awi.c revision 1.90.4.1
1 /* $NetBSD: awi.c,v 1.90.4.1 2017/04/21 16:53:46 bouyer 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /* 32 * Driver for AMD 802.11 firmware. 33 * Uses am79c930 chip driver to talk to firmware running on the am79c930. 34 * 35 * More-or-less a generic ethernet-like if driver, with 802.11 gorp added. 36 */ 37 38 /* 39 * todo: 40 * - flush tx queue on resynch. 41 * - clear oactive on "down". 42 * - rewrite copy-into-mbuf code 43 * - mgmt state machine gets stuck retransmitting assoc requests. 44 * - multicast filter. 45 * - fix device reset so it's more likely to work 46 * - show status goo through ifmedia. 47 * 48 * more todo: 49 * - deal with more 802.11 frames. 50 * - send reassoc request 51 * - deal with reassoc response 52 * - send/deal with disassociation 53 * - deal with "full" access points (no room for me). 54 * - power save mode 55 * 56 * later: 57 * - SSID preferences 58 * - need ioctls for poking at the MIBs 59 * - implement ad-hoc mode (including bss creation). 60 * - decide when to do "ad hoc" vs. infrastructure mode (IFF_LINK flags?) 61 * (focus on inf. mode since that will be needed for ietf) 62 * - deal with DH vs. FH versions of the card 63 * - deal with faster cards (2mb/s) 64 * - ?WEP goo (mmm, rc4) (it looks not particularly useful). 65 * - ifmedia revision. 66 * - common 802.11 mibish things. 67 * - common 802.11 media layer. 68 */ 69 70 /* 71 * Driver for AMD 802.11 PCnetMobile firmware. 72 * Uses am79c930 chip driver to talk to firmware running on the am79c930. 73 * 74 * The initial version of the driver was written by 75 * Bill Sommerfeld <sommerfeld (at) NetBSD.org>. 76 * Then the driver module completely rewritten to support cards with DS phy 77 * and to support adhoc mode by Atsushi Onoe <onoe (at) NetBSD.org> 78 */ 79 80 #include <sys/cdefs.h> 81 __KERNEL_RCSID(0, "$NetBSD: awi.c,v 1.90.4.1 2017/04/21 16:53:46 bouyer Exp $"); 82 83 #include "opt_inet.h" 84 85 #include <sys/param.h> 86 #include <sys/systm.h> 87 #include <sys/kernel.h> 88 #include <sys/mbuf.h> 89 #include <sys/malloc.h> 90 #include <sys/proc.h> 91 #include <sys/socket.h> 92 #include <sys/sockio.h> 93 #include <sys/errno.h> 94 #include <sys/endian.h> 95 #include <sys/device.h> 96 97 #include <net/if.h> 98 #include <net/if_dl.h> 99 #include <net/if_ether.h> 100 #include <net/if_media.h> 101 #include <net/if_llc.h> 102 103 #include <net80211/ieee80211_netbsd.h> 104 #include <net80211/ieee80211_var.h> 105 106 #include <net/bpf.h> 107 108 #include <sys/cpu.h> 109 #include <sys/bus.h> 110 111 #include <dev/ic/am79c930reg.h> 112 #include <dev/ic/am79c930var.h> 113 #include <dev/ic/awireg.h> 114 #include <dev/ic/awivar.h> 115 116 static void awi_softintr(void *); 117 static int awi_init(struct ifnet *); 118 static void awi_stop(struct ifnet *, int); 119 static void awi_start(struct ifnet *); 120 static void awi_watchdog(struct ifnet *); 121 static int awi_ioctl(struct ifnet *, u_long, void *); 122 static int awi_media_change(struct ifnet *); 123 static void awi_media_status(struct ifnet *, struct ifmediareq *); 124 static int awi_mode_init(struct awi_softc *); 125 static void awi_rx_int(struct awi_softc *); 126 static void awi_tx_int(struct awi_softc *); 127 static struct mbuf *awi_devget(struct awi_softc *, u_int32_t, u_int16_t); 128 static int awi_hw_init(struct awi_softc *); 129 static int awi_init_mibs(struct awi_softc *); 130 static int awi_mib(struct awi_softc *, u_int8_t, u_int8_t, int); 131 static int awi_cmd(struct awi_softc *, u_int8_t, int); 132 static int awi_cmd_wait(struct awi_softc *); 133 static void awi_cmd_done(struct awi_softc *); 134 static int awi_next_txd(struct awi_softc *, int, u_int32_t *, u_int32_t *); 135 static int awi_lock(struct awi_softc *); 136 static void awi_unlock(struct awi_softc *); 137 static int awi_intr_lock(struct awi_softc *); 138 static void awi_intr_unlock(struct awi_softc *); 139 static int awi_newstate(struct ieee80211com *, enum ieee80211_state, int); 140 static void awi_recv_mgmt(struct ieee80211com *, struct mbuf *, 141 struct ieee80211_node *, int, int, u_int32_t); 142 static int awi_send_mgmt(struct ieee80211com *, struct ieee80211_node *, int, 143 int); 144 static struct mbuf *awi_ether_encap(struct awi_softc *, struct mbuf *); 145 static struct mbuf *awi_ether_modcap(struct awi_softc *, struct mbuf *); 146 147 /* unaligned little endian access */ 148 #define LE_READ_2(p) \ 149 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)) 150 #define LE_READ_4(p) \ 151 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \ 152 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)) 153 #define LE_WRITE_2(p, v) \ 154 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 155 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff))) 156 #define LE_WRITE_4(p, v) \ 157 ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ 158 (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff)), \ 159 (((u_int8_t *)(p))[2] = (((u_int32_t)(v) >> 16) & 0xff)), \ 160 (((u_int8_t *)(p))[3] = (((u_int32_t)(v) >> 24) & 0xff))) 161 162 struct awi_chanset awi_chanset[] = { 163 /* PHY type domain min max def */ 164 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_JP, 6, 17, 6 }, 165 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_ES, 0, 26, 1 }, 166 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_FR, 0, 32, 1 }, 167 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_US, 0, 77, 1 }, 168 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_CA, 0, 77, 1 }, 169 { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_EU, 0, 77, 1 }, 170 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_JP, 14, 14, 14 }, 171 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_ES, 10, 11, 10 }, 172 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_FR, 10, 13, 10 }, 173 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_US, 1, 11, 3 }, 174 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_CA, 1, 11, 3 }, 175 { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_EU, 1, 13, 3 }, 176 { 0, 0, 0, 0, 0 } 177 }; 178 179 #ifdef AWI_DEBUG 180 int awi_debug = 0; 181 182 #define DPRINTF(X) if (awi_debug) printf X 183 #define DPRINTF2(X) if (awi_debug > 1) printf X 184 #else 185 #define DPRINTF(X) 186 #define DPRINTF2(X) 187 #endif 188 189 int 190 awi_attach(struct awi_softc *sc) 191 { 192 struct ieee80211com *ic = &sc->sc_ic; 193 struct ifnet *ifp = &sc->sc_if; 194 int s, i, error, nrate; 195 int mword; 196 enum ieee80211_phymode mode; 197 198 s = splnet(); 199 sc->sc_busy = 1; 200 sc->sc_attached = 0; 201 sc->sc_substate = AWI_ST_NONE; 202 sc->sc_soft_ih = softint_establish(SOFTINT_NET, awi_softintr, sc); 203 if (sc->sc_soft_ih == NULL) { 204 config_deactivate(sc->sc_dev); 205 splx(s); 206 return ENOMEM; 207 } 208 if ((error = awi_hw_init(sc)) != 0) { 209 config_deactivate(sc->sc_dev); 210 splx(s); 211 return error; 212 } 213 error = awi_init_mibs(sc); 214 if (error != 0) { 215 config_deactivate(sc->sc_dev); 216 splx(s); 217 return error; 218 } 219 ifp->if_softc = sc; 220 ifp->if_flags = 221 #ifdef IFF_NOTRAILERS 222 IFF_NOTRAILERS | 223 #endif 224 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; 225 ifp->if_ioctl = awi_ioctl; 226 ifp->if_start = awi_start; 227 ifp->if_watchdog = awi_watchdog; 228 ifp->if_init = awi_init; 229 ifp->if_stop = awi_stop; 230 IFQ_SET_READY(&ifp->if_snd); 231 memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 232 233 ic->ic_ifp = ifp; 234 ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP; 235 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 236 ic->ic_phytype = IEEE80211_T_FH; 237 mode = IEEE80211_MODE_FH; 238 } else { 239 ic->ic_phytype = IEEE80211_T_DS; 240 ic->ic_caps |= IEEE80211_C_AHDEMO; 241 mode = IEEE80211_MODE_11B; 242 } 243 ic->ic_opmode = IEEE80211_M_STA; 244 nrate = sc->sc_mib_phy.aSuprt_Data_Rates[1]; 245 memcpy(ic->ic_sup_rates[mode].rs_rates, 246 sc->sc_mib_phy.aSuprt_Data_Rates + 2, nrate); 247 ic->ic_sup_rates[mode].rs_nrates = nrate; 248 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address); 249 250 printf("%s: IEEE802.11 %s (firmware %s)\n", ifp->if_xname, 251 (ic->ic_phytype == IEEE80211_T_FH) ? "FH" : "DS", sc->sc_banner); 252 printf("%s: 802.11 address: %s\n", ifp->if_xname, 253 ether_sprintf(ic->ic_myaddr)); 254 255 if_attach(ifp); 256 ieee80211_ifattach(ic); 257 258 sc->sc_newstate = ic->ic_newstate; 259 ic->ic_newstate = awi_newstate; 260 261 sc->sc_recv_mgmt = ic->ic_recv_mgmt; 262 ic->ic_recv_mgmt = awi_recv_mgmt; 263 264 sc->sc_send_mgmt = ic->ic_send_mgmt; 265 ic->ic_send_mgmt = awi_send_mgmt; 266 267 ieee80211_media_init(ic, awi_media_change, awi_media_status); 268 269 /* Melco compatibility mode. */ 270 #define ADD(s, o) ifmedia_add(&ic->ic_media, \ 271 IFM_MAKEWORD(IFM_IEEE80211, (s), (o), 0), 0, NULL) 272 ADD(IFM_AUTO, IFM_FLAG0); 273 274 for (i = 0; i < nrate; i++) { 275 mword = ieee80211_rate2media(ic, 276 ic->ic_sup_rates[mode].rs_rates[i], mode); 277 if (mword == 0) 278 continue; 279 ADD(mword, IFM_FLAG0); 280 } 281 #undef ADD 282 283 if ((sc->sc_sdhook = shutdownhook_establish(awi_shutdown, sc)) == NULL) 284 printf("%s: WARNING: unable to establish shutdown hook\n", 285 ifp->if_xname); 286 if ((sc->sc_powerhook = 287 powerhook_establish(ifp->if_xname, awi_power, sc)) == NULL) 288 printf("%s: WARNING: unable to establish power hook\n", 289 ifp->if_xname); 290 sc->sc_attached = 1; 291 splx(s); 292 293 /* ready to accept ioctl */ 294 awi_unlock(sc); 295 296 return 0; 297 } 298 299 int 300 awi_detach(struct awi_softc *sc) 301 { 302 struct ieee80211com *ic = &sc->sc_ic; 303 struct ifnet *ifp = &sc->sc_if; 304 int s; 305 306 if (!sc->sc_attached) 307 return 0; 308 309 s = splnet(); 310 awi_stop(ifp, 1); 311 312 while (sc->sc_sleep_cnt > 0) { 313 wakeup(sc); 314 (void)tsleep(sc, PWAIT, "awidet", 1); 315 } 316 sc->sc_attached = 0; 317 ieee80211_ifdetach(ic); 318 if_detach(ifp); 319 shutdownhook_disestablish(sc->sc_sdhook); 320 powerhook_disestablish(sc->sc_powerhook); 321 softint_disestablish(sc->sc_soft_ih); 322 splx(s); 323 return 0; 324 } 325 326 int 327 awi_activate(device_t self, enum devact act) 328 { 329 struct awi_softc *sc = device_private(self); 330 331 switch (act) { 332 case DVACT_DEACTIVATE: 333 if_deactivate(&sc->sc_if); 334 return 0; 335 default: 336 return EOPNOTSUPP; 337 } 338 } 339 340 void 341 awi_power(int why, void *arg) 342 { 343 struct awi_softc *sc = arg; 344 struct ifnet *ifp = &sc->sc_if; 345 int s; 346 int ocansleep; 347 348 DPRINTF(("awi_power: %d\n", why)); 349 s = splnet(); 350 ocansleep = sc->sc_cansleep; 351 sc->sc_cansleep = 0; 352 switch (why) { 353 case PWR_SUSPEND: 354 case PWR_STANDBY: 355 awi_stop(ifp, 1); 356 break; 357 case PWR_RESUME: 358 if (ifp->if_flags & IFF_UP) { 359 awi_init(ifp); 360 awi_softintr(sc); /* make sure */ 361 } 362 break; 363 case PWR_SOFTSUSPEND: 364 case PWR_SOFTSTANDBY: 365 case PWR_SOFTRESUME: 366 break; 367 } 368 sc->sc_cansleep = ocansleep; 369 splx(s); 370 } 371 372 void 373 awi_shutdown(void *arg) 374 { 375 struct awi_softc *sc = arg; 376 struct ifnet *ifp = &sc->sc_if; 377 378 if (sc->sc_attached) 379 awi_stop(ifp, 1); 380 } 381 382 int 383 awi_intr(void *arg) 384 { 385 struct awi_softc *sc = arg; 386 387 if (!sc->sc_enabled || !sc->sc_enab_intr || 388 !device_is_active(sc->sc_dev)) { 389 DPRINTF(("awi_intr: stray interrupt: " 390 "enabled %d enab_intr %d invalid %d\n", 391 sc->sc_enabled, sc->sc_enab_intr, 392 !device_is_active(sc->sc_dev))); 393 return 0; 394 } 395 396 softint_schedule(sc->sc_soft_ih); 397 return 1; 398 } 399 400 static void 401 awi_softintr(void *arg) 402 { 403 struct awi_softc *sc = arg; 404 u_int16_t status; 405 int ocansleep; 406 int s; 407 #ifdef AWI_DEBUG 408 static const char *intname[] = { 409 "CMD", "RX", "TX", "SCAN_CMPLT", 410 "CFP_START", "DTIM", "CFP_ENDING", "GROGGY", 411 "TXDATA", "TXBCAST", "TXPS", "TXCF", 412 "TXMGT", "#13", "RXDATA", "RXMGT" 413 }; 414 #endif 415 416 s = splnet(); 417 am79c930_gcr_setbits(&sc->sc_chip, 418 AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); 419 awi_write_1(sc, AWI_DIS_PWRDN, 1); 420 ocansleep = sc->sc_cansleep; 421 sc->sc_cansleep = 0; 422 423 for (;;) { 424 if (awi_intr_lock(sc) != 0) 425 break; 426 status = awi_read_1(sc, AWI_INTSTAT); 427 awi_write_1(sc, AWI_INTSTAT, 0); 428 awi_write_1(sc, AWI_INTSTAT, 0); 429 status |= awi_read_1(sc, AWI_INTSTAT2) << 8; 430 awi_write_1(sc, AWI_INTSTAT2, 0); 431 DELAY(10); 432 awi_intr_unlock(sc); 433 if (!sc->sc_cmd_inprog) 434 status &= ~AWI_INT_CMD; /* make sure */ 435 if (status == 0) 436 break; 437 #ifdef AWI_DEBUG 438 if (awi_debug > 1) { 439 int i; 440 441 printf("awi_intr: status 0x%04x", status); 442 for (i = 0; i < sizeof(intname)/sizeof(intname[0]); 443 i++) { 444 if (status & (1 << i)) 445 printf(" %s", intname[i]); 446 } 447 printf("\n"); 448 } 449 #endif 450 if (status & AWI_INT_RX) 451 awi_rx_int(sc); 452 if (status & AWI_INT_TX) 453 awi_tx_int(sc); 454 if (status & AWI_INT_CMD) 455 awi_cmd_done(sc); 456 if (status & AWI_INT_SCAN_CMPLT) { 457 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN && 458 sc->sc_substate == AWI_ST_NONE) 459 ieee80211_next_scan(&sc->sc_ic); 460 } 461 } 462 463 sc->sc_cansleep = ocansleep; 464 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); 465 awi_write_1(sc, AWI_DIS_PWRDN, 0); 466 splx(s); 467 } 468 469 470 static int 471 awi_init(struct ifnet *ifp) 472 { 473 struct awi_softc *sc = ifp->if_softc; 474 struct ieee80211com *ic = &sc->sc_ic; 475 struct ieee80211_node *ni = ic->ic_bss; 476 struct ieee80211_rateset *rs; 477 int error, rate, i; 478 479 DPRINTF(("awi_init: enabled=%d\n", sc->sc_enabled)); 480 if (sc->sc_enabled) { 481 awi_stop(ifp, 0); 482 } else { 483 if (sc->sc_enable) 484 (*sc->sc_enable)(sc); 485 sc->sc_enabled = 1; 486 if ((error = awi_hw_init(sc)) != 0) { 487 if (sc->sc_disable) 488 (*sc->sc_disable)(sc); 489 sc->sc_enabled = 0; 490 return error; 491 } 492 } 493 ic->ic_state = IEEE80211_S_INIT; 494 495 ic->ic_flags &= ~IEEE80211_F_IBSSON; 496 switch (ic->ic_opmode) { 497 case IEEE80211_M_STA: 498 sc->sc_mib_local.Network_Mode = 1; 499 sc->sc_mib_local.Acting_as_AP = 0; 500 break; 501 case IEEE80211_M_IBSS: 502 ic->ic_flags |= IEEE80211_F_IBSSON; 503 /* FALLTHRU */ 504 case IEEE80211_M_AHDEMO: 505 sc->sc_mib_local.Network_Mode = 0; 506 sc->sc_mib_local.Acting_as_AP = 0; 507 break; 508 case IEEE80211_M_HOSTAP: 509 sc->sc_mib_local.Network_Mode = 1; 510 sc->sc_mib_local.Acting_as_AP = 1; 511 break; 512 case IEEE80211_M_MONITOR: 513 return ENODEV; 514 } 515 #if 0 516 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 517 #endif 518 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 519 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 520 sc->sc_mib_mac.aDesired_ESS_ID[1] = ic->ic_des_esslen; 521 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], ic->ic_des_essid, 522 ic->ic_des_esslen); 523 524 /* configure basic rate */ 525 if (ic->ic_phytype == IEEE80211_T_FH) 526 rs = &ic->ic_sup_rates[IEEE80211_MODE_FH]; 527 else 528 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 529 if (ic->ic_fixed_rate != -1) { 530 rate = rs->rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 531 } else { 532 rate = 0; 533 for (i = 0; i < rs->rs_nrates; i++) { 534 if ((rs->rs_rates[i] & IEEE80211_RATE_BASIC) && 535 rate < (rs->rs_rates[i] & IEEE80211_RATE_VAL)) 536 rate = rs->rs_rates[i] & IEEE80211_RATE_VAL; 537 } 538 } 539 rate *= 5; 540 LE_WRITE_2(&sc->sc_mib_mac.aStation_Basic_Rate, rate); 541 542 if ((error = awi_mode_init(sc)) != 0) { 543 DPRINTF(("awi_init: awi_mode_init failed %d\n", error)); 544 awi_stop(ifp, 1); 545 return error; 546 } 547 548 /* start transmitter */ 549 sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; 550 awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); 551 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); 552 awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); 553 awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); 554 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); 555 awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); 556 awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); 557 awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); 558 awi_write_4(sc, AWI_CA_TX_MGT, 0); 559 awi_write_4(sc, AWI_CA_TX_BCAST, 0); 560 awi_write_4(sc, AWI_CA_TX_PS, 0); 561 awi_write_4(sc, AWI_CA_TX_CF, 0); 562 if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { 563 DPRINTF(("awi_init: failed to start transmitter: %d\n", error)); 564 awi_stop(ifp, 1); 565 return error; 566 } 567 568 /* start receiver */ 569 if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { 570 DPRINTF(("awi_init: failed to start receiver: %d\n", error)); 571 awi_stop(ifp, 1); 572 return error; 573 } 574 sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); 575 sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); 576 577 ifp->if_flags |= IFF_RUNNING; 578 ifp->if_flags &= ~IFF_OACTIVE; 579 ic->ic_state = IEEE80211_S_INIT; 580 581 if (ic->ic_opmode == IEEE80211_M_AHDEMO || 582 ic->ic_opmode == IEEE80211_M_HOSTAP) { 583 ni->ni_chan = ic->ic_ibss_chan; 584 ni->ni_intval = ic->ic_lintval; 585 ni->ni_rssi = 0; 586 ni->ni_rstamp = 0; 587 memset(&ni->ni_tstamp, 0, sizeof(ni->ni_tstamp)); 588 ni->ni_rates = 589 ic->ic_sup_rates[ieee80211_chan2mode(ic, ni->ni_chan)]; 590 IEEE80211_ADDR_COPY(ni->ni_macaddr, ic->ic_myaddr); 591 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 592 IEEE80211_ADDR_COPY(ni->ni_bssid, ic->ic_myaddr); 593 ni->ni_esslen = ic->ic_des_esslen; 594 memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); 595 ni->ni_capinfo = IEEE80211_CAPINFO_ESS; 596 if (ic->ic_phytype == IEEE80211_T_FH) { 597 ni->ni_fhdwell = 200; /* XXX */ 598 ni->ni_fhindex = 1; 599 } 600 } else { 601 ni->ni_capinfo = IEEE80211_CAPINFO_IBSS; 602 memset(ni->ni_bssid, 0, IEEE80211_ADDR_LEN); 603 ni->ni_esslen = 0; 604 } 605 if (ic->ic_flags & IEEE80211_F_PRIVACY) 606 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 607 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 608 ic->ic_flags |= IEEE80211_F_SIBSS; 609 ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ 610 sc->sc_substate = AWI_ST_NONE; 611 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 612 } else { 613 /* XXX check sc->sc_cur_chan */ 614 ni->ni_chan = &ic->ic_channels[sc->sc_cur_chan]; 615 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 616 } 617 return 0; 618 } 619 620 static void 621 awi_stop(struct ifnet *ifp, int disable) 622 { 623 struct awi_softc *sc = ifp->if_softc; 624 625 if (!sc->sc_enabled) 626 return; 627 628 DPRINTF(("awi_stop(%d)\n", disable)); 629 630 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); 631 632 if (device_is_active(sc->sc_dev)) { 633 if (sc->sc_cmd_inprog) 634 (void)awi_cmd_wait(sc); 635 (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); 636 sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; 637 awi_write_1(sc, AWI_CA_FTX_DATA, 1); 638 awi_write_1(sc, AWI_CA_FTX_MGT, 0); 639 awi_write_1(sc, AWI_CA_FTX_BCAST, 0); 640 awi_write_1(sc, AWI_CA_FTX_PS, 0); 641 awi_write_1(sc, AWI_CA_FTX_CF, 0); 642 (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); 643 } 644 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 645 ifp->if_timer = 0; 646 sc->sc_tx_timer = sc->sc_rx_timer = 0; 647 if (sc->sc_rxpend != NULL) { 648 m_freem(sc->sc_rxpend); 649 sc->sc_rxpend = NULL; 650 } 651 IFQ_PURGE(&ifp->if_snd); 652 653 if (disable) { 654 if (device_is_active(sc->sc_dev)) 655 am79c930_gcr_setbits(&sc->sc_chip, 656 AM79C930_GCR_CORESET); 657 if (sc->sc_disable) 658 (*sc->sc_disable)(sc); 659 sc->sc_enabled = 0; 660 } 661 } 662 663 static void 664 awi_start(struct ifnet *ifp) 665 { 666 struct awi_softc *sc = ifp->if_softc; 667 struct ieee80211com *ic = &sc->sc_ic; 668 struct ether_header *eh; 669 struct ieee80211_node *ni; 670 struct ieee80211_frame *wh; 671 struct mbuf *m, *m0; 672 int len, dowep; 673 u_int32_t txd, frame, ntxd; 674 u_int8_t rate; 675 676 if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) 677 return; 678 679 for (;;) { 680 txd = sc->sc_txnext; 681 IF_POLL(&ic->ic_mgtq, m0); 682 dowep = 0; 683 if (m0 != NULL) { 684 len = m0->m_pkthdr.len; 685 if (awi_next_txd(sc, len, &frame, &ntxd)) { 686 ifp->if_flags |= IFF_OACTIVE; 687 break; 688 } 689 IF_DEQUEUE(&ic->ic_mgtq, m0); 690 ni = M_GETCTX(m0, struct ieee80211_node *); 691 } else { 692 if (ic->ic_state != IEEE80211_S_RUN) 693 break; 694 IFQ_POLL(&ifp->if_snd, m0); 695 if (m0 == NULL) 696 break; 697 /* 698 * Need to calculate the real length to determine 699 * if the transmit buffer has a room for the packet. 700 */ 701 len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); 702 if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) 703 len += sizeof(struct llc) - 704 sizeof(struct ether_header); 705 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 706 dowep = 1; 707 len += IEEE80211_WEP_IVLEN + 708 IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; 709 } 710 if (awi_next_txd(sc, len, &frame, &ntxd)) { 711 ifp->if_flags |= IFF_OACTIVE; 712 break; 713 } 714 IFQ_DEQUEUE(&ifp->if_snd, m0); 715 ifp->if_opackets++; 716 bpf_mtap(ifp, m0); 717 eh = mtod(m0, struct ether_header *); 718 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 719 if (ni == NULL) { 720 ifp->if_oerrors++; 721 continue; 722 } 723 if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) 724 m0 = awi_ether_encap(sc, m0); 725 else { 726 m0 = ieee80211_encap(ic, m0, ni); 727 } 728 if (m0 == NULL) { 729 ieee80211_free_node(ni); 730 ifp->if_oerrors++; 731 continue; 732 } 733 wh = mtod(m0, struct ieee80211_frame *); 734 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) && 735 (ic->ic_opmode == IEEE80211_M_HOSTAP || 736 ic->ic_opmode == IEEE80211_M_IBSS) && 737 sc->sc_adhoc_ap == 0 && 738 (ifp->if_flags & IFF_LINK0) == 0 && 739 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 740 IEEE80211_FC0_TYPE_DATA) { 741 m_freem(m0); 742 ieee80211_free_node(ni); 743 ifp->if_oerrors++; 744 continue; 745 } 746 } 747 bpf_mtap3(ic->ic_rawbpf, m0); 748 if (dowep) { 749 if ((ieee80211_crypto_encap(ic, ni, m0)) == NULL) { 750 m_freem(m0); 751 ieee80211_free_node(ni); 752 ifp->if_oerrors++; 753 continue; 754 } 755 } 756 ieee80211_free_node(ni); 757 #ifdef DIAGNOSTIC 758 if (m0->m_pkthdr.len != len) { 759 printf("%s: length %d should be %d\n", 760 sc->sc_if.if_xname, m0->m_pkthdr.len, len); 761 m_freem(m0); 762 ifp->if_oerrors++; 763 continue; 764 } 765 #endif 766 767 if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) 768 ieee80211_dump_pkt(m0->m_data, m0->m_len, 769 ic->ic_bss->ni_rates. 770 rs_rates[ic->ic_bss->ni_txrate] & 771 IEEE80211_RATE_VAL, -1); 772 773 for (m = m0, len = 0; m != NULL; m = m->m_next) { 774 awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), 775 m->m_len); 776 len += m->m_len; 777 } 778 m_freem(m0); 779 rate = (ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 780 IEEE80211_RATE_VAL) * 5; 781 awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); 782 awi_write_4(sc, txd + AWI_TXD_START, frame); 783 awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); 784 awi_write_4(sc, txd + AWI_TXD_LENGTH, len); 785 awi_write_1(sc, txd + AWI_TXD_RATE, rate); 786 awi_write_4(sc, txd + AWI_TXD_NDA, 0); 787 awi_write_4(sc, txd + AWI_TXD_NRA, 0); 788 awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); 789 sc->sc_txnext = ntxd; 790 791 sc->sc_tx_timer = 5; 792 ifp->if_timer = 1; 793 } 794 } 795 796 static void 797 awi_watchdog(struct ifnet *ifp) 798 { 799 struct awi_softc *sc = ifp->if_softc; 800 u_int32_t prevdone; 801 int ocansleep; 802 803 ifp->if_timer = 0; 804 if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) 805 return; 806 807 ocansleep = sc->sc_cansleep; 808 sc->sc_cansleep = 0; 809 if (sc->sc_tx_timer) { 810 if (--sc->sc_tx_timer == 0) { 811 printf("%s: device timeout\n", ifp->if_xname); 812 prevdone = sc->sc_txdone; 813 awi_tx_int(sc); 814 if (sc->sc_txdone == prevdone) { 815 ifp->if_oerrors++; 816 awi_init(ifp); 817 goto out; 818 } 819 } 820 ifp->if_timer = 1; 821 } 822 if (sc->sc_rx_timer) { 823 if (--sc->sc_rx_timer == 0) { 824 if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { 825 ieee80211_new_state(&sc->sc_ic, 826 IEEE80211_S_SCAN, -1); 827 goto out; 828 } 829 } else 830 ifp->if_timer = 1; 831 } 832 /* TODO: rate control */ 833 ieee80211_watchdog(&sc->sc_ic); 834 out: 835 sc->sc_cansleep = ocansleep; 836 } 837 838 static int 839 awi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 840 { 841 struct awi_softc *sc = ifp->if_softc; 842 struct ifreq *ifr = (struct ifreq *)data; 843 int s, error; 844 845 s = splnet(); 846 /* serialize ioctl, since we may sleep */ 847 if ((error = awi_lock(sc)) != 0) 848 goto cantlock; 849 850 switch (cmd) { 851 case SIOCSIFFLAGS: 852 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 853 break; 854 if (ifp->if_flags & IFF_UP) { 855 if (sc->sc_enabled) { 856 /* 857 * To avoid rescanning another access point, 858 * do not call awi_init() here. Instead, 859 * only reflect promisc mode settings. 860 */ 861 error = awi_mode_init(sc); 862 } else 863 error = awi_init(ifp); 864 } else if (sc->sc_enabled) 865 awi_stop(ifp, 1); 866 break; 867 case SIOCSIFMEDIA: 868 case SIOCGIFMEDIA: 869 error = ifmedia_ioctl(ifp, ifr, &sc->sc_ic.ic_media, cmd); 870 break; 871 case SIOCADDMULTI: 872 case SIOCDELMULTI: 873 error = ether_ioctl(ifp, cmd, data); 874 if (error == ENETRESET) { 875 /* do not rescan */ 876 if (ifp->if_flags & IFF_RUNNING) 877 error = awi_mode_init(sc); 878 else 879 error = 0; 880 } 881 break; 882 default: 883 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 884 if (error == ENETRESET) { 885 if (sc->sc_enabled) 886 error = awi_init(ifp); 887 else 888 error = 0; 889 } 890 break; 891 } 892 awi_unlock(sc); 893 cantlock: 894 splx(s); 895 return error; 896 } 897 898 /* 899 * Called from ifmedia_ioctl via awi_ioctl with lock obtained. 900 * 901 * TBD factor with ieee80211_media_change 902 */ 903 static int 904 awi_media_change(struct ifnet *ifp) 905 { 906 struct awi_softc *sc = ifp->if_softc; 907 struct ieee80211com *ic = &sc->sc_ic; 908 struct ifmedia_entry *ime; 909 enum ieee80211_opmode newmode; 910 int i, rate, newadhoc_ap, error = 0; 911 912 ime = ic->ic_media.ifm_cur; 913 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 914 i = -1; 915 } else { 916 struct ieee80211_rateset *rs = 917 &ic->ic_sup_rates[(ic->ic_phytype == IEEE80211_T_FH) 918 ? IEEE80211_MODE_FH : IEEE80211_MODE_11B]; 919 rate = ieee80211_media2rate(ime->ifm_media); 920 if (rate == 0) 921 return EINVAL; 922 for (i = 0; i < rs->rs_nrates; i++) { 923 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) 924 break; 925 } 926 if (i == rs->rs_nrates) 927 return EINVAL; 928 } 929 if (ic->ic_fixed_rate != i) { 930 ic->ic_fixed_rate = i; 931 error = ENETRESET; 932 } 933 934 /* 935 * combination of mediaopt 936 * 937 * hostap adhoc flag0 opmode adhoc_ap comment 938 * + - - HOSTAP 0 HostAP 939 * - + - IBSS 0 IBSS 940 * - + + AHDEMO 0 WaveLAN adhoc 941 * - - + IBSS 1 Melco old Sta 942 * also LINK0 943 * - - - STA 0 Infra Station 944 */ 945 newadhoc_ap = 0; 946 if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 947 newmode = IEEE80211_M_HOSTAP; 948 else if (ime->ifm_media & IFM_IEEE80211_ADHOC) { 949 if (ic->ic_phytype == IEEE80211_T_DS && 950 (ime->ifm_media & IFM_FLAG0)) 951 newmode = IEEE80211_M_AHDEMO; 952 else 953 newmode = IEEE80211_M_IBSS; 954 } else if (ime->ifm_media & IFM_FLAG0) { 955 newmode = IEEE80211_M_IBSS; 956 newadhoc_ap = 1; 957 } else 958 newmode = IEEE80211_M_STA; 959 if (ic->ic_opmode != newmode || sc->sc_adhoc_ap != newadhoc_ap) { 960 ic->ic_opmode = newmode; 961 sc->sc_adhoc_ap = newadhoc_ap; 962 error = ENETRESET; 963 } 964 965 if (error == ENETRESET) { 966 if (sc->sc_enabled) 967 error = awi_init(ifp); 968 else 969 error = 0; 970 } 971 return error; 972 } 973 974 static void 975 awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 976 { 977 struct awi_softc *sc = ifp->if_softc; 978 struct ieee80211com *ic = &sc->sc_ic; 979 int rate; 980 enum ieee80211_phymode mode; 981 982 imr->ifm_status = IFM_AVALID; 983 if (ic->ic_state == IEEE80211_S_RUN) 984 imr->ifm_status |= IFM_ACTIVE; 985 imr->ifm_active = IFM_IEEE80211; 986 if (ic->ic_phytype == IEEE80211_T_FH) 987 mode = IEEE80211_MODE_FH; 988 else 989 mode = IEEE80211_MODE_11B; 990 if (ic->ic_state == IEEE80211_S_RUN) { 991 rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 992 IEEE80211_RATE_VAL; 993 } else { 994 if (ic->ic_fixed_rate == -1) 995 rate = 0; 996 else 997 rate = ic->ic_sup_rates[mode]. 998 rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 999 } 1000 imr->ifm_active |= ieee80211_rate2media(ic, rate, mode); 1001 switch (ic->ic_opmode) { 1002 case IEEE80211_M_MONITOR: /* we should never reach here */ 1003 break; 1004 case IEEE80211_M_STA: 1005 break; 1006 case IEEE80211_M_IBSS: 1007 if (sc->sc_adhoc_ap) 1008 imr->ifm_active |= IFM_FLAG0; 1009 else 1010 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1011 break; 1012 case IEEE80211_M_AHDEMO: 1013 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 1014 break; 1015 case IEEE80211_M_HOSTAP: 1016 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1017 break; 1018 } 1019 } 1020 1021 static int 1022 awi_mode_init(struct awi_softc *sc) 1023 { 1024 struct ifnet *ifp = &sc->sc_if; 1025 int n, error; 1026 struct ether_multi *enm; 1027 struct ether_multistep step; 1028 1029 /* reinitialize muticast filter */ 1030 n = 0; 1031 sc->sc_mib_local.Accept_All_Multicast_Dis = 0; 1032 if (sc->sc_ic.ic_opmode != IEEE80211_M_HOSTAP && 1033 (ifp->if_flags & IFF_PROMISC)) { 1034 sc->sc_mib_mac.aPromiscuous_Enable = 1; 1035 goto set_mib; 1036 } 1037 sc->sc_mib_mac.aPromiscuous_Enable = 0; 1038 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 1039 while (enm != NULL) { 1040 if (n == AWI_GROUP_ADDR_SIZE || 1041 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) 1042 goto set_mib; 1043 IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], 1044 enm->enm_addrlo); 1045 n++; 1046 ETHER_NEXT_MULTI(step, enm); 1047 } 1048 for (; n < AWI_GROUP_ADDR_SIZE; n++) 1049 memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, 1050 IEEE80211_ADDR_LEN); 1051 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1052 1053 set_mib: 1054 if (sc->sc_mib_local.Accept_All_Multicast_Dis) 1055 ifp->if_flags &= ~IFF_ALLMULTI; 1056 else 1057 ifp->if_flags |= IFF_ALLMULTI; 1058 sc->sc_mib_mgt.Wep_Required = 1059 (sc->sc_ic.ic_flags & IEEE80211_F_PRIVACY) ? AWI_WEP_ON : AWI_WEP_OFF; 1060 1061 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1062 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1063 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1064 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1065 (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1066 DPRINTF(("awi_mode_init: MIB set failed: %d\n", error)); 1067 return error; 1068 } 1069 return 0; 1070 } 1071 1072 static void 1073 awi_rx_int(struct awi_softc *sc) 1074 { 1075 struct ieee80211com *ic = &sc->sc_ic; 1076 struct ifnet *ifp = &sc->sc_if; 1077 struct ieee80211_frame_min *wh; 1078 struct ieee80211_node *ni; 1079 u_int8_t state, rate, rssi; 1080 u_int16_t len; 1081 u_int32_t frame, next, rstamp, rxoff; 1082 struct mbuf *m; 1083 1084 rxoff = sc->sc_rxdoff; 1085 for (;;) { 1086 state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); 1087 if (state & AWI_RXD_ST_OWN) 1088 break; 1089 if (!(state & AWI_RXD_ST_CONSUMED)) { 1090 if (sc->sc_substate != AWI_ST_NONE) 1091 goto rx_next; 1092 if (state & AWI_RXD_ST_RXERROR) { 1093 ifp->if_ierrors++; 1094 goto rx_next; 1095 } 1096 len = awi_read_2(sc, rxoff + AWI_RXD_LEN); 1097 rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); 1098 rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); 1099 frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 1100 0x7fff; 1101 rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); 1102 m = awi_devget(sc, frame, len); 1103 if (m == NULL) { 1104 ifp->if_ierrors++; 1105 goto rx_next; 1106 } 1107 if (state & AWI_RXD_ST_LF) { 1108 /* TODO check my bss */ 1109 if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && 1110 sc->sc_ic.ic_state == IEEE80211_S_RUN) { 1111 sc->sc_rx_timer = 10; 1112 ifp->if_timer = 1; 1113 } 1114 if ((ifp->if_flags & IFF_DEBUG) && 1115 (ifp->if_flags & IFF_LINK2)) 1116 ieee80211_dump_pkt(m->m_data, m->m_len, 1117 rate / 5, rssi); 1118 if ((ifp->if_flags & IFF_LINK0) || 1119 sc->sc_adhoc_ap) 1120 m = awi_ether_modcap(sc, m); 1121 else 1122 m = m_pullup(m, sizeof(*wh)); 1123 if (m == NULL) { 1124 ifp->if_ierrors++; 1125 goto rx_next; 1126 } 1127 wh = mtod(m, struct ieee80211_frame_min *); 1128 ni = ieee80211_find_rxnode(ic, wh); 1129 ieee80211_input(ic, m, ni, rssi, rstamp); 1130 /* 1131 * The frame may have caused the 1132 * node to be marked for reclamation 1133 * (e.g. in response to a DEAUTH 1134 * message) so use release_node here 1135 * instead of unref_node. 1136 */ 1137 ieee80211_free_node(ni); 1138 } else 1139 sc->sc_rxpend = m; 1140 rx_next: 1141 state |= AWI_RXD_ST_CONSUMED; 1142 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1143 } 1144 next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); 1145 if (next & AWI_RXD_NEXT_LAST) 1146 break; 1147 /* make sure the next pointer is correct */ 1148 if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) 1149 break; 1150 state |= AWI_RXD_ST_OWN; 1151 awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); 1152 rxoff = next & 0x7fff; 1153 } 1154 sc->sc_rxdoff = rxoff; 1155 } 1156 1157 static void 1158 awi_tx_int(struct awi_softc *sc) 1159 { 1160 struct ifnet *ifp = &sc->sc_if; 1161 u_int8_t flags; 1162 1163 while (sc->sc_txdone != sc->sc_txnext) { 1164 flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); 1165 if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) 1166 break; 1167 if (flags & AWI_TXD_ST_ERROR) 1168 ifp->if_oerrors++; 1169 sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & 1170 0x7fff; 1171 } 1172 DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n", 1173 sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); 1174 sc->sc_tx_timer = 0; 1175 ifp->if_flags &= ~IFF_OACTIVE; 1176 awi_start(ifp); 1177 } 1178 1179 static struct mbuf * 1180 awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) 1181 { 1182 struct ifnet *ifp = &sc->sc_if; 1183 struct mbuf *m; 1184 struct mbuf *top, **mp; 1185 u_int tlen; 1186 1187 top = sc->sc_rxpend; 1188 mp = ⊤ 1189 if (top != NULL) { 1190 sc->sc_rxpend = NULL; 1191 top->m_pkthdr.len += len; 1192 m = top; 1193 while (*mp != NULL) { 1194 m = *mp; 1195 mp = &m->m_next; 1196 } 1197 if (m->m_flags & M_EXT) 1198 tlen = m->m_ext.ext_size; 1199 else if (m->m_flags & M_PKTHDR) 1200 tlen = MHLEN; 1201 else 1202 tlen = MLEN; 1203 tlen -= m->m_len; 1204 if (tlen > len) 1205 tlen = len; 1206 awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); 1207 off += tlen; 1208 len -= tlen; 1209 } 1210 1211 while (len > 0) { 1212 if (top == NULL) { 1213 MGETHDR(m, M_DONTWAIT, MT_DATA); 1214 if (m == NULL) 1215 return NULL; 1216 m_set_rcvif(m, ifp); 1217 m->m_pkthdr.len = len; 1218 m->m_len = MHLEN; 1219 m->m_flags |= M_HASFCS; 1220 } else { 1221 MGET(m, M_DONTWAIT, MT_DATA); 1222 if (m == NULL) { 1223 m_freem(top); 1224 return NULL; 1225 } 1226 m->m_len = MLEN; 1227 } 1228 if (len >= MINCLSIZE) { 1229 MCLGET(m, M_DONTWAIT); 1230 if (m->m_flags & M_EXT) 1231 m->m_len = m->m_ext.ext_size; 1232 } 1233 if (top == NULL) { 1234 int hdrlen = sizeof(struct ieee80211_frame) + 1235 sizeof(struct llc); 1236 char *newdata = (char *) 1237 ALIGN(m->m_data + hdrlen) - hdrlen; 1238 m->m_len -= newdata - m->m_data; 1239 m->m_data = newdata; 1240 } 1241 if (m->m_len > len) 1242 m->m_len = len; 1243 awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); 1244 off += m->m_len; 1245 len -= m->m_len; 1246 *mp = m; 1247 mp = &m->m_next; 1248 } 1249 return top; 1250 } 1251 1252 /* 1253 * Initialize hardware and start firmware to accept commands. 1254 * Called everytime after power on firmware. 1255 */ 1256 1257 static int 1258 awi_hw_init(struct awi_softc *sc) 1259 { 1260 u_int8_t status; 1261 u_int16_t intmask; 1262 int i, error; 1263 1264 sc->sc_enab_intr = 0; 1265 awi_drvstate(sc, AWI_DRV_RESET); 1266 1267 /* reset firmware */ 1268 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1269 DELAY(100); 1270 awi_write_1(sc, AWI_SELFTEST, 0); 1271 awi_write_1(sc, AWI_CMD, 0); 1272 awi_write_1(sc, AWI_BANNER, 0); 1273 am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); 1274 DELAY(100); 1275 1276 /* wait for selftest completion */ 1277 for (i = 0; ; i++) { 1278 if (!device_is_active(sc->sc_dev)) 1279 return ENXIO; 1280 if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { 1281 printf("%s: failed to complete selftest (timeout)\n", 1282 sc->sc_if.if_xname); 1283 return ENXIO; 1284 } 1285 status = awi_read_1(sc, AWI_SELFTEST); 1286 if ((status & 0xf0) == 0xf0) 1287 break; 1288 if (sc->sc_cansleep) { 1289 sc->sc_sleep_cnt++; 1290 (void)tsleep(sc, PWAIT, "awitst", 1); 1291 sc->sc_sleep_cnt--; 1292 } else { 1293 DELAY(1000*1000/hz); 1294 } 1295 } 1296 if (status != AWI_SELFTEST_PASSED) { 1297 printf("%s: failed to complete selftest (code %x)\n", 1298 sc->sc_if.if_xname, status); 1299 return ENXIO; 1300 } 1301 1302 /* check banner to confirm firmware write it */ 1303 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); 1304 if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) { 1305 printf("%s: failed to complete selftest (bad banner)\n", 1306 sc->sc_if.if_xname); 1307 for (i = 0; i < AWI_BANNER_LEN; i++) 1308 printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]); 1309 printf("\n"); 1310 return ENXIO; 1311 } 1312 1313 /* initializing interrupt */ 1314 sc->sc_enab_intr = 1; 1315 error = awi_intr_lock(sc); 1316 if (error) 1317 return error; 1318 intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | 1319 AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; 1320 awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); 1321 awi_write_1(sc, AWI_INTMASK2, 0); 1322 awi_write_1(sc, AWI_INTSTAT, 0); 1323 awi_write_1(sc, AWI_INTSTAT2, 0); 1324 awi_intr_unlock(sc); 1325 am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); 1326 1327 /* issuing interface test command */ 1328 error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); 1329 if (error) { 1330 printf("%s: failed to complete selftest", 1331 sc->sc_if.if_xname); 1332 if (error == ENXIO) 1333 printf(" (no hardware)\n"); 1334 else if (error != EWOULDBLOCK) 1335 printf(" (error %d)\n", error); 1336 else if (sc->sc_cansleep) 1337 printf(" (lost interrupt)\n"); 1338 else 1339 printf(" (command timeout)\n"); 1340 return error; 1341 } 1342 1343 /* Initialize VBM */ 1344 awi_write_1(sc, AWI_VBM_OFFSET, 0); 1345 awi_write_1(sc, AWI_VBM_LENGTH, 1); 1346 awi_write_1(sc, AWI_VBM_BITMAP, 0); 1347 return 0; 1348 } 1349 1350 /* 1351 * Extract the factory default MIB value from firmware and assign the driver 1352 * default value. 1353 * Called once at attaching the interface. 1354 */ 1355 1356 static int 1357 awi_init_mibs(struct awi_softc *sc) 1358 { 1359 int chan, i, error; 1360 struct ieee80211com *ic = &sc->sc_ic; 1361 struct awi_chanset *cs; 1362 1363 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || 1364 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || 1365 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || 1366 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || 1367 (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { 1368 printf("%s: failed to get default mib value (error %d)\n", 1369 sc->sc_if.if_xname, error); 1370 return error; 1371 } 1372 1373 memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); 1374 for (cs = awi_chanset; ; cs++) { 1375 if (cs->cs_type == 0) { 1376 printf("%s: failed to set available channel\n", 1377 sc->sc_if.if_xname); 1378 return ENXIO; 1379 } 1380 if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && 1381 cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) 1382 break; 1383 } 1384 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1385 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1386 chan = IEEE80211_FH_CHAN(i % 3 + 1, i); 1387 setbit(sc->sc_ic.ic_chan_avail, chan); 1388 /* XXX for FHSS, does frequency matter? */ 1389 ic->ic_channels[chan].ic_freq = 0; 1390 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1391 /* 1392 * According to the IEEE 802.11 specification, 1393 * hop pattern parameter for FH phy should be 1394 * incremented by 3 for given hop chanset, i.e., 1395 * the chanset parameter is calculated for given 1396 * hop patter. However, BayStack 650 Access Points 1397 * apparently use fixed hop chanset parameter value 1398 * 1 for any hop pattern. So we also try this 1399 * combination of hop chanset and pattern. 1400 */ 1401 chan = IEEE80211_FH_CHAN(1, i); 1402 setbit(sc->sc_ic.ic_chan_avail, chan); 1403 ic->ic_channels[chan].ic_freq = 0; /* XXX */ 1404 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; 1405 } 1406 } else { 1407 for (i = cs->cs_min; i <= cs->cs_max; i++) { 1408 setbit(sc->sc_ic.ic_chan_avail, i); 1409 ic->ic_channels[i].ic_freq = 1410 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 1411 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 1412 } 1413 } 1414 sc->sc_cur_chan = cs->cs_def; 1415 ic->ic_ibss_chan = &ic->ic_channels[cs->cs_def]; 1416 1417 sc->sc_mib_local.Fragmentation_Dis = 1; 1418 sc->sc_mib_local.Add_PLCP_Dis = 0; 1419 sc->sc_mib_local.MAC_Hdr_Prsv = 0; 1420 sc->sc_mib_local.Rx_Mgmt_Que_En = 0; 1421 sc->sc_mib_local.Re_Assembly_Dis = 1; 1422 sc->sc_mib_local.Strip_PLCP_Dis = 0; 1423 sc->sc_mib_local.Power_Saving_Mode_Dis = 1; 1424 sc->sc_mib_local.Accept_All_Multicast_Dis = 1; 1425 sc->sc_mib_local.Check_Seq_Cntl_Dis = 0; 1426 sc->sc_mib_local.Flush_CFP_Queue_On_CF_End = 0; 1427 sc->sc_mib_local.Network_Mode = 1; 1428 sc->sc_mib_local.PWD_Lvl = 0; 1429 sc->sc_mib_local.CFP_Mode = 0; 1430 1431 /* allocate buffers */ 1432 sc->sc_txbase = AWI_BUFFERS; 1433 sc->sc_txend = sc->sc_txbase + 1434 (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + 1435 sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; 1436 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); 1437 LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, 1438 sc->sc_txend - sc->sc_txbase); 1439 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); 1440 LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, 1441 AWI_BUFFERS_END - sc->sc_txend); 1442 sc->sc_mib_local.Acting_as_AP = 0; 1443 sc->sc_mib_local.Fill_CFP = 0; 1444 1445 memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); 1446 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; 1447 1448 sc->sc_mib_mgt.aPower_Mgt_Mode = 0; 1449 sc->sc_mib_mgt.aDTIM_Period = 1; 1450 LE_WRITE_2(&sc->sc_mib_mgt.aATIM_Window, 0); 1451 return 0; 1452 } 1453 1454 static int 1455 awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) 1456 { 1457 int error; 1458 u_int8_t size, *ptr; 1459 1460 switch (mib) { 1461 case AWI_MIB_LOCAL: 1462 ptr = (u_int8_t *)&sc->sc_mib_local; 1463 size = sizeof(sc->sc_mib_local); 1464 break; 1465 case AWI_MIB_ADDR: 1466 ptr = (u_int8_t *)&sc->sc_mib_addr; 1467 size = sizeof(sc->sc_mib_addr); 1468 break; 1469 case AWI_MIB_MAC: 1470 ptr = (u_int8_t *)&sc->sc_mib_mac; 1471 size = sizeof(sc->sc_mib_mac); 1472 break; 1473 case AWI_MIB_STAT: 1474 ptr = (u_int8_t *)&sc->sc_mib_stat; 1475 size = sizeof(sc->sc_mib_stat); 1476 break; 1477 case AWI_MIB_MGT: 1478 ptr = (u_int8_t *)&sc->sc_mib_mgt; 1479 size = sizeof(sc->sc_mib_mgt); 1480 break; 1481 case AWI_MIB_PHY: 1482 ptr = (u_int8_t *)&sc->sc_mib_phy; 1483 size = sizeof(sc->sc_mib_phy); 1484 break; 1485 default: 1486 return EINVAL; 1487 } 1488 if (sc->sc_cmd_inprog) { 1489 if ((error = awi_cmd_wait(sc)) != 0) { 1490 if (error == EWOULDBLOCK) { 1491 DPRINTF(("awi_mib: cmd %d inprog", 1492 sc->sc_cmd_inprog)); 1493 } 1494 return error; 1495 } 1496 } 1497 sc->sc_cmd_inprog = cmd; 1498 if (cmd == AWI_CMD_SET_MIB) 1499 awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1500 awi_write_1(sc, AWI_CA_MIB_TYPE, mib); 1501 awi_write_1(sc, AWI_CA_MIB_SIZE, size); 1502 awi_write_1(sc, AWI_CA_MIB_INDEX, 0); 1503 if ((error = awi_cmd(sc, cmd, wflag)) != 0) 1504 return error; 1505 if (cmd == AWI_CMD_GET_MIB) { 1506 awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); 1507 #ifdef AWI_DEBUG 1508 if (awi_debug) { 1509 int i; 1510 1511 printf("awi_mib: #%d:", mib); 1512 for (i = 0; i < size; i++) 1513 printf(" %02x", ptr[i]); 1514 printf("\n"); 1515 } 1516 #endif 1517 } 1518 return 0; 1519 } 1520 1521 static int 1522 awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) 1523 { 1524 u_int8_t status; 1525 int error = 0; 1526 #ifdef AWI_DEBUG 1527 static const char *cmdname[] = { 1528 "IDLE", "NOP", "SET_MIB", "INIT_TX", "FLUSH_TX", "INIT_RX", 1529 "KILL_RX", "SLEEP", "WAKE", "GET_MIB", "SCAN", "SYNC", "RESUME" 1530 }; 1531 #endif 1532 1533 #ifdef AWI_DEBUG 1534 if (awi_debug > 1) { 1535 if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) 1536 printf("awi_cmd: #%d", cmd); 1537 else 1538 printf("awi_cmd: %s", cmdname[cmd]); 1539 printf(" %s\n", wflag == AWI_NOWAIT ? "nowait" : "wait"); 1540 } 1541 #endif 1542 sc->sc_cmd_inprog = cmd; 1543 awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); 1544 awi_write_1(sc, AWI_CMD, cmd); 1545 if (wflag == AWI_NOWAIT) 1546 return EINPROGRESS; 1547 if ((error = awi_cmd_wait(sc)) != 0) 1548 return error; 1549 status = awi_read_1(sc, AWI_CMD_STATUS); 1550 awi_write_1(sc, AWI_CMD, 0); 1551 switch (status) { 1552 case AWI_STAT_OK: 1553 break; 1554 case AWI_STAT_BADPARM: 1555 return EINVAL; 1556 default: 1557 printf("%s: command %d failed %x\n", 1558 sc->sc_if.if_xname, cmd, status); 1559 return ENXIO; 1560 } 1561 return 0; 1562 } 1563 1564 static int 1565 awi_cmd_wait(struct awi_softc *sc) 1566 { 1567 int i, error = 0; 1568 1569 i = 0; 1570 while (sc->sc_cmd_inprog) { 1571 if (!device_is_active(sc->sc_dev)) 1572 return ENXIO; 1573 if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { 1574 printf("%s: failed to access hardware\n", 1575 sc->sc_if.if_xname); 1576 config_deactivate(sc->sc_dev); 1577 return ENXIO; 1578 } 1579 if (sc->sc_cansleep) { 1580 sc->sc_sleep_cnt++; 1581 error = tsleep(sc, PWAIT, "awicmd", 1582 AWI_CMD_TIMEOUT*hz/1000); 1583 sc->sc_sleep_cnt--; 1584 } else { 1585 if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { 1586 awi_cmd_done(sc); 1587 break; 1588 } 1589 if (i++ >= AWI_CMD_TIMEOUT*1000/10) 1590 error = EWOULDBLOCK; 1591 else 1592 DELAY(10); 1593 } 1594 if (error) 1595 break; 1596 } 1597 if (error) { 1598 DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n", 1599 sc->sc_cmd_inprog, error)); 1600 } 1601 return error; 1602 } 1603 1604 static void 1605 awi_cmd_done(struct awi_softc *sc) 1606 { 1607 u_int8_t cmd, status; 1608 1609 status = awi_read_1(sc, AWI_CMD_STATUS); 1610 if (status == AWI_STAT_IDLE) 1611 return; /* stray interrupt */ 1612 1613 cmd = sc->sc_cmd_inprog; 1614 sc->sc_cmd_inprog = 0; 1615 wakeup(sc); 1616 awi_write_1(sc, AWI_CMD, 0); 1617 1618 if (status != AWI_STAT_OK) { 1619 printf("%s: command %d failed %x\n", 1620 sc->sc_if.if_xname, cmd, status); 1621 sc->sc_substate = AWI_ST_NONE; 1622 return; 1623 } 1624 if (sc->sc_substate != AWI_ST_NONE) 1625 (void)ieee80211_new_state(&sc->sc_ic, sc->sc_nstate, -1); 1626 } 1627 1628 static int 1629 awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) 1630 { 1631 u_int32_t txd, ntxd, frame; 1632 1633 txd = sc->sc_txnext; 1634 frame = txd + AWI_TXD_SIZE; 1635 if (frame + len > sc->sc_txend) 1636 frame = sc->sc_txbase; 1637 ntxd = frame + len; 1638 if (ntxd + AWI_TXD_SIZE > sc->sc_txend) 1639 ntxd = sc->sc_txbase; 1640 *framep = frame; 1641 *ntxdp = ntxd; 1642 /* 1643 * Determine if there are any room in ring buffer. 1644 * --- send wait, === new data, +++ conflict (ENOBUFS) 1645 * base........................end 1646 * done----txd=====ntxd OK 1647 * --txd=====done++++ntxd-- full 1648 * --txd=====ntxd done-- OK 1649 * ==ntxd done----txd=== OK 1650 * ==done++++ntxd----txd=== full 1651 * ++ntxd txd=====done++ full 1652 */ 1653 if (txd < ntxd) { 1654 if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1655 return ENOBUFS; 1656 } else { 1657 if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) 1658 return ENOBUFS; 1659 } 1660 return 0; 1661 } 1662 1663 static int 1664 awi_lock(struct awi_softc *sc) 1665 { 1666 int error = 0; 1667 1668 if (curlwp == NULL) 1669 { 1670 /* 1671 * XXX 1672 * Though driver ioctl should be called with context, 1673 * KAME ipv6 stack calls ioctl in interrupt for now. 1674 * We simply abort the request if there are other 1675 * ioctl requests in progress. 1676 */ 1677 if (sc->sc_busy) { 1678 if (!device_is_active(sc->sc_dev)) 1679 return ENXIO; 1680 return EWOULDBLOCK; 1681 } 1682 sc->sc_busy = 1; 1683 sc->sc_cansleep = 0; 1684 return 0; 1685 } 1686 while (sc->sc_busy) { 1687 if (!device_is_active(sc->sc_dev)) 1688 return ENXIO; 1689 sc->sc_sleep_cnt++; 1690 error = tsleep(sc, PWAIT | PCATCH, "awilck", 0); 1691 sc->sc_sleep_cnt--; 1692 if (error) 1693 return error; 1694 } 1695 sc->sc_busy = 1; 1696 sc->sc_cansleep = 1; 1697 return 0; 1698 } 1699 1700 static void 1701 awi_unlock(struct awi_softc *sc) 1702 { 1703 sc->sc_busy = 0; 1704 sc->sc_cansleep = 0; 1705 if (sc->sc_sleep_cnt) 1706 wakeup(sc); 1707 } 1708 1709 static int 1710 awi_intr_lock(struct awi_softc *sc) 1711 { 1712 u_int8_t status; 1713 int i, retry; 1714 1715 status = 1; 1716 for (retry = 0; retry < 10; retry++) { 1717 for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { 1718 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1719 break; 1720 DELAY(5); 1721 } 1722 if (status != 0) 1723 break; 1724 awi_write_1(sc, AWI_LOCKOUT_MAC, 1); 1725 if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) 1726 break; 1727 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1728 } 1729 if (status != 0) { 1730 printf("%s: failed to lock interrupt\n", 1731 sc->sc_if.if_xname); 1732 return ENXIO; 1733 } 1734 return 0; 1735 } 1736 1737 static void 1738 awi_intr_unlock(struct awi_softc *sc) 1739 { 1740 1741 awi_write_1(sc, AWI_LOCKOUT_MAC, 0); 1742 } 1743 1744 static int 1745 awi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1746 { 1747 struct ifnet *ifp = ic->ic_ifp; 1748 struct awi_softc *sc = ifp->if_softc; 1749 struct ieee80211_node *ni; 1750 int error; 1751 u_int8_t newmode; 1752 enum ieee80211_state ostate; 1753 #ifdef AWI_DEBUG 1754 static const char *stname[] = 1755 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 1756 static const char *substname[] = 1757 { "NONE", "SCAN_INIT", "SCAN_SETMIB", "SCAN_SCCMD", 1758 "SUB_INIT", "SUB_SETSS", "SUB_SYNC" }; 1759 #endif /* AWI_DEBUG */ 1760 1761 ostate = ic->ic_state; 1762 DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n", stname[ostate], 1763 stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); 1764 1765 /* set LED */ 1766 switch (nstate) { 1767 case IEEE80211_S_INIT: 1768 awi_drvstate(sc, AWI_DRV_RESET); 1769 break; 1770 case IEEE80211_S_SCAN: 1771 if (ic->ic_opmode == IEEE80211_M_IBSS || 1772 ic->ic_opmode == IEEE80211_M_AHDEMO) 1773 awi_drvstate(sc, AWI_DRV_ADHSC); 1774 else 1775 awi_drvstate(sc, AWI_DRV_INFSY); 1776 break; 1777 case IEEE80211_S_AUTH: 1778 awi_drvstate(sc, AWI_DRV_INFSY); 1779 break; 1780 case IEEE80211_S_ASSOC: 1781 awi_drvstate(sc, AWI_DRV_INFAUTH); 1782 break; 1783 case IEEE80211_S_RUN: 1784 if (ic->ic_opmode == IEEE80211_M_IBSS || 1785 ic->ic_opmode == IEEE80211_M_AHDEMO) 1786 awi_drvstate(sc, AWI_DRV_ADHSY); 1787 else 1788 awi_drvstate(sc, AWI_DRV_INFASSOC); 1789 break; 1790 } 1791 1792 if (nstate == IEEE80211_S_INIT) { 1793 sc->sc_substate = AWI_ST_NONE; 1794 ic->ic_flags &= ~IEEE80211_F_SIBSS; 1795 return (*sc->sc_newstate)(ic, nstate, arg); 1796 } 1797 1798 /* state transition */ 1799 if (nstate == IEEE80211_S_SCAN) { 1800 /* SCAN substate */ 1801 if (sc->sc_substate == AWI_ST_NONE) { 1802 sc->sc_nstate = nstate; /* next state in transition */ 1803 sc->sc_substate = AWI_ST_SCAN_INIT; 1804 } 1805 switch (sc->sc_substate) { 1806 case AWI_ST_SCAN_INIT: 1807 sc->sc_substate = AWI_ST_SCAN_SETMIB; 1808 switch (ostate) { 1809 case IEEE80211_S_RUN: 1810 /* beacon miss */ 1811 if (ifp->if_flags & IFF_DEBUG) 1812 printf("%s: no recent beacons from %s;" 1813 " rescanning\n", 1814 ifp->if_xname, 1815 ether_sprintf(ic->ic_bss->ni_bssid)); 1816 /* FALLTHRU */ 1817 case IEEE80211_S_AUTH: 1818 case IEEE80211_S_ASSOC: 1819 case IEEE80211_S_INIT: 1820 ieee80211_begin_scan(ic, 1); 1821 /* FALLTHRU */ 1822 case IEEE80211_S_SCAN: 1823 /* scan next */ 1824 break; 1825 } 1826 if (ic->ic_flags & IEEE80211_F_ASCAN) 1827 newmode = AWI_SCAN_ACTIVE; 1828 else 1829 newmode = AWI_SCAN_PASSIVE; 1830 if (sc->sc_mib_mgt.aScan_Mode != newmode) { 1831 sc->sc_mib_mgt.aScan_Mode = newmode; 1832 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, 1833 AWI_MIB_MGT, AWI_NOWAIT)) != 0) 1834 break; 1835 } 1836 /* FALLTHRU */ 1837 case AWI_ST_SCAN_SETMIB: 1838 sc->sc_substate = AWI_ST_SCAN_SCCMD; 1839 if (sc->sc_cmd_inprog) { 1840 if ((error = awi_cmd_wait(sc)) != 0) 1841 break; 1842 } 1843 sc->sc_cmd_inprog = AWI_CMD_SCAN; 1844 ni = ic->ic_bss; 1845 awi_write_2(sc, AWI_CA_SCAN_DURATION, 1846 (ic->ic_flags & IEEE80211_F_ASCAN) ? 1847 AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); 1848 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1849 awi_write_1(sc, AWI_CA_SCAN_SET, 1850 IEEE80211_FH_CHANSET( 1851 ieee80211_chan2ieee(ic, ni->ni_chan))); 1852 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 1853 IEEE80211_FH_CHANPAT( 1854 ieee80211_chan2ieee(ic, ni->ni_chan))); 1855 awi_write_1(sc, AWI_CA_SCAN_IDX, 1); 1856 } else { 1857 awi_write_1(sc, AWI_CA_SCAN_SET, 1858 ieee80211_chan2ieee(ic, ni->ni_chan)); 1859 awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); 1860 awi_write_1(sc, AWI_CA_SCAN_IDX, 0); 1861 } 1862 awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); 1863 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 1864 if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) 1865 != 0) 1866 break; 1867 /* FALLTHRU */ 1868 case AWI_ST_SCAN_SCCMD: 1869 ic->ic_state = nstate; 1870 sc->sc_substate = AWI_ST_NONE; 1871 error = EINPROGRESS; 1872 break; 1873 default: 1874 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1875 stname[nstate], substname[sc->sc_substate])); 1876 sc->sc_substate = AWI_ST_NONE; 1877 error = EIO; 1878 break; 1879 } 1880 goto out; 1881 } 1882 1883 if (ostate == IEEE80211_S_SCAN) { 1884 /* set SSID and channel */ 1885 /* substate */ 1886 if (sc->sc_substate == AWI_ST_NONE) { 1887 sc->sc_nstate = nstate; /* next state in transition */ 1888 sc->sc_substate = AWI_ST_SUB_INIT; 1889 } 1890 ni = ic->ic_bss; 1891 switch (sc->sc_substate) { 1892 case AWI_ST_SUB_INIT: 1893 sc->sc_substate = AWI_ST_SUB_SETSS; 1894 IEEE80211_ADDR_COPY(&sc->sc_mib_mgt.aCurrent_BSS_ID, 1895 ni->ni_bssid); 1896 memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, 1897 AWI_ESS_ID_SIZE); 1898 sc->sc_mib_mgt.aCurrent_ESS_ID[0] = 1899 IEEE80211_ELEMID_SSID; 1900 sc->sc_mib_mgt.aCurrent_ESS_ID[1] = ni->ni_esslen; 1901 memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], 1902 ni->ni_essid, ni->ni_esslen); 1903 LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, 1904 ni->ni_intval); 1905 if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, 1906 AWI_NOWAIT)) != 0) 1907 break; 1908 /* FALLTHRU */ 1909 case AWI_ST_SUB_SETSS: 1910 sc->sc_substate = AWI_ST_SUB_SYNC; 1911 if (sc->sc_cmd_inprog) { 1912 if ((error = awi_cmd_wait(sc)) != 0) 1913 break; 1914 } 1915 sc->sc_cmd_inprog = AWI_CMD_SYNC; 1916 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { 1917 awi_write_1(sc, AWI_CA_SYNC_SET, 1918 IEEE80211_FH_CHANSET( 1919 ieee80211_chan2ieee(ic, ni->ni_chan))); 1920 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 1921 IEEE80211_FH_CHANPAT( 1922 ieee80211_chan2ieee(ic, ni->ni_chan))); 1923 awi_write_1(sc, AWI_CA_SYNC_IDX, 1924 ni->ni_fhindex); 1925 awi_write_2(sc, AWI_CA_SYNC_DWELL, 1926 ni->ni_fhdwell); 1927 } else { 1928 awi_write_1(sc, AWI_CA_SYNC_SET, 1929 ieee80211_chan2ieee(ic, ni->ni_chan)); 1930 awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); 1931 awi_write_1(sc, AWI_CA_SYNC_IDX, 0); 1932 awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); 1933 } 1934 if (ic->ic_flags & IEEE80211_F_SIBSS) { 1935 memset(&ni->ni_tstamp, 0, 1936 sizeof(ni->ni_tstamp)); 1937 ni->ni_rstamp = 0; 1938 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); 1939 } else 1940 awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); 1941 awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); 1942 awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, 1943 ni->ni_tstamp.data, sizeof(ni->ni_tstamp.data)); 1944 awi_write_4(sc, AWI_CA_SYNC_REFTIME, ni->ni_rstamp); 1945 sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 1946 if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) 1947 != 0) 1948 break; 1949 /* FALLTHRU */ 1950 case AWI_ST_SUB_SYNC: 1951 sc->sc_substate = AWI_ST_NONE; 1952 if (ic->ic_flags & IEEE80211_F_SIBSS) { 1953 if ((error = awi_mib(sc, AWI_CMD_GET_MIB, 1954 AWI_MIB_MGT, AWI_WAIT)) != 0) 1955 break; 1956 IEEE80211_ADDR_COPY(ni->ni_bssid, 1957 &sc->sc_mib_mgt.aCurrent_BSS_ID); 1958 } else { 1959 if (nstate == IEEE80211_S_RUN) { 1960 sc->sc_rx_timer = 10; 1961 ifp->if_timer = 1; 1962 } 1963 } 1964 error = 0; 1965 break; 1966 default: 1967 DPRINTF(("awi_newstate: unexpected state %s/%s\n", 1968 stname[nstate], substname[sc->sc_substate])); 1969 sc->sc_substate = AWI_ST_NONE; 1970 error = EIO; 1971 break; 1972 } 1973 goto out; 1974 } 1975 1976 sc->sc_substate = AWI_ST_NONE; 1977 1978 return (*sc->sc_newstate)(ic, nstate, arg); 1979 out: 1980 if (error != 0) { 1981 if (error == EINPROGRESS) 1982 error = 0; 1983 return error; 1984 } 1985 return (*sc->sc_newstate)(ic, nstate, arg); 1986 } 1987 1988 static void 1989 awi_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0, 1990 struct ieee80211_node *ni, 1991 int subtype, int rssi, u_int32_t rstamp) 1992 { 1993 struct awi_softc *sc = ic->ic_ifp->if_softc; 1994 1995 /* probe request is handled by hardware */ 1996 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 1997 return; 1998 (*sc->sc_recv_mgmt)(ic, m0, ni, subtype, rssi, rstamp); 1999 } 2000 2001 static int 2002 awi_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, 2003 int type, int arg) 2004 { 2005 struct awi_softc *sc = ic->ic_ifp->if_softc; 2006 2007 /* probe request is handled by hardware */ 2008 if (type == IEEE80211_FC0_SUBTYPE_PROBE_REQ) 2009 return 0; 2010 return (*sc->sc_send_mgmt)(ic, ni, type, arg); 2011 } 2012 2013 static struct mbuf * 2014 awi_ether_encap(struct awi_softc *sc, struct mbuf *m) 2015 { 2016 struct ieee80211com *ic = &sc->sc_ic; 2017 struct ieee80211_node *ni = ic->ic_bss; 2018 struct ether_header *eh; 2019 struct ieee80211_frame *wh; 2020 2021 if (m->m_len < sizeof(struct ether_header)) { 2022 m = m_pullup(m, sizeof(struct ether_header)); 2023 if (m == NULL) 2024 return NULL; 2025 } 2026 eh = mtod(m, struct ether_header *); 2027 M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); 2028 if (m == NULL) 2029 return NULL; 2030 wh = mtod(m, struct ieee80211_frame *); 2031 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; 2032 *(u_int16_t *)wh->i_dur = 0; 2033 *(u_int16_t *)wh->i_seq = 2034 htole16(ni->ni_txseqs[0] << IEEE80211_SEQ_SEQ_SHIFT); 2035 ni->ni_txseqs[0]++; 2036 if (ic->ic_opmode == IEEE80211_M_IBSS || 2037 ic->ic_opmode == IEEE80211_M_AHDEMO) { 2038 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2039 if (sc->sc_adhoc_ap) 2040 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_macaddr); 2041 else 2042 IEEE80211_ADDR_COPY(wh->i_addr1, eh->ether_dhost); 2043 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2044 IEEE80211_ADDR_COPY(wh->i_addr3, ni->ni_bssid); 2045 } else { 2046 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; 2047 IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_bssid); 2048 IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); 2049 IEEE80211_ADDR_COPY(wh->i_addr3, eh->ether_dhost); 2050 } 2051 return m; 2052 } 2053 2054 static struct mbuf * 2055 awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) 2056 { 2057 struct ieee80211com *ic = &sc->sc_ic; 2058 struct ether_header eh; 2059 struct ieee80211_frame wh; 2060 struct llc *llc; 2061 2062 if (m->m_len < sizeof(wh) + sizeof(eh)) { 2063 m = m_pullup(m, sizeof(wh) + sizeof(eh)); 2064 if (m == NULL) 2065 return NULL; 2066 } 2067 memcpy(&wh, mtod(m, void *), sizeof(wh)); 2068 if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) 2069 return m; 2070 memcpy(&eh, mtod(m, char *) + sizeof(wh), sizeof(eh)); 2071 m_adj(m, sizeof(eh) - sizeof(*llc)); 2072 if (ic->ic_opmode == IEEE80211_M_IBSS || 2073 ic->ic_opmode == IEEE80211_M_AHDEMO) 2074 IEEE80211_ADDR_COPY(wh.i_addr2, eh.ether_shost); 2075 memcpy(mtod(m, void *), &wh, sizeof(wh)); 2076 llc = (struct llc *)(mtod(m, char *) + sizeof(wh)); 2077 llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; 2078 llc->llc_control = LLC_UI; 2079 llc->llc_snap.org_code[0] = 0; 2080 llc->llc_snap.org_code[1] = 0; 2081 llc->llc_snap.org_code[2] = 0; 2082 llc->llc_snap.ether_type = eh.ether_type; 2083 return m; 2084 } 2085
Indexes created Sat Oct 18 17:09:52 GMT 2025