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