wi.c revision 1.208
1 /* $NetBSD: wi.c,v 1.208 2005/07/23 16:09:39 drochner 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1997, 1998, 1999 41 * Bill Paul <wpaul (at) ctr.columbia.edu>. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Bill Paul. 54 * 4. Neither the name of the author nor the names of any co-contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 62 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 63 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 64 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 65 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 66 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 67 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 68 * THE POSSIBILITY OF SUCH DAMAGE. 69 */ 70 71 /* 72 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver for NetBSD. 73 * 74 * Original FreeBSD driver written by Bill Paul <wpaul (at) ctr.columbia.edu> 75 * Electrical Engineering Department 76 * Columbia University, New York City 77 */ 78 79 /* 80 * The WaveLAN/IEEE adapter is the second generation of the WaveLAN 81 * from Lucent. Unlike the older cards, the new ones are programmed 82 * entirely via a firmware-driven controller called the Hermes. 83 * Unfortunately, Lucent will not release the Hermes programming manual 84 * without an NDA (if at all). What they do release is an API library 85 * called the HCF (Hardware Control Functions) which is supposed to 86 * do the device-specific operations of a device driver for you. The 87 * publically available version of the HCF library (the 'HCF Light') is 88 * a) extremely gross, b) lacks certain features, particularly support 89 * for 802.11 frames, and c) is contaminated by the GNU Public License. 90 * 91 * This driver does not use the HCF or HCF Light at all. Instead, it 92 * programs the Hermes controller directly, using information gleaned 93 * from the HCF Light code and corresponding documentation. 94 * 95 * This driver supports both the PCMCIA and ISA versions of the 96 * WaveLAN/IEEE cards. Note however that the ISA card isn't really 97 * anything of the sort: it's actually a PCMCIA bridge adapter 98 * that fits into an ISA slot, into which a PCMCIA WaveLAN card is 99 * inserted. Consequently, you need to use the pccard support for 100 * both the ISA and PCMCIA adapters. 101 */ 102 103 /* 104 * FreeBSD driver ported to NetBSD by Bill Sommerfeld in the back of the 105 * Oslo IETF plenary meeting. 106 */ 107 108 #include <sys/cdefs.h> 109 __KERNEL_RCSID(0, "$NetBSD: wi.c,v 1.208 2005/07/23 16:09:39 drochner Exp $"); 110 111 #define WI_HERMES_AUTOINC_WAR /* Work around data write autoinc bug. */ 112 #define WI_HERMES_STATS_WAR /* Work around stats counter bug. */ 113 #undef WI_HISTOGRAM 114 #undef WI_RING_DEBUG 115 #define STATIC static 116 117 #include "bpfilter.h" 118 119 #include <sys/param.h> 120 #include <sys/sysctl.h> 121 #include <sys/systm.h> 122 #include <sys/callout.h> 123 #include <sys/device.h> 124 #include <sys/socket.h> 125 #include <sys/mbuf.h> 126 #include <sys/ioctl.h> 127 #include <sys/kernel.h> /* for hz */ 128 #include <sys/proc.h> 129 130 #include <net/if.h> 131 #include <net/if_dl.h> 132 #include <net/if_llc.h> 133 #include <net/if_media.h> 134 #include <net/if_ether.h> 135 #include <net/route.h> 136 137 #include <net80211/ieee80211_netbsd.h> 138 #include <net80211/ieee80211_var.h> 139 #include <net80211/ieee80211_ioctl.h> 140 #include <net80211/ieee80211_radiotap.h> 141 #include <net80211/ieee80211_rssadapt.h> 142 143 #if NBPFILTER > 0 144 #include <net/bpf.h> 145 #include <net/bpfdesc.h> 146 #endif 147 148 #include <machine/bus.h> 149 150 #include <dev/ic/wi_ieee.h> 151 #include <dev/ic/wireg.h> 152 #include <dev/ic/wivar.h> 153 154 STATIC int wi_init(struct ifnet *); 155 STATIC void wi_stop(struct ifnet *, int); 156 STATIC void wi_start(struct ifnet *); 157 STATIC int wi_reset(struct wi_softc *); 158 STATIC void wi_watchdog(struct ifnet *); 159 STATIC int wi_ioctl(struct ifnet *, u_long, caddr_t); 160 STATIC int wi_media_change(struct ifnet *); 161 STATIC void wi_media_status(struct ifnet *, struct ifmediareq *); 162 163 STATIC struct ieee80211_node *wi_node_alloc(struct ieee80211_node_table *); 164 STATIC void wi_node_free(struct ieee80211_node *); 165 166 STATIC void wi_raise_rate(struct ieee80211com *, struct ieee80211_rssdesc *); 167 STATIC void wi_lower_rate(struct ieee80211com *, struct ieee80211_rssdesc *); 168 STATIC int wi_choose_rate(struct ieee80211com *, struct ieee80211_node *, 169 struct ieee80211_frame *, u_int); 170 STATIC void wi_rssadapt_updatestats_cb(void *, struct ieee80211_node *); 171 STATIC void wi_rssadapt_updatestats(void *); 172 STATIC void wi_rssdescs_init(struct wi_rssdesc (*)[], wi_rssdescq_t *); 173 STATIC void wi_rssdescs_reset(struct ieee80211com *, struct wi_rssdesc (*)[], 174 wi_rssdescq_t *, u_int8_t (*)[]); 175 STATIC void wi_sync_bssid(struct wi_softc *, u_int8_t new_bssid[]); 176 177 STATIC void wi_rx_intr(struct wi_softc *); 178 STATIC void wi_txalloc_intr(struct wi_softc *); 179 STATIC void wi_cmd_intr(struct wi_softc *); 180 STATIC void wi_tx_intr(struct wi_softc *); 181 STATIC void wi_tx_ex_intr(struct wi_softc *); 182 STATIC void wi_info_intr(struct wi_softc *); 183 184 STATIC int wi_key_alloc(struct ieee80211com *, const struct ieee80211_key *); 185 STATIC int wi_key_delete(struct ieee80211com *, const struct ieee80211_key *); 186 STATIC int wi_key_set(struct ieee80211com *, const struct ieee80211_key *, 187 const u_int8_t[IEEE80211_ADDR_LEN]); 188 STATIC void wi_key_update_begin(struct ieee80211com *); 189 STATIC void wi_key_update_end(struct ieee80211com *); 190 191 STATIC void wi_push_packet(struct wi_softc *); 192 STATIC int wi_get_cfg(struct ifnet *, u_long, caddr_t); 193 STATIC int wi_set_cfg(struct ifnet *, u_long, caddr_t); 194 STATIC int wi_cfg_txrate(struct wi_softc *); 195 STATIC int wi_write_txrate(struct wi_softc *, int); 196 STATIC int wi_write_wep(struct wi_softc *); 197 STATIC int wi_write_multi(struct wi_softc *); 198 STATIC int wi_alloc_fid(struct wi_softc *, int, int *); 199 STATIC void wi_read_nicid(struct wi_softc *); 200 STATIC int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); 201 202 STATIC int wi_cmd(struct wi_softc *, int, int, int, int); 203 STATIC int wi_cmd_start(struct wi_softc *, int, int, int, int); 204 STATIC int wi_cmd_wait(struct wi_softc *, int, int); 205 STATIC int wi_seek_bap(struct wi_softc *, int, int); 206 STATIC int wi_read_bap(struct wi_softc *, int, int, void *, int); 207 STATIC int wi_write_bap(struct wi_softc *, int, int, void *, int); 208 STATIC int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); 209 STATIC int wi_read_rid(struct wi_softc *, int, void *, int *); 210 STATIC int wi_write_rid(struct wi_softc *, int, void *, int); 211 212 STATIC int wi_newstate(struct ieee80211com *, enum ieee80211_state, int); 213 STATIC void wi_set_tim(struct ieee80211com *, struct ieee80211_node *, int); 214 215 STATIC int wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t); 216 STATIC void wi_scan_result(struct wi_softc *, int, int); 217 218 STATIC void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi); 219 STATIC void wi_mend_flags(struct wi_softc *, enum ieee80211_state); 220 221 static inline int 222 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) 223 { 224 225 val = htole16(val); 226 return wi_write_rid(sc, rid, &val, sizeof(val)); 227 } 228 229 static struct timeval lasttxerror; /* time of last tx error msg */ 230 static int curtxeps = 0; /* current tx error msgs/sec */ 231 static int wi_txerate = 0; /* tx error rate: max msgs/sec */ 232 233 #ifdef WI_DEBUG 234 #define WI_DEBUG_MAX 2 235 int wi_debug = 0; 236 237 #define DPRINTF(X) if (wi_debug) printf X 238 #define DPRINTF2(X) if (wi_debug > 1) printf X 239 #define IFF_DUMPPKTS(_ifp) \ 240 (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 241 static int wi_sysctl_verify_debug(SYSCTLFN_PROTO); 242 #else 243 #define DPRINTF(X) 244 #define DPRINTF2(X) 245 #define IFF_DUMPPKTS(_ifp) 0 246 #endif 247 248 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO | \ 249 WI_EV_TX | WI_EV_TX_EXC | WI_EV_CMD) 250 251 struct wi_card_ident 252 wi_card_ident[] = { 253 /* CARD_ID CARD_NAME FIRM_TYPE */ 254 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, 255 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, 256 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, 257 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, 258 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, 259 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, 260 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, 261 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, 262 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, 263 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, 264 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, 265 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, 266 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 267 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 268 { WI_NIC_3842_PCMCIA_ATM_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 269 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 270 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 271 { WI_NIC_3842_MINI_ATM_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 272 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 273 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 274 { WI_NIC_3842_PCI_ATM_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 275 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 276 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 277 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 278 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 279 { 0, NULL, 0 }, 280 }; 281 282 #ifndef _LKM 283 /* 284 * Setup sysctl(3) MIB, hw.wi.* 285 * 286 * TBD condition CTLFLAG_PERMANENT on being an LKM or not 287 */ 288 SYSCTL_SETUP(sysctl_wi, "sysctl wi(4) subtree setup") 289 { 290 int rc; 291 const struct sysctlnode *rnode; 292 #ifdef WI_DEBUG 293 const struct sysctlnode *cnode; 294 #endif /* WI_DEBUG */ 295 296 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 297 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 298 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 299 goto err; 300 301 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 302 CTLFLAG_PERMANENT, CTLTYPE_NODE, "wi", 303 "Lucent/Prism/Symbol 802.11 controls", 304 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 305 goto err; 306 307 #ifdef WI_DEBUG 308 /* control debugging printfs */ 309 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 310 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 311 "debug", SYSCTL_DESCR("Enable debugging output"), 312 wi_sysctl_verify_debug, 0, &wi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 313 goto err; 314 #endif /* WI_DEBUG */ 315 return; 316 err: 317 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 318 } 319 #endif 320 321 #ifdef WI_DEBUG 322 static int 323 wi_sysctl_verify(SYSCTLFN_ARGS, int lower, int upper) 324 { 325 int error, t; 326 struct sysctlnode node; 327 328 node = *rnode; 329 t = *(int*)rnode->sysctl_data; 330 node.sysctl_data = &t; 331 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 332 if (error || newp == NULL) 333 return (error); 334 335 if (t < lower || t > upper) 336 return (EINVAL); 337 338 *(int*)rnode->sysctl_data = t; 339 340 return (0); 341 } 342 343 static int 344 wi_sysctl_verify_debug(SYSCTLFN_ARGS) 345 { 346 return wi_sysctl_verify(SYSCTLFN_CALL(__UNCONST(rnode)), 347 0, WI_DEBUG_MAX); 348 } 349 #endif /* WI_DEBUG */ 350 351 STATIC int 352 wi_read_xrid(struct wi_softc *sc, int rid, void *buf, int ebuflen) 353 { 354 int buflen, rc; 355 356 buflen = ebuflen; 357 if ((rc = wi_read_rid(sc, rid, buf, &buflen)) != 0) 358 return rc; 359 360 if (buflen < ebuflen) { 361 #ifdef WI_DEBUG 362 printf("%s: rid=%#04x read %d, expected %d\n", __func__, 363 rid, buflen, ebuflen); 364 #endif 365 return -1; 366 } 367 return 0; 368 } 369 370 int 371 wi_attach(struct wi_softc *sc, const u_int8_t *macaddr) 372 { 373 struct ieee80211com *ic = &sc->sc_ic; 374 struct ifnet *ifp = &sc->sc_if; 375 int chan, nrate, buflen; 376 u_int16_t val, chanavail; 377 struct { 378 u_int16_t nrates; 379 char rates[IEEE80211_RATE_SIZE]; 380 } ratebuf; 381 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 382 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 383 }; 384 int s; 385 386 s = splnet(); 387 388 /* Make sure interrupts are disabled. */ 389 CSR_WRITE_2(sc, WI_INT_EN, 0); 390 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 391 392 sc->sc_invalid = 0; 393 394 /* Reset the NIC. */ 395 if (wi_reset(sc) != 0) { 396 sc->sc_invalid = 1; 397 splx(s); 398 return 1; 399 } 400 401 if (wi_read_xrid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, 402 IEEE80211_ADDR_LEN) != 0 || 403 IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) { 404 if (macaddr != NULL) 405 memcpy(ic->ic_myaddr, macaddr, IEEE80211_ADDR_LEN); 406 else { 407 printf(" could not get mac address, attach failed\n"); 408 splx(s); 409 return 1; 410 } 411 } 412 413 printf(" 802.11 address %s\n", ether_sprintf(ic->ic_myaddr)); 414 415 /* Read NIC identification */ 416 wi_read_nicid(sc); 417 418 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 419 ifp->if_softc = sc; 420 ifp->if_start = wi_start; 421 ifp->if_ioctl = wi_ioctl; 422 ifp->if_watchdog = wi_watchdog; 423 ifp->if_init = wi_init; 424 ifp->if_stop = wi_stop; 425 ifp->if_flags = 426 IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST | IFF_NOTRAILERS; 427 IFQ_SET_READY(&ifp->if_snd); 428 429 ic->ic_ifp = ifp; 430 ic->ic_phytype = IEEE80211_T_DS; 431 ic->ic_opmode = IEEE80211_M_STA; 432 ic->ic_caps = IEEE80211_C_AHDEMO; 433 ic->ic_state = IEEE80211_S_INIT; 434 ic->ic_max_aid = WI_MAX_AID; 435 436 /* Find available channel */ 437 if (wi_read_xrid(sc, WI_RID_CHANNEL_LIST, &chanavail, 438 sizeof(chanavail)) != 0) { 439 aprint_normal("%s: using default channel list\n", sc->sc_dev.dv_xname); 440 chanavail = htole16(0x1fff); /* assume 1-13 */ 441 } 442 for (chan = 16; chan > 0; chan--) { 443 if (!isset((u_int8_t*)&chanavail, chan - 1)) 444 continue; 445 ic->ic_ibss_chan = &ic->ic_channels[chan]; 446 ic->ic_channels[chan].ic_freq = 447 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); 448 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_B; 449 } 450 451 /* Find default IBSS channel */ 452 if (wi_read_xrid(sc, WI_RID_OWN_CHNL, &val, sizeof(val)) == 0) { 453 chan = le16toh(val); 454 if (isset((u_int8_t*)&chanavail, chan - 1)) 455 ic->ic_ibss_chan = &ic->ic_channels[chan]; 456 } 457 if (ic->ic_ibss_chan == NULL) { 458 aprint_error("%s: no available channel\n", sc->sc_dev.dv_xname); 459 return 1; 460 } 461 462 if (sc->sc_firmware_type == WI_LUCENT) { 463 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 464 } else { 465 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 466 wi_read_xrid(sc, WI_RID_DBM_ADJUST, &val, sizeof(val)) == 0) 467 sc->sc_dbm_offset = le16toh(val); 468 else 469 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 470 } 471 472 sc->sc_flags |= WI_FLAGS_RSSADAPTSTA; 473 474 /* 475 * Set flags based on firmware version. 476 */ 477 switch (sc->sc_firmware_type) { 478 case WI_LUCENT: 479 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE; 480 #ifdef WI_HERMES_AUTOINC_WAR 481 /* XXX: not confirmed, but never seen for recent firmware */ 482 if (sc->sc_sta_firmware_ver < 40000) { 483 sc->sc_flags |= WI_FLAGS_BUG_AUTOINC; 484 } 485 #endif 486 if (sc->sc_sta_firmware_ver >= 60000) 487 sc->sc_flags |= WI_FLAGS_HAS_MOR; 488 if (sc->sc_sta_firmware_ver >= 60006) { 489 ic->ic_caps |= IEEE80211_C_IBSS; 490 ic->ic_caps |= IEEE80211_C_MONITOR; 491 } 492 ic->ic_caps |= IEEE80211_C_PMGT; 493 sc->sc_ibss_port = 1; 494 break; 495 496 case WI_INTERSIL: 497 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR; 498 sc->sc_flags |= WI_FLAGS_HAS_ROAMING; 499 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE; 500 if (sc->sc_sta_firmware_ver > 10101) 501 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 502 if (sc->sc_sta_firmware_ver >= 800) { 503 if (sc->sc_sta_firmware_ver != 10402) 504 ic->ic_caps |= IEEE80211_C_HOSTAP; 505 ic->ic_caps |= IEEE80211_C_IBSS; 506 ic->ic_caps |= IEEE80211_C_MONITOR; 507 } 508 ic->ic_caps |= IEEE80211_C_PMGT; 509 sc->sc_ibss_port = 0; 510 sc->sc_alt_retry = 2; 511 break; 512 513 case WI_SYMBOL: 514 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY; 515 if (sc->sc_sta_firmware_ver >= 20000) 516 ic->ic_caps |= IEEE80211_C_IBSS; 517 sc->sc_ibss_port = 4; 518 break; 519 } 520 521 /* 522 * Find out if we support WEP on this card. 523 */ 524 if (wi_read_xrid(sc, WI_RID_WEP_AVAIL, &val, sizeof(val)) == 0 && 525 val != htole16(0)) 526 ic->ic_caps |= IEEE80211_C_WEP; 527 528 /* Find supported rates. */ 529 buflen = sizeof(ratebuf); 530 if (wi_read_rid(sc, WI_RID_DATA_RATES, &ratebuf, &buflen) == 0 && 531 buflen > 2) { 532 nrate = le16toh(ratebuf.nrates); 533 if (nrate > IEEE80211_RATE_SIZE) 534 nrate = IEEE80211_RATE_SIZE; 535 memcpy(ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates, 536 &ratebuf.rates[0], nrate); 537 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates = nrate; 538 } else { 539 aprint_error("%s: no supported rate list\n", sc->sc_dev.dv_xname); 540 return 1; 541 } 542 543 sc->sc_max_datalen = 2304; 544 sc->sc_rts_thresh = 2347; 545 sc->sc_frag_thresh = 2346; 546 sc->sc_system_scale = 1; 547 sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN; 548 sc->sc_roaming_mode = 1; 549 550 callout_init(&sc->sc_rssadapt_ch); 551 552 /* 553 * Call MI attach routines. 554 */ 555 if_attach(ifp); 556 ieee80211_ifattach(ic); 557 558 sc->sc_newstate = ic->ic_newstate; 559 sc->sc_set_tim = ic->ic_set_tim; 560 ic->ic_newstate = wi_newstate; 561 ic->ic_node_alloc = wi_node_alloc; 562 ic->ic_node_free = wi_node_free; 563 ic->ic_set_tim = wi_set_tim; 564 565 ic->ic_crypto.cs_key_alloc = wi_key_alloc; 566 ic->ic_crypto.cs_key_delete = wi_key_delete; 567 ic->ic_crypto.cs_key_set = wi_key_set; 568 ic->ic_crypto.cs_key_update_begin = wi_key_update_begin; 569 ic->ic_crypto.cs_key_update_end = wi_key_update_end; 570 571 ieee80211_media_init(ic, wi_media_change, wi_media_status); 572 573 #if NBPFILTER > 0 574 bpfattach2(ifp, DLT_IEEE802_11_RADIO, 575 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 576 #endif 577 578 memset(&sc->sc_rxtapu, 0, sizeof(sc->sc_rxtapu)); 579 sc->sc_rxtap.wr_ihdr.it_len = sizeof(sc->sc_rxtapu); 580 sc->sc_rxtap.wr_ihdr.it_present = WI_RX_RADIOTAP_PRESENT; 581 582 memset(&sc->sc_txtapu, 0, sizeof(sc->sc_txtapu)); 583 sc->sc_txtap.wt_ihdr.it_len = sizeof(sc->sc_txtapu); 584 sc->sc_txtap.wt_ihdr.it_present = WI_TX_RADIOTAP_PRESENT; 585 586 /* Attach is successful. */ 587 sc->sc_attached = 1; 588 589 splx(s); 590 ieee80211_announce(ic); 591 return 0; 592 } 593 594 int 595 wi_detach(struct wi_softc *sc) 596 { 597 struct ifnet *ifp = &sc->sc_if; 598 int s; 599 600 if (!sc->sc_attached) 601 return 0; 602 603 sc->sc_invalid = 1; 604 s = splnet(); 605 606 wi_stop(ifp, 1); 607 608 ieee80211_ifdetach(&sc->sc_ic); 609 if_detach(ifp); 610 splx(s); 611 return 0; 612 } 613 614 #ifdef __NetBSD__ 615 int 616 wi_activate(struct device *self, enum devact act) 617 { 618 struct wi_softc *sc = (struct wi_softc *)self; 619 int rv = 0, s; 620 621 s = splnet(); 622 switch (act) { 623 case DVACT_ACTIVATE: 624 rv = EOPNOTSUPP; 625 break; 626 627 case DVACT_DEACTIVATE: 628 if_deactivate(&sc->sc_if); 629 break; 630 } 631 splx(s); 632 return rv; 633 } 634 635 void 636 wi_power(struct wi_softc *sc, int why) 637 { 638 struct ifnet *ifp = &sc->sc_if; 639 int s; 640 641 s = splnet(); 642 switch (why) { 643 case PWR_SUSPEND: 644 case PWR_STANDBY: 645 wi_stop(ifp, 1); 646 break; 647 case PWR_RESUME: 648 if (ifp->if_flags & IFF_UP) { 649 wi_init(ifp); 650 (void)wi_intr(sc); 651 } 652 break; 653 case PWR_SOFTSUSPEND: 654 case PWR_SOFTSTANDBY: 655 case PWR_SOFTRESUME: 656 break; 657 } 658 splx(s); 659 } 660 #endif /* __NetBSD__ */ 661 662 void 663 wi_shutdown(struct wi_softc *sc) 664 { 665 struct ifnet *ifp = &sc->sc_if; 666 667 if (sc->sc_attached) 668 wi_stop(ifp, 1); 669 } 670 671 int 672 wi_intr(void *arg) 673 { 674 int i; 675 struct wi_softc *sc = arg; 676 struct ifnet *ifp = &sc->sc_if; 677 u_int16_t status; 678 679 if (sc->sc_enabled == 0 || 680 (sc->sc_dev.dv_flags & DVF_ACTIVE) == 0 || 681 (ifp->if_flags & IFF_RUNNING) == 0) 682 return 0; 683 684 if ((ifp->if_flags & IFF_UP) == 0) { 685 CSR_WRITE_2(sc, WI_INT_EN, 0); 686 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 687 return 1; 688 } 689 690 /* This is superfluous on Prism, but Lucent breaks if we 691 * do not disable interrupts. 692 */ 693 CSR_WRITE_2(sc, WI_INT_EN, 0); 694 695 /* maximum 10 loops per interrupt */ 696 for (i = 0; i < 10; i++) { 697 status = CSR_READ_2(sc, WI_EVENT_STAT); 698 #ifdef WI_DEBUG 699 if (wi_debug > 1) { 700 printf("%s: iter %d status %#04x\n", __func__, i, 701 status); 702 } 703 #endif /* WI_DEBUG */ 704 if ((status & WI_INTRS) == 0) 705 break; 706 707 sc->sc_status = status; 708 709 if (status & WI_EV_RX) 710 wi_rx_intr(sc); 711 712 if (status & WI_EV_ALLOC) 713 wi_txalloc_intr(sc); 714 715 if (status & WI_EV_TX) 716 wi_tx_intr(sc); 717 718 if (status & WI_EV_TX_EXC) 719 wi_tx_ex_intr(sc); 720 721 if (status & WI_EV_INFO) 722 wi_info_intr(sc); 723 724 CSR_WRITE_2(sc, WI_EVENT_ACK, sc->sc_status); 725 726 if (sc->sc_status & WI_EV_CMD) 727 wi_cmd_intr(sc); 728 729 if ((ifp->if_flags & IFF_OACTIVE) == 0 && 730 (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 && 731 !IFQ_IS_EMPTY(&ifp->if_snd)) 732 wi_start(ifp); 733 734 sc->sc_status = 0; 735 } 736 737 /* re-enable interrupts */ 738 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 739 740 sc->sc_status = 0; 741 742 return 1; 743 } 744 745 #define arraylen(a) (sizeof(a) / sizeof((a)[0])) 746 747 STATIC void 748 wi_rssdescs_init(struct wi_rssdesc (*rssd)[WI_NTXRSS], wi_rssdescq_t *rssdfree) 749 { 750 int i; 751 SLIST_INIT(rssdfree); 752 for (i = 0; i < arraylen(*rssd); i++) { 753 SLIST_INSERT_HEAD(rssdfree, &(*rssd)[i], rd_next); 754 } 755 } 756 757 STATIC void 758 wi_rssdescs_reset(struct ieee80211com *ic, struct wi_rssdesc (*rssd)[WI_NTXRSS], 759 wi_rssdescq_t *rssdfree, u_int8_t (*txpending)[IEEE80211_RATE_MAXSIZE]) 760 { 761 struct ieee80211_node *ni; 762 int i; 763 for (i = 0; i < arraylen(*rssd); i++) { 764 ni = (*rssd)[i].rd_desc.id_node; 765 (*rssd)[i].rd_desc.id_node = NULL; 766 if (ni != NULL && (ic->ic_ifp->if_flags & IFF_DEBUG) != 0) 767 printf("%s: cleaning outstanding rssadapt " 768 "descriptor for %s\n", 769 ic->ic_ifp->if_xname, ether_sprintf(ni->ni_macaddr)); 770 if (ni != NULL) 771 ieee80211_free_node(ni); 772 } 773 memset(*txpending, 0, sizeof(*txpending)); 774 wi_rssdescs_init(rssd, rssdfree); 775 } 776 777 STATIC int 778 wi_init(struct ifnet *ifp) 779 { 780 struct wi_softc *sc = ifp->if_softc; 781 struct ieee80211com *ic = &sc->sc_ic; 782 struct wi_joinreq join; 783 int i; 784 int error = 0, wasenabled; 785 786 DPRINTF(("wi_init: enabled %d\n", sc->sc_enabled)); 787 wasenabled = sc->sc_enabled; 788 if (!sc->sc_enabled) { 789 if ((error = (*sc->sc_enable)(sc)) != 0) 790 goto out; 791 sc->sc_enabled = 1; 792 } else 793 wi_stop(ifp, 0); 794 795 /* Symbol firmware cannot be initialized more than once */ 796 if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) 797 if ((error = wi_reset(sc)) != 0) 798 goto out; 799 800 /* common 802.11 configuration */ 801 ic->ic_flags &= ~IEEE80211_F_IBSSON; 802 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 803 switch (ic->ic_opmode) { 804 case IEEE80211_M_STA: 805 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS); 806 break; 807 case IEEE80211_M_IBSS: 808 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port); 809 ic->ic_flags |= IEEE80211_F_IBSSON; 810 break; 811 case IEEE80211_M_AHDEMO: 812 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC); 813 break; 814 case IEEE80211_M_HOSTAP: 815 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP); 816 break; 817 case IEEE80211_M_MONITOR: 818 if (sc->sc_firmware_type == WI_LUCENT) 819 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC); 820 wi_cmd(sc, WI_CMD_TEST | (WI_TEST_MONITOR << 8), 0, 0, 0); 821 break; 822 } 823 824 /* Intersil interprets this RID as joining ESS even in IBSS mode */ 825 if (sc->sc_firmware_type == WI_LUCENT && 826 (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0) 827 wi_write_val(sc, WI_RID_CREATE_IBSS, 1); 828 else 829 wi_write_val(sc, WI_RID_CREATE_IBSS, 0); 830 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 831 wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid, 832 ic->ic_des_esslen); 833 wi_write_val(sc, WI_RID_OWN_CHNL, 834 ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 835 wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen); 836 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 837 wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN); 838 if (ic->ic_caps & IEEE80211_C_PMGT) 839 wi_write_val(sc, WI_RID_PM_ENABLED, 840 (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0); 841 842 /* not yet common 802.11 configuration */ 843 wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen); 844 wi_write_val(sc, WI_RID_RTS_THRESH, sc->sc_rts_thresh); 845 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 846 wi_write_val(sc, WI_RID_FRAG_THRESH, sc->sc_frag_thresh); 847 848 /* driver specific 802.11 configuration */ 849 if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) 850 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale); 851 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 852 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode); 853 if (sc->sc_flags & WI_FLAGS_HAS_MOR) 854 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven); 855 wi_cfg_txrate(sc); 856 wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen); 857 858 #ifndef IEEE80211_NO_HOSTAP 859 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 860 sc->sc_firmware_type == WI_INTERSIL) { 861 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_lintval); 862 wi_write_val(sc, WI_RID_DTIM_PERIOD, 1); 863 } 864 #endif /* !IEEE80211_NO_HOSTAP */ 865 866 if (sc->sc_firmware_type == WI_INTERSIL) { 867 struct ieee80211_rateset *rs = 868 &ic->ic_sup_rates[IEEE80211_MODE_11B]; 869 u_int16_t basic = 0, supported = 0, rate; 870 871 for (i = 0; i < rs->rs_nrates; i++) { 872 switch (rs->rs_rates[i] & IEEE80211_RATE_VAL) { 873 case 2: 874 rate = 1; 875 break; 876 case 4: 877 rate = 2; 878 break; 879 case 11: 880 rate = 4; 881 break; 882 case 22: 883 rate = 8; 884 break; 885 default: 886 rate = 0; 887 break; 888 } 889 if (rs->rs_rates[i] & IEEE80211_RATE_BASIC) 890 basic |= rate; 891 supported |= rate; 892 } 893 wi_write_val(sc, WI_RID_BASIC_RATE, basic); 894 wi_write_val(sc, WI_RID_SUPPORT_RATE, supported); 895 wi_write_val(sc, WI_RID_ALT_RETRY_COUNT, sc->sc_alt_retry); 896 } 897 898 /* 899 * Initialize promisc mode. 900 * Being in Host-AP mode causes a great 901 * deal of pain if promiscuous mode is set. 902 * Therefore we avoid confusing the firmware 903 * and always reset promisc mode in Host-AP 904 * mode. Host-AP sees all the packets anyway. 905 */ 906 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 907 (ifp->if_flags & IFF_PROMISC) != 0) { 908 wi_write_val(sc, WI_RID_PROMISC, 1); 909 } else { 910 wi_write_val(sc, WI_RID_PROMISC, 0); 911 } 912 913 /* Configure WEP. */ 914 if (ic->ic_caps & IEEE80211_C_WEP) { 915 sc->sc_cnfauthmode = ic->ic_bss->ni_authmode; 916 wi_write_wep(sc); 917 } 918 919 /* Set multicast filter. */ 920 wi_write_multi(sc); 921 922 sc->sc_txalloc = 0; 923 sc->sc_txalloced = 0; 924 sc->sc_txqueue = 0; 925 sc->sc_txqueued = 0; 926 sc->sc_txstart = 0; 927 sc->sc_txstarted = 0; 928 929 if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) { 930 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 931 if (sc->sc_firmware_type == WI_SYMBOL) 932 sc->sc_buflen = 1585; /* XXX */ 933 for (i = 0; i < WI_NTXBUF; i++) { 934 error = wi_alloc_fid(sc, sc->sc_buflen, 935 &sc->sc_txd[i].d_fid); 936 if (error) { 937 printf("%s: tx buffer allocation failed\n", 938 sc->sc_dev.dv_xname); 939 goto out; 940 } 941 DPRINTF2(("wi_init: txbuf %d allocated %x\n", i, 942 sc->sc_txd[i].d_fid)); 943 ++sc->sc_txalloced; 944 } 945 } 946 947 wi_rssdescs_init(&sc->sc_rssd, &sc->sc_rssdfree); 948 949 /* Enable desired port */ 950 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 951 ifp->if_flags |= IFF_RUNNING; 952 ifp->if_flags &= ~IFF_OACTIVE; 953 ic->ic_state = IEEE80211_S_INIT; 954 955 if (ic->ic_opmode == IEEE80211_M_AHDEMO || 956 ic->ic_opmode == IEEE80211_M_IBSS || 957 ic->ic_opmode == IEEE80211_M_MONITOR || 958 ic->ic_opmode == IEEE80211_M_HOSTAP) 959 ieee80211_create_ibss(ic, ic->ic_ibss_chan); 960 961 /* Enable interrupts */ 962 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 963 964 #ifndef IEEE80211_NO_HOSTAP 965 if (!wasenabled && 966 ic->ic_opmode == IEEE80211_M_HOSTAP && 967 sc->sc_firmware_type == WI_INTERSIL) { 968 /* XXX: some card need to be re-enabled for hostap */ 969 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 970 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 971 } 972 #endif /* !IEEE80211_NO_HOSTAP */ 973 974 if (ic->ic_opmode == IEEE80211_M_STA && 975 ((ic->ic_flags & IEEE80211_F_DESBSSID) || 976 ic->ic_des_chan != IEEE80211_CHAN_ANYC)) { 977 memset(&join, 0, sizeof(join)); 978 if (ic->ic_flags & IEEE80211_F_DESBSSID) 979 IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid); 980 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC) 981 join.wi_chan = 982 htole16(ieee80211_chan2ieee(ic, ic->ic_des_chan)); 983 /* Lucent firmware does not support the JOIN RID. */ 984 if (sc->sc_firmware_type != WI_LUCENT) 985 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 986 } 987 988 out: 989 if (error) { 990 printf("%s: interface not running\n", sc->sc_dev.dv_xname); 991 wi_stop(ifp, 0); 992 } 993 DPRINTF(("wi_init: return %d\n", error)); 994 return error; 995 } 996 997 STATIC void 998 wi_txcmd_wait(struct wi_softc *sc) 999 { 1000 KASSERT(sc->sc_txcmds == 1); 1001 if (sc->sc_status & WI_EV_CMD) { 1002 sc->sc_status &= ~WI_EV_CMD; 1003 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1004 } else 1005 (void)wi_cmd_wait(sc, WI_CMD_TX | WI_RECLAIM, 0); 1006 } 1007 1008 STATIC void 1009 wi_stop(struct ifnet *ifp, int disable) 1010 { 1011 struct wi_softc *sc = ifp->if_softc; 1012 struct ieee80211com *ic = &sc->sc_ic; 1013 int s; 1014 1015 if (!sc->sc_enabled) 1016 return; 1017 1018 s = splnet(); 1019 1020 DPRINTF(("wi_stop: disable %d\n", disable)); 1021 1022 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1023 1024 /* wait for tx command completion (deassoc, deauth) */ 1025 while (sc->sc_txcmds > 0) { 1026 wi_txcmd_wait(sc); 1027 wi_cmd_intr(sc); 1028 } 1029 1030 /* TBD wait for deassoc, deauth tx completion? */ 1031 1032 if (!sc->sc_invalid) { 1033 CSR_WRITE_2(sc, WI_INT_EN, 0); 1034 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 1035 } 1036 1037 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1038 &sc->sc_txpending); 1039 1040 sc->sc_tx_timer = 0; 1041 sc->sc_scan_timer = 0; 1042 sc->sc_false_syns = 0; 1043 sc->sc_naps = 0; 1044 ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING); 1045 ifp->if_timer = 0; 1046 1047 if (disable) { 1048 if (sc->sc_disable) 1049 (*sc->sc_disable)(sc); 1050 sc->sc_enabled = 0; 1051 } 1052 splx(s); 1053 } 1054 1055 /* 1056 * Choose a data rate for a packet len bytes long that suits the packet 1057 * type and the wireless conditions. 1058 * 1059 * TBD Adapt fragmentation threshold. 1060 */ 1061 STATIC int 1062 wi_choose_rate(struct ieee80211com *ic, struct ieee80211_node *ni, 1063 struct ieee80211_frame *wh, u_int len) 1064 { 1065 struct wi_softc *sc = ic->ic_ifp->if_softc; 1066 struct wi_node *wn = (void*)ni; 1067 struct ieee80211_rssadapt *ra = &wn->wn_rssadapt; 1068 int do_not_adapt, i, rateidx, s; 1069 1070 do_not_adapt = (ic->ic_opmode != IEEE80211_M_HOSTAP) && 1071 (sc->sc_flags & WI_FLAGS_RSSADAPTSTA) == 0; 1072 1073 s = splnet(); 1074 1075 rateidx = ieee80211_rssadapt_choose(ra, &ni->ni_rates, wh, len, 1076 ic->ic_fixed_rate, 1077 ((ic->ic_ifp->if_flags & IFF_DEBUG) == 0) ? NULL : ic->ic_ifp->if_xname, 1078 do_not_adapt); 1079 1080 ni->ni_txrate = rateidx; 1081 1082 if (ic->ic_opmode != IEEE80211_M_HOSTAP) { 1083 /* choose the slowest pending rate so that we don't 1084 * accidentally send a packet on the MAC's queue 1085 * too fast. TBD find out if the MAC labels Tx 1086 * packets w/ rate when enqueued or dequeued. 1087 */ 1088 for (i = 0; i < rateidx && sc->sc_txpending[i] == 0; i++); 1089 rateidx = i; 1090 } 1091 1092 splx(s); 1093 return (rateidx); 1094 } 1095 1096 STATIC void 1097 wi_raise_rate(struct ieee80211com *ic, struct ieee80211_rssdesc *id) 1098 { 1099 struct wi_node *wn; 1100 if (id->id_node == NULL) 1101 return; 1102 1103 wn = (void*)id->id_node; 1104 ieee80211_rssadapt_raise_rate(ic, &wn->wn_rssadapt, id); 1105 } 1106 1107 STATIC void 1108 wi_lower_rate(struct ieee80211com *ic, struct ieee80211_rssdesc *id) 1109 { 1110 struct ieee80211_node *ni; 1111 struct wi_node *wn; 1112 int s; 1113 1114 s = splnet(); 1115 1116 if ((ni = id->id_node) == NULL) { 1117 DPRINTF(("wi_lower_rate: missing node\n")); 1118 goto out; 1119 } 1120 1121 wn = (void *)ni; 1122 1123 ieee80211_rssadapt_lower_rate(ic, ni, &wn->wn_rssadapt, id); 1124 out: 1125 splx(s); 1126 return; 1127 } 1128 1129 STATIC void 1130 wi_start(struct ifnet *ifp) 1131 { 1132 struct wi_softc *sc = ifp->if_softc; 1133 struct ieee80211com *ic = &sc->sc_ic; 1134 struct ether_header *eh; 1135 struct ieee80211_node *ni; 1136 struct ieee80211_frame *wh; 1137 struct ieee80211_rateset *rs; 1138 struct wi_rssdesc *rd; 1139 struct ieee80211_rssdesc *id; 1140 struct mbuf *m0; 1141 struct wi_frame frmhdr; 1142 int cur, fid, off, rateidx; 1143 1144 if (!sc->sc_enabled || sc->sc_invalid) 1145 return; 1146 if (sc->sc_flags & WI_FLAGS_OUTRANGE) 1147 return; 1148 1149 memset(&frmhdr, 0, sizeof(frmhdr)); 1150 cur = sc->sc_txqueue; 1151 for (;;) { 1152 ni = ic->ic_bss; 1153 if (sc->sc_txalloced == 0 || SLIST_EMPTY(&sc->sc_rssdfree)) { 1154 ifp->if_flags |= IFF_OACTIVE; 1155 break; 1156 } 1157 if (!IF_IS_EMPTY(&ic->ic_mgtq)) { 1158 IF_DEQUEUE(&ic->ic_mgtq, m0); 1159 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1160 (caddr_t)&frmhdr.wi_ehdr); 1161 frmhdr.wi_ehdr.ether_type = 0; 1162 wh = mtod(m0, struct ieee80211_frame *); 1163 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; 1164 m0->m_pkthdr.rcvif = NULL; 1165 } else if (ic->ic_state == IEEE80211_S_RUN) { 1166 IFQ_POLL(&ifp->if_snd, m0); 1167 if (m0 == NULL) 1168 break; 1169 IFQ_DEQUEUE(&ifp->if_snd, m0); 1170 ifp->if_opackets++; 1171 m_copydata(m0, 0, ETHER_HDR_LEN, 1172 (caddr_t)&frmhdr.wi_ehdr); 1173 #if NBPFILTER > 0 1174 if (ifp->if_bpf) 1175 bpf_mtap(ifp->if_bpf, m0); 1176 #endif 1177 1178 eh = mtod(m0, struct ether_header *); 1179 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1180 if (ni == NULL) { 1181 ifp->if_oerrors++; 1182 continue; 1183 } 1184 if ((ni->ni_flags & IEEE80211_NODE_PWR_MGT) && 1185 (m0->m_flags & M_PWR_SAV) == 0) { 1186 ieee80211_pwrsave(ic, ni, m0); 1187 goto next; 1188 } 1189 if ((m0 = ieee80211_encap(ic, m0, ni)) == NULL) { 1190 ieee80211_free_node(ni); 1191 ifp->if_oerrors++; 1192 continue; 1193 } 1194 wh = mtod(m0, struct ieee80211_frame *); 1195 } else 1196 break; 1197 #if NBPFILTER > 0 1198 if (ic->ic_rawbpf) 1199 bpf_mtap(ic->ic_rawbpf, m0); 1200 #endif 1201 frmhdr.wi_tx_ctl = 1202 htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX|WI_TXCNTL_TX_OK); 1203 #ifndef IEEE80211_NO_HOSTAP 1204 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 1205 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1206 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 1207 (wh->i_fc[1] & IEEE80211_FC1_WEP)) { 1208 if (ieee80211_crypto_encap(ic, ni, m0) == NULL) { 1209 m_freem(m0); 1210 ifp->if_oerrors++; 1211 goto next; 1212 } 1213 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1214 } 1215 #endif /* !IEEE80211_NO_HOSTAP */ 1216 1217 rateidx = wi_choose_rate(ic, ni, wh, m0->m_pkthdr.len); 1218 rs = &ni->ni_rates; 1219 1220 #if NBPFILTER > 0 1221 if (sc->sc_drvbpf) { 1222 struct wi_tx_radiotap_header *tap = &sc->sc_txtap; 1223 1224 tap->wt_rate = rs->rs_rates[rateidx]; 1225 tap->wt_chan_freq = 1226 htole16(ic->ic_bss->ni_chan->ic_freq); 1227 tap->wt_chan_flags = 1228 htole16(ic->ic_bss->ni_chan->ic_flags); 1229 /* TBD tap->wt_flags */ 1230 1231 bpf_mtap2(sc->sc_drvbpf, tap, tap->wt_ihdr.it_len, m0); 1232 } 1233 #endif 1234 1235 rd = SLIST_FIRST(&sc->sc_rssdfree); 1236 id = &rd->rd_desc; 1237 id->id_len = m0->m_pkthdr.len; 1238 id->id_rateidx = ni->ni_txrate; 1239 id->id_rssi = ni->ni_rssi; 1240 1241 frmhdr.wi_tx_idx = rd - sc->sc_rssd; 1242 1243 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 1244 frmhdr.wi_tx_rate = 5 * (rs->rs_rates[rateidx] & 1245 IEEE80211_RATE_VAL); 1246 else if (sc->sc_flags & WI_FLAGS_RSSADAPTSTA) 1247 (void)wi_write_txrate(sc, rs->rs_rates[rateidx]); 1248 1249 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1250 (caddr_t)&frmhdr.wi_whdr); 1251 m_adj(m0, sizeof(struct ieee80211_frame)); 1252 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1253 if (IFF_DUMPPKTS(ifp)) 1254 wi_dump_pkt(&frmhdr, ni, -1); 1255 fid = sc->sc_txd[cur].d_fid; 1256 off = sizeof(frmhdr); 1257 if (wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0 || 1258 wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0) { 1259 printf("%s: %s write fid %x failed\n", 1260 sc->sc_dev.dv_xname, __func__, fid); 1261 ifp->if_oerrors++; 1262 m_freem(m0); 1263 goto next; 1264 } 1265 m_freem(m0); 1266 sc->sc_txpending[ni->ni_txrate]++; 1267 --sc->sc_txalloced; 1268 if (sc->sc_txqueued++ == 0) { 1269 #ifdef DIAGNOSTIC 1270 if (cur != sc->sc_txstart) 1271 printf("%s: ring is desynchronized\n", 1272 sc->sc_dev.dv_xname); 1273 #endif 1274 wi_push_packet(sc); 1275 } else { 1276 #ifdef WI_RING_DEBUG 1277 printf("%s: queue %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1278 sc->sc_dev.dv_xname, fid, 1279 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1280 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1281 #endif 1282 } 1283 sc->sc_txqueue = cur = (cur + 1) % WI_NTXBUF; 1284 SLIST_REMOVE_HEAD(&sc->sc_rssdfree, rd_next); 1285 id->id_node = ni; 1286 continue; 1287 next: 1288 if (ni != NULL) 1289 ieee80211_free_node(ni); 1290 } 1291 } 1292 1293 1294 STATIC int 1295 wi_reset(struct wi_softc *sc) 1296 { 1297 int i, error; 1298 1299 DPRINTF(("wi_reset\n")); 1300 1301 if (sc->sc_reset) 1302 (*sc->sc_reset)(sc); 1303 1304 error = 0; 1305 for (i = 0; i < 5; i++) { 1306 if (sc->sc_invalid) 1307 return ENXIO; 1308 DELAY(20*1000); /* XXX: way too long! */ 1309 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0) 1310 break; 1311 } 1312 if (error) { 1313 printf("%s: init failed\n", sc->sc_dev.dv_xname); 1314 return error; 1315 } 1316 CSR_WRITE_2(sc, WI_INT_EN, 0); 1317 CSR_WRITE_2(sc, WI_EVENT_ACK, ~0); 1318 1319 /* Calibrate timer. */ 1320 wi_write_val(sc, WI_RID_TICK_TIME, 0); 1321 return 0; 1322 } 1323 1324 STATIC void 1325 wi_watchdog(struct ifnet *ifp) 1326 { 1327 struct wi_softc *sc = ifp->if_softc; 1328 1329 ifp->if_timer = 0; 1330 if (!sc->sc_enabled) 1331 return; 1332 1333 if (sc->sc_tx_timer) { 1334 if (--sc->sc_tx_timer == 0) { 1335 printf("%s: device timeout\n", ifp->if_xname); 1336 ifp->if_oerrors++; 1337 wi_init(ifp); 1338 return; 1339 } 1340 ifp->if_timer = 1; 1341 } 1342 1343 if (sc->sc_scan_timer) { 1344 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT && 1345 sc->sc_firmware_type == WI_INTERSIL) { 1346 DPRINTF(("wi_watchdog: inquire scan\n")); 1347 wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0); 1348 } 1349 if (sc->sc_scan_timer) 1350 ifp->if_timer = 1; 1351 } 1352 1353 /* TODO: rate control */ 1354 ieee80211_watchdog(&sc->sc_ic); 1355 } 1356 1357 STATIC int 1358 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1359 { 1360 struct wi_softc *sc = ifp->if_softc; 1361 struct ieee80211com *ic = &sc->sc_ic; 1362 struct ifreq *ifr = (struct ifreq *)data; 1363 int s, error = 0; 1364 1365 if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0) 1366 return ENXIO; 1367 1368 s = splnet(); 1369 1370 switch (cmd) { 1371 case SIOCSIFFLAGS: 1372 /* 1373 * Can't do promisc and hostap at the same time. If all that's 1374 * changing is the promisc flag, try to short-circuit a call to 1375 * wi_init() by just setting PROMISC in the hardware. 1376 */ 1377 if (ifp->if_flags & IFF_UP) { 1378 if (sc->sc_enabled) { 1379 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1380 (ifp->if_flags & IFF_PROMISC) != 0) 1381 wi_write_val(sc, WI_RID_PROMISC, 1); 1382 else 1383 wi_write_val(sc, WI_RID_PROMISC, 0); 1384 } else 1385 error = wi_init(ifp); 1386 } else if (sc->sc_enabled) 1387 wi_stop(ifp, 1); 1388 break; 1389 case SIOCSIFMEDIA: 1390 case SIOCGIFMEDIA: 1391 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1392 break; 1393 case SIOCADDMULTI: 1394 case SIOCDELMULTI: 1395 error = (cmd == SIOCADDMULTI) ? 1396 ether_addmulti(ifr, &sc->sc_ec) : 1397 ether_delmulti(ifr, &sc->sc_ec); 1398 if (error == ENETRESET) { 1399 if (ifp->if_flags & IFF_RUNNING) { 1400 /* do not rescan */ 1401 error = wi_write_multi(sc); 1402 } else 1403 error = 0; 1404 } 1405 break; 1406 case SIOCGIFGENERIC: 1407 error = wi_get_cfg(ifp, cmd, data); 1408 break; 1409 case SIOCSIFGENERIC: 1410 error = suser(curproc->p_ucred, &curproc->p_acflag); 1411 if (error) 1412 break; 1413 error = wi_set_cfg(ifp, cmd, data); 1414 if (error == ENETRESET) { 1415 if (ifp->if_flags & IFF_RUNNING) 1416 error = wi_init(ifp); 1417 else 1418 error = 0; 1419 } 1420 break; 1421 case SIOCS80211BSSID: 1422 if (sc->sc_firmware_type == WI_LUCENT) { 1423 error = ENODEV; 1424 break; 1425 } 1426 /* fall through */ 1427 default: 1428 ic->ic_flags |= sc->sc_ic_flags; 1429 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1430 sc->sc_ic_flags = ic->ic_flags & IEEE80211_F_DROPUNENC; 1431 if (error == ENETRESET) { 1432 if (sc->sc_enabled) 1433 error = wi_init(ifp); 1434 else 1435 error = 0; 1436 } 1437 break; 1438 } 1439 wi_mend_flags(sc, ic->ic_state); 1440 splx(s); 1441 return error; 1442 } 1443 1444 STATIC int 1445 wi_media_change(struct ifnet *ifp) 1446 { 1447 struct wi_softc *sc = ifp->if_softc; 1448 struct ieee80211com *ic = &sc->sc_ic; 1449 int error; 1450 1451 error = ieee80211_media_change(ifp); 1452 if (error == ENETRESET) { 1453 if (sc->sc_enabled) 1454 error = wi_init(ifp); 1455 else 1456 error = 0; 1457 } 1458 ifp->if_baudrate = ifmedia_baudrate(ic->ic_media.ifm_cur->ifm_media); 1459 1460 return error; 1461 } 1462 1463 STATIC void 1464 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1465 { 1466 struct wi_softc *sc = ifp->if_softc; 1467 struct ieee80211com *ic = &sc->sc_ic; 1468 u_int16_t val; 1469 int rate; 1470 1471 if (sc->sc_enabled == 0) { 1472 imr->ifm_active = IFM_IEEE80211 | IFM_NONE; 1473 imr->ifm_status = 0; 1474 return; 1475 } 1476 1477 imr->ifm_status = IFM_AVALID; 1478 imr->ifm_active = IFM_IEEE80211; 1479 if (ic->ic_state == IEEE80211_S_RUN && 1480 (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0) 1481 imr->ifm_status |= IFM_ACTIVE; 1482 if (wi_read_xrid(sc, WI_RID_CUR_TX_RATE, &val, sizeof(val)) == 0) { 1483 /* convert to 802.11 rate */ 1484 val = le16toh(val); 1485 rate = val * 2; 1486 if (sc->sc_firmware_type == WI_LUCENT) { 1487 if (rate == 10) 1488 rate = 11; /* 5.5Mbps */ 1489 } else { 1490 if (rate == 4*2) 1491 rate = 11; /* 5.5Mbps */ 1492 else if (rate == 8*2) 1493 rate = 22; /* 11Mbps */ 1494 } 1495 } else 1496 rate = 0; 1497 imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 1498 switch (ic->ic_opmode) { 1499 case IEEE80211_M_STA: 1500 break; 1501 case IEEE80211_M_IBSS: 1502 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1503 break; 1504 case IEEE80211_M_AHDEMO: 1505 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 1506 break; 1507 case IEEE80211_M_HOSTAP: 1508 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1509 break; 1510 case IEEE80211_M_MONITOR: 1511 imr->ifm_active |= IFM_IEEE80211_MONITOR; 1512 break; 1513 } 1514 } 1515 1516 STATIC struct ieee80211_node * 1517 wi_node_alloc(struct ieee80211_node_table *nt) 1518 { 1519 struct wi_node *wn = 1520 malloc(sizeof(struct wi_node), M_DEVBUF, M_NOWAIT | M_ZERO); 1521 return wn ? &wn->wn_node : NULL; 1522 } 1523 1524 STATIC void 1525 wi_node_free(struct ieee80211_node *ni) 1526 { 1527 struct wi_softc *sc = ni->ni_ic->ic_ifp->if_softc; 1528 int i; 1529 1530 for (i = 0; i < WI_NTXRSS; i++) { 1531 if (sc->sc_rssd[i].rd_desc.id_node == ni) 1532 sc->sc_rssd[i].rd_desc.id_node = NULL; 1533 } 1534 free(ni, M_DEVBUF); 1535 } 1536 1537 STATIC void 1538 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1539 { 1540 struct ieee80211com *ic = &sc->sc_ic; 1541 struct ieee80211_node *ni = ic->ic_bss; 1542 struct ifnet *ifp = &sc->sc_if; 1543 1544 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1545 return; 1546 1547 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid))); 1548 DPRINTF(("%s ?\n", ether_sprintf(new_bssid))); 1549 1550 /* In promiscuous mode, the BSSID field is not a reliable 1551 * indicator of the firmware's BSSID. Damp spurious 1552 * change-of-BSSID indications. 1553 */ 1554 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1555 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1556 WI_MAX_FALSE_SYNS)) 1557 return; 1558 1559 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1560 /* 1561 * XXX hack; we should create a new node with the new bssid 1562 * and replace the existing ic_bss with it but since we don't 1563 * process management frames to collect state we cheat by 1564 * reusing the existing node as we know wi_newstate will be 1565 * called and it will overwrite the node state. 1566 */ 1567 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1568 } 1569 1570 static __inline void 1571 wi_rssadapt_input(struct ieee80211com *ic, struct ieee80211_node *ni, 1572 struct ieee80211_frame *wh, int rssi) 1573 { 1574 struct wi_node *wn; 1575 1576 if (ni == NULL) { 1577 printf("%s: null node", __func__); 1578 return; 1579 } 1580 1581 wn = (void*)ni; 1582 ieee80211_rssadapt_input(ic, ni, &wn->wn_rssadapt, rssi); 1583 } 1584 1585 STATIC void 1586 wi_rx_intr(struct wi_softc *sc) 1587 { 1588 struct ieee80211com *ic = &sc->sc_ic; 1589 struct ifnet *ifp = &sc->sc_if; 1590 struct ieee80211_node *ni; 1591 struct wi_frame frmhdr; 1592 struct mbuf *m; 1593 struct ieee80211_frame *wh; 1594 int fid, len, off, rssi; 1595 u_int8_t dir; 1596 u_int16_t status; 1597 u_int32_t rstamp; 1598 1599 fid = CSR_READ_2(sc, WI_RX_FID); 1600 1601 /* First read in the frame header */ 1602 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1603 printf("%s: %s read fid %x failed\n", sc->sc_dev.dv_xname, 1604 __func__, fid); 1605 ifp->if_ierrors++; 1606 return; 1607 } 1608 1609 if (IFF_DUMPPKTS(ifp)) 1610 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal); 1611 1612 /* 1613 * Drop undecryptable or packets with receive errors here 1614 */ 1615 status = le16toh(frmhdr.wi_status); 1616 if ((status & WI_STAT_ERRSTAT) != 0 && 1617 ic->ic_opmode != IEEE80211_M_MONITOR) { 1618 ifp->if_ierrors++; 1619 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1620 return; 1621 } 1622 rssi = frmhdr.wi_rx_signal; 1623 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1624 le16toh(frmhdr.wi_rx_tstamp1); 1625 1626 len = le16toh(frmhdr.wi_dat_len); 1627 off = ALIGN(sizeof(struct ieee80211_frame)); 1628 1629 /* Sometimes the PRISM2.x returns bogusly large frames. Except 1630 * in monitor mode, just throw them away. 1631 */ 1632 if (off + len > MCLBYTES) { 1633 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1634 ifp->if_ierrors++; 1635 DPRINTF(("wi_rx_intr: oversized packet\n")); 1636 return; 1637 } else 1638 len = 0; 1639 } 1640 1641 MGETHDR(m, M_DONTWAIT, MT_DATA); 1642 if (m == NULL) { 1643 ifp->if_ierrors++; 1644 DPRINTF(("wi_rx_intr: MGET failed\n")); 1645 return; 1646 } 1647 if (off + len > MHLEN) { 1648 MCLGET(m, M_DONTWAIT); 1649 if ((m->m_flags & M_EXT) == 0) { 1650 m_freem(m); 1651 ifp->if_ierrors++; 1652 DPRINTF(("wi_rx_intr: MCLGET failed\n")); 1653 return; 1654 } 1655 } 1656 1657 m->m_data += off - sizeof(struct ieee80211_frame); 1658 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1659 wi_read_bap(sc, fid, sizeof(frmhdr), 1660 m->m_data + sizeof(struct ieee80211_frame), len); 1661 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1662 m->m_pkthdr.rcvif = ifp; 1663 1664 wh = mtod(m, struct ieee80211_frame *); 1665 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1666 /* 1667 * WEP is decrypted by hardware. Clear WEP bit 1668 * header for ieee80211_input(). 1669 */ 1670 wh->i_fc[1] &= ~IEEE80211_FC1_WEP; 1671 } 1672 #if NBPFILTER > 0 1673 if (sc->sc_drvbpf) { 1674 struct wi_rx_radiotap_header *tap = &sc->sc_rxtap; 1675 1676 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1677 tap->wr_antsignal = frmhdr.wi_rx_signal; 1678 tap->wr_antnoise = frmhdr.wi_rx_silence; 1679 tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 1680 tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 1681 if (frmhdr.wi_status & WI_STAT_PCF) 1682 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1683 1684 /* XXX IEEE80211_RADIOTAP_F_WEP */ 1685 bpf_mtap2(sc->sc_drvbpf, tap, tap->wr_ihdr.it_len, m); 1686 } 1687 #endif 1688 1689 /* synchronize driver's BSSID with firmware's BSSID */ 1690 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1691 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1692 wi_sync_bssid(sc, wh->i_addr3); 1693 1694 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1695 1696 ieee80211_input(ic, m, ni, rssi, rstamp); 1697 1698 wi_rssadapt_input(ic, ni, wh, rssi); 1699 1700 /* 1701 * The frame may have caused the node to be marked for 1702 * reclamation (e.g. in response to a DEAUTH message) 1703 * so use release_node here instead of unref_node. 1704 */ 1705 ieee80211_free_node(ni); 1706 } 1707 1708 STATIC void 1709 wi_tx_ex_intr(struct wi_softc *sc) 1710 { 1711 struct ieee80211com *ic = &sc->sc_ic; 1712 struct ifnet *ifp = &sc->sc_if; 1713 struct ieee80211_node *ni; 1714 struct ieee80211_rssdesc *id; 1715 struct wi_rssdesc *rssd; 1716 struct wi_frame frmhdr; 1717 int fid; 1718 u_int16_t status; 1719 1720 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1721 /* Read in the frame header */ 1722 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { 1723 printf("%s: %s read fid %x failed\n", sc->sc_dev.dv_xname, 1724 __func__, fid); 1725 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1726 &sc->sc_txpending); 1727 goto out; 1728 } 1729 1730 if (frmhdr.wi_tx_idx >= WI_NTXRSS) { 1731 printf("%s: %s bad idx %02x\n", 1732 sc->sc_dev.dv_xname, __func__, frmhdr.wi_tx_idx); 1733 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1734 &sc->sc_txpending); 1735 goto out; 1736 } 1737 1738 status = le16toh(frmhdr.wi_status); 1739 1740 /* 1741 * Spontaneous station disconnects appear as xmit 1742 * errors. Don't announce them and/or count them 1743 * as an output error. 1744 */ 1745 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1746 printf("%s: tx failed", sc->sc_dev.dv_xname); 1747 if (status & WI_TXSTAT_RET_ERR) 1748 printf(", retry limit exceeded"); 1749 if (status & WI_TXSTAT_AGED_ERR) 1750 printf(", max transmit lifetime exceeded"); 1751 if (status & WI_TXSTAT_DISCONNECT) 1752 printf(", port disconnected"); 1753 if (status & WI_TXSTAT_FORM_ERR) 1754 printf(", invalid format (data len %u src %s)", 1755 le16toh(frmhdr.wi_dat_len), 1756 ether_sprintf(frmhdr.wi_ehdr.ether_shost)); 1757 if (status & ~0xf) 1758 printf(", status=0x%x", status); 1759 printf("\n"); 1760 } 1761 ifp->if_oerrors++; 1762 rssd = &sc->sc_rssd[frmhdr.wi_tx_idx]; 1763 id = &rssd->rd_desc; 1764 if ((status & WI_TXSTAT_RET_ERR) != 0) 1765 wi_lower_rate(ic, id); 1766 1767 ni = id->id_node; 1768 id->id_node = NULL; 1769 1770 if (ni == NULL) { 1771 printf("%s: %s null node, rssdesc %02x\n", 1772 sc->sc_dev.dv_xname, __func__, frmhdr.wi_tx_idx); 1773 goto out; 1774 } 1775 1776 if (sc->sc_txpending[id->id_rateidx]-- == 0) { 1777 printf("%s: %s txpending[%i] wraparound", sc->sc_dev.dv_xname, 1778 __func__, id->id_rateidx); 1779 sc->sc_txpending[id->id_rateidx] = 0; 1780 } 1781 if (ni != NULL) 1782 ieee80211_free_node(ni); 1783 SLIST_INSERT_HEAD(&sc->sc_rssdfree, rssd, rd_next); 1784 out: 1785 ifp->if_flags &= ~IFF_OACTIVE; 1786 } 1787 1788 STATIC void 1789 wi_txalloc_intr(struct wi_softc *sc) 1790 { 1791 int fid, cur; 1792 1793 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1794 1795 cur = sc->sc_txalloc; 1796 #ifdef DIAGNOSTIC 1797 if (sc->sc_txstarted == 0) { 1798 printf("%s: spurious alloc %x != %x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1799 sc->sc_dev.dv_xname, fid, sc->sc_txd[cur].d_fid, cur, 1800 sc->sc_txqueue, sc->sc_txstart, sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1801 return; 1802 } 1803 #endif 1804 --sc->sc_txstarted; 1805 ++sc->sc_txalloced; 1806 sc->sc_txd[cur].d_fid = fid; 1807 sc->sc_txalloc = (cur + 1) % WI_NTXBUF; 1808 #ifdef WI_RING_DEBUG 1809 printf("%s: alloc %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1810 sc->sc_dev.dv_xname, fid, 1811 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1812 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1813 #endif 1814 } 1815 1816 STATIC void 1817 wi_cmd_intr(struct wi_softc *sc) 1818 { 1819 struct ifnet *ifp = &sc->sc_if; 1820 1821 if (sc->sc_invalid) 1822 return; 1823 #ifdef WI_DEBUG 1824 if (wi_debug > 1) 1825 printf("%s: %d txcmds outstanding\n", __func__, sc->sc_txcmds); 1826 #endif 1827 KASSERT(sc->sc_txcmds > 0); 1828 1829 --sc->sc_txcmds; 1830 1831 if (--sc->sc_txqueued == 0) { 1832 sc->sc_tx_timer = 0; 1833 ifp->if_flags &= ~IFF_OACTIVE; 1834 #ifdef WI_RING_DEBUG 1835 printf("%s: cmd , alloc %d queue %d start %d alloced %d queued %d started %d\n", 1836 sc->sc_dev.dv_xname, 1837 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1838 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1839 #endif 1840 } else 1841 wi_push_packet(sc); 1842 } 1843 1844 STATIC void 1845 wi_push_packet(struct wi_softc *sc) 1846 { 1847 struct ifnet *ifp = &sc->sc_if; 1848 int cur, fid; 1849 1850 cur = sc->sc_txstart; 1851 fid = sc->sc_txd[cur].d_fid; 1852 1853 KASSERT(sc->sc_txcmds == 0); 1854 1855 if (wi_cmd_start(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1856 printf("%s: xmit failed\n", sc->sc_dev.dv_xname); 1857 /* XXX ring might have a hole */ 1858 } 1859 1860 if (sc->sc_txcmds++ > 0) 1861 printf("%s: %d tx cmds pending!!!\n", __func__, sc->sc_txcmds); 1862 1863 ++sc->sc_txstarted; 1864 #ifdef DIAGNOSTIC 1865 if (sc->sc_txstarted > WI_NTXBUF) 1866 printf("%s: too many buffers started\n", sc->sc_dev.dv_xname); 1867 #endif 1868 sc->sc_txstart = (cur + 1) % WI_NTXBUF; 1869 sc->sc_tx_timer = 5; 1870 ifp->if_timer = 1; 1871 #ifdef WI_RING_DEBUG 1872 printf("%s: push %04x, alloc %d queue %d start %d alloced %d queued %d started %d\n", 1873 sc->sc_dev.dv_xname, fid, 1874 sc->sc_txalloc, sc->sc_txqueue, sc->sc_txstart, 1875 sc->sc_txalloced, sc->sc_txqueued, sc->sc_txstarted); 1876 #endif 1877 } 1878 1879 STATIC void 1880 wi_tx_intr(struct wi_softc *sc) 1881 { 1882 struct ieee80211com *ic = &sc->sc_ic; 1883 struct ifnet *ifp = &sc->sc_if; 1884 struct ieee80211_node *ni; 1885 struct ieee80211_rssdesc *id; 1886 struct wi_rssdesc *rssd; 1887 struct wi_frame frmhdr; 1888 int fid; 1889 1890 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1891 /* Read in the frame header */ 1892 if (wi_read_bap(sc, fid, offsetof(struct wi_frame, wi_tx_swsup2), 1893 &frmhdr.wi_tx_swsup2, 2) != 0) { 1894 printf("%s: %s read fid %x failed\n", sc->sc_dev.dv_xname, 1895 __func__, fid); 1896 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1897 &sc->sc_txpending); 1898 goto out; 1899 } 1900 1901 if (frmhdr.wi_tx_idx >= WI_NTXRSS) { 1902 printf("%s: %s bad idx %02x\n", 1903 sc->sc_dev.dv_xname, __func__, frmhdr.wi_tx_idx); 1904 wi_rssdescs_reset(ic, &sc->sc_rssd, &sc->sc_rssdfree, 1905 &sc->sc_txpending); 1906 goto out; 1907 } 1908 1909 rssd = &sc->sc_rssd[frmhdr.wi_tx_idx]; 1910 id = &rssd->rd_desc; 1911 wi_raise_rate(ic, id); 1912 1913 ni = id->id_node; 1914 id->id_node = NULL; 1915 1916 if (ni == NULL) { 1917 printf("%s: %s null node, rssdesc %02x\n", 1918 sc->sc_dev.dv_xname, __func__, frmhdr.wi_tx_idx); 1919 goto out; 1920 } 1921 1922 if (sc->sc_txpending[id->id_rateidx]-- == 0) { 1923 printf("%s: %s txpending[%i] wraparound", sc->sc_dev.dv_xname, 1924 __func__, id->id_rateidx); 1925 sc->sc_txpending[id->id_rateidx] = 0; 1926 } 1927 if (ni != NULL) 1928 ieee80211_free_node(ni); 1929 SLIST_INSERT_HEAD(&sc->sc_rssdfree, rssd, rd_next); 1930 out: 1931 ifp->if_flags &= ~IFF_OACTIVE; 1932 } 1933 1934 STATIC void 1935 wi_info_intr(struct wi_softc *sc) 1936 { 1937 struct ieee80211com *ic = &sc->sc_ic; 1938 struct ifnet *ifp = &sc->sc_if; 1939 int i, fid, len, off; 1940 u_int16_t ltbuf[2]; 1941 u_int16_t stat; 1942 u_int32_t *ptr; 1943 1944 fid = CSR_READ_2(sc, WI_INFO_FID); 1945 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1946 1947 switch (le16toh(ltbuf[1])) { 1948 1949 case WI_INFO_LINK_STAT: 1950 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1951 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1952 switch (le16toh(stat)) { 1953 case CONNECTED: 1954 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 1955 if (ic->ic_state == IEEE80211_S_RUN && 1956 ic->ic_opmode != IEEE80211_M_IBSS) 1957 break; 1958 /* FALLTHROUGH */ 1959 case AP_CHANGE: 1960 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1961 break; 1962 case AP_IN_RANGE: 1963 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 1964 break; 1965 case AP_OUT_OF_RANGE: 1966 if (sc->sc_firmware_type == WI_SYMBOL && 1967 sc->sc_scan_timer > 0) { 1968 if (wi_cmd(sc, WI_CMD_INQUIRE, 1969 WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0) 1970 sc->sc_scan_timer = 0; 1971 break; 1972 } 1973 if (ic->ic_opmode == IEEE80211_M_STA) 1974 sc->sc_flags |= WI_FLAGS_OUTRANGE; 1975 break; 1976 case DISCONNECTED: 1977 case ASSOC_FAILED: 1978 if (ic->ic_opmode == IEEE80211_M_STA) 1979 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1980 break; 1981 } 1982 break; 1983 1984 case WI_INFO_COUNTERS: 1985 /* some card versions have a larger stats structure */ 1986 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1987 ptr = (u_int32_t *)&sc->sc_stats; 1988 off = sizeof(ltbuf); 1989 for (i = 0; i < len; i++, off += 2, ptr++) { 1990 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1991 stat = le16toh(stat); 1992 #ifdef WI_HERMES_STATS_WAR 1993 if (stat & 0xf000) 1994 stat = ~stat; 1995 #endif 1996 *ptr += stat; 1997 } 1998 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + 1999 sc->sc_stats.wi_tx_multi_retries + 2000 sc->sc_stats.wi_tx_retry_limit; 2001 break; 2002 2003 case WI_INFO_SCAN_RESULTS: 2004 case WI_INFO_HOST_SCAN_RESULTS: 2005 wi_scan_result(sc, fid, le16toh(ltbuf[0])); 2006 break; 2007 2008 default: 2009 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 2010 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 2011 break; 2012 } 2013 } 2014 2015 STATIC int 2016 wi_write_multi(struct wi_softc *sc) 2017 { 2018 struct ifnet *ifp = &sc->sc_if; 2019 int n; 2020 struct wi_mcast mlist; 2021 struct ether_multi *enm; 2022 struct ether_multistep estep; 2023 2024 if ((ifp->if_flags & IFF_PROMISC) != 0) { 2025 allmulti: 2026 ifp->if_flags |= IFF_ALLMULTI; 2027 memset(&mlist, 0, sizeof(mlist)); 2028 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 2029 sizeof(mlist)); 2030 } 2031 2032 n = 0; 2033 ETHER_FIRST_MULTI(estep, &sc->sc_ec, enm); 2034 while (enm != NULL) { 2035 /* Punt on ranges or too many multicast addresses. */ 2036 if (!IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi) || 2037 n >= sizeof(mlist) / sizeof(mlist.wi_mcast[0])) 2038 goto allmulti; 2039 2040 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], enm->enm_addrlo); 2041 n++; 2042 ETHER_NEXT_MULTI(estep, enm); 2043 } 2044 ifp->if_flags &= ~IFF_ALLMULTI; 2045 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 2046 IEEE80211_ADDR_LEN * n); 2047 } 2048 2049 2050 STATIC void 2051 wi_read_nicid(struct wi_softc *sc) 2052 { 2053 struct wi_card_ident *id; 2054 char *p; 2055 int len; 2056 u_int16_t ver[4]; 2057 2058 /* getting chip identity */ 2059 memset(ver, 0, sizeof(ver)); 2060 len = sizeof(ver); 2061 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 2062 printf("%s: using ", sc->sc_dev.dv_xname); 2063 DPRINTF2(("wi_read_nicid: CARD_ID: %x %x %x %x\n", le16toh(ver[0]), le16toh(ver[1]), le16toh(ver[2]), le16toh(ver[3]))); 2064 2065 sc->sc_firmware_type = WI_NOTYPE; 2066 for (id = wi_card_ident; id->card_name != NULL; id++) { 2067 if (le16toh(ver[0]) == id->card_id) { 2068 printf("%s", id->card_name); 2069 sc->sc_firmware_type = id->firm_type; 2070 break; 2071 } 2072 } 2073 if (sc->sc_firmware_type == WI_NOTYPE) { 2074 if (le16toh(ver[0]) & 0x8000) { 2075 printf("Unknown PRISM2 chip"); 2076 sc->sc_firmware_type = WI_INTERSIL; 2077 } else { 2078 printf("Unknown Lucent chip"); 2079 sc->sc_firmware_type = WI_LUCENT; 2080 } 2081 } 2082 2083 /* get primary firmware version (Only Prism chips) */ 2084 if (sc->sc_firmware_type != WI_LUCENT) { 2085 memset(ver, 0, sizeof(ver)); 2086 len = sizeof(ver); 2087 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 2088 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 2089 le16toh(ver[3]) * 100 + le16toh(ver[1]); 2090 } 2091 2092 /* get station firmware version */ 2093 memset(ver, 0, sizeof(ver)); 2094 len = sizeof(ver); 2095 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 2096 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 2097 le16toh(ver[3]) * 100 + le16toh(ver[1]); 2098 if (sc->sc_firmware_type == WI_INTERSIL && 2099 (sc->sc_sta_firmware_ver == 10102 || 2100 sc->sc_sta_firmware_ver == 20102)) { 2101 char ident[12]; 2102 memset(ident, 0, sizeof(ident)); 2103 len = sizeof(ident); 2104 /* value should be the format like "V2.00-11" */ 2105 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 2106 *(p = (char *)ident) >= 'A' && 2107 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 2108 sc->sc_firmware_type = WI_SYMBOL; 2109 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + 2110 (p[3] - '0') * 1000 + (p[4] - '0') * 100 + 2111 (p[6] - '0') * 10 + (p[7] - '0'); 2112 } 2113 } 2114 2115 printf("\n%s: %s Firmware: ", sc->sc_dev.dv_xname, 2116 sc->sc_firmware_type == WI_LUCENT ? "Lucent" : 2117 (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil")); 2118 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 2119 printf("Primary (%u.%u.%u), ", 2120 sc->sc_pri_firmware_ver / 10000, 2121 (sc->sc_pri_firmware_ver % 10000) / 100, 2122 sc->sc_pri_firmware_ver % 100); 2123 printf("Station (%u.%u.%u)\n", 2124 sc->sc_sta_firmware_ver / 10000, 2125 (sc->sc_sta_firmware_ver % 10000) / 100, 2126 sc->sc_sta_firmware_ver % 100); 2127 } 2128 2129 STATIC int 2130 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 2131 { 2132 struct wi_ssid ssid; 2133 2134 if (buflen > IEEE80211_NWID_LEN) 2135 return ENOBUFS; 2136 memset(&ssid, 0, sizeof(ssid)); 2137 ssid.wi_len = htole16(buflen); 2138 memcpy(ssid.wi_ssid, buf, buflen); 2139 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 2140 } 2141 2142 STATIC int 2143 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data) 2144 { 2145 struct wi_softc *sc = ifp->if_softc; 2146 struct ieee80211com *ic = &sc->sc_ic; 2147 struct ifreq *ifr = (struct ifreq *)data; 2148 struct wi_req wreq; 2149 int len, n, error; 2150 2151 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq)); 2152 if (error) 2153 return error; 2154 len = (wreq.wi_len - 1) * 2; 2155 if (len < sizeof(u_int16_t)) 2156 return ENOSPC; 2157 if (len > sizeof(wreq.wi_val)) 2158 len = sizeof(wreq.wi_val); 2159 2160 switch (wreq.wi_type) { 2161 2162 case WI_RID_IFACE_STATS: 2163 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats)); 2164 if (len < sizeof(sc->sc_stats)) 2165 error = ENOSPC; 2166 else 2167 len = sizeof(sc->sc_stats); 2168 break; 2169 2170 case WI_RID_ENCRYPTION: 2171 case WI_RID_TX_CRYPT_KEY: 2172 case WI_RID_DEFLT_CRYPT_KEYS: 2173 case WI_RID_TX_RATE: 2174 return ieee80211_cfgget(ic, cmd, data); 2175 2176 case WI_RID_MICROWAVE_OVEN: 2177 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) { 2178 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2179 &len); 2180 break; 2181 } 2182 wreq.wi_val[0] = htole16(sc->sc_microwave_oven); 2183 len = sizeof(u_int16_t); 2184 break; 2185 2186 case WI_RID_DBM_ADJUST: 2187 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) { 2188 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2189 &len); 2190 break; 2191 } 2192 wreq.wi_val[0] = htole16(sc->sc_dbm_offset); 2193 len = sizeof(u_int16_t); 2194 break; 2195 2196 case WI_RID_ROAMING_MODE: 2197 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) { 2198 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2199 &len); 2200 break; 2201 } 2202 wreq.wi_val[0] = htole16(sc->sc_roaming_mode); 2203 len = sizeof(u_int16_t); 2204 break; 2205 2206 case WI_RID_SYSTEM_SCALE: 2207 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) { 2208 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2209 &len); 2210 break; 2211 } 2212 wreq.wi_val[0] = htole16(sc->sc_system_scale); 2213 len = sizeof(u_int16_t); 2214 break; 2215 2216 case WI_RID_FRAG_THRESH: 2217 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) { 2218 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2219 &len); 2220 break; 2221 } 2222 wreq.wi_val[0] = htole16(sc->sc_frag_thresh); 2223 len = sizeof(u_int16_t); 2224 break; 2225 2226 case WI_RID_READ_APS: 2227 #ifndef IEEE80211_NO_HOSTAP 2228 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 2229 return ieee80211_cfgget(ic, cmd, data); 2230 #endif /* !IEEE80211_NO_HOSTAP */ 2231 if (sc->sc_scan_timer > 0) { 2232 error = EINPROGRESS; 2233 break; 2234 } 2235 n = sc->sc_naps; 2236 if (len < sizeof(n)) { 2237 error = ENOSPC; 2238 break; 2239 } 2240 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n) 2241 n = (len - sizeof(n)) / sizeof(struct wi_apinfo); 2242 len = sizeof(n) + sizeof(struct wi_apinfo) * n; 2243 memcpy(wreq.wi_val, &n, sizeof(n)); 2244 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps, 2245 sizeof(struct wi_apinfo) * n); 2246 break; 2247 2248 default: 2249 if (sc->sc_enabled) { 2250 error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val, 2251 &len); 2252 break; 2253 } 2254 switch (wreq.wi_type) { 2255 case WI_RID_MAX_DATALEN: 2256 wreq.wi_val[0] = htole16(sc->sc_max_datalen); 2257 len = sizeof(u_int16_t); 2258 break; 2259 case WI_RID_FRAG_THRESH: 2260 wreq.wi_val[0] = htole16(sc->sc_frag_thresh); 2261 len = sizeof(u_int16_t); 2262 break; 2263 case WI_RID_RTS_THRESH: 2264 wreq.wi_val[0] = htole16(sc->sc_rts_thresh); 2265 len = sizeof(u_int16_t); 2266 break; 2267 case WI_RID_CNFAUTHMODE: 2268 wreq.wi_val[0] = htole16(sc->sc_cnfauthmode); 2269 len = sizeof(u_int16_t); 2270 break; 2271 case WI_RID_NODENAME: 2272 if (len < sc->sc_nodelen + sizeof(u_int16_t)) { 2273 error = ENOSPC; 2274 break; 2275 } 2276 len = sc->sc_nodelen + sizeof(u_int16_t); 2277 wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2); 2278 memcpy(&wreq.wi_val[1], sc->sc_nodename, 2279 sc->sc_nodelen); 2280 break; 2281 default: 2282 return ieee80211_cfgget(ic, cmd, data); 2283 } 2284 break; 2285 } 2286 if (error) 2287 return error; 2288 wreq.wi_len = (len + 1) / 2 + 1; 2289 return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2); 2290 } 2291 2292 STATIC int 2293 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data) 2294 { 2295 struct wi_softc *sc = ifp->if_softc; 2296 struct ieee80211com *ic = &sc->sc_ic; 2297 struct ifreq *ifr = (struct ifreq *)data; 2298 struct ieee80211_rateset *rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 2299 struct wi_req wreq; 2300 struct mbuf *m; 2301 int i, len, error; 2302 2303 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq)); 2304 if (error) 2305 return error; 2306 len = (wreq.wi_len - 1) * 2; 2307 switch (wreq.wi_type) { 2308 case WI_RID_DBM_ADJUST: 2309 return ENODEV; 2310 2311 case WI_RID_NODENAME: 2312 if (le16toh(wreq.wi_val[0]) * 2 > len || 2313 le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) { 2314 error = ENOSPC; 2315 break; 2316 } 2317 if (sc->sc_enabled) { 2318 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2319 len); 2320 if (error) 2321 break; 2322 } 2323 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2; 2324 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen); 2325 break; 2326 2327 case WI_RID_MICROWAVE_OVEN: 2328 case WI_RID_ROAMING_MODE: 2329 case WI_RID_SYSTEM_SCALE: 2330 case WI_RID_FRAG_THRESH: 2331 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN && 2332 (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0) 2333 break; 2334 if (wreq.wi_type == WI_RID_ROAMING_MODE && 2335 (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0) 2336 break; 2337 if (wreq.wi_type == WI_RID_SYSTEM_SCALE && 2338 (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0) 2339 break; 2340 if (wreq.wi_type == WI_RID_FRAG_THRESH && 2341 (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0) 2342 break; 2343 /* FALLTHROUGH */ 2344 case WI_RID_RTS_THRESH: 2345 case WI_RID_CNFAUTHMODE: 2346 case WI_RID_MAX_DATALEN: 2347 if (sc->sc_enabled) { 2348 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2349 sizeof(u_int16_t)); 2350 if (error) 2351 break; 2352 } 2353 switch (wreq.wi_type) { 2354 case WI_RID_FRAG_THRESH: 2355 sc->sc_frag_thresh = le16toh(wreq.wi_val[0]); 2356 break; 2357 case WI_RID_RTS_THRESH: 2358 sc->sc_rts_thresh = le16toh(wreq.wi_val[0]); 2359 break; 2360 case WI_RID_MICROWAVE_OVEN: 2361 sc->sc_microwave_oven = le16toh(wreq.wi_val[0]); 2362 break; 2363 case WI_RID_ROAMING_MODE: 2364 sc->sc_roaming_mode = le16toh(wreq.wi_val[0]); 2365 break; 2366 case WI_RID_SYSTEM_SCALE: 2367 sc->sc_system_scale = le16toh(wreq.wi_val[0]); 2368 break; 2369 case WI_RID_CNFAUTHMODE: 2370 sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]); 2371 break; 2372 case WI_RID_MAX_DATALEN: 2373 sc->sc_max_datalen = le16toh(wreq.wi_val[0]); 2374 break; 2375 } 2376 break; 2377 2378 case WI_RID_TX_RATE: 2379 switch (le16toh(wreq.wi_val[0])) { 2380 case 3: 2381 ic->ic_fixed_rate = -1; 2382 break; 2383 default: 2384 for (i = 0; i < IEEE80211_RATE_SIZE; i++) { 2385 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) 2386 / 2 == le16toh(wreq.wi_val[0])) 2387 break; 2388 } 2389 if (i == IEEE80211_RATE_SIZE) 2390 return EINVAL; 2391 ic->ic_fixed_rate = i; 2392 } 2393 if (sc->sc_enabled) 2394 error = wi_cfg_txrate(sc); 2395 break; 2396 2397 case WI_RID_SCAN_APS: 2398 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP) 2399 error = wi_scan_ap(sc, 0x3fff, 0x000f); 2400 break; 2401 2402 case WI_RID_MGMT_XMIT: 2403 if (!sc->sc_enabled) { 2404 error = ENETDOWN; 2405 break; 2406 } 2407 if (ic->ic_mgtq.ifq_len > 5) { 2408 error = EAGAIN; 2409 break; 2410 } 2411 /* XXX wi_len looks in u_int8_t, not in u_int16_t */ 2412 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL); 2413 if (m == NULL) { 2414 error = ENOMEM; 2415 break; 2416 } 2417 IF_ENQUEUE(&ic->ic_mgtq, m); 2418 break; 2419 2420 default: 2421 if (sc->sc_enabled) { 2422 error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val, 2423 len); 2424 if (error) 2425 break; 2426 } 2427 error = ieee80211_cfgset(ic, cmd, data); 2428 break; 2429 } 2430 return error; 2431 } 2432 2433 /* Rate is 0 for hardware auto-select, otherwise rate is 2434 * 2, 4, 11, or 22 (units of 500Kbps). 2435 */ 2436 STATIC int 2437 wi_write_txrate(struct wi_softc *sc, int rate) 2438 { 2439 u_int16_t hwrate; 2440 2441 /* rate: 0, 2, 4, 11, 22 */ 2442 switch (sc->sc_firmware_type) { 2443 case WI_LUCENT: 2444 switch (rate & IEEE80211_RATE_VAL) { 2445 case 2: 2446 hwrate = 1; 2447 break; 2448 case 4: 2449 hwrate = 2; 2450 break; 2451 default: 2452 hwrate = 3; /* auto */ 2453 break; 2454 case 11: 2455 hwrate = 4; 2456 break; 2457 case 22: 2458 hwrate = 5; 2459 break; 2460 } 2461 break; 2462 default: 2463 switch (rate & IEEE80211_RATE_VAL) { 2464 case 2: 2465 hwrate = 1; 2466 break; 2467 case 4: 2468 hwrate = 2; 2469 break; 2470 case 11: 2471 hwrate = 4; 2472 break; 2473 case 22: 2474 hwrate = 8; 2475 break; 2476 default: 2477 hwrate = 15; /* auto */ 2478 break; 2479 } 2480 break; 2481 } 2482 2483 if (sc->sc_tx_rate == hwrate) 2484 return 0; 2485 2486 if (sc->sc_if.if_flags & IFF_DEBUG) 2487 printf("%s: tx rate %d -> %d (%d)\n", __func__, sc->sc_tx_rate, 2488 hwrate, rate); 2489 2490 sc->sc_tx_rate = hwrate; 2491 2492 return wi_write_val(sc, WI_RID_TX_RATE, sc->sc_tx_rate); 2493 } 2494 2495 STATIC int 2496 wi_cfg_txrate(struct wi_softc *sc) 2497 { 2498 struct ieee80211com *ic = &sc->sc_ic; 2499 struct ieee80211_rateset *rs; 2500 int rate; 2501 2502 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 2503 2504 sc->sc_tx_rate = 0; /* force write to RID */ 2505 2506 if (ic->ic_fixed_rate < 0) 2507 rate = 0; /* auto */ 2508 else 2509 rate = rs->rs_rates[ic->ic_fixed_rate]; 2510 2511 return wi_write_txrate(sc, rate); 2512 } 2513 2514 STATIC int 2515 wi_key_alloc(struct ieee80211com *ic, const struct ieee80211_key *k) 2516 { 2517 int keyix; 2518 2519 if (&ic->ic_nw_keys[0] <= k && k < &ic->ic_nw_keys[IEEE80211_WEP_NKID]) 2520 keyix = k - ic->ic_nw_keys; 2521 else 2522 keyix = IEEE80211_KEYIX_NONE; 2523 2524 DPRINTF(("%s: alloc key %u\n", __func__, keyix)); 2525 2526 return keyix; 2527 } 2528 2529 STATIC int 2530 wi_key_delete(struct ieee80211com *ic, const struct ieee80211_key *k) 2531 { 2532 struct wi_softc *sc = ic->ic_ifp->if_softc; 2533 u_int keyix = k->wk_keyix; 2534 2535 DPRINTF(("%s: delete key %u\n", __func__, keyix)); 2536 2537 if (keyix >= IEEE80211_WEP_NKID) 2538 return 0; 2539 if (k->wk_keylen != 0) 2540 sc->sc_flags &= ~WI_FLAGS_WEP_VALID; 2541 2542 return 1; 2543 } 2544 2545 static int 2546 wi_key_set(struct ieee80211com *ic, const struct ieee80211_key *k, 2547 const u_int8_t mac[IEEE80211_ADDR_LEN]) 2548 { 2549 struct wi_softc *sc = ic->ic_ifp->if_softc; 2550 2551 DPRINTF(("%s: set key %u\n", __func__, k->wk_keyix)); 2552 2553 if (k->wk_keyix >= IEEE80211_WEP_NKID) 2554 return 0; 2555 2556 sc->sc_flags &= ~WI_FLAGS_WEP_VALID; 2557 2558 return 1; 2559 } 2560 2561 STATIC void 2562 wi_key_update_begin(struct ieee80211com *ic) 2563 { 2564 DPRINTF(("%s:\n", __func__)); 2565 } 2566 2567 STATIC void 2568 wi_key_update_end(struct ieee80211com *ic) 2569 { 2570 struct ifnet *ifp = ic->ic_ifp; 2571 struct wi_softc *sc = ifp->if_softc; 2572 2573 DPRINTF(("%s:\n", __func__)); 2574 2575 if ((sc->sc_flags & WI_FLAGS_WEP_VALID) != 0) 2576 return; 2577 if ((ic->ic_caps & IEEE80211_C_WEP) != 0 && sc->sc_enabled && 2578 !sc->sc_invalid) 2579 (void)wi_write_wep(sc); 2580 } 2581 2582 STATIC int 2583 wi_write_wep(struct wi_softc *sc) 2584 { 2585 struct ifnet *ifp = &sc->sc_if; 2586 struct ieee80211com *ic = &sc->sc_ic; 2587 int error = 0; 2588 int i, keylen; 2589 u_int16_t val; 2590 struct wi_key wkey[IEEE80211_WEP_NKID]; 2591 2592 if ((ifp->if_flags & IFF_RUNNING) != 0) 2593 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 2594 2595 switch (sc->sc_firmware_type) { 2596 case WI_LUCENT: 2597 val = (ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 2598 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 2599 if (error) 2600 break; 2601 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_def_txkey); 2602 if (error) 2603 break; 2604 memset(wkey, 0, sizeof(wkey)); 2605 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2606 keylen = ic->ic_nw_keys[i].wk_keylen; 2607 wkey[i].wi_keylen = htole16(keylen); 2608 memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key, 2609 keylen); 2610 } 2611 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 2612 wkey, sizeof(wkey)); 2613 break; 2614 2615 case WI_INTERSIL: 2616 case WI_SYMBOL: 2617 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2618 /* 2619 * ONLY HWB3163 EVAL-CARD Firmware version 2620 * less than 0.8 variant2 2621 * 2622 * If promiscuous mode disable, Prism2 chip 2623 * does not work with WEP . 2624 * It is under investigation for details. 2625 * (ichiro (at) NetBSD.org) 2626 */ 2627 if (sc->sc_firmware_type == WI_INTERSIL && 2628 sc->sc_sta_firmware_ver < 802 ) { 2629 /* firm ver < 0.8 variant 2 */ 2630 wi_write_val(sc, WI_RID_PROMISC, 1); 2631 } 2632 wi_write_val(sc, WI_RID_CNFAUTHMODE, 2633 sc->sc_cnfauthmode); 2634 val = PRIVACY_INVOKED; 2635 if ((sc->sc_ic_flags & IEEE80211_F_DROPUNENC) != 0) 2636 val |= EXCLUDE_UNENCRYPTED; 2637 #ifndef IEEE80211_NO_HOSTAP 2638 /* 2639 * Encryption firmware has a bug for HostAP mode. 2640 */ 2641 if (sc->sc_firmware_type == WI_INTERSIL && 2642 ic->ic_opmode == IEEE80211_M_HOSTAP) 2643 val |= HOST_ENCRYPT; 2644 #endif /* !IEEE80211_NO_HOSTAP */ 2645 } else { 2646 wi_write_val(sc, WI_RID_CNFAUTHMODE, 2647 IEEE80211_AUTH_OPEN); 2648 val = HOST_ENCRYPT | HOST_DECRYPT; 2649 } 2650 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 2651 if (error) 2652 break; 2653 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, 2654 ic->ic_def_txkey); 2655 if (error) 2656 break; 2657 /* 2658 * It seems that the firmware accept 104bit key only if 2659 * all the keys have 104bit length. We get the length of 2660 * the transmit key and use it for all other keys. 2661 * Perhaps we should use software WEP for such situation. 2662 */ 2663 if (ic->ic_def_txkey == IEEE80211_KEYIX_NONE || 2664 IEEE80211_KEY_UNDEFINED(ic->ic_nw_keys[ic->ic_def_txkey])) 2665 keylen = 13; /* No keys => 104bit ok */ 2666 else 2667 keylen = ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen; 2668 2669 if (keylen > IEEE80211_WEP_KEYLEN) 2670 keylen = 13; /* 104bit keys */ 2671 else 2672 keylen = IEEE80211_WEP_KEYLEN; 2673 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2674 error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i, 2675 ic->ic_nw_keys[i].wk_key, keylen); 2676 if (error) 2677 break; 2678 } 2679 break; 2680 } 2681 if ((ifp->if_flags & IFF_RUNNING) != 0) 2682 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 2683 if (error == 0) 2684 sc->sc_flags |= WI_FLAGS_WEP_VALID; 2685 return error; 2686 } 2687 2688 /* Must be called at proper protection level! */ 2689 STATIC int 2690 wi_cmd_start(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 2691 { 2692 #ifdef WI_HISTOGRAM 2693 static int hist1[11]; 2694 static int hist1count; 2695 #endif 2696 int i; 2697 2698 /* wait for the busy bit to clear */ 2699 for (i = 500; i > 0; i--) { /* 5s */ 2700 if ((CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY) == 0) 2701 break; 2702 if (sc->sc_invalid) 2703 return ENXIO; 2704 DELAY(1000); /* 1 m sec */ 2705 } 2706 if (i == 0) { 2707 printf("%s: wi_cmd: busy bit won't clear.\n", 2708 sc->sc_dev.dv_xname); 2709 return(ETIMEDOUT); 2710 } 2711 #ifdef WI_HISTOGRAM 2712 if (i > 490) 2713 hist1[500 - i]++; 2714 else 2715 hist1[10]++; 2716 if (++hist1count == 1000) { 2717 hist1count = 0; 2718 printf("%s: hist1: %d %d %d %d %d %d %d %d %d %d %d\n", 2719 sc->sc_dev.dv_xname, 2720 hist1[0], hist1[1], hist1[2], hist1[3], hist1[4], 2721 hist1[5], hist1[6], hist1[7], hist1[8], hist1[9], 2722 hist1[10]); 2723 } 2724 #endif 2725 CSR_WRITE_2(sc, WI_PARAM0, val0); 2726 CSR_WRITE_2(sc, WI_PARAM1, val1); 2727 CSR_WRITE_2(sc, WI_PARAM2, val2); 2728 CSR_WRITE_2(sc, WI_COMMAND, cmd); 2729 2730 return 0; 2731 } 2732 2733 STATIC int 2734 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 2735 { 2736 int rc; 2737 2738 #ifdef WI_DEBUG 2739 if (wi_debug) { 2740 printf("%s: [enter] %d txcmds outstanding\n", __func__, 2741 sc->sc_txcmds); 2742 } 2743 #endif 2744 if (sc->sc_txcmds > 0) 2745 wi_txcmd_wait(sc); 2746 2747 if ((rc = wi_cmd_start(sc, cmd, val0, val1, val2)) != 0) 2748 return rc; 2749 2750 if (cmd == WI_CMD_INI) { 2751 /* XXX: should sleep here. */ 2752 if (sc->sc_invalid) 2753 return ENXIO; 2754 DELAY(100*1000); 2755 } 2756 rc = wi_cmd_wait(sc, cmd, val0); 2757 2758 #ifdef WI_DEBUG 2759 if (wi_debug) { 2760 printf("%s: [ ] %d txcmds outstanding\n", __func__, 2761 sc->sc_txcmds); 2762 } 2763 #endif 2764 if (sc->sc_txcmds > 0) 2765 wi_cmd_intr(sc); 2766 2767 #ifdef WI_DEBUG 2768 if (wi_debug) { 2769 printf("%s: [leave] %d txcmds outstanding\n", __func__, 2770 sc->sc_txcmds); 2771 } 2772 #endif 2773 return rc; 2774 } 2775 2776 STATIC int 2777 wi_cmd_wait(struct wi_softc *sc, int cmd, int val0) 2778 { 2779 #ifdef WI_HISTOGRAM 2780 static int hist2[11]; 2781 static int hist2count; 2782 #endif 2783 int i, status; 2784 #ifdef WI_DEBUG 2785 if (wi_debug > 1) 2786 printf("%s: cmd=%#x, arg=%#x\n", __func__, cmd, val0); 2787 #endif /* WI_DEBUG */ 2788 2789 /* wait for the cmd completed bit */ 2790 for (i = 0; i < WI_TIMEOUT; i++) { 2791 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD) 2792 break; 2793 if (sc->sc_invalid) 2794 return ENXIO; 2795 DELAY(WI_DELAY); 2796 } 2797 2798 #ifdef WI_HISTOGRAM 2799 if (i < 100) 2800 hist2[i/10]++; 2801 else 2802 hist2[10]++; 2803 if (++hist2count == 1000) { 2804 hist2count = 0; 2805 printf("%s: hist2: %d %d %d %d %d %d %d %d %d %d %d\n", 2806 sc->sc_dev.dv_xname, 2807 hist2[0], hist2[1], hist2[2], hist2[3], hist2[4], 2808 hist2[5], hist2[6], hist2[7], hist2[8], hist2[9], 2809 hist2[10]); 2810 } 2811 #endif 2812 2813 status = CSR_READ_2(sc, WI_STATUS); 2814 2815 if (i == WI_TIMEOUT) { 2816 printf("%s: command timed out, cmd=0x%x, arg=0x%x\n", 2817 sc->sc_dev.dv_xname, cmd, val0); 2818 return ETIMEDOUT; 2819 } 2820 2821 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 2822 2823 if (status & WI_STAT_CMD_RESULT) { 2824 printf("%s: command failed, cmd=0x%x, arg=0x%x\n", 2825 sc->sc_dev.dv_xname, cmd, val0); 2826 return EIO; 2827 } 2828 return 0; 2829 } 2830 2831 STATIC int 2832 wi_seek_bap(struct wi_softc *sc, int id, int off) 2833 { 2834 #ifdef WI_HISTOGRAM 2835 static int hist4[11]; 2836 static int hist4count; 2837 #endif 2838 int i, status; 2839 2840 CSR_WRITE_2(sc, WI_SEL0, id); 2841 CSR_WRITE_2(sc, WI_OFF0, off); 2842 2843 for (i = 0; ; i++) { 2844 status = CSR_READ_2(sc, WI_OFF0); 2845 if ((status & WI_OFF_BUSY) == 0) 2846 break; 2847 if (i == WI_TIMEOUT) { 2848 printf("%s: timeout in wi_seek to %x/%x\n", 2849 sc->sc_dev.dv_xname, id, off); 2850 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2851 return ETIMEDOUT; 2852 } 2853 if (sc->sc_invalid) 2854 return ENXIO; 2855 DELAY(2); 2856 } 2857 #ifdef WI_HISTOGRAM 2858 if (i < 100) 2859 hist4[i/10]++; 2860 else 2861 hist4[10]++; 2862 if (++hist4count == 2500) { 2863 hist4count = 0; 2864 printf("%s: hist4: %d %d %d %d %d %d %d %d %d %d %d\n", 2865 sc->sc_dev.dv_xname, 2866 hist4[0], hist4[1], hist4[2], hist4[3], hist4[4], 2867 hist4[5], hist4[6], hist4[7], hist4[8], hist4[9], 2868 hist4[10]); 2869 } 2870 #endif 2871 if (status & WI_OFF_ERR) { 2872 printf("%s: failed in wi_seek to %x/%x\n", 2873 sc->sc_dev.dv_xname, id, off); 2874 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2875 return EIO; 2876 } 2877 sc->sc_bap_id = id; 2878 sc->sc_bap_off = off; 2879 return 0; 2880 } 2881 2882 STATIC int 2883 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 2884 { 2885 int error, cnt; 2886 2887 if (buflen == 0) 2888 return 0; 2889 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 2890 if ((error = wi_seek_bap(sc, id, off)) != 0) 2891 return error; 2892 } 2893 cnt = (buflen + 1) / 2; 2894 CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 2895 sc->sc_bap_off += cnt * 2; 2896 return 0; 2897 } 2898 2899 STATIC int 2900 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 2901 { 2902 int error, cnt; 2903 2904 if (buflen == 0) 2905 return 0; 2906 2907 #ifdef WI_HERMES_AUTOINC_WAR 2908 again: 2909 #endif 2910 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 2911 if ((error = wi_seek_bap(sc, id, off)) != 0) 2912 return error; 2913 } 2914 cnt = (buflen + 1) / 2; 2915 CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 2916 sc->sc_bap_off += cnt * 2; 2917 2918 #ifdef WI_HERMES_AUTOINC_WAR 2919 /* 2920 * According to the comments in the HCF Light code, there is a bug 2921 * in the Hermes (or possibly in certain Hermes firmware revisions) 2922 * where the chip's internal autoincrement counter gets thrown off 2923 * during data writes: the autoincrement is missed, causing one 2924 * data word to be overwritten and subsequent words to be written to 2925 * the wrong memory locations. The end result is that we could end 2926 * up transmitting bogus frames without realizing it. The workaround 2927 * for this is to write a couple of extra guard words after the end 2928 * of the transfer, then attempt to read then back. If we fail to 2929 * locate the guard words where we expect them, we preform the 2930 * transfer over again. 2931 */ 2932 if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) { 2933 CSR_WRITE_2(sc, WI_DATA0, 0x1234); 2934 CSR_WRITE_2(sc, WI_DATA0, 0x5678); 2935 wi_seek_bap(sc, id, sc->sc_bap_off); 2936 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 2937 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 || 2938 CSR_READ_2(sc, WI_DATA0) != 0x5678) { 2939 printf("%s: detect auto increment bug, try again\n", 2940 sc->sc_dev.dv_xname); 2941 goto again; 2942 } 2943 } 2944 #endif 2945 return 0; 2946 } 2947 2948 STATIC int 2949 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 2950 { 2951 int error, len; 2952 struct mbuf *m; 2953 2954 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 2955 if (m->m_len == 0) 2956 continue; 2957 2958 len = min(m->m_len, totlen); 2959 2960 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 2961 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 2962 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 2963 totlen); 2964 } 2965 2966 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 2967 return error; 2968 2969 off += m->m_len; 2970 totlen -= len; 2971 } 2972 return 0; 2973 } 2974 2975 STATIC int 2976 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 2977 { 2978 int i; 2979 2980 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 2981 printf("%s: failed to allocate %d bytes on NIC\n", 2982 sc->sc_dev.dv_xname, len); 2983 return ENOMEM; 2984 } 2985 2986 for (i = 0; i < WI_TIMEOUT; i++) { 2987 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 2988 break; 2989 DELAY(1); 2990 } 2991 if (i == WI_TIMEOUT) { 2992 printf("%s: timeout in alloc\n", sc->sc_dev.dv_xname); 2993 return ETIMEDOUT; 2994 } 2995 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 2996 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 2997 return 0; 2998 } 2999 3000 STATIC int 3001 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 3002 { 3003 int error, len; 3004 u_int16_t ltbuf[2]; 3005 3006 /* Tell the NIC to enter record read mode. */ 3007 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 3008 if (error) 3009 return error; 3010 3011 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 3012 if (error) 3013 return error; 3014 3015 if (le16toh(ltbuf[0]) == 0) 3016 return EOPNOTSUPP; 3017 if (le16toh(ltbuf[1]) != rid) { 3018 printf("%s: record read mismatch, rid=%x, got=%x\n", 3019 sc->sc_dev.dv_xname, rid, le16toh(ltbuf[1])); 3020 return EIO; 3021 } 3022 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 3023 if (*buflenp < len) { 3024 printf("%s: record buffer is too small, " 3025 "rid=%x, size=%d, len=%d\n", 3026 sc->sc_dev.dv_xname, rid, *buflenp, len); 3027 return ENOSPC; 3028 } 3029 *buflenp = len; 3030 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 3031 } 3032 3033 STATIC int 3034 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 3035 { 3036 int error; 3037 u_int16_t ltbuf[2]; 3038 3039 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 3040 ltbuf[1] = htole16(rid); 3041 3042 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 3043 if (error) 3044 return error; 3045 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 3046 if (error) 3047 return error; 3048 3049 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 3050 } 3051 3052 STATIC void 3053 wi_rssadapt_updatestats_cb(void *arg, struct ieee80211_node *ni) 3054 { 3055 struct wi_node *wn = (void*)ni; 3056 ieee80211_rssadapt_updatestats(&wn->wn_rssadapt); 3057 } 3058 3059 STATIC void 3060 wi_rssadapt_updatestats(void *arg) 3061 { 3062 struct wi_softc *sc = arg; 3063 struct ieee80211com *ic = &sc->sc_ic; 3064 ieee80211_iterate_nodes(&ic->ic_sta, wi_rssadapt_updatestats_cb, arg); 3065 if (ic->ic_opmode != IEEE80211_M_MONITOR && 3066 ic->ic_state == IEEE80211_S_RUN) 3067 callout_reset(&sc->sc_rssadapt_ch, hz / 10, 3068 wi_rssadapt_updatestats, arg); 3069 } 3070 3071 /* 3072 * In HOSTAP mode, restore IEEE80211_F_DROPUNENC when operating 3073 * with WEP enabled so that the AP drops unencoded frames at the 3074 * 802.11 layer. 3075 * 3076 * In all other modes, clear IEEE80211_F_DROPUNENC when operating 3077 * with WEP enabled so we don't drop unencoded frames at the 802.11 3078 * layer. This is necessary because we must strip the WEP bit from 3079 * the 802.11 header before passing frames to ieee80211_input 3080 * because the card has already stripped the WEP crypto header from 3081 * the packet. 3082 */ 3083 STATIC void 3084 wi_mend_flags(struct wi_softc *sc, enum ieee80211_state nstate) 3085 { 3086 struct ieee80211com *ic = &sc->sc_ic; 3087 3088 if (nstate == IEEE80211_S_RUN && 3089 (ic->ic_flags & IEEE80211_F_PRIVACY) != 0 && 3090 ic->ic_opmode != IEEE80211_M_HOSTAP) 3091 ic->ic_flags &= ~IEEE80211_F_DROPUNENC; 3092 else 3093 ic->ic_flags |= sc->sc_ic_flags; 3094 3095 DPRINTF(("%s: state %d, " 3096 "ic->ic_flags & IEEE80211_F_DROPUNENC = %#" PRIx32 ", " 3097 "sc->sc_ic_flags & IEEE80211_F_DROPUNENC = %#" PRIx32 "\n", 3098 __func__, nstate, 3099 ic->ic_flags & IEEE80211_F_DROPUNENC, 3100 sc->sc_ic_flags & IEEE80211_F_DROPUNENC)); 3101 } 3102 3103 STATIC int 3104 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 3105 { 3106 struct ifnet *ifp = ic->ic_ifp; 3107 struct wi_softc *sc = ifp->if_softc; 3108 struct ieee80211_node *ni = ic->ic_bss; 3109 u_int16_t val; 3110 struct wi_ssid ssid; 3111 struct wi_macaddr bssid, old_bssid; 3112 enum ieee80211_state ostate; 3113 #ifdef WI_DEBUG 3114 static const char *stname[] = 3115 { "INIT", "SCAN", "AUTH", "ASSOC", "RUN" }; 3116 #endif /* WI_DEBUG */ 3117 3118 ostate = ic->ic_state; 3119 DPRINTF(("wi_newstate: %s -> %s\n", stname[ostate], stname[nstate])); 3120 3121 switch (nstate) { 3122 case IEEE80211_S_INIT: 3123 if (ic->ic_opmode != IEEE80211_M_MONITOR) 3124 callout_stop(&sc->sc_rssadapt_ch); 3125 ic->ic_flags &= ~IEEE80211_F_SIBSS; 3126 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 3127 break; 3128 3129 case IEEE80211_S_SCAN: 3130 case IEEE80211_S_AUTH: 3131 case IEEE80211_S_ASSOC: 3132 ic->ic_state = nstate; /* NB: skip normal ieee80211 handling */ 3133 wi_mend_flags(sc, nstate); 3134 return 0; 3135 3136 case IEEE80211_S_RUN: 3137 sc->sc_flags &= ~WI_FLAGS_OUTRANGE; 3138 IEEE80211_ADDR_COPY(old_bssid.wi_mac_addr, ni->ni_bssid); 3139 wi_read_xrid(sc, WI_RID_CURRENT_BSSID, &bssid, 3140 IEEE80211_ADDR_LEN); 3141 IEEE80211_ADDR_COPY(ni->ni_bssid, &bssid); 3142 IEEE80211_ADDR_COPY(ni->ni_macaddr, &bssid); 3143 wi_read_xrid(sc, WI_RID_CURRENT_CHAN, &val, sizeof(val)); 3144 if (!isset(ic->ic_chan_avail, le16toh(val))) 3145 panic("%s: invalid channel %d\n", sc->sc_dev.dv_xname, 3146 le16toh(val)); 3147 ni->ni_chan = &ic->ic_channels[le16toh(val)]; 3148 3149 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 3150 #ifndef IEEE80211_NO_HOSTAP 3151 ni->ni_esslen = ic->ic_des_esslen; 3152 memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); 3153 ni->ni_rates = ic->ic_sup_rates[ 3154 ieee80211_chan2mode(ic, ni->ni_chan)]; 3155 ni->ni_intval = ic->ic_lintval; 3156 ni->ni_capinfo = IEEE80211_CAPINFO_ESS; 3157 if (ic->ic_flags & IEEE80211_F_PRIVACY) 3158 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 3159 #endif /* !IEEE80211_NO_HOSTAP */ 3160 } else { 3161 wi_read_xrid(sc, WI_RID_CURRENT_SSID, &ssid, 3162 sizeof(ssid)); 3163 ni->ni_esslen = le16toh(ssid.wi_len); 3164 if (ni->ni_esslen > IEEE80211_NWID_LEN) 3165 ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/ 3166 memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen); 3167 ni->ni_rates = ic->ic_sup_rates[ 3168 ieee80211_chan2mode(ic, ni->ni_chan)]; /*XXX*/ 3169 } 3170 if (ic->ic_opmode != IEEE80211_M_MONITOR) 3171 callout_reset(&sc->sc_rssadapt_ch, hz / 10, 3172 wi_rssadapt_updatestats, sc); 3173 /* Trigger routing socket messages. XXX Copied from 3174 * ieee80211_newstate. 3175 */ 3176 if (ic->ic_opmode == IEEE80211_M_STA) 3177 ieee80211_notify_node_join(ic, ic->ic_bss, 3178 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 3179 break; 3180 } 3181 wi_mend_flags(sc, nstate); 3182 return (*sc->sc_newstate)(ic, nstate, arg); 3183 } 3184 3185 STATIC void 3186 wi_set_tim(struct ieee80211com *ic, struct ieee80211_node *ni, int set) 3187 { 3188 struct wi_softc *sc = ic->ic_ifp->if_softc; 3189 3190 (*sc->sc_set_tim)(ic, ni, set); 3191 3192 if ((ic->ic_flags & IEEE80211_F_TIMUPDATE) == 0) 3193 return; 3194 3195 ic->ic_flags &= ~IEEE80211_F_TIMUPDATE; 3196 3197 (void)wi_write_val(sc, WI_RID_SET_TIM, 3198 IEEE80211_AID(ni->ni_associd) | (set ? 0x8000 : 0)); 3199 } 3200 3201 STATIC int 3202 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate) 3203 { 3204 int error = 0; 3205 u_int16_t val[2]; 3206 3207 if (!sc->sc_enabled) 3208 return ENXIO; 3209 switch (sc->sc_firmware_type) { 3210 case WI_LUCENT: 3211 (void)wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0); 3212 break; 3213 case WI_INTERSIL: 3214 val[0] = htole16(chanmask); /* channel */ 3215 val[1] = htole16(txrate); /* tx rate */ 3216 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val)); 3217 break; 3218 case WI_SYMBOL: 3219 /* 3220 * XXX only supported on 3.x ? 3221 */ 3222 val[0] = htole16(BSCAN_BCAST | BSCAN_ONETIME); 3223 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ, 3224 val, sizeof(val[0])); 3225 break; 3226 } 3227 if (error == 0) { 3228 sc->sc_scan_timer = WI_SCAN_WAIT; 3229 sc->sc_if.if_timer = 1; 3230 DPRINTF(("wi_scan_ap: start scanning, " 3231 "chanmask 0x%x txrate 0x%x\n", chanmask, txrate)); 3232 } 3233 return error; 3234 } 3235 3236 STATIC void 3237 wi_scan_result(struct wi_softc *sc, int fid, int cnt) 3238 { 3239 #define N(a) (sizeof (a) / sizeof (a[0])) 3240 int i, naps, off, szbuf; 3241 struct wi_scan_header ws_hdr; /* Prism2 header */ 3242 struct wi_scan_data_p2 ws_dat; /* Prism2 scantable*/ 3243 struct wi_apinfo *ap; 3244 3245 off = sizeof(u_int16_t) * 2; 3246 memset(&ws_hdr, 0, sizeof(ws_hdr)); 3247 switch (sc->sc_firmware_type) { 3248 case WI_INTERSIL: 3249 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr)); 3250 off += sizeof(ws_hdr); 3251 szbuf = sizeof(struct wi_scan_data_p2); 3252 break; 3253 case WI_SYMBOL: 3254 szbuf = sizeof(struct wi_scan_data_p2) + 6; 3255 break; 3256 case WI_LUCENT: 3257 szbuf = sizeof(struct wi_scan_data); 3258 break; 3259 default: 3260 printf("%s: wi_scan_result: unknown firmware type %u\n", 3261 sc->sc_dev.dv_xname, sc->sc_firmware_type); 3262 naps = 0; 3263 goto done; 3264 } 3265 naps = (cnt * 2 + 2 - off) / szbuf; 3266 if (naps > N(sc->sc_aps)) 3267 naps = N(sc->sc_aps); 3268 sc->sc_naps = naps; 3269 /* Read Data */ 3270 ap = sc->sc_aps; 3271 memset(&ws_dat, 0, sizeof(ws_dat)); 3272 for (i = 0; i < naps; i++, ap++) { 3273 wi_read_bap(sc, fid, off, &ws_dat, 3274 (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf)); 3275 DPRINTF2(("wi_scan_result: #%d: off %d bssid %s\n", i, off, 3276 ether_sprintf(ws_dat.wi_bssid))); 3277 off += szbuf; 3278 ap->scanreason = le16toh(ws_hdr.wi_reason); 3279 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid)); 3280 ap->channel = le16toh(ws_dat.wi_chid); 3281 ap->signal = le16toh(ws_dat.wi_signal); 3282 ap->noise = le16toh(ws_dat.wi_noise); 3283 ap->quality = ap->signal - ap->noise; 3284 ap->capinfo = le16toh(ws_dat.wi_capinfo); 3285 ap->interval = le16toh(ws_dat.wi_interval); 3286 ap->rate = le16toh(ws_dat.wi_rate); 3287 ap->namelen = le16toh(ws_dat.wi_namelen); 3288 if (ap->namelen > sizeof(ap->name)) 3289 ap->namelen = sizeof(ap->name); 3290 memcpy(ap->name, ws_dat.wi_name, ap->namelen); 3291 } 3292 done: 3293 /* Done scanning */ 3294 sc->sc_scan_timer = 0; 3295 DPRINTF(("wi_scan_result: scan complete: ap %d\n", naps)); 3296 #undef N 3297 } 3298 3299 STATIC void 3300 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi) 3301 { 3302 ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr), 3303 ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL 3304 : -1, 3305 rssi); 3306 printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n", 3307 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1), 3308 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence); 3309 printf(" rx_signal %u rx_rate %u rx_flow %u\n", 3310 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow); 3311 printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n", 3312 wh->wi_tx_rtry, wh->wi_tx_rate, 3313 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len)); 3314 printf(" ehdr dst %s src %s type 0x%x\n", 3315 ether_sprintf(wh->wi_ehdr.ether_dhost), 3316 ether_sprintf(wh->wi_ehdr.ether_shost), 3317 wh->wi_ehdr.ether_type); 3318 } 3319
Indexes created Wed Sep 24 22:09:59 GMT 2025