cmd(struct awi_softc *, u_int8_t, int); 152 static int awi_cmd_wait(struct awi_softc *); 153 static void awi_cmd_done(struct awi_softc *); 154 static int awi_next_txd(struct awi_softc *, int, u_int32_t *, u_int32_t *); 155 static int awi_lock(struct awi_softc *); 156 static void awi_unlock(struct awi_softc *); 157 static int awi_intr_lock(struct awi_softc *); 158 static void awi_intr_unlock(struct awi_softc *); 159 static int awi_newstate(void *, enum ieee80211_state); 160 static struct mbuf *awi_ether_encap(struct awi_softc *, struct mbuf *); 161 static struct mbuf *awi_ether_modcap(struct awi_softc *, struct mbuf *); 162 163 /* unalligned little endian access */ 164 #define LE_READ_2(p) \ 165 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)) 166 #define LE_READ_4(p) \ 167 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \ 168 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)) 169 #define LE_WRITE_2(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 #define LE_WRITE_4(p, v) \ 173 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 174 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff)), \ 175 (((u_int8_t *)(p))[2] = (((u_int32_t)(v) >> 16) & 0xff)), \ 176 (((u_int8_t *)(p))[3] = (((u_int32_t)(v) >> 24) & 0xff))) 177 178 struct awi_chanset awi_chanset[] = { 179 /* PHY type domain min max def */ 180 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_JP, 6, 17, 6 }, 181 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_ES, 0, 26, 1 }, 182 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_FR, 0, 32, 1 }, 183 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_US, 0, 77, 1 }, 184 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_CA, 0, 77, 1 }, 185 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_EU, 0, 77, 1 }, 186 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_JP, 14, 14, 14 }, 187 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_ES, 10, 11, 10 }, 188 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_FR, 10, 13, 10 }, 189 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_US, 1, 11, 3 }, 190 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_CA, 1, 11, 3 }, 191 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_EU, 1, 13, 3 }, 192 { 0, 0 } 193 }; 194 195 #ifdef AWI_DEBUG 196 int awi_debug; 197 198 #define DPRINTF(X) if (awi_debug) printf X 199 #define DPRINTF2(X) if (awi_debug > 1) printf X 200 #else 201 #define DPRINTF(X) 202 #define DPRINTF2(X) 203 #endif 204 205 int 206 awi_attach(struct awi_softc *sc) 207 { 208 struct ieee80211com *ic = &sc->sc_ic; 209 struct ifnet *ifp = &ic->ic_if; 210 int s, i, error, nrate; 211 int mword; 212 struct ifmediareq imr; 213 214 s = splnet(); 215 sc->sc_busy = 1; 216 sc->sc_substate = AWI_ST_NONE; 217 if ((error = awi_hw_init(sc)) != 0) { 218 sc->sc_invalid = 1; 219 splx(s); 220 return error; 221 } 222 error = awi_init_mibs(sc); 223 if (error != 0) { 224 sc->sc_invalid = 1; 225 splx(s); 226 return error; 227 } 228 ifp->if_softc = sc; 229 ifp->if_flags = 230 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST | IFF_NOTRAILERS; 231 ifp->if_ioctl = awi_ioctl; 232 ifp->if_start = awi_start; 233 ifp->if_init = awi_init; 234 ifp->if_stop = awi_stop; 235 ifp->if_watchdog = awi_watchdog; 236 IFQ_SET_READY(&ifp->if_snd); 237 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 238 239 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 240 ic->ic_flags = IEEE80211_F_FH; 241 else 242 ic->ic_flags = IEEE80211_F_DS; 243 ic->ic_flags |= IEEE80211_F_HASWEP | IEEE80211_F_HASIBSS; 244 ic->ic_state = IEEE80211_S_INIT; 245 ic->ic_newstate = awi_newstate; 246 ic->ic_chancheck = awi_chan_check; 247 nrate = sc->sc_mib_phy.aSuprt_Data_Rates[1]; 248 memcpy(ic->ic_sup_rates, sc->sc_mib_phy.aSuprt_Data_Rates + 2, nrate); 249 memcpy(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address, IEEE80211_ADDR_LEN); 250 251 printf("%s: IEEE802.11 %s %dMbps (firmware %s)\n", 252 sc->sc_dev.dv_xname, 253 sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH ? "FH" : "DS", 254 (ic->ic_sup_rates[nrate - 1] & IEEE80211_RATE_VAL) / 2, 255 sc->sc_banner); 256 printf("%s: 802.11 address: %s\n", sc->sc_dev.dv_xname, 257 ether_sprintf(ic->ic_myaddr)); 258 259 if_attach(ifp); 260 ieee80211_ifattach(ifp); 261 262 /* probe request is handled by hardware */ 263 ic->ic_send_mgmt[IEEE80211_FC0_SUBTYPE_PROBE_REQ 264 >> IEEE80211_FC0_SUBTYPE_SHIFT] = NULL; 265 ic->ic_recv_mgmt[IEEE80211_FC0_SUBTYPE_PROBE_REQ 266 >> IEEE80211_FC0_SUBTYPE_SHIFT] = NULL; 267 268 ifmedia_init(&sc->sc_media, 0, awi_media_change, awi_media_status); 269 mword = IFM_MAKEWORD(IFM_IEEE80211, IFM_AUTO, 0, 0); 270 ifmedia_add(&sc->sc_media, mword, 0, NULL); 271 ifmedia_add(&sc->sc_media, mword | IFM_FLAG0, 0, NULL); 272 mword |= IFM_IEEE80211_ADHOC; 273 ifmedia_add(&sc->sc_media, mword, 0, NULL); 274 ifmedia_add(&sc->sc_media, mword | IFM_FLAG0, 0, NULL); 275 for (i = 0; i < nrate; i++) { 276 mword = awi_media_rate2opt(sc, ic->ic_sup_rates[i]); 277 if (mword == 0) 278 continue; 279 mword |= IFM_IEEE80211; 280 ifmedia_add(&sc->sc_media, mword, 0, NULL); 281 ifmedia_add(&sc->sc_media, mword | IFM_FLAG0, 0, NULL); 282 mword |= IFM_IEEE80211_ADHOC; 283 ifmedia_add(&sc->sc_media, mword, 0, NULL); 284 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 285 ifmedia_add(&sc->sc_media, mword | IFM_FLAG0, 0, NULL); 286 } 287 awi_media_status(ifp, &imr); 288 ifmedia_set(&sc->sc_media, imr.ifm_active); 289 290 if ((sc->sc_sdhook = shutdownhook_establish(awi_shutdown, sc)) == NULL) 291 printf("%s: WARNING: unable to establish shutdown hook\n", 292 sc->sc_dev.dv_xname); 293 if ((sc->sc_powerhook = powerhook_establish(awi_power, sc)) == NULL) 294 printf("%s: WARNING: unable to establish power hook\n", 295 sc->sc_dev.dv_xname); 296 sc->sc_attached = 1; 297 splx(s); 298 299 /* ready to accept ioctl */ 300 awi_unlock(sc); 301 302 return 0; 303 } 304 305 int 306 awi_detach(struct awi_softc *sc) 307 { 308 struct ifnet *ifp = &sc->sc_ic.ic_if; 309 int s; 310 311 if (!sc->sc_attached) 312 return 0; 313 314 s = splnet(); 315 sc->sc_invalid = 1; 316 awi_stop(ifp, 1); 317 while (sc->sc_sleep_cnt > 0) { 318 wakeup(sc); 319 (void)tsleep(sc, PWAIT, "awidet", 1); 320 } 321 ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY); 322 ieee80211_ifdetach(ifp); 323 if_detach(ifp); 324 shutdownhook_disestablish(sc->sc_sdhook); 325 powerhook_disestablish(sc->sc_powerhook); 326 splx(s); 327 return 0; 328 } 329 330 int 331 awi_activate(struct device *self, enum devact act) 332 { 333 struct awi_softc *sc = (struct awi_softc *)self; 334 struct ifnet *ifp = &sc->sc_ic.ic_if; 335 int s, error = 0; 336 337 s = splnet(); 338 switch (act) { 339 case DVACT_ACTIVATE: 340 error = EOPNOTSUPP; 341 break; 342 case DVACT_DEACTIVATE: 343 sc->sc_invalid = 1; 344 if_deactivate(ifp); 345 break; 346 } 347 splx(s); 348 return error; 349 } 350 351 void 352 awi_power(int why, void *arg) 353 { 354 struct awi_softc *sc = arg; 355 struct ifnet *ifp = &sc->sc_ic.ic_if; 356 int s; 357 int ocansleep; 358 359 DPRINTF(("awi_power: %d\n", why)); 360 s = splnet(); 361 ocansleep = sc->sc_cansleep; 362 sc->sc_cansleep = 0; 363 switch (why) { 364 case PWR_SUSPEND: 365 case PWR_STANDBY: 366 awi_stop(ifp, 1); 367 break; 368 case PWR_RESUME: 369 if (ifp->if_flags & IFF_UP) { 370 awi_init(ifp); 371 (void)awi_intr(sc); /* make sure */ 372 } 373 break; 374 case PWR_SOFTSUSPEND: 375 case PWR_SOFTSTANDBY: 376 case PWR_SOFTRESUME: 377 break; 378 } 379 sc->sc_cansleep = ocansleep; 380 splx(s); 381 } 382 383 void 384 awi_shutdown(void *arg) 385 { 386 struct awi_softc *sc = arg; 387 struct ifnet *ifp = &sc->sc_ic.ic_if; 388 389 if (sc->sc_attached) 390 awi_stop(ifp, 1); 391 } 392 393 int 394 awi_intr(void *arg) 395 { 396 struct awi_softc *sc = arg; 397 u_int16_t status; 398 int error, handled = 0, ocansleep; 399 #ifdef AWI_DEBUG 400 static const char *intname[] = { 401 "CMD", "RX", "TX", "SCAN_CMPLT", 402 "CFP_START", "DTIM", "CFP_ENDING", "GROGGY", 403 "TXDATA", "TXBCAST", "TXPS", "TXCF", 404 "TXMGT", "#13", "RXDATA", "RXMGT" 405 }; 406 #endif 407 408 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) 409 return 0; 410 411 am79c930_gcr_setbits(&sc->sc_chip, 412 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 413 awi_write_1(sc, AWI_DIS_PWRDN, 1); 414 ocansleep = sc->sc_cansleep; 415 sc->sc_cansleep = 0; 416 417 for (;;) { 418 if ((error = awi_intr_lock(sc)) != 0) 419 break; 420 status = awi_read_1(sc, AWI_INTSTAT); 421 awi_write_1(sc, AWI_INTSTAT, 0); 422 awi_write_1(sc, AWI_INTSTAT, 0); 423 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 424 awi_write_1(sc, AWI_INTSTAT2, 0); 425 DELAY(10); 426 awi_intr_unlock(sc); 427 if (!sc->sc_cmd_inprog) 428 status &= ~AWI_INT_CMD; /* make sure */ 429 if (status == 0) 430 break; 431 #ifdef AWI_DEBUG 432 if (awi_debug > 1) { 433 int i; 434 435 printf("awi_intr: status 0x%04x", status); 436 for (i = 0; i < sizeof(intname)/sizeof(intname[0]); 437 i++) { 438 if (status & (1 << i)) 439 printf(" %s", intname[i]); 440 } 441 printf("\n"); 442 } 443 #endif 444 handled = 1; 445 if (status & AWI_INT_RX) 446 awi_rx_int(sc); 447 if (status & AWI_INT_TX) 448 awi_tx_int(sc); 449 if (status & AWI_INT_CMD) 450 awi_cmd_done(sc); 451 if (status & AWI_INT_SCAN_CMPLT) { 452 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN && 453 sc->sc_substate == AWI_ST_NONE) 454 ieee80211_next_scan(&sc->sc_ic.ic_if); 455 } 456 } 457 sc->sc_cansleep = ocansleep; 458 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 459 awi_write_1(sc, AWI_DIS_PWRDN, 0); 460 return handled; 461 } 462 463 static int 464 awi_init(struct ifnet *ifp) 465 { 466 struct awi_softc *sc = ifp->if_softc; 467 struct ieee80211com *ic = &sc->sc_ic; 468 struct ieee80211_bss *bs = &ic->ic_bss; 469 int i, error; 470 471 DPRINTF(("awi_init: enabled=%d\n", sc->sc_enabled)); 472 if (sc->sc_enabled) { 473 awi_stop(ifp, 0); 474 } else { 475 if (sc->sc_enable) 476 (*sc->sc_enable)(sc); 477 sc->sc_enabled = 1; 478 if ((error = awi_hw_init(sc)) != 0) { 479 awi_stop(ifp, 1); 480 return error; 481 } 482 } 483 ic->ic_state = IEEE80211_S_INIT; 484 485 sc->sc_mib_local.Network_Mode = 486 (ic->ic_flags & IEEE80211_F_ADHOC) ? 0 : 1; 487 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 488 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 489 sc->sc_mib_mac.aDesired_ESS_ID[1] = sc->sc_ic.ic_des_esslen; 490 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], sc->sc_ic.ic_des_essid, 491 sc->sc_ic.ic_des_esslen); 492 493 if ((error = awi_mode_init(sc)) != 0) { 494 DPRINTF(("awi_init: awi_mode_init failed %d\n", error)); 495 awi_stop(ifp, 1); 496 return error; 497 } 498 499 /* start transmitter */ 500 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 501 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 502 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 503 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 504 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 505 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 506 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 507 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 508 awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); 509 awi_write_4(sc, AWI_CA_TX_MGT, 0); 510 awi_write_4(sc, AWI_CA_TX_BCAST, 0); 511 awi_write_4(sc, AWI_CA_TX_PS, 0); 512 awi_write_4(sc, AWI_CA_TX_CF, 0); 513 if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { 514 DPRINTF(("awi_init: failed to start transmitter: %d\n", error)); 515 awi_stop(ifp, 1); 516 return error; 517 } 518 519 /* start receiver */ 520 if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { 521 DPRINTF(("awi_init: failed to start receiver: %d\n", error)); 522 awi_stop(ifp, 1); 523 return error; 524 } 525 sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); 526 sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); 527 528 ifp->if_flags |= IFF_RUNNING; 529 ifp->if_flags &= ~IFF_OACTIVE; 530 531 if ((sc->sc_ic.ic_flags & IEEE80211_F_ADHOC) && sc->sc_no_bssid) { 532 bs->bs_chan = ic->ic_ibss_chan; 533 bs->bs_intval = ic->ic_lintval; 534 bs->bs_nrate = 0; 535 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 536 if (ic->ic_sup_rates[i]) 537 bs->bs_rates[bs->bs_nrate++] = 538 ic->ic_sup_rates[i]; 539 } 540 memcpy(bs->bs_macaddr, ic->ic_myaddr, IEEE80211_ADDR_LEN); 541 memset(bs->bs_bssid, 0, IEEE80211_ADDR_LEN); 542 bs->bs_esslen = 0; 543 ic->ic_flags |= IEEE80211_F_SIBSS; 544 ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ 545 sc->sc_substate = AWI_ST_NONE; 546 ieee80211_new_state(&ic->ic_if, IEEE80211_S_RUN, -1); 547 } else { 548 bs->bs_chan = sc->sc_cur_chan; 549 ieee80211_new_state(&ic->ic_if, IEEE80211_S_SCAN, -1); 550 } 551 return 0; 552 } 553 554 static void 555 awi_stop(struct ifnet *ifp, int disable) 556 { 557 struct awi_softc *sc = ifp->if_softc; 558 559 if (!sc->sc_enabled) 560 return; 561 562 DPRINTF(("awi_stop(%d)\n", disable)); 563 564 ieee80211_new_state(&sc->sc_ic.ic_if, IEEE80211_S_INIT, -1); 565 566 if (!sc->sc_invalid) { 567 if (sc->sc_cmd_inprog) 568 (void)awi_cmd_wait(sc); 569 (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); 570 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 571 awi_write_1(sc, AWI_CA_FTX_DATA, 1); 572 awi_write_1(sc, AWI_CA_FTX_MGT, 0); 573 awi_write_1(sc, AWI_CA_FTX_BCAST, 0); 574 awi_write_1(sc, AWI_CA_FTX_PS, 0); 575 awi_write_1(sc, AWI_CA_FTX_CF, 0); 576 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); 577 } 578 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 579 ifp->if_timer = 0; 580 sc->sc_tx_timer = sc->sc_rx_timer = 0; 581 if (sc->sc_rxpend != NULL) { 582 m_freem(sc->sc_rxpend); 583 sc->sc_rxpend = NULL; 584 } 585 IFQ_PURGE(&ifp->if_snd); 586 587 if (disable) { 588 if (sc->sc_disable) 589 (*sc->sc_disable)(sc); 590 sc->sc_enabled = 0; 591 } 592 } 593 594 static void 595 awi_start(struct ifnet *ifp) 596 { 597 struct awi_softc *sc = ifp->if_softc; 598 struct ieee80211com *ic = &sc->sc_ic; 599 struct mbuf *m, *m0; 600 int len, dowep; 601 u_int32_t txd, frame, ntxd; 602 u_int8_t rate; 603 604 if (!sc->sc_enabled || sc->sc_invalid) 605 return; 606 607 for (;;) { 608 txd = sc->sc_txnext; 609 IF_POLL(&ic->ic_mgtq, m0); 610 dowep = 0; 611 if (m0 != NULL) { 612 len = m0->m_pkthdr.len; 613 if (awi_next_txd(sc, len, &frame, &ntxd)) { 614 ifp->if_flags |= IFF_OACTIVE; 615 break; 616 } 617 IF_DEQUEUE(&ic->ic_mgtq, m0); 618 } else { 619 if (ic->ic_state != IEEE80211_S_RUN) 620 break; 621 IFQ_POLL(&ifp->if_snd, m0); 622 if (m0 == NULL) 623 break; 624 /* 625 * Need to calculate the real length to determine 626 * if the transmit buffer has a room for the packet. 627 */ 628 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 629 if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) 630 len += sizeof(struct llc) - 631 sizeof(struct ether_header); 632 if (ic->ic_flags & IEEE80211_F_WEPON) { 633 dowep = 1; 634 len += IEEE80211_WEP_IVLEN + 635 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 636 } 637 if (awi_next_txd(sc, len, &frame, &ntxd)) { 638 ifp->if_flags |= IFF_OACTIVE; 639 break; 640 } 641 IFQ_DEQUEUE(&ifp->if_snd, m0); 642 ifp->if_opackets++; 643 #if NBPFILTER > 0 644 if (ifp->if_bpf) 645 bpf_mtap(ifp->if_bpf, m0); 646 #endif 647 if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) 648 m0 = awi_ether_encap(sc, m0); 649 else 650 m0 = ieee80211_encap(ifp, m0); 651 if (m0 == NULL) { 652 ifp->if_oerrors++; 653 continue; 654 } 655 } 656 #if NBPFILTER > 0 657 if (ic->ic_rawbpf) 658 bpf_mtap(ic->ic_rawbpf, m0); 659 #endif 660 if (dowep) { 661 if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) { 662 ifp->if_oerrors++; 663 continue; 664 } 665 } 666 #ifdef DIAGNOSTIC 667 if (m0->m_pkthdr.len != len) { 668 printf("%s: length %d should be %d\n", 669 ifp->if_xname, m0->m_pkthdr.len, len); 670 m_freem(m0); 671 ifp->if_oerrors++; 672 continue; 673 } 674 #endif 675 676 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 677 ieee80211_dump_pkt(m0->m_data, m0->m_len, 678 ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 679 IEEE80211_RATE_VAL, -1); 680 681 for (m = m0, len = 0; m != NULL; m = m->m_next) { 682 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 683 m->m_len); 684 len += m->m_len; 685 } 686 m_freem(m0); 687 rate = (ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 688 IEEE80211_RATE_VAL) * 5; 689 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 690 awi_write_4(sc, txd + AWI_TXD_START, frame); 691 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 692 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 693 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 694 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 695 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 696 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 697 sc->sc_txnext = ntxd; 698 699 sc->sc_tx_timer = 5; 700 ifp->if_timer = 1; 701 } 702 } 703 704 static void 705 awi_watchdog(struct ifnet *ifp) 706 { 707 struct awi_softc *sc = ifp->if_softc; 708 u_int32_t prevdone; 709 int ocansleep; 710 711 ifp->if_timer = 0; 712 if (!sc->sc_enabled || sc->sc_invalid) 713 return; 714 715 ocansleep = sc->sc_cansleep; 716 sc->sc_cansleep = 0; 717 if (sc->sc_tx_timer) { 718 if (--sc->sc_tx_timer == 0) { 719 printf("%s: device timeout\n", ifp->if_xname); 720 prevdone = sc->sc_txdone; 721 awi_tx_int(sc); 722 if (sc->sc_txdone == prevdone) { 723 ifp->if_oerrors++; 724 awi_init(ifp); 725 goto out; 726 } 727 } 728 ifp->if_timer = 1; 729 } 730 if (sc->sc_rx_timer) { 731 if (--sc->sc_rx_timer == 0) { 732 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 733 ieee80211_new_state(ifp, IEEE80211_S_SCAN, -1); 734 goto out; 735 } 736 } else 737 ifp->if_timer = 1; 738 } 739 /* TODO: rate control */ 740 ieee80211_watchdog(ifp); 741 out: 742 sc->sc_cansleep = ocansleep; 743 } 744 745 static int 746 awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 747 { 748 struct awi_softc *sc = ifp->if_softc; 749 struct ifreq *ifr = (struct ifreq *)data; 750 int s, error; 751 752 s = splnet(); 753 /* serialize ioctl, since we may sleep */ 754 if ((error = awi_lock(sc)) != 0) 755 goto cantlock; 756 757 switch (cmd) { 758 case SIOCSIFFLAGS: 759 if (ifp->if_flags & IFF_UP) { 760 if (sc->sc_enabled) { 761 /* 762 * To avoid rescanning another access point, 763 * do not call awi_init() here. Instead, 764 * only reflect promisc mode settings. 765 */ 766 error = awi_mode_init(sc); 767 } else 768 error = awi_init(ifp); 769 } else if (sc->sc_enabled) 770 awi_stop(ifp, 1); 771 break; 772 case SIOCSIFMEDIA: 773 case SIOCGIFMEDIA: 774 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 775 break; 776 case SIOCADDMULTI: 777 case SIOCDELMULTI: 778 error = (cmd == SIOCADDMULTI) ? 779 ether_addmulti(ifr, &sc->sc_ic.ic_ec) : 780 ether_delmulti(ifr, &sc->sc_ic.ic_ec); 781 if (error == ENETRESET) { 782 /* do not rescan */ 783 if (sc->sc_enabled) 784 error = awi_mode_init(sc); 785 else 786 error = 0; 787 } 788 break; 789 default: 790 error = ieee80211_ioctl(ifp, cmd, data); 791 if (error == ENETRESET) { 792 if (sc->sc_enabled) 793 error = awi_init(ifp); 794 else 795 error = 0; 796 } 797 break; 798 } 799 awi_unlock(sc); 800 cantlock: 801 splx(s); 802 return error; 803 } 804 805 /* 806 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 807 */ 808 static int 809 awi_media_change(struct ifnet *ifp) 810 { 811 struct awi_softc *sc = ifp->if_softc; 812 struct ieee80211com *ic = &sc->sc_ic; 813 struct ifmedia_entry *ime; 814 int i, rate, error = 0; 815 816 ime = sc->sc_media.ifm_cur; 817 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 818 ic->ic_fixed_rate = -1; 819 } else { 820 rate = awi_media_opt2rate(sc, ime->ifm_media); 821 if (rate == 0) 822 return EINVAL; 823 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 824 if ((ic->ic_sup_rates[i] & IEEE80211_RATE_VAL) == rate) 825 break; 826 } 827 if (i == IEEE80211_RATE_SIZE) 828 return EINVAL; 829 ic->ic_fixed_rate = i; 830 } 831 832 /* 833 * ADHOC,-FLAG0 ADHOC, !no_bssid, !adhoc_ap IBSS 834 * ADHOC, FLAG0 ADHOC no_bssid, !adhoc_ap WaveLAN adhoc 835 * -ADHOC,-FLAG0 ~ADHOC, !no_bssid, !adhoc_ap Infra 836 * -ADHOC, FLAG0 ADHOC, !no_bssid, adhoc_ap Melco old AP 837 * also LINK0 838 */ 839 if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 840 if ((ic->ic_flags & IEEE80211_F_ADHOC) == 0) { 841 ic->ic_flags |= IEEE80211_F_ADHOC; 842 error = ENETRESET; 843 } 844 ic->ic_flags |= IEEE80211_F_IBSSON; 845 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH && 846 (ime->ifm_media & IFM_FLAG0)) { 847 if (sc->sc_no_bssid == 0) { 848 sc->sc_no_bssid = 1; 849 error = ENETRESET; 850 } 851 } else { 852 if (sc->sc_no_bssid) { 853 sc->sc_no_bssid = 0; 854 error = ENETRESET; 855 } 856 } 857 if (sc->sc_adhoc_ap) { 858 sc->sc_adhoc_ap = 0; 859 error = ENETRESET; 860 } 861 } else { 862 ic->ic_flags &= ~IEEE80211_F_IBSSON; 863 if (sc->sc_no_bssid) { 864 sc->sc_no_bssid = 0; 865 error = ENETRESET; 866 } 867 if (ime->ifm_media & IFM_FLAG0) { 868 if ((ic->ic_flags & IEEE80211_F_ADHOC) == 0) { 869 ic->ic_flags |= IEEE80211_F_ADHOC; 870 error = ENETRESET; 871 } 872 if (!sc->sc_adhoc_ap) { 873 sc->sc_adhoc_ap = 1; 874 error = ENETRESET; 875 } 876 } else { 877 if (ic->ic_flags & IEEE80211_F_ADHOC) { 878 ic->ic_flags &= ~IEEE80211_F_ADHOC; 879 error = ENETRESET; 880 } 881 if (sc->sc_adhoc_ap) { 882 sc->sc_adhoc_ap = 0; 883 error = ENETRESET; 884 } 885 } 886 } 887 if (error == ENETRESET) { 888 if (sc->sc_enabled) 889 error = awi_init(ifp); 890 else 891 error = 0; 892 } 893 return error; 894 } 895 896 static void 897 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 898 { 899 struct awi_softc *sc = ifp->if_softc; 900 struct ieee80211com *ic = &sc->sc_ic; 901 int rate; 902 903 imr->ifm_status = IFM_AVALID; 904 if (ic->ic_state == IEEE80211_S_RUN) 905 imr->ifm_status |= IFM_ACTIVE; 906 imr->ifm_active = IFM_IEEE80211; 907 if (ic->ic_state == IEEE80211_S_RUN) 908 rate = ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 909 IEEE80211_RATE_VAL; 910 else { 911 if (ic->ic_fixed_rate == -1) 912 rate = 0; 913 else 914 rate = ic->ic_sup_rates[ic->ic_fixed_rate] & 915 IEEE80211_RATE_VAL; 916 } 917 imr->ifm_active |= awi_media_rate2opt(sc, rate); 918 if (ic->ic_flags & IEEE80211_F_ADHOC) { 919 if (sc->sc_adhoc_ap) 920 imr->ifm_active |= IFM_FLAG0; 921 else { 922 imr->ifm_active |= IFM_IEEE80211_ADHOC; 923 if (sc->sc_no_bssid) 924 imr->ifm_active |= IFM_FLAG0; 925 } 926 } 927 } 928 929 static int 930 awi_mode_init(struct awi_softc *sc) 931 { 932 struct ifnet *ifp = &sc->sc_ic.ic_if; 933 int n, error; 934 struct ether_multi *enm; 935 struct ether_multistep step; 936 937 /* reinitialize muticast filter */ 938 n = 0; 939 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 940 if (ifp->if_flags & IFF_PROMISC) { 941 sc->sc_mib_mac.aPromiscuous_Enable = 1; 942 goto set_mib; 943 } 944 sc->sc_mib_mac.aPromiscuous_Enable = 0; 945 ETHER_FIRST_MULTI(step, &sc->sc_ic.ic_ec, enm); 946 while (enm != NULL) { 947 if (n == AWI_GROUP_ADDR_SIZE || 948 memcmp(enm->enm_addrlo, enm->enm_addrhi, IEEE80211_ADDR_LEN) 949 != 0) 950 goto set_mib; 951 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], enm->enm_addrlo, 952 IEEE80211_ADDR_LEN); 953 n++; 954 ETHER_NEXT_MULTI(step, enm); 955 } 956 for (; n < AWI_GROUP_ADDR_SIZE; n++) 957 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, IEEE80211_ADDR_LEN); 958 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 959 960 set_mib: 961 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 962 ifp->if_flags &= ~IFF_ALLMULTI; 963 else 964 ifp->if_flags |= IFF_ALLMULTI; 965 sc->sc_mib_mgt.Wep_Required = 966 (sc->sc_ic.ic_flags & IEEE80211_F_WEPON) ? AWI_WEP_ON : AWI_WEP_OFF; 967 968 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 969 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 970 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 971 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 972 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 973 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 974 return error; 975 } 976 return 0; 977 } 978 979 /* XXX should be moved to if_ieee80211subr.c ? */ 980 static int 981 awi_media_rate2opt(struct awi_softc *sc, int rate) 982 { 983 int mword; 984 985 mword = 0; 986 switch (rate & IEEE80211_RATE_VAL) { 987 case 2: 988 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 989 mword = IFM_IEEE80211_FH1; 990 else 991 mword = IFM_IEEE80211_DS1; 992 break; 993 case 4: 994 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 995 mword = IFM_IEEE80211_FH2; 996 else 997 mword = IFM_IEEE80211_DS2; 998 break; 999 case 11: 1000 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 1001 mword = IFM_IEEE80211_DS5; 1002 break; 1003 case 22: 1004 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 1005 mword = IFM_IEEE80211_DS11; 1006 break; 1007 } 1008 return mword; 1009 } 1010 1011 static int 1012 awi_media_opt2rate(struct awi_softc *sc, int opt) 1013 { 1014 int rate; 1015 1016 rate = 0; 1017 switch (IFM_SUBTYPE(opt)) { 1018 case IFM_IEEE80211_FH1: 1019 case IFM_IEEE80211_FH2: 1020 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 1021 return 0; 1022 break; 1023 case IFM_IEEE80211_DS1: 1024 case IFM_IEEE80211_DS2: 1025 case IFM_IEEE80211_DS5: 1026 case IFM_IEEE80211_DS11: 1027 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_DS) 1028 return 0; 1029 break; 1030 } 1031 1032 switch (IFM_SUBTYPE(opt)) { 1033 case IFM_IEEE80211_FH1: 1034 case IFM_IEEE80211_DS1: 1035 rate = 2; 1036 break; 1037 case IFM_IEEE80211_FH2: 1038 case IFM_IEEE80211_DS2: 1039 rate = 4; 1040 break; 1041 case IFM_IEEE80211_DS5: 1042 rate = 11; 1043 break; 1044 case IFM_IEEE80211_DS11: 1045 rate = 22; 1046 break; 1047 } 1048 return rate; 1049 } 1050 1051 static void 1052 awi_rx_int(struct awi_softc *sc) 1053 { 1054 struct ifnet *ifp = &sc->sc_ic.ic_if; 1055 u_int8_t state, rate, rssi; 1056 u_int16_t len; 1057 u_int32_t frame, next, rstamp, rxoff; 1058 struct mbuf *m; 1059 1060 rxoff = sc->sc_rxdoff; 1061 for (;;) { 1062 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1063 if (state & AWI_RXD_ST_OWN) 1064 break; 1065 if (!(state & AWI_RXD_ST_CONSUMED)) { 1066 if (sc->sc_substate != AWI_ST_NONE) 1067 goto rx_next; 1068 if (state & AWI_RXD_ST_RXERROR) { 1069 ifp->if_ierrors++; 1070 goto rx_next; 1071 } 1072 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1073 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1074 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1075 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1076 0x7fff; 1077 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1078 m = awi_devget(sc, frame, len); 1079 if (m == NULL) { 1080 ifp->if_ierrors++; 1081 goto rx_next; 1082 } 1083 if (state & AWI_RXD_ST_LF) { 1084 /* TODO check my bss */ 1085 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1086 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1087 sc->sc_rx_timer = 10; 1088 ifp->if_timer = 1; 1089 } 1090 if ((ifp->if_flags & IFF_DEBUG) && 1091 (ifp->if_flags & IFF_LINK2)) 1092 ieee80211_dump_pkt(m->m_data, m->m_len, 1093 rate / 5, rssi); 1094 if ((ifp->if_flags & IFF_LINK0) || 1095 sc->sc_adhoc_ap) 1096 m = awi_ether_modcap(sc, m); 1097 if (m == NULL) 1098 ifp->if_ierrors++; 1099 else 1100 ieee80211_input(ifp, m, rssi, rstamp); 1101 } else 1102 sc->sc_rxpend = m; 1103 rx_next: 1104 state |= AWI_RXD_ST_CONSUMED; 1105 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1106 } 1107 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1108 if (next & AWI_RXD_NEXT_LAST) 1109 break; 1110 /* make sure the next pointer is correct */ 1111 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1112 break; 1113 state |= AWI_RXD_ST_OWN; 1114 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1115 rxoff = next & 0x7fff; 1116 } 1117 sc->sc_rxdoff = rxoff; 1118 } 1119 1120 static void 1121 awi_tx_int(struct awi_softc *sc) 1122 { 1123 struct ifnet *ifp = &sc->sc_ic.ic_if; 1124 u_int8_t flags; 1125 1126 while (sc->sc_txdone != sc->sc_txnext) { 1127 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1128 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1129 break; 1130 if (flags & AWI_TXD_ST_ERROR) 1131 ifp->if_oerrors++; 1132 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1133 0x7fff; 1134 } 1135 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1136 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1137 sc->sc_tx_timer = 0; 1138 ifp->if_flags &= ~IFF_OACTIVE; 1139 awi_start(ifp); 1140 } 1141 1142 static struct mbuf * 1143 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1144 { 1145 struct ifnet *ifp = &sc->sc_ic.ic_if; 1146 struct mbuf *m; 1147 struct mbuf *top, **mp; 1148 u_int tlen; 1149 1150 top = sc->sc_rxpend; 1151 mp = ⊤ 1152 if (top != NULL) { 1153 sc->sc_rxpend = NULL; 1154 top->m_pkthdr.len += len; 1155 m = top; 1156 while (*mp != NULL) { 1157 m = *mp; 1158 mp = &m->m_next; 1159 } 1160 if (m->m_flags & M_EXT) 1161 tlen = m->m_ext.ext_size; 1162 else if (m->m_flags & M_PKTHDR) 1163 tlen = MHLEN; 1164 else 1165 tlen = MLEN; 1166 tlen -= m->m_len; 1167 if (tlen > len) 1168 tlen = len; 1169 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1170 off += tlen; 1171 len -= tlen; 1172 } 1173 1174 while (len > 0) { 1175 if (top == NULL) { 1176 MGETHDR(m, M_DONTWAIT, MT_DATA); 1177 if (m == NULL) 1178 return NULL; 1179 m->m_pkthdr.rcvif = ifp; 1180 m->m_pkthdr.len = len; 1181 m->m_len = MHLEN; 1182 m->m_flags |= M_HASFCS; 1183 } else { 1184 MGET(m, M_DONTWAIT, MT_DATA); 1185 if (m == NULL) { 1186 m_freem(top); 1187 return NULL; 1188 } 1189 m->m_len = MLEN; 1190 } 1191 if (len >= MINCLSIZE) { 1192 MCLGET(m, M_DONTWAIT); 1193 if (m->m_flags & M_EXT) 1194 m->m_len = m->m_ext.ext_size; 1195 } 1196 if (top == NULL) { 1197 int hdrlen = sizeof(struct ieee80211_frame) + 1198 sizeof(struct llc); 1199 caddr_t newdata = (caddr_t) 1200 ALIGN(m->m_data + hdrlen) - hdrlen; 1201 m->m_len -= newdata - m->m_data; 1202 m->m_data = newdata; 1203 } 1204 if (m->m_len > len) 1205 m->m_len = len; 1206 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1207 off += m->m_len; 1208 len -= m->m_len; 1209 *mp = m; 1210 mp = &m->m_next; 1211 } 1212 return top; 1213 } 1214 1215 /* 1216 * Initialize hardware and start firmware to accept commands. 1217 * Called everytime after power on firmware. 1218 */ 1219 1220 static int 1221 awi_hw_init(struct awi_softc *sc) 1222 { 1223 u_int8_t status; 1224 u_int16_t intmask; 1225 int i, error; 1226 1227 sc->sc_enab_intr = 0; 1228 sc->sc_invalid = 0; /* XXX: really? */ 1229 awi_drvstate(sc, AWI_DRV_RESET); 1230 1231 /* reset firmware */ 1232 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1233 DELAY(100); 1234 awi_write_1(sc, AWI_SELFTEST, 0); 1235 awi_write_1(sc, AWI_CMD, 0); 1236 awi_write_1(sc, AWI_BANNER, 0); 1237 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1238 DELAY(100); 1239 1240 /* wait for selftest completion */ 1241 for (i = 0; ; i++) { 1242 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1243 printf("%s: failed to complete selftest (timeout)\n", 1244 sc->sc_dev.dv_xname); 1245 return ENXIO; 1246 } 1247 status = awi_read_1(sc, AWI_SELFTEST); 1248 if ((status & 0xf0) == 0xf0) 1249 break; 1250 if (sc->sc_cansleep) { 1251 sc->sc_sleep_cnt++; 1252 (void)tsleep(sc, PWAIT, "awitst", 1); 1253 sc->sc_sleep_cnt--; 1254 } else { 1255 DELAY(1000*1000/hz); 1256 } 1257 } 1258 if (status != AWI_SELFTEST_PASSED) { 1259 printf("%s: failed to complete selftest (code %x)\n", 1260 sc->sc_dev.dv_xname, status); 1261 return ENXIO; 1262 } 1263 1264 /* check banner to confirm firmware write it */ 1265 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1266 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1267 printf("%s: failed to complete selftest (bad banner)\n", 1268 sc->sc_dev.dv_xname); 1269 for (i = 0; i < AWI_BANNER_LEN; i++) 1270 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1271 printf("\n"); 1272 return ENXIO; 1273 } 1274 1275 /* initializing interrupt */ 1276 sc->sc_enab_intr = 1; 1277 error = awi_intr_lock(sc); 1278 if (error) 1279 return error; 1280 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1281 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1282 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1283 awi_write_1(sc, AWI_INTMASK2, 0); 1284 awi_write_1(sc, AWI_INTSTAT, 0); 1285 awi_write_1(sc, AWI_INTSTAT2, 0); 1286 awi_intr_unlock(sc); 1287 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1288 1289 /* issuing interface test command */ 1290 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1291 if (error) { 1292 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1293 if (error == ENXIO) 1294 printf(" (no hardware)\n"); 1295 else if (error != EWOULDBLOCK) 1296 printf(" (error %d)\n", error); 1297 else if (sc->sc_cansleep) 1298 printf(" (lost interrupt)\n"); 1299 else 1300 printf(" (command timeout)\n"); 1301 } 1302 return error; 1303 } 1304 1305 /* 1306 * Extract the factory default MIB value from firmware and assign the driver 1307 * default value. 1308 * Called once at attaching the interface. 1309 */ 1310 1311 static int 1312 awi_init_mibs(struct awi_softc *sc) 1313 { 1314 int i, error; 1315 struct awi_chanset *cs; 1316 1317 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1318 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1319 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1320 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1321 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1322 printf("%s: failed to get default mib value (error %d)\n", 1323 sc->sc_dev.dv_xname, error); 1324 return error; 1325 } 1326 1327 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1328 for (cs = awi_chanset; ; cs++) { 1329 if (cs->cs_type == 0) { 1330 printf("%s: failed to set available channel\n", 1331 sc->sc_dev.dv_xname); 1332 return ENXIO; 1333 } 1334 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1335 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1336 break; 1337 } 1338 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1339 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1340 setbit(sc->sc_ic.ic_chan_avail, 1341 IEEE80211_FH_CHAN(i % 3 + 1, i)); 1342 /* 1343 * According to the IEEE 802.11 specification, 1344 * hop pattern parameter for FH phy should be 1345 * incremented by 3 for given hop chanset, i.e., 1346 * the chanset parameter is calculated for given 1347 * hop patter. However, BayStack 650 Access Points 1348 * apparently use fixed hop chanset parameter value 1349 * 1 for any hop pattern. So we also try this 1350 * combination of hop chanset and pattern. 1351 */ 1352 setbit(sc->sc_ic.ic_chan_avail, 1353 IEEE80211_FH_CHAN(1, i)); 1354 } 1355 } else { 1356 for (i = cs->cs_min; i <= cs->cs_max; i++) 1357 setbit(sc->sc_ic.ic_chan_avail, i); 1358 } 1359 sc->sc_cur_chan = cs->cs_def; 1360 1361 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1362 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1363 sc->sc_mib_local.Fragmentation_Dis = 1; 1364 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1365 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1366 1367 /* allocate buffers */ 1368 sc->sc_txbase = AWI_BUFFERS; 1369 sc->sc_txend = sc->sc_txbase + 1370 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1371 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1372 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1373 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1374 sc->sc_txend - sc->sc_txbase); 1375 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1376 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1377 AWI_BUFFERS_END - sc->sc_txend); 1378 sc->sc_mib_local.Network_Mode = 1; 1379 sc->sc_mib_local.Acting_as_AP = 0; 1380 return 0; 1381 } 1382 1383 static int 1384 awi_chan_check(void *arg, u_char *chanreq) 1385 { 1386 struct awi_softc *sc = arg; 1387 int i; 1388 struct awi_chanset *cs; 1389 u_char chanlist[(IEEE80211_CHAN_MAX+1)/NBBY]; 1390 1391 for (cs = awi_chanset; cs->cs_type != 0; cs++) { 1392 if (cs->cs_type != sc->sc_mib_phy.IEEE_PHY_Type) 1393 continue; 1394 memset(chanlist, 0, sizeof(chanlist)); 1395 for (i = 0; ; i++) { 1396 if (i == IEEE80211_CHAN_MAX) { 1397 sc->sc_mib_phy.aCurrent_Reg_Domain = 1398 cs->cs_region; 1399 memcpy(sc->sc_ic.ic_chan_avail, chanlist, 1400 sizeof(sc->sc_ic.ic_chan_avail)); 1401 sc->sc_ic.ic_bss.bs_chan = cs->cs_def; 1402 sc->sc_cur_chan = cs->cs_def; 1403 return 0; 1404 } 1405 if (i >= cs->cs_min && i <= cs->cs_max) 1406 setbit(chanlist, i); 1407 else if (isset(chanreq, i)) 1408 break; 1409 } 1410 } 1411 return EINVAL; 1412 } 1413 1414 static int 1415 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1416 { 1417 int error; 1418 u_int8_t size, *ptr; 1419 1420 switch (mib) { 1421 case AWI_MIB_LOCAL: 1422 ptr = (u_int8_t *)&sc->sc_mib_local; 1423 size = sizeof(sc->sc_mib_local); 1424 break; 1425 case AWI_MIB_ADDR: 1426 ptr = (u_int8_t *)&sc->sc_mib_addr; 1427 size = sizeof(sc->sc_mib_addr); 1428 break; 1429 case AWI_MIB_MAC: 1430 ptr = (u_int8_t *)&sc->sc_mib_mac; 1431 size = sizeof(sc->sc_mib_mac); 1432 break; 1433 case AWI_MIB_STAT: 1434 ptr = (u_int8_t *)&sc->sc_mib_stat; 1435 size = sizeof(sc->sc_mib_stat); 1436 break; 1437 case AWI_MIB_MGT: 1438 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1439 size = sizeof(sc->sc_mib_mgt); 1440 break; 1441 case AWI_MIB_PHY: 1442 ptr = (u_int8_t *)&sc->sc_mib_phy; 1443 size = sizeof(sc->sc_mib_phy); 1444 break; 1445 default: 1446 return EINVAL; 1447 } 1448 if (sc->sc_cmd_inprog) { 1449 if ((error = awi_cmd_wait(sc)) != 0) { 1450 if (error == EWOULDBLOCK) 1451 DPRINTF(("awi_mib: cmd %d inprog", 1452 sc->sc_cmd_inprog)); 1453 return error; 1454 } 1455 } 1456 sc->sc_cmd_inprog = cmd; 1457 if (cmd == AWI_CMD_SET_MIB) 1458 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1459 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1460 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1461 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1462 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1463 return error; 1464 if (cmd == AWI_CMD_GET_MIB) { 1465 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1466 #ifdef AWI_DEBUG 1467 if (awi_debug) { 1468 int i; 1469 1470 printf("awi_mib: #%d:", mib); 1471 for (i = 0; i < size; i++) 1472 printf(" %02x", ptr[i]); 1473 printf("\n"); 1474 } 1475 #endif 1476 } 1477 return 0; 1478 } 1479 1480 static int 1481 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1482 { 1483 u_int8_t status; 1484 int error = 0; 1485 #ifdef AWI_DEBUG 1486 static const char *cmdname[] = { 1487 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1488 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1489 }; 1490 #endif 1491 1492 #ifdef AWI_DEBUG 1493 if (awi_debug > 1) { 1494 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1495 printf("awi_cmd: #%d", cmd); 1496 else 1497 printf("awi_cmd: %s", cmdname[cmd]); 1498 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1499 } 1500 #endif 1501 sc->sc_cmd_inprog = cmd; 1502 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1503 awi_write_1(sc, AWI_CMD, cmd); 1504 if (wflag == AWI_NOWAIT) 1505 return EINPROGRESS; 1506 if ((error = awi_cmd_wait(sc)) != 0) 1507 return error; 1508 status = awi_read_1(sc, AWI_CMD_STATUS); 1509 awi_write_1(sc, AWI_CMD, 0); 1510 switch (status) { 1511 case AWI_STAT_OK: 1512 break; 1513 case AWI_STAT_BADPARM: 1514 return EINVAL; 1515 default: 1516 printf("%s: command %d failed %x\n", 1517 sc->sc_dev.dv_xname, cmd, status); 1518 return ENXIO; 1519 } 1520 return 0; 1521 } 1522 1523 static int 1524 awi_cmd_wait(struct awi_softc *sc) 1525 { 1526 int i, error = 0; 1527 1528 i = 0; 1529 while (sc->sc_cmd_inprog) { 1530 if (sc->sc_invalid) 1531 return ENXIO; 1532 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1533 printf("%s: failed to access hardware\n", 1534 sc->sc_dev.dv_xname); 1535 sc->sc_invalid = 1; 1536 return ENXIO; 1537 } 1538 if (sc->sc_cansleep) { 1539 sc->sc_sleep_cnt++; 1540 error = tsleep(sc, PWAIT, "awicmd", 1541 AWI_CMD_TIMEOUT*hz/1000); 1542 sc->sc_sleep_cnt--; 1543 } else { 1544 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1545 awi_cmd_done(sc); 1546 break; 1547 } 1548 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1549 error = EWOULDBLOCK; 1550 else 1551 DELAY(10); 1552 } 1553 if (error) 1554 break; 1555 } 1556 if (error) { 1557 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1558 sc->sc_cmd_inprog, error)); 1559 } 1560 return error; 1561 } 1562 1563 static void 1564 awi_cmd_done(struct awi_softc *sc) 1565 { 1566 u_int8_t cmd, status; 1567 1568 status = awi_read_1(sc, AWI_CMD_STATUS); 1569 if (status == AWI_STAT_IDLE) 1570 return; /* stray interrupt */ 1571 1572 cmd = sc->sc_cmd_inprog; 1573 sc->sc_cmd_inprog = 0; 1574 wakeup(sc); 1575 awi_write_1(sc, AWI_CMD, 0); 1576 1577 if (status != AWI_STAT_OK) { 1578 printf("%s: command %d failed %x\n", 1579 sc->sc_dev.dv_xname, cmd, status); 1580 sc->sc_substate = AWI_ST_NONE; 1581 return; 1582 } 1583 if (sc->sc_substate != AWI_ST_NONE) 1584 (void)ieee80211_new_state(&sc->sc_ic.ic_if, sc->sc_nstate, -1); 1585 } 1586 1587 static int 1588 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1589 { 1590 u_int32_t txd, ntxd, frame; 1591 1592 txd = sc->sc_txnext; 1593 frame = txd + AWI_TXD_SIZE; 1594 if (frame + len > sc->sc_txend) 1595 frame = sc->sc_txbase; 1596 ntxd = frame + len; 1597 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1598 ntxd = sc->sc_txbase; 1599 *framep = frame; 1600 *ntxdp = ntxd; 1601 /* 1602 * Determine if there are any room in ring buffer. 1603 * --- send wait, === new data, +++ conflict (ENOBUFS) 1604 * base........................end 1605 * done----txd=====ntxd OK 1606 * --txd=====done++++ntxd-- full 1607 * --txd=====ntxd done-- OK 1608 * ==ntxd done----txd=== OK 1609 * ==done++++ntxd----txd=== full 1610 * ++ntxd txd=====done++ full 1611 */ 1612 if (txd < ntxd) { 1613 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1614 return ENOBUFS; 1615 } else { 1616 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1617 return ENOBUFS; 1618 } 1619 return 0; 1620 } 1621 1622 static int 1623 awi_lock(struct awi_softc *sc) 1624 { 1625 int error = 0; 1626 1627 if (curproc == NULL) { 1628 /* 1629 * XXX 1630 * Though driver ioctl should be called with context, 1631 * KAME ipv6 stack calls ioctl in interrupt for now. 1632 * We simply abort the request if there are other 1633 * ioctl requests in progress. 1634 */ 1635 if (sc->sc_busy) { 1636 return EWOULDBLOCK; 1637 if (sc->sc_invalid) 1638 return ENXIO; 1639 } 1640 sc->sc_busy = 1; 1641 sc->sc_cansleep = 0; 1642 return 0; 1643 } 1644 while (sc->sc_busy) { 1645 if (sc->sc_invalid) 1646 return ENXIO; 1647 sc->sc_sleep_cnt++; 1648 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1649 sc->sc_sleep_cnt--; 1650 if (error) 1651 return error; 1652 } 1653 sc->sc_busy = 1; 1654 sc->sc_cansleep = 1; 1655 return 0; 1656 } 1657 1658 static void 1659 awi_unlock(struct awi_softc *sc) 1660 { 1661 sc->sc_busy = 0; 1662 sc->sc_cansleep = 0; 1663 if (sc->sc_sleep_cnt) 1664 wakeup(sc); 1665 } 1666 1667 static int 1668 awi_intr_lock(struct awi_softc *sc) 1669 { 1670 u_int8_t status; 1671 int i, retry; 1672 1673 status = 1; 1674 for (retry = 0; retry < 10; retry++) { 1675 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1676 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1677 break; 1678 DELAY(5); 1679 } 1680 if (status != 0) 1681 break; 1682 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1683 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1684 break; 1685 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1686 } 1687 if (status != 0) { 1688 printf("%s: failed to lock interrupt\n", 1689 sc->sc_dev.dv_xname); 1690 return ENXIO; 1691 } 1692 return 0; 1693 } 1694 1695 static void 1696 awi_intr_unlock(struct awi_softc *sc) 1697 { 1698 1699 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1700 } 1701 1702 static int 1703 awi_newstate(void *arg, enum ieee80211_state nstate) 1704 { 1705 struct awi_softc *sc = arg; 1706 struct ieee80211com *ic = &sc->sc_ic; 1707 struct ieee80211_bss *bs = &ic->ic_bss; 1708 struct ifnet *ifp = &ic->ic_if; 1709 int error; 1710 u_int8_t newmode; 1711 enum ieee80211_state ostate; 1712 #ifdef AWI_DEBUG 1713 static const char *stname[] = 1714 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1715 static const char *substname[] = 1716 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1717 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1718 #endif /* AWI_DEBUG */ 1719 1720 ostate = ic->ic_state; 1721 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1722 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1723 1724 /* set LED */ 1725 switch (nstate) { 1726 case IEEE80211_S_INIT: 1727 awi_drvstate(sc, AWI_DRV_RESET); 1728 break; 1729 case IEEE80211_S_SCAN: 1730 if (ic->ic_flags & IEEE80211_F_ADHOC) 1731 awi_drvstate(sc, AWI_DRV_ADHSC); 1732 else 1733 awi_drvstate(sc, AWI_DRV_INFSY); 1734 break; 1735 case IEEE80211_S_AUTH: 1736 awi_drvstate(sc, AWI_DRV_INFSY); 1737 break; 1738 case IEEE80211_S_ASSOC: 1739 awi_drvstate(sc, AWI_DRV_INFAUTH); 1740 break; 1741 case IEEE80211_S_RUN: 1742 if (ic->ic_flags & IEEE80211_F_ADHOC) 1743 awi_drvstate(sc, AWI_DRV_ADHSY); 1744 else 1745 awi_drvstate(sc, AWI_DRV_INFASSOC); 1746 break; 1747 } 1748 1749 if (nstate == IEEE80211_S_INIT) { 1750 sc->sc_substate = AWI_ST_NONE; 1751 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1752 return 0; 1753 } 1754 1755 /* state transition */ 1756 if (nstate == IEEE80211_S_SCAN) { 1757 /* SCAN substate */ 1758 if (sc->sc_substate == AWI_ST_NONE) { 1759 sc->sc_nstate = nstate; /* next state in transition */ 1760 sc->sc_substate = AWI_ST_SCAN_INIT; 1761 } 1762 switch (sc->sc_substate) { 1763 case AWI_ST_SCAN_INIT: 1764 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1765 switch (ostate) { 1766 case IEEE80211_S_RUN: 1767 /* beacon miss */ 1768 if (ifp->if_flags & IFF_DEBUG) 1769 printf("%s: no recent beacons from %s;" 1770 " rescanning\n", 1771 ifp->if_xname, 1772 ether_sprintf(ic->ic_bss.bs_bssid)); 1773 /* FALLTHRU */ 1774 case IEEE80211_S_AUTH: 1775 case IEEE80211_S_ASSOC: 1776 /* timeout restart scan */ 1777 ieee80211_free_scan(ifp); 1778 /* FALLTHRU */ 1779 case IEEE80211_S_INIT: 1780 ic->ic_flags |= IEEE80211_F_ASCAN; 1781 ic->ic_scan_timer = 0; 1782 /* FALLTHRU */ 1783 case IEEE80211_S_SCAN: 1784 /* scan next */ 1785 break; 1786 } 1787 if (ic->ic_flags & IEEE80211_F_ASCAN) 1788 newmode = AWI_SCAN_ACTIVE; 1789 else 1790 newmode = AWI_SCAN_PASSIVE; 1791 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1792 sc->sc_mib_mgt.aScan_Mode = newmode; 1793 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1794 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1795 break; 1796 } 1797 /* FALLTHRU */ 1798 case AWI_ST_SCAN_SETMIB: 1799 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1800 if (sc->sc_cmd_inprog) { 1801 if ((error = awi_cmd_wait(sc)) != 0) 1802 break; 1803 } 1804 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1805 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1806 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1807 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1808 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1809 awi_write_1(sc, AWI_CA_SCAN_SET, 1810 IEEE80211_FH_CHANSET(bs->bs_chan)); 1811 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1812 IEEE80211_FH_CHANPAT(bs->bs_chan)); 1813 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1814 } else { 1815 awi_write_1(sc, AWI_CA_SCAN_SET, bs->bs_chan); 1816 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1817 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1818 } 1819 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1820 sc->sc_cur_chan = bs->bs_chan; 1821 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1822 != 0) 1823 break; 1824 /* FALLTHRU */ 1825 case AWI_ST_SCAN_SCCMD: 1826 if (ic->ic_scan_timer == 0) 1827 ic->ic_scan_timer = 1828 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1829 IEEE80211_ASCAN_WAIT : IEEE80211_PSCAN_WAIT; 1830 ifp->if_timer = 1; 1831 ic->ic_state = nstate; 1832 sc->sc_substate = AWI_ST_NONE; 1833 error = EINPROGRESS; 1834 break; 1835 default: 1836 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1837 stname[nstate], substname[sc->sc_substate])); 1838 sc->sc_substate = AWI_ST_NONE; 1839 error = EIO; 1840 break; 1841 } 1842 return error; 1843 } 1844 1845 if (ostate == IEEE80211_S_SCAN) { 1846 /* set SSID and channel */ 1847 /* substate */ 1848 if (sc->sc_substate == AWI_ST_NONE) { 1849 sc->sc_nstate = nstate; /* next state in transition */ 1850 sc->sc_substate = AWI_ST_SUB_INIT; 1851 } 1852 switch (sc->sc_substate) { 1853 case AWI_ST_SUB_INIT: 1854 sc->sc_substate = AWI_ST_SUB_SETSS; 1855 memcpy(&sc->sc_mib_mgt.aCurrent_BSS_ID, bs->bs_bssid, 1856 IEEE80211_ADDR_LEN); 1857 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 1858 AWI_ESS_ID_SIZE); 1859 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 1860 IEEE80211_ELEMID_SSID; 1861 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = bs->bs_esslen; 1862 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 1863 bs->bs_essid, bs->bs_esslen); 1864 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 1865 bs->bs_intval); 1866 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 1867 AWI_NOWAIT)) != 0) 1868 break; 1869 /* FALLTHRU */ 1870 case AWI_ST_SUB_SETSS: 1871 sc->sc_substate = AWI_ST_SUB_SYNC; 1872 if (sc->sc_cmd_inprog) { 1873 if ((error = awi_cmd_wait(sc)) != 0) 1874 break; 1875 } 1876 sc->sc_cmd_inprog = AWI_CMD_SYNC; 1877 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1878 awi_write_1(sc, AWI_CA_SYNC_SET, 1879 IEEE80211_FH_CHANSET(bs->bs_chan)); 1880 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 1881 IEEE80211_FH_CHANPAT(bs->bs_chan)); 1882 awi_write_1(sc, AWI_CA_SYNC_IDX, 1883 bs->bs_fhindex); 1884 awi_write_2(sc, AWI_CA_SYNC_DWELL, 1885 bs->bs_fhdwell); 1886 } else { 1887 awi_write_1(sc, AWI_CA_SYNC_SET, bs->bs_chan); 1888 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 1889 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 1890 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 1891 } 1892 if ((ic->ic_flags & IEEE80211_F_SIBSS) && 1893 !sc->sc_no_bssid) 1894 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 1895 else 1896 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 1897 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 1898 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 1899 bs->bs_tstamp, 8); 1900 awi_write_4(sc, AWI_CA_SYNC_REFTIME, bs->bs_rstamp); 1901 sc->sc_cur_chan = bs->bs_chan; 1902 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 1903 != 0) 1904 break; 1905 /* FALLTHRU */ 1906 case AWI_ST_SUB_SYNC: 1907 sc->sc_substate = AWI_ST_NONE; 1908 if (ic->ic_flags & IEEE80211_F_SIBSS) { 1909 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 1910 AWI_MIB_MGT, AWI_WAIT)) != 0) 1911 break; 1912 memcpy(bs->bs_bssid, 1913 &sc->sc_mib_mgt.aCurrent_BSS_ID, 1914 IEEE80211_ADDR_LEN); 1915 } else { 1916 if (nstate == IEEE80211_S_RUN) { 1917 sc->sc_rx_timer = 10; 1918 ifp->if_timer = 1; 1919 } 1920 } 1921 error = 0; 1922 break; 1923 default: 1924 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1925 stname[nstate], substname[sc->sc_substate])); 1926 sc->sc_substate = AWI_ST_NONE; 1927 error = EIO; 1928 break; 1929 } 1930 return error; 1931 } 1932 1933 sc->sc_substate = AWI_ST_NONE; 1934 1935 return 0; 1936 } 1937 1938 static struct mbuf * 1939 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 1940 { 1941 struct ieee80211com *ic = &sc->sc_ic; 1942 struct ieee80211_bss *bs = &ic->ic_bss; 1943 struct ether_header *eh; 1944 struct ieee80211_frame *wh; 1945 1946 if (m->m_len < sizeof(struct ether_header)) { 1947 m = m_pullup(m, sizeof(struct ether_header)); 1948 if (m == NULL) 1949 return NULL; 1950 } 1951 eh = mtod(m, struct ether_header *); 1952 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 1953 if (m == NULL) 1954 return NULL; 1955 wh = mtod(m, struct ieee80211_frame *); 1956 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 1957 *(u_int16_t *)wh->i_dur = 0; 1958 *(u_int16_t *)wh->i_seq = 1959 htole16(bs->bs_txseq << IEEE80211_SEQ_SEQ_SHIFT); 1960 bs->bs_txseq++; 1961 if (ic->ic_flags & IEEE80211_F_ADHOC) { 1962 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1963 if (sc->sc_adhoc_ap) 1964 memcpy(wh->i_addr1, bs->bs_macaddr, IEEE80211_ADDR_LEN); 1965 else 1966 memcpy(wh->i_addr1, eh->ether_dhost, 1967 IEEE80211_ADDR_LEN); 1968 memcpy(wh->i_addr2, eh->ether_shost, IEEE80211_ADDR_LEN); 1969 memcpy(wh->i_addr3, bs->bs_bssid, IEEE80211_ADDR_LEN); 1970 } else { 1971 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 1972 memcpy(wh->i_addr1, bs->bs_bssid, IEEE80211_ADDR_LEN); 1973 memcpy(wh->i_addr2, eh->ether_shost, IEEE80211_ADDR_LEN); 1974 memcpy(wh->i_addr3, eh->ether_dhost, IEEE80211_ADDR_LEN); 1975 } 1976 return m; 1977 } 1978 1979 static struct mbuf * 1980 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 1981 { 1982 struct ieee80211com *ic = &sc->sc_ic; 1983 struct ether_header eh; 1984 struct ieee80211_frame wh; 1985 struct llc *llc; 1986 1987 if (m->m_len < sizeof(wh) + sizeof(eh)) { 1988 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 1989 if (m == NULL) 1990 return NULL; 1991 } 1992 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 1993 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 1994 return m; 1995 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 1996 m_adj(m, sizeof(eh) - sizeof(*llc)); 1997 if (ic->ic_flags & IEEE80211_F_ADHOC) 1998 memcpy(wh.i_addr2, eh.ether_shost, IEEE80211_ADDR_LEN); 1999 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 2000 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 2001 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 2002 llc->llc_control = LLC_UI; 2003 llc->llc_snap.org_code[0] = 0; 2004 llc->llc_snap.org_code[1] = 0; 2005 llc->llc_snap.org_code[2] = 0; 2006 llc->llc_snap.ether_type = eh.ether_type; 2007 return m; 2008 } 2009
Indexes created Tue Oct 21 06:10:07 GMT 2025