Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/dev/wi/if_wi.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
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: releng/9.0/sys/dev/wi/if_wi.c 217586 2011-01-19 17:04:07Z mdf $"); 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/bus.h> 83 #include <machine/resource.h> 84 #include <machine/atomic.h> 85 #include <sys/rman.h> 86 87 #include <net/if.h> 88 #include <net/if_arp.h> 89 #include <net/ethernet.h> 90 #include <net/if_dl.h> 91 #include <net/if_llc.h> 92 #include <net/if_media.h> 93 #include <net/if_types.h> 94 95 #include <net80211/ieee80211_var.h> 96 #include <net80211/ieee80211_ioctl.h> 97 #include <net80211/ieee80211_radiotap.h> 98 99 #include <netinet/in.h> 100 #include <netinet/in_systm.h> 101 #include <netinet/in_var.h> 102 #include <netinet/ip.h> 103 #include <netinet/if_ether.h> 104 105 #include <net/bpf.h> 106 107 #include <dev/wi/if_wavelan_ieee.h> 108 #include <dev/wi/if_wireg.h> 109 #include <dev/wi/if_wivar.h> 110 111 static struct ieee80211vap *wi_vap_create(struct ieee80211com *ic, 112 const char name[IFNAMSIZ], int unit, int opmode, int flags, 113 const uint8_t bssid[IEEE80211_ADDR_LEN], 114 const uint8_t mac[IEEE80211_ADDR_LEN]); 115 static void wi_vap_delete(struct ieee80211vap *vap); 116 static void wi_stop_locked(struct wi_softc *sc, int disable); 117 static void wi_start_locked(struct ifnet *); 118 static void wi_start(struct ifnet *); 119 static int wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, 120 struct mbuf *m0); 121 static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *, 122 const struct ieee80211_bpf_params *); 123 static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int); 124 static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state, 125 int); 126 static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 127 int subtype, int rssi, int nf); 128 static int wi_reset(struct wi_softc *); 129 static void wi_watchdog(void *); 130 static int wi_ioctl(struct ifnet *, u_long, caddr_t); 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) printf X 183 #else 184 #define DPRINTF(X) 185 #endif 186 187 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO) 188 189 struct wi_card_ident wi_card_ident[] = { 190 /* CARD_ID CARD_NAME FIRM_TYPE */ 191 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, 192 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, 193 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, 194 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, 195 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, 196 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, 197 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, 198 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, 199 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, 200 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, 201 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, 202 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, 203 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 204 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 205 { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 206 { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 207 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 208 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 209 { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 210 { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 211 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 212 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 213 { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 214 { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 215 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 216 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 217 { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 218 { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 219 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 220 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 221 { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 222 { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 223 { 0, NULL, 0 }, 224 }; 225 226 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" }; 227 228 devclass_t wi_devclass; 229 230 int 231 wi_attach(device_t dev) 232 { 233 struct wi_softc *sc = device_get_softc(dev); 234 struct ieee80211com *ic; 235 struct ifnet *ifp; 236 int i, nrates, buflen; 237 u_int16_t val; 238 u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE]; 239 struct ieee80211_rateset *rs; 240 struct sysctl_ctx_list *sctx; 241 struct sysctl_oid *soid; 242 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 243 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 244 }; 245 int error; 246 uint8_t macaddr[IEEE80211_ADDR_LEN]; 247 248 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 249 if (ifp == NULL) { 250 device_printf(dev, "can not if_alloc\n"); 251 wi_free(dev); 252 return ENOSPC; 253 } 254 ic = ifp->if_l2com; 255 256 sc->sc_firmware_type = WI_NOTYPE; 257 sc->wi_cmd_count = 500; 258 /* Reset the NIC. */ 259 if (wi_reset(sc) != 0) { 260 wi_free(dev); 261 return ENXIO; /* XXX */ 262 } 263 264 /* Read NIC identification */ 265 wi_read_nicid(sc); 266 switch (sc->sc_firmware_type) { 267 case WI_LUCENT: 268 if (sc->sc_sta_firmware_ver < 60006) 269 goto reject; 270 break; 271 case WI_INTERSIL: 272 if (sc->sc_sta_firmware_ver < 800) 273 goto reject; 274 break; 275 default: 276 reject: 277 device_printf(dev, "Sorry, this card is not supported " 278 "(type %d, firmware ver %d)\n", 279 sc->sc_firmware_type, sc->sc_sta_firmware_ver); 280 wi_free(dev); 281 return EOPNOTSUPP; 282 } 283 284 /* Export info about the device via sysctl */ 285 sctx = device_get_sysctl_ctx(dev); 286 soid = device_get_sysctl_tree(dev); 287 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 288 "firmware_type", CTLFLAG_RD, 289 wi_firmware_names[sc->sc_firmware_type], 0, 290 "Firmware type string"); 291 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version", 292 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0, 293 "Station Firmware version"); 294 if (sc->sc_firmware_type == WI_INTERSIL) 295 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 296 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0, 297 "Primary Firmware version"); 298 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id", 299 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id"); 300 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name", 301 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name"); 302 303 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 304 MTX_DEF | MTX_RECURSE); 305 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 306 307 /* 308 * Read the station address. 309 * And do it twice. I've seen PRISM-based cards that return 310 * an error when trying to read it the first time, which causes 311 * the probe to fail. 312 */ 313 buflen = IEEE80211_ADDR_LEN; 314 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 315 if (error != 0) { 316 buflen = IEEE80211_ADDR_LEN; 317 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 318 } 319 if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) { 320 if (error != 0) 321 device_printf(dev, "mac read failed %d\n", error); 322 else { 323 device_printf(dev, "mac read failed (all zeros)\n"); 324 error = ENXIO; 325 } 326 wi_free(dev); 327 return (error); 328 } 329 330 ifp->if_softc = sc; 331 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 332 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 333 ifp->if_ioctl = wi_ioctl; 334 ifp->if_start = wi_start; 335 ifp->if_init = wi_init; 336 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 337 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 338 IFQ_SET_READY(&ifp->if_snd); 339 340 ic->ic_ifp = ifp; 341 ic->ic_phytype = IEEE80211_T_DS; 342 ic->ic_opmode = IEEE80211_M_STA; 343 ic->ic_caps = IEEE80211_C_STA 344 | IEEE80211_C_PMGT 345 | IEEE80211_C_MONITOR 346 ; 347 348 /* 349 * Query the card for available channels and setup the 350 * channel table. We assume these are all 11b channels. 351 */ 352 buflen = sizeof(val); 353 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) 354 val = htole16(0x1fff); /* assume 1-11 */ 355 KASSERT(val != 0, ("wi_attach: no available channels listed!")); 356 357 val <<= 1; /* shift for base 1 indices */ 358 for (i = 1; i < 16; i++) { 359 struct ieee80211_channel *c; 360 361 if (!isset((u_int8_t*)&val, i)) 362 continue; 363 c = &ic->ic_channels[ic->ic_nchans++]; 364 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 365 c->ic_flags = IEEE80211_CHAN_B; 366 c->ic_ieee = i; 367 /* XXX txpowers? */ 368 } 369 370 /* 371 * Set flags based on firmware version. 372 */ 373 switch (sc->sc_firmware_type) { 374 case WI_LUCENT: 375 sc->sc_ntxbuf = 1; 376 ic->ic_caps |= IEEE80211_C_IBSS; 377 378 sc->sc_ibss_port = WI_PORTTYPE_BSS; 379 sc->sc_monitor_port = WI_PORTTYPE_ADHOC; 380 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; 381 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; 382 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 383 break; 384 case WI_INTERSIL: 385 sc->sc_ntxbuf = WI_NTXBUF; 386 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR 387 | WI_FLAGS_HAS_ROAMING; 388 /* 389 * Old firmware are slow, so give peace a chance. 390 */ 391 if (sc->sc_sta_firmware_ver < 10000) 392 sc->wi_cmd_count = 5000; 393 if (sc->sc_sta_firmware_ver > 10101) 394 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 395 ic->ic_caps |= IEEE80211_C_IBSS; 396 /* 397 * version 0.8.3 and newer are the only ones that are known 398 * to currently work. Earlier versions can be made to work, 399 * at least according to the Linux driver but we require 400 * monitor mode so this is irrelevant. 401 */ 402 ic->ic_caps |= IEEE80211_C_HOSTAP; 403 if (sc->sc_sta_firmware_ver >= 10603) 404 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; 405 if (sc->sc_sta_firmware_ver >= 10700) { 406 /* 407 * 1.7.0+ have the necessary support for sta mode WPA. 408 */ 409 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; 410 ic->ic_caps |= IEEE80211_C_WPA; 411 } 412 413 sc->sc_ibss_port = WI_PORTTYPE_IBSS; 414 sc->sc_monitor_port = WI_PORTTYPE_APSILENT; 415 sc->sc_min_rssi = WI_PRISM_MIN_RSSI; 416 sc->sc_max_rssi = WI_PRISM_MAX_RSSI; 417 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 418 break; 419 } 420 421 /* 422 * Find out if we support WEP on this card. 423 */ 424 buflen = sizeof(val); 425 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && 426 val != htole16(0)) 427 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; 428 429 /* Find supported rates. */ 430 buflen = sizeof(ratebuf); 431 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 432 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { 433 nrates = le16toh(*(u_int16_t *)ratebuf); 434 if (nrates > IEEE80211_RATE_MAXSIZE) 435 nrates = IEEE80211_RATE_MAXSIZE; 436 rs->rs_nrates = 0; 437 for (i = 0; i < nrates; i++) 438 if (ratebuf[2+i]) 439 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; 440 } else { 441 /* XXX fallback on error? */ 442 } 443 444 buflen = sizeof(val); 445 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 446 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { 447 sc->sc_dbm_offset = le16toh(val); 448 } 449 450 sc->sc_portnum = WI_DEFAULT_PORT; 451 452 ieee80211_ifattach(ic, macaddr); 453 ic->ic_raw_xmit = wi_raw_xmit; 454 ic->ic_scan_start = wi_scan_start; 455 ic->ic_scan_end = wi_scan_end; 456 ic->ic_set_channel = wi_set_channel; 457 458 ic->ic_vap_create = wi_vap_create; 459 ic->ic_vap_delete = wi_vap_delete; 460 ic->ic_update_mcast = wi_update_mcast; 461 ic->ic_update_promisc = wi_update_promisc; 462 463 ieee80211_radiotap_attach(ic, 464 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 465 WI_TX_RADIOTAP_PRESENT, 466 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 467 WI_RX_RADIOTAP_PRESENT); 468 469 if (bootverbose) 470 ieee80211_announce(ic); 471 472 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 473 NULL, wi_intr, sc, &sc->wi_intrhand); 474 if (error) { 475 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 476 ieee80211_ifdetach(ic); 477 if_free(sc->sc_ifp); 478 wi_free(dev); 479 return error; 480 } 481 482 return (0); 483 } 484 485 int 486 wi_detach(device_t dev) 487 { 488 struct wi_softc *sc = device_get_softc(dev); 489 struct ifnet *ifp = sc->sc_ifp; 490 struct ieee80211com *ic = ifp->if_l2com; 491 492 WI_LOCK(sc); 493 494 /* check if device was removed */ 495 sc->wi_gone |= !bus_child_present(dev); 496 497 wi_stop_locked(sc, 0); 498 WI_UNLOCK(sc); 499 ieee80211_ifdetach(ic); 500 501 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); 502 if_free(sc->sc_ifp); 503 wi_free(dev); 504 mtx_destroy(&sc->sc_mtx); 505 return (0); 506 } 507 508 static struct ieee80211vap * 509 wi_vap_create(struct ieee80211com *ic, 510 const char name[IFNAMSIZ], int unit, int opmode, int flags, 511 const uint8_t bssid[IEEE80211_ADDR_LEN], 512 const uint8_t mac[IEEE80211_ADDR_LEN]) 513 { 514 struct wi_softc *sc = ic->ic_ifp->if_softc; 515 struct wi_vap *wvp; 516 struct ieee80211vap *vap; 517 518 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 519 return NULL; 520 wvp = (struct wi_vap *) malloc(sizeof(struct wi_vap), 521 M_80211_VAP, M_NOWAIT | M_ZERO); 522 if (wvp == NULL) 523 return NULL; 524 525 vap = &wvp->wv_vap; 526 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 527 528 vap->iv_max_aid = WI_MAX_AID; 529 530 switch (opmode) { 531 case IEEE80211_M_STA: 532 sc->sc_porttype = WI_PORTTYPE_BSS; 533 wvp->wv_newstate = vap->iv_newstate; 534 vap->iv_newstate = wi_newstate_sta; 535 /* need to filter mgt frames to avoid confusing state machine */ 536 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 537 vap->iv_recv_mgmt = wi_recv_mgmt; 538 break; 539 case IEEE80211_M_IBSS: 540 sc->sc_porttype = sc->sc_ibss_port; 541 wvp->wv_newstate = vap->iv_newstate; 542 vap->iv_newstate = wi_newstate_sta; 543 break; 544 case IEEE80211_M_AHDEMO: 545 sc->sc_porttype = WI_PORTTYPE_ADHOC; 546 break; 547 case IEEE80211_M_HOSTAP: 548 sc->sc_porttype = WI_PORTTYPE_HOSTAP; 549 wvp->wv_newstate = vap->iv_newstate; 550 vap->iv_newstate = wi_newstate_hostap; 551 break; 552 case IEEE80211_M_MONITOR: 553 sc->sc_porttype = sc->sc_monitor_port; 554 break; 555 default: 556 break; 557 } 558 559 /* complete setup */ 560 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); 561 ic->ic_opmode = opmode; 562 return vap; 563 } 564 565 static void 566 wi_vap_delete(struct ieee80211vap *vap) 567 { 568 struct wi_vap *wvp = WI_VAP(vap); 569 570 ieee80211_vap_detach(vap); 571 free(wvp, M_80211_VAP); 572 } 573 574 int 575 wi_shutdown(device_t dev) 576 { 577 struct wi_softc *sc = device_get_softc(dev); 578 579 wi_stop(sc, 1); 580 return (0); 581 } 582 583 void 584 wi_intr(void *arg) 585 { 586 struct wi_softc *sc = arg; 587 struct ifnet *ifp = sc->sc_ifp; 588 u_int16_t status; 589 590 WI_LOCK(sc); 591 592 if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { 593 CSR_WRITE_2(sc, WI_INT_EN, 0); 594 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 595 WI_UNLOCK(sc); 596 return; 597 } 598 599 /* Disable interrupts. */ 600 CSR_WRITE_2(sc, WI_INT_EN, 0); 601 602 status = CSR_READ_2(sc, WI_EVENT_STAT); 603 if (status & WI_EV_RX) 604 wi_rx_intr(sc); 605 if (status & WI_EV_ALLOC) 606 wi_tx_intr(sc); 607 if (status & WI_EV_TX_EXC) 608 wi_tx_ex_intr(sc); 609 if (status & WI_EV_INFO) 610 wi_info_intr(sc); 611 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 612 !IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 613 wi_start_locked(ifp); 614 615 /* Re-enable interrupts. */ 616 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 617 618 WI_UNLOCK(sc); 619 620 return; 621 } 622 623 static void 624 wi_enable(struct wi_softc *sc) 625 { 626 /* Enable interrupts */ 627 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 628 629 /* enable port */ 630 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 631 sc->sc_enabled = 1; 632 } 633 634 static int 635 wi_setup_locked(struct wi_softc *sc, int porttype, int mode, 636 uint8_t mac[IEEE80211_ADDR_LEN]) 637 { 638 int i; 639 640 wi_reset(sc); 641 642 wi_write_val(sc, WI_RID_PORTTYPE, porttype); 643 wi_write_val(sc, WI_RID_CREATE_IBSS, mode); 644 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); 645 /* XXX IEEE80211_BPF_NOACK wants 0 */ 646 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); 647 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 648 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ 649 650 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); 651 652 /* Allocate fids for the card */ 653 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 654 for (i = 0; i < sc->sc_ntxbuf; i++) { 655 int error = wi_alloc_fid(sc, sc->sc_buflen, 656 &sc->sc_txd[i].d_fid); 657 if (error) { 658 device_printf(sc->sc_dev, 659 "tx buffer allocation failed (error %u)\n", 660 error); 661 return error; 662 } 663 sc->sc_txd[i].d_len = 0; 664 } 665 sc->sc_txcur = sc->sc_txnext = 0; 666 667 return 0; 668 } 669 670 static void 671 wi_init_locked(struct wi_softc *sc) 672 { 673 struct ifnet *ifp = sc->sc_ifp; 674 int wasenabled; 675 676 WI_LOCK_ASSERT(sc); 677 678 wasenabled = sc->sc_enabled; 679 if (wasenabled) 680 wi_stop_locked(sc, 1); 681 682 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { 683 if_printf(ifp, "interface not running\n"); 684 wi_stop_locked(sc, 1); 685 return; 686 } 687 688 ifp->if_drv_flags |= IFF_DRV_RUNNING; 689 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 690 691 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 692 693 wi_enable(sc); /* Enable desired port */ 694 } 695 696 void 697 wi_init(void *arg) 698 { 699 struct wi_softc *sc = arg; 700 struct ifnet *ifp = sc->sc_ifp; 701 struct ieee80211com *ic = ifp->if_l2com; 702 703 WI_LOCK(sc); 704 wi_init_locked(sc); 705 WI_UNLOCK(sc); 706 707 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 708 ieee80211_start_all(ic); /* start all vap's */ 709 } 710 711 static void 712 wi_stop_locked(struct wi_softc *sc, int disable) 713 { 714 struct ifnet *ifp = sc->sc_ifp; 715 716 WI_LOCK_ASSERT(sc); 717 718 if (sc->sc_enabled && !sc->wi_gone) { 719 CSR_WRITE_2(sc, WI_INT_EN, 0); 720 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 721 if (disable) 722 sc->sc_enabled = 0; 723 } else if (sc->wi_gone && disable) /* gone --> not enabled */ 724 sc->sc_enabled = 0; 725 726 callout_stop(&sc->sc_watchdog); 727 sc->sc_tx_timer = 0; 728 sc->sc_false_syns = 0; 729 730 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING); 731 } 732 733 void 734 wi_stop(struct wi_softc *sc, int disable) 735 { 736 WI_LOCK(sc); 737 wi_stop_locked(sc, disable); 738 WI_UNLOCK(sc); 739 } 740 741 static void 742 wi_set_channel(struct ieee80211com *ic) 743 { 744 struct ifnet *ifp = ic->ic_ifp; 745 struct wi_softc *sc = ifp->if_softc; 746 747 DPRINTF(("%s: channel %d, %sscanning\n", __func__, 748 ieee80211_chan2ieee(ic, ic->ic_curchan), 749 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); 750 751 WI_LOCK(sc); 752 wi_write_val(sc, WI_RID_OWN_CHNL, 753 ieee80211_chan2ieee(ic, ic->ic_curchan)); 754 WI_UNLOCK(sc); 755 } 756 757 static void 758 wi_scan_start(struct ieee80211com *ic) 759 { 760 struct ifnet *ifp = ic->ic_ifp; 761 struct wi_softc *sc = ifp->if_softc; 762 struct ieee80211_scan_state *ss = ic->ic_scan; 763 764 DPRINTF(("%s\n", __func__)); 765 766 WI_LOCK(sc); 767 /* 768 * Switch device to monitor mode. 769 */ 770 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); 771 if (sc->sc_firmware_type == WI_INTERSIL) { 772 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 773 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 774 } 775 /* force full dwell time to compensate for firmware overhead */ 776 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); 777 WI_UNLOCK(sc); 778 779 } 780 781 static void 782 wi_scan_end(struct ieee80211com *ic) 783 { 784 struct ifnet *ifp = ic->ic_ifp; 785 struct wi_softc *sc = ifp->if_softc; 786 787 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); 788 789 WI_LOCK(sc); 790 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); 791 if (sc->sc_firmware_type == WI_INTERSIL) { 792 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 793 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 794 } 795 WI_UNLOCK(sc); 796 } 797 798 static void 799 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 800 int subtype, int rssi, int nf) 801 { 802 struct ieee80211vap *vap = ni->ni_vap; 803 804 switch (subtype) { 805 case IEEE80211_FC0_SUBTYPE_AUTH: 806 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 807 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 808 /* NB: filter frames that trigger state changes */ 809 return; 810 } 811 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); 812 } 813 814 static int 815 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 816 { 817 struct ieee80211com *ic = vap->iv_ic; 818 struct ifnet *ifp = ic->ic_ifp; 819 struct ieee80211_node *bss; 820 struct wi_softc *sc = ifp->if_softc; 821 822 DPRINTF(("%s: %s -> %s\n", __func__, 823 ieee80211_state_name[vap->iv_state], 824 ieee80211_state_name[nstate])); 825 826 if (nstate == IEEE80211_S_AUTH) { 827 WI_LOCK(sc); 828 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); 829 830 if (vap->iv_flags & IEEE80211_F_PMGTON) { 831 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 832 wi_write_val(sc, WI_RID_PM_ENABLED, 1); 833 } 834 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 835 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 836 wi_write_val(sc, WI_RID_FRAG_THRESH, 837 vap->iv_fragthreshold); 838 wi_write_txrate(sc, vap); 839 840 bss = vap->iv_bss; 841 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); 842 wi_write_val(sc, WI_RID_OWN_CHNL, 843 ieee80211_chan2ieee(ic, bss->ni_chan)); 844 845 /* Configure WEP. */ 846 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 847 wi_write_wep(sc, vap); 848 else 849 sc->sc_encryption = 0; 850 851 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 852 (vap->iv_flags & IEEE80211_F_WPA)) { 853 wi_write_val(sc, WI_RID_WPA_HANDLING, 1); 854 if (vap->iv_appie_wpa != NULL) 855 wi_write_appie(sc, WI_RID_WPA_DATA, 856 vap->iv_appie_wpa); 857 } 858 859 wi_enable(sc); /* enable port */ 860 861 /* Lucent firmware does not support the JOIN RID. */ 862 if (sc->sc_firmware_type == WI_INTERSIL) { 863 struct wi_joinreq join; 864 865 memset(&join, 0, sizeof(join)); 866 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); 867 join.wi_chan = htole16( 868 ieee80211_chan2ieee(ic, bss->ni_chan)); 869 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 870 } 871 WI_UNLOCK(sc); 872 873 /* 874 * NB: don't go through 802.11 layer, it'll send auth frame; 875 * instead we drive the state machine from the link status 876 * notification we get on association. 877 */ 878 vap->iv_state = nstate; 879 return (0); 880 } 881 return WI_VAP(vap)->wv_newstate(vap, nstate, arg); 882 } 883 884 static int 885 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 886 { 887 struct ieee80211com *ic = vap->iv_ic; 888 struct ifnet *ifp = ic->ic_ifp; 889 struct ieee80211_node *bss; 890 struct wi_softc *sc = ifp->if_softc; 891 int error; 892 893 DPRINTF(("%s: %s -> %s\n", __func__, 894 ieee80211_state_name[vap->iv_state], 895 ieee80211_state_name[nstate])); 896 897 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); 898 if (error == 0 && nstate == IEEE80211_S_RUN) { 899 WI_LOCK(sc); 900 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); 901 902 bss = vap->iv_bss; 903 wi_write_ssid(sc, WI_RID_OWN_SSID, 904 bss->ni_essid, bss->ni_esslen); 905 wi_write_val(sc, WI_RID_OWN_CHNL, 906 ieee80211_chan2ieee(ic, bss->ni_chan)); 907 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); 908 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); 909 wi_write_txrate(sc, vap); 910 911 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); 912 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); 913 914 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 915 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 916 wi_write_val(sc, WI_RID_FRAG_THRESH, 917 vap->iv_fragthreshold); 918 919 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && 920 (vap->iv_flags & IEEE80211_F_HIDESSID)) { 921 /* 922 * bit 0 means hide SSID in beacons, 923 * bit 1 means don't respond to bcast probe req 924 */ 925 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); 926 } 927 928 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 929 (vap->iv_flags & IEEE80211_F_WPA) && 930 vap->iv_appie_wpa != NULL) 931 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); 932 933 wi_write_val(sc, WI_RID_PROMISC, 0); 934 935 /* Configure WEP. */ 936 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 937 wi_write_wep(sc, vap); 938 else 939 sc->sc_encryption = 0; 940 941 wi_enable(sc); /* enable port */ 942 WI_UNLOCK(sc); 943 } 944 return error; 945 } 946 947 static void 948 wi_start_locked(struct ifnet *ifp) 949 { 950 struct wi_softc *sc = ifp->if_softc; 951 struct ieee80211_node *ni; 952 struct ieee80211_frame *wh; 953 struct mbuf *m0; 954 struct ieee80211_key *k; 955 struct wi_frame frmhdr; 956 const struct llc *llc; 957 int cur; 958 959 WI_LOCK_ASSERT(sc); 960 961 if (sc->wi_gone) 962 return; 963 964 memset(&frmhdr, 0, sizeof(frmhdr)); 965 cur = sc->sc_txnext; 966 for (;;) { 967 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); 968 if (m0 == NULL) 969 break; 970 if (sc->sc_txd[cur].d_len != 0) { 971 IFQ_DRV_PREPEND(&ifp->if_snd, m0); 972 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 973 break; 974 } 975 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; 976 977 /* reconstruct 802.3 header */ 978 wh = mtod(m0, struct ieee80211_frame *); 979 switch (wh->i_fc[1]) { 980 case IEEE80211_FC1_DIR_TODS: 981 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 982 wh->i_addr2); 983 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 984 wh->i_addr3); 985 break; 986 case IEEE80211_FC1_DIR_NODS: 987 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 988 wh->i_addr2); 989 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 990 wh->i_addr1); 991 break; 992 case IEEE80211_FC1_DIR_FROMDS: 993 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 994 wh->i_addr3); 995 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 996 wh->i_addr1); 997 break; 998 } 999 llc = (const struct llc *)( 1000 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); 1001 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; 1002 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1003 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1004 k = ieee80211_crypto_encap(ni, m0); 1005 if (k == NULL) { 1006 ieee80211_free_node(ni); 1007 m_freem(m0); 1008 continue; 1009 } 1010 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1011 } 1012 1013 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 1014 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1015 ieee80211_radiotap_tx(ni->ni_vap, m0); 1016 } 1017 1018 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1019 (caddr_t)&frmhdr.wi_whdr); 1020 m_adj(m0, sizeof(struct ieee80211_frame)); 1021 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1022 ieee80211_free_node(ni); 1023 if (wi_start_tx(ifp, &frmhdr, m0)) 1024 continue; 1025 1026 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1027 ifp->if_opackets++; 1028 } 1029 } 1030 1031 static void 1032 wi_start(struct ifnet *ifp) 1033 { 1034 struct wi_softc *sc = ifp->if_softc; 1035 1036 WI_LOCK(sc); 1037 wi_start_locked(ifp); 1038 WI_UNLOCK(sc); 1039 } 1040 1041 static int 1042 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) 1043 { 1044 struct wi_softc *sc = ifp->if_softc; 1045 int cur = sc->sc_txnext; 1046 int fid, off, error; 1047 1048 fid = sc->sc_txd[cur].d_fid; 1049 off = sizeof(*frmhdr); 1050 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 1051 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; 1052 m_freem(m0); 1053 if (error) { 1054 ifp->if_oerrors++; 1055 return -1; 1056 } 1057 sc->sc_txd[cur].d_len = off; 1058 if (sc->sc_txcur == cur) { 1059 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1060 if_printf(ifp, "xmit failed\n"); 1061 sc->sc_txd[cur].d_len = 0; 1062 return -1; 1063 } 1064 sc->sc_tx_timer = 5; 1065 } 1066 return 0; 1067 } 1068 1069 static int 1070 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, 1071 const struct ieee80211_bpf_params *params) 1072 { 1073 struct ieee80211com *ic = ni->ni_ic; 1074 struct ifnet *ifp = ic->ic_ifp; 1075 struct ieee80211vap *vap = ni->ni_vap; 1076 struct wi_softc *sc = ifp->if_softc; 1077 struct ieee80211_key *k; 1078 struct ieee80211_frame *wh; 1079 struct wi_frame frmhdr; 1080 int cur; 1081 int rc = 0; 1082 1083 WI_LOCK(sc); 1084 1085 if (sc->wi_gone) { 1086 rc = ENETDOWN; 1087 goto out; 1088 } 1089 memset(&frmhdr, 0, sizeof(frmhdr)); 1090 cur = sc->sc_txnext; 1091 if (sc->sc_txd[cur].d_len != 0) { 1092 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1093 rc = ENOBUFS; 1094 goto out; 1095 } 1096 m0->m_pkthdr.rcvif = NULL; 1097 1098 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1099 (caddr_t)&frmhdr.wi_ehdr); 1100 frmhdr.wi_ehdr.ether_type = 0; 1101 wh = mtod(m0, struct ieee80211_frame *); 1102 1103 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1104 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) 1105 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1106 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) && 1107 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { 1108 k = ieee80211_crypto_encap(ni, m0); 1109 if (k == NULL) { 1110 rc = ENOMEM; 1111 goto out; 1112 } 1113 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1114 } 1115 if (ieee80211_radiotap_active_vap(vap)) { 1116 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1117 ieee80211_radiotap_tx(vap, m0); 1118 } 1119 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1120 (caddr_t)&frmhdr.wi_whdr); 1121 m_adj(m0, sizeof(struct ieee80211_frame)); 1122 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1123 if (wi_start_tx(ifp, &frmhdr, m0) < 0) { 1124 m0 = NULL; 1125 rc = EIO; 1126 goto out; 1127 } 1128 m0 = NULL; 1129 1130 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1131 out: 1132 WI_UNLOCK(sc); 1133 1134 if (m0 != NULL) 1135 m_freem(m0); 1136 ieee80211_free_node(ni); 1137 return rc; 1138 } 1139 1140 static int 1141 wi_reset(struct wi_softc *sc) 1142 { 1143 #define WI_INIT_TRIES 3 1144 int i, error = 0; 1145 1146 for (i = 0; i < WI_INIT_TRIES; i++) { 1147 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); 1148 if (error == 0) 1149 break; 1150 DELAY(WI_DELAY * 1000); 1151 } 1152 sc->sc_reset = 1; 1153 if (i == WI_INIT_TRIES) { 1154 if_printf(sc->sc_ifp, "reset failed\n"); 1155 return error; 1156 } 1157 1158 CSR_WRITE_2(sc, WI_INT_EN, 0); 1159 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 1160 1161 /* Calibrate timer. */ 1162 wi_write_val(sc, WI_RID_TICK_TIME, 8); 1163 1164 return 0; 1165 #undef WI_INIT_TRIES 1166 } 1167 1168 static void 1169 wi_watchdog(void *arg) 1170 { 1171 struct wi_softc *sc = arg; 1172 struct ifnet *ifp = sc->sc_ifp; 1173 1174 WI_LOCK_ASSERT(sc); 1175 1176 if (!sc->sc_enabled) 1177 return; 1178 1179 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 1180 if_printf(ifp, "device timeout\n"); 1181 ifp->if_oerrors++; 1182 wi_init_locked(ifp->if_softc); 1183 return; 1184 } 1185 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 1186 } 1187 1188 static int 1189 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1190 { 1191 struct wi_softc *sc = ifp->if_softc; 1192 struct ieee80211com *ic = ifp->if_l2com; 1193 struct ifreq *ifr = (struct ifreq *) data; 1194 int error = 0, startall = 0; 1195 1196 switch (cmd) { 1197 case SIOCSIFFLAGS: 1198 WI_LOCK(sc); 1199 /* 1200 * Can't do promisc and hostap at the same time. If all that's 1201 * changing is the promisc flag, try to short-circuit a call to 1202 * wi_init() by just setting PROMISC in the hardware. 1203 */ 1204 if (ifp->if_flags & IFF_UP) { 1205 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1206 ifp->if_drv_flags & IFF_DRV_RUNNING) { 1207 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { 1208 wi_write_val(sc, WI_RID_PROMISC, 1209 (ifp->if_flags & IFF_PROMISC) != 0); 1210 } else { 1211 wi_init_locked(sc); 1212 startall = 1; 1213 } 1214 } else { 1215 wi_init_locked(sc); 1216 startall = 1; 1217 } 1218 } else { 1219 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1220 wi_stop_locked(sc, 1); 1221 sc->wi_gone = 0; 1222 } 1223 sc->sc_if_flags = ifp->if_flags; 1224 WI_UNLOCK(sc); 1225 if (startall) 1226 ieee80211_start_all(ic); 1227 break; 1228 case SIOCGIFMEDIA: 1229 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1230 break; 1231 case SIOCGIFADDR: 1232 error = ether_ioctl(ifp, cmd, data); 1233 break; 1234 default: 1235 error = EINVAL; 1236 break; 1237 } 1238 return error; 1239 } 1240 1241 static void 1242 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1243 { 1244 struct ieee80211vap *vap = ifp->if_softc; 1245 struct ieee80211com *ic = vap->iv_ic; 1246 struct wi_softc *sc = ic->ic_ifp->if_softc; 1247 u_int16_t val; 1248 int rate, len; 1249 1250 len = sizeof(val); 1251 if (sc->sc_enabled && 1252 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && 1253 len == sizeof(val)) { 1254 /* convert to 802.11 rate */ 1255 val = le16toh(val); 1256 rate = val * 2; 1257 if (sc->sc_firmware_type == WI_LUCENT) { 1258 if (rate == 10) 1259 rate = 11; /* 5.5Mbps */ 1260 } else { 1261 if (rate == 4*2) 1262 rate = 11; /* 5.5Mbps */ 1263 else if (rate == 8*2) 1264 rate = 22; /* 11Mbps */ 1265 } 1266 vap->iv_bss->ni_txrate = rate; 1267 } 1268 ieee80211_media_status(ifp, imr); 1269 } 1270 1271 static void 1272 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1273 { 1274 struct ifnet *ifp = sc->sc_ifp; 1275 struct ieee80211com *ic = ifp->if_l2com; 1276 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1277 struct ieee80211_node *ni = vap->iv_bss; 1278 1279 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1280 return; 1281 1282 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid))); 1283 DPRINTF(("%s ?\n", ether_sprintf(new_bssid))); 1284 1285 /* In promiscuous mode, the BSSID field is not a reliable 1286 * indicator of the firmware's BSSID. Damp spurious 1287 * change-of-BSSID indications. 1288 */ 1289 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1290 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1291 WI_MAX_FALSE_SYNS)) 1292 return; 1293 1294 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1295 #if 0 1296 /* 1297 * XXX hack; we should create a new node with the new bssid 1298 * and replace the existing ic_bss with it but since we don't 1299 * process management frames to collect state we cheat by 1300 * reusing the existing node as we know wi_newstate will be 1301 * called and it will overwrite the node state. 1302 */ 1303 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1304 #endif 1305 } 1306 1307 static __noinline void 1308 wi_rx_intr(struct wi_softc *sc) 1309 { 1310 struct ifnet *ifp = sc->sc_ifp; 1311 struct ieee80211com *ic = ifp->if_l2com; 1312 struct wi_frame frmhdr; 1313 struct mbuf *m; 1314 struct ieee80211_frame *wh; 1315 struct ieee80211_node *ni; 1316 int fid, len, off; 1317 u_int8_t dir; 1318 u_int16_t status; 1319 int8_t rssi, nf; 1320 1321 fid = CSR_READ_2(sc, WI_RX_FID); 1322 1323 /* First read in the frame header */ 1324 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1325 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1326 ifp->if_ierrors++; 1327 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); 1328 return; 1329 } 1330 1331 /* 1332 * Drop undecryptable or packets with receive errors here 1333 */ 1334 status = le16toh(frmhdr.wi_status); 1335 if (status & WI_STAT_ERRSTAT) { 1336 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1337 ifp->if_ierrors++; 1338 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1339 return; 1340 } 1341 1342 len = le16toh(frmhdr.wi_dat_len); 1343 off = ALIGN(sizeof(struct ieee80211_frame)); 1344 1345 /* 1346 * Sometimes the PRISM2.x returns bogusly large frames. Except 1347 * in monitor mode, just throw them away. 1348 */ 1349 if (off + len > MCLBYTES) { 1350 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1351 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1352 ifp->if_ierrors++; 1353 DPRINTF(("wi_rx_intr: oversized packet\n")); 1354 return; 1355 } else 1356 len = 0; 1357 } 1358 1359 if (off + len > MHLEN) 1360 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1361 else 1362 m = m_gethdr(M_DONTWAIT, MT_DATA); 1363 if (m == NULL) { 1364 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1365 ifp->if_ierrors++; 1366 DPRINTF(("wi_rx_intr: MGET failed\n")); 1367 return; 1368 } 1369 m->m_data += off - sizeof(struct ieee80211_frame); 1370 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1371 wi_read_bap(sc, fid, sizeof(frmhdr), 1372 m->m_data + sizeof(struct ieee80211_frame), len); 1373 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1374 m->m_pkthdr.rcvif = ifp; 1375 1376 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1377 1378 rssi = frmhdr.wi_rx_signal; 1379 nf = frmhdr.wi_rx_silence; 1380 if (ieee80211_radiotap_active(ic)) { 1381 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; 1382 uint32_t rstamp; 1383 1384 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1385 le16toh(frmhdr.wi_rx_tstamp1); 1386 tap->wr_tsf = htole64((uint64_t)rstamp); 1387 /* XXX replace divide by table */ 1388 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1389 tap->wr_flags = 0; 1390 if (frmhdr.wi_status & WI_STAT_PCF) 1391 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1392 if (m->m_flags & M_WEP) 1393 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; 1394 tap->wr_antsignal = rssi; 1395 tap->wr_antnoise = nf; 1396 } 1397 1398 /* synchronize driver's BSSID with firmware's BSSID */ 1399 wh = mtod(m, struct ieee80211_frame *); 1400 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1401 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1402 wi_sync_bssid(sc, wh->i_addr3); 1403 1404 WI_UNLOCK(sc); 1405 1406 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1407 if (ni != NULL) { 1408 (void) ieee80211_input(ni, m, rssi, nf); 1409 ieee80211_free_node(ni); 1410 } else 1411 (void) ieee80211_input_all(ic, m, rssi, nf); 1412 1413 WI_LOCK(sc); 1414 } 1415 1416 static __noinline void 1417 wi_tx_ex_intr(struct wi_softc *sc) 1418 { 1419 struct ifnet *ifp = sc->sc_ifp; 1420 struct wi_frame frmhdr; 1421 int fid; 1422 1423 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1424 /* Read in the frame header */ 1425 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { 1426 u_int16_t status = le16toh(frmhdr.wi_status); 1427 /* 1428 * Spontaneous station disconnects appear as xmit 1429 * errors. Don't announce them and/or count them 1430 * as an output error. 1431 */ 1432 if ((status & WI_TXSTAT_DISCONNECT) == 0) { 1433 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1434 if_printf(ifp, "tx failed"); 1435 if (status & WI_TXSTAT_RET_ERR) 1436 printf(", retry limit exceeded"); 1437 if (status & WI_TXSTAT_AGED_ERR) 1438 printf(", max transmit lifetime exceeded"); 1439 if (status & WI_TXSTAT_DISCONNECT) 1440 printf(", port disconnected"); 1441 if (status & WI_TXSTAT_FORM_ERR) 1442 printf(", invalid format (data len %u src %6D)", 1443 le16toh(frmhdr.wi_dat_len), 1444 frmhdr.wi_ehdr.ether_shost, ":"); 1445 if (status & ~0xf) 1446 printf(", status=0x%x", status); 1447 printf("\n"); 1448 } 1449 ifp->if_oerrors++; 1450 } else { 1451 DPRINTF(("port disconnected\n")); 1452 ifp->if_collisions++; /* XXX */ 1453 } 1454 } else 1455 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); 1456 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); 1457 } 1458 1459 static __noinline void 1460 wi_tx_intr(struct wi_softc *sc) 1461 { 1462 struct ifnet *ifp = sc->sc_ifp; 1463 int fid, cur; 1464 1465 if (sc->wi_gone) 1466 return; 1467 1468 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1469 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1470 1471 cur = sc->sc_txcur; 1472 if (sc->sc_txd[cur].d_fid != fid) { 1473 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", 1474 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); 1475 return; 1476 } 1477 sc->sc_tx_timer = 0; 1478 sc->sc_txd[cur].d_len = 0; 1479 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; 1480 if (sc->sc_txd[cur].d_len == 0) 1481 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1482 else { 1483 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 1484 0, 0)) { 1485 if_printf(ifp, "xmit failed\n"); 1486 sc->sc_txd[cur].d_len = 0; 1487 } else { 1488 sc->sc_tx_timer = 5; 1489 } 1490 } 1491 } 1492 1493 static __noinline void 1494 wi_info_intr(struct wi_softc *sc) 1495 { 1496 struct ifnet *ifp = sc->sc_ifp; 1497 struct ieee80211com *ic = ifp->if_l2com; 1498 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1499 int i, fid, len, off; 1500 u_int16_t ltbuf[2]; 1501 u_int16_t stat; 1502 u_int32_t *ptr; 1503 1504 fid = CSR_READ_2(sc, WI_INFO_FID); 1505 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1506 1507 switch (le16toh(ltbuf[1])) { 1508 case WI_INFO_LINK_STAT: 1509 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1510 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1511 switch (le16toh(stat)) { 1512 case WI_INFO_LINK_STAT_CONNECTED: 1513 if (vap->iv_state == IEEE80211_S_RUN && 1514 vap->iv_opmode != IEEE80211_M_IBSS) 1515 break; 1516 /* fall thru... */ 1517 case WI_INFO_LINK_STAT_AP_CHG: 1518 IEEE80211_LOCK(ic); 1519 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ 1520 ieee80211_new_state(vap, IEEE80211_S_RUN, 0); 1521 IEEE80211_UNLOCK(ic); 1522 break; 1523 case WI_INFO_LINK_STAT_AP_INR: 1524 break; 1525 case WI_INFO_LINK_STAT_DISCONNECTED: 1526 /* we dropped off the net; e.g. due to deauth/disassoc */ 1527 IEEE80211_LOCK(ic); 1528 vap->iv_bss->ni_associd = 0; 1529 vap->iv_stats.is_rx_deauth++; 1530 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); 1531 IEEE80211_UNLOCK(ic); 1532 break; 1533 case WI_INFO_LINK_STAT_AP_OOR: 1534 /* XXX does this need to be per-vap? */ 1535 ieee80211_beacon_miss(ic); 1536 break; 1537 case WI_INFO_LINK_STAT_ASSOC_FAILED: 1538 if (vap->iv_opmode == IEEE80211_M_STA) 1539 ieee80211_new_state(vap, IEEE80211_S_SCAN, 1540 IEEE80211_SCAN_FAIL_TIMEOUT); 1541 break; 1542 } 1543 break; 1544 case WI_INFO_COUNTERS: 1545 /* some card versions have a larger stats structure */ 1546 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1547 ptr = (u_int32_t *)&sc->sc_stats; 1548 off = sizeof(ltbuf); 1549 for (i = 0; i < len; i++, off += 2, ptr++) { 1550 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1551 #ifdef WI_HERMES_STATS_WAR 1552 if (stat & 0xf000) 1553 stat = ~stat; 1554 #endif 1555 *ptr += stat; 1556 } 1557 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + 1558 sc->sc_stats.wi_tx_multi_retries + 1559 sc->sc_stats.wi_tx_retry_limit; 1560 break; 1561 default: 1562 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1563 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1564 break; 1565 } 1566 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); 1567 } 1568 1569 static int 1570 wi_write_multi(struct wi_softc *sc) 1571 { 1572 struct ifnet *ifp = sc->sc_ifp; 1573 int n; 1574 struct ifmultiaddr *ifma; 1575 struct wi_mcast mlist; 1576 1577 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1578 allmulti: 1579 memset(&mlist, 0, sizeof(mlist)); 1580 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1581 sizeof(mlist)); 1582 } 1583 1584 n = 0; 1585 if_maddr_rlock(ifp); 1586 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1587 if (ifma->ifma_addr->sa_family != AF_LINK) 1588 continue; 1589 if (n >= 16) 1590 goto allmulti; 1591 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], 1592 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); 1593 n++; 1594 } 1595 if_maddr_runlock(ifp); 1596 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1597 IEEE80211_ADDR_LEN * n); 1598 } 1599 1600 static void 1601 wi_update_mcast(struct ifnet *ifp) 1602 { 1603 wi_write_multi(ifp->if_softc); 1604 } 1605 1606 static void 1607 wi_update_promisc(struct ifnet *ifp) 1608 { 1609 struct wi_softc *sc = ifp->if_softc; 1610 struct ieee80211com *ic = ifp->if_l2com; 1611 1612 WI_LOCK(sc); 1613 /* XXX handle WEP special case handling? */ 1614 wi_write_val(sc, WI_RID_PROMISC, 1615 (ic->ic_opmode == IEEE80211_M_MONITOR || 1616 (ifp->if_flags & IFF_PROMISC))); 1617 WI_UNLOCK(sc); 1618 } 1619 1620 static void 1621 wi_read_nicid(struct wi_softc *sc) 1622 { 1623 struct wi_card_ident *id; 1624 char *p; 1625 int len; 1626 u_int16_t ver[4]; 1627 1628 /* getting chip identity */ 1629 memset(ver, 0, sizeof(ver)); 1630 len = sizeof(ver); 1631 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1632 1633 sc->sc_firmware_type = WI_NOTYPE; 1634 sc->sc_nic_id = le16toh(ver[0]); 1635 for (id = wi_card_ident; id->card_name != NULL; id++) { 1636 if (sc->sc_nic_id == id->card_id) { 1637 sc->sc_nic_name = id->card_name; 1638 sc->sc_firmware_type = id->firm_type; 1639 break; 1640 } 1641 } 1642 if (sc->sc_firmware_type == WI_NOTYPE) { 1643 if (sc->sc_nic_id & 0x8000) { 1644 sc->sc_firmware_type = WI_INTERSIL; 1645 sc->sc_nic_name = "Unknown Prism chip"; 1646 } else { 1647 sc->sc_firmware_type = WI_LUCENT; 1648 sc->sc_nic_name = "Unknown Lucent chip"; 1649 } 1650 } 1651 if (bootverbose) 1652 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); 1653 1654 /* get primary firmware version (Only Prism chips) */ 1655 if (sc->sc_firmware_type != WI_LUCENT) { 1656 memset(ver, 0, sizeof(ver)); 1657 len = sizeof(ver); 1658 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 1659 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 1660 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1661 } 1662 1663 /* get station firmware version */ 1664 memset(ver, 0, sizeof(ver)); 1665 len = sizeof(ver); 1666 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 1667 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 1668 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1669 if (sc->sc_firmware_type == WI_INTERSIL && 1670 (sc->sc_sta_firmware_ver == 10102 || 1671 sc->sc_sta_firmware_ver == 20102)) { 1672 char ident[12]; 1673 memset(ident, 0, sizeof(ident)); 1674 len = sizeof(ident); 1675 /* value should be the format like "V2.00-11" */ 1676 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 1677 *(p = (char *)ident) >= 'A' && 1678 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 1679 sc->sc_firmware_type = WI_SYMBOL; 1680 sc->sc_sta_firmware_ver = (p[1] - '') * 10000 + 1681 (p[3] - '') * 1000 + (p[4] - '') * 100 + 1682 (p[6] - '') * 10 + (p[7] - ''); 1683 } 1684 } 1685 if (bootverbose) { 1686 device_printf(sc->sc_dev, "%s Firmware: ", 1687 wi_firmware_names[sc->sc_firmware_type]); 1688 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 1689 printf("Primary (%u.%u.%u), ", 1690 sc->sc_pri_firmware_ver / 10000, 1691 (sc->sc_pri_firmware_ver % 10000) / 100, 1692 sc->sc_pri_firmware_ver % 100); 1693 printf("Station (%u.%u.%u)\n", 1694 sc->sc_sta_firmware_ver / 10000, 1695 (sc->sc_sta_firmware_ver % 10000) / 100, 1696 sc->sc_sta_firmware_ver % 100); 1697 } 1698 } 1699 1700 static int 1701 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 1702 { 1703 struct wi_ssid ssid; 1704 1705 if (buflen > IEEE80211_NWID_LEN) 1706 return ENOBUFS; 1707 memset(&ssid, 0, sizeof(ssid)); 1708 ssid.wi_len = htole16(buflen); 1709 memcpy(ssid.wi_ssid, buf, buflen); 1710 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 1711 } 1712 1713 static int 1714 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) 1715 { 1716 static const uint16_t lucent_rates[12] = { 1717 [ 0] = 3, /* auto */ 1718 [ 1] = 1, /* 1Mb/s */ 1719 [ 2] = 2, /* 2Mb/s */ 1720 [ 5] = 4, /* 5.5Mb/s */ 1721 [11] = 5 /* 11Mb/s */ 1722 }; 1723 static const uint16_t intersil_rates[12] = { 1724 [ 0] = 0xf, /* auto */ 1725 [ 1] = 0, /* 1Mb/s */ 1726 [ 2] = 1, /* 2Mb/s */ 1727 [ 5] = 2, /* 5.5Mb/s */ 1728 [11] = 3, /* 11Mb/s */ 1729 }; 1730 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? 1731 lucent_rates : intersil_rates; 1732 struct ieee80211com *ic = vap->iv_ic; 1733 const struct ieee80211_txparam *tp; 1734 1735 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 1736 return wi_write_val(sc, WI_RID_TX_RATE, 1737 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? 1738 rates[0] : rates[tp->ucastrate / 2])); 1739 } 1740 1741 static int 1742 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) 1743 { 1744 int error = 0; 1745 int i, keylen; 1746 u_int16_t val; 1747 struct wi_key wkey[IEEE80211_WEP_NKID]; 1748 1749 switch (sc->sc_firmware_type) { 1750 case WI_LUCENT: 1751 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 1752 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 1753 if (error) 1754 break; 1755 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) 1756 break; 1757 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); 1758 if (error) 1759 break; 1760 memset(wkey, 0, sizeof(wkey)); 1761 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1762 keylen = vap->iv_nw_keys[i].wk_keylen; 1763 wkey[i].wi_keylen = htole16(keylen); 1764 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, 1765 keylen); 1766 } 1767 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 1768 wkey, sizeof(wkey)); 1769 sc->sc_encryption = 0; 1770 break; 1771 1772 case WI_INTERSIL: 1773 val = HOST_ENCRYPT | HOST_DECRYPT; 1774 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 1775 /* 1776 * ONLY HWB3163 EVAL-CARD Firmware version 1777 * less than 0.8 variant2 1778 * 1779 * If promiscuous mode disable, Prism2 chip 1780 * does not work with WEP . 1781 * It is under investigation for details. 1782 * (ichiro@netbsd.org) 1783 */ 1784 if (sc->sc_sta_firmware_ver < 802 ) { 1785 /* firm ver < 0.8 variant 2 */ 1786 wi_write_val(sc, WI_RID_PROMISC, 1); 1787 } 1788 wi_write_val(sc, WI_RID_CNFAUTHMODE, 1789 vap->iv_bss->ni_authmode); 1790 val |= PRIVACY_INVOKED; 1791 } else { 1792 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); 1793 } 1794 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 1795 if (error) 1796 break; 1797 sc->sc_encryption = val; 1798 if ((val & PRIVACY_INVOKED) == 0) 1799 break; 1800 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); 1801 break; 1802 } 1803 return error; 1804 } 1805 1806 static int 1807 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 1808 { 1809 int i, s = 0; 1810 1811 if (sc->wi_gone) 1812 return (ENODEV); 1813 1814 /* wait for the busy bit to clear */ 1815 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ 1816 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 1817 break; 1818 DELAY(1*1000); /* 1ms */ 1819 } 1820 if (i == 0) { 1821 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", 1822 __func__, cmd); 1823 sc->wi_gone = 1; 1824 return(ETIMEDOUT); 1825 } 1826 1827 CSR_WRITE_2(sc, WI_PARAM0, val0); 1828 CSR_WRITE_2(sc, WI_PARAM1, val1); 1829 CSR_WRITE_2(sc, WI_PARAM2, val2); 1830 CSR_WRITE_2(sc, WI_COMMAND, cmd); 1831 1832 if (cmd == WI_CMD_INI) { 1833 /* XXX: should sleep here. */ 1834 DELAY(100*1000); /* 100ms delay for init */ 1835 } 1836 for (i = 0; i < WI_TIMEOUT; i++) { 1837 /* 1838 * Wait for 'command complete' bit to be 1839 * set in the event status register. 1840 */ 1841 s = CSR_READ_2(sc, WI_EVENT_STAT); 1842 if (s & WI_EV_CMD) { 1843 /* Ack the event and read result code. */ 1844 s = CSR_READ_2(sc, WI_STATUS); 1845 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1846 if (s & WI_STAT_CMD_RESULT) { 1847 return(EIO); 1848 } 1849 break; 1850 } 1851 DELAY(WI_DELAY); 1852 } 1853 1854 if (i == WI_TIMEOUT) { 1855 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " 1856 "event status 0x%04x\n", __func__, cmd, s); 1857 if (s == 0xffff) 1858 sc->wi_gone = 1; 1859 return(ETIMEDOUT); 1860 } 1861 return (0); 1862 } 1863 1864 static int 1865 wi_seek_bap(struct wi_softc *sc, int id, int off) 1866 { 1867 int i, status; 1868 1869 CSR_WRITE_2(sc, WI_SEL0, id); 1870 CSR_WRITE_2(sc, WI_OFF0, off); 1871 1872 for (i = 0; ; i++) { 1873 status = CSR_READ_2(sc, WI_OFF0); 1874 if ((status & WI_OFF_BUSY) == 0) 1875 break; 1876 if (i == WI_TIMEOUT) { 1877 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", 1878 __func__, id, off); 1879 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1880 if (status == 0xffff) 1881 sc->wi_gone = 1; 1882 return ETIMEDOUT; 1883 } 1884 DELAY(1); 1885 } 1886 if (status & WI_OFF_ERR) { 1887 device_printf(sc->sc_dev, "%s: error, id %x off %x\n", 1888 __func__, id, off); 1889 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1890 return EIO; 1891 } 1892 sc->sc_bap_id = id; 1893 sc->sc_bap_off = off; 1894 return 0; 1895 } 1896 1897 static int 1898 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1899 { 1900 u_int16_t *ptr; 1901 int i, error, cnt; 1902 1903 if (buflen == 0) 1904 return 0; 1905 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1906 if ((error = wi_seek_bap(sc, id, off)) != 0) 1907 return error; 1908 } 1909 cnt = (buflen + 1) / 2; 1910 ptr = (u_int16_t *)buf; 1911 for (i = 0; i < cnt; i++) 1912 *ptr++ = CSR_READ_2(sc, WI_DATA0); 1913 sc->sc_bap_off += cnt * 2; 1914 return 0; 1915 } 1916 1917 static int 1918 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1919 { 1920 u_int16_t *ptr; 1921 int i, error, cnt; 1922 1923 if (buflen == 0) 1924 return 0; 1925 1926 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1927 if ((error = wi_seek_bap(sc, id, off)) != 0) 1928 return error; 1929 } 1930 cnt = (buflen + 1) / 2; 1931 ptr = (u_int16_t *)buf; 1932 for (i = 0; i < cnt; i++) 1933 CSR_WRITE_2(sc, WI_DATA0, ptr[i]); 1934 sc->sc_bap_off += cnt * 2; 1935 1936 return 0; 1937 } 1938 1939 static int 1940 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 1941 { 1942 int error, len; 1943 struct mbuf *m; 1944 1945 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 1946 if (m->m_len == 0) 1947 continue; 1948 1949 len = min(m->m_len, totlen); 1950 1951 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 1952 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 1953 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 1954 totlen); 1955 } 1956 1957 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 1958 return error; 1959 1960 off += m->m_len; 1961 totlen -= len; 1962 } 1963 return 0; 1964 } 1965 1966 static int 1967 wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 1968 { 1969 int i; 1970 1971 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 1972 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", 1973 __func__, len); 1974 return ENOMEM; 1975 } 1976 1977 for (i = 0; i < WI_TIMEOUT; i++) { 1978 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 1979 break; 1980 DELAY(1); 1981 } 1982 if (i == WI_TIMEOUT) { 1983 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); 1984 return ETIMEDOUT; 1985 } 1986 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 1987 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1988 return 0; 1989 } 1990 1991 static int 1992 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 1993 { 1994 int error, len; 1995 u_int16_t ltbuf[2]; 1996 1997 /* Tell the NIC to enter record read mode. */ 1998 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 1999 if (error) 2000 return error; 2001 2002 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2003 if (error) 2004 return error; 2005 2006 if (le16toh(ltbuf[1]) != rid) { 2007 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 2008 rid, le16toh(ltbuf[1])); 2009 return EIO; 2010 } 2011 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 2012 if (*buflenp < len) { 2013 device_printf(sc->sc_dev, "record buffer is too small, " 2014 "rid=%x, size=%d, len=%d\n", 2015 rid, *buflenp, len); 2016 return ENOSPC; 2017 } 2018 *buflenp = len; 2019 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 2020 } 2021 2022 static int 2023 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 2024 { 2025 int error; 2026 u_int16_t ltbuf[2]; 2027 2028 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 2029 ltbuf[1] = htole16(rid); 2030 2031 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2032 if (error) { 2033 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", 2034 __func__, rid); 2035 return error; 2036 } 2037 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2038 if (error) { 2039 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", 2040 __func__, rid); 2041 return error; 2042 } 2043 2044 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2045 } 2046 2047 static int 2048 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) 2049 { 2050 /* NB: 42 bytes is probably ok to have on the stack */ 2051 char buf[sizeof(uint16_t) + 40]; 2052 2053 if (ie->ie_len > 40) 2054 return EINVAL; 2055 /* NB: firmware requires 16-bit ie length before ie data */ 2056 *(uint16_t *) buf = htole16(ie->ie_len); 2057 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); 2058 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); 2059 } 2060 2061 int 2062 wi_alloc(device_t dev, int rid) 2063 { 2064 struct wi_softc *sc = device_get_softc(dev); 2065 2066 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 2067 sc->iobase_rid = rid; 2068 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, 2069 &sc->iobase_rid, 0, ~0, (1 << 6), 2070 rman_make_alignment_flags(1 << 6) | RF_ACTIVE); 2071 if (sc->iobase == NULL) { 2072 device_printf(dev, "No I/O space?!\n"); 2073 return ENXIO; 2074 } 2075 2076 sc->wi_io_addr = rman_get_start(sc->iobase); 2077 sc->wi_btag = rman_get_bustag(sc->iobase); 2078 sc->wi_bhandle = rman_get_bushandle(sc->iobase); 2079 } else { 2080 sc->mem_rid = rid; 2081 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 2082 &sc->mem_rid, RF_ACTIVE); 2083 if (sc->mem == NULL) { 2084 device_printf(dev, "No Mem space on prism2.5?\n"); 2085 return ENXIO; 2086 } 2087 2088 sc->wi_btag = rman_get_bustag(sc->mem); 2089 sc->wi_bhandle = rman_get_bushandle(sc->mem); 2090 } 2091 2092 sc->irq_rid = 0; 2093 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 2094 RF_ACTIVE | 2095 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); 2096 if (sc->irq == NULL) { 2097 wi_free(dev); 2098 device_printf(dev, "No irq?!\n"); 2099 return ENXIO; 2100 } 2101 2102 sc->sc_dev = dev; 2103 sc->sc_unit = device_get_unit(dev); 2104 return 0; 2105 } 2106 2107 void 2108 wi_free(device_t dev) 2109 { 2110 struct wi_softc *sc = device_get_softc(dev); 2111 2112 if (sc->iobase != NULL) { 2113 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); 2114 sc->iobase = NULL; 2115 } 2116 if (sc->irq != NULL) { 2117 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 2118 sc->irq = NULL; 2119 } 2120 if (sc->mem != NULL) { 2121 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 2122 sc->mem = NULL; 2123 } 2124 }
Cache object: b37e02481925d1d3bb61558c4a3c3789
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]