if_wi.c revision 283537
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: head/sys/dev/wi/if_wi.c 283537 2015-05-25 18:50:26Z glebius $"); 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_var.h> 91#include <net/if_arp.h> 92#include <net/ethernet.h> 93#include <net/if_dl.h> 94#include <net/if_llc.h> 95#include <net/if_media.h> 96#include <net/if_types.h> 97 98#include <net80211/ieee80211_var.h> 99#include <net80211/ieee80211_ioctl.h> 100#include <net80211/ieee80211_radiotap.h> 101 102#include <netinet/in.h> 103#include <netinet/in_systm.h> 104#include <netinet/in_var.h> 105#include <netinet/ip.h> 106#include <netinet/if_ether.h> 107 108#include <net/bpf.h> 109 110#include <dev/wi/if_wavelan_ieee.h> 111#include <dev/wi/if_wireg.h> 112#include <dev/wi/if_wivar.h> 113 114static struct ieee80211vap *wi_vap_create(struct ieee80211com *, 115 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 116 const uint8_t [IEEE80211_ADDR_LEN], 117 const uint8_t [IEEE80211_ADDR_LEN]); 118static void wi_vap_delete(struct ieee80211vap *vap); 119static void wi_stop_locked(struct wi_softc *sc, int disable); 120static void wi_start_locked(struct ifnet *); 121static void wi_start(struct ifnet *); 122static int wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, 123 struct mbuf *m0); 124static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *, 125 const struct ieee80211_bpf_params *); 126static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int); 127static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state, 128 int); 129static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 130 int subtype, const struct ieee80211_rx_stats *rxs, 131 int rssi, int nf); 132static int wi_reset(struct wi_softc *); 133static void wi_watchdog(void *); 134static int wi_ioctl(struct ifnet *, u_long, caddr_t); 135static void wi_media_status(struct ifnet *, struct ifmediareq *); 136static uint64_t wi_get_counter(struct ifnet *, ift_counter); 137 138static void wi_rx_intr(struct wi_softc *); 139static void wi_tx_intr(struct wi_softc *); 140static void wi_tx_ex_intr(struct wi_softc *); 141 142static void wi_info_intr(struct wi_softc *); 143 144static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *); 145static int wi_write_wep(struct wi_softc *, struct ieee80211vap *); 146static int wi_write_multi(struct wi_softc *); 147static void wi_update_mcast(struct ifnet *); 148static void wi_update_promisc(struct ifnet *); 149static int wi_alloc_fid(struct wi_softc *, int, int *); 150static void wi_read_nicid(struct wi_softc *); 151static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); 152 153static int wi_cmd(struct wi_softc *, int, int, int, int); 154static int wi_seek_bap(struct wi_softc *, int, int); 155static int wi_read_bap(struct wi_softc *, int, int, void *, int); 156static int wi_write_bap(struct wi_softc *, int, int, void *, int); 157static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); 158static int wi_read_rid(struct wi_softc *, int, void *, int *); 159static int wi_write_rid(struct wi_softc *, int, void *, int); 160static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *); 161 162static void wi_scan_start(struct ieee80211com *); 163static void wi_scan_end(struct ieee80211com *); 164static void wi_set_channel(struct ieee80211com *); 165 166static __inline int 167wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) 168{ 169 170 val = htole16(val); 171 return wi_write_rid(sc, rid, &val, sizeof(val)); 172} 173 174static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, 175 "Wireless driver parameters"); 176 177static struct timeval lasttxerror; /* time of last tx error msg */ 178static int curtxeps; /* current tx error msgs/sec */ 179static int wi_txerate = 0; /* tx error rate: max msgs/sec */ 180SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate, 181 0, "max tx error msgs/sec; 0 to disable msgs"); 182 183#define WI_DEBUG 184#ifdef WI_DEBUG 185static int wi_debug = 0; 186SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug, 187 0, "control debugging printfs"); 188#define DPRINTF(X) if (wi_debug) printf X 189#else 190#define DPRINTF(X) 191#endif 192 193#define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO) 194 195struct wi_card_ident wi_card_ident[] = { 196 /* CARD_ID CARD_NAME FIRM_TYPE */ 197 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, 198 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, 199 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, 200 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, 201 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, 202 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, 203 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, 204 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, 205 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, 206 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, 207 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, 208 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, 209 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 210 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 211 { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 212 { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 213 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 214 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 215 { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 216 { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 217 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 218 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 219 { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 220 { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 221 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 222 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 223 { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 224 { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 225 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 226 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 227 { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 228 { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 229 { 0, NULL, 0 }, 230}; 231 232static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" }; 233 234devclass_t wi_devclass; 235 236int 237wi_attach(device_t dev) 238{ 239 struct wi_softc *sc = device_get_softc(dev); 240 struct ieee80211com *ic; 241 struct ifnet *ifp; 242 int i, nrates, buflen; 243 u_int16_t val; 244 u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE]; 245 struct ieee80211_rateset *rs; 246 struct sysctl_ctx_list *sctx; 247 struct sysctl_oid *soid; 248 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 249 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 250 }; 251 int error; 252 uint8_t macaddr[IEEE80211_ADDR_LEN]; 253 254 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 255 if (ifp == NULL) { 256 device_printf(dev, "can not if_alloc\n"); 257 wi_free(dev); 258 return ENOSPC; 259 } 260 ic = ifp->if_l2com; 261 262 sc->sc_firmware_type = WI_NOTYPE; 263 sc->wi_cmd_count = 500; 264 /* Reset the NIC. */ 265 if (wi_reset(sc) != 0) { 266 wi_free(dev); 267 return ENXIO; /* XXX */ 268 } 269 270 /* Read NIC identification */ 271 wi_read_nicid(sc); 272 switch (sc->sc_firmware_type) { 273 case WI_LUCENT: 274 if (sc->sc_sta_firmware_ver < 60006) 275 goto reject; 276 break; 277 case WI_INTERSIL: 278 if (sc->sc_sta_firmware_ver < 800) 279 goto reject; 280 break; 281 default: 282 reject: 283 device_printf(dev, "Sorry, this card is not supported " 284 "(type %d, firmware ver %d)\n", 285 sc->sc_firmware_type, sc->sc_sta_firmware_ver); 286 wi_free(dev); 287 return EOPNOTSUPP; 288 } 289 290 /* Export info about the device via sysctl */ 291 sctx = device_get_sysctl_ctx(dev); 292 soid = device_get_sysctl_tree(dev); 293 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 294 "firmware_type", CTLFLAG_RD, 295 wi_firmware_names[sc->sc_firmware_type], 0, 296 "Firmware type string"); 297 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version", 298 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0, 299 "Station Firmware version"); 300 if (sc->sc_firmware_type == WI_INTERSIL) 301 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 302 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0, 303 "Primary Firmware version"); 304 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id", 305 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id"); 306 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name", 307 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name"); 308 309 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 310 MTX_DEF | MTX_RECURSE); 311 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 312 313 /* 314 * Read the station address. 315 * And do it twice. I've seen PRISM-based cards that return 316 * an error when trying to read it the first time, which causes 317 * the probe to fail. 318 */ 319 buflen = IEEE80211_ADDR_LEN; 320 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 321 if (error != 0) { 322 buflen = IEEE80211_ADDR_LEN; 323 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 324 } 325 if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) { 326 if (error != 0) 327 device_printf(dev, "mac read failed %d\n", error); 328 else { 329 device_printf(dev, "mac read failed (all zeros)\n"); 330 error = ENXIO; 331 } 332 wi_free(dev); 333 return (error); 334 } 335 336 ifp->if_softc = sc; 337 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 338 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 339 ifp->if_ioctl = wi_ioctl; 340 ifp->if_start = wi_start; 341 ifp->if_init = wi_init; 342 ifp->if_get_counter = wi_get_counter; 343 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 344 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 345 IFQ_SET_READY(&ifp->if_snd); 346 347 ic->ic_ifp = ifp; 348 ic->ic_softc = sc; 349 ic->ic_name = device_get_nameunit(dev); 350 ic->ic_phytype = IEEE80211_T_DS; 351 ic->ic_opmode = IEEE80211_M_STA; 352 ic->ic_caps = IEEE80211_C_STA 353 | IEEE80211_C_PMGT 354 | IEEE80211_C_MONITOR 355 ; 356 357 /* 358 * Query the card for available channels and setup the 359 * channel table. We assume these are all 11b channels. 360 */ 361 buflen = sizeof(val); 362 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) 363 val = htole16(0x1fff); /* assume 1-11 */ 364 KASSERT(val != 0, ("wi_attach: no available channels listed!")); 365 366 val <<= 1; /* shift for base 1 indices */ 367 for (i = 1; i < 16; i++) { 368 struct ieee80211_channel *c; 369 370 if (!isset((u_int8_t*)&val, i)) 371 continue; 372 c = &ic->ic_channels[ic->ic_nchans++]; 373 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 374 c->ic_flags = IEEE80211_CHAN_B; 375 c->ic_ieee = i; 376 /* XXX txpowers? */ 377 } 378 379 /* 380 * Set flags based on firmware version. 381 */ 382 switch (sc->sc_firmware_type) { 383 case WI_LUCENT: 384 sc->sc_ntxbuf = 1; 385 ic->ic_caps |= IEEE80211_C_IBSS; 386 387 sc->sc_ibss_port = WI_PORTTYPE_BSS; 388 sc->sc_monitor_port = WI_PORTTYPE_ADHOC; 389 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; 390 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; 391 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 392 break; 393 case WI_INTERSIL: 394 sc->sc_ntxbuf = WI_NTXBUF; 395 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR 396 | WI_FLAGS_HAS_ROAMING; 397 /* 398 * Old firmware are slow, so give peace a chance. 399 */ 400 if (sc->sc_sta_firmware_ver < 10000) 401 sc->wi_cmd_count = 5000; 402 if (sc->sc_sta_firmware_ver > 10101) 403 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 404 ic->ic_caps |= IEEE80211_C_IBSS; 405 /* 406 * version 0.8.3 and newer are the only ones that are known 407 * to currently work. Earlier versions can be made to work, 408 * at least according to the Linux driver but we require 409 * monitor mode so this is irrelevant. 410 */ 411 ic->ic_caps |= IEEE80211_C_HOSTAP; 412 if (sc->sc_sta_firmware_ver >= 10603) 413 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; 414 if (sc->sc_sta_firmware_ver >= 10700) { 415 /* 416 * 1.7.0+ have the necessary support for sta mode WPA. 417 */ 418 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; 419 ic->ic_caps |= IEEE80211_C_WPA; 420 } 421 422 sc->sc_ibss_port = WI_PORTTYPE_IBSS; 423 sc->sc_monitor_port = WI_PORTTYPE_APSILENT; 424 sc->sc_min_rssi = WI_PRISM_MIN_RSSI; 425 sc->sc_max_rssi = WI_PRISM_MAX_RSSI; 426 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 427 break; 428 } 429 430 /* 431 * Find out if we support WEP on this card. 432 */ 433 buflen = sizeof(val); 434 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && 435 val != htole16(0)) 436 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; 437 438 /* Find supported rates. */ 439 buflen = sizeof(ratebuf); 440 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 441 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { 442 nrates = le16toh(*(u_int16_t *)ratebuf); 443 if (nrates > IEEE80211_RATE_MAXSIZE) 444 nrates = IEEE80211_RATE_MAXSIZE; 445 rs->rs_nrates = 0; 446 for (i = 0; i < nrates; i++) 447 if (ratebuf[2+i]) 448 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; 449 } else { 450 /* XXX fallback on error? */ 451 } 452 453 buflen = sizeof(val); 454 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 455 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { 456 sc->sc_dbm_offset = le16toh(val); 457 } 458 459 sc->sc_portnum = WI_DEFAULT_PORT; 460 461 ieee80211_ifattach(ic, macaddr); 462 ic->ic_raw_xmit = wi_raw_xmit; 463 ic->ic_scan_start = wi_scan_start; 464 ic->ic_scan_end = wi_scan_end; 465 ic->ic_set_channel = wi_set_channel; 466 467 ic->ic_vap_create = wi_vap_create; 468 ic->ic_vap_delete = wi_vap_delete; 469 ic->ic_update_mcast = wi_update_mcast; 470 ic->ic_update_promisc = wi_update_promisc; 471 472 ieee80211_radiotap_attach(ic, 473 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 474 WI_TX_RADIOTAP_PRESENT, 475 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 476 WI_RX_RADIOTAP_PRESENT); 477 478 if (bootverbose) 479 ieee80211_announce(ic); 480 481 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 482 NULL, wi_intr, sc, &sc->wi_intrhand); 483 if (error) { 484 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 485 ieee80211_ifdetach(ic); 486 if_free(sc->sc_ifp); 487 wi_free(dev); 488 return error; 489 } 490 491 return (0); 492} 493 494int 495wi_detach(device_t dev) 496{ 497 struct wi_softc *sc = device_get_softc(dev); 498 struct ifnet *ifp = sc->sc_ifp; 499 struct ieee80211com *ic = ifp->if_l2com; 500 501 WI_LOCK(sc); 502 503 /* check if device was removed */ 504 sc->wi_gone |= !bus_child_present(dev); 505 506 wi_stop_locked(sc, 0); 507 WI_UNLOCK(sc); 508 ieee80211_ifdetach(ic); 509 510 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); 511 if_free(sc->sc_ifp); 512 wi_free(dev); 513 mtx_destroy(&sc->sc_mtx); 514 return (0); 515} 516 517static struct ieee80211vap * 518wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 519 enum ieee80211_opmode opmode, int flags, 520 const uint8_t bssid[IEEE80211_ADDR_LEN], 521 const uint8_t mac[IEEE80211_ADDR_LEN]) 522{ 523 struct wi_softc *sc = ic->ic_ifp->if_softc; 524 struct wi_vap *wvp; 525 struct ieee80211vap *vap; 526 527 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 528 return NULL; 529 wvp = (struct wi_vap *) malloc(sizeof(struct wi_vap), 530 M_80211_VAP, M_NOWAIT | M_ZERO); 531 if (wvp == NULL) 532 return NULL; 533 534 vap = &wvp->wv_vap; 535 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 536 537 vap->iv_max_aid = WI_MAX_AID; 538 539 switch (opmode) { 540 case IEEE80211_M_STA: 541 sc->sc_porttype = WI_PORTTYPE_BSS; 542 wvp->wv_newstate = vap->iv_newstate; 543 vap->iv_newstate = wi_newstate_sta; 544 /* need to filter mgt frames to avoid confusing state machine */ 545 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 546 vap->iv_recv_mgmt = wi_recv_mgmt; 547 break; 548 case IEEE80211_M_IBSS: 549 sc->sc_porttype = sc->sc_ibss_port; 550 wvp->wv_newstate = vap->iv_newstate; 551 vap->iv_newstate = wi_newstate_sta; 552 break; 553 case IEEE80211_M_AHDEMO: 554 sc->sc_porttype = WI_PORTTYPE_ADHOC; 555 break; 556 case IEEE80211_M_HOSTAP: 557 sc->sc_porttype = WI_PORTTYPE_HOSTAP; 558 wvp->wv_newstate = vap->iv_newstate; 559 vap->iv_newstate = wi_newstate_hostap; 560 break; 561 case IEEE80211_M_MONITOR: 562 sc->sc_porttype = sc->sc_monitor_port; 563 break; 564 default: 565 break; 566 } 567 568 /* complete setup */ 569 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); 570 ic->ic_opmode = opmode; 571 return vap; 572} 573 574static void 575wi_vap_delete(struct ieee80211vap *vap) 576{ 577 struct wi_vap *wvp = WI_VAP(vap); 578 579 ieee80211_vap_detach(vap); 580 free(wvp, M_80211_VAP); 581} 582 583int 584wi_shutdown(device_t dev) 585{ 586 struct wi_softc *sc = device_get_softc(dev); 587 588 wi_stop(sc, 1); 589 return (0); 590} 591 592void 593wi_intr(void *arg) 594{ 595 struct wi_softc *sc = arg; 596 struct ifnet *ifp = sc->sc_ifp; 597 u_int16_t status; 598 599 WI_LOCK(sc); 600 601 if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { 602 CSR_WRITE_2(sc, WI_INT_EN, 0); 603 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 604 WI_UNLOCK(sc); 605 return; 606 } 607 608 /* Disable interrupts. */ 609 CSR_WRITE_2(sc, WI_INT_EN, 0); 610 611 status = CSR_READ_2(sc, WI_EVENT_STAT); 612 if (status & WI_EV_RX) 613 wi_rx_intr(sc); 614 if (status & WI_EV_ALLOC) 615 wi_tx_intr(sc); 616 if (status & WI_EV_TX_EXC) 617 wi_tx_ex_intr(sc); 618 if (status & WI_EV_INFO) 619 wi_info_intr(sc); 620 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 621 !IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 622 wi_start_locked(ifp); 623 624 /* Re-enable interrupts. */ 625 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 626 627 WI_UNLOCK(sc); 628 629 return; 630} 631 632static void 633wi_enable(struct wi_softc *sc) 634{ 635 /* Enable interrupts */ 636 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 637 638 /* enable port */ 639 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 640 sc->sc_enabled = 1; 641} 642 643static int 644wi_setup_locked(struct wi_softc *sc, int porttype, int mode, 645 uint8_t mac[IEEE80211_ADDR_LEN]) 646{ 647 int i; 648 649 wi_reset(sc); 650 651 wi_write_val(sc, WI_RID_PORTTYPE, porttype); 652 wi_write_val(sc, WI_RID_CREATE_IBSS, mode); 653 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); 654 /* XXX IEEE80211_BPF_NOACK wants 0 */ 655 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); 656 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 657 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ 658 659 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); 660 661 /* Allocate fids for the card */ 662 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 663 for (i = 0; i < sc->sc_ntxbuf; i++) { 664 int error = wi_alloc_fid(sc, sc->sc_buflen, 665 &sc->sc_txd[i].d_fid); 666 if (error) { 667 device_printf(sc->sc_dev, 668 "tx buffer allocation failed (error %u)\n", 669 error); 670 return error; 671 } 672 sc->sc_txd[i].d_len = 0; 673 } 674 sc->sc_txcur = sc->sc_txnext = 0; 675 676 return 0; 677} 678 679static void 680wi_init_locked(struct wi_softc *sc) 681{ 682 struct ifnet *ifp = sc->sc_ifp; 683 int wasenabled; 684 685 WI_LOCK_ASSERT(sc); 686 687 wasenabled = sc->sc_enabled; 688 if (wasenabled) 689 wi_stop_locked(sc, 1); 690 691 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { 692 if_printf(ifp, "interface not running\n"); 693 wi_stop_locked(sc, 1); 694 return; 695 } 696 697 ifp->if_drv_flags |= IFF_DRV_RUNNING; 698 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 699 700 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 701 702 wi_enable(sc); /* Enable desired port */ 703} 704 705void 706wi_init(void *arg) 707{ 708 struct wi_softc *sc = arg; 709 struct ifnet *ifp = sc->sc_ifp; 710 struct ieee80211com *ic = ifp->if_l2com; 711 712 WI_LOCK(sc); 713 wi_init_locked(sc); 714 WI_UNLOCK(sc); 715 716 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 717 ieee80211_start_all(ic); /* start all vap's */ 718} 719 720static void 721wi_stop_locked(struct wi_softc *sc, int disable) 722{ 723 struct ifnet *ifp = sc->sc_ifp; 724 725 WI_LOCK_ASSERT(sc); 726 727 if (sc->sc_enabled && !sc->wi_gone) { 728 CSR_WRITE_2(sc, WI_INT_EN, 0); 729 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 730 if (disable) 731 sc->sc_enabled = 0; 732 } else if (sc->wi_gone && disable) /* gone --> not enabled */ 733 sc->sc_enabled = 0; 734 735 callout_stop(&sc->sc_watchdog); 736 sc->sc_tx_timer = 0; 737 sc->sc_false_syns = 0; 738 739 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING); 740} 741 742void 743wi_stop(struct wi_softc *sc, int disable) 744{ 745 WI_LOCK(sc); 746 wi_stop_locked(sc, disable); 747 WI_UNLOCK(sc); 748} 749 750static void 751wi_set_channel(struct ieee80211com *ic) 752{ 753 struct ifnet *ifp = ic->ic_ifp; 754 struct wi_softc *sc = ifp->if_softc; 755 756 DPRINTF(("%s: channel %d, %sscanning\n", __func__, 757 ieee80211_chan2ieee(ic, ic->ic_curchan), 758 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); 759 760 WI_LOCK(sc); 761 wi_write_val(sc, WI_RID_OWN_CHNL, 762 ieee80211_chan2ieee(ic, ic->ic_curchan)); 763 WI_UNLOCK(sc); 764} 765 766static void 767wi_scan_start(struct ieee80211com *ic) 768{ 769 struct ifnet *ifp = ic->ic_ifp; 770 struct wi_softc *sc = ifp->if_softc; 771 struct ieee80211_scan_state *ss = ic->ic_scan; 772 773 DPRINTF(("%s\n", __func__)); 774 775 WI_LOCK(sc); 776 /* 777 * Switch device to monitor mode. 778 */ 779 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); 780 if (sc->sc_firmware_type == WI_INTERSIL) { 781 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 782 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 783 } 784 /* force full dwell time to compensate for firmware overhead */ 785 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); 786 WI_UNLOCK(sc); 787 788} 789 790static void 791wi_scan_end(struct ieee80211com *ic) 792{ 793 struct ifnet *ifp = ic->ic_ifp; 794 struct wi_softc *sc = ifp->if_softc; 795 796 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); 797 798 WI_LOCK(sc); 799 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); 800 if (sc->sc_firmware_type == WI_INTERSIL) { 801 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 802 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 803 } 804 WI_UNLOCK(sc); 805} 806 807static void 808wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 809 int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf) 810{ 811 struct ieee80211vap *vap = ni->ni_vap; 812 813 switch (subtype) { 814 case IEEE80211_FC0_SUBTYPE_AUTH: 815 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 816 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 817 /* NB: filter frames that trigger state changes */ 818 return; 819 } 820 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rxs, rssi, nf); 821} 822 823static int 824wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 825{ 826 struct ieee80211com *ic = vap->iv_ic; 827 struct ifnet *ifp = ic->ic_ifp; 828 struct ieee80211_node *bss; 829 struct wi_softc *sc = ifp->if_softc; 830 831 DPRINTF(("%s: %s -> %s\n", __func__, 832 ieee80211_state_name[vap->iv_state], 833 ieee80211_state_name[nstate])); 834 835 if (nstate == IEEE80211_S_AUTH) { 836 WI_LOCK(sc); 837 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); 838 839 if (vap->iv_flags & IEEE80211_F_PMGTON) { 840 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 841 wi_write_val(sc, WI_RID_PM_ENABLED, 1); 842 } 843 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 844 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 845 wi_write_val(sc, WI_RID_FRAG_THRESH, 846 vap->iv_fragthreshold); 847 wi_write_txrate(sc, vap); 848 849 bss = vap->iv_bss; 850 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); 851 wi_write_val(sc, WI_RID_OWN_CHNL, 852 ieee80211_chan2ieee(ic, bss->ni_chan)); 853 854 /* Configure WEP. */ 855 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 856 wi_write_wep(sc, vap); 857 else 858 sc->sc_encryption = 0; 859 860 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 861 (vap->iv_flags & IEEE80211_F_WPA)) { 862 wi_write_val(sc, WI_RID_WPA_HANDLING, 1); 863 if (vap->iv_appie_wpa != NULL) 864 wi_write_appie(sc, WI_RID_WPA_DATA, 865 vap->iv_appie_wpa); 866 } 867 868 wi_enable(sc); /* enable port */ 869 870 /* Lucent firmware does not support the JOIN RID. */ 871 if (sc->sc_firmware_type == WI_INTERSIL) { 872 struct wi_joinreq join; 873 874 memset(&join, 0, sizeof(join)); 875 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); 876 join.wi_chan = htole16( 877 ieee80211_chan2ieee(ic, bss->ni_chan)); 878 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 879 } 880 WI_UNLOCK(sc); 881 882 /* 883 * NB: don't go through 802.11 layer, it'll send auth frame; 884 * instead we drive the state machine from the link status 885 * notification we get on association. 886 */ 887 vap->iv_state = nstate; 888 return (0); 889 } 890 return WI_VAP(vap)->wv_newstate(vap, nstate, arg); 891} 892 893static int 894wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 895{ 896 struct ieee80211com *ic = vap->iv_ic; 897 struct ifnet *ifp = ic->ic_ifp; 898 struct ieee80211_node *bss; 899 struct wi_softc *sc = ifp->if_softc; 900 int error; 901 902 DPRINTF(("%s: %s -> %s\n", __func__, 903 ieee80211_state_name[vap->iv_state], 904 ieee80211_state_name[nstate])); 905 906 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); 907 if (error == 0 && nstate == IEEE80211_S_RUN) { 908 WI_LOCK(sc); 909 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); 910 911 bss = vap->iv_bss; 912 wi_write_ssid(sc, WI_RID_OWN_SSID, 913 bss->ni_essid, bss->ni_esslen); 914 wi_write_val(sc, WI_RID_OWN_CHNL, 915 ieee80211_chan2ieee(ic, bss->ni_chan)); 916 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); 917 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); 918 wi_write_txrate(sc, vap); 919 920 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); 921 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); 922 923 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 924 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 925 wi_write_val(sc, WI_RID_FRAG_THRESH, 926 vap->iv_fragthreshold); 927 928 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && 929 (vap->iv_flags & IEEE80211_F_HIDESSID)) { 930 /* 931 * bit 0 means hide SSID in beacons, 932 * bit 1 means don't respond to bcast probe req 933 */ 934 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); 935 } 936 937 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 938 (vap->iv_flags & IEEE80211_F_WPA) && 939 vap->iv_appie_wpa != NULL) 940 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); 941 942 wi_write_val(sc, WI_RID_PROMISC, 0); 943 944 /* Configure WEP. */ 945 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 946 wi_write_wep(sc, vap); 947 else 948 sc->sc_encryption = 0; 949 950 wi_enable(sc); /* enable port */ 951 WI_UNLOCK(sc); 952 } 953 return error; 954} 955 956static void 957wi_start_locked(struct ifnet *ifp) 958{ 959 struct wi_softc *sc = ifp->if_softc; 960 struct ieee80211_node *ni; 961 struct ieee80211_frame *wh; 962 struct mbuf *m0; 963 struct ieee80211_key *k; 964 struct wi_frame frmhdr; 965 const struct llc *llc; 966 int cur; 967 968 WI_LOCK_ASSERT(sc); 969 970 if (sc->wi_gone) 971 return; 972 973 memset(&frmhdr, 0, sizeof(frmhdr)); 974 cur = sc->sc_txnext; 975 for (;;) { 976 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); 977 if (m0 == NULL) 978 break; 979 if (sc->sc_txd[cur].d_len != 0) { 980 IFQ_DRV_PREPEND(&ifp->if_snd, m0); 981 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 982 break; 983 } 984 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; 985 986 /* reconstruct 802.3 header */ 987 wh = mtod(m0, struct ieee80211_frame *); 988 switch (wh->i_fc[1]) { 989 case IEEE80211_FC1_DIR_TODS: 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_addr3); 994 break; 995 case IEEE80211_FC1_DIR_NODS: 996 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 997 wh->i_addr2); 998 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 999 wh->i_addr1); 1000 break; 1001 case IEEE80211_FC1_DIR_FROMDS: 1002 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 1003 wh->i_addr3); 1004 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 1005 wh->i_addr1); 1006 break; 1007 } 1008 llc = (const struct llc *)( 1009 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); 1010 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; 1011 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1012 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1013 k = ieee80211_crypto_encap(ni, m0); 1014 if (k == NULL) { 1015 ieee80211_free_node(ni); 1016 m_freem(m0); 1017 continue; 1018 } 1019 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1020 } 1021 1022 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 1023 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1024 ieee80211_radiotap_tx(ni->ni_vap, m0); 1025 } 1026 1027 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1028 (caddr_t)&frmhdr.wi_whdr); 1029 m_adj(m0, sizeof(struct ieee80211_frame)); 1030 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1031 ieee80211_free_node(ni); 1032 if (wi_start_tx(ifp, &frmhdr, m0)) 1033 continue; 1034 1035 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1036 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 1037 } 1038} 1039 1040static void 1041wi_start(struct ifnet *ifp) 1042{ 1043 struct wi_softc *sc = ifp->if_softc; 1044 1045 WI_LOCK(sc); 1046 wi_start_locked(ifp); 1047 WI_UNLOCK(sc); 1048} 1049 1050static int 1051wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) 1052{ 1053 struct wi_softc *sc = ifp->if_softc; 1054 int cur = sc->sc_txnext; 1055 int fid, off, error; 1056 1057 fid = sc->sc_txd[cur].d_fid; 1058 off = sizeof(*frmhdr); 1059 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 1060 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; 1061 m_freem(m0); 1062 if (error) { 1063 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1064 return -1; 1065 } 1066 sc->sc_txd[cur].d_len = off; 1067 if (sc->sc_txcur == cur) { 1068 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1069 if_printf(ifp, "xmit failed\n"); 1070 sc->sc_txd[cur].d_len = 0; 1071 return -1; 1072 } 1073 sc->sc_tx_timer = 5; 1074 } 1075 return 0; 1076} 1077 1078static int 1079wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, 1080 const struct ieee80211_bpf_params *params) 1081{ 1082 struct ieee80211com *ic = ni->ni_ic; 1083 struct ifnet *ifp = ic->ic_ifp; 1084 struct ieee80211vap *vap = ni->ni_vap; 1085 struct wi_softc *sc = ifp->if_softc; 1086 struct ieee80211_key *k; 1087 struct ieee80211_frame *wh; 1088 struct wi_frame frmhdr; 1089 int cur; 1090 int rc = 0; 1091 1092 WI_LOCK(sc); 1093 1094 if (sc->wi_gone) { 1095 rc = ENETDOWN; 1096 goto out; 1097 } 1098 memset(&frmhdr, 0, sizeof(frmhdr)); 1099 cur = sc->sc_txnext; 1100 if (sc->sc_txd[cur].d_len != 0) { 1101 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1102 rc = ENOBUFS; 1103 goto out; 1104 } 1105 m0->m_pkthdr.rcvif = NULL; 1106 1107 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1108 (caddr_t)&frmhdr.wi_ehdr); 1109 frmhdr.wi_ehdr.ether_type = 0; 1110 wh = mtod(m0, struct ieee80211_frame *); 1111 1112 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1113 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) 1114 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1115 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1116 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { 1117 k = ieee80211_crypto_encap(ni, m0); 1118 if (k == NULL) { 1119 rc = ENOMEM; 1120 goto out; 1121 } 1122 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1123 } 1124 if (ieee80211_radiotap_active_vap(vap)) { 1125 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1126 ieee80211_radiotap_tx(vap, m0); 1127 } 1128 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1129 (caddr_t)&frmhdr.wi_whdr); 1130 m_adj(m0, sizeof(struct ieee80211_frame)); 1131 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1132 if (wi_start_tx(ifp, &frmhdr, m0) < 0) { 1133 m0 = NULL; 1134 rc = EIO; 1135 goto out; 1136 } 1137 m0 = NULL; 1138 1139 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1140out: 1141 WI_UNLOCK(sc); 1142 1143 if (m0 != NULL) 1144 m_freem(m0); 1145 ieee80211_free_node(ni); 1146 return rc; 1147} 1148 1149static int 1150wi_reset(struct wi_softc *sc) 1151{ 1152#define WI_INIT_TRIES 3 1153 int i, error = 0; 1154 1155 for (i = 0; i < WI_INIT_TRIES; i++) { 1156 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); 1157 if (error == 0) 1158 break; 1159 DELAY(WI_DELAY * 1000); 1160 } 1161 sc->sc_reset = 1; 1162 if (i == WI_INIT_TRIES) { 1163 if_printf(sc->sc_ifp, "reset failed\n"); 1164 return error; 1165 } 1166 1167 CSR_WRITE_2(sc, WI_INT_EN, 0); 1168 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 1169 1170 /* Calibrate timer. */ 1171 wi_write_val(sc, WI_RID_TICK_TIME, 8); 1172 1173 return 0; 1174#undef WI_INIT_TRIES 1175} 1176 1177static void 1178wi_watchdog(void *arg) 1179{ 1180 struct wi_softc *sc = arg; 1181 struct ifnet *ifp = sc->sc_ifp; 1182 1183 WI_LOCK_ASSERT(sc); 1184 1185 if (!sc->sc_enabled) 1186 return; 1187 1188 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 1189 if_printf(ifp, "device timeout\n"); 1190 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1191 wi_init_locked(ifp->if_softc); 1192 return; 1193 } 1194 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 1195} 1196 1197static int 1198wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1199{ 1200 struct wi_softc *sc = ifp->if_softc; 1201 struct ieee80211com *ic = ifp->if_l2com; 1202 struct ifreq *ifr = (struct ifreq *) data; 1203 int error = 0, startall = 0; 1204 1205 switch (cmd) { 1206 case SIOCSIFFLAGS: 1207 WI_LOCK(sc); 1208 /* 1209 * Can't do promisc and hostap at the same time. If all that's 1210 * changing is the promisc flag, try to short-circuit a call to 1211 * wi_init() by just setting PROMISC in the hardware. 1212 */ 1213 if (ifp->if_flags & IFF_UP) { 1214 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1215 ifp->if_drv_flags & IFF_DRV_RUNNING) { 1216 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { 1217 wi_write_val(sc, WI_RID_PROMISC, 1218 (ifp->if_flags & IFF_PROMISC) != 0); 1219 } else { 1220 wi_init_locked(sc); 1221 startall = 1; 1222 } 1223 } else { 1224 wi_init_locked(sc); 1225 startall = 1; 1226 } 1227 } else { 1228 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1229 wi_stop_locked(sc, 1); 1230 sc->wi_gone = 0; 1231 } 1232 sc->sc_if_flags = ifp->if_flags; 1233 WI_UNLOCK(sc); 1234 if (startall) 1235 ieee80211_start_all(ic); 1236 break; 1237 case SIOCGIFMEDIA: 1238 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1239 break; 1240 case SIOCGIFADDR: 1241 error = ether_ioctl(ifp, cmd, data); 1242 break; 1243 default: 1244 error = EINVAL; 1245 break; 1246 } 1247 return error; 1248} 1249 1250static void 1251wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1252{ 1253 struct ieee80211vap *vap = ifp->if_softc; 1254 struct ieee80211com *ic = vap->iv_ic; 1255 struct wi_softc *sc = ic->ic_ifp->if_softc; 1256 u_int16_t val; 1257 int rate, len; 1258 1259 len = sizeof(val); 1260 if (sc->sc_enabled && 1261 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && 1262 len == sizeof(val)) { 1263 /* convert to 802.11 rate */ 1264 val = le16toh(val); 1265 rate = val * 2; 1266 if (sc->sc_firmware_type == WI_LUCENT) { 1267 if (rate == 10) 1268 rate = 11; /* 5.5Mbps */ 1269 } else { 1270 if (rate == 4*2) 1271 rate = 11; /* 5.5Mbps */ 1272 else if (rate == 8*2) 1273 rate = 22; /* 11Mbps */ 1274 } 1275 vap->iv_bss->ni_txrate = rate; 1276 } 1277 ieee80211_media_status(ifp, imr); 1278} 1279 1280static void 1281wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1282{ 1283 struct ifnet *ifp = sc->sc_ifp; 1284 struct ieee80211com *ic = ifp->if_l2com; 1285 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1286 struct ieee80211_node *ni = vap->iv_bss; 1287 1288 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1289 return; 1290 1291 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid))); 1292 DPRINTF(("%s ?\n", ether_sprintf(new_bssid))); 1293 1294 /* In promiscuous mode, the BSSID field is not a reliable 1295 * indicator of the firmware's BSSID. Damp spurious 1296 * change-of-BSSID indications. 1297 */ 1298 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1299 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1300 WI_MAX_FALSE_SYNS)) 1301 return; 1302 1303 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1304#if 0 1305 /* 1306 * XXX hack; we should create a new node with the new bssid 1307 * and replace the existing ic_bss with it but since we don't 1308 * process management frames to collect state we cheat by 1309 * reusing the existing node as we know wi_newstate will be 1310 * called and it will overwrite the node state. 1311 */ 1312 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1313#endif 1314} 1315 1316static __noinline void 1317wi_rx_intr(struct wi_softc *sc) 1318{ 1319 struct ifnet *ifp = sc->sc_ifp; 1320 struct ieee80211com *ic = ifp->if_l2com; 1321 struct wi_frame frmhdr; 1322 struct mbuf *m; 1323 struct ieee80211_frame *wh; 1324 struct ieee80211_node *ni; 1325 int fid, len, off; 1326 u_int8_t dir; 1327 u_int16_t status; 1328 int8_t rssi, nf; 1329 1330 fid = CSR_READ_2(sc, WI_RX_FID); 1331 1332 /* First read in the frame header */ 1333 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1334 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1335 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1336 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); 1337 return; 1338 } 1339 1340 /* 1341 * Drop undecryptable or packets with receive errors here 1342 */ 1343 status = le16toh(frmhdr.wi_status); 1344 if (status & WI_STAT_ERRSTAT) { 1345 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1346 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1347 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1348 return; 1349 } 1350 1351 len = le16toh(frmhdr.wi_dat_len); 1352 off = ALIGN(sizeof(struct ieee80211_frame)); 1353 1354 /* 1355 * Sometimes the PRISM2.x returns bogusly large frames. Except 1356 * in monitor mode, just throw them away. 1357 */ 1358 if (off + len > MCLBYTES) { 1359 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1360 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1361 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1362 DPRINTF(("wi_rx_intr: oversized packet\n")); 1363 return; 1364 } else 1365 len = 0; 1366 } 1367 1368 if (off + len > MHLEN) 1369 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1370 else 1371 m = m_gethdr(M_NOWAIT, MT_DATA); 1372 if (m == NULL) { 1373 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1374 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1375 DPRINTF(("wi_rx_intr: MGET failed\n")); 1376 return; 1377 } 1378 m->m_data += off - sizeof(struct ieee80211_frame); 1379 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1380 wi_read_bap(sc, fid, sizeof(frmhdr), 1381 m->m_data + sizeof(struct ieee80211_frame), len); 1382 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1383 m->m_pkthdr.rcvif = ifp; 1384 1385 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1386 1387 rssi = frmhdr.wi_rx_signal; 1388 nf = frmhdr.wi_rx_silence; 1389 if (ieee80211_radiotap_active(ic)) { 1390 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; 1391 uint32_t rstamp; 1392 1393 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1394 le16toh(frmhdr.wi_rx_tstamp1); 1395 tap->wr_tsf = htole64((uint64_t)rstamp); 1396 /* XXX replace divide by table */ 1397 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1398 tap->wr_flags = 0; 1399 if (frmhdr.wi_status & WI_STAT_PCF) 1400 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1401 if (m->m_flags & M_WEP) 1402 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; 1403 tap->wr_antsignal = rssi; 1404 tap->wr_antnoise = nf; 1405 } 1406 1407 /* synchronize driver's BSSID with firmware's BSSID */ 1408 wh = mtod(m, struct ieee80211_frame *); 1409 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1410 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1411 wi_sync_bssid(sc, wh->i_addr3); 1412 1413 WI_UNLOCK(sc); 1414 1415 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1416 if (ni != NULL) { 1417 (void) ieee80211_input(ni, m, rssi, nf); 1418 ieee80211_free_node(ni); 1419 } else 1420 (void) ieee80211_input_all(ic, m, rssi, nf); 1421 1422 WI_LOCK(sc); 1423} 1424 1425static __noinline void 1426wi_tx_ex_intr(struct wi_softc *sc) 1427{ 1428 struct ifnet *ifp = sc->sc_ifp; 1429 struct wi_frame frmhdr; 1430 int fid; 1431 1432 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1433 /* Read in the frame header */ 1434 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { 1435 u_int16_t status = le16toh(frmhdr.wi_status); 1436 /* 1437 * Spontaneous station disconnects appear as xmit 1438 * errors. Don't announce them and/or count them 1439 * as an output error. 1440 */ 1441 if ((status & WI_TXSTAT_DISCONNECT) == 0) { 1442 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1443 if_printf(ifp, "tx failed"); 1444 if (status & WI_TXSTAT_RET_ERR) 1445 printf(", retry limit exceeded"); 1446 if (status & WI_TXSTAT_AGED_ERR) 1447 printf(", max transmit lifetime exceeded"); 1448 if (status & WI_TXSTAT_DISCONNECT) 1449 printf(", port disconnected"); 1450 if (status & WI_TXSTAT_FORM_ERR) 1451 printf(", invalid format (data len %u src %6D)", 1452 le16toh(frmhdr.wi_dat_len), 1453 frmhdr.wi_ehdr.ether_shost, ":"); 1454 if (status & ~0xf) 1455 printf(", status=0x%x", status); 1456 printf("\n"); 1457 } 1458 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1459 } else 1460 DPRINTF(("port disconnected\n")); 1461 } else 1462 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); 1463 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); 1464} 1465 1466static __noinline void 1467wi_tx_intr(struct wi_softc *sc) 1468{ 1469 struct ifnet *ifp = sc->sc_ifp; 1470 int fid, cur; 1471 1472 if (sc->wi_gone) 1473 return; 1474 1475 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1476 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1477 1478 cur = sc->sc_txcur; 1479 if (sc->sc_txd[cur].d_fid != fid) { 1480 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", 1481 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); 1482 return; 1483 } 1484 sc->sc_tx_timer = 0; 1485 sc->sc_txd[cur].d_len = 0; 1486 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; 1487 if (sc->sc_txd[cur].d_len == 0) 1488 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1489 else { 1490 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 1491 0, 0)) { 1492 if_printf(ifp, "xmit failed\n"); 1493 sc->sc_txd[cur].d_len = 0; 1494 } else { 1495 sc->sc_tx_timer = 5; 1496 } 1497 } 1498} 1499 1500static __noinline void 1501wi_info_intr(struct wi_softc *sc) 1502{ 1503 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 1504 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1505 int i, fid, len, off; 1506 u_int16_t ltbuf[2]; 1507 u_int16_t stat; 1508 u_int32_t *ptr; 1509 1510 fid = CSR_READ_2(sc, WI_INFO_FID); 1511 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1512 1513 switch (le16toh(ltbuf[1])) { 1514 case WI_INFO_LINK_STAT: 1515 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1516 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1517 1518 if (vap == NULL) 1519 goto finish; 1520 1521 switch (le16toh(stat)) { 1522 case WI_INFO_LINK_STAT_CONNECTED: 1523 if (vap->iv_state == IEEE80211_S_RUN && 1524 vap->iv_opmode != IEEE80211_M_IBSS) 1525 break; 1526 /* fall thru... */ 1527 case WI_INFO_LINK_STAT_AP_CHG: 1528 IEEE80211_LOCK(ic); 1529 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ 1530 ieee80211_new_state(vap, IEEE80211_S_RUN, 0); 1531 IEEE80211_UNLOCK(ic); 1532 break; 1533 case WI_INFO_LINK_STAT_AP_INR: 1534 break; 1535 case WI_INFO_LINK_STAT_DISCONNECTED: 1536 /* we dropped off the net; e.g. due to deauth/disassoc */ 1537 IEEE80211_LOCK(ic); 1538 vap->iv_bss->ni_associd = 0; 1539 vap->iv_stats.is_rx_deauth++; 1540 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); 1541 IEEE80211_UNLOCK(ic); 1542 break; 1543 case WI_INFO_LINK_STAT_AP_OOR: 1544 /* XXX does this need to be per-vap? */ 1545 ieee80211_beacon_miss(ic); 1546 break; 1547 case WI_INFO_LINK_STAT_ASSOC_FAILED: 1548 if (vap->iv_opmode == IEEE80211_M_STA) 1549 ieee80211_new_state(vap, IEEE80211_S_SCAN, 1550 IEEE80211_SCAN_FAIL_TIMEOUT); 1551 break; 1552 } 1553 break; 1554 case WI_INFO_COUNTERS: 1555 /* some card versions have a larger stats structure */ 1556 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1557 ptr = (u_int32_t *)&sc->sc_stats; 1558 off = sizeof(ltbuf); 1559 for (i = 0; i < len; i++, off += 2, ptr++) { 1560 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1561#ifdef WI_HERMES_STATS_WAR 1562 if (stat & 0xf000) 1563 stat = ~stat; 1564#endif 1565 *ptr += stat; 1566 } 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 } 1573finish: 1574 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); 1575} 1576 1577static uint64_t 1578wi_get_counter(struct ifnet *ifp, ift_counter cnt) 1579{ 1580 struct wi_softc *sc; 1581 1582 sc = if_getsoftc(ifp); 1583 1584 switch (cnt) { 1585 case IFCOUNTER_COLLISIONS: 1586 return (sc->sc_stats.wi_tx_single_retries + 1587 sc->sc_stats.wi_tx_multi_retries + 1588 sc->sc_stats.wi_tx_retry_limit); 1589 default: 1590 return (if_get_counter_default(ifp, cnt)); 1591 } 1592} 1593 1594static int 1595wi_write_multi(struct wi_softc *sc) 1596{ 1597 struct ifnet *ifp = sc->sc_ifp; 1598 int n; 1599 struct ifmultiaddr *ifma; 1600 struct wi_mcast mlist; 1601 1602 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1603allmulti: 1604 memset(&mlist, 0, sizeof(mlist)); 1605 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1606 sizeof(mlist)); 1607 } 1608 1609 n = 0; 1610 if_maddr_rlock(ifp); 1611 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1612 if (ifma->ifma_addr->sa_family != AF_LINK) 1613 continue; 1614 if (n >= 16) 1615 goto allmulti; 1616 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], 1617 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); 1618 n++; 1619 } 1620 if_maddr_runlock(ifp); 1621 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1622 IEEE80211_ADDR_LEN * n); 1623} 1624 1625static void 1626wi_update_mcast(struct ifnet *ifp) 1627{ 1628 wi_write_multi(ifp->if_softc); 1629} 1630 1631static void 1632wi_update_promisc(struct ifnet *ifp) 1633{ 1634 struct wi_softc *sc = ifp->if_softc; 1635 struct ieee80211com *ic = ifp->if_l2com; 1636 1637 WI_LOCK(sc); 1638 /* XXX handle WEP special case handling? */ 1639 wi_write_val(sc, WI_RID_PROMISC, 1640 (ic->ic_opmode == IEEE80211_M_MONITOR || 1641 (ifp->if_flags & IFF_PROMISC))); 1642 WI_UNLOCK(sc); 1643} 1644 1645static void 1646wi_read_nicid(struct wi_softc *sc) 1647{ 1648 struct wi_card_ident *id; 1649 char *p; 1650 int len; 1651 u_int16_t ver[4]; 1652 1653 /* getting chip identity */ 1654 memset(ver, 0, sizeof(ver)); 1655 len = sizeof(ver); 1656 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1657 1658 sc->sc_firmware_type = WI_NOTYPE; 1659 sc->sc_nic_id = le16toh(ver[0]); 1660 for (id = wi_card_ident; id->card_name != NULL; id++) { 1661 if (sc->sc_nic_id == id->card_id) { 1662 sc->sc_nic_name = id->card_name; 1663 sc->sc_firmware_type = id->firm_type; 1664 break; 1665 } 1666 } 1667 if (sc->sc_firmware_type == WI_NOTYPE) { 1668 if (sc->sc_nic_id & 0x8000) { 1669 sc->sc_firmware_type = WI_INTERSIL; 1670 sc->sc_nic_name = "Unknown Prism chip"; 1671 } else { 1672 sc->sc_firmware_type = WI_LUCENT; 1673 sc->sc_nic_name = "Unknown Lucent chip"; 1674 } 1675 } 1676 if (bootverbose) 1677 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); 1678 1679 /* get primary firmware version (Only Prism chips) */ 1680 if (sc->sc_firmware_type != WI_LUCENT) { 1681 memset(ver, 0, sizeof(ver)); 1682 len = sizeof(ver); 1683 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 1684 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 1685 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1686 } 1687 1688 /* get station firmware version */ 1689 memset(ver, 0, sizeof(ver)); 1690 len = sizeof(ver); 1691 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 1692 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 1693 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1694 if (sc->sc_firmware_type == WI_INTERSIL && 1695 (sc->sc_sta_firmware_ver == 10102 || 1696 sc->sc_sta_firmware_ver == 20102)) { 1697 char ident[12]; 1698 memset(ident, 0, sizeof(ident)); 1699 len = sizeof(ident); 1700 /* value should be the format like "V2.00-11" */ 1701 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 1702 *(p = (char *)ident) >= 'A' && 1703 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 1704 sc->sc_firmware_type = WI_SYMBOL; 1705 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + 1706 (p[3] - '0') * 1000 + (p[4] - '0') * 100 + 1707 (p[6] - '0') * 10 + (p[7] - '0'); 1708 } 1709 } 1710 if (bootverbose) { 1711 device_printf(sc->sc_dev, "%s Firmware: ", 1712 wi_firmware_names[sc->sc_firmware_type]); 1713 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 1714 printf("Primary (%u.%u.%u), ", 1715 sc->sc_pri_firmware_ver / 10000, 1716 (sc->sc_pri_firmware_ver % 10000) / 100, 1717 sc->sc_pri_firmware_ver % 100); 1718 printf("Station (%u.%u.%u)\n", 1719 sc->sc_sta_firmware_ver / 10000, 1720 (sc->sc_sta_firmware_ver % 10000) / 100, 1721 sc->sc_sta_firmware_ver % 100); 1722 } 1723} 1724 1725static int 1726wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 1727{ 1728 struct wi_ssid ssid; 1729 1730 if (buflen > IEEE80211_NWID_LEN) 1731 return ENOBUFS; 1732 memset(&ssid, 0, sizeof(ssid)); 1733 ssid.wi_len = htole16(buflen); 1734 memcpy(ssid.wi_ssid, buf, buflen); 1735 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 1736} 1737 1738static int 1739wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) 1740{ 1741 static const uint16_t lucent_rates[12] = { 1742 [ 0] = 3, /* auto */ 1743 [ 1] = 1, /* 1Mb/s */ 1744 [ 2] = 2, /* 2Mb/s */ 1745 [ 5] = 4, /* 5.5Mb/s */ 1746 [11] = 5 /* 11Mb/s */ 1747 }; 1748 static const uint16_t intersil_rates[12] = { 1749 [ 0] = 0xf, /* auto */ 1750 [ 1] = 0, /* 1Mb/s */ 1751 [ 2] = 1, /* 2Mb/s */ 1752 [ 5] = 2, /* 5.5Mb/s */ 1753 [11] = 3, /* 11Mb/s */ 1754 }; 1755 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? 1756 lucent_rates : intersil_rates; 1757 struct ieee80211com *ic = vap->iv_ic; 1758 const struct ieee80211_txparam *tp; 1759 1760 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 1761 return wi_write_val(sc, WI_RID_TX_RATE, 1762 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? 1763 rates[0] : rates[tp->ucastrate / 2])); 1764} 1765 1766static int 1767wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) 1768{ 1769 int error = 0; 1770 int i, keylen; 1771 u_int16_t val; 1772 struct wi_key wkey[IEEE80211_WEP_NKID]; 1773 1774 switch (sc->sc_firmware_type) { 1775 case WI_LUCENT: 1776 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 1777 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 1778 if (error) 1779 break; 1780 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) 1781 break; 1782 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); 1783 if (error) 1784 break; 1785 memset(wkey, 0, sizeof(wkey)); 1786 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1787 keylen = vap->iv_nw_keys[i].wk_keylen; 1788 wkey[i].wi_keylen = htole16(keylen); 1789 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, 1790 keylen); 1791 } 1792 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 1793 wkey, sizeof(wkey)); 1794 sc->sc_encryption = 0; 1795 break; 1796 1797 case WI_INTERSIL: 1798 val = HOST_ENCRYPT | HOST_DECRYPT; 1799 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 1800 /* 1801 * ONLY HWB3163 EVAL-CARD Firmware version 1802 * less than 0.8 variant2 1803 * 1804 * If promiscuous mode disable, Prism2 chip 1805 * does not work with WEP . 1806 * It is under investigation for details. 1807 * (ichiro@netbsd.org) 1808 */ 1809 if (sc->sc_sta_firmware_ver < 802 ) { 1810 /* firm ver < 0.8 variant 2 */ 1811 wi_write_val(sc, WI_RID_PROMISC, 1); 1812 } 1813 wi_write_val(sc, WI_RID_CNFAUTHMODE, 1814 vap->iv_bss->ni_authmode); 1815 val |= PRIVACY_INVOKED; 1816 } else { 1817 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); 1818 } 1819 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 1820 if (error) 1821 break; 1822 sc->sc_encryption = val; 1823 if ((val & PRIVACY_INVOKED) == 0) 1824 break; 1825 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); 1826 break; 1827 } 1828 return error; 1829} 1830 1831static int 1832wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 1833{ 1834 int i, s = 0; 1835 1836 if (sc->wi_gone) 1837 return (ENODEV); 1838 1839 /* wait for the busy bit to clear */ 1840 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ 1841 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 1842 break; 1843 DELAY(1*1000); /* 1ms */ 1844 } 1845 if (i == 0) { 1846 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", 1847 __func__, cmd); 1848 sc->wi_gone = 1; 1849 return(ETIMEDOUT); 1850 } 1851 1852 CSR_WRITE_2(sc, WI_PARAM0, val0); 1853 CSR_WRITE_2(sc, WI_PARAM1, val1); 1854 CSR_WRITE_2(sc, WI_PARAM2, val2); 1855 CSR_WRITE_2(sc, WI_COMMAND, cmd); 1856 1857 if (cmd == WI_CMD_INI) { 1858 /* XXX: should sleep here. */ 1859 DELAY(100*1000); /* 100ms delay for init */ 1860 } 1861 for (i = 0; i < WI_TIMEOUT; i++) { 1862 /* 1863 * Wait for 'command complete' bit to be 1864 * set in the event status register. 1865 */ 1866 s = CSR_READ_2(sc, WI_EVENT_STAT); 1867 if (s & WI_EV_CMD) { 1868 /* Ack the event and read result code. */ 1869 s = CSR_READ_2(sc, WI_STATUS); 1870 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1871 if (s & WI_STAT_CMD_RESULT) { 1872 return(EIO); 1873 } 1874 break; 1875 } 1876 DELAY(WI_DELAY); 1877 } 1878 1879 if (i == WI_TIMEOUT) { 1880 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " 1881 "event status 0x%04x\n", __func__, cmd, s); 1882 if (s == 0xffff) 1883 sc->wi_gone = 1; 1884 return(ETIMEDOUT); 1885 } 1886 return (0); 1887} 1888 1889static int 1890wi_seek_bap(struct wi_softc *sc, int id, int off) 1891{ 1892 int i, status; 1893 1894 CSR_WRITE_2(sc, WI_SEL0, id); 1895 CSR_WRITE_2(sc, WI_OFF0, off); 1896 1897 for (i = 0; ; i++) { 1898 status = CSR_READ_2(sc, WI_OFF0); 1899 if ((status & WI_OFF_BUSY) == 0) 1900 break; 1901 if (i == WI_TIMEOUT) { 1902 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", 1903 __func__, id, off); 1904 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1905 if (status == 0xffff) 1906 sc->wi_gone = 1; 1907 return ETIMEDOUT; 1908 } 1909 DELAY(1); 1910 } 1911 if (status & WI_OFF_ERR) { 1912 device_printf(sc->sc_dev, "%s: error, id %x off %x\n", 1913 __func__, id, off); 1914 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1915 return EIO; 1916 } 1917 sc->sc_bap_id = id; 1918 sc->sc_bap_off = off; 1919 return 0; 1920} 1921 1922static int 1923wi_read_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 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1930 if ((error = wi_seek_bap(sc, id, off)) != 0) 1931 return error; 1932 } 1933 cnt = (buflen + 1) / 2; 1934 CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 1935 sc->sc_bap_off += cnt * 2; 1936 return 0; 1937} 1938 1939static int 1940wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1941{ 1942 int error, cnt; 1943 1944 if (buflen == 0) 1945 return 0; 1946 1947 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1948 if ((error = wi_seek_bap(sc, id, off)) != 0) 1949 return error; 1950 } 1951 cnt = (buflen + 1) / 2; 1952 CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 1953 sc->sc_bap_off += cnt * 2; 1954 1955 return 0; 1956} 1957 1958static int 1959wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 1960{ 1961 int error, len; 1962 struct mbuf *m; 1963 1964 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 1965 if (m->m_len == 0) 1966 continue; 1967 1968 len = min(m->m_len, totlen); 1969 1970 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 1971 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 1972 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 1973 totlen); 1974 } 1975 1976 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 1977 return error; 1978 1979 off += m->m_len; 1980 totlen -= len; 1981 } 1982 return 0; 1983} 1984 1985static int 1986wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 1987{ 1988 int i; 1989 1990 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 1991 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", 1992 __func__, len); 1993 return ENOMEM; 1994 } 1995 1996 for (i = 0; i < WI_TIMEOUT; i++) { 1997 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 1998 break; 1999 DELAY(1); 2000 } 2001 if (i == WI_TIMEOUT) { 2002 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); 2003 return ETIMEDOUT; 2004 } 2005 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 2006 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 2007 return 0; 2008} 2009 2010static int 2011wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 2012{ 2013 int error, len; 2014 u_int16_t ltbuf[2]; 2015 2016 /* Tell the NIC to enter record read mode. */ 2017 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 2018 if (error) 2019 return error; 2020 2021 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2022 if (error) 2023 return error; 2024 2025 if (le16toh(ltbuf[1]) != rid) { 2026 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 2027 rid, le16toh(ltbuf[1])); 2028 return EIO; 2029 } 2030 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 2031 if (*buflenp < len) { 2032 device_printf(sc->sc_dev, "record buffer is too small, " 2033 "rid=%x, size=%d, len=%d\n", 2034 rid, *buflenp, len); 2035 return ENOSPC; 2036 } 2037 *buflenp = len; 2038 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 2039} 2040 2041static int 2042wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 2043{ 2044 int error; 2045 u_int16_t ltbuf[2]; 2046 2047 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 2048 ltbuf[1] = htole16(rid); 2049 2050 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2051 if (error) { 2052 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", 2053 __func__, rid); 2054 return error; 2055 } 2056 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2057 if (error) { 2058 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", 2059 __func__, rid); 2060 return error; 2061 } 2062 2063 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2064} 2065 2066static int 2067wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) 2068{ 2069 /* NB: 42 bytes is probably ok to have on the stack */ 2070 char buf[sizeof(uint16_t) + 40]; 2071 2072 if (ie->ie_len > 40) 2073 return EINVAL; 2074 /* NB: firmware requires 16-bit ie length before ie data */ 2075 *(uint16_t *) buf = htole16(ie->ie_len); 2076 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); 2077 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); 2078} 2079 2080int 2081wi_alloc(device_t dev, int rid) 2082{ 2083 struct wi_softc *sc = device_get_softc(dev); 2084 2085 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 2086 sc->iobase_rid = rid; 2087 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, 2088 &sc->iobase_rid, 0, ~0, (1 << 6), 2089 rman_make_alignment_flags(1 << 6) | RF_ACTIVE); 2090 if (sc->iobase == NULL) { 2091 device_printf(dev, "No I/O space?!\n"); 2092 return ENXIO; 2093 } 2094 2095 sc->wi_io_addr = rman_get_start(sc->iobase); 2096 sc->wi_btag = rman_get_bustag(sc->iobase); 2097 sc->wi_bhandle = rman_get_bushandle(sc->iobase); 2098 } else { 2099 sc->mem_rid = rid; 2100 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 2101 &sc->mem_rid, RF_ACTIVE); 2102 if (sc->mem == NULL) { 2103 device_printf(dev, "No Mem space on prism2.5?\n"); 2104 return ENXIO; 2105 } 2106 2107 sc->wi_btag = rman_get_bustag(sc->mem); 2108 sc->wi_bhandle = rman_get_bushandle(sc->mem); 2109 } 2110 2111 sc->irq_rid = 0; 2112 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 2113 RF_ACTIVE | 2114 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); 2115 if (sc->irq == NULL) { 2116 wi_free(dev); 2117 device_printf(dev, "No irq?!\n"); 2118 return ENXIO; 2119 } 2120 2121 sc->sc_dev = dev; 2122 sc->sc_unit = device_get_unit(dev); 2123 return 0; 2124} 2125 2126void 2127wi_free(device_t dev) 2128{ 2129 struct wi_softc *sc = device_get_softc(dev); 2130 2131 if (sc->iobase != NULL) { 2132 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); 2133 sc->iobase = NULL; 2134 } 2135 if (sc->irq != NULL) { 2136 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 2137 sc->irq = NULL; 2138 } 2139 if (sc->mem != NULL) { 2140 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 2141 sc->mem = NULL; 2142 } 2143} 2144