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