if_wi.c revision 260444
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 260444 2014-01-08 08:06:56Z kevlo $"); 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, int rssi, int nf); 131static int wi_reset(struct wi_softc *); 132static void wi_watchdog(void *); 133static int wi_ioctl(struct ifnet *, u_long, caddr_t); 134static void wi_media_status(struct ifnet *, struct ifmediareq *); 135 136static void wi_rx_intr(struct wi_softc *); 137static void wi_tx_intr(struct wi_softc *); 138static void wi_tx_ex_intr(struct wi_softc *); 139 140static void wi_info_intr(struct wi_softc *); 141 142static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *); 143static int wi_write_wep(struct wi_softc *, struct ieee80211vap *); 144static int wi_write_multi(struct wi_softc *); 145static void wi_update_mcast(struct ifnet *); 146static void wi_update_promisc(struct ifnet *); 147static int wi_alloc_fid(struct wi_softc *, int, int *); 148static void wi_read_nicid(struct wi_softc *); 149static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); 150 151static int wi_cmd(struct wi_softc *, int, int, int, int); 152static int wi_seek_bap(struct wi_softc *, int, int); 153static int wi_read_bap(struct wi_softc *, int, int, void *, int); 154static int wi_write_bap(struct wi_softc *, int, int, void *, int); 155static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); 156static int wi_read_rid(struct wi_softc *, int, void *, int *); 157static int wi_write_rid(struct wi_softc *, int, void *, int); 158static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *); 159 160static void wi_scan_start(struct ieee80211com *); 161static void wi_scan_end(struct ieee80211com *); 162static void wi_set_channel(struct ieee80211com *); 163 164static __inline int 165wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) 166{ 167 168 val = htole16(val); 169 return wi_write_rid(sc, rid, &val, sizeof(val)); 170} 171 172static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, 173 "Wireless driver parameters"); 174 175static struct timeval lasttxerror; /* time of last tx error msg */ 176static int curtxeps; /* current tx error msgs/sec */ 177static int wi_txerate = 0; /* tx error rate: max msgs/sec */ 178SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate, 179 0, "max tx error msgs/sec; 0 to disable msgs"); 180 181#define WI_DEBUG 182#ifdef WI_DEBUG 183static int wi_debug = 0; 184SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug, 185 0, "control debugging printfs"); 186#define DPRINTF(X) if (wi_debug) printf X 187#else 188#define DPRINTF(X) 189#endif 190 191#define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO) 192 193struct wi_card_ident wi_card_ident[] = { 194 /* CARD_ID CARD_NAME FIRM_TYPE */ 195 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, 196 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, 197 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, 198 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, 199 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, 200 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, 201 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, 202 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, 203 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, 204 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, 205 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, 206 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, 207 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 208 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 209 { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 210 { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, 211 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 212 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 213 { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 214 { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, 215 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 216 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 217 { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 218 { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, 219 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 220 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 221 { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 222 { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, 223 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 224 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 225 { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 226 { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, 227 { 0, NULL, 0 }, 228}; 229 230static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" }; 231 232devclass_t wi_devclass; 233 234int 235wi_attach(device_t dev) 236{ 237 struct wi_softc *sc = device_get_softc(dev); 238 struct ieee80211com *ic; 239 struct ifnet *ifp; 240 int i, nrates, buflen; 241 u_int16_t val; 242 u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE]; 243 struct ieee80211_rateset *rs; 244 struct sysctl_ctx_list *sctx; 245 struct sysctl_oid *soid; 246 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 247 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 248 }; 249 int error; 250 uint8_t macaddr[IEEE80211_ADDR_LEN]; 251 252 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 253 if (ifp == NULL) { 254 device_printf(dev, "can not if_alloc\n"); 255 wi_free(dev); 256 return ENOSPC; 257 } 258 ic = ifp->if_l2com; 259 260 sc->sc_firmware_type = WI_NOTYPE; 261 sc->wi_cmd_count = 500; 262 /* Reset the NIC. */ 263 if (wi_reset(sc) != 0) { 264 wi_free(dev); 265 return ENXIO; /* XXX */ 266 } 267 268 /* Read NIC identification */ 269 wi_read_nicid(sc); 270 switch (sc->sc_firmware_type) { 271 case WI_LUCENT: 272 if (sc->sc_sta_firmware_ver < 60006) 273 goto reject; 274 break; 275 case WI_INTERSIL: 276 if (sc->sc_sta_firmware_ver < 800) 277 goto reject; 278 break; 279 default: 280 reject: 281 device_printf(dev, "Sorry, this card is not supported " 282 "(type %d, firmware ver %d)\n", 283 sc->sc_firmware_type, sc->sc_sta_firmware_ver); 284 wi_free(dev); 285 return EOPNOTSUPP; 286 } 287 288 /* Export info about the device via sysctl */ 289 sctx = device_get_sysctl_ctx(dev); 290 soid = device_get_sysctl_tree(dev); 291 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 292 "firmware_type", CTLFLAG_RD, 293 wi_firmware_names[sc->sc_firmware_type], 0, 294 "Firmware type string"); 295 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version", 296 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0, 297 "Station Firmware version"); 298 if (sc->sc_firmware_type == WI_INTERSIL) 299 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, 300 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0, 301 "Primary Firmware version"); 302 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id", 303 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id"); 304 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name", 305 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name"); 306 307 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 308 MTX_DEF | MTX_RECURSE); 309 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 310 311 /* 312 * Read the station address. 313 * And do it twice. I've seen PRISM-based cards that return 314 * an error when trying to read it the first time, which causes 315 * the probe to fail. 316 */ 317 buflen = IEEE80211_ADDR_LEN; 318 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 319 if (error != 0) { 320 buflen = IEEE80211_ADDR_LEN; 321 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); 322 } 323 if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) { 324 if (error != 0) 325 device_printf(dev, "mac read failed %d\n", error); 326 else { 327 device_printf(dev, "mac read failed (all zeros)\n"); 328 error = ENXIO; 329 } 330 wi_free(dev); 331 return (error); 332 } 333 334 ifp->if_softc = sc; 335 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 336 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 337 ifp->if_ioctl = wi_ioctl; 338 ifp->if_start = wi_start; 339 ifp->if_init = wi_init; 340 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 341 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 342 IFQ_SET_READY(&ifp->if_snd); 343 344 ic->ic_ifp = ifp; 345 ic->ic_phytype = IEEE80211_T_DS; 346 ic->ic_opmode = IEEE80211_M_STA; 347 ic->ic_caps = IEEE80211_C_STA 348 | IEEE80211_C_PMGT 349 | IEEE80211_C_MONITOR 350 ; 351 352 /* 353 * Query the card for available channels and setup the 354 * channel table. We assume these are all 11b channels. 355 */ 356 buflen = sizeof(val); 357 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) 358 val = htole16(0x1fff); /* assume 1-11 */ 359 KASSERT(val != 0, ("wi_attach: no available channels listed!")); 360 361 val <<= 1; /* shift for base 1 indices */ 362 for (i = 1; i < 16; i++) { 363 struct ieee80211_channel *c; 364 365 if (!isset((u_int8_t*)&val, i)) 366 continue; 367 c = &ic->ic_channels[ic->ic_nchans++]; 368 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 369 c->ic_flags = IEEE80211_CHAN_B; 370 c->ic_ieee = i; 371 /* XXX txpowers? */ 372 } 373 374 /* 375 * Set flags based on firmware version. 376 */ 377 switch (sc->sc_firmware_type) { 378 case WI_LUCENT: 379 sc->sc_ntxbuf = 1; 380 ic->ic_caps |= IEEE80211_C_IBSS; 381 382 sc->sc_ibss_port = WI_PORTTYPE_BSS; 383 sc->sc_monitor_port = WI_PORTTYPE_ADHOC; 384 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; 385 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; 386 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; 387 break; 388 case WI_INTERSIL: 389 sc->sc_ntxbuf = WI_NTXBUF; 390 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR 391 | WI_FLAGS_HAS_ROAMING; 392 /* 393 * Old firmware are slow, so give peace a chance. 394 */ 395 if (sc->sc_sta_firmware_ver < 10000) 396 sc->wi_cmd_count = 5000; 397 if (sc->sc_sta_firmware_ver > 10101) 398 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; 399 ic->ic_caps |= IEEE80211_C_IBSS; 400 /* 401 * version 0.8.3 and newer are the only ones that are known 402 * to currently work. Earlier versions can be made to work, 403 * at least according to the Linux driver but we require 404 * monitor mode so this is irrelevant. 405 */ 406 ic->ic_caps |= IEEE80211_C_HOSTAP; 407 if (sc->sc_sta_firmware_ver >= 10603) 408 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; 409 if (sc->sc_sta_firmware_ver >= 10700) { 410 /* 411 * 1.7.0+ have the necessary support for sta mode WPA. 412 */ 413 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; 414 ic->ic_caps |= IEEE80211_C_WPA; 415 } 416 417 sc->sc_ibss_port = WI_PORTTYPE_IBSS; 418 sc->sc_monitor_port = WI_PORTTYPE_APSILENT; 419 sc->sc_min_rssi = WI_PRISM_MIN_RSSI; 420 sc->sc_max_rssi = WI_PRISM_MAX_RSSI; 421 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; 422 break; 423 } 424 425 /* 426 * Find out if we support WEP on this card. 427 */ 428 buflen = sizeof(val); 429 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && 430 val != htole16(0)) 431 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; 432 433 /* Find supported rates. */ 434 buflen = sizeof(ratebuf); 435 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; 436 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { 437 nrates = le16toh(*(u_int16_t *)ratebuf); 438 if (nrates > IEEE80211_RATE_MAXSIZE) 439 nrates = IEEE80211_RATE_MAXSIZE; 440 rs->rs_nrates = 0; 441 for (i = 0; i < nrates; i++) 442 if (ratebuf[2+i]) 443 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; 444 } else { 445 /* XXX fallback on error? */ 446 } 447 448 buflen = sizeof(val); 449 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && 450 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { 451 sc->sc_dbm_offset = le16toh(val); 452 } 453 454 sc->sc_portnum = WI_DEFAULT_PORT; 455 456 ieee80211_ifattach(ic, macaddr); 457 ic->ic_raw_xmit = wi_raw_xmit; 458 ic->ic_scan_start = wi_scan_start; 459 ic->ic_scan_end = wi_scan_end; 460 ic->ic_set_channel = wi_set_channel; 461 462 ic->ic_vap_create = wi_vap_create; 463 ic->ic_vap_delete = wi_vap_delete; 464 ic->ic_update_mcast = wi_update_mcast; 465 ic->ic_update_promisc = wi_update_promisc; 466 467 ieee80211_radiotap_attach(ic, 468 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 469 WI_TX_RADIOTAP_PRESENT, 470 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 471 WI_RX_RADIOTAP_PRESENT); 472 473 if (bootverbose) 474 ieee80211_announce(ic); 475 476 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 477 NULL, wi_intr, sc, &sc->wi_intrhand); 478 if (error) { 479 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 480 ieee80211_ifdetach(ic); 481 if_free(sc->sc_ifp); 482 wi_free(dev); 483 return error; 484 } 485 486 return (0); 487} 488 489int 490wi_detach(device_t dev) 491{ 492 struct wi_softc *sc = device_get_softc(dev); 493 struct ifnet *ifp = sc->sc_ifp; 494 struct ieee80211com *ic = ifp->if_l2com; 495 496 WI_LOCK(sc); 497 498 /* check if device was removed */ 499 sc->wi_gone |= !bus_child_present(dev); 500 501 wi_stop_locked(sc, 0); 502 WI_UNLOCK(sc); 503 ieee80211_ifdetach(ic); 504 505 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); 506 if_free(sc->sc_ifp); 507 wi_free(dev); 508 mtx_destroy(&sc->sc_mtx); 509 return (0); 510} 511 512static struct ieee80211vap * 513wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 514 enum ieee80211_opmode opmode, int flags, 515 const uint8_t bssid[IEEE80211_ADDR_LEN], 516 const uint8_t mac[IEEE80211_ADDR_LEN]) 517{ 518 struct wi_softc *sc = ic->ic_ifp->if_softc; 519 struct wi_vap *wvp; 520 struct ieee80211vap *vap; 521 522 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 523 return NULL; 524 wvp = (struct wi_vap *) malloc(sizeof(struct wi_vap), 525 M_80211_VAP, M_NOWAIT | M_ZERO); 526 if (wvp == NULL) 527 return NULL; 528 529 vap = &wvp->wv_vap; 530 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 531 532 vap->iv_max_aid = WI_MAX_AID; 533 534 switch (opmode) { 535 case IEEE80211_M_STA: 536 sc->sc_porttype = WI_PORTTYPE_BSS; 537 wvp->wv_newstate = vap->iv_newstate; 538 vap->iv_newstate = wi_newstate_sta; 539 /* need to filter mgt frames to avoid confusing state machine */ 540 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 541 vap->iv_recv_mgmt = wi_recv_mgmt; 542 break; 543 case IEEE80211_M_IBSS: 544 sc->sc_porttype = sc->sc_ibss_port; 545 wvp->wv_newstate = vap->iv_newstate; 546 vap->iv_newstate = wi_newstate_sta; 547 break; 548 case IEEE80211_M_AHDEMO: 549 sc->sc_porttype = WI_PORTTYPE_ADHOC; 550 break; 551 case IEEE80211_M_HOSTAP: 552 sc->sc_porttype = WI_PORTTYPE_HOSTAP; 553 wvp->wv_newstate = vap->iv_newstate; 554 vap->iv_newstate = wi_newstate_hostap; 555 break; 556 case IEEE80211_M_MONITOR: 557 sc->sc_porttype = sc->sc_monitor_port; 558 break; 559 default: 560 break; 561 } 562 563 /* complete setup */ 564 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); 565 ic->ic_opmode = opmode; 566 return vap; 567} 568 569static void 570wi_vap_delete(struct ieee80211vap *vap) 571{ 572 struct wi_vap *wvp = WI_VAP(vap); 573 574 ieee80211_vap_detach(vap); 575 free(wvp, M_80211_VAP); 576} 577 578int 579wi_shutdown(device_t dev) 580{ 581 struct wi_softc *sc = device_get_softc(dev); 582 583 wi_stop(sc, 1); 584 return (0); 585} 586 587void 588wi_intr(void *arg) 589{ 590 struct wi_softc *sc = arg; 591 struct ifnet *ifp = sc->sc_ifp; 592 u_int16_t status; 593 594 WI_LOCK(sc); 595 596 if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { 597 CSR_WRITE_2(sc, WI_INT_EN, 0); 598 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 599 WI_UNLOCK(sc); 600 return; 601 } 602 603 /* Disable interrupts. */ 604 CSR_WRITE_2(sc, WI_INT_EN, 0); 605 606 status = CSR_READ_2(sc, WI_EVENT_STAT); 607 if (status & WI_EV_RX) 608 wi_rx_intr(sc); 609 if (status & WI_EV_ALLOC) 610 wi_tx_intr(sc); 611 if (status & WI_EV_TX_EXC) 612 wi_tx_ex_intr(sc); 613 if (status & WI_EV_INFO) 614 wi_info_intr(sc); 615 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 616 !IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 617 wi_start_locked(ifp); 618 619 /* Re-enable interrupts. */ 620 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 621 622 WI_UNLOCK(sc); 623 624 return; 625} 626 627static void 628wi_enable(struct wi_softc *sc) 629{ 630 /* Enable interrupts */ 631 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); 632 633 /* enable port */ 634 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); 635 sc->sc_enabled = 1; 636} 637 638static int 639wi_setup_locked(struct wi_softc *sc, int porttype, int mode, 640 uint8_t mac[IEEE80211_ADDR_LEN]) 641{ 642 int i; 643 644 wi_reset(sc); 645 646 wi_write_val(sc, WI_RID_PORTTYPE, porttype); 647 wi_write_val(sc, WI_RID_CREATE_IBSS, mode); 648 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); 649 /* XXX IEEE80211_BPF_NOACK wants 0 */ 650 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); 651 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) 652 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ 653 654 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); 655 656 /* Allocate fids for the card */ 657 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); 658 for (i = 0; i < sc->sc_ntxbuf; i++) { 659 int error = wi_alloc_fid(sc, sc->sc_buflen, 660 &sc->sc_txd[i].d_fid); 661 if (error) { 662 device_printf(sc->sc_dev, 663 "tx buffer allocation failed (error %u)\n", 664 error); 665 return error; 666 } 667 sc->sc_txd[i].d_len = 0; 668 } 669 sc->sc_txcur = sc->sc_txnext = 0; 670 671 return 0; 672} 673 674static void 675wi_init_locked(struct wi_softc *sc) 676{ 677 struct ifnet *ifp = sc->sc_ifp; 678 int wasenabled; 679 680 WI_LOCK_ASSERT(sc); 681 682 wasenabled = sc->sc_enabled; 683 if (wasenabled) 684 wi_stop_locked(sc, 1); 685 686 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { 687 if_printf(ifp, "interface not running\n"); 688 wi_stop_locked(sc, 1); 689 return; 690 } 691 692 ifp->if_drv_flags |= IFF_DRV_RUNNING; 693 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 694 695 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 696 697 wi_enable(sc); /* Enable desired port */ 698} 699 700void 701wi_init(void *arg) 702{ 703 struct wi_softc *sc = arg; 704 struct ifnet *ifp = sc->sc_ifp; 705 struct ieee80211com *ic = ifp->if_l2com; 706 707 WI_LOCK(sc); 708 wi_init_locked(sc); 709 WI_UNLOCK(sc); 710 711 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 712 ieee80211_start_all(ic); /* start all vap's */ 713} 714 715static void 716wi_stop_locked(struct wi_softc *sc, int disable) 717{ 718 struct ifnet *ifp = sc->sc_ifp; 719 720 WI_LOCK_ASSERT(sc); 721 722 if (sc->sc_enabled && !sc->wi_gone) { 723 CSR_WRITE_2(sc, WI_INT_EN, 0); 724 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); 725 if (disable) 726 sc->sc_enabled = 0; 727 } else if (sc->wi_gone && disable) /* gone --> not enabled */ 728 sc->sc_enabled = 0; 729 730 callout_stop(&sc->sc_watchdog); 731 sc->sc_tx_timer = 0; 732 sc->sc_false_syns = 0; 733 734 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING); 735} 736 737void 738wi_stop(struct wi_softc *sc, int disable) 739{ 740 WI_LOCK(sc); 741 wi_stop_locked(sc, disable); 742 WI_UNLOCK(sc); 743} 744 745static void 746wi_set_channel(struct ieee80211com *ic) 747{ 748 struct ifnet *ifp = ic->ic_ifp; 749 struct wi_softc *sc = ifp->if_softc; 750 751 DPRINTF(("%s: channel %d, %sscanning\n", __func__, 752 ieee80211_chan2ieee(ic, ic->ic_curchan), 753 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); 754 755 WI_LOCK(sc); 756 wi_write_val(sc, WI_RID_OWN_CHNL, 757 ieee80211_chan2ieee(ic, ic->ic_curchan)); 758 WI_UNLOCK(sc); 759} 760 761static void 762wi_scan_start(struct ieee80211com *ic) 763{ 764 struct ifnet *ifp = ic->ic_ifp; 765 struct wi_softc *sc = ifp->if_softc; 766 struct ieee80211_scan_state *ss = ic->ic_scan; 767 768 DPRINTF(("%s\n", __func__)); 769 770 WI_LOCK(sc); 771 /* 772 * Switch device to monitor mode. 773 */ 774 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); 775 if (sc->sc_firmware_type == WI_INTERSIL) { 776 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 777 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 778 } 779 /* force full dwell time to compensate for firmware overhead */ 780 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); 781 WI_UNLOCK(sc); 782 783} 784 785static void 786wi_scan_end(struct ieee80211com *ic) 787{ 788 struct ifnet *ifp = ic->ic_ifp; 789 struct wi_softc *sc = ifp->if_softc; 790 791 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); 792 793 WI_LOCK(sc); 794 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); 795 if (sc->sc_firmware_type == WI_INTERSIL) { 796 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); 797 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); 798 } 799 WI_UNLOCK(sc); 800} 801 802static void 803wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, 804 int subtype, int rssi, int nf) 805{ 806 struct ieee80211vap *vap = ni->ni_vap; 807 808 switch (subtype) { 809 case IEEE80211_FC0_SUBTYPE_AUTH: 810 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: 811 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: 812 /* NB: filter frames that trigger state changes */ 813 return; 814 } 815 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); 816} 817 818static int 819wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 820{ 821 struct ieee80211com *ic = vap->iv_ic; 822 struct ifnet *ifp = ic->ic_ifp; 823 struct ieee80211_node *bss; 824 struct wi_softc *sc = ifp->if_softc; 825 826 DPRINTF(("%s: %s -> %s\n", __func__, 827 ieee80211_state_name[vap->iv_state], 828 ieee80211_state_name[nstate])); 829 830 if (nstate == IEEE80211_S_AUTH) { 831 WI_LOCK(sc); 832 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); 833 834 if (vap->iv_flags & IEEE80211_F_PMGTON) { 835 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); 836 wi_write_val(sc, WI_RID_PM_ENABLED, 1); 837 } 838 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 839 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 840 wi_write_val(sc, WI_RID_FRAG_THRESH, 841 vap->iv_fragthreshold); 842 wi_write_txrate(sc, vap); 843 844 bss = vap->iv_bss; 845 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); 846 wi_write_val(sc, WI_RID_OWN_CHNL, 847 ieee80211_chan2ieee(ic, bss->ni_chan)); 848 849 /* Configure WEP. */ 850 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 851 wi_write_wep(sc, vap); 852 else 853 sc->sc_encryption = 0; 854 855 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 856 (vap->iv_flags & IEEE80211_F_WPA)) { 857 wi_write_val(sc, WI_RID_WPA_HANDLING, 1); 858 if (vap->iv_appie_wpa != NULL) 859 wi_write_appie(sc, WI_RID_WPA_DATA, 860 vap->iv_appie_wpa); 861 } 862 863 wi_enable(sc); /* enable port */ 864 865 /* Lucent firmware does not support the JOIN RID. */ 866 if (sc->sc_firmware_type == WI_INTERSIL) { 867 struct wi_joinreq join; 868 869 memset(&join, 0, sizeof(join)); 870 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); 871 join.wi_chan = htole16( 872 ieee80211_chan2ieee(ic, bss->ni_chan)); 873 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); 874 } 875 WI_UNLOCK(sc); 876 877 /* 878 * NB: don't go through 802.11 layer, it'll send auth frame; 879 * instead we drive the state machine from the link status 880 * notification we get on association. 881 */ 882 vap->iv_state = nstate; 883 return (0); 884 } 885 return WI_VAP(vap)->wv_newstate(vap, nstate, arg); 886} 887 888static int 889wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 890{ 891 struct ieee80211com *ic = vap->iv_ic; 892 struct ifnet *ifp = ic->ic_ifp; 893 struct ieee80211_node *bss; 894 struct wi_softc *sc = ifp->if_softc; 895 int error; 896 897 DPRINTF(("%s: %s -> %s\n", __func__, 898 ieee80211_state_name[vap->iv_state], 899 ieee80211_state_name[nstate])); 900 901 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); 902 if (error == 0 && nstate == IEEE80211_S_RUN) { 903 WI_LOCK(sc); 904 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); 905 906 bss = vap->iv_bss; 907 wi_write_ssid(sc, WI_RID_OWN_SSID, 908 bss->ni_essid, bss->ni_esslen); 909 wi_write_val(sc, WI_RID_OWN_CHNL, 910 ieee80211_chan2ieee(ic, bss->ni_chan)); 911 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); 912 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); 913 wi_write_txrate(sc, vap); 914 915 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); 916 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); 917 918 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); 919 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) 920 wi_write_val(sc, WI_RID_FRAG_THRESH, 921 vap->iv_fragthreshold); 922 923 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && 924 (vap->iv_flags & IEEE80211_F_HIDESSID)) { 925 /* 926 * bit 0 means hide SSID in beacons, 927 * bit 1 means don't respond to bcast probe req 928 */ 929 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); 930 } 931 932 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && 933 (vap->iv_flags & IEEE80211_F_WPA) && 934 vap->iv_appie_wpa != NULL) 935 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); 936 937 wi_write_val(sc, WI_RID_PROMISC, 0); 938 939 /* Configure WEP. */ 940 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) 941 wi_write_wep(sc, vap); 942 else 943 sc->sc_encryption = 0; 944 945 wi_enable(sc); /* enable port */ 946 WI_UNLOCK(sc); 947 } 948 return error; 949} 950 951static void 952wi_start_locked(struct ifnet *ifp) 953{ 954 struct wi_softc *sc = ifp->if_softc; 955 struct ieee80211_node *ni; 956 struct ieee80211_frame *wh; 957 struct mbuf *m0; 958 struct ieee80211_key *k; 959 struct wi_frame frmhdr; 960 const struct llc *llc; 961 int cur; 962 963 WI_LOCK_ASSERT(sc); 964 965 if (sc->wi_gone) 966 return; 967 968 memset(&frmhdr, 0, sizeof(frmhdr)); 969 cur = sc->sc_txnext; 970 for (;;) { 971 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); 972 if (m0 == NULL) 973 break; 974 if (sc->sc_txd[cur].d_len != 0) { 975 IFQ_DRV_PREPEND(&ifp->if_snd, m0); 976 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 977 break; 978 } 979 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; 980 981 /* reconstruct 802.3 header */ 982 wh = mtod(m0, struct ieee80211_frame *); 983 switch (wh->i_fc[1]) { 984 case IEEE80211_FC1_DIR_TODS: 985 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 986 wh->i_addr2); 987 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 988 wh->i_addr3); 989 break; 990 case IEEE80211_FC1_DIR_NODS: 991 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 992 wh->i_addr2); 993 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 994 wh->i_addr1); 995 break; 996 case IEEE80211_FC1_DIR_FROMDS: 997 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, 998 wh->i_addr3); 999 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, 1000 wh->i_addr1); 1001 break; 1002 } 1003 llc = (const struct llc *)( 1004 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); 1005 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; 1006 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1007 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1008 k = ieee80211_crypto_encap(ni, m0); 1009 if (k == NULL) { 1010 ieee80211_free_node(ni); 1011 m_freem(m0); 1012 continue; 1013 } 1014 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1015 } 1016 1017 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 1018 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1019 ieee80211_radiotap_tx(ni->ni_vap, m0); 1020 } 1021 1022 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1023 (caddr_t)&frmhdr.wi_whdr); 1024 m_adj(m0, sizeof(struct ieee80211_frame)); 1025 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1026 ieee80211_free_node(ni); 1027 if (wi_start_tx(ifp, &frmhdr, m0)) 1028 continue; 1029 1030 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1031 ifp->if_opackets++; 1032 } 1033} 1034 1035static void 1036wi_start(struct ifnet *ifp) 1037{ 1038 struct wi_softc *sc = ifp->if_softc; 1039 1040 WI_LOCK(sc); 1041 wi_start_locked(ifp); 1042 WI_UNLOCK(sc); 1043} 1044 1045static int 1046wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) 1047{ 1048 struct wi_softc *sc = ifp->if_softc; 1049 int cur = sc->sc_txnext; 1050 int fid, off, error; 1051 1052 fid = sc->sc_txd[cur].d_fid; 1053 off = sizeof(*frmhdr); 1054 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 1055 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; 1056 m_freem(m0); 1057 if (error) { 1058 ifp->if_oerrors++; 1059 return -1; 1060 } 1061 sc->sc_txd[cur].d_len = off; 1062 if (sc->sc_txcur == cur) { 1063 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { 1064 if_printf(ifp, "xmit failed\n"); 1065 sc->sc_txd[cur].d_len = 0; 1066 return -1; 1067 } 1068 sc->sc_tx_timer = 5; 1069 } 1070 return 0; 1071} 1072 1073static int 1074wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, 1075 const struct ieee80211_bpf_params *params) 1076{ 1077 struct ieee80211com *ic = ni->ni_ic; 1078 struct ifnet *ifp = ic->ic_ifp; 1079 struct ieee80211vap *vap = ni->ni_vap; 1080 struct wi_softc *sc = ifp->if_softc; 1081 struct ieee80211_key *k; 1082 struct ieee80211_frame *wh; 1083 struct wi_frame frmhdr; 1084 int cur; 1085 int rc = 0; 1086 1087 WI_LOCK(sc); 1088 1089 if (sc->wi_gone) { 1090 rc = ENETDOWN; 1091 goto out; 1092 } 1093 memset(&frmhdr, 0, sizeof(frmhdr)); 1094 cur = sc->sc_txnext; 1095 if (sc->sc_txd[cur].d_len != 0) { 1096 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1097 rc = ENOBUFS; 1098 goto out; 1099 } 1100 m0->m_pkthdr.rcvif = NULL; 1101 1102 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, 1103 (caddr_t)&frmhdr.wi_ehdr); 1104 frmhdr.wi_ehdr.ether_type = 0; 1105 wh = mtod(m0, struct ieee80211_frame *); 1106 1107 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); 1108 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) 1109 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); 1110 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1111 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { 1112 k = ieee80211_crypto_encap(ni, m0); 1113 if (k == NULL) { 1114 rc = ENOMEM; 1115 goto out; 1116 } 1117 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); 1118 } 1119 if (ieee80211_radiotap_active_vap(vap)) { 1120 sc->sc_tx_th.wt_rate = ni->ni_txrate; 1121 ieee80211_radiotap_tx(vap, m0); 1122 } 1123 m_copydata(m0, 0, sizeof(struct ieee80211_frame), 1124 (caddr_t)&frmhdr.wi_whdr); 1125 m_adj(m0, sizeof(struct ieee80211_frame)); 1126 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); 1127 if (wi_start_tx(ifp, &frmhdr, m0) < 0) { 1128 m0 = NULL; 1129 rc = EIO; 1130 goto out; 1131 } 1132 m0 = NULL; 1133 1134 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; 1135out: 1136 WI_UNLOCK(sc); 1137 1138 if (m0 != NULL) 1139 m_freem(m0); 1140 ieee80211_free_node(ni); 1141 return rc; 1142} 1143 1144static int 1145wi_reset(struct wi_softc *sc) 1146{ 1147#define WI_INIT_TRIES 3 1148 int i, error = 0; 1149 1150 for (i = 0; i < WI_INIT_TRIES; i++) { 1151 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); 1152 if (error == 0) 1153 break; 1154 DELAY(WI_DELAY * 1000); 1155 } 1156 sc->sc_reset = 1; 1157 if (i == WI_INIT_TRIES) { 1158 if_printf(sc->sc_ifp, "reset failed\n"); 1159 return error; 1160 } 1161 1162 CSR_WRITE_2(sc, WI_INT_EN, 0); 1163 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 1164 1165 /* Calibrate timer. */ 1166 wi_write_val(sc, WI_RID_TICK_TIME, 8); 1167 1168 return 0; 1169#undef WI_INIT_TRIES 1170} 1171 1172static void 1173wi_watchdog(void *arg) 1174{ 1175 struct wi_softc *sc = arg; 1176 struct ifnet *ifp = sc->sc_ifp; 1177 1178 WI_LOCK_ASSERT(sc); 1179 1180 if (!sc->sc_enabled) 1181 return; 1182 1183 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { 1184 if_printf(ifp, "device timeout\n"); 1185 ifp->if_oerrors++; 1186 wi_init_locked(ifp->if_softc); 1187 return; 1188 } 1189 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc); 1190} 1191 1192static int 1193wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1194{ 1195 struct wi_softc *sc = ifp->if_softc; 1196 struct ieee80211com *ic = ifp->if_l2com; 1197 struct ifreq *ifr = (struct ifreq *) data; 1198 int error = 0, startall = 0; 1199 1200 switch (cmd) { 1201 case SIOCSIFFLAGS: 1202 WI_LOCK(sc); 1203 /* 1204 * Can't do promisc and hostap at the same time. If all that's 1205 * changing is the promisc flag, try to short-circuit a call to 1206 * wi_init() by just setting PROMISC in the hardware. 1207 */ 1208 if (ifp->if_flags & IFF_UP) { 1209 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 1210 ifp->if_drv_flags & IFF_DRV_RUNNING) { 1211 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { 1212 wi_write_val(sc, WI_RID_PROMISC, 1213 (ifp->if_flags & IFF_PROMISC) != 0); 1214 } else { 1215 wi_init_locked(sc); 1216 startall = 1; 1217 } 1218 } else { 1219 wi_init_locked(sc); 1220 startall = 1; 1221 } 1222 } else { 1223 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1224 wi_stop_locked(sc, 1); 1225 sc->wi_gone = 0; 1226 } 1227 sc->sc_if_flags = ifp->if_flags; 1228 WI_UNLOCK(sc); 1229 if (startall) 1230 ieee80211_start_all(ic); 1231 break; 1232 case SIOCGIFMEDIA: 1233 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1234 break; 1235 case SIOCGIFADDR: 1236 error = ether_ioctl(ifp, cmd, data); 1237 break; 1238 default: 1239 error = EINVAL; 1240 break; 1241 } 1242 return error; 1243} 1244 1245static void 1246wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1247{ 1248 struct ieee80211vap *vap = ifp->if_softc; 1249 struct ieee80211com *ic = vap->iv_ic; 1250 struct wi_softc *sc = ic->ic_ifp->if_softc; 1251 u_int16_t val; 1252 int rate, len; 1253 1254 len = sizeof(val); 1255 if (sc->sc_enabled && 1256 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && 1257 len == sizeof(val)) { 1258 /* convert to 802.11 rate */ 1259 val = le16toh(val); 1260 rate = val * 2; 1261 if (sc->sc_firmware_type == WI_LUCENT) { 1262 if (rate == 10) 1263 rate = 11; /* 5.5Mbps */ 1264 } else { 1265 if (rate == 4*2) 1266 rate = 11; /* 5.5Mbps */ 1267 else if (rate == 8*2) 1268 rate = 22; /* 11Mbps */ 1269 } 1270 vap->iv_bss->ni_txrate = rate; 1271 } 1272 ieee80211_media_status(ifp, imr); 1273} 1274 1275static void 1276wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) 1277{ 1278 struct ifnet *ifp = sc->sc_ifp; 1279 struct ieee80211com *ic = ifp->if_l2com; 1280 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1281 struct ieee80211_node *ni = vap->iv_bss; 1282 1283 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) 1284 return; 1285 1286 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid))); 1287 DPRINTF(("%s ?\n", ether_sprintf(new_bssid))); 1288 1289 /* In promiscuous mode, the BSSID field is not a reliable 1290 * indicator of the firmware's BSSID. Damp spurious 1291 * change-of-BSSID indications. 1292 */ 1293 if ((ifp->if_flags & IFF_PROMISC) != 0 && 1294 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, 1295 WI_MAX_FALSE_SYNS)) 1296 return; 1297 1298 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); 1299#if 0 1300 /* 1301 * XXX hack; we should create a new node with the new bssid 1302 * and replace the existing ic_bss with it but since we don't 1303 * process management frames to collect state we cheat by 1304 * reusing the existing node as we know wi_newstate will be 1305 * called and it will overwrite the node state. 1306 */ 1307 ieee80211_sta_join(ic, ieee80211_ref_node(ni)); 1308#endif 1309} 1310 1311static __noinline void 1312wi_rx_intr(struct wi_softc *sc) 1313{ 1314 struct ifnet *ifp = sc->sc_ifp; 1315 struct ieee80211com *ic = ifp->if_l2com; 1316 struct wi_frame frmhdr; 1317 struct mbuf *m; 1318 struct ieee80211_frame *wh; 1319 struct ieee80211_node *ni; 1320 int fid, len, off; 1321 u_int8_t dir; 1322 u_int16_t status; 1323 int8_t rssi, nf; 1324 1325 fid = CSR_READ_2(sc, WI_RX_FID); 1326 1327 /* First read in the frame header */ 1328 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { 1329 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1330 ifp->if_ierrors++; 1331 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); 1332 return; 1333 } 1334 1335 /* 1336 * Drop undecryptable or packets with receive errors here 1337 */ 1338 status = le16toh(frmhdr.wi_status); 1339 if (status & WI_STAT_ERRSTAT) { 1340 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1341 ifp->if_ierrors++; 1342 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); 1343 return; 1344 } 1345 1346 len = le16toh(frmhdr.wi_dat_len); 1347 off = ALIGN(sizeof(struct ieee80211_frame)); 1348 1349 /* 1350 * Sometimes the PRISM2.x returns bogusly large frames. Except 1351 * in monitor mode, just throw them away. 1352 */ 1353 if (off + len > MCLBYTES) { 1354 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1355 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1356 ifp->if_ierrors++; 1357 DPRINTF(("wi_rx_intr: oversized packet\n")); 1358 return; 1359 } else 1360 len = 0; 1361 } 1362 1363 if (off + len > MHLEN) 1364 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1365 else 1366 m = m_gethdr(M_NOWAIT, MT_DATA); 1367 if (m == NULL) { 1368 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1369 ifp->if_ierrors++; 1370 DPRINTF(("wi_rx_intr: MGET failed\n")); 1371 return; 1372 } 1373 m->m_data += off - sizeof(struct ieee80211_frame); 1374 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); 1375 wi_read_bap(sc, fid, sizeof(frmhdr), 1376 m->m_data + sizeof(struct ieee80211_frame), len); 1377 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1378 m->m_pkthdr.rcvif = ifp; 1379 1380 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); 1381 1382 rssi = frmhdr.wi_rx_signal; 1383 nf = frmhdr.wi_rx_silence; 1384 if (ieee80211_radiotap_active(ic)) { 1385 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; 1386 uint32_t rstamp; 1387 1388 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | 1389 le16toh(frmhdr.wi_rx_tstamp1); 1390 tap->wr_tsf = htole64((uint64_t)rstamp); 1391 /* XXX replace divide by table */ 1392 tap->wr_rate = frmhdr.wi_rx_rate / 5; 1393 tap->wr_flags = 0; 1394 if (frmhdr.wi_status & WI_STAT_PCF) 1395 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; 1396 if (m->m_flags & M_WEP) 1397 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; 1398 tap->wr_antsignal = rssi; 1399 tap->wr_antnoise = nf; 1400 } 1401 1402 /* synchronize driver's BSSID with firmware's BSSID */ 1403 wh = mtod(m, struct ieee80211_frame *); 1404 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; 1405 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) 1406 wi_sync_bssid(sc, wh->i_addr3); 1407 1408 WI_UNLOCK(sc); 1409 1410 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1411 if (ni != NULL) { 1412 (void) ieee80211_input(ni, m, rssi, nf); 1413 ieee80211_free_node(ni); 1414 } else 1415 (void) ieee80211_input_all(ic, m, rssi, nf); 1416 1417 WI_LOCK(sc); 1418} 1419 1420static __noinline void 1421wi_tx_ex_intr(struct wi_softc *sc) 1422{ 1423 struct ifnet *ifp = sc->sc_ifp; 1424 struct wi_frame frmhdr; 1425 int fid; 1426 1427 fid = CSR_READ_2(sc, WI_TX_CMP_FID); 1428 /* Read in the frame header */ 1429 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { 1430 u_int16_t status = le16toh(frmhdr.wi_status); 1431 /* 1432 * Spontaneous station disconnects appear as xmit 1433 * errors. Don't announce them and/or count them 1434 * as an output error. 1435 */ 1436 if ((status & WI_TXSTAT_DISCONNECT) == 0) { 1437 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { 1438 if_printf(ifp, "tx failed"); 1439 if (status & WI_TXSTAT_RET_ERR) 1440 printf(", retry limit exceeded"); 1441 if (status & WI_TXSTAT_AGED_ERR) 1442 printf(", max transmit lifetime exceeded"); 1443 if (status & WI_TXSTAT_DISCONNECT) 1444 printf(", port disconnected"); 1445 if (status & WI_TXSTAT_FORM_ERR) 1446 printf(", invalid format (data len %u src %6D)", 1447 le16toh(frmhdr.wi_dat_len), 1448 frmhdr.wi_ehdr.ether_shost, ":"); 1449 if (status & ~0xf) 1450 printf(", status=0x%x", status); 1451 printf("\n"); 1452 } 1453 ifp->if_oerrors++; 1454 } else { 1455 DPRINTF(("port disconnected\n")); 1456 ifp->if_collisions++; /* XXX */ 1457 } 1458 } else 1459 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); 1460 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); 1461} 1462 1463static __noinline void 1464wi_tx_intr(struct wi_softc *sc) 1465{ 1466 struct ifnet *ifp = sc->sc_ifp; 1467 int fid, cur; 1468 1469 if (sc->wi_gone) 1470 return; 1471 1472 fid = CSR_READ_2(sc, WI_ALLOC_FID); 1473 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1474 1475 cur = sc->sc_txcur; 1476 if (sc->sc_txd[cur].d_fid != fid) { 1477 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", 1478 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); 1479 return; 1480 } 1481 sc->sc_tx_timer = 0; 1482 sc->sc_txd[cur].d_len = 0; 1483 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; 1484 if (sc->sc_txd[cur].d_len == 0) 1485 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1486 else { 1487 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 1488 0, 0)) { 1489 if_printf(ifp, "xmit failed\n"); 1490 sc->sc_txd[cur].d_len = 0; 1491 } else { 1492 sc->sc_tx_timer = 5; 1493 } 1494 } 1495} 1496 1497static __noinline void 1498wi_info_intr(struct wi_softc *sc) 1499{ 1500 struct ifnet *ifp = sc->sc_ifp; 1501 struct ieee80211com *ic = ifp->if_l2com; 1502 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1503 int i, fid, len, off; 1504 u_int16_t ltbuf[2]; 1505 u_int16_t stat; 1506 u_int32_t *ptr; 1507 1508 fid = CSR_READ_2(sc, WI_INFO_FID); 1509 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); 1510 1511 switch (le16toh(ltbuf[1])) { 1512 case WI_INFO_LINK_STAT: 1513 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); 1514 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); 1515 1516 if (vap == NULL) 1517 goto finish; 1518 1519 switch (le16toh(stat)) { 1520 case WI_INFO_LINK_STAT_CONNECTED: 1521 if (vap->iv_state == IEEE80211_S_RUN && 1522 vap->iv_opmode != IEEE80211_M_IBSS) 1523 break; 1524 /* fall thru... */ 1525 case WI_INFO_LINK_STAT_AP_CHG: 1526 IEEE80211_LOCK(ic); 1527 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ 1528 ieee80211_new_state(vap, IEEE80211_S_RUN, 0); 1529 IEEE80211_UNLOCK(ic); 1530 break; 1531 case WI_INFO_LINK_STAT_AP_INR: 1532 break; 1533 case WI_INFO_LINK_STAT_DISCONNECTED: 1534 /* we dropped off the net; e.g. due to deauth/disassoc */ 1535 IEEE80211_LOCK(ic); 1536 vap->iv_bss->ni_associd = 0; 1537 vap->iv_stats.is_rx_deauth++; 1538 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); 1539 IEEE80211_UNLOCK(ic); 1540 break; 1541 case WI_INFO_LINK_STAT_AP_OOR: 1542 /* XXX does this need to be per-vap? */ 1543 ieee80211_beacon_miss(ic); 1544 break; 1545 case WI_INFO_LINK_STAT_ASSOC_FAILED: 1546 if (vap->iv_opmode == IEEE80211_M_STA) 1547 ieee80211_new_state(vap, IEEE80211_S_SCAN, 1548 IEEE80211_SCAN_FAIL_TIMEOUT); 1549 break; 1550 } 1551 break; 1552 case WI_INFO_COUNTERS: 1553 /* some card versions have a larger stats structure */ 1554 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); 1555 ptr = (u_int32_t *)&sc->sc_stats; 1556 off = sizeof(ltbuf); 1557 for (i = 0; i < len; i++, off += 2, ptr++) { 1558 wi_read_bap(sc, fid, off, &stat, sizeof(stat)); 1559#ifdef WI_HERMES_STATS_WAR 1560 if (stat & 0xf000) 1561 stat = ~stat; 1562#endif 1563 *ptr += stat; 1564 } 1565 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + 1566 sc->sc_stats.wi_tx_multi_retries + 1567 sc->sc_stats.wi_tx_retry_limit; 1568 break; 1569 default: 1570 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, 1571 le16toh(ltbuf[1]), le16toh(ltbuf[0]))); 1572 break; 1573 } 1574finish: 1575 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); 1576} 1577 1578static int 1579wi_write_multi(struct wi_softc *sc) 1580{ 1581 struct ifnet *ifp = sc->sc_ifp; 1582 int n; 1583 struct ifmultiaddr *ifma; 1584 struct wi_mcast mlist; 1585 1586 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1587allmulti: 1588 memset(&mlist, 0, sizeof(mlist)); 1589 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1590 sizeof(mlist)); 1591 } 1592 1593 n = 0; 1594 if_maddr_rlock(ifp); 1595 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1596 if (ifma->ifma_addr->sa_family != AF_LINK) 1597 continue; 1598 if (n >= 16) 1599 goto allmulti; 1600 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], 1601 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); 1602 n++; 1603 } 1604 if_maddr_runlock(ifp); 1605 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, 1606 IEEE80211_ADDR_LEN * n); 1607} 1608 1609static void 1610wi_update_mcast(struct ifnet *ifp) 1611{ 1612 wi_write_multi(ifp->if_softc); 1613} 1614 1615static void 1616wi_update_promisc(struct ifnet *ifp) 1617{ 1618 struct wi_softc *sc = ifp->if_softc; 1619 struct ieee80211com *ic = ifp->if_l2com; 1620 1621 WI_LOCK(sc); 1622 /* XXX handle WEP special case handling? */ 1623 wi_write_val(sc, WI_RID_PROMISC, 1624 (ic->ic_opmode == IEEE80211_M_MONITOR || 1625 (ifp->if_flags & IFF_PROMISC))); 1626 WI_UNLOCK(sc); 1627} 1628 1629static void 1630wi_read_nicid(struct wi_softc *sc) 1631{ 1632 struct wi_card_ident *id; 1633 char *p; 1634 int len; 1635 u_int16_t ver[4]; 1636 1637 /* getting chip identity */ 1638 memset(ver, 0, sizeof(ver)); 1639 len = sizeof(ver); 1640 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); 1641 1642 sc->sc_firmware_type = WI_NOTYPE; 1643 sc->sc_nic_id = le16toh(ver[0]); 1644 for (id = wi_card_ident; id->card_name != NULL; id++) { 1645 if (sc->sc_nic_id == id->card_id) { 1646 sc->sc_nic_name = id->card_name; 1647 sc->sc_firmware_type = id->firm_type; 1648 break; 1649 } 1650 } 1651 if (sc->sc_firmware_type == WI_NOTYPE) { 1652 if (sc->sc_nic_id & 0x8000) { 1653 sc->sc_firmware_type = WI_INTERSIL; 1654 sc->sc_nic_name = "Unknown Prism chip"; 1655 } else { 1656 sc->sc_firmware_type = WI_LUCENT; 1657 sc->sc_nic_name = "Unknown Lucent chip"; 1658 } 1659 } 1660 if (bootverbose) 1661 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); 1662 1663 /* get primary firmware version (Only Prism chips) */ 1664 if (sc->sc_firmware_type != WI_LUCENT) { 1665 memset(ver, 0, sizeof(ver)); 1666 len = sizeof(ver); 1667 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); 1668 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + 1669 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1670 } 1671 1672 /* get station firmware version */ 1673 memset(ver, 0, sizeof(ver)); 1674 len = sizeof(ver); 1675 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); 1676 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + 1677 le16toh(ver[3]) * 100 + le16toh(ver[1]); 1678 if (sc->sc_firmware_type == WI_INTERSIL && 1679 (sc->sc_sta_firmware_ver == 10102 || 1680 sc->sc_sta_firmware_ver == 20102)) { 1681 char ident[12]; 1682 memset(ident, 0, sizeof(ident)); 1683 len = sizeof(ident); 1684 /* value should be the format like "V2.00-11" */ 1685 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && 1686 *(p = (char *)ident) >= 'A' && 1687 p[2] == '.' && p[5] == '-' && p[8] == '\0') { 1688 sc->sc_firmware_type = WI_SYMBOL; 1689 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + 1690 (p[3] - '0') * 1000 + (p[4] - '0') * 100 + 1691 (p[6] - '0') * 10 + (p[7] - '0'); 1692 } 1693 } 1694 if (bootverbose) { 1695 device_printf(sc->sc_dev, "%s Firmware: ", 1696 wi_firmware_names[sc->sc_firmware_type]); 1697 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ 1698 printf("Primary (%u.%u.%u), ", 1699 sc->sc_pri_firmware_ver / 10000, 1700 (sc->sc_pri_firmware_ver % 10000) / 100, 1701 sc->sc_pri_firmware_ver % 100); 1702 printf("Station (%u.%u.%u)\n", 1703 sc->sc_sta_firmware_ver / 10000, 1704 (sc->sc_sta_firmware_ver % 10000) / 100, 1705 sc->sc_sta_firmware_ver % 100); 1706 } 1707} 1708 1709static int 1710wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) 1711{ 1712 struct wi_ssid ssid; 1713 1714 if (buflen > IEEE80211_NWID_LEN) 1715 return ENOBUFS; 1716 memset(&ssid, 0, sizeof(ssid)); 1717 ssid.wi_len = htole16(buflen); 1718 memcpy(ssid.wi_ssid, buf, buflen); 1719 return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); 1720} 1721 1722static int 1723wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) 1724{ 1725 static const uint16_t lucent_rates[12] = { 1726 [ 0] = 3, /* auto */ 1727 [ 1] = 1, /* 1Mb/s */ 1728 [ 2] = 2, /* 2Mb/s */ 1729 [ 5] = 4, /* 5.5Mb/s */ 1730 [11] = 5 /* 11Mb/s */ 1731 }; 1732 static const uint16_t intersil_rates[12] = { 1733 [ 0] = 0xf, /* auto */ 1734 [ 1] = 0, /* 1Mb/s */ 1735 [ 2] = 1, /* 2Mb/s */ 1736 [ 5] = 2, /* 5.5Mb/s */ 1737 [11] = 3, /* 11Mb/s */ 1738 }; 1739 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? 1740 lucent_rates : intersil_rates; 1741 struct ieee80211com *ic = vap->iv_ic; 1742 const struct ieee80211_txparam *tp; 1743 1744 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 1745 return wi_write_val(sc, WI_RID_TX_RATE, 1746 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? 1747 rates[0] : rates[tp->ucastrate / 2])); 1748} 1749 1750static int 1751wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) 1752{ 1753 int error = 0; 1754 int i, keylen; 1755 u_int16_t val; 1756 struct wi_key wkey[IEEE80211_WEP_NKID]; 1757 1758 switch (sc->sc_firmware_type) { 1759 case WI_LUCENT: 1760 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; 1761 error = wi_write_val(sc, WI_RID_ENCRYPTION, val); 1762 if (error) 1763 break; 1764 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) 1765 break; 1766 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); 1767 if (error) 1768 break; 1769 memset(wkey, 0, sizeof(wkey)); 1770 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1771 keylen = vap->iv_nw_keys[i].wk_keylen; 1772 wkey[i].wi_keylen = htole16(keylen); 1773 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, 1774 keylen); 1775 } 1776 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, 1777 wkey, sizeof(wkey)); 1778 sc->sc_encryption = 0; 1779 break; 1780 1781 case WI_INTERSIL: 1782 val = HOST_ENCRYPT | HOST_DECRYPT; 1783 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 1784 /* 1785 * ONLY HWB3163 EVAL-CARD Firmware version 1786 * less than 0.8 variant2 1787 * 1788 * If promiscuous mode disable, Prism2 chip 1789 * does not work with WEP . 1790 * It is under investigation for details. 1791 * (ichiro@netbsd.org) 1792 */ 1793 if (sc->sc_sta_firmware_ver < 802 ) { 1794 /* firm ver < 0.8 variant 2 */ 1795 wi_write_val(sc, WI_RID_PROMISC, 1); 1796 } 1797 wi_write_val(sc, WI_RID_CNFAUTHMODE, 1798 vap->iv_bss->ni_authmode); 1799 val |= PRIVACY_INVOKED; 1800 } else { 1801 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); 1802 } 1803 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); 1804 if (error) 1805 break; 1806 sc->sc_encryption = val; 1807 if ((val & PRIVACY_INVOKED) == 0) 1808 break; 1809 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); 1810 break; 1811 } 1812 return error; 1813} 1814 1815static int 1816wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) 1817{ 1818 int i, s = 0; 1819 1820 if (sc->wi_gone) 1821 return (ENODEV); 1822 1823 /* wait for the busy bit to clear */ 1824 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ 1825 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) 1826 break; 1827 DELAY(1*1000); /* 1ms */ 1828 } 1829 if (i == 0) { 1830 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", 1831 __func__, cmd); 1832 sc->wi_gone = 1; 1833 return(ETIMEDOUT); 1834 } 1835 1836 CSR_WRITE_2(sc, WI_PARAM0, val0); 1837 CSR_WRITE_2(sc, WI_PARAM1, val1); 1838 CSR_WRITE_2(sc, WI_PARAM2, val2); 1839 CSR_WRITE_2(sc, WI_COMMAND, cmd); 1840 1841 if (cmd == WI_CMD_INI) { 1842 /* XXX: should sleep here. */ 1843 DELAY(100*1000); /* 100ms delay for init */ 1844 } 1845 for (i = 0; i < WI_TIMEOUT; i++) { 1846 /* 1847 * Wait for 'command complete' bit to be 1848 * set in the event status register. 1849 */ 1850 s = CSR_READ_2(sc, WI_EVENT_STAT); 1851 if (s & WI_EV_CMD) { 1852 /* Ack the event and read result code. */ 1853 s = CSR_READ_2(sc, WI_STATUS); 1854 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); 1855 if (s & WI_STAT_CMD_RESULT) { 1856 return(EIO); 1857 } 1858 break; 1859 } 1860 DELAY(WI_DELAY); 1861 } 1862 1863 if (i == WI_TIMEOUT) { 1864 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " 1865 "event status 0x%04x\n", __func__, cmd, s); 1866 if (s == 0xffff) 1867 sc->wi_gone = 1; 1868 return(ETIMEDOUT); 1869 } 1870 return (0); 1871} 1872 1873static int 1874wi_seek_bap(struct wi_softc *sc, int id, int off) 1875{ 1876 int i, status; 1877 1878 CSR_WRITE_2(sc, WI_SEL0, id); 1879 CSR_WRITE_2(sc, WI_OFF0, off); 1880 1881 for (i = 0; ; i++) { 1882 status = CSR_READ_2(sc, WI_OFF0); 1883 if ((status & WI_OFF_BUSY) == 0) 1884 break; 1885 if (i == WI_TIMEOUT) { 1886 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", 1887 __func__, id, off); 1888 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1889 if (status == 0xffff) 1890 sc->wi_gone = 1; 1891 return ETIMEDOUT; 1892 } 1893 DELAY(1); 1894 } 1895 if (status & WI_OFF_ERR) { 1896 device_printf(sc->sc_dev, "%s: error, id %x off %x\n", 1897 __func__, id, off); 1898 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ 1899 return EIO; 1900 } 1901 sc->sc_bap_id = id; 1902 sc->sc_bap_off = off; 1903 return 0; 1904} 1905 1906static int 1907wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1908{ 1909 int error, cnt; 1910 1911 if (buflen == 0) 1912 return 0; 1913 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1914 if ((error = wi_seek_bap(sc, id, off)) != 0) 1915 return error; 1916 } 1917 cnt = (buflen + 1) / 2; 1918 CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 1919 sc->sc_bap_off += cnt * 2; 1920 return 0; 1921} 1922 1923static int 1924wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) 1925{ 1926 int error, cnt; 1927 1928 if (buflen == 0) 1929 return 0; 1930 1931 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1932 if ((error = wi_seek_bap(sc, id, off)) != 0) 1933 return error; 1934 } 1935 cnt = (buflen + 1) / 2; 1936 CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt); 1937 sc->sc_bap_off += cnt * 2; 1938 1939 return 0; 1940} 1941 1942static int 1943wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) 1944{ 1945 int error, len; 1946 struct mbuf *m; 1947 1948 for (m = m0; m != NULL && totlen > 0; m = m->m_next) { 1949 if (m->m_len == 0) 1950 continue; 1951 1952 len = min(m->m_len, totlen); 1953 1954 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { 1955 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); 1956 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, 1957 totlen); 1958 } 1959 1960 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) 1961 return error; 1962 1963 off += m->m_len; 1964 totlen -= len; 1965 } 1966 return 0; 1967} 1968 1969static int 1970wi_alloc_fid(struct wi_softc *sc, int len, int *idp) 1971{ 1972 int i; 1973 1974 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { 1975 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", 1976 __func__, len); 1977 return ENOMEM; 1978 } 1979 1980 for (i = 0; i < WI_TIMEOUT; i++) { 1981 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) 1982 break; 1983 DELAY(1); 1984 } 1985 if (i == WI_TIMEOUT) { 1986 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); 1987 return ETIMEDOUT; 1988 } 1989 *idp = CSR_READ_2(sc, WI_ALLOC_FID); 1990 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); 1991 return 0; 1992} 1993 1994static int 1995wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) 1996{ 1997 int error, len; 1998 u_int16_t ltbuf[2]; 1999 2000 /* Tell the NIC to enter record read mode. */ 2001 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); 2002 if (error) 2003 return error; 2004 2005 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2006 if (error) 2007 return error; 2008 2009 if (le16toh(ltbuf[1]) != rid) { 2010 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", 2011 rid, le16toh(ltbuf[1])); 2012 return EIO; 2013 } 2014 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ 2015 if (*buflenp < len) { 2016 device_printf(sc->sc_dev, "record buffer is too small, " 2017 "rid=%x, size=%d, len=%d\n", 2018 rid, *buflenp, len); 2019 return ENOSPC; 2020 } 2021 *buflenp = len; 2022 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); 2023} 2024 2025static int 2026wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) 2027{ 2028 int error; 2029 u_int16_t ltbuf[2]; 2030 2031 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ 2032 ltbuf[1] = htole16(rid); 2033 2034 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); 2035 if (error) { 2036 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", 2037 __func__, rid); 2038 return error; 2039 } 2040 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); 2041 if (error) { 2042 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", 2043 __func__, rid); 2044 return error; 2045 } 2046 2047 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); 2048} 2049 2050static int 2051wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) 2052{ 2053 /* NB: 42 bytes is probably ok to have on the stack */ 2054 char buf[sizeof(uint16_t) + 40]; 2055 2056 if (ie->ie_len > 40) 2057 return EINVAL; 2058 /* NB: firmware requires 16-bit ie length before ie data */ 2059 *(uint16_t *) buf = htole16(ie->ie_len); 2060 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); 2061 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); 2062} 2063 2064int 2065wi_alloc(device_t dev, int rid) 2066{ 2067 struct wi_softc *sc = device_get_softc(dev); 2068 2069 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { 2070 sc->iobase_rid = rid; 2071 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, 2072 &sc->iobase_rid, 0, ~0, (1 << 6), 2073 rman_make_alignment_flags(1 << 6) | RF_ACTIVE); 2074 if (sc->iobase == NULL) { 2075 device_printf(dev, "No I/O space?!\n"); 2076 return ENXIO; 2077 } 2078 2079 sc->wi_io_addr = rman_get_start(sc->iobase); 2080 sc->wi_btag = rman_get_bustag(sc->iobase); 2081 sc->wi_bhandle = rman_get_bushandle(sc->iobase); 2082 } else { 2083 sc->mem_rid = rid; 2084 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 2085 &sc->mem_rid, RF_ACTIVE); 2086 if (sc->mem == NULL) { 2087 device_printf(dev, "No Mem space on prism2.5?\n"); 2088 return ENXIO; 2089 } 2090 2091 sc->wi_btag = rman_get_bustag(sc->mem); 2092 sc->wi_bhandle = rman_get_bushandle(sc->mem); 2093 } 2094 2095 sc->irq_rid = 0; 2096 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 2097 RF_ACTIVE | 2098 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); 2099 if (sc->irq == NULL) { 2100 wi_free(dev); 2101 device_printf(dev, "No irq?!\n"); 2102 return ENXIO; 2103 } 2104 2105 sc->sc_dev = dev; 2106 sc->sc_unit = device_get_unit(dev); 2107 return 0; 2108} 2109 2110void 2111wi_free(device_t dev) 2112{ 2113 struct wi_softc *sc = device_get_softc(dev); 2114 2115 if (sc->iobase != NULL) { 2116 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); 2117 sc->iobase = NULL; 2118 } 2119 if (sc->irq != NULL) { 2120 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 2121 sc->irq = NULL; 2122 } 2123 if (sc->mem != NULL) { 2124 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 2125 sc->mem = NULL; 2126 } 2127} 2128