sys/dev/netif/wi/if_wi.c

   1 /*      $NetBSD: wi.c,v 1.109 2003/01/09 08:52:19 dyoung Exp $  */
   2
   3 /*
   4  * Copyright (c) 1997, 1998, 1999
   5  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Bill Paul.
  18  * 4. Neither the name of the author nor the names of any co-contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * $FreeBSD: src/sys/dev/wi/if_wi.c,v 1.180.2.7 2005/10/05 13:16:29 avatar Exp $
  35  * $DragonFly: src/sys/dev/netif/wi/if_wi.c,v 1.40 2007/04/08 09:43:57 sephe Exp $
  36  */
  37
  38 /*
  39  * Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
  40  *
  41  * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
  42  * Electrical Engineering Department
  43  * Columbia University, New York City
  44  */
  45
  46 /*
  47  * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
  48  * from Lucent. Unlike the older cards, the new ones are programmed
  49  * entirely via a firmware-driven controller called the Hermes.
  50  * Unfortunately, Lucent will not release the Hermes programming manual
  51  * without an NDA (if at all). What they do release is an API library
  52  * called the HCF (Hardware Control Functions) which is supposed to
  53  * do the device-specific operations of a device driver for you. The
  54  * publically available version of the HCF library (the 'HCF Light') is
  55  * a) extremely gross, b) lacks certain features, particularly support
  56  * for 802.11 frames, and c) is contaminated by the GNU Public License.
  57  *
  58  * This driver does not use the HCF or HCF Light at all. Instead, it
  59  * programs the Hermes controller directly, using information gleaned
  60  * from the HCF Light code and corresponding documentation.
  61  *
  62  * This driver supports the ISA, PCMCIA and PCI versions of the Lucent
  63  * WaveLan cards (based on the Hermes chipset), as well as the newer
  64  * Prism 2 chipsets with firmware from Intersil and Symbol.
  65  */
  66
  67 #define WI_HERMES_AUTOINC_WAR   /* Work around data write autoinc bug. */
  68 #define WI_HERMES_STATS_WAR     /* Work around stats counter bug. */
  69
  70 #include "opt_polling.h"
  71
  72 #include <sys/param.h>
  73 #include <sys/endian.h>
  74 #include <sys/systm.h>
  75 #include <sys/sockio.h>
  76 #include <sys/mbuf.h>
  77 #include <sys/proc.h>
  78 #include <sys/kernel.h>
  79 #include <sys/socket.h>
  80 #include <sys/module.h>
  81 #include <sys/bus.h>
  82 #include <sys/random.h>
  83 #include <sys/syslog.h>
  84 #include <sys/sysctl.h>
  85 #include <sys/serialize.h>
  86 #include <sys/rman.h>
  87 #include <sys/thread2.h>
  88
  89 #include <machine/atomic.h>
  90
  91 #include <net/if.h>
  92 #include <net/if_arp.h>
  93 #include <net/ethernet.h>
  94 #include <net/if_dl.h>
  95 #include <net/if_media.h>
  96 #include <net/if_types.h>
  97 #include <net/ifq_var.h>
  98
  99 #include <netproto/802_11/ieee80211_var.h>
 100 #include <netproto/802_11/ieee80211_ioctl.h>
 101 #include <netproto/802_11/ieee80211_radiotap.h>
 102 #include <netproto/802_11/if_wavelan_ieee.h>
 103
 104 #include <netinet/in.h>
 105 #include <netinet/in_systm.h>
 106 #include <netinet/in_var.h>
 107 #include <netinet/ip.h>
 108 #include <netinet/if_ether.h>
 109
 110 #include <net/bpf.h>
 111
 112 #include <dev/netif/wi/if_wireg.h>
 113 #include <dev/netif/wi/if_wivar.h>
 114
 115 static void wi_start(struct ifnet *);
 116 static int  wi_reset(struct wi_softc *);
 117 static void wi_watchdog(struct ifnet *);
 118 static int  wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 119 static int  wi_media_change(struct ifnet *);
 120 static void wi_media_status(struct ifnet *, struct ifmediareq *);
 121
 122 static void wi_rx_intr(struct wi_softc *);
 123 static void wi_tx_intr(struct wi_softc *);
 124 static void wi_tx_ex_intr(struct wi_softc *);
 125 static void wi_info_intr(struct wi_softc *);
 126
 127 static int  wi_get_cfg(struct ifnet *, u_long, caddr_t, struct ucred *);
 128 static int  wi_set_cfg(struct ifnet *, u_long, caddr_t);
 129 static int  wi_write_txrate(struct wi_softc *);
 130 static int  wi_write_wep(struct wi_softc *);
 131 static int  wi_write_multi(struct wi_softc *);
 132 static int  wi_alloc_fid(struct wi_softc *, int, int *);
 133 static void wi_read_nicid(struct wi_softc *);
 134 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
 135
 136 static int  wi_cmd(struct wi_softc *, int, int, int, int);
 137 static int  wi_seek_bap(struct wi_softc *, int, int);
 138 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
 139 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
 140 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
 141 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
 142 static int  wi_write_rid(struct wi_softc *, int, void *, int);
 143
 144 static int  wi_key_alloc(struct ieee80211com *, const struct ieee80211_key *,
 145                 ieee80211_keyix *, ieee80211_keyix *);
 146 static int  wi_newstate(struct ieee80211com *, enum ieee80211_state, int);
 147
 148 static int  wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t);
 149 static void wi_scan_result(struct wi_softc *, int, int);
 150
 151 static void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi);
 152
 153 static int wi_get_debug(struct wi_softc *, struct wi_req *);
 154 static int wi_set_debug(struct wi_softc *, struct wi_req *);
 155
 156 /* support to download firmware for symbol CF card */
 157 static int wi_symbol_write_firm(struct wi_softc *, const void *, int,
 158                 const void *, int);
 159 static int wi_symbol_set_hcr(struct wi_softc *, int);
 160 #ifdef DEVICE_POLLING
 161 static void wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count);
 162 #endif
 163
 164 static __inline int
 165 wi_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
 172 SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters");
 173
 174 static  struct timeval lasttxerror;     /* time of last tx error msg */
 175 static  int curtxeps;                   /* current tx error msgs/sec */
 176 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
 177 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
 178             0, "max tx error msgs/sec; 0 to disable msgs");
 179
 180 #define WI_DEBUG
 181 #ifdef WI_DEBUG
 182 static  int wi_debug = 0;
 183 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
 184             0, "control debugging kprintfs");
 185
 186 #define DPRINTF(X)      if (wi_debug) if_printf X
 187 #define DPRINTF2(X)     if (wi_debug > 1) if_printf X
 188 #define IFF_DUMPPKTS(_ifp) \
 189         (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
 190 #else
 191 #define DPRINTF(X)
 192 #define DPRINTF2(X)
 193 #define IFF_DUMPPKTS(_ifp)      0
 194 #endif
 195
 196 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
 197
 198 struct wi_card_ident wi_card_ident[] = {
 199         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
 200         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
 201         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
 202         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
 203         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
 204         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
 205         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
 206         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
 207         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
 208         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
 209         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
 210         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
 211         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
 212         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 213         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 214         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 215         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 216         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 217         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 218         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 219         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 220         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 221         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 222         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 223         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 224         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 225         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 226         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 227         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 228         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 229         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 230         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 231         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 232         { 0,    NULL,   0 },
 233 };
 234
 235 devclass_t wi_devclass;
 236
 237 int
 238 wi_attach(device_t dev)
 239 {
 240         struct wi_softc *sc = device_get_softc(dev);
 241         struct ieee80211com *ic = &sc->sc_ic;
 242         struct ifnet *ifp = &ic->ic_if;
 243         int i, nrates, buflen;
 244         u_int16_t val;
 245         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
 246         struct ieee80211_rateset *rs;
 247         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
 248                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 249         };
 250         int error;
 251
 252         ifp->if_softc = sc;
 253         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 254
 255         sc->sc_firmware_type = WI_NOTYPE;
 256         sc->wi_cmd_count = 500;
 257
 258         /* Reset the NIC. */
 259         error = wi_reset(sc);
 260         if (error)
 261                 goto fail;
 262
 263         /*
 264          * Read the station address.
 265          * And do it twice. I've seen PRISM-based cards that return
 266          * an error when trying to read it the first time, which causes
 267          * the probe to fail.
 268          */
 269         buflen = IEEE80211_ADDR_LEN;
 270         error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 271         if (error != 0) {
 272                 buflen = IEEE80211_ADDR_LEN;
 273                 error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 274         }
 275         if (error) {
 276                 device_printf(dev, "mac read failed %d\n", error);
 277                 goto fail;
 278         }
 279         if (IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) {
 280                 device_printf(dev, "mac read failed (all zeros)\n");
 281                 error = ENXIO;
 282                 goto fail;
 283         }
 284
 285         /* Read NIC identification */
 286         wi_read_nicid(sc);
 287
 288         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 289         ifp->if_ioctl = wi_ioctl;
 290         ifp->if_start = wi_start;
 291         ifp->if_watchdog = wi_watchdog;
 292         ifp->if_init = wi_init;
 293         ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
 294         ifq_set_ready(&ifp->if_snd);
 295 #ifdef DEVICE_POLLING
 296         ifp->if_poll = wi_poll;
 297 #endif
 298         ifp->if_capenable = ifp->if_capabilities;
 299
 300         ic->ic_phytype = IEEE80211_T_DS;
 301         ic->ic_opmode = IEEE80211_M_STA;
 302         ic->ic_caps = IEEE80211_C_PMGT |
 303                       IEEE80211_C_IBSS |
 304                       IEEE80211_C_WEP;
 305         ic->ic_state = IEEE80211_S_INIT;
 306         ic->ic_max_aid = WI_MAX_AID;
 307
 308         /*
 309          * Query the card for available channels and setup the
 310          * channel table.  We assume these are all 11b channels.
 311          */
 312         buflen = sizeof(val);
 313         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
 314                 val = htole16(0x1fff);  /* assume 1-11 */
 315         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
 316
 317         val <<= 1;                      /* shift for base 1 indices */
 318         for (i = 1; i < 16; i++) {
 319                 if (isset((u_int8_t*)&val, i)) {
 320                         ic->ic_channels[i].ic_freq =
 321                                 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
 322                         ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B;
 323                 }
 324         }
 325
 326         /*
 327          * Read the default channel from the NIC. This may vary
 328          * depending on the country where the NIC was purchased, so
 329          * we can't hard-code a default and expect it to work for
 330          * everyone.
 331          *
 332          * If no channel is specified, let the 802.11 code select.
 333          */
 334         buflen = sizeof(val);
 335         if (wi_read_rid(sc, WI_RID_OWN_CHNL, &val, &buflen) == 0) {
 336                 val = le16toh(val);
 337                 KASSERT(val < IEEE80211_CHAN_MAX &&
 338                         ic->ic_channels[val].ic_flags != 0,
 339                         ("wi_attach: invalid own channel %u!", val));
 340                 ic->ic_ibss_chan = &ic->ic_channels[val];
 341         } else {
 342                 device_printf(dev,
 343                         "WI_RID_OWN_CHNL failed, using first channel!\n");
 344                 ic->ic_ibss_chan = &ic->ic_channels[0];
 345         }
 346
 347         /*
 348          * Set flags based on firmware version.
 349          */
 350         switch (sc->sc_firmware_type) {
 351         case WI_LUCENT:
 352                 sc->sc_ntxbuf = 1;
 353                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 354 #ifdef WI_HERMES_AUTOINC_WAR
 355                 /* XXX: not confirmed, but never seen for recent firmware */
 356                 if (sc->sc_sta_firmware_ver <  40000) {
 357                         sc->sc_flags |= WI_FLAGS_BUG_AUTOINC;
 358                 }
 359 #endif
 360                 if (sc->sc_sta_firmware_ver >= 60000)
 361                         sc->sc_flags |= WI_FLAGS_HAS_MOR;
 362                 if (sc->sc_sta_firmware_ver >= 60006) {
 363                         ic->ic_caps |= IEEE80211_C_IBSS;
 364                         ic->ic_caps |= IEEE80211_C_MONITOR;
 365                 }
 366                 sc->sc_ibss_port = htole16(1);
 367
 368                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
 369                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
 370                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
 371                 break;
 372
 373         case WI_INTERSIL:
 374                 sc->sc_ntxbuf = WI_NTXBUF;
 375                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR;
 376                 sc->sc_flags |= WI_FLAGS_HAS_ROAMING;
 377                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 378                 /*
 379                  * Old firmware are slow, so give peace a chance.
 380                  */
 381                 if (sc->sc_sta_firmware_ver < 10000)
 382                         sc->wi_cmd_count = 5000;
 383                 if (sc->sc_sta_firmware_ver > 10101)
 384                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
 385                 if (sc->sc_sta_firmware_ver >= 800) {
 386                         ic->ic_caps |= IEEE80211_C_IBSS;
 387                         ic->ic_caps |= IEEE80211_C_MONITOR;
 388                 }
 389                 /*
 390                  * version 0.8.3 and newer are the only ones that are known
 391                  * to currently work.  Earlier versions can be made to work,
 392                  * at least according to the Linux driver.
 393                  */
 394                 if (sc->sc_sta_firmware_ver >= 803)
 395                         ic->ic_caps |= IEEE80211_C_HOSTAP;
 396                 sc->sc_ibss_port = htole16(0);
 397
 398                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 399                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 400                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 401                 break;
 402
 403         case WI_SYMBOL:
 404                 sc->sc_ntxbuf = 1;
 405                 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY;
 406                 if (sc->sc_sta_firmware_ver >= 25000)
 407                         ic->ic_caps |= IEEE80211_C_IBSS;
 408                 sc->sc_ibss_port = htole16(4);
 409
 410                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 411                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 412                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 413                 break;
 414         }
 415
 416         /*
 417          * Find out if we support WEP on this card.
 418          */
 419         buflen = sizeof(val);
 420         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
 421             val != htole16(0))
 422                 ic->ic_caps |= IEEE80211_C_WEP;
 423
 424         /* Find supported rates. */
 425         buflen = sizeof(ratebuf);
 426         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
 427         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
 428                 nrates = le16toh(*(u_int16_t *)ratebuf);
 429                 if (nrates > IEEE80211_RATE_MAXSIZE)
 430                         nrates = IEEE80211_RATE_MAXSIZE;
 431                 rs->rs_nrates = 0;
 432                 for (i = 0; i < nrates; i++)
 433                         if (ratebuf[2+i])
 434                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
 435         } else {
 436                 /* XXX fallback on error? */
 437                 rs->rs_nrates = 0;
 438         }
 439
 440         buflen = sizeof(val);
 441         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
 442             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
 443                 sc->sc_dbm_offset = le16toh(val);
 444         }
 445
 446         sc->sc_max_datalen = 2304;
 447         sc->sc_system_scale = 1;
 448         sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN;
 449         sc->sc_roaming_mode = 1;
 450
 451         sc->sc_portnum = WI_DEFAULT_PORT;
 452         sc->sc_authtype = WI_DEFAULT_AUTHTYPE;
 453
 454         bzero(sc->sc_nodename, sizeof(sc->sc_nodename));
 455         sc->sc_nodelen = sizeof(WI_DEFAULT_NODENAME) - 1;
 456         bcopy(WI_DEFAULT_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 457
 458         bzero(sc->sc_net_name, sizeof(sc->sc_net_name));
 459         bcopy(WI_DEFAULT_NETNAME, sc->sc_net_name,
 460             sizeof(WI_DEFAULT_NETNAME) - 1);
 461
 462         /*
 463          * Call MI attach routine.
 464          */
 465         ieee80211_ifattach(ic);
 466         /* override state transition method */
 467         sc->sc_newstate = ic->ic_newstate;
 468         sc->sc_key_alloc = ic->ic_crypto.cs_key_alloc;
 469         ic->ic_crypto.cs_key_alloc = wi_key_alloc;
 470         ic->ic_newstate = wi_newstate;
 471         ieee80211_media_init(ic, wi_media_change, wi_media_status);
 472
 473         bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
 474                 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
 475                 &sc->sc_drvbpf);
 476         /*
 477          * Initialize constant fields.
 478          * XXX make header lengths a multiple of 32-bits so subsequent
 479          *     headers are properly aligned; this is a kludge to keep
 480          *     certain applications happy.
 481          *
 482          * NB: the channel is setup each time we transition to the
 483          *     RUN state to avoid filling it in for each frame.
 484          */
 485         sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
 486         sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
 487         sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
 488
 489         sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
 490         sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
 491         sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
 492
 493         error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
 494                                wi_intr, sc, &sc->wi_intrhand,
 495                                ifp->if_serializer);
 496         if (error) {
 497                 bpfdetach(ifp);
 498                 ieee80211_ifdetach(ic);
 499                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
 500                 goto fail;
 501         }
 502
 503         if (bootverbose)
 504                 ieee80211_announce(ic);
 505
 506         return(0);
 507
 508 fail:
 509         wi_free(dev);
 510         return(error);
 511 }
 512
 513 int
 514 wi_detach(device_t dev)
 515 {
 516         struct wi_softc *sc = device_get_softc(dev);
 517         struct ifnet *ifp = &sc->sc_ic.ic_if;
 518
 519         lwkt_serialize_enter(ifp->if_serializer);
 520
 521         /* check if device was removed */
 522         sc->wi_gone |= !bus_child_present(dev);
 523         wi_stop(ifp, 0);
 524         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
 525
 526         lwkt_serialize_exit(ifp->if_serializer);
 527
 528         bpfdetach(ifp);
 529         ieee80211_ifdetach(&sc->sc_ic);
 530         wi_free(dev);
 531         return (0);
 532 }
 533
 534 void
 535 wi_shutdown(device_t dev)
 536 {
 537         struct wi_softc *sc = device_get_softc(dev);
 538         struct ifnet *ifp = &sc->sc_if;
 539
 540         lwkt_serialize_enter(ifp->if_serializer);
 541         wi_stop(ifp, 1);
 542         lwkt_serialize_exit(ifp->if_serializer);
 543 }
 544
 545 #ifdef DEVICE_POLLING
 546
 547 static void
 548 wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 549 {
 550         struct wi_softc *sc = ifp->if_softc;
 551         uint16_t status;
 552
 553         switch(cmd) {
 554         case POLL_REGISTER:
 555                 /* disable interruptds */
 556                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 557                 break;
 558         case POLL_DEREGISTER:
 559                 /* enable interrupts */
 560                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 561                 break;
 562         default:
 563                 status = CSR_READ_2(sc, WI_EVENT_STAT);
 564
 565                 if (status & WI_EV_RX)
 566                         wi_rx_intr(sc);
 567                 if (status & WI_EV_ALLOC)
 568                         wi_tx_intr(sc);
 569                 if (status & WI_EV_INFO)
 570                         wi_info_intr(sc);
 571
 572                 if (cmd == POLL_AND_CHECK_STATUS) {
 573                         if (status & WI_EV_INFO)
 574                                 wi_info_intr(sc);
 575                 }
 576
 577                 if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 578                     (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 && !ifq_is_empty(&ifp->if_snd)) {
 579                         wi_start(ifp);
 580                 }
 581                 break;
 582         }
 583 }
 584 #endif /* DEVICE_POLLING */
 585
 586 void
 587 wi_intr(void *arg)
 588 {
 589         struct wi_softc *sc = arg;
 590         struct ifnet *ifp = &sc->sc_ic.ic_if;
 591         u_int16_t status;
 592
 593         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
 594                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 595                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 596                 return;
 597         }
 598
 599         /* Disable interrupts. */
 600         CSR_WRITE_2(sc, WI_INT_EN, 0);
 601
 602         status = CSR_READ_2(sc, WI_EVENT_STAT);
 603         if (status & WI_EV_RX)
 604                 wi_rx_intr(sc);
 605         if (status & WI_EV_ALLOC)
 606                 wi_tx_intr(sc);
 607         if (status & WI_EV_TX_EXC)
 608                 wi_tx_ex_intr(sc);
 609         if (status & WI_EV_INFO)
 610                 wi_info_intr(sc);
 611         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 612             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 613             !ifq_is_empty(&ifp->if_snd))
 614                 wi_start(ifp);
 615
 616         /* Re-enable interrupts. */
 617         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 618
 619         return;
 620 }
 621
 622 void
 623 wi_init(void *arg)
 624 {
 625         struct wi_softc *sc = arg;
 626         struct ifnet *ifp = &sc->sc_if;
 627         struct ieee80211com *ic = &sc->sc_ic;
 628         struct wi_joinreq join;
 629         int i;
 630         int error = 0, wasenabled;
 631
 632         if (sc->wi_gone)
 633                 return;
 634
 635         if ((wasenabled = sc->sc_enabled))
 636                 wi_stop(ifp, 1);
 637         wi_reset(sc);
 638
 639         /* common 802.11 configuration */
 640         ic->ic_flags &= ~IEEE80211_F_IBSSON;
 641         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
 642         switch (ic->ic_opmode) {
 643         case IEEE80211_M_STA:
 644                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
 645                 break;
 646         case IEEE80211_M_IBSS:
 647                 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
 648                 ic->ic_flags |= IEEE80211_F_IBSSON;
 649                 break;
 650         case IEEE80211_M_AHDEMO:
 651                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 652                 break;
 653         case IEEE80211_M_HOSTAP:
 654                 /*
 655                  * For PRISM cards, override the empty SSID, because in
 656                  * HostAP mode the controller will lock up otherwise.
 657                  */
 658                 if (sc->sc_firmware_type == WI_INTERSIL &&
 659                     ic->ic_des_esslen == 0) {
 660                         ic->ic_des_essid[0] = ' ';
 661                         ic->ic_des_esslen = 1;
 662                 }
 663                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
 664                 break;
 665         case IEEE80211_M_MONITOR:
 666                 if (sc->sc_firmware_type == WI_LUCENT)
 667                         wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 668                 wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
 669                 break;
 670         }
 671
 672         /* Intersil interprets this RID as joining ESS even in IBSS mode */
 673         if (sc->sc_firmware_type == WI_LUCENT &&
 674             (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
 675                 wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
 676         else
 677                 wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
 678         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
 679         wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
 680             ic->ic_des_esslen);
 681         wi_write_val(sc, WI_RID_OWN_CHNL,
 682                 ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 683         wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
 684
 685         IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
 686         wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
 687
 688         if (ic->ic_caps & IEEE80211_C_PMGT) {
 689                 wi_write_val(sc, WI_RID_PM_ENABLED,
 690                     (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 691         }
 692
 693         /* not yet common 802.11 configuration */
 694         wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
 695         wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
 696         if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
 697                 wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
 698
 699         /* driver specific 802.11 configuration */
 700         if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
 701                 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
 702         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
 703                 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
 704         if (sc->sc_flags & WI_FLAGS_HAS_MOR)
 705                 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
 706         wi_write_txrate(sc);
 707         wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 708
 709         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 710             sc->sc_firmware_type == WI_INTERSIL) {
 711                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_bintval);
 712                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x03);   /* 1, 2 */
 713                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
 714                 wi_write_val(sc, WI_RID_DTIM_PERIOD, ic->ic_dtim_period);
 715         }
 716
 717         /*
 718          * Initialize promisc mode.
 719          *      Being in the Host-AP mode causes a great
 720          *      deal of pain if primisc mode is set.
 721          *      Therefore we avoid confusing the firmware
 722          *      and always reset promisc mode in Host-AP
 723          *      mode.  Host-AP sees all the packets anyway.
 724          */
 725         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 726             (ifp->if_flags & IFF_PROMISC) != 0) {
 727                 wi_write_val(sc, WI_RID_PROMISC, 1);
 728         } else {
 729                 wi_write_val(sc, WI_RID_PROMISC, 0);
 730         }
 731
 732         /* Configure WEP. */
 733         if (ic->ic_caps & IEEE80211_C_WEP) {
 734                 sc->sc_cnfauthmode = ic->ic_bss->ni_authmode;
 735                 wi_write_wep(sc);
 736         } else {
 737                 sc->sc_encryption = 0;
 738         }
 739
 740         /* Set multicast filter. */
 741         wi_write_multi(sc);
 742
 743         /* Allocate fids for the card */
 744         if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
 745                 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
 746                 if (sc->sc_firmware_type == WI_SYMBOL)
 747                         sc->sc_buflen = 1585;   /* XXX */
 748                 for (i = 0; i < sc->sc_ntxbuf; i++) {
 749                         error = wi_alloc_fid(sc, sc->sc_buflen,
 750                             &sc->sc_txd[i].d_fid);
 751                         if (error) {
 752                                 if_printf(ifp,
 753                                     "tx buffer allocation failed (error %u)\n",
 754                                     error);
 755                                 goto out;
 756                         }
 757                         sc->sc_txd[i].d_len = 0;
 758                 }
 759         }
 760         sc->sc_txcur = sc->sc_txnext = 0;
 761
 762         /* Enable desired port */
 763         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
 764
 765         sc->sc_enabled = 1;
 766         ifp->if_flags |= IFF_RUNNING;
 767         ifp->if_flags &= ~IFF_OACTIVE;
 768         if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
 769             ic->ic_opmode == IEEE80211_M_IBSS ||
 770             ic->ic_opmode == IEEE80211_M_MONITOR ||
 771             ic->ic_opmode == IEEE80211_M_HOSTAP)
 772                 ieee80211_create_ibss(ic, ic->ic_ibss_chan);
 773
 774         /* Enable interrupts if not polling */
 775 #ifdef DEVICE_POLLING
 776         if ((ifp->if_flags & IFF_POLLING) == 0)
 777 #endif
 778                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 779
 780         if (!wasenabled &&
 781             ic->ic_opmode == IEEE80211_M_HOSTAP &&
 782             sc->sc_firmware_type == WI_INTERSIL) {
 783                 /* XXX: some card need to be re-enabled for hostap */
 784                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
 785                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
 786         }
 787
 788         if (ic->ic_opmode == IEEE80211_M_STA &&
 789             ((ic->ic_flags & IEEE80211_F_DESBSSID) ||
 790             ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
 791                 memset(&join, 0, sizeof(join));
 792                 if (ic->ic_flags & IEEE80211_F_DESBSSID)
 793                         IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
 794                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
 795                         join.wi_chan = htole16(
 796                                 ieee80211_chan2ieee(ic, ic->ic_des_chan));
 797                 /* Lucent firmware does not support the JOIN RID. */
 798                 if (sc->sc_firmware_type != WI_LUCENT)
 799                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
 800         }
 801         return;
 802 out:
 803         if (error) {
 804                 if_printf(ifp, "interface not running\n");
 805                 wi_stop(ifp, 1);
 806         }
 807
 808         DPRINTF((ifp, "wi_init: return %d\n", error));
 809         return;
 810 }
 811
 812 void
 813 wi_stop(struct ifnet *ifp, int disable)
 814 {
 815         struct ieee80211com *ic = (struct ieee80211com *) ifp;
 816         struct wi_softc *sc = ifp->if_softc;
 817
 818         DELAY(100000);
 819
 820         ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
 821         if (sc->sc_enabled && !sc->wi_gone) {
 822                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 823                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
 824                 if (disable) {
 825 #ifdef __NetBSD__
 826                         if (sc->sc_disable)
 827                                 (*sc->sc_disable)(sc);
 828 #endif
 829                         sc->sc_enabled = 0;
 830                 }
 831         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
 832             sc->sc_enabled = 0;
 833
 834         sc->sc_tx_timer = 0;
 835         sc->sc_scan_timer = 0;
 836         sc->sc_false_syns = 0;
 837         sc->sc_naps = 0;
 838         ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING);
 839         ifp->if_timer = 0;
 840 }
 841
 842 static void
 843 wi_start(struct ifnet *ifp)
 844 {
 845         struct wi_softc *sc = ifp->if_softc;
 846         struct ieee80211com *ic = &sc->sc_ic;
 847         struct ieee80211_node *ni;
 848         struct ieee80211_frame *wh;
 849         struct mbuf *m0;
 850         struct wi_frame frmhdr;
 851         int cur, fid, off, error;
 852
 853         if (sc->wi_gone || (sc->sc_flags & WI_FLAGS_OUTRANGE))
 854                 return;
 855
 856         memset(&frmhdr, 0, sizeof(frmhdr));
 857         cur = sc->sc_txnext;
 858         for (;;) {
 859                 IF_POLL(&ic->ic_mgtq, m0);
 860                 if (m0 != NULL) {
 861                         if (sc->sc_txd[cur].d_len != 0) {
 862                                 ifp->if_flags |= IFF_OACTIVE;
 863                                 break;
 864                         }
 865                         IF_DEQUEUE(&ic->ic_mgtq, m0);
 866                         /*
 867                          * Hack!  The referenced node pointer is in the
 868                          * rcvif field of the packet header.  This is
 869                          * placed there by ieee80211_mgmt_output because
 870                          * we need to hold the reference with the frame
 871                          * and there's no other way (other than packet
 872                          * tags which we consider too expensive to use)
 873                          * to pass it along.
 874                          */
 875                         ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
 876                         m0->m_pkthdr.rcvif = NULL;
 877
 878                         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 879                             (caddr_t)&frmhdr.wi_ehdr);
 880                         frmhdr.wi_ehdr.ether_type = 0;
 881                         wh = mtod(m0, struct ieee80211_frame *);
 882                 } else {
 883                         struct ether_header *eh;
 884
 885                         if (ic->ic_state != IEEE80211_S_RUN)
 886                                 break;
 887                         m0 = ifq_poll(&ifp->if_snd);
 888                         if (m0 == NULL)
 889                                 break;
 890                         if (sc->sc_txd[cur].d_len != 0) {
 891                                 ifp->if_flags |= IFF_OACTIVE;
 892                                 break;
 893                         }
 894
 895                         ifq_dequeue(&ifp->if_snd, m0);
 896                         if (m0->m_len < sizeof(struct ether_header)) {
 897                                 m0 = m_pullup(m0, sizeof(struct ether_header));
 898                                 if (m0 == NULL) {
 899                                         ifp->if_oerrors++;
 900                                         continue;
 901                                 }
 902                         }
 903
 904                         eh = mtod(m0, struct ether_header *);
 905                         ni = ieee80211_find_txnode(ic, eh->ether_dhost);
 906                         if (ni == NULL) {
 907                                 m_freem(m0);
 908                                 ifp->if_oerrors++;
 909                                 continue;
 910                         }
 911
 912                         ifp->if_opackets++;
 913                         m_copydata(m0, 0, ETHER_HDR_LEN,
 914                             (caddr_t)&frmhdr.wi_ehdr);
 915                         BPF_MTAP(ifp, m0);
 916
 917                         m0 = ieee80211_encap(ic, m0, ni);
 918                         if (m0 == NULL) {
 919                                 ieee80211_free_node(ni);
 920                                 ifp->if_oerrors++;
 921                                 continue;
 922                         }
 923                         wh = mtod(m0, struct ieee80211_frame *);
 924                 }
 925
 926                 if (ic->ic_rawbpf != NULL)
 927                         bpf_mtap(ic->ic_rawbpf, m0);
 928
 929                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 930                 /* XXX check key for SWCRYPT instead of using operating mode */
 931                 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) &&
 932                     (sc->sc_encryption & HOST_ENCRYPT)) {
 933                         if (ieee80211_crypto_encap(ic, ni, m0) == NULL) {
 934                                 ieee80211_free_node(ni);
 935                                 m_freem(m0);
 936                                 ifp->if_oerrors++;
 937                                 continue;
 938                         }
 939                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 940                 }
 941
 942                 if (sc->sc_drvbpf) {
 943                         sc->sc_tx_th.wt_rate =
 944                                 ni->ni_rates.rs_rates[ni->ni_txrate];
 945                         bpf_ptap(sc->sc_drvbpf, m0, &sc->sc_tx_th,
 946                                  sc->sc_tx_th_len);
 947                 }
 948
 949                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 950                     (caddr_t)&frmhdr.wi_whdr);
 951                 m_adj(m0, sizeof(struct ieee80211_frame));
 952                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 953                 if (IFF_DUMPPKTS(ifp))
 954                         wi_dump_pkt(&frmhdr, NULL, -1);
 955                 fid = sc->sc_txd[cur].d_fid;
 956                 off = sizeof(frmhdr);
 957                 error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
 958                      || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 959                 m_freem(m0);
 960                 ieee80211_free_node(ni);
 961                 if (error) {
 962                         ifp->if_oerrors++;
 963                         continue;
 964                 }
 965                 sc->sc_txd[cur].d_len = off;
 966                 if (sc->sc_txcur == cur) {
 967                         if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 968                                 if_printf(ifp, "xmit failed\n");
 969                                 sc->sc_txd[cur].d_len = 0;
 970                                 continue;
 971                         }
 972                         sc->sc_tx_timer = 5;
 973                         ifp->if_timer = 1;
 974                 }
 975                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 976         }
 977 }
 978
 979 static int
 980 wi_reset(struct wi_softc *sc)
 981 {
 982         struct ieee80211com *ic = &sc->sc_ic;
 983         struct ifnet *ifp = &ic->ic_if;
 984 #define WI_INIT_TRIES 3
 985         int i;
 986         int error = 0;
 987         int tries;
 988
 989         /* Symbol firmware cannot be initialized more than once */
 990         if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
 991                 return (0);
 992         if (sc->sc_firmware_type == WI_SYMBOL)
 993                 tries = 1;
 994         else
 995                 tries = WI_INIT_TRIES;
 996
 997         for (i = 0; i < tries; i++) {
 998                 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
 999                         break;
1000                 DELAY(WI_DELAY * 1000);
1001         }
1002         sc->sc_reset = 1;
1003
1004         if (i == tries) {
1005                 if_printf(ifp, "init failed\n");
1006                 return (error);
1007         }
1008
1009         CSR_WRITE_2(sc, WI_INT_EN, 0);
1010         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1011
1012         /* Calibrate timer. */
1013         wi_write_val(sc, WI_RID_TICK_TIME, 8);
1014
1015         return (0);
1016 #undef WI_INIT_TRIES
1017 }
1018
1019 static void
1020 wi_watchdog(struct ifnet *ifp)
1021 {
1022         struct wi_softc *sc = ifp->if_softc;
1023
1024         ifp->if_timer = 0;
1025         if (!sc->sc_enabled)
1026                 return;
1027
1028         if (sc->sc_tx_timer) {
1029                 if (--sc->sc_tx_timer == 0) {
1030                         if_printf(ifp, "device timeout\n");
1031                         ifp->if_oerrors++;
1032                         wi_init(ifp->if_softc);
1033                         return;
1034                 }
1035                 ifp->if_timer = 1;
1036         }
1037
1038         if (sc->sc_scan_timer) {
1039                 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
1040                     sc->sc_firmware_type == WI_INTERSIL) {
1041                         DPRINTF((ifp, "wi_watchdog: inquire scan\n"));
1042                         wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
1043                 }
1044                 if (sc->sc_scan_timer)
1045                         ifp->if_timer = 1;
1046         }
1047
1048         /* TODO: rate control */
1049         ieee80211_watchdog(&sc->sc_ic);
1050 }
1051
1052 static int
1053 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1054 {
1055         struct wi_softc *sc = ifp->if_softc;
1056         struct ieee80211com *ic = &sc->sc_ic;
1057         struct ifreq *ifr = (struct ifreq *)data;
1058         struct ieee80211req *ireq;
1059         u_int8_t nodename[IEEE80211_NWID_LEN];
1060         int error = 0;
1061         struct wi_req wreq;
1062
1063         if (sc->wi_gone) {
1064                 error = ENODEV;
1065                 goto out;
1066         }
1067
1068         switch (cmd) {
1069         case SIOCSIFFLAGS:
1070                 /*
1071                  * Can't do promisc and hostap at the same time.  If all that's
1072                  * changing is the promisc flag, try to short-circuit a call to
1073                  * wi_init() by just setting PROMISC in the hardware.
1074                  */
1075                 if (ifp->if_flags & IFF_UP) {
1076                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1077                             ifp->if_flags & IFF_RUNNING) {
1078                                 if (ifp->if_flags & IFF_PROMISC &&
1079                                     !(sc->sc_if_flags & IFF_PROMISC)) {
1080                                         wi_write_val(sc, WI_RID_PROMISC, 1);
1081                                 } else if (!(ifp->if_flags & IFF_PROMISC) &&
1082                                     sc->sc_if_flags & IFF_PROMISC) {
1083                                         wi_write_val(sc, WI_RID_PROMISC, 0);
1084                                 } else {
1085                                         wi_init(sc);
1086                                 }
1087                         } else {
1088                                 wi_init(sc);
1089                         }
1090                 } else {
1091                         if (ifp->if_flags & IFF_RUNNING) {
1092                                 wi_stop(ifp, 1);
1093                         }
1094                         sc->wi_gone = 0;
1095                 }
1096                 sc->sc_if_flags = ifp->if_flags;
1097                 error = 0;
1098                 break;
1099         case SIOCADDMULTI:
1100         case SIOCDELMULTI:
1101                 error = wi_write_multi(sc);
1102                 break;
1103         case SIOCGIFGENERIC:
1104                 error = wi_get_cfg(ifp, cmd, data, cr);
1105                 break;
1106         case SIOCSIFGENERIC:
1107                 error = suser_cred(cr, NULL_CRED_OKAY);
1108                 if (error)
1109                         break;
1110                 error = wi_set_cfg(ifp, cmd, data);
1111                 break;
1112         case SIOCGPRISM2DEBUG:
1113                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1114                 if (error)
1115                         break;
1116                 if (!(ifp->if_flags & IFF_RUNNING) ||
1117                     sc->sc_firmware_type == WI_LUCENT) {
1118                         error = EIO;
1119                         break;
1120                 }
1121                 error = wi_get_debug(sc, &wreq);
1122                 if (error == 0)
1123                         error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
1124                 break;
1125         case SIOCSPRISM2DEBUG:
1126                 if ((error = suser_cred(cr, NULL_CRED_OKAY)))
1127                         goto out;
1128                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1129                 if (error)
1130                         break;
1131                 error = wi_set_debug(sc, &wreq);
1132                 break;
1133         case SIOCG80211:
1134                 ireq = (struct ieee80211req *) data;
1135                 switch (ireq->i_type) {
1136                 case IEEE80211_IOC_STATIONNAME:
1137                         ireq->i_len = sc->sc_nodelen + 1;
1138                         error = copyout(sc->sc_nodename, ireq->i_data,
1139                                         ireq->i_len);
1140                         break;
1141                 default:
1142                         error = ieee80211_ioctl(ic, cmd, data, cr);
1143                         break;
1144                 }
1145                 break;
1146         case SIOCS80211:
1147                 error = suser_cred(cr, NULL_CRED_OKAY);
1148                 if (error)
1149                         break;
1150                 ireq = (struct ieee80211req *) data;
1151                 switch (ireq->i_type) {
1152                 case IEEE80211_IOC_STATIONNAME:
1153                         if (ireq->i_val != 0 ||
1154                             ireq->i_len > IEEE80211_NWID_LEN) {
1155                                 error = EINVAL;
1156                                 break;
1157                         }
1158                         memset(nodename, 0, IEEE80211_NWID_LEN);
1159                         error = copyin(ireq->i_data, nodename, ireq->i_len);
1160                         if (error)
1161                                 break;
1162                         if (sc->sc_enabled) {
1163                                 error = wi_write_ssid(sc, WI_RID_NODENAME,
1164                                         nodename, ireq->i_len);
1165                                 if (error)
1166                                         break;
1167                         }
1168                         memcpy(sc->sc_nodename, nodename, IEEE80211_NWID_LEN);
1169                         sc->sc_nodelen = ireq->i_len;
1170                         break;
1171                 default:
1172                         error = ieee80211_ioctl(ic, cmd, data, cr);
1173                         break;
1174                 }
1175                 break;
1176         case SIOCSIFCAP:
1177                 if (ifp->if_flags & IFF_RUNNING)
1178                         wi_init(sc);
1179                 break;
1180         default:
1181                 error = ieee80211_ioctl(ic, cmd, data, cr);
1182                 break;
1183         }
1184         if (error == ENETRESET) {
1185                 if (sc->sc_enabled)
1186                         wi_init(sc);    /* XXX no error return */
1187                 error = 0;
1188         }
1189 out:
1190         return error;
1191 }
1192
1193 static int
1194 wi_media_change(struct ifnet *ifp)
1195 {
1196         struct wi_softc *sc = ifp->if_softc;
1197         int error;
1198
1199         error = ieee80211_media_change(ifp);
1200         if (error == ENETRESET) {
1201                 if (sc->sc_enabled)
1202                         wi_init(sc);    /* XXX no error return */
1203                 error = 0;
1204         }
1205         return error;
1206 }
1207
1208 static void
1209 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1210 {
1211         struct wi_softc *sc = ifp->if_softc;
1212         struct ieee80211com *ic = &sc->sc_ic;
1213         u_int16_t val;
1214         int rate, len;
1215
1216         if (sc->wi_gone) {      /* hardware gone (e.g. ejected) */
1217                 imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
1218                 imr->ifm_status = 0;
1219                 return;
1220         }
1221
1222         imr->ifm_status = IFM_AVALID;
1223         imr->ifm_active = IFM_IEEE80211;
1224         if (!sc->sc_enabled) {  /* port !enabled, have no status */
1225                 imr->ifm_active |= IFM_NONE;
1226                 return;
1227         }
1228         if (ic->ic_state == IEEE80211_S_RUN &&
1229             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
1230                 imr->ifm_status |= IFM_ACTIVE;
1231         len = sizeof(val);
1232         if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
1233             len == sizeof(val)) {
1234                 /* convert to 802.11 rate */
1235                 val = le16toh(val);
1236                 rate = val * 2;
1237                 if (sc->sc_firmware_type == WI_LUCENT) {
1238                         if (rate == 10)
1239                                 rate = 11;      /* 5.5Mbps */
1240                 } else {
1241                         if (rate == 4*2)
1242                                 rate = 11;      /* 5.5Mbps */
1243                         else if (rate == 8*2)
1244                                 rate = 22;      /* 11Mbps */
1245                 }
1246         } else {
1247                 rate = 0;
1248         }
1249         imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
1250         switch (ic->ic_opmode) {
1251         case IEEE80211_M_STA:
1252                 break;
1253         case IEEE80211_M_IBSS:
1254                 imr->ifm_active |= IFM_IEEE80211_ADHOC;
1255                 break;
1256         case IEEE80211_M_AHDEMO:
1257                 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
1258                 break;
1259         case IEEE80211_M_HOSTAP:
1260                 imr->ifm_active |= IFM_IEEE80211_HOSTAP;
1261                 break;
1262         case IEEE80211_M_MONITOR:
1263                 imr->ifm_active |= IFM_IEEE80211_MONITOR;
1264                 break;
1265         }
1266 }
1267
1268 static void
1269 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1270 {
1271         struct ieee80211com *ic = &sc->sc_ic;
1272         struct ieee80211_node *ni = ic->ic_bss;
1273         struct ifnet *ifp = &ic->ic_if;
1274
1275         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1276                 return;
1277
1278         DPRINTF((ifp, "wi_sync_bssid: bssid %6D -> %6D ?\n", ni->ni_bssid, ":",
1279             new_bssid, ":"));
1280
1281         /* In promiscuous mode, the BSSID field is not a reliable
1282          * indicator of the firmware's BSSID. Damp spurious
1283          * change-of-BSSID indications.
1284          */
1285         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1286             !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
1287                          WI_MAX_FALSE_SYNS))
1288                 return;
1289
1290         sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
1291         /*
1292          * XXX hack; we should create a new node with the new bssid
1293          * and replace the existing ic_bss with it but since we don't
1294          * process management frames to collect state we cheat by
1295          * reusing the existing node as we know wi_newstate will be
1296          * called and it will overwrite the node state.
1297          */
1298         ieee80211_sta_join(ic, ieee80211_ref_node(ni));
1299 }
1300
1301 static void
1302 wi_rx_monitor(struct wi_softc *sc, int fid)
1303 {
1304         struct ieee80211com *ic = &sc->sc_ic;
1305         struct ifnet *ifp = &ic->ic_if;
1306         struct wi_frame *rx_frame;
1307         struct mbuf *m;
1308         int datlen, hdrlen;
1309
1310         /* first allocate mbuf for packet storage */
1311         m = m_getcl(MB_DONTWAIT, MT_DATA, 0);
1312         if (m == NULL) {
1313                 ifp->if_ierrors++;
1314                 return;
1315         }
1316
1317         m->m_pkthdr.rcvif = ifp;
1318
1319         /* now read wi_frame first so we know how much data to read */
1320         if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
1321                 ifp->if_ierrors++;
1322                 goto done;
1323         }
1324
1325         rx_frame = mtod(m, struct wi_frame *);
1326
1327         switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
1328         case 7:
1329                 switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1330                 case IEEE80211_FC0_TYPE_DATA:
1331                         hdrlen = WI_DATA_HDRLEN;
1332                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1333                         break;
1334                 case IEEE80211_FC0_TYPE_MGT:
1335                         hdrlen = WI_MGMT_HDRLEN;
1336                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1337                         break;
1338                 case IEEE80211_FC0_TYPE_CTL:
1339                         /*
1340                          * prism2 cards don't pass control packets
1341                          * down properly or consistently, so we'll only
1342                          * pass down the header.
1343                          */
1344                         hdrlen = WI_CTL_HDRLEN;
1345                         datlen = 0;
1346                         break;
1347                 default:
1348                         if_printf(ifp, "received packet of unknown type "
1349                                 "on port 7\n");
1350                         ifp->if_ierrors++;
1351                         goto done;
1352                 }
1353                 break;
1354         case 0:
1355                 hdrlen = WI_DATA_HDRLEN;
1356                 datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1357                 break;
1358         default:
1359                 if_printf(ifp, "received packet on invalid "
1360                     "port (wi_status=0x%x)\n", rx_frame->wi_status);
1361                 ifp->if_ierrors++;
1362                 goto done;
1363         }
1364
1365         if (hdrlen + datlen + 2 > MCLBYTES) {
1366                 if_printf(ifp, "oversized packet received "
1367                     "(wi_dat_len=%d, wi_status=0x%x)\n",
1368                     datlen, rx_frame->wi_status);
1369                 ifp->if_ierrors++;
1370                 goto done;
1371         }
1372
1373         if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
1374             datlen + 2) == 0) {
1375                 m->m_pkthdr.len = m->m_len = hdrlen + datlen;
1376                 ifp->if_ipackets++;
1377                 BPF_MTAP(ifp, m);       /* Handle BPF listeners. */
1378         } else
1379                 ifp->if_ierrors++;
1380 done:
1381         m_freem(m);
1382 }
1383
1384 static void
1385 wi_rx_intr(struct wi_softc *sc)
1386 {
1387         struct ieee80211com *ic = &sc->sc_ic;
1388         struct ifnet *ifp = &ic->ic_if;
1389         struct wi_frame frmhdr;
1390         struct mbuf *m;
1391         struct ieee80211_frame *wh;
1392         struct ieee80211_node *ni;
1393         int fid, len, off, rssi;
1394         u_int8_t dir;
1395         u_int16_t status;
1396         u_int32_t rstamp;
1397
1398         fid = CSR_READ_2(sc, WI_RX_FID);
1399
1400         if (sc->wi_debug.wi_monitor) {
1401                 /*
1402                  * If we are in monitor mode just
1403                  * read the data from the device.
1404                  */
1405                 wi_rx_monitor(sc, fid);
1406                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1407                 return;
1408         }
1409
1410         /* First read in the frame header */
1411         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1412                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1413                 ifp->if_ierrors++;
1414                 DPRINTF((ifp, "wi_rx_intr: read fid %x failed\n", fid));
1415                 return;
1416         }
1417
1418         if (IFF_DUMPPKTS(ifp))
1419                 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
1420
1421         /*
1422          * Drop undecryptable or packets with receive errors here
1423          */
1424         status = le16toh(frmhdr.wi_status);
1425         if (status & WI_STAT_ERRSTAT) {
1426                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1427                 ifp->if_ierrors++;
1428                 DPRINTF((ifp, "wi_rx_intr: fid %x error status %x\n",
1429                          fid, status));
1430                 return;
1431         }
1432         rssi = frmhdr.wi_rx_signal;
1433         rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1434             le16toh(frmhdr.wi_rx_tstamp1);
1435
1436         len = le16toh(frmhdr.wi_dat_len);
1437         off = ALIGN(sizeof(struct ieee80211_frame));
1438
1439         /*
1440          * Sometimes the PRISM2.x returns bogusly large frames. Except
1441          * in monitor mode, just throw them away.
1442          */
1443         if (off + len > MCLBYTES) {
1444                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1445                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1446                         ifp->if_ierrors++;
1447                         DPRINTF((ifp, "wi_rx_intr: oversized packet\n"));
1448                         return;
1449                 } else
1450                         len = 0;
1451         }
1452
1453         m = m_getl(off + len, MB_DONTWAIT, MT_DATA, M_PKTHDR, NULL);
1454         if (m == NULL) {
1455                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1456                 ifp->if_ierrors++;
1457                 DPRINTF((ifp, "wi_rx_intr: m_getl failed\n"));
1458                 return;
1459         }
1460
1461         m->m_data += off - sizeof(struct ieee80211_frame);
1462         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1463         wi_read_bap(sc, fid, sizeof(frmhdr),
1464             m->m_data + sizeof(struct ieee80211_frame), len);
1465         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1466         m->m_pkthdr.rcvif = ifp;
1467
1468         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1469
1470         wh = mtod(m, struct ieee80211_frame *);
1471         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1472                 /*
1473                  * WEP is decrypted by hardware and the IV
1474                  * is stripped.  Clear WEP bit so we don't
1475                  * try to process it in ieee80211_input.
1476                  * XXX fix for TKIP, et. al.
1477                  */
1478                 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
1479         }
1480
1481         if (sc->sc_drvbpf) {
1482                 /* XXX replace divide by table */
1483                 sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
1484                 sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
1485                 sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
1486                 sc->sc_rx_th.wr_flags = 0;
1487                 if (frmhdr.wi_status & WI_STAT_PCF)
1488                         sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1489                 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_rx_th, sc->sc_rx_th_len);
1490         }
1491
1492         /* synchronize driver's BSSID with firmware's BSSID */
1493         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1494         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1495                 wi_sync_bssid(sc, wh->i_addr3);
1496
1497         /*
1498          * Locate the node for sender, track state, and
1499          * then pass this node (referenced) up to the 802.11
1500          * layer for its use.
1501          */
1502         ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *) wh);
1503         /*
1504          * Send frame up for processing.
1505          */
1506         ieee80211_input(ic, m, ni, rssi, rstamp);
1507         /*
1508          * The frame may have caused the node to be marked for
1509          * reclamation (e.g. in response to a DEAUTH message)
1510          * so use free_node here instead of unref_node.
1511          */
1512         ieee80211_free_node(ni);
1513 }
1514
1515 static void
1516 wi_tx_ex_intr(struct wi_softc *sc)
1517 {
1518         struct ieee80211com *ic = &sc->sc_ic;
1519         struct ifnet *ifp = &ic->ic_if;
1520         struct wi_frame frmhdr;
1521         int fid;
1522
1523         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1524         /* Read in the frame header */
1525         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1526                 u_int16_t status = le16toh(frmhdr.wi_status);
1527
1528                 /*
1529                  * Spontaneous station disconnects appear as xmit
1530                  * errors.  Don't announce them and/or count them
1531                  * as an output error.
1532                  */
1533                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1534                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1535                                 if_printf(ifp, "tx failed");
1536                                 if (status & WI_TXSTAT_RET_ERR)
1537                                         kprintf(", retry limit exceeded");
1538                                 if (status & WI_TXSTAT_AGED_ERR)
1539                                         kprintf(", max transmit lifetime exceeded");
1540                                 if (status & WI_TXSTAT_DISCONNECT)
1541                                         kprintf(", port disconnected");
1542                                 if (status & WI_TXSTAT_FORM_ERR)
1543                                         kprintf(", invalid format (data len %u src %6D)",
1544                                                 le16toh(frmhdr.wi_dat_len),
1545                                                 frmhdr.wi_ehdr.ether_shost, ":");
1546                                 if (status & ~0xf)
1547                                         kprintf(", status=0x%x", status);
1548                                 kprintf("\n");
1549                         }
1550                         ifp->if_oerrors++;
1551                 } else {
1552                         DPRINTF((ifp, "port disconnected\n"));
1553                         ifp->if_collisions++;   /* XXX */
1554                 }
1555         } else
1556                 DPRINTF((ifp, "wi_tx_ex_intr: read fid %x failed\n", fid));
1557         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1558 }
1559
1560 static void
1561 wi_tx_intr(struct wi_softc *sc)
1562 {
1563         struct ieee80211com *ic = &sc->sc_ic;
1564         struct ifnet *ifp = &ic->ic_if;
1565         int fid, cur;
1566
1567         if (sc->wi_gone)
1568                 return;
1569
1570         fid = CSR_READ_2(sc, WI_ALLOC_FID);
1571         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1572
1573         cur = sc->sc_txcur;
1574         if (sc->sc_txd[cur].d_fid != fid) {
1575                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1576                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1577                 return;
1578         }
1579         sc->sc_tx_timer = 0;
1580         sc->sc_txd[cur].d_len = 0;
1581         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1582         if (sc->sc_txd[cur].d_len == 0)
1583                 ifp->if_flags &= ~IFF_OACTIVE;
1584         else {
1585                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1586                     0, 0)) {
1587                         if_printf(ifp, "xmit failed\n");
1588                         sc->sc_txd[cur].d_len = 0;
1589                 } else {
1590                         sc->sc_tx_timer = 5;
1591                         ifp->if_timer = 1;
1592                 }
1593         }
1594 }
1595
1596 static void
1597 wi_info_intr(struct wi_softc *sc)
1598 {
1599         struct ieee80211com *ic = &sc->sc_ic;
1600         struct ifnet *ifp = &ic->ic_if;
1601         int i, fid, len, off;
1602         u_int16_t ltbuf[2];
1603         u_int16_t stat;
1604         u_int32_t *ptr;
1605
1606         fid = CSR_READ_2(sc, WI_INFO_FID);
1607         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1608
1609         switch (le16toh(ltbuf[1])) {
1610
1611         case WI_INFO_LINK_STAT:
1612                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1613                 DPRINTF((ifp, "wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1614                 switch (le16toh(stat)) {
1615                 case WI_INFO_LINK_STAT_CONNECTED:
1616                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1617                         if (ic->ic_state == IEEE80211_S_RUN &&
1618                             ic->ic_opmode != IEEE80211_M_IBSS)
1619                                 break;
1620                         /* FALLTHROUGH */
1621                 case WI_INFO_LINK_STAT_AP_CHG:
1622                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1623                         break;
1624                 case WI_INFO_LINK_STAT_AP_INR:
1625                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1626                         break;
1627                 case WI_INFO_LINK_STAT_AP_OOR:
1628                         if (sc->sc_firmware_type == WI_SYMBOL &&
1629                             sc->sc_scan_timer > 0) {
1630                                 if (wi_cmd(sc, WI_CMD_INQUIRE,
1631                                     WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
1632                                         sc->sc_scan_timer = 0;
1633                                 break;
1634                         }
1635                         if (ic->ic_opmode == IEEE80211_M_STA)
1636                                 sc->sc_flags |= WI_FLAGS_OUTRANGE;
1637                         break;
1638                 case WI_INFO_LINK_STAT_DISCONNECTED:
1639                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1640                         if (ic->ic_opmode == IEEE80211_M_STA)
1641                                 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
1642                         break;
1643                 }
1644                 break;
1645
1646         case WI_INFO_COUNTERS:
1647                 /* some card versions have a larger stats structure */
1648                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1649                 ptr = (u_int32_t *)&sc->sc_stats;
1650                 off = sizeof(ltbuf);
1651                 for (i = 0; i < len; i++, off += 2, ptr++) {
1652                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1653 #ifdef WI_HERMES_STATS_WAR
1654                         if (stat & 0xf000)
1655                                 stat = ~stat;
1656 #endif
1657                         *ptr += stat;
1658                 }
1659                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1660                     sc->sc_stats.wi_tx_multi_retries +
1661                     sc->sc_stats.wi_tx_retry_limit;
1662                 break;
1663
1664         case WI_INFO_SCAN_RESULTS:
1665         case WI_INFO_HOST_SCAN_RESULTS:
1666                 wi_scan_result(sc, fid, le16toh(ltbuf[0]));
1667                 break;
1668
1669         default:
1670                 DPRINTF((ifp, "wi_info_intr: got fid %x type %x len %d\n", fid,
1671                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1672                 break;
1673         }
1674         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1675 }
1676
1677 static int
1678 wi_write_multi(struct wi_softc *sc)
1679 {
1680         struct ifnet *ifp = &sc->sc_ic.ic_if;
1681         int n;
1682         struct ifmultiaddr *ifma;
1683         struct wi_mcast mlist;
1684
1685         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1686 allmulti:
1687                 memset(&mlist, 0, sizeof(mlist));
1688                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1689                     sizeof(mlist));
1690         }
1691
1692         n = 0;
1693         LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1694                 if (ifma->ifma_addr->sa_family != AF_LINK)
1695                         continue;
1696                 if (n >= 16)
1697                         goto allmulti;
1698                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1699                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1700                 n++;
1701         }
1702         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1703             IEEE80211_ADDR_LEN * n);
1704 }
1705
1706 static void
1707 wi_read_nicid(struct wi_softc *sc)
1708 {
1709         struct wi_card_ident *id;
1710         char *p;
1711         int len;
1712         u_int16_t ver[4];
1713
1714         /* getting chip identity */
1715         memset(ver, 0, sizeof(ver));
1716         len = sizeof(ver);
1717         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1718         if_printf(&sc->sc_ic.ic_if, "using ");
1719
1720         sc->sc_firmware_type = WI_NOTYPE;
1721         for (id = wi_card_ident; id->card_name != NULL; id++) {
1722                 if (le16toh(ver[0]) == id->card_id) {
1723                         kprintf("%s", id->card_name);
1724                         sc->sc_firmware_type = id->firm_type;
1725                         break;
1726                 }
1727         }
1728         if (sc->sc_firmware_type == WI_NOTYPE) {
1729                 if (le16toh(ver[0]) & 0x8000) {
1730                         kprintf("Unknown PRISM2 chip");
1731                         sc->sc_firmware_type = WI_INTERSIL;
1732                 } else {
1733                         kprintf("Unknown Lucent chip");
1734                         sc->sc_firmware_type = WI_LUCENT;
1735                 }
1736         }
1737
1738         /* get primary firmware version (Only Prism chips) */
1739         if (sc->sc_firmware_type != WI_LUCENT) {
1740                 memset(ver, 0, sizeof(ver));
1741                 len = sizeof(ver);
1742                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1743                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1744                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
1745         }
1746
1747         /* get station firmware version */
1748         memset(ver, 0, sizeof(ver));
1749         len = sizeof(ver);
1750         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1751         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1752             le16toh(ver[3]) * 100 + le16toh(ver[1]);
1753         if (sc->sc_firmware_type == WI_INTERSIL &&
1754             (sc->sc_sta_firmware_ver == 10102 ||
1755              sc->sc_sta_firmware_ver == 20102)) {
1756                 char ident[12];
1757                 memset(ident, 0, sizeof(ident));
1758                 len = sizeof(ident);
1759                 /* value should be the format like "V2.00-11" */
1760                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1761                     *(p = (char *)ident) >= 'A' &&
1762                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1763                         sc->sc_firmware_type = WI_SYMBOL;
1764                         sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1765                             (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1766                             (p[6] - '0') * 10 + (p[7] - '0');
1767                 }
1768         }
1769         kprintf("\n");
1770         if_printf(&sc->sc_ic.ic_if, "%s Firmware: ",
1771              sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
1772             (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
1773         if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
1774                 kprintf("Primary (%u.%u.%u), ",
1775                     sc->sc_pri_firmware_ver / 10000,
1776                     (sc->sc_pri_firmware_ver % 10000) / 100,
1777                     sc->sc_pri_firmware_ver % 100);
1778         kprintf("Station (%u.%u.%u)\n",
1779             sc->sc_sta_firmware_ver / 10000,
1780             (sc->sc_sta_firmware_ver % 10000) / 100,
1781             sc->sc_sta_firmware_ver % 100);
1782 }
1783
1784 static int
1785 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1786 {
1787         struct wi_ssid ssid;
1788
1789         if (buflen > IEEE80211_NWID_LEN)
1790                 return ENOBUFS;
1791         memset(&ssid, 0, sizeof(ssid));
1792         ssid.wi_len = htole16(buflen);
1793         memcpy(ssid.wi_ssid, buf, buflen);
1794         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1795 }
1796
1797 static int
1798 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1799 {
1800         struct wi_softc *sc = ifp->if_softc;
1801         struct ieee80211com *ic = &sc->sc_ic;
1802         struct ifreq *ifr = (struct ifreq *)data;
1803         struct wi_req wreq;
1804         struct wi_scan_res *res;
1805         size_t reslen;
1806         int len, n, error, mif, val, off, i;
1807
1808         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1809         if (error)
1810                 return error;
1811         len = (wreq.wi_len - 1) * 2;
1812         if (len < sizeof(u_int16_t))
1813                 return ENOSPC;
1814         if (len > sizeof(wreq.wi_val))
1815                 len = sizeof(wreq.wi_val);
1816
1817         switch (wreq.wi_type) {
1818
1819         case WI_RID_IFACE_STATS:
1820                 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
1821                 if (len < sizeof(sc->sc_stats))
1822                         error = ENOSPC;
1823                 else
1824                         len = sizeof(sc->sc_stats);
1825                 break;
1826
1827         case WI_RID_ENCRYPTION:
1828         case WI_RID_TX_CRYPT_KEY:
1829         case WI_RID_DEFLT_CRYPT_KEYS:
1830         case WI_RID_TX_RATE:
1831                 return ieee80211_cfgget(ic, cmd, data, cr);
1832
1833         case WI_RID_MICROWAVE_OVEN:
1834                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
1835                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1836                             &len);
1837                         break;
1838                 }
1839                 wreq.wi_val[0] = htole16(sc->sc_microwave_oven);
1840                 len = sizeof(u_int16_t);
1841                 break;
1842
1843         case WI_RID_DBM_ADJUST:
1844                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
1845                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1846                             &len);
1847                         break;
1848                 }
1849                 wreq.wi_val[0] = htole16(sc->sc_dbm_offset);
1850                 len = sizeof(u_int16_t);
1851                 break;
1852
1853         case WI_RID_ROAMING_MODE:
1854                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
1855                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1856                             &len);
1857                         break;
1858                 }
1859                 wreq.wi_val[0] = htole16(sc->sc_roaming_mode);
1860                 len = sizeof(u_int16_t);
1861                 break;
1862
1863         case WI_RID_SYSTEM_SCALE:
1864                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
1865                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1866                             &len);
1867                         break;
1868                 }
1869                 wreq.wi_val[0] = htole16(sc->sc_system_scale);
1870                 len = sizeof(u_int16_t);
1871                 break;
1872
1873         case WI_RID_FRAG_THRESH:
1874                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
1875                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1876                             &len);
1877                         break;
1878                 }
1879                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
1880                 len = sizeof(u_int16_t);
1881                 break;
1882
1883         case WI_RID_READ_APS:
1884                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1885                         return ieee80211_cfgget(ic, cmd, data, cr);
1886                 if (sc->sc_scan_timer > 0) {
1887                         error = EINPROGRESS;
1888                         break;
1889                 }
1890                 n = sc->sc_naps;
1891                 if (len < sizeof(n)) {
1892                         error = ENOSPC;
1893                         break;
1894                 }
1895                 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
1896                         n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
1897                 len = sizeof(n) + sizeof(struct wi_apinfo) * n;
1898                 memcpy(wreq.wi_val, &n, sizeof(n));
1899                 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
1900                     sizeof(struct wi_apinfo) * n);
1901                 break;
1902
1903         case WI_RID_PRISM2:
1904                 wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
1905                 len = sizeof(u_int16_t);
1906                 break;
1907
1908         case WI_RID_MIF:
1909                 mif = wreq.wi_val[0];
1910                 error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
1911                 val = CSR_READ_2(sc, WI_RESP0);
1912                 wreq.wi_val[0] = val;
1913                 len = sizeof(u_int16_t);
1914                 break;
1915
1916         case WI_RID_ZERO_CACHE:
1917         case WI_RID_PROCFRAME:          /* ignore for compatibility */
1918                 /* XXX ??? */
1919                 break;
1920
1921         case WI_RID_READ_CACHE:
1922                 return ieee80211_cfgget(ic, cmd, data, cr);
1923
1924         case WI_RID_SCAN_RES:           /* compatibility interface */
1925                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1926                         return ieee80211_cfgget(ic, cmd, data, cr);
1927                 if (sc->sc_scan_timer > 0) {
1928                         error = EINPROGRESS;
1929                         break;
1930                 }
1931                 n = sc->sc_naps;
1932                 if (sc->sc_firmware_type == WI_LUCENT) {
1933                         off = 0;
1934                         reslen = WI_WAVELAN_RES_SIZE;
1935                 } else {
1936                         off = sizeof(struct wi_scan_p2_hdr);
1937                         reslen = WI_PRISM2_RES_SIZE;
1938                 }
1939                 if (len < off + reslen * n)
1940                         n = (len - off) / reslen;
1941                 len = off + reslen * n;
1942                 if (off != 0) {
1943                         struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1944                         /*
1945                          * Prepend Prism-specific header.
1946                          */
1947                         if (len < sizeof(struct wi_scan_p2_hdr)) {
1948                                 error = ENOSPC;
1949                                 break;
1950                         }
1951                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1952                         p2->wi_rsvd = 0;
1953                         p2->wi_reason = n;      /* XXX */
1954                 }
1955                 for (i = 0; i < n; i++, off += reslen) {
1956                         const struct wi_apinfo *ap = &sc->sc_aps[i];
1957
1958                         res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
1959                         res->wi_chan = ap->channel;
1960                         res->wi_noise = ap->noise;
1961                         res->wi_signal = ap->signal;
1962                         IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
1963                         res->wi_interval = ap->interval;
1964                         res->wi_capinfo = ap->capinfo;
1965                         res->wi_ssid_len = ap->namelen;
1966                         memcpy(res->wi_ssid, ap->name,
1967                                 IEEE80211_NWID_LEN);
1968                         if (sc->sc_firmware_type != WI_LUCENT) {
1969                                 /* XXX not saved from Prism cards */
1970                                 memset(res->wi_srates, 0,
1971                                         sizeof(res->wi_srates));
1972                                 res->wi_rate = ap->rate;
1973                                 res->wi_rsvd = 0;
1974                         }
1975                 }
1976                 break;
1977
1978         default:
1979                 if (sc->sc_enabled) {
1980                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1981                             &len);
1982                         break;
1983                 }
1984                 switch (wreq.wi_type) {
1985                 case WI_RID_MAX_DATALEN:
1986                         wreq.wi_val[0] = htole16(sc->sc_max_datalen);
1987                         len = sizeof(u_int16_t);
1988                         break;
1989                 case WI_RID_RTS_THRESH:
1990                         wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
1991                         len = sizeof(u_int16_t);
1992                         break;
1993                 case WI_RID_CNFAUTHMODE:
1994                         wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
1995                         len = sizeof(u_int16_t);
1996                         break;
1997                 case WI_RID_NODENAME:
1998                         if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
1999                                 error = ENOSPC;
2000                                 break;
2001                         }
2002                         len = sc->sc_nodelen + sizeof(u_int16_t);
2003                         wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
2004                         memcpy(&wreq.wi_val[1], sc->sc_nodename,
2005                             sc->sc_nodelen);
2006                         break;
2007                 default:
2008                         return ieee80211_cfgget(ic, cmd, data, cr);
2009                 }
2010                 break;
2011         }
2012         if (error)
2013                 return error;
2014         wreq.wi_len = (len + 1) / 2 + 1;
2015         return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
2016 }
2017
2018 static int
2019 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
2020 {
2021         struct wi_softc *sc = ifp->if_softc;
2022         struct ieee80211com *ic = &sc->sc_ic;
2023         struct ifreq *ifr = (struct ifreq *)data;
2024         struct wi_req wreq;
2025         struct mbuf *m;
2026         int i, len, error, mif, val;
2027         struct ieee80211_rateset *rs;
2028
2029         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
2030         if (error)
2031                 return error;
2032         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
2033         switch (wreq.wi_type) {
2034         case WI_RID_DBM_ADJUST:
2035                 return ENODEV;
2036
2037         case WI_RID_NODENAME:
2038                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2039                     le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
2040                         error = ENOSPC;
2041                         break;
2042                 }
2043                 if (sc->sc_enabled) {
2044                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2045                             len);
2046                         if (error)
2047                                 break;
2048                 }
2049                 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
2050                 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen);
2051                 break;
2052
2053         case WI_RID_MICROWAVE_OVEN:
2054         case WI_RID_ROAMING_MODE:
2055         case WI_RID_SYSTEM_SCALE:
2056         case WI_RID_FRAG_THRESH:
2057                 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
2058                     (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
2059                         break;
2060                 if (wreq.wi_type == WI_RID_ROAMING_MODE &&
2061                     (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
2062                         break;
2063                 if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
2064                     (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
2065                         break;
2066                 if (wreq.wi_type == WI_RID_FRAG_THRESH &&
2067                     (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
2068                         break;
2069                 /* FALLTHROUGH */
2070         case WI_RID_RTS_THRESH:
2071         case WI_RID_CNFAUTHMODE:
2072         case WI_RID_MAX_DATALEN:
2073                 if (sc->sc_enabled) {
2074                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2075                             sizeof(u_int16_t));
2076                         if (error)
2077                                 break;
2078                 }
2079                 switch (wreq.wi_type) {
2080                 case WI_RID_FRAG_THRESH:
2081                         ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
2082                         break;
2083                 case WI_RID_RTS_THRESH:
2084                         ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
2085                         break;
2086                 case WI_RID_MICROWAVE_OVEN:
2087                         sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
2088                         break;
2089                 case WI_RID_ROAMING_MODE:
2090                         sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
2091                         break;
2092                 case WI_RID_SYSTEM_SCALE:
2093                         sc->sc_system_scale = le16toh(wreq.wi_val[0]);
2094                         break;
2095                 case WI_RID_CNFAUTHMODE:
2096                         sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
2097                         break;
2098                 case WI_RID_MAX_DATALEN:
2099                         sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
2100                         break;
2101                 }
2102                 break;
2103
2104         case WI_RID_TX_RATE:
2105                 switch (le16toh(wreq.wi_val[0])) {
2106                 case 3:
2107                         ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE;
2108                         break;
2109                 default:
2110                         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
2111                         for (i = 0; i < rs->rs_nrates; i++) {
2112                                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
2113                                     / 2 == le16toh(wreq.wi_val[0]))
2114                                         break;
2115                         }
2116                         if (i == rs->rs_nrates)
2117                                 return EINVAL;
2118                         ic->ic_fixed_rate = i;
2119                 }
2120                 if (sc->sc_enabled)
2121                         error = wi_write_txrate(sc);
2122                 break;
2123
2124         case WI_RID_SCAN_APS:
2125                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2126                         error = wi_scan_ap(sc, 0x3fff, 0x000f);
2127                 break;
2128
2129         case WI_RID_SCAN_REQ:           /* compatibility interface */
2130                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2131                         error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
2132                 break;
2133
2134         case WI_RID_MGMT_XMIT:
2135                 if (!sc->sc_enabled) {
2136                         error = ENETDOWN;
2137                         break;
2138                 }
2139                 if (ic->ic_mgtq.ifq_len > 5) {
2140                         error = EAGAIN;
2141                         break;
2142                 }
2143                 /* XXX wi_len looks in u_int8_t, not in u_int16_t */
2144                 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL);
2145                 if (m == NULL) {
2146                         error = ENOMEM;
2147                         break;
2148                 }
2149                 IF_ENQUEUE(&ic->ic_mgtq, m);
2150                 break;
2151
2152         case WI_RID_MIF:
2153                 mif = wreq.wi_val[0];
2154                 val = wreq.wi_val[1];
2155                 error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
2156                 break;
2157
2158         case WI_RID_PROCFRAME:          /* ignore for compatibility */
2159                 break;
2160
2161         case WI_RID_OWN_SSID:
2162                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2163                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
2164                         error = ENOSPC;
2165                         break;
2166                 }
2167                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2168                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
2169                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
2170                 error = ENETRESET;
2171                 break;
2172
2173         default:
2174                 if (sc->sc_enabled) {
2175                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2176                             len);
2177                         if (error)
2178                                 break;
2179                 }
2180                 error = ieee80211_cfgset(ic, cmd, data);
2181                 break;
2182         }
2183         return error;
2184 }
2185
2186 static int
2187 wi_write_txrate(struct wi_softc *sc)
2188 {
2189         struct ieee80211com *ic = &sc->sc_ic;
2190         int i;
2191         u_int16_t rate;
2192
2193         if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
2194                 rate = 0;       /* auto */
2195         else
2196                 rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
2197                     IEEE80211_RATE_VAL) / 2;
2198
2199         /* rate: 0, 1, 2, 5, 11 */
2200
2201         switch (sc->sc_firmware_type) {
2202         case WI_LUCENT:
2203                 switch (rate) {
2204                 case 0:                 /* auto == 11mbps auto */
2205                         rate = 3;
2206                         break;
2207                 /* case 1, 2 map to 1, 2*/
2208                 case 5:                 /* 5.5Mbps -> 4 */
2209                         rate = 4;
2210                         break;
2211                 case 11:                /* 11mbps -> 5 */
2212                         rate = 5;
2213                         break;
2214                 default:
2215                         break;
2216                 }
2217                 break;
2218         default:
2219                 /* Choose a bit according to this table.
2220                  *
2221                  * bit | data rate
2222                  * ----+-------------------
2223                  * 0   | 1Mbps
2224                  * 1   | 2Mbps
2225                  * 2   | 5.5Mbps
2226                  * 3   | 11Mbps
2227                  */
2228                 for (i = 8; i > 0; i >>= 1) {
2229                         if (rate >= i)
2230                                 break;
2231                 }
2232                 if (i == 0)
2233                         rate = 0xf;     /* auto */
2234                 else
2235                         rate = i;
2236                 break;
2237         }
2238         return wi_write_val(sc, WI_RID_TX_RATE, rate);
2239 }
2240
2241 static int
2242 wi_key_alloc(struct ieee80211com *ic, const struct ieee80211_key *k,
2243         ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
2244 {
2245         struct wi_softc *sc = ic->ic_ifp->if_softc;
2246
2247         /*
2248          * When doing host encryption of outbound frames fail requests
2249          * for keys that are not marked w/ the SWCRYPT flag so the
2250          * net80211 layer falls back to s/w crypto.  Note that we also
2251          * fixup existing keys below to handle mode changes.
2252          */
2253         if ((sc->sc_encryption & HOST_ENCRYPT) &&
2254             (k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0)
2255                 return 0;
2256         return sc->sc_key_alloc(ic, k, keyix, rxkeyix);
2257 }
2258
2259 static int
2260 wi_write_wep(struct wi_softc *sc)
2261 {
2262         struct ieee80211com *ic = &sc->sc_ic;
2263         int error = 0;
2264         int i, keylen;
2265         u_int16_t val;
2266         struct wi_key wkey[IEEE80211_WEP_NKID];
2267
2268         switch (sc->sc_firmware_type) {
2269         case WI_LUCENT:
2270                 val = (ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
2271                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
2272                 if (error)
2273                         break;
2274                 if (!(ic->ic_flags & IEEE80211_F_PRIVACY))
2275                         break;
2276                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_def_txkey);
2277                 if (error)
2278                         break;
2279                 memset(wkey, 0, sizeof(wkey));
2280                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2281                         keylen = ic->ic_nw_keys[i].wk_keylen;
2282                         wkey[i].wi_keylen = htole16(keylen);
2283                         memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
2284                             keylen);
2285                 }
2286                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
2287                     wkey, sizeof(wkey));
2288                 sc->sc_encryption = 0;
2289                 break;
2290
2291         case WI_INTERSIL:
2292         case WI_SYMBOL:
2293                 if (ic->ic_flags & IEEE80211_F_PRIVACY) {
2294                         /*
2295                          * ONLY HWB3163 EVAL-CARD Firmware version
2296                          * less than 0.8 variant2
2297                          *
2298                          *   If promiscuous mode disable, Prism2 chip
2299                          *  does not work with WEP .
2300                          * It is under investigation for details.
2301                          * (ichiro@netbsd.org)
2302                          */
2303                         if (sc->sc_firmware_type == WI_INTERSIL &&
2304                             sc->sc_sta_firmware_ver < 802 ) {
2305                                 /* firm ver < 0.8 variant 2 */
2306                                 wi_write_val(sc, WI_RID_PROMISC, 1);
2307                         }
2308                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2309                             sc->sc_cnfauthmode);
2310                         /* XXX should honor IEEE80211_F_DROPUNENC */
2311                         val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
2312                         /*
2313                          * Encryption firmware has a bug for HostAP mode.
2314                          */
2315                         if (sc->sc_firmware_type == WI_INTERSIL &&
2316                             ic->ic_opmode == IEEE80211_M_HOSTAP)
2317                                 val |= HOST_ENCRYPT;
2318                 } else {
2319                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2320                             IEEE80211_AUTH_OPEN);
2321                         val = HOST_ENCRYPT | HOST_DECRYPT;
2322                 }
2323                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
2324                 if (error)
2325                         break;
2326                 sc->sc_encryption = val;
2327                 if ((val & PRIVACY_INVOKED) == 0)
2328                         break;
2329                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
2330                     ic->ic_def_txkey);
2331                 if (error)
2332                         break;
2333                 if (val & HOST_DECRYPT)
2334                         break;
2335                 /*
2336                  * It seems that the firmware accept 104bit key only if
2337                  * all the keys have 104bit length.  We get the length of
2338                  * the transmit key and use it for all other keys.
2339                  * Perhaps we should use software WEP for such situation.
2340                  */
2341                 if (ic->ic_def_txkey != IEEE80211_KEYIX_NONE)
2342                         keylen = ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen;
2343                 else    /* XXX should not hapen */
2344                         keylen = IEEE80211_WEP_KEYLEN;
2345                 if (keylen > IEEE80211_WEP_KEYLEN)
2346                         keylen = 13;    /* 104bit keys */
2347                 else
2348                         keylen = IEEE80211_WEP_KEYLEN;
2349                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2350                         error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
2351                             ic->ic_nw_keys[i].wk_key, keylen);
2352                         if (error)
2353                                 break;
2354                 }
2355                 break;
2356         }
2357         /*
2358          * XXX horrible hack; insure pre-existing keys are
2359          * setup properly to do s/w crypto.
2360          */
2361         for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2362                 struct ieee80211_key *k = &ic->ic_nw_keys[i];
2363                 if (k->wk_flags & IEEE80211_KEY_XMIT) {
2364                         if (sc->sc_encryption & HOST_ENCRYPT)
2365                                 k->wk_flags |= IEEE80211_KEY_SWCRYPT;
2366                         else
2367                                 k->wk_flags &= ~IEEE80211_KEY_SWCRYPT;
2368                 }
2369         }
2370         return error;
2371 }
2372
2373 static int
2374 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
2375 {
2376         int                     i, s = 0;
2377
2378         if (sc->wi_gone)
2379                 return (ENODEV);
2380
2381         /* wait for the busy bit to clear */
2382         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
2383                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
2384                         break;
2385                 DELAY(1*1000);  /* 1ms */
2386         }
2387         if (i == 0) {
2388                 if_printf(&sc->sc_ic.ic_if, "wi_cmd: busy bit won't clear.\n" );
2389                 sc->wi_gone = 1;
2390                 return(ETIMEDOUT);
2391         }
2392
2393         CSR_WRITE_2(sc, WI_PARAM0, val0);
2394         CSR_WRITE_2(sc, WI_PARAM1, val1);
2395         CSR_WRITE_2(sc, WI_PARAM2, val2);
2396         CSR_WRITE_2(sc, WI_COMMAND, cmd);
2397
2398         if (cmd == WI_CMD_INI) {
2399                 /* XXX: should sleep here. */
2400                 DELAY(100*1000);                /* 100ms delay for init */
2401         }
2402         for (i = 0; i < WI_TIMEOUT; i++) {
2403                 /*
2404                  * Wait for 'command complete' bit to be
2405                  * set in the event status register.
2406                  */
2407                 s = CSR_READ_2(sc, WI_EVENT_STAT);
2408                 if (s & WI_EV_CMD) {
2409                         /* Ack the event and read result code. */
2410                         s = CSR_READ_2(sc, WI_STATUS);
2411                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
2412                         if (s & WI_STAT_CMD_RESULT) {
2413                                 return(EIO);
2414                         }
2415                         break;
2416                 }
2417                 DELAY(WI_DELAY);
2418         }
2419
2420         if (i == WI_TIMEOUT) {
2421                 if_printf(&sc->sc_ic.ic_if,
2422                     "timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
2423                 if (s == 0xffff)
2424                         sc->wi_gone = 1;
2425                 return(ETIMEDOUT);
2426         }
2427         return (0);
2428 }
2429
2430 static int
2431 wi_seek_bap(struct wi_softc *sc, int id, int off)
2432 {
2433         int i, status;
2434
2435         CSR_WRITE_2(sc, WI_SEL0, id);
2436         CSR_WRITE_2(sc, WI_OFF0, off);
2437
2438         for (i = 0; ; i++) {
2439                 status = CSR_READ_2(sc, WI_OFF0);
2440                 if ((status & WI_OFF_BUSY) == 0)
2441                         break;
2442                 if (i == WI_TIMEOUT) {
2443                         if_printf(&sc->sc_ic.ic_if,
2444                                   "timeout in wi_seek to %x/%x\n", id, off);
2445                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2446                         if (status == 0xffff)
2447                                 sc->wi_gone = 1;
2448                         return ETIMEDOUT;
2449                 }
2450                 DELAY(1);
2451         }
2452         if (status & WI_OFF_ERR) {
2453                 if_printf(&sc->sc_ic.ic_if, "failed in wi_seek to %x/%x\n",
2454                           id, off);
2455                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2456                 return EIO;
2457         }
2458         sc->sc_bap_id = id;
2459         sc->sc_bap_off = off;
2460         return 0;
2461 }
2462
2463 static int
2464 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2465 {
2466         u_int16_t *ptr;
2467         int i, error, cnt;
2468
2469         if (buflen == 0)
2470                 return 0;
2471         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2472                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2473                         return error;
2474         }
2475         cnt = (buflen + 1) / 2;
2476         ptr = (u_int16_t *)buf;
2477         for (i = 0; i < cnt; i++)
2478                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
2479         sc->sc_bap_off += cnt * 2;
2480         return 0;
2481 }
2482
2483 static int
2484 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2485 {
2486         u_int16_t *ptr;
2487         int i, error, cnt;
2488
2489         if (buflen == 0)
2490                 return 0;
2491
2492 #ifdef WI_HERMES_AUTOINC_WAR
2493   again:
2494 #endif
2495         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2496                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2497                         return error;
2498         }
2499         cnt = (buflen + 1) / 2;
2500         ptr = (u_int16_t *)buf;
2501         for (i = 0; i < cnt; i++)
2502                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
2503         sc->sc_bap_off += cnt * 2;
2504
2505 #ifdef WI_HERMES_AUTOINC_WAR
2506         /*
2507          * According to the comments in the HCF Light code, there is a bug
2508          * in the Hermes (or possibly in certain Hermes firmware revisions)
2509          * where the chip's internal autoincrement counter gets thrown off
2510          * during data writes:  the autoincrement is missed, causing one
2511          * data word to be overwritten and subsequent words to be written to
2512          * the wrong memory locations. The end result is that we could end
2513          * up transmitting bogus frames without realizing it. The workaround
2514          * for this is to write a couple of extra guard words after the end
2515          * of the transfer, then attempt to read then back. If we fail to
2516          * locate the guard words where we expect them, we preform the
2517          * transfer over again.
2518          */
2519         if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
2520                 CSR_WRITE_2(sc, WI_DATA0, 0x1234);
2521                 CSR_WRITE_2(sc, WI_DATA0, 0x5678);
2522                 wi_seek_bap(sc, id, sc->sc_bap_off);
2523                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2524                 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
2525                     CSR_READ_2(sc, WI_DATA0) != 0x5678) {
2526                         if_printf(&sc->sc_ic.ic_if,
2527                                   "detect auto increment bug, try again\n");
2528                         goto again;
2529                 }
2530         }
2531 #endif
2532         return 0;
2533 }
2534
2535 static int
2536 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
2537 {
2538         int error, len;
2539         struct mbuf *m;
2540
2541         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
2542                 if (m->m_len == 0)
2543                         continue;
2544
2545                 len = min(m->m_len, totlen);
2546
2547                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
2548                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
2549                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
2550                             totlen);
2551                 }
2552
2553                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
2554                         return error;
2555
2556                 off += m->m_len;
2557                 totlen -= len;
2558         }
2559         return 0;
2560 }
2561
2562 static int
2563 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
2564 {
2565         int i;
2566
2567         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
2568                 if_printf(&sc->sc_ic.ic_if,
2569                           "failed to allocate %d bytes on NIC\n", len);
2570                 return ENOMEM;
2571         }
2572
2573         for (i = 0; i < WI_TIMEOUT; i++) {
2574                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
2575                         break;
2576                 DELAY(1);
2577         }
2578         if (i == WI_TIMEOUT) {
2579                 if_printf(&sc->sc_ic.ic_if, "timeout in alloc\n");
2580                 return ETIMEDOUT;
2581         }
2582         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
2583         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
2584         return 0;
2585 }
2586
2587 static int
2588 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
2589 {
2590         int error, len;
2591         u_int16_t ltbuf[2];
2592
2593         /* Tell the NIC to enter record read mode. */
2594         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2595         if (error)
2596                 return error;
2597
2598         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2599         if (error)
2600                 return error;
2601
2602         if (le16toh(ltbuf[1]) != rid) {
2603                 if_printf(&sc->sc_ic.ic_if,
2604                           "record read mismatch, rid=%x, got=%x\n",
2605                           rid, le16toh(ltbuf[1]));
2606                 return EIO;
2607         }
2608         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
2609         if (*buflenp < len) {
2610                 if_printf(&sc->sc_ic.ic_if, "record buffer is too small, "
2611                           "rid=%x, size=%d, len=%d\n", rid, *buflenp, len);
2612                 return ENOSPC;
2613         }
2614         *buflenp = len;
2615         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2616 }
2617
2618 static int
2619 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2620 {
2621         int error;
2622         u_int16_t ltbuf[2];
2623
2624         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
2625         ltbuf[1] = htole16(rid);
2626
2627         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2628         if (error)
2629                 return error;
2630         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2631         if (error)
2632                 return error;
2633
2634         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2635 }
2636
2637 static int
2638 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
2639 {
2640         struct ifnet *ifp = &ic->ic_if;
2641         struct wi_softc *sc = ifp->if_softc;
2642         struct ieee80211_node *ni = ic->ic_bss;
2643         int buflen;
2644         u_int16_t val;
2645         struct wi_ssid ssid;
2646         u_int8_t old_bssid[IEEE80211_ADDR_LEN];
2647
2648         DPRINTF((ifp, "%s: %s -> %s\n", __func__,
2649                 ieee80211_state_name[ic->ic_state],
2650                 ieee80211_state_name[nstate]));
2651
2652         /*
2653          * Internal to the driver the INIT and RUN states are used
2654          * so bypass the net80211 state machine for other states.
2655          * Beware however that this requires use to net80211 state
2656          * management that otherwise would be handled for us.
2657          */
2658         switch (nstate) {
2659         case IEEE80211_S_INIT:
2660                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2661                 return sc->sc_newstate(ic, nstate, arg);
2662
2663         case IEEE80211_S_RUN:
2664                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2665                 buflen = IEEE80211_ADDR_LEN;
2666                 IEEE80211_ADDR_COPY(old_bssid, ni->ni_bssid);
2667                 wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
2668                 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
2669                 buflen = sizeof(val);
2670                 wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
2671                 /* XXX validate channel */
2672                 ni->ni_chan = &ic->ic_channels[le16toh(val)];
2673                 ic->ic_curchan = ni->ni_chan;
2674                 ic->ic_ibss_chan = ni->ni_chan;
2675
2676                 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2677                         htole16(ni->ni_chan->ic_freq);
2678                 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2679                         htole16(ni->ni_chan->ic_flags);
2680
2681                 /*
2682                  * XXX hack; unceremoniously clear
2683                  * IEEE80211_F_DROPUNENC when operating with
2684                  * wep enabled so we don't drop unencoded frames
2685                  * at the 802.11 layer.  This is necessary because
2686                  * we must strip the WEP bit from the 802.11 header
2687                  * before passing frames to ieee80211_input because
2688                  * the card has already stripped the WEP crypto
2689                  * header from the packet.
2690                  */
2691                 if (ic->ic_flags & IEEE80211_F_PRIVACY)
2692                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2693                 if (ic->ic_opmode != IEEE80211_M_HOSTAP) {
2694                         /* XXX check return value */
2695                         buflen = sizeof(ssid);
2696                         wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
2697                         ni->ni_esslen = le16toh(ssid.wi_len);
2698                         if (ni->ni_esslen > IEEE80211_NWID_LEN)
2699                                 ni->ni_esslen = IEEE80211_NWID_LEN;     /*XXX*/
2700                         memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
2701                 }
2702                 return sc->sc_newstate(ic, nstate, arg);
2703
2704         case IEEE80211_S_SCAN:
2705         case IEEE80211_S_AUTH:
2706         case IEEE80211_S_ASSOC:
2707                 break;
2708         }
2709
2710         ic->ic_state = nstate;          /* NB: skip normal ieee80211 handling */
2711         return 0;
2712 }
2713
2714 static int
2715 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
2716 {
2717         int error = 0;
2718         u_int16_t val[2];
2719
2720         if (!sc->sc_enabled)
2721                 return ENXIO;
2722         switch (sc->sc_firmware_type) {
2723         case WI_LUCENT:
2724                 wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
2725                 break;
2726         case WI_INTERSIL:
2727                 val[0] = htole16(chanmask);     /* channel */
2728                 val[1] = htole16(txrate);       /* tx rate */
2729                 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
2730                 break;
2731         case WI_SYMBOL:
2732                 /*
2733                  * XXX only supported on 3.x ?
2734                  */
2735                 val[0] = BSCAN_BCAST | BSCAN_ONETIME;
2736                 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
2737                     val, sizeof(val[0]));
2738                 break;
2739         }
2740         if (error == 0) {
2741                 sc->sc_scan_timer = WI_SCAN_WAIT;
2742                 sc->sc_ic.ic_if.if_timer = 1;
2743                 DPRINTF((&sc->sc_ic.ic_if, "wi_scan_ap: start scanning, "
2744                         "chamask 0x%x txrate 0x%x\n", chanmask, txrate));
2745         }
2746         return error;
2747 }
2748
2749 static void
2750 wi_scan_result(struct wi_softc *sc, int fid, int cnt)
2751 {
2752 #define N(a)    (sizeof (a) / sizeof (a[0]))
2753         int i, naps, off, szbuf;
2754         struct wi_scan_header ws_hdr;   /* Prism2 header */
2755         struct wi_scan_data_p2 ws_dat;  /* Prism2 scantable*/
2756         struct wi_apinfo *ap;
2757
2758         off = sizeof(u_int16_t) * 2;
2759         memset(&ws_hdr, 0, sizeof(ws_hdr));
2760         switch (sc->sc_firmware_type) {
2761         case WI_INTERSIL:
2762                 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
2763                 off += sizeof(ws_hdr);
2764                 szbuf = sizeof(struct wi_scan_data_p2);
2765                 break;
2766         case WI_SYMBOL:
2767                 szbuf = sizeof(struct wi_scan_data_p2) + 6;
2768                 break;
2769         case WI_LUCENT:
2770                 szbuf = sizeof(struct wi_scan_data);
2771                 break;
2772         default:
2773                 if_printf(&sc->sc_ic.ic_if,
2774                           "wi_scan_result: unknown firmware type %u\n",
2775                           sc->sc_firmware_type);
2776                 naps = 0;
2777                 goto done;
2778         }
2779         naps = (cnt * 2 + 2 - off) / szbuf;
2780         if (naps > N(sc->sc_aps))
2781                 naps = N(sc->sc_aps);
2782         sc->sc_naps = naps;
2783         /* Read Data */
2784         ap = sc->sc_aps;
2785         memset(&ws_dat, 0, sizeof(ws_dat));
2786         for (i = 0; i < naps; i++, ap++) {
2787                 wi_read_bap(sc, fid, off, &ws_dat,
2788                     (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
2789                 DPRINTF2((&sc->sc_ic.ic_if,
2790                           "wi_scan_result: #%d: off %d bssid %6D\n",
2791                           i, off, ws_dat.wi_bssid, ":"));
2792                 off += szbuf;
2793                 ap->scanreason = le16toh(ws_hdr.wi_reason);
2794                 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
2795                 ap->channel = le16toh(ws_dat.wi_chid);
2796                 ap->signal  = le16toh(ws_dat.wi_signal);
2797                 ap->noise   = le16toh(ws_dat.wi_noise);
2798                 ap->quality = ap->signal - ap->noise;
2799                 ap->capinfo = le16toh(ws_dat.wi_capinfo);
2800                 ap->interval = le16toh(ws_dat.wi_interval);
2801                 ap->rate    = le16toh(ws_dat.wi_rate);
2802                 ap->namelen = le16toh(ws_dat.wi_namelen);
2803                 if (ap->namelen > sizeof(ap->name))
2804                         ap->namelen = sizeof(ap->name);
2805                 memcpy(ap->name, ws_dat.wi_name, ap->namelen);
2806         }
2807 done:
2808         /* Done scanning */
2809         sc->sc_scan_timer = 0;
2810         DPRINTF((&sc->sc_ic.ic_if, "wi_scan_result: scan complete: ap %d\n",
2811                  naps));
2812 #undef N
2813 }
2814
2815 static void
2816 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
2817 {
2818         ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
2819             ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
2820         kprintf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
2821                 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
2822                 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
2823         kprintf(" rx_signal %u rx_rate %u rx_flow %u\n",
2824                 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
2825         kprintf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
2826                 wh->wi_tx_rtry, wh->wi_tx_rate,
2827                 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
2828         kprintf(" ehdr dst %6D src %6D type 0x%x\n",
2829                 wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
2830                 wh->wi_ehdr.ether_type);
2831 }
2832
2833 int
2834 wi_alloc(device_t dev, int rid)
2835 {
2836         struct wi_softc *sc = device_get_softc(dev);
2837
2838         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2839                 sc->iobase_rid = rid;
2840                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2841                     &sc->iobase_rid, 0, ~0, (1 << 6),
2842                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2843                 if (!sc->iobase) {
2844                         device_printf(dev, "No I/O space?!\n");
2845                         return (ENXIO);
2846                 }
2847
2848                 sc->wi_io_addr = rman_get_start(sc->iobase);
2849                 sc->wi_btag = rman_get_bustag(sc->iobase);
2850                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2851         } else {
2852                 sc->mem_rid = rid;
2853                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2854                     &sc->mem_rid, RF_ACTIVE);
2855
2856                 if (!sc->mem) {
2857                         device_printf(dev, "No Mem space on prism2.5?\n");
2858                         return (ENXIO);
2859                 }
2860
2861                 sc->wi_btag = rman_get_bustag(sc->mem);
2862                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2863         }
2864
2865
2866         sc->irq_rid = 0;
2867         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2868             RF_ACTIVE |
2869             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2870
2871         if (!sc->irq) {
2872                 wi_free(dev);
2873                 device_printf(dev, "No irq?!\n");
2874                 return (ENXIO);
2875         }
2876
2877         return (0);
2878 }
2879
2880 void
2881 wi_free(device_t dev)
2882 {
2883         struct wi_softc *sc = device_get_softc(dev);
2884
2885         if (sc->iobase != NULL) {
2886                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2887                 sc->iobase = NULL;
2888         }
2889         if (sc->irq != NULL) {
2890                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2891                 sc->irq = NULL;
2892         }
2893         if (sc->mem != NULL) {
2894                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2895                 sc->mem = NULL;
2896         }
2897 }
2898
2899 static int
2900 wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
2901 {
2902         int error = 0;
2903
2904         wreq->wi_len = 1;
2905
2906         switch (wreq->wi_type) {
2907         case WI_DEBUG_SLEEP:
2908                 wreq->wi_len++;
2909                 wreq->wi_val[0] = sc->wi_debug.wi_sleep;
2910                 break;
2911         case WI_DEBUG_DELAYSUPP:
2912                 wreq->wi_len++;
2913                 wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
2914                 break;
2915         case WI_DEBUG_TXSUPP:
2916                 wreq->wi_len++;
2917                 wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
2918                 break;
2919         case WI_DEBUG_MONITOR:
2920                 wreq->wi_len++;
2921                 wreq->wi_val[0] = sc->wi_debug.wi_monitor;
2922                 break;
2923         case WI_DEBUG_LEDTEST:
2924                 wreq->wi_len += 3;
2925                 wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
2926                 wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
2927                 wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
2928                 break;
2929         case WI_DEBUG_CONTTX:
2930                 wreq->wi_len += 2;
2931                 wreq->wi_val[0] = sc->wi_debug.wi_conttx;
2932                 wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
2933                 break;
2934         case WI_DEBUG_CONTRX:
2935                 wreq->wi_len++;
2936                 wreq->wi_val[0] = sc->wi_debug.wi_contrx;
2937                 break;
2938         case WI_DEBUG_SIGSTATE:
2939                 wreq->wi_len += 2;
2940                 wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
2941                 wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
2942                 break;
2943         case WI_DEBUG_CONFBITS:
2944                 wreq->wi_len += 2;
2945                 wreq->wi_val[0] = sc->wi_debug.wi_confbits;
2946                 wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
2947                 break;
2948         default:
2949                 error = EIO;
2950                 break;
2951         }
2952
2953         return (error);
2954 }
2955
2956 static int
2957 wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
2958 {
2959         int error = 0;
2960         u_int16_t               cmd, param0 = 0, param1 = 0;
2961
2962         switch (wreq->wi_type) {
2963         case WI_DEBUG_RESET:
2964         case WI_DEBUG_INIT:
2965         case WI_DEBUG_CALENABLE:
2966                 break;
2967         case WI_DEBUG_SLEEP:
2968                 sc->wi_debug.wi_sleep = 1;
2969                 break;
2970         case WI_DEBUG_WAKE:
2971                 sc->wi_debug.wi_sleep = 0;
2972                 break;
2973         case WI_DEBUG_CHAN:
2974                 param0 = wreq->wi_val[0];
2975                 break;
2976         case WI_DEBUG_DELAYSUPP:
2977                 sc->wi_debug.wi_delaysupp = 1;
2978                 break;
2979         case WI_DEBUG_TXSUPP:
2980                 sc->wi_debug.wi_txsupp = 1;
2981                 break;
2982         case WI_DEBUG_MONITOR:
2983                 sc->wi_debug.wi_monitor = 1;
2984                 break;
2985         case WI_DEBUG_LEDTEST:
2986                 param0 = wreq->wi_val[0];
2987                 param1 = wreq->wi_val[1];
2988                 sc->wi_debug.wi_ledtest = 1;
2989                 sc->wi_debug.wi_ledtest_param0 = param0;
2990                 sc->wi_debug.wi_ledtest_param1 = param1;
2991                 break;
2992         case WI_DEBUG_CONTTX:
2993                 param0 = wreq->wi_val[0];
2994                 sc->wi_debug.wi_conttx = 1;
2995                 sc->wi_debug.wi_conttx_param0 = param0;
2996                 break;
2997         case WI_DEBUG_STOPTEST:
2998                 sc->wi_debug.wi_delaysupp = 0;
2999                 sc->wi_debug.wi_txsupp = 0;
3000                 sc->wi_debug.wi_monitor = 0;
3001                 sc->wi_debug.wi_ledtest = 0;
3002                 sc->wi_debug.wi_ledtest_param0 = 0;
3003                 sc->wi_debug.wi_ledtest_param1 = 0;
3004                 sc->wi_debug.wi_conttx = 0;
3005                 sc->wi_debug.wi_conttx_param0 = 0;
3006                 sc->wi_debug.wi_contrx = 0;
3007                 sc->wi_debug.wi_sigstate = 0;
3008                 sc->wi_debug.wi_sigstate_param0 = 0;
3009                 break;
3010         case WI_DEBUG_CONTRX:
3011                 sc->wi_debug.wi_contrx = 1;
3012                 break;
3013         case WI_DEBUG_SIGSTATE:
3014                 param0 = wreq->wi_val[0];
3015                 sc->wi_debug.wi_sigstate = 1;
3016                 sc->wi_debug.wi_sigstate_param0 = param0;
3017                 break;
3018         case WI_DEBUG_CONFBITS:
3019                 param0 = wreq->wi_val[0];
3020                 param1 = wreq->wi_val[1];
3021                 sc->wi_debug.wi_confbits = param0;
3022                 sc->wi_debug.wi_confbits_param0 = param1;
3023                 break;
3024         default:
3025                 error = EIO;
3026                 break;
3027         }
3028
3029         if (error)
3030                 return (error);
3031
3032         cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
3033         error = wi_cmd(sc, cmd, param0, param1, 0);
3034
3035         return (error);
3036 }
3037
3038 /*
3039  * Special routines to download firmware for Symbol CF card.
3040  * XXX: This should be modified generic into any PRISM-2 based card.
3041  */
3042
3043 #define WI_SBCF_PDIADDR         0x3100
3044
3045 /* unaligned load little endian */
3046 #define GETLE32(p)      ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
3047 #define GETLE16(p)      ((p)[0] | ((p)[1]<<8))
3048
3049 int
3050 wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
3051     const void *secsym, int seclen)
3052 {
3053         uint8_t ebuf[256];
3054         int i;
3055
3056         /* load primary code and run it */
3057         wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
3058         if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
3059                 return EIO;
3060         wi_symbol_set_hcr(sc, WI_HCR_RUN);
3061         for (i = 0; ; i++) {
3062                 if (i == 10)
3063                         return ETIMEDOUT;
3064                 tsleep(sc, 0, "wiinit", 1);
3065                 if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
3066                         break;
3067                 /* write the magic key value to unlock aux port */
3068                 CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
3069                 CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
3070                 CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
3071                 CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
3072         }
3073
3074         /* issue read EEPROM command: XXX copied from wi_cmd() */
3075         CSR_WRITE_2(sc, WI_PARAM0, 0);
3076         CSR_WRITE_2(sc, WI_PARAM1, 0);
3077         CSR_WRITE_2(sc, WI_PARAM2, 0);
3078         CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
3079         for (i = 0; i < WI_TIMEOUT; i++) {
3080                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
3081                         break;
3082                 DELAY(1);
3083         }
3084         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
3085
3086         CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
3087         CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
3088         CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
3089             (uint16_t *)ebuf, sizeof(ebuf) / 2);
3090         if (GETLE16(ebuf) > sizeof(ebuf))
3091                 return EIO;
3092         if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
3093                 return EIO;
3094         return 0;
3095 }
3096
3097 static int
3098 wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
3099     const void *ebuf, int ebuflen)
3100 {
3101         const uint8_t *p, *ep, *q, *eq;
3102         char *tp;
3103         uint32_t addr, id, eid;
3104         int i, len, elen, nblk, pdrlen;
3105
3106         /*
3107          * Parse the header of the firmware image.
3108          */
3109         p = buf;
3110         ep = p + buflen;
3111         while (p < ep && *p++ != ' ');  /* FILE: */
3112         while (p < ep && *p++ != ' ');  /* filename */
3113         while (p < ep && *p++ != ' ');  /* type of the firmware */
3114         nblk = strtoul(p, &tp, 10);
3115         p = tp;
3116         pdrlen = strtoul(p + 1, &tp, 10);
3117         p = tp;
3118         while (p < ep && *p++ != 0x1a); /* skip rest of header */
3119
3120         /*
3121          * Block records: address[4], length[2], data[length];
3122          */
3123         for (i = 0; i < nblk; i++) {
3124                 addr = GETLE32(p);      p += 4;
3125                 len  = GETLE16(p);      p += 2;
3126                 CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3127                 CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3128                 CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3129                     (const uint16_t *)p, len / 2);
3130                 p += len;
3131         }
3132
3133         /*
3134          * PDR: id[4], address[4], length[4];
3135          */
3136         for (i = 0; i < pdrlen; ) {
3137                 id   = GETLE32(p);      p += 4; i += 4;
3138                 addr = GETLE32(p);      p += 4; i += 4;
3139                 len  = GETLE32(p);      p += 4; i += 4;
3140                 /* replace PDR entry with the values from EEPROM, if any */
3141                 for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
3142                         elen = GETLE16(q);      q += 2;
3143                         eid  = GETLE16(q);      q += 2;
3144                         elen--;         /* elen includes eid */
3145                         if (eid == 0)
3146                                 break;
3147                         if (eid != id)
3148                                 continue;
3149                         CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3150                         CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3151                         CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3152                             (const uint16_t *)q, len / 2);
3153                         break;
3154                 }
3155         }
3156         return 0;
3157 }
3158
3159 static int
3160 wi_symbol_set_hcr(struct wi_softc *sc, int mode)
3161 {
3162         uint16_t hcr;
3163
3164         CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
3165         tsleep(sc, 0, "wiinit", 1);
3166         hcr = CSR_READ_2(sc, WI_HCR);
3167         hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
3168         CSR_WRITE_2(sc, WI_HCR, hcr);
3169         tsleep(sc, 0, "wiinit", 1);
3170         CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
3171         tsleep(sc, 0, "wiinit", 1);
3172         return 0;
3173 }