Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/netif/wi/if_wi.c
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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 = &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 #ifdef notyet 345 ifq_set_ready(&ifp->if_snd); 346 #endif 347 348 ic->ic_ifp = ifp; 349 ic->ic_phytype = IEEE80211_T_DS; 350 ic->ic_opmode = IEEE80211_M_STA; 351 ic->ic_caps = IEEE80211_C_STA 352 | IEEE80211_C_PMGT 353 | IEEE80211_C_MONITOR 354 ; 355 356 /* 357 * Query the card for available channels and setup the 358 * channel table. We assume these are all 11b channels. 359 */ 360 buflen = sizeof(val); 361 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) 362 val = htole16(0x1fff); /* assume 1-11 */ 363 KASSERT(val != 0, ("wi_attach: no available channels listed!")); 364 365 val <<= 1; /* shift for base 1 indices */ 366 for (i = 1; i < 16; i++) { 367 struct ieee80211_channel *c; 368 369 if (!isset((u_int8_t*)&val, i)) 370 continue; 371 c = &ic->ic_channels[ic->ic_nchans++]; 372 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 373 c->ic_flags = IEEE80211_CHAN_B; 374 c->ic_ieee = i; 375 /* XXX txpowers? */ 376 } 377 378 /* 379 * Set flags based on firmware version. 380 */ 381 switch (sc->sc_firmware_type) { 382 case WI_LUCENT: 383 sc->sc_ntxbuf = 1; 384 ic->ic_caps |= IEEE80211_C_IBSS; 385 386 sc->sc_ibss_port = WI_PORTTYPE_BSS; 387 sc->sc_monitor_port = WI_PORTTYPE_ADHOC; 388 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; 389 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; 390 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 391 break; 392 case WI_INTERSIL: 393 sc->sc_ntxbuf = WI_NTXBUF; 394 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR 395 | WI_FLAGS_HAS_ROAMING; 396 /* 397 * Old firmware are slow, so give peace a chance. 398 */ 399 if (sc->sc_sta_firmware_ver < 10000) 400 sc->wi_cmd_count = 5000; 401 if (sc->sc_sta_firmware_ver > 10101) 402 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 403 ic->ic_caps |= IEEE80211_C_IBSS; 404 /* 405 * version 0.8.3 and newer are the only ones that are known 406 * to currently work. Earlier versions can be made to work, 407 * at least according to the Linux driver but we require 408 * monitor mode so this is irrelevant. 409 */ 410 ic->ic_caps |= IEEE80211_C_HOSTAP; 411 if (sc->sc_sta_firmware_ver >= 10603) 412 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; 413 if (sc->sc_sta_firmware_ver >= 10700) { 414 /* 415 * 1.7.0+ have the necessary support for sta mode WPA. 416 */ 417 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; 418 ic->ic_caps |= IEEE80211_C_WPA; 419 } 420 421 sc->sc_ibss_port = WI_PORTTYPE_IBSS; 422 sc->sc_monitor_port = WI_PORTTYPE_APSILENT; 423 sc->sc_min_rssi = WI_PRISM_MIN_RSSI; 424 sc->sc_max_rssi = WI_PRISM_MAX_RSSI; 425 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 426 break; 427 } 428 429 /* 430 * Find out if we support WEP on this card. 431 */ 432 buflen = sizeof(val); 433 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && 434 val != htole16(0)) 435 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; 436 437 /* Find supported rates. */ 438 buflen = sizeof(ratebuf); 439 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 440 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { 441 nrates = le16toh(*(u_int16_t *)ratebuf); 442 if (nrates > IEEE80211_RATE_MAXSIZE) 443 nrates = IEEE80211_RATE_MAXSIZE; 444 rs->rs_nrates = 0; 445 for (i = 0; i < nrates; i++) 446 if (ratebuf[2+i]) 447 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; 448 } else { 449 /* XXX fallback on error? */ 450 } 451 452 buflen = sizeof(val); 453 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 454 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { 455 sc->sc_dbm_offset = le16toh(val); 456 } 457 458 sc->sc_portnum = WI_DEFAULT_PORT; 459 460 ieee80211_ifattach(ic, macaddr); 461 ic->ic_raw_xmit = wi_raw_xmit; 462 ic->ic_scan_start = wi_scan_start; 463 ic->ic_scan_end = wi_scan_end; 464 ic->ic_set_channel = wi_set_channel; 465 466 ic->ic_vap_create = wi_vap_create; 467 ic->ic_vap_delete = wi_vap_delete; 468 ic->ic_update_mcast = wi_update_mcast; 469 ic->ic_update_promisc = wi_update_promisc; 470 471 ieee80211_radiotap_attach(ic, 472 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 473 WI_TX_RADIOTAP_PRESENT, 474 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 475 WI_RX_RADIOTAP_PRESENT); 476 477 if (bootverbose) 478 ieee80211_announce(ic); 479 480 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, 481 wi_intr, sc, &sc->wi_intrhand, NULL); 482 if (error) { 483 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 484 ieee80211_ifdetach(ic); 485 if_free(sc->sc_ifp); 486 wi_free(dev); 487 return error; 488 } 489 490 return (0); 491 } 492 493 int 494 wi_detach(device_t dev) 495 { 496 struct wi_softc *sc = device_get_softc(dev); 497 struct ifnet *ifp = sc->sc_ifp; 498 struct ieee80211com *ic = ifp->if_l2com; 499 500 /* check if device was removed */ 501 sc->wi_gone |= !bus_child_present(dev); 502 503 wi_stop_locked(sc, 0); 504 ieee80211_ifdetach(ic); 505 506 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); 507 if_free(sc->sc_ifp); 508 wi_free(dev); 509 return (0); 510 } 511 512 static struct ieee80211vap * 513 wi_vap_create(struct ieee80211com *ic, 514 const char name[IFNAMSIZ], int unit, 515 enum ieee80211_opmode opmode, int flags, 516 const uint8_t bssid[IEEE80211_ADDR_LEN], 517 const uint8_t mac[IEEE80211_ADDR_LEN]) 518 { 519 struct wi_softc *sc = ic->ic_ifp->if_softc; 520 struct wi_vap *wvp; 521 struct ieee80211vap *vap; 522 523 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 524 return NULL; 525 wvp = (struct wi_vap *) kmalloc(sizeof(struct wi_vap), 526 M_80211_VAP, M_NOWAIT | M_ZERO); 527 if (wvp == NULL) 528 return NULL; 529 530 vap = &wvp->wv_vap; 531 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 532 533 vap->iv_max_aid = WI_MAX_AID; 534 535 switch (opmode) { 536 case IEEE80211_M_STA: 537 sc->sc_porttype = WI_PORTTYPE_BSS; 538 wvp->wv_newstate = vap->iv_newstate; 539 vap->iv_newstate = wi_newstate_sta; 540 /* need to filter mgt frames to avoid confusing state machine */ 541 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 542 vap->iv_recv_mgmt = wi_recv_mgmt; 543 break; 544 case IEEE80211_M_IBSS: 545 sc->sc_porttype = sc->sc_ibss_port; 546 wvp->wv_newstate = vap->iv_newstate; 547 vap->iv_newstate = wi_newstate_sta; 548 break; 549 case IEEE80211_M_AHDEMO: 550 sc->sc_porttype = WI_PORTTYPE_ADHOC; 551 break; 552 case IEEE80211_M_HOSTAP: 553 sc->sc_porttype = WI_PORTTYPE_HOSTAP; 554 wvp->wv_newstate = vap->iv_newstate; 555 vap->iv_newstate = wi_newstate_hostap; 556 break; 557 case IEEE80211_M_MONITOR: 558 sc->sc_porttype = sc->sc_monitor_port; 559 break; 560 default: 561 break; 562 } 563 564 /* complete setup */ 565 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); 566 ic->ic_opmode = opmode; 567 return vap; 568 } 569 570 static void 571 wi_vap_delete(struct ieee80211vap *vap) 572 { 573 struct wi_vap *wvp = WI_VAP(vap); 574 575 ieee80211_vap_detach(vap); 576 kfree(wvp, M_80211_VAP); 577 } 578 579 int 580 wi_shutdown(device_t dev) 581 { 582 struct wi_softc *sc = device_get_softc(dev); 583 584 wi_stop(sc, 1); 585 return (0); 586 } 587 588 void 589 wi_intr(void *arg) 590 { 591 struct wi_softc *sc = arg; 592 struct ifnet *ifp = sc->sc_ifp; 593 u_int16_t status; 594 595 if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { 596 CSR_WRITE_2(sc, WI_INT_EN, 0); 597 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 598 return; 599 } 600 601 /* Disable interrupts. */ 602 CSR_WRITE_2(sc, WI_INT_EN, 0); 603 604 status = CSR_READ_2(sc, WI_EVENT_STAT); 605 if (status & WI_EV_RX) 606 wi_rx_intr(sc); 607 if (status & WI_EV_ALLOC) 608 wi_tx_intr(sc); 609 if (status & WI_EV_TX_EXC) 610 wi_tx_ex_intr(sc); 611 if (status & WI_EV_INFO) 612 wi_info_intr(sc); 613 if (!ifq_is_oactive(&ifp->if_snd) && !ifq_is_empty(&ifp->if_snd)) 614 wi_start_locked(ifp); 615 616 /* Re-enable interrupts. */ 617 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 618 619 return; 620 } 621 622 static void 623 wi_enable(struct wi_softc *sc) 624 { 625 /* Enable interrupts */ 626 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 627 628 /* enable port */ 629 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 630 sc->sc_enabled = 1; 631 } 632 633 static int 634 wi_setup_locked(struct wi_softc *sc, int porttype, int mode, 635 uint8_t mac[IEEE80211_ADDR_LEN]) 636 { 637 int i; 638 639 wi_reset(sc); 640 641 wi_write_val(sc, WI_RID_PORTTYPE, porttype); 642 wi_write_val(sc, WI_RID_CREATE_IBSS, mode); 643 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); 644 /* XXX IEEE80211_BPF_NOACK wants 0 */ 645 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); 646 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 647 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ 648 649 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); 650 651 /* Allocate fids for the card */ 652 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 653 for (i = 0; i < sc->sc_ntxbuf; i++) { 654 int error = wi_alloc_fid(sc, sc->sc_buflen, 655 &sc->sc_txd[i].d_fid); 656 if (error) { 657 device_printf(sc->sc_dev, 658 "tx buffer allocation failed (error %u)\n", 659 error); 660 return error; 661 } 662 sc->sc_txd[i].d_len = 0; 663 } 664 sc->sc_txcur = sc->sc_txnext = 0; 665 666 return 0; 667 } 668 669 static void 670 wi_init_locked(struct wi_softc *sc) 671 { 672 struct ifnet *ifp = sc->sc_ifp; 673 int wasenabled; 674 675 wasenabled = sc->sc_enabled; 676 if (wasenabled) 677 wi_stop_locked(sc, 1); 678 679 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { 680 if_printf(ifp, "interface not running\n"); 681 wi_stop_locked(sc, 1); 682 return; 683 } 684 685 ifp->if_flags |= IFF_RUNNING; 686 ifq_clr_oactive(&ifp->if_snd); 687 688 callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); 689 690 wi_enable(sc); /* Enable desired port */ 691 } 692 693 void 694 wi_init(void *arg) 695 { 696 struct wi_softc *sc = arg; 697 struct ifnet *ifp = sc->sc_ifp; 698 struct ieee80211com *ic = ifp->if_l2com; 699 700 wi_init_locked(sc); 701 702 if (ifp->if_flags & IFF_RUNNING) 703 ieee80211_start_all(ic); /* start all vap's */ 704 } 705 706 static void 707 wi_stop_locked(struct wi_softc *sc, int disable) 708 { 709 struct ifnet *ifp = sc->sc_ifp; 710 711 if (sc->sc_enabled && !sc->wi_gone) { 712 CSR_WRITE_2(sc, WI_INT_EN, 0); 713 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 714 if (disable) 715 sc->sc_enabled = 0; 716 } else if (sc->wi_gone && disable) /* gone --> not enabled */ 717 sc->sc_enabled = 0; 718 719 callout_stop(&sc->sc_watchdog); 720 sc->sc_tx_timer = 0; 721 sc->sc_false_syns = 0; 722 723 ifp->if_flags &= ~IFF_RUNNING; 724 ifq_clr_oactive(&ifp->if_snd); 725 } 726 727 void 728 wi_stop(struct wi_softc *sc, int disable) 729 { 730 wi_stop_locked(sc, disable); 731 } 732 733 static void 734 wi_set_channel(struct ieee80211com *ic) 735 { 736 struct ifnet *ifp = ic->ic_ifp; 737 struct wi_softc *sc = ifp->if_softc; 738 739 DPRINTF(("%s: channel %d, %sscanning\n", __func__, 740 ieee80211_chan2ieee(ic, ic->ic_curchan), 741 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); 742 743 wi_write_val(sc, WI_RID_OWN_CHNL, 744 ieee80211_chan2ieee(ic, ic->ic_curchan)); 745 } 746 747 static void 748 wi_scan_start(struct ieee80211com *ic) 749 { 750 struct ifnet *ifp = ic->ic_ifp; 751 struct wi_softc *sc = ifp->if_softc; 752 struct ieee80211_scan_state *ss = ic->ic_scan; 753 754 DPRINTF(("%s\n", __func__)); 755 756 /* 757 * Switch device to monitor mode. 758 */ 759 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); 760 if (sc->sc_firmware_type == WI_INTERSIL) { 761 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 762 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 763 } 764 /* force full dwell time to compensate for firmware overhead */ 765 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); 766 767 } 768 769 static void 770 wi_scan_end(struct ieee80211com *ic) 771 { 772 struct ifnet *ifp = ic->ic_ifp; 773 struct wi_softc *sc = ifp->if_softc; 774 775 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); 776 777 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); 778 if (sc->sc_firmware_type == WI_INTERSIL) { 779 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 780 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 781 } 782 } 783 784 static void 785 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 786 int subtype, int rssi, int nf) 787 { 788 struct ieee80211vap *vap = ni->ni_vap; 789 790 switch (subtype) { 791 case IEEE80211_FC0_SUBTYPE_AUTH: 792 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 793 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 794 /* NB: filter frames that trigger state changes */ 795 return; 796 } 797 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); 798 } 799 800 static int 801 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 802 { 803 struct ieee80211com *ic = vap->iv_ic; 804 struct ifnet *ifp = ic->ic_ifp; 805 struct ieee80211_node *bss; 806 struct wi_softc *sc = ifp->if_softc; 807 808 DPRINTF(("%s: %s -> %s\n", __func__, 809 ieee80211_state_name[vap->iv_state], 810 ieee80211_state_name[nstate])); 811 812 if (nstate == IEEE80211_S_AUTH) { 813 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); 814 815 if (vap->iv_flags & IEEE80211_F_PMGTON) { 816 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 817 wi_write_val(sc, WI_RID_PM_ENABLED, 1); 818 } 819 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 820 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 821 wi_write_val(sc, WI_RID_FRAG_THRESH, 822 vap->iv_fragthreshold); 823 wi_write_txrate(sc, vap); 824 825 bss = vap->iv_bss; 826 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); 827 wi_write_val(sc, WI_RID_OWN_CHNL, 828 ieee80211_chan2ieee(ic, bss->ni_chan)); 829 830 /* Configure WEP. */ 831 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 832 wi_write_wep(sc, vap); 833 else 834 sc->sc_encryption = 0; 835 836 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 837 (vap->iv_flags & IEEE80211_F_WPA)) { 838 wi_write_val(sc, WI_RID_WPA_HANDLING, 1); 839 if (vap->iv_appie_wpa != NULL) 840 wi_write_appie(sc, WI_RID_WPA_DATA, 841 vap->iv_appie_wpa); 842 } 843 844 wi_enable(sc); /* enable port */ 845 846 /* Lucent firmware does not support the JOIN RID. */ 847 if (sc->sc_firmware_type == WI_INTERSIL) { 848 struct wi_joinreq join; 849 850 memset(&join, 0, sizeof(join)); 851 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); 852 join.wi_chan = htole16( 853 ieee80211_chan2ieee(ic, bss->ni_chan)); 854 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 855 } 856 857 /* 858 * NB: don't go through 802.11 layer, it'll send auth frame; 859 * instead we drive the state machine from the link status 860 * notification we get on association. 861 */ 862 vap->iv_state = nstate; 863 return (0); 864 } 865 return WI_VAP(vap)->wv_newstate(vap, nstate, arg); 866 } 867 868 static int 869 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 870 { 871 struct ieee80211com *ic = vap->iv_ic; 872 struct ifnet *ifp = ic->ic_ifp; 873 struct ieee80211_node *bss; 874 struct wi_softc *sc = ifp->if_softc; 875 int error; 876 877 DPRINTF(("%s: %s -> %s\n", __func__, 878 ieee80211_state_name[vap->iv_state], 879 ieee80211_state_name[nstate])); 880 881 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); 882 if (error == 0 && nstate == IEEE80211_S_RUN) { 883 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); 884 885 bss = vap->iv_bss; 886 wi_write_ssid(sc, WI_RID_OWN_SSID, 887 bss->ni_essid, bss->ni_esslen); 888 wi_write_val(sc, WI_RID_OWN_CHNL, 889 ieee80211_chan2ieee(ic, bss->ni_chan)); 890 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); 891 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); 892 wi_write_txrate(sc, vap); 893 894 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); 895 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); 896 897 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 898 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 899 wi_write_val(sc, WI_RID_FRAG_THRESH, 900 vap->iv_fragthreshold); 901 902 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && 903 (vap->iv_flags & IEEE80211_F_HIDESSID)) { 904 /* 905 * bit 0 means hide SSID in beacons, 906 * bit 1 means don't respond to bcast probe req 907 */ 908 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); 909 } 910 911 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 912 (vap->iv_flags & IEEE80211_F_WPA) && 913 vap->iv_appie_wpa != NULL) 914 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); 915 916 wi_write_val(sc, WI_RID_PROMISC, 0); 917 918 /* Configure WEP. */ 919 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 920 wi_write_wep(sc, vap); 921 else 922 sc->sc_encryption = 0; 923 924 wi_enable(sc); /* enable port */ 925 } 926 return error; 927 } 928 929 static void 930 wi_start_locked(struct ifnet *ifp) 931 { 932 struct wi_softc *sc = ifp->if_softc; 933 struct ieee80211_node *ni; 934 struct ieee80211_frame *wh; 935 struct mbuf *m0; 936 struct ieee80211_key *k; 937 struct wi_frame frmhdr; 938 const struct llc *llc; 939 int cur; 940 941 if (sc->wi_gone) 942 return; 943 944 memset(&frmhdr, 0, sizeof(frmhdr)); 945 cur = sc->sc_txnext; 946 for (;;) { 947 m0 = ifq_dequeue(&ifp->if_snd); 948 if (m0 == NULL) 949 break; 950 if (sc->sc_txd[cur].d_len != 0) { 951 ifq_prepend(&ifp->if_snd, m0); 952 ifq_set_oactive(&ifp->if_snd); 953 break; 954 } 955 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; 956 957 /* reconstruct 802.3 header */ 958 wh = mtod(m0, struct ieee80211_frame *); 959 switch (wh->i_fc[1]) { 960 case IEEE80211_FC1_DIR_TODS: 961 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 962 wh->i_addr2); 963 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 964 wh->i_addr3); 965 break; 966 case IEEE80211_FC1_DIR_NODS: 967 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 968 wh->i_addr2); 969 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 970 wh->i_addr1); 971 break; 972 case IEEE80211_FC1_DIR_FROMDS: 973 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 974 wh->i_addr3); 975 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 976 wh->i_addr1); 977 break; 978 } 979 llc = (const struct llc *)( 980 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); 981 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; 982 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 983 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 984 k = ieee80211_crypto_encap(ni, m0); 985 if (k == NULL) { 986 ieee80211_free_node(ni); 987 m_freem(m0); 988 continue; 989 } 990 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 991 } 992 993 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 994 sc->sc_tx_th.wt_rate = ni->ni_txrate; 995 ieee80211_radiotap_tx(ni->ni_vap, m0); 996 } 997 998 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 999 (caddr_t)&frmhdr.wi_whdr); 1000 m_adj(m0, sizeof(struct ieee80211_frame)); 1001 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1002 ieee80211_free_node(ni); 1003 if (wi_start_tx(ifp, &frmhdr, m0)) 1004 continue; 1005 1006 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1007 IFNET_STAT_INC(ifp, opackets, 1); 1008 } 1009 } 1010 1011 static void 1012 wi_start(struct ifnet *ifp, struct ifaltq_subque *ifsq) 1013 { 1014 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq); 1015 wi_start_locked(ifp); 1016 } 1017 1018 static int 1019 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) 1020 { 1021 struct wi_softc *sc = ifp->if_softc; 1022 int cur = sc->sc_txnext; 1023 int fid, off, error; 1024 1025 fid = sc->sc_txd[cur].d_fid; 1026 off = sizeof(*frmhdr); 1027 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 1028 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; 1029 m_freem(m0); 1030 if (error) { 1031 IFNET_STAT_INC(ifp, oerrors, 1); 1032 return -1; 1033 } 1034 sc->sc_txd[cur].d_len = off; 1035 if (sc->sc_txcur == cur) { 1036 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1037 if_printf(ifp, "xmit failed\n"); 1038 sc->sc_txd[cur].d_len = 0; 1039 return -1; 1040 } 1041 sc->sc_tx_timer = 5; 1042 } 1043 return 0; 1044 } 1045 1046 static int 1047 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, 1048 const struct ieee80211_bpf_params *params) 1049 { 1050 struct ieee80211com *ic = ni->ni_ic; 1051 struct ifnet *ifp = ic->ic_ifp; 1052 struct ieee80211vap *vap = ni->ni_vap; 1053 struct wi_softc *sc = ifp->if_softc; 1054 struct ieee80211_key *k; 1055 struct ieee80211_frame *wh; 1056 struct wi_frame frmhdr; 1057 int cur; 1058 int rc = 0; 1059 1060 if (sc->wi_gone) { 1061 rc = ENETDOWN; 1062 goto out; 1063 } 1064 memset(&frmhdr, 0, sizeof(frmhdr)); 1065 cur = sc->sc_txnext; 1066 if (sc->sc_txd[cur].d_len != 0) { 1067 ifq_set_oactive(&ifp->if_snd); 1068 rc = ENOBUFS; 1069 goto out; 1070 } 1071 m0->m_pkthdr.rcvif = NULL; 1072 1073 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1074 (caddr_t)&frmhdr.wi_ehdr); 1075 frmhdr.wi_ehdr.ether_type = 0; 1076 wh = mtod(m0, struct ieee80211_frame *); 1077 1078 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1079 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) 1080 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1081 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) && 1082 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { 1083 k = ieee80211_crypto_encap(ni, m0); 1084 if (k == NULL) { 1085 rc = ENOMEM; 1086 goto out; 1087 } 1088 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1089 } 1090 if (ieee80211_radiotap_active_vap(vap)) { 1091 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1092 ieee80211_radiotap_tx(vap, m0); 1093 } 1094 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1095 (caddr_t)&frmhdr.wi_whdr); 1096 m_adj(m0, sizeof(struct ieee80211_frame)); 1097 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1098 if (wi_start_tx(ifp, &frmhdr, m0) < 0) { 1099 m0 = NULL; 1100 rc = EIO; 1101 goto out; 1102 } 1103 m0 = NULL; 1104 1105 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1106 out: 1107 1108 if (m0 != NULL) 1109 m_freem(m0); 1110 ieee80211_free_node(ni); 1111 return rc; 1112 } 1113 1114 static int 1115 wi_reset(struct wi_softc *sc) 1116 { 1117 #define WI_INIT_TRIES 3 1118 int i, error = 0; 1119 1120 for (i = 0; i < WI_INIT_TRIES; i++) { 1121 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); 1122 if (error == 0) 1123 break; 1124 DELAY(WI_DELAY * 1000); 1125 } 1126 sc->sc_reset = 1; 1127 if (i == WI_INIT_TRIES) { 1128 if_printf(sc->sc_ifp, "reset failed\n"); 1129 return error; 1130 } 1131 1132 CSR_WRITE_2(sc, WI_INT_EN, 0); 1133 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 1134 1135 /* Calibrate timer. */ 1136 wi_write_val(sc, WI_RID_TICK_TIME, 8); 1137 1138 return 0; 1139 #undef WI_INIT_TRIES 1140 } 1141 1142 static void 1143 wi_watchdog_callout(void *arg) 1144 { 1145 struct wi_softc *sc = arg; 1146 struct ifnet *ifp = sc->sc_ifp; 1147 1148 if (!sc->sc_enabled) 1149 return; 1150 1151 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 1152 if_printf(ifp, "device timeout\n"); 1153 IFNET_STAT_INC(ifp, oerrors, 1); 1154 wi_init_locked(ifp->if_softc); 1155 return; 1156 } 1157 callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); 1158 } 1159 1160 static int 1161 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) 1162 { 1163 struct wi_softc *sc = ifp->if_softc; 1164 struct ieee80211com *ic = ifp->if_l2com; 1165 struct ifreq *ifr = (struct ifreq *) data; 1166 int error = 0, startall = 0; 1167 1168 switch (cmd) { 1169 case SIOCSIFFLAGS: 1170 /* 1171 * Can't do promisc and hostap at the same time. If all that's 1172 * changing is the promisc flag, try to short-circuit a call to 1173 * wi_init() by just setting PROMISC in the hardware. 1174 */ 1175 if (ifp->if_flags & IFF_UP) { 1176 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1177 ifp->if_flags & IFF_RUNNING) { 1178 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { 1179 wi_write_val(sc, WI_RID_PROMISC, 1180 (ifp->if_flags & IFF_PROMISC) != 0); 1181 } else { 1182 wi_init_locked(sc); 1183 startall = 1; 1184 } 1185 } else { 1186 wi_init_locked(sc); 1187 startall = 1; 1188 } 1189 } else { 1190 if (ifp->if_flags & IFF_RUNNING) 1191 wi_stop_locked(sc, 1); 1192 sc->wi_gone = 0; 1193 } 1194 sc->sc_if_flags = ifp->if_flags; 1195 if (startall) 1196 ieee80211_start_all(ic); 1197 break; 1198 case SIOCGIFMEDIA: 1199 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1200 break; 1201 case SIOCGIFADDR: 1202 error = ether_ioctl(ifp, cmd, data); 1203 break; 1204 default: 1205 error = EINVAL; 1206 break; 1207 } 1208 return error; 1209 } 1210 1211 static void 1212 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1213 { 1214 struct ieee80211vap *vap = ifp->if_softc; 1215 struct ieee80211com *ic = vap->iv_ic; 1216 struct wi_softc *sc = ic->ic_ifp->if_softc; 1217 u_int16_t val; 1218 int rate, len; 1219 1220 len = sizeof(val); 1221 if (sc->sc_enabled && 1222 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && 1223 len == sizeof(val)) { 1224 /* convert to 802.11 rate */ 1225 val = le16toh(val); 1226 rate = val * 2; 1227 if (sc->sc_firmware_type == WI_LUCENT) { 1228 if (rate == 10) 1229 rate = 11; /* 5.5Mbps */ 1230 } else { 1231 if (rate == 4*2) 1232 rate = 11; /* 5.5Mbps */ 1233 else if (rate == 8*2) 1234 rate = 22; /* 11Mbps */ 1235 } 1236 vap->iv_bss->ni_txrate = rate; 1237 } 1238 ieee80211_media_status(ifp, imr); 1239 } 1240 1241 static void 1242 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1243 { 1244 struct ifnet *ifp = sc->sc_ifp; 1245 struct ieee80211com *ic = ifp->if_l2com; 1246 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1247 struct ieee80211_node *ni = vap->iv_bss; 1248 char ethstr[ETHER_ADDRSTRLEN + 1]; 1249 1250 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1251 return; 1252 1253 DPRINTF(("wi_sync_bssid: bssid %s -> ", kether_ntoa(ni->ni_bssid, ethstr))); 1254 DPRINTF(("%s ?\n", kether_ntoa(new_bssid, ethstr))); 1255 1256 /* In promiscuous mode, the BSSID field is not a reliable 1257 * indicator of the firmware's BSSID. Damp spurious 1258 * change-of-BSSID indications. 1259 */ 1260 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1261 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1262 WI_MAX_FALSE_SYNS)) 1263 return; 1264 1265 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1266 #if 0 1267 /* 1268 * XXX hack; we should create a new node with the new bssid 1269 * and replace the existing ic_bss with it but since we don't 1270 * process management frames to collect state we cheat by 1271 * reusing the existing node as we know wi_newstate will be 1272 * called and it will overwrite the node state. 1273 */ 1274 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1275 #endif 1276 } 1277 1278 static __noinline void 1279 wi_rx_intr(struct wi_softc *sc) 1280 { 1281 struct ifnet *ifp = sc->sc_ifp; 1282 struct ieee80211com *ic = ifp->if_l2com; 1283 struct wi_frame frmhdr; 1284 struct mbuf *m; 1285 struct ieee80211_frame *wh; 1286 struct ieee80211_node *ni; 1287 int fid, len, off; 1288 u_int8_t dir; 1289 u_int16_t status; 1290 int8_t rssi, nf; 1291 1292 fid = CSR_READ_2(sc, WI_RX_FID); 1293 1294 /* First read in the frame header */ 1295 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1296 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1297 IFNET_STAT_INC(ifp, ierrors, 1); 1298 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); 1299 return; 1300 } 1301 1302 /* 1303 * Drop undecryptable or packets with receive errors here 1304 */ 1305 status = le16toh(frmhdr.wi_status); 1306 if (status & WI_STAT_ERRSTAT) { 1307 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1308 IFNET_STAT_INC(ifp, ierrors, 1); 1309 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1310 return; 1311 } 1312 1313 len = le16toh(frmhdr.wi_dat_len); 1314 off = ALIGN(sizeof(struct ieee80211_frame)); 1315 1316 /* 1317 * Sometimes the PRISM2.x returns bogusly large frames. Except 1318 * in monitor mode, just throw them away. 1319 */ 1320 if (off + len > MCLBYTES) { 1321 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1322 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1323 IFNET_STAT_INC(ifp, ierrors, 1); 1324 DPRINTF(("wi_rx_intr: oversized packet\n")); 1325 return; 1326 } else 1327 len = 0; 1328 } 1329 1330 if (off + len > MHLEN) 1331 m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); 1332 else 1333 m = m_gethdr(MB_DONTWAIT, MT_DATA); 1334 if (m == NULL) { 1335 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1336 IFNET_STAT_INC(ifp, ierrors, 1); 1337 DPRINTF(("wi_rx_intr: MGET failed\n")); 1338 return; 1339 } 1340 m->m_data += off - sizeof(struct ieee80211_frame); 1341 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1342 wi_read_bap(sc, fid, sizeof(frmhdr), 1343 m->m_data + sizeof(struct ieee80211_frame), len); 1344 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1345 m->m_pkthdr.rcvif = ifp; 1346 1347 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1348 1349 rssi = frmhdr.wi_rx_signal; 1350 nf = frmhdr.wi_rx_silence; 1351 if (ieee80211_radiotap_active(ic)) { 1352 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; 1353 uint32_t rstamp; 1354 1355 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1356 le16toh(frmhdr.wi_rx_tstamp1); 1357 tap->wr_tsf = htole64((uint64_t)rstamp); 1358 /* XXX replace divide by table */ 1359 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1360 tap->wr_flags = 0; 1361 if (frmhdr.wi_status & WI_STAT_PCF) 1362 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1363 if (m->m_flags & M_WEP) 1364 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; 1365 tap->wr_antsignal = rssi; 1366 tap->wr_antnoise = nf; 1367 } 1368 1369 /* synchronize driver's BSSID with firmware's BSSID */ 1370 wh = mtod(m, struct ieee80211_frame *); 1371 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1372 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1373 wi_sync_bssid(sc, wh->i_addr3); 1374 1375 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1376 if (ni != NULL) { 1377 (void) ieee80211_input(ni, m, rssi, nf); 1378 ieee80211_free_node(ni); 1379 } else 1380 (void) ieee80211_input_all(ic, m, rssi, nf); 1381 1382 } 1383 1384 static __noinline void 1385 wi_tx_ex_intr(struct wi_softc *sc) 1386 { 1387 struct ifnet *ifp = sc->sc_ifp; 1388 struct wi_frame frmhdr; 1389 int fid; 1390 char ethstr[ETHER_ADDRSTRLEN + 1]; 1391 1392 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1393 /* Read in the frame header */ 1394 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { 1395 u_int16_t status = le16toh(frmhdr.wi_status); 1396 /* 1397 * Spontaneous station disconnects appear as xmit 1398 * errors. Don't announce them and/or count them 1399 * as an output error. 1400 */ 1401 if ((status & WI_TXSTAT_DISCONNECT) == 0) { 1402 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1403 if_printf(ifp, "tx failed"); 1404 if (status & WI_TXSTAT_RET_ERR) 1405 kprintf(", retry limit exceeded"); 1406 if (status & WI_TXSTAT_AGED_ERR) 1407 kprintf(", max transmit lifetime exceeded"); 1408 if (status & WI_TXSTAT_DISCONNECT) 1409 kprintf(", port disconnected"); 1410 if (status & WI_TXSTAT_FORM_ERR) 1411 kprintf(", invalid format (data len %u src %s)", 1412 le16toh(frmhdr.wi_dat_len), 1413 kether_ntoa(frmhdr.wi_ehdr.ether_shost, ethstr)); 1414 if (status & ~0xf) 1415 kprintf(", status=0x%x", status); 1416 kprintf("\n"); 1417 } 1418 IFNET_STAT_INC(ifp, oerrors, 1); 1419 } else { 1420 DPRINTF(("port disconnected\n")); 1421 IFNET_STAT_INC(ifp, collisions, 1); /* XXX */ 1422 } 1423 } else 1424 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); 1425 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); 1426 } 1427 1428 static __noinline void 1429 wi_tx_intr(struct wi_softc *sc) 1430 { 1431 struct ifnet *ifp = sc->sc_ifp; 1432 int fid, cur; 1433 1434 if (sc->wi_gone) 1435 return; 1436 1437 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1438 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1439 1440 cur = sc->sc_txcur; 1441 if (sc->sc_txd[cur].d_fid != fid) { 1442 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", 1443 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); 1444 return; 1445 } 1446 sc->sc_tx_timer = 0; 1447 sc->sc_txd[cur].d_len = 0; 1448 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; 1449 if (sc->sc_txd[cur].d_len == 0) 1450 ifq_clr_oactive(&ifp->if_snd); 1451 else { 1452 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 1453 0, 0)) { 1454 if_printf(ifp, "xmit failed\n"); 1455 sc->sc_txd[cur].d_len = 0; 1456 } else { 1457 sc->sc_tx_timer = 5; 1458 } 1459 } 1460 } 1461 1462 static __noinline void 1463 wi_info_intr(struct wi_softc *sc) 1464 { 1465 struct ifnet *ifp = sc->sc_ifp; 1466 struct ieee80211com *ic = ifp->if_l2com; 1467 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1468 int i, fid, len, off; 1469 u_int16_t ltbuf[2]; 1470 u_int16_t stat; 1471 u_int32_t *ptr; 1472 1473 fid = CSR_READ_2(sc, WI_INFO_FID); 1474 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1475 1476 switch (le16toh(ltbuf[1])) { 1477 case WI_INFO_LINK_STAT: 1478 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1479 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1480 switch (le16toh(stat)) { 1481 case WI_INFO_LINK_STAT_CONNECTED: 1482 if (vap->iv_state == IEEE80211_S_RUN && 1483 vap->iv_opmode != IEEE80211_M_IBSS) 1484 break; 1485 /* fall thru... */ 1486 case WI_INFO_LINK_STAT_AP_CHG: 1487 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ 1488 ieee80211_new_state(vap, IEEE80211_S_RUN, 0); 1489 break; 1490 case WI_INFO_LINK_STAT_AP_INR: 1491 break; 1492 case WI_INFO_LINK_STAT_DISCONNECTED: 1493 /* we dropped off the net; e.g. due to deauth/disassoc */ 1494 vap->iv_bss->ni_associd = 0; 1495 vap->iv_stats.is_rx_deauth++; 1496 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); 1497 break; 1498 case WI_INFO_LINK_STAT_AP_OOR: 1499 /* XXX does this need to be per-vap? */ 1500 ieee80211_beacon_miss(ic); 1501 break; 1502 case WI_INFO_LINK_STAT_ASSOC_FAILED: 1503 if (vap->iv_opmode == IEEE80211_M_STA) 1504 ieee80211_new_state(vap, IEEE80211_S_SCAN, 1505 IEEE80211_SCAN_FAIL_TIMEOUT); 1506 break; 1507 } 1508 break; 1509 case WI_INFO_COUNTERS: 1510 /* some card versions have a larger stats structure */ 1511 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1512 ptr = (u_int32_t *)&sc->sc_stats; 1513 off = sizeof(ltbuf); 1514 for (i = 0; i < len; i++, off += 2, ptr++) { 1515 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1516 #ifdef WI_HERMES_STATS_WAR 1517 if (stat & 0xf000) 1518 stat = ~stat; 1519 #endif 1520 *ptr += stat; 1521 } 1522 IFNET_STAT_SET(ifp, collisions, 1523 sc->sc_stats.wi_tx_single_retries + 1524 sc->sc_stats.wi_tx_multi_retries + 1525 sc->sc_stats.wi_tx_retry_limit); 1526 break; 1527 default: 1528 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1529 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1530 break; 1531 } 1532 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); 1533 } 1534 1535 static int 1536 wi_write_multi(struct wi_softc *sc) 1537 { 1538 struct ifnet *ifp = sc->sc_ifp; 1539 int n; 1540 struct ifmultiaddr *ifma; 1541 struct wi_mcast mlist; 1542 1543 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1544 allmulti: 1545 memset(&mlist, 0, sizeof(mlist)); 1546 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1547 sizeof(mlist)); 1548 } 1549 1550 n = 0; 1551 #ifdef __FreeBSD__ 1552 if_maddr_rlock(ifp); 1553 #endif 1554 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1555 if (ifma->ifma_addr->sa_family != AF_LINK) 1556 continue; 1557 if (n >= 16) 1558 goto allmulti; 1559 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], 1560 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); 1561 n++; 1562 } 1563 #ifdef __FreeBSD__ 1564 if_maddr_runlock(ifp); 1565 #endif 1566 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1567 IEEE80211_ADDR_LEN * n); 1568 } 1569 1570 static void 1571 wi_update_mcast(struct ifnet *ifp) 1572 { 1573 wi_write_multi(ifp->if_softc); 1574 } 1575 1576 static void 1577 wi_update_promisc(struct ifnet *ifp) 1578 { 1579 struct wi_softc *sc = ifp->if_softc; 1580 struct ieee80211com *ic = ifp->if_l2com; 1581 1582 /* XXX handle WEP special case handling? */ 1583 wi_write_val(sc, WI_RID_PROMISC, 1584 (ic->ic_opmode == IEEE80211_M_MONITOR || 1585 (ifp->if_flags & IFF_PROMISC))); 1586 } 1587 1588 static void 1589 wi_read_nicid(struct wi_softc *sc) 1590 { 1591 struct wi_card_ident *id; 1592 char *p; 1593 int len; 1594 u_int16_t ver[4]; 1595 1596 /* getting chip identity */ 1597 memset(ver, 0, sizeof(ver)); 1598 len = sizeof(ver); 1599 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1600 1601 sc->sc_firmware_type = WI_NOTYPE; 1602 sc->sc_nic_id = le16toh(ver[0]); 1603 for (id = wi_card_ident; id->card_name != NULL; id++) { 1604 if (sc->sc_nic_id == id->card_id) { 1605 sc->sc_nic_name = id->card_name; 1606 sc->sc_firmware_type = id->firm_type; 1607 break; 1608 } 1609 } 1610 if (sc->sc_firmware_type == WI_NOTYPE) { 1611 if (sc->sc_nic_id & 0x8000) { 1612 sc->sc_firmware_type = WI_INTERSIL; 1613 sc->sc_nic_name = "Unknown Prism chip"; 1614 } else { 1615 sc->sc_firmware_type = WI_LUCENT; 1616 sc->sc_nic_name = "Unknown Lucent chip"; 1617 } 1618 } 1619 if (bootverbose) 1620 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); 1621 1622 /* get primary firmware version (Only Prism chips) */ 1623 if (sc->sc_firmware_type != WI_LUCENT) { 1624 memset(ver, 0, sizeof(ver)); 1625 len = sizeof(ver); 1626 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 1627 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 1628 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1629 } 1630 1631 /* get station firmware version */ 1632 memset(ver, 0, sizeof(ver)); 1633 len = sizeof(ver); 1634 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 1635 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 1636 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1637 if (sc->sc_firmware_type == WI_INTERSIL && 1638 (sc->sc_sta_firmware_ver == 10102 || 1639 sc->sc_sta_firmware_ver == 20102)) { 1640 char ident[12]; 1641 memset(ident, 0, sizeof(ident)); 1642 len = sizeof(ident); 1643 /* value should be the format like "V2.00-11" */ 1644 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 1645 *(p = (char *)ident) >= 'A' && 1646 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 1647 sc->sc_firmware_type = WI_SYMBOL; 1648 sc->sc_sta_firmware_ver = (p[1] - '') * 10000 + 1649 (p[3] - '') * 1000 + (p[4] - '') * 100 + 1650 (p[6] - '') * 10 + (p[7] - ''); 1651 } 1652 } 1653 if (bootverbose) { 1654 device_printf(sc->sc_dev, "%s Firmware: ", 1655 wi_firmware_names[sc->sc_firmware_type]); 1656 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 1657 kprintf("Primary (%u.%u.%u), ", 1658 sc->sc_pri_firmware_ver / 10000, 1659 (sc->sc_pri_firmware_ver % 10000) / 100, 1660 sc->sc_pri_firmware_ver % 100); 1661 kprintf("Station (%u.%u.%u)\n", 1662 sc->sc_sta_firmware_ver / 10000, 1663 (sc->sc_sta_firmware_ver % 10000) / 100, 1664 sc->sc_sta_firmware_ver % 100); 1665 } 1666 } 1667 1668 static int 1669 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 1670 { 1671 struct wi_ssid ssid; 1672 1673 if (buflen > IEEE80211_NWID_LEN) 1674 return ENOBUFS; 1675 memset(&ssid, 0, sizeof(ssid)); 1676 ssid.wi_len = htole16(buflen); 1677 memcpy(ssid.wi_ssid, buf, buflen); 1678 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 1679 } 1680 1681 static int 1682 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) 1683 { 1684 static const uint16_t lucent_rates[12] = { 1685 [ 0] = 3, /* auto */ 1686 [ 1] = 1, /* 1Mb/s */ 1687 [ 2] = 2, /* 2Mb/s */ 1688 [ 5] = 4, /* 5.5Mb/s */ 1689 [11] = 5 /* 11Mb/s */ 1690 }; 1691 static const uint16_t intersil_rates[12] = { 1692 [ 0] = 0xf, /* auto */ 1693 [ 1] = 0, /* 1Mb/s */ 1694 [ 2] = 1, /* 2Mb/s */ 1695 [ 5] = 2, /* 5.5Mb/s */ 1696 [11] = 3, /* 11Mb/s */ 1697 }; 1698 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? 1699 lucent_rates : intersil_rates; 1700 struct ieee80211com *ic = vap->iv_ic; 1701 const struct ieee80211_txparam *tp; 1702 1703 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 1704 return wi_write_val(sc, WI_RID_TX_RATE, 1705 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? 1706 rates[0] : rates[tp->ucastrate / 2])); 1707 } 1708 1709 static int 1710 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) 1711 { 1712 int error = 0; 1713 int i, keylen; 1714 u_int16_t val; 1715 struct wi_key wkey[IEEE80211_WEP_NKID]; 1716 1717 switch (sc->sc_firmware_type) { 1718 case WI_LUCENT: 1719 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 1720 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 1721 if (error) 1722 break; 1723 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) 1724 break; 1725 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); 1726 if (error) 1727 break; 1728 memset(wkey, 0, sizeof(wkey)); 1729 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1730 keylen = vap->iv_nw_keys[i].wk_keylen; 1731 wkey[i].wi_keylen = htole16(keylen); 1732 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, 1733 keylen); 1734 } 1735 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 1736 wkey, sizeof(wkey)); 1737 sc->sc_encryption = 0; 1738 break; 1739 1740 case WI_INTERSIL: 1741 val = HOST_ENCRYPT | HOST_DECRYPT; 1742 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 1743 /* 1744 * ONLY HWB3163 EVAL-CARD Firmware version 1745 * less than 0.8 variant2 1746 * 1747 * If promiscuous mode disable, Prism2 chip 1748 * does not work with WEP . 1749 * It is under investigation for details. 1750 * (ichiro@netbsd.org) 1751 */ 1752 if (sc->sc_sta_firmware_ver < 802 ) { 1753 /* firm ver < 0.8 variant 2 */ 1754 wi_write_val(sc, WI_RID_PROMISC, 1); 1755 } 1756 wi_write_val(sc, WI_RID_CNFAUTHMODE, 1757 vap->iv_bss->ni_authmode); 1758 val |= PRIVACY_INVOKED; 1759 } else { 1760 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); 1761 } 1762 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 1763 if (error) 1764 break; 1765 sc->sc_encryption = val; 1766 if ((val & PRIVACY_INVOKED) == 0) 1767 break; 1768 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); 1769 break; 1770 } 1771 return error; 1772 } 1773 1774 static int 1775 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 1776 { 1777 int i, s = 0; 1778 1779 if (sc->wi_gone) 1780 return (ENODEV); 1781 1782 /* wait for the busy bit to clear */ 1783 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ 1784 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 1785 break; 1786 DELAY(1*1000); /* 1ms */ 1787 } 1788 if (i == 0) { 1789 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", 1790 __func__, cmd); 1791 sc->wi_gone = 1; 1792 return(ETIMEDOUT); 1793 } 1794 1795 CSR_WRITE_2(sc, WI_PARAM0, val0); 1796 CSR_WRITE_2(sc, WI_PARAM1, val1); 1797 CSR_WRITE_2(sc, WI_PARAM2, val2); 1798 CSR_WRITE_2(sc, WI_COMMAND, cmd); 1799 1800 if (cmd == WI_CMD_INI) { 1801 /* XXX: should sleep here. */ 1802 DELAY(100*1000); /* 100ms delay for init */ 1803 } 1804 for (i = 0; i < WI_TIMEOUT; i++) { 1805 /* 1806 * Wait for 'command complete' bit to be 1807 * set in the event status register. 1808 */ 1809 s = CSR_READ_2(sc, WI_EVENT_STAT); 1810 if (s & WI_EV_CMD) { 1811 /* Ack the event and read result code. */ 1812 s = CSR_READ_2(sc, WI_STATUS); 1813 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1814 if (s & WI_STAT_CMD_RESULT) { 1815 return(EIO); 1816 } 1817 break; 1818 } 1819 DELAY(WI_DELAY); 1820 } 1821 1822 if (i == WI_TIMEOUT) { 1823 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " 1824 "event status 0x%04x\n", __func__, cmd, s); 1825 if (s == 0xffff) 1826 sc->wi_gone = 1; 1827 return(ETIMEDOUT); 1828 } 1829 return (0); 1830 } 1831 1832 static int 1833 wi_seek_bap(struct wi_softc *sc, int id, int off) 1834 { 1835 int i, status; 1836 1837 CSR_WRITE_2(sc, WI_SEL0, id); 1838 CSR_WRITE_2(sc, WI_OFF0, off); 1839 1840 for (i = 0; ; i++) { 1841 status = CSR_READ_2(sc, WI_OFF0); 1842 if ((status & WI_OFF_BUSY) == 0) 1843 break; 1844 if (i == WI_TIMEOUT) { 1845 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", 1846 __func__, id, off); 1847 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1848 if (status == 0xffff) 1849 sc->wi_gone = 1; 1850 return ETIMEDOUT; 1851 } 1852 DELAY(1); 1853 } 1854 if (status & WI_OFF_ERR) { 1855 device_printf(sc->sc_dev, "%s: error, id %x off %x\n", 1856 __func__, id, off); 1857 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1858 return EIO; 1859 } 1860 sc->sc_bap_id = id; 1861 sc->sc_bap_off = off; 1862 return 0; 1863 } 1864 1865 static int 1866 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1867 { 1868 u_int16_t *ptr; 1869 int i, error, cnt; 1870 1871 if (buflen == 0) 1872 return 0; 1873 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1874 if ((error = wi_seek_bap(sc, id, off)) != 0) 1875 return error; 1876 } 1877 cnt = (buflen + 1) / 2; 1878 ptr = (u_int16_t *)buf; 1879 for (i = 0; i < cnt; i++) 1880 *ptr++ = CSR_READ_2(sc, WI_DATA0); 1881 sc->sc_bap_off += cnt * 2; 1882 return 0; 1883 } 1884 1885 static int 1886 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1887 { 1888 u_int16_t *ptr; 1889 int i, error, cnt; 1890 1891 if (buflen == 0) 1892 return 0; 1893 1894 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1895 if ((error = wi_seek_bap(sc, id, off)) != 0) 1896 return error; 1897 } 1898 cnt = (buflen + 1) / 2; 1899 ptr = (u_int16_t *)buf; 1900 for (i = 0; i < cnt; i++) 1901 CSR_WRITE_2(sc, WI_DATA0, ptr[i]); 1902 sc->sc_bap_off += cnt * 2; 1903 1904 return 0; 1905 } 1906 1907 static int 1908 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 1909 { 1910 int error, len; 1911 struct mbuf *m; 1912 1913 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 1914 if (m->m_len == 0) 1915 continue; 1916 1917 len = min(m->m_len, totlen); 1918 1919 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 1920 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 1921 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 1922 totlen); 1923 } 1924 1925 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 1926 return error; 1927 1928 off += m->m_len; 1929 totlen -= len; 1930 } 1931 return 0; 1932 } 1933 1934 static int 1935 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 1936 { 1937 int i; 1938 1939 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 1940 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", 1941 __func__, len); 1942 return ENOMEM; 1943 } 1944 1945 for (i = 0; i < WI_TIMEOUT; i++) { 1946 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 1947 break; 1948 DELAY(1); 1949 } 1950 if (i == WI_TIMEOUT) { 1951 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); 1952 return ETIMEDOUT; 1953 } 1954 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 1955 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1956 return 0; 1957 } 1958 1959 static int 1960 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 1961 { 1962 int error, len; 1963 u_int16_t ltbuf[2]; 1964 1965 /* Tell the NIC to enter record read mode. */ 1966 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 1967 if (error) 1968 return error; 1969 1970 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 1971 if (error) 1972 return error; 1973 1974 if (le16toh(ltbuf[1]) != rid) { 1975 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 1976 rid, le16toh(ltbuf[1])); 1977 return EIO; 1978 } 1979 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 1980 if (*buflenp < len) { 1981 device_printf(sc->sc_dev, "record buffer is too small, " 1982 "rid=%x, size=%d, len=%d\n", 1983 rid, *buflenp, len); 1984 return ENOSPC; 1985 } 1986 *buflenp = len; 1987 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 1988 } 1989 1990 static int 1991 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 1992 { 1993 int error; 1994 u_int16_t ltbuf[2]; 1995 1996 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 1997 ltbuf[1] = htole16(rid); 1998 1999 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2000 if (error) { 2001 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", 2002 __func__, rid); 2003 return error; 2004 } 2005 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2006 if (error) { 2007 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", 2008 __func__, rid); 2009 return error; 2010 } 2011 2012 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2013 } 2014 2015 static int 2016 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) 2017 { 2018 /* NB: 42 bytes is probably ok to have on the stack */ 2019 char buf[sizeof(uint16_t) + 40]; 2020 2021 if (ie->ie_len > 40) 2022 return EINVAL; 2023 /* NB: firmware requires 16-bit ie length before ie data */ 2024 *(uint16_t *) buf = htole16(ie->ie_len); 2025 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); 2026 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); 2027 } 2028 2029 int 2030 wi_alloc(device_t dev, int rid) 2031 { 2032 struct wi_softc *sc = device_get_softc(dev); 2033 2034 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 2035 sc->iobase_rid = rid; 2036 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, 2037 &sc->iobase_rid, 0, ~0, (1 << 6), 2038 rman_make_alignment_flags(1 << 6) | RF_ACTIVE); 2039 if (sc->iobase == NULL) { 2040 device_printf(dev, "No I/O space?!\n"); 2041 return ENXIO; 2042 } 2043 2044 sc->wi_io_addr = rman_get_start(sc->iobase); 2045 sc->wi_btag = rman_get_bustag(sc->iobase); 2046 sc->wi_bhandle = rman_get_bushandle(sc->iobase); 2047 } else { 2048 sc->mem_rid = rid; 2049 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 2050 &sc->mem_rid, RF_ACTIVE); 2051 if (sc->mem == NULL) { 2052 device_printf(dev, "No Mem space on prism2.5?\n"); 2053 return ENXIO; 2054 } 2055 2056 sc->wi_btag = rman_get_bustag(sc->mem); 2057 sc->wi_bhandle = rman_get_bushandle(sc->mem); 2058 } 2059 2060 sc->irq_rid = 0; 2061 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 2062 RF_ACTIVE | 2063 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); 2064 if (sc->irq == NULL) { 2065 wi_free(dev); 2066 device_printf(dev, "No irq?!\n"); 2067 return ENXIO; 2068 } 2069 2070 sc->sc_dev = dev; 2071 sc->sc_unit = device_get_unit(dev); 2072 return 0; 2073 } 2074 2075 void 2076 wi_free(device_t dev) 2077 { 2078 struct wi_softc *sc = device_get_softc(dev); 2079 2080 if (sc->iobase != NULL) { 2081 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); 2082 sc->iobase = NULL; 2083 } 2084 if (sc->irq != NULL) { 2085 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 2086 sc->irq = NULL; 2087 } 2088 if (sc->mem != NULL) { 2089 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 2090 sc->mem = NULL; 2091 } 2092 }
Cache object: 73afacd18385ecaf843627832a660a06
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