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, 112 enum ieee80211_opmode 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 *, struct ifaltq_subque *); 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 = device_get_sysctl_ctx(sc->sc_dev); 286 soid = device_get_sysctl_tree(sc->sc_dev); 287 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 288 "firmware_type", CTLFLAG_RD, 289 wi_firmware_names[sc->sc_firmware_type], 0, 290 "Firmware type string"); 291 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version", 292 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0, 293 "Station Firmware version"); 294 if (sc->sc_firmware_type == WI_INTERSIL) 295 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 296 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0, 297 "Primary Firmware version"); 298 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id", 299 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id"); 300 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name", 301 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name"); 302 303 callout_init(&sc->sc_watchdog); 304 305 /* 306 * Read the station address. 307 * And do it twice. I've seen PRISM-based cards that return 308 * an error when trying to read it the first time, which causes 309 * the probe to fail. 310 */ 311 buflen = IEEE80211_ADDR_LEN; 312 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 313 if (error != 0) { 314 buflen = IEEE80211_ADDR_LEN; 315 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 316 } 317 if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) { 318 if (error != 0) 319 device_printf(dev, "mac read failed %d\n", error); 320 else { 321 device_printf(dev, "mac read failed (all zeros)\n"); 322 error = ENXIO; 323 } 324 wi_free(dev); 325 return (error); 326 } 327 328 ifp->if_softc = sc; 329 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 330 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 331 ifp->if_ioctl = wi_ioctl; 332 ifp->if_start = wi_start; 333 ifp->if_init = wi_init; 334 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN); 335 #ifdef notyet 336 ifq_set_ready(&ifp->if_snd); 337 #endif 338 339 ic->ic_ifp = ifp; 340 ic->ic_phytype = IEEE80211_T_DS; 341 ic->ic_opmode = IEEE80211_M_STA; 342 ic->ic_caps = IEEE80211_C_STA 343 | IEEE80211_C_PMGT 344 | IEEE80211_C_MONITOR 345 ; 346 347 /* 348 * Query the card for available channels and setup the 349 * channel table. We assume these are all 11b channels. 350 */ 351 buflen = sizeof(val); 352 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) 353 val = htole16(0x1fff); /* assume 1-11 */ 354 KASSERT(val != 0, ("wi_attach: no available channels listed!")); 355 356 val <<= 1; /* shift for base 1 indices */ 357 for (i = 1; i < 16; i++) { 358 struct ieee80211_channel *c; 359 360 if (!isset((u_int8_t*)&val, i)) 361 continue; 362 c = &ic->ic_channels[ic->ic_nchans++]; 363 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 364 c->ic_flags = IEEE80211_CHAN_B; 365 c->ic_ieee = i; 366 /* XXX txpowers? */ 367 } 368 369 /* 370 * Set flags based on firmware version. 371 */ 372 switch (sc->sc_firmware_type) { 373 case WI_LUCENT: 374 sc->sc_ntxbuf = 1; 375 ic->ic_caps |= IEEE80211_C_IBSS; 376 377 sc->sc_ibss_port = WI_PORTTYPE_BSS; 378 sc->sc_monitor_port = WI_PORTTYPE_ADHOC; 379 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; 380 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; 381 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 382 break; 383 case WI_INTERSIL: 384 sc->sc_ntxbuf = WI_NTXBUF; 385 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR 386 | WI_FLAGS_HAS_ROAMING; 387 /* 388 * Old firmware are slow, so give peace a chance. 389 */ 390 if (sc->sc_sta_firmware_ver < 10000) 391 sc->wi_cmd_count = 5000; 392 if (sc->sc_sta_firmware_ver > 10101) 393 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 394 ic->ic_caps |= IEEE80211_C_IBSS; 395 /* 396 * version 0.8.3 and newer are the only ones that are known 397 * to currently work. Earlier versions can be made to work, 398 * at least according to the Linux driver but we require 399 * monitor mode so this is irrelevant. 400 */ 401 ic->ic_caps |= IEEE80211_C_HOSTAP; 402 if (sc->sc_sta_firmware_ver >= 10603) 403 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; 404 if (sc->sc_sta_firmware_ver >= 10700) { 405 /* 406 * 1.7.0+ have the necessary support for sta mode WPA. 407 */ 408 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; 409 ic->ic_caps |= IEEE80211_C_WPA; 410 } 411 412 sc->sc_ibss_port = WI_PORTTYPE_IBSS; 413 sc->sc_monitor_port = WI_PORTTYPE_APSILENT; 414 sc->sc_min_rssi = WI_PRISM_MIN_RSSI; 415 sc->sc_max_rssi = WI_PRISM_MAX_RSSI; 416 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 417 break; 418 } 419 420 /* 421 * Find out if we support WEP on this card. 422 */ 423 buflen = sizeof(val); 424 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && 425 val != htole16(0)) 426 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; 427 428 /* Find supported rates. */ 429 buflen = sizeof(ratebuf); 430 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 431 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { 432 nrates = le16toh(*(u_int16_t *)ratebuf); 433 if (nrates > IEEE80211_RATE_MAXSIZE) 434 nrates = IEEE80211_RATE_MAXSIZE; 435 rs->rs_nrates = 0; 436 for (i = 0; i < nrates; i++) 437 if (ratebuf[2+i]) 438 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; 439 } else { 440 /* XXX fallback on error? */ 441 } 442 443 buflen = sizeof(val); 444 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 445 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { 446 sc->sc_dbm_offset = le16toh(val); 447 } 448 449 sc->sc_portnum = WI_DEFAULT_PORT; 450 451 ieee80211_ifattach(ic, macaddr); 452 ic->ic_raw_xmit = wi_raw_xmit; 453 ic->ic_scan_start = wi_scan_start; 454 ic->ic_scan_end = wi_scan_end; 455 ic->ic_set_channel = wi_set_channel; 456 457 ic->ic_vap_create = wi_vap_create; 458 ic->ic_vap_delete = wi_vap_delete; 459 ic->ic_update_mcast = wi_update_mcast; 460 ic->ic_update_promisc = wi_update_promisc; 461 462 ieee80211_radiotap_attach(ic, 463 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 464 WI_TX_RADIOTAP_PRESENT, 465 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 466 WI_RX_RADIOTAP_PRESENT); 467 468 if (bootverbose) 469 ieee80211_announce(ic); 470 471 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, 472 wi_intr, sc, &sc->wi_intrhand, NULL); 473 if (error) { 474 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 475 ieee80211_ifdetach(ic); 476 if_free(sc->sc_ifp); 477 wi_free(dev); 478 return error; 479 } 480 481 return (0); 482 } 483 484 int 485 wi_detach(device_t dev) 486 { 487 struct wi_softc *sc = device_get_softc(dev); 488 struct ifnet *ifp = sc->sc_ifp; 489 struct ieee80211com *ic = ifp->if_l2com; 490 491 /* check if device was removed */ 492 sc->wi_gone |= !bus_child_present(dev); 493 494 wi_stop_locked(sc, 0); 495 ieee80211_ifdetach(ic); 496 497 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); 498 if_free(sc->sc_ifp); 499 wi_free(dev); 500 return (0); 501 } 502 503 static struct ieee80211vap * 504 wi_vap_create(struct ieee80211com *ic, 505 const char name[IFNAMSIZ], int unit, 506 enum ieee80211_opmode opmode, int flags, 507 const uint8_t bssid[IEEE80211_ADDR_LEN], 508 const uint8_t mac[IEEE80211_ADDR_LEN]) 509 { 510 struct wi_softc *sc = ic->ic_ifp->if_softc; 511 struct wi_vap *wvp; 512 struct ieee80211vap *vap; 513 514 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 515 return NULL; 516 wvp = (struct wi_vap *) kmalloc(sizeof(struct wi_vap), 517 M_80211_VAP, M_NOWAIT | M_ZERO); 518 if (wvp == NULL) 519 return NULL; 520 521 vap = &wvp->wv_vap; 522 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 523 524 vap->iv_max_aid = WI_MAX_AID; 525 526 switch (opmode) { 527 case IEEE80211_M_STA: 528 sc->sc_porttype = WI_PORTTYPE_BSS; 529 wvp->wv_newstate = vap->iv_newstate; 530 vap->iv_newstate = wi_newstate_sta; 531 /* need to filter mgt frames to avoid confusing state machine */ 532 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 533 vap->iv_recv_mgmt = wi_recv_mgmt; 534 break; 535 case IEEE80211_M_IBSS: 536 sc->sc_porttype = sc->sc_ibss_port; 537 wvp->wv_newstate = vap->iv_newstate; 538 vap->iv_newstate = wi_newstate_sta; 539 break; 540 case IEEE80211_M_AHDEMO: 541 sc->sc_porttype = WI_PORTTYPE_ADHOC; 542 break; 543 case IEEE80211_M_HOSTAP: 544 sc->sc_porttype = WI_PORTTYPE_HOSTAP; 545 wvp->wv_newstate = vap->iv_newstate; 546 vap->iv_newstate = wi_newstate_hostap; 547 break; 548 case IEEE80211_M_MONITOR: 549 sc->sc_porttype = sc->sc_monitor_port; 550 break; 551 default: 552 break; 553 } 554 555 /* complete setup */ 556 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); 557 ic->ic_opmode = opmode; 558 return vap; 559 } 560 561 static void 562 wi_vap_delete(struct ieee80211vap *vap) 563 { 564 struct wi_vap *wvp = WI_VAP(vap); 565 566 ieee80211_vap_detach(vap); 567 kfree(wvp, M_80211_VAP); 568 } 569 570 int 571 wi_shutdown(device_t dev) 572 { 573 struct wi_softc *sc = device_get_softc(dev); 574 575 wi_stop(sc, 1); 576 return (0); 577 } 578 579 void 580 wi_intr(void *arg) 581 { 582 struct wi_softc *sc = arg; 583 struct ifnet *ifp = sc->sc_ifp; 584 u_int16_t status; 585 586 if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { 587 CSR_WRITE_2(sc, WI_INT_EN, 0); 588 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 589 return; 590 } 591 592 /* Disable interrupts. */ 593 CSR_WRITE_2(sc, WI_INT_EN, 0); 594 595 status = CSR_READ_2(sc, WI_EVENT_STAT); 596 if (status & WI_EV_RX) 597 wi_rx_intr(sc); 598 if (status & WI_EV_ALLOC) 599 wi_tx_intr(sc); 600 if (status & WI_EV_TX_EXC) 601 wi_tx_ex_intr(sc); 602 if (status & WI_EV_INFO) 603 wi_info_intr(sc); 604 if (!ifq_is_oactive(&ifp->if_snd) && !ifq_is_empty(&ifp->if_snd)) 605 wi_start_locked(ifp); 606 607 /* Re-enable interrupts. */ 608 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 609 610 return; 611 } 612 613 static void 614 wi_enable(struct wi_softc *sc) 615 { 616 /* Enable interrupts */ 617 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 618 619 /* enable port */ 620 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 621 sc->sc_enabled = 1; 622 } 623 624 static int 625 wi_setup_locked(struct wi_softc *sc, int porttype, int mode, 626 uint8_t mac[IEEE80211_ADDR_LEN]) 627 { 628 int i; 629 630 wi_reset(sc); 631 632 wi_write_val(sc, WI_RID_PORTTYPE, porttype); 633 wi_write_val(sc, WI_RID_CREATE_IBSS, mode); 634 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); 635 /* XXX IEEE80211_BPF_NOACK wants 0 */ 636 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); 637 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 638 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ 639 640 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); 641 642 /* Allocate fids for the card */ 643 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 644 for (i = 0; i < sc->sc_ntxbuf; i++) { 645 int error = wi_alloc_fid(sc, sc->sc_buflen, 646 &sc->sc_txd[i].d_fid); 647 if (error) { 648 device_printf(sc->sc_dev, 649 "tx buffer allocation failed (error %u)\n", 650 error); 651 return error; 652 } 653 sc->sc_txd[i].d_len = 0; 654 } 655 sc->sc_txcur = sc->sc_txnext = 0; 656 657 return 0; 658 } 659 660 static void 661 wi_init_locked(struct wi_softc *sc) 662 { 663 struct ifnet *ifp = sc->sc_ifp; 664 int wasenabled; 665 666 wasenabled = sc->sc_enabled; 667 if (wasenabled) 668 wi_stop_locked(sc, 1); 669 670 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { 671 if_printf(ifp, "interface not running\n"); 672 wi_stop_locked(sc, 1); 673 return; 674 } 675 676 ifp->if_flags |= IFF_RUNNING; 677 ifq_clr_oactive(&ifp->if_snd); 678 679 callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); 680 681 wi_enable(sc); /* Enable desired port */ 682 } 683 684 void 685 wi_init(void *arg) 686 { 687 struct wi_softc *sc = arg; 688 struct ifnet *ifp = sc->sc_ifp; 689 struct ieee80211com *ic = ifp->if_l2com; 690 691 wi_init_locked(sc); 692 693 if (ifp->if_flags & IFF_RUNNING) 694 ieee80211_start_all(ic); /* start all vap's */ 695 } 696 697 static void 698 wi_stop_locked(struct wi_softc *sc, int disable) 699 { 700 struct ifnet *ifp = sc->sc_ifp; 701 702 if (sc->sc_enabled && !sc->wi_gone) { 703 CSR_WRITE_2(sc, WI_INT_EN, 0); 704 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 705 if (disable) 706 sc->sc_enabled = 0; 707 } else if (sc->wi_gone && disable) /* gone --> not enabled */ 708 sc->sc_enabled = 0; 709 710 callout_stop(&sc->sc_watchdog); 711 sc->sc_tx_timer = 0; 712 sc->sc_false_syns = 0; 713 714 ifp->if_flags &= ~IFF_RUNNING; 715 ifq_clr_oactive(&ifp->if_snd); 716 } 717 718 void 719 wi_stop(struct wi_softc *sc, int disable) 720 { 721 wi_stop_locked(sc, disable); 722 } 723 724 static void 725 wi_set_channel(struct ieee80211com *ic) 726 { 727 struct ifnet *ifp = ic->ic_ifp; 728 struct wi_softc *sc = ifp->if_softc; 729 730 DPRINTF(("%s: channel %d, %sscanning\n", __func__, 731 ieee80211_chan2ieee(ic, ic->ic_curchan), 732 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); 733 734 wi_write_val(sc, WI_RID_OWN_CHNL, 735 ieee80211_chan2ieee(ic, ic->ic_curchan)); 736 } 737 738 static void 739 wi_scan_start(struct ieee80211com *ic) 740 { 741 struct ifnet *ifp = ic->ic_ifp; 742 struct wi_softc *sc = ifp->if_softc; 743 struct ieee80211_scan_state *ss = ic->ic_scan; 744 745 DPRINTF(("%s\n", __func__)); 746 747 /* 748 * Switch device to monitor mode. 749 */ 750 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); 751 if (sc->sc_firmware_type == WI_INTERSIL) { 752 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 753 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 754 } 755 /* force full dwell time to compensate for firmware overhead */ 756 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); 757 758 } 759 760 static void 761 wi_scan_end(struct ieee80211com *ic) 762 { 763 struct ifnet *ifp = ic->ic_ifp; 764 struct wi_softc *sc = ifp->if_softc; 765 766 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); 767 768 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); 769 if (sc->sc_firmware_type == WI_INTERSIL) { 770 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 771 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 772 } 773 } 774 775 static void 776 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 777 int subtype, int rssi, int nf) 778 { 779 struct ieee80211vap *vap = ni->ni_vap; 780 781 switch (subtype) { 782 case IEEE80211_FC0_SUBTYPE_AUTH: 783 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 784 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 785 /* NB: filter frames that trigger state changes */ 786 return; 787 } 788 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); 789 } 790 791 static int 792 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 793 { 794 struct ieee80211com *ic = vap->iv_ic; 795 struct ifnet *ifp = ic->ic_ifp; 796 struct ieee80211_node *bss; 797 struct wi_softc *sc = ifp->if_softc; 798 799 DPRINTF(("%s: %s -> %s\n", __func__, 800 ieee80211_state_name[vap->iv_state], 801 ieee80211_state_name[nstate])); 802 803 if (nstate == IEEE80211_S_AUTH) { 804 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); 805 806 if (vap->iv_flags & IEEE80211_F_PMGTON) { 807 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 808 wi_write_val(sc, WI_RID_PM_ENABLED, 1); 809 } 810 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 811 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 812 wi_write_val(sc, WI_RID_FRAG_THRESH, 813 vap->iv_fragthreshold); 814 wi_write_txrate(sc, vap); 815 816 bss = vap->iv_bss; 817 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); 818 wi_write_val(sc, WI_RID_OWN_CHNL, 819 ieee80211_chan2ieee(ic, bss->ni_chan)); 820 821 /* Configure WEP. */ 822 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 823 wi_write_wep(sc, vap); 824 else 825 sc->sc_encryption = 0; 826 827 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 828 (vap->iv_flags & IEEE80211_F_WPA)) { 829 wi_write_val(sc, WI_RID_WPA_HANDLING, 1); 830 if (vap->iv_appie_wpa != NULL) 831 wi_write_appie(sc, WI_RID_WPA_DATA, 832 vap->iv_appie_wpa); 833 } 834 835 wi_enable(sc); /* enable port */ 836 837 /* Lucent firmware does not support the JOIN RID. */ 838 if (sc->sc_firmware_type == WI_INTERSIL) { 839 struct wi_joinreq join; 840 841 memset(&join, 0, sizeof(join)); 842 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); 843 join.wi_chan = htole16( 844 ieee80211_chan2ieee(ic, bss->ni_chan)); 845 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 846 } 847 848 /* 849 * NB: don't go through 802.11 layer, it'll send auth frame; 850 * instead we drive the state machine from the link status 851 * notification we get on association. 852 */ 853 vap->iv_state = nstate; 854 return (0); 855 } 856 return WI_VAP(vap)->wv_newstate(vap, nstate, arg); 857 } 858 859 static int 860 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 861 { 862 struct ieee80211com *ic = vap->iv_ic; 863 struct ifnet *ifp = ic->ic_ifp; 864 struct ieee80211_node *bss; 865 struct wi_softc *sc = ifp->if_softc; 866 int error; 867 868 DPRINTF(("%s: %s -> %s\n", __func__, 869 ieee80211_state_name[vap->iv_state], 870 ieee80211_state_name[nstate])); 871 872 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); 873 if (error == 0 && nstate == IEEE80211_S_RUN) { 874 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); 875 876 bss = vap->iv_bss; 877 wi_write_ssid(sc, WI_RID_OWN_SSID, 878 bss->ni_essid, bss->ni_esslen); 879 wi_write_val(sc, WI_RID_OWN_CHNL, 880 ieee80211_chan2ieee(ic, bss->ni_chan)); 881 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); 882 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); 883 wi_write_txrate(sc, vap); 884 885 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); 886 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); 887 888 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 889 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 890 wi_write_val(sc, WI_RID_FRAG_THRESH, 891 vap->iv_fragthreshold); 892 893 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && 894 (vap->iv_flags & IEEE80211_F_HIDESSID)) { 895 /* 896 * bit 0 means hide SSID in beacons, 897 * bit 1 means don't respond to bcast probe req 898 */ 899 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); 900 } 901 902 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 903 (vap->iv_flags & IEEE80211_F_WPA) && 904 vap->iv_appie_wpa != NULL) 905 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); 906 907 wi_write_val(sc, WI_RID_PROMISC, 0); 908 909 /* Configure WEP. */ 910 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 911 wi_write_wep(sc, vap); 912 else 913 sc->sc_encryption = 0; 914 915 wi_enable(sc); /* enable port */ 916 } 917 return error; 918 } 919 920 static void 921 wi_start_locked(struct ifnet *ifp) 922 { 923 struct wi_softc *sc = ifp->if_softc; 924 struct ieee80211_node *ni; 925 struct ieee80211_frame *wh; 926 struct mbuf *m0; 927 struct ieee80211_key *k; 928 struct wi_frame frmhdr; 929 const struct llc *llc; 930 int cur; 931 932 if (sc->wi_gone) 933 return; 934 935 memset(&frmhdr, 0, sizeof(frmhdr)); 936 cur = sc->sc_txnext; 937 for (;;) { 938 m0 = ifq_dequeue(&ifp->if_snd); 939 if (m0 == NULL) 940 break; 941 if (sc->sc_txd[cur].d_len != 0) { 942 ifq_prepend(&ifp->if_snd, m0); 943 ifq_set_oactive(&ifp->if_snd); 944 break; 945 } 946 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; 947 948 /* reconstruct 802.3 header */ 949 wh = mtod(m0, struct ieee80211_frame *); 950 switch (wh->i_fc[1]) { 951 case IEEE80211_FC1_DIR_TODS: 952 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 953 wh->i_addr2); 954 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 955 wh->i_addr3); 956 break; 957 case IEEE80211_FC1_DIR_NODS: 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_addr1); 962 break; 963 case IEEE80211_FC1_DIR_FROMDS: 964 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 965 wh->i_addr3); 966 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 967 wh->i_addr1); 968 break; 969 } 970 llc = (const struct llc *)( 971 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); 972 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; 973 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 974 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 975 k = ieee80211_crypto_encap(ni, m0); 976 if (k == NULL) { 977 ieee80211_free_node(ni); 978 m_freem(m0); 979 continue; 980 } 981 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 982 } 983 984 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 985 sc->sc_tx_th.wt_rate = ni->ni_txrate; 986 ieee80211_radiotap_tx(ni->ni_vap, m0); 987 } 988 989 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 990 (caddr_t)&frmhdr.wi_whdr); 991 m_adj(m0, sizeof(struct ieee80211_frame)); 992 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 993 ieee80211_free_node(ni); 994 if (wi_start_tx(ifp, &frmhdr, m0)) 995 continue; 996 997 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 998 IFNET_STAT_INC(ifp, opackets, 1); 999 } 1000 } 1001 1002 static void 1003 wi_start(struct ifnet *ifp, struct ifaltq_subque *ifsq) 1004 { 1005 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq); 1006 wi_start_locked(ifp); 1007 } 1008 1009 static int 1010 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) 1011 { 1012 struct wi_softc *sc = ifp->if_softc; 1013 int cur = sc->sc_txnext; 1014 int fid, off, error; 1015 1016 fid = sc->sc_txd[cur].d_fid; 1017 off = sizeof(*frmhdr); 1018 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 1019 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; 1020 m_freem(m0); 1021 if (error) { 1022 IFNET_STAT_INC(ifp, oerrors, 1); 1023 return -1; 1024 } 1025 sc->sc_txd[cur].d_len = off; 1026 if (sc->sc_txcur == cur) { 1027 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1028 if_printf(ifp, "xmit failed\n"); 1029 sc->sc_txd[cur].d_len = 0; 1030 return -1; 1031 } 1032 sc->sc_tx_timer = 5; 1033 } 1034 return 0; 1035 } 1036 1037 static int 1038 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, 1039 const struct ieee80211_bpf_params *params) 1040 { 1041 struct ieee80211com *ic = ni->ni_ic; 1042 struct ifnet *ifp = ic->ic_ifp; 1043 struct ieee80211vap *vap = ni->ni_vap; 1044 struct wi_softc *sc = ifp->if_softc; 1045 struct ieee80211_key *k; 1046 struct ieee80211_frame *wh; 1047 struct wi_frame frmhdr; 1048 int cur; 1049 int rc = 0; 1050 1051 if (sc->wi_gone) { 1052 rc = ENETDOWN; 1053 goto out; 1054 } 1055 memset(&frmhdr, 0, sizeof(frmhdr)); 1056 cur = sc->sc_txnext; 1057 if (sc->sc_txd[cur].d_len != 0) { 1058 ifq_set_oactive(&ifp->if_snd); 1059 rc = ENOBUFS; 1060 goto out; 1061 } 1062 m0->m_pkthdr.rcvif = NULL; 1063 1064 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1065 (caddr_t)&frmhdr.wi_ehdr); 1066 frmhdr.wi_ehdr.ether_type = 0; 1067 wh = mtod(m0, struct ieee80211_frame *); 1068 1069 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1070 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) 1071 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1072 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1073 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { 1074 k = ieee80211_crypto_encap(ni, m0); 1075 if (k == NULL) { 1076 rc = ENOMEM; 1077 goto out; 1078 } 1079 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1080 } 1081 if (ieee80211_radiotap_active_vap(vap)) { 1082 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1083 ieee80211_radiotap_tx(vap, m0); 1084 } 1085 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1086 (caddr_t)&frmhdr.wi_whdr); 1087 m_adj(m0, sizeof(struct ieee80211_frame)); 1088 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1089 if (wi_start_tx(ifp, &frmhdr, m0) < 0) { 1090 m0 = NULL; 1091 rc = EIO; 1092 goto out; 1093 } 1094 m0 = NULL; 1095 1096 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1097 out: 1098 1099 if (m0 != NULL) 1100 m_freem(m0); 1101 ieee80211_free_node(ni); 1102 return rc; 1103 } 1104 1105 static int 1106 wi_reset(struct wi_softc *sc) 1107 { 1108 #define WI_INIT_TRIES 3 1109 int i, error = 0; 1110 1111 for (i = 0; i < WI_INIT_TRIES; i++) { 1112 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); 1113 if (error == 0) 1114 break; 1115 DELAY(WI_DELAY * 1000); 1116 } 1117 sc->sc_reset = 1; 1118 if (i == WI_INIT_TRIES) { 1119 if_printf(sc->sc_ifp, "reset failed\n"); 1120 return error; 1121 } 1122 1123 CSR_WRITE_2(sc, WI_INT_EN, 0); 1124 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 1125 1126 /* Calibrate timer. */ 1127 wi_write_val(sc, WI_RID_TICK_TIME, 8); 1128 1129 return 0; 1130 #undef WI_INIT_TRIES 1131 } 1132 1133 static void 1134 wi_watchdog_callout(void *arg) 1135 { 1136 struct wi_softc *sc = arg; 1137 struct ifnet *ifp = sc->sc_ifp; 1138 1139 if (!sc->sc_enabled) 1140 return; 1141 1142 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 1143 if_printf(ifp, "device timeout\n"); 1144 IFNET_STAT_INC(ifp, oerrors, 1); 1145 wi_init_locked(ifp->if_softc); 1146 return; 1147 } 1148 callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); 1149 } 1150 1151 static int 1152 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) 1153 { 1154 struct wi_softc *sc = ifp->if_softc; 1155 struct ieee80211com *ic = ifp->if_l2com; 1156 struct ifreq *ifr = (struct ifreq *) data; 1157 int error = 0, startall = 0; 1158 1159 switch (cmd) { 1160 case SIOCSIFFLAGS: 1161 /* 1162 * Can't do promisc and hostap at the same time. If all that's 1163 * changing is the promisc flag, try to short-circuit a call to 1164 * wi_init() by just setting PROMISC in the hardware. 1165 */ 1166 if (ifp->if_flags & IFF_UP) { 1167 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1168 ifp->if_flags & IFF_RUNNING) { 1169 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { 1170 wi_write_val(sc, WI_RID_PROMISC, 1171 (ifp->if_flags & IFF_PROMISC) != 0); 1172 } else { 1173 wi_init_locked(sc); 1174 startall = 1; 1175 } 1176 } else { 1177 wi_init_locked(sc); 1178 startall = 1; 1179 } 1180 } else { 1181 if (ifp->if_flags & IFF_RUNNING) 1182 wi_stop_locked(sc, 1); 1183 sc->wi_gone = 0; 1184 } 1185 sc->sc_if_flags = ifp->if_flags; 1186 if (startall) 1187 ieee80211_start_all(ic); 1188 break; 1189 case SIOCGIFMEDIA: 1190 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1191 break; 1192 case SIOCGIFADDR: 1193 error = ether_ioctl(ifp, cmd, data); 1194 break; 1195 default: 1196 error = EINVAL; 1197 break; 1198 } 1199 return error; 1200 } 1201 1202 static void 1203 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1204 { 1205 struct ieee80211vap *vap = ifp->if_softc; 1206 struct ieee80211com *ic = vap->iv_ic; 1207 struct wi_softc *sc = ic->ic_ifp->if_softc; 1208 u_int16_t val; 1209 int rate, len; 1210 1211 len = sizeof(val); 1212 if (sc->sc_enabled && 1213 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && 1214 len == sizeof(val)) { 1215 /* convert to 802.11 rate */ 1216 val = le16toh(val); 1217 rate = val * 2; 1218 if (sc->sc_firmware_type == WI_LUCENT) { 1219 if (rate == 10) 1220 rate = 11; /* 5.5Mbps */ 1221 } else { 1222 if (rate == 4*2) 1223 rate = 11; /* 5.5Mbps */ 1224 else if (rate == 8*2) 1225 rate = 22; /* 11Mbps */ 1226 } 1227 vap->iv_bss->ni_txrate = rate; 1228 } 1229 ieee80211_media_status(ifp, imr); 1230 } 1231 1232 static void 1233 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1234 { 1235 struct ifnet *ifp = sc->sc_ifp; 1236 struct ieee80211com *ic = ifp->if_l2com; 1237 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1238 struct ieee80211_node *ni = vap->iv_bss; 1239 char ethstr[ETHER_ADDRSTRLEN + 1]; 1240 1241 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1242 return; 1243 1244 DPRINTF(("wi_sync_bssid: bssid %s -> ", kether_ntoa(ni->ni_bssid, ethstr))); 1245 DPRINTF(("%s ?\n", kether_ntoa(new_bssid, ethstr))); 1246 1247 /* In promiscuous mode, the BSSID field is not a reliable 1248 * indicator of the firmware's BSSID. Damp spurious 1249 * change-of-BSSID indications. 1250 */ 1251 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1252 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1253 WI_MAX_FALSE_SYNS)) 1254 return; 1255 1256 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1257 #if 0 1258 /* 1259 * XXX hack; we should create a new node with the new bssid 1260 * and replace the existing ic_bss with it but since we don't 1261 * process management frames to collect state we cheat by 1262 * reusing the existing node as we know wi_newstate will be 1263 * called and it will overwrite the node state. 1264 */ 1265 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1266 #endif 1267 } 1268 1269 static __noinline void 1270 wi_rx_intr(struct wi_softc *sc) 1271 { 1272 struct ifnet *ifp = sc->sc_ifp; 1273 struct ieee80211com *ic = ifp->if_l2com; 1274 struct wi_frame frmhdr; 1275 struct mbuf *m; 1276 struct ieee80211_frame *wh; 1277 struct ieee80211_node *ni; 1278 int fid, len, off; 1279 u_int8_t dir; 1280 u_int16_t status; 1281 int8_t rssi, nf; 1282 1283 fid = CSR_READ_2(sc, WI_RX_FID); 1284 1285 /* First read in the frame header */ 1286 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1287 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1288 IFNET_STAT_INC(ifp, ierrors, 1); 1289 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); 1290 return; 1291 } 1292 1293 /* 1294 * Drop undecryptable or packets with receive errors here 1295 */ 1296 status = le16toh(frmhdr.wi_status); 1297 if (status & WI_STAT_ERRSTAT) { 1298 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1299 IFNET_STAT_INC(ifp, ierrors, 1); 1300 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1301 return; 1302 } 1303 1304 len = le16toh(frmhdr.wi_dat_len); 1305 off = ALIGN(sizeof(struct ieee80211_frame)); 1306 1307 /* 1308 * Sometimes the PRISM2.x returns bogusly large frames. Except 1309 * in monitor mode, just throw them away. 1310 */ 1311 if (off + len > MCLBYTES) { 1312 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1313 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1314 IFNET_STAT_INC(ifp, ierrors, 1); 1315 DPRINTF(("wi_rx_intr: oversized packet\n")); 1316 return; 1317 } else 1318 len = 0; 1319 } 1320 1321 if (off + len > MHLEN) 1322 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1323 else 1324 m = m_gethdr(M_NOWAIT, MT_DATA); 1325 if (m == NULL) { 1326 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1327 IFNET_STAT_INC(ifp, ierrors, 1); 1328 DPRINTF(("wi_rx_intr: MGET failed\n")); 1329 return; 1330 } 1331 m->m_data += off - sizeof(struct ieee80211_frame); 1332 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1333 wi_read_bap(sc, fid, sizeof(frmhdr), 1334 m->m_data + sizeof(struct ieee80211_frame), len); 1335 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1336 m->m_pkthdr.rcvif = ifp; 1337 1338 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1339 1340 rssi = frmhdr.wi_rx_signal; 1341 nf = frmhdr.wi_rx_silence; 1342 if (ieee80211_radiotap_active(ic)) { 1343 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; 1344 uint32_t rstamp; 1345 1346 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1347 le16toh(frmhdr.wi_rx_tstamp1); 1348 tap->wr_tsf = htole64((uint64_t)rstamp); 1349 /* XXX replace divide by table */ 1350 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1351 tap->wr_flags = 0; 1352 if (frmhdr.wi_status & WI_STAT_PCF) 1353 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1354 if (m->m_flags & M_WEP) 1355 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; 1356 tap->wr_antsignal = rssi; 1357 tap->wr_antnoise = nf; 1358 } 1359 1360 /* synchronize driver's BSSID with firmware's BSSID */ 1361 wh = mtod(m, struct ieee80211_frame *); 1362 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1363 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1364 wi_sync_bssid(sc, wh->i_addr3); 1365 1366 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1367 if (ni != NULL) { 1368 (void) ieee80211_input(ni, m, rssi, nf); 1369 ieee80211_free_node(ni); 1370 } else 1371 (void) ieee80211_input_all(ic, m, rssi, nf); 1372 1373 } 1374 1375 static __noinline void 1376 wi_tx_ex_intr(struct wi_softc *sc) 1377 { 1378 struct ifnet *ifp = sc->sc_ifp; 1379 struct wi_frame frmhdr; 1380 int fid; 1381 char ethstr[ETHER_ADDRSTRLEN + 1]; 1382 1383 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1384 /* Read in the frame header */ 1385 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { 1386 u_int16_t status = le16toh(frmhdr.wi_status); 1387 /* 1388 * Spontaneous station disconnects appear as xmit 1389 * errors. Don't announce them and/or count them 1390 * as an output error. 1391 */ 1392 if ((status & WI_TXSTAT_DISCONNECT) == 0) { 1393 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1394 if_printf(ifp, "tx failed"); 1395 if (status & WI_TXSTAT_RET_ERR) 1396 kprintf(", retry limit exceeded"); 1397 if (status & WI_TXSTAT_AGED_ERR) 1398 kprintf(", max transmit lifetime exceeded"); 1399 if (status & WI_TXSTAT_DISCONNECT) 1400 kprintf(", port disconnected"); 1401 if (status & WI_TXSTAT_FORM_ERR) 1402 kprintf(", invalid format (data len %u src %s)", 1403 le16toh(frmhdr.wi_dat_len), 1404 kether_ntoa(frmhdr.wi_ehdr.ether_shost, ethstr)); 1405 if (status & ~0xf) 1406 kprintf(", status=0x%x", status); 1407 kprintf("\n"); 1408 } 1409 IFNET_STAT_INC(ifp, oerrors, 1); 1410 } else { 1411 DPRINTF(("port disconnected\n")); 1412 IFNET_STAT_INC(ifp, collisions, 1); /* XXX */ 1413 } 1414 } else 1415 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); 1416 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); 1417 } 1418 1419 static __noinline void 1420 wi_tx_intr(struct wi_softc *sc) 1421 { 1422 struct ifnet *ifp = sc->sc_ifp; 1423 int fid, cur; 1424 1425 if (sc->wi_gone) 1426 return; 1427 1428 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1429 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1430 1431 cur = sc->sc_txcur; 1432 if (sc->sc_txd[cur].d_fid != fid) { 1433 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", 1434 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); 1435 return; 1436 } 1437 sc->sc_tx_timer = 0; 1438 sc->sc_txd[cur].d_len = 0; 1439 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; 1440 if (sc->sc_txd[cur].d_len == 0) 1441 ifq_clr_oactive(&ifp->if_snd); 1442 else { 1443 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 1444 0, 0)) { 1445 if_printf(ifp, "xmit failed\n"); 1446 sc->sc_txd[cur].d_len = 0; 1447 } else { 1448 sc->sc_tx_timer = 5; 1449 } 1450 } 1451 } 1452 1453 static __noinline void 1454 wi_info_intr(struct wi_softc *sc) 1455 { 1456 struct ifnet *ifp = sc->sc_ifp; 1457 struct ieee80211com *ic = ifp->if_l2com; 1458 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1459 int i, fid, len, off; 1460 u_int16_t ltbuf[2]; 1461 u_int16_t stat; 1462 u_int32_t *ptr; 1463 1464 fid = CSR_READ_2(sc, WI_INFO_FID); 1465 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1466 1467 switch (le16toh(ltbuf[1])) { 1468 case WI_INFO_LINK_STAT: 1469 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1470 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1471 switch (le16toh(stat)) { 1472 case WI_INFO_LINK_STAT_CONNECTED: 1473 if (vap->iv_state == IEEE80211_S_RUN && 1474 vap->iv_opmode != IEEE80211_M_IBSS) 1475 break; 1476 /* fall thru... */ 1477 case WI_INFO_LINK_STAT_AP_CHG: 1478 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ 1479 ieee80211_new_state(vap, IEEE80211_S_RUN, 0); 1480 break; 1481 case WI_INFO_LINK_STAT_AP_INR: 1482 break; 1483 case WI_INFO_LINK_STAT_DISCONNECTED: 1484 /* we dropped off the net; e.g. due to deauth/disassoc */ 1485 vap->iv_bss->ni_associd = 0; 1486 vap->iv_stats.is_rx_deauth++; 1487 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); 1488 break; 1489 case WI_INFO_LINK_STAT_AP_OOR: 1490 /* XXX does this need to be per-vap? */ 1491 ieee80211_beacon_miss(ic); 1492 break; 1493 case WI_INFO_LINK_STAT_ASSOC_FAILED: 1494 if (vap->iv_opmode == IEEE80211_M_STA) 1495 ieee80211_new_state(vap, IEEE80211_S_SCAN, 1496 IEEE80211_SCAN_FAIL_TIMEOUT); 1497 break; 1498 } 1499 break; 1500 case WI_INFO_COUNTERS: 1501 /* some card versions have a larger stats structure */ 1502 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1503 ptr = (u_int32_t *)&sc->sc_stats; 1504 off = sizeof(ltbuf); 1505 for (i = 0; i < len; i++, off += 2, ptr++) { 1506 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1507 #ifdef WI_HERMES_STATS_WAR 1508 if (stat & 0xf000) 1509 stat = ~stat; 1510 #endif 1511 *ptr += stat; 1512 } 1513 IFNET_STAT_SET(ifp, collisions, 1514 sc->sc_stats.wi_tx_single_retries + 1515 sc->sc_stats.wi_tx_multi_retries + 1516 sc->sc_stats.wi_tx_retry_limit); 1517 break; 1518 default: 1519 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1520 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1521 break; 1522 } 1523 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); 1524 } 1525 1526 static int 1527 wi_write_multi(struct wi_softc *sc) 1528 { 1529 struct ifnet *ifp = sc->sc_ifp; 1530 int n; 1531 struct ifmultiaddr *ifma; 1532 struct wi_mcast mlist; 1533 1534 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1535 allmulti: 1536 memset(&mlist, 0, sizeof(mlist)); 1537 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1538 sizeof(mlist)); 1539 } 1540 1541 n = 0; 1542 #ifdef __FreeBSD__ 1543 if_maddr_rlock(ifp); 1544 #endif 1545 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1546 if (ifma->ifma_addr->sa_family != AF_LINK) 1547 continue; 1548 if (n >= 16) 1549 goto allmulti; 1550 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], 1551 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); 1552 n++; 1553 } 1554 #ifdef __FreeBSD__ 1555 if_maddr_runlock(ifp); 1556 #endif 1557 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1558 IEEE80211_ADDR_LEN * n); 1559 } 1560 1561 static void 1562 wi_update_mcast(struct ifnet *ifp) 1563 { 1564 wi_write_multi(ifp->if_softc); 1565 } 1566 1567 static void 1568 wi_update_promisc(struct ifnet *ifp) 1569 { 1570 struct wi_softc *sc = ifp->if_softc; 1571 struct ieee80211com *ic = ifp->if_l2com; 1572 1573 /* XXX handle WEP special case handling? */ 1574 wi_write_val(sc, WI_RID_PROMISC, 1575 (ic->ic_opmode == IEEE80211_M_MONITOR || 1576 (ifp->if_flags & IFF_PROMISC))); 1577 } 1578 1579 static void 1580 wi_read_nicid(struct wi_softc *sc) 1581 { 1582 struct wi_card_ident *id; 1583 char *p; 1584 int len; 1585 u_int16_t ver[4]; 1586 1587 /* getting chip identity */ 1588 memset(ver, 0, sizeof(ver)); 1589 len = sizeof(ver); 1590 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1591 1592 sc->sc_firmware_type = WI_NOTYPE; 1593 sc->sc_nic_id = le16toh(ver[0]); 1594 for (id = wi_card_ident; id->card_name != NULL; id++) { 1595 if (sc->sc_nic_id == id->card_id) { 1596 sc->sc_nic_name = id->card_name; 1597 sc->sc_firmware_type = id->firm_type; 1598 break; 1599 } 1600 } 1601 if (sc->sc_firmware_type == WI_NOTYPE) { 1602 if (sc->sc_nic_id & 0x8000) { 1603 sc->sc_firmware_type = WI_INTERSIL; 1604 sc->sc_nic_name = "Unknown Prism chip"; 1605 } else { 1606 sc->sc_firmware_type = WI_LUCENT; 1607 sc->sc_nic_name = "Unknown Lucent chip"; 1608 } 1609 } 1610 if (bootverbose) 1611 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); 1612 1613 /* get primary firmware version (Only Prism chips) */ 1614 if (sc->sc_firmware_type != WI_LUCENT) { 1615 memset(ver, 0, sizeof(ver)); 1616 len = sizeof(ver); 1617 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 1618 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 1619 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1620 } 1621 1622 /* get station firmware version */ 1623 memset(ver, 0, sizeof(ver)); 1624 len = sizeof(ver); 1625 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 1626 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 1627 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1628 if (sc->sc_firmware_type == WI_INTERSIL && 1629 (sc->sc_sta_firmware_ver == 10102 || 1630 sc->sc_sta_firmware_ver == 20102)) { 1631 char ident[12]; 1632 memset(ident, 0, sizeof(ident)); 1633 len = sizeof(ident); 1634 /* value should be the format like "V2.00-11" */ 1635 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 1636 *(p = (char *)ident) >= 'A' && 1637 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 1638 sc->sc_firmware_type = WI_SYMBOL; 1639 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + 1640 (p[3] - '0') * 1000 + (p[4] - '0') * 100 + 1641 (p[6] - '0') * 10 + (p[7] - '0'); 1642 } 1643 } 1644 if (bootverbose) { 1645 device_printf(sc->sc_dev, "%s Firmware: ", 1646 wi_firmware_names[sc->sc_firmware_type]); 1647 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 1648 kprintf("Primary (%u.%u.%u), ", 1649 sc->sc_pri_firmware_ver / 10000, 1650 (sc->sc_pri_firmware_ver % 10000) / 100, 1651 sc->sc_pri_firmware_ver % 100); 1652 kprintf("Station (%u.%u.%u)\n", 1653 sc->sc_sta_firmware_ver / 10000, 1654 (sc->sc_sta_firmware_ver % 10000) / 100, 1655 sc->sc_sta_firmware_ver % 100); 1656 } 1657 } 1658 1659 static int 1660 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 1661 { 1662 struct wi_ssid ssid; 1663 1664 if (buflen > IEEE80211_NWID_LEN) 1665 return ENOBUFS; 1666 memset(&ssid, 0, sizeof(ssid)); 1667 ssid.wi_len = htole16(buflen); 1668 memcpy(ssid.wi_ssid, buf, buflen); 1669 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 1670 } 1671 1672 static int 1673 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) 1674 { 1675 static const uint16_t lucent_rates[12] = { 1676 [ 0] = 3, /* auto */ 1677 [ 1] = 1, /* 1Mb/s */ 1678 [ 2] = 2, /* 2Mb/s */ 1679 [ 5] = 4, /* 5.5Mb/s */ 1680 [11] = 5 /* 11Mb/s */ 1681 }; 1682 static const uint16_t intersil_rates[12] = { 1683 [ 0] = 0xf, /* auto */ 1684 [ 1] = 0, /* 1Mb/s */ 1685 [ 2] = 1, /* 2Mb/s */ 1686 [ 5] = 2, /* 5.5Mb/s */ 1687 [11] = 3, /* 11Mb/s */ 1688 }; 1689 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? 1690 lucent_rates : intersil_rates; 1691 struct ieee80211com *ic = vap->iv_ic; 1692 const struct ieee80211_txparam *tp; 1693 1694 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 1695 return wi_write_val(sc, WI_RID_TX_RATE, 1696 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? 1697 rates[0] : rates[tp->ucastrate / 2])); 1698 } 1699 1700 static int 1701 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) 1702 { 1703 int error = 0; 1704 int i, keylen; 1705 u_int16_t val; 1706 struct wi_key wkey[IEEE80211_WEP_NKID]; 1707 1708 switch (sc->sc_firmware_type) { 1709 case WI_LUCENT: 1710 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 1711 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 1712 if (error) 1713 break; 1714 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) 1715 break; 1716 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); 1717 if (error) 1718 break; 1719 memset(wkey, 0, sizeof(wkey)); 1720 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1721 keylen = vap->iv_nw_keys[i].wk_keylen; 1722 wkey[i].wi_keylen = htole16(keylen); 1723 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, 1724 keylen); 1725 } 1726 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 1727 wkey, sizeof(wkey)); 1728 sc->sc_encryption = 0; 1729 break; 1730 1731 case WI_INTERSIL: 1732 val = HOST_ENCRYPT | HOST_DECRYPT; 1733 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 1734 /* 1735 * ONLY HWB3163 EVAL-CARD Firmware version 1736 * less than 0.8 variant2 1737 * 1738 * If promiscuous mode disable, Prism2 chip 1739 * does not work with WEP . 1740 * It is under investigation for details. 1741 * (ichiro@netbsd.org) 1742 */ 1743 if (sc->sc_sta_firmware_ver < 802 ) { 1744 /* firm ver < 0.8 variant 2 */ 1745 wi_write_val(sc, WI_RID_PROMISC, 1); 1746 } 1747 wi_write_val(sc, WI_RID_CNFAUTHMODE, 1748 vap->iv_bss->ni_authmode); 1749 val |= PRIVACY_INVOKED; 1750 } else { 1751 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); 1752 } 1753 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 1754 if (error) 1755 break; 1756 sc->sc_encryption = val; 1757 if ((val & PRIVACY_INVOKED) == 0) 1758 break; 1759 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); 1760 break; 1761 } 1762 return error; 1763 } 1764 1765 static int 1766 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 1767 { 1768 int i, s = 0; 1769 1770 if (sc->wi_gone) 1771 return (ENODEV); 1772 1773 /* wait for the busy bit to clear */ 1774 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ 1775 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 1776 break; 1777 DELAY(1*1000); /* 1ms */ 1778 } 1779 if (i == 0) { 1780 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", 1781 __func__, cmd); 1782 sc->wi_gone = 1; 1783 return(ETIMEDOUT); 1784 } 1785 1786 CSR_WRITE_2(sc, WI_PARAM0, val0); 1787 CSR_WRITE_2(sc, WI_PARAM1, val1); 1788 CSR_WRITE_2(sc, WI_PARAM2, val2); 1789 CSR_WRITE_2(sc, WI_COMMAND, cmd); 1790 1791 if (cmd == WI_CMD_INI) { 1792 /* XXX: should sleep here. */ 1793 DELAY(100*1000); /* 100ms delay for init */ 1794 } 1795 for (i = 0; i < WI_TIMEOUT; i++) { 1796 /* 1797 * Wait for 'command complete' bit to be 1798 * set in the event status register. 1799 */ 1800 s = CSR_READ_2(sc, WI_EVENT_STAT); 1801 if (s & WI_EV_CMD) { 1802 /* Ack the event and read result code. */ 1803 s = CSR_READ_2(sc, WI_STATUS); 1804 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1805 if (s & WI_STAT_CMD_RESULT) { 1806 return(EIO); 1807 } 1808 break; 1809 } 1810 DELAY(WI_DELAY); 1811 } 1812 1813 if (i == WI_TIMEOUT) { 1814 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " 1815 "event status 0x%04x\n", __func__, cmd, s); 1816 if (s == 0xffff) 1817 sc->wi_gone = 1; 1818 return(ETIMEDOUT); 1819 } 1820 return (0); 1821 } 1822 1823 static int 1824 wi_seek_bap(struct wi_softc *sc, int id, int off) 1825 { 1826 int i, status; 1827 1828 CSR_WRITE_2(sc, WI_SEL0, id); 1829 CSR_WRITE_2(sc, WI_OFF0, off); 1830 1831 for (i = 0; ; i++) { 1832 status = CSR_READ_2(sc, WI_OFF0); 1833 if ((status & WI_OFF_BUSY) == 0) 1834 break; 1835 if (i == WI_TIMEOUT) { 1836 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", 1837 __func__, id, off); 1838 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1839 if (status == 0xffff) 1840 sc->wi_gone = 1; 1841 return ETIMEDOUT; 1842 } 1843 DELAY(1); 1844 } 1845 if (status & WI_OFF_ERR) { 1846 device_printf(sc->sc_dev, "%s: error, id %x off %x\n", 1847 __func__, id, off); 1848 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1849 return EIO; 1850 } 1851 sc->sc_bap_id = id; 1852 sc->sc_bap_off = off; 1853 return 0; 1854 } 1855 1856 static int 1857 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1858 { 1859 u_int16_t *ptr; 1860 int i, error, cnt; 1861 1862 if (buflen == 0) 1863 return 0; 1864 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1865 if ((error = wi_seek_bap(sc, id, off)) != 0) 1866 return error; 1867 } 1868 cnt = (buflen + 1) / 2; 1869 ptr = (u_int16_t *)buf; 1870 for (i = 0; i < cnt; i++) 1871 *ptr++ = CSR_READ_2(sc, WI_DATA0); 1872 sc->sc_bap_off += cnt * 2; 1873 return 0; 1874 } 1875 1876 static int 1877 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1878 { 1879 u_int16_t *ptr; 1880 int i, error, cnt; 1881 1882 if (buflen == 0) 1883 return 0; 1884 1885 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1886 if ((error = wi_seek_bap(sc, id, off)) != 0) 1887 return error; 1888 } 1889 cnt = (buflen + 1) / 2; 1890 ptr = (u_int16_t *)buf; 1891 for (i = 0; i < cnt; i++) 1892 CSR_WRITE_2(sc, WI_DATA0, ptr[i]); 1893 sc->sc_bap_off += cnt * 2; 1894 1895 return 0; 1896 } 1897 1898 static int 1899 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 1900 { 1901 int error, len; 1902 struct mbuf *m; 1903 1904 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 1905 if (m->m_len == 0) 1906 continue; 1907 1908 len = min(m->m_len, totlen); 1909 1910 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 1911 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 1912 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 1913 totlen); 1914 } 1915 1916 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 1917 return error; 1918 1919 off += m->m_len; 1920 totlen -= len; 1921 } 1922 return 0; 1923 } 1924 1925 static int 1926 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 1927 { 1928 int i; 1929 1930 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 1931 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", 1932 __func__, len); 1933 return ENOMEM; 1934 } 1935 1936 for (i = 0; i < WI_TIMEOUT; i++) { 1937 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 1938 break; 1939 DELAY(1); 1940 } 1941 if (i == WI_TIMEOUT) { 1942 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); 1943 return ETIMEDOUT; 1944 } 1945 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 1946 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1947 return 0; 1948 } 1949 1950 static int 1951 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 1952 { 1953 int error, len; 1954 u_int16_t ltbuf[2]; 1955 1956 /* Tell the NIC to enter record read mode. */ 1957 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 1958 if (error) 1959 return error; 1960 1961 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 1962 if (error) 1963 return error; 1964 1965 if (le16toh(ltbuf[1]) != rid) { 1966 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 1967 rid, le16toh(ltbuf[1])); 1968 return EIO; 1969 } 1970 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 1971 if (*buflenp < len) { 1972 device_printf(sc->sc_dev, "record buffer is too small, " 1973 "rid=%x, size=%d, len=%d\n", 1974 rid, *buflenp, len); 1975 return ENOSPC; 1976 } 1977 *buflenp = len; 1978 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 1979 } 1980 1981 static int 1982 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 1983 { 1984 int error; 1985 u_int16_t ltbuf[2]; 1986 1987 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 1988 ltbuf[1] = htole16(rid); 1989 1990 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 1991 if (error) { 1992 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", 1993 __func__, rid); 1994 return error; 1995 } 1996 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 1997 if (error) { 1998 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", 1999 __func__, rid); 2000 return error; 2001 } 2002 2003 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2004 } 2005 2006 static int 2007 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) 2008 { 2009 /* NB: 42 bytes is probably ok to have on the stack */ 2010 char buf[sizeof(uint16_t) + 40]; 2011 2012 if (ie->ie_len > 40) 2013 return EINVAL; 2014 /* NB: firmware requires 16-bit ie length before ie data */ 2015 *(uint16_t *) buf = htole16(ie->ie_len); 2016 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); 2017 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); 2018 } 2019 2020 int 2021 wi_alloc(device_t dev, int rid) 2022 { 2023 struct wi_softc *sc = device_get_softc(dev); 2024 2025 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 2026 sc->iobase_rid = rid; 2027 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, 2028 &sc->iobase_rid, 0, ~0, (1 << 6), 2029 rman_make_alignment_flags(1 << 6) | RF_ACTIVE); 2030 if (sc->iobase == NULL) { 2031 device_printf(dev, "No I/O space?!\n"); 2032 return ENXIO; 2033 } 2034 2035 sc->wi_io_addr = rman_get_start(sc->iobase); 2036 sc->wi_btag = rman_get_bustag(sc->iobase); 2037 sc->wi_bhandle = rman_get_bushandle(sc->iobase); 2038 } else { 2039 sc->mem_rid = rid; 2040 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 2041 &sc->mem_rid, RF_ACTIVE); 2042 if (sc->mem == NULL) { 2043 device_printf(dev, "No Mem space on prism2.5?\n"); 2044 return ENXIO; 2045 } 2046 2047 sc->wi_btag = rman_get_bustag(sc->mem); 2048 sc->wi_bhandle = rman_get_bushandle(sc->mem); 2049 } 2050 2051 sc->irq_rid = 0; 2052 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 2053 RF_ACTIVE | 2054 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); 2055 if (sc->irq == NULL) { 2056 wi_free(dev); 2057 device_printf(dev, "No irq?!\n"); 2058 return ENXIO; 2059 } 2060 2061 sc->sc_dev = dev; 2062 sc->sc_unit = device_get_unit(dev); 2063 return 0; 2064 } 2065 2066 void 2067 wi_free(device_t dev) 2068 { 2069 struct wi_softc *sc = device_get_softc(dev); 2070 2071 if (sc->iobase != NULL) { 2072 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); 2073 sc->iobase = NULL; 2074 } 2075 if (sc->irq != NULL) { 2076 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 2077 sc->irq = NULL; 2078 } 2079 if (sc->mem != NULL) { 2080 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 2081 sc->mem = NULL; 2082 } 2083 } 2084