1 /*- 2 * Copyright (c) 1997, 1998, 1999 3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD: head/sys/dev/wi/if_wi.c 196970 2009-09-08 13:19:05Z phk $ 33 * $DragonFly$ 34 */ 35 36 /* 37 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver. 38 * 39 * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu> 40 * Electrical Engineering Department 41 * Columbia University, New York City 42 */ 43 44 /* 45 * The WaveLAN/IEEE adapter is the second generation of the WaveLAN 46 * from Lucent. Unlike the older cards, the new ones are programmed 47 * entirely via a firmware-driven controller called the Hermes. 48 * Unfortunately, Lucent will not release the Hermes programming manual 49 * without an NDA (if at all). What they do release is an API library 50 * called the HCF (Hardware Control Functions) which is supposed to 51 * do the device-specific operations of a device driver for you. The 52 * publically available version of the HCF library (the 'HCF Light') is 53 * a) extremely gross, b) lacks certain features, particularly support 54 * for 802.11 frames, and c) is contaminated by the GNU Public License. 55 * 56 * This driver does not use the HCF or HCF Light at all. Instead, it 57 * programs the Hermes controller directly, using information gleaned 58 * from the HCF Light code and corresponding documentation. 59 * 60 * This driver supports the ISA, PCMCIA and PCI versions of the Lucent 61 * WaveLan cards (based on the Hermes chipset), as well as the newer 62 * Prism 2 chipsets with firmware from Intersil and Symbol. 63 */ 64 65 66 #define WI_HERMES_STATS_WAR /* Work around stats counter bug. */ 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/endian.h> 71 #include <sys/sockio.h> 72 #include <sys/mbuf.h> 73 #include <sys/priv.h> 74 #include <sys/proc.h> 75 #include <sys/kernel.h> 76 #include <sys/socket.h> 77 #include <sys/module.h> 78 #include <sys/bus.h> 79 #include <sys/random.h> 80 #include <sys/syslog.h> 81 #include <sys/sysctl.h> 82 83 #include <machine/atomic.h> 84 #include <sys/rman.h> 85 86 #include <net/if.h> 87 #include <net/if_arp.h> 88 #include <net/ethernet.h> 89 #include <net/if_dl.h> 90 #include <net/if_llc.h> 91 #include <net/if_media.h> 92 #include <net/if_types.h> 93 #include <net/ifq_var.h> 94 95 #include <netproto/802_11/ieee80211_var.h> 96 #include <netproto/802_11/ieee80211_ioctl.h> 97 #include <netproto/802_11/ieee80211_radiotap.h> 98 99 #include <netinet/in.h> 100 #include <netinet/in_systm.h> 101 #include <netinet/in_var.h> 102 #include <netinet/ip.h> 103 #include <netinet/if_ether.h> 104 105 #include <net/bpf.h> 106 107 #include <dev/netif/wi/if_wavelan_ieee.h> 108 #include <dev/netif/wi/if_wireg.h> 109 #include <dev/netif/wi/if_wivar.h> 110 111 static struct ieee80211vap *wi_vap_create(struct ieee80211com *ic, 112 const char name[IFNAMSIZ], int unit, int opmode, int flags, 113 const uint8_t bssid[IEEE80211_ADDR_LEN], 114 const uint8_t mac[IEEE80211_ADDR_LEN]); 115 static void wi_vap_delete(struct ieee80211vap *vap); 116 static void wi_stop_locked(struct wi_softc *sc, int disable); 117 static void wi_start_locked(struct ifnet *); 118 static void wi_start(struct ifnet *); 119 static int wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, 120 struct mbuf *m0); 121 static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *, 122 const struct ieee80211_bpf_params *); 123 static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int); 124 static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state, 125 int); 126 static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 127 int subtype, int rssi, int nf); 128 static int wi_reset(struct wi_softc *); 129 static void wi_watchdog(void *); 130 static int wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *); 131 static void wi_media_status(struct ifnet *, struct ifmediareq *); 132 133 static void wi_rx_intr(struct wi_softc *); 134 static void wi_tx_intr(struct wi_softc *); 135 static void wi_tx_ex_intr(struct wi_softc *); 136 137 static void wi_info_intr(struct wi_softc *); 138 139 static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *); 140 static int wi_write_wep(struct wi_softc *, struct ieee80211vap *); 141 static int wi_write_multi(struct wi_softc *); 142 static void wi_update_mcast(struct ifnet *); 143 static void wi_update_promisc(struct ifnet *); 144 static int wi_alloc_fid(struct wi_softc *, int, int *); 145 static void wi_read_nicid(struct wi_softc *); 146 static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); 147 148 static int wi_cmd(struct wi_softc *, int, int, int, int); 149 static int wi_seek_bap(struct wi_softc *, int, int); 150 static int wi_read_bap(struct wi_softc *, int, int, void *, int); 151 static int wi_write_bap(struct wi_softc *, int, int, void *, int); 152 static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); 153 static int wi_read_rid(struct wi_softc *, int, void *, int *); 154 static int wi_write_rid(struct wi_softc *, int, void *, int); 155 static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *); 156 157 static void wi_scan_start(struct ieee80211com *); 158 static void wi_scan_end(struct ieee80211com *); 159 static void wi_set_channel(struct ieee80211com *); 160 161 static __inline int 162 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) 163 { 164 165 val = htole16(val); 166 return wi_write_rid(sc, rid, &val, sizeof(val)); 167 } 168 169 SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters"); 170 171 static struct timeval lasttxerror; /* time of last tx error msg */ 172 static int curtxeps; /* current tx error msgs/sec */ 173 static int wi_txerate = 0; /* tx error rate: max msgs/sec */ 174 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate, 175 0, "max tx error msgs/sec; 0 to disable msgs"); 176 177 #define WI_DEBUG 178 #ifdef WI_DEBUG 179 static int wi_debug = 0; 180 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug, 181 0, "control debugging printfs"); 182 #define DPRINTF(X) if (wi_debug) kprintf X 183 #else 184 #define DPRINTF(X) 185 #endif 186 187 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO) 188 189 struct wi_card_ident wi_card_ident[] = { 190 /* CARD_ID CARD_NAME FIRM_TYPE */ 191 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, 192 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, 193 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, 194 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, 195 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, 196 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, 197 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, 198 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, 199 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, 200 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, 201 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, 202 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, 203 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 204 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 205 { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 206 { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 207 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 208 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 209 { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 210 { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 211 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 212 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 213 { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 214 { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 215 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 216 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 217 { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 218 { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 219 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 220 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 221 { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 222 { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 223 { 0, NULL, 0 }, 224 }; 225 226 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" }; 227 228 devclass_t wi_devclass; 229 230 int 231 wi_attach(device_t dev) 232 { 233 struct wi_softc *sc = device_get_softc(dev); 234 struct ieee80211com *ic; 235 struct ifnet *ifp; 236 int i, nrates, buflen; 237 u_int16_t val; 238 u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE]; 239 struct ieee80211_rateset *rs; 240 struct sysctl_ctx_list *sctx; 241 struct sysctl_oid *soid; 242 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 243 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 244 }; 245 int error; 246 uint8_t macaddr[IEEE80211_ADDR_LEN]; 247 248 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 249 if (ifp == NULL) { 250 device_printf(dev, "can not if_alloc\n"); 251 wi_free(dev); 252 return ENOSPC; 253 } 254 ic = ifp->if_l2com; 255 256 sc->sc_firmware_type = WI_NOTYPE; 257 sc->wi_cmd_count = 500; 258 /* Reset the NIC. */ 259 if (wi_reset(sc) != 0) { 260 wi_free(dev); 261 return ENXIO; /* XXX */ 262 } 263 264 /* Read NIC identification */ 265 wi_read_nicid(sc); 266 switch (sc->sc_firmware_type) { 267 case WI_LUCENT: 268 if (sc->sc_sta_firmware_ver < 60006) 269 goto reject; 270 break; 271 case WI_INTERSIL: 272 if (sc->sc_sta_firmware_ver < 800) 273 goto reject; 274 break; 275 default: 276 reject: 277 device_printf(dev, "Sorry, this card is not supported " 278 "(type %d, firmware ver %d)\n", 279 sc->sc_firmware_type, sc->sc_sta_firmware_ver); 280 wi_free(dev); 281 return EOPNOTSUPP; 282 } 283 284 /* Export info about the device via sysctl */ 285 sctx = &sc->sc_sysctl_ctx; 286 sysctl_ctx_init(sctx); 287 soid = SYSCTL_ADD_NODE(sctx, SYSCTL_STATIC_CHILDREN(_hw), 288 OID_AUTO, 289 device_get_nameunit(sc->sc_dev), 290 CTLFLAG_RD, 0, ""); 291 if (soid == NULL) { 292 device_printf(sc->sc_dev, "can't add sysctl node\n"); 293 return ENXIO; 294 } 295 296 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 297 "firmware_type", CTLFLAG_RD, 298 wi_firmware_names[sc->sc_firmware_type], 0, 299 "Firmware type string"); 300 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version", 301 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0, 302 "Station Firmware version"); 303 if (sc->sc_firmware_type == WI_INTERSIL) 304 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 305 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0, 306 "Primary Firmware version"); 307 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id", 308 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id"); 309 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name", 310 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name"); 311 312 lockinit(&sc->sc_lock, __DECONST(char *, device_get_nameunit(dev)), 313 0, LK_CANRECURSE); 314 callout_init(&sc->sc_watchdog); 315 316 /* 317 * Read the station address. 318 * And do it twice. I've seen PRISM-based cards that return 319 * an error when trying to read it the first time, which causes 320 * the probe to fail. 321 */ 322 buflen = IEEE80211_ADDR_LEN; 323 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 324 if (error != 0) { 325 buflen = IEEE80211_ADDR_LEN; 326 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 327 } 328 if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) { 329 if (error != 0) 330 device_printf(dev, "mac read failed %d\n", error); 331 else { 332 device_printf(dev, "mac read failed (all zeros)\n"); 333 error = ENXIO; 334 } 335 wi_free(dev); 336 return (error); 337 } 338 339 ifp->if_softc = sc; 340 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 341 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 342 ifp->if_ioctl = wi_ioctl; 343 ifp->if_start = wi_start; 344 ifp->if_init = wi_init; 345 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN); 346 ifq_set_ready(&ifp->if_snd); 347 348 ic->ic_ifp = ifp; 349 ic->ic_phytype = IEEE80211_T_DS; 350 ic->ic_opmode = IEEE80211_M_STA; 351 ic->ic_caps = IEEE80211_C_STA 352 | IEEE80211_C_PMGT 353 | IEEE80211_C_MONITOR 354 ; 355 356 /* 357 * Query the card for available channels and setup the 358 * channel table. We assume these are all 11b channels. 359 */ 360 buflen = sizeof(val); 361 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) 362 val = htole16(0x1fff); /* assume 1-11 */ 363 KASSERT(val != 0, ("wi_attach: no available channels listed!")); 364 365 val <<= 1; /* shift for base 1 indices */ 366 for (i = 1; i < 16; i++) { 367 struct ieee80211_channel *c; 368 369 if (!isset((u_int8_t*)&val, i)) 370 continue; 371 c = &ic->ic_channels[ic->ic_nchans++]; 372 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 373 c->ic_flags = IEEE80211_CHAN_B; 374 c->ic_ieee = i; 375 /* XXX txpowers? */ 376 } 377 378 /* 379 * Set flags based on firmware version. 380 */ 381 switch (sc->sc_firmware_type) { 382 case WI_LUCENT: 383 sc->sc_ntxbuf = 1; 384 ic->ic_caps |= IEEE80211_C_IBSS; 385 386 sc->sc_ibss_port = WI_PORTTYPE_BSS; 387 sc->sc_monitor_port = WI_PORTTYPE_ADHOC; 388 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; 389 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; 390 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 391 break; 392 case WI_INTERSIL: 393 sc->sc_ntxbuf = WI_NTXBUF; 394 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR 395 | WI_FLAGS_HAS_ROAMING; 396 /* 397 * Old firmware are slow, so give peace a chance. 398 */ 399 if (sc->sc_sta_firmware_ver < 10000) 400 sc->wi_cmd_count = 5000; 401 if (sc->sc_sta_firmware_ver > 10101) 402 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 403 ic->ic_caps |= IEEE80211_C_IBSS; 404 /* 405 * version 0.8.3 and newer are the only ones that are known 406 * to currently work. Earlier versions can be made to work, 407 * at least according to the Linux driver but we require 408 * monitor mode so this is irrelevant. 409 */ 410 ic->ic_caps |= IEEE80211_C_HOSTAP; 411 if (sc->sc_sta_firmware_ver >= 10603) 412 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; 413 if (sc->sc_sta_firmware_ver >= 10700) { 414 /* 415 * 1.7.0+ have the necessary support for sta mode WPA. 416 */ 417 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; 418 ic->ic_caps |= IEEE80211_C_WPA; 419 } 420 421 sc->sc_ibss_port = WI_PORTTYPE_IBSS; 422 sc->sc_monitor_port = WI_PORTTYPE_APSILENT; 423 sc->sc_min_rssi = WI_PRISM_MIN_RSSI; 424 sc->sc_max_rssi = WI_PRISM_MAX_RSSI; 425 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 426 break; 427 } 428 429 /* 430 * Find out if we support WEP on this card. 431 */ 432 buflen = sizeof(val); 433 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && 434 val != htole16(0)) 435 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; 436 437 /* Find supported rates. */ 438 buflen = sizeof(ratebuf); 439 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 440 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { 441 nrates = le16toh(*(u_int16_t *)ratebuf); 442 if (nrates > IEEE80211_RATE_MAXSIZE) 443 nrates = IEEE80211_RATE_MAXSIZE; 444 rs->rs_nrates = 0; 445 for (i = 0; i < nrates; i++) 446 if (ratebuf[2+i]) 447 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; 448 } else { 449 /* XXX fallback on error? */ 450 } 451 452 buflen = sizeof(val); 453 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 454 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { 455 sc->sc_dbm_offset = le16toh(val); 456 } 457 458 sc->sc_portnum = WI_DEFAULT_PORT; 459 460 ieee80211_ifattach(ic, macaddr); 461 ic->ic_raw_xmit = wi_raw_xmit; 462 ic->ic_scan_start = wi_scan_start; 463 ic->ic_scan_end = wi_scan_end; 464 ic->ic_set_channel = wi_set_channel; 465 466 ic->ic_vap_create = wi_vap_create; 467 ic->ic_vap_delete = wi_vap_delete; 468 ic->ic_update_mcast = wi_update_mcast; 469 ic->ic_update_promisc = wi_update_promisc; 470 471 ieee80211_radiotap_attach(ic, 472 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 473 WI_TX_RADIOTAP_PRESENT, 474 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 475 WI_RX_RADIOTAP_PRESENT); 476 477 if (bootverbose) 478 ieee80211_announce(ic); 479 480 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, 481 wi_intr, sc, &sc->wi_intrhand, NULL); 482 if (error) { 483 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 484 ieee80211_ifdetach(ic); 485 if_free(sc->sc_ifp); 486 wi_free(dev); 487 return error; 488 } 489 490 return (0); 491 } 492 493 int 494 wi_detach(device_t dev) 495 { 496 struct wi_softc *sc = device_get_softc(dev); 497 struct ifnet *ifp = sc->sc_ifp; 498 struct ieee80211com *ic = ifp->if_l2com; 499 500 WI_LOCK(sc); 501 502 /* check if device was removed */ 503 sc->wi_gone |= !bus_child_present(dev); 504 505 wi_stop_locked(sc, 0); 506 WI_UNLOCK(sc); 507 ieee80211_ifdetach(ic); 508 509 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); 510 if_free(sc->sc_ifp); 511 wi_free(dev); 512 lockuninit(&sc->sc_lock); 513 return (0); 514 } 515 516 static struct ieee80211vap * 517 wi_vap_create(struct ieee80211com *ic, 518 const char name[IFNAMSIZ], int unit, int opmode, int flags, 519 const uint8_t bssid[IEEE80211_ADDR_LEN], 520 const uint8_t mac[IEEE80211_ADDR_LEN]) 521 { 522 struct wi_softc *sc = ic->ic_ifp->if_softc; 523 struct wi_vap *wvp; 524 struct ieee80211vap *vap; 525 526 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 527 return NULL; 528 wvp = (struct wi_vap *) kmalloc(sizeof(struct wi_vap), 529 M_80211_VAP, M_NOWAIT | M_ZERO); 530 if (wvp == NULL) 531 return NULL; 532 533 vap = &wvp->wv_vap; 534 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 535 536 vap->iv_max_aid = WI_MAX_AID; 537 538 switch (opmode) { 539 case IEEE80211_M_STA: 540 sc->sc_porttype = WI_PORTTYPE_BSS; 541 wvp->wv_newstate = vap->iv_newstate; 542 vap->iv_newstate = wi_newstate_sta; 543 /* need to filter mgt frames to avoid confusing state machine */ 544 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 545 vap->iv_recv_mgmt = wi_recv_mgmt; 546 break; 547 case IEEE80211_M_IBSS: 548 sc->sc_porttype = sc->sc_ibss_port; 549 wvp->wv_newstate = vap->iv_newstate; 550 vap->iv_newstate = wi_newstate_sta; 551 break; 552 case IEEE80211_M_AHDEMO: 553 sc->sc_porttype = WI_PORTTYPE_ADHOC; 554 break; 555 case IEEE80211_M_HOSTAP: 556 sc->sc_porttype = WI_PORTTYPE_HOSTAP; 557 wvp->wv_newstate = vap->iv_newstate; 558 vap->iv_newstate = wi_newstate_hostap; 559 break; 560 case IEEE80211_M_MONITOR: 561 sc->sc_porttype = sc->sc_monitor_port; 562 break; 563 default: 564 break; 565 } 566 567 /* complete setup */ 568 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); 569 ic->ic_opmode = opmode; 570 return vap; 571 } 572 573 static void 574 wi_vap_delete(struct ieee80211vap *vap) 575 { 576 struct wi_vap *wvp = WI_VAP(vap); 577 578 ieee80211_vap_detach(vap); 579 kfree(wvp, M_80211_VAP); 580 } 581 582 int 583 wi_shutdown(device_t dev) 584 { 585 struct wi_softc *sc = device_get_softc(dev); 586 587 wi_stop(sc, 1); 588 return (0); 589 } 590 591 void 592 wi_intr(void *arg) 593 { 594 struct wi_softc *sc = arg; 595 struct ifnet *ifp = sc->sc_ifp; 596 u_int16_t status; 597 598 WI_LOCK(sc); 599 600 if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { 601 CSR_WRITE_2(sc, WI_INT_EN, 0); 602 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 603 WI_UNLOCK(sc); 604 return; 605 } 606 607 /* Disable interrupts. */ 608 CSR_WRITE_2(sc, WI_INT_EN, 0); 609 610 status = CSR_READ_2(sc, WI_EVENT_STAT); 611 if (status & WI_EV_RX) 612 wi_rx_intr(sc); 613 if (status & WI_EV_ALLOC) 614 wi_tx_intr(sc); 615 if (status & WI_EV_TX_EXC) 616 wi_tx_ex_intr(sc); 617 if (status & WI_EV_INFO) 618 wi_info_intr(sc); 619 if ((ifp->if_flags & IFF_OACTIVE) == 0 && 620 !ifq_is_empty(&ifp->if_snd)) 621 wi_start_locked(ifp); 622 623 /* Re-enable interrupts. */ 624 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 625 626 WI_UNLOCK(sc); 627 628 return; 629 } 630 631 static void 632 wi_enable(struct wi_softc *sc) 633 { 634 /* Enable interrupts */ 635 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 636 637 /* enable port */ 638 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 639 sc->sc_enabled = 1; 640 } 641 642 static int 643 wi_setup_locked(struct wi_softc *sc, int porttype, int mode, 644 uint8_t mac[IEEE80211_ADDR_LEN]) 645 { 646 int i; 647 648 wi_reset(sc); 649 650 wi_write_val(sc, WI_RID_PORTTYPE, porttype); 651 wi_write_val(sc, WI_RID_CREATE_IBSS, mode); 652 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); 653 /* XXX IEEE80211_BPF_NOACK wants 0 */ 654 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); 655 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 656 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ 657 658 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); 659 660 /* Allocate fids for the card */ 661 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 662 for (i = 0; i < sc->sc_ntxbuf; i++) { 663 int error = wi_alloc_fid(sc, sc->sc_buflen, 664 &sc->sc_txd[i].d_fid); 665 if (error) { 666 device_printf(sc->sc_dev, 667 "tx buffer allocation failed (error %u)\n", 668 error); 669 return error; 670 } 671 sc->sc_txd[i].d_len = 0; 672 } 673 sc->sc_txcur = sc->sc_txnext = 0; 674 675 return 0; 676 } 677 678 static void 679 wi_init_locked(struct wi_softc *sc) 680 { 681 struct ifnet *ifp = sc->sc_ifp; 682 int wasenabled; 683 684 WI_LOCK_ASSERT(sc); 685 686 wasenabled = sc->sc_enabled; 687 if (wasenabled) 688 wi_stop_locked(sc, 1); 689 690 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { 691 if_printf(ifp, "interface not running\n"); 692 wi_stop_locked(sc, 1); 693 return; 694 } 695 696 ifp->if_flags |= IFF_RUNNING; 697 ifp->if_flags &= ~IFF_OACTIVE; 698 699 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 700 701 wi_enable(sc); /* Enable desired port */ 702 } 703 704 void 705 wi_init(void *arg) 706 { 707 struct wi_softc *sc = arg; 708 struct ifnet *ifp = sc->sc_ifp; 709 struct ieee80211com *ic = ifp->if_l2com; 710 711 WI_LOCK(sc); 712 wi_init_locked(sc); 713 WI_UNLOCK(sc); 714 715 if (ifp->if_flags & IFF_RUNNING) 716 ieee80211_start_all(ic); /* start all vap's */ 717 } 718 719 static void 720 wi_stop_locked(struct wi_softc *sc, int disable) 721 { 722 struct ifnet *ifp = sc->sc_ifp; 723 724 WI_LOCK_ASSERT(sc); 725 726 if (sc->sc_enabled && !sc->wi_gone) { 727 CSR_WRITE_2(sc, WI_INT_EN, 0); 728 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 729 if (disable) 730 sc->sc_enabled = 0; 731 } else if (sc->wi_gone && disable) /* gone --> not enabled */ 732 sc->sc_enabled = 0; 733 734 callout_stop(&sc->sc_watchdog); 735 sc->sc_tx_timer = 0; 736 sc->sc_false_syns = 0; 737 738 ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING); 739 } 740 741 void 742 wi_stop(struct wi_softc *sc, int disable) 743 { 744 WI_LOCK(sc); 745 wi_stop_locked(sc, disable); 746 WI_UNLOCK(sc); 747 } 748 749 static void 750 wi_set_channel(struct ieee80211com *ic) 751 { 752 struct ifnet *ifp = ic->ic_ifp; 753 struct wi_softc *sc = ifp->if_softc; 754 755 DPRINTF(("%s: channel %d, %sscanning\n", __func__, 756 ieee80211_chan2ieee(ic, ic->ic_curchan), 757 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); 758 759 WI_LOCK(sc); 760 wi_write_val(sc, WI_RID_OWN_CHNL, 761 ieee80211_chan2ieee(ic, ic->ic_curchan)); 762 WI_UNLOCK(sc); 763 } 764 765 static void 766 wi_scan_start(struct ieee80211com *ic) 767 { 768 struct ifnet *ifp = ic->ic_ifp; 769 struct wi_softc *sc = ifp->if_softc; 770 struct ieee80211_scan_state *ss = ic->ic_scan; 771 772 DPRINTF(("%s\n", __func__)); 773 774 WI_LOCK(sc); 775 /* 776 * Switch device to monitor mode. 777 */ 778 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); 779 if (sc->sc_firmware_type == WI_INTERSIL) { 780 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 781 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 782 } 783 /* force full dwell time to compensate for firmware overhead */ 784 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); 785 WI_UNLOCK(sc); 786 787 } 788 789 static void 790 wi_scan_end(struct ieee80211com *ic) 791 { 792 struct ifnet *ifp = ic->ic_ifp; 793 struct wi_softc *sc = ifp->if_softc; 794 795 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); 796 797 WI_LOCK(sc); 798 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); 799 if (sc->sc_firmware_type == WI_INTERSIL) { 800 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 801 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 802 } 803 WI_UNLOCK(sc); 804 } 805 806 static void 807 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 808 int subtype, int rssi, int nf) 809 { 810 struct ieee80211vap *vap = ni->ni_vap; 811 812 switch (subtype) { 813 case IEEE80211_FC0_SUBTYPE_AUTH: 814 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 815 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 816 /* NB: filter frames that trigger state changes */ 817 return; 818 } 819 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); 820 } 821 822 static int 823 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 824 { 825 struct ieee80211com *ic = vap->iv_ic; 826 struct ifnet *ifp = ic->ic_ifp; 827 struct ieee80211_node *bss; 828 struct wi_softc *sc = ifp->if_softc; 829 830 DPRINTF(("%s: %s -> %s\n", __func__, 831 ieee80211_state_name[vap->iv_state], 832 ieee80211_state_name[nstate])); 833 834 if (nstate == IEEE80211_S_AUTH) { 835 WI_LOCK(sc); 836 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); 837 838 if (vap->iv_flags & IEEE80211_F_PMGTON) { 839 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 840 wi_write_val(sc, WI_RID_PM_ENABLED, 1); 841 } 842 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 843 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 844 wi_write_val(sc, WI_RID_FRAG_THRESH, 845 vap->iv_fragthreshold); 846 wi_write_txrate(sc, vap); 847 848 bss = vap->iv_bss; 849 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); 850 wi_write_val(sc, WI_RID_OWN_CHNL, 851 ieee80211_chan2ieee(ic, bss->ni_chan)); 852 853 /* Configure WEP. */ 854 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 855 wi_write_wep(sc, vap); 856 else 857 sc->sc_encryption = 0; 858 859 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 860 (vap->iv_flags & IEEE80211_F_WPA)) { 861 wi_write_val(sc, WI_RID_WPA_HANDLING, 1); 862 if (vap->iv_appie_wpa != NULL) 863 wi_write_appie(sc, WI_RID_WPA_DATA, 864 vap->iv_appie_wpa); 865 } 866 867 wi_enable(sc); /* enable port */ 868 869 /* Lucent firmware does not support the JOIN RID. */ 870 if (sc->sc_firmware_type == WI_INTERSIL) { 871 struct wi_joinreq join; 872 873 memset(&join, 0, sizeof(join)); 874 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); 875 join.wi_chan = htole16( 876 ieee80211_chan2ieee(ic, bss->ni_chan)); 877 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 878 } 879 WI_UNLOCK(sc); 880 881 /* 882 * NB: don't go through 802.11 layer, it'll send auth frame; 883 * instead we drive the state machine from the link status 884 * notification we get on association. 885 */ 886 vap->iv_state = nstate; 887 return (0); 888 } 889 return WI_VAP(vap)->wv_newstate(vap, nstate, arg); 890 } 891 892 static int 893 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 894 { 895 struct ieee80211com *ic = vap->iv_ic; 896 struct ifnet *ifp = ic->ic_ifp; 897 struct ieee80211_node *bss; 898 struct wi_softc *sc = ifp->if_softc; 899 int error; 900 901 DPRINTF(("%s: %s -> %s\n", __func__, 902 ieee80211_state_name[vap->iv_state], 903 ieee80211_state_name[nstate])); 904 905 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); 906 if (error == 0 && nstate == IEEE80211_S_RUN) { 907 WI_LOCK(sc); 908 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); 909 910 bss = vap->iv_bss; 911 wi_write_ssid(sc, WI_RID_OWN_SSID, 912 bss->ni_essid, bss->ni_esslen); 913 wi_write_val(sc, WI_RID_OWN_CHNL, 914 ieee80211_chan2ieee(ic, bss->ni_chan)); 915 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); 916 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); 917 wi_write_txrate(sc, vap); 918 919 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); 920 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); 921 922 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 923 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 924 wi_write_val(sc, WI_RID_FRAG_THRESH, 925 vap->iv_fragthreshold); 926 927 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && 928 (vap->iv_flags & IEEE80211_F_HIDESSID)) { 929 /* 930 * bit 0 means hide SSID in beacons, 931 * bit 1 means don't respond to bcast probe req 932 */ 933 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); 934 } 935 936 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 937 (vap->iv_flags & IEEE80211_F_WPA) && 938 vap->iv_appie_wpa != NULL) 939 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); 940 941 wi_write_val(sc, WI_RID_PROMISC, 0); 942 943 /* Configure WEP. */ 944 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 945 wi_write_wep(sc, vap); 946 else 947 sc->sc_encryption = 0; 948 949 wi_enable(sc); /* enable port */ 950 WI_UNLOCK(sc); 951 } 952 return error; 953 } 954 955 static void 956 wi_start_locked(struct ifnet *ifp) 957 { 958 struct wi_softc *sc = ifp->if_softc; 959 struct ieee80211_node *ni; 960 struct ieee80211_frame *wh; 961 struct mbuf *m0; 962 struct ieee80211_key *k; 963 struct wi_frame frmhdr; 964 const struct llc *llc; 965 int cur; 966 967 WI_LOCK_ASSERT(sc); 968 969 if (sc->wi_gone) 970 return; 971 972 memset(&frmhdr, 0, sizeof(frmhdr)); 973 cur = sc->sc_txnext; 974 for (;;) { 975 IF_DEQUEUE(&ifp->if_snd, m0); 976 if (m0 == NULL) 977 break; 978 if (sc->sc_txd[cur].d_len != 0) { 979 IF_PREPEND(&ifp->if_snd, m0); 980 ifp->if_flags |= IFF_OACTIVE; 981 break; 982 } 983 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; 984 985 /* reconstruct 802.3 header */ 986 wh = mtod(m0, struct ieee80211_frame *); 987 switch (wh->i_fc[1]) { 988 case IEEE80211_FC1_DIR_TODS: 989 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 990 wh->i_addr2); 991 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 992 wh->i_addr3); 993 break; 994 case IEEE80211_FC1_DIR_NODS: 995 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 996 wh->i_addr2); 997 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 998 wh->i_addr1); 999 break; 1000 case IEEE80211_FC1_DIR_FROMDS: 1001 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 1002 wh->i_addr3); 1003 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 1004 wh->i_addr1); 1005 break; 1006 } 1007 llc = (const struct llc *)( 1008 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); 1009 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; 1010 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1011 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1012 k = ieee80211_crypto_encap(ni, m0); 1013 if (k == NULL) { 1014 ieee80211_free_node(ni); 1015 m_freem(m0); 1016 continue; 1017 } 1018 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1019 } 1020 1021 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 1022 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1023 ieee80211_radiotap_tx(ni->ni_vap, m0); 1024 } 1025 1026 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1027 (caddr_t)&frmhdr.wi_whdr); 1028 m_adj(m0, sizeof(struct ieee80211_frame)); 1029 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1030 ieee80211_free_node(ni); 1031 if (wi_start_tx(ifp, &frmhdr, m0)) 1032 continue; 1033 1034 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1035 ifp->if_opackets++; 1036 } 1037 } 1038 1039 static void 1040 wi_start(struct ifnet *ifp) 1041 { 1042 struct wi_softc *sc = ifp->if_softc; 1043 1044 WI_LOCK(sc); 1045 wi_start_locked(ifp); 1046 WI_UNLOCK(sc); 1047 } 1048 1049 static int 1050 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) 1051 { 1052 struct wi_softc *sc = ifp->if_softc; 1053 int cur = sc->sc_txnext; 1054 int fid, off, error; 1055 1056 fid = sc->sc_txd[cur].d_fid; 1057 off = sizeof(*frmhdr); 1058 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 1059 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; 1060 m_freem(m0); 1061 if (error) { 1062 ifp->if_oerrors++; 1063 return -1; 1064 } 1065 sc->sc_txd[cur].d_len = off; 1066 if (sc->sc_txcur == cur) { 1067 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1068 if_printf(ifp, "xmit failed\n"); 1069 sc->sc_txd[cur].d_len = 0; 1070 return -1; 1071 } 1072 sc->sc_tx_timer = 5; 1073 } 1074 return 0; 1075 } 1076 1077 static int 1078 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, 1079 const struct ieee80211_bpf_params *params) 1080 { 1081 struct ieee80211com *ic = ni->ni_ic; 1082 struct ifnet *ifp = ic->ic_ifp; 1083 struct ieee80211vap *vap = ni->ni_vap; 1084 struct wi_softc *sc = ifp->if_softc; 1085 struct ieee80211_key *k; 1086 struct ieee80211_frame *wh; 1087 struct wi_frame frmhdr; 1088 int cur; 1089 int rc = 0; 1090 1091 WI_LOCK(sc); 1092 1093 if (sc->wi_gone) { 1094 rc = ENETDOWN; 1095 goto out; 1096 } 1097 memset(&frmhdr, 0, sizeof(frmhdr)); 1098 cur = sc->sc_txnext; 1099 if (sc->sc_txd[cur].d_len != 0) { 1100 ifp->if_flags |= IFF_OACTIVE; 1101 rc = ENOBUFS; 1102 goto out; 1103 } 1104 m0->m_pkthdr.rcvif = NULL; 1105 1106 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1107 (caddr_t)&frmhdr.wi_ehdr); 1108 frmhdr.wi_ehdr.ether_type = 0; 1109 wh = mtod(m0, struct ieee80211_frame *); 1110 1111 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1112 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) 1113 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1114 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) && 1115 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { 1116 k = ieee80211_crypto_encap(ni, m0); 1117 if (k == NULL) { 1118 rc = ENOMEM; 1119 goto out; 1120 } 1121 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1122 } 1123 if (ieee80211_radiotap_active_vap(vap)) { 1124 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1125 ieee80211_radiotap_tx(vap, m0); 1126 } 1127 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1128 (caddr_t)&frmhdr.wi_whdr); 1129 m_adj(m0, sizeof(struct ieee80211_frame)); 1130 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1131 if (wi_start_tx(ifp, &frmhdr, m0) < 0) { 1132 m0 = NULL; 1133 rc = EIO; 1134 goto out; 1135 } 1136 m0 = NULL; 1137 1138 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1139 out: 1140 WI_UNLOCK(sc); 1141 1142 if (m0 != NULL) 1143 m_freem(m0); 1144 ieee80211_free_node(ni); 1145 return rc; 1146 } 1147 1148 static int 1149 wi_reset(struct wi_softc *sc) 1150 { 1151 #define WI_INIT_TRIES 3 1152 int i, error = 0; 1153 1154 for (i = 0; i < WI_INIT_TRIES; i++) { 1155 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); 1156 if (error == 0) 1157 break; 1158 DELAY(WI_DELAY * 1000); 1159 } 1160 sc->sc_reset = 1; 1161 if (i == WI_INIT_TRIES) { 1162 if_printf(sc->sc_ifp, "reset failed\n"); 1163 return error; 1164 } 1165 1166 CSR_WRITE_2(sc, WI_INT_EN, 0); 1167 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 1168 1169 /* Calibrate timer. */ 1170 wi_write_val(sc, WI_RID_TICK_TIME, 8); 1171 1172 return 0; 1173 #undef WI_INIT_TRIES 1174 } 1175 1176 static void 1177 wi_watchdog(void *arg) 1178 { 1179 struct wi_softc *sc = arg; 1180 struct ifnet *ifp = sc->sc_ifp; 1181 1182 WI_LOCK(sc); 1183 1184 if (!sc->sc_enabled) 1185 return; 1186 1187 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 1188 if_printf(ifp, "device timeout\n"); 1189 ifp->if_oerrors++; 1190 wi_init_locked(ifp->if_softc); 1191 return; 1192 } 1193 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 1194 } 1195 1196 static int 1197 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) 1198 { 1199 struct wi_softc *sc = ifp->if_softc; 1200 struct ieee80211com *ic = ifp->if_l2com; 1201 struct ifreq *ifr = (struct ifreq *) data; 1202 int error = 0, startall = 0; 1203 1204 switch (cmd) { 1205 case SIOCSIFFLAGS: 1206 WI_LOCK(sc); 1207 /* 1208 * Can't do promisc and hostap at the same time. If all that's 1209 * changing is the promisc flag, try to short-circuit a call to 1210 * wi_init() by just setting PROMISC in the hardware. 1211 */ 1212 if (ifp->if_flags & IFF_UP) { 1213 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1214 ifp->if_flags & IFF_RUNNING) { 1215 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { 1216 wi_write_val(sc, WI_RID_PROMISC, 1217 (ifp->if_flags & IFF_PROMISC) != 0); 1218 } else { 1219 wi_init_locked(sc); 1220 startall = 1; 1221 } 1222 } else { 1223 wi_init_locked(sc); 1224 startall = 1; 1225 } 1226 } else { 1227 if (ifp->if_flags & IFF_RUNNING) 1228 wi_stop_locked(sc, 1); 1229 sc->wi_gone = 0; 1230 } 1231 sc->sc_if_flags = ifp->if_flags; 1232 WI_UNLOCK(sc); 1233 if (startall) 1234 ieee80211_start_all(ic); 1235 break; 1236 case SIOCGIFMEDIA: 1237 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1238 break; 1239 case SIOCGIFADDR: 1240 error = ether_ioctl(ifp, cmd, data); 1241 break; 1242 default: 1243 error = EINVAL; 1244 break; 1245 } 1246 return error; 1247 } 1248 1249 static void 1250 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1251 { 1252 struct ieee80211vap *vap = ifp->if_softc; 1253 struct ieee80211com *ic = vap->iv_ic; 1254 struct wi_softc *sc = ic->ic_ifp->if_softc; 1255 u_int16_t val; 1256 int rate, len; 1257 1258 len = sizeof(val); 1259 if (sc->sc_enabled && 1260 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && 1261 len == sizeof(val)) { 1262 /* convert to 802.11 rate */ 1263 val = le16toh(val); 1264 rate = val * 2; 1265 if (sc->sc_firmware_type == WI_LUCENT) { 1266 if (rate == 10) 1267 rate = 11; /* 5.5Mbps */ 1268 } else { 1269 if (rate == 4*2) 1270 rate = 11; /* 5.5Mbps */ 1271 else if (rate == 8*2) 1272 rate = 22; /* 11Mbps */ 1273 } 1274 vap->iv_bss->ni_txrate = rate; 1275 } 1276 ieee80211_media_status(ifp, imr); 1277 } 1278 1279 static void 1280 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1281 { 1282 struct ifnet *ifp = sc->sc_ifp; 1283 struct ieee80211com *ic = ifp->if_l2com; 1284 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1285 struct ieee80211_node *ni = vap->iv_bss; 1286 1287 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1288 return; 1289 1290 DPRINTF(("wi_sync_bssid: bssid %6D -> ", ni->ni_bssid, ":")); 1291 DPRINTF(("%6D ?\n", new_bssid, ":")); 1292 1293 /* In promiscuous mode, the BSSID field is not a reliable 1294 * indicator of the firmware's BSSID. Damp spurious 1295 * change-of-BSSID indications. 1296 */ 1297 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1298 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1299 WI_MAX_FALSE_SYNS)) 1300 return; 1301 1302 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1303 #if 0 1304 /* 1305 * XXX hack; we should create a new node with the new bssid 1306 * and replace the existing ic_bss with it but since we don't 1307 * process management frames to collect state we cheat by 1308 * reusing the existing node as we know wi_newstate will be 1309 * called and it will overwrite the node state. 1310 */ 1311 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1312 #endif 1313 } 1314 1315 static __noinline void 1316 wi_rx_intr(struct wi_softc *sc) 1317 { 1318 struct ifnet *ifp = sc->sc_ifp; 1319 struct ieee80211com *ic = ifp->if_l2com; 1320 struct wi_frame frmhdr; 1321 struct mbuf *m; 1322 struct ieee80211_frame *wh; 1323 struct ieee80211_node *ni; 1324 int fid, len, off; 1325 u_int8_t dir; 1326 u_int16_t status; 1327 int8_t rssi, nf; 1328 1329 fid = CSR_READ_2(sc, WI_RX_FID); 1330 1331 /* First read in the frame header */ 1332 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1333 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1334 ifp->if_ierrors++; 1335 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); 1336 return; 1337 } 1338 1339 /* 1340 * Drop undecryptable or packets with receive errors here 1341 */ 1342 status = le16toh(frmhdr.wi_status); 1343 if (status & WI_STAT_ERRSTAT) { 1344 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1345 ifp->if_ierrors++; 1346 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1347 return; 1348 } 1349 1350 len = le16toh(frmhdr.wi_dat_len); 1351 off = ALIGN(sizeof(struct ieee80211_frame)); 1352 1353 /* 1354 * Sometimes the PRISM2.x returns bogusly large frames. Except 1355 * in monitor mode, just throw them away. 1356 */ 1357 if (off + len > MCLBYTES) { 1358 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1359 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1360 ifp->if_ierrors++; 1361 DPRINTF(("wi_rx_intr: oversized packet\n")); 1362 return; 1363 } else 1364 len = 0; 1365 } 1366 1367 if (off + len > MHLEN) 1368 m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); 1369 else 1370 m = m_gethdr(MB_DONTWAIT, MT_DATA); 1371 if (m == NULL) { 1372 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1373 ifp->if_ierrors++; 1374 DPRINTF(("wi_rx_intr: MGET failed\n")); 1375 return; 1376 } 1377 m->m_data += off - sizeof(struct ieee80211_frame); 1378 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1379 wi_read_bap(sc, fid, sizeof(frmhdr), 1380 m->m_data + sizeof(struct ieee80211_frame), len); 1381 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1382 m->m_pkthdr.rcvif = ifp; 1383 1384 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1385 1386 rssi = frmhdr.wi_rx_signal; 1387 nf = frmhdr.wi_rx_silence; 1388 if (ieee80211_radiotap_active(ic)) { 1389 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; 1390 uint32_t rstamp; 1391 1392 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1393 le16toh(frmhdr.wi_rx_tstamp1); 1394 tap->wr_tsf = htole64((uint64_t)rstamp); 1395 /* XXX replace divide by table */ 1396 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1397 tap->wr_flags = 0; 1398 if (frmhdr.wi_status & WI_STAT_PCF) 1399 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1400 if (m->m_flags & M_WEP) 1401 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; 1402 tap->wr_antsignal = rssi; 1403 tap->wr_antnoise = nf; 1404 } 1405 1406 /* synchronize driver's BSSID with firmware's BSSID */ 1407 wh = mtod(m, struct ieee80211_frame *); 1408 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1409 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1410 wi_sync_bssid(sc, wh->i_addr3); 1411 1412 WI_UNLOCK(sc); 1413 1414 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1415 if (ni != NULL) { 1416 (void) ieee80211_input(ni, m, rssi, nf); 1417 ieee80211_free_node(ni); 1418 } else 1419 (void) ieee80211_input_all(ic, m, rssi, nf); 1420 1421 WI_LOCK(sc); 1422 } 1423 1424 static __noinline void 1425 wi_tx_ex_intr(struct wi_softc *sc) 1426 { 1427 struct ifnet *ifp = sc->sc_ifp; 1428 struct wi_frame frmhdr; 1429 int fid; 1430 1431 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1432 /* Read in the frame header */ 1433 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { 1434 u_int16_t status = le16toh(frmhdr.wi_status); 1435 /* 1436 * Spontaneous station disconnects appear as xmit 1437 * errors. Don't announce them and/or count them 1438 * as an output error. 1439 */ 1440 if ((status & WI_TXSTAT_DISCONNECT) == 0) { 1441 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1442 if_printf(ifp, "tx failed"); 1443 if (status & WI_TXSTAT_RET_ERR) 1444 kprintf(", retry limit exceeded"); 1445 if (status & WI_TXSTAT_AGED_ERR) 1446 kprintf(", max transmit lifetime exceeded"); 1447 if (status & WI_TXSTAT_DISCONNECT) 1448 kprintf(", port disconnected"); 1449 if (status & WI_TXSTAT_FORM_ERR) 1450 kprintf(", invalid format (data len %u src %6D)", 1451 le16toh(frmhdr.wi_dat_len), 1452 frmhdr.wi_ehdr.ether_shost, ":"); 1453 if (status & ~0xf) 1454 kprintf(", status=0x%x", status); 1455 kprintf("\n"); 1456 } 1457 ifp->if_oerrors++; 1458 } else { 1459 DPRINTF(("port disconnected\n")); 1460 ifp->if_collisions++; /* XXX */ 1461 } 1462 } else 1463 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); 1464 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); 1465 } 1466 1467 static __noinline void 1468 wi_tx_intr(struct wi_softc *sc) 1469 { 1470 struct ifnet *ifp = sc->sc_ifp; 1471 int fid, cur; 1472 1473 if (sc->wi_gone) 1474 return; 1475 1476 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1477 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1478 1479 cur = sc->sc_txcur; 1480 if (sc->sc_txd[cur].d_fid != fid) { 1481 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", 1482 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); 1483 return; 1484 } 1485 sc->sc_tx_timer = 0; 1486 sc->sc_txd[cur].d_len = 0; 1487 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; 1488 if (sc->sc_txd[cur].d_len == 0) 1489 ifp->if_flags &= ~IFF_OACTIVE; 1490 else { 1491 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 1492 0, 0)) { 1493 if_printf(ifp, "xmit failed\n"); 1494 sc->sc_txd[cur].d_len = 0; 1495 } else { 1496 sc->sc_tx_timer = 5; 1497 } 1498 } 1499 } 1500 1501 static __noinline void 1502 wi_info_intr(struct wi_softc *sc) 1503 { 1504 struct ifnet *ifp = sc->sc_ifp; 1505 struct ieee80211com *ic = ifp->if_l2com; 1506 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1507 int i, fid, len, off; 1508 u_int16_t ltbuf[2]; 1509 u_int16_t stat; 1510 u_int32_t *ptr; 1511 1512 fid = CSR_READ_2(sc, WI_INFO_FID); 1513 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1514 1515 switch (le16toh(ltbuf[1])) { 1516 case WI_INFO_LINK_STAT: 1517 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1518 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1519 switch (le16toh(stat)) { 1520 case WI_INFO_LINK_STAT_CONNECTED: 1521 if (vap->iv_state == IEEE80211_S_RUN && 1522 vap->iv_opmode != IEEE80211_M_IBSS) 1523 break; 1524 /* fall thru... */ 1525 case WI_INFO_LINK_STAT_AP_CHG: 1526 IEEE80211_LOCK(ic); 1527 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ 1528 ieee80211_new_state(vap, IEEE80211_S_RUN, 0); 1529 IEEE80211_UNLOCK(ic); 1530 break; 1531 case WI_INFO_LINK_STAT_AP_INR: 1532 break; 1533 case WI_INFO_LINK_STAT_DISCONNECTED: 1534 /* we dropped off the net; e.g. due to deauth/disassoc */ 1535 IEEE80211_LOCK(ic); 1536 vap->iv_bss->ni_associd = 0; 1537 vap->iv_stats.is_rx_deauth++; 1538 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); 1539 IEEE80211_UNLOCK(ic); 1540 break; 1541 case WI_INFO_LINK_STAT_AP_OOR: 1542 /* XXX does this need to be per-vap? */ 1543 ieee80211_beacon_miss(ic); 1544 break; 1545 case WI_INFO_LINK_STAT_ASSOC_FAILED: 1546 if (vap->iv_opmode == IEEE80211_M_STA) 1547 ieee80211_new_state(vap, IEEE80211_S_SCAN, 1548 IEEE80211_SCAN_FAIL_TIMEOUT); 1549 break; 1550 } 1551 break; 1552 case WI_INFO_COUNTERS: 1553 /* some card versions have a larger stats structure */ 1554 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1555 ptr = (u_int32_t *)&sc->sc_stats; 1556 off = sizeof(ltbuf); 1557 for (i = 0; i < len; i++, off += 2, ptr++) { 1558 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1559 #ifdef WI_HERMES_STATS_WAR 1560 if (stat & 0xf000) 1561 stat = ~stat; 1562 #endif 1563 *ptr += stat; 1564 } 1565 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + 1566 sc->sc_stats.wi_tx_multi_retries + 1567 sc->sc_stats.wi_tx_retry_limit; 1568 break; 1569 default: 1570 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1571 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1572 break; 1573 } 1574 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); 1575 } 1576 1577 static int 1578 wi_write_multi(struct wi_softc *sc) 1579 { 1580 struct ifnet *ifp = sc->sc_ifp; 1581 int n; 1582 struct ifmultiaddr *ifma; 1583 struct wi_mcast mlist; 1584 1585 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1586 allmulti: 1587 memset(&mlist, 0, sizeof(mlist)); 1588 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1589 sizeof(mlist)); 1590 } 1591 1592 n = 0; 1593 #ifdef __FreeBSD__ 1594 if_maddr_rlock(ifp); 1595 #endif 1596 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1597 if (ifma->ifma_addr->sa_family != AF_LINK) 1598 continue; 1599 if (n >= 16) 1600 goto allmulti; 1601 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], 1602 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); 1603 n++; 1604 } 1605 #ifdef __FreeBSD__ 1606 if_maddr_runlock(ifp); 1607 #endif 1608 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1609 IEEE80211_ADDR_LEN * n); 1610 } 1611 1612 static void 1613 wi_update_mcast(struct ifnet *ifp) 1614 { 1615 wi_write_multi(ifp->if_softc); 1616 } 1617 1618 static void 1619 wi_update_promisc(struct ifnet *ifp) 1620 { 1621 struct wi_softc *sc = ifp->if_softc; 1622 struct ieee80211com *ic = ifp->if_l2com; 1623 1624 WI_LOCK(sc); 1625 /* XXX handle WEP special case handling? */ 1626 wi_write_val(sc, WI_RID_PROMISC, 1627 (ic->ic_opmode == IEEE80211_M_MONITOR || 1628 (ifp->if_flags & IFF_PROMISC))); 1629 WI_UNLOCK(sc); 1630 } 1631 1632 static void 1633 wi_read_nicid(struct wi_softc *sc) 1634 { 1635 struct wi_card_ident *id; 1636 char *p; 1637 int len; 1638 u_int16_t ver[4]; 1639 1640 /* getting chip identity */ 1641 memset(ver, 0, sizeof(ver)); 1642 len = sizeof(ver); 1643 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1644 1645 sc->sc_firmware_type = WI_NOTYPE; 1646 sc->sc_nic_id = le16toh(ver[0]); 1647 for (id = wi_card_ident; id->card_name != NULL; id++) { 1648 if (sc->sc_nic_id == id->card_id) { 1649 sc->sc_nic_name = id->card_name; 1650 sc->sc_firmware_type = id->firm_type; 1651 break; 1652 } 1653 } 1654 if (sc->sc_firmware_type == WI_NOTYPE) { 1655 if (sc->sc_nic_id & 0x8000) { 1656 sc->sc_firmware_type = WI_INTERSIL; 1657 sc->sc_nic_name = "Unknown Prism chip"; 1658 } else { 1659 sc->sc_firmware_type = WI_LUCENT; 1660 sc->sc_nic_name = "Unknown Lucent chip"; 1661 } 1662 } 1663 if (bootverbose) 1664 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); 1665 1666 /* get primary firmware version (Only Prism chips) */ 1667 if (sc->sc_firmware_type != WI_LUCENT) { 1668 memset(ver, 0, sizeof(ver)); 1669 len = sizeof(ver); 1670 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 1671 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 1672 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1673 } 1674 1675 /* get station firmware version */ 1676 memset(ver, 0, sizeof(ver)); 1677 len = sizeof(ver); 1678 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 1679 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 1680 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1681 if (sc->sc_firmware_type == WI_INTERSIL && 1682 (sc->sc_sta_firmware_ver == 10102 || 1683 sc->sc_sta_firmware_ver == 20102)) { 1684 char ident[12]; 1685 memset(ident, 0, sizeof(ident)); 1686 len = sizeof(ident); 1687 /* value should be the format like "V2.00-11" */ 1688 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 1689 *(p = (char *)ident) >= 'A' && 1690 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 1691 sc->sc_firmware_type = WI_SYMBOL; 1692 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + 1693 (p[3] - '0') * 1000 + (p[4] - '0') * 100 + 1694 (p[6] - '0') * 10 + (p[7] - '0'); 1695 } 1696 } 1697 if (bootverbose) { 1698 device_printf(sc->sc_dev, "%s Firmware: ", 1699 wi_firmware_names[sc->sc_firmware_type]); 1700 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 1701 kprintf("Primary (%u.%u.%u), ", 1702 sc->sc_pri_firmware_ver / 10000, 1703 (sc->sc_pri_firmware_ver % 10000) / 100, 1704 sc->sc_pri_firmware_ver % 100); 1705 kprintf("Station (%u.%u.%u)\n", 1706 sc->sc_sta_firmware_ver / 10000, 1707 (sc->sc_sta_firmware_ver % 10000) / 100, 1708 sc->sc_sta_firmware_ver % 100); 1709 } 1710 } 1711 1712 static int 1713 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 1714 { 1715 struct wi_ssid ssid; 1716 1717 if (buflen > IEEE80211_NWID_LEN) 1718 return ENOBUFS; 1719 memset(&ssid, 0, sizeof(ssid)); 1720 ssid.wi_len = htole16(buflen); 1721 memcpy(ssid.wi_ssid, buf, buflen); 1722 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 1723 } 1724 1725 static int 1726 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) 1727 { 1728 static const uint16_t lucent_rates[12] = { 1729 [ 0] = 3, /* auto */ 1730 [ 1] = 1, /* 1Mb/s */ 1731 [ 2] = 2, /* 2Mb/s */ 1732 [ 5] = 4, /* 5.5Mb/s */ 1733 [11] = 5 /* 11Mb/s */ 1734 }; 1735 static const uint16_t intersil_rates[12] = { 1736 [ 0] = 0xf, /* auto */ 1737 [ 1] = 0, /* 1Mb/s */ 1738 [ 2] = 1, /* 2Mb/s */ 1739 [ 5] = 2, /* 5.5Mb/s */ 1740 [11] = 3, /* 11Mb/s */ 1741 }; 1742 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? 1743 lucent_rates : intersil_rates; 1744 struct ieee80211com *ic = vap->iv_ic; 1745 const struct ieee80211_txparam *tp; 1746 1747 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 1748 return wi_write_val(sc, WI_RID_TX_RATE, 1749 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? 1750 rates[0] : rates[tp->ucastrate / 2])); 1751 } 1752 1753 static int 1754 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) 1755 { 1756 int error = 0; 1757 int i, keylen; 1758 u_int16_t val; 1759 struct wi_key wkey[IEEE80211_WEP_NKID]; 1760 1761 switch (sc->sc_firmware_type) { 1762 case WI_LUCENT: 1763 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 1764 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 1765 if (error) 1766 break; 1767 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) 1768 break; 1769 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); 1770 if (error) 1771 break; 1772 memset(wkey, 0, sizeof(wkey)); 1773 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1774 keylen = vap->iv_nw_keys[i].wk_keylen; 1775 wkey[i].wi_keylen = htole16(keylen); 1776 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, 1777 keylen); 1778 } 1779 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 1780 wkey, sizeof(wkey)); 1781 sc->sc_encryption = 0; 1782 break; 1783 1784 case WI_INTERSIL: 1785 val = HOST_ENCRYPT | HOST_DECRYPT; 1786 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 1787 /* 1788 * ONLY HWB3163 EVAL-CARD Firmware version 1789 * less than 0.8 variant2 1790 * 1791 * If promiscuous mode disable, Prism2 chip 1792 * does not work with WEP . 1793 * It is under investigation for details. 1794 * (ichiro@netbsd.org) 1795 */ 1796 if (sc->sc_sta_firmware_ver < 802 ) { 1797 /* firm ver < 0.8 variant 2 */ 1798 wi_write_val(sc, WI_RID_PROMISC, 1); 1799 } 1800 wi_write_val(sc, WI_RID_CNFAUTHMODE, 1801 vap->iv_bss->ni_authmode); 1802 val |= PRIVACY_INVOKED; 1803 } else { 1804 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); 1805 } 1806 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 1807 if (error) 1808 break; 1809 sc->sc_encryption = val; 1810 if ((val & PRIVACY_INVOKED) == 0) 1811 break; 1812 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); 1813 break; 1814 } 1815 return error; 1816 } 1817 1818 static int 1819 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 1820 { 1821 int i, s = 0; 1822 1823 if (sc->wi_gone) 1824 return (ENODEV); 1825 1826 /* wait for the busy bit to clear */ 1827 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ 1828 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 1829 break; 1830 DELAY(1*1000); /* 1ms */ 1831 } 1832 if (i == 0) { 1833 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", 1834 __func__, cmd); 1835 sc->wi_gone = 1; 1836 return(ETIMEDOUT); 1837 } 1838 1839 CSR_WRITE_2(sc, WI_PARAM0, val0); 1840 CSR_WRITE_2(sc, WI_PARAM1, val1); 1841 CSR_WRITE_2(sc, WI_PARAM2, val2); 1842 CSR_WRITE_2(sc, WI_COMMAND, cmd); 1843 1844 if (cmd == WI_CMD_INI) { 1845 /* XXX: should sleep here. */ 1846 DELAY(100*1000); /* 100ms delay for init */ 1847 } 1848 for (i = 0; i < WI_TIMEOUT; i++) { 1849 /* 1850 * Wait for 'command complete' bit to be 1851 * set in the event status register. 1852 */ 1853 s = CSR_READ_2(sc, WI_EVENT_STAT); 1854 if (s & WI_EV_CMD) { 1855 /* Ack the event and read result code. */ 1856 s = CSR_READ_2(sc, WI_STATUS); 1857 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1858 if (s & WI_STAT_CMD_RESULT) { 1859 return(EIO); 1860 } 1861 break; 1862 } 1863 DELAY(WI_DELAY); 1864 } 1865 1866 if (i == WI_TIMEOUT) { 1867 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " 1868 "event status 0x%04x\n", __func__, cmd, s); 1869 if (s == 0xffff) 1870 sc->wi_gone = 1; 1871 return(ETIMEDOUT); 1872 } 1873 return (0); 1874 } 1875 1876 static int 1877 wi_seek_bap(struct wi_softc *sc, int id, int off) 1878 { 1879 int i, status; 1880 1881 CSR_WRITE_2(sc, WI_SEL0, id); 1882 CSR_WRITE_2(sc, WI_OFF0, off); 1883 1884 for (i = 0; ; i++) { 1885 status = CSR_READ_2(sc, WI_OFF0); 1886 if ((status & WI_OFF_BUSY) == 0) 1887 break; 1888 if (i == WI_TIMEOUT) { 1889 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", 1890 __func__, id, off); 1891 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1892 if (status == 0xffff) 1893 sc->wi_gone = 1; 1894 return ETIMEDOUT; 1895 } 1896 DELAY(1); 1897 } 1898 if (status & WI_OFF_ERR) { 1899 device_printf(sc->sc_dev, "%s: error, id %x off %x\n", 1900 __func__, id, off); 1901 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1902 return EIO; 1903 } 1904 sc->sc_bap_id = id; 1905 sc->sc_bap_off = off; 1906 return 0; 1907 } 1908 1909 static int 1910 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1911 { 1912 u_int16_t *ptr; 1913 int i, error, cnt; 1914 1915 if (buflen == 0) 1916 return 0; 1917 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1918 if ((error = wi_seek_bap(sc, id, off)) != 0) 1919 return error; 1920 } 1921 cnt = (buflen + 1) / 2; 1922 ptr = (u_int16_t *)buf; 1923 for (i = 0; i < cnt; i++) 1924 *ptr++ = CSR_READ_2(sc, WI_DATA0); 1925 sc->sc_bap_off += cnt * 2; 1926 return 0; 1927 } 1928 1929 static int 1930 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1931 { 1932 u_int16_t *ptr; 1933 int i, error, cnt; 1934 1935 if (buflen == 0) 1936 return 0; 1937 1938 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1939 if ((error = wi_seek_bap(sc, id, off)) != 0) 1940 return error; 1941 } 1942 cnt = (buflen + 1) / 2; 1943 ptr = (u_int16_t *)buf; 1944 for (i = 0; i < cnt; i++) 1945 CSR_WRITE_2(sc, WI_DATA0, ptr[i]); 1946 sc->sc_bap_off += cnt * 2; 1947 1948 return 0; 1949 } 1950 1951 static int 1952 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 1953 { 1954 int error, len; 1955 struct mbuf *m; 1956 1957 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 1958 if (m->m_len == 0) 1959 continue; 1960 1961 len = min(m->m_len, totlen); 1962 1963 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 1964 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 1965 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 1966 totlen); 1967 } 1968 1969 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 1970 return error; 1971 1972 off += m->m_len; 1973 totlen -= len; 1974 } 1975 return 0; 1976 } 1977 1978 static int 1979 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 1980 { 1981 int i; 1982 1983 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 1984 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", 1985 __func__, len); 1986 return ENOMEM; 1987 } 1988 1989 for (i = 0; i < WI_TIMEOUT; i++) { 1990 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 1991 break; 1992 DELAY(1); 1993 } 1994 if (i == WI_TIMEOUT) { 1995 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); 1996 return ETIMEDOUT; 1997 } 1998 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 1999 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 2000 return 0; 2001 } 2002 2003 static int 2004 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 2005 { 2006 int error, len; 2007 u_int16_t ltbuf[2]; 2008 2009 /* Tell the NIC to enter record read mode. */ 2010 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 2011 if (error) 2012 return error; 2013 2014 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2015 if (error) 2016 return error; 2017 2018 if (le16toh(ltbuf[1]) != rid) { 2019 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 2020 rid, le16toh(ltbuf[1])); 2021 return EIO; 2022 } 2023 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 2024 if (*buflenp < len) { 2025 device_printf(sc->sc_dev, "record buffer is too small, " 2026 "rid=%x, size=%d, len=%d\n", 2027 rid, *buflenp, len); 2028 return ENOSPC; 2029 } 2030 *buflenp = len; 2031 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 2032 } 2033 2034 static int 2035 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 2036 { 2037 int error; 2038 u_int16_t ltbuf[2]; 2039 2040 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 2041 ltbuf[1] = htole16(rid); 2042 2043 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2044 if (error) { 2045 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", 2046 __func__, rid); 2047 return error; 2048 } 2049 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2050 if (error) { 2051 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", 2052 __func__, rid); 2053 return error; 2054 } 2055 2056 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2057 } 2058 2059 static int 2060 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) 2061 { 2062 /* NB: 42 bytes is probably ok to have on the stack */ 2063 char buf[sizeof(uint16_t) + 40]; 2064 2065 if (ie->ie_len > 40) 2066 return EINVAL; 2067 /* NB: firmware requires 16-bit ie length before ie data */ 2068 *(uint16_t *) buf = htole16(ie->ie_len); 2069 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); 2070 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); 2071 } 2072 2073 int 2074 wi_alloc(device_t dev, int rid) 2075 { 2076 struct wi_softc *sc = device_get_softc(dev); 2077 2078 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 2079 sc->iobase_rid = rid; 2080 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, 2081 &sc->iobase_rid, 0, ~0, (1 << 6), 2082 rman_make_alignment_flags(1 << 6) | RF_ACTIVE); 2083 if (sc->iobase == NULL) { 2084 device_printf(dev, "No I/O space?!\n"); 2085 return ENXIO; 2086 } 2087 2088 sc->wi_io_addr = rman_get_start(sc->iobase); 2089 sc->wi_btag = rman_get_bustag(sc->iobase); 2090 sc->wi_bhandle = rman_get_bushandle(sc->iobase); 2091 } else { 2092 sc->mem_rid = rid; 2093 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 2094 &sc->mem_rid, RF_ACTIVE); 2095 if (sc->mem == NULL) { 2096 device_printf(dev, "No Mem space on prism2.5?\n"); 2097 return ENXIO; 2098 } 2099 2100 sc->wi_btag = rman_get_bustag(sc->mem); 2101 sc->wi_bhandle = rman_get_bushandle(sc->mem); 2102 } 2103 2104 sc->irq_rid = 0; 2105 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 2106 RF_ACTIVE | 2107 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); 2108 if (sc->irq == NULL) { 2109 wi_free(dev); 2110 device_printf(dev, "No irq?!\n"); 2111 return ENXIO; 2112 } 2113 2114 sc->sc_dev = dev; 2115 sc->sc_unit = device_get_unit(dev); 2116 return 0; 2117 } 2118 2119 void 2120 wi_free(device_t dev) 2121 { 2122 struct wi_softc *sc = device_get_softc(dev); 2123 2124 if (sc->iobase != NULL) { 2125 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); 2126 sc->iobase = NULL; 2127 } 2128 if (sc->irq != NULL) { 2129 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 2130 sc->irq = NULL; 2131 } 2132 if (sc->mem != NULL) { 2133 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 2134 sc->mem = NULL; 2135 } 2136 } 2137