awi.c revision 1.58
1 /* $NetBSD: awi.c,v 1.58 2003/11/02 11:07:45 wiz 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 1.58 2003/11/02 11:07:45 wiz 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> 109 110 #include <net80211/ieee80211_var.h> 111 #include <net80211/ieee80211_compat.h> 112 113 #ifdef INET 114 #include <netinet/in.h> 115 #include <netinet/in_systm.h> 116 #ifdef __NetBSD__ 117 #include <netinet/if_inarp.h> 118 #else 119 #include <netinet/if_ether.h> 120 #endif 121 #endif 122 123 #if NBPFILTER > 0 124 #include <net/bpf.h> 125 #endif 126 127 #include <machine/cpu.h> 128 #include <machine/bus.h> 129 #include <machine/intr.h> 130 131 #include <dev/ic/am79c930reg.h> 132 #include <dev/ic/am79c930var.h> 133 #include <dev/ic/awireg.h> 134 #include <dev/ic/awivar.h> 135 136 static int awi_init(struct ifnet *); 137 static void awi_stop(struct ifnet *, int); 138 static void awi_start(struct ifnet *); 139 static void awi_watchdog(struct ifnet *); 140 static int awi_ioctl(struct ifnet *, u_long, caddr_t); 141 static int awi_media_change(struct ifnet *); 142 static void awi_media_status(struct ifnet *, struct ifmediareq *); 143 static int awi_mode_init(struct awi_softc *); 144 static void awi_rx_int(struct awi_softc *); 145 static void awi_tx_int(struct awi_softc *); 146 static struct mbuf *awi_devget(struct awi_softc *, u_int32_t, u_int16_t); 147 static int awi_hw_init(struct awi_softc *); 148 static int awi_init_mibs(struct awi_softc *); 149 static int awi_mib(struct awi_softc *, u_int8_t, u_int8_t, int); 150 static int awi_cmd(struct awi_softc *, u_int8_t, int); 151 static int awi_cmd_wait(struct awi_softc *); 152 static void awi_cmd_done(struct awi_softc *); 153 static int awi_next_txd(struct awi_softc *, int, u_int32_t *, u_int32_t *); 154 static int awi_lock(struct awi_softc *); 155 static void awi_unlock(struct awi_softc *); 156 static int awi_intr_lock(struct awi_softc *); 157 static void awi_intr_unlock(struct awi_softc *); 158 static int awi_newstate(struct ieee80211com *, enum ieee80211_state, int); 159 static void awi_recv_mgmt(struct ieee80211com *, struct mbuf *, 160 struct ieee80211_node *, int, int, u_int32_t); 161 static int awi_send_mgmt(struct ieee80211com *, struct ieee80211_node *, int, 162 int); 163 static struct mbuf *awi_ether_encap(struct awi_softc *, struct mbuf *); 164 static struct mbuf *awi_ether_modcap(struct awi_softc *, struct mbuf *); 165 166 /* unaligned little endian access */ 167 #define LE_READ_2(p) \ 168 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)) 169 #define LE_READ_4(p) \ 170 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \ 171 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)) 172 #define LE_WRITE_2(p, v) \ 173 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 174 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff))) 175 #define LE_WRITE_4(p, v) \ 176 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 177 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff)), \ 178 (((u_int8_t *)(p))[2] = (((u_int32_t)(v) >> 16) & 0xff)), \ 179 (((u_int8_t *)(p))[3] = (((u_int32_t)(v) >> 24) & 0xff))) 180 181 struct awi_chanset awi_chanset[] = { 182 /* PHY type domain min max def */ 183 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_JP, 6, 17, 6 }, 184 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_ES, 0, 26, 1 }, 185 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_FR, 0, 32, 1 }, 186 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_US, 0, 77, 1 }, 187 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_CA, 0, 77, 1 }, 188 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_EU, 0, 77, 1 }, 189 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_JP, 14, 14, 14 }, 190 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_ES, 10, 11, 10 }, 191 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_FR, 10, 13, 10 }, 192 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_US, 1, 11, 3 }, 193 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_CA, 1, 11, 3 }, 194 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_EU, 1, 13, 3 }, 195 { 0, 0 } 196 }; 197 198 #ifdef AWI_DEBUG 199 int awi_debug; 200 201 #define DPRINTF(X) if (awi_debug) printf X 202 #define DPRINTF2(X) if (awi_debug > 1) printf X 203 #else 204 #define DPRINTF(X) 205 #define DPRINTF2(X) 206 #endif 207 208 int 209 awi_attach(struct awi_softc *sc) 210 { 211 struct ieee80211com *ic = &sc->sc_ic; 212 struct ifnet *ifp = &ic->ic_if; 213 int s, i, error, nrate; 214 int mword; 215 216 s = splnet(); 217 sc->sc_busy = 1; 218 sc->sc_substate = AWI_ST_NONE; 219 if ((error = awi_hw_init(sc)) != 0) { 220 sc->sc_invalid = 1; 221 splx(s); 222 return error; 223 } 224 error = awi_init_mibs(sc); 225 if (error != 0) { 226 sc->sc_invalid = 1; 227 splx(s); 228 return error; 229 } 230 ifp->if_softc = sc; 231 ifp->if_flags = 232 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST | IFF_NOTRAILERS; 233 ifp->if_ioctl = awi_ioctl; 234 ifp->if_start = awi_start; 235 ifp->if_init = awi_init; 236 ifp->if_stop = awi_stop; 237 ifp->if_watchdog = awi_watchdog; 238 IFQ_SET_READY(&ifp->if_snd); 239 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 240 241 ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP; 242 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) 243 ic->ic_phytype = IEEE80211_T_FH; 244 else { 245 ic->ic_phytype = IEEE80211_T_DS; 246 ic->ic_caps |= IEEE80211_C_AHDEMO; 247 } 248 ic->ic_opmode = IEEE80211_M_STA; 249 nrate = sc->sc_mib_phy.aSuprt_Data_Rates[1]; 250 memcpy(ic->ic_sup_rates[IEEE80211_MODE_FH].rs_rates, 251 sc->sc_mib_phy.aSuprt_Data_Rates + 2, nrate); 252 ic->ic_sup_rates[IEEE80211_MODE_FH].rs_nrates = nrate; 253 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address); 254 255 printf("%s: IEEE802.11 %s (firmware %s)\n", sc->sc_dev.dv_xname, 256 (ic->ic_phytype == IEEE80211_T_FH) ? "FH" : "DS", sc->sc_banner); 257 printf("%s: 802.11 address: %s\n", sc->sc_dev.dv_xname, 258 ether_sprintf(ic->ic_myaddr)); 259 260 if_attach(ifp); 261 ieee80211_ifattach(ifp); 262 263 sc->sc_newstate = ic->ic_newstate; 264 ic->ic_newstate = awi_newstate; 265 #if 0 266 ic->ic_chancheck = awi_chan_check; 267 #endif 268 269 sc->sc_recv_mgmt = ic->ic_recv_mgmt; 270 ic->ic_recv_mgmt = awi_recv_mgmt; 271 272 sc->sc_send_mgmt = ic->ic_send_mgmt; 273 ic->ic_send_mgmt = awi_send_mgmt; 274 275 ieee80211_media_init(ifp, awi_media_change, awi_media_status); 276 277 /* Melco compatibility mode. */ 278 #define ADD(s, o) ifmedia_add(&ic->ic_media, \ 279 IFM_MAKEWORD(IFM_IEEE80211, (s), (o), 0), 0, NULL) 280 ADD(IFM_AUTO, IFM_FLAG0); 281 282 for (i = 0; i < nrate; i++) { 283 mword = ieee80211_rate2media(ic, 284 ic->ic_sup_rates[IEEE80211_MODE_FH].rs_rates[i], 285 (ic->ic_phytype == IEEE80211_T_FH) ? IEEE80211_MODE_FH 286 : IEEE80211_MODE_11B); 287 if (mword == 0) 288 continue; 289 ADD(mword, IFM_FLAG0); 290 } 291 #undef ADD 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 ieee80211_ifdetach(ifp); 325 if_detach(ifp); 326 shutdownhook_disestablish(sc->sc_sdhook); 327 powerhook_disestablish(sc->sc_powerhook); 328 splx(s); 329 return 0; 330 } 331 332 int 333 awi_activate(struct device *self, enum devact act) 334 { 335 struct awi_softc *sc = (struct awi_softc *)self; 336 struct ifnet *ifp = &sc->sc_ic.ic_if; 337 int s, error = 0; 338 339 s = splnet(); 340 switch (act) { 341 case DVACT_ACTIVATE: 342 error = EOPNOTSUPP; 343 break; 344 case DVACT_DEACTIVATE: 345 sc->sc_invalid = 1; 346 if_deactivate(ifp); 347 break; 348 } 349 splx(s); 350 return error; 351 } 352 353 void 354 awi_power(int why, void *arg) 355 { 356 struct awi_softc *sc = arg; 357 struct ifnet *ifp = &sc->sc_ic.ic_if; 358 int s; 359 int ocansleep; 360 361 DPRINTF(("awi_power: %d\n", why)); 362 s = splnet(); 363 ocansleep = sc->sc_cansleep; 364 sc->sc_cansleep = 0; 365 switch (why) { 366 case PWR_SUSPEND: 367 case PWR_STANDBY: 368 awi_stop(ifp, 1); 369 break; 370 case PWR_RESUME: 371 if (ifp->if_flags & IFF_UP) { 372 awi_init(ifp); 373 (void)awi_intr(sc); /* make sure */ 374 } 375 break; 376 case PWR_SOFTSUSPEND: 377 case PWR_SOFTSTANDBY: 378 case PWR_SOFTRESUME: 379 break; 380 } 381 sc->sc_cansleep = ocansleep; 382 splx(s); 383 } 384 385 void 386 awi_shutdown(void *arg) 387 { 388 struct awi_softc *sc = arg; 389 struct ifnet *ifp = &sc->sc_ic.ic_if; 390 391 if (sc->sc_attached) 392 awi_stop(ifp, 1); 393 } 394 395 int 396 awi_intr(void *arg) 397 { 398 struct awi_softc *sc = arg; 399 u_int16_t status; 400 int handled = 0, ocansleep; 401 #ifdef AWI_DEBUG 402 static const char *intname[] = { 403 "CMD", "RX", "TX", "SCAN_CMPLT", 404 "CFP_START", "DTIM", "CFP_ENDING", "GROGGY", 405 "TXDATA", "TXBCAST", "TXPS", "TXCF", 406 "TXMGT", "#13", "RXDATA", "RXMGT" 407 }; 408 #endif 409 410 if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid) 411 return 0; 412 413 am79c930_gcr_setbits(&sc->sc_chip, 414 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 415 awi_write_1(sc, AWI_DIS_PWRDN, 1); 416 ocansleep = sc->sc_cansleep; 417 sc->sc_cansleep = 0; 418 419 for (;;) { 420 if (awi_intr_lock(sc) != 0) 421 break; 422 status = awi_read_1(sc, AWI_INTSTAT); 423 awi_write_1(sc, AWI_INTSTAT, 0); 424 awi_write_1(sc, AWI_INTSTAT, 0); 425 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 426 awi_write_1(sc, AWI_INTSTAT2, 0); 427 DELAY(10); 428 awi_intr_unlock(sc); 429 if (!sc->sc_cmd_inprog) 430 status &= ~AWI_INT_CMD; /* make sure */ 431 if (status == 0) 432 break; 433 #ifdef AWI_DEBUG 434 if (awi_debug > 1) { 435 int i; 436 437 printf("awi_intr: status 0x%04x", status); 438 for (i = 0; i < sizeof(intname)/sizeof(intname[0]); 439 i++) { 440 if (status & (1 << i)) 441 printf(" %s", intname[i]); 442 } 443 printf("\n"); 444 } 445 #endif 446 handled = 1; 447 if (status & AWI_INT_RX) 448 awi_rx_int(sc); 449 if (status & AWI_INT_TX) 450 awi_tx_int(sc); 451 if (status & AWI_INT_CMD) 452 awi_cmd_done(sc); 453 if (status & AWI_INT_SCAN_CMPLT) { 454 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN && 455 sc->sc_substate == AWI_ST_NONE) 456 ieee80211_next_scan(&sc->sc_ic.ic_if); 457 } 458 } 459 sc->sc_cansleep = ocansleep; 460 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 461 awi_write_1(sc, AWI_DIS_PWRDN, 0); 462 return handled; 463 } 464 465 static int 466 awi_init(struct ifnet *ifp) 467 { 468 struct awi_softc *sc = ifp->if_softc; 469 struct ieee80211com *ic = &sc->sc_ic; 470 struct ieee80211_node *ni = ic->ic_bss; 471 int error; 472 473 DPRINTF(("awi_init: enabled=%d\n", sc->sc_enabled)); 474 if (sc->sc_enabled) { 475 awi_stop(ifp, 0); 476 } else { 477 if (sc->sc_enable) 478 (*sc->sc_enable)(sc); 479 sc->sc_enabled = 1; 480 if ((error = awi_hw_init(sc)) != 0) { 481 awi_stop(ifp, 1); 482 return error; 483 } 484 } 485 ic->ic_state = IEEE80211_S_INIT; 486 487 ic->ic_flags &= ~IEEE80211_F_IBSSON; 488 switch (ic->ic_opmode) { 489 case IEEE80211_M_STA: 490 sc->sc_mib_local.Network_Mode = 1; 491 sc->sc_mib_local.Acting_as_AP = 0; 492 break; 493 case IEEE80211_M_IBSS: 494 ic->ic_flags |= IEEE80211_F_IBSSON; 495 case IEEE80211_M_AHDEMO: 496 sc->sc_mib_local.Network_Mode = 0; 497 sc->sc_mib_local.Acting_as_AP = 0; 498 break; 499 case IEEE80211_M_HOSTAP: 500 sc->sc_mib_local.Network_Mode = 1; 501 sc->sc_mib_local.Acting_as_AP = 1; 502 break; 503 case IEEE80211_M_MONITOR: 504 return ENODEV; 505 } 506 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 507 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 508 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 509 sc->sc_mib_mac.aDesired_ESS_ID[1] = ic->ic_des_esslen; 510 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], ic->ic_des_essid, 511 ic->ic_des_esslen); 512 513 if ((error = awi_mode_init(sc)) != 0) { 514 DPRINTF(("awi_init: awi_mode_init failed %d\n", error)); 515 awi_stop(ifp, 1); 516 return error; 517 } 518 519 /* start transmitter */ 520 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 521 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 522 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 523 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 524 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 525 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 526 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 527 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 528 awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); 529 awi_write_4(sc, AWI_CA_TX_MGT, 0); 530 awi_write_4(sc, AWI_CA_TX_BCAST, 0); 531 awi_write_4(sc, AWI_CA_TX_PS, 0); 532 awi_write_4(sc, AWI_CA_TX_CF, 0); 533 if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { 534 DPRINTF(("awi_init: failed to start transmitter: %d\n", error)); 535 awi_stop(ifp, 1); 536 return error; 537 } 538 539 /* start receiver */ 540 if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { 541 DPRINTF(("awi_init: failed to start receiver: %d\n", error)); 542 awi_stop(ifp, 1); 543 return error; 544 } 545 sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); 546 sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); 547 548 ifp->if_flags |= IFF_RUNNING; 549 ifp->if_flags &= ~IFF_OACTIVE; 550 ic->ic_state = IEEE80211_S_INIT; 551 552 if (ic->ic_opmode == IEEE80211_M_AHDEMO || 553 ic->ic_opmode == IEEE80211_M_HOSTAP) { 554 ni->ni_chan = ic->ic_ibss_chan; 555 ni->ni_intval = ic->ic_lintval; 556 ni->ni_rssi = 0; 557 ni->ni_rstamp = 0; 558 memset(ni->ni_tstamp, 0, sizeof(ni->ni_tstamp)); 559 ni->ni_rates = 560 ic->ic_sup_rates[ieee80211_chan2mode(ic, ni->ni_chan)]; 561 IEEE80211_ADDR_COPY(ni->ni_macaddr, ic->ic_myaddr); 562 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 563 IEEE80211_ADDR_COPY(ni->ni_bssid, ic->ic_myaddr); 564 ni->ni_esslen = ic->ic_des_esslen; 565 memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); 566 ni->ni_capinfo = IEEE80211_CAPINFO_ESS; 567 if (ic->ic_phytype == IEEE80211_T_FH) { 568 ni->ni_fhdwell = 200; /* XXX */ 569 ni->ni_fhindex = 1; 570 } 571 } else { 572 ni->ni_capinfo = IEEE80211_CAPINFO_IBSS; 573 memset(ni->ni_bssid, 0, IEEE80211_ADDR_LEN); 574 ni->ni_esslen = 0; 575 } 576 if (ic->ic_flags & IEEE80211_F_WEPON) 577 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 578 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 579 ic->ic_flags |= IEEE80211_F_SIBSS; 580 ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ 581 sc->sc_substate = AWI_ST_NONE; 582 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 583 } else { 584 /* XXX check sc->sc_cur_chan */ 585 ni->ni_chan = &ic->ic_channels[sc->sc_cur_chan]; 586 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 587 } 588 return 0; 589 } 590 591 static void 592 awi_stop(struct ifnet *ifp, int disable) 593 { 594 struct awi_softc *sc = ifp->if_softc; 595 596 if (!sc->sc_enabled) 597 return; 598 599 DPRINTF(("awi_stop(%d)\n", disable)); 600 601 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); 602 603 if (!sc->sc_invalid) { 604 if (sc->sc_cmd_inprog) 605 (void)awi_cmd_wait(sc); 606 (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); 607 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 608 awi_write_1(sc, AWI_CA_FTX_DATA, 1); 609 awi_write_1(sc, AWI_CA_FTX_MGT, 0); 610 awi_write_1(sc, AWI_CA_FTX_BCAST, 0); 611 awi_write_1(sc, AWI_CA_FTX_PS, 0); 612 awi_write_1(sc, AWI_CA_FTX_CF, 0); 613 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); 614 } 615 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 616 ifp->if_timer = 0; 617 sc->sc_tx_timer = sc->sc_rx_timer = 0; 618 if (sc->sc_rxpend != NULL) { 619 m_freem(sc->sc_rxpend); 620 sc->sc_rxpend = NULL; 621 } 622 IFQ_PURGE(&ifp->if_snd); 623 624 if (disable) { 625 if (sc->sc_disable) 626 (*sc->sc_disable)(sc); 627 sc->sc_enabled = 0; 628 } 629 } 630 631 static void 632 awi_start(struct ifnet *ifp) 633 { 634 struct awi_softc *sc = ifp->if_softc; 635 struct ieee80211com *ic = &sc->sc_ic; 636 struct ieee80211_node *ni; 637 struct ieee80211_frame *wh; 638 struct mbuf *m, *m0; 639 int len, dowep; 640 u_int32_t txd, frame, ntxd; 641 u_int8_t rate; 642 643 if (!sc->sc_enabled || sc->sc_invalid) 644 return; 645 646 for (;;) { 647 txd = sc->sc_txnext; 648 IF_POLL(&ic->ic_mgtq, m0); 649 dowep = 0; 650 if (m0 != NULL) { 651 len = m0->m_pkthdr.len; 652 if (awi_next_txd(sc, len, &frame, &ntxd)) { 653 ifp->if_flags |= IFF_OACTIVE; 654 break; 655 } 656 IF_DEQUEUE(&ic->ic_mgtq, m0); 657 } else { 658 if (ic->ic_state != IEEE80211_S_RUN) 659 break; 660 IFQ_POLL(&ifp->if_snd, m0); 661 if (m0 == NULL) 662 break; 663 /* 664 * Need to calculate the real length to determine 665 * if the transmit buffer has a room for the packet. 666 */ 667 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 668 if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) 669 len += sizeof(struct llc) - 670 sizeof(struct ether_header); 671 if (ic->ic_flags & IEEE80211_F_WEPON) { 672 dowep = 1; 673 len += IEEE80211_WEP_IVLEN + 674 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 675 } 676 if (awi_next_txd(sc, len, &frame, &ntxd)) { 677 ifp->if_flags |= IFF_OACTIVE; 678 break; 679 } 680 IFQ_DEQUEUE(&ifp->if_snd, m0); 681 ifp->if_opackets++; 682 #if NBPFILTER > 0 683 if (ifp->if_bpf) 684 bpf_mtap(ifp->if_bpf, m0); 685 #endif 686 if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) 687 m0 = awi_ether_encap(sc, m0); 688 else 689 m0 = ieee80211_encap(ifp, m0, &ni); 690 if (m0 == NULL) { 691 ifp->if_oerrors++; 692 continue; 693 } 694 if (ni != NULL && ni != ic->ic_bss) 695 ieee80211_free_node(ic, ni); 696 wh = mtod(m0, struct ieee80211_frame *); 697 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) && 698 (ic->ic_opmode == IEEE80211_M_HOSTAP || 699 ic->ic_opmode == IEEE80211_M_IBSS) && 700 sc->sc_adhoc_ap == 0 && 701 (ifp->if_flags & IFF_LINK0) == 0 && 702 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 703 IEEE80211_FC0_TYPE_DATA && ni == NULL) { 704 m_freem(m0); 705 ifp->if_oerrors++; 706 continue; 707 } 708 } 709 #if NBPFILTER > 0 710 if (ic->ic_rawbpf) 711 bpf_mtap(ic->ic_rawbpf, m0); 712 #endif 713 if (dowep) { 714 if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) { 715 ifp->if_oerrors++; 716 continue; 717 } 718 } 719 #ifdef DIAGNOSTIC 720 if (m0->m_pkthdr.len != len) { 721 printf("%s: length %d should be %d\n", 722 ifp->if_xname, m0->m_pkthdr.len, len); 723 m_freem(m0); 724 ifp->if_oerrors++; 725 continue; 726 } 727 #endif 728 729 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 730 ieee80211_dump_pkt(m0->m_data, m0->m_len, 731 ic->ic_bss->ni_rates. 732 rs_rates[ic->ic_bss->ni_txrate] & 733 IEEE80211_RATE_VAL, -1); 734 735 for (m = m0, len = 0; m != NULL; m = m->m_next) { 736 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 737 m->m_len); 738 len += m->m_len; 739 } 740 m_freem(m0); 741 rate = (ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 742 IEEE80211_RATE_VAL) * 5; 743 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 744 awi_write_4(sc, txd + AWI_TXD_START, frame); 745 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 746 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 747 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 748 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 749 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 750 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 751 sc->sc_txnext = ntxd; 752 753 sc->sc_tx_timer = 5; 754 ifp->if_timer = 1; 755 } 756 } 757 758 static void 759 awi_watchdog(struct ifnet *ifp) 760 { 761 struct awi_softc *sc = ifp->if_softc; 762 u_int32_t prevdone; 763 int ocansleep; 764 765 ifp->if_timer = 0; 766 if (!sc->sc_enabled || sc->sc_invalid) 767 return; 768 769 ocansleep = sc->sc_cansleep; 770 sc->sc_cansleep = 0; 771 if (sc->sc_tx_timer) { 772 if (--sc->sc_tx_timer == 0) { 773 printf("%s: device timeout\n", ifp->if_xname); 774 prevdone = sc->sc_txdone; 775 awi_tx_int(sc); 776 if (sc->sc_txdone == prevdone) { 777 ifp->if_oerrors++; 778 awi_init(ifp); 779 goto out; 780 } 781 } 782 ifp->if_timer = 1; 783 } 784 if (sc->sc_rx_timer) { 785 if (--sc->sc_rx_timer == 0) { 786 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 787 ieee80211_new_state(&sc->sc_ic, 788 IEEE80211_S_SCAN, -1); 789 goto out; 790 } 791 } else 792 ifp->if_timer = 1; 793 } 794 /* TODO: rate control */ 795 ieee80211_watchdog(ifp); 796 out: 797 sc->sc_cansleep = ocansleep; 798 } 799 800 static int 801 awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 802 { 803 struct awi_softc *sc = ifp->if_softc; 804 struct ifreq *ifr = (struct ifreq *)data; 805 int s, error; 806 807 s = splnet(); 808 /* serialize ioctl, since we may sleep */ 809 if ((error = awi_lock(sc)) != 0) 810 goto cantlock; 811 812 switch (cmd) { 813 case SIOCSIFFLAGS: 814 if (ifp->if_flags & IFF_UP) { 815 if (sc->sc_enabled) { 816 /* 817 * To avoid rescanning another access point, 818 * do not call awi_init() here. Instead, 819 * only reflect promisc mode settings. 820 */ 821 error = awi_mode_init(sc); 822 } else 823 error = awi_init(ifp); 824 } else if (sc->sc_enabled) 825 awi_stop(ifp, 1); 826 break; 827 case SIOCSIFMEDIA: 828 case SIOCGIFMEDIA: 829 error = ifmedia_ioctl(ifp, ifr, &sc->sc_ic.ic_media, cmd); 830 break; 831 case SIOCADDMULTI: 832 case SIOCDELMULTI: 833 error = (cmd == SIOCADDMULTI) ? 834 ether_addmulti(ifr, &sc->sc_ic.ic_ec) : 835 ether_delmulti(ifr, &sc->sc_ic.ic_ec); 836 if (error == ENETRESET) { 837 /* do not rescan */ 838 if (sc->sc_enabled) 839 error = awi_mode_init(sc); 840 else 841 error = 0; 842 } 843 break; 844 default: 845 error = ieee80211_ioctl(ifp, cmd, data); 846 if (error == ENETRESET) { 847 if (sc->sc_enabled) 848 error = awi_init(ifp); 849 else 850 error = 0; 851 } 852 break; 853 } 854 awi_unlock(sc); 855 cantlock: 856 splx(s); 857 return error; 858 } 859 860 /* 861 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 862 * 863 * TBD factor with ieee80211_media_change 864 */ 865 static int 866 awi_media_change(struct ifnet *ifp) 867 { 868 struct awi_softc *sc = ifp->if_softc; 869 struct ieee80211com *ic = &sc->sc_ic; 870 struct ifmedia_entry *ime; 871 enum ieee80211_opmode newmode; 872 int i, rate, newadhoc_ap, error = 0; 873 874 ime = ic->ic_media.ifm_cur; 875 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 876 i = -1; 877 } else { 878 struct ieee80211_rateset *rs = 879 &ic->ic_sup_rates[ieee80211_chan2mode(ic, 880 ic->ic_bss->ni_chan)]; 881 rate = ieee80211_media2rate(ime->ifm_media); 882 if (rate == 0) 883 return EINVAL; 884 for (i = 0; i < rs->rs_nrates; i++) { 885 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) 886 break; 887 } 888 if (i == rs->rs_nrates) 889 return EINVAL; 890 } 891 if (ic->ic_fixed_rate != i) { 892 ic->ic_fixed_rate = i; 893 error = ENETRESET; 894 } 895 896 /* 897 * combination of mediaopt 898 * 899 * hostap adhoc flag0 opmode adhoc_ap comment 900 * + - - HOSTAP 0 HostAP 901 * - + - IBSS 0 IBSS 902 * - + + AHDEMO 0 WaveLAN adhoc 903 * - - + IBSS 1 Melco old Sta 904 * also LINK0 905 * - - - STA 0 Infra Station 906 */ 907 newadhoc_ap = 0; 908 if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 909 newmode = IEEE80211_M_HOSTAP; 910 else if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 911 if (ic->ic_phytype == IEEE80211_T_DS && 912 (ime->ifm_media & IFM_FLAG0)) 913 newmode = IEEE80211_M_AHDEMO; 914 else 915 newmode = IEEE80211_M_IBSS; 916 } else if (ime->ifm_media & IFM_FLAG0) { 917 newmode = IEEE80211_M_IBSS; 918 newadhoc_ap = 1; 919 } else 920 newmode = IEEE80211_M_STA; 921 if (ic->ic_opmode != newmode || sc->sc_adhoc_ap != newadhoc_ap) { 922 ic->ic_opmode = newmode; 923 sc->sc_adhoc_ap = newadhoc_ap; 924 error = ENETRESET; 925 } 926 927 if (error == ENETRESET) { 928 if (sc->sc_enabled) 929 error = awi_init(ifp); 930 else 931 error = 0; 932 } 933 return error; 934 } 935 936 static void 937 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 938 { 939 struct awi_softc *sc = ifp->if_softc; 940 struct ieee80211com *ic = &sc->sc_ic; 941 int rate; 942 943 imr->ifm_status = IFM_AVALID; 944 if (ic->ic_state == IEEE80211_S_RUN) 945 imr->ifm_status |= IFM_ACTIVE; 946 imr->ifm_active = IFM_IEEE80211; 947 if (ic->ic_state == IEEE80211_S_RUN) { 948 rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 949 IEEE80211_RATE_VAL; 950 } else { 951 if (ic->ic_fixed_rate == -1) 952 rate = 0; 953 else 954 rate = ic->ic_sup_rates[ 955 ieee80211_chan2mode(ic, ic->ic_bss->ni_chan)]. 956 rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 957 } 958 imr->ifm_active |= ieee80211_rate2media(ic, rate, 959 (ic->ic_phytype == IEEE80211_T_FH) ? IEEE80211_MODE_FH 960 : IEEE80211_MODE_11B); 961 switch (ic->ic_opmode) { 962 case IEEE80211_M_MONITOR: /* we should never reach here */ 963 break; 964 case IEEE80211_M_STA: 965 break; 966 case IEEE80211_M_IBSS: 967 if (sc->sc_adhoc_ap) 968 imr->ifm_active |= IFM_FLAG0; 969 else 970 imr->ifm_active |= IFM_IEEE80211_ADHOC; 971 break; 972 case IEEE80211_M_AHDEMO: 973 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 974 break; 975 case IEEE80211_M_HOSTAP: 976 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 977 break; 978 } 979 } 980 981 static int 982 awi_mode_init(struct awi_softc *sc) 983 { 984 struct ifnet *ifp = &sc->sc_ic.ic_if; 985 int n, error; 986 struct ether_multi *enm; 987 struct ether_multistep step; 988 989 /* reinitialize muticast filter */ 990 n = 0; 991 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 992 if (sc->sc_ic.ic_opmode != IEEE80211_M_HOSTAP && 993 (ifp->if_flags & IFF_PROMISC)) { 994 sc->sc_mib_mac.aPromiscuous_Enable = 1; 995 goto set_mib; 996 } 997 sc->sc_mib_mac.aPromiscuous_Enable = 0; 998 ETHER_FIRST_MULTI(step, &sc->sc_ic.ic_ec, enm); 999 while (enm != NULL) { 1000 if (n == AWI_GROUP_ADDR_SIZE || 1001 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) 1002 goto set_mib; 1003 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 1004 enm->enm_addrlo); 1005 n++; 1006 ETHER_NEXT_MULTI(step, enm); 1007 } 1008 for (; n < AWI_GROUP_ADDR_SIZE; n++) 1009 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, 1010 IEEE80211_ADDR_LEN); 1011 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1012 1013 set_mib: 1014 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 1015 ifp->if_flags &= ~IFF_ALLMULTI; 1016 else 1017 ifp->if_flags |= IFF_ALLMULTI; 1018 sc->sc_mib_mgt.Wep_Required = 1019 (sc->sc_ic.ic_flags & IEEE80211_F_WEPON) ? AWI_WEP_ON : AWI_WEP_OFF; 1020 1021 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1022 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1023 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1024 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1025 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1026 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 1027 return error; 1028 } 1029 return 0; 1030 } 1031 1032 static void 1033 awi_rx_int(struct awi_softc *sc) 1034 { 1035 struct ieee80211com *ic = &sc->sc_ic; 1036 struct ifnet *ifp = &ic->ic_if; 1037 struct ieee80211_frame *wh; 1038 struct ieee80211_node *ni; 1039 u_int8_t state, rate, rssi; 1040 u_int16_t len; 1041 u_int32_t frame, next, rstamp, rxoff; 1042 struct mbuf *m; 1043 1044 rxoff = sc->sc_rxdoff; 1045 for (;;) { 1046 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1047 if (state & AWI_RXD_ST_OWN) 1048 break; 1049 if (!(state & AWI_RXD_ST_CONSUMED)) { 1050 if (sc->sc_substate != AWI_ST_NONE) 1051 goto rx_next; 1052 if (state & AWI_RXD_ST_RXERROR) { 1053 ifp->if_ierrors++; 1054 goto rx_next; 1055 } 1056 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1057 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1058 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1059 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1060 0x7fff; 1061 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1062 m = awi_devget(sc, frame, len); 1063 if (m == NULL) { 1064 ifp->if_ierrors++; 1065 goto rx_next; 1066 } 1067 if (state & AWI_RXD_ST_LF) { 1068 /* TODO check my bss */ 1069 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1070 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1071 sc->sc_rx_timer = 10; 1072 ifp->if_timer = 1; 1073 } 1074 if ((ifp->if_flags & IFF_DEBUG) && 1075 (ifp->if_flags & IFF_LINK2)) 1076 ieee80211_dump_pkt(m->m_data, m->m_len, 1077 rate / 5, rssi); 1078 if ((ifp->if_flags & IFF_LINK0) || 1079 sc->sc_adhoc_ap) 1080 m = awi_ether_modcap(sc, m); 1081 else 1082 m = m_pullup(m, sizeof(*wh)); 1083 if (m == NULL) { 1084 ifp->if_ierrors++; 1085 goto rx_next; 1086 } 1087 wh = mtod(m, struct ieee80211_frame *); 1088 ni = ieee80211_find_rxnode(ic, wh); 1089 ieee80211_input(ifp, m, ni, rssi, rstamp); 1090 /* 1091 * The frame may have caused the 1092 * node to be marked for reclamation 1093 * (e.g. in response to a DEAUTH 1094 * message) so use free_node here 1095 * instead of unref_node. 1096 */ 1097 if (ni == ic->ic_bss) 1098 ieee80211_unref_node(&ni); 1099 else 1100 ieee80211_free_node(ic, ni); 1101 } else 1102 sc->sc_rxpend = m; 1103 rx_next: 1104 state |= AWI_RXD_ST_CONSUMED; 1105 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1106 } 1107 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1108 if (next & AWI_RXD_NEXT_LAST) 1109 break; 1110 /* make sure the next pointer is correct */ 1111 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1112 break; 1113 state |= AWI_RXD_ST_OWN; 1114 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1115 rxoff = next & 0x7fff; 1116 } 1117 sc->sc_rxdoff = rxoff; 1118 } 1119 1120 static void 1121 awi_tx_int(struct awi_softc *sc) 1122 { 1123 struct ifnet *ifp = &sc->sc_ic.ic_if; 1124 u_int8_t flags; 1125 1126 while (sc->sc_txdone != sc->sc_txnext) { 1127 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1128 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1129 break; 1130 if (flags & AWI_TXD_ST_ERROR) 1131 ifp->if_oerrors++; 1132 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1133 0x7fff; 1134 } 1135 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1136 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1137 sc->sc_tx_timer = 0; 1138 ifp->if_flags &= ~IFF_OACTIVE; 1139 awi_start(ifp); 1140 } 1141 1142 static struct mbuf * 1143 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1144 { 1145 struct ifnet *ifp = &sc->sc_ic.ic_if; 1146 struct mbuf *m; 1147 struct mbuf *top, **mp; 1148 u_int tlen; 1149 1150 top = sc->sc_rxpend; 1151 mp = ⊤ 1152 if (top != NULL) { 1153 sc->sc_rxpend = NULL; 1154 top->m_pkthdr.len += len; 1155 m = top; 1156 while (*mp != NULL) { 1157 m = *mp; 1158 mp = &m->m_next; 1159 } 1160 if (m->m_flags & M_EXT) 1161 tlen = m->m_ext.ext_size; 1162 else if (m->m_flags & M_PKTHDR) 1163 tlen = MHLEN; 1164 else 1165 tlen = MLEN; 1166 tlen -= m->m_len; 1167 if (tlen > len) 1168 tlen = len; 1169 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1170 off += tlen; 1171 len -= tlen; 1172 } 1173 1174 while (len > 0) { 1175 if (top == NULL) { 1176 MGETHDR(m, M_DONTWAIT, MT_DATA); 1177 if (m == NULL) 1178 return NULL; 1179 m->m_pkthdr.rcvif = ifp; 1180 m->m_pkthdr.len = len; 1181 m->m_len = MHLEN; 1182 m->m_flags |= M_HASFCS; 1183 } else { 1184 MGET(m, M_DONTWAIT, MT_DATA); 1185 if (m == NULL) { 1186 m_freem(top); 1187 return NULL; 1188 } 1189 m->m_len = MLEN; 1190 } 1191 if (len >= MINCLSIZE) { 1192 MCLGET(m, M_DONTWAIT); 1193 if (m->m_flags & M_EXT) 1194 m->m_len = m->m_ext.ext_size; 1195 } 1196 if (top == NULL) { 1197 int hdrlen = sizeof(struct ieee80211_frame) + 1198 sizeof(struct llc); 1199 caddr_t newdata = (caddr_t) 1200 ALIGN(m->m_data + hdrlen) - hdrlen; 1201 m->m_len -= newdata - m->m_data; 1202 m->m_data = newdata; 1203 } 1204 if (m->m_len > len) 1205 m->m_len = len; 1206 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1207 off += m->m_len; 1208 len -= m->m_len; 1209 *mp = m; 1210 mp = &m->m_next; 1211 } 1212 return top; 1213 } 1214 1215 /* 1216 * Initialize hardware and start firmware to accept commands. 1217 * Called everytime after power on firmware. 1218 */ 1219 1220 static int 1221 awi_hw_init(struct awi_softc *sc) 1222 { 1223 u_int8_t status; 1224 u_int16_t intmask; 1225 int i, error; 1226 1227 sc->sc_enab_intr = 0; 1228 sc->sc_invalid = 0; /* XXX: really? */ 1229 awi_drvstate(sc, AWI_DRV_RESET); 1230 1231 /* reset firmware */ 1232 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1233 DELAY(100); 1234 awi_write_1(sc, AWI_SELFTEST, 0); 1235 awi_write_1(sc, AWI_CMD, 0); 1236 awi_write_1(sc, AWI_BANNER, 0); 1237 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1238 DELAY(100); 1239 1240 /* wait for selftest completion */ 1241 for (i = 0; ; i++) { 1242 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1243 printf("%s: failed to complete selftest (timeout)\n", 1244 sc->sc_dev.dv_xname); 1245 return ENXIO; 1246 } 1247 status = awi_read_1(sc, AWI_SELFTEST); 1248 if ((status & 0xf0) == 0xf0) 1249 break; 1250 if (sc->sc_cansleep) { 1251 sc->sc_sleep_cnt++; 1252 (void)tsleep(sc, PWAIT, "awitst", 1); 1253 sc->sc_sleep_cnt--; 1254 } else { 1255 DELAY(1000*1000/hz); 1256 } 1257 } 1258 if (status != AWI_SELFTEST_PASSED) { 1259 printf("%s: failed to complete selftest (code %x)\n", 1260 sc->sc_dev.dv_xname, status); 1261 return ENXIO; 1262 } 1263 1264 /* check banner to confirm firmware write it */ 1265 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1266 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1267 printf("%s: failed to complete selftest (bad banner)\n", 1268 sc->sc_dev.dv_xname); 1269 for (i = 0; i < AWI_BANNER_LEN; i++) 1270 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1271 printf("\n"); 1272 return ENXIO; 1273 } 1274 1275 /* initializing interrupt */ 1276 sc->sc_enab_intr = 1; 1277 error = awi_intr_lock(sc); 1278 if (error) 1279 return error; 1280 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1281 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1282 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1283 awi_write_1(sc, AWI_INTMASK2, 0); 1284 awi_write_1(sc, AWI_INTSTAT, 0); 1285 awi_write_1(sc, AWI_INTSTAT2, 0); 1286 awi_intr_unlock(sc); 1287 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1288 1289 /* issuing interface test command */ 1290 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1291 if (error) { 1292 printf("%s: failed to complete selftest", sc->sc_dev.dv_xname); 1293 if (error == ENXIO) 1294 printf(" (no hardware)\n"); 1295 else if (error != EWOULDBLOCK) 1296 printf(" (error %d)\n", error); 1297 else if (sc->sc_cansleep) 1298 printf(" (lost interrupt)\n"); 1299 else 1300 printf(" (command timeout)\n"); 1301 return error; 1302 } 1303 1304 /* Initialize VBM */ 1305 awi_write_1(sc, AWI_VBM_OFFSET, 0); 1306 awi_write_1(sc, AWI_VBM_LENGTH, 1); 1307 awi_write_1(sc, AWI_VBM_BITMAP, 0); 1308 return 0; 1309 } 1310 1311 /* 1312 * Extract the factory default MIB value from firmware and assign the driver 1313 * default value. 1314 * Called once at attaching the interface. 1315 */ 1316 1317 static int 1318 awi_init_mibs(struct awi_softc *sc) 1319 { 1320 int chan, i, error; 1321 struct ieee80211com *ic = &sc->sc_ic; 1322 struct awi_chanset *cs; 1323 1324 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1325 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1326 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1327 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1328 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1329 printf("%s: failed to get default mib value (error %d)\n", 1330 sc->sc_dev.dv_xname, error); 1331 return error; 1332 } 1333 1334 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1335 for (cs = awi_chanset; ; cs++) { 1336 if (cs->cs_type == 0) { 1337 printf("%s: failed to set available channel\n", 1338 sc->sc_dev.dv_xname); 1339 return ENXIO; 1340 } 1341 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1342 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1343 break; 1344 } 1345 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1346 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1347 chan = IEEE80211_FH_CHAN(i % 3 + 1, i); 1348 setbit(sc->sc_ic.ic_chan_avail, chan); 1349 /* XXX for FHSS, does frequency matter? */ 1350 ic->ic_channels[chan].ic_freq = 0; 1351 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1352 /* 1353 * According to the IEEE 802.11 specification, 1354 * hop pattern parameter for FH phy should be 1355 * incremented by 3 for given hop chanset, i.e., 1356 * the chanset parameter is calculated for given 1357 * hop patter. However, BayStack 650 Access Points 1358 * apparently use fixed hop chanset parameter value 1359 * 1 for any hop pattern. So we also try this 1360 * combination of hop chanset and pattern. 1361 */ 1362 chan = IEEE80211_FH_CHAN(1, i); 1363 setbit(sc->sc_ic.ic_chan_avail, chan); 1364 ic->ic_channels[chan].ic_freq = 0; /* XXX */ 1365 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1366 } 1367 } else { 1368 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1369 setbit(sc->sc_ic.ic_chan_avail, i); 1370 ic->ic_channels[i].ic_freq = 1371 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 1372 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 1373 } 1374 } 1375 sc->sc_cur_chan = cs->cs_def; 1376 1377 sc->sc_mib_local.Fragmentation_Dis = 1; 1378 sc->sc_mib_local.Add_PLCP_Dis = 0; 1379 sc->sc_mib_local.MAC_Hdr_Prsv = 1; 1380 sc->sc_mib_local.Rx_Mgmt_Que_En = 0; 1381 sc->sc_mib_local.Re_Assembly_Dis = 1; 1382 sc->sc_mib_local.Strip_PLCP_Dis = 0; 1383 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1384 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1385 sc->sc_mib_local.Check_Seq_Cntl_Dis = 1; 1386 sc->sc_mib_local.Flush_CFP_Queue_On_CF_End = 0; 1387 sc->sc_mib_local.Network_Mode = 1; 1388 sc->sc_mib_local.PWD_Lvl = 0; 1389 sc->sc_mib_local.CFP_Mode = 0; 1390 1391 /* allocate buffers */ 1392 sc->sc_txbase = AWI_BUFFERS; 1393 sc->sc_txend = sc->sc_txbase + 1394 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1395 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1396 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1397 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1398 sc->sc_txend - sc->sc_txbase); 1399 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1400 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1401 AWI_BUFFERS_END - sc->sc_txend); 1402 sc->sc_mib_local.Acting_as_AP = 0; 1403 sc->sc_mib_local.Fill_CFP = 0; 1404 1405 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1406 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1407 1408 sc->sc_mib_mgt.aPower_Mgt_Mode = 0; 1409 sc->sc_mib_mgt.aDTIM_Period = 1; 1410 LE_WRITE_2(&sc->sc_mib_mgt.aATIM_Window, 0); 1411 return 0; 1412 } 1413 1414 static int 1415 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1416 { 1417 int error; 1418 u_int8_t size, *ptr; 1419 1420 switch (mib) { 1421 case AWI_MIB_LOCAL: 1422 ptr = (u_int8_t *)&sc->sc_mib_local; 1423 size = sizeof(sc->sc_mib_local); 1424 break; 1425 case AWI_MIB_ADDR: 1426 ptr = (u_int8_t *)&sc->sc_mib_addr; 1427 size = sizeof(sc->sc_mib_addr); 1428 break; 1429 case AWI_MIB_MAC: 1430 ptr = (u_int8_t *)&sc->sc_mib_mac; 1431 size = sizeof(sc->sc_mib_mac); 1432 break; 1433 case AWI_MIB_STAT: 1434 ptr = (u_int8_t *)&sc->sc_mib_stat; 1435 size = sizeof(sc->sc_mib_stat); 1436 break; 1437 case AWI_MIB_MGT: 1438 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1439 size = sizeof(sc->sc_mib_mgt); 1440 break; 1441 case AWI_MIB_PHY: 1442 ptr = (u_int8_t *)&sc->sc_mib_phy; 1443 size = sizeof(sc->sc_mib_phy); 1444 break; 1445 default: 1446 return EINVAL; 1447 } 1448 if (sc->sc_cmd_inprog) { 1449 if ((error = awi_cmd_wait(sc)) != 0) { 1450 if (error == EWOULDBLOCK) 1451 DPRINTF(("awi_mib: cmd %d inprog", 1452 sc->sc_cmd_inprog)); 1453 return error; 1454 } 1455 } 1456 sc->sc_cmd_inprog = cmd; 1457 if (cmd == AWI_CMD_SET_MIB) 1458 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1459 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1460 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1461 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1462 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1463 return error; 1464 if (cmd == AWI_CMD_GET_MIB) { 1465 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1466 #ifdef AWI_DEBUG 1467 if (awi_debug) { 1468 int i; 1469 1470 printf("awi_mib: #%d:", mib); 1471 for (i = 0; i < size; i++) 1472 printf(" %02x", ptr[i]); 1473 printf("\n"); 1474 } 1475 #endif 1476 } 1477 return 0; 1478 } 1479 1480 static int 1481 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1482 { 1483 u_int8_t status; 1484 int error = 0; 1485 #ifdef AWI_DEBUG 1486 static const char *cmdname[] = { 1487 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1488 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1489 }; 1490 #endif 1491 1492 #ifdef AWI_DEBUG 1493 if (awi_debug > 1) { 1494 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1495 printf("awi_cmd: #%d", cmd); 1496 else 1497 printf("awi_cmd: %s", cmdname[cmd]); 1498 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1499 } 1500 #endif 1501 sc->sc_cmd_inprog = cmd; 1502 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1503 awi_write_1(sc, AWI_CMD, cmd); 1504 if (wflag == AWI_NOWAIT) 1505 return EINPROGRESS; 1506 if ((error = awi_cmd_wait(sc)) != 0) 1507 return error; 1508 status = awi_read_1(sc, AWI_CMD_STATUS); 1509 awi_write_1(sc, AWI_CMD, 0); 1510 switch (status) { 1511 case AWI_STAT_OK: 1512 break; 1513 case AWI_STAT_BADPARM: 1514 return EINVAL; 1515 default: 1516 printf("%s: command %d failed %x\n", 1517 sc->sc_dev.dv_xname, cmd, status); 1518 return ENXIO; 1519 } 1520 return 0; 1521 } 1522 1523 static int 1524 awi_cmd_wait(struct awi_softc *sc) 1525 { 1526 int i, error = 0; 1527 1528 i = 0; 1529 while (sc->sc_cmd_inprog) { 1530 if (sc->sc_invalid) 1531 return ENXIO; 1532 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1533 printf("%s: failed to access hardware\n", 1534 sc->sc_dev.dv_xname); 1535 sc->sc_invalid = 1; 1536 return ENXIO; 1537 } 1538 if (sc->sc_cansleep) { 1539 sc->sc_sleep_cnt++; 1540 error = tsleep(sc, PWAIT, "awicmd", 1541 AWI_CMD_TIMEOUT*hz/1000); 1542 sc->sc_sleep_cnt--; 1543 } else { 1544 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1545 awi_cmd_done(sc); 1546 break; 1547 } 1548 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1549 error = EWOULDBLOCK; 1550 else 1551 DELAY(10); 1552 } 1553 if (error) 1554 break; 1555 } 1556 if (error) { 1557 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1558 sc->sc_cmd_inprog, error)); 1559 } 1560 return error; 1561 } 1562 1563 static void 1564 awi_cmd_done(struct awi_softc *sc) 1565 { 1566 u_int8_t cmd, status; 1567 1568 status = awi_read_1(sc, AWI_CMD_STATUS); 1569 if (status == AWI_STAT_IDLE) 1570 return; /* stray interrupt */ 1571 1572 cmd = sc->sc_cmd_inprog; 1573 sc->sc_cmd_inprog = 0; 1574 wakeup(sc); 1575 awi_write_1(sc, AWI_CMD, 0); 1576 1577 if (status != AWI_STAT_OK) { 1578 printf("%s: command %d failed %x\n", 1579 sc->sc_dev.dv_xname, cmd, status); 1580 sc->sc_substate = AWI_ST_NONE; 1581 return; 1582 } 1583 if (sc->sc_substate != AWI_ST_NONE) 1584 (void)ieee80211_new_state(&sc->sc_ic, sc->sc_nstate, -1); 1585 } 1586 1587 static int 1588 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1589 { 1590 u_int32_t txd, ntxd, frame; 1591 1592 txd = sc->sc_txnext; 1593 frame = txd + AWI_TXD_SIZE; 1594 if (frame + len > sc->sc_txend) 1595 frame = sc->sc_txbase; 1596 ntxd = frame + len; 1597 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1598 ntxd = sc->sc_txbase; 1599 *framep = frame; 1600 *ntxdp = ntxd; 1601 /* 1602 * Determine if there are any room in ring buffer. 1603 * --- send wait, === new data, +++ conflict (ENOBUFS) 1604 * base........................end 1605 * done----txd=====ntxd OK 1606 * --txd=====done++++ntxd-- full 1607 * --txd=====ntxd done-- OK 1608 * ==ntxd done----txd=== OK 1609 * ==done++++ntxd----txd=== full 1610 * ++ntxd txd=====done++ full 1611 */ 1612 if (txd < ntxd) { 1613 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1614 return ENOBUFS; 1615 } else { 1616 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1617 return ENOBUFS; 1618 } 1619 return 0; 1620 } 1621 1622 static int 1623 awi_lock(struct awi_softc *sc) 1624 { 1625 int error = 0; 1626 1627 if (curlwp == NULL) { 1628 /* 1629 * XXX 1630 * Though driver ioctl should be called with context, 1631 * KAME ipv6 stack calls ioctl in interrupt for now. 1632 * We simply abort the request if there are other 1633 * ioctl requests in progress. 1634 */ 1635 if (sc->sc_busy) { 1636 if (sc->sc_invalid) 1637 return ENXIO; 1638 return EWOULDBLOCK; 1639 } 1640 sc->sc_busy = 1; 1641 sc->sc_cansleep = 0; 1642 return 0; 1643 } 1644 while (sc->sc_busy) { 1645 if (sc->sc_invalid) 1646 return ENXIO; 1647 sc->sc_sleep_cnt++; 1648 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1649 sc->sc_sleep_cnt--; 1650 if (error) 1651 return error; 1652 } 1653 sc->sc_busy = 1; 1654 sc->sc_cansleep = 1; 1655 return 0; 1656 } 1657 1658 static void 1659 awi_unlock(struct awi_softc *sc) 1660 { 1661 sc->sc_busy = 0; 1662 sc->sc_cansleep = 0; 1663 if (sc->sc_sleep_cnt) 1664 wakeup(sc); 1665 } 1666 1667 static int 1668 awi_intr_lock(struct awi_softc *sc) 1669 { 1670 u_int8_t status; 1671 int i, retry; 1672 1673 status = 1; 1674 for (retry = 0; retry < 10; retry++) { 1675 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1676 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1677 break; 1678 DELAY(5); 1679 } 1680 if (status != 0) 1681 break; 1682 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1683 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1684 break; 1685 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1686 } 1687 if (status != 0) { 1688 printf("%s: failed to lock interrupt\n", 1689 sc->sc_dev.dv_xname); 1690 return ENXIO; 1691 } 1692 return 0; 1693 } 1694 1695 static void 1696 awi_intr_unlock(struct awi_softc *sc) 1697 { 1698 1699 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1700 } 1701 1702 static int 1703 awi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1704 { 1705 struct awi_softc *sc = ic->ic_softc; 1706 struct ieee80211_node *ni; 1707 struct ifnet *ifp = &ic->ic_if; 1708 int error; 1709 u_int8_t newmode; 1710 enum ieee80211_state ostate; 1711 #ifdef AWI_DEBUG 1712 static const char *stname[] = 1713 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1714 static const char *substname[] = 1715 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1716 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1717 #endif /* AWI_DEBUG */ 1718 1719 ostate = ic->ic_state; 1720 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1721 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1722 1723 /* set LED */ 1724 switch (nstate) { 1725 case IEEE80211_S_INIT: 1726 awi_drvstate(sc, AWI_DRV_RESET); 1727 break; 1728 case IEEE80211_S_SCAN: 1729 if (ic->ic_opmode == IEEE80211_M_IBSS || 1730 ic->ic_opmode == IEEE80211_M_AHDEMO) 1731 awi_drvstate(sc, AWI_DRV_ADHSC); 1732 else 1733 awi_drvstate(sc, AWI_DRV_INFSY); 1734 break; 1735 case IEEE80211_S_AUTH: 1736 awi_drvstate(sc, AWI_DRV_INFSY); 1737 break; 1738 case IEEE80211_S_ASSOC: 1739 awi_drvstate(sc, AWI_DRV_INFAUTH); 1740 break; 1741 case IEEE80211_S_RUN: 1742 if (ic->ic_opmode == IEEE80211_M_IBSS || 1743 ic->ic_opmode == IEEE80211_M_AHDEMO) 1744 awi_drvstate(sc, AWI_DRV_ADHSY); 1745 else 1746 awi_drvstate(sc, AWI_DRV_INFASSOC); 1747 break; 1748 } 1749 1750 if (nstate == IEEE80211_S_INIT) { 1751 sc->sc_substate = AWI_ST_NONE; 1752 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1753 return (*sc->sc_newstate)(ic, nstate, arg); 1754 } 1755 1756 /* state transition */ 1757 if (nstate == IEEE80211_S_SCAN) { 1758 /* SCAN substate */ 1759 if (sc->sc_substate == AWI_ST_NONE) { 1760 sc->sc_nstate = nstate; /* next state in transition */ 1761 sc->sc_substate = AWI_ST_SCAN_INIT; 1762 } 1763 switch (sc->sc_substate) { 1764 case AWI_ST_SCAN_INIT: 1765 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1766 switch (ostate) { 1767 case IEEE80211_S_RUN: 1768 /* beacon miss */ 1769 if (ifp->if_flags & IFF_DEBUG) 1770 printf("%s: no recent beacons from %s;" 1771 " rescanning\n", 1772 ifp->if_xname, 1773 ether_sprintf(ic->ic_bss->ni_bssid)); 1774 /* FALLTHRU */ 1775 case IEEE80211_S_AUTH: 1776 case IEEE80211_S_ASSOC: 1777 /* timeout restart scan */ 1778 ieee80211_free_allnodes(ic); 1779 /* FALLTHRU */ 1780 case IEEE80211_S_INIT: 1781 ic->ic_flags |= IEEE80211_F_ASCAN; 1782 /* FALLTHRU */ 1783 case IEEE80211_S_SCAN: 1784 /* scan next */ 1785 break; 1786 } 1787 if (ic->ic_flags & IEEE80211_F_ASCAN) 1788 newmode = AWI_SCAN_ACTIVE; 1789 else 1790 newmode = AWI_SCAN_PASSIVE; 1791 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1792 sc->sc_mib_mgt.aScan_Mode = newmode; 1793 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1794 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1795 break; 1796 } 1797 /* FALLTHRU */ 1798 case AWI_ST_SCAN_SETMIB: 1799 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1800 if (sc->sc_cmd_inprog) { 1801 if ((error = awi_cmd_wait(sc)) != 0) 1802 break; 1803 } 1804 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1805 ni = ic->ic_bss; 1806 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1807 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1808 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1809 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1810 awi_write_1(sc, AWI_CA_SCAN_SET, 1811 IEEE80211_FH_CHANSET( 1812 ieee80211_chan2ieee(ic, ni->ni_chan))); 1813 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1814 IEEE80211_FH_CHANPAT( 1815 ieee80211_chan2ieee(ic, ni->ni_chan))); 1816 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1817 } else { 1818 awi_write_1(sc, AWI_CA_SCAN_SET, 1819 ieee80211_chan2ieee(ic, ni->ni_chan)); 1820 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1821 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1822 } 1823 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1824 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 1825 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1826 != 0) 1827 break; 1828 /* FALLTHRU */ 1829 case AWI_ST_SCAN_SCCMD: 1830 ic->ic_state = nstate; 1831 sc->sc_substate = AWI_ST_NONE; 1832 error = EINPROGRESS; 1833 break; 1834 default: 1835 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1836 stname[nstate], substname[sc->sc_substate])); 1837 sc->sc_substate = AWI_ST_NONE; 1838 error = EIO; 1839 break; 1840 } 1841 goto out; 1842 } 1843 1844 if (ostate == IEEE80211_S_SCAN) { 1845 /* set SSID and channel */ 1846 /* substate */ 1847 if (sc->sc_substate == AWI_ST_NONE) { 1848 sc->sc_nstate = nstate; /* next state in transition */ 1849 sc->sc_substate = AWI_ST_SUB_INIT; 1850 } 1851 ni = ic->ic_bss; 1852 switch (sc->sc_substate) { 1853 case AWI_ST_SUB_INIT: 1854 sc->sc_substate = AWI_ST_SUB_SETSS; 1855 IEEE80211_ADDR_COPY(&sc->sc_mib_mgt.aCurrent_BSS_ID, 1856 ni->ni_bssid); 1857 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 1858 AWI_ESS_ID_SIZE); 1859 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 1860 IEEE80211_ELEMID_SSID; 1861 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = ni->ni_esslen; 1862 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 1863 ni->ni_essid, ni->ni_esslen); 1864 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 1865 ni->ni_intval); 1866 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 1867 AWI_NOWAIT)) != 0) 1868 break; 1869 /* FALLTHRU */ 1870 case AWI_ST_SUB_SETSS: 1871 sc->sc_substate = AWI_ST_SUB_SYNC; 1872 if (sc->sc_cmd_inprog) { 1873 if ((error = awi_cmd_wait(sc)) != 0) 1874 break; 1875 } 1876 sc->sc_cmd_inprog = AWI_CMD_SYNC; 1877 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1878 awi_write_1(sc, AWI_CA_SYNC_SET, 1879 IEEE80211_FH_CHANSET( 1880 ieee80211_chan2ieee(ic, ni->ni_chan))); 1881 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 1882 IEEE80211_FH_CHANPAT( 1883 ieee80211_chan2ieee(ic, ni->ni_chan))); 1884 awi_write_1(sc, AWI_CA_SYNC_IDX, 1885 ni->ni_fhindex); 1886 awi_write_2(sc, AWI_CA_SYNC_DWELL, 1887 ni->ni_fhdwell); 1888 } else { 1889 awi_write_1(sc, AWI_CA_SYNC_SET, 1890 ieee80211_chan2ieee(ic, ni->ni_chan)); 1891 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 1892 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 1893 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 1894 } 1895 if (ic->ic_flags & IEEE80211_F_SIBSS) 1896 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 1897 else 1898 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 1899 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 1900 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 1901 ni->ni_tstamp, 8); 1902 awi_write_4(sc, AWI_CA_SYNC_REFTIME, ni->ni_rstamp); 1903 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 1904 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 1905 != 0) 1906 break; 1907 /* FALLTHRU */ 1908 case AWI_ST_SUB_SYNC: 1909 sc->sc_substate = AWI_ST_NONE; 1910 if (ic->ic_flags & IEEE80211_F_SIBSS) { 1911 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 1912 AWI_MIB_MGT, AWI_WAIT)) != 0) 1913 break; 1914 IEEE80211_ADDR_COPY(ni->ni_bssid, 1915 &sc->sc_mib_mgt.aCurrent_BSS_ID); 1916 } else { 1917 if (nstate == IEEE80211_S_RUN) { 1918 sc->sc_rx_timer = 10; 1919 ifp->if_timer = 1; 1920 } 1921 } 1922 error = 0; 1923 break; 1924 default: 1925 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1926 stname[nstate], substname[sc->sc_substate])); 1927 sc->sc_substate = AWI_ST_NONE; 1928 error = EIO; 1929 break; 1930 } 1931 goto out; 1932 } 1933 1934 sc->sc_substate = AWI_ST_NONE; 1935 1936 return (*sc->sc_newstate)(ic, nstate, arg); 1937 out: 1938 if (error != 0) 1939 return error; 1940 return (*sc->sc_newstate)(ic, nstate, arg); 1941 } 1942 1943 static void 1944 awi_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0, 1945 struct ieee80211_node *ni, 1946 int subtype, int rssi, u_int32_t rstamp) 1947 { 1948 struct awi_softc *sc = ic->ic_softc; 1949 1950 /* probe request is handled by hardware */ 1951 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 1952 return; 1953 (*sc->sc_recv_mgmt)(ic, m0, ni, subtype, rssi, rstamp); 1954 } 1955 1956 static int 1957 awi_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, 1958 int type, int arg) 1959 { 1960 struct awi_softc *sc = ic->ic_softc; 1961 1962 /* probe request is handled by hardware */ 1963 if (type == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 1964 return 0; 1965 return (*sc->sc_send_mgmt)(ic, ni, type, arg); 1966 } 1967 1968 static struct mbuf * 1969 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 1970 { 1971 struct ieee80211com *ic = &sc->sc_ic; 1972 struct ieee80211_node *ni = ic->ic_bss; 1973 struct ether_header *eh; 1974 struct ieee80211_frame *wh; 1975 1976 if (m->m_len < sizeof(struct ether_header)) { 1977 m = m_pullup(m, sizeof(struct ether_header)); 1978 if (m == NULL) 1979 return NULL; 1980 } 1981 eh = mtod(m, struct ether_header *); 1982 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 1983 if (m == NULL) 1984 return NULL; 1985 wh = mtod(m, struct ieee80211_frame *); 1986 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 1987 *(u_int16_t *)wh->i_dur = 0; 1988 *(u_int16_t *)wh->i_seq = 1989 htole16(ni->ni_txseq << IEEE80211_SEQ_SEQ_SHIFT); 1990 ni->ni_txseq++; 1991 if (ic->ic_opmode == IEEE80211_M_IBSS || 1992 ic->ic_opmode == IEEE80211_M_AHDEMO) { 1993 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1994 if (sc->sc_adhoc_ap) 1995 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_macaddr); 1996 else 1997 IEEE80211_ADDR_COPY(wh->i_addr1, eh->ether_dhost); 1998 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 1999 IEEE80211_ADDR_COPY(wh->i_addr3, ni->ni_bssid); 2000 } else { 2001 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 2002 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_bssid); 2003 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2004 IEEE80211_ADDR_COPY(wh->i_addr3, eh->ether_dhost); 2005 } 2006 return m; 2007 } 2008 2009 static struct mbuf * 2010 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 2011 { 2012 struct ieee80211com *ic = &sc->sc_ic; 2013 struct ether_header eh; 2014 struct ieee80211_frame wh; 2015 struct llc *llc; 2016 2017 if (m->m_len < sizeof(wh) + sizeof(eh)) { 2018 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 2019 if (m == NULL) 2020 return NULL; 2021 } 2022 memcpy(&wh, mtod(m, caddr_t), sizeof(wh)); 2023 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 2024 return m; 2025 memcpy(&eh, mtod(m, caddr_t) + sizeof(wh), sizeof(eh)); 2026 m_adj(m, sizeof(eh) - sizeof(*llc)); 2027 if (ic->ic_opmode == IEEE80211_M_IBSS || 2028 ic->ic_opmode == IEEE80211_M_AHDEMO) 2029 IEEE80211_ADDR_COPY(wh.i_addr2, eh.ether_shost); 2030 memcpy(mtod(m, caddr_t), &wh, sizeof(wh)); 2031 llc = (struct llc *)(mtod(m, caddr_t) + sizeof(wh)); 2032 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 2033 llc->llc_control = LLC_UI; 2034 llc->llc_snap.org_code[0] = 0; 2035 llc->llc_snap.org_code[1] = 0; 2036 llc->llc_snap.org_code[2] = 0; 2037 llc->llc_snap.ether_type = eh.ether_type; 2038 return m; 2039 } 2040
Indexes created Sat Oct 18 17:09:52 GMT 2025