Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/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 33 /* 34 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver. 35 * 36 * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu> 37 * Electrical Engineering Department 38 * Columbia University, New York City 39 */ 40 41 /* 42 * The WaveLAN/IEEE adapter is the second generation of the WaveLAN 43 * from Lucent. Unlike the older cards, the new ones are programmed 44 * entirely via a firmware-driven controller called the Hermes. 45 * Unfortunately, Lucent will not release the Hermes programming manual 46 * without an NDA (if at all). What they do release is an API library 47 * called the HCF (Hardware Control Functions) which is supposed to 48 * do the device-specific operations of a device driver for you. The 49 * publically available version of the HCF library (the 'HCF Light') is 50 * a) extremely gross, b) lacks certain features, particularly support 51 * for 802.11 frames, and c) is contaminated by the GNU Public License. 52 * 53 * This driver does not use the HCF or HCF Light at all. Instead, it 54 * programs the Hermes controller directly, using information gleaned 55 * from the HCF Light code and corresponding documentation. 56 * 57 * This driver supports the ISA, PCMCIA and PCI versions of the Lucent 58 * WaveLan cards (based on the Hermes chipset), as well as the newer 59 * Prism 2 chipsets with firmware from Intersil and Symbol. 60 */ 61 62 #include <sys/cdefs.h> 63 __FBSDID("$FreeBSD$"); 64 65 #include "opt_wlan.h" 66 67 #define WI_HERMES_STATS_WAR /* Work around stats counter bug. */ 68 69 #include <sys/param.h> 70 #include <sys/systm.h> 71 #include <sys/endian.h> 72 #include <sys/sockio.h> 73 #include <sys/mbuf.h> 74 #include <sys/priv.h> 75 #include <sys/proc.h> 76 #include <sys/kernel.h> 77 #include <sys/socket.h> 78 #include <sys/module.h> 79 #include <sys/bus.h> 80 #include <sys/random.h> 81 #include <sys/syslog.h> 82 #include <sys/sysctl.h> 83 84 #include <machine/bus.h> 85 #include <machine/resource.h> 86 #include <machine/atomic.h> 87 #include <sys/rman.h> 88 89 #include <net/if.h> 90 #include <net/if_arp.h> 91 #include <net/ethernet.h> 92 #include <net/if_dl.h> 93 #include <net/if_llc.h> 94 #include <net/if_media.h> 95 #include <net/if_types.h> 96 97 #include <net80211/ieee80211_var.h> 98 #include <net80211/ieee80211_ioctl.h> 99 #include <net80211/ieee80211_radiotap.h> 100 101 #include <netinet/in.h> 102 #include <netinet/in_systm.h> 103 #include <netinet/in_var.h> 104 #include <netinet/ip.h> 105 #include <netinet/if_ether.h> 106 107 #include <net/bpf.h> 108 109 #include <dev/wi/if_wavelan_ieee.h> 110 #include <dev/wi/if_wireg.h> 111 #include <dev/wi/if_wivar.h> 112 113 static struct ieee80211vap *wi_vap_create(struct ieee80211com *, 114 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 115 const uint8_t [IEEE80211_ADDR_LEN], 116 const uint8_t [IEEE80211_ADDR_LEN]); 117 static void wi_vap_delete(struct ieee80211vap *vap); 118 static void wi_stop_locked(struct wi_softc *sc, int disable); 119 static void wi_start_locked(struct ifnet *); 120 static void wi_start(struct ifnet *); 121 static int wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, 122 struct mbuf *m0); 123 static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *, 124 const struct ieee80211_bpf_params *); 125 static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int); 126 static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state, 127 int); 128 static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 129 int subtype, int rssi, int nf); 130 static int wi_reset(struct wi_softc *); 131 static void wi_watchdog(void *); 132 static int wi_ioctl(struct ifnet *, u_long, caddr_t); 133 static void wi_media_status(struct ifnet *, struct ifmediareq *); 134 135 static void wi_rx_intr(struct wi_softc *); 136 static void wi_tx_intr(struct wi_softc *); 137 static void wi_tx_ex_intr(struct wi_softc *); 138 139 static void wi_info_intr(struct wi_softc *); 140 141 static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *); 142 static int wi_write_wep(struct wi_softc *, struct ieee80211vap *); 143 static int wi_write_multi(struct wi_softc *); 144 static void wi_update_mcast(struct ifnet *); 145 static void wi_update_promisc(struct ifnet *); 146 static int wi_alloc_fid(struct wi_softc *, int, int *); 147 static void wi_read_nicid(struct wi_softc *); 148 static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); 149 150 static int wi_cmd(struct wi_softc *, int, int, int, int); 151 static int wi_seek_bap(struct wi_softc *, int, int); 152 static int wi_read_bap(struct wi_softc *, int, int, void *, int); 153 static int wi_write_bap(struct wi_softc *, int, int, void *, int); 154 static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); 155 static int wi_read_rid(struct wi_softc *, int, void *, int *); 156 static int wi_write_rid(struct wi_softc *, int, void *, int); 157 static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *); 158 159 static void wi_scan_start(struct ieee80211com *); 160 static void wi_scan_end(struct ieee80211com *); 161 static void wi_set_channel(struct ieee80211com *); 162 163 static __inline int 164 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) 165 { 166 167 val = htole16(val); 168 return wi_write_rid(sc, rid, &val, sizeof(val)); 169 } 170 171 static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, 172 "Wireless driver parameters"); 173 174 static struct timeval lasttxerror; /* time of last tx error msg */ 175 static int curtxeps; /* current tx error msgs/sec */ 176 static int wi_txerate = 0; /* tx error rate: max msgs/sec */ 177 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate, 178 0, "max tx error msgs/sec; 0 to disable msgs"); 179 180 #define WI_DEBUG 181 #ifdef WI_DEBUG 182 static int wi_debug = 0; 183 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug, 184 0, "control debugging printfs"); 185 #define DPRINTF(X) if (wi_debug) printf X 186 #else 187 #define DPRINTF(X) 188 #endif 189 190 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO) 191 192 struct wi_card_ident wi_card_ident[] = { 193 /* CARD_ID CARD_NAME FIRM_TYPE */ 194 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, 195 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, 196 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, 197 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, 198 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, 199 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, 200 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, 201 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, 202 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, 203 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, 204 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, 205 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, 206 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 207 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 208 { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 209 { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 210 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 211 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 212 { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 213 { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 214 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 215 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 216 { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 217 { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 218 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 219 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 220 { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 221 { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 222 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 223 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 224 { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 225 { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 226 { 0, NULL, 0 }, 227 }; 228 229 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" }; 230 231 devclass_t wi_devclass; 232 233 int 234 wi_attach(device_t dev) 235 { 236 struct wi_softc *sc = device_get_softc(dev); 237 struct ieee80211com *ic; 238 struct ifnet *ifp; 239 int i, nrates, buflen; 240 u_int16_t val; 241 u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE]; 242 struct ieee80211_rateset *rs; 243 struct sysctl_ctx_list *sctx; 244 struct sysctl_oid *soid; 245 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 246 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 247 }; 248 int error; 249 uint8_t macaddr[IEEE80211_ADDR_LEN]; 250 251 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 252 if (ifp == NULL) { 253 device_printf(dev, "can not if_alloc\n"); 254 wi_free(dev); 255 return ENOSPC; 256 } 257 ic = ifp->if_l2com; 258 259 sc->sc_firmware_type = WI_NOTYPE; 260 sc->wi_cmd_count = 500; 261 /* Reset the NIC. */ 262 if (wi_reset(sc) != 0) { 263 wi_free(dev); 264 return ENXIO; /* XXX */ 265 } 266 267 /* Read NIC identification */ 268 wi_read_nicid(sc); 269 switch (sc->sc_firmware_type) { 270 case WI_LUCENT: 271 if (sc->sc_sta_firmware_ver < 60006) 272 goto reject; 273 break; 274 case WI_INTERSIL: 275 if (sc->sc_sta_firmware_ver < 800) 276 goto reject; 277 break; 278 default: 279 reject: 280 device_printf(dev, "Sorry, this card is not supported " 281 "(type %d, firmware ver %d)\n", 282 sc->sc_firmware_type, sc->sc_sta_firmware_ver); 283 wi_free(dev); 284 return EOPNOTSUPP; 285 } 286 287 /* Export info about the device via sysctl */ 288 sctx = device_get_sysctl_ctx(dev); 289 soid = device_get_sysctl_tree(dev); 290 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 291 "firmware_type", CTLFLAG_RD, 292 wi_firmware_names[sc->sc_firmware_type], 0, 293 "Firmware type string"); 294 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version", 295 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0, 296 "Station Firmware version"); 297 if (sc->sc_firmware_type == WI_INTERSIL) 298 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 299 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0, 300 "Primary Firmware version"); 301 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id", 302 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id"); 303 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name", 304 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name"); 305 306 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 307 MTX_DEF | MTX_RECURSE); 308 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 309 310 /* 311 * Read the station address. 312 * And do it twice. I've seen PRISM-based cards that return 313 * an error when trying to read it the first time, which causes 314 * the probe to fail. 315 */ 316 buflen = IEEE80211_ADDR_LEN; 317 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 318 if (error != 0) { 319 buflen = IEEE80211_ADDR_LEN; 320 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 321 } 322 if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) { 323 if (error != 0) 324 device_printf(dev, "mac read failed %d\n", error); 325 else { 326 device_printf(dev, "mac read failed (all zeros)\n"); 327 error = ENXIO; 328 } 329 wi_free(dev); 330 return (error); 331 } 332 333 ifp->if_softc = sc; 334 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 335 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 336 ifp->if_ioctl = wi_ioctl; 337 ifp->if_start = wi_start; 338 ifp->if_init = wi_init; 339 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 340 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 341 IFQ_SET_READY(&ifp->if_snd); 342 343 ic->ic_ifp = ifp; 344 ic->ic_phytype = IEEE80211_T_DS; 345 ic->ic_opmode = IEEE80211_M_STA; 346 ic->ic_caps = IEEE80211_C_STA 347 | IEEE80211_C_PMGT 348 | IEEE80211_C_MONITOR 349 ; 350 351 /* 352 * Query the card for available channels and setup the 353 * channel table. We assume these are all 11b channels. 354 */ 355 buflen = sizeof(val); 356 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) 357 val = htole16(0x1fff); /* assume 1-11 */ 358 KASSERT(val != 0, ("wi_attach: no available channels listed!")); 359 360 val <<= 1; /* shift for base 1 indices */ 361 for (i = 1; i < 16; i++) { 362 struct ieee80211_channel *c; 363 364 if (!isset((u_int8_t*)&val, i)) 365 continue; 366 c = &ic->ic_channels[ic->ic_nchans++]; 367 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 368 c->ic_flags = IEEE80211_CHAN_B; 369 c->ic_ieee = i; 370 /* XXX txpowers? */ 371 } 372 373 /* 374 * Set flags based on firmware version. 375 */ 376 switch (sc->sc_firmware_type) { 377 case WI_LUCENT: 378 sc->sc_ntxbuf = 1; 379 ic->ic_caps |= IEEE80211_C_IBSS; 380 381 sc->sc_ibss_port = WI_PORTTYPE_BSS; 382 sc->sc_monitor_port = WI_PORTTYPE_ADHOC; 383 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; 384 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; 385 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 386 break; 387 case WI_INTERSIL: 388 sc->sc_ntxbuf = WI_NTXBUF; 389 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR 390 | WI_FLAGS_HAS_ROAMING; 391 /* 392 * Old firmware are slow, so give peace a chance. 393 */ 394 if (sc->sc_sta_firmware_ver < 10000) 395 sc->wi_cmd_count = 5000; 396 if (sc->sc_sta_firmware_ver > 10101) 397 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 398 ic->ic_caps |= IEEE80211_C_IBSS; 399 /* 400 * version 0.8.3 and newer are the only ones that are known 401 * to currently work. Earlier versions can be made to work, 402 * at least according to the Linux driver but we require 403 * monitor mode so this is irrelevant. 404 */ 405 ic->ic_caps |= IEEE80211_C_HOSTAP; 406 if (sc->sc_sta_firmware_ver >= 10603) 407 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; 408 if (sc->sc_sta_firmware_ver >= 10700) { 409 /* 410 * 1.7.0+ have the necessary support for sta mode WPA. 411 */ 412 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; 413 ic->ic_caps |= IEEE80211_C_WPA; 414 } 415 416 sc->sc_ibss_port = WI_PORTTYPE_IBSS; 417 sc->sc_monitor_port = WI_PORTTYPE_APSILENT; 418 sc->sc_min_rssi = WI_PRISM_MIN_RSSI; 419 sc->sc_max_rssi = WI_PRISM_MAX_RSSI; 420 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 421 break; 422 } 423 424 /* 425 * Find out if we support WEP on this card. 426 */ 427 buflen = sizeof(val); 428 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && 429 val != htole16(0)) 430 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; 431 432 /* Find supported rates. */ 433 buflen = sizeof(ratebuf); 434 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 435 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { 436 nrates = le16toh(*(u_int16_t *)ratebuf); 437 if (nrates > IEEE80211_RATE_MAXSIZE) 438 nrates = IEEE80211_RATE_MAXSIZE; 439 rs->rs_nrates = 0; 440 for (i = 0; i < nrates; i++) 441 if (ratebuf[2+i]) 442 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; 443 } else { 444 /* XXX fallback on error? */ 445 } 446 447 buflen = sizeof(val); 448 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 449 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { 450 sc->sc_dbm_offset = le16toh(val); 451 } 452 453 sc->sc_portnum = WI_DEFAULT_PORT; 454 455 ieee80211_ifattach(ic, macaddr); 456 ic->ic_raw_xmit = wi_raw_xmit; 457 ic->ic_scan_start = wi_scan_start; 458 ic->ic_scan_end = wi_scan_end; 459 ic->ic_set_channel = wi_set_channel; 460 461 ic->ic_vap_create = wi_vap_create; 462 ic->ic_vap_delete = wi_vap_delete; 463 ic->ic_update_mcast = wi_update_mcast; 464 ic->ic_update_promisc = wi_update_promisc; 465 466 ieee80211_radiotap_attach(ic, 467 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 468 WI_TX_RADIOTAP_PRESENT, 469 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 470 WI_RX_RADIOTAP_PRESENT); 471 472 if (bootverbose) 473 ieee80211_announce(ic); 474 475 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 476 NULL, wi_intr, sc, &sc->wi_intrhand); 477 if (error) { 478 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 479 ieee80211_ifdetach(ic); 480 if_free(sc->sc_ifp); 481 wi_free(dev); 482 return error; 483 } 484 485 return (0); 486 } 487 488 int 489 wi_detach(device_t dev) 490 { 491 struct wi_softc *sc = device_get_softc(dev); 492 struct ifnet *ifp = sc->sc_ifp; 493 struct ieee80211com *ic = ifp->if_l2com; 494 495 WI_LOCK(sc); 496 497 /* check if device was removed */ 498 sc->wi_gone |= !bus_child_present(dev); 499 500 wi_stop_locked(sc, 0); 501 WI_UNLOCK(sc); 502 ieee80211_ifdetach(ic); 503 504 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); 505 if_free(sc->sc_ifp); 506 wi_free(dev); 507 mtx_destroy(&sc->sc_mtx); 508 return (0); 509 } 510 511 static struct ieee80211vap * 512 wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 513 enum ieee80211_opmode opmode, int flags, 514 const uint8_t bssid[IEEE80211_ADDR_LEN], 515 const uint8_t mac[IEEE80211_ADDR_LEN]) 516 { 517 struct wi_softc *sc = ic->ic_ifp->if_softc; 518 struct wi_vap *wvp; 519 struct ieee80211vap *vap; 520 521 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 522 return NULL; 523 wvp = (struct wi_vap *) malloc(sizeof(struct wi_vap), 524 M_80211_VAP, M_NOWAIT | M_ZERO); 525 if (wvp == NULL) 526 return NULL; 527 528 vap = &wvp->wv_vap; 529 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 530 531 vap->iv_max_aid = WI_MAX_AID; 532 533 switch (opmode) { 534 case IEEE80211_M_STA: 535 sc->sc_porttype = WI_PORTTYPE_BSS; 536 wvp->wv_newstate = vap->iv_newstate; 537 vap->iv_newstate = wi_newstate_sta; 538 /* need to filter mgt frames to avoid confusing state machine */ 539 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 540 vap->iv_recv_mgmt = wi_recv_mgmt; 541 break; 542 case IEEE80211_M_IBSS: 543 sc->sc_porttype = sc->sc_ibss_port; 544 wvp->wv_newstate = vap->iv_newstate; 545 vap->iv_newstate = wi_newstate_sta; 546 break; 547 case IEEE80211_M_AHDEMO: 548 sc->sc_porttype = WI_PORTTYPE_ADHOC; 549 break; 550 case IEEE80211_M_HOSTAP: 551 sc->sc_porttype = WI_PORTTYPE_HOSTAP; 552 wvp->wv_newstate = vap->iv_newstate; 553 vap->iv_newstate = wi_newstate_hostap; 554 break; 555 case IEEE80211_M_MONITOR: 556 sc->sc_porttype = sc->sc_monitor_port; 557 break; 558 default: 559 break; 560 } 561 562 /* complete setup */ 563 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); 564 ic->ic_opmode = opmode; 565 return vap; 566 } 567 568 static void 569 wi_vap_delete(struct ieee80211vap *vap) 570 { 571 struct wi_vap *wvp = WI_VAP(vap); 572 573 ieee80211_vap_detach(vap); 574 free(wvp, M_80211_VAP); 575 } 576 577 int 578 wi_shutdown(device_t dev) 579 { 580 struct wi_softc *sc = device_get_softc(dev); 581 582 wi_stop(sc, 1); 583 return (0); 584 } 585 586 void 587 wi_intr(void *arg) 588 { 589 struct wi_softc *sc = arg; 590 struct ifnet *ifp = sc->sc_ifp; 591 u_int16_t status; 592 593 WI_LOCK(sc); 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 WI_UNLOCK(sc); 599 return; 600 } 601 602 /* Disable interrupts. */ 603 CSR_WRITE_2(sc, WI_INT_EN, 0); 604 605 status = CSR_READ_2(sc, WI_EVENT_STAT); 606 if (status & WI_EV_RX) 607 wi_rx_intr(sc); 608 if (status & WI_EV_ALLOC) 609 wi_tx_intr(sc); 610 if (status & WI_EV_TX_EXC) 611 wi_tx_ex_intr(sc); 612 if (status & WI_EV_INFO) 613 wi_info_intr(sc); 614 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 615 !IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 616 wi_start_locked(ifp); 617 618 /* Re-enable interrupts. */ 619 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 620 621 WI_UNLOCK(sc); 622 623 return; 624 } 625 626 static void 627 wi_enable(struct wi_softc *sc) 628 { 629 /* Enable interrupts */ 630 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 631 632 /* enable port */ 633 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 634 sc->sc_enabled = 1; 635 } 636 637 static int 638 wi_setup_locked(struct wi_softc *sc, int porttype, int mode, 639 uint8_t mac[IEEE80211_ADDR_LEN]) 640 { 641 int i; 642 643 wi_reset(sc); 644 645 wi_write_val(sc, WI_RID_PORTTYPE, porttype); 646 wi_write_val(sc, WI_RID_CREATE_IBSS, mode); 647 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); 648 /* XXX IEEE80211_BPF_NOACK wants 0 */ 649 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); 650 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 651 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ 652 653 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); 654 655 /* Allocate fids for the card */ 656 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 657 for (i = 0; i < sc->sc_ntxbuf; i++) { 658 int error = wi_alloc_fid(sc, sc->sc_buflen, 659 &sc->sc_txd[i].d_fid); 660 if (error) { 661 device_printf(sc->sc_dev, 662 "tx buffer allocation failed (error %u)\n", 663 error); 664 return error; 665 } 666 sc->sc_txd[i].d_len = 0; 667 } 668 sc->sc_txcur = sc->sc_txnext = 0; 669 670 return 0; 671 } 672 673 static void 674 wi_init_locked(struct wi_softc *sc) 675 { 676 struct ifnet *ifp = sc->sc_ifp; 677 int wasenabled; 678 679 WI_LOCK_ASSERT(sc); 680 681 wasenabled = sc->sc_enabled; 682 if (wasenabled) 683 wi_stop_locked(sc, 1); 684 685 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { 686 if_printf(ifp, "interface not running\n"); 687 wi_stop_locked(sc, 1); 688 return; 689 } 690 691 ifp->if_drv_flags |= IFF_DRV_RUNNING; 692 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 693 694 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 695 696 wi_enable(sc); /* Enable desired port */ 697 } 698 699 void 700 wi_init(void *arg) 701 { 702 struct wi_softc *sc = arg; 703 struct ifnet *ifp = sc->sc_ifp; 704 struct ieee80211com *ic = ifp->if_l2com; 705 706 WI_LOCK(sc); 707 wi_init_locked(sc); 708 WI_UNLOCK(sc); 709 710 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 711 ieee80211_start_all(ic); /* start all vap's */ 712 } 713 714 static void 715 wi_stop_locked(struct wi_softc *sc, int disable) 716 { 717 struct ifnet *ifp = sc->sc_ifp; 718 719 WI_LOCK_ASSERT(sc); 720 721 if (sc->sc_enabled && !sc->wi_gone) { 722 CSR_WRITE_2(sc, WI_INT_EN, 0); 723 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 724 if (disable) 725 sc->sc_enabled = 0; 726 } else if (sc->wi_gone && disable) /* gone --> not enabled */ 727 sc->sc_enabled = 0; 728 729 callout_stop(&sc->sc_watchdog); 730 sc->sc_tx_timer = 0; 731 sc->sc_false_syns = 0; 732 733 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING); 734 } 735 736 void 737 wi_stop(struct wi_softc *sc, int disable) 738 { 739 WI_LOCK(sc); 740 wi_stop_locked(sc, disable); 741 WI_UNLOCK(sc); 742 } 743 744 static void 745 wi_set_channel(struct ieee80211com *ic) 746 { 747 struct ifnet *ifp = ic->ic_ifp; 748 struct wi_softc *sc = ifp->if_softc; 749 750 DPRINTF(("%s: channel %d, %sscanning\n", __func__, 751 ieee80211_chan2ieee(ic, ic->ic_curchan), 752 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); 753 754 WI_LOCK(sc); 755 wi_write_val(sc, WI_RID_OWN_CHNL, 756 ieee80211_chan2ieee(ic, ic->ic_curchan)); 757 WI_UNLOCK(sc); 758 } 759 760 static void 761 wi_scan_start(struct ieee80211com *ic) 762 { 763 struct ifnet *ifp = ic->ic_ifp; 764 struct wi_softc *sc = ifp->if_softc; 765 struct ieee80211_scan_state *ss = ic->ic_scan; 766 767 DPRINTF(("%s\n", __func__)); 768 769 WI_LOCK(sc); 770 /* 771 * Switch device to monitor mode. 772 */ 773 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); 774 if (sc->sc_firmware_type == WI_INTERSIL) { 775 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 776 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 777 } 778 /* force full dwell time to compensate for firmware overhead */ 779 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); 780 WI_UNLOCK(sc); 781 782 } 783 784 static void 785 wi_scan_end(struct ieee80211com *ic) 786 { 787 struct ifnet *ifp = ic->ic_ifp; 788 struct wi_softc *sc = ifp->if_softc; 789 790 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); 791 792 WI_LOCK(sc); 793 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); 794 if (sc->sc_firmware_type == WI_INTERSIL) { 795 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 796 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 797 } 798 WI_UNLOCK(sc); 799 } 800 801 static void 802 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 803 int subtype, int rssi, int nf) 804 { 805 struct ieee80211vap *vap = ni->ni_vap; 806 807 switch (subtype) { 808 case IEEE80211_FC0_SUBTYPE_AUTH: 809 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 810 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 811 /* NB: filter frames that trigger state changes */ 812 return; 813 } 814 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); 815 } 816 817 static int 818 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 819 { 820 struct ieee80211com *ic = vap->iv_ic; 821 struct ifnet *ifp = ic->ic_ifp; 822 struct ieee80211_node *bss; 823 struct wi_softc *sc = ifp->if_softc; 824 825 DPRINTF(("%s: %s -> %s\n", __func__, 826 ieee80211_state_name[vap->iv_state], 827 ieee80211_state_name[nstate])); 828 829 if (nstate == IEEE80211_S_AUTH) { 830 WI_LOCK(sc); 831 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); 832 833 if (vap->iv_flags & IEEE80211_F_PMGTON) { 834 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 835 wi_write_val(sc, WI_RID_PM_ENABLED, 1); 836 } 837 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 838 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 839 wi_write_val(sc, WI_RID_FRAG_THRESH, 840 vap->iv_fragthreshold); 841 wi_write_txrate(sc, vap); 842 843 bss = vap->iv_bss; 844 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); 845 wi_write_val(sc, WI_RID_OWN_CHNL, 846 ieee80211_chan2ieee(ic, bss->ni_chan)); 847 848 /* Configure WEP. */ 849 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 850 wi_write_wep(sc, vap); 851 else 852 sc->sc_encryption = 0; 853 854 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 855 (vap->iv_flags & IEEE80211_F_WPA)) { 856 wi_write_val(sc, WI_RID_WPA_HANDLING, 1); 857 if (vap->iv_appie_wpa != NULL) 858 wi_write_appie(sc, WI_RID_WPA_DATA, 859 vap->iv_appie_wpa); 860 } 861 862 wi_enable(sc); /* enable port */ 863 864 /* Lucent firmware does not support the JOIN RID. */ 865 if (sc->sc_firmware_type == WI_INTERSIL) { 866 struct wi_joinreq join; 867 868 memset(&join, 0, sizeof(join)); 869 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); 870 join.wi_chan = htole16( 871 ieee80211_chan2ieee(ic, bss->ni_chan)); 872 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 873 } 874 WI_UNLOCK(sc); 875 876 /* 877 * NB: don't go through 802.11 layer, it'll send auth frame; 878 * instead we drive the state machine from the link status 879 * notification we get on association. 880 */ 881 vap->iv_state = nstate; 882 return (0); 883 } 884 return WI_VAP(vap)->wv_newstate(vap, nstate, arg); 885 } 886 887 static int 888 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 889 { 890 struct ieee80211com *ic = vap->iv_ic; 891 struct ifnet *ifp = ic->ic_ifp; 892 struct ieee80211_node *bss; 893 struct wi_softc *sc = ifp->if_softc; 894 int error; 895 896 DPRINTF(("%s: %s -> %s\n", __func__, 897 ieee80211_state_name[vap->iv_state], 898 ieee80211_state_name[nstate])); 899 900 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); 901 if (error == 0 && nstate == IEEE80211_S_RUN) { 902 WI_LOCK(sc); 903 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); 904 905 bss = vap->iv_bss; 906 wi_write_ssid(sc, WI_RID_OWN_SSID, 907 bss->ni_essid, bss->ni_esslen); 908 wi_write_val(sc, WI_RID_OWN_CHNL, 909 ieee80211_chan2ieee(ic, bss->ni_chan)); 910 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); 911 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); 912 wi_write_txrate(sc, vap); 913 914 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); 915 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); 916 917 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 918 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 919 wi_write_val(sc, WI_RID_FRAG_THRESH, 920 vap->iv_fragthreshold); 921 922 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && 923 (vap->iv_flags & IEEE80211_F_HIDESSID)) { 924 /* 925 * bit 0 means hide SSID in beacons, 926 * bit 1 means don't respond to bcast probe req 927 */ 928 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); 929 } 930 931 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 932 (vap->iv_flags & IEEE80211_F_WPA) && 933 vap->iv_appie_wpa != NULL) 934 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); 935 936 wi_write_val(sc, WI_RID_PROMISC, 0); 937 938 /* Configure WEP. */ 939 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 940 wi_write_wep(sc, vap); 941 else 942 sc->sc_encryption = 0; 943 944 wi_enable(sc); /* enable port */ 945 WI_UNLOCK(sc); 946 } 947 return error; 948 } 949 950 static void 951 wi_start_locked(struct ifnet *ifp) 952 { 953 struct wi_softc *sc = ifp->if_softc; 954 struct ieee80211_node *ni; 955 struct ieee80211_frame *wh; 956 struct mbuf *m0; 957 struct ieee80211_key *k; 958 struct wi_frame frmhdr; 959 const struct llc *llc; 960 int cur; 961 962 WI_LOCK_ASSERT(sc); 963 964 if (sc->wi_gone) 965 return; 966 967 memset(&frmhdr, 0, sizeof(frmhdr)); 968 cur = sc->sc_txnext; 969 for (;;) { 970 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); 971 if (m0 == NULL) 972 break; 973 if (sc->sc_txd[cur].d_len != 0) { 974 IFQ_DRV_PREPEND(&ifp->if_snd, m0); 975 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 976 break; 977 } 978 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; 979 980 /* reconstruct 802.3 header */ 981 wh = mtod(m0, struct ieee80211_frame *); 982 switch (wh->i_fc[1]) { 983 case IEEE80211_FC1_DIR_TODS: 984 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 985 wh->i_addr2); 986 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 987 wh->i_addr3); 988 break; 989 case IEEE80211_FC1_DIR_NODS: 990 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 991 wh->i_addr2); 992 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 993 wh->i_addr1); 994 break; 995 case IEEE80211_FC1_DIR_FROMDS: 996 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 997 wh->i_addr3); 998 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 999 wh->i_addr1); 1000 break; 1001 } 1002 llc = (const struct llc *)( 1003 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); 1004 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; 1005 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1006 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1007 k = ieee80211_crypto_encap(ni, m0); 1008 if (k == NULL) { 1009 ieee80211_free_node(ni); 1010 m_freem(m0); 1011 continue; 1012 } 1013 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1014 } 1015 1016 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 1017 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1018 ieee80211_radiotap_tx(ni->ni_vap, m0); 1019 } 1020 1021 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1022 (caddr_t)&frmhdr.wi_whdr); 1023 m_adj(m0, sizeof(struct ieee80211_frame)); 1024 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1025 ieee80211_free_node(ni); 1026 if (wi_start_tx(ifp, &frmhdr, m0)) 1027 continue; 1028 1029 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1030 ifp->if_opackets++; 1031 } 1032 } 1033 1034 static void 1035 wi_start(struct ifnet *ifp) 1036 { 1037 struct wi_softc *sc = ifp->if_softc; 1038 1039 WI_LOCK(sc); 1040 wi_start_locked(ifp); 1041 WI_UNLOCK(sc); 1042 } 1043 1044 static int 1045 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) 1046 { 1047 struct wi_softc *sc = ifp->if_softc; 1048 int cur = sc->sc_txnext; 1049 int fid, off, error; 1050 1051 fid = sc->sc_txd[cur].d_fid; 1052 off = sizeof(*frmhdr); 1053 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 1054 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; 1055 m_freem(m0); 1056 if (error) { 1057 ifp->if_oerrors++; 1058 return -1; 1059 } 1060 sc->sc_txd[cur].d_len = off; 1061 if (sc->sc_txcur == cur) { 1062 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1063 if_printf(ifp, "xmit failed\n"); 1064 sc->sc_txd[cur].d_len = 0; 1065 return -1; 1066 } 1067 sc->sc_tx_timer = 5; 1068 } 1069 return 0; 1070 } 1071 1072 static int 1073 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, 1074 const struct ieee80211_bpf_params *params) 1075 { 1076 struct ieee80211com *ic = ni->ni_ic; 1077 struct ifnet *ifp = ic->ic_ifp; 1078 struct ieee80211vap *vap = ni->ni_vap; 1079 struct wi_softc *sc = ifp->if_softc; 1080 struct ieee80211_key *k; 1081 struct ieee80211_frame *wh; 1082 struct wi_frame frmhdr; 1083 int cur; 1084 int rc = 0; 1085 1086 WI_LOCK(sc); 1087 1088 if (sc->wi_gone) { 1089 rc = ENETDOWN; 1090 goto out; 1091 } 1092 memset(&frmhdr, 0, sizeof(frmhdr)); 1093 cur = sc->sc_txnext; 1094 if (sc->sc_txd[cur].d_len != 0) { 1095 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1096 rc = ENOBUFS; 1097 goto out; 1098 } 1099 m0->m_pkthdr.rcvif = NULL; 1100 1101 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1102 (caddr_t)&frmhdr.wi_ehdr); 1103 frmhdr.wi_ehdr.ether_type = 0; 1104 wh = mtod(m0, struct ieee80211_frame *); 1105 1106 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1107 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) 1108 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1109 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1110 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { 1111 k = ieee80211_crypto_encap(ni, m0); 1112 if (k == NULL) { 1113 rc = ENOMEM; 1114 goto out; 1115 } 1116 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1117 } 1118 if (ieee80211_radiotap_active_vap(vap)) { 1119 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1120 ieee80211_radiotap_tx(vap, m0); 1121 } 1122 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1123 (caddr_t)&frmhdr.wi_whdr); 1124 m_adj(m0, sizeof(struct ieee80211_frame)); 1125 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1126 if (wi_start_tx(ifp, &frmhdr, m0) < 0) { 1127 m0 = NULL; 1128 rc = EIO; 1129 goto out; 1130 } 1131 m0 = NULL; 1132 1133 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1134 out: 1135 WI_UNLOCK(sc); 1136 1137 if (m0 != NULL) 1138 m_freem(m0); 1139 ieee80211_free_node(ni); 1140 return rc; 1141 } 1142 1143 static int 1144 wi_reset(struct wi_softc *sc) 1145 { 1146 #define WI_INIT_TRIES 3 1147 int i, error = 0; 1148 1149 for (i = 0; i < WI_INIT_TRIES; i++) { 1150 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); 1151 if (error == 0) 1152 break; 1153 DELAY(WI_DELAY * 1000); 1154 } 1155 sc->sc_reset = 1; 1156 if (i == WI_INIT_TRIES) { 1157 if_printf(sc->sc_ifp, "reset failed\n"); 1158 return error; 1159 } 1160 1161 CSR_WRITE_2(sc, WI_INT_EN, 0); 1162 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 1163 1164 /* Calibrate timer. */ 1165 wi_write_val(sc, WI_RID_TICK_TIME, 8); 1166 1167 return 0; 1168 #undef WI_INIT_TRIES 1169 } 1170 1171 static void 1172 wi_watchdog(void *arg) 1173 { 1174 struct wi_softc *sc = arg; 1175 struct ifnet *ifp = sc->sc_ifp; 1176 1177 WI_LOCK_ASSERT(sc); 1178 1179 if (!sc->sc_enabled) 1180 return; 1181 1182 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 1183 if_printf(ifp, "device timeout\n"); 1184 ifp->if_oerrors++; 1185 wi_init_locked(ifp->if_softc); 1186 return; 1187 } 1188 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 1189 } 1190 1191 static int 1192 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1193 { 1194 struct wi_softc *sc = ifp->if_softc; 1195 struct ieee80211com *ic = ifp->if_l2com; 1196 struct ifreq *ifr = (struct ifreq *) data; 1197 int error = 0, startall = 0; 1198 1199 switch (cmd) { 1200 case SIOCSIFFLAGS: 1201 WI_LOCK(sc); 1202 /* 1203 * Can't do promisc and hostap at the same time. If all that's 1204 * changing is the promisc flag, try to short-circuit a call to 1205 * wi_init() by just setting PROMISC in the hardware. 1206 */ 1207 if (ifp->if_flags & IFF_UP) { 1208 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1209 ifp->if_drv_flags & IFF_DRV_RUNNING) { 1210 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { 1211 wi_write_val(sc, WI_RID_PROMISC, 1212 (ifp->if_flags & IFF_PROMISC) != 0); 1213 } else { 1214 wi_init_locked(sc); 1215 startall = 1; 1216 } 1217 } else { 1218 wi_init_locked(sc); 1219 startall = 1; 1220 } 1221 } else { 1222 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1223 wi_stop_locked(sc, 1); 1224 sc->wi_gone = 0; 1225 } 1226 sc->sc_if_flags = ifp->if_flags; 1227 WI_UNLOCK(sc); 1228 if (startall) 1229 ieee80211_start_all(ic); 1230 break; 1231 case SIOCGIFMEDIA: 1232 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1233 break; 1234 case SIOCGIFADDR: 1235 error = ether_ioctl(ifp, cmd, data); 1236 break; 1237 default: 1238 error = EINVAL; 1239 break; 1240 } 1241 return error; 1242 } 1243 1244 static void 1245 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1246 { 1247 struct ieee80211vap *vap = ifp->if_softc; 1248 struct ieee80211com *ic = vap->iv_ic; 1249 struct wi_softc *sc = ic->ic_ifp->if_softc; 1250 u_int16_t val; 1251 int rate, len; 1252 1253 len = sizeof(val); 1254 if (sc->sc_enabled && 1255 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && 1256 len == sizeof(val)) { 1257 /* convert to 802.11 rate */ 1258 val = le16toh(val); 1259 rate = val * 2; 1260 if (sc->sc_firmware_type == WI_LUCENT) { 1261 if (rate == 10) 1262 rate = 11; /* 5.5Mbps */ 1263 } else { 1264 if (rate == 4*2) 1265 rate = 11; /* 5.5Mbps */ 1266 else if (rate == 8*2) 1267 rate = 22; /* 11Mbps */ 1268 } 1269 vap->iv_bss->ni_txrate = rate; 1270 } 1271 ieee80211_media_status(ifp, imr); 1272 } 1273 1274 static void 1275 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1276 { 1277 struct ifnet *ifp = sc->sc_ifp; 1278 struct ieee80211com *ic = ifp->if_l2com; 1279 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1280 struct ieee80211_node *ni = vap->iv_bss; 1281 1282 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1283 return; 1284 1285 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid))); 1286 DPRINTF(("%s ?\n", ether_sprintf(new_bssid))); 1287 1288 /* In promiscuous mode, the BSSID field is not a reliable 1289 * indicator of the firmware's BSSID. Damp spurious 1290 * change-of-BSSID indications. 1291 */ 1292 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1293 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1294 WI_MAX_FALSE_SYNS)) 1295 return; 1296 1297 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1298 #if 0 1299 /* 1300 * XXX hack; we should create a new node with the new bssid 1301 * and replace the existing ic_bss with it but since we don't 1302 * process management frames to collect state we cheat by 1303 * reusing the existing node as we know wi_newstate will be 1304 * called and it will overwrite the node state. 1305 */ 1306 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1307 #endif 1308 } 1309 1310 static __noinline void 1311 wi_rx_intr(struct wi_softc *sc) 1312 { 1313 struct ifnet *ifp = sc->sc_ifp; 1314 struct ieee80211com *ic = ifp->if_l2com; 1315 struct wi_frame frmhdr; 1316 struct mbuf *m; 1317 struct ieee80211_frame *wh; 1318 struct ieee80211_node *ni; 1319 int fid, len, off; 1320 u_int8_t dir; 1321 u_int16_t status; 1322 int8_t rssi, nf; 1323 1324 fid = CSR_READ_2(sc, WI_RX_FID); 1325 1326 /* First read in the frame header */ 1327 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1328 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1329 ifp->if_ierrors++; 1330 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); 1331 return; 1332 } 1333 1334 /* 1335 * Drop undecryptable or packets with receive errors here 1336 */ 1337 status = le16toh(frmhdr.wi_status); 1338 if (status & WI_STAT_ERRSTAT) { 1339 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1340 ifp->if_ierrors++; 1341 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1342 return; 1343 } 1344 1345 len = le16toh(frmhdr.wi_dat_len); 1346 off = ALIGN(sizeof(struct ieee80211_frame)); 1347 1348 /* 1349 * Sometimes the PRISM2.x returns bogusly large frames. Except 1350 * in monitor mode, just throw them away. 1351 */ 1352 if (off + len > MCLBYTES) { 1353 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1354 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1355 ifp->if_ierrors++; 1356 DPRINTF(("wi_rx_intr: oversized packet\n")); 1357 return; 1358 } else 1359 len = 0; 1360 } 1361 1362 if (off + len > MHLEN) 1363 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1364 else 1365 m = m_gethdr(M_NOWAIT, MT_DATA); 1366 if (m == NULL) { 1367 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1368 ifp->if_ierrors++; 1369 DPRINTF(("wi_rx_intr: MGET failed\n")); 1370 return; 1371 } 1372 m->m_data += off - sizeof(struct ieee80211_frame); 1373 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1374 wi_read_bap(sc, fid, sizeof(frmhdr), 1375 m->m_data + sizeof(struct ieee80211_frame), len); 1376 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1377 m->m_pkthdr.rcvif = ifp; 1378 1379 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1380 1381 rssi = frmhdr.wi_rx_signal; 1382 nf = frmhdr.wi_rx_silence; 1383 if (ieee80211_radiotap_active(ic)) { 1384 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; 1385 uint32_t rstamp; 1386 1387 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1388 le16toh(frmhdr.wi_rx_tstamp1); 1389 tap->wr_tsf = htole64((uint64_t)rstamp); 1390 /* XXX replace divide by table */ 1391 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1392 tap->wr_flags = 0; 1393 if (frmhdr.wi_status & WI_STAT_PCF) 1394 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1395 if (m->m_flags & M_WEP) 1396 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; 1397 tap->wr_antsignal = rssi; 1398 tap->wr_antnoise = nf; 1399 } 1400 1401 /* synchronize driver's BSSID with firmware's BSSID */ 1402 wh = mtod(m, struct ieee80211_frame *); 1403 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1404 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1405 wi_sync_bssid(sc, wh->i_addr3); 1406 1407 WI_UNLOCK(sc); 1408 1409 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1410 if (ni != NULL) { 1411 (void) ieee80211_input(ni, m, rssi, nf); 1412 ieee80211_free_node(ni); 1413 } else 1414 (void) ieee80211_input_all(ic, m, rssi, nf); 1415 1416 WI_LOCK(sc); 1417 } 1418 1419 static __noinline void 1420 wi_tx_ex_intr(struct wi_softc *sc) 1421 { 1422 struct ifnet *ifp = sc->sc_ifp; 1423 struct wi_frame frmhdr; 1424 int fid; 1425 1426 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1427 /* Read in the frame header */ 1428 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { 1429 u_int16_t status = le16toh(frmhdr.wi_status); 1430 /* 1431 * Spontaneous station disconnects appear as xmit 1432 * errors. Don't announce them and/or count them 1433 * as an output error. 1434 */ 1435 if ((status & WI_TXSTAT_DISCONNECT) == 0) { 1436 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1437 if_printf(ifp, "tx failed"); 1438 if (status & WI_TXSTAT_RET_ERR) 1439 printf(", retry limit exceeded"); 1440 if (status & WI_TXSTAT_AGED_ERR) 1441 printf(", max transmit lifetime exceeded"); 1442 if (status & WI_TXSTAT_DISCONNECT) 1443 printf(", port disconnected"); 1444 if (status & WI_TXSTAT_FORM_ERR) 1445 printf(", invalid format (data len %u src %6D)", 1446 le16toh(frmhdr.wi_dat_len), 1447 frmhdr.wi_ehdr.ether_shost, ":"); 1448 if (status & ~0xf) 1449 printf(", status=0x%x", status); 1450 printf("\n"); 1451 } 1452 ifp->if_oerrors++; 1453 } else { 1454 DPRINTF(("port disconnected\n")); 1455 ifp->if_collisions++; /* XXX */ 1456 } 1457 } else 1458 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); 1459 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); 1460 } 1461 1462 static __noinline void 1463 wi_tx_intr(struct wi_softc *sc) 1464 { 1465 struct ifnet *ifp = sc->sc_ifp; 1466 int fid, cur; 1467 1468 if (sc->wi_gone) 1469 return; 1470 1471 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1472 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1473 1474 cur = sc->sc_txcur; 1475 if (sc->sc_txd[cur].d_fid != fid) { 1476 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", 1477 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); 1478 return; 1479 } 1480 sc->sc_tx_timer = 0; 1481 sc->sc_txd[cur].d_len = 0; 1482 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; 1483 if (sc->sc_txd[cur].d_len == 0) 1484 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1485 else { 1486 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 1487 0, 0)) { 1488 if_printf(ifp, "xmit failed\n"); 1489 sc->sc_txd[cur].d_len = 0; 1490 } else { 1491 sc->sc_tx_timer = 5; 1492 } 1493 } 1494 } 1495 1496 static __noinline void 1497 wi_info_intr(struct wi_softc *sc) 1498 { 1499 struct ifnet *ifp = sc->sc_ifp; 1500 struct ieee80211com *ic = ifp->if_l2com; 1501 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1502 int i, fid, len, off; 1503 u_int16_t ltbuf[2]; 1504 u_int16_t stat; 1505 u_int32_t *ptr; 1506 1507 fid = CSR_READ_2(sc, WI_INFO_FID); 1508 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1509 1510 switch (le16toh(ltbuf[1])) { 1511 case WI_INFO_LINK_STAT: 1512 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1513 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1514 1515 if (vap == NULL) 1516 goto finish; 1517 1518 switch (le16toh(stat)) { 1519 case WI_INFO_LINK_STAT_CONNECTED: 1520 if (vap->iv_state == IEEE80211_S_RUN && 1521 vap->iv_opmode != IEEE80211_M_IBSS) 1522 break; 1523 /* fall thru... */ 1524 case WI_INFO_LINK_STAT_AP_CHG: 1525 IEEE80211_LOCK(ic); 1526 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ 1527 ieee80211_new_state(vap, IEEE80211_S_RUN, 0); 1528 IEEE80211_UNLOCK(ic); 1529 break; 1530 case WI_INFO_LINK_STAT_AP_INR: 1531 break; 1532 case WI_INFO_LINK_STAT_DISCONNECTED: 1533 /* we dropped off the net; e.g. due to deauth/disassoc */ 1534 IEEE80211_LOCK(ic); 1535 vap->iv_bss->ni_associd = 0; 1536 vap->iv_stats.is_rx_deauth++; 1537 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); 1538 IEEE80211_UNLOCK(ic); 1539 break; 1540 case WI_INFO_LINK_STAT_AP_OOR: 1541 /* XXX does this need to be per-vap? */ 1542 ieee80211_beacon_miss(ic); 1543 break; 1544 case WI_INFO_LINK_STAT_ASSOC_FAILED: 1545 if (vap->iv_opmode == IEEE80211_M_STA) 1546 ieee80211_new_state(vap, IEEE80211_S_SCAN, 1547 IEEE80211_SCAN_FAIL_TIMEOUT); 1548 break; 1549 } 1550 break; 1551 case WI_INFO_COUNTERS: 1552 /* some card versions have a larger stats structure */ 1553 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1554 ptr = (u_int32_t *)&sc->sc_stats; 1555 off = sizeof(ltbuf); 1556 for (i = 0; i < len; i++, off += 2, ptr++) { 1557 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1558 #ifdef WI_HERMES_STATS_WAR 1559 if (stat & 0xf000) 1560 stat = ~stat; 1561 #endif 1562 *ptr += stat; 1563 } 1564 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + 1565 sc->sc_stats.wi_tx_multi_retries + 1566 sc->sc_stats.wi_tx_retry_limit; 1567 break; 1568 default: 1569 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1570 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1571 break; 1572 } 1573 finish: 1574 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); 1575 } 1576 1577 static int 1578 wi_write_multi(struct wi_softc *sc) 1579 { 1580 struct ifnet *ifp = sc->sc_ifp; 1581 int n; 1582 struct ifmultiaddr *ifma; 1583 struct wi_mcast mlist; 1584 1585 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1586 allmulti: 1587 memset(&mlist, 0, sizeof(mlist)); 1588 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1589 sizeof(mlist)); 1590 } 1591 1592 n = 0; 1593 if_maddr_rlock(ifp); 1594 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1595 if (ifma->ifma_addr->sa_family != AF_LINK) 1596 continue; 1597 if (n >= 16) 1598 goto allmulti; 1599 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], 1600 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); 1601 n++; 1602 } 1603 if_maddr_runlock(ifp); 1604 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1605 IEEE80211_ADDR_LEN * n); 1606 } 1607 1608 static void 1609 wi_update_mcast(struct ifnet *ifp) 1610 { 1611 wi_write_multi(ifp->if_softc); 1612 } 1613 1614 static void 1615 wi_update_promisc(struct ifnet *ifp) 1616 { 1617 struct wi_softc *sc = ifp->if_softc; 1618 struct ieee80211com *ic = ifp->if_l2com; 1619 1620 WI_LOCK(sc); 1621 /* XXX handle WEP special case handling? */ 1622 wi_write_val(sc, WI_RID_PROMISC, 1623 (ic->ic_opmode == IEEE80211_M_MONITOR || 1624 (ifp->if_flags & IFF_PROMISC))); 1625 WI_UNLOCK(sc); 1626 } 1627 1628 static void 1629 wi_read_nicid(struct wi_softc *sc) 1630 { 1631 struct wi_card_ident *id; 1632 char *p; 1633 int len; 1634 u_int16_t ver[4]; 1635 1636 /* getting chip identity */ 1637 memset(ver, 0, sizeof(ver)); 1638 len = sizeof(ver); 1639 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1640 1641 sc->sc_firmware_type = WI_NOTYPE; 1642 sc->sc_nic_id = le16toh(ver[0]); 1643 for (id = wi_card_ident; id->card_name != NULL; id++) { 1644 if (sc->sc_nic_id == id->card_id) { 1645 sc->sc_nic_name = id->card_name; 1646 sc->sc_firmware_type = id->firm_type; 1647 break; 1648 } 1649 } 1650 if (sc->sc_firmware_type == WI_NOTYPE) { 1651 if (sc->sc_nic_id & 0x8000) { 1652 sc->sc_firmware_type = WI_INTERSIL; 1653 sc->sc_nic_name = "Unknown Prism chip"; 1654 } else { 1655 sc->sc_firmware_type = WI_LUCENT; 1656 sc->sc_nic_name = "Unknown Lucent chip"; 1657 } 1658 } 1659 if (bootverbose) 1660 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); 1661 1662 /* get primary firmware version (Only Prism chips) */ 1663 if (sc->sc_firmware_type != WI_LUCENT) { 1664 memset(ver, 0, sizeof(ver)); 1665 len = sizeof(ver); 1666 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 1667 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 1668 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1669 } 1670 1671 /* get station firmware version */ 1672 memset(ver, 0, sizeof(ver)); 1673 len = sizeof(ver); 1674 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 1675 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 1676 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1677 if (sc->sc_firmware_type == WI_INTERSIL && 1678 (sc->sc_sta_firmware_ver == 10102 || 1679 sc->sc_sta_firmware_ver == 20102)) { 1680 char ident[12]; 1681 memset(ident, 0, sizeof(ident)); 1682 len = sizeof(ident); 1683 /* value should be the format like "V2.00-11" */ 1684 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 1685 *(p = (char *)ident) >= 'A' && 1686 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 1687 sc->sc_firmware_type = WI_SYMBOL; 1688 sc->sc_sta_firmware_ver = (p[1] - '') * 10000 + 1689 (p[3] - '') * 1000 + (p[4] - '') * 100 + 1690 (p[6] - '') * 10 + (p[7] - ''); 1691 } 1692 } 1693 if (bootverbose) { 1694 device_printf(sc->sc_dev, "%s Firmware: ", 1695 wi_firmware_names[sc->sc_firmware_type]); 1696 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 1697 printf("Primary (%u.%u.%u), ", 1698 sc->sc_pri_firmware_ver / 10000, 1699 (sc->sc_pri_firmware_ver % 10000) / 100, 1700 sc->sc_pri_firmware_ver % 100); 1701 printf("Station (%u.%u.%u)\n", 1702 sc->sc_sta_firmware_ver / 10000, 1703 (sc->sc_sta_firmware_ver % 10000) / 100, 1704 sc->sc_sta_firmware_ver % 100); 1705 } 1706 } 1707 1708 static int 1709 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 1710 { 1711 struct wi_ssid ssid; 1712 1713 if (buflen > IEEE80211_NWID_LEN) 1714 return ENOBUFS; 1715 memset(&ssid, 0, sizeof(ssid)); 1716 ssid.wi_len = htole16(buflen); 1717 memcpy(ssid.wi_ssid, buf, buflen); 1718 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 1719 } 1720 1721 static int 1722 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) 1723 { 1724 static const uint16_t lucent_rates[12] = { 1725 [ 0] = 3, /* auto */ 1726 [ 1] = 1, /* 1Mb/s */ 1727 [ 2] = 2, /* 2Mb/s */ 1728 [ 5] = 4, /* 5.5Mb/s */ 1729 [11] = 5 /* 11Mb/s */ 1730 }; 1731 static const uint16_t intersil_rates[12] = { 1732 [ 0] = 0xf, /* auto */ 1733 [ 1] = 0, /* 1Mb/s */ 1734 [ 2] = 1, /* 2Mb/s */ 1735 [ 5] = 2, /* 5.5Mb/s */ 1736 [11] = 3, /* 11Mb/s */ 1737 }; 1738 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? 1739 lucent_rates : intersil_rates; 1740 struct ieee80211com *ic = vap->iv_ic; 1741 const struct ieee80211_txparam *tp; 1742 1743 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 1744 return wi_write_val(sc, WI_RID_TX_RATE, 1745 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? 1746 rates[0] : rates[tp->ucastrate / 2])); 1747 } 1748 1749 static int 1750 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) 1751 { 1752 int error = 0; 1753 int i, keylen; 1754 u_int16_t val; 1755 struct wi_key wkey[IEEE80211_WEP_NKID]; 1756 1757 switch (sc->sc_firmware_type) { 1758 case WI_LUCENT: 1759 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 1760 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 1761 if (error) 1762 break; 1763 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) 1764 break; 1765 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); 1766 if (error) 1767 break; 1768 memset(wkey, 0, sizeof(wkey)); 1769 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1770 keylen = vap->iv_nw_keys[i].wk_keylen; 1771 wkey[i].wi_keylen = htole16(keylen); 1772 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, 1773 keylen); 1774 } 1775 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 1776 wkey, sizeof(wkey)); 1777 sc->sc_encryption = 0; 1778 break; 1779 1780 case WI_INTERSIL: 1781 val = HOST_ENCRYPT | HOST_DECRYPT; 1782 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 1783 /* 1784 * ONLY HWB3163 EVAL-CARD Firmware version 1785 * less than 0.8 variant2 1786 * 1787 * If promiscuous mode disable, Prism2 chip 1788 * does not work with WEP . 1789 * It is under investigation for details. 1790 * (ichiro@netbsd.org) 1791 */ 1792 if (sc->sc_sta_firmware_ver < 802 ) { 1793 /* firm ver < 0.8 variant 2 */ 1794 wi_write_val(sc, WI_RID_PROMISC, 1); 1795 } 1796 wi_write_val(sc, WI_RID_CNFAUTHMODE, 1797 vap->iv_bss->ni_authmode); 1798 val |= PRIVACY_INVOKED; 1799 } else { 1800 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); 1801 } 1802 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 1803 if (error) 1804 break; 1805 sc->sc_encryption = val; 1806 if ((val & PRIVACY_INVOKED) == 0) 1807 break; 1808 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); 1809 break; 1810 } 1811 return error; 1812 } 1813 1814 static int 1815 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 1816 { 1817 int i, s = 0; 1818 1819 if (sc->wi_gone) 1820 return (ENODEV); 1821 1822 /* wait for the busy bit to clear */ 1823 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ 1824 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 1825 break; 1826 DELAY(1*1000); /* 1ms */ 1827 } 1828 if (i == 0) { 1829 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", 1830 __func__, cmd); 1831 sc->wi_gone = 1; 1832 return(ETIMEDOUT); 1833 } 1834 1835 CSR_WRITE_2(sc, WI_PARAM0, val0); 1836 CSR_WRITE_2(sc, WI_PARAM1, val1); 1837 CSR_WRITE_2(sc, WI_PARAM2, val2); 1838 CSR_WRITE_2(sc, WI_COMMAND, cmd); 1839 1840 if (cmd == WI_CMD_INI) { 1841 /* XXX: should sleep here. */ 1842 DELAY(100*1000); /* 100ms delay for init */ 1843 } 1844 for (i = 0; i < WI_TIMEOUT; i++) { 1845 /* 1846 * Wait for 'command complete' bit to be 1847 * set in the event status register. 1848 */ 1849 s = CSR_READ_2(sc, WI_EVENT_STAT); 1850 if (s & WI_EV_CMD) { 1851 /* Ack the event and read result code. */ 1852 s = CSR_READ_2(sc, WI_STATUS); 1853 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1854 if (s & WI_STAT_CMD_RESULT) { 1855 return(EIO); 1856 } 1857 break; 1858 } 1859 DELAY(WI_DELAY); 1860 } 1861 1862 if (i == WI_TIMEOUT) { 1863 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " 1864 "event status 0x%04x\n", __func__, cmd, s); 1865 if (s == 0xffff) 1866 sc->wi_gone = 1; 1867 return(ETIMEDOUT); 1868 } 1869 return (0); 1870 } 1871 1872 static int 1873 wi_seek_bap(struct wi_softc *sc, int id, int off) 1874 { 1875 int i, status; 1876 1877 CSR_WRITE_2(sc, WI_SEL0, id); 1878 CSR_WRITE_2(sc, WI_OFF0, off); 1879 1880 for (i = 0; ; i++) { 1881 status = CSR_READ_2(sc, WI_OFF0); 1882 if ((status & WI_OFF_BUSY) == 0) 1883 break; 1884 if (i == WI_TIMEOUT) { 1885 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", 1886 __func__, id, off); 1887 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1888 if (status == 0xffff) 1889 sc->wi_gone = 1; 1890 return ETIMEDOUT; 1891 } 1892 DELAY(1); 1893 } 1894 if (status & WI_OFF_ERR) { 1895 device_printf(sc->sc_dev, "%s: error, id %x off %x\n", 1896 __func__, id, off); 1897 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1898 return EIO; 1899 } 1900 sc->sc_bap_id = id; 1901 sc->sc_bap_off = off; 1902 return 0; 1903 } 1904 1905 static int 1906 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1907 { 1908 int error, cnt; 1909 1910 if (buflen == 0) 1911 return 0; 1912 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1913 if ((error = wi_seek_bap(sc, id, off)) != 0) 1914 return error; 1915 } 1916 cnt = (buflen + 1) / 2; 1917 CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 1918 sc->sc_bap_off += cnt * 2; 1919 return 0; 1920 } 1921 1922 static int 1923 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1924 { 1925 int error, cnt; 1926 1927 if (buflen == 0) 1928 return 0; 1929 1930 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1931 if ((error = wi_seek_bap(sc, id, off)) != 0) 1932 return error; 1933 } 1934 cnt = (buflen + 1) / 2; 1935 CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 1936 sc->sc_bap_off += cnt * 2; 1937 1938 return 0; 1939 } 1940 1941 static int 1942 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 1943 { 1944 int error, len; 1945 struct mbuf *m; 1946 1947 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 1948 if (m->m_len == 0) 1949 continue; 1950 1951 len = min(m->m_len, totlen); 1952 1953 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 1954 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 1955 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 1956 totlen); 1957 } 1958 1959 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 1960 return error; 1961 1962 off += m->m_len; 1963 totlen -= len; 1964 } 1965 return 0; 1966 } 1967 1968 static int 1969 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 1970 { 1971 int i; 1972 1973 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 1974 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", 1975 __func__, len); 1976 return ENOMEM; 1977 } 1978 1979 for (i = 0; i < WI_TIMEOUT; i++) { 1980 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 1981 break; 1982 DELAY(1); 1983 } 1984 if (i == WI_TIMEOUT) { 1985 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); 1986 return ETIMEDOUT; 1987 } 1988 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 1989 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1990 return 0; 1991 } 1992 1993 static int 1994 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 1995 { 1996 int error, len; 1997 u_int16_t ltbuf[2]; 1998 1999 /* Tell the NIC to enter record read mode. */ 2000 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 2001 if (error) 2002 return error; 2003 2004 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2005 if (error) 2006 return error; 2007 2008 if (le16toh(ltbuf[1]) != rid) { 2009 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 2010 rid, le16toh(ltbuf[1])); 2011 return EIO; 2012 } 2013 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 2014 if (*buflenp < len) { 2015 device_printf(sc->sc_dev, "record buffer is too small, " 2016 "rid=%x, size=%d, len=%d\n", 2017 rid, *buflenp, len); 2018 return ENOSPC; 2019 } 2020 *buflenp = len; 2021 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 2022 } 2023 2024 static int 2025 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 2026 { 2027 int error; 2028 u_int16_t ltbuf[2]; 2029 2030 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 2031 ltbuf[1] = htole16(rid); 2032 2033 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2034 if (error) { 2035 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", 2036 __func__, rid); 2037 return error; 2038 } 2039 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2040 if (error) { 2041 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", 2042 __func__, rid); 2043 return error; 2044 } 2045 2046 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2047 } 2048 2049 static int 2050 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) 2051 { 2052 /* NB: 42 bytes is probably ok to have on the stack */ 2053 char buf[sizeof(uint16_t) + 40]; 2054 2055 if (ie->ie_len > 40) 2056 return EINVAL; 2057 /* NB: firmware requires 16-bit ie length before ie data */ 2058 *(uint16_t *) buf = htole16(ie->ie_len); 2059 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); 2060 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); 2061 } 2062 2063 int 2064 wi_alloc(device_t dev, int rid) 2065 { 2066 struct wi_softc *sc = device_get_softc(dev); 2067 2068 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 2069 sc->iobase_rid = rid; 2070 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, 2071 &sc->iobase_rid, 0, ~0, (1 << 6), 2072 rman_make_alignment_flags(1 << 6) | RF_ACTIVE); 2073 if (sc->iobase == NULL) { 2074 device_printf(dev, "No I/O space?!\n"); 2075 return ENXIO; 2076 } 2077 2078 sc->wi_io_addr = rman_get_start(sc->iobase); 2079 sc->wi_btag = rman_get_bustag(sc->iobase); 2080 sc->wi_bhandle = rman_get_bushandle(sc->iobase); 2081 } else { 2082 sc->mem_rid = rid; 2083 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 2084 &sc->mem_rid, RF_ACTIVE); 2085 if (sc->mem == NULL) { 2086 device_printf(dev, "No Mem space on prism2.5?\n"); 2087 return ENXIO; 2088 } 2089 2090 sc->wi_btag = rman_get_bustag(sc->mem); 2091 sc->wi_bhandle = rman_get_bushandle(sc->mem); 2092 } 2093 2094 sc->irq_rid = 0; 2095 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 2096 RF_ACTIVE | 2097 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); 2098 if (sc->irq == NULL) { 2099 wi_free(dev); 2100 device_printf(dev, "No irq?!\n"); 2101 return ENXIO; 2102 } 2103 2104 sc->sc_dev = dev; 2105 sc->sc_unit = device_get_unit(dev); 2106 return 0; 2107 } 2108 2109 void 2110 wi_free(device_t dev) 2111 { 2112 struct wi_softc *sc = device_get_softc(dev); 2113 2114 if (sc->iobase != NULL) { 2115 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); 2116 sc->iobase = NULL; 2117 } 2118 if (sc->irq != NULL) { 2119 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 2120 sc->irq = NULL; 2121 } 2122 if (sc->mem != NULL) { 2123 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 2124 sc->mem = NULL; 2125 } 2126 }
Cache object: 16f01559da543a748d71657e661aa0c2
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