wi.c revision 1.233
1 /* $NetBSD: wi.c,v 1.233 2010/04/05 07:19:37 joerg 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 (at) 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 (at) 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 1.233 2010/04/05 07:19:37 joerg 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 109 110 111 #include <sys/param.h> 112 #include <sys/sysctl.h> 113 #include <sys/systm.h> 114 #include <sys/callout.h> 115 #include <sys/device.h> 116 #include <sys/socket.h> 117 #include <sys/mbuf.h> 118 #include <sys/ioctl.h> 119 #include <sys/kernel.h> /* for hz */ 120 #include <sys/proc.h> 121 #include <sys/kauth.h> 122 123 #include <net/if.h> 124 #include <net/if_dl.h> 125 #include <net/if_llc.h> 126 #include <net/if_media.h> 127 #include <net/if_ether.h> 128 #include <net/route.h> 129 130 #include <net80211/ieee80211_netbsd.h> 131 #include <net80211/ieee80211_var.h> 132 #include <net80211/ieee80211_ioctl.h> 133 #include <net80211/ieee80211_radiotap.h> 134 #include <net80211/ieee80211_rssadapt.h> 135 136 #include <net/bpf.h> 137 #include <net/bpfdesc.h> 138 139 #include <sys/bus.h> 140 141 #include <dev/ic/wi_ieee.h> 142 #include <dev/ic/wireg.h> 143 #include <dev/ic/wivar.h> 144 145 STATIC int wi_init(struct ifnet *); 146 STATIC void wi_stop(struct ifnet *, int); 147 STATIC void wi_start(struct ifnet *); 148 STATIC int wi_reset(struct wi_softc *); 149 STATIC void wi_watchdog(struct ifnet *); 150 STATIC int wi_ioctl(struct ifnet *, u_long, void *); 151 STATIC int wi_media_change(struct ifnet *); 152 STATIC void wi_media_status(struct ifnet *, struct ifmediareq *); 153 154 STATIC struct ieee80211_node *wi_node_alloc(struct ieee80211_node_table *); 155 STATIC void wi_node_free(struct ieee80211_node *); 156 157 STATIC void wi_raise_rate(struct ieee80211com *, struct ieee80211_rssdesc *); 158 STATIC void wi_lower_rate(struct ieee80211com *, struct ieee80211_rssdesc *); 159 STATIC int wi_choose_rate(struct ieee80211com *, struct ieee80211_node *, 160 struct ieee80211_frame *, u_int); 161 STATIC void wi_rssadapt_updatestats_cb(void *, struct ieee80211_node *); 162 STATIC void wi_rssadapt_updatestats(void *); 163 STATIC void wi_rssdescs_init(struct wi_rssdesc (*)[], wi_rssdescq_t *); 164 STATIC void wi_rssdescs_reset(struct ieee80211com *, struct wi_rssdesc (*)[], 165 wi_rssdescq_t *, u_int8_t (*)[]); 166 STATIC void wi_sync_bssid(struct wi_softc *, u_int8_t new_bssid[]); 167 168 STATIC void wi_rx_intr(struct wi_softc *); 169 STATIC void wi_txalloc_intr(struct wi_softc *); 170 STATIC void wi_cmd_intr(struct wi_softc *); 171 STATIC void wi_tx_intr(struct wi_softc *); 172 STATIC void wi_tx_ex_intr(struct wi_softc *); 173 STATIC void wi_info_intr(struct wi_softc *); 174 175 STATIC int wi_key_delete(struct ieee80211com *, const struct ieee80211_key *); 176 STATIC int wi_key_set(struct ieee80211com *, const struct ieee80211_key *, 177 const u_int8_t[IEEE80211_ADDR_LEN]); 178 STATIC void wi_key_update_begin(struct ieee80211com *); 179 STATIC void wi_key_update_end(struct ieee80211com *); 180 181 STATIC void wi_push_packet(struct wi_softc *); 182 STATIC int wi_get_cfg(struct ifnet *, u_long, void *); 183 STATIC int wi_set_cfg(struct ifnet *, u_long, void *); 184 STATIC int wi_cfg_txrate(struct wi_softc *); 185 STATIC int wi_write_txrate(struct wi_softc *, int); 186 STATIC int wi_write_wep(struct wi_softc *); 187 STATIC int wi_write_multi(struct wi_softc *); 188 STATIC int wi_alloc_fid(struct wi_softc *, int, int *); 189 STATIC void wi_read_nicid(struct wi_softc *); 190 STATIC int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); 191 192 STATIC int wi_cmd(struct wi_softc *, int, int, int, int); 193 STATIC int wi_cmd_start(struct wi_softc *, int, int, int, int); 194 STATIC int wi_cmd_wait(struct wi_softc *, int, int); 195 STATIC int wi_seek_bap(struct wi_softc *, int, int); 196 STATIC int wi_read_bap(struct wi_softc *, int, int, void *, int); 197 STATIC int wi_write_bap(struct wi_softc *, int, int, void *, int); 198 STATIC int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); 199 STATIC int wi_read_rid(struct wi_softc *, int, void *, int *); 200 STATIC int wi_write_rid(struct wi_softc *, int, void *, int); 201 202 STATIC int wi_newstate(struct ieee80211com *, enum ieee80211_state, int); 203 STATIC void wi_set_tim(struct ieee80211_node *, int); 204 205 STATIC int wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t); 206 STATIC void wi_scan_result(struct wi_softc *, int, int); 207 208 STATIC void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi); 209 STATIC void wi_mend_flags(struct wi_softc *, enum ieee80211_state); 210 211 static inline int 212 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) 213 { 214 215 val = htole16(val); 216 return wi_write_rid(sc, rid, &val, sizeof(val)); 217 } 218 219 static struct timeval lasttxerror; /* time of last tx error msg */ 220 static int curtxeps = 0; /* current tx error msgs/sec */ 221 static int wi_txerate = 0; /* tx error rate: max msgs/sec */ 222 223 #ifdef WI_DEBUG 224 #define WI_DEBUG_MAX 2 225 int wi_debug = 0; 226 227 #define DPRINTF(X) if (wi_debug) printf X 228 #define DPRINTF2(X) if (wi_debug > 1) printf X 229 #define IFF_DUMPPKTS(_ifp) \ 230 (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 231 static int wi_sysctl_verify_debug(SYSCTLFN_PROTO); 232 #else 233 #define DPRINTF(X) 234 #define DPRINTF2(X) 235 #define IFF_DUMPPKTS(_ifp) 0 236 #endif 237 238 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO | \ 239 WI_EV_TX | WI_EV_TX_EXC | WI_EV_CMD) 240 241 struct wi_card_ident 242 wi_card_ident[] = { 243 /* CARD_ID CARD_NAME FIRM_TYPE */ 244 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, 245 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, 246 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, 247 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, 248 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, 249 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, 250 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, 251 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, 252 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, 253 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, 254 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, 255 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, 256 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 257 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 258 { WI_NIC_3842_PCMCIA_ATM_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 259 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 260 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 261 { WI_NIC_3842_MINI_ATM_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 262 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 263 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 264 { WI_NIC_3842_PCI_ATM_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 265 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 266 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 267 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 268 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 269 { 0, NULL, 0 }, 270 }; 271 272 #ifndef _MODULE 273 /* 274 * Setup sysctl(3) MIB, hw.wi.* 275 * 276 * TBD condition CTLFLAG_PERMANENT on being a module or not 277 */ 278 SYSCTL_SETUP(sysctl_wi, "sysctl wi(4) subtree setup") 279 { 280 int rc; 281 const struct sysctlnode *rnode; 282 #ifdef WI_DEBUG 283 const struct sysctlnode *cnode; 284 #endif /* WI_DEBUG */ 285 286 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 287 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 288 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 289 goto err; 290 291 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 292 CTLFLAG_PERMANENT, CTLTYPE_NODE, "wi", 293 "Lucent/Prism/Symbol 802.11 controls", 294 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 295 goto err; 296 297 #ifdef WI_DEBUG 298 /* control debugging printfs */ 299 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 300 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 301 "debug", SYSCTL_DESCR("Enable debugging output"), 302 wi_sysctl_verify_debug, 0, &wi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 303 goto err; 304 #endif /* WI_DEBUG */ 305 return; 306 err: 307 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 308 } 309 #endif 310 311 #ifdef WI_DEBUG 312 static int 313 wi_sysctl_verify(SYSCTLFN_ARGS, int lower, int upper) 314 { 315 int error, t; 316 struct sysctlnode node; 317 318 node = *rnode; 319 t = *(int*)rnode->sysctl_data; 320 node.sysctl_data = &t; 321 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 322 if (error || newp == NULL) 323 return (error); 324 325 if (t < lower || t > upper) 326 return (EINVAL); 327 328 *(int*)rnode->sysctl_data = t; 329 330 return (0); 331 } 332 333 static int 334 wi_sysctl_verify_debug(SYSCTLFN_ARGS) 335 { 336 return wi_sysctl_verify(SYSCTLFN_CALL(__UNCONST(rnode)), 337 0, WI_DEBUG_MAX); 338 } 339 #endif /* WI_DEBUG */ 340 341 STATIC int 342 wi_read_xrid(struct wi_softc *sc, int rid, void *buf, int ebuflen) 343 { 344 int buflen, rc; 345 346 buflen = ebuflen; 347 if ((rc = wi_read_rid(sc, rid, buf, &buflen)) != 0) 348 return rc; 349 350 if (buflen < ebuflen) { 351 #ifdef WI_DEBUG 352 printf("%s: rid=%#04x read %d, expected %d\n", __func__, 353 rid, buflen, ebuflen); 354 #endif 355 return -1; 356 } 357 return 0; 358 } 359 360 int 361 wi_attach(struct wi_softc *sc, const u_int8_t *macaddr) 362 { 363 struct ieee80211com *ic = &sc->sc_ic; 364 struct ifnet *ifp = &sc->sc_if; 365 int chan, nrate, buflen; 366 u_int16_t val, chanavail; 367 struct { 368 u_int16_t nrates; 369 char rates[IEEE80211_RATE_SIZE]; 370 } ratebuf; 371 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 372 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 373 }; 374 int s; 375 376 s = splnet(); 377 378 /* Make sure interrupts are disabled. */ 379 CSR_WRITE_2(sc, WI_INT_EN, 0); 380 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 381 382 sc->sc_invalid = 0; 383 384 /* Reset the NIC. */ 385 if (wi_reset(sc) != 0) { 386 sc->sc_invalid = 1; 387 splx(s); 388 return 1; 389 } 390 391 if (wi_read_xrid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, 392 IEEE80211_ADDR_LEN) != 0 || 393 IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) { 394 if (macaddr != NULL) 395 memcpy(ic->ic_myaddr, macaddr, IEEE80211_ADDR_LEN); 396 else { 397 printf(" could not get mac address, attach failed\n"); 398 splx(s); 399 return 1; 400 } 401 } 402 403 printf(" 802.11 address %s\n", ether_sprintf(ic->ic_myaddr)); 404 405 /* Read NIC identification */ 406 wi_read_nicid(sc); 407 408 memcpy(ifp->if_xname, device_xname(&sc->sc_dev), IFNAMSIZ); 409 ifp->if_softc = sc; 410 ifp->if_start = wi_start; 411 ifp->if_ioctl = wi_ioctl; 412 ifp->if_watchdog = wi_watchdog; 413 ifp->if_init = wi_init; 414 ifp->if_stop = wi_stop; 415 ifp->if_flags = 416 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST | IFF_NOTRAILERS; 417 IFQ_SET_READY(&ifp->if_snd); 418 419 ic->ic_ifp = ifp; 420 ic->ic_phytype = IEEE80211_T_DS; 421 ic->ic_opmode = IEEE80211_M_STA; 422 ic->ic_caps = IEEE80211_C_AHDEMO; 423 ic->ic_state = IEEE80211_S_INIT; 424 ic->ic_max_aid = WI_MAX_AID; 425 426 /* Find available channel */ 427 if (wi_read_xrid(sc, WI_RID_CHANNEL_LIST, &chanavail, 428 sizeof(chanavail)) != 0) { 429 aprint_normal_dev(&sc->sc_dev, "using default channel list\n"); 430 chanavail = htole16(0x1fff); /* assume 1-13 */ 431 } 432 for (chan = 16; chan > 0; chan--) { 433 if (!isset((u_int8_t*)&chanavail, chan - 1)) 434 continue; 435 ic->ic_ibss_chan = &ic->ic_channels[chan]; 436 ic->ic_channels[chan].ic_freq = 437 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); 438 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_B; 439 } 440 441 /* Find default IBSS channel */ 442 if (wi_read_xrid(sc, WI_RID_OWN_CHNL, &val, sizeof(val)) == 0) { 443 chan = le16toh(val); 444 if (isset((u_int8_t*)&chanavail, chan - 1)) 445 ic->ic_ibss_chan = &ic->ic_channels[chan]; 446 } 447 if (ic->ic_ibss_chan == NULL) { 448 aprint_error_dev(&sc->sc_dev, "no available channel\n"); 449 return 1; 450 } 451 452 if (sc->sc_firmware_type == WI_LUCENT) { 453 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 454 } else { 455 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 456 wi_read_xrid(sc, WI_RID_DBM_ADJUST, &val, sizeof(val)) == 0) 457 sc->sc_dbm_offset = le16toh(val); 458 else 459 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 460 } 461 462 sc->sc_flags |= WI_FLAGS_RSSADAPTSTA; 463 464 /* 465 * Set flags based on firmware version. 466 */ 467 switch (sc->sc_firmware_type) { 468 case WI_LUCENT: 469 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE; 470 #ifdef WI_HERMES_AUTOINC_WAR 471 /* XXX: not confirmed, but never seen for recent firmware */ 472 if (sc->sc_sta_firmware_ver < 40000) { 473 sc->sc_flags |= WI_FLAGS_BUG_AUTOINC; 474 } 475 #endif 476 if (sc->sc_sta_firmware_ver >= 60000) 477 sc->sc_flags |= WI_FLAGS_HAS_MOR; 478 if (sc->sc_sta_firmware_ver >= 60006) { 479 ic->ic_caps |= IEEE80211_C_IBSS; 480 ic->ic_caps |= IEEE80211_C_MONITOR; 481 } 482 ic->ic_caps |= IEEE80211_C_PMGT; 483 sc->sc_ibss_port = 1; 484 break; 485 486 case WI_INTERSIL: 487 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR; 488 sc->sc_flags |= WI_FLAGS_HAS_ROAMING; 489 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE; 490 if (sc->sc_sta_firmware_ver > 10101) 491 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 492 if (sc->sc_sta_firmware_ver >= 800) { 493 if (sc->sc_sta_firmware_ver != 10402) 494 ic->ic_caps |= IEEE80211_C_HOSTAP; 495 ic->ic_caps |= IEEE80211_C_IBSS; 496 ic->ic_caps |= IEEE80211_C_MONITOR; 497 } 498 ic->ic_caps |= IEEE80211_C_PMGT; 499 sc->sc_ibss_port = 0; 500 sc->sc_alt_retry = 2; 501 break; 502 503 case WI_SYMBOL: 504 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY; 505 if (sc->sc_sta_firmware_ver >= 20000) 506 ic->ic_caps |= IEEE80211_C_IBSS; 507 sc->sc_ibss_port = 4; 508 break; 509 } 510 511 /* 512 * Find out if we support WEP on this card. 513 */ 514 if (wi_read_xrid(sc, WI_RID_WEP_AVAIL, &val, sizeof(val)) == 0 && 515 val != htole16(0)) 516 ic->ic_caps |= IEEE80211_C_WEP; 517 518 /* Find supported rates. */ 519 buflen = sizeof(ratebuf); 520 if (wi_read_rid(sc, WI_RID_DATA_RATES, &ratebuf, &buflen) == 0 && 521 buflen > 2) { 522 nrate = le16toh(ratebuf.nrates); 523 if (nrate > IEEE80211_RATE_SIZE) 524 nrate = IEEE80211_RATE_SIZE; 525 memcpy(ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates, 526 &ratebuf.rates[0], nrate); 527 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates = nrate; 528 } else { 529 aprint_error_dev(&sc->sc_dev, "no supported rate list\n"); 530 return 1; 531 } 532 533 sc->sc_max_datalen = 2304; 534 sc->sc_rts_thresh = 2347; 535 sc->sc_frag_thresh = 2346; 536 sc->sc_system_scale = 1; 537 sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN; 538 sc->sc_roaming_mode = 1; 539 540 callout_init(&sc->sc_rssadapt_ch, 0); 541 542 /* 543 * Call MI attach routines. 544 */ 545 if_attach(ifp); 546 ieee80211_ifattach(ic); 547 548 sc->sc_newstate = ic->ic_newstate; 549 sc->sc_set_tim = ic->ic_set_tim; 550 ic->ic_newstate = wi_newstate; 551 ic->ic_node_alloc = wi_node_alloc; 552 ic->ic_node_free = wi_node_free; 553 ic->ic_set_tim = wi_set_tim; 554 555 ic->ic_crypto.cs_key_delete = wi_key_delete; 556 ic->ic_crypto.cs_key_set = wi_key_set; 557 ic->ic_crypto.cs_key_update_begin = wi_key_update_begin; 558 ic->ic_crypto.cs_key_update_end = wi_key_update_end; 559 560 ieee80211_media_init(ic, wi_media_change, wi_media_status); 561 562 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 563 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 564 565 memset(&sc->sc_rxtapu, 0, sizeof(sc->sc_rxtapu)); 566 sc->sc_rxtap.wr_ihdr.it_len = htole16(sizeof(sc->sc_rxtapu)); 567 sc->sc_rxtap.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT); 568 569 memset(&sc->sc_txtapu, 0, sizeof(sc->sc_txtapu)); 570 sc->sc_txtap.wt_ihdr.it_len = htole16(sizeof(sc->sc_txtapu)); 571 sc->sc_txtap.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT); 572 573 /* Attach is successful. */ 574 sc->sc_attached = 1; 575 576 splx(s); 577 ieee80211_announce(ic); 578 return 0; 579 } 580 581 int 582 wi_detach(struct wi_softc *sc) 583 { 584 struct ifnet *ifp = &sc->sc_if; 585 int s; 586 587 if (!sc->sc_attached) 588 return 0; 589 590 sc->sc_invalid = 1; 591 s = splnet(); 592 593 wi_stop(ifp, 1); 594 595 ieee80211_ifdetach(&sc->sc_ic); 596 if_detach(ifp); 597 splx(s); 598 return 0; 599 } 600 601 int 602 wi_activate(device_t self, enum devact act) 603 { 604 struct wi_softc *sc = device_private(self); 605 606 switch (act) { 607 case DVACT_DEACTIVATE: 608 if_deactivate(&sc->sc_if); 609 return 0; 610 default: 611 return EOPNOTSUPP; 612 } 613 } 614 615 int 616 wi_intr(void *arg) 617 { 618 int i; 619 struct wi_softc *sc = arg; 620 struct ifnet *ifp = &sc->sc_if; 621 u_int16_t status; 622 623 if (sc->sc_enabled == 0 || 624 !device_is_active(&sc->sc_dev) || 625 (ifp->if_flags & IFF_RUNNING) == 0) 626 return 0; 627 628 if ((ifp->if_flags & IFF_UP) == 0) { 629 CSR_WRITE_2(sc, WI_INT_EN, 0); 630 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 631 return 1; 632 } 633 634 /* This is superfluous on Prism, but Lucent breaks if we 635 * do not disable interrupts. 636 */ 637 CSR_WRITE_2(sc, WI_INT_EN, 0); 638 639 /* maximum 10 loops per interrupt */ 640 for (i = 0; i < 10; i++) { 641 status = CSR_READ_2(sc, WI_EVENT_STAT); 642 #ifdef WI_DEBUG 643 if (wi_debug > 1) { 644 printf("%s: iter %d status %#04x\n", __func__, i, 645 status); 646 } 647 #endif /* WI_DEBUG */ 648 if ((status & WI_INTRS) == 0) 649 break; 650 651 sc->sc_status = status; 652 653 if (status & WI_EV_RX) 654 wi_rx_intr(sc); 655 656 if (status & WI_EV_ALLOC) 657 wi_txalloc_intr(sc); 658 659 if (status & WI_EV_TX) 660 wi_tx_intr(sc); 661 662 if (status & WI_EV_TX_EXC) 663 wi_tx_ex_intr(sc); 664 665 if (status & WI_EV_INFO) 666 wi_info_intr(sc); 667 668 CSR_WRITE_2(sc, WI_EVENT_ACK, sc->sc_status); 669 670 if (sc->sc_status & WI_EV_CMD) 671 wi_cmd_intr(sc); 672 673 if ((ifp->if_flags & IFF_OACTIVE) == 0 && 674 (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 && 675 !IFQ_IS_EMPTY(&ifp->if_snd)) 676 wi_start(ifp); 677 678 sc->sc_status = 0; 679 } 680 681 /* re-enable interrupts */ 682 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 683 684 sc->sc_status = 0; 685 686 return 1; 687 } 688 689 #define arraylen(a) (sizeof(a) / sizeof((a)[0])) 690 691 STATIC void 692 wi_rssdescs_init(struct wi_rssdesc (*rssd)[WI_NTXRSS], wi_rssdescq_t *rssdfree) 693 { 694 int i; 695 SLIST_INIT(rssdfree); 696 for (i = 0; i < arraylen(*rssd); i++) { 697 SLIST_INSERT_HEAD(rssdfree, &(*rssd)[i], rd_next); 698 } 699 } 700 701 STATIC void 702 wi_rssdescs_reset(struct ieee80211com *ic, struct wi_rssdesc (*rssd)[WI_NTXRSS], 703 wi_rssdescq_t *rssdfree, u_int8_t (*txpending)[IEEE80211_RATE_MAXSIZE]) 704 { 705 struct ieee80211_node *ni; 706 int i; 707 for (i = 0; i < arraylen(*rssd); i++) { 708 ni = (*rssd)[i].rd_desc.id_node; 709 (*rssd)[i].rd_desc.id_node = NULL; 710 if (ni != NULL && (ic->ic_ifp->if_flags & IFF_DEBUG) != 0) 711 printf("%s: cleaning outstanding rssadapt " 712 "descriptor for %s\n", 713 ic->ic_ifp->if_xname, ether_sprintf(ni->ni_macaddr)); 714 if (ni != NULL) 715 ieee80211_free_node(ni); 716 } 717 memset(*txpending, 0, sizeof(*txpending)); 718 wi_rssdescs_init(rssd, rssdfree); 719 } 720 721 STATIC int 722 wi_init(struct ifnet *ifp) 723 { 724 struct wi_softc *sc = ifp->if_softc; 725 struct ieee80211com *ic = &sc->sc_ic; 726 struct wi_joinreq join; 727 int i; 728 int error = 0, wasenabled; 729 730 DPRINTF(("wi_init: enabled %d\n", sc->sc_enabled)); 731 wasenabled = sc->sc_enabled; 732 if (!sc->sc_enabled) { 733 if ((error = (*sc->sc_enable)(sc)) != 0) 734 goto out; 735 sc->sc_enabled = 1; 736 } else 737 wi_stop(ifp, 0); 738 739 /* Symbol firmware cannot be initialized more than once */ 740 if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) 741 if ((error = wi_reset(sc)) != 0) 742 goto out; 743 744 /* common 802.11 configuration */ 745 ic->ic_flags &= ~IEEE80211_F_IBSSON; 746 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 747 switch (ic->ic_opmode) { 748 case IEEE80211_M_STA: 749 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS); 750 break; 751 case IEEE80211_M_IBSS: 752 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port); 753 ic->ic_flags |= IEEE80211_F_IBSSON; 754 break; 755 case IEEE80211_M_AHDEMO: 756 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC); 757 break; 758 case IEEE80211_M_HOSTAP: 759 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP); 760 break; 761 case IEEE80211_M_MONITOR: 762 if (sc->sc_firmware_type == WI_LUCENT) 763 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC); 764 wi_cmd(sc, WI_CMD_TEST | (WI_TEST_MONITOR << 8), 0, 0, 0); 765 break; 766 } 767 768 /* Intersil interprets this RID as joining ESS even in IBSS mode */ 769 if (sc->sc_firmware_type == WI_LUCENT && 770 (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0) 771 wi_write_val(sc, WI_RID_CREATE_IBSS, 1); 772 else 773 wi_write_val(sc, WI_RID_CREATE_IBSS, 0); 774 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 775 wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid, 776 ic->ic_des_esslen); 777 wi_write_val(sc, WI_RID_OWN_CHNL, 778 ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 779 wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen); 780 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 781 wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN); 782 if (ic->ic_caps & IEEE80211_C_PMGT) 783 wi_write_val(sc, WI_RID_PM_ENABLED, 784 (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0); 785 786 /* not yet common 802.11 configuration */ 787 wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen); 788 wi_write_val(sc, WI_RID_RTS_THRESH, sc->sc_rts_thresh); 789 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 790 wi_write_val(sc, WI_RID_FRAG_THRESH, sc->sc_frag_thresh); 791 792 /* driver specific 802.11 configuration */ 793 if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) 794 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale); 795 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 796 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode); 797 if (sc->sc_flags & WI_FLAGS_HAS_MOR) 798 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven); 799 wi_cfg_txrate(sc); 800 wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen); 801 802 #ifndef IEEE80211_NO_HOSTAP 803 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 804 sc->sc_firmware_type == WI_INTERSIL) { 805 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_lintval); 806 wi_write_val(sc, WI_RID_DTIM_PERIOD, 1); 807 } 808 #endif /* !IEEE80211_NO_HOSTAP */ 809 810 if (sc->sc_firmware_type == WI_INTERSIL) { 811 struct ieee80211_rateset *rs = 812 &ic->ic_sup_rates[IEEE80211_MODE_11B]; 813 u_int16_t basic = 0, supported = 0, rate; 814 815 for (i = 0; i < rs->rs_nrates; i++) { 816 switch (rs->rs_rates[i] & IEEE80211_RATE_VAL) { 817 case 2: 818 rate = 1; 819 break; 820 case 4: 821 rate = 2; 822 break; 823 case 11: 824 rate = 4; 825 break; 826 case 22: 827 rate = 8; 828 break; 829 default: 830 rate = 0; 831 break; 832 } 833 if (rs->rs_rates[i] & IEEE80211_RATE_BASIC) 834 basic |= rate; 835 supported |= rate; 836 } 837 wi_write_val(sc, WI_RID_BASIC_RATE, basic); 838 wi_write_val(sc, WI_RID_SUPPORT_RATE, supported); 839 wi_write_val(sc, WI_RID_ALT_RETRY_COUNT, sc->sc_alt_retry); 840 } 841 842 /* 843 * Initialize promisc mode. 844 * Being in Host-AP mode causes a great 845 * deal of pain if promiscuous mode is set. 846 * Therefore we avoid confusing the firmware 847 * and always reset promisc mode in Host-AP 848 * mode. Host-AP sees all the packets anyway. 849 */ 850 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 851 (ifp->if_flags & IFF_PROMISC) != 0) { 852 wi_write_val(sc, WI_RID_PROMISC, 1); 853 } else { 854 wi_write_val(sc, WI_RID_PROMISC, 0); 855 } 856 857 /* Configure WEP. */ 858 if (ic->ic_caps & IEEE80211_C_WEP) { 859 sc->sc_cnfauthmode = ic->ic_bss->ni_authmode; 860 wi_write_wep(sc); 861 } 862 863 /* Set multicast filter. */ 864 wi_write_multi(sc); 865 866 sc->sc_txalloc = 0; 867 sc->sc_txalloced = 0; 868 sc->sc_txqueue = 0; 869 sc->sc_txqueued = 0; 870 sc->sc_txstart = 0; 871 sc->sc_txstarted = 0; 872 873 if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) { 874 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 875 if (sc->sc_firmware_type == WI_SYMBOL) 876 sc->sc_buflen = 1585; /* XXX */ 877 for (i = 0; i < WI_NTXBUF; i++) { 878 error = wi_alloc_fid(sc, sc->sc_buflen, 879 &sc->sc_txd[i].d_fid); 880 if (error) { 881 aprint_error_dev(&sc->sc_dev, "tx buffer allocation failed\n"); 882 goto out; 883 } 884 DPRINTF2(("wi_init: txbuf %d allocated %x\n", i, 885 sc->sc_txd[i].d_fid)); 886 ++sc->sc_txalloced; 887 } 888 } 889 890 wi_rssdescs_init(&sc->sc_rssd, &sc->sc_rssdfree); 891 892 /* Enable desired port */ 893 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 894 ifp->if_flags |= IFF_RUNNING; 895 ifp->if_flags &= ~IFF_OACTIVE; 896 ic->ic_state = IEEE80211_S_INIT; 897 898 if (ic->ic_opmode == IEEE80211_M_AHDEMO || 899 ic->ic_opmode == IEEE80211_M_IBSS || 900 ic->ic_opmode == IEEE80211_M_MONITOR || 901 ic->ic_opmode == IEEE80211_M_HOSTAP) 902 ieee80211_create_ibss(ic, ic->ic_ibss_chan); 903 904 /* Enable interrupts */ 905 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 906 907 #ifndef IEEE80211_NO_HOSTAP 908 if (!wasenabled && 909 ic->ic_opmode == IEEE80211_M_HOSTAP && 910 sc->sc_firmware_type == WI_INTERSIL) { 911 /* XXX: some card need to be re-enabled for hostap */ 912 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 913 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 914 } 915 #endif /* !IEEE80211_NO_HOSTAP */ 916 917 if (ic->ic_opmode == IEEE80211_M_STA && 918 ((ic->ic_flags & IEEE80211_F_DESBSSID) || 919 ic->ic_des_chan != IEEE80211_CHAN_ANYC)) { 920 memset(&join, 0, sizeof(join)); 921 if (ic->ic_flags & IEEE80211_F_DESBSSID) 922 IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid); 923 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC) 924 join.wi_chan = 925 htole16(ieee80211_chan2ieee(ic, ic->ic_des_chan)); 926 /* Lucent firmware does not support the JOIN RID. */ 927 if (sc->sc_firmware_type != WI_LUCENT) 928 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 929 } 930 931 out: 932 if (error) { 933 printf("%s: interface not running\n", device_xname(&sc->sc_dev)); 934 wi_stop(ifp, 0); 935 } 936 DPRINTF(("wi_init: return %d\n", error)); 937 return error; 938 } 939 940 STATIC void 941 wi_txcmd_wait(struct wi_softc *sc) 942 { 943 KASSERT(sc->sc_txcmds == 1); 944 if (sc->sc_status & WI_EV_CMD) { 945 sc->sc_status &= ~WI_EV_CMD; 946 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 947 } else 948 (void)wi_cmd_wait(sc, WI_CMD_TX | WI_RECLAIM, 0); 949 } 950 951 STATIC void 952 wi_stop(struct ifnet *ifp, int disable) 953 { 954 struct wi_softc *sc = ifp->if_softc; 955 struct ieee80211com *ic = &sc->sc_ic; 956 int s; 957 958 if (!sc->sc_enabled) 959 return; 960 961 s = splnet(); 962 963 DPRINTF(("wi_stop: disable %d\n", disable)); 964 965 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 966 967 /* wait for tx command completion (deassoc, deauth) */ 968 while (sc->sc_txcmds > 0) { 969 wi_txcmd_wait(sc); 970 wi_cmd_intr(sc); 971 } 972 973 /* TBD wait for deassoc, deauth tx completion? */ 974 975 if (!sc->sc_invalid) { 976 CSR_WRITE_2(sc, WI_INT_EN, 0); 977 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 978 } 979 980 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 981 &sc->sc_txpending); 982 983 sc->sc_tx_timer = 0; 984 sc->sc_scan_timer = 0; 985 sc->sc_false_syns = 0; 986 sc->sc_naps = 0; 987 ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING); 988 ifp->if_timer = 0; 989 990 if (disable) { 991 if (sc->sc_disable) 992 (*sc->sc_disable)(sc); 993 sc->sc_enabled = 0; 994 } 995 splx(s); 996 } 997 998 /* 999 * Choose a data rate for a packet len bytes long that suits the packet 1000 * type and the wireless conditions. 1001 * 1002 * TBD Adapt fragmentation threshold. 1003 */ 1004 STATIC int 1005 wi_choose_rate(struct ieee80211com *ic, struct ieee80211_node *ni, 1006 struct ieee80211_frame *wh, u_int len) 1007 { 1008 struct wi_softc *sc = ic->ic_ifp->if_softc; 1009 struct wi_node *wn = (void*)ni; 1010 struct ieee80211_rssadapt *ra = &wn->wn_rssadapt; 1011 int do_not_adapt, i, rateidx, s; 1012 1013 do_not_adapt = (ic->ic_opmode != IEEE80211_M_HOSTAP) && 1014 (sc->sc_flags & WI_FLAGS_RSSADAPTSTA) == 0; 1015 1016 s = splnet(); 1017 1018 rateidx = ieee80211_rssadapt_choose(ra, &ni->ni_rates, wh, len, 1019 ic->ic_fixed_rate, 1020 ((ic->ic_ifp->if_flags & IFF_DEBUG) == 0) ? NULL : ic->ic_ifp->if_xname, 1021 do_not_adapt); 1022 1023 ni->ni_txrate = rateidx; 1024 1025 if (ic->ic_opmode != IEEE80211_M_HOSTAP) { 1026 /* choose the slowest pending rate so that we don't 1027 * accidentally send a packet on the MAC's queue 1028 * too fast. TBD find out if the MAC labels Tx 1029 * packets w/ rate when enqueued or dequeued. 1030 */ 1031 for (i = 0; i < rateidx && sc->sc_txpending[i] == 0; i++); 1032 rateidx = i; 1033 } 1034 1035 splx(s); 1036 return (rateidx); 1037 } 1038 1039 STATIC void 1040 wi_raise_rate(struct ieee80211com *ic, struct ieee80211_rssdesc *id) 1041 { 1042 struct wi_node *wn; 1043 if (id->id_node == NULL) 1044 return; 1045 1046 wn = (void*)id->id_node; 1047 ieee80211_rssadapt_raise_rate(ic, &wn->wn_rssadapt, id); 1048 } 1049 1050 STATIC void 1051 wi_lower_rate(struct ieee80211com *ic, struct ieee80211_rssdesc *id) 1052 { 1053 struct ieee80211_node *ni; 1054 struct wi_node *wn; 1055 int s; 1056 1057 s = splnet(); 1058 1059 if ((ni = id->id_node) == NULL) { 1060 DPRINTF(("wi_lower_rate: missing node\n")); 1061 goto out; 1062 } 1063 1064 wn = (void *)ni; 1065 1066 ieee80211_rssadapt_lower_rate(ic, ni, &wn->wn_rssadapt, id); 1067 out: 1068 splx(s); 1069 return; 1070 } 1071 1072 STATIC void 1073 wi_start(struct ifnet *ifp) 1074 { 1075 struct wi_softc *sc = ifp->if_softc; 1076 struct ieee80211com *ic = &sc->sc_ic; 1077 struct ether_header *eh; 1078 struct ieee80211_node *ni; 1079 struct ieee80211_frame *wh; 1080 struct ieee80211_rateset *rs; 1081 struct wi_rssdesc *rd; 1082 struct ieee80211_rssdesc *id; 1083 struct mbuf *m0; 1084 struct wi_frame frmhdr; 1085 int cur, fid, off, rateidx; 1086 1087 if (!sc->sc_enabled || sc->sc_invalid) 1088 return; 1089 if (sc->sc_flags & WI_FLAGS_OUTRANGE) 1090 return; 1091 1092 memset(&frmhdr, 0, sizeof(frmhdr)); 1093 cur = sc->sc_txqueue; 1094 for (;;) { 1095 ni = ic->ic_bss; 1096 if (sc->sc_txalloced == 0 || SLIST_EMPTY(&sc->sc_rssdfree)) { 1097 ifp->if_flags |= IFF_OACTIVE; 1098 break; 1099 } 1100 if (!IF_IS_EMPTY(&ic->ic_mgtq)) { 1101 IF_DEQUEUE(&ic->ic_mgtq, m0); 1102 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1103 (void *)&frmhdr.wi_ehdr); 1104 frmhdr.wi_ehdr.ether_type = 0; 1105 wh = mtod(m0, struct ieee80211_frame *); 1106 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; 1107 m0->m_pkthdr.rcvif = NULL; 1108 } else if (ic->ic_state == IEEE80211_S_RUN) { 1109 IFQ_POLL(&ifp->if_snd, m0); 1110 if (m0 == NULL) 1111 break; 1112 IFQ_DEQUEUE(&ifp->if_snd, m0); 1113 ifp->if_opackets++; 1114 m_copydata(m0, 0, ETHER_HDR_LEN, 1115 (void *)&frmhdr.wi_ehdr); 1116 bpf_mtap(ifp, m0); 1117 1118 eh = mtod(m0, struct ether_header *); 1119 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1120 if (ni == NULL) { 1121 ifp->if_oerrors++; 1122 continue; 1123 } 1124 if ((ni->ni_flags & IEEE80211_NODE_PWR_MGT) && 1125 (m0->m_flags & M_PWR_SAV) == 0) { 1126 ieee80211_pwrsave(ic, ni, m0); 1127 goto next; 1128 } 1129 if ((m0 = ieee80211_encap(ic, m0, ni)) == NULL) { 1130 ieee80211_free_node(ni); 1131 ifp->if_oerrors++; 1132 continue; 1133 } 1134 wh = mtod(m0, struct ieee80211_frame *); 1135 } else 1136 break; 1137 bpf_mtap3(ic->ic_rawbpf, m0); 1138 frmhdr.wi_tx_ctl = 1139 htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX|WI_TXCNTL_TX_OK); 1140 #ifndef IEEE80211_NO_HOSTAP 1141 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 1142 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1143 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 1144 (wh->i_fc[1] & IEEE80211_FC1_WEP)) { 1145 if (ieee80211_crypto_encap(ic, ni, m0) == NULL) { 1146 m_freem(m0); 1147 ifp->if_oerrors++; 1148 goto next; 1149 } 1150 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1151 } 1152 #endif /* !IEEE80211_NO_HOSTAP */ 1153 1154 rateidx = wi_choose_rate(ic, ni, wh, m0->m_pkthdr.len); 1155 rs = &ni->ni_rates; 1156 1157 if (sc->sc_drvbpf) { 1158 struct wi_tx_radiotap_header *tap = &sc->sc_txtap; 1159 1160 tap->wt_rate = rs->rs_rates[rateidx]; 1161 tap->wt_chan_freq = 1162 htole16(ic->ic_bss->ni_chan->ic_freq); 1163 tap->wt_chan_flags = 1164 htole16(ic->ic_bss->ni_chan->ic_flags); 1165 /* TBD tap->wt_flags */ 1166 1167 bpf_mtap2(sc->sc_drvbpf, tap, tap->wt_ihdr.it_len, m0); 1168 } 1169 1170 rd = SLIST_FIRST(&sc->sc_rssdfree); 1171 id = &rd->rd_desc; 1172 id->id_len = m0->m_pkthdr.len; 1173 id->id_rateidx = ni->ni_txrate; 1174 id->id_rssi = ni->ni_rssi; 1175 1176 frmhdr.wi_tx_idx = rd - sc->sc_rssd; 1177 1178 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 1179 frmhdr.wi_tx_rate = 5 * (rs->rs_rates[rateidx] & 1180 IEEE80211_RATE_VAL); 1181 else if (sc->sc_flags & WI_FLAGS_RSSADAPTSTA) 1182 (void)wi_write_txrate(sc, rs->rs_rates[rateidx]); 1183 1184 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1185 (void *)&frmhdr.wi_whdr); 1186 m_adj(m0, sizeof(struct ieee80211_frame)); 1187 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1188 if (IFF_DUMPPKTS(ifp)) 1189 wi_dump_pkt(&frmhdr, ni, -1); 1190 fid = sc->sc_txd[cur].d_fid; 1191 off = sizeof(frmhdr); 1192 if (wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0 || 1193 wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0) { 1194 aprint_error_dev(&sc->sc_dev, "%s write fid %x failed\n", 1195 __func__, fid); 1196 ifp->if_oerrors++; 1197 m_freem(m0); 1198 goto next; 1199 } 1200 m_freem(m0); 1201 sc->sc_txpending[ni->ni_txrate]++; 1202 --sc->sc_txalloced; 1203 if (sc->sc_txqueued++ == 0) { 1204 #ifdef DIAGNOSTIC 1205 if (cur != sc->sc_txstart) 1206 printf("%s: ring is desynchronized\n", 1207 device_xname(&sc->sc_dev)); 1208 #endif 1209 wi_push_packet(sc); 1210 } else { 1211 #ifdef WI_RING_DEBUG 1212 printf("%s: queue %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1213 device_xname(&sc->sc_dev), fid, 1214 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1215 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1216 #endif 1217 } 1218 sc->sc_txqueue = cur = (cur + 1) % WI_NTXBUF; 1219 SLIST_REMOVE_HEAD(&sc->sc_rssdfree, rd_next); 1220 id->id_node = ni; 1221 continue; 1222 next: 1223 if (ni != NULL) 1224 ieee80211_free_node(ni); 1225 } 1226 } 1227 1228 1229 STATIC int 1230 wi_reset(struct wi_softc *sc) 1231 { 1232 int i, error; 1233 1234 DPRINTF(("wi_reset\n")); 1235 1236 if (sc->sc_reset) 1237 (*sc->sc_reset)(sc); 1238 1239 error = 0; 1240 for (i = 0; i < 5; i++) { 1241 if (sc->sc_invalid) 1242 return ENXIO; 1243 DELAY(20*1000); /* XXX: way too long! */ 1244 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0) 1245 break; 1246 } 1247 if (error) { 1248 aprint_error_dev(&sc->sc_dev, "init failed\n"); 1249 return error; 1250 } 1251 CSR_WRITE_2(sc, WI_INT_EN, 0); 1252 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 1253 1254 /* Calibrate timer. */ 1255 wi_write_val(sc, WI_RID_TICK_TIME, 0); 1256 return 0; 1257 } 1258 1259 STATIC void 1260 wi_watchdog(struct ifnet *ifp) 1261 { 1262 struct wi_softc *sc = ifp->if_softc; 1263 1264 ifp->if_timer = 0; 1265 if (!sc->sc_enabled) 1266 return; 1267 1268 if (sc->sc_tx_timer) { 1269 if (--sc->sc_tx_timer == 0) { 1270 printf("%s: device timeout\n", ifp->if_xname); 1271 ifp->if_oerrors++; 1272 wi_init(ifp); 1273 return; 1274 } 1275 ifp->if_timer = 1; 1276 } 1277 1278 if (sc->sc_scan_timer) { 1279 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT && 1280 sc->sc_firmware_type == WI_INTERSIL) { 1281 DPRINTF(("wi_watchdog: inquire scan\n")); 1282 wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0); 1283 } 1284 if (sc->sc_scan_timer) 1285 ifp->if_timer = 1; 1286 } 1287 1288 /* TODO: rate control */ 1289 ieee80211_watchdog(&sc->sc_ic); 1290 } 1291 1292 STATIC int 1293 wi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1294 { 1295 struct wi_softc *sc = ifp->if_softc; 1296 struct ieee80211com *ic = &sc->sc_ic; 1297 struct ifreq *ifr = (struct ifreq *)data; 1298 int s, error = 0; 1299 1300 if (!device_is_active(&sc->sc_dev)) 1301 return ENXIO; 1302 1303 s = splnet(); 1304 1305 switch (cmd) { 1306 case SIOCSIFFLAGS: 1307 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1308 break; 1309 /* 1310 * Can't do promisc and hostap at the same time. If all that's 1311 * changing is the promisc flag, try to short-circuit a call to 1312 * wi_init() by just setting PROMISC in the hardware. 1313 */ 1314 if (ifp->if_flags & IFF_UP) { 1315 if (sc->sc_enabled) { 1316 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1317 (ifp->if_flags & IFF_PROMISC) != 0) 1318 wi_write_val(sc, WI_RID_PROMISC, 1); 1319 else 1320 wi_write_val(sc, WI_RID_PROMISC, 0); 1321 } else 1322 error = wi_init(ifp); 1323 } else if (sc->sc_enabled) 1324 wi_stop(ifp, 1); 1325 break; 1326 case SIOCSIFMEDIA: 1327 case SIOCGIFMEDIA: 1328 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1329 break; 1330 case SIOCADDMULTI: 1331 case SIOCDELMULTI: 1332 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1333 if (ifp->if_flags & IFF_RUNNING) { 1334 /* do not rescan */ 1335 error = wi_write_multi(sc); 1336 } else 1337 error = 0; 1338 } 1339 break; 1340 case SIOCGIFGENERIC: 1341 error = wi_get_cfg(ifp, cmd, data); 1342 break; 1343 case SIOCSIFGENERIC: 1344 error = kauth_authorize_network(curlwp->l_cred, 1345 KAUTH_NETWORK_INTERFACE, 1346 KAUTH_REQ_NETWORK_INTERFACE_SETPRIV, ifp, KAUTH_ARG(cmd), 1347 NULL); 1348 if (error) 1349 break; 1350 error = wi_set_cfg(ifp, cmd, data); 1351 if (error == ENETRESET) { 1352 if (ifp->if_flags & IFF_RUNNING) 1353 error = wi_init(ifp); 1354 else 1355 error = 0; 1356 } 1357 break; 1358 case SIOCS80211BSSID: 1359 if (sc->sc_firmware_type == WI_LUCENT) { 1360 error = ENODEV; 1361 break; 1362 } 1363 /* fall through */ 1364 default: 1365 ic->ic_flags |= sc->sc_ic_flags; 1366 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1367 sc->sc_ic_flags = ic->ic_flags & IEEE80211_F_DROPUNENC; 1368 if (error == ENETRESET) { 1369 if (sc->sc_enabled) 1370 error = wi_init(ifp); 1371 else 1372 error = 0; 1373 } 1374 break; 1375 } 1376 wi_mend_flags(sc, ic->ic_state); 1377 splx(s); 1378 return error; 1379 } 1380 1381 STATIC int 1382 wi_media_change(struct ifnet *ifp) 1383 { 1384 struct wi_softc *sc = ifp->if_softc; 1385 struct ieee80211com *ic = &sc->sc_ic; 1386 int error; 1387 1388 error = ieee80211_media_change(ifp); 1389 if (error == ENETRESET) { 1390 if (sc->sc_enabled) 1391 error = wi_init(ifp); 1392 else 1393 error = 0; 1394 } 1395 ifp->if_baudrate = ifmedia_baudrate(ic->ic_media.ifm_cur->ifm_media); 1396 1397 return error; 1398 } 1399 1400 STATIC void 1401 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1402 { 1403 struct wi_softc *sc = ifp->if_softc; 1404 struct ieee80211com *ic = &sc->sc_ic; 1405 u_int16_t val; 1406 int rate; 1407 1408 if (sc->sc_enabled == 0) { 1409 imr->ifm_active = IFM_IEEE80211 | IFM_NONE; 1410 imr->ifm_status = 0; 1411 return; 1412 } 1413 1414 imr->ifm_status = IFM_AVALID; 1415 imr->ifm_active = IFM_IEEE80211; 1416 if (ic->ic_state == IEEE80211_S_RUN && 1417 (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0) 1418 imr->ifm_status |= IFM_ACTIVE; 1419 if (wi_read_xrid(sc, WI_RID_CUR_TX_RATE, &val, sizeof(val)) == 0) { 1420 /* convert to 802.11 rate */ 1421 val = le16toh(val); 1422 rate = val * 2; 1423 if (sc->sc_firmware_type == WI_LUCENT) { 1424 if (rate == 10) 1425 rate = 11; /* 5.5Mbps */ 1426 } else { 1427 if (rate == 4*2) 1428 rate = 11; /* 5.5Mbps */ 1429 else if (rate == 8*2) 1430 rate = 22; /* 11Mbps */ 1431 } 1432 } else 1433 rate = 0; 1434 imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 1435 switch (ic->ic_opmode) { 1436 case IEEE80211_M_STA: 1437 break; 1438 case IEEE80211_M_IBSS: 1439 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1440 break; 1441 case IEEE80211_M_AHDEMO: 1442 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 1443 break; 1444 case IEEE80211_M_HOSTAP: 1445 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1446 break; 1447 case IEEE80211_M_MONITOR: 1448 imr->ifm_active |= IFM_IEEE80211_MONITOR; 1449 break; 1450 } 1451 } 1452 1453 STATIC struct ieee80211_node * 1454 wi_node_alloc(struct ieee80211_node_table *nt) 1455 { 1456 struct wi_node *wn = 1457 malloc(sizeof(struct wi_node), M_DEVBUF, M_NOWAIT | M_ZERO); 1458 return wn ? &wn->wn_node : NULL; 1459 } 1460 1461 STATIC void 1462 wi_node_free(struct ieee80211_node *ni) 1463 { 1464 struct wi_softc *sc = ni->ni_ic->ic_ifp->if_softc; 1465 int i; 1466 1467 for (i = 0; i < WI_NTXRSS; i++) { 1468 if (sc->sc_rssd[i].rd_desc.id_node == ni) 1469 sc->sc_rssd[i].rd_desc.id_node = NULL; 1470 } 1471 free(ni, M_DEVBUF); 1472 } 1473 1474 STATIC void 1475 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1476 { 1477 struct ieee80211com *ic = &sc->sc_ic; 1478 struct ieee80211_node *ni = ic->ic_bss; 1479 struct ifnet *ifp = &sc->sc_if; 1480 1481 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1482 return; 1483 1484 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid))); 1485 DPRINTF(("%s ?\n", ether_sprintf(new_bssid))); 1486 1487 /* In promiscuous mode, the BSSID field is not a reliable 1488 * indicator of the firmware's BSSID. Damp spurious 1489 * change-of-BSSID indications. 1490 */ 1491 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1492 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1493 WI_MAX_FALSE_SYNS)) 1494 return; 1495 1496 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1497 /* 1498 * XXX hack; we should create a new node with the new bssid 1499 * and replace the existing ic_bss with it but since we don't 1500 * process management frames to collect state we cheat by 1501 * reusing the existing node as we know wi_newstate will be 1502 * called and it will overwrite the node state. 1503 */ 1504 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1505 } 1506 1507 static inline void 1508 wi_rssadapt_input(struct ieee80211com *ic, struct ieee80211_node *ni, 1509 struct ieee80211_frame *wh, int rssi) 1510 { 1511 struct wi_node *wn; 1512 1513 if (ni == NULL) { 1514 printf("%s: null node", __func__); 1515 return; 1516 } 1517 1518 wn = (void*)ni; 1519 ieee80211_rssadapt_input(ic, ni, &wn->wn_rssadapt, rssi); 1520 } 1521 1522 STATIC void 1523 wi_rx_intr(struct wi_softc *sc) 1524 { 1525 struct ieee80211com *ic = &sc->sc_ic; 1526 struct ifnet *ifp = &sc->sc_if; 1527 struct ieee80211_node *ni; 1528 struct wi_frame frmhdr; 1529 struct mbuf *m; 1530 struct ieee80211_frame *wh; 1531 int fid, len, off, rssi; 1532 u_int8_t dir; 1533 u_int16_t status; 1534 u_int32_t rstamp; 1535 1536 fid = CSR_READ_2(sc, WI_RX_FID); 1537 1538 /* First read in the frame header */ 1539 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1540 aprint_error_dev(&sc->sc_dev, "%s read fid %x failed\n", 1541 __func__, fid); 1542 ifp->if_ierrors++; 1543 return; 1544 } 1545 1546 if (IFF_DUMPPKTS(ifp)) 1547 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal); 1548 1549 /* 1550 * Drop undecryptable or packets with receive errors here 1551 */ 1552 status = le16toh(frmhdr.wi_status); 1553 if ((status & WI_STAT_ERRSTAT) != 0 && 1554 ic->ic_opmode != IEEE80211_M_MONITOR) { 1555 ifp->if_ierrors++; 1556 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1557 return; 1558 } 1559 rssi = frmhdr.wi_rx_signal; 1560 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1561 le16toh(frmhdr.wi_rx_tstamp1); 1562 1563 len = le16toh(frmhdr.wi_dat_len); 1564 off = ALIGN(sizeof(struct ieee80211_frame)); 1565 1566 /* Sometimes the PRISM2.x returns bogusly large frames. Except 1567 * in monitor mode, just throw them away. 1568 */ 1569 if (off + len > MCLBYTES) { 1570 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1571 ifp->if_ierrors++; 1572 DPRINTF(("wi_rx_intr: oversized packet\n")); 1573 return; 1574 } else 1575 len = 0; 1576 } 1577 1578 MGETHDR(m, M_DONTWAIT, MT_DATA); 1579 if (m == NULL) { 1580 ifp->if_ierrors++; 1581 DPRINTF(("wi_rx_intr: MGET failed\n")); 1582 return; 1583 } 1584 if (off + len > MHLEN) { 1585 MCLGET(m, M_DONTWAIT); 1586 if ((m->m_flags & M_EXT) == 0) { 1587 m_freem(m); 1588 ifp->if_ierrors++; 1589 DPRINTF(("wi_rx_intr: MCLGET failed\n")); 1590 return; 1591 } 1592 } 1593 1594 m->m_data += off - sizeof(struct ieee80211_frame); 1595 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1596 wi_read_bap(sc, fid, sizeof(frmhdr), 1597 m->m_data + sizeof(struct ieee80211_frame), len); 1598 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1599 m->m_pkthdr.rcvif = ifp; 1600 1601 wh = mtod(m, struct ieee80211_frame *); 1602 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1603 /* 1604 * WEP is decrypted by hardware. Clear WEP bit 1605 * header for ieee80211_input(). 1606 */ 1607 wh->i_fc[1] &= ~IEEE80211_FC1_WEP; 1608 } 1609 if (sc->sc_drvbpf) { 1610 struct wi_rx_radiotap_header *tap = &sc->sc_rxtap; 1611 1612 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1613 tap->wr_antsignal = frmhdr.wi_rx_signal; 1614 tap->wr_antnoise = frmhdr.wi_rx_silence; 1615 tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 1616 tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 1617 if (frmhdr.wi_status & WI_STAT_PCF) 1618 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1619 1620 /* XXX IEEE80211_RADIOTAP_F_WEP */ 1621 bpf_mtap2(sc->sc_drvbpf, tap, tap->wr_ihdr.it_len, m); 1622 } 1623 1624 /* synchronize driver's BSSID with firmware's BSSID */ 1625 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1626 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1627 wi_sync_bssid(sc, wh->i_addr3); 1628 1629 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1630 1631 ieee80211_input(ic, m, ni, rssi, rstamp); 1632 1633 wi_rssadapt_input(ic, ni, wh, rssi); 1634 1635 /* 1636 * The frame may have caused the node to be marked for 1637 * reclamation (e.g. in response to a DEAUTH message) 1638 * so use release_node here instead of unref_node. 1639 */ 1640 ieee80211_free_node(ni); 1641 } 1642 1643 STATIC void 1644 wi_tx_ex_intr(struct wi_softc *sc) 1645 { 1646 struct ieee80211com *ic = &sc->sc_ic; 1647 struct ifnet *ifp = &sc->sc_if; 1648 struct ieee80211_node *ni; 1649 struct ieee80211_rssdesc *id; 1650 struct wi_rssdesc *rssd; 1651 struct wi_frame frmhdr; 1652 int fid; 1653 u_int16_t status; 1654 1655 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1656 /* Read in the frame header */ 1657 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { 1658 aprint_error_dev(&sc->sc_dev, "%s read fid %x failed\n", 1659 __func__, fid); 1660 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1661 &sc->sc_txpending); 1662 goto out; 1663 } 1664 1665 if (frmhdr.wi_tx_idx >= WI_NTXRSS) { 1666 printf("%s: %s bad idx %02x\n", 1667 device_xname(&sc->sc_dev), __func__, frmhdr.wi_tx_idx); 1668 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1669 &sc->sc_txpending); 1670 goto out; 1671 } 1672 1673 status = le16toh(frmhdr.wi_status); 1674 1675 /* 1676 * Spontaneous station disconnects appear as xmit 1677 * errors. Don't announce them and/or count them 1678 * as an output error. 1679 */ 1680 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1681 aprint_error_dev(&sc->sc_dev, "tx failed"); 1682 if (status & WI_TXSTAT_RET_ERR) 1683 printf(", retry limit exceeded"); 1684 if (status & WI_TXSTAT_AGED_ERR) 1685 printf(", max transmit lifetime exceeded"); 1686 if (status & WI_TXSTAT_DISCONNECT) 1687 printf(", port disconnected"); 1688 if (status & WI_TXSTAT_FORM_ERR) 1689 printf(", invalid format (data len %u src %s)", 1690 le16toh(frmhdr.wi_dat_len), 1691 ether_sprintf(frmhdr.wi_ehdr.ether_shost)); 1692 if (status & ~0xf) 1693 printf(", status=0x%x", status); 1694 printf("\n"); 1695 } 1696 ifp->if_oerrors++; 1697 rssd = &sc->sc_rssd[frmhdr.wi_tx_idx]; 1698 id = &rssd->rd_desc; 1699 if ((status & WI_TXSTAT_RET_ERR) != 0) 1700 wi_lower_rate(ic, id); 1701 1702 ni = id->id_node; 1703 id->id_node = NULL; 1704 1705 if (ni == NULL) { 1706 aprint_error_dev(&sc->sc_dev, "%s null node, rssdesc %02x\n", 1707 __func__, frmhdr.wi_tx_idx); 1708 goto out; 1709 } 1710 1711 if (sc->sc_txpending[id->id_rateidx]-- == 0) { 1712 aprint_error_dev(&sc->sc_dev, "%s txpending[%i] wraparound", 1713 __func__, id->id_rateidx); 1714 sc->sc_txpending[id->id_rateidx] = 0; 1715 } 1716 if (ni != NULL) 1717 ieee80211_free_node(ni); 1718 SLIST_INSERT_HEAD(&sc->sc_rssdfree, rssd, rd_next); 1719 out: 1720 ifp->if_flags &= ~IFF_OACTIVE; 1721 } 1722 1723 STATIC void 1724 wi_txalloc_intr(struct wi_softc *sc) 1725 { 1726 int fid, cur; 1727 1728 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1729 1730 cur = sc->sc_txalloc; 1731 #ifdef DIAGNOSTIC 1732 if (sc->sc_txstarted == 0) { 1733 printf("%s: spurious alloc %x != %x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1734 device_xname(&sc->sc_dev), fid, sc->sc_txd[cur].d_fid, cur, 1735 sc->sc_txqueue, sc->sc_txstart, sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1736 return; 1737 } 1738 #endif 1739 --sc->sc_txstarted; 1740 ++sc->sc_txalloced; 1741 sc->sc_txd[cur].d_fid = fid; 1742 sc->sc_txalloc = (cur + 1) % WI_NTXBUF; 1743 #ifdef WI_RING_DEBUG 1744 printf("%s: alloc %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1745 device_xname(&sc->sc_dev), fid, 1746 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1747 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1748 #endif 1749 } 1750 1751 STATIC void 1752 wi_cmd_intr(struct wi_softc *sc) 1753 { 1754 struct ifnet *ifp = &sc->sc_if; 1755 1756 if (sc->sc_invalid) 1757 return; 1758 #ifdef WI_DEBUG 1759 if (wi_debug > 1) 1760 printf("%s: %d txcmds outstanding\n", __func__, sc->sc_txcmds); 1761 #endif 1762 KASSERT(sc->sc_txcmds > 0); 1763 1764 --sc->sc_txcmds; 1765 1766 if (--sc->sc_txqueued == 0) { 1767 sc->sc_tx_timer = 0; 1768 ifp->if_flags &= ~IFF_OACTIVE; 1769 #ifdef WI_RING_DEBUG 1770 printf("%s: cmd , alloc %d queue %d start %d alloced %d queued %d started %d\n", 1771 device_xname(&sc->sc_dev), 1772 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1773 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1774 #endif 1775 } else 1776 wi_push_packet(sc); 1777 } 1778 1779 STATIC void 1780 wi_push_packet(struct wi_softc *sc) 1781 { 1782 struct ifnet *ifp = &sc->sc_if; 1783 int cur, fid; 1784 1785 cur = sc->sc_txstart; 1786 fid = sc->sc_txd[cur].d_fid; 1787 1788 KASSERT(sc->sc_txcmds == 0); 1789 1790 if (wi_cmd_start(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1791 aprint_error_dev(&sc->sc_dev, "xmit failed\n"); 1792 /* XXX ring might have a hole */ 1793 } 1794 1795 if (sc->sc_txcmds++ > 0) 1796 printf("%s: %d tx cmds pending!!!\n", __func__, sc->sc_txcmds); 1797 1798 ++sc->sc_txstarted; 1799 #ifdef DIAGNOSTIC 1800 if (sc->sc_txstarted > WI_NTXBUF) 1801 aprint_error_dev(&sc->sc_dev, "too many buffers started\n"); 1802 #endif 1803 sc->sc_txstart = (cur + 1) % WI_NTXBUF; 1804 sc->sc_tx_timer = 5; 1805 ifp->if_timer = 1; 1806 #ifdef WI_RING_DEBUG 1807 printf("%s: push %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1808 device_xname(&sc->sc_dev), fid, 1809 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1810 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1811 #endif 1812 } 1813 1814 STATIC void 1815 wi_tx_intr(struct wi_softc *sc) 1816 { 1817 struct ieee80211com *ic = &sc->sc_ic; 1818 struct ifnet *ifp = &sc->sc_if; 1819 struct ieee80211_node *ni; 1820 struct ieee80211_rssdesc *id; 1821 struct wi_rssdesc *rssd; 1822 struct wi_frame frmhdr; 1823 int fid; 1824 1825 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1826 /* Read in the frame header */ 1827 if (wi_read_bap(sc, fid, offsetof(struct wi_frame, wi_tx_swsup2), 1828 &frmhdr.wi_tx_swsup2, 2) != 0) { 1829 aprint_error_dev(&sc->sc_dev, "%s read fid %x failed\n", 1830 __func__, fid); 1831 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1832 &sc->sc_txpending); 1833 goto out; 1834 } 1835 1836 if (frmhdr.wi_tx_idx >= WI_NTXRSS) { 1837 aprint_error_dev(&sc->sc_dev, "%s bad idx %02x\n", 1838 __func__, frmhdr.wi_tx_idx); 1839 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1840 &sc->sc_txpending); 1841 goto out; 1842 } 1843 1844 rssd = &sc->sc_rssd[frmhdr.wi_tx_idx]; 1845 id = &rssd->rd_desc; 1846 wi_raise_rate(ic, id); 1847 1848 ni = id->id_node; 1849 id->id_node = NULL; 1850 1851 if (ni == NULL) { 1852 aprint_error_dev(&sc->sc_dev, "%s null node, rssdesc %02x\n", 1853 __func__, frmhdr.wi_tx_idx); 1854 goto out; 1855 } 1856 1857 if (sc->sc_txpending[id->id_rateidx]-- == 0) { 1858 aprint_error_dev(&sc->sc_dev, "%s txpending[%i] wraparound", 1859 __func__, id->id_rateidx); 1860 sc->sc_txpending[id->id_rateidx] = 0; 1861 } 1862 if (ni != NULL) 1863 ieee80211_free_node(ni); 1864 SLIST_INSERT_HEAD(&sc->sc_rssdfree, rssd, rd_next); 1865 out: 1866 ifp->if_flags &= ~IFF_OACTIVE; 1867 } 1868 1869 STATIC void 1870 wi_info_intr(struct wi_softc *sc) 1871 { 1872 struct ieee80211com *ic = &sc->sc_ic; 1873 struct ifnet *ifp = &sc->sc_if; 1874 int i, fid, len, off; 1875 u_int16_t ltbuf[2]; 1876 u_int16_t stat; 1877 u_int32_t *ptr; 1878 1879 fid = CSR_READ_2(sc, WI_INFO_FID); 1880 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1881 1882 switch (le16toh(ltbuf[1])) { 1883 1884 case WI_INFO_LINK_STAT: 1885 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1886 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1887 switch (le16toh(stat)) { 1888 case CONNECTED: 1889 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 1890 if (ic->ic_state == IEEE80211_S_RUN && 1891 ic->ic_opmode != IEEE80211_M_IBSS) 1892 break; 1893 /* FALLTHROUGH */ 1894 case AP_CHANGE: 1895 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1896 break; 1897 case AP_IN_RANGE: 1898 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 1899 break; 1900 case AP_OUT_OF_RANGE: 1901 if (sc->sc_firmware_type == WI_SYMBOL && 1902 sc->sc_scan_timer > 0) { 1903 if (wi_cmd(sc, WI_CMD_INQUIRE, 1904 WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0) 1905 sc->sc_scan_timer = 0; 1906 break; 1907 } 1908 if (ic->ic_opmode == IEEE80211_M_STA) 1909 sc->sc_flags |= WI_FLAGS_OUTRANGE; 1910 break; 1911 case DISCONNECTED: 1912 case ASSOC_FAILED: 1913 if (ic->ic_opmode == IEEE80211_M_STA) 1914 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1915 break; 1916 } 1917 break; 1918 1919 case WI_INFO_COUNTERS: 1920 /* some card versions have a larger stats structure */ 1921 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1922 ptr = (u_int32_t *)&sc->sc_stats; 1923 off = sizeof(ltbuf); 1924 for (i = 0; i < len; i++, off += 2, ptr++) { 1925 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1926 stat = le16toh(stat); 1927 #ifdef WI_HERMES_STATS_WAR 1928 if (stat & 0xf000) 1929 stat = ~stat; 1930 #endif 1931 *ptr += stat; 1932 } 1933 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + 1934 sc->sc_stats.wi_tx_multi_retries + 1935 sc->sc_stats.wi_tx_retry_limit; 1936 break; 1937 1938 case WI_INFO_SCAN_RESULTS: 1939 case WI_INFO_HOST_SCAN_RESULTS: 1940 wi_scan_result(sc, fid, le16toh(ltbuf[0])); 1941 break; 1942 1943 default: 1944 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1945 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1946 break; 1947 } 1948 } 1949 1950 STATIC int 1951 wi_write_multi(struct wi_softc *sc) 1952 { 1953 struct ifnet *ifp = &sc->sc_if; 1954 int n; 1955 struct wi_mcast mlist; 1956 struct ether_multi *enm; 1957 struct ether_multistep estep; 1958 1959 if ((ifp->if_flags & IFF_PROMISC) != 0) { 1960 allmulti: 1961 ifp->if_flags |= IFF_ALLMULTI; 1962 memset(&mlist, 0, sizeof(mlist)); 1963 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1964 sizeof(mlist)); 1965 } 1966 1967 n = 0; 1968 ETHER_FIRST_MULTI(estep, &sc->sc_ec, enm); 1969 while (enm != NULL) { 1970 /* Punt on ranges or too many multicast addresses. */ 1971 if (!IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi) || 1972 n >= sizeof(mlist) / sizeof(mlist.wi_mcast[0])) 1973 goto allmulti; 1974 1975 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], enm->enm_addrlo); 1976 n++; 1977 ETHER_NEXT_MULTI(estep, enm); 1978 } 1979 ifp->if_flags &= ~IFF_ALLMULTI; 1980 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1981 IEEE80211_ADDR_LEN * n); 1982 } 1983 1984 1985 STATIC void 1986 wi_read_nicid(struct wi_softc *sc) 1987 { 1988 struct wi_card_ident *id; 1989 char *p; 1990 int len; 1991 u_int16_t ver[4]; 1992 1993 /* getting chip identity */ 1994 memset(ver, 0, sizeof(ver)); 1995 len = sizeof(ver); 1996 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1997 printf("%s: using ", device_xname(&sc->sc_dev)); 1998 DPRINTF2(("wi_read_nicid: CARD_ID: %x %x %x %x\n", le16toh(ver[0]), le16toh(ver[1]), le16toh(ver[2]), le16toh(ver[3]))); 1999 2000 sc->sc_firmware_type = WI_NOTYPE; 2001 for (id = wi_card_ident; id->card_name != NULL; id++) { 2002 if (le16toh(ver[0]) == id->card_id) { 2003 printf("%s", id->card_name); 2004 sc->sc_firmware_type = id->firm_type; 2005 break; 2006 } 2007 } 2008 if (sc->sc_firmware_type == WI_NOTYPE) { 2009 if (le16toh(ver[0]) & 0x8000) { 2010 printf("Unknown PRISM2 chip"); 2011 sc->sc_firmware_type = WI_INTERSIL; 2012 } else { 2013 printf("Unknown Lucent chip"); 2014 sc->sc_firmware_type = WI_LUCENT; 2015 } 2016 } 2017 2018 /* get primary firmware version (Only Prism chips) */ 2019 if (sc->sc_firmware_type != WI_LUCENT) { 2020 memset(ver, 0, sizeof(ver)); 2021 len = sizeof(ver); 2022 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 2023 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 2024 le16toh(ver[3]) * 100 + le16toh(ver[1]); 2025 } 2026 2027 /* get station firmware version */ 2028 memset(ver, 0, sizeof(ver)); 2029 len = sizeof(ver); 2030 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 2031 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 2032 le16toh(ver[3]) * 100 + le16toh(ver[1]); 2033 if (sc->sc_firmware_type == WI_INTERSIL && 2034 (sc->sc_sta_firmware_ver == 10102 || 2035 sc->sc_sta_firmware_ver == 20102)) { 2036 char ident[12]; 2037 memset(ident, 0, sizeof(ident)); 2038 len = sizeof(ident); 2039 /* value should be the format like "V2.00-11" */ 2040 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 2041 *(p = (char *)ident) >= 'A' && 2042 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 2043 sc->sc_firmware_type = WI_SYMBOL; 2044 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + 2045 (p[3] - '0') * 1000 + (p[4] - '0') * 100 + 2046 (p[6] - '0') * 10 + (p[7] - '0'); 2047 } 2048 } 2049 2050 printf("\n%s: %s Firmware: ", device_xname(&sc->sc_dev), 2051 sc->sc_firmware_type == WI_LUCENT ? "Lucent" : 2052 (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil")); 2053 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 2054 printf("Primary (%u.%u.%u), ", 2055 sc->sc_pri_firmware_ver / 10000, 2056 (sc->sc_pri_firmware_ver % 10000) / 100, 2057 sc->sc_pri_firmware_ver % 100); 2058 printf("Station (%u.%u.%u)\n", 2059 sc->sc_sta_firmware_ver / 10000, 2060 (sc->sc_sta_firmware_ver % 10000) / 100, 2061 sc->sc_sta_firmware_ver % 100); 2062 } 2063 2064 STATIC int 2065 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 2066 { 2067 struct wi_ssid ssid; 2068 2069 if (buflen > IEEE80211_NWID_LEN) 2070 return ENOBUFS; 2071 memset(&ssid, 0, sizeof(ssid)); 2072 ssid.wi_len = htole16(buflen); 2073 memcpy(ssid.wi_ssid, buf, buflen); 2074 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 2075 } 2076 2077 STATIC int 2078 wi_get_cfg(struct ifnet *ifp, u_long cmd, void *data) 2079 { 2080 struct wi_softc *sc = ifp->if_softc; 2081 struct ieee80211com *ic = &sc->sc_ic; 2082 struct ifreq *ifr = (struct ifreq *)data; 2083 struct wi_req wreq; 2084 int len, n, error; 2085 2086 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq)); 2087 if (error) 2088 return error; 2089 len = (wreq.wi_len - 1) * 2; 2090 if (len < sizeof(u_int16_t)) 2091 return ENOSPC; 2092 if (len > sizeof(wreq.wi_val)) 2093 len = sizeof(wreq.wi_val); 2094 2095 switch (wreq.wi_type) { 2096 2097 case WI_RID_IFACE_STATS: 2098 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats)); 2099 if (len < sizeof(sc->sc_stats)) 2100 error = ENOSPC; 2101 else 2102 len = sizeof(sc->sc_stats); 2103 break; 2104 2105 case WI_RID_ENCRYPTION: 2106 case WI_RID_TX_CRYPT_KEY: 2107 case WI_RID_DEFLT_CRYPT_KEYS: 2108 case WI_RID_TX_RATE: 2109 return ieee80211_cfgget(ic, cmd, data); 2110 2111 case WI_RID_MICROWAVE_OVEN: 2112 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) { 2113 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2114 &len); 2115 break; 2116 } 2117 wreq.wi_val[0] = htole16(sc->sc_microwave_oven); 2118 len = sizeof(u_int16_t); 2119 break; 2120 2121 case WI_RID_DBM_ADJUST: 2122 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) { 2123 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2124 &len); 2125 break; 2126 } 2127 wreq.wi_val[0] = htole16(sc->sc_dbm_offset); 2128 len = sizeof(u_int16_t); 2129 break; 2130 2131 case WI_RID_ROAMING_MODE: 2132 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) { 2133 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2134 &len); 2135 break; 2136 } 2137 wreq.wi_val[0] = htole16(sc->sc_roaming_mode); 2138 len = sizeof(u_int16_t); 2139 break; 2140 2141 case WI_RID_SYSTEM_SCALE: 2142 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) { 2143 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2144 &len); 2145 break; 2146 } 2147 wreq.wi_val[0] = htole16(sc->sc_system_scale); 2148 len = sizeof(u_int16_t); 2149 break; 2150 2151 case WI_RID_FRAG_THRESH: 2152 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) { 2153 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2154 &len); 2155 break; 2156 } 2157 wreq.wi_val[0] = htole16(sc->sc_frag_thresh); 2158 len = sizeof(u_int16_t); 2159 break; 2160 2161 case WI_RID_READ_APS: 2162 #ifndef IEEE80211_NO_HOSTAP 2163 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 2164 return ieee80211_cfgget(ic, cmd, data); 2165 #endif /* !IEEE80211_NO_HOSTAP */ 2166 if (sc->sc_scan_timer > 0) { 2167 error = EINPROGRESS; 2168 break; 2169 } 2170 n = sc->sc_naps; 2171 if (len < sizeof(n)) { 2172 error = ENOSPC; 2173 break; 2174 } 2175 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n) 2176 n = (len - sizeof(n)) / sizeof(struct wi_apinfo); 2177 len = sizeof(n) + sizeof(struct wi_apinfo) * n; 2178 memcpy(wreq.wi_val, &n, sizeof(n)); 2179 memcpy((char *)wreq.wi_val + sizeof(n), sc->sc_aps, 2180 sizeof(struct wi_apinfo) * n); 2181 break; 2182 2183 default: 2184 if (sc->sc_enabled) { 2185 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2186 &len); 2187 break; 2188 } 2189 switch (wreq.wi_type) { 2190 case WI_RID_MAX_DATALEN: 2191 wreq.wi_val[0] = htole16(sc->sc_max_datalen); 2192 len = sizeof(u_int16_t); 2193 break; 2194 case WI_RID_FRAG_THRESH: 2195 wreq.wi_val[0] = htole16(sc->sc_frag_thresh); 2196 len = sizeof(u_int16_t); 2197 break; 2198 case WI_RID_RTS_THRESH: 2199 wreq.wi_val[0] = htole16(sc->sc_rts_thresh); 2200 len = sizeof(u_int16_t); 2201 break; 2202 case WI_RID_CNFAUTHMODE: 2203 wreq.wi_val[0] = htole16(sc->sc_cnfauthmode); 2204 len = sizeof(u_int16_t); 2205 break; 2206 case WI_RID_NODENAME: 2207 if (len < sc->sc_nodelen + sizeof(u_int16_t)) { 2208 error = ENOSPC; 2209 break; 2210 } 2211 len = sc->sc_nodelen + sizeof(u_int16_t); 2212 wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2); 2213 memcpy(&wreq.wi_val[1], sc->sc_nodename, 2214 sc->sc_nodelen); 2215 break; 2216 default: 2217 return ieee80211_cfgget(ic, cmd, data); 2218 } 2219 break; 2220 } 2221 if (error) 2222 return error; 2223 wreq.wi_len = (len + 1) / 2 + 1; 2224 return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2); 2225 } 2226 2227 STATIC int 2228 wi_set_cfg(struct ifnet *ifp, u_long cmd, void *data) 2229 { 2230 struct wi_softc *sc = ifp->if_softc; 2231 struct ieee80211com *ic = &sc->sc_ic; 2232 struct ifreq *ifr = (struct ifreq *)data; 2233 struct ieee80211_rateset *rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 2234 struct wi_req wreq; 2235 struct mbuf *m; 2236 int i, len, error; 2237 2238 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq)); 2239 if (error) 2240 return error; 2241 len = (wreq.wi_len - 1) * 2; 2242 switch (wreq.wi_type) { 2243 case WI_RID_MAC_NODE: 2244 /* XXX convert to SIOCALIFADDR, AF_LINK, IFLR_ACTIVE */ 2245 (void)memcpy(ic->ic_myaddr, wreq.wi_val, ETHER_ADDR_LEN); 2246 if_set_sadl(ifp, ic->ic_myaddr, ETHER_ADDR_LEN, false); 2247 wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, 2248 IEEE80211_ADDR_LEN); 2249 break; 2250 2251 case WI_RID_DBM_ADJUST: 2252 return ENODEV; 2253 2254 case WI_RID_NODENAME: 2255 if (le16toh(wreq.wi_val[0]) * 2 > len || 2256 le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) { 2257 error = ENOSPC; 2258 break; 2259 } 2260 if (sc->sc_enabled) { 2261 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2262 len); 2263 if (error) 2264 break; 2265 } 2266 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2; 2267 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen); 2268 break; 2269 2270 case WI_RID_MICROWAVE_OVEN: 2271 case WI_RID_ROAMING_MODE: 2272 case WI_RID_SYSTEM_SCALE: 2273 case WI_RID_FRAG_THRESH: 2274 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN && 2275 (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0) 2276 break; 2277 if (wreq.wi_type == WI_RID_ROAMING_MODE && 2278 (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0) 2279 break; 2280 if (wreq.wi_type == WI_RID_SYSTEM_SCALE && 2281 (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0) 2282 break; 2283 if (wreq.wi_type == WI_RID_FRAG_THRESH && 2284 (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0) 2285 break; 2286 /* FALLTHROUGH */ 2287 case WI_RID_RTS_THRESH: 2288 case WI_RID_CNFAUTHMODE: 2289 case WI_RID_MAX_DATALEN: 2290 if (sc->sc_enabled) { 2291 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2292 sizeof(u_int16_t)); 2293 if (error) 2294 break; 2295 } 2296 switch (wreq.wi_type) { 2297 case WI_RID_FRAG_THRESH: 2298 sc->sc_frag_thresh = le16toh(wreq.wi_val[0]); 2299 break; 2300 case WI_RID_RTS_THRESH: 2301 sc->sc_rts_thresh = le16toh(wreq.wi_val[0]); 2302 break; 2303 case WI_RID_MICROWAVE_OVEN: 2304 sc->sc_microwave_oven = le16toh(wreq.wi_val[0]); 2305 break; 2306 case WI_RID_ROAMING_MODE: 2307 sc->sc_roaming_mode = le16toh(wreq.wi_val[0]); 2308 break; 2309 case WI_RID_SYSTEM_SCALE: 2310 sc->sc_system_scale = le16toh(wreq.wi_val[0]); 2311 break; 2312 case WI_RID_CNFAUTHMODE: 2313 sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]); 2314 break; 2315 case WI_RID_MAX_DATALEN: 2316 sc->sc_max_datalen = le16toh(wreq.wi_val[0]); 2317 break; 2318 } 2319 break; 2320 2321 case WI_RID_TX_RATE: 2322 switch (le16toh(wreq.wi_val[0])) { 2323 case 3: 2324 ic->ic_fixed_rate = -1; 2325 break; 2326 default: 2327 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 2328 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) 2329 / 2 == le16toh(wreq.wi_val[0])) 2330 break; 2331 } 2332 if (i == IEEE80211_RATE_SIZE) 2333 return EINVAL; 2334 ic->ic_fixed_rate = i; 2335 } 2336 if (sc->sc_enabled) 2337 error = wi_cfg_txrate(sc); 2338 break; 2339 2340 case WI_RID_SCAN_APS: 2341 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP) 2342 error = wi_scan_ap(sc, 0x3fff, 0x000f); 2343 break; 2344 2345 case WI_RID_MGMT_XMIT: 2346 if (!sc->sc_enabled) { 2347 error = ENETDOWN; 2348 break; 2349 } 2350 if (ic->ic_mgtq.ifq_len > 5) { 2351 error = EAGAIN; 2352 break; 2353 } 2354 /* XXX wi_len looks in u_int8_t, not in u_int16_t */ 2355 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL); 2356 if (m == NULL) { 2357 error = ENOMEM; 2358 break; 2359 } 2360 IF_ENQUEUE(&ic->ic_mgtq, m); 2361 break; 2362 2363 default: 2364 if (sc->sc_enabled) { 2365 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2366 len); 2367 if (error) 2368 break; 2369 } 2370 error = ieee80211_cfgset(ic, cmd, data); 2371 break; 2372 } 2373 return error; 2374 } 2375 2376 /* Rate is 0 for hardware auto-select, otherwise rate is 2377 * 2, 4, 11, or 22 (units of 500Kbps). 2378 */ 2379 STATIC int 2380 wi_write_txrate(struct wi_softc *sc, int rate) 2381 { 2382 u_int16_t hwrate; 2383 2384 /* rate: 0, 2, 4, 11, 22 */ 2385 switch (sc->sc_firmware_type) { 2386 case WI_LUCENT: 2387 switch (rate & IEEE80211_RATE_VAL) { 2388 case 2: 2389 hwrate = 1; 2390 break; 2391 case 4: 2392 hwrate = 2; 2393 break; 2394 default: 2395 hwrate = 3; /* auto */ 2396 break; 2397 case 11: 2398 hwrate = 4; 2399 break; 2400 case 22: 2401 hwrate = 5; 2402 break; 2403 } 2404 break; 2405 default: 2406 switch (rate & IEEE80211_RATE_VAL) { 2407 case 2: 2408 hwrate = 1; 2409 break; 2410 case 4: 2411 hwrate = 2; 2412 break; 2413 case 11: 2414 hwrate = 4; 2415 break; 2416 case 22: 2417 hwrate = 8; 2418 break; 2419 default: 2420 hwrate = 15; /* auto */ 2421 break; 2422 } 2423 break; 2424 } 2425 2426 if (sc->sc_tx_rate == hwrate) 2427 return 0; 2428 2429 if (sc->sc_if.if_flags & IFF_DEBUG) 2430 printf("%s: tx rate %d -> %d (%d)\n", __func__, sc->sc_tx_rate, 2431 hwrate, rate); 2432 2433 sc->sc_tx_rate = hwrate; 2434 2435 return wi_write_val(sc, WI_RID_TX_RATE, sc->sc_tx_rate); 2436 } 2437 2438 STATIC int 2439 wi_cfg_txrate(struct wi_softc *sc) 2440 { 2441 struct ieee80211com *ic = &sc->sc_ic; 2442 struct ieee80211_rateset *rs; 2443 int rate; 2444 2445 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 2446 2447 sc->sc_tx_rate = 0; /* force write to RID */ 2448 2449 if (ic->ic_fixed_rate < 0) 2450 rate = 0; /* auto */ 2451 else 2452 rate = rs->rs_rates[ic->ic_fixed_rate]; 2453 2454 return wi_write_txrate(sc, rate); 2455 } 2456 2457 STATIC int 2458 wi_key_delete(struct ieee80211com *ic, const struct ieee80211_key *k) 2459 { 2460 struct wi_softc *sc = ic->ic_ifp->if_softc; 2461 u_int keyix = k->wk_keyix; 2462 2463 DPRINTF(("%s: delete key %u\n", __func__, keyix)); 2464 2465 if (keyix >= IEEE80211_WEP_NKID) 2466 return 0; 2467 if (k->wk_keylen != 0) 2468 sc->sc_flags &= ~WI_FLAGS_WEP_VALID; 2469 2470 return 1; 2471 } 2472 2473 static int 2474 wi_key_set(struct ieee80211com *ic, const struct ieee80211_key *k, 2475 const u_int8_t mac[IEEE80211_ADDR_LEN]) 2476 { 2477 struct wi_softc *sc = ic->ic_ifp->if_softc; 2478 2479 DPRINTF(("%s: set key %u\n", __func__, k->wk_keyix)); 2480 2481 if (k->wk_keyix >= IEEE80211_WEP_NKID) 2482 return 0; 2483 2484 sc->sc_flags &= ~WI_FLAGS_WEP_VALID; 2485 2486 return 1; 2487 } 2488 2489 STATIC void 2490 wi_key_update_begin(struct ieee80211com *ic) 2491 { 2492 DPRINTF(("%s:\n", __func__)); 2493 } 2494 2495 STATIC void 2496 wi_key_update_end(struct ieee80211com *ic) 2497 { 2498 struct ifnet *ifp = ic->ic_ifp; 2499 struct wi_softc *sc = ifp->if_softc; 2500 2501 DPRINTF(("%s:\n", __func__)); 2502 2503 if ((sc->sc_flags & WI_FLAGS_WEP_VALID) != 0) 2504 return; 2505 if ((ic->ic_caps & IEEE80211_C_WEP) != 0 && sc->sc_enabled && 2506 !sc->sc_invalid) 2507 (void)wi_write_wep(sc); 2508 } 2509 2510 STATIC int 2511 wi_write_wep(struct wi_softc *sc) 2512 { 2513 struct ifnet *ifp = &sc->sc_if; 2514 struct ieee80211com *ic = &sc->sc_ic; 2515 int error = 0; 2516 int i, keylen; 2517 u_int16_t val; 2518 struct wi_key wkey[IEEE80211_WEP_NKID]; 2519 2520 if ((ifp->if_flags & IFF_RUNNING) != 0) 2521 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 2522 2523 switch (sc->sc_firmware_type) { 2524 case WI_LUCENT: 2525 val = (ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 2526 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 2527 if (error) 2528 break; 2529 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_def_txkey); 2530 if (error) 2531 break; 2532 memset(wkey, 0, sizeof(wkey)); 2533 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2534 keylen = ic->ic_nw_keys[i].wk_keylen; 2535 wkey[i].wi_keylen = htole16(keylen); 2536 memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key, 2537 keylen); 2538 } 2539 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 2540 wkey, sizeof(wkey)); 2541 break; 2542 2543 case WI_INTERSIL: 2544 case WI_SYMBOL: 2545 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2546 /* 2547 * ONLY HWB3163 EVAL-CARD Firmware version 2548 * less than 0.8 variant2 2549 * 2550 * If promiscuous mode disable, Prism2 chip 2551 * does not work with WEP . 2552 * It is under investigation for details. 2553 * (ichiro (at) NetBSD.org) 2554 */ 2555 if (sc->sc_firmware_type == WI_INTERSIL && 2556 sc->sc_sta_firmware_ver < 802 ) { 2557 /* firm ver < 0.8 variant 2 */ 2558 wi_write_val(sc, WI_RID_PROMISC, 1); 2559 } 2560 wi_write_val(sc, WI_RID_CNFAUTHMODE, 2561 sc->sc_cnfauthmode); 2562 val = PRIVACY_INVOKED; 2563 if ((sc->sc_ic_flags & IEEE80211_F_DROPUNENC) != 0) 2564 val |= EXCLUDE_UNENCRYPTED; 2565 #ifndef IEEE80211_NO_HOSTAP 2566 /* 2567 * Encryption firmware has a bug for HostAP mode. 2568 */ 2569 if (sc->sc_firmware_type == WI_INTERSIL && 2570 ic->ic_opmode == IEEE80211_M_HOSTAP) 2571 val |= HOST_ENCRYPT; 2572 #endif /* !IEEE80211_NO_HOSTAP */ 2573 } else { 2574 wi_write_val(sc, WI_RID_CNFAUTHMODE, 2575 IEEE80211_AUTH_OPEN); 2576 val = HOST_ENCRYPT | HOST_DECRYPT; 2577 } 2578 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 2579 if (error) 2580 break; 2581 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, 2582 ic->ic_def_txkey); 2583 if (error) 2584 break; 2585 /* 2586 * It seems that the firmware accept 104bit key only if 2587 * all the keys have 104bit length. We get the length of 2588 * the transmit key and use it for all other keys. 2589 * Perhaps we should use software WEP for such situation. 2590 */ 2591 if (ic->ic_def_txkey == IEEE80211_KEYIX_NONE || 2592 IEEE80211_KEY_UNDEFINED(ic->ic_nw_keys[ic->ic_def_txkey])) 2593 keylen = 13; /* No keys => 104bit ok */ 2594 else 2595 keylen = ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen; 2596 2597 if (keylen > IEEE80211_WEP_KEYLEN) 2598 keylen = 13; /* 104bit keys */ 2599 else 2600 keylen = IEEE80211_WEP_KEYLEN; 2601 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2602 error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i, 2603 ic->ic_nw_keys[i].wk_key, keylen); 2604 if (error) 2605 break; 2606 } 2607 break; 2608 } 2609 if ((ifp->if_flags & IFF_RUNNING) != 0) 2610 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 2611 if (error == 0) 2612 sc->sc_flags |= WI_FLAGS_WEP_VALID; 2613 return error; 2614 } 2615 2616 /* Must be called at proper protection level! */ 2617 STATIC int 2618 wi_cmd_start(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 2619 { 2620 #ifdef WI_HISTOGRAM 2621 static int hist1[11]; 2622 static int hist1count; 2623 #endif 2624 int i; 2625 2626 /* wait for the busy bit to clear */ 2627 for (i = 500; i > 0; i--) { /* 5s */ 2628 if ((CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY) == 0) 2629 break; 2630 if (sc->sc_invalid) 2631 return ENXIO; 2632 DELAY(1000); /* 1 m sec */ 2633 } 2634 if (i == 0) { 2635 aprint_error_dev(&sc->sc_dev, "wi_cmd: busy bit won't clear.\n"); 2636 return(ETIMEDOUT); 2637 } 2638 #ifdef WI_HISTOGRAM 2639 if (i > 490) 2640 hist1[500 - i]++; 2641 else 2642 hist1[10]++; 2643 if (++hist1count == 1000) { 2644 hist1count = 0; 2645 printf("%s: hist1: %d %d %d %d %d %d %d %d %d %d %d\n", 2646 device_xname(&sc->sc_dev), 2647 hist1[0], hist1[1], hist1[2], hist1[3], hist1[4], 2648 hist1[5], hist1[6], hist1[7], hist1[8], hist1[9], 2649 hist1[10]); 2650 } 2651 #endif 2652 CSR_WRITE_2(sc, WI_PARAM0, val0); 2653 CSR_WRITE_2(sc, WI_PARAM1, val1); 2654 CSR_WRITE_2(sc, WI_PARAM2, val2); 2655 CSR_WRITE_2(sc, WI_COMMAND, cmd); 2656 2657 return 0; 2658 } 2659 2660 STATIC int 2661 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 2662 { 2663 int rc; 2664 2665 #ifdef WI_DEBUG 2666 if (wi_debug) { 2667 printf("%s: [enter] %d txcmds outstanding\n", __func__, 2668 sc->sc_txcmds); 2669 } 2670 #endif 2671 if (sc->sc_txcmds > 0) 2672 wi_txcmd_wait(sc); 2673 2674 if ((rc = wi_cmd_start(sc, cmd, val0, val1, val2)) != 0) 2675 return rc; 2676 2677 if (cmd == WI_CMD_INI) { 2678 /* XXX: should sleep here. */ 2679 if (sc->sc_invalid) 2680 return ENXIO; 2681 DELAY(100*1000); 2682 } 2683 rc = wi_cmd_wait(sc, cmd, val0); 2684 2685 #ifdef WI_DEBUG 2686 if (wi_debug) { 2687 printf("%s: [ ] %d txcmds outstanding\n", __func__, 2688 sc->sc_txcmds); 2689 } 2690 #endif 2691 if (sc->sc_txcmds > 0) 2692 wi_cmd_intr(sc); 2693 2694 #ifdef WI_DEBUG 2695 if (wi_debug) { 2696 printf("%s: [leave] %d txcmds outstanding\n", __func__, 2697 sc->sc_txcmds); 2698 } 2699 #endif 2700 return rc; 2701 } 2702 2703 STATIC int 2704 wi_cmd_wait(struct wi_softc *sc, int cmd, int val0) 2705 { 2706 #ifdef WI_HISTOGRAM 2707 static int hist2[11]; 2708 static int hist2count; 2709 #endif 2710 int i, status; 2711 #ifdef WI_DEBUG 2712 if (wi_debug > 1) 2713 printf("%s: cmd=%#x, arg=%#x\n", __func__, cmd, val0); 2714 #endif /* WI_DEBUG */ 2715 2716 /* wait for the cmd completed bit */ 2717 for (i = 0; i < WI_TIMEOUT; i++) { 2718 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD) 2719 break; 2720 if (sc->sc_invalid) 2721 return ENXIO; 2722 DELAY(WI_DELAY); 2723 } 2724 2725 #ifdef WI_HISTOGRAM 2726 if (i < 100) 2727 hist2[i/10]++; 2728 else 2729 hist2[10]++; 2730 if (++hist2count == 1000) { 2731 hist2count = 0; 2732 printf("%s: hist2: %d %d %d %d %d %d %d %d %d %d %d\n", 2733 device_xname(&sc->sc_dev), 2734 hist2[0], hist2[1], hist2[2], hist2[3], hist2[4], 2735 hist2[5], hist2[6], hist2[7], hist2[8], hist2[9], 2736 hist2[10]); 2737 } 2738 #endif 2739 2740 status = CSR_READ_2(sc, WI_STATUS); 2741 2742 if (i == WI_TIMEOUT) { 2743 aprint_error_dev(&sc->sc_dev, "command timed out, cmd=0x%x, arg=0x%x\n", 2744 cmd, val0); 2745 return ETIMEDOUT; 2746 } 2747 2748 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 2749 2750 if (status & WI_STAT_CMD_RESULT) { 2751 aprint_error_dev(&sc->sc_dev, "command failed, cmd=0x%x, arg=0x%x\n", 2752 cmd, val0); 2753 return EIO; 2754 } 2755 return 0; 2756 } 2757 2758 STATIC int 2759 wi_seek_bap(struct wi_softc *sc, int id, int off) 2760 { 2761 #ifdef WI_HISTOGRAM 2762 static int hist4[11]; 2763 static int hist4count; 2764 #endif 2765 int i, status; 2766 2767 CSR_WRITE_2(sc, WI_SEL0, id); 2768 CSR_WRITE_2(sc, WI_OFF0, off); 2769 2770 for (i = 0; ; i++) { 2771 status = CSR_READ_2(sc, WI_OFF0); 2772 if ((status & WI_OFF_BUSY) == 0) 2773 break; 2774 if (i == WI_TIMEOUT) { 2775 aprint_error_dev(&sc->sc_dev, "timeout in wi_seek to %x/%x\n", 2776 id, off); 2777 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2778 return ETIMEDOUT; 2779 } 2780 if (sc->sc_invalid) 2781 return ENXIO; 2782 DELAY(2); 2783 } 2784 #ifdef WI_HISTOGRAM 2785 if (i < 100) 2786 hist4[i/10]++; 2787 else 2788 hist4[10]++; 2789 if (++hist4count == 2500) { 2790 hist4count = 0; 2791 printf("%s: hist4: %d %d %d %d %d %d %d %d %d %d %d\n", 2792 device_xname(&sc->sc_dev), 2793 hist4[0], hist4[1], hist4[2], hist4[3], hist4[4], 2794 hist4[5], hist4[6], hist4[7], hist4[8], hist4[9], 2795 hist4[10]); 2796 } 2797 #endif 2798 if (status & WI_OFF_ERR) { 2799 printf("%s: failed in wi_seek to %x/%x\n", 2800 device_xname(&sc->sc_dev), id, off); 2801 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2802 return EIO; 2803 } 2804 sc->sc_bap_id = id; 2805 sc->sc_bap_off = off; 2806 return 0; 2807 } 2808 2809 STATIC int 2810 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 2811 { 2812 int error, cnt; 2813 2814 if (buflen == 0) 2815 return 0; 2816 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 2817 if ((error = wi_seek_bap(sc, id, off)) != 0) 2818 return error; 2819 } 2820 cnt = (buflen + 1) / 2; 2821 CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 2822 sc->sc_bap_off += cnt * 2; 2823 return 0; 2824 } 2825 2826 STATIC int 2827 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 2828 { 2829 int error, cnt; 2830 2831 if (buflen == 0) 2832 return 0; 2833 2834 #ifdef WI_HERMES_AUTOINC_WAR 2835 again: 2836 #endif 2837 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 2838 if ((error = wi_seek_bap(sc, id, off)) != 0) 2839 return error; 2840 } 2841 cnt = (buflen + 1) / 2; 2842 CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 2843 sc->sc_bap_off += cnt * 2; 2844 2845 #ifdef WI_HERMES_AUTOINC_WAR 2846 /* 2847 * According to the comments in the HCF Light code, there is a bug 2848 * in the Hermes (or possibly in certain Hermes firmware revisions) 2849 * where the chip's internal autoincrement counter gets thrown off 2850 * during data writes: the autoincrement is missed, causing one 2851 * data word to be overwritten and subsequent words to be written to 2852 * the wrong memory locations. The end result is that we could end 2853 * up transmitting bogus frames without realizing it. The workaround 2854 * for this is to write a couple of extra guard words after the end 2855 * of the transfer, then attempt to read then back. If we fail to 2856 * locate the guard words where we expect them, we preform the 2857 * transfer over again. 2858 */ 2859 if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) { 2860 CSR_WRITE_2(sc, WI_DATA0, 0x1234); 2861 CSR_WRITE_2(sc, WI_DATA0, 0x5678); 2862 wi_seek_bap(sc, id, sc->sc_bap_off); 2863 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2864 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 || 2865 CSR_READ_2(sc, WI_DATA0) != 0x5678) { 2866 aprint_error_dev(&sc->sc_dev, "detect auto increment bug, try again\n"); 2867 goto again; 2868 } 2869 } 2870 #endif 2871 return 0; 2872 } 2873 2874 STATIC int 2875 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 2876 { 2877 int error, len; 2878 struct mbuf *m; 2879 2880 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 2881 if (m->m_len == 0) 2882 continue; 2883 2884 len = min(m->m_len, totlen); 2885 2886 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 2887 m_copydata(m, 0, totlen, (void *)&sc->sc_txbuf); 2888 return wi_write_bap(sc, id, off, (void *)&sc->sc_txbuf, 2889 totlen); 2890 } 2891 2892 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 2893 return error; 2894 2895 off += m->m_len; 2896 totlen -= len; 2897 } 2898 return 0; 2899 } 2900 2901 STATIC int 2902 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 2903 { 2904 int i; 2905 2906 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 2907 aprint_error_dev(&sc->sc_dev, "failed to allocate %d bytes on NIC\n", len); 2908 return ENOMEM; 2909 } 2910 2911 for (i = 0; i < WI_TIMEOUT; i++) { 2912 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 2913 break; 2914 DELAY(1); 2915 } 2916 if (i == WI_TIMEOUT) { 2917 aprint_error_dev(&sc->sc_dev, "timeout in alloc\n"); 2918 return ETIMEDOUT; 2919 } 2920 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 2921 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 2922 return 0; 2923 } 2924 2925 STATIC int 2926 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 2927 { 2928 int error, len; 2929 u_int16_t ltbuf[2]; 2930 2931 /* Tell the NIC to enter record read mode. */ 2932 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 2933 if (error) 2934 return error; 2935 2936 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2937 if (error) 2938 return error; 2939 2940 if (le16toh(ltbuf[0]) == 0) 2941 return EOPNOTSUPP; 2942 if (le16toh(ltbuf[1]) != rid) { 2943 aprint_error_dev(&sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 2944 rid, le16toh(ltbuf[1])); 2945 return EIO; 2946 } 2947 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 2948 if (*buflenp < len) { 2949 aprint_error_dev(&sc->sc_dev, "record buffer is too small, " 2950 "rid=%x, size=%d, len=%d\n", 2951 rid, *buflenp, len); 2952 return ENOSPC; 2953 } 2954 *buflenp = len; 2955 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 2956 } 2957 2958 STATIC int 2959 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 2960 { 2961 int error; 2962 u_int16_t ltbuf[2]; 2963 2964 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 2965 ltbuf[1] = htole16(rid); 2966 2967 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2968 if (error) 2969 return error; 2970 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2971 if (error) 2972 return error; 2973 2974 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2975 } 2976 2977 STATIC void 2978 wi_rssadapt_updatestats_cb(void *arg, struct ieee80211_node *ni) 2979 { 2980 struct wi_node *wn = (void*)ni; 2981 ieee80211_rssadapt_updatestats(&wn->wn_rssadapt); 2982 } 2983 2984 STATIC void 2985 wi_rssadapt_updatestats(void *arg) 2986 { 2987 struct wi_softc *sc = arg; 2988 struct ieee80211com *ic = &sc->sc_ic; 2989 ieee80211_iterate_nodes(&ic->ic_sta, wi_rssadapt_updatestats_cb, arg); 2990 if (ic->ic_opmode != IEEE80211_M_MONITOR && 2991 ic->ic_state == IEEE80211_S_RUN) 2992 callout_reset(&sc->sc_rssadapt_ch, hz / 10, 2993 wi_rssadapt_updatestats, arg); 2994 } 2995 2996 /* 2997 * In HOSTAP mode, restore IEEE80211_F_DROPUNENC when operating 2998 * with WEP enabled so that the AP drops unencoded frames at the 2999 * 802.11 layer. 3000 * 3001 * In all other modes, clear IEEE80211_F_DROPUNENC when operating 3002 * with WEP enabled so we don't drop unencoded frames at the 802.11 3003 * layer. This is necessary because we must strip the WEP bit from 3004 * the 802.11 header before passing frames to ieee80211_input 3005 * because the card has already stripped the WEP crypto header from 3006 * the packet. 3007 */ 3008 STATIC void 3009 wi_mend_flags(struct wi_softc *sc, enum ieee80211_state nstate) 3010 { 3011 struct ieee80211com *ic = &sc->sc_ic; 3012 3013 if (nstate == IEEE80211_S_RUN && 3014 (ic->ic_flags & IEEE80211_F_PRIVACY) != 0 && 3015 ic->ic_opmode != IEEE80211_M_HOSTAP) 3016 ic->ic_flags &= ~IEEE80211_F_DROPUNENC; 3017 else 3018 ic->ic_flags |= sc->sc_ic_flags; 3019 3020 DPRINTF(("%s: state %d, " 3021 "ic->ic_flags & IEEE80211_F_DROPUNENC = %#" PRIx32 ", " 3022 "sc->sc_ic_flags & IEEE80211_F_DROPUNENC = %#" PRIx32 "\n", 3023 __func__, nstate, 3024 ic->ic_flags & IEEE80211_F_DROPUNENC, 3025 sc->sc_ic_flags & IEEE80211_F_DROPUNENC)); 3026 } 3027 3028 STATIC int 3029 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 3030 { 3031 struct ifnet *ifp = ic->ic_ifp; 3032 struct wi_softc *sc = ifp->if_softc; 3033 struct ieee80211_node *ni = ic->ic_bss; 3034 u_int16_t val; 3035 struct wi_ssid ssid; 3036 struct wi_macaddr bssid, old_bssid; 3037 enum ieee80211_state ostate; 3038 #ifdef WI_DEBUG 3039 static const char *stname[] = 3040 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 3041 #endif /* WI_DEBUG */ 3042 3043 ostate = ic->ic_state; 3044 DPRINTF(("wi_newstate: %s -> %s\n", stname[ostate], stname[nstate])); 3045 3046 switch (nstate) { 3047 case IEEE80211_S_INIT: 3048 if (ic->ic_opmode != IEEE80211_M_MONITOR) 3049 callout_stop(&sc->sc_rssadapt_ch); 3050 ic->ic_flags &= ~IEEE80211_F_SIBSS; 3051 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 3052 break; 3053 3054 case IEEE80211_S_SCAN: 3055 case IEEE80211_S_AUTH: 3056 case IEEE80211_S_ASSOC: 3057 ic->ic_state = nstate; /* NB: skip normal ieee80211 handling */ 3058 wi_mend_flags(sc, nstate); 3059 return 0; 3060 3061 case IEEE80211_S_RUN: 3062 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 3063 IEEE80211_ADDR_COPY(old_bssid.wi_mac_addr, ni->ni_bssid); 3064 wi_read_xrid(sc, WI_RID_CURRENT_BSSID, &bssid, 3065 IEEE80211_ADDR_LEN); 3066 IEEE80211_ADDR_COPY(ni->ni_bssid, &bssid); 3067 IEEE80211_ADDR_COPY(ni->ni_macaddr, &bssid); 3068 wi_read_xrid(sc, WI_RID_CURRENT_CHAN, &val, sizeof(val)); 3069 if (!isset(ic->ic_chan_avail, le16toh(val))) 3070 panic("%s: invalid channel %d\n", device_xname(&sc->sc_dev), 3071 le16toh(val)); 3072 ni->ni_chan = &ic->ic_channels[le16toh(val)]; 3073 3074 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 3075 #ifndef IEEE80211_NO_HOSTAP 3076 ni->ni_esslen = ic->ic_des_esslen; 3077 memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); 3078 ni->ni_rates = ic->ic_sup_rates[ 3079 ieee80211_chan2mode(ic, ni->ni_chan)]; 3080 ni->ni_intval = ic->ic_lintval; 3081 ni->ni_capinfo = IEEE80211_CAPINFO_ESS; 3082 if (ic->ic_flags & IEEE80211_F_PRIVACY) 3083 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 3084 #endif /* !IEEE80211_NO_HOSTAP */ 3085 } else { 3086 wi_read_xrid(sc, WI_RID_CURRENT_SSID, &ssid, 3087 sizeof(ssid)); 3088 ni->ni_esslen = le16toh(ssid.wi_len); 3089 if (ni->ni_esslen > IEEE80211_NWID_LEN) 3090 ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/ 3091 memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen); 3092 ni->ni_rates = ic->ic_sup_rates[ 3093 ieee80211_chan2mode(ic, ni->ni_chan)]; /*XXX*/ 3094 } 3095 if (ic->ic_opmode != IEEE80211_M_MONITOR) 3096 callout_reset(&sc->sc_rssadapt_ch, hz / 10, 3097 wi_rssadapt_updatestats, sc); 3098 /* Trigger routing socket messages. XXX Copied from 3099 * ieee80211_newstate. 3100 */ 3101 if (ic->ic_opmode == IEEE80211_M_STA) 3102 ieee80211_notify_node_join(ic, ic->ic_bss, 3103 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 3104 break; 3105 } 3106 wi_mend_flags(sc, nstate); 3107 return (*sc->sc_newstate)(ic, nstate, arg); 3108 } 3109 3110 STATIC void 3111 wi_set_tim(struct ieee80211_node *ni, int set) 3112 { 3113 struct ieee80211com *ic = ni->ni_ic; 3114 struct wi_softc *sc = ic->ic_ifp->if_softc; 3115 3116 (*sc->sc_set_tim)(ni, set); 3117 3118 if ((ic->ic_flags & IEEE80211_F_TIMUPDATE) == 0) 3119 return; 3120 3121 ic->ic_flags &= ~IEEE80211_F_TIMUPDATE; 3122 3123 (void)wi_write_val(sc, WI_RID_SET_TIM, 3124 IEEE80211_AID(ni->ni_associd) | (set ? 0x8000 : 0)); 3125 } 3126 3127 STATIC int 3128 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate) 3129 { 3130 int error = 0; 3131 u_int16_t val[2]; 3132 3133 if (!sc->sc_enabled) 3134 return ENXIO; 3135 switch (sc->sc_firmware_type) { 3136 case WI_LUCENT: 3137 (void)wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0); 3138 break; 3139 case WI_INTERSIL: 3140 val[0] = htole16(chanmask); /* channel */ 3141 val[1] = htole16(txrate); /* tx rate */ 3142 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val)); 3143 break; 3144 case WI_SYMBOL: 3145 /* 3146 * XXX only supported on 3.x ? 3147 */ 3148 val[0] = htole16(BSCAN_BCAST | BSCAN_ONETIME); 3149 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ, 3150 val, sizeof(val[0])); 3151 break; 3152 } 3153 if (error == 0) { 3154 sc->sc_scan_timer = WI_SCAN_WAIT; 3155 sc->sc_if.if_timer = 1; 3156 DPRINTF(("wi_scan_ap: start scanning, " 3157 "chanmask 0x%x txrate 0x%x\n", chanmask, txrate)); 3158 } 3159 return error; 3160 } 3161 3162 STATIC void 3163 wi_scan_result(struct wi_softc *sc, int fid, int cnt) 3164 { 3165 #define N(a) (sizeof (a) / sizeof (a[0])) 3166 int i, naps, off, szbuf; 3167 struct wi_scan_header ws_hdr; /* Prism2 header */ 3168 struct wi_scan_data_p2 ws_dat; /* Prism2 scantable*/ 3169 struct wi_apinfo *ap; 3170 3171 off = sizeof(u_int16_t) * 2; 3172 memset(&ws_hdr, 0, sizeof(ws_hdr)); 3173 switch (sc->sc_firmware_type) { 3174 case WI_INTERSIL: 3175 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr)); 3176 off += sizeof(ws_hdr); 3177 szbuf = sizeof(struct wi_scan_data_p2); 3178 break; 3179 case WI_SYMBOL: 3180 szbuf = sizeof(struct wi_scan_data_p2) + 6; 3181 break; 3182 case WI_LUCENT: 3183 szbuf = sizeof(struct wi_scan_data); 3184 break; 3185 default: 3186 aprint_error_dev(&sc->sc_dev, "wi_scan_result: unknown firmware type %u\n", 3187 sc->sc_firmware_type); 3188 naps = 0; 3189 goto done; 3190 } 3191 naps = (cnt * 2 + 2 - off) / szbuf; 3192 if (naps > N(sc->sc_aps)) 3193 naps = N(sc->sc_aps); 3194 sc->sc_naps = naps; 3195 /* Read Data */ 3196 ap = sc->sc_aps; 3197 memset(&ws_dat, 0, sizeof(ws_dat)); 3198 for (i = 0; i < naps; i++, ap++) { 3199 wi_read_bap(sc, fid, off, &ws_dat, 3200 (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf)); 3201 DPRINTF2(("wi_scan_result: #%d: off %d bssid %s\n", i, off, 3202 ether_sprintf(ws_dat.wi_bssid))); 3203 off += szbuf; 3204 ap->scanreason = le16toh(ws_hdr.wi_reason); 3205 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid)); 3206 ap->channel = le16toh(ws_dat.wi_chid); 3207 ap->signal = le16toh(ws_dat.wi_signal); 3208 ap->noise = le16toh(ws_dat.wi_noise); 3209 ap->quality = ap->signal - ap->noise; 3210 ap->capinfo = le16toh(ws_dat.wi_capinfo); 3211 ap->interval = le16toh(ws_dat.wi_interval); 3212 ap->rate = le16toh(ws_dat.wi_rate); 3213 ap->namelen = le16toh(ws_dat.wi_namelen); 3214 if (ap->namelen > sizeof(ap->name)) 3215 ap->namelen = sizeof(ap->name); 3216 memcpy(ap->name, ws_dat.wi_name, ap->namelen); 3217 } 3218 done: 3219 /* Done scanning */ 3220 sc->sc_scan_timer = 0; 3221 DPRINTF(("wi_scan_result: scan complete: ap %d\n", naps)); 3222 #undef N 3223 } 3224 3225 STATIC void 3226 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi) 3227 { 3228 ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr), 3229 ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL 3230 : -1, 3231 rssi); 3232 printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n", 3233 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1), 3234 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence); 3235 printf(" rx_signal %u rx_rate %u rx_flow %u\n", 3236 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow); 3237 printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n", 3238 wh->wi_tx_rtry, wh->wi_tx_rate, 3239 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len)); 3240 printf(" ehdr dst %s src %s type 0x%x\n", 3241 ether_sprintf(wh->wi_ehdr.ether_dhost), 3242 ether_sprintf(wh->wi_ehdr.ether_shost), 3243 wh->wi_ehdr.ether_type); 3244 } 3245
Indexes created Fri Sep 26 08:10:20 GMT 2025