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 *, struct ifaltq_subque *); 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 #ifdef notyet 344 ifq_set_ready(&ifp->if_snd); 345 #endif 346 347 ic->ic_ifp = ifp; 348 ic->ic_phytype = IEEE80211_T_DS; 349 ic->ic_opmode = IEEE80211_M_STA; 350 ic->ic_caps = IEEE80211_C_STA 351 | IEEE80211_C_PMGT 352 | IEEE80211_C_MONITOR 353 ; 354 355 /* 356 * Query the card for available channels and setup the 357 * channel table. We assume these are all 11b channels. 358 */ 359 buflen = sizeof(val); 360 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) 361 val = htole16(0x1fff); /* assume 1-11 */ 362 KASSERT(val != 0, ("wi_attach: no available channels listed!")); 363 364 val <<= 1; /* shift for base 1 indices */ 365 for (i = 1; i < 16; i++) { 366 struct ieee80211_channel *c; 367 368 if (!isset((u_int8_t*)&val, i)) 369 continue; 370 c = &ic->ic_channels[ic->ic_nchans++]; 371 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 372 c->ic_flags = IEEE80211_CHAN_B; 373 c->ic_ieee = i; 374 /* XXX txpowers? */ 375 } 376 377 /* 378 * Set flags based on firmware version. 379 */ 380 switch (sc->sc_firmware_type) { 381 case WI_LUCENT: 382 sc->sc_ntxbuf = 1; 383 ic->ic_caps |= IEEE80211_C_IBSS; 384 385 sc->sc_ibss_port = WI_PORTTYPE_BSS; 386 sc->sc_monitor_port = WI_PORTTYPE_ADHOC; 387 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; 388 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; 389 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 390 break; 391 case WI_INTERSIL: 392 sc->sc_ntxbuf = WI_NTXBUF; 393 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR 394 | WI_FLAGS_HAS_ROAMING; 395 /* 396 * Old firmware are slow, so give peace a chance. 397 */ 398 if (sc->sc_sta_firmware_ver < 10000) 399 sc->wi_cmd_count = 5000; 400 if (sc->sc_sta_firmware_ver > 10101) 401 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 402 ic->ic_caps |= IEEE80211_C_IBSS; 403 /* 404 * version 0.8.3 and newer are the only ones that are known 405 * to currently work. Earlier versions can be made to work, 406 * at least according to the Linux driver but we require 407 * monitor mode so this is irrelevant. 408 */ 409 ic->ic_caps |= IEEE80211_C_HOSTAP; 410 if (sc->sc_sta_firmware_ver >= 10603) 411 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; 412 if (sc->sc_sta_firmware_ver >= 10700) { 413 /* 414 * 1.7.0+ have the necessary support for sta mode WPA. 415 */ 416 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; 417 ic->ic_caps |= IEEE80211_C_WPA; 418 } 419 420 sc->sc_ibss_port = WI_PORTTYPE_IBSS; 421 sc->sc_monitor_port = WI_PORTTYPE_APSILENT; 422 sc->sc_min_rssi = WI_PRISM_MIN_RSSI; 423 sc->sc_max_rssi = WI_PRISM_MAX_RSSI; 424 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 425 break; 426 } 427 428 /* 429 * Find out if we support WEP on this card. 430 */ 431 buflen = sizeof(val); 432 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && 433 val != htole16(0)) 434 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; 435 436 /* Find supported rates. */ 437 buflen = sizeof(ratebuf); 438 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 439 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { 440 nrates = le16toh(*(u_int16_t *)ratebuf); 441 if (nrates > IEEE80211_RATE_MAXSIZE) 442 nrates = IEEE80211_RATE_MAXSIZE; 443 rs->rs_nrates = 0; 444 for (i = 0; i < nrates; i++) 445 if (ratebuf[2+i]) 446 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; 447 } else { 448 /* XXX fallback on error? */ 449 } 450 451 buflen = sizeof(val); 452 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 453 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { 454 sc->sc_dbm_offset = le16toh(val); 455 } 456 457 sc->sc_portnum = WI_DEFAULT_PORT; 458 459 ieee80211_ifattach(ic, macaddr); 460 ic->ic_raw_xmit = wi_raw_xmit; 461 ic->ic_scan_start = wi_scan_start; 462 ic->ic_scan_end = wi_scan_end; 463 ic->ic_set_channel = wi_set_channel; 464 465 ic->ic_vap_create = wi_vap_create; 466 ic->ic_vap_delete = wi_vap_delete; 467 ic->ic_update_mcast = wi_update_mcast; 468 ic->ic_update_promisc = wi_update_promisc; 469 470 ieee80211_radiotap_attach(ic, 471 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 472 WI_TX_RADIOTAP_PRESENT, 473 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 474 WI_RX_RADIOTAP_PRESENT); 475 476 if (bootverbose) 477 ieee80211_announce(ic); 478 479 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, 480 wi_intr, sc, &sc->wi_intrhand, NULL); 481 if (error) { 482 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 483 ieee80211_ifdetach(ic); 484 if_free(sc->sc_ifp); 485 wi_free(dev); 486 return error; 487 } 488 489 return (0); 490 } 491 492 int 493 wi_detach(device_t dev) 494 { 495 struct wi_softc *sc = device_get_softc(dev); 496 struct ifnet *ifp = sc->sc_ifp; 497 struct ieee80211com *ic = ifp->if_l2com; 498 499 /* check if device was removed */ 500 sc->wi_gone |= !bus_child_present(dev); 501 502 wi_stop_locked(sc, 0); 503 ieee80211_ifdetach(ic); 504 505 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); 506 if_free(sc->sc_ifp); 507 wi_free(dev); 508 return (0); 509 } 510 511 static struct ieee80211vap * 512 wi_vap_create(struct ieee80211com *ic, 513 const char name[IFNAMSIZ], int unit, int opmode, int flags, 514 const uint8_t bssid[IEEE80211_ADDR_LEN], 515 const uint8_t mac[IEEE80211_ADDR_LEN]) 516 { 517 struct wi_softc *sc = ic->ic_ifp->if_softc; 518 struct wi_vap *wvp; 519 struct ieee80211vap *vap; 520 521 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 522 return NULL; 523 wvp = (struct wi_vap *) kmalloc(sizeof(struct wi_vap), 524 M_80211_VAP, M_NOWAIT | M_ZERO); 525 if (wvp == NULL) 526 return NULL; 527 528 vap = &wvp->wv_vap; 529 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 530 531 vap->iv_max_aid = WI_MAX_AID; 532 533 switch (opmode) { 534 case IEEE80211_M_STA: 535 sc->sc_porttype = WI_PORTTYPE_BSS; 536 wvp->wv_newstate = vap->iv_newstate; 537 vap->iv_newstate = wi_newstate_sta; 538 /* need to filter mgt frames to avoid confusing state machine */ 539 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 540 vap->iv_recv_mgmt = wi_recv_mgmt; 541 break; 542 case IEEE80211_M_IBSS: 543 sc->sc_porttype = sc->sc_ibss_port; 544 wvp->wv_newstate = vap->iv_newstate; 545 vap->iv_newstate = wi_newstate_sta; 546 break; 547 case IEEE80211_M_AHDEMO: 548 sc->sc_porttype = WI_PORTTYPE_ADHOC; 549 break; 550 case IEEE80211_M_HOSTAP: 551 sc->sc_porttype = WI_PORTTYPE_HOSTAP; 552 wvp->wv_newstate = vap->iv_newstate; 553 vap->iv_newstate = wi_newstate_hostap; 554 break; 555 case IEEE80211_M_MONITOR: 556 sc->sc_porttype = sc->sc_monitor_port; 557 break; 558 default: 559 break; 560 } 561 562 /* complete setup */ 563 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); 564 ic->ic_opmode = opmode; 565 return vap; 566 } 567 568 static void 569 wi_vap_delete(struct ieee80211vap *vap) 570 { 571 struct wi_vap *wvp = WI_VAP(vap); 572 573 ieee80211_vap_detach(vap); 574 kfree(wvp, M_80211_VAP); 575 } 576 577 int 578 wi_shutdown(device_t dev) 579 { 580 struct wi_softc *sc = device_get_softc(dev); 581 582 wi_stop(sc, 1); 583 return (0); 584 } 585 586 void 587 wi_intr(void *arg) 588 { 589 struct wi_softc *sc = arg; 590 struct ifnet *ifp = sc->sc_ifp; 591 u_int16_t status; 592 593 if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { 594 CSR_WRITE_2(sc, WI_INT_EN, 0); 595 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 596 return; 597 } 598 599 /* Disable interrupts. */ 600 CSR_WRITE_2(sc, WI_INT_EN, 0); 601 602 status = CSR_READ_2(sc, WI_EVENT_STAT); 603 if (status & WI_EV_RX) 604 wi_rx_intr(sc); 605 if (status & WI_EV_ALLOC) 606 wi_tx_intr(sc); 607 if (status & WI_EV_TX_EXC) 608 wi_tx_ex_intr(sc); 609 if (status & WI_EV_INFO) 610 wi_info_intr(sc); 611 if (!ifq_is_oactive(&ifp->if_snd) && !ifq_is_empty(&ifp->if_snd)) 612 wi_start_locked(ifp); 613 614 /* Re-enable interrupts. */ 615 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 616 617 return; 618 } 619 620 static void 621 wi_enable(struct wi_softc *sc) 622 { 623 /* Enable interrupts */ 624 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 625 626 /* enable port */ 627 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 628 sc->sc_enabled = 1; 629 } 630 631 static int 632 wi_setup_locked(struct wi_softc *sc, int porttype, int mode, 633 uint8_t mac[IEEE80211_ADDR_LEN]) 634 { 635 int i; 636 637 wi_reset(sc); 638 639 wi_write_val(sc, WI_RID_PORTTYPE, porttype); 640 wi_write_val(sc, WI_RID_CREATE_IBSS, mode); 641 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); 642 /* XXX IEEE80211_BPF_NOACK wants 0 */ 643 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); 644 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 645 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ 646 647 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); 648 649 /* Allocate fids for the card */ 650 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 651 for (i = 0; i < sc->sc_ntxbuf; i++) { 652 int error = wi_alloc_fid(sc, sc->sc_buflen, 653 &sc->sc_txd[i].d_fid); 654 if (error) { 655 device_printf(sc->sc_dev, 656 "tx buffer allocation failed (error %u)\n", 657 error); 658 return error; 659 } 660 sc->sc_txd[i].d_len = 0; 661 } 662 sc->sc_txcur = sc->sc_txnext = 0; 663 664 return 0; 665 } 666 667 static void 668 wi_init_locked(struct wi_softc *sc) 669 { 670 struct ifnet *ifp = sc->sc_ifp; 671 int wasenabled; 672 673 wasenabled = sc->sc_enabled; 674 if (wasenabled) 675 wi_stop_locked(sc, 1); 676 677 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { 678 if_printf(ifp, "interface not running\n"); 679 wi_stop_locked(sc, 1); 680 return; 681 } 682 683 ifp->if_flags |= IFF_RUNNING; 684 ifq_clr_oactive(&ifp->if_snd); 685 686 callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); 687 688 wi_enable(sc); /* Enable desired port */ 689 } 690 691 void 692 wi_init(void *arg) 693 { 694 struct wi_softc *sc = arg; 695 struct ifnet *ifp = sc->sc_ifp; 696 struct ieee80211com *ic = ifp->if_l2com; 697 698 wi_init_locked(sc); 699 700 if (ifp->if_flags & IFF_RUNNING) 701 ieee80211_start_all(ic); /* start all vap's */ 702 } 703 704 static void 705 wi_stop_locked(struct wi_softc *sc, int disable) 706 { 707 struct ifnet *ifp = sc->sc_ifp; 708 709 if (sc->sc_enabled && !sc->wi_gone) { 710 CSR_WRITE_2(sc, WI_INT_EN, 0); 711 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 712 if (disable) 713 sc->sc_enabled = 0; 714 } else if (sc->wi_gone && disable) /* gone --> not enabled */ 715 sc->sc_enabled = 0; 716 717 callout_stop(&sc->sc_watchdog); 718 sc->sc_tx_timer = 0; 719 sc->sc_false_syns = 0; 720 721 ifp->if_flags &= ~IFF_RUNNING; 722 ifq_clr_oactive(&ifp->if_snd); 723 } 724 725 void 726 wi_stop(struct wi_softc *sc, int disable) 727 { 728 wi_stop_locked(sc, disable); 729 } 730 731 static void 732 wi_set_channel(struct ieee80211com *ic) 733 { 734 struct ifnet *ifp = ic->ic_ifp; 735 struct wi_softc *sc = ifp->if_softc; 736 737 DPRINTF(("%s: channel %d, %sscanning\n", __func__, 738 ieee80211_chan2ieee(ic, ic->ic_curchan), 739 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); 740 741 wi_write_val(sc, WI_RID_OWN_CHNL, 742 ieee80211_chan2ieee(ic, ic->ic_curchan)); 743 } 744 745 static void 746 wi_scan_start(struct ieee80211com *ic) 747 { 748 struct ifnet *ifp = ic->ic_ifp; 749 struct wi_softc *sc = ifp->if_softc; 750 struct ieee80211_scan_state *ss = ic->ic_scan; 751 752 DPRINTF(("%s\n", __func__)); 753 754 /* 755 * Switch device to monitor mode. 756 */ 757 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); 758 if (sc->sc_firmware_type == WI_INTERSIL) { 759 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 760 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 761 } 762 /* force full dwell time to compensate for firmware overhead */ 763 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); 764 765 } 766 767 static void 768 wi_scan_end(struct ieee80211com *ic) 769 { 770 struct ifnet *ifp = ic->ic_ifp; 771 struct wi_softc *sc = ifp->if_softc; 772 773 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); 774 775 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); 776 if (sc->sc_firmware_type == WI_INTERSIL) { 777 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 778 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 779 } 780 } 781 782 static void 783 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 784 int subtype, int rssi, int nf) 785 { 786 struct ieee80211vap *vap = ni->ni_vap; 787 788 switch (subtype) { 789 case IEEE80211_FC0_SUBTYPE_AUTH: 790 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 791 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 792 /* NB: filter frames that trigger state changes */ 793 return; 794 } 795 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); 796 } 797 798 static int 799 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 800 { 801 struct ieee80211com *ic = vap->iv_ic; 802 struct ifnet *ifp = ic->ic_ifp; 803 struct ieee80211_node *bss; 804 struct wi_softc *sc = ifp->if_softc; 805 806 DPRINTF(("%s: %s -> %s\n", __func__, 807 ieee80211_state_name[vap->iv_state], 808 ieee80211_state_name[nstate])); 809 810 if (nstate == IEEE80211_S_AUTH) { 811 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); 812 813 if (vap->iv_flags & IEEE80211_F_PMGTON) { 814 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 815 wi_write_val(sc, WI_RID_PM_ENABLED, 1); 816 } 817 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 818 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 819 wi_write_val(sc, WI_RID_FRAG_THRESH, 820 vap->iv_fragthreshold); 821 wi_write_txrate(sc, vap); 822 823 bss = vap->iv_bss; 824 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); 825 wi_write_val(sc, WI_RID_OWN_CHNL, 826 ieee80211_chan2ieee(ic, bss->ni_chan)); 827 828 /* Configure WEP. */ 829 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 830 wi_write_wep(sc, vap); 831 else 832 sc->sc_encryption = 0; 833 834 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 835 (vap->iv_flags & IEEE80211_F_WPA)) { 836 wi_write_val(sc, WI_RID_WPA_HANDLING, 1); 837 if (vap->iv_appie_wpa != NULL) 838 wi_write_appie(sc, WI_RID_WPA_DATA, 839 vap->iv_appie_wpa); 840 } 841 842 wi_enable(sc); /* enable port */ 843 844 /* Lucent firmware does not support the JOIN RID. */ 845 if (sc->sc_firmware_type == WI_INTERSIL) { 846 struct wi_joinreq join; 847 848 memset(&join, 0, sizeof(join)); 849 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); 850 join.wi_chan = htole16( 851 ieee80211_chan2ieee(ic, bss->ni_chan)); 852 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 853 } 854 855 /* 856 * NB: don't go through 802.11 layer, it'll send auth frame; 857 * instead we drive the state machine from the link status 858 * notification we get on association. 859 */ 860 vap->iv_state = nstate; 861 return (0); 862 } 863 return WI_VAP(vap)->wv_newstate(vap, nstate, arg); 864 } 865 866 static int 867 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 868 { 869 struct ieee80211com *ic = vap->iv_ic; 870 struct ifnet *ifp = ic->ic_ifp; 871 struct ieee80211_node *bss; 872 struct wi_softc *sc = ifp->if_softc; 873 int error; 874 875 DPRINTF(("%s: %s -> %s\n", __func__, 876 ieee80211_state_name[vap->iv_state], 877 ieee80211_state_name[nstate])); 878 879 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); 880 if (error == 0 && nstate == IEEE80211_S_RUN) { 881 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); 882 883 bss = vap->iv_bss; 884 wi_write_ssid(sc, WI_RID_OWN_SSID, 885 bss->ni_essid, bss->ni_esslen); 886 wi_write_val(sc, WI_RID_OWN_CHNL, 887 ieee80211_chan2ieee(ic, bss->ni_chan)); 888 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); 889 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); 890 wi_write_txrate(sc, vap); 891 892 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); 893 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); 894 895 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 896 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 897 wi_write_val(sc, WI_RID_FRAG_THRESH, 898 vap->iv_fragthreshold); 899 900 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && 901 (vap->iv_flags & IEEE80211_F_HIDESSID)) { 902 /* 903 * bit 0 means hide SSID in beacons, 904 * bit 1 means don't respond to bcast probe req 905 */ 906 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); 907 } 908 909 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 910 (vap->iv_flags & IEEE80211_F_WPA) && 911 vap->iv_appie_wpa != NULL) 912 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); 913 914 wi_write_val(sc, WI_RID_PROMISC, 0); 915 916 /* Configure WEP. */ 917 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 918 wi_write_wep(sc, vap); 919 else 920 sc->sc_encryption = 0; 921 922 wi_enable(sc); /* enable port */ 923 } 924 return error; 925 } 926 927 static void 928 wi_start_locked(struct ifnet *ifp) 929 { 930 struct wi_softc *sc = ifp->if_softc; 931 struct ieee80211_node *ni; 932 struct ieee80211_frame *wh; 933 struct mbuf *m0; 934 struct ieee80211_key *k; 935 struct wi_frame frmhdr; 936 const struct llc *llc; 937 int cur; 938 939 if (sc->wi_gone) 940 return; 941 942 memset(&frmhdr, 0, sizeof(frmhdr)); 943 cur = sc->sc_txnext; 944 for (;;) { 945 m0 = ifq_dequeue(&ifp->if_snd); 946 if (m0 == NULL) 947 break; 948 if (sc->sc_txd[cur].d_len != 0) { 949 ifq_prepend(&ifp->if_snd, m0); 950 ifq_set_oactive(&ifp->if_snd); 951 break; 952 } 953 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; 954 955 /* reconstruct 802.3 header */ 956 wh = mtod(m0, struct ieee80211_frame *); 957 switch (wh->i_fc[1]) { 958 case IEEE80211_FC1_DIR_TODS: 959 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 960 wh->i_addr2); 961 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 962 wh->i_addr3); 963 break; 964 case IEEE80211_FC1_DIR_NODS: 965 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 966 wh->i_addr2); 967 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 968 wh->i_addr1); 969 break; 970 case IEEE80211_FC1_DIR_FROMDS: 971 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 972 wh->i_addr3); 973 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 974 wh->i_addr1); 975 break; 976 } 977 llc = (const struct llc *)( 978 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); 979 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; 980 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 981 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 982 k = ieee80211_crypto_encap(ni, m0); 983 if (k == NULL) { 984 ieee80211_free_node(ni); 985 m_freem(m0); 986 continue; 987 } 988 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 989 } 990 991 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 992 sc->sc_tx_th.wt_rate = ni->ni_txrate; 993 ieee80211_radiotap_tx(ni->ni_vap, m0); 994 } 995 996 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 997 (caddr_t)&frmhdr.wi_whdr); 998 m_adj(m0, sizeof(struct ieee80211_frame)); 999 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1000 ieee80211_free_node(ni); 1001 if (wi_start_tx(ifp, &frmhdr, m0)) 1002 continue; 1003 1004 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1005 IFNET_STAT_INC(ifp, opackets, 1); 1006 } 1007 } 1008 1009 static void 1010 wi_start(struct ifnet *ifp, struct ifaltq_subque *ifsq) 1011 { 1012 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq); 1013 wi_start_locked(ifp); 1014 } 1015 1016 static int 1017 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) 1018 { 1019 struct wi_softc *sc = ifp->if_softc; 1020 int cur = sc->sc_txnext; 1021 int fid, off, error; 1022 1023 fid = sc->sc_txd[cur].d_fid; 1024 off = sizeof(*frmhdr); 1025 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 1026 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; 1027 m_freem(m0); 1028 if (error) { 1029 IFNET_STAT_INC(ifp, oerrors, 1); 1030 return -1; 1031 } 1032 sc->sc_txd[cur].d_len = off; 1033 if (sc->sc_txcur == cur) { 1034 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1035 if_printf(ifp, "xmit failed\n"); 1036 sc->sc_txd[cur].d_len = 0; 1037 return -1; 1038 } 1039 sc->sc_tx_timer = 5; 1040 } 1041 return 0; 1042 } 1043 1044 static int 1045 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, 1046 const struct ieee80211_bpf_params *params) 1047 { 1048 struct ieee80211com *ic = ni->ni_ic; 1049 struct ifnet *ifp = ic->ic_ifp; 1050 struct ieee80211vap *vap = ni->ni_vap; 1051 struct wi_softc *sc = ifp->if_softc; 1052 struct ieee80211_key *k; 1053 struct ieee80211_frame *wh; 1054 struct wi_frame frmhdr; 1055 int cur; 1056 int rc = 0; 1057 1058 if (sc->wi_gone) { 1059 rc = ENETDOWN; 1060 goto out; 1061 } 1062 memset(&frmhdr, 0, sizeof(frmhdr)); 1063 cur = sc->sc_txnext; 1064 if (sc->sc_txd[cur].d_len != 0) { 1065 ifq_set_oactive(&ifp->if_snd); 1066 rc = ENOBUFS; 1067 goto out; 1068 } 1069 m0->m_pkthdr.rcvif = NULL; 1070 1071 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1072 (caddr_t)&frmhdr.wi_ehdr); 1073 frmhdr.wi_ehdr.ether_type = 0; 1074 wh = mtod(m0, struct ieee80211_frame *); 1075 1076 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1077 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) 1078 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1079 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) && 1080 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { 1081 k = ieee80211_crypto_encap(ni, m0); 1082 if (k == NULL) { 1083 rc = ENOMEM; 1084 goto out; 1085 } 1086 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1087 } 1088 if (ieee80211_radiotap_active_vap(vap)) { 1089 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1090 ieee80211_radiotap_tx(vap, m0); 1091 } 1092 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1093 (caddr_t)&frmhdr.wi_whdr); 1094 m_adj(m0, sizeof(struct ieee80211_frame)); 1095 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1096 if (wi_start_tx(ifp, &frmhdr, m0) < 0) { 1097 m0 = NULL; 1098 rc = EIO; 1099 goto out; 1100 } 1101 m0 = NULL; 1102 1103 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1104 out: 1105 1106 if (m0 != NULL) 1107 m_freem(m0); 1108 ieee80211_free_node(ni); 1109 return rc; 1110 } 1111 1112 static int 1113 wi_reset(struct wi_softc *sc) 1114 { 1115 #define WI_INIT_TRIES 3 1116 int i, error = 0; 1117 1118 for (i = 0; i < WI_INIT_TRIES; i++) { 1119 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); 1120 if (error == 0) 1121 break; 1122 DELAY(WI_DELAY * 1000); 1123 } 1124 sc->sc_reset = 1; 1125 if (i == WI_INIT_TRIES) { 1126 if_printf(sc->sc_ifp, "reset failed\n"); 1127 return error; 1128 } 1129 1130 CSR_WRITE_2(sc, WI_INT_EN, 0); 1131 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 1132 1133 /* Calibrate timer. */ 1134 wi_write_val(sc, WI_RID_TICK_TIME, 8); 1135 1136 return 0; 1137 #undef WI_INIT_TRIES 1138 } 1139 1140 static void 1141 wi_watchdog_callout(void *arg) 1142 { 1143 struct wi_softc *sc = arg; 1144 struct ifnet *ifp = sc->sc_ifp; 1145 1146 if (!sc->sc_enabled) 1147 return; 1148 1149 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 1150 if_printf(ifp, "device timeout\n"); 1151 IFNET_STAT_INC(ifp, oerrors, 1); 1152 wi_init_locked(ifp->if_softc); 1153 return; 1154 } 1155 callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); 1156 } 1157 1158 static int 1159 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) 1160 { 1161 struct wi_softc *sc = ifp->if_softc; 1162 struct ieee80211com *ic = ifp->if_l2com; 1163 struct ifreq *ifr = (struct ifreq *) data; 1164 int error = 0, startall = 0; 1165 1166 switch (cmd) { 1167 case SIOCSIFFLAGS: 1168 /* 1169 * Can't do promisc and hostap at the same time. If all that's 1170 * changing is the promisc flag, try to short-circuit a call to 1171 * wi_init() by just setting PROMISC in the hardware. 1172 */ 1173 if (ifp->if_flags & IFF_UP) { 1174 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1175 ifp->if_flags & IFF_RUNNING) { 1176 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { 1177 wi_write_val(sc, WI_RID_PROMISC, 1178 (ifp->if_flags & IFF_PROMISC) != 0); 1179 } else { 1180 wi_init_locked(sc); 1181 startall = 1; 1182 } 1183 } else { 1184 wi_init_locked(sc); 1185 startall = 1; 1186 } 1187 } else { 1188 if (ifp->if_flags & IFF_RUNNING) 1189 wi_stop_locked(sc, 1); 1190 sc->wi_gone = 0; 1191 } 1192 sc->sc_if_flags = ifp->if_flags; 1193 if (startall) 1194 ieee80211_start_all(ic); 1195 break; 1196 case SIOCGIFMEDIA: 1197 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1198 break; 1199 case SIOCGIFADDR: 1200 error = ether_ioctl(ifp, cmd, data); 1201 break; 1202 default: 1203 error = EINVAL; 1204 break; 1205 } 1206 return error; 1207 } 1208 1209 static void 1210 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1211 { 1212 struct ieee80211vap *vap = ifp->if_softc; 1213 struct ieee80211com *ic = vap->iv_ic; 1214 struct wi_softc *sc = ic->ic_ifp->if_softc; 1215 u_int16_t val; 1216 int rate, len; 1217 1218 len = sizeof(val); 1219 if (sc->sc_enabled && 1220 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && 1221 len == sizeof(val)) { 1222 /* convert to 802.11 rate */ 1223 val = le16toh(val); 1224 rate = val * 2; 1225 if (sc->sc_firmware_type == WI_LUCENT) { 1226 if (rate == 10) 1227 rate = 11; /* 5.5Mbps */ 1228 } else { 1229 if (rate == 4*2) 1230 rate = 11; /* 5.5Mbps */ 1231 else if (rate == 8*2) 1232 rate = 22; /* 11Mbps */ 1233 } 1234 vap->iv_bss->ni_txrate = rate; 1235 } 1236 ieee80211_media_status(ifp, imr); 1237 } 1238 1239 static void 1240 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1241 { 1242 struct ifnet *ifp = sc->sc_ifp; 1243 struct ieee80211com *ic = ifp->if_l2com; 1244 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1245 struct ieee80211_node *ni = vap->iv_bss; 1246 char ethstr[ETHER_ADDRSTRLEN + 1]; 1247 1248 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1249 return; 1250 1251 DPRINTF(("wi_sync_bssid: bssid %s -> ", kether_ntoa(ni->ni_bssid, ethstr))); 1252 DPRINTF(("%s ?\n", kether_ntoa(new_bssid, ethstr))); 1253 1254 /* In promiscuous mode, the BSSID field is not a reliable 1255 * indicator of the firmware's BSSID. Damp spurious 1256 * change-of-BSSID indications. 1257 */ 1258 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1259 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1260 WI_MAX_FALSE_SYNS)) 1261 return; 1262 1263 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1264 #if 0 1265 /* 1266 * XXX hack; we should create a new node with the new bssid 1267 * and replace the existing ic_bss with it but since we don't 1268 * process management frames to collect state we cheat by 1269 * reusing the existing node as we know wi_newstate will be 1270 * called and it will overwrite the node state. 1271 */ 1272 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1273 #endif 1274 } 1275 1276 static __noinline void 1277 wi_rx_intr(struct wi_softc *sc) 1278 { 1279 struct ifnet *ifp = sc->sc_ifp; 1280 struct ieee80211com *ic = ifp->if_l2com; 1281 struct wi_frame frmhdr; 1282 struct mbuf *m; 1283 struct ieee80211_frame *wh; 1284 struct ieee80211_node *ni; 1285 int fid, len, off; 1286 u_int8_t dir; 1287 u_int16_t status; 1288 int8_t rssi, nf; 1289 1290 fid = CSR_READ_2(sc, WI_RX_FID); 1291 1292 /* First read in the frame header */ 1293 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1294 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1295 IFNET_STAT_INC(ifp, ierrors, 1); 1296 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); 1297 return; 1298 } 1299 1300 /* 1301 * Drop undecryptable or packets with receive errors here 1302 */ 1303 status = le16toh(frmhdr.wi_status); 1304 if (status & WI_STAT_ERRSTAT) { 1305 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1306 IFNET_STAT_INC(ifp, ierrors, 1); 1307 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1308 return; 1309 } 1310 1311 len = le16toh(frmhdr.wi_dat_len); 1312 off = ALIGN(sizeof(struct ieee80211_frame)); 1313 1314 /* 1315 * Sometimes the PRISM2.x returns bogusly large frames. Except 1316 * in monitor mode, just throw them away. 1317 */ 1318 if (off + len > MCLBYTES) { 1319 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1320 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1321 IFNET_STAT_INC(ifp, ierrors, 1); 1322 DPRINTF(("wi_rx_intr: oversized packet\n")); 1323 return; 1324 } else 1325 len = 0; 1326 } 1327 1328 if (off + len > MHLEN) 1329 m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); 1330 else 1331 m = m_gethdr(MB_DONTWAIT, MT_DATA); 1332 if (m == NULL) { 1333 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1334 IFNET_STAT_INC(ifp, ierrors, 1); 1335 DPRINTF(("wi_rx_intr: MGET failed\n")); 1336 return; 1337 } 1338 m->m_data += off - sizeof(struct ieee80211_frame); 1339 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1340 wi_read_bap(sc, fid, sizeof(frmhdr), 1341 m->m_data + sizeof(struct ieee80211_frame), len); 1342 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1343 m->m_pkthdr.rcvif = ifp; 1344 1345 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1346 1347 rssi = frmhdr.wi_rx_signal; 1348 nf = frmhdr.wi_rx_silence; 1349 if (ieee80211_radiotap_active(ic)) { 1350 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; 1351 uint32_t rstamp; 1352 1353 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1354 le16toh(frmhdr.wi_rx_tstamp1); 1355 tap->wr_tsf = htole64((uint64_t)rstamp); 1356 /* XXX replace divide by table */ 1357 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1358 tap->wr_flags = 0; 1359 if (frmhdr.wi_status & WI_STAT_PCF) 1360 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1361 if (m->m_flags & M_WEP) 1362 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; 1363 tap->wr_antsignal = rssi; 1364 tap->wr_antnoise = nf; 1365 } 1366 1367 /* synchronize driver's BSSID with firmware's BSSID */ 1368 wh = mtod(m, struct ieee80211_frame *); 1369 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1370 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1371 wi_sync_bssid(sc, wh->i_addr3); 1372 1373 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1374 if (ni != NULL) { 1375 (void) ieee80211_input(ni, m, rssi, nf); 1376 ieee80211_free_node(ni); 1377 } else 1378 (void) ieee80211_input_all(ic, m, rssi, nf); 1379 1380 } 1381 1382 static __noinline void 1383 wi_tx_ex_intr(struct wi_softc *sc) 1384 { 1385 struct ifnet *ifp = sc->sc_ifp; 1386 struct wi_frame frmhdr; 1387 int fid; 1388 char ethstr[ETHER_ADDRSTRLEN + 1]; 1389 1390 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1391 /* Read in the frame header */ 1392 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { 1393 u_int16_t status = le16toh(frmhdr.wi_status); 1394 /* 1395 * Spontaneous station disconnects appear as xmit 1396 * errors. Don't announce them and/or count them 1397 * as an output error. 1398 */ 1399 if ((status & WI_TXSTAT_DISCONNECT) == 0) { 1400 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1401 if_printf(ifp, "tx failed"); 1402 if (status & WI_TXSTAT_RET_ERR) 1403 kprintf(", retry limit exceeded"); 1404 if (status & WI_TXSTAT_AGED_ERR) 1405 kprintf(", max transmit lifetime exceeded"); 1406 if (status & WI_TXSTAT_DISCONNECT) 1407 kprintf(", port disconnected"); 1408 if (status & WI_TXSTAT_FORM_ERR) 1409 kprintf(", invalid format (data len %u src %s)", 1410 le16toh(frmhdr.wi_dat_len), 1411 kether_ntoa(frmhdr.wi_ehdr.ether_shost, ethstr)); 1412 if (status & ~0xf) 1413 kprintf(", status=0x%x", status); 1414 kprintf("\n"); 1415 } 1416 IFNET_STAT_INC(ifp, oerrors, 1); 1417 } else { 1418 DPRINTF(("port disconnected\n")); 1419 IFNET_STAT_INC(ifp, collisions, 1); /* XXX */ 1420 } 1421 } else 1422 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); 1423 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); 1424 } 1425 1426 static __noinline void 1427 wi_tx_intr(struct wi_softc *sc) 1428 { 1429 struct ifnet *ifp = sc->sc_ifp; 1430 int fid, cur; 1431 1432 if (sc->wi_gone) 1433 return; 1434 1435 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1436 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1437 1438 cur = sc->sc_txcur; 1439 if (sc->sc_txd[cur].d_fid != fid) { 1440 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", 1441 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); 1442 return; 1443 } 1444 sc->sc_tx_timer = 0; 1445 sc->sc_txd[cur].d_len = 0; 1446 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; 1447 if (sc->sc_txd[cur].d_len == 0) 1448 ifq_clr_oactive(&ifp->if_snd); 1449 else { 1450 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 1451 0, 0)) { 1452 if_printf(ifp, "xmit failed\n"); 1453 sc->sc_txd[cur].d_len = 0; 1454 } else { 1455 sc->sc_tx_timer = 5; 1456 } 1457 } 1458 } 1459 1460 static __noinline void 1461 wi_info_intr(struct wi_softc *sc) 1462 { 1463 struct ifnet *ifp = sc->sc_ifp; 1464 struct ieee80211com *ic = ifp->if_l2com; 1465 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1466 int i, fid, len, off; 1467 u_int16_t ltbuf[2]; 1468 u_int16_t stat; 1469 u_int32_t *ptr; 1470 1471 fid = CSR_READ_2(sc, WI_INFO_FID); 1472 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1473 1474 switch (le16toh(ltbuf[1])) { 1475 case WI_INFO_LINK_STAT: 1476 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1477 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1478 switch (le16toh(stat)) { 1479 case WI_INFO_LINK_STAT_CONNECTED: 1480 if (vap->iv_state == IEEE80211_S_RUN && 1481 vap->iv_opmode != IEEE80211_M_IBSS) 1482 break; 1483 /* fall thru... */ 1484 case WI_INFO_LINK_STAT_AP_CHG: 1485 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ 1486 ieee80211_new_state(vap, IEEE80211_S_RUN, 0); 1487 break; 1488 case WI_INFO_LINK_STAT_AP_INR: 1489 break; 1490 case WI_INFO_LINK_STAT_DISCONNECTED: 1491 /* we dropped off the net; e.g. due to deauth/disassoc */ 1492 vap->iv_bss->ni_associd = 0; 1493 vap->iv_stats.is_rx_deauth++; 1494 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); 1495 break; 1496 case WI_INFO_LINK_STAT_AP_OOR: 1497 /* XXX does this need to be per-vap? */ 1498 ieee80211_beacon_miss(ic); 1499 break; 1500 case WI_INFO_LINK_STAT_ASSOC_FAILED: 1501 if (vap->iv_opmode == IEEE80211_M_STA) 1502 ieee80211_new_state(vap, IEEE80211_S_SCAN, 1503 IEEE80211_SCAN_FAIL_TIMEOUT); 1504 break; 1505 } 1506 break; 1507 case WI_INFO_COUNTERS: 1508 /* some card versions have a larger stats structure */ 1509 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1510 ptr = (u_int32_t *)&sc->sc_stats; 1511 off = sizeof(ltbuf); 1512 for (i = 0; i < len; i++, off += 2, ptr++) { 1513 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1514 #ifdef WI_HERMES_STATS_WAR 1515 if (stat & 0xf000) 1516 stat = ~stat; 1517 #endif 1518 *ptr += stat; 1519 } 1520 IFNET_STAT_SET(ifp, collisions, 1521 sc->sc_stats.wi_tx_single_retries + 1522 sc->sc_stats.wi_tx_multi_retries + 1523 sc->sc_stats.wi_tx_retry_limit); 1524 break; 1525 default: 1526 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1527 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1528 break; 1529 } 1530 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); 1531 } 1532 1533 static int 1534 wi_write_multi(struct wi_softc *sc) 1535 { 1536 struct ifnet *ifp = sc->sc_ifp; 1537 int n; 1538 struct ifmultiaddr *ifma; 1539 struct wi_mcast mlist; 1540 1541 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1542 allmulti: 1543 memset(&mlist, 0, sizeof(mlist)); 1544 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1545 sizeof(mlist)); 1546 } 1547 1548 n = 0; 1549 #ifdef __FreeBSD__ 1550 if_maddr_rlock(ifp); 1551 #endif 1552 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1553 if (ifma->ifma_addr->sa_family != AF_LINK) 1554 continue; 1555 if (n >= 16) 1556 goto allmulti; 1557 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], 1558 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); 1559 n++; 1560 } 1561 #ifdef __FreeBSD__ 1562 if_maddr_runlock(ifp); 1563 #endif 1564 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1565 IEEE80211_ADDR_LEN * n); 1566 } 1567 1568 static void 1569 wi_update_mcast(struct ifnet *ifp) 1570 { 1571 wi_write_multi(ifp->if_softc); 1572 } 1573 1574 static void 1575 wi_update_promisc(struct ifnet *ifp) 1576 { 1577 struct wi_softc *sc = ifp->if_softc; 1578 struct ieee80211com *ic = ifp->if_l2com; 1579 1580 /* XXX handle WEP special case handling? */ 1581 wi_write_val(sc, WI_RID_PROMISC, 1582 (ic->ic_opmode == IEEE80211_M_MONITOR || 1583 (ifp->if_flags & IFF_PROMISC))); 1584 } 1585 1586 static void 1587 wi_read_nicid(struct wi_softc *sc) 1588 { 1589 struct wi_card_ident *id; 1590 char *p; 1591 int len; 1592 u_int16_t ver[4]; 1593 1594 /* getting chip identity */ 1595 memset(ver, 0, sizeof(ver)); 1596 len = sizeof(ver); 1597 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1598 1599 sc->sc_firmware_type = WI_NOTYPE; 1600 sc->sc_nic_id = le16toh(ver[0]); 1601 for (id = wi_card_ident; id->card_name != NULL; id++) { 1602 if (sc->sc_nic_id == id->card_id) { 1603 sc->sc_nic_name = id->card_name; 1604 sc->sc_firmware_type = id->firm_type; 1605 break; 1606 } 1607 } 1608 if (sc->sc_firmware_type == WI_NOTYPE) { 1609 if (sc->sc_nic_id & 0x8000) { 1610 sc->sc_firmware_type = WI_INTERSIL; 1611 sc->sc_nic_name = "Unknown Prism chip"; 1612 } else { 1613 sc->sc_firmware_type = WI_LUCENT; 1614 sc->sc_nic_name = "Unknown Lucent chip"; 1615 } 1616 } 1617 if (bootverbose) 1618 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); 1619 1620 /* get primary firmware version (Only Prism chips) */ 1621 if (sc->sc_firmware_type != WI_LUCENT) { 1622 memset(ver, 0, sizeof(ver)); 1623 len = sizeof(ver); 1624 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 1625 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 1626 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1627 } 1628 1629 /* get station firmware version */ 1630 memset(ver, 0, sizeof(ver)); 1631 len = sizeof(ver); 1632 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 1633 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 1634 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1635 if (sc->sc_firmware_type == WI_INTERSIL && 1636 (sc->sc_sta_firmware_ver == 10102 || 1637 sc->sc_sta_firmware_ver == 20102)) { 1638 char ident[12]; 1639 memset(ident, 0, sizeof(ident)); 1640 len = sizeof(ident); 1641 /* value should be the format like "V2.00-11" */ 1642 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 1643 *(p = (char *)ident) >= 'A' && 1644 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 1645 sc->sc_firmware_type = WI_SYMBOL; 1646 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + 1647 (p[3] - '0') * 1000 + (p[4] - '0') * 100 + 1648 (p[6] - '0') * 10 + (p[7] - '0'); 1649 } 1650 } 1651 if (bootverbose) { 1652 device_printf(sc->sc_dev, "%s Firmware: ", 1653 wi_firmware_names[sc->sc_firmware_type]); 1654 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 1655 kprintf("Primary (%u.%u.%u), ", 1656 sc->sc_pri_firmware_ver / 10000, 1657 (sc->sc_pri_firmware_ver % 10000) / 100, 1658 sc->sc_pri_firmware_ver % 100); 1659 kprintf("Station (%u.%u.%u)\n", 1660 sc->sc_sta_firmware_ver / 10000, 1661 (sc->sc_sta_firmware_ver % 10000) / 100, 1662 sc->sc_sta_firmware_ver % 100); 1663 } 1664 } 1665 1666 static int 1667 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 1668 { 1669 struct wi_ssid ssid; 1670 1671 if (buflen > IEEE80211_NWID_LEN) 1672 return ENOBUFS; 1673 memset(&ssid, 0, sizeof(ssid)); 1674 ssid.wi_len = htole16(buflen); 1675 memcpy(ssid.wi_ssid, buf, buflen); 1676 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 1677 } 1678 1679 static int 1680 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) 1681 { 1682 static const uint16_t lucent_rates[12] = { 1683 [ 0] = 3, /* auto */ 1684 [ 1] = 1, /* 1Mb/s */ 1685 [ 2] = 2, /* 2Mb/s */ 1686 [ 5] = 4, /* 5.5Mb/s */ 1687 [11] = 5 /* 11Mb/s */ 1688 }; 1689 static const uint16_t intersil_rates[12] = { 1690 [ 0] = 0xf, /* auto */ 1691 [ 1] = 0, /* 1Mb/s */ 1692 [ 2] = 1, /* 2Mb/s */ 1693 [ 5] = 2, /* 5.5Mb/s */ 1694 [11] = 3, /* 11Mb/s */ 1695 }; 1696 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? 1697 lucent_rates : intersil_rates; 1698 struct ieee80211com *ic = vap->iv_ic; 1699 const struct ieee80211_txparam *tp; 1700 1701 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 1702 return wi_write_val(sc, WI_RID_TX_RATE, 1703 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? 1704 rates[0] : rates[tp->ucastrate / 2])); 1705 } 1706 1707 static int 1708 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) 1709 { 1710 int error = 0; 1711 int i, keylen; 1712 u_int16_t val; 1713 struct wi_key wkey[IEEE80211_WEP_NKID]; 1714 1715 switch (sc->sc_firmware_type) { 1716 case WI_LUCENT: 1717 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 1718 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 1719 if (error) 1720 break; 1721 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) 1722 break; 1723 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); 1724 if (error) 1725 break; 1726 memset(wkey, 0, sizeof(wkey)); 1727 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1728 keylen = vap->iv_nw_keys[i].wk_keylen; 1729 wkey[i].wi_keylen = htole16(keylen); 1730 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, 1731 keylen); 1732 } 1733 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 1734 wkey, sizeof(wkey)); 1735 sc->sc_encryption = 0; 1736 break; 1737 1738 case WI_INTERSIL: 1739 val = HOST_ENCRYPT | HOST_DECRYPT; 1740 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 1741 /* 1742 * ONLY HWB3163 EVAL-CARD Firmware version 1743 * less than 0.8 variant2 1744 * 1745 * If promiscuous mode disable, Prism2 chip 1746 * does not work with WEP . 1747 * It is under investigation for details. 1748 * (ichiro@netbsd.org) 1749 */ 1750 if (sc->sc_sta_firmware_ver < 802 ) { 1751 /* firm ver < 0.8 variant 2 */ 1752 wi_write_val(sc, WI_RID_PROMISC, 1); 1753 } 1754 wi_write_val(sc, WI_RID_CNFAUTHMODE, 1755 vap->iv_bss->ni_authmode); 1756 val |= PRIVACY_INVOKED; 1757 } else { 1758 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); 1759 } 1760 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 1761 if (error) 1762 break; 1763 sc->sc_encryption = val; 1764 if ((val & PRIVACY_INVOKED) == 0) 1765 break; 1766 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); 1767 break; 1768 } 1769 return error; 1770 } 1771 1772 static int 1773 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 1774 { 1775 int i, s = 0; 1776 1777 if (sc->wi_gone) 1778 return (ENODEV); 1779 1780 /* wait for the busy bit to clear */ 1781 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ 1782 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 1783 break; 1784 DELAY(1*1000); /* 1ms */ 1785 } 1786 if (i == 0) { 1787 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", 1788 __func__, cmd); 1789 sc->wi_gone = 1; 1790 return(ETIMEDOUT); 1791 } 1792 1793 CSR_WRITE_2(sc, WI_PARAM0, val0); 1794 CSR_WRITE_2(sc, WI_PARAM1, val1); 1795 CSR_WRITE_2(sc, WI_PARAM2, val2); 1796 CSR_WRITE_2(sc, WI_COMMAND, cmd); 1797 1798 if (cmd == WI_CMD_INI) { 1799 /* XXX: should sleep here. */ 1800 DELAY(100*1000); /* 100ms delay for init */ 1801 } 1802 for (i = 0; i < WI_TIMEOUT; i++) { 1803 /* 1804 * Wait for 'command complete' bit to be 1805 * set in the event status register. 1806 */ 1807 s = CSR_READ_2(sc, WI_EVENT_STAT); 1808 if (s & WI_EV_CMD) { 1809 /* Ack the event and read result code. */ 1810 s = CSR_READ_2(sc, WI_STATUS); 1811 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1812 if (s & WI_STAT_CMD_RESULT) { 1813 return(EIO); 1814 } 1815 break; 1816 } 1817 DELAY(WI_DELAY); 1818 } 1819 1820 if (i == WI_TIMEOUT) { 1821 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " 1822 "event status 0x%04x\n", __func__, cmd, s); 1823 if (s == 0xffff) 1824 sc->wi_gone = 1; 1825 return(ETIMEDOUT); 1826 } 1827 return (0); 1828 } 1829 1830 static int 1831 wi_seek_bap(struct wi_softc *sc, int id, int off) 1832 { 1833 int i, status; 1834 1835 CSR_WRITE_2(sc, WI_SEL0, id); 1836 CSR_WRITE_2(sc, WI_OFF0, off); 1837 1838 for (i = 0; ; i++) { 1839 status = CSR_READ_2(sc, WI_OFF0); 1840 if ((status & WI_OFF_BUSY) == 0) 1841 break; 1842 if (i == WI_TIMEOUT) { 1843 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", 1844 __func__, id, off); 1845 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1846 if (status == 0xffff) 1847 sc->wi_gone = 1; 1848 return ETIMEDOUT; 1849 } 1850 DELAY(1); 1851 } 1852 if (status & WI_OFF_ERR) { 1853 device_printf(sc->sc_dev, "%s: error, id %x off %x\n", 1854 __func__, id, off); 1855 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1856 return EIO; 1857 } 1858 sc->sc_bap_id = id; 1859 sc->sc_bap_off = off; 1860 return 0; 1861 } 1862 1863 static int 1864 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1865 { 1866 u_int16_t *ptr; 1867 int i, error, cnt; 1868 1869 if (buflen == 0) 1870 return 0; 1871 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1872 if ((error = wi_seek_bap(sc, id, off)) != 0) 1873 return error; 1874 } 1875 cnt = (buflen + 1) / 2; 1876 ptr = (u_int16_t *)buf; 1877 for (i = 0; i < cnt; i++) 1878 *ptr++ = CSR_READ_2(sc, WI_DATA0); 1879 sc->sc_bap_off += cnt * 2; 1880 return 0; 1881 } 1882 1883 static int 1884 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1885 { 1886 u_int16_t *ptr; 1887 int i, error, cnt; 1888 1889 if (buflen == 0) 1890 return 0; 1891 1892 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1893 if ((error = wi_seek_bap(sc, id, off)) != 0) 1894 return error; 1895 } 1896 cnt = (buflen + 1) / 2; 1897 ptr = (u_int16_t *)buf; 1898 for (i = 0; i < cnt; i++) 1899 CSR_WRITE_2(sc, WI_DATA0, ptr[i]); 1900 sc->sc_bap_off += cnt * 2; 1901 1902 return 0; 1903 } 1904 1905 static int 1906 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 1907 { 1908 int error, len; 1909 struct mbuf *m; 1910 1911 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 1912 if (m->m_len == 0) 1913 continue; 1914 1915 len = min(m->m_len, totlen); 1916 1917 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 1918 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 1919 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 1920 totlen); 1921 } 1922 1923 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 1924 return error; 1925 1926 off += m->m_len; 1927 totlen -= len; 1928 } 1929 return 0; 1930 } 1931 1932 static int 1933 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 1934 { 1935 int i; 1936 1937 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 1938 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", 1939 __func__, len); 1940 return ENOMEM; 1941 } 1942 1943 for (i = 0; i < WI_TIMEOUT; i++) { 1944 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 1945 break; 1946 DELAY(1); 1947 } 1948 if (i == WI_TIMEOUT) { 1949 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); 1950 return ETIMEDOUT; 1951 } 1952 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 1953 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1954 return 0; 1955 } 1956 1957 static int 1958 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 1959 { 1960 int error, len; 1961 u_int16_t ltbuf[2]; 1962 1963 /* Tell the NIC to enter record read mode. */ 1964 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 1965 if (error) 1966 return error; 1967 1968 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 1969 if (error) 1970 return error; 1971 1972 if (le16toh(ltbuf[1]) != rid) { 1973 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 1974 rid, le16toh(ltbuf[1])); 1975 return EIO; 1976 } 1977 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 1978 if (*buflenp < len) { 1979 device_printf(sc->sc_dev, "record buffer is too small, " 1980 "rid=%x, size=%d, len=%d\n", 1981 rid, *buflenp, len); 1982 return ENOSPC; 1983 } 1984 *buflenp = len; 1985 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 1986 } 1987 1988 static int 1989 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 1990 { 1991 int error; 1992 u_int16_t ltbuf[2]; 1993 1994 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 1995 ltbuf[1] = htole16(rid); 1996 1997 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 1998 if (error) { 1999 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", 2000 __func__, rid); 2001 return error; 2002 } 2003 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2004 if (error) { 2005 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", 2006 __func__, rid); 2007 return error; 2008 } 2009 2010 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2011 } 2012 2013 static int 2014 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) 2015 { 2016 /* NB: 42 bytes is probably ok to have on the stack */ 2017 char buf[sizeof(uint16_t) + 40]; 2018 2019 if (ie->ie_len > 40) 2020 return EINVAL; 2021 /* NB: firmware requires 16-bit ie length before ie data */ 2022 *(uint16_t *) buf = htole16(ie->ie_len); 2023 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); 2024 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); 2025 } 2026 2027 int 2028 wi_alloc(device_t dev, int rid) 2029 { 2030 struct wi_softc *sc = device_get_softc(dev); 2031 2032 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 2033 sc->iobase_rid = rid; 2034 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, 2035 &sc->iobase_rid, 0, ~0, (1 << 6), 2036 rman_make_alignment_flags(1 << 6) | RF_ACTIVE); 2037 if (sc->iobase == NULL) { 2038 device_printf(dev, "No I/O space?!\n"); 2039 return ENXIO; 2040 } 2041 2042 sc->wi_io_addr = rman_get_start(sc->iobase); 2043 sc->wi_btag = rman_get_bustag(sc->iobase); 2044 sc->wi_bhandle = rman_get_bushandle(sc->iobase); 2045 } else { 2046 sc->mem_rid = rid; 2047 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 2048 &sc->mem_rid, RF_ACTIVE); 2049 if (sc->mem == NULL) { 2050 device_printf(dev, "No Mem space on prism2.5?\n"); 2051 return ENXIO; 2052 } 2053 2054 sc->wi_btag = rman_get_bustag(sc->mem); 2055 sc->wi_bhandle = rman_get_bushandle(sc->mem); 2056 } 2057 2058 sc->irq_rid = 0; 2059 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 2060 RF_ACTIVE | 2061 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); 2062 if (sc->irq == NULL) { 2063 wi_free(dev); 2064 device_printf(dev, "No irq?!\n"); 2065 return ENXIO; 2066 } 2067 2068 sc->sc_dev = dev; 2069 sc->sc_unit = device_get_unit(dev); 2070 return 0; 2071 } 2072 2073 void 2074 wi_free(device_t dev) 2075 { 2076 struct wi_softc *sc = device_get_softc(dev); 2077 2078 if (sc->iobase != NULL) { 2079 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); 2080 sc->iobase = NULL; 2081 } 2082 if (sc->irq != NULL) { 2083 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 2084 sc->irq = NULL; 2085 } 2086 if (sc->mem != NULL) { 2087 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 2088 sc->mem = NULL; 2089 } 2090 } 2091