1 /* $NetBSD: wi.c,v 1.226 2008/04/28 20:23:51 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 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 /* 33 * Copyright (c) 1997, 1998, 1999 34 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by Bill Paul. 47 * 4. Neither the name of the author nor the names of any co-contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 55 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 56 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 57 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 58 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 59 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 60 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 61 * THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64 /* 65 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver for NetBSD. 66 * 67 * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu> 68 * Electrical Engineering Department 69 * Columbia University, New York City 70 */ 71 72 /* 73 * The WaveLAN/IEEE adapter is the second generation of the WaveLAN 74 * from Lucent. Unlike the older cards, the new ones are programmed 75 * entirely via a firmware-driven controller called the Hermes. 76 * Unfortunately, Lucent will not release the Hermes programming manual 77 * without an NDA (if at all). What they do release is an API library 78 * called the HCF (Hardware Control Functions) which is supposed to 79 * do the device-specific operations of a device driver for you. The 80 * publically available version of the HCF library (the 'HCF Light') is 81 * a) extremely gross, b) lacks certain features, particularly support 82 * for 802.11 frames, and c) is contaminated by the GNU Public License. 83 * 84 * This driver does not use the HCF or HCF Light at all. Instead, it 85 * programs the Hermes controller directly, using information gleaned 86 * from the HCF Light code and corresponding documentation. 87 * 88 * This driver supports both the PCMCIA and ISA versions of the 89 * WaveLAN/IEEE cards. Note however that the ISA card isn't really 90 * anything of the sort: it's actually a PCMCIA bridge adapter 91 * that fits into an ISA slot, into which a PCMCIA WaveLAN card is 92 * inserted. Consequently, you need to use the pccard support for 93 * both the ISA and PCMCIA adapters. 94 */ 95 96 /* 97 * FreeBSD driver ported to NetBSD by Bill Sommerfeld in the back of the 98 * Oslo IETF plenary meeting. 99 */ 100 101 #include <sys/cdefs.h> 102 __KERNEL_RCSID(0, "$NetBSD: wi.c,v 1.226 2008/04/28 20:23:51 martin Exp $"); 103 104 #define WI_HERMES_AUTOINC_WAR /* Work around data write autoinc bug. */ 105 #define WI_HERMES_STATS_WAR /* Work around stats counter bug. */ 106 #undef WI_HISTOGRAM 107 #undef WI_RING_DEBUG 108 #define STATIC static 109 110 #include "bpfilter.h" 111 112 #include <sys/param.h> 113 #include <sys/sysctl.h> 114 #include <sys/systm.h> 115 #include <sys/callout.h> 116 #include <sys/device.h> 117 #include <sys/socket.h> 118 #include <sys/mbuf.h> 119 #include <sys/ioctl.h> 120 #include <sys/kernel.h> /* for hz */ 121 #include <sys/proc.h> 122 #include <sys/kauth.h> 123 124 #include <net/if.h> 125 #include <net/if_dl.h> 126 #include <net/if_llc.h> 127 #include <net/if_media.h> 128 #include <net/if_ether.h> 129 #include <net/route.h> 130 131 #include <net80211/ieee80211_netbsd.h> 132 #include <net80211/ieee80211_var.h> 133 #include <net80211/ieee80211_ioctl.h> 134 #include <net80211/ieee80211_radiotap.h> 135 #include <net80211/ieee80211_rssadapt.h> 136 137 #if NBPFILTER > 0 138 #include <net/bpf.h> 139 #include <net/bpfdesc.h> 140 #endif 141 142 #include <sys/bus.h> 143 144 #include <dev/ic/wi_ieee.h> 145 #include <dev/ic/wireg.h> 146 #include <dev/ic/wivar.h> 147 148 STATIC int wi_init(struct ifnet *); 149 STATIC void wi_stop(struct ifnet *, int); 150 STATIC void wi_start(struct ifnet *); 151 STATIC int wi_reset(struct wi_softc *); 152 STATIC void wi_watchdog(struct ifnet *); 153 STATIC int wi_ioctl(struct ifnet *, u_long, void *); 154 STATIC int wi_media_change(struct ifnet *); 155 STATIC void wi_media_status(struct ifnet *, struct ifmediareq *); 156 157 STATIC struct ieee80211_node *wi_node_alloc(struct ieee80211_node_table *); 158 STATIC void wi_node_free(struct ieee80211_node *); 159 160 STATIC void wi_raise_rate(struct ieee80211com *, struct ieee80211_rssdesc *); 161 STATIC void wi_lower_rate(struct ieee80211com *, struct ieee80211_rssdesc *); 162 STATIC int wi_choose_rate(struct ieee80211com *, struct ieee80211_node *, 163 struct ieee80211_frame *, u_int); 164 STATIC void wi_rssadapt_updatestats_cb(void *, struct ieee80211_node *); 165 STATIC void wi_rssadapt_updatestats(void *); 166 STATIC void wi_rssdescs_init(struct wi_rssdesc (*)[], wi_rssdescq_t *); 167 STATIC void wi_rssdescs_reset(struct ieee80211com *, struct wi_rssdesc (*)[], 168 wi_rssdescq_t *, u_int8_t (*)[]); 169 STATIC void wi_sync_bssid(struct wi_softc *, u_int8_t new_bssid[]); 170 171 STATIC void wi_rx_intr(struct wi_softc *); 172 STATIC void wi_txalloc_intr(struct wi_softc *); 173 STATIC void wi_cmd_intr(struct wi_softc *); 174 STATIC void wi_tx_intr(struct wi_softc *); 175 STATIC void wi_tx_ex_intr(struct wi_softc *); 176 STATIC void wi_info_intr(struct wi_softc *); 177 178 STATIC int wi_key_delete(struct ieee80211com *, const struct ieee80211_key *); 179 STATIC int wi_key_set(struct ieee80211com *, const struct ieee80211_key *, 180 const u_int8_t[IEEE80211_ADDR_LEN]); 181 STATIC void wi_key_update_begin(struct ieee80211com *); 182 STATIC void wi_key_update_end(struct ieee80211com *); 183 184 STATIC void wi_push_packet(struct wi_softc *); 185 STATIC int wi_get_cfg(struct ifnet *, u_long, void *); 186 STATIC int wi_set_cfg(struct ifnet *, u_long, void *); 187 STATIC int wi_cfg_txrate(struct wi_softc *); 188 STATIC int wi_write_txrate(struct wi_softc *, int); 189 STATIC int wi_write_wep(struct wi_softc *); 190 STATIC int wi_write_multi(struct wi_softc *); 191 STATIC int wi_alloc_fid(struct wi_softc *, int, int *); 192 STATIC void wi_read_nicid(struct wi_softc *); 193 STATIC int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); 194 195 STATIC int wi_cmd(struct wi_softc *, int, int, int, int); 196 STATIC int wi_cmd_start(struct wi_softc *, int, int, int, int); 197 STATIC int wi_cmd_wait(struct wi_softc *, int, int); 198 STATIC int wi_seek_bap(struct wi_softc *, int, int); 199 STATIC int wi_read_bap(struct wi_softc *, int, int, void *, int); 200 STATIC int wi_write_bap(struct wi_softc *, int, int, void *, int); 201 STATIC int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); 202 STATIC int wi_read_rid(struct wi_softc *, int, void *, int *); 203 STATIC int wi_write_rid(struct wi_softc *, int, void *, int); 204 205 STATIC int wi_newstate(struct ieee80211com *, enum ieee80211_state, int); 206 STATIC void wi_set_tim(struct ieee80211_node *, int); 207 208 STATIC int wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t); 209 STATIC void wi_scan_result(struct wi_softc *, int, int); 210 211 STATIC void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi); 212 STATIC void wi_mend_flags(struct wi_softc *, enum ieee80211_state); 213 214 static inline int 215 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) 216 { 217 218 val = htole16(val); 219 return wi_write_rid(sc, rid, &val, sizeof(val)); 220 } 221 222 static struct timeval lasttxerror; /* time of last tx error msg */ 223 static int curtxeps = 0; /* current tx error msgs/sec */ 224 static int wi_txerate = 0; /* tx error rate: max msgs/sec */ 225 226 #ifdef WI_DEBUG 227 #define WI_DEBUG_MAX 2 228 int wi_debug = 0; 229 230 #define DPRINTF(X) if (wi_debug) printf X 231 #define DPRINTF2(X) if (wi_debug > 1) printf X 232 #define IFF_DUMPPKTS(_ifp) \ 233 (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 234 static int wi_sysctl_verify_debug(SYSCTLFN_PROTO); 235 #else 236 #define DPRINTF(X) 237 #define DPRINTF2(X) 238 #define IFF_DUMPPKTS(_ifp) 0 239 #endif 240 241 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO | \ 242 WI_EV_TX | WI_EV_TX_EXC | WI_EV_CMD) 243 244 struct wi_card_ident 245 wi_card_ident[] = { 246 /* CARD_ID CARD_NAME FIRM_TYPE */ 247 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, 248 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, 249 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, 250 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, 251 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, 252 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, 253 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, 254 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, 255 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, 256 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, 257 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, 258 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, 259 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 260 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 261 { WI_NIC_3842_PCMCIA_ATM_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 262 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 263 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 264 { WI_NIC_3842_MINI_ATM_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 265 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 266 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 267 { WI_NIC_3842_PCI_ATM_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 268 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 269 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 270 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 271 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 272 { 0, NULL, 0 }, 273 }; 274 275 #ifndef _LKM 276 /* 277 * Setup sysctl(3) MIB, hw.wi.* 278 * 279 * TBD condition CTLFLAG_PERMANENT on being an LKM or not 280 */ 281 SYSCTL_SETUP(sysctl_wi, "sysctl wi(4) subtree setup") 282 { 283 int rc; 284 const struct sysctlnode *rnode; 285 #ifdef WI_DEBUG 286 const struct sysctlnode *cnode; 287 #endif /* WI_DEBUG */ 288 289 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 290 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 291 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 292 goto err; 293 294 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 295 CTLFLAG_PERMANENT, CTLTYPE_NODE, "wi", 296 "Lucent/Prism/Symbol 802.11 controls", 297 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 298 goto err; 299 300 #ifdef WI_DEBUG 301 /* control debugging printfs */ 302 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 303 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 304 "debug", SYSCTL_DESCR("Enable debugging output"), 305 wi_sysctl_verify_debug, 0, &wi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 306 goto err; 307 #endif /* WI_DEBUG */ 308 return; 309 err: 310 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 311 } 312 #endif 313 314 #ifdef WI_DEBUG 315 static int 316 wi_sysctl_verify(SYSCTLFN_ARGS, int lower, int upper) 317 { 318 int error, t; 319 struct sysctlnode node; 320 321 node = *rnode; 322 t = *(int*)rnode->sysctl_data; 323 node.sysctl_data = &t; 324 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 325 if (error || newp == NULL) 326 return (error); 327 328 if (t < lower || t > upper) 329 return (EINVAL); 330 331 *(int*)rnode->sysctl_data = t; 332 333 return (0); 334 } 335 336 static int 337 wi_sysctl_verify_debug(SYSCTLFN_ARGS) 338 { 339 return wi_sysctl_verify(SYSCTLFN_CALL(__UNCONST(rnode)), 340 0, WI_DEBUG_MAX); 341 } 342 #endif /* WI_DEBUG */ 343 344 STATIC int 345 wi_read_xrid(struct wi_softc *sc, int rid, void *buf, int ebuflen) 346 { 347 int buflen, rc; 348 349 buflen = ebuflen; 350 if ((rc = wi_read_rid(sc, rid, buf, &buflen)) != 0) 351 return rc; 352 353 if (buflen < ebuflen) { 354 #ifdef WI_DEBUG 355 printf("%s: rid=%#04x read %d, expected %d\n", __func__, 356 rid, buflen, ebuflen); 357 #endif 358 return -1; 359 } 360 return 0; 361 } 362 363 int 364 wi_attach(struct wi_softc *sc, const u_int8_t *macaddr) 365 { 366 struct ieee80211com *ic = &sc->sc_ic; 367 struct ifnet *ifp = &sc->sc_if; 368 int chan, nrate, buflen; 369 u_int16_t val, chanavail; 370 struct { 371 u_int16_t nrates; 372 char rates[IEEE80211_RATE_SIZE]; 373 } ratebuf; 374 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 375 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 376 }; 377 int s; 378 379 s = splnet(); 380 381 /* Make sure interrupts are disabled. */ 382 CSR_WRITE_2(sc, WI_INT_EN, 0); 383 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 384 385 sc->sc_invalid = 0; 386 387 /* Reset the NIC. */ 388 if (wi_reset(sc) != 0) { 389 sc->sc_invalid = 1; 390 splx(s); 391 return 1; 392 } 393 394 if (wi_read_xrid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, 395 IEEE80211_ADDR_LEN) != 0 || 396 IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) { 397 if (macaddr != NULL) 398 memcpy(ic->ic_myaddr, macaddr, IEEE80211_ADDR_LEN); 399 else { 400 printf(" could not get mac address, attach failed\n"); 401 splx(s); 402 return 1; 403 } 404 } 405 406 printf(" 802.11 address %s\n", ether_sprintf(ic->ic_myaddr)); 407 408 /* Read NIC identification */ 409 wi_read_nicid(sc); 410 411 memcpy(ifp->if_xname, device_xname(&sc->sc_dev), IFNAMSIZ); 412 ifp->if_softc = sc; 413 ifp->if_start = wi_start; 414 ifp->if_ioctl = wi_ioctl; 415 ifp->if_watchdog = wi_watchdog; 416 ifp->if_init = wi_init; 417 ifp->if_stop = wi_stop; 418 ifp->if_flags = 419 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST | IFF_NOTRAILERS; 420 IFQ_SET_READY(&ifp->if_snd); 421 422 ic->ic_ifp = ifp; 423 ic->ic_phytype = IEEE80211_T_DS; 424 ic->ic_opmode = IEEE80211_M_STA; 425 ic->ic_caps = IEEE80211_C_AHDEMO; 426 ic->ic_state = IEEE80211_S_INIT; 427 ic->ic_max_aid = WI_MAX_AID; 428 429 /* Find available channel */ 430 if (wi_read_xrid(sc, WI_RID_CHANNEL_LIST, &chanavail, 431 sizeof(chanavail)) != 0) { 432 aprint_normal_dev(&sc->sc_dev, "using default channel list\n"); 433 chanavail = htole16(0x1fff); /* assume 1-13 */ 434 } 435 for (chan = 16; chan > 0; chan--) { 436 if (!isset((u_int8_t*)&chanavail, chan - 1)) 437 continue; 438 ic->ic_ibss_chan = &ic->ic_channels[chan]; 439 ic->ic_channels[chan].ic_freq = 440 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); 441 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_B; 442 } 443 444 /* Find default IBSS channel */ 445 if (wi_read_xrid(sc, WI_RID_OWN_CHNL, &val, sizeof(val)) == 0) { 446 chan = le16toh(val); 447 if (isset((u_int8_t*)&chanavail, chan - 1)) 448 ic->ic_ibss_chan = &ic->ic_channels[chan]; 449 } 450 if (ic->ic_ibss_chan == NULL) { 451 aprint_error_dev(&sc->sc_dev, "no available channel\n"); 452 return 1; 453 } 454 455 if (sc->sc_firmware_type == WI_LUCENT) { 456 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 457 } else { 458 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 459 wi_read_xrid(sc, WI_RID_DBM_ADJUST, &val, sizeof(val)) == 0) 460 sc->sc_dbm_offset = le16toh(val); 461 else 462 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 463 } 464 465 sc->sc_flags |= WI_FLAGS_RSSADAPTSTA; 466 467 /* 468 * Set flags based on firmware version. 469 */ 470 switch (sc->sc_firmware_type) { 471 case WI_LUCENT: 472 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE; 473 #ifdef WI_HERMES_AUTOINC_WAR 474 /* XXX: not confirmed, but never seen for recent firmware */ 475 if (sc->sc_sta_firmware_ver < 40000) { 476 sc->sc_flags |= WI_FLAGS_BUG_AUTOINC; 477 } 478 #endif 479 if (sc->sc_sta_firmware_ver >= 60000) 480 sc->sc_flags |= WI_FLAGS_HAS_MOR; 481 if (sc->sc_sta_firmware_ver >= 60006) { 482 ic->ic_caps |= IEEE80211_C_IBSS; 483 ic->ic_caps |= IEEE80211_C_MONITOR; 484 } 485 ic->ic_caps |= IEEE80211_C_PMGT; 486 sc->sc_ibss_port = 1; 487 break; 488 489 case WI_INTERSIL: 490 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR; 491 sc->sc_flags |= WI_FLAGS_HAS_ROAMING; 492 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE; 493 if (sc->sc_sta_firmware_ver > 10101) 494 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 495 if (sc->sc_sta_firmware_ver >= 800) { 496 if (sc->sc_sta_firmware_ver != 10402) 497 ic->ic_caps |= IEEE80211_C_HOSTAP; 498 ic->ic_caps |= IEEE80211_C_IBSS; 499 ic->ic_caps |= IEEE80211_C_MONITOR; 500 } 501 ic->ic_caps |= IEEE80211_C_PMGT; 502 sc->sc_ibss_port = 0; 503 sc->sc_alt_retry = 2; 504 break; 505 506 case WI_SYMBOL: 507 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY; 508 if (sc->sc_sta_firmware_ver >= 20000) 509 ic->ic_caps |= IEEE80211_C_IBSS; 510 sc->sc_ibss_port = 4; 511 break; 512 } 513 514 /* 515 * Find out if we support WEP on this card. 516 */ 517 if (wi_read_xrid(sc, WI_RID_WEP_AVAIL, &val, sizeof(val)) == 0 && 518 val != htole16(0)) 519 ic->ic_caps |= IEEE80211_C_WEP; 520 521 /* Find supported rates. */ 522 buflen = sizeof(ratebuf); 523 if (wi_read_rid(sc, WI_RID_DATA_RATES, &ratebuf, &buflen) == 0 && 524 buflen > 2) { 525 nrate = le16toh(ratebuf.nrates); 526 if (nrate > IEEE80211_RATE_SIZE) 527 nrate = IEEE80211_RATE_SIZE; 528 memcpy(ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates, 529 &ratebuf.rates[0], nrate); 530 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates = nrate; 531 } else { 532 aprint_error_dev(&sc->sc_dev, "no supported rate list\n"); 533 return 1; 534 } 535 536 sc->sc_max_datalen = 2304; 537 sc->sc_rts_thresh = 2347; 538 sc->sc_frag_thresh = 2346; 539 sc->sc_system_scale = 1; 540 sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN; 541 sc->sc_roaming_mode = 1; 542 543 callout_init(&sc->sc_rssadapt_ch, 0); 544 545 /* 546 * Call MI attach routines. 547 */ 548 if_attach(ifp); 549 ieee80211_ifattach(ic); 550 551 sc->sc_newstate = ic->ic_newstate; 552 sc->sc_set_tim = ic->ic_set_tim; 553 ic->ic_newstate = wi_newstate; 554 ic->ic_node_alloc = wi_node_alloc; 555 ic->ic_node_free = wi_node_free; 556 ic->ic_set_tim = wi_set_tim; 557 558 ic->ic_crypto.cs_key_delete = wi_key_delete; 559 ic->ic_crypto.cs_key_set = wi_key_set; 560 ic->ic_crypto.cs_key_update_begin = wi_key_update_begin; 561 ic->ic_crypto.cs_key_update_end = wi_key_update_end; 562 563 ieee80211_media_init(ic, wi_media_change, wi_media_status); 564 565 #if NBPFILTER > 0 566 bpfattach2(ifp, DLT_IEEE802_11_RADIO, 567 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 568 #endif 569 570 memset(&sc->sc_rxtapu, 0, sizeof(sc->sc_rxtapu)); 571 sc->sc_rxtap.wr_ihdr.it_len = htole16(sizeof(sc->sc_rxtapu)); 572 sc->sc_rxtap.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT); 573 574 memset(&sc->sc_txtapu, 0, sizeof(sc->sc_txtapu)); 575 sc->sc_txtap.wt_ihdr.it_len = htole16(sizeof(sc->sc_txtapu)); 576 sc->sc_txtap.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT); 577 578 /* Attach is successful. */ 579 sc->sc_attached = 1; 580 581 splx(s); 582 ieee80211_announce(ic); 583 return 0; 584 } 585 586 int 587 wi_detach(struct wi_softc *sc) 588 { 589 struct ifnet *ifp = &sc->sc_if; 590 int s; 591 592 if (!sc->sc_attached) 593 return 0; 594 595 sc->sc_invalid = 1; 596 s = splnet(); 597 598 wi_stop(ifp, 1); 599 600 ieee80211_ifdetach(&sc->sc_ic); 601 if_detach(ifp); 602 splx(s); 603 return 0; 604 } 605 606 #ifdef __NetBSD__ 607 int 608 wi_activate(struct device *self, enum devact act) 609 { 610 struct wi_softc *sc = (struct wi_softc *)self; 611 int rv = 0, s; 612 613 s = splnet(); 614 switch (act) { 615 case DVACT_ACTIVATE: 616 rv = EOPNOTSUPP; 617 break; 618 619 case DVACT_DEACTIVATE: 620 if_deactivate(&sc->sc_if); 621 break; 622 } 623 splx(s); 624 return rv; 625 } 626 #endif /* __NetBSD__ */ 627 628 int 629 wi_intr(void *arg) 630 { 631 int i; 632 struct wi_softc *sc = arg; 633 struct ifnet *ifp = &sc->sc_if; 634 u_int16_t status; 635 636 if (sc->sc_enabled == 0 || 637 !device_is_active(&sc->sc_dev) || 638 (ifp->if_flags & IFF_RUNNING) == 0) 639 return 0; 640 641 if ((ifp->if_flags & IFF_UP) == 0) { 642 CSR_WRITE_2(sc, WI_INT_EN, 0); 643 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 644 return 1; 645 } 646 647 /* This is superfluous on Prism, but Lucent breaks if we 648 * do not disable interrupts. 649 */ 650 CSR_WRITE_2(sc, WI_INT_EN, 0); 651 652 /* maximum 10 loops per interrupt */ 653 for (i = 0; i < 10; i++) { 654 status = CSR_READ_2(sc, WI_EVENT_STAT); 655 #ifdef WI_DEBUG 656 if (wi_debug > 1) { 657 printf("%s: iter %d status %#04x\n", __func__, i, 658 status); 659 } 660 #endif /* WI_DEBUG */ 661 if ((status & WI_INTRS) == 0) 662 break; 663 664 sc->sc_status = status; 665 666 if (status & WI_EV_RX) 667 wi_rx_intr(sc); 668 669 if (status & WI_EV_ALLOC) 670 wi_txalloc_intr(sc); 671 672 if (status & WI_EV_TX) 673 wi_tx_intr(sc); 674 675 if (status & WI_EV_TX_EXC) 676 wi_tx_ex_intr(sc); 677 678 if (status & WI_EV_INFO) 679 wi_info_intr(sc); 680 681 CSR_WRITE_2(sc, WI_EVENT_ACK, sc->sc_status); 682 683 if (sc->sc_status & WI_EV_CMD) 684 wi_cmd_intr(sc); 685 686 if ((ifp->if_flags & IFF_OACTIVE) == 0 && 687 (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 && 688 !IFQ_IS_EMPTY(&ifp->if_snd)) 689 wi_start(ifp); 690 691 sc->sc_status = 0; 692 } 693 694 /* re-enable interrupts */ 695 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 696 697 sc->sc_status = 0; 698 699 return 1; 700 } 701 702 #define arraylen(a) (sizeof(a) / sizeof((a)[0])) 703 704 STATIC void 705 wi_rssdescs_init(struct wi_rssdesc (*rssd)[WI_NTXRSS], wi_rssdescq_t *rssdfree) 706 { 707 int i; 708 SLIST_INIT(rssdfree); 709 for (i = 0; i < arraylen(*rssd); i++) { 710 SLIST_INSERT_HEAD(rssdfree, &(*rssd)[i], rd_next); 711 } 712 } 713 714 STATIC void 715 wi_rssdescs_reset(struct ieee80211com *ic, struct wi_rssdesc (*rssd)[WI_NTXRSS], 716 wi_rssdescq_t *rssdfree, u_int8_t (*txpending)[IEEE80211_RATE_MAXSIZE]) 717 { 718 struct ieee80211_node *ni; 719 int i; 720 for (i = 0; i < arraylen(*rssd); i++) { 721 ni = (*rssd)[i].rd_desc.id_node; 722 (*rssd)[i].rd_desc.id_node = NULL; 723 if (ni != NULL && (ic->ic_ifp->if_flags & IFF_DEBUG) != 0) 724 printf("%s: cleaning outstanding rssadapt " 725 "descriptor for %s\n", 726 ic->ic_ifp->if_xname, ether_sprintf(ni->ni_macaddr)); 727 if (ni != NULL) 728 ieee80211_free_node(ni); 729 } 730 memset(*txpending, 0, sizeof(*txpending)); 731 wi_rssdescs_init(rssd, rssdfree); 732 } 733 734 STATIC int 735 wi_init(struct ifnet *ifp) 736 { 737 struct wi_softc *sc = ifp->if_softc; 738 struct ieee80211com *ic = &sc->sc_ic; 739 struct wi_joinreq join; 740 int i; 741 int error = 0, wasenabled; 742 743 DPRINTF(("wi_init: enabled %d\n", sc->sc_enabled)); 744 wasenabled = sc->sc_enabled; 745 if (!sc->sc_enabled) { 746 if ((error = (*sc->sc_enable)(sc)) != 0) 747 goto out; 748 sc->sc_enabled = 1; 749 } else 750 wi_stop(ifp, 0); 751 752 /* Symbol firmware cannot be initialized more than once */ 753 if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) 754 if ((error = wi_reset(sc)) != 0) 755 goto out; 756 757 /* common 802.11 configuration */ 758 ic->ic_flags &= ~IEEE80211_F_IBSSON; 759 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 760 switch (ic->ic_opmode) { 761 case IEEE80211_M_STA: 762 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS); 763 break; 764 case IEEE80211_M_IBSS: 765 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port); 766 ic->ic_flags |= IEEE80211_F_IBSSON; 767 break; 768 case IEEE80211_M_AHDEMO: 769 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC); 770 break; 771 case IEEE80211_M_HOSTAP: 772 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP); 773 break; 774 case IEEE80211_M_MONITOR: 775 if (sc->sc_firmware_type == WI_LUCENT) 776 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC); 777 wi_cmd(sc, WI_CMD_TEST | (WI_TEST_MONITOR << 8), 0, 0, 0); 778 break; 779 } 780 781 /* Intersil interprets this RID as joining ESS even in IBSS mode */ 782 if (sc->sc_firmware_type == WI_LUCENT && 783 (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0) 784 wi_write_val(sc, WI_RID_CREATE_IBSS, 1); 785 else 786 wi_write_val(sc, WI_RID_CREATE_IBSS, 0); 787 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 788 wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid, 789 ic->ic_des_esslen); 790 wi_write_val(sc, WI_RID_OWN_CHNL, 791 ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 792 wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen); 793 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 794 wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN); 795 if (ic->ic_caps & IEEE80211_C_PMGT) 796 wi_write_val(sc, WI_RID_PM_ENABLED, 797 (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0); 798 799 /* not yet common 802.11 configuration */ 800 wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen); 801 wi_write_val(sc, WI_RID_RTS_THRESH, sc->sc_rts_thresh); 802 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 803 wi_write_val(sc, WI_RID_FRAG_THRESH, sc->sc_frag_thresh); 804 805 /* driver specific 802.11 configuration */ 806 if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) 807 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale); 808 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 809 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode); 810 if (sc->sc_flags & WI_FLAGS_HAS_MOR) 811 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven); 812 wi_cfg_txrate(sc); 813 wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen); 814 815 #ifndef IEEE80211_NO_HOSTAP 816 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 817 sc->sc_firmware_type == WI_INTERSIL) { 818 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_lintval); 819 wi_write_val(sc, WI_RID_DTIM_PERIOD, 1); 820 } 821 #endif /* !IEEE80211_NO_HOSTAP */ 822 823 if (sc->sc_firmware_type == WI_INTERSIL) { 824 struct ieee80211_rateset *rs = 825 &ic->ic_sup_rates[IEEE80211_MODE_11B]; 826 u_int16_t basic = 0, supported = 0, rate; 827 828 for (i = 0; i < rs->rs_nrates; i++) { 829 switch (rs->rs_rates[i] & IEEE80211_RATE_VAL) { 830 case 2: 831 rate = 1; 832 break; 833 case 4: 834 rate = 2; 835 break; 836 case 11: 837 rate = 4; 838 break; 839 case 22: 840 rate = 8; 841 break; 842 default: 843 rate = 0; 844 break; 845 } 846 if (rs->rs_rates[i] & IEEE80211_RATE_BASIC) 847 basic |= rate; 848 supported |= rate; 849 } 850 wi_write_val(sc, WI_RID_BASIC_RATE, basic); 851 wi_write_val(sc, WI_RID_SUPPORT_RATE, supported); 852 wi_write_val(sc, WI_RID_ALT_RETRY_COUNT, sc->sc_alt_retry); 853 } 854 855 /* 856 * Initialize promisc mode. 857 * Being in Host-AP mode causes a great 858 * deal of pain if promiscuous mode is set. 859 * Therefore we avoid confusing the firmware 860 * and always reset promisc mode in Host-AP 861 * mode. Host-AP sees all the packets anyway. 862 */ 863 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 864 (ifp->if_flags & IFF_PROMISC) != 0) { 865 wi_write_val(sc, WI_RID_PROMISC, 1); 866 } else { 867 wi_write_val(sc, WI_RID_PROMISC, 0); 868 } 869 870 /* Configure WEP. */ 871 if (ic->ic_caps & IEEE80211_C_WEP) { 872 sc->sc_cnfauthmode = ic->ic_bss->ni_authmode; 873 wi_write_wep(sc); 874 } 875 876 /* Set multicast filter. */ 877 wi_write_multi(sc); 878 879 sc->sc_txalloc = 0; 880 sc->sc_txalloced = 0; 881 sc->sc_txqueue = 0; 882 sc->sc_txqueued = 0; 883 sc->sc_txstart = 0; 884 sc->sc_txstarted = 0; 885 886 if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) { 887 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 888 if (sc->sc_firmware_type == WI_SYMBOL) 889 sc->sc_buflen = 1585; /* XXX */ 890 for (i = 0; i < WI_NTXBUF; i++) { 891 error = wi_alloc_fid(sc, sc->sc_buflen, 892 &sc->sc_txd[i].d_fid); 893 if (error) { 894 aprint_error_dev(&sc->sc_dev, "tx buffer allocation failed\n"); 895 goto out; 896 } 897 DPRINTF2(("wi_init: txbuf %d allocated %x\n", i, 898 sc->sc_txd[i].d_fid)); 899 ++sc->sc_txalloced; 900 } 901 } 902 903 wi_rssdescs_init(&sc->sc_rssd, &sc->sc_rssdfree); 904 905 /* Enable desired port */ 906 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 907 ifp->if_flags |= IFF_RUNNING; 908 ifp->if_flags &= ~IFF_OACTIVE; 909 ic->ic_state = IEEE80211_S_INIT; 910 911 if (ic->ic_opmode == IEEE80211_M_AHDEMO || 912 ic->ic_opmode == IEEE80211_M_IBSS || 913 ic->ic_opmode == IEEE80211_M_MONITOR || 914 ic->ic_opmode == IEEE80211_M_HOSTAP) 915 ieee80211_create_ibss(ic, ic->ic_ibss_chan); 916 917 /* Enable interrupts */ 918 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 919 920 #ifndef IEEE80211_NO_HOSTAP 921 if (!wasenabled && 922 ic->ic_opmode == IEEE80211_M_HOSTAP && 923 sc->sc_firmware_type == WI_INTERSIL) { 924 /* XXX: some card need to be re-enabled for hostap */ 925 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 926 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 927 } 928 #endif /* !IEEE80211_NO_HOSTAP */ 929 930 if (ic->ic_opmode == IEEE80211_M_STA && 931 ((ic->ic_flags & IEEE80211_F_DESBSSID) || 932 ic->ic_des_chan != IEEE80211_CHAN_ANYC)) { 933 memset(&join, 0, sizeof(join)); 934 if (ic->ic_flags & IEEE80211_F_DESBSSID) 935 IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid); 936 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC) 937 join.wi_chan = 938 htole16(ieee80211_chan2ieee(ic, ic->ic_des_chan)); 939 /* Lucent firmware does not support the JOIN RID. */ 940 if (sc->sc_firmware_type != WI_LUCENT) 941 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 942 } 943 944 out: 945 if (error) { 946 printf("%s: interface not running\n", device_xname(&sc->sc_dev)); 947 wi_stop(ifp, 0); 948 } 949 DPRINTF(("wi_init: return %d\n", error)); 950 return error; 951 } 952 953 STATIC void 954 wi_txcmd_wait(struct wi_softc *sc) 955 { 956 KASSERT(sc->sc_txcmds == 1); 957 if (sc->sc_status & WI_EV_CMD) { 958 sc->sc_status &= ~WI_EV_CMD; 959 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 960 } else 961 (void)wi_cmd_wait(sc, WI_CMD_TX | WI_RECLAIM, 0); 962 } 963 964 STATIC void 965 wi_stop(struct ifnet *ifp, int disable) 966 { 967 struct wi_softc *sc = ifp->if_softc; 968 struct ieee80211com *ic = &sc->sc_ic; 969 int s; 970 971 if (!sc->sc_enabled) 972 return; 973 974 s = splnet(); 975 976 DPRINTF(("wi_stop: disable %d\n", disable)); 977 978 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 979 980 /* wait for tx command completion (deassoc, deauth) */ 981 while (sc->sc_txcmds > 0) { 982 wi_txcmd_wait(sc); 983 wi_cmd_intr(sc); 984 } 985 986 /* TBD wait for deassoc, deauth tx completion? */ 987 988 if (!sc->sc_invalid) { 989 CSR_WRITE_2(sc, WI_INT_EN, 0); 990 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 991 } 992 993 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 994 &sc->sc_txpending); 995 996 sc->sc_tx_timer = 0; 997 sc->sc_scan_timer = 0; 998 sc->sc_false_syns = 0; 999 sc->sc_naps = 0; 1000 ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING); 1001 ifp->if_timer = 0; 1002 1003 if (disable) { 1004 if (sc->sc_disable) 1005 (*sc->sc_disable)(sc); 1006 sc->sc_enabled = 0; 1007 } 1008 splx(s); 1009 } 1010 1011 /* 1012 * Choose a data rate for a packet len bytes long that suits the packet 1013 * type and the wireless conditions. 1014 * 1015 * TBD Adapt fragmentation threshold. 1016 */ 1017 STATIC int 1018 wi_choose_rate(struct ieee80211com *ic, struct ieee80211_node *ni, 1019 struct ieee80211_frame *wh, u_int len) 1020 { 1021 struct wi_softc *sc = ic->ic_ifp->if_softc; 1022 struct wi_node *wn = (void*)ni; 1023 struct ieee80211_rssadapt *ra = &wn->wn_rssadapt; 1024 int do_not_adapt, i, rateidx, s; 1025 1026 do_not_adapt = (ic->ic_opmode != IEEE80211_M_HOSTAP) && 1027 (sc->sc_flags & WI_FLAGS_RSSADAPTSTA) == 0; 1028 1029 s = splnet(); 1030 1031 rateidx = ieee80211_rssadapt_choose(ra, &ni->ni_rates, wh, len, 1032 ic->ic_fixed_rate, 1033 ((ic->ic_ifp->if_flags & IFF_DEBUG) == 0) ? NULL : ic->ic_ifp->if_xname, 1034 do_not_adapt); 1035 1036 ni->ni_txrate = rateidx; 1037 1038 if (ic->ic_opmode != IEEE80211_M_HOSTAP) { 1039 /* choose the slowest pending rate so that we don't 1040 * accidentally send a packet on the MAC's queue 1041 * too fast. TBD find out if the MAC labels Tx 1042 * packets w/ rate when enqueued or dequeued. 1043 */ 1044 for (i = 0; i < rateidx && sc->sc_txpending[i] == 0; i++); 1045 rateidx = i; 1046 } 1047 1048 splx(s); 1049 return (rateidx); 1050 } 1051 1052 STATIC void 1053 wi_raise_rate(struct ieee80211com *ic, struct ieee80211_rssdesc *id) 1054 { 1055 struct wi_node *wn; 1056 if (id->id_node == NULL) 1057 return; 1058 1059 wn = (void*)id->id_node; 1060 ieee80211_rssadapt_raise_rate(ic, &wn->wn_rssadapt, id); 1061 } 1062 1063 STATIC void 1064 wi_lower_rate(struct ieee80211com *ic, struct ieee80211_rssdesc *id) 1065 { 1066 struct ieee80211_node *ni; 1067 struct wi_node *wn; 1068 int s; 1069 1070 s = splnet(); 1071 1072 if ((ni = id->id_node) == NULL) { 1073 DPRINTF(("wi_lower_rate: missing node\n")); 1074 goto out; 1075 } 1076 1077 wn = (void *)ni; 1078 1079 ieee80211_rssadapt_lower_rate(ic, ni, &wn->wn_rssadapt, id); 1080 out: 1081 splx(s); 1082 return; 1083 } 1084 1085 STATIC void 1086 wi_start(struct ifnet *ifp) 1087 { 1088 struct wi_softc *sc = ifp->if_softc; 1089 struct ieee80211com *ic = &sc->sc_ic; 1090 struct ether_header *eh; 1091 struct ieee80211_node *ni; 1092 struct ieee80211_frame *wh; 1093 struct ieee80211_rateset *rs; 1094 struct wi_rssdesc *rd; 1095 struct ieee80211_rssdesc *id; 1096 struct mbuf *m0; 1097 struct wi_frame frmhdr; 1098 int cur, fid, off, rateidx; 1099 1100 if (!sc->sc_enabled || sc->sc_invalid) 1101 return; 1102 if (sc->sc_flags & WI_FLAGS_OUTRANGE) 1103 return; 1104 1105 memset(&frmhdr, 0, sizeof(frmhdr)); 1106 cur = sc->sc_txqueue; 1107 for (;;) { 1108 ni = ic->ic_bss; 1109 if (sc->sc_txalloced == 0 || SLIST_EMPTY(&sc->sc_rssdfree)) { 1110 ifp->if_flags |= IFF_OACTIVE; 1111 break; 1112 } 1113 if (!IF_IS_EMPTY(&ic->ic_mgtq)) { 1114 IF_DEQUEUE(&ic->ic_mgtq, m0); 1115 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1116 (void *)&frmhdr.wi_ehdr); 1117 frmhdr.wi_ehdr.ether_type = 0; 1118 wh = mtod(m0, struct ieee80211_frame *); 1119 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; 1120 m0->m_pkthdr.rcvif = NULL; 1121 } else if (ic->ic_state == IEEE80211_S_RUN) { 1122 IFQ_POLL(&ifp->if_snd, m0); 1123 if (m0 == NULL) 1124 break; 1125 IFQ_DEQUEUE(&ifp->if_snd, m0); 1126 ifp->if_opackets++; 1127 m_copydata(m0, 0, ETHER_HDR_LEN, 1128 (void *)&frmhdr.wi_ehdr); 1129 #if NBPFILTER > 0 1130 if (ifp->if_bpf) 1131 bpf_mtap(ifp->if_bpf, m0); 1132 #endif 1133 1134 eh = mtod(m0, struct ether_header *); 1135 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1136 if (ni == NULL) { 1137 ifp->if_oerrors++; 1138 continue; 1139 } 1140 if ((ni->ni_flags & IEEE80211_NODE_PWR_MGT) && 1141 (m0->m_flags & M_PWR_SAV) == 0) { 1142 ieee80211_pwrsave(ic, ni, m0); 1143 goto next; 1144 } 1145 if ((m0 = ieee80211_encap(ic, m0, ni)) == NULL) { 1146 ieee80211_free_node(ni); 1147 ifp->if_oerrors++; 1148 continue; 1149 } 1150 wh = mtod(m0, struct ieee80211_frame *); 1151 } else 1152 break; 1153 #if NBPFILTER > 0 1154 if (ic->ic_rawbpf) 1155 bpf_mtap(ic->ic_rawbpf, m0); 1156 #endif 1157 frmhdr.wi_tx_ctl = 1158 htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX|WI_TXCNTL_TX_OK); 1159 #ifndef IEEE80211_NO_HOSTAP 1160 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 1161 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1162 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 1163 (wh->i_fc[1] & IEEE80211_FC1_WEP)) { 1164 if (ieee80211_crypto_encap(ic, ni, m0) == NULL) { 1165 m_freem(m0); 1166 ifp->if_oerrors++; 1167 goto next; 1168 } 1169 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1170 } 1171 #endif /* !IEEE80211_NO_HOSTAP */ 1172 1173 rateidx = wi_choose_rate(ic, ni, wh, m0->m_pkthdr.len); 1174 rs = &ni->ni_rates; 1175 1176 #if NBPFILTER > 0 1177 if (sc->sc_drvbpf) { 1178 struct wi_tx_radiotap_header *tap = &sc->sc_txtap; 1179 1180 tap->wt_rate = rs->rs_rates[rateidx]; 1181 tap->wt_chan_freq = 1182 htole16(ic->ic_bss->ni_chan->ic_freq); 1183 tap->wt_chan_flags = 1184 htole16(ic->ic_bss->ni_chan->ic_flags); 1185 /* TBD tap->wt_flags */ 1186 1187 bpf_mtap2(sc->sc_drvbpf, tap, tap->wt_ihdr.it_len, m0); 1188 } 1189 #endif 1190 1191 rd = SLIST_FIRST(&sc->sc_rssdfree); 1192 id = &rd->rd_desc; 1193 id->id_len = m0->m_pkthdr.len; 1194 id->id_rateidx = ni->ni_txrate; 1195 id->id_rssi = ni->ni_rssi; 1196 1197 frmhdr.wi_tx_idx = rd - sc->sc_rssd; 1198 1199 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 1200 frmhdr.wi_tx_rate = 5 * (rs->rs_rates[rateidx] & 1201 IEEE80211_RATE_VAL); 1202 else if (sc->sc_flags & WI_FLAGS_RSSADAPTSTA) 1203 (void)wi_write_txrate(sc, rs->rs_rates[rateidx]); 1204 1205 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1206 (void *)&frmhdr.wi_whdr); 1207 m_adj(m0, sizeof(struct ieee80211_frame)); 1208 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1209 if (IFF_DUMPPKTS(ifp)) 1210 wi_dump_pkt(&frmhdr, ni, -1); 1211 fid = sc->sc_txd[cur].d_fid; 1212 off = sizeof(frmhdr); 1213 if (wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0 || 1214 wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0) { 1215 aprint_error_dev(&sc->sc_dev, "%s write fid %x failed\n", 1216 __func__, fid); 1217 ifp->if_oerrors++; 1218 m_freem(m0); 1219 goto next; 1220 } 1221 m_freem(m0); 1222 sc->sc_txpending[ni->ni_txrate]++; 1223 --sc->sc_txalloced; 1224 if (sc->sc_txqueued++ == 0) { 1225 #ifdef DIAGNOSTIC 1226 if (cur != sc->sc_txstart) 1227 printf("%s: ring is desynchronized\n", 1228 device_xname(&sc->sc_dev)); 1229 #endif 1230 wi_push_packet(sc); 1231 } else { 1232 #ifdef WI_RING_DEBUG 1233 printf("%s: queue %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1234 device_xname(&sc->sc_dev), fid, 1235 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1236 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1237 #endif 1238 } 1239 sc->sc_txqueue = cur = (cur + 1) % WI_NTXBUF; 1240 SLIST_REMOVE_HEAD(&sc->sc_rssdfree, rd_next); 1241 id->id_node = ni; 1242 continue; 1243 next: 1244 if (ni != NULL) 1245 ieee80211_free_node(ni); 1246 } 1247 } 1248 1249 1250 STATIC int 1251 wi_reset(struct wi_softc *sc) 1252 { 1253 int i, error; 1254 1255 DPRINTF(("wi_reset\n")); 1256 1257 if (sc->sc_reset) 1258 (*sc->sc_reset)(sc); 1259 1260 error = 0; 1261 for (i = 0; i < 5; i++) { 1262 if (sc->sc_invalid) 1263 return ENXIO; 1264 DELAY(20*1000); /* XXX: way too long! */ 1265 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0) 1266 break; 1267 } 1268 if (error) { 1269 aprint_error_dev(&sc->sc_dev, "init failed\n"); 1270 return error; 1271 } 1272 CSR_WRITE_2(sc, WI_INT_EN, 0); 1273 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 1274 1275 /* Calibrate timer. */ 1276 wi_write_val(sc, WI_RID_TICK_TIME, 0); 1277 return 0; 1278 } 1279 1280 STATIC void 1281 wi_watchdog(struct ifnet *ifp) 1282 { 1283 struct wi_softc *sc = ifp->if_softc; 1284 1285 ifp->if_timer = 0; 1286 if (!sc->sc_enabled) 1287 return; 1288 1289 if (sc->sc_tx_timer) { 1290 if (--sc->sc_tx_timer == 0) { 1291 printf("%s: device timeout\n", ifp->if_xname); 1292 ifp->if_oerrors++; 1293 wi_init(ifp); 1294 return; 1295 } 1296 ifp->if_timer = 1; 1297 } 1298 1299 if (sc->sc_scan_timer) { 1300 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT && 1301 sc->sc_firmware_type == WI_INTERSIL) { 1302 DPRINTF(("wi_watchdog: inquire scan\n")); 1303 wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0); 1304 } 1305 if (sc->sc_scan_timer) 1306 ifp->if_timer = 1; 1307 } 1308 1309 /* TODO: rate control */ 1310 ieee80211_watchdog(&sc->sc_ic); 1311 } 1312 1313 STATIC int 1314 wi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1315 { 1316 struct wi_softc *sc = ifp->if_softc; 1317 struct ieee80211com *ic = &sc->sc_ic; 1318 struct ifreq *ifr = (struct ifreq *)data; 1319 int s, error = 0; 1320 1321 if (!device_is_active(&sc->sc_dev)) 1322 return ENXIO; 1323 1324 s = splnet(); 1325 1326 switch (cmd) { 1327 case SIOCSIFFLAGS: 1328 /* 1329 * Can't do promisc and hostap at the same time. If all that's 1330 * changing is the promisc flag, try to short-circuit a call to 1331 * wi_init() by just setting PROMISC in the hardware. 1332 */ 1333 if (ifp->if_flags & IFF_UP) { 1334 if (sc->sc_enabled) { 1335 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1336 (ifp->if_flags & IFF_PROMISC) != 0) 1337 wi_write_val(sc, WI_RID_PROMISC, 1); 1338 else 1339 wi_write_val(sc, WI_RID_PROMISC, 0); 1340 } else 1341 error = wi_init(ifp); 1342 } else if (sc->sc_enabled) 1343 wi_stop(ifp, 1); 1344 break; 1345 case SIOCSIFMEDIA: 1346 case SIOCGIFMEDIA: 1347 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1348 break; 1349 case SIOCADDMULTI: 1350 case SIOCDELMULTI: 1351 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1352 if (ifp->if_flags & IFF_RUNNING) { 1353 /* do not rescan */ 1354 error = wi_write_multi(sc); 1355 } else 1356 error = 0; 1357 } 1358 break; 1359 case SIOCGIFGENERIC: 1360 error = wi_get_cfg(ifp, cmd, data); 1361 break; 1362 case SIOCSIFGENERIC: 1363 error = kauth_authorize_generic(curlwp->l_cred, 1364 KAUTH_GENERIC_ISSUSER, NULL); 1365 if (error) 1366 break; 1367 error = wi_set_cfg(ifp, cmd, data); 1368 if (error == ENETRESET) { 1369 if (ifp->if_flags & IFF_RUNNING) 1370 error = wi_init(ifp); 1371 else 1372 error = 0; 1373 } 1374 break; 1375 case SIOCS80211BSSID: 1376 if (sc->sc_firmware_type == WI_LUCENT) { 1377 error = ENODEV; 1378 break; 1379 } 1380 /* fall through */ 1381 default: 1382 ic->ic_flags |= sc->sc_ic_flags; 1383 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1384 sc->sc_ic_flags = ic->ic_flags & IEEE80211_F_DROPUNENC; 1385 if (error == ENETRESET) { 1386 if (sc->sc_enabled) 1387 error = wi_init(ifp); 1388 else 1389 error = 0; 1390 } 1391 break; 1392 } 1393 wi_mend_flags(sc, ic->ic_state); 1394 splx(s); 1395 return error; 1396 } 1397 1398 STATIC int 1399 wi_media_change(struct ifnet *ifp) 1400 { 1401 struct wi_softc *sc = ifp->if_softc; 1402 struct ieee80211com *ic = &sc->sc_ic; 1403 int error; 1404 1405 error = ieee80211_media_change(ifp); 1406 if (error == ENETRESET) { 1407 if (sc->sc_enabled) 1408 error = wi_init(ifp); 1409 else 1410 error = 0; 1411 } 1412 ifp->if_baudrate = ifmedia_baudrate(ic->ic_media.ifm_cur->ifm_media); 1413 1414 return error; 1415 } 1416 1417 STATIC void 1418 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1419 { 1420 struct wi_softc *sc = ifp->if_softc; 1421 struct ieee80211com *ic = &sc->sc_ic; 1422 u_int16_t val; 1423 int rate; 1424 1425 if (sc->sc_enabled == 0) { 1426 imr->ifm_active = IFM_IEEE80211 | IFM_NONE; 1427 imr->ifm_status = 0; 1428 return; 1429 } 1430 1431 imr->ifm_status = IFM_AVALID; 1432 imr->ifm_active = IFM_IEEE80211; 1433 if (ic->ic_state == IEEE80211_S_RUN && 1434 (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0) 1435 imr->ifm_status |= IFM_ACTIVE; 1436 if (wi_read_xrid(sc, WI_RID_CUR_TX_RATE, &val, sizeof(val)) == 0) { 1437 /* convert to 802.11 rate */ 1438 val = le16toh(val); 1439 rate = val * 2; 1440 if (sc->sc_firmware_type == WI_LUCENT) { 1441 if (rate == 10) 1442 rate = 11; /* 5.5Mbps */ 1443 } else { 1444 if (rate == 4*2) 1445 rate = 11; /* 5.5Mbps */ 1446 else if (rate == 8*2) 1447 rate = 22; /* 11Mbps */ 1448 } 1449 } else 1450 rate = 0; 1451 imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 1452 switch (ic->ic_opmode) { 1453 case IEEE80211_M_STA: 1454 break; 1455 case IEEE80211_M_IBSS: 1456 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1457 break; 1458 case IEEE80211_M_AHDEMO: 1459 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 1460 break; 1461 case IEEE80211_M_HOSTAP: 1462 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1463 break; 1464 case IEEE80211_M_MONITOR: 1465 imr->ifm_active |= IFM_IEEE80211_MONITOR; 1466 break; 1467 } 1468 } 1469 1470 STATIC struct ieee80211_node * 1471 wi_node_alloc(struct ieee80211_node_table *nt) 1472 { 1473 struct wi_node *wn = 1474 malloc(sizeof(struct wi_node), M_DEVBUF, M_NOWAIT | M_ZERO); 1475 return wn ? &wn->wn_node : NULL; 1476 } 1477 1478 STATIC void 1479 wi_node_free(struct ieee80211_node *ni) 1480 { 1481 struct wi_softc *sc = ni->ni_ic->ic_ifp->if_softc; 1482 int i; 1483 1484 for (i = 0; i < WI_NTXRSS; i++) { 1485 if (sc->sc_rssd[i].rd_desc.id_node == ni) 1486 sc->sc_rssd[i].rd_desc.id_node = NULL; 1487 } 1488 free(ni, M_DEVBUF); 1489 } 1490 1491 STATIC void 1492 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1493 { 1494 struct ieee80211com *ic = &sc->sc_ic; 1495 struct ieee80211_node *ni = ic->ic_bss; 1496 struct ifnet *ifp = &sc->sc_if; 1497 1498 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1499 return; 1500 1501 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid))); 1502 DPRINTF(("%s ?\n", ether_sprintf(new_bssid))); 1503 1504 /* In promiscuous mode, the BSSID field is not a reliable 1505 * indicator of the firmware's BSSID. Damp spurious 1506 * change-of-BSSID indications. 1507 */ 1508 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1509 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1510 WI_MAX_FALSE_SYNS)) 1511 return; 1512 1513 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1514 /* 1515 * XXX hack; we should create a new node with the new bssid 1516 * and replace the existing ic_bss with it but since we don't 1517 * process management frames to collect state we cheat by 1518 * reusing the existing node as we know wi_newstate will be 1519 * called and it will overwrite the node state. 1520 */ 1521 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1522 } 1523 1524 static inline void 1525 wi_rssadapt_input(struct ieee80211com *ic, struct ieee80211_node *ni, 1526 struct ieee80211_frame *wh, int rssi) 1527 { 1528 struct wi_node *wn; 1529 1530 if (ni == NULL) { 1531 printf("%s: null node", __func__); 1532 return; 1533 } 1534 1535 wn = (void*)ni; 1536 ieee80211_rssadapt_input(ic, ni, &wn->wn_rssadapt, rssi); 1537 } 1538 1539 STATIC void 1540 wi_rx_intr(struct wi_softc *sc) 1541 { 1542 struct ieee80211com *ic = &sc->sc_ic; 1543 struct ifnet *ifp = &sc->sc_if; 1544 struct ieee80211_node *ni; 1545 struct wi_frame frmhdr; 1546 struct mbuf *m; 1547 struct ieee80211_frame *wh; 1548 int fid, len, off, rssi; 1549 u_int8_t dir; 1550 u_int16_t status; 1551 u_int32_t rstamp; 1552 1553 fid = CSR_READ_2(sc, WI_RX_FID); 1554 1555 /* First read in the frame header */ 1556 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1557 aprint_error_dev(&sc->sc_dev, "%s read fid %x failed\n", 1558 __func__, fid); 1559 ifp->if_ierrors++; 1560 return; 1561 } 1562 1563 if (IFF_DUMPPKTS(ifp)) 1564 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal); 1565 1566 /* 1567 * Drop undecryptable or packets with receive errors here 1568 */ 1569 status = le16toh(frmhdr.wi_status); 1570 if ((status & WI_STAT_ERRSTAT) != 0 && 1571 ic->ic_opmode != IEEE80211_M_MONITOR) { 1572 ifp->if_ierrors++; 1573 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1574 return; 1575 } 1576 rssi = frmhdr.wi_rx_signal; 1577 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1578 le16toh(frmhdr.wi_rx_tstamp1); 1579 1580 len = le16toh(frmhdr.wi_dat_len); 1581 off = ALIGN(sizeof(struct ieee80211_frame)); 1582 1583 /* Sometimes the PRISM2.x returns bogusly large frames. Except 1584 * in monitor mode, just throw them away. 1585 */ 1586 if (off + len > MCLBYTES) { 1587 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1588 ifp->if_ierrors++; 1589 DPRINTF(("wi_rx_intr: oversized packet\n")); 1590 return; 1591 } else 1592 len = 0; 1593 } 1594 1595 MGETHDR(m, M_DONTWAIT, MT_DATA); 1596 if (m == NULL) { 1597 ifp->if_ierrors++; 1598 DPRINTF(("wi_rx_intr: MGET failed\n")); 1599 return; 1600 } 1601 if (off + len > MHLEN) { 1602 MCLGET(m, M_DONTWAIT); 1603 if ((m->m_flags & M_EXT) == 0) { 1604 m_freem(m); 1605 ifp->if_ierrors++; 1606 DPRINTF(("wi_rx_intr: MCLGET failed\n")); 1607 return; 1608 } 1609 } 1610 1611 m->m_data += off - sizeof(struct ieee80211_frame); 1612 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1613 wi_read_bap(sc, fid, sizeof(frmhdr), 1614 m->m_data + sizeof(struct ieee80211_frame), len); 1615 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1616 m->m_pkthdr.rcvif = ifp; 1617 1618 wh = mtod(m, struct ieee80211_frame *); 1619 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1620 /* 1621 * WEP is decrypted by hardware. Clear WEP bit 1622 * header for ieee80211_input(). 1623 */ 1624 wh->i_fc[1] &= ~IEEE80211_FC1_WEP; 1625 } 1626 #if NBPFILTER > 0 1627 if (sc->sc_drvbpf) { 1628 struct wi_rx_radiotap_header *tap = &sc->sc_rxtap; 1629 1630 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1631 tap->wr_antsignal = frmhdr.wi_rx_signal; 1632 tap->wr_antnoise = frmhdr.wi_rx_silence; 1633 tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 1634 tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 1635 if (frmhdr.wi_status & WI_STAT_PCF) 1636 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1637 1638 /* XXX IEEE80211_RADIOTAP_F_WEP */ 1639 bpf_mtap2(sc->sc_drvbpf, tap, tap->wr_ihdr.it_len, m); 1640 } 1641 #endif 1642 1643 /* synchronize driver's BSSID with firmware's BSSID */ 1644 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1645 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1646 wi_sync_bssid(sc, wh->i_addr3); 1647 1648 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1649 1650 ieee80211_input(ic, m, ni, rssi, rstamp); 1651 1652 wi_rssadapt_input(ic, ni, wh, rssi); 1653 1654 /* 1655 * The frame may have caused the node to be marked for 1656 * reclamation (e.g. in response to a DEAUTH message) 1657 * so use release_node here instead of unref_node. 1658 */ 1659 ieee80211_free_node(ni); 1660 } 1661 1662 STATIC void 1663 wi_tx_ex_intr(struct wi_softc *sc) 1664 { 1665 struct ieee80211com *ic = &sc->sc_ic; 1666 struct ifnet *ifp = &sc->sc_if; 1667 struct ieee80211_node *ni; 1668 struct ieee80211_rssdesc *id; 1669 struct wi_rssdesc *rssd; 1670 struct wi_frame frmhdr; 1671 int fid; 1672 u_int16_t status; 1673 1674 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1675 /* Read in the frame header */ 1676 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { 1677 aprint_error_dev(&sc->sc_dev, "%s read fid %x failed\n", 1678 __func__, fid); 1679 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1680 &sc->sc_txpending); 1681 goto out; 1682 } 1683 1684 if (frmhdr.wi_tx_idx >= WI_NTXRSS) { 1685 printf("%s: %s bad idx %02x\n", 1686 device_xname(&sc->sc_dev), __func__, frmhdr.wi_tx_idx); 1687 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1688 &sc->sc_txpending); 1689 goto out; 1690 } 1691 1692 status = le16toh(frmhdr.wi_status); 1693 1694 /* 1695 * Spontaneous station disconnects appear as xmit 1696 * errors. Don't announce them and/or count them 1697 * as an output error. 1698 */ 1699 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1700 aprint_error_dev(&sc->sc_dev, "tx failed"); 1701 if (status & WI_TXSTAT_RET_ERR) 1702 printf(", retry limit exceeded"); 1703 if (status & WI_TXSTAT_AGED_ERR) 1704 printf(", max transmit lifetime exceeded"); 1705 if (status & WI_TXSTAT_DISCONNECT) 1706 printf(", port disconnected"); 1707 if (status & WI_TXSTAT_FORM_ERR) 1708 printf(", invalid format (data len %u src %s)", 1709 le16toh(frmhdr.wi_dat_len), 1710 ether_sprintf(frmhdr.wi_ehdr.ether_shost)); 1711 if (status & ~0xf) 1712 printf(", status=0x%x", status); 1713 printf("\n"); 1714 } 1715 ifp->if_oerrors++; 1716 rssd = &sc->sc_rssd[frmhdr.wi_tx_idx]; 1717 id = &rssd->rd_desc; 1718 if ((status & WI_TXSTAT_RET_ERR) != 0) 1719 wi_lower_rate(ic, id); 1720 1721 ni = id->id_node; 1722 id->id_node = NULL; 1723 1724 if (ni == NULL) { 1725 aprint_error_dev(&sc->sc_dev, "%s null node, rssdesc %02x\n", 1726 __func__, frmhdr.wi_tx_idx); 1727 goto out; 1728 } 1729 1730 if (sc->sc_txpending[id->id_rateidx]-- == 0) { 1731 aprint_error_dev(&sc->sc_dev, "%s txpending[%i] wraparound", 1732 __func__, id->id_rateidx); 1733 sc->sc_txpending[id->id_rateidx] = 0; 1734 } 1735 if (ni != NULL) 1736 ieee80211_free_node(ni); 1737 SLIST_INSERT_HEAD(&sc->sc_rssdfree, rssd, rd_next); 1738 out: 1739 ifp->if_flags &= ~IFF_OACTIVE; 1740 } 1741 1742 STATIC void 1743 wi_txalloc_intr(struct wi_softc *sc) 1744 { 1745 int fid, cur; 1746 1747 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1748 1749 cur = sc->sc_txalloc; 1750 #ifdef DIAGNOSTIC 1751 if (sc->sc_txstarted == 0) { 1752 printf("%s: spurious alloc %x != %x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1753 device_xname(&sc->sc_dev), fid, sc->sc_txd[cur].d_fid, cur, 1754 sc->sc_txqueue, sc->sc_txstart, sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1755 return; 1756 } 1757 #endif 1758 --sc->sc_txstarted; 1759 ++sc->sc_txalloced; 1760 sc->sc_txd[cur].d_fid = fid; 1761 sc->sc_txalloc = (cur + 1) % WI_NTXBUF; 1762 #ifdef WI_RING_DEBUG 1763 printf("%s: alloc %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1764 device_xname(&sc->sc_dev), fid, 1765 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1766 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1767 #endif 1768 } 1769 1770 STATIC void 1771 wi_cmd_intr(struct wi_softc *sc) 1772 { 1773 struct ifnet *ifp = &sc->sc_if; 1774 1775 if (sc->sc_invalid) 1776 return; 1777 #ifdef WI_DEBUG 1778 if (wi_debug > 1) 1779 printf("%s: %d txcmds outstanding\n", __func__, sc->sc_txcmds); 1780 #endif 1781 KASSERT(sc->sc_txcmds > 0); 1782 1783 --sc->sc_txcmds; 1784 1785 if (--sc->sc_txqueued == 0) { 1786 sc->sc_tx_timer = 0; 1787 ifp->if_flags &= ~IFF_OACTIVE; 1788 #ifdef WI_RING_DEBUG 1789 printf("%s: cmd , alloc %d queue %d start %d alloced %d queued %d started %d\n", 1790 device_xname(&sc->sc_dev), 1791 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1792 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1793 #endif 1794 } else 1795 wi_push_packet(sc); 1796 } 1797 1798 STATIC void 1799 wi_push_packet(struct wi_softc *sc) 1800 { 1801 struct ifnet *ifp = &sc->sc_if; 1802 int cur, fid; 1803 1804 cur = sc->sc_txstart; 1805 fid = sc->sc_txd[cur].d_fid; 1806 1807 KASSERT(sc->sc_txcmds == 0); 1808 1809 if (wi_cmd_start(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1810 aprint_error_dev(&sc->sc_dev, "xmit failed\n"); 1811 /* XXX ring might have a hole */ 1812 } 1813 1814 if (sc->sc_txcmds++ > 0) 1815 printf("%s: %d tx cmds pending!!!\n", __func__, sc->sc_txcmds); 1816 1817 ++sc->sc_txstarted; 1818 #ifdef DIAGNOSTIC 1819 if (sc->sc_txstarted > WI_NTXBUF) 1820 aprint_error_dev(&sc->sc_dev, "too many buffers started\n"); 1821 #endif 1822 sc->sc_txstart = (cur + 1) % WI_NTXBUF; 1823 sc->sc_tx_timer = 5; 1824 ifp->if_timer = 1; 1825 #ifdef WI_RING_DEBUG 1826 printf("%s: push %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1827 device_xname(&sc->sc_dev), fid, 1828 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1829 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1830 #endif 1831 } 1832 1833 STATIC void 1834 wi_tx_intr(struct wi_softc *sc) 1835 { 1836 struct ieee80211com *ic = &sc->sc_ic; 1837 struct ifnet *ifp = &sc->sc_if; 1838 struct ieee80211_node *ni; 1839 struct ieee80211_rssdesc *id; 1840 struct wi_rssdesc *rssd; 1841 struct wi_frame frmhdr; 1842 int fid; 1843 1844 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1845 /* Read in the frame header */ 1846 if (wi_read_bap(sc, fid, offsetof(struct wi_frame, wi_tx_swsup2), 1847 &frmhdr.wi_tx_swsup2, 2) != 0) { 1848 aprint_error_dev(&sc->sc_dev, "%s read fid %x failed\n", 1849 __func__, fid); 1850 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1851 &sc->sc_txpending); 1852 goto out; 1853 } 1854 1855 if (frmhdr.wi_tx_idx >= WI_NTXRSS) { 1856 aprint_error_dev(&sc->sc_dev, "%s bad idx %02x\n", 1857 __func__, frmhdr.wi_tx_idx); 1858 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1859 &sc->sc_txpending); 1860 goto out; 1861 } 1862 1863 rssd = &sc->sc_rssd[frmhdr.wi_tx_idx]; 1864 id = &rssd->rd_desc; 1865 wi_raise_rate(ic, id); 1866 1867 ni = id->id_node; 1868 id->id_node = NULL; 1869 1870 if (ni == NULL) { 1871 aprint_error_dev(&sc->sc_dev, "%s null node, rssdesc %02x\n", 1872 __func__, frmhdr.wi_tx_idx); 1873 goto out; 1874 } 1875 1876 if (sc->sc_txpending[id->id_rateidx]-- == 0) { 1877 aprint_error_dev(&sc->sc_dev, "%s txpending[%i] wraparound", 1878 __func__, id->id_rateidx); 1879 sc->sc_txpending[id->id_rateidx] = 0; 1880 } 1881 if (ni != NULL) 1882 ieee80211_free_node(ni); 1883 SLIST_INSERT_HEAD(&sc->sc_rssdfree, rssd, rd_next); 1884 out: 1885 ifp->if_flags &= ~IFF_OACTIVE; 1886 } 1887 1888 STATIC void 1889 wi_info_intr(struct wi_softc *sc) 1890 { 1891 struct ieee80211com *ic = &sc->sc_ic; 1892 struct ifnet *ifp = &sc->sc_if; 1893 int i, fid, len, off; 1894 u_int16_t ltbuf[2]; 1895 u_int16_t stat; 1896 u_int32_t *ptr; 1897 1898 fid = CSR_READ_2(sc, WI_INFO_FID); 1899 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1900 1901 switch (le16toh(ltbuf[1])) { 1902 1903 case WI_INFO_LINK_STAT: 1904 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1905 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1906 switch (le16toh(stat)) { 1907 case CONNECTED: 1908 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 1909 if (ic->ic_state == IEEE80211_S_RUN && 1910 ic->ic_opmode != IEEE80211_M_IBSS) 1911 break; 1912 /* FALLTHROUGH */ 1913 case AP_CHANGE: 1914 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1915 break; 1916 case AP_IN_RANGE: 1917 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 1918 break; 1919 case AP_OUT_OF_RANGE: 1920 if (sc->sc_firmware_type == WI_SYMBOL && 1921 sc->sc_scan_timer > 0) { 1922 if (wi_cmd(sc, WI_CMD_INQUIRE, 1923 WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0) 1924 sc->sc_scan_timer = 0; 1925 break; 1926 } 1927 if (ic->ic_opmode == IEEE80211_M_STA) 1928 sc->sc_flags |= WI_FLAGS_OUTRANGE; 1929 break; 1930 case DISCONNECTED: 1931 case ASSOC_FAILED: 1932 if (ic->ic_opmode == IEEE80211_M_STA) 1933 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1934 break; 1935 } 1936 break; 1937 1938 case WI_INFO_COUNTERS: 1939 /* some card versions have a larger stats structure */ 1940 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1941 ptr = (u_int32_t *)&sc->sc_stats; 1942 off = sizeof(ltbuf); 1943 for (i = 0; i < len; i++, off += 2, ptr++) { 1944 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1945 stat = le16toh(stat); 1946 #ifdef WI_HERMES_STATS_WAR 1947 if (stat & 0xf000) 1948 stat = ~stat; 1949 #endif 1950 *ptr += stat; 1951 } 1952 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + 1953 sc->sc_stats.wi_tx_multi_retries + 1954 sc->sc_stats.wi_tx_retry_limit; 1955 break; 1956 1957 case WI_INFO_SCAN_RESULTS: 1958 case WI_INFO_HOST_SCAN_RESULTS: 1959 wi_scan_result(sc, fid, le16toh(ltbuf[0])); 1960 break; 1961 1962 default: 1963 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1964 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1965 break; 1966 } 1967 } 1968 1969 STATIC int 1970 wi_write_multi(struct wi_softc *sc) 1971 { 1972 struct ifnet *ifp = &sc->sc_if; 1973 int n; 1974 struct wi_mcast mlist; 1975 struct ether_multi *enm; 1976 struct ether_multistep estep; 1977 1978 if ((ifp->if_flags & IFF_PROMISC) != 0) { 1979 allmulti: 1980 ifp->if_flags |= IFF_ALLMULTI; 1981 memset(&mlist, 0, sizeof(mlist)); 1982 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1983 sizeof(mlist)); 1984 } 1985 1986 n = 0; 1987 ETHER_FIRST_MULTI(estep, &sc->sc_ec, enm); 1988 while (enm != NULL) { 1989 /* Punt on ranges or too many multicast addresses. */ 1990 if (!IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi) || 1991 n >= sizeof(mlist) / sizeof(mlist.wi_mcast[0])) 1992 goto allmulti; 1993 1994 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], enm->enm_addrlo); 1995 n++; 1996 ETHER_NEXT_MULTI(estep, enm); 1997 } 1998 ifp->if_flags &= ~IFF_ALLMULTI; 1999 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 2000 IEEE80211_ADDR_LEN * n); 2001 } 2002 2003 2004 STATIC void 2005 wi_read_nicid(struct wi_softc *sc) 2006 { 2007 struct wi_card_ident *id; 2008 char *p; 2009 int len; 2010 u_int16_t ver[4]; 2011 2012 /* getting chip identity */ 2013 memset(ver, 0, sizeof(ver)); 2014 len = sizeof(ver); 2015 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 2016 printf("%s: using ", device_xname(&sc->sc_dev)); 2017 DPRINTF2(("wi_read_nicid: CARD_ID: %x %x %x %x\n", le16toh(ver[0]), le16toh(ver[1]), le16toh(ver[2]), le16toh(ver[3]))); 2018 2019 sc->sc_firmware_type = WI_NOTYPE; 2020 for (id = wi_card_ident; id->card_name != NULL; id++) { 2021 if (le16toh(ver[0]) == id->card_id) { 2022 printf("%s", id->card_name); 2023 sc->sc_firmware_type = id->firm_type; 2024 break; 2025 } 2026 } 2027 if (sc->sc_firmware_type == WI_NOTYPE) { 2028 if (le16toh(ver[0]) & 0x8000) { 2029 printf("Unknown PRISM2 chip"); 2030 sc->sc_firmware_type = WI_INTERSIL; 2031 } else { 2032 printf("Unknown Lucent chip"); 2033 sc->sc_firmware_type = WI_LUCENT; 2034 } 2035 } 2036 2037 /* get primary firmware version (Only Prism chips) */ 2038 if (sc->sc_firmware_type != WI_LUCENT) { 2039 memset(ver, 0, sizeof(ver)); 2040 len = sizeof(ver); 2041 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 2042 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 2043 le16toh(ver[3]) * 100 + le16toh(ver[1]); 2044 } 2045 2046 /* get station firmware version */ 2047 memset(ver, 0, sizeof(ver)); 2048 len = sizeof(ver); 2049 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 2050 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 2051 le16toh(ver[3]) * 100 + le16toh(ver[1]); 2052 if (sc->sc_firmware_type == WI_INTERSIL && 2053 (sc->sc_sta_firmware_ver == 10102 || 2054 sc->sc_sta_firmware_ver == 20102)) { 2055 char ident[12]; 2056 memset(ident, 0, sizeof(ident)); 2057 len = sizeof(ident); 2058 /* value should be the format like "V2.00-11" */ 2059 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 2060 *(p = (char *)ident) >= 'A' && 2061 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 2062 sc->sc_firmware_type = WI_SYMBOL; 2063 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + 2064 (p[3] - '0') * 1000 + (p[4] - '0') * 100 + 2065 (p[6] - '0') * 10 + (p[7] - '0'); 2066 } 2067 } 2068 2069 printf("\n%s: %s Firmware: ", device_xname(&sc->sc_dev), 2070 sc->sc_firmware_type == WI_LUCENT ? "Lucent" : 2071 (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil")); 2072 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 2073 printf("Primary (%u.%u.%u), ", 2074 sc->sc_pri_firmware_ver / 10000, 2075 (sc->sc_pri_firmware_ver % 10000) / 100, 2076 sc->sc_pri_firmware_ver % 100); 2077 printf("Station (%u.%u.%u)\n", 2078 sc->sc_sta_firmware_ver / 10000, 2079 (sc->sc_sta_firmware_ver % 10000) / 100, 2080 sc->sc_sta_firmware_ver % 100); 2081 } 2082 2083 STATIC int 2084 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 2085 { 2086 struct wi_ssid ssid; 2087 2088 if (buflen > IEEE80211_NWID_LEN) 2089 return ENOBUFS; 2090 memset(&ssid, 0, sizeof(ssid)); 2091 ssid.wi_len = htole16(buflen); 2092 memcpy(ssid.wi_ssid, buf, buflen); 2093 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 2094 } 2095 2096 STATIC int 2097 wi_get_cfg(struct ifnet *ifp, u_long cmd, void *data) 2098 { 2099 struct wi_softc *sc = ifp->if_softc; 2100 struct ieee80211com *ic = &sc->sc_ic; 2101 struct ifreq *ifr = (struct ifreq *)data; 2102 struct wi_req wreq; 2103 int len, n, error; 2104 2105 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq)); 2106 if (error) 2107 return error; 2108 len = (wreq.wi_len - 1) * 2; 2109 if (len < sizeof(u_int16_t)) 2110 return ENOSPC; 2111 if (len > sizeof(wreq.wi_val)) 2112 len = sizeof(wreq.wi_val); 2113 2114 switch (wreq.wi_type) { 2115 2116 case WI_RID_IFACE_STATS: 2117 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats)); 2118 if (len < sizeof(sc->sc_stats)) 2119 error = ENOSPC; 2120 else 2121 len = sizeof(sc->sc_stats); 2122 break; 2123 2124 case WI_RID_ENCRYPTION: 2125 case WI_RID_TX_CRYPT_KEY: 2126 case WI_RID_DEFLT_CRYPT_KEYS: 2127 case WI_RID_TX_RATE: 2128 return ieee80211_cfgget(ic, cmd, data); 2129 2130 case WI_RID_MICROWAVE_OVEN: 2131 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) { 2132 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2133 &len); 2134 break; 2135 } 2136 wreq.wi_val[0] = htole16(sc->sc_microwave_oven); 2137 len = sizeof(u_int16_t); 2138 break; 2139 2140 case WI_RID_DBM_ADJUST: 2141 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) { 2142 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2143 &len); 2144 break; 2145 } 2146 wreq.wi_val[0] = htole16(sc->sc_dbm_offset); 2147 len = sizeof(u_int16_t); 2148 break; 2149 2150 case WI_RID_ROAMING_MODE: 2151 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) { 2152 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2153 &len); 2154 break; 2155 } 2156 wreq.wi_val[0] = htole16(sc->sc_roaming_mode); 2157 len = sizeof(u_int16_t); 2158 break; 2159 2160 case WI_RID_SYSTEM_SCALE: 2161 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) { 2162 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2163 &len); 2164 break; 2165 } 2166 wreq.wi_val[0] = htole16(sc->sc_system_scale); 2167 len = sizeof(u_int16_t); 2168 break; 2169 2170 case WI_RID_FRAG_THRESH: 2171 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) { 2172 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2173 &len); 2174 break; 2175 } 2176 wreq.wi_val[0] = htole16(sc->sc_frag_thresh); 2177 len = sizeof(u_int16_t); 2178 break; 2179 2180 case WI_RID_READ_APS: 2181 #ifndef IEEE80211_NO_HOSTAP 2182 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 2183 return ieee80211_cfgget(ic, cmd, data); 2184 #endif /* !IEEE80211_NO_HOSTAP */ 2185 if (sc->sc_scan_timer > 0) { 2186 error = EINPROGRESS; 2187 break; 2188 } 2189 n = sc->sc_naps; 2190 if (len < sizeof(n)) { 2191 error = ENOSPC; 2192 break; 2193 } 2194 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n) 2195 n = (len - sizeof(n)) / sizeof(struct wi_apinfo); 2196 len = sizeof(n) + sizeof(struct wi_apinfo) * n; 2197 memcpy(wreq.wi_val, &n, sizeof(n)); 2198 memcpy((char *)wreq.wi_val + sizeof(n), sc->sc_aps, 2199 sizeof(struct wi_apinfo) * n); 2200 break; 2201 2202 default: 2203 if (sc->sc_enabled) { 2204 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2205 &len); 2206 break; 2207 } 2208 switch (wreq.wi_type) { 2209 case WI_RID_MAX_DATALEN: 2210 wreq.wi_val[0] = htole16(sc->sc_max_datalen); 2211 len = sizeof(u_int16_t); 2212 break; 2213 case WI_RID_FRAG_THRESH: 2214 wreq.wi_val[0] = htole16(sc->sc_frag_thresh); 2215 len = sizeof(u_int16_t); 2216 break; 2217 case WI_RID_RTS_THRESH: 2218 wreq.wi_val[0] = htole16(sc->sc_rts_thresh); 2219 len = sizeof(u_int16_t); 2220 break; 2221 case WI_RID_CNFAUTHMODE: 2222 wreq.wi_val[0] = htole16(sc->sc_cnfauthmode); 2223 len = sizeof(u_int16_t); 2224 break; 2225 case WI_RID_NODENAME: 2226 if (len < sc->sc_nodelen + sizeof(u_int16_t)) { 2227 error = ENOSPC; 2228 break; 2229 } 2230 len = sc->sc_nodelen + sizeof(u_int16_t); 2231 wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2); 2232 memcpy(&wreq.wi_val[1], sc->sc_nodename, 2233 sc->sc_nodelen); 2234 break; 2235 default: 2236 return ieee80211_cfgget(ic, cmd, data); 2237 } 2238 break; 2239 } 2240 if (error) 2241 return error; 2242 wreq.wi_len = (len + 1) / 2 + 1; 2243 return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2); 2244 } 2245 2246 STATIC int 2247 wi_set_cfg(struct ifnet *ifp, u_long cmd, void *data) 2248 { 2249 struct wi_softc *sc = ifp->if_softc; 2250 struct ieee80211com *ic = &sc->sc_ic; 2251 struct ifreq *ifr = (struct ifreq *)data; 2252 struct ieee80211_rateset *rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 2253 struct wi_req wreq; 2254 struct mbuf *m; 2255 int i, len, error; 2256 2257 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq)); 2258 if (error) 2259 return error; 2260 len = (wreq.wi_len - 1) * 2; 2261 switch (wreq.wi_type) { 2262 case WI_RID_MAC_NODE: 2263 (void)memcpy(ic->ic_myaddr, wreq.wi_val, ETHER_ADDR_LEN); 2264 if_set_sadl(ifp, ic->ic_myaddr, ETHER_ADDR_LEN); 2265 wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, 2266 IEEE80211_ADDR_LEN); 2267 break; 2268 2269 case WI_RID_DBM_ADJUST: 2270 return ENODEV; 2271 2272 case WI_RID_NODENAME: 2273 if (le16toh(wreq.wi_val[0]) * 2 > len || 2274 le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) { 2275 error = ENOSPC; 2276 break; 2277 } 2278 if (sc->sc_enabled) { 2279 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2280 len); 2281 if (error) 2282 break; 2283 } 2284 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2; 2285 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen); 2286 break; 2287 2288 case WI_RID_MICROWAVE_OVEN: 2289 case WI_RID_ROAMING_MODE: 2290 case WI_RID_SYSTEM_SCALE: 2291 case WI_RID_FRAG_THRESH: 2292 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN && 2293 (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0) 2294 break; 2295 if (wreq.wi_type == WI_RID_ROAMING_MODE && 2296 (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0) 2297 break; 2298 if (wreq.wi_type == WI_RID_SYSTEM_SCALE && 2299 (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0) 2300 break; 2301 if (wreq.wi_type == WI_RID_FRAG_THRESH && 2302 (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0) 2303 break; 2304 /* FALLTHROUGH */ 2305 case WI_RID_RTS_THRESH: 2306 case WI_RID_CNFAUTHMODE: 2307 case WI_RID_MAX_DATALEN: 2308 if (sc->sc_enabled) { 2309 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2310 sizeof(u_int16_t)); 2311 if (error) 2312 break; 2313 } 2314 switch (wreq.wi_type) { 2315 case WI_RID_FRAG_THRESH: 2316 sc->sc_frag_thresh = le16toh(wreq.wi_val[0]); 2317 break; 2318 case WI_RID_RTS_THRESH: 2319 sc->sc_rts_thresh = le16toh(wreq.wi_val[0]); 2320 break; 2321 case WI_RID_MICROWAVE_OVEN: 2322 sc->sc_microwave_oven = le16toh(wreq.wi_val[0]); 2323 break; 2324 case WI_RID_ROAMING_MODE: 2325 sc->sc_roaming_mode = le16toh(wreq.wi_val[0]); 2326 break; 2327 case WI_RID_SYSTEM_SCALE: 2328 sc->sc_system_scale = le16toh(wreq.wi_val[0]); 2329 break; 2330 case WI_RID_CNFAUTHMODE: 2331 sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]); 2332 break; 2333 case WI_RID_MAX_DATALEN: 2334 sc->sc_max_datalen = le16toh(wreq.wi_val[0]); 2335 break; 2336 } 2337 break; 2338 2339 case WI_RID_TX_RATE: 2340 switch (le16toh(wreq.wi_val[0])) { 2341 case 3: 2342 ic->ic_fixed_rate = -1; 2343 break; 2344 default: 2345 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 2346 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) 2347 / 2 == le16toh(wreq.wi_val[0])) 2348 break; 2349 } 2350 if (i == IEEE80211_RATE_SIZE) 2351 return EINVAL; 2352 ic->ic_fixed_rate = i; 2353 } 2354 if (sc->sc_enabled) 2355 error = wi_cfg_txrate(sc); 2356 break; 2357 2358 case WI_RID_SCAN_APS: 2359 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP) 2360 error = wi_scan_ap(sc, 0x3fff, 0x000f); 2361 break; 2362 2363 case WI_RID_MGMT_XMIT: 2364 if (!sc->sc_enabled) { 2365 error = ENETDOWN; 2366 break; 2367 } 2368 if (ic->ic_mgtq.ifq_len > 5) { 2369 error = EAGAIN; 2370 break; 2371 } 2372 /* XXX wi_len looks in u_int8_t, not in u_int16_t */ 2373 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL); 2374 if (m == NULL) { 2375 error = ENOMEM; 2376 break; 2377 } 2378 IF_ENQUEUE(&ic->ic_mgtq, m); 2379 break; 2380 2381 default: 2382 if (sc->sc_enabled) { 2383 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2384 len); 2385 if (error) 2386 break; 2387 } 2388 error = ieee80211_cfgset(ic, cmd, data); 2389 break; 2390 } 2391 return error; 2392 } 2393 2394 /* Rate is 0 for hardware auto-select, otherwise rate is 2395 * 2, 4, 11, or 22 (units of 500Kbps). 2396 */ 2397 STATIC int 2398 wi_write_txrate(struct wi_softc *sc, int rate) 2399 { 2400 u_int16_t hwrate; 2401 2402 /* rate: 0, 2, 4, 11, 22 */ 2403 switch (sc->sc_firmware_type) { 2404 case WI_LUCENT: 2405 switch (rate & IEEE80211_RATE_VAL) { 2406 case 2: 2407 hwrate = 1; 2408 break; 2409 case 4: 2410 hwrate = 2; 2411 break; 2412 default: 2413 hwrate = 3; /* auto */ 2414 break; 2415 case 11: 2416 hwrate = 4; 2417 break; 2418 case 22: 2419 hwrate = 5; 2420 break; 2421 } 2422 break; 2423 default: 2424 switch (rate & IEEE80211_RATE_VAL) { 2425 case 2: 2426 hwrate = 1; 2427 break; 2428 case 4: 2429 hwrate = 2; 2430 break; 2431 case 11: 2432 hwrate = 4; 2433 break; 2434 case 22: 2435 hwrate = 8; 2436 break; 2437 default: 2438 hwrate = 15; /* auto */ 2439 break; 2440 } 2441 break; 2442 } 2443 2444 if (sc->sc_tx_rate == hwrate) 2445 return 0; 2446 2447 if (sc->sc_if.if_flags & IFF_DEBUG) 2448 printf("%s: tx rate %d -> %d (%d)\n", __func__, sc->sc_tx_rate, 2449 hwrate, rate); 2450 2451 sc->sc_tx_rate = hwrate; 2452 2453 return wi_write_val(sc, WI_RID_TX_RATE, sc->sc_tx_rate); 2454 } 2455 2456 STATIC int 2457 wi_cfg_txrate(struct wi_softc *sc) 2458 { 2459 struct ieee80211com *ic = &sc->sc_ic; 2460 struct ieee80211_rateset *rs; 2461 int rate; 2462 2463 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 2464 2465 sc->sc_tx_rate = 0; /* force write to RID */ 2466 2467 if (ic->ic_fixed_rate < 0) 2468 rate = 0; /* auto */ 2469 else 2470 rate = rs->rs_rates[ic->ic_fixed_rate]; 2471 2472 return wi_write_txrate(sc, rate); 2473 } 2474 2475 STATIC int 2476 wi_key_delete(struct ieee80211com *ic, const struct ieee80211_key *k) 2477 { 2478 struct wi_softc *sc = ic->ic_ifp->if_softc; 2479 u_int keyix = k->wk_keyix; 2480 2481 DPRINTF(("%s: delete key %u\n", __func__, keyix)); 2482 2483 if (keyix >= IEEE80211_WEP_NKID) 2484 return 0; 2485 if (k->wk_keylen != 0) 2486 sc->sc_flags &= ~WI_FLAGS_WEP_VALID; 2487 2488 return 1; 2489 } 2490 2491 static int 2492 wi_key_set(struct ieee80211com *ic, const struct ieee80211_key *k, 2493 const u_int8_t mac[IEEE80211_ADDR_LEN]) 2494 { 2495 struct wi_softc *sc = ic->ic_ifp->if_softc; 2496 2497 DPRINTF(("%s: set key %u\n", __func__, k->wk_keyix)); 2498 2499 if (k->wk_keyix >= IEEE80211_WEP_NKID) 2500 return 0; 2501 2502 sc->sc_flags &= ~WI_FLAGS_WEP_VALID; 2503 2504 return 1; 2505 } 2506 2507 STATIC void 2508 wi_key_update_begin(struct ieee80211com *ic) 2509 { 2510 DPRINTF(("%s:\n", __func__)); 2511 } 2512 2513 STATIC void 2514 wi_key_update_end(struct ieee80211com *ic) 2515 { 2516 struct ifnet *ifp = ic->ic_ifp; 2517 struct wi_softc *sc = ifp->if_softc; 2518 2519 DPRINTF(("%s:\n", __func__)); 2520 2521 if ((sc->sc_flags & WI_FLAGS_WEP_VALID) != 0) 2522 return; 2523 if ((ic->ic_caps & IEEE80211_C_WEP) != 0 && sc->sc_enabled && 2524 !sc->sc_invalid) 2525 (void)wi_write_wep(sc); 2526 } 2527 2528 STATIC int 2529 wi_write_wep(struct wi_softc *sc) 2530 { 2531 struct ifnet *ifp = &sc->sc_if; 2532 struct ieee80211com *ic = &sc->sc_ic; 2533 int error = 0; 2534 int i, keylen; 2535 u_int16_t val; 2536 struct wi_key wkey[IEEE80211_WEP_NKID]; 2537 2538 if ((ifp->if_flags & IFF_RUNNING) != 0) 2539 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 2540 2541 switch (sc->sc_firmware_type) { 2542 case WI_LUCENT: 2543 val = (ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 2544 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 2545 if (error) 2546 break; 2547 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_def_txkey); 2548 if (error) 2549 break; 2550 memset(wkey, 0, sizeof(wkey)); 2551 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2552 keylen = ic->ic_nw_keys[i].wk_keylen; 2553 wkey[i].wi_keylen = htole16(keylen); 2554 memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key, 2555 keylen); 2556 } 2557 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 2558 wkey, sizeof(wkey)); 2559 break; 2560 2561 case WI_INTERSIL: 2562 case WI_SYMBOL: 2563 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2564 /* 2565 * ONLY HWB3163 EVAL-CARD Firmware version 2566 * less than 0.8 variant2 2567 * 2568 * If promiscuous mode disable, Prism2 chip 2569 * does not work with WEP . 2570 * It is under investigation for details. 2571 * (ichiro@NetBSD.org) 2572 */ 2573 if (sc->sc_firmware_type == WI_INTERSIL && 2574 sc->sc_sta_firmware_ver < 802 ) { 2575 /* firm ver < 0.8 variant 2 */ 2576 wi_write_val(sc, WI_RID_PROMISC, 1); 2577 } 2578 wi_write_val(sc, WI_RID_CNFAUTHMODE, 2579 sc->sc_cnfauthmode); 2580 val = PRIVACY_INVOKED; 2581 if ((sc->sc_ic_flags & IEEE80211_F_DROPUNENC) != 0) 2582 val |= EXCLUDE_UNENCRYPTED; 2583 #ifndef IEEE80211_NO_HOSTAP 2584 /* 2585 * Encryption firmware has a bug for HostAP mode. 2586 */ 2587 if (sc->sc_firmware_type == WI_INTERSIL && 2588 ic->ic_opmode == IEEE80211_M_HOSTAP) 2589 val |= HOST_ENCRYPT; 2590 #endif /* !IEEE80211_NO_HOSTAP */ 2591 } else { 2592 wi_write_val(sc, WI_RID_CNFAUTHMODE, 2593 IEEE80211_AUTH_OPEN); 2594 val = HOST_ENCRYPT | HOST_DECRYPT; 2595 } 2596 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 2597 if (error) 2598 break; 2599 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, 2600 ic->ic_def_txkey); 2601 if (error) 2602 break; 2603 /* 2604 * It seems that the firmware accept 104bit key only if 2605 * all the keys have 104bit length. We get the length of 2606 * the transmit key and use it for all other keys. 2607 * Perhaps we should use software WEP for such situation. 2608 */ 2609 if (ic->ic_def_txkey == IEEE80211_KEYIX_NONE || 2610 IEEE80211_KEY_UNDEFINED(ic->ic_nw_keys[ic->ic_def_txkey])) 2611 keylen = 13; /* No keys => 104bit ok */ 2612 else 2613 keylen = ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen; 2614 2615 if (keylen > IEEE80211_WEP_KEYLEN) 2616 keylen = 13; /* 104bit keys */ 2617 else 2618 keylen = IEEE80211_WEP_KEYLEN; 2619 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2620 error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i, 2621 ic->ic_nw_keys[i].wk_key, keylen); 2622 if (error) 2623 break; 2624 } 2625 break; 2626 } 2627 if ((ifp->if_flags & IFF_RUNNING) != 0) 2628 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 2629 if (error == 0) 2630 sc->sc_flags |= WI_FLAGS_WEP_VALID; 2631 return error; 2632 } 2633 2634 /* Must be called at proper protection level! */ 2635 STATIC int 2636 wi_cmd_start(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 2637 { 2638 #ifdef WI_HISTOGRAM 2639 static int hist1[11]; 2640 static int hist1count; 2641 #endif 2642 int i; 2643 2644 /* wait for the busy bit to clear */ 2645 for (i = 500; i > 0; i--) { /* 5s */ 2646 if ((CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY) == 0) 2647 break; 2648 if (sc->sc_invalid) 2649 return ENXIO; 2650 DELAY(1000); /* 1 m sec */ 2651 } 2652 if (i == 0) { 2653 aprint_error_dev(&sc->sc_dev, "wi_cmd: busy bit won't clear.\n"); 2654 return(ETIMEDOUT); 2655 } 2656 #ifdef WI_HISTOGRAM 2657 if (i > 490) 2658 hist1[500 - i]++; 2659 else 2660 hist1[10]++; 2661 if (++hist1count == 1000) { 2662 hist1count = 0; 2663 printf("%s: hist1: %d %d %d %d %d %d %d %d %d %d %d\n", 2664 device_xname(&sc->sc_dev), 2665 hist1[0], hist1[1], hist1[2], hist1[3], hist1[4], 2666 hist1[5], hist1[6], hist1[7], hist1[8], hist1[9], 2667 hist1[10]); 2668 } 2669 #endif 2670 CSR_WRITE_2(sc, WI_PARAM0, val0); 2671 CSR_WRITE_2(sc, WI_PARAM1, val1); 2672 CSR_WRITE_2(sc, WI_PARAM2, val2); 2673 CSR_WRITE_2(sc, WI_COMMAND, cmd); 2674 2675 return 0; 2676 } 2677 2678 STATIC int 2679 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 2680 { 2681 int rc; 2682 2683 #ifdef WI_DEBUG 2684 if (wi_debug) { 2685 printf("%s: [enter] %d txcmds outstanding\n", __func__, 2686 sc->sc_txcmds); 2687 } 2688 #endif 2689 if (sc->sc_txcmds > 0) 2690 wi_txcmd_wait(sc); 2691 2692 if ((rc = wi_cmd_start(sc, cmd, val0, val1, val2)) != 0) 2693 return rc; 2694 2695 if (cmd == WI_CMD_INI) { 2696 /* XXX: should sleep here. */ 2697 if (sc->sc_invalid) 2698 return ENXIO; 2699 DELAY(100*1000); 2700 } 2701 rc = wi_cmd_wait(sc, cmd, val0); 2702 2703 #ifdef WI_DEBUG 2704 if (wi_debug) { 2705 printf("%s: [ ] %d txcmds outstanding\n", __func__, 2706 sc->sc_txcmds); 2707 } 2708 #endif 2709 if (sc->sc_txcmds > 0) 2710 wi_cmd_intr(sc); 2711 2712 #ifdef WI_DEBUG 2713 if (wi_debug) { 2714 printf("%s: [leave] %d txcmds outstanding\n", __func__, 2715 sc->sc_txcmds); 2716 } 2717 #endif 2718 return rc; 2719 } 2720 2721 STATIC int 2722 wi_cmd_wait(struct wi_softc *sc, int cmd, int val0) 2723 { 2724 #ifdef WI_HISTOGRAM 2725 static int hist2[11]; 2726 static int hist2count; 2727 #endif 2728 int i, status; 2729 #ifdef WI_DEBUG 2730 if (wi_debug > 1) 2731 printf("%s: cmd=%#x, arg=%#x\n", __func__, cmd, val0); 2732 #endif /* WI_DEBUG */ 2733 2734 /* wait for the cmd completed bit */ 2735 for (i = 0; i < WI_TIMEOUT; i++) { 2736 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD) 2737 break; 2738 if (sc->sc_invalid) 2739 return ENXIO; 2740 DELAY(WI_DELAY); 2741 } 2742 2743 #ifdef WI_HISTOGRAM 2744 if (i < 100) 2745 hist2[i/10]++; 2746 else 2747 hist2[10]++; 2748 if (++hist2count == 1000) { 2749 hist2count = 0; 2750 printf("%s: hist2: %d %d %d %d %d %d %d %d %d %d %d\n", 2751 device_xname(&sc->sc_dev), 2752 hist2[0], hist2[1], hist2[2], hist2[3], hist2[4], 2753 hist2[5], hist2[6], hist2[7], hist2[8], hist2[9], 2754 hist2[10]); 2755 } 2756 #endif 2757 2758 status = CSR_READ_2(sc, WI_STATUS); 2759 2760 if (i == WI_TIMEOUT) { 2761 aprint_error_dev(&sc->sc_dev, "command timed out, cmd=0x%x, arg=0x%x\n", 2762 cmd, val0); 2763 return ETIMEDOUT; 2764 } 2765 2766 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 2767 2768 if (status & WI_STAT_CMD_RESULT) { 2769 aprint_error_dev(&sc->sc_dev, "command failed, cmd=0x%x, arg=0x%x\n", 2770 cmd, val0); 2771 return EIO; 2772 } 2773 return 0; 2774 } 2775 2776 STATIC int 2777 wi_seek_bap(struct wi_softc *sc, int id, int off) 2778 { 2779 #ifdef WI_HISTOGRAM 2780 static int hist4[11]; 2781 static int hist4count; 2782 #endif 2783 int i, status; 2784 2785 CSR_WRITE_2(sc, WI_SEL0, id); 2786 CSR_WRITE_2(sc, WI_OFF0, off); 2787 2788 for (i = 0; ; i++) { 2789 status = CSR_READ_2(sc, WI_OFF0); 2790 if ((status & WI_OFF_BUSY) == 0) 2791 break; 2792 if (i == WI_TIMEOUT) { 2793 aprint_error_dev(&sc->sc_dev, "timeout in wi_seek to %x/%x\n", 2794 id, off); 2795 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2796 return ETIMEDOUT; 2797 } 2798 if (sc->sc_invalid) 2799 return ENXIO; 2800 DELAY(2); 2801 } 2802 #ifdef WI_HISTOGRAM 2803 if (i < 100) 2804 hist4[i/10]++; 2805 else 2806 hist4[10]++; 2807 if (++hist4count == 2500) { 2808 hist4count = 0; 2809 printf("%s: hist4: %d %d %d %d %d %d %d %d %d %d %d\n", 2810 device_xname(&sc->sc_dev), 2811 hist4[0], hist4[1], hist4[2], hist4[3], hist4[4], 2812 hist4[5], hist4[6], hist4[7], hist4[8], hist4[9], 2813 hist4[10]); 2814 } 2815 #endif 2816 if (status & WI_OFF_ERR) { 2817 printf("%s: failed in wi_seek to %x/%x\n", 2818 device_xname(&sc->sc_dev), id, off); 2819 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2820 return EIO; 2821 } 2822 sc->sc_bap_id = id; 2823 sc->sc_bap_off = off; 2824 return 0; 2825 } 2826 2827 STATIC int 2828 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 2829 { 2830 int error, cnt; 2831 2832 if (buflen == 0) 2833 return 0; 2834 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 2835 if ((error = wi_seek_bap(sc, id, off)) != 0) 2836 return error; 2837 } 2838 cnt = (buflen + 1) / 2; 2839 CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 2840 sc->sc_bap_off += cnt * 2; 2841 return 0; 2842 } 2843 2844 STATIC int 2845 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 2846 { 2847 int error, cnt; 2848 2849 if (buflen == 0) 2850 return 0; 2851 2852 #ifdef WI_HERMES_AUTOINC_WAR 2853 again: 2854 #endif 2855 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 2856 if ((error = wi_seek_bap(sc, id, off)) != 0) 2857 return error; 2858 } 2859 cnt = (buflen + 1) / 2; 2860 CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 2861 sc->sc_bap_off += cnt * 2; 2862 2863 #ifdef WI_HERMES_AUTOINC_WAR 2864 /* 2865 * According to the comments in the HCF Light code, there is a bug 2866 * in the Hermes (or possibly in certain Hermes firmware revisions) 2867 * where the chip's internal autoincrement counter gets thrown off 2868 * during data writes: the autoincrement is missed, causing one 2869 * data word to be overwritten and subsequent words to be written to 2870 * the wrong memory locations. The end result is that we could end 2871 * up transmitting bogus frames without realizing it. The workaround 2872 * for this is to write a couple of extra guard words after the end 2873 * of the transfer, then attempt to read then back. If we fail to 2874 * locate the guard words where we expect them, we preform the 2875 * transfer over again. 2876 */ 2877 if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) { 2878 CSR_WRITE_2(sc, WI_DATA0, 0x1234); 2879 CSR_WRITE_2(sc, WI_DATA0, 0x5678); 2880 wi_seek_bap(sc, id, sc->sc_bap_off); 2881 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2882 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 || 2883 CSR_READ_2(sc, WI_DATA0) != 0x5678) { 2884 aprint_error_dev(&sc->sc_dev, "detect auto increment bug, try again\n"); 2885 goto again; 2886 } 2887 } 2888 #endif 2889 return 0; 2890 } 2891 2892 STATIC int 2893 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 2894 { 2895 int error, len; 2896 struct mbuf *m; 2897 2898 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 2899 if (m->m_len == 0) 2900 continue; 2901 2902 len = min(m->m_len, totlen); 2903 2904 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 2905 m_copydata(m, 0, totlen, (void *)&sc->sc_txbuf); 2906 return wi_write_bap(sc, id, off, (void *)&sc->sc_txbuf, 2907 totlen); 2908 } 2909 2910 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 2911 return error; 2912 2913 off += m->m_len; 2914 totlen -= len; 2915 } 2916 return 0; 2917 } 2918 2919 STATIC int 2920 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 2921 { 2922 int i; 2923 2924 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 2925 aprint_error_dev(&sc->sc_dev, "failed to allocate %d bytes on NIC\n", len); 2926 return ENOMEM; 2927 } 2928 2929 for (i = 0; i < WI_TIMEOUT; i++) { 2930 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 2931 break; 2932 DELAY(1); 2933 } 2934 if (i == WI_TIMEOUT) { 2935 aprint_error_dev(&sc->sc_dev, "timeout in alloc\n"); 2936 return ETIMEDOUT; 2937 } 2938 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 2939 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 2940 return 0; 2941 } 2942 2943 STATIC int 2944 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 2945 { 2946 int error, len; 2947 u_int16_t ltbuf[2]; 2948 2949 /* Tell the NIC to enter record read mode. */ 2950 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 2951 if (error) 2952 return error; 2953 2954 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2955 if (error) 2956 return error; 2957 2958 if (le16toh(ltbuf[0]) == 0) 2959 return EOPNOTSUPP; 2960 if (le16toh(ltbuf[1]) != rid) { 2961 aprint_error_dev(&sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 2962 rid, le16toh(ltbuf[1])); 2963 return EIO; 2964 } 2965 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 2966 if (*buflenp < len) { 2967 aprint_error_dev(&sc->sc_dev, "record buffer is too small, " 2968 "rid=%x, size=%d, len=%d\n", 2969 rid, *buflenp, len); 2970 return ENOSPC; 2971 } 2972 *buflenp = len; 2973 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 2974 } 2975 2976 STATIC int 2977 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 2978 { 2979 int error; 2980 u_int16_t ltbuf[2]; 2981 2982 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 2983 ltbuf[1] = htole16(rid); 2984 2985 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2986 if (error) 2987 return error; 2988 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2989 if (error) 2990 return error; 2991 2992 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2993 } 2994 2995 STATIC void 2996 wi_rssadapt_updatestats_cb(void *arg, struct ieee80211_node *ni) 2997 { 2998 struct wi_node *wn = (void*)ni; 2999 ieee80211_rssadapt_updatestats(&wn->wn_rssadapt); 3000 } 3001 3002 STATIC void 3003 wi_rssadapt_updatestats(void *arg) 3004 { 3005 struct wi_softc *sc = arg; 3006 struct ieee80211com *ic = &sc->sc_ic; 3007 ieee80211_iterate_nodes(&ic->ic_sta, wi_rssadapt_updatestats_cb, arg); 3008 if (ic->ic_opmode != IEEE80211_M_MONITOR && 3009 ic->ic_state == IEEE80211_S_RUN) 3010 callout_reset(&sc->sc_rssadapt_ch, hz / 10, 3011 wi_rssadapt_updatestats, arg); 3012 } 3013 3014 /* 3015 * In HOSTAP mode, restore IEEE80211_F_DROPUNENC when operating 3016 * with WEP enabled so that the AP drops unencoded frames at the 3017 * 802.11 layer. 3018 * 3019 * In all other modes, clear IEEE80211_F_DROPUNENC when operating 3020 * with WEP enabled so we don't drop unencoded frames at the 802.11 3021 * layer. This is necessary because we must strip the WEP bit from 3022 * the 802.11 header before passing frames to ieee80211_input 3023 * because the card has already stripped the WEP crypto header from 3024 * the packet. 3025 */ 3026 STATIC void 3027 wi_mend_flags(struct wi_softc *sc, enum ieee80211_state nstate) 3028 { 3029 struct ieee80211com *ic = &sc->sc_ic; 3030 3031 if (nstate == IEEE80211_S_RUN && 3032 (ic->ic_flags & IEEE80211_F_PRIVACY) != 0 && 3033 ic->ic_opmode != IEEE80211_M_HOSTAP) 3034 ic->ic_flags &= ~IEEE80211_F_DROPUNENC; 3035 else 3036 ic->ic_flags |= sc->sc_ic_flags; 3037 3038 DPRINTF(("%s: state %d, " 3039 "ic->ic_flags & IEEE80211_F_DROPUNENC = %#" PRIx32 ", " 3040 "sc->sc_ic_flags & IEEE80211_F_DROPUNENC = %#" PRIx32 "\n", 3041 __func__, nstate, 3042 ic->ic_flags & IEEE80211_F_DROPUNENC, 3043 sc->sc_ic_flags & IEEE80211_F_DROPUNENC)); 3044 } 3045 3046 STATIC int 3047 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 3048 { 3049 struct ifnet *ifp = ic->ic_ifp; 3050 struct wi_softc *sc = ifp->if_softc; 3051 struct ieee80211_node *ni = ic->ic_bss; 3052 u_int16_t val; 3053 struct wi_ssid ssid; 3054 struct wi_macaddr bssid, old_bssid; 3055 enum ieee80211_state ostate; 3056 #ifdef WI_DEBUG 3057 static const char *stname[] = 3058 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 3059 #endif /* WI_DEBUG */ 3060 3061 ostate = ic->ic_state; 3062 DPRINTF(("wi_newstate: %s -> %s\n", stname[ostate], stname[nstate])); 3063 3064 switch (nstate) { 3065 case IEEE80211_S_INIT: 3066 if (ic->ic_opmode != IEEE80211_M_MONITOR) 3067 callout_stop(&sc->sc_rssadapt_ch); 3068 ic->ic_flags &= ~IEEE80211_F_SIBSS; 3069 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 3070 break; 3071 3072 case IEEE80211_S_SCAN: 3073 case IEEE80211_S_AUTH: 3074 case IEEE80211_S_ASSOC: 3075 ic->ic_state = nstate; /* NB: skip normal ieee80211 handling */ 3076 wi_mend_flags(sc, nstate); 3077 return 0; 3078 3079 case IEEE80211_S_RUN: 3080 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 3081 IEEE80211_ADDR_COPY(old_bssid.wi_mac_addr, ni->ni_bssid); 3082 wi_read_xrid(sc, WI_RID_CURRENT_BSSID, &bssid, 3083 IEEE80211_ADDR_LEN); 3084 IEEE80211_ADDR_COPY(ni->ni_bssid, &bssid); 3085 IEEE80211_ADDR_COPY(ni->ni_macaddr, &bssid); 3086 wi_read_xrid(sc, WI_RID_CURRENT_CHAN, &val, sizeof(val)); 3087 if (!isset(ic->ic_chan_avail, le16toh(val))) 3088 panic("%s: invalid channel %d\n", device_xname(&sc->sc_dev), 3089 le16toh(val)); 3090 ni->ni_chan = &ic->ic_channels[le16toh(val)]; 3091 3092 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 3093 #ifndef IEEE80211_NO_HOSTAP 3094 ni->ni_esslen = ic->ic_des_esslen; 3095 memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); 3096 ni->ni_rates = ic->ic_sup_rates[ 3097 ieee80211_chan2mode(ic, ni->ni_chan)]; 3098 ni->ni_intval = ic->ic_lintval; 3099 ni->ni_capinfo = IEEE80211_CAPINFO_ESS; 3100 if (ic->ic_flags & IEEE80211_F_PRIVACY) 3101 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 3102 #endif /* !IEEE80211_NO_HOSTAP */ 3103 } else { 3104 wi_read_xrid(sc, WI_RID_CURRENT_SSID, &ssid, 3105 sizeof(ssid)); 3106 ni->ni_esslen = le16toh(ssid.wi_len); 3107 if (ni->ni_esslen > IEEE80211_NWID_LEN) 3108 ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/ 3109 memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen); 3110 ni->ni_rates = ic->ic_sup_rates[ 3111 ieee80211_chan2mode(ic, ni->ni_chan)]; /*XXX*/ 3112 } 3113 if (ic->ic_opmode != IEEE80211_M_MONITOR) 3114 callout_reset(&sc->sc_rssadapt_ch, hz / 10, 3115 wi_rssadapt_updatestats, sc); 3116 /* Trigger routing socket messages. XXX Copied from 3117 * ieee80211_newstate. 3118 */ 3119 if (ic->ic_opmode == IEEE80211_M_STA) 3120 ieee80211_notify_node_join(ic, ic->ic_bss, 3121 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 3122 break; 3123 } 3124 wi_mend_flags(sc, nstate); 3125 return (*sc->sc_newstate)(ic, nstate, arg); 3126 } 3127 3128 STATIC void 3129 wi_set_tim(struct ieee80211_node *ni, int set) 3130 { 3131 struct ieee80211com *ic = ni->ni_ic; 3132 struct wi_softc *sc = ic->ic_ifp->if_softc; 3133 3134 (*sc->sc_set_tim)(ni, set); 3135 3136 if ((ic->ic_flags & IEEE80211_F_TIMUPDATE) == 0) 3137 return; 3138 3139 ic->ic_flags &= ~IEEE80211_F_TIMUPDATE; 3140 3141 (void)wi_write_val(sc, WI_RID_SET_TIM, 3142 IEEE80211_AID(ni->ni_associd) | (set ? 0x8000 : 0)); 3143 } 3144 3145 STATIC int 3146 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate) 3147 { 3148 int error = 0; 3149 u_int16_t val[2]; 3150 3151 if (!sc->sc_enabled) 3152 return ENXIO; 3153 switch (sc->sc_firmware_type) { 3154 case WI_LUCENT: 3155 (void)wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0); 3156 break; 3157 case WI_INTERSIL: 3158 val[0] = htole16(chanmask); /* channel */ 3159 val[1] = htole16(txrate); /* tx rate */ 3160 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val)); 3161 break; 3162 case WI_SYMBOL: 3163 /* 3164 * XXX only supported on 3.x ? 3165 */ 3166 val[0] = htole16(BSCAN_BCAST | BSCAN_ONETIME); 3167 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ, 3168 val, sizeof(val[0])); 3169 break; 3170 } 3171 if (error == 0) { 3172 sc->sc_scan_timer = WI_SCAN_WAIT; 3173 sc->sc_if.if_timer = 1; 3174 DPRINTF(("wi_scan_ap: start scanning, " 3175 "chanmask 0x%x txrate 0x%x\n", chanmask, txrate)); 3176 } 3177 return error; 3178 } 3179 3180 STATIC void 3181 wi_scan_result(struct wi_softc *sc, int fid, int cnt) 3182 { 3183 #define N(a) (sizeof (a) / sizeof (a[0])) 3184 int i, naps, off, szbuf; 3185 struct wi_scan_header ws_hdr; /* Prism2 header */ 3186 struct wi_scan_data_p2 ws_dat; /* Prism2 scantable*/ 3187 struct wi_apinfo *ap; 3188 3189 off = sizeof(u_int16_t) * 2; 3190 memset(&ws_hdr, 0, sizeof(ws_hdr)); 3191 switch (sc->sc_firmware_type) { 3192 case WI_INTERSIL: 3193 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr)); 3194 off += sizeof(ws_hdr); 3195 szbuf = sizeof(struct wi_scan_data_p2); 3196 break; 3197 case WI_SYMBOL: 3198 szbuf = sizeof(struct wi_scan_data_p2) + 6; 3199 break; 3200 case WI_LUCENT: 3201 szbuf = sizeof(struct wi_scan_data); 3202 break; 3203 default: 3204 aprint_error_dev(&sc->sc_dev, "wi_scan_result: unknown firmware type %u\n", 3205 sc->sc_firmware_type); 3206 naps = 0; 3207 goto done; 3208 } 3209 naps = (cnt * 2 + 2 - off) / szbuf; 3210 if (naps > N(sc->sc_aps)) 3211 naps = N(sc->sc_aps); 3212 sc->sc_naps = naps; 3213 /* Read Data */ 3214 ap = sc->sc_aps; 3215 memset(&ws_dat, 0, sizeof(ws_dat)); 3216 for (i = 0; i < naps; i++, ap++) { 3217 wi_read_bap(sc, fid, off, &ws_dat, 3218 (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf)); 3219 DPRINTF2(("wi_scan_result: #%d: off %d bssid %s\n", i, off, 3220 ether_sprintf(ws_dat.wi_bssid))); 3221 off += szbuf; 3222 ap->scanreason = le16toh(ws_hdr.wi_reason); 3223 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid)); 3224 ap->channel = le16toh(ws_dat.wi_chid); 3225 ap->signal = le16toh(ws_dat.wi_signal); 3226 ap->noise = le16toh(ws_dat.wi_noise); 3227 ap->quality = ap->signal - ap->noise; 3228 ap->capinfo = le16toh(ws_dat.wi_capinfo); 3229 ap->interval = le16toh(ws_dat.wi_interval); 3230 ap->rate = le16toh(ws_dat.wi_rate); 3231 ap->namelen = le16toh(ws_dat.wi_namelen); 3232 if (ap->namelen > sizeof(ap->name)) 3233 ap->namelen = sizeof(ap->name); 3234 memcpy(ap->name, ws_dat.wi_name, ap->namelen); 3235 } 3236 done: 3237 /* Done scanning */ 3238 sc->sc_scan_timer = 0; 3239 DPRINTF(("wi_scan_result: scan complete: ap %d\n", naps)); 3240 #undef N 3241 } 3242 3243 STATIC void 3244 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi) 3245 { 3246 ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr), 3247 ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL 3248 : -1, 3249 rssi); 3250 printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n", 3251 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1), 3252 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence); 3253 printf(" rx_signal %u rx_rate %u rx_flow %u\n", 3254 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow); 3255 printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n", 3256 wh->wi_tx_rtry, wh->wi_tx_rate, 3257 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len)); 3258 printf(" ehdr dst %s src %s type 0x%x\n", 3259 ether_sprintf(wh->wi_ehdr.ether_dhost), 3260 ether_sprintf(wh->wi_ehdr.ether_shost), 3261 wh->wi_ehdr.ether_type); 3262 } 3263