awi.c revision 1.45
1 /* $NetBSD: awi.c,v 1.45 2002/09/02 13:37:35 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 1.45 2002/09/02 13:37:35 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 void awi_rx_int(struct awi_softc *); 143 static void awi_tx_int(struct awi_softc *); 144 static struct mbuf *awi_devget(struct awi_softc *, u_int32_t, u_int16_t); 145 static int awi_hw_init(struct awi_softc *); 146 static int awi_init_mibs(struct awi_softc *); 147 static int awi_chan_check(void *, u_char *); 148 static int awi_mib(struct awi_softc *, u_int8_t, u_int8_t, int); 149 static int awi_cmd(struct awi_softc *, u_int8_t, int); 150 static int awi_cmd_wait(struct awi_softc *); 151 static void awi_cmd_done(struct awi_softc *); 152 static int awi_next_txd(struct awi_softc *, int, u_int32_t *, u_int32_t *); 153 static int awi_lock(struct awi_softc *); 154 static void awi_unlock(struct awi_softc *); 155 static int awi_intr_lock(struct awi_softc *); 156 static void awi_intr_unlock(struct awi_softc *); 157 static int awi_newstate(void *, enum ieee80211_state); 158 static struct mbuf *awi_ether_encap(struct awi_softc *, struct mbuf *); 159 static struct mbuf *awi_ether_modcap(struct awi_softc *, struct mbuf *); 160 161 /* unalligned little endian access */ 162 #define LE_READ_2(p) \ 163 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)) 164 #define LE_READ_4(p) \ 165 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \ 166 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)) 167 #define LE_WRITE_2(p, v) \ 168 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 169 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff))) 170 #define LE_WRITE_4(p, v) \ 171 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 172 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff)), \ 173 (((u_int8_t *)(p))[2] = (((u_int32_t)(v) >> 16) & 0xff)), \ 174 (((u_int8_t *)(p))[3] = (((u_int32_t)(v) >> 24) & 0xff))) 175 176 struct awi_chanset awi_chanset[] = { 177 /* PHY type domain min max def */ 178 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_JP, 6, 17, 6 }, 179 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_ES, 0, 26, 1 }, 180 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_FR, 0, 32, 1 }, 181 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_US, 0, 77, 1 }, 182 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_CA, 0, 77, 1 }, 183 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_EU, 0, 77, 1 }, 184 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_JP, 14, 14, 14 }, 185 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_ES, 10, 11, 10 }, 186 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_FR, 10, 13, 10 }, 187 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_US, 1, 11, 3 }, 188 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_CA, 1, 11, 3 }, 189 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_EU, 1, 13, 3 }, 190 { 0, 0 } 191 }; 192 193 #ifdef AWI_DEBUG 194 int awi_debug; 195 196 #define DPRINTF(X) if (awi_debug) printf X 197 #define DPRINTF2(X) if (awi_debug > 1) printf X 198 #else 199 #define DPRINTF(X) 200 #define DPRINTF2(X) 201 #endif 202 203 int 204 awi_attach(struct awi_softc *sc) 205 { 206 struct ieee80211com *ic = &sc->sc_ic; 207 struct ifnet *ifp = &ic->ic_if; 208 int s, i, error, nrate; 209 int mword; 210 struct ifmediareq imr; 211 212 s = splnet(); 213 sc->sc_busy = 1; 214 sc->sc_substate = AWI_ST_NONE; 215 if ((error = awi_hw_init(sc)) != 0) { 216 sc->sc_invalid = 1; 217 splx(s); 218 return error; 219 } 220 error = awi_init_mibs(sc); 221 if (error != 0) { 222 sc->sc_invalid = 1; 223 splx(s); 224 return error; 225 } 226 ifp->if_softc = sc; 227 ifp->if_flags = 228 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST | IFF_NOTRAILERS; 229 ifp->if_ioctl = awi_ioctl; 230 ifp->if_start = awi_start; 231 ifp->if_init = awi_init; 232 ifp->if_stop = awi_stop; 233 ifp->if_watchdog = awi_watchdog; 234 IFQ_SET_READY(&ifp->if_snd); 235 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 236 237 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 238 ic->ic_flags = IEEE80211_F_FH; 239 else 240 ic->ic_flags = IEEE80211_F_DS; 241 ic->ic_flags |= 242 IEEE80211_F_HASWEP | IEEE80211_F_HASIBSS | IEEE80211_F_HASHAP; 243 ic->ic_state = IEEE80211_S_INIT; 244 ic->ic_newstate = awi_newstate; 245 ic->ic_chancheck = awi_chan_check; 246 nrate = sc->sc_mib_phy.aSuprt_Data_Rates[1]; 247 memcpy(ic->ic_sup_rates, sc->sc_mib_phy.aSuprt_Data_Rates + 2, nrate); 248 memcpy(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address, IEEE80211_ADDR_LEN); 249 250 printf("%s: IEEE802.11 %s %dMbps (firmware %s)\n", 251 sc->sc_dev.dv_xname, 252 sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH ? "FH" : "DS", 253 (ic->ic_sup_rates[nrate - 1] & IEEE80211_RATE_VAL) / 2, 254 sc->sc_banner); 255 printf("%s: 802.11 address: %s\n", sc->sc_dev.dv_xname, 256 ether_sprintf(ic->ic_myaddr)); 257 258 if_attach(ifp); 259 ieee80211_ifattach(ifp); 260 261 /* probe request is handled by hardware */ 262 ic->ic_send_mgmt[IEEE80211_FC0_SUBTYPE_PROBE_REQ 263 >> IEEE80211_FC0_SUBTYPE_SHIFT] = NULL; 264 ic->ic_recv_mgmt[IEEE80211_FC0_SUBTYPE_PROBE_REQ 265 >> IEEE80211_FC0_SUBTYPE_SHIFT] = NULL; 266 267 ifmedia_init(&sc->sc_media, 0, awi_media_change, awi_media_status); 268 #define ADD(s, o) ifmedia_add(&sc->sc_media, \ 269 IFM_MAKEWORD(IFM_IEEE80211, (s), (o), 0), 0, NULL) 270 ADD(IFM_AUTO, 0); /* infra mode */ 271 ADD(IFM_AUTO, IFM_FLAG0); /* melco compat mode */ 272 ADD(IFM_AUTO, IFM_IEEE80211_ADHOC); /* IBSS mode */ 273 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 274 ADD(IFM_AUTO, IFM_IEEE80211_ADHOC | IFM_FLAG0); 275 /* lucent compat mode */ 276 ADD(IFM_AUTO, IFM_IEEE80211_HOSTAP); 277 for (i = 0; i < nrate; i++) { 278 mword = ieee80211_rate2media(ic->ic_sup_rates[i], 279 (ic->ic_flags & (IEEE80211_F_FH | IEEE80211_F_DS))); 280 if (mword == 0) 281 continue; 282 ADD(mword, 0); 283 ADD(mword, IFM_FLAG0); 284 ADD(mword, IFM_IEEE80211_ADHOC); 285 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 286 ADD(mword, IFM_IEEE80211_ADHOC | IFM_FLAG0); 287 ADD(mword, IFM_IEEE80211_HOSTAP); 288 } 289 #undef ADD 290 awi_media_status(ifp, &imr); 291 ifmedia_set(&sc->sc_media, imr.ifm_active); 292 293 if ((sc->sc_sdhook = shutdownhook_establish(awi_shutdown, sc)) == NULL) 294 printf("%s: WARNING: unable to establish shutdown hook\n", 295 sc->sc_dev.dv_xname); 296 if ((sc->sc_powerhook = powerhook_establish(awi_power, sc)) == NULL) 297 printf("%s: WARNING: unable to establish power hook\n", 298 sc->sc_dev.dv_xname); 299 sc->sc_attached = 1; 300 splx(s); 301 302 /* ready to accept ioctl */ 303 awi_unlock(sc); 304 305 return 0; 306 } 307 308 int 309 awi_detach(struct awi_softc *sc) 310 { 311 struct ifnet *ifp = &sc->sc_ic.ic_if; 312 int s; 313 314 if (!sc->sc_attached) 315 return 0; 316 317 s = splnet(); 318 sc->sc_invalid = 1; 319 awi_stop(ifp, 1); 320 while (sc->sc_sleep_cnt > 0) { 321 wakeup(sc); 322 (void)tsleep(sc, PWAIT, "awidet", 1); 323 } 324 ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY); 325 ieee80211_ifdetach(ifp); 326 if_detach(ifp); 327 shutdownhook_disestablish(sc->sc_sdhook); 328 powerhook_disestablish(sc->sc_powerhook); 329 splx(s); 330 return 0; 331 } 332 333 int 334 awi_activate(struct device *self, enum devact act) 335 { 336 struct awi_softc *sc = (struct awi_softc *)self; 337 struct ifnet *ifp = &sc->sc_ic.ic_if; 338 int s, error = 0; 339 340 s = splnet(); 341 switch (act) { 342 case DVACT_ACTIVATE: 343 error = EOPNOTSUPP; 344 break; 345 case DVACT_DEACTIVATE: 346 sc->sc_invalid = 1; 347 if_deactivate(ifp); 348 break; 349 } 350 splx(s); 351 return error; 352 } 353 354 void 355 awi_power(int why, void *arg) 356 { 357 struct awi_softc *sc = arg; 358 struct ifnet *ifp = &sc->sc_ic.ic_if; 359 int s; 360 int ocansleep; 361 362 DPRINTF(("awi_power: %d\n", why)); 363 s = splnet(); 364 ocansleep = sc->sc_cansleep; 365 sc->sc_cansleep = 0; 366 switch (why) { 367 case PWR_SUSPEND: 368 case PWR_STANDBY: 369 awi_stop(ifp, 1); 370 break; 371 case PWR_RESUME: 372 if (ifp->if_flags & IFF_UP) { 373 awi_init(ifp); 374 (void)awi_intr(sc); /* make sure */ 375 } 376 break; 377 case PWR_SOFTSUSPEND: 378 case PWR_SOFTSTANDBY: 379 case PWR_SOFTRESUME: 380 break; 381 } 382 sc->sc_cansleep = ocansleep; 383 splx(s); 384 } 385 386 void 387 awi_shutdown(void *arg) 388 { 389 struct awi_softc *sc = arg; 390 struct ifnet *ifp = &sc->sc_ic.ic_if; 391 392 if (sc->sc_attached) 393 awi_stop(ifp, 1); 394 } 395 396 int 397 awi_intr(void *arg) 398 { 399 struct awi_softc *sc = arg; 400 u_int16_t status; 401 int error, handled = 0, ocansleep; 402 #ifdef AWI_DEBUG 403 static const char *intname[] = { 404 "CMD", "RX", "TX", "SCAN_CMPLT", 405 "CFP_START", "DTIM", "CFP_ENDING", "GROGGY", 406 "TXDATA", "TXBCAST", "TXPS", "TXCF", 407 "TXMGT", "#13", "RXDATA", "RXMGT" 408 }; 409 #endif 410 411 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) 412 return 0; 413 414 am79c930_gcr_setbits(&sc->sc_chip, 415 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 416 awi_write_1(sc, AWI_DIS_PWRDN, 1); 417 ocansleep = sc->sc_cansleep; 418 sc->sc_cansleep = 0; 419 420 for (;;) { 421 if ((error = awi_intr_lock(sc)) != 0) 422 break; 423 status = awi_read_1(sc, AWI_INTSTAT); 424 awi_write_1(sc, AWI_INTSTAT, 0); 425 awi_write_1(sc, AWI_INTSTAT, 0); 426 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 427 awi_write_1(sc, AWI_INTSTAT2, 0); 428 DELAY(10); 429 awi_intr_unlock(sc); 430 if (!sc->sc_cmd_inprog) 431 status &= ~AWI_INT_CMD; /* make sure */ 432 if (status == 0) 433 break; 434 #ifdef AWI_DEBUG 435 if (awi_debug > 1) { 436 int i; 437 438 printf("awi_intr: status 0x%04x", status); 439 for (i = 0; i < sizeof(intname)/sizeof(intname[0]); 440 i++) { 441 if (status & (1 << i)) 442 printf(" %s", intname[i]); 443 } 444 printf("\n"); 445 } 446 #endif 447 handled = 1; 448 if (status & AWI_INT_RX) 449 awi_rx_int(sc); 450 if (status & AWI_INT_TX) 451 awi_tx_int(sc); 452 if (status & AWI_INT_CMD) 453 awi_cmd_done(sc); 454 if (status & AWI_INT_SCAN_CMPLT) { 455 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN && 456 sc->sc_substate == AWI_ST_NONE) 457 ieee80211_next_scan(&sc->sc_ic.ic_if); 458 } 459 } 460 sc->sc_cansleep = ocansleep; 461 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 462 awi_write_1(sc, AWI_DIS_PWRDN, 0); 463 return handled; 464 } 465 466 static int 467 awi_init(struct ifnet *ifp) 468 { 469 struct awi_softc *sc = ifp->if_softc; 470 struct ieee80211com *ic = &sc->sc_ic; 471 struct ieee80211_bss *bs = &ic->ic_bss; 472 int i, error; 473 474 DPRINTF(("awi_init: enabled=%d\n", sc->sc_enabled)); 475 if (sc->sc_enabled) { 476 awi_stop(ifp, 0); 477 } else { 478 if (sc->sc_enable) 479 (*sc->sc_enable)(sc); 480 sc->sc_enabled = 1; 481 if ((error = awi_hw_init(sc)) != 0) { 482 awi_stop(ifp, 1); 483 return error; 484 } 485 } 486 ic->ic_state = IEEE80211_S_INIT; 487 488 sc->sc_mib_local.Network_Mode = 489 (ic->ic_flags & IEEE80211_F_ADHOC) ? 0 : 1; 490 sc->sc_mib_local.Acting_as_AP = 491 (ic->ic_flags & IEEE80211_F_HOSTAP) ? 1 : 0; 492 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 493 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 494 sc->sc_mib_mac.aDesired_ESS_ID[1] = sc->sc_ic.ic_des_esslen; 495 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], sc->sc_ic.ic_des_essid, 496 sc->sc_ic.ic_des_esslen); 497 498 if ((error = awi_mode_init(sc)) != 0) { 499 DPRINTF(("awi_init: awi_mode_init failed %d\n", error)); 500 awi_stop(ifp, 1); 501 return error; 502 } 503 504 /* start transmitter */ 505 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 506 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 507 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 508 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 509 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 510 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 511 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 512 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 513 awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); 514 awi_write_4(sc, AWI_CA_TX_MGT, 0); 515 awi_write_4(sc, AWI_CA_TX_BCAST, 0); 516 awi_write_4(sc, AWI_CA_TX_PS, 0); 517 awi_write_4(sc, AWI_CA_TX_CF, 0); 518 if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { 519 DPRINTF(("awi_init: failed to start transmitter: %d\n", error)); 520 awi_stop(ifp, 1); 521 return error; 522 } 523 524 /* start receiver */ 525 if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { 526 DPRINTF(("awi_init: failed to start receiver: %d\n", error)); 527 awi_stop(ifp, 1); 528 return error; 529 } 530 sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); 531 sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); 532 533 ifp->if_flags |= IFF_RUNNING; 534 ifp->if_flags &= ~IFF_OACTIVE; 535 536 if (((sc->sc_ic.ic_flags & IEEE80211_F_ADHOC) && sc->sc_no_bssid) || 537 (sc->sc_ic.ic_flags & IEEE80211_F_HOSTAP)) { 538 bs->bs_chan = ic->ic_ibss_chan; 539 bs->bs_intval = ic->ic_lintval; 540 bs->bs_rssi = 0; 541 bs->bs_rstamp = 0; 542 memset(bs->bs_tstamp, 0, sizeof(bs->bs_tstamp)); 543 bs->bs_nrate = 0; 544 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 545 if (ic->ic_sup_rates[i]) 546 bs->bs_rates[bs->bs_nrate++] = 547 ic->ic_sup_rates[i]; 548 } 549 memcpy(bs->bs_macaddr, ic->ic_myaddr, IEEE80211_ADDR_LEN); 550 if (sc->sc_ic.ic_flags & IEEE80211_F_HOSTAP) { 551 memcpy(bs->bs_bssid, ic->ic_myaddr, IEEE80211_ADDR_LEN); 552 bs->bs_esslen = ic->ic_des_esslen; 553 memcpy(bs->bs_essid, ic->ic_des_essid, bs->bs_esslen); 554 bs->bs_capinfo = IEEE80211_CAPINFO_ESS; 555 if (ic->ic_flags & IEEE80211_F_FH) { 556 bs->bs_fhdwell = 200; /* XXX */ 557 bs->bs_fhindex = 1; 558 } 559 } else { 560 bs->bs_capinfo = IEEE80211_CAPINFO_IBSS; 561 memset(bs->bs_bssid, 0, IEEE80211_ADDR_LEN); 562 bs->bs_esslen = 0; 563 } 564 if (ic->ic_flags & IEEE80211_F_WEPON) 565 bs->bs_capinfo |= IEEE80211_CAPINFO_PRIVACY; 566 ic->ic_flags |= IEEE80211_F_SIBSS; 567 ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ 568 sc->sc_substate = AWI_ST_NONE; 569 ieee80211_new_state(&ic->ic_if, IEEE80211_S_RUN, -1); 570 } else { 571 bs->bs_chan = sc->sc_cur_chan; 572 ieee80211_new_state(&ic->ic_if, IEEE80211_S_SCAN, -1); 573 } 574 return 0; 575 } 576 577 static void 578 awi_stop(struct ifnet *ifp, int disable) 579 { 580 struct awi_softc *sc = ifp->if_softc; 581 582 if (!sc->sc_enabled) 583 return; 584 585 DPRINTF(("awi_stop(%d)\n", disable)); 586 587 ieee80211_new_state(&sc->sc_ic.ic_if, IEEE80211_S_INIT, -1); 588 589 if (!sc->sc_invalid) { 590 if (sc->sc_cmd_inprog) 591 (void)awi_cmd_wait(sc); 592 (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); 593 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 594 awi_write_1(sc, AWI_CA_FTX_DATA, 1); 595 awi_write_1(sc, AWI_CA_FTX_MGT, 0); 596 awi_write_1(sc, AWI_CA_FTX_BCAST, 0); 597 awi_write_1(sc, AWI_CA_FTX_PS, 0); 598 awi_write_1(sc, AWI_CA_FTX_CF, 0); 599 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); 600 } 601 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 602 ifp->if_timer = 0; 603 sc->sc_tx_timer = sc->sc_rx_timer = 0; 604 if (sc->sc_rxpend != NULL) { 605 m_freem(sc->sc_rxpend); 606 sc->sc_rxpend = NULL; 607 } 608 IFQ_PURGE(&ifp->if_snd); 609 610 if (disable) { 611 if (sc->sc_disable) 612 (*sc->sc_disable)(sc); 613 sc->sc_enabled = 0; 614 } 615 } 616 617 static void 618 awi_start(struct ifnet *ifp) 619 { 620 struct awi_softc *sc = ifp->if_softc; 621 struct ieee80211com *ic = &sc->sc_ic; 622 struct mbuf *m, *m0; 623 int len, dowep; 624 u_int32_t txd, frame, ntxd; 625 u_int8_t rate; 626 627 if (!sc->sc_enabled || sc->sc_invalid) 628 return; 629 630 for (;;) { 631 txd = sc->sc_txnext; 632 IF_POLL(&ic->ic_mgtq, m0); 633 dowep = 0; 634 if (m0 != NULL) { 635 len = m0->m_pkthdr.len; 636 if (awi_next_txd(sc, len, &frame, &ntxd)) { 637 ifp->if_flags |= IFF_OACTIVE; 638 break; 639 } 640 IF_DEQUEUE(&ic->ic_mgtq, m0); 641 } else { 642 if (ic->ic_state != IEEE80211_S_RUN) 643 break; 644 IFQ_POLL(&ifp->if_snd, m0); 645 if (m0 == NULL) 646 break; 647 /* 648 * Need to calculate the real length to determine 649 * if the transmit buffer has a room for the packet. 650 */ 651 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 652 if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) 653 len += sizeof(struct llc) - 654 sizeof(struct ether_header); 655 if (ic->ic_flags & IEEE80211_F_WEPON) { 656 dowep = 1; 657 len += IEEE80211_WEP_IVLEN + 658 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 659 } 660 if (awi_next_txd(sc, len, &frame, &ntxd)) { 661 ifp->if_flags |= IFF_OACTIVE; 662 break; 663 } 664 IFQ_DEQUEUE(&ifp->if_snd, m0); 665 ifp->if_opackets++; 666 #if NBPFILTER > 0 667 if (ifp->if_bpf) 668 bpf_mtap(ifp->if_bpf, m0); 669 #endif 670 if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) 671 m0 = awi_ether_encap(sc, m0); 672 else 673 m0 = ieee80211_encap(ifp, m0); 674 if (m0 == NULL) { 675 ifp->if_oerrors++; 676 continue; 677 } 678 } 679 #if NBPFILTER > 0 680 if (ic->ic_rawbpf) 681 bpf_mtap(ic->ic_rawbpf, m0); 682 #endif 683 if (dowep) { 684 if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) { 685 ifp->if_oerrors++; 686 continue; 687 } 688 } 689 #ifdef DIAGNOSTIC 690 if (m0->m_pkthdr.len != len) { 691 printf("%s: length %d should be %d\n", 692 ifp->if_xname, m0->m_pkthdr.len, len); 693 m_freem(m0); 694 ifp->if_oerrors++; 695 continue; 696 } 697 #endif 698 699 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 700 ieee80211_dump_pkt(m0->m_data, m0->m_len, 701 ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 702 IEEE80211_RATE_VAL, -1); 703 704 for (m = m0, len = 0; m != NULL; m = m->m_next) { 705 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 706 m->m_len); 707 len += m->m_len; 708 } 709 m_freem(m0); 710 rate = (ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 711 IEEE80211_RATE_VAL) * 5; 712 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 713 awi_write_4(sc, txd + AWI_TXD_START, frame); 714 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 715 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 716 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 717 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 718 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 719 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 720 sc->sc_txnext = ntxd; 721 722 sc->sc_tx_timer = 5; 723 ifp->if_timer = 1; 724 } 725 } 726 727 static void 728 awi_watchdog(struct ifnet *ifp) 729 { 730 struct awi_softc *sc = ifp->if_softc; 731 u_int32_t prevdone; 732 int ocansleep; 733 734 ifp->if_timer = 0; 735 if (!sc->sc_enabled || sc->sc_invalid) 736 return; 737 738 ocansleep = sc->sc_cansleep; 739 sc->sc_cansleep = 0; 740 if (sc->sc_tx_timer) { 741 if (--sc->sc_tx_timer == 0) { 742 printf("%s: device timeout\n", ifp->if_xname); 743 prevdone = sc->sc_txdone; 744 awi_tx_int(sc); 745 if (sc->sc_txdone == prevdone) { 746 ifp->if_oerrors++; 747 awi_init(ifp); 748 goto out; 749 } 750 } 751 ifp->if_timer = 1; 752 } 753 if (sc->sc_rx_timer) { 754 if (--sc->sc_rx_timer == 0) { 755 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 756 ieee80211_new_state(ifp, IEEE80211_S_SCAN, -1); 757 goto out; 758 } 759 } else 760 ifp->if_timer = 1; 761 } 762 /* TODO: rate control */ 763 ieee80211_watchdog(ifp); 764 out: 765 sc->sc_cansleep = ocansleep; 766 } 767 768 static int 769 awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 770 { 771 struct awi_softc *sc = ifp->if_softc; 772 struct ifreq *ifr = (struct ifreq *)data; 773 int s, error; 774 775 s = splnet(); 776 /* serialize ioctl, since we may sleep */ 777 if ((error = awi_lock(sc)) != 0) 778 goto cantlock; 779 780 switch (cmd) { 781 case SIOCSIFFLAGS: 782 if (ifp->if_flags & IFF_UP) { 783 if (sc->sc_enabled) { 784 /* 785 * To avoid rescanning another access point, 786 * do not call awi_init() here. Instead, 787 * only reflect promisc mode settings. 788 */ 789 error = awi_mode_init(sc); 790 } else 791 error = awi_init(ifp); 792 } else if (sc->sc_enabled) 793 awi_stop(ifp, 1); 794 break; 795 case SIOCSIFMEDIA: 796 case SIOCGIFMEDIA: 797 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 798 break; 799 case SIOCADDMULTI: 800 case SIOCDELMULTI: 801 error = (cmd == SIOCADDMULTI) ? 802 ether_addmulti(ifr, &sc->sc_ic.ic_ec) : 803 ether_delmulti(ifr, &sc->sc_ic.ic_ec); 804 if (error == ENETRESET) { 805 /* do not rescan */ 806 if (sc->sc_enabled) 807 error = awi_mode_init(sc); 808 else 809 error = 0; 810 } 811 break; 812 default: 813 error = ieee80211_ioctl(ifp, cmd, data); 814 if (error == ENETRESET) { 815 if (sc->sc_enabled) 816 error = awi_init(ifp); 817 else 818 error = 0; 819 } 820 break; 821 } 822 awi_unlock(sc); 823 cantlock: 824 splx(s); 825 return error; 826 } 827 828 /* 829 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 830 */ 831 static int 832 awi_media_change(struct ifnet *ifp) 833 { 834 struct awi_softc *sc = ifp->if_softc; 835 struct ieee80211com *ic = &sc->sc_ic; 836 struct ifmedia_entry *ime; 837 int i, rate, error = 0; 838 839 ime = sc->sc_media.ifm_cur; 840 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 841 ic->ic_fixed_rate = -1; 842 } else { 843 rate = ieee80211_media2rate(ime->ifm_media, 844 (ic->ic_flags & (IEEE80211_F_FH | IEEE80211_F_DS))); 845 if (rate == 0) 846 return EINVAL; 847 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 848 if ((ic->ic_sup_rates[i] & IEEE80211_RATE_VAL) == rate) 849 break; 850 } 851 if (i == IEEE80211_RATE_SIZE) 852 return EINVAL; 853 ic->ic_fixed_rate = i; 854 } 855 856 /* 857 * ADHOC,-FLAG0 ADHOC|~HOSTAP, !no_bssid, !adhoc_ap IBSS 858 * ADHOC, FLAG0 ADHOC|~HOSTAP, no_bssid, !adhoc_ap WaveLAN adhoc 859 * -ADHOC, FLAG0 ADHOC|~HOSTAP, !no_bssid, adhoc_ap Melco old AP 860 * also LINK0 861 * -ADHOC,HOSTAP ~ADHOC|HOSTAP, !no_bssid, !adhoc_ap HostAP 862 * -ADHOC,-FLAG0 ~ADHOC|~HOSTAP, !no_bssid, !adhoc_ap Infra 863 */ 864 if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 865 if ((ic->ic_flags & IEEE80211_F_ADHOC) == 0 || 866 (ic->ic_flags & IEEE80211_F_IBSSON) == 0 || 867 (ic->ic_flags & IEEE80211_F_HOSTAP) || 868 sc->sc_adhoc_ap) { 869 ic->ic_flags |= IEEE80211_F_ADHOC | IEEE80211_F_IBSSON; 870 ic->ic_flags &= ~IEEE80211_F_HOSTAP; 871 sc->sc_adhoc_ap = 0; 872 error = ENETRESET; 873 } 874 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH && 875 (ime->ifm_media & IFM_FLAG0)) { 876 if (sc->sc_no_bssid == 0) { 877 sc->sc_no_bssid = 1; 878 error = ENETRESET; 879 } 880 } else { 881 if (sc->sc_no_bssid) { 882 sc->sc_no_bssid = 0; 883 error = ENETRESET; 884 } 885 } 886 } else if (ime->ifm_media & IFM_FLAG0) { 887 if ((ic->ic_flags & IEEE80211_F_ADHOC) == 0 || 888 (ic->ic_flags & IEEE80211_F_IBSSON) || 889 (ic->ic_flags & IEEE80211_F_HOSTAP) || 890 sc->sc_no_bssid || !sc->sc_adhoc_ap) { 891 ic->ic_flags |= IEEE80211_F_ADHOC; 892 ic->ic_flags &= 893 ~(IEEE80211_F_IBSSON | IEEE80211_F_HOSTAP); 894 sc->sc_no_bssid = 0; 895 sc->sc_adhoc_ap = 1; 896 error = ENETRESET; 897 } 898 } else if (ime->ifm_media & IFM_IEEE80211_HOSTAP) { 899 if ((ic->ic_flags & IEEE80211_F_ADHOC) || 900 (ic->ic_flags & IEEE80211_F_IBSSON) || 901 (ic->ic_flags & IEEE80211_F_HOSTAP) == 0 || 902 sc->sc_no_bssid || sc->sc_adhoc_ap) { 903 ic->ic_flags |= IEEE80211_F_HOSTAP; 904 ic->ic_flags &= 905 ~(IEEE80211_F_ADHOC | IEEE80211_F_IBSSON); 906 sc->sc_no_bssid = 0; 907 sc->sc_adhoc_ap = 0; 908 error = ENETRESET; 909 } 910 } else { 911 if ((ic->ic_flags & IEEE80211_F_ADHOC) || 912 (ic->ic_flags & IEEE80211_F_IBSSON) || 913 (ic->ic_flags & IEEE80211_F_HOSTAP) || 914 sc->sc_no_bssid || sc->sc_adhoc_ap) { 915 ic->ic_flags &= ~(IEEE80211_F_ADHOC | 916 IEEE80211_F_IBSSON | IEEE80211_F_HOSTAP); 917 sc->sc_no_bssid = 0; 918 sc->sc_adhoc_ap = 0; 919 error = ENETRESET; 920 } 921 } 922 if (error == ENETRESET) { 923 if (sc->sc_enabled) 924 error = awi_init(ifp); 925 else 926 error = 0; 927 } 928 return error; 929 } 930 931 static void 932 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 933 { 934 struct awi_softc *sc = ifp->if_softc; 935 struct ieee80211com *ic = &sc->sc_ic; 936 int rate; 937 938 imr->ifm_status = IFM_AVALID; 939 if (ic->ic_state == IEEE80211_S_RUN) 940 imr->ifm_status |= IFM_ACTIVE; 941 imr->ifm_active = IFM_IEEE80211; 942 if (ic->ic_state == IEEE80211_S_RUN) 943 rate = ic->ic_bss.bs_rates[ic->ic_bss.bs_txrate] & 944 IEEE80211_RATE_VAL; 945 else { 946 if (ic->ic_fixed_rate == -1) 947 rate = 0; 948 else 949 rate = ic->ic_sup_rates[ic->ic_fixed_rate] & 950 IEEE80211_RATE_VAL; 951 } 952 imr->ifm_active |= ieee80211_rate2media(rate, 953 (ic->ic_flags & (IEEE80211_F_FH | IEEE80211_F_DS))); 954 if (ic->ic_flags & IEEE80211_F_HOSTAP) 955 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 956 else if (ic->ic_flags & IEEE80211_F_ADHOC) { 957 if (sc->sc_adhoc_ap) 958 imr->ifm_active |= IFM_FLAG0; 959 else { 960 imr->ifm_active |= IFM_IEEE80211_ADHOC; 961 if (sc->sc_no_bssid) 962 imr->ifm_active |= IFM_FLAG0; 963 } 964 } 965 } 966 967 static int 968 awi_mode_init(struct awi_softc *sc) 969 { 970 struct ifnet *ifp = &sc->sc_ic.ic_if; 971 int n, error; 972 struct ether_multi *enm; 973 struct ether_multistep step; 974 975 /* reinitialize muticast filter */ 976 n = 0; 977 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 978 if (ifp->if_flags & IFF_PROMISC) { 979 sc->sc_mib_mac.aPromiscuous_Enable = 1; 980 goto set_mib; 981 } 982 sc->sc_mib_mac.aPromiscuous_Enable = 0; 983 ETHER_FIRST_MULTI(step, &sc->sc_ic.ic_ec, enm); 984 while (enm != NULL) { 985 if (n == AWI_GROUP_ADDR_SIZE || 986 memcmp(enm->enm_addrlo, enm->enm_addrhi, IEEE80211_ADDR_LEN) 987 != 0) 988 goto set_mib; 989 memcpy(sc->sc_mib_addr.aGroup_Addresses[n], enm->enm_addrlo, 990 IEEE80211_ADDR_LEN); 991 n++; 992 ETHER_NEXT_MULTI(step, enm); 993 } 994 for (; n < AWI_GROUP_ADDR_SIZE; n++) 995 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, IEEE80211_ADDR_LEN); 996 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 997 998 set_mib: 999 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 1000 ifp->if_flags &= ~IFF_ALLMULTI; 1001 else 1002 ifp->if_flags |= IFF_ALLMULTI; 1003 sc->sc_mib_mgt.Wep_Required = 1004 (sc->sc_ic.ic_flags & IEEE80211_F_WEPON) ? AWI_WEP_ON : AWI_WEP_OFF; 1005 1006 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1007 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1008 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1009 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1010 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1011 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 1012 return error; 1013 } 1014 return 0; 1015 } 1016 1017 static void 1018 awi_rx_int(struct awi_softc *sc) 1019 { 1020 struct ifnet *ifp = &sc->sc_ic.ic_if; 1021 u_int8_t state, rate, rssi; 1022 u_int16_t len; 1023 u_int32_t frame, next, rstamp, rxoff; 1024 struct mbuf *m; 1025 1026 rxoff = sc->sc_rxdoff; 1027 for (;;) { 1028 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1029 if (state & AWI_RXD_ST_OWN) 1030 break; 1031 if (!(state & AWI_RXD_ST_CONSUMED)) { 1032 if (sc->sc_substate != AWI_ST_NONE) 1033 goto rx_next; 1034 if (state & AWI_RXD_ST_RXERROR) { 1035 ifp->if_ierrors++; 1036 goto rx_next; 1037 } 1038 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1039 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1040 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1041 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1042 0x7fff; 1043 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1044 m = awi_devget(sc, frame, len); 1045 if (m == NULL) { 1046 ifp->if_ierrors++; 1047 goto rx_next; 1048 } 1049 if (state & AWI_RXD_ST_LF) { 1050 /* TODO check my bss */ 1051 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1052 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1053 sc->sc_rx_timer = 10; 1054 ifp->if_timer = 1; 1055 } 1056 if ((ifp->if_flags & IFF_DEBUG) && 1057 (ifp->if_flags & IFF_LINK2)) 1058 ieee80211_dump_pkt(m->m_data, m->m_len, 1059 rate / 5, rssi); 1060 if ((ifp->if_flags & IFF_LINK0) || 1061 sc->sc_adhoc_ap) 1062 m = awi_ether_modcap(sc, m); 1063 if (m == NULL) 1064 ifp->if_ierrors++; 1065 else 1066 ieee80211_input(ifp, m, rssi, rstamp); 1067 } else 1068 sc->sc_rxpend = m; 1069 rx_next: 1070 state |= AWI_RXD_ST_CONSUMED; 1071 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1072 } 1073 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1074 if (next & AWI_RXD_NEXT_LAST) 1075 break; 1076 /* make sure the next pointer is correct */ 1077 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1078 break; 1079 state |= AWI_RXD_ST_OWN; 1080 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1081 rxoff = next & 0x7fff; 1082 } 1083 sc->sc_rxdoff = rxoff; 1084 } 1085 1086 static void 1087 awi_tx_int(struct awi_softc *sc) 1088 { 1089 struct ifnet *ifp = &sc->sc_ic.ic_if; 1090 u_int8_t flags; 1091 1092 while (sc->sc_txdone != sc->sc_txnext) { 1093 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1094 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1095 break; 1096 if (flags & AWI_TXD_ST_ERROR) 1097 ifp->if_oerrors++; 1098 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1099 0x7fff; 1100 } 1101 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1102 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1103 sc->sc_tx_timer = 0; 1104 ifp->if_flags &= ~IFF_OACTIVE; 1105 awi_start(ifp); 1106 } 1107 1108 static struct mbuf * 1109 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1110 { 1111 struct ifnet *ifp = &sc->sc_ic.ic_if; 1112 struct mbuf *m; 1113 struct mbuf *top, **mp; 1114 u_int tlen; 1115 1116 top = sc->sc_rxpend; 1117 mp = ⊤ 1118 if (top != NULL) { 1119 sc->sc_rxpend = NULL; 1120 top->m_pkthdr.len += len; 1121 m = top; 1122 while (*mp != NULL) { 1123 m = *mp; 1124 mp = &m->m_next; 1125 } 1126 if (m->m_flags & M_EXT) 1127 tlen = m->m_ext.ext_size; 1128 else if (m->m_flags & M_PKTHDR) 1129 tlen = MHLEN; 1130 else 1131 tlen = MLEN; 1132 tlen -= m->m_len; 1133 if (tlen > len) 1134 tlen = len; 1135 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1136 off += tlen; 1137 len -= tlen; 1138 } 1139 1140 while (len > 0) { 1141 if (top == NULL) { 1142 MGETHDR(m, M_DONTWAIT, MT_DATA); 1143 if (m == NULL) 1144 return NULL; 1145 m->m_pkthdr.rcvif = ifp; 1146 m->m_pkthdr.len = len; 1147 m->m_len = MHLEN; 1148 m->m_flags |= M_HASFCS; 1149 } else { 1150 MGET(m, M_DONTWAIT, MT_DATA); 1151 if (m == NULL) { 1152 m_freem(top); 1153 return NULL; 1154 } 1155 m->m_len = MLEN; 1156 } 1157 if (len >= MINCLSIZE) { 1158 MCLGET(m, M_DONTWAIT); 1159 if (m->m_flags & M_EXT) 1160 m->m_len = m->m_ext.ext_size; 1161 } 1162 if (top == NULL) { 1163 int hdrlen = sizeof(struct ieee80211_frame) + 1164 sizeof(struct llc); 1165 caddr_t newdata = (caddr_t) 1166 ALIGN(m->m_data + hdrlen) - hdrlen; 1167 m->m_len -= newdata - m->m_data; 1168 m->m_data = newdata; 1169 } 1170 if (m->m_len > len) 1171 m->m_len = len; 1172 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1173 off += m->m_len; 1174 len -= m->m_len; 1175 *mp = m; 1176 mp = &m->m_next; 1177 } 1178 return top; 1179 } 1180 1181 /* 1182 * Initialize hardware and start firmware to accept commands. 1183 * Called everytime after power on firmware. 1184 */ 1185 1186 static int 1187 awi_hw_init(struct awi_softc *sc) 1188 { 1189 u_int8_t status; 1190 u_int16_t intmask; 1191 int i, error; 1192 1193 sc->sc_enab_intr = 0; 1194 sc->sc_invalid = 0; /* XXX: really? */ 1195 awi_drvstate(sc, AWI_DRV_RESET); 1196 1197 /* reset firmware */ 1198 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1199 DELAY(100); 1200 awi_write_1(sc, AWI_SELFTEST, 0); 1201 awi_write_1(sc, AWI_CMD, 0); 1202 awi_write_1(sc, AWI_BANNER, 0); 1203 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1204 DELAY(100); 1205 1206 /* wait for selftest completion */ 1207 for (i = 0; ; i++) { 1208 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1209 printf("%s: failed to complete selftest (timeout)\n", 1210 sc->sc_dev.dv_xname); 1211 return ENXIO; 1212 } 1213 status = awi_read_1(sc, AWI_SELFTEST); 1214 if ((status & 0xf0) == 0xf0) 1215 break; 1216 if (sc->sc_cansleep) { 1217 sc->sc_sleep_cnt++; 1218 (void)tsleep(sc, PWAIT, "awitst", 1); 1219 sc->sc_sleep_cnt--; 1220 } else { 1221 DELAY(1000*1000/hz); 1222 } 1223 } 1224 if (status != AWI_SELFTEST_PASSED) { 1225 printf("%s: failed to complete selftest (code %x)\n", 1226 sc->sc_dev.dv_xname, status); 1227 return ENXIO; 1228 } 1229 1230 /* check banner to confirm firmware write it */ 1231 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1232 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1233 printf("%s: failed to complete selftest (bad banner)\n", 1234 sc->sc_dev.dv_xname); 1235 for (i = 0; i < AWI_BANNER_LEN; i++) 1236 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1237 printf("\n"); 1238 return ENXIO; 1239 } 1240 1241 /* initializing interrupt */ 1242 sc->sc_enab_intr = 1; 1243 error = awi_intr_lock(sc); 1244 if (error) 1245 return error; 1246 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1247 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1248 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1249 awi_write_1(sc, AWI_INTMASK2, 0); 1250 awi_write_1(sc, AWI_INTSTAT, 0); 1251 awi_write_1(sc, AWI_INTSTAT2, 0); 1252 awi_intr_unlock(sc); 1253 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1254 1255 /* issuing interface test command */ 1256 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1257 if (error) { 1258 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1259 if (error == ENXIO) 1260 printf(" (no hardware)\n"); 1261 else if (error != EWOULDBLOCK) 1262 printf(" (error %d)\n", error); 1263 else if (sc->sc_cansleep) 1264 printf(" (lost interrupt)\n"); 1265 else 1266 printf(" (command timeout)\n"); 1267 } 1268 return error; 1269 } 1270 1271 /* 1272 * Extract the factory default MIB value from firmware and assign the driver 1273 * default value. 1274 * Called once at attaching the interface. 1275 */ 1276 1277 static int 1278 awi_init_mibs(struct awi_softc *sc) 1279 { 1280 int i, error; 1281 struct awi_chanset *cs; 1282 1283 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1284 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1285 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1286 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1287 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1288 printf("%s: failed to get default mib value (error %d)\n", 1289 sc->sc_dev.dv_xname, error); 1290 return error; 1291 } 1292 1293 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1294 for (cs = awi_chanset; ; cs++) { 1295 if (cs->cs_type == 0) { 1296 printf("%s: failed to set available channel\n", 1297 sc->sc_dev.dv_xname); 1298 return ENXIO; 1299 } 1300 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1301 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1302 break; 1303 } 1304 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1305 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1306 setbit(sc->sc_ic.ic_chan_avail, 1307 IEEE80211_FH_CHAN(i % 3 + 1, i)); 1308 /* 1309 * According to the IEEE 802.11 specification, 1310 * hop pattern parameter for FH phy should be 1311 * incremented by 3 for given hop chanset, i.e., 1312 * the chanset parameter is calculated for given 1313 * hop patter. However, BayStack 650 Access Points 1314 * apparently use fixed hop chanset parameter value 1315 * 1 for any hop pattern. So we also try this 1316 * combination of hop chanset and pattern. 1317 */ 1318 setbit(sc->sc_ic.ic_chan_avail, 1319 IEEE80211_FH_CHAN(1, i)); 1320 } 1321 } else { 1322 for (i = cs->cs_min; i <= cs->cs_max; i++) 1323 setbit(sc->sc_ic.ic_chan_avail, i); 1324 } 1325 sc->sc_cur_chan = cs->cs_def; 1326 1327 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1328 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1329 sc->sc_mib_local.Fragmentation_Dis = 1; 1330 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1331 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1332 1333 /* allocate buffers */ 1334 sc->sc_txbase = AWI_BUFFERS; 1335 sc->sc_txend = sc->sc_txbase + 1336 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1337 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1338 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1339 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1340 sc->sc_txend - sc->sc_txbase); 1341 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1342 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1343 AWI_BUFFERS_END - sc->sc_txend); 1344 sc->sc_mib_local.Network_Mode = 1; 1345 sc->sc_mib_local.Acting_as_AP = 0; 1346 return 0; 1347 } 1348 1349 static int 1350 awi_chan_check(void *arg, u_char *chanreq) 1351 { 1352 struct awi_softc *sc = arg; 1353 int i; 1354 struct awi_chanset *cs; 1355 u_char chanlist[(IEEE80211_CHAN_MAX+1)/NBBY]; 1356 1357 for (cs = awi_chanset; cs->cs_type != 0; cs++) { 1358 if (cs->cs_type != sc->sc_mib_phy.IEEE_PHY_Type) 1359 continue; 1360 memset(chanlist, 0, sizeof(chanlist)); 1361 for (i = 0; ; i++) { 1362 if (i == IEEE80211_CHAN_MAX) { 1363 sc->sc_mib_phy.aCurrent_Reg_Domain = 1364 cs->cs_region; 1365 memcpy(sc->sc_ic.ic_chan_avail, chanlist, 1366 sizeof(sc->sc_ic.ic_chan_avail)); 1367 sc->sc_ic.ic_bss.bs_chan = cs->cs_def; 1368 sc->sc_cur_chan = cs->cs_def; 1369 return 0; 1370 } 1371 if (i >= cs->cs_min && i <= cs->cs_max) 1372 setbit(chanlist, i); 1373 else if (isset(chanreq, i)) 1374 break; 1375 } 1376 } 1377 return EINVAL; 1378 } 1379 1380 static int 1381 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1382 { 1383 int error; 1384 u_int8_t size, *ptr; 1385 1386 switch (mib) { 1387 case AWI_MIB_LOCAL: 1388 ptr = (u_int8_t *)&sc->sc_mib_local; 1389 size = sizeof(sc->sc_mib_local); 1390 break; 1391 case AWI_MIB_ADDR: 1392 ptr = (u_int8_t *)&sc->sc_mib_addr; 1393 size = sizeof(sc->sc_mib_addr); 1394 break; 1395 case AWI_MIB_MAC: 1396 ptr = (u_int8_t *)&sc->sc_mib_mac; 1397 size = sizeof(sc->sc_mib_mac); 1398 break; 1399 case AWI_MIB_STAT: 1400 ptr = (u_int8_t *)&sc->sc_mib_stat; 1401 size = sizeof(sc->sc_mib_stat); 1402 break; 1403 case AWI_MIB_MGT: 1404 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1405 size = sizeof(sc->sc_mib_mgt); 1406 break; 1407 case AWI_MIB_PHY: 1408 ptr = (u_int8_t *)&sc->sc_mib_phy; 1409 size = sizeof(sc->sc_mib_phy); 1410 break; 1411 default: 1412 return EINVAL; 1413 } 1414 if (sc->sc_cmd_inprog) { 1415 if ((error = awi_cmd_wait(sc)) != 0) { 1416 if (error == EWOULDBLOCK) 1417 DPRINTF(("awi_mib: cmd %d inprog", 1418 sc->sc_cmd_inprog)); 1419 return error; 1420 } 1421 } 1422 sc->sc_cmd_inprog = cmd; 1423 if (cmd == AWI_CMD_SET_MIB) 1424 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1425 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1426 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1427 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1428 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1429 return error; 1430 if (cmd == AWI_CMD_GET_MIB) { 1431 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1432 #ifdef AWI_DEBUG 1433 if (awi_debug) { 1434 int i; 1435 1436 printf("awi_mib: #%d:", mib); 1437 for (i = 0; i < size; i++) 1438 printf(" %02x", ptr[i]); 1439 printf("\n"); 1440 } 1441 #endif 1442 } 1443 return 0; 1444 } 1445 1446 static int 1447 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1448 { 1449 u_int8_t status; 1450 int error = 0; 1451 #ifdef AWI_DEBUG 1452 static const char *cmdname[] = { 1453 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1454 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1455 }; 1456 #endif 1457 1458 #ifdef AWI_DEBUG 1459 if (awi_debug > 1) { 1460 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1461 printf("awi_cmd: #%d", cmd); 1462 else 1463 printf("awi_cmd: %s", cmdname[cmd]); 1464 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1465 } 1466 #endif 1467 sc->sc_cmd_inprog = cmd; 1468 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1469 awi_write_1(sc, AWI_CMD, cmd); 1470 if (wflag == AWI_NOWAIT) 1471 return EINPROGRESS; 1472 if ((error = awi_cmd_wait(sc)) != 0) 1473 return error; 1474 status = awi_read_1(sc, AWI_CMD_STATUS); 1475 awi_write_1(sc, AWI_CMD, 0); 1476 switch (status) { 1477 case AWI_STAT_OK: 1478 break; 1479 case AWI_STAT_BADPARM: 1480 return EINVAL; 1481 default: 1482 printf("%s: command %d failed %x\n", 1483 sc->sc_dev.dv_xname, cmd, status); 1484 return ENXIO; 1485 } 1486 return 0; 1487 } 1488 1489 static int 1490 awi_cmd_wait(struct awi_softc *sc) 1491 { 1492 int i, error = 0; 1493 1494 i = 0; 1495 while (sc->sc_cmd_inprog) { 1496 if (sc->sc_invalid) 1497 return ENXIO; 1498 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1499 printf("%s: failed to access hardware\n", 1500 sc->sc_dev.dv_xname); 1501 sc->sc_invalid = 1; 1502 return ENXIO; 1503 } 1504 if (sc->sc_cansleep) { 1505 sc->sc_sleep_cnt++; 1506 error = tsleep(sc, PWAIT, "awicmd", 1507 AWI_CMD_TIMEOUT*hz/1000); 1508 sc->sc_sleep_cnt--; 1509 } else { 1510 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1511 awi_cmd_done(sc); 1512 break; 1513 } 1514 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1515 error = EWOULDBLOCK; 1516 else 1517 DELAY(10); 1518 } 1519 if (error) 1520 break; 1521 } 1522 if (error) { 1523 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1524 sc->sc_cmd_inprog, error)); 1525 } 1526 return error; 1527 } 1528 1529 static void 1530 awi_cmd_done(struct awi_softc *sc) 1531 { 1532 u_int8_t cmd, status; 1533 1534 status = awi_read_1(sc, AWI_CMD_STATUS); 1535 if (status == AWI_STAT_IDLE) 1536 return; /* stray interrupt */ 1537 1538 cmd = sc->sc_cmd_inprog; 1539 sc->sc_cmd_inprog = 0; 1540 wakeup(sc); 1541 awi_write_1(sc, AWI_CMD, 0); 1542 1543 if (status != AWI_STAT_OK) { 1544 printf("%s: command %d failed %x\n", 1545 sc->sc_dev.dv_xname, cmd, status); 1546 sc->sc_substate = AWI_ST_NONE; 1547 return; 1548 } 1549 if (sc->sc_substate != AWI_ST_NONE) 1550 (void)ieee80211_new_state(&sc->sc_ic.ic_if, sc->sc_nstate, -1); 1551 } 1552 1553 static int 1554 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1555 { 1556 u_int32_t txd, ntxd, frame; 1557 1558 txd = sc->sc_txnext; 1559 frame = txd + AWI_TXD_SIZE; 1560 if (frame + len > sc->sc_txend) 1561 frame = sc->sc_txbase; 1562 ntxd = frame + len; 1563 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1564 ntxd = sc->sc_txbase; 1565 *framep = frame; 1566 *ntxdp = ntxd; 1567 /* 1568 * Determine if there are any room in ring buffer. 1569 * --- send wait, === new data, +++ conflict (ENOBUFS) 1570 * base........................end 1571 * done----txd=====ntxd OK 1572 * --txd=====done++++ntxd-- full 1573 * --txd=====ntxd done-- OK 1574 * ==ntxd done----txd=== OK 1575 * ==done++++ntxd----txd=== full 1576 * ++ntxd txd=====done++ full 1577 */ 1578 if (txd < ntxd) { 1579 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1580 return ENOBUFS; 1581 } else { 1582 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1583 return ENOBUFS; 1584 } 1585 return 0; 1586 } 1587 1588 static int 1589 awi_lock(struct awi_softc *sc) 1590 { 1591 int error = 0; 1592 1593 if (curproc == NULL) { 1594 /* 1595 * XXX 1596 * Though driver ioctl should be called with context, 1597 * KAME ipv6 stack calls ioctl in interrupt for now. 1598 * We simply abort the request if there are other 1599 * ioctl requests in progress. 1600 */ 1601 if (sc->sc_busy) { 1602 return EWOULDBLOCK; 1603 if (sc->sc_invalid) 1604 return ENXIO; 1605 } 1606 sc->sc_busy = 1; 1607 sc->sc_cansleep = 0; 1608 return 0; 1609 } 1610 while (sc->sc_busy) { 1611 if (sc->sc_invalid) 1612 return ENXIO; 1613 sc->sc_sleep_cnt++; 1614 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1615 sc->sc_sleep_cnt--; 1616 if (error) 1617 return error; 1618 } 1619 sc->sc_busy = 1; 1620 sc->sc_cansleep = 1; 1621 return 0; 1622 } 1623 1624 static void 1625 awi_unlock(struct awi_softc *sc) 1626 { 1627 sc->sc_busy = 0; 1628 sc->sc_cansleep = 0; 1629 if (sc->sc_sleep_cnt) 1630 wakeup(sc); 1631 } 1632 1633 static int 1634 awi_intr_lock(struct awi_softc *sc) 1635 { 1636 u_int8_t status; 1637 int i, retry; 1638 1639 status = 1; 1640 for (retry = 0; retry < 10; retry++) { 1641 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1642 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1643 break; 1644 DELAY(5); 1645 } 1646 if (status != 0) 1647 break; 1648 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1649 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1650 break; 1651 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1652 } 1653 if (status != 0) { 1654 printf("%s: failed to lock interrupt\n", 1655 sc->sc_dev.dv_xname); 1656 return ENXIO; 1657 } 1658 return 0; 1659 } 1660 1661 static void 1662 awi_intr_unlock(struct awi_softc *sc) 1663 { 1664 1665 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1666 } 1667 1668 static int 1669 awi_newstate(void *arg, enum ieee80211_state nstate) 1670 { 1671 struct awi_softc *sc = arg; 1672 struct ieee80211com *ic = &sc->sc_ic; 1673 struct ieee80211_bss *bs = &ic->ic_bss; 1674 struct ifnet *ifp = &ic->ic_if; 1675 int error; 1676 u_int8_t newmode; 1677 enum ieee80211_state ostate; 1678 #ifdef AWI_DEBUG 1679 static const char *stname[] = 1680 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1681 static const char *substname[] = 1682 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1683 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1684 #endif /* AWI_DEBUG */ 1685 1686 ostate = ic->ic_state; 1687 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1688 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1689 1690 /* set LED */ 1691 switch (nstate) { 1692 case IEEE80211_S_INIT: 1693 awi_drvstate(sc, AWI_DRV_RESET); 1694 break; 1695 case IEEE80211_S_SCAN: 1696 if (ic->ic_flags & IEEE80211_F_ADHOC) 1697 awi_drvstate(sc, AWI_DRV_ADHSC); 1698 else 1699 awi_drvstate(sc, AWI_DRV_INFSY); 1700 break; 1701 case IEEE80211_S_AUTH: 1702 awi_drvstate(sc, AWI_DRV_INFSY); 1703 break; 1704 case IEEE80211_S_ASSOC: 1705 awi_drvstate(sc, AWI_DRV_INFAUTH); 1706 break; 1707 case IEEE80211_S_RUN: 1708 if (ic->ic_flags & IEEE80211_F_ADHOC) 1709 awi_drvstate(sc, AWI_DRV_ADHSY); 1710 else 1711 awi_drvstate(sc, AWI_DRV_INFASSOC); 1712 break; 1713 } 1714 1715 if (nstate == IEEE80211_S_INIT) { 1716 sc->sc_substate = AWI_ST_NONE; 1717 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1718 return 0; 1719 } 1720 1721 /* state transition */ 1722 if (nstate == IEEE80211_S_SCAN) { 1723 /* SCAN substate */ 1724 if (sc->sc_substate == AWI_ST_NONE) { 1725 sc->sc_nstate = nstate; /* next state in transition */ 1726 sc->sc_substate = AWI_ST_SCAN_INIT; 1727 } 1728 switch (sc->sc_substate) { 1729 case AWI_ST_SCAN_INIT: 1730 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1731 switch (ostate) { 1732 case IEEE80211_S_RUN: 1733 /* beacon miss */ 1734 if (ifp->if_flags & IFF_DEBUG) 1735 printf("%s: no recent beacons from %s;" 1736 " rescanning\n", 1737 ifp->if_xname, 1738 ether_sprintf(ic->ic_bss.bs_bssid)); 1739 /* FALLTHRU */ 1740 case IEEE80211_S_AUTH: 1741 case IEEE80211_S_ASSOC: 1742 /* timeout restart scan */ 1743 ieee80211_free_scan(ifp); 1744 /* FALLTHRU */ 1745 case IEEE80211_S_INIT: 1746 ic->ic_flags |= IEEE80211_F_ASCAN; 1747 ic->ic_scan_timer = 0; 1748 /* FALLTHRU */ 1749 case IEEE80211_S_SCAN: 1750 /* scan next */ 1751 break; 1752 } 1753 if (ic->ic_flags & IEEE80211_F_ASCAN) 1754 newmode = AWI_SCAN_ACTIVE; 1755 else 1756 newmode = AWI_SCAN_PASSIVE; 1757 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1758 sc->sc_mib_mgt.aScan_Mode = newmode; 1759 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1760 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1761 break; 1762 } 1763 /* FALLTHRU */ 1764 case AWI_ST_SCAN_SETMIB: 1765 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1766 if (sc->sc_cmd_inprog) { 1767 if ((error = awi_cmd_wait(sc)) != 0) 1768 break; 1769 } 1770 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1771 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1772 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1773 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1774 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1775 awi_write_1(sc, AWI_CA_SCAN_SET, 1776 IEEE80211_FH_CHANSET(bs->bs_chan)); 1777 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1778 IEEE80211_FH_CHANPAT(bs->bs_chan)); 1779 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1780 } else { 1781 awi_write_1(sc, AWI_CA_SCAN_SET, bs->bs_chan); 1782 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1783 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1784 } 1785 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1786 sc->sc_cur_chan = bs->bs_chan; 1787 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1788 != 0) 1789 break; 1790 /* FALLTHRU */ 1791 case AWI_ST_SCAN_SCCMD: 1792 if (ic->ic_scan_timer == 0) 1793 ic->ic_scan_timer = 1794 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1795 IEEE80211_ASCAN_WAIT : IEEE80211_PSCAN_WAIT; 1796 ifp->if_timer = 1; 1797 ic->ic_state = nstate; 1798 sc->sc_substate = AWI_ST_NONE; 1799 error = EINPROGRESS; 1800 break; 1801 default: 1802 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1803 stname[nstate], substname[sc->sc_substate])); 1804 sc->sc_substate = AWI_ST_NONE; 1805 error = EIO; 1806 break; 1807 } 1808 return error; 1809 } 1810 1811 if (ostate == IEEE80211_S_SCAN) { 1812 /* set SSID and channel */ 1813 /* substate */ 1814 if (sc->sc_substate == AWI_ST_NONE) { 1815 sc->sc_nstate = nstate; /* next state in transition */ 1816 sc->sc_substate = AWI_ST_SUB_INIT; 1817 } 1818 switch (sc->sc_substate) { 1819 case AWI_ST_SUB_INIT: 1820 sc->sc_substate = AWI_ST_SUB_SETSS; 1821 memcpy(&sc->sc_mib_mgt.aCurrent_BSS_ID, bs->bs_bssid, 1822 IEEE80211_ADDR_LEN); 1823 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 1824 AWI_ESS_ID_SIZE); 1825 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 1826 IEEE80211_ELEMID_SSID; 1827 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = bs->bs_esslen; 1828 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 1829 bs->bs_essid, bs->bs_esslen); 1830 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 1831 bs->bs_intval); 1832 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 1833 AWI_NOWAIT)) != 0) 1834 break; 1835 /* FALLTHRU */ 1836 case AWI_ST_SUB_SETSS: 1837 sc->sc_substate = AWI_ST_SUB_SYNC; 1838 if (sc->sc_cmd_inprog) { 1839 if ((error = awi_cmd_wait(sc)) != 0) 1840 break; 1841 } 1842 sc->sc_cmd_inprog = AWI_CMD_SYNC; 1843 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1844 awi_write_1(sc, AWI_CA_SYNC_SET, 1845 IEEE80211_FH_CHANSET(bs->bs_chan)); 1846 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 1847 IEEE80211_FH_CHANPAT(bs->bs_chan)); 1848 awi_write_1(sc, AWI_CA_SYNC_IDX, 1849 bs->bs_fhindex); 1850 awi_write_2(sc, AWI_CA_SYNC_DWELL, 1851 bs->bs_fhdwell); 1852 } else { 1853 awi_write_1(sc, AWI_CA_SYNC_SET, bs->bs_chan); 1854 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 1855 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 1856 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 1857 } 1858 if ((ic->ic_flags & IEEE80211_F_SIBSS) && 1859 !sc->sc_no_bssid) 1860 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 1861 else 1862 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 1863 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 1864 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 1865 bs->bs_tstamp, 8); 1866 awi_write_4(sc, AWI_CA_SYNC_REFTIME, bs->bs_rstamp); 1867 sc->sc_cur_chan = bs->bs_chan; 1868 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 1869 != 0) 1870 break; 1871 /* FALLTHRU */ 1872 case AWI_ST_SUB_SYNC: 1873 sc->sc_substate = AWI_ST_NONE; 1874 if (ic->ic_flags & IEEE80211_F_SIBSS) { 1875 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 1876 AWI_MIB_MGT, AWI_WAIT)) != 0) 1877 break; 1878 memcpy(bs->bs_bssid, 1879 &sc->sc_mib_mgt.aCurrent_BSS_ID, 1880 IEEE80211_ADDR_LEN); 1881 } else { 1882 if (nstate == IEEE80211_S_RUN) { 1883 sc->sc_rx_timer = 10; 1884 ifp->if_timer = 1; 1885 } 1886 } 1887 error = 0; 1888 break; 1889 default: 1890 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1891 stname[nstate], substname[sc->sc_substate])); 1892 sc->sc_substate = AWI_ST_NONE; 1893 error = EIO; 1894 break; 1895 } 1896 return error; 1897 } 1898 1899 sc->sc_substate = AWI_ST_NONE; 1900 1901 return 0; 1902 } 1903 1904 static struct mbuf * 1905 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 1906 { 1907 struct ieee80211com *ic = &sc->sc_ic; 1908 struct ieee80211_bss *bs = &ic->ic_bss; 1909 struct ether_header *eh; 1910 struct ieee80211_frame *wh; 1911 1912 if (m->m_len < sizeof(struct ether_header)) { 1913 m = m_pullup(m, sizeof(struct ether_header)); 1914 if (m == NULL) 1915 return NULL; 1916 } 1917 eh = mtod(m, struct ether_header *); 1918 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 1919 if (m == NULL) 1920 return NULL; 1921 wh = mtod(m, struct ieee80211_frame *); 1922 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 1923 *(u_int16_t *)wh->i_dur = 0; 1924 *(u_int16_t *)wh->i_seq = 1925 htole16(bs->bs_txseq << IEEE80211_SEQ_SEQ_SHIFT); 1926 bs->bs_txseq++; 1927 if (ic->ic_flags & IEEE80211_F_ADHOC) { 1928 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1929 if (sc->sc_adhoc_ap) 1930 memcpy(wh->i_addr1, bs->bs_macaddr, IEEE80211_ADDR_LEN); 1931 else 1932 memcpy(wh->i_addr1, eh->ether_dhost, 1933 IEEE80211_ADDR_LEN); 1934 memcpy(wh->i_addr2, eh->ether_shost, IEEE80211_ADDR_LEN); 1935 memcpy(wh->i_addr3, bs->bs_bssid, IEEE80211_ADDR_LEN); 1936 } else { 1937 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 1938 memcpy(wh->i_addr1, bs->bs_bssid, IEEE80211_ADDR_LEN); 1939 memcpy(wh->i_addr2, eh->ether_shost, IEEE80211_ADDR_LEN); 1940 memcpy(wh->i_addr3, eh->ether_dhost, IEEE80211_ADDR_LEN); 1941 } 1942 return m; 1943 } 1944 1945 static struct mbuf * 1946 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 1947 { 1948 struct ieee80211com *ic = &sc->sc_ic; 1949 struct ether_header eh; 1950 struct ieee80211_frame wh; 1951 struct llc *llc; 1952 1953 if (m->m_len < sizeof(wh) + sizeof(eh)) { 1954 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 1955 if (m == NULL) 1956 return NULL; 1957 } 1958 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 1959 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 1960 return m; 1961 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 1962 m_adj(m, sizeof(eh) - sizeof(*llc)); 1963 if (ic->ic_flags & IEEE80211_F_ADHOC) 1964 memcpy(wh.i_addr2, eh.ether_shost, IEEE80211_ADDR_LEN); 1965 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 1966 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 1967 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 1968 llc->llc_control = LLC_UI; 1969 llc->llc_snap.org_code[0] = 0; 1970 llc->llc_snap.org_code[1] = 0; 1971 llc->llc_snap.org_code[2] = 0; 1972 llc->llc_snap.ether_type = eh.ether_type; 1973 return m; 1974 } 1975
Indexes created Sun Oct 19 16:10:00 GMT 2025