awi.c revision 1.43
1 /* $NetBSD: awi.c,v 1.43 2002/08/05 06:55:07 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 <sys/cdefs.h> 88 __KERNEL_RCSID(0, "$NetBSD: awi.c,v 1.43 2002/08/05 06:55:07 onoe 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 (dowep) { 657 if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) { 658 ifp->if_oerrors++; 659 continue; 660 } 661 } 662 #ifdef DIAGNOSTIC 663 if (m0->m_pkthdr.len != len) { 664 printf("%s: length %d should be %d\n", 665 ifp->if_xname, m0->m_pkthdr.len, len); 666 m_freem(m0); 667 ifp->if_oerrors++; 668 continue; 669 } 670 #endif 671 672 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 673 ieee80211_dump_pkt(m0->m_data, m0->m_len, 674 ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 675 IEEE80211_RATE_VAL, -1); 676 677 for (m = m0, len = 0; m != NULL; m = m->m_next) { 678 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 679 m->m_len); 680 len += m->m_len; 681 } 682 m_freem(m0); 683 rate = (ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 684 IEEE80211_RATE_VAL) * 5; 685 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 686 awi_write_4(sc, txd + AWI_TXD_START, frame); 687 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 688 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 689 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 690 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 691 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 692 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 693 sc->sc_txnext = ntxd; 694 695 sc->sc_tx_timer = 5; 696 ifp->if_timer = 1; 697 } 698 } 699 700 static void 701 awi_watchdog(struct ifnet *ifp) 702 { 703 struct awi_softc *sc = ifp->if_softc; 704 u_int32_t prevdone; 705 int ocansleep; 706 707 ifp->if_timer = 0; 708 if (!sc->sc_enabled || sc->sc_invalid) 709 return; 710 711 ocansleep = sc->sc_cansleep; 712 sc->sc_cansleep = 0; 713 if (sc->sc_tx_timer) { 714 if (--sc->sc_tx_timer == 0) { 715 printf("%s: device timeout\n", ifp->if_xname); 716 prevdone = sc->sc_txdone; 717 awi_tx_int(sc); 718 if (sc->sc_txdone == prevdone) { 719 ifp->if_oerrors++; 720 awi_init(ifp); 721 goto out; 722 } 723 } 724 ifp->if_timer = 1; 725 } 726 if (sc->sc_rx_timer) { 727 if (--sc->sc_rx_timer == 0) { 728 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 729 ieee80211_new_state(ifp, IEEE80211_S_SCAN, -1); 730 goto out; 731 } 732 } else 733 ifp->if_timer = 1; 734 } 735 /* TODO: rate control */ 736 ieee80211_watchdog(ifp); 737 out: 738 sc->sc_cansleep = ocansleep; 739 } 740 741 static int 742 awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 743 { 744 struct awi_softc *sc = ifp->if_softc; 745 struct ifreq *ifr = (struct ifreq *)data; 746 int s, error; 747 748 s = splnet(); 749 /* serialize ioctl, since we may sleep */ 750 if ((error = awi_lock(sc)) != 0) 751 goto cantlock; 752 753 switch (cmd) { 754 case SIOCSIFFLAGS: 755 if (ifp->if_flags & IFF_UP) { 756 if (sc->sc_enabled) { 757 /* 758 * To avoid rescanning another access point, 759 * do not call awi_init() here. Instead, 760 * only reflect promisc mode settings. 761 */ 762 error = awi_mode_init(sc); 763 } else 764 error = awi_init(ifp); 765 } else if (sc->sc_enabled) 766 awi_stop(ifp, 1); 767 break; 768 case SIOCSIFMEDIA: 769 case SIOCGIFMEDIA: 770 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 771 break; 772 case SIOCADDMULTI: 773 case SIOCDELMULTI: 774 error = (cmd == SIOCADDMULTI) ? 775 ether_addmulti(ifr, &sc->sc_ic.ic_ec) : 776 ether_delmulti(ifr, &sc->sc_ic.ic_ec); 777 if (error == ENETRESET) { 778 /* do not rescan */ 779 if (sc->sc_enabled) 780 error = awi_mode_init(sc); 781 else 782 error = 0; 783 } 784 break; 785 default: 786 error = ieee80211_ioctl(ifp, cmd, data); 787 if (error == ENETRESET) { 788 if (sc->sc_enabled) 789 error = awi_init(ifp); 790 else 791 error = 0; 792 } 793 break; 794 } 795 awi_unlock(sc); 796 cantlock: 797 splx(s); 798 return error; 799 } 800 801 /* 802 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 803 */ 804 static int 805 awi_media_change(struct ifnet *ifp) 806 { 807 struct awi_softc *sc = ifp->if_softc; 808 struct ieee80211com *ic = &sc->sc_ic; 809 struct ifmedia_entry *ime; 810 int i, rate, error = 0; 811 812 ime = sc->sc_media.ifm_cur; 813 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 814 ic->ic_fixed_rate = -1; 815 } else { 816 rate = awi_media_opt2rate(sc, ime->ifm_media); 817 if (rate == 0) 818 return EINVAL; 819 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 820 if ((ic->ic_sup_rates[i] & IEEE80211_RATE_VAL) == rate) 821 break; 822 } 823 if (i == IEEE80211_RATE_SIZE) 824 return EINVAL; 825 ic->ic_fixed_rate = i; 826 } 827 828 /* 829 * ADHOC,-FLAG0 ADHOC, !no_bssid, !adhoc_ap IBSS 830 * ADHOC, FLAG0 ADHOC no_bssid, !adhoc_ap WaveLAN adhoc 831 * -ADHOC,-FLAG0 ~ADHOC, !no_bssid, !adhoc_ap Infra 832 * -ADHOC, FLAG0 ADHOC, !no_bssid, adhoc_ap Melco old AP 833 * also LINK0 834 */ 835 if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 836 if ((ic->ic_flags & IEEE80211_F_ADHOC) == 0) { 837 ic->ic_flags |= IEEE80211_F_ADHOC; 838 error = ENETRESET; 839 } 840 ic->ic_flags |= IEEE80211_F_IBSSON; 841 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH && 842 (ime->ifm_media & IFM_FLAG0)) { 843 if (sc->sc_no_bssid == 0) { 844 sc->sc_no_bssid = 1; 845 error = ENETRESET; 846 } 847 } else { 848 if (sc->sc_no_bssid) { 849 sc->sc_no_bssid = 0; 850 error = ENETRESET; 851 } 852 } 853 if (sc->sc_adhoc_ap) { 854 sc->sc_adhoc_ap = 0; 855 error = ENETRESET; 856 } 857 } else { 858 ic->ic_flags &= ~IEEE80211_F_IBSSON; 859 if (sc->sc_no_bssid) { 860 sc->sc_no_bssid = 0; 861 error = ENETRESET; 862 } 863 if (ime->ifm_media & IFM_FLAG0) { 864 if ((ic->ic_flags & IEEE80211_F_ADHOC) == 0) { 865 ic->ic_flags |= IEEE80211_F_ADHOC; 866 error = ENETRESET; 867 } 868 if (!sc->sc_adhoc_ap) { 869 sc->sc_adhoc_ap = 1; 870 error = ENETRESET; 871 } 872 } else { 873 if (ic->ic_flags & IEEE80211_F_ADHOC) { 874 ic->ic_flags &= ~IEEE80211_F_ADHOC; 875 error = ENETRESET; 876 } 877 if (sc->sc_adhoc_ap) { 878 sc->sc_adhoc_ap = 0; 879 error = ENETRESET; 880 } 881 } 882 } 883 if (error == ENETRESET) { 884 if (sc->sc_enabled) 885 error = awi_init(ifp); 886 else 887 error = 0; 888 } 889 return error; 890 } 891 892 static void 893 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 894 { 895 struct awi_softc *sc = ifp->if_softc; 896 struct ieee80211com *ic = &sc->sc_ic; 897 int rate; 898 899 imr->ifm_status = IFM_AVALID; 900 if (ic->ic_state == IEEE80211_S_RUN) 901 imr->ifm_status |= IFM_ACTIVE; 902 imr->ifm_active = IFM_IEEE80211; 903 if (ic->ic_state == IEEE80211_S_RUN) 904 rate = ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 905 IEEE80211_RATE_VAL; 906 else { 907 if (ic->ic_fixed_rate == -1) 908 rate = 0; 909 else 910 rate = ic->ic_sup_rates[ic->ic_fixed_rate] & 911 IEEE80211_RATE_VAL; 912 } 913 imr->ifm_active |= awi_media_rate2opt(sc, rate); 914 if (ic->ic_flags & IEEE80211_F_ADHOC) { 915 if (sc->sc_adhoc_ap) 916 imr->ifm_active |= IFM_FLAG0; 917 else { 918 imr->ifm_active |= IFM_IEEE80211_ADHOC; 919 if (sc->sc_no_bssid) 920 imr->ifm_active |= IFM_FLAG0; 921 } 922 } 923 } 924 925 static int 926 awi_mode_init(struct awi_softc *sc) 927 { 928 struct ifnet *ifp = &sc->sc_ic.ic_if; 929 int n, error; 930 struct ether_multi *enm; 931 struct ether_multistep step; 932 933 /* reinitialize muticast filter */ 934 n = 0; 935 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 936 if (ifp->if_flags & IFF_PROMISC) { 937 sc->sc_mib_mac.aPromiscuous_Enable = 1; 938 goto set_mib; 939 } 940 sc->sc_mib_mac.aPromiscuous_Enable = 0; 941 ETHER_FIRST_MULTI(step, &sc->sc_ic.ic_ec, enm); 942 while (enm != NULL) { 943 if (n == AWI_GROUP_ADDR_SIZE || 944 memcmp(enm->enm_addrlo, enm->enm_addrhi, IEEE80211_ADDR_LEN) 945 != 0) 946 goto set_mib; 947 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], enm->enm_addrlo, 948 IEEE80211_ADDR_LEN); 949 n++; 950 ETHER_NEXT_MULTI(step, enm); 951 } 952 for (; n < AWI_GROUP_ADDR_SIZE; n++) 953 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, IEEE80211_ADDR_LEN); 954 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 955 956 set_mib: 957 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 958 ifp->if_flags &= ~IFF_ALLMULTI; 959 else 960 ifp->if_flags |= IFF_ALLMULTI; 961 sc->sc_mib_mgt.Wep_Required = 962 (sc->sc_ic.ic_flags & IEEE80211_F_WEPON) ? AWI_WEP_ON : AWI_WEP_OFF; 963 964 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 965 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 966 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 967 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 968 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 969 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 970 return error; 971 } 972 return 0; 973 } 974 975 /* XXX should be moved to if_ieee80211subr.c ? */ 976 static int 977 awi_media_rate2opt(struct awi_softc *sc, int rate) 978 { 979 int mword; 980 981 mword = 0; 982 switch (rate & IEEE80211_RATE_VAL) { 983 case 2: 984 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 985 mword = IFM_IEEE80211_FH1; 986 else 987 mword = IFM_IEEE80211_DS1; 988 break; 989 case 4: 990 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 991 mword = IFM_IEEE80211_FH2; 992 else 993 mword = IFM_IEEE80211_DS2; 994 break; 995 case 11: 996 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 997 mword = IFM_IEEE80211_DS5; 998 break; 999 case 22: 1000 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS) 1001 mword = IFM_IEEE80211_DS11; 1002 break; 1003 } 1004 return mword; 1005 } 1006 1007 static int 1008 awi_media_opt2rate(struct awi_softc *sc, int opt) 1009 { 1010 int rate; 1011 1012 rate = 0; 1013 switch (IFM_SUBTYPE(opt)) { 1014 case IFM_IEEE80211_FH1: 1015 case IFM_IEEE80211_FH2: 1016 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 1017 return 0; 1018 break; 1019 case IFM_IEEE80211_DS1: 1020 case IFM_IEEE80211_DS2: 1021 case IFM_IEEE80211_DS5: 1022 case IFM_IEEE80211_DS11: 1023 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_DS) 1024 return 0; 1025 break; 1026 } 1027 1028 switch (IFM_SUBTYPE(opt)) { 1029 case IFM_IEEE80211_FH1: 1030 case IFM_IEEE80211_DS1: 1031 rate = 2; 1032 break; 1033 case IFM_IEEE80211_FH2: 1034 case IFM_IEEE80211_DS2: 1035 rate = 4; 1036 break; 1037 case IFM_IEEE80211_DS5: 1038 rate = 11; 1039 break; 1040 case IFM_IEEE80211_DS11: 1041 rate = 22; 1042 break; 1043 } 1044 return rate; 1045 } 1046 1047 static void 1048 awi_rx_int(struct awi_softc *sc) 1049 { 1050 struct ifnet *ifp = &sc->sc_ic.ic_if; 1051 u_int8_t state, rate, rssi; 1052 u_int16_t len; 1053 u_int32_t frame, next, rstamp, rxoff; 1054 struct mbuf *m; 1055 1056 rxoff = sc->sc_rxdoff; 1057 for (;;) { 1058 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1059 if (state & AWI_RXD_ST_OWN) 1060 break; 1061 if (!(state & AWI_RXD_ST_CONSUMED)) { 1062 if (sc->sc_substate != AWI_ST_NONE) 1063 goto rx_next; 1064 if (state & AWI_RXD_ST_RXERROR) { 1065 ifp->if_ierrors++; 1066 goto rx_next; 1067 } 1068 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1069 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1070 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1071 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1072 0x7fff; 1073 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1074 m = awi_devget(sc, frame, len); 1075 if (m == NULL) { 1076 ifp->if_ierrors++; 1077 goto rx_next; 1078 } 1079 if (state & AWI_RXD_ST_LF) { 1080 /* TODO check my bss */ 1081 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1082 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1083 sc->sc_rx_timer = 10; 1084 ifp->if_timer = 1; 1085 } 1086 if ((ifp->if_flags & IFF_DEBUG) && 1087 (ifp->if_flags & IFF_LINK2)) 1088 ieee80211_dump_pkt(m->m_data, m->m_len, 1089 rate / 5, rssi); 1090 if ((ifp->if_flags & IFF_LINK0) || 1091 sc->sc_adhoc_ap) 1092 m = awi_ether_modcap(sc, m); 1093 if (m == NULL) 1094 ifp->if_ierrors++; 1095 else 1096 ieee80211_input(ifp, m, rssi, rstamp); 1097 } else 1098 sc->sc_rxpend = m; 1099 rx_next: 1100 state |= AWI_RXD_ST_CONSUMED; 1101 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1102 } 1103 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1104 if (next & AWI_RXD_NEXT_LAST) 1105 break; 1106 /* make sure the next pointer is correct */ 1107 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1108 break; 1109 state |= AWI_RXD_ST_OWN; 1110 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1111 rxoff = next & 0x7fff; 1112 } 1113 sc->sc_rxdoff = rxoff; 1114 } 1115 1116 static void 1117 awi_tx_int(struct awi_softc *sc) 1118 { 1119 struct ifnet *ifp = &sc->sc_ic.ic_if; 1120 u_int8_t flags; 1121 1122 while (sc->sc_txdone != sc->sc_txnext) { 1123 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1124 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1125 break; 1126 if (flags & AWI_TXD_ST_ERROR) 1127 ifp->if_oerrors++; 1128 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1129 0x7fff; 1130 } 1131 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1132 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1133 sc->sc_tx_timer = 0; 1134 ifp->if_flags &= ~IFF_OACTIVE; 1135 awi_start(ifp); 1136 } 1137 1138 static struct mbuf * 1139 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1140 { 1141 struct ifnet *ifp = &sc->sc_ic.ic_if; 1142 struct mbuf *m; 1143 struct mbuf *top, **mp; 1144 u_int tlen; 1145 1146 top = sc->sc_rxpend; 1147 mp = ⊤ 1148 if (top != NULL) { 1149 sc->sc_rxpend = NULL; 1150 top->m_pkthdr.len += len; 1151 m = top; 1152 while (*mp != NULL) { 1153 m = *mp; 1154 mp = &m->m_next; 1155 } 1156 if (m->m_flags & M_EXT) 1157 tlen = m->m_ext.ext_size; 1158 else if (m->m_flags & M_PKTHDR) 1159 tlen = MHLEN; 1160 else 1161 tlen = MLEN; 1162 tlen -= m->m_len; 1163 if (tlen > len) 1164 tlen = len; 1165 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1166 off += tlen; 1167 len -= tlen; 1168 } 1169 1170 while (len > 0) { 1171 if (top == NULL) { 1172 MGETHDR(m, M_DONTWAIT, MT_DATA); 1173 if (m == NULL) 1174 return NULL; 1175 m->m_pkthdr.rcvif = ifp; 1176 m->m_pkthdr.len = len; 1177 m->m_len = MHLEN; 1178 m->m_flags |= M_HASFCS; 1179 } else { 1180 MGET(m, M_DONTWAIT, MT_DATA); 1181 if (m == NULL) { 1182 m_freem(top); 1183 return NULL; 1184 } 1185 m->m_len = MLEN; 1186 } 1187 if (len >= MINCLSIZE) { 1188 MCLGET(m, M_DONTWAIT); 1189 if (m->m_flags & M_EXT) 1190 m->m_len = m->m_ext.ext_size; 1191 } 1192 if (top == NULL) { 1193 int hdrlen = sizeof(struct ieee80211_frame) + 1194 sizeof(struct llc); 1195 caddr_t newdata = (caddr_t) 1196 ALIGN(m->m_data + hdrlen) - hdrlen; 1197 m->m_len -= newdata - m->m_data; 1198 m->m_data = newdata; 1199 } 1200 if (m->m_len > len) 1201 m->m_len = len; 1202 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1203 off += m->m_len; 1204 len -= m->m_len; 1205 *mp = m; 1206 mp = &m->m_next; 1207 } 1208 return top; 1209 } 1210 1211 /* 1212 * Initialize hardware and start firmware to accept commands. 1213 * Called everytime after power on firmware. 1214 */ 1215 1216 static int 1217 awi_hw_init(struct awi_softc *sc) 1218 { 1219 u_int8_t status; 1220 u_int16_t intmask; 1221 int i, error; 1222 1223 sc->sc_enab_intr = 0; 1224 sc->sc_invalid = 0; /* XXX: really? */ 1225 awi_drvstate(sc, AWI_DRV_RESET); 1226 1227 /* reset firmware */ 1228 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1229 DELAY(100); 1230 awi_write_1(sc, AWI_SELFTEST, 0); 1231 awi_write_1(sc, AWI_CMD, 0); 1232 awi_write_1(sc, AWI_BANNER, 0); 1233 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1234 DELAY(100); 1235 1236 /* wait for selftest completion */ 1237 for (i = 0; ; i++) { 1238 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1239 printf("%s: failed to complete selftest (timeout)\n", 1240 sc->sc_dev.dv_xname); 1241 return ENXIO; 1242 } 1243 status = awi_read_1(sc, AWI_SELFTEST); 1244 if ((status & 0xf0) == 0xf0) 1245 break; 1246 if (sc->sc_cansleep) { 1247 sc->sc_sleep_cnt++; 1248 (void)tsleep(sc, PWAIT, "awitst", 1); 1249 sc->sc_sleep_cnt--; 1250 } else { 1251 DELAY(1000*1000/hz); 1252 } 1253 } 1254 if (status != AWI_SELFTEST_PASSED) { 1255 printf("%s: failed to complete selftest (code %x)\n", 1256 sc->sc_dev.dv_xname, status); 1257 return ENXIO; 1258 } 1259 1260 /* check banner to confirm firmware write it */ 1261 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1262 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1263 printf("%s: failed to complete selftest (bad banner)\n", 1264 sc->sc_dev.dv_xname); 1265 for (i = 0; i < AWI_BANNER_LEN; i++) 1266 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1267 printf("\n"); 1268 return ENXIO; 1269 } 1270 1271 /* initializing interrupt */ 1272 sc->sc_enab_intr = 1; 1273 error = awi_intr_lock(sc); 1274 if (error) 1275 return error; 1276 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1277 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1278 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1279 awi_write_1(sc, AWI_INTMASK2, 0); 1280 awi_write_1(sc, AWI_INTSTAT, 0); 1281 awi_write_1(sc, AWI_INTSTAT2, 0); 1282 awi_intr_unlock(sc); 1283 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1284 1285 /* issuing interface test command */ 1286 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1287 if (error) { 1288 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1289 if (error == ENXIO) 1290 printf(" (no hardware)\n"); 1291 else if (error != EWOULDBLOCK) 1292 printf(" (error %d)\n", error); 1293 else if (sc->sc_cansleep) 1294 printf(" (lost interrupt)\n"); 1295 else 1296 printf(" (command timeout)\n"); 1297 } 1298 return error; 1299 } 1300 1301 /* 1302 * Extract the factory default MIB value from firmware and assign the driver 1303 * default value. 1304 * Called once at attaching the interface. 1305 */ 1306 1307 static int 1308 awi_init_mibs(struct awi_softc *sc) 1309 { 1310 int i, error; 1311 struct awi_chanset *cs; 1312 1313 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1314 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1315 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1316 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1317 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1318 printf("%s: failed to get default mib value (error %d)\n", 1319 sc->sc_dev.dv_xname, error); 1320 return error; 1321 } 1322 1323 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1324 for (cs = awi_chanset; ; cs++) { 1325 if (cs->cs_type == 0) { 1326 printf("%s: failed to set available channel\n", 1327 sc->sc_dev.dv_xname); 1328 return ENXIO; 1329 } 1330 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1331 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1332 break; 1333 } 1334 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1335 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1336 setbit(sc->sc_ic.ic_chan_avail, 1337 IEEE80211_FH_CHAN(i % 3 + 1, i)); 1338 /* 1339 * According to the IEEE 802.11 specification, 1340 * hop pattern parameter for FH phy should be 1341 * incremented by 3 for given hop chanset, i.e., 1342 * the chanset parameter is calculated for given 1343 * hop patter. However, BayStack 650 Access Points 1344 * apparently use fixed hop chanset parameter value 1345 * 1 for any hop pattern. So we also try this 1346 * combination of hop chanset and pattern. 1347 */ 1348 setbit(sc->sc_ic.ic_chan_avail, 1349 IEEE80211_FH_CHAN(1, i)); 1350 } 1351 } else { 1352 for (i = cs->cs_min; i <= cs->cs_max; i++) 1353 setbit(sc->sc_ic.ic_chan_avail, i); 1354 } 1355 sc->sc_cur_chan = cs->cs_def; 1356 1357 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1358 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1359 sc->sc_mib_local.Fragmentation_Dis = 1; 1360 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1361 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1362 1363 /* allocate buffers */ 1364 sc->sc_txbase = AWI_BUFFERS; 1365 sc->sc_txend = sc->sc_txbase + 1366 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1367 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1368 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1369 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1370 sc->sc_txend - sc->sc_txbase); 1371 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1372 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1373 AWI_BUFFERS_END - sc->sc_txend); 1374 sc->sc_mib_local.Network_Mode = 1; 1375 sc->sc_mib_local.Acting_as_AP = 0; 1376 return 0; 1377 } 1378 1379 static int 1380 awi_chan_check(void *arg, u_char *chanreq) 1381 { 1382 struct awi_softc *sc = arg; 1383 int i; 1384 struct awi_chanset *cs; 1385 u_char chanlist[(IEEE80211_CHAN_MAX+1)/NBBY]; 1386 1387 for (cs = awi_chanset; cs->cs_type != 0; cs++) { 1388 if (cs->cs_type != sc->sc_mib_phy.IEEE_PHY_Type) 1389 continue; 1390 memset(chanlist, 0, sizeof(chanlist)); 1391 for (i = 0; ; i++) { 1392 if (i == IEEE80211_CHAN_MAX) { 1393 sc->sc_mib_phy.aCurrent_Reg_Domain = 1394 cs->cs_region; 1395 memcpy(sc->sc_ic.ic_chan_avail, chanlist, 1396 sizeof(sc->sc_ic.ic_chan_avail)); 1397 sc->sc_ic.ic_bss.bs_chan = cs->cs_def; 1398 sc->sc_cur_chan = cs->cs_def; 1399 return 0; 1400 } 1401 if (i >= cs->cs_min && i <= cs->cs_max) 1402 setbit(chanlist, i); 1403 else if (isset(chanreq, i)) 1404 break; 1405 } 1406 } 1407 return EINVAL; 1408 } 1409 1410 static int 1411 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1412 { 1413 int error; 1414 u_int8_t size, *ptr; 1415 1416 switch (mib) { 1417 case AWI_MIB_LOCAL: 1418 ptr = (u_int8_t *)&sc->sc_mib_local; 1419 size = sizeof(sc->sc_mib_local); 1420 break; 1421 case AWI_MIB_ADDR: 1422 ptr = (u_int8_t *)&sc->sc_mib_addr; 1423 size = sizeof(sc->sc_mib_addr); 1424 break; 1425 case AWI_MIB_MAC: 1426 ptr = (u_int8_t *)&sc->sc_mib_mac; 1427 size = sizeof(sc->sc_mib_mac); 1428 break; 1429 case AWI_MIB_STAT: 1430 ptr = (u_int8_t *)&sc->sc_mib_stat; 1431 size = sizeof(sc->sc_mib_stat); 1432 break; 1433 case AWI_MIB_MGT: 1434 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1435 size = sizeof(sc->sc_mib_mgt); 1436 break; 1437 case AWI_MIB_PHY: 1438 ptr = (u_int8_t *)&sc->sc_mib_phy; 1439 size = sizeof(sc->sc_mib_phy); 1440 break; 1441 default: 1442 return EINVAL; 1443 } 1444 if (sc->sc_cmd_inprog) { 1445 if ((error = awi_cmd_wait(sc)) != 0) { 1446 if (error == EWOULDBLOCK) 1447 DPRINTF(("awi_mib: cmd %d inprog", 1448 sc->sc_cmd_inprog)); 1449 return error; 1450 } 1451 } 1452 sc->sc_cmd_inprog = cmd; 1453 if (cmd == AWI_CMD_SET_MIB) 1454 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1455 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1456 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1457 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1458 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1459 return error; 1460 if (cmd == AWI_CMD_GET_MIB) { 1461 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1462 #ifdef AWI_DEBUG 1463 if (awi_debug) { 1464 int i; 1465 1466 printf("awi_mib: #%d:", mib); 1467 for (i = 0; i < size; i++) 1468 printf(" %02x", ptr[i]); 1469 printf("\n"); 1470 } 1471 #endif 1472 } 1473 return 0; 1474 } 1475 1476 static int 1477 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1478 { 1479 u_int8_t status; 1480 int error = 0; 1481 #ifdef AWI_DEBUG 1482 static const char *cmdname[] = { 1483 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1484 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1485 }; 1486 #endif 1487 1488 #ifdef AWI_DEBUG 1489 if (awi_debug > 1) { 1490 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1491 printf("awi_cmd: #%d", cmd); 1492 else 1493 printf("awi_cmd: %s", cmdname[cmd]); 1494 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1495 } 1496 #endif 1497 sc->sc_cmd_inprog = cmd; 1498 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1499 awi_write_1(sc, AWI_CMD, cmd); 1500 if (wflag == AWI_NOWAIT) 1501 return EINPROGRESS; 1502 if ((error = awi_cmd_wait(sc)) != 0) 1503 return error; 1504 status = awi_read_1(sc, AWI_CMD_STATUS); 1505 awi_write_1(sc, AWI_CMD, 0); 1506 switch (status) { 1507 case AWI_STAT_OK: 1508 break; 1509 case AWI_STAT_BADPARM: 1510 return EINVAL; 1511 default: 1512 printf("%s: command %d failed %x\n", 1513 sc->sc_dev.dv_xname, cmd, status); 1514 return ENXIO; 1515 } 1516 return 0; 1517 } 1518 1519 static int 1520 awi_cmd_wait(struct awi_softc *sc) 1521 { 1522 int i, error = 0; 1523 1524 i = 0; 1525 while (sc->sc_cmd_inprog) { 1526 if (sc->sc_invalid) 1527 return ENXIO; 1528 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1529 printf("%s: failed to access hardware\n", 1530 sc->sc_dev.dv_xname); 1531 sc->sc_invalid = 1; 1532 return ENXIO; 1533 } 1534 if (sc->sc_cansleep) { 1535 sc->sc_sleep_cnt++; 1536 error = tsleep(sc, PWAIT, "awicmd", 1537 AWI_CMD_TIMEOUT*hz/1000); 1538 sc->sc_sleep_cnt--; 1539 } else { 1540 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1541 awi_cmd_done(sc); 1542 break; 1543 } 1544 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1545 error = EWOULDBLOCK; 1546 else 1547 DELAY(10); 1548 } 1549 if (error) 1550 break; 1551 } 1552 if (error) { 1553 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1554 sc->sc_cmd_inprog, error)); 1555 } 1556 return error; 1557 } 1558 1559 static void 1560 awi_cmd_done(struct awi_softc *sc) 1561 { 1562 u_int8_t cmd, status; 1563 1564 status = awi_read_1(sc, AWI_CMD_STATUS); 1565 if (status == AWI_STAT_IDLE) 1566 return; /* stray interrupt */ 1567 1568 cmd = sc->sc_cmd_inprog; 1569 sc->sc_cmd_inprog = 0; 1570 wakeup(sc); 1571 awi_write_1(sc, AWI_CMD, 0); 1572 1573 if (status != AWI_STAT_OK) { 1574 printf("%s: command %d failed %x\n", 1575 sc->sc_dev.dv_xname, cmd, status); 1576 sc->sc_substate = AWI_ST_NONE; 1577 return; 1578 } 1579 if (sc->sc_substate != AWI_ST_NONE) 1580 (void)ieee80211_new_state(&sc->sc_ic.ic_if, sc->sc_nstate, -1); 1581 } 1582 1583 static int 1584 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1585 { 1586 u_int32_t txd, ntxd, frame; 1587 1588 txd = sc->sc_txnext; 1589 frame = txd + AWI_TXD_SIZE; 1590 if (frame + len > sc->sc_txend) 1591 frame = sc->sc_txbase; 1592 ntxd = frame + len; 1593 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1594 ntxd = sc->sc_txbase; 1595 *framep = frame; 1596 *ntxdp = ntxd; 1597 /* 1598 * Determine if there are any room in ring buffer. 1599 * --- send wait, === new data, +++ conflict (ENOBUFS) 1600 * base........................end 1601 * done----txd=====ntxd OK 1602 * --txd=====done++++ntxd-- full 1603 * --txd=====ntxd done-- OK 1604 * ==ntxd done----txd=== OK 1605 * ==done++++ntxd----txd=== full 1606 * ++ntxd txd=====done++ full 1607 */ 1608 if (txd < ntxd) { 1609 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1610 return ENOBUFS; 1611 } else { 1612 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1613 return ENOBUFS; 1614 } 1615 return 0; 1616 } 1617 1618 static int 1619 awi_lock(struct awi_softc *sc) 1620 { 1621 int error = 0; 1622 1623 if (curproc == NULL) { 1624 /* 1625 * XXX 1626 * Though driver ioctl should be called with context, 1627 * KAME ipv6 stack calls ioctl in interrupt for now. 1628 * We simply abort the request if there are other 1629 * ioctl requests in progress. 1630 */ 1631 if (sc->sc_busy) { 1632 return EWOULDBLOCK; 1633 if (sc->sc_invalid) 1634 return ENXIO; 1635 } 1636 sc->sc_busy = 1; 1637 sc->sc_cansleep = 0; 1638 return 0; 1639 } 1640 while (sc->sc_busy) { 1641 if (sc->sc_invalid) 1642 return ENXIO; 1643 sc->sc_sleep_cnt++; 1644 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1645 sc->sc_sleep_cnt--; 1646 if (error) 1647 return error; 1648 } 1649 sc->sc_busy = 1; 1650 sc->sc_cansleep = 1; 1651 return 0; 1652 } 1653 1654 static void 1655 awi_unlock(struct awi_softc *sc) 1656 { 1657 sc->sc_busy = 0; 1658 sc->sc_cansleep = 0; 1659 if (sc->sc_sleep_cnt) 1660 wakeup(sc); 1661 } 1662 1663 static int 1664 awi_intr_lock(struct awi_softc *sc) 1665 { 1666 u_int8_t status; 1667 int i, retry; 1668 1669 status = 1; 1670 for (retry = 0; retry < 10; retry++) { 1671 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1672 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1673 break; 1674 DELAY(5); 1675 } 1676 if (status != 0) 1677 break; 1678 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1679 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1680 break; 1681 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1682 } 1683 if (status != 0) { 1684 printf("%s: failed to lock interrupt\n", 1685 sc->sc_dev.dv_xname); 1686 return ENXIO; 1687 } 1688 return 0; 1689 } 1690 1691 static void 1692 awi_intr_unlock(struct awi_softc *sc) 1693 { 1694 1695 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1696 } 1697 1698 static int 1699 awi_newstate(void *arg, enum ieee80211_state nstate) 1700 { 1701 struct awi_softc *sc = arg; 1702 struct ieee80211com *ic = &sc->sc_ic; 1703 struct ieee80211_bss *bs = &ic->ic_bss; 1704 struct ifnet *ifp = &ic->ic_if; 1705 int error; 1706 u_int8_t newmode; 1707 enum ieee80211_state ostate; 1708 #ifdef AWI_DEBUG 1709 static const char *stname[] = 1710 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1711 static const char *substname[] = 1712 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1713 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1714 #endif /* AWI_DEBUG */ 1715 1716 ostate = ic->ic_state; 1717 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1718 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1719 1720 /* set LED */ 1721 switch (nstate) { 1722 case IEEE80211_S_INIT: 1723 awi_drvstate(sc, AWI_DRV_RESET); 1724 break; 1725 case IEEE80211_S_SCAN: 1726 if (ic->ic_flags & IEEE80211_F_ADHOC) 1727 awi_drvstate(sc, AWI_DRV_ADHSC); 1728 else 1729 awi_drvstate(sc, AWI_DRV_INFSY); 1730 break; 1731 case IEEE80211_S_AUTH: 1732 awi_drvstate(sc, AWI_DRV_INFSY); 1733 break; 1734 case IEEE80211_S_ASSOC: 1735 awi_drvstate(sc, AWI_DRV_INFAUTH); 1736 break; 1737 case IEEE80211_S_RUN: 1738 if (ic->ic_flags & IEEE80211_F_ADHOC) 1739 awi_drvstate(sc, AWI_DRV_ADHSY); 1740 else 1741 awi_drvstate(sc, AWI_DRV_INFASSOC); 1742 break; 1743 } 1744 1745 if (nstate == IEEE80211_S_INIT) { 1746 sc->sc_substate = AWI_ST_NONE; 1747 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1748 return 0; 1749 } 1750 1751 /* state transition */ 1752 if (nstate == IEEE80211_S_SCAN) { 1753 /* SCAN substate */ 1754 if (sc->sc_substate == AWI_ST_NONE) { 1755 sc->sc_nstate = nstate; /* next state in transition */ 1756 sc->sc_substate = AWI_ST_SCAN_INIT; 1757 } 1758 switch (sc->sc_substate) { 1759 case AWI_ST_SCAN_INIT: 1760 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1761 switch (ostate) { 1762 case IEEE80211_S_RUN: 1763 /* beacon miss */ 1764 if (ifp->if_flags & IFF_DEBUG) 1765 printf("%s: no recent beacons from %s;" 1766 " rescanning\n", 1767 ifp->if_xname, 1768 ether_sprintf(ic->ic_bss.bs_bssid)); 1769 /* FALLTHRU */ 1770 case IEEE80211_S_AUTH: 1771 case IEEE80211_S_ASSOC: 1772 /* timeout restart scan */ 1773 ieee80211_free_scan(ifp); 1774 /* FALLTHRU */ 1775 case IEEE80211_S_INIT: 1776 ic->ic_flags |= IEEE80211_F_ASCAN; 1777 ic->ic_scan_timer = 0; 1778 /* FALLTHRU */ 1779 case IEEE80211_S_SCAN: 1780 /* scan next */ 1781 break; 1782 } 1783 if (ic->ic_flags & IEEE80211_F_ASCAN) 1784 newmode = AWI_SCAN_ACTIVE; 1785 else 1786 newmode = AWI_SCAN_PASSIVE; 1787 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1788 sc->sc_mib_mgt.aScan_Mode = newmode; 1789 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1790 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1791 break; 1792 } 1793 /* FALLTHRU */ 1794 case AWI_ST_SCAN_SETMIB: 1795 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1796 if (sc->sc_cmd_inprog) { 1797 if ((error = awi_cmd_wait(sc)) != 0) 1798 break; 1799 } 1800 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1801 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1802 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1803 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1804 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1805 awi_write_1(sc, AWI_CA_SCAN_SET, 1806 IEEE80211_FH_CHANSET(bs->bs_chan)); 1807 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1808 IEEE80211_FH_CHANPAT(bs->bs_chan)); 1809 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1810 } else { 1811 awi_write_1(sc, AWI_CA_SCAN_SET, bs->bs_chan); 1812 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1813 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1814 } 1815 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1816 sc->sc_cur_chan = bs->bs_chan; 1817 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1818 != 0) 1819 break; 1820 /* FALLTHRU */ 1821 case AWI_ST_SCAN_SCCMD: 1822 if (ic->ic_scan_timer == 0) 1823 ic->ic_scan_timer = 1824 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1825 IEEE80211_ASCAN_WAIT : IEEE80211_PSCAN_WAIT; 1826 ifp->if_timer = 1; 1827 ic->ic_state = nstate; 1828 sc->sc_substate = AWI_ST_NONE; 1829 error = EINPROGRESS; 1830 break; 1831 default: 1832 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1833 stname[nstate], substname[sc->sc_substate])); 1834 sc->sc_substate = AWI_ST_NONE; 1835 error = EIO; 1836 break; 1837 } 1838 return error; 1839 } 1840 1841 if (ostate == IEEE80211_S_SCAN) { 1842 /* set SSID and channel */ 1843 /* substate */ 1844 if (sc->sc_substate == AWI_ST_NONE) { 1845 sc->sc_nstate = nstate; /* next state in transition */ 1846 sc->sc_substate = AWI_ST_SUB_INIT; 1847 } 1848 switch (sc->sc_substate) { 1849 case AWI_ST_SUB_INIT: 1850 sc->sc_substate = AWI_ST_SUB_SETSS; 1851 memcpy(&sc->sc_mib_mgt.aCurrent_BSS_ID, bs->bs_bssid, 1852 IEEE80211_ADDR_LEN); 1853 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 1854 AWI_ESS_ID_SIZE); 1855 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 1856 IEEE80211_ELEMID_SSID; 1857 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = bs->bs_esslen; 1858 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 1859 bs->bs_essid, bs->bs_esslen); 1860 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 1861 bs->bs_intval); 1862 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 1863 AWI_NOWAIT)) != 0) 1864 break; 1865 /* FALLTHRU */ 1866 case AWI_ST_SUB_SETSS: 1867 sc->sc_substate = AWI_ST_SUB_SYNC; 1868 if (sc->sc_cmd_inprog) { 1869 if ((error = awi_cmd_wait(sc)) != 0) 1870 break; 1871 } 1872 sc->sc_cmd_inprog = AWI_CMD_SYNC; 1873 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1874 awi_write_1(sc, AWI_CA_SYNC_SET, 1875 IEEE80211_FH_CHANSET(bs->bs_chan)); 1876 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 1877 IEEE80211_FH_CHANPAT(bs->bs_chan)); 1878 awi_write_1(sc, AWI_CA_SYNC_IDX, 1879 bs->bs_fhindex); 1880 awi_write_2(sc, AWI_CA_SYNC_DWELL, 1881 bs->bs_fhdwell); 1882 } else { 1883 awi_write_1(sc, AWI_CA_SYNC_SET, bs->bs_chan); 1884 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 1885 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 1886 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 1887 } 1888 if ((ic->ic_flags & IEEE80211_F_SIBSS) && 1889 !sc->sc_no_bssid) 1890 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 1891 else 1892 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 1893 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 1894 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 1895 bs->bs_tstamp, 8); 1896 awi_write_4(sc, AWI_CA_SYNC_REFTIME, bs->bs_rstamp); 1897 sc->sc_cur_chan = bs->bs_chan; 1898 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 1899 != 0) 1900 break; 1901 /* FALLTHRU */ 1902 case AWI_ST_SUB_SYNC: 1903 sc->sc_substate = AWI_ST_NONE; 1904 if (ic->ic_flags & IEEE80211_F_SIBSS) { 1905 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 1906 AWI_MIB_MGT, AWI_WAIT)) != 0) 1907 break; 1908 memcpy(bs->bs_bssid, 1909 &sc->sc_mib_mgt.aCurrent_BSS_ID, 1910 IEEE80211_ADDR_LEN); 1911 } else { 1912 if (nstate == IEEE80211_S_RUN) { 1913 sc->sc_rx_timer = 10; 1914 ifp->if_timer = 1; 1915 } 1916 } 1917 error = 0; 1918 break; 1919 default: 1920 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1921 stname[nstate], substname[sc->sc_substate])); 1922 sc->sc_substate = AWI_ST_NONE; 1923 error = EIO; 1924 break; 1925 } 1926 return error; 1927 } 1928 1929 sc->sc_substate = AWI_ST_NONE; 1930 1931 return 0; 1932 } 1933 1934 static struct mbuf * 1935 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 1936 { 1937 struct ieee80211com *ic = &sc->sc_ic; 1938 struct ieee80211_bss *bs = &ic->ic_bss; 1939 struct ether_header *eh; 1940 struct ieee80211_frame *wh; 1941 1942 if (m->m_len < sizeof(struct ether_header)) { 1943 m = m_pullup(m, sizeof(struct ether_header)); 1944 if (m == NULL) 1945 return NULL; 1946 } 1947 eh = mtod(m, struct ether_header *); 1948 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 1949 if (m == NULL) 1950 return NULL; 1951 wh = mtod(m, struct ieee80211_frame *); 1952 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 1953 *(u_int16_t *)wh->i_dur = 0; 1954 *(u_int16_t *)wh->i_seq = 1955 htole16(bs->bs_txseq << IEEE80211_SEQ_SEQ_SHIFT); 1956 bs->bs_txseq++; 1957 if (ic->ic_flags & IEEE80211_F_ADHOC) { 1958 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1959 if (sc->sc_adhoc_ap) 1960 memcpy(wh->i_addr1, bs->bs_macaddr, IEEE80211_ADDR_LEN); 1961 else 1962 memcpy(wh->i_addr1, eh->ether_dhost, 1963 IEEE80211_ADDR_LEN); 1964 memcpy(wh->i_addr2, eh->ether_shost, IEEE80211_ADDR_LEN); 1965 memcpy(wh->i_addr3, bs->bs_bssid, IEEE80211_ADDR_LEN); 1966 } else { 1967 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 1968 memcpy(wh->i_addr1, bs->bs_bssid, IEEE80211_ADDR_LEN); 1969 memcpy(wh->i_addr2, eh->ether_shost, IEEE80211_ADDR_LEN); 1970 memcpy(wh->i_addr3, eh->ether_dhost, IEEE80211_ADDR_LEN); 1971 } 1972 return m; 1973 } 1974 1975 static struct mbuf * 1976 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 1977 { 1978 struct ieee80211com *ic = &sc->sc_ic; 1979 struct ether_header eh; 1980 struct ieee80211_frame wh; 1981 struct llc *llc; 1982 1983 if (m->m_len < sizeof(wh) + sizeof(eh)) { 1984 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 1985 if (m == NULL) 1986 return NULL; 1987 } 1988 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 1989 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 1990 return m; 1991 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 1992 m_adj(m, sizeof(eh) - sizeof(*llc)); 1993 if (ic->ic_flags & IEEE80211_F_ADHOC) 1994 memcpy(wh.i_addr2, eh.ether_shost, IEEE80211_ADDR_LEN); 1995 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 1996 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 1997 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 1998 llc->llc_control = LLC_UI; 1999 llc->llc_snap.org_code[0] = 0; 2000 llc->llc_snap.org_code[1] = 0; 2001 llc->llc_snap.org_code[2] = 0; 2002 llc->llc_snap.ether_type = eh.ether_type; 2003 return m; 2004 } 2005
Indexes created Wed Oct 22 00:09:40 GMT 2025