awi.c revision 1.48
1 /* $NetBSD: awi.c,v 1.48 2002/09/30 06:38:10 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 1.48 2002/09/30 06:38:10 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_phytype = IEEE80211_T_FH; 239 else 240 ic->ic_phytype = IEEE80211_T_DS; 241 ic->ic_flags = 242 IEEE80211_F_HASWEP | IEEE80211_F_HASIBSS | IEEE80211_F_HASHAP; 243 ic->ic_opmode = IEEE80211_M_STA; 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 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address); 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 #define ADD(s, o) ifmedia_add(&sc->sc_media, \ 270 IFM_MAKEWORD(IFM_IEEE80211, (s), (o), 0), 0, NULL) 271 ADD(IFM_AUTO, 0); /* infra mode */ 272 ADD(IFM_AUTO, IFM_FLAG0); /* melco compat mode */ 273 ADD(IFM_AUTO, IFM_IEEE80211_ADHOC); /* IBSS mode */ 274 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 275 ADD(IFM_AUTO, IFM_IEEE80211_ADHOC | IFM_FLAG0); 276 /* lucent compat mode */ 277 ADD(IFM_AUTO, IFM_IEEE80211_HOSTAP); 278 for (i = 0; i < nrate; i++) { 279 mword = ieee80211_rate2media(ic->ic_sup_rates[i], 280 ic->ic_phytype); 281 if (mword == 0) 282 continue; 283 ADD(mword, 0); 284 ADD(mword, IFM_FLAG0); 285 ADD(mword, IFM_IEEE80211_ADHOC); 286 if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH) 287 ADD(mword, IFM_IEEE80211_ADHOC | IFM_FLAG0); 288 ADD(mword, IFM_IEEE80211_HOSTAP); 289 } 290 #undef ADD 291 awi_media_status(ifp, &imr); 292 ifmedia_set(&sc->sc_media, imr.ifm_active); 293 294 if ((sc->sc_sdhook = shutdownhook_establish(awi_shutdown, sc)) == NULL) 295 printf("%s: WARNING: unable to establish shutdown hook\n", 296 sc->sc_dev.dv_xname); 297 if ((sc->sc_powerhook = powerhook_establish(awi_power, sc)) == NULL) 298 printf("%s: WARNING: unable to establish power hook\n", 299 sc->sc_dev.dv_xname); 300 sc->sc_attached = 1; 301 splx(s); 302 303 /* ready to accept ioctl */ 304 awi_unlock(sc); 305 306 return 0; 307 } 308 309 int 310 awi_detach(struct awi_softc *sc) 311 { 312 struct ifnet *ifp = &sc->sc_ic.ic_if; 313 int s; 314 315 if (!sc->sc_attached) 316 return 0; 317 318 s = splnet(); 319 sc->sc_invalid = 1; 320 awi_stop(ifp, 1); 321 while (sc->sc_sleep_cnt > 0) { 322 wakeup(sc); 323 (void)tsleep(sc, PWAIT, "awidet", 1); 324 } 325 ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY); 326 ieee80211_ifdetach(ifp); 327 if_detach(ifp); 328 shutdownhook_disestablish(sc->sc_sdhook); 329 powerhook_disestablish(sc->sc_powerhook); 330 splx(s); 331 return 0; 332 } 333 334 int 335 awi_activate(struct device *self, enum devact act) 336 { 337 struct awi_softc *sc = (struct awi_softc *)self; 338 struct ifnet *ifp = &sc->sc_ic.ic_if; 339 int s, error = 0; 340 341 s = splnet(); 342 switch (act) { 343 case DVACT_ACTIVATE: 344 error = EOPNOTSUPP; 345 break; 346 case DVACT_DEACTIVATE: 347 sc->sc_invalid = 1; 348 if_deactivate(ifp); 349 break; 350 } 351 splx(s); 352 return error; 353 } 354 355 void 356 awi_power(int why, void *arg) 357 { 358 struct awi_softc *sc = arg; 359 struct ifnet *ifp = &sc->sc_ic.ic_if; 360 int s; 361 int ocansleep; 362 363 DPRINTF(("awi_power: %d\n", why)); 364 s = splnet(); 365 ocansleep = sc->sc_cansleep; 366 sc->sc_cansleep = 0; 367 switch (why) { 368 case PWR_SUSPEND: 369 case PWR_STANDBY: 370 awi_stop(ifp, 1); 371 break; 372 case PWR_RESUME: 373 if (ifp->if_flags & IFF_UP) { 374 awi_init(ifp); 375 (void)awi_intr(sc); /* make sure */ 376 } 377 break; 378 case PWR_SOFTSUSPEND: 379 case PWR_SOFTSTANDBY: 380 case PWR_SOFTRESUME: 381 break; 382 } 383 sc->sc_cansleep = ocansleep; 384 splx(s); 385 } 386 387 void 388 awi_shutdown(void *arg) 389 { 390 struct awi_softc *sc = arg; 391 struct ifnet *ifp = &sc->sc_ic.ic_if; 392 393 if (sc->sc_attached) 394 awi_stop(ifp, 1); 395 } 396 397 int 398 awi_intr(void *arg) 399 { 400 struct awi_softc *sc = arg; 401 u_int16_t status; 402 int error, handled = 0, ocansleep; 403 #ifdef AWI_DEBUG 404 static const char *intname[] = { 405 "CMD", "RX", "TX", "SCAN_CMPLT", 406 "CFP_START", "DTIM", "CFP_ENDING", "GROGGY", 407 "TXDATA", "TXBCAST", "TXPS", "TXCF", 408 "TXMGT", "#13", "RXDATA", "RXMGT" 409 }; 410 #endif 411 412 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) 413 return 0; 414 415 am79c930_gcr_setbits(&sc->sc_chip, 416 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 417 awi_write_1(sc, AWI_DIS_PWRDN, 1); 418 ocansleep = sc->sc_cansleep; 419 sc->sc_cansleep = 0; 420 421 for (;;) { 422 if ((error = awi_intr_lock(sc)) != 0) 423 break; 424 status = awi_read_1(sc, AWI_INTSTAT); 425 awi_write_1(sc, AWI_INTSTAT, 0); 426 awi_write_1(sc, AWI_INTSTAT, 0); 427 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 428 awi_write_1(sc, AWI_INTSTAT2, 0); 429 DELAY(10); 430 awi_intr_unlock(sc); 431 if (!sc->sc_cmd_inprog) 432 status &= ~AWI_INT_CMD; /* make sure */ 433 if (status == 0) 434 break; 435 #ifdef AWI_DEBUG 436 if (awi_debug > 1) { 437 int i; 438 439 printf("awi_intr: status 0x%04x", status); 440 for (i = 0; i < sizeof(intname)/sizeof(intname[0]); 441 i++) { 442 if (status & (1 << i)) 443 printf(" %s", intname[i]); 444 } 445 printf("\n"); 446 } 447 #endif 448 handled = 1; 449 if (status & AWI_INT_RX) 450 awi_rx_int(sc); 451 if (status & AWI_INT_TX) 452 awi_tx_int(sc); 453 if (status & AWI_INT_CMD) 454 awi_cmd_done(sc); 455 if (status & AWI_INT_SCAN_CMPLT) { 456 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN && 457 sc->sc_substate == AWI_ST_NONE) 458 ieee80211_next_scan(&sc->sc_ic.ic_if); 459 } 460 } 461 sc->sc_cansleep = ocansleep; 462 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 463 awi_write_1(sc, AWI_DIS_PWRDN, 0); 464 return handled; 465 } 466 467 static int 468 awi_init(struct ifnet *ifp) 469 { 470 struct awi_softc *sc = ifp->if_softc; 471 struct ieee80211com *ic = &sc->sc_ic; 472 struct ieee80211_node *ni = &ic->ic_bss; 473 int i, error; 474 475 DPRINTF(("awi_init: enabled=%d\n", sc->sc_enabled)); 476 if (sc->sc_enabled) { 477 awi_stop(ifp, 0); 478 } else { 479 if (sc->sc_enable) 480 (*sc->sc_enable)(sc); 481 sc->sc_enabled = 1; 482 if ((error = awi_hw_init(sc)) != 0) { 483 awi_stop(ifp, 1); 484 return error; 485 } 486 } 487 ic->ic_state = IEEE80211_S_INIT; 488 489 sc->sc_mib_local.Network_Mode = 490 (ic->ic_opmode == IEEE80211_M_ADHOC) ? 0 : 1; 491 sc->sc_mib_local.Acting_as_AP = 492 (ic->ic_opmode == IEEE80211_M_HOSTAP) ? 1 : 0; 493 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 494 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 495 sc->sc_mib_mac.aDesired_ESS_ID[1] = ic->ic_des_esslen; 496 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], ic->ic_des_essid, 497 ic->ic_des_esslen); 498 499 if ((error = awi_mode_init(sc)) != 0) { 500 DPRINTF(("awi_init: awi_mode_init failed %d\n", error)); 501 awi_stop(ifp, 1); 502 return error; 503 } 504 505 /* start transmitter */ 506 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 507 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 508 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 509 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 510 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 511 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 512 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 513 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 514 awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); 515 awi_write_4(sc, AWI_CA_TX_MGT, 0); 516 awi_write_4(sc, AWI_CA_TX_BCAST, 0); 517 awi_write_4(sc, AWI_CA_TX_PS, 0); 518 awi_write_4(sc, AWI_CA_TX_CF, 0); 519 if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { 520 DPRINTF(("awi_init: failed to start transmitter: %d\n", error)); 521 awi_stop(ifp, 1); 522 return error; 523 } 524 525 /* start receiver */ 526 if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { 527 DPRINTF(("awi_init: failed to start receiver: %d\n", error)); 528 awi_stop(ifp, 1); 529 return error; 530 } 531 sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); 532 sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); 533 534 ifp->if_flags |= IFF_RUNNING; 535 ifp->if_flags &= ~IFF_OACTIVE; 536 537 if ((ic->ic_opmode == IEEE80211_M_ADHOC && sc->sc_no_bssid) || 538 ic->ic_opmode == IEEE80211_M_HOSTAP) { 539 ni->ni_chan = ic->ic_ibss_chan; 540 ni->ni_intval = ic->ic_lintval; 541 ni->ni_rssi = 0; 542 ni->ni_rstamp = 0; 543 memset(ni->ni_tstamp, 0, sizeof(ni->ni_tstamp)); 544 ni->ni_nrate = 0; 545 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 546 if (ic->ic_sup_rates[i]) 547 ni->ni_rates[ni->ni_nrate++] = 548 ic->ic_sup_rates[i]; 549 } 550 IEEE80211_ADDR_COPY(ni->ni_macaddr, ic->ic_myaddr); 551 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 552 IEEE80211_ADDR_COPY(ni->ni_bssid, ic->ic_myaddr); 553 ni->ni_esslen = ic->ic_des_esslen; 554 memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); 555 ni->ni_capinfo = IEEE80211_CAPINFO_ESS; 556 if (ic->ic_phytype == IEEE80211_T_FH) { 557 ni->ni_fhdwell = 200; /* XXX */ 558 ni->ni_fhindex = 1; 559 } 560 } else { 561 ni->ni_capinfo = IEEE80211_CAPINFO_IBSS; 562 memset(ni->ni_bssid, 0, IEEE80211_ADDR_LEN); 563 ni->ni_esslen = 0; 564 } 565 if (ic->ic_flags & IEEE80211_F_WEPON) 566 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 567 ic->ic_flags |= IEEE80211_F_SIBSS; 568 ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ 569 sc->sc_substate = AWI_ST_NONE; 570 ieee80211_new_state(&ic->ic_if, IEEE80211_S_RUN, -1); 571 } else { 572 ni->ni_chan = sc->sc_cur_chan; 573 ieee80211_new_state(&ic->ic_if, IEEE80211_S_SCAN, -1); 574 } 575 return 0; 576 } 577 578 static void 579 awi_stop(struct ifnet *ifp, int disable) 580 { 581 struct awi_softc *sc = ifp->if_softc; 582 583 if (!sc->sc_enabled) 584 return; 585 586 DPRINTF(("awi_stop(%d)\n", disable)); 587 588 ieee80211_new_state(&sc->sc_ic.ic_if, IEEE80211_S_INIT, -1); 589 590 if (!sc->sc_invalid) { 591 if (sc->sc_cmd_inprog) 592 (void)awi_cmd_wait(sc); 593 (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); 594 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 595 awi_write_1(sc, AWI_CA_FTX_DATA, 1); 596 awi_write_1(sc, AWI_CA_FTX_MGT, 0); 597 awi_write_1(sc, AWI_CA_FTX_BCAST, 0); 598 awi_write_1(sc, AWI_CA_FTX_PS, 0); 599 awi_write_1(sc, AWI_CA_FTX_CF, 0); 600 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); 601 } 602 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 603 ifp->if_timer = 0; 604 sc->sc_tx_timer = sc->sc_rx_timer = 0; 605 if (sc->sc_rxpend != NULL) { 606 m_freem(sc->sc_rxpend); 607 sc->sc_rxpend = NULL; 608 } 609 IFQ_PURGE(&ifp->if_snd); 610 611 if (disable) { 612 if (sc->sc_disable) 613 (*sc->sc_disable)(sc); 614 sc->sc_enabled = 0; 615 } 616 } 617 618 static void 619 awi_start(struct ifnet *ifp) 620 { 621 struct awi_softc *sc = ifp->if_softc; 622 struct ieee80211com *ic = &sc->sc_ic; 623 struct ieee80211_frame *wh; 624 struct mbuf *m, *m0; 625 int len, dowep; 626 u_int32_t txd, frame, ntxd; 627 u_int8_t rate; 628 629 if (!sc->sc_enabled || sc->sc_invalid) 630 return; 631 632 for (;;) { 633 txd = sc->sc_txnext; 634 IF_POLL(&ic->ic_mgtq, m0); 635 dowep = 0; 636 if (m0 != NULL) { 637 len = m0->m_pkthdr.len; 638 if (awi_next_txd(sc, len, &frame, &ntxd)) { 639 ifp->if_flags |= IFF_OACTIVE; 640 break; 641 } 642 IF_DEQUEUE(&ic->ic_mgtq, m0); 643 } else { 644 if (ic->ic_state != IEEE80211_S_RUN) 645 break; 646 IFQ_POLL(&ifp->if_snd, m0); 647 if (m0 == NULL) 648 break; 649 /* 650 * Need to calculate the real length to determine 651 * if the transmit buffer has a room for the packet. 652 */ 653 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 654 if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) 655 len += sizeof(struct llc) - 656 sizeof(struct ether_header); 657 if (ic->ic_flags & IEEE80211_F_WEPON) { 658 dowep = 1; 659 len += IEEE80211_WEP_IVLEN + 660 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 661 } 662 if (awi_next_txd(sc, len, &frame, &ntxd)) { 663 ifp->if_flags |= IFF_OACTIVE; 664 break; 665 } 666 IFQ_DEQUEUE(&ifp->if_snd, m0); 667 ifp->if_opackets++; 668 #if NBPFILTER > 0 669 if (ifp->if_bpf) 670 bpf_mtap(ifp->if_bpf, m0); 671 #endif 672 if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) 673 m0 = awi_ether_encap(sc, m0); 674 else 675 m0 = ieee80211_encap(ifp, m0); 676 if (m0 == NULL) { 677 ifp->if_oerrors++; 678 continue; 679 } 680 wh = mtod(m0, struct ieee80211_frame *); 681 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) && 682 ic->ic_opmode != IEEE80211_M_STA && 683 sc->sc_no_bssid == 0 && 684 sc->sc_adhoc_ap == 0 && 685 (ifp->if_flags & IFF_LINK0) == 0 && 686 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 687 IEEE80211_FC0_TYPE_DATA && 688 ieee80211_find_node(ic, wh->i_addr1) == NULL) { 689 m_freem(m0); 690 ifp->if_oerrors++; 691 continue; 692 } 693 } 694 #if NBPFILTER > 0 695 if (ic->ic_rawbpf) 696 bpf_mtap(ic->ic_rawbpf, m0); 697 #endif 698 if (dowep) { 699 if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) { 700 ifp->if_oerrors++; 701 continue; 702 } 703 } 704 #ifdef DIAGNOSTIC 705 if (m0->m_pkthdr.len != len) { 706 printf("%s: length %d should be %d\n", 707 ifp->if_xname, m0->m_pkthdr.len, len); 708 m_freem(m0); 709 ifp->if_oerrors++; 710 continue; 711 } 712 #endif 713 714 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 715 ieee80211_dump_pkt(m0->m_data, m0->m_len, 716 ic->ic_bss.ni_rates[ic->ic_bss.ni_txrate] & 717 IEEE80211_RATE_VAL, -1); 718 719 for (m = m0, len = 0; m != NULL; m = m->m_next) { 720 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 721 m->m_len); 722 len += m->m_len; 723 } 724 m_freem(m0); 725 rate = (ic->ic_bss.ni_rates[ic->ic_bss.ni_txrate] & 726 IEEE80211_RATE_VAL) * 5; 727 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 728 awi_write_4(sc, txd + AWI_TXD_START, frame); 729 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 730 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 731 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 732 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 733 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 734 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 735 sc->sc_txnext = ntxd; 736 737 sc->sc_tx_timer = 5; 738 ifp->if_timer = 1; 739 } 740 } 741 742 static void 743 awi_watchdog(struct ifnet *ifp) 744 { 745 struct awi_softc *sc = ifp->if_softc; 746 u_int32_t prevdone; 747 int ocansleep; 748 749 ifp->if_timer = 0; 750 if (!sc->sc_enabled || sc->sc_invalid) 751 return; 752 753 ocansleep = sc->sc_cansleep; 754 sc->sc_cansleep = 0; 755 if (sc->sc_tx_timer) { 756 if (--sc->sc_tx_timer == 0) { 757 printf("%s: device timeout\n", ifp->if_xname); 758 prevdone = sc->sc_txdone; 759 awi_tx_int(sc); 760 if (sc->sc_txdone == prevdone) { 761 ifp->if_oerrors++; 762 awi_init(ifp); 763 goto out; 764 } 765 } 766 ifp->if_timer = 1; 767 } 768 if (sc->sc_rx_timer) { 769 if (--sc->sc_rx_timer == 0) { 770 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 771 ieee80211_new_state(ifp, IEEE80211_S_SCAN, -1); 772 goto out; 773 } 774 } else 775 ifp->if_timer = 1; 776 } 777 /* TODO: rate control */ 778 ieee80211_watchdog(ifp); 779 out: 780 sc->sc_cansleep = ocansleep; 781 } 782 783 static int 784 awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 785 { 786 struct awi_softc *sc = ifp->if_softc; 787 struct ifreq *ifr = (struct ifreq *)data; 788 int s, error; 789 790 s = splnet(); 791 /* serialize ioctl, since we may sleep */ 792 if ((error = awi_lock(sc)) != 0) 793 goto cantlock; 794 795 switch (cmd) { 796 case SIOCSIFFLAGS: 797 if (ifp->if_flags & IFF_UP) { 798 if (sc->sc_enabled) { 799 /* 800 * To avoid rescanning another access point, 801 * do not call awi_init() here. Instead, 802 * only reflect promisc mode settings. 803 */ 804 error = awi_mode_init(sc); 805 } else 806 error = awi_init(ifp); 807 } else if (sc->sc_enabled) 808 awi_stop(ifp, 1); 809 break; 810 case SIOCSIFMEDIA: 811 case SIOCGIFMEDIA: 812 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 813 break; 814 case SIOCADDMULTI: 815 case SIOCDELMULTI: 816 error = (cmd == SIOCADDMULTI) ? 817 ether_addmulti(ifr, &sc->sc_ic.ic_ec) : 818 ether_delmulti(ifr, &sc->sc_ic.ic_ec); 819 if (error == ENETRESET) { 820 /* do not rescan */ 821 if (sc->sc_enabled) 822 error = awi_mode_init(sc); 823 else 824 error = 0; 825 } 826 break; 827 default: 828 error = ieee80211_ioctl(ifp, cmd, data); 829 if (error == ENETRESET) { 830 if (sc->sc_enabled) 831 error = awi_init(ifp); 832 else 833 error = 0; 834 } 835 break; 836 } 837 awi_unlock(sc); 838 cantlock: 839 splx(s); 840 return error; 841 } 842 843 /* 844 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 845 */ 846 static int 847 awi_media_change(struct ifnet *ifp) 848 { 849 struct awi_softc *sc = ifp->if_softc; 850 struct ieee80211com *ic = &sc->sc_ic; 851 struct ifmedia_entry *ime; 852 int i, rate, error = 0; 853 854 ime = sc->sc_media.ifm_cur; 855 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 856 ic->ic_fixed_rate = -1; 857 } else { 858 rate = ieee80211_media2rate(ime->ifm_media, ic->ic_phytype); 859 if (rate == 0) 860 return EINVAL; 861 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 862 if ((ic->ic_sup_rates[i] & IEEE80211_RATE_VAL) == rate) 863 break; 864 } 865 if (i == IEEE80211_RATE_SIZE) 866 return EINVAL; 867 ic->ic_fixed_rate = i; 868 } 869 870 /* 871 * combination of mediaopt 872 * 873 * hostap adhoc flag0 opmode no_bssid adhoc_ap comment 874 * + - - HOSTAP 0 0 HostAP 875 * - + - ADHOC 0 0 IBSS 876 * - + + ADHOC 1 0 WaveLAN adhoc 877 * - - + ADHOC 0 1 Melco old Sta 878 * also LINK0 879 * - - - STA 0 0 Infra Station 880 */ 881 ic->ic_flags &= ~IEEE80211_F_IBSSON; 882 if (ime->ifm_media & IFM_IEEE80211_HOSTAP) { 883 if (ic->ic_opmode != IEEE80211_M_HOSTAP) { 884 ic->ic_opmode = IEEE80211_M_HOSTAP; 885 sc->sc_no_bssid = 0; 886 sc->sc_adhoc_ap = 0; 887 error = ENETRESET; 888 } 889 } else if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 890 if (ic->ic_opmode != IEEE80211_M_ADHOC || 891 sc->sc_adhoc_ap != 0) { 892 ic->ic_opmode = IEEE80211_M_ADHOC; 893 sc->sc_adhoc_ap = 0; 894 error = ENETRESET; 895 } 896 if (ic->ic_phytype == IEEE80211_T_DS && 897 (ime->ifm_media & IFM_FLAG0)) { 898 if (sc->sc_no_bssid == 0) { 899 sc->sc_no_bssid = 1; 900 error = ENETRESET; 901 } 902 } else { 903 if (sc->sc_no_bssid) { 904 sc->sc_no_bssid = 0; 905 error = ENETRESET; 906 } 907 ic->ic_flags |= IEEE80211_F_IBSSON; 908 } 909 } else if (ime->ifm_media & IFM_FLAG0) { 910 if (ic->ic_opmode != IEEE80211_M_ADHOC || 911 sc->sc_adhoc_ap == 0) { 912 ic->ic_opmode = IEEE80211_M_ADHOC; 913 sc->sc_adhoc_ap = 1; 914 sc->sc_no_bssid = 0; 915 error = ENETRESET; 916 } 917 } else { 918 if (ic->ic_opmode != IEEE80211_M_STA) { 919 ic->ic_opmode = IEEE80211_M_STA; 920 sc->sc_no_bssid = 0; 921 sc->sc_adhoc_ap = 0; 922 error = ENETRESET; 923 } 924 } 925 if (error == ENETRESET) { 926 if (sc->sc_enabled) 927 error = awi_init(ifp); 928 else 929 error = 0; 930 } 931 return error; 932 } 933 934 static void 935 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 936 { 937 struct awi_softc *sc = ifp->if_softc; 938 struct ieee80211com *ic = &sc->sc_ic; 939 int rate; 940 941 imr->ifm_status = IFM_AVALID; 942 if (ic->ic_state == IEEE80211_S_RUN) 943 imr->ifm_status |= IFM_ACTIVE; 944 imr->ifm_active = IFM_IEEE80211; 945 if (ic->ic_state == IEEE80211_S_RUN) 946 rate = ic->ic_bss.ni_rates[ic->ic_bss.ni_txrate] & 947 IEEE80211_RATE_VAL; 948 else { 949 if (ic->ic_fixed_rate == -1) 950 rate = 0; 951 else 952 rate = ic->ic_sup_rates[ic->ic_fixed_rate] & 953 IEEE80211_RATE_VAL; 954 } 955 imr->ifm_active |= ieee80211_rate2media(rate, ic->ic_phytype); 956 switch (ic->ic_opmode) { 957 case IEEE80211_M_STA: 958 break; 959 case IEEE80211_M_ADHOC: 960 if (sc->sc_adhoc_ap) 961 imr->ifm_active |= IFM_FLAG0; 962 else { 963 imr->ifm_active |= IFM_IEEE80211_ADHOC; 964 if (sc->sc_no_bssid) 965 imr->ifm_active |= IFM_FLAG0; 966 } 967 break; 968 case IEEE80211_M_HOSTAP: 969 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 970 break; 971 } 972 } 973 974 static int 975 awi_mode_init(struct awi_softc *sc) 976 { 977 struct ifnet *ifp = &sc->sc_ic.ic_if; 978 int n, error; 979 struct ether_multi *enm; 980 struct ether_multistep step; 981 982 /* reinitialize muticast filter */ 983 n = 0; 984 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 985 if (sc->sc_ic.ic_opmode != IEEE80211_M_HOSTAP && 986 (ifp->if_flags & IFF_PROMISC)) { 987 sc->sc_mib_mac.aPromiscuous_Enable = 1; 988 goto set_mib; 989 } 990 sc->sc_mib_mac.aPromiscuous_Enable = 0; 991 ETHER_FIRST_MULTI(step, &sc->sc_ic.ic_ec, enm); 992 while (enm != NULL) { 993 if (n == AWI_GROUP_ADDR_SIZE || 994 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) 995 goto set_mib; 996 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 997 enm->enm_addrlo); 998 n++; 999 ETHER_NEXT_MULTI(step, enm); 1000 } 1001 for (; n < AWI_GROUP_ADDR_SIZE; n++) 1002 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, 1003 IEEE80211_ADDR_LEN); 1004 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1005 1006 set_mib: 1007 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 1008 ifp->if_flags &= ~IFF_ALLMULTI; 1009 else 1010 ifp->if_flags |= IFF_ALLMULTI; 1011 sc->sc_mib_mgt.Wep_Required = 1012 (sc->sc_ic.ic_flags & IEEE80211_F_WEPON) ? AWI_WEP_ON : AWI_WEP_OFF; 1013 1014 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1015 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1016 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1017 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1018 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1019 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 1020 return error; 1021 } 1022 return 0; 1023 } 1024 1025 static void 1026 awi_rx_int(struct awi_softc *sc) 1027 { 1028 struct ifnet *ifp = &sc->sc_ic.ic_if; 1029 u_int8_t state, rate, rssi; 1030 u_int16_t len; 1031 u_int32_t frame, next, rstamp, rxoff; 1032 struct mbuf *m; 1033 1034 rxoff = sc->sc_rxdoff; 1035 for (;;) { 1036 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1037 if (state & AWI_RXD_ST_OWN) 1038 break; 1039 if (!(state & AWI_RXD_ST_CONSUMED)) { 1040 if (sc->sc_substate != AWI_ST_NONE) 1041 goto rx_next; 1042 if (state & AWI_RXD_ST_RXERROR) { 1043 ifp->if_ierrors++; 1044 goto rx_next; 1045 } 1046 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1047 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1048 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1049 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1050 0x7fff; 1051 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1052 m = awi_devget(sc, frame, len); 1053 if (m == NULL) { 1054 ifp->if_ierrors++; 1055 goto rx_next; 1056 } 1057 if (state & AWI_RXD_ST_LF) { 1058 /* TODO check my bss */ 1059 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1060 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1061 sc->sc_rx_timer = 10; 1062 ifp->if_timer = 1; 1063 } 1064 if ((ifp->if_flags & IFF_DEBUG) && 1065 (ifp->if_flags & IFF_LINK2)) 1066 ieee80211_dump_pkt(m->m_data, m->m_len, 1067 rate / 5, rssi); 1068 if ((ifp->if_flags & IFF_LINK0) || 1069 sc->sc_adhoc_ap) 1070 m = awi_ether_modcap(sc, m); 1071 if (m == NULL) 1072 ifp->if_ierrors++; 1073 else 1074 ieee80211_input(ifp, m, rssi, rstamp); 1075 } else 1076 sc->sc_rxpend = m; 1077 rx_next: 1078 state |= AWI_RXD_ST_CONSUMED; 1079 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1080 } 1081 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1082 if (next & AWI_RXD_NEXT_LAST) 1083 break; 1084 /* make sure the next pointer is correct */ 1085 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1086 break; 1087 state |= AWI_RXD_ST_OWN; 1088 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1089 rxoff = next & 0x7fff; 1090 } 1091 sc->sc_rxdoff = rxoff; 1092 } 1093 1094 static void 1095 awi_tx_int(struct awi_softc *sc) 1096 { 1097 struct ifnet *ifp = &sc->sc_ic.ic_if; 1098 u_int8_t flags; 1099 1100 while (sc->sc_txdone != sc->sc_txnext) { 1101 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1102 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1103 break; 1104 if (flags & AWI_TXD_ST_ERROR) 1105 ifp->if_oerrors++; 1106 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1107 0x7fff; 1108 } 1109 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1110 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1111 sc->sc_tx_timer = 0; 1112 ifp->if_flags &= ~IFF_OACTIVE; 1113 awi_start(ifp); 1114 } 1115 1116 static struct mbuf * 1117 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1118 { 1119 struct ifnet *ifp = &sc->sc_ic.ic_if; 1120 struct mbuf *m; 1121 struct mbuf *top, **mp; 1122 u_int tlen; 1123 1124 top = sc->sc_rxpend; 1125 mp = ⊤ 1126 if (top != NULL) { 1127 sc->sc_rxpend = NULL; 1128 top->m_pkthdr.len += len; 1129 m = top; 1130 while (*mp != NULL) { 1131 m = *mp; 1132 mp = &m->m_next; 1133 } 1134 if (m->m_flags & M_EXT) 1135 tlen = m->m_ext.ext_size; 1136 else if (m->m_flags & M_PKTHDR) 1137 tlen = MHLEN; 1138 else 1139 tlen = MLEN; 1140 tlen -= m->m_len; 1141 if (tlen > len) 1142 tlen = len; 1143 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1144 off += tlen; 1145 len -= tlen; 1146 } 1147 1148 while (len > 0) { 1149 if (top == NULL) { 1150 MGETHDR(m, M_DONTWAIT, MT_DATA); 1151 if (m == NULL) 1152 return NULL; 1153 m->m_pkthdr.rcvif = ifp; 1154 m->m_pkthdr.len = len; 1155 m->m_len = MHLEN; 1156 m->m_flags |= M_HASFCS; 1157 } else { 1158 MGET(m, M_DONTWAIT, MT_DATA); 1159 if (m == NULL) { 1160 m_freem(top); 1161 return NULL; 1162 } 1163 m->m_len = MLEN; 1164 } 1165 if (len >= MINCLSIZE) { 1166 MCLGET(m, M_DONTWAIT); 1167 if (m->m_flags & M_EXT) 1168 m->m_len = m->m_ext.ext_size; 1169 } 1170 if (top == NULL) { 1171 int hdrlen = sizeof(struct ieee80211_frame) + 1172 sizeof(struct llc); 1173 caddr_t newdata = (caddr_t) 1174 ALIGN(m->m_data + hdrlen) - hdrlen; 1175 m->m_len -= newdata - m->m_data; 1176 m->m_data = newdata; 1177 } 1178 if (m->m_len > len) 1179 m->m_len = len; 1180 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1181 off += m->m_len; 1182 len -= m->m_len; 1183 *mp = m; 1184 mp = &m->m_next; 1185 } 1186 return top; 1187 } 1188 1189 /* 1190 * Initialize hardware and start firmware to accept commands. 1191 * Called everytime after power on firmware. 1192 */ 1193 1194 static int 1195 awi_hw_init(struct awi_softc *sc) 1196 { 1197 u_int8_t status; 1198 u_int16_t intmask; 1199 int i, error; 1200 1201 sc->sc_enab_intr = 0; 1202 sc->sc_invalid = 0; /* XXX: really? */ 1203 awi_drvstate(sc, AWI_DRV_RESET); 1204 1205 /* reset firmware */ 1206 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1207 DELAY(100); 1208 awi_write_1(sc, AWI_SELFTEST, 0); 1209 awi_write_1(sc, AWI_CMD, 0); 1210 awi_write_1(sc, AWI_BANNER, 0); 1211 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1212 DELAY(100); 1213 1214 /* wait for selftest completion */ 1215 for (i = 0; ; i++) { 1216 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1217 printf("%s: failed to complete selftest (timeout)\n", 1218 sc->sc_dev.dv_xname); 1219 return ENXIO; 1220 } 1221 status = awi_read_1(sc, AWI_SELFTEST); 1222 if ((status & 0xf0) == 0xf0) 1223 break; 1224 if (sc->sc_cansleep) { 1225 sc->sc_sleep_cnt++; 1226 (void)tsleep(sc, PWAIT, "awitst", 1); 1227 sc->sc_sleep_cnt--; 1228 } else { 1229 DELAY(1000*1000/hz); 1230 } 1231 } 1232 if (status != AWI_SELFTEST_PASSED) { 1233 printf("%s: failed to complete selftest (code %x)\n", 1234 sc->sc_dev.dv_xname, status); 1235 return ENXIO; 1236 } 1237 1238 /* check banner to confirm firmware write it */ 1239 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1240 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1241 printf("%s: failed to complete selftest (bad banner)\n", 1242 sc->sc_dev.dv_xname); 1243 for (i = 0; i < AWI_BANNER_LEN; i++) 1244 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1245 printf("\n"); 1246 return ENXIO; 1247 } 1248 1249 /* initializing interrupt */ 1250 sc->sc_enab_intr = 1; 1251 error = awi_intr_lock(sc); 1252 if (error) 1253 return error; 1254 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1255 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1256 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1257 awi_write_1(sc, AWI_INTMASK2, 0); 1258 awi_write_1(sc, AWI_INTSTAT, 0); 1259 awi_write_1(sc, AWI_INTSTAT2, 0); 1260 awi_intr_unlock(sc); 1261 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1262 1263 /* issuing interface test command */ 1264 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1265 if (error) { 1266 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1267 if (error == ENXIO) 1268 printf(" (no hardware)\n"); 1269 else if (error != EWOULDBLOCK) 1270 printf(" (error %d)\n", error); 1271 else if (sc->sc_cansleep) 1272 printf(" (lost interrupt)\n"); 1273 else 1274 printf(" (command timeout)\n"); 1275 return error; 1276 } 1277 1278 /* Initialize VBM */ 1279 awi_write_1(sc, AWI_VBM_OFFSET, 0); 1280 awi_write_1(sc, AWI_VBM_LENGTH, 1); 1281 awi_write_1(sc, AWI_VBM_BITMAP, 0); 1282 return 0; 1283 } 1284 1285 /* 1286 * Extract the factory default MIB value from firmware and assign the driver 1287 * default value. 1288 * Called once at attaching the interface. 1289 */ 1290 1291 static int 1292 awi_init_mibs(struct awi_softc *sc) 1293 { 1294 int i, error; 1295 struct awi_chanset *cs; 1296 1297 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1298 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1299 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1300 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1301 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1302 printf("%s: failed to get default mib value (error %d)\n", 1303 sc->sc_dev.dv_xname, error); 1304 return error; 1305 } 1306 1307 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1308 for (cs = awi_chanset; ; cs++) { 1309 if (cs->cs_type == 0) { 1310 printf("%s: failed to set available channel\n", 1311 sc->sc_dev.dv_xname); 1312 return ENXIO; 1313 } 1314 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1315 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1316 break; 1317 } 1318 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1319 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1320 setbit(sc->sc_ic.ic_chan_avail, 1321 IEEE80211_FH_CHAN(i % 3 + 1, i)); 1322 /* 1323 * According to the IEEE 802.11 specification, 1324 * hop pattern parameter for FH phy should be 1325 * incremented by 3 for given hop chanset, i.e., 1326 * the chanset parameter is calculated for given 1327 * hop patter. However, BayStack 650 Access Points 1328 * apparently use fixed hop chanset parameter value 1329 * 1 for any hop pattern. So we also try this 1330 * combination of hop chanset and pattern. 1331 */ 1332 setbit(sc->sc_ic.ic_chan_avail, 1333 IEEE80211_FH_CHAN(1, i)); 1334 } 1335 } else { 1336 for (i = cs->cs_min; i <= cs->cs_max; i++) 1337 setbit(sc->sc_ic.ic_chan_avail, i); 1338 } 1339 sc->sc_cur_chan = cs->cs_def; 1340 1341 sc->sc_mib_local.Fragmentation_Dis = 1; 1342 sc->sc_mib_local.Add_PLCP_Dis = 0; 1343 sc->sc_mib_local.MAC_Hdr_Prsv = 1; 1344 sc->sc_mib_local.Rx_Mgmt_Que_En = 0; 1345 sc->sc_mib_local.Re_Assembly_Dis = 1; 1346 sc->sc_mib_local.Strip_PLCP_Dis = 0; 1347 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1348 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1349 sc->sc_mib_local.Check_Seq_Cntl_Dis = 1; 1350 sc->sc_mib_local.Flush_CFP_Queue_On_CF_End = 0; 1351 sc->sc_mib_local.Network_Mode = 1; 1352 sc->sc_mib_local.PWD_Lvl = 0; 1353 sc->sc_mib_local.CFP_Mode = 0; 1354 1355 /* allocate buffers */ 1356 sc->sc_txbase = AWI_BUFFERS; 1357 sc->sc_txend = sc->sc_txbase + 1358 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1359 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1360 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1361 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1362 sc->sc_txend - sc->sc_txbase); 1363 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1364 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1365 AWI_BUFFERS_END - sc->sc_txend); 1366 sc->sc_mib_local.Acting_as_AP = 0; 1367 sc->sc_mib_local.Fill_CFP = 0; 1368 1369 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1370 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1371 1372 sc->sc_mib_mgt.aPower_Mgt_Mode = 0; 1373 sc->sc_mib_mgt.aDTIM_Period = 1; 1374 LE_WRITE_2(&sc->sc_mib_mgt.aATIM_Window, 0); 1375 return 0; 1376 } 1377 1378 static int 1379 awi_chan_check(void *arg, u_char *chanreq) 1380 { 1381 struct awi_softc *sc = arg; 1382 int i; 1383 struct awi_chanset *cs; 1384 u_char chanlist[(IEEE80211_CHAN_MAX+1)/NBBY]; 1385 1386 for (cs = awi_chanset; cs->cs_type != 0; cs++) { 1387 if (cs->cs_type != sc->sc_mib_phy.IEEE_PHY_Type) 1388 continue; 1389 memset(chanlist, 0, sizeof(chanlist)); 1390 for (i = 0; ; i++) { 1391 if (i == IEEE80211_CHAN_MAX) { 1392 sc->sc_mib_phy.aCurrent_Reg_Domain = 1393 cs->cs_region; 1394 memcpy(sc->sc_ic.ic_chan_avail, chanlist, 1395 sizeof(sc->sc_ic.ic_chan_avail)); 1396 sc->sc_ic.ic_bss.ni_chan = cs->cs_def; 1397 sc->sc_cur_chan = cs->cs_def; 1398 return 0; 1399 } 1400 if (i >= cs->cs_min && i <= cs->cs_max) 1401 setbit(chanlist, i); 1402 else if (isset(chanreq, i)) 1403 break; 1404 } 1405 } 1406 return EINVAL; 1407 } 1408 1409 static int 1410 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1411 { 1412 int error; 1413 u_int8_t size, *ptr; 1414 1415 switch (mib) { 1416 case AWI_MIB_LOCAL: 1417 ptr = (u_int8_t *)&sc->sc_mib_local; 1418 size = sizeof(sc->sc_mib_local); 1419 break; 1420 case AWI_MIB_ADDR: 1421 ptr = (u_int8_t *)&sc->sc_mib_addr; 1422 size = sizeof(sc->sc_mib_addr); 1423 break; 1424 case AWI_MIB_MAC: 1425 ptr = (u_int8_t *)&sc->sc_mib_mac; 1426 size = sizeof(sc->sc_mib_mac); 1427 break; 1428 case AWI_MIB_STAT: 1429 ptr = (u_int8_t *)&sc->sc_mib_stat; 1430 size = sizeof(sc->sc_mib_stat); 1431 break; 1432 case AWI_MIB_MGT: 1433 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1434 size = sizeof(sc->sc_mib_mgt); 1435 break; 1436 case AWI_MIB_PHY: 1437 ptr = (u_int8_t *)&sc->sc_mib_phy; 1438 size = sizeof(sc->sc_mib_phy); 1439 break; 1440 default: 1441 return EINVAL; 1442 } 1443 if (sc->sc_cmd_inprog) { 1444 if ((error = awi_cmd_wait(sc)) != 0) { 1445 if (error == EWOULDBLOCK) 1446 DPRINTF(("awi_mib: cmd %d inprog", 1447 sc->sc_cmd_inprog)); 1448 return error; 1449 } 1450 } 1451 sc->sc_cmd_inprog = cmd; 1452 if (cmd == AWI_CMD_SET_MIB) 1453 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1454 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1455 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1456 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1457 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1458 return error; 1459 if (cmd == AWI_CMD_GET_MIB) { 1460 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1461 #ifdef AWI_DEBUG 1462 if (awi_debug) { 1463 int i; 1464 1465 printf("awi_mib: #%d:", mib); 1466 for (i = 0; i < size; i++) 1467 printf(" %02x", ptr[i]); 1468 printf("\n"); 1469 } 1470 #endif 1471 } 1472 return 0; 1473 } 1474 1475 static int 1476 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1477 { 1478 u_int8_t status; 1479 int error = 0; 1480 #ifdef AWI_DEBUG 1481 static const char *cmdname[] = { 1482 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1483 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1484 }; 1485 #endif 1486 1487 #ifdef AWI_DEBUG 1488 if (awi_debug > 1) { 1489 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1490 printf("awi_cmd: #%d", cmd); 1491 else 1492 printf("awi_cmd: %s", cmdname[cmd]); 1493 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1494 } 1495 #endif 1496 sc->sc_cmd_inprog = cmd; 1497 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1498 awi_write_1(sc, AWI_CMD, cmd); 1499 if (wflag == AWI_NOWAIT) 1500 return EINPROGRESS; 1501 if ((error = awi_cmd_wait(sc)) != 0) 1502 return error; 1503 status = awi_read_1(sc, AWI_CMD_STATUS); 1504 awi_write_1(sc, AWI_CMD, 0); 1505 switch (status) { 1506 case AWI_STAT_OK: 1507 break; 1508 case AWI_STAT_BADPARM: 1509 return EINVAL; 1510 default: 1511 printf("%s: command %d failed %x\n", 1512 sc->sc_dev.dv_xname, cmd, status); 1513 return ENXIO; 1514 } 1515 return 0; 1516 } 1517 1518 static int 1519 awi_cmd_wait(struct awi_softc *sc) 1520 { 1521 int i, error = 0; 1522 1523 i = 0; 1524 while (sc->sc_cmd_inprog) { 1525 if (sc->sc_invalid) 1526 return ENXIO; 1527 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1528 printf("%s: failed to access hardware\n", 1529 sc->sc_dev.dv_xname); 1530 sc->sc_invalid = 1; 1531 return ENXIO; 1532 } 1533 if (sc->sc_cansleep) { 1534 sc->sc_sleep_cnt++; 1535 error = tsleep(sc, PWAIT, "awicmd", 1536 AWI_CMD_TIMEOUT*hz/1000); 1537 sc->sc_sleep_cnt--; 1538 } else { 1539 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1540 awi_cmd_done(sc); 1541 break; 1542 } 1543 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1544 error = EWOULDBLOCK; 1545 else 1546 DELAY(10); 1547 } 1548 if (error) 1549 break; 1550 } 1551 if (error) { 1552 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1553 sc->sc_cmd_inprog, error)); 1554 } 1555 return error; 1556 } 1557 1558 static void 1559 awi_cmd_done(struct awi_softc *sc) 1560 { 1561 u_int8_t cmd, status; 1562 1563 status = awi_read_1(sc, AWI_CMD_STATUS); 1564 if (status == AWI_STAT_IDLE) 1565 return; /* stray interrupt */ 1566 1567 cmd = sc->sc_cmd_inprog; 1568 sc->sc_cmd_inprog = 0; 1569 wakeup(sc); 1570 awi_write_1(sc, AWI_CMD, 0); 1571 1572 if (status != AWI_STAT_OK) { 1573 printf("%s: command %d failed %x\n", 1574 sc->sc_dev.dv_xname, cmd, status); 1575 sc->sc_substate = AWI_ST_NONE; 1576 return; 1577 } 1578 if (sc->sc_substate != AWI_ST_NONE) 1579 (void)ieee80211_new_state(&sc->sc_ic.ic_if, sc->sc_nstate, -1); 1580 } 1581 1582 static int 1583 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1584 { 1585 u_int32_t txd, ntxd, frame; 1586 1587 txd = sc->sc_txnext; 1588 frame = txd + AWI_TXD_SIZE; 1589 if (frame + len > sc->sc_txend) 1590 frame = sc->sc_txbase; 1591 ntxd = frame + len; 1592 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1593 ntxd = sc->sc_txbase; 1594 *framep = frame; 1595 *ntxdp = ntxd; 1596 /* 1597 * Determine if there are any room in ring buffer. 1598 * --- send wait, === new data, +++ conflict (ENOBUFS) 1599 * base........................end 1600 * done----txd=====ntxd OK 1601 * --txd=====done++++ntxd-- full 1602 * --txd=====ntxd done-- OK 1603 * ==ntxd done----txd=== OK 1604 * ==done++++ntxd----txd=== full 1605 * ++ntxd txd=====done++ full 1606 */ 1607 if (txd < ntxd) { 1608 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1609 return ENOBUFS; 1610 } else { 1611 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1612 return ENOBUFS; 1613 } 1614 return 0; 1615 } 1616 1617 static int 1618 awi_lock(struct awi_softc *sc) 1619 { 1620 int error = 0; 1621 1622 if (curproc == NULL) { 1623 /* 1624 * XXX 1625 * Though driver ioctl should be called with context, 1626 * KAME ipv6 stack calls ioctl in interrupt for now. 1627 * We simply abort the request if there are other 1628 * ioctl requests in progress. 1629 */ 1630 if (sc->sc_busy) { 1631 return EWOULDBLOCK; 1632 if (sc->sc_invalid) 1633 return ENXIO; 1634 } 1635 sc->sc_busy = 1; 1636 sc->sc_cansleep = 0; 1637 return 0; 1638 } 1639 while (sc->sc_busy) { 1640 if (sc->sc_invalid) 1641 return ENXIO; 1642 sc->sc_sleep_cnt++; 1643 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1644 sc->sc_sleep_cnt--; 1645 if (error) 1646 return error; 1647 } 1648 sc->sc_busy = 1; 1649 sc->sc_cansleep = 1; 1650 return 0; 1651 } 1652 1653 static void 1654 awi_unlock(struct awi_softc *sc) 1655 { 1656 sc->sc_busy = 0; 1657 sc->sc_cansleep = 0; 1658 if (sc->sc_sleep_cnt) 1659 wakeup(sc); 1660 } 1661 1662 static int 1663 awi_intr_lock(struct awi_softc *sc) 1664 { 1665 u_int8_t status; 1666 int i, retry; 1667 1668 status = 1; 1669 for (retry = 0; retry < 10; retry++) { 1670 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1671 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1672 break; 1673 DELAY(5); 1674 } 1675 if (status != 0) 1676 break; 1677 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1678 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1679 break; 1680 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1681 } 1682 if (status != 0) { 1683 printf("%s: failed to lock interrupt\n", 1684 sc->sc_dev.dv_xname); 1685 return ENXIO; 1686 } 1687 return 0; 1688 } 1689 1690 static void 1691 awi_intr_unlock(struct awi_softc *sc) 1692 { 1693 1694 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1695 } 1696 1697 static int 1698 awi_newstate(void *arg, enum ieee80211_state nstate) 1699 { 1700 struct awi_softc *sc = arg; 1701 struct ieee80211com *ic = &sc->sc_ic; 1702 struct ieee80211_node *ni; 1703 struct ifnet *ifp = &ic->ic_if; 1704 int error; 1705 u_int8_t newmode; 1706 enum ieee80211_state ostate; 1707 #ifdef AWI_DEBUG 1708 static const char *stname[] = 1709 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1710 static const char *substname[] = 1711 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1712 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1713 #endif /* AWI_DEBUG */ 1714 1715 ostate = ic->ic_state; 1716 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1717 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1718 1719 /* set LED */ 1720 switch (nstate) { 1721 case IEEE80211_S_INIT: 1722 awi_drvstate(sc, AWI_DRV_RESET); 1723 break; 1724 case IEEE80211_S_SCAN: 1725 if (ic->ic_opmode == IEEE80211_M_ADHOC) 1726 awi_drvstate(sc, AWI_DRV_ADHSC); 1727 else 1728 awi_drvstate(sc, AWI_DRV_INFSY); 1729 break; 1730 case IEEE80211_S_AUTH: 1731 awi_drvstate(sc, AWI_DRV_INFSY); 1732 break; 1733 case IEEE80211_S_ASSOC: 1734 awi_drvstate(sc, AWI_DRV_INFAUTH); 1735 break; 1736 case IEEE80211_S_RUN: 1737 if (ic->ic_opmode == IEEE80211_M_ADHOC) 1738 awi_drvstate(sc, AWI_DRV_ADHSY); 1739 else 1740 awi_drvstate(sc, AWI_DRV_INFASSOC); 1741 break; 1742 } 1743 1744 if (nstate == IEEE80211_S_INIT) { 1745 sc->sc_substate = AWI_ST_NONE; 1746 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1747 return 0; 1748 } 1749 1750 /* state transition */ 1751 if (nstate == IEEE80211_S_SCAN) { 1752 /* SCAN substate */ 1753 if (sc->sc_substate == AWI_ST_NONE) { 1754 sc->sc_nstate = nstate; /* next state in transition */ 1755 sc->sc_substate = AWI_ST_SCAN_INIT; 1756 } 1757 switch (sc->sc_substate) { 1758 case AWI_ST_SCAN_INIT: 1759 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1760 switch (ostate) { 1761 case IEEE80211_S_RUN: 1762 /* beacon miss */ 1763 if (ifp->if_flags & IFF_DEBUG) 1764 printf("%s: no recent beacons from %s;" 1765 " rescanning\n", 1766 ifp->if_xname, 1767 ether_sprintf(ic->ic_bss.ni_bssid)); 1768 /* FALLTHRU */ 1769 case IEEE80211_S_AUTH: 1770 case IEEE80211_S_ASSOC: 1771 /* timeout restart scan */ 1772 ieee80211_free_allnodes(ic); 1773 /* FALLTHRU */ 1774 case IEEE80211_S_INIT: 1775 ic->ic_flags |= IEEE80211_F_ASCAN; 1776 ic->ic_scan_timer = 0; 1777 /* FALLTHRU */ 1778 case IEEE80211_S_SCAN: 1779 /* scan next */ 1780 break; 1781 } 1782 if (ic->ic_flags & IEEE80211_F_ASCAN) 1783 newmode = AWI_SCAN_ACTIVE; 1784 else 1785 newmode = AWI_SCAN_PASSIVE; 1786 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1787 sc->sc_mib_mgt.aScan_Mode = newmode; 1788 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1789 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1790 break; 1791 } 1792 /* FALLTHRU */ 1793 case AWI_ST_SCAN_SETMIB: 1794 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1795 if (sc->sc_cmd_inprog) { 1796 if ((error = awi_cmd_wait(sc)) != 0) 1797 break; 1798 } 1799 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1800 ni = &ic->ic_bss; 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(ni->ni_chan)); 1807 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1808 IEEE80211_FH_CHANPAT(ni->ni_chan)); 1809 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1810 } else { 1811 awi_write_1(sc, AWI_CA_SCAN_SET, ni->ni_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 = ni->ni_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 ni = &ic->ic_bss; 1849 switch (sc->sc_substate) { 1850 case AWI_ST_SUB_INIT: 1851 sc->sc_substate = AWI_ST_SUB_SETSS; 1852 IEEE80211_ADDR_COPY(&sc->sc_mib_mgt.aCurrent_BSS_ID, 1853 ni->ni_bssid); 1854 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 1855 AWI_ESS_ID_SIZE); 1856 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 1857 IEEE80211_ELEMID_SSID; 1858 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = ni->ni_esslen; 1859 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 1860 ni->ni_essid, ni->ni_esslen); 1861 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 1862 ni->ni_intval); 1863 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 1864 AWI_NOWAIT)) != 0) 1865 break; 1866 /* FALLTHRU */ 1867 case AWI_ST_SUB_SETSS: 1868 sc->sc_substate = AWI_ST_SUB_SYNC; 1869 if (sc->sc_cmd_inprog) { 1870 if ((error = awi_cmd_wait(sc)) != 0) 1871 break; 1872 } 1873 sc->sc_cmd_inprog = AWI_CMD_SYNC; 1874 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1875 awi_write_1(sc, AWI_CA_SYNC_SET, 1876 IEEE80211_FH_CHANSET(ni->ni_chan)); 1877 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 1878 IEEE80211_FH_CHANPAT(ni->ni_chan)); 1879 awi_write_1(sc, AWI_CA_SYNC_IDX, 1880 ni->ni_fhindex); 1881 awi_write_2(sc, AWI_CA_SYNC_DWELL, 1882 ni->ni_fhdwell); 1883 } else { 1884 awi_write_1(sc, AWI_CA_SYNC_SET, ni->ni_chan); 1885 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 1886 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 1887 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 1888 } 1889 if ((ic->ic_flags & IEEE80211_F_SIBSS) && 1890 !sc->sc_no_bssid) 1891 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 1892 else 1893 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 1894 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 1895 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 1896 ni->ni_tstamp, 8); 1897 awi_write_4(sc, AWI_CA_SYNC_REFTIME, ni->ni_rstamp); 1898 sc->sc_cur_chan = ni->ni_chan; 1899 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 1900 != 0) 1901 break; 1902 /* FALLTHRU */ 1903 case AWI_ST_SUB_SYNC: 1904 sc->sc_substate = AWI_ST_NONE; 1905 if (ic->ic_flags & IEEE80211_F_SIBSS) { 1906 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 1907 AWI_MIB_MGT, AWI_WAIT)) != 0) 1908 break; 1909 IEEE80211_ADDR_COPY(ni->ni_bssid, 1910 &sc->sc_mib_mgt.aCurrent_BSS_ID); 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_node *ni = &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(ni->ni_txseq << IEEE80211_SEQ_SEQ_SHIFT); 1956 ni->ni_txseq++; 1957 if (ic->ic_opmode == IEEE80211_M_ADHOC) { 1958 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1959 if (sc->sc_adhoc_ap) 1960 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_macaddr); 1961 else 1962 IEEE80211_ADDR_COPY(wh->i_addr1, eh->ether_dhost); 1963 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 1964 IEEE80211_ADDR_COPY(wh->i_addr3, ni->ni_bssid); 1965 } else { 1966 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 1967 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_bssid); 1968 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 1969 IEEE80211_ADDR_COPY(wh->i_addr3, eh->ether_dhost); 1970 } 1971 return m; 1972 } 1973 1974 static struct mbuf * 1975 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 1976 { 1977 struct ieee80211com *ic = &sc->sc_ic; 1978 struct ether_header eh; 1979 struct ieee80211_frame wh; 1980 struct llc *llc; 1981 1982 if (m->m_len < sizeof(wh) + sizeof(eh)) { 1983 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 1984 if (m == NULL) 1985 return NULL; 1986 } 1987 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 1988 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 1989 return m; 1990 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 1991 m_adj(m, sizeof(eh) - sizeof(*llc)); 1992 if (ic->ic_opmode == IEEE80211_M_ADHOC) 1993 IEEE80211_ADDR_COPY(wh.i_addr2, eh.ether_shost); 1994 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 1995 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 1996 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 1997 llc->llc_control = LLC_UI; 1998 llc->llc_snap.org_code[0] = 0; 1999 llc->llc_snap.org_code[1] = 0; 2000 llc->llc_snap.org_code[2] = 0; 2001 llc->llc_snap.ether_type = eh.ether_type; 2002 return m; 2003 } 2004
Indexes created Sun Oct 19 02:09:48 GMT 2025